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| 1 | /* |
1 | /* |
| 2 | * Copyright (C) 2001-2004 Jakub Jermar |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
| 3 | * Copyright (C) 2006 Josef Cejka |
3 | * Copyright (C) 2006 Josef Cejka |
| 4 | * All rights reserved. |
4 | * All rights reserved. |
| 5 | * |
5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
8 | * are met: |
| 9 | * |
9 | * |
| 10 | * - Redistributions of source code must retain the above copyright |
10 | * - Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * - Redistributions in binary form must reproduce the above copyright |
12 | * - Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
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 |
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. |
16 | * derived from this software without specific prior written permission. |
| 17 | * |
17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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 |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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 |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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 |
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. |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 28 | */ |
28 | */ |
| 29 | 29 | ||
| 30 | #include <putchar.h> |
30 | #include <putchar.h> |
| 31 | #include <print.h> |
31 | #include <print.h> |
| 32 | #include <synch/spinlock.h> |
32 | #include <synch/spinlock.h> |
| 33 | #include <arch/arg.h> |
33 | #include <arch/arg.h> |
| 34 | #include <arch/asm.h> |
34 | #include <arch/asm.h> |
| 35 | 35 | ||
| 36 | #include <arch.h> |
36 | #include <arch.h> |
| 37 | 37 | ||
| 38 | SPINLOCK_INITIALIZE(printflock); /**< printf spinlock */ |
38 | SPINLOCK_INITIALIZE(printflock); /**< printf spinlock */ |
| 39 | 39 | ||
| 40 | #define __PRINTF_FLAG_PREFIX 0x00000001 /* show prefixes 0x or 0*/ |
40 | #define __PRINTF_FLAG_PREFIX 0x00000001 /* show prefixes 0x or 0 */ |
| 41 | #define __PRINTF_FLAG_SIGNED 0x00000002 /* signed / unsigned number */ |
41 | #define __PRINTF_FLAG_SIGNED 0x00000002 /* signed / unsigned number */ |
| 42 | #define __PRINTF_FLAG_ZEROPADDED 0x00000004 /* print leading zeroes */ |
42 | #define __PRINTF_FLAG_ZEROPADDED 0x00000004 /* print leading zeroes */ |
| 43 | #define __PRINTF_FLAG_LEFTALIGNED 0x00000010 /* align to left */ |
43 | #define __PRINTF_FLAG_LEFTALIGNED 0x00000010 /* align to left */ |
| 44 | #define __PRINTF_FLAG_SHOWPLUS 0x00000020 /* always show + sign */ |
44 | #define __PRINTF_FLAG_SHOWPLUS 0x00000020 /* always show + sign */ |
| 45 | #define __PRINTF_FLAG_SPACESIGN 0x00000040 /* print space instead of plus */ |
45 | #define __PRINTF_FLAG_SPACESIGN 0x00000040 /* print space instead of plus */ |
| 46 | #define __PRINTF_FLAG_BIGCHARS 0x00000080 /* show big characters */ |
46 | #define __PRINTF_FLAG_BIGCHARS 0x00000080 /* show big characters */ |
| 47 | #define __PRINTF_FLAG_NEGATIVE 0x00000100 /* number has - sign */ |
47 | #define __PRINTF_FLAG_NEGATIVE 0x00000100 /* number has - sign */ |
| 48 | 48 | ||
| 49 | #define PRINT_NUMBER_BUFFER_SIZE (64+5) /* Buffer big enought for 64 bit number |
49 | #define PRINT_NUMBER_BUFFER_SIZE (64+5) /* Buffer big enought for 64 bit number |
| 50 | * printed in base 2, sign, prefix and |
50 | * printed in base 2, sign, prefix and |
| 51 | * 0 to terminate string.. (last one is only for better testing |
51 | * 0 to terminate string.. (last one is only for better testing |
| 52 | * end of buffer by zero-filling subroutine) |
52 | * end of buffer by zero-filling subroutine) |
| 53 | */ |
53 | */ |
| 54 | typedef enum { |
54 | typedef enum { |
| 55 | PrintfQualifierByte = 0, |
55 | PrintfQualifierByte = 0, |
| 56 | PrintfQualifierShort, |
56 | PrintfQualifierShort, |
| 57 | PrintfQualifierInt, |
57 | PrintfQualifierInt, |
| 58 | PrintfQualifierLong, |
58 | PrintfQualifierLong, |
| 59 | PrintfQualifierLongLong, |
59 | PrintfQualifierLongLong, |
| 60 | PrintfQualifierNative, |
60 | PrintfQualifierNative, |
| 61 | PrintfQualifierPointer |
61 | PrintfQualifierPointer |
| 62 | } qualifier_t; |
62 | } qualifier_t; |
| 63 | 63 | ||
| 64 | static char digits_small[] = "0123456789abcdef"; /* Small hexadecimal characters */ |
64 | static char digits_small[] = "0123456789abcdef"; /* Small hexadecimal characters */ |
| 65 | static char digits_big[] = "0123456789ABCDEF"; /* Big hexadecimal characters */ |
65 | static char digits_big[] = "0123456789ABCDEF"; /* Big hexadecimal characters */ |
| 66 | 66 | ||
| 67 | static inline int isdigit(int c) |
67 | static inline int isdigit(int c) |
| 68 | { |
68 | { |
| 69 | return ((c >= '0' )&&( c <= '9')); |
69 | return ((c >= '0' )&&( c <= '9')); |
| 70 | } |
70 | } |
| 71 | 71 | ||
| 72 | static __native strlen(const char *str) |
72 | static __native strlen(const char *str) |
| 73 | { |
73 | { |
| 74 | __native counter = 0; |
74 | __native counter = 0; |
| 75 | 75 | ||
| 76 | while (str[counter] != 0) { |
76 | while (str[counter] != 0) { |
| 77 | counter++; |
77 | counter++; |
| 78 | } |
78 | } |
| 79 | 79 | ||
| 80 | return counter; |
80 | return counter; |
| 81 | } |
81 | } |
| 82 | 82 | ||
| 83 | /** Print one string without adding \n at end |
83 | /** Print one string without appending '\n' to the end |
| - | 84 | * |
|
| 84 | * Dont use this function directly - printflock is not locked here |
85 | * Dont use this function directly - printflock is not locked here |
| - | 86 | * |
|
| 85 | * */ |
87 | */ |
| 86 | static int putstr(const char *str) |
88 | static int putstr(const char *str) |
| 87 | { |
89 | { |
| 88 | int count; |
90 | int count; |
| 89 | if (str == NULL) { |
91 | if (str == NULL) { |
| 90 | str = "(NULL)"; |
92 | str = "(NULL)"; |
| 91 | } |
93 | } |
| 92 | 94 | ||
| 93 | for (count = 0; str[count] != 0; count++) { |
95 | for (count = 0; str[count] != 0; count++) { |
| 94 | putchar(str[count]); |
96 | putchar(str[count]); |
| 95 | } |
97 | } |
| 96 | return count; |
98 | return count; |
| 97 | } |
99 | } |
| 98 | 100 | ||
| 99 | /** Print count characters from buffer to output |
101 | /** Print count characters from buffer to output |
| 100 | * |
102 | * |
| 101 | */ |
103 | */ |
| 102 | static int putnchars(const char *buffer, __native count) |
104 | static int putnchars(const char *buffer, __native count) |
| 103 | { |
105 | { |
| 104 | int i; |
106 | int i; |
| 105 | if (buffer == NULL) { |
107 | if (buffer == NULL) { |
| 106 | buffer = "(NULL)"; |
108 | buffer = "(NULL)"; |
| 107 | count = 6; |
109 | count = 6; |
| 108 | } |
110 | } |
| 109 | 111 | ||
| 110 | for (i = 0; i < count; i++) { |
112 | for (i = 0; i < count; i++) { |
| 111 | putchar(buffer[i]); |
113 | putchar(buffer[i]); |
| 112 | } |
114 | } |
| 113 | 115 | ||
| 114 | return count; |
116 | return count; |
| 115 | } |
117 | } |
| 116 | 118 | ||
| 117 | /** Print one formatted character |
119 | /** Print one formatted character |
| - | 120 | * |
|
| 118 | * @param c character to print |
121 | * @param c character to print |
| 119 | * @param width |
122 | * @param width |
| 120 | * @param flags |
123 | * @param flags |
| 121 | * @return number of printed characters or EOF |
124 | * @return number of printed characters or EOF |
| 122 | */ |
125 | */ |
| 123 | static int print_char(char c, int width, __u64 flags) |
126 | static int print_char(char c, int width, __u64 flags) |
| 124 | { |
127 | { |
| 125 | int counter = 0; |
128 | int counter = 0; |
| 126 | 129 | ||
| 127 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
130 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
| 128 | while (--width > 0) { /* one space is consumed by character itself hence predecrement */ |
131 | while (--width > 0) { /* one space is consumed by character itself hence the predecrement */ |
| 129 | /* FIXME: painful slow */ |
132 | /* FIXME: painfully slow */ |
| 130 | putchar(' '); |
133 | putchar(' '); |
| 131 | ++counter; |
134 | ++counter; |
| 132 | } |
135 | } |
| 133 | } |
136 | } |
| 134 | 137 | ||
| 135 | putchar(c); |
138 | putchar(c); |
| 136 | ++counter; |
139 | ++counter; |
| 137 | 140 | ||
| 138 | while (--width > 0) { /* one space is consumed by character itself hence predecrement */ |
141 | while (--width > 0) { /* one space is consumed by character itself hence the predecrement */ |
| 139 | putchar(' '); |
142 | putchar(' '); |
| 140 | ++counter; |
143 | ++counter; |
| 141 | } |
144 | } |
| 142 | 145 | ||
| 143 | return counter; |
146 | return counter; |
| 144 | } |
147 | } |
| 145 | 148 | ||
| 146 | /** Print one string |
149 | /** Print one string |
| 147 | * @param s string |
150 | * @param s string |
| 148 | * @param width |
151 | * @param width |
| 149 | * @param precision |
152 | * @param precision |
| 150 | * @param flags |
153 | * @param flags |
| 151 | * @return number of printed characters or EOF |
154 | * @return number of printed characters or EOF |
| 152 | */ |
155 | */ |
| 153 | - | ||
| 154 | static int print_string(char *s, int width, int precision, __u64 flags) |
156 | static int print_string(char *s, int width, int precision, __u64 flags) |
| 155 | { |
157 | { |
| 156 | int counter = 0; |
158 | int counter = 0; |
| 157 | __native size; |
159 | __native size; |
| 158 | 160 | ||
| 159 | if (s == NULL) { |
161 | if (s == NULL) { |
| 160 | return putstr("(NULL)"); |
162 | return putstr("(NULL)"); |
| 161 | } |
163 | } |
| 162 | 164 | ||
| 163 | size = strlen(s); |
165 | size = strlen(s); |
| 164 | 166 | ||
| 165 | /* print leading spaces */ |
167 | /* print leading spaces */ |
| 166 | 168 | ||
| 167 | if (precision == 0) |
169 | if (precision == 0) |
| 168 | precision = size; |
170 | precision = size; |
| 169 | 171 | ||
| 170 | width -= precision; |
172 | width -= precision; |
| 171 | 173 | ||
| 172 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
174 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
| 173 | while (width-- > 0) { |
175 | while (width-- > 0) { |
| 174 | putchar(' '); |
176 | putchar(' '); |
| 175 | counter++; |
177 | counter++; |
| 176 | } |
178 | } |
| 177 | } |
179 | } |
| 178 | 180 | ||
| 179 | while (precision > size) { |
181 | while (precision > size) { |
| 180 | precision--; |
182 | precision--; |
| 181 | putchar(' '); |
183 | putchar(' '); |
| 182 | ++counter; |
184 | ++counter; |
| 183 | } |
185 | } |
| 184 | 186 | ||
| 185 | if (putnchars(s, precision) == EOF) { |
187 | if (putnchars(s, precision) == EOF) { |
| 186 | return EOF; |
188 | return EOF; |
| 187 | } |
189 | } |
| 188 | 190 | ||
| 189 | counter += precision; |
191 | counter += precision; |
| 190 | 192 | ||
| 191 | while (width-- > 0) { |
193 | while (width-- > 0) { |
| 192 | putchar(' '); |
194 | putchar(' '); |
| 193 | ++counter; |
195 | ++counter; |
| 194 | } |
196 | } |
| 195 | 197 | ||
| 196 | return ++counter; |
198 | return ++counter; |
| 197 | } |
199 | } |
| 198 | 200 | ||
| 199 | 201 | ||
| 200 | /** Print number in given base |
202 | /** Print number in given base |
| 201 | * |
203 | * |
| 202 | * Print significant digits of a number in given |
204 | * Print significant digits of a number in given |
| 203 | * base. |
205 | * base. |
| 204 | * |
206 | * |
| 205 | * @param num Number to print. |
207 | * @param num Number to print. |
| 206 | * @param width |
208 | * @param width |
| 207 | * @param precision |
209 | * @param precision |
| 208 | * @param base Base to print the number in (should |
210 | * @param base Base to print the number in (should |
| 209 | * be in range 2 .. 16). |
211 | * be in range 2 .. 16). |
| 210 | * @param flags output modifiers |
212 | * @param flags output modifiers |
| 211 | * @return number of written characters or negative value on fail. |
213 | * @return number of written characters or negative value on fail. |
| 212 | */ |
214 | */ |
| 213 | static int print_number(__u64 num, int width, int precision, int base , __u64 flags) |
215 | static int print_number(__u64 num, int width, int precision, int base , __u64 flags) |
| 214 | { |
216 | { |
| 215 | char *digits = digits_small; |
217 | char *digits = digits_small; |
| 216 | char d[PRINT_NUMBER_BUFFER_SIZE]; /* this is good enough even for base == 2, prefix and sign */ |
218 | char d[PRINT_NUMBER_BUFFER_SIZE]; /* this is good enough even for base == 2, prefix and sign */ |
| 217 | char *ptr = &d[PRINT_NUMBER_BUFFER_SIZE - 1]; |
219 | char *ptr = &d[PRINT_NUMBER_BUFFER_SIZE - 1]; |
| 218 | int size = 0; |
220 | int size = 0; |
| 219 | int written = 0; |
221 | int written = 0; |
| 220 | char sgn; |
222 | char sgn; |
| 221 | 223 | ||
| 222 | if (flags & __PRINTF_FLAG_BIGCHARS) |
224 | if (flags & __PRINTF_FLAG_BIGCHARS) |
| 223 | digits = digits_big; |
225 | digits = digits_big; |
| 224 | 226 | ||
| 225 | *ptr-- = 0; /* Put zero at end of string */ |
227 | *ptr-- = 0; /* Put zero at end of string */ |
| 226 | 228 | ||
| 227 | if (num == 0) { |
229 | if (num == 0) { |
| 228 | *ptr-- = '0'; |
230 | *ptr-- = '0'; |
| 229 | size++; |
231 | size++; |
| 230 | } else { |
232 | } else { |
| 231 | do { |
233 | do { |
| 232 | *ptr-- = digits[num % base]; |
234 | *ptr-- = digits[num % base]; |
| 233 | size++; |
235 | size++; |
| 234 | } while (num /= base); |
236 | } while (num /= base); |
| 235 | } |
237 | } |
| 236 | 238 | ||
| 237 | /* Collect sum of all prefixes/signs/... to calculate padding and leading zeroes */ |
239 | /* Collect sum of all prefixes/signs/... to calculate padding and leading zeroes */ |
| 238 | if (flags & __PRINTF_FLAG_PREFIX) { |
240 | if (flags & __PRINTF_FLAG_PREFIX) { |
| 239 | switch(base) { |
241 | switch(base) { |
| 240 | case 2: /* Binary formating is not standard, but usefull */ |
242 | case 2: /* Binary formating is not standard, but usefull */ |
| 241 | size += 2; |
243 | size += 2; |
| 242 | break; |
244 | break; |
| 243 | case 8: |
245 | case 8: |
| 244 | size++; |
246 | size++; |
| 245 | break; |
247 | break; |
| 246 | case 16: |
248 | case 16: |
| 247 | size += 2; |
249 | size += 2; |
| 248 | break; |
250 | break; |
| 249 | } |
251 | } |
| 250 | } |
252 | } |
| 251 | 253 | ||
| 252 | sgn = 0; |
254 | sgn = 0; |
| 253 | if (flags & __PRINTF_FLAG_SIGNED) { |
255 | if (flags & __PRINTF_FLAG_SIGNED) { |
| 254 | if (flags & __PRINTF_FLAG_NEGATIVE) { |
256 | if (flags & __PRINTF_FLAG_NEGATIVE) { |
| 255 | sgn = '-'; |
257 | sgn = '-'; |
| 256 | size++; |
258 | size++; |
| 257 | } else if (flags & __PRINTF_FLAG_SHOWPLUS) { |
259 | } else if (flags & __PRINTF_FLAG_SHOWPLUS) { |
| 258 | sgn = '+'; |
260 | sgn = '+'; |
| 259 | size++; |
261 | size++; |
| 260 | } else if (flags & __PRINTF_FLAG_SPACESIGN) { |
262 | } else if (flags & __PRINTF_FLAG_SPACESIGN) { |
| 261 | sgn = ' '; |
263 | sgn = ' '; |
| 262 | size++; |
264 | size++; |
| 263 | } |
265 | } |
| 264 | } |
266 | } |
| 265 | 267 | ||
| 266 | if (flags & __PRINTF_FLAG_LEFTALIGNED) { |
268 | if (flags & __PRINTF_FLAG_LEFTALIGNED) { |
| 267 | flags &= ~__PRINTF_FLAG_ZEROPADDED; |
269 | flags &= ~__PRINTF_FLAG_ZEROPADDED; |
| 268 | } |
270 | } |
| 269 | 271 | ||
| 270 | /* if number is leftaligned or precision is specified then zeropadding is ignored */ |
272 | /* if number is leftaligned or precision is specified then zeropadding is ignored */ |
| 271 | if (flags & __PRINTF_FLAG_ZEROPADDED) { |
273 | if (flags & __PRINTF_FLAG_ZEROPADDED) { |
| 272 | if ((precision == 0) && (width > size)) { |
274 | if ((precision == 0) && (width > size)) { |
| 273 | precision = width - size; |
275 | precision = width - size; |
| 274 | } |
276 | } |
| 275 | } |
277 | } |
| 276 | 278 | ||
| 277 | /* print leading spaces */ |
279 | /* print leading spaces */ |
| 278 | if (size > precision) /* We must print whole number not only a part */ |
280 | if (size > precision) /* We must print the whole number, not only a part */ |
| 279 | precision = size; |
281 | precision = size; |
| 280 | 282 | ||
| 281 | width -= precision; |
283 | width -= precision; |
| 282 | 284 | ||
| 283 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
285 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
| 284 | while (width-- > 0) { |
286 | while (width-- > 0) { |
| 285 | putchar(' '); |
287 | putchar(' '); |
| 286 | written++; |
288 | written++; |
| 287 | } |
289 | } |
| 288 | } |
290 | } |
| 289 | 291 | ||
| 290 | /* print sign */ |
292 | /* print sign */ |
| 291 | if (sgn) { |
293 | if (sgn) { |
| 292 | putchar(sgn); |
294 | putchar(sgn); |
| 293 | written++; |
295 | written++; |
| 294 | } |
296 | } |
| 295 | 297 | ||
| 296 | /* print prefix */ |
298 | /* print prefix */ |
| 297 | 299 | ||
| 298 | if (flags & __PRINTF_FLAG_PREFIX) { |
300 | if (flags & __PRINTF_FLAG_PREFIX) { |
| 299 | switch(base) { |
301 | switch(base) { |
| 300 | case 2: /* Binary formating is not standard, but usefull */ |
302 | case 2: /* Binary formating is not standard, but usefull */ |
| 301 | putchar('0'); |
303 | putchar('0'); |
| 302 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
304 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
| 303 | putchar('B'); |
305 | putchar('B'); |
| 304 | } else { |
306 | } else { |
| 305 | putchar('b'); |
307 | putchar('b'); |
| 306 | } |
308 | } |
| 307 | written += 2; |
309 | written += 2; |
| 308 | break; |
310 | break; |
| 309 | case 8: |
311 | case 8: |
| 310 | putchar('o'); |
312 | putchar('o'); |
| 311 | written++; |
313 | written++; |
| 312 | break; |
314 | break; |
| 313 | case 16: |
315 | case 16: |
| 314 | putchar('0'); |
316 | putchar('0'); |
| 315 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
317 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
| 316 | putchar('X'); |
318 | putchar('X'); |
| 317 | } else { |
319 | } else { |
| 318 | putchar('x'); |
320 | putchar('x'); |
| 319 | } |
321 | } |
| 320 | written += 2; |
322 | written += 2; |
| 321 | break; |
323 | break; |
| 322 | } |
324 | } |
| 323 | } |
325 | } |
| 324 | 326 | ||
| 325 | /* print leading zeroes */ |
327 | /* print leading zeroes */ |
| 326 | precision -= size; |
328 | precision -= size; |
| 327 | while (precision-- > 0) { |
329 | while (precision-- > 0) { |
| 328 | putchar('0'); |
330 | putchar('0'); |
| 329 | written++; |
331 | written++; |
| 330 | } |
332 | } |
| 331 | 333 | ||
| 332 | 334 | ||
| 333 | /* print number itself */ |
335 | /* print number itself */ |
| 334 | 336 | ||
| 335 | written += putstr(++ptr); |
337 | written += putstr(++ptr); |
| 336 | 338 | ||
| 337 | /* print ending spaces */ |
339 | /* print ending spaces */ |
| 338 | 340 | ||
| 339 | while (width-- > 0) { |
341 | while (width-- > 0) { |
| 340 | putchar(' '); |
342 | putchar(' '); |
| 341 | written++; |
343 | written++; |
| 342 | } |
344 | } |
| 343 | 345 | ||
| 344 | return written; |
346 | return written; |
| 345 | } |
347 | } |
| 346 | 348 | ||
| 347 | /** General formatted text print |
349 | /** General formatted text print |
| 348 | * |
350 | * |
| 349 | * Print string formatted according the fmt parameter |
351 | * Print string formatted according to the fmt parameter |
| 350 | * and variant arguments. Each formatting directive |
352 | * and variadic arguments. Each formatting directive |
| 351 | * must have the following form: |
353 | * must have the following form: |
| 352 | * % [ flags ] [ width ] [ .precision ] [ type ] conversion |
354 | * % [ flags ] [ width ] [ .precision ] [ type ] conversion |
| 353 | * |
355 | * |
| 354 | * FLAGS: |
356 | * FLAGS: |
| - | 357 | * # Force to print prefix. |
|
| 355 | * # Force to print prefix. For conversion %o is prefix 0, for %x and %X are prefixes 0x and 0X and for conversion %b is prefix 0b. |
358 | * For conversion %o the prefix is 0, for %x and %X prefixes are 0x and 0X and for conversion %b the prefix is 0b. |
| 356 | * - Align to left. |
359 | * - Align to left. |
| 357 | * + Print positive sign just as negative. |
360 | * + Print positive sign just as negative. |
| 358 | * (space) If printed number is positive and '+' flag is not set, print space in place of sign. |
361 | * (space) If printed number is positive and '+' flag is not set, print space in place of sign. |
| 359 | * 0 Print 0 as padding instead of spaces. Zeroes are placed between sign and the rest of number. This flag is ignored if '-' flag is specified. |
362 | * 0 Print 0 as padding instead of spaces. Zeroes are placed between sign and the rest of number. |
| - | 363 | * This flag is ignored if '-' flag is specified. |
|
| 360 | * |
364 | * |
| 361 | * WIDTH: |
365 | * WIDTH: |
| 362 | * Specify minimal width of printed argument. If it is bigger, width is ignored. |
366 | * Specify minimal width of printed argument. If it is bigger, width is ignored. |
| 363 | * If width is specified with a '*' character instead of number, width is taken from parameter list. |
367 | * If width is specified with a '*' character instead of number, width is taken from parameter list. |
| 364 | * Int parameter expected before parameter for processed conversion specification. |
368 | * Int parameter expected before parameter for processed conversion specification. |
| 365 | * If this value is negative it is taken its absolute value and the '-' flag is set. |
369 | * If this value is negative its absolute value is taken and the '-' flag is set. |
| 366 | * |
370 | * |
| 367 | * PRECISION: |
371 | * PRECISION: |
| 368 | * Value precision. For numbers it specifies minimum valid numbers. |
372 | * Value precision. For numbers it specifies minimum valid numbers. |
| 369 | * Smaller numbers are printed with leading zeroes. Bigger numbers are not affected. |
373 | * Smaller numbers are printed with leading zeroes. Bigger numbers are not affected. |
| 370 | * Strings with more than precision characters are cutted of. |
374 | * Strings with more than precision characters are cut off. |
| 371 | * Just as width could be '*' used instead a number. |
375 | * Just as with width, an '*' can be used used instead of a number. |
| 372 | * A int value is then expected in parameters. When both width and precision are specified using '*', |
376 | * An integer value is then expected in parameters. When both width and precision are specified using '*', |
| 373 | * first parameter is used for width and second one for precision. |
377 | * first parameter is used for width and second one for precision. |
| 374 | * |
378 | * |
| 375 | * TYPE: |
379 | * TYPE: |
| 376 | * hh signed or unsigned char |
380 | * hh signed or unsigned char |
| 377 | * h signed or usigned short |
381 | * h signed or usigned short |
| 378 | * signed or usigned int (default value) |
382 | * signed or usigned int (default value) |
| 379 | * l signed or usigned long int |
383 | * l signed or usigned long int |
| 380 | * ll signed or usigned long long int |
384 | * ll signed or usigned long long int |
| 381 | * z __native (non-standard extension) |
385 | * z __native (non-standard extension) |
| 382 | * |
386 | * |
| 383 | * |
387 | * |
| 384 | * CONVERSIONS: |
388 | * CONVERSIONS: |
| 385 | * |
389 | * |
| 386 | * % Print percentage character. |
390 | * % Print percentage character. |
| 387 | * |
391 | * |
| 388 | * c Print single character. |
392 | * c Print single character. |
| 389 | * |
393 | * |
| 390 | * s Print zero terminated string. If a NULL value is passed as value, "(NULL)" is printed instead. |
394 | * s Print zero terminated string. If a NULL value is passed as value, "(NULL)" is printed instead. |
| 391 | * |
395 | * |
| 392 | * P, p Print value of a pointer. Void * value is expected and it is printed in hexadecimal notation with prefix |
396 | * P, p Print value of a pointer. Void * value is expected and it is printed in hexadecimal notation with prefix |
| 393 | * ( as with %#X or %#x for 32bit or %#X / %#x for 64bit long pointers). |
397 | * ( as with %#X or %#x for 32bit or %#X / %#x for 64bit long pointers). |
| 394 | * |
398 | * |
| 395 | * b Print value as unsigned binary number. Prefix is not printed by default. (Nonstandard extension.) |
399 | * b Print value as unsigned binary number. Prefix is not printed by default. (Nonstandard extension.) |
| 396 | * |
400 | * |
| 397 | * o Print value as unsigned octal number. Prefix is not printed by default. |
401 | * o Print value as unsigned octal number. Prefix is not printed by default. |
| 398 | * |
402 | * |
| 399 | * d,i Print signed decimal number. There is no difference between d and i conversion. |
403 | * d,i Print signed decimal number. There is no difference between d and i conversion. |
| 400 | * |
404 | * |
| 401 | * u Print unsigned decimal number. |
405 | * u Print unsigned decimal number. |
| 402 | * |
406 | * |
| 403 | * X, x Print hexadecimal number with upper- or lower-case. Prefix is not printed by default. |
407 | * X, x Print hexadecimal number with upper- or lower-case. Prefix is not printed by default. |
| 404 | * |
408 | * |
| 405 | * All other characters from fmt except the formatting directives |
409 | * All other characters from fmt except the formatting directives |
| 406 | * are printed in verbatim. |
410 | * are printed in verbatim. |
| 407 | * |
411 | * |
| 408 | * @param fmt Formatting NULL terminated string. |
412 | * @param fmt Formatting NULL terminated string. |
| 409 | * @return count of printed characters or negative value on fail. |
413 | * @return count of printed characters or negative value on fail. |
| 410 | */ |
414 | */ |
| 411 | int printf(const char *fmt, ...) |
415 | int printf(const char *fmt, ...) |
| 412 | { |
416 | { |
| 413 | int irqpri; |
417 | int irqpri; |
| 414 | int i = 0, j = 0; /* i is index of currently processed char from fmt, j is index to the first not printed nonformating character */ |
418 | int i = 0, j = 0; /* i is index of currently processed char from fmt, j is index to the first not printed nonformating character */ |
| 415 | int end; |
419 | int end; |
| 416 | int counter; /* counter of printed characters */ |
420 | int counter; /* counter of printed characters */ |
| 417 | int retval; /* used to store return values from called functions */ |
421 | int retval; /* used to store return values from called functions */ |
| 418 | va_list ap; |
422 | va_list ap; |
| 419 | char c; |
423 | char c; |
| 420 | qualifier_t qualifier; /* type of argument */ |
424 | qualifier_t qualifier; /* type of argument */ |
| 421 | int base; /* base in which will be parameter (numbers only) printed */ |
425 | int base; /* base in which will be parameter (numbers only) printed */ |
| 422 | __u64 number; /* argument value */ |
426 | __u64 number; /* argument value */ |
| 423 | __native size; /* byte size of integer parameter */ |
427 | __native size; /* byte size of integer parameter */ |
| 424 | int width, precision; |
428 | int width, precision; |
| 425 | __u64 flags; |
429 | __u64 flags; |
| 426 | 430 | ||
| 427 | counter = 0; |
431 | counter = 0; |
| 428 | 432 | ||
| 429 | va_start(ap, fmt); |
433 | va_start(ap, fmt); |
| 430 | 434 | ||
| 431 | irqpri = interrupts_disable(); |
435 | irqpri = interrupts_disable(); |
| 432 | spinlock_lock(&printflock); |
436 | spinlock_lock(&printflock); |
| 433 | 437 | ||
| 434 | 438 | ||
| 435 | while ((c = fmt[i])) { |
439 | while ((c = fmt[i])) { |
| 436 | /* control character */ |
440 | /* control character */ |
| 437 | if (c == '%' ) { |
441 | if (c == '%' ) { |
| 438 | /* print common characters if any processed */ |
442 | /* print common characters if any processed */ |
| 439 | if (i > j) { |
443 | if (i > j) { |
| 440 | if ((retval = putnchars(&fmt[j], (__native)(i - j))) == EOF) { /* error */ |
444 | if ((retval = putnchars(&fmt[j], (__native)(i - j))) == EOF) { /* error */ |
| 441 | counter = -counter; |
445 | counter = -counter; |
| 442 | goto out; |
446 | goto out; |
| 443 | } |
447 | } |
| 444 | counter += retval; |
448 | counter += retval; |
| 445 | } |
449 | } |
| 446 | 450 | ||
| 447 | j = i; |
451 | j = i; |
| 448 | /* parse modifiers */ |
452 | /* parse modifiers */ |
| 449 | flags = 0; |
453 | flags = 0; |
| 450 | end = 0; |
454 | end = 0; |
| 451 | 455 | ||
| 452 | do { |
456 | do { |
| 453 | ++i; |
457 | ++i; |
| 454 | switch (c = fmt[i]) { |
458 | switch (c = fmt[i]) { |
| 455 | case '#': flags |= __PRINTF_FLAG_PREFIX; break; |
459 | case '#': flags |= __PRINTF_FLAG_PREFIX; break; |
| 456 | case '-': flags |= __PRINTF_FLAG_LEFTALIGNED; break; |
460 | case '-': flags |= __PRINTF_FLAG_LEFTALIGNED; break; |
| 457 | case '+': flags |= __PRINTF_FLAG_SHOWPLUS; break; |
461 | case '+': flags |= __PRINTF_FLAG_SHOWPLUS; break; |
| 458 | case ' ': flags |= __PRINTF_FLAG_SPACESIGN; break; |
462 | case ' ': flags |= __PRINTF_FLAG_SPACESIGN; break; |
| 459 | case '0': flags |= __PRINTF_FLAG_ZEROPADDED; break; |
463 | case '0': flags |= __PRINTF_FLAG_ZEROPADDED; break; |
| 460 | default: end = 1; |
464 | default: end = 1; |
| 461 | }; |
465 | }; |
| 462 | 466 | ||
| 463 | } while (end == 0); |
467 | } while (end == 0); |
| 464 | 468 | ||
| 465 | /* width & '*' operator */ |
469 | /* width & '*' operator */ |
| 466 | width = 0; |
470 | width = 0; |
| 467 | if (isdigit(fmt[i])) { |
471 | if (isdigit(fmt[i])) { |
| 468 | while (isdigit(fmt[i])) { |
472 | while (isdigit(fmt[i])) { |
| 469 | width *= 10; |
473 | width *= 10; |
| 470 | width += fmt[i++] - '0'; |
474 | width += fmt[i++] - '0'; |
| 471 | } |
475 | } |
| 472 | } else if (fmt[i] == '*') { |
476 | } else if (fmt[i] == '*') { |
| 473 | /* get width value from argument list*/ |
477 | /* get width value from argument list*/ |
| 474 | i++; |
478 | i++; |
| 475 | width = (int)va_arg(ap, int); |
479 | width = (int)va_arg(ap, int); |
| 476 | if (width < 0) { |
480 | if (width < 0) { |
| 477 | /* negative width means to set '-' flag */ |
481 | /* negative width means to set '-' flag */ |
| 478 | width *= -1; |
482 | width *= -1; |
| 479 | flags |= __PRINTF_FLAG_LEFTALIGNED; |
483 | flags |= __PRINTF_FLAG_LEFTALIGNED; |
| 480 | } |
484 | } |
| 481 | } |
485 | } |
| 482 | 486 | ||
| 483 | /* precision and '*' operator */ |
487 | /* precision and '*' operator */ |
| 484 | precision = 0; |
488 | precision = 0; |
| 485 | if (fmt[i] == '.') { |
489 | if (fmt[i] == '.') { |
| 486 | ++i; |
490 | ++i; |
| 487 | if (isdigit(fmt[i])) { |
491 | if (isdigit(fmt[i])) { |
| 488 | while (isdigit(fmt[i])) { |
492 | while (isdigit(fmt[i])) { |
| 489 | precision *= 10; |
493 | precision *= 10; |
| 490 | precision += fmt[i++] - '0'; |
494 | precision += fmt[i++] - '0'; |
| 491 | } |
495 | } |
| 492 | } else if (fmt[i] == '*') { |
496 | } else if (fmt[i] == '*') { |
| 493 | /* get precision value from argument list*/ |
497 | /* get precision value from argument list*/ |
| 494 | i++; |
498 | i++; |
| 495 | precision = (int)va_arg(ap, int); |
499 | precision = (int)va_arg(ap, int); |
| 496 | if (precision < 0) { |
500 | if (precision < 0) { |
| 497 | /* negative precision means to ignore it */ |
501 | /* negative precision means to ignore it */ |
| 498 | precision = 0; |
502 | precision = 0; |
| 499 | } |
503 | } |
| 500 | } |
504 | } |
| 501 | } |
505 | } |
| 502 | 506 | ||
| 503 | switch (fmt[i++]) { |
507 | switch (fmt[i++]) { |
| 504 | /** TODO: unimplemented qualifiers: |
508 | /** TODO: unimplemented qualifiers: |
| 505 | * t ptrdiff_t - ISO C 99 |
509 | * t ptrdiff_t - ISO C 99 |
| 506 | */ |
510 | */ |
| 507 | case 'h': /* char or short */ |
511 | case 'h': /* char or short */ |
| 508 | qualifier = PrintfQualifierShort; |
512 | qualifier = PrintfQualifierShort; |
| 509 | if (fmt[i] == 'h') { |
513 | if (fmt[i] == 'h') { |
| 510 | i++; |
514 | i++; |
| 511 | qualifier = PrintfQualifierByte; |
515 | qualifier = PrintfQualifierByte; |
| 512 | } |
516 | } |
| 513 | break; |
517 | break; |
| 514 | case 'l': /* long or long long*/ |
518 | case 'l': /* long or long long*/ |
| 515 | qualifier = PrintfQualifierLong; |
519 | qualifier = PrintfQualifierLong; |
| 516 | if (fmt[i] == 'l') { |
520 | if (fmt[i] == 'l') { |
| 517 | i++; |
521 | i++; |
| 518 | qualifier = PrintfQualifierLongLong; |
522 | qualifier = PrintfQualifierLongLong; |
| 519 | } |
523 | } |
| 520 | break; |
524 | break; |
| 521 | case 'z': /* __native */ |
525 | case 'z': /* __native */ |
| 522 | qualifier = PrintfQualifierNative; |
526 | qualifier = PrintfQualifierNative; |
| 523 | break; |
527 | break; |
| 524 | default: |
528 | default: |
| 525 | qualifier = PrintfQualifierInt; /* default type */ |
529 | qualifier = PrintfQualifierInt; /* default type */ |
| 526 | --i; |
530 | --i; |
| 527 | } |
531 | } |
| 528 | 532 | ||
| 529 | base = 10; |
533 | base = 10; |
| 530 | 534 | ||
| 531 | switch (c = fmt[i]) { |
535 | switch (c = fmt[i]) { |
| 532 | 536 | ||
| 533 | /* |
537 | /* |
| 534 | * String and character conversions. |
538 | * String and character conversions. |
| 535 | */ |
539 | */ |
| 536 | case 's': |
540 | case 's': |
| 537 | if ((retval = print_string(va_arg(ap, char*), width, precision, flags)) == EOF) { |
541 | if ((retval = print_string(va_arg(ap, char*), width, precision, flags)) == EOF) { |
| 538 | counter = -counter; |
542 | counter = -counter; |
| 539 | goto out; |
543 | goto out; |
| 540 | }; |
544 | }; |
| 541 | 545 | ||
| 542 | counter += retval; |
546 | counter += retval; |
| 543 | j = i + 1; |
547 | j = i + 1; |
| 544 | goto next_char; |
548 | goto next_char; |
| 545 | case 'c': |
549 | case 'c': |
| 546 | c = va_arg(ap, unsigned int); |
550 | c = va_arg(ap, unsigned int); |
| 547 | if ((retval = print_char(c, width, flags )) == EOF) { |
551 | if ((retval = print_char(c, width, flags )) == EOF) { |
| 548 | counter = -counter; |
552 | counter = -counter; |
| 549 | goto out; |
553 | goto out; |
| 550 | }; |
554 | }; |
| 551 | 555 | ||
| 552 | counter += retval; |
556 | counter += retval; |
| 553 | j = i + 1; |
557 | j = i + 1; |
| 554 | goto next_char; |
558 | goto next_char; |
| 555 | 559 | ||
| 556 | /* |
560 | /* |
| 557 | * Integer values |
561 | * Integer values |
| 558 | */ |
562 | */ |
| 559 | case 'P': /* pointer */ |
563 | case 'P': /* pointer */ |
| 560 | flags |= __PRINTF_FLAG_BIGCHARS; |
564 | flags |= __PRINTF_FLAG_BIGCHARS; |
| 561 | case 'p': |
565 | case 'p': |
| 562 | flags |= __PRINTF_FLAG_PREFIX; |
566 | flags |= __PRINTF_FLAG_PREFIX; |
| 563 | base = 16; |
567 | base = 16; |
| 564 | qualifier = PrintfQualifierPointer; |
568 | qualifier = PrintfQualifierPointer; |
| 565 | break; |
569 | break; |
| 566 | case 'b': |
570 | case 'b': |
| 567 | base = 2; |
571 | base = 2; |
| 568 | break; |
572 | break; |
| 569 | case 'o': |
573 | case 'o': |
| 570 | base = 8; |
574 | base = 8; |
| 571 | break; |
575 | break; |
| 572 | case 'd': |
576 | case 'd': |
| 573 | case 'i': |
577 | case 'i': |
| 574 | flags |= __PRINTF_FLAG_SIGNED; |
578 | flags |= __PRINTF_FLAG_SIGNED; |
| 575 | case 'u': |
579 | case 'u': |
| 576 | break; |
580 | break; |
| 577 | case 'X': |
581 | case 'X': |
| 578 | flags |= __PRINTF_FLAG_BIGCHARS; |
582 | flags |= __PRINTF_FLAG_BIGCHARS; |
| 579 | case 'x': |
583 | case 'x': |
| 580 | base = 16; |
584 | base = 16; |
| 581 | break; |
585 | break; |
| 582 | /* percentile itself */ |
586 | /* percentile itself */ |
| 583 | case '%': |
587 | case '%': |
| 584 | j = i; |
588 | j = i; |
| 585 | goto next_char; |
589 | goto next_char; |
| 586 | /* |
590 | /* |
| 587 | * Bad formatting. |
591 | * Bad formatting. |
| 588 | */ |
592 | */ |
| 589 | default: |
593 | default: |
| 590 | /* Unknown format |
594 | /* Unknown format |
| 591 | * now, the j is index of '%' so we will |
595 | * now, the j is index of '%' so we will |
| 592 | * print whole bad format sequence |
596 | * print whole bad format sequence |
| 593 | */ |
597 | */ |
| 594 | goto next_char; |
598 | goto next_char; |
| 595 | } |
599 | } |
| 596 | 600 | ||
| 597 | 601 | ||
| 598 | /* Print integers */ |
602 | /* Print integers */ |
| 599 | /* print number */ |
603 | /* print number */ |
| 600 | switch (qualifier) { |
604 | switch (qualifier) { |
| 601 | case PrintfQualifierByte: |
605 | case PrintfQualifierByte: |
| 602 | size = sizeof(unsigned char); |
606 | size = sizeof(unsigned char); |
| 603 | number = (__u64)va_arg(ap, unsigned int); |
607 | number = (__u64)va_arg(ap, unsigned int); |
| 604 | break; |
608 | break; |
| 605 | case PrintfQualifierShort: |
609 | case PrintfQualifierShort: |
| 606 | size = sizeof(unsigned short); |
610 | size = sizeof(unsigned short); |
| 607 | number = (__u64)va_arg(ap, unsigned int); |
611 | number = (__u64)va_arg(ap, unsigned int); |
| 608 | break; |
612 | break; |
| 609 | case PrintfQualifierInt: |
613 | case PrintfQualifierInt: |
| 610 | size = sizeof(unsigned int); |
614 | size = sizeof(unsigned int); |
| 611 | number = (__u64)va_arg(ap, unsigned int); |
615 | number = (__u64)va_arg(ap, unsigned int); |
| 612 | break; |
616 | break; |
| 613 | case PrintfQualifierLong: |
617 | case PrintfQualifierLong: |
| 614 | size = sizeof(unsigned long); |
618 | size = sizeof(unsigned long); |
| 615 | number = (__u64)va_arg(ap, unsigned long); |
619 | number = (__u64)va_arg(ap, unsigned long); |
| 616 | break; |
620 | break; |
| 617 | case PrintfQualifierLongLong: |
621 | case PrintfQualifierLongLong: |
| 618 | size = sizeof(unsigned long long); |
622 | size = sizeof(unsigned long long); |
| 619 | number = (__u64)va_arg(ap, unsigned long long); |
623 | number = (__u64)va_arg(ap, unsigned long long); |
| 620 | break; |
624 | break; |
| 621 | case PrintfQualifierPointer: |
625 | case PrintfQualifierPointer: |
| 622 | size = sizeof(void *); |
626 | size = sizeof(void *); |
| 623 | number = (__u64)(unsigned long)va_arg(ap, void *); |
627 | number = (__u64)(unsigned long)va_arg(ap, void *); |
| 624 | break; |
628 | break; |
| 625 | case PrintfQualifierNative: |
629 | case PrintfQualifierNative: |
| 626 | size = sizeof(__native); |
630 | size = sizeof(__native); |
| 627 | number = (__u64)va_arg(ap, __native); |
631 | number = (__u64)va_arg(ap, __native); |
| 628 | break; |
632 | break; |
| 629 | default: /* Unknown qualifier */ |
633 | default: /* Unknown qualifier */ |
| 630 | counter = -counter; |
634 | counter = -counter; |
| 631 | goto out; |
635 | goto out; |
| 632 | 636 | ||
| 633 | } |
637 | } |
| 634 | 638 | ||
| 635 | if (flags & __PRINTF_FLAG_SIGNED) { |
639 | if (flags & __PRINTF_FLAG_SIGNED) { |
| 636 | if (number & (0x1 << (size*8 - 1))) { |
640 | if (number & (0x1 << (size*8 - 1))) { |
| 637 | flags |= __PRINTF_FLAG_NEGATIVE; |
641 | flags |= __PRINTF_FLAG_NEGATIVE; |
| 638 | 642 | ||
| 639 | if (size == sizeof(__u64)) { |
643 | if (size == sizeof(__u64)) { |
| 640 | number = -((__s64)number); |
644 | number = -((__s64)number); |
| 641 | } else { |
645 | } else { |
| 642 | number = ~number; |
646 | number = ~number; |
| 643 | number &= (~((0xFFFFFFFFFFFFFFFFll) << (size * 8))); |
647 | number &= (~((0xFFFFFFFFFFFFFFFFll) << (size * 8))); |
| 644 | number++; |
648 | number++; |
| 645 | } |
649 | } |
| 646 | } |
650 | } |
| 647 | } |
651 | } |
| 648 | 652 | ||
| 649 | if ((retval = print_number(number, width, precision, base, flags)) == EOF ) { |
653 | if ((retval = print_number(number, width, precision, base, flags)) == EOF ) { |
| 650 | counter = -counter; |
654 | counter = -counter; |
| 651 | goto out; |
655 | goto out; |
| 652 | }; |
656 | }; |
| 653 | 657 | ||
| 654 | counter += retval; |
658 | counter += retval; |
| 655 | j = i + 1; |
659 | j = i + 1; |
| 656 | } |
660 | } |
| 657 | next_char: |
661 | next_char: |
| 658 | 662 | ||
| 659 | ++i; |
663 | ++i; |
| 660 | } |
664 | } |
| 661 | 665 | ||
| 662 | if (i > j) { |
666 | if (i > j) { |
| 663 | if ((retval = putnchars(&fmt[j], (__native)(i - j))) == EOF) { /* error */ |
667 | if ((retval = putnchars(&fmt[j], (__native)(i - j))) == EOF) { /* error */ |
| 664 | counter = -counter; |
668 | counter = -counter; |
| 665 | goto out; |
669 | goto out; |
| 666 | } |
670 | } |
| 667 | counter += retval; |
671 | counter += retval; |
| 668 | } |
672 | } |
| 669 | out: |
673 | out: |
| 670 | spinlock_unlock(&printflock); |
674 | spinlock_unlock(&printflock); |
| 671 | interrupts_restore(irqpri); |
675 | interrupts_restore(irqpri); |
| 672 | 676 | ||
| 673 | va_end(ap); |
677 | va_end(ap); |
| 674 | return counter; |
678 | return counter; |
| 675 | } |
679 | } |
| 676 | - | ||
| 677 | 680 | ||