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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 | /** |
30 | /** |
| 31 | * @file print.c |
31 | * @file print.c |
| 32 | * @brief Printing functions. |
32 | * @brief Printing functions. |
| 33 | */ |
33 | */ |
| 34 | 34 | ||
| 35 | #include <printf/printf_core.h> |
35 | #include <printf/printf_core.h> |
| 36 | #include <putchar.h> |
36 | #include <putchar.h> |
| 37 | #include <print.h> |
37 | #include <print.h> |
| 38 | #include <synch/spinlock.h> |
38 | #include <synch/spinlock.h> |
| 39 | #include <arch/arg.h> |
39 | #include <arch/arg.h> |
| 40 | #include <arch/asm.h> |
40 | #include <arch/asm.h> |
| 41 | 41 | ||
| 42 | #include <arch.h> |
42 | #include <arch.h> |
| 43 | 43 | ||
| 44 | SPINLOCK_INITIALIZE(printflock); /**< printf spinlock */ |
44 | SPINLOCK_INITIALIZE(printflock); /**< printf spinlock */ |
| 45 | 45 | ||
| 46 | #define __PRINTF_FLAG_PREFIX 0x00000001 /**< show prefixes 0x or 0*/ |
46 | #define __PRINTF_FLAG_PREFIX 0x00000001 /**< show prefixes 0x or 0*/ |
| 47 | #define __PRINTF_FLAG_SIGNED 0x00000002 /**< signed / unsigned number */ |
47 | #define __PRINTF_FLAG_SIGNED 0x00000002 /**< signed / unsigned number */ |
| 48 | #define __PRINTF_FLAG_ZEROPADDED 0x00000004 /**< print leading zeroes */ |
48 | #define __PRINTF_FLAG_ZEROPADDED 0x00000004 /**< print leading zeroes */ |
| 49 | #define __PRINTF_FLAG_LEFTALIGNED 0x00000010 /**< align to left */ |
49 | #define __PRINTF_FLAG_LEFTALIGNED 0x00000010 /**< align to left */ |
| 50 | #define __PRINTF_FLAG_SHOWPLUS 0x00000020 /**< always show + sign */ |
50 | #define __PRINTF_FLAG_SHOWPLUS 0x00000020 /**< always show + sign */ |
| 51 | #define __PRINTF_FLAG_SPACESIGN 0x00000040 /**< print space instead of plus */ |
51 | #define __PRINTF_FLAG_SPACESIGN 0x00000040 /**< print space instead of plus */ |
| 52 | #define __PRINTF_FLAG_BIGCHARS 0x00000080 /**< show big characters */ |
52 | #define __PRINTF_FLAG_BIGCHARS 0x00000080 /**< show big characters */ |
| 53 | #define __PRINTF_FLAG_NEGATIVE 0x00000100 /**< number has - sign */ |
53 | #define __PRINTF_FLAG_NEGATIVE 0x00000100 /**< number has - sign */ |
| 54 | 54 | ||
| 55 | #define PRINT_NUMBER_BUFFER_SIZE (64+5) /**< Buffer big enought for 64 bit number |
55 | #define PRINT_NUMBER_BUFFER_SIZE (64+5) /**< Buffer big enought for 64 bit number |
| 56 | * printed in base 2, sign, prefix and |
56 | * printed in base 2, sign, prefix and |
| 57 | * 0 to terminate string.. (last one is only for better testing |
57 | * 0 to terminate string.. (last one is only for better testing |
| 58 | * end of buffer by zero-filling subroutine)*/ |
58 | * end of buffer by zero-filling subroutine)*/ |
| 59 | 59 | ||
| 60 | /** Enumeration of possible arguments types. |
60 | /** Enumeration of possible arguments types. |
| 61 | */ |
61 | */ |
| 62 | typedef enum { |
62 | typedef enum { |
| 63 | PrintfQualifierByte = 0, |
63 | PrintfQualifierByte = 0, |
| 64 | PrintfQualifierShort, |
64 | PrintfQualifierShort, |
| 65 | PrintfQualifierInt, |
65 | PrintfQualifierInt, |
| 66 | PrintfQualifierLong, |
66 | PrintfQualifierLong, |
| 67 | PrintfQualifierLongLong, |
67 | PrintfQualifierLongLong, |
| 68 | PrintfQualifierNative, |
68 | PrintfQualifierNative, |
| 69 | PrintfQualifierPointer |
69 | PrintfQualifierPointer |
| 70 | } qualifier_t; |
70 | } qualifier_t; |
| 71 | 71 | ||
| 72 | static char digits_small[] = "0123456789abcdef"; /**< Small hexadecimal characters */ |
72 | static char digits_small[] = "0123456789abcdef"; /**< Small hexadecimal characters */ |
| 73 | static char digits_big[] = "0123456789ABCDEF"; /**< Big hexadecimal characters */ |
73 | static char digits_big[] = "0123456789ABCDEF"; /**< Big hexadecimal characters */ |
| 74 | 74 | ||
| 75 | /** Checks c for a digit. |
75 | /** Checks c for a digit. |
| 76 | * @param c One character. |
76 | * @param c One character. |
| 77 | * @return nonzero if c is from interval '0 to '9'. |
77 | * @return nonzero if c is from interval '0 to '9'. |
| 78 | */ |
78 | */ |
| 79 | static inline int isdigit(int c) |
79 | static inline int isdigit(int c) |
| 80 | { |
80 | { |
| 81 | return ((c >= '0' )&&( c <= '9')); |
81 | return ((c >= '0' )&&( c <= '9')); |
| 82 | } |
82 | } |
| 83 | 83 | ||
| 84 | /** Compute length of given zero terminated string. |
84 | /** Compute length of given zero terminated string. |
| 85 | * @param str Pointer to valid string. |
85 | * @param str Pointer to valid string. |
| 86 | * @return string length without trailing zero. |
86 | * @return string length without trailing zero. |
| 87 | */ |
87 | */ |
| 88 | static __native strlen(const char *str) |
88 | static __native strlen(const char *str) |
| 89 | { |
89 | { |
| 90 | __native counter = 0; |
90 | __native counter = 0; |
| 91 | 91 | ||
| 92 | while (str[counter] != 0) { |
92 | while (str[counter] != 0) { |
| 93 | counter++; |
93 | counter++; |
| 94 | } |
94 | } |
| 95 | 95 | ||
| 96 | return counter; |
96 | return counter; |
| 97 | } |
97 | } |
| 98 | 98 | ||
| 99 | /** Print count chars from buffer without adding newline |
99 | /** Print count chars from buffer without adding newline |
| 100 | * @param buf Buffer with size at least count bytes - NULL pointer NOT allowed! |
100 | * @param buf Buffer with size at least count bytes - NULL pointer NOT allowed! |
| 101 | * @param count |
101 | * @param count |
| 102 | * @param ps output method and its data |
102 | * @param ps output method and its data |
| 103 | * @return 0 on success, EOF on fail |
103 | * @return number or printed characters |
| 104 | */ |
104 | */ |
| 105 | static int printf_putnchars(const char * buf, size_t count, struct printf_spec *ps) |
105 | static int printf_putnchars(const char * buf, size_t count, struct printf_spec *ps) |
| 106 | { |
106 | { |
| 107 | if (ps->write((void *)buf, count, ps->data) == count) { |
107 | return ps->write((void *)buf, count, ps->data); |
| 108 | return 0; |
- | |
| 109 | } |
- | |
| 110 | - | ||
| 111 | return EOF; |
- | |
| 112 | } |
108 | } |
| 113 | 109 | ||
| 114 | /** Print string without added newline |
110 | /** Print string without added newline |
| 115 | * @param str string to print |
111 | * @param str string to print |
| 116 | * @param ps write function specification and support data |
112 | * @param ps write function specification and support data |
| 117 | * @return 0 on success or EOF on fail |
113 | * @return number or printed characters |
| 118 | */ |
114 | */ |
| 119 | static int printf_putstr(const char * str, struct printf_spec *ps) |
115 | static int printf_putstr(const char * str, struct printf_spec *ps) |
| 120 | { |
116 | { |
| 121 | size_t count; |
117 | size_t count; |
| 122 | 118 | ||
| 123 | if (str == NULL) { |
119 | if (str == NULL) { |
| 124 | return printf_putnchars("(NULL)", 6, ps); |
120 | return printf_putnchars("(NULL)", 6, ps); |
| 125 | } |
121 | } |
| 126 | 122 | ||
| 127 | count = strlen(str); |
123 | count = strlen(str); |
| 128 | 124 | ||
| 129 | if (ps->write((void *) str, count, ps->data) == count) { |
125 | return ps->write((void *) str, count, ps->data); |
| 130 | return 0; |
- | |
| 131 | } |
- | |
| 132 | - | ||
| 133 | return EOF; |
- | |
| 134 | } |
126 | } |
| 135 | 127 | ||
| 136 | /** Print one character to output |
128 | /** Print one character to output |
| 137 | * @param c one character |
129 | * @param c one character |
| 138 | * @param ps output method |
130 | * @param ps output method |
| 139 | * @return printed character or EOF |
131 | * @return number or printed characters |
| 140 | */ |
132 | */ |
| 141 | static int printf_putchar(int c, struct printf_spec *ps) |
133 | static int printf_putchar(int c, struct printf_spec *ps) |
| 142 | { |
134 | { |
| 143 | unsigned char ch = c; |
135 | unsigned char ch = c; |
| 144 | 136 | ||
| 145 | if (ps->write((void *) &ch, 1, ps->data) == 1) { |
137 | return ps->write((void *) &ch, 1, ps->data); |
| 146 | return c; |
- | |
| 147 | } |
- | |
| 148 | - | ||
| 149 | return EOF; |
- | |
| 150 | } |
138 | } |
| 151 | 139 | ||
| 152 | /** Print one formatted character |
140 | /** Print one formatted character |
| 153 | * @param c character to print |
141 | * @param c character to print |
| 154 | * @param width |
142 | * @param width |
| 155 | * @param flags |
143 | * @param flags |
| 156 | * @return number of printed characters or EOF |
144 | * @return number of printed characters, negative value on fail |
| 157 | */ |
145 | */ |
| 158 | static int print_char(char c, int width, __u64 flags, struct printf_spec *ps) |
146 | static int print_char(char c, int width, __u64 flags, struct printf_spec *ps) |
| 159 | { |
147 | { |
| 160 | int counter = 0; |
148 | int counter = 0; |
| 161 | 149 | ||
| 162 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
150 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
| 163 | while (--width > 0) { /* one space is consumed by character itself hence predecrement */ |
151 | while (--width > 0) { /* one space is consumed by character itself hence predecrement */ |
| 164 | /* FIXME: painful slow */ |
152 | /* FIXME: painful slow */ |
| 165 | printf_putchar(' ', ps); |
153 | if (printf_putchar(' ', ps) > 0) |
| 166 | ++counter; |
154 | ++counter; |
| 167 | } |
155 | } |
| 168 | } |
156 | } |
| 169 | 157 | ||
| 170 | if (printf_putchar(c, ps) == EOF) { |
158 | if (printf_putchar(c, ps) > 0) |
| 171 | return EOF; |
159 | counter++; |
| 172 | } |
- | |
| 173 | 160 | ||
| 174 | while (--width > 0) { /* one space is consumed by character itself hence predecrement */ |
161 | while (--width > 0) { /* one space is consumed by character itself hence predecrement */ |
| 175 | printf_putchar(' ', ps); |
162 | if (printf_putchar(' ', ps) > 0) |
| 176 | ++counter; |
163 | ++counter; |
| 177 | } |
164 | } |
| 178 | 165 | ||
| 179 | return ++counter; |
166 | return ++counter; |
| 180 | } |
167 | } |
| 181 | 168 | ||
| 182 | /** Print one string |
169 | /** Print one string |
| 183 | * @param s string |
170 | * @param s string |
| 184 | * @param width |
171 | * @param width |
| 185 | * @param precision |
172 | * @param precision |
| 186 | * @param flags |
173 | * @param flags |
| 187 | * @return number of printed characters or EOF |
174 | * @return number of printed characters or negative value on fail |
| 188 | */ |
175 | */ |
| 189 | 176 | ||
| 190 | static int print_string(char *s, int width, int precision, __u64 flags, struct printf_spec *ps) |
177 | static int print_string(char *s, int width, int precision, __u64 flags, struct printf_spec *ps) |
| 191 | { |
178 | { |
| 192 | int counter = 0; |
179 | int counter = 0; |
| 193 | size_t size; |
180 | size_t size; |
| - | 181 | int retval; |
|
| 194 | 182 | ||
| 195 | if (s == NULL) { |
183 | if (s == NULL) { |
| 196 | return printf_putstr("(NULL)", ps); |
184 | return printf_putstr("(NULL)", ps); |
| 197 | } |
185 | } |
| 198 | 186 | ||
| 199 | size = strlen(s); |
187 | size = strlen(s); |
| 200 | 188 | ||
| 201 | /* print leading spaces */ |
189 | /* print leading spaces */ |
| 202 | 190 | ||
| 203 | if (precision == 0) |
191 | if (precision == 0) |
| 204 | precision = size; |
192 | precision = size; |
| 205 | 193 | ||
| 206 | width -= precision; |
194 | width -= precision; |
| 207 | 195 | ||
| 208 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
196 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
| 209 | while (width-- > 0) { |
197 | while (width-- > 0) { |
| 210 | printf_putchar(' ', ps); |
198 | if (printf_putchar(' ', ps) == 1) |
| 211 | counter++; |
199 | counter++; |
| 212 | } |
200 | } |
| 213 | } |
201 | } |
| 214 | 202 | ||
| 215 | while (precision > size) { |
203 | while (precision > size) { |
| 216 | precision--; |
204 | precision--; |
| 217 | printf_putchar(' ', ps); |
205 | if (printf_putchar(' ', ps) == 1) |
| 218 | ++counter; |
206 | ++counter; |
| 219 | } |
207 | } |
| 220 | 208 | ||
| 221 | if (printf_putnchars(s, precision, ps) == EOF) { |
209 | if ((retval = printf_putnchars(s, precision, ps)) < 0) { |
| 222 | return EOF; |
210 | return -counter; |
| 223 | } |
211 | } |
| 224 | - | ||
| 225 | counter += precision; |
212 | counter += retval; |
| 226 | 213 | ||
| 227 | while (width-- > 0) { |
214 | while (width-- > 0) { |
| 228 | printf_putchar(' ', ps); |
215 | if (printf_putchar(' ', ps) == 1) |
| 229 | ++counter; |
216 | ++counter; |
| 230 | } |
217 | } |
| 231 | 218 | ||
| 232 | return ++counter; |
219 | return counter; |
| 233 | } |
220 | } |
| 234 | 221 | ||
| 235 | 222 | ||
| 236 | /** Print number in given base |
223 | /** Print number in given base |
| 237 | * |
224 | * |
| 238 | * Print significant digits of a number in given |
225 | * Print significant digits of a number in given |
| 239 | * base. |
226 | * base. |
| 240 | * |
227 | * |
| 241 | * @param num Number to print. |
228 | * @param num Number to print. |
| 242 | * @param width |
229 | * @param width |
| 243 | * @param precision |
230 | * @param precision |
| 244 | * @param base Base to print the number in (should |
231 | * @param base Base to print the number in (should |
| 245 | * be in range 2 .. 16). |
232 | * be in range 2 .. 16). |
| 246 | * @param flags output modifiers |
233 | * @param flags output modifiers |
| 247 | * @return number of written characters or EOF |
234 | * @return number of written characters or EOF |
| 248 | * |
235 | * |
| 249 | */ |
236 | */ |
| 250 | static int print_number(__u64 num, int width, int precision, int base , __u64 flags, struct printf_spec *ps) |
237 | static int print_number(__u64 num, int width, int precision, int base , __u64 flags, struct printf_spec *ps) |
| 251 | { |
238 | { |
| 252 | char *digits = digits_small; |
239 | char *digits = digits_small; |
| 253 | char d[PRINT_NUMBER_BUFFER_SIZE]; /* this is good enough even for base == 2, prefix and sign */ |
240 | char d[PRINT_NUMBER_BUFFER_SIZE]; /* this is good enough even for base == 2, prefix and sign */ |
| 254 | char *ptr = &d[PRINT_NUMBER_BUFFER_SIZE - 1]; |
241 | char *ptr = &d[PRINT_NUMBER_BUFFER_SIZE - 1]; |
| 255 | int size = 0; /* size of number with all prefixes and signs */ |
242 | int size = 0; /* size of number with all prefixes and signs */ |
| 256 | int number_size; /* size of plain number */ |
243 | int number_size; /* size of plain number */ |
| 257 | int written = 0; |
- | |
| 258 | char sgn; |
244 | char sgn; |
| - | 245 | int retval; |
|
| - | 246 | int counter = 0; |
|
| 259 | 247 | ||
| 260 | if (flags & __PRINTF_FLAG_BIGCHARS) |
248 | if (flags & __PRINTF_FLAG_BIGCHARS) |
| 261 | digits = digits_big; |
249 | digits = digits_big; |
| 262 | 250 | ||
| 263 | *ptr-- = 0; /* Put zero at end of string */ |
251 | *ptr-- = 0; /* Put zero at end of string */ |
| 264 | 252 | ||
| 265 | if (num == 0) { |
253 | if (num == 0) { |
| 266 | *ptr-- = '0'; |
254 | *ptr-- = '0'; |
| 267 | size++; |
255 | size++; |
| 268 | } else { |
256 | } else { |
| 269 | do { |
257 | do { |
| 270 | *ptr-- = digits[num % base]; |
258 | *ptr-- = digits[num % base]; |
| 271 | size++; |
259 | size++; |
| 272 | } while (num /= base); |
260 | } while (num /= base); |
| 273 | } |
261 | } |
| 274 | 262 | ||
| 275 | number_size = size; |
263 | number_size = size; |
| 276 | 264 | ||
| 277 | /* Collect sum of all prefixes/signs/... to calculate padding and leading zeroes */ |
265 | /* Collect sum of all prefixes/signs/... to calculate padding and leading zeroes */ |
| 278 | if (flags & __PRINTF_FLAG_PREFIX) { |
266 | if (flags & __PRINTF_FLAG_PREFIX) { |
| 279 | switch(base) { |
267 | switch(base) { |
| 280 | case 2: /* Binary formating is not standard, but usefull */ |
268 | case 2: /* Binary formating is not standard, but usefull */ |
| 281 | size += 2; |
269 | size += 2; |
| 282 | break; |
270 | break; |
| 283 | case 8: |
271 | case 8: |
| 284 | size++; |
272 | size++; |
| 285 | break; |
273 | break; |
| 286 | case 16: |
274 | case 16: |
| 287 | size += 2; |
275 | size += 2; |
| 288 | break; |
276 | break; |
| 289 | } |
277 | } |
| 290 | } |
278 | } |
| 291 | 279 | ||
| 292 | sgn = 0; |
280 | sgn = 0; |
| 293 | if (flags & __PRINTF_FLAG_SIGNED) { |
281 | if (flags & __PRINTF_FLAG_SIGNED) { |
| 294 | if (flags & __PRINTF_FLAG_NEGATIVE) { |
282 | if (flags & __PRINTF_FLAG_NEGATIVE) { |
| 295 | sgn = '-'; |
283 | sgn = '-'; |
| 296 | size++; |
284 | size++; |
| 297 | } else if (flags & __PRINTF_FLAG_SHOWPLUS) { |
285 | } else if (flags & __PRINTF_FLAG_SHOWPLUS) { |
| 298 | sgn = '+'; |
286 | sgn = '+'; |
| 299 | size++; |
287 | size++; |
| 300 | } else if (flags & __PRINTF_FLAG_SPACESIGN) { |
288 | } else if (flags & __PRINTF_FLAG_SPACESIGN) { |
| 301 | sgn = ' '; |
289 | sgn = ' '; |
| 302 | size++; |
290 | size++; |
| 303 | } |
291 | } |
| 304 | } |
292 | } |
| 305 | 293 | ||
| 306 | if (flags & __PRINTF_FLAG_LEFTALIGNED) { |
294 | if (flags & __PRINTF_FLAG_LEFTALIGNED) { |
| 307 | flags &= ~__PRINTF_FLAG_ZEROPADDED; |
295 | flags &= ~__PRINTF_FLAG_ZEROPADDED; |
| 308 | } |
296 | } |
| 309 | 297 | ||
| 310 | /* if number is leftaligned or precision is specified then zeropadding is ignored */ |
298 | /* if number is leftaligned or precision is specified then zeropadding is ignored */ |
| 311 | if (flags & __PRINTF_FLAG_ZEROPADDED) { |
299 | if (flags & __PRINTF_FLAG_ZEROPADDED) { |
| 312 | if ((precision == 0) && (width > size)) { |
300 | if ((precision == 0) && (width > size)) { |
| 313 | precision = width - size + number_size; |
301 | precision = width - size + number_size; |
| 314 | } |
302 | } |
| 315 | } |
303 | } |
| 316 | 304 | ||
| 317 | /* print leading spaces */ |
305 | /* print leading spaces */ |
| 318 | if (number_size > precision) /* We must print whole number not only a part */ |
306 | if (number_size > precision) /* We must print whole number not only a part */ |
| 319 | precision = number_size; |
307 | precision = number_size; |
| 320 | 308 | ||
| 321 | width -= precision + size - number_size; |
309 | width -= precision + size - number_size; |
| 322 | 310 | ||
| 323 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
311 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
| 324 | while (width-- > 0) { |
312 | while (width-- > 0) { |
| 325 | printf_putchar(' ', ps); |
313 | if (printf_putchar(' ', ps) == 1) |
| 326 | written++; |
314 | counter++; |
| 327 | } |
315 | } |
| 328 | } |
316 | } |
| 329 | 317 | ||
| - | 318 | ||
| 330 | /* print sign */ |
319 | /* print sign */ |
| 331 | if (sgn) { |
320 | if (sgn) { |
| 332 | printf_putchar(sgn, ps); |
321 | if (printf_putchar(sgn, ps) == 1) |
| 333 | written++; |
322 | counter++; |
| 334 | } |
323 | } |
| 335 | 324 | ||
| 336 | /* print prefix */ |
325 | /* print prefix */ |
| 337 | 326 | ||
| 338 | if (flags & __PRINTF_FLAG_PREFIX) { |
327 | if (flags & __PRINTF_FLAG_PREFIX) { |
| 339 | switch(base) { |
328 | switch(base) { |
| 340 | case 2: /* Binary formating is not standard, but usefull */ |
329 | case 2: /* Binary formating is not standard, but usefull */ |
| 341 | printf_putchar('0', ps); |
330 | if (printf_putchar('0', ps) == 1) |
| - | 331 | counter++; |
|
| 342 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
332 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
| 343 | printf_putchar('B', ps); |
333 | if (printf_putchar('B', ps) == 1) |
| - | 334 | counter++; |
|
| 344 | } else { |
335 | } else { |
| 345 | printf_putchar('b', ps); |
336 | if (printf_putchar('b', ps) == 1) |
| - | 337 | counter++; |
|
| 346 | } |
338 | } |
| 347 | written += 2; |
- | |
| 348 | break; |
339 | break; |
| 349 | case 8: |
340 | case 8: |
| 350 | printf_putchar('o', ps); |
341 | if (printf_putchar('o', ps) == 1) |
| 351 | written++; |
342 | counter++; |
| 352 | break; |
343 | break; |
| 353 | case 16: |
344 | case 16: |
| 354 | printf_putchar('0', ps); |
345 | if (printf_putchar('0', ps) == 1) |
| - | 346 | counter++; |
|
| 355 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
347 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
| 356 | printf_putchar('X', ps); |
348 | if (printf_putchar('X', ps) == 1) |
| - | 349 | counter++; |
|
| 357 | } else { |
350 | } else { |
| 358 | printf_putchar('x', ps); |
351 | if (printf_putchar('x', ps) == 1) |
| - | 352 | counter++; |
|
| 359 | } |
353 | } |
| 360 | written += 2; |
- | |
| 361 | break; |
354 | break; |
| 362 | } |
355 | } |
| 363 | } |
356 | } |
| 364 | 357 | ||
| 365 | /* print leading zeroes */ |
358 | /* print leading zeroes */ |
| 366 | precision -= number_size; |
359 | precision -= number_size; |
| 367 | while (precision-- > 0) { |
360 | while (precision-- > 0) { |
| 368 | printf_putchar('0', ps); |
361 | if (printf_putchar('0', ps) == 1) |
| 369 | written++; |
362 | counter++; |
| 370 | } |
363 | } |
| 371 | 364 | ||
| 372 | 365 | ||
| 373 | /* print number itself */ |
366 | /* print number itself */ |
| 374 | 367 | ||
| 375 | written += printf_putstr(++ptr, ps); |
368 | if ((retval = printf_putstr(++ptr, ps)) > 0) { |
| - | 369 | counter += retval; |
|
| - | 370 | } |
|
| 376 | 371 | ||
| 377 | /* print ending spaces */ |
372 | /* print ending spaces */ |
| 378 | 373 | ||
| 379 | while (width-- > 0) { |
374 | while (width-- > 0) { |
| 380 | printf_putchar(' ', ps); |
375 | if (printf_putchar(' ', ps) == 1) |
| 381 | written++; |
376 | counter++; |
| 382 | } |
377 | } |
| 383 | 378 | ||
| 384 | return written; |
379 | return counter; |
| 385 | } |
380 | } |
| 386 | 381 | ||
| 387 | 382 | ||
| 388 | /** Print formatted string. |
383 | /** Print formatted string. |
| 389 | * |
384 | * |
| 390 | * Print string formatted according to the fmt parameter |
385 | * Print string formatted according to the fmt parameter |
| 391 | * and variadic arguments. Each formatting directive |
386 | * and variadic arguments. Each formatting directive |
| 392 | * must have the following form: |
387 | * must have the following form: |
| 393 | * |
388 | * |
| 394 | * \% [ FLAGS ] [ WIDTH ] [ .PRECISION ] [ TYPE ] CONVERSION |
389 | * \% [ FLAGS ] [ WIDTH ] [ .PRECISION ] [ TYPE ] CONVERSION |
| 395 | * |
390 | * |
| 396 | * FLAGS:@n |
391 | * FLAGS:@n |
| 397 | * - "#" Force to print prefix. |
392 | * - "#" Force to print prefix. |
| 398 | * For conversion \%o the prefix is 0, for %x and \%X prefixes are 0x and 0X |
393 | * For conversion \%o the prefix is 0, for %x and \%X prefixes are 0x and 0X |
| 399 | * and for conversion \%b the prefix is 0b. |
394 | * and for conversion \%b the prefix is 0b. |
| 400 | * |
395 | * |
| 401 | * - "-" Align to left. |
396 | * - "-" Align to left. |
| 402 | * |
397 | * |
| 403 | * - "+" Print positive sign just as negative. |
398 | * - "+" Print positive sign just as negative. |
| 404 | * |
399 | * |
| 405 | * - " " If the printed number is positive and "+" flag is not set, print space in |
400 | * - " " If the printed number is positive and "+" flag is not set, print space in |
| 406 | * place of sign. |
401 | * place of sign. |
| 407 | * |
402 | * |
| 408 | * - "0" Print 0 as padding instead of spaces. Zeroes are placed between sign and the |
403 | * - "0" Print 0 as padding instead of spaces. Zeroes are placed between sign and the |
| 409 | * rest of the number. This flag is ignored if "-" flag is specified. |
404 | * rest of the number. This flag is ignored if "-" flag is specified. |
| 410 | * |
405 | * |
| 411 | * WIDTH:@n |
406 | * WIDTH:@n |
| 412 | * - Specify minimal width of printed argument. If it is bigger, width is ignored. |
407 | * - Specify minimal width of printed argument. If it is bigger, width is ignored. |
| 413 | * If width is specified with a "*" character instead of number, width is taken from |
408 | * If width is specified with a "*" character instead of number, width is taken from |
| 414 | * parameter list. And integer parameter is expected before parameter for processed |
409 | * parameter list. And integer parameter is expected before parameter for processed |
| 415 | * conversion specification. If this value is negative its absolute value is taken |
410 | * conversion specification. If this value is negative its absolute value is taken |
| 416 | * and the "-" flag is set. |
411 | * and the "-" flag is set. |
| 417 | * |
412 | * |
| 418 | * PRECISION:@n |
413 | * PRECISION:@n |
| 419 | * - Value precision. For numbers it specifies minimum valid numbers. |
414 | * - Value precision. For numbers it specifies minimum valid numbers. |
| 420 | * Smaller numbers are printed with leading zeroes. Bigger numbers are not affected. |
415 | * Smaller numbers are printed with leading zeroes. Bigger numbers are not affected. |
| 421 | * Strings with more than precision characters are cut off. |
416 | * Strings with more than precision characters are cut off. |
| 422 | * Just as with width, an "*" can be used used instead of a number. |
417 | * Just as with width, an "*" can be used used instead of a number. |
| 423 | * An integer value is then expected in parameters. When both width and precision |
418 | * An integer value is then expected in parameters. When both width and precision |
| 424 | * are specified using "*", the first parameter is used for width and the second one |
419 | * are specified using "*", the first parameter is used for width and the second one |
| 425 | * for precision. |
420 | * for precision. |
| 426 | * |
421 | * |
| 427 | * TYPE:@n |
422 | * TYPE:@n |
| 428 | * - "hh" Signed or unsigned char.@n |
423 | * - "hh" Signed or unsigned char.@n |
| 429 | * - "h" Signed or usigned short.@n |
424 | * - "h" Signed or usigned short.@n |
| 430 | * - "" Signed or usigned int (default value).@n |
425 | * - "" Signed or usigned int (default value).@n |
| 431 | * - "l" Signed or usigned long int.@n |
426 | * - "l" Signed or usigned long int.@n |
| 432 | * - "ll" Signed or usigned long long int.@n |
427 | * - "ll" Signed or usigned long long int.@n |
| 433 | * - "z" __native (non-standard extension).@n |
428 | * - "z" __native (non-standard extension).@n |
| 434 | * |
429 | * |
| 435 | * |
430 | * |
| 436 | * CONVERSION:@n |
431 | * CONVERSION:@n |
| 437 | * - % Print percentile character itself. |
432 | * - % Print percentile character itself. |
| 438 | * |
433 | * |
| 439 | * - c Print single character. |
434 | * - c Print single character. |
| 440 | * |
435 | * |
| 441 | * - s Print zero terminated string. If a NULL value is passed as value, "(NULL)" is printed instead. |
436 | * - s Print zero terminated string. If a NULL value is passed as value, "(NULL)" is printed instead. |
| 442 | * |
437 | * |
| 443 | * - P, p Print value of a pointer. Void * value is expected and it is printed in hexadecimal notation with prefix |
438 | * - P, p Print value of a pointer. Void * value is expected and it is printed in hexadecimal notation with prefix |
| 444 | * (as with \%#X or \%#x for 32bit or \%#X / \%#x for 64bit long pointers). |
439 | * (as with \%#X or \%#x for 32bit or \%#X / \%#x for 64bit long pointers). |
| 445 | * |
440 | * |
| 446 | * - b Print value as unsigned binary number. Prefix is not printed by default. (Nonstandard extension.) |
441 | * - b Print value as unsigned binary number. Prefix is not printed by default. (Nonstandard extension.) |
| 447 | * |
442 | * |
| 448 | * - o Print value as unsigned octal number. Prefix is not printed by default. |
443 | * - o Print value as unsigned octal number. Prefix is not printed by default. |
| 449 | * |
444 | * |
| 450 | * - d,i Print signed decimal number. There is no difference between d and i conversion. |
445 | * - d,i Print signed decimal number. There is no difference between d and i conversion. |
| 451 | * |
446 | * |
| 452 | * - u Print unsigned decimal number. |
447 | * - u Print unsigned decimal number. |
| 453 | * |
448 | * |
| 454 | * - X, x Print hexadecimal number with upper- or lower-case. Prefix is not printed by default. |
449 | * - X, x Print hexadecimal number with upper- or lower-case. Prefix is not printed by default. |
| 455 | * |
450 | * |
| 456 | * All other characters from fmt except the formatting directives |
451 | * All other characters from fmt except the formatting directives |
| 457 | * are printed in verbatim. |
452 | * are printed in verbatim. |
| 458 | * |
453 | * |
| 459 | * @param fmt Formatting NULL terminated string. |
454 | * @param fmt Formatting NULL terminated string. |
| 460 | * @return Number of printed characters or negative value on failure. |
455 | * @return Number of printed characters or negative value on failure. |
| 461 | */ |
456 | */ |
| 462 | int printf_core(const char *fmt, struct printf_spec *ps, va_list ap) |
457 | int printf_core(const char *fmt, struct printf_spec *ps, va_list ap) |
| 463 | { |
458 | { |
| 464 | int irqpri; |
459 | int irqpri; |
| 465 | int i = 0, j = 0; /**< i is index of currently processed char from fmt, j is index to the first not printed nonformating character */ |
460 | int i = 0, j = 0; /**< i is index of currently processed char from fmt, j is index to the first not printed nonformating character */ |
| 466 | int end; |
461 | int end; |
| 467 | int counter; /**< counter of printed characters */ |
462 | int counter; /**< counter of printed characters */ |
| 468 | int retval; /**< used to store return values from called functions */ |
463 | int retval; /**< used to store return values from called functions */ |
| 469 | char c; |
464 | char c; |
| 470 | qualifier_t qualifier; /* type of argument */ |
465 | qualifier_t qualifier; /* type of argument */ |
| 471 | int base; /**< base in which will be parameter (numbers only) printed */ |
466 | int base; /**< base in which will be parameter (numbers only) printed */ |
| 472 | __u64 number; /**< argument value */ |
467 | __u64 number; /**< argument value */ |
| 473 | size_t size; /**< byte size of integer parameter */ |
468 | size_t size; /**< byte size of integer parameter */ |
| 474 | int width, precision; |
469 | int width, precision; |
| 475 | __u64 flags; |
470 | __u64 flags; |
| 476 | 471 | ||
| 477 | counter = 0; |
472 | counter = 0; |
| 478 | 473 | ||
| 479 | irqpri = interrupts_disable(); |
474 | irqpri = interrupts_disable(); |
| 480 | spinlock_lock(&printflock); |
475 | spinlock_lock(&printflock); |
| 481 | 476 | ||
| 482 | while ((c = fmt[i])) { |
477 | while ((c = fmt[i])) { |
| 483 | /* control character */ |
478 | /* control character */ |
| 484 | if (c == '%' ) { |
479 | if (c == '%' ) { |
| 485 | /* print common characters if any processed */ |
480 | /* print common characters if any processed */ |
| 486 | if (i > j) { |
481 | if (i > j) { |
| 487 | if ((retval = printf_putnchars(&fmt[j], (size_t)(i - j), ps)) == EOF) { /* error */ |
482 | if ((retval = printf_putnchars(&fmt[j], (size_t)(i - j), ps)) < 0) { /* error */ |
| 488 | counter = -counter; |
483 | counter = -counter; |
| 489 | goto out; |
484 | goto out; |
| 490 | } |
485 | } |
| 491 | counter += retval; |
486 | counter += retval; |
| 492 | } |
487 | } |
| 493 | 488 | ||
| 494 | j = i; |
489 | j = i; |
| 495 | /* parse modifiers */ |
490 | /* parse modifiers */ |
| 496 | flags = 0; |
491 | flags = 0; |
| 497 | end = 0; |
492 | end = 0; |
| 498 | 493 | ||
| 499 | do { |
494 | do { |
| 500 | ++i; |
495 | ++i; |
| 501 | switch (c = fmt[i]) { |
496 | switch (c = fmt[i]) { |
| 502 | case '#': flags |= __PRINTF_FLAG_PREFIX; break; |
497 | case '#': flags |= __PRINTF_FLAG_PREFIX; break; |
| 503 | case '-': flags |= __PRINTF_FLAG_LEFTALIGNED; break; |
498 | case '-': flags |= __PRINTF_FLAG_LEFTALIGNED; break; |
| 504 | case '+': flags |= __PRINTF_FLAG_SHOWPLUS; break; |
499 | case '+': flags |= __PRINTF_FLAG_SHOWPLUS; break; |
| 505 | case ' ': flags |= __PRINTF_FLAG_SPACESIGN; break; |
500 | case ' ': flags |= __PRINTF_FLAG_SPACESIGN; break; |
| 506 | case '0': flags |= __PRINTF_FLAG_ZEROPADDED; break; |
501 | case '0': flags |= __PRINTF_FLAG_ZEROPADDED; break; |
| 507 | default: end = 1; |
502 | default: end = 1; |
| 508 | }; |
503 | }; |
| 509 | 504 | ||
| 510 | } while (end == 0); |
505 | } while (end == 0); |
| 511 | 506 | ||
| 512 | /* width & '*' operator */ |
507 | /* width & '*' operator */ |
| 513 | width = 0; |
508 | width = 0; |
| 514 | if (isdigit(fmt[i])) { |
509 | if (isdigit(fmt[i])) { |
| 515 | while (isdigit(fmt[i])) { |
510 | while (isdigit(fmt[i])) { |
| 516 | width *= 10; |
511 | width *= 10; |
| 517 | width += fmt[i++] - '0'; |
512 | width += fmt[i++] - '0'; |
| 518 | } |
513 | } |
| 519 | } else if (fmt[i] == '*') { |
514 | } else if (fmt[i] == '*') { |
| 520 | /* get width value from argument list*/ |
515 | /* get width value from argument list*/ |
| 521 | i++; |
516 | i++; |
| 522 | width = (int)va_arg(ap, int); |
517 | width = (int)va_arg(ap, int); |
| 523 | if (width < 0) { |
518 | if (width < 0) { |
| 524 | /* negative width means to set '-' flag */ |
519 | /* negative width means to set '-' flag */ |
| 525 | width *= -1; |
520 | width *= -1; |
| 526 | flags |= __PRINTF_FLAG_LEFTALIGNED; |
521 | flags |= __PRINTF_FLAG_LEFTALIGNED; |
| 527 | } |
522 | } |
| 528 | } |
523 | } |
| 529 | 524 | ||
| 530 | /* precision and '*' operator */ |
525 | /* precision and '*' operator */ |
| 531 | precision = 0; |
526 | precision = 0; |
| 532 | if (fmt[i] == '.') { |
527 | if (fmt[i] == '.') { |
| 533 | ++i; |
528 | ++i; |
| 534 | if (isdigit(fmt[i])) { |
529 | if (isdigit(fmt[i])) { |
| 535 | while (isdigit(fmt[i])) { |
530 | while (isdigit(fmt[i])) { |
| 536 | precision *= 10; |
531 | precision *= 10; |
| 537 | precision += fmt[i++] - '0'; |
532 | precision += fmt[i++] - '0'; |
| 538 | } |
533 | } |
| 539 | } else if (fmt[i] == '*') { |
534 | } else if (fmt[i] == '*') { |
| 540 | /* get precision value from argument list*/ |
535 | /* get precision value from argument list*/ |
| 541 | i++; |
536 | i++; |
| 542 | precision = (int)va_arg(ap, int); |
537 | precision = (int)va_arg(ap, int); |
| 543 | if (precision < 0) { |
538 | if (precision < 0) { |
| 544 | /* negative precision means to ignore it */ |
539 | /* negative precision means to ignore it */ |
| 545 | precision = 0; |
540 | precision = 0; |
| 546 | } |
541 | } |
| 547 | } |
542 | } |
| 548 | } |
543 | } |
| 549 | 544 | ||
| 550 | switch (fmt[i++]) { |
545 | switch (fmt[i++]) { |
| 551 | /** TODO: unimplemented qualifiers: |
546 | /** TODO: unimplemented qualifiers: |
| 552 | * t ptrdiff_t - ISO C 99 |
547 | * t ptrdiff_t - ISO C 99 |
| 553 | */ |
548 | */ |
| 554 | case 'h': /* char or short */ |
549 | case 'h': /* char or short */ |
| 555 | qualifier = PrintfQualifierShort; |
550 | qualifier = PrintfQualifierShort; |
| 556 | if (fmt[i] == 'h') { |
551 | if (fmt[i] == 'h') { |
| 557 | i++; |
552 | i++; |
| 558 | qualifier = PrintfQualifierByte; |
553 | qualifier = PrintfQualifierByte; |
| 559 | } |
554 | } |
| 560 | break; |
555 | break; |
| 561 | case 'l': /* long or long long*/ |
556 | case 'l': /* long or long long*/ |
| 562 | qualifier = PrintfQualifierLong; |
557 | qualifier = PrintfQualifierLong; |
| 563 | if (fmt[i] == 'l') { |
558 | if (fmt[i] == 'l') { |
| 564 | i++; |
559 | i++; |
| 565 | qualifier = PrintfQualifierLongLong; |
560 | qualifier = PrintfQualifierLongLong; |
| 566 | } |
561 | } |
| 567 | break; |
562 | break; |
| 568 | case 'z': /* __native */ |
563 | case 'z': /* __native */ |
| 569 | qualifier = PrintfQualifierNative; |
564 | qualifier = PrintfQualifierNative; |
| 570 | break; |
565 | break; |
| 571 | default: |
566 | default: |
| 572 | qualifier = PrintfQualifierInt; /* default type */ |
567 | qualifier = PrintfQualifierInt; /* default type */ |
| 573 | --i; |
568 | --i; |
| 574 | } |
569 | } |
| 575 | 570 | ||
| 576 | base = 10; |
571 | base = 10; |
| 577 | 572 | ||
| 578 | switch (c = fmt[i]) { |
573 | switch (c = fmt[i]) { |
| 579 | 574 | ||
| 580 | /* |
575 | /* |
| 581 | * String and character conversions. |
576 | * String and character conversions. |
| 582 | */ |
577 | */ |
| 583 | case 's': |
578 | case 's': |
| 584 | if ((retval = print_string(va_arg(ap, char*), width, precision, flags, ps)) == EOF) { |
579 | if ((retval = print_string(va_arg(ap, char*), width, precision, flags, ps)) < 0) { |
| 585 | counter = -counter; |
580 | counter = -counter; |
| 586 | goto out; |
581 | goto out; |
| 587 | }; |
582 | }; |
| 588 | 583 | ||
| 589 | counter += retval; |
584 | counter += retval; |
| 590 | j = i + 1; |
585 | j = i + 1; |
| 591 | goto next_char; |
586 | goto next_char; |
| 592 | case 'c': |
587 | case 'c': |
| 593 | c = va_arg(ap, unsigned int); |
588 | c = va_arg(ap, unsigned int); |
| 594 | if ((retval = print_char(c, width, flags, ps)) == EOF) { |
589 | if ((retval = print_char(c, width, flags, ps)) < 0) { |
| 595 | counter = -counter; |
590 | counter = -counter; |
| 596 | goto out; |
591 | goto out; |
| 597 | }; |
592 | }; |
| 598 | 593 | ||
| 599 | counter += retval; |
594 | counter += retval; |
| 600 | j = i + 1; |
595 | j = i + 1; |
| 601 | goto next_char; |
596 | goto next_char; |
| 602 | 597 | ||
| 603 | /* |
598 | /* |
| 604 | * Integer values |
599 | * Integer values |
| 605 | */ |
600 | */ |
| 606 | case 'P': /* pointer */ |
601 | case 'P': /* pointer */ |
| 607 | flags |= __PRINTF_FLAG_BIGCHARS; |
602 | flags |= __PRINTF_FLAG_BIGCHARS; |
| 608 | case 'p': |
603 | case 'p': |
| 609 | flags |= __PRINTF_FLAG_PREFIX; |
604 | flags |= __PRINTF_FLAG_PREFIX; |
| 610 | base = 16; |
605 | base = 16; |
| 611 | qualifier = PrintfQualifierPointer; |
606 | qualifier = PrintfQualifierPointer; |
| 612 | break; |
607 | break; |
| 613 | case 'b': |
608 | case 'b': |
| 614 | base = 2; |
609 | base = 2; |
| 615 | break; |
610 | break; |
| 616 | case 'o': |
611 | case 'o': |
| 617 | base = 8; |
612 | base = 8; |
| 618 | break; |
613 | break; |
| 619 | case 'd': |
614 | case 'd': |
| 620 | case 'i': |
615 | case 'i': |
| 621 | flags |= __PRINTF_FLAG_SIGNED; |
616 | flags |= __PRINTF_FLAG_SIGNED; |
| 622 | case 'u': |
617 | case 'u': |
| 623 | break; |
618 | break; |
| 624 | case 'X': |
619 | case 'X': |
| 625 | flags |= __PRINTF_FLAG_BIGCHARS; |
620 | flags |= __PRINTF_FLAG_BIGCHARS; |
| 626 | case 'x': |
621 | case 'x': |
| 627 | base = 16; |
622 | base = 16; |
| 628 | break; |
623 | break; |
| 629 | /* percentile itself */ |
624 | /* percentile itself */ |
| 630 | case '%': |
625 | case '%': |
| 631 | j = i; |
626 | j = i; |
| 632 | goto next_char; |
627 | goto next_char; |
| 633 | /* |
628 | /* |
| 634 | * Bad formatting. |
629 | * Bad formatting. |
| 635 | */ |
630 | */ |
| 636 | default: |
631 | default: |
| 637 | /* Unknown format |
632 | /* Unknown format |
| 638 | * now, the j is index of '%' so we will |
633 | * now, the j is index of '%' so we will |
| 639 | * print whole bad format sequence |
634 | * print whole bad format sequence |
| 640 | */ |
635 | */ |
| 641 | goto next_char; |
636 | goto next_char; |
| 642 | } |
637 | } |
| 643 | 638 | ||
| 644 | 639 | ||
| 645 | /* Print integers */ |
640 | /* Print integers */ |
| 646 | /* print number */ |
641 | /* print number */ |
| 647 | switch (qualifier) { |
642 | switch (qualifier) { |
| 648 | case PrintfQualifierByte: |
643 | case PrintfQualifierByte: |
| 649 | size = sizeof(unsigned char); |
644 | size = sizeof(unsigned char); |
| 650 | number = (__u64)va_arg(ap, unsigned int); |
645 | number = (__u64)va_arg(ap, unsigned int); |
| 651 | break; |
646 | break; |
| 652 | case PrintfQualifierShort: |
647 | case PrintfQualifierShort: |
| 653 | size = sizeof(unsigned short); |
648 | size = sizeof(unsigned short); |
| 654 | number = (__u64)va_arg(ap, unsigned int); |
649 | number = (__u64)va_arg(ap, unsigned int); |
| 655 | break; |
650 | break; |
| 656 | case PrintfQualifierInt: |
651 | case PrintfQualifierInt: |
| 657 | size = sizeof(unsigned int); |
652 | size = sizeof(unsigned int); |
| 658 | number = (__u64)va_arg(ap, unsigned int); |
653 | number = (__u64)va_arg(ap, unsigned int); |
| 659 | break; |
654 | break; |
| 660 | case PrintfQualifierLong: |
655 | case PrintfQualifierLong: |
| 661 | size = sizeof(unsigned long); |
656 | size = sizeof(unsigned long); |
| 662 | number = (__u64)va_arg(ap, unsigned long); |
657 | number = (__u64)va_arg(ap, unsigned long); |
| 663 | break; |
658 | break; |
| 664 | case PrintfQualifierLongLong: |
659 | case PrintfQualifierLongLong: |
| 665 | size = sizeof(unsigned long long); |
660 | size = sizeof(unsigned long long); |
| 666 | number = (__u64)va_arg(ap, unsigned long long); |
661 | number = (__u64)va_arg(ap, unsigned long long); |
| 667 | break; |
662 | break; |
| 668 | case PrintfQualifierPointer: |
663 | case PrintfQualifierPointer: |
| 669 | size = sizeof(void *); |
664 | size = sizeof(void *); |
| 670 | number = (__u64)(unsigned long)va_arg(ap, void *); |
665 | number = (__u64)(unsigned long)va_arg(ap, void *); |
| 671 | break; |
666 | break; |
| 672 | case PrintfQualifierNative: |
667 | case PrintfQualifierNative: |
| 673 | size = sizeof(__native); |
668 | size = sizeof(__native); |
| 674 | number = (__u64)va_arg(ap, __native); |
669 | number = (__u64)va_arg(ap, __native); |
| 675 | break; |
670 | break; |
| 676 | default: /* Unknown qualifier */ |
671 | default: /* Unknown qualifier */ |
| 677 | counter = -counter; |
672 | counter = -counter; |
| 678 | goto out; |
673 | goto out; |
| 679 | } |
674 | } |
| 680 | 675 | ||
| 681 | if (flags & __PRINTF_FLAG_SIGNED) { |
676 | if (flags & __PRINTF_FLAG_SIGNED) { |
| 682 | if (number & (0x1 << (size*8 - 1))) { |
677 | if (number & (0x1 << (size*8 - 1))) { |
| 683 | flags |= __PRINTF_FLAG_NEGATIVE; |
678 | flags |= __PRINTF_FLAG_NEGATIVE; |
| 684 | 679 | ||
| 685 | if (size == sizeof(__u64)) { |
680 | if (size == sizeof(__u64)) { |
| 686 | number = -((__s64)number); |
681 | number = -((__s64)number); |
| 687 | } else { |
682 | } else { |
| 688 | number = ~number; |
683 | number = ~number; |
| 689 | number &= (~((0xFFFFFFFFFFFFFFFFll) << (size * 8))); |
684 | number &= (~((0xFFFFFFFFFFFFFFFFll) << (size * 8))); |
| 690 | number++; |
685 | number++; |
| 691 | } |
686 | } |
| 692 | } |
687 | } |
| 693 | } |
688 | } |
| 694 | 689 | ||
| 695 | if ((retval = print_number(number, width, precision, base, flags, ps)) == EOF ) { |
690 | if ((retval = print_number(number, width, precision, base, flags, ps)) < 0) { |
| 696 | counter = -counter; |
691 | counter = -counter; |
| 697 | goto out; |
692 | goto out; |
| 698 | }; |
693 | }; |
| 699 | 694 | ||
| 700 | counter += retval; |
695 | counter += retval; |
| 701 | j = i + 1; |
696 | j = i + 1; |
| 702 | } |
697 | } |
| 703 | next_char: |
698 | next_char: |
| 704 | 699 | ||
| 705 | ++i; |
700 | ++i; |
| 706 | } |
701 | } |
| 707 | 702 | ||
| 708 | if (i > j) { |
703 | if (i > j) { |
| 709 | if ((retval = printf_putnchars(&fmt[j], (__native)(i - j), ps)) == EOF) { /* error */ |
704 | if ((retval = printf_putnchars(&fmt[j], (__native)(i - j), ps)) < 0) { /* error */ |
| 710 | counter = -counter; |
705 | counter = -counter; |
| 711 | goto out; |
706 | goto out; |
| 712 | 707 | ||
| 713 | } |
708 | } |
| 714 | counter += retval; |
709 | counter += retval; |
| 715 | } |
710 | } |
| 716 | 711 | ||
| 717 | out: |
712 | out: |
| 718 | spinlock_unlock(&printflock); |
713 | spinlock_unlock(&printflock); |
| 719 | interrupts_restore(irqpri); |
714 | interrupts_restore(irqpri); |
| 720 | 715 | ||
| 721 | return counter; |
716 | return counter; |
| 722 | } |
717 | } |
| 723 | 718 | ||
| 724 | 719 | ||