sysdeps/unix/sysv/linux/i386/readelflib.c

   1 /* Copyright (C) 1999, 2000, 2001, 2005 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Andreas Jaeger <aj@suse.de>, 1999 and
   4                   Jakub Jelinek <jakub@redhat.com>, 2000.
   5
   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
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  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.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20
  21 int process_elf32_file (const char *file_name, const char *lib, int *flag,
  22                         unsigned int *osversion, char **soname,
  23                         void *file_contents, size_t file_length);
  24 int process_elf64_file (const char *file_name, const char *lib, int *flag,
  25                         unsigned int *osversion, char **soname,
  26                         void *file_contents, size_t file_length);
  27
  28 /* Returns 0 if everything is ok, != 0 in case of error.  */
  29 int
  30 process_elf_file (const char *file_name, const char *lib, int *flag,
  31                   unsigned int *osversion, char **soname, void *file_contents,
  32                   size_t file_length)
  33 {
  34   ElfW(Ehdr) *elf_header = (ElfW(Ehdr) *) file_contents;
  35   int ret;
  36
  37   if (elf_header->e_ident [EI_CLASS] == ELFCLASS32)
  38     return process_elf32_file (file_name, lib, flag, osversion, soname,
  39                                file_contents, file_length);
  40   else
  41     {
  42       switch (elf_header->e_machine)
  43         {
  44         case EM_IA_64:
  45         case EM_X86_64:
  46           break;
  47         default:
  48           error (0, 0, _("%s is for unknown machine %d.\n"),
  49                  file_name, elf_header->e_machine);
  50           return 1;
  51         }
  52
  53       ret = process_elf64_file (file_name, lib, flag, osversion, soname,
  54                                 file_contents, file_length);
  55       /* IA64/X86-64 64bit libraries are always libc.so.6+.  */
  56       if (!ret)
  57         switch (elf_header->e_machine)
  58           {
  59           case EM_IA_64:
  60             *flag = FLAG_IA64_LIB64|FLAG_ELF_LIBC6;
  61             break;
  62           case EM_X86_64:
  63             *flag = FLAG_X8664_LIB64|FLAG_ELF_LIBC6;
  64             break;
  65           }
  66
  67       return ret;
  68     }
  69 }
  70
  71 #undef __ELF_NATIVE_CLASS
  72 #undef process_elf_file
  73 #define process_elf_file process_elf32_file
  74 #define __ELF_NATIVE_CLASS 32
  75 #include "elf/readelflib.c"
  76
  77 #undef __ELF_NATIVE_CLASS
  78 #undef process_elf_file
  79 #define process_elf_file process_elf64_file
  80 #define __ELF_NATIVE_CLASS 64
  81 #include "elf/readelflib.c"