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[LLDB][NFC] Remove DWARFASTParserClang as friend from SymbolFileDWARF (#70157)

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This effectively moves a few functions from protected to public. In any
case, for the sake of having a cleaner SymbolFileDWARF API, it's better
if it's not a friend of a one of its consumers, DWARFASTParserClang.
Another effect of this change is that I can use SymbolFileDWARF for the
out-of-tree mojo dwarf parser, which relies on pretty much the same
functions that DWARFASTParserClang needs from SymbolFileDWARF.
This commit is contained in:
Walter Erquinigo
2023-10-25 18:04:25 -04:00
committed by GitHub
parent a1b4238eaf
commit 10508b6db7
6 changed files with 63 additions and 59 deletions
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18
lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp
View File

@@ -834,9 +834,9 @@ TypeSP DWARFASTParserClang::ParseEnum(const SymbolContext &sc,
CompilerType enumerator_clang_type;
CompilerType clang_type;
clang_type =
CompilerType(m_ast.weak_from_this(),
dwarf->GetForwardDeclDieToClangType().lookup(die.GetDIE()));
clang_type = CompilerType(
m_ast.weak_from_this(),
dwarf->GetForwardDeclDIEToCompilerType().lookup(die.GetDIE()));
if (!clang_type) {
if (attrs.type.IsValid()) {
Type *enumerator_type =
@@ -1764,9 +1764,9 @@ DWARFASTParserClang::ParseStructureLikeDIE(const SymbolContext &sc,
assert(tag_decl_kind != -1);
(void)tag_decl_kind;
bool clang_type_was_created = false;
clang_type =
CompilerType(m_ast.weak_from_this(),
dwarf->GetForwardDeclDieToClangType().lookup(die.GetDIE()));
clang_type = CompilerType(
m_ast.weak_from_this(),
dwarf->GetForwardDeclDIEToCompilerType().lookup(die.GetDIE()));
if (!clang_type) {
clang::DeclContext *decl_ctx =
GetClangDeclContextContainingDIE(die, nullptr);
@@ -1896,16 +1896,16 @@ DWARFASTParserClang::ParseStructureLikeDIE(const SymbolContext &sc,
// the SymbolFile virtual function
// "SymbolFileDWARF::CompleteType(Type *)" When the definition
// needs to be defined.
assert(!dwarf->GetForwardDeclClangTypeToDie().count(
assert(!dwarf->GetForwardDeclCompilerTypeToDIE().count(
ClangUtil::RemoveFastQualifiers(clang_type)
.GetOpaqueQualType()) &&
"Type already in the forward declaration map!");
// Can't assume m_ast.GetSymbolFile() is actually a
// SymbolFileDWARF, it can be a SymbolFileDWARFDebugMap for Apple
// binaries.
dwarf->GetForwardDeclDieToClangType()[die.GetDIE()] =
dwarf->GetForwardDeclDIEToCompilerType()[die.GetDIE()] =
clang_type.GetOpaqueQualType();
dwarf->GetForwardDeclClangTypeToDie().try_emplace(
dwarf->GetForwardDeclCompilerTypeToDIE().try_emplace(
ClangUtil::RemoveFastQualifiers(clang_type).GetOpaqueQualType(),
*die.GetDIERef());
m_ast.SetHasExternalStorage(clang_type.GetOpaqueQualType(), true);

10
lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
View File

@@ -1532,11 +1532,11 @@ Type *SymbolFileDWARF::ResolveTypeUID(const DWARFDIE &die,
// This function is used when SymbolFileDWARFDebugMap owns a bunch of
// SymbolFileDWARF objects to detect if this DWARF file is the one that can
// resolve a compiler_type.
bool SymbolFileDWARF::HasForwardDeclForClangType(
bool SymbolFileDWARF::HasForwardDeclForCompilerType(
const CompilerType &compiler_type) {
CompilerType compiler_type_no_qualifiers =
ClangUtil::RemoveFastQualifiers(compiler_type);
if (GetForwardDeclClangTypeToDie().count(
if (GetForwardDeclCompilerTypeToDIE().count(
compiler_type_no_qualifiers.GetOpaqueQualType())) {
return true;
}
@@ -1564,9 +1564,9 @@ bool SymbolFileDWARF::CompleteType(CompilerType &compiler_type) {
// We have a struct/union/class/enum that needs to be fully resolved.
CompilerType compiler_type_no_qualifiers =
ClangUtil::RemoveFastQualifiers(compiler_type);
auto die_it = GetForwardDeclClangTypeToDie().find(
auto die_it = GetForwardDeclCompilerTypeToDIE().find(
compiler_type_no_qualifiers.GetOpaqueQualType());
if (die_it == GetForwardDeclClangTypeToDie().end()) {
if (die_it == GetForwardDeclCompilerTypeToDIE().end()) {
// We have already resolved this type...
return true;
}
@@ -1577,7 +1577,7 @@ bool SymbolFileDWARF::CompleteType(CompilerType &compiler_type) {
// declaration map in case anyone child members or other types require this
// type to get resolved. The type will get resolved when all of the calls
// to SymbolFileDWARF::ResolveClangOpaqueTypeDefinition are done.
GetForwardDeclClangTypeToDie().erase(die_it);
GetForwardDeclCompilerTypeToDIE().erase(die_it);
Type *type = GetDIEToType().lookup(dwarf_die.GetDIE());

76
lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
View File

@@ -83,7 +83,6 @@ public:
friend class DWARFCompileUnit;
friend class DWARFDIE;
friend class DWARFASTParser;
friend class ::DWARFASTParserClang;
// Static Functions
static void Initialize();
@@ -138,7 +137,6 @@ public:
size_t ParseVariablesForContext(const SymbolContext &sc) override;
Type *ResolveTypeUID(lldb::user_id_t type_uid) override;
std::optional<ArrayInfo>
GetDynamicArrayInfoForUID(lldb::user_id_t type_uid,
const ExecutionContext *exe_ctx) override;
@@ -225,7 +223,7 @@ public:
DWARFDIE
GetDeclContextDIEContainingDIE(const DWARFDIE &die);
bool HasForwardDeclForClangType(const CompilerType &compiler_type);
bool HasForwardDeclForCompilerType(const CompilerType &compiler_type);
CompileUnit *GetCompUnitForDWARFCompUnit(DWARFCompileUnit &dwarf_cu);
@@ -325,14 +323,46 @@ public:
m_file_index = file_index;
}
protected:
typedef llvm::DenseMap<const DWARFDebugInfoEntry *, Type *> DIEToTypePtr;
typedef llvm::DenseMap<const DWARFDebugInfoEntry *, lldb::VariableSP>
DIEToVariableSP;
virtual DIEToTypePtr &GetDIEToType() { return m_die_to_type; }
typedef llvm::DenseMap<const DWARFDebugInfoEntry *,
lldb::opaque_compiler_type_t>
DIEToClangType;
typedef llvm::DenseMap<lldb::opaque_compiler_type_t, DIERef> ClangTypeToDIE;
DIEToCompilerType;
virtual DIEToCompilerType &GetForwardDeclDIEToCompilerType() {
return m_forward_decl_die_to_compiler_type;
}
typedef llvm::DenseMap<lldb::opaque_compiler_type_t, DIERef>
CompilerTypeToDIE;
virtual CompilerTypeToDIE &GetForwardDeclCompilerTypeToDIE() {
return m_forward_decl_compiler_type_to_die;
}
virtual UniqueDWARFASTTypeMap &GetUniqueDWARFASTTypeMap();
bool ClassOrStructIsVirtual(const DWARFDIE &die);
SymbolFileDWARFDebugMap *GetDebugMapSymfile();
virtual lldb::TypeSP
FindDefinitionTypeForDWARFDeclContext(const DWARFDIE &die);
virtual lldb::TypeSP FindCompleteObjCDefinitionTypeForDIE(
const DWARFDIE &die, ConstString type_name, bool must_be_implementation);
Type *ResolveTypeUID(lldb::user_id_t type_uid) override;
Type *ResolveTypeUID(const DWARFDIE &die, bool assert_not_being_parsed);
Type *ResolveTypeUID(const DIERef &die_ref);
protected:
typedef llvm::DenseMap<const DWARFDebugInfoEntry *, lldb::VariableSP>
DIEToVariableSP;
SymbolFileDWARF(const SymbolFileDWARF &) = delete;
const SymbolFileDWARF &operator=(const SymbolFileDWARF &) = delete;
@@ -371,10 +401,6 @@ protected:
bool ParseSupportFiles(DWARFUnit &dwarf_cu, const lldb::ModuleSP &module,
FileSpecList &support_files);
Type *ResolveTypeUID(const DWARFDIE &die, bool assert_not_being_parsed);
Type *ResolveTypeUID(const DIERef &die_ref);
lldb::VariableSP ParseVariableDIE(const SymbolContext &sc,
const DWARFDIE &die,
const lldb::addr_t func_low_pc);
@@ -402,8 +428,6 @@ protected:
DIEArray MergeBlockAbstractParameters(const DWARFDIE &block_die,
DIEArray &&variable_dies);
bool ClassOrStructIsVirtual(const DWARFDIE &die);
// Given a die_offset, figure out the symbol context representing that die.
bool ResolveFunction(const DWARFDIE &die, bool include_inlines,
SymbolContextList &sc_list);
@@ -415,12 +439,6 @@ protected:
void ResolveFunctionAndBlock(lldb::addr_t file_vm_addr, bool lookup_block,
SymbolContext &sc);
virtual lldb::TypeSP
FindDefinitionTypeForDWARFDeclContext(const DWARFDIE &die);
virtual lldb::TypeSP FindCompleteObjCDefinitionTypeForDIE(
const DWARFDIE &die, ConstString type_name, bool must_be_implementation);
Symbol *GetObjCClassSymbol(ConstString objc_class_name);
lldb::TypeSP GetTypeForDIE(const DWARFDIE &die,
@@ -430,8 +448,6 @@ protected:
m_debug_map_module_wp = module_sp;
}
SymbolFileDWARFDebugMap *GetDebugMapSymfile();
DWARFDIE
FindBlockContainingSpecification(const DIERef &func_die_ref,
dw_offset_t spec_block_die_offset);
@@ -440,8 +456,6 @@ protected:
FindBlockContainingSpecification(const DWARFDIE &die,
dw_offset_t spec_block_die_offset);
virtual UniqueDWARFASTTypeMap &GetUniqueDWARFASTTypeMap();
bool DIEDeclContextsMatch(const DWARFDIE &die1, const DWARFDIE &die2);
bool ClassContainsSelector(const DWARFDIE &class_die, ConstString selector);
@@ -473,18 +487,8 @@ protected:
void UpdateExternalModuleListIfNeeded();
virtual DIEToTypePtr &GetDIEToType() { return m_die_to_type; }
virtual DIEToVariableSP &GetDIEToVariable() { return m_die_to_variable_sp; }
virtual DIEToClangType &GetForwardDeclDieToClangType() {
return m_forward_decl_die_to_clang_type;
}
virtual ClangTypeToDIE &GetForwardDeclClangTypeToDie() {
return m_forward_decl_clang_type_to_die;
}
void BuildCuTranslationTable();
std::optional<uint32_t> GetDWARFUnitIndex(uint32_t cu_idx);
@@ -528,8 +532,8 @@ protected:
UniqueDWARFASTTypeMap m_unique_ast_type_map;
DIEToTypePtr m_die_to_type;
DIEToVariableSP m_die_to_variable_sp;
DIEToClangType m_forward_decl_die_to_clang_type;
ClangTypeToDIE m_forward_decl_clang_type_to_die;
DIEToCompilerType m_forward_decl_die_to_compiler_type;
CompilerTypeToDIE m_forward_decl_compiler_type_to_die;
llvm::DenseMap<dw_offset_t, FileSpecList> m_type_unit_support_files;
std::vector<uint32_t> m_lldb_cu_to_dwarf_unit;
/// DWARF does not provide a good way for traditional (concatenating) linkers

2
lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
View File

@@ -803,7 +803,7 @@ bool SymbolFileDWARFDebugMap::CompleteType(CompilerType &compiler_type) {
bool success = false;
if (compiler_type) {
ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
if (oso_dwarf->HasForwardDeclForClangType(compiler_type)) {
if (oso_dwarf->HasForwardDeclForCompilerType(compiler_type)) {
oso_dwarf->CompleteType(compiler_type);
success = true;
return true;

12
lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDwo.cpp
View File

@@ -99,14 +99,14 @@ SymbolFileDWARF::DIEToVariableSP &SymbolFileDWARFDwo::GetDIEToVariable() {
return GetBaseSymbolFile().GetDIEToVariable();
}
SymbolFileDWARF::DIEToClangType &
SymbolFileDWARFDwo::GetForwardDeclDieToClangType() {
return GetBaseSymbolFile().GetForwardDeclDieToClangType();
SymbolFileDWARF::DIEToCompilerType &
SymbolFileDWARFDwo::GetForwardDeclDIEToCompilerType() {
return GetBaseSymbolFile().GetForwardDeclDIEToCompilerType();
}
SymbolFileDWARF::ClangTypeToDIE &
SymbolFileDWARFDwo::GetForwardDeclClangTypeToDie() {
return GetBaseSymbolFile().GetForwardDeclClangTypeToDie();
SymbolFileDWARF::CompilerTypeToDIE &
SymbolFileDWARFDwo::GetForwardDeclCompilerTypeToDIE() {
return GetBaseSymbolFile().GetForwardDeclCompilerTypeToDIE();
}
void SymbolFileDWARFDwo::GetObjCMethods(

4
lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDwo.h
View File

@@ -56,9 +56,9 @@ protected:
DIEToVariableSP &GetDIEToVariable() override;
DIEToClangType &GetForwardDeclDieToClangType() override;
DIEToCompilerType &GetForwardDeclDIEToCompilerType() override;
ClangTypeToDIE &GetForwardDeclClangTypeToDie() override;
CompilerTypeToDIE &GetForwardDeclCompilerTypeToDIE() override;
UniqueDWARFASTTypeMap &GetUniqueDWARFASTTypeMap() override;