ghidra::BitFieldPullTransform::PullRecord Class Reference

Info about a single read by a PcodeOp that can be treated as a pull of 1 or more bitfields. More...

Public Member Functions
	PullRecord (const BitFieldNodeState &state, PcodeOp *op)
	Construct pull record for a specific PcodeOp read.
	PullRecord (const BitFieldNodeState &state, PcodeOp *op, uintb val)
	Construct record for a pull into an INT_EQUAL or INT_NOTEQUAL.
	PullRecord (PcodeOp *op)
	Construct record representing an abort.
bool	operator< (const PullRecord &op2) const
	Compare records.

Private Types
enum	{ normal = 0 , equal = 1 , aborted = 2 }

Private Attributes
Varnode *	readVn
	Varnode holding pulled value.
PcodeOp *	readOp
	Op reading the pulled value, or null if readVn itself is redefined.
Datatype *	dt
	Data-type associated with the pulled value.
int4	type
	Type of pull.
int4	pos
	Bit position of field being pulled.
int4	numBits
	Number of bits in field being pulled.
int4	leftShift
	Amount final field is left shifted.
uintb	mask
	Mask representing the bitfield within the Varnode.

Friends
class	BitFieldPullTransform

Detailed Description

Info about a single read by a PcodeOp that can be treated as a pull of 1 or more bitfields.

Member Enumeration Documentation

anonymous enum

anonymous enum

private

Enumerator
normal	A single field pull.
equal	Pull for INT_EQUAL or INT_NOTEQUAL.
aborted	Code to indicate that the pull for the entire PcodeOp should be aborted.

Constructor & Destructor Documentation

PullRecord() [1/3]

ghidra::BitFieldPullTransform::PullRecord::PullRecord	(	const BitFieldNodeState &	state,
		PcodeOp *	op
	)

Construct pull record for a specific PcodeOp read.

If a PcodeOp is given, the specific read of the state.readVn will be replaced with a new unique Varnode holding the effective extraction. Otherwise the state.readVn will be redefined as an extraction for all reads.

Parameters

state	holds the extracted Varnode and the position of the bitfield at the point of extraction
op	is the specific PcodeOp reading the extracted field or null

References ghidra::TypeBitField::bits, ghidra::BitFieldNodeState::bitsField, dt, ghidra::BitFieldNodeState::field, ghidra::BitRange::leastSigBit, leftShift, mask, ghidra::BitFieldNodeState::node, normal, ghidra::BitRange::numBits, numBits, ghidra::BitFieldNodeState::origLeastSigBit, pos, readOp, readVn, type, and ghidra::TypeBitField::type.

PullRecord() [2/3]

ghidra::BitFieldPullTransform::PullRecord::PullRecord	(	const BitFieldNodeState &	state,
		PcodeOp *	op,
		uintb	val
	)

Construct record for a pull into an INT_EQUAL or INT_NOTEQUAL.

Parameters

state	holds the extracted Varnode and the position of the bitfield at the point of extraction
op	is the specific INT_EQUAL or INT_NOTEQUAL PcodeOp reading the extracted field
val	is a mask representing the bitfield within the Varnode

References ghidra::TypeBitField::bits, ghidra::BitFieldNodeState::bitsField, ghidra::BitFieldNodeState::field, ghidra::BitRange::leastSigBit, ghidra::BitFieldNodeState::node, ghidra::BitRange::numBits, ghidra::BitFieldNodeState::origLeastSigBit, and ghidra::TypeBitField::type.

PullRecord() [3/3]

ghidra::BitFieldPullTransform::PullRecord::PullRecord

(

PcodeOp *

op

)

Construct record representing an abort.

Parameters

op	is the PcodeOp whose input pull is being aborted

Member Function Documentation

operator<()

bool ghidra::BitFieldPullTransform::PullRecord::operator<

(

const PullRecord &

op2

)

const

Compare records.

Sort based on the PcodeOp whose input is being pulled

Parameters

op2	is the record to compare with this

Returns

true if this comes before op2

References ghidra::PcodeOp::getSeqNum(), and readOp.

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

• bitfield.hh
• bitfield.cc