[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] Remove broken inline-asm string functions from Xen/x86. The
# HG changeset patch # User kaf24@xxxxxxxxxxxxxxxxxxxx # Node ID 1345b20cca565950c0209971a0a71d19498cc765 # Parent 187180382772582f075d0e0f9da23843e0c9e2dd Remove broken inline-asm string functions from Xen/x86. The generic implementations in string.c are quite sufficient. Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx> --- xen/include/asm-x86/string.h | 146 ------------------------------------------- 1 files changed, 146 deletions(-) diff -r 187180382772 -r 1345b20cca56 xen/include/asm-x86/string.h --- a/xen/include/asm-x86/string.h Tue May 23 16:23:10 2006 +0100 +++ b/xen/include/asm-x86/string.h Wed May 24 11:52:25 2006 +0100 @@ -2,152 +2,6 @@ #define __X86_STRING_H__ #include <xen/config.h> - -#define __HAVE_ARCH_STRCPY -static inline char *strcpy(char *dest, const char *src) -{ - long d0, d1, d2; - __asm__ __volatile__ ( - "1: lodsb \n" - " stosb \n" - " test %%al,%%al \n" - " jne 1b \n" - : "=&S" (d0), "=&D" (d1), "=&a" (d2) - : "0" (src), "1" (dest) : "memory" ); - return dest; -} - -#define __HAVE_ARCH_STRNCPY -static inline char *strncpy(char *dest, const char *src, size_t count) -{ - long d0, d1, d2, d3; - __asm__ __volatile__ ( - "1: dec %2 \n" - " js 2f \n" - " lodsb \n" - " stosb \n" - " test %%al,%%al \n" - " jne 1b \n" - " rep ; stosb \n" - "2: \n" - : "=&S" (d0), "=&D" (d1), "=&c" (d2), "=&a" (d3) - : "0" (src), "1" (dest), "2" (count) : "memory" ); - return dest; -} - -#define __HAVE_ARCH_STRCAT -static inline char *strcat(char *dest, const char *src) -{ - long d0, d1, d2, d3; - __asm__ __volatile__ ( - " repne ; scasb \n" - " dec %1 \n" - "1: lodsb \n" - " stosb \n" - " test %%al,%%al \n" - " jne 1b \n" - : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3) - : "0" (src), "1" (dest), "2" (0UL), "3" (0xffffffffUL) : "memory" ); - return dest; -} - -#define __HAVE_ARCH_STRNCAT -static inline char *strncat(char *dest, const char *src, size_t count) -{ - long d0, d1, d2, d3; - __asm__ __volatile__ ( - " repne ; scasb \n" - " dec %1 \n" - " mov %8,%3 \n" - "1: dec %3 \n" - " js 2f \n" - " lodsb \n" - " stosb \n" - " test %%al,%%al \n" - " jne 1b \n" - "2: xor %%eax,%%eax\n" - " stosb" - : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3) - : "0" (src), "1" (dest), "2" (0UL), "3" (0xffffffffUL), "g" (count) - : "memory" ); - return dest; -} - -#define __HAVE_ARCH_STRCMP -static inline int strcmp(const char *cs, const char *ct) -{ - long d0, d1; - register int __res; - __asm__ __volatile__ ( - "1: lodsb \n" - " scasb \n" - " jne 2f \n" - " test %%al,%%al \n" - " jne 1b \n" - " xor %%eax,%%eax\n" - " jmp 3f \n" - "2: sbb %%eax,%%eax\n" - " or $1,%%al \n" - "3: \n" - : "=a" (__res), "=&S" (d0), "=&D" (d1) - : "1" (cs), "2" (ct) ); - return __res; -} - -#define __HAVE_ARCH_STRNCMP -static inline int strncmp(const char *cs, const char *ct, size_t count) -{ - long d0, d1, d2; - register int __res; - __asm__ __volatile__ ( - "1: dec %3 \n" - " js 2f \n" - " lodsb \n" - " scasb \n" - " jne 3f \n" - " test %%al,%%al \n" - " jne 1b \n" - "2: xor %%eax,%%eax\n" - " jmp 4f \n" - "3: sbb %%eax,%%eax\n" - " or $1,%%al \n" - "4: \n" - : "=a" (__res), "=&S" (d0), "=&D" (d1), "=&c" (d2) - : "1" (cs), "2" (ct), "3" (count) ); - return __res; -} - -#define __HAVE_ARCH_STRCHR -static inline char *strchr(const char *s, int c) -{ - long d0; - register char *__res; - __asm__ __volatile__ ( - " mov %%al,%%ah \n" - "1: lodsb \n" - " cmp %%ah,%%al \n" - " je 2f \n" - " test %%al,%%al \n" - " jne 1b \n" - " mov $1,%1 \n" - "2: mov %1,%0 \n" - " dec %0 \n" - : "=a" (__res), "=&S" (d0) : "1" (s), "0" (c) ); - return __res; -} - -#define __HAVE_ARCH_STRLEN -static inline size_t strlen(const char *s) -{ - long d0; - register int __res; - __asm__ __volatile__ ( - " repne ; scasb \n" - " notl %0 \n" - " decl %0 \n" - : "=c" (__res), "=&D" (d0) : "1" (s), "a" (0), "0" (0xffffffffUL) ); - return __res; -} static inline void *__variable_memcpy(void *to, const void *from, size_t n) { _______________________________________________ Xen-changelog mailing list Xen-changelog@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-changelog
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