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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 | |
623 | jermar | 38 | SPINLOCK_INITIALIZE(printflock); /**< printf spinlock */ |
1 | jermar | 39 | |
1196 | cejka | 40 | #define __PRINTF_FLAG_PREFIX 0x00000001 /* show prefixes 0x or 0*/ |
41 | #define __PRINTF_FLAG_SIGNED 0x00000002 /* signed / unsigned number */ |
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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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65 | static char digits_big[] = "0123456789ABCDEF"; /* Big hexadecimal characters */ |
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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 | |||
83 | /** Print one string without adding \n at end |
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84 | * Dont use this function directly - printflock is not locked here |
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85 | * */ |
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86 | static int putstr(const char *str) |
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87 | { |
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88 | int count; |
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1069 | cejka | 89 | if (str == NULL) { |
1196 | cejka | 90 | str = "(NULL)"; |
91 | } |
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452 | decky | 92 | |
1196 | cejka | 93 | for (count = 0; str[count] != 0; count++) { |
94 | putchar(str[count]); |
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95 | } |
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96 | return count; |
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452 | decky | 97 | } |
98 | |||
1196 | cejka | 99 | /** Print count characters from buffer to output |
452 | decky | 100 | * |
101 | */ |
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1196 | cejka | 102 | static int putnchars(const char *buffer, __native count) |
452 | decky | 103 | { |
104 | int i; |
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1196 | cejka | 105 | if (buffer == NULL) { |
106 | buffer = "(NULL)"; |
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107 | count = 6; |
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108 | } |
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109 | |||
110 | for (i = 0; i < count; i++) { |
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111 | putchar(buffer[i]); |
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112 | } |
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113 | |||
114 | return count; |
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452 | decky | 115 | } |
116 | |||
1196 | cejka | 117 | /** Print one formatted character |
118 | * @param c character to print |
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119 | * @param width |
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120 | * @param flags |
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121 | * @return number of printed characters or EOF |
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122 | */ |
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123 | static int print_char(char c, int width, __u64 flags) |
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124 | { |
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125 | int counter = 0; |
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126 | |||
127 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
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128 | while (--width > 0) { /* one space is consumed by character itself hence predecrement */ |
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129 | /* FIXME: painful slow */ |
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130 | putchar(' '); |
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131 | ++counter; |
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132 | } |
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133 | } |
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134 | |||
135 | putchar(c); |
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136 | ++counter; |
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452 | decky | 137 | |
1196 | cejka | 138 | while (--width > 0) { /* one space is consumed by character itself hence predecrement */ |
139 | putchar(' '); |
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140 | ++counter; |
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141 | } |
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142 | |||
143 | return counter; |
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144 | } |
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145 | |||
146 | /** Print one string |
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147 | * @param s string |
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148 | * @param width |
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149 | * @param precision |
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150 | * @param flags |
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151 | * @return number of printed characters or EOF |
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152 | */ |
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153 | |||
154 | static int print_string(char *s, int width, int precision, __u64 flags) |
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155 | { |
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156 | int counter = 0; |
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157 | __native size; |
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158 | |||
159 | if (s == NULL) { |
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160 | return putstr("(NULL)"); |
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161 | } |
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162 | |||
163 | size = strlen(s); |
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164 | |||
165 | /* print leading spaces */ |
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166 | |||
167 | if (precision == 0) |
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168 | precision = size; |
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169 | |||
170 | width -= precision; |
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171 | |||
172 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
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173 | while (width-- > 0) { |
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174 | putchar(' '); |
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175 | counter++; |
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176 | } |
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177 | } |
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178 | |||
179 | while (precision > size) { |
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180 | precision--; |
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181 | putchar(' '); |
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182 | ++counter; |
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183 | } |
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184 | |||
185 | if (putnchars(s, precision) == EOF) { |
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186 | return EOF; |
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187 | } |
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188 | |||
189 | counter += precision; |
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190 | |||
191 | while (width-- > 0) { |
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192 | putchar(' '); |
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193 | ++counter; |
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194 | } |
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195 | |||
196 | return ++counter; |
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197 | } |
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198 | |||
199 | |||
452 | decky | 200 | /** Print number in given base |
201 | * |
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202 | * Print significant digits of a number in given |
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203 | * base. |
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204 | * |
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205 | * @param num Number to print. |
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1196 | cejka | 206 | * @param width |
207 | * @param precision |
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452 | decky | 208 | * @param base Base to print the number in (should |
209 | * be in range 2 .. 16). |
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1196 | cejka | 210 | * @param flags output modifiers |
1198 | cejka | 211 | * @return number of written characters or negative value on fail. |
452 | decky | 212 | */ |
1196 | cejka | 213 | static int print_number(__u64 num, int width, int precision, int base , __u64 flags) |
452 | decky | 214 | { |
1196 | cejka | 215 | char *digits = digits_small; |
216 | char d[PRINT_NUMBER_BUFFER_SIZE]; /* this is good enough even for base == 2, prefix and sign */ |
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217 | char *ptr = &d[PRINT_NUMBER_BUFFER_SIZE - 1]; |
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218 | int size = 0; |
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219 | int written = 0; |
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220 | char sgn; |
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452 | decky | 221 | |
1196 | cejka | 222 | if (flags & __PRINTF_FLAG_BIGCHARS) |
223 | digits = digits_big; |
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452 | decky | 224 | |
1196 | cejka | 225 | *ptr-- = 0; /* Put zero at end of string */ |
226 | |||
227 | if (num == 0) { |
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228 | *ptr-- = '0'; |
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229 | size++; |
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230 | } else { |
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231 | do { |
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232 | *ptr-- = digits[num % base]; |
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233 | size++; |
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234 | } while (num /= base); |
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235 | } |
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236 | |||
237 | /* Collect sum of all prefixes/signs/... to calculate padding and leading zeroes */ |
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238 | if (flags & __PRINTF_FLAG_PREFIX) { |
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239 | switch(base) { |
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240 | case 2: /* Binary formating is not standard, but usefull */ |
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241 | size += 2; |
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242 | break; |
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243 | case 8: |
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244 | size++; |
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245 | break; |
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246 | case 16: |
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247 | size += 2; |
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248 | break; |
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249 | } |
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250 | } |
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251 | |||
252 | sgn = 0; |
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253 | if (flags & __PRINTF_FLAG_SIGNED) { |
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254 | if (flags & __PRINTF_FLAG_NEGATIVE) { |
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255 | sgn = '-'; |
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256 | size++; |
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257 | } else if (flags & __PRINTF_FLAG_SHOWPLUS) { |
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258 | sgn = '+'; |
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259 | size++; |
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260 | } else if (flags & __PRINTF_FLAG_SPACESIGN) { |
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261 | sgn = ' '; |
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262 | size++; |
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263 | } |
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264 | } |
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265 | |||
266 | if (flags & __PRINTF_FLAG_LEFTALIGNED) { |
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267 | flags &= ~__PRINTF_FLAG_ZEROPADDED; |
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268 | } |
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269 | |||
270 | /* if number is leftaligned or precision is specified then zeropadding is ignored */ |
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271 | if (flags & __PRINTF_FLAG_ZEROPADDED) { |
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272 | if ((precision == 0) && (width > size)) { |
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273 | precision = width - size; |
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274 | } |
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275 | } |
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276 | |||
277 | /* print leading spaces */ |
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278 | if (size > precision) /* We must print whole number not only a part */ |
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279 | precision = size; |
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280 | |||
281 | width -= precision; |
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282 | |||
283 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
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284 | while (width-- > 0) { |
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285 | putchar(' '); |
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286 | written++; |
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287 | } |
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288 | } |
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289 | |||
290 | /* print sign */ |
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291 | if (sgn) { |
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292 | putchar(sgn); |
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293 | written++; |
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294 | } |
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295 | |||
296 | /* print prefix */ |
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297 | |||
298 | if (flags & __PRINTF_FLAG_PREFIX) { |
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299 | switch(base) { |
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300 | case 2: /* Binary formating is not standard, but usefull */ |
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301 | putchar('0'); |
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302 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
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303 | putchar('B'); |
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304 | } else { |
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305 | putchar('b'); |
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306 | } |
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307 | written += 2; |
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308 | break; |
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309 | case 8: |
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310 | putchar('o'); |
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311 | written++; |
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312 | break; |
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313 | case 16: |
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314 | putchar('0'); |
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315 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
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316 | putchar('X'); |
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317 | } else { |
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318 | putchar('x'); |
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319 | } |
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320 | written += 2; |
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321 | break; |
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322 | } |
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323 | } |
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324 | |||
325 | /* print leading zeroes */ |
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326 | precision -= size; |
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327 | while (precision-- > 0) { |
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328 | putchar('0'); |
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329 | written++; |
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330 | } |
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331 | |||
332 | |||
333 | /* print number itself */ |
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334 | |||
335 | written += putstr(++ptr); |
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336 | |||
337 | /* print ending spaces */ |
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338 | |||
339 | while (width-- > 0) { |
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340 | putchar(' '); |
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341 | written++; |
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342 | } |
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343 | |||
344 | return written; |
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452 | decky | 345 | } |
346 | |||
61 | decky | 347 | /** General formatted text print |
348 | * |
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1198 | cejka | 349 | * Print string formatted according the fmt parameter |
61 | decky | 350 | * and variant arguments. Each formatting directive |
1198 | cejka | 351 | * must have the following form: |
352 | * % [ flags ] [ width ] [ .precision ] [ type ] conversion |
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61 | decky | 353 | * |
1198 | cejka | 354 | * FLAGS: |
355 | * # Force to print prefix. For conversion %o is prefix 0, for %x and %X are prefixes 0x and 0X and for conversion %b is prefix 0b. |
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356 | * - Align to left. |
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357 | * + Print positive sign just as negative. |
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358 | * (space) If printed number is positive and '+' flag is not set, print space in place of sign. |
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359 | * 0 Print 0 as padding instead of spaces. Zeroes are placed between sign and the rest of number. This flag is ignored if '-' flag is specified. |
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360 | * |
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361 | * WIDTH: |
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362 | * Specify minimal width of printed argument. If it is bigger, width is ignored. |
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363 | * If width is specified with a '*' character instead of number, width is taken from parameter list. |
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364 | * Int parameter expected before parameter for processed conversion specification. |
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365 | * If this value is negative it is taken its absolute value and the '-' flag is set. |
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405 | jermar | 366 | * |
1198 | cejka | 367 | * PRECISION: |
368 | * Value precision. For numbers it specifies minimum valid numbers. |
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369 | * Smaller numbers are printed with leading zeroes. Bigger numbers are not affected. |
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370 | * Strings with more than precision characters are cutted of. |
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371 | * Just as width could be '*' used instead a number. |
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372 | * A int value is then expected in parameters. When both width and precision are specified using '*', |
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373 | * first parameter is used for width and second one for precision. |
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374 | * |
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375 | * TYPE: |
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376 | * hh signed or unsigned char |
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377 | * h signed or usigned short |
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378 | * signed or usigned int (default value) |
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379 | * l signed or usigned long int |
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380 | * ll signed or usigned long long int |
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381 | * z __native (non-standard extension) |
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382 | * |
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383 | * |
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384 | * CONVERSIONS: |
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385 | * |
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386 | * % Print percentage character. |
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405 | jermar | 387 | * |
1198 | cejka | 388 | * c Print single character. |
405 | jermar | 389 | * |
1198 | cejka | 390 | * s Print zero terminated string. If a NULL value is passed as value, "(NULL)" is printed instead. |
391 | * |
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392 | * P, p Print value of a pointer. Void * value is expected and it is printed in hexadecimal notation with prefix |
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393 | * ( as with %#X or %#x for 32bit or %#X / %#x for 64bit long pointers). |
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405 | jermar | 394 | * |
1198 | cejka | 395 | * b Print value as unsigned binary number. Prefix is not printed by default. (Nonstandard extension.) |
396 | * |
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397 | * o Print value as unsigned octal number. Prefix is not printed by default. |
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405 | jermar | 398 | * |
1198 | cejka | 399 | * d,i Print signed decimal number. There is no difference between d and i conversion. |
405 | jermar | 400 | * |
1198 | cejka | 401 | * u Print unsigned decimal number. |
405 | jermar | 402 | * |
1198 | cejka | 403 | * X, x Print hexadecimal number with upper- or lower-case. Prefix is not printed by default. |
404 | * |
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61 | decky | 405 | * All other characters from fmt except the formatting directives |
406 | * are printed in verbatim. |
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407 | * |
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408 | * @param fmt Formatting NULL terminated string. |
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1198 | cejka | 409 | * @return count of printed characters or negative value on fail. |
1 | jermar | 410 | */ |
1196 | cejka | 411 | int printf(const char *fmt, ...) |
1 | jermar | 412 | { |
1196 | cejka | 413 | int irqpri; |
414 | int i = 0, j = 0; /* i is index of currently processed char from fmt, j is index to the first not printed nonformating character */ |
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415 | int end; |
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416 | int counter; /* counter of printed characters */ |
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417 | int retval; /* used to store return values from called functions */ |
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40 | jermar | 418 | va_list ap; |
1196 | cejka | 419 | char c; |
420 | qualifier_t qualifier; /* type of argument */ |
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421 | int base; /* base in which will be parameter (numbers only) printed */ |
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422 | __u64 number; /* argument value */ |
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423 | __native size; /* byte size of integer parameter */ |
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424 | int width, precision; |
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425 | __u64 flags; |
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264 | cejka | 426 | |
1196 | cejka | 427 | counter = 0; |
428 | |||
40 | jermar | 429 | va_start(ap, fmt); |
1196 | cejka | 430 | |
413 | jermar | 431 | irqpri = interrupts_disable(); |
1 | jermar | 432 | spinlock_lock(&printflock); |
40 | jermar | 433 | |
1196 | cejka | 434 | |
435 | while ((c = fmt[i])) { |
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436 | /* control character */ |
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437 | if (c == '%' ) { |
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438 | /* print common characters if any processed */ |
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439 | if (i > j) { |
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440 | if ((retval = putnchars(&fmt[j], (__native)(i - j))) == EOF) { /* error */ |
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441 | counter = -counter; |
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442 | goto out; |
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443 | } |
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444 | counter += retval; |
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445 | } |
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446 | |||
447 | j = i; |
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448 | /* parse modifiers */ |
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449 | flags = 0; |
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450 | end = 0; |
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451 | |||
452 | do { |
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453 | ++i; |
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454 | switch (c = fmt[i]) { |
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455 | case '#': flags |= __PRINTF_FLAG_PREFIX; break; |
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456 | case '-': flags |= __PRINTF_FLAG_LEFTALIGNED; break; |
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457 | case '+': flags |= __PRINTF_FLAG_SHOWPLUS; break; |
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458 | case ' ': flags |= __PRINTF_FLAG_SPACESIGN; break; |
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459 | case '0': flags |= __PRINTF_FLAG_ZEROPADDED; break; |
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460 | default: end = 1; |
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461 | }; |
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462 | |||
463 | } while (end == 0); |
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464 | |||
465 | /* width & '*' operator */ |
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466 | width = 0; |
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467 | if (isdigit(fmt[i])) { |
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468 | while (isdigit(fmt[i])) { |
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469 | width *= 10; |
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470 | width += fmt[i++] - '0'; |
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471 | } |
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472 | } else if (fmt[i] == '*') { |
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473 | /* get width value from argument list*/ |
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474 | i++; |
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475 | width = (int)va_arg(ap, int); |
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476 | if (width < 0) { |
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477 | /* negative width means to set '-' flag */ |
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478 | width *= -1; |
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479 | flags |= __PRINTF_FLAG_LEFTALIGNED; |
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480 | } |
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481 | } |
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482 | |||
483 | /* precision and '*' operator */ |
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484 | precision = 0; |
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485 | if (fmt[i] == '.') { |
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486 | ++i; |
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487 | if (isdigit(fmt[i])) { |
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488 | while (isdigit(fmt[i])) { |
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489 | precision *= 10; |
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490 | precision += fmt[i++] - '0'; |
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491 | } |
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492 | } else if (fmt[i] == '*') { |
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493 | /* get precision value from argument list*/ |
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494 | i++; |
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495 | precision = (int)va_arg(ap, int); |
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496 | if (precision < 0) { |
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497 | /* negative precision means to ignore it */ |
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498 | precision = 0; |
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499 | } |
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500 | } |
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501 | } |
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1 | jermar | 502 | |
1196 | cejka | 503 | switch (fmt[i++]) { |
504 | /** TODO: unimplemented qualifiers: |
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505 | * t ptrdiff_t - ISO C 99 |
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506 | */ |
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507 | case 'h': /* char or short */ |
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508 | qualifier = PrintfQualifierShort; |
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509 | if (fmt[i] == 'h') { |
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510 | i++; |
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511 | qualifier = PrintfQualifierByte; |
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512 | } |
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513 | break; |
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514 | case 'l': /* long or long long*/ |
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515 | qualifier = PrintfQualifierLong; |
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516 | if (fmt[i] == 'l') { |
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517 | i++; |
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518 | qualifier = PrintfQualifierLongLong; |
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519 | } |
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520 | break; |
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521 | case 'z': /* __native */ |
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522 | qualifier = PrintfQualifierNative; |
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523 | break; |
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524 | default: |
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525 | qualifier = PrintfQualifierInt; /* default type */ |
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526 | --i; |
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527 | } |
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528 | |||
529 | base = 10; |
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1 | jermar | 530 | |
1196 | cejka | 531 | switch (c = fmt[i]) { |
1 | jermar | 532 | |
1196 | cejka | 533 | /* |
534 | * String and character conversions. |
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535 | */ |
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536 | case 's': |
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537 | if ((retval = print_string(va_arg(ap, char*), width, precision, flags)) == EOF) { |
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538 | counter = -counter; |
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539 | goto out; |
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540 | }; |
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541 | |||
542 | counter += retval; |
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543 | j = i + 1; |
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544 | goto next_char; |
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545 | case 'c': |
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546 | c = va_arg(ap, unsigned int); |
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547 | if ((retval = print_char(c, width, flags )) == EOF) { |
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548 | counter = -counter; |
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549 | goto out; |
||
550 | }; |
||
551 | |||
552 | counter += retval; |
||
553 | j = i + 1; |
||
554 | goto next_char; |
||
1 | jermar | 555 | |
1196 | cejka | 556 | /* |
557 | * Integer values |
||
558 | */ |
||
559 | case 'P': /* pointer */ |
||
560 | flags |= __PRINTF_FLAG_BIGCHARS; |
||
561 | case 'p': |
||
562 | flags |= __PRINTF_FLAG_PREFIX; |
||
563 | base = 16; |
||
564 | qualifier = PrintfQualifierPointer; |
||
565 | break; |
||
566 | case 'b': |
||
567 | base = 2; |
||
568 | break; |
||
569 | case 'o': |
||
570 | base = 8; |
||
571 | break; |
||
572 | case 'd': |
||
573 | case 'i': |
||
574 | flags |= __PRINTF_FLAG_SIGNED; |
||
575 | case 'u': |
||
576 | break; |
||
577 | case 'X': |
||
578 | flags |= __PRINTF_FLAG_BIGCHARS; |
||
579 | case 'x': |
||
580 | base = 16; |
||
581 | break; |
||
582 | /* percentile itself */ |
||
583 | case '%': |
||
584 | j = i; |
||
585 | goto next_char; |
||
586 | /* |
||
587 | * Bad formatting. |
||
588 | */ |
||
589 | default: |
||
590 | /* Unknown format |
||
591 | * now, the j is index of '%' so we will |
||
592 | * print whole bad format sequence |
||
593 | */ |
||
594 | goto next_char; |
||
595 | } |
||
596 | |||
597 | |||
598 | /* Print integers */ |
||
599 | /* print number */ |
||
600 | switch (qualifier) { |
||
601 | case PrintfQualifierByte: |
||
602 | size = sizeof(unsigned char); |
||
603 | number = (__u64)va_arg(ap, unsigned int); |
||
604 | break; |
||
605 | case PrintfQualifierShort: |
||
606 | size = sizeof(unsigned short); |
||
607 | number = (__u64)va_arg(ap, unsigned int); |
||
608 | break; |
||
609 | case PrintfQualifierInt: |
||
610 | size = sizeof(unsigned int); |
||
611 | number = (__u64)va_arg(ap, unsigned int); |
||
612 | break; |
||
613 | case PrintfQualifierLong: |
||
614 | size = sizeof(unsigned long); |
||
615 | number = (__u64)va_arg(ap, unsigned long); |
||
616 | break; |
||
617 | case PrintfQualifierLongLong: |
||
618 | size = sizeof(unsigned long long); |
||
619 | number = (__u64)va_arg(ap, unsigned long long); |
||
620 | break; |
||
621 | case PrintfQualifierPointer: |
||
622 | size = sizeof(void *); |
||
623 | number = (__u64)(unsigned long)va_arg(ap, void *); |
||
624 | break; |
||
625 | case PrintfQualifierNative: |
||
626 | size = sizeof(__native); |
||
627 | number = (__u64)va_arg(ap, __native); |
||
628 | break; |
||
629 | default: /* Unknown qualifier */ |
||
630 | counter = -counter; |
||
631 | goto out; |
||
632 | |||
633 | } |
||
634 | |||
635 | if (flags & __PRINTF_FLAG_SIGNED) { |
||
636 | if (number & (0x1 << (size*8 - 1))) { |
||
637 | flags |= __PRINTF_FLAG_NEGATIVE; |
||
638 | |||
639 | if (size == sizeof(__u64)) { |
||
640 | number = -((__s64)number); |
||
641 | } else { |
||
642 | number = ~number; |
||
643 | number &= (~((0xFFFFFFFFFFFFFFFFll) << (size * 8))); |
||
644 | number++; |
||
645 | } |
||
646 | } |
||
647 | } |
||
1 | jermar | 648 | |
1196 | cejka | 649 | if ((retval = print_number(number, width, precision, base, flags)) == EOF ) { |
650 | counter = -counter; |
||
651 | goto out; |
||
652 | }; |
||
77 | jermar | 653 | |
1196 | cejka | 654 | counter += retval; |
655 | j = i + 1; |
||
656 | } |
||
657 | next_char: |
||
658 | |||
659 | ++i; |
||
660 | } |
||
674 | cejka | 661 | |
1196 | cejka | 662 | if (i > j) { |
663 | if ((retval = putnchars(&fmt[j], (__native)(i - j))) == EOF) { /* error */ |
||
664 | counter = -counter; |
||
665 | goto out; |
||
1 | jermar | 666 | } |
1196 | cejka | 667 | counter += retval; |
1 | jermar | 668 | } |
669 | out: |
||
670 | spinlock_unlock(&printflock); |
||
413 | jermar | 671 | interrupts_restore(irqpri); |
40 | jermar | 672 | |
673 | va_end(ap); |
||
1196 | cejka | 674 | return counter; |
1 | jermar | 675 | } |
1196 | cejka | 676 |