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//===- PDBSymbolData.cpp - PDB data (e.g. variable) accessors ---*- 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/PDBSymbolData.h"
#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"
#include "llvm/DebugInfo/PDB/IPDBSectionContrib.h"
#include "llvm/DebugInfo/PDB/IPDBSession.h"
#include "llvm/DebugInfo/PDB/PDBSymDumper.h"
using namespace llvm;
using namespace llvm::pdb;
void PDBSymbolData::dump(PDBSymDumper &Dumper) const { Dumper.dump(*this); }
std::unique_ptr<IPDBEnumLineNumbers> PDBSymbolData::getLineNumbers() const {
auto Len = RawSymbol->getLength();
Len = Len ? Len : 1;
if (auto RVA = RawSymbol->getRelativeVirtualAddress())
return Session.findLineNumbersByRVA(RVA, Len);
if (auto Section = RawSymbol->getAddressSection())
return Session.findLineNumbersBySectOffset(
Section, RawSymbol->getAddressOffset(), Len);
return nullptr;
}
uint32_t PDBSymbolData::getCompilandId() const {
if (auto Lines = getLineNumbers()) {
if (auto FirstLine = Lines->getNext())
return FirstLine->getCompilandId();
}
uint32_t DataSection = RawSymbol->getAddressSection();
uint32_t DataOffset = RawSymbol->getAddressOffset();
if (DataSection == 0) {
if (auto RVA = RawSymbol->getRelativeVirtualAddress())
Session.addressForRVA(RVA, DataSection, DataOffset);
}
if (DataSection) {
if (auto SecContribs = Session.getSectionContribs()) {
while (auto Section = SecContribs->getNext()) {
if (Section->getAddressSection() == DataSection &&
Section->getAddressOffset() <= DataOffset &&
(Section->getAddressOffset() + Section->getLength()) > DataOffset)
return Section->getCompilandId();
}
}
} else {
auto LexParentId = RawSymbol->getLexicalParentId();
while (auto LexParent = Session.getSymbolById(LexParentId)) {
if (LexParent->getSymTag() == PDB_SymType::Exe)
break;
if (LexParent->getSymTag() == PDB_SymType::Compiland)
return LexParentId;
LexParentId = LexParent->getRawSymbol().getLexicalParentId();
}
}
return 0;
}
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