Package ghidra.app.plugin.exceptionhandlers.gcc

Class GccAnalysisUtils

java.lang.Object

ghidra.app.plugin.exceptionhandlers.gcc.GccAnalysisUtils

public class GccAnalysisUtils
extends Object

Utility methods for use by the gcc exception handling analysis.

Constructor Summary

Constructors

Constructor	Description
GccAnalysisUtils()

Method Summary

Modifier and Type	Method	Description
static byte	readByte(Program program, Address addr)	Reads a byte from the program's memory at the indicated address.
static void	readBytes(Program program, Address addr, byte[] buffer)	Reads buffer.length number of bytes from the program's memory starting at the indicated address.
static long	readDWord(Program program, Address addr)	Reads a double word from the program's memory starting at the indicated address.
static long	readQWord(Program program, Address addr)	Reads a quad word from the program's memory starting at the indicated address.
static LEB128Info	readSLEB128Info(Program program, Address addr)	Reads an signed little endian base 128 integer from memory.
static LEB128Info	readULEB128Info(Program program, Address addr)	Reads an unsigned little endian base 128 integer from memory.
static int	readWord(Program program, Address addr)	Reads a word from the program's memory starting at the indicated address.

Methods inherited from class java.lang.Object

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

Constructor Details

GccAnalysisUtils

public GccAnalysisUtils()

Method Details

readByte

public static byte readByte(Program program,
 Address addr)
                     throws MemoryAccessException

Reads a byte from the program's memory at the indicated address.

Parameters:

program - the program containing the byte to read

addr - the address to start reading

Returns:

the byte

Throws:

MemoryAccessException - if the byte can't be read.

readWord

public static int readWord(Program program,
 Address addr)
                    throws MemoryAccessException

Reads a word from the program's memory starting at the indicated address.

Parameters:

program - the program containing the bytes to read

addr - the address to start reading

Returns:

the word

Throws:

MemoryAccessException - if 2 bytes can't be read.

readDWord

public static long readDWord(Program program,
 Address addr)
                      throws MemoryAccessException

Reads a double word from the program's memory starting at the indicated address.

Parameters:

program - the program containing the bytes to read

addr - the address to start reading

Returns:

the double word

Throws:

MemoryAccessException - if 4 bytes can't be read.

readQWord

public static long readQWord(Program program,
 Address addr)
                      throws MemoryAccessException

Reads a quad word from the program's memory starting at the indicated address.

Parameters:

program - the program containing the bytes to read

addr - the address to start reading

Returns:

the quad word

Throws:

MemoryAccessException - if 8 bytes can't be read.

readBytes

public static void readBytes(Program program,
 Address addr,
 byte[] buffer)
                      throws MemoryAccessException

Reads buffer.length number of bytes from the program's memory starting at the indicated address.

Parameters:

program - the program containing the bytes to read

addr - the address to start reading

buffer - the array to save the bytes that were read.

Throws:

MemoryAccessException - if the expected number of bytes can't be read.

readULEB128Info

public static LEB128Info readULEB128Info(Program program,
 Address addr)
                                  throws MemoryAccessException

Reads an unsigned little endian base 128 integer from memory.

Parameters:

program - the program with memory to be read.

addr - the address in memory to begin reading the unsigned LEB128.

Returns:

LEB128Info (value + metadata)

Throws:

MemoryAccessException

readSLEB128Info

public static LEB128Info readSLEB128Info(Program program,
 Address addr)
                                  throws MemoryAccessException

Reads an signed little endian base 128 integer from memory.

Parameters:

program - the program with memory to be read.

addr - the address in memory to begin reading the signed LEB128.

Returns:

LEB128Info (value + metadata)

Throws:

MemoryAccessException