bfd/elf32-mn10200.c

   1 /* Matsushita 10200 specific support for 32-bit ELF
   2    Copyright (C) 1996 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 static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
  26   PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
  27 static void mn10200_info_to_howto_rel
  28   PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
  29
  30 /* Try to minimize the amount of space occupied by relocation tables
  31    on the ROM (not that the ROM won't be swamped by other ELF overhead).  */
  32 #define USE_REL
  33
  34 enum reloc_type
  35 {
  36   R_MN10200_NONE = 0,
  37   R_MN10200_MAX
  38 };
  39
  40 static reloc_howto_type elf_mn10200_howto_table[] =
  41 {
  42   /* */
  43   HOWTO (R_MN10200_NONE,
  44          0,
  45          2,
  46          16,
  47          false,
  48          0,
  49          complain_overflow_bitfield,
  50          bfd_elf_generic_reloc,
  51          "R_MN10200_NONE",
  52          false,
  53          0,
  54          0,
  55          false),
  56 };
  57
  58 struct mn10200_reloc_map
  59 {
  60   unsigned char bfd_reloc_val;
  61   unsigned char elf_reloc_val;
  62 };
  63
  64 static const struct mn10200_reloc_map mn10200_reloc_map[] =
  65 {
  66   { BFD_RELOC_NONE, R_MN10200_NONE, },
  67 };
  68
  69 static reloc_howto_type *
  70 bfd_elf32_bfd_reloc_type_lookup (abfd, code)
  71      bfd *abfd;
  72      bfd_reloc_code_real_type code;
  73 {
  74   unsigned int i;
  75
  76   for (i = 0;
  77        i < sizeof (mn10200_reloc_map) / sizeof (struct mn10200_reloc_map);
  78        i++)
  79     {
  80       if (mn10200_reloc_map[i].bfd_reloc_val == code)
  81         return &elf_mn10200_howto_table[mn10200_reloc_map[i].elf_reloc_val];
  82     }
  83
  84   return NULL;
  85 }
  86
  87 /* Set the howto pointer for an V850 ELF reloc.  */
  88
  89 static void
  90 mn10200_info_to_howto_rel (abfd, cache_ptr, dst)
  91      bfd *abfd;
  92      arelent *cache_ptr;
  93      Elf32_Internal_Rel *dst;
  94 {
  95   unsigned int r_type;
  96
  97   r_type = ELF32_R_TYPE (dst->r_info);
  98   BFD_ASSERT (r_type < (unsigned int) R_MN10200_MAX);
  99   cache_ptr->howto = &elf_mn10200_howto_table[r_type];
 100 }
 101
 102 #define TARGET_LITTLE_SYM       bfd_elf32_mn10200_vec
 103 #define TARGET_LITTLE_NAME      "elf32-mn10200"
 104 #define ELF_ARCH                bfd_arch_mn10200
 105 #define ELF_MACHINE_CODE        EM_CYGNUS_MN10200
 106 #define ELF_MAXPAGESIZE         0x1000
 107
 108 #define elf_info_to_howto       0
 109 #define elf_info_to_howto_rel   mn10200_info_to_howto_rel
 110
 111 #include "elf32-target.h"