xref: /freebsd/contrib/llvm-project/llvm/lib/ObjectYAML/MachOYAML.cpp (revision 480093f4440d54b30b3025afeac24b48f2ba7a2e) 
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   IO.mapOptional("content", Section.content);
291 }
292 
293 StringRef
294 MappingTraits<MachOYAML::Section>::validate(IO &IO,
295                                             MachOYAML::Section &Section) {
296   if (Section.content && Section.size < Section.content->binary_size())
297     return "Section size must be greater than or equal to the content size";
298   return {};
299 }
300 
301 void MappingTraits<MachO::build_tool_version>::mapping(
302     IO &IO, MachO::build_tool_version &tool) {
303   IO.mapRequired("tool", tool.tool);
304   IO.mapRequired("version", tool.version);
305 }
306 
307 void MappingTraits<MachO::dylib>::mapping(IO &IO, MachO::dylib &DylibStruct) {
308   IO.mapRequired("name", DylibStruct.name);
309   IO.mapRequired("timestamp", DylibStruct.timestamp);
310   IO.mapRequired("current_version", DylibStruct.current_version);
311   IO.mapRequired("compatibility_version", DylibStruct.compatibility_version);
312 }
313 
314 void MappingTraits<MachO::dylib_command>::mapping(
315     IO &IO, MachO::dylib_command &LoadCommand) {
316   IO.mapRequired("dylib", LoadCommand.dylib);
317 }
318 
319 void MappingTraits<MachO::dylinker_command>::mapping(
320     IO &IO, MachO::dylinker_command &LoadCommand) {
321   IO.mapRequired("name", LoadCommand.name);
322 }
323 
324 void MappingTraits<MachO::dysymtab_command>::mapping(
325     IO &IO, MachO::dysymtab_command &LoadCommand) {
326   IO.mapRequired("ilocalsym", LoadCommand.ilocalsym);
327   IO.mapRequired("nlocalsym", LoadCommand.nlocalsym);
328   IO.mapRequired("iextdefsym", LoadCommand.iextdefsym);
329   IO.mapRequired("nextdefsym", LoadCommand.nextdefsym);
330   IO.mapRequired("iundefsym", LoadCommand.iundefsym);
331   IO.mapRequired("nundefsym", LoadCommand.nundefsym);
332   IO.mapRequired("tocoff", LoadCommand.tocoff);
333   IO.mapRequired("ntoc", LoadCommand.ntoc);
334   IO.mapRequired("modtaboff", LoadCommand.modtaboff);
335   IO.mapRequired("nmodtab", LoadCommand.nmodtab);
336   IO.mapRequired("extrefsymoff", LoadCommand.extrefsymoff);
337   IO.mapRequired("nextrefsyms", LoadCommand.nextrefsyms);
338   IO.mapRequired("indirectsymoff", LoadCommand.indirectsymoff);
339   IO.mapRequired("nindirectsyms", LoadCommand.nindirectsyms);
340   IO.mapRequired("extreloff", LoadCommand.extreloff);
341   IO.mapRequired("nextrel", LoadCommand.nextrel);
342   IO.mapRequired("locreloff", LoadCommand.locreloff);
343   IO.mapRequired("nlocrel", LoadCommand.nlocrel);
344 }
345 
346 void MappingTraits<MachO::encryption_info_command>::mapping(
347     IO &IO, MachO::encryption_info_command &LoadCommand) {
348   IO.mapRequired("cryptoff", LoadCommand.cryptoff);
349   IO.mapRequired("cryptsize", LoadCommand.cryptsize);
350   IO.mapRequired("cryptid", LoadCommand.cryptid);
351 }
352 
353 void MappingTraits<MachO::encryption_info_command_64>::mapping(
354     IO &IO, MachO::encryption_info_command_64 &LoadCommand) {
355   IO.mapRequired("cryptoff", LoadCommand.cryptoff);
356   IO.mapRequired("cryptsize", LoadCommand.cryptsize);
357   IO.mapRequired("cryptid", LoadCommand.cryptid);
358   IO.mapRequired("pad", LoadCommand.pad);
359 }
360 
361 void MappingTraits<MachO::entry_point_command>::mapping(
362     IO &IO, MachO::entry_point_command &LoadCommand) {
363   IO.mapRequired("entryoff", LoadCommand.entryoff);
364   IO.mapRequired("stacksize", LoadCommand.stacksize);
365 }
366 
367 void MappingTraits<MachO::fvmfile_command>::mapping(
368     IO &IO, MachO::fvmfile_command &LoadCommand) {
369   IO.mapRequired("name", LoadCommand.name);
370   IO.mapRequired("header_addr", LoadCommand.header_addr);
371 }
372 
373 void MappingTraits<MachO::fvmlib>::mapping(IO &IO, MachO::fvmlib &FVMLib) {
374   IO.mapRequired("name", FVMLib.name);
375   IO.mapRequired("minor_version", FVMLib.minor_version);
376   IO.mapRequired("header_addr", FVMLib.header_addr);
377 }
378 
379 void MappingTraits<MachO::fvmlib_command>::mapping(
380     IO &IO, MachO::fvmlib_command &LoadCommand) {
381   IO.mapRequired("fvmlib", LoadCommand.fvmlib);
382 }
383 
384 void MappingTraits<MachO::ident_command>::mapping(
385     IO &IO, MachO::ident_command &LoadCommand) {}
386 
387 void MappingTraits<MachO::linkedit_data_command>::mapping(
388     IO &IO, MachO::linkedit_data_command &LoadCommand) {
389   IO.mapRequired("dataoff", LoadCommand.dataoff);
390   IO.mapRequired("datasize", LoadCommand.datasize);
391 }
392 
393 void MappingTraits<MachO::linker_option_command>::mapping(
394     IO &IO, MachO::linker_option_command &LoadCommand) {
395   IO.mapRequired("count", LoadCommand.count);
396 }
397 
398 void MappingTraits<MachO::prebind_cksum_command>::mapping(
399     IO &IO, MachO::prebind_cksum_command &LoadCommand) {
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   IO.mapRequired("name", LoadCommand.name);
409   IO.mapRequired("nmodules", LoadCommand.nmodules);
410   IO.mapRequired("linked_modules", LoadCommand.linked_modules);
411 }
412 
413 void MappingTraits<MachO::routines_command>::mapping(
414     IO &IO, MachO::routines_command &LoadCommand) {
415   IO.mapRequired("init_address", LoadCommand.init_address);
416   IO.mapRequired("init_module", LoadCommand.init_module);
417   IO.mapRequired("reserved1", LoadCommand.reserved1);
418   IO.mapRequired("reserved2", LoadCommand.reserved2);
419   IO.mapRequired("reserved3", LoadCommand.reserved3);
420   IO.mapRequired("reserved4", LoadCommand.reserved4);
421   IO.mapRequired("reserved5", LoadCommand.reserved5);
422   IO.mapRequired("reserved6", LoadCommand.reserved6);
423 }
424 
425 void MappingTraits<MachO::routines_command_64>::mapping(
426     IO &IO, MachO::routines_command_64 &LoadCommand) {
427   IO.mapRequired("init_address", LoadCommand.init_address);
428   IO.mapRequired("init_module", LoadCommand.init_module);
429   IO.mapRequired("reserved1", LoadCommand.reserved1);
430   IO.mapRequired("reserved2", LoadCommand.reserved2);
431   IO.mapRequired("reserved3", LoadCommand.reserved3);
432   IO.mapRequired("reserved4", LoadCommand.reserved4);
433   IO.mapRequired("reserved5", LoadCommand.reserved5);
434   IO.mapRequired("reserved6", LoadCommand.reserved6);
435 }
436 
437 void MappingTraits<MachO::rpath_command>::mapping(
438     IO &IO, MachO::rpath_command &LoadCommand) {
439   IO.mapRequired("path", LoadCommand.path);
440 }
441 
442 void MappingTraits<MachO::section>::mapping(IO &IO, MachO::section &Section) {
443   IO.mapRequired("sectname", Section.sectname);
444   IO.mapRequired("segname", Section.segname);
445   IO.mapRequired("addr", Section.addr);
446   IO.mapRequired("size", Section.size);
447   IO.mapRequired("offset", Section.offset);
448   IO.mapRequired("align", Section.align);
449   IO.mapRequired("reloff", Section.reloff);
450   IO.mapRequired("nreloc", Section.nreloc);
451   IO.mapRequired("flags", Section.flags);
452   IO.mapRequired("reserved1", Section.reserved1);
453   IO.mapRequired("reserved2", Section.reserved2);
454 }
455 
456 void MappingTraits<MachO::section_64>::mapping(IO &IO,
457                                                MachO::section_64 &Section) {
458   IO.mapRequired("sectname", Section.sectname);
459   IO.mapRequired("segname", Section.segname);
460   IO.mapRequired("addr", Section.addr);
461   IO.mapRequired("size", Section.size);
462   IO.mapRequired("offset", Section.offset);
463   IO.mapRequired("align", Section.align);
464   IO.mapRequired("reloff", Section.reloff);
465   IO.mapRequired("nreloc", Section.nreloc);
466   IO.mapRequired("flags", Section.flags);
467   IO.mapRequired("reserved1", Section.reserved1);
468   IO.mapRequired("reserved2", Section.reserved2);
469   IO.mapRequired("reserved3", Section.reserved3);
470 }
471 
472 void MappingTraits<MachO::segment_command>::mapping(
473     IO &IO, MachO::segment_command &LoadCommand) {
474   IO.mapRequired("segname", LoadCommand.segname);
475   IO.mapRequired("vmaddr", LoadCommand.vmaddr);
476   IO.mapRequired("vmsize", LoadCommand.vmsize);
477   IO.mapRequired("fileoff", LoadCommand.fileoff);
478   IO.mapRequired("filesize", LoadCommand.filesize);
479   IO.mapRequired("maxprot", LoadCommand.maxprot);
480   IO.mapRequired("initprot", LoadCommand.initprot);
481   IO.mapRequired("nsects", LoadCommand.nsects);
482   IO.mapRequired("flags", LoadCommand.flags);
483 }
484 
485 void MappingTraits<MachO::segment_command_64>::mapping(
486     IO &IO, MachO::segment_command_64 &LoadCommand) {
487   IO.mapRequired("segname", LoadCommand.segname);
488   IO.mapRequired("vmaddr", LoadCommand.vmaddr);
489   IO.mapRequired("vmsize", LoadCommand.vmsize);
490   IO.mapRequired("fileoff", LoadCommand.fileoff);
491   IO.mapRequired("filesize", LoadCommand.filesize);
492   IO.mapRequired("maxprot", LoadCommand.maxprot);
493   IO.mapRequired("initprot", LoadCommand.initprot);
494   IO.mapRequired("nsects", LoadCommand.nsects);
495   IO.mapRequired("flags", LoadCommand.flags);
496 }
497 
498 void MappingTraits<MachO::source_version_command>::mapping(
499     IO &IO, MachO::source_version_command &LoadCommand) {
500   IO.mapRequired("version", LoadCommand.version);
501 }
502 
503 void MappingTraits<MachO::sub_client_command>::mapping(
504     IO &IO, MachO::sub_client_command &LoadCommand) {
505   IO.mapRequired("client", LoadCommand.client);
506 }
507 
508 void MappingTraits<MachO::sub_framework_command>::mapping(
509     IO &IO, MachO::sub_framework_command &LoadCommand) {
510   IO.mapRequired("umbrella", LoadCommand.umbrella);
511 }
512 
513 void MappingTraits<MachO::sub_library_command>::mapping(
514     IO &IO, MachO::sub_library_command &LoadCommand) {
515   IO.mapRequired("sub_library", LoadCommand.sub_library);
516 }
517 
518 void MappingTraits<MachO::sub_umbrella_command>::mapping(
519     IO &IO, MachO::sub_umbrella_command &LoadCommand) {
520   IO.mapRequired("sub_umbrella", LoadCommand.sub_umbrella);
521 }
522 
523 void MappingTraits<MachO::symseg_command>::mapping(
524     IO &IO, MachO::symseg_command &LoadCommand) {
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   IO.mapRequired("symoff", LoadCommand.symoff);
532   IO.mapRequired("nsyms", LoadCommand.nsyms);
533   IO.mapRequired("stroff", LoadCommand.stroff);
534   IO.mapRequired("strsize", LoadCommand.strsize);
535 }
536 
537 void MappingTraits<MachO::thread_command>::mapping(
538     IO &IO, MachO::thread_command &LoadCommand) {}
539 
540 void MappingTraits<MachO::twolevel_hints_command>::mapping(
541     IO &IO, MachO::twolevel_hints_command &LoadCommand) {
542   IO.mapRequired("offset", LoadCommand.offset);
543   IO.mapRequired("nhints", LoadCommand.nhints);
544 }
545 
546 void MappingTraits<MachO::uuid_command>::mapping(
547     IO &IO, MachO::uuid_command &LoadCommand) {
548   IO.mapRequired("uuid", LoadCommand.uuid);
549 }
550 
551 void MappingTraits<MachO::version_min_command>::mapping(
552     IO &IO, MachO::version_min_command &LoadCommand) {
553   IO.mapRequired("version", LoadCommand.version);
554   IO.mapRequired("sdk", LoadCommand.sdk);
555 }
556 
557 void MappingTraits<MachO::note_command>::mapping(
558     IO &IO, MachO::note_command &LoadCommand) {
559   IO.mapRequired("data_owner", LoadCommand.data_owner);
560   IO.mapRequired("offset", LoadCommand.offset);
561   IO.mapRequired("size", LoadCommand.size);
562 }
563 
564 void MappingTraits<MachO::build_version_command>::mapping(
565     IO &IO, MachO::build_version_command &LoadCommand) {
566   IO.mapRequired("platform", LoadCommand.platform);
567   IO.mapRequired("minos", LoadCommand.minos);
568   IO.mapRequired("sdk", LoadCommand.sdk);
569   IO.mapRequired("ntools", LoadCommand.ntools);
570 }
571 
572 } // end namespace yaml
573 
574 } // end namespace llvm
575