b2a3372138
With modern GCC, we get warnings such as:
cmd/jffs2.c: In function 'mtdparts_init':
arch/sh/include/asm/string.h:110:38:
warning: array subscript is above array bounds [-Warray-bounds]
: "0" (__cs), "1" (__ct), "r" (__cs+__n)
~~~~^~~~
This results in a small size reduction as well.
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
134 lines
3.1 KiB
C
134 lines
3.1 KiB
C
#ifndef __ASM_SH_STRING_H
|
|
#define __ASM_SH_STRING_H
|
|
|
|
/*
|
|
* Copyright (C) 1999 Niibe Yutaka
|
|
* But consider these trivial functions to be public domain.
|
|
*
|
|
* from linux kernel code.
|
|
*/
|
|
|
|
#ifdef __KERNEL__ /* only set these up for kernel code */
|
|
|
|
#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;
|
|
}
|
|
|
|
#undef __HAVE_ARCH_STRNCMP
|
|
extern int strncmp(const char *__cs, const char *__ct, size_t __n);
|
|
|
|
#undef __HAVE_ARCH_MEMSET
|
|
extern void *memset(void *__s, int __c, size_t __count);
|
|
|
|
#undef __HAVE_ARCH_MEMCPY
|
|
extern void *memcpy(void *__to, __const__ void *__from, size_t __n);
|
|
|
|
#undef __HAVE_ARCH_MEMMOVE
|
|
extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
|
|
|
|
#undef __HAVE_ARCH_MEMCHR
|
|
extern void *memchr(const void *__s, int __c, size_t __n);
|
|
|
|
#undef __HAVE_ARCH_STRLEN
|
|
extern size_t strlen(const char *);
|
|
|
|
/* arch/sh/lib/strcasecmp.c */
|
|
extern int strcasecmp(const char *, const char *);
|
|
|
|
#else /* KERNEL */
|
|
|
|
/*
|
|
* let user libraries deal with these,
|
|
* IMHO the kernel has no place defining these functions for user apps
|
|
*/
|
|
|
|
#define __HAVE_ARCH_STRCPY 1
|
|
#define __HAVE_ARCH_STRNCPY 1
|
|
#define __HAVE_ARCH_STRCAT 1
|
|
#define __HAVE_ARCH_STRNCAT 1
|
|
#define __HAVE_ARCH_STRCMP 1
|
|
#define __HAVE_ARCH_STRNCMP 1
|
|
#define __HAVE_ARCH_STRNICMP 1
|
|
#define __HAVE_ARCH_STRCHR 1
|
|
#define __HAVE_ARCH_STRRCHR 1
|
|
#define __HAVE_ARCH_STRSTR 1
|
|
#define __HAVE_ARCH_STRLEN 1
|
|
#define __HAVE_ARCH_STRNLEN 1
|
|
#define __HAVE_ARCH_MEMSET 1
|
|
#define __HAVE_ARCH_MEMCPY 1
|
|
#define __HAVE_ARCH_MEMMOVE 1
|
|
#define __HAVE_ARCH_MEMSCAN 1
|
|
#define __HAVE_ARCH_MEMCMP 1
|
|
#define __HAVE_ARCH_MEMCHR 1
|
|
#define __HAVE_ARCH_STRTOK 1
|
|
|
|
#endif /* KERNEL */
|
|
#endif /* __ASM_SH_STRING_H */
|