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 21 namespace llvm { 22 namespace MachO { 23 // Enums from <mach-o/loader.h> 24 enum : 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 FAT_MAGIC_64 = 0xCAFEBABFu, 34 FAT_CIGAM_64 = 0xBFBAFECAu 35 }; 36 37 enum HeaderFileType { 38 // Constants for the "filetype" field in llvm::MachO::mach_header and 39 // llvm::MachO::mach_header_64 40 MH_OBJECT = 0x1u, 41 MH_EXECUTE = 0x2u, 42 MH_FVMLIB = 0x3u, 43 MH_CORE = 0x4u, 44 MH_PRELOAD = 0x5u, 45 MH_DYLIB = 0x6u, 46 MH_DYLINKER = 0x7u, 47 MH_BUNDLE = 0x8u, 48 MH_DYLIB_STUB = 0x9u, 49 MH_DSYM = 0xAu, 50 MH_KEXT_BUNDLE = 0xBu 51 }; 52 53 enum { 54 // Constant bits for the "flags" field in llvm::MachO::mach_header and 55 // llvm::MachO::mach_header_64 56 MH_NOUNDEFS = 0x00000001u, 57 MH_INCRLINK = 0x00000002u, 58 MH_DYLDLINK = 0x00000004u, 59 MH_BINDATLOAD = 0x00000008u, 60 MH_PREBOUND = 0x00000010u, 61 MH_SPLIT_SEGS = 0x00000020u, 62 MH_LAZY_INIT = 0x00000040u, 63 MH_TWOLEVEL = 0x00000080u, 64 MH_FORCE_FLAT = 0x00000100u, 65 MH_NOMULTIDEFS = 0x00000200u, 66 MH_NOFIXPREBINDING = 0x00000400u, 67 MH_PREBINDABLE = 0x00000800u, 68 MH_ALLMODSBOUND = 0x00001000u, 69 MH_SUBSECTIONS_VIA_SYMBOLS = 0x00002000u, 70 MH_CANONICAL = 0x00004000u, 71 MH_WEAK_DEFINES = 0x00008000u, 72 MH_BINDS_TO_WEAK = 0x00010000u, 73 MH_ALLOW_STACK_EXECUTION = 0x00020000u, 74 MH_ROOT_SAFE = 0x00040000u, 75 MH_SETUID_SAFE = 0x00080000u, 76 MH_NO_REEXPORTED_DYLIBS = 0x00100000u, 77 MH_PIE = 0x00200000u, 78 MH_DEAD_STRIPPABLE_DYLIB = 0x00400000u, 79 MH_HAS_TLV_DESCRIPTORS = 0x00800000u, 80 MH_NO_HEAP_EXECUTION = 0x01000000u, 81 MH_APP_EXTENSION_SAFE = 0x02000000u 82 }; 83 84 enum : uint32_t { 85 // Flags for the "cmd" field in llvm::MachO::load_command 86 LC_REQ_DYLD = 0x80000000u 87 }; 88 89 #define HANDLE_LOAD_COMMAND(LCName, LCValue, LCStruct) \ 90 LCName = LCValue, 91 92 enum LoadCommandType : uint32_t { 93 #include "llvm/Support/MachO.def" 94 }; 95 96 #undef HANDLE_LOAD_COMMAND 97 98 enum : uint32_t { 99 // Constant bits for the "flags" field in llvm::MachO::segment_command 100 SG_HIGHVM = 0x1u, 101 SG_FVMLIB = 0x2u, 102 SG_NORELOC = 0x4u, 103 SG_PROTECTED_VERSION_1 = 0x8u, 104 105 // Constant masks for the "flags" field in llvm::MachO::section and 106 // llvm::MachO::section_64 107 SECTION_TYPE = 0x000000ffu, // SECTION_TYPE 108 SECTION_ATTRIBUTES = 0xffffff00u, // SECTION_ATTRIBUTES 109 SECTION_ATTRIBUTES_USR = 0xff000000u, // SECTION_ATTRIBUTES_USR 110 SECTION_ATTRIBUTES_SYS = 0x00ffff00u // SECTION_ATTRIBUTES_SYS 111 }; 112 113 /// These are the section type and attributes fields. A MachO section can 114 /// have only one Type, but can have any of the attributes specified. 115 enum SectionType : uint32_t { 116 // Constant masks for the "flags[7:0]" field in llvm::MachO::section and 117 // llvm::MachO::section_64 (mask "flags" with SECTION_TYPE) 118 119 /// S_REGULAR - Regular section. 120 S_REGULAR = 0x00u, 121 /// S_ZEROFILL - Zero fill on demand section. 122 S_ZEROFILL = 0x01u, 123 /// S_CSTRING_LITERALS - Section with literal C strings. 124 S_CSTRING_LITERALS = 0x02u, 125 /// S_4BYTE_LITERALS - Section with 4 byte literals. 126 S_4BYTE_LITERALS = 0x03u, 127 /// S_8BYTE_LITERALS - Section with 8 byte literals. 128 S_8BYTE_LITERALS = 0x04u, 129 /// S_LITERAL_POINTERS - Section with pointers to literals. 130 S_LITERAL_POINTERS = 0x05u, 131 /// S_NON_LAZY_SYMBOL_POINTERS - Section with non-lazy symbol pointers. 132 S_NON_LAZY_SYMBOL_POINTERS = 0x06u, 133 /// S_LAZY_SYMBOL_POINTERS - Section with lazy symbol pointers. 134 S_LAZY_SYMBOL_POINTERS = 0x07u, 135 /// S_SYMBOL_STUBS - Section with symbol stubs, byte size of stub in 136 /// the Reserved2 field. 137 S_SYMBOL_STUBS = 0x08u, 138 /// S_MOD_INIT_FUNC_POINTERS - Section with only function pointers for 139 /// initialization. 140 S_MOD_INIT_FUNC_POINTERS = 0x09u, 141 /// S_MOD_TERM_FUNC_POINTERS - Section with only function pointers for 142 /// termination. 143 S_MOD_TERM_FUNC_POINTERS = 0x0au, 144 /// S_COALESCED - Section contains symbols that are to be coalesced. 145 S_COALESCED = 0x0bu, 146 /// S_GB_ZEROFILL - Zero fill on demand section (that can be larger than 4 147 /// gigabytes). 148 S_GB_ZEROFILL = 0x0cu, 149 /// S_INTERPOSING - Section with only pairs of function pointers for 150 /// interposing. 151 S_INTERPOSING = 0x0du, 152 /// S_16BYTE_LITERALS - Section with only 16 byte literals. 153 S_16BYTE_LITERALS = 0x0eu, 154 /// S_DTRACE_DOF - Section contains DTrace Object Format. 155 S_DTRACE_DOF = 0x0fu, 156 /// S_LAZY_DYLIB_SYMBOL_POINTERS - Section with lazy symbol pointers to 157 /// lazy loaded dylibs. 158 S_LAZY_DYLIB_SYMBOL_POINTERS = 0x10u, 159 /// S_THREAD_LOCAL_REGULAR - Thread local data section. 160 S_THREAD_LOCAL_REGULAR = 0x11u, 161 /// S_THREAD_LOCAL_ZEROFILL - Thread local zerofill section. 162 S_THREAD_LOCAL_ZEROFILL = 0x12u, 163 /// S_THREAD_LOCAL_VARIABLES - Section with thread local variable 164 /// structure data. 165 S_THREAD_LOCAL_VARIABLES = 0x13u, 166 /// S_THREAD_LOCAL_VARIABLE_POINTERS - Section with pointers to thread 167 /// local structures. 168 S_THREAD_LOCAL_VARIABLE_POINTERS = 0x14u, 169 /// S_THREAD_LOCAL_INIT_FUNCTION_POINTERS - Section with thread local 170 /// variable initialization pointers to functions. 171 S_THREAD_LOCAL_INIT_FUNCTION_POINTERS = 0x15u, 172 173 LAST_KNOWN_SECTION_TYPE = S_THREAD_LOCAL_INIT_FUNCTION_POINTERS 174 }; 175 176 enum : uint32_t { 177 // Constant masks for the "flags[31:24]" field in llvm::MachO::section and 178 // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_USR) 179 180 /// S_ATTR_PURE_INSTRUCTIONS - Section contains only true machine 181 /// instructions. 182 S_ATTR_PURE_INSTRUCTIONS = 0x80000000u, 183 /// S_ATTR_NO_TOC - Section contains coalesced symbols that are not to be 184 /// in a ranlib table of contents. 185 S_ATTR_NO_TOC = 0x40000000u, 186 /// S_ATTR_STRIP_STATIC_SYMS - Ok to strip static symbols in this section 187 /// in files with the MY_DYLDLINK flag. 188 S_ATTR_STRIP_STATIC_SYMS = 0x20000000u, 189 /// S_ATTR_NO_DEAD_STRIP - No dead stripping. 190 S_ATTR_NO_DEAD_STRIP = 0x10000000u, 191 /// S_ATTR_LIVE_SUPPORT - Blocks are live if they reference live blocks. 192 S_ATTR_LIVE_SUPPORT = 0x08000000u, 193 /// S_ATTR_SELF_MODIFYING_CODE - Used with i386 code stubs written on by 194 /// dyld. 195 S_ATTR_SELF_MODIFYING_CODE = 0x04000000u, 196 /// S_ATTR_DEBUG - A debug section. 197 S_ATTR_DEBUG = 0x02000000u, 198 199 // Constant masks for the "flags[23:8]" field in llvm::MachO::section and 200 // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_SYS) 201 202 /// S_ATTR_SOME_INSTRUCTIONS - Section contains some machine instructions. 203 S_ATTR_SOME_INSTRUCTIONS = 0x00000400u, 204 /// S_ATTR_EXT_RELOC - Section has external relocation entries. 205 S_ATTR_EXT_RELOC = 0x00000200u, 206 /// S_ATTR_LOC_RELOC - Section has local relocation entries. 207 S_ATTR_LOC_RELOC = 0x00000100u, 208 209 // Constant masks for the value of an indirect symbol in an indirect 210 // symbol table 211 INDIRECT_SYMBOL_LOCAL = 0x80000000u, 212 INDIRECT_SYMBOL_ABS = 0x40000000u 213 }; 214 215 enum DataRegionType { 216 // Constants for the "kind" field in a data_in_code_entry structure 217 DICE_KIND_DATA = 1u, 218 DICE_KIND_JUMP_TABLE8 = 2u, 219 DICE_KIND_JUMP_TABLE16 = 3u, 220 DICE_KIND_JUMP_TABLE32 = 4u, 221 DICE_KIND_ABS_JUMP_TABLE32 = 5u 222 }; 223 224 enum RebaseType { 225 REBASE_TYPE_POINTER = 1u, 226 REBASE_TYPE_TEXT_ABSOLUTE32 = 2u, 227 REBASE_TYPE_TEXT_PCREL32 = 3u 228 }; 229 230 enum { 231 REBASE_OPCODE_MASK = 0xF0u, 232 REBASE_IMMEDIATE_MASK = 0x0Fu 233 }; 234 235 enum RebaseOpcode { 236 REBASE_OPCODE_DONE = 0x00u, 237 REBASE_OPCODE_SET_TYPE_IMM = 0x10u, 238 REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB = 0x20u, 239 REBASE_OPCODE_ADD_ADDR_ULEB = 0x30u, 240 REBASE_OPCODE_ADD_ADDR_IMM_SCALED = 0x40u, 241 REBASE_OPCODE_DO_REBASE_IMM_TIMES = 0x50u, 242 REBASE_OPCODE_DO_REBASE_ULEB_TIMES = 0x60u, 243 REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB = 0x70u, 244 REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB = 0x80u 245 }; 246 247 enum BindType { 248 BIND_TYPE_POINTER = 1u, 249 BIND_TYPE_TEXT_ABSOLUTE32 = 2u, 250 BIND_TYPE_TEXT_PCREL32 = 3u 251 }; 252 253 enum BindSpecialDylib { 254 BIND_SPECIAL_DYLIB_SELF = 0, 255 BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE = -1, 256 BIND_SPECIAL_DYLIB_FLAT_LOOKUP = -2 257 }; 258 259 enum { 260 BIND_SYMBOL_FLAGS_WEAK_IMPORT = 0x1u, 261 BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION = 0x8u, 262 263 BIND_OPCODE_MASK = 0xF0u, 264 BIND_IMMEDIATE_MASK = 0x0Fu 265 }; 266 267 enum BindOpcode { 268 BIND_OPCODE_DONE = 0x00u, 269 BIND_OPCODE_SET_DYLIB_ORDINAL_IMM = 0x10u, 270 BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB = 0x20u, 271 BIND_OPCODE_SET_DYLIB_SPECIAL_IMM = 0x30u, 272 BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM = 0x40u, 273 BIND_OPCODE_SET_TYPE_IMM = 0x50u, 274 BIND_OPCODE_SET_ADDEND_SLEB = 0x60u, 275 BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB = 0x70u, 276 BIND_OPCODE_ADD_ADDR_ULEB = 0x80u, 277 BIND_OPCODE_DO_BIND = 0x90u, 278 BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB = 0xA0u, 279 BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED = 0xB0u, 280 BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB = 0xC0u 281 }; 282 283 enum { 284 EXPORT_SYMBOL_FLAGS_KIND_MASK = 0x03u, 285 EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION = 0x04u, 286 EXPORT_SYMBOL_FLAGS_REEXPORT = 0x08u, 287 EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER = 0x10u 288 }; 289 290 enum ExportSymbolKind { 291 EXPORT_SYMBOL_FLAGS_KIND_REGULAR = 0x00u, 292 EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL = 0x01u, 293 EXPORT_SYMBOL_FLAGS_KIND_ABSOLUTE = 0x02u 294 }; 295 296 enum { 297 // Constant masks for the "n_type" field in llvm::MachO::nlist and 298 // llvm::MachO::nlist_64 299 N_STAB = 0xe0, 300 N_PEXT = 0x10, 301 N_TYPE = 0x0e, 302 N_EXT = 0x01 303 }; 304 305 enum NListType { 306 // Constants for the "n_type & N_TYPE" llvm::MachO::nlist and 307 // llvm::MachO::nlist_64 308 N_UNDF = 0x0u, 309 N_ABS = 0x2u, 310 N_SECT = 0xeu, 311 N_PBUD = 0xcu, 312 N_INDR = 0xau 313 }; 314 315 enum SectionOrdinal { 316 // Constants for the "n_sect" field in llvm::MachO::nlist and 317 // llvm::MachO::nlist_64 318 NO_SECT = 0u, 319 MAX_SECT = 0xffu 320 }; 321 322 enum { 323 // Constant masks for the "n_desc" field in llvm::MachO::nlist and 324 // llvm::MachO::nlist_64 325 // The low 3 bits are the for the REFERENCE_TYPE. 326 REFERENCE_TYPE = 0x7, 327 REFERENCE_FLAG_UNDEFINED_NON_LAZY = 0, 328 REFERENCE_FLAG_UNDEFINED_LAZY = 1, 329 REFERENCE_FLAG_DEFINED = 2, 330 REFERENCE_FLAG_PRIVATE_DEFINED = 3, 331 REFERENCE_FLAG_PRIVATE_UNDEFINED_NON_LAZY = 4, 332 REFERENCE_FLAG_PRIVATE_UNDEFINED_LAZY = 5, 333 // Flag bits (some overlap with the library ordinal bits). 334 N_ARM_THUMB_DEF = 0x0008u, 335 REFERENCED_DYNAMICALLY = 0x0010u, 336 N_NO_DEAD_STRIP = 0x0020u, 337 N_WEAK_REF = 0x0040u, 338 N_WEAK_DEF = 0x0080u, 339 N_SYMBOL_RESOLVER = 0x0100u, 340 N_ALT_ENTRY = 0x0200u, 341 // For undefined symbols coming from libraries, see GET_LIBRARY_ORDINAL() 342 // as these are in the top 8 bits. 343 SELF_LIBRARY_ORDINAL = 0x0, 344 MAX_LIBRARY_ORDINAL = 0xfd, 345 DYNAMIC_LOOKUP_ORDINAL = 0xfe, 346 EXECUTABLE_ORDINAL = 0xff 347 }; 348 349 enum StabType { 350 // Constant values for the "n_type" field in llvm::MachO::nlist and 351 // llvm::MachO::nlist_64 when "(n_type & N_STAB) != 0" 352 N_GSYM = 0x20u, 353 N_FNAME = 0x22u, 354 N_FUN = 0x24u, 355 N_STSYM = 0x26u, 356 N_LCSYM = 0x28u, 357 N_BNSYM = 0x2Eu, 358 N_PC = 0x30u, 359 N_AST = 0x32u, 360 N_OPT = 0x3Cu, 361 N_RSYM = 0x40u, 362 N_SLINE = 0x44u, 363 N_ENSYM = 0x4Eu, 364 N_SSYM = 0x60u, 365 N_SO = 0x64u, 366 N_OSO = 0x66u, 367 N_LSYM = 0x80u, 368 N_BINCL = 0x82u, 369 N_SOL = 0x84u, 370 N_PARAMS = 0x86u, 371 N_VERSION = 0x88u, 372 N_OLEVEL = 0x8Au, 373 N_PSYM = 0xA0u, 374 N_EINCL = 0xA2u, 375 N_ENTRY = 0xA4u, 376 N_LBRAC = 0xC0u, 377 N_EXCL = 0xC2u, 378 N_RBRAC = 0xE0u, 379 N_BCOMM = 0xE2u, 380 N_ECOMM = 0xE4u, 381 N_ECOML = 0xE8u, 382 N_LENG = 0xFEu 383 }; 384 385 enum : uint32_t { 386 // Constant values for the r_symbolnum field in an 387 // llvm::MachO::relocation_info structure when r_extern is 0. 388 R_ABS = 0, 389 390 // Constant bits for the r_address field in an 391 // llvm::MachO::relocation_info structure. 392 R_SCATTERED = 0x80000000 393 }; 394 395 enum RelocationInfoType { 396 // Constant values for the r_type field in an 397 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 398 // structure. 399 GENERIC_RELOC_VANILLA = 0, 400 GENERIC_RELOC_PAIR = 1, 401 GENERIC_RELOC_SECTDIFF = 2, 402 GENERIC_RELOC_PB_LA_PTR = 3, 403 GENERIC_RELOC_LOCAL_SECTDIFF = 4, 404 GENERIC_RELOC_TLV = 5, 405 406 // Constant values for the r_type field in a PowerPC architecture 407 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 408 // structure. 409 PPC_RELOC_VANILLA = GENERIC_RELOC_VANILLA, 410 PPC_RELOC_PAIR = GENERIC_RELOC_PAIR, 411 PPC_RELOC_BR14 = 2, 412 PPC_RELOC_BR24 = 3, 413 PPC_RELOC_HI16 = 4, 414 PPC_RELOC_LO16 = 5, 415 PPC_RELOC_HA16 = 6, 416 PPC_RELOC_LO14 = 7, 417 PPC_RELOC_SECTDIFF = 8, 418 PPC_RELOC_PB_LA_PTR = 9, 419 PPC_RELOC_HI16_SECTDIFF = 10, 420 PPC_RELOC_LO16_SECTDIFF = 11, 421 PPC_RELOC_HA16_SECTDIFF = 12, 422 PPC_RELOC_JBSR = 13, 423 PPC_RELOC_LO14_SECTDIFF = 14, 424 PPC_RELOC_LOCAL_SECTDIFF = 15, 425 426 // Constant values for the r_type field in an ARM architecture 427 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 428 // structure. 429 ARM_RELOC_VANILLA = GENERIC_RELOC_VANILLA, 430 ARM_RELOC_PAIR = GENERIC_RELOC_PAIR, 431 ARM_RELOC_SECTDIFF = GENERIC_RELOC_SECTDIFF, 432 ARM_RELOC_LOCAL_SECTDIFF = 3, 433 ARM_RELOC_PB_LA_PTR = 4, 434 ARM_RELOC_BR24 = 5, 435 ARM_THUMB_RELOC_BR22 = 6, 436 ARM_THUMB_32BIT_BRANCH = 7, // obsolete 437 ARM_RELOC_HALF = 8, 438 ARM_RELOC_HALF_SECTDIFF = 9, 439 440 // Constant values for the r_type field in an ARM64 architecture 441 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 442 // structure. 443 444 // For pointers. 445 ARM64_RELOC_UNSIGNED = 0, 446 // Must be followed by an ARM64_RELOC_UNSIGNED 447 ARM64_RELOC_SUBTRACTOR = 1, 448 // A B/BL instruction with 26-bit displacement. 449 ARM64_RELOC_BRANCH26 = 2, 450 // PC-rel distance to page of target. 451 ARM64_RELOC_PAGE21 = 3, 452 // Offset within page, scaled by r_length. 453 ARM64_RELOC_PAGEOFF12 = 4, 454 // PC-rel distance to page of GOT slot. 455 ARM64_RELOC_GOT_LOAD_PAGE21 = 5, 456 // Offset within page of GOT slot, scaled by r_length. 457 ARM64_RELOC_GOT_LOAD_PAGEOFF12 = 6, 458 // For pointers to GOT slots. 459 ARM64_RELOC_POINTER_TO_GOT = 7, 460 // PC-rel distance to page of TLVP slot. 461 ARM64_RELOC_TLVP_LOAD_PAGE21 = 8, 462 // Offset within page of TLVP slot, scaled by r_length. 463 ARM64_RELOC_TLVP_LOAD_PAGEOFF12 = 9, 464 // Must be followed by ARM64_RELOC_PAGE21 or ARM64_RELOC_PAGEOFF12. 465 ARM64_RELOC_ADDEND = 10, 466 467 // Constant values for the r_type field in an x86_64 architecture 468 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 469 // structure 470 X86_64_RELOC_UNSIGNED = 0, 471 X86_64_RELOC_SIGNED = 1, 472 X86_64_RELOC_BRANCH = 2, 473 X86_64_RELOC_GOT_LOAD = 3, 474 X86_64_RELOC_GOT = 4, 475 X86_64_RELOC_SUBTRACTOR = 5, 476 X86_64_RELOC_SIGNED_1 = 6, 477 X86_64_RELOC_SIGNED_2 = 7, 478 X86_64_RELOC_SIGNED_4 = 8, 479 X86_64_RELOC_TLV = 9 480 }; 481 482 // Values for segment_command.initprot. 483 // From <mach/vm_prot.h> 484 enum { 485 VM_PROT_READ = 0x1, 486 VM_PROT_WRITE = 0x2, 487 VM_PROT_EXECUTE = 0x4 488 }; 489 490 // Structs from <mach-o/loader.h> 491 492 struct mach_header { 493 uint32_t magic; 494 uint32_t cputype; 495 uint32_t cpusubtype; 496 uint32_t filetype; 497 uint32_t ncmds; 498 uint32_t sizeofcmds; 499 uint32_t flags; 500 }; 501 502 struct mach_header_64 { 503 uint32_t magic; 504 uint32_t cputype; 505 uint32_t cpusubtype; 506 uint32_t filetype; 507 uint32_t ncmds; 508 uint32_t sizeofcmds; 509 uint32_t flags; 510 uint32_t reserved; 511 }; 512 513 struct load_command { 514 uint32_t cmd; 515 uint32_t cmdsize; 516 }; 517 518 struct segment_command { 519 uint32_t cmd; 520 uint32_t cmdsize; 521 char segname[16]; 522 uint32_t vmaddr; 523 uint32_t vmsize; 524 uint32_t fileoff; 525 uint32_t filesize; 526 uint32_t maxprot; 527 uint32_t initprot; 528 uint32_t nsects; 529 uint32_t flags; 530 }; 531 532 struct segment_command_64 { 533 uint32_t cmd; 534 uint32_t cmdsize; 535 char segname[16]; 536 uint64_t vmaddr; 537 uint64_t vmsize; 538 uint64_t fileoff; 539 uint64_t filesize; 540 uint32_t maxprot; 541 uint32_t initprot; 542 uint32_t nsects; 543 uint32_t flags; 544 }; 545 546 struct section { 547 char sectname[16]; 548 char segname[16]; 549 uint32_t addr; 550 uint32_t size; 551 uint32_t offset; 552 uint32_t align; 553 uint32_t reloff; 554 uint32_t nreloc; 555 uint32_t flags; 556 uint32_t reserved1; 557 uint32_t reserved2; 558 }; 559 560 struct section_64 { 561 char sectname[16]; 562 char segname[16]; 563 uint64_t addr; 564 uint64_t size; 565 uint32_t offset; 566 uint32_t align; 567 uint32_t reloff; 568 uint32_t nreloc; 569 uint32_t flags; 570 uint32_t reserved1; 571 uint32_t reserved2; 572 uint32_t reserved3; 573 }; 574 575 struct fvmlib { 576 uint32_t name; 577 uint32_t minor_version; 578 uint32_t header_addr; 579 }; 580 581 struct fvmlib_command { 582 uint32_t cmd; 583 uint32_t cmdsize; 584 struct fvmlib fvmlib; 585 }; 586 587 struct dylib { 588 uint32_t name; 589 uint32_t timestamp; 590 uint32_t current_version; 591 uint32_t compatibility_version; 592 }; 593 594 struct dylib_command { 595 uint32_t cmd; 596 uint32_t cmdsize; 597 struct dylib dylib; 598 }; 599 600 struct sub_framework_command { 601 uint32_t cmd; 602 uint32_t cmdsize; 603 uint32_t umbrella; 604 }; 605 606 struct sub_client_command { 607 uint32_t cmd; 608 uint32_t cmdsize; 609 uint32_t client; 610 }; 611 612 struct sub_umbrella_command { 613 uint32_t cmd; 614 uint32_t cmdsize; 615 uint32_t sub_umbrella; 616 }; 617 618 struct sub_library_command { 619 uint32_t cmd; 620 uint32_t cmdsize; 621 uint32_t sub_library; 622 }; 623 624 struct prebound_dylib_command { 625 uint32_t cmd; 626 uint32_t cmdsize; 627 uint32_t name; 628 uint32_t nmodules; 629 uint32_t linked_modules; 630 }; 631 632 struct dylinker_command { 633 uint32_t cmd; 634 uint32_t cmdsize; 635 uint32_t name; 636 }; 637 638 struct thread_command { 639 uint32_t cmd; 640 uint32_t cmdsize; 641 }; 642 643 struct routines_command { 644 uint32_t cmd; 645 uint32_t cmdsize; 646 uint32_t init_address; 647 uint32_t init_module; 648 uint32_t reserved1; 649 uint32_t reserved2; 650 uint32_t reserved3; 651 uint32_t reserved4; 652 uint32_t reserved5; 653 uint32_t reserved6; 654 }; 655 656 struct routines_command_64 { 657 uint32_t cmd; 658 uint32_t cmdsize; 659 uint64_t init_address; 660 uint64_t init_module; 661 uint64_t reserved1; 662 uint64_t reserved2; 663 uint64_t reserved3; 664 uint64_t reserved4; 665 uint64_t reserved5; 666 uint64_t reserved6; 667 }; 668 669 struct symtab_command { 670 uint32_t cmd; 671 uint32_t cmdsize; 672 uint32_t symoff; 673 uint32_t nsyms; 674 uint32_t stroff; 675 uint32_t strsize; 676 }; 677 678 struct dysymtab_command { 679 uint32_t cmd; 680 uint32_t cmdsize; 681 uint32_t ilocalsym; 682 uint32_t nlocalsym; 683 uint32_t iextdefsym; 684 uint32_t nextdefsym; 685 uint32_t iundefsym; 686 uint32_t nundefsym; 687 uint32_t tocoff; 688 uint32_t ntoc; 689 uint32_t modtaboff; 690 uint32_t nmodtab; 691 uint32_t extrefsymoff; 692 uint32_t nextrefsyms; 693 uint32_t indirectsymoff; 694 uint32_t nindirectsyms; 695 uint32_t extreloff; 696 uint32_t nextrel; 697 uint32_t locreloff; 698 uint32_t nlocrel; 699 }; 700 701 struct dylib_table_of_contents { 702 uint32_t symbol_index; 703 uint32_t module_index; 704 }; 705 706 struct dylib_module { 707 uint32_t module_name; 708 uint32_t iextdefsym; 709 uint32_t nextdefsym; 710 uint32_t irefsym; 711 uint32_t nrefsym; 712 uint32_t ilocalsym; 713 uint32_t nlocalsym; 714 uint32_t iextrel; 715 uint32_t nextrel; 716 uint32_t iinit_iterm; 717 uint32_t ninit_nterm; 718 uint32_t objc_module_info_addr; 719 uint32_t objc_module_info_size; 720 }; 721 722 struct dylib_module_64 { 723 uint32_t module_name; 724 uint32_t iextdefsym; 725 uint32_t nextdefsym; 726 uint32_t irefsym; 727 uint32_t nrefsym; 728 uint32_t ilocalsym; 729 uint32_t nlocalsym; 730 uint32_t iextrel; 731 uint32_t nextrel; 732 uint32_t iinit_iterm; 733 uint32_t ninit_nterm; 734 uint32_t objc_module_info_size; 735 uint64_t objc_module_info_addr; 736 }; 737 738 struct dylib_reference { 739 uint32_t isym:24, 740 flags:8; 741 }; 742 743 struct twolevel_hints_command { 744 uint32_t cmd; 745 uint32_t cmdsize; 746 uint32_t offset; 747 uint32_t nhints; 748 }; 749 750 struct twolevel_hint { 751 uint32_t isub_image:8, 752 itoc:24; 753 }; 754 755 struct prebind_cksum_command { 756 uint32_t cmd; 757 uint32_t cmdsize; 758 uint32_t cksum; 759 }; 760 761 struct uuid_command { 762 uint32_t cmd; 763 uint32_t cmdsize; 764 uint8_t uuid[16]; 765 }; 766 767 struct rpath_command { 768 uint32_t cmd; 769 uint32_t cmdsize; 770 uint32_t path; 771 }; 772 773 struct linkedit_data_command { 774 uint32_t cmd; 775 uint32_t cmdsize; 776 uint32_t dataoff; 777 uint32_t datasize; 778 }; 779 780 struct data_in_code_entry { 781 uint32_t offset; 782 uint16_t length; 783 uint16_t kind; 784 }; 785 786 struct source_version_command { 787 uint32_t cmd; 788 uint32_t cmdsize; 789 uint64_t version; 790 }; 791 792 struct encryption_info_command { 793 uint32_t cmd; 794 uint32_t cmdsize; 795 uint32_t cryptoff; 796 uint32_t cryptsize; 797 uint32_t cryptid; 798 }; 799 800 struct encryption_info_command_64 { 801 uint32_t cmd; 802 uint32_t cmdsize; 803 uint32_t cryptoff; 804 uint32_t cryptsize; 805 uint32_t cryptid; 806 uint32_t pad; 807 }; 808 809 struct version_min_command { 810 uint32_t cmd; // LC_VERSION_MIN_MACOSX or 811 // LC_VERSION_MIN_IPHONEOS 812 uint32_t cmdsize; // sizeof(struct version_min_command) 813 uint32_t version; // X.Y.Z is encoded in nibbles xxxx.yy.zz 814 uint32_t sdk; // X.Y.Z is encoded in nibbles xxxx.yy.zz 815 }; 816 817 struct dyld_info_command { 818 uint32_t cmd; 819 uint32_t cmdsize; 820 uint32_t rebase_off; 821 uint32_t rebase_size; 822 uint32_t bind_off; 823 uint32_t bind_size; 824 uint32_t weak_bind_off; 825 uint32_t weak_bind_size; 826 uint32_t lazy_bind_off; 827 uint32_t lazy_bind_size; 828 uint32_t export_off; 829 uint32_t export_size; 830 }; 831 832 struct linker_option_command { 833 uint32_t cmd; 834 uint32_t cmdsize; 835 uint32_t count; 836 }; 837 838 struct symseg_command { 839 uint32_t cmd; 840 uint32_t cmdsize; 841 uint32_t offset; 842 uint32_t size; 843 }; 844 845 struct ident_command { 846 uint32_t cmd; 847 uint32_t cmdsize; 848 }; 849 850 struct fvmfile_command { 851 uint32_t cmd; 852 uint32_t cmdsize; 853 uint32_t name; 854 uint32_t header_addr; 855 }; 856 857 struct tlv_descriptor_32 { 858 uint32_t thunk; 859 uint32_t key; 860 uint32_t offset; 861 }; 862 863 struct tlv_descriptor_64 { 864 uint64_t thunk; 865 uint64_t key; 866 uint64_t offset; 867 }; 868 869 struct tlv_descriptor { 870 uintptr_t thunk; 871 uintptr_t key; 872 uintptr_t offset; 873 }; 874 875 struct entry_point_command { 876 uint32_t cmd; 877 uint32_t cmdsize; 878 uint64_t entryoff; 879 uint64_t stacksize; 880 }; 881 882 // Structs from <mach-o/fat.h> 883 struct fat_header { 884 uint32_t magic; 885 uint32_t nfat_arch; 886 }; 887 888 struct fat_arch { 889 uint32_t cputype; 890 uint32_t cpusubtype; 891 uint32_t offset; 892 uint32_t size; 893 uint32_t align; 894 }; 895 896 struct fat_arch_64 { 897 uint32_t cputype; 898 uint32_t cpusubtype; 899 uint64_t offset; 900 uint64_t size; 901 uint32_t align; 902 uint32_t reserved; 903 }; 904 905 // Structs from <mach-o/reloc.h> 906 struct relocation_info { 907 int32_t r_address; 908 uint32_t r_symbolnum:24, 909 r_pcrel:1, 910 r_length:2, 911 r_extern:1, 912 r_type:4; 913 }; 914 915 struct scattered_relocation_info { 916 #if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && (BYTE_ORDER == BIG_ENDIAN) 917 uint32_t r_scattered:1, 918 r_pcrel:1, 919 r_length:2, 920 r_type:4, 921 r_address:24; 922 #else 923 uint32_t r_address:24, 924 r_type:4, 925 r_length:2, 926 r_pcrel:1, 927 r_scattered:1; 928 #endif 929 int32_t r_value; 930 }; 931 932 // Structs NOT from <mach-o/reloc.h>, but that make LLVM's life easier 933 struct any_relocation_info { 934 uint32_t r_word0, r_word1; 935 }; 936 937 // Structs from <mach-o/nlist.h> 938 struct nlist_base { 939 uint32_t n_strx; 940 uint8_t n_type; 941 uint8_t n_sect; 942 uint16_t n_desc; 943 }; 944 945 struct nlist { 946 uint32_t n_strx; 947 uint8_t n_type; 948 uint8_t n_sect; 949 int16_t n_desc; 950 uint32_t n_value; 951 }; 952 953 struct nlist_64 { 954 uint32_t n_strx; 955 uint8_t n_type; 956 uint8_t n_sect; 957 uint16_t n_desc; 958 uint64_t n_value; 959 }; 960 961 // Byte order swapping functions for MachO structs 962 swapStruct(fat_header & mh)963 inline void swapStruct(fat_header &mh) { 964 sys::swapByteOrder(mh.magic); 965 sys::swapByteOrder(mh.nfat_arch); 966 } 967 swapStruct(fat_arch & mh)968 inline void swapStruct(fat_arch &mh) { 969 sys::swapByteOrder(mh.cputype); 970 sys::swapByteOrder(mh.cpusubtype); 971 sys::swapByteOrder(mh.offset); 972 sys::swapByteOrder(mh.size); 973 sys::swapByteOrder(mh.align); 974 } 975 swapStruct(fat_arch_64 & mh)976 inline void swapStruct(fat_arch_64 &mh) { 977 sys::swapByteOrder(mh.cputype); 978 sys::swapByteOrder(mh.cpusubtype); 979 sys::swapByteOrder(mh.offset); 980 sys::swapByteOrder(mh.size); 981 sys::swapByteOrder(mh.align); 982 sys::swapByteOrder(mh.reserved); 983 } 984 swapStruct(mach_header & mh)985 inline void swapStruct(mach_header &mh) { 986 sys::swapByteOrder(mh.magic); 987 sys::swapByteOrder(mh.cputype); 988 sys::swapByteOrder(mh.cpusubtype); 989 sys::swapByteOrder(mh.filetype); 990 sys::swapByteOrder(mh.ncmds); 991 sys::swapByteOrder(mh.sizeofcmds); 992 sys::swapByteOrder(mh.flags); 993 } 994 swapStruct(mach_header_64 & H)995 inline void swapStruct(mach_header_64 &H) { 996 sys::swapByteOrder(H.magic); 997 sys::swapByteOrder(H.cputype); 998 sys::swapByteOrder(H.cpusubtype); 999 sys::swapByteOrder(H.filetype); 1000 sys::swapByteOrder(H.ncmds); 1001 sys::swapByteOrder(H.sizeofcmds); 1002 sys::swapByteOrder(H.flags); 1003 sys::swapByteOrder(H.reserved); 1004 } 1005 swapStruct(load_command & lc)1006 inline void swapStruct(load_command &lc) { 1007 sys::swapByteOrder(lc.cmd); 1008 sys::swapByteOrder(lc.cmdsize); 1009 } 1010 swapStruct(symtab_command & lc)1011 inline void swapStruct(symtab_command &lc) { 1012 sys::swapByteOrder(lc.cmd); 1013 sys::swapByteOrder(lc.cmdsize); 1014 sys::swapByteOrder(lc.symoff); 1015 sys::swapByteOrder(lc.nsyms); 1016 sys::swapByteOrder(lc.stroff); 1017 sys::swapByteOrder(lc.strsize); 1018 } 1019 swapStruct(segment_command_64 & seg)1020 inline void swapStruct(segment_command_64 &seg) { 1021 sys::swapByteOrder(seg.cmd); 1022 sys::swapByteOrder(seg.cmdsize); 1023 sys::swapByteOrder(seg.vmaddr); 1024 sys::swapByteOrder(seg.vmsize); 1025 sys::swapByteOrder(seg.fileoff); 1026 sys::swapByteOrder(seg.filesize); 1027 sys::swapByteOrder(seg.maxprot); 1028 sys::swapByteOrder(seg.initprot); 1029 sys::swapByteOrder(seg.nsects); 1030 sys::swapByteOrder(seg.flags); 1031 } 1032 swapStruct(segment_command & seg)1033 inline void swapStruct(segment_command &seg) { 1034 sys::swapByteOrder(seg.cmd); 1035 sys::swapByteOrder(seg.cmdsize); 1036 sys::swapByteOrder(seg.vmaddr); 1037 sys::swapByteOrder(seg.vmsize); 1038 sys::swapByteOrder(seg.fileoff); 1039 sys::swapByteOrder(seg.filesize); 1040 sys::swapByteOrder(seg.maxprot); 1041 sys::swapByteOrder(seg.initprot); 1042 sys::swapByteOrder(seg.nsects); 1043 sys::swapByteOrder(seg.flags); 1044 } 1045 swapStruct(section_64 & sect)1046 inline void swapStruct(section_64 §) { 1047 sys::swapByteOrder(sect.addr); 1048 sys::swapByteOrder(sect.size); 1049 sys::swapByteOrder(sect.offset); 1050 sys::swapByteOrder(sect.align); 1051 sys::swapByteOrder(sect.reloff); 1052 sys::swapByteOrder(sect.nreloc); 1053 sys::swapByteOrder(sect.flags); 1054 sys::swapByteOrder(sect.reserved1); 1055 sys::swapByteOrder(sect.reserved2); 1056 } 1057 swapStruct(section & sect)1058 inline void swapStruct(section §) { 1059 sys::swapByteOrder(sect.addr); 1060 sys::swapByteOrder(sect.size); 1061 sys::swapByteOrder(sect.offset); 1062 sys::swapByteOrder(sect.align); 1063 sys::swapByteOrder(sect.reloff); 1064 sys::swapByteOrder(sect.nreloc); 1065 sys::swapByteOrder(sect.flags); 1066 sys::swapByteOrder(sect.reserved1); 1067 sys::swapByteOrder(sect.reserved2); 1068 } 1069 swapStruct(dyld_info_command & info)1070 inline void swapStruct(dyld_info_command &info) { 1071 sys::swapByteOrder(info.cmd); 1072 sys::swapByteOrder(info.cmdsize); 1073 sys::swapByteOrder(info.rebase_off); 1074 sys::swapByteOrder(info.rebase_size); 1075 sys::swapByteOrder(info.bind_off); 1076 sys::swapByteOrder(info.bind_size); 1077 sys::swapByteOrder(info.weak_bind_off); 1078 sys::swapByteOrder(info.weak_bind_size); 1079 sys::swapByteOrder(info.lazy_bind_off); 1080 sys::swapByteOrder(info.lazy_bind_size); 1081 sys::swapByteOrder(info.export_off); 1082 sys::swapByteOrder(info.export_size); 1083 } 1084 swapStruct(dylib_command & d)1085 inline void swapStruct(dylib_command &d) { 1086 sys::swapByteOrder(d.cmd); 1087 sys::swapByteOrder(d.cmdsize); 1088 sys::swapByteOrder(d.dylib.name); 1089 sys::swapByteOrder(d.dylib.timestamp); 1090 sys::swapByteOrder(d.dylib.current_version); 1091 sys::swapByteOrder(d.dylib.compatibility_version); 1092 } 1093 swapStruct(sub_framework_command & s)1094 inline void swapStruct(sub_framework_command &s) { 1095 sys::swapByteOrder(s.cmd); 1096 sys::swapByteOrder(s.cmdsize); 1097 sys::swapByteOrder(s.umbrella); 1098 } 1099 swapStruct(sub_umbrella_command & s)1100 inline void swapStruct(sub_umbrella_command &s) { 1101 sys::swapByteOrder(s.cmd); 1102 sys::swapByteOrder(s.cmdsize); 1103 sys::swapByteOrder(s.sub_umbrella); 1104 } 1105 swapStruct(sub_library_command & s)1106 inline void swapStruct(sub_library_command &s) { 1107 sys::swapByteOrder(s.cmd); 1108 sys::swapByteOrder(s.cmdsize); 1109 sys::swapByteOrder(s.sub_library); 1110 } 1111 swapStruct(sub_client_command & s)1112 inline void swapStruct(sub_client_command &s) { 1113 sys::swapByteOrder(s.cmd); 1114 sys::swapByteOrder(s.cmdsize); 1115 sys::swapByteOrder(s.client); 1116 } 1117 swapStruct(routines_command & r)1118 inline void swapStruct(routines_command &r) { 1119 sys::swapByteOrder(r.cmd); 1120 sys::swapByteOrder(r.cmdsize); 1121 sys::swapByteOrder(r.init_address); 1122 sys::swapByteOrder(r.init_module); 1123 sys::swapByteOrder(r.reserved1); 1124 sys::swapByteOrder(r.reserved2); 1125 sys::swapByteOrder(r.reserved3); 1126 sys::swapByteOrder(r.reserved4); 1127 sys::swapByteOrder(r.reserved5); 1128 sys::swapByteOrder(r.reserved6); 1129 } 1130 swapStruct(routines_command_64 & r)1131 inline void swapStruct(routines_command_64 &r) { 1132 sys::swapByteOrder(r.cmd); 1133 sys::swapByteOrder(r.cmdsize); 1134 sys::swapByteOrder(r.init_address); 1135 sys::swapByteOrder(r.init_module); 1136 sys::swapByteOrder(r.reserved1); 1137 sys::swapByteOrder(r.reserved2); 1138 sys::swapByteOrder(r.reserved3); 1139 sys::swapByteOrder(r.reserved4); 1140 sys::swapByteOrder(r.reserved5); 1141 sys::swapByteOrder(r.reserved6); 1142 } 1143 swapStruct(thread_command & t)1144 inline void swapStruct(thread_command &t) { 1145 sys::swapByteOrder(t.cmd); 1146 sys::swapByteOrder(t.cmdsize); 1147 } 1148 swapStruct(dylinker_command & d)1149 inline void swapStruct(dylinker_command &d) { 1150 sys::swapByteOrder(d.cmd); 1151 sys::swapByteOrder(d.cmdsize); 1152 sys::swapByteOrder(d.name); 1153 } 1154 swapStruct(uuid_command & u)1155 inline void swapStruct(uuid_command &u) { 1156 sys::swapByteOrder(u.cmd); 1157 sys::swapByteOrder(u.cmdsize); 1158 } 1159 swapStruct(rpath_command & r)1160 inline void swapStruct(rpath_command &r) { 1161 sys::swapByteOrder(r.cmd); 1162 sys::swapByteOrder(r.cmdsize); 1163 sys::swapByteOrder(r.path); 1164 } 1165 swapStruct(source_version_command & s)1166 inline void swapStruct(source_version_command &s) { 1167 sys::swapByteOrder(s.cmd); 1168 sys::swapByteOrder(s.cmdsize); 1169 sys::swapByteOrder(s.version); 1170 } 1171 swapStruct(entry_point_command & e)1172 inline void swapStruct(entry_point_command &e) { 1173 sys::swapByteOrder(e.cmd); 1174 sys::swapByteOrder(e.cmdsize); 1175 sys::swapByteOrder(e.entryoff); 1176 sys::swapByteOrder(e.stacksize); 1177 } 1178 swapStruct(encryption_info_command & e)1179 inline void swapStruct(encryption_info_command &e) { 1180 sys::swapByteOrder(e.cmd); 1181 sys::swapByteOrder(e.cmdsize); 1182 sys::swapByteOrder(e.cryptoff); 1183 sys::swapByteOrder(e.cryptsize); 1184 sys::swapByteOrder(e.cryptid); 1185 } 1186 swapStruct(encryption_info_command_64 & e)1187 inline void swapStruct(encryption_info_command_64 &e) { 1188 sys::swapByteOrder(e.cmd); 1189 sys::swapByteOrder(e.cmdsize); 1190 sys::swapByteOrder(e.cryptoff); 1191 sys::swapByteOrder(e.cryptsize); 1192 sys::swapByteOrder(e.cryptid); 1193 sys::swapByteOrder(e.pad); 1194 } 1195 swapStruct(dysymtab_command & dst)1196 inline void swapStruct(dysymtab_command &dst) { 1197 sys::swapByteOrder(dst.cmd); 1198 sys::swapByteOrder(dst.cmdsize); 1199 sys::swapByteOrder(dst.ilocalsym); 1200 sys::swapByteOrder(dst.nlocalsym); 1201 sys::swapByteOrder(dst.iextdefsym); 1202 sys::swapByteOrder(dst.nextdefsym); 1203 sys::swapByteOrder(dst.iundefsym); 1204 sys::swapByteOrder(dst.nundefsym); 1205 sys::swapByteOrder(dst.tocoff); 1206 sys::swapByteOrder(dst.ntoc); 1207 sys::swapByteOrder(dst.modtaboff); 1208 sys::swapByteOrder(dst.nmodtab); 1209 sys::swapByteOrder(dst.extrefsymoff); 1210 sys::swapByteOrder(dst.nextrefsyms); 1211 sys::swapByteOrder(dst.indirectsymoff); 1212 sys::swapByteOrder(dst.nindirectsyms); 1213 sys::swapByteOrder(dst.extreloff); 1214 sys::swapByteOrder(dst.nextrel); 1215 sys::swapByteOrder(dst.locreloff); 1216 sys::swapByteOrder(dst.nlocrel); 1217 } 1218 swapStruct(any_relocation_info & reloc)1219 inline void swapStruct(any_relocation_info &reloc) { 1220 sys::swapByteOrder(reloc.r_word0); 1221 sys::swapByteOrder(reloc.r_word1); 1222 } 1223 swapStruct(nlist_base & S)1224 inline void swapStruct(nlist_base &S) { 1225 sys::swapByteOrder(S.n_strx); 1226 sys::swapByteOrder(S.n_desc); 1227 } 1228 swapStruct(nlist & sym)1229 inline void swapStruct(nlist &sym) { 1230 sys::swapByteOrder(sym.n_strx); 1231 sys::swapByteOrder(sym.n_desc); 1232 sys::swapByteOrder(sym.n_value); 1233 } 1234 swapStruct(nlist_64 & sym)1235 inline void swapStruct(nlist_64 &sym) { 1236 sys::swapByteOrder(sym.n_strx); 1237 sys::swapByteOrder(sym.n_desc); 1238 sys::swapByteOrder(sym.n_value); 1239 } 1240 swapStruct(linkedit_data_command & C)1241 inline void swapStruct(linkedit_data_command &C) { 1242 sys::swapByteOrder(C.cmd); 1243 sys::swapByteOrder(C.cmdsize); 1244 sys::swapByteOrder(C.dataoff); 1245 sys::swapByteOrder(C.datasize); 1246 } 1247 swapStruct(linker_option_command & C)1248 inline void swapStruct(linker_option_command &C) { 1249 sys::swapByteOrder(C.cmd); 1250 sys::swapByteOrder(C.cmdsize); 1251 sys::swapByteOrder(C.count); 1252 } 1253 swapStruct(version_min_command & C)1254 inline void swapStruct(version_min_command&C) { 1255 sys::swapByteOrder(C.cmd); 1256 sys::swapByteOrder(C.cmdsize); 1257 sys::swapByteOrder(C.version); 1258 sys::swapByteOrder(C.sdk); 1259 } 1260 swapStruct(data_in_code_entry & C)1261 inline void swapStruct(data_in_code_entry &C) { 1262 sys::swapByteOrder(C.offset); 1263 sys::swapByteOrder(C.length); 1264 sys::swapByteOrder(C.kind); 1265 } 1266 swapStruct(uint32_t & C)1267 inline void swapStruct(uint32_t &C) { 1268 sys::swapByteOrder(C); 1269 } 1270 swapStruct(prebind_cksum_command & C)1271 inline void swapStruct(prebind_cksum_command &C) { 1272 sys::swapByteOrder(C.cmd); 1273 sys::swapByteOrder(C.cmdsize); 1274 sys::swapByteOrder(C.cksum); 1275 } 1276 swapStruct(twolevel_hints_command & C)1277 inline void swapStruct(twolevel_hints_command &C) { 1278 sys::swapByteOrder(C.cmd); 1279 sys::swapByteOrder(C.cmdsize); 1280 sys::swapByteOrder(C.offset); 1281 sys::swapByteOrder(C.nhints); 1282 } 1283 swapStruct(prebound_dylib_command & C)1284 inline void swapStruct(prebound_dylib_command &C) { 1285 sys::swapByteOrder(C.cmd); 1286 sys::swapByteOrder(C.cmdsize); 1287 sys::swapByteOrder(C.name); 1288 sys::swapByteOrder(C.nmodules); 1289 sys::swapByteOrder(C.linked_modules); 1290 } 1291 swapStruct(fvmfile_command & C)1292 inline void swapStruct(fvmfile_command &C) { 1293 sys::swapByteOrder(C.cmd); 1294 sys::swapByteOrder(C.cmdsize); 1295 sys::swapByteOrder(C.name); 1296 sys::swapByteOrder(C.header_addr); 1297 } 1298 swapStruct(symseg_command & C)1299 inline void swapStruct(symseg_command &C) { 1300 sys::swapByteOrder(C.cmd); 1301 sys::swapByteOrder(C.cmdsize); 1302 sys::swapByteOrder(C.offset); 1303 sys::swapByteOrder(C.size); 1304 } 1305 swapStruct(ident_command & C)1306 inline void swapStruct(ident_command &C) { 1307 sys::swapByteOrder(C.cmd); 1308 sys::swapByteOrder(C.cmdsize); 1309 } 1310 swapStruct(fvmlib & C)1311 inline void swapStruct(fvmlib &C) { 1312 sys::swapByteOrder(C.name); 1313 sys::swapByteOrder(C.minor_version); 1314 sys::swapByteOrder(C.header_addr); 1315 } 1316 swapStruct(fvmlib_command & C)1317 inline void swapStruct(fvmlib_command &C) { 1318 sys::swapByteOrder(C.cmd); 1319 sys::swapByteOrder(C.cmdsize); 1320 swapStruct(C.fvmlib); 1321 } 1322 1323 // Get/Set functions from <mach-o/nlist.h> 1324 GET_LIBRARY_ORDINAL(uint16_t n_desc)1325 static inline uint16_t GET_LIBRARY_ORDINAL(uint16_t n_desc) { 1326 return (((n_desc) >> 8u) & 0xffu); 1327 } 1328 SET_LIBRARY_ORDINAL(uint16_t & n_desc,uint8_t ordinal)1329 static inline void SET_LIBRARY_ORDINAL(uint16_t &n_desc, uint8_t ordinal) { 1330 n_desc = (((n_desc) & 0x00ff) | (((ordinal) & 0xff) << 8)); 1331 } 1332 GET_COMM_ALIGN(uint16_t n_desc)1333 static inline uint8_t GET_COMM_ALIGN (uint16_t n_desc) { 1334 return (n_desc >> 8u) & 0x0fu; 1335 } 1336 SET_COMM_ALIGN(uint16_t & n_desc,uint8_t align)1337 static inline void SET_COMM_ALIGN (uint16_t &n_desc, uint8_t align) { 1338 n_desc = ((n_desc & 0xf0ffu) | ((align & 0x0fu) << 8u)); 1339 } 1340 1341 // Enums from <mach/machine.h> 1342 enum : uint32_t { 1343 // Capability bits used in the definition of cpu_type. 1344 CPU_ARCH_MASK = 0xff000000, // Mask for architecture bits 1345 CPU_ARCH_ABI64 = 0x01000000 // 64 bit ABI 1346 }; 1347 1348 // Constants for the cputype field. 1349 enum CPUType { 1350 CPU_TYPE_ANY = -1, 1351 CPU_TYPE_X86 = 7, 1352 CPU_TYPE_I386 = CPU_TYPE_X86, 1353 CPU_TYPE_X86_64 = CPU_TYPE_X86 | CPU_ARCH_ABI64, 1354 /* CPU_TYPE_MIPS = 8, */ 1355 CPU_TYPE_MC98000 = 10, // Old Motorola PowerPC 1356 CPU_TYPE_ARM = 12, 1357 CPU_TYPE_ARM64 = CPU_TYPE_ARM | CPU_ARCH_ABI64, 1358 CPU_TYPE_SPARC = 14, 1359 CPU_TYPE_POWERPC = 18, 1360 CPU_TYPE_POWERPC64 = CPU_TYPE_POWERPC | CPU_ARCH_ABI64 1361 }; 1362 1363 enum : uint32_t { 1364 // Capability bits used in the definition of cpusubtype. 1365 CPU_SUBTYPE_MASK = 0xff000000, // Mask for architecture bits 1366 CPU_SUBTYPE_LIB64 = 0x80000000, // 64 bit libraries 1367 1368 // Special CPU subtype constants. 1369 CPU_SUBTYPE_MULTIPLE = ~0u 1370 }; 1371 1372 // Constants for the cpusubtype field. 1373 enum CPUSubTypeX86 { 1374 CPU_SUBTYPE_I386_ALL = 3, 1375 CPU_SUBTYPE_386 = 3, 1376 CPU_SUBTYPE_486 = 4, 1377 CPU_SUBTYPE_486SX = 0x84, 1378 CPU_SUBTYPE_586 = 5, 1379 CPU_SUBTYPE_PENT = CPU_SUBTYPE_586, 1380 CPU_SUBTYPE_PENTPRO = 0x16, 1381 CPU_SUBTYPE_PENTII_M3 = 0x36, 1382 CPU_SUBTYPE_PENTII_M5 = 0x56, 1383 CPU_SUBTYPE_CELERON = 0x67, 1384 CPU_SUBTYPE_CELERON_MOBILE = 0x77, 1385 CPU_SUBTYPE_PENTIUM_3 = 0x08, 1386 CPU_SUBTYPE_PENTIUM_3_M = 0x18, 1387 CPU_SUBTYPE_PENTIUM_3_XEON = 0x28, 1388 CPU_SUBTYPE_PENTIUM_M = 0x09, 1389 CPU_SUBTYPE_PENTIUM_4 = 0x0a, 1390 CPU_SUBTYPE_PENTIUM_4_M = 0x1a, 1391 CPU_SUBTYPE_ITANIUM = 0x0b, 1392 CPU_SUBTYPE_ITANIUM_2 = 0x1b, 1393 CPU_SUBTYPE_XEON = 0x0c, 1394 CPU_SUBTYPE_XEON_MP = 0x1c, 1395 1396 CPU_SUBTYPE_X86_ALL = 3, 1397 CPU_SUBTYPE_X86_64_ALL = 3, 1398 CPU_SUBTYPE_X86_ARCH1 = 4, 1399 CPU_SUBTYPE_X86_64_H = 8 1400 }; CPU_SUBTYPE_INTEL(int Family,int Model)1401 static inline int CPU_SUBTYPE_INTEL(int Family, int Model) { 1402 return Family | (Model << 4); 1403 } CPU_SUBTYPE_INTEL_FAMILY(CPUSubTypeX86 ST)1404 static inline int CPU_SUBTYPE_INTEL_FAMILY(CPUSubTypeX86 ST) { 1405 return ((int)ST) & 0x0f; 1406 } CPU_SUBTYPE_INTEL_MODEL(CPUSubTypeX86 ST)1407 static inline int CPU_SUBTYPE_INTEL_MODEL(CPUSubTypeX86 ST) { 1408 return ((int)ST) >> 4; 1409 } 1410 enum { 1411 CPU_SUBTYPE_INTEL_FAMILY_MAX = 15, 1412 CPU_SUBTYPE_INTEL_MODEL_ALL = 0 1413 }; 1414 1415 enum CPUSubTypeARM { 1416 CPU_SUBTYPE_ARM_ALL = 0, 1417 CPU_SUBTYPE_ARM_V4T = 5, 1418 CPU_SUBTYPE_ARM_V6 = 6, 1419 CPU_SUBTYPE_ARM_V5 = 7, 1420 CPU_SUBTYPE_ARM_V5TEJ = 7, 1421 CPU_SUBTYPE_ARM_XSCALE = 8, 1422 CPU_SUBTYPE_ARM_V7 = 9, 1423 // unused ARM_V7F = 10, 1424 CPU_SUBTYPE_ARM_V7S = 11, 1425 CPU_SUBTYPE_ARM_V7K = 12, 1426 CPU_SUBTYPE_ARM_V6M = 14, 1427 CPU_SUBTYPE_ARM_V7M = 15, 1428 CPU_SUBTYPE_ARM_V7EM = 16 1429 }; 1430 1431 enum CPUSubTypeARM64 { 1432 CPU_SUBTYPE_ARM64_ALL = 0 1433 }; 1434 1435 enum CPUSubTypeSPARC { 1436 CPU_SUBTYPE_SPARC_ALL = 0 1437 }; 1438 1439 enum CPUSubTypePowerPC { 1440 CPU_SUBTYPE_POWERPC_ALL = 0, 1441 CPU_SUBTYPE_POWERPC_601 = 1, 1442 CPU_SUBTYPE_POWERPC_602 = 2, 1443 CPU_SUBTYPE_POWERPC_603 = 3, 1444 CPU_SUBTYPE_POWERPC_603e = 4, 1445 CPU_SUBTYPE_POWERPC_603ev = 5, 1446 CPU_SUBTYPE_POWERPC_604 = 6, 1447 CPU_SUBTYPE_POWERPC_604e = 7, 1448 CPU_SUBTYPE_POWERPC_620 = 8, 1449 CPU_SUBTYPE_POWERPC_750 = 9, 1450 CPU_SUBTYPE_POWERPC_7400 = 10, 1451 CPU_SUBTYPE_POWERPC_7450 = 11, 1452 CPU_SUBTYPE_POWERPC_970 = 100, 1453 1454 CPU_SUBTYPE_MC980000_ALL = CPU_SUBTYPE_POWERPC_ALL, 1455 CPU_SUBTYPE_MC98601 = CPU_SUBTYPE_POWERPC_601 1456 }; 1457 1458 struct x86_thread_state64_t { 1459 uint64_t rax; 1460 uint64_t rbx; 1461 uint64_t rcx; 1462 uint64_t rdx; 1463 uint64_t rdi; 1464 uint64_t rsi; 1465 uint64_t rbp; 1466 uint64_t rsp; 1467 uint64_t r8; 1468 uint64_t r9; 1469 uint64_t r10; 1470 uint64_t r11; 1471 uint64_t r12; 1472 uint64_t r13; 1473 uint64_t r14; 1474 uint64_t r15; 1475 uint64_t rip; 1476 uint64_t rflags; 1477 uint64_t cs; 1478 uint64_t fs; 1479 uint64_t gs; 1480 }; 1481 1482 enum x86_fp_control_precis { 1483 x86_FP_PREC_24B = 0, 1484 x86_FP_PREC_53B = 2, 1485 x86_FP_PREC_64B = 3 1486 }; 1487 1488 enum x86_fp_control_rc { 1489 x86_FP_RND_NEAR = 0, 1490 x86_FP_RND_DOWN = 1, 1491 x86_FP_RND_UP = 2, 1492 x86_FP_CHOP = 3 1493 }; 1494 1495 struct fp_control_t { 1496 unsigned short 1497 invalid :1, 1498 denorm :1, 1499 zdiv :1, 1500 ovrfl :1, 1501 undfl :1, 1502 precis :1, 1503 :2, 1504 pc :2, 1505 rc :2, 1506 :1, 1507 :3; 1508 }; 1509 1510 struct fp_status_t { 1511 unsigned short 1512 invalid :1, 1513 denorm :1, 1514 zdiv :1, 1515 ovrfl :1, 1516 undfl :1, 1517 precis :1, 1518 stkflt :1, 1519 errsumm :1, 1520 c0 :1, 1521 c1 :1, 1522 c2 :1, 1523 tos :3, 1524 c3 :1, 1525 busy :1; 1526 }; 1527 1528 struct mmst_reg_t { 1529 char mmst_reg[10]; 1530 char mmst_rsrv[6]; 1531 }; 1532 1533 struct xmm_reg_t { 1534 char xmm_reg[16]; 1535 }; 1536 1537 struct x86_float_state64_t { 1538 int32_t fpu_reserved[2]; 1539 fp_control_t fpu_fcw; 1540 fp_status_t fpu_fsw; 1541 uint8_t fpu_ftw; 1542 uint8_t fpu_rsrv1; 1543 uint16_t fpu_fop; 1544 uint32_t fpu_ip; 1545 uint16_t fpu_cs; 1546 uint16_t fpu_rsrv2; 1547 uint32_t fpu_dp; 1548 uint16_t fpu_ds; 1549 uint16_t fpu_rsrv3; 1550 uint32_t fpu_mxcsr; 1551 uint32_t fpu_mxcsrmask; 1552 mmst_reg_t fpu_stmm0; 1553 mmst_reg_t fpu_stmm1; 1554 mmst_reg_t fpu_stmm2; 1555 mmst_reg_t fpu_stmm3; 1556 mmst_reg_t fpu_stmm4; 1557 mmst_reg_t fpu_stmm5; 1558 mmst_reg_t fpu_stmm6; 1559 mmst_reg_t fpu_stmm7; 1560 xmm_reg_t fpu_xmm0; 1561 xmm_reg_t fpu_xmm1; 1562 xmm_reg_t fpu_xmm2; 1563 xmm_reg_t fpu_xmm3; 1564 xmm_reg_t fpu_xmm4; 1565 xmm_reg_t fpu_xmm5; 1566 xmm_reg_t fpu_xmm6; 1567 xmm_reg_t fpu_xmm7; 1568 xmm_reg_t fpu_xmm8; 1569 xmm_reg_t fpu_xmm9; 1570 xmm_reg_t fpu_xmm10; 1571 xmm_reg_t fpu_xmm11; 1572 xmm_reg_t fpu_xmm12; 1573 xmm_reg_t fpu_xmm13; 1574 xmm_reg_t fpu_xmm14; 1575 xmm_reg_t fpu_xmm15; 1576 char fpu_rsrv4[6*16]; 1577 uint32_t fpu_reserved1; 1578 }; 1579 1580 struct x86_exception_state64_t { 1581 uint16_t trapno; 1582 uint16_t cpu; 1583 uint32_t err; 1584 uint64_t faultvaddr; 1585 }; 1586 swapStruct(x86_thread_state64_t & x)1587 inline void swapStruct(x86_thread_state64_t &x) { 1588 sys::swapByteOrder(x.rax); 1589 sys::swapByteOrder(x.rbx); 1590 sys::swapByteOrder(x.rcx); 1591 sys::swapByteOrder(x.rdx); 1592 sys::swapByteOrder(x.rdi); 1593 sys::swapByteOrder(x.rsi); 1594 sys::swapByteOrder(x.rbp); 1595 sys::swapByteOrder(x.rsp); 1596 sys::swapByteOrder(x.r8); 1597 sys::swapByteOrder(x.r9); 1598 sys::swapByteOrder(x.r10); 1599 sys::swapByteOrder(x.r11); 1600 sys::swapByteOrder(x.r12); 1601 sys::swapByteOrder(x.r13); 1602 sys::swapByteOrder(x.r14); 1603 sys::swapByteOrder(x.r15); 1604 sys::swapByteOrder(x.rip); 1605 sys::swapByteOrder(x.rflags); 1606 sys::swapByteOrder(x.cs); 1607 sys::swapByteOrder(x.fs); 1608 sys::swapByteOrder(x.gs); 1609 } 1610 swapStruct(x86_float_state64_t & x)1611 inline void swapStruct(x86_float_state64_t &x) { 1612 sys::swapByteOrder(x.fpu_reserved[0]); 1613 sys::swapByteOrder(x.fpu_reserved[1]); 1614 // TODO swap: fp_control_t fpu_fcw; 1615 // TODO swap: fp_status_t fpu_fsw; 1616 sys::swapByteOrder(x.fpu_fop); 1617 sys::swapByteOrder(x.fpu_ip); 1618 sys::swapByteOrder(x.fpu_cs); 1619 sys::swapByteOrder(x.fpu_rsrv2); 1620 sys::swapByteOrder(x.fpu_dp); 1621 sys::swapByteOrder(x.fpu_ds); 1622 sys::swapByteOrder(x.fpu_rsrv3); 1623 sys::swapByteOrder(x.fpu_mxcsr); 1624 sys::swapByteOrder(x.fpu_mxcsrmask); 1625 sys::swapByteOrder(x.fpu_reserved1); 1626 } 1627 swapStruct(x86_exception_state64_t & x)1628 inline void swapStruct(x86_exception_state64_t &x) { 1629 sys::swapByteOrder(x.trapno); 1630 sys::swapByteOrder(x.cpu); 1631 sys::swapByteOrder(x.err); 1632 sys::swapByteOrder(x.faultvaddr); 1633 } 1634 1635 struct x86_state_hdr_t { 1636 uint32_t flavor; 1637 uint32_t count; 1638 }; 1639 1640 struct x86_thread_state_t { 1641 x86_state_hdr_t tsh; 1642 union { 1643 x86_thread_state64_t ts64; 1644 } uts; 1645 }; 1646 1647 struct x86_float_state_t { 1648 x86_state_hdr_t fsh; 1649 union { 1650 x86_float_state64_t fs64; 1651 } ufs; 1652 }; 1653 1654 struct x86_exception_state_t { 1655 x86_state_hdr_t esh; 1656 union { 1657 x86_exception_state64_t es64; 1658 } ues; 1659 }; 1660 swapStruct(x86_state_hdr_t & x)1661 inline void swapStruct(x86_state_hdr_t &x) { 1662 sys::swapByteOrder(x.flavor); 1663 sys::swapByteOrder(x.count); 1664 } 1665 1666 enum X86ThreadFlavors { 1667 x86_THREAD_STATE32 = 1, 1668 x86_FLOAT_STATE32 = 2, 1669 x86_EXCEPTION_STATE32 = 3, 1670 x86_THREAD_STATE64 = 4, 1671 x86_FLOAT_STATE64 = 5, 1672 x86_EXCEPTION_STATE64 = 6, 1673 x86_THREAD_STATE = 7, 1674 x86_FLOAT_STATE = 8, 1675 x86_EXCEPTION_STATE = 9, 1676 x86_DEBUG_STATE32 = 10, 1677 x86_DEBUG_STATE64 = 11, 1678 x86_DEBUG_STATE = 12 1679 }; 1680 swapStruct(x86_thread_state_t & x)1681 inline void swapStruct(x86_thread_state_t &x) { 1682 swapStruct(x.tsh); 1683 if (x.tsh.flavor == x86_THREAD_STATE64) 1684 swapStruct(x.uts.ts64); 1685 } 1686 swapStruct(x86_float_state_t & x)1687 inline void swapStruct(x86_float_state_t &x) { 1688 swapStruct(x.fsh); 1689 if (x.fsh.flavor == x86_FLOAT_STATE64) 1690 swapStruct(x.ufs.fs64); 1691 } 1692 swapStruct(x86_exception_state_t & x)1693 inline void swapStruct(x86_exception_state_t &x) { 1694 swapStruct(x.esh); 1695 if (x.esh.flavor == x86_EXCEPTION_STATE64) 1696 swapStruct(x.ues.es64); 1697 } 1698 1699 const uint32_t x86_THREAD_STATE64_COUNT = 1700 sizeof(x86_thread_state64_t) / sizeof(uint32_t); 1701 const uint32_t x86_FLOAT_STATE64_COUNT = 1702 sizeof(x86_float_state64_t) / sizeof(uint32_t); 1703 const uint32_t x86_EXCEPTION_STATE64_COUNT = 1704 sizeof(x86_exception_state64_t) / sizeof(uint32_t); 1705 1706 const uint32_t x86_THREAD_STATE_COUNT = 1707 sizeof(x86_thread_state_t) / sizeof(uint32_t); 1708 const uint32_t x86_FLOAT_STATE_COUNT = 1709 sizeof(x86_float_state_t) / sizeof(uint32_t); 1710 const uint32_t x86_EXCEPTION_STATE_COUNT = 1711 sizeof(x86_exception_state_t) / sizeof(uint32_t); 1712 1713 // Define a union of all load command structs 1714 #define LOAD_COMMAND_STRUCT(LCStruct) LCStruct LCStruct##_data; 1715 1716 union macho_load_command { 1717 #include "llvm/Support/MachO.def" 1718 }; 1719 1720 } // end namespace MachO 1721 } // end namespace llvm 1722 1723 #endif 1724