1 /* SPDX-License-Identifier: BSD-2-Clause 2 * 3 * Copyright (c) 1996-1998 John D. Polstra. All rights reserved. 4 * Copyright (c) 2001 David E. O'Brien 5 * Portions Copyright 2009 The Go Authors. All rights reserved. 6 */ 7 8 /* 9 * ELF definitions that are independent of architecture or word size. 10 */ 11 12 /* 13 * Note header. The ".note" section contains an array of notes. Each 14 * begins with this header, aligned to a word boundary. Immediately 15 * following the note header is n_namesz bytes of name, padded to the 16 * next word boundary. Then comes n_descsz bytes of descriptor, again 17 * padded to a word boundary. The values of n_namesz and n_descsz do 18 * not include the padding. 19 */ 20 21 #ifndef __INCLUDE_ELF_DEFS_H__ 22 #define __INCLUDE_ELF_DEFS_H__ 23 24 #include <stdbool.h> 25 #include <stdint.h> 26 27 typedef uint64_t uint64; 28 typedef uint32_t uint32; 29 typedef uint16_t uint16; 30 typedef uint8_t uint8; 31 32 typedef int64_t int64; 33 typedef int32_t int32; 34 typedef int16_t int16; 35 typedef int8_t int8; 36 37 typedef struct { 38 uint32 n_namesz; /* Length of name. */ 39 uint32 n_descsz; /* Length of descriptor. */ 40 uint32 n_type; /* Type of this note. */ 41 } Elf_Note; 42 43 /* Indexes into the e_ident array. Keep synced with 44 http://www.sco.com/developer/gabi/ch4.eheader.html */ 45 #define EI_MAG0 0 /* Magic number, byte 0. */ 46 #define EI_MAG1 1 /* Magic number, byte 1. */ 47 #define EI_MAG2 2 /* Magic number, byte 2. */ 48 #define EI_MAG3 3 /* Magic number, byte 3. */ 49 #define EI_CLASS 4 /* Class of machine. */ 50 #define EI_DATA 5 /* Data format. */ 51 #define EI_VERSION 6 /* ELF format version. */ 52 #define EI_OSABI 7 /* Operating system / ABI identification */ 53 #define EI_ABIVERSION 8 /* ABI version */ 54 #define OLD_EI_BRAND 8 /* Start of architecture identification. */ 55 #define EI_PAD 9 /* Start of padding (per SVR4 ABI). */ 56 #define EI_NIDENT 16 /* Size of e_ident array. */ 57 58 /* Values for the magic number bytes. */ 59 #define ELFMAG0 0x7f 60 #define ELFMAG1 'E' 61 #define ELFMAG2 'L' 62 #define ELFMAG3 'F' 63 #define ELFMAG "\177ELF" /* magic string */ 64 #define SELFMAG 4 /* magic string size */ 65 66 /* Values for e_ident[EI_VERSION] and e_version. */ 67 #define EV_NONE 0 68 #define EV_CURRENT 1 69 70 /* Values for e_ident[EI_CLASS]. */ 71 #define ELFCLASSNONE 0 /* Unknown class. */ 72 #define ELFCLASS32 1 /* 32-bit architecture. */ 73 #define ELFCLASS64 2 /* 64-bit architecture. */ 74 75 /* Values for e_ident[EI_DATA]. */ 76 #define ELFDATANONE 0 /* Unknown data format. */ 77 #define ELFDATA2LSB 1 /* 2's complement little-endian. */ 78 #define ELFDATA2MSB 2 /* 2's complement big-endian. */ 79 80 /* Values for e_ident[EI_OSABI]. */ 81 #define ELFOSABI_NONE 0 /* UNIX System V ABI */ 82 #define ELFOSABI_HPUX 1 /* HP-UX operating system */ 83 #define ELFOSABI_NETBSD 2 /* NetBSD */ 84 #define ELFOSABI_LINUX 3 /* GNU/Linux */ 85 #define ELFOSABI_HURD 4 /* GNU/Hurd */ 86 #define ELFOSABI_86OPEN 5 /* 86Open common IA32 ABI */ 87 #define ELFOSABI_SOLARIS 6 /* Solaris */ 88 #define ELFOSABI_AIX 7 /* AIX */ 89 #define ELFOSABI_IRIX 8 /* IRIX */ 90 #define ELFOSABI_FREEBSD 9 /* FreeBSD */ 91 #define ELFOSABI_TRU64 10 /* TRU64 UNIX */ 92 #define ELFOSABI_MODESTO 11 /* Novell Modesto */ 93 #define ELFOSABI_OPENBSD 12 /* OpenBSD */ 94 #define ELFOSABI_OPENVMS 13 /* Open VMS */ 95 #define ELFOSABI_NSK 14 /* HP Non-Stop Kernel */ 96 #define ELFOSABI_ARM 97 /* ARM */ 97 #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ 98 99 #define ELFOSABI_SYSV ELFOSABI_NONE /* symbol used in old spec */ 100 #define ELFOSABI_MONTEREY ELFOSABI_AIX /* Monterey */ 101 102 /* e_ident */ 103 #define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \ 104 (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \ 105 (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \ 106 (ehdr).e_ident[EI_MAG3] == ELFMAG3) 107 108 /* Values for e_type. */ 109 #define ET_NONE 0 /* Unknown type. */ 110 #define ET_REL 1 /* Relocatable. */ 111 #define ET_EXEC 2 /* Executable. */ 112 #define ET_DYN 3 /* Shared object. */ 113 #define ET_CORE 4 /* Core file. */ 114 #define ET_LOOS 0xfe00 /* First operating system specific. */ 115 #define ET_HIOS 0xfeff /* Last operating system-specific. */ 116 #define ET_LOPROC 0xff00 /* First processor-specific. */ 117 #define ET_HIPROC 0xffff /* Last processor-specific. */ 118 119 /* Values for e_machine. */ 120 #define EM_NONE 0 /* Unknown machine. */ 121 #define EM_M32 1 /* AT&T WE32100. */ 122 #define EM_SPARC 2 /* Sun SPARC. */ 123 #define EM_386 3 /* Intel i386. */ 124 #define EM_68K 4 /* Motorola 68000. */ 125 #define EM_88K 5 /* Motorola 88000. */ 126 #define EM_860 7 /* Intel i860. */ 127 #define EM_MIPS 8 /* MIPS R3000 Big-Endian only. */ 128 #define EM_S370 9 /* IBM System/370. */ 129 #define EM_MIPS_RS3_LE 10 /* MIPS R3000 Little-Endian. */ 130 #define EM_PARISC 15 /* HP PA-RISC. */ 131 #define EM_VPP500 17 /* Fujitsu VPP500. */ 132 #define EM_SPARC32PLUS 18 /* SPARC v8plus. */ 133 #define EM_960 19 /* Intel 80960. */ 134 #define EM_PPC 20 /* PowerPC 32-bit. */ 135 #define EM_PPC64 21 /* PowerPC 64-bit. */ 136 #define EM_S390 22 /* IBM System/390. */ 137 #define EM_V800 36 /* NEC V800. */ 138 #define EM_FR20 37 /* Fujitsu FR20. */ 139 #define EM_RH32 38 /* TRW RH-32. */ 140 #define EM_RCE 39 /* Motorola RCE. */ 141 #define EM_ARM 40 /* ARM. */ 142 #define EM_SH 42 /* Hitachi SH. */ 143 #define EM_SPARCV9 43 /* SPARC v9 64-bit. */ 144 #define EM_TRICORE 44 /* Siemens TriCore embedded processor. */ 145 #define EM_ARC 45 /* Argonaut RISC Core. */ 146 #define EM_H8_300 46 /* Hitachi H8/300. */ 147 #define EM_H8_300H 47 /* Hitachi H8/300H. */ 148 #define EM_H8S 48 /* Hitachi H8S. */ 149 #define EM_H8_500 49 /* Hitachi H8/500. */ 150 #define EM_IA_64 50 /* Intel IA-64 Processor. */ 151 #define EM_MIPS_X 51 /* Stanford MIPS-X. */ 152 #define EM_COLDFIRE 52 /* Motorola ColdFire. */ 153 #define EM_68HC12 53 /* Motorola M68HC12. */ 154 #define EM_MMA 54 /* Fujitsu MMA. */ 155 #define EM_PCP 55 /* Siemens PCP. */ 156 #define EM_NCPU 56 /* Sony nCPU. */ 157 #define EM_NDR1 57 /* Denso NDR1 microprocessor. */ 158 #define EM_STARCORE 58 /* Motorola Star*Core processor. */ 159 #define EM_ME16 59 /* Toyota ME16 processor. */ 160 #define EM_ST100 60 /* STMicroelectronics ST100 processor. */ 161 #define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ processor. */ 162 #define EM_X86_64 62 /* Advanced Micro Devices x86-64 */ 163 164 /* Non-standard or deprecated. */ 165 #define EM_486 6 /* Intel i486. */ 166 #define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */ 167 #define EM_ALPHA_STD 41 /* Digital Alpha (standard value). */ 168 #define EM_ALPHA 0x9026 /* Alpha (written in the absence of an ABI) */ 169 170 /* Special section indexes. */ 171 #define SHN_UNDEF 0 /* Undefined, missing, irrelevant. */ 172 #define SHN_LORESERVE 0xff00 /* First of reserved range. */ 173 #define SHN_LOPROC 0xff00 /* First processor-specific. */ 174 #define SHN_HIPROC 0xff1f /* Last processor-specific. */ 175 #define SHN_LOOS 0xff20 /* First operating system-specific. */ 176 #define SHN_HIOS 0xff3f /* Last operating system-specific. */ 177 #define SHN_ABS 0xfff1 /* Absolute values. */ 178 #define SHN_COMMON 0xfff2 /* Common data. */ 179 #define SHN_XINDEX 0xffff /* Escape -- index stored elsewhere. */ 180 #define SHN_HIRESERVE 0xffff /* Last of reserved range. */ 181 182 /* sh_type */ 183 #define SHT_NULL 0 /* inactive */ 184 #define SHT_PROGBITS 1 /* program defined information */ 185 #define SHT_SYMTAB 2 /* symbol table section */ 186 #define SHT_STRTAB 3 /* string table section */ 187 #define SHT_RELA 4 /* relocation section with addends */ 188 #define SHT_HASH 5 /* symbol hash table section */ 189 #define SHT_DYNAMIC 6 /* dynamic section */ 190 #define SHT_NOTE 7 /* note section */ 191 #define SHT_NOBITS 8 /* no space section */ 192 #define SHT_REL 9 /* relocation section - no addends */ 193 #define SHT_SHLIB 10 /* reserved - purpose unknown */ 194 #define SHT_DYNSYM 11 /* dynamic symbol table section */ 195 #define SHT_INIT_ARRAY 14 /* Initialization function pointers. */ 196 #define SHT_FINI_ARRAY 15 /* Termination function pointers. */ 197 #define SHT_PREINIT_ARRAY 16 /* Pre-initialization function ptrs. */ 198 #define SHT_GROUP 17 /* Section group. */ 199 #define SHT_SYMTAB_SHNDX 18 /* Section indexes (see SHN_XINDEX). */ 200 #define SHT_LOOS 0x60000000 /* First of OS specific semantics */ 201 #define SHT_HIOS 0x6fffffff /* Last of OS specific semantics */ 202 #define SHT_GNU_VERDEF 0x6ffffffd 203 #define SHT_GNU_VERNEED 0x6ffffffe 204 #define SHT_GNU_VERSYM 0x6fffffff 205 #define SHT_LOPROC 0x70000000 /* reserved range for processor */ 206 #define SHT_HIPROC 0x7fffffff /* specific section header types */ 207 #define SHT_LOUSER 0x80000000 /* reserved range for application */ 208 #define SHT_HIUSER 0xffffffff /* specific indexes */ 209 210 /* Flags for sh_flags. */ 211 #define SHF_WRITE 0x1 /* Section contains writable data. */ 212 #define SHF_ALLOC 0x2 /* Section occupies memory. */ 213 #define SHF_EXECINSTR 0x4 /* Section contains instructions. */ 214 #define SHF_MERGE 0x10 /* Section may be merged. */ 215 #define SHF_STRINGS 0x20 /* Section contains strings. */ 216 #define SHF_INFO_LINK 0x40 /* sh_info holds section index. */ 217 #define SHF_LINK_ORDER 0x80 /* Special ordering requirements. */ 218 #define SHF_OS_NONCONFORMING 0x100 /* OS-specific processing required. */ 219 #define SHF_GROUP 0x200 /* Member of section group. */ 220 #define SHF_TLS 0x400 /* Section contains TLS data. */ 221 #define SHF_MASKOS 0x0ff00000 /* OS-specific semantics. */ 222 #define SHF_MASKPROC 0xf0000000 /* Processor-specific semantics. */ 223 224 /* Values for p_type. */ 225 #define PT_NULL 0 /* Unused entry. */ 226 #define PT_LOAD 1 /* Loadable segment. */ 227 #define PT_DYNAMIC 2 /* Dynamic linking information segment. */ 228 #define PT_INTERP 3 /* Pathname of interpreter. */ 229 #define PT_NOTE 4 /* Auxiliary information. */ 230 #define PT_SHLIB 5 /* Reserved (not used). */ 231 #define PT_PHDR 6 /* Location of program header itself. */ 232 #define PT_TLS 7 /* Thread local storage segment */ 233 #define PT_LOOS 0x60000000 /* First OS-specific. */ 234 #define PT_HIOS 0x6fffffff /* Last OS-specific. */ 235 #define PT_LOPROC 0x70000000 /* First processor-specific type. */ 236 #define PT_HIPROC 0x7fffffff /* Last processor-specific type. */ 237 #define PT_GNU_STACK 0x6474e551 238 #define PT_PAX_FLAGS 0x65041580 239 240 /* Values for p_flags. */ 241 #define PF_X 0x1 /* Executable. */ 242 #define PF_W 0x2 /* Writable. */ 243 #define PF_R 0x4 /* Readable. */ 244 #define PF_MASKOS 0x0ff00000 /* Operating system-specific. */ 245 #define PF_MASKPROC 0xf0000000 /* Processor-specific. */ 246 247 /* Values for d_tag. */ 248 #define DT_NULL 0 /* Terminating entry. */ 249 /* String table offset of a needed shared library. */ 250 #define DT_NEEDED 1 251 #define DT_PLTRELSZ 2 /* Total size in bytes of PLT relocations. */ 252 #define DT_PLTGOT 3 /* Processor-dependent address. */ 253 #define DT_HASH 4 /* Address of symbol hash table. */ 254 #define DT_STRTAB 5 /* Address of string table. */ 255 #define DT_SYMTAB 6 /* Address of symbol table. */ 256 #define DT_RELA 7 /* Address of ElfNN_Rela relocations. */ 257 #define DT_RELASZ 8 /* Total size of ElfNN_Rela relocations. */ 258 #define DT_RELAENT 9 /* Size of each ElfNN_Rela relocation entry. */ 259 #define DT_STRSZ 10 /* Size of string table. */ 260 #define DT_SYMENT 11 /* Size of each symbol table entry. */ 261 #define DT_INIT 12 /* Address of initialization function. */ 262 #define DT_FINI 13 /* Address of finalization function. */ 263 /* String table offset of shared object name. */ 264 #define DT_SONAME 14 265 #define DT_RPATH 15 /* String table offset of library path. [sup] */ 266 #define DT_SYMBOLIC 16 /* Indicates "symbolic" linking. [sup] */ 267 #define DT_REL 17 /* Address of ElfNN_Rel relocations. */ 268 #define DT_RELSZ 18 /* Total size of ElfNN_Rel relocations. */ 269 #define DT_RELENT 19 /* Size of each ElfNN_Rel relocation. */ 270 #define DT_PLTREL 20 /* Type of relocation used for PLT. */ 271 #define DT_DEBUG 21 /* Reserved (not used). */ 272 /* Indicates there may be relocations in non-writable segments. [sup] */ 273 #define DT_TEXTREL 22 274 #define DT_JMPREL 23 /* Address of PLT relocations. */ 275 #define DT_BIND_NOW 24 /* [sup] */ 276 /* Address of the array of pointers to initialization functions */ 277 #define DT_INIT_ARRAY 25 278 /* Address of the array of pointers to termination functions */ 279 #define DT_FINI_ARRAY 26 280 /* Size in bytes of the array of initialization functions. */ 281 #define DT_INIT_ARRAYSZ 27 282 /* Size in bytes of the array of terminationfunctions. */ 283 #define DT_FINI_ARRAYSZ 28 284 /* String table offset of a null-terminated library search path string. */ 285 #define DT_RUNPATH 29 286 #define DT_FLAGS 30 /* Object specific flag values. */ 287 /* Values greater than or equal to DT_ENCODING and less than 288 DT_LOOS follow the rules for the interpretation of the d_un 289 union as follows: even == 'd_ptr', even == 'd_val' or none */ 290 #define DT_ENCODING 32 291 /* Address of the array of pointers to pre-initialization functions. */ 292 #define DT_PREINIT_ARRAY 32 293 /* Size in bytes of the array of pre-initialization functions. */ 294 #define DT_PREINIT_ARRAYSZ 33 295 #define DT_LOOS 0x6000000d /* First OS-specific */ 296 #define DT_HIOS 0x6ffff000 /* Last OS-specific */ 297 #define DT_LOPROC 0x70000000 /* First processor-specific type. */ 298 #define DT_HIPROC 0x7fffffff /* Last processor-specific type. */ 299 300 #define DT_VERNEED 0x6ffffffe 301 #define DT_VERNEEDNUM 0x6fffffff 302 #define DT_VERSYM 0x6ffffff0 303 304 /* Values for DT_FLAGS */ 305 /* Indicates that the object being loaded may make reference to 306 the $ORIGIN substitution string */ 307 #define DF_ORIGIN 0x0001 308 #define DF_SYMBOLIC 0x0002 /* Indicates "symbolic" linking. */ 309 /* Indicates there may be relocations in non-writable segments. */ 310 #define DF_TEXTREL 0x0004 311 /* Indicates that the dynamic linker should process all 312 relocations for the object containing this entry before 313 transferring control to the program. */ 314 #define DF_BIND_NOW 0x0008 315 /* Indicates that the shared object or executable contains code 316 using a static thread-local storage scheme. */ 317 #define DF_STATIC_TLS 0x0010 318 319 /* Values for n_type. Used in core files. */ 320 #define NT_PRSTATUS 1 /* Process status. */ 321 #define NT_FPREGSET 2 /* Floating point registers. */ 322 #define NT_PRPSINFO 3 /* Process state info. */ 323 324 /* Symbol Binding - ELFNN_ST_BIND - st_info */ 325 #define STB_LOCAL 0 /* Local symbol */ 326 #define STB_GLOBAL 1 /* Global symbol */ 327 #define STB_WEAK 2 /* like global - lower precedence */ 328 #define STB_LOOS 10 /* Reserved range for operating system */ 329 #define STB_HIOS 12 /* specific semantics. */ 330 #define STB_LOPROC 13 /* reserved range for processor */ 331 #define STB_HIPROC 15 /* specific semantics. */ 332 333 /* Symbol type - ELFNN_ST_TYPE - st_info */ 334 #define STT_NOTYPE 0 /* Unspecified type. */ 335 #define STT_OBJECT 1 /* Data object. */ 336 #define STT_FUNC 2 /* Function. */ 337 #define STT_SECTION 3 /* Section. */ 338 #define STT_FILE 4 /* Source file. */ 339 #define STT_COMMON 5 /* Uninitialized common block. */ 340 #define STT_TLS 6 /* TLS object. */ 341 #define STT_LOOS 10 /* Reserved range for operating system */ 342 #define STT_HIOS 12 /* specific semantics. */ 343 #define STT_LOPROC 13 /* reserved range for processor */ 344 #define STT_HIPROC 15 /* specific semantics. */ 345 346 /* Symbol visibility - ELFNN_ST_VISIBILITY - st_other */ 347 #define STV_DEFAULT 0x0 /* Default visibility (see binding). */ 348 #define STV_INTERNAL 0x1 /* Special meaning in relocatable objects. */ 349 #define STV_HIDDEN 0x2 /* Not visible. */ 350 #define STV_PROTECTED 0x3 /* Visible but not preemptible. */ 351 352 /* Special symbol table indexes. */ 353 #define STN_UNDEF 0 /* Undefined symbol index. */ 354 355 /* 356 * ELF definitions common to all 32-bit architectures. 357 */ 358 359 typedef uint32 Elf32_Addr; 360 typedef uint16 Elf32_Half; 361 typedef uint32 Elf32_Off; 362 typedef int32 Elf32_Sword; 363 typedef uint32 Elf32_Word; 364 365 typedef Elf32_Word Elf32_Hashelt; 366 367 /* Non-standard class-dependent datatype used for abstraction. */ 368 typedef Elf32_Word Elf32_Size; 369 typedef Elf32_Sword Elf32_Ssize; 370 371 /* 372 * ELF header. 373 */ 374 375 typedef struct { 376 unsigned char ident[EI_NIDENT]; /* File identification. */ 377 Elf32_Half type; /* File type. */ 378 Elf32_Half machine; /* Machine architecture. */ 379 Elf32_Word version; /* ELF format version. */ 380 Elf32_Addr entry; /* Entry point. */ 381 Elf32_Off phoff; /* Program header file offset. */ 382 Elf32_Off shoff; /* Section header file offset. */ 383 Elf32_Word flags; /* Architecture-specific flags. */ 384 Elf32_Half ehsize; /* Size of ELF header in bytes. */ 385 Elf32_Half phentsize; /* Size of program header entry. */ 386 Elf32_Half phnum; /* Number of program header entries. */ 387 Elf32_Half shentsize; /* Size of section header entry. */ 388 Elf32_Half shnum; /* Number of section header entries. */ 389 Elf32_Half shstrndx; /* Section name strings section. */ 390 } Elf32_Ehdr; 391 392 /* 393 * Section header. 394 */ 395 396 typedef struct { 397 Elf32_Word name; /* Section name (index into the 398 section header string table). */ 399 Elf32_Word type; /* Section type. */ 400 Elf32_Word flags; /* Section flags. */ 401 Elf32_Addr vaddr; /* Address in memory image. */ 402 Elf32_Off off; /* Offset in file. */ 403 Elf32_Word size; /* Size in bytes. */ 404 Elf32_Word link; /* Index of a related section. */ 405 Elf32_Word info; /* Depends on section type. */ 406 Elf32_Word addralign; /* Alignment in bytes. */ 407 Elf32_Word entsize; /* Size of each entry in section. */ 408 } Elf32_Shdr; 409 410 /* 411 * Program header. 412 */ 413 414 typedef struct { 415 Elf32_Word type; /* Entry type. */ 416 Elf32_Off off; /* File offset of contents. */ 417 Elf32_Addr vaddr; /* Virtual address in memory image. */ 418 Elf32_Addr paddr; /* Physical address (not used). */ 419 Elf32_Word filesz; /* Size of contents in file. */ 420 Elf32_Word memsz; /* Size of contents in memory. */ 421 Elf32_Word flags; /* Access permission flags. */ 422 Elf32_Word align; /* Alignment in memory and file. */ 423 } Elf32_Phdr; 424 425 /* 426 * Dynamic structure. The ".dynamic" section contains an array of them. 427 */ 428 429 typedef struct { 430 Elf32_Sword d_tag; /* Entry type. */ 431 union { 432 Elf32_Word d_val; /* Integer value. */ 433 Elf32_Addr d_ptr; /* Address value. */ 434 } d_un; 435 } Elf32_Dyn; 436 437 /* 438 * Relocation entries. 439 */ 440 441 /* Relocations that don't need an addend field. */ 442 typedef struct { 443 Elf32_Addr off; /* Location to be relocated. */ 444 Elf32_Word info; /* Relocation type and symbol index. */ 445 } Elf32_Rel; 446 447 /* Relocations that need an addend field. */ 448 typedef struct { 449 Elf32_Addr off; /* Location to be relocated. */ 450 Elf32_Word info; /* Relocation type and symbol index. */ 451 Elf32_Sword addend; /* Addend. */ 452 } Elf32_Rela; 453 454 /* Macros for accessing the fields of r_info. */ 455 #define ELF32_R_SYM(info) ((info) >> 8) 456 #define ELF32_R_TYPE(info) ((unsigned char)(info)) 457 458 /* Macro for constructing r_info from field values. */ 459 #define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type)) 460 461 /* 462 * Relocation types. 463 */ 464 465 #define R_X86_64_NONE 0 /* No relocation. */ 466 #define R_X86_64_64 1 /* Add 64 bit symbol value. */ 467 #define R_X86_64_PC32 2 /* PC-relative 32 bit signed sym value. */ 468 #define R_X86_64_GOT32 3 /* PC-relative 32 bit GOT offset. */ 469 #define R_X86_64_PLT32 4 /* PC-relative 32 bit PLT offset. */ 470 #define R_X86_64_COPY 5 /* Copy data from shared object. */ 471 #define R_X86_64_GLOB_DAT 6 /* Set GOT entry to data address. */ 472 #define R_X86_64_JMP_SLOT 7 /* Set GOT entry to code address. */ 473 #define R_X86_64_RELATIVE 8 /* Add load address of shared object. */ 474 #define R_X86_64_GOTPCREL 9 /* Add 32 bit signed pcrel offset to GOT. */ 475 #define R_X86_64_32 10 /* Add 32 bit zero extended symbol value */ 476 #define R_X86_64_32S 11 /* Add 32 bit sign extended symbol value */ 477 #define R_X86_64_16 12 /* Add 16 bit zero extended symbol value */ 478 #define R_X86_64_PC16 13 /* Add 16 bit signed extended pc relative symbol value */ 479 #define R_X86_64_8 14 /* Add 8 bit zero extended symbol value */ 480 #define R_X86_64_PC8 15 /* Add 8 bit signed extended pc relative symbol value */ 481 #define R_X86_64_DTPMOD64 16 /* ID of module containing symbol */ 482 #define R_X86_64_DTPOFF64 17 /* Offset in TLS block */ 483 #define R_X86_64_TPOFF64 18 /* Offset in static TLS block */ 484 #define R_X86_64_TLSGD 19 /* PC relative offset to GD GOT entry */ 485 #define R_X86_64_TLSLD 20 /* PC relative offset to LD GOT entry */ 486 #define R_X86_64_DTPOFF32 21 /* Offset in TLS block */ 487 #define R_X86_64_GOTTPOFF 22 /* PC relative offset to IE GOT entry */ 488 #define R_X86_64_TPOFF32 23 /* Offset in static TLS block */ 489 490 #define R_X86_64_COUNT 24 /* Count of defined relocation types. */ 491 492 #define R_ALPHA_NONE 0 /* No reloc */ 493 #define R_ALPHA_REFLONG 1 /* Direct 32 bit */ 494 #define R_ALPHA_REFQUAD 2 /* Direct 64 bit */ 495 #define R_ALPHA_GPREL32 3 /* GP relative 32 bit */ 496 #define R_ALPHA_LITERAL 4 /* GP relative 16 bit w/optimization */ 497 #define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */ 498 #define R_ALPHA_GPDISP 6 /* Add displacement to GP */ 499 #define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */ 500 #define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */ 501 #define R_ALPHA_SREL16 9 /* PC relative 16 bit */ 502 #define R_ALPHA_SREL32 10 /* PC relative 32 bit */ 503 #define R_ALPHA_SREL64 11 /* PC relative 64 bit */ 504 #define R_ALPHA_OP_PUSH 12 /* OP stack push */ 505 #define R_ALPHA_OP_STORE 13 /* OP stack pop and store */ 506 #define R_ALPHA_OP_PSUB 14 /* OP stack subtract */ 507 #define R_ALPHA_OP_PRSHIFT 15 /* OP stack right shift */ 508 #define R_ALPHA_GPVALUE 16 509 #define R_ALPHA_GPRELHIGH 17 510 #define R_ALPHA_GPRELLOW 18 511 #define R_ALPHA_IMMED_GP_16 19 512 #define R_ALPHA_IMMED_GP_HI32 20 513 #define R_ALPHA_IMMED_SCN_HI32 21 514 #define R_ALPHA_IMMED_BR_HI32 22 515 #define R_ALPHA_IMMED_LO32 23 516 #define R_ALPHA_COPY 24 /* Copy symbol at runtime */ 517 #define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */ 518 #define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */ 519 #define R_ALPHA_RELATIVE 27 /* Adjust by program base */ 520 521 #define R_ALPHA_COUNT 28 522 523 #define R_ARM_NONE 0 /* No relocation. */ 524 #define R_ARM_PC24 1 525 #define R_ARM_ABS32 2 526 #define R_ARM_REL32 3 527 #define R_ARM_PC13 4 528 #define R_ARM_ABS16 5 529 #define R_ARM_ABS12 6 530 #define R_ARM_THM_ABS5 7 531 #define R_ARM_ABS8 8 532 #define R_ARM_SBREL32 9 533 #define R_ARM_THM_PC22 10 534 #define R_ARM_THM_PC8 11 535 #define R_ARM_AMP_VCALL9 12 536 #define R_ARM_SWI24 13 537 #define R_ARM_THM_SWI8 14 538 #define R_ARM_XPC25 15 539 #define R_ARM_THM_XPC22 16 540 #define R_ARM_COPY 20 /* Copy data from shared object. */ 541 #define R_ARM_GLOB_DAT 21 /* Set GOT entry to data address. */ 542 #define R_ARM_JUMP_SLOT 22 /* Set GOT entry to code address. */ 543 #define R_ARM_RELATIVE 23 /* Add load address of shared object. */ 544 #define R_ARM_GOTOFF 24 /* Add GOT-relative symbol address. */ 545 #define R_ARM_GOTPC 25 /* Add PC-relative GOT table address. */ 546 #define R_ARM_GOT32 26 /* Add PC-relative GOT offset. */ 547 #define R_ARM_PLT32 27 /* Add PC-relative PLT offset. */ 548 #define R_ARM_CALL 28 549 #define R_ARM_JUMP24 29 550 #define R_ARM_V4BX 40 551 #define R_ARM_GOT_PREL 96 552 #define R_ARM_GNU_VTENTRY 100 553 #define R_ARM_GNU_VTINHERIT 101 554 #define R_ARM_TLS_IE32 107 555 #define R_ARM_TLS_LE32 108 556 #define R_ARM_RSBREL32 250 557 #define R_ARM_THM_RPC22 251 558 #define R_ARM_RREL32 252 559 #define R_ARM_RABS32 253 560 #define R_ARM_RPC24 254 561 #define R_ARM_RBASE 255 562 563 #define R_ARM_COUNT 38 /* Count of defined relocation types. */ 564 565 #define R_386_NONE 0 /* No relocation. */ 566 #define R_386_32 1 /* Add symbol value. */ 567 #define R_386_PC32 2 /* Add PC-relative symbol value. */ 568 #define R_386_GOT32 3 /* Add PC-relative GOT offset. */ 569 #define R_386_PLT32 4 /* Add PC-relative PLT offset. */ 570 #define R_386_COPY 5 /* Copy data from shared object. */ 571 #define R_386_GLOB_DAT 6 /* Set GOT entry to data address. */ 572 #define R_386_JMP_SLOT 7 /* Set GOT entry to code address. */ 573 #define R_386_RELATIVE 8 /* Add load address of shared object. */ 574 #define R_386_GOTOFF 9 /* Add GOT-relative symbol address. */ 575 #define R_386_GOTPC 10 /* Add PC-relative GOT table address. */ 576 #define R_386_TLS_TPOFF 14 /* Negative offset in static TLS block */ 577 #define R_386_TLS_IE 15 /* Absolute address of GOT for -ve static TLS */ 578 #define R_386_TLS_GOTIE 16 /* GOT entry for negative static TLS block */ 579 #define R_386_TLS_LE 17 /* Negative offset relative to static TLS */ 580 #define R_386_TLS_GD 18 /* 32 bit offset to GOT (index,off) pair */ 581 #define R_386_TLS_LDM 19 /* 32 bit offset to GOT (index,zero) pair */ 582 #define R_386_TLS_GD_32 24 /* 32 bit offset to GOT (index,off) pair */ 583 #define R_386_TLS_GD_PUSH 25 /* pushl instruction for Sun ABI GD sequence */ 584 #define R_386_TLS_GD_CALL 26 /* call instruction for Sun ABI GD sequence */ 585 #define R_386_TLS_GD_POP 27 /* popl instruction for Sun ABI GD sequence */ 586 #define R_386_TLS_LDM_32 28 /* 32 bit offset to GOT (index,zero) pair */ 587 #define R_386_TLS_LDM_PUSH 29 /* pushl instruction for Sun ABI LD sequence */ 588 #define R_386_TLS_LDM_CALL 30 /* call instruction for Sun ABI LD sequence */ 589 #define R_386_TLS_LDM_POP 31 /* popl instruction for Sun ABI LD sequence */ 590 #define R_386_TLS_LDO_32 32 /* 32 bit offset from start of TLS block */ 591 #define R_386_TLS_IE_32 33 /* 32 bit offset to GOT static TLS offset entry */ 592 #define R_386_TLS_LE_32 34 /* 32 bit offset within static TLS block */ 593 #define R_386_TLS_DTPMOD32 35 /* GOT entry containing TLS index */ 594 #define R_386_TLS_DTPOFF32 36 /* GOT entry containing TLS offset */ 595 #define R_386_TLS_TPOFF32 37 /* GOT entry of -ve static TLS offset */ 596 597 #define R_386_COUNT 38 /* Count of defined relocation types. */ 598 599 #define R_PPC_NONE 0 /* No relocation. */ 600 #define R_PPC_ADDR32 1 601 #define R_PPC_ADDR24 2 602 #define R_PPC_ADDR16 3 603 #define R_PPC_ADDR16_LO 4 604 #define R_PPC_ADDR16_HI 5 605 #define R_PPC_ADDR16_HA 6 606 #define R_PPC_ADDR14 7 607 #define R_PPC_ADDR14_BRTAKEN 8 608 #define R_PPC_ADDR14_BRNTAKEN 9 609 #define R_PPC_REL24 10 610 #define R_PPC_REL14 11 611 #define R_PPC_REL14_BRTAKEN 12 612 #define R_PPC_REL14_BRNTAKEN 13 613 #define R_PPC_GOT16 14 614 #define R_PPC_GOT16_LO 15 615 #define R_PPC_GOT16_HI 16 616 #define R_PPC_GOT16_HA 17 617 #define R_PPC_PLTREL24 18 618 #define R_PPC_COPY 19 619 #define R_PPC_GLOB_DAT 20 620 #define R_PPC_JMP_SLOT 21 621 #define R_PPC_RELATIVE 22 622 #define R_PPC_LOCAL24PC 23 623 #define R_PPC_UADDR32 24 624 #define R_PPC_UADDR16 25 625 #define R_PPC_REL32 26 626 #define R_PPC_PLT32 27 627 #define R_PPC_PLTREL32 28 628 #define R_PPC_PLT16_LO 29 629 #define R_PPC_PLT16_HI 30 630 #define R_PPC_PLT16_HA 31 631 #define R_PPC_SDAREL16 32 632 #define R_PPC_SECTOFF 33 633 #define R_PPC_SECTOFF_LO 34 634 #define R_PPC_SECTOFF_HI 35 635 #define R_PPC_SECTOFF_HA 36 636 637 #define R_PPC_COUNT 37 /* Count of defined relocation types. */ 638 639 #define R_PPC_TLS 67 640 #define R_PPC_DTPMOD32 68 641 #define R_PPC_TPREL16 69 642 #define R_PPC_TPREL16_LO 70 643 #define R_PPC_TPREL16_HI 71 644 #define R_PPC_TPREL16_HA 72 645 #define R_PPC_TPREL32 73 646 #define R_PPC_DTPREL16 74 647 #define R_PPC_DTPREL16_LO 75 648 #define R_PPC_DTPREL16_HI 76 649 #define R_PPC_DTPREL16_HA 77 650 #define R_PPC_DTPREL32 78 651 #define R_PPC_GOT_TLSGD16 79 652 #define R_PPC_GOT_TLSGD16_LO 80 653 #define R_PPC_GOT_TLSGD16_HI 81 654 #define R_PPC_GOT_TLSGD16_HA 82 655 #define R_PPC_GOT_TLSLD16 83 656 #define R_PPC_GOT_TLSLD16_LO 84 657 #define R_PPC_GOT_TLSLD16_HI 85 658 #define R_PPC_GOT_TLSLD16_HA 86 659 #define R_PPC_GOT_TPREL16 87 660 #define R_PPC_GOT_TPREL16_LO 88 661 #define R_PPC_GOT_TPREL16_HI 89 662 #define R_PPC_GOT_TPREL16_HA 90 663 664 #define R_PPC_EMB_NADDR32 101 665 #define R_PPC_EMB_NADDR16 102 666 #define R_PPC_EMB_NADDR16_LO 103 667 #define R_PPC_EMB_NADDR16_HI 104 668 #define R_PPC_EMB_NADDR16_HA 105 669 #define R_PPC_EMB_SDAI16 106 670 #define R_PPC_EMB_SDA2I16 107 671 #define R_PPC_EMB_SDA2REL 108 672 #define R_PPC_EMB_SDA21 109 673 #define R_PPC_EMB_MRKREF 110 674 #define R_PPC_EMB_RELSEC16 111 675 #define R_PPC_EMB_RELST_LO 112 676 #define R_PPC_EMB_RELST_HI 113 677 #define R_PPC_EMB_RELST_HA 114 678 #define R_PPC_EMB_BIT_FLD 115 679 #define R_PPC_EMB_RELSDA 116 680 681 /* Count of defined relocation types. */ 682 #define R_PPC_EMB_COUNT (R_PPC_EMB_RELSDA - R_PPC_EMB_NADDR32 + 1) 683 684 #define R_SPARC_NONE 0 685 #define R_SPARC_8 1 686 #define R_SPARC_16 2 687 #define R_SPARC_32 3 688 #define R_SPARC_DISP8 4 689 #define R_SPARC_DISP16 5 690 #define R_SPARC_DISP32 6 691 #define R_SPARC_WDISP30 7 692 #define R_SPARC_WDISP22 8 693 #define R_SPARC_HI22 9 694 #define R_SPARC_22 10 695 #define R_SPARC_13 11 696 #define R_SPARC_LO10 12 697 #define R_SPARC_GOT10 13 698 #define R_SPARC_GOT13 14 699 #define R_SPARC_GOT22 15 700 #define R_SPARC_PC10 16 701 #define R_SPARC_PC22 17 702 #define R_SPARC_WPLT30 18 703 #define R_SPARC_COPY 19 704 #define R_SPARC_GLOB_DAT 20 705 #define R_SPARC_JMP_SLOT 21 706 #define R_SPARC_RELATIVE 22 707 #define R_SPARC_UA32 23 708 #define R_SPARC_PLT32 24 709 #define R_SPARC_HIPLT22 25 710 #define R_SPARC_LOPLT10 26 711 #define R_SPARC_PCPLT32 27 712 #define R_SPARC_PCPLT22 28 713 #define R_SPARC_PCPLT10 29 714 #define R_SPARC_10 30 715 #define R_SPARC_11 31 716 #define R_SPARC_64 32 717 #define R_SPARC_OLO10 33 718 #define R_SPARC_HH22 34 719 #define R_SPARC_HM10 35 720 #define R_SPARC_LM22 36 721 #define R_SPARC_PC_HH22 37 722 #define R_SPARC_PC_HM10 38 723 #define R_SPARC_PC_LM22 39 724 #define R_SPARC_WDISP16 40 725 #define R_SPARC_WDISP19 41 726 #define R_SPARC_GLOB_JMP 42 727 #define R_SPARC_7 43 728 #define R_SPARC_5 44 729 #define R_SPARC_6 45 730 #define R_SPARC_DISP64 46 731 #define R_SPARC_PLT64 47 732 #define R_SPARC_HIX22 48 733 #define R_SPARC_LOX10 49 734 #define R_SPARC_H44 50 735 #define R_SPARC_M44 51 736 #define R_SPARC_L44 52 737 #define R_SPARC_REGISTER 53 738 #define R_SPARC_UA64 54 739 #define R_SPARC_UA16 55 740 741 /* 742 * Magic number for the elf trampoline, chosen wisely to be an immediate 743 * value. 744 */ 745 #define ARM_MAGIC_TRAMP_NUMBER 0x5c000003 746 747 /* 748 * Symbol table entries. 749 */ 750 751 typedef struct { 752 Elf32_Word name; /* String table index of name. */ 753 Elf32_Addr value; /* Symbol value. */ 754 Elf32_Word size; /* Size of associated object. */ 755 unsigned char info; /* Type and binding information. */ 756 unsigned char other; /* Reserved (not used). */ 757 Elf32_Half shndx; /* Section index of symbol. */ 758 } Elf32_Sym; 759 760 /* Macros for accessing the fields of st_info. */ 761 #define ELF32_ST_BIND(info) ((info) >> 4) 762 #define ELF32_ST_TYPE(info) ((info) & 0xf) 763 764 /* Macro for constructing st_info from field values. */ 765 #define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) 766 767 /* Macro for accessing the fields of st_other. */ 768 #define ELF32_ST_VISIBILITY(oth) ((oth) & 0x3) 769 770 /* 771 * ELF definitions common to all 64-bit architectures. 772 */ 773 774 typedef uint64 Elf64_Addr; 775 typedef uint16 Elf64_Half; 776 typedef uint64 Elf64_Off; 777 typedef int32 Elf64_Sword; 778 typedef int64 Elf64_Sxword; 779 typedef uint32 Elf64_Word; 780 typedef uint64 Elf64_Xword; 781 782 /* 783 * Types of dynamic symbol hash table bucket and chain elements. 784 * 785 * This is inconsistent among 64 bit architectures, so a machine dependent 786 * typedef is required. 787 */ 788 789 #ifdef __alpha__ 790 typedef Elf64_Off Elf64_Hashelt; 791 #else 792 typedef Elf64_Word Elf64_Hashelt; 793 #endif 794 795 /* Non-standard class-dependent datatype used for abstraction. */ 796 typedef Elf64_Xword Elf64_Size; 797 typedef Elf64_Sxword Elf64_Ssize; 798 799 /* 800 * ELF header. 801 */ 802 803 typedef struct { 804 unsigned char ident[EI_NIDENT]; /* File identification. */ 805 Elf64_Half type; /* File type. */ 806 Elf64_Half machine; /* Machine architecture. */ 807 Elf64_Word version; /* ELF format version. */ 808 Elf64_Addr entry; /* Entry point. */ 809 Elf64_Off phoff; /* Program header file offset. */ 810 Elf64_Off shoff; /* Section header file offset. */ 811 Elf64_Word flags; /* Architecture-specific flags. */ 812 Elf64_Half ehsize; /* Size of ELF header in bytes. */ 813 Elf64_Half phentsize; /* Size of program header entry. */ 814 Elf64_Half phnum; /* Number of program header entries. */ 815 Elf64_Half shentsize; /* Size of section header entry. */ 816 Elf64_Half shnum; /* Number of section header entries. */ 817 Elf64_Half shstrndx; /* Section name strings section. */ 818 } Elf64_Ehdr; 819 820 /* 821 * Section header. 822 */ 823 824 typedef struct Elf64_Shdr Elf64_Shdr; 825 struct Elf64_Shdr { 826 Elf64_Word name; /* Section name (index into the 827 section header string table). */ 828 Elf64_Word type; /* Section type. */ 829 Elf64_Xword flags; /* Section flags. */ 830 Elf64_Addr addr; /* Address in memory image. */ 831 Elf64_Off off; /* Offset in file. */ 832 Elf64_Xword size; /* Size in bytes. */ 833 Elf64_Word link; /* Index of a related section. */ 834 Elf64_Word info; /* Depends on section type. */ 835 Elf64_Xword addralign; /* Alignment in bytes. */ 836 Elf64_Xword entsize; /* Size of each entry in section. */ 837 }; 838 839 /* 840 * Program header. 841 */ 842 843 typedef struct { 844 Elf64_Word type; /* Entry type. */ 845 Elf64_Word flags; /* Access permission flags. */ 846 Elf64_Off off; /* File offset of contents. */ 847 Elf64_Addr vaddr; /* Virtual address in memory image. */ 848 Elf64_Addr paddr; /* Physical address (not used). */ 849 Elf64_Xword filesz; /* Size of contents in file. */ 850 Elf64_Xword memsz; /* Size of contents in memory. */ 851 Elf64_Xword align; /* Alignment in memory and file. */ 852 } Elf64_Phdr; 853 854 /* 855 * Dynamic structure. The ".dynamic" section contains an array of them. 856 */ 857 858 typedef struct { 859 Elf64_Sxword d_tag; /* Entry type. */ 860 union { 861 Elf64_Xword d_val; /* Integer value. */ 862 Elf64_Addr d_ptr; /* Address value. */ 863 } d_un; 864 } Elf64_Dyn; 865 866 /* 867 * Relocation entries. 868 */ 869 870 /* Relocations that don't need an addend field. */ 871 typedef struct { 872 Elf64_Addr off; /* Location to be relocated. */ 873 Elf64_Xword info; /* Relocation type and symbol index. */ 874 } Elf64_Rel; 875 876 /* Relocations that need an addend field. */ 877 typedef struct { 878 Elf64_Addr off; /* Location to be relocated. */ 879 Elf64_Xword info; /* Relocation type and symbol index. */ 880 Elf64_Sxword addend; /* Addend. */ 881 } Elf64_Rela; 882 883 /* Macros for accessing the fields of r_info. */ 884 #define ELF64_R_SYM(info) ((info) >> 32) 885 #define ELF64_R_TYPE(info) ((info) & 0xffffffffL) 886 887 /* Macro for constructing r_info from field values. */ 888 #define ELF64_R_INFO(sym, type) ((((uint64)(sym)) << 32) + (((uint64)(type)) & 0xffffffffULL)) 889 890 /* 891 * Symbol table entries. 892 */ 893 894 typedef struct { 895 Elf64_Word name; /* String table index of name. */ 896 unsigned char info; /* Type and binding information. */ 897 unsigned char other; /* Reserved (not used). */ 898 Elf64_Half shndx; /* Section index of symbol. */ 899 Elf64_Addr value; /* Symbol value. */ 900 Elf64_Xword size; /* Size of associated object. */ 901 } Elf64_Sym; 902 903 /* Macros for accessing the fields of st_info. */ 904 #define ELF64_ST_BIND(info) ((info) >> 4) 905 #define ELF64_ST_TYPE(info) ((info) & 0xf) 906 907 /* Macro for constructing st_info from field values. */ 908 #define ELF64_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) 909 910 /* Macro for accessing the fields of st_other. */ 911 #define ELF64_ST_VISIBILITY(oth) ((oth) & 0x3) 912 913 /* 914 * Go linker interface 915 */ 916 917 #define ELF64HDRSIZE 64 918 #define ELF64PHDRSIZE 56 919 #define ELF64SHDRSIZE 64 920 #define ELF64RELSIZE 16 921 #define ELF64RELASIZE 24 922 #define ELF64SYMSIZE sizeof(Elf64_Sym) 923 924 #define ELF32HDRSIZE sizeof(Elf32_Ehdr) 925 #define ELF32PHDRSIZE sizeof(Elf32_Phdr) 926 #define ELF32SHDRSIZE sizeof(Elf32_Shdr) 927 #define ELF32SYMSIZE sizeof(Elf32_Sym) 928 #define ELF32RELSIZE 8 929 930 #endif /* __INCLUDE_ELF_DEFS_H__ */ 931
