| 1 | /* BFD library support routines for the Renesas H8/300 architecture. |
| 2 | Copyright (C) 1990-2017 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 3 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., 51 Franklin Street - Fifth Floor, Boston, |
| 20 | MA 02110-1301, USA. */ |
| 21 | |
| 22 | #include "sysdep.h" |
| 23 | #include "bfd.h" |
| 24 | #include "libbfd.h" |
| 25 | |
| 26 | static bfd_boolean |
| 27 | h8300_scan (const struct bfd_arch_info *info, const char *string) |
| 28 | { |
| 29 | if (*string != 'h' && *string != 'H') |
| 30 | return FALSE; |
| 31 | |
| 32 | string++; |
| 33 | if (*string != '8') |
| 34 | return FALSE; |
| 35 | |
| 36 | string++; |
| 37 | if (*string == '/') |
| 38 | string++; |
| 39 | |
| 40 | if (*string != '3') |
| 41 | return FALSE; |
| 42 | string++; |
| 43 | if (*string != '0') |
| 44 | return FALSE; |
| 45 | string++; |
| 46 | if (*string != '0') |
| 47 | return FALSE; |
| 48 | string++; |
| 49 | if (*string == '-') |
| 50 | string++; |
| 51 | |
| 52 | /* In ELF linker scripts, we typically express the architecture/machine |
| 53 | as architecture:machine. |
| 54 | |
| 55 | So if we've matched so far and encounter a colon, try to match the |
| 56 | string following the colon. */ |
| 57 | if (*string == ':') |
| 58 | { |
| 59 | string++; |
| 60 | return h8300_scan (info, string); |
| 61 | } |
| 62 | |
| 63 | if (*string == 'h' || *string == 'H') |
| 64 | { |
| 65 | string++; |
| 66 | if (*string == 'n' || *string == 'N') |
| 67 | return (info->mach == bfd_mach_h8300hn); |
| 68 | |
| 69 | return (info->mach == bfd_mach_h8300h); |
| 70 | } |
| 71 | else if (*string == 's' || *string == 'S') |
| 72 | { |
| 73 | string++; |
| 74 | if (*string == 'n' || *string == 'N') |
| 75 | return (info->mach == bfd_mach_h8300sn); |
| 76 | |
| 77 | if (*string == 'x' || *string == 'X') |
| 78 | { |
| 79 | string++; |
| 80 | if (*string == 'n' || *string == 'N') |
| 81 | return (info->mach == bfd_mach_h8300sxn); |
| 82 | |
| 83 | return (info->mach == bfd_mach_h8300sx); |
| 84 | } |
| 85 | |
| 86 | return (info->mach == bfd_mach_h8300s); |
| 87 | } |
| 88 | else |
| 89 | return info->mach == bfd_mach_h8300; |
| 90 | } |
| 91 | |
| 92 | /* This routine is provided two arch_infos and works out the machine |
| 93 | which would be compatible with both and returns a pointer to its |
| 94 | info structure. */ |
| 95 | |
| 96 | static const bfd_arch_info_type * |
| 97 | compatible (const bfd_arch_info_type *in, const bfd_arch_info_type *out) |
| 98 | { |
| 99 | if (in->arch != out->arch) |
| 100 | return 0; |
| 101 | if (in->mach == bfd_mach_h8300sx && out->mach == bfd_mach_h8300s) |
| 102 | return in; |
| 103 | if (in->mach == bfd_mach_h8300s && out->mach == bfd_mach_h8300sx) |
| 104 | return out; |
| 105 | if (in->mach == bfd_mach_h8300sxn && out->mach == bfd_mach_h8300sn) |
| 106 | return in; |
| 107 | if (in->mach == bfd_mach_h8300sn && out->mach == bfd_mach_h8300sxn) |
| 108 | return out; |
| 109 | /* It's really not a good idea to mix and match modes. */ |
| 110 | if (in->mach != out->mach) |
| 111 | return 0; |
| 112 | else |
| 113 | return in; |
| 114 | } |
| 115 | |
| 116 | static const bfd_arch_info_type h8300sxn_info_struct = |
| 117 | { |
| 118 | 32, /* 32 bits in a word */ |
| 119 | 16, /* 16 bits in an address */ |
| 120 | 8, /* 8 bits in a byte */ |
| 121 | bfd_arch_h8300, |
| 122 | bfd_mach_h8300sxn, |
| 123 | "h8300sxn", /* arch_name */ |
| 124 | "h8300sxn", /* printable name */ |
| 125 | 1, |
| 126 | FALSE, /* the default machine */ |
| 127 | compatible, |
| 128 | h8300_scan, |
| 129 | bfd_arch_default_fill, |
| 130 | 0 |
| 131 | }; |
| 132 | |
| 133 | static const bfd_arch_info_type h8300sx_info_struct = |
| 134 | { |
| 135 | 32, /* 32 bits in a word */ |
| 136 | 32, /* 32 bits in an address */ |
| 137 | 8, /* 8 bits in a byte */ |
| 138 | bfd_arch_h8300, |
| 139 | bfd_mach_h8300sx, |
| 140 | "h8300sx", /* arch_name */ |
| 141 | "h8300sx", /* printable name */ |
| 142 | 1, |
| 143 | FALSE, /* the default machine */ |
| 144 | compatible, |
| 145 | h8300_scan, |
| 146 | bfd_arch_default_fill, |
| 147 | &h8300sxn_info_struct |
| 148 | }; |
| 149 | |
| 150 | static const bfd_arch_info_type h8300sn_info_struct = |
| 151 | { |
| 152 | 32, /* 32 bits in a word. */ |
| 153 | 16, /* 16 bits in an address. */ |
| 154 | 8, /* 8 bits in a byte. */ |
| 155 | bfd_arch_h8300, |
| 156 | bfd_mach_h8300sn, |
| 157 | "h8300sn", /* Architecture name. */ |
| 158 | "h8300sn", /* Printable name. */ |
| 159 | 1, |
| 160 | FALSE, /* The default machine. */ |
| 161 | compatible, |
| 162 | h8300_scan, |
| 163 | bfd_arch_default_fill, |
| 164 | &h8300sx_info_struct |
| 165 | }; |
| 166 | |
| 167 | static const bfd_arch_info_type h8300hn_info_struct = |
| 168 | { |
| 169 | 32, /* 32 bits in a word. */ |
| 170 | 16, /* 16 bits in an address. */ |
| 171 | 8, /* 8 bits in a byte. */ |
| 172 | bfd_arch_h8300, |
| 173 | bfd_mach_h8300hn, |
| 174 | "h8300hn", /* Architecture name. */ |
| 175 | "h8300hn", /* Printable name. */ |
| 176 | 1, |
| 177 | FALSE, /* The default machine. */ |
| 178 | compatible, |
| 179 | h8300_scan, |
| 180 | bfd_arch_default_fill, |
| 181 | &h8300sn_info_struct |
| 182 | }; |
| 183 | |
| 184 | static const bfd_arch_info_type h8300s_info_struct = |
| 185 | { |
| 186 | 32, /* 32 bits in a word. */ |
| 187 | 32, /* 32 bits in an address. */ |
| 188 | 8, /* 8 bits in a byte. */ |
| 189 | bfd_arch_h8300, |
| 190 | bfd_mach_h8300s, |
| 191 | "h8300s", /* Architecture name. */ |
| 192 | "h8300s", /* Printable name. */ |
| 193 | 1, |
| 194 | FALSE, /* The default machine. */ |
| 195 | compatible, |
| 196 | h8300_scan, |
| 197 | bfd_arch_default_fill, |
| 198 | & h8300hn_info_struct |
| 199 | }; |
| 200 | |
| 201 | static const bfd_arch_info_type h8300h_info_struct = |
| 202 | { |
| 203 | 32, /* 32 bits in a word. */ |
| 204 | 32, /* 32 bits in an address. */ |
| 205 | 8, /* 8 bits in a byte. */ |
| 206 | bfd_arch_h8300, |
| 207 | bfd_mach_h8300h, |
| 208 | "h8300h", /* Architecture name. */ |
| 209 | "h8300h", /* Printable name. */ |
| 210 | 1, |
| 211 | FALSE, /* The default machine. */ |
| 212 | compatible, |
| 213 | h8300_scan, |
| 214 | bfd_arch_default_fill, |
| 215 | &h8300s_info_struct |
| 216 | }; |
| 217 | |
| 218 | const bfd_arch_info_type bfd_h8300_arch = |
| 219 | { |
| 220 | 16, /* 16 bits in a word. */ |
| 221 | 16, /* 16 bits in an address. */ |
| 222 | 8, /* 8 bits in a byte. */ |
| 223 | bfd_arch_h8300, |
| 224 | bfd_mach_h8300, |
| 225 | "h8300", /* Architecture name. */ |
| 226 | "h8300", /* Printable name. */ |
| 227 | 1, |
| 228 | TRUE, /* The default machine. */ |
| 229 | compatible, |
| 230 | h8300_scan, |
| 231 | bfd_arch_default_fill, |
| 232 | &h8300h_info_struct |
| 233 | }; |
| 234 | |
| 235 | /* Pad the given address to 32 bits, converting 16-bit and 24-bit |
| 236 | addresses into the values they would have had on a h8s target. */ |
| 237 | |
| 238 | bfd_vma |
| 239 | bfd_h8300_pad_address (bfd *abfd, bfd_vma address) |
| 240 | { |
| 241 | /* Cope with bfd_vma's larger than 32 bits. */ |
| 242 | address &= 0xffffffffu; |
| 243 | |
| 244 | switch (bfd_get_mach (abfd)) |
| 245 | { |
| 246 | case bfd_mach_h8300: |
| 247 | case bfd_mach_h8300hn: |
| 248 | case bfd_mach_h8300sn: |
| 249 | case bfd_mach_h8300sxn: |
| 250 | /* Sign extend a 16-bit address. */ |
| 251 | if (address >= 0x8000) |
| 252 | return address | 0xffff0000u; |
| 253 | return address; |
| 254 | |
| 255 | case bfd_mach_h8300h: |
| 256 | /* Sign extend a 24-bit address. */ |
| 257 | if (address >= 0x800000) |
| 258 | return address | 0xff000000u; |
| 259 | return address; |
| 260 | |
| 261 | case bfd_mach_h8300s: |
| 262 | case bfd_mach_h8300sx: |
| 263 | return address; |
| 264 | |
| 265 | default: |
| 266 | abort (); |
| 267 | } |
| 268 | } |