xref: /freebsd/contrib/llvm-project/llvm/lib/ObjectYAML/MachOYAML.cpp (revision 2f513db72b034fd5ef7f080b11be5c711c15186a) 
1 //===- MachOYAML.cpp - MachO YAMLIO implementation ------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file defines classes for handling the YAML representation of MachO.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #include "llvm/ObjectYAML/MachOYAML.h"
14 #include "llvm/ADT/StringRef.h"
15 #include "llvm/BinaryFormat/MachO.h"
16 #include "llvm/Support/Format.h"
17 #include "llvm/Support/Host.h"
18 #include "llvm/Support/YAMLTraits.h"
19 #include "llvm/Support/raw_ostream.h"
20 #include <cinttypes>
21 #include <cstdint>
22 #include <cstring>
23 
24 namespace llvm {
25 
26 MachOYAML::LoadCommand::~LoadCommand() = default;
27 
28 bool MachOYAML::LinkEditData::isEmpty() const {
29   return 0 ==
30          RebaseOpcodes.size() + BindOpcodes.size() + WeakBindOpcodes.size() +
31              LazyBindOpcodes.size() + ExportTrie.Children.size() +
32              NameList.size() + StringTable.size();
33 }
34 
35 namespace yaml {
36 
37 void ScalarTraits<char_16>::output(const char_16 &Val, void *,
38                                    raw_ostream &Out) {
39   auto Len = strnlen(&Val[0], 16);
40   Out << StringRef(&Val[0], Len);
41 }
42 
43 StringRef ScalarTraits<char_16>::input(StringRef Scalar, void *, char_16 &Val) {
44   size_t CopySize = 16 >= Scalar.size() ? 16 : Scalar.size();
45   memcpy((void *)Val, Scalar.data(), CopySize);
46 
47   if (Scalar.size() < 16) {
48     memset((void *)&Val[Scalar.size()], 0, 16 - Scalar.size());
49   }
50 
51   return StringRef();
52 }
53 
54 QuotingType ScalarTraits<char_16>::mustQuote(StringRef S) {
55   return needsQuotes(S);
56 }
57 
58 void ScalarTraits<uuid_t>::output(const uuid_t &Val, void *, raw_ostream &Out) {
59   Out.write_uuid(Val);
60 }
61 
62 StringRef ScalarTraits<uuid_t>::input(StringRef Scalar, void *, uuid_t &Val) {
63   size_t OutIdx = 0;
64   for (size_t Idx = 0; Idx < Scalar.size(); ++Idx) {
65     if (Scalar[Idx] == '-' || OutIdx >= 16)
66       continue;
67     unsigned long long TempInt;
68     if (getAsUnsignedInteger(Scalar.slice(Idx, Idx + 2), 16, TempInt))
69       return "invalid number";
70     if (TempInt > 0xFF)
71       return "out of range number";
72     Val[OutIdx] = static_cast<uint8_t>(TempInt);
73     ++Idx; // increment idx an extra time because we're consuming 2 chars
74     ++OutIdx;
75   }
76   return StringRef();
77 }
78 
79 QuotingType ScalarTraits<uuid_t>::mustQuote(StringRef S) {
80   return needsQuotes(S);
81 }
82 
83 void MappingTraits<MachOYAML::FileHeader>::mapping(
84     IO &IO, MachOYAML::FileHeader &FileHdr) {
85   IO.mapRequired("magic", FileHdr.magic);
86   IO.mapRequired("cputype", FileHdr.cputype);
87   IO.mapRequired("cpusubtype", FileHdr.cpusubtype);
88   IO.mapRequired("filetype", FileHdr.filetype);
89   IO.mapRequired("ncmds", FileHdr.ncmds);
90   IO.mapRequired("sizeofcmds", FileHdr.sizeofcmds);
91   IO.mapRequired("flags", FileHdr.flags);
92   if (FileHdr.magic == MachO::MH_MAGIC_64 ||
93       FileHdr.magic == MachO::MH_CIGAM_64)
94     IO.mapRequired("reserved", FileHdr.reserved);
95 }
96 
97 void MappingTraits<MachOYAML::Object>::mapping(IO &IO,
98                                                MachOYAML::Object &Object) {
99   // If the context isn't already set, tag the document as !mach-o.
100   // For Fat files there will be a different tag so they can be differentiated.
101   if (!IO.getContext()) {
102     IO.setContext(&Object);
103   }
104   IO.mapTag("!mach-o", true);
105   IO.mapOptional("IsLittleEndian", Object.IsLittleEndian,
106                  sys::IsLittleEndianHost);
107   Object.DWARF.IsLittleEndian = Object.IsLittleEndian;
108 
109   IO.mapRequired("FileHeader", Object.Header);
110   IO.mapOptional("LoadCommands", Object.LoadCommands);
111   if(!Object.LinkEdit.isEmpty() || !IO.outputting())
112     IO.mapOptional("LinkEditData", Object.LinkEdit);
113 
114   if(!Object.DWARF.isEmpty() || !IO.outputting())
115     IO.mapOptional("DWARF", Object.DWARF);
116 
117   if (IO.getContext() == &Object)
118     IO.setContext(nullptr);
119 }
120 
121 void MappingTraits<MachOYAML::FatHeader>::mapping(
122     IO &IO, MachOYAML::FatHeader &FatHeader) {
123   IO.mapRequired("magic", FatHeader.magic);
124   IO.mapRequired("nfat_arch", FatHeader.nfat_arch);
125 }
126 
127 void MappingTraits<MachOYAML::FatArch>::mapping(IO &IO,
128                                                 MachOYAML::FatArch &FatArch) {
129   IO.mapRequired("cputype", FatArch.cputype);
130   IO.mapRequired("cpusubtype", FatArch.cpusubtype);
131   IO.mapRequired("offset", FatArch.offset);
132   IO.mapRequired("size", FatArch.size);
133   IO.mapRequired("align", FatArch.align);
134   IO.mapOptional("reserved", FatArch.reserved,
135                  static_cast<llvm::yaml::Hex32>(0));
136 }
137 
138 void MappingTraits<MachOYAML::UniversalBinary>::mapping(
139     IO &IO, MachOYAML::UniversalBinary &UniversalBinary) {
140   if (!IO.getContext()) {
141     IO.setContext(&UniversalBinary);
142     IO.mapTag("!fat-mach-o", true);
143   }
144   IO.mapRequired("FatHeader", UniversalBinary.Header);
145   IO.mapRequired("FatArchs", UniversalBinary.FatArchs);
146   IO.mapRequired("Slices", UniversalBinary.Slices);
147 
148   if (IO.getContext() == &UniversalBinary)
149     IO.setContext(nullptr);
150 }
151 
152 void MappingTraits<MachOYAML::LinkEditData>::mapping(
153     IO &IO, MachOYAML::LinkEditData &LinkEditData) {
154   IO.mapOptional("RebaseOpcodes", LinkEditData.RebaseOpcodes);
155   IO.mapOptional("BindOpcodes", LinkEditData.BindOpcodes);
156   IO.mapOptional("WeakBindOpcodes", LinkEditData.WeakBindOpcodes);
157   IO.mapOptional("LazyBindOpcodes", LinkEditData.LazyBindOpcodes);
158   if (!LinkEditData.ExportTrie.Children.empty() || !IO.outputting())
159     IO.mapOptional("ExportTrie", LinkEditData.ExportTrie);
160   IO.mapOptional("NameList", LinkEditData.NameList);
161   IO.mapOptional("StringTable", LinkEditData.StringTable);
162 }
163 
164 void MappingTraits<MachOYAML::RebaseOpcode>::mapping(
165     IO &IO, MachOYAML::RebaseOpcode &RebaseOpcode) {
166   IO.mapRequired("Opcode", RebaseOpcode.Opcode);
167   IO.mapRequired("Imm", RebaseOpcode.Imm);
168   IO.mapOptional("ExtraData", RebaseOpcode.ExtraData);
169 }
170 
171 void MappingTraits<MachOYAML::BindOpcode>::mapping(
172     IO &IO, MachOYAML::BindOpcode &BindOpcode) {
173   IO.mapRequired("Opcode", BindOpcode.Opcode);
174   IO.mapRequired("Imm", BindOpcode.Imm);
175   IO.mapOptional("ULEBExtraData", BindOpcode.ULEBExtraData);
176   IO.mapOptional("SLEBExtraData", BindOpcode.SLEBExtraData);
177   IO.mapOptional("Symbol", BindOpcode.Symbol);
178 }
179 
180 void MappingTraits<MachOYAML::ExportEntry>::mapping(
181     IO &IO, MachOYAML::ExportEntry &ExportEntry) {
182   IO.mapRequired("TerminalSize", ExportEntry.TerminalSize);
183   IO.mapOptional("NodeOffset", ExportEntry.NodeOffset);
184   IO.mapOptional("Name", ExportEntry.Name);
185   IO.mapOptional("Flags", ExportEntry.Flags);
186   IO.mapOptional("Address", ExportEntry.Address);
187   IO.mapOptional("Other", ExportEntry.Other);
188   IO.mapOptional("ImportName", ExportEntry.ImportName);
189   IO.mapOptional("Children", ExportEntry.Children);
190 }
191 
192 void MappingTraits<MachOYAML::NListEntry>::mapping(
193     IO &IO, MachOYAML::NListEntry &NListEntry) {
194   IO.mapRequired("n_strx", NListEntry.n_strx);
195   IO.mapRequired("n_type", NListEntry.n_type);
196   IO.mapRequired("n_sect", NListEntry.n_sect);
197   IO.mapRequired("n_desc", NListEntry.n_desc);
198   IO.mapRequired("n_value", NListEntry.n_value);
199 }
200 
201 template <typename StructType>
202 void mapLoadCommandData(IO &IO, MachOYAML::LoadCommand &LoadCommand) {}
203 
204 template <>
205 void mapLoadCommandData<MachO::segment_command>(
206     IO &IO, MachOYAML::LoadCommand &LoadCommand) {
207   IO.mapOptional("Sections", LoadCommand.Sections);
208 }
209 
210 template <>
211 void mapLoadCommandData<MachO::segment_command_64>(
212     IO &IO, MachOYAML::LoadCommand &LoadCommand) {
213   IO.mapOptional("Sections", LoadCommand.Sections);
214 }
215 
216 template <>
217 void mapLoadCommandData<MachO::dylib_command>(
218     IO &IO, MachOYAML::LoadCommand &LoadCommand) {
219   IO.mapOptional("PayloadString", LoadCommand.PayloadString);
220 }
221 
222 template <>
223 void mapLoadCommandData<MachO::rpath_command>(
224     IO &IO, MachOYAML::LoadCommand &LoadCommand) {
225   IO.mapOptional("PayloadString", LoadCommand.PayloadString);
226 }
227 
228 template <>
229 void mapLoadCommandData<MachO::dylinker_command>(
230     IO &IO, MachOYAML::LoadCommand &LoadCommand) {
231   IO.mapOptional("PayloadString", LoadCommand.PayloadString);
232 }
233 
234 template <>
235 void mapLoadCommandData<MachO::build_version_command>(
236     IO &IO, MachOYAML::LoadCommand &LoadCommand) {
237   IO.mapOptional("Tools", LoadCommand.Tools);
238 }
239 
240 void MappingTraits<MachOYAML::LoadCommand>::mapping(
241     IO &IO, MachOYAML::LoadCommand &LoadCommand) {
242   MachO::LoadCommandType TempCmd = static_cast<MachO::LoadCommandType>(
243       LoadCommand.Data.load_command_data.cmd);
244   IO.mapRequired("cmd", TempCmd);
245   LoadCommand.Data.load_command_data.cmd = TempCmd;
246   IO.mapRequired("cmdsize", LoadCommand.Data.load_command_data.cmdsize);
247 
248 #define HANDLE_LOAD_COMMAND(LCName, LCValue, LCStruct)                         \
249   case MachO::LCName:                                                          \
250     MappingTraits<MachO::LCStruct>::mapping(IO,                                \
251                                             LoadCommand.Data.LCStruct##_data); \
252     mapLoadCommandData<MachO::LCStruct>(IO, LoadCommand);                      \
253     break;
254 
255   switch (LoadCommand.Data.load_command_data.cmd) {
256 #include "llvm/BinaryFormat/MachO.def"
257   }
258   IO.mapOptional("PayloadBytes", LoadCommand.PayloadBytes);
259   IO.mapOptional("ZeroPadBytes", LoadCommand.ZeroPadBytes, (uint64_t)0ull);
260 }
261 
262 void MappingTraits<MachO::dyld_info_command>::mapping(
263     IO &IO, MachO::dyld_info_command &LoadCommand) {
264   IO.mapRequired("rebase_off", LoadCommand.rebase_off);
265   IO.mapRequired("rebase_size", LoadCommand.rebase_size);
266   IO.mapRequired("bind_off", LoadCommand.bind_off);
267   IO.mapRequired("bind_size", LoadCommand.bind_size);
268   IO.mapRequired("weak_bind_off", LoadCommand.weak_bind_off);
269   IO.mapRequired("weak_bind_size", LoadCommand.weak_bind_size);
270   IO.mapRequired("lazy_bind_off", LoadCommand.lazy_bind_off);
271   IO.mapRequired("lazy_bind_size", LoadCommand.lazy_bind_size);
272   IO.mapRequired("export_off", LoadCommand.export_off);
273   IO.mapRequired("export_size", LoadCommand.export_size);
274 }
275 
276 void MappingTraits<MachOYAML::Section>::mapping(IO &IO,
277                                                 MachOYAML::Section &Section) {
278   IO.mapRequired("sectname", Section.sectname);
279   IO.mapRequired("segname", Section.segname);
280   IO.mapRequired("addr", Section.addr);
281   IO.mapRequired("size", Section.size);
282   IO.mapRequired("offset", Section.offset);
283   IO.mapRequired("align", Section.align);
284   IO.mapRequired("reloff", Section.reloff);
285   IO.mapRequired("nreloc", Section.nreloc);
286   IO.mapRequired("flags", Section.flags);
287   IO.mapRequired("reserved1", Section.reserved1);
288   IO.mapRequired("reserved2", Section.reserved2);
289   IO.mapOptional("reserved3", Section.reserved3);
290 }
291 
292 void MappingTraits<MachO::build_tool_version>::mapping(
293     IO &IO, MachO::build_tool_version &tool) {
294   IO.mapRequired("tool", tool.tool);
295   IO.mapRequired("version", tool.version);
296 }
297 
298 void MappingTraits<MachO::dylib>::mapping(IO &IO, MachO::dylib &DylibStruct) {
299   IO.mapRequired("name", DylibStruct.name);
300   IO.mapRequired("timestamp", DylibStruct.timestamp);
301   IO.mapRequired("current_version", DylibStruct.current_version);
302   IO.mapRequired("compatibility_version", DylibStruct.compatibility_version);
303 }
304 
305 void MappingTraits<MachO::dylib_command>::mapping(
306     IO &IO, MachO::dylib_command &LoadCommand) {
307   IO.mapRequired("dylib", LoadCommand.dylib);
308 }
309 
310 void MappingTraits<MachO::dylinker_command>::mapping(
311     IO &IO, MachO::dylinker_command &LoadCommand) {
312   IO.mapRequired("name", LoadCommand.name);
313 }
314 
315 void MappingTraits<MachO::dysymtab_command>::mapping(
316     IO &IO, MachO::dysymtab_command &LoadCommand) {
317   IO.mapRequired("ilocalsym", LoadCommand.ilocalsym);
318   IO.mapRequired("nlocalsym", LoadCommand.nlocalsym);
319   IO.mapRequired("iextdefsym", LoadCommand.iextdefsym);
320   IO.mapRequired("nextdefsym", LoadCommand.nextdefsym);
321   IO.mapRequired("iundefsym", LoadCommand.iundefsym);
322   IO.mapRequired("nundefsym", LoadCommand.nundefsym);
323   IO.mapRequired("tocoff", LoadCommand.tocoff);
324   IO.mapRequired("ntoc", LoadCommand.ntoc);
325   IO.mapRequired("modtaboff", LoadCommand.modtaboff);
326   IO.mapRequired("nmodtab", LoadCommand.nmodtab);
327   IO.mapRequired("extrefsymoff", LoadCommand.extrefsymoff);
328   IO.mapRequired("nextrefsyms", LoadCommand.nextrefsyms);
329   IO.mapRequired("indirectsymoff", LoadCommand.indirectsymoff);
330   IO.mapRequired("nindirectsyms", LoadCommand.nindirectsyms);
331   IO.mapRequired("extreloff", LoadCommand.extreloff);
332   IO.mapRequired("nextrel", LoadCommand.nextrel);
333   IO.mapRequired("locreloff", LoadCommand.locreloff);
334   IO.mapRequired("nlocrel", LoadCommand.nlocrel);
335 }
336 
337 void MappingTraits<MachO::encryption_info_command>::mapping(
338     IO &IO, MachO::encryption_info_command &LoadCommand) {
339   IO.mapRequired("cryptoff", LoadCommand.cryptoff);
340   IO.mapRequired("cryptsize", LoadCommand.cryptsize);
341   IO.mapRequired("cryptid", LoadCommand.cryptid);
342 }
343 
344 void MappingTraits<MachO::encryption_info_command_64>::mapping(
345     IO &IO, MachO::encryption_info_command_64 &LoadCommand) {
346   IO.mapRequired("cryptoff", LoadCommand.cryptoff);
347   IO.mapRequired("cryptsize", LoadCommand.cryptsize);
348   IO.mapRequired("cryptid", LoadCommand.cryptid);
349   IO.mapRequired("pad", LoadCommand.pad);
350 }
351 
352 void MappingTraits<MachO::entry_point_command>::mapping(
353     IO &IO, MachO::entry_point_command &LoadCommand) {
354   IO.mapRequired("entryoff", LoadCommand.entryoff);
355   IO.mapRequired("stacksize", LoadCommand.stacksize);
356 }
357 
358 void MappingTraits<MachO::fvmfile_command>::mapping(
359     IO &IO, MachO::fvmfile_command &LoadCommand) {
360   IO.mapRequired("name", LoadCommand.name);
361   IO.mapRequired("header_addr", LoadCommand.header_addr);
362 }
363 
364 void MappingTraits<MachO::fvmlib>::mapping(IO &IO, MachO::fvmlib &FVMLib) {
365   IO.mapRequired("name", FVMLib.name);
366   IO.mapRequired("minor_version", FVMLib.minor_version);
367   IO.mapRequired("header_addr", FVMLib.header_addr);
368 }
369 
370 void MappingTraits<MachO::fvmlib_command>::mapping(
371     IO &IO, MachO::fvmlib_command &LoadCommand) {
372   IO.mapRequired("fvmlib", LoadCommand.fvmlib);
373 }
374 
375 void MappingTraits<MachO::ident_command>::mapping(
376     IO &IO, MachO::ident_command &LoadCommand) {}
377 
378 void MappingTraits<MachO::linkedit_data_command>::mapping(
379     IO &IO, MachO::linkedit_data_command &LoadCommand) {
380   IO.mapRequired("dataoff", LoadCommand.dataoff);
381   IO.mapRequired("datasize", LoadCommand.datasize);
382 }
383 
384 void MappingTraits<MachO::linker_option_command>::mapping(
385     IO &IO, MachO::linker_option_command &LoadCommand) {
386   IO.mapRequired("count", LoadCommand.count);
387 }
388 
389 void MappingTraits<MachO::prebind_cksum_command>::mapping(
390     IO &IO, MachO::prebind_cksum_command &LoadCommand) {
391   IO.mapRequired("cksum", LoadCommand.cksum);
392 }
393 
394 void MappingTraits<MachO::load_command>::mapping(
395     IO &IO, MachO::load_command &LoadCommand) {}
396 
397 void MappingTraits<MachO::prebound_dylib_command>::mapping(
398     IO &IO, MachO::prebound_dylib_command &LoadCommand) {
399   IO.mapRequired("name", LoadCommand.name);
400   IO.mapRequired("nmodules", LoadCommand.nmodules);
401   IO.mapRequired("linked_modules", LoadCommand.linked_modules);
402 }
403 
404 void MappingTraits<MachO::routines_command>::mapping(
405     IO &IO, MachO::routines_command &LoadCommand) {
406   IO.mapRequired("init_address", LoadCommand.init_address);
407   IO.mapRequired("init_module", LoadCommand.init_module);
408   IO.mapRequired("reserved1", LoadCommand.reserved1);
409   IO.mapRequired("reserved2", LoadCommand.reserved2);
410   IO.mapRequired("reserved3", LoadCommand.reserved3);
411   IO.mapRequired("reserved4", LoadCommand.reserved4);
412   IO.mapRequired("reserved5", LoadCommand.reserved5);
413   IO.mapRequired("reserved6", LoadCommand.reserved6);
414 }
415 
416 void MappingTraits<MachO::routines_command_64>::mapping(
417     IO &IO, MachO::routines_command_64 &LoadCommand) {
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   IO.mapRequired("path", LoadCommand.path);
431 }
432 
433 void MappingTraits<MachO::section>::mapping(IO &IO, MachO::section &Section) {
434   IO.mapRequired("sectname", Section.sectname);
435   IO.mapRequired("segname", Section.segname);
436   IO.mapRequired("addr", Section.addr);
437   IO.mapRequired("size", Section.size);
438   IO.mapRequired("offset", Section.offset);
439   IO.mapRequired("align", Section.align);
440   IO.mapRequired("reloff", Section.reloff);
441   IO.mapRequired("nreloc", Section.nreloc);
442   IO.mapRequired("flags", Section.flags);
443   IO.mapRequired("reserved1", Section.reserved1);
444   IO.mapRequired("reserved2", Section.reserved2);
445 }
446 
447 void MappingTraits<MachO::section_64>::mapping(IO &IO,
448                                                MachO::section_64 &Section) {
449   IO.mapRequired("sectname", Section.sectname);
450   IO.mapRequired("segname", Section.segname);
451   IO.mapRequired("addr", Section.addr);
452   IO.mapRequired("size", Section.size);
453   IO.mapRequired("offset", Section.offset);
454   IO.mapRequired("align", Section.align);
455   IO.mapRequired("reloff", Section.reloff);
456   IO.mapRequired("nreloc", Section.nreloc);
457   IO.mapRequired("flags", Section.flags);
458   IO.mapRequired("reserved1", Section.reserved1);
459   IO.mapRequired("reserved2", Section.reserved2);
460   IO.mapRequired("reserved3", Section.reserved3);
461 }
462 
463 void MappingTraits<MachO::segment_command>::mapping(
464     IO &IO, MachO::segment_command &LoadCommand) {
465   IO.mapRequired("segname", LoadCommand.segname);
466   IO.mapRequired("vmaddr", LoadCommand.vmaddr);
467   IO.mapRequired("vmsize", LoadCommand.vmsize);
468   IO.mapRequired("fileoff", LoadCommand.fileoff);
469   IO.mapRequired("filesize", LoadCommand.filesize);
470   IO.mapRequired("maxprot", LoadCommand.maxprot);
471   IO.mapRequired("initprot", LoadCommand.initprot);
472   IO.mapRequired("nsects", LoadCommand.nsects);
473   IO.mapRequired("flags", LoadCommand.flags);
474 }
475 
476 void MappingTraits<MachO::segment_command_64>::mapping(
477     IO &IO, MachO::segment_command_64 &LoadCommand) {
478   IO.mapRequired("segname", LoadCommand.segname);
479   IO.mapRequired("vmaddr", LoadCommand.vmaddr);
480   IO.mapRequired("vmsize", LoadCommand.vmsize);
481   IO.mapRequired("fileoff", LoadCommand.fileoff);
482   IO.mapRequired("filesize", LoadCommand.filesize);
483   IO.mapRequired("maxprot", LoadCommand.maxprot);
484   IO.mapRequired("initprot", LoadCommand.initprot);
485   IO.mapRequired("nsects", LoadCommand.nsects);
486   IO.mapRequired("flags", LoadCommand.flags);
487 }
488 
489 void MappingTraits<MachO::source_version_command>::mapping(
490     IO &IO, MachO::source_version_command &LoadCommand) {
491   IO.mapRequired("version", LoadCommand.version);
492 }
493 
494 void MappingTraits<MachO::sub_client_command>::mapping(
495     IO &IO, MachO::sub_client_command &LoadCommand) {
496   IO.mapRequired("client", LoadCommand.client);
497 }
498 
499 void MappingTraits<MachO::sub_framework_command>::mapping(
500     IO &IO, MachO::sub_framework_command &LoadCommand) {
501   IO.mapRequired("umbrella", LoadCommand.umbrella);
502 }
503 
504 void MappingTraits<MachO::sub_library_command>::mapping(
505     IO &IO, MachO::sub_library_command &LoadCommand) {
506   IO.mapRequired("sub_library", LoadCommand.sub_library);
507 }
508 
509 void MappingTraits<MachO::sub_umbrella_command>::mapping(
510     IO &IO, MachO::sub_umbrella_command &LoadCommand) {
511   IO.mapRequired("sub_umbrella", LoadCommand.sub_umbrella);
512 }
513 
514 void MappingTraits<MachO::symseg_command>::mapping(
515     IO &IO, MachO::symseg_command &LoadCommand) {
516   IO.mapRequired("offset", LoadCommand.offset);
517   IO.mapRequired("size", LoadCommand.size);
518 }
519 
520 void MappingTraits<MachO::symtab_command>::mapping(
521     IO &IO, MachO::symtab_command &LoadCommand) {
522   IO.mapRequired("symoff", LoadCommand.symoff);
523   IO.mapRequired("nsyms", LoadCommand.nsyms);
524   IO.mapRequired("stroff", LoadCommand.stroff);
525   IO.mapRequired("strsize", LoadCommand.strsize);
526 }
527 
528 void MappingTraits<MachO::thread_command>::mapping(
529     IO &IO, MachO::thread_command &LoadCommand) {}
530 
531 void MappingTraits<MachO::twolevel_hints_command>::mapping(
532     IO &IO, MachO::twolevel_hints_command &LoadCommand) {
533   IO.mapRequired("offset", LoadCommand.offset);
534   IO.mapRequired("nhints", LoadCommand.nhints);
535 }
536 
537 void MappingTraits<MachO::uuid_command>::mapping(
538     IO &IO, MachO::uuid_command &LoadCommand) {
539   IO.mapRequired("uuid", LoadCommand.uuid);
540 }
541 
542 void MappingTraits<MachO::version_min_command>::mapping(
543     IO &IO, MachO::version_min_command &LoadCommand) {
544   IO.mapRequired("version", LoadCommand.version);
545   IO.mapRequired("sdk", LoadCommand.sdk);
546 }
547 
548 void MappingTraits<MachO::note_command>::mapping(
549     IO &IO, MachO::note_command &LoadCommand) {
550   IO.mapRequired("data_owner", LoadCommand.data_owner);
551   IO.mapRequired("offset", LoadCommand.offset);
552   IO.mapRequired("size", LoadCommand.size);
553 }
554 
555 void MappingTraits<MachO::build_version_command>::mapping(
556     IO &IO, MachO::build_version_command &LoadCommand) {
557   IO.mapRequired("platform", LoadCommand.platform);
558   IO.mapRequired("minos", LoadCommand.minos);
559   IO.mapRequired("sdk", LoadCommand.sdk);
560   IO.mapRequired("ntools", LoadCommand.ntools);
561 }
562 
563 } // end namespace yaml
564 
565 } // end namespace llvm
566