| 1 | /* NDS32 ELF support for BFD. |
| 2 | Copyright (C) 2012-2015 Free Software Foundation, Inc. |
| 3 | Contributed by Andes Technology Corporation. |
| 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, MA |
| 20 | 02110-1301, USA. */ |
| 21 | |
| 22 | #ifndef _ELF_NDS32_H |
| 23 | #define _ELF_NDS32_H |
| 24 | |
| 25 | #include "elf/reloc-macros.h" |
| 26 | |
| 27 | /* Relocations. */ |
| 28 | START_RELOC_NUMBERS (elf_nds32_reloc_type) |
| 29 | RELOC_NUMBER (R_NDS32_NONE, 0) |
| 30 | /* REL relocations. */ |
| 31 | RELOC_NUMBER (R_NDS32_16, 1) |
| 32 | RELOC_NUMBER (R_NDS32_32, 2) |
| 33 | RELOC_NUMBER (R_NDS32_20, 3) |
| 34 | RELOC_NUMBER (R_NDS32_9_PCREL, 4) |
| 35 | RELOC_NUMBER (R_NDS32_15_PCREL, 5) |
| 36 | RELOC_NUMBER (R_NDS32_17_PCREL, 6) |
| 37 | RELOC_NUMBER (R_NDS32_25_PCREL, 7) |
| 38 | RELOC_NUMBER (R_NDS32_HI20, 8) |
| 39 | RELOC_NUMBER (R_NDS32_LO12S3, 9) |
| 40 | RELOC_NUMBER (R_NDS32_LO12S2, 10) |
| 41 | RELOC_NUMBER (R_NDS32_LO12S1, 11) |
| 42 | RELOC_NUMBER (R_NDS32_LO12S0, 12) |
| 43 | RELOC_NUMBER (R_NDS32_SDA15S3, 13) |
| 44 | RELOC_NUMBER (R_NDS32_SDA15S2, 14) |
| 45 | RELOC_NUMBER (R_NDS32_SDA15S1, 15) |
| 46 | RELOC_NUMBER (R_NDS32_SDA15S0, 16) |
| 47 | RELOC_NUMBER (R_NDS32_GNU_VTINHERIT, 17) |
| 48 | RELOC_NUMBER (R_NDS32_GNU_VTENTRY, 18) |
| 49 | |
| 50 | /* RELA relocations. */ |
| 51 | RELOC_NUMBER (R_NDS32_16_RELA, 19) |
| 52 | RELOC_NUMBER (R_NDS32_32_RELA, 20) |
| 53 | RELOC_NUMBER (R_NDS32_20_RELA, 21) |
| 54 | RELOC_NUMBER (R_NDS32_9_PCREL_RELA, 22) |
| 55 | RELOC_NUMBER (R_NDS32_15_PCREL_RELA, 23) |
| 56 | RELOC_NUMBER (R_NDS32_17_PCREL_RELA, 24) |
| 57 | RELOC_NUMBER (R_NDS32_25_PCREL_RELA, 25) |
| 58 | RELOC_NUMBER (R_NDS32_HI20_RELA, 26) |
| 59 | RELOC_NUMBER (R_NDS32_LO12S3_RELA, 27) |
| 60 | RELOC_NUMBER (R_NDS32_LO12S2_RELA, 28) |
| 61 | RELOC_NUMBER (R_NDS32_LO12S1_RELA, 29) |
| 62 | RELOC_NUMBER (R_NDS32_LO12S0_RELA, 30) |
| 63 | RELOC_NUMBER (R_NDS32_SDA15S3_RELA, 31) |
| 64 | RELOC_NUMBER (R_NDS32_SDA15S2_RELA, 32) |
| 65 | RELOC_NUMBER (R_NDS32_SDA15S1_RELA, 33) |
| 66 | RELOC_NUMBER (R_NDS32_SDA15S0_RELA, 34) |
| 67 | RELOC_NUMBER (R_NDS32_RELA_GNU_VTINHERIT, 35) |
| 68 | RELOC_NUMBER (R_NDS32_RELA_GNU_VTENTRY, 36) |
| 69 | |
| 70 | RELOC_NUMBER (R_NDS32_GOT20, 37) |
| 71 | RELOC_NUMBER (R_NDS32_25_PLTREL, 38) |
| 72 | RELOC_NUMBER (R_NDS32_COPY, 39) |
| 73 | RELOC_NUMBER (R_NDS32_GLOB_DAT, 40) |
| 74 | RELOC_NUMBER (R_NDS32_JMP_SLOT, 41) |
| 75 | RELOC_NUMBER (R_NDS32_RELATIVE, 42) |
| 76 | RELOC_NUMBER (R_NDS32_GOTOFF, 43) |
| 77 | RELOC_NUMBER (R_NDS32_GOTPC20, 44) |
| 78 | RELOC_NUMBER (R_NDS32_GOT_HI20, 45) |
| 79 | RELOC_NUMBER (R_NDS32_GOT_LO12, 46) |
| 80 | RELOC_NUMBER (R_NDS32_GOTPC_HI20, 47) |
| 81 | RELOC_NUMBER (R_NDS32_GOTPC_LO12, 48) |
| 82 | RELOC_NUMBER (R_NDS32_GOTOFF_HI20, 49) |
| 83 | RELOC_NUMBER (R_NDS32_GOTOFF_LO12, 50) |
| 84 | RELOC_NUMBER (R_NDS32_INSN16, 51) |
| 85 | RELOC_NUMBER (R_NDS32_LABEL, 52) |
| 86 | RELOC_NUMBER (R_NDS32_LONGCALL1, 53) |
| 87 | RELOC_NUMBER (R_NDS32_LONGCALL2, 54) |
| 88 | RELOC_NUMBER (R_NDS32_LONGCALL3, 55) |
| 89 | RELOC_NUMBER (R_NDS32_LONGJUMP1, 56) |
| 90 | RELOC_NUMBER (R_NDS32_LONGJUMP2, 57) |
| 91 | RELOC_NUMBER (R_NDS32_LONGJUMP3, 58) |
| 92 | RELOC_NUMBER (R_NDS32_LOADSTORE, 59) |
| 93 | RELOC_NUMBER (R_NDS32_9_FIXED_RELA, 60) |
| 94 | RELOC_NUMBER (R_NDS32_15_FIXED_RELA, 61) |
| 95 | RELOC_NUMBER (R_NDS32_17_FIXED_RELA, 62) |
| 96 | RELOC_NUMBER (R_NDS32_25_FIXED_RELA, 63) |
| 97 | RELOC_NUMBER (R_NDS32_PLTREL_HI20, 64) /* This is obsoleted. */ |
| 98 | RELOC_NUMBER (R_NDS32_PLTREL_LO12, 65) /* This is obsoleted. */ |
| 99 | RELOC_NUMBER (R_NDS32_PLT_GOTREL_HI20, 66) |
| 100 | RELOC_NUMBER (R_NDS32_PLT_GOTREL_LO12, 67) |
| 101 | RELOC_NUMBER (R_NDS32_SDA12S2_DP_RELA, 68) |
| 102 | RELOC_NUMBER (R_NDS32_SDA12S2_SP_RELA, 69) |
| 103 | RELOC_NUMBER (R_NDS32_LO12S2_DP_RELA, 70) |
| 104 | RELOC_NUMBER (R_NDS32_LO12S2_SP_RELA, 71) |
| 105 | RELOC_NUMBER (R_NDS32_LO12S0_ORI_RELA, 72) |
| 106 | RELOC_NUMBER (R_NDS32_SDA16S3_RELA, 73) |
| 107 | RELOC_NUMBER (R_NDS32_SDA17S2_RELA, 74) |
| 108 | RELOC_NUMBER (R_NDS32_SDA18S1_RELA, 75) |
| 109 | RELOC_NUMBER (R_NDS32_SDA19S0_RELA, 76) |
| 110 | RELOC_NUMBER (R_NDS32_DWARF2_OP1_RELA, 77) |
| 111 | RELOC_NUMBER (R_NDS32_DWARF2_OP2_RELA, 78) |
| 112 | RELOC_NUMBER (R_NDS32_DWARF2_LEB_RELA, 79) |
| 113 | RELOC_NUMBER (R_NDS32_UPDATE_TA_RELA, 80) /* This is obsoleted. */ |
| 114 | RELOC_NUMBER (R_NDS32_9_PLTREL, 81) |
| 115 | RELOC_NUMBER (R_NDS32_PLT_GOTREL_LO20, 82) |
| 116 | RELOC_NUMBER (R_NDS32_PLT_GOTREL_LO15, 83) |
| 117 | RELOC_NUMBER (R_NDS32_PLT_GOTREL_LO19, 84) |
| 118 | RELOC_NUMBER (R_NDS32_GOT_LO15, 85) |
| 119 | RELOC_NUMBER (R_NDS32_GOT_LO19, 86) |
| 120 | RELOC_NUMBER (R_NDS32_GOTOFF_LO15, 87) |
| 121 | RELOC_NUMBER (R_NDS32_GOTOFF_LO19, 88) |
| 122 | RELOC_NUMBER (R_NDS32_GOT15S2_RELA, 89) |
| 123 | RELOC_NUMBER (R_NDS32_GOT17S2_RELA, 90) |
| 124 | RELOC_NUMBER (R_NDS32_5_RELA, 91) |
| 125 | RELOC_NUMBER (R_NDS32_10_UPCREL_RELA, 92) /* This is obsoleted. */ |
| 126 | RELOC_NUMBER (R_NDS32_SDA_FP7U2_RELA, 93) |
| 127 | RELOC_NUMBER (R_NDS32_WORD_9_PCREL_RELA, 94) |
| 128 | RELOC_NUMBER (R_NDS32_25_ABS_RELA, 95) |
| 129 | RELOC_NUMBER (R_NDS32_17IFC_PCREL_RELA, 96) |
| 130 | RELOC_NUMBER (R_NDS32_10IFCU_PCREL_RELA, 97) |
| 131 | RELOC_NUMBER (R_NDS32_TLS_LE_HI20, 98) |
| 132 | RELOC_NUMBER (R_NDS32_TLS_LE_LO12, 99) |
| 133 | RELOC_NUMBER (R_NDS32_TLS_IE_HI20, 100) |
| 134 | RELOC_NUMBER (R_NDS32_TLS_IE_LO12S2, 101) |
| 135 | RELOC_NUMBER (R_NDS32_TLS_TPOFF, 102) |
| 136 | RELOC_NUMBER (R_NDS32_TLS_LE_20, 103) |
| 137 | RELOC_NUMBER (R_NDS32_TLS_LE_15S0, 104) |
| 138 | RELOC_NUMBER (R_NDS32_TLS_LE_15S1, 105) |
| 139 | RELOC_NUMBER (R_NDS32_TLS_LE_15S2, 106) |
| 140 | RELOC_NUMBER (R_NDS32_LONGCALL4, 107) |
| 141 | RELOC_NUMBER (R_NDS32_LONGCALL5, 108) |
| 142 | RELOC_NUMBER (R_NDS32_LONGCALL6, 109) |
| 143 | RELOC_NUMBER (R_NDS32_LONGJUMP4, 110) |
| 144 | RELOC_NUMBER (R_NDS32_LONGJUMP5, 111) |
| 145 | RELOC_NUMBER (R_NDS32_LONGJUMP6, 112) |
| 146 | RELOC_NUMBER (R_NDS32_LONGJUMP7, 113) |
| 147 | |
| 148 | RELOC_NUMBER (R_NDS32_RELAX_ENTRY, 192) |
| 149 | RELOC_NUMBER (R_NDS32_GOT_SUFF, 193) |
| 150 | RELOC_NUMBER (R_NDS32_GOTOFF_SUFF, 194) |
| 151 | RELOC_NUMBER (R_NDS32_PLT_GOT_SUFF, 195) |
| 152 | RELOC_NUMBER (R_NDS32_MULCALL_SUFF, 196) /* This is obsoleted. */ |
| 153 | RELOC_NUMBER (R_NDS32_PTR, 197) |
| 154 | RELOC_NUMBER (R_NDS32_PTR_COUNT, 198) |
| 155 | RELOC_NUMBER (R_NDS32_PTR_RESOLVED, 199) |
| 156 | RELOC_NUMBER (R_NDS32_PLTBLOCK, 200) /* This is obsoleted. */ |
| 157 | RELOC_NUMBER (R_NDS32_RELAX_REGION_BEGIN, 201) |
| 158 | RELOC_NUMBER (R_NDS32_RELAX_REGION_END, 202) |
| 159 | RELOC_NUMBER (R_NDS32_MINUEND, 203) |
| 160 | RELOC_NUMBER (R_NDS32_SUBTRAHEND, 204) |
| 161 | RELOC_NUMBER (R_NDS32_DIFF8, 205) |
| 162 | RELOC_NUMBER (R_NDS32_DIFF16, 206) |
| 163 | RELOC_NUMBER (R_NDS32_DIFF32, 207) |
| 164 | RELOC_NUMBER (R_NDS32_DIFF_ULEB128, 208) |
| 165 | RELOC_NUMBER (R_NDS32_DATA, 209) |
| 166 | RELOC_NUMBER (R_NDS32_TRAN, 210) |
| 167 | RELOC_NUMBER (R_NDS32_TLS_LE_ADD, 211) |
| 168 | RELOC_NUMBER (R_NDS32_TLS_LE_LS, 212) |
| 169 | RELOC_NUMBER (R_NDS32_EMPTY, 213) |
| 170 | |
| 171 | END_RELOC_NUMBERS (R_NDS32_max) |
| 172 | |
| 173 | /* Processor specific section indices. These sections do not actually |
| 174 | exist. Symbols with a st_shndx field corresponding to one of these |
| 175 | values have a special meaning. */ |
| 176 | |
| 177 | /* Processor specific flags for the ELF header e_flags field. |
| 178 | |
| 179 | 31 28 27 8 7 4 3 0 |
| 180 | --------------------------------------------- |
| 181 | | ARCH | CONFUGURAION FIELD | ABI | ELF_VER | |
| 182 | --------------------------------------------- */ |
| 183 | |
| 184 | /* Architechure definition. */ |
| 185 | |
| 186 | /* 4-bit (b31-b28) nds32 architecture field. |
| 187 | We can have up to 15 architectures; 0000 is for unknown. */ |
| 188 | #define EF_NDS_ARCH 0xF0000000 |
| 189 | #define EF_NDS_ARCH_SHIFT 28 |
| 190 | /* There could be more architectures. For now, only n1 and n1h. */ |
| 191 | #define E_NDS_ARCH_STAR_RESERVED 0x00000000 |
| 192 | #define E_NDS_ARCH_STAR_V1_0 0x10000000 |
| 193 | #define E_NDS_ARCH_STAR_V2_0 0x20000000 |
| 194 | #define E_NDS_ARCH_STAR_V3_0 0x30000000 |
| 195 | #define E_NDS_ARCH_STAR_V3_M 0x40000000 |
| 196 | #define E_NDS_ARCH_STAR_V0_9 0x90000000 /* Obsoleted. */ |
| 197 | /* n1 code. */ |
| 198 | #define E_N1_ARCH E_NDS_ARCH_STAR_V0_9 |
| 199 | /* n1h code. */ |
| 200 | #define E_N1H_ARCH E_NDS_ARCH_STAR_V1_0 |
| 201 | |
| 202 | |
| 203 | /* Configuration field definitioans. */ |
| 204 | #define EF_NDS_INST 0x0FFFFF00 |
| 205 | |
| 206 | /* E_NDS_ARCH_STAR_V1_0 configuration fields. |
| 207 | |
| 208 | E_NDS_ARCH_STAR_V2_0 configuration fields. |
| 209 | These are discarded in v2. |
| 210 | * E_NDS32_HAS_MFUSR_PC_INST 0x00000100 |
| 211 | * E_NDS32_HAS_DIV_INST 0x00002000 |
| 212 | * E_NDS32_HAS_NO_MAC_INST 0x00100000 |
| 213 | These are added in v2. |
| 214 | * E_NDS32_HAS_DIV_DX_INST 0x00002000 |
| 215 | * E_NDS32_HAS_MAC_DX_INST 0x00100000 */ |
| 216 | |
| 217 | /* MFUSR rt, PC and correct ISYNC, MSYNC instructions. |
| 218 | Old N1213HC has no such instructions. */ |
| 219 | #define E_NDS32_HAS_MFUSR_PC_INST 0x00000100 /* Reclaimed. */ |
| 220 | #define E_NDS32_HAS_EX9_INST 0x00000100 /* v3, ELF 1.4. */ |
| 221 | /* C/C++ performance extension instructions. */ |
| 222 | #define E_NDS32_HAS_EXT_INST 0x00000200 |
| 223 | /* Performance extension set II instructions. */ |
| 224 | #define E_NDS32_HAS_EXT2_INST 0x00000400 |
| 225 | /* Single precision Floating point processor instructions. */ |
| 226 | #define E_NDS32_HAS_FPU_INST 0x00000800 |
| 227 | /* Audio instructions with 32-bit audio dx.lo register. */ |
| 228 | #define E_NDS32_HAS_AUDIO_INST 0x00001000 |
| 229 | /* DIV instructions. */ |
| 230 | #define E_NDS32_HAS_DIV_INST 0x00002000 /* Reclaimed. */ |
| 231 | /* DIV instructions using d0/d1. */ |
| 232 | #define E_NDS32_HAS_DIV_DX_INST 0x00002000 /* v2. */ |
| 233 | /* 16-bit instructions. */ |
| 234 | #define E_NDS32_HAS_16BIT_INST 0x00004000 /* Reclaimed. */ |
| 235 | #define E_NDS32_HAS_IFC_INST 0x00004000 /* v3, ELF 1.4. */ |
| 236 | /* String operation instructions. */ |
| 237 | #define E_NDS32_HAS_STRING_INST 0x00008000 |
| 238 | /* Reduced register file. */ |
| 239 | #define E_NDS32_HAS_REDUCED_REGS 0x00010000 |
| 240 | /* Video instructions. */ |
| 241 | #define E_NDS32_HAS_VIDEO_INST 0x00020000 /* Reclaimed. */ |
| 242 | #define E_NDS32_HAS_SATURATION_INST 0x00020000 /* v3, ELF 1.4. */ |
| 243 | /* Encription instructions. */ |
| 244 | #define E_NDS32_HAS_ENCRIPT_INST 0x00040000 |
| 245 | /* Doulbe Precision Floating point processor instructions. */ |
| 246 | #define E_NDS32_HAS_FPU_DP_INST 0x00080000 |
| 247 | /* No MAC instruction used. */ |
| 248 | #define E_NDS32_HAS_NO_MAC_INST 0x00100000 /* Reclaimed when V2/V3. */ |
| 249 | /* MAC instruction using d0/d1. */ |
| 250 | #define E_NDS32_HAS_MAC_DX_INST 0x00100000 /* v2. */ |
| 251 | /* L2 cache instruction. */ |
| 252 | #define E_NDS32_HAS_L2C_INST 0x00200000 |
| 253 | /* FPU registers configuration when FPU SP/DP presents; 0x00c00000. */ |
| 254 | #define E_NDS32_FPU_REG_CONF_SHIFT 22 |
| 255 | #define E_NDS32_FPU_REG_CONF (0x3 << E_NDS32_FPU_REG_CONF_SHIFT) |
| 256 | #define E_NDS32_FPU_REG_8SP_4DP 0x0 |
| 257 | #define E_NDS32_FPU_REG_16SP_8DP 0x1 |
| 258 | #define E_NDS32_FPU_REG_32SP_16DP 0x2 |
| 259 | #define E_NDS32_FPU_REG_32SP_32DP 0x3 |
| 260 | /* FPU MAC instruction used. */ |
| 261 | #define E_NDS32_HAS_FPU_MAC_INST 0x01000000 |
| 262 | /* <<<Empty Check>>>. */ |
| 263 | #define E_NDS32_NULL 0x02000000 |
| 264 | /* PIC enabled. */ |
| 265 | #define E_NDS32_HAS_PIC 0x04000000 |
| 266 | /* Use custom section. */ |
| 267 | #define E_NDS32_HAS_CUSTOM_SEC 0x08000000 |
| 268 | |
| 269 | /* 4-bit for ABI signature, allow up to 16 ABIs |
| 270 | 0: for OLD ABI V0, phase out |
| 271 | 1: for V1 , starting with V0 toolchain |
| 272 | 2: for V2 |
| 273 | 3: for V2FP (fs0, fs1 as function parameter) |
| 274 | 4: for AABI */ |
| 275 | /* Only old N1213HC use V0. |
| 276 | New ABI is used due to return register is changed to r0 from r5. */ |
| 277 | #define EF_NDS_ABI 0x000000F0 |
| 278 | #define EF_NDS_ABI_SHIFT 4 |
| 279 | #define E_NDS_ABI_V0 0x00000000 |
| 280 | #define E_NDS_ABI_V1 0x00000010 |
| 281 | #define E_NDS_ABI_V2 0x00000020 |
| 282 | #define E_NDS_ABI_V2FP 0x00000030 |
| 283 | #define E_NDS_ABI_AABI 0x00000040 |
| 284 | #define E_NDS_ABI_V2FP_PLUS 0x00000050 |
| 285 | |
| 286 | /* This flag signifies the version of Andes ELF. |
| 287 | Some more information may exist somewhere which is TBD. */ |
| 288 | #define EF_NDS32_ELF_VERSION 0x0000000F |
| 289 | #define EF_NDS32_ELF_VERSION_SHIFT 0 |
| 290 | |
| 291 | /* Andes ELF Version 1.3 and before. */ |
| 292 | #define E_NDS32_ELF_VER_1_2 0x0 |
| 293 | /* Andes ELF Version 1.31. */ |
| 294 | #define E_NDS32_ELF_VER_1_3 0x1 |
| 295 | /* Andes ELF Version 1.4. Change the way we fix .debug_* and .gcc_except_table. |
| 296 | Change three bit for EX9, IFC and SAT. */ |
| 297 | #define E_NDS32_ELF_VER_1_4 0x2 |
| 298 | |
| 299 | #endif |