| 1 | //===- PDBSymbolData.cpp - PDB data (e.g. variable) accessors ---*- 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/PDBSymbolData.h" |
| 10 | #include "llvm/DebugInfo/PDB/IPDBLineNumber.h" |
| 11 | #include "llvm/DebugInfo/PDB/IPDBSectionContrib.h" |
| 12 | #include "llvm/DebugInfo/PDB/IPDBSession.h" |
| 13 | #include "llvm/DebugInfo/PDB/PDBSymDumper.h" |
| 14 | |
| 15 | using namespace llvm; |
| 16 | using namespace llvm::pdb; |
| 17 | |
| 18 | void PDBSymbolData::dump(PDBSymDumper &Dumper) const { Dumper.dump(Symbol: *this); } |
| 19 | |
| 20 | std::unique_ptr<IPDBEnumLineNumbers> PDBSymbolData::getLineNumbers() const { |
| 21 | auto Len = RawSymbol->getLength(); |
| 22 | Len = Len ? Len : 1; |
| 23 | if (auto RVA = RawSymbol->getRelativeVirtualAddress()) |
| 24 | return Session.findLineNumbersByRVA(RVA, Length: Len); |
| 25 | |
| 26 | if (auto Section = RawSymbol->getAddressSection()) |
| 27 | return Session.findLineNumbersBySectOffset( |
| 28 | Section, Offset: RawSymbol->getAddressOffset(), Length: Len); |
| 29 | |
| 30 | return nullptr; |
| 31 | } |
| 32 | |
| 33 | uint32_t PDBSymbolData::getCompilandId() const { |
| 34 | if (auto Lines = getLineNumbers()) { |
| 35 | if (auto FirstLine = Lines->getNext()) |
| 36 | return FirstLine->getCompilandId(); |
| 37 | } |
| 38 | |
| 39 | uint32_t DataSection = RawSymbol->getAddressSection(); |
| 40 | uint32_t DataOffset = RawSymbol->getAddressOffset(); |
| 41 | if (DataSection == 0) { |
| 42 | if (auto RVA = RawSymbol->getRelativeVirtualAddress()) |
| 43 | Session.addressForRVA(RVA, Section&: DataSection, Offset&: DataOffset); |
| 44 | } |
| 45 | |
| 46 | if (DataSection) { |
| 47 | if (auto SecContribs = Session.getSectionContribs()) { |
| 48 | while (auto Section = SecContribs->getNext()) { |
| 49 | if (Section->getAddressSection() == DataSection && |
| 50 | Section->getAddressOffset() <= DataOffset && |
| 51 | (Section->getAddressOffset() + Section->getLength()) > DataOffset) |
| 52 | return Section->getCompilandId(); |
| 53 | } |
| 54 | } |
| 55 | } else { |
| 56 | auto LexParentId = RawSymbol->getLexicalParentId(); |
| 57 | while (auto LexParent = Session.getSymbolById(SymbolId: LexParentId)) { |
| 58 | if (LexParent->getSymTag() == PDB_SymType::Exe) |
| 59 | break; |
| 60 | if (LexParent->getSymTag() == PDB_SymType::Compiland) |
| 61 | return LexParentId; |
| 62 | LexParentId = LexParent->getRawSymbol().getLexicalParentId(); |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | return 0; |
| 67 | } |
| 68 |