bfd/cpu-h8500.c

   1 /* BFD library support routines for the H8/500 architecture.
   2    Copyright (C) 1993 Free Software Foundation, Inc.
   3    Hacked by Steve Chamberlain of Cygnus Support.
   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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21 #include "bfd.h"
  22 #include "sysdep.h"
  23 #include "libbfd.h"
  24
  25 #if 0
  26
  27 /*
  28 Relocations for the Z8K
  29
  30 */
  31 static bfd_reloc_status_type
  32 DEFUN(howto16_callback,(abfd, reloc_entry, symbol_in, data,
  33                         ignore_input_section, ignore_bfd),
  34       bfd *abfd AND
  35       arelent *reloc_entry AND
  36       struct symbol_cache_entry *symbol_in AND
  37       PTR data AND
  38       asection *ignore_input_section AND
  39       bfd *ignore_bfd)
  40 {
  41   long relocation = 0;
  42   bfd_vma addr = reloc_entry->address;
  43   long x = bfd_get_16(abfd, (bfd_byte *)data + addr);
  44
  45   HOWTO_PREPARE(relocation, symbol_in);
  46
  47   x = (x + relocation + reloc_entry->addend);
  48
  49   bfd_put_16(abfd, x, (bfd_byte *)data + addr);
  50   return bfd_reloc_ok;
  51 }
  52
  53
  54 static bfd_reloc_status_type
  55 DEFUN(howto8_callback,(abfd, reloc_entry, symbol_in, data,
  56                        ignore_input_section, ignore_bfd),
  57       bfd *abfd AND
  58       arelent *reloc_entry AND
  59       struct symbol_cache_entry *symbol_in AND
  60       PTR data AND
  61       asection *ignore_input_section AND
  62       bfd *ignore_bfd)
  63 {
  64   long relocation = 0;
  65   bfd_vma addr = reloc_entry->address;
  66   long x = bfd_get_8(abfd, (bfd_byte *)data + addr);
  67
  68   HOWTO_PREPARE(relocation, symbol_in);
  69
  70   x = (x + relocation + reloc_entry->addend);
  71
  72   bfd_put_8(abfd, x, (bfd_byte *)data + addr);
  73   return bfd_reloc_ok;
  74 }
  75
  76
  77 static bfd_reloc_status_type
  78 DEFUN(howto8_FFnn_callback,(abfd, reloc_entry, symbol_in, data,
  79                             ignore_input_section, ignore_bfd),
  80       bfd *abfd AND
  81       arelent *reloc_entry AND
  82       struct symbol_cache_entry *symbol_in AND
  83       PTR data AND
  84       asection *ignore_input_section AND
  85       bfd *ignore_bfd)
  86 {
  87   long relocation = 0;
  88   bfd_vma addr = reloc_entry->address;
  89
  90   long x = bfd_get_8(abfd, (bfd_byte *)data + addr);
  91   abort();
  92   HOWTO_PREPARE(relocation, symbol_in);
  93
  94   x = (x + relocation + reloc_entry->addend);
  95
  96   bfd_put_8(abfd, x, (bfd_byte *)data + addr);
  97   return bfd_reloc_ok;
  98 }
  99
 100 static bfd_reloc_status_type
 101 DEFUN(howto8_pcrel_callback,(abfd, reloc_entry, symbol_in, data,
 102                              ignore_input_section, ignore_bfd),
 103       bfd *abfd AND
 104       arelent *reloc_entry AND
 105       struct symbol_cache_entry *symbol_in AND
 106       PTR data AND
 107       asection *ignore_input_section AND
 108       bfd *ignore_bfd)
 109 {
 110   long relocation = 0;
 111   bfd_vma addr = reloc_entry->address;
 112   long x = bfd_get_8(abfd, (bfd_byte *)data + addr);
 113   abort();
 114   HOWTO_PREPARE(relocation, symbol_in);
 115
 116   x = (x + relocation + reloc_entry->addend);
 117
 118   bfd_put_8(abfd, x, (bfd_byte *)data + addr);
 119   return bfd_reloc_ok;
 120 }
 121
 122
 123
 124 static reloc_howto_type howto_16
 125   = NEWHOWTO(howto16_callback,"abs16",1,false,false);
 126 static reloc_howto_type howto_8
 127   = NEWHOWTO(howto8_callback,"abs8",0,false,false);
 128
 129 static reloc_howto_type howto_8_FFnn
 130   = NEWHOWTO(howto8_FFnn_callback,"ff00+abs8",0,false,false);
 131
 132 static reloc_howto_type howto_8_pcrel
 133   = NEWHOWTO(howto8_pcrel_callback,"pcrel8",0,false,true);
 134
 135
 136 static CONST struct reloc_howto_struct *
 137 DEFUN(local_bfd_reloc_type_lookup,(arch, code),
 138  CONST struct bfd_arch_info *arch AND
 139  bfd_reloc_code_real_type code)
 140 {
 141   switch (code) {
 142   case BFD_RELOC_16:
 143     return &howto_16;
 144   case BFD_RELOC_8_FFnn:
 145     return &howto_8_FFnn;
 146   case BFD_RELOC_8:
 147     return &howto_8;
 148   case BFD_RELOC_8_PCREL:
 149     return &howto_8_pcrel;
 150   }
 151   return (reloc_howto_type *)NULL;
 152 }
 153 #endif
 154
 155 int bfd_default_scan_num_mach();
 156
 157 static boolean
 158 DEFUN(scan_mach,(info, string),
 159 CONST struct bfd_arch_info *info AND
 160 CONST char *string)
 161 {
 162   if (strcmp(string,"h8/500") == 0) return true;
 163   if (strcmp(string,"H8/500") == 0) return true;
 164   if (strcmp(string,"h8500") == 0) return true;
 165   if (strcmp(string,"H8500") == 0) return true;
 166 }
 167
 168
 169 /* This routine is provided two arch_infos and returns whether
 170    they'd be compatible */
 171
 172 static CONST bfd_arch_info_type *
 173 DEFUN(compatible,(a,b),
 174       CONST bfd_arch_info_type *a AND
 175       CONST bfd_arch_info_type *b)
 176 {
 177   if (a->arch != b->arch || a->mach != b->mach)
 178    return NULL;
 179   return a;
 180 }
 181
 182
 183 static bfd_arch_info_type arch_info_struct[] =
 184 {
 185   16,                           /* 16 bits in a word */
 186   24,                           /* 24 bits in an address */
 187   8,                            /* 8 bits in a byte */
 188   bfd_arch_h8500,
 189   0,                            /* only 1 machine */
 190   "H8/500",                     /* arch_name  */
 191   "H8/500",                     /* printable name */
 192   1,
 193   true,                         /* the default machine */
 194   bfd_default_compatible,
 195   scan_mach,
 196   0,
 197   0,
 198 };
 199
 200
 201
 202 void
 203 DEFUN_VOID(bfd_h8500_arch)
 204 {
 205   bfd_arch_linkin(&arch_info_struct[0]);
 206 }
 207
 208