| 1 | /* CR16C ELF support for BFD. |
| 2 | Copyright 2004, 2008 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of BFD, the Binary File Descriptor library. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software Foundation, |
| 18 | Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 19 | |
| 20 | #ifndef _ELF_CR16C_H |
| 21 | #define _ELF_CR16C_H |
| 22 | |
| 23 | #include "bfd.h" |
| 24 | #include "elf/reloc-macros.h" |
| 25 | |
| 26 | /* Creating indices for reloc_map_index array. */ |
| 27 | START_RELOC_NUMBERS (elf_cr16c_reloc_type) |
| 28 | RELOC_NUMBER (RINDEX_16C_NUM08, 0) |
| 29 | RELOC_NUMBER (RINDEX_16C_NUM08_C, 1) |
| 30 | RELOC_NUMBER (RINDEX_16C_NUM16, 2) |
| 31 | RELOC_NUMBER (RINDEX_16C_NUM16_C, 3) |
| 32 | RELOC_NUMBER (RINDEX_16C_NUM32, 4) |
| 33 | RELOC_NUMBER (RINDEX_16C_NUM32_C, 5) |
| 34 | RELOC_NUMBER (RINDEX_16C_DISP04, 6) |
| 35 | RELOC_NUMBER (RINDEX_16C_DISP04_C, 7) |
| 36 | RELOC_NUMBER (RINDEX_16C_DISP08, 8) |
| 37 | RELOC_NUMBER (RINDEX_16C_DISP08_C, 9) |
| 38 | RELOC_NUMBER (RINDEX_16C_DISP16, 10) |
| 39 | RELOC_NUMBER (RINDEX_16C_DISP16_C, 11) |
| 40 | RELOC_NUMBER (RINDEX_16C_DISP24, 12) |
| 41 | RELOC_NUMBER (RINDEX_16C_DISP24_C, 13) |
| 42 | RELOC_NUMBER (RINDEX_16C_DISP24a, 14) |
| 43 | RELOC_NUMBER (RINDEX_16C_DISP24a_C, 15) |
| 44 | RELOC_NUMBER (RINDEX_16C_REG04, 16) |
| 45 | RELOC_NUMBER (RINDEX_16C_REG04_C, 17) |
| 46 | RELOC_NUMBER (RINDEX_16C_REG04a, 18) |
| 47 | RELOC_NUMBER (RINDEX_16C_REG04a_C, 19) |
| 48 | RELOC_NUMBER (RINDEX_16C_REG14, 20) |
| 49 | RELOC_NUMBER (RINDEX_16C_REG14_C, 21) |
| 50 | RELOC_NUMBER (RINDEX_16C_REG16, 22) |
| 51 | RELOC_NUMBER (RINDEX_16C_REG16_C, 23) |
| 52 | RELOC_NUMBER (RINDEX_16C_REG20, 24) |
| 53 | RELOC_NUMBER (RINDEX_16C_REG20_C, 25) |
| 54 | RELOC_NUMBER (RINDEX_16C_ABS20, 26) |
| 55 | RELOC_NUMBER (RINDEX_16C_ABS20_C, 27) |
| 56 | RELOC_NUMBER (RINDEX_16C_ABS24, 28) |
| 57 | RELOC_NUMBER (RINDEX_16C_ABS24_C, 29) |
| 58 | RELOC_NUMBER (RINDEX_16C_IMM04, 30) |
| 59 | RELOC_NUMBER (RINDEX_16C_IMM04_C, 31) |
| 60 | RELOC_NUMBER (RINDEX_16C_IMM16, 32) |
| 61 | RELOC_NUMBER (RINDEX_16C_IMM16_C, 33) |
| 62 | RELOC_NUMBER (RINDEX_16C_IMM20, 34) |
| 63 | RELOC_NUMBER (RINDEX_16C_IMM20_C, 35) |
| 64 | RELOC_NUMBER (RINDEX_16C_IMM24, 36) |
| 65 | RELOC_NUMBER (RINDEX_16C_IMM24_C, 37) |
| 66 | RELOC_NUMBER (RINDEX_16C_IMM32, 38) |
| 67 | RELOC_NUMBER (RINDEX_16C_IMM32_C, 39) |
| 68 | END_RELOC_NUMBERS (RINDEX_16C_MAX) |
| 69 | |
| 70 | /* CR16C Relocation Types ('cr_reloc_type' entry in the reloc_map structure). |
| 71 | The relocation constant name is determined as follows : |
| 72 | |
| 73 | R_16C_<format><size>[_C] |
| 74 | |
| 75 | Where : |
| 76 | |
| 77 | <format> is one of the following: |
| 78 | NUM - R_NUMBER mnemonic, |
| 79 | DISP - R_16C_DISPL mnemonic, |
| 80 | REG - R_16C_REGREL mnemonic, |
| 81 | ABS - R_16C_ABS mnemonic, |
| 82 | IMM - R_16C_IMMED mnemonic, |
| 83 | <size> stands for R_S_16C_<size> |
| 84 | _C means 'code label' and is only added when R_ADDRTYPE subfield |
| 85 | is of type R_CODE_ADDR. */ |
| 86 | |
| 87 | /* The table below shows what the hex digits in the definition of the |
| 88 | relocation type constants correspond to. |
| 89 | ------------------------------------------------------------------ |
| 90 | R_SIZESP R_FORMAT R_RELTO R_ADDRTYPE |
| 91 | ------------------------------------------------------------------ */ |
| 92 | /* R_S_16C_08 R_NUMBER R_ABS R_ADDRESS */ |
| 93 | #define R_16C_NUM08 0X0001 |
| 94 | |
| 95 | /* R_S_16C_08 R_NUMBER R_ABS R_CODE_ADDR */ |
| 96 | #define R_16C_NUM08_C 0X0006 |
| 97 | |
| 98 | /* R_S_16C_16 R_NUMBER R_ABS R_ADDRESS */ |
| 99 | #define R_16C_NUM16 0X1001 |
| 100 | |
| 101 | /* R_S_16C_16 R_NUMBER R_ABS R_CODE_ADDR */ |
| 102 | #define R_16C_NUM16_C 0X1006 |
| 103 | |
| 104 | /* R_S_16C_32 R_NUMBER R_ABS R_ADDRESS */ |
| 105 | #define R_16C_NUM32 0X2001 |
| 106 | |
| 107 | /* R_S_16C_32 R_NUMBER R_ABS R_CODE_ADDR */ |
| 108 | #define R_16C_NUM32_C 0X2006 |
| 109 | |
| 110 | /* R_S_16C_04 R_16C_DISPL R_PCREL R_ADDRESS */ |
| 111 | #define R_16C_DISP04 0X5411 |
| 112 | |
| 113 | /* R_S_16C_04 R_16C_DISPL R_PCREL R_CODE_ADDR */ |
| 114 | #define R_16C_DISP04_C 0X5416 |
| 115 | |
| 116 | /* R_S_16C_08 R_16C_DISPL R_PCREL R_ADDRESS */ |
| 117 | #define R_16C_DISP08 0X0411 |
| 118 | |
| 119 | /* R_S_16C_08 R_16C_DISPL R_PCREL R_CODE_ADDR */ |
| 120 | #define R_16C_DISP08_C 0X0416 |
| 121 | |
| 122 | /* R_S_16C_16 R_16C_DISPL R_PCREL R_ADDRESS */ |
| 123 | #define R_16C_DISP16 0X1411 |
| 124 | |
| 125 | /* R_S_16C_16 R_16C_DISPL R_PCREL R_CODE_ADDR */ |
| 126 | #define R_16C_DISP16_C 0X1416 |
| 127 | |
| 128 | /* R_S_16C_24 R_16C_DISPL R_PCREL R_ADDRESS */ |
| 129 | #define R_16C_DISP24 0X7411 |
| 130 | |
| 131 | /* R_S_16C_24 R_16C_DISPL R_PCREL R_CODE_ADDR */ |
| 132 | #define R_16C_DISP24_C 0X7416 |
| 133 | |
| 134 | /* R_S_16C_24a R_16C_DISPL R_PCREL R_ADDRESS */ |
| 135 | #define R_16C_DISP24a 0X6411 |
| 136 | |
| 137 | /* R_S_16C_24a R_16C_DISPL R_PCREL R_CODE_ADDR */ |
| 138 | #define R_16C_DISP24a_C 0X6416 |
| 139 | |
| 140 | /* R_S_16C_04 R_16C_REGREL R_ABS R_ADDRESS */ |
| 141 | #define R_16C_REG04 0X5201 |
| 142 | |
| 143 | /* R_S_16C_04 R_16C_REGREL R_ABS R_CODE_ADDR */ |
| 144 | #define R_16C_REG04_C 0X5206 |
| 145 | |
| 146 | /* R_S_16C_04_a R_16C_REGREL R_ABS R_ADDRESS */ |
| 147 | #define R_16C_REG04a 0X4201 |
| 148 | |
| 149 | /* R_S_16C_04_a R_16C_REGREL R_ABS R_CODE_ADDR */ |
| 150 | #define R_16C_REG04a_C 0X4206 |
| 151 | |
| 152 | /* R_S_16C_14 R_16C_REGREL R_ABS R_ADDRESS */ |
| 153 | #define R_16C_REG14 0X3201 |
| 154 | |
| 155 | /* R_S_16C_14 R_16C_REGREL R_ABS R_CODE_ADDR */ |
| 156 | #define R_16C_REG14_C 0X3206 |
| 157 | |
| 158 | /* R_S_16C_16 R_16C_REGREL R_ABS R_ADDRESS */ |
| 159 | #define R_16C_REG16 0X1201 |
| 160 | |
| 161 | /* R_S_16C_16 R_16C_REGREL R_ABS R_CODE_ADDR */ |
| 162 | #define R_16C_REG16_C 0X1206 |
| 163 | |
| 164 | /* R_S_16C_20 R_16C_REGREL R_ABS R_ADDRESS */ |
| 165 | #define R_16C_REG20 0X8201 |
| 166 | |
| 167 | /* R_S_16C_20 R_16C_REGREL R_ABS R_CODE_ADDR */ |
| 168 | #define R_16C_REG20_C 0X8206 |
| 169 | |
| 170 | /* R_S_16C_20 R_16C_ABS R_ABS R_ADDRESS */ |
| 171 | #define R_16C_ABS20 0X8101 |
| 172 | |
| 173 | /* R_S_16C_20 R_16C_ABS R_ABS R_CODE_ADDR */ |
| 174 | #define R_16C_ABS20_C 0X8106 |
| 175 | |
| 176 | /* R_S_16C_24 R_16C_ABS R_ABS R_ADDRESS */ |
| 177 | #define R_16C_ABS24 0X7101 |
| 178 | |
| 179 | /* R_S_16C_24 R_16C_ABS R_ABS R_CODE_ADDR */ |
| 180 | #define R_16C_ABS24_C 0X7106 |
| 181 | |
| 182 | /* R_S_16C_04 R_16C_IMMED R_ABS R_ADDRESS */ |
| 183 | #define R_16C_IMM04 0X5301 |
| 184 | |
| 185 | /* R_S_16C_04 R_16C_IMMED R_ABS R_CODE_ADDR */ |
| 186 | #define R_16C_IMM04_C 0X5306 |
| 187 | |
| 188 | /* R_S_16C_16 R_16C_IMMED R_ABS R_ADDRESS */ |
| 189 | #define R_16C_IMM16 0X1301 |
| 190 | |
| 191 | /* R_S_16C_16 R_16C_IMMED R_ABS R_CODE_ADDR */ |
| 192 | #define R_16C_IMM16_C 0X1306 |
| 193 | |
| 194 | /* R_S_16C_20 R_16C_IMMED R_ABS R_ADDRESS */ |
| 195 | #define R_16C_IMM20 0X8301 |
| 196 | |
| 197 | /* R_S_16C_20 R_16C_IMMED R_ABS R_CODE_ADDR */ |
| 198 | #define R_16C_IMM20_C 0X8306 |
| 199 | |
| 200 | /* R_S_16C_24 R_16C_IMMED R_ABS R_ADDRESS */ |
| 201 | #define R_16C_IMM24 0X7301 |
| 202 | |
| 203 | /* R_S_16C_24 R_16C_IMMED R_ABS R_CODE_ADDR */ |
| 204 | #define R_16C_IMM24_C 0X7306 |
| 205 | |
| 206 | /* R_S_16C_32 R_16C_IMMED R_ABS R_ADDRESS */ |
| 207 | #define R_16C_IMM32 0X2301 |
| 208 | |
| 209 | /* R_S_16C_32 R_16C_IMMED R_ABS R_CODE_ADDR */ |
| 210 | #define R_16C_IMM32_C 0X2306 |
| 211 | |
| 212 | |
| 213 | /* Relocation item type. */ |
| 214 | #define R_ADDRTYPE 0x000f |
| 215 | #define R_ADDRESS 0x0001 /* Take address of symbol. */ |
| 216 | #define R_CODE_ADDR 0x0006 /* Take address of symbol divided by 2. */ |
| 217 | |
| 218 | /* Relocation action. */ |
| 219 | #define R_RELTO 0x00f0 |
| 220 | #define R_ABS 0x0000 /* Keep symbol's address as such. */ |
| 221 | #define R_PCREL 0x0010 /* Subtract the pc address of hole. */ |
| 222 | |
| 223 | /* Relocation item data format. */ |
| 224 | #define R_FORMAT 0x0f00 |
| 225 | #define R_NUMBER 0x0000 /* Retain as two's complement value. */ |
| 226 | #define R_16C_DISPL 0x0400 /* CR16C displacement type. */ |
| 227 | #define R_16C_ABS 0x0100 /* CR16C absolute type. */ |
| 228 | #define R_16C_REGREL 0x0200 /* CR16C register-relative type. */ |
| 229 | #define R_16C_IMMED 0x0300 /* CR16C immediate type. */ |
| 230 | |
| 231 | /* Relocation item size. */ |
| 232 | #define R_SIZESP 0xf000 |
| 233 | #define R_S_16C_04 0x5000 |
| 234 | #define R_S_16C_04_a 0x4000 |
| 235 | #define R_S_16C_08 0x0000 |
| 236 | #define R_S_16C_14 0x3000 |
| 237 | #define R_S_16C_16 0x1000 |
| 238 | #define R_S_16C_20 0x8000 |
| 239 | #define R_S_16C_24_a 0x6000 |
| 240 | #define R_S_16C_24 0x7000 |
| 241 | #define R_S_16C_32 0x2000 |
| 242 | |
| 243 | |
| 244 | /* Processor specific section indices. These sections do not actually |
| 245 | exist. Symbols with a st_shndx field corresponding to one of these |
| 246 | values have a special meaning. */ |
| 247 | |
| 248 | /* Far common symbol. */ |
| 249 | #define SHN_CR16C_FCOMMON SHN_LORESERVE |
| 250 | #define SHN_CR16C_NCOMMON (SHN_LORESERVE + 1) |
| 251 | |
| 252 | typedef struct reloc_map |
| 253 | { |
| 254 | unsigned short cr_reloc_type; /* CR relocation type. */ |
| 255 | bfd_reloc_code_real_type bfd_reloc_enum; /* BFD relocation enum. */ |
| 256 | } RELOC_MAP; |
| 257 | |
| 258 | #endif /* _ELF_CR16C_H */ |