Linux Kernel  3.7.1
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string_64.h
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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 ([email protected])
6  * Copyright (C) 1996,1997,1999 Jakub Jelinek ([email protected])
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 #ifndef EXPORT_SYMTAB_STROPS
19 
20 /* First the mem*() things. */
21 #define __HAVE_ARCH_MEMMOVE
22 extern void *memmove(void *, const void *, __kernel_size_t);
23 
24 #define __HAVE_ARCH_MEMCPY
25 #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
26 
27 #define __HAVE_ARCH_MEMSET
28 #define memset(s, c, count) __builtin_memset(s, c, count)
29 
30 #define __HAVE_ARCH_MEMSCAN
31 
32 #undef memscan
33 #define memscan(__arg0, __char, __arg2) \
34 ({ \
35  extern void *__memscan_zero(void *, size_t); \
36  extern void *__memscan_generic(void *, int, size_t); \
37  void *__retval, *__addr = (__arg0); \
38  size_t __size = (__arg2); \
39  \
40  if(__builtin_constant_p(__char) && !(__char)) \
41  __retval = __memscan_zero(__addr, __size); \
42  else \
43  __retval = __memscan_generic(__addr, (__char), __size); \
44  \
45  __retval; \
46 })
47 
48 #define __HAVE_ARCH_MEMCMP
49 extern int memcmp(const void *,const void *,__kernel_size_t);
50 
51 /* Now the str*() stuff... */
52 #define __HAVE_ARCH_STRLEN
53 extern __kernel_size_t strlen(const char *);
54 
55 #define __HAVE_ARCH_STRNCMP
56 extern int strncmp(const char *, const char *, __kernel_size_t);
57 
58 #endif /* !EXPORT_SYMTAB_STROPS */
59 
60 #endif /* __KERNEL__ */
61 
62 #endif /* !(__SPARC64_STRING_H__) */