Mercurial > hg > index.cgi
annotate lwlink/main.c @ 78:19df13313b27
Updated default linkscript for lwex target
author | lost@l-w.ca |
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date | Sat, 23 Apr 2011 21:02:04 -0600 |
parents | fdc11ef4115b |
children | 08fb11004df9 |
rev | line source |
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1 /* |
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2 main.c |
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3 Copyright © 2009 William Astle |
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4 |
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5 This file is part of LWLINK. |
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6 |
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7 LWLINK is free software: you can redistribute it and/or modify it under the |
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8 terms of the GNU General Public License as published by the Free Software |
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9 Foundation, either version 3 of the License, or (at your option) any later |
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10 version. |
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11 |
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12 This program is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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15 more details. |
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16 |
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17 You should have received a copy of the GNU General Public License along with |
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18 this program. If not, see <http://www.gnu.org/licenses/>. |
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19 |
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20 |
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21 Implements the program startup code |
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22 |
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23 */ |
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24 |
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25 #include <errno.h> |
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26 #include <stdio.h> |
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27 #include <stdlib.h> |
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28 #include <unistd.h> |
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29 #include <string.h> |
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30 |
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31 #include <lw_cmdline.h> |
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32 |
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33 #include "lwlink.h" |
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34 |
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35 char *program_name; |
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36 |
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37 // command line option handling |
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38 #define PROGVER "lwlink from " PACKAGE_STRING |
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39 |
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40 static int parse_opts(int key, char *arg, void *state) |
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41 { |
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42 switch (key) |
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43 { |
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44 case 'o': |
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45 // output |
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46 outfile = arg; |
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47 break; |
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48 |
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49 case 's': |
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50 // script file |
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51 scriptfile = arg; |
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52 break; |
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53 |
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54 case 'd': |
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55 // debug |
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56 debug_level++; |
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57 break; |
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58 |
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59 case 'b': |
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60 // decb output |
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61 outformat = OUTPUT_DECB; |
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62 break; |
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63 |
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64 case 'r': |
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65 // raw binary output |
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66 outformat = OUTPUT_RAW; |
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67 break; |
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68 |
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69 case 'f': |
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70 // output format |
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71 if (!strcasecmp(arg, "decb")) |
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72 outformat = OUTPUT_DECB; |
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73 else if (!strcasecmp(arg, "raw")) |
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74 outformat = OUTPUT_RAW; |
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75 else if (!strcasecmp(arg, "lwex0") || !strcasecmp(arg, "lwex")) |
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76 outformat = OUTPUT_LWEX0; |
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77 else |
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78 { |
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79 fprintf(stderr, "Invalid output format: %s\n", arg); |
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80 exit(1); |
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81 } |
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82 break; |
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83 case lw_cmdline_key_end: |
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84 // done; sanity check |
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85 if (!outfile) |
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86 outfile = "a.out"; |
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87 break; |
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88 |
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89 case 'l': |
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90 add_input_library(arg); |
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91 break; |
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92 |
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93 case 'L': |
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94 add_library_search(arg); |
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95 break; |
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96 |
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97 case 0x100: |
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98 add_section_base(arg); |
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99 break; |
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100 |
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101 case 'm': |
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102 map_file = arg; |
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103 break; |
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104 |
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105 case lw_cmdline_key_arg: |
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106 add_input_file(arg); |
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107 break; |
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108 |
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109 default: |
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110 return lw_cmdline_err_unknown; |
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111 } |
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112 return 0; |
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113 } |
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114 |
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115 static struct lw_cmdline_options options[] = |
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116 { |
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117 { "output", 'o', "FILE", 0, |
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118 "Output to FILE"}, |
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119 { "debug", 'd', 0, 0, |
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120 "Set debug mode"}, |
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121 { "format", 'f', "TYPE", 0, |
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122 "Select output format: decb, raw, lwex"}, |
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123 { "decb", 'b', 0, 0, |
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124 "Generate DECB .bin format output, equivalent of --format=decb"}, |
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125 { "raw", 'r', 0, 0, |
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126 "Generate raw binary format output, equivalent of --format=raw"}, |
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127 { "script", 's', "FILE", 0, |
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128 "Specify the linking script (overrides the built in defaults)"}, |
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129 { "library", 'l', "LIBSPEC", 0, |
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130 "Read library libLIBSPEC.a from the search path" }, |
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131 { "library-path", 'L', "DIR", 0, |
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132 "Add DIR to the library search path" }, |
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133 { "section-base", 0x100, "SECT=BASE", 0, |
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134 "Load section SECT at BASE" }, |
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135 { "map", 'm', "FILE", 0, |
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136 "Output informaiton about the link" }, |
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137 { 0 } |
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138 }; |
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139 |
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140 static struct lw_cmdline_parser cmdline_parser = |
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141 { |
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142 options, |
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143 parse_opts, |
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144 "INPUTFILE ...", |
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145 "lwlink, a HD6309 and MC6809 cross-linker", |
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146 PROGVER |
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147 }; |
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148 |
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149 extern void read_files(void); |
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150 extern void setup_script(void); |
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151 extern void resolve_files(void); |
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152 extern void resolve_sections(void); |
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153 extern void resolve_references(void); |
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154 extern void do_output(void); |
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155 extern void display_map(void); |
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156 |
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157 // main function; parse command line, set up assembler state, and run the |
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158 // assembler on the first file |
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159 int main(int argc, char **argv) |
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160 { |
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161 program_name = argv[0]; |
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162 |
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163 lw_cmdline_parse(&cmdline_parser, argc, argv, 0, 0, NULL); |
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164 if (ninputfiles == 0) |
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165 { |
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166 fprintf(stderr, "No input files\n"); |
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167 exit(1); |
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168 } |
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169 |
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170 unlink(outfile); |
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171 |
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172 // handle the linker script |
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173 setup_script(); |
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174 |
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175 // read the input files |
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176 read_files(); |
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177 |
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178 // trace unresolved references and determine which non-forced |
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179 // objects must be included |
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180 resolve_files(); |
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181 |
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182 // resolve section bases and section order |
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183 resolve_sections(); |
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184 |
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185 // resolve incomplete references |
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186 resolve_references(); |
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187 |
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188 // do the actual output |
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189 do_output(); |
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190 |
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191 // display/output the link map |
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192 if (map_file) |
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193 display_map(); |
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194 |
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195 exit(0); |
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196 } |