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annotate gen/linker.cpp @ 291:068cb3c60afb trunk

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[svn r312] Changed assert codegen to insert an unreachable terminator after the call to the assert function, which currently calls abort(). Changed array comparison runtime support to pass the array typeinfo instead of the element typeinfo. This allows a cleaner and faster implementation.
author lindquist
date Sat, 21 Jun 2008 21:16:26 +0200
parents 30941d8ee320
children 0baca2feb554
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #include "gen/llvm.h"
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2 #include "llvm/Linker.h"
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3 #include "llvm/System/Program.h"
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4
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5 #include "root.h"
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6 #include "mars.h"
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7 #include "module.h"
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8
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9 #define NO_COUT_LOGGER
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10 #include "gen/logger.h"
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11
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12 //////////////////////////////////////////////////////////////////////////////
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13
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14 typedef std::vector<llvm::Module*> Module_vector;
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15
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16 void linkModules(llvm::Module* dst, const Module_vector& MV)
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17 {
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18 if (MV.empty())
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19 return;
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20
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21 llvm::Linker linker("llvmdc", dst);
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22
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23 std::string err;
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24 for (Module_vector::const_iterator i=MV.begin(); i!=MV.end(); ++i)
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25 {
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26 if (!linker.LinkInModule(*i, &err))
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27 {
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28 error("%s", err.c_str());
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29 fatal();
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30 }
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31 }
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32 }
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33
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34 //////////////////////////////////////////////////////////////////////////////
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35
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36 static llvm::sys::Path gExePath;
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37
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38 int linkExecutable()
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39 {
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40 Logger::println("*** Linking executable ***");
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41
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42 // error string
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43 std::string errstr;
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44
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45 // find the llvm-ld program
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46 llvm::sys::Path ldpath = llvm::sys::Program::FindProgramByName("llvm-ld");
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47 if (ldpath.isEmpty())
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48 {
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49 error("linker program not found");
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50 fatal();
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51 }
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52
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53 // build arguments
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54 std::vector<const char*> args;
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55
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56 // first the program name ??
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57 args.push_back("llvm-ld");
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58
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59 // output filename
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60 std::string exestr;
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61 if (global.params.exefile)
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62 { // explicit
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63 exestr = global.params.exefile;
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64 }
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65 else
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66 { // inferred
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67 // try root module name
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68 if (Module::rootModule)
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69 exestr = Module::rootModule->toChars();
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70 else
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71 exestr = "a.out";
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72 }
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73 if (global.params.isWindows)
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74 exestr.append(".exe");
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75
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76 std::string outopt = "-o=" + exestr;
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77 args.push_back(outopt.c_str());
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78
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79 // set the global gExePath
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80 gExePath.set(exestr);
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81 assert(gExePath.isValid());
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82
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83 // create path to exe
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84 llvm::sys::Path exedir(gExePath);
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85 exedir.set(gExePath.getDirname());
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86 exedir.createDirectoryOnDisk(true, &errstr);
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87 if (!errstr.empty())
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88 {
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89 error("failed to create path to linking output\n%s", errstr.c_str());
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90 fatal();
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91 }
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92
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93 // strip debug info
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94 if (!global.params.symdebug)
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95 args.push_back("-strip-debug");
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96
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97 // optimization level
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98 if (!global.params.optimize)
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99 args.push_back("-disable-opt");
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100 else
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101 {
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102 const char* s = 0;
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103 switch(global.params.optimizeLevel)
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104 {
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105 case 0:
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106 s = "-O0"; break;
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107 case 1:
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108 s = "-O1"; break;
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109 case 2:
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110 s = "-O2"; break;
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111 case 3:
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112 s = "-O3"; break;
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113 case 4:
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114 s = "-O4"; break;
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115 case 5:
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116 s = "-O5"; break;
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117 default:
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118 assert(0);
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119 }
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120 args.push_back(s);
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121 }
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122
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123 // inlining
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124 if (!(global.params.useInline || global.params.llvmInline))
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125 {
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126 args.push_back("-disable-inlining");
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127 }
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128
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129 // additional linker switches
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130 for (int i = 0; i < global.params.linkswitches->dim; i++)
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131 {
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132 char *p = (char *)global.params.linkswitches->data[i];
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133 args.push_back(p);
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134 }
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135
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136 // native please
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137 args.push_back("-native");
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138
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139
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140 // user libs
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141 for (int i = 0; i < global.params.libfiles->dim; i++)
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142 {
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143 char *p = (char *)global.params.libfiles->data[i];
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144 args.push_back(p);
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145 }
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146
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147 // default libs
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148 args.push_back("-ltango-base-c-llvmdc");
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149 args.push_back("-lpthread");
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150 args.push_back("-ldl");
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151 args.push_back("-lm");
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152
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153 // object files
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154 for (int i = 0; i < global.params.objfiles->dim; i++)
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155 {
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156 char *p = (char *)global.params.objfiles->data[i];
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157 args.push_back(p);
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158 }
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159
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160 // runtime library
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161 // must be linked in last to null terminate the moduleinfo appending list
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162 std::string runtime_path(global.params.runtimePath);
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163 if (*runtime_path.rbegin() != '/')
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164 runtime_path.append("/");
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165 runtime_path.append("libtango-base-llvmdc.a");
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166 args.push_back(runtime_path.c_str());
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167
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168 // print link command?
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169 if (!global.params.quiet || global.params.verbose)
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170 {
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171 // Print it
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172 for (int i = 0; i < args.size(); i++)
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173 printf("%s ", args[i]);
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174 printf("\n");
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175 fflush(stdout);
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176 }
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177
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178 // terminate args list
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179 args.push_back(NULL);
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180
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181 // try to call linker!!!
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182 if (int status = llvm::sys::Program::ExecuteAndWait(ldpath, &args[0], NULL, NULL, 0,0, &errstr))
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183 {
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184 error("linking failed:\nstatus: %d", status);
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185 if (!errstr.empty())
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186 error("message: %s", errstr.c_str());
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187 fatal();
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188 }
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189 }
277
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190
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191 //////////////////////////////////////////////////////////////////////////////
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192
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193 void deleteExecutable()
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194 {
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195 if (!gExePath.isEmpty())
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196 {
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197 assert(gExePath.isValid());
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198 assert(!gExePath.isDirectory());
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199 gExePath.eraseFromDisk(false);
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200 }
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201 }
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202
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203 //////////////////////////////////////////////////////////////////////////////
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204
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205 int runExectuable()
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206 {
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207 assert(!gExePath.isEmpty());
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208 assert(gExePath.isValid());
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209
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210 // build arguments
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211 std::vector<const char*> args;
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212 for (size_t i = 0; i < global.params.runargs_length; i++)
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213 {
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214 char *a = global.params.runargs[i];
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215 args.push_back(a);
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216 }
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217 // terminate args list
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218 args.push_back(NULL);
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219
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220 // try to call linker!!!
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221 std::string errstr;
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222 int status = llvm::sys::Program::ExecuteAndWait(gExePath, &args[0], NULL, NULL, 0,0, &errstr);
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223 if (!errstr.empty())
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224 {
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225 error("failed to execute program");
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226 if (!errstr.empty())
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227 error("error message: %s", errstr.c_str());
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228 fatal();
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229 }
278
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230 return status;
277
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231 }