ArmPkg/Library/CompilerIntrinsicsLib/memcpy.c

   1 //------------------------------------------------------------------------------
   2 //
   3 // Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>
   4 //
   5 // SPDX-License-Identifier: BSD-2-Clause-Patent
   6 //
   7 //------------------------------------------------------------------------------
   8
   9 typedef __SIZE_TYPE__ size_t;
  10
  11 static void __memcpy(void *dest, const void *src, size_t n)
  12 {
  13   unsigned char *d = dest;
  14   unsigned char const *s = src;
  15
  16   while (n--)
  17     *d++ = *s++;
  18 }
  19
  20 void *memcpy(void *dest, const void *src, size_t n)
  21 {
  22   __memcpy(dest, src, n);
  23   return dest;
  24 }
  25
  26 #ifdef __arm__
  27
  28 __attribute__((__alias__("__memcpy")))
  29 void __aeabi_memcpy(void *dest, const void *src, size_t n);
  30
  31 __attribute__((__alias__("__memcpy")))
  32 void __aeabi_memcpy4(void *dest, const void *src, size_t n);
  33
  34 __attribute__((__alias__("__memcpy")))
  35 void __aeabi_memcpy8(void *dest, const void *src, size_t n);
  36
  37 #endif