| Commit message (Collapse) | Author | Age | Files | Lines |
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.comment section.
PR 30187
* NEWS: Mention the new feature. * ld.texi: Document the new feature. * ldgram.y: Handle LINKER_VERSION token. * ldlang.c (lang_add_version): New function. (enable_linker_version): New global variable. * ldlang.h (land_add_version): Prototype. (enable_linker_version): Export. * ldlex.h (OPTION_ENABLE_LINKER_VERSION): Define. (OPTION_DISABLE_LINKER_VERSION): Define. * ldlex.l (LINKER_VERSION): Add token. * lexsup.c (ld_options): Add --enable-linker-version and --disable-linker-version. (parse_args): Handle the new options. * scripttempl/arclinux.sc: Remove stabs and comment sections and replace with inclusion of misc-sections.sc * scripttempl/avr.sc: Likewise. * scripttempl/dlx.sc: Likewise. * scripttempl/elf.sc: Likewise. * scripttempl/elf32cr16.sc: Likewise. * scripttempl/elf32crx.sc: Likewise. * scripttempl/elf32msp430.sc: Likewise. * scripttempl/elf64bpf.sc: Likewise. * scripttempl/elf64hppa.sc: Likewise. * scripttempl/elf_chaos.sc: Likewise. * scripttempl/elfarc.sc: Likewise. * scripttempl/elfarcv2.sc: Likewise. * scripttempl/elfd10v.sc: Likewise. * scripttempl/elfd30v.sc: Likewise. * scripttempl/elfm68hc11.sc: Likewise. * scripttempl/elfm68hc12.sc: Likewise. * scripttempl/elfm9s12z.sc: Likewise. * scripttempl/elfmicroblaze.sc: Likewise. * scripttempl/elfxgate.sc: Likewise. * scripttempl/elfxtensa.sc: Likewise. * scripttempl/epiphany_4x4.sc: Likewise. * scripttempl/ft32.sc: Likewise. * scripttempl/ip2k.sc: Likewise. * scripttempl/iq2000.sc: Likewise. * scripttempl/mep.sc: Likewise. * scripttempl/nds32elf.sc: Likewise. * scripttempl/pru.sc: Likewise. * scripttempl/v850.sc: Likewise. * scripttempl/v850_rh850.sc: Likewise. * scripttempl/visium.sc: Likewise. * scripttempl/xstormy16.sc: Likewise. * scripttempl/z80.sc: Likewise. * testsuite/ld-scripts/script.exp: Run new tests. * scripttempl/misc-sections.sc: New file. * testsuite/ld-scripts/ld-version-2.d: New file. * testsuite/ld-scripts/ld-version.d: New file. * testsuite/ld-scripts/ld-version.t: New file.
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When using a bss-plt we'll always trigger the RWX warning, which
disturbs gcc test results. On the other hand, there may be reason to
want the warning when gcc is configured with --enable-secureplt.
So turning off the warning entirely for powerpc might not be the best
solution. Instead, we'll turn off the warning whenever a bss-plt is
generated, unless the user explicitly asked for the warning.
bfd/
* elf32-ppc.c (ppc_elf_select_plt_layout): Set
no_warn_rwx_segments on generating a bss plt, unless explicity
enabled by the user. Also show the bss-plt warning when
--warn-rwx-segments is given without --bss-plt.
include/
* bfdlink.h (struct bfd_link_info): Add user_warn_rwx_segments.
ld/
* lexsup.c (parse_args): Set user_warn_rwx_segments.
* testsuite/ld-elf/elf.exp: Pass --secure-plt for powerpc to
the rwx tests.
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The newer update-copyright.py fixes file encoding too, removing cr/lf
on binutils/bfdtest2.c and ld/testsuite/ld-cygwin/exe-export.exp, and
embedded cr in binutils/testsuite/binutils-all/ar.exp string match.
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Tidies:
- Move stuff from bfd-in.h and libbfd.c to compress.c
- Delete COMPRESS_DEBUG from enum compressed_debug_section_type
- Move compress_debug field out of link_info to ld_config.
Fixes:
- Correct test in bfd_convert_section_setup to use obfd flags,
not ibfd.
- Apply bfd_applicable_file_flags to compression bfd flags added
by gas and ld to the output bfd.
bfd/
* bfd-in.h (enum compressed_debug_section_type),
(struct compressed_type_tuple),
(bfd_get_compression_algorithm),
(bfd_get_compression_algorithm_name),
* libbfd.c (compressed_debug_section_names),
(bfd_get_compression_algorithm),
(bfd_get_compression_algorithm_name): Move..
* compress.c: ..to here, deleting COMPRESS_DEBUG from
enum compressed_debug_section_type.
(bfd_convert_section_setup): Test obfd flags not ibfd for
compression flags.
* elf.c (elf_fake_sections): Replace link_info->compress_debug
test with abfd->flags test.
* bfd-in2.h: Regenerate.
binutils/
* objcopy.c (copy_file): Tidy setting of bfd compress flags.
Expand comment.
gas/
* write.c (compress_debug): Test bfd compress flags rather than
flag_compress_debug.
(write_object_file): Apply bfd_applicable_file_flags to compress
debug flags added to output bfd.
include/
* bfdlink.h (struct bfd_link_info): Delete compress_debug.
ld/
* ld.h (ld_config_type): Add compress_debug.
* emultempl/elf.em: Replace references to link_info.compress_debug
with config.compress_debug.
* lexsup.c (elf_static_list_options): Likewise.
* ldmain.c (main): Likewise. Apply bfd_applicable_file_flags
to compress debug flags added to output bfd.
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PR 29654
* ld.h (struct ld_config_type): Add no_warnings field.
* ldlex.h (enum option_values): Add OPTION_NO_WARNINGS.
* lexsup.c (ld_options): Add --no-warnings.
(parse_args): Add support for -w and --no-warnings.
* ldmisc.c (vfinfo): Return early if the message is a warning and
-w has been enabled.
* ld.texi (options): Document new command line option.
* NEWS: Mention the new feature.
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This cancels a previous --no-undefined-version.
gold has had --undefined-version for a long time.
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bfd/ChangeLog:
* bfd-in.h (bfd_hash_set_default_size): Add COMPRESS_UNKNOWN
enum value.
(struct compressed_type_tuple): New.
* bfd-in2.h (bfd_hash_set_default_size): Regenerate.
(struct compressed_type_tuple): Likewise.
* libbfd.c (ARRAY_SIZE): New macro.
(bfd_get_compression_algorithm): New function.
(bfd_get_compression_algorithm_name): Likewise.
gas/ChangeLog:
* as.c: Do not special-case, use the new functions.
ld/ChangeLog:
* emultempl/elf.em: Do not special-case, use the new functions.
* lexsup.c (elf_static_list_options): Likewise.
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PR29397 PR29563: Add new configure option --with-zstd which defaults to
auto. If pkgconfig/libzstd.pc is found, define HAVE_ZSTD and support
zstd compressed debug sections for most tools.
* bfd: for addr2line, objdump --dwarf, gdb, etc
* gas: support --compress-debug-sections=zstd
* ld: support ELFCOMPRESS_ZSTD input and --compress-debug-sections=zstd
* objcopy: support ELFCOMPRESS_ZSTD input for
--decompress-debug-sections and --compress-debug-sections=zstd
* gdb: support ELFCOMPRESS_ZSTD input. The bfd change references zstd
symbols, so gdb has to link against -lzstd in this patch.
If zstd is not supported, ELFCOMPRESS_ZSTD input triggers an error. We
can avoid HAVE_ZSTD if binutils-gdb imports zstd/ like zlib/, but this
is too heavyweight, so don't do it for now.
```
% ld/ld-new a.o
ld/ld-new: a.o: section .debug_abbrev is compressed with zstd, but BFD is not built with zstd support
...
% ld/ld-new a.o --compress-debug-sections=zstd
ld/ld-new: --compress-debug-sections=zstd: ld is not built with zstd support
% binutils/objcopy --compress-debug-sections=zstd a.o b.o
binutils/objcopy: --compress-debug-sections=zstd: binutils is not built with zstd support
% binutils/objcopy b.o --decompress-debug-sections
binutils/objcopy: zstd.o: section .debug_abbrev is compressed with zstd, but BFD is not built with zstd support
...
```
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Generate a .note.package FDO package metadata ELF note, following
the spec: https://systemd.io/ELF_PACKAGE_METADATA/
If the jansson library is available at build time (and it is explicitly
enabled), link ld to it, and use it to validate that the input is
correct JSON, to avoid writing garbage to the file. The
configure option --enable-jansson has to be used to explicitly enable
it (error out when not found). This allows bootstrappers (or others who
are not interested) to seamlessly skip it without issues.
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Make ld and bfd values consistent by swapping values 0 and 2 in
link_info.warn_execstack. This has the benefit of making the value an
"extended" boolean, with 0 meaning no warning, 1 meaning warn, other
values a conditional warning.
Yes, this patch introduces fails on arm/aarch64. Not a problem with
this patch but an arm/aarch64 before_parse problem.
bfd/
* elflink.c (bfd_elf_size_dynamic_sections): Adjust
warn_execstack test.
include/
* bfdlink.h (warn_execstack): Swap 0 and 2 meaning.
ld/
* configure.ac (DEFAULT_LD_WARN_EXECSTACK): Use values of 0,
1, 2 consistent with link_info.warn_execstack.
* ld.texi: Typo fixes.
* lexsup.c (parse_args): Adjust setting of link_info.warn_execstack.
(elf_static_list_options): Adjust help message conditions.
* configure: Regenerate.
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segments. Add tests, options to disabke and configure switches to choose defaults.
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PR 29072
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The result of running etc/update-copyright.py --this-year, fixing all
the files whose mode is changed by the script, plus a build with
--enable-maintainer-mode --enable-cgen-maint=yes, then checking
out */po/*.pot which we don't update frequently.
The copy of cgen was with commit d1dd5fcc38ead reverted as that commit
breaks building of bfp opcodes files.
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When link_info.keep_memory is true, linker caches the relocation
information and symbol tables of input files in memory. When there
are many input files with many relocations, we may run out of memory.
Add --max-cache-size=SIZE to set the maximum cache size.
bfd/
PR ld/18028
* bfd.c (bfd): Add alloc_size.
* elf-bfd.h (_bfd_elf_link_info_read_relocs): New.
* elf32-i386.c (elf_i386_check_relocs): Use _bfd_link_keep_memory.
Update cache_size.
* elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.
* elflink.c (_bfd_elf_link_read_relocs): Renamed to ...
(_bfd_elf_link_info_read_relocs): This. Update cache_size.
(_bfd_elf_link_read_relocs): New.
(_bfd_elf_link_check_relocs): Call _bfd_elf_link_info_read_relocs
instead of _bfd_elf_link_read_relocs.
(elf_link_add_object_symbols): Likewise.
(elf_link_input_bfd): Likewise.
(init_reloc_cookie_rels): Likewise.
(init_reloc_cookie): Update cache_size. Call
_bfd_elf_link_info_read_relocs instead of
_bfd_elf_link_read_relocs.
(link_info_ok): New.
(elf_gc_smash_unused_vtentry_relocs): Updated. Call
_bfd_elf_link_info_read_relocs instead of
_bfd_elf_link_read_relocs.
(bfd_elf_gc_sections): Use link_info_ok. Pass &link_info_ok
to elf_gc_smash_unused_vtentry_relocs.
* libbfd-in.h (_bfd_link_keep_memory): New.
* linker.c (_bfd_link_keep_memory): New.
* opncls.c (bfd_alloc): Update alloc_size.
* bfd-in2.h: Regenerated.
* libbfd.h: Likewise.
include/
PR ld/18028
* bfdlink.h (bfd_link_info): Add cache_size and max_cache_size.
ld/
PR ld/18028
* NEWS: Mention --max-cache-size=SIZE.
* ld.texi: Document --max-cache-size=SIZE.
* ldlex.h (option_values): Add OPTION_MAX_CACHE_SIZE.
* ldmain.c: (main): Set link_info.max_cache_size to -1.
* lexsup.c (ld_options): Add --max-cache-size=SIZE.
(parse_args): Support OPTION_MAX_CACHE_SIZE.
* testsuite/ld-bootstrap/bootstrap.exp: Add test for
--max-cache-size=-1.
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gold has had this option for many years. Not having this option caused
some confusion to users. The help message clarifies the default state.
ld/
* ldlex.h (enum option_values): Add OPTION_NO_PIE.
* lexsup.c (struct ld_options): Add -no-pie.
(parse_args): Handle -no-pie.
* ld.texi: Document -no-pie.
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PR 27834
* ldlex.h (enum option_values): Add OPTION_NO_SYMBOLIC.
* lexsup.c (ld_options): Add -Bno-symbolic.
(parse_args): Handle -Bno-symbolic.
* ld.texi: Document -Bno-symbolic.
* NEWS: Mention -Bno-symbolic.
* testsuite/ld-elf/shared.exp: Add a test.
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* sysdep.h (POISON_BFD_BOOLEAN): Define.
* configure.ac (elf_list_options, elf_shlib_list_options=false),
(elf_plt_unwind_list_options=false): Replace FALSE with false,
and TRUE with true.
* emulparams/call_nop.sh, * emulparams/cet.sh,
* emulparams/dynamic_undefined_weak.sh,
* emulparams/elf32b4300.sh, * emulparams/elf32lm32.sh,
* emulparams/elf32lr5900.sh, * emulparams/elf32lr5900n32.sh,
* emulparams/elf32visium.sh, * emulparams/elf_x86_64.sh,
* emulparams/extern_protected_data.sh, * emulparams/plt_unwind.sh,
* emulparams/reloc_overflow.sh, * emulparams/static.sh,
* emulparams/x86-64-lam.sh, * emultempl/aarch64elf.em,
* emultempl/aix.em, * emultempl/alphaelf.em,
* emultempl/armcoff.em, * emultempl/armelf.em,
* emultempl/avrelf.em, * emultempl/beos.em, * emultempl/bfin.em,
* emultempl/cr16elf.em, * emultempl/crxelf.em,
* emultempl/cskyelf.em, * emultempl/elf.em, * emultempl/genelf.em,
* emultempl/hppaelf.em, * emultempl/linux.em,
* emultempl/m68hc1xelf.em, * emultempl/metagelf.em,
* emultempl/mipself.em, * emultempl/mmix-elfnmmo.em,
* emultempl/mmixelf.em, * emultempl/mmo.em, * emultempl/msp430.em,
* emultempl/nios2elf.em, * emultempl/pdp11.em, * emultempl/pe.em,
* emultempl/pep.em, * emultempl/ppc32elf.em,
* emultempl/ppc64elf.em, * emultempl/rxelf.em,
* emultempl/rxlinux.em, * emultempl/scoreelf.em,
* emultempl/solaris2.em, * emultempl/spuelf.em,
* emultempl/ticoff.em, * emultempl/v850elf.em, * emultempl/vms.em,
* emultempl/xtensaelf.em, * emultempl/z80.em, * ld.h,
* ldbuildid.c, * ldbuildid.h, * ldcref.c, * ldctor.c, * ldctor.h,
* ldelf.c, * ldelf.h, * ldelfgen.c, * ldelfgen.h, * ldemul.c,
* ldemul.h, * ldexp.c, * ldexp.h, * ldfile.c, * ldfile.h,
* ldgram.y, * ldlang.c, * ldlang.h, * ldmain.c, * ldmain.h,
* ldmisc.c, * ldmisc.h, * ldwrite.c, * lexsup.c, * mri.c,
* pe-dll.c, * pe-dll.h, * pep-dll.h, * plugin.c, * plugin.h,
* testplug.c, * testplug2.c, * testplug3.c, * testplug4.c: Replace
bfd_boolean with bool, FALSE with false, and TRUE with true.
* configure: Regenerate.
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There is really no need to write code like "foo != 0 ? TRUE : FALSE"
unless we had stupidly defined FALSE as something other than 0 or TRUE
as something other than 1. The simpler "foo != 0" does just as well.
Similarly "(condition == TRUE)" or "(condition == FALSE) can be
simplified to "(condition)" and "(!condition)" respectively.
I'll note that there is reason to use "integer_expression != 0" when
assigning a bfd_boolean rather than the simpler "integer_expression",
if you expect the variable to have 0 or 1 value. It's probably even a
good idea to not rely on implicit conversion if bfd_boolean were _Bool.
bfd/
* aoutx.h (aout_link_write_symbols): Don't cast boolean expression
to bfd_boolean.
* elf32-or1k.c (or1k_set_got_and_rela_sizes): Dont compare booleans
against FALSE.
* elf32-arc.c (name_for_global_symbol): Don't compare boolean to TRUE.
(is_reloc_PC_relative): Don't use "boolean_condition ? TRUE : FALSE".
(is_reloc_SDA_relative, is_reloc_for_GOT): Likewise.
(is_reloc_for_PLT, is_reloc_for_TLS): Likewise.
* elf32-arm.c (stm32l4xx_need_create_replacing_stub): Likewise.
* elf32-nds32.c (insert_nds32_elf_blank): Likewise.
* elf32-rx.c (rx_set_section_contents): Likewise.
* elfnn-aarch64.c (elfNN_aarch64_final_link_relocate): Likewise.
* elfxx-mips.c (_bfd_mips_elf_ignore_undef_symbol): Likewise.
* mach-o.c (bfd_mach_o_read_command): Likewise.
* targets.c (bfd_get_target_info): Likewise.
binutils/
* dlltool.c (main): Don't use "boolean_condition ? TRUE : FALSE".
* dwarf.c (read_and_display_attr_value): Likewise.
(display_debug_str_offsets): Likewise.
* objdump.c (dump_bfd): Likewise.
* readelf.c (dump_section_as_strings): Likewise.
(dump_section_as_bytes): Likewise.
gas/
* atof-generic.c (FALSE, TRUE): Don't define.
* config/obj-elf.h (FALSE, TRUE): Don't define.
* config/obj-som.h (FALSE, TRUE): Don't define.
* config/tc-hppa.h (FALSE, TRUE): Don't define.
* config/tc-pdp11.c (FALSE, TRUE): Don't define.
* config/tc-iq2000.h (obj_fix_adjustable): Delete.
* config/tc-m32r.h (TC_FIX_ADJUSTABLE): Delete.
* config/tc-mt.h (obj_fix_adjustable): Delete.
* config/tc-nds32.h (TC_FIX_ADJUSTABLE): Delete.
* config/tc-arc.c (parse_opcode_flags): Simplify boolean expression.
(relaxable_flag, relaxable_operand, assemble_insn): Likewise.
(tokenize_extregister): Likewise.
* config/tc-csky.c (parse_opcode, get_operand_value): Likewise.
(parse_operands_op, parse_operands, md_assemble): Likewise.
* config/tc-d10v.c (build_insn): Likewise.
* config/tc-score.c (s3_gen_insn_frag): Likewise.
* config/tc-score7.c (s7_gen_insn_frag, s7_relax_frag): Likewise.
* config/tc-tic6x.c (tic6x_update_features, md_assemble): Likewise.
* config/tc-z80.c (emit_byte): Likewise.
include/
* opcode/aarch64.h (alias_opcode_p): Simplify boolean expression.
(opcode_has_alias, pseudo_opcode_p, optional_operand_p): Likewise.
(opcode_has_special_coder): Likewise.
ld/
* emultempl/aix.em (gld${EMULATION_NAME}_before_allocation): Simplify
boolean expression.
* lexsup.c (parse_args): Likewise.
* pe-dll.c (pe_dll_id_target): Likewise.
opcodes/
* aarch64-opc.c (vector_qualifier_p): Simplify boolean expression.
(fp_qualifier_p, get_data_pattern): Likewise.
(aarch64_get_operand_modifier_from_value): Likewise.
(aarch64_extend_operator_p, aarch64_shift_operator_p): Likewise.
(operand_variant_qualifier_p): Likewise.
(qualifier_value_in_range_constraint_p): Likewise.
(aarch64_get_qualifier_esize): Likewise.
(aarch64_get_qualifier_nelem): Likewise.
(aarch64_get_qualifier_standard_value): Likewise.
(get_lower_bound, get_upper_bound): Likewise.
(aarch64_find_best_match, match_operands_qualifier): Likewise.
(aarch64_print_operand): Likewise.
* aarch64-opc.h (operand_has_inserter, operand_has_extractor): Likewise.
(operand_need_sign_extension, operand_need_shift_by_two): Likewise.
(operand_need_shift_by_four, operand_maybe_stack_pointer): Likewise.
* arm-dis.c (print_insn_mve, print_insn_thumb32): Likewise.
* tic6x-dis.c (tic6x_check_fetch_packet_header): Likewise.
(print_insn_tic6x): Likewise.
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bfd/ChangeLog:
* bfd-in.h (startswith): Add startswith function.
(CONST_STRNEQ): Remove.
* bfd-in2.h (startswith): Regenerate with make headers.
* archive.c (bfd_slurp_armap): Replace usage of CONST_STRNEQ with startswith.
(_bfd_slurp_extended_name_table): Likewise.
* archive64.c (_bfd_archive_64_bit_slurp_armap): Likewise.
* bfd.c (bfd_get_sign_extend_vma): Likewise.
(bfd_convert_section_size): Likewise.
(bfd_convert_section_contents): Likewise.
* coff-stgo32.c (go32exe_create_stub): Likewise.
(go32exe_check_format): Likewise.
* coffcode.h (styp_to_sec_flags): Likewise.
(GNU_DEBUGALTLINK): Likewise.
* coffgen.c (_bfd_coff_section_already_linked): Likewise.
(coff_gc_sweep): Likewise.
(bfd_coff_gc_sections): Likewise.
* cofflink.c (coff_link_add_symbols): Likewise.
(process_embedded_commands): Likewise.
* compress.c (bfd_is_section_compressed_with_header): Likewise.
(bfd_init_section_decompress_status): Likewise.
* dwarf2.c (find_debug_info): Likewise.
(place_sections): Likewise.
* ecoff.c (_bfd_ecoff_slurp_armap): Likewise.
* elf-m10300.c (_bfd_mn10300_elf_size_dynamic_sections): Likewise.
* elf.c (_bfd_elf_make_section_from_shdr): Likewise.
(assign_section_numbers): Likewise.
(elfcore_grok_win32pstatus): Likewise.
* elf32-arm.c (cmse_scan): Likewise.
(elf32_arm_gc_mark_extra_sections): Likewise.
(elf32_arm_size_dynamic_sections): Likewise.
(is_arm_elf_unwind_section_name): Likewise.
* elf32-bfin.c (bfin_size_dynamic_sections): Likewise.
* elf32-cr16.c (_bfd_cr16_elf_size_dynamic_sections): Likewise.
* elf32-cris.c (elf_cris_size_dynamic_sections): Likewise.
* elf32-csky.c (csky_elf_size_dynamic_sections): Likewise.
* elf32-hppa.c (elf32_hppa_size_dynamic_sections): Likewise.
* elf32-iq2000.c (iq2000_elf_check_relocs): Likewise.
* elf32-lm32.c (lm32_elf_size_dynamic_sections): Likewise.
* elf32-m32r.c (m32r_elf_size_dynamic_sections): Likewise.
* elf32-m68k.c (elf_m68k_size_dynamic_sections): Likewise.
* elf32-metag.c (elf_metag_size_dynamic_sections): Likewise.
* elf32-msp430.c (msp430_elf_relax_delete_bytes): Likewise.
* elf32-nios2.c (nios2_elf32_size_dynamic_sections): Likewise.
* elf32-or1k.c (or1k_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_size_dynamic_sections): Likewise.
* elf32-s390.c (elf_s390_size_dynamic_sections): Likewise.
* elf32-score.c (s3_bfd_score_elf_size_dynamic_sections): Likewise.
* elf32-score7.c (s7_bfd_score_elf_size_dynamic_sections): Likewise.
* elf32-sh.c (sh_elf_size_dynamic_sections): Likewise.
* elf32-tic6x.c (is_tic6x_elf_unwind_section_name): Likewise.
(elf32_tic6x_size_dynamic_sections): Likewise.
* elf32-vax.c (elf_vax_size_dynamic_sections): Likewise.
* elf32-xtensa.c (elf_xtensa_size_dynamic_sections): Likewise.
(xtensa_is_insntable_section): Likewise.
(xtensa_is_littable_section): Likewise.
(xtensa_is_proptable_section): Likewise.
(xtensa_property_section_name): Likewise.
(xtensa_callback_required_dependence): Likewise.
* elf64-alpha.c (elf64_alpha_size_dynamic_sections): Likewise.
* elf64-hppa.c (elf64_hppa_size_dynamic_sections): Likewise.
* elf64-ia64-vms.c (is_unwind_section_name): Likewise.
(get_reloc_section): Likewise.
(elf64_ia64_size_dynamic_sections): Likewise.
(elf64_ia64_object_p): Likewise.
* elf64-mmix.c (mmix_elf_add_symbol_hook): Likewise.
* elf64-ppc.c (ppc64_elf_size_dynamic_sections): Likewise.
* elf64-s390.c (elf_s390_size_dynamic_sections): Likewise.
* elflink.c (elf_link_add_object_symbols): Likewise.
(_bfd_elf_gc_mark_extra_sections): Likewise.
(bfd_elf_parse_eh_frame_entries): Likewise.
(_bfd_elf_section_already_linked): Likewise.
* elfnn-aarch64.c (elfNN_aarch64_size_dynamic_sections): Likewise.
* elfnn-ia64.c (is_unwind_section_name): Likewise.
(elfNN_ia64_size_dynamic_sections): Likewise.
(elfNN_ia64_object_p): Likewise.
* elfxx-mips.c (FN_STUB_P): Likewise.
(CALL_STUB_P): Likewise.
(CALL_FP_STUB_P): Likewise.
(_bfd_mips_elf_section_from_shdr): Likewise.
(_bfd_mips_elf_fake_sections): Likewise.
(_bfd_mips_elf_size_dynamic_sections): Likewise.
(_bfd_mips_final_write_processing): Likewise.
(_bfd_mips_elf_final_link): Likewise.
* elfxx-sparc.c (_bfd_sparc_elf_size_dynamic_sections): Likewise.
* elfxx-x86.c (elf_i386_is_reloc_section): Likewise.
(elf_x86_64_is_reloc_section): Likewise.
* hpux-core.c (thread_section_p): Likewise.
* libcoff.h (bfd_pei_p): Likewise.
* linker.c (REAL): Likewise.
(unwrap_hash_lookup): Likewise.
(_bfd_generic_link_add_one_symbol): Likewise.
* mmo.c (mmo_internal_write_section): Likewise.
* osf-core.c (osf_core_core_file_p): Likewise.
* pef.c (bfd_pef_print_symbol): Likewise.
* pei-x86_64.c (pex64_print_all_pdata_sections): Likewise.
* som.c (som_slurp_symbol_table): Likewise.
(som_slurp_armap): Likewise.
* wasm-module.c (wasm_compute_custom_section_file_position): Likewise.
binutils/ChangeLog:
* dlltool.c (scan_drectve_symbols): Replace usage of CONST_STRNEQ with startswith.
* emul_aix.c (ar_emul_aix_parse_arg): Likewise.
* objcopy.c (is_mergeable_note_section): Likewise.
* objdump.c (dump_dwarf_section): Likewise.
* prdbg.c (pr_method_type): Likewise.
(pr_class_baseclass): Likewise.
(tg_class_baseclass): Likewise.
* readelf.c (process_lto_symbol_tables): Likewise.
* stabs.c (ULLHIGH): Likewise.
(parse_stab_argtypes): Likewise.
(stab_demangle_function_name): Likewise.
gas/ChangeLog:
* config/tc-i386.c (md_parse_option): Replace usage of CONST_STRNEQ with startswith.
(x86_64_section_word): Likewise.
* config/tc-sparc.c (md_parse_option): Likewise.
gdb/ChangeLog:
* arm-tdep.c (show_disassembly_style_sfunc): Replace usage of CONST_STRNEQ with startswith.
(_initialize_arm_tdep): Likewise.
ld/ChangeLog:
* emultempl/aix.em: Replace usage of CONST_STRNEQ with startswith.
* emultempl/beos.em: Likewise.
* emultempl/elf.em: Likewise.
* emultempl/pe.em: Likewise.
* emultempl/pep.em: Likewise.
* emultempl/xtensaelf.em: Likewise.
* ldctor.c (ctor_prio): Likewise.
* ldelf.c (ldelf_try_needed): Likewise.
(ldelf_parse_ld_so_conf): Likewise.
(ldelf_after_open): Likewise.
(output_rel_find): Likewise.
(ldelf_place_orphan): Likewise.
* ldfile.c (ldfile_add_library_path): Likewise.
* ldlang.c (lang_add_input_file): Likewise.
* ldmain.c (get_sysroot): Likewise.
(get_emulation): Likewise.
(add_archive_element): Likewise.
* ldwrite.c (unsplittable_name): Likewise.
(clone_section): Likewise.
* lexsup.c (parse_args): Likewise.
* pe-dll.c (is_import): Likewise.
(pe_implied_import_dll): Likewise.
opcodes/ChangeLog:
* aarch64-dis.c (parse_aarch64_dis_option): Replace usage of CONST_STRNEQ with startswith.
* arc-dis.c (parse_option): Likewise.
* arm-dis.c (parse_arm_disassembler_options): Likewise.
* cris-dis.c (print_with_operands): Likewise.
* h8300-dis.c (bfd_h8_disassemble): Likewise.
* i386-dis.c (print_insn): Likewise.
* ia64-gen.c (fetch_insn_class): Likewise.
(parse_resource_users): Likewise.
(in_iclass): Likewise.
(lookup_specifier): Likewise.
(insert_opcode_dependencies): Likewise.
* mips-dis.c (parse_mips_ase_option): Likewise.
(parse_mips_dis_option): Likewise.
* s390-dis.c (disassemble_init_s390): Likewise.
* wasm32-dis.c (parse_wasm32_disassembler_options): Likewise.
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When --gc-sections is in effect, a reference from a retained section
to __start_SECNAME or __stop_SECNAME causes all input sections named
SECNAME to also be retained, if SECNAME is representable as a C
identifier and either __start_SECNAME or __stop_SECNAME is synthesized
by the linker. Add an option to disable that feature, effectively
ignoring any relocation that references a synthesized linker defined
__start_ or __stop_ symbol.
PR 27451
include/
* bfdlink.h (struct bfd_link_info): Add start_stop_gc.
bfd/
* elflink.c (_bfd_elf_gc_mark_rsec): Ignore synthesized linker
defined start/stop symbols when start_stop_gc.
(bfd_elf_gc_mark_dynamic_ref_symbol): Likewise.
(bfd_elf_define_start_stop): Don't modify ldscript_def syms.
* linker.c (bfd_generic_define_start_stop): Likewise.
ld/
* emultempl/elf.em: Handle -z start-stop-gc and -z nostart-stop-gc.
* lexsup.c (elf_static_list_options): Display help for them. Move
help for -z stack-size to here from elf_shlib_list_options. Add
help for -z start-stop-visibility and -z undefs.
* ld.texi: Document -z start-stop-gc and -z nostart-stop-gc.
* NEWS: Mention -z start-stop-gc.
* testsuite/ld-gc/start2.s,
* testsuite/ld-gc/start2.d: New test.
* testsuite/ld-gc/gc.exp: Run it.
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* ld.texi (Options): Document -z unique and -z nounique.
* lexsup.c (elf_shlib_list_options): Likewise.
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PR 26836
* lexsup.c (parse_args): Free really_longopts, longopts and
shortopts.
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PR 27050
* lexsup.c (parse_args): Ensure that the longind local variable is
set.
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output file path.
* lexsup.c (parse_args): Add more checks of the mapfile. If it is
a directory use the basename of the output file as the file
component. If the % character is present, replace it with the
full output filepath.
* testsuite/ld-scripts/map-address.exp: Add test of %
functionality.
* ld.texi: Document the new behaviour.
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script <NAME> if an undefined symbol or unfound library error is encountered.
PR 26626
* ldmain.c (undefined_symbol): If an error handlign script is
available, call it.
* ldfile.c (error_handling_script): Declare.
(ldfile_open_file): If a library cannot be found and an error
handling script is available, call it.
* ldmain.h (error_handling_script): Prototype.
* ldlex.h (OPTION_ERROR_HANDLING_SCRIPT): Define.
* lexsup.c (ld_options): Add --error-handling-script.
(parse_args): Add support for --errror-handling-script.
* ld.texi: Document the new feature.
* configure.ac: Add --error-handling-script option to disable
support for the new feature.
* NEWS: Mention the new feature.
* config.in: Regenerate.
* configure: Regenerate.
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* lexsup.c (parse_args): Generate an error or warning message when
multiple short options are used together.
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The symbol string table in the .symtab section is optional and cosmetic.
The contents of the .symtab section have no impact on run-time execution.
The symbol names in the symbol string table help distinguish addresses at
different locations. Add a linker option, -z unique-symbol, to avoid
duplicated local symbol names in the symbol string table.
This feature was well received by the livepatch maintainers. It not only
solves the duplicated local symbol name problem, but also would allow
livepatch to more precisely locate duplicate symbols in general for
patching.
bfd/
PR ld/26391
* elflink.c (elf_final_link_info): Add local_hash_table.
(local_hash_entry): New.
(local_hash_newfunc): Likewise.
(elf_link_output_symstrtab): Append ".COUNT" to duplicated local
symbols.
(bfd_elf_final_link): Initialize and free local_hash_table for
"-z unique-symbol".
include/
PR ld/26391
* bfdlink.h (bfd_link_info): Add unique_symbol.
ld/
PR ld/26391
* NEWS: Mention "-z unique-symbol".
* emultempl/elf.em (gld${EMULATION_NAME}_handle_option): Handle
"-z unique-symbol" and "-z nounique-symbol".
* ld.texi: Document "-z unique-symbol" and "-z nounique-symbol".
* lexsup.c (elf_static_list_options): Add "-z unique-symbol" and
"-z nounique-symbol".
* testsuite/ld-elf/elf.exp: Add PR ld/26391 tests.
* testsuite/ld-elf/pr26391.nd: New file.
* testsuite/ld-elf/pr26391.out: Likewise.
* testsuite/ld-elf/pr26391a.c: Likewise.
* testsuite/ld-elf/pr26391b.c: Likewise.
* testsuite/ld-elf/pr26391c.c: Likewise.
* testsuite/ld-elf/pr26391d.c: Likewise.
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As far as I can tell, the following comment is false nowadays.
/* Calls to m-alloc get turned by sed into xm-alloc. */
Remove it, and call xmalloc.
* ldlex.l (yy_create_string_buffer): Use xmalloc rather than malloc.
* lexsup.c (parse_args): Likewise.
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libctf recently changed to make it possible to not emit the CTF
variables section. Make this the default for ld: the variables section
is a simple name -> type mapping, and the names can be quite voluminous.
Nothing in the variables section appears in the symbol table, by
definition, so GDB cannot make use of them: special-purpose projects
that implement their own analogues of symbol table lookup can do so, but
they'll need to tell the linker to emit the variables section after all.
The new --ctf-variables option does this.
The --ctf-share-types option (valid values "share-duplicated" and
"share-unconflicted") allow the caller to specify the CTF link mode.
Most users will want share-duplicated, since it allows for more
convenient debugging: but very large projects composed of many decoupled
components may want to use share-unconflicted mode, which places types
that appear in only one TU into per-TU dicts. (They may also want to
relink the CTF using the ctf_link API and cu-mapping, to make their
"components" larger than a single TU. Right now the linker does not
expose the CU-mapping machinery. Perhaps it should in future to make
this use case easier.)
For now, giving the linker the ability to emit share-duplicated CTF lets
us add testcases for that mode to the testsuite.
ld/
* ldlex.h (option_values) <OPTION_CTF_VARIABLES,
OPTION_NO_CTF_VARIABLES, OPTION_CTF_SHARE_TYPES>: New.
* ld.h (ld_config_type) <ctf_variables, ctf_share_duplicated>:
New fields.
* ldlang.c (lang_merge_ctf): Use them.
* lexsup.c (ld_options): Add ctf-variables, no-ctf-variables,
ctf-share-types.
(parse_args) <OPTION_CTF_VARIABLES, OPTION_NO_CTF_VARIABLES,
OPTION_CTF_SHARE_TYPES>: New cases.
* ld.texi: Document new options.
* NEWS: Likewise.
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PR 26204
gas * config/tc-arm.c: Fix spelling mistake.
* config/tc-riscv.c: Likewise.
* config/tc-z80.c: Likewise.
* po/gas.pot: Regenerate.
ld * lexsup.c: Fix spelling mistake.
* po/ld.pot: Regenerate.
opcodes * arc-dis.c: Fix spelling mistake.
* po/opcodes.pot: Regenerate.
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Change ld --help output to
-d, -dc, -dp Force common symbols to be defined
--dependency-file FILE Write dependency file
instead of
-d, -dc Force common symbols to be defined
--dependency-file FILE, -dp Write dependency file
PR ld/26165
* lexsup.c (ld_options): Correct --dependency-file order.
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It's best if help message output does not contain tabs, since we don't
know tab stop settings or even if tabs are handled by the output
device. This reverts some 2020-06-23 changes and fixes the csky help
message.
* lexsup.c (elf_shlib_list_options): Properly format help message.
(elf_plt_unwind_list_options): Likewise.
* emultempl/cskyelf.em (PARSE_AND_LIST_OPTIONS): Likewise.
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gold/
* options.h (class General_options): Add --dependency-file option.
* fileread.cc (File_read::files_read): New static variable.
(File_read::open): Add the file to the files_read list.
(File_read::record_file_read): New static member function.
(File_read::write_dependency_file): New static member function.
* fileread.h (class File_read): Declare them.
* layout.cc (Layout::read_layout_from_file): Call record_file_read.
(Close_task_runner::run): Call write_dependency_file if
--dependency-file was passed.
ld/
* NEWS: Note --dependency-file.
* ld.texi (Options): Document --dependency-file.
* ldlex.h (enum option_values): Add OPTION_DEPENDENCY_FILE.
* ld.h (ld_config_type): New member dependency_file.
* lexsup.c (ld_options, parse_args): Parse --dependency-file.
* ldmain.c (struct dependency_file): New type.
(dependency_files, dependency_files_tail): New static variables.
(track_dependency_files): New function.
(write_dependency_file): New function.
(main): Call it when --dependency-file was passed.
* ldfile.c (ldfile_try_open_bfd): Call track_dependency_files.
(ldfile_open_command_file_1): Likewise.
* ldelf.c (ldelf_try_needed): Likewise.
* pe-dll.c (pe_implied_import_dll): Likewise.
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Instead, use BFD_SUPPORTS_PLUGINS.
* ldfile.c: Replace uses of ENABLE_PLUGINS with BFD_SUPPORTS_PLUGINS.
* ldlang.c: Likewise.
* ldlang.h: Likewise.
* ldlex.h: Likewise.
* ldmain.c: Likewise.
* lexsup.c: Likewise.
* plugin.c: Wrap body of file in #if BFD_SUPPORTS_PLUGINS.
* testplug.c: Likewise.
* testplug2.c: Likewise.
* testplug3.c: Likewise.
* testplug4.c: Likewise.
* configure.ac (ENABLE_PLUGINS): Don't define AM_CONTITIONAL.
* Makefile.am: Remove ENABLE_PLUGINS conditionals.
(PLUGIN_CFLAGS): Don't define.
(PLUGIN_C, PLUGIN_H, PLUGIN_OBJECT): Likewise. Substitute all
uses with plugin file name.
* configure: Regenerate.
* Makefile.in: Regenerate.
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This patch makes ld accept and ignore -plugin options when configured
with --disable-plugins. The idea is to allow using a linker built
without plugin support with a gcc built with plugin support. Quite
obviously such a combination won't work if using LTO, but gcc has a
habit of passing a bunch of -plugin and -plugin-opt arguments to ld
even when not generating or linking LTO objects.
Why do I want to do this? Well, it lets me and other binutils
developers answer the question as to whether plugin support breaks
binutils in some areas. Which it does for some targets.
* lexsup.c (ld_options): Accept -plugin and -plugin-opt when
!ENABLE_PLUGINS.
* testsuite/lib/ld-lib.exp (check_plugin_api_available): Adjust.
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--export-dynamic-symbol-list is like a dynamic list, but without
the symbolic property for unspecified symbols.
When creating an executable, --export-dynamic-symbol-list is treated
like --dynamic-list.
When creating a shared library, it is treated like --dynamic-list if
-Bsymbolic or --dynamic-list are used, otherwise, it is ignored, so
that references to matched symbols will not be bound to the definitions
within the shared library.
PR ld/25910
* NEWS: Mention --export-dynamic-symbol[-list].
* ld.texi: Document --export-dynamic-symbol[-list].
* ldgram.y: Pass current_dynamic_list_p to
lang_append_dynamic_list.
* ldlang.c (current_dynamic_list_p): New.
(ang_append_dynamic_list): Updated to take a pointer to
struct bfd_elf_dynamic_list * argument instead of using
link_info.dynamic_list.
(lang_append_dynamic_list_cpp_typeinfo): Pass
&link_info.dynamic_list to ang_append_dynamic_list.
(lang_append_dynamic_list_cpp_new): Likewise.
* ldlang.h (current_dynamic_list_p): New.
(lang_append_dynamic_list): Add a pointer to
struct bfd_elf_dynamic_list * argument.
* ldlex.h (option_values): Add OPTION_EXPORT_DYNAMIC_SYMBOL and
OPTION_EXPORT_DYNAMIC_SYMBOL_LIST.
* lexsup.c (ld_options): Add entries for
OPTION_EXPORT_DYNAMIC_SYMBOL and
OPTION_EXPORT_DYNAMIC_SYMBOL_LIST.
(parse_args): Handle --export-dynamic-symbol and
--export-dynamic-symbol-list.
* testsuite/ld-dynamic/export-dynamic-symbol-1.d: New.
* testsuite/ld-dynamic/export-dynamic-symbol-2.d: New.
* testsuite/ld-dynamic/export-dynamic-symbol-glob.d: New.
* testsuite/ld-dynamic/export-dynamic-symbol-list-1.d: New.
* testsuite/ld-dynamic/export-dynamic-symbol-list-2.d: New.
* testsuite/ld-dynamic/export-dynamic-symbol-list-glob.d: New.
* testsuite/ld-dynamic/export-dynamic-symbol.exp: New.
* testsuite/ld-dynamic/export-dynamic-symbol.s: New.
* testsuite/ld-dynamic/foo-bar.list: New.
* testsuite/ld-dynamic/foo.list: New.
* testsuite/ld-dynamic/foo.s: New.
* testsuite/ld-dynamic/fstar.list: New.
* testsuite/ld-elf/dlempty.list: New.
* testsuite/ld-elf/shared.exp: Add tests for
--export-dynamic-symbol and --export-dynamic-symbol-list.
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Add a configure option, --enable-textrel-check=[no|yes|warning|error],
to decide what ELF linker should do by default with DT_TEXTREL in an
executable or shared library.
PR ld/20824
* NEWS: Mention --enable-textrel-check=[no|yes|warning|error].
* configure.ac: Add --enable-textrel-check=[no|yes|warning|error].
(DEFAULT_LD_TEXTREL_CHECK): New AC_DEFINE_UNQUOTED.
(DEFAULT_LD_TEXTREL_CHECK_WARNING): Likewise.
* ldmain.c (main): Initialize link_info.textrel_check to
DEFAULT_LD_TEXTREL_CHECK.
* lexsup.c (ld_options): Check DEFAULT_LD_TEXTREL_CHECK_WARNING.
* config.in: Regenerated.
* configure: Likewise.
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* lexsup.c (parse_args): Generate an error if a name is not
provided to the -Map option.
(ld_options): Mention that the -Map option supports a directory
name as an argument.
* NEWS: Remove mention of support for an empty string as an
argument to -Map.
* ld.texi: Likewise.
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* lexsup.c (parse_args): If the map filename is defined but empty
create a name based upon the output file name. If the name is
defined but refers to a directory create a file inside the
directory based on the output file name.
* ld.texi: Document the new feature.
* testsuite/ld-script/map-address.exp: Add test of new feature.
* NEWS: Mention the new feature.
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--warn-shared-textrel and -z text apply to both shared object and PIE.
Add --warn-textrel and obsolete --warn-shared-textrel. Consolidate
--warn-textrel and -z text/notext/textoff implementation.
bfd/
PR ld/22909
* elflink.c (bfd_elf_final_link): Use bfd_link_textrel_check.
Check bfd_link_dll when issue a DT_TEXTREL warning.
* elfxx-x86.c (maybe_set_textrel): Likewise.
(_bfd_x86_elf_size_dynamic_sections): Likewise.
include/
PR ld/22909
* bfdlink.h (textrel_check_method): New enum.
(bfd_link_textrel_check): New.
(bfd_link_info): Replace warn_shared_textrel and error_textrel
with textrel_check.
ld/
PR ld/22909
* NEWS: Mention --warn-textrel.
* ld.texi: Update -z text/notext/textoff. Add --warn-textrel.
Remove --warn-shared-textrel.
* ldlex.h (option_values): Rename OPTION_WARN_SHARED_TEXTREL to
OPTION_WARN_TEXTREL.
* lexsup.c (ld_options): Add --warn-textrel. Obsolete
--warn-shared-textrel.
(parse_args): Updated.
(elf_shlib_list_options): Check link_info.textrel_check.
* emultempl/elf.em: Updated.
* testsuite/ld-elf/pr19539.d: Replace -z notext with
--warn-textrel. Expect a warning.
* testsuite/ld-i386/warn1.d: Update expected warning.
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--dynamic-list* should work both before and after -Bsymbolic and
-Bsymbolic-functions.
PR ld/26018
* lexsup.c (parse_args): Simplify.
* testsuite/ld-elf/dl4e.out: New.
* testsuite/ld-elf/shared.exp: Updated for PR ld/26018 tests.
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* deffilep.y: Replace "if (x) free (x)" with "free (x)" thoughout.
* emultempl/elf.em: Likewise.
* emultempl/msp430.em: Likewise.
* emultempl/pe.em: Likewise.
* emultempl/pep.em: Likewise.
* emultempl/ppc64elf.em: Likewise.
* emultempl/xtensaelf.em: Likewise.
* ldelf.c: Likewise.
* ldfile.c: Likewise.
* ldmain.c: Likewise.
* ldmisc.c: Likewise.
* lexsup.c: Likewise.
* pe-dll.c: Likewise.
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option, if relevent.
PR 25979
* lexsup.c (elf_shlib_list_options): Include the default value for
the hash style in the output text.
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unresolved symbol references. (PR 24613)
PR binutils/24613
include * bfdlink.h (enum report_method): Delete RM_GENERATE_WARNING and
RM_GENERATE_ERROR. Add RM_DIAGNOSE.
(struct bfd_link_info): Add warn_unresolved_syms.
ld * lexsup.c (parse_args): Change RM_GENERATE_WARNING and
RM_GENERATE_ERROR to RM_DIAGNOSE.
* emultempl/aix.em (ld_${EMULATION_NAME}_emulation): Change
RM_GENERATE_ERROR to RM_DIAGNOSE.
* emultempl/elf.em (ld_${EMULATION_NAME}_emulation): Likewise.
bfd * coff-rs6000.c (xcoff_ppc_relocate_section): Change RM_GENERATE_ERROR
to RM_DIAGNOSE plus a check of warn_unresolved_syms.
* coff64-rs6000.c (xcoff_ppc_relocate_section): Likewise.
* elf-bfd.h (_bfd_elf_large_com_section): Likewise.
* elf32-m32r.c (m32r_elf_relocate_section): Likewise.
* elf32-score.c (s3_bfd_score_elf_relocate_section): Likewise.
* elf32-score7.c (s7_bfd_score_elf_relocate_section): Likewise.
* elf32-sh.c (sh_elf_relocate_section): Likewise.
* elf32-spu.c (spu_elf_relocate_section): Likewise.
* elf64-hppa.c (elf64_hppa_relocate_section): Likewise.
* elflink.c (elf_link_output_extsym): Likewise.
* elfxx-mips.c (mips_elf_calculate_relocation): Likewise.
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PR ld/25677
include * aout/aout64.h (N_DATADDR): Add IMAGIC case.
bfd * pdp11.c: Add implementation of --imagic option.
(adjust_o_magic): Fix objcopy --extract-symbol test.
* libaout.h (enum aout_magic): Add i_magic.
ld * emulparams/pdp11.sh (SCRIPT_NAME): Change to pdp11.
(EXTRA_EM_FILE): New, add emulation file pdp11.
* scripttempl/pdp11.sc: New, derived from aout.sc without
irrelevant input sections.
* emultempl/pdp11.em (_add_options, _handle_option)
(_list_options): New. Add options -z, --imagic for pdp11-aout.
(_before_parse): Make --omagic be default instead of --nmagic.
(_get_script): Modify special-case linker script for --imagic.
* lexsup.c (parse_args): Explictly set config.text_read_only for -n.
* ld.texi (Options): Add documentation of PDP11-specific options.
(Options): Fix unrelated typo to --no-compact-branches.
* gen-doc.texi: @set PDP11.
* testsuite/ld-pdp11/pdp11.exp: New, start pdp11 testing.
* testsuite/ld-pdp11/sections.s: New, source for options tests.
* testsuite/ld-pdp11/imagic.d: New, test --imagic format.
* testsuite/ld-pdp11/imagicz.d: New, test -z (imagic) format.
* testsuite/ld-pdp11/nmagic.d: New, test --nmagic format.
* testsuite/ld-pdp11/omagic.d: New, test --omagic format.
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2020-01-06 Christophe Lyon <christophe.lyon@linaro.org>
bfd/
* bfd-in2.h: Regenerate.
* section.c (asection): Add already_assigned field.
(BFD_FAKE_SECTION): Add default initializer for it.
* ecoff.c (bfd_debug_section): Initialize already_assigned field.
* elf32-arm.c (arm_build_one_stub): Add support for
non_contiguous_regions.
* elf32-csky.c (csky_build_one_stub): Likewise.
* elf32-hppa.c (hppa_build_one_stub): Likewise.
* elf32-m68hc11.c (m68hc11_elf_build_one_stub): Likewise.
* elf32-m68hc12.c (m68hc12_elf_build_one_stub): Likewise.
* elf32-metag.c (metag_build_one_stub): Likewise.
* elf32-nios2.c (nios2_build_one_stub): Likewise.
* elf64-ppc.c (ppc_build_one_stub): Likewise.
(ppc_size_one_stub): Likewise.
* elfnn-aarch64.c (aarch64_build_one_stub): Likewise.
* elflink.c (elf_link_input_bfd): Likewise.
include/
* bfdlink.h (bfd_link_info): Add non_contiguous_regions and
non_contiguous_regions_warnings fields.
ld/
* ldlang.c (lang_add_section): Add support for
non_contiguous_regions.
(size_input_section): Likewise.
(lang_size_sections_1): Likewise.
(process_insert_statements): Likewise.
* ldlex.h (option_values): Add OPTION_NON_CONTIGUOUS_REGIONS and
OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS.
* lexsup.c (ld_options): Add entries for
--enable-non-contiguous-regions and
--enable-non-contiguous-regions-warnings.
(parse_args): Handle it.
* NEWS: Add --enable-non-contiguous-regions and
--enable-non-contiguous-regions-warnings.
* ld.texi: Add --enable-non-contiguous-regions and
--enable-non-contiguous-regions-warnings documentation.
* emultempl/armelf.em (elf32_arm_add_stub_section): Add
SEC_LINKER_CREATED flag.
* emultempl/xtensaelf.em (ld_build_required_section_dependence):
Emit an error when --enable-non-contiguous-regions is used.
* testsuite/ld-elf/non-contiguous.d: New.
* testsuite/ld-elf/non-contiguous.ld: New.
* testsuite/ld-elf/non-contiguous.s: New.
* testsuite/ld-arm/arm-elf.exp: Run the new tests.
* testsuite/ld-arm/arm-elf/non-contiguous-arm.s: New.
* testsuite/ld-arm/arm-elf/non-contiguous-arm.d: New.
* testsuite/ld-arm/arm-elf/non-contiguous-arm.ld: New.
* testsuite/ld-arm/arm-elf/non-contiguous-arm2.d: New.
* testsuite/ld-arm/arm-elf/non-contiguous-arm3.ld: New.
* testsuite/ld-arm/arm-elf/non-contiguous-arm3.d: New.
* testsuite/ld-arm/arm-elf/non-contiguous-arm3.ld: New.
* testsuite/ld-arm/arm-elf/non-contiguous-arm4.d: New.
* testsuite/ld-arm/arm-elf/non-contiguous-arm4.ld: New.
* testsuite/ld-arm/arm-elf/non-contiguous-arm5.d: New.
* testsuite/ld-arm/arm-elf/non-contiguous-arm5.ld: New.
* testsuite/ld-arm/arm-elf/non-contiguous-arm6.d: New.
* testsuite/ld-arm/arm-elf/non-contiguous-arm6.ld: New.
* testsuite/ld-powerpc/powerpc.exp: Run new tests.
* testsuite/ld-powerpc/non-contiguous-powerpc.d: New.
* testsuite/ld-powerpc/non-contiguous-powerpc.ld: New.
* testsuite/ld-powerpc/non-contiguous-powerpc.sd: New.
* testsuite/ld-powerpc/non-contiguous-powerpc64.d: New.
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This is quite complicated because the CTF section's contents depend on
the final contents of the symtab and strtab, because it has two sections
whose contents are shuffled to be in 1:1 correspondence with the symtab,
and an internal strtab that gets deduplicated against the ELF strtab
(with offsets adjusted to point into the ELF strtab instead). It is
also compressed if large enough, so its size depends on its contents!
So we cannot construct it as early as most sections: we cannot even
*begin* construction until after the symtab and strtab are finalized.
Thankfully there is already one section treated similarly: compressed
debugging sections: the only differences are that compressed debugging
sections have extra handling to deal with their changing name if
compressed (CTF sections are always called ".ctf" for now, though we
have reserved ".ctf.*" against future use), and that compressed
debugging sections have previously-uncompressed content which has to be
stashed away for later compression, while CTF sections have no content
at all until we generate it (very late).
BFD also cannot do the link itself: libctf knows how to do it, and BFD
cannot call libctf directly because libctf already depends on bfd for
file I/O. So we have to use a pair of callbacks, one, examine_strtab,
which allows a caller to examine the symtab and strtab after
finalization (called from elf_link_swap_symbols_out(), right before the
symtabs are written, and after the strtab has been finalized), and one
which actually does the emission (called emit_ctf simply because it is
grouped with a bunch of section-specific late-emission function calls at
the bottom of bfd_elf_final_link, and a section-specific name seems best
for that). emit_ctf is actually called *twice*: once from lang_process
if the emulation suggests that this bfd target does not examine the
symtab or strtab, and once via a bfd callback if it does. (This means
that non-ELF targets still get CTF emitted, even though the late CTF
emission stage is never called for them).
v2: merged with non-ELF support patch: slight commit message
adjustments.
v3: do not spend time merging CTF, or crash, if the CTF section is
explicitly discarded. Do not try to merge or compress CTF unless
linking.
v4: add CTF_COMPRESSION_THRESHOLD. Annul the freed input ctf_file_t's
after writeout: set SEC_IN_MEMORY on the output contents so a future
bfd enhancement knows it could free it. Add SEC_LINKER_CREATED |
SEC_KEEP to avoid having to add .ctf to the linker script. Drop
now-unnecessary ldlang.h-level elf-bfd.h include and hackery around
it. Adapt to elf32.em->elf.em and elf-generic.em->ldelf*.c
changes.
v5: fix tabdamage. Drop #inclusions in .h files: include in .c files,
.em files, and use struct forwards instead. Use bfd_section_is_ctf
inline function rather than SECTION_IS_CTF macro. Move a few
comments.
* Makefile.def (dependencies): all-ld depends on all-libctf.
* Makefile.in: Regenerated.
include/
* bfdlink.h (elf_strtab_hash): New forward.
(elf_sym_strtab): Likewise.
(struct bfd_link_callbacks <examine_strtab>): New.
(struct bfd_link_callbacks <emit_ctf>): Likewise.
bfd/
* elf-bfd.h (bfd_section_is_ctf): New inline function.
* elf.c (special_sections_c): Add ".ctf".
(assign_file_positions_for_non_load_sections): Note that
compressed debugging sections etc are not assigned here. Treat
CTF sections like SEC_ELF_COMPRESS sections when is_linker_output:
sh_offset -1.
(assign_file_positions_except_relocs): Likewise.
(find_section_in_list): Note that debugging and CTF sections, as
well as reloc sections, are assigned later.
(_bfd_elf_assign_file_positions_for_non_load): CTF sections get
their size and contents updated.
(_bfd_elf_set_section_contents): Skip CTF sections: unlike
compressed sections, they have no uncompressed content to copy at
this stage.
* elflink.c (elf_link_swap_symbols_out): Call the examine_strtab
callback right before the strtab is written out.
(bfd_elf_final_link): Don't cache the section contents of CTF
sections: they are not populated yet. Call the emit_ctf callback
right at the end, after all the symbols and strings are flushed
out.
ld/
* ldlang.h: (struct lang_input_statement_struct): Add the_ctf.
(struct elf_sym_strtab): Add forward.
(struct elf_strtab_hash): Likewise.
(ldlang_ctf_apply_strsym): Declare.
(ldlang_write_ctf_late): Likewise.
* ldemul.h (ldemul_emit_ctf_early): New.
(ldemul_examine_strtab_for_ctf): Likewise.
(ld_emulation_xfer_type) <emit_ctf_early>: Likewise.
(ld_emulation_xfer_type) <examine_strtab_for_ctf>: Likewise.
* ldemul.c (ldemul_emit_ctf_early): New.
(ldemul_examine_strtab_for_ctf): Likewise.
* ldlang.c: Include ctf-api.h.
(CTF_COMPRESSION_THRESHOLD): New.
(ctf_output): New. Initialized in...
(ldlang_open_ctf): ... this new function. Open all the CTF
sections in the input files: mark them non-loaded and empty
so as not to copy their contents to the output, but linker-created
so the section gets created in the target.
(ldlang_merge_ctf): New, merge types via ctf_link_add_ctf and
ctf_link.
(ldlang_ctf_apply_strsym): New, an examine_strtab callback: wrap
ldemul_examine_strtab_for_ctf.
(lang_write_ctf): New, write out the CTF section.
(ldlang_write_ctf_late): New, late call via bfd's emit_ctf hook.
(lang_process): Call ldlang_open_ctf, ldlang_merge_ctf, and
lang_write_ctf.
* ldmain.c (link_callbacks): Add ldlang_ctf_apply_strsym,
ldlang_write_ctf_late.
* emultempl/aix.em: Add ctf-api.h.
* emultempl/armcoff.em: Likewise.
* emultempl/beos.em: Likewise.
* emultempl/elf.em: Likewise.
* emultempl/generic.em: Likewise.
* emultempl/linux.em: Likewise.
* emultempl/msp430.em: Likewise.
* emultempl/pe.em: Likewise.
* emultempl/pep.em: Likewise.
* emultempl/ticoff.em: Likewise.
* emultempl/vanilla.em: Likewise.
* ldcref.c: Likewise.
* ldctor.c: Likewise.
* ldelf.c: Likewise.
* ldelfgen.c: Likewise.
* ldemul.c: Likewise.
* ldexp.c: Likewise.
* ldfile.c: Likewise.
* ldgram.c: Likewise.
* ldlex.l: Likewise.
* ldmain.c: Likewise.
* ldmisc.c: Likewise.
* ldver.c: Likewise.
* ldwrite.c: Likewise.
* lexsup.c: Likewise.
* mri.c: Likewise.
* pe-dll.c: Likewise.
* plugin.c: Likewise.
* ldelfgen.c (ldelf_emit_ctf_early): New.
(ldelf_examine_strtab_for_ctf): tell libctf about the symtab and
strtab.
(struct ctf_strsym_iter_cb_arg): New, state to do so.
(ldelf_ctf_strtab_iter_cb): New: tell libctf about
each string in the strtab in turn.
(ldelf_ctf_symbols_iter_cb): New, tell libctf
about each symbol in the symtab in turn.
* ldelfgen.h (struct elf_sym_strtab): Add forward.
(struct elf_strtab_hash): Likewise.
(struct ctf_file): Likewise.
(ldelf_emit_ctf_early): Declare.
(ldelf_examine_strtab_for_ctf): Likewise.
* emultempl/elf-generic.em (LDEMUL_EMIT_CTF_EARLY): Set it.
(LDEMUL_EXAMINE_STRTAB_FOR_CTF): Likewise.
* emultempl/aix.em (ld_${EMULATION_NAME}_emulation): Add
emit_ctf_early and examine_strtab_for_ctf, NULL by default.
* emultempl/armcoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/beos.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/elf.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/generic.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/linux.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/msp430.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/pe.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/pep.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/ticoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/vanilla.em (ld_vanilla_emulation): Likewise.
* Makefile.am: Pull in libctf (and zlib, a transitive requirement
for compressed CTF section emission). Pass it on to DejaGNU.
* configure.ac: Add AM_ZLIB.
* aclocal.m4: Added zlib.m4.
* Makefile.in: Regenerated.
* testsuite/ld-bootstrap/bootstrap.exp: Use it when relinking ld.
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