| 1 | /* BFD library support routines for the H8/500 architecture. |
| 2 | Copyright 1993, 1995, 2000, 2001 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | #include "bfd.h" |
| 22 | #include "sysdep.h" |
| 23 | #include "libbfd.h" |
| 24 | |
| 25 | static boolean scan_mach PARAMS ((const struct bfd_arch_info *, const char *)); |
| 26 | |
| 27 | #if 0 |
| 28 | /* |
| 29 | Relocations for the Z8K |
| 30 | |
| 31 | */ |
| 32 | static bfd_reloc_status_type |
| 33 | howto16_callback (abfd, reloc_entry, symbol_in, data, |
| 34 | ignore_input_section, ignore_bfd) |
| 35 | bfd *abfd; |
| 36 | arelent *reloc_entry; |
| 37 | struct symbol_cache_entry *symbol_in; |
| 38 | PTR data; |
| 39 | asection *ignore_input_section; |
| 40 | bfd *ignore_bfd; |
| 41 | { |
| 42 | long relocation = 0; |
| 43 | bfd_vma addr = reloc_entry->address; |
| 44 | long x = bfd_get_16 (abfd, (bfd_byte *)data + addr); |
| 45 | |
| 46 | HOWTO_PREPARE(relocation, symbol_in); |
| 47 | |
| 48 | x = (x + relocation + reloc_entry->addend); |
| 49 | |
| 50 | bfd_put_16 (abfd, x, (bfd_byte *)data + addr); |
| 51 | return bfd_reloc_ok; |
| 52 | } |
| 53 | |
| 54 | static bfd_reloc_status_type |
| 55 | howto8_callback (abfd, reloc_entry, symbol_in, data, |
| 56 | ignore_input_section, ignore_bfd) |
| 57 | bfd *abfd; |
| 58 | arelent *reloc_entry; |
| 59 | struct symbol_cache_entry *symbol_in; |
| 60 | PTR data; |
| 61 | asection *ignore_input_section; |
| 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 | static bfd_reloc_status_type |
| 77 | howto8_FFnn_callback (abfd, reloc_entry, symbol_in, data, |
| 78 | ignore_input_section, ignore_bfd) |
| 79 | bfd *abfd; |
| 80 | arelent *reloc_entry; |
| 81 | struct symbol_cache_entry *symbol_in; |
| 82 | PTR data; |
| 83 | asection *ignore_input_section; |
| 84 | bfd *ignore_bfd; |
| 85 | { |
| 86 | long relocation = 0; |
| 87 | bfd_vma addr = reloc_entry->address; |
| 88 | |
| 89 | long x = bfd_get_8 (abfd, (bfd_byte *)data + addr); |
| 90 | abort (); |
| 91 | HOWTO_PREPARE(relocation, symbol_in); |
| 92 | |
| 93 | x = (x + relocation + reloc_entry->addend); |
| 94 | |
| 95 | bfd_put_8 (abfd, x, (bfd_byte *)data + addr); |
| 96 | return bfd_reloc_ok; |
| 97 | } |
| 98 | |
| 99 | static bfd_reloc_status_type |
| 100 | howto8_pcrel_callback (abfd, reloc_entry, symbol_in, data, |
| 101 | ignore_input_section, ignore_bfd) |
| 102 | bfd *abfd; |
| 103 | arelent *reloc_entry; |
| 104 | struct symbol_cache_entry *symbol_in; |
| 105 | PTR data; |
| 106 | asection *ignore_input_section; |
| 107 | bfd *ignore_bfd; |
| 108 | { |
| 109 | long relocation = 0; |
| 110 | bfd_vma addr = reloc_entry->address; |
| 111 | long x = bfd_get_8 (abfd, (bfd_byte *)data + addr); |
| 112 | abort (); |
| 113 | HOWTO_PREPARE(relocation, symbol_in); |
| 114 | |
| 115 | x = (x + relocation + reloc_entry->addend); |
| 116 | |
| 117 | bfd_put_8 (abfd, x, (bfd_byte *)data + addr); |
| 118 | return bfd_reloc_ok; |
| 119 | } |
| 120 | |
| 121 | static reloc_howto_type howto_16 |
| 122 | = NEWHOWTO(howto16_callback,"abs16",1,false,false); |
| 123 | static reloc_howto_type howto_8 |
| 124 | = NEWHOWTO(howto8_callback,"abs8",0,false,false); |
| 125 | |
| 126 | static reloc_howto_type howto_8_FFnn |
| 127 | = NEWHOWTO(howto8_FFnn_callback,"ff00+abs8",0,false,false); |
| 128 | |
| 129 | static reloc_howto_type howto_8_pcrel |
| 130 | = NEWHOWTO(howto8_pcrel_callback,"pcrel8",0,false,true); |
| 131 | |
| 132 | static reloc_howto_type * |
| 133 | local_bfd_reloc_type_lookup (arch, code) |
| 134 | const struct bfd_arch_info *arch; |
| 135 | bfd_reloc_code_real_type code; |
| 136 | { |
| 137 | switch (code) { |
| 138 | case BFD_RELOC_16: |
| 139 | return &howto_16; |
| 140 | case BFD_RELOC_8_FFnn: |
| 141 | return &howto_8_FFnn; |
| 142 | case BFD_RELOC_8: |
| 143 | return &howto_8; |
| 144 | case BFD_RELOC_8_PCREL: |
| 145 | return &howto_8_pcrel; |
| 146 | } |
| 147 | return (reloc_howto_type *)NULL; |
| 148 | } |
| 149 | #endif |
| 150 | |
| 151 | static boolean |
| 152 | scan_mach (info, string) |
| 153 | const struct bfd_arch_info *info ATTRIBUTE_UNUSED; |
| 154 | const char *string; |
| 155 | { |
| 156 | if (strcmp(string,"h8/500") == 0) return true; |
| 157 | if (strcmp(string,"H8/500") == 0) return true; |
| 158 | if (strcmp(string,"h8500") == 0) return true; |
| 159 | if (strcmp(string,"H8500") == 0) return true; |
| 160 | return false; |
| 161 | } |
| 162 | |
| 163 | #if 0 /* not used currently */ |
| 164 | /* This routine is provided two arch_infos and returns whether |
| 165 | they'd be compatible */ |
| 166 | |
| 167 | static const bfd_arch_info_type * |
| 168 | compatible (a,b) |
| 169 | const bfd_arch_info_type *a; |
| 170 | const bfd_arch_info_type *b; |
| 171 | { |
| 172 | if (a->arch != b->arch || a->mach != b->mach) |
| 173 | return NULL; |
| 174 | return a; |
| 175 | } |
| 176 | #endif |
| 177 | |
| 178 | const bfd_arch_info_type bfd_h8500_arch = |
| 179 | { |
| 180 | 16, /* 16 bits in a word */ |
| 181 | 24, /* 24 bits in an address */ |
| 182 | 8, /* 8 bits in a byte */ |
| 183 | bfd_arch_h8500, |
| 184 | 0, /* only 1 machine */ |
| 185 | "h8500", /* arch_name */ |
| 186 | "h8500", /* printable name */ |
| 187 | 1, |
| 188 | true, /* the default machine */ |
| 189 | bfd_default_compatible, |
| 190 | scan_mach, |
| 191 | 0, |
| 192 | }; |