1//===-- llvm/Support/MachO.h - The MachO file format ------------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file defines manifest constants for the MachO object file format. 11// 12//===----------------------------------------------------------------------===// 13 14#ifndef LLVM_SUPPORT_MACHO_H 15#define LLVM_SUPPORT_MACHO_H 16 17#include "llvm/Support/Compiler.h" 18#include "llvm/Support/DataTypes.h" 19#include "llvm/Support/Host.h" 20 21namespace llvm { 22 namespace MachO { 23 // Enums from <mach-o/loader.h> 24 enum : uint32_t { 25 // Constants for the "magic" field in llvm::MachO::mach_header and 26 // llvm::MachO::mach_header_64 27 MH_MAGIC = 0xFEEDFACEu, 28 MH_CIGAM = 0xCEFAEDFEu, 29 MH_MAGIC_64 = 0xFEEDFACFu, 30 MH_CIGAM_64 = 0xCFFAEDFEu, 31 FAT_MAGIC = 0xCAFEBABEu, 32 FAT_CIGAM = 0xBEBAFECAu 33 }; 34 35 enum HeaderFileType { 36 // Constants for the "filetype" field in llvm::MachO::mach_header and 37 // llvm::MachO::mach_header_64 38 MH_OBJECT = 0x1u, 39 MH_EXECUTE = 0x2u, 40 MH_FVMLIB = 0x3u, 41 MH_CORE = 0x4u, 42 MH_PRELOAD = 0x5u, 43 MH_DYLIB = 0x6u, 44 MH_DYLINKER = 0x7u, 45 MH_BUNDLE = 0x8u, 46 MH_DYLIB_STUB = 0x9u, 47 MH_DSYM = 0xAu, 48 MH_KEXT_BUNDLE = 0xBu 49 }; 50 51 enum { 52 // Constant bits for the "flags" field in llvm::MachO::mach_header and 53 // llvm::MachO::mach_header_64 54 MH_NOUNDEFS = 0x00000001u, 55 MH_INCRLINK = 0x00000002u, 56 MH_DYLDLINK = 0x00000004u, 57 MH_BINDATLOAD = 0x00000008u, 58 MH_PREBOUND = 0x00000010u, 59 MH_SPLIT_SEGS = 0x00000020u, 60 MH_LAZY_INIT = 0x00000040u, 61 MH_TWOLEVEL = 0x00000080u, 62 MH_FORCE_FLAT = 0x00000100u, 63 MH_NOMULTIDEFS = 0x00000200u, 64 MH_NOFIXPREBINDING = 0x00000400u, 65 MH_PREBINDABLE = 0x00000800u, 66 MH_ALLMODSBOUND = 0x00001000u, 67 MH_SUBSECTIONS_VIA_SYMBOLS = 0x00002000u, 68 MH_CANONICAL = 0x00004000u, 69 MH_WEAK_DEFINES = 0x00008000u, 70 MH_BINDS_TO_WEAK = 0x00010000u, 71 MH_ALLOW_STACK_EXECUTION = 0x00020000u, 72 MH_ROOT_SAFE = 0x00040000u, 73 MH_SETUID_SAFE = 0x00080000u, 74 MH_NO_REEXPORTED_DYLIBS = 0x00100000u, 75 MH_PIE = 0x00200000u, 76 MH_DEAD_STRIPPABLE_DYLIB = 0x00400000u, 77 MH_HAS_TLV_DESCRIPTORS = 0x00800000u, 78 MH_NO_HEAP_EXECUTION = 0x01000000u, 79 MH_APP_EXTENSION_SAFE = 0x02000000u 80 }; 81 82 enum : uint32_t { 83 // Flags for the "cmd" field in llvm::MachO::load_command 84 LC_REQ_DYLD = 0x80000000u 85 }; 86 87 enum LoadCommandType : uint32_t { 88 // Constants for the "cmd" field in llvm::MachO::load_command 89 LC_SEGMENT = 0x00000001u, 90 LC_SYMTAB = 0x00000002u, 91 LC_SYMSEG = 0x00000003u, 92 LC_THREAD = 0x00000004u, 93 LC_UNIXTHREAD = 0x00000005u, 94 LC_LOADFVMLIB = 0x00000006u, 95 LC_IDFVMLIB = 0x00000007u, 96 LC_IDENT = 0x00000008u, 97 LC_FVMFILE = 0x00000009u, 98 LC_PREPAGE = 0x0000000Au, 99 LC_DYSYMTAB = 0x0000000Bu, 100 LC_LOAD_DYLIB = 0x0000000Cu, 101 LC_ID_DYLIB = 0x0000000Du, 102 LC_LOAD_DYLINKER = 0x0000000Eu, 103 LC_ID_DYLINKER = 0x0000000Fu, 104 LC_PREBOUND_DYLIB = 0x00000010u, 105 LC_ROUTINES = 0x00000011u, 106 LC_SUB_FRAMEWORK = 0x00000012u, 107 LC_SUB_UMBRELLA = 0x00000013u, 108 LC_SUB_CLIENT = 0x00000014u, 109 LC_SUB_LIBRARY = 0x00000015u, 110 LC_TWOLEVEL_HINTS = 0x00000016u, 111 LC_PREBIND_CKSUM = 0x00000017u, 112 LC_LOAD_WEAK_DYLIB = 0x80000018u, 113 LC_SEGMENT_64 = 0x00000019u, 114 LC_ROUTINES_64 = 0x0000001Au, 115 LC_UUID = 0x0000001Bu, 116 LC_RPATH = 0x8000001Cu, 117 LC_CODE_SIGNATURE = 0x0000001Du, 118 LC_SEGMENT_SPLIT_INFO = 0x0000001Eu, 119 LC_REEXPORT_DYLIB = 0x8000001Fu, 120 LC_LAZY_LOAD_DYLIB = 0x00000020u, 121 LC_ENCRYPTION_INFO = 0x00000021u, 122 LC_DYLD_INFO = 0x00000022u, 123 LC_DYLD_INFO_ONLY = 0x80000022u, 124 LC_LOAD_UPWARD_DYLIB = 0x80000023u, 125 LC_VERSION_MIN_MACOSX = 0x00000024u, 126 LC_VERSION_MIN_IPHONEOS = 0x00000025u, 127 LC_FUNCTION_STARTS = 0x00000026u, 128 LC_DYLD_ENVIRONMENT = 0x00000027u, 129 LC_MAIN = 0x80000028u, 130 LC_DATA_IN_CODE = 0x00000029u, 131 LC_SOURCE_VERSION = 0x0000002Au, 132 LC_DYLIB_CODE_SIGN_DRS = 0x0000002Bu, 133 LC_ENCRYPTION_INFO_64 = 0x0000002Cu, 134 LC_LINKER_OPTION = 0x0000002Du, 135 LC_LINKER_OPTIMIZATION_HINT = 0x0000002Eu 136 }; 137 138 enum : uint32_t { 139 // Constant bits for the "flags" field in llvm::MachO::segment_command 140 SG_HIGHVM = 0x1u, 141 SG_FVMLIB = 0x2u, 142 SG_NORELOC = 0x4u, 143 SG_PROTECTED_VERSION_1 = 0x8u, 144 145 146 // Constant masks for the "flags" field in llvm::MachO::section and 147 // llvm::MachO::section_64 148 SECTION_TYPE = 0x000000ffu, // SECTION_TYPE 149 SECTION_ATTRIBUTES = 0xffffff00u, // SECTION_ATTRIBUTES 150 SECTION_ATTRIBUTES_USR = 0xff000000u, // SECTION_ATTRIBUTES_USR 151 SECTION_ATTRIBUTES_SYS = 0x00ffff00u // SECTION_ATTRIBUTES_SYS 152 }; 153 154 /// These are the section type and attributes fields. A MachO section can 155 /// have only one Type, but can have any of the attributes specified. 156 enum SectionType : uint32_t { 157 // Constant masks for the "flags[7:0]" field in llvm::MachO::section and 158 // llvm::MachO::section_64 (mask "flags" with SECTION_TYPE) 159 160 /// S_REGULAR - Regular section. 161 S_REGULAR = 0x00u, 162 /// S_ZEROFILL - Zero fill on demand section. 163 S_ZEROFILL = 0x01u, 164 /// S_CSTRING_LITERALS - Section with literal C strings. 165 S_CSTRING_LITERALS = 0x02u, 166 /// S_4BYTE_LITERALS - Section with 4 byte literals. 167 S_4BYTE_LITERALS = 0x03u, 168 /// S_8BYTE_LITERALS - Section with 8 byte literals. 169 S_8BYTE_LITERALS = 0x04u, 170 /// S_LITERAL_POINTERS - Section with pointers to literals. 171 S_LITERAL_POINTERS = 0x05u, 172 /// S_NON_LAZY_SYMBOL_POINTERS - Section with non-lazy symbol pointers. 173 S_NON_LAZY_SYMBOL_POINTERS = 0x06u, 174 /// S_LAZY_SYMBOL_POINTERS - Section with lazy symbol pointers. 175 S_LAZY_SYMBOL_POINTERS = 0x07u, 176 /// S_SYMBOL_STUBS - Section with symbol stubs, byte size of stub in 177 /// the Reserved2 field. 178 S_SYMBOL_STUBS = 0x08u, 179 /// S_MOD_INIT_FUNC_POINTERS - Section with only function pointers for 180 /// initialization. 181 S_MOD_INIT_FUNC_POINTERS = 0x09u, 182 /// S_MOD_TERM_FUNC_POINTERS - Section with only function pointers for 183 /// termination. 184 S_MOD_TERM_FUNC_POINTERS = 0x0au, 185 /// S_COALESCED - Section contains symbols that are to be coalesced. 186 S_COALESCED = 0x0bu, 187 /// S_GB_ZEROFILL - Zero fill on demand section (that can be larger than 4 188 /// gigabytes). 189 S_GB_ZEROFILL = 0x0cu, 190 /// S_INTERPOSING - Section with only pairs of function pointers for 191 /// interposing. 192 S_INTERPOSING = 0x0du, 193 /// S_16BYTE_LITERALS - Section with only 16 byte literals. 194 S_16BYTE_LITERALS = 0x0eu, 195 /// S_DTRACE_DOF - Section contains DTrace Object Format. 196 S_DTRACE_DOF = 0x0fu, 197 /// S_LAZY_DYLIB_SYMBOL_POINTERS - Section with lazy symbol pointers to 198 /// lazy loaded dylibs. 199 S_LAZY_DYLIB_SYMBOL_POINTERS = 0x10u, 200 /// S_THREAD_LOCAL_REGULAR - Thread local data section. 201 S_THREAD_LOCAL_REGULAR = 0x11u, 202 /// S_THREAD_LOCAL_ZEROFILL - Thread local zerofill section. 203 S_THREAD_LOCAL_ZEROFILL = 0x12u, 204 /// S_THREAD_LOCAL_VARIABLES - Section with thread local variable 205 /// structure data. 206 S_THREAD_LOCAL_VARIABLES = 0x13u, 207 /// S_THREAD_LOCAL_VARIABLE_POINTERS - Section with pointers to thread 208 /// local structures. 209 S_THREAD_LOCAL_VARIABLE_POINTERS = 0x14u, 210 /// S_THREAD_LOCAL_INIT_FUNCTION_POINTERS - Section with thread local 211 /// variable initialization pointers to functions. 212 S_THREAD_LOCAL_INIT_FUNCTION_POINTERS = 0x15u, 213 214 LAST_KNOWN_SECTION_TYPE = S_THREAD_LOCAL_INIT_FUNCTION_POINTERS 215 }; 216 217 enum : uint32_t { 218 // Constant masks for the "flags[31:24]" field in llvm::MachO::section and 219 // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_USR) 220 221 /// S_ATTR_PURE_INSTRUCTIONS - Section contains only true machine 222 /// instructions. 223 S_ATTR_PURE_INSTRUCTIONS = 0x80000000u, 224 /// S_ATTR_NO_TOC - Section contains coalesced symbols that are not to be 225 /// in a ranlib table of contents. 226 S_ATTR_NO_TOC = 0x40000000u, 227 /// S_ATTR_STRIP_STATIC_SYMS - Ok to strip static symbols in this section 228 /// in files with the MY_DYLDLINK flag. 229 S_ATTR_STRIP_STATIC_SYMS = 0x20000000u, 230 /// S_ATTR_NO_DEAD_STRIP - No dead stripping. 231 S_ATTR_NO_DEAD_STRIP = 0x10000000u, 232 /// S_ATTR_LIVE_SUPPORT - Blocks are live if they reference live blocks. 233 S_ATTR_LIVE_SUPPORT = 0x08000000u, 234 /// S_ATTR_SELF_MODIFYING_CODE - Used with i386 code stubs written on by 235 /// dyld. 236 S_ATTR_SELF_MODIFYING_CODE = 0x04000000u, 237 /// S_ATTR_DEBUG - A debug section. 238 S_ATTR_DEBUG = 0x02000000u, 239 240 // Constant masks for the "flags[23:8]" field in llvm::MachO::section and 241 // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_SYS) 242 243 /// S_ATTR_SOME_INSTRUCTIONS - Section contains some machine instructions. 244 S_ATTR_SOME_INSTRUCTIONS = 0x00000400u, 245 /// S_ATTR_EXT_RELOC - Section has external relocation entries. 246 S_ATTR_EXT_RELOC = 0x00000200u, 247 /// S_ATTR_LOC_RELOC - Section has local relocation entries. 248 S_ATTR_LOC_RELOC = 0x00000100u, 249 250 // Constant masks for the value of an indirect symbol in an indirect 251 // symbol table 252 INDIRECT_SYMBOL_LOCAL = 0x80000000u, 253 INDIRECT_SYMBOL_ABS = 0x40000000u 254 }; 255 256 enum DataRegionType { 257 // Constants for the "kind" field in a data_in_code_entry structure 258 DICE_KIND_DATA = 1u, 259 DICE_KIND_JUMP_TABLE8 = 2u, 260 DICE_KIND_JUMP_TABLE16 = 3u, 261 DICE_KIND_JUMP_TABLE32 = 4u, 262 DICE_KIND_ABS_JUMP_TABLE32 = 5u 263 }; 264 265 enum RebaseType { 266 REBASE_TYPE_POINTER = 1u, 267 REBASE_TYPE_TEXT_ABSOLUTE32 = 2u, 268 REBASE_TYPE_TEXT_PCREL32 = 3u 269 }; 270 271 enum { 272 REBASE_OPCODE_MASK = 0xF0u, 273 REBASE_IMMEDIATE_MASK = 0x0Fu 274 }; 275 276 enum RebaseOpcode { 277 REBASE_OPCODE_DONE = 0x00u, 278 REBASE_OPCODE_SET_TYPE_IMM = 0x10u, 279 REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB = 0x20u, 280 REBASE_OPCODE_ADD_ADDR_ULEB = 0x30u, 281 REBASE_OPCODE_ADD_ADDR_IMM_SCALED = 0x40u, 282 REBASE_OPCODE_DO_REBASE_IMM_TIMES = 0x50u, 283 REBASE_OPCODE_DO_REBASE_ULEB_TIMES = 0x60u, 284 REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB = 0x70u, 285 REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB = 0x80u 286 }; 287 288 enum BindType { 289 BIND_TYPE_POINTER = 1u, 290 BIND_TYPE_TEXT_ABSOLUTE32 = 2u, 291 BIND_TYPE_TEXT_PCREL32 = 3u 292 }; 293 294 enum BindSpecialDylib { 295 BIND_SPECIAL_DYLIB_SELF = 0, 296 BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE = -1, 297 BIND_SPECIAL_DYLIB_FLAT_LOOKUP = -2 298 }; 299 300 enum { 301 BIND_SYMBOL_FLAGS_WEAK_IMPORT = 0x1u, 302 BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION = 0x8u, 303 304 BIND_OPCODE_MASK = 0xF0u, 305 BIND_IMMEDIATE_MASK = 0x0Fu 306 }; 307 308 enum BindOpcode { 309 BIND_OPCODE_DONE = 0x00u, 310 BIND_OPCODE_SET_DYLIB_ORDINAL_IMM = 0x10u, 311 BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB = 0x20u, 312 BIND_OPCODE_SET_DYLIB_SPECIAL_IMM = 0x30u, 313 BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM = 0x40u, 314 BIND_OPCODE_SET_TYPE_IMM = 0x50u, 315 BIND_OPCODE_SET_ADDEND_SLEB = 0x60u, 316 BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB = 0x70u, 317 BIND_OPCODE_ADD_ADDR_ULEB = 0x80u, 318 BIND_OPCODE_DO_BIND = 0x90u, 319 BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB = 0xA0u, 320 BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED = 0xB0u, 321 BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB = 0xC0u 322 }; 323 324 enum { 325 EXPORT_SYMBOL_FLAGS_KIND_MASK = 0x03u, 326 EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION = 0x04u, 327 EXPORT_SYMBOL_FLAGS_REEXPORT = 0x08u, 328 EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER = 0x10u 329 }; 330 331 enum ExportSymbolKind { 332 EXPORT_SYMBOL_FLAGS_KIND_REGULAR = 0x00u, 333 EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL = 0x01u, 334 EXPORT_SYMBOL_FLAGS_KIND_ABSOLUTE = 0x02u 335 }; 336 337 338 enum { 339 // Constant masks for the "n_type" field in llvm::MachO::nlist and 340 // llvm::MachO::nlist_64 341 N_STAB = 0xe0, 342 N_PEXT = 0x10, 343 N_TYPE = 0x0e, 344 N_EXT = 0x01 345 }; 346 347 enum NListType { 348 // Constants for the "n_type & N_TYPE" llvm::MachO::nlist and 349 // llvm::MachO::nlist_64 350 N_UNDF = 0x0u, 351 N_ABS = 0x2u, 352 N_SECT = 0xeu, 353 N_PBUD = 0xcu, 354 N_INDR = 0xau 355 }; 356 357 enum SectionOrdinal { 358 // Constants for the "n_sect" field in llvm::MachO::nlist and 359 // llvm::MachO::nlist_64 360 NO_SECT = 0u, 361 MAX_SECT = 0xffu 362 }; 363 364 enum { 365 // Constant masks for the "n_desc" field in llvm::MachO::nlist and 366 // llvm::MachO::nlist_64 367 // The low 3 bits are the for the REFERENCE_TYPE. 368 REFERENCE_TYPE = 0x7, 369 REFERENCE_FLAG_UNDEFINED_NON_LAZY = 0, 370 REFERENCE_FLAG_UNDEFINED_LAZY = 1, 371 REFERENCE_FLAG_DEFINED = 2, 372 REFERENCE_FLAG_PRIVATE_DEFINED = 3, 373 REFERENCE_FLAG_PRIVATE_UNDEFINED_NON_LAZY = 4, 374 REFERENCE_FLAG_PRIVATE_UNDEFINED_LAZY = 5, 375 // Flag bits (some overlap with the library ordinal bits). 376 N_ARM_THUMB_DEF = 0x0008u, 377 REFERENCED_DYNAMICALLY = 0x0010u, 378 N_NO_DEAD_STRIP = 0x0020u, 379 N_WEAK_REF = 0x0040u, 380 N_WEAK_DEF = 0x0080u, 381 N_SYMBOL_RESOLVER = 0x0100u, 382 N_ALT_ENTRY = 0x0200u, 383 // For undefined symbols coming from libraries, see GET_LIBRARY_ORDINAL() 384 // as these are in the top 8 bits. 385 SELF_LIBRARY_ORDINAL = 0x0, 386 MAX_LIBRARY_ORDINAL = 0xfd, 387 DYNAMIC_LOOKUP_ORDINAL = 0xfe, 388 EXECUTABLE_ORDINAL = 0xff 389 }; 390 391 enum StabType { 392 // Constant values for the "n_type" field in llvm::MachO::nlist and 393 // llvm::MachO::nlist_64 when "(n_type & N_STAB) != 0" 394 N_GSYM = 0x20u, 395 N_FNAME = 0x22u, 396 N_FUN = 0x24u, 397 N_STSYM = 0x26u, 398 N_LCSYM = 0x28u, 399 N_BNSYM = 0x2Eu, 400 N_PC = 0x30u, 401 N_AST = 0x32u, 402 N_OPT = 0x3Cu, 403 N_RSYM = 0x40u, 404 N_SLINE = 0x44u, 405 N_ENSYM = 0x4Eu, 406 N_SSYM = 0x60u, 407 N_SO = 0x64u, 408 N_OSO = 0x66u, 409 N_LSYM = 0x80u, 410 N_BINCL = 0x82u, 411 N_SOL = 0x84u, 412 N_PARAMS = 0x86u, 413 N_VERSION = 0x88u, 414 N_OLEVEL = 0x8Au, 415 N_PSYM = 0xA0u, 416 N_EINCL = 0xA2u, 417 N_ENTRY = 0xA4u, 418 N_LBRAC = 0xC0u, 419 N_EXCL = 0xC2u, 420 N_RBRAC = 0xE0u, 421 N_BCOMM = 0xE2u, 422 N_ECOMM = 0xE4u, 423 N_ECOML = 0xE8u, 424 N_LENG = 0xFEu 425 }; 426 427 enum : uint32_t { 428 // Constant values for the r_symbolnum field in an 429 // llvm::MachO::relocation_info structure when r_extern is 0. 430 R_ABS = 0, 431 432 // Constant bits for the r_address field in an 433 // llvm::MachO::relocation_info structure. 434 R_SCATTERED = 0x80000000 435 }; 436 437 enum RelocationInfoType { 438 // Constant values for the r_type field in an 439 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 440 // structure. 441 GENERIC_RELOC_VANILLA = 0, 442 GENERIC_RELOC_PAIR = 1, 443 GENERIC_RELOC_SECTDIFF = 2, 444 GENERIC_RELOC_PB_LA_PTR = 3, 445 GENERIC_RELOC_LOCAL_SECTDIFF = 4, 446 GENERIC_RELOC_TLV = 5, 447 448 // Constant values for the r_type field in a PowerPC architecture 449 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 450 // structure. 451 PPC_RELOC_VANILLA = GENERIC_RELOC_VANILLA, 452 PPC_RELOC_PAIR = GENERIC_RELOC_PAIR, 453 PPC_RELOC_BR14 = 2, 454 PPC_RELOC_BR24 = 3, 455 PPC_RELOC_HI16 = 4, 456 PPC_RELOC_LO16 = 5, 457 PPC_RELOC_HA16 = 6, 458 PPC_RELOC_LO14 = 7, 459 PPC_RELOC_SECTDIFF = 8, 460 PPC_RELOC_PB_LA_PTR = 9, 461 PPC_RELOC_HI16_SECTDIFF = 10, 462 PPC_RELOC_LO16_SECTDIFF = 11, 463 PPC_RELOC_HA16_SECTDIFF = 12, 464 PPC_RELOC_JBSR = 13, 465 PPC_RELOC_LO14_SECTDIFF = 14, 466 PPC_RELOC_LOCAL_SECTDIFF = 15, 467 468 // Constant values for the r_type field in an ARM architecture 469 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 470 // structure. 471 ARM_RELOC_VANILLA = GENERIC_RELOC_VANILLA, 472 ARM_RELOC_PAIR = GENERIC_RELOC_PAIR, 473 ARM_RELOC_SECTDIFF = GENERIC_RELOC_SECTDIFF, 474 ARM_RELOC_LOCAL_SECTDIFF = 3, 475 ARM_RELOC_PB_LA_PTR = 4, 476 ARM_RELOC_BR24 = 5, 477 ARM_THUMB_RELOC_BR22 = 6, 478 ARM_THUMB_32BIT_BRANCH = 7, // obsolete 479 ARM_RELOC_HALF = 8, 480 ARM_RELOC_HALF_SECTDIFF = 9, 481 482 // Constant values for the r_type field in an ARM64 architecture 483 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 484 // structure. 485 486 // For pointers. 487 ARM64_RELOC_UNSIGNED = 0, 488 // Must be followed by an ARM64_RELOC_UNSIGNED 489 ARM64_RELOC_SUBTRACTOR = 1, 490 // A B/BL instruction with 26-bit displacement. 491 ARM64_RELOC_BRANCH26 = 2, 492 // PC-rel distance to page of target. 493 ARM64_RELOC_PAGE21 = 3, 494 // Offset within page, scaled by r_length. 495 ARM64_RELOC_PAGEOFF12 = 4, 496 // PC-rel distance to page of GOT slot. 497 ARM64_RELOC_GOT_LOAD_PAGE21 = 5, 498 // Offset within page of GOT slot, scaled by r_length. 499 ARM64_RELOC_GOT_LOAD_PAGEOFF12 = 6, 500 // For pointers to GOT slots. 501 ARM64_RELOC_POINTER_TO_GOT = 7, 502 // PC-rel distance to page of TLVP slot. 503 ARM64_RELOC_TLVP_LOAD_PAGE21 = 8, 504 // Offset within page of TLVP slot, scaled by r_length. 505 ARM64_RELOC_TLVP_LOAD_PAGEOFF12 = 9, 506 // Must be followed by ARM64_RELOC_PAGE21 or ARM64_RELOC_PAGEOFF12. 507 ARM64_RELOC_ADDEND = 10, 508 509 510 // Constant values for the r_type field in an x86_64 architecture 511 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 512 // structure 513 X86_64_RELOC_UNSIGNED = 0, 514 X86_64_RELOC_SIGNED = 1, 515 X86_64_RELOC_BRANCH = 2, 516 X86_64_RELOC_GOT_LOAD = 3, 517 X86_64_RELOC_GOT = 4, 518 X86_64_RELOC_SUBTRACTOR = 5, 519 X86_64_RELOC_SIGNED_1 = 6, 520 X86_64_RELOC_SIGNED_2 = 7, 521 X86_64_RELOC_SIGNED_4 = 8, 522 X86_64_RELOC_TLV = 9 523 }; 524 525 // Values for segment_command.initprot. 526 // From <mach/vm_prot.h> 527 enum { 528 VM_PROT_READ = 0x1, 529 VM_PROT_WRITE = 0x2, 530 VM_PROT_EXECUTE = 0x4 531 }; 532 533 534 // Structs from <mach-o/loader.h> 535 536 struct mach_header { 537 uint32_t magic; 538 uint32_t cputype; 539 uint32_t cpusubtype; 540 uint32_t filetype; 541 uint32_t ncmds; 542 uint32_t sizeofcmds; 543 uint32_t flags; 544 }; 545 546 struct mach_header_64 { 547 uint32_t magic; 548 uint32_t cputype; 549 uint32_t cpusubtype; 550 uint32_t filetype; 551 uint32_t ncmds; 552 uint32_t sizeofcmds; 553 uint32_t flags; 554 uint32_t reserved; 555 }; 556 557 struct load_command { 558 uint32_t cmd; 559 uint32_t cmdsize; 560 }; 561 562 struct segment_command { 563 uint32_t cmd; 564 uint32_t cmdsize; 565 char segname[16]; 566 uint32_t vmaddr; 567 uint32_t vmsize; 568 uint32_t fileoff; 569 uint32_t filesize; 570 uint32_t maxprot; 571 uint32_t initprot; 572 uint32_t nsects; 573 uint32_t flags; 574 }; 575 576 struct segment_command_64 { 577 uint32_t cmd; 578 uint32_t cmdsize; 579 char segname[16]; 580 uint64_t vmaddr; 581 uint64_t vmsize; 582 uint64_t fileoff; 583 uint64_t filesize; 584 uint32_t maxprot; 585 uint32_t initprot; 586 uint32_t nsects; 587 uint32_t flags; 588 }; 589 590 struct section { 591 char sectname[16]; 592 char segname[16]; 593 uint32_t addr; 594 uint32_t size; 595 uint32_t offset; 596 uint32_t align; 597 uint32_t reloff; 598 uint32_t nreloc; 599 uint32_t flags; 600 uint32_t reserved1; 601 uint32_t reserved2; 602 }; 603 604 struct section_64 { 605 char sectname[16]; 606 char segname[16]; 607 uint64_t addr; 608 uint64_t size; 609 uint32_t offset; 610 uint32_t align; 611 uint32_t reloff; 612 uint32_t nreloc; 613 uint32_t flags; 614 uint32_t reserved1; 615 uint32_t reserved2; 616 uint32_t reserved3; 617 }; 618 619 struct fvmlib { 620 uint32_t name; 621 uint32_t minor_version; 622 uint32_t header_addr; 623 }; 624 625 struct fvmlib_command { 626 uint32_t cmd; 627 uint32_t cmdsize; 628 struct fvmlib fvmlib; 629 }; 630 631 struct dylib { 632 uint32_t name; 633 uint32_t timestamp; 634 uint32_t current_version; 635 uint32_t compatibility_version; 636 }; 637 638 struct dylib_command { 639 uint32_t cmd; 640 uint32_t cmdsize; 641 struct dylib dylib; 642 }; 643 644 struct sub_framework_command { 645 uint32_t cmd; 646 uint32_t cmdsize; 647 uint32_t umbrella; 648 }; 649 650 struct sub_client_command { 651 uint32_t cmd; 652 uint32_t cmdsize; 653 uint32_t client; 654 }; 655 656 struct sub_umbrella_command { 657 uint32_t cmd; 658 uint32_t cmdsize; 659 uint32_t sub_umbrella; 660 }; 661 662 struct sub_library_command { 663 uint32_t cmd; 664 uint32_t cmdsize; 665 uint32_t sub_library; 666 }; 667 668 struct prebound_dylib_command { 669 uint32_t cmd; 670 uint32_t cmdsize; 671 uint32_t name; 672 uint32_t nmodules; 673 uint32_t linked_modules; 674 }; 675 676 struct dylinker_command { 677 uint32_t cmd; 678 uint32_t cmdsize; 679 uint32_t name; 680 }; 681 682 struct thread_command { 683 uint32_t cmd; 684 uint32_t cmdsize; 685 }; 686 687 struct routines_command { 688 uint32_t cmd; 689 uint32_t cmdsize; 690 uint32_t init_address; 691 uint32_t init_module; 692 uint32_t reserved1; 693 uint32_t reserved2; 694 uint32_t reserved3; 695 uint32_t reserved4; 696 uint32_t reserved5; 697 uint32_t reserved6; 698 }; 699 700 struct routines_command_64 { 701 uint32_t cmd; 702 uint32_t cmdsize; 703 uint64_t init_address; 704 uint64_t init_module; 705 uint64_t reserved1; 706 uint64_t reserved2; 707 uint64_t reserved3; 708 uint64_t reserved4; 709 uint64_t reserved5; 710 uint64_t reserved6; 711 }; 712 713 struct symtab_command { 714 uint32_t cmd; 715 uint32_t cmdsize; 716 uint32_t symoff; 717 uint32_t nsyms; 718 uint32_t stroff; 719 uint32_t strsize; 720 }; 721 722 struct dysymtab_command { 723 uint32_t cmd; 724 uint32_t cmdsize; 725 uint32_t ilocalsym; 726 uint32_t nlocalsym; 727 uint32_t iextdefsym; 728 uint32_t nextdefsym; 729 uint32_t iundefsym; 730 uint32_t nundefsym; 731 uint32_t tocoff; 732 uint32_t ntoc; 733 uint32_t modtaboff; 734 uint32_t nmodtab; 735 uint32_t extrefsymoff; 736 uint32_t nextrefsyms; 737 uint32_t indirectsymoff; 738 uint32_t nindirectsyms; 739 uint32_t extreloff; 740 uint32_t nextrel; 741 uint32_t locreloff; 742 uint32_t nlocrel; 743 }; 744 745 struct dylib_table_of_contents { 746 uint32_t symbol_index; 747 uint32_t module_index; 748 }; 749 750 struct dylib_module { 751 uint32_t module_name; 752 uint32_t iextdefsym; 753 uint32_t nextdefsym; 754 uint32_t irefsym; 755 uint32_t nrefsym; 756 uint32_t ilocalsym; 757 uint32_t nlocalsym; 758 uint32_t iextrel; 759 uint32_t nextrel; 760 uint32_t iinit_iterm; 761 uint32_t ninit_nterm; 762 uint32_t objc_module_info_addr; 763 uint32_t objc_module_info_size; 764 }; 765 766 struct dylib_module_64 { 767 uint32_t module_name; 768 uint32_t iextdefsym; 769 uint32_t nextdefsym; 770 uint32_t irefsym; 771 uint32_t nrefsym; 772 uint32_t ilocalsym; 773 uint32_t nlocalsym; 774 uint32_t iextrel; 775 uint32_t nextrel; 776 uint32_t iinit_iterm; 777 uint32_t ninit_nterm; 778 uint32_t objc_module_info_size; 779 uint64_t objc_module_info_addr; 780 }; 781 782 struct dylib_reference { 783 uint32_t isym:24, 784 flags:8; 785 }; 786 787 788 struct twolevel_hints_command { 789 uint32_t cmd; 790 uint32_t cmdsize; 791 uint32_t offset; 792 uint32_t nhints; 793 }; 794 795 struct twolevel_hint { 796 uint32_t isub_image:8, 797 itoc:24; 798 }; 799 800 struct prebind_cksum_command { 801 uint32_t cmd; 802 uint32_t cmdsize; 803 uint32_t cksum; 804 }; 805 806 struct uuid_command { 807 uint32_t cmd; 808 uint32_t cmdsize; 809 uint8_t uuid[16]; 810 }; 811 812 struct rpath_command { 813 uint32_t cmd; 814 uint32_t cmdsize; 815 uint32_t path; 816 }; 817 818 struct linkedit_data_command { 819 uint32_t cmd; 820 uint32_t cmdsize; 821 uint32_t dataoff; 822 uint32_t datasize; 823 }; 824 825 struct data_in_code_entry { 826 uint32_t offset; 827 uint16_t length; 828 uint16_t kind; 829 }; 830 831 struct source_version_command { 832 uint32_t cmd; 833 uint32_t cmdsize; 834 uint64_t version; 835 }; 836 837 struct encryption_info_command { 838 uint32_t cmd; 839 uint32_t cmdsize; 840 uint32_t cryptoff; 841 uint32_t cryptsize; 842 uint32_t cryptid; 843 }; 844 845 struct encryption_info_command_64 { 846 uint32_t cmd; 847 uint32_t cmdsize; 848 uint32_t cryptoff; 849 uint32_t cryptsize; 850 uint32_t cryptid; 851 uint32_t pad; 852 }; 853 854 struct version_min_command { 855 uint32_t cmd; // LC_VERSION_MIN_MACOSX or 856 // LC_VERSION_MIN_IPHONEOS 857 uint32_t cmdsize; // sizeof(struct version_min_command) 858 uint32_t version; // X.Y.Z is encoded in nibbles xxxx.yy.zz 859 uint32_t sdk; // X.Y.Z is encoded in nibbles xxxx.yy.zz 860 }; 861 862 struct dyld_info_command { 863 uint32_t cmd; 864 uint32_t cmdsize; 865 uint32_t rebase_off; 866 uint32_t rebase_size; 867 uint32_t bind_off; 868 uint32_t bind_size; 869 uint32_t weak_bind_off; 870 uint32_t weak_bind_size; 871 uint32_t lazy_bind_off; 872 uint32_t lazy_bind_size; 873 uint32_t export_off; 874 uint32_t export_size; 875 }; 876 877 struct linker_option_command { 878 uint32_t cmd; 879 uint32_t cmdsize; 880 uint32_t count; 881 }; 882 883 struct symseg_command { 884 uint32_t cmd; 885 uint32_t cmdsize; 886 uint32_t offset; 887 uint32_t size; 888 }; 889 890 struct ident_command { 891 uint32_t cmd; 892 uint32_t cmdsize; 893 }; 894 895 struct fvmfile_command { 896 uint32_t cmd; 897 uint32_t cmdsize; 898 uint32_t name; 899 uint32_t header_addr; 900 }; 901 902 struct tlv_descriptor_32 { 903 uint32_t thunk; 904 uint32_t key; 905 uint32_t offset; 906 }; 907 908 struct tlv_descriptor_64 { 909 uint64_t thunk; 910 uint64_t key; 911 uint64_t offset; 912 }; 913 914 struct tlv_descriptor { 915 uintptr_t thunk; 916 uintptr_t key; 917 uintptr_t offset; 918 }; 919 920 struct entry_point_command { 921 uint32_t cmd; 922 uint32_t cmdsize; 923 uint64_t entryoff; 924 uint64_t stacksize; 925 }; 926 927 928 // Structs from <mach-o/fat.h> 929 struct fat_header { 930 uint32_t magic; 931 uint32_t nfat_arch; 932 }; 933 934 struct fat_arch { 935 uint32_t cputype; 936 uint32_t cpusubtype; 937 uint32_t offset; 938 uint32_t size; 939 uint32_t align; 940 }; 941 942 // Structs from <mach-o/reloc.h> 943 struct relocation_info { 944 int32_t r_address; 945 uint32_t r_symbolnum:24, 946 r_pcrel:1, 947 r_length:2, 948 r_extern:1, 949 r_type:4; 950 }; 951 952 struct scattered_relocation_info { 953#if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && (BYTE_ORDER == BIG_ENDIAN) 954 uint32_t r_scattered:1, 955 r_pcrel:1, 956 r_length:2, 957 r_type:4, 958 r_address:24; 959#else 960 uint32_t r_address:24, 961 r_type:4, 962 r_length:2, 963 r_pcrel:1, 964 r_scattered:1; 965#endif 966 int32_t r_value; 967 }; 968 969 // Structs NOT from <mach-o/reloc.h>, but that make LLVM's life easier 970 struct any_relocation_info { 971 uint32_t r_word0, r_word1; 972 }; 973 974 // Structs from <mach-o/nlist.h> 975 struct nlist_base { 976 uint32_t n_strx; 977 uint8_t n_type; 978 uint8_t n_sect; 979 uint16_t n_desc; 980 }; 981 982 struct nlist { 983 uint32_t n_strx; 984 uint8_t n_type; 985 uint8_t n_sect; 986 int16_t n_desc; 987 uint32_t n_value; 988 }; 989 990 struct nlist_64 { 991 uint32_t n_strx; 992 uint8_t n_type; 993 uint8_t n_sect; 994 uint16_t n_desc; 995 uint64_t n_value; 996 }; 997 998 999 // Byte order swapping functions for MachO structs 1000 1001 inline void swapStruct(mach_header &mh) { 1002 sys::swapByteOrder(mh.magic); 1003 sys::swapByteOrder(mh.cputype); 1004 sys::swapByteOrder(mh.cpusubtype); 1005 sys::swapByteOrder(mh.filetype); 1006 sys::swapByteOrder(mh.ncmds); 1007 sys::swapByteOrder(mh.sizeofcmds); 1008 sys::swapByteOrder(mh.flags); 1009 } 1010 1011 inline void swapStruct(mach_header_64 &H) { 1012 sys::swapByteOrder(H.magic); 1013 sys::swapByteOrder(H.cputype); 1014 sys::swapByteOrder(H.cpusubtype); 1015 sys::swapByteOrder(H.filetype); 1016 sys::swapByteOrder(H.ncmds); 1017 sys::swapByteOrder(H.sizeofcmds); 1018 sys::swapByteOrder(H.flags); 1019 sys::swapByteOrder(H.reserved); 1020 } 1021 1022 inline void swapStruct(load_command &lc) { 1023 sys::swapByteOrder(lc.cmd); 1024 sys::swapByteOrder(lc.cmdsize); 1025 } 1026 1027 inline void swapStruct(symtab_command &lc) { 1028 sys::swapByteOrder(lc.cmd); 1029 sys::swapByteOrder(lc.cmdsize); 1030 sys::swapByteOrder(lc.symoff); 1031 sys::swapByteOrder(lc.nsyms); 1032 sys::swapByteOrder(lc.stroff); 1033 sys::swapByteOrder(lc.strsize); 1034 } 1035 1036 inline void swapStruct(segment_command_64 &seg) { 1037 sys::swapByteOrder(seg.cmd); 1038 sys::swapByteOrder(seg.cmdsize); 1039 sys::swapByteOrder(seg.vmaddr); 1040 sys::swapByteOrder(seg.vmsize); 1041 sys::swapByteOrder(seg.fileoff); 1042 sys::swapByteOrder(seg.filesize); 1043 sys::swapByteOrder(seg.maxprot); 1044 sys::swapByteOrder(seg.initprot); 1045 sys::swapByteOrder(seg.nsects); 1046 sys::swapByteOrder(seg.flags); 1047 } 1048 1049 inline void swapStruct(segment_command &seg) { 1050 sys::swapByteOrder(seg.cmd); 1051 sys::swapByteOrder(seg.cmdsize); 1052 sys::swapByteOrder(seg.vmaddr); 1053 sys::swapByteOrder(seg.vmsize); 1054 sys::swapByteOrder(seg.fileoff); 1055 sys::swapByteOrder(seg.filesize); 1056 sys::swapByteOrder(seg.maxprot); 1057 sys::swapByteOrder(seg.initprot); 1058 sys::swapByteOrder(seg.nsects); 1059 sys::swapByteOrder(seg.flags); 1060 } 1061 1062 inline void swapStruct(section_64 §) { 1063 sys::swapByteOrder(sect.addr); 1064 sys::swapByteOrder(sect.size); 1065 sys::swapByteOrder(sect.offset); 1066 sys::swapByteOrder(sect.align); 1067 sys::swapByteOrder(sect.reloff); 1068 sys::swapByteOrder(sect.nreloc); 1069 sys::swapByteOrder(sect.flags); 1070 sys::swapByteOrder(sect.reserved1); 1071 sys::swapByteOrder(sect.reserved2); 1072 } 1073 1074 inline void swapStruct(section §) { 1075 sys::swapByteOrder(sect.addr); 1076 sys::swapByteOrder(sect.size); 1077 sys::swapByteOrder(sect.offset); 1078 sys::swapByteOrder(sect.align); 1079 sys::swapByteOrder(sect.reloff); 1080 sys::swapByteOrder(sect.nreloc); 1081 sys::swapByteOrder(sect.flags); 1082 sys::swapByteOrder(sect.reserved1); 1083 sys::swapByteOrder(sect.reserved2); 1084 } 1085 1086 inline void swapStruct(dyld_info_command &info) { 1087 sys::swapByteOrder(info.cmd); 1088 sys::swapByteOrder(info.cmdsize); 1089 sys::swapByteOrder(info.rebase_off); 1090 sys::swapByteOrder(info.rebase_size); 1091 sys::swapByteOrder(info.bind_off); 1092 sys::swapByteOrder(info.bind_size); 1093 sys::swapByteOrder(info.weak_bind_off); 1094 sys::swapByteOrder(info.weak_bind_size); 1095 sys::swapByteOrder(info.lazy_bind_off); 1096 sys::swapByteOrder(info.lazy_bind_size); 1097 sys::swapByteOrder(info.export_off); 1098 sys::swapByteOrder(info.export_size); 1099 } 1100 1101 inline void swapStruct(dylib_command &d) { 1102 sys::swapByteOrder(d.cmd); 1103 sys::swapByteOrder(d.cmdsize); 1104 sys::swapByteOrder(d.dylib.name); 1105 sys::swapByteOrder(d.dylib.timestamp); 1106 sys::swapByteOrder(d.dylib.current_version); 1107 sys::swapByteOrder(d.dylib.compatibility_version); 1108 } 1109 1110 inline void swapStruct(sub_framework_command &s) { 1111 sys::swapByteOrder(s.cmd); 1112 sys::swapByteOrder(s.cmdsize); 1113 sys::swapByteOrder(s.umbrella); 1114 } 1115 1116 inline void swapStruct(sub_umbrella_command &s) { 1117 sys::swapByteOrder(s.cmd); 1118 sys::swapByteOrder(s.cmdsize); 1119 sys::swapByteOrder(s.sub_umbrella); 1120 } 1121 1122 inline void swapStruct(sub_library_command &s) { 1123 sys::swapByteOrder(s.cmd); 1124 sys::swapByteOrder(s.cmdsize); 1125 sys::swapByteOrder(s.sub_library); 1126 } 1127 1128 inline void swapStruct(sub_client_command &s) { 1129 sys::swapByteOrder(s.cmd); 1130 sys::swapByteOrder(s.cmdsize); 1131 sys::swapByteOrder(s.client); 1132 } 1133 1134 inline void swapStruct(routines_command &r) { 1135 sys::swapByteOrder(r.cmd); 1136 sys::swapByteOrder(r.cmdsize); 1137 sys::swapByteOrder(r.init_address); 1138 sys::swapByteOrder(r.init_module); 1139 sys::swapByteOrder(r.reserved1); 1140 sys::swapByteOrder(r.reserved2); 1141 sys::swapByteOrder(r.reserved3); 1142 sys::swapByteOrder(r.reserved4); 1143 sys::swapByteOrder(r.reserved5); 1144 sys::swapByteOrder(r.reserved6); 1145 } 1146 1147 inline void swapStruct(routines_command_64 &r) { 1148 sys::swapByteOrder(r.cmd); 1149 sys::swapByteOrder(r.cmdsize); 1150 sys::swapByteOrder(r.init_address); 1151 sys::swapByteOrder(r.init_module); 1152 sys::swapByteOrder(r.reserved1); 1153 sys::swapByteOrder(r.reserved2); 1154 sys::swapByteOrder(r.reserved3); 1155 sys::swapByteOrder(r.reserved4); 1156 sys::swapByteOrder(r.reserved5); 1157 sys::swapByteOrder(r.reserved6); 1158 } 1159 1160 inline void swapStruct(thread_command &t) { 1161 sys::swapByteOrder(t.cmd); 1162 sys::swapByteOrder(t.cmdsize); 1163 } 1164 1165 inline void swapStruct(dylinker_command &d) { 1166 sys::swapByteOrder(d.cmd); 1167 sys::swapByteOrder(d.cmdsize); 1168 sys::swapByteOrder(d.name); 1169 } 1170 1171 inline void swapStruct(uuid_command &u) { 1172 sys::swapByteOrder(u.cmd); 1173 sys::swapByteOrder(u.cmdsize); 1174 } 1175 1176 inline void swapStruct(rpath_command &r) { 1177 sys::swapByteOrder(r.cmd); 1178 sys::swapByteOrder(r.cmdsize); 1179 sys::swapByteOrder(r.path); 1180 } 1181 1182 inline void swapStruct(source_version_command &s) { 1183 sys::swapByteOrder(s.cmd); 1184 sys::swapByteOrder(s.cmdsize); 1185 sys::swapByteOrder(s.version); 1186 } 1187 1188 inline void swapStruct(entry_point_command &e) { 1189 sys::swapByteOrder(e.cmd); 1190 sys::swapByteOrder(e.cmdsize); 1191 sys::swapByteOrder(e.entryoff); 1192 sys::swapByteOrder(e.stacksize); 1193 } 1194 1195 inline void swapStruct(encryption_info_command &e) { 1196 sys::swapByteOrder(e.cmd); 1197 sys::swapByteOrder(e.cmdsize); 1198 sys::swapByteOrder(e.cryptoff); 1199 sys::swapByteOrder(e.cryptsize); 1200 sys::swapByteOrder(e.cryptid); 1201 } 1202 1203 inline void swapStruct(encryption_info_command_64 &e) { 1204 sys::swapByteOrder(e.cmd); 1205 sys::swapByteOrder(e.cmdsize); 1206 sys::swapByteOrder(e.cryptoff); 1207 sys::swapByteOrder(e.cryptsize); 1208 sys::swapByteOrder(e.cryptid); 1209 sys::swapByteOrder(e.pad); 1210 } 1211 1212 inline void swapStruct(dysymtab_command &dst) { 1213 sys::swapByteOrder(dst.cmd); 1214 sys::swapByteOrder(dst.cmdsize); 1215 sys::swapByteOrder(dst.ilocalsym); 1216 sys::swapByteOrder(dst.nlocalsym); 1217 sys::swapByteOrder(dst.iextdefsym); 1218 sys::swapByteOrder(dst.nextdefsym); 1219 sys::swapByteOrder(dst.iundefsym); 1220 sys::swapByteOrder(dst.nundefsym); 1221 sys::swapByteOrder(dst.tocoff); 1222 sys::swapByteOrder(dst.ntoc); 1223 sys::swapByteOrder(dst.modtaboff); 1224 sys::swapByteOrder(dst.nmodtab); 1225 sys::swapByteOrder(dst.extrefsymoff); 1226 sys::swapByteOrder(dst.nextrefsyms); 1227 sys::swapByteOrder(dst.indirectsymoff); 1228 sys::swapByteOrder(dst.nindirectsyms); 1229 sys::swapByteOrder(dst.extreloff); 1230 sys::swapByteOrder(dst.nextrel); 1231 sys::swapByteOrder(dst.locreloff); 1232 sys::swapByteOrder(dst.nlocrel); 1233 } 1234 1235 inline void swapStruct(any_relocation_info &reloc) { 1236 sys::swapByteOrder(reloc.r_word0); 1237 sys::swapByteOrder(reloc.r_word1); 1238 } 1239 1240 inline void swapStruct(nlist_base &S) { 1241 sys::swapByteOrder(S.n_strx); 1242 sys::swapByteOrder(S.n_desc); 1243 } 1244 1245 inline void swapStruct(nlist &sym) { 1246 sys::swapByteOrder(sym.n_strx); 1247 sys::swapByteOrder(sym.n_desc); 1248 sys::swapByteOrder(sym.n_value); 1249 } 1250 1251 inline void swapStruct(nlist_64 &sym) { 1252 sys::swapByteOrder(sym.n_strx); 1253 sys::swapByteOrder(sym.n_desc); 1254 sys::swapByteOrder(sym.n_value); 1255 } 1256 1257 inline void swapStruct(linkedit_data_command &C) { 1258 sys::swapByteOrder(C.cmd); 1259 sys::swapByteOrder(C.cmdsize); 1260 sys::swapByteOrder(C.dataoff); 1261 sys::swapByteOrder(C.datasize); 1262 } 1263 1264 inline void swapStruct(linker_option_command &C) { 1265 sys::swapByteOrder(C.cmd); 1266 sys::swapByteOrder(C.cmdsize); 1267 sys::swapByteOrder(C.count); 1268 } 1269 1270 inline void swapStruct(version_min_command&C) { 1271 sys::swapByteOrder(C.cmd); 1272 sys::swapByteOrder(C.cmdsize); 1273 sys::swapByteOrder(C.version); 1274 sys::swapByteOrder(C.sdk); 1275 } 1276 1277 inline void swapStruct(data_in_code_entry &C) { 1278 sys::swapByteOrder(C.offset); 1279 sys::swapByteOrder(C.length); 1280 sys::swapByteOrder(C.kind); 1281 } 1282 1283 inline void swapStruct(uint32_t &C) { 1284 sys::swapByteOrder(C); 1285 } 1286 1287 // Get/Set functions from <mach-o/nlist.h> 1288 1289 static inline uint16_t GET_LIBRARY_ORDINAL(uint16_t n_desc) { 1290 return (((n_desc) >> 8u) & 0xffu); 1291 } 1292 1293 static inline void SET_LIBRARY_ORDINAL(uint16_t &n_desc, uint8_t ordinal) { 1294 n_desc = (((n_desc) & 0x00ff) | (((ordinal) & 0xff) << 8)); 1295 } 1296 1297 static inline uint8_t GET_COMM_ALIGN (uint16_t n_desc) { 1298 return (n_desc >> 8u) & 0x0fu; 1299 } 1300 1301 static inline void SET_COMM_ALIGN (uint16_t &n_desc, uint8_t align) { 1302 n_desc = ((n_desc & 0xf0ffu) | ((align & 0x0fu) << 8u)); 1303 } 1304 1305 // Enums from <mach/machine.h> 1306 enum : uint32_t { 1307 // Capability bits used in the definition of cpu_type. 1308 CPU_ARCH_MASK = 0xff000000, // Mask for architecture bits 1309 CPU_ARCH_ABI64 = 0x01000000 // 64 bit ABI 1310 }; 1311 1312 // Constants for the cputype field. 1313 enum CPUType { 1314 CPU_TYPE_ANY = -1, 1315 CPU_TYPE_X86 = 7, 1316 CPU_TYPE_I386 = CPU_TYPE_X86, 1317 CPU_TYPE_X86_64 = CPU_TYPE_X86 | CPU_ARCH_ABI64, 1318 /* CPU_TYPE_MIPS = 8, */ 1319 CPU_TYPE_MC98000 = 10, // Old Motorola PowerPC 1320 CPU_TYPE_ARM = 12, 1321 CPU_TYPE_ARM64 = CPU_TYPE_ARM | CPU_ARCH_ABI64, 1322 CPU_TYPE_SPARC = 14, 1323 CPU_TYPE_POWERPC = 18, 1324 CPU_TYPE_POWERPC64 = CPU_TYPE_POWERPC | CPU_ARCH_ABI64 1325 }; 1326 1327 enum : uint32_t { 1328 // Capability bits used in the definition of cpusubtype. 1329 CPU_SUBTYPE_MASK = 0xff000000, // Mask for architecture bits 1330 CPU_SUBTYPE_LIB64 = 0x80000000, // 64 bit libraries 1331 1332 // Special CPU subtype constants. 1333 CPU_SUBTYPE_MULTIPLE = ~0u 1334 }; 1335 1336 // Constants for the cpusubtype field. 1337 enum CPUSubTypeX86 { 1338 CPU_SUBTYPE_I386_ALL = 3, 1339 CPU_SUBTYPE_386 = 3, 1340 CPU_SUBTYPE_486 = 4, 1341 CPU_SUBTYPE_486SX = 0x84, 1342 CPU_SUBTYPE_586 = 5, 1343 CPU_SUBTYPE_PENT = CPU_SUBTYPE_586, 1344 CPU_SUBTYPE_PENTPRO = 0x16, 1345 CPU_SUBTYPE_PENTII_M3 = 0x36, 1346 CPU_SUBTYPE_PENTII_M5 = 0x56, 1347 CPU_SUBTYPE_CELERON = 0x67, 1348 CPU_SUBTYPE_CELERON_MOBILE = 0x77, 1349 CPU_SUBTYPE_PENTIUM_3 = 0x08, 1350 CPU_SUBTYPE_PENTIUM_3_M = 0x18, 1351 CPU_SUBTYPE_PENTIUM_3_XEON = 0x28, 1352 CPU_SUBTYPE_PENTIUM_M = 0x09, 1353 CPU_SUBTYPE_PENTIUM_4 = 0x0a, 1354 CPU_SUBTYPE_PENTIUM_4_M = 0x1a, 1355 CPU_SUBTYPE_ITANIUM = 0x0b, 1356 CPU_SUBTYPE_ITANIUM_2 = 0x1b, 1357 CPU_SUBTYPE_XEON = 0x0c, 1358 CPU_SUBTYPE_XEON_MP = 0x1c, 1359 1360 CPU_SUBTYPE_X86_ALL = 3, 1361 CPU_SUBTYPE_X86_64_ALL = 3, 1362 CPU_SUBTYPE_X86_ARCH1 = 4, 1363 CPU_SUBTYPE_X86_64_H = 8 1364 }; 1365 static inline int CPU_SUBTYPE_INTEL(int Family, int Model) { 1366 return Family | (Model << 4); 1367 } 1368 static inline int CPU_SUBTYPE_INTEL_FAMILY(CPUSubTypeX86 ST) { 1369 return ((int)ST) & 0x0f; 1370 } 1371 static inline int CPU_SUBTYPE_INTEL_MODEL(CPUSubTypeX86 ST) { 1372 return ((int)ST) >> 4; 1373 } 1374 enum { 1375 CPU_SUBTYPE_INTEL_FAMILY_MAX = 15, 1376 CPU_SUBTYPE_INTEL_MODEL_ALL = 0 1377 }; 1378 1379 enum CPUSubTypeARM { 1380 CPU_SUBTYPE_ARM_ALL = 0, 1381 CPU_SUBTYPE_ARM_V4T = 5, 1382 CPU_SUBTYPE_ARM_V6 = 6, 1383 CPU_SUBTYPE_ARM_V5 = 7, 1384 CPU_SUBTYPE_ARM_V5TEJ = 7, 1385 CPU_SUBTYPE_ARM_XSCALE = 8, 1386 CPU_SUBTYPE_ARM_V7 = 9, 1387 // unused ARM_V7F = 10, 1388 CPU_SUBTYPE_ARM_V7S = 11, 1389 CPU_SUBTYPE_ARM_V7K = 12, 1390 CPU_SUBTYPE_ARM_V6M = 14, 1391 CPU_SUBTYPE_ARM_V7M = 15, 1392 CPU_SUBTYPE_ARM_V7EM = 16 1393 }; 1394 1395 enum CPUSubTypeARM64 { 1396 CPU_SUBTYPE_ARM64_ALL = 0 1397 }; 1398 1399 enum CPUSubTypeSPARC { 1400 CPU_SUBTYPE_SPARC_ALL = 0 1401 }; 1402 1403 enum CPUSubTypePowerPC { 1404 CPU_SUBTYPE_POWERPC_ALL = 0, 1405 CPU_SUBTYPE_POWERPC_601 = 1, 1406 CPU_SUBTYPE_POWERPC_602 = 2, 1407 CPU_SUBTYPE_POWERPC_603 = 3, 1408 CPU_SUBTYPE_POWERPC_603e = 4, 1409 CPU_SUBTYPE_POWERPC_603ev = 5, 1410 CPU_SUBTYPE_POWERPC_604 = 6, 1411 CPU_SUBTYPE_POWERPC_604e = 7, 1412 CPU_SUBTYPE_POWERPC_620 = 8, 1413 CPU_SUBTYPE_POWERPC_750 = 9, 1414 CPU_SUBTYPE_POWERPC_7400 = 10, 1415 CPU_SUBTYPE_POWERPC_7450 = 11, 1416 CPU_SUBTYPE_POWERPC_970 = 100, 1417 1418 CPU_SUBTYPE_MC980000_ALL = CPU_SUBTYPE_POWERPC_ALL, 1419 CPU_SUBTYPE_MC98601 = CPU_SUBTYPE_POWERPC_601 1420 }; 1421 1422 struct x86_thread_state64_t { 1423 uint64_t rax; 1424 uint64_t rbx; 1425 uint64_t rcx; 1426 uint64_t rdx; 1427 uint64_t rdi; 1428 uint64_t rsi; 1429 uint64_t rbp; 1430 uint64_t rsp; 1431 uint64_t r8; 1432 uint64_t r9; 1433 uint64_t r10; 1434 uint64_t r11; 1435 uint64_t r12; 1436 uint64_t r13; 1437 uint64_t r14; 1438 uint64_t r15; 1439 uint64_t rip; 1440 uint64_t rflags; 1441 uint64_t cs; 1442 uint64_t fs; 1443 uint64_t gs; 1444 }; 1445 1446 enum x86_fp_control_precis { 1447 x86_FP_PREC_24B = 0, 1448 x86_FP_PREC_53B = 2, 1449 x86_FP_PREC_64B = 3 1450 }; 1451 1452 enum x86_fp_control_rc { 1453 x86_FP_RND_NEAR = 0, 1454 x86_FP_RND_DOWN = 1, 1455 x86_FP_RND_UP = 2, 1456 x86_FP_CHOP = 3 1457 }; 1458 1459 struct fp_control_t { 1460 unsigned short 1461 invalid :1, 1462 denorm :1, 1463 zdiv :1, 1464 ovrfl :1, 1465 undfl :1, 1466 precis :1, 1467 :2, 1468 pc :2, 1469 rc :2, 1470 :1, 1471 :3; 1472 }; 1473 1474 struct fp_status_t { 1475 unsigned short 1476 invalid :1, 1477 denorm :1, 1478 zdiv :1, 1479 ovrfl :1, 1480 undfl :1, 1481 precis :1, 1482 stkflt :1, 1483 errsumm :1, 1484 c0 :1, 1485 c1 :1, 1486 c2 :1, 1487 tos :3, 1488 c3 :1, 1489 busy :1; 1490 }; 1491 1492 struct mmst_reg_t { 1493 char mmst_reg[10]; 1494 char mmst_rsrv[6]; 1495 }; 1496 1497 struct xmm_reg_t { 1498 char xmm_reg[16]; 1499 }; 1500 1501 struct x86_float_state64_t { 1502 int32_t fpu_reserved[2]; 1503 fp_control_t fpu_fcw; 1504 fp_status_t fpu_fsw; 1505 uint8_t fpu_ftw; 1506 uint8_t fpu_rsrv1; 1507 uint16_t fpu_fop; 1508 uint32_t fpu_ip; 1509 uint16_t fpu_cs; 1510 uint16_t fpu_rsrv2; 1511 uint32_t fpu_dp; 1512 uint16_t fpu_ds; 1513 uint16_t fpu_rsrv3; 1514 uint32_t fpu_mxcsr; 1515 uint32_t fpu_mxcsrmask; 1516 mmst_reg_t fpu_stmm0; 1517 mmst_reg_t fpu_stmm1; 1518 mmst_reg_t fpu_stmm2; 1519 mmst_reg_t fpu_stmm3; 1520 mmst_reg_t fpu_stmm4; 1521 mmst_reg_t fpu_stmm5; 1522 mmst_reg_t fpu_stmm6; 1523 mmst_reg_t fpu_stmm7; 1524 xmm_reg_t fpu_xmm0; 1525 xmm_reg_t fpu_xmm1; 1526 xmm_reg_t fpu_xmm2; 1527 xmm_reg_t fpu_xmm3; 1528 xmm_reg_t fpu_xmm4; 1529 xmm_reg_t fpu_xmm5; 1530 xmm_reg_t fpu_xmm6; 1531 xmm_reg_t fpu_xmm7; 1532 xmm_reg_t fpu_xmm8; 1533 xmm_reg_t fpu_xmm9; 1534 xmm_reg_t fpu_xmm10; 1535 xmm_reg_t fpu_xmm11; 1536 xmm_reg_t fpu_xmm12; 1537 xmm_reg_t fpu_xmm13; 1538 xmm_reg_t fpu_xmm14; 1539 xmm_reg_t fpu_xmm15; 1540 char fpu_rsrv4[6*16]; 1541 uint32_t fpu_reserved1; 1542 }; 1543 1544 struct x86_exception_state64_t { 1545 uint16_t trapno; 1546 uint16_t cpu; 1547 uint32_t err; 1548 uint64_t faultvaddr; 1549 }; 1550 1551 inline void swapStruct(x86_thread_state64_t &x) { 1552 sys::swapByteOrder(x.rax); 1553 sys::swapByteOrder(x.rbx); 1554 sys::swapByteOrder(x.rcx); 1555 sys::swapByteOrder(x.rdx); 1556 sys::swapByteOrder(x.rdi); 1557 sys::swapByteOrder(x.rsi); 1558 sys::swapByteOrder(x.rbp); 1559 sys::swapByteOrder(x.rsp); 1560 sys::swapByteOrder(x.r8); 1561 sys::swapByteOrder(x.r9); 1562 sys::swapByteOrder(x.r10); 1563 sys::swapByteOrder(x.r11); 1564 sys::swapByteOrder(x.r12); 1565 sys::swapByteOrder(x.r13); 1566 sys::swapByteOrder(x.r14); 1567 sys::swapByteOrder(x.r15); 1568 sys::swapByteOrder(x.rip); 1569 sys::swapByteOrder(x.rflags); 1570 sys::swapByteOrder(x.cs); 1571 sys::swapByteOrder(x.fs); 1572 sys::swapByteOrder(x.gs); 1573 } 1574 1575 inline void swapStruct(x86_float_state64_t &x) { 1576 sys::swapByteOrder(x.fpu_reserved[0]); 1577 sys::swapByteOrder(x.fpu_reserved[1]); 1578 // TODO swap: fp_control_t fpu_fcw; 1579 // TODO swap: fp_status_t fpu_fsw; 1580 sys::swapByteOrder(x.fpu_fop); 1581 sys::swapByteOrder(x.fpu_ip); 1582 sys::swapByteOrder(x.fpu_cs); 1583 sys::swapByteOrder(x.fpu_rsrv2); 1584 sys::swapByteOrder(x.fpu_dp); 1585 sys::swapByteOrder(x.fpu_ds); 1586 sys::swapByteOrder(x.fpu_rsrv3); 1587 sys::swapByteOrder(x.fpu_mxcsr); 1588 sys::swapByteOrder(x.fpu_mxcsrmask); 1589 sys::swapByteOrder(x.fpu_reserved1); 1590 } 1591 1592 inline void swapStruct(x86_exception_state64_t &x) { 1593 sys::swapByteOrder(x.trapno); 1594 sys::swapByteOrder(x.cpu); 1595 sys::swapByteOrder(x.err); 1596 sys::swapByteOrder(x.faultvaddr); 1597 } 1598 1599 struct x86_state_hdr_t { 1600 uint32_t flavor; 1601 uint32_t count; 1602 }; 1603 1604 struct x86_thread_state_t { 1605 x86_state_hdr_t tsh; 1606 union { 1607 x86_thread_state64_t ts64; 1608 } uts; 1609 }; 1610 1611 struct x86_float_state_t { 1612 x86_state_hdr_t fsh; 1613 union { 1614 x86_float_state64_t fs64; 1615 } ufs; 1616 }; 1617 1618 struct x86_exception_state_t { 1619 x86_state_hdr_t esh; 1620 union { 1621 x86_exception_state64_t es64; 1622 } ues; 1623 }; 1624 1625 inline void swapStruct(x86_state_hdr_t &x) { 1626 sys::swapByteOrder(x.flavor); 1627 sys::swapByteOrder(x.count); 1628 } 1629 1630 enum X86ThreadFlavors { 1631 x86_THREAD_STATE32 = 1, 1632 x86_FLOAT_STATE32 = 2, 1633 x86_EXCEPTION_STATE32 = 3, 1634 x86_THREAD_STATE64 = 4, 1635 x86_FLOAT_STATE64 = 5, 1636 x86_EXCEPTION_STATE64 = 6, 1637 x86_THREAD_STATE = 7, 1638 x86_FLOAT_STATE = 8, 1639 x86_EXCEPTION_STATE = 9, 1640 x86_DEBUG_STATE32 = 10, 1641 x86_DEBUG_STATE64 = 11, 1642 x86_DEBUG_STATE = 12 1643 }; 1644 1645 inline void swapStruct(x86_thread_state_t &x) { 1646 swapStruct(x.tsh); 1647 if (x.tsh.flavor == x86_THREAD_STATE64) 1648 swapStruct(x.uts.ts64); 1649 } 1650 1651 inline void swapStruct(x86_float_state_t &x) { 1652 swapStruct(x.fsh); 1653 if (x.fsh.flavor == x86_FLOAT_STATE64) 1654 swapStruct(x.ufs.fs64); 1655 } 1656 1657 inline void swapStruct(x86_exception_state_t &x) { 1658 swapStruct(x.esh); 1659 if (x.esh.flavor == x86_EXCEPTION_STATE64) 1660 swapStruct(x.ues.es64); 1661 } 1662 1663 const uint32_t x86_THREAD_STATE64_COUNT = 1664 sizeof(x86_thread_state64_t) / sizeof(uint32_t); 1665 const uint32_t x86_FLOAT_STATE64_COUNT = 1666 sizeof(x86_float_state64_t) / sizeof(uint32_t); 1667 const uint32_t x86_EXCEPTION_STATE64_COUNT = 1668 sizeof(x86_exception_state64_t) / sizeof(uint32_t); 1669 1670 const uint32_t x86_THREAD_STATE_COUNT = 1671 sizeof(x86_thread_state_t) / sizeof(uint32_t); 1672 const uint32_t x86_FLOAT_STATE_COUNT = 1673 sizeof(x86_float_state_t) / sizeof(uint32_t); 1674 const uint32_t x86_EXCEPTION_STATE_COUNT = 1675 sizeof(x86_exception_state_t) / sizeof(uint32_t); 1676 1677 } // end namespace MachO 1678} // end namespace llvm 1679 1680#endif 1681