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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/Native/PDBFileBuilder.h"
#include "llvm/ADT/BitVector.h"
#include "llvm/DebugInfo/MSF/MSFBuilder.h"
#include "llvm/DebugInfo/PDB/GenericError.h"
#include "llvm/DebugInfo/PDB/Native/DbiStream.h"
#include "llvm/DebugInfo/PDB/Native/DbiStreamBuilder.h"
#include "llvm/DebugInfo/PDB/Native/InfoStream.h"
#include "llvm/DebugInfo/PDB/Native/InfoStreamBuilder.h"
#include "llvm/DebugInfo/PDB/Native/RawError.h"
#include "llvm/DebugInfo/PDB/Native/StringTableBuilder.h"
#include "llvm/DebugInfo/PDB/Native/TpiStream.h"
#include "llvm/DebugInfo/PDB/Native/TpiStreamBuilder.h"
#include "llvm/Support/BinaryStream.h"
#include "llvm/Support/BinaryStreamWriter.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, NamedStreams);
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;
}
StringTableBuilder &PDBFileBuilder::getStringTableBuilder() { return Strings; }
Error PDBFileBuilder::addNamedStream(StringRef Name, uint32_t Size) {
auto ExpectedStream = Msf->addStream(Size);
if (!ExpectedStream)
return ExpectedStream.takeError();
NamedStreams.set(Name, *ExpectedStream);
return Error::success();
}
Expected<msf::MSFLayout> PDBFileBuilder::finalizeMsfLayout() {
uint32_t StringTableSize = Strings.finalize();
if (auto EC = addNamedStream("/names", StringTableSize))
return std::move(EC);
if (auto EC = addNamedStream("/LinkInfo", 0))
return std::move(EC);
if (auto EC = addNamedStream("/src/headerblock", 0))
return std::move(EC);
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();
}
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),
llvm::support::little);
BinaryStreamWriter 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);
BinaryStreamWriter DW(*DirStream);
if (auto EC = DW.writeInteger<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;
}
uint32_t StringTableStreamNo = 0;
if (!NamedStreams.get("/names", StringTableStreamNo))
return llvm::make_error<pdb::RawError>(raw_error_code::no_stream);
auto NS = WritableMappedBlockStream::createIndexedStream(Layout, Buffer,
StringTableStreamNo);
BinaryStreamWriter NSWriter(*NS);
if (auto EC = Strings.commit(NSWriter))
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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