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1da177e4 LT |
1 | /* $Id: string.h,v 1.20 2001/09/27 04:36:24 kanoj Exp $ |
2 | * string.h: External definitions for optimized assembly string | |
3 | * routines for the Linux Kernel. | |
4 | * | |
5 | * Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu) | |
6 | * Copyright (C) 1996,1997,1999 Jakub Jelinek (jakub@redhat.com) | |
7 | */ | |
8 | ||
9 | #ifndef __SPARC64_STRING_H__ | |
10 | #define __SPARC64_STRING_H__ | |
11 | ||
12 | /* Really, userland/ksyms should not see any of this stuff. */ | |
13 | ||
14 | #ifdef __KERNEL__ | |
15 | ||
16 | #include <asm/asi.h> | |
17 | ||
18 | extern void *__memset(void *,int,__kernel_size_t); | |
19 | ||
20 | #ifndef EXPORT_SYMTAB_STROPS | |
21 | ||
22 | /* First the mem*() things. */ | |
23 | #define __HAVE_ARCH_MEMMOVE | |
24 | extern void *memmove(void *, const void *, __kernel_size_t); | |
25 | ||
26 | #define __HAVE_ARCH_MEMCPY | |
27 | extern void *memcpy(void *, const void *, __kernel_size_t); | |
28 | ||
29 | #define __HAVE_ARCH_MEMSET | |
30 | extern void *__builtin_memset(void *,int,__kernel_size_t); | |
31 | ||
32 | static inline void *__constant_memset(void *s, int c, __kernel_size_t count) | |
33 | { | |
34 | extern __kernel_size_t __bzero(void *, __kernel_size_t); | |
35 | ||
36 | if (!c) { | |
37 | __bzero(s, count); | |
38 | return s; | |
39 | } else | |
40 | return __memset(s, c, count); | |
41 | } | |
42 | ||
43 | #undef memset | |
44 | #define memset(s, c, count) \ | |
45 | ((__builtin_constant_p(count) && (count) <= 32) ? \ | |
46 | __builtin_memset((s), (c), (count)) : \ | |
47 | (__builtin_constant_p(c) ? \ | |
48 | __constant_memset((s), (c), (count)) : \ | |
49 | __memset((s), (c), (count)))) | |
50 | ||
51 | #define __HAVE_ARCH_MEMSCAN | |
52 | ||
53 | #undef memscan | |
54 | #define memscan(__arg0, __char, __arg2) \ | |
55 | ({ \ | |
56 | extern void *__memscan_zero(void *, size_t); \ | |
57 | extern void *__memscan_generic(void *, int, size_t); \ | |
58 | void *__retval, *__addr = (__arg0); \ | |
59 | size_t __size = (__arg2); \ | |
60 | \ | |
61 | if(__builtin_constant_p(__char) && !(__char)) \ | |
62 | __retval = __memscan_zero(__addr, __size); \ | |
63 | else \ | |
64 | __retval = __memscan_generic(__addr, (__char), __size); \ | |
65 | \ | |
66 | __retval; \ | |
67 | }) | |
68 | ||
69 | #define __HAVE_ARCH_MEMCMP | |
70 | extern int memcmp(const void *,const void *,__kernel_size_t); | |
71 | ||
72 | /* Now the str*() stuff... */ | |
73 | #define __HAVE_ARCH_STRLEN | |
74 | extern __kernel_size_t strlen(const char *); | |
75 | ||
76 | #define __HAVE_ARCH_STRNCMP | |
77 | extern int strncmp(const char *, const char *, __kernel_size_t); | |
78 | ||
79 | #endif /* !EXPORT_SYMTAB_STROPS */ | |
80 | ||
81 | #endif /* __KERNEL__ */ | |
82 | ||
83 | #endif /* !(__SPARC64_STRING_H__) */ |