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//===- StreamUtil.cpp - PDB stream utilities --------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "StreamUtil.h"
#include "FormatUtil.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/InfoStream.h"
#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
#include "llvm/DebugInfo/PDB/Native/TpiStream.h"
using namespace llvm;
using namespace llvm::pdb;
void llvm::pdb::discoverStreamPurposes(PDBFile &File,
SmallVectorImpl<std::string> &Purposes,
uint32_t MaxLen) {
// 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, DbiModuleDescriptor> ModStreams;
DenseMap<uint16_t, std::string> NamedStreams;
if (Dbi) {
const DbiModuleList &Modules = Dbi->modules();
for (uint32_t I = 0; I < Modules.getModuleCount(); ++I) {
DbiModuleDescriptor Descriptor = Modules.getModuleDescriptor(I);
uint16_t SN = Descriptor.getModuleStreamIndex();
if (SN != kInvalidStreamIndex)
ModStreams[SN] = Descriptor;
}
}
if (Info) {
for (auto &NSE : Info->named_streams()) {
if (NSE.second != kInvalidStreamIndex)
NamedStreams[NSE.second] = NSE.first();
}
}
Purposes.resize(StreamCount);
for (uint16_t StreamIdx = 0; StreamIdx < StreamCount; ++StreamIdx) {
std::string Value;
if (StreamIdx == OldMSFDirectory)
Value = truncateStringBack("Old MSF Directory", MaxLen);
else if (StreamIdx == StreamPDB)
Value = truncateStringBack("PDB Stream", MaxLen);
else if (StreamIdx == StreamDBI)
Value = truncateStringBack("DBI Stream", MaxLen);
else if (StreamIdx == StreamTPI)
Value = truncateStringBack("TPI Stream", MaxLen);
else if (StreamIdx == StreamIPI)
Value = truncateStringBack("IPI Stream", MaxLen);
else if (Dbi && StreamIdx == Dbi->getGlobalSymbolStreamIndex())
Value = truncateStringBack("Global Symbol Hash", MaxLen);
else if (Dbi && StreamIdx == Dbi->getPublicSymbolStreamIndex())
Value = truncateStringBack("Public Symbol Hash", MaxLen);
else if (Dbi && StreamIdx == Dbi->getSymRecordStreamIndex())
Value = truncateStringBack("Public Symbol Records", MaxLen);
else if (Tpi && StreamIdx == Tpi->getTypeHashStreamIndex())
Value = truncateStringBack("TPI Hash", MaxLen);
else if (Tpi && StreamIdx == Tpi->getTypeHashStreamAuxIndex())
Value = truncateStringBack("TPI Aux Hash", MaxLen);
else if (Ipi && StreamIdx == Ipi->getTypeHashStreamIndex())
Value = truncateStringBack("IPI Hash", MaxLen);
else if (Ipi && StreamIdx == Ipi->getTypeHashStreamAuxIndex())
Value = truncateStringBack("IPI Aux Hash", MaxLen);
else if (Dbi &&
StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::Exception))
Value = truncateStringBack("Exception Data", MaxLen);
else if (Dbi && StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::Fixup))
Value = truncateStringBack("Fixup Data", MaxLen);
else if (Dbi && StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::FPO))
Value = truncateStringBack("FPO Data", MaxLen);
else if (Dbi &&
StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::NewFPO))
Value = truncateStringBack("New FPO Data", MaxLen);
else if (Dbi &&
StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::OmapFromSrc))
Value = truncateStringBack("Omap From Source Data", MaxLen);
else if (Dbi &&
StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::OmapToSrc))
Value = truncateStringBack("Omap To Source Data", MaxLen);
else if (Dbi && StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::Pdata))
Value = truncateStringBack("Pdata", MaxLen);
else if (Dbi &&
StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::SectionHdr))
Value = truncateStringBack("Section Header Data", MaxLen);
else if (Dbi &&
StreamIdx ==
Dbi->getDebugStreamIndex(DbgHeaderType::SectionHdrOrig))
Value = truncateStringBack("Section Header Original Data", MaxLen);
else if (Dbi &&
StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::TokenRidMap))
Value = truncateStringBack("Token Rid Data", MaxLen);
else if (Dbi && StreamIdx == Dbi->getDebugStreamIndex(DbgHeaderType::Xdata))
Value = truncateStringBack("Xdata", MaxLen);
else {
auto ModIter = ModStreams.find(StreamIdx);
auto NSIter = NamedStreams.find(StreamIdx);
if (ModIter != ModStreams.end()) {
Value = truncateQuotedNameFront(
"Module", ModIter->second.getModuleName(), MaxLen);
} else if (NSIter != NamedStreams.end()) {
Value = truncateQuotedNameBack("Named Stream", NSIter->second, MaxLen);
} else {
Value = "???";
}
}
Purposes[StreamIdx] = Value;
}
// 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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