tools/llvm-pdbutil/YAMLOutputStyle.cpp

   1 //===- YAMLOutputStyle.cpp ------------------------------------ *- 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 "YAMLOutputStyle.h"
  10
  11 #include "PdbYaml.h"
  12 #include "llvm-pdbutil.h"
  13
  14 #include "llvm/DebugInfo/CodeView/DebugChecksumsSubsection.h"
  15 #include "llvm/DebugInfo/CodeView/DebugSubsection.h"
  16 #include "llvm/DebugInfo/CodeView/DebugUnknownSubsection.h"
  17 #include "llvm/DebugInfo/CodeView/StringsAndChecksums.h"
  18 #include "llvm/DebugInfo/MSF/MappedBlockStream.h"
  19 #include "llvm/DebugInfo/PDB/Native/DbiStream.h"
  20 #include "llvm/DebugInfo/PDB/Native/GlobalsStream.h"
  21 #include "llvm/DebugInfo/PDB/Native/InfoStream.h"
  22 #include "llvm/DebugInfo/PDB/Native/ModuleDebugStream.h"
  23 #include "llvm/DebugInfo/PDB/Native/PDBFile.h"
  24 #include "llvm/DebugInfo/PDB/Native/PublicsStream.h"
  25 #include "llvm/DebugInfo/PDB/Native/RawConstants.h"
  26 #include "llvm/DebugInfo/PDB/Native/SymbolStream.h"
  27 #include "llvm/DebugInfo/PDB/Native/TpiStream.h"
  28
  29 using namespace llvm;
  30 using namespace llvm::codeview;
  31 using namespace llvm::pdb;
  32
  33 static bool checkModuleSubsection(opts::ModuleSubsection MS) {
  34   return any_of(opts::pdb2yaml::DumpModuleSubsections,
  35                 [=](opts::ModuleSubsection M) {
  36                   return M == MS || M == opts::ModuleSubsection::All;
  37                 });
  38 }
  39
  40 YAMLOutputStyle::YAMLOutputStyle(PDBFile &File)
  41     : File(File), Out(outs()), Obj(File.getAllocator()) {
  42   Out.setWriteDefaultValues(!opts::pdb2yaml::Minimal);
  43 }
  44
  45 Error YAMLOutputStyle::dump() {
  46   if (opts::pdb2yaml::StreamDirectory)
  47     opts::pdb2yaml::StreamMetadata = true;
  48
  49   if (auto EC = dumpFileHeaders())
  50     return EC;
  51
  52   if (auto EC = dumpStreamMetadata())
  53     return EC;
  54
  55   if (auto EC = dumpStreamDirectory())
  56     return EC;
  57
  58   if (auto EC = dumpStringTable())
  59     return EC;
  60
  61   if (auto EC = dumpPDBStream())
  62     return EC;
  63
  64   if (auto EC = dumpDbiStream())
  65     return EC;
  66
  67   if (auto EC = dumpTpiStream())
  68     return EC;
  69
  70   if (auto EC = dumpIpiStream())
  71     return EC;
  72
  73   if (auto EC = dumpPublics())
  74     return EC;
  75
  76   flush();
  77   return Error::success();
  78 }
  79
  80
  81 Error YAMLOutputStyle::dumpFileHeaders() {
  82   if (opts::pdb2yaml::NoFileHeaders)
  83     return Error::success();
  84
  85   yaml::MSFHeaders Headers;
  86   Obj.Headers.emplace();
  87   Obj.Headers->SuperBlock.NumBlocks = File.getBlockCount();
  88   Obj.Headers->SuperBlock.BlockMapAddr = File.getBlockMapIndex();
  89   Obj.Headers->SuperBlock.BlockSize = File.getBlockSize();
  90   auto Blocks = File.getDirectoryBlockArray();
  91   Obj.Headers->DirectoryBlocks.assign(Blocks.begin(), Blocks.end());
  92   Obj.Headers->NumDirectoryBlocks = File.getNumDirectoryBlocks();
  93   Obj.Headers->SuperBlock.NumDirectoryBytes = File.getNumDirectoryBytes();
  94   Obj.Headers->NumStreams =
  95       opts::pdb2yaml::StreamMetadata ? File.getNumStreams() : 0;
  96   Obj.Headers->SuperBlock.FreeBlockMapBlock = File.getFreeBlockMapBlock();
  97   Obj.Headers->SuperBlock.Unknown1 = File.getUnknown1();
  98   Obj.Headers->FileSize = File.getFileSize();
  99
 100   return Error::success();
 101 }
 102
 103 Error YAMLOutputStyle::dumpStringTable() {
 104   bool RequiresStringTable = opts::pdb2yaml::DumpModuleFiles ||
 105                              !opts::pdb2yaml::DumpModuleSubsections.empty();
 106   bool RequestedStringTable = opts::pdb2yaml::StringTable;
 107   if (!RequiresStringTable && !RequestedStringTable)
 108     return Error::success();
 109
 110   auto ExpectedST = File.getStringTable();
 111   if (!ExpectedST)
 112     return ExpectedST.takeError();
 113
 114   Obj.StringTable.emplace();
 115   const auto &ST = ExpectedST.get();
 116   for (auto ID : ST.name_ids()) {
 117     auto S = ST.getStringForID(ID);
 118     if (!S)
 119       return S.takeError();
 120     if (S->empty())
 121       continue;
 122     Obj.StringTable->push_back(*S);
 123   }
 124   return Error::success();
 125 }
 126
 127 Error YAMLOutputStyle::dumpStreamMetadata() {
 128   if (!opts::pdb2yaml::StreamMetadata)
 129     return Error::success();
 130
 131   Obj.StreamSizes.emplace();
 132   Obj.StreamSizes->assign(File.getStreamSizes().begin(),
 133                           File.getStreamSizes().end());
 134   return Error::success();
 135 }
 136
 137 Error YAMLOutputStyle::dumpStreamDirectory() {
 138   if (!opts::pdb2yaml::StreamDirectory)
 139     return Error::success();
 140
 141   auto StreamMap = File.getStreamMap();
 142   Obj.StreamMap.emplace();
 143   for (auto &Stream : StreamMap) {
 144     pdb::yaml::StreamBlockList BlockList;
 145     BlockList.Blocks.assign(Stream.begin(), Stream.end());
 146     Obj.StreamMap->push_back(BlockList);
 147   }
 148
 149   return Error::success();
 150 }
 151
 152 Error YAMLOutputStyle::dumpPDBStream() {
 153   if (!opts::pdb2yaml::PdbStream)
 154     return Error::success();
 155
 156   auto IS = File.getPDBInfoStream();
 157   if (!IS)
 158     return IS.takeError();
 159
 160   auto &InfoS = IS.get();
 161   Obj.PdbStream.emplace();
 162   Obj.PdbStream->Age = InfoS.getAge();
 163   Obj.PdbStream->Guid = InfoS.getGuid();
 164   Obj.PdbStream->Signature = InfoS.getSignature();
 165   Obj.PdbStream->Version = InfoS.getVersion();
 166   Obj.PdbStream->Features = InfoS.getFeatureSignatures();
 167
 168   return Error::success();
 169 }
 170
 171 static opts::ModuleSubsection convertSubsectionKind(DebugSubsectionKind K) {
 172   switch (K) {
 173   case DebugSubsectionKind::CrossScopeExports:
 174     return opts::ModuleSubsection::CrossScopeExports;
 175   case DebugSubsectionKind::CrossScopeImports:
 176     return opts::ModuleSubsection::CrossScopeImports;
 177   case DebugSubsectionKind::FileChecksums:
 178     return opts::ModuleSubsection::FileChecksums;
 179   case DebugSubsectionKind::InlineeLines:
 180     return opts::ModuleSubsection::InlineeLines;
 181   case DebugSubsectionKind::Lines:
 182     return opts::ModuleSubsection::Lines;
 183   case DebugSubsectionKind::Symbols:
 184     return opts::ModuleSubsection::Symbols;
 185   case DebugSubsectionKind::StringTable:
 186     return opts::ModuleSubsection::StringTable;
 187   case DebugSubsectionKind::FrameData:
 188     return opts::ModuleSubsection::FrameData;
 189   default:
 190     return opts::ModuleSubsection::Unknown;
 191   }
 192   llvm_unreachable("Unreachable!");
 193 }
 194
 195 Error YAMLOutputStyle::dumpDbiStream() {
 196   if (!opts::pdb2yaml::DbiStream)
 197     return Error::success();
 198
 199   if (!File.hasPDBDbiStream())
 200     return Error::success();
 201
 202   auto DbiS = File.getPDBDbiStream();
 203   if (!DbiS)
 204     return DbiS.takeError();
 205
 206   auto &DS = DbiS.get();
 207   Obj.DbiStream.emplace();
 208   Obj.DbiStream->Age = DS.getAge();
 209   Obj.DbiStream->BuildNumber = DS.getBuildNumber();
 210   Obj.DbiStream->Flags = DS.getFlags();
 211   Obj.DbiStream->MachineType = DS.getMachineType();
 212   Obj.DbiStream->PdbDllRbld = DS.getPdbDllRbld();
 213   Obj.DbiStream->PdbDllVersion = DS.getPdbDllVersion();
 214   Obj.DbiStream->VerHeader = DS.getDbiVersion();
 215   if (opts::pdb2yaml::DumpModules) {
 216     const auto &Modules = DS.modules();
 217     for (uint32_t I = 0; I < Modules.getModuleCount(); ++I) {
 218       DbiModuleDescriptor MI = Modules.getModuleDescriptor(I);
 219
 220       Obj.DbiStream->ModInfos.emplace_back();
 221       yaml::PdbDbiModuleInfo &DMI = Obj.DbiStream->ModInfos.back();
 222
 223       DMI.Mod = MI.getModuleName();
 224       DMI.Obj = MI.getObjFileName();
 225       if (opts::pdb2yaml::DumpModuleFiles) {
 226         auto Files = Modules.source_files(I);
 227         DMI.SourceFiles.assign(Files.begin(), Files.end());
 228       }
 229
 230       uint16_t ModiStream = MI.getModuleStreamIndex();
 231       if (ModiStream == kInvalidStreamIndex)
 232         continue;
 233
 234       auto ModStreamData = File.createIndexedStream(ModiStream);
 235       pdb::ModuleDebugStreamRef ModS(MI, std::move(ModStreamData));
 236       if (auto EC = ModS.reload())
 237         return EC;
 238
 239       auto ExpectedST = File.getStringTable();
 240       if (!ExpectedST)
 241         return ExpectedST.takeError();
 242       if (!opts::pdb2yaml::DumpModuleSubsections.empty() &&
 243           ModS.hasDebugSubsections()) {
 244         auto ExpectedChecksums = ModS.findChecksumsSubsection();
 245         if (!ExpectedChecksums)
 246           return ExpectedChecksums.takeError();
 247
 248         StringsAndChecksumsRef SC(ExpectedST->getStringTable(),
 249                                   *ExpectedChecksums);
 250
 251         for (const auto &SS : ModS.subsections()) {
 252           opts::ModuleSubsection OptionKind = convertSubsectionKind(SS.kind());
 253           if (!checkModuleSubsection(OptionKind))
 254             continue;
 255
 256           auto Converted =
 257               CodeViewYAML::YAMLDebugSubsection::fromCodeViewSubection(SC, SS);
 258           if (!Converted)
 259             return Converted.takeError();
 260           DMI.Subsections.push_back(*Converted);
 261         }
 262       }
 263
 264       if (opts::pdb2yaml::DumpModuleSyms) {
 265         DMI.Modi.emplace();
 266
 267         DMI.Modi->Signature = ModS.signature();
 268         bool HadError = false;
 269         for (auto &Sym : ModS.symbols(&HadError)) {
 270           auto ES = CodeViewYAML::SymbolRecord::fromCodeViewSymbol(Sym);
 271           if (!ES)
 272             return ES.takeError();
 273
 274           DMI.Modi->Symbols.push_back(*ES);
 275         }
 276       }
 277     }
 278   }
 279   return Error::success();
 280 }
 281
 282 Error YAMLOutputStyle::dumpTpiStream() {
 283   if (!opts::pdb2yaml::TpiStream)
 284     return Error::success();
 285
 286   auto TpiS = File.getPDBTpiStream();
 287   if (!TpiS)
 288     return TpiS.takeError();
 289
 290   auto &TS = TpiS.get();
 291   Obj.TpiStream.emplace();
 292   Obj.TpiStream->Version = TS.getTpiVersion();
 293   for (auto &Record : TS.types(nullptr)) {
 294     auto ExpectedRecord = CodeViewYAML::LeafRecord::fromCodeViewRecord(Record);
 295     if (!ExpectedRecord)
 296       return ExpectedRecord.takeError();
 297     Obj.TpiStream->Records.push_back(*ExpectedRecord);
 298   }
 299
 300   return Error::success();
 301 }
 302
 303 Error YAMLOutputStyle::dumpIpiStream() {
 304   if (!opts::pdb2yaml::IpiStream)
 305     return Error::success();
 306
 307   auto InfoS = File.getPDBInfoStream();
 308   if (!InfoS)
 309     return InfoS.takeError();
 310   if (!InfoS->containsIdStream())
 311     return Error::success();
 312
 313   auto IpiS = File.getPDBIpiStream();
 314   if (!IpiS)
 315     return IpiS.takeError();
 316
 317   auto &IS = IpiS.get();
 318   Obj.IpiStream.emplace();
 319   Obj.IpiStream->Version = IS.getTpiVersion();
 320   for (auto &Record : IS.types(nullptr)) {
 321     auto ExpectedRecord = CodeViewYAML::LeafRecord::fromCodeViewRecord(Record);
 322     if (!ExpectedRecord)
 323       return ExpectedRecord.takeError();
 324
 325     Obj.IpiStream->Records.push_back(*ExpectedRecord);
 326   }
 327
 328   return Error::success();
 329 }
 330
 331 Error YAMLOutputStyle::dumpPublics() {
 332   if (!opts::pdb2yaml::PublicsStream)
 333     return Error::success();
 334
 335   Obj.PublicsStream.emplace();
 336   auto ExpectedPublics = File.getPDBPublicsStream();
 337   if (!ExpectedPublics) {
 338     llvm::consumeError(ExpectedPublics.takeError());
 339     return Error::success();
 340   }
 341
 342   PublicsStream &Publics = *ExpectedPublics;
 343   const GSIHashTable &PublicsTable = Publics.getPublicsTable();
 344
 345   auto ExpectedSyms = File.getPDBSymbolStream();
 346   if (!ExpectedSyms) {
 347     llvm::consumeError(ExpectedSyms.takeError());
 348     return Error::success();
 349   }
 350
 351   BinaryStreamRef SymStream =
 352       ExpectedSyms->getSymbolArray().getUnderlyingStream();
 353   for (uint32_t PubSymOff : PublicsTable) {
 354     Expected<CVSymbol> Sym = readSymbolFromStream(SymStream, PubSymOff);
 355     if (!Sym)
 356       return Sym.takeError();
 357     auto ES = CodeViewYAML::SymbolRecord::fromCodeViewSymbol(*Sym);
 358     if (!ES)
 359       return ES.takeError();
 360
 361     Obj.PublicsStream->PubSyms.push_back(*ES);
 362   }
 363
 364   return Error::success();
 365 }
 366
 367 void YAMLOutputStyle::flush() {
 368   Out << Obj;
 369   outs().flush();
 370 }