Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1/*
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 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
7 */
8
9#ifndef __SPARC_STRING_H__
10#define __SPARC_STRING_H__
11
12#include <asm/page.h>
13
14/* Really, userland/ksyms should not see any of this stuff. */
15
16#ifdef __KERNEL__
17
18extern void __memmove(void *,const void *,__kernel_size_t);
19
20#ifndef EXPORT_SYMTAB_STROPS
21
22/* First the mem*() things. */
23#define __HAVE_ARCH_MEMMOVE
24#undef memmove
25#define memmove(_to, _from, _n) \
26({ \
27 void *_t = (_to); \
28 __memmove(_t, (_from), (_n)); \
29 _t; \
30})
31
32#define __HAVE_ARCH_MEMCPY
33#define memcpy(t, f, n) __builtin_memcpy(t, f, n)
34
35#define __HAVE_ARCH_MEMSET
36#define memset(s, c, count) __builtin_memset(s, c, count)
37
38#define __HAVE_ARCH_MEMSCAN
39
40#undef memscan
41#define memscan(__arg0, __char, __arg2) \
42({ \
43 extern void *__memscan_zero(void *, size_t); \
44 extern void *__memscan_generic(void *, int, size_t); \
45 void *__retval, *__addr = (__arg0); \
46 size_t __size = (__arg2); \
47 \
48 if(__builtin_constant_p(__char) && !(__char)) \
49 __retval = __memscan_zero(__addr, __size); \
50 else \
51 __retval = __memscan_generic(__addr, (__char), __size); \
52 \
53 __retval; \
54})
55
56#define __HAVE_ARCH_MEMCMP
57extern int memcmp(const void *,const void *,__kernel_size_t);
58
59/* Now the str*() stuff... */
60#define __HAVE_ARCH_STRLEN
61extern __kernel_size_t strlen(const char *);
62
63#define __HAVE_ARCH_STRNCMP
64extern int strncmp(const char *, const char *, __kernel_size_t);
65
66#endif /* !EXPORT_SYMTAB_STROPS */
67
68#endif /* __KERNEL__ */
69
70#endif /* !(__SPARC_STRING_H__) */