diff options
| author | Andrew Burgess <andrew.burgess@embecosm.com> | 2021-08-12 10:14:50 +0100 |
|---|---|---|
| committer | Andrew Burgess <andrew.burgess@embecosm.com> | 2021-09-28 12:21:21 +0100 |
| commit | 63a4b10683992ae6ae2d93711369bc10df8fbce9 (patch) | |
| tree | 20dc03cda5cf230928b0e53766f7245baf3ae0e6 /libbacktrace | |
| parent | fbe3443dcfbc9fc47394a171ec7bd5a9f7a7231c (diff) | |
| download | binutils-gdb-63a4b10683992ae6ae2d93711369bc10df8fbce9.tar.gz | |
Copy in libbacktrace from gcc
This copies in libbacktrace from the gcc repository as it was in the
commit 62e420293a293608f383d9b9c7f2debd666e9fc9. GDB is going to
start using this library soon.
A dependency between GDB and libbacktrace has already been added to
the top level Makefile, so, after this commit, when building GDB,
libbacktrace will be built first. However, libbacktrace is not yet
linked into GDB, or used by GDB in any way.
It is possible to stop libbacktrace being built by configuring the
tree with --disable-libbacktrace.
This commit does NOT update src-release.sh, that will be done in the
next commit, this commit ONLY imports libbacktrace from gcc. This
means that if you try to make a release of GDB from exactly this
commit then the release tar file will not include libbacktrace.
However, as libbacktrace is an optional dependency this is fine.
Diffstat (limited to 'libbacktrace')
48 files changed, 42239 insertions, 0 deletions
diff --git a/libbacktrace/ChangeLog b/libbacktrace/ChangeLog new file mode 100644 index 00000000000..dc986b9370e --- /dev/null +++ b/libbacktrace/ChangeLog @@ -0,0 +1,1774 @@ +2021-08-13 Sergei Trofimovich <siarheit@google.com> + + * install-debuginfo-for-buildid.sh.in: Force non-localized readelf + output with LANG=C. + +2021-06-28 Clément Chigot <clement.chigot@atos.net> + + * xcoff.c (SSUBTYP_DWRNGES): New define. + (xcoff_add): Use correct XCOFF DWARF section subtype + for DEBUG_RANGES. Remove lineoff workaround. + Adjust base_address. + (xcoff_initialize_syminfo): Adapt to new base_address. + (xcoff_lookup_pc): Likewise. + (xcoff_initialize_fileline): Likewise. + +2021-05-03 H.J. Lu <hjl.tools@gmail.com> + + PR bootstrap/99703 + * configure: Regenerated. + +2021-03-03 Ian Lance Taylor <iant@golang.org> + + * dwarf.c (read_line_program): Don't special case file 0. + (read_function_entry): Likewise. + +2021-03-02 Ian Lance Taylor <iant@golang.org> + + PR libbacktrace/98818 + * dwarf.c (dwarf_buf_error): Add errnum parameter. Change all + callers. + * backtrace.h: Update backtrace_error_callback comment. + +2021-02-12 Ian Lance Taylor <iant@golang.org> + + * configure.ac: Check for objcopy --add-gnu-debuglink by using + objcopy --help. + * configure: Regenerate + +2021-01-18 Ian Lance Taylor <iant@golang.org> + + * Makefile.am (%_dwz): If dwz fails, use uncompressed debug info. + * Makefile.in: Regenerate. + * configure: Regenerate. + +2021-01-18 Ian Lance Taylor <iant@golang.org> + + PR debug/98716 + * dwarf.c (read_v2_paths): Allocate zero entry for dirs and + filenames. + (read_line_program): Remove parameter u, change caller. Don't + subtract one from dirs and filenames index. + (read_function_entry): Don't subtract one from filenames index. + +2021-01-05 Samuel Thibault <samuel.thibault@ens-lyon.org> + + * configure: Re-generate. + +2020-12-05 Iain Sandoe <iain@sandoe.co.uk> + + PR target/97865 + * configure: Regenerate. + +2020-12-02 Ian Lance Taylor <iant@golang.org> + + * dwarf.c (resolve_string): Use > rather than >= to check whether + string index extends past buffer. + (resolve_addr_index): Similarly for address index. + +2020-11-29 John David Anglin <danglin@gcc.gnu.org> + + * configure: Regenerate. + +2020-10-20 Ian Lance Taylor <iant@golang.org> + + * internal.h (ATTRIBUTE_FALLTHROUGH): Define. + * elf.c (elf_zlib_inflate): Use ATTRIBUTE_FALLTHROUGH. + +2020-09-28 Ian Lance Taylor <iant@golang.org> + + PR libbacktrace/97082 + * Makefile.am (check_DATA): Add mtest.dSYM if USE_DSYMUTIL. + * Makefile.in: Regenerate. + +2020-09-28 Ian Lance Taylor <iant@golang.org> + + PR libbacktrace/97227 + * configure.ac (USE_DSYMUTIL): Define instead of HAVE_DSYMUTIL. + * Makefile.am: Change all uses of HAVE_DSYMUTIL to USE_DSYMUTIL. + * configure: Regenerate. + * Makefile.in: Regenerate. + +2020-09-23 Ian Lance Taylor <iant@golang.org> + + * dwarf.c (report_inlined_functions): Handle PC == -1 and PC == + p->low. + (dwarf_lookup_pc): Likewise. + +2020-09-17 Ian Lance Taylor <iant@golang.org> + + PR libbacktrace/97080 + * fileline.c (backtrace_syminfo_to_full_callback): New function. + (backtrace_syminfo_to_full_error_callback): New function. + * elf.c (elf_nodebug): Call syminfo_fn if possible. + * internal.h (struct backtrace_call_full): Define. + (backtrace_syminfo_to_full_callback): Declare. + (backtrace_syminfo_to_full_error_callback): Declare. + * mtest.c (f3): Only check all[i] if data.index permits. + +2020-09-16 Iain Sandoe <iain@sandoe.co.uk> + + * macho.c (MACH_O_CPU_TYPE_PPC): New. + (MACH_O_CPU_TYPE_PPC64): New. + Add compile-tests for powerpc to the Mach-O variants. + +2020-09-14 Ian Lance Taylor <iant@golang.org> + + PR libbacktrace/93608 + Add support for MiniDebugInfo. + * elf.c (struct elf_view): Define. Replace most uses of + backtrace_view with elf_view. + (elf_get_view): New static functions. Replace most calls of + backtrace_get_view with elf_get_view. + (elf_release_view): New static functions. Replace most calls of + backtrace_release_view with elf_release_view. + (elf_uncompress_failed): Rename from elf_zlib_failed. Change all + callers. + (LZMA_STATES, LZMA_POS_STATES, LZMA_DIST_STATES): Define. + (LZMA_DIST_SLOTS, LZMA_DIST_MODEL_START): Define. + (LZMA_DIST_MODEL_END, LZMA_FULL_DISTANCES): Define. + (LZMA_ALIGN_SIZE, LZMA_LEN_LOW_SYMBOLS): Define. + (LZMA_LEN_MID_SYMBOLS, LZMA_LEN_HIGH_SYMBOLS): Define. + (LZMA_LITERAL_CODERS_MAX, LZMA_LITERAL_CODER_SIZE): Define. + (LZMA_PROB_IS_MATCH_LEN, LZMA_PROB_IS_REP_LEN): Define. + (LZMA_PROB_IS_REP0_LEN, LZMA_PROB_IS_REP1_LEN): Define. + (LZMA_PROB_IS_REP2_LEN, LZMA_PROB_IS_REP0_LONG_LEN): Define. + (LZMA_PROB_DIST_SLOT_LEN, LZMA_PROB_DIST_SPECIAL_LEN): Define. + (LZMA_PROB_DIST_ALIGN_LEN): Define. + (LZMA_PROB_MATCH_LEN_CHOICE_LEN): Define. + (LZMA_PROB_MATCH_LEN_CHOICE2_LEN): Define. + (LZMA_PROB_MATCH_LEN_LOW_LEN): Define. + (LZMA_PROB_MATCH_LEN_MID_LEN): Define. + (LZMA_PROB_MATCH_LEN_HIGH_LEN): Define. + (LZMA_PROB_REP_LEN_CHOICE_LEN): Define. + (LZMA_PROB_REP_LEN_CHOICE2_LEN): Define. + (LZMA_PROB_REP_LEN_LOW_LEN): Define. + (LZMA_PROB_REP_LEN_MID_LEN): Define. + (LZMA_PROB_REP_LEN_HIGH_LEN): Define. + (LZMA_PROB_LITERAL_LEN): Define. + (LZMA_PROB_IS_MATCH_OFFSET, LZMA_PROB_IS_REP_OFFSET): Define. + (LZMA_PROB_IS_REP0_OFFSET, LZMA_PROB_IS_REP1_OFFSET): Define. + (LZMA_PROB_IS_REP2_OFFSET): Define. + (LZMA_PROB_IS_REP0_LONG_OFFSET): Define. + (LZMA_PROB_DIST_SLOT_OFFSET): Define. + (LZMA_PROB_DIST_SPECIAL_OFFSET): Define. + (LZMA_PROB_DIST_ALIGN_OFFSET): Define. + (LZMA_PROB_MATCH_LEN_CHOICE_OFFSET): Define. + (LZMA_PROB_MATCH_LEN_CHOICE2_OFFSET): Define. + (LZMA_PROB_MATCH_LEN_LOW_OFFSET): Define. + (LZMA_PROB_MATCH_LEN_MID_OFFSET): Define. + (LZMA_PROB_MATCH_LEN_HIGH_OFFSET): Define. + (LZMA_PROB_REP_LEN_CHOICE_OFFSET): Define. + (LZMA_PROB_REP_LEN_CHOICE2_OFFSET): Define. + (LZMA_PROB_REP_LEN_LOW_OFFSET): Define. + (LZMA_PROB_REP_LEN_MID_OFFSET): Define. + (LZMA_PROB_REP_LEN_HIGH_OFFSET): Define. + (LZMA_PROB_LITERAL_OFFSET): Define. + (LZMA_PROB_TOTAL_COUNT): Define. + (LZMA_IS_MATCH, LZMA_IS_REP, LZMA_IS_REP0): Define. + (LZMA_IS_REP1, LZMA_IS_REP2, LZMA_IS_REP0_LONG): Define. + (LZMA_DIST_SLOT, LZMA_DIST_SPECIAL, LZMA_DIST_ALIGN): Define. + (LZMA_MATCH_LEN_CHOICE, LZMA_MATCH_LEN_CHOICE2): Define. + (LZMA_MATCH_LEN_LOW, LZMA_MATCH_LEN_MID): Define. + (LZMA_MATCH_LEN_HIGH, LZMA_REP_LEN_CHOICE): Define. + (LZMA_REP_LEN_CHOICE2, LZMA_REP_LEN_LOW): Define. + (LZMA_REP_LEN_MID, LZMA_REP_LEN_HIGH, LZMA_LITERAL): Define. + (elf_lzma_varint): New static function. + (elf_lzma_range_normalize): New static function. + (elf_lzma_bit, elf_lzma_integer): New static functions. + (elf_lzma_reverse_integer): New static function. + (elf_lzma_len, elf_uncompress_lzma_block): New static functions. + (elf_uncompress_lzma): New static function. + (backtrace_uncompress_lzma): New function. + (elf_add): Add memory and memory_size parameters. Change all + callers. Look for .gnu_debugdata section, and, if found, + decompress it and use it for symbols and debug info. Permit the + descriptor parameter to be -1. + * internal.h (backtrace_uncompress_lzma): Declare. + * mtest.c: New file. + * xztest.c: New file. + * configure.ac: Check for nm, xz, and comm programs. Check for + liblzma library. + (HAVE_MINIDEBUG): Define. + * Makefile.am (mtest_SOURCES): Define. + (mtest_CFLAGS, mtest_LDADD): Define. + (TESTS): Add mtest_minidebug if HAVE_MINIDEBUG. + (%_minidebug): New pattern rule, if HAVE_MINIDEBUG. + (xztest_SOURCES, xztest_CFLAGS, xztest_LDADD): Define. + (xztest_alloc_SOURCES, xztest_alloc_CFLAGS): Define + (xztest_alloc_LDADD): Define. + (BUILDTESTS): Add mtest, xztest, xztest_alloc. + (CLEANFILES): Add files created by minidebug pattern. + (btest.lo): Correct INCDIR reference. + (mtest.lo, xztest.lo, ztest.lo): New targets. + * configure: Regenerate. + * config.h.in: Regenerate. + * Makefile.in: Regenerate. + +2020-09-09 Ian Lance Taylor <iant@golang.org> + + * pecoff.c (coff_initialize_syminfo): Add is_64 parameter. + (coff_add): Determine and pass is_64. + +2020-09-09 Ian Lance Taylor <iant@golang.org> + + PR libbacktrace/96973 + * fileline.c (macho_get_executable_path): New static function. + (fileline_initialize): Call macho_get_executable_path. + +2020-09-09 Ian Lance Taylor <iant@golang.org> + + * dwarf.c (function_addrs_search): Compare against the next entry + low address, not the high address. + (unit_addrs_search): Likewise. + (build_address_map): Add a trailing unit_addrs. + (read_function_entry): Add a trailing function_addrs. + (read_function_info): Likewise. + (report_inlined_functions): Search backward for function_addrs + match. + (dwarf_lookup_pc): Search backward for unit_addrs and + function_addrs matches. + +2020-09-08 Ian Lance Taylor <iant@golang.org> + + * simple.c (simple_unwind): Correct comment spelling. + +2020-09-08 Ian Lance Taylor <iant@golang.org> + + * macho.c (macho_add_dsym): Make space for '/' in dsym. Use + correct length when freeing diralc. + +2020-09-08 Ian Lance Taylor <iant@golang.org> + + PR libbacktrace/96973 + * macho.c (macho_add_fat): Correctly swap 32-bit file offset. + +2020-09-08 Ian Lance Taylor <iant@golang.org> + + PR libbacktrace/96971 + * filetype.awk: Only match magic number at start of line. + +2020-08-24 Ian Lance Taylor <iant@golang.org> + + * macho.c (MACH_O_MH_MAGIC_FAT_64): Define. + (MACH_O_MH_CIGAM_FAT_64): Define. + (struct macho_fat_arch_64): Define. + (macho_add_fat): Add and use is_64 parameter. + (macho_add): Recognize 64-bit fat files. + +2020-07-30 H.J. Lu <hjl.tools@gmail.com> + + PR bootstrap/96202 + * configure: Regenerated. + +2020-07-08 Ian Lance Taylor <iant@golang.org> + + * configure.ac: Test linker support for DWARF5 + * configure: Regenerate + +2020-05-29 H.J. Lu <hjl.tools@gmail.com> + + PR bootstrap/95413 + * configure: Regenerated. + +2020-05-15 H.J. Lu <hongjiu.lu@intel.com> + + PR bootstrap/95147 + * configure: Regenerated. + +2020-05-14 H.J. Lu <hongjiu.lu@intel.com> + + * configure: Regenerated. + +2020-05-13 Ian Lance Taylor <iant@golang.org> + + * ztest.c (test_large): Mark state ATTRIBUTE_UNUSED. + +2020-05-13 Ian Lance Taylor <iant@golang.org> + + PR go/95061 + * posix.c (backtrace_open): Treat EACCESS like ENOENT. + +2020-05-12 H.J. Lu <hongjiu.lu@intel.com> + + * Makefile.am (AM_CFLAGS): Add $(CET_HOST_FLAGS). + * configure.ac: Add GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) and + AC_SUBST(CET_HOST_FLAGS). Clear CET_HOST_FLAGS if jit isn't + enabled. + * Makefile.in: Regenerated. + * configure: Likewise. + +2020-05-11 Ian Lance Taylor <iant@golang.org> + + PR libbacktrace/95012 + * configure.ac: Check for getpagesize declaration. + * mmap.c: Declare getpagesize if necessary. + * mmapio.c: Likewise. + * configure: Regenerate. + * config.h.in: Regenerate. + * Makefile.in: Regenerate. + +2020-05-09 Roland McGrath <mcgrathr@google.com> + + * elf.c (elf_add): Bail early if there are no section headers at all. + +2020-05-09 Ian Lance Taylor <iant@golang.org> + + * elf.c (elf_add): Don't free strtab if an error occurs after + recording symbol information. + +2020-05-09 Ian Lance Taylor <iant@golang.org> + + PR libbacktrace/88745 + * macho.c: New file. + * filetype.awk: Recognize Mach-O files. + * Makefile.am (FORMAT_FILES): Add macho.c. + (check_DATA): New variable. Set to .dSYM if HAVE_DSYMUTIL. + (%.dSYM): New pattern target. + (test_macho_SOURCES, test_macho_CFLAGS): New targets. + (test_macho_LDADD): New target. + (BUILDTESTS): Add test_macho. + (macho.lo): Add dependencies. + * configure.ac: Recognize macho file type. Check for + mach-o/dyld.h. Don't try to run objcopy if we don't find it. + Look for dsymutil and define a HAVE_DSYMUTIL conditional. + * Makefile.in: Regenerate. + * configure: Regenerate. + * config.h.in: Regenerate. + +2020-05-09 Ian Lance Taylor <iant@golang.org> + + * read.c (backtrace_get_view): Support short read. + +2020-05-09 Ian Lance Taylor <iant@golang.org> + + * elf.c (elf_add): If debug sections are very large or far apart, + read them individually rather than as a single view. + +2020-05-08 Ian Lance Taylor <iant@golang.org> + + * fileline.c (sysctl_exec_name): New static function. + (sysctl_exec_name1): New macro or static function. + (sysctl_exec_name2): Likewise. + (fileline_initialize): Try sysctl_exec_name[12]. + * configure.ac: Check for sysctl args to fetch executable name. + * configure: Regenerate. + * config.h.in: Regenerate. + +2020-02-15 Ian Lance Taylor <iant@golang.org> + + * ztest.c (test_large): Update file to current libgo test file. + +2020-02-03 Ian Lance Taylor <iant@golang.org> + + * Makefile.am (libbacktrace_TEST_CFLAGS): Define. + (test_elf32_CFLAGS): Use $(libbacktrace_test_CFLAGS). + (test_elf_64_CFLAGS, test_xcoff_32_CFLAGS): Likewise. + (test_xcoff_64_CFLAGS, test_pecoff_CFLAGS): Likewise. + (test_unknown_CFLAGS, unittest_CFLAGS): Likewise. + (unittest_alloc_CFLAGS, allocfail_CFLAGS): Likewise. + (b2test_CFLAGS, b3test_CFLAGS, btest_CFLAGS): Likewise. + (btest_lto_CFLAGS, btest_alloc_CFLAGS, stest_CFLAGS): Likewise. + (stest_alloc_CFLAGS): Likewise. + * Makefile.in: Regenerate. + * ztest.c (error_callback_compress): Mark vdata unused. + (test_large): Add casts to avoid warnings. + +2020-01-01 Jakub Jelinek <jakub@redhat.com> + + Update copyright years. + +2019-12-13 Ian Lance Taylor <iant@golang.org> + + Add DWARF 5 support. + * dwarf.c (struct attr): Add val field. + (enum attr_val_encoding): Add ATTR_VAL_ADDDRESS_INDEX, + ATTR_VAL_STRING_INDEX, ATTR_VAL_RNGLISTS_INDEX. + (struct line_header): Add addrsize field. + (struct line_header_format): Define. + (struct unit): Add str_offsets_base, addr_base, and rnglists_base + fields. + (read_uint24): New static function. + (read_attribute): Add implicit_val parameter. Replace dwarf_str + and dwarf_str_size parameters with dwarf_sections parameter. Add + support for new DWARF 5 forms. Change all callers. + (resolve_string): New static function. + (resolve_addr_index): Likewise. + (read_abbrevs): Support DW_FORM_implicit_const. + (struct pcrange): Add lowpc_is_addr_index, highpc_is_addr_Index, + and ranges_is_index fields. + (update_pcrange): Support DWARF 5 encodings. + (add_high_low_range): New static function, split out of + add_ranges. + (add_ranges_from_ranges): Likewise. + (add_ranges_from_rnglists): New static function. + (add_ranges): Just call new helper functions. + (find_address_ranges): Use resolve_string for strings, after + reading all attributes. Handle new DWARF 5 attributes. + (build_address_map): Support DWARF 5 compilation units. + (read_v2_paths): New static function, split out of + read_line_header. + (read_lnct): New static function. + (read_line_header_format_entries): Likewise. + (read_line_header): Add ddata parameter. Support DWARF 5 line + headers. Call new helper functions. Change all callers. + (read_line_program): Use addrsize from line program header. Don't + special case directory index 0 for DWARF 5. + (read_referenced_name): Use resolve_string. + (read_function_entry): Handle DWARF 5 encodings. Use + resolve_string. + * internal.h (enum dwarf_section): Add DEBUG_ADDR, + DEBUG_STR_OFFSETS, DEBUG_LINE_STR, DEBUG_RNGLISTS. + * elf.c (dwarf_section_names): Add new section names. + * pecoff.c (dwarf_section_names): Likewise. + * xcoff.c (xcoff_add): Clear dwarf_sections before setting + fields. + * configure.ac: Define HAVE_DWARF5 automake conditional. + * Makefile.am (dwarf5_SOURCES): New variable if HAVE_DWARF5. + (dwarf5_CFLAGS, dwarf5_LDADD): Likewise. + (dwarf5_alloc_SOURCES, dwarf5_alloc_CFLAGS): Likewise. + (dwarf5_alloc_LDADD): Likewise. + (BUILDTESTS): Add dwarf5 tests if HAVE_DWARF5. + (CLEANFILES, clean-local): Define. + +2019-12-08 Ian Lance Taylor <iant@golang.org> + + * dwarf.c (struct pcrange): Define. + (update_pcrange, add_ranges): New static functions. + (add_unit_addr): Change signature to work with add_ranges. Don't + add base_address here. + (add_unit_ranges): Remove. + (find_address_ranges): Replace str/ranges parameters with + dwarf_sections. Use update_pcrange and add_ranges. Change all + callers. + (add_function_range): Change signature to work with add_ranges. + Don't add base_address here. + (add_function_ranges): Remove. + (read_function_entry): Use update_pcrange and add_ranges. + +2019-12-04 Ian Lance Taylor <iant@golang.org> + + * edtest.c (test1): Add noclone attribute. + +2019-12-04 Ian Lance Taylor <iant@golang.org> + + * internal.h (enum dwarf_section): Define. + (struct dwarf_sections): Define. + (backtrace_dwarf_add): Update declaration to replace specific + section parameters with dwarf_sections parameter. + * dwarf.c (struct dwarf_data): Replace specific section fields + with dwarf_sections field. + (read_attribute): Use dwarf_sections with altlink. + (build_address_map): Replace specific section parameters with + dwarf_sections parameter. Change all callers. + (read_line_info): Use dwarf_sections with ddata. + (read_referenced_name): Likewise. + (add_function_ranges): Likewise. + (read_function_entry): Likewise. + (read_function_info): Likewise. + (build_dwarf_data): Replace specific section parameters with + dwarf_sections parameter. Change all callers. + (backtrace_dwarf_add): Likewise. + * elf.c (enum debug_section): Remove. + (dwarf_section_names): Remove .zdebug names. + (elf_add): Track zsections separately. Build dwarf_sections. + * pecoff.c (enum debug_section): Remove. + (struct debug_section_info): Remove data field. + (coff_add): Build dwarf_sections. + * xcoff.c (enum dwarf_section): Remove. Replace DWSECT_xxx + references with DEBUG_xxx references. + (xcoff_add): Build dwarf_sections. + +2019-09-27 Maciej W. Rozycki <macro@wdc.com> + + * configure: Regenerate. + +2019-09-26 Ian Lance Taylor <iant@golang.org> + + PR libbacktrace/91908 + * pecoff.c (backtrace_initialize): Explicitly cast unchecked + __sync_bool_compare_and_swap to void. + * xcoff.c (backtrace_initialize): Likewise. + +2019-09-03 Ulrich Weigand <uweigand@de.ibm.com> + + * configure.ac: Remove references to spu. + * configure: Regenerate. + +2019-05-24 Clement Chigot <clement.chigot@atos.net> + + * Makefile.am (BUILDTESTS): Remove test_elf, add test_elf_32 and + test_elf_64. + * Makefile.in: Regenerate. + +2019-05-14 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> + + * configure.ac (have_dl_iterate_phdr): Remove *-*-solaris2.10* + handling. + * configure: Regenerate. + +2019-03-11 Ian Lance Taylor <iant@golang.org> + + PR libbacktrace/89669 + * Makefile.am (BUILDTESTS): Only add ztest and ztest_alloc if + HAVE_ELF. + * Makefile.in: Regenerate. + +2019-02-26 Tom de Vries <tdevries@suse.de> + + * btest.c (test5): Allow global.* as minimal symbol name for global. + +2019-02-26 Tom de Vries <tdevries@suse.de> + + * Makefile.am (TESTS): Only add b3test_dwz_buildid if HAVE_DWZ. + * Makefile.in: Regenerate. + +2019-02-12 Tom de Vries <tdevries@suse.de> + + PR libbacktrace/81983 + * dwarf.c (dwarf_lookup_pc): Don't call bsearch if nmemb == 0. + +2019-02-10 Tom de Vries <tdevries@suse.de> + + * Makefile.am (BUILDTESTS): Add btest_lto. + * Makefile.in: Regenerate. + * btest.c (test1, f2, f3, test3, f22, f23): Declare with + __attribute__((noclone)). + +2019-02-08 Tom de Vries <tdevries@suse.de> + + * backtrace.c (backtrace_full): Declare with __attribute__((noinline)). + * print.c (backtrace_print): Same. + * simple.c (backtrace_simple): Same. + +2019-02-08 Tom de Vries <tdevries@suse.de> + + PR libbacktrace/78063 + * dwarf.c (build_address_map): Keep all parsed units. + (read_referenced_name_from_attr): Handle DW_FORM_ref_addr. + +2019-01-31 Tom de Vries <tdevries@suse.de> + + PR libbacktrace/89136 + * elf.c (elf_add): Read build-id if with_buildid_data. Fix + 'debugaltlink_name_len =+ 1'. + +2019-01-29 Tom de Vries <tdevries@suse.de> + + * install-debuginfo-for-buildid.sh.in: New script. + * Makefile.am (check_PROGRAMS): Add b2test and b3test. + (TESTS): Add b2test_buildid and b3test_dwz_buildid. + * Makefile.in: Regenerate. + * configure.ac (HAVE_ELF): Set with AM_CONDITIONAL. + (READELF): Set with AC_CHECK_PROG. + (install-debuginfo-for-buildid.sh): Generate with AC_CONFIG_FILES. + * configure: Regenerate. + * elf.c (SYSTEM_BUILD_ID_DIR): Factor out of ... + (elf_open_debugfile_by_buildid): ... here. + +2019-01-29 Tom de Vries <tdevries@suse.de> + + * Makefile.am: Replace check_PROGRAMS with BUILDTESTS, except for + allocfail. + (TESTS): Don't add check_PROGRAMS. Add BUILDTESTS. + (check_PROGRAMS): Add BUILDTESTS. + * Makefile.in: Regenerate. + +2019-01-28 Tom de Vries <tdevries@suse.de> + + * Makefile.am (xcoff_%.c): Generate sed result into temporary file. + Use $< to access prerequisite. + * Makefile.in: Regenerate. + +2019-01-25 Nathan Sidwell <nathan@acm.org> + + * elf.c (elf_add): Pass "" filename to recursive call with + separated debug. + +2019-01-25 Tom de Vries <tdevries@suse.de> + + * elf.c (elf_add): When handling .gnu_debugaltlink, call elf_add with + filename == "". + * Makefile.am (TESTS): Add btest_dwz_gnudebuglink. + * Makefile.in: Regenerate. + +2019-01-25 Tom de Vries <tdevries@suse.de> + + * Makefile.am: Rewrite dtest rule into "%_gnudebuglink" pattern rule. + (TESTS): Rename dtest to btest_gnudebuglink. + * Makefile.in: Regenerate. + +2019-01-23 Tom de Vries <tdevries@suse.de> + + * dwarf.c (struct unit): Use size_t for low_offset/high_offset fields. + (units_search, find_unit): Use size_t for offset. + (build_address_map): Use size_t for unit_offset. + +2019-01-20 Gerald Pfeifer <gerald@pfeifer.com> + + * allocfail.c (main): Increase portability of printf statement. + +2019-01-18 Ian Lance Taylor <iant@golang.org> + + PR libbacktrace/88890 + * mmapio.c (backtrace_get_view): Change size parameter to + uint64_t. Check that value fits in size_t. + * read.c (backtrace_get_view): Likewise. + * internal.h (backtrace_get_view): Update declaration. + * elf.c (elf_add): Pass shstrhdr->sh_size to backtrace_get_view. + +2019-01-17 Tom de Vries <tdevries@suse.de> + + PR libbacktrace/82857 + * configure.ac (DWZ): Set with AC_CHECK_PROG. + (HAVE_DWZ): Set with AM_CONDITIONAL. + * configure: Regenerate. + * Makefile.am (TESTS): Add btest_dwz. + * Makefile.in: Regenerate. + +2019-01-17 Tom de Vries <tdevries@suse.de> + + PR libbacktrace/82857 + * dwarf.c (enum attr_val_encoding): Add ATTR_VAL_REF_ALT_INFO. + (read_attribute): Handle DW_FORM_GNU_ref_alt using + ATTR_VAL_REF_ALT_INFO. + (read_referenced_name_from_attr): Handle DW_FORM_GNU_ref_alt. + +2019-01-17 Tom de Vries <tdevries@suse.de> + + * dwarf.c (struct unit): Add low_offset and high_offset fields. + (struct unit_vector): New type. + (struct dwarf_data): Add units and units_counts fields. + (find_unit): New function. + (find_address_ranges): Add and handle unit_tag parameter. + (build_address_map): Add and handle units_vec parameter. + (build_dwarf_data): Pass units_vec to build_address_map. Store resulting + units vector. + +2019-01-17 Tom de Vries <tdevries@suse.de> + + PR libbacktrace/82857 + * dwarf.c (read_attribute): Handle DW_FORM_GNU_strp_alt + using altlink. + +2019-01-17 Tom de Vries <tdevries@suse.de> + + * dwarf.c (enum attr_val_encoding): Add ATTR_VAL_NONE. + (read_attribute): Add altlink parameter. Handle missing altlink for + DW_FORM_GNU_strp_alt and DW_FORM_GNU_ref_alt. + (find_address_ranges, build_address_map, build_dwarf_data): Add and + handle altlink parameter. + (read_referenced_name, read_function_entry): Add argument to + read_attribute call. + +2019-01-17 Tom de Vries <tdevries@suse.de> + + * dwarf.c (struct dwarf_data): Add altlink field. + (backtrace_dwarf_add): Add and handle fileline_altlink parameter. + * elf.c (elf_add): Add argument to backtrace_dwarf_add call. + (phdr_callback, backtrace_initialize): Add argument to elf_add calls. + * internal.h (backtrace_dwarf_add): Add fileline_altlink parameter. + * pecoff.c (coff_add): Add argument to backtrace_dwarf_add call. + * xcoff.c (xcoff_add): Same. + +2019-01-17 Tom de Vries <tdevries@suse.de> + + * internal.h (backtrace_dwarf_add): Add fileline_entry parameter. + * dwarf.c (backtrace_dwarf_add): Add and handle fileline_entry parameter. + * elf.c (elf_add): Add and handle fileline_entry parameter. Add + argument to backtrace_dwarf_add call. + (phdr_callback, backtrace_initialize): Add argument to elf_add calls. + * pecoff.c (coff_add): Add argument to backtrace_dwarf_add call. + * xcoff.c (xcoff_add): Same. + +2019-01-17 Tom de Vries <tdevries@suse.de> + + * elf.c (elf_add): Add and handle with_buildid_data and + with_buildid_size parameters. Handle .gnu_debugaltlink section. + (phdr_callback, backtrace_initialize): Add arguments to elf_add calls. + +2019-01-16 Tom de Vries <tdevries@suse.de> + + * dwarf.c (read_referenced_name_from_attr): New function. Factor out + of ... + (read_referenced_name): ... here, and ... + (read_function_entry): ... here. + +2019-01-16 Tom de Vries <tdevries@suse.de> + + * dwarf.c (read_referenced_name): Don't allow DW_AT_name to override any + name. + (read_function_entry): Same. Don't allow name found via + DW_AT_abstract_origin or case DW_AT_specification to override linkage + name. + +2019-01-09 Sandra Loosemore <sandra@codesourcery.com> + + PR other/16615 + + * backtrace.h: Mechanically replace "can not" with "cannot". + +2019-01-01 Jakub Jelinek <jakub@redhat.com> + + Update copyright years. + +2018-12-29 Gerald Pfeifer <gerald@pfeifer.com> + + * Makefile.am (xcoff_%.c): Use an actual newline instead of \n + in sed pattern. + * Makefile.in: Regenerate. + +2018-12-28 Tom de Vries <tdevries@suse.de> + + * dwarf.c (build_address_map): Reuse unused units. + +2018-12-28 Tom de Vries <tdevries@suse.de> + + * dwarf.c (build_address_map): Simplify by removing local variable + abbrevs. + +2018-12-28 Ian Lance Taylor <iant@golang.org> + Tom de Vries <tdevries@suse.de> + + PR libbacktrace/88063 + * dwarf.c (free_unit_addrs_vector): Remove. + (build_address_map): Keep track of allocated units in vector. Free + allocated units and corresponding abbrevs upon failure. Remove now + redundant call to free_unit_addrs_vector. Free addrs vector upon + failure. Free allocated unit vector. + +2018-12-28 Tom de Vries <tdevries@suse.de> + + * dwarf.c (build_address_map): Free addrs vector upon failure. + +2018-12-14 Tom de Vries <tdevries@suse.de> + + PR testsuite/88491 + * allocfail.sh: Remove "set -o pipefail". + +2018-12-12 Tom de Vries <tdevries@suse.de> + + * Makefile.am (TESTS): Add allocfail.sh. + (check_PROGRAMS): Add allocfail. + * Makefile.in: Regenerate. + * instrumented_alloc.c: New file. Redefine malloc and realloc. + Include alloc.c. + * allocfail.c: New file. + * allocfail.sh: New file. + +2018-11-30 Tom de Vries <tdevries@suse.de> + + * Makefile.am (check_PROGRAMS): Add test_elf, test_xcoff_32, + test_xcoff_64, test_pecoff and test_unknown. + * Makefile.in: Regenerate. + * test_format.c: New file. + +2018-11-30 Tom de Vries <tdevries@suse.de> + + * Makefile.am : Add _with_alloc version for each test in + check_PROGRAMS. + * Makefile.in: Regenerate. + +2018-11-30 Tom de Vries <tdevries@suse.de> + + * internal.h (backtrace_vector_free): New static inline fuction, + factored out of ... + * dwarf.c (read_line_info): ... here. + +2018-11-28 Tom de Vries <tdevries@suse.de> + + * dwarf.c (read_abbrevs): Fix handling of abbrevs->abbrevs allocation + failure. + +2018-11-27 Tom de Vries <tdevries@suse.de> + + * mmap.c (backtrace_vector_release): Same. + * unittest.c (test1): Add check. + +2018-11-27 Tom de Vries <tdevries@suse.de> + + * alloc.c (backtrace_vector_release): Handle vec->size == 0 using free + instead of realloc. + * Makefile.am (check_PROGRAMS): Add unittest. + * Makefile.in: Regenerate. + * unittest.c: New file. + +2018-11-22 Tom de Vries <tdevries@suse.de> + + * dwarf.c (read_initial_length): Factor out of ... + (build_address_map, read_line_info): ... here. + +2018-11-21 Tom de Vries <tdevries@suse.de> + + * dwarf.c (read_string): Factor out of ... + (read_attribute, read_line_header, read_line_program): ... here. + +2018-10-31 Joseph Myers <joseph@codesourcery.com> + + PR bootstrap/82856 + * Makefile.am: Include multilib.am. + * configure.ac: Remove AC_PREREQ. Use AC_LANG_SOURCE. + * Makefile.in, aclocal.m4, config.h.in, configure: Regenerate. + +2018-10-05 Ian Lance Taylor <iant@golang.org> + + PR libbacktrace/87529 + * backtrace.h: Document that backtrace_create_state should be + called only once. + +2018-08-05 Iain Buclaw <ibuclaw@gdcproject.org> + + * configure.ac: Move define of HAVE_ZLIB into check for -lz. + * Makefile.in: Regenerate. + * config.h.in: Likewise. + * configure: Likewise. + +2018-08-01 Tony Reix <tony.reix@atos.net> + + * xcoff.c (struct xcoff_line, struct xcoff_line_vector): Remove. + (struct xcoff_func, struct xcoff_func_vector): New structs. + (xcoff_syminfo): Drop leading dot from symbol name. + (xcoff_line_compare, xcoff_line_search): Remove. + (xcoff_func_compare, xcoff_func_search): New static functions. + (xcoff_lookup_pc): Search function table. + (xcoff_add_line, xcoff_process_linenos): Remove. + (xcoff_initialize_fileline): Build function table. + +2018-06-21 Denis Khalikov <d.khalikov@partner.samsung.com> + + PR other/86198 + * elf.c (elf_add): Increase ".note.gnu.build-id" section size + checking up to 36 bytes. + +2018-04-24 H.J. Lu <hongjiu.lu@intel.com> + + * configure: Regenerated. + +2018-04-19 Jakub Jelinek <jakub@redhat.com> + + * configure: Regenerated. + +2018-04-17 Ian Lance Taylor <iant@golang.org> + + * backtrace.c: Revert last two changes. Don't call mmap + directly. + +2018-04-17 Ian Lance Taylor <iant@golang.org> + + * backtrace.c: Include backtrace-supported.h before checking + BACKTRACE_USES_MALLOC. + +2018-04-17 Ian Lance Taylor <iant@golang.org> + + * backtrace.c (backtrace_full): When testing whether we can + allocate memory, call mmap directly, and munmap the memory. + +2018-04-04 Jakub Jelinek <jakub@redhat.com> + + PR other/85161 + * elf.c (elf_zlib_fetch): Fix up predefined macro names in test for + big endian, only use 32-bit loads if endianity macros are predefined + and indicate big or little endian. + +2018-02-14 Igor Tsimbalist <igor.v.tsimbalist@intel.com> + + PR target/84148 + * configure: Regenerate. + +2018-02-15 Jakub Jelinek <jakub@redhat.com> + + PR other/82368 + * elf.c (SHT_PROGBITS): Undefine and define. + +2018-02-14 Jakub Jelinek <jakub@redhat.com> + + PR other/82368 + * elf.c (EM_PPC64, EF_PPC64_ABI): Undefine and define. + (struct elf_ppc64_opd_data): New type. + (elf_initialize_syminfo): Add opd argument, handle symbols + pointing into the PowerPC64 ELFv1 .opd section. + (elf_add): Read .opd section on PowerPC64 ELFv1, pass pointer + to structure with .opd data to elf_initialize_syminfo. + +2018-01-31 Ian Lance Taylor <iant@golang.org> + + * elf.c (elf_add): Close descriptor if we use a debugfile. + * btest.c (check_open_files): New static function. + (main): Call check_open_files. + +2018-01-25 Ian Lance Taylor <iant@golang.org> + + * elf.c (elf_open_debugfile_by_debuglink): Don't check CRC if the + desired CRC is zero. + (elf_add): Don't clear *found_sym and *found_dwarf if debuginfo. + +2018-01-25 Ian Lance Taylor <iant@golang.org> + + * pecoff.c (coff_add): Only release syms_view if it is valid. + +2018-01-25 Ian Lance Taylor <iant@golang.org> + + * pecoff.c (coff_add): Another memcpy -> coff_read4 fix. + +2018-01-24 Ian Lance Taylor <iant@golang.org> + + * pecoff.c (coff_add): Use coff_read4, not memcpy. + +2018-01-24 Ian Lance Taylor <iant@golang.org> + + PR other/68239 + * mmap.c (backtrace_free_locked): Don't put more than 16 entries + on the free list. + +2018-01-19 Tony Reix <tony.reix@atos.net> + + * xcoff.c (xcoff_incl_compare): New function. + (xcoff_incl_search): New function. + (xcoff_process_linenos): Use bsearch to find include file. + (xcoff_initialize_fileline): Sort include file information. + +2018-01-16 Ian Lance Taylor <iant@golang.org> + + * elf.c (codes) [GENERATE_FIXED_HUFFMAN_TABLE]: Fix size to be + 288. + (main) [GENERATE_FIXED_HUFFMAN_TABLE]: Pass 288 to + elf_zlib_inflate_table. Generate elf_zlib_default_dist_table. + (elf_zlib_default_table): Update. + (elf_zlib_default_dist_table): New static array. + (elf_zlib_inflate): Use elf_zlib_default_dist_table for dist table + for block type 1. + * ztest.c (struct zlib_test): Add uncompressed_len. + (tests): Initialize uncompressed_len field. Add new test case. + (test_samples): Use uncompressed_len field. + +2018-01-03 Jakub Jelinek <jakub@redhat.com> + + Update copyright years. + +2017-11-17 Igor Tsimbalist <igor.v.tsimbalist@intel.com> + + * configure.ac: Add CET_FLAGS to EXTRA_FLAGS. + * aclocal.m4: Regenerate. + * Makefile.in: Likewise. + * configure: Likewise. + +2017-10-06 Ian Lance Taylor <iant@golang.org> + + * ztest.c (test_large): Pass unsigned long *, not size_t *, to + zlib uncompress function. + +2017-10-05 Ian Lance Taylor <iant@golang.org> + + * elf.c (elf_zlib_fetch): Change pval argument to uint64_t *. + Read a four byte integer. + (elf_zlib_inflate): Change val to uint64_t. Align pin to a 32-bit + boundary before ever calling elf_zlib_fetch. + * ztest.c (test_large): Simplify print statements a bit. + +2017-10-02 Ian Lance Taylor <iant@golang.org> + + * ztest.c: #include <errno.h>. + (TEST_TIMING): Don't define, don't test. + (xclock_gettime, xclockid_t): Define if !HAVE_CLOCK_GETTIME. + (clockid_t, clock_gettime, CLOCK_REALTIME): Likewise. + (ZLIB_CLOCK_GETTIME_ARG): Define. + * configure.ac: Change clock_gettime_link to CLOCK_GETTIME_LINK. + * Makefile.am: Likewise. + * configure, Makefile.in: Rebuild. + +2017-10-02 Thomas Schwinge <thomas@codesourcery.com> + + PR other/67165 + * Makefile.am: Append the content of clock_gettime_link to + ztest_LDADD. + * configure.ac: Test for the case that clock_gettime is in librt. + * Makefile.in: Regenerate. + * configure: Likewise. + + PR other/67165 + * configure.ac: Check for clock_gettime. + * config.h.in: Regenerate. + * configure: Likewise. + * ztest.c (average_time, test_large): Conditionalize test timing + on clock_gettime availability. + +2017-09-29 Tony Reix <tony.reix@atos.net> + + * xcoff.c: Initial support for DWARF debug sections in XCOFF. + (STYP_DWARF, SSUBTYP_DW*): Define. + (enum dwarf_section): Define. + (struct dwsect_info): Define. + (xcoff_add): Look for DWARF sections, pass them to + backtrace_dwarf_add. + +2017-09-28 Ian Lance Taylor <iant@golang.org> + + PR other/67165 + * elf.c (__builtin_prefetch): Define if not __GNUC__. + (unlikely): Define. + (SHF_UNCOMPRESSED, ELFCOMPRESS_ZLIB): Define. + (b_elf_chdr): Define type. + (enum debug_section): Add ZDEBUG_xxx values. + (debug_section_names): Add names for new sections. + (struct debug_section_info): Add compressed field. + (elf_zlib_failed, elf_zlib_fetch): New static functions. + (HUFFMAN_TABLE_SIZE, HUFFMAN_VALUE_MASK): Define. + (HUFFMAN_BITS_SHIFT, HUFFMAN_BITS_MASK): Define. + (HUFFMAN_SECONDARY_SHIFT): Define. + (ZDEBUG_TABLE_SIZE): Define. + (ZDEBUG_TABLE_CODELEN_OFFSET, ZDEBUG_TABLE_WORK_OFFSET): Define. + (final_next_secondary): New static variable if + BACKTRACE_GENERATE_FIXED_HUFFMAN_TABLE. + (elf_zlib_inflate_table): New static function. + (BACKTRACE_GENERATE_FIXED_HUFFMAN_TABLE): If define, define main + function to produce fixed Huffman table. + (elf_zlib_default_table): New static variable. + (elf_zlib_inflate): New static function. + (elf_zlib_verify_checksum): Likewise. + (elf_zlib_inflate_and_verify): Likewise. + (elf_uncompress_zdebug): Likewise. + (elf_uncompress_chdr): Likewise. + (backtrace_uncompress_zdebug): New extern function. + (elf_add): Look for .zdebug sections and SHF_COMPRESSED debug + sections, and uncompress them. + * internal.h (backtrace_compress_zdebug): Declare. + * ztest.c: New file. + * configure.ac: Check for -lz and check whether the linker + supports --compress-debug-sections. + * Makefile.am (ztest_SOURCES): New variable. + (ztest_CFLAGS, ztest_LDADD): New variables. + (check_PROGRAMS): Add ztest. + (ctestg_SOURCES): New variable. + (ctestg_CFLAGS, ctestg_LDFLAGS, ctestg_LDADD): New variables. + (ctesta_SOURCES): New variable. + (ctesta_CFLAGS, ctesta_LDFLAGS, ctesta_LDADD): New variables. + (check_PROGRAMS): Add ctestg and ctesta. + * configure, config.h.in, Makefile.in: Rebuild. + +2017-09-22 Ian Lance Taylor <iant@golang.org> + + PR sanitizer/77631 + * configure.ac: Check for lstat and readlink. + * elf.c (lstat, readlink): Provide dummy versions if real versions + are not available. + * configure, config.h.in: Rebuild. + +2017-09-21 Ian Lance Taylor <iant@google.com> + + PR go/82284 + * elf.c (backtrace_initialize): Set pd.exe_filename. + +2017-09-20 Ian Lance Taylor <iant@golang.org> + Denis Khalikov <d.khalikov@partner.samsung.com> + + PR sanitizer/77631 + Support for external debug info. + * elf.c: Include <errno.h>, <sys/stat.h>, <unistd.h>. + (S_ISLNK): Define if not defined. + (xstrnlen): Define if strnlen is not available. + (b_elf_note): Define type. + (NT_GNU_BUILD_ID): Define macro. + (elf_crc32, elf_crc32_file): New static functions. + (elf_is_symlink, elf_readlink): New static functions. + (elf_open_debugfile_by_buildid): New static function. + (elf_try_debugfile): New static function. + (elf_find_debugfile_by_debuglink): New static function. + (elf_open_debugfile_by_debuglink): New static function. + (elf_add): Add filename and debuginfo parameters. Adjust all + callers. Look for external debug info notes, and try to fetch + debug info from external file. + (struct phdr_data): Add exe_filename field. + (phdr_callback): Pass filename to elf_add. + (backtrace_initialize): Add filename parameter. + * internal.h (backtrace_initialize): Add filename parameter. + * fileline.c (fileline_initialize): Pass filename to + backtrace_initialize. + * pecoff.c (fileline_initialize): Add unused filename parameter. + * unknown.c (fileline_initialize): Likewise. + * xcoff.c (fileline_initialize): Likewise. + * configure.ac: Check for objcopy --add-gnu-debuglink. + * Makefile.am (dtest): New test target. + * configure, Makefile.in: Rebuild. + +2017-09-12 Steve Ellcey <sellcey@cavium.com> + + PR other/81096 + * Makefile.am (ttest_CFLAGS): Add $(AM_CFLAGS) + * Makefile.in: Regenerate. + +2017-09-12 Steve Ellcey <sellcey@cavium.com> + + PR other/81096 + * libbacktrace/Makefile.in + (HAVE_PTHREAD_TRUE@@NATIVE_TRUE@ttest_CFLAGS): Add $(AM_CFLAGS) + +2017-08-02 David Edelsohn <dje.gcc@gmail.com> + + PR bootstrap/81638 + * xcoff.c (xcoff_process_linenos): Initialize incl to NULL. + +2017-07-28 Tony Reix <tony.reix@atos.net> + + * xcoff.c: Don't leak a file descriptor if an archive is malformed. + +2017-07-28 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> + + * fileline.c (fileline_initialize): Print pid_t as long. + +2017-07-26 Tony Reix <tony.reix@atos.net> + + * configure.ac: Check for XCOFF32/XCOFF64. Check for loadquery. + * filetype.awk: Separate AIX XCOFF32 and XCOFF64. + * xcoff.c: Add support for AIX XCOFF32 and XCOFF64 formats. + * configure, config.h.in: Regenerate. + +2017-07-21 Tony Reix <tony.reix@atos.net> + + * filetype.awk: Add AIX XCOFF type detection. + * configure.ac: Recognize xcoff format. + * Makefile.am (FORMAT_FILES): Add xcoff.c. + * fileline.c: Include <unistd.h>. + (fileline_initialize): Add case for AIX procfs. + * xcoff.c: New file. + * configure, Makefile.in: Rebuild. + +2017-06-21 Richard Biener <rguenther@suse.de> + + * configure.ac: Add AC_SYS_LARGEFILE. + * config.h.in: Regenerate. + * configure: Likewise. + +2017-06-11 Ian Lance Taylor <iant@golang.org> + + * elf.c (backtrace_initialize): Always set *fileline_fn. + * ttest.c: New file. + * btest.c: Move support functions into testlib.c. Change calls to + check to pass file name. + * testlib.c: New file, copied from (part of) btest.c. + * testlib.h: New file, declarations for testlib.c. + * edtest.c: Use testlib.h and testlib.c. + * configure.ac: Test for -pthread, set HAVE_PTHREAD conditional. + * Makefile.am (btest_SOURCES): Add testlib.c. + (edtest_SOURCES): Likewise. + (CHECK_PROGRAMS): Add ttest if HAVE_PTHREAD. + (ttest_SOURCES, ttest_CFLAGS, ttest_LDADD): Define. + * configure, Makefile.in: Rebuild. + +2017-05-19 Than McIntosh <thanm@google.com> + + * dwarf.c (free_line_header): Don't free dirs if dirs_count == 0. + (read_line_header): Don't allocate dirs if dirs_count == 0. + * edtest.c: New file. + * edtest2.c: New file. + * Makefile.am (edtest_SOURCES, edtest_LDADD): Define. + (check_PROGRAMS): Add edtest. + (edtest2_build.c, gen_edtest2_build): New targets. + * Makefile.in: Rebuild. + +2017-03-08 Sam Thursfield <sam.thursfield@codethink.co.uk> + + * btest.c (test5): Replace #ifdef guard with 'unused' attribute + to fix compile warning when BACKTRACE_SUPPORTED isn't defined. + +2017-01-01 Jakub Jelinek <jakub@redhat.com> + + Update copyright years. + +2016-11-15 Matthias Klose <doko@ubuntu.com> + + * configure: Regenerate. + +2016-09-11 Carlos Liam <carlos@aarzee.me> + + * all: Remove meaningless trailing whitespace. + +2016-05-18 Uros Bizjak <ubizjak@gmail.com> + + PR target/71161 + * elf.c (phdr_callback) [__i386__]: Add + __attribute__((__force_align_arg_pointer__)). + +2016-03-02 Maxim Ostapenko <m.ostapenko@partner.samsung.com> + + * elf.c (backtrace_initialize): Properly initialize elf_fileline_fn to + avoid possible crash. + (elf_add): Don't set *fileline_fn to elf_nodebug value in case of + missing debug info anymore. + +2016-02-06 John David Anglin <danglin@gcc.gnu.org> + + * mmap.c (MAP_FAILED): Define if not defined. + +2016-01-04 Jakub Jelinek <jakub@redhat.com> + + Update copyright years. + +2015-12-18 Andris Pavenis <andris.pavenis@iki.fi> + + * configure.ac: Specify that DJGPP do not have mmap + even when sys/mman.h exists. + * configure: Regenerate + +2015-12-09 John David Anglin <danglin@gcc.gnu.org> + + PR libgfortran/68115 + * configure.ac: Set libbacktrace_cv_sys_sync to no on hppa*-*-hpux*. + * configure: Regenerate. + * elf.c (backtrace_initialize): Cast __sync_bool_compare_and_swap call + to void. + +2015-09-17 Ian Lance Taylor <iant@google.com> + + * posix.c (backtrace_open): Cast second argument of open() to int. + +2015-09-11 Ian Lance Taylor <iant@google.com> + + * Makefile.am (backtrace.lo): Depend on internal.h. + (sort.lo, stest.lo): Add explicit dependencies. + * Makefile.in: Rebuild. + +2015-09-09 Hans-Peter Nilsson <hp@axis.com> + + * backtrace.c: #include <sys/types.h>. + +2015-09-08 Ian Lance Taylor <iant@google.com> + + PR other/67457 + * backtrace.c: #include "internal.h". + (struct backtrace_data): Add can_alloc field. + (unwind): If can_alloc is false, don't try to get file/line + information. + (backtrace_full): Set can_alloc field in bdata. + * alloc.c (backtrace_alloc): Don't call error_callback if it is + NULL. + * mmap.c (backtrace_alloc): Likewise. + * internal.h: Update comments for backtrace_alloc and + backtrace_free. + +2015-09-08 Ian Lance Taylor <iant@google.com> + + PR other/67457 + * mmap.c (backtrace_alloc): Correct test for mmap failure. + +2015-08-31 Ulrich Weigand <Ulrich.Weigand@de.ibm.com> + + * configure.ac: For spu-*-* targets, set have_fcntl to no. + * configure: Regenerate. + +2015-08-27 Ulrich Weigand <Ulrich.Weigand@de.ibm.com> + + * configure.ac: Remove [disable-shared] argument to LT_INIT. + Remove setting PIC_FLAG when building as target library. + * configure: Regenerate. + +2015-08-26 Hans-Peter Nilsson <hp@axis.com> + + * configure.ac: Only compile with -fPIC if the target + supports it. + * configure: Regenerate. + +2015-08-24 Ulrich Weigand <Ulrich.Weigand@de.ibm.com> + + * configure.ac: Set have_mmap to no on spu-*-* targets. + * configure: Regenerate. + +2015-08-13 Ian Lance Taylor <iant@google.com> + + * dwarf.c (read_function_entry): Add vec_inlined parameter. + Change all callers. + +2015-06-11 Martin Sebor <msebor@redhat.com> + + PR sanitizer/65479 + * dwarf.c (struct line): Add new field idx. + (line_compare): Use it. + (add_line): Set it. + (read_line_info): Reset it. + +2015-05-29 Tristan Gingold <gingold@adacore.com> + + * pecoff.c: New file. + * Makefile.am (FORMAT_FILES): Add pecoff.c and dependencies. + * Makefile.in: Regenerate. + * filetype.awk: Detect pecoff. + * configure.ac: Define BACKTRACE_SUPPORTS_DATA on elf platforms. + Add pecoff. + * btest.c (test5): Test enabled only if BACKTRACE_SUPPORTS_DATA is + true. + * backtrace-supported.h.in (BACKTRACE_SUPPORTS_DATA): Define. + * configure: Regenerate. + * pecoff.c: New file. + +2015-05-13 Michael Haubenwallner <michael.haubenwallner@ssi-schaefer.com> + + * Makefile.in: Regenerated with automake-1.11.6. + * aclocal.m4: Likewise. + * configure: Likewise. + +2015-01-24 Matthias Klose <doko@ubuntu.com> + + * configure.ac: Move AM_ENABLE_MULTILIB before AC_PROG_CC. + * configure: Regenerate. + +2015-01-05 Jakub Jelinek <jakub@redhat.com> + + Update copyright years. + +2014-11-21 H.J. Lu <hongjiu.lu@intel.com> + + PR bootstrap/63784 + * configure: Regenerated. + +2014-11-11 David Malcolm <dmalcolm@redhat.com> + + * ChangeLog.jit: New. + +2014-11-11 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org> + + PR target/63610 + * configure: Regenerate. + +2014-10-23 Ian Lance Taylor <iant@google.com> + + * internal.h (backtrace_atomic_load_pointer) [no atomic or sync]: + Fix to return void *. + +2014-05-08 Ian Lance Taylor <iant@google.com> + + * mmap.c (backtrace_free): If freeing a large aligned block of + memory, call munmap rather than holding onto it. + (backtrace_vector_grow): When growing a vector, double the number + of pages requested. When releasing the old version of a grown + vector, pass the correct size to backtrace_free. + +2014-03-07 Ian Lance Taylor <iant@google.com> + + * sort.c (backtrace_qsort): Use middle element as pivot. + +2014-03-06 Ian Lance Taylor <iant@google.com> + + * sort.c: New file. + * stest.c: New file. + * internal.h (backtrace_qsort): Declare. + * dwarf.c (read_abbrevs): Call backtrace_qsort instead of qsort. + (read_line_info, read_function_entry): Likewise. + (read_function_info, build_dwarf_data): Likewise. + * elf.c (elf_initialize_syminfo): Likewise. + * Makefile.am (libbacktrace_la_SOURCES): Add sort.c. + (stest_SOURCES, stest_LDADD): Define. + (check_PROGRAMS): Add stest. + +2014-02-07 Misty De Meo <misty@brew.sh> + + PR target/58710 + * configure.ac: Use AC_LINK_IFELSE in check for + _Unwind_GetIPInfo. + * configure: Regenerate. + +2014-01-02 Richard Sandiford <rdsandiford@googlemail.com> + + Update copyright years + +2013-12-06 Jakub Jelinek <jakub@redhat.com> + + * elf.c (ET_DYN): Undefine and define again. + (elf_add): Add exe argument, if true and ehdr.e_type is ET_DYN, + return early -1 without closing the descriptor. + (struct phdr_data): Add exe_descriptor. + (phdr_callback): If pd->exe_descriptor is not -1, for very first + call if dlpi_name is NULL just call elf_add with the exe_descriptor, + otherwise backtrace_close the exe_descriptor if not -1. Adjust + call to elf_add. + (backtrace_initialize): Adjust call to elf_add. If it returns + -1, set pd.exe_descriptor to descriptor, otherwise set it to -1. + +2013-12-05 Ian Lance Taylor <iant@google.com> + + * alloc.c (backtrace_vector_finish): Add error_callback and data + parameters. Call backtrace_vector_release. Return address base. + * mmap.c (backtrace_vector_finish): Add error_callback and data + parameters. Return address base. + * dwarf.c (read_function_info): Get new address base from + backtrace_vector_finish. + * internal.h (backtrace_vector_finish): Update declaration. + +2013-11-27 Ian Lance Taylor <iant@google.com> + + * dwarf.c (find_address_ranges): New static function, broken out + of build_address_map. + (build_address_map): Call it. + * btest.c (check): Check for missing filename or function, rather + than crashing. + (f3): Check that enough frames were returned. + +2013-11-19 Jakub Jelinek <jakub@redhat.com> + + * backtrace.h (backtrace_syminfo_callback): Add symsize argument. + * elf.c (elf_syminfo): Pass 0 or sym->size to the callback as + last argument. + * btest.c (struct symdata): Add size field. + (callback_three): Add symsize argument. Copy it to the data->size + field. + (f23): Set symdata.size to 0. + (test5): Likewise. If sizeof (int) > 1, lookup address of + ((uintptr_t) &global) + 1. Verify symdata.val and symdata.size + values. + + * atomic.c: Include sys/types.h. + +2013-11-18 Ian Lance Taylor <iant@google.com> + + * configure.ac: Check for support of __atomic extensions. + * internal.h: Declare or #define atomic functions for use in + backtrace code. + * atomic.c: New file. + * dwarf.c (dwarf_lookup_pc): Use atomic functions. + (dwarf_fileline, backtrace_dwarf_add): Likewise. + * elf.c (elf_add_syminfo_data, elf_syminfo): Likewise. + (backtrace_initialize): Likewise. + * fileline.c (fileline_initialize): Likewise. + * Makefile.am (libbacktrace_la_SOURCES): Add atomic.c. + * configure, config.h.in, Makefile.in: Rebuild. + +2013-11-18 Jakub Jelinek <jakub@redhat.com> + + * elf.c (SHN_UNDEF): Define. + (elf_initialize_syminfo): Add base_address argument. Ignore symbols + with st_shndx == SHN_UNDEF. Add base_address to address fields. + (elf_add): Adjust caller. + + * elf.c (phdr_callback): Process info->dlpi_addr == 0 normally. + +2013-11-16 Ian Lance Taylor <iant@google.com> + + * backtrace.h (backtrace_create_state): Correct comment about + threading. + +2013-11-15 Ian Lance Taylor <iant@google.com> + + * backtrace.h (backtrace_syminfo): Update comment and parameter + name to take any address, not just a PC value. + * elf.c (STT_OBJECT): Define. + (elf_nosyms): Rename parameter pc to addr. + (elf_symbol_search): Rename local variable pc to addr. + (elf_initialize_syminfo): Add STT_OBJECT symbols to elf_symbols. + (elf_syminfo): Rename parameter pc to addr. + * btest.c (global): New global variable. + (test5): New test. + (main): Call test5. + +2013-10-17 Ian Lance Taylor <iant@google.com> + + * elf.c (elf_add): Don't get the wrong offsets if a debug section + is missing. + +2013-10-15 David Malcolm <dmalcolm@redhat.com> + + * configure.ac: Add --enable-host-shared, setting up + pre-existing PIC_FLAG variable within Makefile.am et al. + * configure: Regenerate. + +2013-09-20 Alan Modra <amodra@gmail.com> + + * configure: Regenerate. + +2013-07-23 Alexander Monakov <amonakov@ispras.ru> + + * elf.c (elf_syminfo): Loop over the elf_syminfo_data chain. + +2013-07-23 Alexander Monakov <amonakov@ispras.ru> + + * elf.c (backtrace_initialize): Pass elf_fileline_fn to + dl_iterate_phdr callbacks. + +2013-03-25 Ian Lance Taylor <iant@google.com> + + * alloc.c: #include <sys/types.h>. + * mmap.c: Likewise. + +2013-01-31 Ian Lance Taylor <iant@google.com> + + * dwarf.c (read_function_info): Permit fvec parameter to be NULL. + (dwarf_lookup_pc): Don't use ddata->fvec if threaded. + +2013-01-25 Jakub Jelinek <jakub@redhat.com> + + PR other/56076 + * dwarf.c (read_line_header): Don't crash if DW_AT_comp_dir + attribute was not seen. + +2013-01-16 Ian Lance Taylor <iant@google.com> + + * dwarf.c (struct unit): Add filename and abs_filename fields. + (build_address_map): Set new fields when reading unit. + (dwarf_lookup_pc): If we don't find an entry in the line table, + just return the main file name. + +2013-01-14 Richard Sandiford <rdsandiford@googlemail.com> + + Update copyright years. + +2013-01-01 Ian Lance Taylor <iant@google.com> + + PR bootstrap/54834 + * Makefile.am (AM_CPPFLAGS): Remove -I ../gcc/include and -I + $(MULTIBUILDTOP)/../../gcc/include. + * Makefile.in: Rebuild. + +2013-01-01 Ian Lance Taylor <iant@google.com> + + PR other/55536 + * mmap.c (backtrace_alloc): Don't call sync functions if not + threaded. + (backtrace_free): Likewise. + +2012-12-12 John David Anglin <dave.anglin@nrc-cnrc.gc.ca> + + * mmapio.c: Define MAP_FAILED if not defined. + +2012-12-11 Jakub Jelinek <jakub@redhat.com> + + PR bootstrap/54926 + * Makefile.am (AM_CFLAGS): Remove -frandom-seed=$@. + * configure.ac: If --with-target-subdir, add -frandom-seed=$@ + to EXTRA_FLAGS unconditionally, otherwise check whether the compiler + accepts it. + * Makefile.in: Regenerated. + * configure: Regenerated. + +2012-12-07 Jakub Jelinek <jakub@redhat.com> + + PR bootstrap/54926 + * Makefile.am (AM_CFLAGS): Add -frandom-seed=$@. + * Makefile.in: Regenerated. + +2012-11-20 Ian Lance Taylor <iant@google.com> + + * dwarf.c (read_attribute): Always clear val. + +2012-11-13 Ian Lance Taylor <iant@google.com> + + PR other/55312 + * configure.ac: Only add -Werror if building a target library. + * configure: Rebuild. + +2012-11-12 Ian Lance Taylor <iant@google.com> + Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> + Gerald Pfeifer <gerald@pfeifer.com> + + * configure.ac: Check for getexecname. + * fileline.c: #include <errno.h>. Define getexecname if not + available. + (fileline_initialize): Try to find the executable in a few + different ways. + * print.c (error_callback): Only print the filename if it came + from the backtrace state. + * configure, config.h.in: Rebuild. + +2012-10-29 Ian Lance Taylor <iant@google.com> + + * mmap.c (backtrace_vector_release): Correct last patch: add + aligned, not size. + +2012-10-29 Ian Lance Taylor <iant@google.com> + + * mmap.c (backtrace_vector_release): Make sure freed block is + aligned on 8-byte boundary. + +2012-10-26 Ian Lance Taylor <iant@google.com> + + PR other/55087 + * posix.c (backtrace_open): Add does_not_exist parameter. + * elf.c (phdr_callback): Do not warn if shared library could not + be opened. + * fileline.c (fileline_initialize): Update calls to + backtrace_open. + * internal.h (backtrace_open): Update declaration. + +2012-10-26 Jack Howarth <howarth@bromo.med.uc.edu> + + PR target/55061 + * configure.ac: Check for _Unwind_GetIPInfo function declaration. + * configure: Regenerate. + +2012-10-24 Ian Lance Taylor <iant@google.com> + + PR target/55061 + * configure.ac: Check whether -funwind-tables option works. + * configure: Rebuild. + +2012-10-11 Ian Lance Taylor <iant@google.com> + + * configure.ac: Do not use dl_iterate_phdr on Solaris 10. + * configure: Rebuild. + +2012-10-10 Ian Lance Taylor <iant@google.com> + + * elf.c: Rename all Elf typedefs to start with b_elf, and be all + lower case. + +2012-10-10 Hans-Peter Nilsson <hp@bitrange.com> + + * elf.c (elf_add_syminfo_data): Add casts to avoid warning. + +2012-10-09 Ian Lance Taylor <iant@google.com> + + * dwarf.c (dwarf_fileline): Add cast to avoid warning. + (backtrace_dwarf_add): Likewise. + +2012-10-09 Ian Lance Taylor <iant@google.com> + + Add support for tracing through shared libraries. + * configure.ac: Check for link.h and dl_iterate_phdr. + * elf.c: #include <link.h> if system has dl_iterate_phdr. #undef + ELF macros before #defining them. + (dl_phdr_info, dl_iterate_phdr): Define if system does not have + dl_iterate_phdr. + (struct elf_syminfo_data): Add next field. + (elf_initialize_syminfo): Initialize next field. + (elf_add_syminfo_data): New static function. + (elf_add): New static function, broken out of + backtrace_initialize. Call backtrace_dwarf_add instead of + backtrace_dwarf_initialize. + (struct phdr_data): Define. + (phdr_callback): New static function. + (backtrace_initialize): Call elf_add. + * dwarf.c (struct dwarf_data): Add next and base_address fields. + (add_unit_addr): Add base_address parameter. Change all callers. + (add_unit_ranges, build_address_map): Likewise. + (add_line): Add ddata parameter. Change all callers. + (read_line_program, add_function_range): Likewise. + (dwarf_lookup_pc): New static function, broken out of + dwarf_fileline. + (dwarf_fileline): Call dwarf_lookup_pc. + (build_dwarf_data): New static function. + (backtrace_dwarf_add): New function. + (backtrace_dwarf_initialize): Remove. + * internal.h (backtrace_dwarf_initialize): Don't declare. + (backtrace_dwarf_add): Declare. + * configure, config.h.in: Rebuild. + +2012-10-04 Gerald Pfeifer <gerald@pfeifer.com> + + * btest.c (f23): Avoid uninitialized variable warning. + +2012-10-04 Ian Lance Taylor <iant@google.com> + + * dwarf.c: If the system header files do not declare strnlen, + provide our own version. + +2012-10-03 Ian Lance Taylor <iant@google.com> + + * dwarf.c (read_uleb128): Fix overflow test. + (read_sleb128): Likewise. + (build_address_map): Don't change unit_buf.start. + +2012-10-02 Uros Bizjak <ubizjak@gmail.com> + + PR other/54761 + * configure.ac (EXTRA_FLAGS): New. + * Makefile.am (AM_FLAGS): Add $(EXTRA_FLAGS). + * configure, Makefile.in: Regenerate. + +2012-09-29 Ian Lance Taylor <iant@google.com> + + PR other/54749 + * fileline.c (fileline_initialize): Pass errnum as -1 when + reporting that we could not read executable information after a + previous failure. + +2012-09-27 Ian Lance Taylor <iant@google.com> + + PR bootstrap/54732 + * configure.ac: Add no-dependencies to AM_INIT_AUTOMAKE. + * Makefile.am: Add dependencies for all objects. + * configure, aclocal.m4, Makefile.in: Rebuild. + +2012-09-27 Ian Lance Taylor <iant@google.com> + + PR other/54726 + * elf.c (backtrace_initialize): Set *fileln_fn, not + state->fileln_fn. + +2012-09-19 Ian Lance Taylor <iant@google.com> + + * configure.ac: Only use GCC_CHECK_UNWIND_GETIPINFO when compiled + as a target library. + * configure: Rebuild. + +2012-09-19 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> + Ian Lance Taylor <iant@google.com> + + * configure.ac (GCC_HEADER_STDINT): Invoke. + * backtrace.h: If we can't find <stdint.h>, use "gstdint.h". + * btest.c: Don't include <stdint.h>. + * dwarf.c: Likewise. + * configure, aclocal.m4, Makefile.in, config.h.in: Rebuild. + +2012-09-18 Ian Lance Taylor <iant@google.com> + + PR bootstrap/54623 + * Makefile.am (AM_CPPFLAGS): Define. + (AM_CFLAGS): Remove -I options. + * Makefile.in: Rebuild. + +2012-09-18 Ian Lance Taylor <iant@google.com> + + * posix.c (O_BINARY): Define if not defined. + (backtrace_open): Pass O_BINARY to open. Only call fcntl if + HAVE_FCNTL is defined. + * configure.ac: Test for the fcntl function. + * configure, config.h.in: Rebuild. + +2012-09-18 Ian Lance Taylor <iant@google.com> + + * btest.c (test1, test2, test3, test4): Add the unused attribute. + +2012-09-18 Ian Lance Taylor <iant@google.com> + + * dwarf.c: Correct test of HAVE_DECL_STRNLEN. + +2012-09-18 Ian Lance Taylor <iant@google.com> + + * configure.ac: Add AC_USE_SYSTEM_EXTENSIONS. + * mmapio.c: Don't define _GNU_SOURCE. + * configure, config.h.in: Rebuild. + +2012-09-18 Ian Lance Taylor <iant@google.com> + + * configure.ac: Check whether strnlen is declared. + * dwarf.c: Declare strnlen if not declared. + * configure, config.h.in: Rebuild. + +2012-09-18 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> + + * fileline.c: Include <stdlib.h>. + * mmap.c: Likewise. + +2012-09-17 Ian Lance Taylor <iant@google.com> + + PR bootstrap/54611 + * nounwind.c (backtrace_full): Rename from backtrace. Add state + parameter. + +2012-09-17 Gerald Pfeifer <gerald@pfeifer.com> + + PR bootstrap/54611 + * nounwind.c (backtrace_simple): Add state parameter. + +2012-09-17 Ian Lance Taylor <iant@google.com> + + PR bootstrap/54609 + * unknown.c (unknown_fileline): Add state parameter, remove + fileline_data parameter, name error_callback parameter. + (backtrace_initialize): Add state parameter. + +2012-09-17 Ian Lance Taylor <iant@google.com> + + * Initial implementation. + +Copyright (C) 2012-2021 Free Software Foundation, Inc. + +Copying and distribution of this file, with or without modification, +are permitted in any medium without royalty provided the copyright +notice and this notice are preserved. diff --git a/libbacktrace/ChangeLog.jit b/libbacktrace/ChangeLog.jit new file mode 100644 index 00000000000..6b60e3b3b07 --- /dev/null +++ b/libbacktrace/ChangeLog.jit @@ -0,0 +1,14 @@ +2014-09-24 David Malcolm <dmalcolm@redhat.com> + + * ChangeLog.jit: Add copyright footer. + +2013-10-03 David Malcolm <dmalcolm@redhat.com> + + * configure.ac: Add --enable-host-shared. + * configure: Regenerate. + +Copyright (C) 2013-2014 Free Software Foundation, Inc. + +Copying and distribution of this file, with or without modification, +are permitted in any medium without royalty provided the copyright +notice and this notice are preserved. diff --git a/libbacktrace/Makefile.am b/libbacktrace/Makefile.am new file mode 100644 index 00000000000..8874f41338a --- /dev/null +++ b/libbacktrace/Makefile.am @@ -0,0 +1,586 @@ +# Makefile.am -- Backtrace Makefile. +# Copyright (C) 2012-2021 Free Software Foundation, Inc. + +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: + +# (1) Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. + +# (2) Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. + +# (3) The name of the author may not be used to +# endorse or promote products derived from this software without +# specific prior written permission. + +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +# DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +ACLOCAL_AMFLAGS = -I .. -I ../config + +AM_CPPFLAGS = -I $(top_srcdir)/../include -I $(top_srcdir)/../libgcc \ + -I ../libgcc + +AM_CFLAGS = $(EXTRA_FLAGS) $(WARN_FLAGS) $(PIC_FLAG) $(CET_HOST_FLAGS) + +noinst_LTLIBRARIES = libbacktrace.la + +libbacktrace_la_SOURCES = \ + backtrace.h \ + atomic.c \ + dwarf.c \ + fileline.c \ + internal.h \ + posix.c \ + print.c \ + sort.c \ + state.c + +BACKTRACE_FILES = \ + backtrace.c \ + simple.c \ + nounwind.c + +FORMAT_FILES = \ + elf.c \ + macho.c \ + pecoff.c \ + unknown.c \ + xcoff.c + +VIEW_FILES = \ + read.c \ + mmapio.c + +ALLOC_FILES = \ + alloc.c \ + mmap.c + +EXTRA_libbacktrace_la_SOURCES = \ + $(BACKTRACE_FILES) \ + $(FORMAT_FILES) \ + $(VIEW_FILES) \ + $(ALLOC_FILES) + +libbacktrace_la_LIBADD = \ + $(BACKTRACE_FILE) \ + $(FORMAT_FILE) \ + $(VIEW_FILE) \ + $(ALLOC_FILE) + +libbacktrace_la_DEPENDENCIES = $(libbacktrace_la_LIBADD) + +# Testsuite. + +# Add a test to this variable if you want it to be built. +check_PROGRAMS = + +# Add a test to this variable if you want it to be run. +TESTS = + +# Add a test to this variable if you want it to be built and run. +BUILDTESTS = + +# Add a file to this variable if you want it to be built for testing. +check_DATA = + +# Flags to use when compiling test programs. +libbacktrace_TEST_CFLAGS = $(EXTRA_FLAGS) $(WARN_FLAGS) -g + +if USE_DSYMUTIL + +%.dSYM: % + $(DSYMUTIL) $< + +endif USE_DSYMUTIL + +if NATIVE +check_LTLIBRARIES = libbacktrace_alloc.la + +libbacktrace_alloc_la_SOURCES = $(libbacktrace_la_SOURCES) +libbacktrace_alloc_la_LIBADD = $(BACKTRACE_FILE) $(FORMAT_FILE) read.lo alloc.lo + +libbacktrace_alloc_la_DEPENDENCIES = $(libbacktrace_alloc_la_LIBADD) + +check_LTLIBRARIES += libbacktrace_noformat.la + +libbacktrace_noformat_la_SOURCES = $(libbacktrace_la_SOURCES) +libbacktrace_noformat_la_LIBADD = $(BACKTRACE_FILE) $(VIEW_FILE) $(ALLOC_FILE) + +libbacktrace_noformat_la_DEPENDENCIES = $(libbacktrace_noformat_la_LIBADD) + +if HAVE_ELF +if HAVE_OBJCOPY_DEBUGLINK + +TEST_BUILD_ID_DIR=$(abs_builddir)/usr/lib/debug/.build-id/ + +check_LTLIBRARIES += libbacktrace_elf_for_test.la + +libbacktrace_elf_for_test_la_SOURCES = $(libbacktrace_la_SOURCES) +libbacktrace_elf_for_test_la_LIBADD = $(BACKTRACE_FILE) elf_for_test.lo \ + $(VIEW_FILE) $(ALLOC_FILE) + +elf_for_test.c: elf.c + SEARCH='^#define SYSTEM_BUILD_ID_DIR.*$$'; \ + REPLACE="#define SYSTEM_BUILD_ID_DIR \"$(TEST_BUILD_ID_DIR)\""; \ + $(SED) "s%$$SEARCH%$$REPLACE%" \ + $< \ + > $@.tmp + mv $@.tmp $@ + +endif HAVE_OBJCOPY_DEBUGLINK +endif HAVE_ELF + +elf_%.c: elf.c + SEARCH='#error "Unknown BACKTRACE_ELF_SIZE"'; \ + REPLACE='#undef BACKTRACE_ELF_SIZE\ + #define BACKTRACE_ELF_SIZE'; \ + $(SED) "s/^$$SEARCH\$$/$$REPLACE $*/" \ + $< \ + > $@.tmp + mv $@.tmp $@ + +xcoff_%.c: xcoff.c + SEARCH='#error "Unknown BACKTRACE_XCOFF_SIZE"'; \ + REPLACE='#undef BACKTRACE_XCOFF_SIZE\ + #define BACKTRACE_XCOFF_SIZE'; \ + $(SED) "s/^$$SEARCH\$$/$$REPLACE $*/" \ + $< \ + > $@.tmp + mv $@.tmp $@ + +test_elf_32_SOURCES = test_format.c testlib.c +test_elf_32_CFLAGS = $(libbacktrace_TEST_CFLAGS) +test_elf_32_LDADD = libbacktrace_noformat.la elf_32.lo + +BUILDTESTS += test_elf_32 + +test_elf_64_SOURCES = test_format.c testlib.c +test_elf_64_CFLAGS = $(libbacktrace_TEST_CFLAGS) +test_elf_64_LDADD = libbacktrace_noformat.la elf_64.lo + +BUILDTESTS += test_elf_64 + +test_macho_SOURCES = test_format.c testlib.c +test_macho_CFLAGS = $(libbacktrace_TEST_CFLAGS) +test_macho_LDADD = libbacktrace_noformat.la macho.lo + +BUILDTESTS += test_macho + +test_xcoff_32_SOURCES = test_format.c testlib.c +test_xcoff_32_CFLAGS = $(libbacktrace_TEST_CFLAGS) +test_xcoff_32_LDADD = libbacktrace_noformat.la xcoff_32.lo + +BUILDTESTS += test_xcoff_32 + +test_xcoff_64_SOURCES = test_format.c testlib.c +test_xcoff_64_CFLAGS = $(libbacktrace_TEST_CFLAGS) +test_xcoff_64_LDADD = libbacktrace_noformat.la xcoff_64.lo + +BUILDTESTS += test_xcoff_64 + +test_pecoff_SOURCES = test_format.c testlib.c +test_pecoff_CFLAGS = $(libbacktrace_TEST_CFLAGS) +test_pecoff_LDADD = libbacktrace_noformat.la pecoff.lo + +BUILDTESTS += test_pecoff + +test_unknown_SOURCES = test_format.c testlib.c +test_unknown_CFLAGS = $(libbacktrace_TEST_CFLAGS) +test_unknown_LDADD = libbacktrace_noformat.la unknown.lo + +BUILDTESTS += test_unknown + +unittest_SOURCES = unittest.c testlib.c +unittest_CFLAGS = $(libbacktrace_TEST_CFLAGS) +unittest_LDADD = libbacktrace.la + +BUILDTESTS += unittest + +unittest_alloc_SOURCES = $(unittest_SOURCES) +unittest_alloc_CFLAGS = $(libbacktrace_TEST_CFLAGS) +unittest_alloc_LDADD = libbacktrace_alloc.la + +BUILDTESTS += unittest_alloc + +check_LTLIBRARIES += libbacktrace_instrumented_alloc.la + +libbacktrace_instrumented_alloc_la_SOURCES = $(libbacktrace_la_SOURCES) +libbacktrace_instrumented_alloc_la_LIBADD = $(BACKTRACE_FILE) $(FORMAT_FILE) \ + read.lo instrumented_alloc.lo + +libbacktrace_instrumented_alloc_la_DEPENDENCIES = \ + $(libbacktrace_instrumented_alloc_la_LIBADD) + +instrumented_alloc.lo: alloc.c + +allocfail_SOURCES = allocfail.c testlib.c +allocfail_CFLAGS = $(libbacktrace_TEST_CFLAGS) +allocfail_LDADD = libbacktrace_instrumented_alloc.la + +check_PROGRAMS += allocfail + +allocfail.sh: allocfail + +TESTS += allocfail.sh + +if USE_DSYMUTIL +check_DATA += allocfail.dSYM +endif USE_DSYMUTIL + +if HAVE_ELF +if HAVE_OBJCOPY_DEBUGLINK + +b2test_SOURCES = $(btest_SOURCES) +b2test_CFLAGS = $(libbacktrace_TEST_CFLAGS) +b2test_LDFLAGS = -Wl,--build-id +b2test_LDADD = libbacktrace_elf_for_test.la + +check_PROGRAMS += b2test +TESTS += b2test_buildid + +if HAVE_DWZ + +b3test_SOURCES = $(btest_SOURCES) +b3test_CFLAGS = $(libbacktrace_TEST_CFLAGS) +b3test_LDFLAGS = -Wl,--build-id +b3test_LDADD = libbacktrace_elf_for_test.la + +check_PROGRAMS += b3test +TESTS += b3test_dwz_buildid + +endif HAVE_DWZ + +endif HAVE_OBJCOPY_DEBUGLINK +endif HAVE_ELF + +btest_SOURCES = btest.c testlib.c +btest_CFLAGS = $(libbacktrace_TEST_CFLAGS) -O +btest_LDADD = libbacktrace.la + +BUILDTESTS += btest + +if USE_DSYMUTIL +check_DATA += btest.dSYM +endif USE_DSYMUTIL + +if HAVE_ELF + +btest_lto_SOURCES = btest.c testlib.c +btest_lto_CFLAGS = $(libbacktrace_TEST_CFLAGS) -O -flto +btest_lto_LDADD = libbacktrace.la + +BUILDTESTS += btest_lto + +endif HAVE_ELF + +btest_alloc_SOURCES = $(btest_SOURCES) +btest_alloc_CFLAGS = $(libbacktrace_TEST_CFLAGS) +btest_alloc_LDADD = libbacktrace_alloc.la + +BUILDTESTS += btest_alloc + +if USE_DSYMUTIL +check_DATA += btest_alloc.dSYM +endif USE_DSYMUTIL + +if HAVE_DWZ + +%_dwz: % + rm -f $@ $@_common.debug + cp $< $@_1 + cp $< $@_2 + if $(DWZ) -m $@_common.debug $@_1 $@_2; then \ + rm -f $@_2; \ + mv $@_1 $@; \ + else \ + echo "Ignoring dwz errors, assuming that test passes"; \ + cp $< $@; \ + fi + +TESTS += btest_dwz + +if HAVE_OBJCOPY_DEBUGLINK + +TESTS += btest_dwz_gnudebuglink + +endif HAVE_OBJCOPY_DEBUGLINK + +endif HAVE_DWZ + +stest_SOURCES = stest.c +stest_CFLAGS = $(libbacktrace_TEST_CFLAGS) +stest_LDADD = libbacktrace.la + +BUILDTESTS += stest + +if USE_DSYMUTIL +check_DATA += stest.dSYM +endif USE_DSYMUTIL + +stest_alloc_SOURCES = $(stest_SOURCES) +stest_alloc_CFLAGS = $(libbacktrace_TEST_CFLAGS) +stest_alloc_LDADD = libbacktrace_alloc.la + +BUILDTESTS += stest_alloc + +if USE_DSYMUTIL +check_DATA += stest_alloc.dSYM +endif USE_DSYMUTIL + +if HAVE_ELF + +ztest_SOURCES = ztest.c testlib.c +ztest_CFLAGS = $(libbacktrace_TEST_CFLAGS) -DSRCDIR=\"$(srcdir)\" +ztest_LDADD = libbacktrace.la +ztest_alloc_LDADD = libbacktrace_alloc.la + +if HAVE_ZLIB +ztest_LDADD += -lz +ztest_alloc_LDADD += -lz +endif +ztest_LDADD += $(CLOCK_GETTIME_LINK) +ztest_alloc_LDADD += $(CLOCK_GETTIME_LINK) + +BUILDTESTS += ztest + +ztest_alloc_SOURCES = $(ztest_SOURCES) +ztest_alloc_CFLAGS = $(ztest_CFLAGS) + +BUILDTESTS += ztest_alloc + +endif HAVE_ELF + +edtest_SOURCES = edtest.c edtest2_build.c testlib.c +edtest_CFLAGS = $(libbacktrace_TEST_CFLAGS) +edtest_LDADD = libbacktrace.la + +BUILDTESTS += edtest + +if USE_DSYMUTIL +check_DATA += edtest.dSYM +endif USE_DSYMUTIL + +edtest_alloc_SOURCES = $(edtest_SOURCES) +edtest_alloc_CFLAGS = $(libbacktrace_TEST_CFLAGS) +edtest_alloc_LDADD = libbacktrace_alloc.la + +if USE_DSYMUTIL +check_DATA += edtest_alloc.dSYM +endif USE_DSYMUTIL + +BUILDTESTS += edtest_alloc + +edtest2_build.c: gen_edtest2_build; @true +gen_edtest2_build: $(srcdir)/edtest2.c + cat $(srcdir)/edtest2.c > tmp-edtest2_build.c + $(SHELL) $(srcdir)/../move-if-change tmp-edtest2_build.c edtest2_build.c + echo timestamp > $@ + +if HAVE_PTHREAD + +BUILDTESTS += ttest + +ttest_SOURCES = ttest.c testlib.c +ttest_CFLAGS = $(libbacktrace_TEST_CFLAGS) -pthread +ttest_LDADD = libbacktrace.la + +if USE_DSYMUTIL +check_DATA += ttest.dSYM +endif USE_DSYMUTIL + +BUILDTESTS += ttest_alloc + +ttest_alloc_SOURCES = $(ttest_SOURCES) +ttest_alloc_CFLAGS = $(ttest_CFLAGS) +ttest_alloc_LDADD = libbacktrace_alloc.la + +if USE_DSYMUTIL +check_DATA += ttest_alloc.dSYM +endif USE_DSYMUTIL + +endif HAVE_PTHREAD + +if HAVE_OBJCOPY_DEBUGLINK + +TESTS += btest_gnudebuglink + +%_gnudebuglink: % + $(OBJCOPY) --only-keep-debug $< $@.debug + $(OBJCOPY) --strip-debug --add-gnu-debuglink=$@.debug $< $@ + +endif HAVE_OBJCOPY_DEBUGLINK + +%_buildid: % + ./install-debuginfo-for-buildid.sh \ + "$(TEST_BUILD_ID_DIR)" \ + $< + $(OBJCOPY) --strip-debug $< $@ + +if HAVE_COMPRESSED_DEBUG + +ctestg_SOURCES = btest.c testlib.c +ctestg_CFLAGS = $(libbacktrace_TEST_CFLAGS) +ctestg_LDFLAGS = -Wl,--compress-debug-sections=zlib-gnu +ctestg_LDADD = libbacktrace.la + +ctesta_SOURCES = btest.c testlib.c +ctesta_CFLAGS = $(libbacktrace_TEST_CFLAGS) +ctesta_LDFLAGS = -Wl,--compress-debug-sections=zlib-gabi +ctesta_LDADD = libbacktrace.la + +BUILDTESTS += ctestg ctesta + +ctestg_alloc_SOURCES = $(ctestg_SOURCES) +ctestg_alloc_CFLAGS = $(ctestg_CFLAGS) +ctestg_alloc_LDFLAGS = $(ctestg_LDFLAGS) +ctestg_alloc_LDADD = libbacktrace_alloc.la + +ctesta_alloc_SOURCES = $(ctesta_SOURCES) +ctesta_alloc_CFLAGS = $(ctesta_CFLAGS) +ctesta_alloc_LDFLAGS = $(ctesta_LDFLAGS) +ctesta_alloc_LDADD = libbacktrace_alloc.la + +BUILDTESTS += ctestg_alloc ctesta_alloc + +endif + +if HAVE_DWARF5 + +dwarf5_SOURCES = btest.c testlib.c +dwarf5_CFLAGS = $(libbacktrace_TEST_CFLAGS) -gdwarf-5 +dwarf5_LDADD = libbacktrace.la + +BUILDTESTS += dwarf5 + +if USE_DSYMUTIL +check_DATA += dwarf5.dSYM +endif USE_DSYMUTIL + +dwarf5_alloc_SOURCES = $(dwarf5_SOURCES) +dwarf5_alloc_CFLAGS = $(dwarf5_CFLAGS) +dwarf5_alloc_LDADD = libbacktrace_alloc.la + +BUILDTESTS += dwarf5_alloc + +if USE_DSYMUTIL +check_DATA += dwarf5_alloc.dSYM +endif USE_DSYMUTIL + +endif + +mtest_SOURCES = mtest.c testlib.c +mtest_CFLAGS = $(libbacktrace_TEST_CFLAGS) -O +mtest_LDADD = libbacktrace.la + +BUILDTESTS += mtest + +if USE_DSYMUTIL +check_DATA += mtest.dSYM +endif USE_DSYMUTIL + +if HAVE_MINIDEBUG + +TESTS += mtest_minidebug + +%_minidebug: % + $(NM) -D $< -P --defined-only | $(AWK) '{ print $$1 }' | sort > $<.dsyms + $(NM) $< -P --defined-only | $(AWK) '{ if ($$2 == "T" || $$2 == "t" || $$2 == "D") print $$1 }' | sort > $<.fsyms + $(COMM) -13 $<.dsyms $<.fsyms > $<.keepsyms + $(OBJCOPY) --only-keep-debug $< $<.dbg + $(OBJCOPY) -S --remove-section .gdb_index --remove-section .comment --keep-symbols=$<.keepsyms $<.dbg $<.mdbg + $(OBJCOPY) --strip-all --remove-section ..comment $< $<.strip + rm -f $<.mdbg.xz + $(XZ) $<.mdbg + $(OBJCOPY) --add-section .gnu_debugdata=$<.mdbg.xz $<.strip + mv $<.strip $@ + +endif HAVE_MINIDEBUG + +endif NATIVE + +if HAVE_ELF + +xztest_SOURCES = xztest.c testlib.c +xztest_CFLAGS = $(libbacktrace_TEST_CFLAGS) -DSRCDIR=\"$(srcdir)\" +xztest_LDADD = libbacktrace.la + +xztest_alloc_SOURCES = $(xztest_SOURCES) +xztest_alloc_CFLAGS = $(xztest_CFLAGS) +xztest_alloc_LDADD = libbacktrace_alloc.la + +if HAVE_LIBLZMA +xztest_LDADD += -llzma +xztest_alloc_LDADD += -llzma +endif + +xztest_LDADD += $(CLOCK_GETTIME_LINK) +xztest_alloc_LDADD += $(CLOCK_GETTIME_LINK) + +BUILDTESTS += xztest xztest_alloc + +endif HAVE_ELF + +check_PROGRAMS += $(BUILDTESTS) + +TESTS += $(BUILDTESTS) + +CLEANFILES = \ + $(TESTS) *.debug elf_for_test.c edtest2_build.c gen_edtest2_build \ + *.dsyms *.fsyms *.keepsyms *.dbg *.mdbg *.mdbg.xz *.strip + +clean-local: + -rm -rf usr + +# We can't use automake's automatic dependency tracking, because it +# breaks when using bootstrap-lean. Automatic dependency tracking +# with GCC bootstrap will cause some of the objects to depend on +# header files in prev-gcc/include, e.g., stddef.h and stdarg.h. When +# using bootstrap-lean, prev-gcc is removed after each stage. When +# running "make install", those header files will be gone, causing the +# library to be rebuilt at install time. That may not succeed. + +# These manual dependencies do not include dependencies on unwind.h, +# even though that is part of GCC, because where to find it depends on +# whether we are being built as a host library or a target library. + +INCDIR = $(top_srcdir)/../include +alloc.lo: config.h backtrace.h internal.h +backtrace.lo: config.h backtrace.h internal.h +btest.lo: $(INCDIR)/filenames.h backtrace.h backtrace-supported.h +dwarf.lo: config.h $(INCDIR)/dwarf2.h $(INCDIR)/dwarf2.def \ + $(INCDIR)/filenames.h backtrace.h internal.h +elf.lo: config.h backtrace.h internal.h +fileline.lo: config.h backtrace.h internal.h +macho.lo: config.h backtrace.h internal.h +mmap.lo: config.h backtrace.h internal.h +mmapio.lo: config.h backtrace.h internal.h +mtest.lo: backtrace.h backtrace-supported.h +nounwind.lo: config.h internal.h +pecoff.lo: config.h backtrace.h internal.h +posix.lo: config.h backtrace.h internal.h +print.lo: config.h backtrace.h internal.h +read.lo: config.h backtrace.h internal.h +simple.lo: config.h backtrace.h internal.h +sort.lo: config.h backtrace.h internal.h +stest.lo: config.h backtrace.h internal.h +state.lo: config.h backtrace.h backtrace-supported.h internal.h +unknown.lo: config.h backtrace.h internal.h +xcoff.lo: config.h backtrace.h internal.h +xztest.lo: config.h backtrace.h backtrace-supported.h internal.h testlib.h +ztest.lo: config.h backtrace.h backtrace-supported.h internal.h testlib.h + +include $(top_srcdir)/../multilib.am diff --git a/libbacktrace/Makefile.in b/libbacktrace/Makefile.in new file mode 100644 index 00000000000..2ba8dfa8428 --- /dev/null +++ b/libbacktrace/Makefile.in @@ -0,0 +1,2528 @@ +# Makefile.in generated by automake 1.15.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2017 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# Makefile.am -- Backtrace Makefile. +# Copyright (C) 2012-2021 Free Software Foundation, Inc. + +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: + +# (1) Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. + +# (2) Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. + +# (3) The name of the author may not be used to +# endorse or promote products derived from this software without +# specific prior written permission. + +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +# DISCLAIMED. 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+abs_top_builddir = @abs_top_builddir@ +abs_top_srcdir = @abs_top_srcdir@ +ac_ct_CC = @ac_ct_CC@ +ac_ct_DUMPBIN = @ac_ct_DUMPBIN@ +am__leading_dot = @am__leading_dot@ +am__tar = @am__tar@ +am__untar = @am__untar@ +bindir = @bindir@ +build = @build@ +build_alias = @build_alias@ +build_cpu = @build_cpu@ +build_os = @build_os@ +build_vendor = @build_vendor@ +builddir = @builddir@ +datadir = @datadir@ +datarootdir = @datarootdir@ +docdir = @docdir@ +dvidir = @dvidir@ +exec_prefix = @exec_prefix@ +host = @host@ +host_alias = @host_alias@ +host_cpu = @host_cpu@ +host_os = @host_os@ +host_vendor = @host_vendor@ +htmldir = @htmldir@ +includedir = @includedir@ +infodir = @infodir@ +install_sh = @install_sh@ +libdir = @libdir@ +libexecdir = @libexecdir@ +libtool_VERSION = @libtool_VERSION@ +localedir = @localedir@ +localstatedir = @localstatedir@ +mandir = @mandir@ +mkdir_p = @mkdir_p@ +multi_basedir = @multi_basedir@ +oldincludedir = @oldincludedir@ +pdfdir = @pdfdir@ +prefix = @prefix@ +program_transform_name = @program_transform_name@ +psdir = @psdir@ +sbindir = @sbindir@ +sharedstatedir = @sharedstatedir@ +srcdir = @srcdir@ +sysconfdir = @sysconfdir@ +target = @target@ +target_alias = @target_alias@ +target_cpu = @target_cpu@ +target_os = @target_os@ +target_vendor = @target_vendor@ +top_build_prefix = @top_build_prefix@ +top_builddir = @top_builddir@ +top_srcdir = @top_srcdir@ +ACLOCAL_AMFLAGS = -I .. -I ../config +AM_CPPFLAGS = -I $(top_srcdir)/../include -I $(top_srcdir)/../libgcc \ + -I ../libgcc + +AM_CFLAGS = $(EXTRA_FLAGS) $(WARN_FLAGS) $(PIC_FLAG) $(CET_HOST_FLAGS) +noinst_LTLIBRARIES = libbacktrace.la +libbacktrace_la_SOURCES = \ + backtrace.h \ + atomic.c \ + dwarf.c \ + fileline.c \ + internal.h \ + posix.c \ + print.c \ + sort.c \ + state.c + +BACKTRACE_FILES = \ + backtrace.c \ + simple.c \ + nounwind.c + +FORMAT_FILES = \ + elf.c \ + macho.c \ + pecoff.c \ + unknown.c \ + xcoff.c + +VIEW_FILES = \ + read.c \ + mmapio.c + +ALLOC_FILES = \ + alloc.c \ + mmap.c + +EXTRA_libbacktrace_la_SOURCES = \ + $(BACKTRACE_FILES) \ + $(FORMAT_FILES) \ + $(VIEW_FILES) \ + $(ALLOC_FILES) + +libbacktrace_la_LIBADD = \ + $(BACKTRACE_FILE) \ + $(FORMAT_FILE) \ + $(VIEW_FILE) \ + $(ALLOC_FILE) + +libbacktrace_la_DEPENDENCIES = $(libbacktrace_la_LIBADD) + +# Add a test to this variable if you want it to be built and run. +BUILDTESTS = $(am__append_2) $(am__append_10) $(am__append_11) \ + $(am__append_16) $(am__append_17) $(am__append_18) \ + $(am__append_21) $(am__append_22) $(am__append_24) \ + $(am__append_29) + +# Add a file to this variable if you want it to be built for testing. +check_DATA = $(am__append_5) $(am__append_19) $(am__append_23) \ + $(am__append_25) + +# Flags to use when compiling test programs. +libbacktrace_TEST_CFLAGS = $(EXTRA_FLAGS) $(WARN_FLAGS) -g +@NATIVE_TRUE@check_LTLIBRARIES = libbacktrace_alloc.la \ +@NATIVE_TRUE@ libbacktrace_noformat.la $(am__append_1) \ +@NATIVE_TRUE@ libbacktrace_instrumented_alloc.la +@NATIVE_TRUE@libbacktrace_alloc_la_SOURCES = $(libbacktrace_la_SOURCES) +@NATIVE_TRUE@libbacktrace_alloc_la_LIBADD = $(BACKTRACE_FILE) $(FORMAT_FILE) read.lo alloc.lo +@NATIVE_TRUE@libbacktrace_alloc_la_DEPENDENCIES = $(libbacktrace_alloc_la_LIBADD) +@NATIVE_TRUE@libbacktrace_noformat_la_SOURCES = $(libbacktrace_la_SOURCES) +@NATIVE_TRUE@libbacktrace_noformat_la_LIBADD = $(BACKTRACE_FILE) $(VIEW_FILE) $(ALLOC_FILE) +@NATIVE_TRUE@libbacktrace_noformat_la_DEPENDENCIES = $(libbacktrace_noformat_la_LIBADD) +@HAVE_ELF_TRUE@@HAVE_OBJCOPY_DEBUGLINK_TRUE@@NATIVE_TRUE@TEST_BUILD_ID_DIR = $(abs_builddir)/usr/lib/debug/.build-id/ +@HAVE_ELF_TRUE@@HAVE_OBJCOPY_DEBUGLINK_TRUE@@NATIVE_TRUE@libbacktrace_elf_for_test_la_SOURCES = $(libbacktrace_la_SOURCES) +@HAVE_ELF_TRUE@@HAVE_OBJCOPY_DEBUGLINK_TRUE@@NATIVE_TRUE@libbacktrace_elf_for_test_la_LIBADD = $(BACKTRACE_FILE) elf_for_test.lo \ +@HAVE_ELF_TRUE@@HAVE_OBJCOPY_DEBUGLINK_TRUE@@NATIVE_TRUE@ $(VIEW_FILE) $(ALLOC_FILE) + +@NATIVE_TRUE@test_elf_32_SOURCES = test_format.c testlib.c +@NATIVE_TRUE@test_elf_32_CFLAGS = $(libbacktrace_TEST_CFLAGS) +@NATIVE_TRUE@test_elf_32_LDADD = libbacktrace_noformat.la elf_32.lo +@NATIVE_TRUE@test_elf_64_SOURCES = test_format.c testlib.c +@NATIVE_TRUE@test_elf_64_CFLAGS = $(libbacktrace_TEST_CFLAGS) +@NATIVE_TRUE@test_elf_64_LDADD = libbacktrace_noformat.la elf_64.lo +@NATIVE_TRUE@test_macho_SOURCES = test_format.c testlib.c +@NATIVE_TRUE@test_macho_CFLAGS = $(libbacktrace_TEST_CFLAGS) +@NATIVE_TRUE@test_macho_LDADD = libbacktrace_noformat.la macho.lo +@NATIVE_TRUE@test_xcoff_32_SOURCES = test_format.c testlib.c +@NATIVE_TRUE@test_xcoff_32_CFLAGS = $(libbacktrace_TEST_CFLAGS) +@NATIVE_TRUE@test_xcoff_32_LDADD = libbacktrace_noformat.la xcoff_32.lo +@NATIVE_TRUE@test_xcoff_64_SOURCES = test_format.c testlib.c +@NATIVE_TRUE@test_xcoff_64_CFLAGS = $(libbacktrace_TEST_CFLAGS) +@NATIVE_TRUE@test_xcoff_64_LDADD = libbacktrace_noformat.la xcoff_64.lo +@NATIVE_TRUE@test_pecoff_SOURCES = test_format.c testlib.c +@NATIVE_TRUE@test_pecoff_CFLAGS = $(libbacktrace_TEST_CFLAGS) +@NATIVE_TRUE@test_pecoff_LDADD = libbacktrace_noformat.la pecoff.lo +@NATIVE_TRUE@test_unknown_SOURCES = test_format.c testlib.c +@NATIVE_TRUE@test_unknown_CFLAGS = $(libbacktrace_TEST_CFLAGS) +@NATIVE_TRUE@test_unknown_LDADD = libbacktrace_noformat.la unknown.lo +@NATIVE_TRUE@unittest_SOURCES = unittest.c testlib.c +@NATIVE_TRUE@unittest_CFLAGS = $(libbacktrace_TEST_CFLAGS) +@NATIVE_TRUE@unittest_LDADD = libbacktrace.la +@NATIVE_TRUE@unittest_alloc_SOURCES = $(unittest_SOURCES) +@NATIVE_TRUE@unittest_alloc_CFLAGS = $(libbacktrace_TEST_CFLAGS) +@NATIVE_TRUE@unittest_alloc_LDADD = libbacktrace_alloc.la +@NATIVE_TRUE@libbacktrace_instrumented_alloc_la_SOURCES = $(libbacktrace_la_SOURCES) +@NATIVE_TRUE@libbacktrace_instrumented_alloc_la_LIBADD = $(BACKTRACE_FILE) $(FORMAT_FILE) \ +@NATIVE_TRUE@ read.lo instrumented_alloc.lo + +@NATIVE_TRUE@libbacktrace_instrumented_alloc_la_DEPENDENCIES = \ +@NATIVE_TRUE@ $(libbacktrace_instrumented_alloc_la_LIBADD) + +@NATIVE_TRUE@allocfail_SOURCES = allocfail.c testlib.c +@NATIVE_TRUE@allocfail_CFLAGS = $(libbacktrace_TEST_CFLAGS) +@NATIVE_TRUE@allocfail_LDADD = libbacktrace_instrumented_alloc.la +@HAVE_ELF_TRUE@@HAVE_OBJCOPY_DEBUGLINK_TRUE@@NATIVE_TRUE@b2test_SOURCES = $(btest_SOURCES) +@HAVE_ELF_TRUE@@HAVE_OBJCOPY_DEBUGLINK_TRUE@@NATIVE_TRUE@b2test_CFLAGS = $(libbacktrace_TEST_CFLAGS) +@HAVE_ELF_TRUE@@HAVE_OBJCOPY_DEBUGLINK_TRUE@@NATIVE_TRUE@b2test_LDFLAGS = -Wl,--build-id +@HAVE_ELF_TRUE@@HAVE_OBJCOPY_DEBUGLINK_TRUE@@NATIVE_TRUE@b2test_LDADD = libbacktrace_elf_for_test.la +@HAVE_DWZ_TRUE@@HAVE_ELF_TRUE@@HAVE_OBJCOPY_DEBUGLINK_TRUE@@NATIVE_TRUE@b3test_SOURCES = $(btest_SOURCES) +@HAVE_DWZ_TRUE@@HAVE_ELF_TRUE@@HAVE_OBJCOPY_DEBUGLINK_TRUE@@NATIVE_TRUE@b3test_CFLAGS = $(libbacktrace_TEST_CFLAGS) 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$(libbacktrace_TEST_CFLAGS) +@NATIVE_TRUE@stest_alloc_LDADD = libbacktrace_alloc.la +@HAVE_ELF_TRUE@@NATIVE_TRUE@ztest_SOURCES = ztest.c testlib.c +@HAVE_ELF_TRUE@@NATIVE_TRUE@ztest_CFLAGS = $(libbacktrace_TEST_CFLAGS) -DSRCDIR=\"$(srcdir)\" +@HAVE_ELF_TRUE@@NATIVE_TRUE@ztest_LDADD = libbacktrace.la \ +@HAVE_ELF_TRUE@@NATIVE_TRUE@ $(am__append_14) \ +@HAVE_ELF_TRUE@@NATIVE_TRUE@ $(CLOCK_GETTIME_LINK) +@HAVE_ELF_TRUE@@NATIVE_TRUE@ztest_alloc_LDADD = libbacktrace_alloc.la \ +@HAVE_ELF_TRUE@@NATIVE_TRUE@ $(am__append_15) \ +@HAVE_ELF_TRUE@@NATIVE_TRUE@ $(CLOCK_GETTIME_LINK) +@HAVE_ELF_TRUE@@NATIVE_TRUE@ztest_alloc_SOURCES = $(ztest_SOURCES) +@HAVE_ELF_TRUE@@NATIVE_TRUE@ztest_alloc_CFLAGS = $(ztest_CFLAGS) +@NATIVE_TRUE@edtest_SOURCES = edtest.c edtest2_build.c testlib.c +@NATIVE_TRUE@edtest_CFLAGS = $(libbacktrace_TEST_CFLAGS) +@NATIVE_TRUE@edtest_LDADD = libbacktrace.la +@NATIVE_TRUE@edtest_alloc_SOURCES = $(edtest_SOURCES) +@NATIVE_TRUE@edtest_alloc_CFLAGS = $(libbacktrace_TEST_CFLAGS) +@NATIVE_TRUE@edtest_alloc_LDADD = libbacktrace_alloc.la +@HAVE_PTHREAD_TRUE@@NATIVE_TRUE@ttest_SOURCES = ttest.c testlib.c +@HAVE_PTHREAD_TRUE@@NATIVE_TRUE@ttest_CFLAGS = $(libbacktrace_TEST_CFLAGS) -pthread +@HAVE_PTHREAD_TRUE@@NATIVE_TRUE@ttest_LDADD = libbacktrace.la +@HAVE_PTHREAD_TRUE@@NATIVE_TRUE@ttest_alloc_SOURCES = $(ttest_SOURCES) +@HAVE_PTHREAD_TRUE@@NATIVE_TRUE@ttest_alloc_CFLAGS = $(ttest_CFLAGS) +@HAVE_PTHREAD_TRUE@@NATIVE_TRUE@ttest_alloc_LDADD = libbacktrace_alloc.la +@HAVE_COMPRESSED_DEBUG_TRUE@@NATIVE_TRUE@ctestg_SOURCES = btest.c testlib.c +@HAVE_COMPRESSED_DEBUG_TRUE@@NATIVE_TRUE@ctestg_CFLAGS = $(libbacktrace_TEST_CFLAGS) +@HAVE_COMPRESSED_DEBUG_TRUE@@NATIVE_TRUE@ctestg_LDFLAGS = -Wl,--compress-debug-sections=zlib-gnu +@HAVE_COMPRESSED_DEBUG_TRUE@@NATIVE_TRUE@ctestg_LDADD = libbacktrace.la +@HAVE_COMPRESSED_DEBUG_TRUE@@NATIVE_TRUE@ctesta_SOURCES = btest.c testlib.c +@HAVE_COMPRESSED_DEBUG_TRUE@@NATIVE_TRUE@ctesta_CFLAGS = $(libbacktrace_TEST_CFLAGS) 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Automatic dependency tracking +# with GCC bootstrap will cause some of the objects to depend on +# header files in prev-gcc/include, e.g., stddef.h and stdarg.h. When +# using bootstrap-lean, prev-gcc is removed after each stage. When +# running "make install", those header files will be gone, causing the +# library to be rebuilt at install time. That may not succeed. + +# These manual dependencies do not include dependencies on unwind.h, +# even though that is part of GCC, because where to find it depends on +# whether we are being built as a host library or a target library. +INCDIR = $(top_srcdir)/../include +MULTISRCTOP = +MULTIBUILDTOP = +MULTIDIRS = +MULTISUBDIR = +MULTIDO = true +MULTICLEAN = true +all: config.h + $(MAKE) $(AM_MAKEFLAGS) all-am + +.SUFFIXES: +.SUFFIXES: .c .lo .log .o .obj .test .test$(EXEEXT) .trs +am--refresh: Makefile + @: +$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(top_srcdir)/../multilib.am $(am__configure_deps) + @for dep in $?; do \ + case '$(am__configure_deps)' in \ + *$$dep*) \ + echo ' cd $(srcdir) && $(AUTOMAKE) --foreign --ignore-deps'; \ + $(am__cd) $(srcdir) && $(AUTOMAKE) --foreign --ignore-deps \ + && exit 0; \ + exit 1;; \ + esac; \ + done; \ + echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign --ignore-deps Makefile'; \ + $(am__cd) $(top_srcdir) && \ + $(AUTOMAKE) --foreign --ignore-deps Makefile +Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status + @case '$?' in \ + *config.status*) \ + echo ' $(SHELL) ./config.status'; \ + $(SHELL) ./config.status;; \ + *) \ + echo ' cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe)'; \ + cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe);; \ + esac; +$(top_srcdir)/../multilib.am $(am__empty): + +$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES) + $(SHELL) ./config.status --recheck + +$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps) + $(am__cd) $(srcdir) && $(AUTOCONF) +$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps) + $(am__cd) $(srcdir) && $(ACLOCAL) $(ACLOCAL_AMFLAGS) +$(am__aclocal_m4_deps): + +config.h: stamp-h1 + @test -f $@ || rm -f stamp-h1 + @test -f $@ || $(MAKE) $(AM_MAKEFLAGS) stamp-h1 + +stamp-h1: $(srcdir)/config.h.in $(top_builddir)/config.status + @rm -f 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We just wanted to have am__tar + # and am__untar set. + test -n "${am_cv_prog_tar_$1}" && break + + # tar/untar a dummy directory, and stop if the command works. + rm -rf conftest.dir + mkdir conftest.dir + echo GrepMe > conftest.dir/file + AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) + rm -rf conftest.dir + if test -s conftest.tar; then + AM_RUN_LOG([$am__untar <conftest.tar]) + AM_RUN_LOG([cat conftest.dir/file]) + grep GrepMe conftest.dir/file >/dev/null 2>&1 && break + fi + done + rm -rf conftest.dir + + AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) + AC_MSG_RESULT([$am_cv_prog_tar_$1])]) + +AC_SUBST([am__tar]) +AC_SUBST([am__untar]) +]) # _AM_PROG_TAR + +m4_include([../config/cet.m4]) +m4_include([../config/enable.m4]) +m4_include([../config/lead-dot.m4]) +m4_include([../config/multi.m4]) +m4_include([../config/override.m4]) +m4_include([../config/stdint.m4]) +m4_include([../config/unwind_ipinfo.m4]) +m4_include([../config/warnings.m4]) +m4_include([../libtool.m4]) +m4_include([../ltoptions.m4]) +m4_include([../ltsugar.m4]) +m4_include([../ltversion.m4]) +m4_include([../lt~obsolete.m4]) diff --git a/libbacktrace/alloc.c b/libbacktrace/alloc.c new file mode 100644 index 00000000000..ff2c8677c06 --- /dev/null +++ b/libbacktrace/alloc.c @@ -0,0 +1,167 @@ +/* alloc.c -- Memory allocation without mmap. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <errno.h> +#include <stdlib.h> +#include <sys/types.h> + +#include "backtrace.h" +#include "internal.h" + +/* Allocation routines to use on systems that do not support anonymous + mmap. This implementation just uses malloc, which means that the + backtrace functions may not be safely invoked from a signal + handler. */ + +/* Allocate memory like malloc. If ERROR_CALLBACK is NULL, don't + report an error. */ + +void * +backtrace_alloc (struct backtrace_state *state ATTRIBUTE_UNUSED, + size_t size, backtrace_error_callback error_callback, + void *data) +{ + void *ret; + + ret = malloc (size); + if (ret == NULL) + { + if (error_callback) + error_callback (data, "malloc", errno); + } + return ret; +} + +/* Free memory. */ + +void +backtrace_free (struct backtrace_state *state ATTRIBUTE_UNUSED, + void *p, size_t size ATTRIBUTE_UNUSED, + backtrace_error_callback error_callback ATTRIBUTE_UNUSED, + void *data ATTRIBUTE_UNUSED) +{ + free (p); +} + +/* Grow VEC by SIZE bytes. */ + +void * +backtrace_vector_grow (struct backtrace_state *state ATTRIBUTE_UNUSED, + size_t size, backtrace_error_callback error_callback, + void *data, struct backtrace_vector *vec) +{ + void *ret; + + if (size > vec->alc) + { + size_t alc; + void *base; + + if (vec->size == 0) + alc = 32 * size; + else if (vec->size >= 4096) + alc = vec->size + 4096; + else + alc = 2 * vec->size; + + if (alc < vec->size + size) + alc = vec->size + size; + + base = realloc (vec->base, alc); + if (base == NULL) + { + error_callback (data, "realloc", errno); + return NULL; + } + + vec->base = base; + vec->alc = alc - vec->size; + } + + ret = (char *) vec->base + vec->size; + vec->size += size; + vec->alc -= size; + return ret; +} + +/* Finish the current allocation on VEC. */ + +void * +backtrace_vector_finish (struct backtrace_state *state, + struct backtrace_vector *vec, + backtrace_error_callback error_callback, + void *data) +{ + void *ret; + + /* With this allocator we call realloc in backtrace_vector_grow, + which means we can't easily reuse the memory here. So just + release it. */ + if (!backtrace_vector_release (state, vec, error_callback, data)) + return NULL; + ret = vec->base; + vec->base = NULL; + vec->size = 0; + vec->alc = 0; + return ret; +} + +/* Release any extra space allocated for VEC. */ + +int +backtrace_vector_release (struct backtrace_state *state ATTRIBUTE_UNUSED, + struct backtrace_vector *vec, + backtrace_error_callback error_callback, + void *data) +{ + vec->alc = 0; + + if (vec->size == 0) + { + /* As of C17, realloc with size 0 is marked as an obsolescent feature, use + free instead. */ + free (vec->base); + vec->base = NULL; + return 1; + } + + vec->base = realloc (vec->base, vec->size); + if (vec->base == NULL) + { + error_callback (data, "realloc", errno); + return 0; + } + + return 1; +} diff --git a/libbacktrace/allocfail.c b/libbacktrace/allocfail.c new file mode 100644 index 00000000000..bd0fbb658a9 --- /dev/null +++ b/libbacktrace/allocfail.c @@ -0,0 +1,136 @@ +/* allocfail.c -- Test for libbacktrace library + Copyright (C) 2018-2021 Free Software Foundation, Inc. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "filenames.h" + +#include "backtrace.h" +#include "backtrace-supported.h" + +#include "testlib.h" + +extern uint64_t get_nr_allocs (void); +extern void set_fail_at_alloc (uint64_t); +extern int at_fail_alloc_p (void); + +static int test1 (void) __attribute__ ((noinline, unused)); +static int f2 (int) __attribute__ ((noinline)); +static int f3 (int, int) __attribute__ ((noinline)); + +static unsigned callback_errors = 0; + +static void +error_callback_full (void *vdata ATTRIBUTE_UNUSED, + const char *msg ATTRIBUTE_UNUSED, + int errnum ATTRIBUTE_UNUSED) +{ + if (at_fail_alloc_p ()) + { + set_fail_at_alloc (0); + return; + } + + callback_errors++; +} + +static int +callback_full (void *vdata ATTRIBUTE_UNUSED, uintptr_t pc ATTRIBUTE_UNUSED, + const char *filename ATTRIBUTE_UNUSED, + int lineno ATTRIBUTE_UNUSED, + const char *function ATTRIBUTE_UNUSED) +{ + + return 0; +} + +static int +test1 (void) +{ + return f2 (__LINE__) + 1; +} + +static int +f2 (int f1line) +{ + return f3 (f1line, __LINE__) + 2; +} + +static int +f3 (int f1line ATTRIBUTE_UNUSED, int f2line ATTRIBUTE_UNUSED) +{ + int i; + + i = backtrace_full (state, 0, callback_full, error_callback_full, NULL); + + if (i != 0) + { + fprintf (stderr, "test1: unexpected return value %d\n", i); + ++failures; + } + + if (callback_errors) + ++failures; + + return failures; +} + +/* Run all the tests. */ + +int +main (int argc, char **argv) +{ + uint64_t fail_at = 0; + + if (argc == 2) + { + fail_at = atoi (argv[1]); + set_fail_at_alloc (fail_at); + } + + state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS, + error_callback_full, NULL); + if (state == NULL) + exit (failures ? EXIT_FAILURE : EXIT_SUCCESS); + +#if BACKTRACE_SUPPORTED + test1 (); +#endif + + if (argc == 1) + fprintf (stderr, "%llu\n", (long long unsigned) get_nr_allocs ()); + + exit (failures ? EXIT_FAILURE : EXIT_SUCCESS); +} diff --git a/libbacktrace/allocfail.sh b/libbacktrace/allocfail.sh new file mode 100755 index 00000000000..1f9894fd2e8 --- /dev/null +++ b/libbacktrace/allocfail.sh @@ -0,0 +1,104 @@ +#!/bin/sh + +# allocfail.sh -- Test for libbacktrace library. +# Copyright (C) 2018-2021 Free Software Foundation, Inc. + +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: + +# (1) Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. + +# (2) Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. + +# (3) The name of the author may not be used to +# endorse or promote products derived from this software without +# specific prior written permission. + +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +# DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +set -e + +if [ ! -f ./allocfail ]; then + # Hard failure. + exit 99 +fi + +allocs=$(./allocfail 2>&1) +if [ "$allocs" = "" ]; then + # Hard failure. + exit 99 +fi + +# This generates the following output: +# ... +# $ allocfail.sh +# allocs: 80495 +# Status changed to 0 at 1 +# Status changed to 1 at 3 +# Status changed to 0 at 11 +# Status changed to 1 at 12 +# Status changed to 0 at 845 +# ... +# +# We have status 0 for an allocation failure at: +# - 1 because backtrace_create_state handles failure robustly +# - 2 because the fail switches backtrace_full to !can_alloc mode. +# - 11 because failure of elf_open_debugfile_by_buildid does not generate an +# error callback beyond the one for the allocation failure itself. + +echo "allocs: $allocs" + +step=1 +i=1 +passes=0 +prev_status=-1 +while [ $i -le $allocs ]; do + if ./allocfail $i >/dev/null 2>&1; status=$?; then + true + fi + if [ $status -gt 1 ]; then + echo "Unallowed fail found: $i" + # Failure. + exit 1 + fi + + # The test-case would run too long if we would excercise all allocs. + # So, run with step 1 initially, and increase the step once we have 10 + # subsequent passes, and drop back to step 1 once we encounter another + # failure. This takes ~2.6 seconds on an i7-6600U CPU @ 2.60GHz. + if [ $status -eq 0 ]; then + passes=$(($passes + 1)) + if [ $passes -ge 10 ]; then + step=$((step * 10)) + passes=0 + fi + elif [ $status -eq 1 ]; then + passes=0 + step=1 + fi + + if [ $status -ne $prev_status ]; then + echo "Status changed to $status at $i" + fi + prev_status=$status + + i=$(($i + $step)) +done + +# Success. +exit 0 diff --git a/libbacktrace/atomic.c b/libbacktrace/atomic.c new file mode 100644 index 00000000000..fcac485b237 --- /dev/null +++ b/libbacktrace/atomic.c @@ -0,0 +1,113 @@ +/* atomic.c -- Support for atomic functions if not present. + Copyright (C) 2013-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <sys/types.h> + +#include "backtrace.h" +#include "backtrace-supported.h" +#include "internal.h" + +/* This file holds implementations of the atomic functions that are + used if the host compiler has the sync functions but not the atomic + functions, as is true of versions of GCC before 4.7. */ + +#if !defined (HAVE_ATOMIC_FUNCTIONS) && defined (HAVE_SYNC_FUNCTIONS) + +/* Do an atomic load of a pointer. */ + +void * +backtrace_atomic_load_pointer (void *arg) +{ + void **pp; + void *p; + + pp = (void **) arg; + p = *pp; + while (!__sync_bool_compare_and_swap (pp, p, p)) + p = *pp; + return p; +} + +/* Do an atomic load of an int. */ + +int +backtrace_atomic_load_int (int *p) +{ + int i; + + i = *p; + while (!__sync_bool_compare_and_swap (p, i, i)) + i = *p; + return i; +} + +/* Do an atomic store of a pointer. */ + +void +backtrace_atomic_store_pointer (void *arg, void *p) +{ + void **pp; + void *old; + + pp = (void **) arg; + old = *pp; + while (!__sync_bool_compare_and_swap (pp, old, p)) + old = *pp; +} + +/* Do an atomic store of a size_t value. */ + +void +backtrace_atomic_store_size_t (size_t *p, size_t v) +{ + size_t old; + + old = *p; + while (!__sync_bool_compare_and_swap (p, old, v)) + old = *p; +} + +/* Do an atomic store of a int value. */ + +void +backtrace_atomic_store_int (int *p, int v) +{ + size_t old; + + old = *p; + while (!__sync_bool_compare_and_swap (p, old, v)) + old = *p; +} + +#endif diff --git a/libbacktrace/backtrace-supported.h.in b/libbacktrace/backtrace-supported.h.in new file mode 100644 index 00000000000..2035c853a62 --- /dev/null +++ b/libbacktrace/backtrace-supported.h.in @@ -0,0 +1,66 @@ +/* backtrace-supported.h.in -- Whether stack backtrace is supported. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +/* The file backtrace-supported.h.in is used by configure to generate + the file backtrace-supported.h. The file backtrace-supported.h may + be #include'd to see whether the backtrace library will be able to + get a backtrace and produce symbolic information. */ + + +/* BACKTRACE_SUPPORTED will be #define'd as 1 if the backtrace library + should work, 0 if it will not. Libraries may #include this to make + other arrangements. */ + +#define BACKTRACE_SUPPORTED @BACKTRACE_SUPPORTED@ + +/* BACKTRACE_USES_MALLOC will be #define'd as 1 if the backtrace + library will call malloc as it works, 0 if it will call mmap + instead. This may be used to determine whether it is safe to call + the backtrace functions from a signal handler. In general this + only applies to calls like backtrace and backtrace_pcinfo. It does + not apply to backtrace_simple, which never calls malloc. It does + not apply to backtrace_print, which always calls fprintf and + therefore malloc. */ + +#define BACKTRACE_USES_MALLOC @BACKTRACE_USES_MALLOC@ + +/* BACKTRACE_SUPPORTS_THREADS will be #define'd as 1 if the backtrace + library is configured with threading support, 0 if not. If this is + 0, the threaded parameter to backtrace_create_state must be passed + as 0. */ + +#define BACKTRACE_SUPPORTS_THREADS @BACKTRACE_SUPPORTS_THREADS@ + +/* BACKTRACE_SUPPORTS_DATA will be #defined'd as 1 if the backtrace_syminfo + will work for variables. It will always work for functions. */ + +#define BACKTRACE_SUPPORTS_DATA @BACKTRACE_SUPPORTS_DATA@ diff --git a/libbacktrace/backtrace.c b/libbacktrace/backtrace.c new file mode 100644 index 00000000000..7b629008525 --- /dev/null +++ b/libbacktrace/backtrace.c @@ -0,0 +1,129 @@ +/* backtrace.c -- Entry point for stack backtrace library. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <sys/types.h> + +#include "unwind.h" +#include "backtrace.h" +#include "internal.h" + +/* The main backtrace_full routine. */ + +/* Data passed through _Unwind_Backtrace. */ + +struct backtrace_data +{ + /* Number of frames to skip. */ + int skip; + /* Library state. */ + struct backtrace_state *state; + /* Callback routine. */ + backtrace_full_callback callback; + /* Error callback routine. */ + backtrace_error_callback error_callback; + /* Data to pass to callback routines. */ + void *data; + /* Value to return from backtrace_full. */ + int ret; + /* Whether there is any memory available. */ + int can_alloc; +}; + +/* Unwind library callback routine. This is passed to + _Unwind_Backtrace. */ + +static _Unwind_Reason_Code +unwind (struct _Unwind_Context *context, void *vdata) +{ + struct backtrace_data *bdata = (struct backtrace_data *) vdata; + uintptr_t pc; + int ip_before_insn = 0; + +#ifdef HAVE_GETIPINFO + pc = _Unwind_GetIPInfo (context, &ip_before_insn); +#else + pc = _Unwind_GetIP (context); +#endif + + if (bdata->skip > 0) + { + --bdata->skip; + return _URC_NO_REASON; + } + + if (!ip_before_insn) + --pc; + + if (!bdata->can_alloc) + bdata->ret = bdata->callback (bdata->data, pc, NULL, 0, NULL); + else + bdata->ret = backtrace_pcinfo (bdata->state, pc, bdata->callback, + bdata->error_callback, bdata->data); + if (bdata->ret != 0) + return _URC_END_OF_STACK; + + return _URC_NO_REASON; +} + +/* Get a stack backtrace. */ + +int __attribute__((noinline)) +backtrace_full (struct backtrace_state *state, int skip, + backtrace_full_callback callback, + backtrace_error_callback error_callback, void *data) +{ + struct backtrace_data bdata; + void *p; + + bdata.skip = skip + 1; + bdata.state = state; + bdata.callback = callback; + bdata.error_callback = error_callback; + bdata.data = data; + bdata.ret = 0; + + /* If we can't allocate any memory at all, don't try to produce + file/line information. */ + p = backtrace_alloc (state, 4096, NULL, NULL); + if (p == NULL) + bdata.can_alloc = 0; + else + { + backtrace_free (state, p, 4096, NULL, NULL); + bdata.can_alloc = 1; + } + + _Unwind_Backtrace (unwind, &bdata); + return bdata.ret; +} diff --git a/libbacktrace/backtrace.h b/libbacktrace/backtrace.h new file mode 100644 index 00000000000..caaa66d3686 --- /dev/null +++ b/libbacktrace/backtrace.h @@ -0,0 +1,206 @@ +/* backtrace.h -- Public header file for stack backtrace library. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#ifndef BACKTRACE_H +#define BACKTRACE_H + +#include <stddef.h> +#include <stdio.h> + +/* We want to get a definition for uintptr_t, but we still care about + systems that don't have <stdint.h>. */ +#if defined(__GLIBC__) && __GLIBC__ >= 2 + +#include <stdint.h> + +#elif defined(HAVE_STDINT_H) + +#include <stdint.h> + +#else + +/* Systems that don't have <stdint.h> must provide gstdint.h, e.g., + from GCC_HEADER_STDINT in configure.ac. */ +#include "gstdint.h" + +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/* The backtrace state. This struct is intentionally not defined in + the public interface. */ + +struct backtrace_state; + +/* The type of the error callback argument to backtrace functions. + This function, if not NULL, will be called for certain error cases. + The DATA argument is passed to the function that calls this one. + The MSG argument is an error message. The ERRNUM argument, if + greater than 0, holds an errno value. The MSG buffer may become + invalid after this function returns. + + As a special case, the ERRNUM argument will be passed as -1 if no + debug info can be found for the executable, or if the debug info + exists but has an unsupported version, but the function requires + debug info (e.g., backtrace_full, backtrace_pcinfo). The MSG in + this case will be something along the lines of "no debug info". + Similarly, ERRNUM will be passed as -1 if there is no symbol table, + but the function requires a symbol table (e.g., backtrace_syminfo). + This may be used as a signal that some other approach should be + tried. */ + +typedef void (*backtrace_error_callback) (void *data, const char *msg, + int errnum); + +/* Create state information for the backtrace routines. This must be + called before any of the other routines, and its return value must + be passed to all of the other routines. FILENAME is the path name + of the executable file; if it is NULL the library will try + system-specific path names. If not NULL, FILENAME must point to a + permanent buffer. If THREADED is non-zero the state may be + accessed by multiple threads simultaneously, and the library will + use appropriate atomic operations. If THREADED is zero the state + may only be accessed by one thread at a time. This returns a state + pointer on success, NULL on error. If an error occurs, this will + call the ERROR_CALLBACK routine. + + Calling this function allocates resources that cannot be freed. + There is no backtrace_free_state function. The state is used to + cache information that is expensive to recompute. Programs are + expected to call this function at most once and to save the return + value for all later calls to backtrace functions. */ + +extern struct backtrace_state *backtrace_create_state ( + const char *filename, int threaded, + backtrace_error_callback error_callback, void *data); + +/* The type of the callback argument to the backtrace_full function. + DATA is the argument passed to backtrace_full. PC is the program + counter. FILENAME is the name of the file containing PC, or NULL + if not available. LINENO is the line number in FILENAME containing + PC, or 0 if not available. FUNCTION is the name of the function + containing PC, or NULL if not available. This should return 0 to + continuing tracing. The FILENAME and FUNCTION buffers may become + invalid after this function returns. */ + +typedef int (*backtrace_full_callback) (void *data, uintptr_t pc, + const char *filename, int lineno, + const char *function); + +/* Get a full stack backtrace. SKIP is the number of frames to skip; + passing 0 will start the trace with the function calling + backtrace_full. DATA is passed to the callback routine. If any + call to CALLBACK returns a non-zero value, the stack backtrace + stops, and backtrace returns that value; this may be used to limit + the number of stack frames desired. If all calls to CALLBACK + return 0, backtrace returns 0. The backtrace_full function will + make at least one call to either CALLBACK or ERROR_CALLBACK. This + function requires debug info for the executable. */ + +extern int backtrace_full (struct backtrace_state *state, int skip, + backtrace_full_callback callback, + backtrace_error_callback error_callback, + void *data); + +/* The type of the callback argument to the backtrace_simple function. + DATA is the argument passed to simple_backtrace. PC is the program + counter. This should return 0 to continue tracing. */ + +typedef int (*backtrace_simple_callback) (void *data, uintptr_t pc); + +/* Get a simple backtrace. SKIP is the number of frames to skip, as + in backtrace. DATA is passed to the callback routine. If any call + to CALLBACK returns a non-zero value, the stack backtrace stops, + and backtrace_simple returns that value. Otherwise + backtrace_simple returns 0. The backtrace_simple function will + make at least one call to either CALLBACK or ERROR_CALLBACK. This + function does not require any debug info for the executable. */ + +extern int backtrace_simple (struct backtrace_state *state, int skip, + backtrace_simple_callback callback, + backtrace_error_callback error_callback, + void *data); + +/* Print the current backtrace in a user readable format to a FILE. + SKIP is the number of frames to skip, as in backtrace_full. Any + error messages are printed to stderr. This function requires debug + info for the executable. */ + +extern void backtrace_print (struct backtrace_state *state, int skip, FILE *); + +/* Given PC, a program counter in the current program, call the + callback function with filename, line number, and function name + information. This will normally call the callback function exactly + once. However, if the PC happens to describe an inlined call, and + the debugging information contains the necessary information, then + this may call the callback function multiple times. This will make + at least one call to either CALLBACK or ERROR_CALLBACK. This + returns the first non-zero value returned by CALLBACK, or 0. */ + +extern int backtrace_pcinfo (struct backtrace_state *state, uintptr_t pc, + backtrace_full_callback callback, + backtrace_error_callback error_callback, + void *data); + +/* The type of the callback argument to backtrace_syminfo. DATA and + PC are the arguments passed to backtrace_syminfo. SYMNAME is the + name of the symbol for the corresponding code. SYMVAL is the + value and SYMSIZE is the size of the symbol. SYMNAME will be NULL + if no error occurred but the symbol could not be found. */ + +typedef void (*backtrace_syminfo_callback) (void *data, uintptr_t pc, + const char *symname, + uintptr_t symval, + uintptr_t symsize); + +/* Given ADDR, an address or program counter in the current program, + call the callback information with the symbol name and value + describing the function or variable in which ADDR may be found. + This will call either CALLBACK or ERROR_CALLBACK exactly once. + This returns 1 on success, 0 on failure. This function requires + the symbol table but does not require the debug info. Note that if + the symbol table is present but ADDR could not be found in the + table, CALLBACK will be called with a NULL SYMNAME argument. + Returns 1 on success, 0 on error. */ + +extern int backtrace_syminfo (struct backtrace_state *state, uintptr_t addr, + backtrace_syminfo_callback callback, + backtrace_error_callback error_callback, + void *data); + +#ifdef __cplusplus +} /* End extern "C". */ +#endif + +#endif diff --git a/libbacktrace/btest.c b/libbacktrace/btest.c new file mode 100644 index 00000000000..9f9c03babf3 --- /dev/null +++ b/libbacktrace/btest.c @@ -0,0 +1,501 @@ +/* btest.c -- Test for libbacktrace library + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +/* This program tests the externally visible interfaces of the + libbacktrace library. */ + +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "filenames.h" + +#include "backtrace.h" +#include "backtrace-supported.h" + +#include "testlib.h" + +/* Test the backtrace function with non-inlined functions. */ + +static int test1 (void) __attribute__ ((noinline, noclone, unused)); +static int f2 (int) __attribute__ ((noinline, noclone)); +static int f3 (int, int) __attribute__ ((noinline, noclone)); + +static int +test1 (void) +{ + /* Returning a value here and elsewhere avoids a tailcall which + would mess up the backtrace. */ + return f2 (__LINE__) + 1; +} + +static int +f2 (int f1line) +{ + return f3 (f1line, __LINE__) + 2; +} + +static int +f3 (int f1line, int f2line) +{ + struct info all[20]; + struct bdata data; + int f3line; + int i; + + data.all = &all[0]; + data.index = 0; + data.max = 20; + data.failed = 0; + + f3line = __LINE__ + 1; + i = backtrace_full (state, 0, callback_one, error_callback_one, &data); + + if (i != 0) + { + fprintf (stderr, "test1: unexpected return value %d\n", i); + data.failed = 1; + } + + if (data.index < 3) + { + fprintf (stderr, + "test1: not enough frames; got %zu, expected at least 3\n", + data.index); + data.failed = 1; + } + + check ("test1", 0, all, f3line, "f3", "btest.c", &data.failed); + check ("test1", 1, all, f2line, "f2", "btest.c", &data.failed); + check ("test1", 2, all, f1line, "test1", "btest.c", &data.failed); + + printf ("%s: backtrace_full noinline\n", data.failed ? "FAIL" : "PASS"); + + if (data.failed) + ++failures; + + return failures; +} + +/* Test the backtrace function with inlined functions. */ + +static inline int test2 (void) __attribute__ ((always_inline, unused)); +static inline int f12 (int) __attribute__ ((always_inline)); +static inline int f13 (int, int) __attribute__ ((always_inline)); + +static inline int +test2 (void) +{ + return f12 (__LINE__) + 1; +} + +static inline int +f12 (int f1line) +{ + return f13 (f1line, __LINE__) + 2; +} + +static inline int +f13 (int f1line, int f2line) +{ + struct info all[20]; + struct bdata data; + int f3line; + int i; + + data.all = &all[0]; + data.index = 0; + data.max = 20; + data.failed = 0; + + f3line = __LINE__ + 1; + i = backtrace_full (state, 0, callback_one, error_callback_one, &data); + + if (i != 0) + { + fprintf (stderr, "test2: unexpected return value %d\n", i); + data.failed = 1; + } + + check ("test2", 0, all, f3line, "f13", "btest.c", &data.failed); + check ("test2", 1, all, f2line, "f12", "btest.c", &data.failed); + check ("test2", 2, all, f1line, "test2", "btest.c", &data.failed); + + printf ("%s: backtrace_full inline\n", data.failed ? "FAIL" : "PASS"); + + if (data.failed) + ++failures; + + return failures; +} + +/* Test the backtrace_simple function with non-inlined functions. */ + +static int test3 (void) __attribute__ ((noinline, noclone, unused)); +static int f22 (int) __attribute__ ((noinline, noclone)); +static int f23 (int, int) __attribute__ ((noinline, noclone)); + +static int +test3 (void) +{ + return f22 (__LINE__) + 1; +} + +static int +f22 (int f1line) +{ + return f23 (f1line, __LINE__) + 2; +} + +static int +f23 (int f1line, int f2line) +{ + uintptr_t addrs[20]; + struct sdata data; + int f3line; + int i; + + data.addrs = &addrs[0]; + data.index = 0; + data.max = 20; + data.failed = 0; + + f3line = __LINE__ + 1; + i = backtrace_simple (state, 0, callback_two, error_callback_two, &data); + + if (i != 0) + { + fprintf (stderr, "test3: unexpected return value %d\n", i); + data.failed = 1; + } + + if (!data.failed) + { + struct info all[20]; + struct bdata bdata; + int j; + + bdata.all = &all[0]; + bdata.index = 0; + bdata.max = 20; + bdata.failed = 0; + + for (j = 0; j < 3; ++j) + { + i = backtrace_pcinfo (state, addrs[j], callback_one, + error_callback_one, &bdata); + if (i != 0) + { + fprintf (stderr, + ("test3: unexpected return value " + "from backtrace_pcinfo %d\n"), + i); + bdata.failed = 1; + } + if (!bdata.failed && bdata.index != (size_t) (j + 1)) + { + fprintf (stderr, + ("wrong number of calls from backtrace_pcinfo " + "got %u expected %d\n"), + (unsigned int) bdata.index, j + 1); + bdata.failed = 1; + } + } + + check ("test3", 0, all, f3line, "f23", "btest.c", &bdata.failed); + check ("test3", 1, all, f2line, "f22", "btest.c", &bdata.failed); + check ("test3", 2, all, f1line, "test3", "btest.c", &bdata.failed); + + if (bdata.failed) + data.failed = 1; + + for (j = 0; j < 3; ++j) + { + struct symdata symdata; + + symdata.name = NULL; + symdata.val = 0; + symdata.size = 0; + symdata.failed = 0; + + i = backtrace_syminfo (state, addrs[j], callback_three, + error_callback_three, &symdata); + if (i == 0) + { + fprintf (stderr, + ("test3: [%d]: unexpected return value " + "from backtrace_syminfo %d\n"), + j, i); + symdata.failed = 1; + } + + if (!symdata.failed) + { + const char *expected; + + switch (j) + { + case 0: + expected = "f23"; + break; + case 1: + expected = "f22"; + break; + case 2: + expected = "test3"; + break; + default: + assert (0); + } + + if (symdata.name == NULL) + { + fprintf (stderr, "test3: [%d]: NULL syminfo name\n", j); + symdata.failed = 1; + } + /* Use strncmp, not strcmp, because GCC might create a + clone. */ + else if (strncmp (symdata.name, expected, strlen (expected)) + != 0) + { + fprintf (stderr, + ("test3: [%d]: unexpected syminfo name " + "got %s expected %s\n"), + j, symdata.name, expected); + symdata.failed = 1; + } + } + + if (symdata.failed) + data.failed = 1; + } + } + + printf ("%s: backtrace_simple noinline\n", data.failed ? "FAIL" : "PASS"); + + if (data.failed) + ++failures; + + return failures; +} + +/* Test the backtrace_simple function with inlined functions. */ + +static inline int test4 (void) __attribute__ ((always_inline, unused)); +static inline int f32 (int) __attribute__ ((always_inline)); +static inline int f33 (int, int) __attribute__ ((always_inline)); + +static inline int +test4 (void) +{ + return f32 (__LINE__) + 1; +} + +static inline int +f32 (int f1line) +{ + return f33 (f1line, __LINE__) + 2; +} + +static inline int +f33 (int f1line, int f2line) +{ + uintptr_t addrs[20]; + struct sdata data; + int f3line; + int i; + + data.addrs = &addrs[0]; + data.index = 0; + data.max = 20; + data.failed = 0; + + f3line = __LINE__ + 1; + i = backtrace_simple (state, 0, callback_two, error_callback_two, &data); + + if (i != 0) + { + fprintf (stderr, "test3: unexpected return value %d\n", i); + data.failed = 1; + } + + if (!data.failed) + { + struct info all[20]; + struct bdata bdata; + + bdata.all = &all[0]; + bdata.index = 0; + bdata.max = 20; + bdata.failed = 0; + + i = backtrace_pcinfo (state, addrs[0], callback_one, error_callback_one, + &bdata); + if (i != 0) + { + fprintf (stderr, + ("test4: unexpected return value " + "from backtrace_pcinfo %d\n"), + i); + bdata.failed = 1; + } + + check ("test4", 0, all, f3line, "f33", "btest.c", &bdata.failed); + check ("test4", 1, all, f2line, "f32", "btest.c", &bdata.failed); + check ("test4", 2, all, f1line, "test4", "btest.c", &bdata.failed); + + if (bdata.failed) + data.failed = 1; + } + + printf ("%s: backtrace_simple inline\n", data.failed ? "FAIL" : "PASS"); + + if (data.failed) + ++failures; + + return failures; +} + +static int test5 (void) __attribute__ ((unused)); + +int global = 1; + +static int +test5 (void) +{ + struct symdata symdata; + int i; + uintptr_t addr = (uintptr_t) &global; + + if (sizeof (global) > 1) + addr += 1; + + symdata.name = NULL; + symdata.val = 0; + symdata.size = 0; + symdata.failed = 0; + + i = backtrace_syminfo (state, addr, callback_three, + error_callback_three, &symdata); + if (i == 0) + { + fprintf (stderr, + "test5: unexpected return value from backtrace_syminfo %d\n", + i); + symdata.failed = 1; + } + + if (!symdata.failed) + { + if (symdata.name == NULL) + { + fprintf (stderr, "test5: NULL syminfo name\n"); + symdata.failed = 1; + } + else if (!(strncmp (symdata.name, "global", 6) == 0 + && (symdata.name[6] == '\0'|| symdata.name[6] == '.'))) + { + fprintf (stderr, + "test5: unexpected syminfo name got %s expected %s\n", + symdata.name, "global"); + symdata.failed = 1; + } + else if (symdata.val != (uintptr_t) &global) + { + fprintf (stderr, + "test5: unexpected syminfo value got %lx expected %lx\n", + (unsigned long) symdata.val, + (unsigned long) (uintptr_t) &global); + symdata.failed = 1; + } + else if (symdata.size != sizeof (global)) + { + fprintf (stderr, + "test5: unexpected syminfo size got %lx expected %lx\n", + (unsigned long) symdata.size, + (unsigned long) sizeof (global)); + symdata.failed = 1; + } + } + + printf ("%s: backtrace_syminfo variable\n", + symdata.failed ? "FAIL" : "PASS"); + + if (symdata.failed) + ++failures; + + return failures; +} + +/* Check that are no files left open. */ + +static void +check_open_files (void) +{ + int i; + + for (i = 3; i < 10; i++) + { + if (close (i) == 0) + { + fprintf (stderr, + "ERROR: descriptor %d still open after tests complete\n", + i); + ++failures; + } + } +} + +/* Run all the tests. */ + +int +main (int argc ATTRIBUTE_UNUSED, char **argv) +{ + state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS, + error_callback_create, NULL); + +#if BACKTRACE_SUPPORTED + test1 (); + test2 (); + test3 (); + test4 (); +#if BACKTRACE_SUPPORTS_DATA + test5 (); +#endif +#endif + + check_open_files (); + + exit (failures ? EXIT_FAILURE : EXIT_SUCCESS); +} diff --git a/libbacktrace/config.h.in b/libbacktrace/config.h.in new file mode 100644 index 00000000000..cdb416e6406 --- /dev/null +++ b/libbacktrace/config.h.in @@ -0,0 +1,184 @@ +/* config.h.in. Generated from configure.ac by autoheader. */ + +/* ELF size: 32 or 64 */ +#undef BACKTRACE_ELF_SIZE + +/* XCOFF size: 32 or 64 */ +#undef BACKTRACE_XCOFF_SIZE + +/* Define to 1 if you have the __atomic functions */ +#undef HAVE_ATOMIC_FUNCTIONS + +/* Define to 1 if you have the `clock_gettime' function. */ +#undef HAVE_CLOCK_GETTIME + +/* Define to 1 if you have the declaration of `getpagesize', and to 0 if you + don't. */ +#undef HAVE_DECL_GETPAGESIZE + +/* Define to 1 if you have the declaration of `strnlen', and to 0 if you + don't. */ +#undef HAVE_DECL_STRNLEN + +/* Define to 1 if you have the <dlfcn.h> header file. */ +#undef HAVE_DLFCN_H + +/* Define if dl_iterate_phdr is available. */ +#undef HAVE_DL_ITERATE_PHDR + +/* Define to 1 if you have the fcntl function */ +#undef HAVE_FCNTL + +/* Define if getexecname is available. */ +#undef HAVE_GETEXECNAME + +/* Define if _Unwind_GetIPInfo is available. */ +#undef HAVE_GETIPINFO + +/* Define to 1 if you have the <inttypes.h> header file. */ +#undef HAVE_INTTYPES_H + +/* Define to 1 if you have KERN_PROC and KERN_PROC_PATHNAME in <sys/sysctl.h>. + */ +#undef HAVE_KERN_PROC + +/* Define to 1 if you have KERN_PROCARGS and KERN_PROC_PATHNAME in + <sys/sysctl.h>. */ +#undef HAVE_KERN_PROC_ARGS + +/* Define if -llzma is available. */ +#undef HAVE_LIBLZMA + +/* Define to 1 if you have the <link.h> header file. */ +#undef HAVE_LINK_H + +/* Define if AIX loadquery is available. */ +#undef HAVE_LOADQUERY + +/* Define to 1 if you have the `lstat' function. */ +#undef HAVE_LSTAT + +/* Define to 1 if you have the <mach-o/dyld.h> header file. */ +#undef HAVE_MACH_O_DYLD_H + +/* Define to 1 if you have the <memory.h> header file. */ +#undef HAVE_MEMORY_H + +/* Define to 1 if you have the `readlink' function. */ +#undef HAVE_READLINK + +/* Define to 1 if you have the <stdint.h> header file. */ +#undef HAVE_STDINT_H + +/* Define to 1 if you have the <stdlib.h> header file. */ +#undef HAVE_STDLIB_H + +/* Define to 1 if you have the <strings.h> header file. */ +#undef HAVE_STRINGS_H + +/* Define to 1 if you have the <string.h> header file. */ +#undef HAVE_STRING_H + +/* Define to 1 if you have the __sync functions */ +#undef HAVE_SYNC_FUNCTIONS + +/* Define to 1 if you have the <sys/ldr.h> header file. */ +#undef HAVE_SYS_LDR_H + +/* Define to 1 if you have the <sys/mman.h> header file. */ +#undef HAVE_SYS_MMAN_H + +/* Define to 1 if you have the <sys/stat.h> header file. */ +#undef HAVE_SYS_STAT_H + +/* Define to 1 if you have the <sys/types.h> header file. */ +#undef HAVE_SYS_TYPES_H + +/* Define to 1 if you have the <unistd.h> header file. */ +#undef HAVE_UNISTD_H + +/* Define if -lz is available. */ +#undef HAVE_ZLIB + +/* Define to the sub-directory in which libtool stores uninstalled libraries. + */ +#undef LT_OBJDIR + +/* Define to the address where bug reports for this package should be sent. */ +#undef PACKAGE_BUGREPORT + +/* Define to the full name of this package. */ +#undef PACKAGE_NAME + +/* Define to the full name and version of this package. */ +#undef PACKAGE_STRING + +/* Define to the one symbol short name of this package. */ +#undef PACKAGE_TARNAME + +/* Define to the home page for this package. */ +#undef PACKAGE_URL + +/* Define to the version of this package. */ +#undef PACKAGE_VERSION + +/* The size of `char', as computed by sizeof. */ +#undef SIZEOF_CHAR + +/* The size of `int', as computed by sizeof. */ +#undef SIZEOF_INT + +/* The size of `long', as computed by sizeof. */ +#undef SIZEOF_LONG + +/* The size of `short', as computed by sizeof. */ +#undef SIZEOF_SHORT + +/* The size of `void *', as computed by sizeof. */ +#undef SIZEOF_VOID_P + +/* Define to 1 if you have the ANSI C header files. */ +#undef STDC_HEADERS + +/* Enable extensions on AIX 3, Interix. */ +#ifndef _ALL_SOURCE +# undef _ALL_SOURCE +#endif +/* Enable GNU extensions on systems that have them. */ +#ifndef _GNU_SOURCE +# undef _GNU_SOURCE +#endif +/* Enable threading extensions on Solaris. */ +#ifndef _POSIX_PTHREAD_SEMANTICS +# undef _POSIX_PTHREAD_SEMANTICS +#endif +/* Enable extensions on HP NonStop. */ +#ifndef _TANDEM_SOURCE +# undef _TANDEM_SOURCE +#endif +/* Enable general extensions on Solaris. */ +#ifndef __EXTENSIONS__ +# undef __EXTENSIONS__ +#endif + + +/* Enable large inode numbers on Mac OS X 10.5. */ +#ifndef _DARWIN_USE_64_BIT_INODE +# define _DARWIN_USE_64_BIT_INODE 1 +#endif + +/* Number of bits in a file offset, on hosts where this is settable. */ +#undef _FILE_OFFSET_BITS + +/* Define for large files, on AIX-style hosts. */ +#undef _LARGE_FILES + +/* Define to 1 if on MINIX. */ +#undef _MINIX + +/* Define to 2 if the system does not provide POSIX.1 features except with + this defined. */ +#undef _POSIX_1_SOURCE + +/* Define to 1 if you need to in order for `stat' and other things to work. */ +#undef _POSIX_SOURCE diff --git a/libbacktrace/configure b/libbacktrace/configure new file mode 100755 index 00000000000..a2f33c0f35d --- /dev/null +++ b/libbacktrace/configure @@ -0,0 +1,16893 @@ +#! /bin/sh +# Guess values for system-dependent variables and create Makefiles. +# Generated by GNU Autoconf 2.69 for package-unused version-unused. +# +# +# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc. +# +# +# This configure script is free software; the Free Software Foundation +# gives unlimited permission to copy, distribute and modify it. +## -------------------- ## +## M4sh Initialization. ## +## -------------------- ## + +# Be more Bourne compatible +DUALCASE=1; export DUALCASE # for MKS sh +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi + + +as_nl=' +' +export as_nl +# Printing a long string crashes Solaris 7 /usr/bin/printf. +as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo +# Prefer a ksh shell builtin over an external printf program on Solaris, +# but without wasting forks for bash or zsh. +if test -z "$BASH_VERSION$ZSH_VERSION" \ + && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='print -r --' + as_echo_n='print -rn --' +elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='printf %s\n' + as_echo_n='printf %s' +else + if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then + as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"' + as_echo_n='/usr/ucb/echo -n' + else + as_echo_body='eval expr "X$1" : "X\\(.*\\)"' + as_echo_n_body='eval + arg=$1; + case $arg in #( + *"$as_nl"*) + expr "X$arg" : "X\\(.*\\)$as_nl"; + arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;; + esac; + expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl" + ' + export as_echo_n_body + as_echo_n='sh -c $as_echo_n_body as_echo' + fi + export as_echo_body + as_echo='sh -c $as_echo_body as_echo' +fi + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + +# IFS +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent editors from complaining about space-tab. +# (If _AS_PATH_WALK were called with IFS unset, it would disable word +# splitting by setting IFS to empty value.) +IFS=" "" $as_nl" + +# Find who we are. Look in the path if we contain no directory separator. +as_myself= +case $0 in #(( + *[\\/]* ) as_myself=$0 ;; + *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break + done +IFS=$as_save_IFS + + ;; +esac +# We did not find ourselves, most probably we were run as `sh COMMAND' +# in which case we are not to be found in the path. +if test "x$as_myself" = x; then + as_myself=$0 +fi +if test ! -f "$as_myself"; then + $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 + exit 1 +fi + +# Unset variables that we do not need and which cause bugs (e.g. in +# pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1" +# suppresses any "Segmentation fault" message there. '((' could +# trigger a bug in pdksh 5.2.14. +for as_var in BASH_ENV ENV MAIL MAILPATH +do eval test x\${$as_var+set} = xset \ + && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || : +done +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +LC_ALL=C +export LC_ALL +LANGUAGE=C +export LANGUAGE + +# CDPATH. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +# Use a proper internal environment variable to ensure we don't fall + # into an infinite loop, continuously re-executing ourselves. + if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then + _as_can_reexec=no; export _as_can_reexec; + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed `exec'. +$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2 +as_fn_exit 255 + fi + # We don't want this to propagate to other subprocesses. + { _as_can_reexec=; unset _as_can_reexec;} +if test "x$CONFIG_SHELL" = x; then + as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which + # is contrary to our usage. Disable this feature. + alias -g '\${1+\"\$@\"}'='\"\$@\"' + setopt NO_GLOB_SUBST +else + case \`(set -o) 2>/dev/null\` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi +" + as_required="as_fn_return () { (exit \$1); } +as_fn_success () { as_fn_return 0; } +as_fn_failure () { as_fn_return 1; } +as_fn_ret_success () { return 0; } +as_fn_ret_failure () { return 1; } + +exitcode=0 +as_fn_success || { exitcode=1; echo as_fn_success failed.; } +as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; } +as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; } +as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; } +if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then : + +else + exitcode=1; echo positional parameters were not saved. +fi +test x\$exitcode = x0 || exit 1 +test -x / || exit 1" + as_suggested=" as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO + as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO + eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" && + test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1 +test \$(( 1 + 1 )) = 2 || exit 1 + + test -n \"\${ZSH_VERSION+set}\${BASH_VERSION+set}\" || ( + ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' + ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO + ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO + PATH=/empty FPATH=/empty; export PATH FPATH + test \"X\`printf %s \$ECHO\`\" = \"X\$ECHO\" \\ + || test \"X\`print -r -- \$ECHO\`\" = \"X\$ECHO\" ) || exit 1" + if (eval "$as_required") 2>/dev/null; then : + as_have_required=yes +else + as_have_required=no +fi + if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then : + +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +as_found=false +for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + as_found=: + case $as_dir in #( + /*) + for as_base in sh bash ksh sh5; do + # Try only shells that exist, to save several forks. + as_shell=$as_dir/$as_base + if { test -f "$as_shell" || test -f "$as_shell.exe"; } && + { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then : + CONFIG_SHELL=$as_shell as_have_required=yes + if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then : + break 2 +fi +fi + done;; + esac + as_found=false +done +$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } && + { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then : + CONFIG_SHELL=$SHELL as_have_required=yes +fi; } +IFS=$as_save_IFS + + + if test "x$CONFIG_SHELL" != x; then : + export CONFIG_SHELL + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed `exec'. +$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2 +exit 255 +fi + + if test x$as_have_required = xno; then : + $as_echo "$0: This script requires a shell more modern than all" + $as_echo "$0: the shells that I found on your system." + if test x${ZSH_VERSION+set} = xset ; then + $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should" + $as_echo "$0: be upgraded to zsh 4.3.4 or later." + else + $as_echo "$0: Please tell bug-autoconf@gnu.org about your system, +$0: including any error possibly output before this +$0: message. Then install a modern shell, or manually run +$0: the script under such a shell if you do have one." + fi + exit 1 +fi +fi +fi +SHELL=${CONFIG_SHELL-/bin/sh} +export SHELL +# Unset more variables known to interfere with behavior of common tools. +CLICOLOR_FORCE= GREP_OPTIONS= +unset CLICOLOR_FORCE GREP_OPTIONS + +## --------------------- ## +## M4sh Shell Functions. ## +## --------------------- ## +# as_fn_unset VAR +# --------------- +# Portably unset VAR. +as_fn_unset () +{ + { eval $1=; unset $1;} +} +as_unset=as_fn_unset + +# as_fn_set_status STATUS +# ----------------------- +# Set $? to STATUS, without forking. +as_fn_set_status () +{ + return $1 +} # as_fn_set_status + +# as_fn_exit STATUS +# ----------------- +# Exit the shell with STATUS, even in a "trap 0" or "set -e" context. +as_fn_exit () +{ + set +e + as_fn_set_status $1 + exit $1 +} # as_fn_exit + +# as_fn_mkdir_p +# ------------- +# Create "$as_dir" as a directory, including parents if necessary. +as_fn_mkdir_p () +{ + + case $as_dir in #( + -*) as_dir=./$as_dir;; + esac + test -d "$as_dir" || eval $as_mkdir_p || { + as_dirs= + while :; do + case $as_dir in #( + *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'( + *) as_qdir=$as_dir;; + esac + as_dirs="'$as_qdir' $as_dirs" + as_dir=`$as_dirname -- "$as_dir" || +$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$as_dir" : 'X\(//\)[^/]' \| \ + X"$as_dir" : 'X\(//\)$' \| \ + X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$as_dir" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + test -d "$as_dir" && break + done + test -z "$as_dirs" || eval "mkdir $as_dirs" + } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir" + + +} # as_fn_mkdir_p + +# as_fn_executable_p FILE +# ----------------------- +# Test if FILE is an executable regular file. +as_fn_executable_p () +{ + test -f "$1" && test -x "$1" +} # as_fn_executable_p +# as_fn_append VAR VALUE +# ---------------------- +# Append the text in VALUE to the end of the definition contained in VAR. Take +# advantage of any shell optimizations that allow amortized linear growth over +# repeated appends, instead of the typical quadratic growth present in naive +# implementations. +if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then : + eval 'as_fn_append () + { + eval $1+=\$2 + }' +else + as_fn_append () + { + eval $1=\$$1\$2 + } +fi # as_fn_append + +# as_fn_arith ARG... +# ------------------ +# Perform arithmetic evaluation on the ARGs, and store the result in the +# global $as_val. Take advantage of shells that can avoid forks. The arguments +# must be portable across $(()) and expr. +if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then : + eval 'as_fn_arith () + { + as_val=$(( $* )) + }' +else + as_fn_arith () + { + as_val=`expr "$@" || test $? -eq 1` + } +fi # as_fn_arith + + +# as_fn_error STATUS ERROR [LINENO LOG_FD] +# ---------------------------------------- +# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are +# provided, also output the error to LOG_FD, referencing LINENO. Then exit the +# script with STATUS, using 1 if that was 0. +as_fn_error () +{ + as_status=$1; test $as_status -eq 0 && as_status=1 + if test "$4"; then + as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 + fi + $as_echo "$as_me: error: $2" >&2 + as_fn_exit $as_status +} # as_fn_error + +if expr a : '\(a\)' >/dev/null 2>&1 && + test "X`expr 00001 : '.*\(...\)'`" = X001; then + as_expr=expr +else + as_expr=false +fi + +if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + +if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then + as_dirname=dirname +else + as_dirname=false +fi + +as_me=`$as_basename -- "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + + + as_lineno_1=$LINENO as_lineno_1a=$LINENO + as_lineno_2=$LINENO as_lineno_2a=$LINENO + eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" && + test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || { + # Blame Lee E. McMahon (1931-1989) for sed's syntax. :-) + sed -n ' + p + /[$]LINENO/= + ' <$as_myself | + sed ' + s/[$]LINENO.*/&-/ + t lineno + b + :lineno + N + :loop + s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/ + t loop + s/-\n.*// + ' >$as_me.lineno && + chmod +x "$as_me.lineno" || + { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; } + + # If we had to re-execute with $CONFIG_SHELL, we're ensured to have + # already done that, so ensure we don't try to do so again and fall + # in an infinite loop. This has already happened in practice. + _as_can_reexec=no; export _as_can_reexec + # Don't try to exec as it changes $[0], causing all sort of problems + # (the dirname of $[0] is not the place where we might find the + # original and so on. Autoconf is especially sensitive to this). + . "./$as_me.lineno" + # Exit status is that of the last command. + exit +} + +ECHO_C= ECHO_N= ECHO_T= +case `echo -n x` in #((((( +-n*) + case `echo 'xy\c'` in + *c*) ECHO_T=' ';; # ECHO_T is single tab character. + xy) ECHO_C='\c';; + *) echo `echo ksh88 bug on AIX 6.1` > /dev/null + ECHO_T=' ';; + esac;; +*) + ECHO_N='-n';; +esac + +rm -f conf$$ conf$$.exe conf$$.file +if test -d conf$$.dir; then + rm -f conf$$.dir/conf$$.file +else + rm -f conf$$.dir + mkdir conf$$.dir 2>/dev/null +fi +if (echo >conf$$.file) 2>/dev/null; then + if ln -s conf$$.file conf$$ 2>/dev/null; then + as_ln_s='ln -s' + # ... but there are two gotchas: + # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail. + # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable. + # In both cases, we have to default to `cp -pR'. + ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe || + as_ln_s='cp -pR' + elif ln conf$$.file conf$$ 2>/dev/null; then + as_ln_s=ln + else + as_ln_s='cp -pR' + 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See below for descriptions of some of the useful variables. + +Defaults for the options are specified in brackets. + +Configuration: + -h, --help display this help and exit + --help=short display options specific to this package + --help=recursive display the short help of all the included packages + -V, --version display version information and exit + -q, --quiet, --silent do not print \`checking ...' messages + --cache-file=FILE cache test results in FILE [disabled] + -C, --config-cache alias for \`--cache-file=config.cache' + -n, --no-create do not create output files + --srcdir=DIR find the sources in DIR [configure dir or \`..'] + +Installation directories: + --prefix=PREFIX install architecture-independent files in PREFIX + [$ac_default_prefix] + --exec-prefix=EPREFIX install architecture-dependent files in EPREFIX + [PREFIX] + +By default, \`make install' will install all the files in +\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc. You can specify +an installation prefix other than \`$ac_default_prefix' using \`--prefix', +for instance \`--prefix=\$HOME'. + +For better control, use the options below. + +Fine tuning of the installation directories: + --bindir=DIR user executables [EPREFIX/bin] + --sbindir=DIR system admin executables [EPREFIX/sbin] + --libexecdir=DIR program executables [EPREFIX/libexec] + --sysconfdir=DIR read-only single-machine data [PREFIX/etc] + --sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com] + --localstatedir=DIR modifiable single-machine data [PREFIX/var] + --libdir=DIR object code libraries [EPREFIX/lib] + --includedir=DIR C header files [PREFIX/include] + --oldincludedir=DIR C header files for non-gcc [/usr/include] + --datarootdir=DIR read-only arch.-independent data root [PREFIX/share] + --datadir=DIR read-only architecture-independent data [DATAROOTDIR] + --infodir=DIR info documentation [DATAROOTDIR/info] + --localedir=DIR locale-dependent data [DATAROOTDIR/locale] + --mandir=DIR man documentation [DATAROOTDIR/man] + --docdir=DIR documentation root [DATAROOTDIR/doc/libbacktrace] + --htmldir=DIR html documentation [DOCDIR] + --dvidir=DIR dvi documentation [DOCDIR] + --pdfdir=DIR pdf documentation [DOCDIR] + --psdir=DIR ps documentation [DOCDIR] +_ACEOF + + cat <<\_ACEOF + +Program names: + --program-prefix=PREFIX prepend PREFIX to installed program names + --program-suffix=SUFFIX append SUFFIX to installed program names + --program-transform-name=PROGRAM run sed PROGRAM on installed program names + +System types: + --build=BUILD configure for building on BUILD [guessed] + --host=HOST cross-compile to build programs to run on HOST [BUILD] + --target=TARGET configure for building compilers for TARGET [HOST] +_ACEOF +fi + +if test -n "$ac_init_help"; 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Returns whether the value could be +# computed +ac_fn_c_compute_int () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + if test "$cross_compiling" = yes; then + # Depending upon the size, compute the lo and hi bounds. +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +int +main () +{ +static int test_array [1 - 2 * !(($2) >= 0)]; +test_array [0] = 0; +return test_array [0]; + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_lo=0 ac_mid=0 + while :; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +int +main () +{ +static int test_array [1 - 2 * !(($2) <= $ac_mid)]; +test_array [0] = 0; +return test_array [0]; + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_hi=$ac_mid; break +else + as_fn_arith $ac_mid + 1 && ac_lo=$as_val + if test $ac_lo -le $ac_mid; then + ac_lo= ac_hi= + break + fi + as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + done +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +int +main () +{ +static int test_array [1 - 2 * !(($2) < 0)]; +test_array [0] = 0; +return test_array [0]; + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_hi=-1 ac_mid=-1 + while :; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +int +main () +{ +static int test_array [1 - 2 * !(($2) >= $ac_mid)]; +test_array [0] = 0; +return test_array [0]; + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_lo=$ac_mid; break +else + as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val + if test $ac_mid -le $ac_hi; then + ac_lo= ac_hi= + break + fi + as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + done +else + ac_lo= ac_hi= +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +# Binary search between lo and hi bounds. +while test "x$ac_lo" != "x$ac_hi"; do + as_fn_arith '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo && ac_mid=$as_val + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +int +main () +{ +static int test_array [1 - 2 * !(($2) <= $ac_mid)]; +test_array [0] = 0; +return test_array [0]; + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_hi=$ac_mid +else + as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +done +case $ac_lo in #(( +?*) eval "$3=\$ac_lo"; ac_retval=0 ;; +'') ac_retval=1 ;; +esac + else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +static long int longval () { return $2; } +static unsigned long int ulongval () { return $2; } +#include <stdio.h> +#include <stdlib.h> +int +main () +{ + + FILE *f = fopen ("conftest.val", "w"); + if (! f) + return 1; + if (($2) < 0) + { + long int i = longval (); + if (i != ($2)) + return 1; + fprintf (f, "%ld", i); + } + else + { + unsigned long int i = ulongval (); + if (i != ($2)) + return 1; + fprintf (f, "%lu", i); + } + /* Do not output a trailing newline, as this causes \r\n confusion + on some platforms. */ + return ferror (f) || fclose (f) != 0; + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + echo >>conftest.val; read $3 <conftest.val; ac_retval=0 +else + ac_retval=1 +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +rm -f conftest.val + + fi + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + as_fn_set_status $ac_retval + +} # ac_fn_c_compute_int + +# ac_fn_c_check_decl LINENO SYMBOL VAR INCLUDES +# --------------------------------------------- +# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR +# accordingly. +ac_fn_c_check_decl () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + as_decl_name=`echo $2|sed 's/ *(.*//'` + as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'` + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5 +$as_echo_n "checking whether $as_decl_name is declared... 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"invalid value of canonical host" "$LINENO" 5;; +esac +host=$ac_cv_host +ac_save_IFS=$IFS; IFS='-' +set x $ac_cv_host +shift +host_cpu=$1 +host_vendor=$2 +shift; shift +# Remember, the first character of IFS is used to create $*, +# except with old shells: +host_os=$* +IFS=$ac_save_IFS +case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking target system type" >&5 +$as_echo_n "checking target system type... " >&6; } +if ${ac_cv_target+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test "x$target_alias" = x; then + ac_cv_target=$ac_cv_host +else + ac_cv_target=`$SHELL "$ac_aux_dir/config.sub" $target_alias` || + as_fn_error $? "$SHELL $ac_aux_dir/config.sub $target_alias failed" "$LINENO" 5 +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_target" >&5 +$as_echo "$ac_cv_target" >&6; } +case $ac_cv_target in +*-*-*) ;; +*) as_fn_error $? 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" >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "gcc", so it can be a program name with args. +set dummy gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +else + CC="$ac_cv_prog_CC" +fi + +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. +set dummy ${ac_tool_prefix}cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + fi +fi +if test -z "$CC"; then + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + ac_prog_rejected=no +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then + ac_prog_rejected=yes + continue + fi + ac_cv_prog_CC="cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +if test $ac_prog_rejected = yes; then + # We found a bogon in the path, so make sure we never use it. + set dummy $ac_cv_prog_CC + shift + if test $# != 0; then + # We chose a different compiler from the bogus one. + # However, it has the same basename, so the bogon will be chosen + # first if we set CC to just the basename; use the full file name. + shift + ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" + fi +fi +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + for ac_prog in cl.exe + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$CC" && break + done +fi +if test -z "$CC"; then + ac_ct_CC=$CC + for ac_prog in cl.exe +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_CC" && break +done + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +fi + +fi + + +test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "no acceptable C compiler found in \$PATH +See \`config.log' for more details" "$LINENO" 5; } + +# Provide some information about the compiler. +$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5 +set X $ac_compile +ac_compiler=$2 +for ac_option in --version -v -V -qversion; do + { { ac_try="$ac_compiler $ac_option >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compiler $ac_option >&5") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + sed '10a\ +... rest of stderr output deleted ... + 10q' conftest.err >conftest.er1 + cat conftest.er1 >&5 + fi + rm -f conftest.er1 conftest.err + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +done + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +ac_clean_files_save=$ac_clean_files +ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out" +# Try to create an executable without -o first, disregard a.out. +# It will help us diagnose broken compilers, and finding out an intuition +# of exeext. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5 +$as_echo_n "checking whether the C compiler works... " >&6; } +ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'` + +# The possible output files: +ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*" + +ac_rmfiles= +for ac_file in $ac_files +do + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;; + * ) ac_rmfiles="$ac_rmfiles $ac_file";; + esac +done +rm -f $ac_rmfiles + +if { { ac_try="$ac_link_default" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link_default") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then : + # Autoconf-2.13 could set the ac_cv_exeext variable to `no'. +# So ignore a value of `no', otherwise this would lead to `EXEEXT = no' +# in a Makefile. We should not override ac_cv_exeext if it was cached, +# so that the user can short-circuit this test for compilers unknown to +# Autoconf. +for ac_file in $ac_files '' +do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) + ;; + [ab].out ) + # We found the default executable, but exeext='' is most + # certainly right. + break;; + *.* ) + if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no; + then :; else + ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + fi + # We set ac_cv_exeext here because the later test for it is not + # safe: cross compilers may not add the suffix if given an `-o' + # argument, so we may need to know it at that point already. + # Even if this section looks crufty: it has the advantage of + # actually working. + break;; + * ) + break;; + esac +done +test "$ac_cv_exeext" = no && ac_cv_exeext= + +else + ac_file='' +fi +if test -z "$ac_file"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +$as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error 77 "C compiler cannot create executables +See \`config.log' for more details" "$LINENO" 5; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5 +$as_echo_n "checking for C compiler default output file name... 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For instance with Cygwin, `ls conftest' will +# work properly (i.e., refer to `conftest.exe'), while it won't with +# `rm'. +for ac_file in conftest.exe conftest conftest.*; do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;; + *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + break;; + * ) break;; + esac +done +else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot compute suffix of executables: cannot compile and link +See \`config.log' for more details" "$LINENO" 5; } +fi +rm -f conftest conftest$ac_cv_exeext +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5 +$as_echo "$ac_cv_exeext" >&6; } + +rm -f conftest.$ac_ext +EXEEXT=$ac_cv_exeext +ac_exeext=$EXEEXT +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <stdio.h> +int +main () +{ +FILE *f = fopen ("conftest.out", "w"); + return ferror (f) || fclose (f) != 0; + + ; + return 0; +} +_ACEOF +ac_clean_files="$ac_clean_files conftest.out" +# Check that the compiler produces executables we can run. If not, either +# the compiler is broken, or we cross compile. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5 +$as_echo_n "checking whether we are cross compiling... " >&6; } +if test "$cross_compiling" != yes; then + { { ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + if { ac_try='./conftest$ac_cv_exeext' + { { case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then + cross_compiling=no + else + if test "$cross_compiling" = maybe; then + cross_compiling=yes + else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot run C compiled programs. +If you meant to cross compile, use \`--host'. +See \`config.log' for more details" "$LINENO" 5; } + fi + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5 +$as_echo "$cross_compiling" >&6; } + +rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out +ac_clean_files=$ac_clean_files_save +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5 +$as_echo_n "checking for suffix of object files... " >&6; } +if ${ac_cv_objext+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.o conftest.obj +if { { ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compile") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then : + for ac_file in conftest.o conftest.obj conftest.*; do + test -f "$ac_file" || continue; + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;; + *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'` + break;; + esac +done +else + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot compute suffix of object files: cannot compile +See \`config.log' for more details" "$LINENO" 5; } +fi +rm -f conftest.$ac_cv_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5 +$as_echo "$ac_cv_objext" >&6; } +OBJEXT=$ac_cv_objext +ac_objext=$OBJEXT +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5 +$as_echo_n "checking whether we are using the GNU C compiler... " >&6; } +if ${ac_cv_c_compiler_gnu+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +#ifndef __GNUC__ + choke me +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_compiler_gnu=yes +else + ac_compiler_gnu=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +ac_cv_c_compiler_gnu=$ac_compiler_gnu + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5 +$as_echo "$ac_cv_c_compiler_gnu" >&6; } +if test $ac_compiler_gnu = yes; then + GCC=yes +else + GCC= +fi +ac_test_CFLAGS=${CFLAGS+set} +ac_save_CFLAGS=$CFLAGS +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5 +$as_echo_n "checking whether $CC accepts -g... " >&6; } +if ${ac_cv_prog_cc_g+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_save_c_werror_flag=$ac_c_werror_flag + ac_c_werror_flag=yes + ac_cv_prog_cc_g=no + CFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_g=yes +else + CFLAGS="" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + +else + ac_c_werror_flag=$ac_save_c_werror_flag + CFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_g=yes +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ac_c_werror_flag=$ac_save_c_werror_flag +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5 +$as_echo "$ac_cv_prog_cc_g" >&6; } +if test "$ac_test_CFLAGS" = set; then + CFLAGS=$ac_save_CFLAGS +elif test $ac_cv_prog_cc_g = yes; then + if test "$GCC" = yes; then + CFLAGS="-g -O2" + else + CFLAGS="-g" + fi +else + if test "$GCC" = yes; then + CFLAGS="-O2" + else + CFLAGS= + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5 +$as_echo_n "checking for $CC option to accept ISO C89... " >&6; } +if ${ac_cv_prog_cc_c89+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_prog_cc_c89=no +ac_save_CC=$CC +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <stdarg.h> +#include <stdio.h> +struct stat; +/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ +struct buf { int x; }; +FILE * (*rcsopen) (struct buf *, struct stat *, int); +static char *e (p, i) + char **p; + int i; +{ + return p[i]; +} +static char *f (char * (*g) (char **, int), char **p, ...) +{ + char *s; + va_list v; + va_start (v,p); + s = g (p, va_arg (v,int)); + va_end (v); + return s; +} + +/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has + function prototypes and stuff, but not '\xHH' hex character constants. + These don't provoke an error unfortunately, instead are silently treated + as 'x'. The following induces an error, until -std is added to get + proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an + array size at least. It's necessary to write '\x00'==0 to get something + that's true only with -std. */ +int osf4_cc_array ['\x00' == 0 ? 1 : -1]; + +/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters + inside strings and character constants. */ +#define FOO(x) 'x' +int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1]; + +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);}; +int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); +int argc; +char **argv; +int +main () +{ +return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; + ; + return 0; +} +_ACEOF +for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \ + -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_c89=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext + test "x$ac_cv_prog_cc_c89" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC + +fi +# AC_CACHE_VAL +case "x$ac_cv_prog_cc_c89" in + x) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; + xno) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; + *) + CC="$CC $ac_cv_prog_cc_c89" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5 +$as_echo "$ac_cv_prog_cc_c89" >&6; } ;; +esac +if test "x$ac_cv_prog_cc_c89" != xno; then : + +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5 +$as_echo_n "checking whether $CC understands -c and -o together... " >&6; } +if ${am_cv_prog_cc_c_o+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF + # Make sure it works both with $CC and with simple cc. + # Following AC_PROG_CC_C_O, we do the test twice because some + # compilers refuse to overwrite an existing .o file with -o, + # though they will create one. + am_cv_prog_cc_c_o=yes + for am_i in 1 2; do + if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5 + ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } \ + && test -f conftest2.$ac_objext; then + : OK + else + am_cv_prog_cc_c_o=no + break + fi + done + rm -f core conftest* + unset am_i +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5 +$as_echo "$am_cv_prog_cc_c_o" >&6; } +if test "$am_cv_prog_cc_c_o" != yes; then + # Losing compiler, so override with the script. + # FIXME: It is wrong to rewrite CC. + # But if we don't then we get into trouble of one sort or another. + # A longer-term fix would be to have automake use am__CC in this case, + # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)" + CC="$am_aux_dir/compile $CC" +fi +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5 +$as_echo_n "checking how to run the C preprocessor... " >&6; } +# On Suns, sometimes $CPP names a directory. +if test -n "$CPP" && test -d "$CPP"; then + CPP= +fi +if test -z "$CPP"; then + if ${ac_cv_prog_CPP+:} false; then : + $as_echo_n "(cached) " >&6 +else + # Double quotes because CPP needs to be expanded + for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp" + do + ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since + # <limits.h> exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifdef __STDC__ +# include <limits.h> +#else +# include <assert.h> +#endif + Syntax error +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + +else + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.i conftest.$ac_ext + + # OK, works on sane cases. Now check whether nonexistent headers + # can be detected and how. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <ac_nonexistent.h> +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + # Broken: success on invalid input. +continue +else + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.i conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.i conftest.err conftest.$ac_ext +if $ac_preproc_ok; then : + break +fi + + done + ac_cv_prog_CPP=$CPP + +fi + CPP=$ac_cv_prog_CPP +else + ac_cv_prog_CPP=$CPP +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5 +$as_echo "$CPP" >&6; } +ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since + # <limits.h> exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifdef __STDC__ +# include <limits.h> +#else +# include <assert.h> +#endif + Syntax error +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + +else + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.i conftest.$ac_ext + + # OK, works on sane cases. Now check whether nonexistent headers + # can be detected and how. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <ac_nonexistent.h> +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + # Broken: success on invalid input. +continue +else + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.i conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.i conftest.err conftest.$ac_ext +if $ac_preproc_ok; then : + +else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "C preprocessor \"$CPP\" fails sanity check +See \`config.log' for more details" "$LINENO" 5; } +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5 +$as_echo_n "checking for grep that handles long lines and -e... 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" >&6; } +if ${ac_cv_path_EGREP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if echo a | $GREP -E '(a|b)' >/dev/null 2>&1 + then ac_cv_path_EGREP="$GREP -E" + else + if test -z "$EGREP"; then + ac_path_EGREP_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in egrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_EGREP" || continue +# Check for GNU ac_path_EGREP and select it if it is found. + # Check for GNU $ac_path_EGREP +case `"$ac_path_EGREP" --version 2>&1` in +*GNU*) + ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo 'EGREP' >> "conftest.nl" + "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_EGREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_EGREP="$ac_path_EGREP" + ac_path_EGREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_EGREP_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_EGREP"; then + as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 + fi +else + ac_cv_path_EGREP=$EGREP +fi + + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5 +$as_echo "$ac_cv_path_EGREP" >&6; } + EGREP="$ac_cv_path_EGREP" + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5 +$as_echo_n "checking for ANSI C header files... " >&6; } +if ${ac_cv_header_stdc+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <float.h> + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_header_stdc=yes +else + ac_cv_header_stdc=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +if test $ac_cv_header_stdc = yes; then + # SunOS 4.x string.h does not declare mem*, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <string.h> + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "memchr" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <stdlib.h> + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "free" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. + if test "$cross_compiling" = yes; then : + : +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <ctype.h> +#include <stdlib.h> +#if ((' ' & 0x0FF) == 0x020) +# define ISLOWER(c) ('a' <= (c) && (c) <= 'z') +# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) +#else +# define ISLOWER(c) \ + (('a' <= (c) && (c) <= 'i') \ + || ('j' <= (c) && (c) <= 'r') \ + || ('s' <= (c) && (c) <= 'z')) +# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) +#endif + +#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) +int +main () +{ + int i; + for (i = 0; i < 256; i++) + if (XOR (islower (i), ISLOWER (i)) + || toupper (i) != TOUPPER (i)) + return 2; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + +else + ac_cv_header_stdc=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5 +$as_echo "$ac_cv_header_stdc" >&6; } +if test $ac_cv_header_stdc = yes; then + +$as_echo "#define STDC_HEADERS 1" >>confdefs.h + +fi + +# On IRIX 5.3, sys/types and inttypes.h are conflicting. +for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ + inttypes.h stdint.h unistd.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default +" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + + + ac_fn_c_check_header_mongrel "$LINENO" "minix/config.h" "ac_cv_header_minix_config_h" "$ac_includes_default" +if test "x$ac_cv_header_minix_config_h" = xyes; then : + MINIX=yes +else + MINIX= +fi + + + if test "$MINIX" = yes; then + +$as_echo "#define _POSIX_SOURCE 1" >>confdefs.h + + +$as_echo "#define _POSIX_1_SOURCE 2" >>confdefs.h + + +$as_echo "#define _MINIX 1" >>confdefs.h + + fi + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether it is safe to define __EXTENSIONS__" >&5 +$as_echo_n "checking whether it is safe to define __EXTENSIONS__... " >&6; } +if ${ac_cv_safe_to_define___extensions__+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +# define __EXTENSIONS__ 1 + $ac_includes_default +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_safe_to_define___extensions__=yes +else + ac_cv_safe_to_define___extensions__=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_safe_to_define___extensions__" >&5 +$as_echo "$ac_cv_safe_to_define___extensions__" >&6; } + test $ac_cv_safe_to_define___extensions__ = yes && + $as_echo "#define __EXTENSIONS__ 1" >>confdefs.h + + $as_echo "#define _ALL_SOURCE 1" >>confdefs.h + + $as_echo "#define _GNU_SOURCE 1" >>confdefs.h + + $as_echo "#define _POSIX_PTHREAD_SEMANTICS 1" >>confdefs.h + + $as_echo "#define _TANDEM_SOURCE 1" >>confdefs.h + + + +libtool_VERSION=1:0:0 + + +# 1.11.1: Require that version of automake. +# foreign: Don't require README, INSTALL, NEWS, etc. +# no-define: Don't define PACKAGE and VERSION. +# no-dependencies: Don't generate automatic dependencies. +# (because it breaks when using bootstrap-lean, since some of the +# headers are gone at "make install" time). +# -Wall: Issue all automake warnings. +# -Wno-portability: Don't warn about constructs supported by GNU make. +# (because GCC requires GNU make anyhow). +am__api_version='1.15' + +# Find a good install program. We prefer a C program (faster), +# so one script is as good as another. But avoid the broken or +# incompatible versions: +# SysV /etc/install, /usr/sbin/install +# SunOS /usr/etc/install +# IRIX /sbin/install +# AIX /bin/install +# AmigaOS /C/install, which installs bootblocks on floppy discs +# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag +# AFS /usr/afsws/bin/install, which mishandles nonexistent args +# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff" +# OS/2's system install, which has a completely different semantic +# ./install, which can be erroneously created by make from ./install.sh. +# Reject install programs that cannot install multiple files. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5 +$as_echo_n "checking for a BSD-compatible install... " >&6; } +if test -z "$INSTALL"; then +if ${ac_cv_path_install+:} false; then : + $as_echo_n "(cached) " >&6 +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + # Account for people who put trailing slashes in PATH elements. +case $as_dir/ in #(( + ./ | .// | /[cC]/* | \ + /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \ + ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \ + /usr/ucb/* ) ;; + *) + # OSF1 and SCO ODT 3.0 have their own names for install. + # Don't use installbsd from OSF since it installs stuff as root + # by default. + for ac_prog in ginstall scoinst install; do + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then + if test $ac_prog = install && + grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then + # AIX install. It has an incompatible calling convention. + : + elif test $ac_prog = install && + grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then + # program-specific install script used by HP pwplus--don't use. + : + else + rm -rf conftest.one conftest.two conftest.dir + echo one > conftest.one + echo two > conftest.two + mkdir conftest.dir + if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" && + test -s conftest.one && test -s conftest.two && + test -s conftest.dir/conftest.one && + test -s conftest.dir/conftest.two + then + ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c" + break 3 + fi + fi + fi + done + done + ;; +esac + + done +IFS=$as_save_IFS + +rm -rf conftest.one conftest.two conftest.dir + +fi + if test "${ac_cv_path_install+set}" = set; then + INSTALL=$ac_cv_path_install + else + # As a last resort, use the slow shell script. Don't cache a + # value for INSTALL within a source directory, because that will + # break other packages using the cache if that directory is + # removed, or if the value is a relative name. + INSTALL=$ac_install_sh + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5 +$as_echo "$INSTALL" >&6; } + +# Use test -z because SunOS4 sh mishandles braces in ${var-val}. +# It thinks the first close brace ends the variable substitution. +test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}' + +test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}' + +test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644' + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5 +$as_echo_n "checking whether build environment is sane... " >&6; } +# Reject unsafe characters in $srcdir or the absolute working directory +# name. Accept space and tab only in the latter. +am_lf=' +' +case `pwd` in + *[\\\"\#\$\&\'\`$am_lf]*) + as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;; +esac +case $srcdir in + *[\\\"\#\$\&\'\`$am_lf\ \ ]*) + as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;; +esac + +# Do 'set' in a subshell so we don't clobber the current shell's +# arguments. Must try -L first in case configure is actually a +# symlink; some systems play weird games with the mod time of symlinks +# (eg FreeBSD returns the mod time of the symlink's containing +# directory). +if ( + am_has_slept=no + for am_try in 1 2; do + echo "timestamp, slept: $am_has_slept" > conftest.file + set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null` + if test "$*" = "X"; then + # -L didn't work. + set X `ls -t "$srcdir/configure" conftest.file` + fi + if test "$*" != "X $srcdir/configure conftest.file" \ + && test "$*" != "X conftest.file $srcdir/configure"; then + + # If neither matched, then we have a broken ls. This can happen + # if, for instance, CONFIG_SHELL is bash and it inherits a + # broken ls alias from the environment. This has actually + # happened. Such a system could not be considered "sane". + as_fn_error $? "ls -t appears to fail. Make sure there is not a broken + alias in your environment" "$LINENO" 5 + fi + if test "$2" = conftest.file || test $am_try -eq 2; then + break + fi + # Just in case. + sleep 1 + am_has_slept=yes + done + test "$2" = conftest.file + ) +then + # Ok. + : +else + as_fn_error $? "newly created file is older than distributed files! +Check your system clock" "$LINENO" 5 +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +# If we didn't sleep, we still need to ensure time stamps of config.status and +# generated files are strictly newer. +am_sleep_pid= +if grep 'slept: no' conftest.file >/dev/null 2>&1; then + ( sleep 1 ) & + am_sleep_pid=$! +fi + +rm -f conftest.file + +test "$program_prefix" != NONE && + program_transform_name="s&^&$program_prefix&;$program_transform_name" +# Use a double $ so make ignores it. +test "$program_suffix" != NONE && + program_transform_name="s&\$&$program_suffix&;$program_transform_name" +# Double any \ or $. +# By default was `s,x,x', remove it if useless. +ac_script='s/[\\$]/&&/g;s/;s,x,x,$//' +program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"` + +if test x"${MISSING+set}" != xset; then + case $am_aux_dir in + *\ * | *\ *) + MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;; + *) + MISSING="\${SHELL} $am_aux_dir/missing" ;; + esac +fi +# Use eval to expand $SHELL +if eval "$MISSING --is-lightweight"; then + am_missing_run="$MISSING " +else + am_missing_run= + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5 +$as_echo "$as_me: WARNING: 'missing' script is too old or missing" >&2;} +fi + +if test x"${install_sh+set}" != xset; then + case $am_aux_dir in + *\ * | *\ *) + install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;; + *) + install_sh="\${SHELL} $am_aux_dir/install-sh" + esac +fi + +# Installed binaries are usually stripped using 'strip' when the user +# run "make install-strip". However 'strip' might not be the right +# tool to use in cross-compilation environments, therefore Automake +# will honor the 'STRIP' environment variable to overrule this program. +if test "$cross_compiling" != no; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. +set dummy ${ac_tool_prefix}strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$STRIP"; then + ac_cv_prog_STRIP="$STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_STRIP="${ac_tool_prefix}strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +STRIP=$ac_cv_prog_STRIP +if test -n "$STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5 +$as_echo "$STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_STRIP"; then + ac_ct_STRIP=$STRIP + # Extract the first word of "strip", so it can be a program name with args. +set dummy strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_STRIP"; then + ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_STRIP="strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP +if test -n "$ac_ct_STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5 +$as_echo "$ac_ct_STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_STRIP" = x; then + STRIP=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + STRIP=$ac_ct_STRIP + fi +else + STRIP="$ac_cv_prog_STRIP" +fi + +fi +INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s" + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a thread-safe mkdir -p" >&5 +$as_echo_n "checking for a thread-safe mkdir -p... " >&6; } +if test -z "$MKDIR_P"; then + if ${ac_cv_path_mkdir+:} false; then : + $as_echo_n "(cached) " >&6 +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in mkdir gmkdir; do + for ac_exec_ext in '' $ac_executable_extensions; do + as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue + case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #( + 'mkdir (GNU coreutils) '* | \ + 'mkdir (coreutils) '* | \ + 'mkdir (fileutils) '4.1*) + ac_cv_path_mkdir=$as_dir/$ac_prog$ac_exec_ext + break 3;; + esac + done + done + done +IFS=$as_save_IFS + +fi + + test -d ./--version && rmdir ./--version + if test "${ac_cv_path_mkdir+set}" = set; then + MKDIR_P="$ac_cv_path_mkdir -p" + else + # As a last resort, use the slow shell script. Don't cache a + # value for MKDIR_P within a source directory, because that will + # break other packages using the cache if that directory is + # removed, or if the value is a relative name. + MKDIR_P="$ac_install_sh -d" + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5 +$as_echo "$MKDIR_P" >&6; } + +for ac_prog in gawk mawk nawk awk +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_AWK+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$AWK"; then + ac_cv_prog_AWK="$AWK" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_AWK="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +AWK=$ac_cv_prog_AWK +if test -n "$AWK"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5 +$as_echo "$AWK" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$AWK" && break +done + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5 +$as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; } +set x ${MAKE-make} +ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'` +if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat >conftest.make <<\_ACEOF +SHELL = /bin/sh +all: + @echo '@@@%%%=$(MAKE)=@@@%%%' +_ACEOF +# GNU make sometimes prints "make[1]: Entering ...", which would confuse us. +case `${MAKE-make} -f conftest.make 2>/dev/null` in + *@@@%%%=?*=@@@%%%*) + eval ac_cv_prog_make_${ac_make}_set=yes;; + *) + eval ac_cv_prog_make_${ac_make}_set=no;; +esac +rm -f conftest.make +fi +if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + SET_MAKE= +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + SET_MAKE="MAKE=${MAKE-make}" +fi + +rm -rf .tst 2>/dev/null +mkdir .tst 2>/dev/null +if test -d .tst; then + am__leading_dot=. +else + am__leading_dot=_ +fi +rmdir .tst 2>/dev/null + +# Check whether --enable-silent-rules was given. +if test "${enable_silent_rules+set}" = set; then : + enableval=$enable_silent_rules; +fi + +case $enable_silent_rules in # ((( + yes) AM_DEFAULT_VERBOSITY=0;; + no) AM_DEFAULT_VERBOSITY=1;; + *) AM_DEFAULT_VERBOSITY=1;; +esac +am_make=${MAKE-make} +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5 +$as_echo_n "checking whether $am_make supports nested variables... " >&6; } +if ${am_cv_make_support_nested_variables+:} false; then : + $as_echo_n "(cached) " >&6 +else + if $as_echo 'TRUE=$(BAR$(V)) +BAR0=false +BAR1=true +V=1 +am__doit: + @$(TRUE) +.PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then + am_cv_make_support_nested_variables=yes +else + am_cv_make_support_nested_variables=no +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5 +$as_echo "$am_cv_make_support_nested_variables" >&6; } +if test $am_cv_make_support_nested_variables = yes; then + AM_V='$(V)' + AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)' +else + AM_V=$AM_DEFAULT_VERBOSITY + AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY +fi +AM_BACKSLASH='\' + +if test "`cd $srcdir && pwd`" != "`pwd`"; then + # Use -I$(srcdir) only when $(srcdir) != ., so that make's output + # is not polluted with repeated "-I." + am__isrc=' -I$(srcdir)' + # test to see if srcdir already configured + if test -f $srcdir/config.status; then + as_fn_error $? "source directory already configured; run \"make distclean\" there first" "$LINENO" 5 + fi +fi + +# test whether we have cygpath +if test -z "$CYGPATH_W"; then + if (cygpath --version) >/dev/null 2>/dev/null; then + CYGPATH_W='cygpath -w' + else + CYGPATH_W=echo + fi +fi + + +# Define the identity of the package. + PACKAGE='libbacktrace' + VERSION='version-unused' + + +# Some tools Automake needs. + +ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"} + + +AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"} + + +AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"} + + +AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"} + + +MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"} + +# For better backward compatibility. To be removed once Automake 1.9.x +# dies out for good. For more background, see: +# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html> +# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html> +mkdir_p='$(MKDIR_P)' + +# We need awk for the "check" target (and possibly the TAP driver). The +# system "awk" is bad on some platforms. +# Always define AMTAR for backward compatibility. Yes, it's still used +# in the wild :-( We should find a proper way to deprecate it ... +AMTAR='$${TAR-tar}' + + +# We'll loop over all known methods to create a tar archive until one works. +_am_tools='gnutar pax cpio none' + +am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -' + + + + + + +# POSIX will say in a future version that running "rm -f" with no argument +# is OK; and we want to be able to make that assumption in our Makefile +# recipes. So use an aggressive probe to check that the usage we want is +# actually supported "in the wild" to an acceptable degree. +# See automake bug#10828. +# To make any issue more visible, cause the running configure to be aborted +# by default if the 'rm' program in use doesn't match our expectations; the +# user can still override this though. +if rm -f && rm -fr && rm -rf; then : OK; else + cat >&2 <<'END' +Oops! + +Your 'rm' program seems unable to run without file operands specified +on the command line, even when the '-f' option is present. This is contrary +to the behaviour of most rm programs out there, and not conforming with +the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542> + +Please tell bug-automake@gnu.org about your system, including the value +of your $PATH and any error possibly output before this message. This +can help us improve future automake versions. + +END + if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then + echo 'Configuration will proceed anyway, since you have set the' >&2 + echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2 + echo >&2 + else + cat >&2 <<'END' +Aborting the configuration process, to ensure you take notice of the issue. + +You can download and install GNU coreutils to get an 'rm' implementation +that behaves properly: <http://www.gnu.org/software/coreutils/>. + +If you want to complete the configuration process using your problematic +'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM +to "yes", and re-run configure. + +END + as_fn_error $? "Your 'rm' program is bad, sorry." "$LINENO" 5 + fi +fi + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable maintainer-specific portions of Makefiles" >&5 +$as_echo_n "checking whether to enable maintainer-specific portions of Makefiles... " >&6; } + # Check whether --enable-maintainer-mode was given. +if test "${enable_maintainer_mode+set}" = set; then : + enableval=$enable_maintainer_mode; USE_MAINTAINER_MODE=$enableval +else + USE_MAINTAINER_MODE=no +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $USE_MAINTAINER_MODE" >&5 +$as_echo "$USE_MAINTAINER_MODE" >&6; } + if test $USE_MAINTAINER_MODE = yes; then + MAINTAINER_MODE_TRUE= + MAINTAINER_MODE_FALSE='#' +else + MAINTAINER_MODE_TRUE='#' + MAINTAINER_MODE_FALSE= +fi + + MAINT=$MAINTAINER_MODE_TRUE + + + + +# Check whether --with-target-subdir was given. +if test "${with_target_subdir+set}" = set; then : + withval=$with_target_subdir; +fi + + +# We must force CC to /not/ be precious variables; otherwise +# the wrong, non-multilib-adjusted value will be used in multilibs. +# As a side effect, we have to subst CFLAGS ourselves. + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args. +set dummy ${ac_tool_prefix}gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "gcc", so it can be a program name with args. +set dummy gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +else + CC="$ac_cv_prog_CC" +fi + +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. +set dummy ${ac_tool_prefix}cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + fi +fi +if test -z "$CC"; then + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + ac_prog_rejected=no +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then + ac_prog_rejected=yes + continue + fi + ac_cv_prog_CC="cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +if test $ac_prog_rejected = yes; then + # We found a bogon in the path, so make sure we never use it. + set dummy $ac_cv_prog_CC + shift + if test $# != 0; then + # We chose a different compiler from the bogus one. + # However, it has the same basename, so the bogon will be chosen + # first if we set CC to just the basename; use the full file name. + shift + ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" + fi +fi +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + for ac_prog in cl.exe + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$CC" && break + done +fi +if test -z "$CC"; then + ac_ct_CC=$CC + for ac_prog in cl.exe +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_CC" && break +done + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +fi + +fi + + +test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "no acceptable C compiler found in \$PATH +See \`config.log' for more details" "$LINENO" 5; } + +# Provide some information about the compiler. +$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5 +set X $ac_compile +ac_compiler=$2 +for ac_option in --version -v -V -qversion; do + { { ac_try="$ac_compiler $ac_option >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compiler $ac_option >&5") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + sed '10a\ +... rest of stderr output deleted ... + 10q' conftest.err >conftest.er1 + cat conftest.er1 >&5 + fi + rm -f conftest.er1 conftest.err + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +done + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5 +$as_echo_n "checking whether we are using the GNU C compiler... " >&6; } +if ${ac_cv_c_compiler_gnu+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +#ifndef __GNUC__ + choke me +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_compiler_gnu=yes +else + ac_compiler_gnu=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +ac_cv_c_compiler_gnu=$ac_compiler_gnu + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5 +$as_echo "$ac_cv_c_compiler_gnu" >&6; } +if test $ac_compiler_gnu = yes; then + GCC=yes +else + GCC= +fi +ac_test_CFLAGS=${CFLAGS+set} +ac_save_CFLAGS=$CFLAGS +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5 +$as_echo_n "checking whether $CC accepts -g... " >&6; } +if ${ac_cv_prog_cc_g+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_save_c_werror_flag=$ac_c_werror_flag + ac_c_werror_flag=yes + ac_cv_prog_cc_g=no + CFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_g=yes +else + CFLAGS="" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + +else + ac_c_werror_flag=$ac_save_c_werror_flag + CFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_g=yes +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ac_c_werror_flag=$ac_save_c_werror_flag +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5 +$as_echo "$ac_cv_prog_cc_g" >&6; } +if test "$ac_test_CFLAGS" = set; then + CFLAGS=$ac_save_CFLAGS +elif test $ac_cv_prog_cc_g = yes; then + if test "$GCC" = yes; then + CFLAGS="-g -O2" + else + CFLAGS="-g" + fi +else + if test "$GCC" = yes; then + CFLAGS="-O2" + else + CFLAGS= + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5 +$as_echo_n "checking for $CC option to accept ISO C89... " >&6; } +if ${ac_cv_prog_cc_c89+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_prog_cc_c89=no +ac_save_CC=$CC +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <stdarg.h> +#include <stdio.h> +struct stat; +/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ +struct buf { int x; }; +FILE * (*rcsopen) (struct buf *, struct stat *, int); +static char *e (p, i) + char **p; + int i; +{ + return p[i]; +} +static char *f (char * (*g) (char **, int), char **p, ...) +{ + char *s; + va_list v; + va_start (v,p); + s = g (p, va_arg (v,int)); + va_end (v); + return s; +} + +/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has + function prototypes and stuff, but not '\xHH' hex character constants. + These don't provoke an error unfortunately, instead are silently treated + as 'x'. The following induces an error, until -std is added to get + proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an + array size at least. It's necessary to write '\x00'==0 to get something + that's true only with -std. */ +int osf4_cc_array ['\x00' == 0 ? 1 : -1]; + +/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters + inside strings and character constants. */ +#define FOO(x) 'x' +int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1]; + +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);}; +int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); +int argc; +char **argv; +int +main () +{ +return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; + ; + return 0; +} +_ACEOF +for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \ + -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_c89=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext + test "x$ac_cv_prog_cc_c89" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC + +fi +# AC_CACHE_VAL +case "x$ac_cv_prog_cc_c89" in + x) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; + xno) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; + *) + CC="$CC $ac_cv_prog_cc_c89" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5 +$as_echo "$ac_cv_prog_cc_c89" >&6; } ;; +esac +if test "x$ac_cv_prog_cc_c89" != xno; then : + +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5 +$as_echo_n "checking whether $CC understands -c and -o together... " >&6; } +if ${am_cv_prog_cc_c_o+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF + # Make sure it works both with $CC and with simple cc. + # Following AC_PROG_CC_C_O, we do the test twice because some + # compilers refuse to overwrite an existing .o file with -o, + # though they will create one. + am_cv_prog_cc_c_o=yes + for am_i in 1 2; do + if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5 + ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } \ + && test -f conftest2.$ac_objext; then + : OK + else + am_cv_prog_cc_c_o=no + break + fi + done + rm -f core conftest* + unset am_i +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5 +$as_echo "$am_cv_prog_cc_c_o" >&6; } +if test "$am_cv_prog_cc_c_o" != yes; then + # Losing compiler, so override with the script. + # FIXME: It is wrong to rewrite CC. + # But if we don't then we get into trouble of one sort or another. + # A longer-term fix would be to have automake use am__CC in this case, + # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)" + CC="$am_aux_dir/compile $CC" +fi +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args. +set dummy ${ac_tool_prefix}ranlib; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_RANLIB+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$RANLIB"; then + ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +RANLIB=$ac_cv_prog_RANLIB +if test -n "$RANLIB"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5 +$as_echo "$RANLIB" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_RANLIB"; then + ac_ct_RANLIB=$RANLIB + # Extract the first word of "ranlib", so it can be a program name with args. +set dummy ranlib; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_RANLIB+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_RANLIB"; then + ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_RANLIB="ranlib" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB +if test -n "$ac_ct_RANLIB"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5 +$as_echo "$ac_ct_RANLIB" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_RANLIB" = x; then + RANLIB=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + RANLIB=$ac_ct_RANLIB + fi +else + RANLIB="$ac_cv_prog_RANLIB" +fi + + +for ac_prog in gawk mawk nawk awk +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_AWK+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$AWK"; then + ac_cv_prog_AWK="$AWK" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_AWK="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +AWK=$ac_cv_prog_AWK +if test -n "$AWK"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5 +$as_echo "$AWK" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$AWK" && break +done + +case "$AWK" in +"") as_fn_error $? "can't build without awk" "$LINENO" 5 ;; +esac + +# Extract the first word of "dwz", so it can be a program name with args. +set dummy dwz; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_DWZ+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$DWZ"; then + ac_cv_prog_DWZ="$DWZ" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_DWZ="dwz" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +DWZ=$ac_cv_prog_DWZ +if test -n "$DWZ"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DWZ" >&5 +$as_echo "$DWZ" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + if test "$DWZ" != ""; then + HAVE_DWZ_TRUE= + HAVE_DWZ_FALSE='#' +else + HAVE_DWZ_TRUE='#' + HAVE_DWZ_FALSE= +fi + + +case `pwd` in + *\ * | *\ *) + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&5 +$as_echo "$as_me: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&2;} ;; +esac + + + +macro_version='2.2.7a' +macro_revision='1.3134' + + + + + + + + + + + + + +ltmain="$ac_aux_dir/ltmain.sh" + +# Backslashify metacharacters that are still active within +# double-quoted strings. +sed_quote_subst='s/\(["`$\\]\)/\\\1/g' + +# Same as above, but do not quote variable references. +double_quote_subst='s/\(["`\\]\)/\\\1/g' + +# Sed substitution to delay expansion of an escaped shell variable in a +# double_quote_subst'ed string. +delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g' + +# Sed substitution to delay expansion of an escaped single quote. +delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g' + +# Sed substitution to avoid accidental globbing in evaled expressions +no_glob_subst='s/\*/\\\*/g' + +ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO +ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to print strings" >&5 +$as_echo_n "checking how to print strings... " >&6; } +# Test print first, because it will be a builtin if present. +if test "X`print -r -- -n 2>/dev/null`" = X-n && \ + test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then + ECHO='print -r --' +elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then + ECHO='printf %s\n' +else + # Use this function as a fallback that always works. + func_fallback_echo () + { + eval 'cat <<_LTECHO_EOF +$1 +_LTECHO_EOF' + } + ECHO='func_fallback_echo' +fi + +# func_echo_all arg... +# Invoke $ECHO with all args, space-separated. +func_echo_all () +{ + $ECHO "" +} + +case "$ECHO" in + printf*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: printf" >&5 +$as_echo "printf" >&6; } ;; + print*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: print -r" >&5 +$as_echo "print -r" >&6; } ;; + *) { $as_echo "$as_me:${as_lineno-$LINENO}: result: cat" >&5 +$as_echo "cat" >&6; } ;; +esac + + + + + + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5 +$as_echo_n "checking for a sed that does not truncate output... " >&6; } +if ${ac_cv_path_SED+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/ + for ac_i in 1 2 3 4 5 6 7; do + ac_script="$ac_script$as_nl$ac_script" + done + echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed + { ac_script=; unset ac_script;} + if test -z "$SED"; then + ac_path_SED_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in sed gsed; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_SED="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_SED" || continue +# Check for GNU ac_path_SED and select it if it is found. + # Check for GNU $ac_path_SED +case `"$ac_path_SED" --version 2>&1` in +*GNU*) + ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo '' >> "conftest.nl" + "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_SED_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_SED="$ac_path_SED" + ac_path_SED_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_SED_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_SED"; then + as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5 + fi +else + ac_cv_path_SED=$SED +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5 +$as_echo "$ac_cv_path_SED" >&6; } + SED="$ac_cv_path_SED" + rm -f conftest.sed + +test -z "$SED" && SED=sed +Xsed="$SED -e 1s/^X//" + + + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5 +$as_echo_n "checking for fgrep... " >&6; } +if ${ac_cv_path_FGREP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if echo 'ab*c' | $GREP -F 'ab*c' >/dev/null 2>&1 + then ac_cv_path_FGREP="$GREP -F" + else + if test -z "$FGREP"; then + ac_path_FGREP_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in fgrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_FGREP="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_FGREP" || continue +# Check for GNU ac_path_FGREP and select it if it is found. + # Check for GNU $ac_path_FGREP +case `"$ac_path_FGREP" --version 2>&1` in +*GNU*) + ac_cv_path_FGREP="$ac_path_FGREP" ac_path_FGREP_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo 'FGREP' >> "conftest.nl" + "$ac_path_FGREP" FGREP < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_FGREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_FGREP="$ac_path_FGREP" + ac_path_FGREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_FGREP_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_FGREP"; then + as_fn_error $? "no acceptable fgrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 + fi +else + ac_cv_path_FGREP=$FGREP +fi + + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5 +$as_echo "$ac_cv_path_FGREP" >&6; } + FGREP="$ac_cv_path_FGREP" + + +test -z "$GREP" && GREP=grep + + + + + + + + + + + + + + + + + + + +# Check whether --with-gnu-ld was given. +if test "${with_gnu_ld+set}" = set; then : + withval=$with_gnu_ld; test "$withval" = no || with_gnu_ld=yes +else + with_gnu_ld=no +fi + +ac_prog=ld +if test "$GCC" = yes; then + # Check if gcc -print-prog-name=ld gives a path. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5 +$as_echo_n "checking for ld used by $CC... " >&6; } + case $host in + *-*-mingw*) + # gcc leaves a trailing carriage return which upsets mingw + ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; + *) + ac_prog=`($CC -print-prog-name=ld) 2>&5` ;; + esac + case $ac_prog in + # Accept absolute paths. + [\\/]* | ?:[\\/]*) + re_direlt='/[^/][^/]*/\.\./' + # Canonicalize the pathname of ld + ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'` + while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do + ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"` + done + test -z "$LD" && LD="$ac_prog" + ;; + "") + # If it fails, then pretend we aren't using GCC. + ac_prog=ld + ;; + *) + # If it is relative, then search for the first ld in PATH. + with_gnu_ld=unknown + ;; + esac +elif test "$with_gnu_ld" = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5 +$as_echo_n "checking for GNU ld... " >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5 +$as_echo_n "checking for non-GNU ld... " >&6; } +fi +if ${lt_cv_path_LD+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -z "$LD"; then + lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + for ac_dir in $PATH; do + IFS="$lt_save_ifs" + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then + lt_cv_path_LD="$ac_dir/$ac_prog" + # Check to see if the program is GNU ld. I'd rather use --version, + # but apparently some variants of GNU ld only accept -v. + # Break only if it was the GNU/non-GNU ld that we prefer. + case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in + *GNU* | *'with BFD'*) + test "$with_gnu_ld" != no && break + ;; + *) + test "$with_gnu_ld" != yes && break + ;; + esac + fi + done + IFS="$lt_save_ifs" +else + lt_cv_path_LD="$LD" # Let the user override the test with a path. +fi +fi + +LD="$lt_cv_path_LD" +if test -n "$LD"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5 +$as_echo "$LD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi +test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5 +$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; } +if ${lt_cv_prog_gnu_ld+:} false; then : + $as_echo_n "(cached) " >&6 +else + # I'd rather use --version here, but apparently some GNU lds only accept -v. +case `$LD -v 2>&1 </dev/null` in +*GNU* | *'with BFD'*) + lt_cv_prog_gnu_ld=yes + ;; +*) + lt_cv_prog_gnu_ld=no + ;; +esac +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5 +$as_echo "$lt_cv_prog_gnu_ld" >&6; } +with_gnu_ld=$lt_cv_prog_gnu_ld + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BSD- or MS-compatible name lister (nm)" >&5 +$as_echo_n "checking for BSD- or MS-compatible name lister (nm)... " >&6; } +if ${lt_cv_path_NM+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$NM"; then + # Let the user override the test. + lt_cv_path_NM="$NM" +else + lt_nm_to_check="${ac_tool_prefix}nm" + if test -n "$ac_tool_prefix" && test "$build" = "$host"; then + lt_nm_to_check="$lt_nm_to_check nm" + fi + for lt_tmp_nm in $lt_nm_to_check; do + lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do + IFS="$lt_save_ifs" + test -z "$ac_dir" && ac_dir=. + tmp_nm="$ac_dir/$lt_tmp_nm" + if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then + # Check to see if the nm accepts a BSD-compat flag. + # Adding the `sed 1q' prevents false positives on HP-UX, which says: + # nm: unknown option "B" ignored + # Tru64's nm complains that /dev/null is an invalid object file + case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in + */dev/null* | *'Invalid file or object type'*) + lt_cv_path_NM="$tmp_nm -B" + break + ;; + *) + case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in + */dev/null*) + lt_cv_path_NM="$tmp_nm -p" + break + ;; + *) + lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but + continue # so that we can try to find one that supports BSD flags + ;; + esac + ;; + esac + fi + done + IFS="$lt_save_ifs" + done + : ${lt_cv_path_NM=no} +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5 +$as_echo "$lt_cv_path_NM" >&6; } +if test "$lt_cv_path_NM" != "no"; then + NM="$lt_cv_path_NM" +else + # Didn't find any BSD compatible name lister, look for dumpbin. + if test -n "$DUMPBIN"; then : + # Let the user override the test. + else + if test -n "$ac_tool_prefix"; then + for ac_prog in dumpbin "link -dump" + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_DUMPBIN+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$DUMPBIN"; then + ac_cv_prog_DUMPBIN="$DUMPBIN" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +DUMPBIN=$ac_cv_prog_DUMPBIN +if test -n "$DUMPBIN"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5 +$as_echo "$DUMPBIN" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$DUMPBIN" && break + done +fi +if test -z "$DUMPBIN"; then + ac_ct_DUMPBIN=$DUMPBIN + for ac_prog in dumpbin "link -dump" +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_DUMPBIN+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_DUMPBIN"; then + ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_DUMPBIN="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN +if test -n "$ac_ct_DUMPBIN"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5 +$as_echo "$ac_ct_DUMPBIN" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_DUMPBIN" && break +done + + if test "x$ac_ct_DUMPBIN" = x; then + DUMPBIN=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + DUMPBIN=$ac_ct_DUMPBIN + fi +fi + + case `$DUMPBIN -symbols /dev/null 2>&1 | sed '1q'` in + *COFF*) + DUMPBIN="$DUMPBIN -symbols" + ;; + *) + DUMPBIN=: + ;; + esac + fi + + if test "$DUMPBIN" != ":"; then + NM="$DUMPBIN" + fi +fi +test -z "$NM" && NM=nm + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5 +$as_echo_n "checking the name lister ($NM) interface... " >&6; } +if ${lt_cv_nm_interface+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_nm_interface="BSD nm" + echo "int some_variable = 0;" > conftest.$ac_ext + (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5) + (eval "$ac_compile" 2>conftest.err) + cat conftest.err >&5 + (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&5) + (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out) + cat conftest.err >&5 + (eval echo "\"\$as_me:$LINENO: output\"" >&5) + cat conftest.out >&5 + if $GREP 'External.*some_variable' conftest.out > /dev/null; then + lt_cv_nm_interface="MS dumpbin" + fi + rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5 +$as_echo "$lt_cv_nm_interface" >&6; } + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5 +$as_echo_n "checking whether ln -s works... " >&6; } +LN_S=$as_ln_s +if test "$LN_S" = "ln -s"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5 +$as_echo "no, using $LN_S" >&6; } +fi + +# find the maximum length of command line arguments +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5 +$as_echo_n "checking the maximum length of command line arguments... " >&6; } +if ${lt_cv_sys_max_cmd_len+:} false; then : + $as_echo_n "(cached) " >&6 +else + i=0 + teststring="ABCD" + + case $build_os in + msdosdjgpp*) + # On DJGPP, this test can blow up pretty badly due to problems in libc + # (any single argument exceeding 2000 bytes causes a buffer overrun + # during glob expansion). Even if it were fixed, the result of this + # check would be larger than it should be. + lt_cv_sys_max_cmd_len=12288; # 12K is about right + ;; + + gnu*) + # Under GNU Hurd, this test is not required because there is + # no limit to the length of command line arguments. + # Libtool will interpret -1 as no limit whatsoever + lt_cv_sys_max_cmd_len=-1; + ;; + + cygwin* | mingw* | cegcc*) + # On Win9x/ME, this test blows up -- it succeeds, but takes + # about 5 minutes as the teststring grows exponentially. + # Worse, since 9x/ME are not pre-emptively multitasking, + # you end up with a "frozen" computer, even though with patience + # the test eventually succeeds (with a max line length of 256k). + # Instead, let's just punt: use the minimum linelength reported by + # all of the supported platforms: 8192 (on NT/2K/XP). + lt_cv_sys_max_cmd_len=8192; + ;; + + mint*) + # On MiNT this can take a long time and run out of memory. + lt_cv_sys_max_cmd_len=8192; + ;; + + amigaos*) + # On AmigaOS with pdksh, this test takes hours, literally. + # So we just punt and use a minimum line length of 8192. + lt_cv_sys_max_cmd_len=8192; + ;; + + netbsd* | freebsd* | openbsd* | darwin* | dragonfly*) + # This has been around since 386BSD, at least. Likely further. + if test -x /sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax` + elif test -x /usr/sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax` + else + lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs + fi + # And add a safety zone + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + ;; + + interix*) + # We know the value 262144 and hardcode it with a safety zone (like BSD) + lt_cv_sys_max_cmd_len=196608 + ;; + + osf*) + # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure + # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not + # nice to cause kernel panics so lets avoid the loop below. + # First set a reasonable default. + lt_cv_sys_max_cmd_len=16384 + # + if test -x /sbin/sysconfig; then + case `/sbin/sysconfig -q proc exec_disable_arg_limit` in + *1*) lt_cv_sys_max_cmd_len=-1 ;; + esac + fi + ;; + sco3.2v5*) + lt_cv_sys_max_cmd_len=102400 + ;; + sysv5* | sco5v6* | sysv4.2uw2*) + kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` + if test -n "$kargmax"; then + lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[ ]//'` + else + lt_cv_sys_max_cmd_len=32768 + fi + ;; + *) + lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` + if test -n "$lt_cv_sys_max_cmd_len"; then + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + else + # Make teststring a little bigger before we do anything with it. + # a 1K string should be a reasonable start. + for i in 1 2 3 4 5 6 7 8 ; do + teststring=$teststring$teststring + done + SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} + # If test is not a shell built-in, we'll probably end up computing a + # maximum length that is only half of the actual maximum length, but + # we can't tell. + while { test "X"`func_fallback_echo "$teststring$teststring" 2>/dev/null` \ + = "X$teststring$teststring"; } >/dev/null 2>&1 && + test $i != 17 # 1/2 MB should be enough + do + i=`expr $i + 1` + teststring=$teststring$teststring + done + # Only check the string length outside the loop. + lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` + teststring= + # Add a significant safety factor because C++ compilers can tack on + # massive amounts of additional arguments before passing them to the + # linker. It appears as though 1/2 is a usable value. + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` + fi + ;; + esac + +fi + +if test -n $lt_cv_sys_max_cmd_len ; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5 +$as_echo "$lt_cv_sys_max_cmd_len" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5 +$as_echo "none" >&6; } +fi +max_cmd_len=$lt_cv_sys_max_cmd_len + + + + + + +: ${CP="cp -f"} +: ${MV="mv -f"} +: ${RM="rm -f"} + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands some XSI constructs" >&5 +$as_echo_n "checking whether the shell understands some XSI constructs... " >&6; } +# Try some XSI features +xsi_shell=no +( _lt_dummy="a/b/c" + test "${_lt_dummy##*/},${_lt_dummy%/*},"${_lt_dummy%"$_lt_dummy"}, \ + = c,a/b,, \ + && eval 'test $(( 1 + 1 )) -eq 2 \ + && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \ + && xsi_shell=yes +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xsi_shell" >&5 +$as_echo "$xsi_shell" >&6; } + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands \"+=\"" >&5 +$as_echo_n "checking whether the shell understands \"+=\"... " >&6; } +lt_shell_append=no +( foo=bar; set foo baz; eval "$1+=\$2" && test "$foo" = barbaz ) \ + >/dev/null 2>&1 \ + && lt_shell_append=yes +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_shell_append" >&5 +$as_echo "$lt_shell_append" >&6; } + + +if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then + lt_unset=unset +else + lt_unset=false +fi + + + + + +# test EBCDIC or ASCII +case `echo X|tr X '\101'` in + A) # ASCII based system + # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr + lt_SP2NL='tr \040 \012' + lt_NL2SP='tr \015\012 \040\040' + ;; + *) # EBCDIC based system + lt_SP2NL='tr \100 \n' + lt_NL2SP='tr \r\n \100\100' + ;; +esac + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5 +$as_echo_n "checking for $LD option to reload object files... " >&6; } +if ${lt_cv_ld_reload_flag+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ld_reload_flag='-r' +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5 +$as_echo "$lt_cv_ld_reload_flag" >&6; } +reload_flag=$lt_cv_ld_reload_flag +case $reload_flag in +"" | " "*) ;; +*) reload_flag=" $reload_flag" ;; +esac +reload_cmds='$LD$reload_flag -o $output$reload_objs' +case $host_os in + darwin*) + if test "$GCC" = yes; then + reload_cmds='$LTCC $LTCFLAGS -nostdlib ${wl}-r -o $output$reload_objs' + else + reload_cmds='$LD$reload_flag -o $output$reload_objs' + fi + ;; +esac + + + + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args. +set dummy ${ac_tool_prefix}objdump; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OBJDUMP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OBJDUMP"; then + ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OBJDUMP=$ac_cv_prog_OBJDUMP +if test -n "$OBJDUMP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5 +$as_echo "$OBJDUMP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OBJDUMP"; then + ac_ct_OBJDUMP=$OBJDUMP + # Extract the first word of "objdump", so it can be a program name with args. +set dummy objdump; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OBJDUMP"; then + ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OBJDUMP="objdump" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP +if test -n "$ac_ct_OBJDUMP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5 +$as_echo "$ac_ct_OBJDUMP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OBJDUMP" = x; then + OBJDUMP="false" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OBJDUMP=$ac_ct_OBJDUMP + fi +else + OBJDUMP="$ac_cv_prog_OBJDUMP" +fi + +test -z "$OBJDUMP" && OBJDUMP=objdump + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5 +$as_echo_n "checking how to recognize dependent libraries... " >&6; } +if ${lt_cv_deplibs_check_method+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_file_magic_cmd='$MAGIC_CMD' +lt_cv_file_magic_test_file= +lt_cv_deplibs_check_method='unknown' +# Need to set the preceding variable on all platforms that support +# interlibrary dependencies. +# 'none' -- dependencies not supported. +# `unknown' -- same as none, but documents that we really don't know. +# 'pass_all' -- all dependencies passed with no checks. +# 'test_compile' -- check by making test program. +# 'file_magic [[regex]]' -- check by looking for files in library path +# which responds to the $file_magic_cmd with a given extended regex. +# If you have `file' or equivalent on your system and you're not sure +# whether `pass_all' will *always* work, you probably want this one. + +case $host_os in +aix[4-9]*) + lt_cv_deplibs_check_method=pass_all + ;; + +beos*) + lt_cv_deplibs_check_method=pass_all + ;; + +bsdi[45]*) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)' + lt_cv_file_magic_cmd='/usr/bin/file -L' + lt_cv_file_magic_test_file=/shlib/libc.so + ;; + +cygwin*) + # func_win32_libid is a shell function defined in ltmain.sh + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + ;; + +mingw* | pw32*) + # Base MSYS/MinGW do not provide the 'file' command needed by + # func_win32_libid shell function, so use a weaker test based on 'objdump', + # unless we find 'file', for example because we are cross-compiling. + # func_win32_libid assumes BSD nm, so disallow it if using MS dumpbin. + if ( test "$lt_cv_nm_interface" = "BSD nm" && file / ) >/dev/null 2>&1; then + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + else + lt_cv_deplibs_check_method='file_magic file format pei*-i386(.*architecture: i386)?' + lt_cv_file_magic_cmd='$OBJDUMP -f' + fi + ;; + +cegcc*) + # use the weaker test based on 'objdump'. See mingw*. + lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?' + lt_cv_file_magic_cmd='$OBJDUMP -f' + ;; + +darwin* | rhapsody*) + lt_cv_deplibs_check_method=pass_all + ;; + +freebsd* | dragonfly*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + case $host_cpu in + i*86 ) + # Not sure whether the presence of OpenBSD here was a mistake. + # Let's accept both of them until this is cleared up. + lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*` + ;; + esac + else + lt_cv_deplibs_check_method=pass_all + fi + ;; + +gnu*) + lt_cv_deplibs_check_method=pass_all + ;; + +haiku*) + lt_cv_deplibs_check_method=pass_all + ;; + +hpux10.20* | hpux11*) + lt_cv_file_magic_cmd=/usr/bin/file + case $host_cpu in + ia64*) + lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64' + lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so + ;; + hppa*64*) + lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]' + lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl + ;; + *) + lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library' + lt_cv_file_magic_test_file=/usr/lib/libc.sl + ;; + esac + ;; + +interix[3-9]*) + # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$' + ;; + +irix5* | irix6* | nonstopux*) + case $LD in + *-32|*"-32 ") libmagic=32-bit;; + *-n32|*"-n32 ") libmagic=N32;; + *-64|*"-64 ") libmagic=64-bit;; + *) libmagic=never-match;; + esac + lt_cv_deplibs_check_method=pass_all + ;; + +# This must be Linux ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi) + lt_cv_deplibs_check_method=pass_all + ;; + +netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$' + fi + ;; + +newos6*) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=/usr/lib/libnls.so + ;; + +*nto* | *qnx*) + lt_cv_deplibs_check_method=pass_all + ;; + +openbsd*) + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' + fi + ;; + +osf3* | osf4* | osf5*) + lt_cv_deplibs_check_method=pass_all + ;; + +rdos*) + lt_cv_deplibs_check_method=pass_all + ;; + +solaris*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv4 | sysv4.3*) + case $host_vendor in + motorola) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]' + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*` + ;; + ncr) + lt_cv_deplibs_check_method=pass_all + ;; + sequent) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )' + ;; + sni) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib" + lt_cv_file_magic_test_file=/lib/libc.so + ;; + siemens) + lt_cv_deplibs_check_method=pass_all + ;; + pc) + lt_cv_deplibs_check_method=pass_all + ;; + esac + ;; + +tpf*) + lt_cv_deplibs_check_method=pass_all + ;; +esac + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5 +$as_echo "$lt_cv_deplibs_check_method" >&6; } +file_magic_cmd=$lt_cv_file_magic_cmd +deplibs_check_method=$lt_cv_deplibs_check_method +test -z "$deplibs_check_method" && deplibs_check_method=unknown + + + + + + + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args. +set dummy ${ac_tool_prefix}ar; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_AR+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$AR"; then + ac_cv_prog_AR="$AR" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_AR="${ac_tool_prefix}ar" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +AR=$ac_cv_prog_AR +if test -n "$AR"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5 +$as_echo "$AR" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_AR"; then + ac_ct_AR=$AR + # Extract the first word of "ar", so it can be a program name with args. +set dummy ar; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_AR+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_AR"; then + ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_AR="ar" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_AR=$ac_cv_prog_ac_ct_AR +if test -n "$ac_ct_AR"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5 +$as_echo "$ac_ct_AR" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_AR" = x; then + AR="false" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + AR=$ac_ct_AR + fi +else + AR="$ac_cv_prog_AR" +fi + +test -z "$AR" && AR=ar +test -z "$AR_FLAGS" && AR_FLAGS=cru + + + + + + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. +set dummy ${ac_tool_prefix}strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$STRIP"; then + ac_cv_prog_STRIP="$STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_STRIP="${ac_tool_prefix}strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +STRIP=$ac_cv_prog_STRIP +if test -n "$STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5 +$as_echo "$STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_STRIP"; then + ac_ct_STRIP=$STRIP + # Extract the first word of "strip", so it can be a program name with args. +set dummy strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_STRIP"; then + ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_STRIP="strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP +if test -n "$ac_ct_STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5 +$as_echo "$ac_ct_STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_STRIP" = x; then + STRIP=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + STRIP=$ac_ct_STRIP + fi +else + STRIP="$ac_cv_prog_STRIP" +fi + +test -z "$STRIP" && STRIP=: + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args. +set dummy ${ac_tool_prefix}ranlib; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_RANLIB+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$RANLIB"; then + ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +RANLIB=$ac_cv_prog_RANLIB +if test -n "$RANLIB"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5 +$as_echo "$RANLIB" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_RANLIB"; then + ac_ct_RANLIB=$RANLIB + # Extract the first word of "ranlib", so it can be a program name with args. +set dummy ranlib; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_RANLIB+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_RANLIB"; then + ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_RANLIB="ranlib" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB +if test -n "$ac_ct_RANLIB"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5 +$as_echo "$ac_ct_RANLIB" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_RANLIB" = x; then + RANLIB=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + RANLIB=$ac_ct_RANLIB + fi +else + RANLIB="$ac_cv_prog_RANLIB" +fi + +test -z "$RANLIB" && RANLIB=: + + + + + + +# Determine commands to create old-style static archives. +old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs' +old_postinstall_cmds='chmod 644 $oldlib' +old_postuninstall_cmds= + +if test -n "$RANLIB"; then + case $host_os in + openbsd*) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$oldlib" + ;; + *) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$oldlib" + ;; + esac + old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib" +fi + +case $host_os in + darwin*) + lock_old_archive_extraction=yes ;; + *) + lock_old_archive_extraction=no ;; +esac + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +# If no C compiler was specified, use CC. +LTCC=${LTCC-"$CC"} + +# If no C compiler flags were specified, use CFLAGS. +LTCFLAGS=${LTCFLAGS-"$CFLAGS"} + +# Allow CC to be a program name with arguments. +compiler=$CC + + +# Check for command to grab the raw symbol name followed by C symbol from nm. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5 +$as_echo_n "checking command to parse $NM output from $compiler object... " >&6; } +if ${lt_cv_sys_global_symbol_pipe+:} false; then : + $as_echo_n "(cached) " >&6 +else + +# These are sane defaults that work on at least a few old systems. +# [They come from Ultrix. What could be older than Ultrix?!! ;)] + +# Character class describing NM global symbol codes. +symcode='[BCDEGRST]' + +# Regexp to match symbols that can be accessed directly from C. +sympat='\([_A-Za-z][_A-Za-z0-9]*\)' + +# Define system-specific variables. +case $host_os in +aix*) + symcode='[BCDT]' + ;; +cygwin* | mingw* | pw32* | cegcc*) + symcode='[ABCDGISTW]' + ;; +hpux*) + if test "$host_cpu" = ia64; then + symcode='[ABCDEGRST]' + fi + ;; +irix* | nonstopux*) + symcode='[BCDEGRST]' + ;; +osf*) + symcode='[BCDEGQRST]' + ;; +solaris*) + symcode='[BDRT]' + ;; +sco3.2v5*) + symcode='[DT]' + ;; +sysv4.2uw2*) + symcode='[DT]' + ;; +sysv5* | sco5v6* | unixware* | OpenUNIX*) + symcode='[ABDT]' + ;; +sysv4) + symcode='[DFNSTU]' + ;; +esac + +# If we're using GNU nm, then use its standard symbol codes. +case `$NM -V 2>&1` in +*GNU* | *'with BFD'*) + symcode='[ABCDGIRSTW]' ;; +esac + +# Transform an extracted symbol line into a proper C declaration. +# Some systems (esp. on ia64) link data and code symbols differently, +# so use this general approach. +lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'" + +# Transform an extracted symbol line into symbol name and symbol address +lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([^ ]*\) $/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/ {\"\2\", (void *) \&\2},/p'" +lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([^ ]*\) $/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \(lib[^ ]*\)$/ {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/ {\"lib\2\", (void *) \&\2},/p'" + +# Handle CRLF in mingw tool chain +opt_cr= +case $build_os in +mingw*) + opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp + ;; +esac + +# Try without a prefix underscore, then with it. +for ac_symprfx in "" "_"; do + + # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. + symxfrm="\\1 $ac_symprfx\\2 \\2" + + # Write the raw and C identifiers. + if test "$lt_cv_nm_interface" = "MS dumpbin"; then + # Fake it for dumpbin and say T for any non-static function + # and D for any global variable. + # Also find C++ and __fastcall symbols from MSVC++, + # which start with @ or ?. + lt_cv_sys_global_symbol_pipe="$AWK '"\ +" {last_section=section; section=\$ 3};"\ +" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ +" \$ 0!~/External *\|/{next};"\ +" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ +" {if(hide[section]) next};"\ +" {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\ +" {split(\$ 0, a, /\||\r/); split(a[2], s)};"\ +" s[1]~/^[@?]/{print s[1], s[1]; next};"\ +" s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\ +" ' prfx=^$ac_symprfx" + else + lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($symcode$symcode*\)[ ][ ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" + fi + + # Check to see that the pipe works correctly. + pipe_works=no + + rm -f conftest* + cat > conftest.$ac_ext <<_LT_EOF +#ifdef __cplusplus +extern "C" { +#endif +char nm_test_var; +void nm_test_func(void); +void nm_test_func(void){} +#ifdef __cplusplus +} +#endif +int main(){nm_test_var='a';nm_test_func();return(0);} +_LT_EOF + + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + # Now try to grab the symbols. + nlist=conftest.nm + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5 + (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s "$nlist"; then + # Try sorting and uniquifying the output. + if sort "$nlist" | uniq > "$nlist"T; then + mv -f "$nlist"T "$nlist" + else + rm -f "$nlist"T + fi + + # Make sure that we snagged all the symbols we need. + if $GREP ' nm_test_var$' "$nlist" >/dev/null; then + if $GREP ' nm_test_func$' "$nlist" >/dev/null; then + cat <<_LT_EOF > conftest.$ac_ext +#ifdef __cplusplus +extern "C" { +#endif + +_LT_EOF + # Now generate the symbol file. + eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' + + cat <<_LT_EOF >> conftest.$ac_ext + +/* The mapping between symbol names and symbols. */ +const struct { + const char *name; + void *address; +} +lt__PROGRAM__LTX_preloaded_symbols[] = +{ + { "@PROGRAM@", (void *) 0 }, +_LT_EOF + $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/ {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext + cat <<\_LT_EOF >> conftest.$ac_ext + {0, (void *) 0} +}; + +/* This works around a problem in FreeBSD linker */ +#ifdef FREEBSD_WORKAROUND +static const void *lt_preloaded_setup() { + return lt__PROGRAM__LTX_preloaded_symbols; +} +#endif + +#ifdef __cplusplus +} +#endif +_LT_EOF + # Now try linking the two files. + mv conftest.$ac_objext conftstm.$ac_objext + lt_save_LIBS="$LIBS" + lt_save_CFLAGS="$CFLAGS" + LIBS="conftstm.$ac_objext" + CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag" + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 + (eval $ac_link) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s conftest${ac_exeext}; then + pipe_works=yes + fi + LIBS="$lt_save_LIBS" + CFLAGS="$lt_save_CFLAGS" + else + echo "cannot find nm_test_func in $nlist" >&5 + fi + else + echo "cannot find nm_test_var in $nlist" >&5 + fi + else + echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5 + fi + else + echo "$progname: failed program was:" >&5 + cat conftest.$ac_ext >&5 + fi + rm -rf conftest* conftst* + + # Do not use the global_symbol_pipe unless it works. + if test "$pipe_works" = yes; then + break + else + lt_cv_sys_global_symbol_pipe= + fi +done + +fi + +if test -z "$lt_cv_sys_global_symbol_pipe"; then + lt_cv_sys_global_symbol_to_cdecl= +fi +if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5 +$as_echo "failed" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 +$as_echo "ok" >&6; } +fi + + + + + + + + + + + + + + + + + + + + + + +# Check whether --enable-libtool-lock was given. +if test "${enable_libtool_lock+set}" = set; then : + enableval=$enable_libtool_lock; +fi + +test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes + +# Some flags need to be propagated to the compiler or linker for good +# libtool support. +case $host in +ia64-*-hpux*) + # Find out which ABI we are using. + echo 'int i;' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + case `/usr/bin/file conftest.$ac_objext` in + *ELF-32*) + HPUX_IA64_MODE="32" + ;; + *ELF-64*) + HPUX_IA64_MODE="64" + ;; + esac + fi + rm -rf conftest* + ;; +*-*-irix6*) + # Find out which ABI we are using. + echo '#line '$LINENO' "configure"' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + if test "$lt_cv_prog_gnu_ld" = yes; then + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -melf32bsmip" + ;; + *N32*) + LD="${LD-ld} -melf32bmipn32" + ;; + *64-bit*) + LD="${LD-ld} -melf64bmip" + ;; + esac + else + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -32" + ;; + *N32*) + LD="${LD-ld} -n32" + ;; + *64-bit*) + LD="${LD-ld} -64" + ;; + esac + fi + fi + rm -rf conftest* + ;; + +x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \ +s390*-*linux*|s390*-*tpf*|sparc*-*linux*) + # Find out which ABI we are using. + echo 'int i;' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + case `/usr/bin/file conftest.o` in + *32-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_i386_fbsd" + ;; + x86_64-*linux*) + case `/usr/bin/file conftest.o` in + *x86-64*) + LD="${LD-ld} -m elf32_x86_64" + ;; + *) + LD="${LD-ld} -m elf_i386" + ;; + esac + ;; + powerpc64le-*linux*) + LD="${LD-ld} -m elf32lppclinux" + ;; + powerpc64-*linux*) + LD="${LD-ld} -m elf32ppclinux" + ;; + s390x-*linux*) + LD="${LD-ld} -m elf_s390" + ;; + sparc64-*linux*) + LD="${LD-ld} -m elf32_sparc" + ;; + esac + ;; + *64-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_x86_64_fbsd" + ;; + x86_64-*linux*) + LD="${LD-ld} -m elf_x86_64" + ;; + powerpcle-*linux*) + LD="${LD-ld} -m elf64lppc" + ;; + powerpc-*linux*) + LD="${LD-ld} -m elf64ppc" + ;; + s390*-*linux*|s390*-*tpf*) + LD="${LD-ld} -m elf64_s390" + ;; + sparc*-*linux*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; + +*-*-sco3.2v5*) + # On SCO OpenServer 5, we need -belf to get full-featured binaries. + SAVE_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -belf" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5 +$as_echo_n "checking whether the C compiler needs -belf... " >&6; } +if ${lt_cv_cc_needs_belf+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + lt_cv_cc_needs_belf=yes +else + lt_cv_cc_needs_belf=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5 +$as_echo "$lt_cv_cc_needs_belf" >&6; } + if test x"$lt_cv_cc_needs_belf" != x"yes"; then + # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf + CFLAGS="$SAVE_CFLAGS" + fi + ;; +sparc*-*solaris*) + # Find out which ABI we are using. + echo 'int i;' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + case `/usr/bin/file conftest.o` in + *64-bit*) + case $lt_cv_prog_gnu_ld in + yes*) LD="${LD-ld} -m elf64_sparc" ;; + *) + if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then + LD="${LD-ld} -64" + fi + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; +esac + +need_locks="$enable_libtool_lock" + + + case $host_os in + rhapsody* | darwin*) + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args. +set dummy ${ac_tool_prefix}dsymutil; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_DSYMUTIL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$DSYMUTIL"; then + ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +DSYMUTIL=$ac_cv_prog_DSYMUTIL +if test -n "$DSYMUTIL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5 +$as_echo "$DSYMUTIL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_DSYMUTIL"; then + ac_ct_DSYMUTIL=$DSYMUTIL + # Extract the first word of "dsymutil", so it can be a program name with args. +set dummy dsymutil; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_DSYMUTIL"; then + ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_DSYMUTIL="dsymutil" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL +if test -n "$ac_ct_DSYMUTIL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5 +$as_echo "$ac_ct_DSYMUTIL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_DSYMUTIL" = x; then + DSYMUTIL=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + DSYMUTIL=$ac_ct_DSYMUTIL + fi +else + DSYMUTIL="$ac_cv_prog_DSYMUTIL" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args. +set dummy ${ac_tool_prefix}nmedit; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_NMEDIT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$NMEDIT"; then + ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +NMEDIT=$ac_cv_prog_NMEDIT +if test -n "$NMEDIT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5 +$as_echo "$NMEDIT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_NMEDIT"; then + ac_ct_NMEDIT=$NMEDIT + # Extract the first word of "nmedit", so it can be a program name with args. +set dummy nmedit; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_NMEDIT"; then + ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_NMEDIT="nmedit" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT +if test -n "$ac_ct_NMEDIT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5 +$as_echo "$ac_ct_NMEDIT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_NMEDIT" = x; then + NMEDIT=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + NMEDIT=$ac_ct_NMEDIT + fi +else + NMEDIT="$ac_cv_prog_NMEDIT" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args. +set dummy ${ac_tool_prefix}lipo; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_LIPO+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$LIPO"; then + ac_cv_prog_LIPO="$LIPO" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_LIPO="${ac_tool_prefix}lipo" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +LIPO=$ac_cv_prog_LIPO +if test -n "$LIPO"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5 +$as_echo "$LIPO" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_LIPO"; then + ac_ct_LIPO=$LIPO + # Extract the first word of "lipo", so it can be a program name with args. +set dummy lipo; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_LIPO+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_LIPO"; then + ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_LIPO="lipo" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO +if test -n "$ac_ct_LIPO"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5 +$as_echo "$ac_ct_LIPO" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_LIPO" = x; then + LIPO=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + LIPO=$ac_ct_LIPO + fi +else + LIPO="$ac_cv_prog_LIPO" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args. +set dummy ${ac_tool_prefix}otool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OTOOL"; then + ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OTOOL="${ac_tool_prefix}otool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OTOOL=$ac_cv_prog_OTOOL +if test -n "$OTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5 +$as_echo "$OTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OTOOL"; then + ac_ct_OTOOL=$OTOOL + # Extract the first word of "otool", so it can be a program name with args. +set dummy otool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OTOOL"; then + ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OTOOL="otool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL +if test -n "$ac_ct_OTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5 +$as_echo "$ac_ct_OTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OTOOL" = x; then + OTOOL=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OTOOL=$ac_ct_OTOOL + fi +else + OTOOL="$ac_cv_prog_OTOOL" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args. +set dummy ${ac_tool_prefix}otool64; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OTOOL64+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OTOOL64"; then + ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OTOOL64=$ac_cv_prog_OTOOL64 +if test -n "$OTOOL64"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5 +$as_echo "$OTOOL64" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OTOOL64"; then + ac_ct_OTOOL64=$OTOOL64 + # Extract the first word of "otool64", so it can be a program name with args. +set dummy otool64; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OTOOL64"; then + ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OTOOL64="otool64" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64 +if test -n "$ac_ct_OTOOL64"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5 +$as_echo "$ac_ct_OTOOL64" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OTOOL64" = x; then + OTOOL64=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OTOOL64=$ac_ct_OTOOL64 + fi +else + OTOOL64="$ac_cv_prog_OTOOL64" +fi + + + + + + + + + + + + + + + + + + + + + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5 +$as_echo_n "checking for -single_module linker flag... " >&6; } +if ${lt_cv_apple_cc_single_mod+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_apple_cc_single_mod=no + if test -z "${LT_MULTI_MODULE}"; then + # By default we will add the -single_module flag. You can override + # by either setting the environment variable LT_MULTI_MODULE + # non-empty at configure time, or by adding -multi_module to the + # link flags. + rm -rf libconftest.dylib* + echo "int foo(void){return 1;}" > conftest.c + echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ +-dynamiclib -Wl,-single_module conftest.c" >&5 + $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ + -dynamiclib -Wl,-single_module conftest.c 2>conftest.err + _lt_result=$? + if test -f libconftest.dylib && test ! -s conftest.err && test $_lt_result = 0; then + lt_cv_apple_cc_single_mod=yes + else + cat conftest.err >&5 + fi + rm -rf libconftest.dylib* + rm -f conftest.* + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5 +$as_echo "$lt_cv_apple_cc_single_mod" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5 +$as_echo_n "checking for -exported_symbols_list linker flag... " >&6; } +if ${lt_cv_ld_exported_symbols_list+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ld_exported_symbols_list=no + save_LDFLAGS=$LDFLAGS + echo "_main" > conftest.sym + LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + lt_cv_ld_exported_symbols_list=yes +else + lt_cv_ld_exported_symbols_list=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS="$save_LDFLAGS" + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5 +$as_echo "$lt_cv_ld_exported_symbols_list" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5 +$as_echo_n "checking for -force_load linker flag... " >&6; } +if ${lt_cv_ld_force_load+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ld_force_load=no + cat > conftest.c << _LT_EOF +int forced_loaded() { return 2;} +_LT_EOF + echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5 + $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5 + echo "$AR cru libconftest.a conftest.o" >&5 + $AR cru libconftest.a conftest.o 2>&5 + cat > conftest.c << _LT_EOF +int main() { return 0;} +_LT_EOF + echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5 + $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err + _lt_result=$? + if test -f conftest && test ! -s conftest.err && test $_lt_result = 0 && $GREP forced_load conftest 2>&1 >/dev/null; then + lt_cv_ld_force_load=yes + else + cat conftest.err >&5 + fi + rm -f conftest.err libconftest.a conftest conftest.c + rm -rf conftest.dSYM + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5 +$as_echo "$lt_cv_ld_force_load" >&6; } + # Allow for Darwin 4-7 (macOS 10.0-10.3) although these are not expect to + # build without first building modern cctools / linker. + case $host_cpu-$host_os in + *-rhapsody* | *-darwin1.[012]) + _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;; + *-darwin1.*) + _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;; + *-darwin*) + # darwin 5.x (macOS 10.1) onwards we only need to adjust when the + # deployment target is forced to an earlier version. + case ${MACOSX_DEPLOYMENT_TARGET-UNSET},$host in + UNSET,*-darwin[89]*|UNSET,*-darwin[12][0123456789]*) + ;; + 10.[012][,.]*) + _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' + ;; + *) + ;; + esac + ;; + esac + if test "$lt_cv_apple_cc_single_mod" = "yes"; then + _lt_dar_single_mod='$single_module' + fi + if test "$lt_cv_ld_exported_symbols_list" = "yes"; then + _lt_dar_export_syms=' ${wl}-exported_symbols_list,$output_objdir/${libname}-symbols.expsym' + else + _lt_dar_export_syms='~$NMEDIT -s $output_objdir/${libname}-symbols.expsym ${lib}' + fi + if test "$DSYMUTIL" != ":" && test "$lt_cv_ld_force_load" = "no"; then + _lt_dsymutil='~$DSYMUTIL $lib || :' + else + _lt_dsymutil= + fi + ;; + esac + +for ac_header in dlfcn.h +do : + ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default +" +if test "x$ac_cv_header_dlfcn_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_DLFCN_H 1 +_ACEOF + +fi + +done + + + + + +# Set options + + + + enable_dlopen=no + + + enable_win32_dll=no + + + # Check whether --enable-shared was given. +if test "${enable_shared+set}" = set; then : + enableval=$enable_shared; p=${PACKAGE-default} + case $enableval in + yes) enable_shared=yes ;; + no) enable_shared=no ;; + *) + enable_shared=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," + for pkg in $enableval; do + IFS="$lt_save_ifs" + if test "X$pkg" = "X$p"; then + enable_shared=yes + fi + done + IFS="$lt_save_ifs" + ;; + esac +else + enable_shared=yes +fi + + + + + + + + + + # Check whether --enable-static was given. +if test "${enable_static+set}" = set; then : + enableval=$enable_static; p=${PACKAGE-default} + case $enableval in + yes) enable_static=yes ;; + no) enable_static=no ;; + *) + enable_static=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," + for pkg in $enableval; do + IFS="$lt_save_ifs" + if test "X$pkg" = "X$p"; then + enable_static=yes + fi + done + IFS="$lt_save_ifs" + ;; + esac +else + enable_static=yes +fi + + + + + + + + + + +# Check whether --with-pic was given. +if test "${with_pic+set}" = set; then : + withval=$with_pic; pic_mode="$withval" +else + pic_mode=default +fi + + +test -z "$pic_mode" && pic_mode=default + + + + + + + + # Check whether --enable-fast-install was given. +if test "${enable_fast_install+set}" = set; then : + enableval=$enable_fast_install; p=${PACKAGE-default} + case $enableval in + yes) enable_fast_install=yes ;; + no) enable_fast_install=no ;; + *) + enable_fast_install=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," + for pkg in $enableval; do + IFS="$lt_save_ifs" + if test "X$pkg" = "X$p"; then + enable_fast_install=yes + fi + done + IFS="$lt_save_ifs" + ;; + esac +else + enable_fast_install=yes +fi + + + + + + + + + + + +# This can be used to rebuild libtool when needed +LIBTOOL_DEPS="$ltmain" + +# Always use our own libtool. +LIBTOOL='$(SHELL) $(top_builddir)/libtool' + + + + + + + + + + + + + + + + + + + + + + + + + + +test -z "$LN_S" && LN_S="ln -s" + + + + + + + + + + + + + + +if test -n "${ZSH_VERSION+set}" ; then + setopt NO_GLOB_SUBST +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5 +$as_echo_n "checking for objdir... " >&6; } +if ${lt_cv_objdir+:} false; then : + $as_echo_n "(cached) " >&6 +else + rm -f .libs 2>/dev/null +mkdir .libs 2>/dev/null +if test -d .libs; then + lt_cv_objdir=.libs +else + # MS-DOS does not allow filenames that begin with a dot. + lt_cv_objdir=_libs +fi +rmdir .libs 2>/dev/null +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5 +$as_echo "$lt_cv_objdir" >&6; } +objdir=$lt_cv_objdir + + + + + +cat >>confdefs.h <<_ACEOF +#define LT_OBJDIR "$lt_cv_objdir/" +_ACEOF + + + + +case $host_os in +aix3*) + # AIX sometimes has problems with the GCC collect2 program. For some + # reason, if we set the COLLECT_NAMES environment variable, the problems + # vanish in a puff of smoke. + if test "X${COLLECT_NAMES+set}" != Xset; then + COLLECT_NAMES= + export COLLECT_NAMES + fi + ;; +esac + +# Global variables: +ofile=libtool +can_build_shared=yes + +# All known linkers require a `.a' archive for static linking (except MSVC, +# which needs '.lib'). +libext=a + +with_gnu_ld="$lt_cv_prog_gnu_ld" + +old_CC="$CC" +old_CFLAGS="$CFLAGS" + +# Set sane defaults for various variables +test -z "$CC" && CC=cc +test -z "$LTCC" && LTCC=$CC +test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS +test -z "$LD" && LD=ld +test -z "$ac_objext" && ac_objext=o + +for cc_temp in $compiler""; do + case $cc_temp in + compile | *[\\/]compile | ccache | *[\\/]ccache ) ;; + distcc | *[\\/]distcc | purify | *[\\/]purify ) ;; + \-*) ;; + *) break;; + esac +done +cc_basename=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"` + + +# Only perform the check for file, if the check method requires it +test -z "$MAGIC_CMD" && MAGIC_CMD=file +case $deplibs_check_method in +file_magic*) + if test "$file_magic_cmd" = '$MAGIC_CMD'; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5 +$as_echo_n "checking for ${ac_tool_prefix}file... " >&6; } +if ${lt_cv_path_MAGIC_CMD+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $MAGIC_CMD in +[\\/*] | ?:[\\/]*) + lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path. + ;; +*) + lt_save_MAGIC_CMD="$MAGIC_CMD" + lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + ac_dummy="/usr/bin$PATH_SEPARATOR$PATH" + for ac_dir in $ac_dummy; do + IFS="$lt_save_ifs" + test -z "$ac_dir" && ac_dir=. + if test -f $ac_dir/${ac_tool_prefix}file; then + lt_cv_path_MAGIC_CMD="$ac_dir/${ac_tool_prefix}file" + if test -n "$file_magic_test_file"; then + case $deplibs_check_method in + "file_magic "*) + file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"` + MAGIC_CMD="$lt_cv_path_MAGIC_CMD" + if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | + $EGREP "$file_magic_regex" > /dev/null; then + : + else + cat <<_LT_EOF 1>&2 + +*** Warning: the command libtool uses to detect shared libraries, +*** $file_magic_cmd, produces output that libtool cannot recognize. +*** The result is that libtool may fail to recognize shared libraries +*** as such. This will affect the creation of libtool libraries that +*** depend on shared libraries, but programs linked with such libtool +*** libraries will work regardless of this problem. Nevertheless, you +*** may want to report the problem to your system manager and/or to +*** bug-libtool@gnu.org + +_LT_EOF + fi ;; + esac + fi + break + fi + done + IFS="$lt_save_ifs" + MAGIC_CMD="$lt_save_MAGIC_CMD" + ;; +esac +fi + +MAGIC_CMD="$lt_cv_path_MAGIC_CMD" +if test -n "$MAGIC_CMD"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5 +$as_echo "$MAGIC_CMD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + + + +if test -z "$lt_cv_path_MAGIC_CMD"; then + if test -n "$ac_tool_prefix"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for file" >&5 +$as_echo_n "checking for file... " >&6; } +if ${lt_cv_path_MAGIC_CMD+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $MAGIC_CMD in +[\\/*] | ?:[\\/]*) + lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path. + ;; +*) + lt_save_MAGIC_CMD="$MAGIC_CMD" + lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + ac_dummy="/usr/bin$PATH_SEPARATOR$PATH" + for ac_dir in $ac_dummy; do + IFS="$lt_save_ifs" + test -z "$ac_dir" && ac_dir=. + if test -f $ac_dir/file; then + lt_cv_path_MAGIC_CMD="$ac_dir/file" + if test -n "$file_magic_test_file"; then + case $deplibs_check_method in + "file_magic "*) + file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"` + MAGIC_CMD="$lt_cv_path_MAGIC_CMD" + if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | + $EGREP "$file_magic_regex" > /dev/null; then + : + else + cat <<_LT_EOF 1>&2 + +*** Warning: the command libtool uses to detect shared libraries, +*** $file_magic_cmd, produces output that libtool cannot recognize. +*** The result is that libtool may fail to recognize shared libraries +*** as such. This will affect the creation of libtool libraries that +*** depend on shared libraries, but programs linked with such libtool +*** libraries will work regardless of this problem. Nevertheless, you +*** may want to report the problem to your system manager and/or to +*** bug-libtool@gnu.org + +_LT_EOF + fi ;; + esac + fi + break + fi + done + IFS="$lt_save_ifs" + MAGIC_CMD="$lt_save_MAGIC_CMD" + ;; +esac +fi + +MAGIC_CMD="$lt_cv_path_MAGIC_CMD" +if test -n "$MAGIC_CMD"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5 +$as_echo "$MAGIC_CMD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + else + MAGIC_CMD=: + fi +fi + + fi + ;; +esac + +# Use C for the default configuration in the libtool script + +lt_save_CC="$CC" +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + +# Source file extension for C test sources. +ac_ext=c + +# Object file extension for compiled C test sources. +objext=o +objext=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="int some_variable = 0;" + +# Code to be used in simple link tests +lt_simple_link_test_code='int main(){return(0);}' + + + + + + + +# If no C compiler was specified, use CC. +LTCC=${LTCC-"$CC"} + +# If no C compiler flags were specified, use CFLAGS. +LTCFLAGS=${LTCFLAGS-"$CFLAGS"} + +# Allow CC to be a program name with arguments. +compiler=$CC + +# Save the default compiler, since it gets overwritten when the other +# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP. +compiler_DEFAULT=$CC + +# save warnings/boilerplate of simple test code +ac_outfile=conftest.$ac_objext +echo "$lt_simple_compile_test_code" >conftest.$ac_ext +eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_compiler_boilerplate=`cat conftest.err` +$RM conftest* + +ac_outfile=conftest.$ac_objext +echo "$lt_simple_link_test_code" >conftest.$ac_ext +eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_linker_boilerplate=`cat conftest.err` +$RM -r conftest* + + +## CAVEAT EMPTOR: +## There is no encapsulation within the following macros, do not change +## the running order or otherwise move them around unless you know exactly +## what you are doing... +if test -n "$compiler"; then + +lt_prog_compiler_no_builtin_flag= + +if test "$GCC" = yes; then + case $cc_basename in + nvcc*) + lt_prog_compiler_no_builtin_flag=' -Xcompiler -fno-builtin' ;; + *) + lt_prog_compiler_no_builtin_flag=' -fno-builtin' ;; + esac + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5 +$as_echo_n "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; } +if ${lt_cv_prog_compiler_rtti_exceptions+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_rtti_exceptions=no + ac_outfile=conftest.$ac_objext + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + lt_compiler_flag="-fno-rtti -fno-exceptions" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + # The option is referenced via a variable to avoid confusing sed. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>conftest.err) + ac_status=$? + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s "$ac_outfile"; then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings other than the usual output. + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler_rtti_exceptions=yes + fi + fi + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5 +$as_echo "$lt_cv_prog_compiler_rtti_exceptions" >&6; } + +if test x"$lt_cv_prog_compiler_rtti_exceptions" = xyes; then + lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions" +else + : +fi + +fi + + + + + + + lt_prog_compiler_wl= +lt_prog_compiler_pic= +lt_prog_compiler_static= + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5 +$as_echo_n "checking for $compiler option to produce PIC... " >&6; } + + if test "$GCC" = yes; then + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_static='-static' + + case $host_os in + aix*) + # All AIX code is PIC. + if test "$host_cpu" = ia64; then + # AIX 5 now supports IA64 processor + lt_prog_compiler_static='-Bstatic' + fi + lt_prog_compiler_pic='-fPIC' + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + lt_prog_compiler_pic='-fPIC' + ;; + m68k) + # FIXME: we need at least 68020 code to build shared libraries, but + # adding the `-m68020' flag to GCC prevents building anything better, + # like `-m68040'. + lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4' + ;; + esac + ;; + + beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) + # PIC is the default for these OSes. + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + # Although the cygwin gcc ignores -fPIC, still need this for old-style + # (--disable-auto-import) libraries + lt_prog_compiler_pic='-DDLL_EXPORT' + ;; + + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + lt_prog_compiler_pic='-fno-common' + ;; + + haiku*) + # PIC is the default for Haiku. + # The "-static" flag exists, but is broken. + lt_prog_compiler_static= + ;; + + hpux*) + # PIC is the default for 64-bit PA HP-UX, but not for 32-bit + # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + case $host_cpu in + hppa*64*) + # +Z the default + ;; + *) + lt_prog_compiler_pic='-fPIC' + ;; + esac + ;; + + interix[3-9]*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + + msdosdjgpp*) + # Just because we use GCC doesn't mean we suddenly get shared libraries + # on systems that don't support them. + lt_prog_compiler_can_build_shared=no + enable_shared=no + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + lt_prog_compiler_pic='-fPIC -shared' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + lt_prog_compiler_pic=-Kconform_pic + fi + ;; + + *) + lt_prog_compiler_pic='-fPIC' + ;; + esac + + case $cc_basename in + nvcc*) # Cuda Compiler Driver 2.2 + lt_prog_compiler_wl='-Xlinker ' + lt_prog_compiler_pic='-Xcompiler -fPIC' + ;; + esac + else + # PORTME Check for flag to pass linker flags through the system compiler. + case $host_os in + aix*) + lt_prog_compiler_wl='-Wl,' + if test "$host_cpu" = ia64; then + # AIX 5 now supports IA64 processor + lt_prog_compiler_static='-Bstatic' + else + lt_prog_compiler_static='-bnso -bI:/lib/syscalls.exp' + fi + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + lt_prog_compiler_pic='-DDLL_EXPORT' + ;; + + hpux9* | hpux10* | hpux11*) + lt_prog_compiler_wl='-Wl,' + # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but + # not for PA HP-UX. + case $host_cpu in + hppa*64*|ia64*) + # +Z the default + ;; + *) + lt_prog_compiler_pic='+Z' + ;; + esac + # Is there a better lt_prog_compiler_static that works with the bundled CC? + lt_prog_compiler_static='${wl}-a ${wl}archive' + ;; + + irix5* | irix6* | nonstopux*) + lt_prog_compiler_wl='-Wl,' + # PIC (with -KPIC) is the default. + lt_prog_compiler_static='-non_shared' + ;; + + linux* | k*bsd*-gnu | kopensolaris*-gnu) + case $cc_basename in + # old Intel for x86_64 which still supported -KPIC. + ecc*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-static' + ;; + # icc used to be incompatible with GCC. + # ICC 10 doesn't accept -KPIC any more. + icc* | ifort*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fPIC' + lt_prog_compiler_static='-static' + ;; + # Lahey Fortran 8.1. + lf95*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='--shared' + lt_prog_compiler_static='--static' + ;; + pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group compilers (*not* the Pentium gcc compiler, + # which looks to be a dead project) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fpic' + lt_prog_compiler_static='-Bstatic' + ;; + ccc*) + lt_prog_compiler_wl='-Wl,' + # All Alpha code is PIC. + lt_prog_compiler_static='-non_shared' + ;; + xl* | bgxl* | bgf* | mpixl*) + # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-qpic' + lt_prog_compiler_static='-qstaticlink' + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ F* | *Sun*Fortran*) + # Sun Fortran 8.3 passes all unrecognized flags to the linker + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + lt_prog_compiler_wl='' + ;; + *Sun\ C*) + # Sun C 5.9 + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + lt_prog_compiler_wl='-Wl,' + ;; + esac + ;; + esac + ;; + + newsos6) + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + lt_prog_compiler_pic='-fPIC -shared' + ;; + + osf3* | osf4* | osf5*) + lt_prog_compiler_wl='-Wl,' + # All OSF/1 code is PIC. + lt_prog_compiler_static='-non_shared' + ;; + + rdos*) + lt_prog_compiler_static='-non_shared' + ;; + + solaris*) + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + case $cc_basename in + f77* | f90* | f95*) + lt_prog_compiler_wl='-Qoption ld ';; + *) + lt_prog_compiler_wl='-Wl,';; + esac + ;; + + sunos4*) + lt_prog_compiler_wl='-Qoption ld ' + lt_prog_compiler_pic='-PIC' + lt_prog_compiler_static='-Bstatic' + ;; + + sysv4 | sysv4.2uw2* | sysv4.3*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + ;; + + sysv4*MP*) + if test -d /usr/nec ;then + lt_prog_compiler_pic='-Kconform_pic' + lt_prog_compiler_static='-Bstatic' + fi + ;; + + sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + ;; + + unicos*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_can_build_shared=no + ;; + + uts4*) + lt_prog_compiler_pic='-pic' + lt_prog_compiler_static='-Bstatic' + ;; + + *) + lt_prog_compiler_can_build_shared=no + ;; + esac + fi + +case $host_os in + # For platforms which do not support PIC, -DPIC is meaningless: + *djgpp*) + lt_prog_compiler_pic= + ;; + *) + lt_prog_compiler_pic="$lt_prog_compiler_pic -DPIC" + ;; +esac +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_prog_compiler_pic" >&5 +$as_echo "$lt_prog_compiler_pic" >&6; } + + + + + + +# +# Check to make sure the PIC flag actually works. +# +if test -n "$lt_prog_compiler_pic"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5 +$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic works... " >&6; } +if ${lt_cv_prog_compiler_pic_works+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_pic_works=no + ac_outfile=conftest.$ac_objext + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + lt_compiler_flag="$lt_prog_compiler_pic -DPIC" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + # The option is referenced via a variable to avoid confusing sed. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>conftest.err) + ac_status=$? + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s "$ac_outfile"; then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings other than the usual output. + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler_pic_works=yes + fi + fi + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5 +$as_echo "$lt_cv_prog_compiler_pic_works" >&6; } + +if test x"$lt_cv_prog_compiler_pic_works" = xyes; then + case $lt_prog_compiler_pic in + "" | " "*) ;; + *) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;; + esac +else + lt_prog_compiler_pic= + lt_prog_compiler_can_build_shared=no +fi + +fi + + + + + + +# +# Check to make sure the static flag actually works. +# +wl=$lt_prog_compiler_wl eval lt_tmp_static_flag=\"$lt_prog_compiler_static\" +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5 +$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; } +if ${lt_cv_prog_compiler_static_works+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_static_works=no + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS $lt_tmp_static_flag" + echo "$lt_simple_link_test_code" > conftest.$ac_ext + if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then + # The linker can only warn and ignore the option if not recognized + # So say no if there are warnings + if test -s conftest.err; then + # Append any errors to the config.log. + cat conftest.err 1>&5 + $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler_static_works=yes + fi + else + lt_cv_prog_compiler_static_works=yes + fi + fi + $RM -r conftest* + LDFLAGS="$save_LDFLAGS" + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5 +$as_echo "$lt_cv_prog_compiler_static_works" >&6; } + +if test x"$lt_cv_prog_compiler_static_works" = xyes; then + : +else + lt_prog_compiler_static= +fi + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5 +$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; } +if ${lt_cv_prog_compiler_c_o+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_c_o=no + $RM -r conftest 2>/dev/null + mkdir conftest + cd conftest + mkdir out + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + lt_compiler_flag="-o out/conftest2.$ac_objext" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>out/conftest.err) + ac_status=$? + cat out/conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s out/conftest2.$ac_objext + then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp + $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 + if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then + lt_cv_prog_compiler_c_o=yes + fi + fi + chmod u+w . 2>&5 + $RM conftest* + # SGI C++ compiler will create directory out/ii_files/ for + # template instantiation + test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files + $RM out/* && rmdir out + cd .. + $RM -r conftest + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5 +$as_echo "$lt_cv_prog_compiler_c_o" >&6; } + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5 +$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; } +if ${lt_cv_prog_compiler_c_o+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_c_o=no + $RM -r conftest 2>/dev/null + mkdir conftest + cd conftest + mkdir out + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + lt_compiler_flag="-o out/conftest2.$ac_objext" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>out/conftest.err) + ac_status=$? + cat out/conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s out/conftest2.$ac_objext + then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp + $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 + if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then + lt_cv_prog_compiler_c_o=yes + fi + fi + chmod u+w . 2>&5 + $RM conftest* + # SGI C++ compiler will create directory out/ii_files/ for + # template instantiation + test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files + $RM out/* && rmdir out + cd .. + $RM -r conftest + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5 +$as_echo "$lt_cv_prog_compiler_c_o" >&6; } + + + + +hard_links="nottested" +if test "$lt_cv_prog_compiler_c_o" = no && test "$need_locks" != no; then + # do not overwrite the value of need_locks provided by the user + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5 +$as_echo_n "checking if we can lock with hard links... " >&6; } + hard_links=yes + $RM conftest* + ln conftest.a conftest.b 2>/dev/null && hard_links=no + touch conftest.a + ln conftest.a conftest.b 2>&5 || hard_links=no + ln conftest.a conftest.b 2>/dev/null && hard_links=no + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5 +$as_echo "$hard_links" >&6; } + if test "$hard_links" = no; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5 +$as_echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;} + need_locks=warn + fi +else + need_locks=no +fi + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5 +$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; } + + runpath_var= + allow_undefined_flag= + always_export_symbols=no + archive_cmds= + archive_expsym_cmds= + compiler_needs_object=no + enable_shared_with_static_runtimes=no + export_dynamic_flag_spec= + export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + hardcode_automatic=no + hardcode_direct=no + hardcode_direct_absolute=no + hardcode_libdir_flag_spec= + hardcode_libdir_flag_spec_ld= + hardcode_libdir_separator= + hardcode_minus_L=no + hardcode_shlibpath_var=unsupported + inherit_rpath=no + link_all_deplibs=unknown + module_cmds= + module_expsym_cmds= + old_archive_from_new_cmds= + old_archive_from_expsyms_cmds= + thread_safe_flag_spec= + whole_archive_flag_spec= + # include_expsyms should be a list of space-separated symbols to be *always* + # included in the symbol list + include_expsyms= + # exclude_expsyms can be an extended regexp of symbols to exclude + # it will be wrapped by ` (' and `)$', so one must not match beginning or + # end of line. Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc', + # as well as any symbol that contains `d'. + exclude_expsyms='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*' + # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out + # platforms (ab)use it in PIC code, but their linkers get confused if + # the symbol is explicitly referenced. Since portable code cannot + # rely on this symbol name, it's probably fine to never include it in + # preloaded symbol tables. + # Exclude shared library initialization/finalization symbols. + extract_expsyms_cmds= + + case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + # FIXME: the MSVC++ port hasn't been tested in a loooong time + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + if test "$GCC" != yes; then + with_gnu_ld=no + fi + ;; + interix*) + # we just hope/assume this is gcc and not c89 (= MSVC++) + with_gnu_ld=yes + ;; + openbsd*) + with_gnu_ld=no + ;; + esac + + ld_shlibs=yes + + # On some targets, GNU ld is compatible enough with the native linker + # that we're better off using the native interface for both. + lt_use_gnu_ld_interface=no + if test "$with_gnu_ld" = yes; then + case $host_os in + aix*) + # The AIX port of GNU ld has always aspired to compatibility + # with the native linker. However, as the warning in the GNU ld + # block says, versions before 2.19.5* couldn't really create working + # shared libraries, regardless of the interface used. + case `$LD -v 2>&1` in + *\ \(GNU\ Binutils\)\ 2.19.5*) ;; + *\ \(GNU\ Binutils\)\ 2.[2-9]*) ;; + *\ \(GNU\ Binutils\)\ [3-9]*) ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + fi + + if test "$lt_use_gnu_ld_interface" = yes; then + # If archive_cmds runs LD, not CC, wlarc should be empty + wlarc='${wl}' + + # Set some defaults for GNU ld with shared library support. These + # are reset later if shared libraries are not supported. Putting them + # here allows them to be overridden if necessary. + runpath_var=LD_RUN_PATH + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + export_dynamic_flag_spec='${wl}--export-dynamic' + # ancient GNU ld didn't support --whole-archive et. al. + if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then + whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive' + else + whole_archive_flag_spec= + fi + supports_anon_versioning=no + case `$LD -v 2>&1` in + *GNU\ gold*) supports_anon_versioning=yes ;; + *\ [01].* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11 + *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ... + *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ... + *\ 2.11.*) ;; # other 2.11 versions + *) supports_anon_versioning=yes ;; + esac + + # See if GNU ld supports shared libraries. + case $host_os in + aix[3-9]*) + # On AIX/PPC, the GNU linker is very broken + if test "$host_cpu" != ia64; then + ld_shlibs=no + cat <<_LT_EOF 1>&2 + +*** Warning: the GNU linker, at least up to release 2.19, is reported +*** to be unable to reliably create shared libraries on AIX. +*** Therefore, libtool is disabling shared libraries support. If you +*** really care for shared libraries, you may want to install binutils +*** 2.20 or above, or modify your PATH so that a non-GNU linker is found. +*** You will then need to restart the configuration process. + +_LT_EOF + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='' + ;; + m68k) + archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_minus_L=yes + ;; + esac + ;; + + beos*) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + allow_undefined_flag=unsupported + # Joseph Beckenbach <jrb3@best.com> says some releases of gcc + # support --undefined. This deserves some investigation. FIXME + archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + else + ld_shlibs=no + fi + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless, + # as there is no search path for DLLs. + hardcode_libdir_flag_spec='-L$libdir' + export_dynamic_flag_spec='${wl}--export-all-symbols' + allow_undefined_flag=unsupported + always_export_symbols=no + enable_shared_with_static_runtimes=yes + export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols' + + if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + # If the export-symbols file already is a .def file (1st line + # is EXPORTS), use it as is; otherwise, prepend... + archive_expsym_cmds='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then + cp $export_symbols $output_objdir/$soname.def; + else + echo EXPORTS > $output_objdir/$soname.def; + cat $export_symbols >> $output_objdir/$soname.def; + fi~ + $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + else + ld_shlibs=no + fi + ;; + + haiku*) + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + link_all_deplibs=yes + ;; + + interix[3-9]*) + hardcode_direct=no + hardcode_shlibpath_var=no + hardcode_libdir_flag_spec='${wl}-rpath,$libdir' + export_dynamic_flag_spec='${wl}-E' + # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. + # Instead, shared libraries are loaded at an image base (0x10000000 by + # default) and relocated if they conflict, which is a slow very memory + # consuming and fragmenting process. To avoid this, we pick a random, + # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link + # time. Moving up from 0x10000000 also allows more sbrk(2) space. + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + ;; + + gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu | uclinuxfdpiceabi) + tmp_diet=no + if test "$host_os" = linux-dietlibc; then + case $cc_basename in + diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn) + esac + fi + if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \ + && test "$tmp_diet" = no + then + tmp_addflag=' $pic_flag' + tmp_sharedflag='-shared' + case $cc_basename,$host_cpu in + pgcc*) # Portland Group C compiler + whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + tmp_addflag=' $pic_flag' + ;; + pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group f77 and f90 compilers + whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + tmp_addflag=' $pic_flag -Mnomain' ;; + ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64 + tmp_addflag=' -i_dynamic' ;; + efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64 + tmp_addflag=' -i_dynamic -nofor_main' ;; + ifc* | ifort*) # Intel Fortran compiler + tmp_addflag=' -nofor_main' ;; + lf95*) # Lahey Fortran 8.1 + whole_archive_flag_spec= + tmp_sharedflag='--shared' ;; + xl[cC]* | bgxl[cC]* | mpixl[cC]*) # IBM XL C 8.0 on PPC (deal with xlf below) + tmp_sharedflag='-qmkshrobj' + tmp_addflag= ;; + nvcc*) # Cuda Compiler Driver 2.2 + whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + compiler_needs_object=yes + ;; + esac + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) # Sun C 5.9 + whole_archive_flag_spec='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive' + compiler_needs_object=yes + tmp_sharedflag='-G' ;; + *Sun\ F*) # Sun Fortran 8.3 + tmp_sharedflag='-G' ;; + esac + archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + + if test "x$supports_anon_versioning" = xyes; then + archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib' + fi + + case $cc_basename in + xlf* | bgf* | bgxlf* | mpixlf*) + # IBM XL Fortran 10.1 on PPC cannot create shared libs itself + whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive' + hardcode_libdir_flag_spec= + hardcode_libdir_flag_spec_ld='-rpath $libdir' + archive_cmds='$LD -shared $libobjs $deplibs $compiler_flags -soname $soname -o $lib' + if test "x$supports_anon_versioning" = xyes; then + archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $LD -shared $libobjs $deplibs $compiler_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib' + fi + ;; + esac + else + ld_shlibs=no + fi + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib' + wlarc= + else + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + fi + ;; + + solaris*) + if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then + ld_shlibs=no + cat <<_LT_EOF 1>&2 + +*** Warning: The releases 2.8.* of the GNU linker cannot reliably +*** create shared libraries on Solaris systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.9.1 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + else + ld_shlibs=no + fi + ;; + + sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*) + case `$LD -v 2>&1` in + *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*) + ld_shlibs=no + cat <<_LT_EOF 1>&2 + +*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not +*** reliably create shared libraries on SCO systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.16.91.0.3 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + ;; + *) + # For security reasons, it is highly recommended that you always + # use absolute paths for naming shared libraries, and exclude the + # DT_RUNPATH tag from executables and libraries. But doing so + # requires that you compile everything twice, which is a pain. + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + else + ld_shlibs=no + fi + ;; + esac + ;; + + sunos4*) + archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags' + wlarc= + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + *) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' + else + ld_shlibs=no + fi + ;; + esac + + if test "$ld_shlibs" = no; then + runpath_var= + hardcode_libdir_flag_spec= + export_dynamic_flag_spec= + whole_archive_flag_spec= + fi + else + # PORTME fill in a description of your system's linker (not GNU ld) + case $host_os in + aix3*) + allow_undefined_flag=unsupported + always_export_symbols=yes + archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname' + # Note: this linker hardcodes the directories in LIBPATH if there + # are no directories specified by -L. + hardcode_minus_L=yes + if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then + # Neither direct hardcoding nor static linking is supported with a + # broken collect2. + hardcode_direct=unsupported + fi + ;; + + aix[4-9]*) + if test "$host_cpu" = ia64; then + # On IA64, the linker does run time linking by default, so we don't + # have to do anything special. + aix_use_runtimelinking=no + exp_sym_flag='-Bexport' + no_entry_flag="" + else + # If we're using GNU nm, then we don't want the "-C" option. + # -C means demangle to AIX nm, but means don't demangle with GNU nm + # Also, AIX nm treats weak defined symbols like other global + # defined symbols, whereas GNU nm marks them as "W". + if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then + export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols' + else + export_symbols_cmds='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "L")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols' + fi + aix_use_runtimelinking=no + + # Test if we are trying to use run time linking or normal + # AIX style linking. If -brtl is somewhere in LDFLAGS, we + # need to do runtime linking. + case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*) + for ld_flag in $LDFLAGS; do + if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then + aix_use_runtimelinking=yes + break + fi + done + ;; + esac + + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + archive_cmds='' + hardcode_direct=yes + hardcode_direct_absolute=yes + hardcode_libdir_separator=':' + link_all_deplibs=yes + file_list_spec='${wl}-f,' + + if test "$GCC" = yes; then + case $host_os in aix4.[012]|aix4.[012].*) + # We only want to do this on AIX 4.2 and lower, the check + # below for broken collect2 doesn't work under 4.3+ + collect2name=`${CC} -print-prog-name=collect2` + if test -f "$collect2name" && + strings "$collect2name" | $GREP resolve_lib_name >/dev/null + then + # We have reworked collect2 + : + else + # We have old collect2 + hardcode_direct=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + hardcode_minus_L=yes + hardcode_libdir_flag_spec='-L$libdir' + hardcode_libdir_separator= + fi + ;; + esac + shared_flag='-shared' + if test "$aix_use_runtimelinking" = yes; then + shared_flag="$shared_flag "'${wl}-G' + fi + else + # not using gcc + if test "$host_cpu" = ia64; then + # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release + # chokes on -Wl,-G. The following line is correct: + shared_flag='-G' + else + if test "$aix_use_runtimelinking" = yes; then + shared_flag='${wl}-G' + else + shared_flag='${wl}-bM:SRE' + fi + fi + fi + + export_dynamic_flag_spec='${wl}-bexpall' + # It seems that -bexpall does not export symbols beginning with + # underscore (_), so it is better to generate a list of symbols to export. + always_export_symbols=yes + if test "$aix_use_runtimelinking" = yes; then + # Warning - without using the other runtime loading flags (-brtl), + # -berok will link without error, but may produce a broken library. + allow_undefined_flag='-berok' + # Determine the default libpath from the value encoded in an + # empty executable. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + +lt_aix_libpath_sed=' + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\(.*\)$/\1/ + p + } + }' +aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` +# Check for a 64-bit object if we didn't find anything. +if test -z "$aix_libpath"; then + aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` +fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi + + hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath" + archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag" + else + if test "$host_cpu" = ia64; then + hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib' + allow_undefined_flag="-z nodefs" + archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols" + else + # Determine the default libpath from the value encoded in an + # empty executable. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + +lt_aix_libpath_sed=' + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\(.*\)$/\1/ + p + } + }' +aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` +# Check for a 64-bit object if we didn't find anything. +if test -z "$aix_libpath"; then + aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` +fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi + + hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath" + # Warning - without using the other run time loading flags, + # -berok will link without error, but may produce a broken library. + no_undefined_flag=' ${wl}-bernotok' + allow_undefined_flag=' ${wl}-berok' + if test "$with_gnu_ld" = yes; then + # We only use this code for GNU lds that support --whole-archive. + whole_archive_flag_spec='${wl}--whole-archive$convenience ${wl}--no-whole-archive' + else + # Exported symbols can be pulled into shared objects from archives + whole_archive_flag_spec='$convenience' + fi + archive_cmds_need_lc=yes + # This is similar to how AIX traditionally builds its shared libraries. + archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname' + fi + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' + archive_expsym_cmds='' + ;; + m68k) + archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_minus_L=yes + ;; + esac + ;; + + bsdi[45]*) + export_dynamic_flag_spec=-rdynamic + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + # hardcode_libdir_flag_spec is actually meaningless, as there is + # no search path for DLLs. + hardcode_libdir_flag_spec=' ' + allow_undefined_flag=unsupported + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=".dll" + # FIXME: Setting linknames here is a bad hack. + archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames=' + # The linker will automatically build a .lib file if we build a DLL. + old_archive_from_new_cmds='true' + # FIXME: Should let the user specify the lib program. + old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs' + fix_srcfile_path='`cygpath -w "$srcfile"`' + enable_shared_with_static_runtimes=yes + ;; + + darwin* | rhapsody*) + + + archive_cmds_need_lc=no + hardcode_direct=no + hardcode_automatic=yes + hardcode_shlibpath_var=unsupported + if test "$lt_cv_ld_force_load" = "yes"; then + whole_archive_flag_spec='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' + else + whole_archive_flag_spec='' + fi + link_all_deplibs=yes + allow_undefined_flag="$_lt_dar_allow_undefined" + case $cc_basename in + ifort*) _lt_dar_can_shared=yes ;; + *) _lt_dar_can_shared=$GCC ;; + esac + if test "$_lt_dar_can_shared" = "yes"; then + output_verbose_link_cmd=func_echo_all + archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}" + module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}" + archive_expsym_cmds="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}" + module_expsym_cmds="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}" + + else + ld_shlibs=no + fi + + ;; + + dgux*) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_shlibpath_var=no + ;; + + # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor + # support. Future versions do this automatically, but an explicit c++rt0.o + # does not break anything, and helps significantly (at the cost of a little + # extra space). + freebsd2.2*) + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o' + hardcode_libdir_flag_spec='-R$libdir' + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + # Unfortunately, older versions of FreeBSD 2 do not have this feature. + freebsd2.*) + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=yes + hardcode_minus_L=yes + hardcode_shlibpath_var=no + ;; + + # FreeBSD 3 and greater uses gcc -shared to do shared libraries. + freebsd* | dragonfly*) + archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags' + hardcode_libdir_flag_spec='-R$libdir' + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + hpux9*) + if test "$GCC" = yes; then + archive_cmds='$RM $output_objdir/$soname~$CC -shared -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' + else + archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' + fi + hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir' + hardcode_libdir_separator=: + hardcode_direct=yes + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + hardcode_minus_L=yes + export_dynamic_flag_spec='${wl}-E' + ;; + + hpux10*) + if test "$GCC" = yes && test "$with_gnu_ld" = no; then + archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' + fi + if test "$with_gnu_ld" = no; then + hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir' + hardcode_libdir_flag_spec_ld='+b $libdir' + hardcode_libdir_separator=: + hardcode_direct=yes + hardcode_direct_absolute=yes + export_dynamic_flag_spec='${wl}-E' + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + hardcode_minus_L=yes + fi + ;; + + hpux11*) + if test "$GCC" = yes && test "$with_gnu_ld" = no; then + case $host_cpu in + hppa*64*) + archive_cmds='$CC -shared ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + else + case $host_cpu in + hppa*64*) + archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + + # Older versions of the 11.00 compiler do not understand -b yet + # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC understands -b" >&5 +$as_echo_n "checking if $CC understands -b... " >&6; } +if ${lt_cv_prog_compiler__b+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler__b=no + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -b" + echo "$lt_simple_link_test_code" > conftest.$ac_ext + if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then + # The linker can only warn and ignore the option if not recognized + # So say no if there are warnings + if test -s conftest.err; then + # Append any errors to the config.log. + cat conftest.err 1>&5 + $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler__b=yes + fi + else + lt_cv_prog_compiler__b=yes + fi + fi + $RM -r conftest* + LDFLAGS="$save_LDFLAGS" + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler__b" >&5 +$as_echo "$lt_cv_prog_compiler__b" >&6; } + +if test x"$lt_cv_prog_compiler__b" = xyes; then + archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' +else + archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' +fi + + ;; + esac + fi + if test "$with_gnu_ld" = no; then + hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir' + hardcode_libdir_separator=: + + case $host_cpu in + hppa*64*|ia64*) + hardcode_direct=no + hardcode_shlibpath_var=no + ;; + *) + hardcode_direct=yes + hardcode_direct_absolute=yes + export_dynamic_flag_spec='${wl}-E' + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + hardcode_minus_L=yes + ;; + esac + fi + ;; + + irix5* | irix6* | nonstopux*) + if test "$GCC" = yes; then + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + # Try to use the -exported_symbol ld option, if it does not + # work, assume that -exports_file does not work either and + # implicitly export all symbols. + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int foo(void) {} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib' + +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS="$save_LDFLAGS" + else + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib' + fi + archive_cmds_need_lc='no' + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + hardcode_libdir_separator=: + inherit_rpath=yes + link_all_deplibs=yes + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out + else + archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF + fi + hardcode_libdir_flag_spec='-R$libdir' + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + newsos6) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=yes + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + hardcode_libdir_separator=: + hardcode_shlibpath_var=no + ;; + + *nto* | *qnx*) + ;; + + openbsd*) + if test -f /usr/libexec/ld.so; then + hardcode_direct=yes + hardcode_shlibpath_var=no + hardcode_direct_absolute=yes + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then + archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols' + hardcode_libdir_flag_spec='${wl}-rpath,$libdir' + export_dynamic_flag_spec='${wl}-E' + else + case $host_os in + openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*) + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' + hardcode_libdir_flag_spec='-R$libdir' + ;; + *) + archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + hardcode_libdir_flag_spec='${wl}-rpath,$libdir' + ;; + esac + fi + else + ld_shlibs=no + fi + ;; + + os2*) + hardcode_libdir_flag_spec='-L$libdir' + hardcode_minus_L=yes + allow_undefined_flag=unsupported + archive_cmds='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~echo DATA >> $output_objdir/$libname.def~echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def' + old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def' + ;; + + osf3*) + if test "$GCC" = yes; then + allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*' + archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + else + allow_undefined_flag=' -expect_unresolved \*' + archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + fi + archive_cmds_need_lc='no' + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + hardcode_libdir_separator=: + ;; + + osf4* | osf5*) # as osf3* with the addition of -msym flag + if test "$GCC" = yes; then + allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*' + archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' + hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + else + allow_undefined_flag=' -expect_unresolved \*' + archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib' + archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~ + $CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp' + + # Both c and cxx compiler support -rpath directly + hardcode_libdir_flag_spec='-rpath $libdir' + fi + archive_cmds_need_lc='no' + hardcode_libdir_separator=: + ;; + + solaris*) + no_undefined_flag=' -z defs' + if test "$GCC" = yes; then + wlarc='${wl}' + archive_cmds='$CC -shared ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -shared ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + else + case `$CC -V 2>&1` in + *"Compilers 5.0"*) + wlarc='' + archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags' + archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp' + ;; + *) + wlarc='${wl}' + archive_cmds='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + ;; + esac + fi + hardcode_libdir_flag_spec='-R$libdir' + hardcode_shlibpath_var=no + case $host_os in + solaris2.[0-5] | solaris2.[0-5].*) ;; + *) + # The compiler driver will combine and reorder linker options, + # but understands `-z linker_flag'. GCC discards it without `$wl', + # but is careful enough not to reorder. + # Supported since Solaris 2.6 (maybe 2.5.1?) + if test "$GCC" = yes; then + whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract' + else + whole_archive_flag_spec='-z allextract$convenience -z defaultextract' + fi + ;; + esac + link_all_deplibs=yes + ;; + + sunos4*) + if test "x$host_vendor" = xsequent; then + # Use $CC to link under sequent, because it throws in some extra .o + # files that make .init and .fini sections work. + archive_cmds='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags' + fi + hardcode_libdir_flag_spec='-L$libdir' + hardcode_direct=yes + hardcode_minus_L=yes + hardcode_shlibpath_var=no + ;; + + sysv4) + case $host_vendor in + sni) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=yes # is this really true??? + ;; + siemens) + ## LD is ld it makes a PLAMLIB + ## CC just makes a GrossModule. + archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags' + reload_cmds='$CC -r -o $output$reload_objs' + hardcode_direct=no + ;; + motorola) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=no #Motorola manual says yes, but my tests say they lie + ;; + esac + runpath_var='LD_RUN_PATH' + hardcode_shlibpath_var=no + ;; + + sysv4.3*) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_shlibpath_var=no + export_dynamic_flag_spec='-Bexport' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_shlibpath_var=no + runpath_var=LD_RUN_PATH + hardcode_runpath_var=yes + ld_shlibs=yes + fi + ;; + + sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*) + no_undefined_flag='${wl}-z,text' + archive_cmds_need_lc=no + hardcode_shlibpath_var=no + runpath_var='LD_RUN_PATH' + + if test "$GCC" = yes; then + archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + sysv5* | sco3.2v5* | sco5v6*) + # Note: We can NOT use -z defs as we might desire, because we do not + # link with -lc, and that would cause any symbols used from libc to + # always be unresolved, which means just about no library would + # ever link correctly. If we're not using GNU ld we use -z text + # though, which does catch some bad symbols but isn't as heavy-handed + # as -z defs. + no_undefined_flag='${wl}-z,text' + allow_undefined_flag='${wl}-z,nodefs' + archive_cmds_need_lc=no + hardcode_shlibpath_var=no + hardcode_libdir_flag_spec='${wl}-R,$libdir' + hardcode_libdir_separator=':' + link_all_deplibs=yes + export_dynamic_flag_spec='${wl}-Bexport' + runpath_var='LD_RUN_PATH' + + if test "$GCC" = yes; then + archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + uts4*) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_shlibpath_var=no + ;; + + *) + ld_shlibs=no + ;; + esac + + if test x$host_vendor = xsni; then + case $host in + sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*) + export_dynamic_flag_spec='${wl}-Blargedynsym' + ;; + esac + fi + fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5 +$as_echo "$ld_shlibs" >&6; } +test "$ld_shlibs" = no && can_build_shared=no + +with_gnu_ld=$with_gnu_ld + + + + + + + + + + + + + + + +# +# Do we need to explicitly link libc? +# +case "x$archive_cmds_need_lc" in +x|xyes) + # Assume -lc should be added + archive_cmds_need_lc=yes + + if test "$enable_shared" = yes && test "$GCC" = yes; then + case $archive_cmds in + *'~'*) + # FIXME: we may have to deal with multi-command sequences. + ;; + '$CC '*) + # Test whether the compiler implicitly links with -lc since on some + # systems, -lgcc has to come before -lc. If gcc already passes -lc + # to ld, don't add -lc before -lgcc. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5 +$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; } +if ${lt_cv_archive_cmds_need_lc+:} false; then : + $as_echo_n "(cached) " >&6 +else + $RM conftest* + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } 2>conftest.err; then + soname=conftest + lib=conftest + libobjs=conftest.$ac_objext + deplibs= + wl=$lt_prog_compiler_wl + pic_flag=$lt_prog_compiler_pic + compiler_flags=-v + linker_flags=-v + verstring= + output_objdir=. + libname=conftest + lt_save_allow_undefined_flag=$allow_undefined_flag + allow_undefined_flag= + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5 + (eval $archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + then + lt_cv_archive_cmds_need_lc=no + else + lt_cv_archive_cmds_need_lc=yes + fi + allow_undefined_flag=$lt_save_allow_undefined_flag + else + cat conftest.err 1>&5 + fi + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc" >&5 +$as_echo "$lt_cv_archive_cmds_need_lc" >&6; } + archive_cmds_need_lc=$lt_cv_archive_cmds_need_lc + ;; + esac + fi + ;; +esac + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5 +$as_echo_n "checking dynamic linker characteristics... " >&6; } + +if test "$GCC" = yes; then + case $host_os in + darwin*) lt_awk_arg="/^libraries:/,/LR/" ;; + *) lt_awk_arg="/^libraries:/" ;; + esac + case $host_os in + mingw* | cegcc*) lt_sed_strip_eq="s,=\([A-Za-z]:\),\1,g" ;; + *) lt_sed_strip_eq="s,=/,/,g" ;; + esac + lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq` + case $lt_search_path_spec in + *\;*) + # if the path contains ";" then we assume it to be the separator + # otherwise default to the standard path separator (i.e. ":") - it is + # assumed that no part of a normal pathname contains ";" but that should + # okay in the real world where ";" in dirpaths is itself problematic. + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'` + ;; + *) + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"` + ;; + esac + # Ok, now we have the path, separated by spaces, we can step through it + # and add multilib dir if necessary. + lt_tmp_lt_search_path_spec= + lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null` + for lt_sys_path in $lt_search_path_spec; do + if test -d "$lt_sys_path/$lt_multi_os_dir"; then + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir" + else + test -d "$lt_sys_path" && \ + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path" + fi + done + lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk ' +BEGIN {RS=" "; FS="/|\n";} { + lt_foo=""; + lt_count=0; + for (lt_i = NF; lt_i > 0; lt_i--) { + if ($lt_i != "" && $lt_i != ".") { + if ($lt_i == "..") { + lt_count++; + } else { + if (lt_count == 0) { + lt_foo="/" $lt_i lt_foo; + } else { + lt_count--; + } + } + } + } + if (lt_foo != "") { lt_freq[lt_foo]++; } + if (lt_freq[lt_foo] == 1) { print lt_foo; } +}'` + # AWK program above erroneously prepends '/' to C:/dos/paths + # for these hosts. + case $host_os in + mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\ + $SED 's,/\([A-Za-z]:\),\1,g'` ;; + esac + sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP` +else + sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" +fi +library_names_spec= +libname_spec='lib$name' +soname_spec= +shrext_cmds=".so" +postinstall_cmds= +postuninstall_cmds= +finish_cmds= +finish_eval= +shlibpath_var= +shlibpath_overrides_runpath=unknown +version_type=none +dynamic_linker="$host_os ld.so" +sys_lib_dlsearch_path_spec="/lib /usr/lib" +need_lib_prefix=unknown +hardcode_into_libs=no + +# when you set need_version to no, make sure it does not cause -set_version +# flags to be left without arguments +need_version=unknown + +case $host_os in +aix3*) + version_type=linux + library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a' + shlibpath_var=LIBPATH + + # AIX 3 has no versioning support, so we append a major version to the name. + soname_spec='${libname}${release}${shared_ext}$major' + ;; + +aix[4-9]*) + version_type=linux + need_lib_prefix=no + need_version=no + hardcode_into_libs=yes + if test "$host_cpu" = ia64; then + # AIX 5 supports IA64 + library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + else + # With GCC up to 2.95.x, collect2 would create an import file + # for dependence libraries. The import file would start with + # the line `#! .'. This would cause the generated library to + # depend on `.', always an invalid library. This was fixed in + # development snapshots of GCC prior to 3.0. + case $host_os in + aix4 | aix4.[01] | aix4.[01].*) + if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' + echo ' yes ' + echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then + : + else + can_build_shared=no + fi + ;; + esac + # AIX (on Power*) has no versioning support, so currently we can not hardcode correct + # soname into executable. Probably we can add versioning support to + # collect2, so additional links can be useful in future. + if test "$aix_use_runtimelinking" = yes; then + # If using run time linking (on AIX 4.2 or later) use lib<name>.so + # instead of lib<name>.a to let people know that these are not + # typical AIX shared libraries. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + else + # We preserve .a as extension for shared libraries through AIX4.2 + # and later when we are not doing run time linking. + library_names_spec='${libname}${release}.a $libname.a' + soname_spec='${libname}${release}${shared_ext}$major' + fi + shlibpath_var=LIBPATH + fi + ;; + +amigaos*) + case $host_cpu in + powerpc) + # Since July 2007 AmigaOS4 officially supports .so libraries. + # When compiling the executable, add -use-dynld -Lsobjs: to the compileline. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + ;; + m68k) + library_names_spec='$libname.ixlibrary $libname.a' + # Create ${libname}_ixlibrary.a entries in /sys/libs. + finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done' + ;; + esac + ;; + +beos*) + library_names_spec='${libname}${shared_ext}' + dynamic_linker="$host_os ld.so" + shlibpath_var=LIBRARY_PATH + ;; + +bsdi[45]*) + version_type=linux + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" + sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" + # the default ld.so.conf also contains /usr/contrib/lib and + # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow + # libtool to hard-code these into programs + ;; + +cygwin* | mingw* | pw32* | cegcc*) + version_type=windows + shrext_cmds=".dll" + need_version=no + need_lib_prefix=no + + case $GCC,$host_os in + yes,cygwin* | yes,mingw* | yes,pw32* | yes,cegcc*) + library_names_spec='$libname.dll.a' + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \${file}`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + + case $host_os in + cygwin*) + # Cygwin DLLs use 'cyg' prefix rather than 'lib' + soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}' + + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api" + ;; + mingw* | cegcc*) + # MinGW DLLs use traditional 'lib' prefix + soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}' + ;; + pw32*) + # pw32 DLLs use 'pw' prefix rather than 'lib' + library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}' + ;; + esac + ;; + + *) + library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib' + ;; + esac + dynamic_linker='Win32 ld.exe' + # FIXME: first we should search . and the directory the executable is in + shlibpath_var=PATH + ;; + +darwin* | rhapsody*) + dynamic_linker="$host_os dyld" + version_type=darwin + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext' + soname_spec='${libname}${release}${major}$shared_ext' + shlibpath_overrides_runpath=yes + shlibpath_var=DYLD_LIBRARY_PATH + shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`' + + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib" + sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib' + ;; + +dgux*) + version_type=linux + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +freebsd* | dragonfly*) + # DragonFly does not have aout. When/if they implement a new + # versioning mechanism, adjust this. + if test -x /usr/bin/objformat; then + objformat=`/usr/bin/objformat` + else + case $host_os in + freebsd[23].*) objformat=aout ;; + *) objformat=elf ;; + esac + fi + version_type=freebsd-$objformat + case $version_type in + freebsd-elf*) + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}' + need_version=no + need_lib_prefix=no + ;; + freebsd-*) + library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix' + need_version=yes + ;; + esac + shlibpath_var=LD_LIBRARY_PATH + case $host_os in + freebsd2.*) + shlibpath_overrides_runpath=yes + ;; + freebsd3.[01]* | freebsdelf3.[01]*) + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + freebsd3.[2-9]* | freebsdelf3.[2-9]* | \ + freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1) + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + *) # from 4.6 on, and DragonFly + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + esac + ;; + +haiku*) + version_type=linux + need_lib_prefix=no + need_version=no + dynamic_linker="$host_os runtime_loader" + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LIBRARY_PATH + shlibpath_overrides_runpath=yes + sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/beos/system/lib' + hardcode_into_libs=yes + ;; + +hpux9* | hpux10* | hpux11*) + # Give a soname corresponding to the major version so that dld.sl refuses to + # link against other versions. + version_type=sunos + need_lib_prefix=no + need_version=no + case $host_cpu in + ia64*) + shrext_cmds='.so' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.so" + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + if test "X$HPUX_IA64_MODE" = X32; then + sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" + else + sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" + fi + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + hppa*64*) + shrext_cmds='.sl' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.sl" + shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + *) + shrext_cmds='.sl' + dynamic_linker="$host_os dld.sl" + shlibpath_var=SHLIB_PATH + shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + ;; + esac + # HP-UX runs *really* slowly unless shared libraries are mode 555, ... + postinstall_cmds='chmod 555 $lib' + # or fails outright, so override atomically: + install_override_mode=555 + ;; + +interix[3-9]*) + version_type=linux + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +irix5* | irix6* | nonstopux*) + case $host_os in + nonstopux*) version_type=nonstopux ;; + *) + if test "$lt_cv_prog_gnu_ld" = yes; then + version_type=linux + else + version_type=irix + fi ;; + esac + need_lib_prefix=no + need_version=no + soname_spec='${libname}${release}${shared_ext}$major' + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}' + case $host_os in + irix5* | nonstopux*) + libsuff= shlibsuff= + ;; + *) + case $LD in # libtool.m4 will add one of these switches to LD + *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") + libsuff= shlibsuff= libmagic=32-bit;; + *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") + libsuff=32 shlibsuff=N32 libmagic=N32;; + *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") + libsuff=64 shlibsuff=64 libmagic=64-bit;; + *) libsuff= shlibsuff= libmagic=never-match;; + esac + ;; + esac + shlibpath_var=LD_LIBRARY${shlibsuff}_PATH + shlibpath_overrides_runpath=no + sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}" + sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}" + hardcode_into_libs=yes + ;; + +# No shared lib support for Linux oldld, aout, or coff. +linux*oldld* | linux*aout* | linux*coff*) + dynamic_linker=no + ;; + +# This must be Linux ELF. + +# uclinux* changes (here and below) have been submitted to the libtool +# project, but have not yet been accepted: they are GCC-local changes +# for the time being. (See +# https://lists.gnu.org/archive/html/libtool-patches/2018-05/msg00000.html) +linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu* | uclinuxfdpiceabi) + version_type=linux + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + + # Some binutils ld are patched to set DT_RUNPATH + if ${lt_cv_shlibpath_overrides_runpath+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_shlibpath_overrides_runpath=no + save_LDFLAGS=$LDFLAGS + save_libdir=$libdir + eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \ + LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\"" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + if ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then : + lt_cv_shlibpath_overrides_runpath=yes +fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS=$save_LDFLAGS + libdir=$save_libdir + +fi + + shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + # Append ld.so.conf contents to the search path + if test -f /etc/ld.so.conf; then + lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '` + sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra" + fi + + # We used to test for /lib/ld.so.1 and disable shared libraries on + # powerpc, because MkLinux only supported shared libraries with the + # GNU dynamic linker. Since this was broken with cross compilers, + # most powerpc-linux boxes support dynamic linking these days and + # people can always --disable-shared, the test was removed, and we + # assume the GNU/Linux dynamic linker is in use. + dynamic_linker='GNU/Linux ld.so' + ;; + +netbsd*) + version_type=sunos + need_lib_prefix=no + need_version=no + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + dynamic_linker='NetBSD (a.out) ld.so' + else + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + dynamic_linker='NetBSD ld.elf_so' + fi + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + +newsos6) + version_type=linux + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +*nto* | *qnx*) + version_type=qnx + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + dynamic_linker='ldqnx.so' + ;; + +openbsd*) + version_type=sunos + sys_lib_dlsearch_path_spec="/usr/lib" + need_lib_prefix=no + # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs. + case $host_os in + openbsd3.3 | openbsd3.3.*) need_version=yes ;; + *) need_version=no ;; + esac + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + shlibpath_var=LD_LIBRARY_PATH + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then + case $host_os in + openbsd2.[89] | openbsd2.[89].*) + shlibpath_overrides_runpath=no + ;; + *) + shlibpath_overrides_runpath=yes + ;; + esac + else + shlibpath_overrides_runpath=yes + fi + ;; + +os2*) + libname_spec='$name' + shrext_cmds=".dll" + need_lib_prefix=no + library_names_spec='$libname${shared_ext} $libname.a' + dynamic_linker='OS/2 ld.exe' + shlibpath_var=LIBPATH + ;; + +osf3* | osf4* | osf5*) + version_type=osf + need_lib_prefix=no + need_version=no + soname_spec='${libname}${release}${shared_ext}$major' + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib" + sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec" + ;; + +rdos*) + dynamic_linker=no + ;; + +solaris*) + version_type=linux + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + # ldd complains unless libraries are executable + postinstall_cmds='chmod +x $lib' + ;; + +sunos4*) + version_type=sunos + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix' + finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + if test "$with_gnu_ld" = yes; then + need_lib_prefix=no + fi + need_version=yes + ;; + +sysv4 | sysv4.3*) + version_type=linux + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + case $host_vendor in + sni) + shlibpath_overrides_runpath=no + need_lib_prefix=no + runpath_var=LD_RUN_PATH + ;; + siemens) + need_lib_prefix=no + ;; + motorola) + need_lib_prefix=no + need_version=no + shlibpath_overrides_runpath=no + sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib' + ;; + esac + ;; + +sysv4*MP*) + if test -d /usr/nec ;then + version_type=linux + library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}' + soname_spec='$libname${shared_ext}.$major' + shlibpath_var=LD_LIBRARY_PATH + fi + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + version_type=freebsd-elf + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + if test "$with_gnu_ld" = yes; then + sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib' + else + sys_lib_search_path_spec='/usr/ccs/lib /usr/lib' + case $host_os in + sco3.2v5*) + sys_lib_search_path_spec="$sys_lib_search_path_spec /lib" + ;; + esac + fi + sys_lib_dlsearch_path_spec='/usr/lib' + ;; + +tpf*) + # TPF is a cross-target only. Preferred cross-host = GNU/Linux. + version_type=linux + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +uts4*) + version_type=linux + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +*) + dynamic_linker=no + ;; +esac +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5 +$as_echo "$dynamic_linker" >&6; } +test "$dynamic_linker" = no && can_build_shared=no + +variables_saved_for_relink="PATH $shlibpath_var $runpath_var" +if test "$GCC" = yes; then + variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH" +fi + +if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then + sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec" +fi +if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then + sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec" +fi + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5 +$as_echo_n "checking how to hardcode library paths into programs... " >&6; } +hardcode_action= +if test -n "$hardcode_libdir_flag_spec" || + test -n "$runpath_var" || + test "X$hardcode_automatic" = "Xyes" ; then + + # We can hardcode non-existent directories. + if test "$hardcode_direct" != no && + # If the only mechanism to avoid hardcoding is shlibpath_var, we + # have to relink, otherwise we might link with an installed library + # when we should be linking with a yet-to-be-installed one + ## test "$_LT_TAGVAR(hardcode_shlibpath_var, )" != no && + test "$hardcode_minus_L" != no; then + # Linking always hardcodes the temporary library directory. + hardcode_action=relink + else + # We can link without hardcoding, and we can hardcode nonexisting dirs. + hardcode_action=immediate + fi +else + # We cannot hardcode anything, or else we can only hardcode existing + # directories. + hardcode_action=unsupported +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5 +$as_echo "$hardcode_action" >&6; } + +if test "$hardcode_action" = relink || + test "$inherit_rpath" = yes; then + # Fast installation is not supported + enable_fast_install=no +elif test "$shlibpath_overrides_runpath" = yes || + test "$enable_shared" = no; then + # Fast installation is not necessary + enable_fast_install=needless +fi + + + + + + + if test "x$enable_dlopen" != xyes; then + enable_dlopen=unknown + enable_dlopen_self=unknown + enable_dlopen_self_static=unknown +else + lt_cv_dlopen=no + lt_cv_dlopen_libs= + + case $host_os in + beos*) + lt_cv_dlopen="load_add_on" + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + ;; + + mingw* | pw32* | cegcc*) + lt_cv_dlopen="LoadLibrary" + lt_cv_dlopen_libs= + ;; + + cygwin*) + lt_cv_dlopen="dlopen" + lt_cv_dlopen_libs= + ;; + + darwin*) + # if libdl is installed we need to link against it + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5 +$as_echo_n "checking for dlopen in -ldl... " >&6; } +if ${ac_cv_lib_dl_dlopen+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldl $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dl_dlopen=yes +else + ac_cv_lib_dl_dlopen=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5 +$as_echo "$ac_cv_lib_dl_dlopen" >&6; } +if test "x$ac_cv_lib_dl_dlopen" = xyes; then : + lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl" +else + + lt_cv_dlopen="dyld" + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + +fi + + ;; + + *) + ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load" +if test "x$ac_cv_func_shl_load" = xyes; then : + lt_cv_dlopen="shl_load" +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5 +$as_echo_n "checking for shl_load in -ldld... " >&6; } +if ${ac_cv_lib_dld_shl_load+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldld $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char shl_load (); +int +main () +{ +return shl_load (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dld_shl_load=yes +else + ac_cv_lib_dld_shl_load=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5 +$as_echo "$ac_cv_lib_dld_shl_load" >&6; } +if test "x$ac_cv_lib_dld_shl_load" = xyes; then : + lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld" +else + ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen" +if test "x$ac_cv_func_dlopen" = xyes; then : + lt_cv_dlopen="dlopen" +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5 +$as_echo_n "checking for dlopen in -ldl... " >&6; } +if ${ac_cv_lib_dl_dlopen+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldl $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dl_dlopen=yes +else + ac_cv_lib_dl_dlopen=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5 +$as_echo "$ac_cv_lib_dl_dlopen" >&6; } +if test "x$ac_cv_lib_dl_dlopen" = xyes; then : + lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl" +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5 +$as_echo_n "checking for dlopen in -lsvld... " >&6; } +if ${ac_cv_lib_svld_dlopen+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lsvld $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_svld_dlopen=yes +else + ac_cv_lib_svld_dlopen=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5 +$as_echo "$ac_cv_lib_svld_dlopen" >&6; } +if test "x$ac_cv_lib_svld_dlopen" = xyes; then : + lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld" +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5 +$as_echo_n "checking for dld_link in -ldld... " >&6; } +if ${ac_cv_lib_dld_dld_link+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldld $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dld_link (); +int +main () +{ +return dld_link (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dld_dld_link=yes +else + ac_cv_lib_dld_dld_link=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5 +$as_echo "$ac_cv_lib_dld_dld_link" >&6; } +if test "x$ac_cv_lib_dld_dld_link" = xyes; then : + lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld" +fi + + +fi + + +fi + + +fi + + +fi + + +fi + + ;; + esac + + if test "x$lt_cv_dlopen" != xno; then + enable_dlopen=yes + else + enable_dlopen=no + fi + + case $lt_cv_dlopen in + dlopen) + save_CPPFLAGS="$CPPFLAGS" + test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H" + + save_LDFLAGS="$LDFLAGS" + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\" + + save_LIBS="$LIBS" + LIBS="$lt_cv_dlopen_libs $LIBS" + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5 +$as_echo_n "checking whether a program can dlopen itself... " >&6; } +if ${lt_cv_dlopen_self+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test "$cross_compiling" = yes; then : + lt_cv_dlopen_self=cross +else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +#line 11512 "configure" +#include "confdefs.h" + +#if HAVE_DLFCN_H +#include <dlfcn.h> +#endif + +#include <stdio.h> + +#ifdef RTLD_GLOBAL +# define LT_DLGLOBAL RTLD_GLOBAL +#else +# ifdef DL_GLOBAL +# define LT_DLGLOBAL DL_GLOBAL +# else +# define LT_DLGLOBAL 0 +# endif +#endif + +/* We may have to define LT_DLLAZY_OR_NOW in the command line if we + find out it does not work in some platform. */ +#ifndef LT_DLLAZY_OR_NOW +# ifdef RTLD_LAZY +# define LT_DLLAZY_OR_NOW RTLD_LAZY +# else +# ifdef DL_LAZY +# define LT_DLLAZY_OR_NOW DL_LAZY +# else +# ifdef RTLD_NOW +# define LT_DLLAZY_OR_NOW RTLD_NOW +# else +# ifdef DL_NOW +# define LT_DLLAZY_OR_NOW DL_NOW +# else +# define LT_DLLAZY_OR_NOW 0 +# endif +# endif +# endif +# endif +#endif + +/* When -fvisbility=hidden is used, assume the code has been annotated + correspondingly for the symbols needed. */ +#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) +void fnord () __attribute__((visibility("default"))); +#endif + +void fnord () { int i=42; } +int main () +{ + void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); + int status = $lt_dlunknown; + + if (self) + { + if (dlsym (self,"fnord")) status = $lt_dlno_uscore; + else + { + if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; + else puts (dlerror ()); + } + /* dlclose (self); */ + } + else + puts (dlerror ()); + + return status; +} +_LT_EOF + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 + (eval $ac_link) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then + (./conftest; exit; ) >&5 2>/dev/null + lt_status=$? + case x$lt_status in + x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;; + x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;; + x$lt_dlunknown|x*) lt_cv_dlopen_self=no ;; + esac + else : + # compilation failed + lt_cv_dlopen_self=no + fi +fi +rm -fr conftest* + + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5 +$as_echo "$lt_cv_dlopen_self" >&6; } + + if test "x$lt_cv_dlopen_self" = xyes; then + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5 +$as_echo_n "checking whether a statically linked program can dlopen itself... " >&6; } +if ${lt_cv_dlopen_self_static+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test "$cross_compiling" = yes; then : + lt_cv_dlopen_self_static=cross +else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +#line 11618 "configure" +#include "confdefs.h" + +#if HAVE_DLFCN_H +#include <dlfcn.h> +#endif + +#include <stdio.h> + +#ifdef RTLD_GLOBAL +# define LT_DLGLOBAL RTLD_GLOBAL +#else +# ifdef DL_GLOBAL +# define LT_DLGLOBAL DL_GLOBAL +# else +# define LT_DLGLOBAL 0 +# endif +#endif + +/* We may have to define LT_DLLAZY_OR_NOW in the command line if we + find out it does not work in some platform. */ +#ifndef LT_DLLAZY_OR_NOW +# ifdef RTLD_LAZY +# define LT_DLLAZY_OR_NOW RTLD_LAZY +# else +# ifdef DL_LAZY +# define LT_DLLAZY_OR_NOW DL_LAZY +# else +# ifdef RTLD_NOW +# define LT_DLLAZY_OR_NOW RTLD_NOW +# else +# ifdef DL_NOW +# define LT_DLLAZY_OR_NOW DL_NOW +# else +# define LT_DLLAZY_OR_NOW 0 +# endif +# endif +# endif +# endif +#endif + +/* When -fvisbility=hidden is used, assume the code has been annotated + correspondingly for the symbols needed. */ +#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) +void fnord () __attribute__((visibility("default"))); +#endif + +void fnord () { int i=42; } +int main () +{ + void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); + int status = $lt_dlunknown; + + if (self) + { + if (dlsym (self,"fnord")) status = $lt_dlno_uscore; + else + { + if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; + else puts (dlerror ()); + } + /* dlclose (self); */ + } + else + puts (dlerror ()); + + return status; +} +_LT_EOF + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 + (eval $ac_link) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then + (./conftest; exit; ) >&5 2>/dev/null + lt_status=$? + case x$lt_status in + x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;; + x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;; + x$lt_dlunknown|x*) lt_cv_dlopen_self_static=no ;; + esac + else : + # compilation failed + lt_cv_dlopen_self_static=no + fi +fi +rm -fr conftest* + + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5 +$as_echo "$lt_cv_dlopen_self_static" >&6; } + fi + + CPPFLAGS="$save_CPPFLAGS" + LDFLAGS="$save_LDFLAGS" + LIBS="$save_LIBS" + ;; + esac + + case $lt_cv_dlopen_self in + yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;; + *) enable_dlopen_self=unknown ;; + esac + + case $lt_cv_dlopen_self_static in + yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;; + *) enable_dlopen_self_static=unknown ;; + esac +fi + + + + + + + + + + + + + + + + + +striplib= +old_striplib= +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stripping libraries is possible" >&5 +$as_echo_n "checking whether stripping libraries is possible... " >&6; } +if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then + test -z "$old_striplib" && old_striplib="$STRIP --strip-debug" + test -z "$striplib" && striplib="$STRIP --strip-unneeded" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else +# FIXME - insert some real tests, host_os isn't really good enough + case $host_os in + darwin*) + if test -n "$STRIP" ; then + striplib="$STRIP -x" + old_striplib="$STRIP -S" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + fi + ;; + *) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + ;; + esac +fi + + + + + + + + + + + + + # Report which library types will actually be built + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5 +$as_echo_n "checking if libtool supports shared libraries... " >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5 +$as_echo "$can_build_shared" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5 +$as_echo_n "checking whether to build shared libraries... " >&6; } + test "$can_build_shared" = "no" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test "$enable_shared" = yes && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + + aix[4-9]*) + if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then + test "$enable_shared" = yes && enable_static=no + fi + ;; + esac + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_shared" >&5 +$as_echo "$enable_shared" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5 +$as_echo_n "checking whether to build static libraries... " >&6; } + # Make sure either enable_shared or enable_static is yes. + test "$enable_shared" = yes || enable_static=yes + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5 +$as_echo "$enable_static" >&6; } + + + + +fi +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +CC="$lt_save_CC" + + + + + + + + + + + + + + ac_config_commands="$ac_config_commands libtool" + + + + +# Only expand once: + + + + +# Check whether --enable-largefile was given. +if test "${enable_largefile+set}" = set; then : + enableval=$enable_largefile; +fi + +if test "$enable_largefile" != no; then + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for special C compiler options needed for large files" >&5 +$as_echo_n "checking for special C compiler options needed for large files... " >&6; } +if ${ac_cv_sys_largefile_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_sys_largefile_CC=no + if test "$GCC" != yes; then + ac_save_CC=$CC + while :; do + # IRIX 6.2 and later do not support large files by default, + # so use the C compiler's -n32 option if that helps. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <sys/types.h> + /* Check that off_t can represent 2**63 - 1 correctly. + We can't simply define LARGE_OFF_T to be 9223372036854775807, + since some C++ compilers masquerading as C compilers + incorrectly reject 9223372036854775807. */ +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) + int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 + && LARGE_OFF_T % 2147483647 == 1) + ? 1 : -1]; +int +main () +{ + + ; + return 0; +} +_ACEOF + if ac_fn_c_try_compile "$LINENO"; then : + break +fi +rm -f core conftest.err conftest.$ac_objext + CC="$CC -n32" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_sys_largefile_CC=' -n32'; break +fi +rm -f core conftest.err conftest.$ac_objext + break + done + CC=$ac_save_CC + rm -f conftest.$ac_ext + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_largefile_CC" >&5 +$as_echo "$ac_cv_sys_largefile_CC" >&6; } + if test "$ac_cv_sys_largefile_CC" != no; then + CC=$CC$ac_cv_sys_largefile_CC + fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _FILE_OFFSET_BITS value needed for large files" >&5 +$as_echo_n "checking for _FILE_OFFSET_BITS value needed for large files... " >&6; } +if ${ac_cv_sys_file_offset_bits+:} false; then : + $as_echo_n "(cached) " >&6 +else + while :; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <sys/types.h> + /* Check that off_t can represent 2**63 - 1 correctly. + We can't simply define LARGE_OFF_T to be 9223372036854775807, + since some C++ compilers masquerading as C compilers + incorrectly reject 9223372036854775807. */ +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) + int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 + && LARGE_OFF_T % 2147483647 == 1) + ? 1 : -1]; +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_sys_file_offset_bits=no; break +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#define _FILE_OFFSET_BITS 64 +#include <sys/types.h> + /* Check that off_t can represent 2**63 - 1 correctly. + We can't simply define LARGE_OFF_T to be 9223372036854775807, + since some C++ compilers masquerading as C compilers + incorrectly reject 9223372036854775807. */ +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) + int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 + && LARGE_OFF_T % 2147483647 == 1) + ? 1 : -1]; +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_sys_file_offset_bits=64; break +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ac_cv_sys_file_offset_bits=unknown + break +done +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_file_offset_bits" >&5 +$as_echo "$ac_cv_sys_file_offset_bits" >&6; } +case $ac_cv_sys_file_offset_bits in #( + no | unknown) ;; + *) +cat >>confdefs.h <<_ACEOF +#define _FILE_OFFSET_BITS $ac_cv_sys_file_offset_bits +_ACEOF +;; +esac +rm -rf conftest* + if test $ac_cv_sys_file_offset_bits = unknown; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _LARGE_FILES value needed for large files" >&5 +$as_echo_n "checking for _LARGE_FILES value needed for large files... " >&6; } +if ${ac_cv_sys_large_files+:} false; then : + $as_echo_n "(cached) " >&6 +else + while :; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <sys/types.h> + /* Check that off_t can represent 2**63 - 1 correctly. + We can't simply define LARGE_OFF_T to be 9223372036854775807, + since some C++ compilers masquerading as C compilers + incorrectly reject 9223372036854775807. */ +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) + int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 + && LARGE_OFF_T % 2147483647 == 1) + ? 1 : -1]; +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_sys_large_files=no; break +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#define _LARGE_FILES 1 +#include <sys/types.h> + /* Check that off_t can represent 2**63 - 1 correctly. + We can't simply define LARGE_OFF_T to be 9223372036854775807, + since some C++ compilers masquerading as C compilers + incorrectly reject 9223372036854775807. */ +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) + int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 + && LARGE_OFF_T % 2147483647 == 1) + ? 1 : -1]; +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_sys_large_files=1; break +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ac_cv_sys_large_files=unknown + break +done +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_large_files" >&5 +$as_echo "$ac_cv_sys_large_files" >&6; } +case $ac_cv_sys_large_files in #( + no | unknown) ;; + *) +cat >>confdefs.h <<_ACEOF +#define _LARGE_FILES $ac_cv_sys_large_files +_ACEOF +;; +esac +rm -rf conftest* + fi + + +fi + + +backtrace_supported=yes + +if test -n "${with_target_subdir}"; then + # We are compiling a GCC library. We can assume that the unwind + # library exists. + BACKTRACE_FILE="backtrace.lo simple.lo" +else + ac_fn_c_check_header_mongrel "$LINENO" "unwind.h" "ac_cv_header_unwind_h" "$ac_includes_default" +if test "x$ac_cv_header_unwind_h" = xyes; then : + ac_fn_c_check_func "$LINENO" "_Unwind_Backtrace" "ac_cv_func__Unwind_Backtrace" +if test "x$ac_cv_func__Unwind_Backtrace" = xyes; then : + BACKTRACE_FILE="backtrace.lo simple.lo" +else + BACKTRACE_FILE="nounwind.lo" + backtrace_supported=no +fi + +else + BACKTRACE_FILE="nounwind.lo" + backtrace_supported=no +fi + + +fi + + +EXTRA_FLAGS= +if test -n "${with_target_subdir}"; then + EXTRA_FLAGS="-funwind-tables -frandom-seed=\$@" +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -funwind-tables option" >&5 +$as_echo_n "checking for -funwind-tables option... " >&6; } +if ${libbacktrace_cv_c_unwind_tables+:} false; then : + $as_echo_n "(cached) " >&6 +else + CFLAGS_hold="$CFLAGS" + CFLAGS="$CFLAGS -funwind-tables" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +static int f() { return 0; } +int +main () +{ +return f(); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + libbacktrace_cv_c_unwind_tables=yes +else + libbacktrace_cv_c_unwind_tables=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + CFLAGS="$CFLAGS_hold" +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libbacktrace_cv_c_unwind_tables" >&5 +$as_echo "$libbacktrace_cv_c_unwind_tables" >&6; } + if test "$libbacktrace_cv_c_unwind_tables" = "yes"; then + EXTRA_FLAGS=-funwind-tables + fi + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -frandom-seed=string option" >&5 +$as_echo_n "checking for -frandom-seed=string option... " >&6; } +if ${libbacktrace_cv_c_random_seed_string+:} false; then : + $as_echo_n "(cached) " >&6 +else + CFLAGS_hold="$CFLAGS" + CFLAGS="$CFLAGS -frandom-seed=conftest.lo" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +return 0; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + libbacktrace_cv_c_random_seed_string=yes +else + libbacktrace_cv_c_random_seed_string=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + CFLAGS="$CFLAGS_hold" +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libbacktrace_cv_c_random_seed_string" >&5 +$as_echo "$libbacktrace_cv_c_random_seed_string" >&6; } + if test "$libbacktrace_cv_c_random_seed_string" = "yes"; then + EXTRA_FLAGS="$EXTRA_FLAGS -frandom-seed=\$@" + fi +fi + +if test -n "${with_target_subdir}"; then + # Add CET specific flags is Intel CET is enabled. + # Check whether --enable-cet was given. +if test "${enable_cet+set}" = set; then : + enableval=$enable_cet; + case "$enableval" in + yes|no|auto) ;; + *) as_fn_error $? "Unknown argument to enable/disable cet" "$LINENO" 5 ;; + esac + +else + enable_cet=auto +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for CET support" >&5 +$as_echo_n "checking for CET support... " >&6; } + +# NB: Avoid nested save_CFLAGS and save_LDFLAGS. +case "$host" in + i[34567]86-*-linux* | x86_64-*-linux*) + case "$enable_cet" in + auto) + # Check if target supports multi-byte NOPs + # and if compiler and assembler support CET insn. + cet_save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -fcf-protection" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + +#if !defined(__SSE2__) +#error target does not support multi-byte NOPs +#else +asm ("setssbsy"); +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + enable_cet=yes +else + enable_cet=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + CFLAGS="$cet_save_CFLAGS" + ;; + yes) + # Check if assembler supports CET. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +asm ("setssbsy"); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + +else + as_fn_error $? "assembler with CET support is required for --enable-cet" "$LINENO" 5 +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ;; + esac + ;; + *) + enable_cet=no + ;; +esac +if test x$enable_cet = xyes; then + CET_FLAGS="-fcf-protection -mshstk" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + EXTRA_FLAGS="$EXTRA_FLAGS $CET_FLAGS" +fi + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +WARN_FLAGS= +save_CFLAGS="$CFLAGS" +for real_option in -W -Wall -Wwrite-strings -Wstrict-prototypes \ + -Wmissing-prototypes -Wold-style-definition \ + -Wmissing-format-attribute -Wcast-qual; do + # Do the check with the no- prefix removed since gcc silently + # accepts any -Wno-* option on purpose + case $real_option in + -Wno-*) option=-W`expr x$real_option : 'x-Wno-\(.*\)'` ;; + *) option=$real_option ;; + esac + as_acx_Woption=`$as_echo "acx_cv_prog_cc_warning_$option" | $as_tr_sh` + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports $option" >&5 +$as_echo_n "checking whether $CC supports $option... " >&6; } +if eval \${$as_acx_Woption+:} false; then : + $as_echo_n "(cached) " >&6 +else + CFLAGS="$option" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + eval "$as_acx_Woption=yes" +else + eval "$as_acx_Woption=no" +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +fi +eval ac_res=\$$as_acx_Woption + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +$as_echo "$ac_res" >&6; } + if test `eval 'as_val=${'$as_acx_Woption'};$as_echo "$as_val"'` = yes; then : + WARN_FLAGS="$WARN_FLAGS${WARN_FLAGS:+ }$real_option" +fi + done +CFLAGS="$save_CFLAGS" +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + +if test -n "${with_target_subdir}"; then + WARN_FLAGS="$WARN_FLAGS -Werror" +fi + + + +if test -n "${with_target_subdir}"; then + + +# Check whether --with-system-libunwind was given. +if test "${with_system_libunwind+set}" = set; then : + withval=$with_system_libunwind; +fi + + # If system-libunwind was not specifically set, pick a default setting. + if test x$with_system_libunwind = x; then + case ${target} in + ia64-*-hpux*) with_system_libunwind=yes ;; + *) with_system_libunwind=no ;; + esac + fi + # Based on system-libunwind and target, do we have ipinfo? + if test x$with_system_libunwind = xyes; then + case ${target} in + ia64-*-*) have_unwind_getipinfo=no ;; + *) have_unwind_getipinfo=yes ;; + esac + else + # Darwin before version 9 does not have _Unwind_GetIPInfo. + + case ${target} in + *-*-darwin[3-8]|*-*-darwin[3-8].*) have_unwind_getipinfo=no ;; + *) have_unwind_getipinfo=yes ;; + esac + + fi + + if test x$have_unwind_getipinfo = xyes; then + +$as_echo "#define HAVE_GETIPINFO 1" >>confdefs.h + + fi + +else + ac_save_CFFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -Werror-implicit-function-declaration" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _Unwind_GetIPInfo" >&5 +$as_echo_n "checking for _Unwind_GetIPInfo... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include "unwind.h" + struct _Unwind_Context *context; + int ip_before_insn = 0; +int +main () +{ +return _Unwind_GetIPInfo (context, &ip_before_insn); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + have_unwind_getipinfo=yes +else + have_unwind_getipinfo=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + CFLAGS="$ac_save_CFLAGS" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_unwind_getipinfo" >&5 +$as_echo "$have_unwind_getipinfo" >&6; } + if test "$have_unwind_getipinfo" = "yes"; then + +$as_echo "#define HAVE_GETIPINFO 1" >>confdefs.h + + fi +fi + +# Enable --enable-host-shared. +# Check whether --enable-host-shared was given. +if test "${enable_host_shared+set}" = set; then : + enableval=$enable_host_shared; PIC_FLAG=-fPIC +else + PIC_FLAG= +fi + + + +# Enable Intel CET on Intel CET enabled host if jit is enabled. + # Check whether --enable-cet was given. +if test "${enable_cet+set}" = set; then : + enableval=$enable_cet; + case "$enableval" in + yes|no|auto) ;; + *) as_fn_error $? "Unknown argument to enable/disable cet" "$LINENO" 5 ;; + esac + +else + enable_cet=auto +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for CET support" >&5 +$as_echo_n "checking for CET support... " >&6; } + +case "$host" in + i[34567]86-*-linux* | x86_64-*-linux*) + may_have_cet=yes + cet_save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -fcf-protection" + case "$enable_cet" in + auto) + # Check if target supports multi-byte NOPs + # and if compiler and assembler support CET. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + +#if !defined(__SSE2__) +#error target does not support multi-byte NOPs +#else +asm ("setssbsy"); +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + enable_cet=yes +else + enable_cet=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ;; + yes) + # Check if compiler and assembler support CET. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +asm ("setssbsy"); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + support_cet=yes +else + support_cet=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + if test $support_cet = "no"; then + if test x$enable_bootstrap != xno \ + && test -z "${with_build_subdir}" \ + && (test ! -f ../stage_current \ + || test `cat ../stage_current` != "stage1"); then + # Require CET support only for the final GCC build. + as_fn_error $? "compiler and assembler with CET support are required for --enable-cet" "$LINENO" 5 + else + # Don't enable CET without CET support for non-bootstrap + # build, in stage1 nor for build support. + enable_cet=no + fi + fi + ;; + esac + CFLAGS="$cet_save_CFLAGS" + ;; + *) + may_have_cet=no + enable_cet=no + ;; +esac + +cet_save_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -fcf-protection=none" +cet_save_LDFLAGS="$LDFLAGS" +LDFLAGS="$LDFLAGS -Wl,-z,ibt,-z,shstk" +if test x$may_have_cet = xyes; then + # Check whether -fcf-protection=none -Wl,-z,ibt,-z,shstk work. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +return 0; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + may_have_cet=yes +else + may_have_cet=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +fi + +if test x$may_have_cet = xyes; then + if test x$cross_compiling = xno; then + if test "$cross_compiling" = yes; then : + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot run test program while cross compiling +See \`config.log' for more details" "$LINENO" 5; } +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + asm ("endbr32"); + return 0; +} + +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + have_multi_byte_nop=yes +else + have_multi_byte_nop=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + + have_cet=no + if test x$have_multi_byte_nop = xyes; then + if test "$cross_compiling" = yes; then : + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot run test program while cross compiling +See \`config.log' for more details" "$LINENO" 5; } +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +static void +foo (void) +{ +} + +static void +__attribute__ ((noinline, noclone)) +xxx (void (*f) (void)) +{ + f (); +} + +static void +__attribute__ ((noinline, noclone)) +bar (void) +{ + xxx (foo); +} + +int +main () +{ + bar (); + return 0; +} + +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + have_cet=no +else + have_cet=yes +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + + fi + if test x$enable_cet = xno -a x$have_cet = xyes; then + as_fn_error $? "Intel CET must be enabled on Intel CET enabled host" "$LINENO" 5 + fi + fi +else + # Enable CET in cross compiler if possible so that it will run on both + # CET and non-CET hosts. + have_cet=yes +fi +if test x$enable_cet = xyes; then + CET_HOST_FLAGS="-fcf-protection" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi +CFLAGS="$cet_save_CFLAGS" +LDFLAGS="$cet_save_LDFLAGS" + +case x$enable_languages in +*jit*) + ;; +*) + CET_HOST_FLAGS= + ;; +esac + + +# Test for __sync support. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking __sync extensions" >&5 +$as_echo_n "checking __sync extensions... " >&6; } +if ${libbacktrace_cv_sys_sync+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "${with_target_subdir}"; then + case "${host}" in + hppa*-*-hpux*) libbacktrace_cv_sys_sync=no ;; + *) libbacktrace_cv_sys_sync=yes ;; + esac + else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int i; +int +main () +{ +__sync_bool_compare_and_swap (&i, i, i); + __sync_lock_test_and_set (&i, 1); + __sync_lock_release (&i); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + libbacktrace_cv_sys_sync=yes +else + libbacktrace_cv_sys_sync=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libbacktrace_cv_sys_sync" >&5 +$as_echo "$libbacktrace_cv_sys_sync" >&6; } +BACKTRACE_SUPPORTS_THREADS=0 +if test "$libbacktrace_cv_sys_sync" = "yes"; then + BACKTRACE_SUPPORTS_THREADS=1 + +$as_echo "#define HAVE_SYNC_FUNCTIONS 1" >>confdefs.h + +fi + + +# Test for __atomic support. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking __atomic extensions" >&5 +$as_echo_n "checking __atomic extensions... " >&6; } +if ${libbacktrace_cv_sys_atomic+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "${with_target_subdir}"; then + libbacktrace_cv_sys_atomic=yes + else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int i; +int +main () +{ +__atomic_load_n (&i, __ATOMIC_ACQUIRE); + __atomic_store_n (&i, 1, __ATOMIC_RELEASE); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + libbacktrace_cv_sys_atomic=yes +else + libbacktrace_cv_sys_atomic=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libbacktrace_cv_sys_atomic" >&5 +$as_echo "$libbacktrace_cv_sys_atomic" >&6; } +if test "$libbacktrace_cv_sys_atomic" = "yes"; then + +$as_echo "#define HAVE_ATOMIC_FUNCTIONS 1" >>confdefs.h + +fi + +# The library needs to be able to read the executable itself. Compile +# a file to determine the executable format. The awk script +# filetype.awk prints out the file type. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking output filetype" >&5 +$as_echo_n "checking output filetype... " >&6; } +if ${libbacktrace_cv_sys_filetype+:} false; then : + $as_echo_n "(cached) " >&6 +else + filetype= +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int i; +int +main () +{ +int j; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + filetype=`${AWK} -f $srcdir/filetype.awk conftest.$ac_objext` +else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "compiler failed +See \`config.log' for more details" "$LINENO" 5; } +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +libbacktrace_cv_sys_filetype=$filetype +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libbacktrace_cv_sys_filetype" >&5 +$as_echo "$libbacktrace_cv_sys_filetype" >&6; } + +# Match the file type to decide what files to compile. +FORMAT_FILE= +backtrace_supports_data=yes +case "$libbacktrace_cv_sys_filetype" in +elf*) FORMAT_FILE="elf.lo" ;; +macho) FORMAT_FILE="macho.lo" ;; +pecoff) FORMAT_FILE="pecoff.lo" + backtrace_supports_data=no + ;; +xcoff*) FORMAT_FILE="xcoff.lo" + backtrace_supports_data=no + ;; +*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: could not determine output file type" >&5 +$as_echo "$as_me: WARNING: could not determine output file type" >&2;} + FORMAT_FILE="unknown.lo" + backtrace_supported=no + ;; +esac + + +# ELF defines. +elfsize= +case "$libbacktrace_cv_sys_filetype" in +elf32) elfsize=32 ;; +elf64) elfsize=64 ;; +*) elfsize=unused +esac + +cat >>confdefs.h <<_ACEOF +#define BACKTRACE_ELF_SIZE $elfsize +_ACEOF + + if test "$FORMAT_FILE" = "elf.lo"; then + HAVE_ELF_TRUE= + HAVE_ELF_FALSE='#' +else + HAVE_ELF_TRUE='#' + HAVE_ELF_FALSE= +fi + + +# XCOFF defines. +xcoffsize= +case "$libbacktrace_cv_sys_filetype" in +xcoff32) xcoffsize=32 ;; +xcoff64) xcoffsize=64 ;; +*) xcoffsize=unused +esac + +cat >>confdefs.h <<_ACEOF +#define BACKTRACE_XCOFF_SIZE $xcoffsize +_ACEOF + + +BACKTRACE_SUPPORTED=0 +if test "$backtrace_supported" = "yes"; then + BACKTRACE_SUPPORTED=1 +fi + + +BACKTRACE_SUPPORTS_DATA=0 +if test "$backtrace_supports_data" = "yes"; then + BACKTRACE_SUPPORTS_DATA=1 +fi + + + + +inttype_headers=`echo inttypes.h sys/inttypes.h | sed -e 's/,/ /g'` + +acx_cv_header_stdint=stddef.h +acx_cv_header_stdint_kind="(already complete)" +for i in stdint.h $inttype_headers; do + unset ac_cv_type_uintptr_t + unset ac_cv_type_uintmax_t + unset ac_cv_type_int_least32_t + unset ac_cv_type_int_fast32_t + unset ac_cv_type_uint64_t + $as_echo_n "looking for a compliant stdint.h in $i, " >&6 + ac_fn_c_check_type "$LINENO" "uintmax_t" "ac_cv_type_uintmax_t" "#include <sys/types.h> +#include <$i> +" +if test "x$ac_cv_type_uintmax_t" = xyes; then : + acx_cv_header_stdint=$i +else + continue +fi + + ac_fn_c_check_type "$LINENO" "uintptr_t" "ac_cv_type_uintptr_t" "#include <sys/types.h> +#include <$i> +" +if test "x$ac_cv_type_uintptr_t" = xyes; then : + +else + acx_cv_header_stdint_kind="(mostly complete)" +fi + + ac_fn_c_check_type "$LINENO" "int_least32_t" "ac_cv_type_int_least32_t" "#include <sys/types.h> +#include <$i> +" +if test "x$ac_cv_type_int_least32_t" = xyes; then : + +else + acx_cv_header_stdint_kind="(mostly complete)" +fi + + ac_fn_c_check_type "$LINENO" "int_fast32_t" "ac_cv_type_int_fast32_t" "#include <sys/types.h> +#include <$i> +" +if test "x$ac_cv_type_int_fast32_t" = xyes; then : + +else + acx_cv_header_stdint_kind="(mostly complete)" +fi + + ac_fn_c_check_type "$LINENO" "uint64_t" "ac_cv_type_uint64_t" "#include <sys/types.h> +#include <$i> +" +if test "x$ac_cv_type_uint64_t" = xyes; then : + +else + acx_cv_header_stdint_kind="(lacks uint64_t)" +fi + + break +done +if test "$acx_cv_header_stdint" = stddef.h; then + acx_cv_header_stdint_kind="(lacks uintmax_t)" + for i in stdint.h $inttype_headers; do + unset ac_cv_type_uintptr_t + unset ac_cv_type_uint32_t + unset ac_cv_type_uint64_t + $as_echo_n "looking for an incomplete stdint.h in $i, " >&6 + ac_fn_c_check_type "$LINENO" "uint32_t" "ac_cv_type_uint32_t" "#include <sys/types.h> +#include <$i> +" +if test "x$ac_cv_type_uint32_t" = xyes; then : + acx_cv_header_stdint=$i +else + continue +fi + + ac_fn_c_check_type "$LINENO" "uint64_t" "ac_cv_type_uint64_t" "#include <sys/types.h> +#include <$i> +" +if test "x$ac_cv_type_uint64_t" = xyes; then : + +fi + + ac_fn_c_check_type "$LINENO" "uintptr_t" "ac_cv_type_uintptr_t" "#include <sys/types.h> +#include <$i> +" +if test "x$ac_cv_type_uintptr_t" = xyes; then : + +fi + + break + done +fi +if test "$acx_cv_header_stdint" = stddef.h; then + acx_cv_header_stdint_kind="(u_intXX_t style)" + for i in sys/types.h $inttype_headers; do + unset ac_cv_type_u_int32_t + unset ac_cv_type_u_int64_t + $as_echo_n "looking for u_intXX_t types in $i, " >&6 + ac_fn_c_check_type "$LINENO" "u_int32_t" "ac_cv_type_u_int32_t" "#include <sys/types.h> +#include <$i> +" +if test "x$ac_cv_type_u_int32_t" = xyes; then : + acx_cv_header_stdint=$i +else + continue +fi + + ac_fn_c_check_type "$LINENO" "u_int64_t" "ac_cv_type_u_int64_t" "#include <sys/types.h> +#include <$i> +" +if test "x$ac_cv_type_u_int64_t" = xyes; then : + +fi + + break + done +fi +if test "$acx_cv_header_stdint" = stddef.h; then + acx_cv_header_stdint_kind="(using manual detection)" +fi + +test -z "$ac_cv_type_uintptr_t" && ac_cv_type_uintptr_t=no +test -z "$ac_cv_type_uint64_t" && ac_cv_type_uint64_t=no +test -z "$ac_cv_type_u_int64_t" && ac_cv_type_u_int64_t=no +test -z "$ac_cv_type_int_least32_t" && ac_cv_type_int_least32_t=no +test -z "$ac_cv_type_int_fast32_t" && ac_cv_type_int_fast32_t=no + +# ----------------- Summarize what we found so far + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking what to include in gstdint.h" >&5 +$as_echo_n "checking what to include in gstdint.h... " >&6; } + +case `$as_basename -- gstdint.h || +$as_expr X/gstdint.h : '.*/\([^/][^/]*\)/*$' \| \ + Xgstdint.h : 'X\(//\)$' \| \ + Xgstdint.h : 'X\(/\)' \| . 2>/dev/null || +$as_echo X/gstdint.h | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` in + stdint.h) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: are you sure you want it there?" >&5 +$as_echo "$as_me: WARNING: are you sure you want it there?" >&2;} ;; + inttypes.h) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: are you sure you want it there?" >&5 +$as_echo "$as_me: WARNING: are you sure you want it there?" >&2;} ;; + *) ;; +esac + +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_cv_header_stdint $acx_cv_header_stdint_kind" >&5 +$as_echo "$acx_cv_header_stdint $acx_cv_header_stdint_kind" >&6; } + +# ----------------- done included file, check C basic types -------- + +# Lacking an uintptr_t? Test size of void * +case "$acx_cv_header_stdint:$ac_cv_type_uintptr_t" in + stddef.h:* | *:no) # The cast to long int works around a bug in the HP C Compiler +# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects +# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. +# This bug is HP SR number 8606223364. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of void *" >&5 +$as_echo_n "checking size of void *... " >&6; } +if ${ac_cv_sizeof_void_p+:} false; then : + $as_echo_n "(cached) " >&6 +else + if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (void *))" "ac_cv_sizeof_void_p" "$ac_includes_default"; then : + +else + if test "$ac_cv_type_void_p" = yes; then + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error 77 "cannot compute sizeof (void *) +See \`config.log' for more details" "$LINENO" 5; } + else + ac_cv_sizeof_void_p=0 + fi +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_void_p" >&5 +$as_echo "$ac_cv_sizeof_void_p" >&6; } + + + +cat >>confdefs.h <<_ACEOF +#define SIZEOF_VOID_P $ac_cv_sizeof_void_p +_ACEOF + + ;; +esac + +# Lacking an uint64_t? Test size of long +case "$acx_cv_header_stdint:$ac_cv_type_uint64_t:$ac_cv_type_u_int64_t" in + stddef.h:*:* | *:no:no) # The cast to long int works around a bug in the HP C Compiler +# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects +# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. +# This bug is HP SR number 8606223364. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of long" >&5 +$as_echo_n "checking size of long... " >&6; } +if ${ac_cv_sizeof_long+:} false; then : + $as_echo_n "(cached) " >&6 +else + if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long" "$ac_includes_default"; then : + +else + if test "$ac_cv_type_long" = yes; then + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error 77 "cannot compute sizeof (long) +See \`config.log' for more details" "$LINENO" 5; } + else + ac_cv_sizeof_long=0 + fi +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long" >&5 +$as_echo "$ac_cv_sizeof_long" >&6; } + + + +cat >>confdefs.h <<_ACEOF +#define SIZEOF_LONG $ac_cv_sizeof_long +_ACEOF + + ;; +esac + +if test $acx_cv_header_stdint = stddef.h; then + # Lacking a good header? Test size of everything and deduce all types. + # The cast to long int works around a bug in the HP C Compiler +# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects +# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. +# This bug is HP SR number 8606223364. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of int" >&5 +$as_echo_n "checking size of int... " >&6; } +if ${ac_cv_sizeof_int+:} false; then : + $as_echo_n "(cached) " >&6 +else + if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (int))" "ac_cv_sizeof_int" "$ac_includes_default"; then : + +else + if test "$ac_cv_type_int" = yes; then + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error 77 "cannot compute sizeof (int) +See \`config.log' for more details" "$LINENO" 5; } + else + ac_cv_sizeof_int=0 + fi +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_int" >&5 +$as_echo "$ac_cv_sizeof_int" >&6; } + + + +cat >>confdefs.h <<_ACEOF +#define SIZEOF_INT $ac_cv_sizeof_int +_ACEOF + + + # The cast to long int works around a bug in the HP C Compiler +# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects +# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. +# This bug is HP SR number 8606223364. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of short" >&5 +$as_echo_n "checking size of short... " >&6; } +if ${ac_cv_sizeof_short+:} false; then : + $as_echo_n "(cached) " >&6 +else + if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (short))" "ac_cv_sizeof_short" "$ac_includes_default"; then : + +else + if test "$ac_cv_type_short" = yes; then + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error 77 "cannot compute sizeof (short) +See \`config.log' for more details" "$LINENO" 5; } + else + ac_cv_sizeof_short=0 + fi +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_short" >&5 +$as_echo "$ac_cv_sizeof_short" >&6; } + + + +cat >>confdefs.h <<_ACEOF +#define SIZEOF_SHORT $ac_cv_sizeof_short +_ACEOF + + + # The cast to long int works around a bug in the HP C Compiler +# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects +# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. +# This bug is HP SR number 8606223364. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of char" >&5 +$as_echo_n "checking size of char... " >&6; } +if ${ac_cv_sizeof_char+:} false; then : + $as_echo_n "(cached) " >&6 +else + if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (char))" "ac_cv_sizeof_char" "$ac_includes_default"; then : + +else + if test "$ac_cv_type_char" = yes; then + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error 77 "cannot compute sizeof (char) +See \`config.log' for more details" "$LINENO" 5; } + else + ac_cv_sizeof_char=0 + fi +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_char" >&5 +$as_echo "$ac_cv_sizeof_char" >&6; } + + + +cat >>confdefs.h <<_ACEOF +#define SIZEOF_CHAR $ac_cv_sizeof_char +_ACEOF + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for type equivalent to int8_t" >&5 +$as_echo_n "checking for type equivalent to int8_t... " >&6; } + case "$ac_cv_sizeof_char" in + 1) acx_cv_type_int8_t=char ;; + *) as_fn_error $? "no 8-bit type, please report a bug" "$LINENO" 5 + esac + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_cv_type_int8_t" >&5 +$as_echo "$acx_cv_type_int8_t" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for type equivalent to int16_t" >&5 +$as_echo_n "checking for type equivalent to int16_t... " >&6; } + case "$ac_cv_sizeof_int:$ac_cv_sizeof_short" in + 2:*) acx_cv_type_int16_t=int ;; + *:2) acx_cv_type_int16_t=short ;; + *) as_fn_error $? "no 16-bit type, please report a bug" "$LINENO" 5 + esac + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_cv_type_int16_t" >&5 +$as_echo "$acx_cv_type_int16_t" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for type equivalent to int32_t" >&5 +$as_echo_n "checking for type equivalent to int32_t... " >&6; } + case "$ac_cv_sizeof_int:$ac_cv_sizeof_long" in + 4:*) acx_cv_type_int32_t=int ;; + *:4) acx_cv_type_int32_t=long ;; + *) as_fn_error $? "no 32-bit type, please report a bug" "$LINENO" 5 + esac + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_cv_type_int32_t" >&5 +$as_echo "$acx_cv_type_int32_t" >&6; } +fi + +# These tests are here to make the output prettier + +if test "$ac_cv_type_uint64_t" != yes && test "$ac_cv_type_u_int64_t" != yes; then + case "$ac_cv_sizeof_long" in + 8) acx_cv_type_int64_t=long ;; + esac + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for type equivalent to int64_t" >&5 +$as_echo_n "checking for type equivalent to int64_t... " >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${acx_cv_type_int64_t-'using preprocessor symbols'}" >&5 +$as_echo "${acx_cv_type_int64_t-'using preprocessor symbols'}" >&6; } +fi + +# Now we can use the above types + +if test "$ac_cv_type_uintptr_t" != yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for type equivalent to intptr_t" >&5 +$as_echo_n "checking for type equivalent to intptr_t... " >&6; } + case $ac_cv_sizeof_void_p in + 2) acx_cv_type_intptr_t=int16_t ;; + 4) acx_cv_type_intptr_t=int32_t ;; + 8) acx_cv_type_intptr_t=int64_t ;; + *) as_fn_error $? "no equivalent for intptr_t, please report a bug" "$LINENO" 5 + esac + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_cv_type_intptr_t" >&5 +$as_echo "$acx_cv_type_intptr_t" >&6; } +fi + +# ----------------- done all checks, emit header ------------- +ac_config_commands="$ac_config_commands gstdint.h" + + + + +for ac_header in sys/mman.h +do : + ac_fn_c_check_header_mongrel "$LINENO" "sys/mman.h" "ac_cv_header_sys_mman_h" "$ac_includes_default" +if test "x$ac_cv_header_sys_mman_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_SYS_MMAN_H 1 +_ACEOF + +fi + +done + +if test "$ac_cv_header_sys_mman_h" = "no"; then + have_mmap=no +else + if test -n "${with_target_subdir}"; then + # When built as a GCC target library, we can't do a link test. We + # simply assume that if we have mman.h, we have mmap. + have_mmap=yes + case "${host}" in + *-*-msdosdjgpp) + # DJGPP has sys/man.h, but no mmap + have_mmap=no ;; + esac + else + ac_fn_c_check_func "$LINENO" "mmap" "ac_cv_func_mmap" +if test "x$ac_cv_func_mmap" = xyes; then : + have_mmap=yes +else + have_mmap=no +fi + + fi +fi +if test "$have_mmap" = "no"; then + VIEW_FILE=read.lo + ALLOC_FILE=alloc.lo +else + VIEW_FILE=mmapio.lo + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include <sys/mman.h> +#if !defined(MAP_ANONYMOUS) && !defined(MAP_ANON) + #error no MAP_ANONYMOUS +#endif + +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + ALLOC_FILE=mmap.lo +else + ALLOC_FILE=alloc.lo +fi +rm -f conftest.err conftest.i conftest.$ac_ext +fi + + + +BACKTRACE_USES_MALLOC=0 +if test "$ALLOC_FILE" = "alloc.lo"; then + BACKTRACE_USES_MALLOC=1 +fi + + +# Check for dl_iterate_phdr. +for ac_header in link.h +do : + ac_fn_c_check_header_mongrel "$LINENO" "link.h" "ac_cv_header_link_h" "$ac_includes_default" +if test "x$ac_cv_header_link_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_LINK_H 1 +_ACEOF + +fi + +done + +if test "$ac_cv_header_link_h" = "no"; then + have_dl_iterate_phdr=no +else + if test -n "${with_target_subdir}"; then + # When built as a GCC target library, we can't do a link test. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <link.h> + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "dl_iterate_phdr" >/dev/null 2>&1; then : + have_dl_iterate_phdr=yes +else + have_dl_iterate_phdr=no +fi +rm -f conftest* + + else + ac_fn_c_check_func "$LINENO" "dl_iterate_phdr" "ac_cv_func_dl_iterate_phdr" +if test "x$ac_cv_func_dl_iterate_phdr" = xyes; then : + have_dl_iterate_phdr=yes +else + have_dl_iterate_phdr=no +fi + + fi +fi +if test "$have_dl_iterate_phdr" = "yes"; then + +$as_echo "#define HAVE_DL_ITERATE_PHDR 1" >>confdefs.h + +fi + +# Check for header file for Mach-O image functions. +for ac_header in mach-o/dyld.h +do : + ac_fn_c_check_header_mongrel "$LINENO" "mach-o/dyld.h" "ac_cv_header_mach_o_dyld_h" "$ac_includes_default" +if test "x$ac_cv_header_mach_o_dyld_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_MACH_O_DYLD_H 1 +_ACEOF + +fi + +done + + +# Check for loadquery. +for ac_header in sys/ldr.h +do : + ac_fn_c_check_header_mongrel "$LINENO" "sys/ldr.h" "ac_cv_header_sys_ldr_h" "$ac_includes_default" +if test "x$ac_cv_header_sys_ldr_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_SYS_LDR_H 1 +_ACEOF + +fi + +done + +if test "$ac_cv_header_sys_ldr_h" = "no"; then + have_loadquery=no +else + if test -n "${with_target_subdir}"; then + # When built as a GCC target library, we can't do a link test. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <sys/ldr.h> + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "loadquery" >/dev/null 2>&1; then : + have_loadquery=yes +else + have_loadquery=no +fi +rm -f conftest* + + else + ac_fn_c_check_func "$LINENO" "loadquery" "ac_cv_func_loadquery" +if test "x$ac_cv_func_loadquery" = xyes; then : + have_loadquery=yes +else + have_loadquery=no +fi + + fi +fi +if test "$have_loadquery" = "yes"; then + +$as_echo "#define HAVE_LOADQUERY 1" >>confdefs.h + +fi + +# Check for the fcntl function. +if test -n "${with_target_subdir}"; then + case "${host}" in + *-*-mingw*) have_fcntl=no ;; + *) have_fcntl=yes ;; + esac +else + ac_fn_c_check_func "$LINENO" "fcntl" "ac_cv_func_fcntl" +if test "x$ac_cv_func_fcntl" = xyes; then : + have_fcntl=yes +else + have_fcntl=no +fi + +fi +if test "$have_fcntl" = "yes"; then + +$as_echo "#define HAVE_FCNTL 1" >>confdefs.h + +fi + +ac_fn_c_check_decl "$LINENO" "strnlen" "ac_cv_have_decl_strnlen" "$ac_includes_default" +if test "x$ac_cv_have_decl_strnlen" = xyes; then : + ac_have_decl=1 +else + ac_have_decl=0 +fi + +cat >>confdefs.h <<_ACEOF +#define HAVE_DECL_STRNLEN $ac_have_decl +_ACEOF +ac_fn_c_check_decl "$LINENO" "getpagesize" "ac_cv_have_decl_getpagesize" "$ac_includes_default" +if test "x$ac_cv_have_decl_getpagesize" = xyes; then : + ac_have_decl=1 +else + ac_have_decl=0 +fi + +cat >>confdefs.h <<_ACEOF +#define HAVE_DECL_GETPAGESIZE $ac_have_decl +_ACEOF + +for ac_func in lstat readlink +do : + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` +ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" +if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF + +fi +done + + +# Check for getexecname function. +if test -n "${with_target_subdir}"; then + case "${host}" in + *-*-solaris2*) have_getexecname=yes ;; + *) have_getexecname=no ;; + esac +else + ac_fn_c_check_func "$LINENO" "getexecname" "ac_cv_func_getexecname" +if test "x$ac_cv_func_getexecname" = xyes; then : + have_getexecname=yes +else + have_getexecname=no +fi + +fi +if test "$have_getexecname" = "yes"; then + +$as_echo "#define HAVE_GETEXECNAME 1" >>confdefs.h + +fi + +# Check for sysctl definitions. + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for KERN_PROC" >&5 +$as_echo_n "checking for KERN_PROC... " >&6; } +if ${libbacktrace_cv_proc+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include <sys/types.h> +#include <sys/sysctl.h> + +int +main () +{ +int mib0 = CTL_KERN; int mib1 = KERN_PROC; int mib2 = KERN_PROC_PATHNAME; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + libbacktrace_cv_proc=yes +else + libbacktrace_cv_proc=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libbacktrace_cv_proc" >&5 +$as_echo "$libbacktrace_cv_proc" >&6; } +if test "$libbacktrace_cv_proc" = "yes"; then + +$as_echo "#define HAVE_KERN_PROC 1" >>confdefs.h + +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for KERN_PROG_ARGS" >&5 +$as_echo_n "checking for KERN_PROG_ARGS... " >&6; } +if ${libbacktrace_cv_procargs+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include <sys/types.h> +#include <sys/sysctl.h> + +int +main () +{ +int mib0 = CTL_KERN; int mib1 = KERN_PROC_ARGS; int mib2 = KERN_PROC_PATHNAME; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + libbacktrace_cv_procargs=yes +else + libbacktrace_cv_procargs=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libbacktrace_cv_procargs" >&5 +$as_echo "$libbacktrace_cv_procargs" >&6; } +if test "$libbacktrace_cv_procargs" = "yes"; then + +$as_echo "#define HAVE_KERN_PROC_ARGS 1" >>confdefs.h + +fi + +# Check for the clock_gettime function. +for ac_func in clock_gettime +do : + ac_fn_c_check_func "$LINENO" "clock_gettime" "ac_cv_func_clock_gettime" +if test "x$ac_cv_func_clock_gettime" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_CLOCK_GETTIME 1 +_ACEOF + +fi +done + +clock_gettime_link= +# At least for glibc, clock_gettime is in librt. But don't +# pull that in if it still doesn't give us the function we want. This +# test is copied from libgomp, and modified to not link in -lrt as +# we're using this for test timing only. +if test "$ac_cv_func_clock_gettime" = no; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5 +$as_echo_n "checking for clock_gettime in -lrt... " >&6; } +if ${ac_cv_lib_rt_clock_gettime+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lrt $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char clock_gettime (); +int +main () +{ +return clock_gettime (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_rt_clock_gettime=yes +else + ac_cv_lib_rt_clock_gettime=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5 +$as_echo "$ac_cv_lib_rt_clock_gettime" >&6; } +if test "x$ac_cv_lib_rt_clock_gettime" = xyes; then : + CLOCK_GETTIME_LINK=-lrt + +$as_echo "#define HAVE_CLOCK_GETTIME 1" >>confdefs.h + +fi + +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -pthread is supported" >&5 +$as_echo_n "checking whether -pthread is supported... " >&6; } +if ${libgo_cv_lib_pthread+:} false; then : + $as_echo_n "(cached) " >&6 +else + CFLAGS_hold=$CFLAGS +CFLAGS="$CFLAGS -pthread" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int i; +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + libgo_cv_lib_pthread=yes +else + libgo_cv_lib_pthread=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +CFLAGS=$CFLAGS_hold +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libgo_cv_lib_pthread" >&5 +$as_echo "$libgo_cv_lib_pthread" >&6; } +PTHREAD_CFLAGS= +if test "$libgo_cv_lib_pthread" = yes; then + PTHREAD_CFLAGS=-pthread +fi + + + if test "$libgo_cv_lib_pthread" = yes; then + HAVE_PTHREAD_TRUE= + HAVE_PTHREAD_FALSE='#' +else + HAVE_PTHREAD_TRUE='#' + HAVE_PTHREAD_FALSE= +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -gdwarf-5 is supported" >&5 +$as_echo_n "checking whether -gdwarf-5 is supported... " >&6; } +if ${libbacktrace_cv_lib_dwarf5+:} false; then : + $as_echo_n "(cached) " >&6 +else + CFLAGS_hold=$CFLAGS +CFLAGS="$CFLAGS -gdwarf-5" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int i; +int +main () +{ +return 0; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + libbacktrace_cv_lib_dwarf5=yes +else + libbacktrace_cv_lib_dwarf5=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +CFLAGS=$CFLAGS_hold +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libbacktrace_cv_lib_dwarf5" >&5 +$as_echo "$libbacktrace_cv_lib_dwarf5" >&6; } + if test "$libbacktrace_cv_lib_dwarf5" = yes; then + HAVE_DWARF5_TRUE= + HAVE_DWARF5_FALSE='#' +else + HAVE_DWARF5_TRUE='#' + HAVE_DWARF5_FALSE= +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for compress in -lz" >&5 +$as_echo_n "checking for compress in -lz... " >&6; } +if ${ac_cv_lib_z_compress+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lz $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char compress (); +int +main () +{ +return compress (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_z_compress=yes +else + ac_cv_lib_z_compress=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_z_compress" >&5 +$as_echo "$ac_cv_lib_z_compress" >&6; } +if test "x$ac_cv_lib_z_compress" = xyes; then : + +$as_echo "#define HAVE_ZLIB 1" >>confdefs.h + +fi + + if test "$ac_cv_lib_z_compress" = yes; then + HAVE_ZLIB_TRUE= + HAVE_ZLIB_FALSE='#' +else + HAVE_ZLIB_TRUE='#' + HAVE_ZLIB_FALSE= +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether --compress-debug-sections is supported" >&5 +$as_echo_n "checking whether --compress-debug-sections is supported... " >&6; } +if ${libgo_cv_ld_compress+:} false; then : + $as_echo_n "(cached) " >&6 +else + LDFLAGS_hold=$LDFLAGS +LDFLAGS="$LDFLAGS -Wl,--compress-debug-sections=zlib-gnu" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + libgo_cv_ld_compress=yes +else + libgo_cv_ld_compress=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LDFLAGS=$LDFLAGS_hold +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libgo_cv_ld_compress" >&5 +$as_echo "$libgo_cv_ld_compress" >&6; } + if test "$libgo_cv_ld_compress" = yes; then + HAVE_COMPRESSED_DEBUG_TRUE= + HAVE_COMPRESSED_DEBUG_FALSE='#' +else + HAVE_COMPRESSED_DEBUG_TRUE='#' + HAVE_COMPRESSED_DEBUG_FALSE= +fi + + + +# Extract the first word of "objcopy", so it can be a program name with args. +set dummy objcopy; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OBJCOPY+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OBJCOPY"; then + ac_cv_prog_OBJCOPY="$OBJCOPY" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OBJCOPY="objcopy" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OBJCOPY=$ac_cv_prog_OBJCOPY +if test -n "$OBJCOPY"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJCOPY" >&5 +$as_echo "$OBJCOPY" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +# Extract the first word of "readelf", so it can be a program name with args. +set dummy readelf; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_READELF+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$READELF"; then + ac_cv_prog_READELF="$READELF" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_READELF="readelf" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +READELF=$ac_cv_prog_READELF +if test -n "$READELF"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $READELF" >&5 +$as_echo "$READELF" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether objcopy supports debuglink" >&5 +$as_echo_n "checking whether objcopy supports debuglink... " >&6; } +if ${libbacktrace_cv_objcopy_debuglink+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "${with_target_subdir}"; then + libbacktrace_cv_objcopy_debuglink=no +elif ! test -n "${OBJCOPY}"; then + libbacktrace_cv_objcopy_debuglink=no +elif ${OBJCOPY} --help | fgrep add-gnu-debuglink >/dev/null 2>&1; then + libbacktrace_cv_objcopy_debuglink=yes +else + libbacktrace_cv_objcopy_debuglink=no +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libbacktrace_cv_objcopy_debuglink" >&5 +$as_echo "$libbacktrace_cv_objcopy_debuglink" >&6; } + if test "$libbacktrace_cv_objcopy_debuglink" = yes; then + HAVE_OBJCOPY_DEBUGLINK_TRUE= + HAVE_OBJCOPY_DEBUGLINK_FALSE='#' +else + HAVE_OBJCOPY_DEBUGLINK_TRUE='#' + HAVE_OBJCOPY_DEBUGLINK_FALSE= +fi + + + +# Extract the first word of "dsymutil", so it can be a program name with args. +set dummy dsymutil; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_DSYMUTIL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$DSYMUTIL"; then + ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_DSYMUTIL="dsymutil" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +DSYMUTIL=$ac_cv_prog_DSYMUTIL +if test -n "$DSYMUTIL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5 +$as_echo "$DSYMUTIL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + if test -n "${DSYMUTIL}" -a "$FORMAT_FILE" = "macho.lo"; then + USE_DSYMUTIL_TRUE= + USE_DSYMUTIL_FALSE='#' +else + USE_DSYMUTIL_TRUE='#' + USE_DSYMUTIL_FALSE= +fi + + + +# Extract the first word of "nm", so it can be a program name with args. +set dummy nm; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_NM+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$NM"; then + ac_cv_prog_NM="$NM" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_NM="nm" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +NM=$ac_cv_prog_NM +if test -n "$NM"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NM" >&5 +$as_echo "$NM" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + +# Extract the first word of "xz", so it can be a program name with args. +set dummy xz; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_XZ+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$XZ"; then + ac_cv_prog_XZ="$XZ" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_XZ="xz" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +XZ=$ac_cv_prog_XZ +if test -n "$XZ"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $XZ" >&5 +$as_echo "$XZ" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + if test "$XZ" != ""; then + HAVE_XZ_TRUE= + HAVE_XZ_FALSE='#' +else + HAVE_XZ_TRUE='#' + HAVE_XZ_FALSE= +fi + +# Extract the first word of "comm", so it can be a program name with args. +set dummy comm; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_COMM+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$COMM"; then + ac_cv_prog_COMM="$COMM" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_COMM="comm" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +COMM=$ac_cv_prog_COMM +if test -n "$COMM"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $COMM" >&5 +$as_echo "$COMM" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + if test "$COMM" != ""; then + HAVE_COMM_TRUE= + HAVE_COMM_FALSE='#' +else + HAVE_COMM_TRUE='#' + HAVE_COMM_FALSE= +fi + + + if test "${with_target_subdir}" = "" -a "$FORMAT_FILE" = "elf.lo" -a "${OBJCOPY}" != "" -a "${NM}" != "" -a "${XZ}" != "" -a "${COMM}" != ""; then + HAVE_MINIDEBUG_TRUE= + HAVE_MINIDEBUG_FALSE='#' +else + HAVE_MINIDEBUG_TRUE='#' + HAVE_MINIDEBUG_FALSE= +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for lzma_auto_decoder in -llzma" >&5 +$as_echo_n "checking for lzma_auto_decoder in -llzma... " >&6; } +if ${ac_cv_lib_lzma_lzma_auto_decoder+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-llzma $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char lzma_auto_decoder (); +int +main () +{ +return lzma_auto_decoder (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_lzma_lzma_auto_decoder=yes +else + ac_cv_lib_lzma_lzma_auto_decoder=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_lzma_lzma_auto_decoder" >&5 +$as_echo "$ac_cv_lib_lzma_lzma_auto_decoder" >&6; } +if test "x$ac_cv_lib_lzma_lzma_auto_decoder" = xyes; then : + +$as_echo "#define HAVE_LIBLZMA 1" >>confdefs.h + +fi + + if test "$ac_cv_lib_lzma_lzma_auto_decoder" = yes; then + HAVE_LIBLZMA_TRUE= + HAVE_LIBLZMA_FALSE='#' +else + HAVE_LIBLZMA_TRUE='#' + HAVE_LIBLZMA_FALSE= +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether tests can run" >&5 +$as_echo_n "checking whether tests can run... " >&6; } +if ${libbacktrace_cv_sys_native+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test "$cross_compiling" = yes; then : + libbacktrace_cv_sys_native=no +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +return 0; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + libbacktrace_cv_sys_native=yes +else + libbacktrace_cv_sys_native=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libbacktrace_cv_sys_native" >&5 +$as_echo "$libbacktrace_cv_sys_native" >&6; } + if test "$libbacktrace_cv_sys_native" = "yes"; then + NATIVE_TRUE= + NATIVE_FALSE='#' +else + NATIVE_TRUE='#' + NATIVE_FALSE= +fi + + +if test "${multilib}" = "yes"; then + multilib_arg="--enable-multilib" +else + multilib_arg= +fi + +ac_config_files="$ac_config_files Makefile backtrace-supported.h" + +ac_config_files="$ac_config_files install-debuginfo-for-buildid.sh" + + +# We need multilib support, but only if configuring for the target. +ac_config_commands="$ac_config_commands default" + + +cat >confcache <<\_ACEOF +# This file is a shell script that caches the results of configure +# tests run on this system so they can be shared between configure +# scripts and configure runs, see configure's option --config-cache. +# It is not useful on other systems. If it contains results you don't +# want to keep, you may remove or edit it. +# +# config.status only pays attention to the cache file if you give it +# the --recheck option to rerun configure. +# +# `ac_cv_env_foo' variables (set or unset) will be overridden when +# loading this file, other *unset* `ac_cv_foo' will be assigned the +# following values. + +_ACEOF + +# The following way of writing the cache mishandles newlines in values, +# but we know of no workaround that is simple, portable, and efficient. +# So, we kill variables containing newlines. +# Ultrix sh set writes to stderr and can't be redirected directly, +# and sets the high bit in the cache file unless we assign to the vars. +( + for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do + eval ac_val=\$$ac_var + case $ac_val in #( + *${as_nl}*) + case $ac_var in #( + *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5 +$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;; + esac + case $ac_var in #( + _ | IFS | as_nl) ;; #( + BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #( + *) { eval $ac_var=; unset $ac_var;} ;; + esac ;; + esac + done + + (set) 2>&1 | + case $as_nl`(ac_space=' '; set) 2>&1` in #( + *${as_nl}ac_space=\ *) + # `set' does not quote correctly, so add quotes: double-quote + # substitution turns \\\\ into \\, and sed turns \\ into \. + sed -n \ + "s/'/'\\\\''/g; + s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p" + ;; #( + *) + # `set' quotes correctly as required by POSIX, so do not add quotes. + sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p" + ;; + esac | + sort +) | + sed ' + /^ac_cv_env_/b end + t clear + :clear + s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/ + t end + s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/ + :end' >>confcache +if diff "$cache_file" confcache >/dev/null 2>&1; then :; else + if test -w "$cache_file"; then + if test "x$cache_file" != "x/dev/null"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5 +$as_echo "$as_me: updating cache $cache_file" >&6;} + if test ! -f "$cache_file" || test -h "$cache_file"; then + cat confcache >"$cache_file" + else + case $cache_file in #( + */* | ?:*) + mv -f confcache "$cache_file"$$ && + mv -f "$cache_file"$$ "$cache_file" ;; #( + *) + mv -f confcache "$cache_file" ;; + esac + fi + fi + else + { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5 +$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;} + fi +fi +rm -f confcache + +test "x$prefix" = xNONE && prefix=$ac_default_prefix +# Let make expand exec_prefix. +test "x$exec_prefix" = xNONE && exec_prefix='${prefix}' + +DEFS=-DHAVE_CONFIG_H + +ac_libobjs= +ac_ltlibobjs= +U= +for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue + # 1. Remove the extension, and $U if already installed. + ac_script='s/\$U\././;s/\.o$//;s/\.obj$//' + ac_i=`$as_echo "$ac_i" | sed "$ac_script"` + # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR + # will be set to the directory where LIBOBJS objects are built. + as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext" + as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo' +done +LIBOBJS=$ac_libobjs + +LTLIBOBJS=$ac_ltlibobjs + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking that generated files are newer than configure" >&5 +$as_echo_n "checking that generated files are newer than configure... " >&6; } + if test -n "$am_sleep_pid"; then + # Hide warnings about reused PIDs. + wait $am_sleep_pid 2>/dev/null + fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: done" >&5 +$as_echo "done" >&6; } + if test -n "$EXEEXT"; then + am__EXEEXT_TRUE= + am__EXEEXT_FALSE='#' +else + am__EXEEXT_TRUE='#' + am__EXEEXT_FALSE= +fi + +if test -z "${MAINTAINER_MODE_TRUE}" && test -z "${MAINTAINER_MODE_FALSE}"; then + as_fn_error $? "conditional \"MAINTAINER_MODE\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_DWZ_TRUE}" && test -z "${HAVE_DWZ_FALSE}"; then + as_fn_error $? "conditional \"HAVE_DWZ\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_ELF_TRUE}" && test -z "${HAVE_ELF_FALSE}"; then + as_fn_error $? "conditional \"HAVE_ELF\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_PTHREAD_TRUE}" && test -z "${HAVE_PTHREAD_FALSE}"; then + as_fn_error $? "conditional \"HAVE_PTHREAD\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_DWARF5_TRUE}" && test -z "${HAVE_DWARF5_FALSE}"; then + as_fn_error $? "conditional \"HAVE_DWARF5\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_ZLIB_TRUE}" && test -z "${HAVE_ZLIB_FALSE}"; then + as_fn_error $? "conditional \"HAVE_ZLIB\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_COMPRESSED_DEBUG_TRUE}" && test -z "${HAVE_COMPRESSED_DEBUG_FALSE}"; then + as_fn_error $? "conditional \"HAVE_COMPRESSED_DEBUG\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_OBJCOPY_DEBUGLINK_TRUE}" && test -z "${HAVE_OBJCOPY_DEBUGLINK_FALSE}"; then + as_fn_error $? "conditional \"HAVE_OBJCOPY_DEBUGLINK\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${USE_DSYMUTIL_TRUE}" && test -z "${USE_DSYMUTIL_FALSE}"; then + as_fn_error $? "conditional \"USE_DSYMUTIL\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_XZ_TRUE}" && test -z "${HAVE_XZ_FALSE}"; then + as_fn_error $? "conditional \"HAVE_XZ\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_COMM_TRUE}" && test -z "${HAVE_COMM_FALSE}"; then + as_fn_error $? "conditional \"HAVE_COMM\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_MINIDEBUG_TRUE}" && test -z "${HAVE_MINIDEBUG_FALSE}"; then + as_fn_error $? "conditional \"HAVE_MINIDEBUG\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_LIBLZMA_TRUE}" && test -z "${HAVE_LIBLZMA_FALSE}"; then + as_fn_error $? "conditional \"HAVE_LIBLZMA\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${NATIVE_TRUE}" && test -z "${NATIVE_FALSE}"; then + as_fn_error $? "conditional \"NATIVE\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi + +: "${CONFIG_STATUS=./config.status}" +ac_write_fail=0 +ac_clean_files_save=$ac_clean_files +ac_clean_files="$ac_clean_files $CONFIG_STATUS" +{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5 +$as_echo "$as_me: creating $CONFIG_STATUS" >&6;} +as_write_fail=0 +cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1 +#! $SHELL +# Generated by $as_me. +# Run this file to recreate the current configuration. +# Compiler output produced by configure, useful for debugging +# configure, is in config.log if it exists. + +debug=false +ac_cs_recheck=false +ac_cs_silent=false + +SHELL=\${CONFIG_SHELL-$SHELL} +export SHELL +_ASEOF +cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1 +## -------------------- ## +## M4sh Initialization. ## +## -------------------- ## + +# Be more Bourne compatible +DUALCASE=1; export DUALCASE # for MKS sh +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi + + +as_nl=' +' +export as_nl +# Printing a long string crashes Solaris 7 /usr/bin/printf. +as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo +# Prefer a ksh shell builtin over an external printf program on Solaris, +# but without wasting forks for bash or zsh. +if test -z "$BASH_VERSION$ZSH_VERSION" \ + && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='print -r --' + as_echo_n='print -rn --' +elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='printf %s\n' + as_echo_n='printf %s' +else + if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then + as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"' + as_echo_n='/usr/ucb/echo -n' + else + as_echo_body='eval expr "X$1" : "X\\(.*\\)"' + as_echo_n_body='eval + arg=$1; + case $arg in #( + *"$as_nl"*) + expr "X$arg" : "X\\(.*\\)$as_nl"; + arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;; + esac; + expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl" + ' + export as_echo_n_body + as_echo_n='sh -c $as_echo_n_body as_echo' + fi + export as_echo_body + as_echo='sh -c $as_echo_body as_echo' +fi + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + +# IFS +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent editors from complaining about space-tab. +# (If _AS_PATH_WALK were called with IFS unset, it would disable word +# splitting by setting IFS to empty value.) +IFS=" "" $as_nl" + +# Find who we are. Look in the path if we contain no directory separator. +as_myself= +case $0 in #(( + *[\\/]* ) as_myself=$0 ;; + *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break + done +IFS=$as_save_IFS + + ;; +esac +# We did not find ourselves, most probably we were run as `sh COMMAND' +# in which case we are not to be found in the path. +if test "x$as_myself" = x; then + as_myself=$0 +fi +if test ! -f "$as_myself"; then + $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 + exit 1 +fi + +# Unset variables that we do not need and which cause bugs (e.g. in +# pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1" +# suppresses any "Segmentation fault" message there. '((' could +# trigger a bug in pdksh 5.2.14. +for as_var in BASH_ENV ENV MAIL MAILPATH +do eval test x\${$as_var+set} = xset \ + && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || : +done +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +LC_ALL=C +export LC_ALL +LANGUAGE=C +export LANGUAGE + +# CDPATH. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + + +# as_fn_error STATUS ERROR [LINENO LOG_FD] +# ---------------------------------------- +# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are +# provided, also output the error to LOG_FD, referencing LINENO. Then exit the +# script with STATUS, using 1 if that was 0. +as_fn_error () +{ + as_status=$1; test $as_status -eq 0 && as_status=1 + if test "$4"; then + as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 + fi + $as_echo "$as_me: error: $2" >&2 + as_fn_exit $as_status +} # as_fn_error + + +# as_fn_set_status STATUS +# ----------------------- +# Set $? to STATUS, without forking. +as_fn_set_status () +{ + return $1 +} # as_fn_set_status + +# as_fn_exit STATUS +# ----------------- +# Exit the shell with STATUS, even in a "trap 0" or "set -e" context. +as_fn_exit () +{ + set +e + as_fn_set_status $1 + exit $1 +} # as_fn_exit + +# as_fn_unset VAR +# --------------- +# Portably unset VAR. +as_fn_unset () +{ + { eval $1=; unset $1;} +} +as_unset=as_fn_unset +# as_fn_append VAR VALUE +# ---------------------- +# Append the text in VALUE to the end of the definition contained in VAR. Take +# advantage of any shell optimizations that allow amortized linear growth over +# repeated appends, instead of the typical quadratic growth present in naive +# implementations. +if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then : + eval 'as_fn_append () + { + eval $1+=\$2 + }' +else + as_fn_append () + { + eval $1=\$$1\$2 + } +fi # as_fn_append + +# as_fn_arith ARG... +# ------------------ +# Perform arithmetic evaluation on the ARGs, and store the result in the +# global $as_val. Take advantage of shells that can avoid forks. The arguments +# must be portable across $(()) and expr. +if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then : + eval 'as_fn_arith () + { + as_val=$(( $* )) + }' +else + as_fn_arith () + { + as_val=`expr "$@" || test $? -eq 1` + } +fi # as_fn_arith + + +if expr a : '\(a\)' >/dev/null 2>&1 && + test "X`expr 00001 : '.*\(...\)'`" = X001; then + as_expr=expr +else + as_expr=false +fi + +if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + +if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then + as_dirname=dirname +else + as_dirname=false +fi + +as_me=`$as_basename -- "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + +ECHO_C= ECHO_N= ECHO_T= +case `echo -n x` in #((((( +-n*) + case `echo 'xy\c'` in + *c*) ECHO_T=' ';; # ECHO_T is single tab character. + xy) ECHO_C='\c';; + *) echo `echo ksh88 bug on AIX 6.1` > /dev/null + ECHO_T=' ';; + esac;; +*) + ECHO_N='-n';; +esac + +rm -f conf$$ conf$$.exe conf$$.file +if test -d conf$$.dir; then + rm -f conf$$.dir/conf$$.file +else + rm -f conf$$.dir + mkdir conf$$.dir 2>/dev/null +fi +if (echo >conf$$.file) 2>/dev/null; then + if ln -s conf$$.file conf$$ 2>/dev/null; then + as_ln_s='ln -s' + # ... but there are two gotchas: + # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail. + # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable. + # In both cases, we have to default to `cp -pR'. + ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe || + as_ln_s='cp -pR' + elif ln conf$$.file conf$$ 2>/dev/null; then + as_ln_s=ln + else + as_ln_s='cp -pR' + fi +else + as_ln_s='cp -pR' +fi +rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file +rmdir conf$$.dir 2>/dev/null + + +# as_fn_mkdir_p +# ------------- +# Create "$as_dir" as a directory, including parents if necessary. +as_fn_mkdir_p () +{ + + case $as_dir in #( + -*) as_dir=./$as_dir;; + esac + test -d "$as_dir" || eval $as_mkdir_p || { + as_dirs= + while :; do + case $as_dir in #( + *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'( + *) as_qdir=$as_dir;; + esac + as_dirs="'$as_qdir' $as_dirs" + as_dir=`$as_dirname -- "$as_dir" || +$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$as_dir" : 'X\(//\)[^/]' \| \ + X"$as_dir" : 'X\(//\)$' \| \ + X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$as_dir" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + test -d "$as_dir" && break + done + test -z "$as_dirs" || eval "mkdir $as_dirs" + } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir" + + +} # as_fn_mkdir_p +if mkdir -p . 2>/dev/null; then + as_mkdir_p='mkdir -p "$as_dir"' +else + test -d ./-p && rmdir ./-p + as_mkdir_p=false +fi + + +# as_fn_executable_p FILE +# ----------------------- +# Test if FILE is an executable regular file. +as_fn_executable_p () +{ + test -f "$1" && test -x "$1" +} # as_fn_executable_p +as_test_x='test -x' +as_executable_p=as_fn_executable_p + +# Sed expression to map a string onto a valid CPP name. +as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'" + +# Sed expression to map a string onto a valid variable name. +as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'" + + +exec 6>&1 +## ----------------------------------- ## +## Main body of $CONFIG_STATUS script. ## +## ----------------------------------- ## +_ASEOF +test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1 + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +# Save the log message, to keep $0 and so on meaningful, and to +# report actual input values of CONFIG_FILES etc. instead of their +# values after options handling. +ac_log=" +This file was extended by package-unused $as_me version-unused, which was +generated by GNU Autoconf 2.69. Invocation command line was + + CONFIG_FILES = $CONFIG_FILES + CONFIG_HEADERS = $CONFIG_HEADERS + CONFIG_LINKS = $CONFIG_LINKS + CONFIG_COMMANDS = $CONFIG_COMMANDS + $ $0 $@ + +on `(hostname || uname -n) 2>/dev/null | sed 1q` +" + +_ACEOF + +case $ac_config_files in *" +"*) set x $ac_config_files; shift; ac_config_files=$*;; +esac + +case $ac_config_headers in *" +"*) set x $ac_config_headers; shift; ac_config_headers=$*;; +esac + + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +# Files that config.status was made for. +config_files="$ac_config_files" +config_headers="$ac_config_headers" +config_commands="$ac_config_commands" + +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +ac_cs_usage="\ +\`$as_me' instantiates files and other configuration actions +from templates according to the current configuration. Unless the files +and actions are specified as TAGs, all are instantiated by default. + +Usage: $0 [OPTION]... [TAG]... + + -h, --help print this help, then exit + -V, --version print version number and configuration settings, then exit + --config print configuration, then exit + -q, --quiet, --silent + do not print progress messages + -d, --debug don't remove temporary files + --recheck update $as_me by reconfiguring in the same conditions + --file=FILE[:TEMPLATE] + instantiate the configuration file FILE + --header=FILE[:TEMPLATE] + instantiate the configuration header FILE + +Configuration files: +$config_files + +Configuration headers: +$config_headers + +Configuration commands: +$config_commands + +Report bugs to the package provider." + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`" +ac_cs_version="\\ +package-unused config.status version-unused +configured by $0, generated by GNU Autoconf 2.69, + with options \\"\$ac_cs_config\\" + +Copyright (C) 2012 Free Software Foundation, Inc. +This config.status script is free software; the Free Software Foundation +gives unlimited permission to copy, distribute and modify it." + +ac_pwd='$ac_pwd' +srcdir='$srcdir' +INSTALL='$INSTALL' +MKDIR_P='$MKDIR_P' +AWK='$AWK' +test -n "\$AWK" || AWK=awk +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +# The default lists apply if the user does not specify any file. +ac_need_defaults=: +while test $# != 0 +do + case $1 in + --*=?*) + ac_option=`expr "X$1" : 'X\([^=]*\)='` + ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'` + ac_shift=: + ;; + --*=) + ac_option=`expr "X$1" : 'X\([^=]*\)='` + ac_optarg= + ac_shift=: + ;; + *) + ac_option=$1 + ac_optarg=$2 + ac_shift=shift + ;; + esac + + case $ac_option in + # Handling of the options. + -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r) + ac_cs_recheck=: ;; + --version | --versio | --versi | --vers | --ver | --ve | --v | -V ) + $as_echo "$ac_cs_version"; exit ;; + --config | --confi | --conf | --con | --co | --c ) + $as_echo "$ac_cs_config"; exit ;; + --debug | --debu | --deb | --de | --d | -d ) + debug=: ;; + --file | --fil | --fi | --f ) + $ac_shift + case $ac_optarg in + *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;; + '') as_fn_error $? "missing file argument" ;; + esac + as_fn_append CONFIG_FILES " '$ac_optarg'" + ac_need_defaults=false;; + --header | --heade | --head | --hea ) + $ac_shift + case $ac_optarg in + *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;; + esac + as_fn_append CONFIG_HEADERS " '$ac_optarg'" + ac_need_defaults=false;; + --he | --h) + # Conflict between --help and --header + as_fn_error $? "ambiguous option: \`$1' +Try \`$0 --help' for more information.";; + --help | --hel | -h ) + $as_echo "$ac_cs_usage"; exit ;; + -q | -quiet | --quiet | --quie | --qui | --qu | --q \ + | -silent | --silent | --silen | --sile | --sil | --si | --s) + ac_cs_silent=: ;; + + # This is an error. + -*) as_fn_error $? "unrecognized option: \`$1' +Try \`$0 --help' for more information." ;; + + *) as_fn_append ac_config_targets " $1" + ac_need_defaults=false ;; + + esac + shift +done + +ac_configure_extra_args= + +if $ac_cs_silent; then + exec 6>/dev/null + ac_configure_extra_args="$ac_configure_extra_args --silent" +fi + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +if \$ac_cs_recheck; then + set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion + shift + \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6 + CONFIG_SHELL='$SHELL' + export CONFIG_SHELL + exec "\$@" +fi + +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +exec 5>>config.log +{ + echo + sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX +## Running $as_me. ## +_ASBOX + $as_echo "$ac_log" +} >&5 + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +# +# INIT-COMMANDS +# + +srcdir="$srcdir" +host="$host" +target="$target" +with_multisubdir="$with_multisubdir" 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"$hardcode_libdir_separator" | $SED "$delay_single_quote_subst"`' +hardcode_direct='`$ECHO "$hardcode_direct" | $SED "$delay_single_quote_subst"`' +hardcode_direct_absolute='`$ECHO "$hardcode_direct_absolute" | $SED "$delay_single_quote_subst"`' +hardcode_minus_L='`$ECHO "$hardcode_minus_L" | $SED "$delay_single_quote_subst"`' +hardcode_shlibpath_var='`$ECHO "$hardcode_shlibpath_var" | $SED "$delay_single_quote_subst"`' +hardcode_automatic='`$ECHO "$hardcode_automatic" | $SED "$delay_single_quote_subst"`' +inherit_rpath='`$ECHO "$inherit_rpath" | $SED "$delay_single_quote_subst"`' +link_all_deplibs='`$ECHO "$link_all_deplibs" | $SED "$delay_single_quote_subst"`' +fix_srcfile_path='`$ECHO "$fix_srcfile_path" | $SED "$delay_single_quote_subst"`' +always_export_symbols='`$ECHO "$always_export_symbols" | $SED "$delay_single_quote_subst"`' +export_symbols_cmds='`$ECHO "$export_symbols_cmds" | $SED "$delay_single_quote_subst"`' +exclude_expsyms='`$ECHO "$exclude_expsyms" | $SED "$delay_single_quote_subst"`' +include_expsyms='`$ECHO "$include_expsyms" | $SED "$delay_single_quote_subst"`' +prelink_cmds='`$ECHO "$prelink_cmds" | $SED "$delay_single_quote_subst"`' +file_list_spec='`$ECHO "$file_list_spec" | $SED "$delay_single_quote_subst"`' +variables_saved_for_relink='`$ECHO "$variables_saved_for_relink" | $SED "$delay_single_quote_subst"`' +need_lib_prefix='`$ECHO "$need_lib_prefix" | $SED "$delay_single_quote_subst"`' +need_version='`$ECHO "$need_version" | $SED "$delay_single_quote_subst"`' +version_type='`$ECHO "$version_type" | $SED "$delay_single_quote_subst"`' +runpath_var='`$ECHO "$runpath_var" | $SED "$delay_single_quote_subst"`' +shlibpath_var='`$ECHO "$shlibpath_var" | $SED "$delay_single_quote_subst"`' +shlibpath_overrides_runpath='`$ECHO "$shlibpath_overrides_runpath" | $SED "$delay_single_quote_subst"`' +libname_spec='`$ECHO "$libname_spec" | $SED "$delay_single_quote_subst"`' +library_names_spec='`$ECHO "$library_names_spec" | $SED "$delay_single_quote_subst"`' +soname_spec='`$ECHO "$soname_spec" | $SED "$delay_single_quote_subst"`' +install_override_mode='`$ECHO "$install_override_mode" | $SED "$delay_single_quote_subst"`' +postinstall_cmds='`$ECHO "$postinstall_cmds" | $SED "$delay_single_quote_subst"`' +postuninstall_cmds='`$ECHO "$postuninstall_cmds" | $SED "$delay_single_quote_subst"`' +finish_cmds='`$ECHO "$finish_cmds" | $SED "$delay_single_quote_subst"`' +finish_eval='`$ECHO "$finish_eval" | $SED "$delay_single_quote_subst"`' +hardcode_into_libs='`$ECHO "$hardcode_into_libs" | $SED "$delay_single_quote_subst"`' +sys_lib_search_path_spec='`$ECHO "$sys_lib_search_path_spec" | $SED "$delay_single_quote_subst"`' +sys_lib_dlsearch_path_spec='`$ECHO "$sys_lib_dlsearch_path_spec" | $SED "$delay_single_quote_subst"`' +hardcode_action='`$ECHO "$hardcode_action" | $SED "$delay_single_quote_subst"`' +enable_dlopen='`$ECHO "$enable_dlopen" | $SED "$delay_single_quote_subst"`' +enable_dlopen_self='`$ECHO "$enable_dlopen_self" | $SED "$delay_single_quote_subst"`' +enable_dlopen_self_static='`$ECHO "$enable_dlopen_self_static" | $SED "$delay_single_quote_subst"`' +old_striplib='`$ECHO "$old_striplib" | $SED "$delay_single_quote_subst"`' +striplib='`$ECHO "$striplib" | $SED "$delay_single_quote_subst"`' + +LTCC='$LTCC' +LTCFLAGS='$LTCFLAGS' +compiler='$compiler_DEFAULT' + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +\$1 +_LTECHO_EOF' +} + +# Quote evaled strings. +for var in SHELL \ +ECHO \ +SED \ +GREP \ +EGREP \ +FGREP \ +LD \ +NM \ +LN_S \ +lt_SP2NL \ +lt_NL2SP \ +reload_flag \ +OBJDUMP \ +deplibs_check_method \ +file_magic_cmd \ +AR \ +AR_FLAGS \ +STRIP \ +RANLIB \ +CC \ +CFLAGS \ +compiler \ +lt_cv_sys_global_symbol_pipe \ +lt_cv_sys_global_symbol_to_cdecl \ +lt_cv_sys_global_symbol_to_c_name_address \ +lt_cv_sys_global_symbol_to_c_name_address_lib_prefix \ +lt_prog_compiler_no_builtin_flag \ +lt_prog_compiler_wl \ +lt_prog_compiler_pic \ +lt_prog_compiler_static \ +lt_cv_prog_compiler_c_o \ +need_locks \ +DSYMUTIL \ +NMEDIT \ +LIPO \ +OTOOL \ +OTOOL64 \ +shrext_cmds \ +export_dynamic_flag_spec \ +whole_archive_flag_spec \ +compiler_needs_object \ +with_gnu_ld \ +allow_undefined_flag \ +no_undefined_flag \ +hardcode_libdir_flag_spec \ +hardcode_libdir_flag_spec_ld \ +hardcode_libdir_separator \ +fix_srcfile_path \ +exclude_expsyms \ +include_expsyms \ +file_list_spec \ +variables_saved_for_relink \ +libname_spec \ +library_names_spec \ +soname_spec \ +install_override_mode \ +finish_eval \ +old_striplib \ +striplib; do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[\\\\\\\`\\"\\\$]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +# Double-quote double-evaled strings. +for var in reload_cmds \ +old_postinstall_cmds \ +old_postuninstall_cmds \ +old_archive_cmds \ +extract_expsyms_cmds \ +old_archive_from_new_cmds \ +old_archive_from_expsyms_cmds \ +archive_cmds \ +archive_expsym_cmds \ +module_cmds \ +module_expsym_cmds \ +export_symbols_cmds \ +prelink_cmds \ +postinstall_cmds \ +postuninstall_cmds \ +finish_cmds \ +sys_lib_search_path_spec \ +sys_lib_dlsearch_path_spec; do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[\\\\\\\`\\"\\\$]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +ac_aux_dir='$ac_aux_dir' +xsi_shell='$xsi_shell' +lt_shell_append='$lt_shell_append' + +# See if we are running on zsh, and set the options which allow our +# commands through without removal of \ escapes INIT. +if test -n "\${ZSH_VERSION+set}" ; then + setopt NO_GLOB_SUBST +fi + + + PACKAGE='$PACKAGE' + VERSION='$VERSION' + TIMESTAMP='$TIMESTAMP' + RM='$RM' + ofile='$ofile' + + + + +GCC="$GCC" +CC="$CC" +acx_cv_header_stdint="$acx_cv_header_stdint" +acx_cv_type_int8_t="$acx_cv_type_int8_t" +acx_cv_type_int16_t="$acx_cv_type_int16_t" +acx_cv_type_int32_t="$acx_cv_type_int32_t" +acx_cv_type_int64_t="$acx_cv_type_int64_t" +acx_cv_type_intptr_t="$acx_cv_type_intptr_t" +ac_cv_type_uintmax_t="$ac_cv_type_uintmax_t" +ac_cv_type_uintptr_t="$ac_cv_type_uintptr_t" +ac_cv_type_uint64_t="$ac_cv_type_uint64_t" +ac_cv_type_u_int64_t="$ac_cv_type_u_int64_t" +ac_cv_type_u_int32_t="$ac_cv_type_u_int32_t" +ac_cv_type_int_least32_t="$ac_cv_type_int_least32_t" +ac_cv_type_int_fast32_t="$ac_cv_type_int_fast32_t" +ac_cv_sizeof_void_p="$ac_cv_sizeof_void_p" + + +# Variables needed in config.status (file generation) which aren't already +# passed by autoconf. +SUBDIRS="$SUBDIRS" + + +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 + +# Handling of arguments. +for ac_config_target in $ac_config_targets +do + case $ac_config_target in + "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;; + "default-1") CONFIG_COMMANDS="$CONFIG_COMMANDS default-1" ;; + "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;; + "gstdint.h") CONFIG_COMMANDS="$CONFIG_COMMANDS gstdint.h" ;; + "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;; + "backtrace-supported.h") CONFIG_FILES="$CONFIG_FILES backtrace-supported.h" ;; + "install-debuginfo-for-buildid.sh") CONFIG_FILES="$CONFIG_FILES install-debuginfo-for-buildid.sh" ;; + "default") CONFIG_COMMANDS="$CONFIG_COMMANDS default" ;; + + *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;; + esac +done + + +# If the user did not use the arguments to specify the items to instantiate, +# then the envvar interface is used. Set only those that are not. +# We use the long form for the default assignment because of an extremely +# bizarre bug on SunOS 4.1.3. +if $ac_need_defaults; then + test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files + test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers + test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands +fi + +# Have a temporary directory for convenience. Make it in the build tree +# simply because there is no reason against having it here, and in addition, +# creating and moving files from /tmp can sometimes cause problems. +# Hook for its removal unless debugging. +# Note that there is a small window in which the directory will not be cleaned: +# after its creation but before its name has been assigned to `$tmp'. +$debug || +{ + tmp= ac_tmp= + trap 'exit_status=$? + : "${ac_tmp:=$tmp}" + { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status +' 0 + trap 'as_fn_exit 1' 1 2 13 15 +} +# Create a (secure) tmp directory for tmp files. + +{ + tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` && + test -d "$tmp" +} || +{ + tmp=./conf$$-$RANDOM + (umask 077 && mkdir "$tmp") +} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5 +ac_tmp=$tmp + +# Set up the scripts for CONFIG_FILES section. +# No need to generate them if there are no CONFIG_FILES. +# This happens for instance with `./config.status config.h'. +if test -n "$CONFIG_FILES"; then + + +ac_cr=`echo X | tr X '\015'` +# On cygwin, bash can eat \r inside `` if the user requested igncr. +# But we know of no other shell where ac_cr would be empty at this +# point, so we can use a bashism as a fallback. +if test "x$ac_cr" = x; then + eval ac_cr=\$\'\\r\' +fi +ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null` +if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then + ac_cs_awk_cr='\\r' +else + ac_cs_awk_cr=$ac_cr +fi + +echo 'BEGIN {' >"$ac_tmp/subs1.awk" && +_ACEOF + + +{ + echo "cat >conf$$subs.awk <<_ACEOF" && + echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' && + echo "_ACEOF" +} >conf$$subs.sh || + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 +ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'` +ac_delim='%!_!# ' +for ac_last_try in false false false false false :; do + . ./conf$$subs.sh || + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 + + ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X` + if test $ac_delim_n = $ac_delim_num; then + break + elif $ac_last_try; then + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 + else + ac_delim="$ac_delim!$ac_delim _$ac_delim!! " + fi +done +rm -f conf$$subs.sh + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK && +_ACEOF +sed -n ' +h +s/^/S["/; s/!.*/"]=/ +p +g +s/^[^!]*!// +:repl +t repl +s/'"$ac_delim"'$// +t delim +:nl +h +s/\(.\{148\}\)..*/\1/ +t more1 +s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/ +p +n +b repl +:more1 +s/["\\]/\\&/g; s/^/"/; s/$/"\\/ +p +g +s/.\{148\}// +t nl +:delim +h +s/\(.\{148\}\)..*/\1/ +t more2 +s/["\\]/\\&/g; s/^/"/; s/$/"/ +p +b +:more2 +s/["\\]/\\&/g; s/^/"/; s/$/"\\/ +p +g +s/.\{148\}// +t delim +' <conf$$subs.awk | sed ' +/^[^""]/{ + N + s/\n// +} +' >>$CONFIG_STATUS || ac_write_fail=1 +rm -f conf$$subs.awk +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +_ACAWK +cat >>"\$ac_tmp/subs1.awk" <<_ACAWK && + for (key in S) S_is_set[key] = 1 + FS = "" + +} +{ + line = $ 0 + nfields = split(line, field, "@") + substed = 0 + len = length(field[1]) + for (i = 2; i < nfields; i++) { + key = field[i] + keylen = length(key) + if (S_is_set[key]) { + value = S[key] + line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3) + len += length(value) + length(field[++i]) + substed = 1 + } else + len += 1 + keylen + } + + print line +} + +_ACAWK +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then + sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g" +else + cat +fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \ + || as_fn_error $? "could not setup config files machinery" "$LINENO" 5 +_ACEOF + +# VPATH may cause trouble with some makes, so we remove sole $(srcdir), +# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and +# trailing colons and then remove the whole line if VPATH becomes empty +# (actually we leave an empty line to preserve line numbers). +if test "x$srcdir" = x.; then + ac_vpsub='/^[ ]*VPATH[ ]*=[ ]*/{ +h +s/// +s/^/:/ +s/[ ]*$/:/ +s/:\$(srcdir):/:/g +s/:\${srcdir}:/:/g +s/:@srcdir@:/:/g +s/^:*// +s/:*$// +x +s/\(=[ ]*\).*/\1/ +G +s/\n// +s/^[^=]*=[ ]*$// +}' +fi + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +fi # test -n "$CONFIG_FILES" + +# Set up the scripts for CONFIG_HEADERS section. +# No need to generate them if there are no CONFIG_HEADERS. +# This happens for instance with `./config.status Makefile'. +if test -n "$CONFIG_HEADERS"; then +cat >"$ac_tmp/defines.awk" <<\_ACAWK || +BEGIN { +_ACEOF + +# Transform confdefs.h into an awk script `defines.awk', embedded as +# here-document in config.status, that substitutes the proper values into +# config.h.in to produce config.h. + +# Create a delimiter string that does not exist in confdefs.h, to ease +# handling of long lines. +ac_delim='%!_!# ' +for ac_last_try in false false :; do + ac_tt=`sed -n "/$ac_delim/p" confdefs.h` + if test -z "$ac_tt"; then + break + elif $ac_last_try; then + as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5 + else + ac_delim="$ac_delim!$ac_delim _$ac_delim!! " + fi +done + +# For the awk script, D is an array of macro values keyed by name, +# likewise P contains macro parameters if any. Preserve backslash +# newline sequences. + +ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]* +sed -n ' +s/.\{148\}/&'"$ac_delim"'/g +t rset +:rset +s/^[ ]*#[ ]*define[ ][ ]*/ / +t def +d +:def +s/\\$// +t bsnl +s/["\\]/\\&/g +s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\ +D["\1"]=" \3"/p +s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2"/p +d +:bsnl +s/["\\]/\\&/g +s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\ +D["\1"]=" \3\\\\\\n"\\/p +t cont +s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p +t cont +d +:cont +n +s/.\{148\}/&'"$ac_delim"'/g +t clear +:clear +s/\\$// +t bsnlc +s/["\\]/\\&/g; s/^/"/; s/$/"/p +d +:bsnlc +s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p +b cont +' <confdefs.h | sed ' +s/'"$ac_delim"'/"\\\ +"/g' >>$CONFIG_STATUS || ac_write_fail=1 + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 + for (key in D) D_is_set[key] = 1 + FS = "" +} +/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ { + line = \$ 0 + split(line, arg, " ") + if (arg[1] == "#") { + defundef = arg[2] + mac1 = arg[3] + } else { + defundef = substr(arg[1], 2) + mac1 = arg[2] + } + split(mac1, mac2, "(") #) + macro = mac2[1] + prefix = substr(line, 1, index(line, defundef) - 1) + if (D_is_set[macro]) { + # Preserve the white space surrounding the "#". + print prefix "define", macro P[macro] D[macro] + next + } else { + # Replace #undef with comments. This is necessary, for example, + # in the case of _POSIX_SOURCE, which is predefined and required + # on some systems where configure will not decide to define it. + if (defundef == "undef") { + print "/*", prefix defundef, macro, "*/" + next + } + } +} +{ print } +_ACAWK +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 + as_fn_error $? "could not setup config headers machinery" "$LINENO" 5 +fi # test -n "$CONFIG_HEADERS" + + +eval set X " :F $CONFIG_FILES :H $CONFIG_HEADERS :C $CONFIG_COMMANDS" +shift +for ac_tag +do + case $ac_tag in + :[FHLC]) ac_mode=$ac_tag; continue;; + esac + case $ac_mode$ac_tag in + :[FHL]*:*);; + :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;; + :[FH]-) ac_tag=-:-;; + :[FH]*) ac_tag=$ac_tag:$ac_tag.in;; + esac + ac_save_IFS=$IFS + IFS=: + set x $ac_tag + IFS=$ac_save_IFS + shift + ac_file=$1 + shift + + case $ac_mode in + :L) ac_source=$1;; + :[FH]) + ac_file_inputs= + for ac_f + do + case $ac_f in + -) ac_f="$ac_tmp/stdin";; + *) # Look for the file first in the build tree, then in the source tree + # (if the path is not absolute). The absolute path cannot be DOS-style, + # because $ac_f cannot contain `:'. + test -f "$ac_f" || + case $ac_f in + [\\/$]*) false;; + *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";; + esac || + as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;; + esac + case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac + as_fn_append ac_file_inputs " '$ac_f'" + done + + # Let's still pretend it is `configure' which instantiates (i.e., don't + # use $as_me), people would be surprised to read: + # /* config.h. Generated by config.status. */ + configure_input='Generated from '` + $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g' + `' by configure.' + if test x"$ac_file" != x-; then + configure_input="$ac_file. $configure_input" + { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5 +$as_echo "$as_me: creating $ac_file" >&6;} + fi + # Neutralize special characters interpreted by sed in replacement strings. + case $configure_input in #( + *\&* | *\|* | *\\* ) + ac_sed_conf_input=`$as_echo "$configure_input" | + sed 's/[\\\\&|]/\\\\&/g'`;; #( + *) ac_sed_conf_input=$configure_input;; + esac + + case $ac_tag in + *:-:* | *:-) cat >"$ac_tmp/stdin" \ + || as_fn_error $? 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See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Libtool; see the file COPYING. If not, a copy +# can be downloaded from http://www.gnu.org/licenses/gpl.html, or +# obtained by writing to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + + +# The names of the tagged configurations supported by this script. +available_tags="" + +# ### BEGIN LIBTOOL CONFIG + +# Which release of libtool.m4 was used? +macro_version=$macro_version +macro_revision=$macro_revision + +# Whether or not to build shared libraries. +build_libtool_libs=$enable_shared + +# Whether or not to build static libraries. +build_old_libs=$enable_static + +# What type of objects to build. +pic_mode=$pic_mode + +# Whether or not to optimize for fast installation. +fast_install=$enable_fast_install + +# Shell to use when invoking shell scripts. +SHELL=$lt_SHELL + +# An echo program that protects backslashes. +ECHO=$lt_ECHO + +# The host system. +host_alias=$host_alias +host=$host +host_os=$host_os + +# The build system. +build_alias=$build_alias +build=$build +build_os=$build_os + +# A sed program that does not truncate output. +SED=$lt_SED + +# Sed that helps us avoid accidentally triggering echo(1) options like -n. +Xsed="\$SED -e 1s/^X//" + +# A grep program that handles long lines. +GREP=$lt_GREP + +# An ERE matcher. +EGREP=$lt_EGREP + +# A literal string matcher. +FGREP=$lt_FGREP + +# A BSD- or MS-compatible name lister. +NM=$lt_NM + +# Whether we need soft or hard links. +LN_S=$lt_LN_S + +# What is the maximum length of a command? +max_cmd_len=$max_cmd_len + +# Object file suffix (normally "o"). +objext=$ac_objext + +# Executable file suffix (normally ""). +exeext=$exeext + +# whether the shell understands "unset". +lt_unset=$lt_unset + +# turn spaces into newlines. +SP2NL=$lt_lt_SP2NL + +# turn newlines into spaces. +NL2SP=$lt_lt_NL2SP + +# An object symbol dumper. +OBJDUMP=$lt_OBJDUMP + +# Method to check whether dependent libraries are shared objects. +deplibs_check_method=$lt_deplibs_check_method + +# Command to use when deplibs_check_method == "file_magic". +file_magic_cmd=$lt_file_magic_cmd + +# The archiver. +AR=$lt_AR +AR_FLAGS=$lt_AR_FLAGS + +# A symbol stripping program. +STRIP=$lt_STRIP + +# Commands used to install an old-style archive. +RANLIB=$lt_RANLIB +old_postinstall_cmds=$lt_old_postinstall_cmds +old_postuninstall_cmds=$lt_old_postuninstall_cmds + +# Whether to use a lock for old archive extraction. +lock_old_archive_extraction=$lock_old_archive_extraction + +# A C compiler. +LTCC=$lt_CC + +# LTCC compiler flags. +LTCFLAGS=$lt_CFLAGS + +# Take the output of nm and produce a listing of raw symbols and C names. +global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe + +# Transform the output of nm in a proper C declaration. +global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl + +# Transform the output of nm in a C name address pair. +global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address + +# Transform the output of nm in a C name address pair when lib prefix is needed. +global_symbol_to_c_name_address_lib_prefix=$lt_lt_cv_sys_global_symbol_to_c_name_address_lib_prefix + +# The name of the directory that contains temporary libtool files. +objdir=$objdir + +# Used to examine libraries when file_magic_cmd begins with "file". +MAGIC_CMD=$MAGIC_CMD + +# Must we lock files when doing compilation? +need_locks=$lt_need_locks + +# Tool to manipulate archived DWARF debug symbol files on Mac OS X. +DSYMUTIL=$lt_DSYMUTIL + +# Tool to change global to local symbols on Mac OS X. +NMEDIT=$lt_NMEDIT + +# Tool to manipulate fat objects and archives on Mac OS X. +LIPO=$lt_LIPO + +# ldd/readelf like tool for Mach-O binaries on Mac OS X. +OTOOL=$lt_OTOOL + +# ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4. +OTOOL64=$lt_OTOOL64 + +# Old archive suffix (normally "a"). +libext=$libext + +# Shared library suffix (normally ".so"). +shrext_cmds=$lt_shrext_cmds + +# The commands to extract the exported symbol list from a shared archive. +extract_expsyms_cmds=$lt_extract_expsyms_cmds + +# Variables whose values should be saved in libtool wrapper scripts and +# restored at link time. +variables_saved_for_relink=$lt_variables_saved_for_relink + +# Do we need the "lib" prefix for modules? +need_lib_prefix=$need_lib_prefix + +# Do we need a version for libraries? +need_version=$need_version + +# Library versioning type. +version_type=$version_type + +# Shared library runtime path variable. +runpath_var=$runpath_var + +# Shared library path variable. +shlibpath_var=$shlibpath_var + +# Is shlibpath searched before the hard-coded library search path? +shlibpath_overrides_runpath=$shlibpath_overrides_runpath + +# Format of library name prefix. +libname_spec=$lt_libname_spec + +# List of archive names. 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This must work even if \$libdir does not exist. +hardcode_libdir_flag_spec_ld=$lt_hardcode_libdir_flag_spec_ld + +# Whether we need a single "-rpath" flag with a separated argument. +hardcode_libdir_separator=$lt_hardcode_libdir_separator + +# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes +# DIR into the resulting binary. +hardcode_direct=$hardcode_direct + +# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes +# DIR into the resulting binary and the resulting library dependency is +# "absolute",i.e impossible to change by setting \${shlibpath_var} if the +# library is relocated. +hardcode_direct_absolute=$hardcode_direct_absolute + +# Set to "yes" if using the -LDIR flag during linking hardcodes DIR +# into the resulting binary. +hardcode_minus_L=$hardcode_minus_L + +# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR +# into the resulting binary. +hardcode_shlibpath_var=$hardcode_shlibpath_var + +# Set to "yes" if building a shared library automatically hardcodes DIR +# into the library and all subsequent libraries and executables linked +# against it. +hardcode_automatic=$hardcode_automatic + +# Set to yes if linker adds runtime paths of dependent libraries +# to runtime path list. +inherit_rpath=$inherit_rpath + +# Whether libtool must link a program against all its dependency libraries. +link_all_deplibs=$link_all_deplibs + +# Fix the shell variable \$srcfile for the compiler. +fix_srcfile_path=$lt_fix_srcfile_path + +# Set to "yes" if exported symbols are required. +always_export_symbols=$always_export_symbols + +# The commands to list exported symbols. +export_symbols_cmds=$lt_export_symbols_cmds + +# Symbols that should not be listed in the preloaded symbols. +exclude_expsyms=$lt_exclude_expsyms + +# Symbols that must always be exported. +include_expsyms=$lt_include_expsyms + +# Commands necessary for linking programs (against libraries) with templates. +prelink_cmds=$lt_prelink_cmds + +# Specify filename containing input files. +file_list_spec=$lt_file_list_spec + +# How to hardcode a shared library path into an executable. +hardcode_action=$hardcode_action + +# ### END LIBTOOL CONFIG + +_LT_EOF + + case $host_os in + aix3*) + cat <<\_LT_EOF >> "$cfgfile" +# AIX sometimes has problems with the GCC collect2 program. For some +# reason, if we set the COLLECT_NAMES environment variable, the problems +# vanish in a puff of smoke. +if test "X${COLLECT_NAMES+set}" != Xset; then + COLLECT_NAMES= + export COLLECT_NAMES +fi +_LT_EOF + ;; + esac + + +ltmain="$ac_aux_dir/ltmain.sh" + + + # We use sed instead of cat because bash on DJGPP gets confused if + # if finds mixed CR/LF and LF-only lines. Since sed operates in + # text mode, it properly converts lines to CR/LF. This bash problem + # is reportedly fixed, but why not run on old versions too? + sed '/^# Generated shell functions inserted here/q' "$ltmain" >> "$cfgfile" \ + || (rm -f "$cfgfile"; exit 1) + + case $xsi_shell in + yes) + cat << \_LT_EOF >> "$cfgfile" + +# func_dirname file append nondir_replacement +# Compute the dirname of FILE. If nonempty, add APPEND to the result, +# otherwise set result to NONDIR_REPLACEMENT. +func_dirname () +{ + case ${1} in + */*) func_dirname_result="${1%/*}${2}" ;; + * ) func_dirname_result="${3}" ;; + esac +} + +# func_basename file +func_basename () +{ + func_basename_result="${1##*/}" +} + +# func_dirname_and_basename file append nondir_replacement +# perform func_basename and func_dirname in a single function +# call: +# dirname: Compute the dirname of FILE. If nonempty, +# add APPEND to the result, otherwise set result +# to NONDIR_REPLACEMENT. +# value returned in "$func_dirname_result" +# basename: Compute filename of FILE. +# value retuned in "$func_basename_result" +# Implementation must be kept synchronized with func_dirname +# and func_basename. For efficiency, we do not delegate to +# those functions but instead duplicate the functionality here. +func_dirname_and_basename () +{ + case ${1} in + */*) func_dirname_result="${1%/*}${2}" ;; + * ) func_dirname_result="${3}" ;; + esac + func_basename_result="${1##*/}" +} + +# func_stripname prefix suffix name +# strip PREFIX and SUFFIX off of NAME. +# PREFIX and SUFFIX must not contain globbing or regex special +# characters, hashes, percent signs, but SUFFIX may contain a leading +# dot (in which case that matches only a dot). +func_stripname () +{ + # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are + # positional parameters, so assign one to ordinary parameter first. + func_stripname_result=${3} + func_stripname_result=${func_stripname_result#"${1}"} + func_stripname_result=${func_stripname_result%"${2}"} +} + +# func_opt_split +func_opt_split () +{ + func_opt_split_opt=${1%%=*} + func_opt_split_arg=${1#*=} +} + +# func_lo2o object +func_lo2o () +{ + case ${1} in + *.lo) func_lo2o_result=${1%.lo}.${objext} ;; + *) func_lo2o_result=${1} ;; + esac +} + +# func_xform libobj-or-source +func_xform () +{ + func_xform_result=${1%.*}.lo +} + +# func_arith arithmetic-term... +func_arith () +{ + func_arith_result=$(( $* )) +} + +# func_len string +# STRING may not start with a hyphen. +func_len () +{ + func_len_result=${#1} +} + +_LT_EOF + ;; + *) # Bourne compatible functions. + cat << \_LT_EOF >> "$cfgfile" + +# func_dirname file append nondir_replacement +# Compute the dirname of FILE. If nonempty, add APPEND to the result, +# otherwise set result to NONDIR_REPLACEMENT. +func_dirname () +{ + # Extract subdirectory from the argument. + func_dirname_result=`$ECHO "${1}" | $SED "$dirname"` + if test "X$func_dirname_result" = "X${1}"; then + func_dirname_result="${3}" + else + func_dirname_result="$func_dirname_result${2}" + fi +} + +# func_basename file +func_basename () +{ + func_basename_result=`$ECHO "${1}" | $SED "$basename"` +} + + +# func_stripname prefix suffix name +# strip PREFIX and SUFFIX off of NAME. +# PREFIX and SUFFIX must not contain globbing or regex special +# characters, hashes, percent signs, but SUFFIX may contain a leading +# dot (in which case that matches only a dot). +# func_strip_suffix prefix name +func_stripname () +{ + case ${2} in + .*) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%\\\\${2}\$%%"`;; + *) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%${2}\$%%"`;; + esac +} + +# sed scripts: +my_sed_long_opt='1s/^\(-[^=]*\)=.*/\1/;q' +my_sed_long_arg='1s/^-[^=]*=//' + +# func_opt_split +func_opt_split () +{ + func_opt_split_opt=`$ECHO "${1}" | $SED "$my_sed_long_opt"` + func_opt_split_arg=`$ECHO "${1}" | $SED "$my_sed_long_arg"` +} + +# func_lo2o object +func_lo2o () +{ + func_lo2o_result=`$ECHO "${1}" | $SED "$lo2o"` +} + +# func_xform libobj-or-source +func_xform () +{ + func_xform_result=`$ECHO "${1}" | $SED 's/\.[^.]*$/.lo/'` +} + +# func_arith arithmetic-term... +func_arith () +{ + func_arith_result=`expr "$@"` +} + +# func_len string +# STRING may not start with a hyphen. +func_len () +{ + func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len` +} + +_LT_EOF +esac + +case $lt_shell_append in + yes) + cat << \_LT_EOF >> "$cfgfile" + +# func_append var value +# Append VALUE to the end of shell variable VAR. +func_append () +{ + eval "$1+=\$2" +} +_LT_EOF + ;; + *) + cat << \_LT_EOF >> "$cfgfile" + +# func_append var value +# Append VALUE to the end of shell variable VAR. +func_append () +{ + eval "$1=\$$1\$2" +} + +_LT_EOF + ;; + esac + + + sed -n '/^# Generated shell functions inserted here/,$p' "$ltmain" >> "$cfgfile" \ + || (rm -f "$cfgfile"; exit 1) + + mv -f "$cfgfile" "$ofile" || + (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile") + chmod +x "$ofile" + + ;; + "gstdint.h":C) +if test "$GCC" = yes; then + echo "/* generated for " `$CC --version | sed 1q` "*/" > tmp-stdint.h +else + echo "/* generated for $CC */" > tmp-stdint.h +fi + +sed 's/^ *//' >> tmp-stdint.h <<EOF + + #ifndef GCC_GENERATED_STDINT_H + #define GCC_GENERATED_STDINT_H 1 + + #include <sys/types.h> +EOF + +if test "$acx_cv_header_stdint" != stdint.h; then + echo "#include <stddef.h>" >> tmp-stdint.h +fi +if test "$acx_cv_header_stdint" != stddef.h; then + echo "#include <$acx_cv_header_stdint>" >> tmp-stdint.h +fi + +sed 's/^ *//' >> tmp-stdint.h <<EOF + /* glibc uses these symbols as guards to prevent redefinitions. */ + #ifdef __int8_t_defined + #define _INT8_T + #define _INT16_T + #define _INT32_T + #endif + #ifdef __uint32_t_defined + #define _UINT32_T + #endif + +EOF + +# ----------------- done header, emit basic int types ------------- +if test "$acx_cv_header_stdint" = stddef.h; then + sed 's/^ *//' >> tmp-stdint.h <<EOF + + #ifndef _UINT8_T + #define _UINT8_T + #ifndef __uint8_t_defined + #define __uint8_t_defined + #ifndef uint8_t + typedef unsigned $acx_cv_type_int8_t uint8_t; + #endif + #endif + #endif + + #ifndef _UINT16_T + #define _UINT16_T + #ifndef __uint16_t_defined + #define __uint16_t_defined + #ifndef uint16_t + typedef unsigned $acx_cv_type_int16_t uint16_t; + #endif + #endif + #endif + + #ifndef _UINT32_T + #define _UINT32_T + #ifndef __uint32_t_defined + #define __uint32_t_defined + #ifndef uint32_t + typedef unsigned $acx_cv_type_int32_t uint32_t; + #endif + #endif + #endif + + #ifndef _INT8_T + #define _INT8_T + #ifndef __int8_t_defined + #define __int8_t_defined + #ifndef int8_t + typedef $acx_cv_type_int8_t int8_t; + #endif + #endif + #endif + + #ifndef _INT16_T + #define _INT16_T + #ifndef __int16_t_defined + #define __int16_t_defined + #ifndef int16_t + typedef $acx_cv_type_int16_t int16_t; + #endif + #endif + #endif + + #ifndef _INT32_T + #define _INT32_T + #ifndef __int32_t_defined + #define __int32_t_defined + #ifndef int32_t + typedef $acx_cv_type_int32_t int32_t; + #endif + #endif + #endif +EOF +elif test "$ac_cv_type_u_int32_t" = yes; then + sed 's/^ *//' >> tmp-stdint.h <<EOF + + /* int8_t int16_t int32_t defined by inet code, we do the u_intXX types */ + #ifndef _INT8_T + #define _INT8_T + #endif + #ifndef _INT16_T + #define _INT16_T + #endif + #ifndef _INT32_T + #define _INT32_T + #endif + + #ifndef _UINT8_T + #define _UINT8_T + #ifndef __uint8_t_defined + #define __uint8_t_defined + #ifndef uint8_t + typedef u_int8_t uint8_t; + #endif + #endif + #endif + + #ifndef _UINT16_T + #define _UINT16_T + #ifndef __uint16_t_defined + #define __uint16_t_defined + #ifndef uint16_t + typedef u_int16_t uint16_t; + #endif + #endif + #endif + + #ifndef _UINT32_T + #define _UINT32_T + #ifndef __uint32_t_defined + #define __uint32_t_defined + #ifndef uint32_t + typedef u_int32_t uint32_t; + #endif + #endif + #endif +EOF +else + sed 's/^ *//' >> tmp-stdint.h <<EOF + + /* Some systems have guard macros to prevent redefinitions, define them. */ + #ifndef _INT8_T + #define _INT8_T + #endif + #ifndef _INT16_T + #define _INT16_T + #endif + #ifndef _INT32_T + #define _INT32_T + #endif + #ifndef _UINT8_T + #define _UINT8_T + #endif + #ifndef _UINT16_T + #define _UINT16_T + #endif + #ifndef _UINT32_T + #define _UINT32_T + #endif +EOF +fi + +# ------------- done basic int types, emit int64_t types ------------ +if test "$ac_cv_type_uint64_t" = yes; then + sed 's/^ *//' >> tmp-stdint.h <<EOF + + /* system headers have good uint64_t and int64_t */ + #ifndef _INT64_T + #define _INT64_T + #endif + #ifndef _UINT64_T + #define _UINT64_T + #endif +EOF +elif test "$ac_cv_type_u_int64_t" = yes; then + sed 's/^ *//' >> tmp-stdint.h <<EOF + + /* system headers have an u_int64_t (and int64_t) */ + #ifndef _INT64_T + #define _INT64_T + #endif + #ifndef _UINT64_T + #define _UINT64_T + #ifndef __uint64_t_defined + #define __uint64_t_defined + #ifndef uint64_t + typedef u_int64_t uint64_t; + #endif + #endif + #endif +EOF +elif test -n "$acx_cv_type_int64_t"; then + sed 's/^ *//' >> tmp-stdint.h <<EOF + + /* architecture has a 64-bit type, $acx_cv_type_int64_t */ + #ifndef _INT64_T + #define _INT64_T + #ifndef int64_t + typedef $acx_cv_type_int64_t int64_t; + #endif + #endif + #ifndef _UINT64_T + #define _UINT64_T + #ifndef __uint64_t_defined + #define __uint64_t_defined + #ifndef uint64_t + typedef unsigned $acx_cv_type_int64_t uint64_t; + #endif + #endif + #endif +EOF +else + sed 's/^ *//' >> tmp-stdint.h <<EOF + + /* some common heuristics for int64_t, using compiler-specific tests */ + #if defined __STDC_VERSION__ && (__STDC_VERSION__-0) >= 199901L + #ifndef _INT64_T + #define _INT64_T + #ifndef __int64_t_defined + #ifndef int64_t + typedef long long int64_t; + #endif + #endif + #endif + #ifndef _UINT64_T + #define _UINT64_T + #ifndef uint64_t + typedef unsigned long long uint64_t; + #endif + #endif + + #elif defined __GNUC__ && defined (__STDC__) && __STDC__-0 + /* NextStep 2.0 cc is really gcc 1.93 but it defines __GNUC__ = 2 and + does not implement __extension__. But that compiler doesn't define + __GNUC_MINOR__. */ + # if __GNUC__ < 2 || (__NeXT__ && !__GNUC_MINOR__) + # define __extension__ + # endif + + # ifndef _INT64_T + # define _INT64_T + # ifndef int64_t + __extension__ typedef long long int64_t; + # endif + # endif + # ifndef _UINT64_T + # define _UINT64_T + # ifndef uint64_t + __extension__ typedef unsigned long long uint64_t; + # endif + # endif + + #elif !defined __STRICT_ANSI__ + # if defined _MSC_VER || defined __WATCOMC__ || defined __BORLANDC__ + + # ifndef _INT64_T + # define _INT64_T + # ifndef int64_t + typedef __int64 int64_t; + # endif + # endif + # ifndef _UINT64_T + # define _UINT64_T + # ifndef uint64_t + typedef unsigned __int64 uint64_t; + # endif + # endif + # endif /* compiler */ + + #endif /* ANSI version */ +EOF +fi + +# ------------- done int64_t types, emit intptr types ------------ +if test "$ac_cv_type_uintptr_t" != yes; then + sed 's/^ *//' >> tmp-stdint.h <<EOF + + /* Define intptr_t based on sizeof(void*) = $ac_cv_sizeof_void_p */ + #ifndef __uintptr_t_defined + #ifndef uintptr_t + typedef u$acx_cv_type_intptr_t uintptr_t; + #endif + #endif + #ifndef __intptr_t_defined + #ifndef intptr_t + typedef $acx_cv_type_intptr_t intptr_t; + #endif + #endif +EOF +fi + +# ------------- done intptr types, emit int_least types ------------ +if test "$ac_cv_type_int_least32_t" != yes; then + sed 's/^ *//' >> tmp-stdint.h <<EOF + + /* Define int_least types */ + typedef int8_t int_least8_t; + typedef int16_t int_least16_t; + typedef int32_t int_least32_t; + #ifdef _INT64_T + typedef int64_t int_least64_t; + #endif + + typedef uint8_t uint_least8_t; + typedef uint16_t uint_least16_t; + typedef uint32_t uint_least32_t; + #ifdef _UINT64_T + typedef uint64_t uint_least64_t; + #endif +EOF +fi + +# ------------- done intptr types, emit int_fast types ------------ +if test "$ac_cv_type_int_fast32_t" != yes; then + sed 's/^ *//' >> tmp-stdint.h <<EOF + + /* Define int_fast types. short is often slow */ + typedef int8_t int_fast8_t; + typedef int int_fast16_t; + typedef int32_t int_fast32_t; + #ifdef _INT64_T + typedef int64_t int_fast64_t; + #endif + + typedef uint8_t uint_fast8_t; + typedef unsigned int uint_fast16_t; + typedef uint32_t uint_fast32_t; + #ifdef _UINT64_T + typedef uint64_t uint_fast64_t; + #endif +EOF +fi + +if test "$ac_cv_type_uintmax_t" != yes; then + sed 's/^ *//' >> tmp-stdint.h <<EOF + + /* Define intmax based on what we found */ + #ifndef intmax_t + #ifdef _INT64_T + typedef int64_t intmax_t; + #else + typedef long intmax_t; + #endif + #endif + #ifndef uintmax_t + #ifdef _UINT64_T + typedef uint64_t uintmax_t; + #else + typedef unsigned long uintmax_t; + #endif + #endif +EOF +fi + +sed 's/^ *//' >> tmp-stdint.h <<EOF + + #endif /* GCC_GENERATED_STDINT_H */ +EOF + +if test -r gstdint.h && cmp -s tmp-stdint.h gstdint.h; then + rm -f tmp-stdint.h +else + mv -f tmp-stdint.h gstdint.h +fi + + ;; + "install-debuginfo-for-buildid.sh":F) chmod +x install-debuginfo-for-buildid.sh ;; + "default":C) if test -n "$CONFIG_FILES"; then + if test -n "${with_target_subdir}"; then + # Multilibs need MULTISUBDIR defined correctly in certain makefiles so + # that multilib installs will end up installed in the correct place. + # The testsuite needs it for multilib-aware ABI baseline files. + # To work around this not being passed down from config-ml.in -> + # srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually + # append it here. Only modify Makefiles that have just been created. + # + # Also, get rid of this simulated-VPATH thing that automake does. + cat > vpsed << \_EOF + s!`test -f '$<' || echo '$(srcdir)/'`!! +_EOF + for i in $SUBDIRS; do + case $CONFIG_FILES in + *${i}/Makefile*) + #echo "Adding MULTISUBDIR to $i/Makefile" + sed -f vpsed $i/Makefile > tmp + grep '^MULTISUBDIR =' Makefile >> tmp + mv tmp $i/Makefile + ;; + esac + done + rm vpsed + fi + fi + ;; + + esac +done # for ac_tag + + +as_fn_exit 0 +_ACEOF +ac_clean_files=$ac_clean_files_save + +test $ac_write_fail = 0 || + as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5 + + +# configure is writing to config.log, and then calls config.status. +# config.status does its own redirection, appending to config.log. +# Unfortunately, on DOS this fails, as config.log is still kept open +# by configure, so config.status won't be able to write to it; its +# output is simply discarded. So we exec the FD to /dev/null, +# effectively closing config.log, so it can be properly (re)opened and +# appended to by config.status. When coming back to configure, we +# need to make the FD available again. +if test "$no_create" != yes; then + ac_cs_success=: + ac_config_status_args= + test "$silent" = yes && + ac_config_status_args="$ac_config_status_args --quiet" + exec 5>/dev/null + $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false + exec 5>>config.log + # Use ||, not &&, to avoid exiting from the if with $? = 1, which + # would make configure fail if this is the last instruction. + $ac_cs_success || as_fn_exit 1 +fi +if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5 +$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;} +fi + diff --git a/libbacktrace/configure.ac b/libbacktrace/configure.ac new file mode 100644 index 00000000000..43a33a66b82 --- /dev/null +++ b/libbacktrace/configure.ac @@ -0,0 +1,581 @@ +# configure.ac -- Backtrace configure script. +# Copyright (C) 2012-2021 Free Software Foundation, Inc. + +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: + +# (1) Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. + +# (2) Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. + +# (3) The name of the author may not be used to +# endorse or promote products derived from this software without +# specific prior written permission. + +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +# DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +AC_INIT(package-unused, version-unused,, libbacktrace) +AC_CONFIG_SRCDIR(backtrace.h) +AC_CONFIG_HEADER(config.h) + +if test -n "${with_target_subdir}"; then + AM_ENABLE_MULTILIB(, ..) +fi + +AC_CANONICAL_SYSTEM +target_alias=${target_alias-$host_alias} + +AC_USE_SYSTEM_EXTENSIONS + +libtool_VERSION=1:0:0 +AC_SUBST(libtool_VERSION) + +# 1.11.1: Require that version of automake. +# foreign: Don't require README, INSTALL, NEWS, etc. +# no-define: Don't define PACKAGE and VERSION. +# no-dependencies: Don't generate automatic dependencies. +# (because it breaks when using bootstrap-lean, since some of the +# headers are gone at "make install" time). +# -Wall: Issue all automake warnings. +# -Wno-portability: Don't warn about constructs supported by GNU make. +# (because GCC requires GNU make anyhow). +AM_INIT_AUTOMAKE([1.11.1 foreign no-dist no-define no-dependencies -Wall -Wno-portability]) + +AM_MAINTAINER_MODE + +AC_ARG_WITH(target-subdir, +[ --with-target-subdir=SUBDIR Configuring in a subdirectory for target]) + +# We must force CC to /not/ be precious variables; otherwise +# the wrong, non-multilib-adjusted value will be used in multilibs. +# As a side effect, we have to subst CFLAGS ourselves. +m4_rename([_AC_ARG_VAR_PRECIOUS],[backtrace_PRECIOUS]) +m4_define([_AC_ARG_VAR_PRECIOUS],[]) +AC_PROG_CC +m4_rename_force([backtrace_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) + +AC_SUBST(CFLAGS) + +AC_PROG_RANLIB + +AC_PROG_AWK +case "$AWK" in +"") AC_MSG_ERROR([can't build without awk]) ;; +esac + +AC_CHECK_PROG(DWZ, dwz, dwz) +AM_CONDITIONAL(HAVE_DWZ, test "$DWZ" != "") + +LT_INIT +AM_PROG_LIBTOOL + +AC_SYS_LARGEFILE + +backtrace_supported=yes + +if test -n "${with_target_subdir}"; then + # We are compiling a GCC library. We can assume that the unwind + # library exists. + BACKTRACE_FILE="backtrace.lo simple.lo" +else + AC_CHECK_HEADER([unwind.h], + [AC_CHECK_FUNC([_Unwind_Backtrace], + [BACKTRACE_FILE="backtrace.lo simple.lo"], + [BACKTRACE_FILE="nounwind.lo" + backtrace_supported=no])], + [BACKTRACE_FILE="nounwind.lo" + backtrace_supported=no]) +fi +AC_SUBST(BACKTRACE_FILE) + +EXTRA_FLAGS= +if test -n "${with_target_subdir}"; then + EXTRA_FLAGS="-funwind-tables -frandom-seed=\$@" +else + AC_CACHE_CHECK([for -funwind-tables option], + [libbacktrace_cv_c_unwind_tables], + [CFLAGS_hold="$CFLAGS" + CFLAGS="$CFLAGS -funwind-tables" + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([static int f() { return 0; }], [return f();])], + [libbacktrace_cv_c_unwind_tables=yes], + [libbacktrace_cv_c_unwind_tables=no]) + CFLAGS="$CFLAGS_hold"]) + if test "$libbacktrace_cv_c_unwind_tables" = "yes"; then + EXTRA_FLAGS=-funwind-tables + fi + AC_CACHE_CHECK([for -frandom-seed=string option], + [libbacktrace_cv_c_random_seed_string], + [CFLAGS_hold="$CFLAGS" + CFLAGS="$CFLAGS -frandom-seed=conftest.lo" + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([], [return 0;])], + [libbacktrace_cv_c_random_seed_string=yes], + [libbacktrace_cv_c_random_seed_string=no]) + CFLAGS="$CFLAGS_hold"]) + if test "$libbacktrace_cv_c_random_seed_string" = "yes"; then + EXTRA_FLAGS="$EXTRA_FLAGS -frandom-seed=\$@" + fi +fi + +if test -n "${with_target_subdir}"; then + # Add CET specific flags is Intel CET is enabled. + GCC_CET_FLAGS(CET_FLAGS) + EXTRA_FLAGS="$EXTRA_FLAGS $CET_FLAGS" +fi +AC_SUBST(EXTRA_FLAGS) + +ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wstrict-prototypes \ + -Wmissing-prototypes -Wold-style-definition \ + -Wmissing-format-attribute -Wcast-qual], + [WARN_FLAGS]) + +if test -n "${with_target_subdir}"; then + WARN_FLAGS="$WARN_FLAGS -Werror" +fi + +AC_SUBST(WARN_FLAGS) + +if test -n "${with_target_subdir}"; then + GCC_CHECK_UNWIND_GETIPINFO +else + ac_save_CFFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -Werror-implicit-function-declaration" + AC_MSG_CHECKING([for _Unwind_GetIPInfo]) + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [#include "unwind.h" + struct _Unwind_Context *context; + int ip_before_insn = 0;], + [return _Unwind_GetIPInfo (context, &ip_before_insn);])], + [have_unwind_getipinfo=yes], [have_unwind_getipinfo=no]) + CFLAGS="$ac_save_CFLAGS" + AC_MSG_RESULT([$have_unwind_getipinfo]) + if test "$have_unwind_getipinfo" = "yes"; then + AC_DEFINE(HAVE_GETIPINFO, 1, [Define if _Unwind_GetIPInfo is available.]) + fi +fi + +# Enable --enable-host-shared. +AC_ARG_ENABLE(host-shared, +[AS_HELP_STRING([--enable-host-shared], + [build host code as shared libraries])], +[PIC_FLAG=-fPIC], [PIC_FLAG=]) +AC_SUBST(PIC_FLAG) + +# Enable Intel CET on Intel CET enabled host if jit is enabled. +GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) +case x$enable_languages in +*jit*) + ;; +*) + CET_HOST_FLAGS= + ;; +esac +AC_SUBST(CET_HOST_FLAGS) + +# Test for __sync support. +AC_CACHE_CHECK([__sync extensions], +[libbacktrace_cv_sys_sync], +[if test -n "${with_target_subdir}"; then + case "${host}" in + hppa*-*-hpux*) libbacktrace_cv_sys_sync=no ;; + *) libbacktrace_cv_sys_sync=yes ;; + esac + else + AC_LINK_IFELSE( + [AC_LANG_PROGRAM([int i;], + [__sync_bool_compare_and_swap (&i, i, i); + __sync_lock_test_and_set (&i, 1); + __sync_lock_release (&i);])], + [libbacktrace_cv_sys_sync=yes], + [libbacktrace_cv_sys_sync=no]) + fi]) +BACKTRACE_SUPPORTS_THREADS=0 +if test "$libbacktrace_cv_sys_sync" = "yes"; then + BACKTRACE_SUPPORTS_THREADS=1 + AC_DEFINE([HAVE_SYNC_FUNCTIONS], 1, + [Define to 1 if you have the __sync functions]) +fi +AC_SUBST(BACKTRACE_SUPPORTS_THREADS) + +# Test for __atomic support. +AC_CACHE_CHECK([__atomic extensions], +[libbacktrace_cv_sys_atomic], +[if test -n "${with_target_subdir}"; then + libbacktrace_cv_sys_atomic=yes + else + AC_LINK_IFELSE( + [AC_LANG_PROGRAM([int i;], + [__atomic_load_n (&i, __ATOMIC_ACQUIRE); + __atomic_store_n (&i, 1, __ATOMIC_RELEASE);])], + [libbacktrace_cv_sys_atomic=yes], + [libbacktrace_cv_sys_atomic=no]) + fi]) +if test "$libbacktrace_cv_sys_atomic" = "yes"; then + AC_DEFINE([HAVE_ATOMIC_FUNCTIONS], 1, + [Define to 1 if you have the __atomic functions]) +fi + +# The library needs to be able to read the executable itself. Compile +# a file to determine the executable format. The awk script +# filetype.awk prints out the file type. +AC_CACHE_CHECK([output filetype], +[libbacktrace_cv_sys_filetype], +[filetype= +AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([int i;], [int j;])], + [filetype=`${AWK} -f $srcdir/filetype.awk conftest.$ac_objext`], + [AC_MSG_FAILURE([compiler failed])]) +libbacktrace_cv_sys_filetype=$filetype]) + +# Match the file type to decide what files to compile. +FORMAT_FILE= +backtrace_supports_data=yes +case "$libbacktrace_cv_sys_filetype" in +elf*) FORMAT_FILE="elf.lo" ;; +macho) FORMAT_FILE="macho.lo" ;; +pecoff) FORMAT_FILE="pecoff.lo" + backtrace_supports_data=no + ;; +xcoff*) FORMAT_FILE="xcoff.lo" + backtrace_supports_data=no + ;; +*) AC_MSG_WARN([could not determine output file type]) + FORMAT_FILE="unknown.lo" + backtrace_supported=no + ;; +esac +AC_SUBST(FORMAT_FILE) + +# ELF defines. +elfsize= +case "$libbacktrace_cv_sys_filetype" in +elf32) elfsize=32 ;; +elf64) elfsize=64 ;; +*) elfsize=unused +esac +AC_DEFINE_UNQUOTED([BACKTRACE_ELF_SIZE], [$elfsize], [ELF size: 32 or 64]) +AM_CONDITIONAL(HAVE_ELF, test "$FORMAT_FILE" = "elf.lo") + +# XCOFF defines. +xcoffsize= +case "$libbacktrace_cv_sys_filetype" in +xcoff32) xcoffsize=32 ;; +xcoff64) xcoffsize=64 ;; +*) xcoffsize=unused +esac +AC_DEFINE_UNQUOTED([BACKTRACE_XCOFF_SIZE], [$xcoffsize], [XCOFF size: 32 or 64]) + +BACKTRACE_SUPPORTED=0 +if test "$backtrace_supported" = "yes"; then + BACKTRACE_SUPPORTED=1 +fi +AC_SUBST(BACKTRACE_SUPPORTED) + +BACKTRACE_SUPPORTS_DATA=0 +if test "$backtrace_supports_data" = "yes"; then + BACKTRACE_SUPPORTS_DATA=1 +fi +AC_SUBST(BACKTRACE_SUPPORTS_DATA) + +GCC_HEADER_STDINT(gstdint.h) + +AC_CHECK_HEADERS(sys/mman.h) +if test "$ac_cv_header_sys_mman_h" = "no"; then + have_mmap=no +else + if test -n "${with_target_subdir}"; then + # When built as a GCC target library, we can't do a link test. We + # simply assume that if we have mman.h, we have mmap. + have_mmap=yes + case "${host}" in + *-*-msdosdjgpp) + # DJGPP has sys/man.h, but no mmap + have_mmap=no ;; + esac + else + AC_CHECK_FUNC(mmap, [have_mmap=yes], [have_mmap=no]) + fi +fi +if test "$have_mmap" = "no"; then + VIEW_FILE=read.lo + ALLOC_FILE=alloc.lo +else + VIEW_FILE=mmapio.lo + AC_PREPROC_IFELSE([AC_LANG_SOURCE([ +#include <sys/mman.h> +#if !defined(MAP_ANONYMOUS) && !defined(MAP_ANON) + #error no MAP_ANONYMOUS +#endif +])], [ALLOC_FILE=mmap.lo], [ALLOC_FILE=alloc.lo]) +fi +AC_SUBST(VIEW_FILE) +AC_SUBST(ALLOC_FILE) + +BACKTRACE_USES_MALLOC=0 +if test "$ALLOC_FILE" = "alloc.lo"; then + BACKTRACE_USES_MALLOC=1 +fi +AC_SUBST(BACKTRACE_USES_MALLOC) + +# Check for dl_iterate_phdr. +AC_CHECK_HEADERS(link.h) +if test "$ac_cv_header_link_h" = "no"; then + have_dl_iterate_phdr=no +else + if test -n "${with_target_subdir}"; then + # When built as a GCC target library, we can't do a link test. + AC_EGREP_HEADER([dl_iterate_phdr], [link.h], [have_dl_iterate_phdr=yes], + [have_dl_iterate_phdr=no]) + else + AC_CHECK_FUNC([dl_iterate_phdr], [have_dl_iterate_phdr=yes], + [have_dl_iterate_phdr=no]) + fi +fi +if test "$have_dl_iterate_phdr" = "yes"; then + AC_DEFINE(HAVE_DL_ITERATE_PHDR, 1, [Define if dl_iterate_phdr is available.]) +fi + +# Check for header file for Mach-O image functions. +AC_CHECK_HEADERS(mach-o/dyld.h) + +# Check for loadquery. +AC_CHECK_HEADERS(sys/ldr.h) +if test "$ac_cv_header_sys_ldr_h" = "no"; then + have_loadquery=no +else + if test -n "${with_target_subdir}"; then + # When built as a GCC target library, we can't do a link test. + AC_EGREP_HEADER([loadquery], [sys/ldr.h], [have_loadquery=yes], + [have_loadquery=no]) + else + AC_CHECK_FUNC([loadquery], [have_loadquery=yes], + [have_loadquery=no]) + fi +fi +if test "$have_loadquery" = "yes"; then + AC_DEFINE(HAVE_LOADQUERY, 1, [Define if AIX loadquery is available.]) +fi + +# Check for the fcntl function. +if test -n "${with_target_subdir}"; then + case "${host}" in + *-*-mingw*) have_fcntl=no ;; + *) have_fcntl=yes ;; + esac +else + AC_CHECK_FUNC(fcntl, [have_fcntl=yes], [have_fcntl=no]) +fi +if test "$have_fcntl" = "yes"; then + AC_DEFINE([HAVE_FCNTL], 1, + [Define to 1 if you have the fcntl function]) +fi + +AC_CHECK_DECLS([strnlen, getpagesize]) +AC_CHECK_FUNCS(lstat readlink) + +# Check for getexecname function. +if test -n "${with_target_subdir}"; then + case "${host}" in + *-*-solaris2*) have_getexecname=yes ;; + *) have_getexecname=no ;; + esac +else + AC_CHECK_FUNC(getexecname, [have_getexecname=yes], [have_getexecname=no]) +fi +if test "$have_getexecname" = "yes"; then + AC_DEFINE(HAVE_GETEXECNAME, 1, [Define if getexecname is available.]) +fi + +# Check for sysctl definitions. + +AC_CACHE_CHECK([for KERN_PROC], +[libbacktrace_cv_proc], +[AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ +#include <sys/types.h> +#include <sys/sysctl.h> +], [int mib0 = CTL_KERN; int mib1 = KERN_PROC; int mib2 = KERN_PROC_PATHNAME;])], + [libbacktrace_cv_proc=yes], + [libbacktrace_cv_proc=no])]) +if test "$libbacktrace_cv_proc" = "yes"; then + AC_DEFINE([HAVE_KERN_PROC], 1, + [Define to 1 if you have KERN_PROC and KERN_PROC_PATHNAME in <sys/sysctl.h>.]) +fi + +AC_CACHE_CHECK([for KERN_PROG_ARGS], +[libbacktrace_cv_procargs], +[AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ +#include <sys/types.h> +#include <sys/sysctl.h> +], [int mib0 = CTL_KERN; int mib1 = KERN_PROC_ARGS; int mib2 = KERN_PROC_PATHNAME;])], + [libbacktrace_cv_procargs=yes], + [libbacktrace_cv_procargs=no])]) +if test "$libbacktrace_cv_procargs" = "yes"; then + AC_DEFINE([HAVE_KERN_PROC_ARGS], 1, + [Define to 1 if you have KERN_PROCARGS and KERN_PROC_PATHNAME in <sys/sysctl.h>.]) +fi + +# Check for the clock_gettime function. +AC_CHECK_FUNCS(clock_gettime) +clock_gettime_link= +# At least for glibc, clock_gettime is in librt. But don't +# pull that in if it still doesn't give us the function we want. This +# test is copied from libgomp, and modified to not link in -lrt as +# we're using this for test timing only. +if test "$ac_cv_func_clock_gettime" = no; then + AC_CHECK_LIB(rt, clock_gettime, + [CLOCK_GETTIME_LINK=-lrt + AC_DEFINE(HAVE_CLOCK_GETTIME, 1, + [Define to 1 if you have the `clock_gettime' function.])]) +fi +AC_SUBST(CLOCK_GETTIME_LINK) + +dnl Test whether the compiler supports the -pthread option. +AC_CACHE_CHECK([whether -pthread is supported], +[libgo_cv_lib_pthread], +[CFLAGS_hold=$CFLAGS +CFLAGS="$CFLAGS -pthread" +AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], +[libgo_cv_lib_pthread=yes], +[libgo_cv_lib_pthread=no]) +CFLAGS=$CFLAGS_hold]) +PTHREAD_CFLAGS= +if test "$libgo_cv_lib_pthread" = yes; then + PTHREAD_CFLAGS=-pthread +fi +AC_SUBST(PTHREAD_CFLAGS) + +AM_CONDITIONAL(HAVE_PTHREAD, test "$libgo_cv_lib_pthread" = yes) + +dnl Test whether the compiler and the linker support the -gdwarf-5 option. +AC_CACHE_CHECK([whether -gdwarf-5 is supported], +[libbacktrace_cv_lib_dwarf5], +[CFLAGS_hold=$CFLAGS +CFLAGS="$CFLAGS -gdwarf-5" +AC_LINK_IFELSE([AC_LANG_PROGRAM([int i;], [return 0;])], +[libbacktrace_cv_lib_dwarf5=yes], +[libbacktrace_cv_lib_dwarf5=no]) +CFLAGS=$CFLAGS_hold]) +AM_CONDITIONAL(HAVE_DWARF5, test "$libbacktrace_cv_lib_dwarf5" = yes) + +AC_CHECK_LIB([z], [compress], + [AC_DEFINE(HAVE_ZLIB, 1, [Define if -lz is available.])]) +AM_CONDITIONAL(HAVE_ZLIB, test "$ac_cv_lib_z_compress" = yes) + +dnl Test whether the linker supports the --compress_debug_sections option. +AC_CACHE_CHECK([whether --compress-debug-sections is supported], +[libgo_cv_ld_compress], +[LDFLAGS_hold=$LDFLAGS +LDFLAGS="$LDFLAGS -Wl,--compress-debug-sections=zlib-gnu" +AC_LINK_IFELSE([AC_LANG_PROGRAM(,)], +[libgo_cv_ld_compress=yes], +[libgo_cv_ld_compress=no]) +LDFLAGS=$LDFLAGS_hold]) +AM_CONDITIONAL(HAVE_COMPRESSED_DEBUG, test "$libgo_cv_ld_compress" = yes) + +AC_ARG_VAR(OBJCOPY, [location of objcopy]) +AC_CHECK_PROG(OBJCOPY, objcopy, objcopy,) +AC_CHECK_PROG(READELF, readelf, readelf) +AC_CACHE_CHECK([whether objcopy supports debuglink], +[libbacktrace_cv_objcopy_debuglink], +[if test -n "${with_target_subdir}"; then + libbacktrace_cv_objcopy_debuglink=no +elif ! test -n "${OBJCOPY}"; then + libbacktrace_cv_objcopy_debuglink=no +elif ${OBJCOPY} --help | fgrep add-gnu-debuglink >/dev/null 2>&1; then + libbacktrace_cv_objcopy_debuglink=yes +else + libbacktrace_cv_objcopy_debuglink=no +fi]) +AM_CONDITIONAL(HAVE_OBJCOPY_DEBUGLINK, test "$libbacktrace_cv_objcopy_debuglink" = yes) + +AC_ARG_VAR(DSYMUTIL, [location of dsymutil]) +AC_CHECK_PROG(DSYMUTIL, dsymutil, dsymutil) +AM_CONDITIONAL(USE_DSYMUTIL, test -n "${DSYMUTIL}" -a "$FORMAT_FILE" = "macho.lo") + +AC_ARG_VAR(NM, [location of nm]) +AC_CHECK_PROG(NM, nm, nm) + +AC_CHECK_PROG(XZ, xz, xz) +AM_CONDITIONAL(HAVE_XZ, test "$XZ" != "") +AC_CHECK_PROG(COMM, comm, comm) +AM_CONDITIONAL(HAVE_COMM, test "$COMM" != "") + +AM_CONDITIONAL(HAVE_MINIDEBUG, + test "${with_target_subdir}" = "" -a "$FORMAT_FILE" = "elf.lo" -a "${OBJCOPY}" != "" -a "${NM}" != "" -a "${XZ}" != "" -a "${COMM}" != "") + +AC_CHECK_LIB([lzma], [lzma_auto_decoder], + [AC_DEFINE(HAVE_LIBLZMA, 1, [Define if -llzma is available.])]) +AM_CONDITIONAL(HAVE_LIBLZMA, test "$ac_cv_lib_lzma_lzma_auto_decoder" = yes) + +AC_CACHE_CHECK([whether tests can run], + [libbacktrace_cv_sys_native], + [AC_RUN_IFELSE([AC_LANG_PROGRAM([], [return 0;])], + [libbacktrace_cv_sys_native=yes], + [libbacktrace_cv_sys_native=no], + [libbacktrace_cv_sys_native=no])]) +AM_CONDITIONAL(NATIVE, test "$libbacktrace_cv_sys_native" = "yes") + +if test "${multilib}" = "yes"; then + multilib_arg="--enable-multilib" +else + multilib_arg= +fi + +AC_CONFIG_FILES(Makefile backtrace-supported.h) +AC_CONFIG_FILES(install-debuginfo-for-buildid.sh, chmod +x install-debuginfo-for-buildid.sh) + +# We need multilib support, but only if configuring for the target. +AC_CONFIG_COMMANDS([default], +[if test -n "$CONFIG_FILES"; then + if test -n "${with_target_subdir}"; then + # Multilibs need MULTISUBDIR defined correctly in certain makefiles so + # that multilib installs will end up installed in the correct place. + # The testsuite needs it for multilib-aware ABI baseline files. + # To work around this not being passed down from config-ml.in -> + # srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually + # append it here. Only modify Makefiles that have just been created. + # + # Also, get rid of this simulated-VPATH thing that automake does. + cat > vpsed << \_EOF + s!`test -f '$<' || echo '$(srcdir)/'`!! +_EOF + for i in $SUBDIRS; do + case $CONFIG_FILES in + *${i}/Makefile*) + #echo "Adding MULTISUBDIR to $i/Makefile" + sed -f vpsed $i/Makefile > tmp + grep '^MULTISUBDIR =' Makefile >> tmp + mv tmp $i/Makefile + ;; + esac + done + rm vpsed + fi + fi +], +[ +# Variables needed in config.status (file generation) which aren't already +# passed by autoconf. +SUBDIRS="$SUBDIRS" +]) + +AC_OUTPUT diff --git a/libbacktrace/dwarf.c b/libbacktrace/dwarf.c new file mode 100644 index 00000000000..e6b1f238cd3 --- /dev/null +++ b/libbacktrace/dwarf.c @@ -0,0 +1,4056 @@ +/* dwarf.c -- Get file/line information from DWARF for backtraces. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <errno.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> + +#include "dwarf2.h" +#include "filenames.h" + +#include "backtrace.h" +#include "internal.h" + +#if !defined(HAVE_DECL_STRNLEN) || !HAVE_DECL_STRNLEN + +/* If strnlen is not declared, provide our own version. */ + +static size_t +xstrnlen (const char *s, size_t maxlen) +{ + size_t i; + + for (i = 0; i < maxlen; ++i) + if (s[i] == '\0') + break; + return i; +} + +#define strnlen xstrnlen + +#endif + +/* A buffer to read DWARF info. */ + +struct dwarf_buf +{ + /* Buffer name for error messages. */ + const char *name; + /* Start of the buffer. */ + const unsigned char *start; + /* Next byte to read. */ + const unsigned char *buf; + /* The number of bytes remaining. */ + size_t left; + /* Whether the data is big-endian. */ + int is_bigendian; + /* Error callback routine. */ + backtrace_error_callback error_callback; + /* Data for error_callback. */ + void *data; + /* Non-zero if we've reported an underflow error. */ + int reported_underflow; +}; + +/* A single attribute in a DWARF abbreviation. */ + +struct attr +{ + /* The attribute name. */ + enum dwarf_attribute name; + /* The attribute form. */ + enum dwarf_form form; + /* The attribute value, for DW_FORM_implicit_const. */ + int64_t val; +}; + +/* A single DWARF abbreviation. */ + +struct abbrev +{ + /* The abbrev code--the number used to refer to the abbrev. */ + uint64_t code; + /* The entry tag. */ + enum dwarf_tag tag; + /* Non-zero if this abbrev has child entries. */ + int has_children; + /* The number of attributes. */ + size_t num_attrs; + /* The attributes. */ + struct attr *attrs; +}; + +/* The DWARF abbreviations for a compilation unit. This structure + only exists while reading the compilation unit. Most DWARF readers + seem to a hash table to map abbrev ID's to abbrev entries. + However, we primarily care about GCC, and GCC simply issues ID's in + numerical order starting at 1. So we simply keep a sorted vector, + and try to just look up the code. */ + +struct abbrevs +{ + /* The number of abbrevs in the vector. */ + size_t num_abbrevs; + /* The abbrevs, sorted by the code field. */ + struct abbrev *abbrevs; +}; + +/* The different kinds of attribute values. */ + +enum attr_val_encoding +{ + /* No attribute value. */ + ATTR_VAL_NONE, + /* An address. */ + ATTR_VAL_ADDRESS, + /* An index into the .debug_addr section, whose value is relative to + * the DW_AT_addr_base attribute of the compilation unit. */ + ATTR_VAL_ADDRESS_INDEX, + /* A unsigned integer. */ + ATTR_VAL_UINT, + /* A sigd integer. */ + ATTR_VAL_SINT, + /* A string. */ + ATTR_VAL_STRING, + /* An index into the .debug_str_offsets section. */ + ATTR_VAL_STRING_INDEX, + /* An offset to other data in the containing unit. */ + ATTR_VAL_REF_UNIT, + /* An offset to other data within the .debug_info section. */ + ATTR_VAL_REF_INFO, + /* An offset to other data within the alt .debug_info section. */ + ATTR_VAL_REF_ALT_INFO, + /* An offset to data in some other section. */ + ATTR_VAL_REF_SECTION, + /* A type signature. */ + ATTR_VAL_REF_TYPE, + /* An index into the .debug_rnglists section. */ + ATTR_VAL_RNGLISTS_INDEX, + /* A block of data (not represented). */ + ATTR_VAL_BLOCK, + /* An expression (not represented). */ + ATTR_VAL_EXPR, +}; + +/* An attribute value. */ + +struct attr_val +{ + /* How the value is stored in the field u. */ + enum attr_val_encoding encoding; + union + { + /* ATTR_VAL_ADDRESS*, ATTR_VAL_UINT, ATTR_VAL_REF*. */ + uint64_t uint; + /* ATTR_VAL_SINT. */ + int64_t sint; + /* ATTR_VAL_STRING. */ + const char *string; + /* ATTR_VAL_BLOCK not stored. */ + } u; +}; + +/* The line number program header. */ + +struct line_header +{ + /* The version of the line number information. */ + int version; + /* Address size. */ + int addrsize; + /* The minimum instruction length. */ + unsigned int min_insn_len; + /* The maximum number of ops per instruction. */ + unsigned int max_ops_per_insn; + /* The line base for special opcodes. */ + int line_base; + /* The line range for special opcodes. */ + unsigned int line_range; + /* The opcode base--the first special opcode. */ + unsigned int opcode_base; + /* Opcode lengths, indexed by opcode - 1. */ + const unsigned char *opcode_lengths; + /* The number of directory entries. */ + size_t dirs_count; + /* The directory entries. */ + const char **dirs; + /* The number of filenames. */ + size_t filenames_count; + /* The filenames. */ + const char **filenames; +}; + +/* A format description from a line header. */ + +struct line_header_format +{ + int lnct; /* LNCT code. */ + enum dwarf_form form; /* Form of entry data. */ +}; + +/* Map a single PC value to a file/line. We will keep a vector of + these sorted by PC value. Each file/line will be correct from the + PC up to the PC of the next entry if there is one. We allocate one + extra entry at the end so that we can use bsearch. */ + +struct line +{ + /* PC. */ + uintptr_t pc; + /* File name. Many entries in the array are expected to point to + the same file name. */ + const char *filename; + /* Line number. */ + int lineno; + /* Index of the object in the original array read from the DWARF + section, before it has been sorted. The index makes it possible + to use Quicksort and maintain stability. */ + int idx; +}; + +/* A growable vector of line number information. This is used while + reading the line numbers. */ + +struct line_vector +{ + /* Memory. This is an array of struct line. */ + struct backtrace_vector vec; + /* Number of valid mappings. */ + size_t count; +}; + +/* A function described in the debug info. */ + +struct function +{ + /* The name of the function. */ + const char *name; + /* If this is an inlined function, the filename of the call + site. */ + const char *caller_filename; + /* If this is an inlined function, the line number of the call + site. */ + int caller_lineno; + /* Map PC ranges to inlined functions. */ + struct function_addrs *function_addrs; + size_t function_addrs_count; +}; + +/* An address range for a function. This maps a PC value to a + specific function. */ + +struct function_addrs +{ + /* Range is LOW <= PC < HIGH. */ + uint64_t low; + uint64_t high; + /* Function for this address range. */ + struct function *function; +}; + +/* A growable vector of function address ranges. */ + +struct function_vector +{ + /* Memory. This is an array of struct function_addrs. */ + struct backtrace_vector vec; + /* Number of address ranges present. */ + size_t count; +}; + +/* A DWARF compilation unit. This only holds the information we need + to map a PC to a file and line. */ + +struct unit +{ + /* The first entry for this compilation unit. */ + const unsigned char *unit_data; + /* The length of the data for this compilation unit. */ + size_t unit_data_len; + /* The offset of UNIT_DATA from the start of the information for + this compilation unit. */ + size_t unit_data_offset; + /* Offset of the start of the compilation unit from the start of the + .debug_info section. */ + size_t low_offset; + /* Offset of the end of the compilation unit from the start of the + .debug_info section. */ + size_t high_offset; + /* DWARF version. */ + int version; + /* Whether unit is DWARF64. */ + int is_dwarf64; + /* Address size. */ + int addrsize; + /* Offset into line number information. */ + off_t lineoff; + /* Offset of compilation unit in .debug_str_offsets. */ + uint64_t str_offsets_base; + /* Offset of compilation unit in .debug_addr. */ + uint64_t addr_base; + /* Offset of compilation unit in .debug_rnglists. */ + uint64_t rnglists_base; + /* Primary source file. */ + const char *filename; + /* Compilation command working directory. */ + const char *comp_dir; + /* Absolute file name, only set if needed. */ + const char *abs_filename; + /* The abbreviations for this unit. */ + struct abbrevs abbrevs; + + /* The fields above this point are read in during initialization and + may be accessed freely. The fields below this point are read in + as needed, and therefore require care, as different threads may + try to initialize them simultaneously. */ + + /* PC to line number mapping. This is NULL if the values have not + been read. This is (struct line *) -1 if there was an error + reading the values. */ + struct line *lines; + /* Number of entries in lines. */ + size_t lines_count; + /* PC ranges to function. */ + struct function_addrs *function_addrs; + size_t function_addrs_count; +}; + +/* An address range for a compilation unit. This maps a PC value to a + specific compilation unit. Note that we invert the representation + in DWARF: instead of listing the units and attaching a list of + ranges, we list the ranges and have each one point to the unit. + This lets us do a binary search to find the unit. */ + +struct unit_addrs +{ + /* Range is LOW <= PC < HIGH. */ + uint64_t low; + uint64_t high; + /* Compilation unit for this address range. */ + struct unit *u; +}; + +/* A growable vector of compilation unit address ranges. */ + +struct unit_addrs_vector +{ + /* Memory. This is an array of struct unit_addrs. */ + struct backtrace_vector vec; + /* Number of address ranges present. */ + size_t count; +}; + +/* A growable vector of compilation unit pointer. */ + +struct unit_vector +{ + struct backtrace_vector vec; + size_t count; +}; + +/* The information we need to map a PC to a file and line. */ + +struct dwarf_data +{ + /* The data for the next file we know about. */ + struct dwarf_data *next; + /* The data for .gnu_debugaltlink. */ + struct dwarf_data *altlink; + /* The base address for this file. */ + uintptr_t base_address; + /* A sorted list of address ranges. */ + struct unit_addrs *addrs; + /* Number of address ranges in list. */ + size_t addrs_count; + /* A sorted list of units. */ + struct unit **units; + /* Number of units in the list. */ + size_t units_count; + /* The unparsed DWARF debug data. */ + struct dwarf_sections dwarf_sections; + /* Whether the data is big-endian or not. */ + int is_bigendian; + /* A vector used for function addresses. We keep this here so that + we can grow the vector as we read more functions. */ + struct function_vector fvec; +}; + +/* Report an error for a DWARF buffer. */ + +static void +dwarf_buf_error (struct dwarf_buf *buf, const char *msg, int errnum) +{ + char b[200]; + + snprintf (b, sizeof b, "%s in %s at %d", + msg, buf->name, (int) (buf->buf - buf->start)); + buf->error_callback (buf->data, b, errnum); +} + +/* Require at least COUNT bytes in BUF. Return 1 if all is well, 0 on + error. */ + +static int +require (struct dwarf_buf *buf, size_t count) +{ + if (buf->left >= count) + return 1; + + if (!buf->reported_underflow) + { + dwarf_buf_error (buf, "DWARF underflow", 0); + buf->reported_underflow = 1; + } + + return 0; +} + +/* Advance COUNT bytes in BUF. Return 1 if all is well, 0 on + error. */ + +static int +advance (struct dwarf_buf *buf, size_t count) +{ + if (!require (buf, count)) + return 0; + buf->buf += count; + buf->left -= count; + return 1; +} + +/* Read one zero-terminated string from BUF and advance past the string. */ + +static const char * +read_string (struct dwarf_buf *buf) +{ + const char *p = (const char *)buf->buf; + size_t len = strnlen (p, buf->left); + + /* - If len == left, we ran out of buffer before finding the zero terminator. + Generate an error by advancing len + 1. + - If len < left, advance by len + 1 to skip past the zero terminator. */ + size_t count = len + 1; + + if (!advance (buf, count)) + return NULL; + + return p; +} + +/* Read one byte from BUF and advance 1 byte. */ + +static unsigned char +read_byte (struct dwarf_buf *buf) +{ + const unsigned char *p = buf->buf; + + if (!advance (buf, 1)) + return 0; + return p[0]; +} + +/* Read a signed char from BUF and advance 1 byte. */ + +static signed char +read_sbyte (struct dwarf_buf *buf) +{ + const unsigned char *p = buf->buf; + + if (!advance (buf, 1)) + return 0; + return (*p ^ 0x80) - 0x80; +} + +/* Read a uint16 from BUF and advance 2 bytes. */ + +static uint16_t +read_uint16 (struct dwarf_buf *buf) +{ + const unsigned char *p = buf->buf; + + if (!advance (buf, 2)) + return 0; + if (buf->is_bigendian) + return ((uint16_t) p[0] << 8) | (uint16_t) p[1]; + else + return ((uint16_t) p[1] << 8) | (uint16_t) p[0]; +} + +/* Read a 24 bit value from BUF and advance 3 bytes. */ + +static uint32_t +read_uint24 (struct dwarf_buf *buf) +{ + const unsigned char *p = buf->buf; + + if (!advance (buf, 3)) + return 0; + if (buf->is_bigendian) + return (((uint32_t) p[0] << 16) | ((uint32_t) p[1] << 8) + | (uint32_t) p[2]); + else + return (((uint32_t) p[2] << 16) | ((uint32_t) p[1] << 8) + | (uint32_t) p[0]); +} + +/* Read a uint32 from BUF and advance 4 bytes. */ + +static uint32_t +read_uint32 (struct dwarf_buf *buf) +{ + const unsigned char *p = buf->buf; + + if (!advance (buf, 4)) + return 0; + if (buf->is_bigendian) + return (((uint32_t) p[0] << 24) | ((uint32_t) p[1] << 16) + | ((uint32_t) p[2] << 8) | (uint32_t) p[3]); + else + return (((uint32_t) p[3] << 24) | ((uint32_t) p[2] << 16) + | ((uint32_t) p[1] << 8) | (uint32_t) p[0]); +} + +/* Read a uint64 from BUF and advance 8 bytes. */ + +static uint64_t +read_uint64 (struct dwarf_buf *buf) +{ + const unsigned char *p = buf->buf; + + if (!advance (buf, 8)) + return 0; + if (buf->is_bigendian) + return (((uint64_t) p[0] << 56) | ((uint64_t) p[1] << 48) + | ((uint64_t) p[2] << 40) | ((uint64_t) p[3] << 32) + | ((uint64_t) p[4] << 24) | ((uint64_t) p[5] << 16) + | ((uint64_t) p[6] << 8) | (uint64_t) p[7]); + else + return (((uint64_t) p[7] << 56) | ((uint64_t) p[6] << 48) + | ((uint64_t) p[5] << 40) | ((uint64_t) p[4] << 32) + | ((uint64_t) p[3] << 24) | ((uint64_t) p[2] << 16) + | ((uint64_t) p[1] << 8) | (uint64_t) p[0]); +} + +/* Read an offset from BUF and advance the appropriate number of + bytes. */ + +static uint64_t +read_offset (struct dwarf_buf *buf, int is_dwarf64) +{ + if (is_dwarf64) + return read_uint64 (buf); + else + return read_uint32 (buf); +} + +/* Read an address from BUF and advance the appropriate number of + bytes. */ + +static uint64_t +read_address (struct dwarf_buf *buf, int addrsize) +{ + switch (addrsize) + { + case 1: + return read_byte (buf); + case 2: + return read_uint16 (buf); + case 4: + return read_uint32 (buf); + case 8: + return read_uint64 (buf); + default: + dwarf_buf_error (buf, "unrecognized address size", 0); + return 0; + } +} + +/* Return whether a value is the highest possible address, given the + address size. */ + +static int +is_highest_address (uint64_t address, int addrsize) +{ + switch (addrsize) + { + case 1: + return address == (unsigned char) -1; + case 2: + return address == (uint16_t) -1; + case 4: + return address == (uint32_t) -1; + case 8: + return address == (uint64_t) -1; + default: + return 0; + } +} + +/* Read an unsigned LEB128 number. */ + +static uint64_t +read_uleb128 (struct dwarf_buf *buf) +{ + uint64_t ret; + unsigned int shift; + int overflow; + unsigned char b; + + ret = 0; + shift = 0; + overflow = 0; + do + { + const unsigned char *p; + + p = buf->buf; + if (!advance (buf, 1)) + return 0; + b = *p; + if (shift < 64) + ret |= ((uint64_t) (b & 0x7f)) << shift; + else if (!overflow) + { + dwarf_buf_error (buf, "LEB128 overflows uint64_t", 0); + overflow = 1; + } + shift += 7; + } + while ((b & 0x80) != 0); + + return ret; +} + +/* Read a signed LEB128 number. */ + +static int64_t +read_sleb128 (struct dwarf_buf *buf) +{ + uint64_t val; + unsigned int shift; + int overflow; + unsigned char b; + + val = 0; + shift = 0; + overflow = 0; + do + { + const unsigned char *p; + + p = buf->buf; + if (!advance (buf, 1)) + return 0; + b = *p; + if (shift < 64) + val |= ((uint64_t) (b & 0x7f)) << shift; + else if (!overflow) + { + dwarf_buf_error (buf, "signed LEB128 overflows uint64_t", 0); + overflow = 1; + } + shift += 7; + } + while ((b & 0x80) != 0); + + if ((b & 0x40) != 0 && shift < 64) + val |= ((uint64_t) -1) << shift; + + return (int64_t) val; +} + +/* Return the length of an LEB128 number. */ + +static size_t +leb128_len (const unsigned char *p) +{ + size_t ret; + + ret = 1; + while ((*p & 0x80) != 0) + { + ++p; + ++ret; + } + return ret; +} + +/* Read initial_length from BUF and advance the appropriate number of bytes. */ + +static uint64_t +read_initial_length (struct dwarf_buf *buf, int *is_dwarf64) +{ + uint64_t len; + + len = read_uint32 (buf); + if (len == 0xffffffff) + { + len = read_uint64 (buf); + *is_dwarf64 = 1; + } + else + *is_dwarf64 = 0; + + return len; +} + +/* Free an abbreviations structure. */ + +static void +free_abbrevs (struct backtrace_state *state, struct abbrevs *abbrevs, + backtrace_error_callback error_callback, void *data) +{ + size_t i; + + for (i = 0; i < abbrevs->num_abbrevs; ++i) + backtrace_free (state, abbrevs->abbrevs[i].attrs, + abbrevs->abbrevs[i].num_attrs * sizeof (struct attr), + error_callback, data); + backtrace_free (state, abbrevs->abbrevs, + abbrevs->num_abbrevs * sizeof (struct abbrev), + error_callback, data); + abbrevs->num_abbrevs = 0; + abbrevs->abbrevs = NULL; +} + +/* Read an attribute value. Returns 1 on success, 0 on failure. If + the value can be represented as a uint64_t, sets *VAL and sets + *IS_VALID to 1. We don't try to store the value of other attribute + forms, because we don't care about them. */ + +static int +read_attribute (enum dwarf_form form, uint64_t implicit_val, + struct dwarf_buf *buf, int is_dwarf64, int version, + int addrsize, const struct dwarf_sections *dwarf_sections, + struct dwarf_data *altlink, struct attr_val *val) +{ + /* Avoid warnings about val.u.FIELD may be used uninitialized if + this function is inlined. The warnings aren't valid but can + occur because the different fields are set and used + conditionally. */ + memset (val, 0, sizeof *val); + + switch (form) + { + case DW_FORM_addr: + val->encoding = ATTR_VAL_ADDRESS; + val->u.uint = read_address (buf, addrsize); + return 1; + case DW_FORM_block2: + val->encoding = ATTR_VAL_BLOCK; + return advance (buf, read_uint16 (buf)); + case DW_FORM_block4: + val->encoding = ATTR_VAL_BLOCK; + return advance (buf, read_uint32 (buf)); + case DW_FORM_data2: + val->encoding = ATTR_VAL_UINT; + val->u.uint = read_uint16 (buf); + return 1; + case DW_FORM_data4: + val->encoding = ATTR_VAL_UINT; + val->u.uint = read_uint32 (buf); + return 1; + case DW_FORM_data8: + val->encoding = ATTR_VAL_UINT; + val->u.uint = read_uint64 (buf); + return 1; + case DW_FORM_data16: + val->encoding = ATTR_VAL_BLOCK; + return advance (buf, 16); + case DW_FORM_string: + val->encoding = ATTR_VAL_STRING; + val->u.string = read_string (buf); + return val->u.string == NULL ? 0 : 1; + case DW_FORM_block: + val->encoding = ATTR_VAL_BLOCK; + return advance (buf, read_uleb128 (buf)); + case DW_FORM_block1: + val->encoding = ATTR_VAL_BLOCK; + return advance (buf, read_byte (buf)); + case DW_FORM_data1: + val->encoding = ATTR_VAL_UINT; + val->u.uint = read_byte (buf); + return 1; + case DW_FORM_flag: + val->encoding = ATTR_VAL_UINT; + val->u.uint = read_byte (buf); + return 1; + case DW_FORM_sdata: + val->encoding = ATTR_VAL_SINT; + val->u.sint = read_sleb128 (buf); + return 1; + case DW_FORM_strp: + { + uint64_t offset; + + offset = read_offset (buf, is_dwarf64); + if (offset >= dwarf_sections->size[DEBUG_STR]) + { + dwarf_buf_error (buf, "DW_FORM_strp out of range", 0); + return 0; + } + val->encoding = ATTR_VAL_STRING; + val->u.string = + (const char *) dwarf_sections->data[DEBUG_STR] + offset; + return 1; + } + case DW_FORM_line_strp: + { + uint64_t offset; + + offset = read_offset (buf, is_dwarf64); + if (offset >= dwarf_sections->size[DEBUG_LINE_STR]) + { + dwarf_buf_error (buf, "DW_FORM_line_strp out of range", 0); + return 0; + } + val->encoding = ATTR_VAL_STRING; + val->u.string = + (const char *) dwarf_sections->data[DEBUG_LINE_STR] + offset; + return 1; + } + case DW_FORM_udata: + val->encoding = ATTR_VAL_UINT; + val->u.uint = read_uleb128 (buf); + return 1; + case DW_FORM_ref_addr: + val->encoding = ATTR_VAL_REF_INFO; + if (version == 2) + val->u.uint = read_address (buf, addrsize); + else + val->u.uint = read_offset (buf, is_dwarf64); + return 1; + case DW_FORM_ref1: + val->encoding = ATTR_VAL_REF_UNIT; + val->u.uint = read_byte (buf); + return 1; + case DW_FORM_ref2: + val->encoding = ATTR_VAL_REF_UNIT; + val->u.uint = read_uint16 (buf); + return 1; + case DW_FORM_ref4: + val->encoding = ATTR_VAL_REF_UNIT; + val->u.uint = read_uint32 (buf); + return 1; + case DW_FORM_ref8: + val->encoding = ATTR_VAL_REF_UNIT; + val->u.uint = read_uint64 (buf); + return 1; + case DW_FORM_ref_udata: + val->encoding = ATTR_VAL_REF_UNIT; + val->u.uint = read_uleb128 (buf); + return 1; + case DW_FORM_indirect: + { + uint64_t form; + + form = read_uleb128 (buf); + if (form == DW_FORM_implicit_const) + { + dwarf_buf_error (buf, + "DW_FORM_indirect to DW_FORM_implicit_const", + 0); + return 0; + } + return read_attribute ((enum dwarf_form) form, 0, buf, is_dwarf64, + version, addrsize, dwarf_sections, altlink, + val); + } + case DW_FORM_sec_offset: + val->encoding = ATTR_VAL_REF_SECTION; + val->u.uint = read_offset (buf, is_dwarf64); + return 1; + case DW_FORM_exprloc: + val->encoding = ATTR_VAL_EXPR; + return advance (buf, read_uleb128 (buf)); + case DW_FORM_flag_present: + val->encoding = ATTR_VAL_UINT; + val->u.uint = 1; + return 1; + case DW_FORM_ref_sig8: + val->encoding = ATTR_VAL_REF_TYPE; + val->u.uint = read_uint64 (buf); + return 1; + case DW_FORM_strx: case DW_FORM_strx1: case DW_FORM_strx2: + case DW_FORM_strx3: case DW_FORM_strx4: + { + uint64_t offset; + + switch (form) + { + case DW_FORM_strx: + offset = read_uleb128 (buf); + break; + case DW_FORM_strx1: + offset = read_byte (buf); + break; + case DW_FORM_strx2: + offset = read_uint16 (buf); + break; + case DW_FORM_strx3: + offset = read_uint24 (buf); + break; + case DW_FORM_strx4: + offset = read_uint32 (buf); + break; + default: + /* This case can't happen. */ + return 0; + } + val->encoding = ATTR_VAL_STRING_INDEX; + val->u.uint = offset; + return 1; + } + case DW_FORM_addrx: case DW_FORM_addrx1: case DW_FORM_addrx2: + case DW_FORM_addrx3: case DW_FORM_addrx4: + { + uint64_t offset; + + switch (form) + { + case DW_FORM_addrx: + offset = read_uleb128 (buf); + break; + case DW_FORM_addrx1: + offset = read_byte (buf); + break; + case DW_FORM_addrx2: + offset = read_uint16 (buf); + break; + case DW_FORM_addrx3: + offset = read_uint24 (buf); + break; + case DW_FORM_addrx4: + offset = read_uint32 (buf); + break; + default: + /* This case can't happen. */ + return 0; + } + val->encoding = ATTR_VAL_ADDRESS_INDEX; + val->u.uint = offset; + return 1; + } + case DW_FORM_ref_sup4: + val->encoding = ATTR_VAL_REF_SECTION; + val->u.uint = read_uint32 (buf); + return 1; + case DW_FORM_ref_sup8: + val->encoding = ATTR_VAL_REF_SECTION; + val->u.uint = read_uint64 (buf); + return 1; + case DW_FORM_implicit_const: + val->encoding = ATTR_VAL_UINT; + val->u.uint = implicit_val; + return 1; + case DW_FORM_loclistx: + /* We don't distinguish this from DW_FORM_sec_offset. It + * shouldn't matter since we don't care about loclists. */ + val->encoding = ATTR_VAL_REF_SECTION; + val->u.uint = read_uleb128 (buf); + return 1; + case DW_FORM_rnglistx: + val->encoding = ATTR_VAL_RNGLISTS_INDEX; + val->u.uint = read_uleb128 (buf); + return 1; + case DW_FORM_GNU_addr_index: + val->encoding = ATTR_VAL_REF_SECTION; + val->u.uint = read_uleb128 (buf); + return 1; + case DW_FORM_GNU_str_index: + val->encoding = ATTR_VAL_REF_SECTION; + val->u.uint = read_uleb128 (buf); + return 1; + case DW_FORM_GNU_ref_alt: + val->u.uint = read_offset (buf, is_dwarf64); + if (altlink == NULL) + { + val->encoding = ATTR_VAL_NONE; + return 1; + } + val->encoding = ATTR_VAL_REF_ALT_INFO; + return 1; + case DW_FORM_strp_sup: case DW_FORM_GNU_strp_alt: + { + uint64_t offset; + + offset = read_offset (buf, is_dwarf64); + if (altlink == NULL) + { + val->encoding = ATTR_VAL_NONE; + return 1; + } + if (offset >= altlink->dwarf_sections.size[DEBUG_STR]) + { + dwarf_buf_error (buf, "DW_FORM_strp_sup out of range", 0); + return 0; + } + val->encoding = ATTR_VAL_STRING; + val->u.string = + (const char *) altlink->dwarf_sections.data[DEBUG_STR] + offset; + return 1; + } + default: + dwarf_buf_error (buf, "unrecognized DWARF form", -1); + return 0; + } +} + +/* If we can determine the value of a string attribute, set *STRING to + point to the string. Return 1 on success, 0 on error. If we don't + know the value, we consider that a success, and we don't change + *STRING. An error is only reported for some sort of out of range + offset. */ + +static int +resolve_string (const struct dwarf_sections *dwarf_sections, int is_dwarf64, + int is_bigendian, uint64_t str_offsets_base, + const struct attr_val *val, + backtrace_error_callback error_callback, void *data, + const char **string) +{ + switch (val->encoding) + { + case ATTR_VAL_STRING: + *string = val->u.string; + return 1; + + case ATTR_VAL_STRING_INDEX: + { + uint64_t offset; + struct dwarf_buf offset_buf; + + offset = val->u.uint * (is_dwarf64 ? 8 : 4) + str_offsets_base; + if (offset + (is_dwarf64 ? 8 : 4) + > dwarf_sections->size[DEBUG_STR_OFFSETS]) + { + error_callback (data, "DW_FORM_strx value out of range", 0); + return 0; + } + + offset_buf.name = ".debug_str_offsets"; + offset_buf.start = dwarf_sections->data[DEBUG_STR_OFFSETS]; + offset_buf.buf = dwarf_sections->data[DEBUG_STR_OFFSETS] + offset; + offset_buf.left = dwarf_sections->size[DEBUG_STR_OFFSETS] - offset; + offset_buf.is_bigendian = is_bigendian; + offset_buf.error_callback = error_callback; + offset_buf.data = data; + offset_buf.reported_underflow = 0; + + offset = read_offset (&offset_buf, is_dwarf64); + if (offset >= dwarf_sections->size[DEBUG_STR]) + { + dwarf_buf_error (&offset_buf, + "DW_FORM_strx offset out of range", + 0); + return 0; + } + *string = (const char *) dwarf_sections->data[DEBUG_STR] + offset; + return 1; + } + + default: + return 1; + } +} + +/* Set *ADDRESS to the real address for a ATTR_VAL_ADDRESS_INDEX. + Return 1 on success, 0 on error. */ + +static int +resolve_addr_index (const struct dwarf_sections *dwarf_sections, + uint64_t addr_base, int addrsize, int is_bigendian, + uint64_t addr_index, + backtrace_error_callback error_callback, void *data, + uint64_t *address) +{ + uint64_t offset; + struct dwarf_buf addr_buf; + + offset = addr_index * addrsize + addr_base; + if (offset + addrsize > dwarf_sections->size[DEBUG_ADDR]) + { + error_callback (data, "DW_FORM_addrx value out of range", 0); + return 0; + } + + addr_buf.name = ".debug_addr"; + addr_buf.start = dwarf_sections->data[DEBUG_ADDR]; + addr_buf.buf = dwarf_sections->data[DEBUG_ADDR] + offset; + addr_buf.left = dwarf_sections->size[DEBUG_ADDR] - offset; + addr_buf.is_bigendian = is_bigendian; + addr_buf.error_callback = error_callback; + addr_buf.data = data; + addr_buf.reported_underflow = 0; + + *address = read_address (&addr_buf, addrsize); + return 1; +} + +/* Compare a unit offset against a unit for bsearch. */ + +static int +units_search (const void *vkey, const void *ventry) +{ + const size_t *key = (const size_t *) vkey; + const struct unit *entry = *((const struct unit *const *) ventry); + size_t offset; + + offset = *key; + if (offset < entry->low_offset) + return -1; + else if (offset >= entry->high_offset) + return 1; + else + return 0; +} + +/* Find a unit in PU containing OFFSET. */ + +static struct unit * +find_unit (struct unit **pu, size_t units_count, size_t offset) +{ + struct unit **u; + u = bsearch (&offset, pu, units_count, sizeof (struct unit *), units_search); + return u == NULL ? NULL : *u; +} + +/* Compare function_addrs for qsort. When ranges are nested, make the + smallest one sort last. */ + +static int +function_addrs_compare (const void *v1, const void *v2) +{ + const struct function_addrs *a1 = (const struct function_addrs *) v1; + const struct function_addrs *a2 = (const struct function_addrs *) v2; + + if (a1->low < a2->low) + return -1; + if (a1->low > a2->low) + return 1; + if (a1->high < a2->high) + return 1; + if (a1->high > a2->high) + return -1; + return strcmp (a1->function->name, a2->function->name); +} + +/* Compare a PC against a function_addrs for bsearch. We always + allocate an entra entry at the end of the vector, so that this + routine can safely look at the next entry. Note that if there are + multiple ranges containing PC, which one will be returned is + unpredictable. We compensate for that in dwarf_fileline. */ + +static int +function_addrs_search (const void *vkey, const void *ventry) +{ + const uintptr_t *key = (const uintptr_t *) vkey; + const struct function_addrs *entry = (const struct function_addrs *) ventry; + uintptr_t pc; + + pc = *key; + if (pc < entry->low) + return -1; + else if (pc > (entry + 1)->low) + return 1; + else + return 0; +} + +/* Add a new compilation unit address range to a vector. This is + called via add_ranges. Returns 1 on success, 0 on failure. */ + +static int +add_unit_addr (struct backtrace_state *state, void *rdata, + uint64_t lowpc, uint64_t highpc, + backtrace_error_callback error_callback, void *data, + void *pvec) +{ + struct unit *u = (struct unit *) rdata; + struct unit_addrs_vector *vec = (struct unit_addrs_vector *) pvec; + struct unit_addrs *p; + + /* Try to merge with the last entry. */ + if (vec->count > 0) + { + p = (struct unit_addrs *) vec->vec.base + (vec->count - 1); + if ((lowpc == p->high || lowpc == p->high + 1) + && u == p->u) + { + if (highpc > p->high) + p->high = highpc; + return 1; + } + } + + p = ((struct unit_addrs *) + backtrace_vector_grow (state, sizeof (struct unit_addrs), + error_callback, data, &vec->vec)); + if (p == NULL) + return 0; + + p->low = lowpc; + p->high = highpc; + p->u = u; + + ++vec->count; + + return 1; +} + +/* Compare unit_addrs for qsort. When ranges are nested, make the + smallest one sort last. */ + +static int +unit_addrs_compare (const void *v1, const void *v2) +{ + const struct unit_addrs *a1 = (const struct unit_addrs *) v1; + const struct unit_addrs *a2 = (const struct unit_addrs *) v2; + + if (a1->low < a2->low) + return -1; + if (a1->low > a2->low) + return 1; + if (a1->high < a2->high) + return 1; + if (a1->high > a2->high) + return -1; + if (a1->u->lineoff < a2->u->lineoff) + return -1; + if (a1->u->lineoff > a2->u->lineoff) + return 1; + return 0; +} + +/* Compare a PC against a unit_addrs for bsearch. We always allocate + an entry entry at the end of the vector, so that this routine can + safely look at the next entry. Note that if there are multiple + ranges containing PC, which one will be returned is unpredictable. + We compensate for that in dwarf_fileline. */ + +static int +unit_addrs_search (const void *vkey, const void *ventry) +{ + const uintptr_t *key = (const uintptr_t *) vkey; + const struct unit_addrs *entry = (const struct unit_addrs *) ventry; + uintptr_t pc; + + pc = *key; + if (pc < entry->low) + return -1; + else if (pc > (entry + 1)->low) + return 1; + else + return 0; +} + +/* Sort the line vector by PC. We want a stable sort here to maintain + the order of lines for the same PC values. Since the sequence is + being sorted in place, their addresses cannot be relied on to + maintain stability. That is the purpose of the index member. */ + +static int +line_compare (const void *v1, const void *v2) +{ + const struct line *ln1 = (const struct line *) v1; + const struct line *ln2 = (const struct line *) v2; + + if (ln1->pc < ln2->pc) + return -1; + else if (ln1->pc > ln2->pc) + return 1; + else if (ln1->idx < ln2->idx) + return -1; + else if (ln1->idx > ln2->idx) + return 1; + else + return 0; +} + +/* Find a PC in a line vector. We always allocate an extra entry at + the end of the lines vector, so that this routine can safely look + at the next entry. Note that when there are multiple mappings for + the same PC value, this will return the last one. */ + +static int +line_search (const void *vkey, const void *ventry) +{ + const uintptr_t *key = (const uintptr_t *) vkey; + const struct line *entry = (const struct line *) ventry; + uintptr_t pc; + + pc = *key; + if (pc < entry->pc) + return -1; + else if (pc >= (entry + 1)->pc) + return 1; + else + return 0; +} + +/* Sort the abbrevs by the abbrev code. This function is passed to + both qsort and bsearch. */ + +static int +abbrev_compare (const void *v1, const void *v2) +{ + const struct abbrev *a1 = (const struct abbrev *) v1; + const struct abbrev *a2 = (const struct abbrev *) v2; + + if (a1->code < a2->code) + return -1; + else if (a1->code > a2->code) + return 1; + else + { + /* This really shouldn't happen. It means there are two + different abbrevs with the same code, and that means we don't + know which one lookup_abbrev should return. */ + return 0; + } +} + +/* Read the abbreviation table for a compilation unit. Returns 1 on + success, 0 on failure. */ + +static int +read_abbrevs (struct backtrace_state *state, uint64_t abbrev_offset, + const unsigned char *dwarf_abbrev, size_t dwarf_abbrev_size, + int is_bigendian, backtrace_error_callback error_callback, + void *data, struct abbrevs *abbrevs) +{ + struct dwarf_buf abbrev_buf; + struct dwarf_buf count_buf; + size_t num_abbrevs; + + abbrevs->num_abbrevs = 0; + abbrevs->abbrevs = NULL; + + if (abbrev_offset >= dwarf_abbrev_size) + { + error_callback (data, "abbrev offset out of range", 0); + return 0; + } + + abbrev_buf.name = ".debug_abbrev"; + abbrev_buf.start = dwarf_abbrev; + abbrev_buf.buf = dwarf_abbrev + abbrev_offset; + abbrev_buf.left = dwarf_abbrev_size - abbrev_offset; + abbrev_buf.is_bigendian = is_bigendian; + abbrev_buf.error_callback = error_callback; + abbrev_buf.data = data; + abbrev_buf.reported_underflow = 0; + + /* Count the number of abbrevs in this list. */ + + count_buf = abbrev_buf; + num_abbrevs = 0; + while (read_uleb128 (&count_buf) != 0) + { + if (count_buf.reported_underflow) + return 0; + ++num_abbrevs; + // Skip tag. + read_uleb128 (&count_buf); + // Skip has_children. + read_byte (&count_buf); + // Skip attributes. + while (read_uleb128 (&count_buf) != 0) + { + uint64_t form; + + form = read_uleb128 (&count_buf); + if ((enum dwarf_form) form == DW_FORM_implicit_const) + read_sleb128 (&count_buf); + } + // Skip form of last attribute. + read_uleb128 (&count_buf); + } + + if (count_buf.reported_underflow) + return 0; + + if (num_abbrevs == 0) + return 1; + + abbrevs->abbrevs = ((struct abbrev *) + backtrace_alloc (state, + num_abbrevs * sizeof (struct abbrev), + error_callback, data)); + if (abbrevs->abbrevs == NULL) + return 0; + abbrevs->num_abbrevs = num_abbrevs; + memset (abbrevs->abbrevs, 0, num_abbrevs * sizeof (struct abbrev)); + + num_abbrevs = 0; + while (1) + { + uint64_t code; + struct abbrev a; + size_t num_attrs; + struct attr *attrs; + + if (abbrev_buf.reported_underflow) + goto fail; + + code = read_uleb128 (&abbrev_buf); + if (code == 0) + break; + + a.code = code; + a.tag = (enum dwarf_tag) read_uleb128 (&abbrev_buf); + a.has_children = read_byte (&abbrev_buf); + + count_buf = abbrev_buf; + num_attrs = 0; + while (read_uleb128 (&count_buf) != 0) + { + uint64_t form; + + ++num_attrs; + form = read_uleb128 (&count_buf); + if ((enum dwarf_form) form == DW_FORM_implicit_const) + read_sleb128 (&count_buf); + } + + if (num_attrs == 0) + { + attrs = NULL; + read_uleb128 (&abbrev_buf); + read_uleb128 (&abbrev_buf); + } + else + { + attrs = ((struct attr *) + backtrace_alloc (state, num_attrs * sizeof *attrs, + error_callback, data)); + if (attrs == NULL) + goto fail; + num_attrs = 0; + while (1) + { + uint64_t name; + uint64_t form; + + name = read_uleb128 (&abbrev_buf); + form = read_uleb128 (&abbrev_buf); + if (name == 0) + break; + attrs[num_attrs].name = (enum dwarf_attribute) name; + attrs[num_attrs].form = (enum dwarf_form) form; + if ((enum dwarf_form) form == DW_FORM_implicit_const) + attrs[num_attrs].val = read_sleb128 (&abbrev_buf); + else + attrs[num_attrs].val = 0; + ++num_attrs; + } + } + + a.num_attrs = num_attrs; + a.attrs = attrs; + + abbrevs->abbrevs[num_abbrevs] = a; + ++num_abbrevs; + } + + backtrace_qsort (abbrevs->abbrevs, abbrevs->num_abbrevs, + sizeof (struct abbrev), abbrev_compare); + + return 1; + + fail: + free_abbrevs (state, abbrevs, error_callback, data); + return 0; +} + +/* Return the abbrev information for an abbrev code. */ + +static const struct abbrev * +lookup_abbrev (struct abbrevs *abbrevs, uint64_t code, + backtrace_error_callback error_callback, void *data) +{ + struct abbrev key; + void *p; + + /* With GCC, where abbrevs are simply numbered in order, we should + be able to just look up the entry. */ + if (code - 1 < abbrevs->num_abbrevs + && abbrevs->abbrevs[code - 1].code == code) + return &abbrevs->abbrevs[code - 1]; + + /* Otherwise we have to search. */ + memset (&key, 0, sizeof key); + key.code = code; + p = bsearch (&key, abbrevs->abbrevs, abbrevs->num_abbrevs, + sizeof (struct abbrev), abbrev_compare); + if (p == NULL) + { + error_callback (data, "invalid abbreviation code", 0); + return NULL; + } + return (const struct abbrev *) p; +} + +/* This struct is used to gather address range information while + reading attributes. We use this while building a mapping from + address ranges to compilation units and then again while mapping + from address ranges to function entries. Normally either + lowpc/highpc is set or ranges is set. */ + +struct pcrange { + uint64_t lowpc; /* The low PC value. */ + int have_lowpc; /* Whether a low PC value was found. */ + int lowpc_is_addr_index; /* Whether lowpc is in .debug_addr. */ + uint64_t highpc; /* The high PC value. */ + int have_highpc; /* Whether a high PC value was found. */ + int highpc_is_relative; /* Whether highpc is relative to lowpc. */ + int highpc_is_addr_index; /* Whether highpc is in .debug_addr. */ + uint64_t ranges; /* Offset in ranges section. */ + int have_ranges; /* Whether ranges is valid. */ + int ranges_is_index; /* Whether ranges is DW_FORM_rnglistx. */ +}; + +/* Update PCRANGE from an attribute value. */ + +static void +update_pcrange (const struct attr* attr, const struct attr_val* val, + struct pcrange *pcrange) +{ + switch (attr->name) + { + case DW_AT_low_pc: + if (val->encoding == ATTR_VAL_ADDRESS) + { + pcrange->lowpc = val->u.uint; + pcrange->have_lowpc = 1; + } + else if (val->encoding == ATTR_VAL_ADDRESS_INDEX) + { + pcrange->lowpc = val->u.uint; + pcrange->have_lowpc = 1; + pcrange->lowpc_is_addr_index = 1; + } + break; + + case DW_AT_high_pc: + if (val->encoding == ATTR_VAL_ADDRESS) + { + pcrange->highpc = val->u.uint; + pcrange->have_highpc = 1; + } + else if (val->encoding == ATTR_VAL_UINT) + { + pcrange->highpc = val->u.uint; + pcrange->have_highpc = 1; + pcrange->highpc_is_relative = 1; + } + else if (val->encoding == ATTR_VAL_ADDRESS_INDEX) + { + pcrange->highpc = val->u.uint; + pcrange->have_highpc = 1; + pcrange->highpc_is_addr_index = 1; + } + break; + + case DW_AT_ranges: + if (val->encoding == ATTR_VAL_UINT + || val->encoding == ATTR_VAL_REF_SECTION) + { + pcrange->ranges = val->u.uint; + pcrange->have_ranges = 1; + } + else if (val->encoding == ATTR_VAL_RNGLISTS_INDEX) + { + pcrange->ranges = val->u.uint; + pcrange->have_ranges = 1; + pcrange->ranges_is_index = 1; + } + break; + + default: + break; + } +} + +/* Call ADD_RANGE for a low/high PC pair. Returns 1 on success, 0 on + error. */ + +static int +add_low_high_range (struct backtrace_state *state, + const struct dwarf_sections *dwarf_sections, + uintptr_t base_address, int is_bigendian, + struct unit *u, const struct pcrange *pcrange, + int (*add_range) (struct backtrace_state *state, + void *rdata, uint64_t lowpc, + uint64_t highpc, + backtrace_error_callback error_callback, + void *data, void *vec), + void *rdata, + backtrace_error_callback error_callback, void *data, + void *vec) +{ + uint64_t lowpc; + uint64_t highpc; + + lowpc = pcrange->lowpc; + if (pcrange->lowpc_is_addr_index) + { + if (!resolve_addr_index (dwarf_sections, u->addr_base, u->addrsize, + is_bigendian, lowpc, error_callback, data, + &lowpc)) + return 0; + } + + highpc = pcrange->highpc; + if (pcrange->highpc_is_addr_index) + { + if (!resolve_addr_index (dwarf_sections, u->addr_base, u->addrsize, + is_bigendian, highpc, error_callback, data, + &highpc)) + return 0; + } + if (pcrange->highpc_is_relative) + highpc += lowpc; + + /* Add in the base address of the module when recording PC values, + so that we can look up the PC directly. */ + lowpc += base_address; + highpc += base_address; + + return add_range (state, rdata, lowpc, highpc, error_callback, data, vec); +} + +/* Call ADD_RANGE for each range read from .debug_ranges, as used in + DWARF versions 2 through 4. */ + +static int +add_ranges_from_ranges ( + struct backtrace_state *state, + const struct dwarf_sections *dwarf_sections, + uintptr_t base_address, int is_bigendian, + struct unit *u, uint64_t base, + const struct pcrange *pcrange, + int (*add_range) (struct backtrace_state *state, void *rdata, + uint64_t lowpc, uint64_t highpc, + backtrace_error_callback error_callback, void *data, + void *vec), + void *rdata, + backtrace_error_callback error_callback, void *data, + void *vec) +{ + struct dwarf_buf ranges_buf; + + if (pcrange->ranges >= dwarf_sections->size[DEBUG_RANGES]) + { + error_callback (data, "ranges offset out of range", 0); + return 0; + } + + ranges_buf.name = ".debug_ranges"; + ranges_buf.start = dwarf_sections->data[DEBUG_RANGES]; + ranges_buf.buf = dwarf_sections->data[DEBUG_RANGES] + pcrange->ranges; + ranges_buf.left = dwarf_sections->size[DEBUG_RANGES] - pcrange->ranges; + ranges_buf.is_bigendian = is_bigendian; + ranges_buf.error_callback = error_callback; + ranges_buf.data = data; + ranges_buf.reported_underflow = 0; + + while (1) + { + uint64_t low; + uint64_t high; + + if (ranges_buf.reported_underflow) + return 0; + + low = read_address (&ranges_buf, u->addrsize); + high = read_address (&ranges_buf, u->addrsize); + + if (low == 0 && high == 0) + break; + + if (is_highest_address (low, u->addrsize)) + base = high; + else + { + if (!add_range (state, rdata, + low + base + base_address, + high + base + base_address, + error_callback, data, vec)) + return 0; + } + } + + if (ranges_buf.reported_underflow) + return 0; + + return 1; +} + +/* Call ADD_RANGE for each range read from .debug_rnglists, as used in + DWARF version 5. */ + +static int +add_ranges_from_rnglists ( + struct backtrace_state *state, + const struct dwarf_sections *dwarf_sections, + uintptr_t base_address, int is_bigendian, + struct unit *u, uint64_t base, + const struct pcrange *pcrange, + int (*add_range) (struct backtrace_state *state, void *rdata, + uint64_t lowpc, uint64_t highpc, + backtrace_error_callback error_callback, void *data, + void *vec), + void *rdata, + backtrace_error_callback error_callback, void *data, + void *vec) +{ + uint64_t offset; + struct dwarf_buf rnglists_buf; + + if (!pcrange->ranges_is_index) + offset = pcrange->ranges; + else + offset = u->rnglists_base + pcrange->ranges * (u->is_dwarf64 ? 8 : 4); + if (offset >= dwarf_sections->size[DEBUG_RNGLISTS]) + { + error_callback (data, "rnglists offset out of range", 0); + return 0; + } + + rnglists_buf.name = ".debug_rnglists"; + rnglists_buf.start = dwarf_sections->data[DEBUG_RNGLISTS]; + rnglists_buf.buf = dwarf_sections->data[DEBUG_RNGLISTS] + offset; + rnglists_buf.left = dwarf_sections->size[DEBUG_RNGLISTS] - offset; + rnglists_buf.is_bigendian = is_bigendian; + rnglists_buf.error_callback = error_callback; + rnglists_buf.data = data; + rnglists_buf.reported_underflow = 0; + + if (pcrange->ranges_is_index) + { + offset = read_offset (&rnglists_buf, u->is_dwarf64); + offset += u->rnglists_base; + if (offset >= dwarf_sections->size[DEBUG_RNGLISTS]) + { + error_callback (data, "rnglists index offset out of range", 0); + return 0; + } + rnglists_buf.buf = dwarf_sections->data[DEBUG_RNGLISTS] + offset; + rnglists_buf.left = dwarf_sections->size[DEBUG_RNGLISTS] - offset; + } + + while (1) + { + unsigned char rle; + + rle = read_byte (&rnglists_buf); + if (rle == DW_RLE_end_of_list) + break; + switch (rle) + { + case DW_RLE_base_addressx: + { + uint64_t index; + + index = read_uleb128 (&rnglists_buf); + if (!resolve_addr_index (dwarf_sections, u->addr_base, + u->addrsize, is_bigendian, index, + error_callback, data, &base)) + return 0; + } + break; + + case DW_RLE_startx_endx: + { + uint64_t index; + uint64_t low; + uint64_t high; + + index = read_uleb128 (&rnglists_buf); + if (!resolve_addr_index (dwarf_sections, u->addr_base, + u->addrsize, is_bigendian, index, + error_callback, data, &low)) + return 0; + index = read_uleb128 (&rnglists_buf); + if (!resolve_addr_index (dwarf_sections, u->addr_base, + u->addrsize, is_bigendian, index, + error_callback, data, &high)) + return 0; + if (!add_range (state, rdata, low + base_address, + high + base_address, error_callback, data, + vec)) + return 0; + } + break; + + case DW_RLE_startx_length: + { + uint64_t index; + uint64_t low; + uint64_t length; + + index = read_uleb128 (&rnglists_buf); + if (!resolve_addr_index (dwarf_sections, u->addr_base, + u->addrsize, is_bigendian, index, + error_callback, data, &low)) + return 0; + length = read_uleb128 (&rnglists_buf); + low += base_address; + if (!add_range (state, rdata, low, low + length, + error_callback, data, vec)) + return 0; + } + break; + + case DW_RLE_offset_pair: + { + uint64_t low; + uint64_t high; + + low = read_uleb128 (&rnglists_buf); + high = read_uleb128 (&rnglists_buf); + if (!add_range (state, rdata, low + base + base_address, + high + base + base_address, + error_callback, data, vec)) + return 0; + } + break; + + case DW_RLE_base_address: + base = read_address (&rnglists_buf, u->addrsize); + break; + + case DW_RLE_start_end: + { + uint64_t low; + uint64_t high; + + low = read_address (&rnglists_buf, u->addrsize); + high = read_address (&rnglists_buf, u->addrsize); + if (!add_range (state, rdata, low + base_address, + high + base_address, error_callback, data, + vec)) + return 0; + } + break; + + case DW_RLE_start_length: + { + uint64_t low; + uint64_t length; + + low = read_address (&rnglists_buf, u->addrsize); + length = read_uleb128 (&rnglists_buf); + low += base_address; + if (!add_range (state, rdata, low, low + length, + error_callback, data, vec)) + return 0; + } + break; + + default: + dwarf_buf_error (&rnglists_buf, "unrecognized DW_RLE value", -1); + return 0; + } + } + + if (rnglists_buf.reported_underflow) + return 0; + + return 1; +} + +/* Call ADD_RANGE for each lowpc/highpc pair in PCRANGE. RDATA is + passed to ADD_RANGE, and is either a struct unit * or a struct + function *. VEC is the vector we are adding ranges to, and is + either a struct unit_addrs_vector * or a struct function_vector *. + Returns 1 on success, 0 on error. */ + +static int +add_ranges (struct backtrace_state *state, + const struct dwarf_sections *dwarf_sections, + uintptr_t base_address, int is_bigendian, + struct unit *u, uint64_t base, const struct pcrange *pcrange, + int (*add_range) (struct backtrace_state *state, void *rdata, + uint64_t lowpc, uint64_t highpc, + backtrace_error_callback error_callback, + void *data, void *vec), + void *rdata, + backtrace_error_callback error_callback, void *data, + void *vec) +{ + if (pcrange->have_lowpc && pcrange->have_highpc) + return add_low_high_range (state, dwarf_sections, base_address, + is_bigendian, u, pcrange, add_range, rdata, + error_callback, data, vec); + + if (!pcrange->have_ranges) + { + /* Did not find any address ranges to add. */ + return 1; + } + + if (u->version < 5) + return add_ranges_from_ranges (state, dwarf_sections, base_address, + is_bigendian, u, base, pcrange, add_range, + rdata, error_callback, data, vec); + else + return add_ranges_from_rnglists (state, dwarf_sections, base_address, + is_bigendian, u, base, pcrange, add_range, + rdata, error_callback, data, vec); +} + +/* Find the address range covered by a compilation unit, reading from + UNIT_BUF and adding values to U. Returns 1 if all data could be + read, 0 if there is some error. */ + +static int +find_address_ranges (struct backtrace_state *state, uintptr_t base_address, + struct dwarf_buf *unit_buf, + const struct dwarf_sections *dwarf_sections, + int is_bigendian, struct dwarf_data *altlink, + backtrace_error_callback error_callback, void *data, + struct unit *u, struct unit_addrs_vector *addrs, + enum dwarf_tag *unit_tag) +{ + while (unit_buf->left > 0) + { + uint64_t code; + const struct abbrev *abbrev; + struct pcrange pcrange; + struct attr_val name_val; + int have_name_val; + struct attr_val comp_dir_val; + int have_comp_dir_val; + size_t i; + + code = read_uleb128 (unit_buf); + if (code == 0) + return 1; + + abbrev = lookup_abbrev (&u->abbrevs, code, error_callback, data); + if (abbrev == NULL) + return 0; + + if (unit_tag != NULL) + *unit_tag = abbrev->tag; + + memset (&pcrange, 0, sizeof pcrange); + memset (&name_val, 0, sizeof name_val); + have_name_val = 0; + memset (&comp_dir_val, 0, sizeof comp_dir_val); + have_comp_dir_val = 0; + for (i = 0; i < abbrev->num_attrs; ++i) + { + struct attr_val val; + + if (!read_attribute (abbrev->attrs[i].form, abbrev->attrs[i].val, + unit_buf, u->is_dwarf64, u->version, + u->addrsize, dwarf_sections, altlink, &val)) + return 0; + + switch (abbrev->attrs[i].name) + { + case DW_AT_low_pc: case DW_AT_high_pc: case DW_AT_ranges: + update_pcrange (&abbrev->attrs[i], &val, &pcrange); + break; + + case DW_AT_stmt_list: + if (abbrev->tag == DW_TAG_compile_unit + && (val.encoding == ATTR_VAL_UINT + || val.encoding == ATTR_VAL_REF_SECTION)) + u->lineoff = val.u.uint; + break; + + case DW_AT_name: + if (abbrev->tag == DW_TAG_compile_unit) + { + name_val = val; + have_name_val = 1; + } + break; + + case DW_AT_comp_dir: + if (abbrev->tag == DW_TAG_compile_unit) + { + comp_dir_val = val; + have_comp_dir_val = 1; + } + break; + + case DW_AT_str_offsets_base: + if (abbrev->tag == DW_TAG_compile_unit + && val.encoding == ATTR_VAL_REF_SECTION) + u->str_offsets_base = val.u.uint; + break; + + case DW_AT_addr_base: + if (abbrev->tag == DW_TAG_compile_unit + && val.encoding == ATTR_VAL_REF_SECTION) + u->addr_base = val.u.uint; + break; + + case DW_AT_rnglists_base: + if (abbrev->tag == DW_TAG_compile_unit + && val.encoding == ATTR_VAL_REF_SECTION) + u->rnglists_base = val.u.uint; + break; + + default: + break; + } + } + + // Resolve strings after we're sure that we have seen + // DW_AT_str_offsets_base. + if (have_name_val) + { + if (!resolve_string (dwarf_sections, u->is_dwarf64, is_bigendian, + u->str_offsets_base, &name_val, + error_callback, data, &u->filename)) + return 0; + } + if (have_comp_dir_val) + { + if (!resolve_string (dwarf_sections, u->is_dwarf64, is_bigendian, + u->str_offsets_base, &comp_dir_val, + error_callback, data, &u->comp_dir)) + return 0; + } + + if (abbrev->tag == DW_TAG_compile_unit + || abbrev->tag == DW_TAG_subprogram) + { + if (!add_ranges (state, dwarf_sections, base_address, + is_bigendian, u, pcrange.lowpc, &pcrange, + add_unit_addr, (void *) u, error_callback, data, + (void *) addrs)) + return 0; + + /* If we found the PC range in the DW_TAG_compile_unit, we + can stop now. */ + if (abbrev->tag == DW_TAG_compile_unit + && (pcrange.have_ranges + || (pcrange.have_lowpc && pcrange.have_highpc))) + return 1; + } + + if (abbrev->has_children) + { + if (!find_address_ranges (state, base_address, unit_buf, + dwarf_sections, is_bigendian, altlink, + error_callback, data, u, addrs, NULL)) + return 0; + } + } + + return 1; +} + +/* Build a mapping from address ranges to the compilation units where + the line number information for that range can be found. Returns 1 + on success, 0 on failure. */ + +static int +build_address_map (struct backtrace_state *state, uintptr_t base_address, + const struct dwarf_sections *dwarf_sections, + int is_bigendian, struct dwarf_data *altlink, + backtrace_error_callback error_callback, void *data, + struct unit_addrs_vector *addrs, + struct unit_vector *unit_vec) +{ + struct dwarf_buf info; + struct backtrace_vector units; + size_t units_count; + size_t i; + struct unit **pu; + size_t unit_offset = 0; + struct unit_addrs *pa; + + memset (&addrs->vec, 0, sizeof addrs->vec); + memset (&unit_vec->vec, 0, sizeof unit_vec->vec); + addrs->count = 0; + unit_vec->count = 0; + + /* Read through the .debug_info section. FIXME: Should we use the + .debug_aranges section? gdb and addr2line don't use it, but I'm + not sure why. */ + + info.name = ".debug_info"; + info.start = dwarf_sections->data[DEBUG_INFO]; + info.buf = info.start; + info.left = dwarf_sections->size[DEBUG_INFO]; + info.is_bigendian = is_bigendian; + info.error_callback = error_callback; + info.data = data; + info.reported_underflow = 0; + + memset (&units, 0, sizeof units); + units_count = 0; + + while (info.left > 0) + { + const unsigned char *unit_data_start; + uint64_t len; + int is_dwarf64; + struct dwarf_buf unit_buf; + int version; + int unit_type; + uint64_t abbrev_offset; + int addrsize; + struct unit *u; + enum dwarf_tag unit_tag; + + if (info.reported_underflow) + goto fail; + + unit_data_start = info.buf; + + len = read_initial_length (&info, &is_dwarf64); + unit_buf = info; + unit_buf.left = len; + + if (!advance (&info, len)) + goto fail; + + version = read_uint16 (&unit_buf); + if (version < 2 || version > 5) + { + dwarf_buf_error (&unit_buf, "unrecognized DWARF version", -1); + goto fail; + } + + if (version < 5) + unit_type = 0; + else + { + unit_type = read_byte (&unit_buf); + if (unit_type == DW_UT_type || unit_type == DW_UT_split_type) + { + /* This unit doesn't have anything we need. */ + continue; + } + } + + pu = ((struct unit **) + backtrace_vector_grow (state, sizeof (struct unit *), + error_callback, data, &units)); + if (pu == NULL) + goto fail; + + u = ((struct unit *) + backtrace_alloc (state, sizeof *u, error_callback, data)); + if (u == NULL) + goto fail; + + *pu = u; + ++units_count; + + if (version < 5) + addrsize = 0; /* Set below. */ + else + addrsize = read_byte (&unit_buf); + + memset (&u->abbrevs, 0, sizeof u->abbrevs); + abbrev_offset = read_offset (&unit_buf, is_dwarf64); + if (!read_abbrevs (state, abbrev_offset, + dwarf_sections->data[DEBUG_ABBREV], + dwarf_sections->size[DEBUG_ABBREV], + is_bigendian, error_callback, data, &u->abbrevs)) + goto fail; + + if (version < 5) + addrsize = read_byte (&unit_buf); + + switch (unit_type) + { + case 0: + break; + case DW_UT_compile: case DW_UT_partial: + break; + case DW_UT_skeleton: case DW_UT_split_compile: + read_uint64 (&unit_buf); /* dwo_id */ + break; + default: + break; + } + + u->low_offset = unit_offset; + unit_offset += len + (is_dwarf64 ? 12 : 4); + u->high_offset = unit_offset; + u->unit_data = unit_buf.buf; + u->unit_data_len = unit_buf.left; + u->unit_data_offset = unit_buf.buf - unit_data_start; + u->version = version; + u->is_dwarf64 = is_dwarf64; + u->addrsize = addrsize; + u->filename = NULL; + u->comp_dir = NULL; + u->abs_filename = NULL; + u->lineoff = 0; + + /* The actual line number mappings will be read as needed. */ + u->lines = NULL; + u->lines_count = 0; + u->function_addrs = NULL; + u->function_addrs_count = 0; + + if (!find_address_ranges (state, base_address, &unit_buf, dwarf_sections, + is_bigendian, altlink, error_callback, data, + u, addrs, &unit_tag)) + goto fail; + + if (unit_buf.reported_underflow) + goto fail; + } + if (info.reported_underflow) + goto fail; + + /* Add a trailing addrs entry, but don't include it in addrs->count. */ + pa = ((struct unit_addrs *) + backtrace_vector_grow (state, sizeof (struct unit_addrs), + error_callback, data, &addrs->vec)); + if (pa == NULL) + goto fail; + pa->low = 0; + --pa->low; + pa->high = pa->low; + pa->u = NULL; + + unit_vec->vec = units; + unit_vec->count = units_count; + return 1; + + fail: + if (units_count > 0) + { + pu = (struct unit **) units.base; + for (i = 0; i < units_count; i++) + { + free_abbrevs (state, &pu[i]->abbrevs, error_callback, data); + backtrace_free (state, pu[i], sizeof **pu, error_callback, data); + } + backtrace_vector_free (state, &units, error_callback, data); + } + if (addrs->count > 0) + { + backtrace_vector_free (state, &addrs->vec, error_callback, data); + addrs->count = 0; + } + return 0; +} + +/* Add a new mapping to the vector of line mappings that we are + building. Returns 1 on success, 0 on failure. */ + +static int +add_line (struct backtrace_state *state, struct dwarf_data *ddata, + uintptr_t pc, const char *filename, int lineno, + backtrace_error_callback error_callback, void *data, + struct line_vector *vec) +{ + struct line *ln; + + /* If we are adding the same mapping, ignore it. This can happen + when using discriminators. */ + if (vec->count > 0) + { + ln = (struct line *) vec->vec.base + (vec->count - 1); + if (pc == ln->pc && filename == ln->filename && lineno == ln->lineno) + return 1; + } + + ln = ((struct line *) + backtrace_vector_grow (state, sizeof (struct line), error_callback, + data, &vec->vec)); + if (ln == NULL) + return 0; + + /* Add in the base address here, so that we can look up the PC + directly. */ + ln->pc = pc + ddata->base_address; + + ln->filename = filename; + ln->lineno = lineno; + ln->idx = vec->count; + + ++vec->count; + + return 1; +} + +/* Free the line header information. */ + +static void +free_line_header (struct backtrace_state *state, struct line_header *hdr, + backtrace_error_callback error_callback, void *data) +{ + if (hdr->dirs_count != 0) + backtrace_free (state, hdr->dirs, hdr->dirs_count * sizeof (const char *), + error_callback, data); + backtrace_free (state, hdr->filenames, + hdr->filenames_count * sizeof (char *), + error_callback, data); +} + +/* Read the directories and file names for a line header for version + 2, setting fields in HDR. Return 1 on success, 0 on failure. */ + +static int +read_v2_paths (struct backtrace_state *state, struct unit *u, + struct dwarf_buf *hdr_buf, struct line_header *hdr) +{ + const unsigned char *p; + const unsigned char *pend; + size_t i; + + /* Count the number of directory entries. */ + hdr->dirs_count = 0; + p = hdr_buf->buf; + pend = p + hdr_buf->left; + while (p < pend && *p != '\0') + { + p += strnlen((const char *) p, pend - p) + 1; + ++hdr->dirs_count; + } + + /* The index of the first entry in the list of directories is 1. Index 0 is + used for the current directory of the compilation. To simplify index + handling, we set entry 0 to the compilation unit directory. */ + ++hdr->dirs_count; + hdr->dirs = ((const char **) + backtrace_alloc (state, + hdr->dirs_count * sizeof (const char *), + hdr_buf->error_callback, + hdr_buf->data)); + if (hdr->dirs == NULL) + return 0; + + hdr->dirs[0] = u->comp_dir; + i = 1; + while (*hdr_buf->buf != '\0') + { + if (hdr_buf->reported_underflow) + return 0; + + hdr->dirs[i] = read_string (hdr_buf); + if (hdr->dirs[i] == NULL) + return 0; + ++i; + } + if (!advance (hdr_buf, 1)) + return 0; + + /* Count the number of file entries. */ + hdr->filenames_count = 0; + p = hdr_buf->buf; + pend = p + hdr_buf->left; + while (p < pend && *p != '\0') + { + p += strnlen ((const char *) p, pend - p) + 1; + p += leb128_len (p); + p += leb128_len (p); + p += leb128_len (p); + ++hdr->filenames_count; + } + + /* The index of the first entry in the list of file names is 1. Index 0 is + used for the DW_AT_name of the compilation unit. To simplify index + handling, we set entry 0 to the compilation unit file name. */ + ++hdr->filenames_count; + hdr->filenames = ((const char **) + backtrace_alloc (state, + hdr->filenames_count * sizeof (char *), + hdr_buf->error_callback, + hdr_buf->data)); + if (hdr->filenames == NULL) + return 0; + hdr->filenames[0] = u->filename; + i = 1; + while (*hdr_buf->buf != '\0') + { + const char *filename; + uint64_t dir_index; + + if (hdr_buf->reported_underflow) + return 0; + + filename = read_string (hdr_buf); + if (filename == NULL) + return 0; + dir_index = read_uleb128 (hdr_buf); + if (IS_ABSOLUTE_PATH (filename) + || (dir_index < hdr->dirs_count && hdr->dirs[dir_index] == NULL)) + hdr->filenames[i] = filename; + else + { + const char *dir; + size_t dir_len; + size_t filename_len; + char *s; + + if (dir_index < hdr->dirs_count) + dir = hdr->dirs[dir_index]; + else + { + dwarf_buf_error (hdr_buf, + ("invalid directory index in " + "line number program header"), + 0); + return 0; + } + dir_len = strlen (dir); + filename_len = strlen (filename); + s = ((char *) backtrace_alloc (state, dir_len + filename_len + 2, + hdr_buf->error_callback, + hdr_buf->data)); + if (s == NULL) + return 0; + memcpy (s, dir, dir_len); + /* FIXME: If we are on a DOS-based file system, and the + directory or the file name use backslashes, then we + should use a backslash here. */ + s[dir_len] = '/'; + memcpy (s + dir_len + 1, filename, filename_len + 1); + hdr->filenames[i] = s; + } + + /* Ignore the modification time and size. */ + read_uleb128 (hdr_buf); + read_uleb128 (hdr_buf); + + ++i; + } + + return 1; +} + +/* Read a single version 5 LNCT entry for a directory or file name in a + line header. Sets *STRING to the resulting name, ignoring other + data. Return 1 on success, 0 on failure. */ + +static int +read_lnct (struct backtrace_state *state, struct dwarf_data *ddata, + struct unit *u, struct dwarf_buf *hdr_buf, + const struct line_header *hdr, size_t formats_count, + const struct line_header_format *formats, const char **string) +{ + size_t i; + const char *dir; + const char *path; + + dir = NULL; + path = NULL; + for (i = 0; i < formats_count; i++) + { + struct attr_val val; + + if (!read_attribute (formats[i].form, 0, hdr_buf, u->is_dwarf64, + u->version, hdr->addrsize, &ddata->dwarf_sections, + ddata->altlink, &val)) + return 0; + switch (formats[i].lnct) + { + case DW_LNCT_path: + if (!resolve_string (&ddata->dwarf_sections, u->is_dwarf64, + ddata->is_bigendian, u->str_offsets_base, + &val, hdr_buf->error_callback, hdr_buf->data, + &path)) + return 0; + break; + case DW_LNCT_directory_index: + if (val.encoding == ATTR_VAL_UINT) + { + if (val.u.uint >= hdr->dirs_count) + { + dwarf_buf_error (hdr_buf, + ("invalid directory index in " + "line number program header"), + 0); + return 0; + } + dir = hdr->dirs[val.u.uint]; + } + break; + default: + /* We don't care about timestamps or sizes or hashes. */ + break; + } + } + + if (path == NULL) + { + dwarf_buf_error (hdr_buf, + "missing file name in line number program header", + 0); + return 0; + } + + if (dir == NULL) + *string = path; + else + { + size_t dir_len; + size_t path_len; + char *s; + + dir_len = strlen (dir); + path_len = strlen (path); + s = (char *) backtrace_alloc (state, dir_len + path_len + 2, + hdr_buf->error_callback, hdr_buf->data); + if (s == NULL) + return 0; + memcpy (s, dir, dir_len); + /* FIXME: If we are on a DOS-based file system, and the + directory or the path name use backslashes, then we should + use a backslash here. */ + s[dir_len] = '/'; + memcpy (s + dir_len + 1, path, path_len + 1); + *string = s; + } + + return 1; +} + +/* Read a set of DWARF 5 line header format entries, setting *PCOUNT + and *PPATHS. Return 1 on success, 0 on failure. */ + +static int +read_line_header_format_entries (struct backtrace_state *state, + struct dwarf_data *ddata, + struct unit *u, + struct dwarf_buf *hdr_buf, + struct line_header *hdr, + size_t *pcount, + const char ***ppaths) +{ + size_t formats_count; + struct line_header_format *formats; + size_t paths_count; + const char **paths; + size_t i; + int ret; + + formats_count = read_byte (hdr_buf); + if (formats_count == 0) + formats = NULL; + else + { + formats = ((struct line_header_format *) + backtrace_alloc (state, + (formats_count + * sizeof (struct line_header_format)), + hdr_buf->error_callback, + hdr_buf->data)); + if (formats == NULL) + return 0; + + for (i = 0; i < formats_count; i++) + { + formats[i].lnct = (int) read_uleb128(hdr_buf); + formats[i].form = (enum dwarf_form) read_uleb128 (hdr_buf); + } + } + + paths_count = read_uleb128 (hdr_buf); + if (paths_count == 0) + { + *pcount = 0; + *ppaths = NULL; + ret = 1; + goto exit; + } + + paths = ((const char **) + backtrace_alloc (state, paths_count * sizeof (const char *), + hdr_buf->error_callback, hdr_buf->data)); + if (paths == NULL) + { + ret = 0; + goto exit; + } + for (i = 0; i < paths_count; i++) + { + if (!read_lnct (state, ddata, u, hdr_buf, hdr, formats_count, + formats, &paths[i])) + { + backtrace_free (state, paths, + paths_count * sizeof (const char *), + hdr_buf->error_callback, hdr_buf->data); + ret = 0; + goto exit; + } + } + + *pcount = paths_count; + *ppaths = paths; + + ret = 1; + + exit: + if (formats != NULL) + backtrace_free (state, formats, + formats_count * sizeof (struct line_header_format), + hdr_buf->error_callback, hdr_buf->data); + + return ret; +} + +/* Read the line header. Return 1 on success, 0 on failure. */ + +static int +read_line_header (struct backtrace_state *state, struct dwarf_data *ddata, + struct unit *u, int is_dwarf64, struct dwarf_buf *line_buf, + struct line_header *hdr) +{ + uint64_t hdrlen; + struct dwarf_buf hdr_buf; + + hdr->version = read_uint16 (line_buf); + if (hdr->version < 2 || hdr->version > 5) + { + dwarf_buf_error (line_buf, "unsupported line number version", -1); + return 0; + } + + if (hdr->version < 5) + hdr->addrsize = u->addrsize; + else + { + hdr->addrsize = read_byte (line_buf); + /* We could support a non-zero segment_selector_size but I doubt + we'll ever see it. */ + if (read_byte (line_buf) != 0) + { + dwarf_buf_error (line_buf, + "non-zero segment_selector_size not supported", + -1); + return 0; + } + } + + hdrlen = read_offset (line_buf, is_dwarf64); + + hdr_buf = *line_buf; + hdr_buf.left = hdrlen; + + if (!advance (line_buf, hdrlen)) + return 0; + + hdr->min_insn_len = read_byte (&hdr_buf); + if (hdr->version < 4) + hdr->max_ops_per_insn = 1; + else + hdr->max_ops_per_insn = read_byte (&hdr_buf); + + /* We don't care about default_is_stmt. */ + read_byte (&hdr_buf); + + hdr->line_base = read_sbyte (&hdr_buf); + hdr->line_range = read_byte (&hdr_buf); + + hdr->opcode_base = read_byte (&hdr_buf); + hdr->opcode_lengths = hdr_buf.buf; + if (!advance (&hdr_buf, hdr->opcode_base - 1)) + return 0; + + if (hdr->version < 5) + { + if (!read_v2_paths (state, u, &hdr_buf, hdr)) + return 0; + } + else + { + if (!read_line_header_format_entries (state, ddata, u, &hdr_buf, hdr, + &hdr->dirs_count, + &hdr->dirs)) + return 0; + if (!read_line_header_format_entries (state, ddata, u, &hdr_buf, hdr, + &hdr->filenames_count, + &hdr->filenames)) + return 0; + } + + if (hdr_buf.reported_underflow) + return 0; + + return 1; +} + +/* Read the line program, adding line mappings to VEC. Return 1 on + success, 0 on failure. */ + +static int +read_line_program (struct backtrace_state *state, struct dwarf_data *ddata, + const struct line_header *hdr, struct dwarf_buf *line_buf, + struct line_vector *vec) +{ + uint64_t address; + unsigned int op_index; + const char *reset_filename; + const char *filename; + int lineno; + + address = 0; + op_index = 0; + if (hdr->filenames_count > 1) + reset_filename = hdr->filenames[1]; + else + reset_filename = ""; + filename = reset_filename; + lineno = 1; + while (line_buf->left > 0) + { + unsigned int op; + + op = read_byte (line_buf); + if (op >= hdr->opcode_base) + { + unsigned int advance; + + /* Special opcode. */ + op -= hdr->opcode_base; + advance = op / hdr->line_range; + address += (hdr->min_insn_len * (op_index + advance) + / hdr->max_ops_per_insn); + op_index = (op_index + advance) % hdr->max_ops_per_insn; + lineno += hdr->line_base + (int) (op % hdr->line_range); + add_line (state, ddata, address, filename, lineno, + line_buf->error_callback, line_buf->data, vec); + } + else if (op == DW_LNS_extended_op) + { + uint64_t len; + + len = read_uleb128 (line_buf); + op = read_byte (line_buf); + switch (op) + { + case DW_LNE_end_sequence: + /* FIXME: Should we mark the high PC here? It seems + that we already have that information from the + compilation unit. */ + address = 0; + op_index = 0; + filename = reset_filename; + lineno = 1; + break; + case DW_LNE_set_address: + address = read_address (line_buf, hdr->addrsize); + break; + case DW_LNE_define_file: + { + const char *f; + unsigned int dir_index; + + f = read_string (line_buf); + if (f == NULL) + return 0; + dir_index = read_uleb128 (line_buf); + /* Ignore that time and length. */ + read_uleb128 (line_buf); + read_uleb128 (line_buf); + if (IS_ABSOLUTE_PATH (f)) + filename = f; + else + { + const char *dir; + size_t dir_len; + size_t f_len; + char *p; + + if (dir_index < hdr->dirs_count) + dir = hdr->dirs[dir_index]; + else + { + dwarf_buf_error (line_buf, + ("invalid directory index " + "in line number program"), + 0); + return 0; + } + dir_len = strlen (dir); + f_len = strlen (f); + p = ((char *) + backtrace_alloc (state, dir_len + f_len + 2, + line_buf->error_callback, + line_buf->data)); + if (p == NULL) + return 0; + memcpy (p, dir, dir_len); + /* FIXME: If we are on a DOS-based file system, + and the directory or the file name use + backslashes, then we should use a backslash + here. */ + p[dir_len] = '/'; + memcpy (p + dir_len + 1, f, f_len + 1); + filename = p; + } + } + break; + case DW_LNE_set_discriminator: + /* We don't care about discriminators. */ + read_uleb128 (line_buf); + break; + default: + if (!advance (line_buf, len - 1)) + return 0; + break; + } + } + else + { + switch (op) + { + case DW_LNS_copy: + add_line (state, ddata, address, filename, lineno, + line_buf->error_callback, line_buf->data, vec); + break; + case DW_LNS_advance_pc: + { + uint64_t advance; + + advance = read_uleb128 (line_buf); + address += (hdr->min_insn_len * (op_index + advance) + / hdr->max_ops_per_insn); + op_index = (op_index + advance) % hdr->max_ops_per_insn; + } + break; + case DW_LNS_advance_line: + lineno += (int) read_sleb128 (line_buf); + break; + case DW_LNS_set_file: + { + uint64_t fileno; + + fileno = read_uleb128 (line_buf); + if (fileno >= hdr->filenames_count) + { + dwarf_buf_error (line_buf, + ("invalid file number in " + "line number program"), + 0); + return 0; + } + filename = hdr->filenames[fileno]; + } + break; + case DW_LNS_set_column: + read_uleb128 (line_buf); + break; + case DW_LNS_negate_stmt: + break; + case DW_LNS_set_basic_block: + break; + case DW_LNS_const_add_pc: + { + unsigned int advance; + + op = 255 - hdr->opcode_base; + advance = op / hdr->line_range; + address += (hdr->min_insn_len * (op_index + advance) + / hdr->max_ops_per_insn); + op_index = (op_index + advance) % hdr->max_ops_per_insn; + } + break; + case DW_LNS_fixed_advance_pc: + address += read_uint16 (line_buf); + op_index = 0; + break; + case DW_LNS_set_prologue_end: + break; + case DW_LNS_set_epilogue_begin: + break; + case DW_LNS_set_isa: + read_uleb128 (line_buf); + break; + default: + { + unsigned int i; + + for (i = hdr->opcode_lengths[op - 1]; i > 0; --i) + read_uleb128 (line_buf); + } + break; + } + } + } + + return 1; +} + +/* Read the line number information for a compilation unit. Returns 1 + on success, 0 on failure. */ + +static int +read_line_info (struct backtrace_state *state, struct dwarf_data *ddata, + backtrace_error_callback error_callback, void *data, + struct unit *u, struct line_header *hdr, struct line **lines, + size_t *lines_count) +{ + struct line_vector vec; + struct dwarf_buf line_buf; + uint64_t len; + int is_dwarf64; + struct line *ln; + + memset (&vec.vec, 0, sizeof vec.vec); + vec.count = 0; + + memset (hdr, 0, sizeof *hdr); + + if (u->lineoff != (off_t) (size_t) u->lineoff + || (size_t) u->lineoff >= ddata->dwarf_sections.size[DEBUG_LINE]) + { + error_callback (data, "unit line offset out of range", 0); + goto fail; + } + + line_buf.name = ".debug_line"; + line_buf.start = ddata->dwarf_sections.data[DEBUG_LINE]; + line_buf.buf = ddata->dwarf_sections.data[DEBUG_LINE] + u->lineoff; + line_buf.left = ddata->dwarf_sections.size[DEBUG_LINE] - u->lineoff; + line_buf.is_bigendian = ddata->is_bigendian; + line_buf.error_callback = error_callback; + line_buf.data = data; + line_buf.reported_underflow = 0; + + len = read_initial_length (&line_buf, &is_dwarf64); + line_buf.left = len; + + if (!read_line_header (state, ddata, u, is_dwarf64, &line_buf, hdr)) + goto fail; + + if (!read_line_program (state, ddata, hdr, &line_buf, &vec)) + goto fail; + + if (line_buf.reported_underflow) + goto fail; + + if (vec.count == 0) + { + /* This is not a failure in the sense of a generating an error, + but it is a failure in that sense that we have no useful + information. */ + goto fail; + } + + /* Allocate one extra entry at the end. */ + ln = ((struct line *) + backtrace_vector_grow (state, sizeof (struct line), error_callback, + data, &vec.vec)); + if (ln == NULL) + goto fail; + ln->pc = (uintptr_t) -1; + ln->filename = NULL; + ln->lineno = 0; + ln->idx = 0; + + if (!backtrace_vector_release (state, &vec.vec, error_callback, data)) + goto fail; + + ln = (struct line *) vec.vec.base; + backtrace_qsort (ln, vec.count, sizeof (struct line), line_compare); + + *lines = ln; + *lines_count = vec.count; + + return 1; + + fail: + backtrace_vector_free (state, &vec.vec, error_callback, data); + free_line_header (state, hdr, error_callback, data); + *lines = (struct line *) (uintptr_t) -1; + *lines_count = 0; + return 0; +} + +static const char *read_referenced_name (struct dwarf_data *, struct unit *, + uint64_t, backtrace_error_callback, + void *); + +/* Read the name of a function from a DIE referenced by ATTR with VAL. */ + +static const char * +read_referenced_name_from_attr (struct dwarf_data *ddata, struct unit *u, + struct attr *attr, struct attr_val *val, + backtrace_error_callback error_callback, + void *data) +{ + switch (attr->name) + { + case DW_AT_abstract_origin: + case DW_AT_specification: + break; + default: + return NULL; + } + + if (attr->form == DW_FORM_ref_sig8) + return NULL; + + if (val->encoding == ATTR_VAL_REF_INFO) + { + struct unit *unit + = find_unit (ddata->units, ddata->units_count, + val->u.uint); + if (unit == NULL) + return NULL; + + uint64_t offset = val->u.uint - unit->low_offset; + return read_referenced_name (ddata, unit, offset, error_callback, data); + } + + if (val->encoding == ATTR_VAL_UINT + || val->encoding == ATTR_VAL_REF_UNIT) + return read_referenced_name (ddata, u, val->u.uint, error_callback, data); + + if (val->encoding == ATTR_VAL_REF_ALT_INFO) + { + struct unit *alt_unit + = find_unit (ddata->altlink->units, ddata->altlink->units_count, + val->u.uint); + if (alt_unit == NULL) + return NULL; + + uint64_t offset = val->u.uint - alt_unit->low_offset; + return read_referenced_name (ddata->altlink, alt_unit, offset, + error_callback, data); + } + + return NULL; +} + +/* Read the name of a function from a DIE referenced by a + DW_AT_abstract_origin or DW_AT_specification tag. OFFSET is within + the same compilation unit. */ + +static const char * +read_referenced_name (struct dwarf_data *ddata, struct unit *u, + uint64_t offset, backtrace_error_callback error_callback, + void *data) +{ + struct dwarf_buf unit_buf; + uint64_t code; + const struct abbrev *abbrev; + const char *ret; + size_t i; + + /* OFFSET is from the start of the data for this compilation unit. + U->unit_data is the data, but it starts U->unit_data_offset bytes + from the beginning. */ + + if (offset < u->unit_data_offset + || offset - u->unit_data_offset >= u->unit_data_len) + { + error_callback (data, + "abstract origin or specification out of range", + 0); + return NULL; + } + + offset -= u->unit_data_offset; + + unit_buf.name = ".debug_info"; + unit_buf.start = ddata->dwarf_sections.data[DEBUG_INFO]; + unit_buf.buf = u->unit_data + offset; + unit_buf.left = u->unit_data_len - offset; + unit_buf.is_bigendian = ddata->is_bigendian; + unit_buf.error_callback = error_callback; + unit_buf.data = data; + unit_buf.reported_underflow = 0; + + code = read_uleb128 (&unit_buf); + if (code == 0) + { + dwarf_buf_error (&unit_buf, + "invalid abstract origin or specification", + 0); + return NULL; + } + + abbrev = lookup_abbrev (&u->abbrevs, code, error_callback, data); + if (abbrev == NULL) + return NULL; + + ret = NULL; + for (i = 0; i < abbrev->num_attrs; ++i) + { + struct attr_val val; + + if (!read_attribute (abbrev->attrs[i].form, abbrev->attrs[i].val, + &unit_buf, u->is_dwarf64, u->version, u->addrsize, + &ddata->dwarf_sections, ddata->altlink, &val)) + return NULL; + + switch (abbrev->attrs[i].name) + { + case DW_AT_name: + /* Third name preference: don't override. A name we found in some + other way, will normally be more useful -- e.g., this name is + normally not mangled. */ + if (ret != NULL) + break; + if (!resolve_string (&ddata->dwarf_sections, u->is_dwarf64, + ddata->is_bigendian, u->str_offsets_base, + &val, error_callback, data, &ret)) + return NULL; + break; + + case DW_AT_linkage_name: + case DW_AT_MIPS_linkage_name: + /* First name preference: override all. */ + { + const char *s; + + s = NULL; + if (!resolve_string (&ddata->dwarf_sections, u->is_dwarf64, + ddata->is_bigendian, u->str_offsets_base, + &val, error_callback, data, &s)) + return NULL; + if (s != NULL) + return s; + } + break; + + case DW_AT_specification: + /* Second name preference: override DW_AT_name, don't override + DW_AT_linkage_name. */ + { + const char *name; + + name = read_referenced_name_from_attr (ddata, u, &abbrev->attrs[i], + &val, error_callback, data); + if (name != NULL) + ret = name; + } + break; + + default: + break; + } + } + + return ret; +} + +/* Add a range to a unit that maps to a function. This is called via + add_ranges. Returns 1 on success, 0 on error. */ + +static int +add_function_range (struct backtrace_state *state, void *rdata, + uint64_t lowpc, uint64_t highpc, + backtrace_error_callback error_callback, void *data, + void *pvec) +{ + struct function *function = (struct function *) rdata; + struct function_vector *vec = (struct function_vector *) pvec; + struct function_addrs *p; + + if (vec->count > 0) + { + p = (struct function_addrs *) vec->vec.base + (vec->count - 1); + if ((lowpc == p->high || lowpc == p->high + 1) + && function == p->function) + { + if (highpc > p->high) + p->high = highpc; + return 1; + } + } + + p = ((struct function_addrs *) + backtrace_vector_grow (state, sizeof (struct function_addrs), + error_callback, data, &vec->vec)); + if (p == NULL) + return 0; + + p->low = lowpc; + p->high = highpc; + p->function = function; + + ++vec->count; + + return 1; +} + +/* Read one entry plus all its children. Add function addresses to + VEC. Returns 1 on success, 0 on error. */ + +static int +read_function_entry (struct backtrace_state *state, struct dwarf_data *ddata, + struct unit *u, uint64_t base, struct dwarf_buf *unit_buf, + const struct line_header *lhdr, + backtrace_error_callback error_callback, void *data, + struct function_vector *vec_function, + struct function_vector *vec_inlined) +{ + while (unit_buf->left > 0) + { + uint64_t code; + const struct abbrev *abbrev; + int is_function; + struct function *function; + struct function_vector *vec; + size_t i; + struct pcrange pcrange; + int have_linkage_name; + + code = read_uleb128 (unit_buf); + if (code == 0) + return 1; + + abbrev = lookup_abbrev (&u->abbrevs, code, error_callback, data); + if (abbrev == NULL) + return 0; + + is_function = (abbrev->tag == DW_TAG_subprogram + || abbrev->tag == DW_TAG_entry_point + || abbrev->tag == DW_TAG_inlined_subroutine); + + if (abbrev->tag == DW_TAG_inlined_subroutine) + vec = vec_inlined; + else + vec = vec_function; + + function = NULL; + if (is_function) + { + function = ((struct function *) + backtrace_alloc (state, sizeof *function, + error_callback, data)); + if (function == NULL) + return 0; + memset (function, 0, sizeof *function); + } + + memset (&pcrange, 0, sizeof pcrange); + have_linkage_name = 0; + for (i = 0; i < abbrev->num_attrs; ++i) + { + struct attr_val val; + + if (!read_attribute (abbrev->attrs[i].form, abbrev->attrs[i].val, + unit_buf, u->is_dwarf64, u->version, + u->addrsize, &ddata->dwarf_sections, + ddata->altlink, &val)) + return 0; + + /* The compile unit sets the base address for any address + ranges in the function entries. */ + if (abbrev->tag == DW_TAG_compile_unit + && abbrev->attrs[i].name == DW_AT_low_pc) + { + if (val.encoding == ATTR_VAL_ADDRESS) + base = val.u.uint; + else if (val.encoding == ATTR_VAL_ADDRESS_INDEX) + { + if (!resolve_addr_index (&ddata->dwarf_sections, + u->addr_base, u->addrsize, + ddata->is_bigendian, val.u.uint, + error_callback, data, &base)) + return 0; + } + } + + if (is_function) + { + switch (abbrev->attrs[i].name) + { + case DW_AT_call_file: + if (val.encoding == ATTR_VAL_UINT) + { + if (val.u.uint >= lhdr->filenames_count) + { + dwarf_buf_error (unit_buf, + ("invalid file number in " + "DW_AT_call_file attribute"), + 0); + return 0; + } + function->caller_filename = lhdr->filenames[val.u.uint]; + } + break; + + case DW_AT_call_line: + if (val.encoding == ATTR_VAL_UINT) + function->caller_lineno = val.u.uint; + break; + + case DW_AT_abstract_origin: + case DW_AT_specification: + /* Second name preference: override DW_AT_name, don't override + DW_AT_linkage_name. */ + if (have_linkage_name) + break; + { + const char *name; + + name + = read_referenced_name_from_attr (ddata, u, + &abbrev->attrs[i], &val, + error_callback, data); + if (name != NULL) + function->name = name; + } + break; + + case DW_AT_name: + /* Third name preference: don't override. */ + if (function->name != NULL) + break; + if (!resolve_string (&ddata->dwarf_sections, u->is_dwarf64, + ddata->is_bigendian, + u->str_offsets_base, &val, + error_callback, data, &function->name)) + return 0; + break; + + case DW_AT_linkage_name: + case DW_AT_MIPS_linkage_name: + /* First name preference: override all. */ + { + const char *s; + + s = NULL; + if (!resolve_string (&ddata->dwarf_sections, u->is_dwarf64, + ddata->is_bigendian, + u->str_offsets_base, &val, + error_callback, data, &s)) + return 0; + if (s != NULL) + { + function->name = s; + have_linkage_name = 1; + } + } + break; + + case DW_AT_low_pc: case DW_AT_high_pc: case DW_AT_ranges: + update_pcrange (&abbrev->attrs[i], &val, &pcrange); + break; + + default: + break; + } + } + } + + /* If we couldn't find a name for the function, we have no use + for it. */ + if (is_function && function->name == NULL) + { + backtrace_free (state, function, sizeof *function, + error_callback, data); + is_function = 0; + } + + if (is_function) + { + if (pcrange.have_ranges + || (pcrange.have_lowpc && pcrange.have_highpc)) + { + if (!add_ranges (state, &ddata->dwarf_sections, + ddata->base_address, ddata->is_bigendian, + u, base, &pcrange, add_function_range, + (void *) function, error_callback, data, + (void *) vec)) + return 0; + } + else + { + backtrace_free (state, function, sizeof *function, + error_callback, data); + is_function = 0; + } + } + + if (abbrev->has_children) + { + if (!is_function) + { + if (!read_function_entry (state, ddata, u, base, unit_buf, lhdr, + error_callback, data, vec_function, + vec_inlined)) + return 0; + } + else + { + struct function_vector fvec; + + /* Gather any information for inlined functions in + FVEC. */ + + memset (&fvec, 0, sizeof fvec); + + if (!read_function_entry (state, ddata, u, base, unit_buf, lhdr, + error_callback, data, vec_function, + &fvec)) + return 0; + + if (fvec.count > 0) + { + struct function_addrs *p; + struct function_addrs *faddrs; + + /* Allocate a trailing entry, but don't include it + in fvec.count. */ + p = ((struct function_addrs *) + backtrace_vector_grow (state, + sizeof (struct function_addrs), + error_callback, data, + &fvec.vec)); + if (p == NULL) + return 0; + p->low = 0; + --p->low; + p->high = p->low; + p->function = NULL; + + if (!backtrace_vector_release (state, &fvec.vec, + error_callback, data)) + return 0; + + faddrs = (struct function_addrs *) fvec.vec.base; + backtrace_qsort (faddrs, fvec.count, + sizeof (struct function_addrs), + function_addrs_compare); + + function->function_addrs = faddrs; + function->function_addrs_count = fvec.count; + } + } + } + } + + return 1; +} + +/* Read function name information for a compilation unit. We look + through the whole unit looking for function tags. */ + +static void +read_function_info (struct backtrace_state *state, struct dwarf_data *ddata, + const struct line_header *lhdr, + backtrace_error_callback error_callback, void *data, + struct unit *u, struct function_vector *fvec, + struct function_addrs **ret_addrs, + size_t *ret_addrs_count) +{ + struct function_vector lvec; + struct function_vector *pfvec; + struct dwarf_buf unit_buf; + struct function_addrs *p; + struct function_addrs *addrs; + size_t addrs_count; + + /* Use FVEC if it is not NULL. Otherwise use our own vector. */ + if (fvec != NULL) + pfvec = fvec; + else + { + memset (&lvec, 0, sizeof lvec); + pfvec = &lvec; + } + + unit_buf.name = ".debug_info"; + unit_buf.start = ddata->dwarf_sections.data[DEBUG_INFO]; + unit_buf.buf = u->unit_data; + unit_buf.left = u->unit_data_len; + unit_buf.is_bigendian = ddata->is_bigendian; + unit_buf.error_callback = error_callback; + unit_buf.data = data; + unit_buf.reported_underflow = 0; + + while (unit_buf.left > 0) + { + if (!read_function_entry (state, ddata, u, 0, &unit_buf, lhdr, + error_callback, data, pfvec, pfvec)) + return; + } + + if (pfvec->count == 0) + return; + + /* Allocate a trailing entry, but don't include it in + pfvec->count. */ + p = ((struct function_addrs *) + backtrace_vector_grow (state, sizeof (struct function_addrs), + error_callback, data, &pfvec->vec)); + if (p == NULL) + return; + p->low = 0; + --p->low; + p->high = p->low; + p->function = NULL; + + addrs_count = pfvec->count; + + if (fvec == NULL) + { + if (!backtrace_vector_release (state, &lvec.vec, error_callback, data)) + return; + addrs = (struct function_addrs *) pfvec->vec.base; + } + else + { + /* Finish this list of addresses, but leave the remaining space in + the vector available for the next function unit. */ + addrs = ((struct function_addrs *) + backtrace_vector_finish (state, &fvec->vec, + error_callback, data)); + if (addrs == NULL) + return; + fvec->count = 0; + } + + backtrace_qsort (addrs, addrs_count, sizeof (struct function_addrs), + function_addrs_compare); + + *ret_addrs = addrs; + *ret_addrs_count = addrs_count; +} + +/* See if PC is inlined in FUNCTION. If it is, print out the inlined + information, and update FILENAME and LINENO for the caller. + Returns whatever CALLBACK returns, or 0 to keep going. */ + +static int +report_inlined_functions (uintptr_t pc, struct function *function, + backtrace_full_callback callback, void *data, + const char **filename, int *lineno) +{ + struct function_addrs *p; + struct function_addrs *match; + struct function *inlined; + int ret; + + if (function->function_addrs_count == 0) + return 0; + + /* Our search isn't safe if pc == -1, as that is the sentinel + value. */ + if (pc + 1 == 0) + return 0; + + p = ((struct function_addrs *) + bsearch (&pc, function->function_addrs, + function->function_addrs_count, + sizeof (struct function_addrs), + function_addrs_search)); + if (p == NULL) + return 0; + + /* Here pc >= p->low && pc < (p + 1)->low. The function_addrs are + sorted by low, so if pc > p->low we are at the end of a range of + function_addrs with the same low value. If pc == p->low walk + forward to the end of the range with that low value. Then walk + backward and use the first range that includes pc. */ + while (pc == (p + 1)->low) + ++p; + match = NULL; + while (1) + { + if (pc < p->high) + { + match = p; + break; + } + if (p == function->function_addrs) + break; + if ((p - 1)->low < p->low) + break; + --p; + } + if (match == NULL) + return 0; + + /* We found an inlined call. */ + + inlined = match->function; + + /* Report any calls inlined into this one. */ + ret = report_inlined_functions (pc, inlined, callback, data, + filename, lineno); + if (ret != 0) + return ret; + + /* Report this inlined call. */ + ret = callback (data, pc, *filename, *lineno, inlined->name); + if (ret != 0) + return ret; + + /* Our caller will report the caller of the inlined function; tell + it the appropriate filename and line number. */ + *filename = inlined->caller_filename; + *lineno = inlined->caller_lineno; + + return 0; +} + +/* Look for a PC in the DWARF mapping for one module. On success, + call CALLBACK and return whatever it returns. On error, call + ERROR_CALLBACK and return 0. Sets *FOUND to 1 if the PC is found, + 0 if not. */ + +static int +dwarf_lookup_pc (struct backtrace_state *state, struct dwarf_data *ddata, + uintptr_t pc, backtrace_full_callback callback, + backtrace_error_callback error_callback, void *data, + int *found) +{ + struct unit_addrs *entry; + int found_entry; + struct unit *u; + int new_data; + struct line *lines; + struct line *ln; + struct function_addrs *p; + struct function_addrs *fmatch; + struct function *function; + const char *filename; + int lineno; + int ret; + + *found = 1; + + /* Find an address range that includes PC. Our search isn't safe if + PC == -1, as we use that as a sentinel value, so skip the search + in that case. */ + entry = (ddata->addrs_count == 0 || pc + 1 == 0 + ? NULL + : bsearch (&pc, ddata->addrs, ddata->addrs_count, + sizeof (struct unit_addrs), unit_addrs_search)); + + if (entry == NULL) + { + *found = 0; + return 0; + } + + /* Here pc >= entry->low && pc < (entry + 1)->low. The unit_addrs + are sorted by low, so if pc > p->low we are at the end of a range + of unit_addrs with the same low value. If pc == p->low walk + forward to the end of the range with that low value. Then walk + backward and use the first range that includes pc. */ + while (pc == (entry + 1)->low) + ++entry; + found_entry = 0; + while (1) + { + if (pc < entry->high) + { + found_entry = 1; + break; + } + if (entry == ddata->addrs) + break; + if ((entry - 1)->low < entry->low) + break; + --entry; + } + if (!found_entry) + { + *found = 0; + return 0; + } + + /* We need the lines, lines_count, function_addrs, + function_addrs_count fields of u. If they are not set, we need + to set them. When running in threaded mode, we need to allow for + the possibility that some other thread is setting them + simultaneously. */ + + u = entry->u; + lines = u->lines; + + /* Skip units with no useful line number information by walking + backward. Useless line number information is marked by setting + lines == -1. */ + while (entry > ddata->addrs + && pc >= (entry - 1)->low + && pc < (entry - 1)->high) + { + if (state->threaded) + lines = (struct line *) backtrace_atomic_load_pointer (&u->lines); + + if (lines != (struct line *) (uintptr_t) -1) + break; + + --entry; + + u = entry->u; + lines = u->lines; + } + + if (state->threaded) + lines = backtrace_atomic_load_pointer (&u->lines); + + new_data = 0; + if (lines == NULL) + { + struct function_addrs *function_addrs; + size_t function_addrs_count; + struct line_header lhdr; + size_t count; + + /* We have never read the line information for this unit. Read + it now. */ + + function_addrs = NULL; + function_addrs_count = 0; + if (read_line_info (state, ddata, error_callback, data, entry->u, &lhdr, + &lines, &count)) + { + struct function_vector *pfvec; + + /* If not threaded, reuse DDATA->FVEC for better memory + consumption. */ + if (state->threaded) + pfvec = NULL; + else + pfvec = &ddata->fvec; + read_function_info (state, ddata, &lhdr, error_callback, data, + entry->u, pfvec, &function_addrs, + &function_addrs_count); + free_line_header (state, &lhdr, error_callback, data); + new_data = 1; + } + + /* Atomically store the information we just read into the unit. + If another thread is simultaneously writing, it presumably + read the same information, and we don't care which one we + wind up with; we just leak the other one. We do have to + write the lines field last, so that the acquire-loads above + ensure that the other fields are set. */ + + if (!state->threaded) + { + u->lines_count = count; + u->function_addrs = function_addrs; + u->function_addrs_count = function_addrs_count; + u->lines = lines; + } + else + { + backtrace_atomic_store_size_t (&u->lines_count, count); + backtrace_atomic_store_pointer (&u->function_addrs, function_addrs); + backtrace_atomic_store_size_t (&u->function_addrs_count, + function_addrs_count); + backtrace_atomic_store_pointer (&u->lines, lines); + } + } + + /* Now all fields of U have been initialized. */ + + if (lines == (struct line *) (uintptr_t) -1) + { + /* If reading the line number information failed in some way, + try again to see if there is a better compilation unit for + this PC. */ + if (new_data) + return dwarf_lookup_pc (state, ddata, pc, callback, error_callback, + data, found); + return callback (data, pc, NULL, 0, NULL); + } + + /* Search for PC within this unit. */ + + ln = (struct line *) bsearch (&pc, lines, entry->u->lines_count, + sizeof (struct line), line_search); + if (ln == NULL) + { + /* The PC is between the low_pc and high_pc attributes of the + compilation unit, but no entry in the line table covers it. + This implies that the start of the compilation unit has no + line number information. */ + + if (entry->u->abs_filename == NULL) + { + const char *filename; + + filename = entry->u->filename; + if (filename != NULL + && !IS_ABSOLUTE_PATH (filename) + && entry->u->comp_dir != NULL) + { + size_t filename_len; + const char *dir; + size_t dir_len; + char *s; + + filename_len = strlen (filename); + dir = entry->u->comp_dir; + dir_len = strlen (dir); + s = (char *) backtrace_alloc (state, dir_len + filename_len + 2, + error_callback, data); + if (s == NULL) + { + *found = 0; + return 0; + } + memcpy (s, dir, dir_len); + /* FIXME: Should use backslash if DOS file system. */ + s[dir_len] = '/'; + memcpy (s + dir_len + 1, filename, filename_len + 1); + filename = s; + } + entry->u->abs_filename = filename; + } + + return callback (data, pc, entry->u->abs_filename, 0, NULL); + } + + /* Search for function name within this unit. */ + + if (entry->u->function_addrs_count == 0) + return callback (data, pc, ln->filename, ln->lineno, NULL); + + p = ((struct function_addrs *) + bsearch (&pc, entry->u->function_addrs, + entry->u->function_addrs_count, + sizeof (struct function_addrs), + function_addrs_search)); + if (p == NULL) + return callback (data, pc, ln->filename, ln->lineno, NULL); + + /* Here pc >= p->low && pc < (p + 1)->low. The function_addrs are + sorted by low, so if pc > p->low we are at the end of a range of + function_addrs with the same low value. If pc == p->low walk + forward to the end of the range with that low value. Then walk + backward and use the first range that includes pc. */ + while (pc == (p + 1)->low) + ++p; + fmatch = NULL; + while (1) + { + if (pc < p->high) + { + fmatch = p; + break; + } + if (p == entry->u->function_addrs) + break; + if ((p - 1)->low < p->low) + break; + --p; + } + if (fmatch == NULL) + return callback (data, pc, ln->filename, ln->lineno, NULL); + + function = fmatch->function; + + filename = ln->filename; + lineno = ln->lineno; + + ret = report_inlined_functions (pc, function, callback, data, + &filename, &lineno); + if (ret != 0) + return ret; + + return callback (data, pc, filename, lineno, function->name); +} + + +/* Return the file/line information for a PC using the DWARF mapping + we built earlier. */ + +static int +dwarf_fileline (struct backtrace_state *state, uintptr_t pc, + backtrace_full_callback callback, + backtrace_error_callback error_callback, void *data) +{ + struct dwarf_data *ddata; + int found; + int ret; + + if (!state->threaded) + { + for (ddata = (struct dwarf_data *) state->fileline_data; + ddata != NULL; + ddata = ddata->next) + { + ret = dwarf_lookup_pc (state, ddata, pc, callback, error_callback, + data, &found); + if (ret != 0 || found) + return ret; + } + } + else + { + struct dwarf_data **pp; + + pp = (struct dwarf_data **) (void *) &state->fileline_data; + while (1) + { + ddata = backtrace_atomic_load_pointer (pp); + if (ddata == NULL) + break; + + ret = dwarf_lookup_pc (state, ddata, pc, callback, error_callback, + data, &found); + if (ret != 0 || found) + return ret; + + pp = &ddata->next; + } + } + + /* FIXME: See if any libraries have been dlopen'ed. */ + + return callback (data, pc, NULL, 0, NULL); +} + +/* Initialize our data structures from the DWARF debug info for a + file. Return NULL on failure. */ + +static struct dwarf_data * +build_dwarf_data (struct backtrace_state *state, + uintptr_t base_address, + const struct dwarf_sections *dwarf_sections, + int is_bigendian, + struct dwarf_data *altlink, + backtrace_error_callback error_callback, + void *data) +{ + struct unit_addrs_vector addrs_vec; + struct unit_addrs *addrs; + size_t addrs_count; + struct unit_vector units_vec; + struct unit **units; + size_t units_count; + struct dwarf_data *fdata; + + if (!build_address_map (state, base_address, dwarf_sections, is_bigendian, + altlink, error_callback, data, &addrs_vec, + &units_vec)) + return NULL; + + if (!backtrace_vector_release (state, &addrs_vec.vec, error_callback, data)) + return NULL; + if (!backtrace_vector_release (state, &units_vec.vec, error_callback, data)) + return NULL; + addrs = (struct unit_addrs *) addrs_vec.vec.base; + units = (struct unit **) units_vec.vec.base; + addrs_count = addrs_vec.count; + units_count = units_vec.count; + backtrace_qsort (addrs, addrs_count, sizeof (struct unit_addrs), + unit_addrs_compare); + /* No qsort for units required, already sorted. */ + + fdata = ((struct dwarf_data *) + backtrace_alloc (state, sizeof (struct dwarf_data), + error_callback, data)); + if (fdata == NULL) + return NULL; + + fdata->next = NULL; + fdata->altlink = altlink; + fdata->base_address = base_address; + fdata->addrs = addrs; + fdata->addrs_count = addrs_count; + fdata->units = units; + fdata->units_count = units_count; + fdata->dwarf_sections = *dwarf_sections; + fdata->is_bigendian = is_bigendian; + memset (&fdata->fvec, 0, sizeof fdata->fvec); + + return fdata; +} + +/* Build our data structures from the DWARF sections for a module. + Set FILELINE_FN and STATE->FILELINE_DATA. Return 1 on success, 0 + on failure. */ + +int +backtrace_dwarf_add (struct backtrace_state *state, + uintptr_t base_address, + const struct dwarf_sections *dwarf_sections, + int is_bigendian, + struct dwarf_data *fileline_altlink, + backtrace_error_callback error_callback, + void *data, fileline *fileline_fn, + struct dwarf_data **fileline_entry) +{ + struct dwarf_data *fdata; + + fdata = build_dwarf_data (state, base_address, dwarf_sections, is_bigendian, + fileline_altlink, error_callback, data); + if (fdata == NULL) + return 0; + + if (fileline_entry != NULL) + *fileline_entry = fdata; + + if (!state->threaded) + { + struct dwarf_data **pp; + + for (pp = (struct dwarf_data **) (void *) &state->fileline_data; + *pp != NULL; + pp = &(*pp)->next) + ; + *pp = fdata; + } + else + { + while (1) + { + struct dwarf_data **pp; + + pp = (struct dwarf_data **) (void *) &state->fileline_data; + + while (1) + { + struct dwarf_data *p; + + p = backtrace_atomic_load_pointer (pp); + + if (p == NULL) + break; + + pp = &p->next; + } + + if (__sync_bool_compare_and_swap (pp, NULL, fdata)) + break; + } + } + + *fileline_fn = dwarf_fileline; + + return 1; +} diff --git a/libbacktrace/edtest.c b/libbacktrace/edtest.c new file mode 100644 index 00000000000..c5ced130c32 --- /dev/null +++ b/libbacktrace/edtest.c @@ -0,0 +1,120 @@ +/* edtest.c -- Test for libbacktrace storage allocation stress handling + Copyright (C) 2017-2021 Free Software Foundation, Inc. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> + +#include "backtrace.h" +#include "backtrace-supported.h" +#include "internal.h" + +#include "testlib.h" + +static int test1 (void) __attribute__ ((noinline, noclone, unused)); +extern int f2 (int); +extern int f3 (int, int); + +static int +test1 (void) +{ + /* Returning a value here and elsewhere avoids a tailcall which + would mess up the backtrace. */ + return f2 (__LINE__) + 1; +} + +int +f3 (int f1line, int f2line) +{ + struct info all[20]; + struct bdata data; + int f3line; + int i; + + data.all = &all[0]; + data.index = 0; + data.max = 20; + data.failed = 0; + + f3line = __LINE__ + 1; + i = backtrace_full (state, 0, callback_one, error_callback_one, &data); + + if (i != 0) + { + fprintf (stderr, "test1: unexpected return value %d\n", i); + data.failed = 1; + } + + if (data.index < 3) + { + fprintf (stderr, + "test1: not enough frames; got %zu, expected at least 3\n", + data.index); + data.failed = 1; + } + + check ("test1", 0, all, f3line, "f3", "edtest.c", &data.failed); + check ("test1", 1, all, f2line, "f2", "edtest2_build.c", &data.failed); + check ("test1", 2, all, f1line, "test1", "edtest.c", &data.failed); + + printf ("%s: backtrace_full alloc stress\n", data.failed ? "FAIL" : "PASS"); + + if (data.failed) + ++failures; + + return failures; +} + +int +main (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED) +{ + state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS, + error_callback_create, NULL); + + // Grab the storage allocation lock prior to doing anything interesting. + // The intent here is to insure that the backtrace_alloc code is forced + // to always call mmap() for new memory as opposed to reusing previously + // allocated memory from the free list. Doing things this way helps + // simulate what you might see in a multithreaded program in which there + // are racing calls to the allocator. + struct backtrace_state *state_internal = + (struct backtrace_state *) state; + state_internal->lock_alloc = 1; + + // Kick off the test + test1(); + + exit (failures > 0 ? EXIT_FAILURE : EXIT_SUCCESS); +} diff --git a/libbacktrace/edtest2.c b/libbacktrace/edtest2.c new file mode 100644 index 00000000000..cffb4fdb6d9 --- /dev/null +++ b/libbacktrace/edtest2.c @@ -0,0 +1,43 @@ +/* edtest2.c -- Test for libbacktrace storage allocation stress handling (p2) + Copyright (C) 2017-2021 Free Software Foundation, Inc. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +/* This file intentionally written without any #include's + */ + +extern int f3(int, int); +extern int f2(int); + +int f2(int x) +{ + /* Returning a value here and elsewhere avoids a tailcall which + would mess up the backtrace. */ + return f3(x, __LINE__) + 3; +} diff --git a/libbacktrace/elf.c b/libbacktrace/elf.c new file mode 100644 index 00000000000..79d56146fc6 --- /dev/null +++ b/libbacktrace/elf.c @@ -0,0 +1,4919 @@ +/* elf.c -- Get debug data from an ELF file for backtraces. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <errno.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> + +#ifdef HAVE_DL_ITERATE_PHDR +#include <link.h> +#endif + +#include "backtrace.h" +#include "internal.h" + +#ifndef S_ISLNK + #ifndef S_IFLNK + #define S_IFLNK 0120000 + #endif + #ifndef S_IFMT + #define S_IFMT 0170000 + #endif + #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK) +#endif + +#ifndef __GNUC__ +#define __builtin_prefetch(p, r, l) +#define unlikely(x) (x) +#else +#define unlikely(x) __builtin_expect(!!(x), 0) +#endif + +#if !defined(HAVE_DECL_STRNLEN) || !HAVE_DECL_STRNLEN + +/* If strnlen is not declared, provide our own version. */ + +static size_t +xstrnlen (const char *s, size_t maxlen) +{ + size_t i; + + for (i = 0; i < maxlen; ++i) + if (s[i] == '\0') + break; + return i; +} + +#define strnlen xstrnlen + +#endif + +#ifndef HAVE_LSTAT + +/* Dummy version of lstat for systems that don't have it. */ + +static int +xlstat (const char *path ATTRIBUTE_UNUSED, struct stat *st ATTRIBUTE_UNUSED) +{ + return -1; +} + +#define lstat xlstat + +#endif + +#ifndef HAVE_READLINK + +/* Dummy version of readlink for systems that don't have it. */ + +static ssize_t +xreadlink (const char *path ATTRIBUTE_UNUSED, char *buf ATTRIBUTE_UNUSED, + size_t bufsz ATTRIBUTE_UNUSED) +{ + return -1; +} + +#define readlink xreadlink + +#endif + +#ifndef HAVE_DL_ITERATE_PHDR + +/* Dummy version of dl_iterate_phdr for systems that don't have it. */ + +#define dl_phdr_info x_dl_phdr_info +#define dl_iterate_phdr x_dl_iterate_phdr + +struct dl_phdr_info +{ + uintptr_t dlpi_addr; + const char *dlpi_name; +}; + +static int +dl_iterate_phdr (int (*callback) (struct dl_phdr_info *, + size_t, void *) ATTRIBUTE_UNUSED, + void *data ATTRIBUTE_UNUSED) +{ + return 0; +} + +#endif /* ! defined (HAVE_DL_ITERATE_PHDR) */ + +/* The configure script must tell us whether we are 32-bit or 64-bit + ELF. We could make this code test and support either possibility, + but there is no point. This code only works for the currently + running executable, which means that we know the ELF mode at + configure time. */ + +#if BACKTRACE_ELF_SIZE != 32 && BACKTRACE_ELF_SIZE != 64 +#error "Unknown BACKTRACE_ELF_SIZE" +#endif + +/* <link.h> might #include <elf.h> which might define our constants + with slightly different values. Undefine them to be safe. */ + +#undef EI_NIDENT +#undef EI_MAG0 +#undef EI_MAG1 +#undef EI_MAG2 +#undef EI_MAG3 +#undef EI_CLASS +#undef EI_DATA +#undef EI_VERSION +#undef ELF_MAG0 +#undef ELF_MAG1 +#undef ELF_MAG2 +#undef ELF_MAG3 +#undef ELFCLASS32 +#undef ELFCLASS64 +#undef ELFDATA2LSB +#undef ELFDATA2MSB +#undef EV_CURRENT +#undef ET_DYN +#undef EM_PPC64 +#undef EF_PPC64_ABI +#undef SHN_LORESERVE +#undef SHN_XINDEX +#undef SHN_UNDEF +#undef SHT_PROGBITS +#undef SHT_SYMTAB +#undef SHT_STRTAB +#undef SHT_DYNSYM +#undef SHF_COMPRESSED +#undef STT_OBJECT +#undef STT_FUNC +#undef NT_GNU_BUILD_ID +#undef ELFCOMPRESS_ZLIB + +/* Basic types. */ + +typedef uint16_t b_elf_half; /* Elf_Half. */ +typedef uint32_t b_elf_word; /* Elf_Word. */ +typedef int32_t b_elf_sword; /* Elf_Sword. */ + +#if BACKTRACE_ELF_SIZE == 32 + +typedef uint32_t b_elf_addr; /* Elf_Addr. */ +typedef uint32_t b_elf_off; /* Elf_Off. */ + +typedef uint32_t b_elf_wxword; /* 32-bit Elf_Word, 64-bit ELF_Xword. */ + +#else + +typedef uint64_t b_elf_addr; /* Elf_Addr. */ +typedef uint64_t b_elf_off; /* Elf_Off. */ +typedef uint64_t b_elf_xword; /* Elf_Xword. */ +typedef int64_t b_elf_sxword; /* Elf_Sxword. */ + +typedef uint64_t b_elf_wxword; /* 32-bit Elf_Word, 64-bit ELF_Xword. */ + +#endif + +/* Data structures and associated constants. */ + +#define EI_NIDENT 16 + +typedef struct { + unsigned char e_ident[EI_NIDENT]; /* ELF "magic number" */ + b_elf_half e_type; /* Identifies object file type */ + b_elf_half e_machine; /* Specifies required architecture */ + b_elf_word e_version; /* Identifies object file version */ + b_elf_addr e_entry; /* Entry point virtual address */ + b_elf_off e_phoff; /* Program header table file offset */ + b_elf_off e_shoff; /* Section header table file offset */ + b_elf_word e_flags; /* Processor-specific flags */ + b_elf_half e_ehsize; /* ELF header size in bytes */ + b_elf_half e_phentsize; /* Program header table entry size */ + b_elf_half e_phnum; /* Program header table entry count */ + b_elf_half e_shentsize; /* Section header table entry size */ + b_elf_half e_shnum; /* Section header table entry count */ + b_elf_half e_shstrndx; /* Section header string table index */ +} b_elf_ehdr; /* Elf_Ehdr. */ + +#define EI_MAG0 0 +#define EI_MAG1 1 +#define EI_MAG2 2 +#define EI_MAG3 3 +#define EI_CLASS 4 +#define EI_DATA 5 +#define EI_VERSION 6 + +#define ELFMAG0 0x7f +#define ELFMAG1 'E' +#define ELFMAG2 'L' +#define ELFMAG3 'F' + +#define ELFCLASS32 1 +#define ELFCLASS64 2 + +#define ELFDATA2LSB 1 +#define ELFDATA2MSB 2 + +#define EV_CURRENT 1 + +#define ET_DYN 3 + +#define EM_PPC64 21 +#define EF_PPC64_ABI 3 + +typedef struct { + b_elf_word sh_name; /* Section name, index in string tbl */ + b_elf_word sh_type; /* Type of section */ + b_elf_wxword sh_flags; /* Miscellaneous section attributes */ + b_elf_addr sh_addr; /* Section virtual addr at execution */ + b_elf_off sh_offset; /* Section file offset */ + b_elf_wxword sh_size; /* Size of section in bytes */ + b_elf_word sh_link; /* Index of another section */ + b_elf_word sh_info; /* Additional section information */ + b_elf_wxword sh_addralign; /* Section alignment */ + b_elf_wxword sh_entsize; /* Entry size if section holds table */ +} b_elf_shdr; /* Elf_Shdr. */ + +#define SHN_UNDEF 0x0000 /* Undefined section */ +#define SHN_LORESERVE 0xFF00 /* Begin range of reserved indices */ +#define SHN_XINDEX 0xFFFF /* Section index is held elsewhere */ + +#define SHT_PROGBITS 1 +#define SHT_SYMTAB 2 +#define SHT_STRTAB 3 +#define SHT_DYNSYM 11 + +#define SHF_COMPRESSED 0x800 + +#if BACKTRACE_ELF_SIZE == 32 + +typedef struct +{ + b_elf_word st_name; /* Symbol name, index in string tbl */ + b_elf_addr st_value; /* Symbol value */ + b_elf_word st_size; /* Symbol size */ + unsigned char st_info; /* Symbol binding and type */ + unsigned char st_other; /* Visibility and other data */ + b_elf_half st_shndx; /* Symbol section index */ +} b_elf_sym; /* Elf_Sym. */ + +#else /* BACKTRACE_ELF_SIZE != 32 */ + +typedef struct +{ + b_elf_word st_name; /* Symbol name, index in string tbl */ + unsigned char st_info; /* Symbol binding and type */ + unsigned char st_other; /* Visibility and other data */ + b_elf_half st_shndx; /* Symbol section index */ + b_elf_addr st_value; /* Symbol value */ + b_elf_xword st_size; /* Symbol size */ +} b_elf_sym; /* Elf_Sym. */ + +#endif /* BACKTRACE_ELF_SIZE != 32 */ + +#define STT_OBJECT 1 +#define STT_FUNC 2 + +typedef struct +{ + uint32_t namesz; + uint32_t descsz; + uint32_t type; + char name[1]; +} b_elf_note; + +#define NT_GNU_BUILD_ID 3 + +#if BACKTRACE_ELF_SIZE == 32 + +typedef struct +{ + b_elf_word ch_type; /* Compresstion algorithm */ + b_elf_word ch_size; /* Uncompressed size */ + b_elf_word ch_addralign; /* Alignment for uncompressed data */ +} b_elf_chdr; /* Elf_Chdr */ + +#else /* BACKTRACE_ELF_SIZE != 32 */ + +typedef struct +{ + b_elf_word ch_type; /* Compression algorithm */ + b_elf_word ch_reserved; /* Reserved */ + b_elf_xword ch_size; /* Uncompressed size */ + b_elf_xword ch_addralign; /* Alignment for uncompressed data */ +} b_elf_chdr; /* Elf_Chdr */ + +#endif /* BACKTRACE_ELF_SIZE != 32 */ + +#define ELFCOMPRESS_ZLIB 1 + +/* Names of sections, indexed by enum dwarf_section in internal.h. */ + +static const char * const dwarf_section_names[DEBUG_MAX] = +{ + ".debug_info", + ".debug_line", + ".debug_abbrev", + ".debug_ranges", + ".debug_str", + ".debug_addr", + ".debug_str_offsets", + ".debug_line_str", + ".debug_rnglists" +}; + +/* Information we gather for the sections we care about. */ + +struct debug_section_info +{ + /* Section file offset. */ + off_t offset; + /* Section size. */ + size_t size; + /* Section contents, after read from file. */ + const unsigned char *data; + /* Whether the SHF_COMPRESSED flag is set for the section. */ + int compressed; +}; + +/* Information we keep for an ELF symbol. */ + +struct elf_symbol +{ + /* The name of the symbol. */ + const char *name; + /* The address of the symbol. */ + uintptr_t address; + /* The size of the symbol. */ + size_t size; +}; + +/* Information to pass to elf_syminfo. */ + +struct elf_syminfo_data +{ + /* Symbols for the next module. */ + struct elf_syminfo_data *next; + /* The ELF symbols, sorted by address. */ + struct elf_symbol *symbols; + /* The number of symbols. */ + size_t count; +}; + +/* A view that works for either a file or memory. */ + +struct elf_view +{ + struct backtrace_view view; + int release; /* If non-zero, must call backtrace_release_view. */ +}; + +/* Information about PowerPC64 ELFv1 .opd section. */ + +struct elf_ppc64_opd_data +{ + /* Address of the .opd section. */ + b_elf_addr addr; + /* Section data. */ + const char *data; + /* Size of the .opd section. */ + size_t size; + /* Corresponding section view. */ + struct elf_view view; +}; + +/* Create a view of SIZE bytes from DESCRIPTOR/MEMORY at OFFSET. */ + +static int +elf_get_view (struct backtrace_state *state, int descriptor, + const unsigned char *memory, size_t memory_size, off_t offset, + uint64_t size, backtrace_error_callback error_callback, + void *data, struct elf_view *view) +{ + if (memory == NULL) + { + view->release = 1; + return backtrace_get_view (state, descriptor, offset, size, + error_callback, data, &view->view); + } + else + { + if ((uint64_t) offset + size > (uint64_t) memory_size) + { + error_callback (data, "out of range for in-memory file", 0); + return 0; + } + view->view.data = (const void *) (memory + offset); + view->view.base = NULL; + view->view.len = size; + view->release = 0; + return 1; + } +} + +/* Release a view read by elf_get_view. */ + +static void +elf_release_view (struct backtrace_state *state, struct elf_view *view, + backtrace_error_callback error_callback, void *data) +{ + if (view->release) + backtrace_release_view (state, &view->view, error_callback, data); +} + +/* Compute the CRC-32 of BUF/LEN. This uses the CRC used for + .gnu_debuglink files. */ + +static uint32_t +elf_crc32 (uint32_t crc, const unsigned char *buf, size_t len) +{ + static const uint32_t crc32_table[256] = + { + 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, + 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, + 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, + 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, + 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, + 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, + 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, + 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, + 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, + 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, + 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, + 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, + 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, + 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, + 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, + 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, + 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, + 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, + 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, + 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, + 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, + 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, + 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, + 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, + 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, + 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, + 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, + 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, + 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, + 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, + 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, + 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, + 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, + 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, + 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, + 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, + 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, + 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, + 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, + 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, + 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, + 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, + 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, + 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, + 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, + 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, + 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, + 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, + 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, + 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, + 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, + 0x2d02ef8d + }; + const unsigned char *end; + + crc = ~crc; + for (end = buf + len; buf < end; ++ buf) + crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8); + return ~crc; +} + +/* Return the CRC-32 of the entire file open at DESCRIPTOR. */ + +static uint32_t +elf_crc32_file (struct backtrace_state *state, int descriptor, + backtrace_error_callback error_callback, void *data) +{ + struct stat st; + struct backtrace_view file_view; + uint32_t ret; + + if (fstat (descriptor, &st) < 0) + { + error_callback (data, "fstat", errno); + return 0; + } + + if (!backtrace_get_view (state, descriptor, 0, st.st_size, error_callback, + data, &file_view)) + return 0; + + ret = elf_crc32 (0, (const unsigned char *) file_view.data, st.st_size); + + backtrace_release_view (state, &file_view, error_callback, data); + + return ret; +} + +/* A dummy callback function used when we can't find a symbol + table. */ + +static void +elf_nosyms (struct backtrace_state *state ATTRIBUTE_UNUSED, + uintptr_t addr ATTRIBUTE_UNUSED, + backtrace_syminfo_callback callback ATTRIBUTE_UNUSED, + backtrace_error_callback error_callback, void *data) +{ + error_callback (data, "no symbol table in ELF executable", -1); +} + +/* A callback function used when we can't find any debug info. */ + +static int +elf_nodebug (struct backtrace_state *state, uintptr_t pc, + backtrace_full_callback callback, + backtrace_error_callback error_callback, void *data) +{ + if (state->syminfo_fn != NULL && state->syminfo_fn != elf_nosyms) + { + struct backtrace_call_full bdata; + + /* Fetch symbol information so that we can least get the + function name. */ + + bdata.full_callback = callback; + bdata.full_error_callback = error_callback; + bdata.full_data = data; + bdata.ret = 0; + state->syminfo_fn (state, pc, backtrace_syminfo_to_full_callback, + backtrace_syminfo_to_full_error_callback, &bdata); + return bdata.ret; + } + + error_callback (data, "no debug info in ELF executable", -1); + return 0; +} + +/* Compare struct elf_symbol for qsort. */ + +static int +elf_symbol_compare (const void *v1, const void *v2) +{ + const struct elf_symbol *e1 = (const struct elf_symbol *) v1; + const struct elf_symbol *e2 = (const struct elf_symbol *) v2; + + if (e1->address < e2->address) + return -1; + else if (e1->address > e2->address) + return 1; + else + return 0; +} + +/* Compare an ADDR against an elf_symbol for bsearch. We allocate one + extra entry in the array so that this can look safely at the next + entry. */ + +static int +elf_symbol_search (const void *vkey, const void *ventry) +{ + const uintptr_t *key = (const uintptr_t *) vkey; + const struct elf_symbol *entry = (const struct elf_symbol *) ventry; + uintptr_t addr; + + addr = *key; + if (addr < entry->address) + return -1; + else if (addr >= entry->address + entry->size) + return 1; + else + return 0; +} + +/* Initialize the symbol table info for elf_syminfo. */ + +static int +elf_initialize_syminfo (struct backtrace_state *state, + uintptr_t base_address, + const unsigned char *symtab_data, size_t symtab_size, + const unsigned char *strtab, size_t strtab_size, + backtrace_error_callback error_callback, + void *data, struct elf_syminfo_data *sdata, + struct elf_ppc64_opd_data *opd) +{ + size_t sym_count; + const b_elf_sym *sym; + size_t elf_symbol_count; + size_t elf_symbol_size; + struct elf_symbol *elf_symbols; + size_t i; + unsigned int j; + + sym_count = symtab_size / sizeof (b_elf_sym); + + /* We only care about function symbols. Count them. */ + sym = (const b_elf_sym *) symtab_data; + elf_symbol_count = 0; + for (i = 0; i < sym_count; ++i, ++sym) + { + int info; + + info = sym->st_info & 0xf; + if ((info == STT_FUNC || info == STT_OBJECT) + && sym->st_shndx != SHN_UNDEF) + ++elf_symbol_count; + } + + elf_symbol_size = elf_symbol_count * sizeof (struct elf_symbol); + elf_symbols = ((struct elf_symbol *) + backtrace_alloc (state, elf_symbol_size, error_callback, + data)); + if (elf_symbols == NULL) + return 0; + + sym = (const b_elf_sym *) symtab_data; + j = 0; + for (i = 0; i < sym_count; ++i, ++sym) + { + int info; + + info = sym->st_info & 0xf; + if (info != STT_FUNC && info != STT_OBJECT) + continue; + if (sym->st_shndx == SHN_UNDEF) + continue; + if (sym->st_name >= strtab_size) + { + error_callback (data, "symbol string index out of range", 0); + backtrace_free (state, elf_symbols, elf_symbol_size, error_callback, + data); + return 0; + } + elf_symbols[j].name = (const char *) strtab + sym->st_name; + /* Special case PowerPC64 ELFv1 symbols in .opd section, if the symbol + is a function descriptor, read the actual code address from the + descriptor. */ + if (opd + && sym->st_value >= opd->addr + && sym->st_value < opd->addr + opd->size) + elf_symbols[j].address + = *(const b_elf_addr *) (opd->data + (sym->st_value - opd->addr)); + else + elf_symbols[j].address = sym->st_value; + elf_symbols[j].address += base_address; + elf_symbols[j].size = sym->st_size; + ++j; + } + + backtrace_qsort (elf_symbols, elf_symbol_count, sizeof (struct elf_symbol), + elf_symbol_compare); + + sdata->next = NULL; + sdata->symbols = elf_symbols; + sdata->count = elf_symbol_count; + + return 1; +} + +/* Add EDATA to the list in STATE. */ + +static void +elf_add_syminfo_data (struct backtrace_state *state, + struct elf_syminfo_data *edata) +{ + if (!state->threaded) + { + struct elf_syminfo_data **pp; + + for (pp = (struct elf_syminfo_data **) (void *) &state->syminfo_data; + *pp != NULL; + pp = &(*pp)->next) + ; + *pp = edata; + } + else + { + while (1) + { + struct elf_syminfo_data **pp; + + pp = (struct elf_syminfo_data **) (void *) &state->syminfo_data; + + while (1) + { + struct elf_syminfo_data *p; + + p = backtrace_atomic_load_pointer (pp); + + if (p == NULL) + break; + + pp = &p->next; + } + + if (__sync_bool_compare_and_swap (pp, NULL, edata)) + break; + } + } +} + +/* Return the symbol name and value for an ADDR. */ + +static void +elf_syminfo (struct backtrace_state *state, uintptr_t addr, + backtrace_syminfo_callback callback, + backtrace_error_callback error_callback ATTRIBUTE_UNUSED, + void *data) +{ + struct elf_syminfo_data *edata; + struct elf_symbol *sym = NULL; + + if (!state->threaded) + { + for (edata = (struct elf_syminfo_data *) state->syminfo_data; + edata != NULL; + edata = edata->next) + { + sym = ((struct elf_symbol *) + bsearch (&addr, edata->symbols, edata->count, + sizeof (struct elf_symbol), elf_symbol_search)); + if (sym != NULL) + break; + } + } + else + { + struct elf_syminfo_data **pp; + + pp = (struct elf_syminfo_data **) (void *) &state->syminfo_data; + while (1) + { + edata = backtrace_atomic_load_pointer (pp); + if (edata == NULL) + break; + + sym = ((struct elf_symbol *) + bsearch (&addr, edata->symbols, edata->count, + sizeof (struct elf_symbol), elf_symbol_search)); + if (sym != NULL) + break; + + pp = &edata->next; + } + } + + if (sym == NULL) + callback (data, addr, NULL, 0, 0); + else + callback (data, addr, sym->name, sym->address, sym->size); +} + +/* Return whether FILENAME is a symlink. */ + +static int +elf_is_symlink (const char *filename) +{ + struct stat st; + + if (lstat (filename, &st) < 0) + return 0; + return S_ISLNK (st.st_mode); +} + +/* Return the results of reading the symlink FILENAME in a buffer + allocated by backtrace_alloc. Return the length of the buffer in + *LEN. */ + +static char * +elf_readlink (struct backtrace_state *state, const char *filename, + backtrace_error_callback error_callback, void *data, + size_t *plen) +{ + size_t len; + char *buf; + + len = 128; + while (1) + { + ssize_t rl; + + buf = backtrace_alloc (state, len, error_callback, data); + if (buf == NULL) + return NULL; + rl = readlink (filename, buf, len); + if (rl < 0) + { + backtrace_free (state, buf, len, error_callback, data); + return NULL; + } + if ((size_t) rl < len - 1) + { + buf[rl] = '\0'; + *plen = len; + return buf; + } + backtrace_free (state, buf, len, error_callback, data); + len *= 2; + } +} + +#define SYSTEM_BUILD_ID_DIR "/usr/lib/debug/.build-id/" + +/* Open a separate debug info file, using the build ID to find it. + Returns an open file descriptor, or -1. + + The GDB manual says that the only place gdb looks for a debug file + when the build ID is known is in /usr/lib/debug/.build-id. */ + +static int +elf_open_debugfile_by_buildid (struct backtrace_state *state, + const char *buildid_data, size_t buildid_size, + backtrace_error_callback error_callback, + void *data) +{ + const char * const prefix = SYSTEM_BUILD_ID_DIR; + const size_t prefix_len = strlen (prefix); + const char * const suffix = ".debug"; + const size_t suffix_len = strlen (suffix); + size_t len; + char *bd_filename; + char *t; + size_t i; + int ret; + int does_not_exist; + + len = prefix_len + buildid_size * 2 + suffix_len + 2; + bd_filename = backtrace_alloc (state, len, error_callback, data); + if (bd_filename == NULL) + return -1; + + t = bd_filename; + memcpy (t, prefix, prefix_len); + t += prefix_len; + for (i = 0; i < buildid_size; i++) + { + unsigned char b; + unsigned char nib; + + b = (unsigned char) buildid_data[i]; + nib = (b & 0xf0) >> 4; + *t++ = nib < 10 ? '0' + nib : 'a' + nib - 10; + nib = b & 0x0f; + *t++ = nib < 10 ? '0' + nib : 'a' + nib - 10; + if (i == 0) + *t++ = '/'; + } + memcpy (t, suffix, suffix_len); + t[suffix_len] = '\0'; + + ret = backtrace_open (bd_filename, error_callback, data, &does_not_exist); + + backtrace_free (state, bd_filename, len, error_callback, data); + + /* gdb checks that the debuginfo file has the same build ID note. + That seems kind of pointless to me--why would it have the right + name but not the right build ID?--so skipping the check. */ + + return ret; +} + +/* Try to open a file whose name is PREFIX (length PREFIX_LEN) + concatenated with PREFIX2 (length PREFIX2_LEN) concatenated with + DEBUGLINK_NAME. Returns an open file descriptor, or -1. */ + +static int +elf_try_debugfile (struct backtrace_state *state, const char *prefix, + size_t prefix_len, const char *prefix2, size_t prefix2_len, + const char *debuglink_name, + backtrace_error_callback error_callback, void *data) +{ + size_t debuglink_len; + size_t try_len; + char *try; + int does_not_exist; + int ret; + + debuglink_len = strlen (debuglink_name); + try_len = prefix_len + prefix2_len + debuglink_len + 1; + try = backtrace_alloc (state, try_len, error_callback, data); + if (try == NULL) + return -1; + + memcpy (try, prefix, prefix_len); + memcpy (try + prefix_len, prefix2, prefix2_len); + memcpy (try + prefix_len + prefix2_len, debuglink_name, debuglink_len); + try[prefix_len + prefix2_len + debuglink_len] = '\0'; + + ret = backtrace_open (try, error_callback, data, &does_not_exist); + + backtrace_free (state, try, try_len, error_callback, data); + + return ret; +} + +/* Find a separate debug info file, using the debuglink section data + to find it. Returns an open file descriptor, or -1. */ + +static int +elf_find_debugfile_by_debuglink (struct backtrace_state *state, + const char *filename, + const char *debuglink_name, + backtrace_error_callback error_callback, + void *data) +{ + int ret; + char *alc; + size_t alc_len; + const char *slash; + int ddescriptor; + const char *prefix; + size_t prefix_len; + + /* Resolve symlinks in FILENAME. Since FILENAME is fairly likely to + be /proc/self/exe, symlinks are common. We don't try to resolve + the whole path name, just the base name. */ + ret = -1; + alc = NULL; + alc_len = 0; + while (elf_is_symlink (filename)) + { + char *new_buf; + size_t new_len; + + new_buf = elf_readlink (state, filename, error_callback, data, &new_len); + if (new_buf == NULL) + break; + + if (new_buf[0] == '/') + filename = new_buf; + else + { + slash = strrchr (filename, '/'); + if (slash == NULL) + filename = new_buf; + else + { + size_t clen; + char *c; + + slash++; + clen = slash - filename + strlen (new_buf) + 1; + c = backtrace_alloc (state, clen, error_callback, data); + if (c == NULL) + goto done; + + memcpy (c, filename, slash - filename); + memcpy (c + (slash - filename), new_buf, strlen (new_buf)); + c[slash - filename + strlen (new_buf)] = '\0'; + backtrace_free (state, new_buf, new_len, error_callback, data); + filename = c; + new_buf = c; + new_len = clen; + } + } + + if (alc != NULL) + backtrace_free (state, alc, alc_len, error_callback, data); + alc = new_buf; + alc_len = new_len; + } + + /* Look for DEBUGLINK_NAME in the same directory as FILENAME. */ + + slash = strrchr (filename, '/'); + if (slash == NULL) + { + prefix = ""; + prefix_len = 0; + } + else + { + slash++; + prefix = filename; + prefix_len = slash - filename; + } + + ddescriptor = elf_try_debugfile (state, prefix, prefix_len, "", 0, + debuglink_name, error_callback, data); + if (ddescriptor >= 0) + { + ret = ddescriptor; + goto done; + } + + /* Look for DEBUGLINK_NAME in a .debug subdirectory of FILENAME. */ + + ddescriptor = elf_try_debugfile (state, prefix, prefix_len, ".debug/", + strlen (".debug/"), debuglink_name, + error_callback, data); + if (ddescriptor >= 0) + { + ret = ddescriptor; + goto done; + } + + /* Look for DEBUGLINK_NAME in /usr/lib/debug. */ + + ddescriptor = elf_try_debugfile (state, "/usr/lib/debug/", + strlen ("/usr/lib/debug/"), prefix, + prefix_len, debuglink_name, + error_callback, data); + if (ddescriptor >= 0) + ret = ddescriptor; + + done: + if (alc != NULL && alc_len > 0) + backtrace_free (state, alc, alc_len, error_callback, data); + return ret; +} + +/* Open a separate debug info file, using the debuglink section data + to find it. Returns an open file descriptor, or -1. */ + +static int +elf_open_debugfile_by_debuglink (struct backtrace_state *state, + const char *filename, + const char *debuglink_name, + uint32_t debuglink_crc, + backtrace_error_callback error_callback, + void *data) +{ + int ddescriptor; + + ddescriptor = elf_find_debugfile_by_debuglink (state, filename, + debuglink_name, + error_callback, data); + if (ddescriptor < 0) + return -1; + + if (debuglink_crc != 0) + { + uint32_t got_crc; + + got_crc = elf_crc32_file (state, ddescriptor, error_callback, data); + if (got_crc != debuglink_crc) + { + backtrace_close (ddescriptor, error_callback, data); + return -1; + } + } + + return ddescriptor; +} + +/* A function useful for setting a breakpoint for an inflation failure + when this code is compiled with -g. */ + +static void +elf_uncompress_failed(void) +{ +} + +/* *PVAL is the current value being read from the stream, and *PBITS + is the number of valid bits. Ensure that *PVAL holds at least 15 + bits by reading additional bits from *PPIN, up to PINEND, as + needed. Updates *PPIN, *PVAL and *PBITS. Returns 1 on success, 0 + on error. */ + +static int +elf_zlib_fetch (const unsigned char **ppin, const unsigned char *pinend, + uint64_t *pval, unsigned int *pbits) +{ + unsigned int bits; + const unsigned char *pin; + uint64_t val; + uint32_t next; + + bits = *pbits; + if (bits >= 15) + return 1; + pin = *ppin; + val = *pval; + + if (unlikely (pinend - pin < 4)) + { + elf_uncompress_failed (); + return 0; + } + +#if defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) \ + && defined(__ORDER_BIG_ENDIAN__) \ + && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ \ + || __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) + /* We've ensured that PIN is aligned. */ + next = *(const uint32_t *)pin; + +#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ + next = __builtin_bswap32 (next); +#endif +#else + next = pin[0] | (pin[1] << 8) | (pin[2] << 16) | (pin[3] << 24); +#endif + + val |= (uint64_t)next << bits; + bits += 32; + pin += 4; + + /* We will need the next four bytes soon. */ + __builtin_prefetch (pin, 0, 0); + + *ppin = pin; + *pval = val; + *pbits = bits; + return 1; +} + +/* Huffman code tables, like the rest of the zlib format, are defined + by RFC 1951. We store a Huffman code table as a series of tables + stored sequentially in memory. Each entry in a table is 16 bits. + The first, main, table has 256 entries. It is followed by a set of + secondary tables of length 2 to 128 entries. The maximum length of + a code sequence in the deflate format is 15 bits, so that is all we + need. Each secondary table has an index, which is the offset of + the table in the overall memory storage. + + The deflate format says that all codes of a given bit length are + lexicographically consecutive. Perhaps we could have 130 values + that require a 15-bit code, perhaps requiring three secondary + tables of size 128. I don't know if this is actually possible, but + it suggests that the maximum size required for secondary tables is + 3 * 128 + 3 * 64 ... == 768. The zlib enough program reports 660 + as the maximum. We permit 768, since in addition to the 256 for + the primary table, with two bytes per entry, and with the two + tables we need, that gives us a page. + + A single table entry needs to store a value or (for the main table + only) the index and size of a secondary table. Values range from 0 + to 285, inclusive. Secondary table indexes, per above, range from + 0 to 510. For a value we need to store the number of bits we need + to determine that value (one value may appear multiple times in the + table), which is 1 to 8. For a secondary table we need to store + the number of bits used to index into the table, which is 1 to 7. + And of course we need 1 bit to decide whether we have a value or a + secondary table index. So each entry needs 9 bits for value/table + index, 3 bits for size, 1 bit what it is. For simplicity we use 16 + bits per entry. */ + +/* Number of entries we allocate to for one code table. We get a page + for the two code tables we need. */ + +#define HUFFMAN_TABLE_SIZE (1024) + +/* Bit masks and shifts for the values in the table. */ + +#define HUFFMAN_VALUE_MASK 0x01ff +#define HUFFMAN_BITS_SHIFT 9 +#define HUFFMAN_BITS_MASK 0x7 +#define HUFFMAN_SECONDARY_SHIFT 12 + +/* For working memory while inflating we need two code tables, we need + an array of code lengths (max value 15, so we use unsigned char), + and an array of unsigned shorts used while building a table. The + latter two arrays must be large enough to hold the maximum number + of code lengths, which RFC 1951 defines as 286 + 30. */ + +#define ZDEBUG_TABLE_SIZE \ + (2 * HUFFMAN_TABLE_SIZE * sizeof (uint16_t) \ + + (286 + 30) * sizeof (uint16_t) \ + + (286 + 30) * sizeof (unsigned char)) + +#define ZDEBUG_TABLE_CODELEN_OFFSET \ + (2 * HUFFMAN_TABLE_SIZE * sizeof (uint16_t) \ + + (286 + 30) * sizeof (uint16_t)) + +#define ZDEBUG_TABLE_WORK_OFFSET \ + (2 * HUFFMAN_TABLE_SIZE * sizeof (uint16_t)) + +#ifdef BACKTRACE_GENERATE_FIXED_HUFFMAN_TABLE + +/* Used by the main function that generates the fixed table to learn + the table size. */ +static size_t final_next_secondary; + +#endif + +/* Build a Huffman code table from an array of lengths in CODES of + length CODES_LEN. The table is stored into *TABLE. ZDEBUG_TABLE + is the same as for elf_zlib_inflate, used to find some work space. + Returns 1 on success, 0 on error. */ + +static int +elf_zlib_inflate_table (unsigned char *codes, size_t codes_len, + uint16_t *zdebug_table, uint16_t *table) +{ + uint16_t count[16]; + uint16_t start[16]; + uint16_t prev[16]; + uint16_t firstcode[7]; + uint16_t *next; + size_t i; + size_t j; + unsigned int code; + size_t next_secondary; + + /* Count the number of code of each length. Set NEXT[val] to be the + next value after VAL with the same bit length. */ + + next = (uint16_t *) (((unsigned char *) zdebug_table) + + ZDEBUG_TABLE_WORK_OFFSET); + + memset (&count[0], 0, 16 * sizeof (uint16_t)); + for (i = 0; i < codes_len; ++i) + { + if (unlikely (codes[i] >= 16)) + { + elf_uncompress_failed (); + return 0; + } + + if (count[codes[i]] == 0) + { + start[codes[i]] = i; + prev[codes[i]] = i; + } + else + { + next[prev[codes[i]]] = i; + prev[codes[i]] = i; + } + + ++count[codes[i]]; + } + + /* For each length, fill in the table for the codes of that + length. */ + + memset (table, 0, HUFFMAN_TABLE_SIZE * sizeof (uint16_t)); + + /* Handle the values that do not require a secondary table. */ + + code = 0; + for (j = 1; j <= 8; ++j) + { + unsigned int jcnt; + unsigned int val; + + jcnt = count[j]; + if (jcnt == 0) + continue; + + if (unlikely (jcnt > (1U << j))) + { + elf_uncompress_failed (); + return 0; + } + + /* There are JCNT values that have this length, the values + starting from START[j] continuing through NEXT[VAL]. Those + values are assigned consecutive values starting at CODE. */ + + val = start[j]; + for (i = 0; i < jcnt; ++i) + { + uint16_t tval; + size_t ind; + unsigned int incr; + + /* In the compressed bit stream, the value VAL is encoded as + J bits with the value C. */ + + if (unlikely ((val & ~HUFFMAN_VALUE_MASK) != 0)) + { + elf_uncompress_failed (); + return 0; + } + + tval = val | ((j - 1) << HUFFMAN_BITS_SHIFT); + + /* The table lookup uses 8 bits. If J is less than 8, we + don't know what the other bits will be. We need to fill + in all possibilities in the table. Since the Huffman + code is unambiguous, those entries can't be used for any + other code. */ + + for (ind = code; ind < 0x100; ind += 1 << j) + { + if (unlikely (table[ind] != 0)) + { + elf_uncompress_failed (); + return 0; + } + table[ind] = tval; + } + + /* Advance to the next value with this length. */ + if (i + 1 < jcnt) + val = next[val]; + + /* The Huffman codes are stored in the bitstream with the + most significant bit first, as is required to make them + unambiguous. The effect is that when we read them from + the bitstream we see the bit sequence in reverse order: + the most significant bit of the Huffman code is the least + significant bit of the value we read from the bitstream. + That means that to make our table lookups work, we need + to reverse the bits of CODE. Since reversing bits is + tedious and in general requires using a table, we instead + increment CODE in reverse order. That is, if the number + of bits we are currently using, here named J, is 3, we + count as 000, 100, 010, 110, 001, 101, 011, 111, which is + to say the numbers from 0 to 7 but with the bits + reversed. Going to more bits, aka incrementing J, + effectively just adds more zero bits as the beginning, + and as such does not change the numeric value of CODE. + + To increment CODE of length J in reverse order, find the + most significant zero bit and set it to one while + clearing all higher bits. In other words, add 1 modulo + 2^J, only reversed. */ + + incr = 1U << (j - 1); + while ((code & incr) != 0) + incr >>= 1; + if (incr == 0) + code = 0; + else + { + code &= incr - 1; + code += incr; + } + } + } + + /* Handle the values that require a secondary table. */ + + /* Set FIRSTCODE, the number at which the codes start, for each + length. */ + + for (j = 9; j < 16; j++) + { + unsigned int jcnt; + unsigned int k; + + jcnt = count[j]; + if (jcnt == 0) + continue; + + /* There are JCNT values that have this length, the values + starting from START[j]. Those values are assigned + consecutive values starting at CODE. */ + + firstcode[j - 9] = code; + + /* Reverse add JCNT to CODE modulo 2^J. */ + for (k = 0; k < j; ++k) + { + if ((jcnt & (1U << k)) != 0) + { + unsigned int m; + unsigned int bit; + + bit = 1U << (j - k - 1); + for (m = 0; m < j - k; ++m, bit >>= 1) + { + if ((code & bit) == 0) + { + code += bit; + break; + } + code &= ~bit; + } + jcnt &= ~(1U << k); + } + } + if (unlikely (jcnt != 0)) + { + elf_uncompress_failed (); + return 0; + } + } + + /* For J from 9 to 15, inclusive, we store COUNT[J] consecutive + values starting at START[J] with consecutive codes starting at + FIRSTCODE[J - 9]. In the primary table we need to point to the + secondary table, and the secondary table will be indexed by J - 9 + bits. We count down from 15 so that we install the larger + secondary tables first, as the smaller ones may be embedded in + the larger ones. */ + + next_secondary = 0; /* Index of next secondary table (after primary). */ + for (j = 15; j >= 9; j--) + { + unsigned int jcnt; + unsigned int val; + size_t primary; /* Current primary index. */ + size_t secondary; /* Offset to current secondary table. */ + size_t secondary_bits; /* Bit size of current secondary table. */ + + jcnt = count[j]; + if (jcnt == 0) + continue; + + val = start[j]; + code = firstcode[j - 9]; + primary = 0x100; + secondary = 0; + secondary_bits = 0; + for (i = 0; i < jcnt; ++i) + { + uint16_t tval; + size_t ind; + unsigned int incr; + + if ((code & 0xff) != primary) + { + uint16_t tprimary; + + /* Fill in a new primary table entry. */ + + primary = code & 0xff; + + tprimary = table[primary]; + if (tprimary == 0) + { + /* Start a new secondary table. */ + + if (unlikely ((next_secondary & HUFFMAN_VALUE_MASK) + != next_secondary)) + { + elf_uncompress_failed (); + return 0; + } + + secondary = next_secondary; + secondary_bits = j - 8; + next_secondary += 1 << secondary_bits; + table[primary] = (secondary + + ((j - 8) << HUFFMAN_BITS_SHIFT) + + (1U << HUFFMAN_SECONDARY_SHIFT)); + } + else + { + /* There is an existing entry. It had better be a + secondary table with enough bits. */ + if (unlikely ((tprimary & (1U << HUFFMAN_SECONDARY_SHIFT)) + == 0)) + { + elf_uncompress_failed (); + return 0; + } + secondary = tprimary & HUFFMAN_VALUE_MASK; + secondary_bits = ((tprimary >> HUFFMAN_BITS_SHIFT) + & HUFFMAN_BITS_MASK); + if (unlikely (secondary_bits < j - 8)) + { + elf_uncompress_failed (); + return 0; + } + } + } + + /* Fill in secondary table entries. */ + + tval = val | ((j - 8) << HUFFMAN_BITS_SHIFT); + + for (ind = code >> 8; + ind < (1U << secondary_bits); + ind += 1U << (j - 8)) + { + if (unlikely (table[secondary + 0x100 + ind] != 0)) + { + elf_uncompress_failed (); + return 0; + } + table[secondary + 0x100 + ind] = tval; + } + + if (i + 1 < jcnt) + val = next[val]; + + incr = 1U << (j - 1); + while ((code & incr) != 0) + incr >>= 1; + if (incr == 0) + code = 0; + else + { + code &= incr - 1; + code += incr; + } + } + } + +#ifdef BACKTRACE_GENERATE_FIXED_HUFFMAN_TABLE + final_next_secondary = next_secondary; +#endif + + return 1; +} + +#ifdef BACKTRACE_GENERATE_FIXED_HUFFMAN_TABLE + +/* Used to generate the fixed Huffman table for block type 1. */ + +#include <stdio.h> + +static uint16_t table[ZDEBUG_TABLE_SIZE]; +static unsigned char codes[288]; + +int +main () +{ + size_t i; + + for (i = 0; i <= 143; ++i) + codes[i] = 8; + for (i = 144; i <= 255; ++i) + codes[i] = 9; + for (i = 256; i <= 279; ++i) + codes[i] = 7; + for (i = 280; i <= 287; ++i) + codes[i] = 8; + if (!elf_zlib_inflate_table (&codes[0], 288, &table[0], &table[0])) + { + fprintf (stderr, "elf_zlib_inflate_table failed\n"); + exit (EXIT_FAILURE); + } + + printf ("static const uint16_t elf_zlib_default_table[%#zx] =\n", + final_next_secondary + 0x100); + printf ("{\n"); + for (i = 0; i < final_next_secondary + 0x100; i += 8) + { + size_t j; + + printf (" "); + for (j = i; j < final_next_secondary + 0x100 && j < i + 8; ++j) + printf (" %#x,", table[j]); + printf ("\n"); + } + printf ("};\n"); + printf ("\n"); + + for (i = 0; i < 32; ++i) + codes[i] = 5; + if (!elf_zlib_inflate_table (&codes[0], 32, &table[0], &table[0])) + { + fprintf (stderr, "elf_zlib_inflate_table failed\n"); + exit (EXIT_FAILURE); + } + + printf ("static const uint16_t elf_zlib_default_dist_table[%#zx] =\n", + final_next_secondary + 0x100); + printf ("{\n"); + for (i = 0; i < final_next_secondary + 0x100; i += 8) + { + size_t j; + + printf (" "); + for (j = i; j < final_next_secondary + 0x100 && j < i + 8; ++j) + printf (" %#x,", table[j]); + printf ("\n"); + } + printf ("};\n"); + + return 0; +} + +#endif + +/* The fixed tables generated by the #ifdef'ed out main function + above. */ + +static const uint16_t elf_zlib_default_table[0x170] = +{ + 0xd00, 0xe50, 0xe10, 0xf18, 0xd10, 0xe70, 0xe30, 0x1230, + 0xd08, 0xe60, 0xe20, 0x1210, 0xe00, 0xe80, 0xe40, 0x1250, + 0xd04, 0xe58, 0xe18, 0x1200, 0xd14, 0xe78, 0xe38, 0x1240, + 0xd0c, 0xe68, 0xe28, 0x1220, 0xe08, 0xe88, 0xe48, 0x1260, + 0xd02, 0xe54, 0xe14, 0xf1c, 0xd12, 0xe74, 0xe34, 0x1238, + 0xd0a, 0xe64, 0xe24, 0x1218, 0xe04, 0xe84, 0xe44, 0x1258, + 0xd06, 0xe5c, 0xe1c, 0x1208, 0xd16, 0xe7c, 0xe3c, 0x1248, + 0xd0e, 0xe6c, 0xe2c, 0x1228, 0xe0c, 0xe8c, 0xe4c, 0x1268, + 0xd01, 0xe52, 0xe12, 0xf1a, 0xd11, 0xe72, 0xe32, 0x1234, + 0xd09, 0xe62, 0xe22, 0x1214, 0xe02, 0xe82, 0xe42, 0x1254, + 0xd05, 0xe5a, 0xe1a, 0x1204, 0xd15, 0xe7a, 0xe3a, 0x1244, + 0xd0d, 0xe6a, 0xe2a, 0x1224, 0xe0a, 0xe8a, 0xe4a, 0x1264, + 0xd03, 0xe56, 0xe16, 0xf1e, 0xd13, 0xe76, 0xe36, 0x123c, + 0xd0b, 0xe66, 0xe26, 0x121c, 0xe06, 0xe86, 0xe46, 0x125c, + 0xd07, 0xe5e, 0xe1e, 0x120c, 0xd17, 0xe7e, 0xe3e, 0x124c, + 0xd0f, 0xe6e, 0xe2e, 0x122c, 0xe0e, 0xe8e, 0xe4e, 0x126c, + 0xd00, 0xe51, 0xe11, 0xf19, 0xd10, 0xe71, 0xe31, 0x1232, + 0xd08, 0xe61, 0xe21, 0x1212, 0xe01, 0xe81, 0xe41, 0x1252, + 0xd04, 0xe59, 0xe19, 0x1202, 0xd14, 0xe79, 0xe39, 0x1242, + 0xd0c, 0xe69, 0xe29, 0x1222, 0xe09, 0xe89, 0xe49, 0x1262, + 0xd02, 0xe55, 0xe15, 0xf1d, 0xd12, 0xe75, 0xe35, 0x123a, + 0xd0a, 0xe65, 0xe25, 0x121a, 0xe05, 0xe85, 0xe45, 0x125a, + 0xd06, 0xe5d, 0xe1d, 0x120a, 0xd16, 0xe7d, 0xe3d, 0x124a, + 0xd0e, 0xe6d, 0xe2d, 0x122a, 0xe0d, 0xe8d, 0xe4d, 0x126a, + 0xd01, 0xe53, 0xe13, 0xf1b, 0xd11, 0xe73, 0xe33, 0x1236, + 0xd09, 0xe63, 0xe23, 0x1216, 0xe03, 0xe83, 0xe43, 0x1256, + 0xd05, 0xe5b, 0xe1b, 0x1206, 0xd15, 0xe7b, 0xe3b, 0x1246, + 0xd0d, 0xe6b, 0xe2b, 0x1226, 0xe0b, 0xe8b, 0xe4b, 0x1266, + 0xd03, 0xe57, 0xe17, 0xf1f, 0xd13, 0xe77, 0xe37, 0x123e, + 0xd0b, 0xe67, 0xe27, 0x121e, 0xe07, 0xe87, 0xe47, 0x125e, + 0xd07, 0xe5f, 0xe1f, 0x120e, 0xd17, 0xe7f, 0xe3f, 0x124e, + 0xd0f, 0xe6f, 0xe2f, 0x122e, 0xe0f, 0xe8f, 0xe4f, 0x126e, + 0x290, 0x291, 0x292, 0x293, 0x294, 0x295, 0x296, 0x297, + 0x298, 0x299, 0x29a, 0x29b, 0x29c, 0x29d, 0x29e, 0x29f, + 0x2a0, 0x2a1, 0x2a2, 0x2a3, 0x2a4, 0x2a5, 0x2a6, 0x2a7, + 0x2a8, 0x2a9, 0x2aa, 0x2ab, 0x2ac, 0x2ad, 0x2ae, 0x2af, + 0x2b0, 0x2b1, 0x2b2, 0x2b3, 0x2b4, 0x2b5, 0x2b6, 0x2b7, + 0x2b8, 0x2b9, 0x2ba, 0x2bb, 0x2bc, 0x2bd, 0x2be, 0x2bf, + 0x2c0, 0x2c1, 0x2c2, 0x2c3, 0x2c4, 0x2c5, 0x2c6, 0x2c7, + 0x2c8, 0x2c9, 0x2ca, 0x2cb, 0x2cc, 0x2cd, 0x2ce, 0x2cf, + 0x2d0, 0x2d1, 0x2d2, 0x2d3, 0x2d4, 0x2d5, 0x2d6, 0x2d7, + 0x2d8, 0x2d9, 0x2da, 0x2db, 0x2dc, 0x2dd, 0x2de, 0x2df, + 0x2e0, 0x2e1, 0x2e2, 0x2e3, 0x2e4, 0x2e5, 0x2e6, 0x2e7, + 0x2e8, 0x2e9, 0x2ea, 0x2eb, 0x2ec, 0x2ed, 0x2ee, 0x2ef, + 0x2f0, 0x2f1, 0x2f2, 0x2f3, 0x2f4, 0x2f5, 0x2f6, 0x2f7, + 0x2f8, 0x2f9, 0x2fa, 0x2fb, 0x2fc, 0x2fd, 0x2fe, 0x2ff, +}; + +static const uint16_t elf_zlib_default_dist_table[0x100] = +{ + 0x800, 0x810, 0x808, 0x818, 0x804, 0x814, 0x80c, 0x81c, + 0x802, 0x812, 0x80a, 0x81a, 0x806, 0x816, 0x80e, 0x81e, + 0x801, 0x811, 0x809, 0x819, 0x805, 0x815, 0x80d, 0x81d, + 0x803, 0x813, 0x80b, 0x81b, 0x807, 0x817, 0x80f, 0x81f, + 0x800, 0x810, 0x808, 0x818, 0x804, 0x814, 0x80c, 0x81c, + 0x802, 0x812, 0x80a, 0x81a, 0x806, 0x816, 0x80e, 0x81e, + 0x801, 0x811, 0x809, 0x819, 0x805, 0x815, 0x80d, 0x81d, + 0x803, 0x813, 0x80b, 0x81b, 0x807, 0x817, 0x80f, 0x81f, + 0x800, 0x810, 0x808, 0x818, 0x804, 0x814, 0x80c, 0x81c, + 0x802, 0x812, 0x80a, 0x81a, 0x806, 0x816, 0x80e, 0x81e, + 0x801, 0x811, 0x809, 0x819, 0x805, 0x815, 0x80d, 0x81d, + 0x803, 0x813, 0x80b, 0x81b, 0x807, 0x817, 0x80f, 0x81f, + 0x800, 0x810, 0x808, 0x818, 0x804, 0x814, 0x80c, 0x81c, + 0x802, 0x812, 0x80a, 0x81a, 0x806, 0x816, 0x80e, 0x81e, + 0x801, 0x811, 0x809, 0x819, 0x805, 0x815, 0x80d, 0x81d, + 0x803, 0x813, 0x80b, 0x81b, 0x807, 0x817, 0x80f, 0x81f, + 0x800, 0x810, 0x808, 0x818, 0x804, 0x814, 0x80c, 0x81c, + 0x802, 0x812, 0x80a, 0x81a, 0x806, 0x816, 0x80e, 0x81e, + 0x801, 0x811, 0x809, 0x819, 0x805, 0x815, 0x80d, 0x81d, + 0x803, 0x813, 0x80b, 0x81b, 0x807, 0x817, 0x80f, 0x81f, + 0x800, 0x810, 0x808, 0x818, 0x804, 0x814, 0x80c, 0x81c, + 0x802, 0x812, 0x80a, 0x81a, 0x806, 0x816, 0x80e, 0x81e, + 0x801, 0x811, 0x809, 0x819, 0x805, 0x815, 0x80d, 0x81d, + 0x803, 0x813, 0x80b, 0x81b, 0x807, 0x817, 0x80f, 0x81f, + 0x800, 0x810, 0x808, 0x818, 0x804, 0x814, 0x80c, 0x81c, + 0x802, 0x812, 0x80a, 0x81a, 0x806, 0x816, 0x80e, 0x81e, + 0x801, 0x811, 0x809, 0x819, 0x805, 0x815, 0x80d, 0x81d, + 0x803, 0x813, 0x80b, 0x81b, 0x807, 0x817, 0x80f, 0x81f, + 0x800, 0x810, 0x808, 0x818, 0x804, 0x814, 0x80c, 0x81c, + 0x802, 0x812, 0x80a, 0x81a, 0x806, 0x816, 0x80e, 0x81e, + 0x801, 0x811, 0x809, 0x819, 0x805, 0x815, 0x80d, 0x81d, + 0x803, 0x813, 0x80b, 0x81b, 0x807, 0x817, 0x80f, 0x81f, +}; + +/* Inflate a zlib stream from PIN/SIN to POUT/SOUT. Return 1 on + success, 0 on some error parsing the stream. */ + +static int +elf_zlib_inflate (const unsigned char *pin, size_t sin, uint16_t *zdebug_table, + unsigned char *pout, size_t sout) +{ + unsigned char *porigout; + const unsigned char *pinend; + unsigned char *poutend; + + /* We can apparently see multiple zlib streams concatenated + together, so keep going as long as there is something to read. + The last 4 bytes are the checksum. */ + porigout = pout; + pinend = pin + sin; + poutend = pout + sout; + while ((pinend - pin) > 4) + { + uint64_t val; + unsigned int bits; + int last; + + /* Read the two byte zlib header. */ + + if (unlikely ((pin[0] & 0xf) != 8)) /* 8 is zlib encoding. */ + { + /* Unknown compression method. */ + elf_uncompress_failed (); + return 0; + } + if (unlikely ((pin[0] >> 4) > 7)) + { + /* Window size too large. Other than this check, we don't + care about the window size. */ + elf_uncompress_failed (); + return 0; + } + if (unlikely ((pin[1] & 0x20) != 0)) + { + /* Stream expects a predefined dictionary, but we have no + dictionary. */ + elf_uncompress_failed (); + return 0; + } + val = (pin[0] << 8) | pin[1]; + if (unlikely (val % 31 != 0)) + { + /* Header check failure. */ + elf_uncompress_failed (); + return 0; + } + pin += 2; + + /* Align PIN to a 32-bit boundary. */ + + val = 0; + bits = 0; + while ((((uintptr_t) pin) & 3) != 0) + { + val |= (uint64_t)*pin << bits; + bits += 8; + ++pin; + } + + /* Read blocks until one is marked last. */ + + last = 0; + + while (!last) + { + unsigned int type; + const uint16_t *tlit; + const uint16_t *tdist; + + if (!elf_zlib_fetch (&pin, pinend, &val, &bits)) + return 0; + + last = val & 1; + type = (val >> 1) & 3; + val >>= 3; + bits -= 3; + + if (unlikely (type == 3)) + { + /* Invalid block type. */ + elf_uncompress_failed (); + return 0; + } + + if (type == 0) + { + uint16_t len; + uint16_t lenc; + + /* An uncompressed block. */ + + /* If we've read ahead more than a byte, back up. */ + while (bits > 8) + { + --pin; + bits -= 8; + } + + val = 0; + bits = 0; + if (unlikely ((pinend - pin) < 4)) + { + /* Missing length. */ + elf_uncompress_failed (); + return 0; + } + len = pin[0] | (pin[1] << 8); + lenc = pin[2] | (pin[3] << 8); + pin += 4; + lenc = ~lenc; + if (unlikely (len != lenc)) + { + /* Corrupt data. */ + elf_uncompress_failed (); + return 0; + } + if (unlikely (len > (unsigned int) (pinend - pin) + || len > (unsigned int) (poutend - pout))) + { + /* Not enough space in buffers. */ + elf_uncompress_failed (); + return 0; + } + memcpy (pout, pin, len); + pout += len; + pin += len; + + /* Align PIN. */ + while ((((uintptr_t) pin) & 3) != 0) + { + val |= (uint64_t)*pin << bits; + bits += 8; + ++pin; + } + + /* Go around to read the next block. */ + continue; + } + + if (type == 1) + { + tlit = elf_zlib_default_table; + tdist = elf_zlib_default_dist_table; + } + else + { + unsigned int nlit; + unsigned int ndist; + unsigned int nclen; + unsigned char codebits[19]; + unsigned char *plenbase; + unsigned char *plen; + unsigned char *plenend; + + /* Read a Huffman encoding table. The various magic + numbers here are from RFC 1951. */ + + if (!elf_zlib_fetch (&pin, pinend, &val, &bits)) + return 0; + + nlit = (val & 0x1f) + 257; + val >>= 5; + ndist = (val & 0x1f) + 1; + val >>= 5; + nclen = (val & 0xf) + 4; + val >>= 4; + bits -= 14; + if (unlikely (nlit > 286 || ndist > 30)) + { + /* Values out of range. */ + elf_uncompress_failed (); + return 0; + } + + /* Read and build the table used to compress the + literal, length, and distance codes. */ + + memset(&codebits[0], 0, 19); + + /* There are always at least 4 elements in the + table. */ + + if (!elf_zlib_fetch (&pin, pinend, &val, &bits)) + return 0; + + codebits[16] = val & 7; + codebits[17] = (val >> 3) & 7; + codebits[18] = (val >> 6) & 7; + codebits[0] = (val >> 9) & 7; + val >>= 12; + bits -= 12; + + if (nclen == 4) + goto codebitsdone; + + codebits[8] = val & 7; + val >>= 3; + bits -= 3; + + if (nclen == 5) + goto codebitsdone; + + if (!elf_zlib_fetch (&pin, pinend, &val, &bits)) + return 0; + + codebits[7] = val & 7; + val >>= 3; + bits -= 3; + + if (nclen == 6) + goto codebitsdone; + + codebits[9] = val & 7; + val >>= 3; + bits -= 3; + + if (nclen == 7) + goto codebitsdone; + + codebits[6] = val & 7; + val >>= 3; + bits -= 3; + + if (nclen == 8) + goto codebitsdone; + + codebits[10] = val & 7; + val >>= 3; + bits -= 3; + + if (nclen == 9) + goto codebitsdone; + + codebits[5] = val & 7; + val >>= 3; + bits -= 3; + + if (nclen == 10) + goto codebitsdone; + + if (!elf_zlib_fetch (&pin, pinend, &val, &bits)) + return 0; + + codebits[11] = val & 7; + val >>= 3; + bits -= 3; + + if (nclen == 11) + goto codebitsdone; + + codebits[4] = val & 7; + val >>= 3; + bits -= 3; + + if (nclen == 12) + goto codebitsdone; + + codebits[12] = val & 7; + val >>= 3; + bits -= 3; + + if (nclen == 13) + goto codebitsdone; + + codebits[3] = val & 7; + val >>= 3; + bits -= 3; + + if (nclen == 14) + goto codebitsdone; + + codebits[13] = val & 7; + val >>= 3; + bits -= 3; + + if (nclen == 15) + goto codebitsdone; + + if (!elf_zlib_fetch (&pin, pinend, &val, &bits)) + return 0; + + codebits[2] = val & 7; + val >>= 3; + bits -= 3; + + if (nclen == 16) + goto codebitsdone; + + codebits[14] = val & 7; + val >>= 3; + bits -= 3; + + if (nclen == 17) + goto codebitsdone; + + codebits[1] = val & 7; + val >>= 3; + bits -= 3; + + if (nclen == 18) + goto codebitsdone; + + codebits[15] = val & 7; + val >>= 3; + bits -= 3; + + codebitsdone: + + if (!elf_zlib_inflate_table (codebits, 19, zdebug_table, + zdebug_table)) + return 0; + + /* Read the compressed bit lengths of the literal, + length, and distance codes. We have allocated space + at the end of zdebug_table to hold them. */ + + plenbase = (((unsigned char *) zdebug_table) + + ZDEBUG_TABLE_CODELEN_OFFSET); + plen = plenbase; + plenend = plen + nlit + ndist; + while (plen < plenend) + { + uint16_t t; + unsigned int b; + uint16_t v; + + if (!elf_zlib_fetch (&pin, pinend, &val, &bits)) + return 0; + + t = zdebug_table[val & 0xff]; + + /* The compression here uses bit lengths up to 7, so + a secondary table is never necessary. */ + if (unlikely ((t & (1U << HUFFMAN_SECONDARY_SHIFT)) != 0)) + { + elf_uncompress_failed (); + return 0; + } + + b = (t >> HUFFMAN_BITS_SHIFT) & HUFFMAN_BITS_MASK; + val >>= b + 1; + bits -= b + 1; + + v = t & HUFFMAN_VALUE_MASK; + if (v < 16) + *plen++ = v; + else if (v == 16) + { + unsigned int c; + unsigned int prev; + + /* Copy previous entry 3 to 6 times. */ + + if (unlikely (plen == plenbase)) + { + elf_uncompress_failed (); + return 0; + } + + /* We used up to 7 bits since the last + elf_zlib_fetch, so we have at least 8 bits + available here. */ + + c = 3 + (val & 0x3); + val >>= 2; + bits -= 2; + if (unlikely ((unsigned int) (plenend - plen) < c)) + { + elf_uncompress_failed (); + return 0; + } + + prev = plen[-1]; + switch (c) + { + case 6: + *plen++ = prev; + ATTRIBUTE_FALLTHROUGH; + case 5: + *plen++ = prev; + ATTRIBUTE_FALLTHROUGH; + case 4: + *plen++ = prev; + } + *plen++ = prev; + *plen++ = prev; + *plen++ = prev; + } + else if (v == 17) + { + unsigned int c; + + /* Store zero 3 to 10 times. */ + + /* We used up to 7 bits since the last + elf_zlib_fetch, so we have at least 8 bits + available here. */ + + c = 3 + (val & 0x7); + val >>= 3; + bits -= 3; + if (unlikely ((unsigned int) (plenend - plen) < c)) + { + elf_uncompress_failed (); + return 0; + } + + switch (c) + { + case 10: + *plen++ = 0; + ATTRIBUTE_FALLTHROUGH; + case 9: + *plen++ = 0; + ATTRIBUTE_FALLTHROUGH; + case 8: + *plen++ = 0; + ATTRIBUTE_FALLTHROUGH; + case 7: + *plen++ = 0; + ATTRIBUTE_FALLTHROUGH; + case 6: + *plen++ = 0; + ATTRIBUTE_FALLTHROUGH; + case 5: + *plen++ = 0; + ATTRIBUTE_FALLTHROUGH; + case 4: + *plen++ = 0; + } + *plen++ = 0; + *plen++ = 0; + *plen++ = 0; + } + else if (v == 18) + { + unsigned int c; + + /* Store zero 11 to 138 times. */ + + /* We used up to 7 bits since the last + elf_zlib_fetch, so we have at least 8 bits + available here. */ + + c = 11 + (val & 0x7f); + val >>= 7; + bits -= 7; + if (unlikely ((unsigned int) (plenend - plen) < c)) + { + elf_uncompress_failed (); + return 0; + } + + memset (plen, 0, c); + plen += c; + } + else + { + elf_uncompress_failed (); + return 0; + } + } + + /* Make sure that the stop code can appear. */ + + plen = plenbase; + if (unlikely (plen[256] == 0)) + { + elf_uncompress_failed (); + return 0; + } + + /* Build the decompression tables. */ + + if (!elf_zlib_inflate_table (plen, nlit, zdebug_table, + zdebug_table)) + return 0; + if (!elf_zlib_inflate_table (plen + nlit, ndist, zdebug_table, + zdebug_table + HUFFMAN_TABLE_SIZE)) + return 0; + tlit = zdebug_table; + tdist = zdebug_table + HUFFMAN_TABLE_SIZE; + } + + /* Inflate values until the end of the block. This is the + main loop of the inflation code. */ + + while (1) + { + uint16_t t; + unsigned int b; + uint16_t v; + unsigned int lit; + + if (!elf_zlib_fetch (&pin, pinend, &val, &bits)) + return 0; + + t = tlit[val & 0xff]; + b = (t >> HUFFMAN_BITS_SHIFT) & HUFFMAN_BITS_MASK; + v = t & HUFFMAN_VALUE_MASK; + + if ((t & (1U << HUFFMAN_SECONDARY_SHIFT)) == 0) + { + lit = v; + val >>= b + 1; + bits -= b + 1; + } + else + { + t = tlit[v + 0x100 + ((val >> 8) & ((1U << b) - 1))]; + b = (t >> HUFFMAN_BITS_SHIFT) & HUFFMAN_BITS_MASK; + lit = t & HUFFMAN_VALUE_MASK; + val >>= b + 8; + bits -= b + 8; + } + + if (lit < 256) + { + if (unlikely (pout == poutend)) + { + elf_uncompress_failed (); + return 0; + } + + *pout++ = lit; + + /* We will need to write the next byte soon. We ask + for high temporal locality because we will write + to the whole cache line soon. */ + __builtin_prefetch (pout, 1, 3); + } + else if (lit == 256) + { + /* The end of the block. */ + break; + } + else + { + unsigned int dist; + unsigned int len; + + /* Convert lit into a length. */ + + if (lit < 265) + len = lit - 257 + 3; + else if (lit == 285) + len = 258; + else if (unlikely (lit > 285)) + { + elf_uncompress_failed (); + return 0; + } + else + { + unsigned int extra; + + if (!elf_zlib_fetch (&pin, pinend, &val, &bits)) + return 0; + + /* This is an expression for the table of length + codes in RFC 1951 3.2.5. */ + lit -= 265; + extra = (lit >> 2) + 1; + len = (lit & 3) << extra; + len += 11; + len += ((1U << (extra - 1)) - 1) << 3; + len += val & ((1U << extra) - 1); + val >>= extra; + bits -= extra; + } + + if (!elf_zlib_fetch (&pin, pinend, &val, &bits)) + return 0; + + t = tdist[val & 0xff]; + b = (t >> HUFFMAN_BITS_SHIFT) & HUFFMAN_BITS_MASK; + v = t & HUFFMAN_VALUE_MASK; + + if ((t & (1U << HUFFMAN_SECONDARY_SHIFT)) == 0) + { + dist = v; + val >>= b + 1; + bits -= b + 1; + } + else + { + t = tdist[v + 0x100 + ((val >> 8) & ((1U << b) - 1))]; + b = (t >> HUFFMAN_BITS_SHIFT) & HUFFMAN_BITS_MASK; + dist = t & HUFFMAN_VALUE_MASK; + val >>= b + 8; + bits -= b + 8; + } + + /* Convert dist to a distance. */ + + if (dist == 0) + { + /* A distance of 1. A common case, meaning + repeat the last character LEN times. */ + + if (unlikely (pout == porigout)) + { + elf_uncompress_failed (); + return 0; + } + + if (unlikely ((unsigned int) (poutend - pout) < len)) + { + elf_uncompress_failed (); + return 0; + } + + memset (pout, pout[-1], len); + pout += len; + } + else if (unlikely (dist > 29)) + { + elf_uncompress_failed (); + return 0; + } + else + { + if (dist < 4) + dist = dist + 1; + else + { + unsigned int extra; + + if (!elf_zlib_fetch (&pin, pinend, &val, &bits)) + return 0; + + /* This is an expression for the table of + distance codes in RFC 1951 3.2.5. */ + dist -= 4; + extra = (dist >> 1) + 1; + dist = (dist & 1) << extra; + dist += 5; + dist += ((1U << (extra - 1)) - 1) << 2; + dist += val & ((1U << extra) - 1); + val >>= extra; + bits -= extra; + } + + /* Go back dist bytes, and copy len bytes from + there. */ + + if (unlikely ((unsigned int) (pout - porigout) < dist)) + { + elf_uncompress_failed (); + return 0; + } + + if (unlikely ((unsigned int) (poutend - pout) < len)) + { + elf_uncompress_failed (); + return 0; + } + + if (dist >= len) + { + memcpy (pout, pout - dist, len); + pout += len; + } + else + { + while (len > 0) + { + unsigned int copy; + + copy = len < dist ? len : dist; + memcpy (pout, pout - dist, copy); + len -= copy; + pout += copy; + } + } + } + } + } + } + } + + /* We should have filled the output buffer. */ + if (unlikely (pout != poutend)) + { + elf_uncompress_failed (); + return 0; + } + + return 1; +} + +/* Verify the zlib checksum. The checksum is in the 4 bytes at + CHECKBYTES, and the uncompressed data is at UNCOMPRESSED / + UNCOMPRESSED_SIZE. Returns 1 on success, 0 on failure. */ + +static int +elf_zlib_verify_checksum (const unsigned char *checkbytes, + const unsigned char *uncompressed, + size_t uncompressed_size) +{ + unsigned int i; + unsigned int cksum; + const unsigned char *p; + uint32_t s1; + uint32_t s2; + size_t hsz; + + cksum = 0; + for (i = 0; i < 4; i++) + cksum = (cksum << 8) | checkbytes[i]; + + s1 = 1; + s2 = 0; + + /* Minimize modulo operations. */ + + p = uncompressed; + hsz = uncompressed_size; + while (hsz >= 5552) + { + for (i = 0; i < 5552; i += 16) + { + /* Manually unroll loop 16 times. */ + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + } + hsz -= 5552; + s1 %= 65521; + s2 %= 65521; + } + + while (hsz >= 16) + { + /* Manually unroll loop 16 times. */ + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + s1 = s1 + *p++; + s2 = s2 + s1; + + hsz -= 16; + } + + for (i = 0; i < hsz; ++i) + { + s1 = s1 + *p++; + s2 = s2 + s1; + } + + s1 %= 65521; + s2 %= 65521; + + if (unlikely ((s2 << 16) + s1 != cksum)) + { + elf_uncompress_failed (); + return 0; + } + + return 1; +} + +/* Inflate a zlib stream from PIN/SIN to POUT/SOUT, and verify the + checksum. Return 1 on success, 0 on error. */ + +static int +elf_zlib_inflate_and_verify (const unsigned char *pin, size_t sin, + uint16_t *zdebug_table, unsigned char *pout, + size_t sout) +{ + if (!elf_zlib_inflate (pin, sin, zdebug_table, pout, sout)) + return 0; + if (!elf_zlib_verify_checksum (pin + sin - 4, pout, sout)) + return 0; + return 1; +} + +/* Uncompress the old compressed debug format, the one emitted by + --compress-debug-sections=zlib-gnu. The compressed data is in + COMPRESSED / COMPRESSED_SIZE, and the function writes to + *UNCOMPRESSED / *UNCOMPRESSED_SIZE. ZDEBUG_TABLE is work space to + hold Huffman tables. Returns 0 on error, 1 on successful + decompression or if something goes wrong. In general we try to + carry on, by returning 1, even if we can't decompress. */ + +static int +elf_uncompress_zdebug (struct backtrace_state *state, + const unsigned char *compressed, size_t compressed_size, + uint16_t *zdebug_table, + backtrace_error_callback error_callback, void *data, + unsigned char **uncompressed, size_t *uncompressed_size) +{ + size_t sz; + size_t i; + unsigned char *po; + + *uncompressed = NULL; + *uncompressed_size = 0; + + /* The format starts with the four bytes ZLIB, followed by the 8 + byte length of the uncompressed data in big-endian order, + followed by a zlib stream. */ + + if (compressed_size < 12 || memcmp (compressed, "ZLIB", 4) != 0) + return 1; + + sz = 0; + for (i = 0; i < 8; i++) + sz = (sz << 8) | compressed[i + 4]; + + if (*uncompressed != NULL && *uncompressed_size >= sz) + po = *uncompressed; + else + { + po = (unsigned char *) backtrace_alloc (state, sz, error_callback, data); + if (po == NULL) + return 0; + } + + if (!elf_zlib_inflate_and_verify (compressed + 12, compressed_size - 12, + zdebug_table, po, sz)) + return 1; + + *uncompressed = po; + *uncompressed_size = sz; + + return 1; +} + +/* Uncompress the new compressed debug format, the official standard + ELF approach emitted by --compress-debug-sections=zlib-gabi. The + compressed data is in COMPRESSED / COMPRESSED_SIZE, and the + function writes to *UNCOMPRESSED / *UNCOMPRESSED_SIZE. + ZDEBUG_TABLE is work space as for elf_uncompress_zdebug. Returns 0 + on error, 1 on successful decompression or if something goes wrong. + In general we try to carry on, by returning 1, even if we can't + decompress. */ + +static int +elf_uncompress_chdr (struct backtrace_state *state, + const unsigned char *compressed, size_t compressed_size, + uint16_t *zdebug_table, + backtrace_error_callback error_callback, void *data, + unsigned char **uncompressed, size_t *uncompressed_size) +{ + const b_elf_chdr *chdr; + unsigned char *po; + + *uncompressed = NULL; + *uncompressed_size = 0; + + /* The format starts with an ELF compression header. */ + if (compressed_size < sizeof (b_elf_chdr)) + return 1; + + chdr = (const b_elf_chdr *) compressed; + + if (chdr->ch_type != ELFCOMPRESS_ZLIB) + { + /* Unsupported compression algorithm. */ + return 1; + } + + if (*uncompressed != NULL && *uncompressed_size >= chdr->ch_size) + po = *uncompressed; + else + { + po = (unsigned char *) backtrace_alloc (state, chdr->ch_size, + error_callback, data); + if (po == NULL) + return 0; + } + + if (!elf_zlib_inflate_and_verify (compressed + sizeof (b_elf_chdr), + compressed_size - sizeof (b_elf_chdr), + zdebug_table, po, chdr->ch_size)) + return 1; + + *uncompressed = po; + *uncompressed_size = chdr->ch_size; + + return 1; +} + +/* This function is a hook for testing the zlib support. It is only + used by tests. */ + +int +backtrace_uncompress_zdebug (struct backtrace_state *state, + const unsigned char *compressed, + size_t compressed_size, + backtrace_error_callback error_callback, + void *data, unsigned char **uncompressed, + size_t *uncompressed_size) +{ + uint16_t *zdebug_table; + int ret; + + zdebug_table = ((uint16_t *) backtrace_alloc (state, ZDEBUG_TABLE_SIZE, + error_callback, data)); + if (zdebug_table == NULL) + return 0; + ret = elf_uncompress_zdebug (state, compressed, compressed_size, + zdebug_table, error_callback, data, + uncompressed, uncompressed_size); + backtrace_free (state, zdebug_table, ZDEBUG_TABLE_SIZE, + error_callback, data); + return ret; +} + +/* Number of LZMA states. */ +#define LZMA_STATES (12) + +/* Number of LZMA position states. The pb value of the property byte + is the number of bits to include in these states, and the maximum + value of pb is 4. */ +#define LZMA_POS_STATES (16) + +/* Number of LZMA distance states. These are used match distances + with a short match length: up to 4 bytes. */ +#define LZMA_DIST_STATES (4) + +/* Number of LZMA distance slots. LZMA uses six bits to encode larger + match lengths, so 1 << 6 possible probabilities. */ +#define LZMA_DIST_SLOTS (64) + +/* LZMA distances 0 to 3 are encoded directly, larger values use a + probability model. */ +#define LZMA_DIST_MODEL_START (4) + +/* The LZMA probability model ends at 14. */ +#define LZMA_DIST_MODEL_END (14) + +/* LZMA distance slots for distances less than 127. */ +#define LZMA_FULL_DISTANCES (128) + +/* LZMA uses four alignment bits. */ +#define LZMA_ALIGN_SIZE (16) + +/* LZMA match length is encoded with 4, 5, or 10 bits, some of which + are already known. */ +#define LZMA_LEN_LOW_SYMBOLS (8) +#define LZMA_LEN_MID_SYMBOLS (8) +#define LZMA_LEN_HIGH_SYMBOLS (256) + +/* LZMA literal encoding. */ +#define LZMA_LITERAL_CODERS_MAX (16) +#define LZMA_LITERAL_CODER_SIZE (0x300) + +/* LZMA is based on a large set of probabilities, each managed + independently. Each probability is an 11 bit number that we store + in a uint16_t. We use a single large array of probabilities. */ + +/* Lengths of entries in the LZMA probabilities array. The names used + here are copied from the Linux kernel implementation. */ + +#define LZMA_PROB_IS_MATCH_LEN (LZMA_STATES * LZMA_POS_STATES) +#define LZMA_PROB_IS_REP_LEN LZMA_STATES +#define LZMA_PROB_IS_REP0_LEN LZMA_STATES +#define LZMA_PROB_IS_REP1_LEN LZMA_STATES +#define LZMA_PROB_IS_REP2_LEN LZMA_STATES +#define LZMA_PROB_IS_REP0_LONG_LEN (LZMA_STATES * LZMA_POS_STATES) +#define LZMA_PROB_DIST_SLOT_LEN (LZMA_DIST_STATES * LZMA_DIST_SLOTS) +#define LZMA_PROB_DIST_SPECIAL_LEN (LZMA_FULL_DISTANCES - LZMA_DIST_MODEL_END) +#define LZMA_PROB_DIST_ALIGN_LEN LZMA_ALIGN_SIZE +#define LZMA_PROB_MATCH_LEN_CHOICE_LEN 1 +#define LZMA_PROB_MATCH_LEN_CHOICE2_LEN 1 +#define LZMA_PROB_MATCH_LEN_LOW_LEN (LZMA_POS_STATES * LZMA_LEN_LOW_SYMBOLS) +#define LZMA_PROB_MATCH_LEN_MID_LEN (LZMA_POS_STATES * LZMA_LEN_MID_SYMBOLS) +#define LZMA_PROB_MATCH_LEN_HIGH_LEN LZMA_LEN_HIGH_SYMBOLS +#define LZMA_PROB_REP_LEN_CHOICE_LEN 1 +#define LZMA_PROB_REP_LEN_CHOICE2_LEN 1 +#define LZMA_PROB_REP_LEN_LOW_LEN (LZMA_POS_STATES * LZMA_LEN_LOW_SYMBOLS) +#define LZMA_PROB_REP_LEN_MID_LEN (LZMA_POS_STATES * LZMA_LEN_MID_SYMBOLS) +#define LZMA_PROB_REP_LEN_HIGH_LEN LZMA_LEN_HIGH_SYMBOLS +#define LZMA_PROB_LITERAL_LEN \ + (LZMA_LITERAL_CODERS_MAX * LZMA_LITERAL_CODER_SIZE) + +/* Offsets into the LZMA probabilities array. This is mechanically + generated from the above lengths. */ + +#define LZMA_PROB_IS_MATCH_OFFSET 0 +#define LZMA_PROB_IS_REP_OFFSET \ + (LZMA_PROB_IS_MATCH_OFFSET + LZMA_PROB_IS_MATCH_LEN) +#define LZMA_PROB_IS_REP0_OFFSET \ + (LZMA_PROB_IS_REP_OFFSET + LZMA_PROB_IS_REP_LEN) +#define LZMA_PROB_IS_REP1_OFFSET \ + (LZMA_PROB_IS_REP0_OFFSET + LZMA_PROB_IS_REP0_LEN) +#define LZMA_PROB_IS_REP2_OFFSET \ + (LZMA_PROB_IS_REP1_OFFSET + LZMA_PROB_IS_REP1_LEN) +#define LZMA_PROB_IS_REP0_LONG_OFFSET \ + (LZMA_PROB_IS_REP2_OFFSET + LZMA_PROB_IS_REP2_LEN) +#define LZMA_PROB_DIST_SLOT_OFFSET \ + (LZMA_PROB_IS_REP0_LONG_OFFSET + LZMA_PROB_IS_REP0_LONG_LEN) +#define LZMA_PROB_DIST_SPECIAL_OFFSET \ + (LZMA_PROB_DIST_SLOT_OFFSET + LZMA_PROB_DIST_SLOT_LEN) +#define LZMA_PROB_DIST_ALIGN_OFFSET \ + (LZMA_PROB_DIST_SPECIAL_OFFSET + LZMA_PROB_DIST_SPECIAL_LEN) +#define LZMA_PROB_MATCH_LEN_CHOICE_OFFSET \ + (LZMA_PROB_DIST_ALIGN_OFFSET + LZMA_PROB_DIST_ALIGN_LEN) +#define LZMA_PROB_MATCH_LEN_CHOICE2_OFFSET \ + (LZMA_PROB_MATCH_LEN_CHOICE_OFFSET + LZMA_PROB_MATCH_LEN_CHOICE_LEN) +#define LZMA_PROB_MATCH_LEN_LOW_OFFSET \ + (LZMA_PROB_MATCH_LEN_CHOICE2_OFFSET + LZMA_PROB_MATCH_LEN_CHOICE2_LEN) +#define LZMA_PROB_MATCH_LEN_MID_OFFSET \ + (LZMA_PROB_MATCH_LEN_LOW_OFFSET + LZMA_PROB_MATCH_LEN_LOW_LEN) +#define LZMA_PROB_MATCH_LEN_HIGH_OFFSET \ + (LZMA_PROB_MATCH_LEN_MID_OFFSET + LZMA_PROB_MATCH_LEN_MID_LEN) +#define LZMA_PROB_REP_LEN_CHOICE_OFFSET \ + (LZMA_PROB_MATCH_LEN_HIGH_OFFSET + LZMA_PROB_MATCH_LEN_HIGH_LEN) +#define LZMA_PROB_REP_LEN_CHOICE2_OFFSET \ + (LZMA_PROB_REP_LEN_CHOICE_OFFSET + LZMA_PROB_REP_LEN_CHOICE_LEN) +#define LZMA_PROB_REP_LEN_LOW_OFFSET \ + (LZMA_PROB_REP_LEN_CHOICE2_OFFSET + LZMA_PROB_REP_LEN_CHOICE2_LEN) +#define LZMA_PROB_REP_LEN_MID_OFFSET \ + (LZMA_PROB_REP_LEN_LOW_OFFSET + LZMA_PROB_REP_LEN_LOW_LEN) +#define LZMA_PROB_REP_LEN_HIGH_OFFSET \ + (LZMA_PROB_REP_LEN_MID_OFFSET + LZMA_PROB_REP_LEN_MID_LEN) +#define LZMA_PROB_LITERAL_OFFSET \ + (LZMA_PROB_REP_LEN_HIGH_OFFSET + LZMA_PROB_REP_LEN_HIGH_LEN) + +#define LZMA_PROB_TOTAL_COUNT \ + (LZMA_PROB_LITERAL_OFFSET + LZMA_PROB_LITERAL_LEN) + +/* Check that the number of LZMA probabilities is the same as the + Linux kernel implementation. */ + +#if LZMA_PROB_TOTAL_COUNT != 1846 + (1 << 4) * 0x300 + #error Wrong number of LZMA probabilities +#endif + +/* Expressions for the offset in the LZMA probabilities array of a + specific probability. */ + +#define LZMA_IS_MATCH(state, pos) \ + (LZMA_PROB_IS_MATCH_OFFSET + (state) * LZMA_POS_STATES + (pos)) +#define LZMA_IS_REP(state) \ + (LZMA_PROB_IS_REP_OFFSET + (state)) +#define LZMA_IS_REP0(state) \ + (LZMA_PROB_IS_REP0_OFFSET + (state)) +#define LZMA_IS_REP1(state) \ + (LZMA_PROB_IS_REP1_OFFSET + (state)) +#define LZMA_IS_REP2(state) \ + (LZMA_PROB_IS_REP2_OFFSET + (state)) +#define LZMA_IS_REP0_LONG(state, pos) \ + (LZMA_PROB_IS_REP0_LONG_OFFSET + (state) * LZMA_POS_STATES + (pos)) +#define LZMA_DIST_SLOT(dist, slot) \ + (LZMA_PROB_DIST_SLOT_OFFSET + (dist) * LZMA_DIST_SLOTS + (slot)) +#define LZMA_DIST_SPECIAL(dist) \ + (LZMA_PROB_DIST_SPECIAL_OFFSET + (dist)) +#define LZMA_DIST_ALIGN(dist) \ + (LZMA_PROB_DIST_ALIGN_OFFSET + (dist)) +#define LZMA_MATCH_LEN_CHOICE \ + LZMA_PROB_MATCH_LEN_CHOICE_OFFSET +#define LZMA_MATCH_LEN_CHOICE2 \ + LZMA_PROB_MATCH_LEN_CHOICE2_OFFSET +#define LZMA_MATCH_LEN_LOW(pos, sym) \ + (LZMA_PROB_MATCH_LEN_LOW_OFFSET + (pos) * LZMA_LEN_LOW_SYMBOLS + (sym)) +#define LZMA_MATCH_LEN_MID(pos, sym) \ + (LZMA_PROB_MATCH_LEN_MID_OFFSET + (pos) * LZMA_LEN_MID_SYMBOLS + (sym)) +#define LZMA_MATCH_LEN_HIGH(sym) \ + (LZMA_PROB_MATCH_LEN_HIGH_OFFSET + (sym)) +#define LZMA_REP_LEN_CHOICE \ + LZMA_PROB_REP_LEN_CHOICE_OFFSET +#define LZMA_REP_LEN_CHOICE2 \ + LZMA_PROB_REP_LEN_CHOICE2_OFFSET +#define LZMA_REP_LEN_LOW(pos, sym) \ + (LZMA_PROB_REP_LEN_LOW_OFFSET + (pos) * LZMA_LEN_LOW_SYMBOLS + (sym)) +#define LZMA_REP_LEN_MID(pos, sym) \ + (LZMA_PROB_REP_LEN_MID_OFFSET + (pos) * LZMA_LEN_MID_SYMBOLS + (sym)) +#define LZMA_REP_LEN_HIGH(sym) \ + (LZMA_PROB_REP_LEN_HIGH_OFFSET + (sym)) +#define LZMA_LITERAL(code, size) \ + (LZMA_PROB_LITERAL_OFFSET + (code) * LZMA_LITERAL_CODER_SIZE + (size)) + +/* Read an LZMA varint from BUF, reading and updating *POFFSET, + setting *VAL. Returns 0 on error, 1 on success. */ + +static int +elf_lzma_varint (const unsigned char *compressed, size_t compressed_size, + size_t *poffset, uint64_t *val) +{ + size_t off; + int i; + uint64_t v; + unsigned char b; + + off = *poffset; + i = 0; + v = 0; + while (1) + { + if (unlikely (off >= compressed_size)) + { + elf_uncompress_failed (); + return 0; + } + b = compressed[off]; + v |= (b & 0x7f) << (i * 7); + ++off; + if ((b & 0x80) == 0) + { + *poffset = off; + *val = v; + return 1; + } + ++i; + if (unlikely (i >= 9)) + { + elf_uncompress_failed (); + return 0; + } + } +} + +/* Normalize the LZMA range decoder, pulling in an extra input byte if + needed. */ + +static void +elf_lzma_range_normalize (const unsigned char *compressed, + size_t compressed_size, size_t *poffset, + uint32_t *prange, uint32_t *pcode) +{ + if (*prange < (1U << 24)) + { + if (unlikely (*poffset >= compressed_size)) + { + /* We assume this will be caught elsewhere. */ + elf_uncompress_failed (); + return; + } + *prange <<= 8; + *pcode <<= 8; + *pcode += compressed[*poffset]; + ++*poffset; + } +} + +/* Read and return a single bit from the LZMA stream, reading and + updating *PROB. Each bit comes from the range coder. */ + +static int +elf_lzma_bit (const unsigned char *compressed, size_t compressed_size, + uint16_t *prob, size_t *poffset, uint32_t *prange, + uint32_t *pcode) +{ + uint32_t bound; + + elf_lzma_range_normalize (compressed, compressed_size, poffset, + prange, pcode); + bound = (*prange >> 11) * (uint32_t) *prob; + if (*pcode < bound) + { + *prange = bound; + *prob += ((1U << 11) - *prob) >> 5; + return 0; + } + else + { + *prange -= bound; + *pcode -= bound; + *prob -= *prob >> 5; + return 1; + } +} + +/* Read an integer of size BITS from the LZMA stream, most significant + bit first. The bits are predicted using PROBS. */ + +static uint32_t +elf_lzma_integer (const unsigned char *compressed, size_t compressed_size, + uint16_t *probs, uint32_t bits, size_t *poffset, + uint32_t *prange, uint32_t *pcode) +{ + uint32_t sym; + uint32_t i; + + sym = 1; + for (i = 0; i < bits; i++) + { + int bit; + + bit = elf_lzma_bit (compressed, compressed_size, probs + sym, poffset, + prange, pcode); + sym <<= 1; + sym += bit; + } + return sym - (1 << bits); +} + +/* Read an integer of size BITS from the LZMA stream, least + significant bit first. The bits are predicted using PROBS. */ + +static uint32_t +elf_lzma_reverse_integer (const unsigned char *compressed, + size_t compressed_size, uint16_t *probs, + uint32_t bits, size_t *poffset, uint32_t *prange, + uint32_t *pcode) +{ + uint32_t sym; + uint32_t val; + uint32_t i; + + sym = 1; + val = 0; + for (i = 0; i < bits; i++) + { + int bit; + + bit = elf_lzma_bit (compressed, compressed_size, probs + sym, poffset, + prange, pcode); + sym <<= 1; + sym += bit; + val += bit << i; + } + return val; +} + +/* Read a length from the LZMA stream. IS_REP picks either LZMA_MATCH + or LZMA_REP probabilities. */ + +static uint32_t +elf_lzma_len (const unsigned char *compressed, size_t compressed_size, + uint16_t *probs, int is_rep, unsigned int pos_state, + size_t *poffset, uint32_t *prange, uint32_t *pcode) +{ + uint16_t *probs_choice; + uint16_t *probs_sym; + uint32_t bits; + uint32_t len; + + probs_choice = probs + (is_rep + ? LZMA_REP_LEN_CHOICE + : LZMA_MATCH_LEN_CHOICE); + if (elf_lzma_bit (compressed, compressed_size, probs_choice, poffset, + prange, pcode)) + { + probs_choice = probs + (is_rep + ? LZMA_REP_LEN_CHOICE2 + : LZMA_MATCH_LEN_CHOICE2); + if (elf_lzma_bit (compressed, compressed_size, probs_choice, + poffset, prange, pcode)) + { + probs_sym = probs + (is_rep + ? LZMA_REP_LEN_HIGH (0) + : LZMA_MATCH_LEN_HIGH (0)); + bits = 8; + len = 2 + 8 + 8; + } + else + { + probs_sym = probs + (is_rep + ? LZMA_REP_LEN_MID (pos_state, 0) + : LZMA_MATCH_LEN_MID (pos_state, 0)); + bits = 3; + len = 2 + 8; + } + } + else + { + probs_sym = probs + (is_rep + ? LZMA_REP_LEN_LOW (pos_state, 0) + : LZMA_MATCH_LEN_LOW (pos_state, 0)); + bits = 3; + len = 2; + } + + len += elf_lzma_integer (compressed, compressed_size, probs_sym, bits, + poffset, prange, pcode); + return len; +} + +/* Uncompress one LZMA block from a minidebug file. The compressed + data is at COMPRESSED + *POFFSET. Update *POFFSET. Store the data + into the memory at UNCOMPRESSED, size UNCOMPRESSED_SIZE. CHECK is + the stream flag from the xz header. Return 1 on successful + decompression. */ + +static int +elf_uncompress_lzma_block (const unsigned char *compressed, + size_t compressed_size, unsigned char check, + uint16_t *probs, unsigned char *uncompressed, + size_t uncompressed_size, size_t *poffset) +{ + size_t off; + size_t block_header_offset; + size_t block_header_size; + unsigned char block_flags; + uint64_t header_compressed_size; + uint64_t header_uncompressed_size; + unsigned char lzma2_properties; + uint32_t computed_crc; + uint32_t stream_crc; + size_t uncompressed_offset; + size_t dict_start_offset; + unsigned int lc; + unsigned int lp; + unsigned int pb; + uint32_t range; + uint32_t code; + uint32_t lstate; + uint32_t dist[4]; + + off = *poffset; + block_header_offset = off; + + /* Block header size is a single byte. */ + if (unlikely (off >= compressed_size)) + { + elf_uncompress_failed (); + return 0; + } + block_header_size = (compressed[off] + 1) * 4; + if (unlikely (off + block_header_size > compressed_size)) + { + elf_uncompress_failed (); + return 0; + } + + /* Block flags. */ + block_flags = compressed[off + 1]; + if (unlikely ((block_flags & 0x3c) != 0)) + { + elf_uncompress_failed (); + return 0; + } + + off += 2; + + /* Optional compressed size. */ + header_compressed_size = 0; + if ((block_flags & 0x40) != 0) + { + *poffset = off; + if (!elf_lzma_varint (compressed, compressed_size, poffset, + &header_compressed_size)) + return 0; + off = *poffset; + } + + /* Optional uncompressed size. */ + header_uncompressed_size = 0; + if ((block_flags & 0x80) != 0) + { + *poffset = off; + if (!elf_lzma_varint (compressed, compressed_size, poffset, + &header_uncompressed_size)) + return 0; + off = *poffset; + } + + /* The recipe for creating a minidebug file is to run the xz program + with no arguments, so we expect exactly one filter: lzma2. */ + + if (unlikely ((block_flags & 0x3) != 0)) + { + elf_uncompress_failed (); + return 0; + } + + if (unlikely (off + 2 >= block_header_offset + block_header_size)) + { + elf_uncompress_failed (); + return 0; + } + + /* The filter ID for LZMA2 is 0x21. */ + if (unlikely (compressed[off] != 0x21)) + { + elf_uncompress_failed (); + return 0; + } + ++off; + + /* The size of the filter properties for LZMA2 is 1. */ + if (unlikely (compressed[off] != 1)) + { + elf_uncompress_failed (); + return 0; + } + ++off; + + lzma2_properties = compressed[off]; + ++off; + + if (unlikely (lzma2_properties > 40)) + { + elf_uncompress_failed (); + return 0; + } + + /* The properties describe the dictionary size, but we don't care + what that is. */ + + /* Block header padding. */ + if (unlikely (off + 4 > compressed_size)) + { + elf_uncompress_failed (); + return 0; + } + + off = (off + 3) &~ (size_t) 3; + + if (unlikely (off + 4 > compressed_size)) + { + elf_uncompress_failed (); + return 0; + } + + /* Block header CRC. */ + computed_crc = elf_crc32 (0, compressed + block_header_offset, + block_header_size - 4); + stream_crc = (compressed[off] + | (compressed[off + 1] << 8) + | (compressed[off + 2] << 16) + | (compressed[off + 3] << 24)); + if (unlikely (computed_crc != stream_crc)) + { + elf_uncompress_failed (); + return 0; + } + off += 4; + + /* Read a sequence of LZMA2 packets. */ + + uncompressed_offset = 0; + dict_start_offset = 0; + lc = 0; + lp = 0; + pb = 0; + lstate = 0; + while (off < compressed_size) + { + unsigned char control; + + range = 0xffffffff; + code = 0; + + control = compressed[off]; + ++off; + if (unlikely (control == 0)) + { + /* End of packets. */ + break; + } + + if (control == 1 || control >= 0xe0) + { + /* Reset dictionary to empty. */ + dict_start_offset = uncompressed_offset; + } + + if (control < 0x80) + { + size_t chunk_size; + + /* The only valid values here are 1 or 2. A 1 means to + reset the dictionary (done above). Then we see an + uncompressed chunk. */ + + if (unlikely (control > 2)) + { + elf_uncompress_failed (); + return 0; + } + + /* An uncompressed chunk is a two byte size followed by + data. */ + + if (unlikely (off + 2 > compressed_size)) + { + elf_uncompress_failed (); + return 0; + } + + chunk_size = compressed[off] << 8; + chunk_size += compressed[off + 1]; + ++chunk_size; + + off += 2; + + if (unlikely (off + chunk_size > compressed_size)) + { + elf_uncompress_failed (); + return 0; + } + if (unlikely (uncompressed_offset + chunk_size > uncompressed_size)) + { + elf_uncompress_failed (); + return 0; + } + + memcpy (uncompressed + uncompressed_offset, compressed + off, + chunk_size); + uncompressed_offset += chunk_size; + off += chunk_size; + } + else + { + size_t uncompressed_chunk_start; + size_t uncompressed_chunk_size; + size_t compressed_chunk_size; + size_t limit; + + /* An LZMA chunk. This starts with an uncompressed size and + a compressed size. */ + + if (unlikely (off + 4 >= compressed_size)) + { + elf_uncompress_failed (); + return 0; + } + + uncompressed_chunk_start = uncompressed_offset; + + uncompressed_chunk_size = (control & 0x1f) << 16; + uncompressed_chunk_size += compressed[off] << 8; + uncompressed_chunk_size += compressed[off + 1]; + ++uncompressed_chunk_size; + + compressed_chunk_size = compressed[off + 2] << 8; + compressed_chunk_size += compressed[off + 3]; + ++compressed_chunk_size; + + off += 4; + + /* Bit 7 (0x80) is set. + Bits 6 and 5 (0x40 and 0x20) are as follows: + 0: don't reset anything + 1: reset state + 2: reset state, read properties + 3: reset state, read properties, reset dictionary (done above) */ + + if (control >= 0xc0) + { + unsigned char props; + + /* Bit 6 is set, read properties. */ + + if (unlikely (off >= compressed_size)) + { + elf_uncompress_failed (); + return 0; + } + props = compressed[off]; + ++off; + if (unlikely (props > (4 * 5 + 4) * 9 + 8)) + { + elf_uncompress_failed (); + return 0; + } + pb = 0; + while (props >= 9 * 5) + { + props -= 9 * 5; + ++pb; + } + lp = 0; + while (props > 9) + { + props -= 9; + ++lp; + } + lc = props; + if (unlikely (lc + lp > 4)) + { + elf_uncompress_failed (); + return 0; + } + } + + if (control >= 0xa0) + { + size_t i; + + /* Bit 5 or 6 is set, reset LZMA state. */ + + lstate = 0; + memset (&dist, 0, sizeof dist); + for (i = 0; i < LZMA_PROB_TOTAL_COUNT; i++) + probs[i] = 1 << 10; + range = 0xffffffff; + code = 0; + } + + /* Read the range code. */ + + if (unlikely (off + 5 > compressed_size)) + { + elf_uncompress_failed (); + return 0; + } + + /* The byte at compressed[off] is ignored for some + reason. */ + + code = ((compressed[off + 1] << 24) + + (compressed[off + 2] << 16) + + (compressed[off + 3] << 8) + + compressed[off + 4]); + off += 5; + + /* This is the main LZMA decode loop. */ + + limit = off + compressed_chunk_size; + *poffset = off; + while (*poffset < limit) + { + unsigned int pos_state; + + if (unlikely (uncompressed_offset + == (uncompressed_chunk_start + + uncompressed_chunk_size))) + { + /* We've decompressed all the expected bytes. */ + break; + } + + pos_state = ((uncompressed_offset - dict_start_offset) + & ((1 << pb) - 1)); + + if (elf_lzma_bit (compressed, compressed_size, + probs + LZMA_IS_MATCH (lstate, pos_state), + poffset, &range, &code)) + { + uint32_t len; + + if (elf_lzma_bit (compressed, compressed_size, + probs + LZMA_IS_REP (lstate), + poffset, &range, &code)) + { + int short_rep; + uint32_t next_dist; + + /* Repeated match. */ + + short_rep = 0; + if (elf_lzma_bit (compressed, compressed_size, + probs + LZMA_IS_REP0 (lstate), + poffset, &range, &code)) + { + if (elf_lzma_bit (compressed, compressed_size, + probs + LZMA_IS_REP1 (lstate), + poffset, &range, &code)) + { + if (elf_lzma_bit (compressed, compressed_size, + probs + LZMA_IS_REP2 (lstate), + poffset, &range, &code)) + { + next_dist = dist[3]; + dist[3] = dist[2]; + } + else + { + next_dist = dist[2]; + } + dist[2] = dist[1]; + } + else + { + next_dist = dist[1]; + } + + dist[1] = dist[0]; + dist[0] = next_dist; + } + else + { + if (!elf_lzma_bit (compressed, compressed_size, + (probs + + LZMA_IS_REP0_LONG (lstate, + pos_state)), + poffset, &range, &code)) + short_rep = 1; + } + + if (lstate < 7) + lstate = short_rep ? 9 : 8; + else + lstate = 11; + + if (short_rep) + len = 1; + else + len = elf_lzma_len (compressed, compressed_size, + probs, 1, pos_state, poffset, + &range, &code); + } + else + { + uint32_t dist_state; + uint32_t dist_slot; + uint16_t *probs_dist; + + /* Match. */ + + if (lstate < 7) + lstate = 7; + else + lstate = 10; + dist[3] = dist[2]; + dist[2] = dist[1]; + dist[1] = dist[0]; + len = elf_lzma_len (compressed, compressed_size, + probs, 0, pos_state, poffset, + &range, &code); + + if (len < 4 + 2) + dist_state = len - 2; + else + dist_state = 3; + probs_dist = probs + LZMA_DIST_SLOT (dist_state, 0); + dist_slot = elf_lzma_integer (compressed, + compressed_size, + probs_dist, 6, + poffset, &range, + &code); + if (dist_slot < LZMA_DIST_MODEL_START) + dist[0] = dist_slot; + else + { + uint32_t limit; + + limit = (dist_slot >> 1) - 1; + dist[0] = 2 + (dist_slot & 1); + if (dist_slot < LZMA_DIST_MODEL_END) + { + dist[0] <<= limit; + probs_dist = (probs + + LZMA_DIST_SPECIAL(dist[0] + - dist_slot + - 1)); + dist[0] += + elf_lzma_reverse_integer (compressed, + compressed_size, + probs_dist, + limit, poffset, + &range, &code); + } + else + { + uint32_t dist0; + uint32_t i; + + dist0 = dist[0]; + for (i = 0; i < limit - 4; i++) + { + uint32_t mask; + + elf_lzma_range_normalize (compressed, + compressed_size, + poffset, + &range, &code); + range >>= 1; + code -= range; + mask = -(code >> 31); + code += range & mask; + dist0 <<= 1; + dist0 += mask + 1; + } + dist0 <<= 4; + probs_dist = probs + LZMA_DIST_ALIGN (0); + dist0 += + elf_lzma_reverse_integer (compressed, + compressed_size, + probs_dist, 4, + poffset, + &range, &code); + dist[0] = dist0; + } + } + } + + if (unlikely (uncompressed_offset + - dict_start_offset < dist[0] + 1)) + { + elf_uncompress_failed (); + return 0; + } + if (unlikely (uncompressed_offset + len > uncompressed_size)) + { + elf_uncompress_failed (); + return 0; + } + + if (dist[0] == 0) + { + /* A common case, meaning repeat the last + character LEN times. */ + memset (uncompressed + uncompressed_offset, + uncompressed[uncompressed_offset - 1], + len); + uncompressed_offset += len; + } + else if (dist[0] + 1 >= len) + { + memcpy (uncompressed + uncompressed_offset, + uncompressed + uncompressed_offset - dist[0] - 1, + len); + uncompressed_offset += len; + } + else + { + while (len > 0) + { + uint32_t copy; + + copy = len < dist[0] + 1 ? len : dist[0] + 1; + memcpy (uncompressed + uncompressed_offset, + (uncompressed + uncompressed_offset + - dist[0] - 1), + copy); + len -= copy; + uncompressed_offset += copy; + } + } + } + else + { + unsigned char prev; + unsigned char low; + size_t high; + uint16_t *lit_probs; + unsigned int sym; + + /* Literal value. */ + + if (uncompressed_offset > 0) + prev = uncompressed[uncompressed_offset - 1]; + else + prev = 0; + low = prev >> (8 - lc); + high = (((uncompressed_offset - dict_start_offset) + & ((1 << lp) - 1)) + << lc); + lit_probs = probs + LZMA_LITERAL (low + high, 0); + if (lstate < 7) + sym = elf_lzma_integer (compressed, compressed_size, + lit_probs, 8, poffset, &range, + &code); + else + { + unsigned int match; + unsigned int bit; + unsigned int match_bit; + unsigned int idx; + + sym = 1; + if (uncompressed_offset >= dist[0] + 1) + match = uncompressed[uncompressed_offset - dist[0] - 1]; + else + match = 0; + match <<= 1; + bit = 0x100; + do + { + match_bit = match & bit; + match <<= 1; + idx = bit + match_bit + sym; + sym <<= 1; + if (elf_lzma_bit (compressed, compressed_size, + lit_probs + idx, poffset, + &range, &code)) + { + ++sym; + bit &= match_bit; + } + else + { + bit &= ~ match_bit; + } + } + while (sym < 0x100); + } + + if (unlikely (uncompressed_offset >= uncompressed_size)) + { + elf_uncompress_failed (); + return 0; + } + + uncompressed[uncompressed_offset] = (unsigned char) sym; + ++uncompressed_offset; + if (lstate <= 3) + lstate = 0; + else if (lstate <= 9) + lstate -= 3; + else + lstate -= 6; + } + } + + elf_lzma_range_normalize (compressed, compressed_size, poffset, + &range, &code); + + off = *poffset; + } + } + + /* We have reached the end of the block. Pad to four byte + boundary. */ + off = (off + 3) &~ (size_t) 3; + if (unlikely (off > compressed_size)) + { + elf_uncompress_failed (); + return 0; + } + + switch (check) + { + case 0: + /* No check. */ + break; + + case 1: + /* CRC32 */ + if (unlikely (off + 4 > compressed_size)) + { + elf_uncompress_failed (); + return 0; + } + computed_crc = elf_crc32 (0, uncompressed, uncompressed_offset); + stream_crc = (compressed[off] + | (compressed[off + 1] << 8) + | (compressed[off + 2] << 16) + | (compressed[off + 3] << 24)); + if (computed_crc != stream_crc) + { + elf_uncompress_failed (); + return 0; + } + off += 4; + break; + + case 4: + /* CRC64. We don't bother computing a CRC64 checksum. */ + if (unlikely (off + 8 > compressed_size)) + { + elf_uncompress_failed (); + return 0; + } + off += 8; + break; + + case 10: + /* SHA. We don't bother computing a SHA checksum. */ + if (unlikely (off + 32 > compressed_size)) + { + elf_uncompress_failed (); + return 0; + } + off += 32; + break; + + default: + elf_uncompress_failed (); + return 0; + } + + *poffset = off; + + return 1; +} + +/* Uncompress LZMA data found in a minidebug file. The minidebug + format is described at + https://sourceware.org/gdb/current/onlinedocs/gdb/MiniDebugInfo.html. + Returns 0 on error, 1 on successful decompression. For this + function we return 0 on failure to decompress, as the calling code + will carry on in that case. */ + +static int +elf_uncompress_lzma (struct backtrace_state *state, + const unsigned char *compressed, size_t compressed_size, + backtrace_error_callback error_callback, void *data, + unsigned char **uncompressed, size_t *uncompressed_size) +{ + size_t header_size; + size_t footer_size; + unsigned char check; + uint32_t computed_crc; + uint32_t stream_crc; + size_t offset; + size_t index_size; + size_t footer_offset; + size_t index_offset; + uint64_t index_compressed_size; + uint64_t index_uncompressed_size; + unsigned char *mem; + uint16_t *probs; + size_t compressed_block_size; + + /* The format starts with a stream header and ends with a stream + footer. */ + header_size = 12; + footer_size = 12; + if (unlikely (compressed_size < header_size + footer_size)) + { + elf_uncompress_failed (); + return 0; + } + + /* The stream header starts with a magic string. */ + if (unlikely (memcmp (compressed, "\375" "7zXZ\0", 6) != 0)) + { + elf_uncompress_failed (); + return 0; + } + + /* Next come stream flags. The first byte is zero, the second byte + is the check. */ + if (unlikely (compressed[6] != 0)) + { + elf_uncompress_failed (); + return 0; + } + check = compressed[7]; + if (unlikely ((check & 0xf8) != 0)) + { + elf_uncompress_failed (); + return 0; + } + + /* Next comes a CRC of the stream flags. */ + computed_crc = elf_crc32 (0, compressed + 6, 2); + stream_crc = (compressed[8] + | (compressed[9] << 8) + | (compressed[10] << 16) + | (compressed[11] << 24)); + if (unlikely (computed_crc != stream_crc)) + { + elf_uncompress_failed (); + return 0; + } + + /* Now that we've parsed the header, parse the footer, so that we + can get the uncompressed size. */ + + /* The footer ends with two magic bytes. */ + + offset = compressed_size; + if (unlikely (memcmp (compressed + offset - 2, "YZ", 2) != 0)) + { + elf_uncompress_failed (); + return 0; + } + offset -= 2; + + /* Before that are the stream flags, which should be the same as the + flags in the header. */ + if (unlikely (compressed[offset - 2] != 0 + || compressed[offset - 1] != check)) + { + elf_uncompress_failed (); + return 0; + } + offset -= 2; + + /* Before that is the size of the index field, which precedes the + footer. */ + index_size = (compressed[offset - 4] + | (compressed[offset - 3] << 8) + | (compressed[offset - 2] << 16) + | (compressed[offset - 1] << 24)); + index_size = (index_size + 1) * 4; + offset -= 4; + + /* Before that is a footer CRC. */ + computed_crc = elf_crc32 (0, compressed + offset, 6); + stream_crc = (compressed[offset - 4] + | (compressed[offset - 3] << 8) + | (compressed[offset - 2] << 16) + | (compressed[offset - 1] << 24)); + if (unlikely (computed_crc != stream_crc)) + { + elf_uncompress_failed (); + return 0; + } + offset -= 4; + + /* The index comes just before the footer. */ + if (unlikely (offset < index_size + header_size)) + { + elf_uncompress_failed (); + return 0; + } + + footer_offset = offset; + offset -= index_size; + index_offset = offset; + + /* The index starts with a zero byte. */ + if (unlikely (compressed[offset] != 0)) + { + elf_uncompress_failed (); + return 0; + } + ++offset; + + /* Next is the number of blocks. We expect zero blocks for an empty + stream, and otherwise a single block. */ + if (unlikely (compressed[offset] == 0)) + { + *uncompressed = NULL; + *uncompressed_size = 0; + return 1; + } + if (unlikely (compressed[offset] != 1)) + { + elf_uncompress_failed (); + return 0; + } + ++offset; + + /* Next is the compressed size and the uncompressed size. */ + if (!elf_lzma_varint (compressed, compressed_size, &offset, + &index_compressed_size)) + return 0; + if (!elf_lzma_varint (compressed, compressed_size, &offset, + &index_uncompressed_size)) + return 0; + + /* Pad to a four byte boundary. */ + offset = (offset + 3) &~ (size_t) 3; + + /* Next is a CRC of the index. */ + computed_crc = elf_crc32 (0, compressed + index_offset, + offset - index_offset); + stream_crc = (compressed[offset] + | (compressed[offset + 1] << 8) + | (compressed[offset + 2] << 16) + | (compressed[offset + 3] << 24)); + if (unlikely (computed_crc != stream_crc)) + { + elf_uncompress_failed (); + return 0; + } + offset += 4; + + /* We should now be back at the footer. */ + if (unlikely (offset != footer_offset)) + { + elf_uncompress_failed (); + return 0; + } + + /* Allocate space to hold the uncompressed data. If we succeed in + uncompressing the LZMA data, we never free this memory. */ + mem = (unsigned char *) backtrace_alloc (state, index_uncompressed_size, + error_callback, data); + if (unlikely (mem == NULL)) + return 0; + *uncompressed = mem; + *uncompressed_size = index_uncompressed_size; + + /* Allocate space for probabilities. */ + probs = ((uint16_t *) + backtrace_alloc (state, + LZMA_PROB_TOTAL_COUNT * sizeof (uint16_t), + error_callback, data)); + if (unlikely (probs == NULL)) + { + backtrace_free (state, mem, index_uncompressed_size, error_callback, + data); + return 0; + } + + /* Uncompress the block, which follows the header. */ + offset = 12; + if (!elf_uncompress_lzma_block (compressed, compressed_size, check, probs, + mem, index_uncompressed_size, &offset)) + { + backtrace_free (state, mem, index_uncompressed_size, error_callback, + data); + return 0; + } + + compressed_block_size = offset - 12; + if (unlikely (compressed_block_size + != ((index_compressed_size + 3) &~ (size_t) 3))) + { + elf_uncompress_failed (); + backtrace_free (state, mem, index_uncompressed_size, error_callback, + data); + return 0; + } + + offset = (offset + 3) &~ (size_t) 3; + if (unlikely (offset != index_offset)) + { + elf_uncompress_failed (); + backtrace_free (state, mem, index_uncompressed_size, error_callback, + data); + return 0; + } + + return 1; +} + +/* This function is a hook for testing the LZMA support. It is only + used by tests. */ + +int +backtrace_uncompress_lzma (struct backtrace_state *state, + const unsigned char *compressed, + size_t compressed_size, + backtrace_error_callback error_callback, + void *data, unsigned char **uncompressed, + size_t *uncompressed_size) +{ + return elf_uncompress_lzma (state, compressed, compressed_size, + error_callback, data, uncompressed, + uncompressed_size); +} + +/* Add the backtrace data for one ELF file. Returns 1 on success, + 0 on failure (in both cases descriptor is closed) or -1 if exe + is non-zero and the ELF file is ET_DYN, which tells the caller that + elf_add will need to be called on the descriptor again after + base_address is determined. */ + +static int +elf_add (struct backtrace_state *state, const char *filename, int descriptor, + const unsigned char *memory, size_t memory_size, + uintptr_t base_address, backtrace_error_callback error_callback, + void *data, fileline *fileline_fn, int *found_sym, int *found_dwarf, + struct dwarf_data **fileline_entry, int exe, int debuginfo, + const char *with_buildid_data, uint32_t with_buildid_size) +{ + struct elf_view ehdr_view; + b_elf_ehdr ehdr; + off_t shoff; + unsigned int shnum; + unsigned int shstrndx; + struct elf_view shdrs_view; + int shdrs_view_valid; + const b_elf_shdr *shdrs; + const b_elf_shdr *shstrhdr; + size_t shstr_size; + off_t shstr_off; + struct elf_view names_view; + int names_view_valid; + const char *names; + unsigned int symtab_shndx; + unsigned int dynsym_shndx; + unsigned int i; + struct debug_section_info sections[DEBUG_MAX]; + struct debug_section_info zsections[DEBUG_MAX]; + struct elf_view symtab_view; + int symtab_view_valid; + struct elf_view strtab_view; + int strtab_view_valid; + struct elf_view buildid_view; + int buildid_view_valid; + const char *buildid_data; + uint32_t buildid_size; + struct elf_view debuglink_view; + int debuglink_view_valid; + const char *debuglink_name; + uint32_t debuglink_crc; + struct elf_view debugaltlink_view; + int debugaltlink_view_valid; + const char *debugaltlink_name; + const char *debugaltlink_buildid_data; + uint32_t debugaltlink_buildid_size; + struct elf_view gnu_debugdata_view; + int gnu_debugdata_view_valid; + size_t gnu_debugdata_size; + unsigned char *gnu_debugdata_uncompressed; + size_t gnu_debugdata_uncompressed_size; + off_t min_offset; + off_t max_offset; + off_t debug_size; + struct elf_view debug_view; + int debug_view_valid; + unsigned int using_debug_view; + uint16_t *zdebug_table; + struct elf_view split_debug_view[DEBUG_MAX]; + unsigned char split_debug_view_valid[DEBUG_MAX]; + struct elf_ppc64_opd_data opd_data, *opd; + struct dwarf_sections dwarf_sections; + + if (!debuginfo) + { + *found_sym = 0; + *found_dwarf = 0; + } + + shdrs_view_valid = 0; + names_view_valid = 0; + symtab_view_valid = 0; + strtab_view_valid = 0; + buildid_view_valid = 0; + buildid_data = NULL; + buildid_size = 0; + debuglink_view_valid = 0; + debuglink_name = NULL; + debuglink_crc = 0; + debugaltlink_view_valid = 0; + debugaltlink_name = NULL; + debugaltlink_buildid_data = NULL; + debugaltlink_buildid_size = 0; + gnu_debugdata_view_valid = 0; + gnu_debugdata_size = 0; + debug_view_valid = 0; + memset (&split_debug_view_valid[0], 0, sizeof split_debug_view_valid); + opd = NULL; + + if (!elf_get_view (state, descriptor, memory, memory_size, 0, sizeof ehdr, + error_callback, data, &ehdr_view)) + goto fail; + + memcpy (&ehdr, ehdr_view.view.data, sizeof ehdr); + + elf_release_view (state, &ehdr_view, error_callback, data); + + if (ehdr.e_ident[EI_MAG0] != ELFMAG0 + || ehdr.e_ident[EI_MAG1] != ELFMAG1 + || ehdr.e_ident[EI_MAG2] != ELFMAG2 + || ehdr.e_ident[EI_MAG3] != ELFMAG3) + { + error_callback (data, "executable file is not ELF", 0); + goto fail; + } + if (ehdr.e_ident[EI_VERSION] != EV_CURRENT) + { + error_callback (data, "executable file is unrecognized ELF version", 0); + goto fail; + } + +#if BACKTRACE_ELF_SIZE == 32 +#define BACKTRACE_ELFCLASS ELFCLASS32 +#else +#define BACKTRACE_ELFCLASS ELFCLASS64 +#endif + + if (ehdr.e_ident[EI_CLASS] != BACKTRACE_ELFCLASS) + { + error_callback (data, "executable file is unexpected ELF class", 0); + goto fail; + } + + if (ehdr.e_ident[EI_DATA] != ELFDATA2LSB + && ehdr.e_ident[EI_DATA] != ELFDATA2MSB) + { + error_callback (data, "executable file has unknown endianness", 0); + goto fail; + } + + /* If the executable is ET_DYN, it is either a PIE, or we are running + directly a shared library with .interp. We need to wait for + dl_iterate_phdr in that case to determine the actual base_address. */ + if (exe && ehdr.e_type == ET_DYN) + return -1; + + shoff = ehdr.e_shoff; + shnum = ehdr.e_shnum; + shstrndx = ehdr.e_shstrndx; + + if ((shnum == 0 || shstrndx == SHN_XINDEX) + && shoff != 0) + { + struct elf_view shdr_view; + const b_elf_shdr *shdr; + + if (!elf_get_view (state, descriptor, memory, memory_size, shoff, + sizeof shdr, error_callback, data, &shdr_view)) + goto fail; + + shdr = (const b_elf_shdr *) shdr_view.view.data; + + if (shnum == 0) + shnum = shdr->sh_size; + + if (shstrndx == SHN_XINDEX) + { + shstrndx = shdr->sh_link; + + /* Versions of the GNU binutils between 2.12 and 2.18 did + not handle objects with more than SHN_LORESERVE sections + correctly. All large section indexes were offset by + 0x100. There is more information at + http://sourceware.org/bugzilla/show_bug.cgi?id-5900 . + Fortunately these object files are easy to detect, as the + GNU binutils always put the section header string table + near the end of the list of sections. Thus if the + section header string table index is larger than the + number of sections, then we know we have to subtract + 0x100 to get the real section index. */ + if (shstrndx >= shnum && shstrndx >= SHN_LORESERVE + 0x100) + shstrndx -= 0x100; + } + + elf_release_view (state, &shdr_view, error_callback, data); + } + + if (shnum == 0 || shstrndx == 0) + goto fail; + + /* To translate PC to file/line when using DWARF, we need to find + the .debug_info and .debug_line sections. */ + + /* Read the section headers, skipping the first one. */ + + if (!elf_get_view (state, descriptor, memory, memory_size, + shoff + sizeof (b_elf_shdr), + (shnum - 1) * sizeof (b_elf_shdr), + error_callback, data, &shdrs_view)) + goto fail; + shdrs_view_valid = 1; + shdrs = (const b_elf_shdr *) shdrs_view.view.data; + + /* Read the section names. */ + + shstrhdr = &shdrs[shstrndx - 1]; + shstr_size = shstrhdr->sh_size; + shstr_off = shstrhdr->sh_offset; + + if (!elf_get_view (state, descriptor, memory, memory_size, shstr_off, + shstrhdr->sh_size, error_callback, data, &names_view)) + goto fail; + names_view_valid = 1; + names = (const char *) names_view.view.data; + + symtab_shndx = 0; + dynsym_shndx = 0; + + memset (sections, 0, sizeof sections); + memset (zsections, 0, sizeof zsections); + + /* Look for the symbol table. */ + for (i = 1; i < shnum; ++i) + { + const b_elf_shdr *shdr; + unsigned int sh_name; + const char *name; + int j; + + shdr = &shdrs[i - 1]; + + if (shdr->sh_type == SHT_SYMTAB) + symtab_shndx = i; + else if (shdr->sh_type == SHT_DYNSYM) + dynsym_shndx = i; + + sh_name = shdr->sh_name; + if (sh_name >= shstr_size) + { + error_callback (data, "ELF section name out of range", 0); + goto fail; + } + + name = names + sh_name; + + for (j = 0; j < (int) DEBUG_MAX; ++j) + { + if (strcmp (name, dwarf_section_names[j]) == 0) + { + sections[j].offset = shdr->sh_offset; + sections[j].size = shdr->sh_size; + sections[j].compressed = (shdr->sh_flags & SHF_COMPRESSED) != 0; + break; + } + } + + if (name[0] == '.' && name[1] == 'z') + { + for (j = 0; j < (int) DEBUG_MAX; ++j) + { + if (strcmp (name + 2, dwarf_section_names[j] + 1) == 0) + { + zsections[j].offset = shdr->sh_offset; + zsections[j].size = shdr->sh_size; + break; + } + } + } + + /* Read the build ID if present. This could check for any + SHT_NOTE section with the right note name and type, but gdb + looks for a specific section name. */ + if ((!debuginfo || with_buildid_data != NULL) + && !buildid_view_valid + && strcmp (name, ".note.gnu.build-id") == 0) + { + const b_elf_note *note; + + if (!elf_get_view (state, descriptor, memory, memory_size, + shdr->sh_offset, shdr->sh_size, error_callback, + data, &buildid_view)) + goto fail; + + buildid_view_valid = 1; + note = (const b_elf_note *) buildid_view.view.data; + if (note->type == NT_GNU_BUILD_ID + && note->namesz == 4 + && strncmp (note->name, "GNU", 4) == 0 + && shdr->sh_size <= 12 + ((note->namesz + 3) & ~ 3) + note->descsz) + { + buildid_data = ¬e->name[0] + ((note->namesz + 3) & ~ 3); + buildid_size = note->descsz; + } + + if (with_buildid_size != 0) + { + if (buildid_size != with_buildid_size) + goto fail; + + if (memcmp (buildid_data, with_buildid_data, buildid_size) != 0) + goto fail; + } + } + + /* Read the debuglink file if present. */ + if (!debuginfo + && !debuglink_view_valid + && strcmp (name, ".gnu_debuglink") == 0) + { + const char *debuglink_data; + size_t crc_offset; + + if (!elf_get_view (state, descriptor, memory, memory_size, + shdr->sh_offset, shdr->sh_size, error_callback, + data, &debuglink_view)) + goto fail; + + debuglink_view_valid = 1; + debuglink_data = (const char *) debuglink_view.view.data; + crc_offset = strnlen (debuglink_data, shdr->sh_size); + crc_offset = (crc_offset + 3) & ~3; + if (crc_offset + 4 <= shdr->sh_size) + { + debuglink_name = debuglink_data; + debuglink_crc = *(const uint32_t*)(debuglink_data + crc_offset); + } + } + + if (!debugaltlink_view_valid + && strcmp (name, ".gnu_debugaltlink") == 0) + { + const char *debugaltlink_data; + size_t debugaltlink_name_len; + + if (!elf_get_view (state, descriptor, memory, memory_size, + shdr->sh_offset, shdr->sh_size, error_callback, + data, &debugaltlink_view)) + goto fail; + + debugaltlink_view_valid = 1; + debugaltlink_data = (const char *) debugaltlink_view.view.data; + debugaltlink_name = debugaltlink_data; + debugaltlink_name_len = strnlen (debugaltlink_data, shdr->sh_size); + if (debugaltlink_name_len < shdr->sh_size) + { + /* Include terminating zero. */ + debugaltlink_name_len += 1; + + debugaltlink_buildid_data + = debugaltlink_data + debugaltlink_name_len; + debugaltlink_buildid_size = shdr->sh_size - debugaltlink_name_len; + } + } + + if (!gnu_debugdata_view_valid + && strcmp (name, ".gnu_debugdata") == 0) + { + if (!elf_get_view (state, descriptor, memory, memory_size, + shdr->sh_offset, shdr->sh_size, error_callback, + data, &gnu_debugdata_view)) + goto fail; + + gnu_debugdata_size = shdr->sh_size; + gnu_debugdata_view_valid = 1; + } + + /* Read the .opd section on PowerPC64 ELFv1. */ + if (ehdr.e_machine == EM_PPC64 + && (ehdr.e_flags & EF_PPC64_ABI) < 2 + && shdr->sh_type == SHT_PROGBITS + && strcmp (name, ".opd") == 0) + { + if (!elf_get_view (state, descriptor, memory, memory_size, + shdr->sh_offset, shdr->sh_size, error_callback, + data, &opd_data.view)) + goto fail; + + opd = &opd_data; + opd->addr = shdr->sh_addr; + opd->data = (const char *) opd_data.view.view.data; + opd->size = shdr->sh_size; + } + } + + if (symtab_shndx == 0) + symtab_shndx = dynsym_shndx; + if (symtab_shndx != 0 && !debuginfo) + { + const b_elf_shdr *symtab_shdr; + unsigned int strtab_shndx; + const b_elf_shdr *strtab_shdr; + struct elf_syminfo_data *sdata; + + symtab_shdr = &shdrs[symtab_shndx - 1]; + strtab_shndx = symtab_shdr->sh_link; + if (strtab_shndx >= shnum) + { + error_callback (data, + "ELF symbol table strtab link out of range", 0); + goto fail; + } + strtab_shdr = &shdrs[strtab_shndx - 1]; + + if (!elf_get_view (state, descriptor, memory, memory_size, + symtab_shdr->sh_offset, symtab_shdr->sh_size, + error_callback, data, &symtab_view)) + goto fail; + symtab_view_valid = 1; + + if (!elf_get_view (state, descriptor, memory, memory_size, + strtab_shdr->sh_offset, strtab_shdr->sh_size, + error_callback, data, &strtab_view)) + goto fail; + strtab_view_valid = 1; + + sdata = ((struct elf_syminfo_data *) + backtrace_alloc (state, sizeof *sdata, error_callback, data)); + if (sdata == NULL) + goto fail; + + if (!elf_initialize_syminfo (state, base_address, + symtab_view.view.data, symtab_shdr->sh_size, + strtab_view.view.data, strtab_shdr->sh_size, + error_callback, data, sdata, opd)) + { + backtrace_free (state, sdata, sizeof *sdata, error_callback, data); + goto fail; + } + + /* We no longer need the symbol table, but we hold on to the + string table permanently. */ + elf_release_view (state, &symtab_view, error_callback, data); + symtab_view_valid = 0; + strtab_view_valid = 0; + + *found_sym = 1; + + elf_add_syminfo_data (state, sdata); + } + + elf_release_view (state, &shdrs_view, error_callback, data); + shdrs_view_valid = 0; + elf_release_view (state, &names_view, error_callback, data); + names_view_valid = 0; + + /* If the debug info is in a separate file, read that one instead. */ + + if (buildid_data != NULL) + { + int d; + + d = elf_open_debugfile_by_buildid (state, buildid_data, buildid_size, + error_callback, data); + if (d >= 0) + { + int ret; + + elf_release_view (state, &buildid_view, error_callback, data); + if (debuglink_view_valid) + elf_release_view (state, &debuglink_view, error_callback, data); + if (debugaltlink_view_valid) + elf_release_view (state, &debugaltlink_view, error_callback, data); + ret = elf_add (state, "", d, NULL, 0, base_address, error_callback, + data, fileline_fn, found_sym, found_dwarf, NULL, 0, + 1, NULL, 0); + if (ret < 0) + backtrace_close (d, error_callback, data); + else if (descriptor >= 0) + backtrace_close (descriptor, error_callback, data); + return ret; + } + } + + if (buildid_view_valid) + { + elf_release_view (state, &buildid_view, error_callback, data); + buildid_view_valid = 0; + } + + if (opd) + { + elf_release_view (state, &opd->view, error_callback, data); + opd = NULL; + } + + if (debuglink_name != NULL) + { + int d; + + d = elf_open_debugfile_by_debuglink (state, filename, debuglink_name, + debuglink_crc, error_callback, + data); + if (d >= 0) + { + int ret; + + elf_release_view (state, &debuglink_view, error_callback, data); + if (debugaltlink_view_valid) + elf_release_view (state, &debugaltlink_view, error_callback, data); + ret = elf_add (state, "", d, NULL, 0, base_address, error_callback, + data, fileline_fn, found_sym, found_dwarf, NULL, 0, + 1, NULL, 0); + if (ret < 0) + backtrace_close (d, error_callback, data); + else if (descriptor >= 0) + backtrace_close(descriptor, error_callback, data); + return ret; + } + } + + if (debuglink_view_valid) + { + elf_release_view (state, &debuglink_view, error_callback, data); + debuglink_view_valid = 0; + } + + struct dwarf_data *fileline_altlink = NULL; + if (debugaltlink_name != NULL) + { + int d; + + d = elf_open_debugfile_by_debuglink (state, filename, debugaltlink_name, + 0, error_callback, data); + if (d >= 0) + { + int ret; + + ret = elf_add (state, filename, d, NULL, 0, base_address, + error_callback, data, fileline_fn, found_sym, + found_dwarf, &fileline_altlink, 0, 1, + debugaltlink_buildid_data, debugaltlink_buildid_size); + elf_release_view (state, &debugaltlink_view, error_callback, data); + debugaltlink_view_valid = 0; + if (ret < 0) + { + backtrace_close (d, error_callback, data); + return ret; + } + } + } + + if (debugaltlink_view_valid) + { + elf_release_view (state, &debugaltlink_view, error_callback, data); + debugaltlink_view_valid = 0; + } + + if (gnu_debugdata_view_valid) + { + int ret; + + ret = elf_uncompress_lzma (state, + ((const unsigned char *) + gnu_debugdata_view.view.data), + gnu_debugdata_size, error_callback, data, + &gnu_debugdata_uncompressed, + &gnu_debugdata_uncompressed_size); + + elf_release_view (state, &gnu_debugdata_view, error_callback, data); + gnu_debugdata_view_valid = 0; + + if (ret) + { + ret = elf_add (state, filename, -1, gnu_debugdata_uncompressed, + gnu_debugdata_uncompressed_size, base_address, + error_callback, data, fileline_fn, found_sym, + found_dwarf, NULL, 0, 0, NULL, 0); + if (ret >= 0 && descriptor >= 0) + backtrace_close(descriptor, error_callback, data); + return ret; + } + } + + /* Read all the debug sections in a single view, since they are + probably adjacent in the file. If any of sections are + uncompressed, we never release this view. */ + + min_offset = 0; + max_offset = 0; + debug_size = 0; + for (i = 0; i < (int) DEBUG_MAX; ++i) + { + off_t end; + + if (sections[i].size != 0) + { + if (min_offset == 0 || sections[i].offset < min_offset) + min_offset = sections[i].offset; + end = sections[i].offset + sections[i].size; + if (end > max_offset) + max_offset = end; + debug_size += sections[i].size; + } + if (zsections[i].size != 0) + { + if (min_offset == 0 || zsections[i].offset < min_offset) + min_offset = zsections[i].offset; + end = zsections[i].offset + zsections[i].size; + if (end > max_offset) + max_offset = end; + debug_size += zsections[i].size; + } + } + if (min_offset == 0 || max_offset == 0) + { + if (descriptor >= 0) + { + if (!backtrace_close (descriptor, error_callback, data)) + goto fail; + } + return 1; + } + + /* If the total debug section size is large, assume that there are + gaps between the sections, and read them individually. */ + + if (max_offset - min_offset < 0x20000000 + || max_offset - min_offset < debug_size + 0x10000) + { + if (!elf_get_view (state, descriptor, memory, memory_size, min_offset, + max_offset - min_offset, error_callback, data, + &debug_view)) + goto fail; + debug_view_valid = 1; + } + else + { + memset (&split_debug_view[0], 0, sizeof split_debug_view); + for (i = 0; i < (int) DEBUG_MAX; ++i) + { + struct debug_section_info *dsec; + + if (sections[i].size != 0) + dsec = §ions[i]; + else if (zsections[i].size != 0) + dsec = &zsections[i]; + else + continue; + + if (!elf_get_view (state, descriptor, memory, memory_size, + dsec->offset, dsec->size, error_callback, data, + &split_debug_view[i])) + goto fail; + split_debug_view_valid[i] = 1; + + if (sections[i].size != 0) + sections[i].data = ((const unsigned char *) + split_debug_view[i].view.data); + else + zsections[i].data = ((const unsigned char *) + split_debug_view[i].view.data); + } + } + + /* We've read all we need from the executable. */ + if (descriptor >= 0) + { + if (!backtrace_close (descriptor, error_callback, data)) + goto fail; + descriptor = -1; + } + + using_debug_view = 0; + if (debug_view_valid) + { + for (i = 0; i < (int) DEBUG_MAX; ++i) + { + if (sections[i].size == 0) + sections[i].data = NULL; + else + { + sections[i].data = ((const unsigned char *) debug_view.view.data + + (sections[i].offset - min_offset)); + ++using_debug_view; + } + + if (zsections[i].size == 0) + zsections[i].data = NULL; + else + zsections[i].data = ((const unsigned char *) debug_view.view.data + + (zsections[i].offset - min_offset)); + } + } + + /* Uncompress the old format (--compress-debug-sections=zlib-gnu). */ + + zdebug_table = NULL; + for (i = 0; i < (int) DEBUG_MAX; ++i) + { + if (sections[i].size == 0 && zsections[i].size > 0) + { + unsigned char *uncompressed_data; + size_t uncompressed_size; + + if (zdebug_table == NULL) + { + zdebug_table = ((uint16_t *) + backtrace_alloc (state, ZDEBUG_TABLE_SIZE, + error_callback, data)); + if (zdebug_table == NULL) + goto fail; + } + + uncompressed_data = NULL; + uncompressed_size = 0; + if (!elf_uncompress_zdebug (state, zsections[i].data, + zsections[i].size, zdebug_table, + error_callback, data, + &uncompressed_data, &uncompressed_size)) + goto fail; + sections[i].data = uncompressed_data; + sections[i].size = uncompressed_size; + sections[i].compressed = 0; + + if (split_debug_view_valid[i]) + { + elf_release_view (state, &split_debug_view[i], + error_callback, data); + split_debug_view_valid[i] = 0; + } + } + } + + /* Uncompress the official ELF format + (--compress-debug-sections=zlib-gabi). */ + for (i = 0; i < (int) DEBUG_MAX; ++i) + { + unsigned char *uncompressed_data; + size_t uncompressed_size; + + if (sections[i].size == 0 || !sections[i].compressed) + continue; + + if (zdebug_table == NULL) + { + zdebug_table = ((uint16_t *) + backtrace_alloc (state, ZDEBUG_TABLE_SIZE, + error_callback, data)); + if (zdebug_table == NULL) + goto fail; + } + + uncompressed_data = NULL; + uncompressed_size = 0; + if (!elf_uncompress_chdr (state, sections[i].data, sections[i].size, + zdebug_table, error_callback, data, + &uncompressed_data, &uncompressed_size)) + goto fail; + sections[i].data = uncompressed_data; + sections[i].size = uncompressed_size; + sections[i].compressed = 0; + + if (debug_view_valid) + --using_debug_view; + else if (split_debug_view_valid[i]) + { + elf_release_view (state, &split_debug_view[i], error_callback, data); + split_debug_view_valid[i] = 0; + } + } + + if (zdebug_table != NULL) + backtrace_free (state, zdebug_table, ZDEBUG_TABLE_SIZE, + error_callback, data); + + if (debug_view_valid && using_debug_view == 0) + { + elf_release_view (state, &debug_view, error_callback, data); + debug_view_valid = 0; + } + + for (i = 0; i < (int) DEBUG_MAX; ++i) + { + dwarf_sections.data[i] = sections[i].data; + dwarf_sections.size[i] = sections[i].size; + } + + if (!backtrace_dwarf_add (state, base_address, &dwarf_sections, + ehdr.e_ident[EI_DATA] == ELFDATA2MSB, + fileline_altlink, + error_callback, data, fileline_fn, + fileline_entry)) + goto fail; + + *found_dwarf = 1; + + return 1; + + fail: + if (shdrs_view_valid) + elf_release_view (state, &shdrs_view, error_callback, data); + if (names_view_valid) + elf_release_view (state, &names_view, error_callback, data); + if (symtab_view_valid) + elf_release_view (state, &symtab_view, error_callback, data); + if (strtab_view_valid) + elf_release_view (state, &strtab_view, error_callback, data); + if (debuglink_view_valid) + elf_release_view (state, &debuglink_view, error_callback, data); + if (debugaltlink_view_valid) + elf_release_view (state, &debugaltlink_view, error_callback, data); + if (gnu_debugdata_view_valid) + elf_release_view (state, &gnu_debugdata_view, error_callback, data); + if (buildid_view_valid) + elf_release_view (state, &buildid_view, error_callback, data); + if (debug_view_valid) + elf_release_view (state, &debug_view, error_callback, data); + for (i = 0; i < (int) DEBUG_MAX; ++i) + { + if (split_debug_view_valid[i]) + elf_release_view (state, &split_debug_view[i], error_callback, data); + } + if (opd) + elf_release_view (state, &opd->view, error_callback, data); + if (descriptor >= 0) + backtrace_close (descriptor, error_callback, data); + return 0; +} + +/* Data passed to phdr_callback. */ + +struct phdr_data +{ + struct backtrace_state *state; + backtrace_error_callback error_callback; + void *data; + fileline *fileline_fn; + int *found_sym; + int *found_dwarf; + const char *exe_filename; + int exe_descriptor; +}; + +/* Callback passed to dl_iterate_phdr. Load debug info from shared + libraries. */ + +static int +#ifdef __i386__ +__attribute__ ((__force_align_arg_pointer__)) +#endif +phdr_callback (struct dl_phdr_info *info, size_t size ATTRIBUTE_UNUSED, + void *pdata) +{ + struct phdr_data *pd = (struct phdr_data *) pdata; + const char *filename; + int descriptor; + int does_not_exist; + fileline elf_fileline_fn; + int found_dwarf; + + /* There is not much we can do if we don't have the module name, + unless executable is ET_DYN, where we expect the very first + phdr_callback to be for the PIE. */ + if (info->dlpi_name == NULL || info->dlpi_name[0] == '\0') + { + if (pd->exe_descriptor == -1) + return 0; + filename = pd->exe_filename; + descriptor = pd->exe_descriptor; + pd->exe_descriptor = -1; + } + else + { + if (pd->exe_descriptor != -1) + { + backtrace_close (pd->exe_descriptor, pd->error_callback, pd->data); + pd->exe_descriptor = -1; + } + + filename = info->dlpi_name; + descriptor = backtrace_open (info->dlpi_name, pd->error_callback, + pd->data, &does_not_exist); + if (descriptor < 0) + return 0; + } + + if (elf_add (pd->state, filename, descriptor, NULL, 0, info->dlpi_addr, + pd->error_callback, pd->data, &elf_fileline_fn, pd->found_sym, + &found_dwarf, NULL, 0, 0, NULL, 0)) + { + if (found_dwarf) + { + *pd->found_dwarf = 1; + *pd->fileline_fn = elf_fileline_fn; + } + } + + return 0; +} + +/* Initialize the backtrace data we need from an ELF executable. At + the ELF level, all we need to do is find the debug info + sections. */ + +int +backtrace_initialize (struct backtrace_state *state, const char *filename, + int descriptor, backtrace_error_callback error_callback, + void *data, fileline *fileline_fn) +{ + int ret; + int found_sym; + int found_dwarf; + fileline elf_fileline_fn = elf_nodebug; + struct phdr_data pd; + + ret = elf_add (state, filename, descriptor, NULL, 0, 0, error_callback, data, + &elf_fileline_fn, &found_sym, &found_dwarf, NULL, 1, 0, NULL, + 0); + if (!ret) + return 0; + + pd.state = state; + pd.error_callback = error_callback; + pd.data = data; + pd.fileline_fn = &elf_fileline_fn; + pd.found_sym = &found_sym; + pd.found_dwarf = &found_dwarf; + pd.exe_filename = filename; + pd.exe_descriptor = ret < 0 ? descriptor : -1; + + dl_iterate_phdr (phdr_callback, (void *) &pd); + + if (!state->threaded) + { + if (found_sym) + state->syminfo_fn = elf_syminfo; + else if (state->syminfo_fn == NULL) + state->syminfo_fn = elf_nosyms; + } + else + { + if (found_sym) + backtrace_atomic_store_pointer (&state->syminfo_fn, elf_syminfo); + else + (void) __sync_bool_compare_and_swap (&state->syminfo_fn, NULL, + elf_nosyms); + } + + if (!state->threaded) + *fileline_fn = state->fileline_fn; + else + *fileline_fn = backtrace_atomic_load_pointer (&state->fileline_fn); + + if (*fileline_fn == NULL || *fileline_fn == elf_nodebug) + *fileline_fn = elf_fileline_fn; + + return 1; +} diff --git a/libbacktrace/fileline.c b/libbacktrace/fileline.c new file mode 100644 index 00000000000..0472f4721ab --- /dev/null +++ b/libbacktrace/fileline.c @@ -0,0 +1,346 @@ +/* fileline.c -- Get file and line number information in a backtrace. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <sys/types.h> +#include <sys/stat.h> +#include <errno.h> +#include <fcntl.h> +#include <stdlib.h> +#include <unistd.h> + +#if defined (HAVE_KERN_PROC_ARGS) || defined (HAVE_KERN_PROC) +#include <sys/sysctl.h> +#endif + +#ifdef HAVE_MACH_O_DYLD_H +#include <mach-o/dyld.h> +#endif + +#include "backtrace.h" +#include "internal.h" + +#ifndef HAVE_GETEXECNAME +#define getexecname() NULL +#endif + +#if !defined (HAVE_KERN_PROC_ARGS) && !defined (HAVE_KERN_PROC) + +#define sysctl_exec_name1(state, error_callback, data) NULL +#define sysctl_exec_name2(state, error_callback, data) NULL + +#else /* defined (HAVE_KERN_PROC_ARGS) || |defined (HAVE_KERN_PROC) */ + +static char * +sysctl_exec_name (struct backtrace_state *state, + int mib0, int mib1, int mib2, int mib3, + backtrace_error_callback error_callback, void *data) +{ + int mib[4]; + size_t len; + char *name; + size_t rlen; + + mib[0] = mib0; + mib[1] = mib1; + mib[2] = mib2; + mib[3] = mib3; + + if (sysctl (mib, 4, NULL, &len, NULL, 0) < 0) + return NULL; + name = (char *) backtrace_alloc (state, len, error_callback, data); + if (name == NULL) + return NULL; + rlen = len; + if (sysctl (mib, 4, name, &rlen, NULL, 0) < 0) + { + backtrace_free (state, name, len, error_callback, data); + return NULL; + } + return name; +} + +#ifdef HAVE_KERN_PROC_ARGS + +static char * +sysctl_exec_name1 (struct backtrace_state *state, + backtrace_error_callback error_callback, void *data) +{ + /* This variant is used on NetBSD. */ + return sysctl_exec_name (state, CTL_KERN, KERN_PROC_ARGS, -1, + KERN_PROC_PATHNAME, error_callback, data); +} + +#else + +#define sysctl_exec_name1(state, error_callback, data) NULL + +#endif + +#ifdef HAVE_KERN_PROC + +static char * +sysctl_exec_name2 (struct backtrace_state *state, + backtrace_error_callback error_callback, void *data) +{ + /* This variant is used on FreeBSD. */ + return sysctl_exec_name (state, CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1, + error_callback, data); +} + +#else + +#define sysctl_exec_name2(state, error_callback, data) NULL + +#endif + +#endif /* defined (HAVE_KERN_PROC_ARGS) || |defined (HAVE_KERN_PROC) */ + +#ifdef HAVE_MACH_O_DYLD_H + +static char * +macho_get_executable_path (struct backtrace_state *state, + backtrace_error_callback error_callback, void *data) +{ + uint32_t len; + char *name; + + len = 0; + if (_NSGetExecutablePath (NULL, &len) == 0) + return NULL; + name = (char *) backtrace_alloc (state, len, error_callback, data); + if (name == NULL) + return NULL; + if (_NSGetExecutablePath (name, &len) != 0) + { + backtrace_free (state, name, len, error_callback, data); + return NULL; + } + return name; +} + +#else /* !defined (HAVE_MACH_O_DYLD_H) */ + +#define macho_get_executable_path(state, error_callback, data) NULL + +#endif /* !defined (HAVE_MACH_O_DYLD_H) */ + +/* Initialize the fileline information from the executable. Returns 1 + on success, 0 on failure. */ + +static int +fileline_initialize (struct backtrace_state *state, + backtrace_error_callback error_callback, void *data) +{ + int failed; + fileline fileline_fn; + int pass; + int called_error_callback; + int descriptor; + const char *filename; + char buf[64]; + + if (!state->threaded) + failed = state->fileline_initialization_failed; + else + failed = backtrace_atomic_load_int (&state->fileline_initialization_failed); + + if (failed) + { + error_callback (data, "failed to read executable information", -1); + return 0; + } + + if (!state->threaded) + fileline_fn = state->fileline_fn; + else + fileline_fn = backtrace_atomic_load_pointer (&state->fileline_fn); + if (fileline_fn != NULL) + return 1; + + /* We have not initialized the information. Do it now. */ + + descriptor = -1; + called_error_callback = 0; + for (pass = 0; pass < 8; ++pass) + { + int does_not_exist; + + switch (pass) + { + case 0: + filename = state->filename; + break; + case 1: + filename = getexecname (); + break; + case 2: + filename = "/proc/self/exe"; + break; + case 3: + filename = "/proc/curproc/file"; + break; + case 4: + snprintf (buf, sizeof (buf), "/proc/%ld/object/a.out", + (long) getpid ()); + filename = buf; + break; + case 5: + filename = sysctl_exec_name1 (state, error_callback, data); + break; + case 6: + filename = sysctl_exec_name2 (state, error_callback, data); + break; + case 7: + filename = macho_get_executable_path (state, error_callback, data); + break; + default: + abort (); + } + + if (filename == NULL) + continue; + + descriptor = backtrace_open (filename, error_callback, data, + &does_not_exist); + if (descriptor < 0 && !does_not_exist) + { + called_error_callback = 1; + break; + } + if (descriptor >= 0) + break; + } + + if (descriptor < 0) + { + if (!called_error_callback) + { + if (state->filename != NULL) + error_callback (data, state->filename, ENOENT); + else + error_callback (data, + "libbacktrace could not find executable to open", + 0); + } + failed = 1; + } + + if (!failed) + { + if (!backtrace_initialize (state, filename, descriptor, error_callback, + data, &fileline_fn)) + failed = 1; + } + + if (failed) + { + if (!state->threaded) + state->fileline_initialization_failed = 1; + else + backtrace_atomic_store_int (&state->fileline_initialization_failed, 1); + return 0; + } + + if (!state->threaded) + state->fileline_fn = fileline_fn; + else + { + backtrace_atomic_store_pointer (&state->fileline_fn, fileline_fn); + + /* Note that if two threads initialize at once, one of the data + sets may be leaked. */ + } + + return 1; +} + +/* Given a PC, find the file name, line number, and function name. */ + +int +backtrace_pcinfo (struct backtrace_state *state, uintptr_t pc, + backtrace_full_callback callback, + backtrace_error_callback error_callback, void *data) +{ + if (!fileline_initialize (state, error_callback, data)) + return 0; + + if (state->fileline_initialization_failed) + return 0; + + return state->fileline_fn (state, pc, callback, error_callback, data); +} + +/* Given a PC, find the symbol for it, and its value. */ + +int +backtrace_syminfo (struct backtrace_state *state, uintptr_t pc, + backtrace_syminfo_callback callback, + backtrace_error_callback error_callback, void *data) +{ + if (!fileline_initialize (state, error_callback, data)) + return 0; + + if (state->fileline_initialization_failed) + return 0; + + state->syminfo_fn (state, pc, callback, error_callback, data); + return 1; +} + +/* A backtrace_syminfo_callback that can call into a + backtrace_full_callback, used when we have a symbol table but no + debug info. */ + +void +backtrace_syminfo_to_full_callback (void *data, uintptr_t pc, + const char *symname, + uintptr_t symval ATTRIBUTE_UNUSED, + uintptr_t symsize ATTRIBUTE_UNUSED) +{ + struct backtrace_call_full *bdata = (struct backtrace_call_full *) data; + + bdata->ret = bdata->full_callback (bdata->full_data, pc, NULL, 0, symname); +} + +/* An error callback that corresponds to + backtrace_syminfo_to_full_callback. */ + +void +backtrace_syminfo_to_full_error_callback (void *data, const char *msg, + int errnum) +{ + struct backtrace_call_full *bdata = (struct backtrace_call_full *) data; + + bdata->full_error_callback (bdata->full_data, msg, errnum); +} diff --git a/libbacktrace/filetype.awk b/libbacktrace/filetype.awk new file mode 100644 index 00000000000..1eefa7e72f0 --- /dev/null +++ b/libbacktrace/filetype.awk @@ -0,0 +1,13 @@ +# An awk script to determine the type of a file. +/^\177ELF\001/ { if (NR == 1) { print "elf32"; exit } } +/^\177ELF\002/ { if (NR == 1) { print "elf64"; exit } } +/^\114\001/ { if (NR == 1) { print "pecoff"; exit } } +/^\144\206/ { if (NR == 1) { print "pecoff"; exit } } +/^\001\337/ { if (NR == 1) { print "xcoff32"; exit } } +/^\001\367/ { if (NR == 1) { print "xcoff64"; exit } } +/^\376\355\372\316/ { if (NR == 1) { print "macho"; exit } } +/^\316\372\355\376/ { if (NR == 1) { print "macho"; exit } } +/^\376\355\372\317/ { if (NR == 1) { print "macho"; exit } } +/^\317\372\355\376/ { if (NR == 1) { print "macho"; exit } } +/^\312\376\272\276/ { if (NR == 1) { print "macho"; exit } } +/^\276\272\376\312/ { if (NR == 1) { print "macho"; exit } } diff --git a/libbacktrace/install-debuginfo-for-buildid.sh.in b/libbacktrace/install-debuginfo-for-buildid.sh.in new file mode 100644 index 00000000000..91dfdfe89a4 --- /dev/null +++ b/libbacktrace/install-debuginfo-for-buildid.sh.in @@ -0,0 +1,65 @@ +#!/bin/sh + +# install-debug-info-for-buildid.sh -- Helper script for libbacktrace library +# testing. +# Copyright (C) 2019-2021 Free Software Foundation, Inc. + +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: + +# (1) Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. + +# (2) Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. + +# (3) The name of the author may not be used to +# endorse or promote products derived from this software without +# specific prior written permission. + +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +# DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +# Extract build-id from src, and copy debug info of src to +# $build_id_dir/aa/bb...zz.debug. + +set -e + +sed=@SED@ +awk=@AWK@ +grep=@GREP@ +objcopy=@OBJCOPY@ +readelf=@READELF@ +mkdir_p="@MKDIR_P@" + +build_id_dir="$1" +src="$2" + +buildid=$(LANG=C $readelf -n $src \ + | $grep "Build ID" \ + | $awk '{print $3}') + +prefix=$(echo $buildid \ + | $sed 's/^\(.\{2\}\).*/\1/') + +remainder=$(echo $buildid \ + | $sed 's/^.\{2\}//') + +dir=$build_id_dir/$prefix +dst=$dir/$remainder.debug + +$mkdir_p $dir + +$objcopy --only-keep-debug $src $dst diff --git a/libbacktrace/instrumented_alloc.c b/libbacktrace/instrumented_alloc.c new file mode 100644 index 00000000000..13af81a6dcb --- /dev/null +++ b/libbacktrace/instrumented_alloc.c @@ -0,0 +1,114 @@ +/* instrumented_alloc.c -- Memory allocation instrumented to fail when + requested, for testing purposes. + Copyright (C) 2018-2021 Free Software Foundation, Inc. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +/* Include all the header files of alloc here, to make sure they're not + processed when including alloc.c below, such that the redefinitions of malloc + and realloc are only effective in alloc.c itself. This does not work for + config.h, because it's not wrapped in "#ifndef CONFIG_H\n#define CONFIG_H" + and "#endif" but that does not seem to be harmful. */ + +#include "config.h" + +#include <errno.h> +#include <stdlib.h> +#include <sys/types.h> +#include <inttypes.h> + +#include "backtrace.h" +#include "internal.h" + +extern void *instrumented_malloc (size_t size); +extern void *instrumented_realloc (void *ptr, size_t size); + +#define malloc instrumented_malloc +#define realloc instrumented_realloc +#include "alloc.c" +#undef malloc +#undef realloc + +static uint64_t nr_allocs = 0; +static uint64_t fail_at_alloc = 0; + +extern int at_fail_alloc_p (void); +extern uint64_t get_nr_allocs (void); +extern void set_fail_at_alloc (uint64_t); + +void * +instrumented_malloc (size_t size) +{ + void *res; + + if (at_fail_alloc_p ()) + return NULL; + + res = malloc (size); + if (res != NULL) + nr_allocs++; + + return res; +} + +void * +instrumented_realloc (void *ptr, size_t size) +{ + void *res; + + if (size != 0) + { + if (at_fail_alloc_p ()) + return NULL; + } + + res = realloc (ptr, size); + if (res != NULL) + nr_allocs++; + + return res; +} + +int +at_fail_alloc_p (void) +{ + return fail_at_alloc == nr_allocs + 1; +} + +uint64_t +get_nr_allocs (void) +{ + return nr_allocs; +} + +void +set_fail_at_alloc (uint64_t nr) +{ + fail_at_alloc = nr; +} diff --git a/libbacktrace/internal.h b/libbacktrace/internal.h new file mode 100644 index 00000000000..bb481f373bf --- /dev/null +++ b/libbacktrace/internal.h @@ -0,0 +1,380 @@ +/* internal.h -- Internal header file for stack backtrace library. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#ifndef BACKTRACE_INTERNAL_H +#define BACKTRACE_INTERNAL_H + +/* We assume that <sys/types.h> and "backtrace.h" have already been + included. */ + +#ifndef GCC_VERSION +# define GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__) +#endif + +#if (GCC_VERSION < 2007) +# define __attribute__(x) +#endif + +#ifndef ATTRIBUTE_UNUSED +# define ATTRIBUTE_UNUSED __attribute__ ((__unused__)) +#endif + +#ifndef ATTRIBUTE_MALLOC +# if (GCC_VERSION >= 2096) +# define ATTRIBUTE_MALLOC __attribute__ ((__malloc__)) +# else +# define ATTRIBUTE_MALLOC +# endif +#endif + +#ifndef ATTRIBUTE_FALLTHROUGH +# if (GCC_VERSION >= 7000) +# define ATTRIBUTE_FALLTHROUGH __attribute__ ((__fallthrough__)) +# else +# define ATTRIBUTE_FALLTHROUGH +# endif +#endif + +#ifndef HAVE_SYNC_FUNCTIONS + +/* Define out the sync functions. These should never be called if + they are not available. */ + +#define __sync_bool_compare_and_swap(A, B, C) (abort(), 1) +#define __sync_lock_test_and_set(A, B) (abort(), 0) +#define __sync_lock_release(A) abort() + +#endif /* !defined (HAVE_SYNC_FUNCTIONS) */ + +#ifdef HAVE_ATOMIC_FUNCTIONS + +/* We have the atomic builtin functions. */ + +#define backtrace_atomic_load_pointer(p) \ + __atomic_load_n ((p), __ATOMIC_ACQUIRE) +#define backtrace_atomic_load_int(p) \ + __atomic_load_n ((p), __ATOMIC_ACQUIRE) +#define backtrace_atomic_store_pointer(p, v) \ + __atomic_store_n ((p), (v), __ATOMIC_RELEASE) +#define backtrace_atomic_store_size_t(p, v) \ + __atomic_store_n ((p), (v), __ATOMIC_RELEASE) +#define backtrace_atomic_store_int(p, v) \ + __atomic_store_n ((p), (v), __ATOMIC_RELEASE) + +#else /* !defined (HAVE_ATOMIC_FUNCTIONS) */ +#ifdef HAVE_SYNC_FUNCTIONS + +/* We have the sync functions but not the atomic functions. Define + the atomic ones in terms of the sync ones. */ + +extern void *backtrace_atomic_load_pointer (void *); +extern int backtrace_atomic_load_int (int *); +extern void backtrace_atomic_store_pointer (void *, void *); +extern void backtrace_atomic_store_size_t (size_t *, size_t); +extern void backtrace_atomic_store_int (int *, int); + +#else /* !defined (HAVE_SYNC_FUNCTIONS) */ + +/* We have neither the sync nor the atomic functions. These will + never be called. */ + +#define backtrace_atomic_load_pointer(p) (abort(), (void *) NULL) +#define backtrace_atomic_load_int(p) (abort(), 0) +#define backtrace_atomic_store_pointer(p, v) abort() +#define backtrace_atomic_store_size_t(p, v) abort() +#define backtrace_atomic_store_int(p, v) abort() + +#endif /* !defined (HAVE_SYNC_FUNCTIONS) */ +#endif /* !defined (HAVE_ATOMIC_FUNCTIONS) */ + +/* The type of the function that collects file/line information. This + is like backtrace_pcinfo. */ + +typedef int (*fileline) (struct backtrace_state *state, uintptr_t pc, + backtrace_full_callback callback, + backtrace_error_callback error_callback, void *data); + +/* The type of the function that collects symbol information. This is + like backtrace_syminfo. */ + +typedef void (*syminfo) (struct backtrace_state *state, uintptr_t pc, + backtrace_syminfo_callback callback, + backtrace_error_callback error_callback, void *data); + +/* What the backtrace state pointer points to. */ + +struct backtrace_state +{ + /* The name of the executable. */ + const char *filename; + /* Non-zero if threaded. */ + int threaded; + /* The master lock for fileline_fn, fileline_data, syminfo_fn, + syminfo_data, fileline_initialization_failed and everything the + data pointers point to. */ + void *lock; + /* The function that returns file/line information. */ + fileline fileline_fn; + /* The data to pass to FILELINE_FN. */ + void *fileline_data; + /* The function that returns symbol information. */ + syminfo syminfo_fn; + /* The data to pass to SYMINFO_FN. */ + void *syminfo_data; + /* Whether initializing the file/line information failed. */ + int fileline_initialization_failed; + /* The lock for the freelist. */ + int lock_alloc; + /* The freelist when using mmap. */ + struct backtrace_freelist_struct *freelist; +}; + +/* Open a file for reading. Returns -1 on error. If DOES_NOT_EXIST + is not NULL, *DOES_NOT_EXIST will be set to 0 normally and set to 1 + if the file does not exist. If the file does not exist and + DOES_NOT_EXIST is not NULL, the function will return -1 and will + not call ERROR_CALLBACK. On other errors, or if DOES_NOT_EXIST is + NULL, the function will call ERROR_CALLBACK before returning. */ +extern int backtrace_open (const char *filename, + backtrace_error_callback error_callback, + void *data, + int *does_not_exist); + +/* A view of the contents of a file. This supports mmap when + available. A view will remain in memory even after backtrace_close + is called on the file descriptor from which the view was + obtained. */ + +struct backtrace_view +{ + /* The data that the caller requested. */ + const void *data; + /* The base of the view. */ + void *base; + /* The total length of the view. */ + size_t len; +}; + +/* Create a view of SIZE bytes from DESCRIPTOR at OFFSET. Store the + result in *VIEW. Returns 1 on success, 0 on error. */ +extern int backtrace_get_view (struct backtrace_state *state, int descriptor, + off_t offset, uint64_t size, + backtrace_error_callback error_callback, + void *data, struct backtrace_view *view); + +/* Release a view created by backtrace_get_view. */ +extern void backtrace_release_view (struct backtrace_state *state, + struct backtrace_view *view, + backtrace_error_callback error_callback, + void *data); + +/* Close a file opened by backtrace_open. Returns 1 on success, 0 on + error. */ + +extern int backtrace_close (int descriptor, + backtrace_error_callback error_callback, + void *data); + +/* Sort without using memory. */ + +extern void backtrace_qsort (void *base, size_t count, size_t size, + int (*compar) (const void *, const void *)); + +/* Allocate memory. This is like malloc. If ERROR_CALLBACK is NULL, + this does not report an error, it just returns NULL. */ + +extern void *backtrace_alloc (struct backtrace_state *state, size_t size, + backtrace_error_callback error_callback, + void *data) ATTRIBUTE_MALLOC; + +/* Free memory allocated by backtrace_alloc. If ERROR_CALLBACK is + NULL, this does not report an error. */ + +extern void backtrace_free (struct backtrace_state *state, void *mem, + size_t size, + backtrace_error_callback error_callback, + void *data); + +/* A growable vector of some struct. This is used for more efficient + allocation when we don't know the final size of some group of data + that we want to represent as an array. */ + +struct backtrace_vector +{ + /* The base of the vector. */ + void *base; + /* The number of bytes in the vector. */ + size_t size; + /* The number of bytes available at the current allocation. */ + size_t alc; +}; + +/* Grow VEC by SIZE bytes. Return a pointer to the newly allocated + bytes. Note that this may move the entire vector to a new memory + location. Returns NULL on failure. */ + +extern void *backtrace_vector_grow (struct backtrace_state *state, size_t size, + backtrace_error_callback error_callback, + void *data, + struct backtrace_vector *vec); + +/* Finish the current allocation on VEC. Prepare to start a new + allocation. The finished allocation will never be freed. Returns + a pointer to the base of the finished entries, or NULL on + failure. */ + +extern void* backtrace_vector_finish (struct backtrace_state *state, + struct backtrace_vector *vec, + backtrace_error_callback error_callback, + void *data); + +/* Release any extra space allocated for VEC. This may change + VEC->base. Returns 1 on success, 0 on failure. */ + +extern int backtrace_vector_release (struct backtrace_state *state, + struct backtrace_vector *vec, + backtrace_error_callback error_callback, + void *data); + +/* Free the space managed by VEC. This will reset VEC. */ + +static inline void +backtrace_vector_free (struct backtrace_state *state, + struct backtrace_vector *vec, + backtrace_error_callback error_callback, void *data) +{ + vec->alc += vec->size; + vec->size = 0; + backtrace_vector_release (state, vec, error_callback, data); +} + +/* Read initial debug data from a descriptor, and set the + fileline_data, syminfo_fn, and syminfo_data fields of STATE. + Return the fileln_fn field in *FILELN_FN--this is done this way so + that the synchronization code is only implemented once. This is + called after the descriptor has first been opened. It will close + the descriptor if it is no longer needed. Returns 1 on success, 0 + on error. There will be multiple implementations of this function, + for different file formats. Each system will compile the + appropriate one. */ + +extern int backtrace_initialize (struct backtrace_state *state, + const char *filename, + int descriptor, + backtrace_error_callback error_callback, + void *data, + fileline *fileline_fn); + +/* An enum for the DWARF sections we care about. */ + +enum dwarf_section +{ + DEBUG_INFO, + DEBUG_LINE, + DEBUG_ABBREV, + DEBUG_RANGES, + DEBUG_STR, + DEBUG_ADDR, + DEBUG_STR_OFFSETS, + DEBUG_LINE_STR, + DEBUG_RNGLISTS, + + DEBUG_MAX +}; + +/* Data for the DWARF sections we care about. */ + +struct dwarf_sections +{ + const unsigned char *data[DEBUG_MAX]; + size_t size[DEBUG_MAX]; +}; + +/* DWARF data read from a file, used for .gnu_debugaltlink. */ + +struct dwarf_data; + +/* Add file/line information for a DWARF module. */ + +extern int backtrace_dwarf_add (struct backtrace_state *state, + uintptr_t base_address, + const struct dwarf_sections *dwarf_sections, + int is_bigendian, + struct dwarf_data *fileline_altlink, + backtrace_error_callback error_callback, + void *data, fileline *fileline_fn, + struct dwarf_data **fileline_entry); + +/* A data structure to pass to backtrace_syminfo_to_full. */ + +struct backtrace_call_full +{ + backtrace_full_callback full_callback; + backtrace_error_callback full_error_callback; + void *full_data; + int ret; +}; + +/* A backtrace_syminfo_callback that can call into a + backtrace_full_callback, used when we have a symbol table but no + debug info. */ + +extern void backtrace_syminfo_to_full_callback (void *data, uintptr_t pc, + const char *symname, + uintptr_t symval, + uintptr_t symsize); + +/* An error callback that corresponds to + backtrace_syminfo_to_full_callback. */ + +extern void backtrace_syminfo_to_full_error_callback (void *, const char *, + int); + +/* A test-only hook for elf_uncompress_zdebug. */ + +extern int backtrace_uncompress_zdebug (struct backtrace_state *, + const unsigned char *compressed, + size_t compressed_size, + backtrace_error_callback, void *data, + unsigned char **uncompressed, + size_t *uncompressed_size); + +/* A test-only hook for elf_uncompress_lzma. */ + +extern int backtrace_uncompress_lzma (struct backtrace_state *, + const unsigned char *compressed, + size_t compressed_size, + backtrace_error_callback, void *data, + unsigned char **uncompressed, + size_t *uncompressed_size); + +#endif diff --git a/libbacktrace/macho.c b/libbacktrace/macho.c new file mode 100644 index 00000000000..66e101e0a4b --- /dev/null +++ b/libbacktrace/macho.c @@ -0,0 +1,1355 @@ +/* elf.c -- Get debug data from a Mach-O file for backtraces. + Copyright (C) 2020-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <sys/types.h> +#include <dirent.h> +#include <stdlib.h> +#include <string.h> + +#ifdef HAVE_MACH_O_DYLD_H +#include <mach-o/dyld.h> +#endif + +#include "backtrace.h" +#include "internal.h" + +/* Mach-O file header for a 32-bit executable. */ + +struct macho_header_32 +{ + uint32_t magic; /* Magic number (MACH_O_MAGIC_32) */ + uint32_t cputype; /* CPU type */ + uint32_t cpusubtype; /* CPU subtype */ + uint32_t filetype; /* Type of file (object, executable) */ + uint32_t ncmds; /* Number of load commands */ + uint32_t sizeofcmds; /* Total size of load commands */ + uint32_t flags; /* Flags for special features */ +}; + +/* Mach-O file header for a 64-bit executable. */ + +struct macho_header_64 +{ + uint32_t magic; /* Magic number (MACH_O_MAGIC_64) */ + uint32_t cputype; /* CPU type */ + uint32_t cpusubtype; /* CPU subtype */ + uint32_t filetype; /* Type of file (object, executable) */ + uint32_t ncmds; /* Number of load commands */ + uint32_t sizeofcmds; /* Total size of load commands */ + uint32_t flags; /* Flags for special features */ + uint32_t reserved; /* Reserved */ +}; + +/* Mach-O file header for a fat executable. */ + +struct macho_header_fat +{ + uint32_t magic; /* Magic number (MACH_O_MH_(MAGIC|CIGAM)_FAT(_64)?) */ + uint32_t nfat_arch; /* Number of components */ +}; + +/* Values for the header magic field. */ + +#define MACH_O_MH_MAGIC_32 0xfeedface +#define MACH_O_MH_MAGIC_64 0xfeedfacf +#define MACH_O_MH_MAGIC_FAT 0xcafebabe +#define MACH_O_MH_CIGAM_FAT 0xbebafeca +#define MACH_O_MH_MAGIC_FAT_64 0xcafebabf +#define MACH_O_MH_CIGAM_FAT_64 0xbfbafeca + +/* Value for the header filetype field. */ + +#define MACH_O_MH_EXECUTE 0x02 +#define MACH_O_MH_DYLIB 0x06 +#define MACH_O_MH_DSYM 0x0a + +/* A component of a fat file. A fat file starts with a + macho_header_fat followed by nfat_arch instances of this + struct. */ + +struct macho_fat_arch +{ + uint32_t cputype; /* CPU type */ + uint32_t cpusubtype; /* CPU subtype */ + uint32_t offset; /* File offset of this entry */ + uint32_t size; /* Size of this entry */ + uint32_t align; /* Alignment of this entry */ +}; + +/* A component of a 64-bit fat file. This is used if the magic field + is MAGIC_FAT_64. This is only used when some file size or file + offset is too large to represent in the 32-bit format. */ + +struct macho_fat_arch_64 +{ + uint32_t cputype; /* CPU type */ + uint32_t cpusubtype; /* CPU subtype */ + uint64_t offset; /* File offset of this entry */ + uint64_t size; /* Size of this entry */ + uint32_t align; /* Alignment of this entry */ + uint32_t reserved; /* Reserved */ +}; + +/* Values for the fat_arch cputype field (and the header cputype + field). */ + +#define MACH_O_CPU_ARCH_ABI64 0x01000000 + +#define MACH_O_CPU_TYPE_X86 7 +#define MACH_O_CPU_TYPE_ARM 12 +#define MACH_O_CPU_TYPE_PPC 18 + +#define MACH_O_CPU_TYPE_X86_64 (MACH_O_CPU_TYPE_X86 | MACH_O_CPU_ARCH_ABI64) +#define MACH_O_CPU_TYPE_ARM64 (MACH_O_CPU_TYPE_ARM | MACH_O_CPU_ARCH_ABI64) +#define MACH_O_CPU_TYPE_PPC64 (MACH_O_CPU_TYPE_PPC | MACH_O_CPU_ARCH_ABI64) + +/* The header of a load command. */ + +struct macho_load_command +{ + uint32_t cmd; /* The type of load command */ + uint32_t cmdsize; /* Size in bytes of the entire command */ +}; + +/* Values for the load_command cmd field. */ + +#define MACH_O_LC_SEGMENT 0x01 +#define MACH_O_LC_SYMTAB 0x02 +#define MACH_O_LC_SEGMENT_64 0x19 +#define MACH_O_LC_UUID 0x1b + +/* The length of a section of segment name. */ + +#define MACH_O_NAMELEN (16) + +/* LC_SEGMENT load command. */ + +struct macho_segment_command +{ + uint32_t cmd; /* The type of load command (LC_SEGMENT) */ + uint32_t cmdsize; /* Size in bytes of the entire command */ + char segname[MACH_O_NAMELEN]; /* Segment name */ + uint32_t vmaddr; /* Virtual memory address */ + uint32_t vmsize; /* Virtual memory size */ + uint32_t fileoff; /* Offset of data to be mapped */ + uint32_t filesize; /* Size of data in file */ + uint32_t maxprot; /* Maximum permitted virtual protection */ + uint32_t initprot; /* Initial virtual memory protection */ + uint32_t nsects; /* Number of sections in this segment */ + uint32_t flags; /* Flags */ +}; + +/* LC_SEGMENT_64 load command. */ + +struct macho_segment_64_command +{ + uint32_t cmd; /* The type of load command (LC_SEGMENT) */ + uint32_t cmdsize; /* Size in bytes of the entire command */ + char segname[MACH_O_NAMELEN]; /* Segment name */ + uint64_t vmaddr; /* Virtual memory address */ + uint64_t vmsize; /* Virtual memory size */ + uint64_t fileoff; /* Offset of data to be mapped */ + uint64_t filesize; /* Size of data in file */ + uint32_t maxprot; /* Maximum permitted virtual protection */ + uint32_t initprot; /* Initial virtual memory protection */ + uint32_t nsects; /* Number of sections in this segment */ + uint32_t flags; /* Flags */ +}; + +/* LC_SYMTAB load command. */ + +struct macho_symtab_command +{ + uint32_t cmd; /* The type of load command (LC_SEGMENT) */ + uint32_t cmdsize; /* Size in bytes of the entire command */ + uint32_t symoff; /* File offset of symbol table */ + uint32_t nsyms; /* Number of symbols */ + uint32_t stroff; /* File offset of string table */ + uint32_t strsize; /* String table size */ +}; + +/* The length of a Mach-O uuid. */ + +#define MACH_O_UUID_LEN (16) + +/* LC_UUID load command. */ + +struct macho_uuid_command +{ + uint32_t cmd; /* Type of load command (LC_UUID) */ + uint32_t cmdsize; /* Size in bytes of command */ + unsigned char uuid[MACH_O_UUID_LEN]; /* UUID */ +}; + +/* 32-bit section header within a LC_SEGMENT segment. */ + +struct macho_section +{ + char sectname[MACH_O_NAMELEN]; /* Section name */ + char segment[MACH_O_NAMELEN]; /* Segment of this section */ + uint32_t addr; /* Address in memory */ + uint32_t size; /* Section size */ + uint32_t offset; /* File offset */ + uint32_t align; /* Log2 of section alignment */ + uint32_t reloff; /* File offset of relocations */ + uint32_t nreloc; /* Number of relocs for this section */ + uint32_t flags; /* Flags */ + uint32_t reserved1; + uint32_t reserved2; +}; + +/* 64-bit section header within a LC_SEGMENT_64 segment. */ + +struct macho_section_64 +{ + char sectname[MACH_O_NAMELEN]; /* Section name */ + char segment[MACH_O_NAMELEN]; /* Segment of this section */ + uint64_t addr; /* Address in memory */ + uint64_t size; /* Section size */ + uint32_t offset; /* File offset */ + uint32_t align; /* Log2 of section alignment */ + uint32_t reloff; /* File offset of section relocations */ + uint32_t nreloc; /* Number of relocs for this section */ + uint32_t flags; /* Flags */ + uint32_t reserved1; + uint32_t reserved2; + uint32_t reserved3; +}; + +/* 32-bit symbol data. */ + +struct macho_nlist +{ + uint32_t n_strx; /* Index of name in string table */ + uint8_t n_type; /* Type flag */ + uint8_t n_sect; /* Section number */ + uint16_t n_desc; /* Stabs description field */ + uint32_t n_value; /* Value */ +}; + +/* 64-bit symbol data. */ + +struct macho_nlist_64 +{ + uint32_t n_strx; /* Index of name in string table */ + uint8_t n_type; /* Type flag */ + uint8_t n_sect; /* Section number */ + uint16_t n_desc; /* Stabs description field */ + uint64_t n_value; /* Value */ +}; + +/* Value found in nlist n_type field. */ + +#define MACH_O_N_EXT 0x01 /* Extern symbol */ +#define MACH_O_N_ABS 0x02 /* Absolute symbol */ +#define MACH_O_N_SECT 0x0e /* Defined in section */ + +#define MACH_O_N_TYPE 0x0e /* Mask for type bits */ +#define MACH_O_N_STAB 0xe0 /* Stabs debugging symbol */ + +/* Information we keep for a Mach-O symbol. */ + +struct macho_symbol +{ + const char *name; /* Symbol name */ + uintptr_t address; /* Symbol address */ +}; + +/* Information to pass to macho_syminfo. */ + +struct macho_syminfo_data +{ + struct macho_syminfo_data *next; /* Next module */ + struct macho_symbol *symbols; /* Symbols sorted by address */ + size_t count; /* Number of symbols */ +}; + +/* Names of sections, indexed by enum dwarf_section in internal.h. */ + +static const char * const dwarf_section_names[DEBUG_MAX] = +{ + "__debug_info", + "__debug_line", + "__debug_abbrev", + "__debug_ranges", + "__debug_str", + "", /* DEBUG_ADDR */ + "__debug_str_offs", + "", /* DEBUG_LINE_STR */ + "__debug_rnglists" +}; + +/* Forward declaration. */ + +static int macho_add (struct backtrace_state *, const char *, int, off_t, + const unsigned char *, uintptr_t, int, + backtrace_error_callback, void *, fileline *, int *); + +/* A dummy callback function used when we can't find any debug info. */ + +static int +macho_nodebug (struct backtrace_state *state ATTRIBUTE_UNUSED, + uintptr_t pc ATTRIBUTE_UNUSED, + backtrace_full_callback callback ATTRIBUTE_UNUSED, + backtrace_error_callback error_callback, void *data) +{ + error_callback (data, "no debug info in Mach-O executable", -1); + return 0; +} + +/* A dummy callback function used when we can't find a symbol + table. */ + +static void +macho_nosyms (struct backtrace_state *state ATTRIBUTE_UNUSED, + uintptr_t addr ATTRIBUTE_UNUSED, + backtrace_syminfo_callback callback ATTRIBUTE_UNUSED, + backtrace_error_callback error_callback, void *data) +{ + error_callback (data, "no symbol table in Mach-O executable", -1); +} + +/* Add a single DWARF section to DWARF_SECTIONS, if we need the + section. Returns 1 on success, 0 on failure. */ + +static int +macho_add_dwarf_section (struct backtrace_state *state, int descriptor, + const char *sectname, uint32_t offset, uint64_t size, + backtrace_error_callback error_callback, void *data, + struct dwarf_sections *dwarf_sections) +{ + int i; + + for (i = 0; i < (int) DEBUG_MAX; ++i) + { + if (dwarf_section_names[i][0] != '\0' + && strncmp (sectname, dwarf_section_names[i], MACH_O_NAMELEN) == 0) + { + struct backtrace_view section_view; + + /* FIXME: Perhaps it would be better to try to use a single + view to read all the DWARF data, as we try to do for + ELF. */ + + if (!backtrace_get_view (state, descriptor, offset, size, + error_callback, data, §ion_view)) + return 0; + dwarf_sections->data[i] = (const unsigned char *) section_view.data; + dwarf_sections->size[i] = size; + break; + } + } + return 1; +} + +/* Collect DWARF sections from a DWARF segment. Returns 1 on success, + 0 on failure. */ + +static int +macho_add_dwarf_segment (struct backtrace_state *state, int descriptor, + off_t offset, unsigned int cmd, const char *psecs, + size_t sizesecs, unsigned int nsects, + backtrace_error_callback error_callback, void *data, + struct dwarf_sections *dwarf_sections) +{ + size_t sec_header_size; + size_t secoffset; + unsigned int i; + + switch (cmd) + { + case MACH_O_LC_SEGMENT: + sec_header_size = sizeof (struct macho_section); + break; + case MACH_O_LC_SEGMENT_64: + sec_header_size = sizeof (struct macho_section_64); + break; + default: + abort (); + } + + secoffset = 0; + for (i = 0; i < nsects; ++i) + { + if (secoffset + sec_header_size > sizesecs) + { + error_callback (data, "section overflow withing segment", 0); + return 0; + } + + switch (cmd) + { + case MACH_O_LC_SEGMENT: + { + struct macho_section section; + + memcpy (§ion, psecs + secoffset, sizeof section); + macho_add_dwarf_section (state, descriptor, section.sectname, + offset + section.offset, section.size, + error_callback, data, dwarf_sections); + } + break; + + case MACH_O_LC_SEGMENT_64: + { + struct macho_section_64 section; + + memcpy (§ion, psecs + secoffset, sizeof section); + macho_add_dwarf_section (state, descriptor, section.sectname, + offset + section.offset, section.size, + error_callback, data, dwarf_sections); + } + break; + + default: + abort (); + } + + secoffset += sec_header_size; + } + + return 1; +} + +/* Compare struct macho_symbol for qsort. */ + +static int +macho_symbol_compare (const void *v1, const void *v2) +{ + const struct macho_symbol *m1 = (const struct macho_symbol *) v1; + const struct macho_symbol *m2 = (const struct macho_symbol *) v2; + + if (m1->address < m2->address) + return -1; + else if (m1->address > m2->address) + return 1; + else + return 0; +} + +/* Compare an address against a macho_symbol for bsearch. We allocate + one extra entry in the array so that this can safely look at the + next entry. */ + +static int +macho_symbol_search (const void *vkey, const void *ventry) +{ + const uintptr_t *key = (const uintptr_t *) vkey; + const struct macho_symbol *entry = (const struct macho_symbol *) ventry; + uintptr_t addr; + + addr = *key; + if (addr < entry->address) + return -1; + else if (entry->name[0] == '\0' + && entry->address == ~(uintptr_t) 0) + return -1; + else if ((entry + 1)->name[0] == '\0' + && (entry + 1)->address == ~(uintptr_t) 0) + return -1; + else if (addr >= (entry + 1)->address) + return 1; + else + return 0; +} + +/* Return whether the symbol type field indicates a symbol table entry + that we care about: a function or data symbol. */ + +static int +macho_defined_symbol (uint8_t type) +{ + if ((type & MACH_O_N_STAB) != 0) + return 0; + if ((type & MACH_O_N_EXT) != 0) + return 0; + switch (type & MACH_O_N_TYPE) + { + case MACH_O_N_ABS: + return 1; + case MACH_O_N_SECT: + return 1; + default: + return 0; + } +} + +/* Add symbol table information for a Mach-O file. */ + +static int +macho_add_symtab (struct backtrace_state *state, int descriptor, + uintptr_t base_address, int is_64, + off_t symoff, unsigned int nsyms, off_t stroff, + unsigned int strsize, + backtrace_error_callback error_callback, void *data) +{ + size_t symsize; + struct backtrace_view sym_view; + int sym_view_valid; + struct backtrace_view str_view; + int str_view_valid; + size_t ndefs; + size_t symtaboff; + unsigned int i; + size_t macho_symbol_size; + struct macho_symbol *macho_symbols; + unsigned int j; + struct macho_syminfo_data *sdata; + + sym_view_valid = 0; + str_view_valid = 0; + macho_symbol_size = 0; + macho_symbols = NULL; + + if (is_64) + symsize = sizeof (struct macho_nlist_64); + else + symsize = sizeof (struct macho_nlist); + + if (!backtrace_get_view (state, descriptor, symoff, nsyms * symsize, + error_callback, data, &sym_view)) + goto fail; + sym_view_valid = 1; + + if (!backtrace_get_view (state, descriptor, stroff, strsize, + error_callback, data, &str_view)) + return 0; + str_view_valid = 1; + + ndefs = 0; + symtaboff = 0; + for (i = 0; i < nsyms; ++i, symtaboff += symsize) + { + if (is_64) + { + struct macho_nlist_64 nlist; + + memcpy (&nlist, (const char *) sym_view.data + symtaboff, + sizeof nlist); + if (macho_defined_symbol (nlist.n_type)) + ++ndefs; + } + else + { + struct macho_nlist nlist; + + memcpy (&nlist, (const char *) sym_view.data + symtaboff, + sizeof nlist); + if (macho_defined_symbol (nlist.n_type)) + ++ndefs; + } + } + + /* Add 1 to ndefs to make room for a sentinel. */ + macho_symbol_size = (ndefs + 1) * sizeof (struct macho_symbol); + macho_symbols = ((struct macho_symbol *) + backtrace_alloc (state, macho_symbol_size, error_callback, + data)); + if (macho_symbols == NULL) + goto fail; + + j = 0; + symtaboff = 0; + for (i = 0; i < nsyms; ++i, symtaboff += symsize) + { + uint32_t strx; + uint64_t value; + const char *name; + + strx = 0; + value = 0; + if (is_64) + { + struct macho_nlist_64 nlist; + + memcpy (&nlist, (const char *) sym_view.data + symtaboff, + sizeof nlist); + if (!macho_defined_symbol (nlist.n_type)) + continue; + + strx = nlist.n_strx; + value = nlist.n_value; + } + else + { + struct macho_nlist nlist; + + memcpy (&nlist, (const char *) sym_view.data + symtaboff, + sizeof nlist); + if (!macho_defined_symbol (nlist.n_type)) + continue; + + strx = nlist.n_strx; + value = nlist.n_value; + } + + if (strx >= strsize) + { + error_callback (data, "symbol string index out of range", 0); + goto fail; + } + + name = (const char *) str_view.data + strx; + if (name[0] == '_') + ++name; + macho_symbols[j].name = name; + macho_symbols[j].address = value + base_address; + ++j; + } + + sdata = ((struct macho_syminfo_data *) + backtrace_alloc (state, sizeof *sdata, error_callback, data)); + if (sdata == NULL) + goto fail; + + /* We need to keep the string table since it holds the names, but we + can release the symbol table. */ + + backtrace_release_view (state, &sym_view, error_callback, data); + sym_view_valid = 0; + str_view_valid = 0; + + /* Add a trailing sentinel symbol. */ + macho_symbols[j].name = ""; + macho_symbols[j].address = ~(uintptr_t) 0; + + backtrace_qsort (macho_symbols, ndefs + 1, sizeof (struct macho_symbol), + macho_symbol_compare); + + sdata->next = NULL; + sdata->symbols = macho_symbols; + sdata->count = ndefs; + + if (!state->threaded) + { + struct macho_syminfo_data **pp; + + for (pp = (struct macho_syminfo_data **) (void *) &state->syminfo_data; + *pp != NULL; + pp = &(*pp)->next) + ; + *pp = sdata; + } + else + { + while (1) + { + struct macho_syminfo_data **pp; + + pp = (struct macho_syminfo_data **) (void *) &state->syminfo_data; + + while (1) + { + struct macho_syminfo_data *p; + + p = backtrace_atomic_load_pointer (pp); + + if (p == NULL) + break; + + pp = &p->next; + } + + if (__sync_bool_compare_and_swap (pp, NULL, sdata)) + break; + } + } + + return 1; + + fail: + if (macho_symbols != NULL) + backtrace_free (state, macho_symbols, macho_symbol_size, + error_callback, data); + if (sym_view_valid) + backtrace_release_view (state, &sym_view, error_callback, data); + if (str_view_valid) + backtrace_release_view (state, &str_view, error_callback, data); + return 0; +} + +/* Return the symbol name and value for an ADDR. */ + +static void +macho_syminfo (struct backtrace_state *state, uintptr_t addr, + backtrace_syminfo_callback callback, + backtrace_error_callback error_callback ATTRIBUTE_UNUSED, + void *data) +{ + struct macho_syminfo_data *sdata; + struct macho_symbol *sym; + + sym = NULL; + if (!state->threaded) + { + for (sdata = (struct macho_syminfo_data *) state->syminfo_data; + sdata != NULL; + sdata = sdata->next) + { + sym = ((struct macho_symbol *) + bsearch (&addr, sdata->symbols, sdata->count, + sizeof (struct macho_symbol), macho_symbol_search)); + if (sym != NULL) + break; + } + } + else + { + struct macho_syminfo_data **pp; + + pp = (struct macho_syminfo_data **) (void *) &state->syminfo_data; + while (1) + { + sdata = backtrace_atomic_load_pointer (pp); + if (sdata == NULL) + break; + + sym = ((struct macho_symbol *) + bsearch (&addr, sdata->symbols, sdata->count, + sizeof (struct macho_symbol), macho_symbol_search)); + if (sym != NULL) + break; + + pp = &sdata->next; + } + } + + if (sym == NULL) + callback (data, addr, NULL, 0, 0); + else + callback (data, addr, sym->name, sym->address, 0); +} + +/* Look through a fat file to find the relevant executable. Returns 1 + on success, 0 on failure (in both cases descriptor is closed). */ + +static int +macho_add_fat (struct backtrace_state *state, const char *filename, + int descriptor, int swapped, off_t offset, + const unsigned char *match_uuid, uintptr_t base_address, + int skip_symtab, uint32_t nfat_arch, int is_64, + backtrace_error_callback error_callback, void *data, + fileline *fileline_fn, int *found_sym) +{ + int arch_view_valid; + unsigned int cputype; + size_t arch_size; + struct backtrace_view arch_view; + unsigned int i; + + arch_view_valid = 0; + +#if defined (__x86_64__) + cputype = MACH_O_CPU_TYPE_X86_64; +#elif defined (__i386__) + cputype = MACH_O_CPU_TYPE_X86; +#elif defined (__aarch64__) + cputype = MACH_O_CPU_TYPE_ARM64; +#elif defined (__arm__) + cputype = MACH_O_CPU_TYPE_ARM; +#elif defined (__ppc__) + cputype = MACH_O_CPU_TYPE_PPC; +#elif defined (__ppc64__) + cputype = MACH_O_CPU_TYPE_PPC64; +#else + error_callback (data, "unknown Mach-O architecture", 0); + goto fail; +#endif + + if (is_64) + arch_size = sizeof (struct macho_fat_arch_64); + else + arch_size = sizeof (struct macho_fat_arch); + + if (!backtrace_get_view (state, descriptor, offset, + nfat_arch * arch_size, + error_callback, data, &arch_view)) + goto fail; + + for (i = 0; i < nfat_arch; ++i) + { + uint32_t fcputype; + uint64_t foffset; + + if (is_64) + { + struct macho_fat_arch_64 fat_arch_64; + + memcpy (&fat_arch_64, + (const char *) arch_view.data + i * arch_size, + arch_size); + fcputype = fat_arch_64.cputype; + foffset = fat_arch_64.offset; + if (swapped) + { + fcputype = __builtin_bswap32 (fcputype); + foffset = __builtin_bswap64 (foffset); + } + } + else + { + struct macho_fat_arch fat_arch_32; + + memcpy (&fat_arch_32, + (const char *) arch_view.data + i * arch_size, + arch_size); + fcputype = fat_arch_32.cputype; + foffset = (uint64_t) fat_arch_32.offset; + if (swapped) + { + fcputype = __builtin_bswap32 (fcputype); + foffset = (uint64_t) __builtin_bswap32 ((uint32_t) foffset); + } + } + + if (fcputype == cputype) + { + /* FIXME: What about cpusubtype? */ + backtrace_release_view (state, &arch_view, error_callback, data); + return macho_add (state, filename, descriptor, foffset, match_uuid, + base_address, skip_symtab, error_callback, data, + fileline_fn, found_sym); + } + } + + error_callback (data, "could not find executable in fat file", 0); + + fail: + if (arch_view_valid) + backtrace_release_view (state, &arch_view, error_callback, data); + if (descriptor != -1) + backtrace_close (descriptor, error_callback, data); + return 0; +} + +/* Look for the dsym file for FILENAME. This is called if FILENAME + does not have debug info or a symbol table. Returns 1 on success, + 0 on failure. */ + +static int +macho_add_dsym (struct backtrace_state *state, const char *filename, + uintptr_t base_address, const unsigned char *uuid, + backtrace_error_callback error_callback, void *data, + fileline* fileline_fn) +{ + const char *p; + const char *dirname; + char *diralc; + size_t dirnamelen; + const char *basename; + size_t basenamelen; + const char *dsymsuffixdir; + size_t dsymsuffixdirlen; + size_t dsymlen; + char *dsym; + char *ps; + int d; + int does_not_exist; + int dummy_found_sym; + + diralc = NULL; + dirnamelen = 0; + dsym = NULL; + dsymlen = 0; + + p = strrchr (filename, '/'); + if (p == NULL) + { + dirname = "."; + dirnamelen = 1; + basename = filename; + basenamelen = strlen (basename); + diralc = NULL; + } + else + { + dirnamelen = p - filename; + diralc = backtrace_alloc (state, dirnamelen + 1, error_callback, data); + if (diralc == NULL) + goto fail; + memcpy (diralc, filename, dirnamelen); + diralc[dirnamelen] = '\0'; + dirname = diralc; + basename = p + 1; + basenamelen = strlen (basename); + } + + dsymsuffixdir = ".dSYM/Contents/Resources/DWARF/"; + dsymsuffixdirlen = strlen (dsymsuffixdir); + + dsymlen = (dirnamelen + + 1 + + basenamelen + + dsymsuffixdirlen + + basenamelen + + 1); + dsym = backtrace_alloc (state, dsymlen, error_callback, data); + if (dsym == NULL) + goto fail; + + ps = dsym; + memcpy (ps, dirname, dirnamelen); + ps += dirnamelen; + *ps++ = '/'; + memcpy (ps, basename, basenamelen); + ps += basenamelen; + memcpy (ps, dsymsuffixdir, dsymsuffixdirlen); + ps += dsymsuffixdirlen; + memcpy (ps, basename, basenamelen); + ps += basenamelen; + *ps = '\0'; + + if (diralc != NULL) + { + backtrace_free (state, diralc, dirnamelen + 1, error_callback, data); + diralc = NULL; + } + + d = backtrace_open (dsym, error_callback, data, &does_not_exist); + if (d < 0) + { + /* The file does not exist, so we can't read the debug info. + Just return success. */ + backtrace_free (state, dsym, dsymlen, error_callback, data); + return 1; + } + + if (!macho_add (state, dsym, d, 0, uuid, base_address, 1, + error_callback, data, fileline_fn, &dummy_found_sym)) + goto fail; + + backtrace_free (state, dsym, dsymlen, error_callback, data); + + return 1; + + fail: + if (dsym != NULL) + backtrace_free (state, dsym, dsymlen, error_callback, data); + if (diralc != NULL) + backtrace_free (state, diralc, dirnamelen, error_callback, data); + return 0; +} + +/* Add the backtrace data for a Macho-O file. Returns 1 on success, 0 + on failure (in both cases descriptor is closed). + + FILENAME: the name of the executable. + DESCRIPTOR: an open descriptor for the executable, closed here. + OFFSET: the offset within the file of this executable, for fat files. + MATCH_UUID: if not NULL, UUID that must match. + BASE_ADDRESS: the load address of the executable. + SKIP_SYMTAB: if non-zero, ignore the symbol table; used for dSYM files. + FILELINE_FN: set to the fileline function, by backtrace_dwarf_add. + FOUND_SYM: set to non-zero if we found the symbol table. +*/ + +static int +macho_add (struct backtrace_state *state, const char *filename, int descriptor, + off_t offset, const unsigned char *match_uuid, + uintptr_t base_address, int skip_symtab, + backtrace_error_callback error_callback, void *data, + fileline *fileline_fn, int *found_sym) +{ + struct backtrace_view header_view; + struct macho_header_32 header; + off_t hdroffset; + int is_64; + struct backtrace_view cmds_view; + int cmds_view_valid; + struct dwarf_sections dwarf_sections; + int have_dwarf; + unsigned char uuid[MACH_O_UUID_LEN]; + int have_uuid; + size_t cmdoffset; + unsigned int i; + + *found_sym = 0; + + cmds_view_valid = 0; + + /* The 32-bit and 64-bit file headers start out the same, so we can + just always read the 32-bit version. A fat header is shorter but + it will always be followed by data, so it's OK to read extra. */ + + if (!backtrace_get_view (state, descriptor, offset, + sizeof (struct macho_header_32), + error_callback, data, &header_view)) + goto fail; + + memcpy (&header, header_view.data, sizeof header); + + backtrace_release_view (state, &header_view, error_callback, data); + + switch (header.magic) + { + case MACH_O_MH_MAGIC_32: + is_64 = 0; + hdroffset = offset + sizeof (struct macho_header_32); + break; + case MACH_O_MH_MAGIC_64: + is_64 = 1; + hdroffset = offset + sizeof (struct macho_header_64); + break; + case MACH_O_MH_MAGIC_FAT: + case MACH_O_MH_MAGIC_FAT_64: + { + struct macho_header_fat fat_header; + + hdroffset = offset + sizeof (struct macho_header_fat); + memcpy (&fat_header, &header, sizeof fat_header); + return macho_add_fat (state, filename, descriptor, 0, hdroffset, + match_uuid, base_address, skip_symtab, + fat_header.nfat_arch, + header.magic == MACH_O_MH_MAGIC_FAT_64, + error_callback, data, fileline_fn, found_sym); + } + case MACH_O_MH_CIGAM_FAT: + case MACH_O_MH_CIGAM_FAT_64: + { + struct macho_header_fat fat_header; + uint32_t nfat_arch; + + hdroffset = offset + sizeof (struct macho_header_fat); + memcpy (&fat_header, &header, sizeof fat_header); + nfat_arch = __builtin_bswap32 (fat_header.nfat_arch); + return macho_add_fat (state, filename, descriptor, 1, hdroffset, + match_uuid, base_address, skip_symtab, + nfat_arch, + header.magic == MACH_O_MH_CIGAM_FAT_64, + error_callback, data, fileline_fn, found_sym); + } + default: + error_callback (data, "executable file is not in Mach-O format", 0); + goto fail; + } + + switch (header.filetype) + { + case MACH_O_MH_EXECUTE: + case MACH_O_MH_DYLIB: + case MACH_O_MH_DSYM: + break; + default: + error_callback (data, "executable file is not an executable", 0); + goto fail; + } + + if (!backtrace_get_view (state, descriptor, hdroffset, header.sizeofcmds, + error_callback, data, &cmds_view)) + goto fail; + cmds_view_valid = 1; + + memset (&dwarf_sections, 0, sizeof dwarf_sections); + have_dwarf = 0; + memset (&uuid, 0, sizeof uuid); + have_uuid = 0; + + cmdoffset = 0; + for (i = 0; i < header.ncmds; ++i) + { + const char *pcmd; + struct macho_load_command load_command; + + if (cmdoffset + sizeof load_command > header.sizeofcmds) + break; + + pcmd = (const char *) cmds_view.data + cmdoffset; + memcpy (&load_command, pcmd, sizeof load_command); + + switch (load_command.cmd) + { + case MACH_O_LC_SEGMENT: + { + struct macho_segment_command segcmd; + + memcpy (&segcmd, pcmd, sizeof segcmd); + if (memcmp (segcmd.segname, + "__DWARF\0\0\0\0\0\0\0\0\0", + MACH_O_NAMELEN) == 0) + { + if (!macho_add_dwarf_segment (state, descriptor, offset, + load_command.cmd, + pcmd + sizeof segcmd, + (load_command.cmdsize + - sizeof segcmd), + segcmd.nsects, error_callback, + data, &dwarf_sections)) + goto fail; + have_dwarf = 1; + } + } + break; + + case MACH_O_LC_SEGMENT_64: + { + struct macho_segment_64_command segcmd; + + memcpy (&segcmd, pcmd, sizeof segcmd); + if (memcmp (segcmd.segname, + "__DWARF\0\0\0\0\0\0\0\0\0", + MACH_O_NAMELEN) == 0) + { + if (!macho_add_dwarf_segment (state, descriptor, offset, + load_command.cmd, + pcmd + sizeof segcmd, + (load_command.cmdsize + - sizeof segcmd), + segcmd.nsects, error_callback, + data, &dwarf_sections)) + goto fail; + have_dwarf = 1; + } + } + break; + + case MACH_O_LC_SYMTAB: + if (!skip_symtab) + { + struct macho_symtab_command symcmd; + + memcpy (&symcmd, pcmd, sizeof symcmd); + if (!macho_add_symtab (state, descriptor, base_address, is_64, + offset + symcmd.symoff, symcmd.nsyms, + offset + symcmd.stroff, symcmd.strsize, + error_callback, data)) + goto fail; + + *found_sym = 1; + } + break; + + case MACH_O_LC_UUID: + { + struct macho_uuid_command uuidcmd; + + memcpy (&uuidcmd, pcmd, sizeof uuidcmd); + memcpy (&uuid[0], &uuidcmd.uuid[0], MACH_O_UUID_LEN); + have_uuid = 1; + } + break; + + default: + break; + } + + cmdoffset += load_command.cmdsize; + } + + if (!backtrace_close (descriptor, error_callback, data)) + goto fail; + descriptor = -1; + + backtrace_release_view (state, &cmds_view, error_callback, data); + cmds_view_valid = 0; + + if (match_uuid != NULL) + { + /* If we don't have a UUID, or it doesn't match, just ignore + this file. */ + if (!have_uuid + || memcmp (match_uuid, &uuid[0], MACH_O_UUID_LEN) != 0) + return 1; + } + + if (have_dwarf) + { + int is_big_endian; + + is_big_endian = 0; +#if defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) +#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ + is_big_endian = 1; +#endif +#endif + + if (!backtrace_dwarf_add (state, base_address, &dwarf_sections, + is_big_endian, NULL, error_callback, data, + fileline_fn, NULL)) + goto fail; + } + + if (!have_dwarf && have_uuid) + { + if (!macho_add_dsym (state, filename, base_address, &uuid[0], + error_callback, data, fileline_fn)) + goto fail; + } + + return 1; + + fail: + if (cmds_view_valid) + backtrace_release_view (state, &cmds_view, error_callback, data); + if (descriptor != -1) + backtrace_close (descriptor, error_callback, data); + return 0; +} + +#ifdef HAVE_MACH_O_DYLD_H + +/* Initialize the backtrace data we need from a Mach-O executable + using the dyld support functions. This closes descriptor. */ + +int +backtrace_initialize (struct backtrace_state *state, const char *filename, + int descriptor, backtrace_error_callback error_callback, + void *data, fileline *fileline_fn) +{ + uint32_t c; + uint32_t i; + int closed_descriptor; + int found_sym; + fileline macho_fileline_fn; + + closed_descriptor = 0; + found_sym = 0; + macho_fileline_fn = macho_nodebug; + + c = _dyld_image_count (); + for (i = 0; i < c; ++i) + { + uintptr_t base_address; + const char *name; + int d; + fileline mff; + int mfs; + + name = _dyld_get_image_name (i); + if (name == NULL) + continue; + + if (strcmp (name, filename) == 0 && !closed_descriptor) + { + d = descriptor; + closed_descriptor = 1; + } + else + { + int does_not_exist; + + d = backtrace_open (name, error_callback, data, &does_not_exist); + if (d < 0) + continue; + } + + base_address = _dyld_get_image_vmaddr_slide (i); + + mff = macho_nodebug; + if (!macho_add (state, name, d, 0, NULL, base_address, 0, + error_callback, data, &mff, &mfs)) + return 0; + + if (mff != macho_nodebug) + macho_fileline_fn = mff; + if (mfs) + found_sym = 1; + } + + if (!closed_descriptor) + backtrace_close (descriptor, error_callback, data); + + if (!state->threaded) + { + if (found_sym) + state->syminfo_fn = macho_syminfo; + else if (state->syminfo_fn == NULL) + state->syminfo_fn = macho_nosyms; + } + else + { + if (found_sym) + backtrace_atomic_store_pointer (&state->syminfo_fn, macho_syminfo); + else + (void) __sync_bool_compare_and_swap (&state->syminfo_fn, NULL, + macho_nosyms); + } + + if (!state->threaded) + *fileline_fn = state->fileline_fn; + else + *fileline_fn = backtrace_atomic_load_pointer (&state->fileline_fn); + + if (*fileline_fn == NULL || *fileline_fn == macho_nodebug) + *fileline_fn = macho_fileline_fn; + + return 1; +} + +#else /* !defined (HAVE_MACH_O_DYLD_H) */ + +/* Initialize the backtrace data we need from a Mach-O executable + without using the dyld support functions. This closes + descriptor. */ + +int +backtrace_initialize (struct backtrace_state *state, const char *filename, + int descriptor, backtrace_error_callback error_callback, + void *data, fileline *fileline_fn) +{ + fileline macho_fileline_fn; + int found_sym; + + macho_fileline_fn = macho_nodebug; + if (!macho_add (state, filename, descriptor, 0, NULL, 0, 0, + error_callback, data, &macho_fileline_fn, &found_sym)) + return 0; + + if (!state->threaded) + { + if (found_sym) + state->syminfo_fn = macho_syminfo; + else if (state->syminfo_fn == NULL) + state->syminfo_fn = macho_nosyms; + } + else + { + if (found_sym) + backtrace_atomic_store_pointer (&state->syminfo_fn, macho_syminfo); + else + (void) __sync_bool_compare_and_swap (&state->syminfo_fn, NULL, + macho_nosyms); + } + + if (!state->threaded) + *fileline_fn = state->fileline_fn; + else + *fileline_fn = backtrace_atomic_load_pointer (&state->fileline_fn); + + if (*fileline_fn == NULL || *fileline_fn == macho_nodebug) + *fileline_fn = macho_fileline_fn; + + return 1; +} + +#endif /* !defined (HAVE_MACH_O_DYLD_H) */ diff --git a/libbacktrace/mmap.c b/libbacktrace/mmap.c new file mode 100644 index 00000000000..d7313be73f7 --- /dev/null +++ b/libbacktrace/mmap.c @@ -0,0 +1,331 @@ +/* mmap.c -- Memory allocation with mmap. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <errno.h> +#include <string.h> +#include <stdlib.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/mman.h> + +#include "backtrace.h" +#include "internal.h" + +#ifndef HAVE_DECL_GETPAGESIZE +extern int getpagesize (void); +#endif + +/* Memory allocation on systems that provide anonymous mmap. This + permits the backtrace functions to be invoked from a signal + handler, assuming that mmap is async-signal safe. */ + +#ifndef MAP_ANONYMOUS +#define MAP_ANONYMOUS MAP_ANON +#endif + +#ifndef MAP_FAILED +#define MAP_FAILED ((void *)-1) +#endif + +/* A list of free memory blocks. */ + +struct backtrace_freelist_struct +{ + /* Next on list. */ + struct backtrace_freelist_struct *next; + /* Size of this block, including this structure. */ + size_t size; +}; + +/* Free memory allocated by backtrace_alloc. */ + +static void +backtrace_free_locked (struct backtrace_state *state, void *addr, size_t size) +{ + /* Just leak small blocks. We don't have to be perfect. Don't put + more than 16 entries on the free list, to avoid wasting time + searching when allocating a block. If we have more than 16 + entries, leak the smallest entry. */ + + if (size >= sizeof (struct backtrace_freelist_struct)) + { + size_t c; + struct backtrace_freelist_struct **ppsmall; + struct backtrace_freelist_struct **pp; + struct backtrace_freelist_struct *p; + + c = 0; + ppsmall = NULL; + for (pp = &state->freelist; *pp != NULL; pp = &(*pp)->next) + { + if (ppsmall == NULL || (*pp)->size < (*ppsmall)->size) + ppsmall = pp; + ++c; + } + if (c >= 16) + { + if (size <= (*ppsmall)->size) + return; + *ppsmall = (*ppsmall)->next; + } + + p = (struct backtrace_freelist_struct *) addr; + p->next = state->freelist; + p->size = size; + state->freelist = p; + } +} + +/* Allocate memory like malloc. If ERROR_CALLBACK is NULL, don't + report an error. */ + +void * +backtrace_alloc (struct backtrace_state *state, + size_t size, backtrace_error_callback error_callback, + void *data) +{ + void *ret; + int locked; + struct backtrace_freelist_struct **pp; + size_t pagesize; + size_t asksize; + void *page; + + ret = NULL; + + /* If we can acquire the lock, then see if there is space on the + free list. If we can't acquire the lock, drop straight into + using mmap. __sync_lock_test_and_set returns the old state of + the lock, so we have acquired it if it returns 0. */ + + if (!state->threaded) + locked = 1; + else + locked = __sync_lock_test_and_set (&state->lock_alloc, 1) == 0; + + if (locked) + { + for (pp = &state->freelist; *pp != NULL; pp = &(*pp)->next) + { + if ((*pp)->size >= size) + { + struct backtrace_freelist_struct *p; + + p = *pp; + *pp = p->next; + + /* Round for alignment; we assume that no type we care about + is more than 8 bytes. */ + size = (size + 7) & ~ (size_t) 7; + if (size < p->size) + backtrace_free_locked (state, (char *) p + size, + p->size - size); + + ret = (void *) p; + + break; + } + } + + if (state->threaded) + __sync_lock_release (&state->lock_alloc); + } + + if (ret == NULL) + { + /* Allocate a new page. */ + + pagesize = getpagesize (); + asksize = (size + pagesize - 1) & ~ (pagesize - 1); + page = mmap (NULL, asksize, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + if (page == MAP_FAILED) + { + if (error_callback) + error_callback (data, "mmap", errno); + } + else + { + size = (size + 7) & ~ (size_t) 7; + if (size < asksize) + backtrace_free (state, (char *) page + size, asksize - size, + error_callback, data); + + ret = page; + } + } + + return ret; +} + +/* Free memory allocated by backtrace_alloc. */ + +void +backtrace_free (struct backtrace_state *state, void *addr, size_t size, + backtrace_error_callback error_callback ATTRIBUTE_UNUSED, + void *data ATTRIBUTE_UNUSED) +{ + int locked; + + /* If we are freeing a large aligned block, just release it back to + the system. This case arises when growing a vector for a large + binary with lots of debug info. Calling munmap here may cause us + to call mmap again if there is also a large shared library; we + just live with that. */ + if (size >= 16 * 4096) + { + size_t pagesize; + + pagesize = getpagesize (); + if (((uintptr_t) addr & (pagesize - 1)) == 0 + && (size & (pagesize - 1)) == 0) + { + /* If munmap fails for some reason, just add the block to + the freelist. */ + if (munmap (addr, size) == 0) + return; + } + } + + /* If we can acquire the lock, add the new space to the free list. + If we can't acquire the lock, just leak the memory. + __sync_lock_test_and_set returns the old state of the lock, so we + have acquired it if it returns 0. */ + + if (!state->threaded) + locked = 1; + else + locked = __sync_lock_test_and_set (&state->lock_alloc, 1) == 0; + + if (locked) + { + backtrace_free_locked (state, addr, size); + + if (state->threaded) + __sync_lock_release (&state->lock_alloc); + } +} + +/* Grow VEC by SIZE bytes. */ + +void * +backtrace_vector_grow (struct backtrace_state *state,size_t size, + backtrace_error_callback error_callback, + void *data, struct backtrace_vector *vec) +{ + void *ret; + + if (size > vec->alc) + { + size_t pagesize; + size_t alc; + void *base; + + pagesize = getpagesize (); + alc = vec->size + size; + if (vec->size == 0) + alc = 16 * size; + else if (alc < pagesize) + { + alc *= 2; + if (alc > pagesize) + alc = pagesize; + } + else + { + alc *= 2; + alc = (alc + pagesize - 1) & ~ (pagesize - 1); + } + base = backtrace_alloc (state, alc, error_callback, data); + if (base == NULL) + return NULL; + if (vec->base != NULL) + { + memcpy (base, vec->base, vec->size); + backtrace_free (state, vec->base, vec->size + vec->alc, + error_callback, data); + } + vec->base = base; + vec->alc = alc - vec->size; + } + + ret = (char *) vec->base + vec->size; + vec->size += size; + vec->alc -= size; + return ret; +} + +/* Finish the current allocation on VEC. */ + +void * +backtrace_vector_finish ( + struct backtrace_state *state ATTRIBUTE_UNUSED, + struct backtrace_vector *vec, + backtrace_error_callback error_callback ATTRIBUTE_UNUSED, + void *data ATTRIBUTE_UNUSED) +{ + void *ret; + + ret = vec->base; + vec->base = (char *) vec->base + vec->size; + vec->size = 0; + return ret; +} + +/* Release any extra space allocated for VEC. */ + +int +backtrace_vector_release (struct backtrace_state *state, + struct backtrace_vector *vec, + backtrace_error_callback error_callback, + void *data) +{ + size_t size; + size_t alc; + size_t aligned; + + /* Make sure that the block that we free is aligned on an 8-byte + boundary. */ + size = vec->size; + alc = vec->alc; + aligned = (size + 7) & ~ (size_t) 7; + alc -= aligned - size; + + backtrace_free (state, (char *) vec->base + aligned, alc, + error_callback, data); + vec->alc = 0; + if (vec->size == 0) + vec->base = NULL; + return 1; +} diff --git a/libbacktrace/mmapio.c b/libbacktrace/mmapio.c new file mode 100644 index 00000000000..7f6fa8d2748 --- /dev/null +++ b/libbacktrace/mmapio.c @@ -0,0 +1,110 @@ +/* mmapio.c -- File views using mmap. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <errno.h> +#include <sys/types.h> +#include <sys/mman.h> +#include <unistd.h> + +#include "backtrace.h" +#include "internal.h" + +#ifndef HAVE_DECL_GETPAGESIZE +extern int getpagesize (void); +#endif + +#ifndef MAP_FAILED +#define MAP_FAILED ((void *)-1) +#endif + +/* This file implements file views and memory allocation when mmap is + available. */ + +/* Create a view of SIZE bytes from DESCRIPTOR at OFFSET. */ + +int +backtrace_get_view (struct backtrace_state *state ATTRIBUTE_UNUSED, + int descriptor, off_t offset, uint64_t size, + backtrace_error_callback error_callback, + void *data, struct backtrace_view *view) +{ + size_t pagesize; + unsigned int inpage; + off_t pageoff; + void *map; + + if ((uint64_t) (size_t) size != size) + { + error_callback (data, "file size too large", 0); + return 0; + } + + pagesize = getpagesize (); + inpage = offset % pagesize; + pageoff = offset - inpage; + + size += inpage; + size = (size + (pagesize - 1)) & ~ (pagesize - 1); + + map = mmap (NULL, size, PROT_READ, MAP_PRIVATE, descriptor, pageoff); + if (map == MAP_FAILED) + { + error_callback (data, "mmap", errno); + return 0; + } + + view->data = (char *) map + inpage; + view->base = map; + view->len = size; + + return 1; +} + +/* Release a view read by backtrace_get_view. */ + +void +backtrace_release_view (struct backtrace_state *state ATTRIBUTE_UNUSED, + struct backtrace_view *view, + backtrace_error_callback error_callback, + void *data) +{ + union { + const void *cv; + void *v; + } const_cast; + + const_cast.cv = view->base; + if (munmap (const_cast.v, view->len) < 0) + error_callback (data, "munmap", errno); +} diff --git a/libbacktrace/mtest.c b/libbacktrace/mtest.c new file mode 100644 index 00000000000..7e0189a2899 --- /dev/null +++ b/libbacktrace/mtest.c @@ -0,0 +1,410 @@ +/* mtest.c -- Minidebug test for libbacktrace library + Copyright (C) 2020-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +/* This program tests using libbacktrace with a program that uses the + minidebuginfo format in a .gnu_debugdata section. See + https://sourceware.org/gdb/current/onlinedocs/gdb/MiniDebugInfo.html + for a bit more information about minidebuginfo. What is relevant + for libbacktrace is that we have just a symbol table, with no debug + info, so we should be able to do a function backtrace, but we can't + do a file/line backtrace. */ + +#include <assert.h> +#include <stdlib.h> +#include <string.h> + +#include "backtrace.h" +#include "backtrace-supported.h" + +#include "testlib.h" + +static int test1 (void) __attribute__ ((noinline, noclone, unused)); +static int f2 (int) __attribute__ ((noinline, noclone)); +static int f3 (int, int) __attribute__ ((noinline, noclone)); + +/* Collected PC values. */ + +static uintptr_t addrs[20]; + +/* The backtrace callback function. This is like callback_one in + testlib.c, but it saves the PC also. */ + +static int +callback_mtest (void *vdata, uintptr_t pc, const char *filename, int lineno, + const char *function) +{ + struct bdata *data = (struct bdata *) vdata; + + if (data->index >= sizeof addrs / sizeof addrs[0]) + { + fprintf (stderr, "callback_mtest: callback called too many times\n"); + data->failed = 1; + return 1; + } + + addrs[data->index] = pc; + + return callback_one (vdata, pc, filename, lineno, function); +} + +/* Test the backtrace function with non-inlined functions. (We don't + test with inlined functions because they won't work with minidebug + anyhow.) */ + +static int +test1 (void) +{ + /* Returning a value here and elsewhere avoids a tailcall which + would mess up the backtrace. */ + return f2 (__LINE__) + 1; +} + +static int +f2 (int f1line) +{ + return f3 (f1line, __LINE__) + 2; +} + +static int +f3 (int f1line __attribute__ ((unused)), int f2line __attribute__ ((unused))) +{ + struct info all[20]; + struct bdata data; + int i; + size_t j; + + data.all = &all[0]; + data.index = 0; + data.max = 20; + data.failed = 0; + + i = backtrace_full (state, 0, callback_mtest, error_callback_one, &data); + + if (i != 0) + { + fprintf (stderr, "test1: unexpected return value %d\n", i); + data.failed = 1; + } + + if (data.index < 3) + { + fprintf (stderr, + "test1: not enough frames; got %zu, expected at least 3\n", + data.index); + data.failed = 1; + } + + /* When using minidebug we don't expect the function name here. */ + + for (j = 0; j < 3 && j < data.index; j++) + { + if (all[j].function == NULL) + { + struct symdata symdata; + + symdata.name = NULL; + symdata.val = 0; + symdata.size = 0; + symdata.failed = 0; + + i = backtrace_syminfo (state, addrs[j], callback_three, + error_callback_three, &symdata); + if (i == 0) + { + fprintf (stderr, + ("test1: [%zu], unexpected return value from " + "backtrace_syminfo %d\n"), + j, i); + data.failed = 1; + } + else if (symdata.name == NULL) + { + fprintf (stderr, "test1: [%zu]: syminfo did not find name\n", j); + data.failed = 1; + } + else + all[j].function = strdup (symdata.name); + } + } + + if (data.index > 0) + { + if (all[0].function == NULL) + { + fprintf (stderr, "test1: [0]: missing function name\n"); + data.failed = 1; + } + else if (strcmp (all[0].function, "f3") != 0) + { + fprintf (stderr, "test1: [0]: got %s expected %s\n", + all[0].function, "f3"); + data.failed = 1; + } + } + + if (data.index > 1) + { + if (all[1].function == NULL) + { + fprintf (stderr, "test1: [1]: missing function name\n"); + data.failed = 1; + } + else if (strcmp (all[1].function, "f2") != 0) + { + fprintf (stderr, "test1: [1]: got %s expected %s\n", + all[0].function, "f2"); + data.failed = 1; + } + } + + if (data.index > 2) + { + if (all[2].function == NULL) + { + fprintf (stderr, "test1: [2]: missing function name\n"); + data.failed = 1; + } + else if (strcmp (all[2].function, "test1") != 0) + { + fprintf (stderr, "test1: [2]: got %s expected %s\n", + all[0].function, "test1"); + data.failed = 1; + } + } + + printf ("%s: backtrace_full noinline\n", data.failed ? "FAIL" : "PASS"); + + if (data.failed) + ++failures; + + return failures; +} + +/* Test the backtrace_simple function with non-inlined functions. */ + +static int test3 (void) __attribute__ ((noinline, noclone, unused)); +static int f22 (int) __attribute__ ((noinline, noclone)); +static int f23 (int, int) __attribute__ ((noinline, noclone)); + +static int +test3 (void) +{ + return f22 (__LINE__) + 1; +} + +static int +f22 (int f1line) +{ + return f23 (f1line, __LINE__) + 2; +} + +static int +f23 (int f1line __attribute__ ((unused)), int f2line __attribute__ ((unused))) +{ + uintptr_t addrs[20]; + struct sdata data; + int i; + + data.addrs = &addrs[0]; + data.index = 0; + data.max = 20; + data.failed = 0; + + i = backtrace_simple (state, 0, callback_two, error_callback_two, &data); + + if (i != 0) + { + fprintf (stderr, "test3: unexpected return value %d\n", i); + data.failed = 1; + } + + if (!data.failed) + { + int j; + + for (j = 0; j < 3; ++j) + { + struct symdata symdata; + + symdata.name = NULL; + symdata.val = 0; + symdata.size = 0; + symdata.failed = 0; + + i = backtrace_syminfo (state, addrs[j], callback_three, + error_callback_three, &symdata); + if (i == 0) + { + fprintf (stderr, + ("test3: [%d]: unexpected return value " + "from backtrace_syminfo %d\n"), + j, i); + symdata.failed = 1; + } + + if (!symdata.failed) + { + const char *expected; + + switch (j) + { + case 0: + expected = "f23"; + break; + case 1: + expected = "f22"; + break; + case 2: + expected = "test3"; + break; + default: + assert (0); + } + + if (symdata.name == NULL) + { + fprintf (stderr, "test3: [%d]: NULL syminfo name\n", j); + symdata.failed = 1; + } + /* Use strncmp, not strcmp, because GCC might create a + clone. */ + else if (strncmp (symdata.name, expected, strlen (expected)) + != 0) + { + fprintf (stderr, + ("test3: [%d]: unexpected syminfo name " + "got %s expected %s\n"), + j, symdata.name, expected); + symdata.failed = 1; + } + } + + if (symdata.failed) + data.failed = 1; + } + } + + printf ("%s: backtrace_simple noinline\n", data.failed ? "FAIL" : "PASS"); + + if (data.failed) + ++failures; + + return failures; +} + +int test5 (void) __attribute__ ((unused)); + +int global = 1; + +int +test5 (void) +{ + struct symdata symdata; + int i; + uintptr_t addr = (uintptr_t) &global; + + if (sizeof (global) > 1) + addr += 1; + + symdata.name = NULL; + symdata.val = 0; + symdata.size = 0; + symdata.failed = 0; + + i = backtrace_syminfo (state, addr, callback_three, + error_callback_three, &symdata); + if (i == 0) + { + fprintf (stderr, + "test5: unexpected return value from backtrace_syminfo %d\n", + i); + symdata.failed = 1; + } + + if (!symdata.failed) + { + if (symdata.name == NULL) + { + fprintf (stderr, "test5: NULL syminfo name\n"); + symdata.failed = 1; + } + else if (!(strncmp (symdata.name, "global", 6) == 0 + && (symdata.name[6] == '\0'|| symdata.name[6] == '.'))) + { + fprintf (stderr, + "test5: unexpected syminfo name got %s expected %s\n", + symdata.name, "global"); + symdata.failed = 1; + } + else if (symdata.val != (uintptr_t) &global) + { + fprintf (stderr, + "test5: unexpected syminfo value got %lx expected %lx\n", + (unsigned long) symdata.val, + (unsigned long) (uintptr_t) &global); + symdata.failed = 1; + } + else if (symdata.size != sizeof (global)) + { + fprintf (stderr, + "test5: unexpected syminfo size got %lx expected %lx\n", + (unsigned long) symdata.size, + (unsigned long) sizeof (global)); + symdata.failed = 1; + } + } + + printf ("%s: backtrace_syminfo variable\n", + symdata.failed ? "FAIL" : "PASS"); + + if (symdata.failed) + ++failures; + + return failures; +} + +int +main (int argc ATTRIBUTE_UNUSED, char **argv) +{ + state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS, + error_callback_create, NULL); + +#if BACKTRACE_SUPPORTED + test1 (); + test3 (); +#if BACKTRACE_SUPPORTS_DATA + test5 (); +#endif +#endif + + exit (failures ? EXIT_FAILURE : EXIT_SUCCESS); +} diff --git a/libbacktrace/nounwind.c b/libbacktrace/nounwind.c new file mode 100644 index 00000000000..0eea7139b69 --- /dev/null +++ b/libbacktrace/nounwind.c @@ -0,0 +1,66 @@ +/* backtrace.c -- Entry point for stack backtrace library. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <sys/types.h> + +#include "backtrace.h" + +#include "internal.h" + +/* This source file is compiled if the unwind library is not + available. */ + +int +backtrace_full (struct backtrace_state *state ATTRIBUTE_UNUSED, + int skip ATTRIBUTE_UNUSED, + backtrace_full_callback callback ATTRIBUTE_UNUSED, + backtrace_error_callback error_callback, void *data) +{ + error_callback (data, + "no stack trace because unwind library not available", + 0); + return 0; +} + +int +backtrace_simple (struct backtrace_state *state ATTRIBUTE_UNUSED, + int skip ATTRIBUTE_UNUSED, + backtrace_simple_callback callback ATTRIBUTE_UNUSED, + backtrace_error_callback error_callback, void *data) +{ + error_callback (data, + "no stack trace because unwind library not available", + 0); + return 0; +} diff --git a/libbacktrace/pecoff.c b/libbacktrace/pecoff.c new file mode 100644 index 00000000000..720251900b4 --- /dev/null +++ b/libbacktrace/pecoff.c @@ -0,0 +1,935 @@ +/* pecoff.c -- Get debug data from a PE/COFFF file for backtraces. + Copyright (C) 2015-2021 Free Software Foundation, Inc. + Adapted from elf.c by Tristan Gingold, AdaCore. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> + +#include "backtrace.h" +#include "internal.h" + +/* Coff file header. */ + +typedef struct { + uint16_t machine; + uint16_t number_of_sections; + uint32_t time_date_stamp; + uint32_t pointer_to_symbol_table; + uint32_t number_of_symbols; + uint16_t size_of_optional_header; + uint16_t characteristics; +} b_coff_file_header; + +/* Coff optional header. */ + +typedef struct { + uint16_t magic; + uint8_t major_linker_version; + uint8_t minor_linker_version; + uint32_t size_of_code; + uint32_t size_of_initialized_data; + uint32_t size_of_uninitialized_data; + uint32_t address_of_entry_point; + uint32_t base_of_code; + union { + struct { + uint32_t base_of_data; + uint32_t image_base; + } pe; + struct { + uint64_t image_base; + } pep; + } u; +} b_coff_optional_header; + +/* Values of magic in optional header. */ + +#define PE_MAGIC 0x10b /* PE32 executable. */ +#define PEP_MAGIC 0x20b /* PE32+ executable (for 64bit targets). */ + +/* Coff section header. */ + +typedef struct { + char name[8]; + uint32_t virtual_size; + uint32_t virtual_address; + uint32_t size_of_raw_data; + uint32_t pointer_to_raw_data; + uint32_t pointer_to_relocations; + uint32_t pointer_to_line_numbers; + uint16_t number_of_relocations; + uint16_t number_of_line_numbers; + uint32_t characteristics; +} b_coff_section_header; + +/* Coff symbol name. */ + +typedef union { + char short_name[8]; + struct { + unsigned char zeroes[4]; + unsigned char off[4]; + } long_name; +} b_coff_name; + +/* Coff symbol (external representation which is unaligned). */ + +typedef struct { + b_coff_name name; + unsigned char value[4]; + unsigned char section_number[2]; + unsigned char type[2]; + unsigned char storage_class; + unsigned char number_of_aux_symbols; +} b_coff_external_symbol; + +/* Symbol types. */ + +#define N_TBSHFT 4 /* Shift for the derived type. */ +#define IMAGE_SYM_DTYPE_FUNCTION 2 /* Function derived type. */ + +/* Size of a coff symbol. */ + +#define SYM_SZ 18 + +/* Coff symbol, internal representation (aligned). */ + +typedef struct { + const char *name; + uint32_t value; + int16_t sec; + uint16_t type; + uint16_t sc; +} b_coff_internal_symbol; + +/* Names of sections, indexed by enum dwarf_section in internal.h. */ + +static const char * const debug_section_names[DEBUG_MAX] = +{ + ".debug_info", + ".debug_line", + ".debug_abbrev", + ".debug_ranges", + ".debug_str", + ".debug_addr", + ".debug_str_offsets", + ".debug_line_str", + ".debug_rnglists" +}; + +/* Information we gather for the sections we care about. */ + +struct debug_section_info +{ + /* Section file offset. */ + off_t offset; + /* Section size. */ + size_t size; +}; + +/* Information we keep for an coff symbol. */ + +struct coff_symbol +{ + /* The name of the symbol. */ + const char *name; + /* The address of the symbol. */ + uintptr_t address; +}; + +/* Information to pass to coff_syminfo. */ + +struct coff_syminfo_data +{ + /* Symbols for the next module. */ + struct coff_syminfo_data *next; + /* The COFF symbols, sorted by address. */ + struct coff_symbol *symbols; + /* The number of symbols. */ + size_t count; +}; + +/* A dummy callback function used when we can't find any debug info. */ + +static int +coff_nodebug (struct backtrace_state *state ATTRIBUTE_UNUSED, + uintptr_t pc ATTRIBUTE_UNUSED, + backtrace_full_callback callback ATTRIBUTE_UNUSED, + backtrace_error_callback error_callback, void *data) +{ + error_callback (data, "no debug info in PE/COFF executable", -1); + return 0; +} + +/* A dummy callback function used when we can't find a symbol + table. */ + +static void +coff_nosyms (struct backtrace_state *state ATTRIBUTE_UNUSED, + uintptr_t addr ATTRIBUTE_UNUSED, + backtrace_syminfo_callback callback ATTRIBUTE_UNUSED, + backtrace_error_callback error_callback, void *data) +{ + error_callback (data, "no symbol table in PE/COFF executable", -1); +} + +/* Read a potentially unaligned 4 byte word at P, using native endianness. */ + +static uint32_t +coff_read4 (const unsigned char *p) +{ + uint32_t res; + + memcpy (&res, p, 4); + return res; +} + +/* Read a potentially unaligned 2 byte word at P, using native endianness. + All 2 byte word in symbols are always aligned, but for coherency all + fields are declared as char arrays. */ + +static uint16_t +coff_read2 (const unsigned char *p) +{ + uint16_t res; + + memcpy (&res, p, sizeof (res)); + return res; +} + +/* Return the length (without the trailing 0) of a COFF short name. */ + +static size_t +coff_short_name_len (const char *name) +{ + int i; + + for (i = 0; i < 8; i++) + if (name[i] == 0) + return i; + return 8; +} + +/* Return true iff COFF short name CNAME is the same as NAME (a NUL-terminated + string). */ + +static int +coff_short_name_eq (const char *name, const char *cname) +{ + int i; + + for (i = 0; i < 8; i++) + { + if (name[i] != cname[i]) + return 0; + if (name[i] == 0) + return 1; + } + return name[8] == 0; +} + +/* Return true iff NAME is the same as string at offset OFF. */ + +static int +coff_long_name_eq (const char *name, unsigned int off, + struct backtrace_view *str_view) +{ + if (off >= str_view->len) + return 0; + return strcmp (name, (const char *)str_view->data + off) == 0; +} + +/* Compare struct coff_symbol for qsort. */ + +static int +coff_symbol_compare (const void *v1, const void *v2) +{ + const struct coff_symbol *e1 = (const struct coff_symbol *) v1; + const struct coff_symbol *e2 = (const struct coff_symbol *) v2; + + if (e1->address < e2->address) + return -1; + else if (e1->address > e2->address) + return 1; + else + return 0; +} + +/* Convert SYM to internal (and aligned) format ISYM, using string table + from STRTAB and STRTAB_SIZE, and number of sections SECTS_NUM. + Return -1 in case of error (invalid section number or string index). */ + +static int +coff_expand_symbol (b_coff_internal_symbol *isym, + const b_coff_external_symbol *sym, + uint16_t sects_num, + const unsigned char *strtab, size_t strtab_size) +{ + isym->type = coff_read2 (sym->type); + isym->sec = coff_read2 (sym->section_number); + isym->sc = sym->storage_class; + + if (isym->sec > 0 && (uint16_t) isym->sec > sects_num) + return -1; + if (sym->name.short_name[0] != 0) + isym->name = sym->name.short_name; + else + { + uint32_t off = coff_read4 (sym->name.long_name.off); + + if (off >= strtab_size) + return -1; + isym->name = (const char *) strtab + off; + } + return 0; +} + +/* Return true iff SYM is a defined symbol for a function. Data symbols + aren't considered because they aren't easily identified (same type as + section names, presence of symbols defined by the linker script). */ + +static int +coff_is_function_symbol (const b_coff_internal_symbol *isym) +{ + return (isym->type >> N_TBSHFT) == IMAGE_SYM_DTYPE_FUNCTION + && isym->sec > 0; +} + +/* Initialize the symbol table info for coff_syminfo. */ + +static int +coff_initialize_syminfo (struct backtrace_state *state, + uintptr_t base_address, int is_64, + const b_coff_section_header *sects, size_t sects_num, + const b_coff_external_symbol *syms, size_t syms_size, + const unsigned char *strtab, size_t strtab_size, + backtrace_error_callback error_callback, + void *data, struct coff_syminfo_data *sdata) +{ + size_t syms_count; + char *coff_symstr; + size_t coff_symstr_len; + size_t coff_symbol_count; + size_t coff_symbol_size; + struct coff_symbol *coff_symbols; + struct coff_symbol *coff_sym; + char *coff_str; + size_t i; + + syms_count = syms_size / SYM_SZ; + + /* We only care about function symbols. Count them. Also count size of + strings for in-symbol names. */ + coff_symbol_count = 0; + coff_symstr_len = 0; + for (i = 0; i < syms_count; ++i) + { + const b_coff_external_symbol *asym = &syms[i]; + b_coff_internal_symbol isym; + + if (coff_expand_symbol (&isym, asym, sects_num, strtab, strtab_size) < 0) + { + error_callback (data, "invalid section or offset in coff symbol", 0); + return 0; + } + if (coff_is_function_symbol (&isym)) + { + ++coff_symbol_count; + if (asym->name.short_name[0] != 0) + coff_symstr_len += coff_short_name_len (asym->name.short_name) + 1; + } + + i += asym->number_of_aux_symbols; + } + + coff_symbol_size = (coff_symbol_count + 1) * sizeof (struct coff_symbol); + coff_symbols = ((struct coff_symbol *) + backtrace_alloc (state, coff_symbol_size, error_callback, + data)); + if (coff_symbols == NULL) + return 0; + + /* Allocate memory for symbols strings. */ + if (coff_symstr_len > 0) + { + coff_symstr = ((char *) + backtrace_alloc (state, coff_symstr_len, error_callback, + data)); + if (coff_symstr == NULL) + { + backtrace_free (state, coff_symbols, coff_symbol_size, + error_callback, data); + return 0; + } + } + else + coff_symstr = NULL; + + /* Copy symbols. */ + coff_sym = coff_symbols; + coff_str = coff_symstr; + for (i = 0; i < syms_count; ++i) + { + const b_coff_external_symbol *asym = &syms[i]; + b_coff_internal_symbol isym; + + if (coff_expand_symbol (&isym, asym, sects_num, strtab, strtab_size)) + { + /* Should not fail, as it was already tested in the previous + loop. */ + abort (); + } + if (coff_is_function_symbol (&isym)) + { + const char *name; + int16_t secnum; + + if (asym->name.short_name[0] != 0) + { + size_t len = coff_short_name_len (isym.name); + name = coff_str; + memcpy (coff_str, isym.name, len); + coff_str[len] = 0; + coff_str += len + 1; + } + else + name = isym.name; + + if (!is_64) + { + /* Strip leading '_'. */ + if (name[0] == '_') + name++; + } + + /* Symbol value is section relative, so we need to read the address + of its section. */ + secnum = coff_read2 (asym->section_number); + + coff_sym->name = name; + coff_sym->address = (coff_read4 (asym->value) + + sects[secnum - 1].virtual_address + + base_address); + coff_sym++; + } + + i += asym->number_of_aux_symbols; + } + + /* End of symbols marker. */ + coff_sym->name = NULL; + coff_sym->address = -1; + + backtrace_qsort (coff_symbols, coff_symbol_count, + sizeof (struct coff_symbol), coff_symbol_compare); + + sdata->next = NULL; + sdata->symbols = coff_symbols; + sdata->count = coff_symbol_count; + + return 1; +} + +/* Add EDATA to the list in STATE. */ + +static void +coff_add_syminfo_data (struct backtrace_state *state, + struct coff_syminfo_data *sdata) +{ + if (!state->threaded) + { + struct coff_syminfo_data **pp; + + for (pp = (struct coff_syminfo_data **) (void *) &state->syminfo_data; + *pp != NULL; + pp = &(*pp)->next) + ; + *pp = sdata; + } + else + { + while (1) + { + struct coff_syminfo_data **pp; + + pp = (struct coff_syminfo_data **) (void *) &state->syminfo_data; + + while (1) + { + struct coff_syminfo_data *p; + + p = backtrace_atomic_load_pointer (pp); + + if (p == NULL) + break; + + pp = &p->next; + } + + if (__sync_bool_compare_and_swap (pp, NULL, sdata)) + break; + } + } +} + +/* Compare an ADDR against an elf_symbol for bsearch. We allocate one + extra entry in the array so that this can look safely at the next + entry. */ + +static int +coff_symbol_search (const void *vkey, const void *ventry) +{ + const uintptr_t *key = (const uintptr_t *) vkey; + const struct coff_symbol *entry = (const struct coff_symbol *) ventry; + uintptr_t addr; + + addr = *key; + if (addr < entry->address) + return -1; + else if (addr >= entry[1].address) + return 1; + else + return 0; +} + +/* Return the symbol name and value for an ADDR. */ + +static void +coff_syminfo (struct backtrace_state *state, uintptr_t addr, + backtrace_syminfo_callback callback, + backtrace_error_callback error_callback ATTRIBUTE_UNUSED, + void *data) +{ + struct coff_syminfo_data *sdata; + struct coff_symbol *sym = NULL; + + if (!state->threaded) + { + for (sdata = (struct coff_syminfo_data *) state->syminfo_data; + sdata != NULL; + sdata = sdata->next) + { + sym = ((struct coff_symbol *) + bsearch (&addr, sdata->symbols, sdata->count, + sizeof (struct coff_symbol), coff_symbol_search)); + if (sym != NULL) + break; + } + } + else + { + struct coff_syminfo_data **pp; + + pp = (struct coff_syminfo_data **) (void *) &state->syminfo_data; + while (1) + { + sdata = backtrace_atomic_load_pointer (pp); + if (sdata == NULL) + break; + + sym = ((struct coff_symbol *) + bsearch (&addr, sdata->symbols, sdata->count, + sizeof (struct coff_symbol), coff_symbol_search)); + if (sym != NULL) + break; + + pp = &sdata->next; + } + } + + if (sym == NULL) + callback (data, addr, NULL, 0, 0); + else + callback (data, addr, sym->name, sym->address, 0); +} + +/* Add the backtrace data for one PE/COFF file. Returns 1 on success, + 0 on failure (in both cases descriptor is closed). */ + +static int +coff_add (struct backtrace_state *state, int descriptor, + backtrace_error_callback error_callback, void *data, + fileline *fileline_fn, int *found_sym, int *found_dwarf) +{ + struct backtrace_view fhdr_view; + off_t fhdr_off; + int magic_ok; + b_coff_file_header fhdr; + off_t opt_sects_off; + size_t opt_sects_size; + unsigned int sects_num; + struct backtrace_view sects_view; + int sects_view_valid; + const b_coff_optional_header *opt_hdr; + const b_coff_section_header *sects; + struct backtrace_view str_view; + int str_view_valid; + size_t str_size; + off_t str_off; + struct backtrace_view syms_view; + off_t syms_off; + size_t syms_size; + int syms_view_valid; + unsigned int syms_num; + unsigned int i; + struct debug_section_info sections[DEBUG_MAX]; + off_t min_offset; + off_t max_offset; + struct backtrace_view debug_view; + int debug_view_valid; + int is_64; + uintptr_t image_base; + struct dwarf_sections dwarf_sections; + + *found_sym = 0; + *found_dwarf = 0; + + sects_view_valid = 0; + syms_view_valid = 0; + str_view_valid = 0; + debug_view_valid = 0; + + /* Map the MS-DOS stub (if any) and extract file header offset. */ + if (!backtrace_get_view (state, descriptor, 0, 0x40, error_callback, + data, &fhdr_view)) + goto fail; + + { + const unsigned char *vptr = fhdr_view.data; + + if (vptr[0] == 'M' && vptr[1] == 'Z') + fhdr_off = coff_read4 (vptr + 0x3c); + else + fhdr_off = 0; + } + + backtrace_release_view (state, &fhdr_view, error_callback, data); + + /* Map the coff file header. */ + if (!backtrace_get_view (state, descriptor, fhdr_off, + sizeof (b_coff_file_header) + 4, + error_callback, data, &fhdr_view)) + goto fail; + + if (fhdr_off != 0) + { + const char *magic = (const char *) fhdr_view.data; + magic_ok = memcmp (magic, "PE\0", 4) == 0; + fhdr_off += 4; + + memcpy (&fhdr, fhdr_view.data + 4, sizeof fhdr); + } + else + { + memcpy (&fhdr, fhdr_view.data, sizeof fhdr); + /* TODO: test fhdr.machine for coff but non-PE platforms. */ + magic_ok = 0; + } + backtrace_release_view (state, &fhdr_view, error_callback, data); + + if (!magic_ok) + { + error_callback (data, "executable file is not COFF", 0); + goto fail; + } + + sects_num = fhdr.number_of_sections; + syms_num = fhdr.number_of_symbols; + + opt_sects_off = fhdr_off + sizeof (fhdr); + opt_sects_size = (fhdr.size_of_optional_header + + sects_num * sizeof (b_coff_section_header)); + + /* To translate PC to file/line when using DWARF, we need to find + the .debug_info and .debug_line sections. */ + + /* Read the optional header and the section headers. */ + + if (!backtrace_get_view (state, descriptor, opt_sects_off, opt_sects_size, + error_callback, data, §s_view)) + goto fail; + sects_view_valid = 1; + opt_hdr = (const b_coff_optional_header *) sects_view.data; + sects = (const b_coff_section_header *) + (sects_view.data + fhdr.size_of_optional_header); + + is_64 = 0; + if (fhdr.size_of_optional_header > sizeof (*opt_hdr)) + { + if (opt_hdr->magic == PE_MAGIC) + image_base = opt_hdr->u.pe.image_base; + else if (opt_hdr->magic == PEP_MAGIC) + { + image_base = opt_hdr->u.pep.image_base; + is_64 = 1; + } + else + { + error_callback (data, "bad magic in PE optional header", 0); + goto fail; + } + } + else + image_base = 0; + + /* Read the symbol table and the string table. */ + + if (fhdr.pointer_to_symbol_table == 0) + { + /* No symbol table, no string table. */ + str_off = 0; + str_size = 0; + syms_num = 0; + syms_size = 0; + } + else + { + /* Symbol table is followed by the string table. The string table + starts with its length (on 4 bytes). + Map the symbol table and the length of the string table. */ + syms_off = fhdr.pointer_to_symbol_table; + syms_size = syms_num * SYM_SZ; + + if (!backtrace_get_view (state, descriptor, syms_off, syms_size + 4, + error_callback, data, &syms_view)) + goto fail; + syms_view_valid = 1; + + str_size = coff_read4 (syms_view.data + syms_size); + + str_off = syms_off + syms_size; + + if (str_size > 4) + { + /* Map string table (including the length word). */ + + if (!backtrace_get_view (state, descriptor, str_off, str_size, + error_callback, data, &str_view)) + goto fail; + str_view_valid = 1; + } + } + + memset (sections, 0, sizeof sections); + + /* Look for the symbol table. */ + for (i = 0; i < sects_num; ++i) + { + const b_coff_section_header *s = sects + i; + unsigned int str_off; + int j; + + if (s->name[0] == '/') + { + /* Extended section name. */ + str_off = atoi (s->name + 1); + } + else + str_off = 0; + + for (j = 0; j < (int) DEBUG_MAX; ++j) + { + const char *dbg_name = debug_section_names[j]; + int match; + + if (str_off != 0) + match = coff_long_name_eq (dbg_name, str_off, &str_view); + else + match = coff_short_name_eq (dbg_name, s->name); + if (match) + { + sections[j].offset = s->pointer_to_raw_data; + sections[j].size = s->virtual_size <= s->size_of_raw_data ? + s->virtual_size : s->size_of_raw_data; + break; + } + } + } + + if (syms_num != 0) + { + struct coff_syminfo_data *sdata; + + sdata = ((struct coff_syminfo_data *) + backtrace_alloc (state, sizeof *sdata, error_callback, data)); + if (sdata == NULL) + goto fail; + + if (!coff_initialize_syminfo (state, image_base, is_64, + sects, sects_num, + syms_view.data, syms_size, + str_view.data, str_size, + error_callback, data, sdata)) + { + backtrace_free (state, sdata, sizeof *sdata, error_callback, data); + goto fail; + } + + *found_sym = 1; + + coff_add_syminfo_data (state, sdata); + } + + backtrace_release_view (state, §s_view, error_callback, data); + sects_view_valid = 0; + if (syms_view_valid) + { + backtrace_release_view (state, &syms_view, error_callback, data); + syms_view_valid = 0; + } + + /* Read all the debug sections in a single view, since they are + probably adjacent in the file. We never release this view. */ + + min_offset = 0; + max_offset = 0; + for (i = 0; i < (int) DEBUG_MAX; ++i) + { + off_t end; + + if (sections[i].size == 0) + continue; + if (min_offset == 0 || sections[i].offset < min_offset) + min_offset = sections[i].offset; + end = sections[i].offset + sections[i].size; + if (end > max_offset) + max_offset = end; + } + if (min_offset == 0 || max_offset == 0) + { + if (!backtrace_close (descriptor, error_callback, data)) + goto fail; + *fileline_fn = coff_nodebug; + return 1; + } + + if (!backtrace_get_view (state, descriptor, min_offset, + max_offset - min_offset, + error_callback, data, &debug_view)) + goto fail; + debug_view_valid = 1; + + /* We've read all we need from the executable. */ + if (!backtrace_close (descriptor, error_callback, data)) + goto fail; + descriptor = -1; + + for (i = 0; i < (int) DEBUG_MAX; ++i) + { + size_t size = sections[i].size; + dwarf_sections.size[i] = size; + if (size == 0) + dwarf_sections.data[i] = NULL; + else + dwarf_sections.data[i] = ((const unsigned char *) debug_view.data + + (sections[i].offset - min_offset)); + } + + if (!backtrace_dwarf_add (state, /* base_address */ 0, &dwarf_sections, + 0, /* FIXME: is_bigendian */ + NULL, /* altlink */ + error_callback, data, fileline_fn, + NULL /* returned fileline_entry */)) + goto fail; + + *found_dwarf = 1; + + return 1; + + fail: + if (sects_view_valid) + backtrace_release_view (state, §s_view, error_callback, data); + if (str_view_valid) + backtrace_release_view (state, &str_view, error_callback, data); + if (syms_view_valid) + backtrace_release_view (state, &syms_view, error_callback, data); + if (debug_view_valid) + backtrace_release_view (state, &debug_view, error_callback, data); + if (descriptor != -1) + backtrace_close (descriptor, error_callback, data); + return 0; +} + +/* Initialize the backtrace data we need from an ELF executable. At + the ELF level, all we need to do is find the debug info + sections. */ + +int +backtrace_initialize (struct backtrace_state *state, + const char *filename ATTRIBUTE_UNUSED, int descriptor, + backtrace_error_callback error_callback, + void *data, fileline *fileline_fn) +{ + int ret; + int found_sym; + int found_dwarf; + fileline coff_fileline_fn; + + ret = coff_add (state, descriptor, error_callback, data, + &coff_fileline_fn, &found_sym, &found_dwarf); + if (!ret) + return 0; + + if (!state->threaded) + { + if (found_sym) + state->syminfo_fn = coff_syminfo; + else if (state->syminfo_fn == NULL) + state->syminfo_fn = coff_nosyms; + } + else + { + if (found_sym) + backtrace_atomic_store_pointer (&state->syminfo_fn, coff_syminfo); + else + (void) __sync_bool_compare_and_swap (&state->syminfo_fn, NULL, + coff_nosyms); + } + + if (!state->threaded) + { + if (state->fileline_fn == NULL || state->fileline_fn == coff_nodebug) + *fileline_fn = coff_fileline_fn; + } + else + { + fileline current_fn; + + current_fn = backtrace_atomic_load_pointer (&state->fileline_fn); + if (current_fn == NULL || current_fn == coff_nodebug) + *fileline_fn = coff_fileline_fn; + } + + return 1; +} diff --git a/libbacktrace/posix.c b/libbacktrace/posix.c new file mode 100644 index 00000000000..924631d2e61 --- /dev/null +++ b/libbacktrace/posix.c @@ -0,0 +1,104 @@ +/* posix.c -- POSIX file I/O routines for the backtrace library. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <errno.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <unistd.h> + +#include "backtrace.h" +#include "internal.h" + +#ifndef O_BINARY +#define O_BINARY 0 +#endif + +#ifndef O_CLOEXEC +#define O_CLOEXEC 0 +#endif + +#ifndef FD_CLOEXEC +#define FD_CLOEXEC 1 +#endif + +/* Open a file for reading. */ + +int +backtrace_open (const char *filename, backtrace_error_callback error_callback, + void *data, int *does_not_exist) +{ + int descriptor; + + if (does_not_exist != NULL) + *does_not_exist = 0; + + descriptor = open (filename, (int) (O_RDONLY | O_BINARY | O_CLOEXEC)); + if (descriptor < 0) + { + /* If DOES_NOT_EXIST is not NULL, then don't call ERROR_CALLBACK + if the file does not exist. We treat lacking permission to + open the file as the file not existing; this case arises when + running the libgo syscall package tests as root. */ + if (does_not_exist != NULL && (errno == ENOENT || errno == EACCES)) + *does_not_exist = 1; + else + error_callback (data, filename, errno); + return -1; + } + +#ifdef HAVE_FCNTL + /* Set FD_CLOEXEC just in case the kernel does not support + O_CLOEXEC. It doesn't matter if this fails for some reason. + FIXME: At some point it should be safe to only do this if + O_CLOEXEC == 0. */ + fcntl (descriptor, F_SETFD, FD_CLOEXEC); +#endif + + return descriptor; +} + +/* Close DESCRIPTOR. */ + +int +backtrace_close (int descriptor, backtrace_error_callback error_callback, + void *data) +{ + if (close (descriptor) < 0) + { + error_callback (data, "close", errno); + return 0; + } + return 1; +} diff --git a/libbacktrace/print.c b/libbacktrace/print.c new file mode 100644 index 00000000000..93d0d3abb49 --- /dev/null +++ b/libbacktrace/print.c @@ -0,0 +1,92 @@ +/* print.c -- Print the current backtrace. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <stdio.h> +#include <string.h> +#include <sys/types.h> + +#include "backtrace.h" +#include "internal.h" + +/* Passed to callbacks. */ + +struct print_data +{ + struct backtrace_state *state; + FILE *f; +}; + +/* Print one level of a backtrace. */ + +static int +print_callback (void *data, uintptr_t pc, const char *filename, int lineno, + const char *function) +{ + struct print_data *pdata = (struct print_data *) data; + + fprintf (pdata->f, "0x%lx %s\n\t%s:%d\n", + (unsigned long) pc, + function == NULL ? "???" : function, + filename == NULL ? "???" : filename, + lineno); + return 0; +} + +/* Print errors to stderr. */ + +static void +error_callback (void *data, const char *msg, int errnum) +{ + struct print_data *pdata = (struct print_data *) data; + + if (pdata->state->filename != NULL) + fprintf (stderr, "%s: ", pdata->state->filename); + fprintf (stderr, "libbacktrace: %s", msg); + if (errnum > 0) + fprintf (stderr, ": %s", strerror (errnum)); + fputc ('\n', stderr); +} + +/* Print a backtrace. */ + +void __attribute__((noinline)) +backtrace_print (struct backtrace_state *state, int skip, FILE *f) +{ + struct print_data data; + + data.state = state; + data.f = f; + backtrace_full (state, skip + 1, print_callback, error_callback, + (void *) &data); +} diff --git a/libbacktrace/read.c b/libbacktrace/read.c new file mode 100644 index 00000000000..1811c8d2e08 --- /dev/null +++ b/libbacktrace/read.c @@ -0,0 +1,110 @@ +/* read.c -- File views without mmap. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <errno.h> +#include <stdlib.h> +#include <sys/types.h> +#include <unistd.h> + +#include "backtrace.h" +#include "internal.h" + +/* This file implements file views when mmap is not available. */ + +/* Create a view of SIZE bytes from DESCRIPTOR at OFFSET. */ + +int +backtrace_get_view (struct backtrace_state *state, int descriptor, + off_t offset, uint64_t size, + backtrace_error_callback error_callback, + void *data, struct backtrace_view *view) +{ + uint64_t got; + ssize_t r; + + if ((uint64_t) (size_t) size != size) + { + error_callback (data, "file size too large", 0); + return 0; + } + + if (lseek (descriptor, offset, SEEK_SET) < 0) + { + error_callback (data, "lseek", errno); + return 0; + } + + view->base = backtrace_alloc (state, size, error_callback, data); + if (view->base == NULL) + return 0; + view->data = view->base; + view->len = size; + + got = 0; + while (got < size) + { + r = read (descriptor, view->base, size - got); + if (r < 0) + { + error_callback (data, "read", errno); + free (view->base); + return 0; + } + if (r == 0) + break; + got += (uint64_t) r; + } + + if (got < size) + { + error_callback (data, "file too short", 0); + free (view->base); + return 0; + } + + return 1; +} + +/* Release a view read by backtrace_get_view. */ + +void +backtrace_release_view (struct backtrace_state *state, + struct backtrace_view *view, + backtrace_error_callback error_callback, + void *data) +{ + backtrace_free (state, view->base, view->len, error_callback, data); + view->data = NULL; + view->base = NULL; +} diff --git a/libbacktrace/simple.c b/libbacktrace/simple.c new file mode 100644 index 00000000000..785e726e6be --- /dev/null +++ b/libbacktrace/simple.c @@ -0,0 +1,108 @@ +/* simple.c -- The backtrace_simple function. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include "unwind.h" +#include "backtrace.h" + +/* The simple_backtrace routine. */ + +/* Data passed through _Unwind_Backtrace. */ + +struct backtrace_simple_data +{ + /* Number of frames to skip. */ + int skip; + /* Library state. */ + struct backtrace_state *state; + /* Callback routine. */ + backtrace_simple_callback callback; + /* Error callback routine. */ + backtrace_error_callback error_callback; + /* Data to pass to callback routine. */ + void *data; + /* Value to return from backtrace. */ + int ret; +}; + +/* Unwind library callback routine. This is passed to + _Unwind_Backtrace. */ + +static _Unwind_Reason_Code +simple_unwind (struct _Unwind_Context *context, void *vdata) +{ + struct backtrace_simple_data *bdata = (struct backtrace_simple_data *) vdata; + uintptr_t pc; + int ip_before_insn = 0; + +#ifdef HAVE_GETIPINFO + pc = _Unwind_GetIPInfo (context, &ip_before_insn); +#else + pc = _Unwind_GetIP (context); +#endif + + if (bdata->skip > 0) + { + --bdata->skip; + return _URC_NO_REASON; + } + + if (!ip_before_insn) + --pc; + + bdata->ret = bdata->callback (bdata->data, pc); + + if (bdata->ret != 0) + return _URC_END_OF_STACK; + + return _URC_NO_REASON; +} + +/* Get a simple stack backtrace. */ + +int __attribute__((noinline)) +backtrace_simple (struct backtrace_state *state, int skip, + backtrace_simple_callback callback, + backtrace_error_callback error_callback, void *data) +{ + struct backtrace_simple_data bdata; + + bdata.skip = skip + 1; + bdata.state = state; + bdata.callback = callback; + bdata.error_callback = error_callback; + bdata.data = data; + bdata.ret = 0; + _Unwind_Backtrace (simple_unwind, &bdata); + return bdata.ret; +} diff --git a/libbacktrace/sort.c b/libbacktrace/sort.c new file mode 100644 index 00000000000..a60a980e65e --- /dev/null +++ b/libbacktrace/sort.c @@ -0,0 +1,108 @@ +/* sort.c -- Sort without allocating memory + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <stddef.h> +#include <sys/types.h> + +#include "backtrace.h" +#include "internal.h" + +/* The GNU glibc version of qsort allocates memory, which we must not + do if we are invoked by a signal handler. So provide our own + sort. */ + +static void +swap (char *a, char *b, size_t size) +{ + size_t i; + + for (i = 0; i < size; i++, a++, b++) + { + char t; + + t = *a; + *a = *b; + *b = t; + } +} + +void +backtrace_qsort (void *basearg, size_t count, size_t size, + int (*compar) (const void *, const void *)) +{ + char *base = (char *) basearg; + size_t i; + size_t mid; + + tail_recurse: + if (count < 2) + return; + + /* The symbol table and DWARF tables, which is all we use this + routine for, tend to be roughly sorted. Pick the middle element + in the array as our pivot point, so that we are more likely to + cut the array in half for each recursion step. */ + swap (base, base + (count / 2) * size, size); + + mid = 0; + for (i = 1; i < count; i++) + { + if ((*compar) (base, base + i * size) > 0) + { + ++mid; + if (i != mid) + swap (base + mid * size, base + i * size, size); + } + } + + if (mid > 0) + swap (base, base + mid * size, size); + + /* Recurse with the smaller array, loop with the larger one. That + ensures that our maximum stack depth is log count. */ + if (2 * mid < count) + { + backtrace_qsort (base, mid, size, compar); + base += (mid + 1) * size; + count -= mid + 1; + goto tail_recurse; + } + else + { + backtrace_qsort (base + (mid + 1) * size, count - (mid + 1), + size, compar); + count = mid; + goto tail_recurse; + } +} diff --git a/libbacktrace/state.c b/libbacktrace/state.c new file mode 100644 index 00000000000..0f368a23907 --- /dev/null +++ b/libbacktrace/state.c @@ -0,0 +1,72 @@ +/* state.c -- Create the backtrace state. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <string.h> +#include <sys/types.h> + +#include "backtrace.h" +#include "backtrace-supported.h" +#include "internal.h" + +/* Create the backtrace state. This will then be passed to all the + other routines. */ + +struct backtrace_state * +backtrace_create_state (const char *filename, int threaded, + backtrace_error_callback error_callback, + void *data) +{ + struct backtrace_state init_state; + struct backtrace_state *state; + +#ifndef HAVE_SYNC_FUNCTIONS + if (threaded) + { + error_callback (data, "backtrace library does not support threads", 0); + return NULL; + } +#endif + + memset (&init_state, 0, sizeof init_state); + init_state.filename = filename; + init_state.threaded = threaded; + + state = ((struct backtrace_state *) + backtrace_alloc (&init_state, sizeof *state, error_callback, data)); + if (state == NULL) + return NULL; + *state = init_state; + + return state; +} diff --git a/libbacktrace/stest.c b/libbacktrace/stest.c new file mode 100644 index 00000000000..19a204de195 --- /dev/null +++ b/libbacktrace/stest.c @@ -0,0 +1,137 @@ +/* stest.c -- Test for libbacktrace internal sort function + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> + +#include "backtrace.h" +#include "internal.h" + +/* Test the local qsort implementation. */ + +#define MAX 10 + +struct test +{ + size_t count; + int input[MAX]; + int output[MAX]; +}; + +static struct test tests[] = + { + { + 10, + { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }, + { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 } + }, + { + 9, + { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, + { 1, 2, 3, 4, 5, 6, 7, 8, 9 } + }, + { + 10, + { 10, 9, 8, 7, 6, 5, 4, 3, 2, 1 }, + { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }, + }, + { + 9, + { 9, 8, 7, 6, 5, 4, 3, 2, 1 }, + { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, + }, + { + 10, + { 2, 4, 6, 8, 10, 1, 3, 5, 7, 9 }, + { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }, + }, + { + 5, + { 4, 5, 3, 1, 2 }, + { 1, 2, 3, 4, 5 }, + }, + { + 5, + { 1, 1, 1, 1, 1 }, + { 1, 1, 1, 1, 1 }, + }, + { + 5, + { 1, 1, 2, 1, 1 }, + { 1, 1, 1, 1, 2 }, + }, + { + 5, + { 2, 1, 1, 1, 1 }, + { 1, 1, 1, 1, 2 }, + }, + }; + +static int +compare (const void *a, const void *b) +{ + const int *ai = (const int *) a; + const int *bi = (const int *) b; + + return *ai - *bi; +} + +int +main (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED) +{ + int failures; + size_t i; + int a[MAX]; + + failures = 0; + for (i = 0; i < sizeof tests / sizeof tests[0]; i++) + { + memcpy (a, tests[i].input, tests[i].count * sizeof (int)); + backtrace_qsort (a, tests[i].count, sizeof (int), compare); + if (memcmp (a, tests[i].output, tests[i].count * sizeof (int)) != 0) + { + size_t j; + + fprintf (stderr, "test %d failed:", (int) i); + for (j = 0; j < tests[i].count; j++) + fprintf (stderr, " %d", a[j]); + fprintf (stderr, "\n"); + ++failures; + } + } + + exit (failures > 0 ? EXIT_FAILURE : EXIT_SUCCESS); +} diff --git a/libbacktrace/test_format.c b/libbacktrace/test_format.c new file mode 100644 index 00000000000..9deb6f5b2a7 --- /dev/null +++ b/libbacktrace/test_format.c @@ -0,0 +1,55 @@ +/* test_format.c -- Test for libbacktrace library + Copyright (C) 2018-2021 Free Software Foundation, Inc. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +/* This program tests the externally visible interfaces of the + libbacktrace library. */ + +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "filenames.h" + +#include "backtrace.h" +#include "backtrace-supported.h" + +#include "testlib.h" + +int +main (int argc ATTRIBUTE_UNUSED, char **argv) +{ + state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS, + error_callback_create, NULL); + + exit (failures ? EXIT_FAILURE : EXIT_SUCCESS); +} diff --git a/libbacktrace/testlib.c b/libbacktrace/testlib.c new file mode 100644 index 00000000000..3d24c19e702 --- /dev/null +++ b/libbacktrace/testlib.c @@ -0,0 +1,234 @@ +/* testlib.c -- test functions for libbacktrace library + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "filenames.h" + +#include "backtrace.h" + +#include "testlib.h" + +/* The backtrace state. */ + +void *state; + +/* The number of failures. */ + +int failures; + +/* Return the base name in a path. */ + +const char * +base (const char *p) +{ + const char *last; + const char *s; + + last = NULL; + for (s = p; *s != '\0'; ++s) + { + if (IS_DIR_SEPARATOR (*s)) + last = s + 1; + } + return last != NULL ? last : p; +} + +/* Check an entry in a struct info array. */ + +void +check (const char *name, int index, const struct info *all, int want_lineno, + const char *want_function, const char *want_file, int *failed) +{ + if (*failed) + return; + if (all[index].filename == NULL || all[index].function == NULL) + { + fprintf (stderr, "%s: [%d]: missing file name or function name\n", + name, index); + *failed = 1; + return; + } + if (strcmp (base (all[index].filename), want_file) != 0) + { + fprintf (stderr, "%s: [%d]: got %s expected %s\n", name, index, + all[index].filename, want_file); + *failed = 1; + } + if (all[index].lineno != want_lineno) + { + fprintf (stderr, "%s: [%d]: got %d expected %d\n", name, index, + all[index].lineno, want_lineno); + *failed = 1; + } + if (strcmp (all[index].function, want_function) != 0) + { + fprintf (stderr, "%s: [%d]: got %s expected %s\n", name, index, + all[index].function, want_function); + *failed = 1; + } +} + +/* The backtrace callback function. */ + +int +callback_one (void *vdata, uintptr_t pc ATTRIBUTE_UNUSED, + const char *filename, int lineno, const char *function) +{ + struct bdata *data = (struct bdata *) vdata; + struct info *p; + + if (data->index >= data->max) + { + fprintf (stderr, "callback_one: callback called too many times\n"); + data->failed = 1; + return 1; + } + + p = &data->all[data->index]; + if (filename == NULL) + p->filename = NULL; + else + { + p->filename = strdup (filename); + assert (p->filename != NULL); + } + p->lineno = lineno; + if (function == NULL) + p->function = NULL; + else + { + p->function = strdup (function); + assert (p->function != NULL); + } + ++data->index; + + return 0; +} + +/* An error callback passed to backtrace. */ + +void +error_callback_one (void *vdata, const char *msg, int errnum) +{ + struct bdata *data = (struct bdata *) vdata; + + fprintf (stderr, "%s", msg); + if (errnum > 0) + fprintf (stderr, ": %s", strerror (errnum)); + fprintf (stderr, "\n"); + data->failed = 1; +} + +/* The backtrace_simple callback function. */ + +int +callback_two (void *vdata, uintptr_t pc) +{ + struct sdata *data = (struct sdata *) vdata; + + if (data->index >= data->max) + { + fprintf (stderr, "callback_two: callback called too many times\n"); + data->failed = 1; + return 1; + } + + data->addrs[data->index] = pc; + ++data->index; + + return 0; +} + +/* An error callback passed to backtrace_simple. */ + +void +error_callback_two (void *vdata, const char *msg, int errnum) +{ + struct sdata *data = (struct sdata *) vdata; + + fprintf (stderr, "%s", msg); + if (errnum > 0) + fprintf (stderr, ": %s", strerror (errnum)); + fprintf (stderr, "\n"); + data->failed = 1; +} + +/* The backtrace_syminfo callback function. */ + +void +callback_three (void *vdata, uintptr_t pc ATTRIBUTE_UNUSED, + const char *symname, uintptr_t symval, + uintptr_t symsize) +{ + struct symdata *data = (struct symdata *) vdata; + + if (symname == NULL) + data->name = NULL; + else + { + data->name = strdup (symname); + assert (data->name != NULL); + } + data->val = symval; + data->size = symsize; +} + +/* The backtrace_syminfo error callback function. */ + +void +error_callback_three (void *vdata, const char *msg, int errnum) +{ + struct symdata *data = (struct symdata *) vdata; + + fprintf (stderr, "%s", msg); + if (errnum > 0) + fprintf (stderr, ": %s", strerror (errnum)); + fprintf (stderr, "\n"); + data->failed = 1; +} + +/* The backtrace_create_state error callback function. */ + +void +error_callback_create (void *data ATTRIBUTE_UNUSED, const char *msg, + int errnum) +{ + fprintf (stderr, "%s", msg); + if (errnum > 0) + fprintf (stderr, ": %s", strerror (errnum)); + fprintf (stderr, "\n"); + exit (EXIT_FAILURE); +} diff --git a/libbacktrace/testlib.h b/libbacktrace/testlib.h new file mode 100644 index 00000000000..29542a5886d --- /dev/null +++ b/libbacktrace/testlib.h @@ -0,0 +1,110 @@ +/* testlib.h -- Header for test functions for libbacktrace library + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#ifndef LIBBACKTRACE_TESTLIB_H +#define LIBBACKTRACE_TESTLIB_H + +/* Portable attribute syntax. Actually some of these tests probably + won't work if the attributes are not recognized. */ + +#ifndef GCC_VERSION +# define GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__) +#endif + +#if (GCC_VERSION < 2007) +# define __attribute__(x) +#endif + +#ifndef ATTRIBUTE_UNUSED +# define ATTRIBUTE_UNUSED __attribute__ ((__unused__)) +#endif + +/* Used to collect backtrace info. */ + +struct info +{ + char *filename; + int lineno; + char *function; +}; + +/* Passed to backtrace callback function. */ + +struct bdata +{ + struct info *all; + size_t index; + size_t max; + int failed; +}; + +/* Passed to backtrace_simple callback function. */ + +struct sdata +{ + uintptr_t *addrs; + size_t index; + size_t max; + int failed; +}; + +/* Passed to backtrace_syminfo callback function. */ + +struct symdata +{ + const char *name; + uintptr_t val, size; + int failed; +}; + +/* The backtrace state. */ + +extern void *state; + +/* The number of failures. */ + +extern int failures; + +extern const char *base (const char *p); +extern void check (const char *name, int index, const struct info *all, + int want_lineno, const char *want_function, + const char *want_file, int *failed); +extern int callback_one (void *, uintptr_t, const char *, int, const char *); +extern void error_callback_one (void *, const char *, int); +extern int callback_two (void *, uintptr_t); +extern void error_callback_two (void *, const char *, int); +extern void callback_three (void *, uintptr_t, const char *, uintptr_t, + uintptr_t); +extern void error_callback_three (void *, const char *, int); +extern void error_callback_create (void *, const char *, int); + +#endif /* !defined(LIBBACKTRACE_TESTLIB_H) */ diff --git a/libbacktrace/ttest.c b/libbacktrace/ttest.c new file mode 100644 index 00000000000..3758b33f025 --- /dev/null +++ b/libbacktrace/ttest.c @@ -0,0 +1,161 @@ +/* ttest.c -- Test for libbacktrace library + Copyright (C) 2017-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +/* Test using the libbacktrace library from multiple threads. */ + +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <pthread.h> + +#include "filenames.h" + +#include "backtrace.h" +#include "backtrace-supported.h" + +#include "testlib.h" + +static int f2 (int) __attribute__ ((noinline)); +static int f3 (int, int) __attribute__ ((noinline)); + +/* Test that a simple backtrace works. This is called via + pthread_create. It returns the number of failures, as void *. */ + +static void * +test1_thread (void *arg ATTRIBUTE_UNUSED) +{ + /* Returning a value here and elsewhere avoids a tailcall which + would mess up the backtrace. */ + return (void *) (uintptr_t) (f2 (__LINE__) - 2); +} + +static int +f2 (int f1line) +{ + return f3 (f1line, __LINE__) + 2; +} + +static int +f3 (int f1line, int f2line) +{ + struct info all[20]; + struct bdata data; + int f3line; + int i; + + data.all = &all[0]; + data.index = 0; + data.max = 20; + data.failed = 0; + + f3line = __LINE__ + 1; + i = backtrace_full (state, 0, callback_one, error_callback_one, &data); + + if (i != 0) + { + fprintf (stderr, "test1: unexpected return value %d\n", i); + data.failed = 1; + } + + if (data.index < 3) + { + fprintf (stderr, + "test1: not enough frames; got %zu, expected at least 3\n", + data.index); + data.failed = 1; + } + + check ("test1", 0, all, f3line, "f3", "ttest.c", &data.failed); + check ("test1", 1, all, f2line, "f2", "ttest.c", &data.failed); + check ("test1", 2, all, f1line, "test1_thread", "ttest.c", &data.failed); + + return data.failed; +} + +/* Run the test with 10 threads simultaneously. */ + +#define THREAD_COUNT 10 + +static void test1 (void) __attribute__ ((unused)); + +static void +test1 (void) +{ + pthread_t atid[THREAD_COUNT]; + int i; + int errnum; + int this_fail; + void *ret; + + for (i = 0; i < THREAD_COUNT; i++) + { + errnum = pthread_create (&atid[i], NULL, test1_thread, NULL); + if (errnum != 0) + { + fprintf (stderr, "pthread_create %d: %s\n", i, strerror (errnum)); + exit (EXIT_FAILURE); + } + } + + this_fail = 0; + for (i = 0; i < THREAD_COUNT; i++) + { + errnum = pthread_join (atid[i], &ret); + if (errnum != 0) + { + fprintf (stderr, "pthread_join %d: %s\n", i, strerror (errnum)); + exit (EXIT_FAILURE); + } + this_fail += (int) (uintptr_t) ret; + } + + printf ("%s: threaded backtrace_full noinline\n", this_fail > 0 ? "FAIL" : "PASS"); + + failures += this_fail; +} + +int +main (int argc ATTRIBUTE_UNUSED, char **argv) +{ + state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS, + error_callback_create, NULL); + +#if BACKTRACE_SUPPORTED +#if BACKTRACE_SUPPORTS_THREADS + test1 (); +#endif +#endif + + exit (failures ? EXIT_FAILURE : EXIT_SUCCESS); +} diff --git a/libbacktrace/unittest.c b/libbacktrace/unittest.c new file mode 100644 index 00000000000..3c85623048a --- /dev/null +++ b/libbacktrace/unittest.c @@ -0,0 +1,92 @@ +/* unittest.c -- Test for libbacktrace library + Copyright (C) 2018-2021 Free Software Foundation, Inc. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "filenames.h" + +#include "backtrace.h" +#include "backtrace-supported.h" + +#include "testlib.h" + +#include "internal.h" + +static unsigned count; + +static void +error_callback (void *vdata ATTRIBUTE_UNUSED, const char *msg ATTRIBUTE_UNUSED, + int errnum ATTRIBUTE_UNUSED) +{ + ++count; +} + +static int +test1 (void) +{ + int res; + int failed; + + struct backtrace_vector vec; + + memset (&vec, 0, sizeof vec); + + backtrace_vector_grow (state, 100, error_callback, NULL, &vec); + vec.alc += vec.size; + vec.size = 0; + + count = 0; + res = backtrace_vector_release (state, &vec, error_callback, NULL); + failed = res != 1 || count != 0 || vec.base != NULL; + + printf ("%s: unittest backtrace_vector_release size == 0\n", + failed ? "FAIL": "PASS"); + + if (failed) + ++failures; + + return failures; +} + +int +main (int argc ATTRIBUTE_UNUSED, char **argv) +{ + state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS, + error_callback_create, NULL); + + test1 (); + + exit (failures ? EXIT_FAILURE : EXIT_SUCCESS); +} diff --git a/libbacktrace/unknown.c b/libbacktrace/unknown.c new file mode 100644 index 00000000000..a62cbf11eb3 --- /dev/null +++ b/libbacktrace/unknown.c @@ -0,0 +1,65 @@ +/* unknown.c -- used when backtrace configury does not know file format. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <sys/types.h> + +#include "backtrace.h" +#include "internal.h" + +/* A trivial routine that always fails to find fileline data. */ + +static int +unknown_fileline (struct backtrace_state *state ATTRIBUTE_UNUSED, + uintptr_t pc, backtrace_full_callback callback, + backtrace_error_callback error_callback ATTRIBUTE_UNUSED, + void *data) + +{ + return callback (data, pc, NULL, 0, NULL); +} + +/* Initialize the backtrace data when we don't know how to read the + debug info. */ + +int +backtrace_initialize (struct backtrace_state *state ATTRIBUTE_UNUSED, + const char *filename ATTRIBUTE_UNUSED, + int descriptor ATTRIBUTE_UNUSED, + backtrace_error_callback error_callback ATTRIBUTE_UNUSED, + void *data ATTRIBUTE_UNUSED, fileline *fileline_fn) +{ + state->fileline_data = NULL; + *fileline_fn = unknown_fileline; + return 1; +} diff --git a/libbacktrace/xcoff.c b/libbacktrace/xcoff.c new file mode 100644 index 00000000000..2ded8f0024f --- /dev/null +++ b/libbacktrace/xcoff.c @@ -0,0 +1,1607 @@ +/* xcoff.c -- Get debug data from an XCOFF file for backtraces. + Copyright (C) 2012-2021 Free Software Foundation, Inc. + Adapted from elf.c. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <errno.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> + +#ifdef HAVE_LOADQUERY +#include <sys/ldr.h> +#endif + +#include "backtrace.h" +#include "internal.h" + +/* The configure script must tell us whether we are 32-bit or 64-bit + XCOFF. We could make this code test and support either possibility, + but there is no point. This code only works for the currently + running executable, which means that we know the XCOFF mode at + configure time. */ + +#if BACKTRACE_XCOFF_SIZE != 32 && BACKTRACE_XCOFF_SIZE != 64 +#error "Unknown BACKTRACE_XCOFF_SIZE" +#endif + +/* XCOFF file header. */ + +#if BACKTRACE_XCOFF_SIZE == 32 + +typedef struct { + uint16_t f_magic; + uint16_t f_nscns; + uint32_t f_timdat; + uint32_t f_symptr; + uint32_t f_nsyms; + uint16_t f_opthdr; + uint16_t f_flags; +} b_xcoff_filhdr; + +#define XCOFF_MAGIC 0737 + +#else /* BACKTRACE_XCOFF_SIZE != 32 */ + +typedef struct { + uint16_t f_magic; + uint16_t f_nscns; + uint32_t f_timdat; + uint64_t f_symptr; + uint16_t f_opthdr; + uint16_t f_flags; + uint32_t f_nsyms; +} b_xcoff_filhdr; + +#define XCOFF_MAGIC 0767 + +#endif /* BACKTRACE_XCOFF_SIZE != 32 */ + +#define F_SHROBJ 0x2000 /* File is a shared object. */ + +/* XCOFF section header. */ + +#if BACKTRACE_XCOFF_SIZE == 32 + +typedef struct { + char s_name[8]; + uint32_t s_paddr; + uint32_t s_vaddr; + uint32_t s_size; + uint32_t s_scnptr; + uint32_t s_relptr; + uint32_t s_lnnoptr; + uint16_t s_nreloc; + uint16_t s_nlnno; + uint32_t s_flags; +} b_xcoff_scnhdr; + +#define _OVERFLOW_MARKER 65535 + +#else /* BACKTRACE_XCOFF_SIZE != 32 */ + +typedef struct { + char name[8]; + uint64_t s_paddr; + uint64_t s_vaddr; + uint64_t s_size; + uint64_t s_scnptr; + uint64_t s_relptr; + uint64_t s_lnnoptr; + uint32_t s_nreloc; + uint32_t s_nlnno; + uint32_t s_flags; +} b_xcoff_scnhdr; + +#endif /* BACKTRACE_XCOFF_SIZE != 32 */ + +#define STYP_DWARF 0x10 /* DWARF debugging section. */ +#define STYP_TEXT 0x20 /* Executable text (code) section. */ +#define STYP_OVRFLO 0x8000 /* Line-number field overflow section. */ + +#define SSUBTYP_DWINFO 0x10000 /* DWARF info section. */ +#define SSUBTYP_DWLINE 0x20000 /* DWARF line-number section. */ +#define SSUBTYP_DWARNGE 0x50000 /* DWARF aranges section. */ +#define SSUBTYP_DWABREV 0x60000 /* DWARF abbreviation section. */ +#define SSUBTYP_DWSTR 0x70000 /* DWARF strings section. */ +#define SSUBTYP_DWRNGES 0x80000 /* DWARF ranges section. */ + +/* XCOFF symbol. */ + +#define SYMNMLEN 8 + +#if BACKTRACE_XCOFF_SIZE == 32 + +typedef struct { + union { + char _name[SYMNMLEN]; + struct { + uint32_t _zeroes; + uint32_t _offset; + } _s; + } _u; +#define n_name _u._name +#define n_zeroes _u._s._zeroes +#define n_offset_ _u._s._offset + + uint32_t n_value; + int16_t n_scnum; + uint16_t n_type; + uint8_t n_sclass; + uint8_t n_numaux; +} __attribute__ ((packed)) b_xcoff_syment; + +#else /* BACKTRACE_XCOFF_SIZE != 32 */ + +typedef struct { + uint64_t n_value; + uint32_t n_offset_; + int16_t n_scnum; + uint16_t n_type; + uint8_t n_sclass; + uint8_t n_numaux; +} __attribute__ ((packed)) b_xcoff_syment; + +#endif /* BACKTRACE_XCOFF_SIZE != 32 */ + +#define SYMESZ 18 + +#define C_EXT 2 /* External symbol. */ +#define C_FCN 101 /* Beginning or end of function. */ +#define C_FILE 103 /* Source file name. */ +#define C_HIDEXT 107 /* Unnamed external symbol. */ +#define C_BINCL 108 /* Beginning of include file. */ +#define C_EINCL 109 /* End of include file. */ +#define C_WEAKEXT 111 /* Weak external symbol. */ + +#define ISFCN(x) ((x) & 0x0020) + +/* XCOFF AUX entry. */ + +#define AUXESZ 18 +#define FILNMLEN 14 + +typedef union { +#if BACKTRACE_XCOFF_SIZE == 32 + struct { + uint16_t pad; + uint16_t x_lnnohi; + uint16_t x_lnno; + } x_block; +#else + struct { + uint32_t x_lnno; + } x_block; +#endif + union { + char x_fname[FILNMLEN]; + struct { + uint32_t x_zeroes; + uint32_t x_offset; + char pad[FILNMLEN-8]; + uint8_t x_ftype; + } _x; + } x_file; +#if BACKTRACE_XCOFF_SIZE == 32 + struct { + uint32_t x_exptr; + uint32_t x_fsize; + uint32_t x_lnnoptr; + uint32_t x_endndx; + } x_fcn; +#else + struct { + uint64_t x_lnnoptr; + uint32_t x_fsize; + uint32_t x_endndx; + } x_fcn; +#endif + struct { + uint8_t pad[AUXESZ-1]; + uint8_t x_auxtype; + } x_auxtype; +} __attribute__ ((packed)) b_xcoff_auxent; + +/* XCOFF line number entry. */ + +#if BACKTRACE_XCOFF_SIZE == 32 + +typedef struct { + union { + uint32_t l_symndx; + uint32_t l_paddr; + } l_addr; + uint16_t l_lnno; +} b_xcoff_lineno; + +#define LINESZ 6 + +#else /* BACKTRACE_XCOFF_SIZE != 32 */ + +typedef struct { + union { + uint32_t l_symndx; + uint64_t l_paddr; + } l_addr; + uint32_t l_lnno; +} b_xcoff_lineno; + +#define LINESZ 12 + +#endif /* BACKTRACE_XCOFF_SIZE != 32 */ + +#if BACKTRACE_XCOFF_SIZE == 32 +#define XCOFF_AIX_TEXTBASE 0x10000000u +#else +#define XCOFF_AIX_TEXTBASE 0x100000000ul +#endif + +/* AIX big archive fixed-length header. */ + +#define AIAMAGBIG "<bigaf>\n" + +typedef struct { + char fl_magic[8]; /* Archive magic string. */ + char fl_memoff[20]; /* Offset to member table. */ + char fl_gstoff[20]; /* Offset to global symbol table. */ + char fl_gst64off[20]; /* Offset to global symbol table for 64-bit objects. */ + char fl_fstmoff[20]; /* Offset to first archive member. */ + char fl_freeoff[20]; /* Offset to first member on free list. */ +} b_ar_fl_hdr; + +/* AIX big archive file member header. */ + +typedef struct { + char ar_size[20]; /* File member size - decimal. */ + char ar_nxtmem[20]; /* Next member offset - decimal. */ + char ar_prvmem[20]; /* Previous member offset - decimal. */ + char ar_date[12]; /* File member date - decimal. */ + char ar_uid[12]; /* File member userid - decimal. */ + char ar_gid[12]; /* File member group id - decimal. */ + char ar_mode[12]; /* File member mode - octal. */ + char ar_namlen[4]; /* File member name length - decimal. */ + char ar_name[2]; /* Start of member name. */ +} b_ar_hdr; + + +/* Information we keep for an XCOFF symbol. */ + +struct xcoff_symbol +{ + /* The name of the symbol. */ + const char *name; + /* The address of the symbol. */ + uintptr_t address; + /* The size of the symbol. */ + size_t size; +}; + +/* Information to pass to xcoff_syminfo. */ + +struct xcoff_syminfo_data +{ + /* Symbols for the next module. */ + struct xcoff_syminfo_data *next; + /* The XCOFF symbols, sorted by address. */ + struct xcoff_symbol *symbols; + /* The number of symbols. */ + size_t count; +}; + +/* Information about an include file. */ + +struct xcoff_incl +{ + /* File name. */ + const char *filename; + /* Offset to first line number from the include file. */ + uintptr_t begin; + /* Offset to last line number from the include file. */ + uintptr_t end; +}; + +/* A growable vector of include files information. */ + +struct xcoff_incl_vector +{ + /* Memory. This is an array of struct xcoff_incl. */ + struct backtrace_vector vec; + /* Number of include files. */ + size_t count; +}; + +/* A growable vector of functions information. */ + +struct xcoff_func +{ + /* PC. */ + uintptr_t pc; + /* The size of the function. */ + size_t size; + /* Function name. */ + const char *name; + /* File name. */ + const char *filename; + /* Pointer to first lnno entry. */ + uintptr_t lnnoptr; + /* Base address of containing section. */ + uintptr_t sect_base; + /* Starting source line number. */ + int lnno; +}; + +/* A growable vector of function information. This is used while + reading the function symbols. */ + +struct xcoff_func_vector +{ + /* Memory. This is an array of struct xcoff_func. */ + struct backtrace_vector vec; + /* Number of valid mappings. */ + size_t count; +}; + +/* The information we need to map a PC to a file and line. */ + +struct xcoff_fileline_data +{ + /* The data for the next file we know about. */ + struct xcoff_fileline_data *next; + /* Functions information. */ + struct xcoff_func_vector func_vec; + /* Include files information. */ + struct xcoff_incl_vector incl_vec; + /* Line numbers information. */ + const unsigned char *linenos; + size_t linenos_size; + uint64_t lnnoptr0; + /* Loader address. */ + uintptr_t base_address; +}; + +/* Information we gather for the DWARF sections we care about. */ + +struct dwsect_info +{ + /* Section file offset. */ + off_t offset; + /* Section size. */ + size_t size; + /* Section contents, after read from file. */ + const unsigned char *data; +}; + +/* A dummy callback function used when we can't find any debug info. */ + +static int +xcoff_nodebug (struct backtrace_state *state ATTRIBUTE_UNUSED, + uintptr_t pc ATTRIBUTE_UNUSED, + backtrace_full_callback callback ATTRIBUTE_UNUSED, + backtrace_error_callback error_callback, void *data) +{ + error_callback (data, "no debug info in XCOFF executable", -1); + return 0; +} + +/* A dummy callback function used when we can't find a symbol + table. */ + +static void +xcoff_nosyms (struct backtrace_state *state ATTRIBUTE_UNUSED, + uintptr_t addr ATTRIBUTE_UNUSED, + backtrace_syminfo_callback callback ATTRIBUTE_UNUSED, + backtrace_error_callback error_callback, void *data) +{ + error_callback (data, "no symbol table in XCOFF executable", -1); +} + +/* Compare struct xcoff_symbol for qsort. */ + +static int +xcoff_symbol_compare (const void *v1, const void *v2) +{ + const struct xcoff_symbol *e1 = (const struct xcoff_symbol *) v1; + const struct xcoff_symbol *e2 = (const struct xcoff_symbol *) v2; + + if (e1->address < e2->address) + return -1; + else if (e1->address > e2->address) + return 1; + else + return 0; +} + +/* Compare an ADDR against an xcoff_symbol for bsearch. */ + +static int +xcoff_symbol_search (const void *vkey, const void *ventry) +{ + const uintptr_t *key = (const uintptr_t *) vkey; + const struct xcoff_symbol *entry = (const struct xcoff_symbol *) ventry; + uintptr_t addr; + + addr = *key; + if (addr < entry->address) + return -1; + else if ((entry->size == 0 && addr > entry->address) + || (entry->size > 0 && addr >= entry->address + entry->size)) + return 1; + else + return 0; +} + +/* Add XDATA to the list in STATE. */ + +static void +xcoff_add_syminfo_data (struct backtrace_state *state, + struct xcoff_syminfo_data *xdata) +{ + if (!state->threaded) + { + struct xcoff_syminfo_data **pp; + + for (pp = (struct xcoff_syminfo_data **) (void *) &state->syminfo_data; + *pp != NULL; + pp = &(*pp)->next) + ; + *pp = xdata; + } + else + { + while (1) + { + struct xcoff_syminfo_data **pp; + + pp = (struct xcoff_syminfo_data **) (void *) &state->syminfo_data; + + while (1) + { + struct xcoff_syminfo_data *p; + + p = backtrace_atomic_load_pointer (pp); + + if (p == NULL) + break; + + pp = &p->next; + } + + if (__sync_bool_compare_and_swap (pp, NULL, xdata)) + break; + } + } +} + +/* Return the symbol name and value for an ADDR. */ + +static void +xcoff_syminfo (struct backtrace_state *state ATTRIBUTE_UNUSED, uintptr_t addr, + backtrace_syminfo_callback callback, + backtrace_error_callback error_callback ATTRIBUTE_UNUSED, + void *data) +{ + struct xcoff_syminfo_data *edata; + struct xcoff_symbol *sym = NULL; + const char *name; + + if (!state->threaded) + { + for (edata = (struct xcoff_syminfo_data *) state->syminfo_data; + edata != NULL; + edata = edata->next) + { + sym = ((struct xcoff_symbol *) + bsearch (&addr, edata->symbols, edata->count, + sizeof (struct xcoff_symbol), xcoff_symbol_search)); + if (sym != NULL) + break; + } + } + else + { + struct xcoff_syminfo_data **pp; + + pp = (struct xcoff_syminfo_data **) (void *) &state->syminfo_data; + while (1) + { + edata = backtrace_atomic_load_pointer (pp); + if (edata == NULL) + break; + + sym = ((struct xcoff_symbol *) + bsearch (&addr, edata->symbols, edata->count, + sizeof (struct xcoff_symbol), xcoff_symbol_search)); + if (sym != NULL) + break; + + pp = &edata->next; + } + } + + if (sym == NULL) + callback (data, addr, NULL, 0, 0); + else + { + name = sym->name; + /* AIX prepends a '.' to function entry points, remove it. */ + if (name && *name == '.') + ++name; + callback (data, addr, name, sym->address, sym->size); + } +} + +/* Return the name of an XCOFF symbol. */ + +static const char * +xcoff_symname (const b_xcoff_syment *asym, + const unsigned char *strtab, size_t strtab_size) +{ +#if BACKTRACE_XCOFF_SIZE == 32 + if (asym->n_zeroes != 0) + { + /* Make a copy as we will release the symtab view. */ + char name[SYMNMLEN+1]; + strncpy (name, asym->n_name, SYMNMLEN); + name[SYMNMLEN] = '\0'; + return strdup (name); + } +#endif + if (asym->n_sclass & 0x80) + return NULL; /* .debug */ + if (asym->n_offset_ >= strtab_size) + return NULL; + return (const char *) strtab + asym->n_offset_; +} + +/* Initialize the symbol table info for xcoff_syminfo. */ + +static int +xcoff_initialize_syminfo (struct backtrace_state *state, + uintptr_t base_address, + const b_xcoff_syment *syms, size_t nsyms, + const unsigned char *strtab, size_t strtab_size, + backtrace_error_callback error_callback, void *data, + struct xcoff_syminfo_data *sdata) +{ + size_t xcoff_symbol_count; + size_t xcoff_symbol_size; + struct xcoff_symbol *xcoff_symbols; + size_t i; + unsigned int j; + + /* We only care about function symbols. Count them. */ + xcoff_symbol_count = 0; + for (i = 0; i < nsyms; ++i) + { + const b_xcoff_syment *asym = &syms[i]; + if ((asym->n_sclass == C_EXT || asym->n_sclass == C_HIDEXT + || asym->n_sclass == C_WEAKEXT) + && ISFCN (asym->n_type) && asym->n_numaux > 0 && asym->n_scnum > 0) + ++xcoff_symbol_count; + + i += asym->n_numaux; + } + + xcoff_symbol_size = xcoff_symbol_count * sizeof (struct xcoff_symbol); + xcoff_symbols = ((struct xcoff_symbol *) + backtrace_alloc (state, xcoff_symbol_size, error_callback, + data)); + if (xcoff_symbols == NULL) + return 0; + + j = 0; + for (i = 0; i < nsyms; ++i) + { + const b_xcoff_syment *asym = &syms[i]; + if ((asym->n_sclass == C_EXT || asym->n_sclass == C_HIDEXT + || asym->n_sclass == C_WEAKEXT) + && ISFCN (asym->n_type) && asym->n_numaux > 0 && asym->n_scnum > 0) + { + const b_xcoff_auxent *aux = (const b_xcoff_auxent *) (asym + 1); + xcoff_symbols[j].name = xcoff_symname (asym, strtab, strtab_size); + xcoff_symbols[j].address = base_address + asym->n_value; + /* x_fsize will be 0 if there is no debug information. */ + xcoff_symbols[j].size = aux->x_fcn.x_fsize; + ++j; + } + + i += asym->n_numaux; + } + + backtrace_qsort (xcoff_symbols, xcoff_symbol_count, + sizeof (struct xcoff_symbol), xcoff_symbol_compare); + + sdata->next = NULL; + sdata->symbols = xcoff_symbols; + sdata->count = xcoff_symbol_count; + + return 1; +} + +/* Compare struct xcoff_func for qsort. */ + +static int +xcoff_func_compare (const void *v1, const void *v2) +{ + const struct xcoff_func *fn1 = (const struct xcoff_func *) v1; + const struct xcoff_func *fn2 = (const struct xcoff_func *) v2; + + if (fn1->pc < fn2->pc) + return -1; + else if (fn1->pc > fn2->pc) + return 1; + else + return 0; +} + +/* Compare a PC against an xcoff_func for bsearch. */ + +static int +xcoff_func_search (const void *vkey, const void *ventry) +{ + const uintptr_t *key = (const uintptr_t *) vkey; + const struct xcoff_func *entry = (const struct xcoff_func *) ventry; + uintptr_t pc; + + pc = *key; + if (pc < entry->pc) + return -1; + else if ((entry->size == 0 && pc > entry->pc) + || (entry->size > 0 && pc >= entry->pc + entry->size)) + return 1; + else + return 0; +} + +/* Compare struct xcoff_incl for qsort. */ + +static int +xcoff_incl_compare (const void *v1, const void *v2) +{ + const struct xcoff_incl *in1 = (const struct xcoff_incl *) v1; + const struct xcoff_incl *in2 = (const struct xcoff_incl *) v2; + + if (in1->begin < in2->begin) + return -1; + else if (in1->begin > in2->begin) + return 1; + else + return 0; +} + +/* Find a lnnoptr in an include file. */ + +static int +xcoff_incl_search (const void *vkey, const void *ventry) +{ + const uintptr_t *key = (const uintptr_t *) vkey; + const struct xcoff_incl *entry = (const struct xcoff_incl *) ventry; + uintptr_t lnno; + + lnno = *key; + if (lnno < entry->begin) + return -1; + else if (lnno > entry->end) + return 1; + else + return 0; +} + +/* Look for a PC in the function vector for one module. On success, + call CALLBACK and return whatever it returns. On error, call + ERROR_CALLBACK and return 0. Sets *FOUND to 1 if the PC is found, + 0 if not. */ + +static int +xcoff_lookup_pc (struct backtrace_state *state ATTRIBUTE_UNUSED, + struct xcoff_fileline_data *fdata, uintptr_t pc, + backtrace_full_callback callback, + backtrace_error_callback error_callback ATTRIBUTE_UNUSED, + void *data, int *found) +{ + const struct xcoff_incl *incl, *bincl; + const struct xcoff_func *fn; + const b_xcoff_lineno *lineno; + const unsigned char *lineptr; + const char *function; + const char *filename; + uintptr_t lnnoptr, match; + uint32_t lnno = 0; + + *found = 1; + + if ((pc & 3) != 0) + ++pc; + + /* Find the function first. */ + fn = ((struct xcoff_func *) + bsearch (&pc, fdata->func_vec.vec.base, fdata->func_vec.count, + sizeof (struct xcoff_func), xcoff_func_search)); + if (fn == NULL) + { + *found = 0; + return 0; + } + + filename = fn->filename; + + /* Find the line number next. */ + + /* Skip first entry that points to symtab. */ + lnnoptr = fn->lnnoptr + LINESZ; + match = lnnoptr; + + lineptr = fdata->linenos + (lnnoptr - fdata->lnnoptr0); + while (lineptr + LINESZ <= fdata->linenos + fdata->linenos_size) + { + lineno = (const b_xcoff_lineno *) lineptr; + if (lineno->l_lnno == 0) + break; + if (pc <= fdata->base_address + lineno->l_addr.l_paddr) + break; + match = lnnoptr; + lnno = lineno->l_lnno; + + lnnoptr += LINESZ; + lineptr += LINESZ; + } + + /* If part of a function other than the beginning comes from an + include file, the line numbers are absolute, rather than + relative to the beginning of the function. */ + incl = ((struct xcoff_incl *) + bsearch (&match, fdata->incl_vec.vec.base, + fdata->incl_vec.count, sizeof (struct xcoff_incl), + xcoff_incl_search)); + if (incl != NULL) + { + bincl = ((struct xcoff_incl *) + bsearch (&fn->lnnoptr, fdata->incl_vec.vec.base, + fdata->incl_vec.count, sizeof (struct xcoff_incl), + xcoff_incl_search)); + if (bincl != NULL && strcmp (incl->filename, bincl->filename) == 0) + { + lnno += fn->lnno - 1; + } + filename = incl->filename; + } + else + { + lnno += fn->lnno - 1; + } + + function = fn->name; + /* AIX prepends a '.' to function entry points, remove it. */ + if (function != NULL && *function == '.') + ++function; + return callback (data, pc, filename, lnno, function); +} + +/* Return the file/line information for a PC using the XCOFF lineno + mapping we built earlier. */ + +static int +xcoff_fileline (struct backtrace_state *state, uintptr_t pc, + backtrace_full_callback callback, + backtrace_error_callback error_callback, void *data) + +{ + struct xcoff_fileline_data *fdata; + int found; + int ret; + + if (!state->threaded) + { + for (fdata = (struct xcoff_fileline_data *) state->fileline_data; + fdata != NULL; + fdata = fdata->next) + { + ret = xcoff_lookup_pc (state, fdata, pc, callback, error_callback, + data, &found); + if (ret != 0 || found) + return ret; + } + } + else + { + struct xcoff_fileline_data **pp; + + pp = (struct xcoff_fileline_data **) (void *) &state->fileline_data; + while (1) + { + fdata = backtrace_atomic_load_pointer (pp); + if (fdata == NULL) + break; + + ret = xcoff_lookup_pc (state, fdata, pc, callback, error_callback, + data, &found); + if (ret != 0 || found) + return ret; + + pp = &fdata->next; + } + } + + /* FIXME: See if any libraries have been dlopen'ed. */ + + return callback (data, pc, NULL, 0, NULL); +} + +/* Initialize the function vector info for xcoff_fileline. */ + +static int +xcoff_initialize_fileline (struct backtrace_state *state, + uintptr_t base_address, + const b_xcoff_scnhdr *sects, + const b_xcoff_syment *syms, size_t nsyms, + const unsigned char *strtab, size_t strtab_size, + const unsigned char *linenos, size_t linenos_size, + uint64_t lnnoptr0, + backtrace_error_callback error_callback, void *data) +{ + struct xcoff_fileline_data *fdata; + struct xcoff_func *fn; + const b_xcoff_syment *fsym; + const b_xcoff_auxent *aux; + const char *filename; + const char *name; + struct xcoff_incl *incl; + uintptr_t begin, end; + uintptr_t lnno, lnnoptr; + uint32_t fsize; + size_t i; + + fdata = ((struct xcoff_fileline_data *) + backtrace_alloc (state, sizeof (struct xcoff_fileline_data), + error_callback, data)); + if (fdata == NULL) + return 0; + memset (fdata, 0, sizeof *fdata); + fdata->base_address = base_address; + fdata->linenos = linenos; + fdata->linenos_size = linenos_size; + fdata->lnnoptr0 = lnnoptr0; + + begin = 0; + filename = NULL; + fsym = NULL; + lnnoptr = 0; + fsize = 0; + for (i = 0; i < nsyms; ++i) + { + const b_xcoff_syment *asym = &syms[i]; + + switch (asym->n_sclass) + { + case C_BINCL: + begin = asym->n_value; + break; + + case C_EINCL: + if (begin == 0) + break; + end = asym->n_value; + incl = ((struct xcoff_incl *) + backtrace_vector_grow (state, sizeof (struct xcoff_incl), + error_callback, data, + &fdata->incl_vec.vec)); + if (incl != NULL) + { + incl->filename = xcoff_symname (asym, strtab, strtab_size); + incl->begin = begin; + incl->end = end; + ++fdata->incl_vec.count; + } + begin = 0; + break; + + case C_FILE: + filename = xcoff_symname (asym, strtab, strtab_size); + if (filename == NULL) + break; + + /* If the file auxiliary entry is not used, the symbol name is + the name of the source file. If the file auxiliary entry is + used, then the symbol name should be .file, and the first + file auxiliary entry (by convention) contains the source + file name. */ + + if (asym->n_numaux > 0 && strcmp (filename, ".file") == 0) + { + aux = (const b_xcoff_auxent *) (asym + 1); + if (aux->x_file._x.x_zeroes != 0) + { + /* Make a copy as we will release the symtab view. */ + char name[FILNMLEN+1]; + strncpy (name, aux->x_file.x_fname, FILNMLEN); + name[FILNMLEN] = '\0'; + filename = strdup (name); + } + else if (aux->x_file._x.x_offset < strtab_size) + filename = (const char *) strtab + aux->x_file._x.x_offset; + else + filename = NULL; + } + break; + + case C_EXT: + case C_HIDEXT: + case C_WEAKEXT: + fsym = NULL; + lnnoptr = 0; + fsize = 0; + if (!ISFCN (asym->n_type) || asym->n_numaux == 0 + || asym->n_scnum <= 0) + break; + if (filename == NULL) + break; + aux = (const b_xcoff_auxent *) (asym + 1); + lnnoptr = aux->x_fcn.x_lnnoptr; + if (lnnoptr < lnnoptr0 + || lnnoptr + LINESZ > lnnoptr0 + linenos_size) + break; + /* x_fsize will be 0 if there is no debug information. */ + fsize = aux->x_fcn.x_fsize; + fsym = asym; + break; + + case C_FCN: + if (asym->n_numaux == 0) + break; + if (fsym == NULL) + break; + name = xcoff_symname (asym, strtab, strtab_size); + if (name == NULL || strcmp (name, ".bf") != 0) + { + fsym = NULL; + break; + } + aux = (const b_xcoff_auxent *) (asym + 1); +#if BACKTRACE_XCOFF_SIZE == 32 + lnno = (uint32_t) aux->x_block.x_lnnohi << 16 + | aux->x_block.x_lnno; +#else + lnno = aux->x_block.x_lnno; +#endif + fn = ((struct xcoff_func *) + backtrace_vector_grow (state, sizeof (struct xcoff_func), + error_callback, data, + &fdata->func_vec.vec)); + if (fn == NULL) + break; + fn->name = xcoff_symname (fsym, strtab, strtab_size); + fn->filename = filename; + fn->sect_base = sects[fsym->n_scnum - 1].s_paddr; + fn->pc = base_address + fsym->n_value; + fn->size = fsize; + fn->lnno = lnno; + fn->lnnoptr = lnnoptr; + ++fdata->func_vec.count; + break; + } + + i += asym->n_numaux; + } + + if (!backtrace_vector_release (state, &fdata->func_vec.vec, error_callback, + data)) + goto fail; + backtrace_qsort (fdata->func_vec.vec.base, fdata->func_vec.count, + sizeof (struct xcoff_func), xcoff_func_compare); + + if (!backtrace_vector_release (state, &fdata->incl_vec.vec, error_callback, + data)) + goto fail; + backtrace_qsort (fdata->incl_vec.vec.base, fdata->incl_vec.count, + sizeof (struct xcoff_incl), xcoff_incl_compare); + + if (!state->threaded) + { + struct xcoff_fileline_data **pp; + + for (pp = (struct xcoff_fileline_data **) (void *) &state->fileline_data; + *pp != NULL; + pp = &(*pp)->next) + ; + *pp = fdata; + } + else + { + while (1) + { + struct xcoff_fileline_data **pp; + + pp = (struct xcoff_fileline_data **) (void *) &state->fileline_data; + + while (1) + { + struct xcoff_fileline_data *p; + + p = backtrace_atomic_load_pointer (pp); + + if (p == NULL) + break; + + pp = &p->next; + } + + if (__sync_bool_compare_and_swap (pp, NULL, fdata)) + break; + } + } + + return 1; + +fail: + return 0; +} + +/* Add the backtrace data for one XCOFF file. Returns 1 on success, + 0 on failure (in both cases descriptor is closed). */ + +static int +xcoff_add (struct backtrace_state *state, int descriptor, off_t offset, + uintptr_t base_address, backtrace_error_callback error_callback, + void *data, fileline *fileline_fn, int *found_sym, int exe) +{ + struct backtrace_view fhdr_view; + struct backtrace_view sects_view; + struct backtrace_view linenos_view; + struct backtrace_view syms_view; + struct backtrace_view str_view; + struct backtrace_view dwarf_view; + b_xcoff_filhdr fhdr; + const b_xcoff_scnhdr *sects; + const b_xcoff_scnhdr *stext; + uint64_t lnnoptr; + uint32_t nlnno; + off_t str_off; + off_t min_offset; + off_t max_offset; + struct dwsect_info dwsect[DEBUG_MAX]; + size_t sects_size; + size_t syms_size; + int32_t str_size; + int sects_view_valid; + int linenos_view_valid; + int syms_view_valid; + int str_view_valid; + int dwarf_view_valid; + int magic_ok; + int i; + struct dwarf_sections dwarf_sections; + + *found_sym = 0; + + sects_view_valid = 0; + linenos_view_valid = 0; + syms_view_valid = 0; + str_view_valid = 0; + dwarf_view_valid = 0; + + str_size = 0; + + /* Map the XCOFF file header. */ + if (!backtrace_get_view (state, descriptor, offset, sizeof (b_xcoff_filhdr), + error_callback, data, &fhdr_view)) + goto fail; + + memcpy (&fhdr, fhdr_view.data, sizeof fhdr); + magic_ok = (fhdr.f_magic == XCOFF_MAGIC); + + backtrace_release_view (state, &fhdr_view, error_callback, data); + + if (!magic_ok) + { + if (exe) + error_callback (data, "executable file is not XCOFF", 0); + goto fail; + } + + /* Verify object is of expected type. */ + if ((exe && (fhdr.f_flags & F_SHROBJ)) + || (!exe && !(fhdr.f_flags & F_SHROBJ))) + goto fail; + + /* Read the section headers. */ + + sects_size = fhdr.f_nscns * sizeof (b_xcoff_scnhdr); + + if (!backtrace_get_view (state, descriptor, + offset + sizeof (fhdr) + fhdr.f_opthdr, + sects_size, error_callback, data, §s_view)) + goto fail; + sects_view_valid = 1; + sects = (const b_xcoff_scnhdr *) sects_view.data; + + /* FIXME: assumes only one .text section. */ + for (i = 0; i < fhdr.f_nscns; ++i) + if ((sects[i].s_flags & 0xffff) == STYP_TEXT) + break; + if (i == fhdr.f_nscns) + goto fail; + + stext = §s[i]; + + /* base_address represents the difference between the + virtual memory address of the shared object or a loaded + executable and the offset of that object in the file + from which it was loaded. + On AIX, virtual address is either fixed for executable + or given by ldinfo. This address will include the XCOFF + headers. */ + base_address = ((exe ? XCOFF_AIX_TEXTBASE : base_address) + + stext->s_scnptr + - stext->s_paddr); + + lnnoptr = stext->s_lnnoptr; + nlnno = stext->s_nlnno; + +#if BACKTRACE_XCOFF_SIZE == 32 + if (nlnno == _OVERFLOW_MARKER) + { + int sntext = i + 1; + /* Find the matching .ovrflo section. */ + for (i = 0; i < fhdr.f_nscns; ++i) + { + if (((sects[i].s_flags & 0xffff) == STYP_OVRFLO) + && sects[i].s_nlnno == sntext) + { + nlnno = sects[i].s_vaddr; + break; + } + } + } +#endif + + /* Read the symbol table and the string table. */ + + if (fhdr.f_symptr != 0) + { + struct xcoff_syminfo_data *sdata; + + /* Symbol table is followed by the string table. The string table + starts with its length (on 4 bytes). + Map the symbol table and the length of the string table. */ + syms_size = fhdr.f_nsyms * sizeof (b_xcoff_syment); + + if (!backtrace_get_view (state, descriptor, offset + fhdr.f_symptr, + syms_size + 4, error_callback, data, + &syms_view)) + goto fail; + syms_view_valid = 1; + + memcpy (&str_size, syms_view.data + syms_size, 4); + + str_off = fhdr.f_symptr + syms_size; + + if (str_size > 4) + { + /* Map string table (including the length word). */ + + if (!backtrace_get_view (state, descriptor, offset + str_off, + str_size, error_callback, data, &str_view)) + goto fail; + str_view_valid = 1; + } + + sdata = ((struct xcoff_syminfo_data *) + backtrace_alloc (state, sizeof *sdata, error_callback, data)); + if (sdata == NULL) + goto fail; + + if (!xcoff_initialize_syminfo (state, base_address, + syms_view.data, fhdr.f_nsyms, + str_view.data, str_size, + error_callback, data, sdata)) + { + backtrace_free (state, sdata, sizeof *sdata, error_callback, data); + goto fail; + } + + *found_sym = 1; + + xcoff_add_syminfo_data (state, sdata); + } + + /* Read all the DWARF sections in a single view, since they are + probably adjacent in the file. We never release this view. */ + + min_offset = 0; + max_offset = 0; + memset (dwsect, 0, sizeof dwsect); + for (i = 0; i < fhdr.f_nscns; ++i) + { + off_t end; + int idx; + + if ((sects[i].s_flags & 0xffff) != STYP_DWARF + || sects[i].s_size == 0) + continue; + /* Map DWARF section to array index. */ + switch (sects[i].s_flags & 0xffff0000) + { + case SSUBTYP_DWINFO: + idx = DEBUG_INFO; + break; + case SSUBTYP_DWLINE: + idx = DEBUG_LINE; + break; + case SSUBTYP_DWABREV: + idx = DEBUG_ABBREV; + break; + case SSUBTYP_DWRNGES: + idx = DEBUG_RANGES; + break; + case SSUBTYP_DWSTR: + idx = DEBUG_STR; + break; + default: + continue; + } + if (min_offset == 0 || (off_t) sects[i].s_scnptr < min_offset) + min_offset = sects[i].s_scnptr; + end = sects[i].s_scnptr + sects[i].s_size; + if (end > max_offset) + max_offset = end; + dwsect[idx].offset = sects[i].s_scnptr; + dwsect[idx].size = sects[i].s_size; + } + if (min_offset != 0 && max_offset != 0) + { + if (!backtrace_get_view (state, descriptor, offset + min_offset, + max_offset - min_offset, + error_callback, data, &dwarf_view)) + goto fail; + dwarf_view_valid = 1; + + for (i = 0; i < (int) DEBUG_MAX; ++i) + { + if (dwsect[i].offset == 0) + dwsect[i].data = NULL; + else + dwsect[i].data = ((const unsigned char *) dwarf_view.data + + (dwsect[i].offset - min_offset)); + } + + memset (&dwarf_sections, 0, sizeof dwarf_sections); + + dwarf_sections.data[DEBUG_INFO] = dwsect[DEBUG_INFO].data; + dwarf_sections.size[DEBUG_INFO] = dwsect[DEBUG_INFO].size; + dwarf_sections.data[DEBUG_LINE] = dwsect[DEBUG_LINE].data; + dwarf_sections.size[DEBUG_LINE] = dwsect[DEBUG_LINE].size; + dwarf_sections.data[DEBUG_ABBREV] = dwsect[DEBUG_ABBREV].data; + dwarf_sections.size[DEBUG_ABBREV] = dwsect[DEBUG_ABBREV].size; + dwarf_sections.data[DEBUG_RANGES] = dwsect[DEBUG_RANGES].data; + dwarf_sections.size[DEBUG_RANGES] = dwsect[DEBUG_RANGES].size; + dwarf_sections.data[DEBUG_STR] = dwsect[DEBUG_STR].data; + dwarf_sections.size[DEBUG_STR] = dwsect[DEBUG_STR].size; + + if (!backtrace_dwarf_add (state, base_address, &dwarf_sections, + 1, /* big endian */ + NULL, /* altlink */ + error_callback, data, fileline_fn, + NULL /* returned fileline_entry */)) + goto fail; + } + + /* Read the XCOFF line number entries if DWARF sections not found. */ + + if (!dwarf_view_valid && fhdr.f_symptr != 0 && lnnoptr != 0) + { + size_t linenos_size = (size_t) nlnno * LINESZ; + + /* We never release this view. */ + if (!backtrace_get_view (state, descriptor, offset + lnnoptr, + linenos_size, + error_callback, data, &linenos_view)) + goto fail; + linenos_view_valid = 1; + + if (xcoff_initialize_fileline (state, base_address, sects, + syms_view.data, fhdr.f_nsyms, + str_view.data, str_size, + linenos_view.data, linenos_size, + lnnoptr, error_callback, data)) + *fileline_fn = xcoff_fileline; + } + + backtrace_release_view (state, §s_view, error_callback, data); + sects_view_valid = 0; + if (syms_view_valid) + backtrace_release_view (state, &syms_view, error_callback, data); + syms_view_valid = 0; + + /* We've read all we need from the executable. */ + if (!backtrace_close (descriptor, error_callback, data)) + goto fail; + descriptor = -1; + + return 1; + + fail: + if (sects_view_valid) + backtrace_release_view (state, §s_view, error_callback, data); + if (str_view_valid) + backtrace_release_view (state, &str_view, error_callback, data); + if (syms_view_valid) + backtrace_release_view (state, &syms_view, error_callback, data); + if (linenos_view_valid) + backtrace_release_view (state, &linenos_view, error_callback, data); + if (dwarf_view_valid) + backtrace_release_view (state, &dwarf_view, error_callback, data); + if (descriptor != -1 && offset == 0) + backtrace_close (descriptor, error_callback, data); + return 0; +} + +#ifdef HAVE_LOADQUERY + +/* Read an integer value in human-readable format from an AIX + big archive fixed-length or member header. */ + +static int +xcoff_parse_decimal (const char *buf, size_t size, off_t *off) +{ + char str[32]; + char *end; + + if (size >= sizeof str) + return 0; + memcpy (str, buf, size); + str[size] = '\0'; + *off = strtol (str, &end, 10); + if (*end != '\0' && *end != ' ') + return 0; + + return 1; +} + +/* Add the backtrace data for a member of an AIX big archive. + Returns 1 on success, 0 on failure. */ + +static int +xcoff_armem_add (struct backtrace_state *state, int descriptor, + uintptr_t base_address, const char *member, + backtrace_error_callback error_callback, void *data, + fileline *fileline_fn, int *found_sym) +{ + struct backtrace_view view; + b_ar_fl_hdr fl_hdr; + const b_ar_hdr *ar_hdr; + off_t off; + off_t len; + int memlen; + + *found_sym = 0; + + /* Map archive fixed-length header. */ + + if (!backtrace_get_view (state, descriptor, 0, sizeof (b_ar_fl_hdr), + error_callback, data, &view)) + goto fail; + + memcpy (&fl_hdr, view.data, sizeof (b_ar_fl_hdr)); + + backtrace_release_view (state, &view, error_callback, data); + + if (memcmp (fl_hdr.fl_magic, AIAMAGBIG, 8) != 0) + goto fail; + + memlen = strlen (member); + + /* Read offset of first archive member. */ + if (!xcoff_parse_decimal (fl_hdr.fl_fstmoff, sizeof fl_hdr.fl_fstmoff, &off)) + goto fail; + while (off != 0) + { + /* Map archive member header and member name. */ + + if (!backtrace_get_view (state, descriptor, off, + sizeof (b_ar_hdr) + memlen, + error_callback, data, &view)) + break; + + ar_hdr = (const b_ar_hdr *) view.data; + + /* Read archive member name length. */ + if (!xcoff_parse_decimal (ar_hdr->ar_namlen, sizeof ar_hdr->ar_namlen, + &len)) + { + backtrace_release_view (state, &view, error_callback, data); + break; + } + if (len == memlen && !memcmp (ar_hdr->ar_name, member, memlen)) + { + off = (off + sizeof (b_ar_hdr) + memlen + 1) & ~1; + + /* The archive can contain several members with the same name + (e.g. 32-bit and 64-bit), so continue if not ok. */ + + if (xcoff_add (state, descriptor, off, base_address, error_callback, + data, fileline_fn, found_sym, 0)) + { + backtrace_release_view (state, &view, error_callback, data); + return 1; + } + } + + /* Read offset of next archive member. */ + if (!xcoff_parse_decimal (ar_hdr->ar_nxtmem, sizeof ar_hdr->ar_nxtmem, + &off)) + { + backtrace_release_view (state, &view, error_callback, data); + break; + } + backtrace_release_view (state, &view, error_callback, data); + } + + fail: + /* No matching member found. */ + backtrace_close (descriptor, error_callback, data); + return 0; +} + +/* Add the backtrace data for dynamically loaded libraries. */ + +static void +xcoff_add_shared_libs (struct backtrace_state *state, + backtrace_error_callback error_callback, + void *data, fileline *fileline_fn, int *found_sym) +{ + const struct ld_info *ldinfo; + void *buf; + unsigned int buflen; + const char *member; + int descriptor; + int does_not_exist; + int lib_found_sym; + int ret; + + /* Retrieve the list of loaded libraries. */ + + buf = NULL; + buflen = 512; + do + { + buf = realloc (buf, buflen); + if (buf == NULL) + { + ret = -1; + break; + } + ret = loadquery (L_GETINFO, buf, buflen); + if (ret == 0) + break; + buflen *= 2; + } + while (ret == -1 && errno == ENOMEM); + if (ret != 0) + { + free (buf); + return; + } + + ldinfo = (const struct ld_info *) buf; + while ((const char *) ldinfo < (const char *) buf + buflen) + { + if (*ldinfo->ldinfo_filename != '/') + goto next; + + descriptor = backtrace_open (ldinfo->ldinfo_filename, error_callback, + data, &does_not_exist); + if (descriptor < 0) + goto next; + + /* Check if it is an archive (member name not empty). */ + + member = ldinfo->ldinfo_filename + strlen (ldinfo->ldinfo_filename) + 1; + if (*member) + { + xcoff_armem_add (state, descriptor, + (uintptr_t) ldinfo->ldinfo_textorg, member, + error_callback, data, fileline_fn, &lib_found_sym); + } + else + { + xcoff_add (state, descriptor, 0, (uintptr_t) ldinfo->ldinfo_textorg, + error_callback, data, fileline_fn, &lib_found_sym, 0); + } + if (lib_found_sym) + *found_sym = 1; + + next: + if (ldinfo->ldinfo_next == 0) + break; + ldinfo = (const struct ld_info *) ((const char *) ldinfo + + ldinfo->ldinfo_next); + } + + free (buf); +} +#endif /* HAVE_LOADQUERY */ + +/* Initialize the backtrace data we need from an XCOFF executable. + Returns 1 on success, 0 on failure. */ + +int +backtrace_initialize (struct backtrace_state *state, + const char *filename ATTRIBUTE_UNUSED, int descriptor, + backtrace_error_callback error_callback, + void *data, fileline *fileline_fn) +{ + int ret; + int found_sym; + fileline xcoff_fileline_fn = xcoff_nodebug; + + ret = xcoff_add (state, descriptor, 0, 0, error_callback, data, + &xcoff_fileline_fn, &found_sym, 1); + if (!ret) + return 0; + +#ifdef HAVE_LOADQUERY + xcoff_add_shared_libs (state, error_callback, data, &xcoff_fileline_fn, + &found_sym); +#endif + + if (!state->threaded) + { + if (found_sym) + state->syminfo_fn = xcoff_syminfo; + else if (state->syminfo_fn == NULL) + state->syminfo_fn = xcoff_nosyms; + } + else + { + if (found_sym) + backtrace_atomic_store_pointer (&state->syminfo_fn, xcoff_syminfo); + else + (void) __sync_bool_compare_and_swap (&state->syminfo_fn, NULL, + xcoff_nosyms); + } + + if (!state->threaded) + { + if (state->fileline_fn == NULL || state->fileline_fn == xcoff_nodebug) + *fileline_fn = xcoff_fileline_fn; + } + else + { + fileline current_fn; + + current_fn = backtrace_atomic_load_pointer (&state->fileline_fn); + if (current_fn == NULL || current_fn == xcoff_nodebug) + *fileline_fn = xcoff_fileline_fn; + } + + return 1; +} diff --git a/libbacktrace/xztest.c b/libbacktrace/xztest.c new file mode 100644 index 00000000000..b2533cb1804 --- /dev/null +++ b/libbacktrace/xztest.c @@ -0,0 +1,508 @@ +/* xztest.c -- Test for libbacktrace LZMA decoder. + Copyright (C) 2020-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <errno.h> +#include <limits.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include <sys/types.h> +#include <sys/stat.h> + +#ifdef HAVE_LIBLZMA +#include <lzma.h> +#endif + +#include "backtrace.h" +#include "backtrace-supported.h" + +#include "internal.h" +#include "testlib.h" + +#ifndef HAVE_CLOCK_GETTIME + +typedef int xclockid_t; + +static int +xclock_gettime (xclockid_t id ATTRIBUTE_UNUSED, + struct timespec *ts ATTRIBUTE_UNUSED) +{ + errno = EINVAL; + return -1; +} + +#define clockid_t xclockid_t +#define clock_gettime xclock_gettime +#undef CLOCK_REALTIME +#define CLOCK_REALTIME 0 + +#endif /* !defined(HAVE_CLOCK_GETTIME) */ + +#ifdef CLOCK_PROCESS_CPUTIME_ID +#define LIBLZMA_CLOCK_GETTIME_ARG CLOCK_PROCESS_CPUTIME_ID +#else +#define LIBLZMA_CLOCK_GETTIME_ARG CLOCK_REALTIME +#endif + +/* Some tests for the local lzma inflation code. */ + +struct lzma_test +{ + const char *name; + const char *uncompressed; + size_t uncompressed_len; + const char *compressed; + size_t compressed_len; +}; + +/* Error callback. */ + +static void +error_callback_compress (void *vdata ATTRIBUTE_UNUSED, const char *msg, + int errnum) +{ + fprintf (stderr, "%s", msg); + if (errnum > 0) + fprintf (stderr, ": %s", strerror (errnum)); + fprintf (stderr, "\n"); + exit (EXIT_FAILURE); +} + +static const struct lzma_test tests[] = +{ + { + "empty", + "", + 0, + ("\xfd\x37\x7a\x58\x5a\x00\x00\x04\xe6\xd6\xb4\x46\x00\x00\x00\x00" + "\x1c\xdf\x44\x21\x1f\xb6\xf3\x7d\x01\x00\x00\x00\x00\x04\x59\x5a"), + 32, + }, + { + "hello", + "hello, world\n", + 0, + ("\xfd\x37\x7a\x58\x5a\x00\x00\x04\xe6\xd6\xb4\x46\x02\x00\x21\x01" + "\x16\x00\x00\x00\x74\x2f\xe5\xa3\x01\x00\x0c\x68\x65\x6c\x6c\x6f" + "\x2c\x20\x77\x6f\x72\x6c\x64\x0a\x00\x00\x00\x00\x7b\x46\x5a\x81" + "\xc9\x12\xb8\xea\x00\x01\x25\x0d\x71\x19\xc4\xb6\x1f\xb6\xf3\x7d" + "\x01\x00\x00\x00\x00\x04\x59\x5a"), + 72, + }, + { + "goodbye", + "goodbye, world", + 0, + ("\xfd\x37\x7a\x58\x5a\x00\x00\x04\xe6\xd6\xb4\x46\x02\x00\x21\x01" + "\x16\x00\x00\x00\x74\x2f\xe5\xa3\x01\x00\x0d\x67\x6f\x6f\x64\x62" + "\x79\x65\x2c\x20\x77\x6f\x72\x6c\x64\x00\x00\x00\xf6\xf8\xa3\x33" + "\x8c\x4e\xc9\x68\x00\x01\x26\x0e\x08\x1b\xe0\x04\x1f\xb6\xf3\x7d" + "\x01\x00\x00\x00\x00\x04\x59\x5a"), + 72, + }, +}; + +/* Test the hand coded samples. */ + +static void +test_samples (struct backtrace_state *state) +{ + size_t i; + + for (i = 0; i < sizeof tests / sizeof tests[0]; ++i) + { + unsigned char *uncompressed; + size_t uncompressed_len; + + uncompressed = NULL; + uncompressed_len = 0; + if (!backtrace_uncompress_lzma (state, + ((const unsigned char *) + tests[i].compressed), + tests[i].compressed_len, + error_callback_compress, NULL, + &uncompressed, &uncompressed_len)) + { + fprintf (stderr, "test %s: uncompress failed\n", tests[i].name); + ++failures; + } + else + { + size_t v; + + v = tests[i].uncompressed_len; + if (v == 0) + v = strlen (tests[i].uncompressed); + if (uncompressed_len != v) + { + fprintf (stderr, + "test %s: got uncompressed length %zu, want %zu\n", + tests[i].name, uncompressed_len, v); + ++failures; + } + else if (memcmp (tests[i].uncompressed, uncompressed, v) != 0) + { + size_t j; + + fprintf (stderr, "test %s: uncompressed data mismatch\n", + tests[i].name); + for (j = 0; j < v; ++j) + if (tests[i].uncompressed[j] != uncompressed[j]) + fprintf (stderr, " %zu: got %#x want %#x\n", j, + uncompressed[j], tests[i].uncompressed[j]); + ++failures; + } + else + printf ("PASS: lzma %s\n", tests[i].name); + + backtrace_free (state, uncompressed, uncompressed_len, + error_callback_compress, NULL); + } + } +} + +#if HAVE_LIBLZMA + +/* Given a set of TRIALS timings, discard the lowest and highest + values and return the mean average of the rest. */ + +static size_t +average_time (const size_t *times, size_t trials) +{ + size_t imax; + size_t max; + size_t imin; + size_t min; + size_t i; + size_t sum; + + imin = 0; + imax = 0; + min = times[0]; + max = times[0]; + for (i = 1; i < trials; ++i) + { + if (times[i] < min) + { + imin = i; + min = times[i]; + } + if (times[i] > max) + { + imax = i; + max = times[i]; + } + } + + sum = 0; + for (i = 0; i < trials; ++i) + { + if (i != imax && i != imin) + sum += times[i]; + } + return sum / (trials - 2); +} + +#endif + +/* Test a larger text, if available. */ + +static void +test_large (struct backtrace_state *state ATTRIBUTE_UNUSED) +{ +#if HAVE_LIBLZMA + unsigned char *orig_buf; + size_t orig_bufsize; + size_t i; + lzma_stream initial_stream = LZMA_STREAM_INIT; + lzma_stream stream; + unsigned char *compressed_buf; + size_t compressed_bufsize; + unsigned char *uncompressed_buf; + size_t uncompressed_bufsize; + unsigned char *spare_buf; + int r; + clockid_t cid; + struct timespec ts1; + struct timespec ts2; + size_t ctime; + size_t ztime; + const size_t trials = 16; + size_t ctimes[16]; + size_t ztimes[16]; + static const char * const names[] = { + "Isaac.Newton-Opticks.txt", + "../libgo/go/testdata/Isaac.Newton-Opticks.txt", + }; + + orig_buf = NULL; + orig_bufsize = 0; + uncompressed_buf = NULL; + compressed_buf = NULL; + + for (i = 0; i < sizeof names / sizeof names[0]; ++i) + { + size_t len; + char *namebuf; + FILE *e; + struct stat st; + char *rbuf; + size_t got; + + len = strlen (SRCDIR) + strlen (names[i]) + 2; + namebuf = malloc (len); + if (namebuf == NULL) + { + perror ("malloc"); + goto fail; + } + snprintf (namebuf, len, "%s/%s", SRCDIR, names[i]); + e = fopen (namebuf, "r"); + free (namebuf); + if (e == NULL) + continue; + if (fstat (fileno (e), &st) < 0) + { + perror ("fstat"); + fclose (e); + continue; + } + rbuf = malloc (st.st_size); + if (rbuf == NULL) + { + perror ("malloc"); + goto fail; + } + got = fread (rbuf, 1, st.st_size, e); + fclose (e); + if (got > 0) + { + orig_buf = (unsigned char *) rbuf; + orig_bufsize = got; + break; + } + free (rbuf); + } + + if (orig_buf == NULL) + { + /* We couldn't find an input file. */ + printf ("UNSUPPORTED: lzma large\n"); + return; + } + + stream = initial_stream; + r = lzma_easy_encoder (&stream, 6, LZMA_CHECK_CRC32); + if (r != LZMA_OK) + { + fprintf (stderr, "lzma_easy_encoder failed: %d\n", r); + goto fail; + } + + compressed_bufsize = orig_bufsize + 100; + compressed_buf = malloc (compressed_bufsize); + if (compressed_buf == NULL) + { + perror ("malloc"); + goto fail; + } + + stream.next_in = orig_buf; + stream.avail_in = orig_bufsize; + stream.next_out = compressed_buf; + stream.avail_out = compressed_bufsize; + + do + { + r = lzma_code (&stream, LZMA_FINISH); + if (r != LZMA_OK && r != LZMA_STREAM_END) + { + fprintf (stderr, "lzma_code failed: %d\n", r); + goto fail; + } + } + while (r != LZMA_STREAM_END); + + compressed_bufsize = stream.total_out; + + if (!backtrace_uncompress_lzma (state, (unsigned char *) compressed_buf, + compressed_bufsize, + error_callback_compress, NULL, + &uncompressed_buf, &uncompressed_bufsize)) + { + fprintf (stderr, "lzma large: backtrace_uncompress_lzma failed\n"); + goto fail; + } + + if (uncompressed_bufsize != orig_bufsize) + { + fprintf (stderr, + "lzma large: got uncompressed length %zu, want %zu\n", + uncompressed_bufsize, orig_bufsize); + goto fail; + } + + if (memcmp (uncompressed_buf, orig_buf, uncompressed_bufsize) != 0) + { + fprintf (stderr, "lzma large: uncompressed data mismatch\n"); + goto fail; + } + + printf ("PASS: lzma large\n"); + + spare_buf = malloc (orig_bufsize); + if (spare_buf == NULL) + { + perror ("malloc"); + goto fail; + } + + for (i = 0; i < trials; ++i) + { + cid = LIBLZMA_CLOCK_GETTIME_ARG; + if (clock_gettime (cid, &ts1) < 0) + { + if (errno == EINVAL) + return; + perror ("clock_gettime"); + return; + } + + if (!backtrace_uncompress_lzma (state, + (unsigned char *) compressed_buf, + compressed_bufsize, + error_callback_compress, NULL, + &uncompressed_buf, + &uncompressed_bufsize)) + { + fprintf (stderr, + ("lzma large: " + "benchmark backtrace_uncompress_lzma failed\n")); + return; + } + + if (clock_gettime (cid, &ts2) < 0) + { + perror ("clock_gettime"); + return; + } + + ctime = (ts2.tv_sec - ts1.tv_sec) * 1000000000; + ctime += ts2.tv_nsec - ts1.tv_nsec; + ctimes[i] = ctime; + + stream = initial_stream; + + r = lzma_auto_decoder (&stream, UINT64_MAX, 0); + if (r != LZMA_OK) + { + fprintf (stderr, "lzma_stream_decoder failed: %d\n", r); + goto fail; + } + + stream.next_in = compressed_buf; + stream.avail_in = compressed_bufsize; + stream.next_out = spare_buf; + stream.avail_out = orig_bufsize; + + if (clock_gettime (cid, &ts1) < 0) + { + perror("clock_gettime"); + return; + } + + do + { + r = lzma_code (&stream, LZMA_FINISH); + if (r != LZMA_OK && r != LZMA_STREAM_END) + { + fprintf (stderr, "lzma_code failed: %d\n", r); + goto fail; + } + } + while (r != LZMA_STREAM_END); + + if (clock_gettime (cid, &ts2) < 0) + { + perror ("clock_gettime"); + return; + } + + ztime = (ts2.tv_sec - ts1.tv_sec) * 1000000000; + ztime += ts2.tv_nsec - ts1.tv_nsec; + ztimes[i] = ztime; + } + + /* Toss the highest and lowest times and average the rest. */ + ctime = average_time (ctimes, trials); + ztime = average_time (ztimes, trials); + + printf ("backtrace: %zu ns\n", ctime); + printf ("liblzma : %zu ns\n", ztime); + printf ("ratio : %g\n", (double) ztime / (double) ctime); + + return; + + fail: + printf ("FAIL: lzma large\n"); + ++failures; + + if (orig_buf != NULL) + free (orig_buf); + if (compressed_buf != NULL) + free (compressed_buf); + if (uncompressed_buf != NULL) + free (uncompressed_buf); + +#else /* !HAVE_LIBLZMA */ + + printf ("UNSUPPORTED: lzma large\n"); + +#endif /* !HAVE_LIBLZMA */ +} + +int +main (int argc ATTRIBUTE_UNUSED, char **argv) +{ + struct backtrace_state *state; + + state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS, + error_callback_create, NULL); + + test_samples (state); + test_large (state); + + exit (failures != 0 ? EXIT_FAILURE : EXIT_SUCCESS); +} diff --git a/libbacktrace/ztest.c b/libbacktrace/ztest.c new file mode 100644 index 00000000000..4e79c09517d --- /dev/null +++ b/libbacktrace/ztest.c @@ -0,0 +1,541 @@ +/* ztest.c -- Test for libbacktrace inflate code. + Copyright (C) 2017-2021 Free Software Foundation, Inc. + Written by Ian Lance Taylor, Google. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + (1) Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + (2) Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + (3) The name of the author may not be used to + endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, +INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. */ + +#include "config.h" + +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include <sys/types.h> +#include <sys/stat.h> + +#ifdef HAVE_ZLIB +#include <zlib.h> +#endif + +#include "backtrace.h" +#include "backtrace-supported.h" + +#include "internal.h" +#include "testlib.h" + +#ifndef HAVE_CLOCK_GETTIME + +typedef int xclockid_t; + +static int +xclock_gettime (xclockid_t id ATTRIBUTE_UNUSED, + struct timespec *ts ATTRIBUTE_UNUSED) +{ + errno = EINVAL; + return -1; +} + +#define clockid_t xclockid_t +#define clock_gettime xclock_gettime +#undef CLOCK_REALTIME +#define CLOCK_REALTIME 0 + +#endif /* !defined(HAVE_CLOCK_GETTIME) */ + +#ifdef CLOCK_PROCESS_CPUTIME_ID +#define ZLIB_CLOCK_GETTIME_ARG CLOCK_PROCESS_CPUTIME_ID +#else +#define ZLIB_CLOCK_GETTIME_ARG CLOCK_REALTIME +#endif + +/* Some tests for the local zlib inflation code. */ + +struct zlib_test +{ + const char *name; + const char *uncompressed; + size_t uncompressed_len; + const char *compressed; + size_t compressed_len; +}; + +/* Error callback. */ + +static void +error_callback_compress (void *vdata ATTRIBUTE_UNUSED, const char *msg, + int errnum) +{ + fprintf (stderr, "%s", msg); + if (errnum > 0) + fprintf (stderr, ": %s", strerror (errnum)); + fprintf (stderr, "\n"); + exit (EXIT_FAILURE); +} + +static const struct zlib_test tests[] = +{ + { + "empty", + "", + 0, + "\x78\x9c\x03\x00\x00\x00\x00\x01", + 8, + }, + { + "hello", + "hello, world\n", + 0, + ("\x78\x9c\xca\x48\xcd\xc9\xc9\xd7\x51\x28\xcf" + "\x2f\xca\x49\xe1\x02\x04\x00\x00\xff\xff\x21\xe7\x04\x93"), + 25, + }, + { + "goodbye", + "goodbye, world", + 0, + ("\x78\x9c\x4b\xcf\xcf\x4f\x49\xaa" + "\x4c\xd5\x51\x28\xcf\x2f\xca\x49" + "\x01\x00\x28\xa5\x05\x5e"), + 22, + }, + { + "ranges", + ("\xcc\x11\x00\x00\x00\x00\x00\x00\xd5\x13\x00\x00\x00\x00\x00\x00" + "\x1c\x14\x00\x00\x00\x00\x00\x00\x72\x14\x00\x00\x00\x00\x00\x00" + "\x9d\x14\x00\x00\x00\x00\x00\x00\xd5\x14\x00\x00\x00\x00\x00\x00" + "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" + "\xfb\x12\x00\x00\x00\x00\x00\x00\x09\x13\x00\x00\x00\x00\x00\x00" + "\x0c\x13\x00\x00\x00\x00\x00\x00\xcb\x13\x00\x00\x00\x00\x00\x00" + "\x29\x14\x00\x00\x00\x00\x00\x00\x4e\x14\x00\x00\x00\x00\x00\x00" + "\x9d\x14\x00\x00\x00\x00\x00\x00\xd5\x14\x00\x00\x00\x00\x00\x00" + "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" + "\xfb\x12\x00\x00\x00\x00\x00\x00\x09\x13\x00\x00\x00\x00\x00\x00" + "\x67\x13\x00\x00\x00\x00\x00\x00\xcb\x13\x00\x00\x00\x00\x00\x00" + "\x9d\x14\x00\x00\x00\x00\x00\x00\xd5\x14\x00\x00\x00\x00\x00\x00" + "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" + "\x5f\x0b\x00\x00\x00\x00\x00\x00\x6c\x0b\x00\x00\x00\x00\x00\x00" + "\x7d\x0b\x00\x00\x00\x00\x00\x00\x7e\x0c\x00\x00\x00\x00\x00\x00" + "\x38\x0f\x00\x00\x00\x00\x00\x00\x5c\x0f\x00\x00\x00\x00\x00\x00" + "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" + "\x83\x0c\x00\x00\x00\x00\x00\x00\xfa\x0c\x00\x00\x00\x00\x00\x00" + "\xfd\x0d\x00\x00\x00\x00\x00\x00\xef\x0e\x00\x00\x00\x00\x00\x00" + "\x14\x0f\x00\x00\x00\x00\x00\x00\x38\x0f\x00\x00\x00\x00\x00\x00" + "\x9f\x0f\x00\x00\x00\x00\x00\x00\xac\x0f\x00\x00\x00\x00\x00\x00" + "\xdb\x0f\x00\x00\x00\x00\x00\x00\xff\x0f\x00\x00\x00\x00\x00\x00" + "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" + "\xfd\x0d\x00\x00\x00\x00\x00\x00\xd8\x0e\x00\x00\x00\x00\x00\x00" + "\x9f\x0f\x00\x00\x00\x00\x00\x00\xac\x0f\x00\x00\x00\x00\x00\x00" + "\xdb\x0f\x00\x00\x00\x00\x00\x00\xff\x0f\x00\x00\x00\x00\x00\x00" + "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" + "\xfa\x0c\x00\x00\x00\x00\x00\x00\xea\x0d\x00\x00\x00\x00\x00\x00" + "\xef\x0e\x00\x00\x00\x00\x00\x00\x14\x0f\x00\x00\x00\x00\x00\x00" + "\x5c\x0f\x00\x00\x00\x00\x00\x00\x9f\x0f\x00\x00\x00\x00\x00\x00" + "\xac\x0f\x00\x00\x00\x00\x00\x00\xdb\x0f\x00\x00\x00\x00\x00\x00" + "\xff\x0f\x00\x00\x00\x00\x00\x00\x2c\x10\x00\x00\x00\x00\x00\x00" + "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" + "\x60\x11\x00\x00\x00\x00\x00\x00\xd1\x16\x00\x00\x00\x00\x00\x00" + "\x40\x0b\x00\x00\x00\x00\x00\x00\x2c\x10\x00\x00\x00\x00\x00\x00" + "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" + "\x7a\x00\x00\x00\x00\x00\x00\x00\xb6\x00\x00\x00\x00\x00\x00\x00" + "\x9f\x01\x00\x00\x00\x00\x00\x00\xa7\x01\x00\x00\x00\x00\x00\x00" + "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" + "\x7a\x00\x00\x00\x00\x00\x00\x00\xa9\x00\x00\x00\x00\x00\x00\x00" + "\x9f\x01\x00\x00\x00\x00\x00\x00\xa7\x01\x00\x00\x00\x00\x00\x00" + "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"), + 672, + ("\x78\x9c\x3b\x23\xc8\x00\x06\x57\x85\x21\xb4\x8c\x08\x84\x2e\x82" + "\xd2\x73\xa1\xf4\x55\x28\x8d\x0e\x7e\x0b\x41\x68\x4e\xa8\x7e\x1e" + "\x28\x7d\x1a\x4a\x6b\x42\xf5\xf9\x91\x69\x5e\x3a\x9a\x79\x84\xf4" + "\xc7\x73\x43\xe8\x1c\x28\x5d\x0b\xa5\xeb\x78\x20\xb4\x05\x3f\x84" + "\x8e\xe1\xc7\xae\xbf\x19\xaa\xee\x17\x94\xfe\xcb\x0b\xa1\xdf\xf3" + "\x41\x68\x11\x7e\x54\x73\xe6\x43\xe9\x35\x50\xfa\x36\x94\xfe\x8f" + "\xc3\x7c\x98\x79\x37\xf8\xc8\xd3\x0f\x73\xd7\x2b\x1c\xee\x8a\x21" + "\xd2\x5d\x3a\x02\xd8\xcd\x4f\x80\xa6\x87\x8b\x62\x10\xda\x81\x1b" + "\xbf\xfa\x2a\x28\xbd\x0d\x4a\xcf\x67\x84\xd0\xcb\x19\xf1\xab\x5f" + "\x49\xa4\x7a\x00\x48\x97\x29\xd4"), + 152, + } +}; + +/* Test the hand coded samples. */ + +static void +test_samples (struct backtrace_state *state) +{ + size_t i; + + for (i = 0; i < sizeof tests / sizeof tests[0]; ++i) + { + char *p; + size_t v; + size_t j; + unsigned char *uncompressed; + size_t uncompressed_len; + + p = malloc (12 + tests[i].compressed_len); + memcpy (p, "ZLIB", 4); + v = tests[i].uncompressed_len; + if (v == 0) + v = strlen (tests[i].uncompressed); + for (j = 0; j < 8; ++j) + p[j + 4] = (v >> ((7 - j) * 8)) & 0xff; + memcpy (p + 12, tests[i].compressed, tests[i].compressed_len); + uncompressed = NULL; + uncompressed_len = 0; + if (!backtrace_uncompress_zdebug (state, (unsigned char *) p, + tests[i].compressed_len + 12, + error_callback_compress, NULL, + &uncompressed, &uncompressed_len)) + { + fprintf (stderr, "test %s: uncompress failed\n", tests[i].name); + ++failures; + } + else + { + if (uncompressed_len != v) + { + fprintf (stderr, + "test %s: got uncompressed length %zu, want %zu\n", + tests[i].name, uncompressed_len, v); + ++failures; + } + else if (memcmp (tests[i].uncompressed, uncompressed, v) != 0) + { + size_t j; + + fprintf (stderr, "test %s: uncompressed data mismatch\n", + tests[i].name); + for (j = 0; j < v; ++j) + if (tests[i].uncompressed[j] != uncompressed[j]) + fprintf (stderr, " %zu: got %#x want %#x\n", j, + uncompressed[j], tests[i].uncompressed[j]); + ++failures; + } + else + printf ("PASS: inflate %s\n", tests[i].name); + + backtrace_free (state, uncompressed, uncompressed_len, + error_callback_compress, NULL); + } + } +} + +#ifdef HAVE_ZLIB + +/* Given a set of TRIALS timings, discard the lowest and highest + values and return the mean average of the rest. */ + +static size_t +average_time (const size_t *times, size_t trials) +{ + size_t imax; + size_t max; + size_t imin; + size_t min; + size_t i; + size_t sum; + + imin = 0; + imax = 0; + min = times[0]; + max = times[0]; + for (i = 1; i < trials; ++i) + { + if (times[i] < min) + { + imin = i; + min = times[i]; + } + if (times[i] > max) + { + imax = i; + max = times[i]; + } + } + + sum = 0; + for (i = 0; i < trials; ++i) + { + if (i != imax && i != imin) + sum += times[i]; + } + return sum / (trials - 2); +} + +#endif + +/* Test a larger text, if available. */ + +static void +test_large (struct backtrace_state *state ATTRIBUTE_UNUSED) +{ +#ifdef HAVE_ZLIB + unsigned char *orig_buf; + size_t orig_bufsize; + size_t i; + char *compressed_buf; + size_t compressed_bufsize; + unsigned long compress_sizearg; + unsigned char *uncompressed_buf; + size_t uncompressed_bufsize; + int r; + clockid_t cid; + struct timespec ts1; + struct timespec ts2; + size_t ctime; + size_t ztime; + const size_t trials = 16; + size_t ctimes[16]; + size_t ztimes[16]; + static const char * const names[] = { + "Isaac.Newton-Opticks.txt", + "../libgo/go/testdata/Isaac.Newton-Opticks.txt", + }; + + orig_buf = NULL; + orig_bufsize = 0; + uncompressed_buf = NULL; + compressed_buf = NULL; + + for (i = 0; i < sizeof names / sizeof names[0]; ++i) + { + size_t len; + char *namebuf; + FILE *e; + struct stat st; + char *rbuf; + size_t got; + + len = strlen (SRCDIR) + strlen (names[i]) + 2; + namebuf = malloc (len); + if (namebuf == NULL) + { + perror ("malloc"); + goto fail; + } + snprintf (namebuf, len, "%s/%s", SRCDIR, names[i]); + e = fopen (namebuf, "r"); + free (namebuf); + if (e == NULL) + continue; + if (fstat (fileno (e), &st) < 0) + { + perror ("fstat"); + fclose (e); + continue; + } + rbuf = malloc (st.st_size); + if (rbuf == NULL) + { + perror ("malloc"); + goto fail; + } + got = fread (rbuf, 1, st.st_size, e); + fclose (e); + if (got > 0) + { + orig_buf = (unsigned char *) rbuf; + orig_bufsize = got; + break; + } + free (rbuf); + } + + if (orig_buf == NULL) + { + /* We couldn't find an input file. */ + printf ("UNSUPPORTED: inflate large\n"); + return; + } + + compressed_bufsize = compressBound (orig_bufsize) + 12; + compressed_buf = malloc (compressed_bufsize); + if (compressed_buf == NULL) + { + perror ("malloc"); + goto fail; + } + + compress_sizearg = compressed_bufsize - 12; + r = compress ((unsigned char *) compressed_buf + 12, &compress_sizearg, + orig_buf, orig_bufsize); + if (r != Z_OK) + { + fprintf (stderr, "zlib compress failed: %d\n", r); + goto fail; + } + + compressed_bufsize = compress_sizearg + 12; + + /* Prepare the header that our library expects. */ + memcpy (compressed_buf, "ZLIB", 4); + for (i = 0; i < 8; ++i) + compressed_buf[i + 4] = (orig_bufsize >> ((7 - i) * 8)) & 0xff; + + uncompressed_buf = malloc (orig_bufsize); + if (uncompressed_buf == NULL) + { + perror ("malloc"); + goto fail; + } + uncompressed_bufsize = orig_bufsize; + + if (!backtrace_uncompress_zdebug (state, (unsigned char *) compressed_buf, + compressed_bufsize, + error_callback_compress, NULL, + &uncompressed_buf, &uncompressed_bufsize)) + { + fprintf (stderr, "inflate large: backtrace_uncompress_zdebug failed\n"); + goto fail; + } + + if (uncompressed_bufsize != orig_bufsize) + { + fprintf (stderr, + "inflate large: got uncompressed length %zu, want %zu\n", + uncompressed_bufsize, orig_bufsize); + goto fail; + } + + if (memcmp (uncompressed_buf, orig_buf, uncompressed_bufsize) != 0) + { + fprintf (stderr, "inflate large: uncompressed data mismatch\n"); + goto fail; + } + + printf ("PASS: inflate large\n"); + + for (i = 0; i < trials; ++i) + { + unsigned long uncompress_sizearg; + + cid = ZLIB_CLOCK_GETTIME_ARG; + if (clock_gettime (cid, &ts1) < 0) + { + if (errno == EINVAL) + return; + perror ("clock_gettime"); + return; + } + + if (!backtrace_uncompress_zdebug (state, + (unsigned char *) compressed_buf, + compressed_bufsize, + error_callback_compress, NULL, + &uncompressed_buf, + &uncompressed_bufsize)) + { + fprintf (stderr, + ("inflate large: " + "benchmark backtrace_uncompress_zdebug failed\n")); + return; + } + + if (clock_gettime (cid, &ts2) < 0) + { + perror ("clock_gettime"); + return; + } + + ctime = (ts2.tv_sec - ts1.tv_sec) * 1000000000; + ctime += ts2.tv_nsec - ts1.tv_nsec; + ctimes[i] = ctime; + + if (clock_gettime (cid, &ts1) < 0) + { + perror("clock_gettime"); + return; + } + + uncompress_sizearg = uncompressed_bufsize; + r = uncompress ((unsigned char *) uncompressed_buf, &uncompress_sizearg, + (unsigned char *) compressed_buf + 12, + compressed_bufsize - 12); + + if (clock_gettime (cid, &ts2) < 0) + { + perror ("clock_gettime"); + return; + } + + if (r != Z_OK) + { + fprintf (stderr, + "inflate large: benchmark zlib uncompress failed: %d\n", + r); + return; + } + + ztime = (ts2.tv_sec - ts1.tv_sec) * 1000000000; + ztime += ts2.tv_nsec - ts1.tv_nsec; + ztimes[i] = ztime; + } + + /* Toss the highest and lowest times and average the rest. */ + ctime = average_time (ctimes, trials); + ztime = average_time (ztimes, trials); + + printf ("backtrace: %zu ns\n", ctime); + printf ("zlib : %zu ns\n", ztime); + printf ("ratio : %g\n", (double) ztime / (double) ctime); + + return; + + fail: + printf ("FAIL: inflate large\n"); + ++failures; + + if (orig_buf != NULL) + free (orig_buf); + if (compressed_buf != NULL) + free (compressed_buf); + if (uncompressed_buf != NULL) + free (uncompressed_buf); + +#else /* !HAVE_ZLIB */ + + printf ("UNSUPPORTED: inflate large\n"); + +#endif /* !HAVE_ZLIB */ +} + +int +main (int argc ATTRIBUTE_UNUSED, char **argv) +{ + struct backtrace_state *state; + + state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS, + error_callback_create, NULL); + + test_samples (state); + test_large (state); + + exit (failures != 0 ? EXIT_FAILURE : EXIT_SUCCESS); +} |