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author | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 09:20:03 (GMT) |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 09:20:03 (GMT) |
commit | 96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42 (patch) | |
tree | d947a467aa2da3140279617bc4b9b101640d7bf4 /include/asm-x86/string_64.h | |
parent | 27bd0c955648646abf2a353a8371d28c37bcd982 (diff) | |
download | linux-fsl-qoriq-96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42.tar.xz |
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 0000000..e583da7 --- /dev/null +++ b/include/asm-x86/string_64.h @@ -0,0 +1,60 @@ +#ifndef _X86_64_STRING_H_ +#define _X86_64_STRING_H_ + +#ifdef __KERNEL__ + +/* Written 2002 by Andi Kleen */ + +/* Only used for special circumstances. Stolen from i386/string.h */ +static __always_inline void * +__inline_memcpy(void * to, const void * from, size_t n) +{ +unsigned long d0, d1, d2; +__asm__ __volatile__( + "rep ; movsl\n\t" + "testb $2,%b4\n\t" + "je 1f\n\t" + "movsw\n" + "1:\ttestb $1,%b4\n\t" + "je 2f\n\t" + "movsb\n" + "2:" + : "=&c" (d0), "=&D" (d1), "=&S" (d2) + :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from) + : "memory"); +return (to); +} + +/* Even with __builtin_ the compiler may decide to use the out of line + function. */ + +#define __HAVE_ARCH_MEMCPY 1 +#if (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __GNUC__ > 4 +extern void *memcpy(void *to, const void *from, size_t len); +#else +extern void *__memcpy(void *to, const void *from, size_t len); +#define memcpy(dst,src,len) \ + ({ size_t __len = (len); \ + void *__ret; \ + if (__builtin_constant_p(len) && __len >= 64) \ + __ret = __memcpy((dst),(src),__len); \ + else \ + __ret = __builtin_memcpy((dst),(src),__len); \ + __ret; }) +#endif + +#define __HAVE_ARCH_MEMSET +void *memset(void *s, int c, size_t n); + +#define __HAVE_ARCH_MEMMOVE +void * memmove(void * dest,const void *src,size_t count); + +int memcmp(const void * cs,const void * ct,size_t count); +size_t strlen(const char * s); +char *strcpy(char * dest,const char *src); +char *strcat(char * dest, const char * src); +int strcmp(const char * cs,const char * ct); + +#endif /* __KERNEL__ */ + +#endif |