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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 appending '\n' to the end. |
83 | /** Print one string without appending newline to the end. |
| 84 | * |
84 | * |
| 85 | * Do not use this function directly - printflock is not locked here. |
85 | * Do not use this function directly - printflock is not locked here. |
| 86 | * |
86 | * |
| 87 | */ |
87 | */ |
| 88 | static int putstr(const char *str) |
88 | static int putstr(const char *str) |
| 89 | { |
89 | { |
| 90 | int count; |
90 | int count; |
| 91 | if (str == NULL) { |
91 | if (str == NULL) { |
| 92 | str = "(NULL)"; |
92 | str = "(NULL)"; |
| 93 | } |
93 | } |
| 94 | 94 | ||
| 95 | for (count = 0; str[count] != 0; count++) { |
95 | for (count = 0; str[count] != 0; count++) { |
| 96 | putchar(str[count]); |
96 | putchar(str[count]); |
| 97 | } |
97 | } |
| 98 | return count; |
98 | return count; |
| 99 | } |
99 | } |
| 100 | 100 | ||
| 101 | /** Print count characters from buffer to output. |
101 | /** Print count characters from buffer to output. |
| 102 | * |
102 | * |
| 103 | * @param buffer Address of the buffer with charaters to be printed. |
103 | * @param buffer Address of the buffer with charaters to be printed. |
| 104 | * @param count Number of characters to be printed. |
104 | * @param count Number of characters to be printed. |
| 105 | * |
105 | * |
| 106 | * @return Number of characters printed. |
106 | * @return Number of characters printed. |
| 107 | */ |
107 | */ |
| 108 | static int putnchars(const char *buffer, __native count) |
108 | static int putnchars(const char *buffer, __native count) |
| 109 | { |
109 | { |
| 110 | int i; |
110 | int i; |
| 111 | if (buffer == NULL) { |
111 | if (buffer == NULL) { |
| 112 | buffer = "(NULL)"; |
112 | buffer = "(NULL)"; |
| 113 | count = 6; |
113 | count = 6; |
| 114 | } |
114 | } |
| 115 | 115 | ||
| 116 | for (i = 0; i < count; i++) { |
116 | for (i = 0; i < count; i++) { |
| 117 | putchar(buffer[i]); |
117 | putchar(buffer[i]); |
| 118 | } |
118 | } |
| 119 | 119 | ||
| 120 | return count; |
120 | return count; |
| 121 | } |
121 | } |
| 122 | 122 | ||
| 123 | /** Print one formatted character |
123 | /** Print one formatted character |
| 124 | * |
124 | * |
| 125 | * @param c Character to print. |
125 | * @param c Character to print. |
| 126 | * @param width |
126 | * @param width |
| 127 | * @param flags |
127 | * @param flags |
| 128 | * @return Number of printed characters or EOF. |
128 | * @return Number of printed characters or EOF. |
| 129 | */ |
129 | */ |
| 130 | static int print_char(char c, int width, __u64 flags) |
130 | static int print_char(char c, int width, __u64 flags) |
| 131 | { |
131 | { |
| 132 | int counter = 0; |
132 | int counter = 0; |
| 133 | 133 | ||
| 134 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
134 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
| 135 | while (--width > 0) { /* one space is consumed by character itself hence the predecrement */ |
135 | while (--width > 0) { /* one space is consumed by character itself hence the predecrement */ |
| 136 | /* FIXME: painfully slow */ |
136 | /* FIXME: painfully slow */ |
| 137 | putchar(' '); |
137 | putchar(' '); |
| 138 | ++counter; |
138 | ++counter; |
| 139 | } |
139 | } |
| 140 | } |
140 | } |
| 141 | 141 | ||
| 142 | putchar(c); |
142 | putchar(c); |
| 143 | ++counter; |
143 | ++counter; |
| 144 | 144 | ||
| 145 | while (--width > 0) { /* one space is consumed by character itself hence the predecrement */ |
145 | while (--width > 0) { /* one space is consumed by character itself hence the predecrement */ |
| 146 | putchar(' '); |
146 | putchar(' '); |
| 147 | ++counter; |
147 | ++counter; |
| 148 | } |
148 | } |
| 149 | 149 | ||
| 150 | return counter; |
150 | return counter; |
| 151 | } |
151 | } |
| 152 | 152 | ||
| 153 | /** Print one string |
153 | /** Print one string |
| 154 | * @param s string |
154 | * @param s string |
| 155 | * @param width |
155 | * @param width |
| 156 | * @param precision |
156 | * @param precision |
| 157 | * @param flags |
157 | * @param flags |
| 158 | * @return number of printed characters or EOF |
158 | * @return number of printed characters or EOF |
| 159 | */ |
159 | */ |
| 160 | static int print_string(char *s, int width, int precision, __u64 flags) |
160 | static int print_string(char *s, int width, int precision, __u64 flags) |
| 161 | { |
161 | { |
| 162 | int counter = 0; |
162 | int counter = 0; |
| 163 | __native size; |
163 | __native size; |
| 164 | 164 | ||
| 165 | if (s == NULL) { |
165 | if (s == NULL) { |
| 166 | return putstr("(NULL)"); |
166 | return putstr("(NULL)"); |
| 167 | } |
167 | } |
| 168 | 168 | ||
| 169 | size = strlen(s); |
169 | size = strlen(s); |
| 170 | 170 | ||
| 171 | /* print leading spaces */ |
171 | /* print leading spaces */ |
| 172 | 172 | ||
| 173 | if (precision == 0) |
173 | if (precision == 0) |
| 174 | precision = size; |
174 | precision = size; |
| 175 | 175 | ||
| 176 | width -= precision; |
176 | width -= precision; |
| 177 | 177 | ||
| 178 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
178 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
| 179 | while (width-- > 0) { |
179 | while (width-- > 0) { |
| 180 | putchar(' '); |
180 | putchar(' '); |
| 181 | counter++; |
181 | counter++; |
| 182 | } |
182 | } |
| 183 | } |
183 | } |
| 184 | 184 | ||
| 185 | while (precision > size) { |
185 | while (precision > size) { |
| 186 | precision--; |
186 | precision--; |
| 187 | putchar(' '); |
187 | putchar(' '); |
| 188 | ++counter; |
188 | ++counter; |
| 189 | } |
189 | } |
| 190 | 190 | ||
| 191 | if (putnchars(s, precision) == EOF) { |
191 | if (putnchars(s, precision) == EOF) { |
| 192 | return EOF; |
192 | return EOF; |
| 193 | } |
193 | } |
| 194 | 194 | ||
| 195 | counter += precision; |
195 | counter += precision; |
| 196 | 196 | ||
| 197 | while (width-- > 0) { |
197 | while (width-- > 0) { |
| 198 | putchar(' '); |
198 | putchar(' '); |
| 199 | ++counter; |
199 | ++counter; |
| 200 | } |
200 | } |
| 201 | 201 | ||
| 202 | return ++counter; |
202 | return ++counter; |
| 203 | } |
203 | } |
| 204 | 204 | ||
| 205 | 205 | ||
| 206 | /** Print number in given base |
206 | /** Print number in given base |
| 207 | * |
207 | * |
| 208 | * Print significant digits of a number in given |
208 | * Print significant digits of a number in given |
| 209 | * base. |
209 | * base. |
| 210 | * |
210 | * |
| 211 | * @param num Number to print. |
211 | * @param num Number to print. |
| 212 | * @param width |
212 | * @param width |
| 213 | * @param precision |
213 | * @param precision |
| 214 | * @param base Base to print the number in (should |
214 | * @param base Base to print the number in (should |
| 215 | * be in range 2 .. 16). |
215 | * be in range 2 .. 16). |
| 216 | * @param flags output modifiers |
216 | * @param flags output modifiers |
| 217 | * @return number of written characters or EOF. |
217 | * @return number of written characters or EOF. |
| 218 | */ |
218 | */ |
| 219 | static int print_number(__u64 num, int width, int precision, int base , __u64 flags) |
219 | static int print_number(__u64 num, int width, int precision, int base , __u64 flags) |
| 220 | { |
220 | { |
| 221 | char *digits = digits_small; |
221 | char *digits = digits_small; |
| 222 | char d[PRINT_NUMBER_BUFFER_SIZE]; /* this is good enough even for base == 2, prefix and sign */ |
222 | char d[PRINT_NUMBER_BUFFER_SIZE]; /* this is good enough even for base == 2, prefix and sign */ |
| 223 | char *ptr = &d[PRINT_NUMBER_BUFFER_SIZE - 1]; |
223 | char *ptr = &d[PRINT_NUMBER_BUFFER_SIZE - 1]; |
| 224 | int size = 0; |
224 | int size = 0; |
| 225 | int number_size; /* size of plain number */ |
225 | int number_size; /* size of plain number */ |
| 226 | int written = 0; |
226 | int written = 0; |
| 227 | char sgn; |
227 | char sgn; |
| 228 | 228 | ||
| 229 | if (flags & __PRINTF_FLAG_BIGCHARS) |
229 | if (flags & __PRINTF_FLAG_BIGCHARS) |
| 230 | digits = digits_big; |
230 | digits = digits_big; |
| 231 | 231 | ||
| 232 | *ptr-- = 0; /* Put zero at end of string */ |
232 | *ptr-- = 0; /* Put zero at end of string */ |
| 233 | 233 | ||
| 234 | if (num == 0) { |
234 | if (num == 0) { |
| 235 | *ptr-- = '0'; |
235 | *ptr-- = '0'; |
| 236 | size++; |
236 | size++; |
| 237 | } else { |
237 | } else { |
| 238 | do { |
238 | do { |
| 239 | *ptr-- = digits[num % base]; |
239 | *ptr-- = digits[num % base]; |
| 240 | size++; |
240 | size++; |
| 241 | } while (num /= base); |
241 | } while (num /= base); |
| 242 | } |
242 | } |
| 243 | 243 | ||
| 244 | number_size = size; |
244 | number_size = size; |
| 245 | 245 | ||
| 246 | /* Collect sum of all prefixes/signs/... to calculate padding and leading zeroes */ |
246 | /* Collect sum of all prefixes/signs/... to calculate padding and leading zeroes */ |
| 247 | if (flags & __PRINTF_FLAG_PREFIX) { |
247 | if (flags & __PRINTF_FLAG_PREFIX) { |
| 248 | switch(base) { |
248 | switch(base) { |
| 249 | case 2: /* Binary formating is not standard, but usefull */ |
249 | case 2: /* Binary formating is not standard, but usefull */ |
| 250 | size += 2; |
250 | size += 2; |
| 251 | break; |
251 | break; |
| 252 | case 8: |
252 | case 8: |
| 253 | size++; |
253 | size++; |
| 254 | break; |
254 | break; |
| 255 | case 16: |
255 | case 16: |
| 256 | size += 2; |
256 | size += 2; |
| 257 | break; |
257 | break; |
| 258 | } |
258 | } |
| 259 | } |
259 | } |
| 260 | 260 | ||
| 261 | sgn = 0; |
261 | sgn = 0; |
| 262 | if (flags & __PRINTF_FLAG_SIGNED) { |
262 | if (flags & __PRINTF_FLAG_SIGNED) { |
| 263 | if (flags & __PRINTF_FLAG_NEGATIVE) { |
263 | if (flags & __PRINTF_FLAG_NEGATIVE) { |
| 264 | sgn = '-'; |
264 | sgn = '-'; |
| 265 | size++; |
265 | size++; |
| 266 | } else if (flags & __PRINTF_FLAG_SHOWPLUS) { |
266 | } else if (flags & __PRINTF_FLAG_SHOWPLUS) { |
| 267 | sgn = '+'; |
267 | sgn = '+'; |
| 268 | size++; |
268 | size++; |
| 269 | } else if (flags & __PRINTF_FLAG_SPACESIGN) { |
269 | } else if (flags & __PRINTF_FLAG_SPACESIGN) { |
| 270 | sgn = ' '; |
270 | sgn = ' '; |
| 271 | size++; |
271 | size++; |
| 272 | } |
272 | } |
| 273 | } |
273 | } |
| 274 | 274 | ||
| 275 | if (flags & __PRINTF_FLAG_LEFTALIGNED) { |
275 | if (flags & __PRINTF_FLAG_LEFTALIGNED) { |
| 276 | flags &= ~__PRINTF_FLAG_ZEROPADDED; |
276 | flags &= ~__PRINTF_FLAG_ZEROPADDED; |
| 277 | } |
277 | } |
| 278 | 278 | ||
| 279 | /* if number is leftaligned or precision is specified then zeropadding is ignored */ |
279 | /* if number is leftaligned or precision is specified then zeropadding is ignored */ |
| 280 | if (flags & __PRINTF_FLAG_ZEROPADDED) { |
280 | if (flags & __PRINTF_FLAG_ZEROPADDED) { |
| 281 | if ((precision == 0) && (width > size)) { |
281 | if ((precision == 0) && (width > size)) { |
| 282 | precision = width - size + number_size; |
282 | precision = width - size + number_size; |
| 283 | } |
283 | } |
| 284 | } |
284 | } |
| 285 | 285 | ||
| 286 | /* print leading spaces */ |
286 | /* print leading spaces */ |
| 287 | if (number_size > precision) /* We must print whole number not only a part */ |
287 | if (number_size > precision) /* We must print whole number not only a part */ |
| 288 | precision = number_size; |
288 | precision = number_size; |
| 289 | 289 | ||
| 290 | width -= precision + size - number_size; |
290 | width -= precision + size - number_size; |
| 291 | 291 | ||
| 292 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
292 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
| 293 | while (width-- > 0) { |
293 | while (width-- > 0) { |
| 294 | putchar(' '); |
294 | putchar(' '); |
| 295 | written++; |
295 | written++; |
| 296 | } |
296 | } |
| 297 | } |
297 | } |
| 298 | 298 | ||
| 299 | /* print sign */ |
299 | /* print sign */ |
| 300 | if (sgn) { |
300 | if (sgn) { |
| 301 | putchar(sgn); |
301 | putchar(sgn); |
| 302 | written++; |
302 | written++; |
| 303 | } |
303 | } |
| 304 | 304 | ||
| 305 | /* print prefix */ |
305 | /* print prefix */ |
| 306 | 306 | ||
| 307 | if (flags & __PRINTF_FLAG_PREFIX) { |
307 | if (flags & __PRINTF_FLAG_PREFIX) { |
| 308 | switch(base) { |
308 | switch(base) { |
| 309 | case 2: /* Binary formating is not standard, but usefull */ |
309 | case 2: /* Binary formating is not standard, but usefull */ |
| 310 | putchar('0'); |
310 | putchar('0'); |
| 311 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
311 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
| 312 | putchar('B'); |
312 | putchar('B'); |
| 313 | } else { |
313 | } else { |
| 314 | putchar('b'); |
314 | putchar('b'); |
| 315 | } |
315 | } |
| 316 | written += 2; |
316 | written += 2; |
| 317 | break; |
317 | break; |
| 318 | case 8: |
318 | case 8: |
| 319 | putchar('o'); |
319 | putchar('o'); |
| 320 | written++; |
320 | written++; |
| 321 | break; |
321 | break; |
| 322 | case 16: |
322 | case 16: |
| 323 | putchar('0'); |
323 | putchar('0'); |
| 324 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
324 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
| 325 | putchar('X'); |
325 | putchar('X'); |
| 326 | } else { |
326 | } else { |
| 327 | putchar('x'); |
327 | putchar('x'); |
| 328 | } |
328 | } |
| 329 | written += 2; |
329 | written += 2; |
| 330 | break; |
330 | break; |
| 331 | } |
331 | } |
| 332 | } |
332 | } |
| 333 | 333 | ||
| 334 | /* print leading zeroes */ |
334 | /* print leading zeroes */ |
| 335 | precision -= number_size; |
335 | precision -= number_size; |
| 336 | while (precision-- > 0) { |
336 | while (precision-- > 0) { |
| 337 | putchar('0'); |
337 | putchar('0'); |
| 338 | written++; |
338 | written++; |
| 339 | } |
339 | } |
| 340 | 340 | ||
| 341 | 341 | ||
| 342 | /* print number itself */ |
342 | /* print number itself */ |
| 343 | 343 | ||
| 344 | written += putstr(++ptr); |
344 | written += putstr(++ptr); |
| 345 | 345 | ||
| 346 | /* print ending spaces */ |
346 | /* print ending spaces */ |
| 347 | 347 | ||
| 348 | while (width-- > 0) { |
348 | while (width-- > 0) { |
| 349 | putchar(' '); |
349 | putchar(' '); |
| 350 | written++; |
350 | written++; |
| 351 | } |
351 | } |
| 352 | 352 | ||
| 353 | return written; |
353 | return written; |
| 354 | } |
354 | } |
| 355 | 355 | ||
| 356 | /** Print formatted string. |
356 | /** Print formatted string. |
| 357 | * |
357 | * |
| 358 | * Print string formatted according to the @fmt parameter |
358 | * Print string formatted according to the fmt parameter |
| 359 | * and variadic arguments. Each formatting directive |
359 | * and variadic arguments. Each formatting directive |
| 360 | * must have the following form: |
360 | * must have the following form: |
| - | 361 | * |
|
| 361 | * % [ flags ] [ width ] [ .precision ] [ type ] conversion |
362 | * \% [ FLAGS ] [ WIDTH ] [ .PRECISION ] [ TYPE ] CONVERSION |
| - | 363 | * |
|
| - | 364 | * FLAGS:@n |
|
| - | 365 | * "#" Force to print prefix. |
|
| - | 366 | * For conversion \%o the prefix is 0, for %x and \%X prefixes are 0x and 0X |
|
| - | 367 | * and for conversion \%b the prefix is 0b. |
|
| - | 368 | * |
|
| - | 369 | * "-" Align to left. |
|
| 362 | * |
370 | * |
| 363 | * FLAGS: |
- | |
| 364 | * # Force to print prefix. |
- | |
| 365 | * For conversion %o the prefix is 0, for %x and %X prefixes are 0x and 0X and for conversion %b the prefix is 0b. |
- | |
| 366 | * - Align to left. |
- | |
| 367 | * + Print positive sign just as negative. |
371 | * "+" Print positive sign just as negative. |
| - | 372 | * |
|
| 368 | * (space) If the printed number is positive and '+' flag is not set, print space in place of sign. |
373 | * " " If the printed number is positive and "+" flag is not set, print space in |
| - | 374 | * place of sign. |
|
| - | 375 | * |
|
| 369 | * 0 Print 0 as padding instead of spaces. Zeroes are placed between sign and the rest of the number. |
376 | * "0" Print 0 as padding instead of spaces. Zeroes are placed between sign and the |
| 370 | * This flag is ignored if '-' flag is specified. |
377 | * rest of the number. This flag is ignored if "-" flag is specified. |
| 371 | * |
378 | * |
| 372 | * WIDTH: |
379 | * WIDTH:@n |
| 373 | * Specify minimal width of printed argument. If it is bigger, width is ignored. |
380 | * Specify minimal width of printed argument. If it is bigger, width is ignored. |
| 374 | * If width is specified with a '*' character instead of number, width is taken from parameter list. |
381 | * If width is specified with a "*" character instead of number, width is taken from |
| 375 | * And integer parameter is expected before parameter for processed conversion specification. |
382 | * parameter list. And integer parameter is expected before parameter for processed |
| 376 | * If this value is negative its absolute value is taken and the '-' flag is set. |
383 | * conversion specification. If this value is negative its absolute value is taken |
| - | 384 | * and the "-" flag is set. |
|
| 377 | * |
385 | * |
| 378 | * PRECISION: |
386 | * PRECISION:@n |
| 379 | * Value precision. For numbers it specifies minimum valid numbers. |
387 | * Value precision. For numbers it specifies minimum valid numbers. |
| 380 | * Smaller numbers are printed with leading zeroes. Bigger numbers are not affected. |
388 | * Smaller numbers are printed with leading zeroes. Bigger numbers are not affected. |
| 381 | * Strings with more than precision characters are cut off. |
389 | * Strings with more than precision characters are cut off. |
| 382 | * Just as with width, an '*' can be used used instead of a number. |
390 | * Just as with width, an "*" can be used used instead of a number. |
| 383 | * An integer value is then expected in parameters. When both width and precision are specified using '*', |
391 | * An integer value is then expected in parameters. When both width and precision |
| 384 | * first parameter is used for width and second one for precision. |
392 | * are specified using "*", the first parameter is used for width and the second one |
| 385 | * |
- | |
| 386 | * TYPE: |
- | |
| 387 | * hh signed or unsigned char |
- | |
| 388 | * h signed or usigned short |
393 | * for precision. |
| 389 | * signed or usigned int (default value) |
- | |
| 390 | * l signed or usigned long int |
- | |
| 391 | * ll signed or usigned long long int |
- | |
| 392 | * z __native (non-standard extension) |
- | |
| 393 | * |
394 | * |
| - | 395 | * TYPE:@n |
|
| - | 396 | * "hh" Signed or unsigned char.@n |
|
| - | 397 | * "h" Signed or usigned short.@n |
|
| - | 398 | * "" Signed or usigned int (default value).@n |
|
| - | 399 | * "l" Signed or usigned long int.@n |
|
| - | 400 | * "ll" Signed or usigned long long int.@n |
|
| - | 401 | * "z" __native (non-standard extension).@n |
|
| 394 | * |
402 | * |
| 395 | * CONVERSIONS: |
- | |
| 396 | * |
403 | * |
| - | 404 | * CONVERSION:@n |
|
| 397 | * % Print percentage character itself. |
405 | * % Print percentile character itself. |
| 398 | * |
406 | * |
| 399 | * c Print single character. |
407 | * c Print single character. |
| 400 | * |
408 | * |
| 401 | * s Print zero terminated string. If a NULL value is passed as value, "(NULL)" is printed instead. |
409 | * s Print zero terminated string. If a NULL value is passed as value, "(NULL)" is printed instead. |
| 402 | * |
410 | * |
| 403 | * P, p Print value of a pointer. Void * value is expected and it is printed in hexadecimal notation with prefix |
411 | * P, p Print value of a pointer. Void * value is expected and it is printed in hexadecimal notation with prefix |
| 404 | * (as with %#X or %#x for 32bit or %#X / %#x for 64bit long pointers). |
412 | * (as with \%#X or \%#x for 32bit or \%#X / \%#x for 64bit long pointers). |
| 405 | * |
413 | * |
| 406 | * b Print value as unsigned binary number. Prefix is not printed by default. (Nonstandard extension.) |
414 | * b Print value as unsigned binary number. Prefix is not printed by default. (Nonstandard extension.) |
| 407 | * |
415 | * |
| 408 | * o Print value as unsigned octal number. Prefix is not printed by default. |
416 | * o Print value as unsigned octal number. Prefix is not printed by default. |
| 409 | * |
417 | * |
| 410 | * d,i Print signed decimal number. There is no difference between d and i conversion. |
418 | * d,i Print signed decimal number. There is no difference between d and i conversion. |
| 411 | * |
419 | * |
| 412 | * u Print unsigned decimal number. |
420 | * u Print unsigned decimal number. |
| 413 | * |
421 | * |
| 414 | * X, x Print hexadecimal number with upper- or lower-case. Prefix is not printed by default. |
422 | * X, x Print hexadecimal number with upper- or lower-case. Prefix is not printed by default. |
| 415 | * |
423 | * |
| 416 | * All other characters from @fmt except the formatting directives |
424 | * All other characters from fmt except the formatting directives |
| 417 | * are printed in verbatim. |
425 | * are printed in verbatim. |
| 418 | * |
426 | * |
| 419 | * @param fmt Formatting NULL terminated string. |
427 | * @param fmt Formatting NULL terminated string. |
| 420 | * @return Number of printed characters or negative value on failure. |
428 | * @return Number of printed characters or negative value on failure. |
| 421 | */ |
429 | */ |
| 422 | int printf(const char *fmt, ...) |
430 | int printf(const char *fmt, ...) |
| 423 | { |
431 | { |
| 424 | int irqpri; |
432 | int irqpri; |
| 425 | int i = 0, j = 0; /* i is index of currently processed char from fmt, j is index to the first not printed nonformating character */ |
433 | int i = 0, j = 0; /* i is index of currently processed char from fmt, j is index to the first not printed nonformating character */ |
| 426 | int end; |
434 | int end; |
| 427 | int counter; /* counter of printed characters */ |
435 | int counter; /* counter of printed characters */ |
| 428 | int retval; /* used to store return values from called functions */ |
436 | int retval; /* used to store return values from called functions */ |
| 429 | va_list ap; |
437 | va_list ap; |
| 430 | char c; |
438 | char c; |
| 431 | qualifier_t qualifier; /* type of argument */ |
439 | qualifier_t qualifier; /* type of argument */ |
| 432 | int base; /* base in which will be parameter (numbers only) printed */ |
440 | int base; /* base in which will be parameter (numbers only) printed */ |
| 433 | __u64 number; /* argument value */ |
441 | __u64 number; /* argument value */ |
| 434 | __native size; /* byte size of integer parameter */ |
442 | __native size; /* byte size of integer parameter */ |
| 435 | int width, precision; |
443 | int width, precision; |
| 436 | __u64 flags; |
444 | __u64 flags; |
| 437 | 445 | ||
| 438 | counter = 0; |
446 | counter = 0; |
| 439 | 447 | ||
| 440 | va_start(ap, fmt); |
448 | va_start(ap, fmt); |
| 441 | 449 | ||
| 442 | irqpri = interrupts_disable(); |
450 | irqpri = interrupts_disable(); |
| 443 | spinlock_lock(&printflock); |
451 | spinlock_lock(&printflock); |
| 444 | 452 | ||
| 445 | 453 | ||
| 446 | while ((c = fmt[i])) { |
454 | while ((c = fmt[i])) { |
| 447 | /* control character */ |
455 | /* control character */ |
| 448 | if (c == '%' ) { |
456 | if (c == '%' ) { |
| 449 | /* print common characters if any processed */ |
457 | /* print common characters if any processed */ |
| 450 | if (i > j) { |
458 | if (i > j) { |
| 451 | if ((retval = putnchars(&fmt[j], (__native)(i - j))) == EOF) { /* error */ |
459 | if ((retval = putnchars(&fmt[j], (__native)(i - j))) == EOF) { /* error */ |
| 452 | counter = -counter; |
460 | counter = -counter; |
| 453 | goto out; |
461 | goto out; |
| 454 | } |
462 | } |
| 455 | counter += retval; |
463 | counter += retval; |
| 456 | } |
464 | } |
| 457 | 465 | ||
| 458 | j = i; |
466 | j = i; |
| 459 | /* parse modifiers */ |
467 | /* parse modifiers */ |
| 460 | flags = 0; |
468 | flags = 0; |
| 461 | end = 0; |
469 | end = 0; |
| 462 | 470 | ||
| 463 | do { |
471 | do { |
| 464 | ++i; |
472 | ++i; |
| 465 | switch (c = fmt[i]) { |
473 | switch (c = fmt[i]) { |
| 466 | case '#': flags |= __PRINTF_FLAG_PREFIX; break; |
474 | case '#': flags |= __PRINTF_FLAG_PREFIX; break; |
| 467 | case '-': flags |= __PRINTF_FLAG_LEFTALIGNED; break; |
475 | case '-': flags |= __PRINTF_FLAG_LEFTALIGNED; break; |
| 468 | case '+': flags |= __PRINTF_FLAG_SHOWPLUS; break; |
476 | case '+': flags |= __PRINTF_FLAG_SHOWPLUS; break; |
| 469 | case ' ': flags |= __PRINTF_FLAG_SPACESIGN; break; |
477 | case ' ': flags |= __PRINTF_FLAG_SPACESIGN; break; |
| 470 | case '0': flags |= __PRINTF_FLAG_ZEROPADDED; break; |
478 | case '0': flags |= __PRINTF_FLAG_ZEROPADDED; break; |
| 471 | default: end = 1; |
479 | default: end = 1; |
| 472 | }; |
480 | }; |
| 473 | 481 | ||
| 474 | } while (end == 0); |
482 | } while (end == 0); |
| 475 | 483 | ||
| 476 | /* width & '*' operator */ |
484 | /* width & '*' operator */ |
| 477 | width = 0; |
485 | width = 0; |
| 478 | if (isdigit(fmt[i])) { |
486 | if (isdigit(fmt[i])) { |
| 479 | while (isdigit(fmt[i])) { |
487 | while (isdigit(fmt[i])) { |
| 480 | width *= 10; |
488 | width *= 10; |
| 481 | width += fmt[i++] - '0'; |
489 | width += fmt[i++] - '0'; |
| 482 | } |
490 | } |
| 483 | } else if (fmt[i] == '*') { |
491 | } else if (fmt[i] == '*') { |
| 484 | /* get width value from argument list*/ |
492 | /* get width value from argument list*/ |
| 485 | i++; |
493 | i++; |
| 486 | width = (int)va_arg(ap, int); |
494 | width = (int)va_arg(ap, int); |
| 487 | if (width < 0) { |
495 | if (width < 0) { |
| 488 | /* negative width means to set '-' flag */ |
496 | /* negative width means to set '-' flag */ |
| 489 | width *= -1; |
497 | width *= -1; |
| 490 | flags |= __PRINTF_FLAG_LEFTALIGNED; |
498 | flags |= __PRINTF_FLAG_LEFTALIGNED; |
| 491 | } |
499 | } |
| 492 | } |
500 | } |
| 493 | 501 | ||
| 494 | /* precision and '*' operator */ |
502 | /* precision and '*' operator */ |
| 495 | precision = 0; |
503 | precision = 0; |
| 496 | if (fmt[i] == '.') { |
504 | if (fmt[i] == '.') { |
| 497 | ++i; |
505 | ++i; |
| 498 | if (isdigit(fmt[i])) { |
506 | if (isdigit(fmt[i])) { |
| 499 | while (isdigit(fmt[i])) { |
507 | while (isdigit(fmt[i])) { |
| 500 | precision *= 10; |
508 | precision *= 10; |
| 501 | precision += fmt[i++] - '0'; |
509 | precision += fmt[i++] - '0'; |
| 502 | } |
510 | } |
| 503 | } else if (fmt[i] == '*') { |
511 | } else if (fmt[i] == '*') { |
| 504 | /* get precision value from argument list*/ |
512 | /* get precision value from argument list*/ |
| 505 | i++; |
513 | i++; |
| 506 | precision = (int)va_arg(ap, int); |
514 | precision = (int)va_arg(ap, int); |
| 507 | if (precision < 0) { |
515 | if (precision < 0) { |
| 508 | /* negative precision means to ignore it */ |
516 | /* negative precision means to ignore it */ |
| 509 | precision = 0; |
517 | precision = 0; |
| 510 | } |
518 | } |
| 511 | } |
519 | } |
| 512 | } |
520 | } |
| 513 | 521 | ||
| 514 | switch (fmt[i++]) { |
522 | switch (fmt[i++]) { |
| 515 | /** TODO: unimplemented qualifiers: |
523 | /** TODO: unimplemented qualifiers: |
| 516 | * t ptrdiff_t - ISO C 99 |
524 | * t ptrdiff_t - ISO C 99 |
| 517 | */ |
525 | */ |
| 518 | case 'h': /* char or short */ |
526 | case 'h': /* char or short */ |
| 519 | qualifier = PrintfQualifierShort; |
527 | qualifier = PrintfQualifierShort; |
| 520 | if (fmt[i] == 'h') { |
528 | if (fmt[i] == 'h') { |
| 521 | i++; |
529 | i++; |
| 522 | qualifier = PrintfQualifierByte; |
530 | qualifier = PrintfQualifierByte; |
| 523 | } |
531 | } |
| 524 | break; |
532 | break; |
| 525 | case 'l': /* long or long long*/ |
533 | case 'l': /* long or long long*/ |
| 526 | qualifier = PrintfQualifierLong; |
534 | qualifier = PrintfQualifierLong; |
| 527 | if (fmt[i] == 'l') { |
535 | if (fmt[i] == 'l') { |
| 528 | i++; |
536 | i++; |
| 529 | qualifier = PrintfQualifierLongLong; |
537 | qualifier = PrintfQualifierLongLong; |
| 530 | } |
538 | } |
| 531 | break; |
539 | break; |
| 532 | case 'z': /* __native */ |
540 | case 'z': /* __native */ |
| 533 | qualifier = PrintfQualifierNative; |
541 | qualifier = PrintfQualifierNative; |
| 534 | break; |
542 | break; |
| 535 | default: |
543 | default: |
| 536 | qualifier = PrintfQualifierInt; /* default type */ |
544 | qualifier = PrintfQualifierInt; /* default type */ |
| 537 | --i; |
545 | --i; |
| 538 | } |
546 | } |
| 539 | 547 | ||
| 540 | base = 10; |
548 | base = 10; |
| 541 | 549 | ||
| 542 | switch (c = fmt[i]) { |
550 | switch (c = fmt[i]) { |
| 543 | 551 | ||
| 544 | /* |
552 | /* |
| 545 | * String and character conversions. |
553 | * String and character conversions. |
| 546 | */ |
554 | */ |
| 547 | case 's': |
555 | case 's': |
| 548 | if ((retval = print_string(va_arg(ap, char*), width, precision, flags)) == EOF) { |
556 | if ((retval = print_string(va_arg(ap, char*), width, precision, flags)) == EOF) { |
| 549 | counter = -counter; |
557 | counter = -counter; |
| 550 | goto out; |
558 | goto out; |
| 551 | }; |
559 | }; |
| 552 | 560 | ||
| 553 | counter += retval; |
561 | counter += retval; |
| 554 | j = i + 1; |
562 | j = i + 1; |
| 555 | goto next_char; |
563 | goto next_char; |
| 556 | case 'c': |
564 | case 'c': |
| 557 | c = va_arg(ap, unsigned int); |
565 | c = va_arg(ap, unsigned int); |
| 558 | if ((retval = print_char(c, width, flags )) == EOF) { |
566 | if ((retval = print_char(c, width, flags )) == EOF) { |
| 559 | counter = -counter; |
567 | counter = -counter; |
| 560 | goto out; |
568 | goto out; |
| 561 | }; |
569 | }; |
| 562 | 570 | ||
| 563 | counter += retval; |
571 | counter += retval; |
| 564 | j = i + 1; |
572 | j = i + 1; |
| 565 | goto next_char; |
573 | goto next_char; |
| 566 | 574 | ||
| 567 | /* |
575 | /* |
| 568 | * Integer values |
576 | * Integer values |
| 569 | */ |
577 | */ |
| 570 | case 'P': /* pointer */ |
578 | case 'P': /* pointer */ |
| 571 | flags |= __PRINTF_FLAG_BIGCHARS; |
579 | flags |= __PRINTF_FLAG_BIGCHARS; |
| 572 | case 'p': |
580 | case 'p': |
| 573 | flags |= __PRINTF_FLAG_PREFIX; |
581 | flags |= __PRINTF_FLAG_PREFIX; |
| 574 | base = 16; |
582 | base = 16; |
| 575 | qualifier = PrintfQualifierPointer; |
583 | qualifier = PrintfQualifierPointer; |
| 576 | break; |
584 | break; |
| 577 | case 'b': |
585 | case 'b': |
| 578 | base = 2; |
586 | base = 2; |
| 579 | break; |
587 | break; |
| 580 | case 'o': |
588 | case 'o': |
| 581 | base = 8; |
589 | base = 8; |
| 582 | break; |
590 | break; |
| 583 | case 'd': |
591 | case 'd': |
| 584 | case 'i': |
592 | case 'i': |
| 585 | flags |= __PRINTF_FLAG_SIGNED; |
593 | flags |= __PRINTF_FLAG_SIGNED; |
| 586 | case 'u': |
594 | case 'u': |
| 587 | break; |
595 | break; |
| 588 | case 'X': |
596 | case 'X': |
| 589 | flags |= __PRINTF_FLAG_BIGCHARS; |
597 | flags |= __PRINTF_FLAG_BIGCHARS; |
| 590 | case 'x': |
598 | case 'x': |
| 591 | base = 16; |
599 | base = 16; |
| 592 | break; |
600 | break; |
| 593 | /* percentile itself */ |
601 | /* percentile itself */ |
| 594 | case '%': |
602 | case '%': |
| 595 | j = i; |
603 | j = i; |
| 596 | goto next_char; |
604 | goto next_char; |
| 597 | /* |
605 | /* |
| 598 | * Bad formatting. |
606 | * Bad formatting. |
| 599 | */ |
607 | */ |
| 600 | default: |
608 | default: |
| 601 | /* Unknown format |
609 | /* Unknown format |
| 602 | * now, the j is index of '%' so we will |
610 | * now, the j is index of '%' so we will |
| 603 | * print whole bad format sequence |
611 | * print whole bad format sequence |
| 604 | */ |
612 | */ |
| 605 | goto next_char; |
613 | goto next_char; |
| 606 | } |
614 | } |
| 607 | 615 | ||
| 608 | 616 | ||
| 609 | /* Print integers */ |
617 | /* Print integers */ |
| 610 | /* print number */ |
618 | /* print number */ |
| 611 | switch (qualifier) { |
619 | switch (qualifier) { |
| 612 | case PrintfQualifierByte: |
620 | case PrintfQualifierByte: |
| 613 | size = sizeof(unsigned char); |
621 | size = sizeof(unsigned char); |
| 614 | number = (__u64)va_arg(ap, unsigned int); |
622 | number = (__u64)va_arg(ap, unsigned int); |
| 615 | break; |
623 | break; |
| 616 | case PrintfQualifierShort: |
624 | case PrintfQualifierShort: |
| 617 | size = sizeof(unsigned short); |
625 | size = sizeof(unsigned short); |
| 618 | number = (__u64)va_arg(ap, unsigned int); |
626 | number = (__u64)va_arg(ap, unsigned int); |
| 619 | break; |
627 | break; |
| 620 | case PrintfQualifierInt: |
628 | case PrintfQualifierInt: |
| 621 | size = sizeof(unsigned int); |
629 | size = sizeof(unsigned int); |
| 622 | number = (__u64)va_arg(ap, unsigned int); |
630 | number = (__u64)va_arg(ap, unsigned int); |
| 623 | break; |
631 | break; |
| 624 | case PrintfQualifierLong: |
632 | case PrintfQualifierLong: |
| 625 | size = sizeof(unsigned long); |
633 | size = sizeof(unsigned long); |
| 626 | number = (__u64)va_arg(ap, unsigned long); |
634 | number = (__u64)va_arg(ap, unsigned long); |
| 627 | break; |
635 | break; |
| 628 | case PrintfQualifierLongLong: |
636 | case PrintfQualifierLongLong: |
| 629 | size = sizeof(unsigned long long); |
637 | size = sizeof(unsigned long long); |
| 630 | number = (__u64)va_arg(ap, unsigned long long); |
638 | number = (__u64)va_arg(ap, unsigned long long); |
| 631 | break; |
639 | break; |
| 632 | case PrintfQualifierPointer: |
640 | case PrintfQualifierPointer: |
| 633 | size = sizeof(void *); |
641 | size = sizeof(void *); |
| 634 | number = (__u64)(unsigned long)va_arg(ap, void *); |
642 | number = (__u64)(unsigned long)va_arg(ap, void *); |
| 635 | break; |
643 | break; |
| 636 | case PrintfQualifierNative: |
644 | case PrintfQualifierNative: |
| 637 | size = sizeof(__native); |
645 | size = sizeof(__native); |
| 638 | number = (__u64)va_arg(ap, __native); |
646 | number = (__u64)va_arg(ap, __native); |
| 639 | break; |
647 | break; |
| 640 | default: /* Unknown qualifier */ |
648 | default: /* Unknown qualifier */ |
| 641 | counter = -counter; |
649 | counter = -counter; |
| 642 | goto out; |
650 | goto out; |
| 643 | 651 | ||
| 644 | } |
652 | } |
| 645 | 653 | ||
| 646 | if (flags & __PRINTF_FLAG_SIGNED) { |
654 | if (flags & __PRINTF_FLAG_SIGNED) { |
| 647 | if (number & (0x1 << (size*8 - 1))) { |
655 | if (number & (0x1 << (size*8 - 1))) { |
| 648 | flags |= __PRINTF_FLAG_NEGATIVE; |
656 | flags |= __PRINTF_FLAG_NEGATIVE; |
| 649 | 657 | ||
| 650 | if (size == sizeof(__u64)) { |
658 | if (size == sizeof(__u64)) { |
| 651 | number = -((__s64)number); |
659 | number = -((__s64)number); |
| 652 | } else { |
660 | } else { |
| 653 | number = ~number; |
661 | number = ~number; |
| 654 | number &= (~((0xFFFFFFFFFFFFFFFFll) << (size * 8))); |
662 | number &= (~((0xFFFFFFFFFFFFFFFFll) << (size * 8))); |
| 655 | number++; |
663 | number++; |
| 656 | } |
664 | } |
| 657 | } |
665 | } |
| 658 | } |
666 | } |
| 659 | 667 | ||
| 660 | if ((retval = print_number(number, width, precision, base, flags)) == EOF ) { |
668 | if ((retval = print_number(number, width, precision, base, flags)) == EOF ) { |
| 661 | counter = -counter; |
669 | counter = -counter; |
| 662 | goto out; |
670 | goto out; |
| 663 | }; |
671 | }; |
| 664 | 672 | ||
| 665 | counter += retval; |
673 | counter += retval; |
| 666 | j = i + 1; |
674 | j = i + 1; |
| 667 | } |
675 | } |
| 668 | next_char: |
676 | next_char: |
| 669 | 677 | ||
| 670 | ++i; |
678 | ++i; |
| 671 | } |
679 | } |
| 672 | 680 | ||
| 673 | if (i > j) { |
681 | if (i > j) { |
| 674 | if ((retval = putnchars(&fmt[j], (__native)(i - j))) == EOF) { /* error */ |
682 | if ((retval = putnchars(&fmt[j], (__native)(i - j))) == EOF) { /* error */ |
| 675 | counter = -counter; |
683 | counter = -counter; |
| 676 | goto out; |
684 | goto out; |
| 677 | } |
685 | } |
| 678 | counter += retval; |
686 | counter += retval; |
| 679 | } |
687 | } |
| 680 | out: |
688 | out: |
| 681 | spinlock_unlock(&printflock); |
689 | spinlock_unlock(&printflock); |
| 682 | interrupts_restore(irqpri); |
690 | interrupts_restore(irqpri); |
| 683 | 691 | ||
| 684 | va_end(ap); |
692 | va_end(ap); |
| 685 | return counter; |
693 | return counter; |
| 686 | } |
694 | } |
| 687 | 695 | ||