xref: /freebsd/contrib/llvm-project/llvm/lib/DebugInfo/CodeView/SymbolDumper.cpp (revision f976241773df2260e6170317080761d1c5814fe5) 
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/SmallString.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 #include <system_error>
24 
25 using namespace llvm;
26 using namespace llvm::codeview;
27 
28 namespace {
29 /// Use this private dumper implementation to keep implementation details about
30 /// the visitor out of SymbolDumper.h.
31 class CVSymbolDumperImpl : public SymbolVisitorCallbacks {
32 public:
33   CVSymbolDumperImpl(TypeCollection &Types, SymbolDumpDelegate *ObjDelegate,
34                      ScopedPrinter &W, CPUType CPU, bool PrintRecordBytes)
35       : Types(Types), ObjDelegate(ObjDelegate), W(W), CompilationCPUType(CPU),
36         PrintRecordBytes(PrintRecordBytes), InFunctionScope(false) {}
37 
38 /// CVSymbolVisitor overrides.
39 #define SYMBOL_RECORD(EnumName, EnumVal, Name)                                 \
40   Error visitKnownRecord(CVSymbol &CVR, Name &Record) override;
41 #define SYMBOL_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName)
42 #include "llvm/DebugInfo/CodeView/CodeViewSymbols.def"
43 
44   Error visitSymbolBegin(CVSymbol &Record) override;
45   Error visitSymbolEnd(CVSymbol &Record) override;
46   Error visitUnknownSymbol(CVSymbol &Record) override;
47 
48   CPUType getCompilationCPUType() const { return CompilationCPUType; }
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   /// Save the machine or CPU type when dumping a compile symbols.
61   CPUType CompilationCPUType = CPUType::X64;
62 
63   bool PrintRecordBytes;
64   bool InFunctionScope;
65 };
66 }
67 
68 static StringRef getSymbolKindName(SymbolKind Kind) {
69   switch (Kind) {
70 #define SYMBOL_RECORD(EnumName, EnumVal, Name)                                 \
71   case EnumName:                                                               \
72     return #Name;
73 #include "llvm/DebugInfo/CodeView/CodeViewSymbols.def"
74   default:
75     break;
76   }
77   return "UnknownSym";
78 }
79 
80 void CVSymbolDumperImpl::printLocalVariableAddrRange(
81     const LocalVariableAddrRange &Range, uint32_t RelocationOffset) {
82   DictScope S(W, "LocalVariableAddrRange");
83   if (ObjDelegate)
84     ObjDelegate->printRelocatedField("OffsetStart", RelocationOffset,
85                                      Range.OffsetStart);
86   W.printHex("ISectStart", Range.ISectStart);
87   W.printHex("Range", Range.Range);
88 }
89 
90 void CVSymbolDumperImpl::printLocalVariableAddrGap(
91     ArrayRef<LocalVariableAddrGap> Gaps) {
92   for (auto &Gap : Gaps) {
93     ListScope S(W, "LocalVariableAddrGap");
94     W.printHex("GapStartOffset", Gap.GapStartOffset);
95     W.printHex("Range", Gap.Range);
96   }
97 }
98 
99 void CVSymbolDumperImpl::printTypeIndex(StringRef FieldName, TypeIndex TI) {
100   codeview::printTypeIndex(W, FieldName, TI, Types);
101 }
102 
103 Error CVSymbolDumperImpl::visitSymbolBegin(CVSymbol &CVR) {
104   W.startLine() << getSymbolKindName(CVR.kind());
105   W.getOStream() << " {\n";
106   W.indent();
107   W.printEnum("Kind", unsigned(CVR.kind()), getSymbolTypeNames());
108   return Error::success();
109 }
110 
111 Error CVSymbolDumperImpl::visitSymbolEnd(CVSymbol &CVR) {
112   if (PrintRecordBytes && ObjDelegate)
113     ObjDelegate->printBinaryBlockWithRelocs("SymData", CVR.content());
114 
115   W.unindent();
116   W.startLine() << "}\n";
117   return Error::success();
118 }
119 
120 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, BlockSym &Block) {
121   StringRef LinkageName;
122   W.printHex("PtrParent", Block.Parent);
123   W.printHex("PtrEnd", Block.End);
124   W.printHex("CodeSize", Block.CodeSize);
125   if (ObjDelegate) {
126     ObjDelegate->printRelocatedField("CodeOffset", Block.getRelocationOffset(),
127                                      Block.CodeOffset, &LinkageName);
128   }
129   W.printHex("Segment", Block.Segment);
130   W.printString("BlockName", Block.Name);
131   W.printString("LinkageName", LinkageName);
132   return Error::success();
133 }
134 
135 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, Thunk32Sym &Thunk) {
136   W.printString("Name", Thunk.Name);
137   W.printNumber("Parent", Thunk.Parent);
138   W.printNumber("End", Thunk.End);
139   W.printNumber("Next", Thunk.Next);
140   W.printNumber("Off", Thunk.Offset);
141   W.printNumber("Seg", Thunk.Segment);
142   W.printNumber("Len", Thunk.Length);
143   W.printEnum("Ordinal", uint8_t(Thunk.Thunk), getThunkOrdinalNames());
144   return Error::success();
145 }
146 
147 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
148                                            TrampolineSym &Tramp) {
149   W.printEnum("Type", uint16_t(Tramp.Type), getTrampolineNames());
150   W.printNumber("Size", Tramp.Size);
151   W.printNumber("ThunkOff", Tramp.ThunkOffset);
152   W.printNumber("TargetOff", Tramp.TargetOffset);
153   W.printNumber("ThunkSection", Tramp.ThunkSection);
154   W.printNumber("TargetSection", Tramp.TargetSection);
155   return Error::success();
156 }
157 
158 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, SectionSym &Section) {
159   W.printNumber("SectionNumber", Section.SectionNumber);
160   W.printNumber("Alignment", Section.Alignment);
161   W.printNumber("Rva", Section.Rva);
162   W.printNumber("Length", Section.Length);
163   W.printFlags("Characteristics", Section.Characteristics,
164                getImageSectionCharacteristicNames(),
165                COFF::SectionCharacteristics(0x00F00000));
166 
167   W.printString("Name", Section.Name);
168   return Error::success();
169 }
170 
171 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
172                                            CoffGroupSym &CoffGroup) {
173   W.printNumber("Size", CoffGroup.Size);
174   W.printFlags("Characteristics", CoffGroup.Characteristics,
175                getImageSectionCharacteristicNames(),
176                COFF::SectionCharacteristics(0x00F00000));
177   W.printNumber("Offset", CoffGroup.Offset);
178   W.printNumber("Segment", CoffGroup.Segment);
179   W.printString("Name", CoffGroup.Name);
180   return Error::success();
181 }
182 
183 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
184                                            BPRelativeSym &BPRel) {
185   W.printNumber("Offset", BPRel.Offset);
186   printTypeIndex("Type", BPRel.Type);
187   W.printString("VarName", BPRel.Name);
188   return Error::success();
189 }
190 
191 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
192                                            BuildInfoSym &BuildInfo) {
193   printTypeIndex("BuildId", BuildInfo.BuildId);
194   return Error::success();
195 }
196 
197 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
198                                            CallSiteInfoSym &CallSiteInfo) {
199   StringRef LinkageName;
200   if (ObjDelegate) {
201     ObjDelegate->printRelocatedField("CodeOffset",
202                                      CallSiteInfo.getRelocationOffset(),
203                                      CallSiteInfo.CodeOffset, &LinkageName);
204   }
205   W.printHex("Segment", CallSiteInfo.Segment);
206   printTypeIndex("Type", CallSiteInfo.Type);
207   if (!LinkageName.empty())
208     W.printString("LinkageName", LinkageName);
209   return Error::success();
210 }
211 
212 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
213                                            EnvBlockSym &EnvBlock) {
214   ListScope L(W, "Entries");
215   for (auto Entry : EnvBlock.Fields) {
216     W.printString(Entry);
217   }
218   return Error::success();
219 }
220 
221 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
222                                            FileStaticSym &FileStatic) {
223   printTypeIndex("Index", FileStatic.Index);
224   W.printNumber("ModFilenameOffset", FileStatic.ModFilenameOffset);
225   W.printFlags("Flags", uint16_t(FileStatic.Flags), getLocalFlagNames());
226   W.printString("Name", FileStatic.Name);
227   return Error::success();
228 }
229 
230 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, ExportSym &Export) {
231   W.printNumber("Ordinal", Export.Ordinal);
232   W.printFlags("Flags", uint16_t(Export.Flags), getExportSymFlagNames());
233   W.printString("Name", Export.Name);
234   return Error::success();
235 }
236 
237 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
238                                            Compile2Sym &Compile2) {
239   W.printEnum("Language", Compile2.getLanguage(), getSourceLanguageNames());
240   W.printFlags("Flags", Compile2.getFlags(), getCompileSym2FlagNames());
241   W.printEnum("Machine", unsigned(Compile2.Machine), getCPUTypeNames());
242   CompilationCPUType = Compile2.Machine;
243   std::string FrontendVersion;
244   {
245     raw_string_ostream Out(FrontendVersion);
246     Out << Compile2.VersionFrontendMajor << '.' << Compile2.VersionFrontendMinor
247         << '.' << Compile2.VersionFrontendBuild;
248   }
249   std::string BackendVersion;
250   {
251     raw_string_ostream Out(BackendVersion);
252     Out << Compile2.VersionBackendMajor << '.' << Compile2.VersionBackendMinor
253         << '.' << Compile2.VersionBackendBuild;
254   }
255   W.printString("FrontendVersion", FrontendVersion);
256   W.printString("BackendVersion", BackendVersion);
257   W.printString("VersionName", Compile2.Version);
258   return Error::success();
259 }
260 
261 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
262                                            Compile3Sym &Compile3) {
263   W.printEnum("Language", uint8_t(Compile3.getLanguage()), getSourceLanguageNames());
264   W.printFlags("Flags", uint32_t(Compile3.getFlags()),
265                getCompileSym3FlagNames());
266   W.printEnum("Machine", unsigned(Compile3.Machine), getCPUTypeNames());
267   CompilationCPUType = Compile3.Machine;
268   std::string FrontendVersion;
269   {
270     raw_string_ostream Out(FrontendVersion);
271     Out << Compile3.VersionFrontendMajor << '.' << Compile3.VersionFrontendMinor
272         << '.' << Compile3.VersionFrontendBuild << '.'
273         << Compile3.VersionFrontendQFE;
274   }
275   std::string BackendVersion;
276   {
277     raw_string_ostream Out(BackendVersion);
278     Out << Compile3.VersionBackendMajor << '.' << Compile3.VersionBackendMinor
279         << '.' << Compile3.VersionBackendBuild << '.'
280         << Compile3.VersionBackendQFE;
281   }
282   W.printString("FrontendVersion", FrontendVersion);
283   W.printString("BackendVersion", BackendVersion);
284   W.printString("VersionName", Compile3.Version);
285   return Error::success();
286 }
287 
288 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
289                                            ConstantSym &Constant) {
290   printTypeIndex("Type", Constant.Type);
291   W.printNumber("Value", Constant.Value);
292   W.printString("Name", Constant.Name);
293   return Error::success();
294 }
295 
296 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, DataSym &Data) {
297   StringRef LinkageName;
298   if (ObjDelegate) {
299     ObjDelegate->printRelocatedField("DataOffset", Data.getRelocationOffset(),
300                                      Data.DataOffset, &LinkageName);
301   }
302   printTypeIndex("Type", Data.Type);
303   W.printString("DisplayName", Data.Name);
304   if (!LinkageName.empty())
305     W.printString("LinkageName", LinkageName);
306   return Error::success();
307 }
308 
309 Error CVSymbolDumperImpl::visitKnownRecord(
310     CVSymbol &CVR,
311     DefRangeFramePointerRelFullScopeSym &DefRangeFramePointerRelFullScope) {
312   W.printNumber("Offset", DefRangeFramePointerRelFullScope.Offset);
313   return Error::success();
314 }
315 
316 Error CVSymbolDumperImpl::visitKnownRecord(
317     CVSymbol &CVR, DefRangeFramePointerRelSym &DefRangeFramePointerRel) {
318   W.printNumber("Offset", DefRangeFramePointerRel.Offset);
319   printLocalVariableAddrRange(DefRangeFramePointerRel.Range,
320                               DefRangeFramePointerRel.getRelocationOffset());
321   printLocalVariableAddrGap(DefRangeFramePointerRel.Gaps);
322   return Error::success();
323 }
324 
325 Error CVSymbolDumperImpl::visitKnownRecord(
326     CVSymbol &CVR, DefRangeRegisterRelSym &DefRangeRegisterRel) {
327   W.printEnum("BaseRegister", uint16_t(DefRangeRegisterRel.Hdr.Register),
328               getRegisterNames(CompilationCPUType));
329   W.printBoolean("HasSpilledUDTMember",
330                  DefRangeRegisterRel.hasSpilledUDTMember());
331   W.printNumber("OffsetInParent", DefRangeRegisterRel.offsetInParent());
332   W.printNumber("BasePointerOffset", DefRangeRegisterRel.Hdr.BasePointerOffset);
333   printLocalVariableAddrRange(DefRangeRegisterRel.Range,
334                               DefRangeRegisterRel.getRelocationOffset());
335   printLocalVariableAddrGap(DefRangeRegisterRel.Gaps);
336   return Error::success();
337 }
338 
339 Error CVSymbolDumperImpl::visitKnownRecord(
340     CVSymbol &CVR, DefRangeRegisterSym &DefRangeRegister) {
341   W.printEnum("Register", uint16_t(DefRangeRegister.Hdr.Register),
342               getRegisterNames(CompilationCPUType));
343   W.printNumber("MayHaveNoName", DefRangeRegister.Hdr.MayHaveNoName);
344   printLocalVariableAddrRange(DefRangeRegister.Range,
345                               DefRangeRegister.getRelocationOffset());
346   printLocalVariableAddrGap(DefRangeRegister.Gaps);
347   return Error::success();
348 }
349 
350 Error CVSymbolDumperImpl::visitKnownRecord(
351     CVSymbol &CVR, DefRangeSubfieldRegisterSym &DefRangeSubfieldRegister) {
352   W.printEnum("Register", uint16_t(DefRangeSubfieldRegister.Hdr.Register),
353               getRegisterNames(CompilationCPUType));
354   W.printNumber("MayHaveNoName", DefRangeSubfieldRegister.Hdr.MayHaveNoName);
355   W.printNumber("OffsetInParent", DefRangeSubfieldRegister.Hdr.OffsetInParent);
356   printLocalVariableAddrRange(DefRangeSubfieldRegister.Range,
357                               DefRangeSubfieldRegister.getRelocationOffset());
358   printLocalVariableAddrGap(DefRangeSubfieldRegister.Gaps);
359   return Error::success();
360 }
361 
362 Error CVSymbolDumperImpl::visitKnownRecord(
363     CVSymbol &CVR, DefRangeSubfieldSym &DefRangeSubfield) {
364   if (ObjDelegate) {
365     DebugStringTableSubsectionRef Strings = ObjDelegate->getStringTable();
366     auto ExpectedProgram = Strings.getString(DefRangeSubfield.Program);
367     if (!ExpectedProgram) {
368       consumeError(ExpectedProgram.takeError());
369       return llvm::make_error<CodeViewError>(
370           "String table offset outside of bounds of String Table!");
371     }
372     W.printString("Program", *ExpectedProgram);
373   }
374   W.printNumber("OffsetInParent", DefRangeSubfield.OffsetInParent);
375   printLocalVariableAddrRange(DefRangeSubfield.Range,
376                               DefRangeSubfield.getRelocationOffset());
377   printLocalVariableAddrGap(DefRangeSubfield.Gaps);
378   return Error::success();
379 }
380 
381 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
382                                            DefRangeSym &DefRange) {
383   if (ObjDelegate) {
384     DebugStringTableSubsectionRef Strings = ObjDelegate->getStringTable();
385     auto ExpectedProgram = Strings.getString(DefRange.Program);
386     if (!ExpectedProgram) {
387       consumeError(ExpectedProgram.takeError());
388       return llvm::make_error<CodeViewError>(
389           "String table offset outside of bounds of String Table!");
390     }
391     W.printString("Program", *ExpectedProgram);
392   }
393   printLocalVariableAddrRange(DefRange.Range, DefRange.getRelocationOffset());
394   printLocalVariableAddrGap(DefRange.Gaps);
395   return Error::success();
396 }
397 
398 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
399                                            FrameCookieSym &FrameCookie) {
400   StringRef LinkageName;
401   if (ObjDelegate) {
402     ObjDelegate->printRelocatedField("CodeOffset",
403                                      FrameCookie.getRelocationOffset(),
404                                      FrameCookie.CodeOffset, &LinkageName);
405   }
406   W.printEnum("Register", uint16_t(FrameCookie.Register),
407               getRegisterNames(CompilationCPUType));
408   W.printEnum("CookieKind", uint16_t(FrameCookie.CookieKind),
409               getFrameCookieKindNames());
410   W.printHex("Flags", FrameCookie.Flags);
411   return Error::success();
412 }
413 
414 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
415                                            FrameProcSym &FrameProc) {
416   W.printHex("TotalFrameBytes", FrameProc.TotalFrameBytes);
417   W.printHex("PaddingFrameBytes", FrameProc.PaddingFrameBytes);
418   W.printHex("OffsetToPadding", FrameProc.OffsetToPadding);
419   W.printHex("BytesOfCalleeSavedRegisters",
420              FrameProc.BytesOfCalleeSavedRegisters);
421   W.printHex("OffsetOfExceptionHandler", FrameProc.OffsetOfExceptionHandler);
422   W.printHex("SectionIdOfExceptionHandler",
423              FrameProc.SectionIdOfExceptionHandler);
424   W.printFlags("Flags", static_cast<uint32_t>(FrameProc.Flags),
425                getFrameProcSymFlagNames());
426   W.printEnum("LocalFramePtrReg",
427               uint16_t(FrameProc.getLocalFramePtrReg(CompilationCPUType)),
428               getRegisterNames(CompilationCPUType));
429   W.printEnum("ParamFramePtrReg",
430               uint16_t(FrameProc.getParamFramePtrReg(CompilationCPUType)),
431               getRegisterNames(CompilationCPUType));
432   return Error::success();
433 }
434 
435 Error CVSymbolDumperImpl::visitKnownRecord(
436     CVSymbol &CVR, HeapAllocationSiteSym &HeapAllocSite) {
437   StringRef LinkageName;
438   if (ObjDelegate) {
439     ObjDelegate->printRelocatedField("CodeOffset",
440                                      HeapAllocSite.getRelocationOffset(),
441                                      HeapAllocSite.CodeOffset, &LinkageName);
442   }
443   W.printHex("Segment", HeapAllocSite.Segment);
444   W.printHex("CallInstructionSize", HeapAllocSite.CallInstructionSize);
445   printTypeIndex("Type", HeapAllocSite.Type);
446   if (!LinkageName.empty())
447     W.printString("LinkageName", LinkageName);
448   return Error::success();
449 }
450 
451 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
452                                            InlineSiteSym &InlineSite) {
453   W.printHex("PtrParent", InlineSite.Parent);
454   W.printHex("PtrEnd", InlineSite.End);
455   printTypeIndex("Inlinee", InlineSite.Inlinee);
456 
457   ListScope BinaryAnnotations(W, "BinaryAnnotations");
458   for (auto &Annotation : InlineSite.annotations()) {
459     switch (Annotation.OpCode) {
460     case BinaryAnnotationsOpCode::Invalid:
461       W.printString("(Annotation Padding)");
462       break;
463     case BinaryAnnotationsOpCode::CodeOffset:
464     case BinaryAnnotationsOpCode::ChangeCodeOffset:
465     case BinaryAnnotationsOpCode::ChangeCodeLength:
466       W.printHex(Annotation.Name, Annotation.U1);
467       break;
468     case BinaryAnnotationsOpCode::ChangeCodeOffsetBase:
469     case BinaryAnnotationsOpCode::ChangeLineEndDelta:
470     case BinaryAnnotationsOpCode::ChangeRangeKind:
471     case BinaryAnnotationsOpCode::ChangeColumnStart:
472     case BinaryAnnotationsOpCode::ChangeColumnEnd:
473       W.printNumber(Annotation.Name, Annotation.U1);
474       break;
475     case BinaryAnnotationsOpCode::ChangeLineOffset:
476     case BinaryAnnotationsOpCode::ChangeColumnEndDelta:
477       W.printNumber(Annotation.Name, Annotation.S1);
478       break;
479     case BinaryAnnotationsOpCode::ChangeFile:
480       if (ObjDelegate) {
481         W.printHex("ChangeFile",
482                    ObjDelegate->getFileNameForFileOffset(Annotation.U1),
483                    Annotation.U1);
484       } else {
485         W.printHex("ChangeFile", Annotation.U1);
486       }
487 
488       break;
489     case BinaryAnnotationsOpCode::ChangeCodeOffsetAndLineOffset: {
490       W.startLine() << "ChangeCodeOffsetAndLineOffset: {CodeOffset: "
491                     << W.hex(Annotation.U1) << ", LineOffset: " << Annotation.S1
492                     << "}\n";
493       break;
494     }
495     case BinaryAnnotationsOpCode::ChangeCodeLengthAndCodeOffset: {
496       W.startLine() << "ChangeCodeLengthAndCodeOffset: {CodeOffset: "
497                     << W.hex(Annotation.U2)
498                     << ", Length: " << W.hex(Annotation.U1) << "}\n";
499       break;
500     }
501     }
502   }
503   return Error::success();
504 }
505 
506 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
507                                            RegisterSym &Register) {
508   printTypeIndex("Type", Register.Index);
509   W.printEnum("Seg", uint16_t(Register.Register),
510               getRegisterNames(CompilationCPUType));
511   W.printString("Name", Register.Name);
512   return Error::success();
513 }
514 
515 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, PublicSym32 &Public) {
516   W.printFlags("Flags", uint32_t(Public.Flags), getPublicSymFlagNames());
517   W.printNumber("Seg", Public.Segment);
518   W.printNumber("Off", Public.Offset);
519   W.printString("Name", Public.Name);
520   return Error::success();
521 }
522 
523 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, ProcRefSym &ProcRef) {
524   W.printNumber("SumName", ProcRef.SumName);
525   W.printNumber("SymOffset", ProcRef.SymOffset);
526   W.printNumber("Mod", ProcRef.Module);
527   W.printString("Name", ProcRef.Name);
528   return Error::success();
529 }
530 
531 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, LabelSym &Label) {
532   StringRef LinkageName;
533   if (ObjDelegate) {
534     ObjDelegate->printRelocatedField("CodeOffset", Label.getRelocationOffset(),
535                                      Label.CodeOffset, &LinkageName);
536   }
537   W.printHex("Segment", Label.Segment);
538   W.printHex("Flags", uint8_t(Label.Flags));
539   W.printFlags("Flags", uint8_t(Label.Flags), getProcSymFlagNames());
540   W.printString("DisplayName", Label.Name);
541   if (!LinkageName.empty())
542     W.printString("LinkageName", LinkageName);
543   return Error::success();
544 }
545 
546 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, LocalSym &Local) {
547   printTypeIndex("Type", Local.Type);
548   W.printFlags("Flags", uint16_t(Local.Flags), getLocalFlagNames());
549   W.printString("VarName", Local.Name);
550   return Error::success();
551 }
552 
553 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, ObjNameSym &ObjName) {
554   W.printHex("Signature", ObjName.Signature);
555   W.printString("ObjectName", ObjName.Name);
556   return Error::success();
557 }
558 
559 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, ProcSym &Proc) {
560   if (InFunctionScope)
561     return llvm::make_error<CodeViewError>(
562         "Visiting a ProcSym while inside function scope!");
563 
564   InFunctionScope = true;
565 
566   StringRef LinkageName;
567   W.printHex("PtrParent", Proc.Parent);
568   W.printHex("PtrEnd", Proc.End);
569   W.printHex("PtrNext", Proc.Next);
570   W.printHex("CodeSize", Proc.CodeSize);
571   W.printHex("DbgStart", Proc.DbgStart);
572   W.printHex("DbgEnd", Proc.DbgEnd);
573   printTypeIndex("FunctionType", Proc.FunctionType);
574   if (ObjDelegate) {
575     ObjDelegate->printRelocatedField("CodeOffset", Proc.getRelocationOffset(),
576                                      Proc.CodeOffset, &LinkageName);
577   }
578   W.printHex("Segment", Proc.Segment);
579   W.printFlags("Flags", static_cast<uint8_t>(Proc.Flags),
580                getProcSymFlagNames());
581   W.printString("DisplayName", Proc.Name);
582   if (!LinkageName.empty())
583     W.printString("LinkageName", LinkageName);
584   return Error::success();
585 }
586 
587 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
588                                            ScopeEndSym &ScopeEnd) {
589   InFunctionScope = false;
590   return Error::success();
591 }
592 
593 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, CallerSym &Caller) {
594   ListScope S(W, CVR.kind() == S_CALLEES ? "Callees" : "Callers");
595   for (auto FuncID : Caller.Indices)
596     printTypeIndex("FuncID", FuncID);
597   return Error::success();
598 }
599 
600 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
601                                            RegRelativeSym &RegRel) {
602   W.printHex("Offset", RegRel.Offset);
603   printTypeIndex("Type", RegRel.Type);
604   W.printEnum("Register", uint16_t(RegRel.Register),
605               getRegisterNames(CompilationCPUType));
606   W.printString("VarName", RegRel.Name);
607   return Error::success();
608 }
609 
610 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
611                                            ThreadLocalDataSym &Data) {
612   StringRef LinkageName;
613   if (ObjDelegate) {
614     ObjDelegate->printRelocatedField("DataOffset", Data.getRelocationOffset(),
615                                      Data.DataOffset, &LinkageName);
616   }
617   printTypeIndex("Type", Data.Type);
618   W.printString("DisplayName", Data.Name);
619   if (!LinkageName.empty())
620     W.printString("LinkageName", LinkageName);
621   return Error::success();
622 }
623 
624 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR, UDTSym &UDT) {
625   printTypeIndex("Type", UDT.Type);
626   W.printString("UDTName", UDT.Name);
627   return Error::success();
628 }
629 
630 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
631                                            UsingNamespaceSym &UN) {
632   W.printString("Namespace", UN.Name);
633   return Error::success();
634 }
635 
636 Error CVSymbolDumperImpl::visitKnownRecord(CVSymbol &CVR,
637                                            AnnotationSym &Annot) {
638   W.printHex("Offset", Annot.CodeOffset);
639   W.printHex("Segment", Annot.Segment);
640 
641   ListScope S(W, "Strings");
642   for (StringRef Str : Annot.Strings)
643     W.printString(Str);
644 
645   return Error::success();
646 }
647 
648 Error CVSymbolDumperImpl::visitUnknownSymbol(CVSymbol &CVR) {
649   W.printNumber("Length", CVR.length());
650   return Error::success();
651 }
652 
653 Error CVSymbolDumper::dump(CVRecord<SymbolKind> &Record) {
654   SymbolVisitorCallbackPipeline Pipeline;
655   SymbolDeserializer Deserializer(ObjDelegate.get(), Container);
656   CVSymbolDumperImpl Dumper(Types, ObjDelegate.get(), W, CompilationCPUType,
657                             PrintRecordBytes);
658 
659   Pipeline.addCallbackToPipeline(Deserializer);
660   Pipeline.addCallbackToPipeline(Dumper);
661   CVSymbolVisitor Visitor(Pipeline);
662   auto Err = Visitor.visitSymbolRecord(Record);
663   CompilationCPUType = Dumper.getCompilationCPUType();
664   return Err;
665 }
666 
667 Error CVSymbolDumper::dump(const CVSymbolArray &Symbols) {
668   SymbolVisitorCallbackPipeline Pipeline;
669   SymbolDeserializer Deserializer(ObjDelegate.get(), Container);
670   CVSymbolDumperImpl Dumper(Types, ObjDelegate.get(), W, CompilationCPUType,
671                             PrintRecordBytes);
672 
673   Pipeline.addCallbackToPipeline(Deserializer);
674   Pipeline.addCallbackToPipeline(Dumper);
675   CVSymbolVisitor Visitor(Pipeline);
676   auto Err = Visitor.visitSymbolStream(Symbols);
677   CompilationCPUType = Dumper.getCompilationCPUType();
678   return Err;
679 }
680