diff options
Diffstat (limited to 'arch/mips/boot/compressed/string.c')
| -rw-r--r-- | arch/mips/boot/compressed/string.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/mips/boot/compressed/string.c b/arch/mips/boot/compressed/string.c index 9de9885acd0d..f0eb251e44e5 100644 --- a/arch/mips/boot/compressed/string.c +++ b/arch/mips/boot/compressed/string.c @@ -1,10 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0 /* * arch/mips/boot/compressed/string.c * * Very small subset of simple string routines */ +#include <linux/compiler_attributes.h> #include <linux/types.h> +#include <asm/string.h> void *memcpy(void *dest, const void *src, size_t n) { @@ -26,3 +29,19 @@ void *memset(void *s, int c, size_t n) ss[i] = c; return s; } + +void * __weak memmove(void *dest, const void *src, size_t n) +{ + unsigned int i; + const char *s = src; + char *d = dest; + + if ((uintptr_t)dest < (uintptr_t)src) { + for (i = 0; i < n; i++) + d[i] = s[i]; + } else { + for (i = n; i > 0; i--) + d[i - 1] = s[i - 1]; + } + return dest; +} |