Rose::BinaryAnalysis::Partitioner2::Modules::AddGhostSuccessors Class Reference

Description

Follow basic block ghost edges.

If this callback is registered as a partitioner basic block callback then the partitioner will follow ghost edges when discovering instructions for basic blocks. A ghost edge is a control flow edge whose target address is mentioned in the machine instruction but which is never followed. Examples are branch instructions with opaque predicates due to the compiler not optimizing away the branch.

An alternative to following ghost edges as basic block instructions are discovered is to look for dead code after the function is discovered. That way the CFG does not contain edges into the dead code, which can make things like data flow analysis faster.

Definition at line 181 of file Modules.h.

#include <Rose/BinaryAnalysis/Partitioner2/Modules.h>

Inheritance diagram for Rose::BinaryAnalysis::Partitioner2::Modules::AddGhostSuccessors:

Collaboration diagram for Rose::BinaryAnalysis::Partitioner2::Modules::AddGhostSuccessors:

Public Member Functions
virtual bool	operator() (bool chain, const Args &args) override
	Callback method.
Public Member Functions inherited from Sawyer::SharedObject
	SharedObject ()
	Default constructor.
	SharedObject (const SharedObject &)
	Copy constructor.
virtual	~SharedObject ()
	Virtual destructor.
SharedObject &	operator= (const SharedObject &)
	Assignment.

Static Public Member Functions
static Ptr	instance ()

Additional Inherited Members
Public Types inherited from Rose::BinaryAnalysis::Partitioner2::BasicBlockCallback
enum	Termination {   CONTINUE_DISCOVERY ,   TERMINATE_NOW ,   TERMINATE_PRIOR }
	Whether to terminate a basic block. More...
using	Ptr = BasicBlockCallbackPtr
	Shared-ownership pointer to a BasicBlockCallback.

Member Function Documentation

instance()

static Ptr Rose::BinaryAnalysis::Partitioner2::Modules::AddGhostSuccessors::instance ( )

inlinestatic

Definition at line 183 of file Modules.h.

operator()()

virtual bool Rose::BinaryAnalysis::Partitioner2::Modules::AddGhostSuccessors::operator() ( bool  chain, const Args &    )

overridevirtual

Callback method.

This is the method invoked for the callback. The chain argument is the return value from the previous callback in the list (true for the first callback). The successor callbacks use chain to indicate whether subsequent callbacks should do anything.

Implements Rose::BinaryAnalysis::Partitioner2::BasicBlockCallback.

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

• Modules.h