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 13typedef uint32 Elf32_Addr; 14typedef uint16 Elf32_Half; 15typedef uint32 Elf32_Off; 16typedef int32 Elf32_Sword; 17typedef uint32 Elf32_Word; 18 19typedef Elf32_Half Elf32_Versym; 20 21typedef uint64 Elf64_Addr; 22typedef uint64 Elf64_Off; 23typedef uint16 Elf64_Half; 24typedef uint32 Elf64_Word; 25typedef int32 Elf64_Sword; 26typedef uint64 Elf64_Xword; 27typedef int64 Elf64_Sxword; 28 29typedef Elf64_Half Elf64_Versym; 30 31 32/*** ELF header ***/ 33 34#define EI_NIDENT 16 35 36typedef 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 57typedef 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 225typedef 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 238typedef 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#define SHT_INIT_ARRAY 14 274#define SHT_FINI_ARRAY 15 275 276#define SHT_GNU_verdef 0x6ffffffd /* version definition section */ 277#define SHT_GNU_verneed 0x6ffffffe /* version needs section */ 278#define SHT_GNU_versym 0x6fffffff /* version symbol table */ 279 280#define SHT_LOPROC 0x70000000 281#define SHT_HIPROC 0x7fffffff 282#define SHT_LOUSER 0x80000000 283#define SHT_HIUSER 0xffffffff 284 285/* section header flags */ 286#define SHF_WRITE 1 287#define SHF_ALLOC 2 288#define SHF_EXECINSTR 4 289 290#define SHF_MASKPROC 0xf0000000 291 292 293/*** program header ***/ 294 295typedef struct { 296 Elf32_Word p_type; 297 Elf32_Off p_offset; /* offset from the beginning of the file of the segment */ 298 Elf32_Addr p_vaddr; /* virtual address for the segment in memory */ 299 Elf32_Addr p_paddr; 300 Elf32_Word p_filesz; /* the size of the segment in the file */ 301 Elf32_Word p_memsz; /* the size of the segment in memory */ 302 Elf32_Word p_flags; 303 Elf32_Word p_align; 304 305#ifdef __cplusplus 306 bool IsReadWrite() const; 307 bool IsExecutable() const; 308#endif 309} Elf32_Phdr; 310 311typedef struct { 312 Elf64_Word p_type; 313 Elf64_Word p_flags; 314 Elf64_Off p_offset; /* offset from the beginning of the file of the segment */ 315 Elf64_Addr p_vaddr; /* virtual address for the segment in memory */ 316 Elf64_Addr p_paddr; 317 Elf64_Xword p_filesz; /* the size of the segment in the file */ 318 Elf64_Xword p_memsz; /* the size of the segment in memory */ 319 Elf64_Xword p_align; 320 321#ifdef __cplusplus 322 bool IsReadWrite() const; 323 bool IsExecutable() const; 324#endif 325} Elf64_Phdr; 326 327/* program header segment types */ 328#define PT_NULL 0 329#define PT_LOAD 1 330#define PT_DYNAMIC 2 331#define PT_INTERP 3 332#define PT_NOTE 4 333#define PT_SHLIB 5 334#define PT_PHDR 6 335#define PT_TLS 7 336#define PT_EH_FRAME 0x6474e550 337#define PT_STACK 0x6474e551 338#define PT_RELRO 0x6474e552 339 340#define PT_LOPROC 0x70000000 341#define PT_ARM_UNWIND 0x70000001 342#define PT_RISCV_ATTRIBUTES 0x70000003 343#define PT_HIPROC 0x7fffffff 344 345/* program header segment flags */ 346#define PF_EXECUTE 0x1 347#define PF_WRITE 0x2 348#define PF_READ 0x4 349#define PF_PROTECTION_MASK (PF_EXECUTE | PF_WRITE | PF_READ) 350 351#define PF_MASKPROC 0xf0000000 352 353 354/* symbol table entry */ 355 356typedef struct { 357 Elf32_Word st_name; 358 Elf32_Addr st_value; 359 Elf32_Word st_size; 360 uint8 st_info; 361 uint8 st_other; 362 Elf32_Half st_shndx; 363 364#ifdef __cplusplus 365 uint8 Bind() const; 366 uint8 Type() const; 367 void SetInfo(uint8 bind, uint8 type); 368#endif 369} Elf32_Sym; 370 371typedef struct { 372 Elf64_Word st_name; 373 uint8 st_info; 374 uint8 st_other; 375 Elf64_Half st_shndx; 376 Elf64_Addr st_value; 377 Elf64_Xword st_size; 378 379#ifdef __cplusplus 380 uint8 Bind() const; 381 uint8 Type() const; 382 void SetInfo(uint8 bind, uint8 type); 383#endif 384} Elf64_Sym; 385 386#define ELF32_ST_BIND(i) ((i) >> 4) 387#define ELF32_ST_TYPE(i) ((i) & 0xf) 388#define ELF32_ST_INFO(b, t) (((b) << 4) + ((t) & 0xf)) 389 390#define ELF64_ST_BIND(i) ((i) >> 4) 391#define ELF64_ST_TYPE(i) ((i) & 0xf) 392#define ELF64_ST_INFO(b, t) (((b) << 4) + ((t) & 0xf)) 393 394/* symbol types */ 395#define STT_NOTYPE 0 396#define STT_OBJECT 1 397#define STT_FUNC 2 398#define STT_SECTION 3 399#define STT_FILE 4 400#define STT_TLS 6 401#define STT_LOPROC 13 402#define STT_HIPROC 15 403 404/* symbol binding */ 405#define STB_LOCAL 0 406#define STB_GLOBAL 1 407#define STB_WEAK 2 408#define STB_LOPROC 13 409#define STB_HIPROC 15 410 411/* special symbol indices */ 412#define STN_UNDEF 0 413 414/* relocation types */ 415 416#define R_386_NONE 0 417#define R_386_32 1 /* add symbol value */ 418#define R_386_PC32 2 /* add PC relative symbol value */ 419#define R_386_GOT32 3 /* add PC relative GOT offset */ 420#define R_386_PLT32 4 /* add PC relative PLT offset */ 421#define R_386_COPY 5 /* copy data from shared object */ 422#define R_386_GLOB_DAT 6 /* set GOT entry to data address */ 423#define R_386_JMP_SLOT 7 /* set GOT entry to code address */ 424#define R_386_RELATIVE 8 /* add load address of shared object */ 425#define R_386_GOTOFF 9 /* add GOT relative symbol address */ 426#define R_386_GOTPC 10 /* add PC relative GOT table address */ 427#define R_386_TLS_DTPMOD32 35 428#define R_386_TLS_DTPOFF32 36 429 430 431/* relocation table entry */ 432 433typedef struct { 434 Elf32_Addr r_offset; 435 Elf32_Word r_info; 436 437#ifdef __cplusplus 438 uint8 SymbolIndex() const; 439 uint8 Type() const; 440#endif 441} Elf32_Rel; 442 443typedef struct { 444 Elf64_Addr r_offset; 445 Elf64_Xword r_info; 446 447#ifdef __cplusplus 448 uint8 SymbolIndex() const; 449 uint8 Type() const; 450#endif 451} Elf64_Rel; 452 453#ifdef __cplusplus 454typedef struct Elf32_Rela : public Elf32_Rel { 455#else 456typedef struct { 457 Elf32_Addr r_offset; 458 Elf32_Word r_info; 459#endif 460 Elf32_Sword r_addend; 461} Elf32_Rela; 462 463#ifdef __cplusplus 464typedef struct Elf64_Rela : public Elf64_Rel { 465#else 466typedef struct { 467 Elf64_Addr r_offset; 468 Elf64_Xword r_info; 469#endif 470 Elf64_Sxword r_addend; 471} Elf64_Rela; 472 473#define ELF32_R_SYM(i) ((i) >> 8) 474#define ELF32_R_TYPE(i) ((unsigned char)(i)) 475#define ELF32_R_INFO(s, t) (((s) << 8) + (unsigned char)(t)) 476 477#define ELF64_R_SYM(i) ((i) >> 32) 478#define ELF64_R_TYPE(i) ((i) & 0xffffffffL) 479#define ELF64_R_INFO(s, t) ((((Elf64_Xword)(s)) << 32) + ((t) & 0xffffffffL)) 480 481 482/* dynamic section entry */ 483 484typedef struct { 485 Elf32_Sword d_tag; 486 union { 487 Elf32_Word d_val; 488 Elf32_Addr d_ptr; 489 } d_un; 490} Elf32_Dyn; 491 492typedef struct { 493 Elf64_Sxword d_tag; 494 union { 495 Elf64_Xword d_val; 496 Elf64_Addr d_ptr; 497 } d_un; 498} Elf64_Dyn; 499 500/* dynamic entry type */ 501#define DT_NULL 0 502#define DT_NEEDED 1 503#define DT_PLTRELSZ 2 504#define DT_PLTGOT 3 505#define DT_HASH 4 506#define DT_STRTAB 5 507#define DT_SYMTAB 6 508#define DT_RELA 7 509#define DT_RELASZ 8 510#define DT_RELAENT 9 511#define DT_STRSZ 10 512#define DT_SYMENT 11 513#define DT_INIT 12 514#define DT_FINI 13 515#define DT_SONAME 14 516#define DT_RPATH 15 517#define DT_SYMBOLIC 16 518#define DT_REL 17 519#define DT_RELSZ 18 520#define DT_RELENT 19 521#define DT_PLTREL 20 522#define DT_DEBUG 21 523#define DT_TEXTREL 22 524#define DT_JMPREL 23 525#define DT_BIND_NOW 24 /* no lazy binding */ 526#define DT_INIT_ARRAY 25 /* init function array */ 527#define DT_FINI_ARRAY 26 /* termination function array */ 528#define DT_INIT_ARRAYSZ 27 /* init function array size */ 529#define DT_FINI_ARRAYSZ 28 /* termination function array size */ 530#define DT_RUNPATH 29 /* library search path (supersedes DT_RPATH) */ 531#define DT_FLAGS 30 /* flags (see below) */ 532#define DT_ENCODING 32 533#define DT_PREINIT_ARRAY 32 /* preinitialization array */ 534#define DT_PREINIT_ARRAYSZ 33 /* preinitialization array size */ 535 536#define DT_VERSYM 0x6ffffff0 /* symbol version table */ 537#define DT_VERDEF 0x6ffffffc /* version definition table */ 538#define DT_VERDEFNUM 0x6ffffffd /* number of version definitions */ 539#define DT_VERNEED 0x6ffffffe /* table with needed versions */ 540#define DT_VERNEEDNUM 0x6fffffff /* number of needed versions */ 541 542#define DT_LOPROC 0x70000000 543#define DT_HIPROC 0x7fffffff 544 545/* DT_FLAGS values */ 546#define DF_ORIGIN 0x01 547#define DF_SYMBOLIC 0x02 548#define DF_TEXTREL 0x04 549#define DF_BIND_NOW 0x08 550#define DF_STATIC_TLS 0x10 551 552 553/* version definition section */ 554 555typedef struct { 556 Elf32_Half vd_version; /* version revision */ 557 Elf32_Half vd_flags; /* version information flags */ 558 Elf32_Half vd_ndx; /* version index as specified in the 559 symbol version table */ 560 Elf32_Half vd_cnt; /* number of associated verdaux entries */ 561 Elf32_Word vd_hash; /* version name hash value */ 562 Elf32_Word vd_aux; /* byte offset to verdaux array */ 563 Elf32_Word vd_next; /* byte offset to next verdef entry */ 564} Elf32_Verdef; 565 566typedef struct { 567 Elf64_Half vd_version; /* version revision */ 568 Elf64_Half vd_flags; /* version information flags */ 569 Elf64_Half vd_ndx; /* version index as specified in the 570 symbol version table */ 571 Elf64_Half vd_cnt; /* number of associated verdaux entries */ 572 Elf64_Word vd_hash; /* version name hash value */ 573 Elf64_Word vd_aux; /* byte offset to verdaux array */ 574 Elf64_Word vd_next; /* byte offset to next verdef entry */ 575} Elf64_Verdef; 576 577/* values for vd_version (version revision) */ 578#define VER_DEF_NONE 0 /* no version */ 579#define VER_DEF_CURRENT 1 /* current version */ 580#define VER_DEF_NUM 2 /* given version number */ 581 582/* values for vd_flags (version information flags) */ 583#define VER_FLG_BASE 0x1 /* version definition of file itself */ 584#define VER_FLG_WEAK 0x2 /* weak version identifier */ 585 586/* values for versym symbol index */ 587#define VER_NDX_LOCAL 0 /* symbol is local */ 588#define VER_NDX_GLOBAL 1 /* symbol is global/unversioned */ 589#define VER_NDX_INITIAL 2 /* initial version -- that's the one given 590 to symbols when a library becomes 591 versioned; handled by the linker (and 592 runtime loader) similar to 593 VER_NDX_GLOBAL */ 594#define VER_NDX_LORESERVE 0xff00 /* beginning of reserved entries */ 595#define VER_NDX_ELIMINATE 0xff01 /* symbol is to be eliminated */ 596 597#define VER_NDX_FLAG_HIDDEN 0x8000 /* flag: version is hidden */ 598#define VER_NDX_MASK 0x7fff /* mask to get the actual version index */ 599#define VER_NDX(x) ((x) & VER_NDX_MASK) 600 601 602/* auxiliary version information */ 603 604typedef struct { 605 Elf32_Word vda_name; /* string table offset to version or dependency 606 name */ 607 Elf32_Word vda_next; /* byte offset to next verdaux entry */ 608} Elf32_Verdaux; 609 610typedef struct { 611 Elf64_Word vda_name; /* string table offset to version or dependency 612 name */ 613 Elf64_Word vda_next; /* byte offset to next verdaux entry */ 614} Elf64_Verdaux; 615 616 617/* version dependency section */ 618 619typedef struct { 620 Elf32_Half vn_version; /* version of structure */ 621 Elf32_Half vn_cnt; /* number of associated vernaux entries */ 622 Elf32_Word vn_file; /* byte offset to file name for this 623 dependency */ 624 Elf32_Word vn_aux; /* byte offset to vernaux array */ 625 Elf32_Word vn_next; /* byte offset to next verneed entry */ 626} Elf32_Verneed; 627 628typedef struct { 629 Elf64_Half vn_version; /* version of structure */ 630 Elf64_Half vn_cnt; /* number of associated vernaux entries */ 631 Elf64_Word vn_file; /* byte offset to file name for this 632 dependency */ 633 Elf64_Word vn_aux; /* byte offset to vernaux array */ 634 Elf64_Word vn_next; /* byte offset to next verneed entry */ 635} Elf64_Verneed; 636 637/* values for vn_version (version revision) */ 638#define VER_NEED_NONE 0 /* no version */ 639#define VER_NEED_CURRENT 1 /* current version */ 640#define VER_NEED_NUM 2 /* given version number */ 641 642 643/* auxiliary needed version information */ 644 645typedef struct { 646 Elf32_Word vna_hash; /* dependency name hash value */ 647 Elf32_Half vna_flags; /* dependency specific information flags */ 648 Elf32_Half vna_other; /* version index as specified in the symbol 649 version table */ 650 Elf32_Word vna_name; /* string table offset to dependency name */ 651 Elf32_Word vna_next; /* byte offset to next vernaux entry */ 652} Elf32_Vernaux; 653 654typedef struct { 655 Elf64_Word vna_hash; /* dependency name hash value */ 656 Elf64_Half vna_flags; /* dependency specific information flags */ 657 Elf64_Half vna_other; /* version index as specified in the symbol 658 version table */ 659 Elf64_Word vna_name; /* string table offset to dependency name */ 660 Elf64_Word vna_next; /* byte offset to next vernaux entry */ 661} Elf64_Vernaux; 662 663/* values for vna_flags */ 664#define VER_FLG_WEAK 0x2 /* weak version identifier */ 665 666 667/*** core files ***/ 668 669/* note section header */ 670 671typedef struct { 672 Elf32_Word n_namesz; /* length of the note's name */ 673 Elf32_Word n_descsz; /* length of the note's descriptor */ 674 Elf32_Word n_type; /* note type */ 675} Elf32_Nhdr; 676 677typedef struct { 678 Elf64_Word n_namesz; /* length of the note's name */ 679 Elf64_Word n_descsz; /* length of the note's descriptor */ 680 Elf64_Word n_type; /* note type */ 681} Elf64_Nhdr; 682 683/* values for note name */ 684#define ELF_NOTE_CORE "CORE" 685#define ELF_NOTE_HAIKU "Haiku" 686 687/* values for note type (n_type) */ 688/* ELF_NOTE_CORE/... */ 689#define NT_FILE 0x46494c45 /* mapped files */ 690 691/* ELF_NOTE_HAIKU/... */ 692#define NT_TEAM 0x7465616d /* team */ 693#define NT_AREAS 0x61726561 /* areas */ 694#define NT_IMAGES 0x696d6167 /* images */ 695#define NT_THREADS 0x74687264 /* threads */ 696#define NT_SYMBOLS 0x73796d73 /* symbols */ 697 698/* NT_TEAM: uint32 entrySize; Elf32_Note_Team; char[] args */ 699typedef struct { 700 int32 nt_id; /* team ID */ 701 int32 nt_uid; /* team owner ID */ 702 int32 nt_gid; /* team group ID */ 703} Elf32_Note_Team; 704 705typedef Elf32_Note_Team Elf64_Note_Team; 706 707/* NT_AREAS: 708 * uint32 count; 709 * uint32 entrySize; 710 * Elf32_Note_Area_Entry[count]; 711 * char[] names 712 */ 713typedef struct { 714 int32 na_id; /* area ID */ 715 uint32 na_lock; /* lock type (B_NO_LOCK, ...) */ 716 uint32 na_protection; /* protection (B_READ_AREA | ...) */ 717 uint32 na_base; /* area base address */ 718 uint32 na_size; /* area size */ 719 uint32 na_ram_size; /* physical memory used */ 720} Elf32_Note_Area_Entry; 721 722/* NT_AREAS: 723 * uint32 count; 724 * uint32 entrySize; 725 * Elf64_Note_Area_Entry[count]; 726 * char[] names 727 */ 728typedef struct { 729 int32 na_id; /* area ID */ 730 uint32 na_lock; /* lock type (B_NO_LOCK, ...) */ 731 uint32 na_protection; /* protection (B_READ_AREA | ...) */ 732 uint32 na_pad1; 733 uint64 na_base; /* area base address */ 734 uint64 na_size; /* area size */ 735 uint64 na_ram_size; /* physical memory used */ 736} Elf64_Note_Area_Entry; 737 738/* NT_IMAGES: 739 * uint32 count; 740 * uint32 entrySize; 741 * Elf32_Note_Image_Entry[count]; 742 * char[] names 743 */ 744typedef struct { 745 int32 ni_id; /* image ID */ 746 int32 ni_type; /* image type (B_APP_IMAGE, ...) */ 747 uint32 ni_init_routine; /* address of init function */ 748 uint32 ni_term_routine; /* address of termination function */ 749 int32 ni_device; /* device ID of mapped file */ 750 int64 ni_node; /* node ID of mapped file */ 751 uint32 ni_text_base; /* base address of text segment */ 752 uint32 ni_text_size; /* size of text segment */ 753 int32 ni_text_delta; /* delta of the text segment relative to 754 load address specified in the ELF file */ 755 uint32 ni_data_base; /* base address of data segment */ 756 uint32 ni_data_size; /* size of data segment */ 757 uint32 ni_symbol_table; /* address of dynamic symbol table */ 758 uint32 ni_symbol_hash; /* address of dynamic symbol hash */ 759 uint32 ni_string_table; /* address of dynamic string table */ 760} Elf32_Note_Image_Entry; 761 762/* NT_IMAGES: 763 * uint32 count; 764 * uint32 entrySize; 765 * Elf64_Note_Image_Entry[count]; 766 * char[] names 767 */ 768typedef struct { 769 int32 ni_id; /* image ID */ 770 int32 ni_type; /* image type (B_APP_IMAGE, ...) */ 771 uint64 ni_init_routine; /* address of init function */ 772 uint64 ni_term_routine; /* address of termination function */ 773 uint32 ni_pad1; 774 int32 ni_device; /* device ID of mapped file */ 775 int64 ni_node; /* node ID of mapped file */ 776 uint64 ni_text_base; /* base address of text segment */ 777 uint64 ni_text_size; /* size of text segment */ 778 int64 ni_text_delta; /* delta of the text segment relative to 779 load address specified in the ELF file */ 780 uint64 ni_data_base; /* base address of data segment */ 781 uint64 ni_data_size; /* size of data segment */ 782 uint64 ni_symbol_table; /* address of dynamic symbol table */ 783 uint64 ni_symbol_hash; /* address of dynamic symbol hash */ 784 uint64 ni_string_table; /* address of dynamic string table */ 785} Elf64_Note_Image_Entry; 786 787/* NT_THREADS: 788 * uint32 count; 789 * uint32 entrySize; 790 * uint32 cpuStateSize; 791 * {Elf32_Note_Thread_Entry, uint8[cpuStateSize] cpuState}[count]; 792 * char[] names 793 */ 794typedef struct { 795 int32 nth_id; /* thread ID */ 796 int32 nth_state; /* thread state (B_THREAD_RUNNING, ...) */ 797 int32 nth_priority; /* thread priority */ 798 uint32 nth_stack_base; /* thread stack base address */ 799 uint32 nth_stack_end; /* thread stack end address */ 800} Elf32_Note_Thread_Entry; 801 802/* NT_THREADS: 803 * uint32 count; 804 * uint32 entrySize; 805 * uint32 cpuStateSize; 806 * {Elf64_Note_Thread_Entry, uint8[cpuStateSize] cpuState}[count]; 807 * char[] names 808 */ 809typedef struct { 810 int32 nth_id; /* thread ID */ 811 int32 nth_state; /* thread state (B_THREAD_RUNNING, ...) */ 812 int32 nth_priority; /* thread priority */ 813 uint32 nth_pad1; 814 uint64 nth_stack_base; /* thread stack base address */ 815 uint64 nth_stack_end; /* thread stack end address */ 816} Elf64_Note_Thread_Entry; 817 818/* NT_SYMBOLS: 819 * int32 imageId; 820 * uint32 symbolCount; 821 * uint32 entrySize; 822 * Elf{32,64}_Sym[count]; 823 * char[] strings 824 */ 825 826 827/*** inline functions ***/ 828 829#ifdef __cplusplus 830 831inline bool 832Elf32_Ehdr::IsHostEndian() const 833{ 834#if B_HOST_IS_LENDIAN 835 return e_ident[EI_DATA] == ELFDATA2LSB; 836#elif B_HOST_IS_BENDIAN 837 return e_ident[EI_DATA] == ELFDATA2MSB; 838#endif 839} 840 841 842inline bool 843Elf64_Ehdr::IsHostEndian() const 844{ 845#if B_HOST_IS_LENDIAN 846 return e_ident[EI_DATA] == ELFDATA2LSB; 847#elif B_HOST_IS_BENDIAN 848 return e_ident[EI_DATA] == ELFDATA2MSB; 849#endif 850} 851 852 853inline bool 854Elf32_Phdr::IsReadWrite() const 855{ 856 return !(~p_flags & (PF_READ | PF_WRITE)); 857} 858 859 860inline bool 861Elf32_Phdr::IsExecutable() const 862{ 863 return (p_flags & PF_EXECUTE) != 0; 864} 865 866 867inline bool 868Elf64_Phdr::IsReadWrite() const 869{ 870 return !(~p_flags & (PF_READ | PF_WRITE)); 871} 872 873 874inline bool 875Elf64_Phdr::IsExecutable() const 876{ 877 return (p_flags & PF_EXECUTE) != 0; 878} 879 880 881inline uint8 882Elf32_Sym::Bind() const 883{ 884 return ELF32_ST_BIND(st_info); 885} 886 887 888inline uint8 889Elf32_Sym::Type() const 890{ 891 return ELF32_ST_TYPE(st_info); 892} 893 894 895inline void 896Elf32_Sym::SetInfo(uint8 bind, uint8 type) 897{ 898 st_info = ELF32_ST_INFO(bind, type); 899} 900 901 902inline uint8 903Elf64_Sym::Bind() const 904{ 905 return ELF64_ST_BIND(st_info); 906} 907 908 909inline uint8 910Elf64_Sym::Type() const 911{ 912 return ELF64_ST_TYPE(st_info); 913} 914 915 916inline void 917Elf64_Sym::SetInfo(uint8 bind, uint8 type) 918{ 919 st_info = ELF64_ST_INFO(bind, type); 920} 921 922 923inline uint8 924Elf32_Rel::SymbolIndex() const 925{ 926 return ELF32_R_SYM(r_info); 927} 928 929 930inline uint8 931Elf32_Rel::Type() const 932{ 933 return ELF32_R_TYPE(r_info); 934} 935 936 937inline uint8 938Elf64_Rel::SymbolIndex() const 939{ 940 return ELF64_R_SYM(r_info); 941} 942 943 944inline uint8 945Elf64_Rel::Type() const 946{ 947 return ELF64_R_TYPE(r_info); 948} 949 950#endif /* __cplusplus */ 951 952 953#endif /* _ELF_H */ 954