forked from OSchip/llvm-project
78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
//===- InfoStream.cpp - PDB Info Stream (Stream 1) Access -------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/DebugInfo/PDB/Raw/InfoStream.h"
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#include "llvm/ADT/BitVector.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/DebugInfo/MSF/StreamReader.h"
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#include "llvm/DebugInfo/MSF/StreamWriter.h"
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#include "llvm/DebugInfo/PDB/Raw/PDBFile.h"
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#include "llvm/DebugInfo/PDB/Raw/RawConstants.h"
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#include "llvm/DebugInfo/PDB/Raw/RawError.h"
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#include "llvm/DebugInfo/PDB/Raw/RawTypes.h"
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using namespace llvm;
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using namespace llvm::codeview;
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using namespace llvm::msf;
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using namespace llvm::pdb;
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InfoStream::InfoStream(std::unique_ptr<MappedBlockStream> Stream)
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: Stream(std::move(Stream)) {}
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Error InfoStream::reload() {
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StreamReader Reader(*Stream);
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const InfoStreamHeader *H;
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if (auto EC = Reader.readObject(H))
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return joinErrors(
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std::move(EC),
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make_error<RawError>(raw_error_code::corrupt_file,
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"PDB Stream does not contain a header."));
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switch (H->Version) {
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case PdbImplVC70:
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case PdbImplVC80:
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case PdbImplVC110:
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case PdbImplVC140:
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break;
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default:
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return make_error<RawError>(raw_error_code::corrupt_file,
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"Unsupported PDB stream version.");
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}
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Version = H->Version;
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Signature = H->Signature;
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Age = H->Age;
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Guid = H->Guid;
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return NamedStreams.load(Reader);
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}
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uint32_t InfoStream::getNamedStreamIndex(llvm::StringRef Name) const {
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uint32_t Result;
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if (!NamedStreams.tryGetValue(Name, Result))
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return 0;
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return Result;
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}
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iterator_range<StringMapConstIterator<uint32_t>>
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InfoStream::named_streams() const {
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return NamedStreams.entries();
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}
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PdbRaw_ImplVer InfoStream::getVersion() const {
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return static_cast<PdbRaw_ImplVer>(Version);
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}
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uint32_t InfoStream::getSignature() const { return Signature; }
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uint32_t InfoStream::getAge() const { return Age; }
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PDB_UniqueId InfoStream::getGuid() const { return Guid; }
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