1 //===- NativeSymbolEnumerator.cpp - info about enumerators ------*- 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/NativeSymbolEnumerator.h"
10
11 #include "llvm/DebugInfo/CodeView/SymbolRecord.h"
12 #include "llvm/DebugInfo/PDB/Native/NativeTypeBuiltin.h"
13 #include "llvm/DebugInfo/PDB/Native/NativeTypeEnum.h"
14
15 using namespace llvm;
16 using namespace llvm::codeview;
17 using namespace llvm::pdb;
18
NativeSymbolEnumerator(NativeSession & Session,SymIndexId Id,const NativeTypeEnum & Parent,codeview::EnumeratorRecord Record)19 NativeSymbolEnumerator::NativeSymbolEnumerator(
20 NativeSession &Session, SymIndexId Id, const NativeTypeEnum &Parent,
21 codeview::EnumeratorRecord Record)
22 : NativeRawSymbol(Session, PDB_SymType::Data, Id), Parent(Parent),
23 Record(std::move(Record)) {}
24
~NativeSymbolEnumerator()25 NativeSymbolEnumerator::~NativeSymbolEnumerator() {}
26
dump(raw_ostream & OS,int Indent,PdbSymbolIdField ShowIdFields,PdbSymbolIdField RecurseIdFields) const27 void NativeSymbolEnumerator::dump(raw_ostream &OS, int Indent,
28 PdbSymbolIdField ShowIdFields,
29 PdbSymbolIdField RecurseIdFields) const {
30 NativeRawSymbol::dump(OS, Indent, ShowIdFields, RecurseIdFields);
31 dumpSymbolIdField(OS, "classParentId", getClassParentId(), Indent, Session,
32 PdbSymbolIdField::ClassParent, ShowIdFields,
33 RecurseIdFields);
34 dumpSymbolIdField(OS, "lexicalParentId", getLexicalParentId(), Indent,
35 Session, PdbSymbolIdField::LexicalParent, ShowIdFields,
36 RecurseIdFields);
37 dumpSymbolField(OS, "name", getName(), Indent);
38 dumpSymbolIdField(OS, "typeId", getTypeId(), Indent, Session,
39 PdbSymbolIdField::Type, ShowIdFields, RecurseIdFields);
40 dumpSymbolField(OS, "dataKind", getDataKind(), Indent);
41 dumpSymbolField(OS, "locationType", getLocationType(), Indent);
42 dumpSymbolField(OS, "constType", isConstType(), Indent);
43 dumpSymbolField(OS, "unalignedType", isUnalignedType(), Indent);
44 dumpSymbolField(OS, "volatileType", isVolatileType(), Indent);
45 dumpSymbolField(OS, "value", getValue(), Indent);
46 }
47
getClassParentId() const48 SymIndexId NativeSymbolEnumerator::getClassParentId() const {
49 return Parent.getSymIndexId();
50 }
51
getLexicalParentId() const52 SymIndexId NativeSymbolEnumerator::getLexicalParentId() const { return 0; }
53
getName() const54 std::string NativeSymbolEnumerator::getName() const { return Record.Name; }
55
getTypeId() const56 SymIndexId NativeSymbolEnumerator::getTypeId() const {
57 return Parent.getTypeId();
58 }
59
getDataKind() const60 PDB_DataKind NativeSymbolEnumerator::getDataKind() const {
61 return PDB_DataKind::Constant;
62 }
63
getLocationType() const64 PDB_LocType NativeSymbolEnumerator::getLocationType() const {
65 return PDB_LocType::Constant;
66 }
67
isConstType() const68 bool NativeSymbolEnumerator::isConstType() const { return false; }
69
isVolatileType() const70 bool NativeSymbolEnumerator::isVolatileType() const { return false; }
71
isUnalignedType() const72 bool NativeSymbolEnumerator::isUnalignedType() const { return false; }
73
getValue() const74 Variant NativeSymbolEnumerator::getValue() const {
75 const NativeTypeBuiltin &BT = Parent.getUnderlyingBuiltinType();
76
77 switch (BT.getBuiltinType()) {
78 case PDB_BuiltinType::Int:
79 case PDB_BuiltinType::Long:
80 case PDB_BuiltinType::Char: {
81 assert(Record.Value.isSignedIntN(BT.getLength() * 8));
82 int64_t N = Record.Value.getSExtValue();
83 switch (BT.getLength()) {
84 case 1:
85 return Variant{static_cast<int8_t>(N)};
86 case 2:
87 return Variant{static_cast<int16_t>(N)};
88 case 4:
89 return Variant{static_cast<int32_t>(N)};
90 case 8:
91 return Variant{static_cast<int64_t>(N)};
92 }
93 break;
94 }
95 case PDB_BuiltinType::UInt:
96 case PDB_BuiltinType::ULong: {
97 assert(Record.Value.isIntN(BT.getLength() * 8));
98 uint64_t U = Record.Value.getZExtValue();
99 switch (BT.getLength()) {
100 case 1:
101 return Variant{static_cast<uint8_t>(U)};
102 case 2:
103 return Variant{static_cast<uint16_t>(U)};
104 case 4:
105 return Variant{static_cast<uint32_t>(U)};
106 case 8:
107 return Variant{static_cast<uint64_t>(U)};
108 }
109 break;
110 }
111 case PDB_BuiltinType::Bool: {
112 assert(Record.Value.isIntN(BT.getLength() * 8));
113 uint64_t U = Record.Value.getZExtValue();
114 return Variant{static_cast<bool>(U)};
115 }
116 default:
117 assert(false && "Invalid enumeration type");
118 break;
119 }
120
121 return Variant{Record.Value.getSExtValue()};
122 }
123