ArmPkg/Library/CompilerIntrinsicsLib/memcpy.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37

//------------------------------------------------------------------------------
//
// Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>
//
// SPDX-License-Identifier: BSD-2-Clause-Patent
//
//------------------------------------------------------------------------------

typedef __SIZE_TYPE__ size_t;

static void __memcpy(void *dest, const void *src, size_t n)
{
  unsigned char *d = dest;
  unsigned char const *s = src;

  while (n--)
    *d++ = *s++;
}

void *memcpy(void *dest, const void *src, size_t n)
{
  __memcpy(dest, src, n);
  return dest;
}

#ifdef __arm__

__attribute__((__alias__("__memcpy")))
void __aeabi_memcpy(void *dest, const void *src, size_t n);

__attribute__((__alias__("__memcpy")))
void __aeabi_memcpy4(void *dest, const void *src, size_t n);

__attribute__((__alias__("__memcpy")))
void __aeabi_memcpy8(void *dest, const void *src, size_t n);

#endif