ghidra::BlockSignature Class Reference

A feature rooted in a basic block. More...

#include <signature.hh>

Inheritance diagram for ghidra::BlockSignature:

Public Member Functions
	BlockSignature (const BlockBasic *b, hashword h, const PcodeOp *o1, const PcodeOp *o2)
	Constructor.
virtual void	encode (Encoder &encoder) const
virtual void	printOrigin (ostream &s) const
	Restore this feature from the given stream.
Public Member Functions inherited from ghidra::Signature
	Signature (hashword h)
	Constructor.
uint4	getHash (void) const
	Get the underyling 32-bit hash of the feature.
void	print (ostream &s) const
	Print the feature hash and a brief description of this feature to the given stream.
int4	compare (const Signature *op2) const
	Compare two features.
virtual	~Signature (void)
	Destructor.
virtual void	decode (Decoder &decoder)
	Encode this feature to the given stream.

Private Attributes
const BlockBasic *	bl
	The root basic block.
const PcodeOp *	op1
	(Form 2)The first operation in sequence in the feature
const PcodeOp *	op2
	(Form 2)The second operation in sequence in the feature

Additional Inherited Members
Static Public Member Functions inherited from ghidra::Signature
static bool	comparePtr (Signature *a, Signature *b)
	Compare two Signature pointers via their underlying hash values.

Detailed Description

A feature rooted in a basic block.

There are two forms of a block feature. Form 1 contains only local control-flow information about the basic block. Form 2 is a feature that combines two operations that occur in sequence within the block. This form incorporates info about the operations and data-flow info about their inputs.

Member Function Documentation

encode()

void ghidra::BlockSignature::encode ( Encoder &  encoder ) const

virtual

The hash value is encoded to the stream, along with any descriptive information about how the feature was formed.

Parameters

encoder

is the stream encoder

Reimplemented from ghidra::Signature.

References bl, ghidra::Encoder::closeElement(), ghidra::Address::encode(), ghidra::PcodeOp::encode(), ghidra::Signature::getHash(), ghidra::FlowBlock::getIndex(), ghidra::BlockBasic::getStart(), op1, op2, ghidra::Encoder::openElement(), ghidra::Encoder::writeSignedInteger(), and ghidra::Encoder::writeUnsignedInteger().

printOrigin()

virtual void ghidra::BlockSignature::printOrigin ( ostream &  s ) const

inlinevirtual

Restore this feature from the given stream.

Print a brief description of this feature to the given stream

Reimplemented from ghidra::Signature.

References bl, and ghidra::BlockBasic::printHeader().

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

• signature.hh
• signature.cc