Don't premature stop parsing mode string of fopen.
[glibc.git] / elf / dl-conflict.c
blobb7301056286af62da7296f8659e27c0fd453563b
1 /* Resolve conflicts against already prelinked libraries.
2 Copyright (C) 2001, 2002, 2003, 2004, 2005, 2008 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 Lesser General Public License as
8 published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser 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 <libintl.h>
23 #include <stdlib.h>
24 #include <unistd.h>
25 #include <ldsodefs.h>
26 #include <sys/mman.h>
27 #include <sys/param.h>
28 #include <sys/types.h>
29 #include "dynamic-link.h"
31 void
32 _dl_resolve_conflicts (struct link_map *l, ElfW(Rela) *conflict,
33 ElfW(Rela) *conflictend)
35 #if ! ELF_MACHINE_NO_RELA
36 if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_RELOC, 0))
37 _dl_debug_printf ("\nconflict processing: %s\n",
38 l->l_name[0] ? l->l_name : rtld_progname);
41 /* Do the conflict relocation of the object and library GOT and other
42 data. */
44 /* This macro is used as a callback from the ELF_DYNAMIC_RELOCATE code. */
45 #define RESOLVE_MAP(ref, version, flags) (*ref = NULL, NULL)
46 #define RESOLVE(ref, version, flags) (*ref = NULL, 0)
47 #define RESOLVE_CONFLICT_FIND_MAP(map, r_offset) \
48 do { \
49 while ((resolve_conflict_map->l_map_end < (ElfW(Addr)) (r_offset)) \
50 || (resolve_conflict_map->l_map_start > (ElfW(Addr)) (r_offset))) \
51 resolve_conflict_map = resolve_conflict_map->l_next; \
53 (map) = resolve_conflict_map; \
54 } while (0)
56 /* Prelinking makes no sense for anything but the main namespace. */
57 assert (l->l_ns == LM_ID_BASE);
58 struct link_map *resolve_conflict_map __attribute__ ((__unused__))
59 = GL(dl_ns)[LM_ID_BASE]._ns_loaded;
61 #include "dynamic-link.h"
63 /* Override these, defined in dynamic-link.h. */
64 #undef CHECK_STATIC_TLS
65 #define CHECK_STATIC_TLS(ref_map, sym_map) ((void) 0)
66 #undef TRY_STATIC_TLS
67 #define TRY_STATIC_TLS(ref_map, sym_map) (0)
69 GL(dl_num_cache_relocations) += conflictend - conflict;
71 for (; conflict < conflictend; ++conflict)
72 elf_machine_rela (l, conflict, NULL, NULL, (void *) conflict->r_offset);
74 #endif