Subversion Repositories openrisc_2011-10-31

#ifndef _LINUX_ELF_H

#define _LINUX_ELF_H

#if HAVE_CONFIG_H

#include <config.h>

#endif

#ifdef WORDS_BIGENDIAN

#define ELF_SHORT_H

#define ELF_LONG_H

#else

/* Load a short int from the following tables with big-endian formats */

#define ELF_SHORT_H(ps) ((((unsigned short)(ps) >> 8) & 0xff) |\

                         (((unsigned short)(ps) << 8) & 0xff00))

/* Load a long int from the following tables with big-endian formats */

#define ELF_LONG_H(ps) ((((unsigned long)(ps) >> 24) & 0xff) |\

                         (((unsigned long)(ps) >> 8) & 0xff00)|\

                         (((unsigned long)(ps) << 8) & 0xff0000)|\

                         (((unsigned long)(ps) << 24) & 0xff000000))

#endif

#ifdef OR32_TYPES

typedef uint32_t     Elf32_Addr;

typedef uint16_t     Elf32_Half;

typedef uint32_t     Elf32_Off;

typedef int32_t      Elf32_Sword;

typedef uint32_t     Elf32_Word;

#else

typedef unsigned long   Elf32_Addr;

typedef unsigned short  Elf32_Half;

typedef unsigned long   Elf32_Off;

typedef long            Elf32_Sword;

typedef unsigned long   Elf32_Word;

#endif

/* 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

/* 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 5

#define ET_HIPROC 6

/* 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_SPARC64     11       /* SPARC v9 (not official) 64-bit */

#define EM_PARISC      15       /* HPPA */

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

#define EM_PPC         20       /* PowerPC */

/*

 * This is an interim value that we will use until the committee comes

 * up with a final number.

 */

#define EM_ALPHA        0x9026

/* 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

/* 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 */

typedef struct dynamic{

  Elf32_Sword d_tag;

  union{

    Elf32_Sword d_val;

    Elf32_Addr  d_ptr;

  } d_un;

} Elf32_Dyn;

typedef struct {

  unsigned long long d_tag;             /* entry tag value */

  union {

    unsigned long long d_val;

    unsigned long long 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_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

typedef struct elf32_rel {

  Elf32_Addr    r_offset;

  Elf32_Word    r_info;

} Elf32_Rel;

typedef struct elf64_rel {

  unsigned long long r_offset;  /* Location at which to apply the action */

  unsigned long long 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 {

  unsigned long long r_offset;  /* Location at which to apply the action */

  unsigned long long r_info;    /* index and type of relocation */

  unsigned long long 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 {

  unsigned int  st_name;                /* Symbol name, index in string tbl */

  unsigned char st_info;                /* Type and binding attributes */

  unsigned char st_other;               /* No defined meaning, 0 */

  unsigned short st_shndx;              /* Associated section index */

  unsigned long long st_value;          /* Value of the symbol */

  unsigned long long 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" */

  short int e_type;

  short unsigned int e_machine;

  int   e_version;

  unsigned long long e_entry;           /* Entry point virtual address */

  unsigned long long e_phoff;           /* Program header table file offset */

  unsigned long long e_shoff;           /* Section header table file offset */

  int   e_flags;

  short int e_ehsize;

  short int e_phentsize;

  short int e_phnum;

  short int e_shentsize;

  short int e_shnum;

  short int 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 {

  int p_type;

  int p_flags;

  unsigned long long p_offset;          /* Segment file offset */

  unsigned long long p_vaddr;           /* Segment virtual address */

  unsigned long long p_paddr;           /* Segment physical address */

  unsigned long long p_filesz;          /* Segment size in file */

  unsigned long long p_memsz;           /* Segment size in memory */

  unsigned long long 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

/* sh_flags */

#define SHF_WRITE       0x1

#define SHF_ALLOC       0x2

#define SHF_EXECINSTR   0x4

#define SHF_MASKPROC    0xf0000000

/* 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

typedef struct elf32_shdr {

  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 {

  unsigned int  sh_name;                /* Section name, index in string tbl */

  unsigned int  sh_type;                /* Type of section */

  unsigned long long sh_flags;          /* Miscellaneous section attributes */

  unsigned long long sh_addr;           /* Section virtual addr at execution */

  unsigned long long sh_offset;         /* Section file offset */

  unsigned long long sh_size;           /* Size of section in bytes */

  unsigned int  sh_link;                /* Index of another section */

  unsigned int  sh_info;                /* Additional section information */

  unsigned long long sh_addralign;      /* Section alignment */

  unsigned long long 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 {

  unsigned int  n_namesz;       /* Name size */

  unsigned int  n_descsz;       /* Content size */

  unsigned int  n_type;         /* Content type */

} Elf64_Nhdr;

#ifdef __mc68000__

#define ELF_START_MMAP 0xC0000000

#endif

#ifdef __i386__

#define ELF_START_MMAP 0x80000000

#endif

#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 */