Mercurial > projects > ldc
annotate gen/linker.cpp @ 918:a4fcc13da3cd
Changed templates and typeinfo to use linkonce linkage instead of weak linkage, this should fix inlining problems, fixing bug #197 . If problems show up, it's easy to change it back by changing the define in mars.h . I'm 95% sure this is safe, given how we handle templates.
author | Tomas Lindquist Olsen <tomas.l.olsen@gmail.com> |
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date | Mon, 02 Feb 2009 01:44:51 +0100 |
parents | 893d72ab95d0 |
children | a8cb25d478c4 |
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 #if _WIN32 |
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5 #include "llvm/Support/SystemUtils.h" |
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6 #endif |
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7 |
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8 #include "root.h" |
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9 #include "mars.h" |
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10 #include "module.h" |
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11 |
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12 #define NO_COUT_LOGGER |
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13 #include "gen/logger.h" |
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14 |
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15 ////////////////////////////////////////////////////////////////////////////// |
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16 |
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17 typedef std::vector<llvm::Module*> Module_vector; |
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18 |
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19 void linkModules(llvm::Module* dst, const Module_vector& MV) |
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20 { |
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21 if (MV.empty()) |
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22 return; |
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23 |
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24 llvm::Linker linker("ldc", dst); |
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25 |
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26 std::string err; |
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27 for (Module_vector::const_iterator i=MV.begin(); i!=MV.end(); ++i) |
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28 { |
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29 if (!linker.LinkInModule(*i, &err)) |
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30 { |
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31 error("%s", err.c_str()); |
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32 fatal(); |
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33 } |
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34 } |
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35 } |
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36 |
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37 ////////////////////////////////////////////////////////////////////////////// |
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38 |
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39 static llvm::sys::Path gExePath; |
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40 |
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41 int linkExecutable(const char* argv0) |
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42 { |
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43 Logger::println("*** Linking executable ***"); |
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44 |
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45 // error string |
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46 std::string errstr; |
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47 |
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48 // find the llvm-ld program |
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49 llvm::sys::Path ldpath = llvm::sys::Program::FindProgramByName("llvm-ld"); |
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50 if (ldpath.isEmpty()) |
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51 { |
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52 ldpath.set("llvm-ld"); |
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53 } |
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54 |
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55 // build arguments |
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56 std::vector<const char*> args; |
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57 |
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58 // first the program name ?? |
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59 args.push_back("llvm-ld"); |
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60 |
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61 // output filename |
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62 std::string exestr; |
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63 if (global.params.exefile) |
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64 { // explicit |
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65 exestr = global.params.exefile; |
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66 } |
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67 else |
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68 { // inferred |
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69 // try root module name |
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70 if (Module::rootModule) |
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71 exestr = Module::rootModule->toChars(); |
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72 else |
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73 exestr = "a.out"; |
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74 } |
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75 if (global.params.os == OSWindows && !(exestr.substr(exestr.length()-4) == ".exe")) |
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76 exestr.append(".exe"); |
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77 |
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78 std::string outopt = "-o=" + exestr; |
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79 args.push_back(outopt.c_str()); |
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80 |
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81 // set the global gExePath |
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82 gExePath.set(exestr); |
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83 assert(gExePath.isValid()); |
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84 |
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85 // create path to exe |
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86 llvm::sys::Path exedir(gExePath); |
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87 exedir.set(gExePath.getDirname()); |
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88 if (!exedir.exists()) |
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89 { |
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90 exedir.createDirectoryOnDisk(true, &errstr); |
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91 if (!errstr.empty()) |
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92 { |
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93 error("failed to create path to linking output: %s\n%s", exedir.c_str(), errstr.c_str()); |
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94 fatal(); |
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95 } |
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96 } |
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97 |
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98 // strip debug info |
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99 if (!global.params.symdebug) |
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100 args.push_back("-strip-debug"); |
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101 |
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102 // optimization level |
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103 if (!global.params.optimize) |
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104 args.push_back("-disable-opt"); |
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105 else |
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106 { |
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107 const char* s = 0; |
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108 switch(global.params.optimizeLevel) |
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109 { |
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110 case 0: |
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111 args.push_back("-disable-opt"); |
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112 args.push_back("-globaldce"); |
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113 break; |
276
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114 case 1: |
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115 args.push_back("-disable-opt"); |
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116 args.push_back("-globaldce"); |
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117 args.push_back("-mem2reg"); |
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118 case 2: |
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119 case 3: |
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120 case 4: |
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121 case 5: |
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122 // use default optimization |
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123 break; |
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124 default: |
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125 assert(0); |
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126 } |
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127 } |
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128 |
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129 // inlining |
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130 if (!(global.params.useInline || global.params.llvmInline)) |
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131 { |
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132 args.push_back("-disable-inlining"); |
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133 } |
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134 |
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135 // additional linker switches |
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136 for (int i = 0; i < global.params.linkswitches->dim; i++) |
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137 { |
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138 char *p = (char *)global.params.linkswitches->data[i]; |
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139 args.push_back(p); |
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140 } |
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141 |
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142 // native please |
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143 args.push_back("-native"); |
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144 |
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145 |
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146 // user libs |
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147 for (int i = 0; i < global.params.libfiles->dim; i++) |
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148 { |
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149 char *p = (char *)global.params.libfiles->data[i]; |
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150 args.push_back(p); |
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151 } |
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152 |
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153 // default libs |
637
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154 switch(global.params.os) { |
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155 case OSLinux: |
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156 case OSMacOSX: |
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157 args.push_back("-ldl"); |
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158 case OSFreeBSD: |
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159 args.push_back("-lpthread"); |
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160 args.push_back("-lm"); |
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161 break; |
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162 |
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163 case OSWindows: |
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164 // FIXME: I'd assume kernel32 etc |
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165 break; |
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166 } |
276
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167 |
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168 // object files |
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169 for (int i = 0; i < global.params.objfiles->dim; i++) |
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170 { |
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171 char *p = (char *)global.params.objfiles->data[i]; |
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172 args.push_back(p); |
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173 } |
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174 |
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175 // print link command? |
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176 if (!global.params.quiet || global.params.verbose) |
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177 { |
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178 // Print it |
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179 for (int i = 0; i < args.size(); i++) |
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180 printf("%s ", args[i]); |
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181 printf("\n"); |
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182 fflush(stdout); |
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183 } |
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184 |
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185 // terminate args list |
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186 args.push_back(NULL); |
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187 |
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188 // try to call linker!!! |
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189 if (int status = llvm::sys::Program::ExecuteAndWait(ldpath, &args[0], NULL, NULL, 0,0, &errstr)) |
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190 { |
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191 error("linking failed:\nstatus: %d", status); |
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192 if (!errstr.empty()) |
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193 error("message: %s", errstr.c_str()); |
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194 fatal(); |
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195 } |
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196 } |
277
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197 |
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198 ////////////////////////////////////////////////////////////////////////////// |
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199 |
677
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200 int linkObjToExecutable(const char* argv0) |
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201 { |
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202 Logger::println("*** Linking executable ***"); |
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203 |
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204 // error string |
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205 std::string errstr; |
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206 |
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207 const char *cc; |
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208 #if !_WIN32 |
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209 cc = getenv("CC"); |
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210 if (!cc) |
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211 #endif |
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212 cc = "gcc"; |
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213 |
677
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214 // find gcc for linking |
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215 llvm::sys::Path gcc = llvm::sys::Program::FindProgramByName(cc); |
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216 if (gcc.isEmpty()) |
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217 { |
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218 gcc.set(cc); |
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219 } |
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220 |
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221 // build arguments |
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222 std::vector<const char*> args; |
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223 |
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224 // first the program name ?? |
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225 args.push_back(cc); |
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226 |
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227 // object files |
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228 for (int i = 0; i < global.params.objfiles->dim; i++) |
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229 { |
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230 char *p = (char *)global.params.objfiles->data[i]; |
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231 args.push_back(p); |
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232 } |
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233 |
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234 // output filename |
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235 std::string exestr; |
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236 if (global.params.exefile) |
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237 { // explicit |
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238 exestr = global.params.exefile; |
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239 } |
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240 else |
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241 { // inferred |
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242 // try root module name |
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243 if (Module::rootModule) |
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244 exestr = Module::rootModule->toChars(); |
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Guess exe name from first object name if none specified.
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245 else if (global.params.objfiles->dim) |
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246 exestr = FileName::removeExt((char*)global.params.objfiles->data[0]); |
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247 else |
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248 exestr = "a.out"; |
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249 } |
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250 if (global.params.os == OSWindows && !(exestr.rfind(".exe") == exestr.length()-4)) |
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251 exestr.append(".exe"); |
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252 |
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253 args.push_back("-o"); |
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254 args.push_back(exestr.c_str()); |
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255 |
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256 // set the global gExePath |
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257 gExePath.set(exestr); |
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258 assert(gExePath.isValid()); |
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259 |
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260 // create path to exe |
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261 llvm::sys::Path exedir(gExePath); |
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262 exedir.set(gExePath.getDirname()); |
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263 if (!exedir.exists()) |
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264 { |
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265 exedir.createDirectoryOnDisk(true, &errstr); |
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266 if (!errstr.empty()) |
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267 { |
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268 error("failed to create path to linking output: %s\n%s", exedir.c_str(), errstr.c_str()); |
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269 fatal(); |
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270 } |
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271 } |
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272 |
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273 // additional linker switches |
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274 for (int i = 0; i < global.params.linkswitches->dim; i++) |
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275 { |
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276 char *p = (char *)global.params.linkswitches->data[i]; |
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277 args.push_back(p); |
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278 } |
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279 |
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280 // user libs |
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281 for (int i = 0; i < global.params.libfiles->dim; i++) |
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282 { |
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283 char *p = (char *)global.params.libfiles->data[i]; |
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284 args.push_back(p); |
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285 } |
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286 |
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287 // default libs |
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288 switch(global.params.os) { |
900
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Solaris compatibility and proc map parsing #183, thanks BlueZeniX!
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289 case OSLinux: |
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290 case OSMacOSX: |
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291 args.push_back("-ldl"); |
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292 // fallthrough |
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293 case OSFreeBSD: |
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294 args.push_back("-lpthread"); |
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295 args.push_back("-lm"); |
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296 break; |
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297 |
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298 case OSSolaris: |
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299 args.push_back("-lm"); |
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300 args.push_back("-lumem"); |
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301 // solaris TODO |
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302 break; |
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303 |
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304 case OSWindows: |
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305 // FIXME: I'd assume kernel32 etc |
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306 break; |
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307 } |
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308 |
902
893d72ab95d0
Add -m64 switch to gcc calls on 64-bit platforms.
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309 //FIXME: enforce 64 bit |
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310 if (global.params.is64bit) |
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311 args.push_back("-m64"); |
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312 |
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313 // print link command? |
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314 if (!global.params.quiet || global.params.verbose) |
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315 { |
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316 // Print it |
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317 for (int i = 0; i < args.size(); i++) |
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318 printf("%s ", args[i]); |
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319 printf("\n"); |
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320 fflush(stdout); |
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321 } |
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322 |
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323 Logger::println("Linking with: "); |
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324 std::vector<const char*>::const_iterator I = args.begin(), E = args.end(); |
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325 std::ostream& logstr = Logger::cout(); |
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326 for (; I != E; ++I) |
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327 if (*I) |
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328 logstr << "'" << *I << "'" << " "; |
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329 logstr << "\n" << std::flush; |
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330 |
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331 |
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332 // terminate args list |
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333 args.push_back(NULL); |
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334 |
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335 // try to call linker!!! |
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336 if (int status = llvm::sys::Program::ExecuteAndWait(gcc, &args[0], NULL, NULL, 0,0, &errstr)) |
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337 { |
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338 error("linking failed:\nstatus: %d", status); |
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339 if (!errstr.empty()) |
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340 error("message: %s", errstr.c_str()); |
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341 fatal(); |
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342 } |
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343 } |
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344 |
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345 ////////////////////////////////////////////////////////////////////////////// |
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346 |
277
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[svn r298] Eliminated the dmd/link.c source file entirely in favor of a llvm::sys based approach to the same functionality.
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347 void deleteExecutable() |
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348 { |
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349 if (!gExePath.isEmpty()) |
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[svn r298] Eliminated the dmd/link.c source file entirely in favor of a llvm::sys based approach to the same functionality.
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350 { |
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351 assert(gExePath.isValid()); |
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352 assert(!gExePath.isDirectory()); |
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353 gExePath.eraseFromDisk(false); |
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354 } |
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355 } |
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356 |
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357 ////////////////////////////////////////////////////////////////////////////// |
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358 |
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359 int runExectuable() |
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360 { |
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361 assert(!gExePath.isEmpty()); |
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362 assert(gExePath.isValid()); |
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363 |
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364 // build arguments |
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365 std::vector<const char*> args; |
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366 for (size_t i = 0; i < global.params.runargs_length; i++) |
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367 { |
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368 char *a = global.params.runargs[i]; |
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369 args.push_back(a); |
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370 } |
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371 // terminate args list |
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372 args.push_back(NULL); |
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373 |
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374 // try to call linker!!! |
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375 std::string errstr; |
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376 int status = llvm::sys::Program::ExecuteAndWait(gExePath, &args[0], NULL, NULL, 0,0, &errstr); |
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377 if (!errstr.empty()) |
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378 { |
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379 error("failed to execute program"); |
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380 if (!errstr.empty()) |
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381 error("error message: %s", errstr.c_str()); |
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382 fatal(); |
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383 } |
278
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384 return status; |
277
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385 } |