| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef __ASM_SH_STRING_H |
| #define __ASM_SH_STRING_H |
| |
| #ifdef __KERNEL__ |
| |
| /* |
| * Copyright (C) 1999 Niibe Yutaka |
| * But consider these trivial functions to be public domain. |
| */ |
| |
| #define __HAVE_ARCH_STRCPY |
| static inline char *strcpy(char *__dest, const char *__src) |
| { |
| register char *__xdest = __dest; |
| unsigned long __dummy; |
| |
| __asm__ __volatile__("1:\n\t" |
| "mov.b @%1+, %2\n\t" |
| "mov.b %2, @%0\n\t" |
| "cmp/eq #0, %2\n\t" |
| "bf/s 1b\n\t" |
| " add #1, %0\n\t" |
| : "=r" (__dest), "=r" (__src), "=&z" (__dummy) |
| : "0" (__dest), "1" (__src) |
| : "memory", "t"); |
| |
| return __xdest; |
| } |
| |
| #define __HAVE_ARCH_STRNCPY |
| static inline char *strncpy(char *__dest, const char *__src, size_t __n) |
| { |
| register char *__xdest = __dest; |
| unsigned long __dummy; |
| |
| if (__n == 0) |
| return __xdest; |
| |
| __asm__ __volatile__( |
| "1:\n" |
| "mov.b @%1+, %2\n\t" |
| "mov.b %2, @%0\n\t" |
| "cmp/eq #0, %2\n\t" |
| "bt/s 2f\n\t" |
| " cmp/eq %5,%1\n\t" |
| "bf/s 1b\n\t" |
| " add #1, %0\n" |
| "2:" |
| : "=r" (__dest), "=r" (__src), "=&z" (__dummy) |
| : "0" (__dest), "1" (__src), "r" (__src+__n) |
| : "memory", "t"); |
| |
| return __xdest; |
| } |
| |
| #define __HAVE_ARCH_STRCMP |
| static inline int strcmp(const char *__cs, const char *__ct) |
| { |
| register int __res; |
| unsigned long __dummy; |
| |
| __asm__ __volatile__( |
| "mov.b @%1+, %3\n" |
| "1:\n\t" |
| "mov.b @%0+, %2\n\t" |
| "cmp/eq #0, %3\n\t" |
| "bt 2f\n\t" |
| "cmp/eq %2, %3\n\t" |
| "bt/s 1b\n\t" |
| " mov.b @%1+, %3\n\t" |
| "add #-2, %1\n\t" |
| "mov.b @%1, %3\n\t" |
| "sub %3, %2\n" |
| "2:" |
| : "=r" (__cs), "=r" (__ct), "=&r" (__res), "=&z" (__dummy) |
| : "0" (__cs), "1" (__ct) |
| : "t"); |
| |
| return __res; |
| } |
| |
| #define __HAVE_ARCH_STRNCMP |
| static inline int strncmp(const char *__cs, const char *__ct, size_t __n) |
| { |
| register int __res; |
| unsigned long __dummy; |
| |
| if (__n == 0) |
| return 0; |
| |
| __asm__ __volatile__( |
| "mov.b @%1+, %3\n" |
| "1:\n\t" |
| "mov.b @%0+, %2\n\t" |
| "cmp/eq %6, %0\n\t" |
| "bt/s 2f\n\t" |
| " cmp/eq #0, %3\n\t" |
| "bt/s 3f\n\t" |
| " cmp/eq %3, %2\n\t" |
| "bt/s 1b\n\t" |
| " mov.b @%1+, %3\n\t" |
| "add #-2, %1\n\t" |
| "mov.b @%1, %3\n" |
| "2:\n\t" |
| "sub %3, %2\n" |
| "3:" |
| :"=r" (__cs), "=r" (__ct), "=&r" (__res), "=&z" (__dummy) |
| : "0" (__cs), "1" (__ct), "r" (__cs+__n) |
| : "t"); |
| |
| return __res; |
| } |
| |
| #define __HAVE_ARCH_MEMSET |
| extern void *memset(void *__s, int __c, size_t __count); |
| |
| #define __HAVE_ARCH_MEMCPY |
| extern void *memcpy(void *__to, __const__ void *__from, size_t __n); |
| |
| #define __HAVE_ARCH_MEMMOVE |
| extern void *memmove(void *__dest, __const__ void *__src, size_t __n); |
| |
| #define __HAVE_ARCH_MEMCHR |
| extern void *memchr(const void *__s, int __c, size_t __n); |
| |
| #define __HAVE_ARCH_STRLEN |
| extern size_t strlen(const char *); |
| |
| #endif /* __KERNEL__ */ |
| |
| #endif /* __ASM_SH_STRING_H */ |
