com.cmpware.elf
Class ElfHeader

java.lang.Object
  com.cmpware.elf.ElfHeader

public class ElfHeader
extends java.lang.Object

This describes the ELF Header.

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

Author:

SAG

Field Summary

static java.lang.String	copyright Copyright string
int	e_ehsize The ELF header size (in bytes)
long	e_entry The entry point (virtual address)
int	e_flags Processor-specific flags
int	e_machine The machine type
int	e_phentsize Program header table entry size
int	e_phnum The number of Program header table entries
long	e_phoff Program Header Table's offset (bytes)
int	e_shentsize Section Header Entry size (bytes)
int	e_shnum The number of Section headers
long	e_shoff Section header table offset (bytes)
int	e_shstrndx The string table index (in section header table)
int	e_type The object file type
int	e_version The file object version
static int	EI_CLASS File class (e_ident[])
static int	EI_DATA Data encoding (e_ident[])
static int	EI_MAG0 File identification (e_ident[])
static int	EI_MAG1 File identification (e_ident[])
static int	EI_MAG2 File identification (e_ident[])
static int	EI_MAG3 File identification (e_ident[])
static int	EI_NIDENT The length of the identification string
static int	EI_PAD Start of padding bytes (e_ident[])
static int	EI_VERSION File version (e_ident[])
static int	ELFCLASS32 32-bit objects (e_ident[EI_CLASS])
static int	ELFCLASS64 64-bit objects (e_ident[EI_CLASS])
static int	ELFCLASSNONE Invalid class (e_ident[EI_CLASS])
static int	ELFDATA2LSB "Little endian" encoding (e_ident[EI_DATA])
static int	ELFDATA2MSB "Big endian" encoding (e_ident[EI_DATA])
static int	ELFDATANONE Invalid data encoding (e_ident[EI_DATA])
static int	EM_386 Intel 80386
static int	EM_68K Motorola 68000
static int	EM_860 Intel 80860
static int	EM_88K Motorola 88000
static int	EM_M32 AT&T WE32100
static int	EM_MIPS MIPS RS3000
static int	EM_NONE No machine
static int	EM_SPARC SPARC
static int	ET_CORE Core file
static int	ET_DYN Shared object file
static int	ET_EXEC Executable file
static int	ET_NONE No file type
static int	ET_REL Relocatable file
static int	EV_CURRENT Current version
static int	EV_NONE Invalid version
int	fileClass The file class
int	fileEncoding The data encoding
int	fileIdent The identification bytes '0x7f', 'E', 'L', 'F'
int	fileVersion The file version

Constructor Summary

ElfHeader()

Method Summary

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

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Constant Field Values

EI_NIDENT

public static final int EI_NIDENT

The length of the identification string

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Constant Field Values

EI_MAG0

public static final int EI_MAG0

File identification (e_ident[])

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Constant Field Values

EI_MAG1

public static final int EI_MAG1

File identification (e_ident[])

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Constant Field Values

EI_MAG2

public static final int EI_MAG2

File identification (e_ident[])

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Constant Field Values

EI_MAG3

public static final int EI_MAG3

File identification (e_ident[])

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Constant Field Values

EI_CLASS

public static final int EI_CLASS

File class (e_ident[])

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Constant Field Values

EI_DATA

public static final int EI_DATA

Data encoding (e_ident[])

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Constant Field Values

EI_VERSION

public static final int EI_VERSION

File version (e_ident[])

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Constant Field Values

EI_PAD

public static final int EI_PAD

Start of padding bytes (e_ident[])

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Constant Field Values

ET_NONE

public static final int ET_NONE

No file type

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Constant Field Values

ET_REL

public static final int ET_REL

Relocatable file

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Constant Field Values

ET_EXEC

public static final int ET_EXEC

Executable file

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Constant Field Values

ET_DYN

public static final int ET_DYN

Shared object file

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Constant Field Values

ET_CORE

public static final int ET_CORE

Core file

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Constant Field Values

EV_NONE

public static final int EV_NONE

Invalid version

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Constant Field Values

EV_CURRENT

public static final int EV_CURRENT

Current version

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Constant Field Values

EM_NONE

public static final int EM_NONE

No machine

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Constant Field Values

EM_M32

public static final int EM_M32

AT&T WE32100

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Constant Field Values

EM_SPARC

public static final int EM_SPARC

SPARC

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Constant Field Values

EM_386

public static final int EM_386

Intel 80386

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Constant Field Values

EM_68K

public static final int EM_68K

Motorola 68000

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Constant Field Values

EM_88K

public static final int EM_88K

Motorola 88000

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Constant Field Values

EM_860

public static final int EM_860

Intel 80860

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Constant Field Values

EM_MIPS

public static final int EM_MIPS

MIPS RS3000

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Constant Field Values

ELFCLASSNONE

public static final int ELFCLASSNONE

Invalid class (e_ident[EI_CLASS])

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Constant Field Values

ELFCLASS32

public static final int ELFCLASS32

32-bit objects (e_ident[EI_CLASS])

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Constant Field Values

ELFCLASS64

public static final int ELFCLASS64

64-bit objects (e_ident[EI_CLASS])

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Constant Field Values

ELFDATANONE

public static final int ELFDATANONE

Invalid data encoding (e_ident[EI_DATA])

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Constant Field Values

ELFDATA2LSB

public static final int ELFDATA2LSB

"Little endian" encoding (e_ident[EI_DATA])

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Constant Field Values

ELFDATA2MSB

public static final int ELFDATA2MSB

"Big endian" encoding (e_ident[EI_DATA])

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Constant Field Values

fileIdent

public int fileIdent

The identification bytes '0x7f', 'E', 'L', 'F'

fileClass

public int fileClass

The file class

fileEncoding

public int fileEncoding

The data encoding

fileVersion

public int fileVersion

The file version

e_type

public int e_type

The object file type

e_machine

public int e_machine

The machine type

e_version

public int e_version

The file object version

e_entry

public long e_entry

The entry point (virtual address)

e_phoff

public long e_phoff

Program Header Table's offset (bytes)

e_shoff

public long e_shoff

Section header table offset (bytes)

e_flags

public int e_flags

Processor-specific flags

e_ehsize

public int e_ehsize

The ELF header size (in bytes)

e_phentsize

public int e_phentsize

Program header table entry size

e_phnum

public int e_phnum

The number of Program header table entries

e_shentsize

public int e_shentsize

Section Header Entry size (bytes)

e_shnum

public int e_shnum

The number of Section headers

e_shstrndx

public int e_shstrndx

The string table index (in section header table)

Constructor Detail

ElfHeader

public ElfHeader()

Method Detail

read

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

This method fills in the ELF 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 Header fields.

Parameters:

eos - The ElfOutputStream for the ELF file.

Throws:

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

toString

public java.lang.String toString()

This method returns a string representation of the ELF header.

Overrides:

toString in class java.lang.Object

Returns:

This method returns a string representation of the ELF header.