bfd/elf32-gen.c

   1 /* Generic support for 32-bit ELF
   2    Copyright 1993, 1995, 1998, 1999, 2001, 2002, 2004
   3    Free Software Foundation, Inc.
   4
   5 This file is part of BFD, the Binary File Descriptor library.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  20
  21 #include "bfd.h"
  22 #include "sysdep.h"
  23 #include "libbfd.h"
  24 #include "elf-bfd.h"
  25
  26 /* This does not include any relocation information, but should be
  27    good enough for GDB or objdump to read the file.  */
  28
  29 static reloc_howto_type dummy =
  30   HOWTO (0,                     /* type */
  31          0,                     /* rightshift */
  32          0,                     /* size (0 = byte, 1 = short, 2 = long) */
  33          0,                     /* bitsize */
  34          FALSE,                 /* pc_relative */
  35          0,                     /* bitpos */
  36          complain_overflow_dont, /* complain_on_overflow */
  37          NULL,                  /* special_function */
  38          "UNKNOWN",             /* name */
  39          FALSE,                 /* partial_inplace */
  40          0,                     /* src_mask */
  41          0,                     /* dst_mask */
  42          FALSE);                /* pcrel_offset */
  43
  44 static void elf_generic_info_to_howto
  45   PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
  46 static void elf_generic_info_to_howto_rel
  47   PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
  48 static bfd_boolean elf32_generic_link_add_symbols
  49   PARAMS ((bfd *, struct bfd_link_info *));
  50
  51 static void
  52 elf_generic_info_to_howto (abfd, bfd_reloc, elf_reloc)
  53      bfd *abfd ATTRIBUTE_UNUSED;
  54      arelent *bfd_reloc;
  55      Elf_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED;
  56 {
  57   bfd_reloc->howto = &dummy;
  58 }
  59
  60 static void
  61 elf_generic_info_to_howto_rel (abfd, bfd_reloc, elf_reloc)
  62      bfd *abfd ATTRIBUTE_UNUSED;
  63      arelent *bfd_reloc;
  64      Elf_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED;
  65 {
  66   bfd_reloc->howto = &dummy;
  67 }
  68
  69 static bfd_boolean
  70 elf32_generic_link_add_symbols (abfd, info)
  71      bfd *abfd;
  72      struct bfd_link_info *info;
  73 {
  74   asection *o;
  75
  76   /* Check if there are any relocations.  */
  77   for (o = abfd->sections; o != NULL; o = o->next)
  78     if ((o->flags & SEC_RELOC) != 0)
  79       {
  80         Elf_Internal_Ehdr *ehdrp;
  81
  82         ehdrp = elf_elfheader (abfd);
  83         (*_bfd_error_handler) (_("%B: Relocations in generic ELF (EM: %d)"),
  84                                abfd,
  85                                ehdrp->e_machine);
  86
  87         bfd_set_error (bfd_error_wrong_format);
  88         return FALSE;
  89       }
  90
  91   return bfd_elf_link_add_symbols (abfd, info);
  92 }
  93
  94 #define TARGET_LITTLE_SYM               bfd_elf32_little_generic_vec
  95 #define TARGET_LITTLE_NAME              "elf32-little"
  96 #define TARGET_BIG_SYM                  bfd_elf32_big_generic_vec
  97 #define TARGET_BIG_NAME                 "elf32-big"
  98 #define ELF_ARCH                        bfd_arch_unknown
  99 #define ELF_MACHINE_CODE                EM_NONE
 100 #define ELF_MAXPAGESIZE                 0x1
 101 #define bfd_elf32_bfd_reloc_type_lookup bfd_default_reloc_type_lookup
 102 #define bfd_elf32_bfd_link_add_symbols  elf32_generic_link_add_symbols
 103 #define elf_info_to_howto               elf_generic_info_to_howto
 104 #define elf_info_to_howto_rel           elf_generic_info_to_howto_rel
 105
 106 #include "elf32-target.h"