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//===- PDBFileBuilder.cpp - PDB File Creation -------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/DebugInfo/PDB/Raw/PDBFileBuilder.h"
#include "llvm/ADT/BitVector.h"
#include "llvm/DebugInfo/MSF/MSFBuilder.h"
#include "llvm/DebugInfo/MSF/StreamInterface.h"
#include "llvm/DebugInfo/MSF/StreamWriter.h"
#include "llvm/DebugInfo/PDB/GenericError.h"
#include "llvm/DebugInfo/PDB/Raw/DbiStream.h"
#include "llvm/DebugInfo/PDB/Raw/DbiStreamBuilder.h"
#include "llvm/DebugInfo/PDB/Raw/InfoStream.h"
#include "llvm/DebugInfo/PDB/Raw/InfoStreamBuilder.h"
#include "llvm/DebugInfo/PDB/Raw/RawError.h"
#include "llvm/DebugInfo/PDB/Raw/TpiStream.h"
#include "llvm/DebugInfo/PDB/Raw/TpiStreamBuilder.h"
using namespace llvm;
using namespace llvm::codeview;
using namespace llvm::msf;
using namespace llvm::pdb;
using namespace llvm::support;
PDBFileBuilder::PDBFileBuilder(BumpPtrAllocator &Allocator)
: Allocator(Allocator) {}
Error PDBFileBuilder::initialize(uint32_t BlockSize) {
auto ExpectedMsf = MSFBuilder::create(Allocator, BlockSize);
if (!ExpectedMsf)
return ExpectedMsf.takeError();
Msf = llvm::make_unique<MSFBuilder>(std::move(*ExpectedMsf));
return Error::success();
}
MSFBuilder &PDBFileBuilder::getMsfBuilder() { return *Msf; }
InfoStreamBuilder &PDBFileBuilder::getInfoBuilder() {
if (!Info)
Info = llvm::make_unique<InfoStreamBuilder>(*Msf);
return *Info;
}
DbiStreamBuilder &PDBFileBuilder::getDbiBuilder() {
if (!Dbi)
Dbi = llvm::make_unique<DbiStreamBuilder>(*Msf);
return *Dbi;
}
TpiStreamBuilder &PDBFileBuilder::getTpiBuilder() {
if (!Tpi)
Tpi = llvm::make_unique<TpiStreamBuilder>(*Msf, StreamTPI);
return *Tpi;
}
TpiStreamBuilder &PDBFileBuilder::getIpiBuilder() {
if (!Ipi)
Ipi = llvm::make_unique<TpiStreamBuilder>(*Msf, StreamIPI);
return *Ipi;
}
Expected<msf::MSFLayout> PDBFileBuilder::finalizeMsfLayout() const {
if (Info) {
if (auto EC = Info->finalizeMsfLayout())
return std::move(EC);
}
if (Dbi) {
if (auto EC = Dbi->finalizeMsfLayout())
return std::move(EC);
}
if (Tpi) {
if (auto EC = Tpi->finalizeMsfLayout())
return std::move(EC);
}
if (Ipi) {
if (auto EC = Ipi->finalizeMsfLayout())
return std::move(EC);
}
return Msf->build();
}
Expected<std::unique_ptr<PDBFile>>
PDBFileBuilder::build(std::unique_ptr<msf::WritableStream> PdbFileBuffer) {
auto ExpectedLayout = finalizeMsfLayout();
if (!ExpectedLayout)
return ExpectedLayout.takeError();
auto File = llvm::make_unique<PDBFile>(std::move(PdbFileBuffer), Allocator);
File->ContainerLayout = *ExpectedLayout;
if (Info) {
auto ExpectedInfo = Info->build(*File);
if (!ExpectedInfo)
return ExpectedInfo.takeError();
File->Info = std::move(*ExpectedInfo);
}
if (Dbi) {
auto ExpectedDbi = Dbi->build(*File);
if (!ExpectedDbi)
return ExpectedDbi.takeError();
File->Dbi = std::move(*ExpectedDbi);
}
if (Tpi) {
auto ExpectedTpi = Tpi->build(*File);
if (!ExpectedTpi)
return ExpectedTpi.takeError();
File->Tpi = std::move(*ExpectedTpi);
}
if (Ipi) {
auto ExpectedIpi = Ipi->build(*File);
if (!ExpectedIpi)
return ExpectedIpi.takeError();
File->Ipi = std::move(*ExpectedIpi);
}
if (File->Info && File->Dbi && File->Info->getAge() != File->Dbi->getAge())
return llvm::make_error<RawError>(
raw_error_code::corrupt_file,
"PDB Stream Age doesn't match Dbi Stream Age!");
return std::move(File);
}
Error PDBFileBuilder::commit(StringRef Filename) {
auto ExpectedLayout = finalizeMsfLayout();
if (!ExpectedLayout)
return ExpectedLayout.takeError();
auto &Layout = *ExpectedLayout;
uint64_t Filesize = Layout.SB->BlockSize * Layout.SB->NumBlocks;
auto OutFileOrError = FileOutputBuffer::create(Filename, Filesize);
if (OutFileOrError.getError())
return llvm::make_error<pdb::GenericError>(generic_error_code::invalid_path,
Filename);
FileBufferByteStream Buffer(std::move(*OutFileOrError));
StreamWriter Writer(Buffer);
if (auto EC = Writer.writeObject(*Layout.SB))
return EC;
uint32_t BlockMapOffset =
msf::blockToOffset(Layout.SB->BlockMapAddr, Layout.SB->BlockSize);
Writer.setOffset(BlockMapOffset);
if (auto EC = Writer.writeArray(Layout.DirectoryBlocks))
return EC;
auto DirStream =
WritableMappedBlockStream::createDirectoryStream(Layout, Buffer);
StreamWriter DW(*DirStream);
if (auto EC =
DW.writeInteger(static_cast<uint32_t>(Layout.StreamSizes.size())))
return EC;
if (auto EC = DW.writeArray(Layout.StreamSizes))
return EC;
for (const auto &Blocks : Layout.StreamMap) {
if (auto EC = DW.writeArray(Blocks))
return EC;
}
if (Info) {
if (auto EC = Info->commit(Layout, Buffer))
return EC;
}
if (Dbi) {
if (auto EC = Dbi->commit(Layout, Buffer))
return EC;
}
if (Tpi) {
if (auto EC = Tpi->commit(Layout, Buffer))
return EC;
}
if (Ipi) {
if (auto EC = Ipi->commit(Layout, Buffer))
return EC;
}
return Buffer.commit();
}
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