Mercurial > projects > ldc
annotate gen/linker.cpp @ 1292:ad41053c336e
Make static int[] a = [1, 2]; a[0] = 4; not segfault
by making the array data ptr a non-const global variable.
author | Christian Kamm <kamm incasoftware de> |
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date | Sun, 03 May 2009 11:16:54 +0200 |
parents | 461a85f0db31 |
children | 847b767b2d0b |
rev | line source |
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1 #include "gen/linker.h" |
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2 #include "gen/llvm.h" |
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3 #include "llvm/Linker.h" |
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4 #include "llvm/System/Program.h" |
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5 #if _WIN32 |
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6 #include "llvm/Support/SystemUtils.h" |
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7 #endif |
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8 |
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9 #include "root.h" |
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10 #include "mars.h" |
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11 #include "module.h" |
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12 |
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13 #define NO_COUT_LOGGER |
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14 #include "gen/logger.h" |
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15 #include "gen/cl_options.h" |
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16 #include "gen/optimizer.h" |
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17 |
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18 ////////////////////////////////////////////////////////////////////////////// |
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19 |
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20 // Is this useful? |
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21 llvm::cl::opt<bool> quiet("quiet", |
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22 llvm::cl::desc("Suppress output of link command (unless -v is also passed)"), |
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23 llvm::cl::Hidden, |
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24 llvm::cl::ZeroOrMore, |
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25 llvm::cl::init(true)); |
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26 |
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27 ////////////////////////////////////////////////////////////////////////////// |
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28 |
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29 typedef std::vector<llvm::Module*> Module_vector; |
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30 |
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31 void linkModules(llvm::Module* dst, const Module_vector& MV) |
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32 { |
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33 if (MV.empty()) |
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34 return; |
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35 |
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36 llvm::Linker linker("ldc", dst); |
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37 |
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38 std::string err; |
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39 for (Module_vector::const_iterator i=MV.begin(); i!=MV.end(); ++i) |
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40 { |
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41 if (!linker.LinkInModule(*i, &err)) |
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42 { |
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43 error("%s", err.c_str()); |
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44 fatal(); |
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45 } |
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46 } |
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47 } |
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48 |
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49 ////////////////////////////////////////////////////////////////////////////// |
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50 |
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51 static llvm::sys::Path gExePath; |
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52 |
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53 int linkExecutable(const char* argv0) |
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54 { |
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55 Logger::println("*** Linking executable ***"); |
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56 |
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57 // error string |
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58 std::string errstr; |
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59 |
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60 // find the llvm-ld program |
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61 llvm::sys::Path ldpath = llvm::sys::Program::FindProgramByName("llvm-ld"); |
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62 if (ldpath.isEmpty()) |
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63 { |
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64 ldpath.set("llvm-ld"); |
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65 } |
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66 |
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67 // build arguments |
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68 std::vector<const char*> args; |
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69 |
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70 // first the program name ?? |
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71 args.push_back("llvm-ld"); |
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72 |
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73 // output filename |
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74 std::string exestr; |
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75 if (global.params.exefile) |
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76 { // explicit |
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77 exestr = global.params.exefile; |
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78 } |
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79 else |
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80 { // inferred |
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81 // try root module name |
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82 if (Module::rootModule) |
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83 exestr = Module::rootModule->toChars(); |
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84 else |
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85 exestr = "a.out"; |
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86 } |
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87 if (global.params.os == OSWindows && !(exestr.substr(exestr.length()-4) == ".exe")) |
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88 exestr.append(".exe"); |
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89 |
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90 std::string outopt = "-o=" + exestr; |
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91 args.push_back(outopt.c_str()); |
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92 |
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93 // set the global gExePath |
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94 gExePath.set(exestr); |
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95 assert(gExePath.isValid()); |
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96 |
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97 // create path to exe |
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98 llvm::sys::Path exedir(gExePath); |
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99 exedir.set(gExePath.getDirname()); |
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100 if (!exedir.exists()) |
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101 { |
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102 exedir.createDirectoryOnDisk(true, &errstr); |
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103 if (!errstr.empty()) |
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104 { |
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105 error("failed to create path to linking output: %s\n%s", exedir.c_str(), errstr.c_str()); |
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106 fatal(); |
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107 } |
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108 } |
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109 |
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110 // strip debug info |
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111 if (!global.params.symdebug) |
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112 args.push_back("-strip-debug"); |
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113 |
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114 // optimization level |
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115 if (!optimize()) |
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116 args.push_back("-disable-opt"); |
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117 else |
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118 { |
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119 const char* s = 0; |
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120 switch(optLevel()) |
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121 { |
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122 case 0: |
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123 args.push_back("-disable-opt"); |
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124 break; |
276
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125 case 1: |
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126 args.push_back("-globaldce"); |
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127 args.push_back("-disable-opt"); |
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128 args.push_back("-globaldce"); |
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129 args.push_back("-mem2reg"); |
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130 case 2: |
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131 case 3: |
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132 case 4: |
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133 case 5: |
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134 // use default optimization |
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135 break; |
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136 default: |
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137 assert(0); |
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138 } |
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139 } |
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140 |
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141 // inlining |
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142 if (!(global.params.useInline || doInline())) |
276
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143 { |
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144 args.push_back("-disable-inlining"); |
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145 } |
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146 |
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147 // additional linker switches |
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148 for (int i = 0; i < global.params.linkswitches->dim; i++) |
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149 { |
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150 char *p = (char *)global.params.linkswitches->data[i]; |
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151 args.push_back(p); |
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152 } |
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153 |
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154 // native please |
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155 args.push_back("-native"); |
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156 |
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157 |
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158 // user libs |
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159 for (int i = 0; i < global.params.libfiles->dim; i++) |
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160 { |
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161 char *p = (char *)global.params.libfiles->data[i]; |
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162 args.push_back(p); |
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163 } |
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164 |
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165 // default libs |
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166 switch(global.params.os) { |
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167 case OSLinux: |
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168 case OSMacOSX: |
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169 args.push_back("-ldl"); |
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170 case OSFreeBSD: |
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171 args.push_back("-lpthread"); |
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172 args.push_back("-lm"); |
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173 break; |
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174 |
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175 case OSWindows: |
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176 // FIXME: I'd assume kernel32 etc |
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177 break; |
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178 } |
276
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179 |
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180 // object files |
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181 for (int i = 0; i < global.params.objfiles->dim; i++) |
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182 { |
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183 char *p = (char *)global.params.objfiles->data[i]; |
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184 args.push_back(p); |
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185 } |
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186 |
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187 // print link command? |
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188 if (!quiet || global.params.verbose) |
276
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189 { |
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190 // Print it |
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191 for (int i = 0; i < args.size(); i++) |
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192 printf("%s ", args[i]); |
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193 printf("\n"); |
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194 fflush(stdout); |
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195 } |
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196 |
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197 // terminate args list |
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198 args.push_back(NULL); |
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199 |
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200 // try to call linker!!! |
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201 if (int status = llvm::sys::Program::ExecuteAndWait(ldpath, &args[0], NULL, NULL, 0,0, &errstr)) |
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202 { |
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203 error("linking failed:\nstatus: %d", status); |
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204 if (!errstr.empty()) |
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205 error("message: %s", errstr.c_str()); |
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206 fatal(); |
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207 } |
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208 } |
277
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209 |
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210 ////////////////////////////////////////////////////////////////////////////// |
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211 |
677
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212 int linkObjToExecutable(const char* argv0) |
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213 { |
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214 Logger::println("*** Linking executable ***"); |
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215 |
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216 // error string |
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217 std::string errstr; |
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218 |
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219 const char *cc; |
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220 #if !_WIN32 |
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221 cc = getenv("CC"); |
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222 if (!cc) |
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223 #endif |
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224 cc = "gcc"; |
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225 |
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226 // find gcc for linking |
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227 llvm::sys::Path gcc = llvm::sys::Program::FindProgramByName(cc); |
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228 if (gcc.isEmpty()) |
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229 { |
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230 gcc.set(cc); |
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231 } |
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232 |
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233 // build arguments |
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234 std::vector<const char*> args; |
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235 |
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236 // first the program name ?? |
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237 args.push_back(cc); |
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238 |
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239 // object files |
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240 for (int i = 0; i < global.params.objfiles->dim; i++) |
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241 { |
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242 char *p = (char *)global.params.objfiles->data[i]; |
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243 args.push_back(p); |
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244 } |
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245 |
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246 // output filename |
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247 std::string exestr; |
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248 if (global.params.exefile) |
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249 { // explicit |
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250 exestr = global.params.exefile; |
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251 } |
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252 else |
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253 { // inferred |
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254 // try root module name |
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255 if (Module::rootModule) |
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256 exestr = Module::rootModule->toChars(); |
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257 else if (global.params.objfiles->dim) |
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258 exestr = FileName::removeExt((char*)global.params.objfiles->data[0]); |
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259 else |
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260 exestr = "a.out"; |
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261 } |
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262 if (global.params.os == OSWindows && !(exestr.rfind(".exe") == exestr.length()-4)) |
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263 exestr.append(".exe"); |
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264 |
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265 args.push_back("-o"); |
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266 args.push_back(exestr.c_str()); |
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267 |
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268 // set the global gExePath |
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269 gExePath.set(exestr); |
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270 assert(gExePath.isValid()); |
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271 |
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272 // create path to exe |
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273 llvm::sys::Path exedir(gExePath); |
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274 exedir.set(gExePath.getDirname()); |
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275 if (!exedir.exists()) |
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276 { |
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277 exedir.createDirectoryOnDisk(true, &errstr); |
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278 if (!errstr.empty()) |
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279 { |
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280 error("failed to create path to linking output: %s\n%s", exedir.c_str(), errstr.c_str()); |
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281 fatal(); |
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282 } |
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283 } |
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284 |
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285 // additional linker switches |
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286 for (int i = 0; i < global.params.linkswitches->dim; i++) |
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287 { |
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288 char *p = (char *)global.params.linkswitches->data[i]; |
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289 args.push_back(p); |
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290 } |
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291 |
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292 // user libs |
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293 for (int i = 0; i < global.params.libfiles->dim; i++) |
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294 { |
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295 char *p = (char *)global.params.libfiles->data[i]; |
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296 args.push_back(p); |
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297 } |
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298 |
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299 // default libs |
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300 switch(global.params.os) { |
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Solaris compatibility and proc map parsing #183, thanks BlueZeniX!
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301 case OSLinux: |
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302 case OSMacOSX: |
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303 args.push_back("-ldl"); |
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304 // fallthrough |
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305 case OSFreeBSD: |
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306 args.push_back("-lpthread"); |
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307 args.push_back("-lm"); |
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308 break; |
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309 |
900
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310 case OSSolaris: |
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311 args.push_back("-lm"); |
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312 args.push_back("-lumem"); |
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313 // solaris TODO |
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314 break; |
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315 |
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316 case OSWindows: |
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317 // FIXME: I'd assume kernel32 etc |
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318 break; |
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319 } |
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320 |
902
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321 //FIXME: enforce 64 bit |
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322 if (global.params.is64bit) |
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323 args.push_back("-m64"); |
1026
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324 else |
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325 // Assume 32-bit? |
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326 args.push_back("-m32"); |
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327 |
677
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328 // print link command? |
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Use LLVM-style command line (instead of DMD-style)
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329 if (!quiet || global.params.verbose) |
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330 { |
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331 // Print it |
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332 for (int i = 0; i < args.size(); i++) |
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333 printf("%s ", args[i]); |
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334 printf("\n"); |
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335 fflush(stdout); |
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336 } |
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337 |
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338 Logger::println("Linking with: "); |
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339 std::vector<const char*>::const_iterator I = args.begin(), E = args.end(); |
994
18ad5601dff7
Use LLVM OStream wrapper instead of <iostream> in the logger.
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340 llvm::OStream logstr = Logger::cout(); |
677
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341 for (; I != E; ++I) |
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342 if (*I) |
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343 logstr << "'" << *I << "'" << " "; |
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344 logstr << "\n" << std::flush; |
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345 |
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346 |
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347 // terminate args list |
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348 args.push_back(NULL); |
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349 |
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350 // try to call linker!!! |
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351 if (int status = llvm::sys::Program::ExecuteAndWait(gcc, &args[0], NULL, NULL, 0,0, &errstr)) |
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352 { |
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353 error("linking failed:\nstatus: %d", status); |
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354 if (!errstr.empty()) |
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355 error("message: %s", errstr.c_str()); |
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356 fatal(); |
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357 } |
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358 } |
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359 |
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360 ////////////////////////////////////////////////////////////////////////////// |
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361 |
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362 void deleteExecutable() |
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363 { |
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364 if (!gExePath.isEmpty()) |
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365 { |
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366 assert(gExePath.isValid()); |
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367 assert(!gExePath.isDirectory()); |
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368 gExePath.eraseFromDisk(false); |
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369 } |
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370 } |
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371 |
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372 ////////////////////////////////////////////////////////////////////////////// |
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373 |
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374 int runExectuable() |
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375 { |
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376 assert(!gExePath.isEmpty()); |
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377 assert(gExePath.isValid()); |
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378 |
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379 // build arguments |
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380 std::vector<const char*> args; |
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381 // args[0] should be the name of the executable |
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382 args.push_back(gExePath.toString().c_str()); |
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383 // Skip first argument to -run; it's a D source file. |
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384 for (size_t i = 1, length = opts::runargs.size(); i < length; i++) |
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385 { |
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386 args.push_back(opts::runargs[i].c_str()); |
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387 } |
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388 // terminate args list |
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389 args.push_back(NULL); |
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390 |
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391 // try to call linker!!! |
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392 std::string errstr; |
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393 int status = llvm::sys::Program::ExecuteAndWait(gExePath, &args[0], NULL, NULL, 0,0, &errstr); |
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394 if (!errstr.empty()) |
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395 { |
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396 error("failed to execute program"); |
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397 if (!errstr.empty()) |
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398 error("error message: %s", errstr.c_str()); |
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399 fatal(); |
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400 } |
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401 return status; |
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402 } |