EmulateFunction Class Reference

Inheritance diagram for EmulateFunction:

Public Member Functions
	EmulateFunction (Funcdata *f)
void	setLoadCollect (bool val)
virtual void	setExecuteAddress (const Address &addr)
	Set the address of the next instruction to emulate.
virtual uintb	getVarnodeValue (Varnode *vn) const
	Given a specific Varnode, retrieve the current value for it from the machine state. More...
virtual void	setVarnodeValue (Varnode *vn, uintb val)
	Given a specific Varnode, set the given value for it in the current machine state. More...
uintb	emulatePath (uintb val, const PathMeld &pathMeld, PcodeOp *startop, Varnode *startvn)
void	collectLoadPoints (vector< LoadTable > &res) const
Public Member Functions inherited from EmulatePcodeOp
	EmulatePcodeOp (Architecture *g)
	Constructor. More...
void	setCurrentOp (PcodeOp *op)
	Establish the current PcodeOp being emulated. More...
virtual Address	getExecuteAddress (void) const
	Get the address of the current instruction being executed.
Public Member Functions inherited from Emulate
	Emulate (void)
	generic emulator constructor
void	setHalt (bool val)
	Set the halt state of the emulator. More...
bool	getHalt (void) const
	Get the halt state of the emulator. More...
void	executeCurrentOp (void)
	Do a single pcode op step. More...

Private Member Functions
virtual void	executeLoad (void)
	Standard behavior for a p-code LOAD.
virtual void	executeBranch (void)
	Standard behavior for a BRANCH. More...
virtual void	executeBranchind (void)
	Standard behavior for a BRANCHIND.
virtual void	executeCall (void)
	Standard behavior for a p-code CALL.
virtual void	executeCallind (void)
	Standard behavior for a CALLIND.
virtual void	executeCallother (void)
	Standard behavior for a user-defined p-code op.
virtual void	fallthruOp (void)
	Standard p-code fall-thru semantics.

Private Attributes
Funcdata *	fd
map< Varnode *, uintb >	varnodeMap
bool	collectloads
vector< LoadTable >	loadpoints

Additional Inherited Members
Protected Member Functions inherited from EmulatePcodeOp
virtual uintb	getLoadImageValue (AddrSpace *spc, uintb offset, int4 sz) const
	Pull a value from the load-image given a specific address. More...
virtual void	executeUnary (void)
	Execute a unary arithmetic/logical operation.
virtual void	executeBinary (void)
	Execute a binary arithmetic/logical operation.
virtual void	executeStore (void)
	Standard behavior for a p-code STORE.
virtual bool	executeCbranch (void)
	Check if the conditional of a CBRANCH is true. More...
virtual void	executeMultiequal (void)
	Standard behavior for a MULTIEQUAL (phi-node)
virtual void	executeIndirect (void)
	Standard behavior for an INDIRECT op.
virtual void	executeSegmentOp (void)
	Behavior for a SEGMENTOP.
virtual void	executeCpoolRef (void)
	Standard behavior for a CPOOLREF (constant pool reference) op.
virtual void	executeNew (void)
	Standard behavior for (low-level) NEW op.
Protected Attributes inherited from EmulatePcodeOp
Architecture *	glb
	The underlying Architecture for the program being emulated.
PcodeOp *	currentOp
	Current PcodeOp being executed.
PcodeOp *	lastOp
	Last PcodeOp that was executed.
Protected Attributes inherited from Emulate
bool	emu_halted
	Set to true if the emulator is halted.
OpBehavior *	currentBehave
	Behavior of the next op to execute.

Member Function Documentation

executeBranch()

void EmulateFunction::executeBranch ( void  )

privatevirtual

Standard behavior for a BRANCH.

This routine performs a standard p-code BRANCH operation on the memory state. This same routine is used for CBRANCH operations if the condition has evaluated to true.

Implements Emulate.

getVarnodeValue()

uintb EmulateFunction::getVarnodeValue ( Varnode *  vn ) const

virtual

Given a specific Varnode, retrieve the current value for it from the machine state.

This is the placeholder internal operation for obtaining a Varnode value during emulation. The value is loaded using the Varnode as the address and storage size.

Parameters

vn	is the specific Varnode

Returns

the corresponding value from the machine state

Implements EmulatePcodeOp.

References EmulatePcodeOp::getLoadImageValue(), Varnode::getOffset(), Varnode::getSize(), Varnode::getSpace(), and Varnode::isConstant().

Referenced by executeLoad().

setVarnodeValue()

void EmulateFunction::setVarnodeValue ( Varnode *  vn, uintb  val  )

virtual

Given a specific Varnode, set the given value for it in the current machine state.

This is the placeholder internal operation for setting a Varnode value during emulation. The value is stored using the Varnode as the address and storage size.

Parameters

vn	is the specific Varnode
val	is the constant value to store

Implements EmulatePcodeOp.

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

• jumptable.hh
• jumptable.cc