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yaml
---
r: 89026
b: refs/heads/master
c: 953b2f1
h: refs/heads/master
v: v3
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Joe Perches authored and Ingo Molnar committed Apr 17, 2008
1 parent 014b225 commit bc731cc
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Showing 2 changed files with 34 additions and 34 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 06b0f574eafdd26d325ce5ab3c38522d0cdd7b7c
refs/heads/master: 953b2f1ed6f2642e58e7c5b8c1385d132f1b5685
66 changes: 33 additions & 33 deletions trunk/include/asm-x86/string_64.h
Original file line number Diff line number Diff line change
Expand Up @@ -3,26 +3,24 @@

#ifdef __KERNEL__

/* Written 2002 by Andi Kleen */
/* 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)
/* 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);
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
Expand All @@ -32,28 +30,30 @@ return (to);
#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; })
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);
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);
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__ */

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