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  1. /* Generic support for 32-bit ELF
  2.    Copyright (C) 1993-2015 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
  19.    MA 02110-1301, USA.  */
  20.  
  21. #include "sysdep.h"
  22. #include "bfd.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
  45. elf_generic_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
  46.                            arelent *bfd_reloc,
  47.                            Elf_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED)
  48. {
  49.   bfd_reloc->howto = &dummy;
  50. }
  51.  
  52. static void
  53. elf_generic_info_to_howto_rel (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. check_for_relocs (bfd * abfd, asection * o, void * failed)
  62. {
  63.   if ((o->flags & SEC_RELOC) != 0)
  64.     {
  65.       Elf_Internal_Ehdr *ehdrp;
  66.  
  67.       ehdrp = elf_elfheader (abfd);
  68.       _bfd_error_handler (_("%B: Relocations in generic ELF (EM: %d)"),
  69.                           abfd, ehdrp->e_machine);
  70.  
  71.       bfd_set_error (bfd_error_wrong_format);
  72.       * (bfd_boolean *) failed = TRUE;
  73.     }
  74. }
  75.  
  76. static bfd_boolean
  77. elf32_generic_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
  78. {
  79.   bfd_boolean failed = FALSE;
  80.  
  81.   /* Check if there are any relocations.  */
  82.   bfd_map_over_sections (abfd, check_for_relocs, & failed);
  83.  
  84.   if (failed)
  85.     return FALSE;
  86.   return bfd_elf_link_add_symbols (abfd, info);
  87. }
  88.  
  89. #define TARGET_LITTLE_SYM               elf32_le_vec
  90. #define TARGET_LITTLE_NAME              "elf32-little"
  91. #define TARGET_BIG_SYM                  elf32_be_vec
  92. #define TARGET_BIG_NAME                 "elf32-big"
  93. #define ELF_ARCH                        bfd_arch_unknown
  94. #define ELF_MACHINE_CODE                EM_NONE
  95. #define ELF_MAXPAGESIZE                 0x1
  96. #define bfd_elf32_bfd_reloc_type_lookup bfd_default_reloc_type_lookup
  97. #define bfd_elf32_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
  98. #define bfd_elf32_bfd_link_add_symbols  elf32_generic_link_add_symbols
  99. #define elf_info_to_howto               elf_generic_info_to_howto
  100. #define elf_info_to_howto_rel           elf_generic_info_to_howto_rel
  101.  
  102. #include "elf32-target.h"
  103.