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/DataTypes.h" 18 19 // NOTE: The enums in this file are intentially named to be different than those 20 // in the headers in /usr/include/mach (on darwin systems) to avoid conflicts 21 // with those macros. 22 namespace llvm { 23 namespace MachO { 24 // Enums from <mach-o/loader.h> 25 enum { 26 // Constants for the "magic" field in llvm::MachO::mach_header and 27 // llvm::MachO::mach_header_64 28 HeaderMagic32 = 0xFEEDFACEu, // MH_MAGIC 29 HeaderMagic32Swapped = 0xCEFAEDFEu, // MH_CIGAM 30 HeaderMagic64 = 0xFEEDFACFu, // MH_MAGIC_64 31 HeaderMagic64Swapped = 0xCFFAEDFEu, // MH_CIGAM_64 32 UniversalMagic = 0xCAFEBABEu, // FAT_MAGIC 33 UniversalMagicSwapped = 0xBEBAFECAu, // FAT_CIGAM 34 35 // Constants for the "filetype" field in llvm::MachO::mach_header and 36 // llvm::MachO::mach_header_64 37 HeaderFileTypeObject = 0x1u, // MH_OBJECT 38 HeaderFileTypeExecutable = 0x2u, // MH_EXECUTE 39 HeaderFileTypeFixedVMShlib = 0x3u, // MH_FVMLIB 40 HeaderFileTypeCore = 0x4u, // MH_CORE 41 HeaderFileTypePreloadedExecutable = 0x5u, // MH_PRELOAD 42 HeaderFileTypeDynamicShlib = 0x6u, // MH_DYLIB 43 HeaderFileTypeDynamicLinkEditor = 0x7u, // MH_DYLINKER 44 HeaderFileTypeBundle = 0x8u, // MH_BUNDLE 45 HeaderFileTypeDynamicShlibStub = 0x9u, // MH_DYLIB_STUB 46 HeaderFileTypeDSYM = 0xAu, // MH_DSYM 47 HeaderFileTypeKextBundle = 0xBu, // MH_KEXT_BUNDLE 48 49 // Constant bits for the "flags" field in llvm::MachO::mach_header and 50 // llvm::MachO::mach_header_64 51 HeaderFlagBitNoUndefinedSymbols = 0x00000001u, // MH_NOUNDEFS 52 HeaderFlagBitIsIncrementalLinkObject= 0x00000002u, // MH_INCRLINK 53 HeaderFlagBitIsDynamicLinkObject = 0x00000004u, // MH_DYLDLINK 54 HeaderFlagBitBindAtLoad = 0x00000008u, // MH_BINDATLOAD 55 HeaderFlagBitPrebound = 0x00000010u, // MH_PREBOUND 56 HeaderFlagBitSplitSegments = 0x00000020u, // MH_SPLIT_SEGS 57 HeaderFlagBitLazyInit = 0x00000040u, // MH_LAZY_INIT 58 HeaderFlagBitTwoLevelNamespace = 0x00000080u, // MH_TWOLEVEL 59 HeaderFlagBitForceFlatNamespace = 0x00000100u, // MH_FORCE_FLAT 60 HeaderFlagBitNoMultipleDefintions = 0x00000200u, // MH_NOMULTIDEFS 61 HeaderFlagBitNoFixPrebinding = 0x00000400u, // MH_NOFIXPREBINDING 62 HeaderFlagBitPrebindable = 0x00000800u, // MH_PREBINDABLE 63 HeaderFlagBitAllModulesBound = 0x00001000u, // MH_ALLMODSBOUND 64 HeaderFlagBitSubsectionsViaSymbols = 0x00002000u, // MH_SUBSECTIONS_VIA_SYMBOLS 65 HeaderFlagBitCanonical = 0x00004000u, // MH_CANONICAL 66 HeaderFlagBitWeakDefines = 0x00008000u, // MH_WEAK_DEFINES 67 HeaderFlagBitBindsToWeak = 0x00010000u, // MH_BINDS_TO_WEAK 68 HeaderFlagBitAllowStackExecution = 0x00020000u, // MH_ALLOW_STACK_EXECUTION 69 HeaderFlagBitRootSafe = 0x00040000u, // MH_ROOT_SAFE 70 HeaderFlagBitSetUIDSafe = 0x00080000u, // MH_SETUID_SAFE 71 HeaderFlagBitNoReexportedDylibs = 0x00100000u, // MH_NO_REEXPORTED_DYLIBS 72 HeaderFlagBitPIE = 0x00200000u, // MH_PIE 73 HeaderFlagBitDeadStrippableDylib = 0x00400000u, // MH_DEAD_STRIPPABLE_DYLIB 74 75 // Constants for the "cmd" field in llvm::MachO::load_command 76 LoadCommandDynamicLinkerRequired = 0x80000000u, // LC_REQ_DYLD 77 LoadCommandSegment32 = 0x00000001u, // LC_SEGMENT 78 LoadCommandSymtab = 0x00000002u, // LC_SYMTAB 79 LoadCommandSymSeg = 0x00000003u, // LC_SYMSEG 80 LoadCommandThread = 0x00000004u, // LC_THREAD 81 LoadCommandUnixThread = 0x00000005u, // LC_UNIXTHREAD 82 LoadCommandFixedVMShlibLoad = 0x00000006u, // LC_LOADFVMLIB 83 LoadCommandFixedVMShlibIdent = 0x00000007u, // LC_IDFVMLIB 84 LoadCommandIdent = 0x00000008u, // LC_IDENT 85 LoadCommandFixedVMFileInclusion = 0x00000009u, // LC_FVMFILE 86 LoadCommandPrePage = 0x0000000Au, // LC_PREPAGE 87 LoadCommandDynamicSymtabInfo = 0x0000000Bu, // LC_DYSYMTAB 88 LoadCommandDylibLoad = 0x0000000Cu, // LC_LOAD_DYLIB 89 LoadCommandDylibIdent = 0x0000000Du, // LC_ID_DYLIB 90 LoadCommandDynamicLinkerLoad = 0x0000000Eu, // LC_LOAD_DYLINKER 91 LoadCommandDynamicLinkerIdent = 0x0000000Fu, // LC_ID_DYLINKER 92 LoadCommandDylibPrebound = 0x00000010u, // LC_PREBOUND_DYLIB 93 LoadCommandRoutines32 = 0x00000011u, // LC_ROUTINES 94 LoadCommandSubFramework = 0x00000012u, // LC_SUB_FRAMEWORK 95 LoadCommandSubUmbrella = 0x00000013u, // LC_SUB_UMBRELLA 96 LoadCommandSubClient = 0x00000014u, // LC_SUB_CLIENT 97 LoadCommandSubLibrary = 0x00000015u, // LC_SUB_LIBRARY 98 LoadCommandTwoLevelHints = 0x00000016u, // LC_TWOLEVEL_HINTS 99 LoadCommandPreBindChecksum = 0x00000017u, // LC_PREBIND_CKSUM 100 LoadCommandDylibLoadWeak = 0x80000018u, // LC_LOAD_WEAK_DYLIB 101 LoadCommandSegment64 = 0x00000019u, // LC_SEGMENT_64 102 LoadCommandRoutines64 = 0x0000001Au, // LC_ROUTINES_64 103 LoadCommandUUID = 0x0000001Bu, // LC_UUID 104 LoadCommandRunpath = 0x8000001Cu, // LC_RPATH 105 LoadCommandCodeSignature = 0x0000001Du, // LC_CODE_SIGNATURE 106 LoadCommandSegmentSplitInfo = 0x0000001Eu, // LC_SEGMENT_SPLIT_INFO 107 LoadCommandDylibReexport = 0x8000001Fu, // LC_REEXPORT_DYLIB 108 LoadCommandDylibLazyLoad = 0x00000020u, // LC_LAZY_LOAD_DYLIB 109 LoadCommandEncryptionInfo = 0x00000021u, // LC_ENCRYPTION_INFO 110 LoadCommandDynamicLinkerInfo = 0x00000022u, // LC_DYLD_INFO 111 LoadCommandDynamicLinkerInfoOnly = 0x80000022u, // LC_DYLD_INFO_ONLY 112 LoadCommandDylibLoadUpward = 0x80000023u, // LC_LOAD_UPWARD_DYLIB 113 LoadCommandVersionMinMacOSX = 0x00000024u, // LC_VERSION_MIN_MACOSX 114 LoadCommandVersionMinIPhoneOS = 0x00000025u, // LC_VERSION_MIN_IPHONEOS 115 LoadCommandFunctionStarts = 0x00000026u, // LC_FUNCTION_STARTS 116 LoadCommandDyldEnvironment = 0x00000027u, // LC_DYLD_ENVIRONMENT 117 118 // Constant bits for the "flags" field in llvm::MachO::segment_command 119 SegmentCommandFlagBitHighVM = 0x1u, // SG_HIGHVM 120 SegmentCommandFlagBitFixedVMLibrary = 0x2u, // SG_FVMLIB 121 SegmentCommandFlagBitNoRelocations = 0x4u, // SG_NORELOC 122 SegmentCommandFlagBitProtectedVersion1 = 0x8u, // SG_PROTECTED_VERSION_1 123 124 125 // Constant masks for the "flags" field in llvm::MachO::section and 126 // llvm::MachO::section_64 127 SectionFlagMaskSectionType = 0x000000ffu, // SECTION_TYPE 128 SectionFlagMaskAllAttributes = 0xffffff00u, // SECTION_ATTRIBUTES 129 SectionFlagMaskUserAttributes = 0xff000000u, // SECTION_ATTRIBUTES_USR 130 SectionFlagMaskSystemAttributes = 0x00ffff00u, // SECTION_ATTRIBUTES_SYS 131 132 // Constant masks for the "flags[7:0]" field in llvm::MachO::section and 133 // llvm::MachO::section_64 (mask "flags" with SECTION_TYPE) 134 SectionTypeRegular = 0x00u, // S_REGULAR 135 SectionTypeZeroFill = 0x01u, // S_ZEROFILL 136 SectionTypeCStringLiterals = 0x02u, // S_CSTRING_LITERALS 137 SectionType4ByteLiterals = 0x03u, // S_4BYTE_LITERALS 138 SectionType8ByteLiterals = 0x04u, // S_8BYTE_LITERALS 139 SectionTypeLiteralPointers = 0x05u, // S_LITERAL_POINTERS 140 SectionTypeNonLazySymbolPointers = 0x06u, // S_NON_LAZY_SYMBOL_POINTERS 141 SectionTypeLazySymbolPointers = 0x07u, // S_LAZY_SYMBOL_POINTERS 142 SectionTypeSymbolStubs = 0x08u, // S_SYMBOL_STUBS 143 SectionTypeModuleInitFunctionPointers = 0x09u, // S_MOD_INIT_FUNC_POINTERS 144 SectionTypeModuleTermFunctionPointers = 0x0au, // S_MOD_TERM_FUNC_POINTERS 145 SectionTypeCoalesced = 0x0bu, // S_COALESCED 146 SectionTypeZeroFillLarge = 0x0cu, // S_GB_ZEROFILL 147 SectionTypeInterposing = 0x0du, // S_INTERPOSING 148 SectionType16ByteLiterals = 0x0eu, // S_16BYTE_LITERALS 149 SectionTypeDTraceObjectFormat = 0x0fu, // S_DTRACE_DOF 150 SectionTypeLazyDylibSymbolPointers = 0x10u, // S_LAZY_DYLIB_SYMBOL_POINTERS 151 152 // Constant masks for the "flags[31:24]" field in llvm::MachO::section and 153 // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_USR) 154 SectionAttrUserPureInstructions = 0x80000000u, // S_ATTR_PURE_INSTRUCTIONS 155 SectionAttrUserNoTableOfContents = 0x40000000u, // S_ATTR_NO_TOC 156 SectionAttrUserCanStripStaticSymbols = 0x20000000u, // S_ATTR_STRIP_STATIC_SYMS 157 SectionAttrUserNoDeadStrip = 0x10000000u, // S_ATTR_NO_DEAD_STRIP 158 SectionAttrUserLiveSupport = 0x08000000u, // S_ATTR_LIVE_SUPPORT 159 SectionAttrUserSelfModifyingCode = 0x04000000u, // S_ATTR_SELF_MODIFYING_CODE 160 SectionAttrUserDebug = 0x02000000u, // S_ATTR_DEBUG 161 162 // Constant masks for the "flags[23:8]" field in llvm::MachO::section and 163 // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_SYS) 164 SectionAttrSytemSomeInstructions = 0x00000400u, // S_ATTR_SOME_INSTRUCTIONS 165 SectionAttrSytemHasExternalRelocations= 0x00000200u, // S_ATTR_EXT_RELOC 166 SectionAttrSytemHasLocalRelocations = 0x00000100u, // S_ATTR_LOC_RELOC 167 168 IndirectSymbolLocal = 0x80000000u, // INDIRECT_SYMBOL_LOCAL 169 IndirectSymbolAbsolute = 0x40000000u, // INDIRECT_SYMBOL_ABS 170 171 RebaseTypePointer = 1u, // REBASE_TYPE_POINTER 172 RebaseTypeTextAbsolute32 = 2u, // REBASE_TYPE_TEXT_ABSOLUTE32 173 RebaseTypeTextPCRelative32 = 3u, // REBASE_TYPE_TEXT_PCREL32 174 175 RebaseOpcodeMask = 0xF0u, // REBASE_OPCODE_MASK 176 RebaseImmediateMask = 0x0Fu, // REBASE_IMMEDIATE_MASK 177 RebaseOpcodeDone = 0x00u, // REBASE_OPCODE_DONE 178 RebaseOpcodeSetTypeImmediate = 0x10u, // REBASE_OPCODE_SET_TYPE_IMM 179 RebaseOpcodeSetSegmentAndOffsetULEB = 0x20u, // REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB 180 RebaseOpcodeAddAddressULEB = 0x30u, // REBASE_OPCODE_ADD_ADDR_ULEB 181 RebaseOpcodeAddAddressImmediateScaled = 0x40u, // REBASE_OPCODE_ADD_ADDR_IMM_SCALED 182 RebaseOpcodeDoRebaseImmediateTimes = 0x50u, // REBASE_OPCODE_DO_REBASE_IMM_TIMES 183 RebaseOpcodeDoRebaseULEBTimes = 0x60u, // REBASE_OPCODE_DO_REBASE_ULEB_TIMES 184 RebaseOpcodeDoRebaseAddAddressULEB = 0x70u, // REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB 185 RebaseOpcodeDoRebaseULEBTimesSkippingULEB = 0x80u, // REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB 186 187 188 BindTypePointer = 1u, // BIND_TYPE_POINTER 189 BindTypeTextAbsolute32 = 2u, // BIND_TYPE_TEXT_ABSOLUTE32 190 BindTypeTextPCRelative32 = 3u, // BIND_TYPE_TEXT_PCREL32 191 192 BindSpecialDylibSelf = 0u, // BIND_SPECIAL_DYLIB_SELF 193 BindSpecialDylibMainExecutable = -1u, // BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE 194 BindSpecialDylibFlatLookup = -2u, // BIND_SPECIAL_DYLIB_FLAT_LOOKUP 195 196 BindSymbolFlagsWeakImport = 0x1u, // BIND_SYMBOL_FLAGS_WEAK_IMPORT 197 BindSymbolFlagsNonWeakDefinition = 0x8u, // BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION 198 199 BindOpcodeMask = 0xF0u, // BIND_OPCODE_MASK 200 BindImmediateMask = 0x0Fu, // BIND_IMMEDIATE_MASK 201 BindOpcodeDone = 0x00u, // BIND_OPCODE_DONE 202 BindOpcodeSetDylibOrdinalImmediate = 0x10u, // BIND_OPCODE_SET_DYLIB_ORDINAL_IMM 203 BindOpcodeSetDylibOrdinalULEB = 0x20u, // BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB 204 BindOpcodeSetDylibSpecialImmediate = 0x30u, // BIND_OPCODE_SET_DYLIB_SPECIAL_IMM 205 BindOpcodeSetSymbolTrailingFlagsImmediate = 0x40u, // BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM 206 BindOpcodeSetTypeImmediate = 0x50u, // BIND_OPCODE_SET_TYPE_IMM 207 BindOpcodeSetAppendSLEB = 0x60u, // BIND_OPCODE_SET_ADDEND_SLEB 208 BindOpcodeSetSegmentAndOffsetULEB = 0x70u, // BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB 209 BindOpcodeAddAddressULEB = 0x80u, // BIND_OPCODE_ADD_ADDR_ULEB 210 BindOpcodeDoBind = 0x90u, // BIND_OPCODE_DO_BIND 211 BindOpcodeDoBindAddAddressULEB = 0xA0u, // BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB 212 BindOpcodeDoBindAddAddressImmediateScaled = 0xB0u, // BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED 213 BindOpcodeDoBindULEBTimesSkippingULEB = 0xC0u, // BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB 214 215 ExportSymbolFlagsKindMask = 0x03u, // EXPORT_SYMBOL_FLAGS_KIND_MASK 216 ExportSymbolFlagsKindRegular = 0x00u, // EXPORT_SYMBOL_FLAGS_KIND_REGULAR 217 ExportSymbolFlagsKindThreadLocal = 0x01u, // EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL 218 ExportSymbolFlagsWeakDefinition = 0x04u, // EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION 219 ExportSymbolFlagsIndirectDefinition = 0x08u, // EXPORT_SYMBOL_FLAGS_INDIRECT_DEFINITION 220 ExportSymbolFlagsHasSpecializations = 0x10u, // EXPORT_SYMBOL_FLAGS_HAS_SPECIALIZATIONS 221 222 223 // Constant masks for the "n_type" field in llvm::MachO::nlist and 224 // llvm::MachO::nlist_64 225 NlistMaskStab = 0xe0, // N_STAB 226 NlistMaskPrivateExternal = 0x10, // N_PEXT 227 NlistMaskType = 0x0e, // N_TYPE 228 NlistMaskExternal = 0x01, // N_EXT 229 230 // Constants for the "n_type & N_TYPE" llvm::MachO::nlist and 231 // llvm::MachO::nlist_64 232 NListTypeUndefined = 0x0u, // N_UNDF 233 NListTypeAbsolute = 0x2u, // N_ABS 234 NListTypeSection = 0xeu, // N_SECT 235 NListTypePreboundUndefined = 0xcu, // N_PBUD 236 NListTypeIndirect = 0xau, // N_INDR 237 238 // Constant masks for the "n_sect" field in llvm::MachO::nlist and 239 // llvm::MachO::nlist_64 240 NListSectionNoSection = 0u, // NO_SECT 241 NListSectionMaxSection = 0xffu, // MAX_SECT 242 243 // Constant values for the "n_type" field in llvm::MachO::nlist and 244 // llvm::MachO::nlist_64 when "(n_type & NlistMaskStab) != 0" 245 StabGlobalSymbol = 0x20u, // N_GSYM 246 StabFunctionName = 0x22u, // N_FNAME 247 StabFunction = 0x24u, // N_FUN 248 StabStaticSymbol = 0x26u, // N_STSYM 249 StabLocalCommon = 0x28u, // N_LCSYM 250 StabBeginSymbol = 0x2Eu, // N_BNSYM 251 StabSourceFileOptions = 0x3Cu, // N_OPT 252 StabRegisterSymbol = 0x40u, // N_RSYM 253 StabSourceLine = 0x44u, // N_SLINE 254 StabEndSymbol = 0x4Eu, // N_ENSYM 255 StabStructureType = 0x60u, // N_SSYM 256 StabSourceFileName = 0x64u, // N_SO 257 StabObjectFileName = 0x66u, // N_OSO 258 StabLocalSymbol = 0x80u, // N_LSYM 259 StabBeginIncludeFileName = 0x82u, // N_BINCL 260 StabIncludeFileName = 0x84u, // N_SOL 261 StabCompilerParameters = 0x86u, // N_PARAMS 262 StabCompilerVersion = 0x88u, // N_VERSION 263 StabCompilerOptLevel = 0x8Au, // N_OLEVEL 264 StabParameter = 0xA0u, // N_PSYM 265 StabEndIncludeFile = 0xA2u, // N_EINCL 266 StabAlternateEntry = 0xA4u, // N_ENTRY 267 StabLeftBracket = 0xC0u, // N_LBRAC 268 StabDeletedIncludeFile = 0xC2u, // N_EXCL 269 StabRightBracket = 0xE0u, // N_RBRAC 270 StabBeginCommon = 0xE2u, // N_BCOMM 271 StabEndCommon = 0xE4u, // N_ECOMM 272 StabEndCommonLocal = 0xE8u, // N_ECOML 273 StabLength = 0xFEu // N_LENG 274 275 }; 276 277 // Structs from <mach-o/loader.h> 278 279 struct mach_header { 280 uint32_t magic; 281 uint32_t cputype; 282 uint32_t cpusubtype; 283 uint32_t filetype; 284 uint32_t ncmds; 285 uint32_t sizeofcmds; 286 uint32_t flags; 287 }; 288 289 struct mach_header_64 { 290 uint32_t magic; 291 uint32_t cputype; 292 uint32_t cpusubtype; 293 uint32_t filetype; 294 uint32_t ncmds; 295 uint32_t sizeofcmds; 296 uint32_t flags; 297 uint32_t reserved; 298 }; 299 300 struct load_command { 301 uint32_t cmd; 302 uint32_t cmdsize; 303 }; 304 305 struct segment_command { 306 uint32_t cmd; 307 uint32_t cmdsize; 308 char segname[16]; 309 uint32_t vmaddr; 310 uint32_t vmsize; 311 uint32_t fileoff; 312 uint32_t filesize; 313 uint32_t maxprot; 314 uint32_t initprot; 315 uint32_t nsects; 316 uint32_t flags; 317 }; 318 319 struct segment_command_64 { 320 uint32_t cmd; 321 uint32_t cmdsize; 322 char segname[16]; 323 uint64_t vmaddr; 324 uint64_t vmsize; 325 uint64_t fileoff; 326 uint64_t filesize; 327 uint32_t maxprot; 328 uint32_t initprot; 329 uint32_t nsects; 330 uint32_t flags; 331 }; 332 333 struct section { 334 char sectname[16]; 335 char segname[16]; 336 uint32_t addr; 337 uint32_t size; 338 uint32_t offset; 339 uint32_t align; 340 uint32_t reloff; 341 uint32_t nreloc; 342 uint32_t flags; 343 uint32_t reserved1; 344 uint32_t reserved2; 345 }; 346 347 struct section_64 { 348 char sectname[16]; 349 char segname[16]; 350 uint64_t addr; 351 uint64_t size; 352 uint32_t offset; 353 uint32_t align; 354 uint32_t reloff; 355 uint32_t nreloc; 356 uint32_t flags; 357 uint32_t reserved1; 358 uint32_t reserved2; 359 uint32_t reserved3; 360 }; 361 362 struct fvmlib { 363 uint32_t name; 364 uint32_t minor_version; 365 uint32_t header_addr; 366 }; 367 368 struct fvmlib_command { 369 uint32_t cmd; 370 uint32_t cmdsize; 371 struct fvmlib fvmlib; 372 }; 373 374 struct dylib { 375 uint32_t name; 376 uint32_t timestamp; 377 uint32_t current_version; 378 uint32_t compatibility_version; 379 }; 380 381 struct dylib_command { 382 uint32_t cmd; 383 uint32_t cmdsize; 384 struct dylib dylib; 385 }; 386 387 struct sub_framework_command { 388 uint32_t cmd; 389 uint32_t cmdsize; 390 uint32_t umbrella; 391 }; 392 393 struct sub_client_command { 394 uint32_t cmd; 395 uint32_t cmdsize; 396 uint32_t client; 397 }; 398 399 struct sub_umbrella_command { 400 uint32_t cmd; 401 uint32_t cmdsize; 402 uint32_t sub_umbrella; 403 }; 404 405 struct sub_library_command { 406 uint32_t cmd; 407 uint32_t cmdsize; 408 uint32_t sub_library; 409 }; 410 411 struct prebound_dylib_command { 412 uint32_t cmd; 413 uint32_t cmdsize; 414 uint32_t name; 415 uint32_t nmodules; 416 uint32_t linked_modules; 417 }; 418 419 struct dylinker_command { 420 uint32_t cmd; 421 uint32_t cmdsize; 422 uint32_t name; 423 }; 424 425 struct thread_command { 426 uint32_t cmd; 427 uint32_t cmdsize; 428 }; 429 430 struct routines_command { 431 uint32_t cmd; 432 uint32_t cmdsize; 433 uint32_t init_address; 434 uint32_t init_module; 435 uint32_t reserved1; 436 uint32_t reserved2; 437 uint32_t reserved3; 438 uint32_t reserved4; 439 uint32_t reserved5; 440 uint32_t reserved6; 441 }; 442 443 struct routines_command_64 { 444 uint32_t cmd; 445 uint32_t cmdsize; 446 uint64_t init_address; 447 uint64_t init_module; 448 uint64_t reserved1; 449 uint64_t reserved2; 450 uint64_t reserved3; 451 uint64_t reserved4; 452 uint64_t reserved5; 453 uint64_t reserved6; 454 }; 455 456 struct symtab_command { 457 uint32_t cmd; 458 uint32_t cmdsize; 459 uint32_t symoff; 460 uint32_t nsyms; 461 uint32_t stroff; 462 uint32_t strsize; 463 }; 464 465 struct dysymtab_command { 466 uint32_t cmd; 467 uint32_t cmdsize; 468 uint32_t ilocalsym; 469 uint32_t nlocalsym; 470 uint32_t iextdefsym; 471 uint32_t nextdefsym; 472 uint32_t iundefsym; 473 uint32_t nundefsym; 474 uint32_t tocoff; 475 uint32_t ntoc; 476 uint32_t modtaboff; 477 uint32_t nmodtab; 478 uint32_t extrefsymoff; 479 uint32_t nextrefsyms; 480 uint32_t indirectsymoff; 481 uint32_t nindirectsyms; 482 uint32_t extreloff; 483 uint32_t nextrel; 484 uint32_t locreloff; 485 uint32_t nlocrel; 486 }; 487 488 struct dylib_table_of_contents { 489 uint32_t symbol_index; 490 uint32_t module_index; 491 }; 492 493 struct dylib_module { 494 uint32_t module_name; 495 uint32_t iextdefsym; 496 uint32_t nextdefsym; 497 uint32_t irefsym; 498 uint32_t nrefsym; 499 uint32_t ilocalsym; 500 uint32_t nlocalsym; 501 uint32_t iextrel; 502 uint32_t nextrel; 503 uint32_t iinit_iterm; 504 uint32_t ninit_nterm; 505 uint32_t objc_module_info_addr; 506 uint32_t objc_module_info_size; 507 }; 508 509 struct dylib_module_64 { 510 uint32_t module_name; 511 uint32_t iextdefsym; 512 uint32_t nextdefsym; 513 uint32_t irefsym; 514 uint32_t nrefsym; 515 uint32_t ilocalsym; 516 uint32_t nlocalsym; 517 uint32_t iextrel; 518 uint32_t nextrel; 519 uint32_t iinit_iterm; 520 uint32_t ninit_nterm; 521 uint32_t objc_module_info_size; 522 uint64_t objc_module_info_addr; 523 }; 524 525 struct dylib_reference { 526 uint32_t isym:24, 527 flags:8; 528 }; 529 530 531 struct twolevel_hints_command { 532 uint32_t cmd; 533 uint32_t cmdsize; 534 uint32_t offset; 535 uint32_t nhints; 536 }; 537 538 struct twolevel_hint { 539 uint32_t isub_image:8, 540 itoc:24; 541 }; 542 543 struct prebind_cksum_command { 544 uint32_t cmd; 545 uint32_t cmdsize; 546 uint32_t cksum; 547 }; 548 549 struct uuid_command { 550 uint32_t cmd; 551 uint32_t cmdsize; 552 uint8_t uuid[16]; 553 }; 554 555 struct rpath_command { 556 uint32_t cmd; 557 uint32_t cmdsize; 558 uint32_t path; 559 }; 560 561 struct linkedit_data_command { 562 uint32_t cmd; 563 uint32_t cmdsize; 564 uint32_t dataoff; 565 uint32_t datasize; 566 }; 567 568 struct encryption_info_command { 569 uint32_t cmd; 570 uint32_t cmdsize; 571 uint32_t cryptoff; 572 uint32_t cryptsize; 573 uint32_t cryptid; 574 }; 575 576 struct version_min_command { 577 uint32_t cmd; 578 uint32_t cmdsize; 579 uint32_t version; 580 uint32_t reserved; 581 }; 582 583 struct dyld_info_command { 584 uint32_t cmd; 585 uint32_t cmdsize; 586 uint32_t rebase_off; 587 uint32_t rebase_size; 588 uint32_t bind_off; 589 uint32_t bind_size; 590 uint32_t weak_bind_off; 591 uint32_t weak_bind_size; 592 uint32_t lazy_bind_off; 593 uint32_t lazy_bind_size; 594 uint32_t export_off; 595 uint32_t export_size; 596 }; 597 598 struct symseg_command { 599 uint32_t cmd; 600 uint32_t cmdsize; 601 uint32_t offset; 602 uint32_t size; 603 }; 604 605 struct ident_command { 606 uint32_t cmd; 607 uint32_t cmdsize; 608 }; 609 610 struct fvmfile_command { 611 uint32_t cmd; 612 uint32_t cmdsize; 613 uint32_t name; 614 uint32_t header_addr; 615 }; 616 617 618 // Structs from <mach-o/fat.h> 619 struct fat_header { 620 uint32_t magic; 621 uint32_t nfat_arch; 622 }; 623 624 struct fat_arch { 625 uint32_t cputype; 626 uint32_t cpusubtype; 627 uint32_t offset; 628 uint32_t size; 629 uint32_t align; 630 }; 631 632 // Structs from <mach-o/fat.h> 633 struct nlist { 634 uint32_t n_strx; 635 uint8_t n_type; 636 uint8_t n_sect; 637 int16_t n_desc; 638 uint32_t n_value; 639 }; 640 641 struct nlist_64 { 642 uint32_t n_strx; 643 uint8_t n_type; 644 uint8_t n_sect; 645 uint16_t n_desc; 646 uint64_t n_value; 647 }; 648 649 // Get/Set functions from <mach-o/nlist.h> 650 651 static inline uint16_t GET_LIBRARY_ORDINAL(uint16_t n_desc) 652 { 653 return (((n_desc) >> 8u) & 0xffu); 654 } 655 656 static inline void SET_LIBRARY_ORDINAL(uint16_t &n_desc, uint8_t ordinal) 657 { 658 n_desc = (((n_desc) & 0x00ff) | (((ordinal) & 0xff) << 8)); 659 } 660 661 static inline uint8_t GET_COMM_ALIGN (uint16_t n_desc) 662 { 663 return (n_desc >> 8u) & 0x0fu; 664 } 665 666 static inline void SET_COMM_ALIGN (uint16_t &n_desc, uint8_t align) 667 { 668 n_desc = ((n_desc & 0xf0ffu) | ((align & 0x0fu) << 8u)); 669 } 670 671 // Enums from <mach/machine.h> 672 enum { 673 // Capability bits used in the definition of cpu_type. 674 CPUArchMask = 0xff000000, // Mask for architecture bits 675 CPUArchABI64 = 0x01000000, // 64 bit ABI 676 677 // Constants for the cputype field. 678 CPUTypeI386 = 7, 679 CPUTypeX86_64 = CPUTypeI386 | CPUArchABI64, 680 CPUTypeARM = 12, 681 CPUTypeSPARC = 14, 682 CPUTypePowerPC = 18, 683 CPUTypePowerPC64 = CPUTypePowerPC | CPUArchABI64, 684 685 686 // Constants for the cpusubtype field. 687 688 // X86 689 CPUSubType_I386_ALL = 3, 690 CPUSubType_X86_64_ALL = 3, 691 692 // ARM 693 CPUSubType_ARM_ALL = 0, 694 CPUSubType_ARM_V4T = 5, 695 CPUSubType_ARM_V5 = 7, 696 CPUSubType_ARM_V6 = 6, 697 CPUSubType_ARM_V7 = 9, 698 699 // PowerPC 700 CPUSubType_POWERPC_ALL = 0, 701 702 CPUSubType_SPARC_ALL = 0 703 }; 704 } // end namespace MachO 705 } // end namespace llvm 706 707 #endif 708
