a5e3e02602
These work a little differently because they are actually in the globals stream and are treated as symbol records, even though DIA presents them as types. So this also adds the necessary infrastructure to cache records that live somewhere other than the TPI stream as well. llvm-svn: 343507
56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
//==- NativeEnumGlobals.cpp - Native Global Enumerator impl ------*- 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/Native/NativeEnumGlobals.h"
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#include "llvm/DebugInfo/CodeView/SymbolDeserializer.h"
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#include "llvm/DebugInfo/PDB/IPDBEnumChildren.h"
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#include "llvm/DebugInfo/PDB/Native/GlobalsStream.h"
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#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
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#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
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#include "llvm/DebugInfo/PDB/Native/SymbolStream.h"
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#include "llvm/DebugInfo/PDB/PDBSymbol.h"
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using namespace llvm;
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using namespace llvm::codeview;
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using namespace llvm::pdb;
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NativeEnumGlobals::NativeEnumGlobals(NativeSession &PDBSession,
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std::vector<codeview::SymbolKind> Kinds)
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: Index(0), Session(PDBSession) {
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GlobalsStream &GS = cantFail(Session.getPDBFile().getPDBGlobalsStream());
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SymbolStream &SS = cantFail(Session.getPDBFile().getPDBSymbolStream());
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for (uint32_t Off : GS.getGlobalsTable()) {
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CVSymbol S = SS.readRecord(Off);
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if (!llvm::is_contained(Kinds, S.kind()))
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continue;
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MatchOffsets.push_back(Off);
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}
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}
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uint32_t NativeEnumGlobals::getChildCount() const {
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return static_cast<uint32_t>(MatchOffsets.size());
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}
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std::unique_ptr<PDBSymbol>
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NativeEnumGlobals::getChildAtIndex(uint32_t N) const {
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if (N >= MatchOffsets.size())
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return nullptr;
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SymIndexId Id =
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Session.getSymbolCache().getOrCreateGlobalSymbolByOffset(MatchOffsets[N]);
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return Session.getSymbolCache().getSymbolById(Id);
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}
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std::unique_ptr<PDBSymbol> NativeEnumGlobals::getNext() {
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return getChildAtIndex(Index++);
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}
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void NativeEnumGlobals::reset() { Index = 0; }
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