elf.h

F:worksip2440a board可启动u-boot-like.tar.gz F:worksip2440a board可启动u-boot-like.tar.gz

/*
 * Copyright (c) 1995, 1996, 2001, 2002
 * Erik Theisen.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * This is the ELF ABI header file
 * formerly known as "elf_abi.h".
 */

#ifndef _ELF_H
#define _ELF_H

#if defined(__BEOS__)	 || \
    defined(__NetBSD__)  || \
    defined(__FreeBSD__) || \
    defined(__sun__)	 || \
    defined(__APPLE__)
#include <inttypes.h>
#elif defined(__linux__) && defined(USE_HOSTCC)
#include <stdint.h>
#elif defined(__WIN32__)
#include <unistd.h>
typedef 	 unsigned char	 uint8_t;
typedef 	 unsigned short  uint16_t;
typedef 	 unsigned int	 uint32_t;
#endif

/*
 *  This version doesn't work for 64-bit ABIs - Erik.
 */

/*
 * These typedefs need to be handled better.
 */
typedef uint32_t	Elf32_Addr;	/* Unsigned program address */
typedef uint32_t	Elf32_Off;	/* Unsigned file offset */
typedef int32_t		Elf32_Sword;	/* Signed large integer */
typedef uint32_t	Elf32_Word;	/* Unsigned large integer */
typedef uint16_t	Elf32_Half;	/* Unsigned medium integer */

/* e_ident[] identification indexes */
#define EI_MAG0		0		/* file ID */
#define EI_MAG1		1		/* file ID */
#define EI_MAG2		2		/* file ID */
#define EI_MAG3		3		/* file ID */
#define EI_CLASS	4		/* file class */
#define EI_DATA		5		/* data encoding */
#define EI_VERSION	6		/* ELF header version */
#define EI_OSABI	7		/* OS/ABI specific ELF extensions */
#define EI_ABIVERSION	8		/* ABI target version */
#define EI_PAD		9		/* start of pad bytes */
#define EI_NIDENT	16		/* Size of e_ident[] */

/* e_ident[] magic number */
#define	ELFMAG0		0x7f		/* e_ident[EI_MAG0] */
#define	ELFMAG1		'E'		/* e_ident[EI_MAG1] */
#define	ELFMAG2		'L'		/* e_ident[EI_MAG2] */
#define	ELFMAG3		'F'		/* e_ident[EI_MAG3] */
#define	ELFMAG		"\177ELF"	/* magic */
#define	SELFMAG		4		/* size of magic */

/* e_ident[] file class */
#define	ELFCLASSNONE	0		/* invalid */
#define	ELFCLASS32	1		/* 32-bit objs */
#define	ELFCLASS64	2		/* 64-bit objs */
#define	ELFCLASSNUM	3		/* number of classes */

/* e_ident[] data encoding */
#define ELFDATANONE	0		/* invalid */
#define ELFDATA2LSB	1		/* Little-Endian */
#define ELFDATA2MSB	2		/* Big-Endian */
#define ELFDATANUM	3		/* number of data encode defines */

/* e_ident[] OS/ABI specific ELF extensions */
#define ELFOSABI_NONE		0	/* No extension specified */
#define ELFOSABI_HPUX		1	/* Hewlett-Packard HP-UX */
#define ELFOSABI_NETBSD		2	/* NetBSD */
#define ELFOSABI_LINUX		3	/* Linux */
#define ELFOSABI_SOLARIS	6	/* Sun Solaris */
#define ELFOSABI_AIX		7	/* AIX */
#define ELFOSABI_IRIX		8	/* IRIX */
#define ELFOSABI_FREEBSD	9	/* FreeBSD */
#define ELFOSABI_TRU64		10	/* Compaq TRU64 UNIX */
#define ELFOSABI_MODESTO	11	/* Novell Modesto */
#define ELFOSABI_OPENBSD	12	/* OpenBSD */
/* 64-255 Architecture-specific value range */

/* e_ident[] ABI Version */
#define ELFABIVERSION		0

/* e_ident */
#define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
		      (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
		      (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \
		      (ehdr).e_ident[EI_MAG3] == ELFMAG3)

/* ELF Header */
typedef struct elfhdr{
	unsigned char	e_ident[EI_NIDENT]; /* ELF Identification */
	Elf32_Half	e_type;		/* object file type */
	Elf32_Half	e_machine;	/* machine */
	Elf32_Word	e_version;	/* object file version */
	Elf32_Addr	e_entry;	/* virtual entry point */
	Elf32_Off	e_phoff;	/* program header table offset */
	Elf32_Off	e_shoff;	/* section header table offset */
	Elf32_Word	e_flags;	/* processor-specific flags */
	Elf32_Half	e_ehsize;	/* ELF header size */
	Elf32_Half	e_phentsize;	/* program header entry size */
	Elf32_Half	e_phnum;	/* number of program header entries */
	Elf32_Half	e_shentsize;	/* section header entry size */
	Elf32_Half	e_shnum;	/* number of section header entries */
	Elf32_Half	e_shstrndx;	/* section header table's "section
					   header string table" entry offset */
} Elf32_Ehdr;

/* e_type */
#define ET_NONE		0		/* No file type */
#define ET_REL		1		/* relocatable file */
#define ET_EXEC		2		/* executable file */
#define ET_DYN		3		/* shared object file */
#define ET_CORE		4		/* core file */
#define ET_NUM		5		/* number of types */
#define ET_LOOS		0xfe00		/* reserved range for operating */
#define ET_HIOS		0xfeff		/*  system specific e_type */
#define ET_LOPROC	0xff00		/* reserved range for processor */
#define ET_HIPROC	0xffff		/*  specific e_type */

/* e_machine */
#define EM_NONE		0		/* No Machine */
#define EM_M32		1		/* AT&T WE 32100 */
#define EM_SPARC	2		/* SPARC */
#define EM_386		3		/* Intel 80386 */
#define EM_68K		4		/* Motorola 68000 */
#define EM_88K		5		/* Motorola 88000 */
#if 0
#define EM_486		6		/* RESERVED - was Intel 80486 */
#endif
#define EM_860		7		/* Intel 80860 */
#define EM_MIPS		8		/* MIPS R3000 Big-Endian only */
#define EM_S370		9		/* IBM System/370 Processor */
#define EM_MIPS_RS4_BE	10		/* MIPS R4000 Big-Endian */
#if 0
#define EM_SPARC64	11		/* RESERVED - was SPARC v9
					     64-bit unoffical */
#endif
/* RESERVED 11-14 for future use */
#define EM_PARISC	15		/* HPPA */
/* RESERVED 16 for future use */
#define EM_VPP500	17		/* Fujitsu VPP500 */
#define EM_SPARC32PLUS	18		/* Enhanced instruction set SPARC */
#define EM_960		19		/* Intel 80960 */
#define EM_PPC		20		/* PowerPC */
#define EM_PPC64	21		/* 64-bit PowerPC */
#define EM_S390		22		/* IBM System/390 Processor */
/* RESERVED 23-35 for future use */
#define EM_V800		36		/* NEC V800 */
#define EM_FR20		37		/* Fujitsu FR20 */
#define EM_RH32		38		/* TRW RH-32 */
#define EM_RCE		39		/* Motorola RCE */
#define EM_ARM		40		/* Advanced Risc Machines ARM */
#define EM_ALPHA	41		/* Digital Alpha */
#define EM_SH		42		/* Hitachi SH */
#define EM_SPARCV9	43		/* SPARC Version 9 */
#define EM_TRICORE	44		/* Siemens TriCore embedded processor */
#define EM_ARC		45		/* Argonaut RISC Core */
#define EM_H8_300	46		/* Hitachi H8/300 */
#define EM_H8_300H	47		/* Hitachi H8/300H */
#define EM_H8S		48		/* Hitachi H8S */
#define EM_H8_500	49		/* Hitachi H8/500 */
#define EM_IA_64	50		/* Intel Merced */
#define EM_MIPS_X	51		/* Stanford MIPS-X */
#define EM_COLDFIRE	52		/* Motorola Coldfire */
#define EM_68HC12	53		/* Motorola M68HC12 */
#define EM_MMA		54		/* Fujitsu MMA Multimedia Accelerator*/
#define EM_PCP		55		/* Siemens PCP */
#define EM_NCPU		56		/* Sony nCPU embeeded RISC */
#define EM_NDR1		57		/* Denso NDR1 microprocessor */
#define EM_STARCORE	58		/* Motorola Start*Core processor */
#define EM_ME16		59		/* Toyota ME16 processor */
#define EM_ST100	60		/* STMicroelectronic ST100 processor */
#define EM_TINYJ	61		/* Advanced Logic Corp. Tinyj emb.fam*/
#define EM_X86_64	62		/* AMD x86-64 */
#define EM_PDSP		63		/* Sony DSP Processor */
/* RESERVED 64,65 for future use */
#define EM_FX66		66		/* Siemens FX66 microcontroller */
#define EM_ST9PLUS	67		/* STMicroelectronics ST9+ 8/16 mc */
#define EM_ST7		68		/* STmicroelectronics ST7 8 bit mc */
#define EM_68HC16	69		/* Motorola MC68HC16 microcontroller */
#define EM_68HC11	70		/* Motorola MC68HC11 microcontroller */
#define EM_68HC08	71		/* Motorola MC68HC08 microcontroller */
#define EM_68HC05	72		/* Motorola MC68HC05 microcontroller */
#define EM_SVX		73		/* Silicon Graphics SVx */
#define EM_ST19		74		/* STMicroelectronics ST19 8 bit mc */
#define EM_VAX		75		/* Digital VAX */
#define EM_CHRIS	76		/* Axis Communications embedded proc. */
#define EM_JAVELIN	77		/* Infineon Technologies emb. proc. */
#define EM_FIREPATH	78		/* Element 14 64-bit DSP Processor */
#define EM_ZSP		79		/* LSI Logic 16-bit DSP Processor */
#define EM_MMIX		80		/* Donald Knuth's edu 64-bit proc. */
#define EM_HUANY	81		/* Harvard University mach-indep objs */
#define EM_PRISM	82		/* SiTera Prism */
#define EM_AVR		83		/* Atmel AVR 8-bit microcontroller */
#define EM_FR30		84		/* Fujitsu FR30 */
#define EM_D10V		85		/* Mitsubishi DV10V */
#define EM_D30V		86		/* Mitsubishi DV30V */
#define EM_V850		87		/* NEC v850 */
#define EM_M32R		88		/* Mitsubishi M32R */
#define EM_MN10300	89		/* Matsushita MN10200 */
#define EM_MN10200	90		/* Matsushita MN10200 */
#define EM_PJ		91		/* picoJava */
#define EM_NUM		92		/* number of machine types */

/* Version */
#define EV_NONE		0		/* Invalid */
#define EV_CURRENT	1		/* Current */
#define EV_NUM		2		/* number of versions */

/* Section Header */
typedef struct {
	Elf32_Word	sh_name;	/* name - index into section header
					   string table section */
	Elf32_Word	sh_type;	/* type */
	Elf32_Word	sh_flags;	/* flags */
	Elf32_Addr	sh_addr;	/* address */
	Elf32_Off	sh_offset;	/* file offset */
	Elf32_Word	sh_size;	/* section size */
	Elf32_Word	sh_link;	/* section header table index link */
	Elf32_Word	sh_info;	/* extra information */
	Elf32_Word	sh_addralign;	/* address alignment */
	Elf32_Word	sh_entsize;	/* section entry size */
} Elf32_Shdr;

/* Special Section Indexes */
#define SHN_UNDEF	0		/* undefined */
#define SHN_LORESERVE	0xff00		/* lower bounds of reserved indexes */
#define SHN_LOPROC	0xff00		/* reserved range for processor */
#define SHN_HIPROC	0xff1f		/*   specific section indexes */
#define SHN_LOOS	0xff20		/* reserved range for operating */
#define SHN_HIOS	0xff3f		/*   specific semantics */
#define SHN_ABS		0xfff1		/* absolute value */
#define SHN_COMMON	0xfff2		/* common symbol */
#define SHN_XINDEX	0xffff		/* Index is an extra table */
#define SHN_HIRESERVE	0xffff		/* upper bounds of reserved indexes */

/* sh_type */
#define SHT_NULL	0		/* inactive */
#define SHT_PROGBITS	1		/* program defined information */
#define SHT_SYMTAB	2		/* symbol table section */
#define SHT_STRTAB	3		/* string table section */
#define SHT_RELA	4		/* relocation section with addends*/
#define SHT_HASH	5		/* symbol hash table section */
#define SHT_DYNAMIC	6		/* dynamic section */
#define SHT_NOTE	7		/* note section */
#define SHT_NOBITS	8		/* no space section */
#define SHT_REL		9		/* relation section without addends */
#define SHT_SHLIB	10		/* reserved - purpose unknown */
#define SHT_DYNSYM	11		/* dynamic symbol table section */
#define SHT_INIT_ARRAY	14		/* Array of constructors */
#define SHT_FINI_ARRAY	15		/* Array of destructors */
#define SHT_PREINIT_ARRAY 16		/* Array of pre-constructors */
#define SHT_GROUP	17		/* Section group */
#define SHT_SYMTAB_SHNDX 18		/* Extended section indeces */
#define SHT_NUM		19		/* number of section types */
#define SHT_LOOS	0x60000000	/* Start OS-specific */
#define SHT_HIOS	0x6fffffff	/* End OS-specific */
#define SHT_LOPROC	0x70000000	/* reserved range for processor */
#define SHT_HIPROC	0x7fffffff	/*  specific section header types */
#define SHT_LOUSER	0x80000000	/* reserved range for application */
#define SHT_HIUSER	0xffffffff	/*  specific indexes */

/* Section names */
#define ELF_BSS         ".bss"		/* uninitialized data */
#define ELF_COMMENT	".comment"	/* version control information */
#define ELF_DATA        ".data"		/* initialized data */
#define ELF_DATA1       ".data1"	/* initialized data */
#define ELF_DEBUG       ".debug"	/* debug */
#define ELF_DYNAMIC     ".dynamic"	/* dynamic linking information */
#define ELF_DYNSTR      ".dynstr"	/* dynamic string table */
#define ELF_DYNSYM      ".dynsym"	/* dynamic symbol table */
#define ELF_FINI        ".fini"		/* termination code */
#define ELF_FINI_ARRAY	".fini_array"	/* Array of destructors */