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#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_ */
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