summaryrefslogtreecommitdiffstats
path: root/arch/x86/lib/memmove_64.c
blob: 80175e47b1902e4a3b5015599a5cc102e3922008 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
/* Normally compiler builtins are used, but sometimes the compiler calls out
   of line code. Based on asm-i386/string.h.
 */
#define _STRING_C
#include <linux/string.h>
#include <linux/module.h>

#undef memmove
void *memmove(void * dest,const void *src,size_t count)
{
	if (dest < src) { 
		return memcpy(dest,src,count);
	} else {
		char *p = dest + count;
		const char *s = src + count;
		while (count--)
			*--p = *--s;
	}
	return dest;
} 
EXPORT_SYMBOL(memmove);
OpenPOWER on IntegriCloud