mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 07:10:06 +00:00
e8ed861df7
2004-01-26 David Mosberger <davidm@hpl.hp.com> * elf/link.h (struct dl_phdr_info): Fix typo in comment. * elf/rtld.c (dl_main): After incrementing dl_nloaded, also increment dl_load_adds. * elf/dl-iteratephdr.c (__dl_iterate_phdr): Replace GL(dl_load_subs) with equivalent GL(dl_load_adds - GL(dl_nloaded). (dl_iterate_phdr): Likewise. * elf/dl-close.c (_dl_close): Delete increment of GL(dl_load_subs). * elf/dl-support.c: Remove global variable _dl_load_subs. * sysdeps/generic/ldsodefs.h (struct rtld_global): Remove _dl_load_subs member. 2004-01-27 Jakub Jelinek <jakub@redhat.com> * elf/rtld.c (_dl_start_final): Don't set l_relro_* here. (_dl_start): And neither here. (dl_main): Set GL(dl_loaded)->l_relro_* and GL(dl_rtld_map)->l_relro_*.
101 lines
2.9 KiB
C
101 lines
2.9 KiB
C
/* Get loaded objects program headers.
|
|
Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Jakub Jelinek <jakub@redhat.com>, 2001.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public License as
|
|
published by the Free Software Foundation; either version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser 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. */
|
|
|
|
#include <errno.h>
|
|
#include <ldsodefs.h>
|
|
#include <stddef.h>
|
|
#include <bits/libc-lock.h>
|
|
|
|
static void
|
|
cancel_handler (void *arg __attribute__((unused)))
|
|
{
|
|
__rtld_lock_unlock_recursive (GL(dl_load_lock));
|
|
}
|
|
|
|
hidden_proto (__dl_iterate_phdr)
|
|
int
|
|
__dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info,
|
|
size_t size, void *data), void *data)
|
|
{
|
|
struct link_map *l;
|
|
struct dl_phdr_info info;
|
|
int ret = 0;
|
|
|
|
/* Make sure we are alone. */
|
|
__rtld_lock_lock_recursive (GL(dl_load_lock));
|
|
__libc_cleanup_push (cancel_handler, 0);
|
|
|
|
for (l = GL(dl_loaded); l != NULL; l = l->l_next)
|
|
{
|
|
info.dlpi_addr = l->l_addr;
|
|
info.dlpi_name = l->l_name;
|
|
info.dlpi_phdr = l->l_phdr;
|
|
info.dlpi_phnum = l->l_phnum;
|
|
info.dlpi_adds = GL(dl_load_adds);
|
|
info.dlpi_subs = GL(dl_load_adds) - GL(dl_nloaded);
|
|
ret = callback (&info, sizeof (struct dl_phdr_info), data);
|
|
if (ret)
|
|
break;
|
|
}
|
|
|
|
/* Release the lock. */
|
|
__libc_cleanup_pop (0);
|
|
__rtld_lock_unlock_recursive (GL(dl_load_lock));
|
|
|
|
return ret;
|
|
}
|
|
hidden_def (__dl_iterate_phdr)
|
|
|
|
#ifdef SHARED
|
|
|
|
weak_alias (__dl_iterate_phdr, dl_iterate_phdr);
|
|
|
|
#else
|
|
|
|
/* dl-support.c defines these and initializes them early on. */
|
|
extern ElfW(Phdr) *_dl_phdr;
|
|
extern size_t _dl_phnum;
|
|
|
|
int
|
|
dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info,
|
|
size_t size, void *data), void *data)
|
|
{
|
|
if (_dl_phnum != 0)
|
|
{
|
|
/* This entry describes this statically-linked program itself. */
|
|
struct dl_phdr_info info;
|
|
int ret;
|
|
info.dlpi_addr = 0;
|
|
info.dlpi_name = "";
|
|
info.dlpi_phdr = _dl_phdr;
|
|
info.dlpi_phnum = _dl_phnum;
|
|
info.dlpi_adds = GL(dl_load_adds);
|
|
info.dlpi_subs = GL(dl_load_adds) - GL(dl_nloaded);
|
|
ret = (*callback) (&info, sizeof (struct dl_phdr_info), data);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return __dl_iterate_phdr (callback, data);
|
|
}
|
|
|
|
|
|
#endif
|