decompiler
1.0.0
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Convert LOAD operations using a constant offset to COPY. More...
Public Member Functions | |
RuleLoadVarnode (const string &g) | |
Constructor. | |
virtual Rule * | clone (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... | |
Static Private Member Functions | |
static AddrSpace * | correctSpacebase (Architecture *glb, Varnode *vn, AddrSpace *spc) |
Return associated space if given Varnode is an active spacebase. More... | |
static AddrSpace * | vnSpacebase (Architecture *glb, Varnode *vn, uintb &val, AddrSpace *spc) |
Check if given Varnode is spacebase + a constant. More... | |
static AddrSpace * | checkSpacebase (Architecture *glb, PcodeOp *op, uintb &offoff) |
Check if STORE or LOAD is off of a spacebase + constant. More... | |
Friends | |
class | RuleStoreVarnode |
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... | |
Convert LOAD operations using a constant offset to COPY.
The pointer can either be a constant offset into the LOAD's specified address space, or it can be a spacebase register plus an offset, in which case it points into the spacebase register's address space.
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.
Reimplemented from ghidra::Rule.
References ghidra::AddrSpace::addressToByte(), ghidra::Varnode::clearSpacebasePlaceholder(), ghidra::CPUI_COPY, ghidra::Funcdata::getArch(), ghidra::Funcdata::getCallSpecs(), ghidra::PcodeOp::getOut(), ghidra::Varnode::getSize(), ghidra::AddrSpace::getWordSize(), ghidra::Varnode::isSpacebasePlaceholder(), ghidra::Varnode::loneDescend(), ghidra::Funcdata::newVarnode(), ghidra::Funcdata::opRemoveInput(), ghidra::Funcdata::opSetInput(), ghidra::Funcdata::opSetOpcode(), and ghidra::FuncCallSpecs::resolveSpacebaseRelative().
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staticprivate |
Check if STORE or LOAD is off of a spacebase + constant.
If so return the associated space and pass back the offset
glb | is the address space manager |
op | is the STORE or LOAD PcodeOp |
offoff | is a reference to where the offset should get passed back |
References ghidra::PcodeOp::code(), ghidra::CPUI_SEGMENTOP, ghidra::Varnode::getDef(), ghidra::PcodeOp::getIn(), ghidra::Varnode::getOffset(), ghidra::Varnode::getSpaceFromConst(), ghidra::Varnode::isConstant(), and ghidra::Varnode::isWritten().
Referenced by ghidra::RuleStoreVarnode::applyOp().
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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.
grouplist | is the list of groups being cloned |
Implements ghidra::Rule.
References ghidra::ActionGroupList::contains(), and ghidra::AddTreeState::data.
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staticprivate |
Return associated space if given Varnode is an active spacebase.
The Varnode should be a spacebase register input to the function or a constant, and it should get loaded from the correct space.
glb | is the address space manager |
vn | is the given Varnode |
spc | is the address space being loaded from |
References ghidra::Varnode::getAddr(), ghidra::AddrSpace::getContain(), ghidra::Varnode::getSize(), ghidra::Architecture::getSpaceBySpacebase(), ghidra::Varnode::isConstant(), ghidra::Varnode::isInput(), and ghidra::Varnode::isSpacebase().
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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
oplist | is the array to populate |
Reimplemented from ghidra::Rule.
References ghidra::CPUI_LOAD.
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staticprivate |
Check if given Varnode is spacebase + a constant.
If it is, pass back the constant and return the associated space
glb | is the address space manager |
vn | is the given Varnode |
val | is the reference for passing back the constant |
spc | is the space being loaded from |
References ghidra::PcodeOp::code(), ghidra::CPUI_INT_ADD, ghidra::Varnode::getDef(), ghidra::PcodeOp::getIn(), ghidra::Varnode::getOffset(), ghidra::Varnode::isConstant(), and ghidra::Varnode::isWritten().