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 LoadCommandMain = 0x80000028u, // LC_MAIN 118 LoadCommandDataInCode = 0x00000029u, // LC_DATA_IN_CODE 119 LoadCommandSourceVersion = 0x0000002Au, // LC_SOURCE_VERSION 120 LoadCommandCodeSignDRs = 0x0000002Bu, // LC_DYLIB_CODE_SIGN_DRS 121 122 // Constant bits for the "flags" field in llvm::MachO::segment_command 123 SegmentCommandFlagBitHighVM = 0x1u, // SG_HIGHVM 124 SegmentCommandFlagBitFixedVMLibrary = 0x2u, // SG_FVMLIB 125 SegmentCommandFlagBitNoRelocations = 0x4u, // SG_NORELOC 126 SegmentCommandFlagBitProtectedVersion1 = 0x8u, // SG_PROTECTED_VERSION_1 127 128 129 // Constant masks for the "flags" field in llvm::MachO::section and 130 // llvm::MachO::section_64 131 SectionFlagMaskSectionType = 0x000000ffu, // SECTION_TYPE 132 SectionFlagMaskAllAttributes = 0xffffff00u, // SECTION_ATTRIBUTES 133 SectionFlagMaskUserAttributes = 0xff000000u, // SECTION_ATTRIBUTES_USR 134 SectionFlagMaskSystemAttributes = 0x00ffff00u, // SECTION_ATTRIBUTES_SYS 135 136 // Constant masks for the "flags[7:0]" field in llvm::MachO::section and 137 // llvm::MachO::section_64 (mask "flags" with SECTION_TYPE) 138 SectionTypeRegular = 0x00u, // S_REGULAR 139 SectionTypeZeroFill = 0x01u, // S_ZEROFILL 140 SectionTypeCStringLiterals = 0x02u, // S_CSTRING_LITERALS 141 SectionType4ByteLiterals = 0x03u, // S_4BYTE_LITERALS 142 SectionType8ByteLiterals = 0x04u, // S_8BYTE_LITERALS 143 SectionTypeLiteralPointers = 0x05u, // S_LITERAL_POINTERS 144 SectionTypeNonLazySymbolPointers = 0x06u, // S_NON_LAZY_SYMBOL_POINTERS 145 SectionTypeLazySymbolPointers = 0x07u, // S_LAZY_SYMBOL_POINTERS 146 SectionTypeSymbolStubs = 0x08u, // S_SYMBOL_STUBS 147 SectionTypeModuleInitFunctionPointers = 0x09u, // S_MOD_INIT_FUNC_POINTERS 148 SectionTypeModuleTermFunctionPointers = 0x0au, // S_MOD_TERM_FUNC_POINTERS 149 SectionTypeCoalesced = 0x0bu, // S_COALESCED 150 SectionTypeZeroFillLarge = 0x0cu, // S_GB_ZEROFILL 151 SectionTypeInterposing = 0x0du, // S_INTERPOSING 152 SectionType16ByteLiterals = 0x0eu, // S_16BYTE_LITERALS 153 SectionTypeDTraceObjectFormat = 0x0fu, // S_DTRACE_DOF 154 SectionTypeLazyDylibSymbolPointers = 0x10u, // S_LAZY_DYLIB_SYMBOL_POINTERS 155 156 // Constant masks for the "flags[31:24]" field in llvm::MachO::section and 157 // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_USR) 158 SectionAttrUserPureInstructions = 0x80000000u, // S_ATTR_PURE_INSTRUCTIONS 159 SectionAttrUserNoTableOfContents = 0x40000000u, // S_ATTR_NO_TOC 160 SectionAttrUserCanStripStaticSymbols = 0x20000000u, // S_ATTR_STRIP_STATIC_SYMS 161 SectionAttrUserNoDeadStrip = 0x10000000u, // S_ATTR_NO_DEAD_STRIP 162 SectionAttrUserLiveSupport = 0x08000000u, // S_ATTR_LIVE_SUPPORT 163 SectionAttrUserSelfModifyingCode = 0x04000000u, // S_ATTR_SELF_MODIFYING_CODE 164 SectionAttrUserDebug = 0x02000000u, // S_ATTR_DEBUG 165 166 // Constant masks for the "flags[23:8]" field in llvm::MachO::section and 167 // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_SYS) 168 SectionAttrSytemSomeInstructions = 0x00000400u, // S_ATTR_SOME_INSTRUCTIONS 169 SectionAttrSytemHasExternalRelocations= 0x00000200u, // S_ATTR_EXT_RELOC 170 SectionAttrSytemHasLocalRelocations = 0x00000100u, // S_ATTR_LOC_RELOC 171 172 IndirectSymbolLocal = 0x80000000u, // INDIRECT_SYMBOL_LOCAL 173 IndirectSymbolAbsolute = 0x40000000u, // INDIRECT_SYMBOL_ABS 174 175 RebaseTypePointer = 1u, // REBASE_TYPE_POINTER 176 RebaseTypeTextAbsolute32 = 2u, // REBASE_TYPE_TEXT_ABSOLUTE32 177 RebaseTypeTextPCRelative32 = 3u, // REBASE_TYPE_TEXT_PCREL32 178 179 RebaseOpcodeMask = 0xF0u, // REBASE_OPCODE_MASK 180 RebaseImmediateMask = 0x0Fu, // REBASE_IMMEDIATE_MASK 181 RebaseOpcodeDone = 0x00u, // REBASE_OPCODE_DONE 182 RebaseOpcodeSetTypeImmediate = 0x10u, // REBASE_OPCODE_SET_TYPE_IMM 183 RebaseOpcodeSetSegmentAndOffsetULEB = 0x20u, // REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB 184 RebaseOpcodeAddAddressULEB = 0x30u, // REBASE_OPCODE_ADD_ADDR_ULEB 185 RebaseOpcodeAddAddressImmediateScaled = 0x40u, // REBASE_OPCODE_ADD_ADDR_IMM_SCALED 186 RebaseOpcodeDoRebaseImmediateTimes = 0x50u, // REBASE_OPCODE_DO_REBASE_IMM_TIMES 187 RebaseOpcodeDoRebaseULEBTimes = 0x60u, // REBASE_OPCODE_DO_REBASE_ULEB_TIMES 188 RebaseOpcodeDoRebaseAddAddressULEB = 0x70u, // REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB 189 RebaseOpcodeDoRebaseULEBTimesSkippingULEB = 0x80u, // REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB 190 191 192 BindTypePointer = 1u, // BIND_TYPE_POINTER 193 BindTypeTextAbsolute32 = 2u, // BIND_TYPE_TEXT_ABSOLUTE32 194 BindTypeTextPCRelative32 = 3u, // BIND_TYPE_TEXT_PCREL32 195 196 BindSpecialDylibSelf = 0u, // BIND_SPECIAL_DYLIB_SELF 197 BindSpecialDylibMainExecutable = -1u, // BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE 198 BindSpecialDylibFlatLookup = -2u, // BIND_SPECIAL_DYLIB_FLAT_LOOKUP 199 200 BindSymbolFlagsWeakImport = 0x1u, // BIND_SYMBOL_FLAGS_WEAK_IMPORT 201 BindSymbolFlagsNonWeakDefinition = 0x8u, // BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION 202 203 BindOpcodeMask = 0xF0u, // BIND_OPCODE_MASK 204 BindImmediateMask = 0x0Fu, // BIND_IMMEDIATE_MASK 205 BindOpcodeDone = 0x00u, // BIND_OPCODE_DONE 206 BindOpcodeSetDylibOrdinalImmediate = 0x10u, // BIND_OPCODE_SET_DYLIB_ORDINAL_IMM 207 BindOpcodeSetDylibOrdinalULEB = 0x20u, // BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB 208 BindOpcodeSetDylibSpecialImmediate = 0x30u, // BIND_OPCODE_SET_DYLIB_SPECIAL_IMM 209 BindOpcodeSetSymbolTrailingFlagsImmediate = 0x40u, // BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM 210 BindOpcodeSetTypeImmediate = 0x50u, // BIND_OPCODE_SET_TYPE_IMM 211 BindOpcodeSetAppendSLEB = 0x60u, // BIND_OPCODE_SET_ADDEND_SLEB 212 BindOpcodeSetSegmentAndOffsetULEB = 0x70u, // BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB 213 BindOpcodeAddAddressULEB = 0x80u, // BIND_OPCODE_ADD_ADDR_ULEB 214 BindOpcodeDoBind = 0x90u, // BIND_OPCODE_DO_BIND 215 BindOpcodeDoBindAddAddressULEB = 0xA0u, // BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB 216 BindOpcodeDoBindAddAddressImmediateScaled = 0xB0u, // BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED 217 BindOpcodeDoBindULEBTimesSkippingULEB = 0xC0u, // BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB 218 219 ExportSymbolFlagsKindMask = 0x03u, // EXPORT_SYMBOL_FLAGS_KIND_MASK 220 ExportSymbolFlagsKindRegular = 0x00u, // EXPORT_SYMBOL_FLAGS_KIND_REGULAR 221 ExportSymbolFlagsKindThreadLocal = 0x01u, // EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL 222 ExportSymbolFlagsWeakDefinition = 0x04u, // EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION 223 ExportSymbolFlagsIndirectDefinition = 0x08u, // EXPORT_SYMBOL_FLAGS_INDIRECT_DEFINITION 224 ExportSymbolFlagsHasSpecializations = 0x10u, // EXPORT_SYMBOL_FLAGS_HAS_SPECIALIZATIONS 225 226 227 // Constant masks for the "n_type" field in llvm::MachO::nlist and 228 // llvm::MachO::nlist_64 229 NlistMaskStab = 0xe0, // N_STAB 230 NlistMaskPrivateExternal = 0x10, // N_PEXT 231 NlistMaskType = 0x0e, // N_TYPE 232 NlistMaskExternal = 0x01, // N_EXT 233 234 // Constants for the "n_type & N_TYPE" llvm::MachO::nlist and 235 // llvm::MachO::nlist_64 236 NListTypeUndefined = 0x0u, // N_UNDF 237 NListTypeAbsolute = 0x2u, // N_ABS 238 NListTypeSection = 0xeu, // N_SECT 239 NListTypePreboundUndefined = 0xcu, // N_PBUD 240 NListTypeIndirect = 0xau, // N_INDR 241 242 // Constant masks for the "n_sect" field in llvm::MachO::nlist and 243 // llvm::MachO::nlist_64 244 NListSectionNoSection = 0u, // NO_SECT 245 NListSectionMaxSection = 0xffu, // MAX_SECT 246 247 NListDescWeakRef = 0x40u, 248 NListDescWeakDef = 0x80u, 249 250 // Constant values for the "n_type" field in llvm::MachO::nlist and 251 // llvm::MachO::nlist_64 when "(n_type & NlistMaskStab) != 0" 252 StabGlobalSymbol = 0x20u, // N_GSYM 253 StabFunctionName = 0x22u, // N_FNAME 254 StabFunction = 0x24u, // N_FUN 255 StabStaticSymbol = 0x26u, // N_STSYM 256 StabLocalCommon = 0x28u, // N_LCSYM 257 StabBeginSymbol = 0x2Eu, // N_BNSYM 258 StabSourceFileOptions = 0x3Cu, // N_OPT 259 StabRegisterSymbol = 0x40u, // N_RSYM 260 StabSourceLine = 0x44u, // N_SLINE 261 StabEndSymbol = 0x4Eu, // N_ENSYM 262 StabStructureType = 0x60u, // N_SSYM 263 StabSourceFileName = 0x64u, // N_SO 264 StabObjectFileName = 0x66u, // N_OSO 265 StabLocalSymbol = 0x80u, // N_LSYM 266 StabBeginIncludeFileName = 0x82u, // N_BINCL 267 StabIncludeFileName = 0x84u, // N_SOL 268 StabCompilerParameters = 0x86u, // N_PARAMS 269 StabCompilerVersion = 0x88u, // N_VERSION 270 StabCompilerOptLevel = 0x8Au, // N_OLEVEL 271 StabParameter = 0xA0u, // N_PSYM 272 StabEndIncludeFile = 0xA2u, // N_EINCL 273 StabAlternateEntry = 0xA4u, // N_ENTRY 274 StabLeftBracket = 0xC0u, // N_LBRAC 275 StabDeletedIncludeFile = 0xC2u, // N_EXCL 276 StabRightBracket = 0xE0u, // N_RBRAC 277 StabBeginCommon = 0xE2u, // N_BCOMM 278 StabEndCommon = 0xE4u, // N_ECOMM 279 StabEndCommonLocal = 0xE8u, // N_ECOML 280 StabLength = 0xFEu // N_LENG 281 282 }; 283 284 // Structs from <mach-o/loader.h> 285 286 struct mach_header { 287 uint32_t magic; 288 uint32_t cputype; 289 uint32_t cpusubtype; 290 uint32_t filetype; 291 uint32_t ncmds; 292 uint32_t sizeofcmds; 293 uint32_t flags; 294 }; 295 296 struct mach_header_64 { 297 uint32_t magic; 298 uint32_t cputype; 299 uint32_t cpusubtype; 300 uint32_t filetype; 301 uint32_t ncmds; 302 uint32_t sizeofcmds; 303 uint32_t flags; 304 uint32_t reserved; 305 }; 306 307 struct load_command { 308 uint32_t cmd; 309 uint32_t cmdsize; 310 }; 311 312 struct segment_command { 313 uint32_t cmd; 314 uint32_t cmdsize; 315 char segname[16]; 316 uint32_t vmaddr; 317 uint32_t vmsize; 318 uint32_t fileoff; 319 uint32_t filesize; 320 uint32_t maxprot; 321 uint32_t initprot; 322 uint32_t nsects; 323 uint32_t flags; 324 }; 325 326 struct segment_command_64 { 327 uint32_t cmd; 328 uint32_t cmdsize; 329 char segname[16]; 330 uint64_t vmaddr; 331 uint64_t vmsize; 332 uint64_t fileoff; 333 uint64_t filesize; 334 uint32_t maxprot; 335 uint32_t initprot; 336 uint32_t nsects; 337 uint32_t flags; 338 }; 339 340 struct section { 341 char sectname[16]; 342 char segname[16]; 343 uint32_t addr; 344 uint32_t size; 345 uint32_t offset; 346 uint32_t align; 347 uint32_t reloff; 348 uint32_t nreloc; 349 uint32_t flags; 350 uint32_t reserved1; 351 uint32_t reserved2; 352 }; 353 354 struct section_64 { 355 char sectname[16]; 356 char segname[16]; 357 uint64_t addr; 358 uint64_t size; 359 uint32_t offset; 360 uint32_t align; 361 uint32_t reloff; 362 uint32_t nreloc; 363 uint32_t flags; 364 uint32_t reserved1; 365 uint32_t reserved2; 366 uint32_t reserved3; 367 }; 368 369 struct fvmlib { 370 uint32_t name; 371 uint32_t minor_version; 372 uint32_t header_addr; 373 }; 374 375 struct fvmlib_command { 376 uint32_t cmd; 377 uint32_t cmdsize; 378 struct fvmlib fvmlib; 379 }; 380 381 struct dylib { 382 uint32_t name; 383 uint32_t timestamp; 384 uint32_t current_version; 385 uint32_t compatibility_version; 386 }; 387 388 struct dylib_command { 389 uint32_t cmd; 390 uint32_t cmdsize; 391 struct dylib dylib; 392 }; 393 394 struct sub_framework_command { 395 uint32_t cmd; 396 uint32_t cmdsize; 397 uint32_t umbrella; 398 }; 399 400 struct sub_client_command { 401 uint32_t cmd; 402 uint32_t cmdsize; 403 uint32_t client; 404 }; 405 406 struct sub_umbrella_command { 407 uint32_t cmd; 408 uint32_t cmdsize; 409 uint32_t sub_umbrella; 410 }; 411 412 struct sub_library_command { 413 uint32_t cmd; 414 uint32_t cmdsize; 415 uint32_t sub_library; 416 }; 417 418 struct prebound_dylib_command { 419 uint32_t cmd; 420 uint32_t cmdsize; 421 uint32_t name; 422 uint32_t nmodules; 423 uint32_t linked_modules; 424 }; 425 426 struct dylinker_command { 427 uint32_t cmd; 428 uint32_t cmdsize; 429 uint32_t name; 430 }; 431 432 struct thread_command { 433 uint32_t cmd; 434 uint32_t cmdsize; 435 }; 436 437 struct routines_command { 438 uint32_t cmd; 439 uint32_t cmdsize; 440 uint32_t init_address; 441 uint32_t init_module; 442 uint32_t reserved1; 443 uint32_t reserved2; 444 uint32_t reserved3; 445 uint32_t reserved4; 446 uint32_t reserved5; 447 uint32_t reserved6; 448 }; 449 450 struct routines_command_64 { 451 uint32_t cmd; 452 uint32_t cmdsize; 453 uint64_t init_address; 454 uint64_t init_module; 455 uint64_t reserved1; 456 uint64_t reserved2; 457 uint64_t reserved3; 458 uint64_t reserved4; 459 uint64_t reserved5; 460 uint64_t reserved6; 461 }; 462 463 struct symtab_command { 464 uint32_t cmd; 465 uint32_t cmdsize; 466 uint32_t symoff; 467 uint32_t nsyms; 468 uint32_t stroff; 469 uint32_t strsize; 470 }; 471 472 struct dysymtab_command { 473 uint32_t cmd; 474 uint32_t cmdsize; 475 uint32_t ilocalsym; 476 uint32_t nlocalsym; 477 uint32_t iextdefsym; 478 uint32_t nextdefsym; 479 uint32_t iundefsym; 480 uint32_t nundefsym; 481 uint32_t tocoff; 482 uint32_t ntoc; 483 uint32_t modtaboff; 484 uint32_t nmodtab; 485 uint32_t extrefsymoff; 486 uint32_t nextrefsyms; 487 uint32_t indirectsymoff; 488 uint32_t nindirectsyms; 489 uint32_t extreloff; 490 uint32_t nextrel; 491 uint32_t locreloff; 492 uint32_t nlocrel; 493 }; 494 495 struct dylib_table_of_contents { 496 uint32_t symbol_index; 497 uint32_t module_index; 498 }; 499 500 struct dylib_module { 501 uint32_t module_name; 502 uint32_t iextdefsym; 503 uint32_t nextdefsym; 504 uint32_t irefsym; 505 uint32_t nrefsym; 506 uint32_t ilocalsym; 507 uint32_t nlocalsym; 508 uint32_t iextrel; 509 uint32_t nextrel; 510 uint32_t iinit_iterm; 511 uint32_t ninit_nterm; 512 uint32_t objc_module_info_addr; 513 uint32_t objc_module_info_size; 514 }; 515 516 struct dylib_module_64 { 517 uint32_t module_name; 518 uint32_t iextdefsym; 519 uint32_t nextdefsym; 520 uint32_t irefsym; 521 uint32_t nrefsym; 522 uint32_t ilocalsym; 523 uint32_t nlocalsym; 524 uint32_t iextrel; 525 uint32_t nextrel; 526 uint32_t iinit_iterm; 527 uint32_t ninit_nterm; 528 uint32_t objc_module_info_size; 529 uint64_t objc_module_info_addr; 530 }; 531 532 struct dylib_reference { 533 uint32_t isym:24, 534 flags:8; 535 }; 536 537 538 struct twolevel_hints_command { 539 uint32_t cmd; 540 uint32_t cmdsize; 541 uint32_t offset; 542 uint32_t nhints; 543 }; 544 545 struct twolevel_hint { 546 uint32_t isub_image:8, 547 itoc:24; 548 }; 549 550 struct prebind_cksum_command { 551 uint32_t cmd; 552 uint32_t cmdsize; 553 uint32_t cksum; 554 }; 555 556 struct uuid_command { 557 uint32_t cmd; 558 uint32_t cmdsize; 559 uint8_t uuid[16]; 560 }; 561 562 struct rpath_command { 563 uint32_t cmd; 564 uint32_t cmdsize; 565 uint32_t path; 566 }; 567 568 struct linkedit_data_command { 569 uint32_t cmd; 570 uint32_t cmdsize; 571 uint32_t dataoff; 572 uint32_t datasize; 573 }; 574 575 struct encryption_info_command { 576 uint32_t cmd; 577 uint32_t cmdsize; 578 uint32_t cryptoff; 579 uint32_t cryptsize; 580 uint32_t cryptid; 581 }; 582 583 struct version_min_command { 584 uint32_t cmd; 585 uint32_t cmdsize; 586 uint32_t version; 587 uint32_t reserved; 588 }; 589 590 struct dyld_info_command { 591 uint32_t cmd; 592 uint32_t cmdsize; 593 uint32_t rebase_off; 594 uint32_t rebase_size; 595 uint32_t bind_off; 596 uint32_t bind_size; 597 uint32_t weak_bind_off; 598 uint32_t weak_bind_size; 599 uint32_t lazy_bind_off; 600 uint32_t lazy_bind_size; 601 uint32_t export_off; 602 uint32_t export_size; 603 }; 604 605 struct symseg_command { 606 uint32_t cmd; 607 uint32_t cmdsize; 608 uint32_t offset; 609 uint32_t size; 610 }; 611 612 struct ident_command { 613 uint32_t cmd; 614 uint32_t cmdsize; 615 }; 616 617 struct fvmfile_command { 618 uint32_t cmd; 619 uint32_t cmdsize; 620 uint32_t name; 621 uint32_t header_addr; 622 }; 623 624 625 // Structs from <mach-o/fat.h> 626 struct fat_header { 627 uint32_t magic; 628 uint32_t nfat_arch; 629 }; 630 631 struct fat_arch { 632 uint32_t cputype; 633 uint32_t cpusubtype; 634 uint32_t offset; 635 uint32_t size; 636 uint32_t align; 637 }; 638 639 // Structs from <mach-o/fat.h> 640 struct nlist { 641 uint32_t n_strx; 642 uint8_t n_type; 643 uint8_t n_sect; 644 int16_t n_desc; 645 uint32_t n_value; 646 }; 647 648 struct nlist_64 { 649 uint32_t n_strx; 650 uint8_t n_type; 651 uint8_t n_sect; 652 uint16_t n_desc; 653 uint64_t n_value; 654 }; 655 656 // Get/Set functions from <mach-o/nlist.h> 657 GET_LIBRARY_ORDINAL(uint16_t n_desc)658 static inline uint16_t GET_LIBRARY_ORDINAL(uint16_t n_desc) 659 { 660 return (((n_desc) >> 8u) & 0xffu); 661 } 662 SET_LIBRARY_ORDINAL(uint16_t & n_desc,uint8_t ordinal)663 static inline void SET_LIBRARY_ORDINAL(uint16_t &n_desc, uint8_t ordinal) 664 { 665 n_desc = (((n_desc) & 0x00ff) | (((ordinal) & 0xff) << 8)); 666 } 667 GET_COMM_ALIGN(uint16_t n_desc)668 static inline uint8_t GET_COMM_ALIGN (uint16_t n_desc) 669 { 670 return (n_desc >> 8u) & 0x0fu; 671 } 672 SET_COMM_ALIGN(uint16_t & n_desc,uint8_t align)673 static inline void SET_COMM_ALIGN (uint16_t &n_desc, uint8_t align) 674 { 675 n_desc = ((n_desc & 0xf0ffu) | ((align & 0x0fu) << 8u)); 676 } 677 678 // Enums from <mach/machine.h> 679 enum { 680 // Capability bits used in the definition of cpu_type. 681 CPUArchMask = 0xff000000, // Mask for architecture bits 682 CPUArchABI64 = 0x01000000, // 64 bit ABI 683 684 // Constants for the cputype field. 685 CPUTypeI386 = 7, 686 CPUTypeX86_64 = CPUTypeI386 | CPUArchABI64, 687 CPUTypeARM = 12, 688 CPUTypeSPARC = 14, 689 CPUTypePowerPC = 18, 690 CPUTypePowerPC64 = CPUTypePowerPC | CPUArchABI64, 691 692 693 // Constants for the cpusubtype field. 694 695 // X86 696 CPUSubType_I386_ALL = 3, 697 CPUSubType_X86_64_ALL = 3, 698 699 // ARM 700 CPUSubType_ARM_ALL = 0, 701 CPUSubType_ARM_V4T = 5, 702 CPUSubType_ARM_V5 = 7, 703 CPUSubType_ARM_V6 = 6, 704 CPUSubType_ARM_V7 = 9, 705 706 // PowerPC 707 CPUSubType_POWERPC_ALL = 0, 708 709 CPUSubType_SPARC_ALL = 0 710 }; 711 } // end namespace MachO 712 } // end namespace llvm 713 714 #endif 715