1 // SPDX-License-Identifier: GPL-2.0
3 * arch/arm/boot/compressed/string.c
5 * Small subset of simple string routines
8 #include <linux/string.h>
10 void *memcpy(void *__dest, __const void *__src, size_t __n)
13 unsigned char *d = (unsigned char *)__dest, *s = (unsigned char *)__src;
15 for (i = __n >> 3; i > 0; i--) {
44 void *memmove(void *__dest, __const void *__src, size_t count)
46 unsigned char *d = __dest;
47 const unsigned char *s = __src;
53 return memcpy(__dest, __src, count);
60 size_t strlen(const char *s)
69 size_t strnlen(const char *s, size_t count)
73 for (sc = s; count-- && *sc != '\0'; ++sc)
78 int memcmp(const void *cs, const void *ct, size_t count)
80 const unsigned char *su1 = cs, *su2 = ct, *end = su1 + count;
84 res = *su1++ - *su2++;
91 int strcmp(const char *cs, const char *ct)
106 void *memchr(const void *s, int c, size_t count)
108 const unsigned char *p = s;
111 if ((unsigned char)c == *p++)
112 return (void *)(p - 1);
116 char *strchr(const char *s, int c)
118 while (*s != (char)c)
124 char *strrchr(const char *s, int c)
126 const char *last = NULL;
136 void *memset(void *s, int c, size_t count)