diff options
author | Ulrich Drepper <drepper@redhat.com> | 1997-03-08 05:28:20 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1997-03-08 05:28:20 +0000 |
commit | 4cca6b868f08e4f95a4c3786a69135676b086c50 (patch) | |
tree | ea8f4fbb6972588bc85c5979175c1e5cb6734993 /elf | |
parent | f5f52655ceb5152d79ca88db5293fa1136969303 (diff) | |
download | glibc-cvs/libc-970311.tar.gz |
Update.cvs/libc-ud-970307cvs/libc-970316cvs/libc-970315cvs/libc-970314cvs/libc-970313cvs/libc-970312cvs/libc-970311cvs/libc-970310cvs/libc-970309cvs/libc-970308
1997-03-08 05:30 Ulrich Drepper <drepper@cygnus.com>
* argp/Makefile (routines): Add argp-eexst.
* argp/argp-ba.c (argp_program_bug_address): Make `const'.
* argp/argp-eexst.c: New file. Define exit status variable.
* argp/argp-help.c (__argp_state_help): Use argp_err_exit_status
variable instead of always exiting with value 1.
* argp/argp-pv.c (argp_program_version): Make `const'.
* argp/argp.h: Declare argp_err_exit_status.
Patches by Miles Bader <miles@gnu.ai.mit.edu>.
* locale/programs/localedef.c: Use argp_err_exit_status to
terminate with correct value.
* inet/rcmd.c (iruserok): Use euidaccess instead of half-hearted
switching of UID before opening .rhosts.
* libio/vsnprintf.c: Change implementation to follow ISO C 9X
proposal. The return value now is always the number of characters
which would be written if enough space is available.
* manual/stdio.texi: Update description for new behaviour.
* locale/locale.h (__locale_t): Don't use __locale_t for struct
name and pointer to struct since old gccs cannot keep the namespaces
apart. Rename struct to __locale_struct.
* locale/duplocale.h: Likewise.
* locale/newlocale.h: Likewise.
* math/Makefile (headers): Add complex.h and cmathcalls.h.
(routines): Remove w_cabs. Add conj, cimag, creal, and cabs.
* math/math.h: Undefine __MATHDECL_1, __MATHDECL, and __MATHCALL
after use.
(signgam): Move declaration to here from mathcalls.h.
* math/mathcalls.h (cabs, __cabs_complex, signgam): Remove definition.
Correct comment for fmin and fmax.
Start implementing complex math function from ISO C 9X.
* math/complex.h: New file.
* math/cmathcalls.h: New file.
* math/cabs.c: New file.
* math/cabsf.c: New file.
* math/cabsl.c: New file.
* math/cimag.c: New file.
* math/cimagf.c: New file.
* math/cimagl.c: New file.
* math/conj.c: New file.
* math/conjf.c: New file.
* math/conjl.c: New file.
* math/creal.c: New file.
* math/crealf.c: New file.
* math/creall.c: New file.
* sysdeps/libm-ieee754/w_cabs.c: Removed.
* sysdeps/libm-ieee754/w_cabsf.c: Removed.
* sysdeps/libm-ieee754/w_cabsl.c: Removed.
* posix/regex.c: Merge with regex sources from Arnold Robbins'
version in GNU awk.
* posix/regex.h: Likewise.
Add regex test suite by Tom Lord.
* posix/Makefile (distribute): Add TESTS, TESTS2C.sed, and testcases.h.
(tests): Add runtests.
(before-compile): Add testcases.h.
(testcases.h): New rule to generate header with tests.
* posix/TESTS: New file.
* posix/TESTS2C.sed.: New file.
* posix/runtests.c: New file.
* posix/testcases.h: New file.
* sysdeps/unix/sysv/linux/poll.c: Test whether poll syscall is
available and use fall-back implementation if not.
* sysdeps/unix/sysv/linux/syscalls.list: Sort entries.
* time/ialloc.c: Update from tzcode1997c.
* time/private.h: Likewise.
* time/scheck.c: Likewise.
* time/tzselect.ksh: Likewise.
* time/zdump.c: Likewise.
* time/zic.c: Likewise.
* time/tzfile.c: Pretty print.
1997-03-06 07:37 Geoff Keating <geoffk@ozemail.com.au>
Port to powerpc-*-linux-gnu. Slightly tested, under MkLinux,
on a 601.
* sysdeps/powerpc/Implies: Added.
* sysdeps/powerpc/__longjmp.S: Added.
* sysdeps/powerpc/__math.h: Added.
* sysdeps/powerpc/bsd-_setjmp.S: Added.
* sysdeps/powerpc/bsd-setjmp.S: Added.
* sysdeps/powerpc/dl-machine.h: Added.
* sysdeps/powerpc/ffs.c: Added.
* sysdeps/powerpc/fpu_control.h: Added.
* sysdeps/powerpc/jmp_buf.h: Added.
* sysdeps/powerpc/setjmp.S: Added.
* sysdeps/powerpc/strlen.s: Added.
* sysdeps/powerpc/elf/start.c: Added.
* sysdeps/powerpc/fpu_control.h: Added.
* sysdeps/powerpc/jmp_buf.h: Added.
* sysdeps/unix/sysv/linux/powerpc/Dist: Added.
* sysdeps/unix/sysv/linux/powerpc/_exit.S: Added.
* sysdeps/unix/sysv/linux/powerpc/brk.c: Added.
* sysdeps/unix/sysv/linux/powerpc/clone.S: Added.
* sysdeps/unix/sysv/linux/powerpc/init-first.h: Added.
* sysdeps/unix/sysv/linux/powerpc/ioctl-types.h: Added.
* sysdeps/unix/sysv/linux/powerpc/profil.c: Added.
* sysdeps/unix/sysv/linux/powerpc/sigreturn.S: Added.
* sysdeps/unix/sysv/linux/powerpc/socket.S: Added.
* sysdeps/unix/sysv/linux/powerpc/syscall.S: Added.
* sysdeps/unix/sysv/linux/powerpc/syscalls.list: Added.
* sysdeps/unix/sysv/linux/powerpc/sysdep.c: Added.
* sysdeps/unix/sysv/linux/powerpc/sysdep.h: Added.
* sysdeps/unix/sysv/linux/powerpc/termbits.h: Added.
* sysdeps/unix/sysv/linux/powerpc/sys/syscall.h: Added.
1997-03-05 05:24 Geoff Keating <geoffk@ozemail.com.au>
* elf/dl-runtime.c (fixup): Add ELF_FIXUP_RETURNS_ADDRESS switch,
because knowing the first instruction of a PowerPC PLT trampoline
is not very helpful.
1997-03-04 08:04 Geoff Keating <geoffk@ozemail.com.au>
* elf/dl-load.c (ELF_PREFERRED_ADDRESS, ELF_PREFERRED_ADDRESS_DATA,
ELF_FIXED_ADDRESS): Added. These are for dl-machine.h to indicate
a preference as to where executables should be loaded.
1997-02-28 08:50 Geoff Keating <geoffk@ozemail.com.au>
* elf/elf.h: Add in all those PowerPC reloc types.
1997-02-24 07:12 Geoff Keating <geoffk@ozemail.com.au>
* stdio-common/vfscanf.c: Use __va_copy if available.
1997-03-06 13:50 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* malloc/malloc.c (mprotect) [_LIBC]: Define as __mprotect to
clean up namespace.
1997-03-07 14:27 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/libm-ieee754/s_fpclassify.c (__fpclassify): Don't use
non-existing GET_WORDS macro, use EXTRACT_WORDS.
Reported by Andres Schwab <schwab@issan.informatik.uni-dortmund.de>.
1997-03-07 05:27 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/i386/sigaction.c: The user- and
kernel-level sigaction structure is different. handle this
correctly.
Bug report by Andres Jaeger <jaeger@informatik.uni-kl.de>.
1997-03-06 05:55 David Engel <david@sw.ods.com>
* sysdeps/generic/dl-cache.c (_dl_load_cache_lookup): Also
recognize cache entries with flag == 3.
1997-03-06 01:05 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/generic/netinet/in.h (INADDR_NONE): Cast to unsigned int.
(INADDR_LOOPBACK): Likewise.
* sysdeps/unix/sysv/linux/netinet/in.h: Likewise.
* manual/socket.texi: Correct types of INADDR_* constants from
unsigned long to unsigned.
1997-03-05 23:14 Ulrich Drepper <drepper@cygnus.com>
* time/antarctica: Update from tzdata1997c.
* time/asia: Likewise.
* time/zone.tab: Likewise.
1997-03-05 00:43 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* configure.in (libc_cv_asm_symver_directive,
libc_cv_ld_version_script_option): Remove unknown instruction from
assembler test file.
1997-03-04 19:14 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/m68k/fpu/__math.h: Update feature tests to use
__USE_ISOC9X.
[__USE_ISOC9X]: Define __log2 and __exp2 inlines.
(fabs): Remove defininition, it is a gcc builtin.
(sqrt, __sqrt): Remove definition, they have wrappers in libm.
1997-03-04 10:11 H.J. Lu <hjl@lucon.org>
* sunrpc/Makefile ($(objpfx)rpc-proto.c): Create subdir before
generating file.
1997-03-05 03:59 Ulrich Drepper <drepper@cygnus.com>
* inet/rcmd.c (__ivaliduser): Don't use getline, but __getline
instead to avoid namespace problems.
Reported by David Mosberger-Tang <davidm@AZStarNet.COM>.
1997-03-03 19:01 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* login/utmp_file.c: Fix previous change. Make portable by
checking the _HAVE_UT_* feature macros.
* libio/fileops.c (_IO_file_finish): Likewise.
Diffstat (limited to 'elf')
-rw-r--r-- | elf/dl-load.c | 31 | ||||
-rw-r--r-- | elf/dl-runtime.c | 4 | ||||
-rw-r--r-- | elf/elf.h | 65 |
3 files changed, 96 insertions, 4 deletions
diff --git a/elf/dl-load.c b/elf/dl-load.c index a103d38548..10cc074a6a 100644 --- a/elf/dl-load.c +++ b/elf/dl-load.c @@ -67,6 +67,18 @@ int _dl_zerofd = -1; #define ANONFD _dl_zerofd #endif +/* Handle situations where we have a preferred location in memory for + the shared objects. */ +#ifdef ELF_PREFERRED_ADDRESS_DATA +ELF_PREFERRED_ADDRESS_DATA; +#endif +#ifndef ELF_PREFERRED_ADDRESS +#define ELF_PREFERRED_ADDRESS(loader, maplength, mapstartpref) (mapstartpref) +#endif +#ifndef ELF_FIXED_ADDRESS +#define ELF_FIXED_ADDRESS(loader, mapstart) ((void) 0) +#endif + size_t _dl_pagesize; @@ -315,11 +327,16 @@ _dl_map_object_from_fd (char *name, int fd, char *realname, So we map the first segment without MAP_FIXED, but with its extent increased to cover all the segments. Then we remove access from excess portion, and there is known sufficient space - there to remap from the later segments. */ + there to remap from the later segments. + + As a refinement, sometimes we have an address that we would + prefer to map such objects at; but this is only a preference, + the OS can do whatever it likes. */ caddr_t mapat; - mapat = map_segment (c->mapstart, - loadcmds[nloadcmds - 1].allocend - c->mapstart, - c->prot, 0, c->mapoff); + ElfW(Addr) mappref; + size_t maplength = loadcmds[nloadcmds - 1].allocend - c->mapstart; + mappref = ELF_PREFERRED_ADDRESS (loader, maplength, c->mapstart); + mapat = map_segment (mappref, maplength, c->prot, 0, c->mapoff); l->l_addr = (ElfW(Addr)) mapat - c->mapstart; /* Change protection on the excess portion to disallow all access; @@ -332,6 +349,12 @@ _dl_map_object_from_fd (char *name, int fd, char *realname, 0); goto postmap; } + else + { + /* Notify ELF_PREFERRED_ADDRESS that we have to load this one + fixed. */ + ELF_FIXED_ADDRESS (loader, c->mapstart); + } while (c < &loadcmds[nloadcmds]) { diff --git a/elf/dl-runtime.c b/elf/dl-runtime.c index 08c605cd0f..502c35d5d2 100644 --- a/elf/dl-runtime.c +++ b/elf/dl-runtime.c @@ -153,7 +153,11 @@ fixup ( *_dl_global_scope_end = NULL; /* Return the address that was written by the relocation. */ +#ifdef ELF_FIXUP_RETURNS_ADDRESS + return (ElfW(Addr))(l->l_addr + reloc->r_offset); +#else return *(ElfW(Addr) *) (l->l_addr + reloc->r_offset); +#endif } @@ -915,6 +915,71 @@ typedef Elf32_Addr Elf32_Conflict; #define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */ #define R_ALPHA_RELATIVE 27 /* Adjust by program base */ + +/* PowerPC specific declarations */ + +/* PowerPC relocations defined by the ABIs */ +#define R_PPC_NONE 0 +#define R_PPC_ADDR32 1 +#define R_PPC_ADDR24 2 +#define R_PPC_ADDR16 3 +#define R_PPC_ADDR16_LO 4 +#define R_PPC_ADDR16_HI 5 +#define R_PPC_ADDR16_HA 6 +#define R_PPC_ADDR14 7 +#define R_PPC_ADDR14_BRTAKEN 8 +#define R_PPC_ADDR14_BRNTAKEN 9 +#define R_PPC_REL24 10 +#define R_PPC_REL14 11 +#define R_PPC_REL14_BRTAKEN 12 +#define R_PPC_REL14_BRNTAKEN 13 +#define R_PPC_GOT16 14 +#define R_PPC_GOT16_LO 15 +#define R_PPC_GOT16_HI 16 +#define R_PPC_GOT16_HA 17 +#define R_PPC_PLTREL24 18 +#define R_PPC_COPY 19 +#define R_PPC_GLOB_DAT 20 +#define R_PPC_JMP_SLOT 21 +#define R_PPC_RELATIVE 22 +#define R_PPC_LOCAL24PC 23 +#define R_PPC_UADDR32 24 +#define R_PPC_UADDR16 25 +#define R_PPC_REL32 26 +#define R_PPC_PLT32 27 +#define R_PPC_PLTREL32 28 +#define R_PPC_PLT16_LO 29 +#define R_PPC_PLT16_HI 30 +#define R_PPC_PLT16_HA 31 +#define R_PPC_SDAREL16 32 +#define R_PPC_SECTOFF 33 +#define R_PPC_SECTOFF_LO 34 +#define R_PPC_SECTOFF_HI 35 +#define R_PPC_SECTOFF_HA 36 + +/* The remaining relocs are from the Embedded ELF ABI, and are not + in the SVR4 ELF ABI. */ +#define R_PPC_EMB_NADDR32 101 +#define R_PPC_EMB_NADDR16 102 +#define R_PPC_EMB_NADDR16_LO 103 +#define R_PPC_EMB_NADDR16_HI 104 +#define R_PPC_EMB_NADDR16_HA 105 +#define R_PPC_EMB_SDAI16 106 +#define R_PPC_EMB_SDA2I16 107 +#define R_PPC_EMB_SDA2REL 108 +#define R_PPC_EMB_SDA21 109 +#define R_PPC_EMB_MRKREF 110 +#define R_PPC_EMB_RELSEC16 111 +#define R_PPC_EMB_RELST_LO 112 +#define R_PPC_EMB_RELST_HI 113 +#define R_PPC_EMB_RELST_HA 114 +#define R_PPC_EMB_BIT_FLD 115 +#define R_PPC_EMB_RELSDA 116 + +/* This is a phony reloc to handle any old fashioned TOC16 references + that may still be in object files. */ +#define R_PPC_TOC16 255 + __END_DECLS #endif /* elf.h */ |