2016-04-29 19:28:47 +02:00
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//===- InfoStream.cpp - PDB Info Stream (Stream 1) Access -------*- C++ -*-===//
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2016-04-26 18:20:00 +02:00
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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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2016-04-29 19:28:47 +02:00
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#include "llvm/DebugInfo/PDB/Raw/InfoStream.h"
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2016-04-26 18:20:00 +02:00
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#include "llvm/ADT/BitVector.h"
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#include "llvm/ADT/SmallVector.h"
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2016-05-25 22:37:03 +02:00
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#include "llvm/DebugInfo/CodeView/StreamReader.h"
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2016-05-02 20:09:21 +02:00
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#include "llvm/DebugInfo/PDB/Raw/RawConstants.h"
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2016-05-06 22:51:57 +02:00
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#include "llvm/DebugInfo/PDB/Raw/RawError.h"
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2016-04-26 18:20:00 +02:00
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using namespace llvm;
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2016-04-29 19:28:47 +02:00
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using namespace llvm::pdb;
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2016-04-26 18:20:00 +02:00
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2016-05-02 20:09:21 +02:00
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InfoStream::InfoStream(PDBFile &File) : Pdb(File), Stream(StreamPDB, File) {}
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2016-04-26 18:20:00 +02:00
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2016-05-06 22:51:57 +02:00
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Error InfoStream::reload() {
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2016-05-25 22:37:03 +02:00
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codeview::StreamReader Reader(Stream);
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2016-04-29 19:22:58 +02:00
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2016-05-02 20:09:21 +02:00
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struct Header {
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support::ulittle32_t Version;
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support::ulittle32_t Signature;
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support::ulittle32_t Age;
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PDB_UniqueId Guid;
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};
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2016-04-26 18:20:00 +02:00
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2016-05-02 20:09:21 +02:00
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Header H;
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2016-05-06 22:51:57 +02:00
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if (auto EC = Reader.readObject(&H))
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return make_error<RawError>(raw_error_code::corrupt_file,
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"PDB Stream does not contain a header.");
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2016-04-26 18:20:00 +02:00
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if (H.Version < PdbRaw_ImplVer::PdbImplVC70)
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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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2016-04-26 18:20:00 +02:00
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2016-05-02 20:09:21 +02:00
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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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2016-04-26 18:20:00 +02:00
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2016-05-06 22:51:57 +02:00
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return NamedStreams.load(Reader);
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}
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2016-04-29 19:28:47 +02:00
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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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2016-05-25 05:43:17 +02:00
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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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2016-04-29 19:28:47 +02:00
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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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2016-04-29 19:28:47 +02:00
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uint32_t InfoStream::getSignature() const { return Signature; }
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2016-04-29 19:28:47 +02:00
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uint32_t InfoStream::getAge() const { return Age; }
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2016-04-26 18:20:00 +02:00
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2016-04-29 19:28:47 +02:00
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PDB_UniqueId InfoStream::getGuid() const { return Guid; }
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