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

Class DWARFExpression

java.lang.Object

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

public class DWARFExpression
extends 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.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	MAX_SANE_EXPR

Method Summary

Modifier and Type	Method	Description
static 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.dwarf.expression.DWARFExpressionOperation	getOp(int i)
int	getOpCount()
static DWARFExpression	read(byte[] exprBytes, byte addrSize, boolean isLittleEndian, int intSize)
static DWARFExpression	read(BinaryReader reader, byte addrSize, int intSize)
String	toString()
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

Field Details

MAX_SANE_EXPR

public static final int MAX_SANE_EXPR

See Also:

• Constant Field Values

Method Details

exprToString

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

read

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

Throws:

DWARFExpressionException

read

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

Throws:

DWARFExpressionException

getOp

public ghidra.app.util.bin.format.dwarf.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 String toString()

Overrides:

toString in class Object

toString

public String toString(int caretPosition,
 boolean newlines,
 boolean offsets)