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 {
55 return std::string(Record.Name);
56 }
57
getTypeId() const58 SymIndexId NativeSymbolEnumerator::getTypeId() const {
59 return Parent.getTypeId();
60 }
61
getDataKind() const62 PDB_DataKind NativeSymbolEnumerator::getDataKind() const {
63 return PDB_DataKind::Constant;
64 }
65
getLocationType() const66 PDB_LocType NativeSymbolEnumerator::getLocationType() const {
67 return PDB_LocType::Constant;
68 }
69
isConstType() const70 bool NativeSymbolEnumerator::isConstType() const { return false; }
71
isVolatileType() const72 bool NativeSymbolEnumerator::isVolatileType() const { return false; }
73
isUnalignedType() const74 bool NativeSymbolEnumerator::isUnalignedType() const { return false; }
75
getValue() const76 Variant NativeSymbolEnumerator::getValue() const {
77 const NativeTypeBuiltin &BT = Parent.getUnderlyingBuiltinType();
78
79 switch (BT.getBuiltinType()) {
80 case PDB_BuiltinType::Int:
81 case PDB_BuiltinType::Long:
82 case PDB_BuiltinType::Char: {
83 assert(Record.Value.isSignedIntN(BT.getLength() * 8));
84 int64_t N = Record.Value.getSExtValue();
85 switch (BT.getLength()) {
86 case 1:
87 return Variant{static_cast<int8_t>(N)};
88 case 2:
89 return Variant{static_cast<int16_t>(N)};
90 case 4:
91 return Variant{static_cast<int32_t>(N)};
92 case 8:
93 return Variant{static_cast<int64_t>(N)};
94 }
95 break;
96 }
97 case PDB_BuiltinType::UInt:
98 case PDB_BuiltinType::ULong: {
99 assert(Record.Value.isIntN(BT.getLength() * 8));
100 uint64_t U = Record.Value.getZExtValue();
101 switch (BT.getLength()) {
102 case 1:
103 return Variant{static_cast<uint8_t>(U)};
104 case 2:
105 return Variant{static_cast<uint16_t>(U)};
106 case 4:
107 return Variant{static_cast<uint32_t>(U)};
108 case 8:
109 return Variant{static_cast<uint64_t>(U)};
110 }
111 break;
112 }
113 case PDB_BuiltinType::Bool: {
114 assert(Record.Value.isIntN(BT.getLength() * 8));
115 uint64_t U = Record.Value.getZExtValue();
116 return Variant{static_cast<bool>(U)};
117 }
118 default:
119 assert(false && "Invalid enumeration type");
120 break;
121 }
122
123 return Variant{Record.Value.getSExtValue()};
124 }
125