forked from OSchip/llvm-project
70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
//===- PDBSymbolData.cpp - PDB data (e.g. variable) accessors ---*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/DebugInfo/PDB/PDBSymbolData.h"
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#include "llvm/DebugInfo/PDB/IPDBSectionContrib.h"
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#include "llvm/DebugInfo/PDB/IPDBSession.h"
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#include "llvm/DebugInfo/PDB/PDBSymDumper.h"
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#include <utility>
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using namespace llvm;
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using namespace llvm::pdb;
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void PDBSymbolData::dump(PDBSymDumper &Dumper) const { Dumper.dump(*this); }
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std::unique_ptr<IPDBEnumLineNumbers> PDBSymbolData::getLineNumbers() const {
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auto Len = RawSymbol->getLength();
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Len = Len ? Len : 1;
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if (auto RVA = RawSymbol->getRelativeVirtualAddress())
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return Session.findLineNumbersByRVA(RVA, Len);
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if (auto Section = RawSymbol->getAddressSection())
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return Session.findLineNumbersBySectOffset(
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Section, RawSymbol->getAddressOffset(), Len);
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return nullptr;
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}
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uint32_t PDBSymbolData::getCompilandId() const {
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if (auto Lines = getLineNumbers()) {
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if (auto FirstLine = Lines->getNext())
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return FirstLine->getCompilandId();
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}
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uint32_t DataSection = RawSymbol->getAddressSection();
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uint32_t DataOffset = RawSymbol->getAddressOffset();
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if (DataSection == 0) {
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if (auto RVA = RawSymbol->getRelativeVirtualAddress())
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Session.addressForRVA(RVA, DataSection, DataOffset);
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}
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if (DataSection) {
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if (auto SecContribs = Session.getSectionContribs()) {
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while (auto Section = SecContribs->getNext()) {
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if (Section->getAddressSection() == DataSection &&
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Section->getAddressOffset() <= DataOffset &&
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(Section->getAddressOffset() + Section->getLength()) > DataOffset)
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return Section->getCompilandId();
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}
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}
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} else {
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auto LexParentId = RawSymbol->getLexicalParentId();
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while (auto LexParent = Session.getSymbolById(LexParentId)) {
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if (LexParent->getSymTag() == PDB_SymType::Exe)
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break;
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if (LexParent->getSymTag() == PDB_SymType::Compiland)
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return LexParentId;
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LexParentId = LexParent->getRawSymbol().getLexicalParentId();
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}
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}
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return 0;
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}
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