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comparison lib/DebugInfo/PDB/PDBSymbolData.cpp @ 147:c2174574ed3a

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LLVM 10
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Wed, 14 Aug 2019 16:55:33 +0900
parents 803732b1fca8
children
comparison
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134:3a76565eade5 147:c2174574ed3a
1 //===- PDBSymbolData.cpp - PDB data (e.g. variable) accessors ---*- C++ -*-===// 1 //===- PDBSymbolData.cpp - PDB data (e.g. variable) accessors ---*- C++ -*-===//
2 // 2 //
3 // The LLVM Compiler Infrastructure 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // 4 // See https://llvm.org/LICENSE.txt for license information.
5 // This file is distributed under the University of Illinois Open Source 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 // License. See LICENSE.TXT for details.
7 // 6 //
8 //===----------------------------------------------------------------------===// 7 //===----------------------------------------------------------------------===//
9 8
10 #include "llvm/DebugInfo/PDB/PDBSymbolData.h" 9 #include "llvm/DebugInfo/PDB/PDBSymbolData.h"
11 10 #include "llvm/DebugInfo/PDB/IPDBSectionContrib.h"
12 #include "llvm/DebugInfo/PDB/IPDBSession.h" 11 #include "llvm/DebugInfo/PDB/IPDBSession.h"
13 #include "llvm/DebugInfo/PDB/PDBSymDumper.h" 12 #include "llvm/DebugInfo/PDB/PDBSymDumper.h"
14 13
15 #include <utility> 14 #include <utility>
16 15
17 using namespace llvm; 16 using namespace llvm;
18 using namespace llvm::pdb; 17 using namespace llvm::pdb;
19 18
20 PDBSymbolData::PDBSymbolData(const IPDBSession &PDBSession, 19 void PDBSymbolData::dump(PDBSymDumper &Dumper) const { Dumper.dump(*this); }
21 std::unique_ptr<IPDBRawSymbol> DataSymbol) 20
22 : PDBSymbol(PDBSession, std::move(DataSymbol)) { 21 std::unique_ptr<IPDBEnumLineNumbers> PDBSymbolData::getLineNumbers() const {
23 assert(RawSymbol->getSymTag() == PDB_SymType::Data); 22 auto Len = RawSymbol->getLength();
23 Len = Len ? Len : 1;
24 if (auto RVA = RawSymbol->getRelativeVirtualAddress())
25 return Session.findLineNumbersByRVA(RVA, Len);
26
27 if (auto Section = RawSymbol->getAddressSection())
28 return Session.findLineNumbersBySectOffset(
29 Section, RawSymbol->getAddressOffset(), Len);
30
31 return nullptr;
24 } 32 }
25 33
26 void PDBSymbolData::dump(PDBSymDumper &Dumper) const { Dumper.dump(*this); } 34 uint32_t PDBSymbolData::getCompilandId() const {
35 if (auto Lines = getLineNumbers()) {
36 if (auto FirstLine = Lines->getNext())
37 return FirstLine->getCompilandId();
38 }
39
40 uint32_t DataSection = RawSymbol->getAddressSection();
41 uint32_t DataOffset = RawSymbol->getAddressOffset();
42 if (DataSection == 0) {
43 if (auto RVA = RawSymbol->getRelativeVirtualAddress())
44 Session.addressForRVA(RVA, DataSection, DataOffset);
45 }
46
47 if (DataSection) {
48 if (auto SecContribs = Session.getSectionContribs()) {
49 while (auto Section = SecContribs->getNext()) {
50 if (Section->getAddressSection() == DataSection &&
51 Section->getAddressOffset() <= DataOffset &&
52 (Section->getAddressOffset() + Section->getLength()) > DataOffset)
53 return Section->getCompilandId();
54 }
55 }
56 } else {
57 auto LexParentId = RawSymbol->getLexicalParentId();
58 while (auto LexParent = Session.getSymbolById(LexParentId)) {
59 if (LexParent->getSymTag() == PDB_SymType::Exe)
60 break;
61 if (LexParent->getSymTag() == PDB_SymType::Compiland)
62 return LexParentId;
63 LexParentId = LexParent->getRawSymbol().getLexicalParentId();
64 }
65 }
66
67 return 0;
68 }