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typedef struct
{
  Elf32_Half    vn_version;             /* Version of structure */
  Elf32_Half    vn_cnt;                 /* Number of associated aux entries */
  Elf32_Word    vn_file;                /* Offset of filename for this
                                           dependency */
  Elf32_Word    vn_aux;                 /* Offset in bytes to vernaux array */
  Elf32_Word    vn_next;                /* Offset in bytes to next verneed
                                           entry */
} Elf32_Verneed;

typedef struct
{
  Elf64_Half    vn_version;             /* Version of structure */
  Elf64_Half    vn_cnt;                 /* Number of associated aux entries */
  Elf64_Word    vn_file;                /* Offset of filename for this
                                           dependency */
  Elf64_Word    vn_aux;                 /* Offset in bytes to vernaux array */
  Elf64_Word    vn_next;                /* Offset in bytes to next verneed
                                           entry */
} Elf64_Verneed;


/* Legal values for vn_version (version revision).  */
#define VER_NEED_NONE    0              /* No version */
#define VER_NEED_CURRENT 1              /* Current version */
#define VER_NEED_NUM     2              /* Given version number */

/* Auxiliary needed version information.  */

typedef struct
{
  Elf32_Word    vna_hash;               /* Hash value of dependency name */
  Elf32_Half    vna_flags;              /* Dependency specific information */
  Elf32_Half    vna_other;              /* Unused */
  Elf32_Word    vna_name;               /* Dependency name string offset */
  Elf32_Word    vna_next;               /* Offset in bytes to next vernaux
                                           entry */
} Elf32_Vernaux;

typedef struct
{
  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.  */