/*
 *
 *  Embedded Linux library
 *
 *  Copyright (C) 2011-2014  Intel Corporation. All rights reserved.
 *
 *  This 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.
 *
 *  This 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 this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#include <sys/syscall.h>

#ifndef __NR_getrandom
#  if defined __x86_64__
#    define __NR_getrandom 318
#  elif defined(__i386__)
#    define __NR_getrandom 355
#  elif defined(__arm__)
#    define __NR_getrandom 384
# elif defined(__aarch64__)
#    define __NR_getrandom 278
#  elif defined(__ia64__)
#    define __NR_getrandom 1339
#  elif defined(__m68k__)
#    define __NR_getrandom 352
#  elif defined(__s390x__)
#    define __NR_getrandom 349
#  elif defined(__powerpc__)
#    define __NR_getrandom 359
#  elif defined _MIPS_SIM
#    if _MIPS_SIM == _MIPS_SIM_ABI32
#      define __NR_getrandom 4353
#    endif
#    if _MIPS_SIM == _MIPS_SIM_NABI32
#      define __NR_getrandom 6317
#    endif
#    if _MIPS_SIM == _MIPS_SIM_ABI64
#      define __NR_getrandom 5313
#    endif
#  else
#    warning "__NR_getrandom unknown for your architecture"
#    define __NR_getrandom 0xffffffff
#  endif
#endif

#ifndef HAVE_EXPLICIT_BZERO
static inline void explicit_bzero(void *s, size_t n)
{
	memset(s, 0, n);
	__asm__ __volatile__ ("" : : "r"(s) : "memory");
}
#endif