Package ghidra.app.util.bin.format.dwarf4.expression

Class DWARFExpression

java.lang.Object

ghidra.app.util.bin.format.dwarf4.expression.DWARFExpression

public class DWARFExpression
extends java.lang.Object

A DWARFExpression is an immutable list of operations and some factory methods to read an expression from its binary representation.

Use a DWARFExpressionEvaluator to execute a DWARFExpression.

Method Summary

Modifier and Type	Method	Description
static java.lang.String	exprToString(byte[] exprBytes, DIEAggregate diea)
int	findOpByOffset(long offset)	Finds the index of an operation by its offset from the beginning of the expression.
int	getLastActiveOpIndex()	Returns the index of the last operation that is not a NOP.
ghidra.app.util.bin.format.dwarf4.expression.DWARFExpressionOperation	getOp(int i)
int	getOpCount()
static DWARFExpression	read(byte[] exprBytes, byte addrSize, boolean isLittleEndian, int dwarf_format)
static DWARFExpression	read(BinaryReader reader, byte addrSize, int dwarf_format)
java.lang.String	toString()
java.lang.String	toString(int caretPosition, boolean newlines, boolean offsets)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

exprToString

public static java.lang.String exprToString(byte[] exprBytes,
                                            DIEAggregate diea)

read

public static DWARFExpression read(byte[] exprBytes,
                                   byte addrSize,
                                   boolean isLittleEndian,
                                   int dwarf_format)
                            throws DWARFExpressionException

Throws:

DWARFExpressionException

read

public static DWARFExpression read(BinaryReader reader,
                                   byte addrSize,
                                   int dwarf_format)
                            throws DWARFExpressionException

Throws:

DWARFExpressionException

getOp

public ghidra.app.util.bin.format.dwarf4.expression.DWARFExpressionOperation getOp(int i)

getOpCount

public int getOpCount()

getLastActiveOpIndex

public int getLastActiveOpIndex()

Returns the index of the last operation that is not a NOP.

Returns:

findOpByOffset

public int findOpByOffset(long offset)

Finds the index of an operation by its offset from the beginning of the expression.

Parameters:

offset -

Returns:

-1 if there is no op at the specified offset

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

toString

public java.lang.String toString(int caretPosition,
                                 boolean newlines,
                                 boolean offsets)