com.cmpware.elf
Class ProgramHeader

java.lang.Object
  com.cmpware.elf.ProgramHeader

public class ProgramHeader
extends java.lang.Object

This describes the ELF Program Header.

Copyright (c) 2004 Cmpware, Inc. All Rights Reserved.

Author:

SAG

Field Summary

static java.lang.String	copyright Copyright string
byte[]	data The program / segment data
long	p_align The data alignment in memory and in the file
long	p_filesz The file size of the image (in bytes)
long	p_flags The segment flags
long	p_memsz The memory size of the image (in bytes)
long	p_offset The program file offset (bytes)
long	p_paddr The physical address of the segment
long	p_type The program type
long	p_vaddr The virtual address of the segment
static int	PF_R Readable segment
static int	PF_W Writable segment
static int	PF_X Executable segment
static int	PT_DYNAMIC Dynamic linking information
static int	PT_HIPROC High value for processor-specific semantics segment
static int	PT_INTERP Pathg to program interpreter
static int	PT_LOAD A loadable segment (code)
static int	PT_LOPROC Low value for processor-specific semantics segment
static int	PT_NOTE Auxiliary information
static int	PT_NULL Null (inactive) segment
static int	PT_PHDR Program header table
static int	PT_SHLIB Reserved segment type

Constructor Summary

ProgramHeader()

Method Summary

void	read(ElfInputStream eis) This method fills in the ELF Program Header fields.
java.lang.String	toString() This method returns a string representation of the ELF program header.
void	write(ElfOutputStream eos) This method writes out the ELF Program Header fields.

Methods inherited from class java.lang.Object

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

Field Detail

copyright

public static final java.lang.String copyright

Copyright string

See Also:

Constant Field Values

PT_NULL

public static final int PT_NULL

Null (inactive) segment

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Constant Field Values

PT_LOAD

public static final int PT_LOAD

A loadable segment (code)

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Constant Field Values

PT_DYNAMIC

public static final int PT_DYNAMIC

Dynamic linking information

See Also:

Constant Field Values

PT_INTERP

public static final int PT_INTERP

Pathg to program interpreter

See Also:

Constant Field Values

PT_NOTE

public static final int PT_NOTE

Auxiliary information

See Also:

Constant Field Values

PT_SHLIB

public static final int PT_SHLIB

Reserved segment type

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Constant Field Values

PT_PHDR

public static final int PT_PHDR

Program header table

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Constant Field Values

PT_LOPROC

public static final int PT_LOPROC

Low value for processor-specific semantics segment

See Also:

Constant Field Values

PT_HIPROC

public static final int PT_HIPROC

High value for processor-specific semantics segment

See Also:

Constant Field Values

PF_X

public static final int PF_X

Executable segment

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Constant Field Values

PF_W

public static final int PF_W

Writable segment

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Constant Field Values

PF_R

public static final int PF_R

Readable segment

See Also:

Constant Field Values

p_type

public long p_type

The program type

p_offset

public long p_offset

The program file offset (bytes)

p_vaddr

public long p_vaddr

The virtual address of the segment

p_paddr

public long p_paddr

The physical address of the segment

p_filesz

public long p_filesz

The file size of the image (in bytes)

p_memsz

public long p_memsz

The memory size of the image (in bytes)

p_flags

public long p_flags

The segment flags

p_align

public long p_align

The data alignment in memory and in the file

data

public byte[] data

The program / segment data

Constructor Detail

ProgramHeader

public ProgramHeader()

Method Detail

read

public void read(ElfInputStream eis)
          throws java.io.IOException

This method fills in the ELF Program Header fields.

Parameters:

eis - The ElfInputStream for the ELF file.

Throws:

java.io.IOException - if an error is encountered in reading the Data Input Stream.

write

public void write(ElfOutputStream eos)
           throws java.io.IOException

This method writes out the ELF Program Header fields.

Parameters:

eos - The ElfOutputStream for the ELF file.

Throws:

java.io.IOException - if an error is encountered in writing the Elf Output Stream.

toString

public java.lang.String toString()

This method returns a string representation of the ELF program header.

Overrides:

toString in class java.lang.Object

Returns:

This method returns a string representation of the ELF program header.