diff options
Diffstat (limited to 'include/asm-s390/string.h')
| -rw-r--r-- | include/asm-s390/string.h | 56 |
1 files changed, 31 insertions, 25 deletions
diff --git a/include/asm-s390/string.h b/include/asm-s390/string.h index 23a4c390489f..d074673a6d9b 100644 --- a/include/asm-s390/string.h +++ b/include/asm-s390/string.h | |||
| @@ -60,12 +60,13 @@ static inline void *memchr(const void * s, int c, size_t n) | |||
| 60 | register int r0 asm("0") = (char) c; | 60 | register int r0 asm("0") = (char) c; |
| 61 | const void *ret = s + n; | 61 | const void *ret = s + n; |
| 62 | 62 | ||
| 63 | asm volatile ("0: srst %0,%1\n" | 63 | asm volatile( |
| 64 | " jo 0b\n" | 64 | "0: srst %0,%1\n" |
| 65 | " jl 1f\n" | 65 | " jo 0b\n" |
| 66 | " la %0,0\n" | 66 | " jl 1f\n" |
| 67 | "1:" | 67 | " la %0,0\n" |
| 68 | : "+a" (ret), "+&a" (s) : "d" (r0) : "cc" ); | 68 | "1:" |
| 69 | : "+a" (ret), "+&a" (s) : "d" (r0) : "cc"); | ||
| 69 | return (void *) ret; | 70 | return (void *) ret; |
| 70 | } | 71 | } |
| 71 | 72 | ||
| @@ -74,9 +75,10 @@ static inline void *memscan(void *s, int c, size_t n) | |||
| 74 | register int r0 asm("0") = (char) c; | 75 | register int r0 asm("0") = (char) c; |
| 75 | const void *ret = s + n; | 76 | const void *ret = s + n; |
| 76 | 77 | ||
| 77 | asm volatile ("0: srst %0,%1\n" | 78 | asm volatile( |
| 78 | " jo 0b\n" | 79 | "0: srst %0,%1\n" |
| 79 | : "+a" (ret), "+&a" (s) : "d" (r0) : "cc" ); | 80 | " jo 0b\n" |
| 81 | : "+a" (ret), "+&a" (s) : "d" (r0) : "cc"); | ||
| 80 | return (void *) ret; | 82 | return (void *) ret; |
| 81 | } | 83 | } |
| 82 | 84 | ||
| @@ -86,12 +88,13 @@ static inline char *strcat(char *dst, const char *src) | |||
| 86 | unsigned long dummy; | 88 | unsigned long dummy; |
| 87 | char *ret = dst; | 89 | char *ret = dst; |
| 88 | 90 | ||
| 89 | asm volatile ("0: srst %0,%1\n" | 91 | asm volatile( |
| 90 | " jo 0b\n" | 92 | "0: srst %0,%1\n" |
| 91 | "1: mvst %0,%2\n" | 93 | " jo 0b\n" |
| 92 | " jo 1b" | 94 | "1: mvst %0,%2\n" |
| 93 | : "=&a" (dummy), "+a" (dst), "+a" (src) | 95 | " jo 1b" |
| 94 | : "d" (r0), "0" (0) : "cc", "memory" ); | 96 | : "=&a" (dummy), "+a" (dst), "+a" (src) |
| 97 | : "d" (r0), "0" (0) : "cc", "memory" ); | ||
| 95 | return ret; | 98 | return ret; |
| 96 | } | 99 | } |
| 97 | 100 | ||
| @@ -100,10 +103,11 @@ static inline char *strcpy(char *dst, const char *src) | |||
| 100 | register int r0 asm("0") = 0; | 103 | register int r0 asm("0") = 0; |
| 101 | char *ret = dst; | 104 | char *ret = dst; |
| 102 | 105 | ||
| 103 | asm volatile ("0: mvst %0,%1\n" | 106 | asm volatile( |
| 104 | " jo 0b" | 107 | "0: mvst %0,%1\n" |
| 105 | : "+&a" (dst), "+&a" (src) : "d" (r0) | 108 | " jo 0b" |
| 106 | : "cc", "memory" ); | 109 | : "+&a" (dst), "+&a" (src) : "d" (r0) |
| 110 | : "cc", "memory"); | ||
| 107 | return ret; | 111 | return ret; |
| 108 | } | 112 | } |
| 109 | 113 | ||
| @@ -112,9 +116,10 @@ static inline size_t strlen(const char *s) | |||
| 112 | register unsigned long r0 asm("0") = 0; | 116 | register unsigned long r0 asm("0") = 0; |
| 113 | const char *tmp = s; | 117 | const char *tmp = s; |
| 114 | 118 | ||
| 115 | asm volatile ("0: srst %0,%1\n" | 119 | asm volatile( |
| 116 | " jo 0b" | 120 | "0: srst %0,%1\n" |
| 117 | : "+d" (r0), "+a" (tmp) : : "cc" ); | 121 | " jo 0b" |
| 122 | : "+d" (r0), "+a" (tmp) : : "cc"); | ||
| 118 | return r0 - (unsigned long) s; | 123 | return r0 - (unsigned long) s; |
| 119 | } | 124 | } |
| 120 | 125 | ||
| @@ -124,9 +129,10 @@ static inline size_t strnlen(const char * s, size_t n) | |||
| 124 | const char *tmp = s; | 129 | const char *tmp = s; |
| 125 | const char *end = s + n; | 130 | const char *end = s + n; |
| 126 | 131 | ||
| 127 | asm volatile ("0: srst %0,%1\n" | 132 | asm volatile( |
| 128 | " jo 0b" | 133 | "0: srst %0,%1\n" |
| 129 | : "+a" (end), "+a" (tmp) : "d" (r0) : "cc" ); | 134 | " jo 0b" |
| 135 | : "+a" (end), "+a" (tmp) : "d" (r0) : "cc"); | ||
| 130 | return end - s; | 136 | return end - s; |
| 131 | } | 137 | } |
| 132 | 138 | ||
