1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * arch/mips/boot/compressed/string.c
4 *
5 * Very small subset of simple string routines
6 */
7
8 #include <linux/compiler_attributes.h>
9 #include <linux/types.h>
10 #include <asm/string.h>
11
12 void *memcpy(void *dest, const void *src, size_t n)
13 {
14 int i;
15 const char *s = src;
16 char *d = dest;
17
18 for (i = 0; i < n; i++)
19 d[i] = s[i];
20 return dest;
21 }
22
23 void *memset(void *s, int c, size_t n)
24 {
25 int i;
26 char *ss = s;
27
28 for (i = 0; i < n; i++)
29 ss[i] = c;
30 return s;
31 }
32
33 void * __weak memmove(void *dest, const void *src, size_t n)
34 {
35 unsigned int i;
36 const char *s = src;
37 char *d = dest;
38
39 if ((uintptr_t)dest < (uintptr_t)src) {
40 for (i = 0; i < n; i++)
41 d[i] = s[i];
42 } else {
43 for (i = n; i > 0; i--)
44 d[i - 1] = s[i - 1];
45 }
46 return dest;
47 }
48
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