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3784bf85f3
The DBI stream contains a lot of bookkeeping information for other streams. In particular it contains information about section contributions and linked modules. This patch is a first attempt at parsing some of the information out of the DBI stream. It currently only parses and dumps the headers of the DBI stream, so none of the module data or section contribution data is pulled out. This is just a proof of concept that we understand the basic properties of the DBI stream's metadata, and followup patches will try to extract more detailed information out. Differential Revision: http://reviews.llvm.org/D19500 Reviewed By: majnemer, ruiu git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@267585 91177308-0d34-0410-b5e6-96231b3b80d8
54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
//===- PDBInfoStream.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/PDBInfoStream.h"
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#include "llvm/ADT/BitVector.h"
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#include "llvm/ADT/SmallVector.h"
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using namespace llvm;
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PDBInfoStream::PDBInfoStream(PDBFile &File) : Pdb(File), Stream1(1, File) {}
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std::error_code PDBInfoStream::reload() {
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Stream1.setOffset(0);
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support::ulittle32_t Value;
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Stream1.readObject(&Version);
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if (Version < PdbRaw_ImplVer::PdbImplVC70)
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return std::make_error_code(std::errc::not_supported);
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Stream1.readObject(&Value);
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Signature = Value;
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Stream1.readObject(&Value);
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Age = Value;
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Stream1.readObject(&Guid);
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NamedStreams.load(Stream1);
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return std::error_code();
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}
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uint32_t PDBInfoStream::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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PdbRaw_ImplVer PDBInfoStream::getVersion() const {
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return static_cast<PdbRaw_ImplVer>(Version);
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}
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uint32_t PDBInfoStream::getSignature() const { return Signature; }
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uint32_t PDBInfoStream::getAge() const { return Age; }
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PDB_UniqueId PDBInfoStream::getGuid() const { return Guid; }
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