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Diffstat (limited to 'arch/blackfin/include/asm/string.h')
-rw-r--r--arch/blackfin/include/asm/string.h113
1 files changed, 4 insertions, 109 deletions
diff --git a/arch/blackfin/include/asm/string.h b/arch/blackfin/include/asm/string.h
index d7f0ccb418c3..423c099aa988 100644
--- a/arch/blackfin/include/asm/string.h
+++ b/arch/blackfin/include/asm/string.h
@@ -12,121 +12,16 @@
#ifdef __KERNEL__ /* only set these up for kernel code */
#define __HAVE_ARCH_STRCPY
-extern inline char *strcpy(char *dest, const char *src)
-{
- char *xdest = dest;
- char temp = 0;
-
- __asm__ __volatile__ (
- "1:"
- "%2 = B [%1++] (Z);"
- "B [%0++] = %2;"
- "CC = %2;"
- "if cc jump 1b (bp);"
- : "+&a" (dest), "+&a" (src), "=&d" (temp)
- :
- : "memory", "CC");
-
- return xdest;
-}
+extern char *strcpy(char *dest, const char *src);
#define __HAVE_ARCH_STRNCPY
-extern inline char *strncpy(char *dest, const char *src, size_t n)
-{
- char *xdest = dest;
- char temp = 0;
-
- if (n == 0)
- return xdest;
-
- __asm__ __volatile__ (
- "1:"
- "%3 = B [%1++] (Z);"
- "B [%0++] = %3;"
- "CC = %3;"
- "if ! cc jump 2f;"
- "%2 += -1;"
- "CC = %2 == 0;"
- "if ! cc jump 1b (bp);"
- "jump 4f;"
- "2:"
- /* if src is shorter than n, we need to null pad bytes now */
- "%3 = 0;"
- "3:"
- "%2 += -1;"
- "CC = %2 == 0;"
- "if cc jump 4f;"
- "B [%0++] = %3;"
- "jump 3b;"
- "4:"
- : "+&a" (dest), "+&a" (src), "+&da" (n), "=&d" (temp)
- :
- : "memory", "CC");
-
- return xdest;
-}
+extern char *strncpy(char *dest, const char *src, size_t n);
#define __HAVE_ARCH_STRCMP
-extern inline int strcmp(const char *cs, const char *ct)
-{
- /* need to use int's here so the char's in the assembly don't get
- * sign extended incorrectly when we don't want them to be
- */
- int __res1, __res2;
-
- __asm__ __volatile__ (
- "1:"
- "%2 = B[%0++] (Z);" /* get *cs */
- "%3 = B[%1++] (Z);" /* get *ct */
- "CC = %2 == %3;" /* compare a byte */
- "if ! cc jump 2f;" /* not equal, break out */
- "CC = %2;" /* at end of cs? */
- "if cc jump 1b (bp);" /* no, keep going */
- "jump.s 3f;" /* strings are equal */
- "2:"
- "%2 = %2 - %3;" /* *cs - *ct */
- "3:"
- : "+&a" (cs), "+&a" (ct), "=&d" (__res1), "=&d" (__res2)
- :
- : "memory", "CC");
-
- return __res1;
-}
+extern int strcmp(const char *cs, const char *ct);
#define __HAVE_ARCH_STRNCMP
-extern inline int strncmp(const char *cs, const char *ct, size_t count)
-{
- /* need to use int's here so the char's in the assembly don't get
- * sign extended incorrectly when we don't want them to be
- */
- int __res1, __res2;
-
- if (!count)
- return 0;
-
- __asm__ __volatile__ (
- "1:"
- "%3 = B[%0++] (Z);" /* get *cs */
- "%4 = B[%1++] (Z);" /* get *ct */
- "CC = %3 == %4;" /* compare a byte */
- "if ! cc jump 3f;" /* not equal, break out */
- "CC = %3;" /* at end of cs? */
- "if ! cc jump 4f;" /* yes, all done */
- "%2 += -1;" /* no, adjust count */
- "CC = %2 == 0;"
- "if ! cc jump 1b;" /* more to do, keep going */
- "2:"
- "%3 = 0;" /* strings are equal */
- "jump.s 4f;"
- "3:"
- "%3 = %3 - %4;" /* *cs - *ct */
- "4:"
- : "+&a" (cs), "+&a" (ct), "+&da" (count), "=&d" (__res1), "=&d" (__res2)
- :
- : "memory", "CC");
-
- return __res1;
-}
+extern int strncmp(const char *cs, const char *ct, size_t count);
#define __HAVE_ARCH_MEMSET
extern void *memset(void *s, int c, size_t count);