LLVM: lib/DebugInfo/CodeView/CVSymbolVisitor.cpp Source File (original) (raw)
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16using namespace llvm;
18
20 : Callbacks(Callbacks) {}
21
22template
26 T KnownRecord(RK);
27 if (auto EC = Callbacks.visitKnownRecord(Record, KnownRecord))
28 return EC;
30}
31
34 switch (Record.kind()) {
35 default:
37 return EC;
38 break;
39#define SYMBOL_RECORD(EnumName, EnumVal, Name) \
40 case EnumName: { \
41 if (auto EC = visitKnownRecord(Record, Callbacks)) \
42 return EC; \
43 break; \
44 }
45#define SYMBOL_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName) \
46 SYMBOL_RECORD(EnumVal, EnumVal, AliasName)
47#include "llvm/DebugInfo/CodeView/CodeViewSymbols.def"
48 }
49
51 return EC;
52
54}
55
57 if (auto EC = Callbacks.visitSymbolBegin(Record))
58 return EC;
60}
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80 return EC;
81 InitialOffset += I.length();
82 }
84}
85
88 if (.SymbolOffset)
91 uint32_t ParentRecurseDepth = Filter.ParentRecursiveDepth.value_or(0);
92 uint32_t ChildrenRecurseDepth = Filter.ChildRecursiveDepth.value_or(0);
93 if (.isOffsetValid(SymbolOffset))
98
99 std::vector<uint32_t> ParentOffsets;
100 std::vector<uint32_t> ParentEndOffsets;
102 for (auto Begin = Symbols.begin(), End = Symbols.end(); Begin != End;
103 ++Begin) {
104 uint32_t BeginOffset = Begin.offset();
106 if (BeginOffset < SymbolOffset) {
109 if (SymbolOffset < EndOffset) {
110 ParentOffsets.push_back(BeginOffset);
111 ParentEndOffsets.push_back(EndOffset);
112 }
113 }
114 } else if (BeginOffset == SymbolOffset) {
115
116 if (ParentRecurseDepth >= ParentOffsets.size())
117 ParentRecurseDepth = ParentOffsets.size();
118 uint32_t StartIndex = ParentOffsets.size() - ParentRecurseDepth;
119 while (StartIndex < ParentOffsets.size()) {
120 if (.isOffsetValid(ParentOffsets[StartIndex]))
121 break;
122 CVSymbol Parent = *Symbols.at(ParentOffsets[StartIndex]);
124 return EC;
125 ++StartIndex;
126 }
128 return EC;
129 } else if (BeginOffset <= SymEndOffset) {
130 if (ChildrenRecurseDepth) {
131
133 --ChildrenDepth;
134 if (ChildrenDepth < ChildrenRecurseDepth ||
135 BeginOffset == SymEndOffset) {
137 return EC;
138 }
140 ++ChildrenDepth;
141 }
142 } else {
143
144 if (ParentRecurseDepth && BeginOffset == ParentEndOffsets.back()) {
146 return EC;
147 ParentEndOffsets.pop_back();
148 --ParentRecurseDepth;
149 }
150 }
151 }
153}
Lightweight arrays that are backed by an arbitrary BinaryStream.
static Error finishVisitation(CVSymbol &Record, SymbolVisitorCallbacks &Callbacks)
Definition CVSymbolVisitor.cpp:32
static Error visitKnownRecord(CVSymbol &Record, SymbolVisitorCallbacks &Callbacks)
Definition CVSymbolVisitor.cpp:23
Lightweight error class with error context and mandatory checking.
static ErrorSuccess success()
Create a success value.
LLVM_ABI CVSymbolVisitor(SymbolVisitorCallbacks &Callbacks)
Definition CVSymbolVisitor.cpp:19
LLVM_ABI Error visitSymbolStreamFiltered(const CVSymbolArray &Symbols, const FilterOptions &Filter)
Definition CVSymbolVisitor.cpp:86
LLVM_ABI Error visitSymbolRecord(CVSymbol &Record)
Definition CVSymbolVisitor.cpp:56
LLVM_ABI Error visitSymbolStream(const CVSymbolArray &Symbols)
Definition CVSymbolVisitor.cpp:68
virtual Error visitSymbolEnd(CVSymbol &Record)
virtual Error visitUnknownSymbol(CVSymbol &Record)
Action to take on unknown symbols. By default, they are ignored.
VarStreamArray< CVSymbol > CVSymbolArray
CVRecord< SymbolKind > CVSymbol
bool symbolEndsScope(SymbolKind Kind)
Return true if this ssymbol ends a scope.
SymbolRecordKind
Distinguishes individual records in the Symbols subsection of a .debug$S section.
LLVM_ABI uint32_t getScopeEndOffset(const CVSymbol &Symbol)
Given a symbol P for which symbolOpensScope(P) == true, return the corresponding end offset.
bool symbolOpensScope(SymbolKind Kind)
Return true if this symbol opens a scope.
This is an optimization pass for GlobalISel generic memory operations.
LLVM_ABI std::error_code inconvertibleErrorCode()
The value returned by this function can be returned from convertToErrorCode for Error values where no...
Error createStringError(std::error_code EC, char const *Fmt, const Ts &... Vals)
Create formatted StringError object.