1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #pragma once 30 31 #include <sys/cdefs.h> 32 33 #include <bits/auxvec.h> 34 #include <bits/elf_arm.h> 35 #include <bits/elf_arm64.h> 36 #include <bits/elf_x86.h> 37 #include <bits/elf_x86_64.h> 38 #include <linux/elf.h> 39 #include <linux/elf-em.h> 40 41 /* http://www.sco.com/developers/gabi/latest/ch4.intro.html */ 42 typedef __u64 Elf32_Xword; 43 typedef __s64 Elf32_Sxword; 44 45 typedef struct { 46 __u32 a_type; 47 union { 48 __u32 a_val; 49 } a_un; 50 } Elf32_auxv_t; 51 52 typedef struct { 53 __u64 a_type; 54 union { 55 __u64 a_val; 56 } a_un; 57 } Elf64_auxv_t; 58 59 /* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */ 60 typedef struct { 61 Elf32_Word ch_type; 62 Elf32_Word ch_size; 63 Elf32_Word ch_addralign; 64 } Elf32_Chdr; 65 typedef struct { 66 Elf64_Word ch_type; 67 Elf64_Word ch_reserved; 68 Elf64_Xword ch_size; 69 Elf64_Xword ch_addralign; 70 } Elf64_Chdr; 71 72 typedef struct { 73 Elf32_Word l_name; 74 Elf32_Word l_time_stamp; 75 Elf32_Word l_checksum; 76 Elf32_Word l_version; 77 Elf32_Word l_flags; 78 } Elf32_Lib; 79 typedef struct { 80 Elf64_Word l_name; 81 Elf64_Word l_time_stamp; 82 Elf64_Word l_checksum; 83 Elf64_Word l_version; 84 Elf64_Word l_flags; 85 } Elf64_Lib; 86 /* ElfW(Lib)::l_flags values. */ 87 #define LL_NONE 0x0 88 #define LL_EXACT_MATCH 0x1 89 #define LL_IGNORE_INT_VER 0x2 90 #define LL_REQUIRE_MINOR 0x4 91 #define LL_EXPORTS 0x8 92 #define LL_DELAY_LOAD 0x10 93 #define LL_DELTA 0x20 94 95 typedef struct { 96 Elf32_Xword m_value; 97 Elf32_Word m_info; 98 Elf32_Word m_poffset; 99 Elf32_Half m_repeat; 100 Elf32_Half m_stride; 101 } Elf32_Move; 102 typedef struct { 103 Elf64_Xword m_value; 104 Elf64_Xword m_info; 105 Elf64_Xword m_poffset; 106 Elf64_Half m_repeat; 107 Elf64_Half m_stride; 108 } Elf64_Move; 109 110 typedef __u16 Elf32_Section; 111 typedef __u16 Elf64_Section; 112 113 typedef struct { 114 Elf32_Half si_boundto; 115 Elf32_Half si_flags; 116 } Elf32_Syminfo; 117 typedef struct { 118 Elf64_Half si_boundto; 119 Elf64_Half si_flags; 120 } Elf64_Syminfo; 121 /* ElfW(Syminfo)::si_boundto values. */ 122 #define SYMINFO_BT_SELF 0xffff 123 #define SYMINFO_BT_PARENT 0xfffe 124 /* ElfW(Syminfo)::si_flags values. */ 125 #define SYMINFO_FLG_DIRECT 0x1 126 #define SYMINFO_FLG_PASSTHRU 0x2 127 #define SYMINFO_FLG_COPY 0x4 128 #define SYMINFO_FLG_LAZYLOAD 0x8 129 130 typedef Elf32_Half Elf32_Versym; 131 typedef Elf64_Half Elf64_Versym; 132 133 typedef struct { 134 Elf32_Half vd_version; 135 Elf32_Half vd_flags; 136 Elf32_Half vd_ndx; 137 Elf32_Half vd_cnt; 138 Elf32_Word vd_hash; 139 Elf32_Word vd_aux; 140 Elf32_Word vd_next; 141 } Elf32_Verdef; 142 143 typedef struct { 144 Elf32_Word vda_name; 145 Elf32_Word vda_next; 146 } Elf32_Verdaux; 147 148 typedef struct { 149 Elf64_Half vd_version; 150 Elf64_Half vd_flags; 151 Elf64_Half vd_ndx; 152 Elf64_Half vd_cnt; 153 Elf64_Word vd_hash; 154 Elf64_Word vd_aux; 155 Elf64_Word vd_next; 156 } Elf64_Verdef; 157 158 typedef struct { 159 Elf64_Word vda_name; 160 Elf64_Word vda_next; 161 } Elf64_Verdaux; 162 163 typedef struct { 164 Elf32_Half vn_version; 165 Elf32_Half vn_cnt; 166 Elf32_Word vn_file; 167 Elf32_Word vn_aux; 168 Elf32_Word vn_next; 169 } Elf32_Verneed; 170 171 typedef struct { 172 Elf32_Word vna_hash; 173 Elf32_Half vna_flags; 174 Elf32_Half vna_other; 175 Elf32_Word vna_name; 176 Elf32_Word vna_next; 177 } Elf32_Vernaux; 178 179 typedef struct { 180 Elf64_Half vn_version; 181 Elf64_Half vn_cnt; 182 Elf64_Word vn_file; 183 Elf64_Word vn_aux; 184 Elf64_Word vn_next; 185 } Elf64_Verneed; 186 187 typedef struct { 188 Elf64_Word vna_hash; 189 Elf64_Half vna_flags; 190 Elf64_Half vna_other; 191 Elf64_Word vna_name; 192 Elf64_Word vna_next; 193 } Elf64_Vernaux; 194 195 /* Relocation table entry for relative (in section of type SHT_RELR). */ 196 typedef Elf32_Word Elf32_Relr; 197 typedef Elf64_Xword Elf64_Relr; 198 199 /* http://www.sco.com/developers/gabi/latest/ch5.dynamic.html */ 200 #define DF_ORIGIN 0x00000001 201 #define DF_SYMBOLIC 0x00000002 202 #define DF_TEXTREL 0x00000004 203 #define DF_BIND_NOW 0x00000008 204 #define DF_STATIC_TLS 0x00000010 205 206 #define DF_1_NOW 0x00000001 /* Perform complete relocation processing. */ 207 #define DF_1_GLOBAL 0x00000002 /* implies RTLD_GLOBAL */ 208 #define DF_1_GROUP 0x00000004 209 #define DF_1_NODELETE 0x00000008 /* implies RTLD_NODELETE */ 210 #define DF_1_LOADFLTR 0x00000010 211 #define DF_1_INITFIRST 0x00000020 212 #define DF_1_NOOPEN 0x00000040 /* Object can not be used with dlopen(3) */ 213 #define DF_1_ORIGIN 0x00000080 214 #define DF_1_DIRECT 0x00000100 215 #define DF_1_TRANS 0x00000200 216 #define DF_1_INTERPOSE 0x00000400 217 #define DF_1_NODEFLIB 0x00000800 218 #define DF_1_NODUMP 0x00001000 /* Object cannot be dumped with dldump(3) */ 219 #define DF_1_CONFALT 0x00002000 220 #define DF_1_ENDFILTEE 0x00004000 221 #define DF_1_DISPRELDNE 0x00008000 222 #define DF_1_DISPRELPND 0x00010000 223 #define DF_1_NODIRECT 0x00020000 224 #define DF_1_IGNMULDEF 0x00040000 /* Internal use */ 225 #define DF_1_NOKSYMS 0x00080000 /* Internal use */ 226 #define DF_1_NOHDR 0x00100000 /* Internal use */ 227 #define DF_1_EDITED 0x00200000 228 #define DF_1_NORELOC 0x00400000 /* Internal use */ 229 #define DF_1_SYMINTPOSE 0x00800000 230 #define DF_1_GLOBAUDIT 0x01000000 231 #define DF_1_SINGLETON 0x02000000 232 #define DF_1_STUB 0x04000000 233 #define DF_1_PIE 0x08000000 234 235 /* http://www.sco.com/developers/gabi/latest/ch5.dynamic.html */ 236 #define DT_BIND_NOW 24 237 #define DT_INIT_ARRAY 25 238 #define DT_FINI_ARRAY 26 239 #define DT_INIT_ARRAYSZ 27 240 #define DT_FINI_ARRAYSZ 28 241 #define DT_RUNPATH 29 242 #define DT_FLAGS 30 243 /* glibc and BSD disagree for DT_ENCODING; glibc looks wrong. */ 244 #define DT_PREINIT_ARRAY 32 245 #define DT_PREINIT_ARRAYSZ 33 246 #define DT_RELRSZ 35 247 #define DT_RELR 36 248 #define DT_RELRENT 37 249 250 #define DT_GNU_HASH 0x6ffffef5 251 #define DT_TLSDESC_PLT 0x6ffffef6 252 #define DT_TLSDESC_GOT 0x6ffffef7 253 254 /* http://www.sco.com/developers/gabi/latest/ch4.eheader.html */ 255 #define EI_ABIVERSION 8 256 #undef EI_PAD 257 #define EI_PAD 9 258 259 /* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */ 260 #define ELFCOMPRESS_ZLIB 1 261 #define ELFCOMPRESS_LOOS 0x60000000 262 #define ELFCOMPRESS_HIOS 0x6fffffff 263 #define ELFCOMPRESS_LOPROC 0x70000000 264 #define ELFCOMPRESS_HIPROC 0x7fffffff 265 266 /* http://www.sco.com/developers/gabi/latest/ch4.eheader.html */ 267 #define ELFOSABI_SYSV 0 /* Synonym for ELFOSABI_NONE used by valgrind. */ 268 #define ELFOSABI_HPUX 1 269 #define ELFOSABI_NETBSD 2 270 #define ELFOSABI_GNU 3 /* Synonym for ELFOSABI_LINUX. */ 271 #define ELFOSABI_SOLARIS 6 272 #define ELFOSABI_AIX 7 273 #define ELFOSABI_IRIX 8 274 #define ELFOSABI_FREEBSD 9 275 #define ELFOSABI_TRU64 10 276 #define ELFOSABI_MODESTO 11 277 #define ELFOSABI_OPENBSD 12 278 #define ELFOSABI_OPENVMS 13 279 #define ELFOSABI_NSK 14 280 #define ELFOSABI_AROS 15 281 #define ELFOSABI_FENIXOS 16 282 #define ELFOSABI_CLOUDABI 17 283 #define ELFOSABI_OPENVOS 18 284 #define ELFOSABI_ARM_AEABI 64 285 286 /* http://www.sco.com/developers/gabi/latest/ch4.reloc.html */ 287 #define ELF32_R_INFO(sym, type) ((((Elf32_Word)sym) << 8) | ((type) & 0xff)) 288 #define ELF64_R_INFO(sym, type) ((((Elf64_Xword)sym) << 32) | ((type) & 0xffffffff)) 289 290 /* http://www.sco.com/developers/gabi/latest/ch4.symtab.html */ 291 #undef ELF_ST_TYPE 292 #define ELF_ST_TYPE(x) ((x) & 0xf) 293 #define ELF_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf)) 294 #define ELF32_ST_INFO(b,t) ELF_ST_INFO(b,t) 295 #define ELF64_ST_INFO(b,t) ELF_ST_INFO(b,t) 296 297 /* http://www.sco.com/developers/gabi/latest/ch4.eheader.html */ 298 #define EM_S370 9 299 #define EM_VPP500 17 300 #define EM_960 19 301 #define EM_V800 36 302 #define EM_FR20 37 303 #define EM_RH32 38 304 #define EM_RCE 39 305 #define EM_FAKE_ALPHA 41 306 #define EM_TRICORE 44 307 #define EM_ARC 45 308 #define EM_H8_300H 47 309 #define EM_H8S 48 310 #define EM_H8_500 49 311 #define EM_MIPS_X 51 312 #define EM_COLDFIRE 52 313 #define EM_68HC12 53 314 #define EM_MMA 54 315 #define EM_PCP 55 316 #define EM_NCPU 56 317 #define EM_NDR1 57 318 #define EM_STARCORE 58 319 #define EM_ME16 59 320 #define EM_ST100 60 321 #define EM_TINYJ 61 322 #define EM_PDSP 63 323 #define EM_PDP10 64 324 #define EM_PDP11 65 325 #define EM_FX66 66 326 #define EM_ST9PLUS 67 327 #define EM_ST7 68 328 #define EM_68HC16 69 329 #define EM_68HC11 70 330 #define EM_68HC08 71 331 #define EM_68HC05 72 332 #define EM_SVX 73 333 #define EM_ST19 74 334 #define EM_VAX 75 335 #define EM_JAVELIN 77 336 #define EM_FIREPATH 78 337 #define EM_ZSP 79 338 #define EM_MMIX 80 339 #define EM_HUANY 81 340 #define EM_PRISM 82 341 #define EM_AVR 83 342 #define EM_FR30 84 343 #define EM_D10V 85 344 #define EM_D30V 86 345 #define EM_V850 87 346 #define EM_MN10200 90 347 #define EM_PJ 91 348 #define EM_ARC_COMPACT 93 349 #define EM_XTENSA 94 350 #define EM_VIDEOCORE 95 351 #define EM_TMM_GPP 96 352 #define EM_NS32K 97 353 #define EM_TPC 98 354 #define EM_SNP1K 99 355 #define EM_ST200 100 356 #define EM_IP2K 101 357 #define EM_MAX 102 358 #define EM_CR 103 359 #define EM_F2MC16 104 360 #define EM_MSP430 105 361 #define EM_SE_C33 107 362 #define EM_SEP 108 363 #define EM_ARCA 109 364 #define EM_UNICORE 110 365 #define EM_EXCESS 111 366 #define EM_DXP 112 367 #define EM_CRX 114 368 #define EM_XGATE 115 369 #define EM_C166 116 370 #define EM_M16C 117 371 #define EM_DSPIC30F 118 372 #define EM_CE 119 373 #define EM_M32C 120 374 #define EM_TSK3000 131 375 #define EM_RS08 132 376 #define EM_SHARC 133 377 #define EM_ECOG2 134 378 #define EM_SCORE7 135 379 #define EM_DSP24 136 380 #define EM_VIDEOCORE3 137 381 #define EM_LATTICEMICO32 138 382 #define EM_SE_C17 139 383 #define EM_TI_C2000 141 384 #define EM_TI_C5500 142 385 #define EM_MMDSP_PLUS 160 386 #define EM_CYPRESS_M8C 161 387 #define EM_R32C 162 388 #define EM_TRIMEDIA 163 389 #define EM_QDSP6 164 390 #define EM_8051 165 391 #define EM_STXP7X 166 392 #define EM_NDS32 167 393 #define EM_ECOG1 168 394 #define EM_ECOG1X 168 395 #define EM_MAXQ30 169 396 #define EM_XIMO16 170 397 #define EM_MANIK 171 398 #define EM_CRAYNV2 172 399 #define EM_RX 173 400 #define EM_METAG 174 401 #define EM_MCST_ELBRUS 175 402 #define EM_ECOG16 176 403 #define EM_CR16 177 404 #define EM_ETPU 178 405 #define EM_SLE9X 179 406 #define EM_L10M 180 407 #define EM_K10M 181 408 #define EM_AVR32 185 409 #define EM_STM8 186 410 #define EM_TILE64 187 411 #define EM_CUDA 190 412 #define EM_CLOUDSHIELD 192 413 #define EM_COREA_1ST 193 414 #define EM_COREA_2ND 194 415 #define EM_ARC_COMPACT2 195 416 #define EM_OPEN8 196 417 #define EM_RL78 197 418 #define EM_VIDEOCORE5 198 419 #define EM_78KOR 199 420 #define EM_56800EX 200 421 #define EM_BA1 201 422 #define EM_BA2 202 423 #define EM_XCORE 203 424 #define EM_MCHP_PIC 204 425 #define EM_INTEL205 205 426 #define EM_INTEL206 206 427 #define EM_INTEL207 207 428 #define EM_INTEL208 208 429 #define EM_INTEL209 209 430 #define EM_KM32 210 431 #define EM_KMX32 211 432 #define EM_KMX16 212 433 #define EM_KMX8 213 434 #define EM_KVARC 214 435 #define EM_CDP 215 436 #define EM_COGE 216 437 #define EM_COOL 217 438 #define EM_NORC 218 439 #define EM_CSR_KALIMBA 219 440 #define EM_Z80 220 441 #define EM_VISIUM 221 442 #define EM_FT32 222 443 #define EM_MOXIE 223 444 #define EM_AMDGPU 224 445 #define EM_RISCV 243 446 447 /* http://www.sco.com/developers/gabi/latest/ch4.eheader.html */ 448 #define ET_LOOS 0xfe00 449 #define ET_HIOS 0xfeff 450 451 /* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */ 452 #define GRP_COMDAT 0x1 453 #define GRP_MASKOS 0x0ff00000 454 #define GRP_MASKPROC 0xf0000000 455 456 /* http://www.sco.com/developers/gabi/latest/ch5.pheader.html */ 457 #define PF_X 0x1 458 #define PF_W 0x2 459 #define PF_R 0x4 460 #define PF_MASKOS 0x0ff00000 461 #define PF_MASKPROC 0xf0000000 462 463 #define PT_GNU_RELRO 0x6474e552 464 465 #define STB_LOOS 10 466 #define STB_HIOS 12 467 #define STB_LOPROC 13 468 #define STB_HIPROC 15 469 470 /* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */ 471 #define SHF_MERGE 0x10 472 #define SHF_STRINGS 0x20 473 #define SHF_INFO_LINK 0x40 474 #define SHF_LINK_ORDER 0x80 475 #define SHF_OS_NONCONFORMING 0x100 476 #define SHF_GROUP 0x200 477 #define SHF_TLS 0x400 478 #define SHF_COMPRESSED 0x800 479 #define SHF_MASKOS 0x0ff00000 480 #define SHF_MASKPROC 0xf0000000 481 482 /* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */ 483 #define SHN_LOOS 0xff20 484 #define SHN_HIOS 0xff3f 485 #define SHN_XINDEX 0xffff 486 487 /* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */ 488 #define SHT_INIT_ARRAY 14 489 #define SHT_FINI_ARRAY 15 490 #define SHT_PREINIT_ARRAY 16 491 #define SHT_GROUP 17 492 #define SHT_SYMTAB_SHNDX 18 493 #define SHT_RELR 19 494 #undef SHT_NUM 495 #define SHT_NUM 20 496 #define SHT_LOOS 0x60000000 497 #define SHT_HIOS 0x6fffffff 498 499 /* http://www.sco.com/developers/gabi/latest/ch4.symtab.html */ 500 #define STN_UNDEF 0 501 502 /* http://www.sco.com/developers/gabi/latest/ch4.symtab.html */ 503 #define STT_GNU_IFUNC 10 504 #define STT_LOOS 10 505 #define STT_HIOS 12 506 #define STT_LOPROC 13 507 #define STT_HIPROC 15 508 509 /* http://www.sco.com/developers/gabi/latest/ch4.symtab.html */ 510 #define STV_DEFAULT 0 511 #define STV_INTERNAL 1 512 #define STV_HIDDEN 2 513 #define STV_PROTECTED 3 514 515 /* The kernel uses NT_PRFPREG but glibc also offers NT_FPREGSET */ 516 #define NT_FPREGSET NT_PRFPREG 517 518 #define ELF_NOTE_GNU "GNU" 519 520 #define NT_GNU_BUILD_ID 3 521 522 #define VER_FLG_BASE 0x1 523 #define VER_FLG_WEAK 0x2 524 525 #define VER_NDX_LOCAL 0 526 #define VER_NDX_GLOBAL 1 527 528 /* 529 * Experimental support for SHT_RELR sections. For details, see proposal 530 * at https://groups.google.com/forum/#!topic/generic-abi/bX460iggiKg. 531 * 532 * This was eventually replaced by SHT_RELR and DT_RELR (which are identical 533 * other than their different constants), but those constants are only 534 * supported by the OS in API levels >= 30. 535 */ 536 #define SHT_ANDROID_RELR 0x6fffff00 537 #define DT_ANDROID_RELR 0x6fffe000 538 #define DT_ANDROID_RELRSZ 0x6fffe001 539 #define DT_ANDROID_RELRENT 0x6fffe003 540 #define DT_ANDROID_RELRCOUNT 0x6fffe005 541 542 /* 543 * Android compressed REL/RELA sections. These were generated by the relocation 544 * packer in old versions of Android, and can be generated directly by lld 545 * with https://reviews.llvm.org/D39152. 546 * 547 * This was replaced by SHT_ANDROID_RELR in API level 28 (but is supported 548 * in all API levels >= 23). 549 */ 550 #define SHT_ANDROID_REL 0x60000001 551 #define SHT_ANDROID_RELA 0x60000002 552 #define DT_ANDROID_REL 0x6000000f // DT_LOOS + 2 553 #define DT_ANDROID_RELSZ 0x60000010 // DT_LOOS + 3 554 #define DT_ANDROID_RELA 0x60000011 // DT_LOOS + 4 555 #define DT_ANDROID_RELASZ 0x60000012 // DT_LOOS + 5 556