1 | /* |
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2 | * Copyright (c) 2011-2012, Chris Johns <chrisj@rtems.org> |
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3 | * |
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4 | * Permission to use, copy, modify, and/or distribute this software for any |
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5 | * purpose with or without fee is hereby granted, provided that the above |
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6 | * copyright notice and this permission notice appear in all copies. |
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7 | * |
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8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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15 | */ |
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16 | /** |
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17 | * @file |
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18 | * |
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19 | * @ingroup rtems_rld |
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20 | * |
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21 | * @brief RTEMS RA Linker Main manages opions, sequence of operations and exceptions. |
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22 | * |
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23 | */ |
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24 | |
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25 | #if HAVE_CONFIG_H |
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26 | #include "config.h" |
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27 | #endif |
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28 | |
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29 | #include <iostream> |
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30 | |
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31 | #include <cxxabi.h> |
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32 | #include <signal.h> |
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33 | #include <stdlib.h> |
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34 | #include <string.h> |
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35 | #include <unistd.h> |
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36 | |
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37 | #include <getopt.h> |
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38 | |
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39 | #include <rld.h> |
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40 | #include <rld-cc.h> |
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41 | #include <rld-rap.h> |
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42 | #include <rld-outputter.h> |
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43 | #include <rld-process.h> |
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44 | #include <rld-resolver.h> |
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45 | |
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46 | #ifndef HAVE_KILL |
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47 | #define kill(p,s) raise(s) |
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48 | #endif |
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49 | |
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50 | /** |
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51 | * RTEMS Linker options. This needs to be rewritten to be like cc where only a |
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52 | * single '-' and long options is present. |
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53 | */ |
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54 | static struct option rld_opts[] = { |
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55 | { "help", no_argument, NULL, 'h' }, |
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56 | { "version", no_argument, NULL, 'V' }, |
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57 | { "verbose", no_argument, NULL, 'v' }, |
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58 | { "output-path", required_argument, NULL, 'p' }, |
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59 | { "output", required_argument, NULL, 'o' }, |
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60 | { "lib-path", required_argument, NULL, 'L' }, |
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61 | { "lib", required_argument, NULL, 'l' }, |
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62 | { "no-stdlibs", no_argument, NULL, 'n' }, |
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63 | { "cc", required_argument, NULL, 'C' }, |
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64 | { "exec-prefix", required_argument, NULL, 'E' }, |
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65 | { "march", required_argument, NULL, 'a' }, |
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66 | { "mcpu", required_argument, NULL, 'c' }, |
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67 | { "rap-strip", no_argument, NULL, 'S' }, |
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68 | { "rpath", required_argument, NULL, 'R' }, |
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69 | { "add-rap", required_argument, NULL, 'A' }, |
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70 | { "replace-rap", required_argument, NULL, 'r' }, |
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71 | { "delete-rap", required_argument, NULL, 'd' }, |
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72 | { NULL, 0, NULL, 0 } |
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73 | }; |
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74 | |
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75 | #if TO_BE_USED_FOR_THE_UNDEFINES |
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76 | void |
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77 | split_on_equals (const std::string& opt, std::string& left, std::string& right) |
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78 | { |
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79 | std::string::size_type eq = opt.find_first_of('='); |
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80 | } |
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81 | #endif |
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82 | |
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83 | void |
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84 | usage (int exit_code) |
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85 | { |
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86 | std::cout << "rtems-ra [options] objects" << std::endl |
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87 | << "Options and arguments:" << std::endl |
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88 | << " -h : help (also --help)" << std::endl |
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89 | << " -V : print linker version number and exit (also --version)" << std::endl |
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90 | << " -v : verbose (trace import parts), can supply multiple times" << std::endl |
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91 | << " to increase verbosity (also --verbose)" << std::endl |
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92 | << " -o name : linker output, this options is just" << std::endl |
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93 | << " for waf, it will not output to file (also --output)" << std::endl |
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94 | << " -p path : output path (also --output-path)" << std::endl |
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95 | << " -L path : path to a library, add multiple for more than" << std::endl |
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96 | << " one path (also --lib-path)" << std::endl |
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97 | << " -l lib : add lib to the libraries searched, add multiple" << std::endl |
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98 | << " for more than one library (also --lib)" << std::endl |
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99 | << " -n : do not search standard libraries (also --no-stdlibs)" << std::endl |
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100 | << " -C file : execute file as the target C compiler (also --cc)" << std::endl |
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101 | << " -E prefix : the RTEMS tool prefix (also --exec-prefix)" << std::endl |
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102 | << " -c cflags : C compiler flags (also --cflags)" << std::endl |
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103 | << " -S : do not include file details (also --rap-strip)" << std::endl |
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104 | << " -R : include file paths (also --rpath)" << std::endl |
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105 | << " -A : Add rap files (also --Add-rap)" << std::endl |
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106 | << " -r : replace rap files (also --replace-rap)" << std::endl |
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107 | << " -d : delete rap files (also --delete-rap)" << std::endl |
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108 | << " -Wl,opts : link compatible flags, ignored" << std::endl |
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109 | << "Output Formats:" << std::endl |
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110 | << " ra - RTEMS archive container of rap files" << std::endl; |
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111 | ::exit (exit_code); |
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112 | } |
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113 | |
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114 | static void |
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115 | fatal_signal (int signum) |
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116 | { |
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117 | signal (signum, SIG_DFL); |
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118 | |
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119 | rld::process::temporaries_clean_up (); |
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120 | |
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121 | /* |
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122 | * Get the same signal again, this time not handled, so its normal effect |
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123 | * occurs. |
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124 | */ |
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125 | kill (getpid (), signum); |
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126 | } |
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127 | |
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128 | static void |
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129 | setup_signals (void) |
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130 | { |
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131 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) |
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132 | signal (SIGINT, fatal_signal); |
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133 | #ifdef SIGHUP |
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134 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) |
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135 | signal (SIGHUP, fatal_signal); |
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136 | #endif |
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137 | if (signal (SIGTERM, SIG_IGN) != SIG_IGN) |
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138 | signal (SIGTERM, fatal_signal); |
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139 | #ifdef SIGPIPE |
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140 | if (signal (SIGPIPE, SIG_IGN) != SIG_IGN) |
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141 | signal (SIGPIPE, fatal_signal); |
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142 | #endif |
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143 | #ifdef SIGCHLD |
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144 | signal (SIGCHLD, SIG_DFL); |
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145 | #endif |
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146 | } |
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147 | |
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148 | int |
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149 | main (int argc, char* argv[]) |
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150 | { |
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151 | int ec = 0; |
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152 | |
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153 | setup_signals (); |
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154 | |
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155 | try |
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156 | { |
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157 | rld::path::paths libpaths; |
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158 | rld::path::paths libs; |
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159 | rld::path::paths libraries; |
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160 | rld::path::paths outra; |
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161 | rld::path::paths raps_add; |
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162 | rld::path::paths raps_replace; |
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163 | rld::path::paths raps_delete; |
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164 | std::string cc_name; |
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165 | std::string entry; |
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166 | std::string exit; |
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167 | std::string output_path = "./"; |
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168 | std::string output = "a.ra"; |
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169 | bool standard_libs = true; |
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170 | bool convert = true; |
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171 | rld::files::object_list dependents; |
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172 | |
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173 | libpaths.push_back ("."); |
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174 | dependents.clear (); |
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175 | |
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176 | while (true) |
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177 | { |
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178 | int opt = ::getopt_long (argc, argv, "hVvnSa:p:L:l:o:C:E:c:R:W:A:r:d:", rld_opts, NULL); |
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179 | if (opt < 0) |
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180 | break; |
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181 | |
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182 | switch (opt) |
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183 | { |
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184 | case 'V': |
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185 | std::cout << "rtems-ra (RTEMS Linker) " << rld::version () |
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186 | << std::endl; |
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187 | ::exit (0); |
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188 | break; |
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189 | |
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190 | case 'v': |
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191 | rld::verbose_inc (); |
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192 | break; |
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193 | |
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194 | case 'l': |
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195 | libs.push_back (optarg); |
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196 | break; |
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197 | |
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198 | case 'A': |
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199 | /* |
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200 | * Add rap files to ra file. |
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201 | */ |
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202 | raps_add.push_back (optarg); |
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203 | convert = false; |
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204 | break; |
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205 | |
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206 | case 'r': |
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207 | /* |
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208 | * replace rap files to ra file. |
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209 | */ |
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210 | raps_replace.push_back (optarg); |
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211 | convert = false; |
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212 | break; |
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213 | |
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214 | case 'd': |
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215 | /* |
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216 | * delete rap files to ra file. |
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217 | */ |
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218 | raps_delete.push_back (optarg); |
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219 | convert = false; |
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220 | break; |
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221 | |
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222 | case 'L': |
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223 | if ((optarg[::strlen (optarg) - 1] == '/') || |
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224 | (optarg[::strlen (optarg) - 1] == '\\')) |
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225 | optarg[::strlen (optarg) - 1] = '\0'; |
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226 | libpaths.push_back (optarg); |
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227 | break; |
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228 | |
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229 | case 'n': |
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230 | standard_libs = false; |
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231 | break; |
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232 | |
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233 | case 'p': |
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234 | std::cout << "Output path: " << optarg << std::endl; |
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235 | output_path = optarg; |
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236 | break; |
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237 | |
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238 | case 'o': |
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239 | output = optarg; |
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240 | break; |
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241 | |
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242 | case 'C': |
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243 | if (rld::cc::is_exec_prefix_set ()) |
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244 | std::cerr << "warning: exec-prefix ignored when CC provided" << std::endl; |
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245 | rld::cc::set_cc (optarg); |
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246 | break; |
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247 | |
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248 | case 'E': |
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249 | if (rld::cc::is_cc_set ()) |
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250 | std::cerr << "warning: exec-prefix ignored when CC provided" << std::endl; |
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251 | rld::cc::set_exec_prefix (optarg); |
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252 | break; |
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253 | |
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254 | case 'c': |
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255 | rld::cc::set_flags (optarg, rld::cc::ft_cflags); |
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256 | break; |
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257 | |
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258 | case 'S': |
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259 | rld::rap::add_obj_details = false; |
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260 | break; |
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261 | |
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262 | case 'R': |
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263 | rld::rap::rpath += optarg; |
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264 | rld::rap::rpath += '\0'; |
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265 | break; |
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266 | |
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267 | case 'W': |
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268 | /* ignore linker compatiable flags */ |
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269 | break; |
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270 | |
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271 | case '?': |
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272 | usage (3); |
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273 | break; |
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274 | |
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275 | case 'h': |
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276 | usage (0); |
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277 | break; |
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278 | } |
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279 | } |
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280 | |
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281 | argc -= optind; |
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282 | argv += optind; |
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283 | |
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284 | if (rld::verbose ()) |
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285 | std::cout << "RTEMS RAP RA Linker " << rld::version () << std::endl; |
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286 | |
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287 | /* |
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288 | * libs can be elf archive and rap archive |
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289 | */ |
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290 | while (argc--) |
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291 | libs.push_back (*argv++); |
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292 | |
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293 | /* |
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294 | * If the full path to CC is not provided and the exec-prefix is not set by |
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295 | * the command line see if it can be detected from the object file |
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296 | * types. This must be after we have added the object files because they |
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297 | * are used when detecting. |
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298 | */ |
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299 | if (!rld::cc::is_cc_set () && !rld::cc::is_exec_prefix_set ()) |
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300 | rld::cc::set_exec_prefix (rld::elf::machine_type ()); |
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301 | |
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302 | if (convert) |
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303 | { |
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304 | /* |
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305 | * Get the standard library paths |
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306 | */ |
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307 | if (standard_libs) |
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308 | rld::cc::get_standard_libpaths (libpaths); |
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309 | /* |
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310 | * Get the command line libraries. |
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311 | */ |
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312 | rld::files::find_libraries (libraries, libpaths, libs); |
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313 | |
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314 | /* |
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315 | * Are we to load standard libraries ? |
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316 | */ |
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317 | if (standard_libs) |
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318 | rld::cc::get_standard_libs (libraries, libpaths); |
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319 | |
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320 | /* |
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321 | * Convert ar file to ra file |
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322 | */ |
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323 | for (rld::path::paths::iterator p = libraries.begin (); p != libraries.end (); ++p) |
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324 | { |
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325 | rld::path::paths library; |
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326 | rld::symbols::table symbols; |
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327 | rld::files::cache* cache = new rld::files::cache (); |
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328 | |
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329 | library.clear (); |
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330 | library.push_back (*p); |
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331 | |
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332 | /* |
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333 | * Open the cache. |
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334 | */ |
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335 | cache->open (); |
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336 | |
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337 | /* |
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338 | * Load the library to the cache. |
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339 | */ |
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340 | cache->add_libraries (library); |
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341 | |
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342 | cache->load_symbols (symbols); |
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343 | |
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344 | try |
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345 | { |
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346 | |
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347 | rld::files::objects& objs = cache->get_objects (); |
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348 | rld::path::paths raobjects; |
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349 | |
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350 | int pos = -1; |
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351 | std::string rap_name; |
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352 | for (rld::files::objects::iterator obi = objs.begin (); |
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353 | obi != objs.end (); |
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354 | ++obi) |
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355 | { |
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356 | rld::files::object* obj = (*obi).second; |
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357 | |
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358 | dependents.clear (); |
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359 | |
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360 | rap_name = obj->name ().oname (); |
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361 | |
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362 | pos = obj->name ().oname ().rfind ('.', rap_name.length ()); |
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363 | if (pos != -1) |
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364 | { |
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365 | rap_name.erase (pos, rap_name.length ()); |
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366 | } |
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367 | |
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368 | rap_name += ".rap"; |
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369 | |
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370 | dependents.push_back (obj); |
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371 | |
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372 | raobjects.push_back (rap_name); |
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373 | |
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374 | /* Todo: include absolute name for rap_name */ |
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375 | |
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376 | rld::outputter::application (rap_name, entry, exit, |
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377 | dependents, *cache, symbols, |
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378 | true); |
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379 | } |
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380 | |
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381 | dependents.clear (); |
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382 | for (rld::path::paths::iterator ni = raobjects.begin (); ni != raobjects.end (); ++ni) |
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383 | { |
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384 | rld::files::object* obj = new rld::files::object (*ni); |
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385 | dependents.push_back (obj); |
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386 | } |
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387 | |
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388 | bool ra_rap = true; |
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389 | bool ra_exist = false; |
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390 | rld::files::cache cachera; |
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391 | std::string raname = *p; |
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392 | |
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393 | pos = -1; |
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394 | pos = raname.rfind ('/', raname.length ()); |
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395 | if (pos != -1) |
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396 | { |
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397 | raname.erase (0, pos); |
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398 | } |
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399 | |
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400 | pos = -1; |
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401 | pos = raname.rfind ('.', raname.length ()); |
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402 | if (pos != -1) |
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403 | { |
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404 | raname.erase (pos, raname.length ()); |
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405 | } |
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406 | raname += ".ra"; |
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407 | |
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408 | raname = output_path + raname; |
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409 | |
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410 | rld::outputter::archivera (raname, dependents, cachera, |
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411 | ra_exist, ra_rap); |
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412 | std::cout << "Generated: " << raname << std::endl; |
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413 | |
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414 | |
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415 | for (rld::files::object_list::iterator oi = dependents.begin (); |
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416 | oi != dependents.end (); |
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417 | ++oi) |
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418 | { |
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419 | rld::files::object& obj = *(*oi); |
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420 | ::unlink (obj.name ().oname ().c_str ()); |
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421 | } |
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422 | } |
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423 | catch (...) |
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424 | { |
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425 | cache->archives_end (); |
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426 | throw; |
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427 | } |
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428 | |
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429 | cache->archives_end (); |
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430 | delete cache; |
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431 | } |
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432 | } |
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433 | else |
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434 | { |
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435 | /* |
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436 | * Add, replace, delete files from the ra file. |
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437 | */ |
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438 | for (rld::path::paths::iterator pl = libs.begin (); pl != libs.end (); ++pl) |
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439 | { |
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440 | rld::path::paths library; |
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441 | rld::files::cache* cache = new rld::files::cache (); |
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442 | |
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443 | library.clear (); |
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444 | library.push_back (*pl); |
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445 | |
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446 | /* |
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447 | * Open the cache. |
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448 | */ |
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449 | cache->open (); |
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450 | |
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451 | /* |
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452 | * Load the library to the cache. |
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453 | */ |
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454 | cache->add_libraries (library); |
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455 | |
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456 | rld::files::objects& objs = cache->get_objects (); |
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457 | rld::path::paths raobjects; |
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458 | |
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459 | std::string rap_name; |
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460 | bool rap_delete = false; |
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461 | |
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462 | dependents.clear (); |
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463 | /* |
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464 | * Delete rap files in ra file. |
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465 | */ |
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466 | for (rld::files::objects::iterator obi = objs.begin (); |
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467 | obi != objs.end (); |
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468 | ++obi) |
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469 | { |
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470 | rld::files::object* obj = (*obi).second; |
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471 | |
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472 | rap_name = obj->name ().oname (); |
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473 | rap_delete = false; |
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474 | |
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475 | for (rld::path::paths::iterator pa = raps_delete.begin (); |
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476 | pa != raps_delete.end (); |
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477 | ++pa) |
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478 | { |
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479 | if (*pa == rap_name) |
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480 | { |
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481 | rap_delete = true; |
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482 | break; |
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483 | } |
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484 | } |
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485 | |
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486 | if (!rap_delete) |
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487 | dependents.push_back (obj); |
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488 | } |
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489 | |
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490 | /* |
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491 | * Add rap files into ra file, add supports replace. |
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492 | */ |
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493 | rld::path::paths rap_objects; |
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494 | bool rap_exist = false; |
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495 | |
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496 | for (rld::path::paths::iterator pa = raps_add.begin (); |
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497 | pa != raps_add.end (); |
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498 | ++pa) |
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499 | { |
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500 | rap_exist = false; |
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501 | |
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502 | for (rld::files::object_list::iterator oi = dependents.begin (); |
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503 | oi != dependents.end (); |
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504 | ++oi) |
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505 | { |
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506 | rld::files::object& obj = *(*oi); |
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507 | if (*pa == obj.name ().oname ()) |
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508 | { |
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509 | rap_exist = true; |
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510 | raps_replace.push_back (*pa); |
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511 | break; |
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512 | } |
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513 | } |
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514 | |
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515 | if (!rap_exist) |
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516 | rap_objects.push_back (*pa); |
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517 | } |
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518 | |
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519 | for (rld::path::paths::iterator pa = rap_objects.begin (); |
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520 | pa != rap_objects.end (); |
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521 | ++pa) |
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522 | { |
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523 | rld::files::object* obj = new rld::files::object (*pa); |
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524 | if (!obj->name ().exists ()) |
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525 | { |
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526 | delete obj; |
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527 | throw rld::error ("file not exist", "rap-add"); |
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528 | } |
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529 | else dependents.push_back (obj); |
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530 | } |
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531 | |
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532 | /* |
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533 | * Replace rap files in ra file |
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534 | */ |
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535 | rld::files::cache cachera; |
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536 | bool rap_replace = false; |
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537 | |
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538 | rap_objects.clear (); |
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539 | cachera.open (); |
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540 | |
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541 | for (rld::path::paths::iterator pa = raps_replace.begin (); |
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542 | pa != raps_replace.end (); |
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543 | ++pa) |
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544 | { |
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545 | rap_replace = false; |
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546 | |
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547 | for (rld::files::object_list::iterator oi = dependents.begin (); |
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548 | oi != dependents.end (); |
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549 | ) |
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550 | { |
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551 | rld::files::object& obj = *(*oi); |
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552 | if (*pa == obj.name ().oname ()) |
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553 | { |
---|
554 | rap_replace = true; |
---|
555 | dependents.erase (oi++); |
---|
556 | break; |
---|
557 | } |
---|
558 | ++oi; |
---|
559 | } |
---|
560 | |
---|
561 | if (rap_replace) |
---|
562 | rap_objects.push_back (*pa); |
---|
563 | } |
---|
564 | |
---|
565 | for (rld::path::paths::iterator pa = rap_objects.begin (); |
---|
566 | pa != rap_objects.end (); |
---|
567 | ++pa) |
---|
568 | { |
---|
569 | rld::files::object* obj = new rld::files::object (*pa); |
---|
570 | if (!obj->name ().exists ()) |
---|
571 | { |
---|
572 | delete obj; |
---|
573 | throw rld::error ("file not exist", "rap-add"); |
---|
574 | } |
---|
575 | else dependents.push_back (obj); |
---|
576 | } |
---|
577 | |
---|
578 | rld::outputter::archivera (*pl, dependents, cachera, |
---|
579 | true, true); |
---|
580 | std::cout << "End" << std::endl; |
---|
581 | |
---|
582 | cache->archives_end (); |
---|
583 | delete cache; |
---|
584 | } |
---|
585 | } |
---|
586 | } |
---|
587 | catch (rld::error re) |
---|
588 | { |
---|
589 | std::cerr << "error: " |
---|
590 | << re.where << ": " << re.what |
---|
591 | << std::endl; |
---|
592 | ec = 10; |
---|
593 | } |
---|
594 | catch (std::exception e) |
---|
595 | { |
---|
596 | int status; |
---|
597 | char* realname; |
---|
598 | realname = abi::__cxa_demangle (e.what(), 0, 0, &status); |
---|
599 | std::cerr << "error: exception: " << realname << " ["; |
---|
600 | ::free (realname); |
---|
601 | const std::type_info &ti = typeid (e); |
---|
602 | realname = abi::__cxa_demangle (ti.name(), 0, 0, &status); |
---|
603 | std::cerr << realname << "] " << e.what () << std::endl << std::flush; |
---|
604 | ::free (realname); |
---|
605 | ec = 11; |
---|
606 | } |
---|
607 | catch (...) |
---|
608 | { |
---|
609 | /* |
---|
610 | * Helps to know if this happens. |
---|
611 | */ |
---|
612 | std::cerr << "error: unhandled exception" << std::endl; |
---|
613 | ec = 12; |
---|
614 | } |
---|
615 | |
---|
616 | return ec; |
---|
617 | } |
---|