/* Linux/ARM version of processor capability information handling macros.

   Copyright (C) 2001-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Philip Blundell <philb@gnu.org>, 2001.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library.  If not, see

   <http://www.gnu.org/licenses/>.  */

#ifndef _DL_PROCINFO_H

#define _DL_PROCINFO_H	1

#include <ldsodefs.h>

#include <sysdep.h>

#define _DL_HWCAP_COUNT 27

/* Low 22 bits are allocated in HWCAP.  */

#define _DL_HWCAP_LAST		21

/* Low 5 bits are allocated in HWCAP2.  */

#define _DL_HWCAP2_LAST		4

/* The kernel provides platform data but it is not interesting.  */

#define _DL_HWCAP_PLATFORM	0

static inline const char *

__attribute__ ((unused))

_dl_hwcap_string (int idx)

{

  return GLRO(dl_arm_cap_flags)[idx];

};

static inline int

__attribute__ ((unused))

_dl_procinfo (unsigned int type, unsigned long int word)

{

  switch(type)

    {

    case AT_HWCAP:

      _dl_printf ("AT_HWCAP:       ");

      for (int i = 0; i <= _DL_HWCAP_LAST; ++i)

	if (word & (1 << i))

	  _dl_printf (" %s", _dl_hwcap_string (i));

      break;

    case AT_HWCAP2:

      {

	unsigned int offset = _DL_HWCAP_LAST + 1;

	_dl_printf ("AT_HWCAP2:      ");

	for (int i = 0; i <= _DL_HWCAP2_LAST; ++i)

	  if (word & (1 << i))

	    _dl_printf (" %s", _dl_hwcap_string (offset + i));

	break;

      }

    default:

      /* This should not happen.  */

      return -1;

    }

  _dl_printf ("\n");

  return 0;

}

#define HWCAP_IMPORTANT		(HWCAP_ARM_VFP | HWCAP_ARM_NEON)

static inline int

__attribute__ ((unused))

_dl_string_hwcap (const char *str)

{

  for (int i = 0; i < _DL_HWCAP_COUNT; i++)

    {

      if (strcmp (str, _dl_hwcap_string (i)) == 0)

	return i;

    }

  return -1;

};

#define _dl_string_platform(str) (-1)

#endif /* dl-procinfo.h */