1 files changed, 205 insertions, 0 deletions

diff --git a/include/asm-sparc/string_32.h b/include/asm-sparc/string_32.h
new file mode 100644
index 000000000000..6c5fddb7e6b5
--- /dev/null
+++ b/include/asm-sparc/string_32.h
@@ -0,0 +1,205 @@
+/*
+ * string.h: External definitions for optimized assembly string
+ *           routines for the Linux Kernel.
+ *
+ * Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ */
+
+#ifndef __SPARC_STRING_H__
+#define __SPARC_STRING_H__
+
+#include <asm/page.h>
+
+/* Really, userland/ksyms should not see any of this stuff. */
+
+#ifdef __KERNEL__
+
+extern void __memmove(void *,const void *,__kernel_size_t);
+extern __kernel_size_t __memcpy(void *,const void *,__kernel_size_t);
+extern __kernel_size_t __memset(void *,int,__kernel_size_t);
+
+#ifndef EXPORT_SYMTAB_STROPS
+
+/* First the mem*() things. */
+#define __HAVE_ARCH_MEMMOVE
+#undef memmove
+#define memmove(_to, _from, _n) \
+({ \
+        void *_t = (_to); \
+        __memmove(_t, (_from), (_n)); \
+        _t; \
+})
+
+#define __HAVE_ARCH_MEMCPY
+
+static inline void *__constant_memcpy(void *to, const void *from, __kernel_size_t n)
+{
+        extern void __copy_1page(void *, const void *);
+
+        if(n <= 32) {
+                __builtin_memcpy(to, from, n);
+        } else if (((unsigned int) to & 7) != 0) {
+                /* Destination is not aligned on the double-word boundary */
+                __memcpy(to, from, n);
+        } else {
+                switch(n) {
+                case PAGE_SIZE:
+                        __copy_1page(to, from);
+                        break;
+                default:
+                        __memcpy(to, from, n);
+                        break;
+                }
+        }
+        return to;
+}
+
+static inline void *__nonconstant_memcpy(void *to, const void *from, __kernel_size_t n)
+{
+        __memcpy(to, from, n);
+        return to;
+}
+
+#undef memcpy
+#define memcpy(t, f, n) \
+(__builtin_constant_p(n) ? \
+ __constant_memcpy((t),(f),(n)) : \
+ __nonconstant_memcpy((t),(f),(n)))
+
+#define __HAVE_ARCH_MEMSET
+
+static inline void *__constant_c_and_count_memset(void *s, char c, __kernel_size_t count)
+{
+        extern void bzero_1page(void *);
+        extern __kernel_size_t __bzero(void *, __kernel_size_t);
+
+        if(!c) {
+                if(count == PAGE_SIZE)
+                        bzero_1page(s);
+                else
+                        __bzero(s, count);
+        } else {
+                __memset(s, c, count);
+        }
+        return s;
+}
+
+static inline void *__constant_c_memset(void *s, char c, __kernel_size_t count)
+{
+        extern __kernel_size_t __bzero(void *, __kernel_size_t);
+
+        if(!c)
+                __bzero(s, count);
+        else
+                __memset(s, c, count);
+        return s;
+}
+
+static inline void *__nonconstant_memset(void *s, char c, __kernel_size_t count)
+{
+        __memset(s, c, count);
+        return s;
+}
+
+#undef memset
+#define memset(s, c, count) \
+(__builtin_constant_p(c) ? (__builtin_constant_p(count) ? \
+                            __constant_c_and_count_memset((s), (c), (count)) : \
+                            __constant_c_memset((s), (c), (count))) \
+                          : __nonconstant_memset((s), (c), (count)))
+
+#define __HAVE_ARCH_MEMSCAN
+
+#undef memscan
+#define memscan(__arg0, __char, __arg2)                                         \
+({                                                                              \
+        extern void *__memscan_zero(void *, size_t);                            \
+        extern void *__memscan_generic(void *, int, size_t);                    \
+        void *__retval, *__addr = (__arg0);                                     \
+        size_t __size = (__arg2);                                               \
+                                                                                \
+        if(__builtin_constant_p(__char) && !(__char))                           \
+                __retval = __memscan_zero(__addr, __size);                      \
+        else                                                                    \
+                __retval = __memscan_generic(__addr, (__char), __size);         \
+                                                                                \
+        __retval;                                                               \
+})
+
+#define __HAVE_ARCH_MEMCMP
+extern int memcmp(const void *,const void *,__kernel_size_t);
+
+/* Now the str*() stuff... */
+#define __HAVE_ARCH_STRLEN
+extern __kernel_size_t strlen(const char *);
+
+#define __HAVE_ARCH_STRNCMP
+
+extern int __strncmp(const char *, const char *, __kernel_size_t);
+
+static inline int __constant_strncmp(const char *src, const char *dest, __kernel_size_t count)
+{
+        register int retval;
+        switch(count) {
+        case 0: return 0;
+        case 1: return (src[0] - dest[0]);
+        case 2: retval = (src[0] - dest[0]);
+                if(!retval && src[0])
+                  retval = (src[1] - dest[1]);
+                return retval;
+        case 3: retval = (src[0] - dest[0]);
+                if(!retval && src[0]) {
+                  retval = (src[1] - dest[1]);
+                  if(!retval && src[1])
+                    retval = (src[2] - dest[2]);
+                }
+                return retval;
+        case 4: retval = (src[0] - dest[0]);
+                if(!retval && src[0]) {
+                  retval = (src[1] - dest[1]);
+                  if(!retval && src[1]) {
+                    retval = (src[2] - dest[2]);
+                    if (!retval && src[2])
+                      retval = (src[3] - dest[3]);
+                  }
+                }
+                return retval;
+        case 5: retval = (src[0] - dest[0]);
+                if(!retval && src[0]) {
+                  retval = (src[1] - dest[1]);
+                  if(!retval && src[1]) {
+                    retval = (src[2] - dest[2]);
+                    if (!retval && src[2]) {
+                      retval = (src[3] - dest[3]);
+                      if (!retval && src[3])
+                        retval = (src[4] - dest[4]);
+                    }
+                  }
+                }
+                return retval;
+        default:
+                retval = (src[0] - dest[0]);
+                if(!retval && src[0]) {
+                  retval = (src[1] - dest[1]);
+                  if(!retval && src[1]) {
+                    retval = (src[2] - dest[2]);
+                    if(!retval && src[2])
+                      retval = __strncmp(src+3,dest+3,count-3);
+                  }
+                }
+                return retval;
+        }
+}
+
+#undef strncmp
+#define strncmp(__arg0, __arg1, __arg2) \
+(__builtin_constant_p(__arg2) ? \
+ __constant_strncmp(__arg0, __arg1, __arg2) : \
+ __strncmp(__arg0, __arg1, __arg2))
+
+#endif /* !EXPORT_SYMTAB_STROPS */
+
+#endif /* __KERNEL__ */
+
+#endif /* !(__SPARC_STRING_H__) */