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//===- StreamUtil.cpp - PDB stream utilities --------------------*- 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 "StreamUtil.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DenseMapInfo.h"
#include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptor.h"
#include "llvm/DebugInfo/PDB/Native/DbiModuleList.h"
#include "llvm/DebugInfo/PDB/Native/DbiStream.h"
#include "llvm/DebugInfo/PDB/Native/FormatUtil.h"
#include "llvm/DebugInfo/PDB/Native/InfoStream.h"
#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
#include "llvm/DebugInfo/PDB/Native/TpiStream.h"
using namespace llvm;
using namespace llvm::pdb;
std::string StreamInfo::getLongName() const {
if (Purpose == StreamPurpose::NamedStream)
return formatv("Named Stream \"{0}\"", Name).str();
if (Purpose == StreamPurpose::ModuleStream)
return formatv("Module \"{0}\"", Name).str();
return Name;
}
StreamInfo StreamInfo::createStream(StreamPurpose Purpose, StringRef Name,
uint32_t StreamIndex) {
StreamInfo Result;
Result.Name = std::string(Name);
Result.StreamIndex = StreamIndex;
Result.Purpose = Purpose;
return Result;
}
StreamInfo StreamInfo::createModuleStream(StringRef Module,
uint32_t StreamIndex, uint32_t Modi) {
StreamInfo Result;
Result.Name = std::string(Module);
Result.StreamIndex = StreamIndex;
Result.ModuleIndex = Modi;
Result.Purpose = StreamPurpose::ModuleStream;
return Result;
}
static inline StreamInfo stream(StreamPurpose Purpose, StringRef Label,
uint32_t Idx) {
return StreamInfo::createStream(Purpose, Label, Idx);
}
static inline StreamInfo moduleStream(StringRef Label, uint32_t StreamIdx,
uint32_t Modi) {
return StreamInfo::createModuleStream(Label, StreamIdx, Modi);
}
struct IndexedModuleDescriptor {
uint32_t Modi;
DbiModuleDescriptor Descriptor;
};
void llvm::pdb::discoverStreamPurposes(PDBFile &File,
SmallVectorImpl<StreamInfo> &Streams) {
// It's OK if we fail to load some of these streams, we still attempt to print
// what we can.
auto Dbi = File.getPDBDbiStream();
auto Tpi = File.getPDBTpiStream();
auto Ipi = File.getPDBIpiStream();
auto Info = File.getPDBInfoStream();
uint32_t StreamCount = File.getNumStreams();
DenseMap<uint16_t, IndexedModuleDescriptor> ModStreams;
DenseMap<uint16_t, std::string> NamedStreams;
if (Dbi) {
const DbiModuleList &Modules = Dbi->modules();
for (uint32_t I = 0; I < Modules.getModuleCount(); ++I) {
IndexedModuleDescriptor IMD;
IMD.Modi = I;
IMD.Descriptor = Modules.getModuleDescriptor(I);
uint16_t SN = IMD.Descriptor.getModuleStreamIndex();
if (SN != kInvalidStreamIndex)
ModStreams[SN] = IMD;
}
}
if (Info) {
for (auto &NSE : Info->named_streams()) {
if (NSE.second != kInvalidStreamIndex)
NamedStreams[NSE.second] = std::string(NSE.first());
}
}
Streams.resize(StreamCount);
for (uint32_t StreamIdx = 0; StreamIdx < StreamCount; ++StreamIdx) {
if (StreamIdx == OldMSFDirectory)
Streams[StreamIdx] =
stream(StreamPurpose::Other, "Old MSF Directory", StreamIdx);
else if (StreamIdx == StreamPDB)
Streams[StreamIdx] = stream(StreamPurpose::PDB, "PDB Stream", StreamIdx);
else if (StreamIdx == StreamDBI)
Streams[StreamIdx] = stream(StreamPurpose::DBI, "DBI Stream", StreamIdx);
else if (StreamIdx == StreamTPI)
Streams[StreamIdx] = stream(StreamPurpose::TPI, "TPI Stream", StreamIdx);
else if (StreamIdx == StreamIPI)
Streams[StreamIdx] = stream(StreamPurpose::IPI, "IPI Stream", StreamIdx);
else if (Dbi && StreamIdx == Dbi->getGlobalSymbolStreamIndex())
Streams[StreamIdx] =
stream(StreamPurpose::GlobalHash, "Global Symbol Hash", StreamIdx);
else if (Dbi && StreamIdx == Dbi->getPublicSymbolStreamIndex())
Streams[StreamIdx] =
stream(StreamPurpose::PublicHash, "Public Symbol Hash", StreamIdx);
else if (Dbi && StreamIdx == Dbi->getSymRecordStreamIndex())
Streams[StreamIdx] =
stream(StreamPurpose::Symbols, "Symbol Records", StreamIdx);
else if (Tpi && StreamIdx == Tpi->getTypeHashStreamIndex())
Streams[StreamIdx] =
stream(StreamPurpose::TpiHash, "TPI Hash", StreamIdx);
else if (Tpi && StreamIdx == Tpi->getTypeHashStreamAuxIndex())
Streams[StreamIdx] =
stream(StreamPurpose::Other, "TPI Aux Hash", StreamIdx);
else if (Ipi && StreamIdx == Ipi->getTypeHashStreamIndex())
Streams[StreamIdx] =
stream(StreamPurpose::IpiHash, "IPI Hash", StreamIdx);
else if (Ipi && StreamIdx == Ipi->getTypeHashStreamAuxIndex())
Streams[StreamIdx] =
stream(StreamPurpose::Other, "IPI Aux Hash", StreamIdx);
else if (Dbi &&
StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::Exception))
Streams[StreamIdx] =
stream(StreamPurpose::Other, "Exception Data", StreamIdx);
else if (Dbi && StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::Fixup))
Streams[StreamIdx] =
stream(StreamPurpose::Other, "Fixup Data", StreamIdx);
else if (Dbi && StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::FPO))
Streams[StreamIdx] = stream(StreamPurpose::Other, "FPO Data", StreamIdx);
else if (Dbi &&
StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::NewFPO))
Streams[StreamIdx] =
stream(StreamPurpose::Other, "New FPO Data", StreamIdx);
else if (Dbi &&
StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::OmapFromSrc))
Streams[StreamIdx] =
stream(StreamPurpose::Other, "Omap From Source Data", StreamIdx);
else if (Dbi &&
StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::OmapToSrc))
Streams[StreamIdx] =
stream(StreamPurpose::Other, "Omap To Source Data", StreamIdx);
else if (Dbi && StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::Pdata))
Streams[StreamIdx] = stream(StreamPurpose::Other, "Pdata", StreamIdx);
else if (Dbi &&
StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::SectionHdr))
Streams[StreamIdx] =
stream(StreamPurpose::Other, "Section Header Data", StreamIdx);
else if (Dbi &&
StreamIdx ==
Dbi->getDebugStreamIndex(DbgHeaderType::SectionHdrOrig))
Streams[StreamIdx] = stream(StreamPurpose::Other,
"Section Header Original Data", StreamIdx);
else if (Dbi &&
StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::TokenRidMap))
Streams[StreamIdx] =
stream(StreamPurpose::Other, "Token Rid Data", StreamIdx);
else if (Dbi && StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::Xdata))
Streams[StreamIdx] = stream(StreamPurpose::Other, "Xdata", StreamIdx);
else {
auto ModIter = ModStreams.find(StreamIdx);
auto NSIter = NamedStreams.find(StreamIdx);
if (ModIter != ModStreams.end()) {
Streams[StreamIdx] =
moduleStream(ModIter->second.Descriptor.getModuleName(), StreamIdx,
ModIter->second.Modi);
} else if (NSIter != NamedStreams.end()) {
Streams[StreamIdx] =
stream(StreamPurpose::NamedStream, NSIter->second, StreamIdx);
} else {
Streams[StreamIdx] = stream(StreamPurpose::Other, "???", StreamIdx);
}
}
}
// Consume errors from missing streams.
if (!Dbi)
consumeError(Dbi.takeError());
if (!Tpi)
consumeError(Tpi.takeError());
if (!Ipi)
consumeError(Ipi.takeError());
if (!Info)
consumeError(Info.takeError());
}
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