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Rev | Author | Line No. | Line |
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1 | jermar | 1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
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1196 | cejka | 3 | * Copyright (C) 2006 Josef Cejka |
1 | jermar | 4 | * All rights reserved. |
5 | * |
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6 | * Redistribution and use in source and binary forms, with or without |
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7 | * modification, are permitted provided that the following conditions |
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8 | * are met: |
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9 | * |
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10 | * - Redistributions of source code must retain the above copyright |
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11 | * notice, this list of conditions and the following disclaimer. |
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12 | * - Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * - The name of the author may not be used to endorse or promote products |
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16 | * derived from this software without specific prior written permission. |
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17 | * |
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18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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28 | */ |
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29 | |||
30 | #include <putchar.h> |
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31 | #include <print.h> |
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32 | #include <synch/spinlock.h> |
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40 | jermar | 33 | #include <arch/arg.h> |
115 | jermar | 34 | #include <arch/asm.h> |
228 | cejka | 35 | |
195 | vana | 36 | #include <arch.h> |
1 | jermar | 37 | |
1204 | jermar | 38 | SPINLOCK_INITIALIZE(printflock); /**< printf spinlock */ |
1 | jermar | 39 | |
1204 | jermar | 40 | #define __PRINTF_FLAG_PREFIX 0x00000001 /* show prefixes 0x or 0 */ |
1196 | cejka | 41 | #define __PRINTF_FLAG_SIGNED 0x00000002 /* signed / unsigned number */ |
42 | #define __PRINTF_FLAG_ZEROPADDED 0x00000004 /* print leading zeroes */ |
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43 | #define __PRINTF_FLAG_LEFTALIGNED 0x00000010 /* align to left */ |
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44 | #define __PRINTF_FLAG_SHOWPLUS 0x00000020 /* always show + sign */ |
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45 | #define __PRINTF_FLAG_SPACESIGN 0x00000040 /* print space instead of plus */ |
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46 | #define __PRINTF_FLAG_BIGCHARS 0x00000080 /* show big characters */ |
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47 | #define __PRINTF_FLAG_NEGATIVE 0x00000100 /* number has - sign */ |
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61 | decky | 48 | |
1196 | cejka | 49 | #define PRINT_NUMBER_BUFFER_SIZE (64+5) /* Buffer big enought for 64 bit number |
50 | * printed in base 2, sign, prefix and |
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51 | * 0 to terminate string.. (last one is only for better testing |
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52 | * end of buffer by zero-filling subroutine) |
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53 | */ |
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54 | typedef enum { |
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55 | PrintfQualifierByte = 0, |
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56 | PrintfQualifierShort, |
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57 | PrintfQualifierInt, |
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58 | PrintfQualifierLong, |
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59 | PrintfQualifierLongLong, |
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60 | PrintfQualifierNative, |
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61 | PrintfQualifierPointer |
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62 | } qualifier_t; |
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63 | |||
64 | static char digits_small[] = "0123456789abcdef"; /* Small hexadecimal characters */ |
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1204 | jermar | 65 | static char digits_big[] = "0123456789ABCDEF"; /* Big hexadecimal characters */ |
1196 | cejka | 66 | |
67 | static inline int isdigit(int c) |
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228 | cejka | 68 | { |
1196 | cejka | 69 | return ((c >= '0' )&&( c <= '9')); |
70 | } |
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1069 | cejka | 71 | |
1196 | cejka | 72 | static __native strlen(const char *str) |
73 | { |
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74 | __native counter = 0; |
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75 | |||
76 | while (str[counter] != 0) { |
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77 | counter++; |
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78 | } |
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79 | |||
80 | return counter; |
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81 | } |
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82 | |||
1204 | jermar | 83 | /** Print one string without appending '\n' to the end |
84 | * |
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1196 | cejka | 85 | * Dont use this function directly - printflock is not locked here |
1204 | jermar | 86 | * |
87 | */ |
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1196 | cejka | 88 | static int putstr(const char *str) |
89 | { |
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90 | int count; |
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1069 | cejka | 91 | if (str == NULL) { |
1196 | cejka | 92 | str = "(NULL)"; |
93 | } |
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452 | decky | 94 | |
1196 | cejka | 95 | for (count = 0; str[count] != 0; count++) { |
96 | putchar(str[count]); |
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97 | } |
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98 | return count; |
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452 | decky | 99 | } |
100 | |||
1196 | cejka | 101 | /** Print count characters from buffer to output |
452 | decky | 102 | * |
103 | */ |
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1196 | cejka | 104 | static int putnchars(const char *buffer, __native count) |
452 | decky | 105 | { |
106 | int i; |
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1196 | cejka | 107 | if (buffer == NULL) { |
108 | buffer = "(NULL)"; |
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109 | count = 6; |
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110 | } |
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111 | |||
112 | for (i = 0; i < count; i++) { |
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113 | putchar(buffer[i]); |
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114 | } |
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115 | |||
116 | return count; |
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452 | decky | 117 | } |
118 | |||
1196 | cejka | 119 | /** Print one formatted character |
1204 | jermar | 120 | * |
1196 | cejka | 121 | * @param c character to print |
122 | * @param width |
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123 | * @param flags |
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124 | * @return number of printed characters or EOF |
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125 | */ |
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126 | static int print_char(char c, int width, __u64 flags) |
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127 | { |
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128 | int counter = 0; |
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129 | |||
130 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
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1204 | jermar | 131 | while (--width > 0) { /* one space is consumed by character itself hence the predecrement */ |
132 | /* FIXME: painfully slow */ |
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1196 | cejka | 133 | putchar(' '); |
134 | ++counter; |
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135 | } |
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136 | } |
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137 | |||
138 | putchar(c); |
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139 | ++counter; |
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452 | decky | 140 | |
1204 | jermar | 141 | while (--width > 0) { /* one space is consumed by character itself hence the predecrement */ |
1196 | cejka | 142 | putchar(' '); |
143 | ++counter; |
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144 | } |
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145 | |||
146 | return counter; |
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147 | } |
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148 | |||
149 | /** Print one string |
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150 | * @param s string |
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151 | * @param width |
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152 | * @param precision |
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153 | * @param flags |
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154 | * @return number of printed characters or EOF |
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155 | */ |
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156 | static int print_string(char *s, int width, int precision, __u64 flags) |
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157 | { |
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158 | int counter = 0; |
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159 | __native size; |
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160 | |||
161 | if (s == NULL) { |
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162 | return putstr("(NULL)"); |
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163 | } |
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164 | |||
165 | size = strlen(s); |
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166 | |||
167 | /* print leading spaces */ |
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168 | |||
169 | if (precision == 0) |
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170 | precision = size; |
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171 | |||
172 | width -= precision; |
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173 | |||
174 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
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175 | while (width-- > 0) { |
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176 | putchar(' '); |
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177 | counter++; |
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178 | } |
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179 | } |
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180 | |||
181 | while (precision > size) { |
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182 | precision--; |
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183 | putchar(' '); |
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184 | ++counter; |
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185 | } |
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186 | |||
187 | if (putnchars(s, precision) == EOF) { |
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188 | return EOF; |
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189 | } |
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190 | |||
191 | counter += precision; |
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192 | |||
193 | while (width-- > 0) { |
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194 | putchar(' '); |
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195 | ++counter; |
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196 | } |
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197 | |||
198 | return ++counter; |
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199 | } |
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200 | |||
201 | |||
452 | decky | 202 | /** Print number in given base |
203 | * |
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204 | * Print significant digits of a number in given |
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205 | * base. |
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206 | * |
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207 | * @param num Number to print. |
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1196 | cejka | 208 | * @param width |
209 | * @param precision |
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452 | decky | 210 | * @param base Base to print the number in (should |
211 | * be in range 2 .. 16). |
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1196 | cejka | 212 | * @param flags output modifiers |
1224 | cejka | 213 | * @return number of written characters or EOF. |
452 | decky | 214 | */ |
1196 | cejka | 215 | static int print_number(__u64 num, int width, int precision, int base , __u64 flags) |
452 | decky | 216 | { |
1196 | cejka | 217 | char *digits = digits_small; |
218 | char d[PRINT_NUMBER_BUFFER_SIZE]; /* this is good enough even for base == 2, prefix and sign */ |
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219 | char *ptr = &d[PRINT_NUMBER_BUFFER_SIZE - 1]; |
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220 | int size = 0; |
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221 | int written = 0; |
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222 | char sgn; |
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452 | decky | 223 | |
1196 | cejka | 224 | if (flags & __PRINTF_FLAG_BIGCHARS) |
225 | digits = digits_big; |
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452 | decky | 226 | |
1196 | cejka | 227 | *ptr-- = 0; /* Put zero at end of string */ |
228 | |||
229 | if (num == 0) { |
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230 | *ptr-- = '0'; |
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231 | size++; |
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232 | } else { |
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233 | do { |
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234 | *ptr-- = digits[num % base]; |
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235 | size++; |
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236 | } while (num /= base); |
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237 | } |
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238 | |||
239 | /* Collect sum of all prefixes/signs/... to calculate padding and leading zeroes */ |
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240 | if (flags & __PRINTF_FLAG_PREFIX) { |
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241 | switch(base) { |
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242 | case 2: /* Binary formating is not standard, but usefull */ |
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243 | size += 2; |
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244 | break; |
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245 | case 8: |
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246 | size++; |
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247 | break; |
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248 | case 16: |
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249 | size += 2; |
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250 | break; |
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251 | } |
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252 | } |
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253 | |||
254 | sgn = 0; |
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255 | if (flags & __PRINTF_FLAG_SIGNED) { |
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256 | if (flags & __PRINTF_FLAG_NEGATIVE) { |
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257 | sgn = '-'; |
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258 | size++; |
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259 | } else if (flags & __PRINTF_FLAG_SHOWPLUS) { |
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260 | sgn = '+'; |
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261 | size++; |
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262 | } else if (flags & __PRINTF_FLAG_SPACESIGN) { |
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263 | sgn = ' '; |
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264 | size++; |
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265 | } |
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266 | } |
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267 | |||
268 | if (flags & __PRINTF_FLAG_LEFTALIGNED) { |
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269 | flags &= ~__PRINTF_FLAG_ZEROPADDED; |
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270 | } |
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271 | |||
272 | /* if number is leftaligned or precision is specified then zeropadding is ignored */ |
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273 | if (flags & __PRINTF_FLAG_ZEROPADDED) { |
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274 | if ((precision == 0) && (width > size)) { |
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275 | precision = width - size; |
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276 | } |
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277 | } |
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278 | |||
279 | /* print leading spaces */ |
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1204 | jermar | 280 | if (size > precision) /* We must print the whole number, not only a part */ |
1196 | cejka | 281 | precision = size; |
282 | |||
283 | width -= precision; |
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284 | |||
285 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
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286 | while (width-- > 0) { |
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287 | putchar(' '); |
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288 | written++; |
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289 | } |
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290 | } |
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291 | |||
292 | /* print sign */ |
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293 | if (sgn) { |
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294 | putchar(sgn); |
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295 | written++; |
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296 | } |
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297 | |||
298 | /* print prefix */ |
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299 | |||
300 | if (flags & __PRINTF_FLAG_PREFIX) { |
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301 | switch(base) { |
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302 | case 2: /* Binary formating is not standard, but usefull */ |
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303 | putchar('0'); |
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304 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
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305 | putchar('B'); |
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306 | } else { |
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307 | putchar('b'); |
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308 | } |
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309 | written += 2; |
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310 | break; |
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311 | case 8: |
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312 | putchar('o'); |
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313 | written++; |
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314 | break; |
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315 | case 16: |
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316 | putchar('0'); |
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317 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
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318 | putchar('X'); |
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319 | } else { |
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320 | putchar('x'); |
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321 | } |
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322 | written += 2; |
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323 | break; |
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324 | } |
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325 | } |
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326 | |||
327 | /* print leading zeroes */ |
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328 | precision -= size; |
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329 | while (precision-- > 0) { |
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330 | putchar('0'); |
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331 | written++; |
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332 | } |
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333 | |||
334 | |||
335 | /* print number itself */ |
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336 | |||
337 | written += putstr(++ptr); |
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338 | |||
339 | /* print ending spaces */ |
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340 | |||
341 | while (width-- > 0) { |
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342 | putchar(' '); |
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343 | written++; |
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344 | } |
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345 | |||
346 | return written; |
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452 | decky | 347 | } |
348 | |||
61 | decky | 349 | /** General formatted text print |
350 | * |
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1204 | jermar | 351 | * Print string formatted according to the fmt parameter |
352 | * and variadic arguments. Each formatting directive |
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1198 | cejka | 353 | * must have the following form: |
354 | * % [ flags ] [ width ] [ .precision ] [ type ] conversion |
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61 | decky | 355 | * |
1198 | cejka | 356 | * FLAGS: |
1204 | jermar | 357 | * # Force to print prefix. |
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. |
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1198 | cejka | 359 | * - Align to left. |
360 | * + Print positive sign just as negative. |
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361 | * (space) If printed number is positive and '+' flag is not set, print space in place of sign. |
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1204 | jermar | 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. |
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1198 | cejka | 364 | * |
365 | * WIDTH: |
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366 | * Specify minimal width of printed argument. If it is bigger, width is ignored. |
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367 | * If width is specified with a '*' character instead of number, width is taken from parameter list. |
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368 | * Int parameter expected before parameter for processed conversion specification. |
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1204 | jermar | 369 | * If this value is negative its absolute value is taken and the '-' flag is set. |
405 | jermar | 370 | * |
1198 | cejka | 371 | * PRECISION: |
372 | * Value precision. For numbers it specifies minimum valid numbers. |
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373 | * Smaller numbers are printed with leading zeroes. Bigger numbers are not affected. |
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1204 | jermar | 374 | * Strings with more than precision characters are cut off. |
375 | * Just as with width, an '*' can be used used instead of a number. |
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376 | * An integer value is then expected in parameters. When both width and precision are specified using '*', |
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1198 | cejka | 377 | * first parameter is used for width and second one for precision. |
378 | * |
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379 | * TYPE: |
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380 | * hh signed or unsigned char |
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381 | * h signed or usigned short |
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382 | * signed or usigned int (default value) |
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383 | * l signed or usigned long int |
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384 | * ll signed or usigned long long int |
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385 | * z __native (non-standard extension) |
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386 | * |
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387 | * |
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388 | * CONVERSIONS: |
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389 | * |
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390 | * % Print percentage character. |
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405 | jermar | 391 | * |
1198 | cejka | 392 | * c Print single character. |
405 | jermar | 393 | * |
1198 | cejka | 394 | * s Print zero terminated string. If a NULL value is passed as value, "(NULL)" is printed instead. |
395 | * |
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396 | * P, p Print value of a pointer. Void * value is expected and it is printed in hexadecimal notation with prefix |
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397 | * ( as with %#X or %#x for 32bit or %#X / %#x for 64bit long pointers). |
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405 | jermar | 398 | * |
1198 | cejka | 399 | * b Print value as unsigned binary number. Prefix is not printed by default. (Nonstandard extension.) |
400 | * |
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401 | * o Print value as unsigned octal number. Prefix is not printed by default. |
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405 | jermar | 402 | * |
1198 | cejka | 403 | * d,i Print signed decimal number. There is no difference between d and i conversion. |
405 | jermar | 404 | * |
1198 | cejka | 405 | * u Print unsigned decimal number. |
405 | jermar | 406 | * |
1198 | cejka | 407 | * X, x Print hexadecimal number with upper- or lower-case. Prefix is not printed by default. |
408 | * |
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61 | decky | 409 | * All other characters from fmt except the formatting directives |
410 | * are printed in verbatim. |
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411 | * |
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412 | * @param fmt Formatting NULL terminated string. |
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1198 | cejka | 413 | * @return count of printed characters or negative value on fail. |
1 | jermar | 414 | */ |
1196 | cejka | 415 | int printf(const char *fmt, ...) |
1 | jermar | 416 | { |
1196 | cejka | 417 | int irqpri; |
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 */ |
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419 | int end; |
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420 | int counter; /* counter of printed characters */ |
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421 | int retval; /* used to store return values from called functions */ |
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40 | jermar | 422 | va_list ap; |
1196 | cejka | 423 | char c; |
424 | qualifier_t qualifier; /* type of argument */ |
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425 | int base; /* base in which will be parameter (numbers only) printed */ |
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426 | __u64 number; /* argument value */ |
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427 | __native size; /* byte size of integer parameter */ |
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428 | int width, precision; |
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429 | __u64 flags; |
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264 | cejka | 430 | |
1196 | cejka | 431 | counter = 0; |
432 | |||
40 | jermar | 433 | va_start(ap, fmt); |
1196 | cejka | 434 | |
413 | jermar | 435 | irqpri = interrupts_disable(); |
1 | jermar | 436 | spinlock_lock(&printflock); |
40 | jermar | 437 | |
1196 | cejka | 438 | |
439 | while ((c = fmt[i])) { |
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440 | /* control character */ |
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441 | if (c == '%' ) { |
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442 | /* print common characters if any processed */ |
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443 | if (i > j) { |
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444 | if ((retval = putnchars(&fmt[j], (__native)(i - j))) == EOF) { /* error */ |
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445 | counter = -counter; |
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446 | goto out; |
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447 | } |
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448 | counter += retval; |
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449 | } |
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450 | |||
451 | j = i; |
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452 | /* parse modifiers */ |
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453 | flags = 0; |
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454 | end = 0; |
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455 | |||
456 | do { |
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457 | ++i; |
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458 | switch (c = fmt[i]) { |
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459 | case '#': flags |= __PRINTF_FLAG_PREFIX; break; |
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460 | case '-': flags |= __PRINTF_FLAG_LEFTALIGNED; break; |
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461 | case '+': flags |= __PRINTF_FLAG_SHOWPLUS; break; |
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462 | case ' ': flags |= __PRINTF_FLAG_SPACESIGN; break; |
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463 | case '0': flags |= __PRINTF_FLAG_ZEROPADDED; break; |
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464 | default: end = 1; |
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465 | }; |
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466 | |||
467 | } while (end == 0); |
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468 | |||
469 | /* width & '*' operator */ |
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470 | width = 0; |
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471 | if (isdigit(fmt[i])) { |
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472 | while (isdigit(fmt[i])) { |
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473 | width *= 10; |
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474 | width += fmt[i++] - '0'; |
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475 | } |
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476 | } else if (fmt[i] == '*') { |
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477 | /* get width value from argument list*/ |
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478 | i++; |
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479 | width = (int)va_arg(ap, int); |
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480 | if (width < 0) { |
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481 | /* negative width means to set '-' flag */ |
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482 | width *= -1; |
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483 | flags |= __PRINTF_FLAG_LEFTALIGNED; |
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484 | } |
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485 | } |
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486 | |||
487 | /* precision and '*' operator */ |
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488 | precision = 0; |
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489 | if (fmt[i] == '.') { |
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490 | ++i; |
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491 | if (isdigit(fmt[i])) { |
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492 | while (isdigit(fmt[i])) { |
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493 | precision *= 10; |
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494 | precision += fmt[i++] - '0'; |
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495 | } |
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496 | } else if (fmt[i] == '*') { |
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497 | /* get precision value from argument list*/ |
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498 | i++; |
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499 | precision = (int)va_arg(ap, int); |
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500 | if (precision < 0) { |
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501 | /* negative precision means to ignore it */ |
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502 | precision = 0; |
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503 | } |
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504 | } |
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505 | } |
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1 | jermar | 506 | |
1196 | cejka | 507 | switch (fmt[i++]) { |
508 | /** TODO: unimplemented qualifiers: |
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509 | * t ptrdiff_t - ISO C 99 |
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510 | */ |
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511 | case 'h': /* char or short */ |
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512 | qualifier = PrintfQualifierShort; |
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513 | if (fmt[i] == 'h') { |
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514 | i++; |
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515 | qualifier = PrintfQualifierByte; |
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516 | } |
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517 | break; |
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518 | case 'l': /* long or long long*/ |
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519 | qualifier = PrintfQualifierLong; |
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520 | if (fmt[i] == 'l') { |
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521 | i++; |
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522 | qualifier = PrintfQualifierLongLong; |
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523 | } |
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524 | break; |
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525 | case 'z': /* __native */ |
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526 | qualifier = PrintfQualifierNative; |
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527 | break; |
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528 | default: |
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529 | qualifier = PrintfQualifierInt; /* default type */ |
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530 | --i; |
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531 | } |
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532 | |||
533 | base = 10; |
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1 | jermar | 534 | |
1196 | cejka | 535 | switch (c = fmt[i]) { |
1 | jermar | 536 | |
1196 | cejka | 537 | /* |
538 | * String and character conversions. |
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539 | */ |
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540 | case 's': |
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541 | if ((retval = print_string(va_arg(ap, char*), width, precision, flags)) == EOF) { |
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542 | counter = -counter; |
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543 | goto out; |
||
544 | }; |
||
545 | |||
546 | counter += retval; |
||
547 | j = i + 1; |
||
548 | goto next_char; |
||
549 | case 'c': |
||
550 | c = va_arg(ap, unsigned int); |
||
551 | if ((retval = print_char(c, width, flags )) == EOF) { |
||
552 | counter = -counter; |
||
553 | goto out; |
||
554 | }; |
||
555 | |||
556 | counter += retval; |
||
557 | j = i + 1; |
||
558 | goto next_char; |
||
1 | jermar | 559 | |
1196 | cejka | 560 | /* |
561 | * Integer values |
||
562 | */ |
||
563 | case 'P': /* pointer */ |
||
564 | flags |= __PRINTF_FLAG_BIGCHARS; |
||
565 | case 'p': |
||
566 | flags |= __PRINTF_FLAG_PREFIX; |
||
567 | base = 16; |
||
568 | qualifier = PrintfQualifierPointer; |
||
569 | break; |
||
570 | case 'b': |
||
571 | base = 2; |
||
572 | break; |
||
573 | case 'o': |
||
574 | base = 8; |
||
575 | break; |
||
576 | case 'd': |
||
577 | case 'i': |
||
578 | flags |= __PRINTF_FLAG_SIGNED; |
||
579 | case 'u': |
||
580 | break; |
||
581 | case 'X': |
||
582 | flags |= __PRINTF_FLAG_BIGCHARS; |
||
583 | case 'x': |
||
584 | base = 16; |
||
585 | break; |
||
586 | /* percentile itself */ |
||
587 | case '%': |
||
588 | j = i; |
||
589 | goto next_char; |
||
590 | /* |
||
591 | * Bad formatting. |
||
592 | */ |
||
593 | default: |
||
594 | /* Unknown format |
||
595 | * now, the j is index of '%' so we will |
||
596 | * print whole bad format sequence |
||
597 | */ |
||
598 | goto next_char; |
||
599 | } |
||
600 | |||
601 | |||
602 | /* Print integers */ |
||
603 | /* print number */ |
||
604 | switch (qualifier) { |
||
605 | case PrintfQualifierByte: |
||
606 | size = sizeof(unsigned char); |
||
607 | number = (__u64)va_arg(ap, unsigned int); |
||
608 | break; |
||
609 | case PrintfQualifierShort: |
||
610 | size = sizeof(unsigned short); |
||
611 | number = (__u64)va_arg(ap, unsigned int); |
||
612 | break; |
||
613 | case PrintfQualifierInt: |
||
614 | size = sizeof(unsigned int); |
||
615 | number = (__u64)va_arg(ap, unsigned int); |
||
616 | break; |
||
617 | case PrintfQualifierLong: |
||
618 | size = sizeof(unsigned long); |
||
619 | number = (__u64)va_arg(ap, unsigned long); |
||
620 | break; |
||
621 | case PrintfQualifierLongLong: |
||
622 | size = sizeof(unsigned long long); |
||
623 | number = (__u64)va_arg(ap, unsigned long long); |
||
624 | break; |
||
625 | case PrintfQualifierPointer: |
||
626 | size = sizeof(void *); |
||
627 | number = (__u64)(unsigned long)va_arg(ap, void *); |
||
628 | break; |
||
629 | case PrintfQualifierNative: |
||
630 | size = sizeof(__native); |
||
631 | number = (__u64)va_arg(ap, __native); |
||
632 | break; |
||
633 | default: /* Unknown qualifier */ |
||
634 | counter = -counter; |
||
635 | goto out; |
||
636 | |||
637 | } |
||
638 | |||
639 | if (flags & __PRINTF_FLAG_SIGNED) { |
||
640 | if (number & (0x1 << (size*8 - 1))) { |
||
641 | flags |= __PRINTF_FLAG_NEGATIVE; |
||
642 | |||
643 | if (size == sizeof(__u64)) { |
||
644 | number = -((__s64)number); |
||
645 | } else { |
||
646 | number = ~number; |
||
647 | number &= (~((0xFFFFFFFFFFFFFFFFll) << (size * 8))); |
||
648 | number++; |
||
649 | } |
||
650 | } |
||
651 | } |
||
1 | jermar | 652 | |
1196 | cejka | 653 | if ((retval = print_number(number, width, precision, base, flags)) == EOF ) { |
654 | counter = -counter; |
||
655 | goto out; |
||
656 | }; |
||
77 | jermar | 657 | |
1196 | cejka | 658 | counter += retval; |
659 | j = i + 1; |
||
660 | } |
||
661 | next_char: |
||
662 | |||
663 | ++i; |
||
664 | } |
||
674 | cejka | 665 | |
1196 | cejka | 666 | if (i > j) { |
667 | if ((retval = putnchars(&fmt[j], (__native)(i - j))) == EOF) { /* error */ |
||
668 | counter = -counter; |
||
669 | goto out; |
||
1 | jermar | 670 | } |
1196 | cejka | 671 | counter += retval; |
1 | jermar | 672 | } |
673 | out: |
||
674 | spinlock_unlock(&printflock); |
||
413 | jermar | 675 | interrupts_restore(irqpri); |
40 | jermar | 676 | |
677 | va_end(ap); |
||
1196 | cejka | 678 | return counter; |
1 | jermar | 679 | } |