Collapse contiguous stores: *ptr = SUB(x,0); *(ptr + 4) = SUB(x,4) => *ptr = x More...

#include <double.hh>

Inheritance diagram for ghidra::RuleDoubleStore:

Collaboration diagram for ghidra::RuleDoubleStore:

Public Member Functions
	RuleDoubleStore (const string &g)

virtual Rule *	clone (const ActionGroupList &grouplist) const
	Clone the Rule.

virtual void	getOpList (vector< uint4 > &oplist) const
	List of op codes this rule operates on.

virtual int4	applyOp (PcodeOp *op, Funcdata &data)
	Attempt to apply this Rule.

Public Member Functions inherited from ghidra::Rule
	Rule (const string &g, uint4 fl, const string &nm)
	Construct given group, properties name.

virtual	~Rule (void)
	Destructor.

const string &	getName (void) const
	Return the name of this Rule.

const string &	getGroup (void) const
	Return the group this Rule belongs to.

uint4	getNumTests (void)
	Get number of attempted applications.

uint4	getNumApply (void)
	Get number of successful applications.

void	setBreak (uint4 tp)
	Set a breakpoint on this Rule.

void	clearBreak (uint4 tp)
	Clear a breakpoint on this Rule.

void	clearBreakPoints (void)
	Clear all breakpoints on this Rule.

void	turnOnWarnings (void)
	Enable warnings for this Rule.

void	turnOffWarnings (void)
	Disable warnings for this Rule.

bool	isDisabled (void) const
	Return true if this Rule is disabled.

void	setDisable (void)
	Disable this Rule (within its pool)

void	clearDisable (void)
	Enable this Rule (within its pool)

bool	checkActionBreak (void)
	Check if an action breakpoint is turned on.

uint4	getBreakPoint (void) const
	Return breakpoint toggles.

virtual void	reset (Funcdata &data)
	Reset this Rule.

virtual void	resetStats (void)
	Reset Rule statistics.

virtual void	printStatistics (ostream &s) const
	Print statistics for this Rule.

Static Public Member Functions
static bool	testIndirectUse (PcodeOp op1, PcodeOp op2, const vector< PcodeOp * > &indirects)
	Test if output Varnodes from a list of PcodeOps are used anywhere within a range of PcodeOps.

static void	reassignIndirects (Funcdata &data, PcodeOp newStore, const vector< PcodeOp > &indirects)
	Reassign INDIRECTs to a new given STORE.

Additional Inherited Members
Public Types inherited from ghidra::Rule
enum	typeflags { type_disable = 1 , rule_debug = 2 , warnings_on = 4 , warnings_given = 8 }
	Properties associated with a Rule. More...

Detailed Description

Collapse contiguous stores: *ptr = SUB(x,0); *(ptr + 4) = SUB(x,4) => *ptr = x

Member Function Documentation

◆ applyOp()

int4 ghidra::RuleDoubleStore::applyOp	(	PcodeOp *	op,
		Funcdata &	data
	)

virtual

Attempt to apply this Rule.

This method contains the main logic for applying the Rule. It must use a given PcodeOp as the point at which the Rule applies. If it does apply, changes are made directly to the function and 1 (non-zero) is returned, otherwise 0 is returned.

Parameters

op	is the given PcodeOp where the Rule may apply
data	is the function to which to apply

Reimplemented from ghidra::Rule.

References ghidra::Varnode::beginDescend(), ghidra::PcodeOp::code(), ghidra::CPUI_STORE, ghidra::CPUI_SUBPIECE, ghidra::Varnode::endDescend(), ghidra::PcodeOp::getAddr(), ghidra::Varnode::getDef(), ghidra::PcodeOp::getIn(), ghidra::Varnode::getOffset(), ghidra::PcodeOp::getOut(), ghidra::Varnode::getSize(), ghidra::Varnode::isConstant(), ghidra::Varnode::isFree(), ghidra::Varnode::isPrecisHi(), ghidra::Varnode::isPrecisLo(), ghidra::Varnode::isWritten(), ghidra::Funcdata::newConstant(), ghidra::Funcdata::newOp(), ghidra::Funcdata::newVarnodeSpace(), ghidra::RuleDoubleLoad::noWriteConflict(), ghidra::Funcdata::opDestroy(), ghidra::Funcdata::opInsertAfter(), ghidra::Funcdata::opSetInput(), ghidra::Funcdata::opSetOpcode(), reassignIndirects(), ghidra::SplitVarnode::testContiguousPointers(), and testIndirectUse().

◆ clone()

virtual Rule * ghidra::RuleDoubleStore::clone ( const ActionGroupList & grouplist ) const

inlinevirtual

Clone the Rule.

If this Rule is a member of one of the groups in the grouplist, this returns a clone of the Rule, otherwise NULL is returned.

Parameters

grouplist is the list of groups being cloned

Returns: the cloned Rule or NULL

Implements ghidra::Rule.

References ghidra::ActionGroupList::contains(), and ghidra::Rule::getGroup().

◆ getOpList()

void ghidra::RuleDoubleStore::getOpList ( vector< uint4 > & oplist ) const

virtual

List of op codes this rule operates on.

Populate the given array with all possible OpCodes this Rule might apply to. By default, this method returns all possible OpCodes

Parameters

oplist is the array to populate

Reimplemented from ghidra::Rule.

References ghidra::CPUI_STORE.

◆ reassignIndirects()

void ghidra::RuleDoubleStore::reassignIndirects	(	Funcdata &	data,
		PcodeOp *	newStore,
		const vector< PcodeOp * > &	indirects
	)

static

Reassign INDIRECTs to a new given STORE.

The INDIRECTs are associated with old STOREs that are being removed. Each INDIRECT is moved from its position near the old STORE to be near the new STORE and the affect iop operand is set to point at the new STORE.

Parameters

data	is the function owning the INDIRECTs
newStore	is the given new STORE PcodeOp
indirects	is the list of INDIRECT PcodeOps to reassign

References ghidra::PcodeOp::clearMark(), ghidra::Varnode::getDef(), ghidra::PcodeOp::getIn(), ghidra::PcodeOp::isDead(), ghidra::PcodeOp::isMark(), ghidra::Varnode::isWritten(), ghidra::Funcdata::newVarnodeIop(), ghidra::Funcdata::opDestroy(), ghidra::Funcdata::opInsertBefore(), ghidra::Funcdata::opSetInput(), ghidra::Funcdata::opUninsert(), and ghidra::PcodeOp::setMark().

Referenced by applyOp().

◆ testIndirectUse()

bool ghidra::RuleDoubleStore::testIndirectUse	(	PcodeOp *	op1,
		PcodeOp *	op2,
		const vector< PcodeOp * > &	indirects
	)

static

Test if output Varnodes from a list of PcodeOps are used anywhere within a range of PcodeOps.

The range of PcodeOps bounded by given starting and ending PcodeOps. An output Varnode is used within the range if there is a PcodeOp in the range that takes the Varnode as input.

Parameters

op1	is the given starting PcodeOp of the range
op2	is the given ending PcodeOp of the range
indirects	is the list of PcodesOps whose output are tested

Returns: true if no output in the list is used in the range

References ghidra::Varnode::beginDescend(), ghidra::PcodeOp::code(), ghidra::CPUI_INDIRECT, ghidra::Varnode::endDescend(), ghidra::Varnode::getAddr(), ghidra::PcodeOp::getIn(), ghidra::PcodeOp::getOpFromConst(), ghidra::SeqNum::getOrder(), ghidra::PcodeOp::getParent(), and ghidra::PcodeOp::getSeqNum().

Referenced by applyOp().

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

/builds/appsec/reveng-binrw/ghidraplusplus/src/dec/double.hh
/builds/appsec/reveng-binrw/ghidraplusplus/src/dec/double.cc

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ applyOp()

◆ clone()

◆ getOpList()

◆ reassignIndirects()

◆ testIndirectUse()