ldrELF64.h revision 101c8a4ba92c1c8640481d4e439b0297c95c287c
/* $Id$ */
/** @file
* IPRT - ELF 64-bit header.
*/
/*
* Copyright (C) 2010 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*/
#ifndef ___internal_ldrELF64_h
#define ___internal_ldrELF64_h
#include <iprt/assert.h> /* Added by Ramshankar */
#include "ldrELFCommon.h"
/*
* ELF 64 standard types.
*/
typedef uint64_t Elf64_Addr;
typedef uint64_t Elf64_Off;
typedef uint16_t Elf64_Half;
typedef uint32_t Elf64_Word;
typedef int32_t Elf64_Sword;
typedef uint64_t Elf64_Xword;
typedef int64_t Elf64_Sxword;
/*
* Ensure type size correctness in accordance to ELF-64 Object File Format, Version 1.5 Draft 2, p2.
*/
AssertCompileSize(Elf64_Addr, 8);
AssertCompileSize(Elf64_Off, 8);
AssertCompileSize(Elf64_Half, 2);
AssertCompileSize(Elf64_Word, 4);
AssertCompileSize(Elf64_Sword, 4);
AssertCompileSize(Elf64_Xword, 8);
AssertCompileSize(Elf64_Sxword, 8);
/*
* ELF 64 non-standard types for convenience.
*/
typedef Elf64_Xword Elf64_Size;
typedef Elf64_Word Elf64_Hashelt;
/*
* ELF Header.
*/
typedef struct
{
unsigned char e_ident[16]; /* ELF identification. */
Elf64_Half e_type; /* Object file type. */
Elf64_Half e_machine; /* Machine type. */
Elf64_Word e_version; /* Object file version. */
Elf64_Addr e_entry; /* Entry point address. */
Elf64_Off e_phoff; /* Program header offset. */
Elf64_Off e_shoff; /* Section header offset. */
Elf64_Word e_flags; /* Processor-specific flags. */
Elf64_Half e_ehsize; /* ELF header size. */
Elf64_Half e_phentsize; /* Size of program header entry. */
Elf64_Half e_phnum; /* Number of program header entries. */
Elf64_Half e_shentsize; /* Size of section header entry. */
Elf64_Half e_shnum; /* Number of section header entries. */
Elf64_Half e_shstrndx; /* Section name string table index. */
} Elf64_Ehdr;
/*
* Section header.
*/
typedef struct
{
Elf64_Word sh_name; /* Section name. */
Elf64_Word sh_type; /* Section type. */
Elf64_Xword sh_flags; /* Section attributes. */
Elf64_Addr sh_addr; /* Virtual address in memory. */
Elf64_Off sh_offset; /* Offset in file. */
Elf64_Xword sh_size; /* Size of section. */
Elf64_Word sh_link; /* Link to other section. */
Elf64_Word sh_info; /* Miscellaneous information. */
Elf64_Xword sh_addralign; /* Address alignment boundary. */
Elf64_Xword sh_entsize; /* Size of entries, if section has table. */
} Elf64_Shdr;
/*
* Program header.
*/
typedef struct
{
Elf64_Word p_type; /* Type of segment. */
Elf64_Word p_flags; /* Segment attributes. */
Elf64_Off p_offset; /* Offset in file. */
Elf64_Addr p_vaddr; /* Virtual address in memory. */
Elf64_Addr p_paddr; /* Physical address (reserved). */
Elf64_Xword p_filesz; /* Size of segment in file. */
Elf64_Xword p_memsz; /* Size of segment in memory. */
Elf64_Xword p_align; /* Alignment of segment. */
} Elf64_Phdr;
/*
* Note header.
*/
typedef struct
{
Elf64_Word n_namesz; /* Length of note's name. */
Elf64_Word n_descsz; /* Length of note's description. */
Elf64_Word n_type; /* Type of note. */
} Elf64_Nhdr;
/*
* Symbol table entry.
*/
typedef struct
{
Elf64_Word st_name; /* Symbol name. */
unsigned char st_info; /* Type and binding attributes. */
unsigned char st_other; /* Reserved. */
Elf64_Half st_shndx; /* Section header table index. */
Elf64_Addr st_value; /* Symbol value. */
Elf64_Xword st_size; /* Size associated with symbol. */
} Elf64_Sym;
/*
* Relocations.
*/
typedef struct
{
Elf64_Addr r_offset; /* Location to be relocated. */
Elf64_Xword r_info; /* Symbol index and type of relocation. */
} Elf64_Rel;
typedef struct
{
Elf64_Addr r_offset; /* Location to be relocated. */
Elf64_Xword r_info; /* Symbol index and type of relocation. */
Elf64_Sxword r_addend; /* Constant part of expression. */
} Elf64_Rela;
/*
* Dynamic section entry.
* ".dynamic" section contains an array of this.
*/
typedef struct
{
Elf64_Sxword d_tag; /* Type of entry. */
union
{
Elf64_Xword d_val; /* Integer value. */
Elf64_Addr d_ptr; /* Virtual address value. */
} d_un;
} Elf64_Dyn;
/*
* Helper macros.
*/
/** The symbol's type. */
#define ELF64_ST_TYPE(info) ((info) & 0xF)
/** The symbol's binding. */
#define ELF64_ST_BIND(info) ((info) >> 4)
/** Make st_info. given binding and type. */
#define ELF64_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf))
/** Relocation type. */
#define ELF64_R_TYPE(info) ((unsigned char)(info))
/** Relocation symbol index. */
#define ELF64_R_SYM(info) ((info) >> 32)
/** Make r_info given the symbol index and type. */
#define ELF64_R_INFO(sym, type) (((sym) << 32) + (unsigned char)(type))
#endif /* ___internal_ldrELF64_h */