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/Support/Casting.h"
16 #include "llvm/Support/Format.h"
17 #include "llvm/Support/Host.h"
18 #include "llvm/Support/MachO.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 void MappingTraits<MachOYAML::LoadCommand>::mapping(
234     IO &IO, MachOYAML::LoadCommand &LoadCommand) {
235   MachO::LoadCommandType TempCmd = static_cast<MachO::LoadCommandType>(
236       LoadCommand.Data.load_command_data.cmd);
237   IO.mapRequired("cmd", TempCmd);
238   LoadCommand.Data.load_command_data.cmd = TempCmd;
239   IO.mapRequired("cmdsize", LoadCommand.Data.load_command_data.cmdsize);
240 
241 #define HANDLE_LOAD_COMMAND(LCName, LCValue, LCStruct)                         \
242   case MachO::LCName:                                                          \
243     MappingTraits<MachO::LCStruct>::mapping(IO,                                \
244                                             LoadCommand.Data.LCStruct##_data); \
245     mapLoadCommandData<MachO::LCStruct>(IO, LoadCommand);                      \
246     break;
247 
248   switch (LoadCommand.Data.load_command_data.cmd) {
249 #include "llvm/Support/MachO.def"
250   }
251   IO.mapOptional("PayloadBytes", LoadCommand.PayloadBytes);
252   IO.mapOptional("ZeroPadBytes", LoadCommand.ZeroPadBytes, (uint64_t)0ull);
253 }
254 
255 void MappingTraits<MachO::dyld_info_command>::mapping(
256     IO &IO, MachO::dyld_info_command &LoadCommand) {
257   IO.mapRequired("rebase_off", LoadCommand.rebase_off);
258   IO.mapRequired("rebase_size", LoadCommand.rebase_size);
259   IO.mapRequired("bind_off", LoadCommand.bind_off);
260   IO.mapRequired("bind_size", LoadCommand.bind_size);
261   IO.mapRequired("weak_bind_off", LoadCommand.weak_bind_off);
262   IO.mapRequired("weak_bind_size", LoadCommand.weak_bind_size);
263   IO.mapRequired("lazy_bind_off", LoadCommand.lazy_bind_off);
264   IO.mapRequired("lazy_bind_size", LoadCommand.lazy_bind_size);
265   IO.mapRequired("export_off", LoadCommand.export_off);
266   IO.mapRequired("export_size", LoadCommand.export_size);
267 }
268 
269 void MappingTraits<MachOYAML::Section>::mapping(IO &IO,
270                                                 MachOYAML::Section &Section) {
271   IO.mapRequired("sectname", Section.sectname);
272   IO.mapRequired("segname", Section.segname);
273   IO.mapRequired("addr", Section.addr);
274   IO.mapRequired("size", Section.size);
275   IO.mapRequired("offset", Section.offset);
276   IO.mapRequired("align", Section.align);
277   IO.mapRequired("reloff", Section.reloff);
278   IO.mapRequired("nreloc", Section.nreloc);
279   IO.mapRequired("flags", Section.flags);
280   IO.mapRequired("reserved1", Section.reserved1);
281   IO.mapRequired("reserved2", Section.reserved2);
282   IO.mapOptional("reserved3", Section.reserved3);
283 }
284 
285 void MappingTraits<MachO::dylib>::mapping(IO &IO, MachO::dylib &DylibStruct) {
286   IO.mapRequired("name", DylibStruct.name);
287   IO.mapRequired("timestamp", DylibStruct.timestamp);
288   IO.mapRequired("current_version", DylibStruct.current_version);
289   IO.mapRequired("compatibility_version", DylibStruct.compatibility_version);
290 }
291 
292 void MappingTraits<MachO::dylib_command>::mapping(
293     IO &IO, MachO::dylib_command &LoadCommand) {
294   IO.mapRequired("dylib", LoadCommand.dylib);
295 }
296 
297 void MappingTraits<MachO::dylinker_command>::mapping(
298     IO &IO, MachO::dylinker_command &LoadCommand) {
299 
300   IO.mapRequired("name", LoadCommand.name);
301 }
302 
303 void MappingTraits<MachO::dysymtab_command>::mapping(
304     IO &IO, MachO::dysymtab_command &LoadCommand) {
305 
306   IO.mapRequired("ilocalsym", LoadCommand.ilocalsym);
307   IO.mapRequired("nlocalsym", LoadCommand.nlocalsym);
308   IO.mapRequired("iextdefsym", LoadCommand.iextdefsym);
309   IO.mapRequired("nextdefsym", LoadCommand.nextdefsym);
310   IO.mapRequired("iundefsym", LoadCommand.iundefsym);
311   IO.mapRequired("nundefsym", LoadCommand.nundefsym);
312   IO.mapRequired("tocoff", LoadCommand.tocoff);
313   IO.mapRequired("ntoc", LoadCommand.ntoc);
314   IO.mapRequired("modtaboff", LoadCommand.modtaboff);
315   IO.mapRequired("nmodtab", LoadCommand.nmodtab);
316   IO.mapRequired("extrefsymoff", LoadCommand.extrefsymoff);
317   IO.mapRequired("nextrefsyms", LoadCommand.nextrefsyms);
318   IO.mapRequired("indirectsymoff", LoadCommand.indirectsymoff);
319   IO.mapRequired("nindirectsyms", LoadCommand.nindirectsyms);
320   IO.mapRequired("extreloff", LoadCommand.extreloff);
321   IO.mapRequired("nextrel", LoadCommand.nextrel);
322   IO.mapRequired("locreloff", LoadCommand.locreloff);
323   IO.mapRequired("nlocrel", LoadCommand.nlocrel);
324 }
325 
326 void MappingTraits<MachO::encryption_info_command>::mapping(
327     IO &IO, MachO::encryption_info_command &LoadCommand) {
328 
329   IO.mapRequired("cryptoff", LoadCommand.cryptoff);
330   IO.mapRequired("cryptsize", LoadCommand.cryptsize);
331   IO.mapRequired("cryptid", LoadCommand.cryptid);
332 }
333 
334 void MappingTraits<MachO::encryption_info_command_64>::mapping(
335     IO &IO, MachO::encryption_info_command_64 &LoadCommand) {
336 
337   IO.mapRequired("cryptoff", LoadCommand.cryptoff);
338   IO.mapRequired("cryptsize", LoadCommand.cryptsize);
339   IO.mapRequired("cryptid", LoadCommand.cryptid);
340   IO.mapRequired("pad", LoadCommand.pad);
341 }
342 
343 void MappingTraits<MachO::entry_point_command>::mapping(
344     IO &IO, MachO::entry_point_command &LoadCommand) {
345 
346   IO.mapRequired("entryoff", LoadCommand.entryoff);
347   IO.mapRequired("stacksize", LoadCommand.stacksize);
348 }
349 
350 void MappingTraits<MachO::fvmfile_command>::mapping(
351     IO &IO, MachO::fvmfile_command &LoadCommand) {
352 
353   IO.mapRequired("name", LoadCommand.name);
354   IO.mapRequired("header_addr", LoadCommand.header_addr);
355 }
356 
357 void MappingTraits<MachO::fvmlib>::mapping(IO &IO, MachO::fvmlib &FVMLib) {
358   IO.mapRequired("name", FVMLib.name);
359   IO.mapRequired("minor_version", FVMLib.minor_version);
360   IO.mapRequired("header_addr", FVMLib.header_addr);
361 }
362 
363 void MappingTraits<MachO::fvmlib_command>::mapping(
364     IO &IO, MachO::fvmlib_command &LoadCommand) {
365 
366   IO.mapRequired("fvmlib", LoadCommand.fvmlib);
367 }
368 
369 void MappingTraits<MachO::ident_command>::mapping(
370     IO &IO, MachO::ident_command &LoadCommand) {}
371 
372 void MappingTraits<MachO::linkedit_data_command>::mapping(
373     IO &IO, MachO::linkedit_data_command &LoadCommand) {
374 
375   IO.mapRequired("dataoff", LoadCommand.dataoff);
376   IO.mapRequired("datasize", LoadCommand.datasize);
377 }
378 
379 void MappingTraits<MachO::linker_option_command>::mapping(
380     IO &IO, MachO::linker_option_command &LoadCommand) {
381 
382   IO.mapRequired("count", LoadCommand.count);
383 }
384 
385 void MappingTraits<MachO::prebind_cksum_command>::mapping(
386     IO &IO, MachO::prebind_cksum_command &LoadCommand) {
387 
388   IO.mapRequired("cksum", LoadCommand.cksum);
389 }
390 
391 void MappingTraits<MachO::load_command>::mapping(
392     IO &IO, MachO::load_command &LoadCommand) {}
393 
394 void MappingTraits<MachO::prebound_dylib_command>::mapping(
395     IO &IO, MachO::prebound_dylib_command &LoadCommand) {
396 
397   IO.mapRequired("name", LoadCommand.name);
398   IO.mapRequired("nmodules", LoadCommand.nmodules);
399   IO.mapRequired("linked_modules", LoadCommand.linked_modules);
400 }
401 
402 void MappingTraits<MachO::routines_command>::mapping(
403     IO &IO, MachO::routines_command &LoadCommand) {
404 
405   IO.mapRequired("init_address", LoadCommand.init_address);
406   IO.mapRequired("init_module", LoadCommand.init_module);
407   IO.mapRequired("reserved1", LoadCommand.reserved1);
408   IO.mapRequired("reserved2", LoadCommand.reserved2);
409   IO.mapRequired("reserved3", LoadCommand.reserved3);
410   IO.mapRequired("reserved4", LoadCommand.reserved4);
411   IO.mapRequired("reserved5", LoadCommand.reserved5);
412   IO.mapRequired("reserved6", LoadCommand.reserved6);
413 }
414 
415 void MappingTraits<MachO::routines_command_64>::mapping(
416     IO &IO, MachO::routines_command_64 &LoadCommand) {
417 
418   IO.mapRequired("init_address", LoadCommand.init_address);
419   IO.mapRequired("init_module", LoadCommand.init_module);
420   IO.mapRequired("reserved1", LoadCommand.reserved1);
421   IO.mapRequired("reserved2", LoadCommand.reserved2);
422   IO.mapRequired("reserved3", LoadCommand.reserved3);
423   IO.mapRequired("reserved4", LoadCommand.reserved4);
424   IO.mapRequired("reserved5", LoadCommand.reserved5);
425   IO.mapRequired("reserved6", LoadCommand.reserved6);
426 }
427 
428 void MappingTraits<MachO::rpath_command>::mapping(
429     IO &IO, MachO::rpath_command &LoadCommand) {
430 
431   IO.mapRequired("path", LoadCommand.path);
432 }
433 
434 void MappingTraits<MachO::section>::mapping(IO &IO, MachO::section &Section) {
435   IO.mapRequired("sectname", Section.sectname);
436   IO.mapRequired("segname", Section.segname);
437   IO.mapRequired("addr", Section.addr);
438   IO.mapRequired("size", Section.size);
439   IO.mapRequired("offset", Section.offset);
440   IO.mapRequired("align", Section.align);
441   IO.mapRequired("reloff", Section.reloff);
442   IO.mapRequired("nreloc", Section.nreloc);
443   IO.mapRequired("flags", Section.flags);
444   IO.mapRequired("reserved1", Section.reserved1);
445   IO.mapRequired("reserved2", Section.reserved2);
446 }
447 
448 void MappingTraits<MachO::section_64>::mapping(IO &IO,
449                                                MachO::section_64 &Section) {
450   IO.mapRequired("sectname", Section.sectname);
451   IO.mapRequired("segname", Section.segname);
452   IO.mapRequired("addr", Section.addr);
453   IO.mapRequired("size", Section.size);
454   IO.mapRequired("offset", Section.offset);
455   IO.mapRequired("align", Section.align);
456   IO.mapRequired("reloff", Section.reloff);
457   IO.mapRequired("nreloc", Section.nreloc);
458   IO.mapRequired("flags", Section.flags);
459   IO.mapRequired("reserved1", Section.reserved1);
460   IO.mapRequired("reserved2", Section.reserved2);
461   IO.mapRequired("reserved3", Section.reserved3);
462 }
463 
464 void MappingTraits<MachO::segment_command>::mapping(
465     IO &IO, MachO::segment_command &LoadCommand) {
466 
467   IO.mapRequired("segname", LoadCommand.segname);
468   IO.mapRequired("vmaddr", LoadCommand.vmaddr);
469   IO.mapRequired("vmsize", LoadCommand.vmsize);
470   IO.mapRequired("fileoff", LoadCommand.fileoff);
471   IO.mapRequired("filesize", LoadCommand.filesize);
472   IO.mapRequired("maxprot", LoadCommand.maxprot);
473   IO.mapRequired("initprot", LoadCommand.initprot);
474   IO.mapRequired("nsects", LoadCommand.nsects);
475   IO.mapRequired("flags", LoadCommand.flags);
476 }
477 
478 void MappingTraits<MachO::segment_command_64>::mapping(
479     IO &IO, MachO::segment_command_64 &LoadCommand) {
480 
481   IO.mapRequired("segname", LoadCommand.segname);
482   IO.mapRequired("vmaddr", LoadCommand.vmaddr);
483   IO.mapRequired("vmsize", LoadCommand.vmsize);
484   IO.mapRequired("fileoff", LoadCommand.fileoff);
485   IO.mapRequired("filesize", LoadCommand.filesize);
486   IO.mapRequired("maxprot", LoadCommand.maxprot);
487   IO.mapRequired("initprot", LoadCommand.initprot);
488   IO.mapRequired("nsects", LoadCommand.nsects);
489   IO.mapRequired("flags", LoadCommand.flags);
490 }
491 
492 void MappingTraits<MachO::source_version_command>::mapping(
493     IO &IO, MachO::source_version_command &LoadCommand) {
494 
495   IO.mapRequired("version", LoadCommand.version);
496 }
497 
498 void MappingTraits<MachO::sub_client_command>::mapping(
499     IO &IO, MachO::sub_client_command &LoadCommand) {
500 
501   IO.mapRequired("client", LoadCommand.client);
502 }
503 
504 void MappingTraits<MachO::sub_framework_command>::mapping(
505     IO &IO, MachO::sub_framework_command &LoadCommand) {
506 
507   IO.mapRequired("umbrella", LoadCommand.umbrella);
508 }
509 
510 void MappingTraits<MachO::sub_library_command>::mapping(
511     IO &IO, MachO::sub_library_command &LoadCommand) {
512 
513   IO.mapRequired("sub_library", LoadCommand.sub_library);
514 }
515 
516 void MappingTraits<MachO::sub_umbrella_command>::mapping(
517     IO &IO, MachO::sub_umbrella_command &LoadCommand) {
518 
519   IO.mapRequired("sub_umbrella", LoadCommand.sub_umbrella);
520 }
521 
522 void MappingTraits<MachO::symseg_command>::mapping(
523     IO &IO, MachO::symseg_command &LoadCommand) {
524 
525   IO.mapRequired("offset", LoadCommand.offset);
526   IO.mapRequired("size", LoadCommand.size);
527 }
528 
529 void MappingTraits<MachO::symtab_command>::mapping(
530     IO &IO, MachO::symtab_command &LoadCommand) {
531 
532   IO.mapRequired("symoff", LoadCommand.symoff);
533   IO.mapRequired("nsyms", LoadCommand.nsyms);
534   IO.mapRequired("stroff", LoadCommand.stroff);
535   IO.mapRequired("strsize", LoadCommand.strsize);
536 }
537 
538 void MappingTraits<MachO::thread_command>::mapping(
539     IO &IO, MachO::thread_command &LoadCommand) {}
540 
541 void MappingTraits<MachO::twolevel_hints_command>::mapping(
542     IO &IO, MachO::twolevel_hints_command &LoadCommand) {
543 
544   IO.mapRequired("offset", LoadCommand.offset);
545   IO.mapRequired("nhints", LoadCommand.nhints);
546 }
547 
548 void MappingTraits<MachO::uuid_command>::mapping(
549     IO &IO, MachO::uuid_command &LoadCommand) {
550 
551   IO.mapRequired("uuid", LoadCommand.uuid);
552 }
553 
554 void MappingTraits<MachO::version_min_command>::mapping(
555     IO &IO, MachO::version_min_command &LoadCommand) {
556 
557   IO.mapRequired("version", LoadCommand.version);
558   IO.mapRequired("sdk", LoadCommand.sdk);
559 }
560 
561 void MappingTraits<MachO::note_command>::mapping(
562     IO &IO, MachO::note_command &LoadCommand) {
563 
564   IO.mapRequired("data_owner", LoadCommand.data_owner);
565   IO.mapRequired("offset", LoadCommand.offset);
566   IO.mapRequired("size", LoadCommand.size);
567 }
568 
569 } // namespace llvm::yaml
570 
571 } // namespace llvm
572