ghidra::ScoreProtoModel Class Reference

Class for calculating "goodness of fit" of parameter trials against a prototype model. More...

#include <fspec.hh>

Collaboration diagram for ghidra::ScoreProtoModel:

Classes
class	PEntry
	A record mapping trials to parameter entries in the prototype model. More...

Public Member Functions
	ScoreProtoModel (bool isinput, const ProtoModel *mod, int4 numparam)
	Constructor.
void	addParameter (const Address &addr, int4 sz)
	Register a trial to be scored.
void	doScore (void)
	Compute the fitness score.
int4	getScore (void) const
	Get the fitness score.
int4	getNumMismatch (void) const
	Get the number of mismatched trials.

Private Attributes
bool	isinputscore
	True if scoring against input parameters, false for outputs.
vector< PEntry >	entry
	Map of parameter entries corresponding to trials.
const ProtoModel *	model
	Prototype model to score against.
int4	finalscore
	The final fitness score.
int4	mismatch
	Number of trials that don't fit the prototype model at all.

Detailed Description

Class for calculating "goodness of fit" of parameter trials against a prototype model.

The class is instantiated with a prototype model (ProtoModel). A set of Varnode parameter trials are registered by calling addParameter() for each trial. Then calling doScore() computes a score that evaluates how well the set of registered trials fit the prototype model. A lower score indicates a better fit.

Constructor & Destructor Documentation

ScoreProtoModel()

ghidra::ScoreProtoModel::ScoreProtoModel	(	bool	isinput,
		const ProtoModel *	mod,
		int4	numparam
	)

Constructor.

Parameters

isinput	is set to true to compute scores against the input part of the model
mod	is the prototype model to score against
numparam	is the presumed number of trials that will constitute the score

References entry, finalscore, isinputscore, mismatch, and model.

Member Function Documentation

addParameter()

void ghidra::ScoreProtoModel::addParameter	(	const Address &	addr,
		int4	sz
	)

Register a trial to be scored.

Parameters

addr	is the starting address of the trial
sz	is the number of bytes in the trial

References entry, isinputscore, mismatch, model, ghidra::ProtoModel::possibleInputParamWithSlot(), and ghidra::ProtoModel::possibleOutputParamWithSlot().

Referenced by ghidra::ProtoModelMerged::selectModel().

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

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