diff options
Diffstat (limited to '')
| -rw-r--r-- | include/asm-sparc/string.h | 213 |
1 files changed, 8 insertions, 205 deletions
diff --git a/include/asm-sparc/string.h b/include/asm-sparc/string.h index 8d7c0dd4f299..14c04c7697a5 100644 --- a/include/asm-sparc/string.h +++ b/include/asm-sparc/string.h @@ -1,205 +1,8 @@ -/* - * 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__) */ +#ifndef ___ASM_SPARC_STRING_H +#define ___ASM_SPARC_STRING_H +#if defined(__sparc__) && defined(__arch64__) +#include <asm-sparc/string_64.h> +#else +#include <asm-sparc/string_32.h> +#endif +#endif |