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