1 //===- MachOYAML.cpp - MachO YAMLIO implementation ------------------------===//
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 classes for handling the YAML representation of MachO.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #include "llvm/ObjectYAML/MachOYAML.h"
15 #include "llvm/BinaryFormat/MachO.h"
16 #include "llvm/Support/Casting.h"
17 #include "llvm/Support/Format.h"
18 #include "llvm/Support/Host.h"
19 
20 #include <string.h> // For memcpy, memset and strnlen.
21 
22 namespace llvm {
23 
24 MachOYAML::LoadCommand::~LoadCommand() {}
25 
26 bool MachOYAML::LinkEditData::isEmpty() const {
27   return 0 ==
28          RebaseOpcodes.size() + BindOpcodes.size() + WeakBindOpcodes.size() +
29              LazyBindOpcodes.size() + ExportTrie.Children.size() +
30              NameList.size() + StringTable.size();
31 }
32 
33 namespace yaml {
34 
35 void ScalarTraits<char_16>::output(const char_16 &Val, void *,
36                                    llvm::raw_ostream &Out) {
37   auto Len = strnlen(&Val[0], 16);
38   Out << StringRef(&Val[0], Len);
39 }
40 
41 StringRef ScalarTraits<char_16>::input(StringRef Scalar, void *, char_16 &Val) {
42   size_t CopySize = 16 >= Scalar.size() ? 16 : Scalar.size();
43   memcpy((void *)Val, Scalar.data(), CopySize);
44 
45   if (Scalar.size() < 16) {
46     memset((void *)&Val[Scalar.size()], 0, 16 - Scalar.size());
47   }
48 
49   return StringRef();
50 }
51 
52 bool ScalarTraits<char_16>::mustQuote(StringRef S) { return needsQuotes(S); }
53 
54 void ScalarTraits<uuid_t>::output(const uuid_t &Val, void *,
55                                   llvm::raw_ostream &Out) {
56   for (int Idx = 0; Idx < 16; ++Idx) {
57     Out << format("%02" PRIX32, Val[Idx]);
58     if (Idx == 3 || Idx == 5 || Idx == 7 || Idx == 9)
59       Out << "-";
60   }
61 }
62 
63 StringRef ScalarTraits<uuid_t>::input(StringRef Scalar, void *, uuid_t &Val) {
64   size_t OutIdx = 0;
65   for (size_t Idx = 0; Idx < Scalar.size(); ++Idx) {
66     if (Scalar[Idx] == '-' || OutIdx >= 16)
67       continue;
68     unsigned long long TempInt;
69     if (getAsUnsignedInteger(Scalar.slice(Idx, Idx + 2), 16, TempInt))
70       return "invalid number";
71     if (TempInt > 0xFF)
72       return "out of range number";
73     Val[OutIdx] = static_cast<uint8_t>(TempInt);
74     ++Idx; // increment idx an extra time because we're consuming 2 chars
75     ++OutIdx;
76   }
77   return StringRef();
78 }
79 
80 bool ScalarTraits<uuid_t>::mustQuote(StringRef S) { return needsQuotes(S); }
81 
82 void MappingTraits<MachOYAML::FileHeader>::mapping(
83     IO &IO, MachOYAML::FileHeader &FileHdr) {
84   IO.mapRequired("magic", FileHdr.magic);
85   IO.mapRequired("cputype", FileHdr.cputype);
86   IO.mapRequired("cpusubtype", FileHdr.cpusubtype);
87   IO.mapRequired("filetype", FileHdr.filetype);
88   IO.mapRequired("ncmds", FileHdr.ncmds);
89   IO.mapRequired("sizeofcmds", FileHdr.sizeofcmds);
90   IO.mapRequired("flags", FileHdr.flags);
91   if (FileHdr.magic == MachO::MH_MAGIC_64 ||
92       FileHdr.magic == MachO::MH_CIGAM_64)
93     IO.mapRequired("reserved", FileHdr.reserved);
94 }
95 
96 void MappingTraits<MachOYAML::Object>::mapping(IO &IO,
97                                                MachOYAML::Object &Object) {
98   // If the context isn't already set, tag the document as !mach-o.
99   // For Fat files there will be a different tag so they can be differentiated.
100   if (!IO.getContext()) {
101     IO.setContext(&Object);
102   }
103   IO.mapTag("!mach-o", true);
104   IO.mapOptional("IsLittleEndian", Object.IsLittleEndian,
105                  sys::IsLittleEndianHost);
106   Object.DWARF.IsLittleEndian = Object.IsLittleEndian;
107 
108   IO.mapRequired("FileHeader", Object.Header);
109   IO.mapOptional("LoadCommands", Object.LoadCommands);
110   if(!Object.LinkEdit.isEmpty() || !IO.outputting())
111     IO.mapOptional("LinkEditData", Object.LinkEdit);
112 
113   if(!Object.DWARF.isEmpty() || !IO.outputting())
114     IO.mapOptional("DWARF", Object.DWARF);
115 
116   if (IO.getContext() == &Object)
117     IO.setContext(nullptr);
118 }
119 
120 void MappingTraits<MachOYAML::FatHeader>::mapping(
121     IO &IO, MachOYAML::FatHeader &FatHeader) {
122   IO.mapRequired("magic", FatHeader.magic);
123   IO.mapRequired("nfat_arch", FatHeader.nfat_arch);
124 }
125 
126 void MappingTraits<MachOYAML::FatArch>::mapping(IO &IO,
127                                                 MachOYAML::FatArch &FatArch) {
128   IO.mapRequired("cputype", FatArch.cputype);
129   IO.mapRequired("cpusubtype", FatArch.cpusubtype);
130   IO.mapRequired("offset", FatArch.offset);
131   IO.mapRequired("size", FatArch.size);
132   IO.mapRequired("align", FatArch.align);
133   IO.mapOptional("reserved", FatArch.reserved,
134                  static_cast<llvm::yaml::Hex32>(0));
135 }
136 
137 void MappingTraits<MachOYAML::UniversalBinary>::mapping(
138     IO &IO, MachOYAML::UniversalBinary &UniversalBinary) {
139   if (!IO.getContext()) {
140     IO.setContext(&UniversalBinary);
141     IO.mapTag("!fat-mach-o", true);
142   }
143   IO.mapRequired("FatHeader", UniversalBinary.Header);
144   IO.mapRequired("FatArchs", UniversalBinary.FatArchs);
145   IO.mapRequired("Slices", UniversalBinary.Slices);
146 
147   if (IO.getContext() == &UniversalBinary)
148     IO.setContext(nullptr);
149 }
150 
151 void MappingTraits<MachOYAML::LinkEditData>::mapping(
152     IO &IO, MachOYAML::LinkEditData &LinkEditData) {
153   IO.mapOptional("RebaseOpcodes", LinkEditData.RebaseOpcodes);
154   IO.mapOptional("BindOpcodes", LinkEditData.BindOpcodes);
155   IO.mapOptional("WeakBindOpcodes", LinkEditData.WeakBindOpcodes);
156   IO.mapOptional("LazyBindOpcodes", LinkEditData.LazyBindOpcodes);
157   if(LinkEditData.ExportTrie.Children.size() > 0 || !IO.outputting())
158     IO.mapOptional("ExportTrie", LinkEditData.ExportTrie);
159   IO.mapOptional("NameList", LinkEditData.NameList);
160   IO.mapOptional("StringTable", LinkEditData.StringTable);
161 }
162 
163 void MappingTraits<MachOYAML::RebaseOpcode>::mapping(
164     IO &IO, MachOYAML::RebaseOpcode &RebaseOpcode) {
165   IO.mapRequired("Opcode", RebaseOpcode.Opcode);
166   IO.mapRequired("Imm", RebaseOpcode.Imm);
167   IO.mapOptional("ExtraData", RebaseOpcode.ExtraData);
168 }
169 
170 void MappingTraits<MachOYAML::BindOpcode>::mapping(
171     IO &IO, MachOYAML::BindOpcode &BindOpcode) {
172   IO.mapRequired("Opcode", BindOpcode.Opcode);
173   IO.mapRequired("Imm", BindOpcode.Imm);
174   IO.mapOptional("ULEBExtraData", BindOpcode.ULEBExtraData);
175   IO.mapOptional("SLEBExtraData", BindOpcode.SLEBExtraData);
176   IO.mapOptional("Symbol", BindOpcode.Symbol);
177 }
178 
179 void MappingTraits<MachOYAML::ExportEntry>::mapping(
180     IO &IO, MachOYAML::ExportEntry &ExportEntry) {
181   IO.mapRequired("TerminalSize", ExportEntry.TerminalSize);
182   IO.mapOptional("NodeOffset", ExportEntry.NodeOffset);
183   IO.mapOptional("Name", ExportEntry.Name);
184   IO.mapOptional("Flags", ExportEntry.Flags);
185   IO.mapOptional("Address", ExportEntry.Address);
186   IO.mapOptional("Other", ExportEntry.Other);
187   IO.mapOptional("ImportName", ExportEntry.ImportName);
188   IO.mapOptional("Children", ExportEntry.Children);
189 }
190 
191 void MappingTraits<MachOYAML::NListEntry>::mapping(
192     IO &IO, MachOYAML::NListEntry &NListEntry) {
193   IO.mapRequired("n_strx", NListEntry.n_strx);
194   IO.mapRequired("n_type", NListEntry.n_type);
195   IO.mapRequired("n_sect", NListEntry.n_sect);
196   IO.mapRequired("n_desc", NListEntry.n_desc);
197   IO.mapRequired("n_value", NListEntry.n_value);
198 }
199 
200 template <typename StructType>
201 void mapLoadCommandData(IO &IO, MachOYAML::LoadCommand &LoadCommand) {}
202 
203 template <>
204 void mapLoadCommandData<MachO::segment_command>(
205     IO &IO, MachOYAML::LoadCommand &LoadCommand) {
206   IO.mapOptional("Sections", LoadCommand.Sections);
207 }
208 
209 template <>
210 void mapLoadCommandData<MachO::segment_command_64>(
211     IO &IO, MachOYAML::LoadCommand &LoadCommand) {
212   IO.mapOptional("Sections", LoadCommand.Sections);
213 }
214 
215 template <>
216 void mapLoadCommandData<MachO::dylib_command>(
217     IO &IO, MachOYAML::LoadCommand &LoadCommand) {
218   IO.mapOptional("PayloadString", LoadCommand.PayloadString);
219 }
220 
221 template <>
222 void mapLoadCommandData<MachO::rpath_command>(
223     IO &IO, MachOYAML::LoadCommand &LoadCommand) {
224   IO.mapOptional("PayloadString", LoadCommand.PayloadString);
225 }
226 
227 template <>
228 void mapLoadCommandData<MachO::dylinker_command>(
229     IO &IO, MachOYAML::LoadCommand &LoadCommand) {
230   IO.mapOptional("PayloadString", LoadCommand.PayloadString);
231 }
232 
233 template <>
234 void mapLoadCommandData<MachO::build_version_command>(
235     IO &IO, MachOYAML::LoadCommand &LoadCommand) {
236   IO.mapOptional("Tools", LoadCommand.Tools);
237 }
238 
239 void MappingTraits<MachOYAML::LoadCommand>::mapping(
240     IO &IO, MachOYAML::LoadCommand &LoadCommand) {
241   MachO::LoadCommandType TempCmd = static_cast<MachO::LoadCommandType>(
242       LoadCommand.Data.load_command_data.cmd);
243   IO.mapRequired("cmd", TempCmd);
244   LoadCommand.Data.load_command_data.cmd = TempCmd;
245   IO.mapRequired("cmdsize", LoadCommand.Data.load_command_data.cmdsize);
246 
247 #define HANDLE_LOAD_COMMAND(LCName, LCValue, LCStruct)                         \
248   case MachO::LCName:                                                          \
249     MappingTraits<MachO::LCStruct>::mapping(IO,                                \
250                                             LoadCommand.Data.LCStruct##_data); \
251     mapLoadCommandData<MachO::LCStruct>(IO, LoadCommand);                      \
252     break;
253 
254   switch (LoadCommand.Data.load_command_data.cmd) {
255 #include "llvm/BinaryFormat/MachO.def"
256   }
257   IO.mapOptional("PayloadBytes", LoadCommand.PayloadBytes);
258   IO.mapOptional("ZeroPadBytes", LoadCommand.ZeroPadBytes, (uint64_t)0ull);
259 }
260 
261 void MappingTraits<MachO::dyld_info_command>::mapping(
262     IO &IO, MachO::dyld_info_command &LoadCommand) {
263   IO.mapRequired("rebase_off", LoadCommand.rebase_off);
264   IO.mapRequired("rebase_size", LoadCommand.rebase_size);
265   IO.mapRequired("bind_off", LoadCommand.bind_off);
266   IO.mapRequired("bind_size", LoadCommand.bind_size);
267   IO.mapRequired("weak_bind_off", LoadCommand.weak_bind_off);
268   IO.mapRequired("weak_bind_size", LoadCommand.weak_bind_size);
269   IO.mapRequired("lazy_bind_off", LoadCommand.lazy_bind_off);
270   IO.mapRequired("lazy_bind_size", LoadCommand.lazy_bind_size);
271   IO.mapRequired("export_off", LoadCommand.export_off);
272   IO.mapRequired("export_size", LoadCommand.export_size);
273 }
274 
275 void MappingTraits<MachOYAML::Section>::mapping(IO &IO,
276                                                 MachOYAML::Section &Section) {
277   IO.mapRequired("sectname", Section.sectname);
278   IO.mapRequired("segname", Section.segname);
279   IO.mapRequired("addr", Section.addr);
280   IO.mapRequired("size", Section.size);
281   IO.mapRequired("offset", Section.offset);
282   IO.mapRequired("align", Section.align);
283   IO.mapRequired("reloff", Section.reloff);
284   IO.mapRequired("nreloc", Section.nreloc);
285   IO.mapRequired("flags", Section.flags);
286   IO.mapRequired("reserved1", Section.reserved1);
287   IO.mapRequired("reserved2", Section.reserved2);
288   IO.mapOptional("reserved3", Section.reserved3);
289 }
290 
291 void MappingTraits<MachO::build_tool_version>::mapping(
292     IO &IO, MachO::build_tool_version &tool) {
293   IO.mapRequired("tool", tool.tool);
294   IO.mapRequired("version", tool.version);
295 }
296 
297 void MappingTraits<MachO::dylib>::mapping(IO &IO, MachO::dylib &DylibStruct) {
298   IO.mapRequired("name", DylibStruct.name);
299   IO.mapRequired("timestamp", DylibStruct.timestamp);
300   IO.mapRequired("current_version", DylibStruct.current_version);
301   IO.mapRequired("compatibility_version", DylibStruct.compatibility_version);
302 }
303 
304 void MappingTraits<MachO::dylib_command>::mapping(
305     IO &IO, MachO::dylib_command &LoadCommand) {
306   IO.mapRequired("dylib", LoadCommand.dylib);
307 }
308 
309 void MappingTraits<MachO::dylinker_command>::mapping(
310     IO &IO, MachO::dylinker_command &LoadCommand) {
311 
312   IO.mapRequired("name", LoadCommand.name);
313 }
314 
315 void MappingTraits<MachO::dysymtab_command>::mapping(
316     IO &IO, MachO::dysymtab_command &LoadCommand) {
317 
318   IO.mapRequired("ilocalsym", LoadCommand.ilocalsym);
319   IO.mapRequired("nlocalsym", LoadCommand.nlocalsym);
320   IO.mapRequired("iextdefsym", LoadCommand.iextdefsym);
321   IO.mapRequired("nextdefsym", LoadCommand.nextdefsym);
322   IO.mapRequired("iundefsym", LoadCommand.iundefsym);
323   IO.mapRequired("nundefsym", LoadCommand.nundefsym);
324   IO.mapRequired("tocoff", LoadCommand.tocoff);
325   IO.mapRequired("ntoc", LoadCommand.ntoc);
326   IO.mapRequired("modtaboff", LoadCommand.modtaboff);
327   IO.mapRequired("nmodtab", LoadCommand.nmodtab);
328   IO.mapRequired("extrefsymoff", LoadCommand.extrefsymoff);
329   IO.mapRequired("nextrefsyms", LoadCommand.nextrefsyms);
330   IO.mapRequired("indirectsymoff", LoadCommand.indirectsymoff);
331   IO.mapRequired("nindirectsyms", LoadCommand.nindirectsyms);
332   IO.mapRequired("extreloff", LoadCommand.extreloff);
333   IO.mapRequired("nextrel", LoadCommand.nextrel);
334   IO.mapRequired("locreloff", LoadCommand.locreloff);
335   IO.mapRequired("nlocrel", LoadCommand.nlocrel);
336 }
337 
338 void MappingTraits<MachO::encryption_info_command>::mapping(
339     IO &IO, MachO::encryption_info_command &LoadCommand) {
340 
341   IO.mapRequired("cryptoff", LoadCommand.cryptoff);
342   IO.mapRequired("cryptsize", LoadCommand.cryptsize);
343   IO.mapRequired("cryptid", LoadCommand.cryptid);
344 }
345 
346 void MappingTraits<MachO::encryption_info_command_64>::mapping(
347     IO &IO, MachO::encryption_info_command_64 &LoadCommand) {
348 
349   IO.mapRequired("cryptoff", LoadCommand.cryptoff);
350   IO.mapRequired("cryptsize", LoadCommand.cryptsize);
351   IO.mapRequired("cryptid", LoadCommand.cryptid);
352   IO.mapRequired("pad", LoadCommand.pad);
353 }
354 
355 void MappingTraits<MachO::entry_point_command>::mapping(
356     IO &IO, MachO::entry_point_command &LoadCommand) {
357 
358   IO.mapRequired("entryoff", LoadCommand.entryoff);
359   IO.mapRequired("stacksize", LoadCommand.stacksize);
360 }
361 
362 void MappingTraits<MachO::fvmfile_command>::mapping(
363     IO &IO, MachO::fvmfile_command &LoadCommand) {
364 
365   IO.mapRequired("name", LoadCommand.name);
366   IO.mapRequired("header_addr", LoadCommand.header_addr);
367 }
368 
369 void MappingTraits<MachO::fvmlib>::mapping(IO &IO, MachO::fvmlib &FVMLib) {
370   IO.mapRequired("name", FVMLib.name);
371   IO.mapRequired("minor_version", FVMLib.minor_version);
372   IO.mapRequired("header_addr", FVMLib.header_addr);
373 }
374 
375 void MappingTraits<MachO::fvmlib_command>::mapping(
376     IO &IO, MachO::fvmlib_command &LoadCommand) {
377 
378   IO.mapRequired("fvmlib", LoadCommand.fvmlib);
379 }
380 
381 void MappingTraits<MachO::ident_command>::mapping(
382     IO &IO, MachO::ident_command &LoadCommand) {}
383 
384 void MappingTraits<MachO::linkedit_data_command>::mapping(
385     IO &IO, MachO::linkedit_data_command &LoadCommand) {
386 
387   IO.mapRequired("dataoff", LoadCommand.dataoff);
388   IO.mapRequired("datasize", LoadCommand.datasize);
389 }
390 
391 void MappingTraits<MachO::linker_option_command>::mapping(
392     IO &IO, MachO::linker_option_command &LoadCommand) {
393 
394   IO.mapRequired("count", LoadCommand.count);
395 }
396 
397 void MappingTraits<MachO::prebind_cksum_command>::mapping(
398     IO &IO, MachO::prebind_cksum_command &LoadCommand) {
399 
400   IO.mapRequired("cksum", LoadCommand.cksum);
401 }
402 
403 void MappingTraits<MachO::load_command>::mapping(
404     IO &IO, MachO::load_command &LoadCommand) {}
405 
406 void MappingTraits<MachO::prebound_dylib_command>::mapping(
407     IO &IO, MachO::prebound_dylib_command &LoadCommand) {
408 
409   IO.mapRequired("name", LoadCommand.name);
410   IO.mapRequired("nmodules", LoadCommand.nmodules);
411   IO.mapRequired("linked_modules", LoadCommand.linked_modules);
412 }
413 
414 void MappingTraits<MachO::routines_command>::mapping(
415     IO &IO, MachO::routines_command &LoadCommand) {
416 
417   IO.mapRequired("init_address", LoadCommand.init_address);
418   IO.mapRequired("init_module", LoadCommand.init_module);
419   IO.mapRequired("reserved1", LoadCommand.reserved1);
420   IO.mapRequired("reserved2", LoadCommand.reserved2);
421   IO.mapRequired("reserved3", LoadCommand.reserved3);
422   IO.mapRequired("reserved4", LoadCommand.reserved4);
423   IO.mapRequired("reserved5", LoadCommand.reserved5);
424   IO.mapRequired("reserved6", LoadCommand.reserved6);
425 }
426 
427 void MappingTraits<MachO::routines_command_64>::mapping(
428     IO &IO, MachO::routines_command_64 &LoadCommand) {
429 
430   IO.mapRequired("init_address", LoadCommand.init_address);
431   IO.mapRequired("init_module", LoadCommand.init_module);
432   IO.mapRequired("reserved1", LoadCommand.reserved1);
433   IO.mapRequired("reserved2", LoadCommand.reserved2);
434   IO.mapRequired("reserved3", LoadCommand.reserved3);
435   IO.mapRequired("reserved4", LoadCommand.reserved4);
436   IO.mapRequired("reserved5", LoadCommand.reserved5);
437   IO.mapRequired("reserved6", LoadCommand.reserved6);
438 }
439 
440 void MappingTraits<MachO::rpath_command>::mapping(
441     IO &IO, MachO::rpath_command &LoadCommand) {
442 
443   IO.mapRequired("path", LoadCommand.path);
444 }
445 
446 void MappingTraits<MachO::section>::mapping(IO &IO, MachO::section &Section) {
447   IO.mapRequired("sectname", Section.sectname);
448   IO.mapRequired("segname", Section.segname);
449   IO.mapRequired("addr", Section.addr);
450   IO.mapRequired("size", Section.size);
451   IO.mapRequired("offset", Section.offset);
452   IO.mapRequired("align", Section.align);
453   IO.mapRequired("reloff", Section.reloff);
454   IO.mapRequired("nreloc", Section.nreloc);
455   IO.mapRequired("flags", Section.flags);
456   IO.mapRequired("reserved1", Section.reserved1);
457   IO.mapRequired("reserved2", Section.reserved2);
458 }
459 
460 void MappingTraits<MachO::section_64>::mapping(IO &IO,
461                                                MachO::section_64 &Section) {
462   IO.mapRequired("sectname", Section.sectname);
463   IO.mapRequired("segname", Section.segname);
464   IO.mapRequired("addr", Section.addr);
465   IO.mapRequired("size", Section.size);
466   IO.mapRequired("offset", Section.offset);
467   IO.mapRequired("align", Section.align);
468   IO.mapRequired("reloff", Section.reloff);
469   IO.mapRequired("nreloc", Section.nreloc);
470   IO.mapRequired("flags", Section.flags);
471   IO.mapRequired("reserved1", Section.reserved1);
472   IO.mapRequired("reserved2", Section.reserved2);
473   IO.mapRequired("reserved3", Section.reserved3);
474 }
475 
476 void MappingTraits<MachO::segment_command>::mapping(
477     IO &IO, MachO::segment_command &LoadCommand) {
478 
479   IO.mapRequired("segname", LoadCommand.segname);
480   IO.mapRequired("vmaddr", LoadCommand.vmaddr);
481   IO.mapRequired("vmsize", LoadCommand.vmsize);
482   IO.mapRequired("fileoff", LoadCommand.fileoff);
483   IO.mapRequired("filesize", LoadCommand.filesize);
484   IO.mapRequired("maxprot", LoadCommand.maxprot);
485   IO.mapRequired("initprot", LoadCommand.initprot);
486   IO.mapRequired("nsects", LoadCommand.nsects);
487   IO.mapRequired("flags", LoadCommand.flags);
488 }
489 
490 void MappingTraits<MachO::segment_command_64>::mapping(
491     IO &IO, MachO::segment_command_64 &LoadCommand) {
492 
493   IO.mapRequired("segname", LoadCommand.segname);
494   IO.mapRequired("vmaddr", LoadCommand.vmaddr);
495   IO.mapRequired("vmsize", LoadCommand.vmsize);
496   IO.mapRequired("fileoff", LoadCommand.fileoff);
497   IO.mapRequired("filesize", LoadCommand.filesize);
498   IO.mapRequired("maxprot", LoadCommand.maxprot);
499   IO.mapRequired("initprot", LoadCommand.initprot);
500   IO.mapRequired("nsects", LoadCommand.nsects);
501   IO.mapRequired("flags", LoadCommand.flags);
502 }
503 
504 void MappingTraits<MachO::source_version_command>::mapping(
505     IO &IO, MachO::source_version_command &LoadCommand) {
506 
507   IO.mapRequired("version", LoadCommand.version);
508 }
509 
510 void MappingTraits<MachO::sub_client_command>::mapping(
511     IO &IO, MachO::sub_client_command &LoadCommand) {
512 
513   IO.mapRequired("client", LoadCommand.client);
514 }
515 
516 void MappingTraits<MachO::sub_framework_command>::mapping(
517     IO &IO, MachO::sub_framework_command &LoadCommand) {
518 
519   IO.mapRequired("umbrella", LoadCommand.umbrella);
520 }
521 
522 void MappingTraits<MachO::sub_library_command>::mapping(
523     IO &IO, MachO::sub_library_command &LoadCommand) {
524 
525   IO.mapRequired("sub_library", LoadCommand.sub_library);
526 }
527 
528 void MappingTraits<MachO::sub_umbrella_command>::mapping(
529     IO &IO, MachO::sub_umbrella_command &LoadCommand) {
530 
531   IO.mapRequired("sub_umbrella", LoadCommand.sub_umbrella);
532 }
533 
534 void MappingTraits<MachO::symseg_command>::mapping(
535     IO &IO, MachO::symseg_command &LoadCommand) {
536 
537   IO.mapRequired("offset", LoadCommand.offset);
538   IO.mapRequired("size", LoadCommand.size);
539 }
540 
541 void MappingTraits<MachO::symtab_command>::mapping(
542     IO &IO, MachO::symtab_command &LoadCommand) {
543 
544   IO.mapRequired("symoff", LoadCommand.symoff);
545   IO.mapRequired("nsyms", LoadCommand.nsyms);
546   IO.mapRequired("stroff", LoadCommand.stroff);
547   IO.mapRequired("strsize", LoadCommand.strsize);
548 }
549 
550 void MappingTraits<MachO::thread_command>::mapping(
551     IO &IO, MachO::thread_command &LoadCommand) {}
552 
553 void MappingTraits<MachO::twolevel_hints_command>::mapping(
554     IO &IO, MachO::twolevel_hints_command &LoadCommand) {
555 
556   IO.mapRequired("offset", LoadCommand.offset);
557   IO.mapRequired("nhints", LoadCommand.nhints);
558 }
559 
560 void MappingTraits<MachO::uuid_command>::mapping(
561     IO &IO, MachO::uuid_command &LoadCommand) {
562 
563   IO.mapRequired("uuid", LoadCommand.uuid);
564 }
565 
566 void MappingTraits<MachO::version_min_command>::mapping(
567     IO &IO, MachO::version_min_command &LoadCommand) {
568 
569   IO.mapRequired("version", LoadCommand.version);
570   IO.mapRequired("sdk", LoadCommand.sdk);
571 }
572 
573 void MappingTraits<MachO::note_command>::mapping(
574     IO &IO, MachO::note_command &LoadCommand) {
575 
576   IO.mapRequired("data_owner", LoadCommand.data_owner);
577   IO.mapRequired("offset", LoadCommand.offset);
578   IO.mapRequired("size", LoadCommand.size);
579 }
580 
581 void MappingTraits<MachO::build_version_command>::mapping(
582     IO &IO, MachO::build_version_command &LoadCommand) {
583 
584   IO.mapRequired("platform", LoadCommand.platform);
585   IO.mapRequired("minos", LoadCommand.minos);
586   IO.mapRequired("sdk", LoadCommand.sdk);
587   IO.mapRequired("ntools", LoadCommand.ntools);
588 }
589 
590 } // namespace llvm::yaml
591 
592 } // namespace llvm
593