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Diffstat (limited to 'arch/m68knommu/include/asm/string.h')
-rw-r--r--arch/m68knommu/include/asm/string.h126
1 files changed, 126 insertions, 0 deletions
diff --git a/arch/m68knommu/include/asm/string.h b/arch/m68knommu/include/asm/string.h
new file mode 100644
index 00000000000..af09e17000f
--- /dev/null
+++ b/arch/m68knommu/include/asm/string.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_ */