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