newlib/libc/machine/arm/aeabi_memclr.c

   1 /*
   2  * Copyright (c) 2015 ARM Ltd
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. The name of the company may not be used to endorse or promote
  14  *    products derived from this software without specific prior written
  15  *    permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
  18  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
  22  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  23  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  24  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  25  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  26  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include <stddef.h>
  30 #include <_ansi.h>
  31
  32 /* Support the alias for the __aeabi_memclr which may
  33    assume memory alignment.  */
  34 void __aeabi_memclr4 (void *dest, size_t n)
  35         _ATTRIBUTE ((alias ("__aeabi_memclr")));
  36
  37 void __aeabi_memclr8 (void *dest, size_t n)
  38         _ATTRIBUTE ((alias ("__aeabi_memclr")));
  39
  40 /* Support the routine __aeabi_memclr.  */
  41 void __aeabi_memclr (void *dest, size_t n)
  42 {
  43   extern void __aeabi_memset (void *dest, size_t n, int c);
  44   __aeabi_memset (dest, n, 0);
  45 }