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_ARM64 183 /* ARM 64 bit */ 190 #define EM_AARCH64 EM_ARM64 191 #define EM_AVR32 185 /* AVR-32 */ 192 #define EM_STM8 186 /* ST STM8S */ 193 #define EM_CUDA 190 /* Nvidia CUDA */ 194 #define EM_VIDCORE5 198 /* Broadcom VideoCore V */ 195 #define EM_NORC 218 /* Nanoradio Optimized RISC */ 196 #define EM_AMDGPU 224 /* AMD GPU */ 197 #define EM_RISCV 243 /* RISC-V */ 198 #define EM_BPF 247 /* Linux kernel bpf virtual machine */ 199 200 /* architecture class (EI_CLASS) */ 201 #define ELFCLASSNONE 0 202 #define ELFCLASS32 1 203 #define ELFCLASS64 2 204 205 /* endian (EI_DATA) */ 206 #define ELFDATANONE 0 /* invalid */ 207 #define ELFDATA2LSB 1 /* little endian */ 208 #define ELFDATA2MSB 2 /* big endian */ 209 210 /* ELF version (EI_VERSION) */ 211 #define EV_NONE 0 /* invalid */ 212 #define EV_CURRENT 1 /* current version */ 213 214 /*** section header ***/ 215 216 typedef struct { 217 Elf32_Word sh_name; 218 Elf32_Word sh_type; 219 Elf32_Word sh_flags; 220 Elf32_Addr sh_addr; 221 Elf32_Off sh_offset; 222 Elf32_Word sh_size; 223 Elf32_Word sh_link; 224 Elf32_Word sh_info; 225 Elf32_Word sh_addralign; 226 Elf32_Word sh_entsize; 227 } Elf32_Shdr; 228 229 typedef struct { 230 Elf64_Word sh_name; 231 Elf64_Word sh_type; 232 Elf64_Xword sh_flags; 233 Elf64_Addr sh_addr; 234 Elf64_Off sh_offset; 235 Elf64_Xword sh_size; 236 Elf64_Word sh_link; 237 Elf64_Word sh_info; 238 Elf64_Xword sh_addralign; 239 Elf64_Xword sh_entsize; 240 } Elf64_Shdr; 241 242 /* special section indices */ 243 #define SHN_UNDEF 0 244 #define SHN_LORESERVE 0xff00 245 #define SHN_LOPROC 0xff00 246 #define SHN_HIPROC 0xff1f 247 #define SHN_ABS 0xfff1 248 #define SHN_COMMON 0xfff2 249 #define SHN_HIRESERVE 0xffff 250 251 /* section header type */ 252 #define SHT_NULL 0 253 #define SHT_PROGBITS 1 254 #define SHT_SYMTAB 2 255 #define SHT_STRTAB 3 256 #define SHT_RELA 4 257 #define SHT_HASH 5 258 #define SHT_DYNAMIC 6 259 #define SHT_NOTE 7 260 #define SHT_NOBITS 8 261 #define SHT_REL 9 262 #define SHT_SHLIB 10 263 #define SHT_DYNSYM 11 264 265 #define SHT_GNU_verdef 0x6ffffffd /* version definition section */ 266 #define SHT_GNU_verneed 0x6ffffffe /* version needs section */ 267 #define SHT_GNU_versym 0x6fffffff /* version symbol table */ 268 269 #define SHT_LOPROC 0x70000000 270 #define SHT_HIPROC 0x7fffffff 271 #define SHT_LOUSER 0x80000000 272 #define SHT_HIUSER 0xffffffff 273 274 /* section header flags */ 275 #define SHF_WRITE 1 276 #define SHF_ALLOC 2 277 #define SHF_EXECINSTR 4 278 279 #define SHF_MASKPROC 0xf0000000 280 281 282 /*** program header ***/ 283 284 typedef struct { 285 Elf32_Word p_type; 286 Elf32_Off p_offset; /* offset from the beginning of the file of the segment */ 287 Elf32_Addr p_vaddr; /* virtual address for the segment in memory */ 288 Elf32_Addr p_paddr; 289 Elf32_Word p_filesz; /* the size of the segment in the file */ 290 Elf32_Word p_memsz; /* the size of the segment in memory */ 291 Elf32_Word p_flags; 292 Elf32_Word p_align; 293 294 #ifdef __cplusplus 295 bool IsReadWrite() const; 296 bool IsExecutable() const; 297 #endif 298 } Elf32_Phdr; 299 300 typedef struct { 301 Elf64_Word p_type; 302 Elf64_Word p_flags; 303 Elf64_Off p_offset; /* offset from the beginning of the file of the segment */ 304 Elf64_Addr p_vaddr; /* virtual address for the segment in memory */ 305 Elf64_Addr p_paddr; 306 Elf64_Xword p_filesz; /* the size of the segment in the file */ 307 Elf64_Xword p_memsz; /* the size of the segment in memory */ 308 Elf64_Xword p_align; 309 310 #ifdef __cplusplus 311 bool IsReadWrite() const; 312 bool IsExecutable() const; 313 #endif 314 } Elf64_Phdr; 315 316 /* program header segment types */ 317 #define PT_NULL 0 318 #define PT_LOAD 1 319 #define PT_DYNAMIC 2 320 #define PT_INTERP 3 321 #define PT_NOTE 4 322 #define PT_SHLIB 5 323 #define PT_PHDR 6 324 #define PT_TLS 7 325 #define PT_STACK 0x6474e551 326 #define PT_RELRO 0x6474e552 327 328 #define PT_LOPROC 0x70000000 329 #define PT_ARM_UNWIND 0x70000001 330 #define PT_HIPROC 0x7fffffff 331 332 /* program header segment flags */ 333 #define PF_EXECUTE 0x1 334 #define PF_WRITE 0x2 335 #define PF_READ 0x4 336 #define PF_PROTECTION_MASK (PF_EXECUTE | PF_WRITE | PF_READ) 337 338 #define PF_MASKPROC 0xf0000000 339 340 341 /* symbol table entry */ 342 343 typedef struct { 344 Elf32_Word st_name; 345 Elf32_Addr st_value; 346 Elf32_Word st_size; 347 uint8 st_info; 348 uint8 st_other; 349 Elf32_Half st_shndx; 350 351 #ifdef __cplusplus 352 uint8 Bind() const; 353 uint8 Type() const; 354 void SetInfo(uint8 bind, uint8 type); 355 #endif 356 } Elf32_Sym; 357 358 typedef struct { 359 Elf64_Word st_name; 360 uint8 st_info; 361 uint8 st_other; 362 Elf64_Half st_shndx; 363 Elf64_Addr st_value; 364 Elf64_Xword st_size; 365 366 #ifdef __cplusplus 367 uint8 Bind() const; 368 uint8 Type() const; 369 void SetInfo(uint8 bind, uint8 type); 370 #endif 371 } Elf64_Sym; 372 373 #define ELF32_ST_BIND(i) ((i) >> 4) 374 #define ELF32_ST_TYPE(i) ((i) & 0xf) 375 #define ELF32_ST_INFO(b, t) (((b) << 4) + ((t) & 0xf)) 376 377 #define ELF64_ST_BIND(i) ((i) >> 4) 378 #define ELF64_ST_TYPE(i) ((i) & 0xf) 379 #define ELF64_ST_INFO(b, t) (((b) << 4) + ((t) & 0xf)) 380 381 /* symbol types */ 382 #define STT_NOTYPE 0 383 #define STT_OBJECT 1 384 #define STT_FUNC 2 385 #define STT_SECTION 3 386 #define STT_FILE 4 387 #define STT_TLS 6 388 #define STT_LOPROC 13 389 #define STT_HIPROC 15 390 391 /* symbol binding */ 392 #define STB_LOCAL 0 393 #define STB_GLOBAL 1 394 #define STB_WEAK 2 395 #define STB_LOPROC 13 396 #define STB_HIPROC 15 397 398 /* special symbol indices */ 399 #define STN_UNDEF 0 400 401 402 /* relocation table entry */ 403 404 typedef struct { 405 Elf32_Addr r_offset; 406 Elf32_Word r_info; 407 408 #ifdef __cplusplus 409 uint8 SymbolIndex() const; 410 uint8 Type() const; 411 #endif 412 } Elf32_Rel; 413 414 typedef struct { 415 Elf64_Addr r_offset; 416 Elf64_Xword r_info; 417 418 #ifdef __cplusplus 419 uint8 SymbolIndex() const; 420 uint8 Type() const; 421 #endif 422 } Elf64_Rel; 423 424 #ifdef __cplusplus 425 typedef struct Elf32_Rela : public Elf32_Rel { 426 #else 427 typedef struct { 428 Elf32_Addr r_offset; 429 Elf32_Word r_info; 430 #endif 431 Elf32_Sword r_addend; 432 } Elf32_Rela; 433 434 #ifdef __cplusplus 435 typedef struct Elf64_Rela : public Elf64_Rel { 436 #else 437 typedef struct { 438 Elf64_Addr r_offset; 439 Elf64_Xword r_info; 440 #endif 441 Elf64_Sxword r_addend; 442 } Elf64_Rela; 443 444 #define ELF32_R_SYM(i) ((i) >> 8) 445 #define ELF32_R_TYPE(i) ((unsigned char)(i)) 446 #define ELF32_R_INFO(s, t) (((s) << 8) + (unsigned char)(t)) 447 448 #define ELF64_R_SYM(i) ((i) >> 32) 449 #define ELF64_R_TYPE(i) ((i) & 0xffffffffL) 450 #define ELF64_R_INFO(s, t) ((((Elf64_Xword)(s)) << 32) + ((t) & 0xffffffffL)) 451 452 453 /* dynamic section entry */ 454 455 typedef struct { 456 Elf32_Sword d_tag; 457 union { 458 Elf32_Word d_val; 459 Elf32_Addr d_ptr; 460 } d_un; 461 } Elf32_Dyn; 462 463 typedef struct { 464 Elf64_Sxword d_tag; 465 union { 466 Elf64_Xword d_val; 467 Elf64_Addr d_ptr; 468 } d_un; 469 } Elf64_Dyn; 470 471 /* dynamic entry type */ 472 #define DT_NULL 0 473 #define DT_NEEDED 1 474 #define DT_PLTRELSZ 2 475 #define DT_PLTGOT 3 476 #define DT_HASH 4 477 #define DT_STRTAB 5 478 #define DT_SYMTAB 6 479 #define DT_RELA 7 480 #define DT_RELASZ 8 481 #define DT_RELAENT 9 482 #define DT_STRSZ 10 483 #define DT_SYMENT 11 484 #define DT_INIT 12 485 #define DT_FINI 13 486 #define DT_SONAME 14 487 #define DT_RPATH 15 488 #define DT_SYMBOLIC 16 489 #define DT_REL 17 490 #define DT_RELSZ 18 491 #define DT_RELENT 19 492 #define DT_PLTREL 20 493 #define DT_DEBUG 21 494 #define DT_TEXTREL 22 495 #define DT_JMPREL 23 496 #define DT_BIND_NOW 24 /* no lazy binding */ 497 #define DT_INIT_ARRAY 25 /* init function array */ 498 #define DT_FINI_ARRAY 26 /* termination function array */ 499 #define DT_INIT_ARRAYSZ 27 /* init function array size */ 500 #define DT_FINI_ARRAYSZ 28 /* termination function array size */ 501 #define DT_RUNPATH 29 /* library search path (supersedes DT_RPATH) */ 502 #define DT_FLAGS 30 /* flags (see below) */ 503 #define DT_ENCODING 32 504 #define DT_PREINIT_ARRAY 32 /* preinitialization array */ 505 #define DT_PREINIT_ARRAYSZ 33 /* preinitialization array size */ 506 507 #define DT_VERSYM 0x6ffffff0 /* symbol version table */ 508 #define DT_VERDEF 0x6ffffffc /* version definition table */ 509 #define DT_VERDEFNUM 0x6ffffffd /* number of version definitions */ 510 #define DT_VERNEED 0x6ffffffe /* table with needed versions */ 511 #define DT_VERNEEDNUM 0x6fffffff /* number of needed versions */ 512 513 #define DT_LOPROC 0x70000000 514 #define DT_HIPROC 0x7fffffff 515 516 /* DT_FLAGS values */ 517 #define DF_ORIGIN 0x01 518 #define DF_SYMBOLIC 0x02 519 #define DF_TEXTREL 0x04 520 #define DF_BIND_NOW 0x08 521 #define DF_STATIC_TLS 0x10 522 523 524 /* version definition section */ 525 526 typedef struct { 527 Elf32_Half vd_version; /* version revision */ 528 Elf32_Half vd_flags; /* version information flags */ 529 Elf32_Half vd_ndx; /* version index as specified in the 530 symbol version table */ 531 Elf32_Half vd_cnt; /* number of associated verdaux entries */ 532 Elf32_Word vd_hash; /* version name hash value */ 533 Elf32_Word vd_aux; /* byte offset to verdaux array */ 534 Elf32_Word vd_next; /* byte offset to next verdef entry */ 535 } Elf32_Verdef; 536 537 typedef struct { 538 Elf64_Half vd_version; /* version revision */ 539 Elf64_Half vd_flags; /* version information flags */ 540 Elf64_Half vd_ndx; /* version index as specified in the 541 symbol version table */ 542 Elf64_Half vd_cnt; /* number of associated verdaux entries */ 543 Elf64_Word vd_hash; /* version name hash value */ 544 Elf64_Word vd_aux; /* byte offset to verdaux array */ 545 Elf64_Word vd_next; /* byte offset to next verdef entry */ 546 } Elf64_Verdef; 547 548 /* values for vd_version (version revision) */ 549 #define VER_DEF_NONE 0 /* no version */ 550 #define VER_DEF_CURRENT 1 /* current version */ 551 #define VER_DEF_NUM 2 /* given version number */ 552 553 /* values for vd_flags (version information flags) */ 554 #define VER_FLG_BASE 0x1 /* version definition of file itself */ 555 #define VER_FLG_WEAK 0x2 /* weak version identifier */ 556 557 /* values for versym symbol index */ 558 #define VER_NDX_LOCAL 0 /* symbol is local */ 559 #define VER_NDX_GLOBAL 1 /* symbol is global/unversioned */ 560 #define VER_NDX_INITIAL 2 /* initial version -- that's the one given 561 to symbols when a library becomes 562 versioned; handled by the linker (and 563 runtime loader) similar to 564 VER_NDX_GLOBAL */ 565 #define VER_NDX_LORESERVE 0xff00 /* beginning of reserved entries */ 566 #define VER_NDX_ELIMINATE 0xff01 /* symbol is to be eliminated */ 567 568 #define VER_NDX_FLAG_HIDDEN 0x8000 /* flag: version is hidden */ 569 #define VER_NDX_MASK 0x7fff /* mask to get the actual version index */ 570 #define VER_NDX(x) ((x) & VER_NDX_MASK) 571 572 573 /* auxiliary version information */ 574 575 typedef struct { 576 Elf32_Word vda_name; /* string table offset to version or dependency 577 name */ 578 Elf32_Word vda_next; /* byte offset to next verdaux entry */ 579 } Elf32_Verdaux; 580 581 typedef struct { 582 Elf64_Word vda_name; /* string table offset to version or dependency 583 name */ 584 Elf64_Word vda_next; /* byte offset to next verdaux entry */ 585 } Elf64_Verdaux; 586 587 588 /* version dependency section */ 589 590 typedef struct { 591 Elf32_Half vn_version; /* version of structure */ 592 Elf32_Half vn_cnt; /* number of associated vernaux entries */ 593 Elf32_Word vn_file; /* byte offset to file name for this 594 dependency */ 595 Elf32_Word vn_aux; /* byte offset to vernaux array */ 596 Elf32_Word vn_next; /* byte offset to next verneed entry */ 597 } Elf32_Verneed; 598 599 typedef struct { 600 Elf64_Half vn_version; /* version of structure */ 601 Elf64_Half vn_cnt; /* number of associated vernaux entries */ 602 Elf64_Word vn_file; /* byte offset to file name for this 603 dependency */ 604 Elf64_Word vn_aux; /* byte offset to vernaux array */ 605 Elf64_Word vn_next; /* byte offset to next verneed entry */ 606 } Elf64_Verneed; 607 608 /* values for vn_version (version revision) */ 609 #define VER_NEED_NONE 0 /* no version */ 610 #define VER_NEED_CURRENT 1 /* current version */ 611 #define VER_NEED_NUM 2 /* given version number */ 612 613 614 /* auxiliary needed version information */ 615 616 typedef struct { 617 Elf32_Word vna_hash; /* dependency name hash value */ 618 Elf32_Half vna_flags; /* dependency specific information flags */ 619 Elf32_Half vna_other; /* version index as specified in the symbol 620 version table */ 621 Elf32_Word vna_name; /* string table offset to dependency name */ 622 Elf32_Word vna_next; /* byte offset to next vernaux entry */ 623 } Elf32_Vernaux; 624 625 typedef struct { 626 Elf64_Word vna_hash; /* dependency name hash value */ 627 Elf64_Half vna_flags; /* dependency specific information flags */ 628 Elf64_Half vna_other; /* version index as specified in the symbol 629 version table */ 630 Elf64_Word vna_name; /* string table offset to dependency name */ 631 Elf64_Word vna_next; /* byte offset to next vernaux entry */ 632 } Elf64_Vernaux; 633 634 /* values for vna_flags */ 635 #define VER_FLG_WEAK 0x2 /* weak version identifier */ 636 637 638 /*** core files ***/ 639 640 /* note section header */ 641 642 typedef struct { 643 Elf32_Word n_namesz; /* length of the note's name */ 644 Elf32_Word n_descsz; /* length of the note's descriptor */ 645 Elf32_Word n_type; /* note type */ 646 } Elf32_Nhdr; 647 648 typedef struct { 649 Elf64_Word n_namesz; /* length of the note's name */ 650 Elf64_Word n_descsz; /* length of the note's descriptor */ 651 Elf64_Word n_type; /* note type */ 652 } Elf64_Nhdr; 653 654 /* values for note name */ 655 #define ELF_NOTE_CORE "CORE" 656 #define ELF_NOTE_HAIKU "Haiku" 657 658 /* values for note type (n_type) */ 659 /* ELF_NOTE_CORE/... */ 660 #define NT_FILE 0x46494c45 /* mapped files */ 661 662 /* ELF_NOTE_HAIKU/... */ 663 #define NT_TEAM 0x7465616d /* team */ 664 #define NT_AREAS 0x61726561 /* areas */ 665 #define NT_IMAGES 0x696d6167 /* images */ 666 #define NT_THREADS 0x74687264 /* threads */ 667 #define NT_SYMBOLS 0x73796d73 /* symbols */ 668 669 /* NT_TEAM: uint32 entrySize; Elf32_Note_Team; char[] args */ 670 typedef struct { 671 int32 nt_id; /* team ID */ 672 int32 nt_uid; /* team owner ID */ 673 int32 nt_gid; /* team group ID */ 674 } Elf32_Note_Team; 675 676 typedef Elf32_Note_Team Elf64_Note_Team; 677 678 /* NT_AREAS: 679 * uint32 count; 680 * uint32 entrySize; 681 * Elf32_Note_Area_Entry[count]; 682 * char[] names 683 */ 684 typedef struct { 685 int32 na_id; /* area ID */ 686 uint32 na_lock; /* lock type (B_NO_LOCK, ...) */ 687 uint32 na_protection; /* protection (B_READ_AREA | ...) */ 688 uint32 na_base; /* area base address */ 689 uint32 na_size; /* area size */ 690 uint32 na_ram_size; /* physical memory used */ 691 } Elf32_Note_Area_Entry; 692 693 /* NT_AREAS: 694 * uint32 count; 695 * uint32 entrySize; 696 * Elf64_Note_Area_Entry[count]; 697 * char[] names 698 */ 699 typedef struct { 700 int32 na_id; /* area ID */ 701 uint32 na_lock; /* lock type (B_NO_LOCK, ...) */ 702 uint32 na_protection; /* protection (B_READ_AREA | ...) */ 703 uint32 na_pad1; 704 uint64 na_base; /* area base address */ 705 uint64 na_size; /* area size */ 706 uint64 na_ram_size; /* physical memory used */ 707 } Elf64_Note_Area_Entry; 708 709 /* NT_IMAGES: 710 * uint32 count; 711 * uint32 entrySize; 712 * Elf32_Note_Image_Entry[count]; 713 * char[] names 714 */ 715 typedef struct { 716 int32 ni_id; /* image ID */ 717 int32 ni_type; /* image type (B_APP_IMAGE, ...) */ 718 uint32 ni_init_routine; /* address of init function */ 719 uint32 ni_term_routine; /* address of termination function */ 720 int32 ni_device; /* device ID of mapped file */ 721 int64 ni_node; /* node ID of mapped file */ 722 uint32 ni_text_base; /* base address of text segment */ 723 uint32 ni_text_size; /* size of text segment */ 724 int32 ni_text_delta; /* delta of the text segment relative to 725 load address specified in the ELF file */ 726 uint32 ni_data_base; /* base address of data segment */ 727 uint32 ni_data_size; /* size of data segment */ 728 uint32 ni_symbol_table; /* address of dynamic symbol table */ 729 uint32 ni_symbol_hash; /* address of dynamic symbol hash */ 730 uint32 ni_string_table; /* address of dynamic string table */ 731 } Elf32_Note_Image_Entry; 732 733 /* NT_IMAGES: 734 * uint32 count; 735 * uint32 entrySize; 736 * Elf64_Note_Image_Entry[count]; 737 * char[] names 738 */ 739 typedef struct { 740 int32 ni_id; /* image ID */ 741 int32 ni_type; /* image type (B_APP_IMAGE, ...) */ 742 uint64 ni_init_routine; /* address of init function */ 743 uint64 ni_term_routine; /* address of termination function */ 744 uint32 ni_pad1; 745 int32 ni_device; /* device ID of mapped file */ 746 int64 ni_node; /* node ID of mapped file */ 747 uint64 ni_text_base; /* base address of text segment */ 748 uint64 ni_text_size; /* size of text segment */ 749 int64 ni_text_delta; /* delta of the text segment relative to 750 load address specified in the ELF file */ 751 uint64 ni_data_base; /* base address of data segment */ 752 uint64 ni_data_size; /* size of data segment */ 753 uint64 ni_symbol_table; /* address of dynamic symbol table */ 754 uint64 ni_symbol_hash; /* address of dynamic symbol hash */ 755 uint64 ni_string_table; /* address of dynamic string table */ 756 } Elf64_Note_Image_Entry; 757 758 /* NT_THREADS: 759 * uint32 count; 760 * uint32 entrySize; 761 * uint32 cpuStateSize; 762 * {Elf32_Note_Thread_Entry, uint8[cpuStateSize] cpuState}[count]; 763 * char[] names 764 */ 765 typedef struct { 766 int32 nth_id; /* thread ID */ 767 int32 nth_state; /* thread state (B_THREAD_RUNNING, ...) */ 768 int32 nth_priority; /* thread priority */ 769 uint32 nth_stack_base; /* thread stack base address */ 770 uint32 nth_stack_end; /* thread stack end address */ 771 } Elf32_Note_Thread_Entry; 772 773 /* NT_THREADS: 774 * uint32 count; 775 * uint32 entrySize; 776 * uint32 cpuStateSize; 777 * {Elf64_Note_Thread_Entry, uint8[cpuStateSize] cpuState}[count]; 778 * char[] names 779 */ 780 typedef struct { 781 int32 nth_id; /* thread ID */ 782 int32 nth_state; /* thread state (B_THREAD_RUNNING, ...) */ 783 int32 nth_priority; /* thread priority */ 784 uint32 nth_pad1; 785 uint64 nth_stack_base; /* thread stack base address */ 786 uint64 nth_stack_end; /* thread stack end address */ 787 } Elf64_Note_Thread_Entry; 788 789 /* NT_SYMBOLS: 790 * int32 imageId; 791 * uint32 symbolCount; 792 * uint32 entrySize; 793 * Elf{32,64}_Sym[count]; 794 * char[] strings 795 */ 796 797 798 /*** inline functions ***/ 799 800 #ifdef __cplusplus 801 802 inline bool 803 Elf32_Ehdr::IsHostEndian() const 804 { 805 #if B_HOST_IS_LENDIAN 806 return e_ident[EI_DATA] == ELFDATA2LSB; 807 #elif B_HOST_IS_BENDIAN 808 return e_ident[EI_DATA] == ELFDATA2MSB; 809 #endif 810 } 811 812 813 inline bool 814 Elf64_Ehdr::IsHostEndian() const 815 { 816 #if B_HOST_IS_LENDIAN 817 return e_ident[EI_DATA] == ELFDATA2LSB; 818 #elif B_HOST_IS_BENDIAN 819 return e_ident[EI_DATA] == ELFDATA2MSB; 820 #endif 821 } 822 823 824 inline bool 825 Elf32_Phdr::IsReadWrite() const 826 { 827 return !(~p_flags & (PF_READ | PF_WRITE)); 828 } 829 830 831 inline bool 832 Elf32_Phdr::IsExecutable() const 833 { 834 return (p_flags & PF_EXECUTE) != 0; 835 } 836 837 838 inline bool 839 Elf64_Phdr::IsReadWrite() const 840 { 841 return !(~p_flags & (PF_READ | PF_WRITE)); 842 } 843 844 845 inline bool 846 Elf64_Phdr::IsExecutable() const 847 { 848 return (p_flags & PF_EXECUTE) != 0; 849 } 850 851 852 inline uint8 853 Elf32_Sym::Bind() const 854 { 855 return ELF32_ST_BIND(st_info); 856 } 857 858 859 inline uint8 860 Elf32_Sym::Type() const 861 { 862 return ELF32_ST_TYPE(st_info); 863 } 864 865 866 inline void 867 Elf32_Sym::SetInfo(uint8 bind, uint8 type) 868 { 869 st_info = ELF32_ST_INFO(bind, type); 870 } 871 872 873 inline uint8 874 Elf64_Sym::Bind() const 875 { 876 return ELF64_ST_BIND(st_info); 877 } 878 879 880 inline uint8 881 Elf64_Sym::Type() const 882 { 883 return ELF64_ST_TYPE(st_info); 884 } 885 886 887 inline void 888 Elf64_Sym::SetInfo(uint8 bind, uint8 type) 889 { 890 st_info = ELF64_ST_INFO(bind, type); 891 } 892 893 894 inline uint8 895 Elf32_Rel::SymbolIndex() const 896 { 897 return ELF32_R_SYM(r_info); 898 } 899 900 901 inline uint8 902 Elf32_Rel::Type() const 903 { 904 return ELF32_R_TYPE(r_info); 905 } 906 907 908 inline uint8 909 Elf64_Rel::SymbolIndex() const 910 { 911 return ELF64_R_SYM(r_info); 912 } 913 914 915 inline uint8 916 Elf64_Rel::Type() const 917 { 918 return ELF64_R_TYPE(r_info); 919 } 920 921 #endif /* __cplusplus */ 922 923 924 #endif /* _ELF_H */ 925