Package ghidra.app.util.bin.format.pef

Class Relocation

java.lang.Object

ghidra.app.util.bin.format.pef.Relocation

All Implemented Interfaces:

StructConverter

Direct Known Subclasses:

RelocByIndexGroup, RelocBySectDWithSkip, RelocIncrPosition, RelocLgByImport, RelocLgRepeat, RelocLgSetOrBySection, RelocSetPosition, RelocSmRepeat, RelocUndefinedOpcode, RelocValueGroup

public abstract class Relocation
extends Object
implements StructConverter

The high-order 7 bits for the currently defined relocation opcode values. Binary values indicated by "x" are "don't care" operands. For example, any combination of the high-order 7 bits that starts with two zero bits (00) indicates the RelocBySectDWithSkip instruction. Relocation instructions are stored in 2-byte relocation blocks. Most instructions take up one block that combines an opcode and related arguments. Instructions that are larger than 2 bytes have an opcode and some of the operands in the first 2-byte block, with other operands in the following 2-byte blocks. The opcode occupies the upper (higher-order) bits of the block that contains it. Relocation instructions can be decoded from the high-order 7 bits of their first block. All currently defined relocation instructions relocate locations as words (that is, 4-byte values).

Field Summary

Fields

Modifier and Type	Field	Description
protected int	opcode

Fields inherited from interface ghidra.app.util.bin.StructConverter

ASCII, BYTE, DWORD, IBO32, IBO64, POINTER, QWORD, SLEB128, STRING, ULEB128, UTF16, UTF8, VOID, WORD

Constructor Summary

Constructors

Constructor	Description
Relocation()

Method Summary

Modifier and Type	Method	Description
abstract void	apply(ImportStateCache importState, RelocationState relocState, ContainerHeader header, Program program, MessageLog log, TaskMonitor monitor)
int	getOpcode()
int	getRepeatChunks()
int	getRepeatCount()
int	getSizeInBytes()
abstract boolean	isMatch()
DataType	toDataType()	Returns a structure datatype representing the contents of the implementor of this interface.
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

opcode

protected int opcode

Constructor Details

Relocation

public Relocation()

Method Details

isMatch

public abstract boolean isMatch()

apply

public abstract void apply(ImportStateCache importState,
 RelocationState relocState,
 ContainerHeader header,
 Program program,
 MessageLog log,
 TaskMonitor monitor)

getOpcode

public int getOpcode()

getSizeInBytes

public int getSizeInBytes()

getRepeatCount

public int getRepeatCount()

getRepeatChunks

public int getRepeatChunks()

toDataType

public DataType toDataType()
                    throws DuplicateNameException,
IOException

Description copied from interface: StructConverter

Returns a structure datatype representing the contents of the implementor of this interface.

For example, given:

 class A {
     int foo;
     double bar;
 }
 

The return value should be a structure data type with two data type components; an INT and a DOUBLE. The structure should contain field names and, if possible, field comments.

Specified by:

toDataType in interface StructConverter

Returns:

returns a structure datatype representing the implementor of this interface

Throws:

DuplicateNameException - when a datatype of the same name already exists

IOException - if an IO-related error occurs

See Also:

• StructureDataType

toString

public String toString()

Overrides:

toString in class Object