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