MachO.h revision 263508
1//===-- llvm/Support/MachO.h - The MachO file format ------------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file defines manifest constants for the MachO object file format. 11// 12//===----------------------------------------------------------------------===// 13 14#ifndef LLVM_SUPPORT_MACHO_H 15#define LLVM_SUPPORT_MACHO_H 16 17#include "llvm/Support/Compiler.h" 18#include "llvm/Support/DataTypes.h" 19#include "llvm/Support/Host.h" 20 21namespace llvm { 22 namespace MachO { 23 // Enums from <mach-o/loader.h> 24 enum LLVM_ENUM_INT_TYPE(uint32_t) { 25 // Constants for the "magic" field in llvm::MachO::mach_header and 26 // llvm::MachO::mach_header_64 27 MH_MAGIC = 0xFEEDFACEu, 28 MH_CIGAM = 0xCEFAEDFEu, 29 MH_MAGIC_64 = 0xFEEDFACFu, 30 MH_CIGAM_64 = 0xCFFAEDFEu, 31 FAT_MAGIC = 0xCAFEBABEu, 32 FAT_CIGAM = 0xBEBAFECAu 33 }; 34 35 enum HeaderFileType { 36 // Constants for the "filetype" field in llvm::MachO::mach_header and 37 // llvm::MachO::mach_header_64 38 MH_OBJECT = 0x1u, 39 MH_EXECUTE = 0x2u, 40 MH_FVMLIB = 0x3u, 41 MH_CORE = 0x4u, 42 MH_PRELOAD = 0x5u, 43 MH_DYLIB = 0x6u, 44 MH_DYLINKER = 0x7u, 45 MH_BUNDLE = 0x8u, 46 MH_DYLIB_STUB = 0x9u, 47 MH_DSYM = 0xAu, 48 MH_KEXT_BUNDLE = 0xBu 49 }; 50 51 enum { 52 // Constant bits for the "flags" field in llvm::MachO::mach_header and 53 // llvm::MachO::mach_header_64 54 MH_NOUNDEFS = 0x00000001u, 55 MH_INCRLINK = 0x00000002u, 56 MH_DYLDLINK = 0x00000004u, 57 MH_BINDATLOAD = 0x00000008u, 58 MH_PREBOUND = 0x00000010u, 59 MH_SPLIT_SEGS = 0x00000020u, 60 MH_LAZY_INIT = 0x00000040u, 61 MH_TWOLEVEL = 0x00000080u, 62 MH_FORCE_FLAT = 0x00000100u, 63 MH_NOMULTIDEFS = 0x00000200u, 64 MH_NOFIXPREBINDING = 0x00000400u, 65 MH_PREBINDABLE = 0x00000800u, 66 MH_ALLMODSBOUND = 0x00001000u, 67 MH_SUBSECTIONS_VIA_SYMBOLS = 0x00002000u, 68 MH_CANONICAL = 0x00004000u, 69 MH_WEAK_DEFINES = 0x00008000u, 70 MH_BINDS_TO_WEAK = 0x00010000u, 71 MH_ALLOW_STACK_EXECUTION = 0x00020000u, 72 MH_ROOT_SAFE = 0x00040000u, 73 MH_SETUID_SAFE = 0x00080000u, 74 MH_NO_REEXPORTED_DYLIBS = 0x00100000u, 75 MH_PIE = 0x00200000u, 76 MH_DEAD_STRIPPABLE_DYLIB = 0x00400000u 77 }; 78 79 enum LLVM_ENUM_INT_TYPE(uint32_t) { 80 // Flags for the "cmd" field in llvm::MachO::load_command 81 LC_REQ_DYLD = 0x80000000u 82 }; 83 84 enum LoadCommandType LLVM_ENUM_INT_TYPE(uint32_t) { 85 // Constants for the "cmd" field in llvm::MachO::load_command 86 LC_SEGMENT = 0x00000001u, 87 LC_SYMTAB = 0x00000002u, 88 LC_SYMSEG = 0x00000003u, 89 LC_THREAD = 0x00000004u, 90 LC_UNIXTHREAD = 0x00000005u, 91 LC_LOADFVMLIB = 0x00000006u, 92 LC_IDFVMLIB = 0x00000007u, 93 LC_IDENT = 0x00000008u, 94 LC_FVMFILE = 0x00000009u, 95 LC_PREPAGE = 0x0000000Au, 96 LC_DYSYMTAB = 0x0000000Bu, 97 LC_LOAD_DYLIB = 0x0000000Cu, 98 LC_ID_DYLIB = 0x0000000Du, 99 LC_LOAD_DYLINKER = 0x0000000Eu, 100 LC_ID_DYLINKER = 0x0000000Fu, 101 LC_PREBOUND_DYLIB = 0x00000010u, 102 LC_ROUTINES = 0x00000011u, 103 LC_SUB_FRAMEWORK = 0x00000012u, 104 LC_SUB_UMBRELLA = 0x00000013u, 105 LC_SUB_CLIENT = 0x00000014u, 106 LC_SUB_LIBRARY = 0x00000015u, 107 LC_TWOLEVEL_HINTS = 0x00000016u, 108 LC_PREBIND_CKSUM = 0x00000017u, 109 LC_LOAD_WEAK_DYLIB = 0x80000018u, 110 LC_SEGMENT_64 = 0x00000019u, 111 LC_ROUTINES_64 = 0x0000001Au, 112 LC_UUID = 0x0000001Bu, 113 LC_RPATH = 0x8000001Cu, 114 LC_CODE_SIGNATURE = 0x0000001Du, 115 LC_SEGMENT_SPLIT_INFO = 0x0000001Eu, 116 LC_REEXPORT_DYLIB = 0x8000001Fu, 117 LC_LAZY_LOAD_DYLIB = 0x00000020u, 118 LC_ENCRYPTION_INFO = 0x00000021u, 119 LC_DYLD_INFO = 0x00000022u, 120 LC_DYLD_INFO_ONLY = 0x80000022u, 121 LC_LOAD_UPWARD_DYLIB = 0x80000023u, 122 LC_VERSION_MIN_MACOSX = 0x00000024u, 123 LC_VERSION_MIN_IPHONEOS = 0x00000025u, 124 LC_FUNCTION_STARTS = 0x00000026u, 125 LC_DYLD_ENVIRONMENT = 0x00000027u, 126 LC_MAIN = 0x80000028u, 127 LC_DATA_IN_CODE = 0x00000029u, 128 LC_SOURCE_VERSION = 0x0000002Au, 129 LC_DYLIB_CODE_SIGN_DRS = 0x0000002Bu, 130 // 0x0000002Cu, 131 LC_LINKER_OPTIONS = 0x0000002Du 132 }; 133 134 enum LLVM_ENUM_INT_TYPE(uint32_t) { 135 // Constant bits for the "flags" field in llvm::MachO::segment_command 136 SG_HIGHVM = 0x1u, 137 SG_FVMLIB = 0x2u, 138 SG_NORELOC = 0x4u, 139 SG_PROTECTED_VERSION_1 = 0x8u, 140 141 142 // Constant masks for the "flags" field in llvm::MachO::section and 143 // llvm::MachO::section_64 144 SECTION_TYPE = 0x000000ffu, // SECTION_TYPE 145 SECTION_ATTRIBUTES = 0xffffff00u, // SECTION_ATTRIBUTES 146 SECTION_ATTRIBUTES_USR = 0xff000000u, // SECTION_ATTRIBUTES_USR 147 SECTION_ATTRIBUTES_SYS = 0x00ffff00u // SECTION_ATTRIBUTES_SYS 148 }; 149 150 enum SectionType { 151 // Constant masks for the "flags[7:0]" field in llvm::MachO::section and 152 // llvm::MachO::section_64 (mask "flags" with SECTION_TYPE) 153 S_REGULAR = 0x00u, 154 S_ZEROFILL = 0x01u, 155 S_CSTRING_LITERALS = 0x02u, 156 S_4BYTE_LITERALS = 0x03u, 157 S_8BYTE_LITERALS = 0x04u, 158 S_LITERAL_POINTERS = 0x05u, 159 S_NON_LAZY_SYMBOL_POINTERS = 0x06u, 160 S_LAZY_SYMBOL_POINTERS = 0x07u, 161 S_SYMBOL_STUBS = 0x08u, 162 S_MOD_INIT_FUNC_POINTERS = 0x09u, 163 S_MOD_TERM_FUNC_POINTERS = 0x0au, 164 S_COALESCED = 0x0bu, 165 S_GB_ZEROFILL = 0x0cu, 166 S_INTERPOSING = 0x0du, 167 S_16BYTE_LITERALS = 0x0eu, 168 S_DTRACE_DOF = 0x0fu, 169 S_LAZY_DYLIB_SYMBOL_POINTERS = 0x10u, 170 S_THREAD_LOCAL_REGULAR = 0x11u, 171 S_THREAD_LOCAL_ZEROFILL = 0x12u, 172 S_THREAD_LOCAL_VARIABLES = 0x13u, 173 S_THREAD_LOCAL_VARIABLE_POINTERS = 0x14u, 174 S_THREAD_LOCAL_INIT_FUNCTION_POINTERS = 0x15u 175 }; 176 177 enum LLVM_ENUM_INT_TYPE(uint32_t) { 178 // Constant masks for the "flags[31:24]" field in llvm::MachO::section and 179 // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_USR) 180 S_ATTR_PURE_INSTRUCTIONS = 0x80000000u, 181 S_ATTR_NO_TOC = 0x40000000u, 182 S_ATTR_STRIP_STATIC_SYMS = 0x20000000u, 183 S_ATTR_NO_DEAD_STRIP = 0x10000000u, 184 S_ATTR_LIVE_SUPPORT = 0x08000000u, 185 S_ATTR_SELF_MODIFYING_CODE = 0x04000000u, 186 S_ATTR_DEBUG = 0x02000000u, 187 188 // Constant masks for the "flags[23:8]" field in llvm::MachO::section and 189 // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_SYS) 190 S_ATTR_SOME_INSTRUCTIONS = 0x00000400u, 191 S_ATTR_EXT_RELOC = 0x00000200u, 192 S_ATTR_LOC_RELOC = 0x00000100u, 193 194 // Constant masks for the value of an indirect symbol in an indirect 195 // symbol table 196 INDIRECT_SYMBOL_LOCAL = 0x80000000u, 197 INDIRECT_SYMBOL_ABS = 0x40000000u 198 }; 199 200 enum DataRegionType { 201 // Constants for the "kind" field in a data_in_code_entry structure 202 DICE_KIND_DATA = 1u, 203 DICE_KIND_JUMP_TABLE8 = 2u, 204 DICE_KIND_JUMP_TABLE16 = 3u, 205 DICE_KIND_JUMP_TABLE32 = 4u, 206 DICE_KIND_ABS_JUMP_TABLE32 = 5u 207 }; 208 209 enum RebaseType { 210 REBASE_TYPE_POINTER = 1u, 211 REBASE_TYPE_TEXT_ABSOLUTE32 = 2u, 212 REBASE_TYPE_TEXT_PCREL32 = 3u 213 }; 214 215 enum { 216 REBASE_OPCODE_MASK = 0xF0u, 217 REBASE_IMMEDIATE_MASK = 0x0Fu 218 }; 219 220 enum RebaseOpcode { 221 REBASE_OPCODE_DONE = 0x00u, 222 REBASE_OPCODE_SET_TYPE_IMM = 0x10u, 223 REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB = 0x20u, 224 REBASE_OPCODE_ADD_ADDR_ULEB = 0x30u, 225 REBASE_OPCODE_ADD_ADDR_IMM_SCALED = 0x40u, 226 REBASE_OPCODE_DO_REBASE_IMM_TIMES = 0x50u, 227 REBASE_OPCODE_DO_REBASE_ULEB_TIMES = 0x60u, 228 REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB = 0x70u, 229 REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB = 0x80u 230 }; 231 232 enum BindType { 233 BIND_TYPE_POINTER = 1u, 234 BIND_TYPE_TEXT_ABSOLUTE32 = 2u, 235 BIND_TYPE_TEXT_PCREL32 = 3u 236 }; 237 238 enum BindSpecialDylib { 239 BIND_SPECIAL_DYLIB_SELF = 0, 240 BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE = -1, 241 BIND_SPECIAL_DYLIB_FLAT_LOOKUP = -2 242 }; 243 244 enum { 245 BIND_SYMBOL_FLAGS_WEAK_IMPORT = 0x1u, 246 BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION = 0x8u, 247 248 BIND_OPCODE_MASK = 0xF0u, 249 BIND_IMMEDIATE_MASK = 0x0Fu 250 }; 251 252 enum BindOpcode { 253 BIND_OPCODE_DONE = 0x00u, 254 BIND_OPCODE_SET_DYLIB_ORDINAL_IMM = 0x10u, 255 BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB = 0x20u, 256 BIND_OPCODE_SET_DYLIB_SPECIAL_IMM = 0x30u, 257 BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM = 0x40u, 258 BIND_OPCODE_SET_TYPE_IMM = 0x50u, 259 BIND_OPCODE_SET_ADDEND_SLEB = 0x60u, 260 BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB = 0x70u, 261 BIND_OPCODE_ADD_ADDR_ULEB = 0x80u, 262 BIND_OPCODE_DO_BIND = 0x90u, 263 BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB = 0xA0u, 264 BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED = 0xB0u, 265 BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB = 0xC0u 266 }; 267 268 enum { 269 EXPORT_SYMBOL_FLAGS_KIND_MASK = 0x03u, 270 EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION = 0x04u, 271 EXPORT_SYMBOL_FLAGS_REEXPORT = 0x08u, 272 EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER = 0x10u 273 }; 274 275 enum ExportSymbolKind { 276 EXPORT_SYMBOL_FLAGS_KIND_REGULAR = 0x00u, 277 EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL = 0x01u 278 }; 279 280 281 enum { 282 // Constant masks for the "n_type" field in llvm::MachO::nlist and 283 // llvm::MachO::nlist_64 284 N_STAB = 0xe0, 285 N_PEXT = 0x10, 286 N_TYPE = 0x0e, 287 N_EXT = 0x01 288 }; 289 290 enum NListType { 291 // Constants for the "n_type & N_TYPE" llvm::MachO::nlist and 292 // llvm::MachO::nlist_64 293 N_UNDF = 0x0u, 294 N_ABS = 0x2u, 295 N_SECT = 0xeu, 296 N_PBUD = 0xcu, 297 N_INDR = 0xau 298 }; 299 300 enum SectionOrdinal { 301 // Constants for the "n_sect" field in llvm::MachO::nlist and 302 // llvm::MachO::nlist_64 303 NO_SECT = 0u, 304 MAX_SECT = 0xffu 305 }; 306 307 enum { 308 // Constant masks for the "n_desc" field in llvm::MachO::nlist and 309 // llvm::MachO::nlist_64 310 N_ARM_THUMB_DEF = 0x0008u, 311 N_NO_DEAD_STRIP = 0x0020u, 312 N_WEAK_REF = 0x0040u, 313 N_WEAK_DEF = 0x0080u, 314 N_SYMBOL_RESOLVER = 0x0100u 315 }; 316 317 enum StabType { 318 // Constant values for the "n_type" field in llvm::MachO::nlist and 319 // llvm::MachO::nlist_64 when "(n_type & NlistMaskStab) != 0" 320 N_GSYM = 0x20u, 321 N_FNAME = 0x22u, 322 N_FUN = 0x24u, 323 N_STSYM = 0x26u, 324 N_LCSYM = 0x28u, 325 N_BNSYM = 0x2Eu, 326 N_OPT = 0x3Cu, 327 N_RSYM = 0x40u, 328 N_SLINE = 0x44u, 329 N_ENSYM = 0x4Eu, 330 N_SSYM = 0x60u, 331 N_SO = 0x64u, 332 N_OSO = 0x66u, 333 N_LSYM = 0x80u, 334 N_BINCL = 0x82u, 335 N_SOL = 0x84u, 336 N_PARAMS = 0x86u, 337 N_VERSION = 0x88u, 338 N_OLEVEL = 0x8Au, 339 N_PSYM = 0xA0u, 340 N_EINCL = 0xA2u, 341 N_ENTRY = 0xA4u, 342 N_LBRAC = 0xC0u, 343 N_EXCL = 0xC2u, 344 N_RBRAC = 0xE0u, 345 N_BCOMM = 0xE2u, 346 N_ECOMM = 0xE4u, 347 N_ECOML = 0xE8u, 348 N_LENG = 0xFEu 349 }; 350 351 enum LLVM_ENUM_INT_TYPE(uint32_t) { 352 // Constant values for the r_symbolnum field in an 353 // llvm::MachO::relocation_info structure when r_extern is 0. 354 R_ABS = 0, 355 356 // Constant bits for the r_address field in an 357 // llvm::MachO::relocation_info structure. 358 R_SCATTERED = 0x80000000 359 }; 360 361 enum RelocationInfoType { 362 // Constant values for the r_type field in an 363 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 364 // structure. 365 GENERIC_RELOC_VANILLA = 0, 366 GENERIC_RELOC_PAIR = 1, 367 GENERIC_RELOC_SECTDIFF = 2, 368 GENERIC_RELOC_PB_LA_PTR = 3, 369 GENERIC_RELOC_LOCAL_SECTDIFF = 4, 370 GENERIC_RELOC_TLV = 5, 371 372 // Constant values for the r_type field in a PowerPC architecture 373 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 374 // structure. 375 PPC_RELOC_VANILLA = GENERIC_RELOC_VANILLA, 376 PPC_RELOC_PAIR = GENERIC_RELOC_PAIR, 377 PPC_RELOC_BR14 = 2, 378 PPC_RELOC_BR24 = 3, 379 PPC_RELOC_HI16 = 4, 380 PPC_RELOC_LO16 = 5, 381 PPC_RELOC_HA16 = 6, 382 PPC_RELOC_LO14 = 7, 383 PPC_RELOC_SECTDIFF = 8, 384 PPC_RELOC_PB_LA_PTR = 9, 385 PPC_RELOC_HI16_SECTDIFF = 10, 386 PPC_RELOC_LO16_SECTDIFF = 11, 387 PPC_RELOC_HA16_SECTDIFF = 12, 388 PPC_RELOC_JBSR = 13, 389 PPC_RELOC_LO14_SECTDIFF = 14, 390 PPC_RELOC_LOCAL_SECTDIFF = 15, 391 392 // Constant values for the r_type field in an ARM architecture 393 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 394 // structure. 395 ARM_RELOC_VANILLA = GENERIC_RELOC_VANILLA, 396 ARM_RELOC_PAIR = GENERIC_RELOC_PAIR, 397 ARM_RELOC_SECTDIFF = GENERIC_RELOC_SECTDIFF, 398 ARM_RELOC_LOCAL_SECTDIFF = 3, 399 ARM_RELOC_PB_LA_PTR = 4, 400 ARM_RELOC_BR24 = 5, 401 ARM_THUMB_RELOC_BR22 = 6, 402 ARM_THUMB_32BIT_BRANCH = 7, // obsolete 403 ARM_RELOC_HALF = 8, 404 ARM_RELOC_HALF_SECTDIFF = 9, 405 406 // Constant values for the r_type field in an x86_64 architecture 407 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 408 // structure 409 X86_64_RELOC_UNSIGNED = 0, 410 X86_64_RELOC_SIGNED = 1, 411 X86_64_RELOC_BRANCH = 2, 412 X86_64_RELOC_GOT_LOAD = 3, 413 X86_64_RELOC_GOT = 4, 414 X86_64_RELOC_SUBTRACTOR = 5, 415 X86_64_RELOC_SIGNED_1 = 6, 416 X86_64_RELOC_SIGNED_2 = 7, 417 X86_64_RELOC_SIGNED_4 = 8, 418 X86_64_RELOC_TLV = 9 419 }; 420 421 // Values for segment_command.initprot. 422 // From <mach/vm_prot.h> 423 enum { 424 VM_PROT_READ = 0x1, 425 VM_PROT_WRITE = 0x2, 426 VM_PROT_EXECUTE = 0x4 427 }; 428 429 430 // Structs from <mach-o/loader.h> 431 432 struct mach_header { 433 uint32_t magic; 434 uint32_t cputype; 435 uint32_t cpusubtype; 436 uint32_t filetype; 437 uint32_t ncmds; 438 uint32_t sizeofcmds; 439 uint32_t flags; 440 }; 441 442 struct mach_header_64 { 443 uint32_t magic; 444 uint32_t cputype; 445 uint32_t cpusubtype; 446 uint32_t filetype; 447 uint32_t ncmds; 448 uint32_t sizeofcmds; 449 uint32_t flags; 450 uint32_t reserved; 451 }; 452 453 struct load_command { 454 uint32_t cmd; 455 uint32_t cmdsize; 456 }; 457 458 struct segment_command { 459 uint32_t cmd; 460 uint32_t cmdsize; 461 char segname[16]; 462 uint32_t vmaddr; 463 uint32_t vmsize; 464 uint32_t fileoff; 465 uint32_t filesize; 466 uint32_t maxprot; 467 uint32_t initprot; 468 uint32_t nsects; 469 uint32_t flags; 470 }; 471 472 struct segment_command_64 { 473 uint32_t cmd; 474 uint32_t cmdsize; 475 char segname[16]; 476 uint64_t vmaddr; 477 uint64_t vmsize; 478 uint64_t fileoff; 479 uint64_t filesize; 480 uint32_t maxprot; 481 uint32_t initprot; 482 uint32_t nsects; 483 uint32_t flags; 484 }; 485 486 struct section { 487 char sectname[16]; 488 char segname[16]; 489 uint32_t addr; 490 uint32_t size; 491 uint32_t offset; 492 uint32_t align; 493 uint32_t reloff; 494 uint32_t nreloc; 495 uint32_t flags; 496 uint32_t reserved1; 497 uint32_t reserved2; 498 }; 499 500 struct section_64 { 501 char sectname[16]; 502 char segname[16]; 503 uint64_t addr; 504 uint64_t size; 505 uint32_t offset; 506 uint32_t align; 507 uint32_t reloff; 508 uint32_t nreloc; 509 uint32_t flags; 510 uint32_t reserved1; 511 uint32_t reserved2; 512 uint32_t reserved3; 513 }; 514 515 struct fvmlib { 516 uint32_t name; 517 uint32_t minor_version; 518 uint32_t header_addr; 519 }; 520 521 struct fvmlib_command { 522 uint32_t cmd; 523 uint32_t cmdsize; 524 struct fvmlib fvmlib; 525 }; 526 527 struct dylib { 528 uint32_t name; 529 uint32_t timestamp; 530 uint32_t current_version; 531 uint32_t compatibility_version; 532 }; 533 534 struct dylib_command { 535 uint32_t cmd; 536 uint32_t cmdsize; 537 struct dylib dylib; 538 }; 539 540 struct sub_framework_command { 541 uint32_t cmd; 542 uint32_t cmdsize; 543 uint32_t umbrella; 544 }; 545 546 struct sub_client_command { 547 uint32_t cmd; 548 uint32_t cmdsize; 549 uint32_t client; 550 }; 551 552 struct sub_umbrella_command { 553 uint32_t cmd; 554 uint32_t cmdsize; 555 uint32_t sub_umbrella; 556 }; 557 558 struct sub_library_command { 559 uint32_t cmd; 560 uint32_t cmdsize; 561 uint32_t sub_library; 562 }; 563 564 struct prebound_dylib_command { 565 uint32_t cmd; 566 uint32_t cmdsize; 567 uint32_t name; 568 uint32_t nmodules; 569 uint32_t linked_modules; 570 }; 571 572 struct dylinker_command { 573 uint32_t cmd; 574 uint32_t cmdsize; 575 uint32_t name; 576 }; 577 578 struct thread_command { 579 uint32_t cmd; 580 uint32_t cmdsize; 581 }; 582 583 struct routines_command { 584 uint32_t cmd; 585 uint32_t cmdsize; 586 uint32_t init_address; 587 uint32_t init_module; 588 uint32_t reserved1; 589 uint32_t reserved2; 590 uint32_t reserved3; 591 uint32_t reserved4; 592 uint32_t reserved5; 593 uint32_t reserved6; 594 }; 595 596 struct routines_command_64 { 597 uint32_t cmd; 598 uint32_t cmdsize; 599 uint64_t init_address; 600 uint64_t init_module; 601 uint64_t reserved1; 602 uint64_t reserved2; 603 uint64_t reserved3; 604 uint64_t reserved4; 605 uint64_t reserved5; 606 uint64_t reserved6; 607 }; 608 609 struct symtab_command { 610 uint32_t cmd; 611 uint32_t cmdsize; 612 uint32_t symoff; 613 uint32_t nsyms; 614 uint32_t stroff; 615 uint32_t strsize; 616 }; 617 618 struct dysymtab_command { 619 uint32_t cmd; 620 uint32_t cmdsize; 621 uint32_t ilocalsym; 622 uint32_t nlocalsym; 623 uint32_t iextdefsym; 624 uint32_t nextdefsym; 625 uint32_t iundefsym; 626 uint32_t nundefsym; 627 uint32_t tocoff; 628 uint32_t ntoc; 629 uint32_t modtaboff; 630 uint32_t nmodtab; 631 uint32_t extrefsymoff; 632 uint32_t nextrefsyms; 633 uint32_t indirectsymoff; 634 uint32_t nindirectsyms; 635 uint32_t extreloff; 636 uint32_t nextrel; 637 uint32_t locreloff; 638 uint32_t nlocrel; 639 }; 640 641 struct dylib_table_of_contents { 642 uint32_t symbol_index; 643 uint32_t module_index; 644 }; 645 646 struct dylib_module { 647 uint32_t module_name; 648 uint32_t iextdefsym; 649 uint32_t nextdefsym; 650 uint32_t irefsym; 651 uint32_t nrefsym; 652 uint32_t ilocalsym; 653 uint32_t nlocalsym; 654 uint32_t iextrel; 655 uint32_t nextrel; 656 uint32_t iinit_iterm; 657 uint32_t ninit_nterm; 658 uint32_t objc_module_info_addr; 659 uint32_t objc_module_info_size; 660 }; 661 662 struct dylib_module_64 { 663 uint32_t module_name; 664 uint32_t iextdefsym; 665 uint32_t nextdefsym; 666 uint32_t irefsym; 667 uint32_t nrefsym; 668 uint32_t ilocalsym; 669 uint32_t nlocalsym; 670 uint32_t iextrel; 671 uint32_t nextrel; 672 uint32_t iinit_iterm; 673 uint32_t ninit_nterm; 674 uint32_t objc_module_info_size; 675 uint64_t objc_module_info_addr; 676 }; 677 678 struct dylib_reference { 679 uint32_t isym:24, 680 flags:8; 681 }; 682 683 684 struct twolevel_hints_command { 685 uint32_t cmd; 686 uint32_t cmdsize; 687 uint32_t offset; 688 uint32_t nhints; 689 }; 690 691 struct twolevel_hint { 692 uint32_t isub_image:8, 693 itoc:24; 694 }; 695 696 struct prebind_cksum_command { 697 uint32_t cmd; 698 uint32_t cmdsize; 699 uint32_t cksum; 700 }; 701 702 struct uuid_command { 703 uint32_t cmd; 704 uint32_t cmdsize; 705 uint8_t uuid[16]; 706 }; 707 708 struct rpath_command { 709 uint32_t cmd; 710 uint32_t cmdsize; 711 uint32_t path; 712 }; 713 714 struct linkedit_data_command { 715 uint32_t cmd; 716 uint32_t cmdsize; 717 uint32_t dataoff; 718 uint32_t datasize; 719 }; 720 721 struct data_in_code_entry { 722 uint32_t offset; 723 uint16_t length; 724 uint16_t kind; 725 }; 726 727 struct source_version_command { 728 uint32_t cmd; 729 uint32_t cmdsize; 730 uint64_t version; 731 }; 732 733 struct encryption_info_command { 734 uint32_t cmd; 735 uint32_t cmdsize; 736 uint32_t cryptoff; 737 uint32_t cryptsize; 738 uint32_t cryptid; 739 }; 740 741 struct version_min_command { 742 uint32_t cmd; 743 uint32_t cmdsize; 744 uint32_t version; 745 uint32_t reserved; 746 }; 747 748 struct dyld_info_command { 749 uint32_t cmd; 750 uint32_t cmdsize; 751 uint32_t rebase_off; 752 uint32_t rebase_size; 753 uint32_t bind_off; 754 uint32_t bind_size; 755 uint32_t weak_bind_off; 756 uint32_t weak_bind_size; 757 uint32_t lazy_bind_off; 758 uint32_t lazy_bind_size; 759 uint32_t export_off; 760 uint32_t export_size; 761 }; 762 763 struct linker_options_command { 764 uint32_t cmd; 765 uint32_t cmdsize; 766 uint32_t count; 767 }; 768 769 struct symseg_command { 770 uint32_t cmd; 771 uint32_t cmdsize; 772 uint32_t offset; 773 uint32_t size; 774 }; 775 776 struct ident_command { 777 uint32_t cmd; 778 uint32_t cmdsize; 779 }; 780 781 struct fvmfile_command { 782 uint32_t cmd; 783 uint32_t cmdsize; 784 uint32_t name; 785 uint32_t header_addr; 786 }; 787 788 struct tlv_descriptor_32 { 789 uint32_t thunk; 790 uint32_t key; 791 uint32_t offset; 792 }; 793 794 struct tlv_descriptor_64 { 795 uint64_t thunk; 796 uint64_t key; 797 uint64_t offset; 798 }; 799 800 struct tlv_descriptor { 801 uintptr_t thunk; 802 uintptr_t key; 803 uintptr_t offset; 804 }; 805 806 struct entry_point_command { 807 uint32_t cmd; 808 uint32_t cmdsize; 809 uint64_t entryoff; 810 uint64_t stacksize; 811 }; 812 813 814 // Structs from <mach-o/fat.h> 815 struct fat_header { 816 uint32_t magic; 817 uint32_t nfat_arch; 818 }; 819 820 struct fat_arch { 821 uint32_t cputype; 822 uint32_t cpusubtype; 823 uint32_t offset; 824 uint32_t size; 825 uint32_t align; 826 }; 827 828 // Structs from <mach-o/reloc.h> 829 struct relocation_info { 830 int32_t r_address; 831 uint32_t r_symbolnum:24, 832 r_pcrel:1, 833 r_length:2, 834 r_extern:1, 835 r_type:4; 836 }; 837 838 struct scattered_relocation_info { 839#if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && (BYTE_ORDER == BIG_ENDIAN) 840 uint32_t r_scattered:1, 841 r_pcrel:1, 842 r_length:2, 843 r_type:4, 844 r_address:24; 845#else 846 uint32_t r_address:24, 847 r_type:4, 848 r_length:2, 849 r_pcrel:1, 850 r_scattered:1; 851#endif 852 int32_t r_value; 853 }; 854 855 // Structs NOT from <mach-o/reloc.h>, but that make LLVM's life easier 856 struct any_relocation_info { 857 uint32_t r_word0, r_word1; 858 }; 859 860 // Structs from <mach-o/nlist.h> 861 struct nlist { 862 uint32_t n_strx; 863 uint8_t n_type; 864 uint8_t n_sect; 865 int16_t n_desc; 866 uint32_t n_value; 867 }; 868 869 struct nlist_64 { 870 uint32_t n_strx; 871 uint8_t n_type; 872 uint8_t n_sect; 873 uint16_t n_desc; 874 uint64_t n_value; 875 }; 876 877 // Get/Set functions from <mach-o/nlist.h> 878 879 static inline uint16_t GET_LIBRARY_ORDINAL(uint16_t n_desc) { 880 return (((n_desc) >> 8u) & 0xffu); 881 } 882 883 static inline void SET_LIBRARY_ORDINAL(uint16_t &n_desc, uint8_t ordinal) { 884 n_desc = (((n_desc) & 0x00ff) | (((ordinal) & 0xff) << 8)); 885 } 886 887 static inline uint8_t GET_COMM_ALIGN (uint16_t n_desc) { 888 return (n_desc >> 8u) & 0x0fu; 889 } 890 891 static inline void SET_COMM_ALIGN (uint16_t &n_desc, uint8_t align) { 892 n_desc = ((n_desc & 0xf0ffu) | ((align & 0x0fu) << 8u)); 893 } 894 895 // Enums from <mach/machine.h> 896 enum LLVM_ENUM_INT_TYPE(uint32_t) { 897 // Capability bits used in the definition of cpu_type. 898 CPU_ARCH_MASK = 0xff000000, // Mask for architecture bits 899 CPU_ARCH_ABI64 = 0x01000000 // 64 bit ABI 900 }; 901 902 // Constants for the cputype field. 903 enum CPUType { 904 CPU_TYPE_ANY = -1, 905 CPU_TYPE_X86 = 7, 906 CPU_TYPE_I386 = CPU_TYPE_X86, 907 CPU_TYPE_X86_64 = CPU_TYPE_X86 | CPU_ARCH_ABI64, 908 /* CPU_TYPE_MIPS = 8, */ 909 CPU_TYPE_MC98000 = 10, // Old Motorola PowerPC 910 CPU_TYPE_ARM = 12, 911 CPU_TYPE_SPARC = 14, 912 CPU_TYPE_POWERPC = 18, 913 CPU_TYPE_POWERPC64 = CPU_TYPE_POWERPC | CPU_ARCH_ABI64 914 }; 915 916 enum LLVM_ENUM_INT_TYPE(uint32_t) { 917 // Capability bits used in the definition of cpusubtype. 918 CPU_SUB_TYPE_MASK = 0xff000000, // Mask for architecture bits 919 CPU_SUB_TYPE_LIB64 = 0x80000000, // 64 bit libraries 920 921 // Special CPU subtype constants. 922 CPU_SUBTYPE_MULTIPLE = ~0u 923 }; 924 925 // Constants for the cpusubtype field. 926 enum CPUSubTypeX86 { 927 CPU_SUBTYPE_I386_ALL = 3, 928 CPU_SUBTYPE_386 = 3, 929 CPU_SUBTYPE_486 = 4, 930 CPU_SUBTYPE_486SX = 0x84, 931 CPU_SUBTYPE_586 = 5, 932 CPU_SUBTYPE_PENT = CPU_SUBTYPE_586, 933 CPU_SUBTYPE_PENTPRO = 0x16, 934 CPU_SUBTYPE_PENTII_M3 = 0x36, 935 CPU_SUBTYPE_PENTII_M5 = 0x56, 936 CPU_SUBTYPE_CELERON = 0x67, 937 CPU_SUBTYPE_CELERON_MOBILE = 0x77, 938 CPU_SUBTYPE_PENTIUM_3 = 0x08, 939 CPU_SUBTYPE_PENTIUM_3_M = 0x18, 940 CPU_SUBTYPE_PENTIUM_3_XEON = 0x28, 941 CPU_SUBTYPE_PENTIUM_M = 0x09, 942 CPU_SUBTYPE_PENTIUM_4 = 0x0a, 943 CPU_SUBTYPE_PENTIUM_4_M = 0x1a, 944 CPU_SUBTYPE_ITANIUM = 0x0b, 945 CPU_SUBTYPE_ITANIUM_2 = 0x1b, 946 CPU_SUBTYPE_XEON = 0x0c, 947 CPU_SUBTYPE_XEON_MP = 0x1c, 948 949 CPU_SUBTYPE_X86_ALL = 3, 950 CPU_SUBTYPE_X86_64_ALL = 3, 951 CPU_SUBTYPE_X86_ARCH1 = 4, 952 CPU_SUBTYPE_X86_64_H = 8 953 }; 954 static inline int CPU_SUBTYPE_INTEL(int Family, int Model) { 955 return Family | (Model << 4); 956 } 957 static inline int CPU_SUBTYPE_INTEL_FAMILY(CPUSubTypeX86 ST) { 958 return ((int)ST) & 0x0f; 959 } 960 static inline int CPU_SUBTYPE_INTEL_MODEL(CPUSubTypeX86 ST) { 961 return ((int)ST) >> 4; 962 } 963 enum { 964 CPU_SUBTYPE_INTEL_FAMILY_MAX = 15, 965 CPU_SUBTYPE_INTEL_MODEL_ALL = 0 966 }; 967 968 enum CPUSubTypeARM { 969 CPU_SUBTYPE_ARM_ALL = 0, 970 CPU_SUBTYPE_ARM_V4T = 5, 971 CPU_SUBTYPE_ARM_V6 = 6, 972 CPU_SUBTYPE_ARM_V5 = 7, 973 CPU_SUBTYPE_ARM_V5TEJ = 7, 974 CPU_SUBTYPE_ARM_XSCALE = 8, 975 CPU_SUBTYPE_ARM_V7 = 9, 976 CPU_SUBTYPE_ARM_V7F = 10, 977 CPU_SUBTYPE_ARM_V7S = 11, 978 CPU_SUBTYPE_ARM_V7K = 12, 979 CPU_SUBTYPE_ARM_V6M = 14, 980 CPU_SUBTYPE_ARM_V7M = 15, 981 CPU_SUBTYPE_ARM_V7EM = 16 982 }; 983 984 enum CPUSubTypeSPARC { 985 CPU_SUBTYPE_SPARC_ALL = 0 986 }; 987 988 enum CPUSubTypePowerPC { 989 CPU_SUBTYPE_POWERPC_ALL = 0, 990 CPU_SUBTYPE_POWERPC_601 = 1, 991 CPU_SUBTYPE_POWERPC_602 = 2, 992 CPU_SUBTYPE_POWERPC_603 = 3, 993 CPU_SUBTYPE_POWERPC_603e = 4, 994 CPU_SUBTYPE_POWERPC_603ev = 5, 995 CPU_SUBTYPE_POWERPC_604 = 6, 996 CPU_SUBTYPE_POWERPC_604e = 7, 997 CPU_SUBTYPE_POWERPC_620 = 8, 998 CPU_SUBTYPE_POWERPC_750 = 9, 999 CPU_SUBTYPE_POWERPC_7400 = 10, 1000 CPU_SUBTYPE_POWERPC_7450 = 11, 1001 CPU_SUBTYPE_POWERPC_970 = 100, 1002 1003 CPU_SUBTYPE_MC980000_ALL = CPU_SUBTYPE_POWERPC_ALL, 1004 CPU_SUBTYPE_MC98601 = CPU_SUBTYPE_POWERPC_601 1005 }; 1006 } // end namespace MachO 1007} // end namespace llvm 1008 1009#endif 1010