1 | #! /usr/bin/perl
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2 | #
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3 | # TOPPERS Software
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4 | # Toyohashi Open Platform for Embedded Real-Time Systems
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5 | #
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6 | # Copyright (C) 2000-2003 by Embedded and Real-Time Systems Laboratory
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7 | # Toyohashi Univ. of Technology, JAPAN
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8 | # Copyright (C) 2004-2011 by Embedded and Real-Time Systems Laboratory
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9 | # Graduate School of Information Science, Nagoya Univ., JAPAN
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10 | #
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11 | # ä¸è¨èä½æ¨©è
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12 | ã¯ï¼ä»¥ä¸ã®(1)ï½(4)ã®æ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
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13 | # ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹
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14 | # å¤ã»åé
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15 | å¸ï¼ä»¥ä¸ï¼å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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16 | # (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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17 | # 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼
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18 | # ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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19 | # (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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20 | # ç¨ã§ããå½¢ã§åé
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21 | å¸ããå ´åã«ã¯ï¼åé
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22 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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23 | # è
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24 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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25 | # ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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26 | # (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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27 | # ç¨ã§ããªãå½¢ã§åé
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28 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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29 | # ã¨ï¼
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30 | # (a) åé
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31 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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32 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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33 | # ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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34 | # (b) åé
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35 | å¸ã®å½¢æ
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36 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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37 | # å ±åãããã¨ï¼
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38 | # (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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39 | # 害ãããï¼ä¸è¨èä½æ¨©è
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40 | ããã³TOPPERSããã¸ã§ã¯ããå
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41 | 責ãããã¨ï¼
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42 | # ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãç
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43 | # ç±ã«åºã¥ãè«æ±ãããï¼ä¸è¨èä½æ¨©è
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44 | ããã³TOPPERSããã¸ã§ã¯ãã
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45 | # å
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46 | 責ãããã¨ï¼
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47 | #
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48 | # æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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49 | ã
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50 | # ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ç¹å®ã®ä½¿ç¨ç®ç
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51 | # ã«å¯¾ããé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§
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52 | # ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ã
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53 | # ã®è²¬ä»»ãè² ããªãï¼
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54 | #
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55 | # @(#) $Id: genoffset 2253 2011-09-11 01:23:40Z ertl-hiro $
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56 | #
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57 |
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58 | #
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59 | # åæå
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60 | #
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61 | $infile = $ARGV[0];
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62 | $sil_endian = "";
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63 |
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64 | #
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65 | # 解éã§ãããã£ã¬ã¯ãã£ãã®ãã¼ãã«
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66 | #
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67 | %directives = (
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68 | "long", "",
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69 | "dword", "",
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70 | "word", "",
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71 | "hword", "",
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72 | "int", "",
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73 | "short", "",
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74 | "half", "",
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75 | "byte", "",
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76 | "value", "",
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77 | "uaword", "",
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78 | "uashort", "",
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79 | "data32", 4,
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80 | "data16", 2,
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81 | "data8", 1,
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82 | "zero", -1,
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83 | "space", -1,
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84 | "globl", 0,
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85 | "global", 0,
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86 | "align", 0,
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87 | "p2align", 0,
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88 | "even", 0,
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89 | "data", 0,
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90 | "stabs", 0,
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91 | "type", 0,
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92 | "size", 0,
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93 | "section", 0,
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94 | "sdata", 0,
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95 | "code", 0,
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96 | );
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97 |
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98 | #
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99 | # ãªãã»ããå¤ã®åºå
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100 | #
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101 | sub parse_offset {
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102 | my($label, $val) = @_;
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103 |
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104 | printf "#define %s\t%d\n",$label,$val;
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105 | }
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106 |
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107 | #
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108 | # ãã£ã¬ã¯ãã£ãã®èªã¿åã
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109 | #
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110 | sub ref_bit {
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111 | my($size) = @_;
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112 | my($dir, $directive);
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113 |
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114 | while ($line = <INFILE>) {
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115 | chomp $line;
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116 | next if ($line =~ /^[ \t]*[#;].*$/);
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117 |
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118 | if ($line =~ /[ \t]*\.([a-zA-Z0-9]+)[ \t]*([^ \t]*)[ \t]*/
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119 | && defined($dir = $directives{$1})) {
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120 | $directive = $1;
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121 | if ($dir eq "") {
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122 | # ç»é²ãã¹ããã£ã¬ã¯ãã£ã
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123 | $directives{$directive} = $size;
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124 | }
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125 | last;
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126 | }
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127 | else {
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128 | # 解æã§ããªãè¡
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129 | print STDERR "genoffset: cannot parse: $line\n";
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130 | $error = 1;
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131 | }
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132 | }
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133 | }
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134 |
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135 | #
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136 | # ããããµã¼ã
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137 | #
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138 | sub search_bit {
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139 | my($val) = @_;
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140 | my($val_bit);
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141 |
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142 | return(-1) if ($val == 0);
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143 |
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144 | $val_bit = 0;
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145 | while (($val & 1) == 0) {
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146 | $val >>= 1;
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147 | $val_bit++;
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148 | }
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149 | return($val_bit);
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150 | }
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151 |
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152 | #
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153 | # ãããä½ç½®ã®åºå
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154 | #
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155 | sub parse_bit {
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156 | my($endian, $size, $label) = @_;
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157 | my($offset, $dir, $val, $val_bit);
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158 |
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159 | if ($sil_endian && $endian ne $sil_endian) {
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160 | # ã¨ã³ãã£ã¢ã³ã®ä¸ä¸è´
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161 | print STDERR "genoffset: endian mismatch: $line\n";
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162 | $error = 1;
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163 | }
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164 |
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165 | $offset = 0;
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166 | while ($line = <INFILE>) {
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167 | chomp $line;
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168 | next if ($line =~ /^[ \t]*[#;].*$/);
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169 |
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170 | if ($line =~ /[ \t]*\.([a-zA-Z0-9]+)[ \t]*([^ \t]*)[ \t]*/
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171 | && defined($dir = $directives{$1})) {
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172 | $val = $2;
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173 |
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174 | # 16é²æ°ã¨8é²æ°ã®æ°å¤ã¸ã®å¤æå¦ç
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175 | if ($val =~ /^0x(.+)$/) {
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176 | $val = hex($1);
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177 | }
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178 | elsif ($val =~ /^0(.+)$/) {
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179 | $val = oct($1);
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180 | }
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181 |
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182 | if ($dir eq "") {
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183 | # ãµã¤ãºãç¥ããªããã£ã¬ã¯ãã£ã
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184 | print STDERR "genoffset: unknown directive: $line\n";
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185 | $error = 1;
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186 | }
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187 | elsif ($dir == 0) {
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188 | # èªã¿é£ã°ãã¹ããã£ã¬ã¯ãã£ã
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189 | }
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190 | elsif ($dir == -1) {
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191 | # .zeroãã£ã¬ã¯ãã£ãã®å¦ç
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192 | $offset += $val;
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193 | }
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194 | elsif ($val == 0) {
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195 | # å¤ã0ã®ãã£ã¼ã«ãã®å¦ç
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196 | $offset += $dir;
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197 | }
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198 | else {
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199 | # å¤ã0ã§ãªããã£ã¼ã«ããè¦ã¤ããã°ã«ã¼ããçµäº
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200 | last;
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201 | }
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202 | }
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203 | else {
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204 | # 解æã§ããªãè¡
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205 | print STDERR "genoffset: cannot parse: $line\n";
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206 | $error = 1;
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207 | }
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208 | }
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209 |
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210 | # ãããä½ç½®ãæ¢ã
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211 | $val_bit = search_bit($val);
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212 |
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213 | # ãã¤ãåä½ã«æç®ãã
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214 | if ($endian eq "B") {
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215 | $offset += $dir - 1;
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216 | $offset -= $val_bit >> 3;
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217 | }
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218 | else {
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219 | $offset += $val_bit >> 3;
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220 | }
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221 | $val_bit &= 0x07;
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222 |
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223 | # åºååä½ã«æç®ãã
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224 | if ($size eq "W") {
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225 | if ($endian eq "B") {
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226 | $val_bit += 24;
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227 | $val_bit -= ($offset & 0x03) << 3;
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228 | }
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229 | else {
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230 | $val_bit += ($offset & 0x03) << 3;
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231 | }
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232 | $offset &= ~0x03;
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233 | }
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234 | elsif ($size eq "H") {
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235 | if ($endian eq "B") {
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236 | $val_bit += 8;
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237 | $val_bit -= ($offset & 0x01) << 3;
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238 | }
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239 | else {
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240 | $val_bit += ($offset & 0x01) << 3;
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241 | }
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242 | $offset &= ~0x01;
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243 | }
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244 |
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245 | # å®ç¾©ã®åºå
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246 | $label =~ s/^_//;
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247 | printf "#define %s\t%d\n",$label,$offset;
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248 | printf "#define %s_bit\t%d\n",$label,$val_bit;
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249 | printf "#define %s_mask\t0x%x\n",$label,(1 << $val_bit);
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250 | }
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251 |
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252 | #
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253 | # ã¡ã¤ã³ã«ã¼ãã³
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254 | #
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255 | print "/* This file is generated by genoffset. */\n";
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256 | print "\n";
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257 |
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258 | $error = 0;
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259 | open(INFILE, $infile) || die "Cannot open $infile";
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260 | while ($line = <INFILE>) {
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261 | chomp $line;
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262 |
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263 | if ($line =~ /^[ \t]*OFFSET_DEF ([^ \t]+) = [#\$]?([^ \t]+)/) {
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264 | parse_offset($1, $2);
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265 | }
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266 | elsif ($line =~ /^[ \t]*_?BIT_REF_([0-9]+):/) {
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267 | ref_bit($1);
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268 | }
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269 | elsif ($line =~ /^[ \t]*SIL_ENDIAN = ([BL])/) {
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270 | $sil_endian = $1;
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271 | }
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272 | }
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273 | #
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274 | # ã³ã³ãã¤ã©ãã°ãã¼ãã«å¤æ°ã®é
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275 | ç½®é åºãå¤æ´ããã¨ï¼BIT_REF_?ãä¸ã«ãª
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276 | # ãå¯è½æ§ãããããï¼é ããèªã¿ç´ãï¼
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277 | #
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278 | seek(INFILE, 0, SEEK_SET);
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279 | while ($line = <INFILE>) {
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280 | chomp $line;
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281 |
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282 | if ($line =~ /^[ \t]*_?BIT_([BL])([BHW])_([^ \t]+):/) {
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283 | parse_bit($1, $2, $3);
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284 | }
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285 | }
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286 | close(INFILE);
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287 | exit($error);
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