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{
  Elf64_Word    vna_hash;               /* Hash value of dependency name */
  Elf64_Half    vna_flags;              /* Dependency specific information */
  Elf64_Half    vna_other;              /* Unused */
  Elf64_Word    vna_name;               /* Dependency name string offset */
  Elf64_Word    vna_next;               /* Offset in bytes to next vernaux
                                           entry */
} Elf64_Vernaux;


/* Legal values for vna_flags.  */
#define VER_FLG_WEAK    0x2             /* Weak version identifier */


/* Auxiliary vector.  */

/* This vector is normally only used by the program interpreter.  The
   usual definition in an ABI supplement uses the name auxv_t.  The
   vector is not usually defined in a standard <elf.h> file, but it
   can't hurt.  We rename it to avoid conflicts.  The sizes of these
   types are an arrangement between the exec server and the program
   interpreter, so we don't fully specify them here.  */

typedef struct
{
  int a_type;                   /* Entry type */
  union
    {
      long int a_val;           /* Integer value */
      void *a_ptr;              /* Pointer value */
      void (*a_fcn) (void);     /* Function pointer value */
    } a_un;
} Elf32_auxv_t;

typedef struct
{
  long int a_type;              /* Entry type */
  union
    {
      long int a_val;           /* Integer value */
      void *a_ptr;              /* Pointer value */
      void (*a_fcn) (void);     /* Function pointer value */
    } a_un;
} Elf64_auxv_t;

/* Legal values for a_type (entry type).  */

#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 */

/* Some more special a_type values describing the hardware.  */
#define AT_PLATFORM     15              /* String identifying platform.  */
#define AT_HWCAP        16              /* Machine dependent hints about
                                           processor capabilities.  */

/* This entry gives some information about the FPU initialization
   performed by the kernel.  */
#define AT_FPUCW        17              /* Used FPU control word.  */


/* Note section contents.  Each entry in the note section begins with
   a header of a fixed form.  */

typedef struct
{
  Elf32_Word n_namesz;                  /* Length of the note's name.  */
  Elf32_Word n_descsz;                  /* Length of the note's descriptor.  */
  Elf32_Word n_type;                    /* Type of the note.  */
} Elf32_Nhdr;

typedef struct
{
  Elf64_Word n_namesz;                  /* Length of the note's name.  */
  Elf64_Word n_descsz;                  /* Length of the note's descriptor.  */
  Elf64_Word n_type;                    /* Type of the note.  */
} Elf64_Nhdr;

/* Known names of notes.  */

/* Solaris entries in the note section have this name.  */
#define ELF_NOTE_SOLARIS        "SUNW Solaris"

/* Note entries for GNU systems have this name.  */
#define ELF_NOTE_GNU            "GNU"


/* Defined types of notes for Solaris.  */

/* Value of descriptor (one word) is desired pagesize for the binary.  */
#define ELF_NOTE_PAGESIZE_HINT  1


/* Defined note types for GNU systems.  */

/* ABI information.  The descriptor consists of words:
   word 0: OS descriptor
   word 1: major version of the ABI
   word 2: minor version of the ABI
   word 3: subminor version of the ABI
*/
#define ELF_NOTE_ABI            1

/* Known OSes.  These value can appear in word 0 of an ELF_NOTE_ABI
   note section entry.  */
#define ELF_NOTE_OS_LINUX       0
#define ELF_NOTE_OS_GNU         1
#define ELF_NOTE_OS_SOLARIS2    2