1 /* AArch64 ELF support for BFD. 2 3 Copyright 2009, 2010, 2011, 2012 Free Software Foundation, Inc. 4 Contributed by ARM Ltd. 5 6 This file is part of GNU Binutils. 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 3 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; see the file COPYING3. If not, 20 see <http://www.gnu.org/licenses/>. */ 21 22 #ifndef _ELF_AARCH64_H 23 #define _ELF_AARCH64_H 24 25 #include "elf/reloc-macros.h" 26 27 /* Processor specific program header types. */ 28 #define PT_AARCH64_ARCHEXT (PT_LOPROC + 0) 29 30 /* Additional section types. */ 31 #define SHT_AARCH64_ATTRIBUTES 0x70000003 /* Section holds attributes. */ 32 33 /* AArch64-specific values for sh_flags. */ 34 #define SHF_ENTRYSECT 0x10000000 /* Section contains an 35 entry point. */ 36 #define SHF_COMDEF 0x80000000 /* Section may be multiply defined 37 in the input to a link step. */ 38 39 /* Relocation types. */ 40 41 START_RELOC_NUMBERS (elf_aarch64_reloc_type) 42 43 /* Null relocations. */ 44 RELOC_NUMBER (R_AARCH64_NONE, 0) /* No reloc */ 45 46 /* Basic data relocations. */ 47 48 /* .word: (S+A) */ 49 RELOC_NUMBER (R_AARCH64_P32_ABS32, 1) 50 51 /* .half: (S+A) */ 52 RELOC_NUMBER (R_AARCH64_P32_ABS16, 2) 53 54 /* .word: (S+A-P) */ 55 RELOC_NUMBER (R_AARCH64_P32_PREL32, 3) 56 57 /* .half: (S+A-P) */ 58 RELOC_NUMBER (R_AARCH64_P32_PREL16, 4) 59 60 /* Group relocations to create a 16, 32, 48 or 64 bit 61 unsigned data or abs address inline. */ 62 63 /* MOV[ZK]: ((S+A) >> 0) & 0xffff */ 64 RELOC_NUMBER (R_AARCH64_P32_MOVW_UABS_G0, 5) 65 66 /* MOV[ZK]: ((S+A) >> 0) & 0xffff */ 67 RELOC_NUMBER (R_AARCH64_P32_MOVW_UABS_G0_NC, 6) 68 69 /* MOV[ZK]: ((S+A) >> 16) & 0xffff */ 70 RELOC_NUMBER (R_AARCH64_P32_MOVW_UABS_G1, 7) 71 72 /* Group relocations to create high part of a 16, 32, 48 or 64 bit 73 signed data or abs address inline. Will change instruction 74 to MOVN or MOVZ depending on sign of calculated value. */ 75 76 /* MOV[ZN]: ((S+A) >> 0) & 0xffff */ 77 RELOC_NUMBER (R_AARCH64_P32_MOVW_SABS_G0, 8) 78 79 /* Relocations to generate 19, 21 and 33 bit PC-relative load/store 80 addresses: PG(x) is (x & ~0xfff). */ 81 82 /* LD-lit: ((S+A-P) >> 2) & 0x7ffff */ 83 RELOC_NUMBER (R_AARCH64_P32_LD_PREL_LO19, 9) 84 85 /* ADR: (S+A-P) & 0x1fffff */ 86 RELOC_NUMBER (R_AARCH64_P32_ADR_PREL_LO21, 10) 87 88 /* ADRH: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */ 89 RELOC_NUMBER (R_AARCH64_P32_ADR_PREL_PG_HI21, 11) 90 91 /* ADD: (S+A) & 0xfff */ 92 RELOC_NUMBER (R_AARCH64_P32_ADD_ABS_LO12_NC, 12) 93 94 /* LD/ST8: (S+A) & 0xfff */ 95 RELOC_NUMBER (R_AARCH64_P32_LDST8_ABS_LO12_NC, 13) 96 97 /* LD/ST16: (S+A) & 0xffe */ 98 RELOC_NUMBER (R_AARCH64_P32_LDST16_ABS_LO12_NC, 14) 99 100 /* LD/ST32: (S+A) & 0xffc */ 101 RELOC_NUMBER (R_AARCH64_P32_LDST32_ABS_LO12_NC, 15) 102 103 /* LD/ST64: (S+A) & 0xff8 */ 104 RELOC_NUMBER (R_AARCH64_P32_LDST64_ABS_LO12_NC, 16) 105 106 /* LD/ST128: (S+A) & 0xff0 */ 107 RELOC_NUMBER (R_AARCH64_P32_LDST128_ABS_LO12_NC, 17) 108 109 /* Relocations for control-flow instructions. */ 110 111 /* TBZ/NZ: ((S+A-P) >> 2) & 0x3fff. */ 112 RELOC_NUMBER (R_AARCH64_P32_TSTBR14, 18) 113 114 /* B.cond: ((S+A-P) >> 2) & 0x7ffff. */ 115 RELOC_NUMBER (R_AARCH64_P32_CONDBR19, 19) 116 117 /* B: ((S+A-P) >> 2) & 0x3ffffff. */ 118 RELOC_NUMBER (R_AARCH64_P32_JUMP26, 20) 119 120 /* BL: ((S+A-P) >> 2) & 0x3ffffff. */ 121 RELOC_NUMBER (R_AARCH64_P32_CALL26, 21) 122 123 124 RELOC_NUMBER (R_AARCH64_P32_GOT_LD_PREL19, 25) 125 RELOC_NUMBER (R_AARCH64_P32_ADR_GOT_PAGE, 26) 126 RELOC_NUMBER (R_AARCH64_P32_LD32_GOT_LO12_NC, 27) 127 128 129 RELOC_NUMBER (R_AARCH64_P32_TLSGD_ADR_PAGE21, 81) 130 RELOC_NUMBER (R_AARCH64_P32_TLSGD_ADD_LO12_NC, 82) 131 RELOC_NUMBER (R_AARCH64_P32_TLSIE_ADR_GOTTPREL_PAGE21, 103) 132 RELOC_NUMBER (R_AARCH64_P32_TLSIE_LD32_GOTTPREL_LO12_NC, 104) 133 RELOC_NUMBER (R_AARCH64_P32_TLSIE_LD_GOTTPREL_PREL19, 105) 134 RELOC_NUMBER (R_AARCH64_P32_TLSLE_MOVW_TPREL_G1, 106) 135 RELOC_NUMBER (R_AARCH64_P32_TLSLE_MOVW_TPREL_G0, 107) 136 RELOC_NUMBER (R_AARCH64_P32_TLSLE_MOVW_TPREL_G0_NC, 108) 137 RELOC_NUMBER (R_AARCH64_P32_TLSLE_ADD_TPREL_HI12, 109) 138 RELOC_NUMBER (R_AARCH64_P32_TLSLE_ADD_TPREL_LO12, 110) 139 RELOC_NUMBER (R_AARCH64_P32_TLSLE_ADD_TPREL_LO12_NC, 111) 140 141 RELOC_NUMBER (R_AARCH64_P32_TLSDESC_LD_PREL19, 122) 142 RELOC_NUMBER (R_AARCH64_P32_TLSDESC_ADR_PREL21, 123) 143 RELOC_NUMBER (R_AARCH64_P32_TLSDESC_ADR_PAGE21, 124) 144 RELOC_NUMBER (R_AARCH64_P32_TLSDESC_LD32_LO12_NC, 125) 145 RELOC_NUMBER (R_AARCH64_P32_TLSDESC_ADD_LO12_NC, 126) 146 RELOC_NUMBER (R_AARCH64_P32_TLSDESC_CALL, 127) 147 148 /* Dynamic relocations */ 149 150 /* Copy symbol at runtime. */ 151 RELOC_NUMBER (R_AARCH64_P32_COPY, 180) 152 153 /* Create GOT entry. */ 154 RELOC_NUMBER (R_AARCH64_P32_GLOB_DAT, 181) 155 156 /* Create PLT entry. */ 157 RELOC_NUMBER (R_AARCH64_P32_JUMP_SLOT, 182) 158 159 /* Adjust by program base. */ 160 RELOC_NUMBER (R_AARCH64_P32_RELATIVE, 183) 161 RELOC_NUMBER (R_AARCH64_P32_TLS_DTPMOD, 184) 162 RELOC_NUMBER (R_AARCH64_P32_TLS_DTPREL, 185) 163 RELOC_NUMBER (R_AARCH64_P32_TLS_TPREL, 186) 164 RELOC_NUMBER (R_AARCH64_P32_TLSDESC, 187) 165 RELOC_NUMBER (R_AARCH64_P32_IRELATIVE, 188) 166 167 RELOC_NUMBER (R_AARCH64_NULL, 256) /* No reloc */ 168 169 /* Basic data relocations. */ 170 171 /* .xword: (S+A) */ 172 RELOC_NUMBER (R_AARCH64_ABS64, 257) 173 174 /* .word: (S+A) */ 175 RELOC_NUMBER (R_AARCH64_ABS32, 258) 176 177 /* .half: (S+A) */ 178 RELOC_NUMBER (R_AARCH64_ABS16, 259) 179 180 /* .xword: (S+A-P) */ 181 RELOC_NUMBER (R_AARCH64_PREL64, 260) 182 183 /* .word: (S+A-P) */ 184 RELOC_NUMBER (R_AARCH64_PREL32, 261) 185 186 /* .half: (S+A-P) */ 187 RELOC_NUMBER (R_AARCH64_PREL16, 262) 188 189 /* Group relocations to create a 16, 32, 48 or 64 bit 190 unsigned data or abs address inline. */ 191 192 /* MOV[ZK]: ((S+A) >> 0) & 0xffff */ 193 RELOC_NUMBER (R_AARCH64_MOVW_UABS_G0, 263) 194 195 /* MOV[ZK]: ((S+A) >> 0) & 0xffff */ 196 RELOC_NUMBER (R_AARCH64_MOVW_UABS_G0_NC, 264) 197 198 /* MOV[ZK]: ((S+A) >> 16) & 0xffff */ 199 RELOC_NUMBER (R_AARCH64_MOVW_UABS_G1, 265) 200 201 /* MOV[ZK]: ((S+A) >> 16) & 0xffff */ 202 RELOC_NUMBER (R_AARCH64_MOVW_UABS_G1_NC, 266) 203 204 /* MOV[ZK]: ((S+A) >> 32) & 0xffff */ 205 RELOC_NUMBER (R_AARCH64_MOVW_UABS_G2, 267) 206 207 /* MOV[ZK]: ((S+A) >> 32) & 0xffff */ 208 RELOC_NUMBER (R_AARCH64_MOVW_UABS_G2_NC, 268) 209 210 /* MOV[ZK]: ((S+A) >> 48) & 0xffff */ 211 RELOC_NUMBER (R_AARCH64_MOVW_UABS_G3, 269) 212 213 /* Group relocations to create high part of a 16, 32, 48 or 64 bit 214 signed data or abs address inline. Will change instruction 215 to MOVN or MOVZ depending on sign of calculated value. */ 216 217 /* MOV[ZN]: ((S+A) >> 0) & 0xffff */ 218 RELOC_NUMBER (R_AARCH64_MOVW_SABS_G0, 270) 219 220 /* MOV[ZN]: ((S+A) >> 16) & 0xffff */ 221 RELOC_NUMBER (R_AARCH64_MOVW_SABS_G1, 271) 222 223 /* MOV[ZN]: ((S+A) >> 32) & 0xffff */ 224 RELOC_NUMBER (R_AARCH64_MOVW_SABS_G2, 272) 225 226 /* Relocations to generate 19, 21 and 33 bit PC-relative load/store 227 addresses: PG(x) is (x & ~0xfff). */ 228 229 /* LD-lit: ((S+A-P) >> 2) & 0x7ffff */ 230 RELOC_NUMBER (R_AARCH64_LD_PREL_LO19, 273) 231 232 /* ADR: (S+A-P) & 0x1fffff */ 233 RELOC_NUMBER (R_AARCH64_ADR_PREL_LO21, 274) 234 235 /* ADRH: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */ 236 RELOC_NUMBER (R_AARCH64_ADR_PREL_PG_HI21, 275) 237 238 /* ADRH: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */ 239 RELOC_NUMBER (R_AARCH64_ADR_PREL_PG_HI21_NC, 276) 240 241 /* ADD: (S+A) & 0xfff */ 242 RELOC_NUMBER (R_AARCH64_ADD_ABS_LO12_NC, 277) 243 244 /* LD/ST8: (S+A) & 0xfff */ 245 RELOC_NUMBER (R_AARCH64_LDST8_ABS_LO12_NC, 278) 246 247 /* Relocations for control-flow instructions. */ 248 249 /* TBZ/NZ: ((S+A-P) >> 2) & 0x3fff. */ 250 RELOC_NUMBER (R_AARCH64_TSTBR14, 279) 251 252 /* B.cond: ((S+A-P) >> 2) & 0x7ffff. */ 253 RELOC_NUMBER (R_AARCH64_CONDBR19, 280) 254 255 /* 281 unused */ 256 257 /* B: ((S+A-P) >> 2) & 0x3ffffff. */ 258 RELOC_NUMBER (R_AARCH64_JUMP26, 282) 259 260 /* BL: ((S+A-P) >> 2) & 0x3ffffff. */ 261 RELOC_NUMBER (R_AARCH64_CALL26, 283) 262 263 /* LD/ST16: (S+A) & 0xffe */ 264 RELOC_NUMBER (R_AARCH64_LDST16_ABS_LO12_NC, 284) 265 266 /* LD/ST32: (S+A) & 0xffc */ 267 RELOC_NUMBER (R_AARCH64_LDST32_ABS_LO12_NC, 285) 268 269 /* LD/ST64: (S+A) & 0xff8 */ 270 RELOC_NUMBER (R_AARCH64_LDST64_ABS_LO12_NC, 286) 271 272 /* LD/ST128: (S+A) & 0xff0 */ 273 RELOC_NUMBER (R_AARCH64_LDST128_ABS_LO12_NC, 299) 274 275 RELOC_NUMBER (R_AARCH64_GOT_LD_PREL19, 309) 276 RELOC_NUMBER (R_AARCH64_ADR_GOT_PAGE, 311) 277 RELOC_NUMBER (R_AARCH64_LD64_GOT_LO12_NC, 312) 278 279 RELOC_NUMBER (R_AARCH64_TLSGD_ADR_PAGE21, 513) 280 RELOC_NUMBER (R_AARCH64_TLSGD_ADD_LO12_NC, 514) 281 RELOC_NUMBER (R_AARCH64_TLSIE_MOVW_GOTTPREL_G1, 539) 282 RELOC_NUMBER (R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC, 540) 283 RELOC_NUMBER (R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21, 541) 284 RELOC_NUMBER (R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC, 542) 285 RELOC_NUMBER (R_AARCH64_TLSIE_LD_GOTTPREL_PREL19, 543) 286 RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G2, 544) 287 RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G1, 545) 288 RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G1_NC, 546) 289 RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G0, 547) 290 RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G0_NC, 548) 291 RELOC_NUMBER (R_AARCH64_TLSLE_ADD_TPREL_HI12, 549) 292 RELOC_NUMBER (R_AARCH64_TLSLE_ADD_TPREL_LO12, 550) 293 RELOC_NUMBER (R_AARCH64_TLSLE_ADD_TPREL_LO12_NC, 551) 294 295 RELOC_NUMBER (R_AARCH64_TLSDESC_LD_PREL19, 560) 296 RELOC_NUMBER (R_AARCH64_TLSDESC_ADR_PREL21, 561) 297 RELOC_NUMBER (R_AARCH64_TLSDESC_ADR_PAGE21, 562) 298 RELOC_NUMBER (R_AARCH64_TLSDESC_LD64_LO12_NC, 563) 299 RELOC_NUMBER (R_AARCH64_TLSDESC_ADD_LO12_NC, 564) 300 RELOC_NUMBER (R_AARCH64_TLSDESC_OFF_G1, 565) 301 RELOC_NUMBER (R_AARCH64_TLSDESC_OFF_G0_NC, 566) 302 RELOC_NUMBER (R_AARCH64_TLSDESC_LDR, 567) 303 RELOC_NUMBER (R_AARCH64_TLSDESC_ADD, 568) 304 RELOC_NUMBER (R_AARCH64_TLSDESC_CALL, 569) 305 306 /* Dynamic relocations */ 307 308 /* Copy symbol at runtime. */ 309 RELOC_NUMBER (R_AARCH64_COPY, 1024) 310 311 /* Create GOT entry. */ 312 RELOC_NUMBER (R_AARCH64_GLOB_DAT, 1025) 313 314 /* Create PLT entry. */ 315 RELOC_NUMBER (R_AARCH64_JUMP_SLOT, 1026) 316 317 /* Adjust by program base. */ 318 RELOC_NUMBER (R_AARCH64_RELATIVE, 1027) 319 RELOC_NUMBER (R_AARCH64_TLS_DTPMOD64, 1028) 320 RELOC_NUMBER (R_AARCH64_TLS_DTPREL64, 1029) 321 RELOC_NUMBER (R_AARCH64_TLS_TPREL64, 1030) 322 /* Aliasing relocs are guarded by RELOC_MACROS_GEN_FUNC 323 so that readelf.c won't generate duplicated case 324 statements. */ 325 #ifndef RELOC_MACROS_GEN_FUNC 326 RELOC_NUMBER (R_AARCH64_TLS_DTPMOD, 1028) 327 RELOC_NUMBER (R_AARCH64_TLS_DTPREL, 1029) 328 RELOC_NUMBER (R_AARCH64_TLS_TPREL, 1030) 329 #endif 330 RELOC_NUMBER (R_AARCH64_TLSDESC, 1031) 331 RELOC_NUMBER (R_AARCH64_IRELATIVE, 1032) 332 333 END_RELOC_NUMBERS (R_AARCH64_end) 334 335 #endif /* _ELF_AARCH64_H */ 336