1 //===-- llvm/BinaryFormat/MachO.h - The MachO file format -------*- C++/-*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file defines manifest constants for the MachO object file format. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_BINARYFORMAT_MACHO_H 14 #define LLVM_BINARYFORMAT_MACHO_H 15 16 #include "llvm/Support/Compiler.h" 17 #include "llvm/Support/DataTypes.h" 18 #include "llvm/Support/Error.h" 19 #include "llvm/Support/SwapByteOrder.h" 20 21 namespace llvm { 22 23 class Triple; 24 25 namespace MachO { 26 // Enums from <mach-o/loader.h> 27 enum : uint32_t { 28 // Constants for the "magic" field in llvm::MachO::mach_header and 29 // llvm::MachO::mach_header_64 30 MH_MAGIC = 0xFEEDFACEu, 31 MH_CIGAM = 0xCEFAEDFEu, 32 MH_MAGIC_64 = 0xFEEDFACFu, 33 MH_CIGAM_64 = 0xCFFAEDFEu, 34 FAT_MAGIC = 0xCAFEBABEu, 35 FAT_CIGAM = 0xBEBAFECAu, 36 FAT_MAGIC_64 = 0xCAFEBABFu, 37 FAT_CIGAM_64 = 0xBFBAFECAu 38 }; 39 40 enum HeaderFileType { 41 // Constants for the "filetype" field in llvm::MachO::mach_header and 42 // llvm::MachO::mach_header_64 43 MH_OBJECT = 0x1u, 44 MH_EXECUTE = 0x2u, 45 MH_FVMLIB = 0x3u, 46 MH_CORE = 0x4u, 47 MH_PRELOAD = 0x5u, 48 MH_DYLIB = 0x6u, 49 MH_DYLINKER = 0x7u, 50 MH_BUNDLE = 0x8u, 51 MH_DYLIB_STUB = 0x9u, 52 MH_DSYM = 0xAu, 53 MH_KEXT_BUNDLE = 0xBu 54 }; 55 56 enum { 57 // Constant bits for the "flags" field in llvm::MachO::mach_header and 58 // llvm::MachO::mach_header_64 59 MH_NOUNDEFS = 0x00000001u, 60 MH_INCRLINK = 0x00000002u, 61 MH_DYLDLINK = 0x00000004u, 62 MH_BINDATLOAD = 0x00000008u, 63 MH_PREBOUND = 0x00000010u, 64 MH_SPLIT_SEGS = 0x00000020u, 65 MH_LAZY_INIT = 0x00000040u, 66 MH_TWOLEVEL = 0x00000080u, 67 MH_FORCE_FLAT = 0x00000100u, 68 MH_NOMULTIDEFS = 0x00000200u, 69 MH_NOFIXPREBINDING = 0x00000400u, 70 MH_PREBINDABLE = 0x00000800u, 71 MH_ALLMODSBOUND = 0x00001000u, 72 MH_SUBSECTIONS_VIA_SYMBOLS = 0x00002000u, 73 MH_CANONICAL = 0x00004000u, 74 MH_WEAK_DEFINES = 0x00008000u, 75 MH_BINDS_TO_WEAK = 0x00010000u, 76 MH_ALLOW_STACK_EXECUTION = 0x00020000u, 77 MH_ROOT_SAFE = 0x00040000u, 78 MH_SETUID_SAFE = 0x00080000u, 79 MH_NO_REEXPORTED_DYLIBS = 0x00100000u, 80 MH_PIE = 0x00200000u, 81 MH_DEAD_STRIPPABLE_DYLIB = 0x00400000u, 82 MH_HAS_TLV_DESCRIPTORS = 0x00800000u, 83 MH_NO_HEAP_EXECUTION = 0x01000000u, 84 MH_APP_EXTENSION_SAFE = 0x02000000u, 85 MH_NLIST_OUTOFSYNC_WITH_DYLDINFO = 0x04000000u, 86 MH_SIM_SUPPORT = 0x08000000u, 87 MH_DYLIB_IN_CACHE = 0x80000000u, 88 }; 89 90 enum : uint32_t { 91 // Flags for the "cmd" field in llvm::MachO::load_command 92 LC_REQ_DYLD = 0x80000000u 93 }; 94 95 #define HANDLE_LOAD_COMMAND(LCName, LCValue, LCStruct) LCName = LCValue, 96 97 enum LoadCommandType : uint32_t { 98 #include "llvm/BinaryFormat/MachO.def" 99 }; 100 101 #undef HANDLE_LOAD_COMMAND 102 103 enum : uint32_t { 104 // Constant bits for the "flags" field in llvm::MachO::segment_command 105 SG_HIGHVM = 0x1u, 106 SG_FVMLIB = 0x2u, 107 SG_NORELOC = 0x4u, 108 SG_PROTECTED_VERSION_1 = 0x8u, 109 110 // Constant masks for the "flags" field in llvm::MachO::section and 111 // llvm::MachO::section_64 112 SECTION_TYPE = 0x000000ffu, // SECTION_TYPE 113 SECTION_ATTRIBUTES = 0xffffff00u, // SECTION_ATTRIBUTES 114 SECTION_ATTRIBUTES_USR = 0xff000000u, // SECTION_ATTRIBUTES_USR 115 SECTION_ATTRIBUTES_SYS = 0x00ffff00u // SECTION_ATTRIBUTES_SYS 116 }; 117 118 /// These are the section type and attributes fields. A MachO section can 119 /// have only one Type, but can have any of the attributes specified. 120 enum SectionType : uint32_t { 121 // Constant masks for the "flags[7:0]" field in llvm::MachO::section and 122 // llvm::MachO::section_64 (mask "flags" with SECTION_TYPE) 123 124 /// S_REGULAR - Regular section. 125 S_REGULAR = 0x00u, 126 /// S_ZEROFILL - Zero fill on demand section. 127 S_ZEROFILL = 0x01u, 128 /// S_CSTRING_LITERALS - Section with literal C strings. 129 S_CSTRING_LITERALS = 0x02u, 130 /// S_4BYTE_LITERALS - Section with 4 byte literals. 131 S_4BYTE_LITERALS = 0x03u, 132 /// S_8BYTE_LITERALS - Section with 8 byte literals. 133 S_8BYTE_LITERALS = 0x04u, 134 /// S_LITERAL_POINTERS - Section with pointers to literals. 135 S_LITERAL_POINTERS = 0x05u, 136 /// S_NON_LAZY_SYMBOL_POINTERS - Section with non-lazy symbol pointers. 137 S_NON_LAZY_SYMBOL_POINTERS = 0x06u, 138 /// S_LAZY_SYMBOL_POINTERS - Section with lazy symbol pointers. 139 S_LAZY_SYMBOL_POINTERS = 0x07u, 140 /// S_SYMBOL_STUBS - Section with symbol stubs, byte size of stub in 141 /// the Reserved2 field. 142 S_SYMBOL_STUBS = 0x08u, 143 /// S_MOD_INIT_FUNC_POINTERS - Section with only function pointers for 144 /// initialization. 145 S_MOD_INIT_FUNC_POINTERS = 0x09u, 146 /// S_MOD_TERM_FUNC_POINTERS - Section with only function pointers for 147 /// termination. 148 S_MOD_TERM_FUNC_POINTERS = 0x0au, 149 /// S_COALESCED - Section contains symbols that are to be coalesced. 150 S_COALESCED = 0x0bu, 151 /// S_GB_ZEROFILL - Zero fill on demand section (that can be larger than 4 152 /// gigabytes). 153 S_GB_ZEROFILL = 0x0cu, 154 /// S_INTERPOSING - Section with only pairs of function pointers for 155 /// interposing. 156 S_INTERPOSING = 0x0du, 157 /// S_16BYTE_LITERALS - Section with only 16 byte literals. 158 S_16BYTE_LITERALS = 0x0eu, 159 /// S_DTRACE_DOF - Section contains DTrace Object Format. 160 S_DTRACE_DOF = 0x0fu, 161 /// S_LAZY_DYLIB_SYMBOL_POINTERS - Section with lazy symbol pointers to 162 /// lazy loaded dylibs. 163 S_LAZY_DYLIB_SYMBOL_POINTERS = 0x10u, 164 /// S_THREAD_LOCAL_REGULAR - Thread local data section. 165 S_THREAD_LOCAL_REGULAR = 0x11u, 166 /// S_THREAD_LOCAL_ZEROFILL - Thread local zerofill section. 167 S_THREAD_LOCAL_ZEROFILL = 0x12u, 168 /// S_THREAD_LOCAL_VARIABLES - Section with thread local variable 169 /// structure data. 170 S_THREAD_LOCAL_VARIABLES = 0x13u, 171 /// S_THREAD_LOCAL_VARIABLE_POINTERS - Section with pointers to thread 172 /// local structures. 173 S_THREAD_LOCAL_VARIABLE_POINTERS = 0x14u, 174 /// S_THREAD_LOCAL_INIT_FUNCTION_POINTERS - Section with thread local 175 /// variable initialization pointers to functions. 176 S_THREAD_LOCAL_INIT_FUNCTION_POINTERS = 0x15u, 177 178 LAST_KNOWN_SECTION_TYPE = S_THREAD_LOCAL_INIT_FUNCTION_POINTERS 179 }; 180 181 enum : uint32_t { 182 // Constant masks for the "flags[31:24]" field in llvm::MachO::section and 183 // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_USR) 184 185 /// S_ATTR_PURE_INSTRUCTIONS - Section contains only true machine 186 /// instructions. 187 S_ATTR_PURE_INSTRUCTIONS = 0x80000000u, 188 /// S_ATTR_NO_TOC - Section contains coalesced symbols that are not to be 189 /// in a ranlib table of contents. 190 S_ATTR_NO_TOC = 0x40000000u, 191 /// S_ATTR_STRIP_STATIC_SYMS - Ok to strip static symbols in this section 192 /// in files with the MY_DYLDLINK flag. 193 S_ATTR_STRIP_STATIC_SYMS = 0x20000000u, 194 /// S_ATTR_NO_DEAD_STRIP - No dead stripping. 195 S_ATTR_NO_DEAD_STRIP = 0x10000000u, 196 /// S_ATTR_LIVE_SUPPORT - Blocks are live if they reference live blocks. 197 S_ATTR_LIVE_SUPPORT = 0x08000000u, 198 /// S_ATTR_SELF_MODIFYING_CODE - Used with i386 code stubs written on by 199 /// dyld. 200 S_ATTR_SELF_MODIFYING_CODE = 0x04000000u, 201 /// S_ATTR_DEBUG - A debug section. 202 S_ATTR_DEBUG = 0x02000000u, 203 204 // Constant masks for the "flags[23:8]" field in llvm::MachO::section and 205 // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_SYS) 206 207 /// S_ATTR_SOME_INSTRUCTIONS - Section contains some machine instructions. 208 S_ATTR_SOME_INSTRUCTIONS = 0x00000400u, 209 /// S_ATTR_EXT_RELOC - Section has external relocation entries. 210 S_ATTR_EXT_RELOC = 0x00000200u, 211 /// S_ATTR_LOC_RELOC - Section has local relocation entries. 212 S_ATTR_LOC_RELOC = 0x00000100u, 213 214 // Constant masks for the value of an indirect symbol in an indirect 215 // symbol table 216 INDIRECT_SYMBOL_LOCAL = 0x80000000u, 217 INDIRECT_SYMBOL_ABS = 0x40000000u 218 }; 219 220 enum DataRegionType { 221 // Constants for the "kind" field in a data_in_code_entry structure 222 DICE_KIND_DATA = 1u, 223 DICE_KIND_JUMP_TABLE8 = 2u, 224 DICE_KIND_JUMP_TABLE16 = 3u, 225 DICE_KIND_JUMP_TABLE32 = 4u, 226 DICE_KIND_ABS_JUMP_TABLE32 = 5u 227 }; 228 229 enum RebaseType { 230 REBASE_TYPE_POINTER = 1u, 231 REBASE_TYPE_TEXT_ABSOLUTE32 = 2u, 232 REBASE_TYPE_TEXT_PCREL32 = 3u 233 }; 234 235 enum { REBASE_OPCODE_MASK = 0xF0u, REBASE_IMMEDIATE_MASK = 0x0Fu }; 236 237 enum RebaseOpcode { 238 REBASE_OPCODE_DONE = 0x00u, 239 REBASE_OPCODE_SET_TYPE_IMM = 0x10u, 240 REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB = 0x20u, 241 REBASE_OPCODE_ADD_ADDR_ULEB = 0x30u, 242 REBASE_OPCODE_ADD_ADDR_IMM_SCALED = 0x40u, 243 REBASE_OPCODE_DO_REBASE_IMM_TIMES = 0x50u, 244 REBASE_OPCODE_DO_REBASE_ULEB_TIMES = 0x60u, 245 REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB = 0x70u, 246 REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB = 0x80u 247 }; 248 249 enum BindType { 250 BIND_TYPE_POINTER = 1u, 251 BIND_TYPE_TEXT_ABSOLUTE32 = 2u, 252 BIND_TYPE_TEXT_PCREL32 = 3u 253 }; 254 255 enum BindSpecialDylib { 256 BIND_SPECIAL_DYLIB_SELF = 0, 257 BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE = -1, 258 BIND_SPECIAL_DYLIB_FLAT_LOOKUP = -2 259 }; 260 261 enum { 262 BIND_SYMBOL_FLAGS_WEAK_IMPORT = 0x1u, 263 BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION = 0x8u, 264 265 BIND_OPCODE_MASK = 0xF0u, 266 BIND_IMMEDIATE_MASK = 0x0Fu 267 }; 268 269 enum BindOpcode { 270 BIND_OPCODE_DONE = 0x00u, 271 BIND_OPCODE_SET_DYLIB_ORDINAL_IMM = 0x10u, 272 BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB = 0x20u, 273 BIND_OPCODE_SET_DYLIB_SPECIAL_IMM = 0x30u, 274 BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM = 0x40u, 275 BIND_OPCODE_SET_TYPE_IMM = 0x50u, 276 BIND_OPCODE_SET_ADDEND_SLEB = 0x60u, 277 BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB = 0x70u, 278 BIND_OPCODE_ADD_ADDR_ULEB = 0x80u, 279 BIND_OPCODE_DO_BIND = 0x90u, 280 BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB = 0xA0u, 281 BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED = 0xB0u, 282 BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB = 0xC0u 283 }; 284 285 enum { 286 EXPORT_SYMBOL_FLAGS_KIND_MASK = 0x03u, 287 EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION = 0x04u, 288 EXPORT_SYMBOL_FLAGS_REEXPORT = 0x08u, 289 EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER = 0x10u 290 }; 291 292 enum ExportSymbolKind { 293 EXPORT_SYMBOL_FLAGS_KIND_REGULAR = 0x00u, 294 EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL = 0x01u, 295 EXPORT_SYMBOL_FLAGS_KIND_ABSOLUTE = 0x02u 296 }; 297 298 enum { 299 // Constant masks for the "n_type" field in llvm::MachO::nlist and 300 // llvm::MachO::nlist_64 301 N_STAB = 0xe0, 302 N_PEXT = 0x10, 303 N_TYPE = 0x0e, 304 N_EXT = 0x01 305 }; 306 307 enum NListType : uint8_t { 308 // Constants for the "n_type & N_TYPE" llvm::MachO::nlist and 309 // llvm::MachO::nlist_64 310 N_UNDF = 0x0u, 311 N_ABS = 0x2u, 312 N_SECT = 0xeu, 313 N_PBUD = 0xcu, 314 N_INDR = 0xau 315 }; 316 317 enum SectionOrdinal { 318 // Constants for the "n_sect" field in llvm::MachO::nlist and 319 // llvm::MachO::nlist_64 320 NO_SECT = 0u, 321 MAX_SECT = 0xffu 322 }; 323 324 enum { 325 // Constant masks for the "n_desc" field in llvm::MachO::nlist and 326 // llvm::MachO::nlist_64 327 // The low 3 bits are the for the REFERENCE_TYPE. 328 REFERENCE_TYPE = 0x7, 329 REFERENCE_FLAG_UNDEFINED_NON_LAZY = 0, 330 REFERENCE_FLAG_UNDEFINED_LAZY = 1, 331 REFERENCE_FLAG_DEFINED = 2, 332 REFERENCE_FLAG_PRIVATE_DEFINED = 3, 333 REFERENCE_FLAG_PRIVATE_UNDEFINED_NON_LAZY = 4, 334 REFERENCE_FLAG_PRIVATE_UNDEFINED_LAZY = 5, 335 // Flag bits (some overlap with the library ordinal bits). 336 N_ARM_THUMB_DEF = 0x0008u, 337 REFERENCED_DYNAMICALLY = 0x0010u, 338 N_NO_DEAD_STRIP = 0x0020u, 339 N_WEAK_REF = 0x0040u, 340 N_WEAK_DEF = 0x0080u, 341 N_SYMBOL_RESOLVER = 0x0100u, 342 N_ALT_ENTRY = 0x0200u, 343 N_COLD_FUNC = 0x0400u, 344 // For undefined symbols coming from libraries, see GET_LIBRARY_ORDINAL() 345 // as these are in the top 8 bits. 346 SELF_LIBRARY_ORDINAL = 0x0, 347 MAX_LIBRARY_ORDINAL = 0xfd, 348 DYNAMIC_LOOKUP_ORDINAL = 0xfe, 349 EXECUTABLE_ORDINAL = 0xff 350 }; 351 352 enum StabType { 353 // Constant values for the "n_type" field in llvm::MachO::nlist and 354 // llvm::MachO::nlist_64 when "(n_type & N_STAB) != 0" 355 N_GSYM = 0x20u, 356 N_FNAME = 0x22u, 357 N_FUN = 0x24u, 358 N_STSYM = 0x26u, 359 N_LCSYM = 0x28u, 360 N_BNSYM = 0x2Eu, 361 N_PC = 0x30u, 362 N_AST = 0x32u, 363 N_OPT = 0x3Cu, 364 N_RSYM = 0x40u, 365 N_SLINE = 0x44u, 366 N_ENSYM = 0x4Eu, 367 N_SSYM = 0x60u, 368 N_SO = 0x64u, 369 N_OSO = 0x66u, 370 N_LSYM = 0x80u, 371 N_BINCL = 0x82u, 372 N_SOL = 0x84u, 373 N_PARAMS = 0x86u, 374 N_VERSION = 0x88u, 375 N_OLEVEL = 0x8Au, 376 N_PSYM = 0xA0u, 377 N_EINCL = 0xA2u, 378 N_ENTRY = 0xA4u, 379 N_LBRAC = 0xC0u, 380 N_EXCL = 0xC2u, 381 N_RBRAC = 0xE0u, 382 N_BCOMM = 0xE2u, 383 N_ECOMM = 0xE4u, 384 N_ECOML = 0xE8u, 385 N_LENG = 0xFEu 386 }; 387 388 enum : uint32_t { 389 // Constant values for the r_symbolnum field in an 390 // llvm::MachO::relocation_info structure when r_extern is 0. 391 R_ABS = 0, 392 393 // Constant bits for the r_address field in an 394 // llvm::MachO::relocation_info structure. 395 R_SCATTERED = 0x80000000 396 }; 397 398 enum RelocationInfoType { 399 // Constant values for the r_type field in an 400 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 401 // structure. 402 GENERIC_RELOC_INVALID = 0xff, 403 GENERIC_RELOC_VANILLA = 0, 404 GENERIC_RELOC_PAIR = 1, 405 GENERIC_RELOC_SECTDIFF = 2, 406 GENERIC_RELOC_PB_LA_PTR = 3, 407 GENERIC_RELOC_LOCAL_SECTDIFF = 4, 408 GENERIC_RELOC_TLV = 5, 409 410 // Constant values for the r_type field in a PowerPC architecture 411 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 412 // structure. 413 PPC_RELOC_VANILLA = GENERIC_RELOC_VANILLA, 414 PPC_RELOC_PAIR = GENERIC_RELOC_PAIR, 415 PPC_RELOC_BR14 = 2, 416 PPC_RELOC_BR24 = 3, 417 PPC_RELOC_HI16 = 4, 418 PPC_RELOC_LO16 = 5, 419 PPC_RELOC_HA16 = 6, 420 PPC_RELOC_LO14 = 7, 421 PPC_RELOC_SECTDIFF = 8, 422 PPC_RELOC_PB_LA_PTR = 9, 423 PPC_RELOC_HI16_SECTDIFF = 10, 424 PPC_RELOC_LO16_SECTDIFF = 11, 425 PPC_RELOC_HA16_SECTDIFF = 12, 426 PPC_RELOC_JBSR = 13, 427 PPC_RELOC_LO14_SECTDIFF = 14, 428 PPC_RELOC_LOCAL_SECTDIFF = 15, 429 430 // Constant values for the r_type field in an ARM architecture 431 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 432 // structure. 433 ARM_RELOC_VANILLA = GENERIC_RELOC_VANILLA, 434 ARM_RELOC_PAIR = GENERIC_RELOC_PAIR, 435 ARM_RELOC_SECTDIFF = GENERIC_RELOC_SECTDIFF, 436 ARM_RELOC_LOCAL_SECTDIFF = 3, 437 ARM_RELOC_PB_LA_PTR = 4, 438 ARM_RELOC_BR24 = 5, 439 ARM_THUMB_RELOC_BR22 = 6, 440 ARM_THUMB_32BIT_BRANCH = 7, // obsolete 441 ARM_RELOC_HALF = 8, 442 ARM_RELOC_HALF_SECTDIFF = 9, 443 444 // Constant values for the r_type field in an ARM64 architecture 445 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 446 // structure. 447 448 // For pointers. 449 ARM64_RELOC_UNSIGNED = 0, 450 // Must be followed by an ARM64_RELOC_UNSIGNED 451 ARM64_RELOC_SUBTRACTOR = 1, 452 // A B/BL instruction with 26-bit displacement. 453 ARM64_RELOC_BRANCH26 = 2, 454 // PC-rel distance to page of target. 455 ARM64_RELOC_PAGE21 = 3, 456 // Offset within page, scaled by r_length. 457 ARM64_RELOC_PAGEOFF12 = 4, 458 // PC-rel distance to page of GOT slot. 459 ARM64_RELOC_GOT_LOAD_PAGE21 = 5, 460 // Offset within page of GOT slot, scaled by r_length. 461 ARM64_RELOC_GOT_LOAD_PAGEOFF12 = 6, 462 // For pointers to GOT slots. 463 ARM64_RELOC_POINTER_TO_GOT = 7, 464 // PC-rel distance to page of TLVP slot. 465 ARM64_RELOC_TLVP_LOAD_PAGE21 = 8, 466 // Offset within page of TLVP slot, scaled by r_length. 467 ARM64_RELOC_TLVP_LOAD_PAGEOFF12 = 9, 468 // Must be followed by ARM64_RELOC_PAGE21 or ARM64_RELOC_PAGEOFF12. 469 ARM64_RELOC_ADDEND = 10, 470 471 // Constant values for the r_type field in an x86_64 architecture 472 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 473 // structure 474 X86_64_RELOC_UNSIGNED = 0, 475 X86_64_RELOC_SIGNED = 1, 476 X86_64_RELOC_BRANCH = 2, 477 X86_64_RELOC_GOT_LOAD = 3, 478 X86_64_RELOC_GOT = 4, 479 X86_64_RELOC_SUBTRACTOR = 5, 480 X86_64_RELOC_SIGNED_1 = 6, 481 X86_64_RELOC_SIGNED_2 = 7, 482 X86_64_RELOC_SIGNED_4 = 8, 483 X86_64_RELOC_TLV = 9 484 }; 485 486 // Values for segment_command.initprot. 487 // From <mach/vm_prot.h> 488 enum { VM_PROT_READ = 0x1, VM_PROT_WRITE = 0x2, VM_PROT_EXECUTE = 0x4 }; 489 490 // Values for platform field in build_version_command. 491 enum PlatformType { 492 PLATFORM_MACOS = 1, 493 PLATFORM_IOS = 2, 494 PLATFORM_TVOS = 3, 495 PLATFORM_WATCHOS = 4, 496 PLATFORM_BRIDGEOS = 5, 497 PLATFORM_MACCATALYST = 6, 498 PLATFORM_IOSSIMULATOR = 7, 499 PLATFORM_TVOSSIMULATOR = 8, 500 PLATFORM_WATCHOSSIMULATOR = 9, 501 PLATFORM_DRIVERKIT = 10, 502 }; 503 504 // Values for tools enum in build_tool_version. 505 enum { TOOL_CLANG = 1, TOOL_SWIFT = 2, TOOL_LD = 3 }; 506 507 // Structs from <mach-o/loader.h> 508 509 struct mach_header { 510 uint32_t magic; 511 uint32_t cputype; 512 uint32_t cpusubtype; 513 uint32_t filetype; 514 uint32_t ncmds; 515 uint32_t sizeofcmds; 516 uint32_t flags; 517 }; 518 519 struct mach_header_64 { 520 uint32_t magic; 521 uint32_t cputype; 522 uint32_t cpusubtype; 523 uint32_t filetype; 524 uint32_t ncmds; 525 uint32_t sizeofcmds; 526 uint32_t flags; 527 uint32_t reserved; 528 }; 529 530 struct load_command { 531 uint32_t cmd; 532 uint32_t cmdsize; 533 }; 534 535 struct segment_command { 536 uint32_t cmd; 537 uint32_t cmdsize; 538 char segname[16]; 539 uint32_t vmaddr; 540 uint32_t vmsize; 541 uint32_t fileoff; 542 uint32_t filesize; 543 uint32_t maxprot; 544 uint32_t initprot; 545 uint32_t nsects; 546 uint32_t flags; 547 }; 548 549 struct segment_command_64 { 550 uint32_t cmd; 551 uint32_t cmdsize; 552 char segname[16]; 553 uint64_t vmaddr; 554 uint64_t vmsize; 555 uint64_t fileoff; 556 uint64_t filesize; 557 uint32_t maxprot; 558 uint32_t initprot; 559 uint32_t nsects; 560 uint32_t flags; 561 }; 562 563 struct section { 564 char sectname[16]; 565 char segname[16]; 566 uint32_t addr; 567 uint32_t size; 568 uint32_t offset; 569 uint32_t align; 570 uint32_t reloff; 571 uint32_t nreloc; 572 uint32_t flags; 573 uint32_t reserved1; 574 uint32_t reserved2; 575 }; 576 577 struct section_64 { 578 char sectname[16]; 579 char segname[16]; 580 uint64_t addr; 581 uint64_t size; 582 uint32_t offset; 583 uint32_t align; 584 uint32_t reloff; 585 uint32_t nreloc; 586 uint32_t flags; 587 uint32_t reserved1; 588 uint32_t reserved2; 589 uint32_t reserved3; 590 }; 591 592 inline bool isVirtualSection(uint8_t type) { 593 return (type == MachO::S_ZEROFILL || type == MachO::S_GB_ZEROFILL || 594 type == MachO::S_THREAD_LOCAL_ZEROFILL); 595 } 596 597 struct fvmlib { 598 uint32_t name; 599 uint32_t minor_version; 600 uint32_t header_addr; 601 }; 602 603 // The fvmlib_command is obsolete and no longer supported. 604 struct fvmlib_command { 605 uint32_t cmd; 606 uint32_t cmdsize; 607 struct fvmlib fvmlib; 608 }; 609 610 struct dylib { 611 uint32_t name; 612 uint32_t timestamp; 613 uint32_t current_version; 614 uint32_t compatibility_version; 615 }; 616 617 struct dylib_command { 618 uint32_t cmd; 619 uint32_t cmdsize; 620 struct dylib dylib; 621 }; 622 623 struct sub_framework_command { 624 uint32_t cmd; 625 uint32_t cmdsize; 626 uint32_t umbrella; 627 }; 628 629 struct sub_client_command { 630 uint32_t cmd; 631 uint32_t cmdsize; 632 uint32_t client; 633 }; 634 635 struct sub_umbrella_command { 636 uint32_t cmd; 637 uint32_t cmdsize; 638 uint32_t sub_umbrella; 639 }; 640 641 struct sub_library_command { 642 uint32_t cmd; 643 uint32_t cmdsize; 644 uint32_t sub_library; 645 }; 646 647 // The prebound_dylib_command is obsolete and no longer supported. 648 struct prebound_dylib_command { 649 uint32_t cmd; 650 uint32_t cmdsize; 651 uint32_t name; 652 uint32_t nmodules; 653 uint32_t linked_modules; 654 }; 655 656 struct dylinker_command { 657 uint32_t cmd; 658 uint32_t cmdsize; 659 uint32_t name; 660 }; 661 662 struct thread_command { 663 uint32_t cmd; 664 uint32_t cmdsize; 665 }; 666 667 struct routines_command { 668 uint32_t cmd; 669 uint32_t cmdsize; 670 uint32_t init_address; 671 uint32_t init_module; 672 uint32_t reserved1; 673 uint32_t reserved2; 674 uint32_t reserved3; 675 uint32_t reserved4; 676 uint32_t reserved5; 677 uint32_t reserved6; 678 }; 679 680 struct routines_command_64 { 681 uint32_t cmd; 682 uint32_t cmdsize; 683 uint64_t init_address; 684 uint64_t init_module; 685 uint64_t reserved1; 686 uint64_t reserved2; 687 uint64_t reserved3; 688 uint64_t reserved4; 689 uint64_t reserved5; 690 uint64_t reserved6; 691 }; 692 693 struct symtab_command { 694 uint32_t cmd; 695 uint32_t cmdsize; 696 uint32_t symoff; 697 uint32_t nsyms; 698 uint32_t stroff; 699 uint32_t strsize; 700 }; 701 702 struct dysymtab_command { 703 uint32_t cmd; 704 uint32_t cmdsize; 705 uint32_t ilocalsym; 706 uint32_t nlocalsym; 707 uint32_t iextdefsym; 708 uint32_t nextdefsym; 709 uint32_t iundefsym; 710 uint32_t nundefsym; 711 uint32_t tocoff; 712 uint32_t ntoc; 713 uint32_t modtaboff; 714 uint32_t nmodtab; 715 uint32_t extrefsymoff; 716 uint32_t nextrefsyms; 717 uint32_t indirectsymoff; 718 uint32_t nindirectsyms; 719 uint32_t extreloff; 720 uint32_t nextrel; 721 uint32_t locreloff; 722 uint32_t nlocrel; 723 }; 724 725 struct dylib_table_of_contents { 726 uint32_t symbol_index; 727 uint32_t module_index; 728 }; 729 730 struct dylib_module { 731 uint32_t module_name; 732 uint32_t iextdefsym; 733 uint32_t nextdefsym; 734 uint32_t irefsym; 735 uint32_t nrefsym; 736 uint32_t ilocalsym; 737 uint32_t nlocalsym; 738 uint32_t iextrel; 739 uint32_t nextrel; 740 uint32_t iinit_iterm; 741 uint32_t ninit_nterm; 742 uint32_t objc_module_info_addr; 743 uint32_t objc_module_info_size; 744 }; 745 746 struct dylib_module_64 { 747 uint32_t module_name; 748 uint32_t iextdefsym; 749 uint32_t nextdefsym; 750 uint32_t irefsym; 751 uint32_t nrefsym; 752 uint32_t ilocalsym; 753 uint32_t nlocalsym; 754 uint32_t iextrel; 755 uint32_t nextrel; 756 uint32_t iinit_iterm; 757 uint32_t ninit_nterm; 758 uint32_t objc_module_info_size; 759 uint64_t objc_module_info_addr; 760 }; 761 762 struct dylib_reference { 763 uint32_t isym : 24, flags : 8; 764 }; 765 766 // The twolevel_hints_command is obsolete and no longer supported. 767 struct twolevel_hints_command { 768 uint32_t cmd; 769 uint32_t cmdsize; 770 uint32_t offset; 771 uint32_t nhints; 772 }; 773 774 // The twolevel_hints_command is obsolete and no longer supported. 775 struct twolevel_hint { 776 uint32_t isub_image : 8, itoc : 24; 777 }; 778 779 // The prebind_cksum_command is obsolete and no longer supported. 780 struct prebind_cksum_command { 781 uint32_t cmd; 782 uint32_t cmdsize; 783 uint32_t cksum; 784 }; 785 786 struct uuid_command { 787 uint32_t cmd; 788 uint32_t cmdsize; 789 uint8_t uuid[16]; 790 }; 791 792 struct rpath_command { 793 uint32_t cmd; 794 uint32_t cmdsize; 795 uint32_t path; 796 }; 797 798 struct linkedit_data_command { 799 uint32_t cmd; 800 uint32_t cmdsize; 801 uint32_t dataoff; 802 uint32_t datasize; 803 }; 804 805 struct data_in_code_entry { 806 uint32_t offset; 807 uint16_t length; 808 uint16_t kind; 809 }; 810 811 struct source_version_command { 812 uint32_t cmd; 813 uint32_t cmdsize; 814 uint64_t version; 815 }; 816 817 struct encryption_info_command { 818 uint32_t cmd; 819 uint32_t cmdsize; 820 uint32_t cryptoff; 821 uint32_t cryptsize; 822 uint32_t cryptid; 823 }; 824 825 struct encryption_info_command_64 { 826 uint32_t cmd; 827 uint32_t cmdsize; 828 uint32_t cryptoff; 829 uint32_t cryptsize; 830 uint32_t cryptid; 831 uint32_t pad; 832 }; 833 834 struct version_min_command { 835 uint32_t cmd; // LC_VERSION_MIN_MACOSX or 836 // LC_VERSION_MIN_IPHONEOS 837 uint32_t cmdsize; // sizeof(struct version_min_command) 838 uint32_t version; // X.Y.Z is encoded in nibbles xxxx.yy.zz 839 uint32_t sdk; // X.Y.Z is encoded in nibbles xxxx.yy.zz 840 }; 841 842 struct note_command { 843 uint32_t cmd; // LC_NOTE 844 uint32_t cmdsize; // sizeof(struct note_command) 845 char data_owner[16]; // owner name for this LC_NOTE 846 uint64_t offset; // file offset of this data 847 uint64_t size; // length of data region 848 }; 849 850 struct build_tool_version { 851 uint32_t tool; // enum for the tool 852 uint32_t version; // version of the tool 853 }; 854 855 struct build_version_command { 856 uint32_t cmd; // LC_BUILD_VERSION 857 uint32_t cmdsize; // sizeof(struct build_version_command) + 858 // ntools * sizeof(struct build_tool_version) 859 uint32_t platform; // platform 860 uint32_t minos; // X.Y.Z is encoded in nibbles xxxx.yy.zz 861 uint32_t sdk; // X.Y.Z is encoded in nibbles xxxx.yy.zz 862 uint32_t ntools; // number of tool entries following this 863 }; 864 865 struct dyld_info_command { 866 uint32_t cmd; 867 uint32_t cmdsize; 868 uint32_t rebase_off; 869 uint32_t rebase_size; 870 uint32_t bind_off; 871 uint32_t bind_size; 872 uint32_t weak_bind_off; 873 uint32_t weak_bind_size; 874 uint32_t lazy_bind_off; 875 uint32_t lazy_bind_size; 876 uint32_t export_off; 877 uint32_t export_size; 878 }; 879 880 struct linker_option_command { 881 uint32_t cmd; 882 uint32_t cmdsize; 883 uint32_t count; 884 }; 885 886 // The symseg_command is obsolete and no longer supported. 887 struct symseg_command { 888 uint32_t cmd; 889 uint32_t cmdsize; 890 uint32_t offset; 891 uint32_t size; 892 }; 893 894 // The ident_command is obsolete and no longer supported. 895 struct ident_command { 896 uint32_t cmd; 897 uint32_t cmdsize; 898 }; 899 900 // The fvmfile_command is obsolete and no longer supported. 901 struct fvmfile_command { 902 uint32_t cmd; 903 uint32_t cmdsize; 904 uint32_t name; 905 uint32_t header_addr; 906 }; 907 908 struct tlv_descriptor_32 { 909 uint32_t thunk; 910 uint32_t key; 911 uint32_t offset; 912 }; 913 914 struct tlv_descriptor_64 { 915 uint64_t thunk; 916 uint64_t key; 917 uint64_t offset; 918 }; 919 920 struct tlv_descriptor { 921 uintptr_t thunk; 922 uintptr_t key; 923 uintptr_t offset; 924 }; 925 926 struct entry_point_command { 927 uint32_t cmd; 928 uint32_t cmdsize; 929 uint64_t entryoff; 930 uint64_t stacksize; 931 }; 932 933 // Structs from <mach-o/fat.h> 934 struct fat_header { 935 uint32_t magic; 936 uint32_t nfat_arch; 937 }; 938 939 struct fat_arch { 940 uint32_t cputype; 941 uint32_t cpusubtype; 942 uint32_t offset; 943 uint32_t size; 944 uint32_t align; 945 }; 946 947 struct fat_arch_64 { 948 uint32_t cputype; 949 uint32_t cpusubtype; 950 uint64_t offset; 951 uint64_t size; 952 uint32_t align; 953 uint32_t reserved; 954 }; 955 956 // Structs from <mach-o/reloc.h> 957 struct relocation_info { 958 int32_t r_address; 959 uint32_t r_symbolnum : 24, r_pcrel : 1, r_length : 2, r_extern : 1, 960 r_type : 4; 961 }; 962 963 struct scattered_relocation_info { 964 #if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && (BYTE_ORDER == BIG_ENDIAN) 965 uint32_t r_scattered : 1, r_pcrel : 1, r_length : 2, r_type : 4, 966 r_address : 24; 967 #else 968 uint32_t r_address : 24, r_type : 4, r_length : 2, r_pcrel : 1, 969 r_scattered : 1; 970 #endif 971 int32_t r_value; 972 }; 973 974 // Structs NOT from <mach-o/reloc.h>, but that make LLVM's life easier 975 struct any_relocation_info { 976 uint32_t r_word0, r_word1; 977 }; 978 979 // Structs from <mach-o/nlist.h> 980 struct nlist_base { 981 uint32_t n_strx; 982 uint8_t n_type; 983 uint8_t n_sect; 984 uint16_t n_desc; 985 }; 986 987 struct nlist { 988 uint32_t n_strx; 989 uint8_t n_type; 990 uint8_t n_sect; 991 int16_t n_desc; 992 uint32_t n_value; 993 }; 994 995 struct nlist_64 { 996 uint32_t n_strx; 997 uint8_t n_type; 998 uint8_t n_sect; 999 uint16_t n_desc; 1000 uint64_t n_value; 1001 }; 1002 1003 // Byte order swapping functions for MachO structs 1004 1005 inline void swapStruct(fat_header &mh) { 1006 sys::swapByteOrder(mh.magic); 1007 sys::swapByteOrder(mh.nfat_arch); 1008 } 1009 1010 inline void swapStruct(fat_arch &mh) { 1011 sys::swapByteOrder(mh.cputype); 1012 sys::swapByteOrder(mh.cpusubtype); 1013 sys::swapByteOrder(mh.offset); 1014 sys::swapByteOrder(mh.size); 1015 sys::swapByteOrder(mh.align); 1016 } 1017 1018 inline void swapStruct(fat_arch_64 &mh) { 1019 sys::swapByteOrder(mh.cputype); 1020 sys::swapByteOrder(mh.cpusubtype); 1021 sys::swapByteOrder(mh.offset); 1022 sys::swapByteOrder(mh.size); 1023 sys::swapByteOrder(mh.align); 1024 sys::swapByteOrder(mh.reserved); 1025 } 1026 1027 inline void swapStruct(mach_header &mh) { 1028 sys::swapByteOrder(mh.magic); 1029 sys::swapByteOrder(mh.cputype); 1030 sys::swapByteOrder(mh.cpusubtype); 1031 sys::swapByteOrder(mh.filetype); 1032 sys::swapByteOrder(mh.ncmds); 1033 sys::swapByteOrder(mh.sizeofcmds); 1034 sys::swapByteOrder(mh.flags); 1035 } 1036 1037 inline void swapStruct(mach_header_64 &H) { 1038 sys::swapByteOrder(H.magic); 1039 sys::swapByteOrder(H.cputype); 1040 sys::swapByteOrder(H.cpusubtype); 1041 sys::swapByteOrder(H.filetype); 1042 sys::swapByteOrder(H.ncmds); 1043 sys::swapByteOrder(H.sizeofcmds); 1044 sys::swapByteOrder(H.flags); 1045 sys::swapByteOrder(H.reserved); 1046 } 1047 1048 inline void swapStruct(load_command &lc) { 1049 sys::swapByteOrder(lc.cmd); 1050 sys::swapByteOrder(lc.cmdsize); 1051 } 1052 1053 inline void swapStruct(symtab_command &lc) { 1054 sys::swapByteOrder(lc.cmd); 1055 sys::swapByteOrder(lc.cmdsize); 1056 sys::swapByteOrder(lc.symoff); 1057 sys::swapByteOrder(lc.nsyms); 1058 sys::swapByteOrder(lc.stroff); 1059 sys::swapByteOrder(lc.strsize); 1060 } 1061 1062 inline void swapStruct(segment_command_64 &seg) { 1063 sys::swapByteOrder(seg.cmd); 1064 sys::swapByteOrder(seg.cmdsize); 1065 sys::swapByteOrder(seg.vmaddr); 1066 sys::swapByteOrder(seg.vmsize); 1067 sys::swapByteOrder(seg.fileoff); 1068 sys::swapByteOrder(seg.filesize); 1069 sys::swapByteOrder(seg.maxprot); 1070 sys::swapByteOrder(seg.initprot); 1071 sys::swapByteOrder(seg.nsects); 1072 sys::swapByteOrder(seg.flags); 1073 } 1074 1075 inline void swapStruct(segment_command &seg) { 1076 sys::swapByteOrder(seg.cmd); 1077 sys::swapByteOrder(seg.cmdsize); 1078 sys::swapByteOrder(seg.vmaddr); 1079 sys::swapByteOrder(seg.vmsize); 1080 sys::swapByteOrder(seg.fileoff); 1081 sys::swapByteOrder(seg.filesize); 1082 sys::swapByteOrder(seg.maxprot); 1083 sys::swapByteOrder(seg.initprot); 1084 sys::swapByteOrder(seg.nsects); 1085 sys::swapByteOrder(seg.flags); 1086 } 1087 1088 inline void swapStruct(section_64 §) { 1089 sys::swapByteOrder(sect.addr); 1090 sys::swapByteOrder(sect.size); 1091 sys::swapByteOrder(sect.offset); 1092 sys::swapByteOrder(sect.align); 1093 sys::swapByteOrder(sect.reloff); 1094 sys::swapByteOrder(sect.nreloc); 1095 sys::swapByteOrder(sect.flags); 1096 sys::swapByteOrder(sect.reserved1); 1097 sys::swapByteOrder(sect.reserved2); 1098 } 1099 1100 inline void swapStruct(section §) { 1101 sys::swapByteOrder(sect.addr); 1102 sys::swapByteOrder(sect.size); 1103 sys::swapByteOrder(sect.offset); 1104 sys::swapByteOrder(sect.align); 1105 sys::swapByteOrder(sect.reloff); 1106 sys::swapByteOrder(sect.nreloc); 1107 sys::swapByteOrder(sect.flags); 1108 sys::swapByteOrder(sect.reserved1); 1109 sys::swapByteOrder(sect.reserved2); 1110 } 1111 1112 inline void swapStruct(dyld_info_command &info) { 1113 sys::swapByteOrder(info.cmd); 1114 sys::swapByteOrder(info.cmdsize); 1115 sys::swapByteOrder(info.rebase_off); 1116 sys::swapByteOrder(info.rebase_size); 1117 sys::swapByteOrder(info.bind_off); 1118 sys::swapByteOrder(info.bind_size); 1119 sys::swapByteOrder(info.weak_bind_off); 1120 sys::swapByteOrder(info.weak_bind_size); 1121 sys::swapByteOrder(info.lazy_bind_off); 1122 sys::swapByteOrder(info.lazy_bind_size); 1123 sys::swapByteOrder(info.export_off); 1124 sys::swapByteOrder(info.export_size); 1125 } 1126 1127 inline void swapStruct(dylib_command &d) { 1128 sys::swapByteOrder(d.cmd); 1129 sys::swapByteOrder(d.cmdsize); 1130 sys::swapByteOrder(d.dylib.name); 1131 sys::swapByteOrder(d.dylib.timestamp); 1132 sys::swapByteOrder(d.dylib.current_version); 1133 sys::swapByteOrder(d.dylib.compatibility_version); 1134 } 1135 1136 inline void swapStruct(sub_framework_command &s) { 1137 sys::swapByteOrder(s.cmd); 1138 sys::swapByteOrder(s.cmdsize); 1139 sys::swapByteOrder(s.umbrella); 1140 } 1141 1142 inline void swapStruct(sub_umbrella_command &s) { 1143 sys::swapByteOrder(s.cmd); 1144 sys::swapByteOrder(s.cmdsize); 1145 sys::swapByteOrder(s.sub_umbrella); 1146 } 1147 1148 inline void swapStruct(sub_library_command &s) { 1149 sys::swapByteOrder(s.cmd); 1150 sys::swapByteOrder(s.cmdsize); 1151 sys::swapByteOrder(s.sub_library); 1152 } 1153 1154 inline void swapStruct(sub_client_command &s) { 1155 sys::swapByteOrder(s.cmd); 1156 sys::swapByteOrder(s.cmdsize); 1157 sys::swapByteOrder(s.client); 1158 } 1159 1160 inline void swapStruct(routines_command &r) { 1161 sys::swapByteOrder(r.cmd); 1162 sys::swapByteOrder(r.cmdsize); 1163 sys::swapByteOrder(r.init_address); 1164 sys::swapByteOrder(r.init_module); 1165 sys::swapByteOrder(r.reserved1); 1166 sys::swapByteOrder(r.reserved2); 1167 sys::swapByteOrder(r.reserved3); 1168 sys::swapByteOrder(r.reserved4); 1169 sys::swapByteOrder(r.reserved5); 1170 sys::swapByteOrder(r.reserved6); 1171 } 1172 1173 inline void swapStruct(routines_command_64 &r) { 1174 sys::swapByteOrder(r.cmd); 1175 sys::swapByteOrder(r.cmdsize); 1176 sys::swapByteOrder(r.init_address); 1177 sys::swapByteOrder(r.init_module); 1178 sys::swapByteOrder(r.reserved1); 1179 sys::swapByteOrder(r.reserved2); 1180 sys::swapByteOrder(r.reserved3); 1181 sys::swapByteOrder(r.reserved4); 1182 sys::swapByteOrder(r.reserved5); 1183 sys::swapByteOrder(r.reserved6); 1184 } 1185 1186 inline void swapStruct(thread_command &t) { 1187 sys::swapByteOrder(t.cmd); 1188 sys::swapByteOrder(t.cmdsize); 1189 } 1190 1191 inline void swapStruct(dylinker_command &d) { 1192 sys::swapByteOrder(d.cmd); 1193 sys::swapByteOrder(d.cmdsize); 1194 sys::swapByteOrder(d.name); 1195 } 1196 1197 inline void swapStruct(uuid_command &u) { 1198 sys::swapByteOrder(u.cmd); 1199 sys::swapByteOrder(u.cmdsize); 1200 } 1201 1202 inline void swapStruct(rpath_command &r) { 1203 sys::swapByteOrder(r.cmd); 1204 sys::swapByteOrder(r.cmdsize); 1205 sys::swapByteOrder(r.path); 1206 } 1207 1208 inline void swapStruct(source_version_command &s) { 1209 sys::swapByteOrder(s.cmd); 1210 sys::swapByteOrder(s.cmdsize); 1211 sys::swapByteOrder(s.version); 1212 } 1213 1214 inline void swapStruct(entry_point_command &e) { 1215 sys::swapByteOrder(e.cmd); 1216 sys::swapByteOrder(e.cmdsize); 1217 sys::swapByteOrder(e.entryoff); 1218 sys::swapByteOrder(e.stacksize); 1219 } 1220 1221 inline void swapStruct(encryption_info_command &e) { 1222 sys::swapByteOrder(e.cmd); 1223 sys::swapByteOrder(e.cmdsize); 1224 sys::swapByteOrder(e.cryptoff); 1225 sys::swapByteOrder(e.cryptsize); 1226 sys::swapByteOrder(e.cryptid); 1227 } 1228 1229 inline void swapStruct(encryption_info_command_64 &e) { 1230 sys::swapByteOrder(e.cmd); 1231 sys::swapByteOrder(e.cmdsize); 1232 sys::swapByteOrder(e.cryptoff); 1233 sys::swapByteOrder(e.cryptsize); 1234 sys::swapByteOrder(e.cryptid); 1235 sys::swapByteOrder(e.pad); 1236 } 1237 1238 inline void swapStruct(dysymtab_command &dst) { 1239 sys::swapByteOrder(dst.cmd); 1240 sys::swapByteOrder(dst.cmdsize); 1241 sys::swapByteOrder(dst.ilocalsym); 1242 sys::swapByteOrder(dst.nlocalsym); 1243 sys::swapByteOrder(dst.iextdefsym); 1244 sys::swapByteOrder(dst.nextdefsym); 1245 sys::swapByteOrder(dst.iundefsym); 1246 sys::swapByteOrder(dst.nundefsym); 1247 sys::swapByteOrder(dst.tocoff); 1248 sys::swapByteOrder(dst.ntoc); 1249 sys::swapByteOrder(dst.modtaboff); 1250 sys::swapByteOrder(dst.nmodtab); 1251 sys::swapByteOrder(dst.extrefsymoff); 1252 sys::swapByteOrder(dst.nextrefsyms); 1253 sys::swapByteOrder(dst.indirectsymoff); 1254 sys::swapByteOrder(dst.nindirectsyms); 1255 sys::swapByteOrder(dst.extreloff); 1256 sys::swapByteOrder(dst.nextrel); 1257 sys::swapByteOrder(dst.locreloff); 1258 sys::swapByteOrder(dst.nlocrel); 1259 } 1260 1261 inline void swapStruct(any_relocation_info &reloc) { 1262 sys::swapByteOrder(reloc.r_word0); 1263 sys::swapByteOrder(reloc.r_word1); 1264 } 1265 1266 inline void swapStruct(nlist_base &S) { 1267 sys::swapByteOrder(S.n_strx); 1268 sys::swapByteOrder(S.n_desc); 1269 } 1270 1271 inline void swapStruct(nlist &sym) { 1272 sys::swapByteOrder(sym.n_strx); 1273 sys::swapByteOrder(sym.n_desc); 1274 sys::swapByteOrder(sym.n_value); 1275 } 1276 1277 inline void swapStruct(nlist_64 &sym) { 1278 sys::swapByteOrder(sym.n_strx); 1279 sys::swapByteOrder(sym.n_desc); 1280 sys::swapByteOrder(sym.n_value); 1281 } 1282 1283 inline void swapStruct(linkedit_data_command &C) { 1284 sys::swapByteOrder(C.cmd); 1285 sys::swapByteOrder(C.cmdsize); 1286 sys::swapByteOrder(C.dataoff); 1287 sys::swapByteOrder(C.datasize); 1288 } 1289 1290 inline void swapStruct(linker_option_command &C) { 1291 sys::swapByteOrder(C.cmd); 1292 sys::swapByteOrder(C.cmdsize); 1293 sys::swapByteOrder(C.count); 1294 } 1295 1296 inline void swapStruct(version_min_command &C) { 1297 sys::swapByteOrder(C.cmd); 1298 sys::swapByteOrder(C.cmdsize); 1299 sys::swapByteOrder(C.version); 1300 sys::swapByteOrder(C.sdk); 1301 } 1302 1303 inline void swapStruct(note_command &C) { 1304 sys::swapByteOrder(C.cmd); 1305 sys::swapByteOrder(C.cmdsize); 1306 sys::swapByteOrder(C.offset); 1307 sys::swapByteOrder(C.size); 1308 } 1309 1310 inline void swapStruct(build_version_command &C) { 1311 sys::swapByteOrder(C.cmd); 1312 sys::swapByteOrder(C.cmdsize); 1313 sys::swapByteOrder(C.platform); 1314 sys::swapByteOrder(C.minos); 1315 sys::swapByteOrder(C.sdk); 1316 sys::swapByteOrder(C.ntools); 1317 } 1318 1319 inline void swapStruct(build_tool_version &C) { 1320 sys::swapByteOrder(C.tool); 1321 sys::swapByteOrder(C.version); 1322 } 1323 1324 inline void swapStruct(data_in_code_entry &C) { 1325 sys::swapByteOrder(C.offset); 1326 sys::swapByteOrder(C.length); 1327 sys::swapByteOrder(C.kind); 1328 } 1329 1330 inline void swapStruct(uint32_t &C) { sys::swapByteOrder(C); } 1331 1332 // The prebind_cksum_command is obsolete and no longer supported. 1333 inline void swapStruct(prebind_cksum_command &C) { 1334 sys::swapByteOrder(C.cmd); 1335 sys::swapByteOrder(C.cmdsize); 1336 sys::swapByteOrder(C.cksum); 1337 } 1338 1339 // The twolevel_hints_command is obsolete and no longer supported. 1340 inline void swapStruct(twolevel_hints_command &C) { 1341 sys::swapByteOrder(C.cmd); 1342 sys::swapByteOrder(C.cmdsize); 1343 sys::swapByteOrder(C.offset); 1344 sys::swapByteOrder(C.nhints); 1345 } 1346 1347 // The prebound_dylib_command is obsolete and no longer supported. 1348 inline void swapStruct(prebound_dylib_command &C) { 1349 sys::swapByteOrder(C.cmd); 1350 sys::swapByteOrder(C.cmdsize); 1351 sys::swapByteOrder(C.name); 1352 sys::swapByteOrder(C.nmodules); 1353 sys::swapByteOrder(C.linked_modules); 1354 } 1355 1356 // The fvmfile_command is obsolete and no longer supported. 1357 inline void swapStruct(fvmfile_command &C) { 1358 sys::swapByteOrder(C.cmd); 1359 sys::swapByteOrder(C.cmdsize); 1360 sys::swapByteOrder(C.name); 1361 sys::swapByteOrder(C.header_addr); 1362 } 1363 1364 // The symseg_command is obsolete and no longer supported. 1365 inline void swapStruct(symseg_command &C) { 1366 sys::swapByteOrder(C.cmd); 1367 sys::swapByteOrder(C.cmdsize); 1368 sys::swapByteOrder(C.offset); 1369 sys::swapByteOrder(C.size); 1370 } 1371 1372 // The ident_command is obsolete and no longer supported. 1373 inline void swapStruct(ident_command &C) { 1374 sys::swapByteOrder(C.cmd); 1375 sys::swapByteOrder(C.cmdsize); 1376 } 1377 1378 inline void swapStruct(fvmlib &C) { 1379 sys::swapByteOrder(C.name); 1380 sys::swapByteOrder(C.minor_version); 1381 sys::swapByteOrder(C.header_addr); 1382 } 1383 1384 // The fvmlib_command is obsolete and no longer supported. 1385 inline void swapStruct(fvmlib_command &C) { 1386 sys::swapByteOrder(C.cmd); 1387 sys::swapByteOrder(C.cmdsize); 1388 swapStruct(C.fvmlib); 1389 } 1390 1391 // Get/Set functions from <mach-o/nlist.h> 1392 1393 inline uint16_t GET_LIBRARY_ORDINAL(uint16_t n_desc) { 1394 return (((n_desc) >> 8u) & 0xffu); 1395 } 1396 1397 inline void SET_LIBRARY_ORDINAL(uint16_t &n_desc, uint8_t ordinal) { 1398 n_desc = (((n_desc)&0x00ff) | (((ordinal)&0xff) << 8)); 1399 } 1400 1401 inline uint8_t GET_COMM_ALIGN(uint16_t n_desc) { 1402 return (n_desc >> 8u) & 0x0fu; 1403 } 1404 1405 inline void SET_COMM_ALIGN(uint16_t &n_desc, uint8_t align) { 1406 n_desc = ((n_desc & 0xf0ffu) | ((align & 0x0fu) << 8u)); 1407 } 1408 1409 // Enums from <mach/machine.h> 1410 enum : uint32_t { 1411 // Capability bits used in the definition of cpu_type. 1412 CPU_ARCH_MASK = 0xff000000, // Mask for architecture bits 1413 CPU_ARCH_ABI64 = 0x01000000, // 64 bit ABI 1414 CPU_ARCH_ABI64_32 = 0x02000000, // ILP32 ABI on 64-bit hardware 1415 }; 1416 1417 // Constants for the cputype field. 1418 enum CPUType { 1419 CPU_TYPE_ANY = -1, 1420 CPU_TYPE_X86 = 7, 1421 CPU_TYPE_I386 = CPU_TYPE_X86, 1422 CPU_TYPE_X86_64 = CPU_TYPE_X86 | CPU_ARCH_ABI64, 1423 /* CPU_TYPE_MIPS = 8, */ 1424 CPU_TYPE_MC98000 = 10, // Old Motorola PowerPC 1425 CPU_TYPE_ARM = 12, 1426 CPU_TYPE_ARM64 = CPU_TYPE_ARM | CPU_ARCH_ABI64, 1427 CPU_TYPE_ARM64_32 = CPU_TYPE_ARM | CPU_ARCH_ABI64_32, 1428 CPU_TYPE_SPARC = 14, 1429 CPU_TYPE_POWERPC = 18, 1430 CPU_TYPE_POWERPC64 = CPU_TYPE_POWERPC | CPU_ARCH_ABI64 1431 }; 1432 1433 enum : uint32_t { 1434 // Capability bits used in the definition of cpusubtype. 1435 CPU_SUBTYPE_MASK = 0xff000000, // Mask for architecture bits 1436 CPU_SUBTYPE_LIB64 = 0x80000000, // 64 bit libraries 1437 1438 // Special CPU subtype constants. 1439 CPU_SUBTYPE_MULTIPLE = ~0u 1440 }; 1441 1442 // Constants for the cpusubtype field. 1443 enum CPUSubTypeX86 { 1444 CPU_SUBTYPE_I386_ALL = 3, 1445 CPU_SUBTYPE_386 = 3, 1446 CPU_SUBTYPE_486 = 4, 1447 CPU_SUBTYPE_486SX = 0x84, 1448 CPU_SUBTYPE_586 = 5, 1449 CPU_SUBTYPE_PENT = CPU_SUBTYPE_586, 1450 CPU_SUBTYPE_PENTPRO = 0x16, 1451 CPU_SUBTYPE_PENTII_M3 = 0x36, 1452 CPU_SUBTYPE_PENTII_M5 = 0x56, 1453 CPU_SUBTYPE_CELERON = 0x67, 1454 CPU_SUBTYPE_CELERON_MOBILE = 0x77, 1455 CPU_SUBTYPE_PENTIUM_3 = 0x08, 1456 CPU_SUBTYPE_PENTIUM_3_M = 0x18, 1457 CPU_SUBTYPE_PENTIUM_3_XEON = 0x28, 1458 CPU_SUBTYPE_PENTIUM_M = 0x09, 1459 CPU_SUBTYPE_PENTIUM_4 = 0x0a, 1460 CPU_SUBTYPE_PENTIUM_4_M = 0x1a, 1461 CPU_SUBTYPE_ITANIUM = 0x0b, 1462 CPU_SUBTYPE_ITANIUM_2 = 0x1b, 1463 CPU_SUBTYPE_XEON = 0x0c, 1464 CPU_SUBTYPE_XEON_MP = 0x1c, 1465 1466 CPU_SUBTYPE_X86_ALL = 3, 1467 CPU_SUBTYPE_X86_64_ALL = 3, 1468 CPU_SUBTYPE_X86_ARCH1 = 4, 1469 CPU_SUBTYPE_X86_64_H = 8 1470 }; 1471 inline int CPU_SUBTYPE_INTEL(int Family, int Model) { 1472 return Family | (Model << 4); 1473 } 1474 inline int CPU_SUBTYPE_INTEL_FAMILY(CPUSubTypeX86 ST) { 1475 return ((int)ST) & 0x0f; 1476 } 1477 inline int CPU_SUBTYPE_INTEL_MODEL(CPUSubTypeX86 ST) { return ((int)ST) >> 4; } 1478 enum { CPU_SUBTYPE_INTEL_FAMILY_MAX = 15, CPU_SUBTYPE_INTEL_MODEL_ALL = 0 }; 1479 1480 enum CPUSubTypeARM { 1481 CPU_SUBTYPE_ARM_ALL = 0, 1482 CPU_SUBTYPE_ARM_V4T = 5, 1483 CPU_SUBTYPE_ARM_V6 = 6, 1484 CPU_SUBTYPE_ARM_V5 = 7, 1485 CPU_SUBTYPE_ARM_V5TEJ = 7, 1486 CPU_SUBTYPE_ARM_XSCALE = 8, 1487 CPU_SUBTYPE_ARM_V7 = 9, 1488 // unused ARM_V7F = 10, 1489 CPU_SUBTYPE_ARM_V7S = 11, 1490 CPU_SUBTYPE_ARM_V7K = 12, 1491 CPU_SUBTYPE_ARM_V6M = 14, 1492 CPU_SUBTYPE_ARM_V7M = 15, 1493 CPU_SUBTYPE_ARM_V7EM = 16 1494 }; 1495 1496 enum CPUSubTypeARM64 { 1497 CPU_SUBTYPE_ARM64_ALL = 0, 1498 CPU_SUBTYPE_ARM64_V8 = 1, 1499 CPU_SUBTYPE_ARM64E = 2, 1500 }; 1501 1502 enum CPUSubTypeARM64_32 { CPU_SUBTYPE_ARM64_32_V8 = 1 }; 1503 1504 enum CPUSubTypeSPARC { CPU_SUBTYPE_SPARC_ALL = 0 }; 1505 1506 enum CPUSubTypePowerPC { 1507 CPU_SUBTYPE_POWERPC_ALL = 0, 1508 CPU_SUBTYPE_POWERPC_601 = 1, 1509 CPU_SUBTYPE_POWERPC_602 = 2, 1510 CPU_SUBTYPE_POWERPC_603 = 3, 1511 CPU_SUBTYPE_POWERPC_603e = 4, 1512 CPU_SUBTYPE_POWERPC_603ev = 5, 1513 CPU_SUBTYPE_POWERPC_604 = 6, 1514 CPU_SUBTYPE_POWERPC_604e = 7, 1515 CPU_SUBTYPE_POWERPC_620 = 8, 1516 CPU_SUBTYPE_POWERPC_750 = 9, 1517 CPU_SUBTYPE_POWERPC_7400 = 10, 1518 CPU_SUBTYPE_POWERPC_7450 = 11, 1519 CPU_SUBTYPE_POWERPC_970 = 100, 1520 1521 CPU_SUBTYPE_MC980000_ALL = CPU_SUBTYPE_POWERPC_ALL, 1522 CPU_SUBTYPE_MC98601 = CPU_SUBTYPE_POWERPC_601 1523 }; 1524 1525 Expected<uint32_t> getCPUType(const Triple &T); 1526 Expected<uint32_t> getCPUSubType(const Triple &T); 1527 1528 struct x86_thread_state32_t { 1529 uint32_t eax; 1530 uint32_t ebx; 1531 uint32_t ecx; 1532 uint32_t edx; 1533 uint32_t edi; 1534 uint32_t esi; 1535 uint32_t ebp; 1536 uint32_t esp; 1537 uint32_t ss; 1538 uint32_t eflags; 1539 uint32_t eip; 1540 uint32_t cs; 1541 uint32_t ds; 1542 uint32_t es; 1543 uint32_t fs; 1544 uint32_t gs; 1545 }; 1546 1547 struct x86_thread_state64_t { 1548 uint64_t rax; 1549 uint64_t rbx; 1550 uint64_t rcx; 1551 uint64_t rdx; 1552 uint64_t rdi; 1553 uint64_t rsi; 1554 uint64_t rbp; 1555 uint64_t rsp; 1556 uint64_t r8; 1557 uint64_t r9; 1558 uint64_t r10; 1559 uint64_t r11; 1560 uint64_t r12; 1561 uint64_t r13; 1562 uint64_t r14; 1563 uint64_t r15; 1564 uint64_t rip; 1565 uint64_t rflags; 1566 uint64_t cs; 1567 uint64_t fs; 1568 uint64_t gs; 1569 }; 1570 1571 enum x86_fp_control_precis { 1572 x86_FP_PREC_24B = 0, 1573 x86_FP_PREC_53B = 2, 1574 x86_FP_PREC_64B = 3 1575 }; 1576 1577 enum x86_fp_control_rc { 1578 x86_FP_RND_NEAR = 0, 1579 x86_FP_RND_DOWN = 1, 1580 x86_FP_RND_UP = 2, 1581 x86_FP_CHOP = 3 1582 }; 1583 1584 struct fp_control_t { 1585 unsigned short invalid : 1, denorm : 1, zdiv : 1, ovrfl : 1, undfl : 1, 1586 precis : 1, : 2, pc : 2, rc : 2, : 1, : 3; 1587 }; 1588 1589 struct fp_status_t { 1590 unsigned short invalid : 1, denorm : 1, zdiv : 1, ovrfl : 1, undfl : 1, 1591 precis : 1, stkflt : 1, errsumm : 1, c0 : 1, c1 : 1, c2 : 1, tos : 3, 1592 c3 : 1, busy : 1; 1593 }; 1594 1595 struct mmst_reg_t { 1596 char mmst_reg[10]; 1597 char mmst_rsrv[6]; 1598 }; 1599 1600 struct xmm_reg_t { 1601 char xmm_reg[16]; 1602 }; 1603 1604 struct x86_float_state64_t { 1605 int32_t fpu_reserved[2]; 1606 fp_control_t fpu_fcw; 1607 fp_status_t fpu_fsw; 1608 uint8_t fpu_ftw; 1609 uint8_t fpu_rsrv1; 1610 uint16_t fpu_fop; 1611 uint32_t fpu_ip; 1612 uint16_t fpu_cs; 1613 uint16_t fpu_rsrv2; 1614 uint32_t fpu_dp; 1615 uint16_t fpu_ds; 1616 uint16_t fpu_rsrv3; 1617 uint32_t fpu_mxcsr; 1618 uint32_t fpu_mxcsrmask; 1619 mmst_reg_t fpu_stmm0; 1620 mmst_reg_t fpu_stmm1; 1621 mmst_reg_t fpu_stmm2; 1622 mmst_reg_t fpu_stmm3; 1623 mmst_reg_t fpu_stmm4; 1624 mmst_reg_t fpu_stmm5; 1625 mmst_reg_t fpu_stmm6; 1626 mmst_reg_t fpu_stmm7; 1627 xmm_reg_t fpu_xmm0; 1628 xmm_reg_t fpu_xmm1; 1629 xmm_reg_t fpu_xmm2; 1630 xmm_reg_t fpu_xmm3; 1631 xmm_reg_t fpu_xmm4; 1632 xmm_reg_t fpu_xmm5; 1633 xmm_reg_t fpu_xmm6; 1634 xmm_reg_t fpu_xmm7; 1635 xmm_reg_t fpu_xmm8; 1636 xmm_reg_t fpu_xmm9; 1637 xmm_reg_t fpu_xmm10; 1638 xmm_reg_t fpu_xmm11; 1639 xmm_reg_t fpu_xmm12; 1640 xmm_reg_t fpu_xmm13; 1641 xmm_reg_t fpu_xmm14; 1642 xmm_reg_t fpu_xmm15; 1643 char fpu_rsrv4[6 * 16]; 1644 uint32_t fpu_reserved1; 1645 }; 1646 1647 struct x86_exception_state64_t { 1648 uint16_t trapno; 1649 uint16_t cpu; 1650 uint32_t err; 1651 uint64_t faultvaddr; 1652 }; 1653 1654 inline void swapStruct(x86_thread_state32_t &x) { 1655 sys::swapByteOrder(x.eax); 1656 sys::swapByteOrder(x.ebx); 1657 sys::swapByteOrder(x.ecx); 1658 sys::swapByteOrder(x.edx); 1659 sys::swapByteOrder(x.edi); 1660 sys::swapByteOrder(x.esi); 1661 sys::swapByteOrder(x.ebp); 1662 sys::swapByteOrder(x.esp); 1663 sys::swapByteOrder(x.ss); 1664 sys::swapByteOrder(x.eflags); 1665 sys::swapByteOrder(x.eip); 1666 sys::swapByteOrder(x.cs); 1667 sys::swapByteOrder(x.ds); 1668 sys::swapByteOrder(x.es); 1669 sys::swapByteOrder(x.fs); 1670 sys::swapByteOrder(x.gs); 1671 } 1672 1673 inline void swapStruct(x86_thread_state64_t &x) { 1674 sys::swapByteOrder(x.rax); 1675 sys::swapByteOrder(x.rbx); 1676 sys::swapByteOrder(x.rcx); 1677 sys::swapByteOrder(x.rdx); 1678 sys::swapByteOrder(x.rdi); 1679 sys::swapByteOrder(x.rsi); 1680 sys::swapByteOrder(x.rbp); 1681 sys::swapByteOrder(x.rsp); 1682 sys::swapByteOrder(x.r8); 1683 sys::swapByteOrder(x.r9); 1684 sys::swapByteOrder(x.r10); 1685 sys::swapByteOrder(x.r11); 1686 sys::swapByteOrder(x.r12); 1687 sys::swapByteOrder(x.r13); 1688 sys::swapByteOrder(x.r14); 1689 sys::swapByteOrder(x.r15); 1690 sys::swapByteOrder(x.rip); 1691 sys::swapByteOrder(x.rflags); 1692 sys::swapByteOrder(x.cs); 1693 sys::swapByteOrder(x.fs); 1694 sys::swapByteOrder(x.gs); 1695 } 1696 1697 inline void swapStruct(x86_float_state64_t &x) { 1698 sys::swapByteOrder(x.fpu_reserved[0]); 1699 sys::swapByteOrder(x.fpu_reserved[1]); 1700 // TODO swap: fp_control_t fpu_fcw; 1701 // TODO swap: fp_status_t fpu_fsw; 1702 sys::swapByteOrder(x.fpu_fop); 1703 sys::swapByteOrder(x.fpu_ip); 1704 sys::swapByteOrder(x.fpu_cs); 1705 sys::swapByteOrder(x.fpu_rsrv2); 1706 sys::swapByteOrder(x.fpu_dp); 1707 sys::swapByteOrder(x.fpu_ds); 1708 sys::swapByteOrder(x.fpu_rsrv3); 1709 sys::swapByteOrder(x.fpu_mxcsr); 1710 sys::swapByteOrder(x.fpu_mxcsrmask); 1711 sys::swapByteOrder(x.fpu_reserved1); 1712 } 1713 1714 inline void swapStruct(x86_exception_state64_t &x) { 1715 sys::swapByteOrder(x.trapno); 1716 sys::swapByteOrder(x.cpu); 1717 sys::swapByteOrder(x.err); 1718 sys::swapByteOrder(x.faultvaddr); 1719 } 1720 1721 struct x86_state_hdr_t { 1722 uint32_t flavor; 1723 uint32_t count; 1724 }; 1725 1726 struct x86_thread_state_t { 1727 x86_state_hdr_t tsh; 1728 union { 1729 x86_thread_state64_t ts64; 1730 x86_thread_state32_t ts32; 1731 } uts; 1732 }; 1733 1734 struct x86_float_state_t { 1735 x86_state_hdr_t fsh; 1736 union { 1737 x86_float_state64_t fs64; 1738 } ufs; 1739 }; 1740 1741 struct x86_exception_state_t { 1742 x86_state_hdr_t esh; 1743 union { 1744 x86_exception_state64_t es64; 1745 } ues; 1746 }; 1747 1748 inline void swapStruct(x86_state_hdr_t &x) { 1749 sys::swapByteOrder(x.flavor); 1750 sys::swapByteOrder(x.count); 1751 } 1752 1753 enum X86ThreadFlavors { 1754 x86_THREAD_STATE32 = 1, 1755 x86_FLOAT_STATE32 = 2, 1756 x86_EXCEPTION_STATE32 = 3, 1757 x86_THREAD_STATE64 = 4, 1758 x86_FLOAT_STATE64 = 5, 1759 x86_EXCEPTION_STATE64 = 6, 1760 x86_THREAD_STATE = 7, 1761 x86_FLOAT_STATE = 8, 1762 x86_EXCEPTION_STATE = 9, 1763 x86_DEBUG_STATE32 = 10, 1764 x86_DEBUG_STATE64 = 11, 1765 x86_DEBUG_STATE = 12 1766 }; 1767 1768 inline void swapStruct(x86_thread_state_t &x) { 1769 swapStruct(x.tsh); 1770 if (x.tsh.flavor == x86_THREAD_STATE64) 1771 swapStruct(x.uts.ts64); 1772 } 1773 1774 inline void swapStruct(x86_float_state_t &x) { 1775 swapStruct(x.fsh); 1776 if (x.fsh.flavor == x86_FLOAT_STATE64) 1777 swapStruct(x.ufs.fs64); 1778 } 1779 1780 inline void swapStruct(x86_exception_state_t &x) { 1781 swapStruct(x.esh); 1782 if (x.esh.flavor == x86_EXCEPTION_STATE64) 1783 swapStruct(x.ues.es64); 1784 } 1785 1786 const uint32_t x86_THREAD_STATE32_COUNT = 1787 sizeof(x86_thread_state32_t) / sizeof(uint32_t); 1788 1789 const uint32_t x86_THREAD_STATE64_COUNT = 1790 sizeof(x86_thread_state64_t) / sizeof(uint32_t); 1791 const uint32_t x86_FLOAT_STATE64_COUNT = 1792 sizeof(x86_float_state64_t) / sizeof(uint32_t); 1793 const uint32_t x86_EXCEPTION_STATE64_COUNT = 1794 sizeof(x86_exception_state64_t) / sizeof(uint32_t); 1795 1796 const uint32_t x86_THREAD_STATE_COUNT = 1797 sizeof(x86_thread_state_t) / sizeof(uint32_t); 1798 const uint32_t x86_FLOAT_STATE_COUNT = 1799 sizeof(x86_float_state_t) / sizeof(uint32_t); 1800 const uint32_t x86_EXCEPTION_STATE_COUNT = 1801 sizeof(x86_exception_state_t) / sizeof(uint32_t); 1802 1803 struct arm_thread_state32_t { 1804 uint32_t r[13]; 1805 uint32_t sp; 1806 uint32_t lr; 1807 uint32_t pc; 1808 uint32_t cpsr; 1809 }; 1810 1811 inline void swapStruct(arm_thread_state32_t &x) { 1812 for (int i = 0; i < 13; i++) 1813 sys::swapByteOrder(x.r[i]); 1814 sys::swapByteOrder(x.sp); 1815 sys::swapByteOrder(x.lr); 1816 sys::swapByteOrder(x.pc); 1817 sys::swapByteOrder(x.cpsr); 1818 } 1819 1820 struct arm_thread_state64_t { 1821 uint64_t x[29]; 1822 uint64_t fp; 1823 uint64_t lr; 1824 uint64_t sp; 1825 uint64_t pc; 1826 uint32_t cpsr; 1827 uint32_t pad; 1828 }; 1829 1830 inline void swapStruct(arm_thread_state64_t &x) { 1831 for (int i = 0; i < 29; i++) 1832 sys::swapByteOrder(x.x[i]); 1833 sys::swapByteOrder(x.fp); 1834 sys::swapByteOrder(x.lr); 1835 sys::swapByteOrder(x.sp); 1836 sys::swapByteOrder(x.pc); 1837 sys::swapByteOrder(x.cpsr); 1838 } 1839 1840 struct arm_state_hdr_t { 1841 uint32_t flavor; 1842 uint32_t count; 1843 }; 1844 1845 struct arm_thread_state_t { 1846 arm_state_hdr_t tsh; 1847 union { 1848 arm_thread_state32_t ts32; 1849 } uts; 1850 }; 1851 1852 inline void swapStruct(arm_state_hdr_t &x) { 1853 sys::swapByteOrder(x.flavor); 1854 sys::swapByteOrder(x.count); 1855 } 1856 1857 enum ARMThreadFlavors { 1858 ARM_THREAD_STATE = 1, 1859 ARM_VFP_STATE = 2, 1860 ARM_EXCEPTION_STATE = 3, 1861 ARM_DEBUG_STATE = 4, 1862 ARN_THREAD_STATE_NONE = 5, 1863 ARM_THREAD_STATE64 = 6, 1864 ARM_EXCEPTION_STATE64 = 7 1865 }; 1866 1867 inline void swapStruct(arm_thread_state_t &x) { 1868 swapStruct(x.tsh); 1869 if (x.tsh.flavor == ARM_THREAD_STATE) 1870 swapStruct(x.uts.ts32); 1871 } 1872 1873 const uint32_t ARM_THREAD_STATE_COUNT = 1874 sizeof(arm_thread_state32_t) / sizeof(uint32_t); 1875 1876 const uint32_t ARM_THREAD_STATE64_COUNT = 1877 sizeof(arm_thread_state64_t) / sizeof(uint32_t); 1878 1879 struct ppc_thread_state32_t { 1880 uint32_t srr0; 1881 uint32_t srr1; 1882 uint32_t r0; 1883 uint32_t r1; 1884 uint32_t r2; 1885 uint32_t r3; 1886 uint32_t r4; 1887 uint32_t r5; 1888 uint32_t r6; 1889 uint32_t r7; 1890 uint32_t r8; 1891 uint32_t r9; 1892 uint32_t r10; 1893 uint32_t r11; 1894 uint32_t r12; 1895 uint32_t r13; 1896 uint32_t r14; 1897 uint32_t r15; 1898 uint32_t r16; 1899 uint32_t r17; 1900 uint32_t r18; 1901 uint32_t r19; 1902 uint32_t r20; 1903 uint32_t r21; 1904 uint32_t r22; 1905 uint32_t r23; 1906 uint32_t r24; 1907 uint32_t r25; 1908 uint32_t r26; 1909 uint32_t r27; 1910 uint32_t r28; 1911 uint32_t r29; 1912 uint32_t r30; 1913 uint32_t r31; 1914 uint32_t ct; 1915 uint32_t xer; 1916 uint32_t lr; 1917 uint32_t ctr; 1918 uint32_t mq; 1919 uint32_t vrsave; 1920 }; 1921 1922 inline void swapStruct(ppc_thread_state32_t &x) { 1923 sys::swapByteOrder(x.srr0); 1924 sys::swapByteOrder(x.srr1); 1925 sys::swapByteOrder(x.r0); 1926 sys::swapByteOrder(x.r1); 1927 sys::swapByteOrder(x.r2); 1928 sys::swapByteOrder(x.r3); 1929 sys::swapByteOrder(x.r4); 1930 sys::swapByteOrder(x.r5); 1931 sys::swapByteOrder(x.r6); 1932 sys::swapByteOrder(x.r7); 1933 sys::swapByteOrder(x.r8); 1934 sys::swapByteOrder(x.r9); 1935 sys::swapByteOrder(x.r10); 1936 sys::swapByteOrder(x.r11); 1937 sys::swapByteOrder(x.r12); 1938 sys::swapByteOrder(x.r13); 1939 sys::swapByteOrder(x.r14); 1940 sys::swapByteOrder(x.r15); 1941 sys::swapByteOrder(x.r16); 1942 sys::swapByteOrder(x.r17); 1943 sys::swapByteOrder(x.r18); 1944 sys::swapByteOrder(x.r19); 1945 sys::swapByteOrder(x.r20); 1946 sys::swapByteOrder(x.r21); 1947 sys::swapByteOrder(x.r22); 1948 sys::swapByteOrder(x.r23); 1949 sys::swapByteOrder(x.r24); 1950 sys::swapByteOrder(x.r25); 1951 sys::swapByteOrder(x.r26); 1952 sys::swapByteOrder(x.r27); 1953 sys::swapByteOrder(x.r28); 1954 sys::swapByteOrder(x.r29); 1955 sys::swapByteOrder(x.r30); 1956 sys::swapByteOrder(x.r31); 1957 sys::swapByteOrder(x.ct); 1958 sys::swapByteOrder(x.xer); 1959 sys::swapByteOrder(x.lr); 1960 sys::swapByteOrder(x.ctr); 1961 sys::swapByteOrder(x.mq); 1962 sys::swapByteOrder(x.vrsave); 1963 } 1964 1965 struct ppc_state_hdr_t { 1966 uint32_t flavor; 1967 uint32_t count; 1968 }; 1969 1970 struct ppc_thread_state_t { 1971 ppc_state_hdr_t tsh; 1972 union { 1973 ppc_thread_state32_t ts32; 1974 } uts; 1975 }; 1976 1977 inline void swapStruct(ppc_state_hdr_t &x) { 1978 sys::swapByteOrder(x.flavor); 1979 sys::swapByteOrder(x.count); 1980 } 1981 1982 enum PPCThreadFlavors { 1983 PPC_THREAD_STATE = 1, 1984 PPC_FLOAT_STATE = 2, 1985 PPC_EXCEPTION_STATE = 3, 1986 PPC_VECTOR_STATE = 4, 1987 PPC_THREAD_STATE64 = 5, 1988 PPC_EXCEPTION_STATE64 = 6, 1989 PPC_THREAD_STATE_NONE = 7 1990 }; 1991 1992 inline void swapStruct(ppc_thread_state_t &x) { 1993 swapStruct(x.tsh); 1994 if (x.tsh.flavor == PPC_THREAD_STATE) 1995 swapStruct(x.uts.ts32); 1996 } 1997 1998 const uint32_t PPC_THREAD_STATE_COUNT = 1999 sizeof(ppc_thread_state32_t) / sizeof(uint32_t); 2000 2001 // Define a union of all load command structs 2002 #define LOAD_COMMAND_STRUCT(LCStruct) LCStruct LCStruct##_data; 2003 2004 LLVM_PACKED_START 2005 union alignas(4) macho_load_command { 2006 #include "llvm/BinaryFormat/MachO.def" 2007 }; 2008 LLVM_PACKED_END 2009 2010 /* code signing attributes of a process */ 2011 2012 enum CodeSignAttrs { 2013 CS_VALID = 0x00000001, /* dynamically valid */ 2014 CS_ADHOC = 0x00000002, /* ad hoc signed */ 2015 CS_GET_TASK_ALLOW = 0x00000004, /* has get-task-allow entitlement */ 2016 CS_INSTALLER = 0x00000008, /* has installer entitlement */ 2017 2018 CS_FORCED_LV = 2019 0x00000010, /* Library Validation required by Hardened System Policy */ 2020 CS_INVALID_ALLOWED = 0x00000020, /* (macOS Only) Page invalidation allowed by 2021 task port policy */ 2022 2023 CS_HARD = 0x00000100, /* don't load invalid pages */ 2024 CS_KILL = 0x00000200, /* kill process if it becomes invalid */ 2025 CS_CHECK_EXPIRATION = 0x00000400, /* force expiration checking */ 2026 CS_RESTRICT = 0x00000800, /* tell dyld to treat restricted */ 2027 2028 CS_ENFORCEMENT = 0x00001000, /* require enforcement */ 2029 CS_REQUIRE_LV = 0x00002000, /* require library validation */ 2030 CS_ENTITLEMENTS_VALIDATED = 2031 0x00004000, /* code signature permits restricted entitlements */ 2032 CS_NVRAM_UNRESTRICTED = 2033 0x00008000, /* has com.apple.rootless.restricted-nvram-variables.heritable 2034 entitlement */ 2035 2036 CS_RUNTIME = 0x00010000, /* Apply hardened runtime policies */ 2037 CS_LINKER_SIGNED = 0x00020000, /* Automatically signed by the linker */ 2038 2039 CS_ALLOWED_MACHO = 2040 (CS_ADHOC | CS_HARD | CS_KILL | CS_CHECK_EXPIRATION | CS_RESTRICT | 2041 CS_ENFORCEMENT | CS_REQUIRE_LV | CS_RUNTIME | CS_LINKER_SIGNED), 2042 2043 CS_EXEC_SET_HARD = 0x00100000, /* set CS_HARD on any exec'ed process */ 2044 CS_EXEC_SET_KILL = 0x00200000, /* set CS_KILL on any exec'ed process */ 2045 CS_EXEC_SET_ENFORCEMENT = 2046 0x00400000, /* set CS_ENFORCEMENT on any exec'ed process */ 2047 CS_EXEC_INHERIT_SIP = 2048 0x00800000, /* set CS_INSTALLER on any exec'ed process */ 2049 2050 CS_KILLED = 0x01000000, /* was killed by kernel for invalidity */ 2051 CS_DYLD_PLATFORM = 2052 0x02000000, /* dyld used to load this is a platform binary */ 2053 CS_PLATFORM_BINARY = 0x04000000, /* this is a platform binary */ 2054 CS_PLATFORM_PATH = 2055 0x08000000, /* platform binary by the fact of path (osx only) */ 2056 2057 CS_DEBUGGED = 0x10000000, /* process is currently or has previously been 2058 debugged and allowed to run with invalid pages */ 2059 CS_SIGNED = 0x20000000, /* process has a signature (may have gone invalid) */ 2060 CS_DEV_CODE = 2061 0x40000000, /* code is dev signed, cannot be loaded into prod signed code 2062 (will go away with rdar://problem/28322552) */ 2063 CS_DATAVAULT_CONTROLLER = 2064 0x80000000, /* has Data Vault controller entitlement */ 2065 2066 CS_ENTITLEMENT_FLAGS = (CS_GET_TASK_ALLOW | CS_INSTALLER | 2067 CS_DATAVAULT_CONTROLLER | CS_NVRAM_UNRESTRICTED), 2068 }; 2069 2070 /* executable segment flags */ 2071 2072 enum CodeSignExecSegFlags { 2073 2074 CS_EXECSEG_MAIN_BINARY = 0x1, /* executable segment denotes main binary */ 2075 CS_EXECSEG_ALLOW_UNSIGNED = 0x10, /* allow unsigned pages (for debugging) */ 2076 CS_EXECSEG_DEBUGGER = 0x20, /* main binary is debugger */ 2077 CS_EXECSEG_JIT = 0x40, /* JIT enabled */ 2078 CS_EXECSEG_SKIP_LV = 0x80, /* OBSOLETE: skip library validation */ 2079 CS_EXECSEG_CAN_LOAD_CDHASH = 0x100, /* can bless cdhash for execution */ 2080 CS_EXECSEG_CAN_EXEC_CDHASH = 0x200, /* can execute blessed cdhash */ 2081 2082 }; 2083 2084 /* Magic numbers used by Code Signing */ 2085 2086 enum CodeSignMagic { 2087 CSMAGIC_REQUIREMENT = 0xfade0c00, /* single Requirement blob */ 2088 CSMAGIC_REQUIREMENTS = 2089 0xfade0c01, /* Requirements vector (internal requirements) */ 2090 CSMAGIC_CODEDIRECTORY = 0xfade0c02, /* CodeDirectory blob */ 2091 CSMAGIC_EMBEDDED_SIGNATURE = 0xfade0cc0, /* embedded form of signature data */ 2092 CSMAGIC_EMBEDDED_SIGNATURE_OLD = 0xfade0b02, /* XXX */ 2093 CSMAGIC_EMBEDDED_ENTITLEMENTS = 0xfade7171, /* embedded entitlements */ 2094 CSMAGIC_DETACHED_SIGNATURE = 2095 0xfade0cc1, /* multi-arch collection of embedded signatures */ 2096 CSMAGIC_BLOBWRAPPER = 0xfade0b01, /* CMS Signature, among other things */ 2097 2098 CS_SUPPORTSSCATTER = 0x20100, 2099 CS_SUPPORTSTEAMID = 0x20200, 2100 CS_SUPPORTSCODELIMIT64 = 0x20300, 2101 CS_SUPPORTSEXECSEG = 0x20400, 2102 CS_SUPPORTSRUNTIME = 0x20500, 2103 CS_SUPPORTSLINKAGE = 0x20600, 2104 2105 CSSLOT_CODEDIRECTORY = 0, /* slot index for CodeDirectory */ 2106 CSSLOT_INFOSLOT = 1, 2107 CSSLOT_REQUIREMENTS = 2, 2108 CSSLOT_RESOURCEDIR = 3, 2109 CSSLOT_APPLICATION = 4, 2110 CSSLOT_ENTITLEMENTS = 5, 2111 2112 CSSLOT_ALTERNATE_CODEDIRECTORIES = 2113 0x1000, /* first alternate CodeDirectory, if any */ 2114 CSSLOT_ALTERNATE_CODEDIRECTORY_MAX = 5, /* max number of alternate CD slots */ 2115 CSSLOT_ALTERNATE_CODEDIRECTORY_LIMIT = 2116 CSSLOT_ALTERNATE_CODEDIRECTORIES + 2117 CSSLOT_ALTERNATE_CODEDIRECTORY_MAX, /* one past the last */ 2118 2119 CSSLOT_SIGNATURESLOT = 0x10000, /* CMS Signature */ 2120 CSSLOT_IDENTIFICATIONSLOT = 0x10001, 2121 CSSLOT_TICKETSLOT = 0x10002, 2122 2123 CSTYPE_INDEX_REQUIREMENTS = 0x00000002, /* compat with amfi */ 2124 CSTYPE_INDEX_ENTITLEMENTS = 0x00000005, /* compat with amfi */ 2125 2126 CS_HASHTYPE_SHA1 = 1, 2127 CS_HASHTYPE_SHA256 = 2, 2128 CS_HASHTYPE_SHA256_TRUNCATED = 3, 2129 CS_HASHTYPE_SHA384 = 4, 2130 2131 CS_SHA1_LEN = 20, 2132 CS_SHA256_LEN = 32, 2133 CS_SHA256_TRUNCATED_LEN = 20, 2134 2135 CS_CDHASH_LEN = 20, /* always - larger hashes are truncated */ 2136 CS_HASH_MAX_SIZE = 48, /* max size of the hash we'll support */ 2137 2138 /* 2139 * Currently only to support Legacy VPN plugins, and Mac App Store 2140 * but intended to replace all the various platform code, dev code etc. bits. 2141 */ 2142 CS_SIGNER_TYPE_UNKNOWN = 0, 2143 CS_SIGNER_TYPE_LEGACYVPN = 5, 2144 CS_SIGNER_TYPE_MAC_APP_STORE = 6, 2145 2146 CS_SUPPL_SIGNER_TYPE_UNKNOWN = 0, 2147 CS_SUPPL_SIGNER_TYPE_TRUSTCACHE = 7, 2148 CS_SUPPL_SIGNER_TYPE_LOCAL = 8, 2149 }; 2150 2151 struct CS_CodeDirectory { 2152 uint32_t magic; /* magic number (CSMAGIC_CODEDIRECTORY) */ 2153 uint32_t length; /* total length of CodeDirectory blob */ 2154 uint32_t version; /* compatibility version */ 2155 uint32_t flags; /* setup and mode flags */ 2156 uint32_t hashOffset; /* offset of hash slot element at index zero */ 2157 uint32_t identOffset; /* offset of identifier string */ 2158 uint32_t nSpecialSlots; /* number of special hash slots */ 2159 uint32_t nCodeSlots; /* number of ordinary (code) hash slots */ 2160 uint32_t codeLimit; /* limit to main image signature range */ 2161 uint8_t hashSize; /* size of each hash in bytes */ 2162 uint8_t hashType; /* type of hash (cdHashType* constants) */ 2163 uint8_t platform; /* platform identifier; zero if not platform binary */ 2164 uint8_t pageSize; /* log2(page size in bytes); 0 => infinite */ 2165 uint32_t spare2; /* unused (must be zero) */ 2166 2167 /* Version 0x20100 */ 2168 uint32_t scatterOffset; /* offset of optional scatter vector */ 2169 2170 /* Version 0x20200 */ 2171 uint32_t teamOffset; /* offset of optional team identifier */ 2172 2173 /* Version 0x20300 */ 2174 uint32_t spare3; /* unused (must be zero) */ 2175 uint64_t codeLimit64; /* limit to main image signature range, 64 bits */ 2176 2177 /* Version 0x20400 */ 2178 uint64_t execSegBase; /* offset of executable segment */ 2179 uint64_t execSegLimit; /* limit of executable segment */ 2180 uint64_t execSegFlags; /* executable segment flags */ 2181 }; 2182 2183 static_assert(sizeof(CS_CodeDirectory) == 88, ""); 2184 2185 struct CS_BlobIndex { 2186 uint32_t type; /* type of entry */ 2187 uint32_t offset; /* offset of entry */ 2188 }; 2189 2190 struct CS_SuperBlob { 2191 uint32_t magic; /* magic number */ 2192 uint32_t length; /* total length of SuperBlob */ 2193 uint32_t count; /* number of index entries following */ 2194 /* followed by Blobs in no particular order as indicated by index offsets */ 2195 }; 2196 2197 enum SecCSDigestAlgorithm { 2198 kSecCodeSignatureNoHash = 0, /* null value */ 2199 kSecCodeSignatureHashSHA1 = 1, /* SHA-1 */ 2200 kSecCodeSignatureHashSHA256 = 2, /* SHA-256 */ 2201 kSecCodeSignatureHashSHA256Truncated = 2202 3, /* SHA-256 truncated to first 20 bytes */ 2203 kSecCodeSignatureHashSHA384 = 4, /* SHA-384 */ 2204 kSecCodeSignatureHashSHA512 = 5, /* SHA-512 */ 2205 }; 2206 2207 } // end namespace MachO 2208 } // end namespace llvm 2209 2210 #endif 2211
Indexes created Tue Feb 24 08:35:24 UTC 2026