text: /* Resolve conflicts against already prelinked libraries.
     Copyright (C) 2001-2019 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, see <http://www.gnu.org/licenses/>.  */
  
  #include <errno.h>
  #include <ldsodefs.h>
  #include <libintl.h>
  #include <stdlib.h>
  #include <sys/mman.h>
  #include <sys/param.h>
  #include <sys/types.h>
  #include <unistd.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 (__glibc_unlikely(GLRO(dl_debug_mask) & DL_DEBUG_RELOC))
          _dl_debug_printf("\nconflict processing: %s\n",
                           DSO_FILENAME(l->l_name));
  
      {
          /* 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,
                               0);
      }
  #endif
  }
  