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 LC_VERSION_MIN_TVOS = 0x0000002Fu, 137 LC_VERSION_MIN_WATCHOS = 0x00000030u, 138 }; 139 140 enum : uint32_t { 141 // Constant bits for the "flags" field in llvm::MachO::segment_command 142 SG_HIGHVM = 0x1u, 143 SG_FVMLIB = 0x2u, 144 SG_NORELOC = 0x4u, 145 SG_PROTECTED_VERSION_1 = 0x8u, 146 147 // Constant masks for the "flags" field in llvm::MachO::section and 148 // llvm::MachO::section_64 149 SECTION_TYPE = 0x000000ffu, // SECTION_TYPE 150 SECTION_ATTRIBUTES = 0xffffff00u, // SECTION_ATTRIBUTES 151 SECTION_ATTRIBUTES_USR = 0xff000000u, // SECTION_ATTRIBUTES_USR 152 SECTION_ATTRIBUTES_SYS = 0x00ffff00u // SECTION_ATTRIBUTES_SYS 153 }; 154 155 /// These are the section type and attributes fields. A MachO section can 156 /// have only one Type, but can have any of the attributes specified. 157 enum SectionType : uint32_t { 158 // Constant masks for the "flags[7:0]" field in llvm::MachO::section and 159 // llvm::MachO::section_64 (mask "flags" with SECTION_TYPE) 160 161 /// S_REGULAR - Regular section. 162 S_REGULAR = 0x00u, 163 /// S_ZEROFILL - Zero fill on demand section. 164 S_ZEROFILL = 0x01u, 165 /// S_CSTRING_LITERALS - Section with literal C strings. 166 S_CSTRING_LITERALS = 0x02u, 167 /// S_4BYTE_LITERALS - Section with 4 byte literals. 168 S_4BYTE_LITERALS = 0x03u, 169 /// S_8BYTE_LITERALS - Section with 8 byte literals. 170 S_8BYTE_LITERALS = 0x04u, 171 /// S_LITERAL_POINTERS - Section with pointers to literals. 172 S_LITERAL_POINTERS = 0x05u, 173 /// S_NON_LAZY_SYMBOL_POINTERS - Section with non-lazy symbol pointers. 174 S_NON_LAZY_SYMBOL_POINTERS = 0x06u, 175 /// S_LAZY_SYMBOL_POINTERS - Section with lazy symbol pointers. 176 S_LAZY_SYMBOL_POINTERS = 0x07u, 177 /// S_SYMBOL_STUBS - Section with symbol stubs, byte size of stub in 178 /// the Reserved2 field. 179 S_SYMBOL_STUBS = 0x08u, 180 /// S_MOD_INIT_FUNC_POINTERS - Section with only function pointers for 181 /// initialization. 182 S_MOD_INIT_FUNC_POINTERS = 0x09u, 183 /// S_MOD_TERM_FUNC_POINTERS - Section with only function pointers for 184 /// termination. 185 S_MOD_TERM_FUNC_POINTERS = 0x0au, 186 /// S_COALESCED - Section contains symbols that are to be coalesced. 187 S_COALESCED = 0x0bu, 188 /// S_GB_ZEROFILL - Zero fill on demand section (that can be larger than 4 189 /// gigabytes). 190 S_GB_ZEROFILL = 0x0cu, 191 /// S_INTERPOSING - Section with only pairs of function pointers for 192 /// interposing. 193 S_INTERPOSING = 0x0du, 194 /// S_16BYTE_LITERALS - Section with only 16 byte literals. 195 S_16BYTE_LITERALS = 0x0eu, 196 /// S_DTRACE_DOF - Section contains DTrace Object Format. 197 S_DTRACE_DOF = 0x0fu, 198 /// S_LAZY_DYLIB_SYMBOL_POINTERS - Section with lazy symbol pointers to 199 /// lazy loaded dylibs. 200 S_LAZY_DYLIB_SYMBOL_POINTERS = 0x10u, 201 /// S_THREAD_LOCAL_REGULAR - Thread local data section. 202 S_THREAD_LOCAL_REGULAR = 0x11u, 203 /// S_THREAD_LOCAL_ZEROFILL - Thread local zerofill section. 204 S_THREAD_LOCAL_ZEROFILL = 0x12u, 205 /// S_THREAD_LOCAL_VARIABLES - Section with thread local variable 206 /// structure data. 207 S_THREAD_LOCAL_VARIABLES = 0x13u, 208 /// S_THREAD_LOCAL_VARIABLE_POINTERS - Section with pointers to thread 209 /// local structures. 210 S_THREAD_LOCAL_VARIABLE_POINTERS = 0x14u, 211 /// S_THREAD_LOCAL_INIT_FUNCTION_POINTERS - Section with thread local 212 /// variable initialization pointers to functions. 213 S_THREAD_LOCAL_INIT_FUNCTION_POINTERS = 0x15u, 214 215 LAST_KNOWN_SECTION_TYPE = S_THREAD_LOCAL_INIT_FUNCTION_POINTERS 216 }; 217 218 enum : uint32_t { 219 // Constant masks for the "flags[31:24]" field in llvm::MachO::section and 220 // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_USR) 221 222 /// S_ATTR_PURE_INSTRUCTIONS - Section contains only true machine 223 /// instructions. 224 S_ATTR_PURE_INSTRUCTIONS = 0x80000000u, 225 /// S_ATTR_NO_TOC - Section contains coalesced symbols that are not to be 226 /// in a ranlib table of contents. 227 S_ATTR_NO_TOC = 0x40000000u, 228 /// S_ATTR_STRIP_STATIC_SYMS - Ok to strip static symbols in this section 229 /// in files with the MY_DYLDLINK flag. 230 S_ATTR_STRIP_STATIC_SYMS = 0x20000000u, 231 /// S_ATTR_NO_DEAD_STRIP - No dead stripping. 232 S_ATTR_NO_DEAD_STRIP = 0x10000000u, 233 /// S_ATTR_LIVE_SUPPORT - Blocks are live if they reference live blocks. 234 S_ATTR_LIVE_SUPPORT = 0x08000000u, 235 /// S_ATTR_SELF_MODIFYING_CODE - Used with i386 code stubs written on by 236 /// dyld. 237 S_ATTR_SELF_MODIFYING_CODE = 0x04000000u, 238 /// S_ATTR_DEBUG - A debug section. 239 S_ATTR_DEBUG = 0x02000000u, 240 241 // Constant masks for the "flags[23:8]" field in llvm::MachO::section and 242 // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_SYS) 243 244 /// S_ATTR_SOME_INSTRUCTIONS - Section contains some machine instructions. 245 S_ATTR_SOME_INSTRUCTIONS = 0x00000400u, 246 /// S_ATTR_EXT_RELOC - Section has external relocation entries. 247 S_ATTR_EXT_RELOC = 0x00000200u, 248 /// S_ATTR_LOC_RELOC - Section has local relocation entries. 249 S_ATTR_LOC_RELOC = 0x00000100u, 250 251 // Constant masks for the value of an indirect symbol in an indirect 252 // symbol table 253 INDIRECT_SYMBOL_LOCAL = 0x80000000u, 254 INDIRECT_SYMBOL_ABS = 0x40000000u 255 }; 256 257 enum DataRegionType { 258 // Constants for the "kind" field in a data_in_code_entry structure 259 DICE_KIND_DATA = 1u, 260 DICE_KIND_JUMP_TABLE8 = 2u, 261 DICE_KIND_JUMP_TABLE16 = 3u, 262 DICE_KIND_JUMP_TABLE32 = 4u, 263 DICE_KIND_ABS_JUMP_TABLE32 = 5u 264 }; 265 266 enum RebaseType { 267 REBASE_TYPE_POINTER = 1u, 268 REBASE_TYPE_TEXT_ABSOLUTE32 = 2u, 269 REBASE_TYPE_TEXT_PCREL32 = 3u 270 }; 271 272 enum { 273 REBASE_OPCODE_MASK = 0xF0u, 274 REBASE_IMMEDIATE_MASK = 0x0Fu 275 }; 276 277 enum RebaseOpcode { 278 REBASE_OPCODE_DONE = 0x00u, 279 REBASE_OPCODE_SET_TYPE_IMM = 0x10u, 280 REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB = 0x20u, 281 REBASE_OPCODE_ADD_ADDR_ULEB = 0x30u, 282 REBASE_OPCODE_ADD_ADDR_IMM_SCALED = 0x40u, 283 REBASE_OPCODE_DO_REBASE_IMM_TIMES = 0x50u, 284 REBASE_OPCODE_DO_REBASE_ULEB_TIMES = 0x60u, 285 REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB = 0x70u, 286 REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB = 0x80u 287 }; 288 289 enum BindType { 290 BIND_TYPE_POINTER = 1u, 291 BIND_TYPE_TEXT_ABSOLUTE32 = 2u, 292 BIND_TYPE_TEXT_PCREL32 = 3u 293 }; 294 295 enum BindSpecialDylib { 296 BIND_SPECIAL_DYLIB_SELF = 0, 297 BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE = -1, 298 BIND_SPECIAL_DYLIB_FLAT_LOOKUP = -2 299 }; 300 301 enum { 302 BIND_SYMBOL_FLAGS_WEAK_IMPORT = 0x1u, 303 BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION = 0x8u, 304 305 BIND_OPCODE_MASK = 0xF0u, 306 BIND_IMMEDIATE_MASK = 0x0Fu 307 }; 308 309 enum BindOpcode { 310 BIND_OPCODE_DONE = 0x00u, 311 BIND_OPCODE_SET_DYLIB_ORDINAL_IMM = 0x10u, 312 BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB = 0x20u, 313 BIND_OPCODE_SET_DYLIB_SPECIAL_IMM = 0x30u, 314 BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM = 0x40u, 315 BIND_OPCODE_SET_TYPE_IMM = 0x50u, 316 BIND_OPCODE_SET_ADDEND_SLEB = 0x60u, 317 BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB = 0x70u, 318 BIND_OPCODE_ADD_ADDR_ULEB = 0x80u, 319 BIND_OPCODE_DO_BIND = 0x90u, 320 BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB = 0xA0u, 321 BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED = 0xB0u, 322 BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB = 0xC0u 323 }; 324 325 enum { 326 EXPORT_SYMBOL_FLAGS_KIND_MASK = 0x03u, 327 EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION = 0x04u, 328 EXPORT_SYMBOL_FLAGS_REEXPORT = 0x08u, 329 EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER = 0x10u 330 }; 331 332 enum ExportSymbolKind { 333 EXPORT_SYMBOL_FLAGS_KIND_REGULAR = 0x00u, 334 EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL = 0x01u, 335 EXPORT_SYMBOL_FLAGS_KIND_ABSOLUTE = 0x02u 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 // Constant values for the r_type field in an x86_64 architecture 510 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info 511 // structure 512 X86_64_RELOC_UNSIGNED = 0, 513 X86_64_RELOC_SIGNED = 1, 514 X86_64_RELOC_BRANCH = 2, 515 X86_64_RELOC_GOT_LOAD = 3, 516 X86_64_RELOC_GOT = 4, 517 X86_64_RELOC_SUBTRACTOR = 5, 518 X86_64_RELOC_SIGNED_1 = 6, 519 X86_64_RELOC_SIGNED_2 = 7, 520 X86_64_RELOC_SIGNED_4 = 8, 521 X86_64_RELOC_TLV = 9 522 }; 523 524 // Values for segment_command.initprot. 525 // From <mach/vm_prot.h> 526 enum { 527 VM_PROT_READ = 0x1, 528 VM_PROT_WRITE = 0x2, 529 VM_PROT_EXECUTE = 0x4 530 }; 531 532 // Structs from <mach-o/loader.h> 533 534 struct mach_header { 535 uint32_t magic; 536 uint32_t cputype; 537 uint32_t cpusubtype; 538 uint32_t filetype; 539 uint32_t ncmds; 540 uint32_t sizeofcmds; 541 uint32_t flags; 542 }; 543 544 struct mach_header_64 { 545 uint32_t magic; 546 uint32_t cputype; 547 uint32_t cpusubtype; 548 uint32_t filetype; 549 uint32_t ncmds; 550 uint32_t sizeofcmds; 551 uint32_t flags; 552 uint32_t reserved; 553 }; 554 555 struct load_command { 556 uint32_t cmd; 557 uint32_t cmdsize; 558 }; 559 560 struct segment_command { 561 uint32_t cmd; 562 uint32_t cmdsize; 563 char segname[16]; 564 uint32_t vmaddr; 565 uint32_t vmsize; 566 uint32_t fileoff; 567 uint32_t filesize; 568 uint32_t maxprot; 569 uint32_t initprot; 570 uint32_t nsects; 571 uint32_t flags; 572 }; 573 574 struct segment_command_64 { 575 uint32_t cmd; 576 uint32_t cmdsize; 577 char segname[16]; 578 uint64_t vmaddr; 579 uint64_t vmsize; 580 uint64_t fileoff; 581 uint64_t filesize; 582 uint32_t maxprot; 583 uint32_t initprot; 584 uint32_t nsects; 585 uint32_t flags; 586 }; 587 588 struct section { 589 char sectname[16]; 590 char segname[16]; 591 uint32_t addr; 592 uint32_t size; 593 uint32_t offset; 594 uint32_t align; 595 uint32_t reloff; 596 uint32_t nreloc; 597 uint32_t flags; 598 uint32_t reserved1; 599 uint32_t reserved2; 600 }; 601 602 struct section_64 { 603 char sectname[16]; 604 char segname[16]; 605 uint64_t addr; 606 uint64_t size; 607 uint32_t offset; 608 uint32_t align; 609 uint32_t reloff; 610 uint32_t nreloc; 611 uint32_t flags; 612 uint32_t reserved1; 613 uint32_t reserved2; 614 uint32_t reserved3; 615 }; 616 617 struct fvmlib { 618 uint32_t name; 619 uint32_t minor_version; 620 uint32_t header_addr; 621 }; 622 623 struct fvmlib_command { 624 uint32_t cmd; 625 uint32_t cmdsize; 626 struct fvmlib fvmlib; 627 }; 628 629 struct dylib { 630 uint32_t name; 631 uint32_t timestamp; 632 uint32_t current_version; 633 uint32_t compatibility_version; 634 }; 635 636 struct dylib_command { 637 uint32_t cmd; 638 uint32_t cmdsize; 639 struct dylib dylib; 640 }; 641 642 struct sub_framework_command { 643 uint32_t cmd; 644 uint32_t cmdsize; 645 uint32_t umbrella; 646 }; 647 648 struct sub_client_command { 649 uint32_t cmd; 650 uint32_t cmdsize; 651 uint32_t client; 652 }; 653 654 struct sub_umbrella_command { 655 uint32_t cmd; 656 uint32_t cmdsize; 657 uint32_t sub_umbrella; 658 }; 659 660 struct sub_library_command { 661 uint32_t cmd; 662 uint32_t cmdsize; 663 uint32_t sub_library; 664 }; 665 666 struct prebound_dylib_command { 667 uint32_t cmd; 668 uint32_t cmdsize; 669 uint32_t name; 670 uint32_t nmodules; 671 uint32_t linked_modules; 672 }; 673 674 struct dylinker_command { 675 uint32_t cmd; 676 uint32_t cmdsize; 677 uint32_t name; 678 }; 679 680 struct thread_command { 681 uint32_t cmd; 682 uint32_t cmdsize; 683 }; 684 685 struct routines_command { 686 uint32_t cmd; 687 uint32_t cmdsize; 688 uint32_t init_address; 689 uint32_t init_module; 690 uint32_t reserved1; 691 uint32_t reserved2; 692 uint32_t reserved3; 693 uint32_t reserved4; 694 uint32_t reserved5; 695 uint32_t reserved6; 696 }; 697 698 struct routines_command_64 { 699 uint32_t cmd; 700 uint32_t cmdsize; 701 uint64_t init_address; 702 uint64_t init_module; 703 uint64_t reserved1; 704 uint64_t reserved2; 705 uint64_t reserved3; 706 uint64_t reserved4; 707 uint64_t reserved5; 708 uint64_t reserved6; 709 }; 710 711 struct symtab_command { 712 uint32_t cmd; 713 uint32_t cmdsize; 714 uint32_t symoff; 715 uint32_t nsyms; 716 uint32_t stroff; 717 uint32_t strsize; 718 }; 719 720 struct dysymtab_command { 721 uint32_t cmd; 722 uint32_t cmdsize; 723 uint32_t ilocalsym; 724 uint32_t nlocalsym; 725 uint32_t iextdefsym; 726 uint32_t nextdefsym; 727 uint32_t iundefsym; 728 uint32_t nundefsym; 729 uint32_t tocoff; 730 uint32_t ntoc; 731 uint32_t modtaboff; 732 uint32_t nmodtab; 733 uint32_t extrefsymoff; 734 uint32_t nextrefsyms; 735 uint32_t indirectsymoff; 736 uint32_t nindirectsyms; 737 uint32_t extreloff; 738 uint32_t nextrel; 739 uint32_t locreloff; 740 uint32_t nlocrel; 741 }; 742 743 struct dylib_table_of_contents { 744 uint32_t symbol_index; 745 uint32_t module_index; 746 }; 747 748 struct dylib_module { 749 uint32_t module_name; 750 uint32_t iextdefsym; 751 uint32_t nextdefsym; 752 uint32_t irefsym; 753 uint32_t nrefsym; 754 uint32_t ilocalsym; 755 uint32_t nlocalsym; 756 uint32_t iextrel; 757 uint32_t nextrel; 758 uint32_t iinit_iterm; 759 uint32_t ninit_nterm; 760 uint32_t objc_module_info_addr; 761 uint32_t objc_module_info_size; 762 }; 763 764 struct dylib_module_64 { 765 uint32_t module_name; 766 uint32_t iextdefsym; 767 uint32_t nextdefsym; 768 uint32_t irefsym; 769 uint32_t nrefsym; 770 uint32_t ilocalsym; 771 uint32_t nlocalsym; 772 uint32_t iextrel; 773 uint32_t nextrel; 774 uint32_t iinit_iterm; 775 uint32_t ninit_nterm; 776 uint32_t objc_module_info_size; 777 uint64_t objc_module_info_addr; 778 }; 779 780 struct dylib_reference { 781 uint32_t isym:24, 782 flags:8; 783 }; 784 785 struct twolevel_hints_command { 786 uint32_t cmd; 787 uint32_t cmdsize; 788 uint32_t offset; 789 uint32_t nhints; 790 }; 791 792 struct twolevel_hint { 793 uint32_t isub_image:8, 794 itoc:24; 795 }; 796 797 struct prebind_cksum_command { 798 uint32_t cmd; 799 uint32_t cmdsize; 800 uint32_t cksum; 801 }; 802 803 struct uuid_command { 804 uint32_t cmd; 805 uint32_t cmdsize; 806 uint8_t uuid[16]; 807 }; 808 809 struct rpath_command { 810 uint32_t cmd; 811 uint32_t cmdsize; 812 uint32_t path; 813 }; 814 815 struct linkedit_data_command { 816 uint32_t cmd; 817 uint32_t cmdsize; 818 uint32_t dataoff; 819 uint32_t datasize; 820 }; 821 822 struct data_in_code_entry { 823 uint32_t offset; 824 uint16_t length; 825 uint16_t kind; 826 }; 827 828 struct source_version_command { 829 uint32_t cmd; 830 uint32_t cmdsize; 831 uint64_t version; 832 }; 833 834 struct encryption_info_command { 835 uint32_t cmd; 836 uint32_t cmdsize; 837 uint32_t cryptoff; 838 uint32_t cryptsize; 839 uint32_t cryptid; 840 }; 841 842 struct encryption_info_command_64 { 843 uint32_t cmd; 844 uint32_t cmdsize; 845 uint32_t cryptoff; 846 uint32_t cryptsize; 847 uint32_t cryptid; 848 uint32_t pad; 849 }; 850 851 struct version_min_command { 852 uint32_t cmd; // LC_VERSION_MIN_MACOSX or 853 // LC_VERSION_MIN_IPHONEOS 854 uint32_t cmdsize; // sizeof(struct version_min_command) 855 uint32_t version; // X.Y.Z is encoded in nibbles xxxx.yy.zz 856 uint32_t sdk; // X.Y.Z is encoded in nibbles xxxx.yy.zz 857 }; 858 859 struct dyld_info_command { 860 uint32_t cmd; 861 uint32_t cmdsize; 862 uint32_t rebase_off; 863 uint32_t rebase_size; 864 uint32_t bind_off; 865 uint32_t bind_size; 866 uint32_t weak_bind_off; 867 uint32_t weak_bind_size; 868 uint32_t lazy_bind_off; 869 uint32_t lazy_bind_size; 870 uint32_t export_off; 871 uint32_t export_size; 872 }; 873 874 struct linker_option_command { 875 uint32_t cmd; 876 uint32_t cmdsize; 877 uint32_t count; 878 }; 879 880 struct symseg_command { 881 uint32_t cmd; 882 uint32_t cmdsize; 883 uint32_t offset; 884 uint32_t size; 885 }; 886 887 struct ident_command { 888 uint32_t cmd; 889 uint32_t cmdsize; 890 }; 891 892 struct fvmfile_command { 893 uint32_t cmd; 894 uint32_t cmdsize; 895 uint32_t name; 896 uint32_t header_addr; 897 }; 898 899 struct tlv_descriptor_32 { 900 uint32_t thunk; 901 uint32_t key; 902 uint32_t offset; 903 }; 904 905 struct tlv_descriptor_64 { 906 uint64_t thunk; 907 uint64_t key; 908 uint64_t offset; 909 }; 910 911 struct tlv_descriptor { 912 uintptr_t thunk; 913 uintptr_t key; 914 uintptr_t offset; 915 }; 916 917 struct entry_point_command { 918 uint32_t cmd; 919 uint32_t cmdsize; 920 uint64_t entryoff; 921 uint64_t stacksize; 922 }; 923 924 // Structs from <mach-o/fat.h> 925 struct fat_header { 926 uint32_t magic; 927 uint32_t nfat_arch; 928 }; 929 930 struct fat_arch { 931 uint32_t cputype; 932 uint32_t cpusubtype; 933 uint32_t offset; 934 uint32_t size; 935 uint32_t align; 936 }; 937 938 // Structs from <mach-o/reloc.h> 939 struct relocation_info { 940 int32_t r_address; 941 uint32_t r_symbolnum:24, 942 r_pcrel:1, 943 r_length:2, 944 r_extern:1, 945 r_type:4; 946 }; 947 948 struct scattered_relocation_info { 949#if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && (BYTE_ORDER == BIG_ENDIAN) 950 uint32_t r_scattered:1, 951 r_pcrel:1, 952 r_length:2, 953 r_type:4, 954 r_address:24; 955#else 956 uint32_t r_address:24, 957 r_type:4, 958 r_length:2, 959 r_pcrel:1, 960 r_scattered:1; 961#endif 962 int32_t r_value; 963 }; 964 965 // Structs NOT from <mach-o/reloc.h>, but that make LLVM's life easier 966 struct any_relocation_info { 967 uint32_t r_word0, r_word1; 968 }; 969 970 // Structs from <mach-o/nlist.h> 971 struct nlist_base { 972 uint32_t n_strx; 973 uint8_t n_type; 974 uint8_t n_sect; 975 uint16_t n_desc; 976 }; 977 978 struct nlist { 979 uint32_t n_strx; 980 uint8_t n_type; 981 uint8_t n_sect; 982 int16_t n_desc; 983 uint32_t n_value; 984 }; 985 986 struct nlist_64 { 987 uint32_t n_strx; 988 uint8_t n_type; 989 uint8_t n_sect; 990 uint16_t n_desc; 991 uint64_t n_value; 992 }; 993 994 // Byte order swapping functions for MachO structs 995 996 inline void swapStruct(mach_header &mh) { 997 sys::swapByteOrder(mh.magic); 998 sys::swapByteOrder(mh.cputype); 999 sys::swapByteOrder(mh.cpusubtype); 1000 sys::swapByteOrder(mh.filetype); 1001 sys::swapByteOrder(mh.ncmds); 1002 sys::swapByteOrder(mh.sizeofcmds); 1003 sys::swapByteOrder(mh.flags); 1004 } 1005 1006 inline void swapStruct(mach_header_64 &H) { 1007 sys::swapByteOrder(H.magic); 1008 sys::swapByteOrder(H.cputype); 1009 sys::swapByteOrder(H.cpusubtype); 1010 sys::swapByteOrder(H.filetype); 1011 sys::swapByteOrder(H.ncmds); 1012 sys::swapByteOrder(H.sizeofcmds); 1013 sys::swapByteOrder(H.flags); 1014 sys::swapByteOrder(H.reserved); 1015 } 1016 1017 inline void swapStruct(load_command &lc) { 1018 sys::swapByteOrder(lc.cmd); 1019 sys::swapByteOrder(lc.cmdsize); 1020 } 1021 1022 inline void swapStruct(symtab_command &lc) { 1023 sys::swapByteOrder(lc.cmd); 1024 sys::swapByteOrder(lc.cmdsize); 1025 sys::swapByteOrder(lc.symoff); 1026 sys::swapByteOrder(lc.nsyms); 1027 sys::swapByteOrder(lc.stroff); 1028 sys::swapByteOrder(lc.strsize); 1029 } 1030 1031 inline void swapStruct(segment_command_64 &seg) { 1032 sys::swapByteOrder(seg.cmd); 1033 sys::swapByteOrder(seg.cmdsize); 1034 sys::swapByteOrder(seg.vmaddr); 1035 sys::swapByteOrder(seg.vmsize); 1036 sys::swapByteOrder(seg.fileoff); 1037 sys::swapByteOrder(seg.filesize); 1038 sys::swapByteOrder(seg.maxprot); 1039 sys::swapByteOrder(seg.initprot); 1040 sys::swapByteOrder(seg.nsects); 1041 sys::swapByteOrder(seg.flags); 1042 } 1043 1044 inline void swapStruct(segment_command &seg) { 1045 sys::swapByteOrder(seg.cmd); 1046 sys::swapByteOrder(seg.cmdsize); 1047 sys::swapByteOrder(seg.vmaddr); 1048 sys::swapByteOrder(seg.vmsize); 1049 sys::swapByteOrder(seg.fileoff); 1050 sys::swapByteOrder(seg.filesize); 1051 sys::swapByteOrder(seg.maxprot); 1052 sys::swapByteOrder(seg.initprot); 1053 sys::swapByteOrder(seg.nsects); 1054 sys::swapByteOrder(seg.flags); 1055 } 1056 1057 inline void swapStruct(section_64 §) { 1058 sys::swapByteOrder(sect.addr); 1059 sys::swapByteOrder(sect.size); 1060 sys::swapByteOrder(sect.offset); 1061 sys::swapByteOrder(sect.align); 1062 sys::swapByteOrder(sect.reloff); 1063 sys::swapByteOrder(sect.nreloc); 1064 sys::swapByteOrder(sect.flags); 1065 sys::swapByteOrder(sect.reserved1); 1066 sys::swapByteOrder(sect.reserved2); 1067 } 1068 1069 inline void swapStruct(section §) { 1070 sys::swapByteOrder(sect.addr); 1071 sys::swapByteOrder(sect.size); 1072 sys::swapByteOrder(sect.offset); 1073 sys::swapByteOrder(sect.align); 1074 sys::swapByteOrder(sect.reloff); 1075 sys::swapByteOrder(sect.nreloc); 1076 sys::swapByteOrder(sect.flags); 1077 sys::swapByteOrder(sect.reserved1); 1078 sys::swapByteOrder(sect.reserved2); 1079 } 1080 1081 inline void swapStruct(dyld_info_command &info) { 1082 sys::swapByteOrder(info.cmd); 1083 sys::swapByteOrder(info.cmdsize); 1084 sys::swapByteOrder(info.rebase_off); 1085 sys::swapByteOrder(info.rebase_size); 1086 sys::swapByteOrder(info.bind_off); 1087 sys::swapByteOrder(info.bind_size); 1088 sys::swapByteOrder(info.weak_bind_off); 1089 sys::swapByteOrder(info.weak_bind_size); 1090 sys::swapByteOrder(info.lazy_bind_off); 1091 sys::swapByteOrder(info.lazy_bind_size); 1092 sys::swapByteOrder(info.export_off); 1093 sys::swapByteOrder(info.export_size); 1094 } 1095 1096 inline void swapStruct(dylib_command &d) { 1097 sys::swapByteOrder(d.cmd); 1098 sys::swapByteOrder(d.cmdsize); 1099 sys::swapByteOrder(d.dylib.name); 1100 sys::swapByteOrder(d.dylib.timestamp); 1101 sys::swapByteOrder(d.dylib.current_version); 1102 sys::swapByteOrder(d.dylib.compatibility_version); 1103 } 1104 1105 inline void swapStruct(sub_framework_command &s) { 1106 sys::swapByteOrder(s.cmd); 1107 sys::swapByteOrder(s.cmdsize); 1108 sys::swapByteOrder(s.umbrella); 1109 } 1110 1111 inline void swapStruct(sub_umbrella_command &s) { 1112 sys::swapByteOrder(s.cmd); 1113 sys::swapByteOrder(s.cmdsize); 1114 sys::swapByteOrder(s.sub_umbrella); 1115 } 1116 1117 inline void swapStruct(sub_library_command &s) { 1118 sys::swapByteOrder(s.cmd); 1119 sys::swapByteOrder(s.cmdsize); 1120 sys::swapByteOrder(s.sub_library); 1121 } 1122 1123 inline void swapStruct(sub_client_command &s) { 1124 sys::swapByteOrder(s.cmd); 1125 sys::swapByteOrder(s.cmdsize); 1126 sys::swapByteOrder(s.client); 1127 } 1128 1129 inline void swapStruct(routines_command &r) { 1130 sys::swapByteOrder(r.cmd); 1131 sys::swapByteOrder(r.cmdsize); 1132 sys::swapByteOrder(r.init_address); 1133 sys::swapByteOrder(r.init_module); 1134 sys::swapByteOrder(r.reserved1); 1135 sys::swapByteOrder(r.reserved2); 1136 sys::swapByteOrder(r.reserved3); 1137 sys::swapByteOrder(r.reserved4); 1138 sys::swapByteOrder(r.reserved5); 1139 sys::swapByteOrder(r.reserved6); 1140 } 1141 1142 inline void swapStruct(routines_command_64 &r) { 1143 sys::swapByteOrder(r.cmd); 1144 sys::swapByteOrder(r.cmdsize); 1145 sys::swapByteOrder(r.init_address); 1146 sys::swapByteOrder(r.init_module); 1147 sys::swapByteOrder(r.reserved1); 1148 sys::swapByteOrder(r.reserved2); 1149 sys::swapByteOrder(r.reserved3); 1150 sys::swapByteOrder(r.reserved4); 1151 sys::swapByteOrder(r.reserved5); 1152 sys::swapByteOrder(r.reserved6); 1153 } 1154 1155 inline void swapStruct(thread_command &t) { 1156 sys::swapByteOrder(t.cmd); 1157 sys::swapByteOrder(t.cmdsize); 1158 } 1159 1160 inline void swapStruct(dylinker_command &d) { 1161 sys::swapByteOrder(d.cmd); 1162 sys::swapByteOrder(d.cmdsize); 1163 sys::swapByteOrder(d.name); 1164 } 1165 1166 inline void swapStruct(uuid_command &u) { 1167 sys::swapByteOrder(u.cmd); 1168 sys::swapByteOrder(u.cmdsize); 1169 } 1170 1171 inline void swapStruct(rpath_command &r) { 1172 sys::swapByteOrder(r.cmd); 1173 sys::swapByteOrder(r.cmdsize); 1174 sys::swapByteOrder(r.path); 1175 } 1176 1177 inline void swapStruct(source_version_command &s) { 1178 sys::swapByteOrder(s.cmd); 1179 sys::swapByteOrder(s.cmdsize); 1180 sys::swapByteOrder(s.version); 1181 } 1182 1183 inline void swapStruct(entry_point_command &e) { 1184 sys::swapByteOrder(e.cmd); 1185 sys::swapByteOrder(e.cmdsize); 1186 sys::swapByteOrder(e.entryoff); 1187 sys::swapByteOrder(e.stacksize); 1188 } 1189 1190 inline void swapStruct(encryption_info_command &e) { 1191 sys::swapByteOrder(e.cmd); 1192 sys::swapByteOrder(e.cmdsize); 1193 sys::swapByteOrder(e.cryptoff); 1194 sys::swapByteOrder(e.cryptsize); 1195 sys::swapByteOrder(e.cryptid); 1196 } 1197 1198 inline void swapStruct(encryption_info_command_64 &e) { 1199 sys::swapByteOrder(e.cmd); 1200 sys::swapByteOrder(e.cmdsize); 1201 sys::swapByteOrder(e.cryptoff); 1202 sys::swapByteOrder(e.cryptsize); 1203 sys::swapByteOrder(e.cryptid); 1204 sys::swapByteOrder(e.pad); 1205 } 1206 1207 inline void swapStruct(dysymtab_command &dst) { 1208 sys::swapByteOrder(dst.cmd); 1209 sys::swapByteOrder(dst.cmdsize); 1210 sys::swapByteOrder(dst.ilocalsym); 1211 sys::swapByteOrder(dst.nlocalsym); 1212 sys::swapByteOrder(dst.iextdefsym); 1213 sys::swapByteOrder(dst.nextdefsym); 1214 sys::swapByteOrder(dst.iundefsym); 1215 sys::swapByteOrder(dst.nundefsym); 1216 sys::swapByteOrder(dst.tocoff); 1217 sys::swapByteOrder(dst.ntoc); 1218 sys::swapByteOrder(dst.modtaboff); 1219 sys::swapByteOrder(dst.nmodtab); 1220 sys::swapByteOrder(dst.extrefsymoff); 1221 sys::swapByteOrder(dst.nextrefsyms); 1222 sys::swapByteOrder(dst.indirectsymoff); 1223 sys::swapByteOrder(dst.nindirectsyms); 1224 sys::swapByteOrder(dst.extreloff); 1225 sys::swapByteOrder(dst.nextrel); 1226 sys::swapByteOrder(dst.locreloff); 1227 sys::swapByteOrder(dst.nlocrel); 1228 } 1229 1230 inline void swapStruct(any_relocation_info &reloc) { 1231 sys::swapByteOrder(reloc.r_word0); 1232 sys::swapByteOrder(reloc.r_word1); 1233 } 1234 1235 inline void swapStruct(nlist_base &S) { 1236 sys::swapByteOrder(S.n_strx); 1237 sys::swapByteOrder(S.n_desc); 1238 } 1239 1240 inline void swapStruct(nlist &sym) { 1241 sys::swapByteOrder(sym.n_strx); 1242 sys::swapByteOrder(sym.n_desc); 1243 sys::swapByteOrder(sym.n_value); 1244 } 1245 1246 inline void swapStruct(nlist_64 &sym) { 1247 sys::swapByteOrder(sym.n_strx); 1248 sys::swapByteOrder(sym.n_desc); 1249 sys::swapByteOrder(sym.n_value); 1250 } 1251 1252 inline void swapStruct(linkedit_data_command &C) { 1253 sys::swapByteOrder(C.cmd); 1254 sys::swapByteOrder(C.cmdsize); 1255 sys::swapByteOrder(C.dataoff); 1256 sys::swapByteOrder(C.datasize); 1257 } 1258 1259 inline void swapStruct(linker_option_command &C) { 1260 sys::swapByteOrder(C.cmd); 1261 sys::swapByteOrder(C.cmdsize); 1262 sys::swapByteOrder(C.count); 1263 } 1264 1265 inline void swapStruct(version_min_command&C) { 1266 sys::swapByteOrder(C.cmd); 1267 sys::swapByteOrder(C.cmdsize); 1268 sys::swapByteOrder(C.version); 1269 sys::swapByteOrder(C.sdk); 1270 } 1271 1272 inline void swapStruct(data_in_code_entry &C) { 1273 sys::swapByteOrder(C.offset); 1274 sys::swapByteOrder(C.length); 1275 sys::swapByteOrder(C.kind); 1276 } 1277 1278 inline void swapStruct(uint32_t &C) { 1279 sys::swapByteOrder(C); 1280 } 1281 1282 // Get/Set functions from <mach-o/nlist.h> 1283 1284 static inline uint16_t GET_LIBRARY_ORDINAL(uint16_t n_desc) { 1285 return (((n_desc) >> 8u) & 0xffu); 1286 } 1287 1288 static inline void SET_LIBRARY_ORDINAL(uint16_t &n_desc, uint8_t ordinal) { 1289 n_desc = (((n_desc) & 0x00ff) | (((ordinal) & 0xff) << 8)); 1290 } 1291 1292 static inline uint8_t GET_COMM_ALIGN (uint16_t n_desc) { 1293 return (n_desc >> 8u) & 0x0fu; 1294 } 1295 1296 static inline void SET_COMM_ALIGN (uint16_t &n_desc, uint8_t align) { 1297 n_desc = ((n_desc & 0xf0ffu) | ((align & 0x0fu) << 8u)); 1298 } 1299 1300 // Enums from <mach/machine.h> 1301 enum : uint32_t { 1302 // Capability bits used in the definition of cpu_type. 1303 CPU_ARCH_MASK = 0xff000000, // Mask for architecture bits 1304 CPU_ARCH_ABI64 = 0x01000000 // 64 bit ABI 1305 }; 1306 1307 // Constants for the cputype field. 1308 enum CPUType { 1309 CPU_TYPE_ANY = -1, 1310 CPU_TYPE_X86 = 7, 1311 CPU_TYPE_I386 = CPU_TYPE_X86, 1312 CPU_TYPE_X86_64 = CPU_TYPE_X86 | CPU_ARCH_ABI64, 1313 /* CPU_TYPE_MIPS = 8, */ 1314 CPU_TYPE_MC98000 = 10, // Old Motorola PowerPC 1315 CPU_TYPE_ARM = 12, 1316 CPU_TYPE_ARM64 = CPU_TYPE_ARM | CPU_ARCH_ABI64, 1317 CPU_TYPE_SPARC = 14, 1318 CPU_TYPE_POWERPC = 18, 1319 CPU_TYPE_POWERPC64 = CPU_TYPE_POWERPC | CPU_ARCH_ABI64 1320 }; 1321 1322 enum : uint32_t { 1323 // Capability bits used in the definition of cpusubtype. 1324 CPU_SUBTYPE_MASK = 0xff000000, // Mask for architecture bits 1325 CPU_SUBTYPE_LIB64 = 0x80000000, // 64 bit libraries 1326 1327 // Special CPU subtype constants. 1328 CPU_SUBTYPE_MULTIPLE = ~0u 1329 }; 1330 1331 // Constants for the cpusubtype field. 1332 enum CPUSubTypeX86 { 1333 CPU_SUBTYPE_I386_ALL = 3, 1334 CPU_SUBTYPE_386 = 3, 1335 CPU_SUBTYPE_486 = 4, 1336 CPU_SUBTYPE_486SX = 0x84, 1337 CPU_SUBTYPE_586 = 5, 1338 CPU_SUBTYPE_PENT = CPU_SUBTYPE_586, 1339 CPU_SUBTYPE_PENTPRO = 0x16, 1340 CPU_SUBTYPE_PENTII_M3 = 0x36, 1341 CPU_SUBTYPE_PENTII_M5 = 0x56, 1342 CPU_SUBTYPE_CELERON = 0x67, 1343 CPU_SUBTYPE_CELERON_MOBILE = 0x77, 1344 CPU_SUBTYPE_PENTIUM_3 = 0x08, 1345 CPU_SUBTYPE_PENTIUM_3_M = 0x18, 1346 CPU_SUBTYPE_PENTIUM_3_XEON = 0x28, 1347 CPU_SUBTYPE_PENTIUM_M = 0x09, 1348 CPU_SUBTYPE_PENTIUM_4 = 0x0a, 1349 CPU_SUBTYPE_PENTIUM_4_M = 0x1a, 1350 CPU_SUBTYPE_ITANIUM = 0x0b, 1351 CPU_SUBTYPE_ITANIUM_2 = 0x1b, 1352 CPU_SUBTYPE_XEON = 0x0c, 1353 CPU_SUBTYPE_XEON_MP = 0x1c, 1354 1355 CPU_SUBTYPE_X86_ALL = 3, 1356 CPU_SUBTYPE_X86_64_ALL = 3, 1357 CPU_SUBTYPE_X86_ARCH1 = 4, 1358 CPU_SUBTYPE_X86_64_H = 8 1359 }; 1360 static inline int CPU_SUBTYPE_INTEL(int Family, int Model) { 1361 return Family | (Model << 4); 1362 } 1363 static inline int CPU_SUBTYPE_INTEL_FAMILY(CPUSubTypeX86 ST) { 1364 return ((int)ST) & 0x0f; 1365 } 1366 static inline int CPU_SUBTYPE_INTEL_MODEL(CPUSubTypeX86 ST) { 1367 return ((int)ST) >> 4; 1368 } 1369 enum { 1370 CPU_SUBTYPE_INTEL_FAMILY_MAX = 15, 1371 CPU_SUBTYPE_INTEL_MODEL_ALL = 0 1372 }; 1373 1374 enum CPUSubTypeARM { 1375 CPU_SUBTYPE_ARM_ALL = 0, 1376 CPU_SUBTYPE_ARM_V4T = 5, 1377 CPU_SUBTYPE_ARM_V6 = 6, 1378 CPU_SUBTYPE_ARM_V5 = 7, 1379 CPU_SUBTYPE_ARM_V5TEJ = 7, 1380 CPU_SUBTYPE_ARM_XSCALE = 8, 1381 CPU_SUBTYPE_ARM_V7 = 9, 1382 // unused ARM_V7F = 10, 1383 CPU_SUBTYPE_ARM_V7S = 11, 1384 CPU_SUBTYPE_ARM_V7K = 12, 1385 CPU_SUBTYPE_ARM_V6M = 14, 1386 CPU_SUBTYPE_ARM_V7M = 15, 1387 CPU_SUBTYPE_ARM_V7EM = 16 1388 }; 1389 1390 enum CPUSubTypeARM64 { 1391 CPU_SUBTYPE_ARM64_ALL = 0 1392 }; 1393 1394 enum CPUSubTypeSPARC { 1395 CPU_SUBTYPE_SPARC_ALL = 0 1396 }; 1397 1398 enum CPUSubTypePowerPC { 1399 CPU_SUBTYPE_POWERPC_ALL = 0, 1400 CPU_SUBTYPE_POWERPC_601 = 1, 1401 CPU_SUBTYPE_POWERPC_602 = 2, 1402 CPU_SUBTYPE_POWERPC_603 = 3, 1403 CPU_SUBTYPE_POWERPC_603e = 4, 1404 CPU_SUBTYPE_POWERPC_603ev = 5, 1405 CPU_SUBTYPE_POWERPC_604 = 6, 1406 CPU_SUBTYPE_POWERPC_604e = 7, 1407 CPU_SUBTYPE_POWERPC_620 = 8, 1408 CPU_SUBTYPE_POWERPC_750 = 9, 1409 CPU_SUBTYPE_POWERPC_7400 = 10, 1410 CPU_SUBTYPE_POWERPC_7450 = 11, 1411 CPU_SUBTYPE_POWERPC_970 = 100, 1412 1413 CPU_SUBTYPE_MC980000_ALL = CPU_SUBTYPE_POWERPC_ALL, 1414 CPU_SUBTYPE_MC98601 = CPU_SUBTYPE_POWERPC_601 1415 }; 1416 1417 struct x86_thread_state64_t { 1418 uint64_t rax; 1419 uint64_t rbx; 1420 uint64_t rcx; 1421 uint64_t rdx; 1422 uint64_t rdi; 1423 uint64_t rsi; 1424 uint64_t rbp; 1425 uint64_t rsp; 1426 uint64_t r8; 1427 uint64_t r9; 1428 uint64_t r10; 1429 uint64_t r11; 1430 uint64_t r12; 1431 uint64_t r13; 1432 uint64_t r14; 1433 uint64_t r15; 1434 uint64_t rip; 1435 uint64_t rflags; 1436 uint64_t cs; 1437 uint64_t fs; 1438 uint64_t gs; 1439 }; 1440 1441 enum x86_fp_control_precis { 1442 x86_FP_PREC_24B = 0, 1443 x86_FP_PREC_53B = 2, 1444 x86_FP_PREC_64B = 3 1445 }; 1446 1447 enum x86_fp_control_rc { 1448 x86_FP_RND_NEAR = 0, 1449 x86_FP_RND_DOWN = 1, 1450 x86_FP_RND_UP = 2, 1451 x86_FP_CHOP = 3 1452 }; 1453 1454 struct fp_control_t { 1455 unsigned short 1456 invalid :1, 1457 denorm :1, 1458 zdiv :1, 1459 ovrfl :1, 1460 undfl :1, 1461 precis :1, 1462 :2, 1463 pc :2, 1464 rc :2, 1465 :1, 1466 :3; 1467 }; 1468 1469 struct fp_status_t { 1470 unsigned short 1471 invalid :1, 1472 denorm :1, 1473 zdiv :1, 1474 ovrfl :1, 1475 undfl :1, 1476 precis :1, 1477 stkflt :1, 1478 errsumm :1, 1479 c0 :1, 1480 c1 :1, 1481 c2 :1, 1482 tos :3, 1483 c3 :1, 1484 busy :1; 1485 }; 1486 1487 struct mmst_reg_t { 1488 char mmst_reg[10]; 1489 char mmst_rsrv[6]; 1490 }; 1491 1492 struct xmm_reg_t { 1493 char xmm_reg[16]; 1494 }; 1495 1496 struct x86_float_state64_t { 1497 int32_t fpu_reserved[2]; 1498 fp_control_t fpu_fcw; 1499 fp_status_t fpu_fsw; 1500 uint8_t fpu_ftw; 1501 uint8_t fpu_rsrv1; 1502 uint16_t fpu_fop; 1503 uint32_t fpu_ip; 1504 uint16_t fpu_cs; 1505 uint16_t fpu_rsrv2; 1506 uint32_t fpu_dp; 1507 uint16_t fpu_ds; 1508 uint16_t fpu_rsrv3; 1509 uint32_t fpu_mxcsr; 1510 uint32_t fpu_mxcsrmask; 1511 mmst_reg_t fpu_stmm0; 1512 mmst_reg_t fpu_stmm1; 1513 mmst_reg_t fpu_stmm2; 1514 mmst_reg_t fpu_stmm3; 1515 mmst_reg_t fpu_stmm4; 1516 mmst_reg_t fpu_stmm5; 1517 mmst_reg_t fpu_stmm6; 1518 mmst_reg_t fpu_stmm7; 1519 xmm_reg_t fpu_xmm0; 1520 xmm_reg_t fpu_xmm1; 1521 xmm_reg_t fpu_xmm2; 1522 xmm_reg_t fpu_xmm3; 1523 xmm_reg_t fpu_xmm4; 1524 xmm_reg_t fpu_xmm5; 1525 xmm_reg_t fpu_xmm6; 1526 xmm_reg_t fpu_xmm7; 1527 xmm_reg_t fpu_xmm8; 1528 xmm_reg_t fpu_xmm9; 1529 xmm_reg_t fpu_xmm10; 1530 xmm_reg_t fpu_xmm11; 1531 xmm_reg_t fpu_xmm12; 1532 xmm_reg_t fpu_xmm13; 1533 xmm_reg_t fpu_xmm14; 1534 xmm_reg_t fpu_xmm15; 1535 char fpu_rsrv4[6*16]; 1536 uint32_t fpu_reserved1; 1537 }; 1538 1539 struct x86_exception_state64_t { 1540 uint16_t trapno; 1541 uint16_t cpu; 1542 uint32_t err; 1543 uint64_t faultvaddr; 1544 }; 1545 1546 inline void swapStruct(x86_thread_state64_t &x) { 1547 sys::swapByteOrder(x.rax); 1548 sys::swapByteOrder(x.rbx); 1549 sys::swapByteOrder(x.rcx); 1550 sys::swapByteOrder(x.rdx); 1551 sys::swapByteOrder(x.rdi); 1552 sys::swapByteOrder(x.rsi); 1553 sys::swapByteOrder(x.rbp); 1554 sys::swapByteOrder(x.rsp); 1555 sys::swapByteOrder(x.r8); 1556 sys::swapByteOrder(x.r9); 1557 sys::swapByteOrder(x.r10); 1558 sys::swapByteOrder(x.r11); 1559 sys::swapByteOrder(x.r12); 1560 sys::swapByteOrder(x.r13); 1561 sys::swapByteOrder(x.r14); 1562 sys::swapByteOrder(x.r15); 1563 sys::swapByteOrder(x.rip); 1564 sys::swapByteOrder(x.rflags); 1565 sys::swapByteOrder(x.cs); 1566 sys::swapByteOrder(x.fs); 1567 sys::swapByteOrder(x.gs); 1568 } 1569 1570 inline void swapStruct(x86_float_state64_t &x) { 1571 sys::swapByteOrder(x.fpu_reserved[0]); 1572 sys::swapByteOrder(x.fpu_reserved[1]); 1573 // TODO swap: fp_control_t fpu_fcw; 1574 // TODO swap: fp_status_t fpu_fsw; 1575 sys::swapByteOrder(x.fpu_fop); 1576 sys::swapByteOrder(x.fpu_ip); 1577 sys::swapByteOrder(x.fpu_cs); 1578 sys::swapByteOrder(x.fpu_rsrv2); 1579 sys::swapByteOrder(x.fpu_dp); 1580 sys::swapByteOrder(x.fpu_ds); 1581 sys::swapByteOrder(x.fpu_rsrv3); 1582 sys::swapByteOrder(x.fpu_mxcsr); 1583 sys::swapByteOrder(x.fpu_mxcsrmask); 1584 sys::swapByteOrder(x.fpu_reserved1); 1585 } 1586 1587 inline void swapStruct(x86_exception_state64_t &x) { 1588 sys::swapByteOrder(x.trapno); 1589 sys::swapByteOrder(x.cpu); 1590 sys::swapByteOrder(x.err); 1591 sys::swapByteOrder(x.faultvaddr); 1592 } 1593 1594 struct x86_state_hdr_t { 1595 uint32_t flavor; 1596 uint32_t count; 1597 }; 1598 1599 struct x86_thread_state_t { 1600 x86_state_hdr_t tsh; 1601 union { 1602 x86_thread_state64_t ts64; 1603 } uts; 1604 }; 1605 1606 struct x86_float_state_t { 1607 x86_state_hdr_t fsh; 1608 union { 1609 x86_float_state64_t fs64; 1610 } ufs; 1611 }; 1612 1613 struct x86_exception_state_t { 1614 x86_state_hdr_t esh; 1615 union { 1616 x86_exception_state64_t es64; 1617 } ues; 1618 }; 1619 1620 inline void swapStruct(x86_state_hdr_t &x) { 1621 sys::swapByteOrder(x.flavor); 1622 sys::swapByteOrder(x.count); 1623 } 1624 1625 enum X86ThreadFlavors { 1626 x86_THREAD_STATE32 = 1, 1627 x86_FLOAT_STATE32 = 2, 1628 x86_EXCEPTION_STATE32 = 3, 1629 x86_THREAD_STATE64 = 4, 1630 x86_FLOAT_STATE64 = 5, 1631 x86_EXCEPTION_STATE64 = 6, 1632 x86_THREAD_STATE = 7, 1633 x86_FLOAT_STATE = 8, 1634 x86_EXCEPTION_STATE = 9, 1635 x86_DEBUG_STATE32 = 10, 1636 x86_DEBUG_STATE64 = 11, 1637 x86_DEBUG_STATE = 12 1638 }; 1639 1640 inline void swapStruct(x86_thread_state_t &x) { 1641 swapStruct(x.tsh); 1642 if (x.tsh.flavor == x86_THREAD_STATE64) 1643 swapStruct(x.uts.ts64); 1644 } 1645 1646 inline void swapStruct(x86_float_state_t &x) { 1647 swapStruct(x.fsh); 1648 if (x.fsh.flavor == x86_FLOAT_STATE64) 1649 swapStruct(x.ufs.fs64); 1650 } 1651 1652 inline void swapStruct(x86_exception_state_t &x) { 1653 swapStruct(x.esh); 1654 if (x.esh.flavor == x86_EXCEPTION_STATE64) 1655 swapStruct(x.ues.es64); 1656 } 1657 1658 const uint32_t x86_THREAD_STATE64_COUNT = 1659 sizeof(x86_thread_state64_t) / sizeof(uint32_t); 1660 const uint32_t x86_FLOAT_STATE64_COUNT = 1661 sizeof(x86_float_state64_t) / sizeof(uint32_t); 1662 const uint32_t x86_EXCEPTION_STATE64_COUNT = 1663 sizeof(x86_exception_state64_t) / sizeof(uint32_t); 1664 1665 const uint32_t x86_THREAD_STATE_COUNT = 1666 sizeof(x86_thread_state_t) / sizeof(uint32_t); 1667 const uint32_t x86_FLOAT_STATE_COUNT = 1668 sizeof(x86_float_state_t) / sizeof(uint32_t); 1669 const uint32_t x86_EXCEPTION_STATE_COUNT = 1670 sizeof(x86_exception_state_t) / sizeof(uint32_t); 1671 1672 } // end namespace MachO 1673} // end namespace llvm 1674 1675#endif 1676