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#ifndef _LINUX_ELF_H
#define _LINUX_ELF_H

#include <linux/types.h>
#include <asm/elf.h>

/* 32-bit ELF base types. */
typedef __u32	Elf32_Addr;
typedef __u16	Elf32_Half;
typedef __u32	Elf32_Off;
typedef __s32	Elf32_Sword;
typedef __u32	Elf32_Word;

/* 64-bit ELF base types. */
typedef __u64	Elf64_Addr;
typedef __u16	Elf64_Half;
typedef __s16	Elf64_SHalf;
typedef __u64	Elf64_Off;
typedef __s64	Elf64_Sword;
typedef __u64	Elf64_Word;

/* These constants are for the segment types stored in the image headers */
#define PT_NULL    0
#define PT_LOAD    1
#define PT_DYNAMIC 2
#define PT_INTERP  3
#define PT_NOTE    4
#define PT_SHLIB   5
#define PT_PHDR    6
#define PT_LOPROC  0x70000000
#define PT_HIPROC  0x7fffffff
#define PT_MIPS_REGINFO		0x70000000

/* Flags in the e_flags field of the header */
#define EF_MIPS_NOREORDER 0x00000001
#define EF_MIPS_PIC       0x00000002
#define EF_MIPS_CPIC      0x00000004
#define EF_MIPS_ARCH      0xf0000000

/* These constants define the different elf file types */
#define ET_NONE   0
#define ET_REL    1
#define ET_EXEC   2
#define ET_DYN    3
#define ET_CORE   4
#define ET_LOPROC 0xff00
#define ET_HIPROC 0xffff

/* These constants define the various ELF target machines */
#define EM_NONE  0
#define EM_M32   1
#define EM_SPARC 2
#define EM_386   3
#define EM_68K   4
#define EM_88K   5
#define EM_486   6   /* Perhaps disused */
#define EM_860   7

#define EM_MIPS		8	/* MIPS R3000 (officially, big-endian only) */

#define EM_MIPS_RS4_BE 10	/* MIPS R4000 big-endian */

#define EM_PARISC      15	/* HPPA */

#define EM_SPARC32PLUS 18	/* Sun's "v8plus" */

#define EM_PPC	       20	/* PowerPC */

#define EM_SPARCV9     43	/* SPARC v9 64-bit */

/*
 * This is an interim value that we will use until the committee comes
 * up with a final number.
 */
#define EM_ALPHA	0x9026

/*
 * This is an interim value for S390 architecture
 */
#define EM_S390         0xA390

/* This is the info that is needed to parse the dynamic section of the file */
#define DT_NULL		0
#define DT_NEEDED	1
#define DT_PLTRELSZ	2
#define DT_PLTGOT	3
#define DT_HASH		4
#define DT_STRTAB	5
#define DT_SYMTAB	6
#define DT_RELA		7
#define DT_RELASZ	8
#define DT_RELAENT	9
#define DT_STRSZ	10
#define DT_SYMENT	11
#define DT_INIT		12
#define DT_FINI		13
#define DT_SONAME	14
#define DT_RPATH 	15
#define DT_SYMBOLIC	16
#define DT_REL	        17
#define DT_RELSZ	18
#define DT_RELENT	19
#define DT_PLTREL	20
#define DT_DEBUG	21
#define DT_TEXTREL	22
#define DT_JMPREL	23
#define DT_LOPROC	0x70000000
#define DT_HIPROC	0x7fffffff
#define DT_MIPS_RLD_VERSION	0x70000001
#define DT_MIPS_TIME_STAMP	0x70000002
#define DT_MIPS_ICHECKSUM	0x70000003
#define DT_MIPS_IVERSION	0x70000004
#define DT_MIPS_FLAGS		0x70000005
  #define RHF_NONE		  0
  #define RHF_HARDWAY		  1
  #define RHF_NOTPOT		  2
#define DT_MIPS_BASE_ADDRESS	0x70000006
#define DT_MIPS_CONFLICT	0x70000008
#define DT_MIPS_LIBLIST		0x70000009
#define DT_MIPS_LOCAL_GOTNO	0x7000000a
#define DT_MIPS_CONFLICTNO	0x7000000b
#define DT_MIPS_LIBLISTNO	0x70000010
#define DT_MIPS_SYMTABNO	0x70000011
#define DT_MIPS_UNREFEXTNO	0x70000012
#define DT_MIPS_GOTSYM		0x70000013
#define DT_MIPS_HIPAGENO	0x70000014
#define DT_MIPS_RLD_MAP		0x70000016

/* This info is needed when parsing the symbol table */
#define STB_LOCAL  0
#define STB_GLOBAL 1
#define STB_WEAK   2

#define STT_NOTYPE  0
#define STT_OBJECT  1
#define STT_FUNC    2
#define STT_SECTION 3
#define STT_FILE    4

#define ELF32_ST_BIND(x) ((x) >> 4)
#define ELF32_ST_TYPE(x) (((unsigned int) x) & 0xf)

/* Symbolic values for the entries in the auxiliary table
   put on the initial stack */
#define AT_NULL   0	/* end of vector */
#define AT_IGNORE 1	/* entry should be ignored */
#define AT_EXECFD 2	/* file descriptor of program */
#define AT_PHDR   3	/* program headers for program */
#define AT_PHENT  4	/* size of program header entry */
#define AT_PHNUM  5	/* number of program headers */
#define AT_PAGESZ 6	/* system page size */
#define AT_BASE   7	/* base address of interpreter */
#define AT_FLAGS  8	/* flags */
#define AT_ENTRY  9	/* entry point of program */
#define AT_NOTELF 10	/* program is not ELF */
#define AT_UID    11	/* real uid */
#define AT_EUID   12	/* effective uid */
#define AT_GID    13	/* real gid */
#define AT_EGID   14	/* effective gid */
#define AT_PLATFORM 15  /* string identifying CPU for optimizations */
#define AT_HWCAP  16    /* arch dependent hints at CPU capabilities */

typedef struct dynamic{
  Elf32_Sword d_tag;
  union{
    Elf32_Sword	d_val;
    Elf32_Addr	d_ptr;
  } d_un;
} Elf32_Dyn;

typedef struct {
  Elf64_Word d_tag;		/* entry tag value */
  union {
    Elf64_Word d_val;
    Elf64_Word d_ptr;
  } d_un;
} Elf64_Dyn;

/* The following are used with relocations */
#define ELF32_R_SYM(x) ((x) >> 8)
#define ELF32_R_TYPE(x) ((x) & 0xff)

#define R_386_NONE	0
#define R_386_32	1
#define R_386_PC32	2
#define R_386_GOT32	3
#define R_386_PLT32	4
#define R_386_COPY	5
#define R_386_GLOB_DAT	6
#define R_386_JMP_SLOT	7
#define R_386_RELATIVE	8
#define R_386_GOTOFF	9
#define R_386_GOTPC	10
#define R_386_NUM	11

#define R_MIPS_NONE		0
#define R_MIPS_16		1
#define R_MIPS_32		2
#define R_MIPS_REL32		3
#define R_MIPS_26		4
#define R_MIPS_HI16		5
#define R_MIPS_LO16		6
#define R_MIPS_GPREL16		7
#define R_MIPS_LITERAL		8
#define R_MIPS_GOT16		9
#define R_MIPS_PC16		10
#define R_MIPS_CALL16		11
#define R_MIPS_GPREL32		12
/* The remaining relocs are defined on Irix, although they are not
   in the MIPS ELF ABI.  */
#define R_MIPS_UNUSED1		13
#define R_MIPS_UNUSED2		14
#define R_MIPS_UNUSED3		15
#define R_MIPS_SHIFT5		16
#define R_MIPS_SHIFT6		17
#define R_MIPS_64		18
#define R_MIPS_GOT_DISP		19
#define R_MIPS_GOT_PAGE		20
#define R_MIPS_GOT_OFST		21
/*
 * The following two relocation types are specified in the the MIPS ABI
 * conformance guide version 1.2 but not yet in the psABI.
 */
#define R_MIPS_GOTHI16		22
#define R_MIPS_GOTLO16		23
#define R_MIPS_SUB		24
#define R_MIPS_INSERT_A		25
#define R_MIPS_INSERT_B		26
#define R_MIPS_DELETE		27
#define R_MIPS_HIGHER		28
#define R_MIPS_HIGHEST		29
/*
 * The following two relocation types are specified in the the MIPS ABI
 * conformance guide version 1.2 but not yet in the psABI.
 */
#define R_MIPS_CALLHI16		30
#define R_MIPS_CALLLO16		31
/*
 * This range is reserved for vendor specific relocations.
 */
#define R_MIPS_LOVENDOR		100
#define R_MIPS_HIVENDOR		127


/*
 * Sparc ELF relocation types
 */
#define	R_SPARC_NONE		0
#define	R_SPARC_8		1
#define	R_SPARC_16		2
#define	R_SPARC_32		3
#define	R_SPARC_DISP8		4
#define	R_SPARC_DISP16		5
#define	R_SPARC_DISP32		6
#define	R_SPARC_WDISP30		7
#define	R_SPARC_WDISP22		8
#define	R_SPARC_HI22		9
#define	R_SPARC_22		10
#define	R_SPARC_13		11
#define	R_SPARC_LO10		12
#define	R_SPARC_GOT10		13
#define	R_SPARC_GOT13		14
#define	R_SPARC_GOT22		15
#define	R_SPARC_PC10		16
#define	R_SPARC_PC22		17
#define	R_SPARC_WPLT30		18
#define	R_SPARC_COPY		19
#define	R_SPARC_GLOB_DAT	20
#define	R_SPARC_JMP_SLOT	21
#define	R_SPARC_RELATIVE	22
#define	R_SPARC_UA32		23
#define R_SPARC_PLT32		24
#define R_SPARC_HIPLT22		25
#define R_SPARC_LOPLT10		26
#define R_SPARC_PCPLT32		27
#define R_SPARC_PCPLT22		28
#define R_SPARC_PCPLT10		29
#define R_SPARC_10		30
#define R_SPARC_11		31
#define R_SPARC_WDISP16		40
#define R_SPARC_WDISP19		41
#define R_SPARC_7		43
#define R_SPARC_5		44
#define R_SPARC_6		45

/* Bits present in AT_HWCAP, primarily for Sparc32.  */

#define HWCAP_SPARC_FLUSH       1    /* CPU supports flush instruction. */
#define HWCAP_SPARC_STBAR       2
#define HWCAP_SPARC_SWAP        4
#define HWCAP_SPARC_MULDIV      8
#define HWCAP_SPARC_V9		16


/*
 * 68k ELF relocation types
 */
#define R_68K_NONE	0
#define R_68K_32	1
#define R_68K_16	2
#define R_68K_8		3
#define R_68K_PC32	4
#define R_68K_PC16	5
#define R_68K_PC8	6
#define R_68K_GOT32	7
#define R_68K_GOT16	8
#define R_68K_GOT8	9
#define R_68K_GOT32O	10
#define R_68K_GOT16O	11
#define R_68K_GOT8O	12
#define R_68K_PLT32	13
#define R_68K_PLT16	14
#define R_68K_PLT8	15
#define R_68K_PLT32O	16
#define R_68K_PLT16O	17
#define R_68K_PLT8O	18
#define R_68K_COPY	19
#define R_68K_GLOB_DAT	20
#define R_68K_JMP_SLOT	21
#define R_68K_RELATIVE	22

/*
 * Alpha ELF relocation types
 */
#define R_ALPHA_NONE            0       /* No reloc */
#define R_ALPHA_REFLONG         1       /* Direct 32 bit */
#define R_ALPHA_REFQUAD         2       /* Direct 64 bit */
#define R_ALPHA_GPREL32         3       /* GP relative 32 bit */
#define R_ALPHA_LITERAL         4       /* GP relative 16 bit w/optimization */
#define R_ALPHA_LITUSE          5       /* Optimization hint for LITERAL */
#define R_ALPHA_GPDISP          6       /* Add displacement to GP */
#define R_ALPHA_BRADDR          7       /* PC+4 relative 23 bit shifted */
#define R_ALPHA_HINT            8       /* PC+4 relative 16 bit shifted */
#define R_ALPHA_SREL16          9       /* PC relative 16 bit */
#define R_ALPHA_SREL32          10      /* PC relative 32 bit */
#define R_ALPHA_SREL64          11      /* PC relative 64 bit */
#define R_ALPHA_OP_PUSH         12      /* OP stack push */
#define R_ALPHA_OP_STORE        13      /* OP stack pop and store */
#define R_ALPHA_OP_PSUB         14      /* OP stack subtract */
#define R_ALPHA_OP_PRSHIFT      15      /* OP stack right shift */
#define R_ALPHA_GPVALUE         16
#define R_ALPHA_GPRELHIGH       17
#define R_ALPHA_GPRELLOW        18
#define R_ALPHA_IMMED_GP_16     19
#define R_ALPHA_IMMED_GP_HI32   20
#define R_ALPHA_IMMED_SCN_HI32  21
#define R_ALPHA_IMMED_BR_HI32   22
#define R_ALPHA_IMMED_LO32      23
#define R_ALPHA_COPY            24      /* Copy symbol at runtime */
#define R_ALPHA_GLOB_DAT        25      /* Create GOT entry */
#define R_ALPHA_JMP_SLOT        26      /* Create PLT entry */
#define R_ALPHA_RELATIVE        27      /* Adjust by program base */

/* Legal values for e_flags field of Elf64_Ehdr.  */

#define EF_ALPHA_32BIT		1	/* All addresses are below 2GB */


typedef struct elf32_rel {
  Elf32_Addr	r_offset;
  Elf32_Word	r_info;
} Elf32_Rel;

typedef struct elf64_rel {
  Elf64_Addr r_offset;	/* Location at which to apply the action */
  Elf64_Word r_info;	/* index and type of relocation */
} Elf64_Rel;

typedef struct elf32_rela{
  Elf32_Addr	r_offset;
  Elf32_Word	r_info;
  Elf32_Sword	r_addend;
} Elf32_Rela;

typedef struct elf64_rela {
  Elf64_Addr r_offset;	/* Location at which to apply the action */
  Elf64_Word r_info;	/* index and type of relocation */
  Elf64_Word r_addend;	/* Constant addend used to compute value */
} Elf64_Rela;

typedef struct elf32_sym{
  Elf32_Word	st_name;
  Elf32_Addr	st_value;
  Elf32_Word	st_size;
  unsigned char	st_info;
  unsigned char	st_other;
  Elf32_Half	st_shndx;
} Elf32_Sym;

typedef struct elf64_sym {
  Elf32_Word st_name;		/* Symbol name, index in string tbl (yes, Elf32) */
  unsigned char	st_info;	/* Type and binding attributes */
  unsigned char	st_other;	/* No defined meaning, 0 */
  Elf64_Half st_shndx;		/* Associated section index */
  Elf64_Addr st_value;		/* Value of the symbol */
  Elf64_Word st_size;		/* Associated symbol size */
} Elf64_Sym;


#define EI_NIDENT	16

typedef struct elf32_hdr{
  unsigned char	e_ident[EI_NIDENT];
  Elf32_Half	e_type;
  Elf32_Half	e_machine;
  Elf32_Word	e_version;
  Elf32_Addr	e_entry;  /* Entry point */
  Elf32_Off	e_phoff;
  Elf32_Off	e_shoff;
  Elf32_Word	e_flags;
  Elf32_Half	e_ehsize;
  Elf32_Half	e_phentsize;
  Elf32_Half	e_phnum;
  Elf32_Half	e_shentsize;
  Elf32_Half	e_shnum;
  Elf32_Half	e_shstrndx;
} Elf32_Ehdr;

typedef struct elf64_hdr {
  unsigned char	e_ident[16];		/* ELF "magic number" */
  Elf64_SHalf e_type;
  Elf64_Half e_machine;
  __s32 e_version;
  Elf64_Addr e_entry;		/* Entry point virtual address */
  Elf64_Off e_phoff;		/* Program header table file offset */
  Elf64_Off e_shoff;		/* Section header table file offset */
  __s32 e_flags;
  Elf64_SHalf e_ehsize;
  Elf64_SHalf e_phentsize;
  Elf64_SHalf e_phnum;
  Elf64_SHalf e_shentsize;
  Elf64_SHalf e_shnum;
  Elf64_SHalf e_shstrndx;
} Elf64_Ehdr;

/* These constants define the permissions on sections in the program
   header, p_flags. */
#define PF_R		0x4
#define PF_W		0x2
#define PF_X		0x1

typedef struct elf32_phdr{
  Elf32_Word	p_type;
  Elf32_Off	p_offset;
  Elf32_Addr	p_vaddr;
  Elf32_Addr	p_paddr;
  Elf32_Word	p_filesz;
  Elf32_Word	p_memsz;
  Elf32_Word	p_flags;
  Elf32_Word	p_align;
} Elf32_Phdr;

typedef struct elf64_phdr {
  __s32 p_type;
  __s32 p_flags;
  Elf64_Off p_offset;		/* Segment file offset */
  Elf64_Addr p_vaddr;		/* Segment virtual address */
  Elf64_Addr p_paddr;		/* Segment physical address */
  Elf64_Word p_filesz;		/* Segment size in file */
  Elf64_Word p_memsz;		/* Segment size in memory */
  Elf64_Word p_align;		/* Segment alignment, file & memory */
} Elf64_Phdr;

/* sh_type */
#define SHT_NULL	0
#define SHT_PROGBITS	1
#define SHT_SYMTAB	2
#define SHT_STRTAB	3
#define SHT_RELA	4
#define SHT_HASH	5
#define SHT_DYNAMIC	6
#define SHT_NOTE	7
#define SHT_NOBITS	8
#define SHT_REL		9
#define SHT_SHLIB	10
#define SHT_DYNSYM	11
#define SHT_NUM		12
#define SHT_LOPROC	0x70000000
#define SHT_HIPROC	0x7fffffff
#define SHT_LOUSER	0x80000000
#define SHT_HIUSER	0xffffffff
#define SHT_MIPS_LIST		0x70000000
#define SHT_MIPS_CONFLICT	0x70000002
#define SHT_MIPS_GPTAB		0x70000003
#define SHT_MIPS_UCODE		0x70000004

/* sh_flags */
#define SHF_WRITE	0x1
#define SHF_ALLOC	0x2
#define SHF_EXECINSTR	0x4
#define SHF_MASKPROC	0xf0000000
#define SHF_MIPS_GPREL	0x10000000

/* special section indexes */
#define SHN_UNDEF	0
#define SHN_LORESERVE	0xff00
#define SHN_LOPROC	0xff00
#define SHN_HIPROC	0xff1f
#define SHN_ABS		0xfff1
#define SHN_COMMON	0xfff2
#define SHN_HIRESERVE	0xffff
#define SHN_MIPS_ACCOMON	0xff00
 
typedef struct {
  Elf32_Word	sh_name;
  Elf32_Word	sh_type;
  Elf32_Word	sh_flags;
  Elf32_Addr	sh_addr;
  Elf32_Off	sh_offset;
  Elf32_Word	sh_size;
  Elf32_Word	sh_link;
  Elf32_Word	sh_info;
  Elf32_Word	sh_addralign;
  Elf32_Word	sh_entsize;
} Elf32_Shdr;

typedef struct elf64_shdr {
  Elf32_Word sh_name;		/* Section name, index in string tbl (yes Elf32) */
  Elf32_Word sh_type;		/* Type of section (yes Elf32) */
  Elf64_Word sh_flags;		/* Miscellaneous section attributes */
  Elf64_Addr sh_addr;		/* Section virtual addr at execution */
  Elf64_Off sh_offset;		/* Section file offset */
  Elf64_Word sh_size;		/* Size of section in bytes */
  Elf32_Word sh_link;		/* Index of another section (yes Elf32) */
  Elf32_Word sh_info;		/* Additional section information (yes Elf32) */
  Elf64_Word sh_addralign;	/* Section alignment */
  Elf64_Word sh_entsize;	/* Entry size if section holds table */
} Elf64_Shdr;

#define	EI_MAG0		0		/* e_ident[] indexes */
#define	EI_MAG1		1
#define	EI_MAG2		2
#define	EI_MAG3		3
#define	EI_CLASS	4
#define	EI_DATA		5
#define	EI_VERSION	6
#define	EI_PAD		7

#define	ELFMAG0		0x7f		/* EI_MAG */
#define	ELFMAG1		'E'
#define	ELFMAG2		'L'
#define	ELFMAG3		'F'
#define	ELFMAG		"\177ELF"
#define	SELFMAG		4

#define	ELFCLASSNONE	0		/* EI_CLASS */
#define	ELFCLASS32	1
#define	ELFCLASS64	2
#define	ELFCLASSNUM	3

#define ELFDATANONE	0		/* e_ident[EI_DATA] */
#define ELFDATA2LSB	1
#define ELFDATA2MSB	2

#define EV_NONE		0		/* e_version, EI_VERSION */
#define EV_CURRENT	1
#define EV_NUM		2

/* Notes used in ET_CORE */
#define NT_PRSTATUS	1
#define NT_PRFPREG	2
#define NT_PRPSINFO	3
#define NT_TASKSTRUCT	4

/* Note header in a PT_NOTE section */
typedef struct elf32_note {
  Elf32_Word	n_namesz;	/* Name size */
  Elf32_Word	n_descsz;	/* Content size */
  Elf32_Word	n_type;		/* Content type */
} Elf32_Nhdr;

/* Note header in a PT_NOTE section */
/*
 * For now we use the 32 bit version of the structure until we figure
 * out whether we need anything better.  Note - on the Alpha, "unsigned int"
 * is only 32 bits.
 */
typedef struct elf64_note {
  Elf32_Word n_namesz;	/* Name size */
  Elf32_Word n_descsz;	/* Content size */
  Elf32_Word n_type;	/* Content type */
} Elf64_Nhdr;

#if ELF_CLASS == ELFCLASS32

extern Elf32_Dyn _DYNAMIC [];
#define elfhdr		elf32_hdr
#define elf_phdr	elf32_phdr
#define elf_note	elf32_note

#else

extern Elf64_Dyn _DYNAMIC [];
#define elfhdr		elf64_hdr
#define elf_phdr	elf64_phdr
#define elf_note	elf64_note

#endif


#endif /* _LINUX_ELF_H */