| 1 | /* BFD library support routines for the Z800n architecture. |
| 2 | Copyright (C) 1992 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 | |
| 26 | /* |
| 27 | Relocations for the Z8K |
| 28 | |
| 29 | */ |
| 30 | static bfd_reloc_status_type |
| 31 | DEFUN(howto16_callback,(abfd, reloc_entry, symbol_in, data, |
| 32 | ignore_input_section, ignore_bfd), |
| 33 | bfd *abfd AND |
| 34 | arelent *reloc_entry AND |
| 35 | struct symbol_cache_entry *symbol_in AND |
| 36 | PTR data AND |
| 37 | asection *ignore_input_section AND |
| 38 | bfd *ignore_bfd) |
| 39 | { |
| 40 | long relocation = 0; |
| 41 | bfd_vma addr = reloc_entry->address; |
| 42 | long x = bfd_get_16(abfd, (bfd_byte *)data + addr); |
| 43 | |
| 44 | HOWTO_PREPARE(relocation, symbol_in); |
| 45 | |
| 46 | x = (x + relocation + reloc_entry->addend); |
| 47 | |
| 48 | bfd_put_16(abfd, x, (bfd_byte *)data + addr); |
| 49 | return bfd_reloc_ok; |
| 50 | } |
| 51 | |
| 52 | |
| 53 | static bfd_reloc_status_type |
| 54 | DEFUN(howto8_callback,(abfd, reloc_entry, symbol_in, data, |
| 55 | ignore_input_section, ignore_bfd), |
| 56 | bfd *abfd AND |
| 57 | arelent *reloc_entry AND |
| 58 | struct symbol_cache_entry *symbol_in AND |
| 59 | PTR data AND |
| 60 | asection *ignore_input_section AND |
| 61 | bfd *ignore_bfd) |
| 62 | { |
| 63 | long relocation = 0; |
| 64 | bfd_vma addr = reloc_entry->address; |
| 65 | long x = bfd_get_8(abfd, (bfd_byte *)data + addr); |
| 66 | |
| 67 | HOWTO_PREPARE(relocation, symbol_in); |
| 68 | |
| 69 | x = (x + relocation + reloc_entry->addend); |
| 70 | |
| 71 | bfd_put_8(abfd, x, (bfd_byte *)data + addr); |
| 72 | return bfd_reloc_ok; |
| 73 | } |
| 74 | |
| 75 | |
| 76 | static bfd_reloc_status_type |
| 77 | DEFUN(howto8_FFnn_callback,(abfd, reloc_entry, symbol_in, data, |
| 78 | ignore_input_section, ignore_bfd), |
| 79 | bfd *abfd AND |
| 80 | arelent *reloc_entry AND |
| 81 | struct symbol_cache_entry *symbol_in AND |
| 82 | PTR data AND |
| 83 | asection *ignore_input_section AND |
| 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 | DEFUN(howto8_pcrel_callback,(abfd, reloc_entry, symbol_in, data, |
| 101 | ignore_input_section, ignore_bfd), |
| 102 | bfd *abfd AND |
| 103 | arelent *reloc_entry AND |
| 104 | struct symbol_cache_entry *symbol_in AND |
| 105 | PTR data AND |
| 106 | asection *ignore_input_section AND |
| 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 | |
| 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 | |
| 135 | static CONST struct reloc_howto_struct * |
| 136 | DEFUN(local_bfd_reloc_type_lookup,(arch, code), |
| 137 | CONST struct bfd_arch_info *arch AND |
| 138 | bfd_reloc_code_real_type code) |
| 139 | { |
| 140 | switch (code) { |
| 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 | } |
| 150 | return (reloc_howto_type *)NULL; |
| 151 | } |
| 152 | |
| 153 | int bfd_default_scan_num_mach(); |
| 154 | |
| 155 | static boolean |
| 156 | DEFUN(scan_mach,(info, string), |
| 157 | CONST struct bfd_arch_info *info AND |
| 158 | CONST char *string) |
| 159 | { |
| 160 | if (strcmp(string,"z8001") == 0 || strcmp(string,"z8k") == 0) |
| 161 | { |
| 162 | return bfd_mach_z8001 == info->mach; |
| 163 | } |
| 164 | if (strcmp(string,"z8002") == 0) |
| 165 | { |
| 166 | return bfd_mach_z8002 == info->mach; |
| 167 | } |
| 168 | return false; |
| 169 | } |
| 170 | |
| 171 | |
| 172 | /* This routine is provided two arch_infos and returns whether |
| 173 | they'd be compatible */ |
| 174 | |
| 175 | CONST bfd_arch_info_type * |
| 176 | DEFUN(compatible,(a,b), |
| 177 | CONST bfd_arch_info_type *a AND |
| 178 | CONST bfd_arch_info_type *b) |
| 179 | { |
| 180 | if (a->arch != b->arch || a->mach != b->mach) |
| 181 | return NULL; |
| 182 | return a; |
| 183 | } |
| 184 | |
| 185 | |
| 186 | static bfd_arch_info_type arch_info_struct[] = |
| 187 | { |
| 188 | { 32, 16, 8,bfd_arch_z8k, bfd_mach_z8002,"z8k","z8002",1,0,compatible,scan_mach,0,}, |
| 189 | { 32, 32, 8,bfd_arch_z8k, bfd_mach_z8001,"z8k","z8001",1,1,compatible,scan_mach,0,}, |
| 190 | }; |
| 191 | |
| 192 | |
| 193 | |
| 194 | void |
| 195 | DEFUN_VOID(bfd_z8k_arch) |
| 196 | { |
| 197 | bfd_arch_linkin(&arch_info_struct[0]); |
| 198 | bfd_arch_linkin(&arch_info_struct[1]); |
| 199 | } |
| 200 | |
| 201 | |