Update.
[glibc.git] / elf / dl-iteratephdr.c
blobff11ce5bff665bc78293840d0011024eea57b53d
1 /* Get loaded objects program headers.
2 Copyright (C) 2001 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Jakub Jelinek <jakub@redhat.com>, 2001.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Library General Public License as
8 published by the Free Software Foundation; either version 2 of the
9 License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Library General Public License for more details.
16 You should have received a copy of the GNU Library General Public
17 License along with the GNU C Library; see the file COPYING.LIB. If not,
18 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 #include <errno.h>
22 #include <ldsodefs.h>
23 #include <stddef.h>
24 #include <bits/libc-lock.h>
26 int
27 __dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info,
28 size_t size, void *data), void *data)
30 struct link_map *l;
31 struct dl_phdr_info info;
32 int ret = 0;
34 /* Make sure we are alone. */
35 __libc_lock_lock_recursive (_dl_load_lock);
37 for (l = _dl_loaded; l != NULL; l = l->l_next)
39 /* Skip the dynamic linker. */
40 if (l->l_phdr == NULL)
41 continue;
42 info.dlpi_addr = l->l_addr;
43 info.dlpi_name = l->l_name;
44 info.dlpi_phdr = l->l_phdr;
45 info.dlpi_phnum = l->l_phnum;
46 ret = callback (&info, sizeof (struct dl_phdr_info), data);
47 if (ret)
48 break;
51 /* Release the lock. */
52 __libc_lock_unlock_recursive (_dl_load_lock);
54 return ret;
57 #ifdef SHARED
58 weak_alias (__dl_iterate_phdr, dl_iterate_phdr);
59 #endif