decompiler  1.0.0
Public Member Functions | Private Member Functions | List of all members
ghidra::RulePtrsubCharConstant Class Reference

Cleanup: Set-up to print string constants. More...

Inheritance diagram for ghidra::RulePtrsubCharConstant:
ghidra::Rule

Public Member Functions

 RulePtrsubCharConstant (const string &g)
 Constructor.
 
virtual Ruleclone (const ActionGroupList &grouplist) const
 Clone the Rule. More...
 
virtual void getOpList (vector< uint4 > &oplist) const
 List of op codes this rule operates on. More...
 
virtual int4 applyOp (PcodeOp *op, Funcdata &data)
 Attempt to apply this Rule. More...
 
- Public Member Functions inherited from ghidra::Rule
 Rule (const string &g, uint4 fl, const string &nm)
 Construct given group, properties name. More...
 
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. More...
 
uint4 getBreakPoint (void) const
 Return breakpoint toggles.
 
virtual void reset (Funcdata &data)
 Reset this Rule. More...
 
virtual void resetStats (void)
 Reset Rule statistics. More...
 
virtual void printStatistics (ostream &s) const
 Print statistics for this Rule. More...
 

Private Member Functions

bool pushConstFurther (Funcdata &data, TypePointer *outtype, PcodeOp *op, int4 slot, uintb val)
 Try to push constant pointer further. More...
 

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

Cleanup: Set-up to print string constants.

If a SUBPIECE refers to a global symbol, the output of the SUBPIECE is a (char *), and the address is read-only, then get rid of the SUBPIECE in favor of printing a constant string.

Member Function Documentation

◆ applyOp()

int4 ghidra::RulePtrsubCharConstant::applyOp ( PcodeOp op,
Funcdata data 
)
virtual

◆ clone()

virtual Rule* ghidra::RulePtrsubCharConstant::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
grouplistis the list of groups being cloned
Returns
the cloned Rule or NULL

Implements ghidra::Rule.

References ghidra::ActionGroupList::contains().

◆ getOpList()

void ghidra::RulePtrsubCharConstant::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
oplistis the array to populate

Reimplemented from ghidra::Rule.

References ghidra::CPUI_PTRSUB.

◆ pushConstFurther()

bool ghidra::RulePtrsubCharConstant::pushConstFurther ( Funcdata data,
TypePointer outtype,
PcodeOp op,
int4  slot,
uintb  val 
)
private

Try to push constant pointer further.

Given a PTRSUB has been collapsed to a constant COPY of a string address, try to collapse descendant any PTRADD.

Parameters
datais the function being analyzed
outtypeis the data-type associated with the constant
opis the putative descendant PTRADD
slotis the input slot receiving the collapsed PTRSUB
valis the constant pointer value
Returns
true if the descendant was collapsed

References ghidra::PcodeOp::code(), ghidra::CPUI_COPY, ghidra::CPUI_PTRADD, ghidra::PcodeOp::getIn(), ghidra::Varnode::getOffset(), ghidra::Varnode::getSize(), ghidra::Varnode::isConstant(), ghidra::Funcdata::newConstant(), ghidra::Funcdata::opRemoveInput(), ghidra::Funcdata::opSetInput(), ghidra::Funcdata::opSetOpcode(), and ghidra::Varnode::updateType().


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