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, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21
  22 int process_elf32_file (const char *file_name, const char *lib, int *flag,
  23                         unsigned int *osversion, char **soname,
  24                         void *file_contents, size_t file_length);
  25 int process_elf64_file (const char *file_name, const char *lib, int *flag,
  26                         unsigned int *osversion, char **soname,
  27                         void *file_contents, size_t file_length);
  28
  29 /* Returns 0 if everything is ok, != 0 in case of error.  */
  30 int
  31 process_elf_file (const char *file_name, const char *lib, int *flag,
  32                   unsigned int *osversion, char **soname, void *file_contents,
  33                   size_t file_length)
  34 {
  35   ElfW(Ehdr) *elf_header = (ElfW(Ehdr) *) file_contents;
  36   int ret;
  37
  38   if (elf_header->e_ident [EI_CLASS] == ELFCLASS32)
  39     return process_elf32_file (file_name, lib, flag, osversion, soname,
  40                                file_contents, file_length);
  41   else
  42     {
  43       switch (elf_header->e_machine)
  44         {
  45         case EM_IA_64:
  46         case EM_X86_64:
  47           break;
  48         default:
  49           error (0, 0, _("%s is for unknown machine %d.\n"),
  50                  file_name, elf_header->e_machine);
  51           return 1;
  52         }
  53
  54       ret = process_elf64_file (file_name, lib, flag, osversion, soname,
  55                                 file_contents, file_length);
  56       /* IA64/X86-64 64bit libraries are always libc.so.6+.  */
  57       if (!ret)
  58         switch (elf_header->e_machine)
  59           {
  60           case EM_IA_64:
  61             *flag = FLAG_IA64_LIB64|FLAG_ELF_LIBC6;
  62             break;
  63           case EM_X86_64:
  64             *flag = FLAG_X8664_LIB64|FLAG_ELF_LIBC6;
  65             break;
  66           }
  67
  68       return ret;
  69     }
  70 }
  71
  72 #undef __ELF_NATIVE_CLASS
  73 #undef process_elf_file
  74 #define process_elf_file process_elf32_file
  75 #define __ELF_NATIVE_CLASS 32
  76 #include "elf/readelflib.c"
  77
  78 #undef __ELF_NATIVE_CLASS
  79 #undef process_elf_file
  80 #define process_elf_file process_elf64_file
  81 #define __ELF_NATIVE_CLASS 64
  82 #include "elf/readelflib.c"