diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 05:20:03 -0400 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 05:20:03 -0400 |
commit | 96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42 (patch) | |
tree | d947a467aa2da3140279617bc4b9b101640d7bf4 /include/asm-x86/string_64.h | |
parent | 27bd0c955648646abf2a353a8371d28c37bcd982 (diff) |
i386/x86_64: move headers to include/asm-x86
Move the headers to include/asm-x86 and fixup the
header install make rules
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/string_64.h')
-rw-r--r-- | include/asm-x86/string_64.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/include/asm-x86/string_64.h b/include/asm-x86/string_64.h new file mode 100644 index 000000000000..e583da7918fb --- /dev/null +++ b/include/asm-x86/string_64.h | |||
@@ -0,0 +1,60 @@ | |||
1 | #ifndef _X86_64_STRING_H_ | ||
2 | #define _X86_64_STRING_H_ | ||
3 | |||
4 | #ifdef __KERNEL__ | ||
5 | |||
6 | /* Written 2002 by Andi Kleen */ | ||
7 | |||
8 | /* Only used for special circumstances. Stolen from i386/string.h */ | ||
9 | static __always_inline void * | ||
10 | __inline_memcpy(void * to, const void * from, size_t n) | ||
11 | { | ||
12 | unsigned long d0, d1, d2; | ||
13 | __asm__ __volatile__( | ||
14 | "rep ; movsl\n\t" | ||
15 | "testb $2,%b4\n\t" | ||
16 | "je 1f\n\t" | ||
17 | "movsw\n" | ||
18 | "1:\ttestb $1,%b4\n\t" | ||
19 | "je 2f\n\t" | ||
20 | "movsb\n" | ||
21 | "2:" | ||
22 | : "=&c" (d0), "=&D" (d1), "=&S" (d2) | ||
23 | :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from) | ||
24 | : "memory"); | ||
25 | return (to); | ||
26 | } | ||
27 | |||
28 | /* Even with __builtin_ the compiler may decide to use the out of line | ||
29 | function. */ | ||
30 | |||
31 | #define __HAVE_ARCH_MEMCPY 1 | ||
32 | #if (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __GNUC__ > 4 | ||
33 | extern void *memcpy(void *to, const void *from, size_t len); | ||
34 | #else | ||
35 | extern void *__memcpy(void *to, const void *from, size_t len); | ||
36 | #define memcpy(dst,src,len) \ | ||
37 | ({ size_t __len = (len); \ | ||
38 | void *__ret; \ | ||
39 | if (__builtin_constant_p(len) && __len >= 64) \ | ||
40 | __ret = __memcpy((dst),(src),__len); \ | ||
41 | else \ | ||
42 | __ret = __builtin_memcpy((dst),(src),__len); \ | ||
43 | __ret; }) | ||
44 | #endif | ||
45 | |||
46 | #define __HAVE_ARCH_MEMSET | ||
47 | void *memset(void *s, int c, size_t n); | ||
48 | |||
49 | #define __HAVE_ARCH_MEMMOVE | ||
50 | void * memmove(void * dest,const void *src,size_t count); | ||
51 | |||
52 | int memcmp(const void * cs,const void * ct,size_t count); | ||
53 | size_t strlen(const char * s); | ||
54 | char *strcpy(char * dest,const char *src); | ||
55 | char *strcat(char * dest, const char * src); | ||
56 | int strcmp(const char * cs,const char * ct); | ||
57 | |||
58 | #endif /* __KERNEL__ */ | ||
59 | |||
60 | #endif | ||