-
Notifications
You must be signed in to change notification settings - Fork 10.7k
/
UdtRecordCompleter.cpp
181 lines (146 loc) · 6.44 KB
/
UdtRecordCompleter.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
#include "UdtRecordCompleter.h"
#include "PdbIndex.h"
#include "PdbSymUid.h"
#include "PdbUtil.h"
#include "SymbolFileNativePDB.h"
#include "lldb/Symbol/ClangASTContext.h"
#include "lldb/Symbol/Type.h"
#include "lldb/Utility/LLDBAssert.h"
#include "lldb/lldb-enumerations.h"
#include "lldb/lldb-forward.h"
#include "llvm/DebugInfo/CodeView/TypeDeserializer.h"
#include "llvm/DebugInfo/CodeView/TypeIndex.h"
#include "llvm/DebugInfo/PDB/Native/TpiStream.h"
#include "llvm/DebugInfo/PDB/PDBTypes.h"
using namespace llvm::codeview;
using namespace llvm::pdb;
using namespace lldb;
using namespace lldb_private;
using namespace lldb_private::npdb;
using Error = llvm::Error;
UdtRecordCompleter::UdtRecordCompleter(PdbSymUid uid, CompilerType &derived_ct,
clang::TagDecl &tag_decl,
SymbolFileNativePDB &symbol_file)
: m_uid(uid), m_derived_ct(derived_ct), m_tag_decl(tag_decl),
m_symbol_file(symbol_file) {
TpiStream &tpi = symbol_file.m_index->tpi();
TypeIndex ti(uid.asTypeSym().index);
CVType cvt = tpi.getType(ti);
switch (cvt.kind()) {
case LF_ENUM:
lldbassert(uid.tag() == PDB_SymType::Enum);
llvm::cantFail(TypeDeserializer::deserializeAs<EnumRecord>(cvt, m_cvr.er));
break;
case LF_UNION:
lldbassert(uid.tag() == PDB_SymType::UDT);
llvm::cantFail(TypeDeserializer::deserializeAs<UnionRecord>(cvt, m_cvr.ur));
break;
case LF_CLASS:
case LF_STRUCTURE:
lldbassert(uid.tag() == PDB_SymType::UDT);
llvm::cantFail(TypeDeserializer::deserializeAs<ClassRecord>(cvt, m_cvr.cr));
break;
default:
llvm_unreachable("unreachable!");
}
}
lldb::opaque_compiler_type_t UdtRecordCompleter::AddBaseClassForTypeIndex(
llvm::codeview::TypeIndex ti, llvm::codeview::MemberAccess access) {
TypeSP base_type = m_symbol_file.GetOrCreateType(ti);
CompilerType base_ct = base_type->GetFullCompilerType();
CVType udt_cvt = m_symbol_file.m_index->tpi().getType(ti);
lldb::opaque_compiler_type_t base_qt = base_ct.GetOpaqueQualType();
std::unique_ptr<clang::CXXBaseSpecifier> base_spec =
m_symbol_file.GetASTContext().CreateBaseClassSpecifier(
base_qt, TranslateMemberAccess(access), false,
udt_cvt.kind() == LF_CLASS);
lldbassert(base_spec);
m_bases.push_back(std::move(base_spec));
return base_qt;
}
Error UdtRecordCompleter::visitKnownMember(CVMemberRecord &cvr,
BaseClassRecord &base) {
lldb::opaque_compiler_type_t base_qt =
AddBaseClassForTypeIndex(base.Type, base.getAccess());
auto decl = m_symbol_file.GetASTContext().GetAsCXXRecordDecl(base_qt);
lldbassert(decl);
auto offset = clang::CharUnits::fromQuantity(base.getBaseOffset());
m_layout.base_offsets.insert(std::make_pair(decl, offset));
return llvm::Error::success();
}
Error UdtRecordCompleter::visitKnownMember(CVMemberRecord &cvr,
VirtualBaseClassRecord &base) {
AddBaseClassForTypeIndex(base.BaseType, base.getAccess());
// FIXME: Handle virtual base offsets.
return Error::success();
}
Error UdtRecordCompleter::visitKnownMember(CVMemberRecord &cvr,
ListContinuationRecord &cont) {
return Error::success();
}
Error UdtRecordCompleter::visitKnownMember(CVMemberRecord &cvr,
VFPtrRecord &vfptr) {
return Error::success();
}
Error UdtRecordCompleter::visitKnownMember(
CVMemberRecord &cvr, StaticDataMemberRecord &static_data_member) {
TypeSP member_type = m_symbol_file.GetOrCreateType(static_data_member.Type);
CompilerType complete_member_type = member_type->GetFullCompilerType();
lldb::AccessType access =
TranslateMemberAccess(static_data_member.getAccess());
ClangASTContext::AddVariableToRecordType(
m_derived_ct, static_data_member.Name, complete_member_type, access);
// FIXME: Add a PdbSymUid namespace for field list members and update
// the m_uid_to_decl map with this decl.
return Error::success();
}
Error UdtRecordCompleter::visitKnownMember(CVMemberRecord &cvr,
NestedTypeRecord &nested) {
return Error::success();
}
Error UdtRecordCompleter::visitKnownMember(CVMemberRecord &cvr,
DataMemberRecord &data_member) {
TypeSP member_type = m_symbol_file.GetOrCreateType(data_member.Type);
CompilerType complete_member_type = member_type->GetFullCompilerType();
lldb::AccessType access = TranslateMemberAccess(data_member.getAccess());
clang::FieldDecl *decl = ClangASTContext::AddFieldToRecordType(
m_derived_ct, data_member.Name, complete_member_type, access, 0);
// FIXME: Add a PdbSymUid namespace for field list members and update
// the m_uid_to_decl map with this decl.
uint64_t offset = data_member.FieldOffset * 8;
m_layout.field_offsets.insert(std::make_pair(decl, offset));
return Error::success();
}
Error UdtRecordCompleter::visitKnownMember(CVMemberRecord &cvr,
OneMethodRecord &one_method) {
return Error::success();
}
Error UdtRecordCompleter::visitKnownMember(CVMemberRecord &cvr,
OverloadedMethodRecord &overloaded) {
return Error::success();
}
Error UdtRecordCompleter::visitKnownMember(CVMemberRecord &cvr,
EnumeratorRecord &enumerator) {
ClangASTContext &clang = m_symbol_file.GetASTContext();
Declaration decl;
llvm::StringRef name = DropNameScope(enumerator.getName());
lldbassert(m_uid.tag() == PDB_SymType::Enum);
TypeSP underlying_type =
m_symbol_file.GetOrCreateType(m_cvr.er.getUnderlyingType());
uint64_t byte_size = underlying_type->GetByteSize();
clang.AddEnumerationValueToEnumerationType(
m_derived_ct, decl, name.str().c_str(), enumerator.Value.getSExtValue(),
byte_size * 8);
return Error::success();
}
void UdtRecordCompleter::complete() {
ClangASTContext &clang = m_symbol_file.GetASTContext();
clang.TransferBaseClasses(m_derived_ct.GetOpaqueQualType(),
std::move(m_bases));
clang.AddMethodOverridesForCXXRecordType(m_derived_ct.GetOpaqueQualType());
ClangASTContext::BuildIndirectFields(m_derived_ct);
ClangASTContext::CompleteTagDeclarationDefinition(m_derived_ct);
if (auto *record_decl = llvm::dyn_cast<clang::CXXRecordDecl>(&m_tag_decl)) {
m_symbol_file.GetASTImporter().InsertRecordDecl(record_decl, m_layout);
}
}