com.cmpware.elf
Class SectionHeader

java.lang.Object
  com.cmpware.elf.SectionHeader

public class SectionHeader
extends java.lang.Object

This describes the ELF Section Header.

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

Author:

SAG

Field Summary

static java.lang.String	copyright Copyright string
byte[]	data The section data
java.lang.String	name The section name
long	sh_addr The section address
int	sh_addralign The section alignment constraint
int	sh_entsize The section table entry size (optional)
long	sh_flags The section flags
int	sh_info The Section info
int	sh_link The section header table index link
int	sh_name The Section name index
long	sh_offset The section offset in the Elf file (in bytes)
long	sh_size The section size (in bytes)
int	sh_type The section type
static int	SHF_ALLOC Section occupies memory during execution attribute
static int	SHF_EXECINSTR Section contains executable machine instructions
static int	SHF_MASKPROC Reserved bits for processor-specific semantics
static int	SHF_WRITE Writable section attribute
static int	SHT_DYNAMIC Dynamic linking section
static int	SHT_DYNSYM A symbol table section
static int	SHT_HASH A symbol hash table section
static int	SHT_HIPROC High value for processor-specific semantics section
static int	SHT_HIUSER High value for application-specific semantics section
static int	SHT_LOPROC Low value for processor-specific semantics section
static int	SHT_LOUSER Low value for application-specific semantics section
static int	SHT_NOBITS Similar section to SHT_PROGBITS, but occupies no space in the file (often a BSS)
static int	SHT_NOTE An information section
static int	SHT_NULL Null (inactive) section
static int	SHT_PROGBITS Program defined section (code)
static int	SHT_REL A relocation section for entries without an explicit addend
static int	SHT_RELA A relocation section for entries with an explicit addend
static int	SHT_SHLIB A reserved section
static int	SHT_STRTAB A string table section
static int	SHT_SYMTAB A symbol table section

Constructor Summary

SectionHeader()

Method Summary

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

SHT_NULL

public static final int SHT_NULL

Null (inactive) section

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Constant Field Values

SHT_PROGBITS

public static final int SHT_PROGBITS

Program defined section (code)

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Constant Field Values

SHT_SYMTAB

public static final int SHT_SYMTAB

A symbol table section

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Constant Field Values

SHT_STRTAB

public static final int SHT_STRTAB

A string table section

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Constant Field Values

SHT_RELA

public static final int SHT_RELA

A relocation section for entries with an explicit addend

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Constant Field Values

SHT_HASH

public static final int SHT_HASH

A symbol hash table section

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Constant Field Values

SHT_DYNAMIC

public static final int SHT_DYNAMIC

Dynamic linking section

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Constant Field Values

SHT_NOTE

public static final int SHT_NOTE

An information section

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Constant Field Values

SHT_NOBITS

public static final int SHT_NOBITS

Similar section to SHT_PROGBITS, but occupies no space in the file (often a BSS)

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Constant Field Values

SHT_REL

public static final int SHT_REL

A relocation section for entries without an explicit addend

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Constant Field Values

SHT_SHLIB

public static final int SHT_SHLIB

A reserved section

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Constant Field Values

SHT_DYNSYM

public static final int SHT_DYNSYM

A symbol table section

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Constant Field Values

SHT_LOPROC

public static final int SHT_LOPROC

Low value for processor-specific semantics section

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Constant Field Values

SHT_HIPROC

public static final int SHT_HIPROC

High value for processor-specific semantics section

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Constant Field Values

SHT_LOUSER

public static final int SHT_LOUSER

Low value for application-specific semantics section

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Constant Field Values

SHT_HIUSER

public static final int SHT_HIUSER

High value for application-specific semantics section

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Constant Field Values

SHF_WRITE

public static final int SHF_WRITE

Writable section attribute

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Constant Field Values

SHF_ALLOC

public static final int SHF_ALLOC

Section occupies memory during execution attribute

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Constant Field Values

SHF_EXECINSTR

public static final int SHF_EXECINSTR

Section contains executable machine instructions

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Constant Field Values

SHF_MASKPROC

public static final int SHF_MASKPROC

Reserved bits for processor-specific semantics

See Also:

Constant Field Values

name

public java.lang.String name

The section name

sh_name

public int sh_name

The Section name index

sh_type

public int sh_type

The section type

sh_flags

public long sh_flags

The section flags

sh_addr

public long sh_addr

The section address

sh_offset

public long sh_offset

The section offset in the Elf file (in bytes)

sh_size

public long sh_size

The section size (in bytes)

sh_link

public int sh_link

The section header table index link

sh_info

public int sh_info

The Section info

sh_addralign

public int sh_addralign

The section alignment constraint

sh_entsize

public int sh_entsize

The section table entry size (optional)

data

public byte[] data

The section data

Constructor Detail

SectionHeader

public SectionHeader()

Method Detail

read

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

This method fills in the ELF Section 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 Section 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 section header.

Overrides:

toString in class java.lang.Object

Returns:

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