| 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 | |