xref: /freebsd/contrib/llvm-project/llvm/lib/DebugInfo/CodeView/SymbolDumper.cpp (revision 5f4c09dd85bff675e0ca63c55ea3c517e0fddfcc) 
1 //===-- SymbolDumper.cpp - CodeView symbol info dumper ----------*- C++ -*-===//
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 #include "llvm/DebugInfo/CodeView/SymbolDumper.h"
10 #include "llvm/ADT/StringRef.h"
11 #include "llvm/DebugInfo/CodeView/CVSymbolVisitor.h"
12 #include "llvm/DebugInfo/CodeView/DebugStringTableSubsection.h"
13 #include "llvm/DebugInfo/CodeView/EnumTables.h"
14 #include "llvm/DebugInfo/CodeView/SymbolDeserializer.h"
15 #include "llvm/DebugInfo/CodeView/SymbolDumpDelegate.h"
16 #include "llvm/DebugInfo/CodeView/SymbolRecord.h"
17 #include "llvm/DebugInfo/CodeView/SymbolVisitorCallbackPipeline.h"
18 #include "llvm/DebugInfo/CodeView/SymbolVisitorCallbacks.h"
19 #include "llvm/DebugInfo/CodeView/TypeIndex.h"
20 #include "llvm/Support/Error.h"
21 #include "llvm/Support/ScopedPrinter.h"
22 
23 using namespace llvm;
24 using namespace llvm::codeview;
25 
26 namespace {
27 /// Use this private dumper implementation to keep implementation details about
28 /// the visitor out of SymbolDumper.h.
29 class CVSymbolDumperImpl : public SymbolVisitorCallbacks {
30 public:
31   CVSymbolDumperImpl(TypeCollection &Types, SymbolDumpDelegate *ObjDelegate,
32                      ScopedPrinter &W, CPUType CPU, bool PrintRecordBytes)
33       : Types(Types), ObjDelegate(ObjDelegate), W(W), CompilationCPUType(CPU),
34         PrintRecordBytes(PrintRecordBytes), InFunctionScope(false) {}
35 
36 /// CVSymbolVisitor overrides.
37 #define SYMBOL_RECORD(EnumName, EnumVal, Name)                                 \
38   Error visitKnownRecord(CVSymbol &CVR, Name &Record) override;
39 #define SYMBOL_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName)
40 #include "llvm/DebugInfo/CodeView/CodeViewSymbols.def"
41 
42   Error visitSymbolBegin(CVSymbol &Record) override;
43   Error visitSymbolEnd(CVSymbol &Record) override;
44   Error visitUnknownSymbol(CVSymbol &Record) override;
45 
46   CPUType getCompilationCPUType() const { return CompilationCPUType; }
47 
48 private:
49   void printLocalVariableAddrRange(const LocalVariableAddrRange &Range,
50                                    uint32_t RelocationOffset);
51   void printLocalVariableAddrGap(ArrayRef<LocalVariableAddrGap> Gaps);
52   void printTypeIndex(StringRef FieldName, TypeIndex TI);
53 
54   TypeCollection &Types;
55   SymbolDumpDelegate *ObjDelegate;
56   ScopedPrinter &W;
57 
58   /// Save the machine or CPU type when dumping a compile symbols.
59   CPUType CompilationCPUType = CPUType::X64;
60 
61   bool PrintRecordBytes;
62   bool InFunctionScope;
63 };
64 }
65 
66 static StringRef getSymbolKindName(SymbolKind Kind) {
67   switch (Kind) {
68 #define SYMBOL_RECORD(EnumName, EnumVal, Name)                                 \
69   case EnumName:                                                               \
70     return #Name;
71 #include "llvm/DebugInfo/CodeView/CodeViewSymbols.def"
72   default:
73     break;
74   }
75   return "UnknownSym";
76 }
77 
78 void CVSymbolDumperImpl::printLocalVariableAddrRange(
79     const LocalVariableAddrRange &Range, uint32_t RelocationOffset) {
80   DictScope S(W, "LocalVariableAddrRange");
81   if (ObjDelegate)
82     ObjDelegate->printRelocatedField("OffsetStart", RelocationOffset,
83                                      Range.OffsetStart);
84   W.printHex("ISectStart", Range.ISectStart);
85   W.printHex("Range", Range.Range);
86 }
87 
88 void CVSymbolDumperImpl::printLocalVariableAddrGap(
89     ArrayRef<LocalVariableAddrGap> Gaps) {
90   for (auto &Gap : Gaps) {
91     ListScope S(W, "LocalVariableAddrGap");
92     W.printHex("GapStartOffset", Gap.GapStartOffset);
93     W.printHex("Range", Gap.Range);
94   }
95 }
96 
97 void CVSymbolDumperImpl::printTypeIndex(StringRef FieldName, TypeIndex TI) {
98   codeview::printTypeIndex(W, FieldName, TI, Types);
99 }
100 
101 Error CVSymbolDumperImpl::visitSymbolBegin(CVSymbol &CVR) {
102   W.startLine() << getSymbolKindName(CVR.kind());
103   W.getOStream() << " {\n";
104   W.indent();
105   W.printEnum("Kind", unsigned(CVR.kind()), getSymbolTypeNames());
106   return Error::success();
107 }
108 
109 Error CVSymbolDumperImpl::visitSymbolEnd(CVSymbol &CVR) {
110   if (PrintRecordBytes && ObjDelegate)
111     ObjDelegate->printBinaryBlockWithRelocs("SymData", CVR.content());
112 
113   W.unindent();
114   W.startLine() << "}\n";
115   return Error::success();
116 }
117 
118 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, BlockSym &Block) {
119   StringRef LinkageName;
120   W.printHex("PtrParent", Block.Parent);
121   W.printHex("PtrEnd", Block.End);
122   W.printHex("CodeSize", Block.CodeSize);
123   if (ObjDelegate) {
124     ObjDelegate->printRelocatedField("CodeOffset", Block.getRelocationOffset(),
125                                      Block.CodeOffset, &LinkageName);
126   }
127   W.printHex("Segment", Block.Segment);
128   W.printString("BlockName", Block.Name);
129   W.printString("LinkageName", LinkageName);
130   return Error::success();
131 }
132 
133 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, Thunk32Sym &Thunk) {
134   W.printString("Name", Thunk.Name);
135   W.printNumber("Parent", Thunk.Parent);
136   W.printNumber("End", Thunk.End);
137   W.printNumber("Next", Thunk.Next);
138   W.printNumber("Off", Thunk.Offset);
139   W.printNumber("Seg", Thunk.Segment);
140   W.printNumber("Len", Thunk.Length);
141   W.printEnum("Ordinal", uint8_t(Thunk.Thunk), getThunkOrdinalNames());
142   return Error::success();
143 }
144 
145 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
146                                            TrampolineSym &Tramp) {
147   W.printEnum("Type", uint16_t(Tramp.Type), getTrampolineNames());
148   W.printNumber("Size", Tramp.Size);
149   W.printNumber("ThunkOff", Tramp.ThunkOffset);
150   W.printNumber("TargetOff", Tramp.TargetOffset);
151   W.printNumber("ThunkSection", Tramp.ThunkSection);
152   W.printNumber("TargetSection", Tramp.TargetSection);
153   return Error::success();
154 }
155 
156 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, SectionSym &Section) {
157   W.printNumber("SectionNumber", Section.SectionNumber);
158   W.printNumber("Alignment", Section.Alignment);
159   W.printNumber("Rva", Section.Rva);
160   W.printNumber("Length", Section.Length);
161   W.printFlags("Characteristics", Section.Characteristics,
162                getImageSectionCharacteristicNames(),
163                COFF::SectionCharacteristics(0x00F00000));
164 
165   W.printString("Name", Section.Name);
166   return Error::success();
167 }
168 
169 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
170                                            CoffGroupSym &CoffGroup) {
171   W.printNumber("Size", CoffGroup.Size);
172   W.printFlags("Characteristics", CoffGroup.Characteristics,
173                getImageSectionCharacteristicNames(),
174                COFF::SectionCharacteristics(0x00F00000));
175   W.printNumber("Offset", CoffGroup.Offset);
176   W.printNumber("Segment", CoffGroup.Segment);
177   W.printString("Name", CoffGroup.Name);
178   return Error::success();
179 }
180 
181 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
182                                            BPRelativeSym &BPRel) {
183   W.printNumber("Offset", BPRel.Offset);
184   printTypeIndex("Type", BPRel.Type);
185   W.printString("VarName", BPRel.Name);
186   return Error::success();
187 }
188 
189 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
190                                            BuildInfoSym &BuildInfo) {
191   printTypeIndex("BuildId", BuildInfo.BuildId);
192   return Error::success();
193 }
194 
195 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
196                                            CallSiteInfoSym &CallSiteInfo) {
197   StringRef LinkageName;
198   if (ObjDelegate) {
199     ObjDelegate->printRelocatedField("CodeOffset",
200                                      CallSiteInfo.getRelocationOffset(),
201                                      CallSiteInfo.CodeOffset, &LinkageName);
202   }
203   W.printHex("Segment", CallSiteInfo.Segment);
204   printTypeIndex("Type", CallSiteInfo.Type);
205   if (!LinkageName.empty())
206     W.printString("LinkageName", LinkageName);
207   return Error::success();
208 }
209 
210 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
211                                            EnvBlockSym &EnvBlock) {
212   ListScope L(W, "Entries");
213   for (auto Entry : EnvBlock.Fields) {
214     W.printString(Entry);
215   }
216   return Error::success();
217 }
218 
219 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
220                                            FileStaticSym &FileStatic) {
221   printTypeIndex("Index", FileStatic.Index);
222   W.printNumber("ModFilenameOffset", FileStatic.ModFilenameOffset);
223   W.printFlags("Flags", uint16_t(FileStatic.Flags), getLocalFlagNames());
224   W.printString("Name", FileStatic.Name);
225   return Error::success();
226 }
227 
228 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, ExportSym &Export) {
229   W.printNumber("Ordinal", Export.Ordinal);
230   W.printFlags("Flags", uint16_t(Export.Flags), getExportSymFlagNames());
231   W.printString("Name", Export.Name);
232   return Error::success();
233 }
234 
235 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
236                                            Compile2Sym &Compile2) {
237   W.printEnum("Language", Compile2.getLanguage(), getSourceLanguageNames());
238   W.printFlags("Flags", Compile2.getFlags(), getCompileSym2FlagNames());
239   W.printEnum("Machine", unsigned(Compile2.Machine), getCPUTypeNames());
240   CompilationCPUType = Compile2.Machine;
241   std::string FrontendVersion;
242   {
243     raw_string_ostream Out(FrontendVersion);
244     Out << Compile2.VersionFrontendMajor << '.' << Compile2.VersionFrontendMinor
245         << '.' << Compile2.VersionFrontendBuild;
246   }
247   std::string BackendVersion;
248   {
249     raw_string_ostream Out(BackendVersion);
250     Out << Compile2.VersionBackendMajor << '.' << Compile2.VersionBackendMinor
251         << '.' << Compile2.VersionBackendBuild;
252   }
253   W.printString("FrontendVersion", FrontendVersion);
254   W.printString("BackendVersion", BackendVersion);
255   W.printString("VersionName", Compile2.Version);
256   return Error::success();
257 }
258 
259 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
260                                            Compile3Sym &Compile3) {
261   W.printEnum("Language", uint8_t(Compile3.getLanguage()), getSourceLanguageNames());
262   W.printFlags("Flags", uint32_t(Compile3.getFlags()),
263                getCompileSym3FlagNames());
264   W.printEnum("Machine", unsigned(Compile3.Machine), getCPUTypeNames());
265   CompilationCPUType = Compile3.Machine;
266   std::string FrontendVersion;
267   {
268     raw_string_ostream Out(FrontendVersion);
269     Out << Compile3.VersionFrontendMajor << '.' << Compile3.VersionFrontendMinor
270         << '.' << Compile3.VersionFrontendBuild << '.'
271         << Compile3.VersionFrontendQFE;
272   }
273   std::string BackendVersion;
274   {
275     raw_string_ostream Out(BackendVersion);
276     Out << Compile3.VersionBackendMajor << '.' << Compile3.VersionBackendMinor
277         << '.' << Compile3.VersionBackendBuild << '.'
278         << Compile3.VersionBackendQFE;
279   }
280   W.printString("FrontendVersion", FrontendVersion);
281   W.printString("BackendVersion", BackendVersion);
282   W.printString("VersionName", Compile3.Version);
283   return Error::success();
284 }
285 
286 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
287                                            ConstantSym &Constant) {
288   printTypeIndex("Type", Constant.Type);
289   W.printNumber("Value", Constant.Value);
290   W.printString("Name", Constant.Name);
291   return Error::success();
292 }
293 
294 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, DataSym &Data) {
295   StringRef LinkageName;
296   if (ObjDelegate) {
297     ObjDelegate->printRelocatedField("DataOffset", Data.getRelocationOffset(),
298                                      Data.DataOffset, &LinkageName);
299   }
300   printTypeIndex("Type", Data.Type);
301   W.printString("DisplayName", Data.Name);
302   if (!LinkageName.empty())
303     W.printString("LinkageName", LinkageName);
304   return Error::success();
305 }
306 
307 Error CVSymbolDumperImpl::visitKnownRecord(
308     CVSymbol &CVR,
309     DefRangeFramePointerRelFullScopeSym &DefRangeFramePointerRelFullScope) {
310   W.printNumber("Offset", DefRangeFramePointerRelFullScope.Offset);
311   return Error::success();
312 }
313 
314 Error CVSymbolDumperImpl::visitKnownRecord(
315     CVSymbol &CVR, DefRangeFramePointerRelSym &DefRangeFramePointerRel) {
316   W.printNumber("Offset", DefRangeFramePointerRel.Hdr.Offset);
317   printLocalVariableAddrRange(DefRangeFramePointerRel.Range,
318                               DefRangeFramePointerRel.getRelocationOffset());
319   printLocalVariableAddrGap(DefRangeFramePointerRel.Gaps);
320   return Error::success();
321 }
322 
323 Error CVSymbolDumperImpl::visitKnownRecord(
324     CVSymbol &CVR, DefRangeRegisterRelSym &DefRangeRegisterRel) {
325   W.printEnum("BaseRegister", uint16_t(DefRangeRegisterRel.Hdr.Register),
326               getRegisterNames(CompilationCPUType));
327   W.printBoolean("HasSpilledUDTMember",
328                  DefRangeRegisterRel.hasSpilledUDTMember());
329   W.printNumber("OffsetInParent", DefRangeRegisterRel.offsetInParent());
330   W.printNumber("BasePointerOffset", DefRangeRegisterRel.Hdr.BasePointerOffset);
331   printLocalVariableAddrRange(DefRangeRegisterRel.Range,
332                               DefRangeRegisterRel.getRelocationOffset());
333   printLocalVariableAddrGap(DefRangeRegisterRel.Gaps);
334   return Error::success();
335 }
336 
337 Error CVSymbolDumperImpl::visitKnownRecord(
338     CVSymbol &CVR, DefRangeRegisterSym &DefRangeRegister) {
339   W.printEnum("Register", uint16_t(DefRangeRegister.Hdr.Register),
340               getRegisterNames(CompilationCPUType));
341   W.printNumber("MayHaveNoName", DefRangeRegister.Hdr.MayHaveNoName);
342   printLocalVariableAddrRange(DefRangeRegister.Range,
343                               DefRangeRegister.getRelocationOffset());
344   printLocalVariableAddrGap(DefRangeRegister.Gaps);
345   return Error::success();
346 }
347 
348 Error CVSymbolDumperImpl::visitKnownRecord(
349     CVSymbol &CVR, DefRangeSubfieldRegisterSym &DefRangeSubfieldRegister) {
350   W.printEnum("Register", uint16_t(DefRangeSubfieldRegister.Hdr.Register),
351               getRegisterNames(CompilationCPUType));
352   W.printNumber("MayHaveNoName", DefRangeSubfieldRegister.Hdr.MayHaveNoName);
353   W.printNumber("OffsetInParent", DefRangeSubfieldRegister.Hdr.OffsetInParent);
354   printLocalVariableAddrRange(DefRangeSubfieldRegister.Range,
355                               DefRangeSubfieldRegister.getRelocationOffset());
356   printLocalVariableAddrGap(DefRangeSubfieldRegister.Gaps);
357   return Error::success();
358 }
359 
360 Error CVSymbolDumperImpl::visitKnownRecord(
361     CVSymbol &CVR, DefRangeSubfieldSym &DefRangeSubfield) {
362   if (ObjDelegate) {
363     DebugStringTableSubsectionRef Strings = ObjDelegate->getStringTable();
364     auto ExpectedProgram = Strings.getString(DefRangeSubfield.Program);
365     if (!ExpectedProgram) {
366       consumeError(ExpectedProgram.takeError());
367       return llvm::make_error<CodeViewError>(
368           "String table offset outside of bounds of String Table!");
369     }
370     W.printString("Program", *ExpectedProgram);
371   }
372   W.printNumber("OffsetInParent", DefRangeSubfield.OffsetInParent);
373   printLocalVariableAddrRange(DefRangeSubfield.Range,
374                               DefRangeSubfield.getRelocationOffset());
375   printLocalVariableAddrGap(DefRangeSubfield.Gaps);
376   return Error::success();
377 }
378 
379 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
380                                            DefRangeSym &DefRange) {
381   if (ObjDelegate) {
382     DebugStringTableSubsectionRef Strings = ObjDelegate->getStringTable();
383     auto ExpectedProgram = Strings.getString(DefRange.Program);
384     if (!ExpectedProgram) {
385       consumeError(ExpectedProgram.takeError());
386       return llvm::make_error<CodeViewError>(
387           "String table offset outside of bounds of String Table!");
388     }
389     W.printString("Program", *ExpectedProgram);
390   }
391   printLocalVariableAddrRange(DefRange.Range, DefRange.getRelocationOffset());
392   printLocalVariableAddrGap(DefRange.Gaps);
393   return Error::success();
394 }
395 
396 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
397                                            FrameCookieSym &FrameCookie) {
398   StringRef LinkageName;
399   if (ObjDelegate) {
400     ObjDelegate->printRelocatedField("CodeOffset",
401                                      FrameCookie.getRelocationOffset(),
402                                      FrameCookie.CodeOffset, &LinkageName);
403   }
404   W.printEnum("Register", uint16_t(FrameCookie.Register),
405               getRegisterNames(CompilationCPUType));
406   W.printEnum("CookieKind", uint16_t(FrameCookie.CookieKind),
407               getFrameCookieKindNames());
408   W.printHex("Flags", FrameCookie.Flags);
409   return Error::success();
410 }
411 
412 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
413                                            FrameProcSym &FrameProc) {
414   W.printHex("TotalFrameBytes", FrameProc.TotalFrameBytes);
415   W.printHex("PaddingFrameBytes", FrameProc.PaddingFrameBytes);
416   W.printHex("OffsetToPadding", FrameProc.OffsetToPadding);
417   W.printHex("BytesOfCalleeSavedRegisters",
418              FrameProc.BytesOfCalleeSavedRegisters);
419   W.printHex("OffsetOfExceptionHandler", FrameProc.OffsetOfExceptionHandler);
420   W.printHex("SectionIdOfExceptionHandler",
421              FrameProc.SectionIdOfExceptionHandler);
422   W.printFlags("Flags", static_cast<uint32_t>(FrameProc.Flags),
423                getFrameProcSymFlagNames());
424   W.printEnum("LocalFramePtrReg",
425               uint16_t(FrameProc.getLocalFramePtrReg(CompilationCPUType)),
426               getRegisterNames(CompilationCPUType));
427   W.printEnum("ParamFramePtrReg",
428               uint16_t(FrameProc.getParamFramePtrReg(CompilationCPUType)),
429               getRegisterNames(CompilationCPUType));
430   return Error::success();
431 }
432 
433 Error CVSymbolDumperImpl::visitKnownRecord(
434     CVSymbol &CVR, HeapAllocationSiteSym &HeapAllocSite) {
435   StringRef LinkageName;
436   if (ObjDelegate) {
437     ObjDelegate->printRelocatedField("CodeOffset",
438                                      HeapAllocSite.getRelocationOffset(),
439                                      HeapAllocSite.CodeOffset, &LinkageName);
440   }
441   W.printHex("Segment", HeapAllocSite.Segment);
442   W.printHex("CallInstructionSize", HeapAllocSite.CallInstructionSize);
443   printTypeIndex("Type", HeapAllocSite.Type);
444   if (!LinkageName.empty())
445     W.printString("LinkageName", LinkageName);
446   return Error::success();
447 }
448 
449 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
450                                            InlineSiteSym &InlineSite) {
451   W.printHex("PtrParent", InlineSite.Parent);
452   W.printHex("PtrEnd", InlineSite.End);
453   printTypeIndex("Inlinee", InlineSite.Inlinee);
454 
455   ListScope BinaryAnnotations(W, "BinaryAnnotations");
456   for (auto &Annotation : InlineSite.annotations()) {
457     switch (Annotation.OpCode) {
458     case BinaryAnnotationsOpCode::Invalid:
459       W.printString("(Annotation Padding)");
460       break;
461     case BinaryAnnotationsOpCode::CodeOffset:
462     case BinaryAnnotationsOpCode::ChangeCodeOffset:
463     case BinaryAnnotationsOpCode::ChangeCodeLength:
464       W.printHex(Annotation.Name, Annotation.U1);
465       break;
466     case BinaryAnnotationsOpCode::ChangeCodeOffsetBase:
467     case BinaryAnnotationsOpCode::ChangeLineEndDelta:
468     case BinaryAnnotationsOpCode::ChangeRangeKind:
469     case BinaryAnnotationsOpCode::ChangeColumnStart:
470     case BinaryAnnotationsOpCode::ChangeColumnEnd:
471       W.printNumber(Annotation.Name, Annotation.U1);
472       break;
473     case BinaryAnnotationsOpCode::ChangeLineOffset:
474     case BinaryAnnotationsOpCode::ChangeColumnEndDelta:
475       W.printNumber(Annotation.Name, Annotation.S1);
476       break;
477     case BinaryAnnotationsOpCode::ChangeFile:
478       if (ObjDelegate) {
479         W.printHex("ChangeFile",
480                    ObjDelegate->getFileNameForFileOffset(Annotation.U1),
481                    Annotation.U1);
482       } else {
483         W.printHex("ChangeFile", Annotation.U1);
484       }
485 
486       break;
487     case BinaryAnnotationsOpCode::ChangeCodeOffsetAndLineOffset: {
488       W.startLine() << "ChangeCodeOffsetAndLineOffset: {CodeOffset: "
489                     << W.hex(Annotation.U1) << ", LineOffset: " << Annotation.S1
490                     << "}\n";
491       break;
492     }
493     case BinaryAnnotationsOpCode::ChangeCodeLengthAndCodeOffset: {
494       W.startLine() << "ChangeCodeLengthAndCodeOffset: {CodeOffset: "
495                     << W.hex(Annotation.U2)
496                     << ", Length: " << W.hex(Annotation.U1) << "}\n";
497       break;
498     }
499     }
500   }
501   return Error::success();
502 }
503 
504 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
505                                            RegisterSym &Register) {
506   printTypeIndex("Type", Register.Index);
507   W.printEnum("Seg", uint16_t(Register.Register),
508               getRegisterNames(CompilationCPUType));
509   W.printString("Name", Register.Name);
510   return Error::success();
511 }
512 
513 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, PublicSym32 &Public) {
514   W.printFlags("Flags", uint32_t(Public.Flags), getPublicSymFlagNames());
515   W.printNumber("Seg", Public.Segment);
516   W.printNumber("Off", Public.Offset);
517   W.printString("Name", Public.Name);
518   return Error::success();
519 }
520 
521 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, ProcRefSym &ProcRef) {
522   W.printNumber("SumName", ProcRef.SumName);
523   W.printNumber("SymOffset", ProcRef.SymOffset);
524   W.printNumber("Mod", ProcRef.Module);
525   W.printString("Name", ProcRef.Name);
526   return Error::success();
527 }
528 
529 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, LabelSym &Label) {
530   StringRef LinkageName;
531   if (ObjDelegate) {
532     ObjDelegate->printRelocatedField("CodeOffset", Label.getRelocationOffset(),
533                                      Label.CodeOffset, &LinkageName);
534   }
535   W.printHex("Segment", Label.Segment);
536   W.printHex("Flags", uint8_t(Label.Flags));
537   W.printFlags("Flags", uint8_t(Label.Flags), getProcSymFlagNames());
538   W.printString("DisplayName", Label.Name);
539   if (!LinkageName.empty())
540     W.printString("LinkageName", LinkageName);
541   return Error::success();
542 }
543 
544 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, LocalSym &Local) {
545   printTypeIndex("Type", Local.Type);
546   W.printFlags("Flags", uint16_t(Local.Flags), getLocalFlagNames());
547   W.printString("VarName", Local.Name);
548   return Error::success();
549 }
550 
551 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, ObjNameSym &ObjName) {
552   W.printHex("Signature", ObjName.Signature);
553   W.printString("ObjectName", ObjName.Name);
554   return Error::success();
555 }
556 
557 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, ProcSym &Proc) {
558   if (InFunctionScope)
559     return llvm::make_error<CodeViewError>(
560         "Visiting a ProcSym while inside function scope!");
561 
562   InFunctionScope = true;
563 
564   StringRef LinkageName;
565   W.printHex("PtrParent", Proc.Parent);
566   W.printHex("PtrEnd", Proc.End);
567   W.printHex("PtrNext", Proc.Next);
568   W.printHex("CodeSize", Proc.CodeSize);
569   W.printHex("DbgStart", Proc.DbgStart);
570   W.printHex("DbgEnd", Proc.DbgEnd);
571   printTypeIndex("FunctionType", Proc.FunctionType);
572   if (ObjDelegate) {
573     ObjDelegate->printRelocatedField("CodeOffset", Proc.getRelocationOffset(),
574                                      Proc.CodeOffset, &LinkageName);
575   }
576   W.printHex("Segment", Proc.Segment);
577   W.printFlags("Flags", static_cast<uint8_t>(Proc.Flags),
578                getProcSymFlagNames());
579   W.printString("DisplayName", Proc.Name);
580   if (!LinkageName.empty())
581     W.printString("LinkageName", LinkageName);
582   return Error::success();
583 }
584 
585 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
586                                            ScopeEndSym &ScopeEnd) {
587   InFunctionScope = false;
588   return Error::success();
589 }
590 
591 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, CallerSym &Caller) {
592   ListScope S(W, CVR.kind() == S_CALLEES ? "Callees" : "Callers");
593   for (auto FuncID : Caller.Indices)
594     printTypeIndex("FuncID", FuncID);
595   return Error::success();
596 }
597 
598 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
599                                            RegRelativeSym &RegRel) {
600   W.printHex("Offset", RegRel.Offset);
601   printTypeIndex("Type", RegRel.Type);
602   W.printEnum("Register", uint16_t(RegRel.Register),
603               getRegisterNames(CompilationCPUType));
604   W.printString("VarName", RegRel.Name);
605   return Error::success();
606 }
607 
608 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
609                                            ThreadLocalDataSym &Data) {
610   StringRef LinkageName;
611   if (ObjDelegate) {
612     ObjDelegate->printRelocatedField("DataOffset", Data.getRelocationOffset(),
613                                      Data.DataOffset, &LinkageName);
614   }
615   printTypeIndex("Type", Data.Type);
616   W.printString("DisplayName", Data.Name);
617   if (!LinkageName.empty())
618     W.printString("LinkageName", LinkageName);
619   return Error::success();
620 }
621 
622 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, UDTSym &UDT) {
623   printTypeIndex("Type", UDT.Type);
624   W.printString("UDTName", UDT.Name);
625   return Error::success();
626 }
627 
628 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
629                                            UsingNamespaceSym &UN) {
630   W.printString("Namespace", UN.Name);
631   return Error::success();
632 }
633 
634 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
635                                            AnnotationSym &Annot) {
636   W.printHex("Offset", Annot.CodeOffset);
637   W.printHex("Segment", Annot.Segment);
638 
639   ListScope S(W, "Strings");
640   for (StringRef Str : Annot.Strings)
641     W.printString(Str);
642 
643   return Error::success();
644 }
645 
646 Error CVSymbolDumperImpl::visitUnknownSymbol(CVSymbol &CVR) {
647   W.printNumber("Length", CVR.length());
648   return Error::success();
649 }
650 
651 Error CVSymbolDumper::dump(CVRecord<SymbolKind> &Record) {
652   SymbolVisitorCallbackPipeline Pipeline;
653   SymbolDeserializer Deserializer(ObjDelegate.get(), Container);
654   CVSymbolDumperImpl Dumper(Types, ObjDelegate.get(), W, CompilationCPUType,
655                             PrintRecordBytes);
656 
657   Pipeline.addCallbackToPipeline(Deserializer);
658   Pipeline.addCallbackToPipeline(Dumper);
659   CVSymbolVisitor Visitor(Pipeline);
660   auto Err = Visitor.visitSymbolRecord(Record);
661   CompilationCPUType = Dumper.getCompilationCPUType();
662   return Err;
663 }
664 
665 Error CVSymbolDumper::dump(const CVSymbolArray &Symbols) {
666   SymbolVisitorCallbackPipeline Pipeline;
667   SymbolDeserializer Deserializer(ObjDelegate.get(), Container);
668   CVSymbolDumperImpl Dumper(Types, ObjDelegate.get(), W, CompilationCPUType,
669                             PrintRecordBytes);
670 
671   Pipeline.addCallbackToPipeline(Deserializer);
672   Pipeline.addCallbackToPipeline(Dumper);
673   CVSymbolVisitor Visitor(Pipeline);
674   auto Err = Visitor.visitSymbolStream(Symbols);
675   CompilationCPUType = Dumper.getCompilationCPUType();
676   return Err;
677 }
678