Containing protected virtual methods for child classes to override. More...

#include <SymbolFile.h>

Inheritance diagram for lldb_private::SymbolFileCommon:

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Collaboration diagram for lldb_private::SymbolFileCommon:

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Public Member Functions
	SymbolFileCommon (lldb::ObjectFileSP objfile_sp)

	~SymbolFileCommon () override=default

uint32_t	GetAbilities () override
	Get a mask of what this symbol file supports for the object file that it was constructed with. More...

Symtab *	GetSymtab () override

ObjectFile *	GetObjectFile () override

const ObjectFile *	GetObjectFile () const override

ObjectFile *	GetMainObjectFile () override

void	SectionFileAddressesChanged () override
	Notify the SymbolFile that the file addresses in the Sections for this module have been changed. More...

uint32_t	GetNumCompileUnits () override

lldb::CompUnitSP	GetCompileUnitAtIndex (uint32_t idx) override

llvm::Expected< lldb_private::TypeSystem & >	GetTypeSystemForLanguage (lldb::LanguageType language) override

void	Dump (Stream &s) override

uint64_t	GetDebugInfoSize () override
	Metrics gathering functions. More...

bool	GetDebugInfoIndexWasLoadedFromCache () const override
	Accessors for the bool that indicates if the debug info index was loaded from, or saved to the module index cache. More...

void	SetDebugInfoIndexWasLoadedFromCache () override

bool	GetDebugInfoIndexWasSavedToCache () const override

void	SetDebugInfoIndexWasSavedToCache () override

Public Member Functions inherited from lldb_private::SymbolFile
	SymbolFile ()=default

	~SymbolFile () override=default

virtual SymbolFile *	GetBackingSymbolFile ()
	SymbolFileOnDemand class overrides this to return the underlying backing SymbolFile implementation that loads on-demand. More...

virtual uint32_t	CalculateAbilities ()=0

virtual std::recursive_mutex &	GetModuleMutex () const
	Symbols file subclasses should override this to return the Module that owns the TypeSystem that this symbol file modifies type information in. More...

virtual void	InitializeObject ()
	Initialize the SymbolFile object. More...

virtual bool	GetLoadDebugInfoEnabled ()
	Whether debug info will be loaded or not. More...

virtual void	SetLoadDebugInfoEnabled ()
	Specify debug info should be loaded. More...

virtual lldb::LanguageType	ParseLanguage (CompileUnit &comp_unit)=0

virtual XcodeSDK	ParseXcodeSDK (CompileUnit &comp_unit)
	Return the Xcode SDK comp_unit was compiled against. More...

virtual size_t	ParseFunctions (CompileUnit &comp_unit)=0

virtual bool	ParseLineTable (CompileUnit &comp_unit)=0

virtual bool	ParseDebugMacros (CompileUnit &comp_unit)=0

virtual bool	ForEachExternalModule (lldb_private::CompileUnit &comp_unit, llvm::DenseSet< lldb_private::SymbolFile * > &visited_symbol_files, llvm::function_ref< bool(Module &)> lambda)
	Apply a lambda to each external lldb::Module referenced by this `comp_unit`. More...

virtual bool	ParseSupportFiles (CompileUnit &comp_unit, FileSpecList &support_files)=0

virtual size_t	ParseTypes (CompileUnit &comp_unit)=0

virtual bool	ParseIsOptimized (CompileUnit &comp_unit)

virtual bool	ParseImportedModules (const SymbolContext &sc, std::vector< SourceModule > &imported_modules)=0

virtual size_t	ParseBlocksRecursive (Function &func)=0

virtual size_t	ParseVariablesForContext (const SymbolContext &sc)=0

virtual Type *	ResolveTypeUID (lldb::user_id_t type_uid)=0

virtual llvm::Optional< ArrayInfo >	GetDynamicArrayInfoForUID (lldb::user_id_t type_uid, const lldb_private::ExecutionContext *exe_ctx)=0
	If `type_uid` points to an array type, return its characteristics. More...

virtual bool	CompleteType (CompilerType &compiler_type)=0

virtual void	ParseDeclsForContext (CompilerDeclContext decl_ctx)

virtual CompilerDecl	GetDeclForUID (lldb::user_id_t uid)

virtual CompilerDeclContext	GetDeclContextForUID (lldb::user_id_t uid)

virtual CompilerDeclContext	GetDeclContextContainingUID (lldb::user_id_t uid)

virtual uint32_t	ResolveSymbolContext (const Address &so_addr, lldb::SymbolContextItem resolve_scope, SymbolContext &sc)=0

virtual uint32_t	ResolveSymbolContext (const SourceLocationSpec &src_location_spec, lldb::SymbolContextItem resolve_scope, SymbolContextList &sc_list)

virtual void	DumpClangAST (Stream &s)

virtual void	FindGlobalVariables (ConstString name, const CompilerDeclContext &parent_decl_ctx, uint32_t max_matches, VariableList &variables)

virtual void	FindGlobalVariables (const RegularExpression &regex, uint32_t max_matches, VariableList &variables)

virtual void	FindFunctions (ConstString name, const CompilerDeclContext &parent_decl_ctx, lldb::FunctionNameType name_type_mask, bool include_inlines, SymbolContextList &sc_list)

virtual void	FindFunctions (const RegularExpression &regex, bool include_inlines, SymbolContextList &sc_list)

virtual void	FindTypes (ConstString name, const CompilerDeclContext &parent_decl_ctx, uint32_t max_matches, llvm::DenseSet< lldb_private::SymbolFile * > &searched_symbol_files, TypeMap &types)

virtual void	FindTypes (llvm::ArrayRef< CompilerContext > pattern, LanguageSet languages, llvm::DenseSet< lldb_private::SymbolFile * > &searched_symbol_files, TypeMap &types)
	Find types specified by a CompilerContextPattern. More...

virtual void	GetMangledNamesForFunction (const std::string &scope_qualified_name, std::vector< ConstString > &mangled_names)

virtual void	GetTypes (lldb_private::SymbolContextScope *sc_scope, lldb::TypeClass type_mask, lldb_private::TypeList &type_list)=0

virtual void	PreloadSymbols ()

virtual CompilerDeclContext	FindNamespace (ConstString name, const CompilerDeclContext &parent_decl_ctx)

virtual std::vector< std::unique_ptr< CallEdge > >	ParseCallEdgesInFunction (UserID func_id)

virtual void	AddSymbols (Symtab &symtab)

virtual lldb::UnwindPlanSP	GetUnwindPlan (const Address &address, const RegisterInfoResolver &resolver)

virtual llvm::Expected< lldb::addr_t >	GetParameterStackSize (Symbol &symbol)
	Return the number of stack bytes taken up by the parameters to this function. More...

virtual StatsDuration::Duration	GetDebugInfoParseTime ()
	Return the time taken to parse the debug information. More...

virtual StatsDuration::Duration	GetDebugInfoIndexTime ()
	Return the time it took to index the debug information in the object file. More...

virtual ModuleList	GetDebugInfoModules ()
	Get the additional modules that this symbol file uses to parse debug info. More...

Public Member Functions inherited from lldb_private::PluginInterface
	PluginInterface ()=default

virtual	~PluginInterface ()=default

virtual llvm::StringRef	GetPluginName ()=0

	PluginInterface (const PluginInterface &)=delete

PluginInterface &	operator= (const PluginInterface &)=delete

Protected Member Functions
virtual uint32_t	CalculateNumCompileUnits ()=0

virtual lldb::CompUnitSP	ParseCompileUnitAtIndex (uint32_t idx)=0

virtual TypeList &	GetTypeList ()

void	SetCompileUnitAtIndex (uint32_t idx, const lldb::CompUnitSP &cu_sp)

Protected Member Functions inherited from lldb_private::SymbolFile
void	AssertModuleLock ()

Protected Attributes
lldb::ObjectFileSP	m_objfile_sp

llvm::Optional< std::vector< lldb::CompUnitSP > >	m_compile_units

TypeList	m_type_list

Symtab *	m_symtab = nullptr

uint32_t	m_abilities = 0

bool	m_calculated_abilities = false

bool	m_index_was_loaded_from_cache = false

bool	m_index_was_saved_to_cache = false

Private Member Functions
	SymbolFileCommon (const SymbolFileCommon &)=delete

const SymbolFileCommon &	operator= (const SymbolFileCommon &)=delete

Static Private Attributes
static char	ID
	LLVM RTTI support. More...

bool	isA (const void *ClassID) const override
	LLVM RTTI support. More...

static bool	classof (const SymbolFileCommon *obj)

Additional Inherited Members
Public Types inherited from lldb_private::SymbolFile
enum	Abilities { CompileUnits = (1u << 0), LineTables = (1u << 1), Functions = (1u << 2), Blocks = (1u << 3), GlobalVariables = (1u << 4), LocalVariables = (1u << 5), VariableTypes = (1u << 6), kAllAbilities = ((1u << 7) - 1u) }

Static Public Member Functions inherited from lldb_private::SymbolFile
static SymbolFile *	FindPlugin (lldb::ObjectFileSP objfile_sp)

static bool	classof (const SymbolFile *obj)

Detailed Description

Containing protected virtual methods for child classes to override.

Most actual SymbolFile implementations should inherit from this class.

Definition at line 374 of file SymbolFile.h.

Constructor & Destructor Documentation

◆ SymbolFileCommon() [1/2]

lldb_private::SymbolFileCommon::SymbolFileCommon ( lldb::ObjectFileSP objfile_sp )

inline

Definition at line 388 of file SymbolFile.h.

◆ ~SymbolFileCommon()

lldb_private::SymbolFileCommon::~SymbolFileCommon ( )

overridedefault

◆ SymbolFileCommon() [2/2]

lldb_private::SymbolFileCommon::SymbolFileCommon ( const SymbolFileCommon & )

privatedelete

Member Function Documentation

◆ CalculateNumCompileUnits()

virtual uint32_t lldb_private::SymbolFileCommon::CalculateNumCompileUnits ( )

protectedpure virtual

Implemented in SymbolFileDWARF, lldb_private::breakpad::SymbolFileBreakpad, SymbolFileDWARFDebugMap, lldb_private::npdb::SymbolFileNativePDB, SymbolFilePDB, and SymbolFileSymtab.

◆ classof()

static bool lldb_private::SymbolFileCommon::classof ( const SymbolFileCommon * obj )

inlinestatic

Definition at line 384 of file SymbolFile.h.

References ID, and isA().

◆ Dump()

void SymbolFileCommon::Dump ( Stream & s )

overridevirtual

Implements lldb_private::SymbolFile.

Reimplemented in SymbolFileDWARF.

Definition at line 253 of file SymbolFile.cpp.

References lldb_private::eSortOrderNone, lldb_private::Stream::Format(), lldb_private::Stream::PutChar(), and lldb_private::Stream::PutCString().

◆ GetAbilities()

uint32_t lldb_private::SymbolFileCommon::GetAbilities ( )

inlineoverridevirtual

Get a mask of what this symbol file supports for the object file that it was constructed with.

Each symbol file gets to respond with a mask of abilities that it supports for each object file. This happens when we are trying to figure out which symbol file plug-in will get used for a given object file. The plug-in that responds with the best mix of "SymbolFile::Abilities" bits set, will get chosen to be the symbol file parser. This allows each plug-in to check for sections that contain data a symbol file plug-in would need. For example the DWARF plug-in requires DWARF sections in a file that contain debug information. If the DWARF plug-in doesn't find these sections, it won't respond with many ability bits set, and we will probably fall back to the symbol table SymbolFile plug-in which uses any information in the symbol table. Also, plug-ins might check for some specific symbols in a symbol table in the case where the symbol table contains debug information (STABS and COFF). Not a lot of work should happen in these functions as the plug-in might not get selected due to another plug-in having more abilities. Any initialization work should be saved for "void SymbolFile::InitializeObject()" which will get called on the SymbolFile object with the best set of abilities.

Returns: A uint32_t mask containing bits from the SymbolFile::Abilities enumeration. Any bits that are set represent an ability that this symbol plug-in can parse from the object file.

Implements lldb_private::SymbolFile.

Definition at line 393 of file SymbolFile.h.

References lldb_private::SymbolFile::CalculateAbilities(), m_abilities, and m_calculated_abilities.

◆ GetCompileUnitAtIndex()

CompUnitSP SymbolFileCommon::GetCompileUnitAtIndex ( uint32_t idx )

overridevirtual

Implements lldb_private::SymbolFile.

Definition at line 204 of file SymbolFile.cpp.

Referenced by SymbolFileDWARF::GetDWOId().

◆ GetDebugInfoIndexWasLoadedFromCache()

bool lldb_private::SymbolFileCommon::GetDebugInfoIndexWasLoadedFromCache ( ) const

inlineoverridevirtual

Accessors for the bool that indicates if the debug info index was loaded from, or saved to the module index cache.

In statistics it is handy to know if a module's debug info was loaded from or saved to the cache. When the debug info index is loaded from the cache startup times can be faster. When the cache is enabled and the debug info index is saved to the cache, debug sessions can be slower. These accessors can be accessed by the statistics and emitted to help track these costs.

Implements lldb_private::SymbolFile.

Definition at line 425 of file SymbolFile.h.

References m_index_was_loaded_from_cache.

◆ GetDebugInfoIndexWasSavedToCache()

bool lldb_private::SymbolFileCommon::GetDebugInfoIndexWasSavedToCache ( ) const

inlineoverridevirtual

Implements lldb_private::SymbolFile.

Definition at line 431 of file SymbolFile.h.

References m_index_was_saved_to_cache.

◆ GetDebugInfoSize()

uint64_t SymbolFileCommon::GetDebugInfoSize ( )

overridevirtual

Metrics gathering functions.

Return the size in bytes of all debug information in the symbol file.

If the debug information is contained in sections of an ObjectFile, then this call should add the size of all sections that contain debug information. Symbols the symbol tables are not considered debug information for this call to make it easy and quick for this number to be calculated. If the symbol file is all debug information, the size of the entire file should be returned. The default implementation of this function will iterate over all sections in a module and add up their debug info only section byte sizes.

Implements lldb_private::SymbolFile.

Reimplemented in lldb_private::breakpad::SymbolFileBreakpad, and lldb_private::npdb::SymbolFileNativePDB.

Definition at line 241 of file SymbolFile.cpp.

References lldb_private::SectionList::GetDebugInfoSize().