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_type (Object file type) */ 97 #define ET_NONE 0 /* No file type */ 98 #define ET_REL 1 /* Relocatable file */ 99 #define ET_EXEC 2 /* Executable file */ 100 #define ET_DYN 3 /* Shared-object file */ 101 #define ET_CORE 4 /* Core file */ 102 #define ET_LOOS 0xfe00 /* OS-specific range start */ 103 #define ET_HIOS 0xfeff /* OS-specific range end */ 104 #define ET_LOPROC 0xff00 /* Processor-specific range start */ 105 #define ET_HIPROC 0xffff /* Processor-specific range end */ 106 107 /* e_machine (Architecture) */ 108 #define EM_NONE 0 /* No machine */ 109 #define EM_M32 1 /* AT&T WE 32100 */ 110 #define EM_SPARC 2 /* Sparc */ 111 #define EM_386 3 /* Intel 80386 */ 112 #define EM_68K 4 /* Motorola m68k family */ 113 #define EM_88K 5 /* Motorola m88k family */ 114 #define EM_486 6 /* Intel 80486, Reserved for future use */ 115 #define EM_860 7 /* Intel 80860 */ 116 #define EM_MIPS 8 /* MIPS R3000 (officially, big-endian only) */ 117 #define EM_S370 9 /* IBM System/370 */ 118 #define EM_MIPS_RS3_LE 10 /* MIPS R3000 little-endian, Deprecated */ 119 #define EM_PARISC 15 /* HPPA */ 120 #define EM_VPP550 17 /* Fujitsu VPP500 */ 121 #define EM_SPARC32PLUS 18 /* Sun "v8plus" */ 122 #define EM_960 19 /* Intel 80960 */ 123 #define EM_PPC 20 /* PowerPC */ 124 #define EM_PPC64 21 /* 64-bit PowerPC */ 125 #define EM_S390 22 /* IBM S/390 */ 126 #define EM_V800 36 /* NEC V800 series */ 127 #define EM_FR20 37 /* Fujitsu FR20 */ 128 #define EM_RH32 38 /* TRW RH32 */ 129 #define EM_MCORE 39 /* Motorola M*Core */ 130 #define EM_RCE 39 /* Old name for MCore */ 131 #define EM_ARM 40 /* ARM */ 132 #define EM_OLD_ALPHA 41 /* Digital Alpha */ 133 #define EM_SH 42 /* Renesas / SuperH SH */ 134 #define EM_SPARCV9 43 /* SPARC v9 64-bit */ 135 #define EM_TRICORE 44 /* Siemens Tricore embedded processor */ 136 #define EM_ARC 45 /* ARC Cores */ 137 #define EM_H8_300 46 /* Renesas H8/300 */ 138 #define EM_H8_300H 47 /* Renesas H8/300H */ 139 #define EM_H8S 48 /* Renesas H8S */ 140 #define EM_H8_500 49 /* Renesas H8/500 */ 141 #define EM_IA_64 50 /* Intel IA-64 Processor */ 142 #define EM_MIPS_X 51 /* Stanford MIPS-X */ 143 #define EM_COLDFIRE 52 /* Motorola Coldfire */ 144 #define EM_68HC12 53 /* Motorola M68HC12 */ 145 #define EM_MMA 54 /* Fujitsu Multimedia Accelerator */ 146 #define EM_PCP 55 /* Siemens PCP */ 147 #define EM_NCPU 56 /* Sony nCPU embedded RISC processor */ 148 #define EM_NDR1 57 /* Denso NDR1 microprocesspr */ 149 #define EM_STARCORE 58 /* Motorola Star*Core processor */ 150 #define EM_ME16 59 /* Toyota ME16 processor */ 151 #define EM_ST100 60 /* STMicroelectronics ST100 processor */ 152 #define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ embedded processor */ 153 #define EM_X86_64 62 /* Advanced Micro Devices X86-64 processor */ 154 #define EM_PDSP 63 /* Sony DSP Processor */ 155 #define EM_FX66 66 /* Siemens FX66 microcontroller */ 156 #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */ 157 #define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */ 158 #define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */ 159 #define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */ 160 #define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */ 161 #define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */ 162 #define EM_SVX 73 /* Silicon Graphics SVx */ 163 #define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */ 164 #define EM_VAX 75 /* Digital VAX */ 165 #define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ 166 #define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded processor */ 167 #define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */ 168 #define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */ 169 #define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */ 170 #define EM_HUANY 81 /* Harvard University machine-independent object files */ 171 #define EM_PRISM 82 /* SiTera Prism */ 172 #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ 173 #define EM_FR30 84 /* Fujitsu FR30 */ 174 #define EM_D10V 85 /* Mitsubishi D10V */ 175 #define EM_D30V 86 /* Mitsubishi D30V */ 176 #define EM_V850 87 /* NEC v850 */ 177 #define EM_M32R 88 /* Mitsubishi M32R */ 178 #define EM_MN10300 89 /* Matsushita MN10300 */ 179 #define EM_MN10200 90 /* Matsushita MN10200 */ 180 #define EM_PJ 91 /* picoJava */ 181 #define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ 182 #define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ 183 #define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ 184 #define EM_VIDCORE 95 /* Alphamosaic VideoCore */ 185 #define EM_CR 103 /* Nat. Semi. CompactRISC microprocessor */ 186 #define EM_BLACKFIN 106 /* Analog Devices Blackfin (DSP) processor */ 187 #define EM_ARCA 109 /* Arca RISC Microprocessor */ 188 #define EM_VIDCORE3 137 /* Broadcom VideoCore III */ 189 #define EM_AARCH64 183 /* ARM 64 bit */ 190 #define EM_AVR32 185 /* AVR-32 */ 191 #define EM_STM8 186 /* ST STM8S */ 192 #define EM_CUDA 190 /* Nvidia CUDA */ 193 #define EM_VIDCORE5 198 /* Broadcom VideoCore V */ 194 #define EM_NORC 218 /* Nanoradio Optimized RISC */ 195 #define EM_AMDGPU 224 /* AMD GPU */ 196 #define EM_RISCV 243 /* RISC-V */ 197 #define EM_BPF 247 /* Linux kernel bpf virtual machine */ 198 199 /* architecture class (EI_CLASS) */ 200 #define ELFCLASSNONE 0 201 #define ELFCLASS32 1 202 #define ELFCLASS64 2 203 204 /* endian (EI_DATA) */ 205 #define ELFDATANONE 0 /* invalid */ 206 #define ELFDATA2LSB 1 /* little endian */ 207 #define ELFDATA2MSB 2 /* big endian */ 208 209 /* ELF version (EI_VERSION) */ 210 #define EV_NONE 0 /* invalid */ 211 #define EV_CURRENT 1 /* current version */ 212 213 /*** section header ***/ 214 215 typedef struct { 216 Elf32_Word sh_name; 217 Elf32_Word sh_type; 218 Elf32_Word sh_flags; 219 Elf32_Addr sh_addr; 220 Elf32_Off sh_offset; 221 Elf32_Word sh_size; 222 Elf32_Word sh_link; 223 Elf32_Word sh_info; 224 Elf32_Word sh_addralign; 225 Elf32_Word sh_entsize; 226 } Elf32_Shdr; 227 228 typedef struct { 229 Elf64_Word sh_name; 230 Elf64_Word sh_type; 231 Elf64_Xword sh_flags; 232 Elf64_Addr sh_addr; 233 Elf64_Off sh_offset; 234 Elf64_Xword sh_size; 235 Elf64_Word sh_link; 236 Elf64_Word sh_info; 237 Elf64_Xword sh_addralign; 238 Elf64_Xword sh_entsize; 239 } Elf64_Shdr; 240 241 /* special section indices */ 242 #define SHN_UNDEF 0 243 #define SHN_LORESERVE 0xff00 244 #define SHN_LOPROC 0xff00 245 #define SHN_HIPROC 0xff1f 246 #define SHN_ABS 0xfff1 247 #define SHN_COMMON 0xfff2 248 #define SHN_HIRESERVE 0xffff 249 250 /* section header type */ 251 #define SHT_NULL 0 252 #define SHT_PROGBITS 1 253 #define SHT_SYMTAB 2 254 #define SHT_STRTAB 3 255 #define SHT_RELA 4 256 #define SHT_HASH 5 257 #define SHT_DYNAMIC 6 258 #define SHT_NOTE 7 259 #define SHT_NOBITS 8 260 #define SHT_REL 9 261 #define SHT_SHLIB 10 262 #define SHT_DYNSYM 11 263 264 #define SHT_GNU_verdef 0x6ffffffd /* version definition section */ 265 #define SHT_GNU_verneed 0x6ffffffe /* version needs section */ 266 #define SHT_GNU_versym 0x6fffffff /* version symbol table */ 267 268 #define SHT_LOPROC 0x70000000 269 #define SHT_HIPROC 0x7fffffff 270 #define SHT_LOUSER 0x80000000 271 #define SHT_HIUSER 0xffffffff 272 273 /* section header flags */ 274 #define SHF_WRITE 1 275 #define SHF_ALLOC 2 276 #define SHF_EXECINSTR 4 277 278 #define SHF_MASKPROC 0xf0000000 279 280 281 /*** program header ***/ 282 283 typedef struct { 284 Elf32_Word p_type; 285 Elf32_Off p_offset; /* offset from the beginning of the file of the segment */ 286 Elf32_Addr p_vaddr; /* virtual address for the segment in memory */ 287 Elf32_Addr p_paddr; 288 Elf32_Word p_filesz; /* the size of the segment in the file */ 289 Elf32_Word p_memsz; /* the size of the segment in memory */ 290 Elf32_Word p_flags; 291 Elf32_Word p_align; 292 293 #ifdef __cplusplus 294 bool IsReadWrite() const; 295 bool IsExecutable() const; 296 #endif 297 } Elf32_Phdr; 298 299 typedef struct { 300 Elf64_Word p_type; 301 Elf64_Word p_flags; 302 Elf64_Off p_offset; /* offset from the beginning of the file of the segment */ 303 Elf64_Addr p_vaddr; /* virtual address for the segment in memory */ 304 Elf64_Addr p_paddr; 305 Elf64_Xword p_filesz; /* the size of the segment in the file */ 306 Elf64_Xword p_memsz; /* the size of the segment in memory */ 307 Elf64_Xword p_align; 308 309 #ifdef __cplusplus 310 bool IsReadWrite() const; 311 bool IsExecutable() const; 312 #endif 313 } Elf64_Phdr; 314 315 /* program header segment types */ 316 #define PT_NULL 0 317 #define PT_LOAD 1 318 #define PT_DYNAMIC 2 319 #define PT_INTERP 3 320 #define PT_NOTE 4 321 #define PT_SHLIB 5 322 #define PT_PHDR 6 323 #define PT_TLS 7 324 #define PT_STACK 0x6474e551 325 #define PT_RELRO 0x6474e552 326 327 #define PT_LOPROC 0x70000000 328 #define PT_ARM_UNWIND 0x70000001 329 #define PT_HIPROC 0x7fffffff 330 331 /* program header segment flags */ 332 #define PF_EXECUTE 0x1 333 #define PF_WRITE 0x2 334 #define PF_READ 0x4 335 #define PF_PROTECTION_MASK (PF_EXECUTE | PF_WRITE | PF_READ) 336 337 #define PF_MASKPROC 0xf0000000 338 339 340 /* symbol table entry */ 341 342 typedef struct { 343 Elf32_Word st_name; 344 Elf32_Addr st_value; 345 Elf32_Word st_size; 346 uint8 st_info; 347 uint8 st_other; 348 Elf32_Half st_shndx; 349 350 #ifdef __cplusplus 351 uint8 Bind() const; 352 uint8 Type() const; 353 void SetInfo(uint8 bind, uint8 type); 354 #endif 355 } Elf32_Sym; 356 357 typedef struct { 358 Elf64_Word st_name; 359 uint8 st_info; 360 uint8 st_other; 361 Elf64_Half st_shndx; 362 Elf64_Addr st_value; 363 Elf64_Xword st_size; 364 365 #ifdef __cplusplus 366 uint8 Bind() const; 367 uint8 Type() const; 368 void SetInfo(uint8 bind, uint8 type); 369 #endif 370 } Elf64_Sym; 371 372 #define ELF32_ST_BIND(i) ((i) >> 4) 373 #define ELF32_ST_TYPE(i) ((i) & 0xf) 374 #define ELF32_ST_INFO(b, t) (((b) << 4) + ((t) & 0xf)) 375 376 #define ELF64_ST_BIND(i) ((i) >> 4) 377 #define ELF64_ST_TYPE(i) ((i) & 0xf) 378 #define ELF64_ST_INFO(b, t) (((b) << 4) + ((t) & 0xf)) 379 380 /* symbol types */ 381 #define STT_NOTYPE 0 382 #define STT_OBJECT 1 383 #define STT_FUNC 2 384 #define STT_SECTION 3 385 #define STT_FILE 4 386 #define STT_TLS 6 387 #define STT_LOPROC 13 388 #define STT_HIPROC 15 389 390 /* symbol binding */ 391 #define STB_LOCAL 0 392 #define STB_GLOBAL 1 393 #define STB_WEAK 2 394 #define STB_LOPROC 13 395 #define STB_HIPROC 15 396 397 /* special symbol indices */ 398 #define STN_UNDEF 0 399 400 401 /* relocation table entry */ 402 403 typedef struct { 404 Elf32_Addr r_offset; 405 Elf32_Word r_info; 406 407 #ifdef __cplusplus 408 uint8 SymbolIndex() const; 409 uint8 Type() const; 410 #endif 411 } Elf32_Rel; 412 413 typedef struct { 414 Elf64_Addr r_offset; 415 Elf64_Xword r_info; 416 417 #ifdef __cplusplus 418 uint8 SymbolIndex() const; 419 uint8 Type() const; 420 #endif 421 } Elf64_Rel; 422 423 #ifdef __cplusplus 424 typedef struct Elf32_Rela : public Elf32_Rel { 425 #else 426 typedef struct { 427 Elf32_Addr r_offset; 428 Elf32_Word r_info; 429 #endif 430 Elf32_Sword r_addend; 431 } Elf32_Rela; 432 433 #ifdef __cplusplus 434 typedef struct Elf64_Rela : public Elf64_Rel { 435 #else 436 typedef struct { 437 Elf64_Addr r_offset; 438 Elf64_Xword r_info; 439 #endif 440 Elf64_Sxword r_addend; 441 } Elf64_Rela; 442 443 #define ELF32_R_SYM(i) ((i) >> 8) 444 #define ELF32_R_TYPE(i) ((unsigned char)(i)) 445 #define ELF32_R_INFO(s, t) (((s) << 8) + (unsigned char)(t)) 446 447 #define ELF64_R_SYM(i) ((i) >> 32) 448 #define ELF64_R_TYPE(i) ((i) & 0xffffffffL) 449 #define ELF64_R_INFO(s, t) ((((Elf64_Xword)(s)) << 32) + ((t) & 0xffffffffL)) 450 451 452 /* dynamic section entry */ 453 454 typedef struct { 455 Elf32_Sword d_tag; 456 union { 457 Elf32_Word d_val; 458 Elf32_Addr d_ptr; 459 } d_un; 460 } Elf32_Dyn; 461 462 typedef struct { 463 Elf64_Sxword d_tag; 464 union { 465 Elf64_Xword d_val; 466 Elf64_Addr d_ptr; 467 } d_un; 468 } Elf64_Dyn; 469 470 /* dynamic entry type */ 471 #define DT_NULL 0 472 #define DT_NEEDED 1 473 #define DT_PLTRELSZ 2 474 #define DT_PLTGOT 3 475 #define DT_HASH 4 476 #define DT_STRTAB 5 477 #define DT_SYMTAB 6 478 #define DT_RELA 7 479 #define DT_RELASZ 8 480 #define DT_RELAENT 9 481 #define DT_STRSZ 10 482 #define DT_SYMENT 11 483 #define DT_INIT 12 484 #define DT_FINI 13 485 #define DT_SONAME 14 486 #define DT_RPATH 15 487 #define DT_SYMBOLIC 16 488 #define DT_REL 17 489 #define DT_RELSZ 18 490 #define DT_RELENT 19 491 #define DT_PLTREL 20 492 #define DT_DEBUG 21 493 #define DT_TEXTREL 22 494 #define DT_JMPREL 23 495 #define DT_BIND_NOW 24 /* no lazy binding */ 496 #define DT_INIT_ARRAY 25 /* init function array */ 497 #define DT_FINI_ARRAY 26 /* termination function array */ 498 #define DT_INIT_ARRAYSZ 27 /* init function array size */ 499 #define DT_FINI_ARRAYSZ 28 /* termination function array size */ 500 #define DT_RUNPATH 29 /* library search path (supersedes DT_RPATH) */ 501 #define DT_FLAGS 30 /* flags (see below) */ 502 #define DT_ENCODING 32 503 #define DT_PREINIT_ARRAY 32 /* preinitialization array */ 504 #define DT_PREINIT_ARRAYSZ 33 /* preinitialization array size */ 505 506 #define DT_VERSYM 0x6ffffff0 /* symbol version table */ 507 #define DT_VERDEF 0x6ffffffc /* version definition table */ 508 #define DT_VERDEFNUM 0x6ffffffd /* number of version definitions */ 509 #define DT_VERNEED 0x6ffffffe /* table with needed versions */ 510 #define DT_VERNEEDNUM 0x6fffffff /* number of needed versions */ 511 512 #define DT_LOPROC 0x70000000 513 #define DT_HIPROC 0x7fffffff 514 515 /* DT_FLAGS values */ 516 #define DF_ORIGIN 0x01 517 #define DF_SYMBOLIC 0x02 518 #define DF_TEXTREL 0x04 519 #define DF_BIND_NOW 0x08 520 #define DF_STATIC_TLS 0x10 521 522 523 /* version definition section */ 524 525 typedef struct { 526 Elf32_Half vd_version; /* version revision */ 527 Elf32_Half vd_flags; /* version information flags */ 528 Elf32_Half vd_ndx; /* version index as specified in the 529 symbol version table */ 530 Elf32_Half vd_cnt; /* number of associated verdaux entries */ 531 Elf32_Word vd_hash; /* version name hash value */ 532 Elf32_Word vd_aux; /* byte offset to verdaux array */ 533 Elf32_Word vd_next; /* byte offset to next verdef entry */ 534 } Elf32_Verdef; 535 536 typedef struct { 537 Elf64_Half vd_version; /* version revision */ 538 Elf64_Half vd_flags; /* version information flags */ 539 Elf64_Half vd_ndx; /* version index as specified in the 540 symbol version table */ 541 Elf64_Half vd_cnt; /* number of associated verdaux entries */ 542 Elf64_Word vd_hash; /* version name hash value */ 543 Elf64_Word vd_aux; /* byte offset to verdaux array */ 544 Elf64_Word vd_next; /* byte offset to next verdef entry */ 545 } Elf64_Verdef; 546 547 /* values for vd_version (version revision) */ 548 #define VER_DEF_NONE 0 /* no version */ 549 #define VER_DEF_CURRENT 1 /* current version */ 550 #define VER_DEF_NUM 2 /* given version number */ 551 552 /* values for vd_flags (version information flags) */ 553 #define VER_FLG_BASE 0x1 /* version definition of file itself */ 554 #define VER_FLG_WEAK 0x2 /* weak version identifier */ 555 556 /* values for versym symbol index */ 557 #define VER_NDX_LOCAL 0 /* symbol is local */ 558 #define VER_NDX_GLOBAL 1 /* symbol is global/unversioned */ 559 #define VER_NDX_INITIAL 2 /* initial version -- that's the one given 560 to symbols when a library becomes 561 versioned; handled by the linker (and 562 runtime loader) similar to 563 VER_NDX_GLOBAL */ 564 #define VER_NDX_LORESERVE 0xff00 /* beginning of reserved entries */ 565 #define VER_NDX_ELIMINATE 0xff01 /* symbol is to be eliminated */ 566 567 #define VER_NDX_FLAG_HIDDEN 0x8000 /* flag: version is hidden */ 568 #define VER_NDX_MASK 0x7fff /* mask to get the actual version index */ 569 #define VER_NDX(x) ((x) & VER_NDX_MASK) 570 571 572 /* auxiliary version information */ 573 574 typedef struct { 575 Elf32_Word vda_name; /* string table offset to version or dependency 576 name */ 577 Elf32_Word vda_next; /* byte offset to next verdaux entry */ 578 } Elf32_Verdaux; 579 580 typedef struct { 581 Elf64_Word vda_name; /* string table offset to version or dependency 582 name */ 583 Elf64_Word vda_next; /* byte offset to next verdaux entry */ 584 } Elf64_Verdaux; 585 586 587 /* version dependency section */ 588 589 typedef struct { 590 Elf32_Half vn_version; /* version of structure */ 591 Elf32_Half vn_cnt; /* number of associated vernaux entries */ 592 Elf32_Word vn_file; /* byte offset to file name for this 593 dependency */ 594 Elf32_Word vn_aux; /* byte offset to vernaux array */ 595 Elf32_Word vn_next; /* byte offset to next verneed entry */ 596 } Elf32_Verneed; 597 598 typedef struct { 599 Elf64_Half vn_version; /* version of structure */ 600 Elf64_Half vn_cnt; /* number of associated vernaux entries */ 601 Elf64_Word vn_file; /* byte offset to file name for this 602 dependency */ 603 Elf64_Word vn_aux; /* byte offset to vernaux array */ 604 Elf64_Word vn_next; /* byte offset to next verneed entry */ 605 } Elf64_Verneed; 606 607 /* values for vn_version (version revision) */ 608 #define VER_NEED_NONE 0 /* no version */ 609 #define VER_NEED_CURRENT 1 /* current version */ 610 #define VER_NEED_NUM 2 /* given version number */ 611 612 613 /* auxiliary needed version information */ 614 615 typedef struct { 616 Elf32_Word vna_hash; /* dependency name hash value */ 617 Elf32_Half vna_flags; /* dependency specific information flags */ 618 Elf32_Half vna_other; /* version index as specified in the symbol 619 version table */ 620 Elf32_Word vna_name; /* string table offset to dependency name */ 621 Elf32_Word vna_next; /* byte offset to next vernaux entry */ 622 } Elf32_Vernaux; 623 624 typedef struct { 625 Elf64_Word vna_hash; /* dependency name hash value */ 626 Elf64_Half vna_flags; /* dependency specific information flags */ 627 Elf64_Half vna_other; /* version index as specified in the symbol 628 version table */ 629 Elf64_Word vna_name; /* string table offset to dependency name */ 630 Elf64_Word vna_next; /* byte offset to next vernaux entry */ 631 } Elf64_Vernaux; 632 633 /* values for vna_flags */ 634 #define VER_FLG_WEAK 0x2 /* weak version identifier */ 635 636 637 /*** core files ***/ 638 639 /* note section header */ 640 641 typedef struct { 642 Elf32_Word n_namesz; /* length of the note's name */ 643 Elf32_Word n_descsz; /* length of the note's descriptor */ 644 Elf32_Word n_type; /* note type */ 645 } Elf32_Nhdr; 646 647 typedef struct { 648 Elf64_Word n_namesz; /* length of the note's name */ 649 Elf64_Word n_descsz; /* length of the note's descriptor */ 650 Elf64_Word n_type; /* note type */ 651 } Elf64_Nhdr; 652 653 /* values for note name */ 654 #define ELF_NOTE_CORE "CORE" 655 #define ELF_NOTE_HAIKU "Haiku" 656 657 /* values for note type (n_type) */ 658 /* ELF_NOTE_CORE/... */ 659 #define NT_FILE 0x46494c45 /* mapped files */ 660 661 /* ELF_NOTE_HAIKU/... */ 662 #define NT_TEAM 0x7465616d /* team */ 663 #define NT_AREAS 0x61726561 /* areas */ 664 #define NT_IMAGES 0x696d6167 /* images */ 665 #define NT_THREADS 0x74687264 /* threads */ 666 #define NT_SYMBOLS 0x73796d73 /* symbols */ 667 668 /* NT_TEAM: uint32 entrySize; Elf32_Note_Team; char[] args */ 669 typedef struct { 670 int32 nt_id; /* team ID */ 671 int32 nt_uid; /* team owner ID */ 672 int32 nt_gid; /* team group ID */ 673 } Elf32_Note_Team; 674 675 typedef Elf32_Note_Team Elf64_Note_Team; 676 677 /* NT_AREAS: 678 * uint32 count; 679 * uint32 entrySize; 680 * Elf32_Note_Area_Entry[count]; 681 * char[] names 682 */ 683 typedef struct { 684 int32 na_id; /* area ID */ 685 uint32 na_lock; /* lock type (B_NO_LOCK, ...) */ 686 uint32 na_protection; /* protection (B_READ_AREA | ...) */ 687 uint32 na_base; /* area base address */ 688 uint32 na_size; /* area size */ 689 uint32 na_ram_size; /* physical memory used */ 690 } Elf32_Note_Area_Entry; 691 692 /* NT_AREAS: 693 * uint32 count; 694 * uint32 entrySize; 695 * Elf64_Note_Area_Entry[count]; 696 * char[] names 697 */ 698 typedef struct { 699 int32 na_id; /* area ID */ 700 uint32 na_lock; /* lock type (B_NO_LOCK, ...) */ 701 uint32 na_protection; /* protection (B_READ_AREA | ...) */ 702 uint32 na_pad1; 703 uint64 na_base; /* area base address */ 704 uint64 na_size; /* area size */ 705 uint64 na_ram_size; /* physical memory used */ 706 } Elf64_Note_Area_Entry; 707 708 /* NT_IMAGES: 709 * uint32 count; 710 * uint32 entrySize; 711 * Elf32_Note_Image_Entry[count]; 712 * char[] names 713 */ 714 typedef struct { 715 int32 ni_id; /* image ID */ 716 int32 ni_type; /* image type (B_APP_IMAGE, ...) */ 717 uint32 ni_init_routine; /* address of init function */ 718 uint32 ni_term_routine; /* address of termination function */ 719 int32 ni_device; /* device ID of mapped file */ 720 int64 ni_node; /* node ID of mapped file */ 721 uint32 ni_text_base; /* base address of text segment */ 722 uint32 ni_text_size; /* size of text segment */ 723 int32 ni_text_delta; /* delta of the text segment relative to 724 load address specified in the ELF file */ 725 uint32 ni_data_base; /* base address of data segment */ 726 uint32 ni_data_size; /* size of data segment */ 727 uint32 ni_symbol_table; /* address of dynamic symbol table */ 728 uint32 ni_symbol_hash; /* address of dynamic symbol hash */ 729 uint32 ni_string_table; /* address of dynamic string table */ 730 } Elf32_Note_Image_Entry; 731 732 /* NT_IMAGES: 733 * uint32 count; 734 * uint32 entrySize; 735 * Elf64_Note_Image_Entry[count]; 736 * char[] names 737 */ 738 typedef struct { 739 int32 ni_id; /* image ID */ 740 int32 ni_type; /* image type (B_APP_IMAGE, ...) */ 741 uint64 ni_init_routine; /* address of init function */ 742 uint64 ni_term_routine; /* address of termination function */ 743 uint32 ni_pad1; 744 int32 ni_device; /* device ID of mapped file */ 745 int64 ni_node; /* node ID of mapped file */ 746 uint64 ni_text_base; /* base address of text segment */ 747 uint64 ni_text_size; /* size of text segment */ 748 int64 ni_text_delta; /* delta of the text segment relative to 749 load address specified in the ELF file */ 750 uint64 ni_data_base; /* base address of data segment */ 751 uint64 ni_data_size; /* size of data segment */ 752 uint64 ni_symbol_table; /* address of dynamic symbol table */ 753 uint64 ni_symbol_hash; /* address of dynamic symbol hash */ 754 uint64 ni_string_table; /* address of dynamic string table */ 755 } Elf64_Note_Image_Entry; 756 757 /* NT_THREADS: 758 * uint32 count; 759 * uint32 entrySize; 760 * uint32 cpuStateSize; 761 * {Elf32_Note_Thread_Entry, uint8[cpuStateSize] cpuState}[count]; 762 * char[] names 763 */ 764 typedef struct { 765 int32 nth_id; /* thread ID */ 766 int32 nth_state; /* thread state (B_THREAD_RUNNING, ...) */ 767 int32 nth_priority; /* thread priority */ 768 uint32 nth_stack_base; /* thread stack base address */ 769 uint32 nth_stack_end; /* thread stack end address */ 770 } Elf32_Note_Thread_Entry; 771 772 /* NT_THREADS: 773 * uint32 count; 774 * uint32 entrySize; 775 * uint32 cpuStateSize; 776 * {Elf64_Note_Thread_Entry, uint8[cpuStateSize] cpuState}[count]; 777 * char[] names 778 */ 779 typedef struct { 780 int32 nth_id; /* thread ID */ 781 int32 nth_state; /* thread state (B_THREAD_RUNNING, ...) */ 782 int32 nth_priority; /* thread priority */ 783 uint32 nth_pad1; 784 uint64 nth_stack_base; /* thread stack base address */ 785 uint64 nth_stack_end; /* thread stack end address */ 786 } Elf64_Note_Thread_Entry; 787 788 /* NT_SYMBOLS: 789 * int32 imageId; 790 * uint32 symbolCount; 791 * uint32 entrySize; 792 * Elf{32,64}_Sym[count]; 793 * char[] strings 794 */ 795 796 797 /*** inline functions ***/ 798 799 #ifdef __cplusplus 800 801 inline bool 802 Elf32_Ehdr::IsHostEndian() const 803 { 804 #if B_HOST_IS_LENDIAN 805 return e_ident[EI_DATA] == ELFDATA2LSB; 806 #elif B_HOST_IS_BENDIAN 807 return e_ident[EI_DATA] == ELFDATA2MSB; 808 #endif 809 } 810 811 812 inline bool 813 Elf64_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 Elf32_Phdr::IsReadWrite() const 825 { 826 return !(~p_flags & (PF_READ | PF_WRITE)); 827 } 828 829 830 inline bool 831 Elf32_Phdr::IsExecutable() const 832 { 833 return (p_flags & PF_EXECUTE) != 0; 834 } 835 836 837 inline bool 838 Elf64_Phdr::IsReadWrite() const 839 { 840 return !(~p_flags & (PF_READ | PF_WRITE)); 841 } 842 843 844 inline bool 845 Elf64_Phdr::IsExecutable() const 846 { 847 return (p_flags & PF_EXECUTE) != 0; 848 } 849 850 851 inline uint8 852 Elf32_Sym::Bind() const 853 { 854 return ELF32_ST_BIND(st_info); 855 } 856 857 858 inline uint8 859 Elf32_Sym::Type() const 860 { 861 return ELF32_ST_TYPE(st_info); 862 } 863 864 865 inline void 866 Elf32_Sym::SetInfo(uint8 bind, uint8 type) 867 { 868 st_info = ELF32_ST_INFO(bind, type); 869 } 870 871 872 inline uint8 873 Elf64_Sym::Bind() const 874 { 875 return ELF64_ST_BIND(st_info); 876 } 877 878 879 inline uint8 880 Elf64_Sym::Type() const 881 { 882 return ELF64_ST_TYPE(st_info); 883 } 884 885 886 inline void 887 Elf64_Sym::SetInfo(uint8 bind, uint8 type) 888 { 889 st_info = ELF64_ST_INFO(bind, type); 890 } 891 892 893 inline uint8 894 Elf32_Rel::SymbolIndex() const 895 { 896 return ELF32_R_SYM(r_info); 897 } 898 899 900 inline uint8 901 Elf32_Rel::Type() const 902 { 903 return ELF32_R_TYPE(r_info); 904 } 905 906 907 inline uint8 908 Elf64_Rel::SymbolIndex() const 909 { 910 return ELF64_R_SYM(r_info); 911 } 912 913 914 inline uint8 915 Elf64_Rel::Type() const 916 { 917 return ELF64_R_TYPE(r_info); 918 } 919 920 #endif /* __cplusplus */ 921 922 923 #endif /* _ELF_H */ 924