bfd/elf32-gen.c

   1 /* Generic support for 32-bit ELF
   2    Copyright 1993, 1995, 1998, 1999, 2001 Free Software Foundation, Inc.
   3
   4 This file is part of BFD, the Binary File Descriptor library.
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2 of the License, or
   9 (at your option) any later version.
  10
  11 This program 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
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20 #include "bfd.h"
  21 #include "sysdep.h"
  22 #include "libbfd.h"
  23 #include "elf-bfd.h"
  24
  25 /* This does not include any relocation information, but should be
  26    good enough for GDB or objdump to read the file.  */
  27
  28 static reloc_howto_type dummy =
  29   HOWTO (0,                     /* type */
  30          0,                     /* rightshift */
  31          0,                     /* size (0 = byte, 1 = short, 2 = long) */
  32          0,                     /* bitsize */
  33          false,                 /* pc_relative */
  34          0,                     /* bitpos */
  35          complain_overflow_dont, /* complain_on_overflow */
  36          NULL,                  /* special_function */
  37          "UNKNOWN",             /* name */
  38          false,                 /* partial_inplace */
  39          0,                     /* src_mask */
  40          0,                     /* dst_mask */
  41          false);                /* pcrel_offset */
  42
  43 static void elf_generic_info_to_howto
  44   PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
  45 static void elf_generic_info_to_howto_rel
  46   PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
  47 static boolean elf32_generic_link_add_symbols
  48   PARAMS ((bfd *, struct bfd_link_info *));
  49
  50 static void
  51 elf_generic_info_to_howto (abfd, bfd_reloc, elf_reloc)
  52      bfd *abfd ATTRIBUTE_UNUSED;
  53      arelent *bfd_reloc;
  54      Elf32_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED;
  55 {
  56   bfd_reloc->howto = &dummy;
  57 }
  58
  59 static void
  60 elf_generic_info_to_howto_rel (abfd, bfd_reloc, elf_reloc)
  61      bfd *abfd ATTRIBUTE_UNUSED;
  62      arelent *bfd_reloc;
  63      Elf32_Internal_Rel *elf_reloc ATTRIBUTE_UNUSED;
  64 {
  65   bfd_reloc->howto = &dummy;
  66 }
  67
  68 static boolean
  69 elf32_generic_link_add_symbols (abfd, info)
  70      bfd *abfd;
  71      struct bfd_link_info *info;
  72 {
  73   asection *o;
  74
  75   /* Check if there are any relocations.  */
  76   for (o = abfd->sections; o != NULL; o = o->next)
  77     if ((o->flags & SEC_RELOC) != 0)
  78       {
  79         Elf_Internal_Ehdr *ehdrp;
  80
  81         ehdrp = elf_elfheader (abfd);
  82         (*_bfd_error_handler) (_("%s: Relocations in generic ELF (EM: %d)"),
  83                                bfd_archive_filename (abfd),
  84                                ehdrp->e_machine);
  85
  86         bfd_set_error (bfd_error_wrong_format);
  87         return false;
  88       }
  89
  90   return bfd_elf32_bfd_link_add_symbols (abfd, info);
  91 }
  92
  93 #define TARGET_LITTLE_SYM               bfd_elf32_little_generic_vec
  94 #define TARGET_LITTLE_NAME              "elf32-little"
  95 #define TARGET_BIG_SYM                  bfd_elf32_big_generic_vec
  96 #define TARGET_BIG_NAME                 "elf32-big"
  97 #define ELF_ARCH                        bfd_arch_unknown
  98 #define ELF_MACHINE_CODE                EM_NONE
  99 #define ELF_MAXPAGESIZE                 0x1
 100 #define bfd_elf32_bfd_reloc_type_lookup bfd_default_reloc_type_lookup
 101 #define bfd_elf32_bfd_link_add_symbols  elf32_generic_link_add_symbols
 102 #define elf_info_to_howto               elf_generic_info_to_howto
 103 #define elf_info_to_howto_rel           elf_generic_info_to_howto_rel
 104
 105 #include "elf32-target.h"