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