1 files changed, 126 insertions, 0 deletions

diff --git a/include/asm-m68knommu/string.h b/include/asm-m68knommu/string.h
new file mode 100644
index 000000000000..af09e17000fc
--- /dev/null
+++ b/include/asm-m68knommu/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_ */