glibc/sysdeps/unix/sysv/linux/i386/dl-librecon.h

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/* Optional code to distinguish library flavours.
Copyright (C) 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _DL_LIBRECON_H
#define _DL_LIBRECON_H 1
#define DISTINGUISH_LIB_VERSIONS \
do \
{ \
/* We have to find out whether the binary is linked against \
libc 5 or glibc. We do this by looking at all the DT_NEEDED \
entries. If one is libc.so.5 this is a libc 5 linked binary. */ \
if (_dl_loaded->l_info[DT_NEEDED]) \
{ \
/* We have dependencies. */ \
const ElfW(Dyn) *d; \
const char *strtab; \
\
Update. 2000-03-23 Andreas Jaeger <aj@suse.de> * elf/dl-addr.c: Adjust include paths for ldsodefs location change. * elf/dl-debug.c: Likewise. * elf/dl-deps.c: Likewise. * elf/dl-error.c: Likewise. * elf/dl-fini.c: Likewise. * elf/dl-init.c: Likewise. * elf/dl-load.c: Likewise. * elf/dl-lookup.c: Likewise. * elf/dl-minimal.c: Likewise. * elf/dl-object.c: Likewise. * elf/dl-open.c: Likewise. * elf/dl-preinit.c: Likewise. * elf/dl-profile.c: Likewise. * elf/dl-profstub.c: Likewise. * elf/dl-reloc.c: Likewise. * elf/dl-runtime.c: Likewise. * elf/dl-support.c: Likewise. * elf/dl-symbol.c: Likewise. * elf/dl-version.c: Likewise. * elf/rtld.c: Likewise. * elf/sprof.c: Likewise. * sysdeps/generic/dl-cache.c: Likewise. * sysdeps/generic/dl-origin.c: Likewise. * sysdeps/generic/dl-sysdep.c: Likewise. * sysdeps/generic/elf/backtracesyms.c: Likewise. * sysdeps/generic/elf/backtracesymsfd.c: Likewise. * sysdeps/generic/libc-start.c: Likewise. * sysdeps/mach/hurd/dl-sysdep.c: Likewise. * sysdeps/powerpc/dl-machine.c: Likewise. * sysdeps/powerpc/elf/libc-start.c: Likewise. * sysdeps/sparc/sparc32/dl-machine.h: Likewise. * sysdeps/sparc/sparc64/dl-machine.h: Likewise. * sysdeps/unix/sysv/linux/dl-origin.c: Likewise. * elf/ldsodefs.h: Move file to ... * sysdeps/generic/ldsodefs.h: ... here. * sysdeps/generic/ldsodefs.h: Add definition for D_PTR. * sysdeps/mips/elf/ldsodefs.h: New file. * elf/dl-version.c (match_symbol): Use D_PTR to access relocated entries in l_info. (_dl_check_map_versions): Likewise. * elf/dl-reloc.c (_dl_relocate_object): Likewise. * elf/dl-load.c (_dl_init_paths): Likewise. (_dl_map_object): Likewise. * elf/dynamic-link.h (_ELF_DYNAMIC_DO_RELOC): Likewise. (elf_get_dynamic_info): Likewise. * elf/do-lookup.h (FCT): Likewise. * elf/do-rel.h (elf_dynamic_do_rel): Likewise. * elf/dl-deps.c (_dl_map_object_deps): Likewise. * elf/dl-addr.c (_dl_addr): Likewise. * elf/dl-runtime.c (profile_fixup): Likewise. (fixup): Likewise. * elf/dl-init.c (_dl_init_next): Likewise. * sysdeps/generic/dl-machine.h (elf_machine_runtime_setup): Likewise. * sysdeps/unix/sysv/linux/i386/dl-librecon.h (DISTINGUISH_LIB_VERSIONS): Likewise. * sysdeps/i386/dl-machine.h (elf_machine_runtime_setup): Likewise. (elf_machine_rel): Likewise. * elf/dynamic-link.h (elf_get_dynamic_info): Only change l_info for writable dynamic section.
2000-03-23 20:31:46 +00:00
strtab = (const char *) D_PTR (_dl_loaded, l_info[DT_STRTAB]); \
\
for (d = _dl_loaded->l_ld; d->d_tag != DT_NULL; ++d) \
if (d->d_tag == DT_NEEDED \
&& strcmp (strtab + d->d_un.d_val, "libc.so.5") == 0) \
break; \
\
/* We print a `5' or `6' depending on the outcome. */ \
_dl_sysdep_message (d->d_tag != DT_NULL ? "5\n" : "6\n", NULL); \
} \
} \
while (0)
/* Recognizing extra environment variables. */
#define EXTRA_LD_ENVVARS \
case 15: \
if (memcmp (&envline[3], "LIBRARY_VERSION", 15) == 0) \
{ \
_dl_correct_cache_id = envline[19] == '5' ? 2 : 3; \
break; \
}
Update. 1998-07-08 22:18 Ulrich Drepper <drepper@cygnus.com> * elf/Versions: Add _dl_mcount_wrapper_check. * elf/dlfcn.h (DL_CALL_FCT): Don't test _dl_profile_map, simply use _dl_mcount_wrapper_check. * iconv/skeleton.c: Use DL_CALL_FCT, not _CALL_DL_FCT. * elf/dl-reloc.c (_dl_relocate_object): Don't declare using internal_function. * elf/ldsodefs.h: Likewise. * io/fcntl.h: Define SEEK_SET, SEEK_CUR, and SEEK_END. * libio/stdio.h: Make sure va_list is defined for X/Open. Define P_tmpdir for X/Open. * posix/regex.h: Fix typo. * posix/unistd.h: Define intptr_t if not already happened. Add pthread_atfork prototype. * sysdeps/generic/bits/types.h: Define __intptr_t. * sysdeps/unix/sysv/linux/alpha/bits/types.h: Likewise. * sysdeps/unix/sysv/linux/bits/types.h: Likewise. * sysdeps/unix/sysv/linux/bits/mips/types.h: Likewise. * sysdeps/unix/sysv/linux/bits/sparc/sparc64/types.h: Likewise. * sysdeps/unix/sysv/sysv4/solaris2/bits/types.h: Likewise. * sysdeps/wordsize-32/stdint.h: Don't define intptr_t if already done. * sysdeps/wordsize-64/stdint.h: Likewise. * posix/bits/posix1_lim.h: Define _POSIX_CLOCKRES_MIN. * signal/Makefile (headers): Add bits/sigthread.h. * signal/signal.h: Include bits/sigthread.h. * sysdeps/generic/bits/sigthread.h: New file. * stdlib/stdlib.h: Declare rand_r use __USE_POSIX. * sysdeps/generic/bits/confname.h: Define _PC_FILESIZEBITS. * sysdeps/posix/pathconf.c: Handle _PC_FILESIZEBITS. * sysdeps/unix/sysv/linux/alpha/fpathconf.c: New file. * sysdeps/unix/sysv/linux/alpha/pathconf.c: New file. * sysdeps/generic/bits/dlfcn.h: Define RTLD_LOCAL. * elf/rtld.c: Remove preloading and loadpath variables in SUID programs. * sysdeps/generic/dl-sysdep.c: Define unsetenv. * sysdeps/unix/sysv/linux/i386/dl-librecon.h: Define other envvar names. * sysdeps/unix/sysv/linux/bits/errno.h: Define ECANCELED. * sysdeps/unix/sysv/linux/bits/fcntl.h: Define O_RSYNC and O_DSYNC. Remove O_READ and O_WRITE definition. * sysdeps/unix/sysv/linux/bits/resource.h: Define RLIM_SAVED_MAX and RLIM_SAVED_CUR. * sysdeps/unix/sysv/linux/fstatvfs.h: Handle UFS filesystem. 1998-07-06 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Makerules ($(common-objpfx)sysd-versions): Expect awk script in scripts directory. Pass move-if-change to awk. (common-generated): Add $(version-maps) and sysd-versions. * versions.awk: Moved to... * scripts/versions.awk: ... here. Use move-if-change to void touching unchanged files. Print "version-maps = ..." instead of "all-version-maps = ..." and without $(common-objpfx). Explain expected variable names. * Makefile (distribute): Updated. 1998-07-06 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * misc/getttyent.c (getttyent): Don't return with locked stream. * misc/mntent_r.c (__getmntent_r): Likewise. 1998-07-07 18:24 Ulrich Drepper <drepper@cygnus.com> * libio/fileops.c (_IO_do_write): Don't shrink wwrite buffer to zero if stream is line buffered. (_io_file_overflow): Likewise. * libio/libio.h (_IO_putc_unlocked): Make sure that for line-buffered streams writing '\n' flushes the string.
1998-07-08 22:53:56 +00:00
/* Extra unsecure variables. */
#define EXTRA_UNSECURE_ENVVARS "LD_AOUT_LIBRARY_PATH", "LD_AOUT_PRELOAD"
#endif /* dl-librecon.h */