| 1 | /* BFD library support routines for the Z800n architecture. |
| 2 | Copyright 1992, 1993, 1994, 2000, 2001, 2002 |
| 3 | Free Software Foundation, Inc. |
| 4 | Hacked by Steve Chamberlain of Cygnus Support. |
| 5 | |
| 6 | This file is part of BFD, the Binary File Descriptor library. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 2 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 21 | |
| 22 | #include "bfd.h" |
| 23 | #include "sysdep.h" |
| 24 | #include "libbfd.h" |
| 25 | |
| 26 | static const bfd_arch_info_type *compatible |
| 27 | PARAMS ((const bfd_arch_info_type *, const bfd_arch_info_type *)); |
| 28 | |
| 29 | #if 0 /* not used currently */ |
| 30 | /* |
| 31 | Relocations for the Z8K |
| 32 | |
| 33 | */ |
| 34 | static bfd_reloc_status_type |
| 35 | howto16_callback (abfd, reloc_entry, symbol_in, data, |
| 36 | ignore_input_section, ignore_bfd) |
| 37 | bfd *abfd; |
| 38 | arelent *reloc_entry; |
| 39 | struct symbol_cache_entry *symbol_in; |
| 40 | PTR data; |
| 41 | asection *ignore_input_section; |
| 42 | bfd *ignore_bfd; |
| 43 | { |
| 44 | long relocation = 0; |
| 45 | bfd_vma addr = reloc_entry->address; |
| 46 | long x = bfd_get_16 (abfd, (bfd_byte *) data + addr); |
| 47 | |
| 48 | HOWTO_PREPARE (relocation, symbol_in); |
| 49 | |
| 50 | x = (x + relocation + reloc_entry->addend); |
| 51 | |
| 52 | bfd_put_16 (abfd, x, (bfd_byte *) data + addr); |
| 53 | return bfd_reloc_ok; |
| 54 | } |
| 55 | |
| 56 | static bfd_reloc_status_type |
| 57 | howto8_callback (abfd, reloc_entry, symbol_in, data, |
| 58 | ignore_input_section, ignore_bfd) |
| 59 | bfd *abfd; |
| 60 | arelent *reloc_entry; |
| 61 | struct symbol_cache_entry *symbol_in; |
| 62 | PTR data; |
| 63 | asection *ignore_input_section; |
| 64 | bfd *ignore_bfd; |
| 65 | { |
| 66 | long relocation = 0; |
| 67 | bfd_vma addr = reloc_entry->address; |
| 68 | long x = bfd_get_8 (abfd, (bfd_byte *) data + addr); |
| 69 | |
| 70 | HOWTO_PREPARE (relocation, symbol_in); |
| 71 | |
| 72 | x = (x + relocation + reloc_entry->addend); |
| 73 | |
| 74 | bfd_put_8 (abfd, x, (bfd_byte *) data + addr); |
| 75 | return bfd_reloc_ok; |
| 76 | } |
| 77 | |
| 78 | static bfd_reloc_status_type |
| 79 | howto8_FFnn_callback (abfd, reloc_entry, symbol_in, data, |
| 80 | ignore_input_section, ignore_bfd) |
| 81 | bfd *abfd; |
| 82 | arelent *reloc_entry; |
| 83 | struct symbol_cache_entry *symbol_in; |
| 84 | PTR data; |
| 85 | asection *ignore_input_section; |
| 86 | bfd *ignore_bfd; |
| 87 | { |
| 88 | long relocation = 0; |
| 89 | bfd_vma addr = reloc_entry->address; |
| 90 | |
| 91 | long x = bfd_get_8 (abfd, (bfd_byte *) data + addr); |
| 92 | abort (); |
| 93 | HOWTO_PREPARE (relocation, symbol_in); |
| 94 | |
| 95 | x = (x + relocation + reloc_entry->addend); |
| 96 | |
| 97 | bfd_put_8 (abfd, x, (bfd_byte *) data + addr); |
| 98 | return bfd_reloc_ok; |
| 99 | } |
| 100 | |
| 101 | static bfd_reloc_status_type |
| 102 | howto8_pcrel_callback (abfd, reloc_entry, symbol_in, data, |
| 103 | ignore_input_section, ignore_bfd) |
| 104 | bfd *abfd; |
| 105 | arelent *reloc_entry; |
| 106 | struct symbol_cache_entry *symbol_in; |
| 107 | PTR data; |
| 108 | asection *ignore_input_section; |
| 109 | bfd *ignore_bfd; |
| 110 | { |
| 111 | long relocation = 0; |
| 112 | bfd_vma addr = reloc_entry->address; |
| 113 | long x = bfd_get_8 (abfd, (bfd_byte *) data + addr); |
| 114 | abort (); |
| 115 | HOWTO_PREPARE (relocation, symbol_in); |
| 116 | |
| 117 | x = (x + relocation + reloc_entry->addend); |
| 118 | |
| 119 | bfd_put_8 (abfd, x, (bfd_byte *) data + addr); |
| 120 | return bfd_reloc_ok; |
| 121 | } |
| 122 | |
| 123 | static reloc_howto_type howto_16 |
| 124 | = NEWHOWTO (howto16_callback, "abs16", 1, FALSE, FALSE); |
| 125 | static reloc_howto_type howto_8 |
| 126 | = NEWHOWTO (howto8_callback, "abs8", 0, FALSE, FALSE); |
| 127 | |
| 128 | static reloc_howto_type howto_8_FFnn |
| 129 | = NEWHOWTO (howto8_FFnn_callback, "ff00+abs8", 0, FALSE, FALSE); |
| 130 | |
| 131 | static reloc_howto_type howto_8_pcrel |
| 132 | = NEWHOWTO (howto8_pcrel_callback, "pcrel8", 0, FALSE, TRUE); |
| 133 | |
| 134 | static reloc_howto_type * |
| 135 | local_bfd_reloc_type_lookup (arch, code) |
| 136 | const struct bfd_arch_info *arch; |
| 137 | bfd_reloc_code_real_type code; |
| 138 | { |
| 139 | switch (code) |
| 140 | { |
| 141 | case BFD_RELOC_16: |
| 142 | return &howto_16; |
| 143 | case BFD_RELOC_8_FFnn: |
| 144 | return &howto_8_FFnn; |
| 145 | case BFD_RELOC_8: |
| 146 | return &howto_8; |
| 147 | case BFD_RELOC_8_PCREL: |
| 148 | return &howto_8_pcrel; |
| 149 | default: |
| 150 | return (reloc_howto_type *) NULL; |
| 151 | } |
| 152 | } |
| 153 | #endif |
| 154 | |
| 155 | /* This routine is provided two arch_infos and returns whether |
| 156 | they'd be compatible */ |
| 157 | |
| 158 | static const bfd_arch_info_type * |
| 159 | compatible (a, b) |
| 160 | const bfd_arch_info_type *a; |
| 161 | const bfd_arch_info_type *b; |
| 162 | { |
| 163 | if (a->arch != b->arch || a->mach != b->mach) |
| 164 | return NULL; |
| 165 | return a; |
| 166 | } |
| 167 | |
| 168 | static const bfd_arch_info_type arch_info_struct[] = |
| 169 | { |
| 170 | { 32, 16, 8, bfd_arch_z8k, bfd_mach_z8002, "z8k", "z8002", 1, FALSE, |
| 171 | compatible, bfd_default_scan, 0 } |
| 172 | }; |
| 173 | |
| 174 | const bfd_arch_info_type bfd_z8k_arch = |
| 175 | { |
| 176 | 32, 32, 8, bfd_arch_z8k, bfd_mach_z8001, "z8k", "z8001", 1, TRUE, |
| 177 | compatible, bfd_default_scan, &arch_info_struct[0] |
| 178 | }; |