/* Resolve conflicts against already prelinked libraries. Copyright (C) 2001, 2002, 2003, 2004, 2005, 2008 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 <libintl.h> #include <stdlib.h> #include <unistd.h> #include <ldsodefs.h> #include <sys/mman.h> #include <sys/param.h> #include <sys/types.h> #include "dynamic-link.h" void _dl_resolve_conflicts (struct link_map *l, ElfW(Rela) *conflict, ElfW(Rela) *conflictend) { #if ! ELF_MACHINE_NO_RELA if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_RELOC, 0)) _dl_debug_printf ("\nconflict processing: %s\n", l->l_name[0] ? l->l_name : rtld_progname); { /* 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, NULL) #define RESOLVE(ref, version, flags) (*ref = NULL, 0) #define RESOLVE_CONFLICT_FIND_MAP(map, r_offset) \ do { \ while ((resolve_conflict_map->l_map_end < (ElfW(Addr)) (r_offset)) \ || (resolve_conflict_map->l_map_start > (ElfW(Addr)) (r_offset))) \ resolve_conflict_map = resolve_conflict_map->l_next; \ \ (map) = resolve_conflict_map; \ } while (0) /* Prelinking makes no sense for anything but the main namespace. */ assert (l->l_ns == LM_ID_BASE); struct link_map *resolve_conflict_map __attribute__ ((__unused__)) = GL(dl_ns)[LM_ID_BASE]._ns_loaded; #include "dynamic-link.h" /* Override these, defined in dynamic-link.h. */ #undef CHECK_STATIC_TLS #define CHECK_STATIC_TLS(ref_map, sym_map) ((void) 0) #undef TRY_STATIC_TLS #define TRY_STATIC_TLS(ref_map, sym_map) (0) GL(dl_num_cache_relocations) += conflictend - conflict; for (; conflict < conflictend; ++conflict) elf_machine_rela (l, conflict, NULL, NULL, (void *) conflict->r_offset); } #endif }