1 | // |
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2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo |
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3 | // |
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4 | // The contents of this file are covered under the licence agreement in the |
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5 | // file "LICENCE" distributed with Cforall. |
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6 | // |
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7 | // cfa.cc -- |
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8 | // |
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9 | // Author : Peter A. Buhr |
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10 | // Created On : Tue Aug 20 13:44:49 2002 |
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11 | // Last Modified By : Peter A. Buhr |
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12 | // Last Modified On : Tue Oct 31 11:40:44 2017 |
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13 | // Update Count : 160 |
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14 | // |
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15 | |
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16 | #include <iostream> |
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17 | #include <cstdio> // perror |
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18 | #include <cstdlib> // putenv, exit |
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19 | #include <unistd.h> // execvp |
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20 | #include <string> // STL version |
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21 | |
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22 | #include "config.h" // configure info |
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23 | |
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24 | using std::cerr; |
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25 | using std::endl; |
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26 | using std::string; |
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27 | using std::to_string; |
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28 | |
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29 | |
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30 | //#define __DEBUG_H__ |
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31 | |
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32 | |
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33 | bool prefix( string arg, string pre ) { |
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34 | return arg.substr( 0, pre.size() ) == pre; |
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35 | } // prefix |
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36 | |
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37 | |
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38 | void shuffle( const char *args[], int S, int E, int N ) { |
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39 | // S & E index 1 passed the end so adjust with -1 |
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40 | #ifdef __DEBUG_H__ |
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41 | cerr << "shuffle:" << S << " " << E << " " << N << endl; |
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42 | #endif // __DEBUG_H__ |
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43 | for ( int j = E-1 + N; j > S-1 + N; j -=1 ) { |
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44 | #ifdef __DEBUG_H__ |
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45 | cerr << "\t" << j << " " << j-N << endl; |
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46 | #endif // __DEBUG_H__ |
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47 | args[j] = args[j-N]; |
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48 | } // for |
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49 | } // shuffle |
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50 | |
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51 | |
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52 | #define str(s) #s |
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53 | |
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54 | int main( int argc, char *argv[] ) { |
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55 | string Version( CFA_VERSION_LONG ); // current version number from CONFIG |
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56 | string Major( str( CFA_VERSION_MAJOR ) ), Minor( str( CFA_VERSION_MINOR ) ), Patch( str( CFA_VERSION_PATCH ) ); |
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57 | |
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58 | string installincdir( CFA_INCDIR ); // fixed location of include files |
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59 | string installlibdir( CFA_LIBDIR ); // fixed location of cc1 and cfa-cpp commands |
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60 | |
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61 | string heading; // banner printed at start of cfa compilation |
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62 | string arg; // current command-line argument during command-line parsing |
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63 | string Bprefix; // path where gcc looks for compiler command steps |
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64 | string langstd; // language standard |
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65 | |
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66 | string compiler_path( CFA_BACKEND_CC ); // path/name of C compiler |
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67 | string compiler_name; // name of C compiler |
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68 | |
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69 | bool nonoptarg = false; // indicates non-option argument specified |
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70 | bool link = true; // linking as well as compiling |
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71 | bool verbose = false; // -v flag |
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72 | bool quiet = false; // -quiet flag |
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73 | bool debug = true; // -debug flag |
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74 | bool help = false; // -help flag |
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75 | bool CFA_flag = false; // -CFA flag |
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76 | bool cpp_flag = false; // -E or -M flag, preprocessor only |
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77 | bool std_flag = false; // -std= flag |
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78 | bool noincstd_flag = false; // -no-include-stdhdr= flag |
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79 | bool debugging __attribute(( unused )) = false; // -g flag |
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80 | |
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81 | const char *args[argc + 100]; // cfa command line values, plus some space for additional flags |
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82 | int sargs = 1; // starting location for arguments in args list |
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83 | int nargs = sargs; // number of arguments in args list; 0 => command name |
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84 | |
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85 | const char *libs[argc + 20]; // non-user libraries must come separately, plus some added libraries and flags |
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86 | int nlibs = 0; |
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87 | |
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88 | #ifdef __DEBUG_H__ |
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89 | cerr << "CFA:" << endl; |
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90 | #endif // __DEBUG_H__ |
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91 | |
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92 | // process command-line arguments |
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93 | |
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94 | for ( int i = 1; i < argc; i += 1 ) { |
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95 | #ifdef __DEBUG_H__ |
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96 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl; |
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97 | #endif // __DEBUG_H__ |
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98 | arg = argv[i]; // convert to string value |
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99 | #ifdef __DEBUG_H__ |
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100 | cerr << "arg:\"" << arg << "\"" << endl; |
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101 | #endif // __DEBUG_H__ |
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102 | if ( prefix( arg, "-" ) ) { |
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103 | // pass through arguments |
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104 | |
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105 | if ( arg == "-Xlinker" || arg == "-o" ) { |
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106 | args[nargs] = argv[i]; // pass the argument along |
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107 | nargs += 1; |
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108 | i += 1; |
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109 | if ( i == argc ) continue; // next argument available ? |
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110 | args[nargs] = argv[i]; // pass the argument along |
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111 | nargs += 1; |
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112 | } else if ( arg == "-XCFA" ) { // CFA pass through |
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113 | i += 1; |
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114 | args[nargs] = ( *new string( string("-D__CFA_FLAG__=") + argv[i] ) ).c_str(); |
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115 | nargs += 1; |
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116 | |
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117 | // CFA specific arguments |
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118 | |
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119 | } else if ( arg == "-CFA" ) { |
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120 | CFA_flag = true; // strip the -CFA flag |
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121 | link = false; |
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122 | args[nargs] = "-E"; // replace the argument with -E |
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123 | nargs += 1; |
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124 | } else if ( arg == "-debug" ) { |
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125 | debug = true; // strip the debug flag |
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126 | } else if ( arg == "-nodebug" ) { |
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127 | debug = false; // strip the nodebug flag |
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128 | } else if ( arg == "-quiet" ) { |
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129 | quiet = true; // strip the quiet flag |
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130 | } else if ( arg == "-noquiet" ) { |
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131 | quiet = false; // strip the noquiet flag |
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132 | } else if ( arg == "-help" ) { |
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133 | help = true; // strip the help flag |
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134 | } else if ( arg == "-nohelp" ) { |
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135 | help = false; // strip the nohelp flag |
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136 | } else if ( arg == "-no-include-stdhdr" ) { |
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137 | noincstd_flag = true; // strip the no-include-stdhdr flag |
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138 | } else if ( arg == "-compiler" ) { |
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139 | // use the user specified compiler |
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140 | i += 1; |
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141 | if ( i == argc ) continue; // next argument available ? |
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142 | compiler_path = argv[i]; |
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143 | if ( putenv( (char *)( *new string( string( "__U_COMPILER__=" ) + argv[i]) ).c_str() ) != 0 ) { |
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144 | cerr << argv[0] << " error, cannot set environment variable." << endl; |
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145 | exit( EXIT_FAILURE ); |
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146 | } // if |
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147 | |
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148 | // C specific arguments |
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149 | |
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150 | } else if ( arg == "-v" ) { |
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151 | verbose = true; // verbosity required |
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152 | args[nargs] = argv[i]; // pass the argument along |
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153 | nargs += 1; |
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154 | } else if ( arg == "-g" ) { |
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155 | debugging = true; // symbolic debugging required |
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156 | args[nargs] = argv[i]; // pass the argument along |
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157 | nargs += 1; |
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158 | } else if ( prefix( arg, "-std=" ) ) { |
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159 | std_flag = true; // -std=XX provided |
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160 | args[nargs] = argv[i]; // pass the argument along |
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161 | nargs += 1; |
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162 | } else if ( prefix( arg, "-B" ) ) { |
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163 | Bprefix = arg.substr(2); // strip the -B flag |
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164 | args[nargs] = ( *new string( string("-D__GCC_BPREFIX__=") + Bprefix ) ).c_str(); |
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165 | nargs += 1; |
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166 | } else if ( prefix( arg, "-b" ) ) { |
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167 | if ( arg.length() == 2 ) { // separate argument ? |
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168 | i += 1; |
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169 | if ( i == argc ) continue; // next argument available ? |
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170 | arg += argv[i]; // concatenate argument |
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171 | } // if |
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172 | // later versions of gcc require the -b option to appear at the start of the command line |
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173 | shuffle( args, sargs, nargs, 1 ); // make room at front of argument list |
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174 | args[sargs] = ( *new string( arg ) ).c_str(); // pass the argument along |
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175 | if ( putenv( (char *)( *new string( string( "__GCC_MACHINE__=" ) + arg ) ).c_str() ) != 0 ) { |
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176 | cerr << argv[0] << " error, cannot set environment variable." << endl; |
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177 | exit( EXIT_FAILURE ); |
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178 | } // if |
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179 | sargs += 1; |
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180 | nargs += 1; |
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181 | } else if ( prefix( arg, "-V" ) ) { |
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182 | if ( arg.length() == 2 ) { // separate argument ? |
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183 | i += 1; |
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184 | if ( i == argc ) continue; // next argument available ? |
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185 | arg += argv[i]; // concatenate argument |
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186 | } // if |
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187 | // later versions of gcc require the -V option to appear at the start of the command line |
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188 | shuffle( args, sargs, nargs, 1 ); // make room at front of argument list |
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189 | args[sargs] = ( *new string( arg ) ).c_str(); // pass the argument along |
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190 | if ( putenv( (char *)( *new string( string( "__GCC_VERSION__=" ) + arg ) ).c_str() ) != 0 ) { |
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191 | cerr << argv[0] << " error, cannot set environment variable." << endl; |
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192 | exit( EXIT_FAILURE ); |
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193 | } // if |
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194 | sargs += 1; |
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195 | nargs += 1; |
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196 | } else if ( arg == "-c" || arg == "-S" || arg == "-E" || arg == "-M" || arg == "-MM" ) { |
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197 | args[nargs] = argv[i]; // pass the argument along |
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198 | nargs += 1; |
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199 | if ( arg == "-E" || arg == "-M" || arg == "-MM" ) { |
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200 | cpp_flag = true; // cpp only |
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201 | } // if |
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202 | link = false; // no linkage required |
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203 | } else if ( arg[1] == 'l' ) { |
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204 | // if the user specifies a library, load it after user code |
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205 | libs[nlibs] = argv[i]; |
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206 | nlibs += 1; |
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207 | } else { |
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208 | // concatenate any other arguments |
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209 | args[nargs] = argv[i]; |
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210 | nargs += 1; |
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211 | } // if |
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212 | } else { |
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213 | // concatenate other arguments |
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214 | args[nargs] = argv[i]; |
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215 | nargs += 1; |
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216 | nonoptarg = true; |
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217 | } // if |
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218 | } // for |
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219 | |
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220 | #ifdef __DEBUG_H__ |
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221 | cerr << "args:"; |
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222 | for ( int i = 1; i < nargs; i += 1 ) { |
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223 | cerr << " " << args[i]; |
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224 | } // for |
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225 | cerr << endl; |
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226 | #endif // __DEBUG_H__ |
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227 | |
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228 | if ( cpp_flag && CFA_flag ) { |
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229 | cerr << argv[0] << " error, cannot use -E and -CFA flags together." << endl; |
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230 | exit( EXIT_FAILURE ); |
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231 | } // if |
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232 | |
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233 | // add the CFA include-library paths, which allow direct access to header files without directory qualification |
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234 | args[nargs] = "-I" CFA_INCDIR; |
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235 | nargs += 1; |
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236 | if ( ! noincstd_flag ) { // do not use during build |
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237 | args[nargs] = "-I" CFA_INCDIR "/stdhdr"; |
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238 | nargs += 1; |
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239 | } // if |
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240 | args[nargs] = "-I" CFA_INCDIR "/concurrency"; |
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241 | nargs += 1; |
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242 | args[nargs] = "-I" CFA_INCDIR "/containers"; |
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243 | nargs += 1; |
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244 | |
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245 | #ifdef HAVE_LIBCFA |
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246 | if ( link ) { |
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247 | #if ! defined(HAVE_LIBCFA_RELEASE) |
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248 | if( !debug ) { |
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249 | cerr << "error: Option -nodebug is not available, libcfa was not installed." << endl; |
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250 | exit( EXIT_FAILURE ); |
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251 | } |
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252 | #endif |
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253 | #if ! defined(HAVE_LIBCFA_DEBUG) |
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254 | if( debug ) { |
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255 | cerr << "error: Option -debug is not available, libcfa-d was not installed." << endl; |
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256 | exit( EXIT_FAILURE ); |
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257 | } |
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258 | #endif |
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259 | |
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260 | // include the cfa library in case it's needed |
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261 | args[nargs] = "-L" CFA_LIBDIR; |
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262 | nargs += 1; |
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263 | if( debug ) { |
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264 | args[nargs] = "-lcfa-d"; |
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265 | } else { |
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266 | args[nargs] = "-lcfa"; |
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267 | } |
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268 | nargs += 1; |
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269 | args[nargs] = "-lpthread"; |
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270 | nargs += 1; |
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271 | args[nargs] = "-ldl"; |
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272 | nargs += 1; |
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273 | args[nargs] = "-lrt"; |
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274 | nargs += 1; |
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275 | args[nargs] = "-Xlinker"; |
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276 | nargs += 1; |
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277 | args[nargs] = "--undefined=__lib_debug_write"; |
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278 | nargs += 1; |
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279 | |
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280 | } // if |
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281 | #endif //HAVE_LIBCFA |
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282 | |
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283 | // Add exception flags (unconditionally) |
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284 | args[nargs] = "-fexceptions"; |
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285 | nargs += 1; |
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286 | |
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287 | // add the correct set of flags based on the type of compile this is |
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288 | |
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289 | args[nargs] = ( *new string( string("-D__CFA_MAJOR__=") + Major ) ).c_str(); |
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290 | nargs += 1; |
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291 | args[nargs] = ( *new string( string("-D__CFA_MINOR__=") + Minor ) ).c_str(); |
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292 | nargs += 1; |
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293 | args[nargs] = ( *new string( string("-D__CFA_PATCH__=") + Patch ) ).c_str(); |
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294 | nargs += 1; |
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295 | args[nargs] = "-D__CFA__"; |
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296 | nargs += 1; |
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297 | args[nargs] = "-D__CFORALL__"; |
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298 | nargs += 1; |
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299 | args[nargs] = "-D__cforall"; |
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300 | nargs += 1; |
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301 | |
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302 | if ( cpp_flag ) { |
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303 | args[nargs] = "-D__CPP__"; |
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304 | nargs += 1; |
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305 | } // if |
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306 | |
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307 | shuffle( args, sargs, nargs, 1 ); // make room at front of argument list |
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308 | nargs += 1; |
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309 | if ( CFA_flag ) { |
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310 | args[sargs] = "-D__CFA_FLAG__=-N"; |
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311 | args[nargs] = "-D__CFA_PREPROCESS_"; |
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312 | nargs += 1; |
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313 | } else { |
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314 | args[sargs] = "-D__CFA_FLAG__=-L"; |
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315 | } // if |
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316 | sargs += 1; |
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317 | |
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318 | if ( debug ) { |
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319 | heading += " (debug)"; |
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320 | args[nargs] = "-D__CFA_DEBUG__"; |
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321 | nargs += 1; |
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322 | } else { |
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323 | heading += " (no debug)"; |
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324 | } // if |
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325 | |
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326 | if ( Bprefix.length() == 0 ) { |
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327 | Bprefix = installlibdir; |
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328 | args[nargs] = ( *new string( string("-D__GCC_BPREFIX__=") + Bprefix ) ).c_str(); |
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329 | nargs += 1; |
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330 | } // if |
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331 | |
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332 | // execute the compilation command |
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333 | |
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334 | args[0] = compiler_path.c_str(); // set compiler command for exec |
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335 | // find actual name of the compiler independent of the path to it |
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336 | int p = compiler_path.find_last_of( '/' ); // scan r -> l for first '/' |
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337 | if ( p == -1 ) { |
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338 | compiler_name = compiler_path; |
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339 | } else { |
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340 | compiler_name = *new string( compiler_path.substr( p + 1 ) ); |
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341 | } // if |
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342 | |
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343 | if ( prefix( compiler_name, "gcc" ) ) { // allow suffix on gcc name |
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344 | args[nargs] = "-no-integrated-cpp"; |
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345 | nargs += 1; |
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346 | args[nargs] = "-Wno-deprecated"; |
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347 | nargs += 1; |
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348 | if ( ! std_flag ) { // default c99, if none specified |
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349 | args[nargs] = "-std=gnu99"; |
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350 | nargs += 1; |
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351 | } // if |
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352 | args[nargs] = "-fgnu89-inline"; |
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353 | nargs += 1; |
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354 | args[nargs] = "-D__int8_t_defined"; // prevent gcc type-size attributes |
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355 | nargs += 1; |
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356 | args[nargs] = ( *new string( string("-B") + Bprefix + "/" ) ).c_str(); |
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357 | nargs += 1; |
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358 | args[nargs] = "-lm"; |
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359 | nargs += 1; |
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360 | } else { |
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361 | cerr << argv[0] << " error, compiler \"" << compiler_name << "\" unsupported." << endl; |
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362 | exit( EXIT_FAILURE ); |
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363 | } // if |
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364 | |
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365 | for ( int i = 0; i < nlibs; i += 1 ) { // copy non-user libraries after all user libraries |
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366 | args[nargs] = libs[i]; |
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367 | nargs += 1; |
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368 | } // for |
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369 | |
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370 | args[nargs] = NULL; // terminate with NULL |
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371 | |
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372 | #ifdef __DEBUG_H__ |
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373 | cerr << "nargs: " << nargs << endl; |
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374 | cerr << "args:" << endl; |
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375 | for ( int i = 0; args[i] != NULL; i += 1 ) { |
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376 | cerr << " \"" << args[i] << "\"" << endl; |
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377 | } // for |
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378 | #endif // __DEBUG_H__ |
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379 | |
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380 | if ( ! quiet ) { |
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381 | cerr << "CFA " << "Version " << Version << heading << endl; |
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382 | |
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383 | if ( help ) { |
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384 | cerr << |
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385 | "-debug\t\t\t: use cfa runtime with debug checking" << endl << |
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386 | "-help\t\t\t: print this help message" << endl << |
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387 | "-quiet\t\t\t: print no messages from the cfa command" << endl << |
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388 | "-CFA\t\t\t: run the cpp preprocessor and the cfa-cpp translator" << endl << |
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389 | "-XCFA -cfa-cpp-flag\t: pass next flag as-is to the cfa-cpp translator" << endl << |
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390 | "...\t\t\t: any other " << compiler_name << " flags" << endl; |
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391 | } // if |
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392 | } // if |
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393 | |
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394 | if ( verbose ) { |
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395 | if ( argc == 2 ) exit( EXIT_SUCCESS ); // if only the -v flag is specified, do not invoke gcc |
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396 | |
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397 | for ( int i = 0; args[i] != NULL; i += 1 ) { |
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398 | cerr << args[i] << " "; |
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399 | } // for |
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400 | cerr << endl; |
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401 | } // if |
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402 | |
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403 | if ( ! nonoptarg ) { |
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404 | cerr << argv[0] << " error, no input files" << endl; |
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405 | exit( EXIT_FAILURE ); |
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406 | } // if |
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407 | |
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408 | // execute the command and return the result |
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409 | |
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410 | execvp( args[0], (char *const *)args ); // should not return |
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411 | perror( "CFA Translator error: cfa level, execvp" ); |
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412 | exit( EXIT_FAILURE ); |
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413 | } // main |
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414 | |
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415 | // Local Variables: // |
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416 | // tab-width: 4 // |
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417 | // mode: c++ // |
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418 | // compile-command: "make install" // |
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419 | // End: // |
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