ObjcObjectChecker Class Reference

Inheritance diagram for ObjcObjectChecker:

Public Types
enum	msgSend_type {   eMsgSend = 0 , eMsgSendSuper , eMsgSendSuper_stret , eMsgSend_fpret ,   eMsgSend_stret }

Public Member Functions
	ObjcObjectChecker (llvm::Module &module, std::shared_ptr< UtilityFunction > checker_function)
	~ObjcObjectChecker () override=default
Public Member Functions inherited from Instrumenter
	Instrumenter (llvm::Module &module, std::shared_ptr< UtilityFunction > checker_function)
	Constructor.
virtual	~Instrumenter ()=default
bool	Inspect (llvm::Function &function)
	Inspect a function to find instructions to instrument.
bool	Instrument ()
	Instrument all the instructions found by Inspect()

Public Attributes
std::map< llvm::Instruction *, msgSend_type >	msgSend_types

Protected Member Functions
bool	InstrumentInstruction (llvm::Instruction *inst) override
	Add instrumentation to a single instruction.
bool	InspectInstruction (llvm::Instruction &i) override
	Determine whether a single instruction is interesting to instrument, and, if so, call RegisterInstruction.
Protected Member Functions inherited from Instrumenter
void	RegisterInstruction (llvm::Instruction &inst)
	Register a single instruction to be instrumented.
virtual bool	InspectBasicBlock (llvm::BasicBlock &bb)
	Scan a basic block to see if any instructions are interesting.
virtual bool	InspectFunction (llvm::Function &f)
	Scan a function to see if any instructions are interesting.
llvm::FunctionCallee	BuildObjectCheckerFunc (lldb::addr_t start_address)
	Build a function pointer for a function with signature void (*)(uint8_t*, uint8_t*) with a given address.
PointerType *	GetI8PtrTy ()
IntegerType *	GetIntptrTy ()

Static Protected Member Functions
static llvm::Function *	GetFunction (llvm::Value *value)
static llvm::Function *	GetCalledFunction (llvm::CallInst *inst)

Private Attributes
llvm::FunctionCallee	m_objc_object_check_func

Additional Inherited Members
Protected Types inherited from Instrumenter
typedef std::vector< llvm::Instruction * >	InstVector
typedef InstVector::iterator	InstIterator
Protected Attributes inherited from Instrumenter
InstVector	m_to_instrument
	List of instructions the inspector found.
llvm::Module &	m_module
	The module which is being instrumented.
std::shared_ptr< UtilityFunction >	m_checker_function
	The dynamic checker function for the process.

Detailed Description

Definition at line 268 of file IRDynamicChecks.cpp.

Member Enumeration Documentation

msgSend_type

enum ObjcObjectChecker::msgSend_type

Enumerator
eMsgSend
eMsgSendSuper
eMsgSendSuper_stret
eMsgSend_fpret
eMsgSend_stret

Definition at line 277 of file IRDynamicChecks.cpp.

Constructor & Destructor Documentation

ObjcObjectChecker()

ObjcObjectChecker::ObjcObjectChecker ( llvm::Module & module, std::shared_ptr< UtilityFunction > checker_function )

inline

Definition at line 270 of file IRDynamicChecks.cpp.

References Instrumenter::Instrumenter(), and m_objc_object_check_func.

~ObjcObjectChecker()

ObjcObjectChecker::~ObjcObjectChecker ( )

overridedefault

Member Function Documentation

GetCalledFunction()

llvm::Function * ObjcObjectChecker::GetCalledFunction ( llvm::CallInst * inst )

inlinestaticprotected

Definition at line 362 of file IRDynamicChecks.cpp.

References GetFunction().

Referenced by InspectInstruction().

GetFunction()

llvm::Function * ObjcObjectChecker::GetFunction ( llvm::Value * value )

inlinestaticprotected

Definition at line 344 of file IRDynamicChecks.cpp.

References GetFunction().

Referenced by GetCalledFunction(), and GetFunction().

InspectInstruction()

bool ObjcObjectChecker::InspectInstruction ( llvm::Instruction & i )

inlineoverrideprotectedvirtual

Determine whether a single instruction is interesting to instrument, and, if so, call RegisterInstruction.

Parameters

[in]

i

The instruction to be inspected.

Returns

False if there was an error scanning; true otherwise.

Reimplemented from Instrumenter.

Definition at line 366 of file IRDynamicChecks.cpp.

References eMsgSend, eMsgSend_fpret, eMsgSend_stret, eMsgSendSuper, eMsgSendSuper_stret, lldb_private::Expressions, GetCalledFunction(), lldb_private::GetLog(), LLDB_LOGF, msgSend_types, PrintValue(), and Instrumenter::RegisterInstruction().

InstrumentInstruction()

bool ObjcObjectChecker::InstrumentInstruction ( llvm::Instruction * inst )

inlineoverrideprotectedvirtual

Add instrumentation to a single instruction.

Parameters

[in]

inst

The instruction to be instrumented.

Returns

True on success; false otherwise.

Implements Instrumenter.

Definition at line 288 of file IRDynamicChecks.cpp.

References Instrumenter::BuildObjectCheckerFunc(), eMsgSend, eMsgSend_fpret, eMsgSend_stret, eMsgSendSuper, eMsgSendSuper_stret, Instrumenter::m_checker_function, m_objc_object_check_func, and msgSend_types.

Member Data Documentation

m_objc_object_check_func

llvm::FunctionCallee ObjcObjectChecker::m_objc_object_check_func

private

Definition at line 427 of file IRDynamicChecks.cpp.

Referenced by InstrumentInstruction(), and ObjcObjectChecker().

msgSend_types

std::map<llvm::Instruction *, msgSend_type> ObjcObjectChecker::msgSend_types

Definition at line 285 of file IRDynamicChecks.cpp.

Referenced by InspectInstruction(), and InstrumentInstruction().

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The documentation for this class was generated from the following file:

• IRDynamicChecks.cpp