diff options
Diffstat (limited to 'arch/m68k/include/asm/string_no.h')
-rw-r--r-- | arch/m68k/include/asm/string_no.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/string_no.h b/arch/m68k/include/asm/string_no.h new file mode 100644 index 000000000000..af09e17000fc --- /dev/null +++ b/arch/m68k/include/asm/string_no.h @@ -0,0 +1,126 @@ +#ifndef _M68KNOMMU_STRING_H_ +#define _M68KNOMMU_STRING_H_ + +#ifdef __KERNEL__ /* only set these up for kernel code */ + +#include <asm/setup.h> +#include <asm/page.h> + +#define __HAVE_ARCH_STRCPY +static inline char * strcpy(char * dest,const char *src) +{ + char *xdest = dest; + + __asm__ __volatile__ + ("1:\tmoveb %1@+,%0@+\n\t" + "jne 1b" + : "=a" (dest), "=a" (src) + : "0" (dest), "1" (src) : "memory"); + return xdest; +} + +#define __HAVE_ARCH_STRNCPY +static inline char * strncpy(char *dest, const char *src, size_t n) +{ + char *xdest = dest; + + if (n == 0) + return xdest; + + __asm__ __volatile__ + ("1:\tmoveb %1@+,%0@+\n\t" + "jeq 2f\n\t" + "subql #1,%2\n\t" + "jne 1b\n\t" + "2:" + : "=a" (dest), "=a" (src), "=d" (n) + : "0" (dest), "1" (src), "2" (n) + : "memory"); + return xdest; +} + + +#ifndef CONFIG_COLDFIRE + +#define __HAVE_ARCH_STRCMP +static inline int strcmp(const char * cs,const char * ct) +{ + char __res; + + __asm__ + ("1:\tmoveb %0@+,%2\n\t" /* get *cs */ + "cmpb %1@+,%2\n\t" /* compare a byte */ + "jne 2f\n\t" /* not equal, break out */ + "tstb %2\n\t" /* at end of cs? */ + "jne 1b\n\t" /* no, keep going */ + "jra 3f\n\t" /* strings are equal */ + "2:\tsubb %1@-,%2\n\t" /* *cs - *ct */ + "3:" + : "=a" (cs), "=a" (ct), "=d" (__res) + : "0" (cs), "1" (ct)); + + return __res; +} + +#define __HAVE_ARCH_STRNCMP +static inline int strncmp(const char * cs,const char * ct,size_t count) +{ + char __res; + + if (!count) + return 0; + __asm__ + ("1:\tmovb %0@+,%3\n\t" /* get *cs */ + "cmpb %1@+,%3\n\t" /* compare a byte */ + "jne 3f\n\t" /* not equal, break out */ + "tstb %3\n\t" /* at end of cs? */ + "jeq 4f\n\t" /* yes, all done */ + "subql #1,%2\n\t" /* no, adjust count */ + "jne 1b\n\t" /* more to do, keep going */ + "2:\tmoveq #0,%3\n\t" /* strings are equal */ + "jra 4f\n\t" + "3:\tsubb %1@-,%3\n\t" /* *cs - *ct */ + "4:" + : "=a" (cs), "=a" (ct), "=d" (count), "=d" (__res) + : "0" (cs), "1" (ct), "2" (count)); + return __res; +} + +#endif /* CONFIG_COLDFIRE */ + +#define __HAVE_ARCH_MEMSET +extern void * memset(void * s, int c, size_t count); + +#define __HAVE_ARCH_MEMCPY +extern void * memcpy(void *d, const void *s, size_t count); + +#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 /* _M68K_STRING_H_ */ |