1 /* 2 * Copyright 2002-2019 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 <BeBuild.h> 10 #include <ByteOrder.h> 11 #include <SupportDefs.h> 12 13 14 typedef uint32 Elf32_Addr; 15 typedef uint16 Elf32_Half; 16 typedef uint32 Elf32_Off; 17 typedef int32 Elf32_Sword; 18 typedef uint32 Elf32_Word; 19 20 typedef Elf32_Half Elf32_Versym; 21 22 typedef uint64 Elf64_Addr; 23 typedef uint64 Elf64_Off; 24 typedef uint16 Elf64_Half; 25 typedef uint32 Elf64_Word; 26 typedef int32 Elf64_Sword; 27 typedef uint64 Elf64_Xword; 28 typedef int64 Elf64_Sxword; 29 30 typedef Elf64_Half Elf64_Versym; 31 32 #if B_HAIKU_32_BIT 33 #define Elf_Addr Elf32_Addr 34 #define Elf_Phdr Elf32_Phdr 35 #define Elf_Half Elf32_Half 36 #elif B_HAIKU_64_BIT 37 #define Elf_Addr Elf64_Addr 38 #define Elf_Phdr Elf64_Phdr 39 #define Elf_Half Elf64_Half 40 #endif 41 42 43 /*** ELF header ***/ 44 45 #define EI_NIDENT 16 46 47 typedef struct { 48 uint8 e_ident[EI_NIDENT]; 49 Elf32_Half e_type; 50 Elf32_Half e_machine; 51 Elf32_Word e_version; 52 Elf32_Addr e_entry; 53 Elf32_Off e_phoff; 54 Elf32_Off e_shoff; 55 Elf32_Word e_flags; 56 Elf32_Half e_ehsize; 57 Elf32_Half e_phentsize; 58 Elf32_Half e_phnum; 59 Elf32_Half e_shentsize; 60 Elf32_Half e_shnum; 61 Elf32_Half e_shstrndx; 62 63 #ifdef __cplusplus 64 bool IsHostEndian() const; 65 #endif 66 } Elf32_Ehdr; 67 68 typedef struct { 69 uint8 e_ident[EI_NIDENT]; 70 Elf64_Half e_type; 71 Elf64_Half e_machine; 72 Elf64_Word e_version; 73 Elf64_Addr e_entry; 74 Elf64_Off e_phoff; 75 Elf64_Off e_shoff; 76 Elf64_Word e_flags; 77 Elf64_Half e_ehsize; 78 Elf64_Half e_phentsize; 79 Elf64_Half e_phnum; 80 Elf64_Half e_shentsize; 81 Elf64_Half e_shnum; 82 Elf64_Half e_shstrndx; 83 84 #ifdef __cplusplus 85 bool IsHostEndian() const; 86 #endif 87 } Elf64_Ehdr; 88 89 /* e_ident[] indices */ 90 #define EI_MAG0 0 91 #define EI_MAG1 1 92 #define EI_MAG2 2 93 #define EI_MAG3 3 94 #define EI_CLASS 4 95 #define EI_DATA 5 96 #define EI_VERSION 6 97 #define EI_PAD 7 98 99 /* Values for the magic number bytes. */ 100 #define ELFMAG0 0x7f 101 #define ELFMAG1 'E' 102 #define ELFMAG2 'L' 103 #define ELFMAG3 'F' 104 #define ELFMAG "\x7f""ELF" 105 #define SELFMAG 4 106 107 /* e_ident */ 108 #define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \ 109 (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \ 110 (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \ 111 (ehdr).e_ident[EI_MAG3] == ELFMAG3) 112 113 /* e_type (Object file type) */ 114 #define ET_NONE 0 /* No file type */ 115 #define ET_REL 1 /* Relocatable file */ 116 #define ET_EXEC 2 /* Executable file */ 117 #define ET_DYN 3 /* Shared-object file */ 118 #define ET_CORE 4 /* Core file */ 119 #define ET_LOOS 0xfe00 /* OS-specific range start */ 120 #define ET_HIOS 0xfeff /* OS-specific range end */ 121 #define ET_LOPROC 0xff00 /* Processor-specific range start */ 122 #define ET_HIPROC 0xffff /* Processor-specific range end */ 123 124 /* e_machine (Architecture) */ 125 #define EM_NONE 0 /* No machine */ 126 #define EM_M32 1 /* AT&T WE 32100 */ 127 #define EM_SPARC 2 /* Sparc */ 128 #define EM_386 3 /* Intel 80386 */ 129 #define EM_68K 4 /* Motorola m68k family */ 130 #define EM_88K 5 /* Motorola m88k family */ 131 #define EM_486 6 /* Intel 80486, Reserved for future use */ 132 #define EM_860 7 /* Intel 80860 */ 133 #define EM_MIPS 8 /* MIPS R3000 (officially, big-endian only) */ 134 #define EM_S370 9 /* IBM System/370 */ 135 #define EM_MIPS_RS3_LE 10 /* MIPS R3000 little-endian, Deprecated */ 136 #define EM_PARISC 15 /* HPPA */ 137 #define EM_VPP550 17 /* Fujitsu VPP500 */ 138 #define EM_SPARC32PLUS 18 /* Sun "v8plus" */ 139 #define EM_960 19 /* Intel 80960 */ 140 #define EM_PPC 20 /* PowerPC */ 141 #define EM_PPC64 21 /* 64-bit PowerPC */ 142 #define EM_S390 22 /* IBM S/390 */ 143 #define EM_V800 36 /* NEC V800 series */ 144 #define EM_FR20 37 /* Fujitsu FR20 */ 145 #define EM_RH32 38 /* TRW RH32 */ 146 #define EM_MCORE 39 /* Motorola M*Core */ 147 #define EM_RCE 39 /* Old name for MCore */ 148 #define EM_ARM 40 /* ARM */ 149 #define EM_OLD_ALPHA 41 /* Digital Alpha */ 150 #define EM_SH 42 /* Renesas / SuperH SH */ 151 #define EM_SPARCV9 43 /* SPARC v9 64-bit */ 152 #define EM_TRICORE 44 /* Siemens Tricore embedded processor */ 153 #define EM_ARC 45 /* ARC Cores */ 154 #define EM_H8_300 46 /* Renesas H8/300 */ 155 #define EM_H8_300H 47 /* Renesas H8/300H */ 156 #define EM_H8S 48 /* Renesas H8S */ 157 #define EM_H8_500 49 /* Renesas H8/500 */ 158 #define EM_IA_64 50 /* Intel IA-64 Processor */ 159 #define EM_MIPS_X 51 /* Stanford MIPS-X */ 160 #define EM_COLDFIRE 52 /* Motorola Coldfire */ 161 #define EM_68HC12 53 /* Motorola M68HC12 */ 162 #define EM_MMA 54 /* Fujitsu Multimedia Accelerator */ 163 #define EM_PCP 55 /* Siemens PCP */ 164 #define EM_NCPU 56 /* Sony nCPU embedded RISC processor */ 165 #define EM_NDR1 57 /* Denso NDR1 microprocesspr */ 166 #define EM_STARCORE 58 /* Motorola Star*Core processor */ 167 #define EM_ME16 59 /* Toyota ME16 processor */ 168 #define EM_ST100 60 /* STMicroelectronics ST100 processor */ 169 #define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ embedded processor */ 170 #define EM_X86_64 62 /* Advanced Micro Devices X86-64 processor */ 171 #define EM_PDSP 63 /* Sony DSP Processor */ 172 #define EM_FX66 66 /* Siemens FX66 microcontroller */ 173 #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */ 174 #define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */ 175 #define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */ 176 #define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */ 177 #define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */ 178 #define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */ 179 #define EM_SVX 73 /* Silicon Graphics SVx */ 180 #define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */ 181 #define EM_VAX 75 /* Digital VAX */ 182 #define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ 183 #define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded processor */ 184 #define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */ 185 #define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */ 186 #define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */ 187 #define EM_HUANY 81 /* Harvard University machine-independent object files */ 188 #define EM_PRISM 82 /* SiTera Prism */ 189 #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ 190 #define EM_FR30 84 /* Fujitsu FR30 */ 191 #define EM_D10V 85 /* Mitsubishi D10V */ 192 #define EM_D30V 86 /* Mitsubishi D30V */ 193 #define EM_V850 87 /* NEC v850 */ 194 #define EM_M32R 88 /* Mitsubishi M32R */ 195 #define EM_MN10300 89 /* Matsushita MN10300 */ 196 #define EM_MN10200 90 /* Matsushita MN10200 */ 197 #define EM_PJ 91 /* picoJava */ 198 #define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ 199 #define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ 200 #define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ 201 #define EM_VIDCORE 95 /* Alphamosaic VideoCore */ 202 #define EM_CR 103 /* Nat. Semi. CompactRISC microprocessor */ 203 #define EM_BLACKFIN 106 /* Analog Devices Blackfin (DSP) processor */ 204 #define EM_ARCA 109 /* Arca RISC Microprocessor */ 205 #define EM_VIDCORE3 137 /* Broadcom VideoCore III */ 206 #define EM_ARM64 183 /* ARM 64 bit */ 207 #define EM_AARCH64 EM_ARM64 208 #define EM_AVR32 185 /* AVR-32 */ 209 #define EM_STM8 186 /* ST STM8S */ 210 #define EM_CUDA 190 /* Nvidia CUDA */ 211 #define EM_VIDCORE5 198 /* Broadcom VideoCore V */ 212 #define EM_NORC 218 /* Nanoradio Optimized RISC */ 213 #define EM_AMDGPU 224 /* AMD GPU */ 214 #define EM_RISCV 243 /* RISC-V */ 215 #define EM_BPF 247 /* Linux kernel bpf virtual machine */ 216 217 #define EM_ALPHA 0x9026 /* Digital Alpha (nonstandard, but the value 218 everyone uses) */ 219 220 /* architecture class (EI_CLASS) */ 221 #define ELFCLASSNONE 0 222 #define ELFCLASS32 1 223 #define ELFCLASS64 2 224 225 /* endian (EI_DATA) */ 226 #define ELFDATANONE 0 /* invalid */ 227 #define ELFDATA2LSB 1 /* little endian */ 228 #define ELFDATA2MSB 2 /* big endian */ 229 230 /* ELF version (EI_VERSION) */ 231 #define EV_NONE 0 /* invalid */ 232 #define EV_CURRENT 1 /* current version */ 233 234 /*** section header ***/ 235 236 typedef struct { 237 Elf32_Word sh_name; 238 Elf32_Word sh_type; 239 Elf32_Word sh_flags; 240 Elf32_Addr sh_addr; 241 Elf32_Off sh_offset; 242 Elf32_Word sh_size; 243 Elf32_Word sh_link; 244 Elf32_Word sh_info; 245 Elf32_Word sh_addralign; 246 Elf32_Word sh_entsize; 247 } Elf32_Shdr; 248 249 typedef struct { 250 Elf64_Word sh_name; 251 Elf64_Word sh_type; 252 Elf64_Xword sh_flags; 253 Elf64_Addr sh_addr; 254 Elf64_Off sh_offset; 255 Elf64_Xword sh_size; 256 Elf64_Word sh_link; 257 Elf64_Word sh_info; 258 Elf64_Xword sh_addralign; 259 Elf64_Xword sh_entsize; 260 } Elf64_Shdr; 261 262 /* special section indices */ 263 #define SHN_UNDEF 0 264 #define SHN_LORESERVE 0xff00 265 #define SHN_LOPROC 0xff00 266 #define SHN_HIPROC 0xff1f 267 #define SHN_ABS 0xfff1 268 #define SHN_COMMON 0xfff2 269 #define SHN_HIRESERVE 0xffff 270 271 /* section header type */ 272 #define SHT_NULL 0 273 #define SHT_PROGBITS 1 274 #define SHT_SYMTAB 2 275 #define SHT_STRTAB 3 276 #define SHT_RELA 4 277 #define SHT_HASH 5 278 #define SHT_DYNAMIC 6 279 #define SHT_NOTE 7 280 #define SHT_NOBITS 8 281 #define SHT_REL 9 282 #define SHT_SHLIB 10 283 #define SHT_DYNSYM 11 284 #define SHT_INIT_ARRAY 14 285 #define SHT_FINI_ARRAY 15 286 287 #define SHT_GNU_verdef 0x6ffffffd /* version definition section */ 288 #define SHT_GNU_verneed 0x6ffffffe /* version needs section */ 289 #define SHT_GNU_versym 0x6fffffff /* version symbol table */ 290 291 #define SHT_LOPROC 0x70000000 292 #define SHT_HIPROC 0x7fffffff 293 #define SHT_LOUSER 0x80000000 294 #define SHT_HIUSER 0xffffffff 295 296 /* section header flags */ 297 #define SHF_WRITE 1 298 #define SHF_ALLOC 2 299 #define SHF_EXECINSTR 4 300 301 #define SHF_MASKPROC 0xf0000000 302 303 304 /*** program header ***/ 305 306 typedef struct { 307 Elf32_Word p_type; 308 Elf32_Off p_offset; /* offset from the beginning of the file of the segment */ 309 Elf32_Addr p_vaddr; /* virtual address for the segment in memory */ 310 Elf32_Addr p_paddr; 311 Elf32_Word p_filesz; /* the size of the segment in the file */ 312 Elf32_Word p_memsz; /* the size of the segment in memory */ 313 Elf32_Word p_flags; 314 Elf32_Word p_align; 315 316 #ifdef __cplusplus 317 bool IsReadWrite() const; 318 bool IsExecutable() const; 319 #endif 320 } Elf32_Phdr; 321 322 typedef struct { 323 Elf64_Word p_type; 324 Elf64_Word p_flags; 325 Elf64_Off p_offset; /* offset from the beginning of the file of the segment */ 326 Elf64_Addr p_vaddr; /* virtual address for the segment in memory */ 327 Elf64_Addr p_paddr; 328 Elf64_Xword p_filesz; /* the size of the segment in the file */ 329 Elf64_Xword p_memsz; /* the size of the segment in memory */ 330 Elf64_Xword p_align; 331 332 #ifdef __cplusplus 333 bool IsReadWrite() const; 334 bool IsExecutable() const; 335 #endif 336 } Elf64_Phdr; 337 338 /* program header segment types */ 339 #define PT_NULL 0 340 #define PT_LOAD 1 341 #define PT_DYNAMIC 2 342 #define PT_INTERP 3 343 #define PT_NOTE 4 344 #define PT_SHLIB 5 345 #define PT_PHDR 6 346 #define PT_TLS 7 347 #define PT_EH_FRAME 0x6474e550 348 #define PT_STACK 0x6474e551 349 #define PT_RELRO 0x6474e552 350 351 #define PT_LOPROC 0x70000000 352 #define PT_ARM_UNWIND 0x70000001 353 #define PT_HIPROC 0x7fffffff 354 355 /* program header segment flags */ 356 #define PF_EXECUTE 0x1 357 #define PF_WRITE 0x2 358 #define PF_READ 0x4 359 #define PF_PROTECTION_MASK (PF_EXECUTE | PF_WRITE | PF_READ) 360 361 #define PF_MASKPROC 0xf0000000 362 363 364 /* symbol table entry */ 365 366 typedef struct { 367 Elf32_Word st_name; 368 Elf32_Addr st_value; 369 Elf32_Word st_size; 370 uint8 st_info; 371 uint8 st_other; 372 Elf32_Half st_shndx; 373 374 #ifdef __cplusplus 375 uint8 Bind() const; 376 uint8 Type() const; 377 void SetInfo(uint8 bind, uint8 type); 378 #endif 379 } Elf32_Sym; 380 381 typedef struct { 382 Elf64_Word st_name; 383 uint8 st_info; 384 uint8 st_other; 385 Elf64_Half st_shndx; 386 Elf64_Addr st_value; 387 Elf64_Xword st_size; 388 389 #ifdef __cplusplus 390 uint8 Bind() const; 391 uint8 Type() const; 392 void SetInfo(uint8 bind, uint8 type); 393 #endif 394 } Elf64_Sym; 395 396 #define ELF32_ST_BIND(i) ((i) >> 4) 397 #define ELF32_ST_TYPE(i) ((i) & 0xf) 398 #define ELF32_ST_INFO(b, t) (((b) << 4) + ((t) & 0xf)) 399 400 #define ELF64_ST_BIND(i) ((i) >> 4) 401 #define ELF64_ST_TYPE(i) ((i) & 0xf) 402 #define ELF64_ST_INFO(b, t) (((b) << 4) + ((t) & 0xf)) 403 404 /* symbol types */ 405 #define STT_NOTYPE 0 406 #define STT_OBJECT 1 407 #define STT_FUNC 2 408 #define STT_SECTION 3 409 #define STT_FILE 4 410 #define STT_TLS 6 411 #define STT_LOPROC 13 412 #define STT_HIPROC 15 413 414 /* symbol binding */ 415 #define STB_LOCAL 0 416 #define STB_GLOBAL 1 417 #define STB_WEAK 2 418 #define STB_LOPROC 13 419 #define STB_HIPROC 15 420 421 /* special symbol indices */ 422 #define STN_UNDEF 0 423 424 /* relocation types */ 425 426 #define R_386_NONE 0 427 #define R_386_32 1 /* add symbol value */ 428 #define R_386_PC32 2 /* add PC relative symbol value */ 429 #define R_386_GOT32 3 /* add PC relative GOT offset */ 430 #define R_386_PLT32 4 /* add PC relative PLT offset */ 431 #define R_386_COPY 5 /* copy data from shared object */ 432 #define R_386_GLOB_DAT 6 /* set GOT entry to data address */ 433 #define R_386_JMP_SLOT 7 /* set GOT entry to code address */ 434 #define R_386_RELATIVE 8 /* add load address of shared object */ 435 #define R_386_GOTOFF 9 /* add GOT relative symbol address */ 436 #define R_386_GOTPC 10 /* add PC relative GOT table address */ 437 #define R_386_TLS_DTPMOD32 35 438 #define R_386_TLS_DTPOFF32 36 439 440 441 /* relocation table entry */ 442 443 typedef struct { 444 Elf32_Addr r_offset; 445 Elf32_Word r_info; 446 447 #ifdef __cplusplus 448 uint8 SymbolIndex() const; 449 uint8 Type() const; 450 #endif 451 } Elf32_Rel; 452 453 typedef struct { 454 Elf64_Addr r_offset; 455 Elf64_Xword r_info; 456 457 #ifdef __cplusplus 458 uint8 SymbolIndex() const; 459 uint8 Type() const; 460 #endif 461 } Elf64_Rel; 462 463 #ifdef __cplusplus 464 typedef struct Elf32_Rela : public Elf32_Rel { 465 #else 466 typedef struct { 467 Elf32_Addr r_offset; 468 Elf32_Word r_info; 469 #endif 470 Elf32_Sword r_addend; 471 } Elf32_Rela; 472 473 #ifdef __cplusplus 474 typedef struct Elf64_Rela : public Elf64_Rel { 475 #else 476 typedef struct { 477 Elf64_Addr r_offset; 478 Elf64_Xword r_info; 479 #endif 480 Elf64_Sxword r_addend; 481 } Elf64_Rela; 482 483 #define ELF32_R_SYM(i) ((i) >> 8) 484 #define ELF32_R_TYPE(i) ((unsigned char)(i)) 485 #define ELF32_R_INFO(s, t) (((s) << 8) + (unsigned char)(t)) 486 487 #define ELF64_R_SYM(i) ((i) >> 32) 488 #define ELF64_R_TYPE(i) ((i) & 0xffffffffL) 489 #define ELF64_R_INFO(s, t) ((((Elf64_Xword)(s)) << 32) + ((t) & 0xffffffffL)) 490 491 492 /* dynamic section entry */ 493 494 typedef struct { 495 Elf32_Sword d_tag; 496 union { 497 Elf32_Word d_val; 498 Elf32_Addr d_ptr; 499 } d_un; 500 } Elf32_Dyn; 501 502 typedef struct { 503 Elf64_Sxword d_tag; 504 union { 505 Elf64_Xword d_val; 506 Elf64_Addr d_ptr; 507 } d_un; 508 } Elf64_Dyn; 509 510 /* dynamic entry type */ 511 #define DT_NULL 0 512 #define DT_NEEDED 1 513 #define DT_PLTRELSZ 2 514 #define DT_PLTGOT 3 515 #define DT_HASH 4 516 #define DT_STRTAB 5 517 #define DT_SYMTAB 6 518 #define DT_RELA 7 519 #define DT_RELASZ 8 520 #define DT_RELAENT 9 521 #define DT_STRSZ 10 522 #define DT_SYMENT 11 523 #define DT_INIT 12 524 #define DT_FINI 13 525 #define DT_SONAME 14 526 #define DT_RPATH 15 527 #define DT_SYMBOLIC 16 528 #define DT_REL 17 529 #define DT_RELSZ 18 530 #define DT_RELENT 19 531 #define DT_PLTREL 20 532 #define DT_DEBUG 21 533 #define DT_TEXTREL 22 534 #define DT_JMPREL 23 535 #define DT_BIND_NOW 24 /* no lazy binding */ 536 #define DT_INIT_ARRAY 25 /* init function array */ 537 #define DT_FINI_ARRAY 26 /* termination function array */ 538 #define DT_INIT_ARRAYSZ 27 /* init function array size */ 539 #define DT_FINI_ARRAYSZ 28 /* termination function array size */ 540 #define DT_RUNPATH 29 /* library search path (supersedes DT_RPATH) */ 541 #define DT_FLAGS 30 /* flags (see below) */ 542 #define DT_ENCODING 32 543 #define DT_PREINIT_ARRAY 32 /* preinitialization array */ 544 #define DT_PREINIT_ARRAYSZ 33 /* preinitialization array size */ 545 546 #define DT_VERSYM 0x6ffffff0 /* symbol version table */ 547 #define DT_VERDEF 0x6ffffffc /* version definition table */ 548 #define DT_VERDEFNUM 0x6ffffffd /* number of version definitions */ 549 #define DT_VERNEED 0x6ffffffe /* table with needed versions */ 550 #define DT_VERNEEDNUM 0x6fffffff /* number of needed versions */ 551 552 #define DT_LOPROC 0x70000000 553 #define DT_HIPROC 0x7fffffff 554 555 /* DT_FLAGS values */ 556 #define DF_ORIGIN 0x01 557 #define DF_SYMBOLIC 0x02 558 #define DF_TEXTREL 0x04 559 #define DF_BIND_NOW 0x08 560 #define DF_STATIC_TLS 0x10 561 562 563 /* version definition section */ 564 565 typedef struct { 566 Elf32_Half vd_version; /* version revision */ 567 Elf32_Half vd_flags; /* version information flags */ 568 Elf32_Half vd_ndx; /* version index as specified in the 569 symbol version table */ 570 Elf32_Half vd_cnt; /* number of associated verdaux entries */ 571 Elf32_Word vd_hash; /* version name hash value */ 572 Elf32_Word vd_aux; /* byte offset to verdaux array */ 573 Elf32_Word vd_next; /* byte offset to next verdef entry */ 574 } Elf32_Verdef; 575 576 typedef struct { 577 Elf64_Half vd_version; /* version revision */ 578 Elf64_Half vd_flags; /* version information flags */ 579 Elf64_Half vd_ndx; /* version index as specified in the 580 symbol version table */ 581 Elf64_Half vd_cnt; /* number of associated verdaux entries */ 582 Elf64_Word vd_hash; /* version name hash value */ 583 Elf64_Word vd_aux; /* byte offset to verdaux array */ 584 Elf64_Word vd_next; /* byte offset to next verdef entry */ 585 } Elf64_Verdef; 586 587 /* values for vd_version (version revision) */ 588 #define VER_DEF_NONE 0 /* no version */ 589 #define VER_DEF_CURRENT 1 /* current version */ 590 #define VER_DEF_NUM 2 /* given version number */ 591 592 /* values for vd_flags (version information flags) */ 593 #define VER_FLG_BASE 0x1 /* version definition of file itself */ 594 #define VER_FLG_WEAK 0x2 /* weak version identifier */ 595 596 /* values for versym symbol index */ 597 #define VER_NDX_LOCAL 0 /* symbol is local */ 598 #define VER_NDX_GLOBAL 1 /* symbol is global/unversioned */ 599 #define VER_NDX_INITIAL 2 /* initial version -- that's the one given 600 to symbols when a library becomes 601 versioned; handled by the linker (and 602 runtime loader) similar to 603 VER_NDX_GLOBAL */ 604 #define VER_NDX_LORESERVE 0xff00 /* beginning of reserved entries */ 605 #define VER_NDX_ELIMINATE 0xff01 /* symbol is to be eliminated */ 606 607 #define VER_NDX_FLAG_HIDDEN 0x8000 /* flag: version is hidden */ 608 #define VER_NDX_MASK 0x7fff /* mask to get the actual version index */ 609 #define VER_NDX(x) ((x) & VER_NDX_MASK) 610 611 612 /* auxiliary version information */ 613 614 typedef struct { 615 Elf32_Word vda_name; /* string table offset to version or dependency 616 name */ 617 Elf32_Word vda_next; /* byte offset to next verdaux entry */ 618 } Elf32_Verdaux; 619 620 typedef struct { 621 Elf64_Word vda_name; /* string table offset to version or dependency 622 name */ 623 Elf64_Word vda_next; /* byte offset to next verdaux entry */ 624 } Elf64_Verdaux; 625 626 627 /* version dependency section */ 628 629 typedef struct { 630 Elf32_Half vn_version; /* version of structure */ 631 Elf32_Half vn_cnt; /* number of associated vernaux entries */ 632 Elf32_Word vn_file; /* byte offset to file name for this 633 dependency */ 634 Elf32_Word vn_aux; /* byte offset to vernaux array */ 635 Elf32_Word vn_next; /* byte offset to next verneed entry */ 636 } Elf32_Verneed; 637 638 typedef struct { 639 Elf64_Half vn_version; /* version of structure */ 640 Elf64_Half vn_cnt; /* number of associated vernaux entries */ 641 Elf64_Word vn_file; /* byte offset to file name for this 642 dependency */ 643 Elf64_Word vn_aux; /* byte offset to vernaux array */ 644 Elf64_Word vn_next; /* byte offset to next verneed entry */ 645 } Elf64_Verneed; 646 647 /* values for vn_version (version revision) */ 648 #define VER_NEED_NONE 0 /* no version */ 649 #define VER_NEED_CURRENT 1 /* current version */ 650 #define VER_NEED_NUM 2 /* given version number */ 651 652 653 /* auxiliary needed version information */ 654 655 typedef struct { 656 Elf32_Word vna_hash; /* dependency name hash value */ 657 Elf32_Half vna_flags; /* dependency specific information flags */ 658 Elf32_Half vna_other; /* version index as specified in the symbol 659 version table */ 660 Elf32_Word vna_name; /* string table offset to dependency name */ 661 Elf32_Word vna_next; /* byte offset to next vernaux entry */ 662 } Elf32_Vernaux; 663 664 typedef struct { 665 Elf64_Word vna_hash; /* dependency name hash value */ 666 Elf64_Half vna_flags; /* dependency specific information flags */ 667 Elf64_Half vna_other; /* version index as specified in the symbol 668 version table */ 669 Elf64_Word vna_name; /* string table offset to dependency name */ 670 Elf64_Word vna_next; /* byte offset to next vernaux entry */ 671 } Elf64_Vernaux; 672 673 /* values for vna_flags */ 674 #define VER_FLG_WEAK 0x2 /* weak version identifier */ 675 676 677 /*** core files ***/ 678 679 /* note section header */ 680 681 typedef struct { 682 Elf32_Word n_namesz; /* length of the note's name */ 683 Elf32_Word n_descsz; /* length of the note's descriptor */ 684 Elf32_Word n_type; /* note type */ 685 } Elf32_Nhdr; 686 687 typedef struct { 688 Elf64_Word n_namesz; /* length of the note's name */ 689 Elf64_Word n_descsz; /* length of the note's descriptor */ 690 Elf64_Word n_type; /* note type */ 691 } Elf64_Nhdr; 692 693 /* values for note name */ 694 #define ELF_NOTE_CORE "CORE" 695 #define ELF_NOTE_HAIKU "Haiku" 696 697 /* values for note type (n_type) */ 698 /* ELF_NOTE_CORE/... */ 699 #define NT_FILE 0x46494c45 /* mapped files */ 700 701 /* ELF_NOTE_HAIKU/... */ 702 #define NT_TEAM 0x7465616d /* team */ 703 #define NT_AREAS 0x61726561 /* areas */ 704 #define NT_IMAGES 0x696d6167 /* images */ 705 #define NT_THREADS 0x74687264 /* threads */ 706 #define NT_SYMBOLS 0x73796d73 /* symbols */ 707 708 /* NT_TEAM: uint32 entrySize; Elf32_Note_Team; char[] args */ 709 typedef struct { 710 int32 nt_id; /* team ID */ 711 int32 nt_uid; /* team owner ID */ 712 int32 nt_gid; /* team group ID */ 713 } Elf32_Note_Team; 714 715 typedef Elf32_Note_Team Elf64_Note_Team; 716 717 /* NT_AREAS: 718 * uint32 count; 719 * uint32 entrySize; 720 * Elf32_Note_Area_Entry[count]; 721 * char[] names 722 */ 723 typedef struct { 724 int32 na_id; /* area ID */ 725 uint32 na_lock; /* lock type (B_NO_LOCK, ...) */ 726 uint32 na_protection; /* protection (B_READ_AREA | ...) */ 727 uint32 na_base; /* area base address */ 728 uint32 na_size; /* area size */ 729 uint32 na_ram_size; /* physical memory used */ 730 } Elf32_Note_Area_Entry; 731 732 /* NT_AREAS: 733 * uint32 count; 734 * uint32 entrySize; 735 * Elf64_Note_Area_Entry[count]; 736 * char[] names 737 */ 738 typedef struct { 739 int32 na_id; /* area ID */ 740 uint32 na_lock; /* lock type (B_NO_LOCK, ...) */ 741 uint32 na_protection; /* protection (B_READ_AREA | ...) */ 742 uint32 na_pad1; 743 uint64 na_base; /* area base address */ 744 uint64 na_size; /* area size */ 745 uint64 na_ram_size; /* physical memory used */ 746 } Elf64_Note_Area_Entry; 747 748 /* NT_IMAGES: 749 * uint32 count; 750 * uint32 entrySize; 751 * Elf32_Note_Image_Entry[count]; 752 * char[] names 753 */ 754 typedef struct { 755 int32 ni_id; /* image ID */ 756 int32 ni_type; /* image type (B_APP_IMAGE, ...) */ 757 uint32 ni_init_routine; /* address of init function */ 758 uint32 ni_term_routine; /* address of termination function */ 759 int32 ni_device; /* device ID of mapped file */ 760 int64 ni_node; /* node ID of mapped file */ 761 uint32 ni_text_base; /* base address of text segment */ 762 uint32 ni_text_size; /* size of text segment */ 763 int32 ni_text_delta; /* delta of the text segment relative to 764 load address specified in the ELF file */ 765 uint32 ni_data_base; /* base address of data segment */ 766 uint32 ni_data_size; /* size of data segment */ 767 uint32 ni_symbol_table; /* address of dynamic symbol table */ 768 uint32 ni_symbol_hash; /* address of dynamic symbol hash */ 769 uint32 ni_string_table; /* address of dynamic string table */ 770 } Elf32_Note_Image_Entry; 771 772 /* NT_IMAGES: 773 * uint32 count; 774 * uint32 entrySize; 775 * Elf64_Note_Image_Entry[count]; 776 * char[] names 777 */ 778 typedef struct { 779 int32 ni_id; /* image ID */ 780 int32 ni_type; /* image type (B_APP_IMAGE, ...) */ 781 uint64 ni_init_routine; /* address of init function */ 782 uint64 ni_term_routine; /* address of termination function */ 783 uint32 ni_pad1; 784 int32 ni_device; /* device ID of mapped file */ 785 int64 ni_node; /* node ID of mapped file */ 786 uint64 ni_text_base; /* base address of text segment */ 787 uint64 ni_text_size; /* size of text segment */ 788 int64 ni_text_delta; /* delta of the text segment relative to 789 load address specified in the ELF file */ 790 uint64 ni_data_base; /* base address of data segment */ 791 uint64 ni_data_size; /* size of data segment */ 792 uint64 ni_symbol_table; /* address of dynamic symbol table */ 793 uint64 ni_symbol_hash; /* address of dynamic symbol hash */ 794 uint64 ni_string_table; /* address of dynamic string table */ 795 } Elf64_Note_Image_Entry; 796 797 /* NT_THREADS: 798 * uint32 count; 799 * uint32 entrySize; 800 * uint32 cpuStateSize; 801 * {Elf32_Note_Thread_Entry, uint8[cpuStateSize] cpuState}[count]; 802 * char[] names 803 */ 804 typedef struct { 805 int32 nth_id; /* thread ID */ 806 int32 nth_state; /* thread state (B_THREAD_RUNNING, ...) */ 807 int32 nth_priority; /* thread priority */ 808 uint32 nth_stack_base; /* thread stack base address */ 809 uint32 nth_stack_end; /* thread stack end address */ 810 } Elf32_Note_Thread_Entry; 811 812 /* NT_THREADS: 813 * uint32 count; 814 * uint32 entrySize; 815 * uint32 cpuStateSize; 816 * {Elf64_Note_Thread_Entry, uint8[cpuStateSize] cpuState}[count]; 817 * char[] names 818 */ 819 typedef struct { 820 int32 nth_id; /* thread ID */ 821 int32 nth_state; /* thread state (B_THREAD_RUNNING, ...) */ 822 int32 nth_priority; /* thread priority */ 823 uint32 nth_pad1; 824 uint64 nth_stack_base; /* thread stack base address */ 825 uint64 nth_stack_end; /* thread stack end address */ 826 } Elf64_Note_Thread_Entry; 827 828 /* NT_SYMBOLS: 829 * int32 imageId; 830 * uint32 symbolCount; 831 * uint32 entrySize; 832 * Elf{32,64}_Sym[count]; 833 * char[] strings 834 */ 835 836 837 /*** inline functions ***/ 838 839 #ifdef __cplusplus 840 841 inline bool 842 Elf32_Ehdr::IsHostEndian() const 843 { 844 #if B_HOST_IS_LENDIAN 845 return e_ident[EI_DATA] == ELFDATA2LSB; 846 #elif B_HOST_IS_BENDIAN 847 return e_ident[EI_DATA] == ELFDATA2MSB; 848 #endif 849 } 850 851 852 inline bool 853 Elf64_Ehdr::IsHostEndian() const 854 { 855 #if B_HOST_IS_LENDIAN 856 return e_ident[EI_DATA] == ELFDATA2LSB; 857 #elif B_HOST_IS_BENDIAN 858 return e_ident[EI_DATA] == ELFDATA2MSB; 859 #endif 860 } 861 862 863 inline bool 864 Elf32_Phdr::IsReadWrite() const 865 { 866 return !(~p_flags & (PF_READ | PF_WRITE)); 867 } 868 869 870 inline bool 871 Elf32_Phdr::IsExecutable() const 872 { 873 return (p_flags & PF_EXECUTE) != 0; 874 } 875 876 877 inline bool 878 Elf64_Phdr::IsReadWrite() const 879 { 880 return !(~p_flags & (PF_READ | PF_WRITE)); 881 } 882 883 884 inline bool 885 Elf64_Phdr::IsExecutable() const 886 { 887 return (p_flags & PF_EXECUTE) != 0; 888 } 889 890 891 inline uint8 892 Elf32_Sym::Bind() const 893 { 894 return ELF32_ST_BIND(st_info); 895 } 896 897 898 inline uint8 899 Elf32_Sym::Type() const 900 { 901 return ELF32_ST_TYPE(st_info); 902 } 903 904 905 inline void 906 Elf32_Sym::SetInfo(uint8 bind, uint8 type) 907 { 908 st_info = ELF32_ST_INFO(bind, type); 909 } 910 911 912 inline uint8 913 Elf64_Sym::Bind() const 914 { 915 return ELF64_ST_BIND(st_info); 916 } 917 918 919 inline uint8 920 Elf64_Sym::Type() const 921 { 922 return ELF64_ST_TYPE(st_info); 923 } 924 925 926 inline void 927 Elf64_Sym::SetInfo(uint8 bind, uint8 type) 928 { 929 st_info = ELF64_ST_INFO(bind, type); 930 } 931 932 933 inline uint8 934 Elf32_Rel::SymbolIndex() const 935 { 936 return ELF32_R_SYM(r_info); 937 } 938 939 940 inline uint8 941 Elf32_Rel::Type() const 942 { 943 return ELF32_R_TYPE(r_info); 944 } 945 946 947 inline uint8 948 Elf64_Rel::SymbolIndex() const 949 { 950 return ELF64_R_SYM(r_info); 951 } 952 953 954 inline uint8 955 Elf64_Rel::Type() const 956 { 957 return ELF64_R_TYPE(r_info); 958 } 959 960 #endif /* __cplusplus */ 961 962 963 #endif /* _ELF_H */ 964