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-rw-r--r--elf/dl-conflict.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/elf/dl-conflict.c b/elf/dl-conflict.c
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index 0000000000..5426a5ad44
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+++ b/elf/dl-conflict.c
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+/* Resolve conflicts against already prelinked libraries.
+ Copyright (C) 2001 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 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. */
+
+#include <errno.h>
+#include <libintl.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <ldsodefs.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include "dynamic-link.h"
+
+extern unsigned long int _dl_num_cache_relocations; /* in dl-lookup.c */
+
+void
+_dl_resolve_conflicts (struct link_map *l, ElfW(Rela) *conflict,
+ ElfW(Rela) *conflictend)
+{
+ if (__builtin_expect (_dl_debug_mask & DL_DEBUG_RELOC, 0))
+ _dl_printf ("\nconflict processing: %s\n",
+ l->l_name[0] ? l->l_name : _dl_argv[0]);
+
+ {
+ /* Do the conflict relocation of the object and library GOT and other
+ data. */
+
+ /* This macro is used as a callback from the ELF_DYNAMIC_RELOCATE code. */
+#define RESOLVE_MAP(ref, version, flags) (*ref = NULL, 0)
+#define RESOLVE(ref, version, flags) (*ref = NULL, 0)
+#define RESOLVE_CONFLICT_FIND_MAP(map, r_offset) \
+do \
+ { \
+ while (resolve_conflict_map->l_map_end < (r_offset) \
+ || resolve_conflict_map->l_map_start > (r_offset)) \
+ resolve_conflict_map \
+ = resolve_conflict_map->l_next; \
+ (map) = resolve_conflict_map; \
+ } while (0)
+
+ struct link_map *resolve_conflict_map = _dl_loaded;
+
+#include "dynamic-link.h"
+
+ _dl_num_cache_relocations += conflictend - conflict;
+
+ for (; conflict < conflictend; ++conflict)
+ elf_machine_rela (l, conflict, NULL, NULL, (void *) conflict->r_offset);
+ }
+}