forked from ~ljy/RK356X_SDK_RELEASE
kernel/arch/s390/lib/string.c
.. .. @@ -43,11 +43,13 @@ 43 43 * 44 44 * returns the length of @s 45 45 */ 46 46 47 size_t strlen(const char *s) 47 48 { 48 49 return __strend(s) - s; 49 50 } 50 51 EXPORT_SYMBOL(strlen); 52 51 53 52 54 /** 53 55 * strnlen - Find the length of a length-limited string .. .. @@ -56,11 +58,13 @@ 56 58 * 57 59 * returns the minimum of the length of @s and @n 58 60 */ 61 59 62 size_t strnlen(const char *s, size_t n) 60 63 { 61 64 return __strnend(s, n) - s; 62 65 } 63 66 EXPORT_SYMBOL(strnlen); 67 64 68 65 69 /** 66 70 * strcpy - Copy a %NUL terminated string .. .. @@ -69,6 +73,7 @@ 69 73 * 70 74 * returns a pointer to @dest 71 75 */ 76 72 77 char *strcpy(char *dest, const char *src) 73 78 { 74 79 register int r0 asm("0") = 0; .. .. @@ -81,6 +86,7 @@ 81 86 return ret; 82 87 } 83 88 EXPORT_SYMBOL(strcpy); 89 84 90 85 91 /** 86 92 * strlcpy - Copy a %NUL terminated string into a sized buffer .. .. @@ -93,6 +99,7 @@ 93 99 * of course, the buffer size is zero). It does not pad 94 100 * out the result like strncpy() does. 95 101 */ 102 96 103 size_t strlcpy(char *dest, const char *src, size_t size) 97 104 { 98 105 size_t ret = __strend(src) - src; .. .. @@ -105,6 +112,7 @@ 105 112 return ret; 106 113 } 107 114 EXPORT_SYMBOL(strlcpy); 115 108 116 109 117 /** 110 118 * strncpy - Copy a length-limited, %NUL-terminated string .. .. @@ -115,6 +123,7 @@ 115 123 * The result is not %NUL-terminated if the source exceeds 116 124 * @n bytes. 117 125 */ 126 118 127 char *strncpy(char *dest, const char *src, size_t n) 119 128 { 120 129 size_t len = __strnend(src, n) - src; .. .. @@ -123,6 +132,7 @@ 123 132 return dest; 124 133 } 125 134 EXPORT_SYMBOL(strncpy); 135 126 136 127 137 /** 128 138 * strcat - Append one %NUL-terminated string to another .. .. @@ -131,6 +141,7 @@ 131 141 * 132 142 * returns a pointer to @dest 133 143 */ 144 134 145 char *strcat(char *dest, const char *src) 135 146 { 136 147 register int r0 asm("0") = 0; .. .. @@ -146,6 +157,7 @@ 146 157 return ret; 147 158 } 148 159 EXPORT_SYMBOL(strcat); 160 149 161 150 162 /** 151 163 * strlcat - Append a length-limited, %NUL-terminated string to another .. .. @@ -153,6 +165,7 @@ 153 165 * @src: The string to append to it 154 166 * @n: The size of the destination buffer. 155 167 */ 168 156 169 size_t strlcat(char *dest, const char *src, size_t n) 157 170 { 158 171 size_t dsize = __strend(dest) - dest; .. .. @@ -170,6 +183,7 @@ 170 183 return res; 171 184 } 172 185 EXPORT_SYMBOL(strlcat); 186 173 187 174 188 /** 175 189 * strncat - Append a length-limited, %NUL-terminated string to another .. .. @@ -182,6 +196,7 @@ 182 196 * Note that in contrast to strncpy, strncat ensures the result is 183 197 * terminated. 184 198 */ 199 185 200 char *strncat(char *dest, const char *src, size_t n) 186 201 { 187 202 size_t len = __strnend(src, n) - src; .. .. @@ -192,6 +207,7 @@ 192 207 return dest; 193 208 } 194 209 EXPORT_SYMBOL(strncat); 210 195 211 196 212 /** 197 213 * strcmp - Compare two strings .. .. @@ -202,6 +218,7 @@ 202 218 * < 0 if @s1 is less than @s2 203 219 * > 0 if @s1 is greater than @s2 204 220 */ 221 205 222 int strcmp(const char *s1, const char *s2) 206 223 { 207 224 register int r0 asm("0") = 0; .. .. @@ -219,12 +236,14 @@ 219 236 return ret; 220 237 } 221 238 EXPORT_SYMBOL(strcmp); 239 222 240 223 241 /** 224 242 * strrchr - Find the last occurrence of a character in a string 225 243 * @s: The string to be searched 226 244 * @c: The character to search for 227 245 */ 246 228 247 char *strrchr(const char *s, int c) 229 248 { 230 249 ssize_t len = __strend(s) - s; .. .. @@ -236,6 +255,7 @@ 236 255 return NULL; 237 256 } 238 257 EXPORT_SYMBOL(strrchr); 258 239 259 240 260 static inline int clcle(const char *s1, unsigned long l1, 241 261 const char *s2, unsigned long l2) .. .. @@ -260,6 +280,7 @@ 260 280 * @s1: The string to be searched 261 281 * @s2: The string to search for 262 282 */ 283 263 284 char *strstr(const char *s1, const char *s2) 264 285 { 265 286 int l1, l2; .. .. @@ -279,6 +300,7 @@ 279 300 return NULL; 280 301 } 281 302 EXPORT_SYMBOL(strstr); 303 282 304 283 305 /** 284 306 * memchr - Find a character in an area of memory. .. .. @@ -289,6 +311,7 @@ 289 311 * returns the address of the first occurrence of @c, or %NULL 290 312 * if @c is not found 291 313 */ 314 292 315 void *memchr(const void *s, int c, size_t n) 293 316 { 294 317 register int r0 asm("0") = (char) c; .. .. @@ -303,13 +326,15 @@ 303 326 return (void *) ret; 304 327 } 305 328 EXPORT_SYMBOL(memchr); 329 306 330 307 331 /** 308 332 * memcmp - Compare two areas of memory 309 333 * @s1: One area of memory 310 334 * @s2: Another area of memory 311 335 312 336 */ 337 313 338 int memcmp(const void *s1, const void *s2, size_t n) 314 339 { 315 340 int ret; .. .. @@ -320,6 +345,7 @@ 320 345 return ret; 321 346 } 322 347 EXPORT_SYMBOL(memcmp); 348 323 349 324 350 /** 325 351 * memscan - Find a character in an area of memory. .. .. @@ -330,6 +356,7 @@ 330 356 * returns the address of the first occurrence of @c, or 1 byte past 331 357 * the area if @c is not found 332 358 */ 359 333 360 void *memscan(void *s, int c, size_t n) 334 361 { 335 362 register int r0 asm("0") = (char) c; .. .. @@ -341,3 +368,4 @@ 341 368 return (void *) ret; 342 369 } 343 370 EXPORT_SYMBOL(memscan); 371
