83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
//===- InfoStreamBuilder.cpp - PDB Info Stream Creation ---------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/DebugInfo/PDB/Native/InfoStreamBuilder.h"
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#include "llvm/DebugInfo/MSF/MSFBuilder.h"
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#include "llvm/DebugInfo/MSF/MappedBlockStream.h"
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#include "llvm/DebugInfo/PDB/Native/InfoStream.h"
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#include "llvm/DebugInfo/PDB/Native/NamedStreamMap.h"
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#include "llvm/DebugInfo/PDB/Native/PDBFileBuilder.h"
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#include "llvm/DebugInfo/PDB/Native/RawError.h"
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#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
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#include "llvm/Support/BinaryStreamWriter.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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InfoStreamBuilder::InfoStreamBuilder(msf::MSFBuilder &Msf,
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NamedStreamMap &NamedStreams)
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: Msf(Msf), Ver(PdbRaw_ImplVer::PdbImplVC70), Age(0),
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NamedStreams(NamedStreams) {
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::memset(&Guid, 0, sizeof(Guid));
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}
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void InfoStreamBuilder::setVersion(PdbRaw_ImplVer V) { Ver = V; }
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void InfoStreamBuilder::addFeature(PdbRaw_FeatureSig Sig) {
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Features.push_back(Sig);
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}
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void InfoStreamBuilder::setHashPDBContentsToGUID(bool B) {
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HashPDBContentsToGUID = B;
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}
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void InfoStreamBuilder::setAge(uint32_t A) { Age = A; }
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void InfoStreamBuilder::setSignature(uint32_t S) { Signature = S; }
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void InfoStreamBuilder::setGuid(GUID G) { Guid = G; }
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Error InfoStreamBuilder::finalizeMsfLayout() {
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uint32_t Length = sizeof(InfoStreamHeader) +
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NamedStreams.calculateSerializedLength() +
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(Features.size() + 1) * sizeof(uint32_t);
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if (auto EC = Msf.setStreamSize(StreamPDB, Length))
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return EC;
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return Error::success();
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}
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Error InfoStreamBuilder::commit(const msf::MSFLayout &Layout,
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WritableBinaryStreamRef Buffer) const {
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auto InfoS = WritableMappedBlockStream::createIndexedStream(
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Layout, Buffer, StreamPDB, Msf.getAllocator());
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BinaryStreamWriter Writer(*InfoS);
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InfoStreamHeader H;
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// Leave the build id fields 0 so they can be set as the last step before
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// committing the file to disk.
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::memset(&H, 0, sizeof(H));
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H.Version = Ver;
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if (auto EC = Writer.writeObject(H))
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return EC;
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if (auto EC = NamedStreams.commit(Writer))
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return EC;
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if (auto EC = Writer.writeInteger(0))
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return EC;
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for (auto E : Features) {
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if (auto EC = Writer.writeEnum(E))
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return EC;
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}
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assert(Writer.bytesRemaining() == 0);
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return Error::success();
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}
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