mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
86d2c878ac
* elf/linux-compat.c: New file. * elf/Makefile (distribute): Add linux-compat.c. (generated): Add librtld.so. [$(config-os)=linux*] (extra-objs): Add linux-compat.so. [$(config-os)=linux*] (extra-objs): Add ld-linux.so.1. (librtld.so): New target. (ld.so, ld-linux.so.1): Make from librtld.so. * elf/rtld.c (dl_main): Instead of weak call to _dl_compat_init, call our own DT_INIT if we have one (and then clear it). (__dgettext): New weak function. * intl/localealias.c (read_alias_file): Avoid sprintf; use memcpy by hand instead. * sysdeps/generic/_strerror.c (_strerror_internal): Use _itoa instead of snprintf. * sysdeps/mach/_strerror.c (_strerror_internal): Don't write BUF[BUFLEN]. * elf/rtld.c (rtld_map): New static variable. (_dl_start): Use a differently named local BOOTSTRAP_MAP for the bootstrapping. Then copy data into `rtld_map'. (dl_main): Finish filling in rtld_map and link it into the chain, instead of allocating a new structure. (dl_main): Call _dl_compat_init if it is defined (use weak ref). * elf/dlsym.c: Fix last change: move REF out of `doit'. control. using it. and cwdir ports. functions. these. $(libdir)(rtld-installed-name). leading zeroes. in the rhs. pattern rule. never know. (fork): Use symbol_set_* macros for _hurd_fork_locks. * sysdeps/unix/sysv/sysv4/linux/i386/sysdep.S (__syscall_error): instead of unix/sysv. -dynamic-linker. (__printf_fp): Last arg ARGS is now `const void **const'; locale/C-ctype.c. * sysdeps/mach/hurd/sigsuspend.c: Likewise. * sysdeps/mach/hurd/mips/sigreturn.c: Likewise. alias gethostname. setitmr setpgrp (_S_msg_get_exec_flags, _S_msg_set_exec_flags, (abort_thread, abort_rpcs): Take same new arg and pass it through.
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/* dlsym -- Look up a symbol in a shared object loaded by `dlopen'.
|
|
Copyright (C) 1995 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
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., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
#include <stddef.h>
|
|
#include <link.h>
|
|
#include <dlfcn.h>
|
|
#include <setjmp.h>
|
|
|
|
|
|
void *
|
|
dlsym (void *handle, const char *name)
|
|
{
|
|
struct link_map *map = handle;
|
|
struct link_map *real_next;
|
|
Elf32_Addr loadbase;
|
|
const Elf32_Sym *ref = NULL;
|
|
int lose;
|
|
void doit (void)
|
|
{
|
|
loadbase = _dl_lookup_symbol (name, &ref, map, map->l_name, 1);
|
|
}
|
|
|
|
/* Confine the symbol scope to just this map. */
|
|
real_next = map->l_next;
|
|
map->l_next = NULL;
|
|
lose = _dlerror_run (doit);
|
|
map->l_next = real_next;
|
|
|
|
return lose ? NULL : (void *) (loadbase + ref->st_value);
|
|
}
|