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      1 //===- llvm-pdbdump.cpp - Dump debug info from a PDB file -------*- 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 // Dumps debug information present in PDB files.  This utility makes use of
     11 // the Microsoft Windows SDK, so will not compile or run on non-Windows
     12 // platforms.
     13 //
     14 //===----------------------------------------------------------------------===//
     15 
     16 #include "llvm-pdbdump.h"
     17 #include "CompilandDumper.h"
     18 #include "ExternalSymbolDumper.h"
     19 #include "FunctionDumper.h"
     20 #include "LinePrinter.h"
     21 #include "TypeDumper.h"
     22 #include "VariableDumper.h"
     23 
     24 #include "llvm/ADT/ArrayRef.h"
     25 #include "llvm/ADT/BitVector.h"
     26 #include "llvm/ADT/DenseMap.h"
     27 #include "llvm/ADT/StringExtras.h"
     28 #include "llvm/Config/config.h"
     29 #include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
     30 #include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
     31 #include "llvm/DebugInfo/PDB/IPDBSession.h"
     32 #include "llvm/DebugInfo/PDB/PDB.h"
     33 #include "llvm/DebugInfo/PDB/PDBSymbolCompiland.h"
     34 #include "llvm/DebugInfo/PDB/PDBSymbolData.h"
     35 #include "llvm/DebugInfo/PDB/PDBSymbolExe.h"
     36 #include "llvm/DebugInfo/PDB/PDBSymbolFunc.h"
     37 #include "llvm/DebugInfo/PDB/PDBSymbolThunk.h"
     38 #include "llvm/Support/CommandLine.h"
     39 #include "llvm/Support/ConvertUTF.h"
     40 #include "llvm/Support/FileSystem.h"
     41 #include "llvm/Support/Format.h"
     42 #include "llvm/Support/ManagedStatic.h"
     43 #include "llvm/Support/MemoryBuffer.h"
     44 #include "llvm/Support/PrettyStackTrace.h"
     45 #include "llvm/Support/Process.h"
     46 #include "llvm/Support/raw_ostream.h"
     47 #include "llvm/Support/Signals.h"
     48 
     49 #if defined(HAVE_DIA_SDK)
     50 #ifndef NOMINMAX
     51 #define NOMINMAX
     52 #endif
     53 #include <Windows.h>
     54 #endif
     55 
     56 using namespace llvm;
     57 
     58 namespace opts {
     59 
     60 enum class PDB_DumpType { ByType, ByObjFile, Both };
     61 
     62 cl::list<std::string> InputFilenames(cl::Positional,
     63                                      cl::desc("<input PDB files>"),
     64                                      cl::OneOrMore);
     65 
     66 cl::OptionCategory TypeCategory("Symbol Type Options");
     67 cl::OptionCategory FilterCategory("Filtering Options");
     68 cl::OptionCategory OtherOptions("Other Options");
     69 
     70 cl::opt<bool> Compilands("compilands", cl::desc("Display compilands"),
     71                          cl::cat(TypeCategory));
     72 cl::opt<bool> Symbols("symbols", cl::desc("Display symbols for each compiland"),
     73                       cl::cat(TypeCategory));
     74 cl::opt<bool> Globals("globals", cl::desc("Dump global symbols"),
     75                       cl::cat(TypeCategory));
     76 cl::opt<bool> Externals("externals", cl::desc("Dump external symbols"),
     77                         cl::cat(TypeCategory));
     78 cl::opt<bool> Types("types", cl::desc("Display types"), cl::cat(TypeCategory));
     79 cl::opt<bool>
     80     All("all", cl::desc("Implies all other options in 'Symbol Types' category"),
     81         cl::cat(TypeCategory));
     82 
     83 cl::opt<uint64_t> LoadAddress(
     84     "load-address",
     85     cl::desc("Assume the module is loaded at the specified address"),
     86     cl::cat(OtherOptions));
     87 
     88 cl::opt<bool> DumpHeaders("dump-headers", cl::desc("dump PDB headers"),
     89                           cl::cat(OtherOptions));
     90 cl::opt<bool> DumpStreamSizes("dump-stream-sizes",
     91                               cl::desc("dump PDB stream sizes"),
     92                               cl::cat(OtherOptions));
     93 cl::opt<bool> DumpStreamBlocks("dump-stream-blocks",
     94                                cl::desc("dump PDB stream blocks"),
     95                                cl::cat(OtherOptions));
     96 cl::opt<std::string> DumpStreamData("dump-stream", cl::desc("dump stream data"),
     97                                     cl::cat(OtherOptions));
     98 
     99 cl::list<std::string>
    100     ExcludeTypes("exclude-types",
    101                  cl::desc("Exclude types by regular expression"),
    102                  cl::ZeroOrMore, cl::cat(FilterCategory));
    103 cl::list<std::string>
    104     ExcludeSymbols("exclude-symbols",
    105                    cl::desc("Exclude symbols by regular expression"),
    106                    cl::ZeroOrMore, cl::cat(FilterCategory));
    107 cl::list<std::string>
    108     ExcludeCompilands("exclude-compilands",
    109                       cl::desc("Exclude compilands by regular expression"),
    110                       cl::ZeroOrMore, cl::cat(FilterCategory));
    111 
    112 cl::list<std::string> IncludeTypes(
    113     "include-types",
    114     cl::desc("Include only types which match a regular expression"),
    115     cl::ZeroOrMore, cl::cat(FilterCategory));
    116 cl::list<std::string> IncludeSymbols(
    117     "include-symbols",
    118     cl::desc("Include only symbols which match a regular expression"),
    119     cl::ZeroOrMore, cl::cat(FilterCategory));
    120 cl::list<std::string> IncludeCompilands(
    121     "include-compilands",
    122     cl::desc("Include only compilands those which match a regular expression"),
    123     cl::ZeroOrMore, cl::cat(FilterCategory));
    124 
    125 cl::opt<bool> ExcludeCompilerGenerated(
    126     "no-compiler-generated",
    127     cl::desc("Don't show compiler generated types and symbols"),
    128     cl::cat(FilterCategory));
    129 cl::opt<bool>
    130     ExcludeSystemLibraries("no-system-libs",
    131                            cl::desc("Don't show symbols from system libraries"),
    132                            cl::cat(FilterCategory));
    133 cl::opt<bool> NoClassDefs("no-class-definitions",
    134                           cl::desc("Don't display full class definitions"),
    135                           cl::cat(FilterCategory));
    136 cl::opt<bool> NoEnumDefs("no-enum-definitions",
    137                          cl::desc("Don't display full enum definitions"),
    138                          cl::cat(FilterCategory));
    139 }
    140 
    141 
    142 static void reportError(StringRef Input, StringRef Message) {
    143   if (Input == "-")
    144     Input = "<stdin>";
    145   errs() << Input << ": " << Message << "\n";
    146   errs().flush();
    147   exit(1);
    148 }
    149 
    150 static void reportError(StringRef Input, std::error_code EC) {
    151   reportError(Input, EC.message());
    152 }
    153 
    154 static std::error_code checkOffset(MemoryBufferRef M, uintptr_t Addr,
    155                                    const uint64_t Size) {
    156   if (Addr + Size < Addr || Addr + Size < Size ||
    157       Addr + Size > uintptr_t(M.getBufferEnd()) ||
    158       Addr < uintptr_t(M.getBufferStart())) {
    159     return std::make_error_code(std::errc::bad_address);
    160   }
    161   return std::error_code();
    162 }
    163 
    164 template <typename T>
    165 static std::error_code checkOffset(MemoryBufferRef M, ArrayRef<T> AR) {
    166   return checkOffset(M, uintptr_t(AR.data()), (uint64_t)AR.size() * sizeof(T));
    167 }
    168 
    169 static std::error_code checkOffset(MemoryBufferRef M, StringRef SR) {
    170   return checkOffset(M, uintptr_t(SR.data()), SR.size());
    171 }
    172 
    173 // Sets Obj unless any bytes in [addr, addr + size) fall outsize of m.
    174 // Returns unexpected_eof if error.
    175 template <typename T>
    176 static std::error_code getObject(const T *&Obj, MemoryBufferRef M,
    177                                  const void *Ptr,
    178                                  const uint64_t Size = sizeof(T)) {
    179   uintptr_t Addr = uintptr_t(Ptr);
    180   if (std::error_code EC = checkOffset(M, Addr, Size))
    181     return EC;
    182   Obj = reinterpret_cast<const T *>(Addr);
    183   return std::error_code();
    184 }
    185 
    186 static uint64_t bytesToBlocks(uint64_t NumBytes, uint64_t BlockSize) {
    187   return RoundUpToAlignment(NumBytes, BlockSize) / BlockSize;
    188 }
    189 
    190 static uint64_t blockToOffset(uint64_t BlockNumber, uint64_t BlockSize) {
    191   return BlockNumber * BlockSize;
    192 }
    193 
    194 static void dumpStructure(MemoryBufferRef M) {
    195   const PDB::SuperBlock *SB;
    196   if (auto EC = getObject(SB, M, M.getBufferStart()))
    197     reportError(M.getBufferIdentifier(), EC);
    198 
    199   if (opts::DumpHeaders) {
    200     outs() << "BlockSize: " << SB->BlockSize << '\n';
    201     outs() << "Unknown0: " << SB->Unknown0 << '\n';
    202     outs() << "NumBlocks: " << SB->NumBlocks << '\n';
    203     outs() << "NumDirectoryBytes: " << SB->NumDirectoryBytes << '\n';
    204     outs() << "Unknown1: " << SB->Unknown1 << '\n';
    205     outs() << "BlockMapAddr: " << SB->BlockMapAddr << '\n';
    206   }
    207 
    208   // We don't support blocksizes which aren't a multiple of four bytes.
    209   if (SB->BlockSize % sizeof(support::ulittle32_t) != 0)
    210     reportError(M.getBufferIdentifier(),
    211                 std::make_error_code(std::errc::illegal_byte_sequence));
    212 
    213   // We don't support directories whose sizes aren't a multiple of four bytes.
    214   if (SB->NumDirectoryBytes % sizeof(support::ulittle32_t) != 0)
    215     reportError(M.getBufferIdentifier(),
    216                 std::make_error_code(std::errc::illegal_byte_sequence));
    217 
    218   // The number of blocks which comprise the directory is a simple function of
    219   // the number of bytes it contains.
    220   uint64_t NumDirectoryBlocks =
    221       bytesToBlocks(SB->NumDirectoryBytes, SB->BlockSize);
    222   if (opts::DumpHeaders)
    223     outs() << "NumDirectoryBlocks: " << NumDirectoryBlocks << '\n';
    224 
    225   // The block map, as we understand it, is a block which consists of a list of
    226   // block numbers.
    227   // It is unclear what would happen if the number of blocks couldn't fit on a
    228   // single block.
    229   if (NumDirectoryBlocks > SB->BlockSize / sizeof(support::ulittle32_t))
    230     reportError(M.getBufferIdentifier(),
    231                 std::make_error_code(std::errc::illegal_byte_sequence));
    232 
    233 
    234   uint64_t BlockMapOffset = (uint64_t)SB->BlockMapAddr * SB->BlockSize;
    235   if (opts::DumpHeaders)
    236     outs() << "BlockMapOffset: " << BlockMapOffset << '\n';
    237 
    238   // The directory is not contiguous.  Instead, the block map contains a
    239   // contiguous list of block numbers whose contents, when concatenated in
    240   // order, make up the directory.
    241   auto DirectoryBlocks =
    242       makeArrayRef(reinterpret_cast<const support::ulittle32_t *>(
    243                        M.getBufferStart() + BlockMapOffset),
    244                    NumDirectoryBlocks);
    245   if (auto EC = checkOffset(M, DirectoryBlocks))
    246     reportError(M.getBufferIdentifier(), EC);
    247 
    248   if (opts::DumpHeaders) {
    249     outs() << "DirectoryBlocks: [";
    250     for (const support::ulittle32_t &DirectoryBlockAddr : DirectoryBlocks) {
    251       if (&DirectoryBlockAddr != &DirectoryBlocks.front())
    252         outs() << ", ";
    253       outs() << DirectoryBlockAddr;
    254     }
    255     outs() << "]\n";
    256   }
    257 
    258   bool SeenNumStreams = false;
    259   uint32_t NumStreams = 0;
    260   std::vector<uint32_t> StreamSizes;
    261   DenseMap<uint32_t, std::vector<uint32_t>> StreamMap;
    262   uint32_t StreamIdx = 0;
    263   uint64_t DirectoryBytesRead = 0;
    264   // The structure of the directory is as follows:
    265   //    struct PDBDirectory {
    266   //      uint32_t NumStreams;
    267   //      uint32_t StreamSizes[NumStreams];
    268   //      uint32_t StreamMap[NumStreams][];
    269   //    };
    270   //
    271   //  Empty streams don't consume entries in the StreamMap.
    272   for (uint32_t DirectoryBlockAddr : DirectoryBlocks) {
    273     uint64_t DirectoryBlockOffset =
    274         blockToOffset(DirectoryBlockAddr, SB->BlockSize);
    275     auto DirectoryBlock =
    276         makeArrayRef(reinterpret_cast<const support::ulittle32_t *>(
    277                          M.getBufferStart() + DirectoryBlockOffset),
    278                      SB->BlockSize / sizeof(support::ulittle32_t));
    279     if (auto EC = checkOffset(M, DirectoryBlock))
    280       reportError(M.getBufferIdentifier(), EC);
    281 
    282     // We read data out of the directory four bytes at a time.  Depending on
    283     // where we are in the directory, the contents may be: the number of streams
    284     // in the directory, a stream's size, or a block in the stream map.
    285     for (uint32_t Data : DirectoryBlock) {
    286       // Don't read beyond the end of the directory.
    287       if (DirectoryBytesRead == SB->NumDirectoryBytes)
    288         break;
    289 
    290       DirectoryBytesRead += sizeof(Data);
    291 
    292       // This data must be the number of streams if we haven't seen it yet.
    293       if (!SeenNumStreams) {
    294         NumStreams = Data;
    295         SeenNumStreams = true;
    296         continue;
    297       }
    298       // This data must be a stream size if we have not seen them all yet.
    299       if (StreamSizes.size() < NumStreams) {
    300         // It seems like some streams have their set to -1 when their contents
    301         // are not present.  Treat them like empty streams for now.
    302         if (Data == UINT32_MAX)
    303           StreamSizes.push_back(0);
    304         else
    305           StreamSizes.push_back(Data);
    306         continue;
    307       }
    308 
    309       // This data must be a stream block number if we have seen all of the
    310       // stream sizes.
    311       std::vector<uint32_t> *StreamBlocks = nullptr;
    312       // Figure out which stream this block number belongs to.
    313       while (StreamIdx < NumStreams) {
    314         uint64_t NumExpectedStreamBlocks =
    315             bytesToBlocks(StreamSizes[StreamIdx], SB->BlockSize);
    316         StreamBlocks = &StreamMap[StreamIdx];
    317         if (NumExpectedStreamBlocks > StreamBlocks->size())
    318           break;
    319         ++StreamIdx;
    320       }
    321       // It seems this block doesn't belong to any stream?  The stream is either
    322       // corrupt or something more mysterious is going on.
    323       if (StreamIdx == NumStreams)
    324         reportError(M.getBufferIdentifier(),
    325                     std::make_error_code(std::errc::illegal_byte_sequence));
    326 
    327       StreamBlocks->push_back(Data);
    328     }
    329   }
    330 
    331   // We should have read exactly SB->NumDirectoryBytes bytes.
    332   assert(DirectoryBytesRead == SB->NumDirectoryBytes);
    333 
    334   if (opts::DumpHeaders)
    335     outs() << "NumStreams: " << NumStreams << '\n';
    336   if (opts::DumpStreamSizes)
    337     for (uint32_t StreamIdx = 0; StreamIdx < NumStreams; ++StreamIdx)
    338       outs() << "StreamSizes[" << StreamIdx << "]: " << StreamSizes[StreamIdx]
    339              << '\n';
    340 
    341   if (opts::DumpStreamBlocks) {
    342     for (uint32_t StreamIdx = 0; StreamIdx < NumStreams; ++StreamIdx) {
    343       outs() << "StreamBlocks[" << StreamIdx << "]: [";
    344       std::vector<uint32_t> &StreamBlocks = StreamMap[StreamIdx];
    345       for (uint32_t &StreamBlock : StreamBlocks) {
    346         if (&StreamBlock != &StreamBlocks.front())
    347           outs() << ", ";
    348         outs() << StreamBlock;
    349       }
    350       outs() << "]\n";
    351     }
    352   }
    353 
    354   StringRef DumpStreamStr = opts::DumpStreamData;
    355   uint32_t DumpStreamNum;
    356   if (!DumpStreamStr.getAsInteger(/*Radix=*/0U, DumpStreamNum) &&
    357       DumpStreamNum < NumStreams) {
    358     uint32_t StreamBytesRead = 0;
    359     uint32_t StreamSize = StreamSizes[DumpStreamNum];
    360     std::vector<uint32_t> &StreamBlocks = StreamMap[DumpStreamNum];
    361     for (uint32_t &StreamBlockAddr : StreamBlocks) {
    362       uint64_t StreamBlockOffset = blockToOffset(StreamBlockAddr, SB->BlockSize);
    363       uint32_t BytesLeftToReadInStream = StreamSize - StreamBytesRead;
    364       if (BytesLeftToReadInStream == 0)
    365         break;
    366 
    367       uint32_t BytesToReadInBlock = std::min(
    368           BytesLeftToReadInStream, static_cast<uint32_t>(SB->BlockSize));
    369       auto StreamBlockData =
    370           StringRef(M.getBufferStart() + StreamBlockOffset, BytesToReadInBlock);
    371       if (auto EC = checkOffset(M, StreamBlockData))
    372         reportError(M.getBufferIdentifier(), EC);
    373 
    374       outs() << StreamBlockData;
    375       StreamBytesRead += StreamBlockData.size();
    376     }
    377   }
    378 }
    379 
    380 static void dumpInput(StringRef Path) {
    381   if (opts::DumpHeaders || !opts::DumpStreamData.empty()) {
    382     ErrorOr<std::unique_ptr<MemoryBuffer>> ErrorOrBuffer =
    383         MemoryBuffer::getFileOrSTDIN(Path, /*FileSize=*/-1,
    384                                      /*RequiresNullTerminator=*/false);
    385 
    386     if (std::error_code EC = ErrorOrBuffer.getError())
    387       reportError(Path, EC);
    388 
    389     std::unique_ptr<MemoryBuffer> &Buffer = ErrorOrBuffer.get();
    390 
    391     dumpStructure(Buffer->getMemBufferRef());
    392 
    393     outs().flush();
    394     return;
    395   }
    396 
    397   std::unique_ptr<IPDBSession> Session;
    398   PDB_ErrorCode Error = loadDataForPDB(PDB_ReaderType::DIA, Path, Session);
    399   switch (Error) {
    400   case PDB_ErrorCode::Success:
    401     break;
    402   case PDB_ErrorCode::NoPdbImpl:
    403     outs() << "Reading PDBs is not supported on this platform.\n";
    404     return;
    405   case PDB_ErrorCode::InvalidPath:
    406     outs() << "Unable to load PDB at '" << Path
    407            << "'.  Check that the file exists and is readable.\n";
    408     return;
    409   case PDB_ErrorCode::InvalidFileFormat:
    410     outs() << "Unable to load PDB at '" << Path
    411            << "'.  The file has an unrecognized format.\n";
    412     return;
    413   default:
    414     outs() << "Unable to load PDB at '" << Path
    415            << "'.  An unknown error occured.\n";
    416     return;
    417   }
    418   if (opts::LoadAddress)
    419     Session->setLoadAddress(opts::LoadAddress);
    420 
    421   LinePrinter Printer(2, outs());
    422 
    423   auto GlobalScope(Session->getGlobalScope());
    424   std::string FileName(GlobalScope->getSymbolsFileName());
    425 
    426   WithColor(Printer, PDB_ColorItem::None).get() << "Summary for ";
    427   WithColor(Printer, PDB_ColorItem::Path).get() << FileName;
    428   Printer.Indent();
    429   uint64_t FileSize = 0;
    430 
    431   Printer.NewLine();
    432   WithColor(Printer, PDB_ColorItem::Identifier).get() << "Size";
    433   if (!sys::fs::file_size(FileName, FileSize)) {
    434     Printer << ": " << FileSize << " bytes";
    435   } else {
    436     Printer << ": (Unable to obtain file size)";
    437   }
    438 
    439   Printer.NewLine();
    440   WithColor(Printer, PDB_ColorItem::Identifier).get() << "Guid";
    441   Printer << ": " << GlobalScope->getGuid();
    442 
    443   Printer.NewLine();
    444   WithColor(Printer, PDB_ColorItem::Identifier).get() << "Age";
    445   Printer << ": " << GlobalScope->getAge();
    446 
    447   Printer.NewLine();
    448   WithColor(Printer, PDB_ColorItem::Identifier).get() << "Attributes";
    449   Printer << ": ";
    450   if (GlobalScope->hasCTypes())
    451     outs() << "HasCTypes ";
    452   if (GlobalScope->hasPrivateSymbols())
    453     outs() << "HasPrivateSymbols ";
    454   Printer.Unindent();
    455 
    456   if (opts::Compilands) {
    457     Printer.NewLine();
    458     WithColor(Printer, PDB_ColorItem::SectionHeader).get()
    459         << "---COMPILANDS---";
    460     Printer.Indent();
    461     auto Compilands = GlobalScope->findAllChildren<PDBSymbolCompiland>();
    462     CompilandDumper Dumper(Printer);
    463     while (auto Compiland = Compilands->getNext())
    464       Dumper.start(*Compiland, false);
    465     Printer.Unindent();
    466   }
    467 
    468   if (opts::Types) {
    469     Printer.NewLine();
    470     WithColor(Printer, PDB_ColorItem::SectionHeader).get() << "---TYPES---";
    471     Printer.Indent();
    472     TypeDumper Dumper(Printer);
    473     Dumper.start(*GlobalScope);
    474     Printer.Unindent();
    475   }
    476 
    477   if (opts::Symbols) {
    478     Printer.NewLine();
    479     WithColor(Printer, PDB_ColorItem::SectionHeader).get() << "---SYMBOLS---";
    480     Printer.Indent();
    481     auto Compilands = GlobalScope->findAllChildren<PDBSymbolCompiland>();
    482     CompilandDumper Dumper(Printer);
    483     while (auto Compiland = Compilands->getNext())
    484       Dumper.start(*Compiland, true);
    485     Printer.Unindent();
    486   }
    487 
    488   if (opts::Globals) {
    489     Printer.NewLine();
    490     WithColor(Printer, PDB_ColorItem::SectionHeader).get() << "---GLOBALS---";
    491     Printer.Indent();
    492     {
    493       FunctionDumper Dumper(Printer);
    494       auto Functions = GlobalScope->findAllChildren<PDBSymbolFunc>();
    495       while (auto Function = Functions->getNext()) {
    496         Printer.NewLine();
    497         Dumper.start(*Function, FunctionDumper::PointerType::None);
    498       }
    499     }
    500     {
    501       auto Vars = GlobalScope->findAllChildren<PDBSymbolData>();
    502       VariableDumper Dumper(Printer);
    503       while (auto Var = Vars->getNext())
    504         Dumper.start(*Var);
    505     }
    506     {
    507       auto Thunks = GlobalScope->findAllChildren<PDBSymbolThunk>();
    508       CompilandDumper Dumper(Printer);
    509       while (auto Thunk = Thunks->getNext())
    510         Dumper.dump(*Thunk);
    511     }
    512     Printer.Unindent();
    513   }
    514   if (opts::Externals) {
    515     Printer.NewLine();
    516     WithColor(Printer, PDB_ColorItem::SectionHeader).get() << "---EXTERNALS---";
    517     Printer.Indent();
    518     ExternalSymbolDumper Dumper(Printer);
    519     Dumper.start(*GlobalScope);
    520   }
    521   outs().flush();
    522 }
    523 
    524 int main(int argc_, const char *argv_[]) {
    525   // Print a stack trace if we signal out.
    526   sys::PrintStackTraceOnErrorSignal();
    527   PrettyStackTraceProgram X(argc_, argv_);
    528 
    529   SmallVector<const char *, 256> argv;
    530   SpecificBumpPtrAllocator<char> ArgAllocator;
    531   std::error_code EC = sys::Process::GetArgumentVector(
    532       argv, makeArrayRef(argv_, argc_), ArgAllocator);
    533   if (EC) {
    534     errs() << "error: couldn't get arguments: " << EC.message() << '\n';
    535     return 1;
    536   }
    537 
    538   llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
    539 
    540   cl::ParseCommandLineOptions(argv.size(), argv.data(), "LLVM PDB Dumper\n");
    541   if (opts::All) {
    542     opts::Compilands = true;
    543     opts::Symbols = true;
    544     opts::Globals = true;
    545     opts::Types = true;
    546     opts::Externals = true;
    547   }
    548   if (opts::ExcludeCompilerGenerated) {
    549     opts::ExcludeTypes.push_back("__vc_attributes");
    550     opts::ExcludeCompilands.push_back("* Linker *");
    551   }
    552   if (opts::ExcludeSystemLibraries) {
    553     opts::ExcludeCompilands.push_back(
    554         "f:\\binaries\\Intermediate\\vctools\\crt_bld");
    555   }
    556 
    557 #if defined(HAVE_DIA_SDK)
    558   CoInitializeEx(nullptr, COINIT_MULTITHREADED);
    559 #endif
    560 
    561   std::for_each(opts::InputFilenames.begin(), opts::InputFilenames.end(),
    562                 dumpInput);
    563 
    564 #if defined(HAVE_DIA_SDK)
    565   CoUninitialize();
    566 #endif
    567 
    568   return 0;
    569 }
    570