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//===- PDBSymbol.cpp - base class for user-facing symbol types --*- 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/PDBSymbol.h"
#include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
#include "llvm/DebugInfo/PDB/IPDBRawSymbol.h"
#include "llvm/DebugInfo/PDB/IPDBSession.h"
#include "llvm/DebugInfo/PDB/PDBExtras.h"
#include "llvm/DebugInfo/PDB/PDBSymbolAnnotation.h"
#include "llvm/DebugInfo/PDB/PDBSymbolBlock.h"
#include "llvm/DebugInfo/PDB/PDBSymbolCompiland.h"
#include "llvm/DebugInfo/PDB/PDBSymbolCompilandDetails.h"
#include "llvm/DebugInfo/PDB/PDBSymbolCompilandEnv.h"
#include "llvm/DebugInfo/PDB/PDBSymbolCustom.h"
#include "llvm/DebugInfo/PDB/PDBSymbolData.h"
#include "llvm/DebugInfo/PDB/PDBSymbolExe.h"
#include "llvm/DebugInfo/PDB/PDBSymbolFunc.h"
#include "llvm/DebugInfo/PDB/PDBSymbolFuncDebugEnd.h"
#include "llvm/DebugInfo/PDB/PDBSymbolFuncDebugStart.h"
#include "llvm/DebugInfo/PDB/PDBSymbolLabel.h"
#include "llvm/DebugInfo/PDB/PDBSymbolPublicSymbol.h"
#include "llvm/DebugInfo/PDB/PDBSymbolThunk.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeArray.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeBaseClass.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeCustom.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeDimension.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeFriend.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionArg.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeManaged.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypePointer.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeTypedef.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeVTable.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeVTableShape.h"
#include "llvm/DebugInfo/PDB/PDBSymbolUnknown.h"
#include "llvm/DebugInfo/PDB/PDBSymbolUsingNamespace.h"
#include "llvm/DebugInfo/PDB/PDBTypes.h"
#include <algorithm>
#include <memory>
using namespace llvm;
using namespace llvm::pdb;
PDBSymbol::PDBSymbol(const IPDBSession &PDBSession) : Session(PDBSession) {}
PDBSymbol::PDBSymbol(PDBSymbol &&Other)
: Session(Other.Session), RawSymbol(std::move(Other.RawSymbol)) {}
PDBSymbol::~PDBSymbol() = default;
#define FACTORY_SYMTAG_CASE(Tag, Type) \
case PDB_SymType::Tag: \
return std::unique_ptr<PDBSymbol>(new Type(PDBSession));
std::unique_ptr<PDBSymbol>
PDBSymbol::createSymbol(const IPDBSession &PDBSession, PDB_SymType Tag) {
switch (Tag) {
FACTORY_SYMTAG_CASE(Exe, PDBSymbolExe)
FACTORY_SYMTAG_CASE(Compiland, PDBSymbolCompiland)
FACTORY_SYMTAG_CASE(CompilandDetails, PDBSymbolCompilandDetails)
FACTORY_SYMTAG_CASE(CompilandEnv, PDBSymbolCompilandEnv)
FACTORY_SYMTAG_CASE(Function, PDBSymbolFunc)
FACTORY_SYMTAG_CASE(Block, PDBSymbolBlock)
FACTORY_SYMTAG_CASE(Data, PDBSymbolData)
FACTORY_SYMTAG_CASE(Annotation, PDBSymbolAnnotation)
FACTORY_SYMTAG_CASE(Label, PDBSymbolLabel)
FACTORY_SYMTAG_CASE(PublicSymbol, PDBSymbolPublicSymbol)
FACTORY_SYMTAG_CASE(UDT, PDBSymbolTypeUDT)
FACTORY_SYMTAG_CASE(Enum, PDBSymbolTypeEnum)
FACTORY_SYMTAG_CASE(FunctionSig, PDBSymbolTypeFunctionSig)
FACTORY_SYMTAG_CASE(PointerType, PDBSymbolTypePointer)
FACTORY_SYMTAG_CASE(ArrayType, PDBSymbolTypeArray)
FACTORY_SYMTAG_CASE(BuiltinType, PDBSymbolTypeBuiltin)
FACTORY_SYMTAG_CASE(Typedef, PDBSymbolTypeTypedef)
FACTORY_SYMTAG_CASE(BaseClass, PDBSymbolTypeBaseClass)
FACTORY_SYMTAG_CASE(Friend, PDBSymbolTypeFriend)
FACTORY_SYMTAG_CASE(FunctionArg, PDBSymbolTypeFunctionArg)
FACTORY_SYMTAG_CASE(FuncDebugStart, PDBSymbolFuncDebugStart)
FACTORY_SYMTAG_CASE(FuncDebugEnd, PDBSymbolFuncDebugEnd)
FACTORY_SYMTAG_CASE(UsingNamespace, PDBSymbolUsingNamespace)
FACTORY_SYMTAG_CASE(VTableShape, PDBSymbolTypeVTableShape)
FACTORY_SYMTAG_CASE(VTable, PDBSymbolTypeVTable)
FACTORY_SYMTAG_CASE(Custom, PDBSymbolCustom)
FACTORY_SYMTAG_CASE(Thunk, PDBSymbolThunk)
FACTORY_SYMTAG_CASE(CustomType, PDBSymbolTypeCustom)
FACTORY_SYMTAG_CASE(ManagedType, PDBSymbolTypeManaged)
FACTORY_SYMTAG_CASE(Dimension, PDBSymbolTypeDimension)
default:
return std::unique_ptr<PDBSymbol>(new PDBSymbolUnknown(PDBSession));
}
}
std::unique_ptr<PDBSymbol>
PDBSymbol::create(const IPDBSession &PDBSession,
std::unique_ptr<IPDBRawSymbol> RawSymbol) {
auto SymbolPtr = createSymbol(PDBSession, RawSymbol->getSymTag());
SymbolPtr->RawSymbol = RawSymbol.get();
SymbolPtr->OwnedRawSymbol = std::move(RawSymbol);
return SymbolPtr;
}
std::unique_ptr<PDBSymbol> PDBSymbol::create(const IPDBSession &PDBSession,
IPDBRawSymbol &RawSymbol) {
auto SymbolPtr = createSymbol(PDBSession, RawSymbol.getSymTag());
SymbolPtr->RawSymbol = &RawSymbol;
return SymbolPtr;
}
void PDBSymbol::defaultDump(raw_ostream &OS, int Indent,
PdbSymbolIdField ShowFlags,
PdbSymbolIdField RecurseFlags) const {
RawSymbol->dump(OS, Indent, ShowFlags, RecurseFlags);
}
void PDBSymbol::dumpProperties() const {
outs() << "\n";
defaultDump(outs(), 0, PdbSymbolIdField::All, PdbSymbolIdField::None);
outs().flush();
}
void PDBSymbol::dumpChildStats() const {
TagStats Stats;
getChildStats(Stats);
outs() << "\n";
for (auto &Stat : Stats) {
outs() << Stat.first << ": " << Stat.second << "\n";
}
outs().flush();
}
PDB_SymType PDBSymbol::getSymTag() const { return RawSymbol->getSymTag(); }
uint32_t PDBSymbol::getSymIndexId() const { return RawSymbol->getSymIndexId(); }
std::unique_ptr<IPDBEnumSymbols> PDBSymbol::findAllChildren() const {
return findAllChildren(PDB_SymType::None);
}
std::unique_ptr<IPDBEnumSymbols>
PDBSymbol::findAllChildren(PDB_SymType Type) const {
return RawSymbol->findChildren(Type);
}
std::unique_ptr<IPDBEnumSymbols>
PDBSymbol::findChildren(PDB_SymType Type, StringRef Name,
PDB_NameSearchFlags Flags) const {
return RawSymbol->findChildren(Type, Name, Flags);
}
std::unique_ptr<IPDBEnumSymbols>
PDBSymbol::findChildrenByRVA(PDB_SymType Type, StringRef Name,
PDB_NameSearchFlags Flags, uint32_t RVA) const {
return RawSymbol->findChildrenByRVA(Type, Name, Flags, RVA);
}
std::unique_ptr<IPDBEnumSymbols>
PDBSymbol::findInlineFramesByVA(uint64_t VA) const {
return RawSymbol->findInlineFramesByVA(VA);
}
std::unique_ptr<IPDBEnumSymbols>
PDBSymbol::findInlineFramesByRVA(uint32_t RVA) const {
return RawSymbol->findInlineFramesByRVA(RVA);
}
std::unique_ptr<IPDBEnumLineNumbers>
PDBSymbol::findInlineeLinesByVA(uint64_t VA, uint32_t Length) const {
return RawSymbol->findInlineeLinesByVA(VA, Length);
}
std::unique_ptr<IPDBEnumLineNumbers>
PDBSymbol::findInlineeLinesByRVA(uint32_t RVA, uint32_t Length) const {
return RawSymbol->findInlineeLinesByRVA(RVA, Length);
}
std::string PDBSymbol::getName() const { return RawSymbol->getName(); }
std::unique_ptr<IPDBEnumSymbols>
PDBSymbol::getChildStats(TagStats &Stats) const {
std::unique_ptr<IPDBEnumSymbols> Result(findAllChildren());
if (!Result)
return nullptr;
Stats.clear();
while (auto Child = Result->getNext()) {
++Stats[Child->getSymTag()];
}
Result->reset();
return Result;
}
std::unique_ptr<PDBSymbol> PDBSymbol::getSymbolByIdHelper(uint32_t Id) const {
return Session.getSymbolById(Id);
}
void llvm::pdb::dumpSymbolIdField(raw_ostream &OS, StringRef Name,
SymIndexId Value, int Indent,
const IPDBSession &Session,
PdbSymbolIdField FieldId,
PdbSymbolIdField ShowFlags,
PdbSymbolIdField RecurseFlags) {
if ((FieldId & ShowFlags) == PdbSymbolIdField::None)
return;
OS << "\n";
OS.indent(Indent);
OS << Name << ": " << Value;
// Don't recurse unless the user requested it.
if ((FieldId & RecurseFlags) == PdbSymbolIdField::None)
return;
// And obviously don't recurse on the symbol itself.
if (FieldId == PdbSymbolIdField::SymIndexId)
return;
auto Child = Session.getSymbolById(Value);
// It could have been a placeholder symbol for a type we don't yet support,
// so just exit in that case.
if (!Child)
return;
// Don't recurse more than once, so pass PdbSymbolIdField::None) for the
// recurse flags.
Child->defaultDump(OS, Indent + 2, ShowFlags, PdbSymbolIdField::None);
}
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