| 1 | //==- NativeEnumGlobals.cpp - Native Global Enumerator impl ------*- C++ -*-==// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include "llvm/DebugInfo/PDB/Native/NativeEnumGlobals.h" |
| 10 | |
| 11 | #include "llvm/DebugInfo/CodeView/CVRecord.h" |
| 12 | #include "llvm/DebugInfo/PDB/IPDBEnumChildren.h" |
| 13 | #include "llvm/DebugInfo/PDB/Native/GlobalsStream.h" |
| 14 | #include "llvm/DebugInfo/PDB/Native/NativeSession.h" |
| 15 | #include "llvm/DebugInfo/PDB/Native/PDBFile.h" |
| 16 | #include "llvm/DebugInfo/PDB/Native/SymbolCache.h" |
| 17 | #include "llvm/DebugInfo/PDB/Native/SymbolStream.h" |
| 18 | #include "llvm/DebugInfo/PDB/PDBSymbol.h" |
| 19 | #include "llvm/DebugInfo/PDB/PDBTypes.h" |
| 20 | |
| 21 | using namespace llvm; |
| 22 | using namespace llvm::codeview; |
| 23 | using namespace llvm::pdb; |
| 24 | |
| 25 | NativeEnumGlobals::NativeEnumGlobals(NativeSession &PDBSession, |
| 26 | std::vector<codeview::SymbolKind> Kinds) |
| 27 | : Index(0), Session(PDBSession) { |
| 28 | GlobalsStream &GS = cantFail(ValOrErr: Session.getPDBFile().getPDBGlobalsStream()); |
| 29 | SymbolStream &SS = cantFail(ValOrErr: Session.getPDBFile().getPDBSymbolStream()); |
| 30 | for (uint32_t Off : GS.getGlobalsTable()) { |
| 31 | CVSymbol S = SS.readRecord(Offset: Off); |
| 32 | if (!llvm::is_contained(Range&: Kinds, Element: S.kind())) |
| 33 | continue; |
| 34 | MatchOffsets.push_back(x: Off); |
| 35 | } |
| 36 | } |
| 37 | |
| 38 | uint32_t NativeEnumGlobals::getChildCount() const { |
| 39 | return static_cast<uint32_t>(MatchOffsets.size()); |
| 40 | } |
| 41 | |
| 42 | std::unique_ptr<PDBSymbol> |
| 43 | NativeEnumGlobals::getChildAtIndex(uint32_t N) const { |
| 44 | if (N >= MatchOffsets.size()) |
| 45 | return nullptr; |
| 46 | |
| 47 | SymIndexId Id = |
| 48 | Session.getSymbolCache().getOrCreateGlobalSymbolByOffset(Offset: MatchOffsets[N]); |
| 49 | return Session.getSymbolCache().getSymbolById(SymbolId: Id); |
| 50 | } |
| 51 | |
| 52 | std::unique_ptr<PDBSymbol> NativeEnumGlobals::getNext() { |
| 53 | return getChildAtIndex(N: Index++); |
| 54 | } |
| 55 | |
| 56 | void NativeEnumGlobals::reset() { Index = 0; } |
| 57 |