Rev 1069 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
1 | jermar | 1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
||
1196 | cejka | 3 | * Copyright (C) 2006 Josef Cejka |
1 | jermar | 4 | * All rights reserved. |
5 | * |
||
6 | * Redistribution and use in source and binary forms, with or without |
||
7 | * modification, are permitted provided that the following conditions |
||
8 | * are met: |
||
9 | * |
||
10 | * - Redistributions of source code must retain the above copyright |
||
11 | * notice, this list of conditions and the following disclaimer. |
||
12 | * - Redistributions in binary form must reproduce the above copyright |
||
13 | * notice, this list of conditions and the following disclaimer in the |
||
14 | * documentation and/or other materials provided with the distribution. |
||
15 | * - The name of the author may not be used to endorse or promote products |
||
16 | * derived from this software without specific prior written permission. |
||
17 | * |
||
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
28 | */ |
||
29 | |||
30 | #include <putchar.h> |
||
31 | #include <print.h> |
||
32 | #include <synch/spinlock.h> |
||
40 | jermar | 33 | #include <arch/arg.h> |
115 | jermar | 34 | #include <arch/asm.h> |
228 | cejka | 35 | |
195 | vana | 36 | #include <arch.h> |
1 | jermar | 37 | |
623 | jermar | 38 | SPINLOCK_INITIALIZE(printflock); /**< printf spinlock */ |
1 | jermar | 39 | |
1196 | cejka | 40 | #define __PRINTF_FLAG_PREFIX 0x00000001 /* show prefixes 0x or 0*/ |
41 | #define __PRINTF_FLAG_SIGNED 0x00000002 /* signed / unsigned number */ |
||
42 | #define __PRINTF_FLAG_ZEROPADDED 0x00000004 /* print leading zeroes */ |
||
43 | #define __PRINTF_FLAG_LEFTALIGNED 0x00000010 /* align to left */ |
||
44 | #define __PRINTF_FLAG_SHOWPLUS 0x00000020 /* always show + sign */ |
||
45 | #define __PRINTF_FLAG_SPACESIGN 0x00000040 /* print space instead of plus */ |
||
46 | #define __PRINTF_FLAG_BIGCHARS 0x00000080 /* show big characters */ |
||
47 | #define __PRINTF_FLAG_NEGATIVE 0x00000100 /* number has - sign */ |
||
61 | decky | 48 | |
1196 | cejka | 49 | #define PRINT_NUMBER_BUFFER_SIZE (64+5) /* Buffer big enought for 64 bit number |
50 | * printed in base 2, sign, prefix and |
||
51 | * 0 to terminate string.. (last one is only for better testing |
||
52 | * end of buffer by zero-filling subroutine) |
||
53 | */ |
||
54 | typedef enum { |
||
55 | PrintfQualifierByte = 0, |
||
56 | PrintfQualifierShort, |
||
57 | PrintfQualifierInt, |
||
58 | PrintfQualifierLong, |
||
59 | PrintfQualifierLongLong, |
||
60 | PrintfQualifierNative, |
||
61 | PrintfQualifierPointer |
||
62 | } qualifier_t; |
||
63 | |||
64 | static char digits_small[] = "0123456789abcdef"; /* Small hexadecimal characters */ |
||
65 | static char digits_big[] = "0123456789ABCDEF"; /* Big hexadecimal characters */ |
||
66 | |||
67 | static inline int isdigit(int c) |
||
228 | cejka | 68 | { |
1196 | cejka | 69 | return ((c >= '0' )&&( c <= '9')); |
70 | } |
||
1069 | cejka | 71 | |
1196 | cejka | 72 | static __native strlen(const char *str) |
73 | { |
||
74 | __native counter = 0; |
||
75 | |||
76 | while (str[counter] != 0) { |
||
77 | counter++; |
||
78 | } |
||
79 | |||
80 | return counter; |
||
81 | } |
||
82 | |||
83 | /** Print one string without adding \n at end |
||
84 | * Dont use this function directly - printflock is not locked here |
||
85 | * */ |
||
86 | static int putstr(const char *str) |
||
87 | { |
||
88 | int count; |
||
1069 | cejka | 89 | if (str == NULL) { |
1196 | cejka | 90 | str = "(NULL)"; |
91 | } |
||
452 | decky | 92 | |
1196 | cejka | 93 | for (count = 0; str[count] != 0; count++) { |
94 | putchar(str[count]); |
||
95 | } |
||
96 | return count; |
||
452 | decky | 97 | } |
98 | |||
1196 | cejka | 99 | /** Print count characters from buffer to output |
452 | decky | 100 | * |
101 | */ |
||
1196 | cejka | 102 | static int putnchars(const char *buffer, __native count) |
452 | decky | 103 | { |
104 | int i; |
||
1196 | cejka | 105 | if (buffer == NULL) { |
106 | buffer = "(NULL)"; |
||
107 | count = 6; |
||
108 | } |
||
109 | |||
110 | for (i = 0; i < count; i++) { |
||
111 | putchar(buffer[i]); |
||
112 | } |
||
113 | |||
114 | return count; |
||
452 | decky | 115 | } |
116 | |||
1196 | cejka | 117 | /** Print one formatted character |
118 | * @param c character to print |
||
119 | * @param width |
||
120 | * @param flags |
||
121 | * @return number of printed characters or EOF |
||
122 | */ |
||
123 | static int print_char(char c, int width, __u64 flags) |
||
124 | { |
||
125 | int counter = 0; |
||
126 | |||
127 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
||
128 | while (--width > 0) { /* one space is consumed by character itself hence predecrement */ |
||
129 | /* FIXME: painful slow */ |
||
130 | putchar(' '); |
||
131 | ++counter; |
||
132 | } |
||
133 | } |
||
134 | |||
135 | putchar(c); |
||
136 | ++counter; |
||
452 | decky | 137 | |
1196 | cejka | 138 | while (--width > 0) { /* one space is consumed by character itself hence predecrement */ |
139 | putchar(' '); |
||
140 | ++counter; |
||
141 | } |
||
142 | |||
143 | return counter; |
||
144 | } |
||
145 | |||
146 | /** Print one string |
||
147 | * @param s string |
||
148 | * @param width |
||
149 | * @param precision |
||
150 | * @param flags |
||
151 | * @return number of printed characters or EOF |
||
152 | */ |
||
153 | |||
154 | static int print_string(char *s, int width, int precision, __u64 flags) |
||
155 | { |
||
156 | int counter = 0; |
||
157 | __native size; |
||
158 | |||
159 | if (s == NULL) { |
||
160 | return putstr("(NULL)"); |
||
161 | } |
||
162 | |||
163 | size = strlen(s); |
||
164 | |||
165 | /* print leading spaces */ |
||
166 | |||
167 | if (precision == 0) |
||
168 | precision = size; |
||
169 | |||
170 | width -= precision; |
||
171 | |||
172 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
||
173 | while (width-- > 0) { |
||
174 | putchar(' '); |
||
175 | counter++; |
||
176 | } |
||
177 | } |
||
178 | |||
179 | while (precision > size) { |
||
180 | precision--; |
||
181 | putchar(' '); |
||
182 | ++counter; |
||
183 | } |
||
184 | |||
185 | if (putnchars(s, precision) == EOF) { |
||
186 | return EOF; |
||
187 | } |
||
188 | |||
189 | counter += precision; |
||
190 | |||
191 | while (width-- > 0) { |
||
192 | putchar(' '); |
||
193 | ++counter; |
||
194 | } |
||
195 | |||
196 | return ++counter; |
||
197 | } |
||
198 | |||
199 | |||
452 | decky | 200 | /** Print number in given base |
201 | * |
||
202 | * Print significant digits of a number in given |
||
203 | * base. |
||
204 | * |
||
205 | * @param num Number to print. |
||
1196 | cejka | 206 | * @param width |
207 | * @param precision |
||
452 | decky | 208 | * @param base Base to print the number in (should |
209 | * be in range 2 .. 16). |
||
1196 | cejka | 210 | * @param flags output modifiers |
211 | * @return number of written characters or EOF |
||
452 | decky | 212 | * |
213 | */ |
||
1196 | cejka | 214 | static int print_number(__u64 num, int width, int precision, int base , __u64 flags) |
452 | decky | 215 | { |
1196 | cejka | 216 | char *digits = digits_small; |
217 | char d[PRINT_NUMBER_BUFFER_SIZE]; /* this is good enough even for base == 2, prefix and sign */ |
||
218 | char *ptr = &d[PRINT_NUMBER_BUFFER_SIZE - 1]; |
||
219 | int size = 0; |
||
220 | int written = 0; |
||
221 | char sgn; |
||
452 | decky | 222 | |
1196 | cejka | 223 | if (flags & __PRINTF_FLAG_BIGCHARS) |
224 | digits = digits_big; |
||
452 | decky | 225 | |
1196 | cejka | 226 | *ptr-- = 0; /* Put zero at end of string */ |
227 | |||
228 | if (num == 0) { |
||
229 | *ptr-- = '0'; |
||
230 | size++; |
||
231 | } else { |
||
232 | do { |
||
233 | *ptr-- = digits[num % base]; |
||
234 | size++; |
||
235 | } while (num /= base); |
||
236 | } |
||
237 | |||
238 | /* Collect sum of all prefixes/signs/... to calculate padding and leading zeroes */ |
||
239 | if (flags & __PRINTF_FLAG_PREFIX) { |
||
240 | switch(base) { |
||
241 | case 2: /* Binary formating is not standard, but usefull */ |
||
242 | size += 2; |
||
243 | break; |
||
244 | case 8: |
||
245 | size++; |
||
246 | break; |
||
247 | case 16: |
||
248 | size += 2; |
||
249 | break; |
||
250 | } |
||
251 | } |
||
252 | |||
253 | sgn = 0; |
||
254 | if (flags & __PRINTF_FLAG_SIGNED) { |
||
255 | if (flags & __PRINTF_FLAG_NEGATIVE) { |
||
256 | sgn = '-'; |
||
257 | size++; |
||
258 | } else if (flags & __PRINTF_FLAG_SHOWPLUS) { |
||
259 | sgn = '+'; |
||
260 | size++; |
||
261 | } else if (flags & __PRINTF_FLAG_SPACESIGN) { |
||
262 | sgn = ' '; |
||
263 | size++; |
||
264 | } |
||
265 | } |
||
266 | |||
267 | if (flags & __PRINTF_FLAG_LEFTALIGNED) { |
||
268 | flags &= ~__PRINTF_FLAG_ZEROPADDED; |
||
269 | } |
||
270 | |||
271 | /* if number is leftaligned or precision is specified then zeropadding is ignored */ |
||
272 | if (flags & __PRINTF_FLAG_ZEROPADDED) { |
||
273 | if ((precision == 0) && (width > size)) { |
||
274 | precision = width - size; |
||
275 | } |
||
276 | } |
||
277 | |||
278 | /* print leading spaces */ |
||
279 | if (size > precision) /* We must print whole number not only a part */ |
||
280 | precision = size; |
||
281 | |||
282 | width -= precision; |
||
283 | |||
284 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
||
285 | while (width-- > 0) { |
||
286 | putchar(' '); |
||
287 | written++; |
||
288 | } |
||
289 | } |
||
290 | |||
291 | /* print sign */ |
||
292 | if (sgn) { |
||
293 | putchar(sgn); |
||
294 | written++; |
||
295 | } |
||
296 | |||
297 | /* print prefix */ |
||
298 | |||
299 | if (flags & __PRINTF_FLAG_PREFIX) { |
||
300 | switch(base) { |
||
301 | case 2: /* Binary formating is not standard, but usefull */ |
||
302 | putchar('0'); |
||
303 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
||
304 | putchar('B'); |
||
305 | } else { |
||
306 | putchar('b'); |
||
307 | } |
||
308 | written += 2; |
||
309 | break; |
||
310 | case 8: |
||
311 | putchar('o'); |
||
312 | written++; |
||
313 | break; |
||
314 | case 16: |
||
315 | putchar('0'); |
||
316 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
||
317 | putchar('X'); |
||
318 | } else { |
||
319 | putchar('x'); |
||
320 | } |
||
321 | written += 2; |
||
322 | break; |
||
323 | } |
||
324 | } |
||
325 | |||
326 | /* print leading zeroes */ |
||
327 | precision -= size; |
||
328 | while (precision-- > 0) { |
||
329 | putchar('0'); |
||
330 | written++; |
||
331 | } |
||
332 | |||
333 | |||
334 | /* print number itself */ |
||
335 | |||
336 | written += putstr(++ptr); |
||
337 | |||
338 | /* print ending spaces */ |
||
339 | |||
340 | while (width-- > 0) { |
||
341 | putchar(' '); |
||
342 | written++; |
||
343 | } |
||
344 | |||
345 | return written; |
||
452 | decky | 346 | } |
347 | |||
348 | |||
266 | cejka | 349 | |
61 | decky | 350 | /** General formatted text print |
351 | * |
||
352 | * Print text formatted according the fmt parameter |
||
353 | * and variant arguments. Each formatting directive |
||
405 | jermar | 354 | * begins with \% (percentage) character and one of the |
61 | decky | 355 | * following character: |
356 | * |
||
405 | jermar | 357 | * \% Prints the percentage character. |
358 | * |
||
66 | jermar | 359 | * s The next variant argument is treated as char* |
61 | decky | 360 | * and printed as a NULL terminated string. |
405 | jermar | 361 | * |
66 | jermar | 362 | * c The next variant argument is treated as a single char. |
405 | jermar | 363 | * |
77 | jermar | 364 | * p The next variant argument is treated as a maximum |
365 | * bit-width integer with respect to architecture |
||
366 | * and printed in full hexadecimal width. |
||
405 | jermar | 367 | * |
77 | jermar | 368 | * P As with 'p', but '0x' is prefixed. |
405 | jermar | 369 | * |
77 | jermar | 370 | * q The next variant argument is treated as a 64b integer |
371 | * and printed in full hexadecimal width. |
||
405 | jermar | 372 | * |
77 | jermar | 373 | * Q As with 'q', but '0x' is prefixed. |
405 | jermar | 374 | * |
66 | jermar | 375 | * l The next variant argument is treated as a 32b integer |
61 | decky | 376 | * and printed in full hexadecimal width. |
405 | jermar | 377 | * |
61 | decky | 378 | * L As with 'l', but '0x' is prefixed. |
405 | jermar | 379 | * |
66 | jermar | 380 | * w The next variant argument is treated as a 16b integer |
61 | decky | 381 | * and printed in full hexadecimal width. |
405 | jermar | 382 | * |
61 | decky | 383 | * W As with 'w', but '0x' is prefixed. |
405 | jermar | 384 | * |
66 | jermar | 385 | * b The next variant argument is treated as a 8b integer |
61 | decky | 386 | * and printed in full hexadecimal width. |
405 | jermar | 387 | * |
388 | * B As with 'b', but '0x' is prefixed. |
||
389 | * |
||
66 | jermar | 390 | * d The next variant argument is treated as integer |
61 | decky | 391 | * and printed in standard decimal format (only significant |
392 | * digits). |
||
405 | jermar | 393 | * |
66 | jermar | 394 | * x The next variant argument is treated as integer |
61 | decky | 395 | * and printed in standard hexadecimal format (only significant |
396 | * digits). |
||
405 | jermar | 397 | * |
61 | decky | 398 | * X As with 'x', but '0x' is prefixed. |
405 | jermar | 399 | * |
61 | decky | 400 | * All other characters from fmt except the formatting directives |
401 | * are printed in verbatim. |
||
402 | * |
||
403 | * @param fmt Formatting NULL terminated string. |
||
1 | jermar | 404 | */ |
1196 | cejka | 405 | int printf(const char *fmt, ...) |
1 | jermar | 406 | { |
1196 | cejka | 407 | int irqpri; |
408 | int i = 0, j = 0; /* i is index of currently processed char from fmt, j is index to the first not printed nonformating character */ |
||
409 | int end; |
||
410 | int counter; /* counter of printed characters */ |
||
411 | int retval; /* used to store return values from called functions */ |
||
40 | jermar | 412 | va_list ap; |
1196 | cejka | 413 | char c; |
414 | qualifier_t qualifier; /* type of argument */ |
||
415 | int base; /* base in which will be parameter (numbers only) printed */ |
||
416 | __u64 number; /* argument value */ |
||
417 | __native size; /* byte size of integer parameter */ |
||
418 | int width, precision; |
||
419 | __u64 flags; |
||
264 | cejka | 420 | |
1196 | cejka | 421 | counter = 0; |
422 | |||
40 | jermar | 423 | va_start(ap, fmt); |
1196 | cejka | 424 | |
413 | jermar | 425 | irqpri = interrupts_disable(); |
1 | jermar | 426 | spinlock_lock(&printflock); |
40 | jermar | 427 | |
1196 | cejka | 428 | |
429 | while ((c = fmt[i])) { |
||
430 | /* control character */ |
||
431 | if (c == '%' ) { |
||
432 | /* print common characters if any processed */ |
||
433 | if (i > j) { |
||
434 | if ((retval = putnchars(&fmt[j], (__native)(i - j))) == EOF) { /* error */ |
||
435 | counter = -counter; |
||
436 | goto out; |
||
437 | } |
||
438 | counter += retval; |
||
439 | } |
||
440 | |||
441 | j = i; |
||
442 | /* parse modifiers */ |
||
443 | flags = 0; |
||
444 | end = 0; |
||
445 | |||
446 | do { |
||
447 | ++i; |
||
448 | switch (c = fmt[i]) { |
||
449 | case '#': flags |= __PRINTF_FLAG_PREFIX; break; |
||
450 | case '-': flags |= __PRINTF_FLAG_LEFTALIGNED; break; |
||
451 | case '+': flags |= __PRINTF_FLAG_SHOWPLUS; break; |
||
452 | case ' ': flags |= __PRINTF_FLAG_SPACESIGN; break; |
||
453 | case '0': flags |= __PRINTF_FLAG_ZEROPADDED; break; |
||
454 | default: end = 1; |
||
455 | }; |
||
456 | |||
457 | } while (end == 0); |
||
458 | |||
459 | /* width & '*' operator */ |
||
460 | width = 0; |
||
461 | if (isdigit(fmt[i])) { |
||
462 | while (isdigit(fmt[i])) { |
||
463 | width *= 10; |
||
464 | width += fmt[i++] - '0'; |
||
465 | } |
||
466 | } else if (fmt[i] == '*') { |
||
467 | /* get width value from argument list*/ |
||
468 | i++; |
||
469 | width = (int)va_arg(ap, int); |
||
470 | if (width < 0) { |
||
471 | /* negative width means to set '-' flag */ |
||
472 | width *= -1; |
||
473 | flags |= __PRINTF_FLAG_LEFTALIGNED; |
||
474 | } |
||
475 | } |
||
476 | |||
477 | /* precision and '*' operator */ |
||
478 | precision = 0; |
||
479 | if (fmt[i] == '.') { |
||
480 | ++i; |
||
481 | if (isdigit(fmt[i])) { |
||
482 | while (isdigit(fmt[i])) { |
||
483 | precision *= 10; |
||
484 | precision += fmt[i++] - '0'; |
||
485 | } |
||
486 | } else if (fmt[i] == '*') { |
||
487 | /* get precision value from argument list*/ |
||
488 | i++; |
||
489 | precision = (int)va_arg(ap, int); |
||
490 | if (precision < 0) { |
||
491 | /* negative precision means to ignore it */ |
||
492 | precision = 0; |
||
493 | } |
||
494 | } |
||
495 | } |
||
1 | jermar | 496 | |
1196 | cejka | 497 | switch (fmt[i++]) { |
498 | /** TODO: unimplemented qualifiers: |
||
499 | * t ptrdiff_t - ISO C 99 |
||
500 | */ |
||
501 | case 'h': /* char or short */ |
||
502 | qualifier = PrintfQualifierShort; |
||
503 | if (fmt[i] == 'h') { |
||
504 | i++; |
||
505 | qualifier = PrintfQualifierByte; |
||
506 | } |
||
507 | break; |
||
508 | case 'l': /* long or long long*/ |
||
509 | qualifier = PrintfQualifierLong; |
||
510 | if (fmt[i] == 'l') { |
||
511 | i++; |
||
512 | qualifier = PrintfQualifierLongLong; |
||
513 | } |
||
514 | break; |
||
515 | case 'z': /* __native */ |
||
516 | qualifier = PrintfQualifierNative; |
||
517 | break; |
||
518 | default: |
||
519 | qualifier = PrintfQualifierInt; /* default type */ |
||
520 | --i; |
||
521 | } |
||
522 | |||
523 | base = 10; |
||
1 | jermar | 524 | |
1196 | cejka | 525 | switch (c = fmt[i]) { |
1 | jermar | 526 | |
1196 | cejka | 527 | /* |
528 | * String and character conversions. |
||
529 | */ |
||
530 | case 's': |
||
531 | if ((retval = print_string(va_arg(ap, char*), width, precision, flags)) == EOF) { |
||
532 | counter = -counter; |
||
533 | goto out; |
||
534 | }; |
||
535 | |||
536 | counter += retval; |
||
537 | j = i + 1; |
||
538 | goto next_char; |
||
539 | case 'c': |
||
540 | c = va_arg(ap, unsigned int); |
||
541 | if ((retval = print_char(c, width, flags )) == EOF) { |
||
542 | counter = -counter; |
||
543 | goto out; |
||
544 | }; |
||
545 | |||
546 | counter += retval; |
||
547 | j = i + 1; |
||
548 | goto next_char; |
||
1 | jermar | 549 | |
1196 | cejka | 550 | /* |
551 | * Integer values |
||
552 | */ |
||
553 | case 'P': /* pointer */ |
||
554 | flags |= __PRINTF_FLAG_BIGCHARS; |
||
555 | case 'p': |
||
556 | flags |= __PRINTF_FLAG_PREFIX; |
||
557 | base = 16; |
||
558 | qualifier = PrintfQualifierPointer; |
||
559 | break; |
||
560 | case 'b': |
||
561 | base = 2; |
||
562 | break; |
||
563 | case 'o': |
||
564 | base = 8; |
||
565 | break; |
||
566 | case 'd': |
||
567 | case 'i': |
||
568 | flags |= __PRINTF_FLAG_SIGNED; |
||
569 | case 'u': |
||
570 | break; |
||
571 | case 'X': |
||
572 | flags |= __PRINTF_FLAG_BIGCHARS; |
||
573 | case 'x': |
||
574 | base = 16; |
||
575 | break; |
||
576 | /* percentile itself */ |
||
577 | case '%': |
||
578 | j = i; |
||
579 | goto next_char; |
||
580 | /* |
||
581 | * Bad formatting. |
||
582 | */ |
||
583 | default: |
||
584 | /* Unknown format |
||
585 | * now, the j is index of '%' so we will |
||
586 | * print whole bad format sequence |
||
587 | */ |
||
588 | goto next_char; |
||
589 | } |
||
590 | |||
591 | |||
592 | /* Print integers */ |
||
593 | /* print number */ |
||
594 | switch (qualifier) { |
||
595 | case PrintfQualifierByte: |
||
596 | size = sizeof(unsigned char); |
||
597 | number = (__u64)va_arg(ap, unsigned int); |
||
598 | break; |
||
599 | case PrintfQualifierShort: |
||
600 | size = sizeof(unsigned short); |
||
601 | number = (__u64)va_arg(ap, unsigned int); |
||
602 | break; |
||
603 | case PrintfQualifierInt: |
||
604 | size = sizeof(unsigned int); |
||
605 | number = (__u64)va_arg(ap, unsigned int); |
||
606 | break; |
||
607 | case PrintfQualifierLong: |
||
608 | size = sizeof(unsigned long); |
||
609 | number = (__u64)va_arg(ap, unsigned long); |
||
610 | break; |
||
611 | case PrintfQualifierLongLong: |
||
612 | size = sizeof(unsigned long long); |
||
613 | number = (__u64)va_arg(ap, unsigned long long); |
||
614 | break; |
||
615 | case PrintfQualifierPointer: |
||
616 | size = sizeof(void *); |
||
617 | number = (__u64)(unsigned long)va_arg(ap, void *); |
||
618 | break; |
||
619 | case PrintfQualifierNative: |
||
620 | size = sizeof(__native); |
||
621 | number = (__u64)va_arg(ap, __native); |
||
622 | break; |
||
623 | default: /* Unknown qualifier */ |
||
624 | counter = -counter; |
||
625 | goto out; |
||
626 | |||
627 | } |
||
628 | |||
629 | if (flags & __PRINTF_FLAG_SIGNED) { |
||
630 | if (number & (0x1 << (size*8 - 1))) { |
||
631 | flags |= __PRINTF_FLAG_NEGATIVE; |
||
632 | |||
633 | if (size == sizeof(__u64)) { |
||
634 | number = -((__s64)number); |
||
635 | } else { |
||
636 | number = ~number; |
||
637 | number &= (~((0xFFFFFFFFFFFFFFFFll) << (size * 8))); |
||
638 | number++; |
||
639 | } |
||
640 | } |
||
641 | } |
||
1 | jermar | 642 | |
1196 | cejka | 643 | if ((retval = print_number(number, width, precision, base, flags)) == EOF ) { |
644 | counter = -counter; |
||
645 | goto out; |
||
646 | }; |
||
77 | jermar | 647 | |
1196 | cejka | 648 | counter += retval; |
649 | j = i + 1; |
||
650 | } |
||
651 | next_char: |
||
652 | |||
653 | ++i; |
||
654 | } |
||
674 | cejka | 655 | |
1196 | cejka | 656 | if (i > j) { |
657 | if ((retval = putnchars(&fmt[j], (__native)(i - j))) == EOF) { /* error */ |
||
658 | counter = -counter; |
||
659 | goto out; |
||
1 | jermar | 660 | } |
1196 | cejka | 661 | counter += retval; |
1 | jermar | 662 | } |
663 | out: |
||
664 | spinlock_unlock(&printflock); |
||
413 | jermar | 665 | interrupts_restore(irqpri); |
40 | jermar | 666 | |
667 | va_end(ap); |
||
1196 | cejka | 668 | return counter; |
1 | jermar | 669 | } |
1196 | cejka | 670 |