1 /* 2 * Copyright 2002-2016 Haiku, Inc. All rights reserved. 3 * Distributed under the terms of the MIT License. 4 */ 5 #ifndef _ELF_H 6 #define _ELF_H 7 8 9 #include <SupportDefs.h> 10 #include <ByteOrder.h> 11 12 13 typedef uint32 Elf32_Addr; 14 typedef uint16 Elf32_Half; 15 typedef uint32 Elf32_Off; 16 typedef int32 Elf32_Sword; 17 typedef uint32 Elf32_Word; 18 19 typedef Elf32_Half Elf32_Versym; 20 21 typedef uint64 Elf64_Addr; 22 typedef uint64 Elf64_Off; 23 typedef uint16 Elf64_Half; 24 typedef uint32 Elf64_Word; 25 typedef int32 Elf64_Sword; 26 typedef uint64 Elf64_Xword; 27 typedef int64 Elf64_Sxword; 28 29 typedef Elf64_Half Elf64_Versym; 30 31 32 /*** ELF header ***/ 33 34 #define EI_NIDENT 16 35 36 typedef struct { 37 uint8 e_ident[EI_NIDENT]; 38 Elf32_Half e_type; 39 Elf32_Half e_machine; 40 Elf32_Word e_version; 41 Elf32_Addr e_entry; 42 Elf32_Off e_phoff; 43 Elf32_Off e_shoff; 44 Elf32_Word e_flags; 45 Elf32_Half e_ehsize; 46 Elf32_Half e_phentsize; 47 Elf32_Half e_phnum; 48 Elf32_Half e_shentsize; 49 Elf32_Half e_shnum; 50 Elf32_Half e_shstrndx; 51 52 #ifdef __cplusplus 53 bool IsHostEndian() const; 54 #endif 55 } Elf32_Ehdr; 56 57 typedef struct { 58 uint8 e_ident[EI_NIDENT]; 59 Elf64_Half e_type; 60 Elf64_Half e_machine; 61 Elf64_Word e_version; 62 Elf64_Addr e_entry; 63 Elf64_Off e_phoff; 64 Elf64_Off e_shoff; 65 Elf64_Word e_flags; 66 Elf64_Half e_ehsize; 67 Elf64_Half e_phentsize; 68 Elf64_Half e_phnum; 69 Elf64_Half e_shentsize; 70 Elf64_Half e_shnum; 71 Elf64_Half e_shstrndx; 72 73 #ifdef __cplusplus 74 bool IsHostEndian() const; 75 #endif 76 } Elf64_Ehdr; 77 78 /* e_ident[] indices */ 79 #define EI_MAG0 0 80 #define EI_MAG1 1 81 #define EI_MAG2 2 82 #define EI_MAG3 3 83 #define EI_CLASS 4 84 #define EI_DATA 5 85 #define EI_VERSION 6 86 #define EI_PAD 7 87 88 /* Values for the magic number bytes. */ 89 #define ELFMAG0 0x7f 90 #define ELFMAG1 'E' 91 #define ELFMAG2 'L' 92 #define ELFMAG3 'F' 93 #define ELFMAG "\x7f""ELF" 94 #define SELFMAG 4 95 96 /* e_ident */ 97 #define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \ 98 (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \ 99 (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \ 100 (ehdr).e_ident[EI_MAG3] == ELFMAG3) 101 102 /* e_type (Object file type) */ 103 #define ET_NONE 0 /* No file type */ 104 #define ET_REL 1 /* Relocatable file */ 105 #define ET_EXEC 2 /* Executable file */ 106 #define ET_DYN 3 /* Shared-object file */ 107 #define ET_CORE 4 /* Core file */ 108 #define ET_LOOS 0xfe00 /* OS-specific range start */ 109 #define ET_HIOS 0xfeff /* OS-specific range end */ 110 #define ET_LOPROC 0xff00 /* Processor-specific range start */ 111 #define ET_HIPROC 0xffff /* Processor-specific range end */ 112 113 /* e_machine (Architecture) */ 114 #define EM_NONE 0 /* No machine */ 115 #define EM_M32 1 /* AT&T WE 32100 */ 116 #define EM_SPARC 2 /* Sparc */ 117 #define EM_386 3 /* Intel 80386 */ 118 #define EM_68K 4 /* Motorola m68k family */ 119 #define EM_88K 5 /* Motorola m88k family */ 120 #define EM_486 6 /* Intel 80486, Reserved for future use */ 121 #define EM_860 7 /* Intel 80860 */ 122 #define EM_MIPS 8 /* MIPS R3000 (officially, big-endian only) */ 123 #define EM_S370 9 /* IBM System/370 */ 124 #define EM_MIPS_RS3_LE 10 /* MIPS R3000 little-endian, Deprecated */ 125 #define EM_PARISC 15 /* HPPA */ 126 #define EM_VPP550 17 /* Fujitsu VPP500 */ 127 #define EM_SPARC32PLUS 18 /* Sun "v8plus" */ 128 #define EM_960 19 /* Intel 80960 */ 129 #define EM_PPC 20 /* PowerPC */ 130 #define EM_PPC64 21 /* 64-bit PowerPC */ 131 #define EM_S390 22 /* IBM S/390 */ 132 #define EM_V800 36 /* NEC V800 series */ 133 #define EM_FR20 37 /* Fujitsu FR20 */ 134 #define EM_RH32 38 /* TRW RH32 */ 135 #define EM_MCORE 39 /* Motorola M*Core */ 136 #define EM_RCE 39 /* Old name for MCore */ 137 #define EM_ARM 40 /* ARM */ 138 #define EM_OLD_ALPHA 41 /* Digital Alpha */ 139 #define EM_SH 42 /* Renesas / SuperH SH */ 140 #define EM_SPARCV9 43 /* SPARC v9 64-bit */ 141 #define EM_TRICORE 44 /* Siemens Tricore embedded processor */ 142 #define EM_ARC 45 /* ARC Cores */ 143 #define EM_H8_300 46 /* Renesas H8/300 */ 144 #define EM_H8_300H 47 /* Renesas H8/300H */ 145 #define EM_H8S 48 /* Renesas H8S */ 146 #define EM_H8_500 49 /* Renesas H8/500 */ 147 #define EM_IA_64 50 /* Intel IA-64 Processor */ 148 #define EM_MIPS_X 51 /* Stanford MIPS-X */ 149 #define EM_COLDFIRE 52 /* Motorola Coldfire */ 150 #define EM_68HC12 53 /* Motorola M68HC12 */ 151 #define EM_MMA 54 /* Fujitsu Multimedia Accelerator */ 152 #define EM_PCP 55 /* Siemens PCP */ 153 #define EM_NCPU 56 /* Sony nCPU embedded RISC processor */ 154 #define EM_NDR1 57 /* Denso NDR1 microprocesspr */ 155 #define EM_STARCORE 58 /* Motorola Star*Core processor */ 156 #define EM_ME16 59 /* Toyota ME16 processor */ 157 #define EM_ST100 60 /* STMicroelectronics ST100 processor */ 158 #define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ embedded processor */ 159 #define EM_X86_64 62 /* Advanced Micro Devices X86-64 processor */ 160 #define EM_PDSP 63 /* Sony DSP Processor */ 161 #define EM_FX66 66 /* Siemens FX66 microcontroller */ 162 #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */ 163 #define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */ 164 #define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */ 165 #define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */ 166 #define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */ 167 #define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */ 168 #define EM_SVX 73 /* Silicon Graphics SVx */ 169 #define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */ 170 #define EM_VAX 75 /* Digital VAX */ 171 #define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ 172 #define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded processor */ 173 #define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */ 174 #define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */ 175 #define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */ 176 #define EM_HUANY 81 /* Harvard University machine-independent object files */ 177 #define EM_PRISM 82 /* SiTera Prism */ 178 #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ 179 #define EM_FR30 84 /* Fujitsu FR30 */ 180 #define EM_D10V 85 /* Mitsubishi D10V */ 181 #define EM_D30V 86 /* Mitsubishi D30V */ 182 #define EM_V850 87 /* NEC v850 */ 183 #define EM_M32R 88 /* Mitsubishi M32R */ 184 #define EM_MN10300 89 /* Matsushita MN10300 */ 185 #define EM_MN10200 90 /* Matsushita MN10200 */ 186 #define EM_PJ 91 /* picoJava */ 187 #define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ 188 #define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ 189 #define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ 190 #define EM_VIDCORE 95 /* Alphamosaic VideoCore */ 191 #define EM_CR 103 /* Nat. Semi. CompactRISC microprocessor */ 192 #define EM_BLACKFIN 106 /* Analog Devices Blackfin (DSP) processor */ 193 #define EM_ARCA 109 /* Arca RISC Microprocessor */ 194 #define EM_VIDCORE3 137 /* Broadcom VideoCore III */ 195 #define EM_ARM64 183 /* ARM 64 bit */ 196 #define EM_AARCH64 EM_ARM64 197 #define EM_AVR32 185 /* AVR-32 */ 198 #define EM_STM8 186 /* ST STM8S */ 199 #define EM_CUDA 190 /* Nvidia CUDA */ 200 #define EM_VIDCORE5 198 /* Broadcom VideoCore V */ 201 #define EM_NORC 218 /* Nanoradio Optimized RISC */ 202 #define EM_AMDGPU 224 /* AMD GPU */ 203 #define EM_RISCV 243 /* RISC-V */ 204 #define EM_BPF 247 /* Linux kernel bpf virtual machine */ 205 206 #define EM_ALPHA 0x9026 /* Digital Alpha (nonstandard, but the value 207 everyone uses) */ 208 209 /* architecture class (EI_CLASS) */ 210 #define ELFCLASSNONE 0 211 #define ELFCLASS32 1 212 #define ELFCLASS64 2 213 214 /* endian (EI_DATA) */ 215 #define ELFDATANONE 0 /* invalid */ 216 #define ELFDATA2LSB 1 /* little endian */ 217 #define ELFDATA2MSB 2 /* big endian */ 218 219 /* ELF version (EI_VERSION) */ 220 #define EV_NONE 0 /* invalid */ 221 #define EV_CURRENT 1 /* current version */ 222 223 /*** section header ***/ 224 225 typedef struct { 226 Elf32_Word sh_name; 227 Elf32_Word sh_type; 228 Elf32_Word sh_flags; 229 Elf32_Addr sh_addr; 230 Elf32_Off sh_offset; 231 Elf32_Word sh_size; 232 Elf32_Word sh_link; 233 Elf32_Word sh_info; 234 Elf32_Word sh_addralign; 235 Elf32_Word sh_entsize; 236 } Elf32_Shdr; 237 238 typedef struct { 239 Elf64_Word sh_name; 240 Elf64_Word sh_type; 241 Elf64_Xword sh_flags; 242 Elf64_Addr sh_addr; 243 Elf64_Off sh_offset; 244 Elf64_Xword sh_size; 245 Elf64_Word sh_link; 246 Elf64_Word sh_info; 247 Elf64_Xword sh_addralign; 248 Elf64_Xword sh_entsize; 249 } Elf64_Shdr; 250 251 /* special section indices */ 252 #define SHN_UNDEF 0 253 #define SHN_LORESERVE 0xff00 254 #define SHN_LOPROC 0xff00 255 #define SHN_HIPROC 0xff1f 256 #define SHN_ABS 0xfff1 257 #define SHN_COMMON 0xfff2 258 #define SHN_HIRESERVE 0xffff 259 260 /* section header type */ 261 #define SHT_NULL 0 262 #define SHT_PROGBITS 1 263 #define SHT_SYMTAB 2 264 #define SHT_STRTAB 3 265 #define SHT_RELA 4 266 #define SHT_HASH 5 267 #define SHT_DYNAMIC 6 268 #define SHT_NOTE 7 269 #define SHT_NOBITS 8 270 #define SHT_REL 9 271 #define SHT_SHLIB 10 272 #define SHT_DYNSYM 11 273 274 #define SHT_GNU_verdef 0x6ffffffd /* version definition section */ 275 #define SHT_GNU_verneed 0x6ffffffe /* version needs section */ 276 #define SHT_GNU_versym 0x6fffffff /* version symbol table */ 277 278 #define SHT_LOPROC 0x70000000 279 #define SHT_HIPROC 0x7fffffff 280 #define SHT_LOUSER 0x80000000 281 #define SHT_HIUSER 0xffffffff 282 283 /* section header flags */ 284 #define SHF_WRITE 1 285 #define SHF_ALLOC 2 286 #define SHF_EXECINSTR 4 287 288 #define SHF_MASKPROC 0xf0000000 289 290 291 /*** program header ***/ 292 293 typedef struct { 294 Elf32_Word p_type; 295 Elf32_Off p_offset; /* offset from the beginning of the file of the segment */ 296 Elf32_Addr p_vaddr; /* virtual address for the segment in memory */ 297 Elf32_Addr p_paddr; 298 Elf32_Word p_filesz; /* the size of the segment in the file */ 299 Elf32_Word p_memsz; /* the size of the segment in memory */ 300 Elf32_Word p_flags; 301 Elf32_Word p_align; 302 303 #ifdef __cplusplus 304 bool IsReadWrite() const; 305 bool IsExecutable() const; 306 #endif 307 } Elf32_Phdr; 308 309 typedef struct { 310 Elf64_Word p_type; 311 Elf64_Word p_flags; 312 Elf64_Off p_offset; /* offset from the beginning of the file of the segment */ 313 Elf64_Addr p_vaddr; /* virtual address for the segment in memory */ 314 Elf64_Addr p_paddr; 315 Elf64_Xword p_filesz; /* the size of the segment in the file */ 316 Elf64_Xword p_memsz; /* the size of the segment in memory */ 317 Elf64_Xword p_align; 318 319 #ifdef __cplusplus 320 bool IsReadWrite() const; 321 bool IsExecutable() const; 322 #endif 323 } Elf64_Phdr; 324 325 /* program header segment types */ 326 #define PT_NULL 0 327 #define PT_LOAD 1 328 #define PT_DYNAMIC 2 329 #define PT_INTERP 3 330 #define PT_NOTE 4 331 #define PT_SHLIB 5 332 #define PT_PHDR 6 333 #define PT_TLS 7 334 #define PT_EH_FRAME 0x6474e550 335 #define PT_STACK 0x6474e551 336 #define PT_RELRO 0x6474e552 337 338 #define PT_LOPROC 0x70000000 339 #define PT_ARM_UNWIND 0x70000001 340 #define PT_HIPROC 0x7fffffff 341 342 /* program header segment flags */ 343 #define PF_EXECUTE 0x1 344 #define PF_WRITE 0x2 345 #define PF_READ 0x4 346 #define PF_PROTECTION_MASK (PF_EXECUTE | PF_WRITE | PF_READ) 347 348 #define PF_MASKPROC 0xf0000000 349 350 351 /* symbol table entry */ 352 353 typedef struct { 354 Elf32_Word st_name; 355 Elf32_Addr st_value; 356 Elf32_Word st_size; 357 uint8 st_info; 358 uint8 st_other; 359 Elf32_Half st_shndx; 360 361 #ifdef __cplusplus 362 uint8 Bind() const; 363 uint8 Type() const; 364 void SetInfo(uint8 bind, uint8 type); 365 #endif 366 } Elf32_Sym; 367 368 typedef struct { 369 Elf64_Word st_name; 370 uint8 st_info; 371 uint8 st_other; 372 Elf64_Half st_shndx; 373 Elf64_Addr st_value; 374 Elf64_Xword st_size; 375 376 #ifdef __cplusplus 377 uint8 Bind() const; 378 uint8 Type() const; 379 void SetInfo(uint8 bind, uint8 type); 380 #endif 381 } Elf64_Sym; 382 383 #define ELF32_ST_BIND(i) ((i) >> 4) 384 #define ELF32_ST_TYPE(i) ((i) & 0xf) 385 #define ELF32_ST_INFO(b, t) (((b) << 4) + ((t) & 0xf)) 386 387 #define ELF64_ST_BIND(i) ((i) >> 4) 388 #define ELF64_ST_TYPE(i) ((i) & 0xf) 389 #define ELF64_ST_INFO(b, t) (((b) << 4) + ((t) & 0xf)) 390 391 /* symbol types */ 392 #define STT_NOTYPE 0 393 #define STT_OBJECT 1 394 #define STT_FUNC 2 395 #define STT_SECTION 3 396 #define STT_FILE 4 397 #define STT_TLS 6 398 #define STT_LOPROC 13 399 #define STT_HIPROC 15 400 401 /* symbol binding */ 402 #define STB_LOCAL 0 403 #define STB_GLOBAL 1 404 #define STB_WEAK 2 405 #define STB_LOPROC 13 406 #define STB_HIPROC 15 407 408 /* special symbol indices */ 409 #define STN_UNDEF 0 410 411 412 /* relocation table entry */ 413 414 typedef struct { 415 Elf32_Addr r_offset; 416 Elf32_Word r_info; 417 418 #ifdef __cplusplus 419 uint8 SymbolIndex() const; 420 uint8 Type() const; 421 #endif 422 } Elf32_Rel; 423 424 typedef struct { 425 Elf64_Addr r_offset; 426 Elf64_Xword r_info; 427 428 #ifdef __cplusplus 429 uint8 SymbolIndex() const; 430 uint8 Type() const; 431 #endif 432 } Elf64_Rel; 433 434 #ifdef __cplusplus 435 typedef struct Elf32_Rela : public Elf32_Rel { 436 #else 437 typedef struct { 438 Elf32_Addr r_offset; 439 Elf32_Word r_info; 440 #endif 441 Elf32_Sword r_addend; 442 } Elf32_Rela; 443 444 #ifdef __cplusplus 445 typedef struct Elf64_Rela : public Elf64_Rel { 446 #else 447 typedef struct { 448 Elf64_Addr r_offset; 449 Elf64_Xword r_info; 450 #endif 451 Elf64_Sxword r_addend; 452 } Elf64_Rela; 453 454 #define ELF32_R_SYM(i) ((i) >> 8) 455 #define ELF32_R_TYPE(i) ((unsigned char)(i)) 456 #define ELF32_R_INFO(s, t) (((s) << 8) + (unsigned char)(t)) 457 458 #define ELF64_R_SYM(i) ((i) >> 32) 459 #define ELF64_R_TYPE(i) ((i) & 0xffffffffL) 460 #define ELF64_R_INFO(s, t) ((((Elf64_Xword)(s)) << 32) + ((t) & 0xffffffffL)) 461 462 463 /* dynamic section entry */ 464 465 typedef struct { 466 Elf32_Sword d_tag; 467 union { 468 Elf32_Word d_val; 469 Elf32_Addr d_ptr; 470 } d_un; 471 } Elf32_Dyn; 472 473 typedef struct { 474 Elf64_Sxword d_tag; 475 union { 476 Elf64_Xword d_val; 477 Elf64_Addr d_ptr; 478 } d_un; 479 } Elf64_Dyn; 480 481 /* dynamic entry type */ 482 #define DT_NULL 0 483 #define DT_NEEDED 1 484 #define DT_PLTRELSZ 2 485 #define DT_PLTGOT 3 486 #define DT_HASH 4 487 #define DT_STRTAB 5 488 #define DT_SYMTAB 6 489 #define DT_RELA 7 490 #define DT_RELASZ 8 491 #define DT_RELAENT 9 492 #define DT_STRSZ 10 493 #define DT_SYMENT 11 494 #define DT_INIT 12 495 #define DT_FINI 13 496 #define DT_SONAME 14 497 #define DT_RPATH 15 498 #define DT_SYMBOLIC 16 499 #define DT_REL 17 500 #define DT_RELSZ 18 501 #define DT_RELENT 19 502 #define DT_PLTREL 20 503 #define DT_DEBUG 21 504 #define DT_TEXTREL 22 505 #define DT_JMPREL 23 506 #define DT_BIND_NOW 24 /* no lazy binding */ 507 #define DT_INIT_ARRAY 25 /* init function array */ 508 #define DT_FINI_ARRAY 26 /* termination function array */ 509 #define DT_INIT_ARRAYSZ 27 /* init function array size */ 510 #define DT_FINI_ARRAYSZ 28 /* termination function array size */ 511 #define DT_RUNPATH 29 /* library search path (supersedes DT_RPATH) */ 512 #define DT_FLAGS 30 /* flags (see below) */ 513 #define DT_ENCODING 32 514 #define DT_PREINIT_ARRAY 32 /* preinitialization array */ 515 #define DT_PREINIT_ARRAYSZ 33 /* preinitialization array size */ 516 517 #define DT_VERSYM 0x6ffffff0 /* symbol version table */ 518 #define DT_VERDEF 0x6ffffffc /* version definition table */ 519 #define DT_VERDEFNUM 0x6ffffffd /* number of version definitions */ 520 #define DT_VERNEED 0x6ffffffe /* table with needed versions */ 521 #define DT_VERNEEDNUM 0x6fffffff /* number of needed versions */ 522 523 #define DT_LOPROC 0x70000000 524 #define DT_HIPROC 0x7fffffff 525 526 /* DT_FLAGS values */ 527 #define DF_ORIGIN 0x01 528 #define DF_SYMBOLIC 0x02 529 #define DF_TEXTREL 0x04 530 #define DF_BIND_NOW 0x08 531 #define DF_STATIC_TLS 0x10 532 533 534 /* version definition section */ 535 536 typedef struct { 537 Elf32_Half vd_version; /* version revision */ 538 Elf32_Half vd_flags; /* version information flags */ 539 Elf32_Half vd_ndx; /* version index as specified in the 540 symbol version table */ 541 Elf32_Half vd_cnt; /* number of associated verdaux entries */ 542 Elf32_Word vd_hash; /* version name hash value */ 543 Elf32_Word vd_aux; /* byte offset to verdaux array */ 544 Elf32_Word vd_next; /* byte offset to next verdef entry */ 545 } Elf32_Verdef; 546 547 typedef struct { 548 Elf64_Half vd_version; /* version revision */ 549 Elf64_Half vd_flags; /* version information flags */ 550 Elf64_Half vd_ndx; /* version index as specified in the 551 symbol version table */ 552 Elf64_Half vd_cnt; /* number of associated verdaux entries */ 553 Elf64_Word vd_hash; /* version name hash value */ 554 Elf64_Word vd_aux; /* byte offset to verdaux array */ 555 Elf64_Word vd_next; /* byte offset to next verdef entry */ 556 } Elf64_Verdef; 557 558 /* values for vd_version (version revision) */ 559 #define VER_DEF_NONE 0 /* no version */ 560 #define VER_DEF_CURRENT 1 /* current version */ 561 #define VER_DEF_NUM 2 /* given version number */ 562 563 /* values for vd_flags (version information flags) */ 564 #define VER_FLG_BASE 0x1 /* version definition of file itself */ 565 #define VER_FLG_WEAK 0x2 /* weak version identifier */ 566 567 /* values for versym symbol index */ 568 #define VER_NDX_LOCAL 0 /* symbol is local */ 569 #define VER_NDX_GLOBAL 1 /* symbol is global/unversioned */ 570 #define VER_NDX_INITIAL 2 /* initial version -- that's the one given 571 to symbols when a library becomes 572 versioned; handled by the linker (and 573 runtime loader) similar to 574 VER_NDX_GLOBAL */ 575 #define VER_NDX_LORESERVE 0xff00 /* beginning of reserved entries */ 576 #define VER_NDX_ELIMINATE 0xff01 /* symbol is to be eliminated */ 577 578 #define VER_NDX_FLAG_HIDDEN 0x8000 /* flag: version is hidden */ 579 #define VER_NDX_MASK 0x7fff /* mask to get the actual version index */ 580 #define VER_NDX(x) ((x) & VER_NDX_MASK) 581 582 583 /* auxiliary version information */ 584 585 typedef struct { 586 Elf32_Word vda_name; /* string table offset to version or dependency 587 name */ 588 Elf32_Word vda_next; /* byte offset to next verdaux entry */ 589 } Elf32_Verdaux; 590 591 typedef struct { 592 Elf64_Word vda_name; /* string table offset to version or dependency 593 name */ 594 Elf64_Word vda_next; /* byte offset to next verdaux entry */ 595 } Elf64_Verdaux; 596 597 598 /* version dependency section */ 599 600 typedef struct { 601 Elf32_Half vn_version; /* version of structure */ 602 Elf32_Half vn_cnt; /* number of associated vernaux entries */ 603 Elf32_Word vn_file; /* byte offset to file name for this 604 dependency */ 605 Elf32_Word vn_aux; /* byte offset to vernaux array */ 606 Elf32_Word vn_next; /* byte offset to next verneed entry */ 607 } Elf32_Verneed; 608 609 typedef struct { 610 Elf64_Half vn_version; /* version of structure */ 611 Elf64_Half vn_cnt; /* number of associated vernaux entries */ 612 Elf64_Word vn_file; /* byte offset to file name for this 613 dependency */ 614 Elf64_Word vn_aux; /* byte offset to vernaux array */ 615 Elf64_Word vn_next; /* byte offset to next verneed entry */ 616 } Elf64_Verneed; 617 618 /* values for vn_version (version revision) */ 619 #define VER_NEED_NONE 0 /* no version */ 620 #define VER_NEED_CURRENT 1 /* current version */ 621 #define VER_NEED_NUM 2 /* given version number */ 622 623 624 /* auxiliary needed version information */ 625 626 typedef struct { 627 Elf32_Word vna_hash; /* dependency name hash value */ 628 Elf32_Half vna_flags; /* dependency specific information flags */ 629 Elf32_Half vna_other; /* version index as specified in the symbol 630 version table */ 631 Elf32_Word vna_name; /* string table offset to dependency name */ 632 Elf32_Word vna_next; /* byte offset to next vernaux entry */ 633 } Elf32_Vernaux; 634 635 typedef struct { 636 Elf64_Word vna_hash; /* dependency name hash value */ 637 Elf64_Half vna_flags; /* dependency specific information flags */ 638 Elf64_Half vna_other; /* version index as specified in the symbol 639 version table */ 640 Elf64_Word vna_name; /* string table offset to dependency name */ 641 Elf64_Word vna_next; /* byte offset to next vernaux entry */ 642 } Elf64_Vernaux; 643 644 /* values for vna_flags */ 645 #define VER_FLG_WEAK 0x2 /* weak version identifier */ 646 647 648 /*** core files ***/ 649 650 /* note section header */ 651 652 typedef struct { 653 Elf32_Word n_namesz; /* length of the note's name */ 654 Elf32_Word n_descsz; /* length of the note's descriptor */ 655 Elf32_Word n_type; /* note type */ 656 } Elf32_Nhdr; 657 658 typedef struct { 659 Elf64_Word n_namesz; /* length of the note's name */ 660 Elf64_Word n_descsz; /* length of the note's descriptor */ 661 Elf64_Word n_type; /* note type */ 662 } Elf64_Nhdr; 663 664 /* values for note name */ 665 #define ELF_NOTE_CORE "CORE" 666 #define ELF_NOTE_HAIKU "Haiku" 667 668 /* values for note type (n_type) */ 669 /* ELF_NOTE_CORE/... */ 670 #define NT_FILE 0x46494c45 /* mapped files */ 671 672 /* ELF_NOTE_HAIKU/... */ 673 #define NT_TEAM 0x7465616d /* team */ 674 #define NT_AREAS 0x61726561 /* areas */ 675 #define NT_IMAGES 0x696d6167 /* images */ 676 #define NT_THREADS 0x74687264 /* threads */ 677 #define NT_SYMBOLS 0x73796d73 /* symbols */ 678 679 /* NT_TEAM: uint32 entrySize; Elf32_Note_Team; char[] args */ 680 typedef struct { 681 int32 nt_id; /* team ID */ 682 int32 nt_uid; /* team owner ID */ 683 int32 nt_gid; /* team group ID */ 684 } Elf32_Note_Team; 685 686 typedef Elf32_Note_Team Elf64_Note_Team; 687 688 /* NT_AREAS: 689 * uint32 count; 690 * uint32 entrySize; 691 * Elf32_Note_Area_Entry[count]; 692 * char[] names 693 */ 694 typedef struct { 695 int32 na_id; /* area ID */ 696 uint32 na_lock; /* lock type (B_NO_LOCK, ...) */ 697 uint32 na_protection; /* protection (B_READ_AREA | ...) */ 698 uint32 na_base; /* area base address */ 699 uint32 na_size; /* area size */ 700 uint32 na_ram_size; /* physical memory used */ 701 } Elf32_Note_Area_Entry; 702 703 /* NT_AREAS: 704 * uint32 count; 705 * uint32 entrySize; 706 * Elf64_Note_Area_Entry[count]; 707 * char[] names 708 */ 709 typedef struct { 710 int32 na_id; /* area ID */ 711 uint32 na_lock; /* lock type (B_NO_LOCK, ...) */ 712 uint32 na_protection; /* protection (B_READ_AREA | ...) */ 713 uint32 na_pad1; 714 uint64 na_base; /* area base address */ 715 uint64 na_size; /* area size */ 716 uint64 na_ram_size; /* physical memory used */ 717 } Elf64_Note_Area_Entry; 718 719 /* NT_IMAGES: 720 * uint32 count; 721 * uint32 entrySize; 722 * Elf32_Note_Image_Entry[count]; 723 * char[] names 724 */ 725 typedef struct { 726 int32 ni_id; /* image ID */ 727 int32 ni_type; /* image type (B_APP_IMAGE, ...) */ 728 uint32 ni_init_routine; /* address of init function */ 729 uint32 ni_term_routine; /* address of termination function */ 730 int32 ni_device; /* device ID of mapped file */ 731 int64 ni_node; /* node ID of mapped file */ 732 uint32 ni_text_base; /* base address of text segment */ 733 uint32 ni_text_size; /* size of text segment */ 734 int32 ni_text_delta; /* delta of the text segment relative to 735 load address specified in the ELF file */ 736 uint32 ni_data_base; /* base address of data segment */ 737 uint32 ni_data_size; /* size of data segment */ 738 uint32 ni_symbol_table; /* address of dynamic symbol table */ 739 uint32 ni_symbol_hash; /* address of dynamic symbol hash */ 740 uint32 ni_string_table; /* address of dynamic string table */ 741 } Elf32_Note_Image_Entry; 742 743 /* NT_IMAGES: 744 * uint32 count; 745 * uint32 entrySize; 746 * Elf64_Note_Image_Entry[count]; 747 * char[] names 748 */ 749 typedef struct { 750 int32 ni_id; /* image ID */ 751 int32 ni_type; /* image type (B_APP_IMAGE, ...) */ 752 uint64 ni_init_routine; /* address of init function */ 753 uint64 ni_term_routine; /* address of termination function */ 754 uint32 ni_pad1; 755 int32 ni_device; /* device ID of mapped file */ 756 int64 ni_node; /* node ID of mapped file */ 757 uint64 ni_text_base; /* base address of text segment */ 758 uint64 ni_text_size; /* size of text segment */ 759 int64 ni_text_delta; /* delta of the text segment relative to 760 load address specified in the ELF file */ 761 uint64 ni_data_base; /* base address of data segment */ 762 uint64 ni_data_size; /* size of data segment */ 763 uint64 ni_symbol_table; /* address of dynamic symbol table */ 764 uint64 ni_symbol_hash; /* address of dynamic symbol hash */ 765 uint64 ni_string_table; /* address of dynamic string table */ 766 } Elf64_Note_Image_Entry; 767 768 /* NT_THREADS: 769 * uint32 count; 770 * uint32 entrySize; 771 * uint32 cpuStateSize; 772 * {Elf32_Note_Thread_Entry, uint8[cpuStateSize] cpuState}[count]; 773 * char[] names 774 */ 775 typedef struct { 776 int32 nth_id; /* thread ID */ 777 int32 nth_state; /* thread state (B_THREAD_RUNNING, ...) */ 778 int32 nth_priority; /* thread priority */ 779 uint32 nth_stack_base; /* thread stack base address */ 780 uint32 nth_stack_end; /* thread stack end address */ 781 } Elf32_Note_Thread_Entry; 782 783 /* NT_THREADS: 784 * uint32 count; 785 * uint32 entrySize; 786 * uint32 cpuStateSize; 787 * {Elf64_Note_Thread_Entry, uint8[cpuStateSize] cpuState}[count]; 788 * char[] names 789 */ 790 typedef struct { 791 int32 nth_id; /* thread ID */ 792 int32 nth_state; /* thread state (B_THREAD_RUNNING, ...) */ 793 int32 nth_priority; /* thread priority */ 794 uint32 nth_pad1; 795 uint64 nth_stack_base; /* thread stack base address */ 796 uint64 nth_stack_end; /* thread stack end address */ 797 } Elf64_Note_Thread_Entry; 798 799 /* NT_SYMBOLS: 800 * int32 imageId; 801 * uint32 symbolCount; 802 * uint32 entrySize; 803 * Elf{32,64}_Sym[count]; 804 * char[] strings 805 */ 806 807 808 /*** inline functions ***/ 809 810 #ifdef __cplusplus 811 812 inline bool 813 Elf32_Ehdr::IsHostEndian() const 814 { 815 #if B_HOST_IS_LENDIAN 816 return e_ident[EI_DATA] == ELFDATA2LSB; 817 #elif B_HOST_IS_BENDIAN 818 return e_ident[EI_DATA] == ELFDATA2MSB; 819 #endif 820 } 821 822 823 inline bool 824 Elf64_Ehdr::IsHostEndian() const 825 { 826 #if B_HOST_IS_LENDIAN 827 return e_ident[EI_DATA] == ELFDATA2LSB; 828 #elif B_HOST_IS_BENDIAN 829 return e_ident[EI_DATA] == ELFDATA2MSB; 830 #endif 831 } 832 833 834 inline bool 835 Elf32_Phdr::IsReadWrite() const 836 { 837 return !(~p_flags & (PF_READ | PF_WRITE)); 838 } 839 840 841 inline bool 842 Elf32_Phdr::IsExecutable() const 843 { 844 return (p_flags & PF_EXECUTE) != 0; 845 } 846 847 848 inline bool 849 Elf64_Phdr::IsReadWrite() const 850 { 851 return !(~p_flags & (PF_READ | PF_WRITE)); 852 } 853 854 855 inline bool 856 Elf64_Phdr::IsExecutable() const 857 { 858 return (p_flags & PF_EXECUTE) != 0; 859 } 860 861 862 inline uint8 863 Elf32_Sym::Bind() const 864 { 865 return ELF32_ST_BIND(st_info); 866 } 867 868 869 inline uint8 870 Elf32_Sym::Type() const 871 { 872 return ELF32_ST_TYPE(st_info); 873 } 874 875 876 inline void 877 Elf32_Sym::SetInfo(uint8 bind, uint8 type) 878 { 879 st_info = ELF32_ST_INFO(bind, type); 880 } 881 882 883 inline uint8 884 Elf64_Sym::Bind() const 885 { 886 return ELF64_ST_BIND(st_info); 887 } 888 889 890 inline uint8 891 Elf64_Sym::Type() const 892 { 893 return ELF64_ST_TYPE(st_info); 894 } 895 896 897 inline void 898 Elf64_Sym::SetInfo(uint8 bind, uint8 type) 899 { 900 st_info = ELF64_ST_INFO(bind, type); 901 } 902 903 904 inline uint8 905 Elf32_Rel::SymbolIndex() const 906 { 907 return ELF32_R_SYM(r_info); 908 } 909 910 911 inline uint8 912 Elf32_Rel::Type() const 913 { 914 return ELF32_R_TYPE(r_info); 915 } 916 917 918 inline uint8 919 Elf64_Rel::SymbolIndex() const 920 { 921 return ELF64_R_SYM(r_info); 922 } 923 924 925 inline uint8 926 Elf64_Rel::Type() const 927 { 928 return ELF64_R_TYPE(r_info); 929 } 930 931 #endif /* __cplusplus */ 932 933 934 #endif /* _ELF_H */ 935