| 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 : Fri Jan 20 14:38:45 2017
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| 13 | // Update Count : 155
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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 the correct set of flags based on the type of compile this is
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| 284 |
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| 285 | args[nargs] = ( *new string( string("-D__CFA_MAJOR__=") + Major ) ).c_str();
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| 286 | nargs += 1;
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| 287 | args[nargs] = ( *new string( string("-D__CFA_MINOR__=") + Minor ) ).c_str();
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| 288 | nargs += 1;
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| 289 | args[nargs] = ( *new string( string("-D__CFA_PATCH__=") + Patch ) ).c_str();
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| 290 | nargs += 1;
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| 291 | args[nargs] = "-D__CFA__";
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| 292 | nargs += 1;
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| 293 | args[nargs] = "-D__CFORALL__";
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| 294 | nargs += 1;
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| 295 | args[nargs] = "-D__cforall";
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| 296 | nargs += 1;
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| 297 |
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| 298 | if ( cpp_flag ) {
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| 299 | args[nargs] = "-D__CPP__";
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| 300 | nargs += 1;
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| 301 | } // if
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| 302 |
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| 303 | if ( CFA_flag ) {
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| 304 | args[nargs] = "-D__CFA_PREPROCESS_";
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| 305 | nargs += 1;
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| 306 | } // if
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| 307 |
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| 308 | if ( debug ) {
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| 309 | heading += " (debug)";
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| 310 | args[nargs] = "-D__CFA_DEBUG__";
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| 311 | nargs += 1;
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| 312 | } else {
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| 313 | heading += " (no debug)";
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| 314 | } // if
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| 315 |
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| 316 | if ( Bprefix.length() == 0 ) {
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| 317 | Bprefix = installlibdir;
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| 318 | args[nargs] = ( *new string( string("-D__GCC_BPREFIX__=") + Bprefix ) ).c_str();
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| 319 | nargs += 1;
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| 320 | } // if
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| 321 |
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| 322 | // execute the compilation command
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| 323 |
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| 324 | args[0] = compiler_path.c_str(); // set compiler command for exec
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| 325 | // find actual name of the compiler independent of the path to it
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| 326 | int p = compiler_path.find_last_of( '/' ); // scan r -> l for first '/'
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| 327 | if ( p == -1 ) {
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| 328 | compiler_name = compiler_path;
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| 329 | } else {
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| 330 | compiler_name = *new string( compiler_path.substr( p + 1 ) );
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| 331 | } // if
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| 332 |
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| 333 | if ( prefix( compiler_name, "gcc" ) ) { // allow suffix on gcc name
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| 334 | args[nargs] = "-no-integrated-cpp";
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| 335 | nargs += 1;
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| 336 | args[nargs] = "-Wno-deprecated";
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| 337 | nargs += 1;
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| 338 | if ( ! std_flag ) { // default c99, if none specified
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| 339 | args[nargs] = "-std=gnu99";
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| 340 | nargs += 1;
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| 341 | } // if
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| 342 | args[nargs] = "-fgnu89-inline";
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| 343 | nargs += 1;
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| 344 | args[nargs] = ( *new string( string("-B") + Bprefix + "/" ) ).c_str();
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| 345 | nargs += 1;
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| 346 | args[nargs] = "-lm";
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| 347 | nargs += 1;
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| 348 | } else {
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| 349 | cerr << argv[0] << " error, compiler \"" << compiler_name << "\" unsupported." << endl;
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| 350 | exit( EXIT_FAILURE );
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| 351 | } // if
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| 352 |
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| 353 | for ( int i = 0; i < nlibs; i += 1 ) { // copy non-user libraries after all user libraries
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| 354 | args[nargs] = libs[i];
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| 355 | nargs += 1;
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| 356 | } // for
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| 357 |
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| 358 | args[nargs] = NULL; // terminate with NULL
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| 359 |
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| 360 | #ifdef __DEBUG_H__
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| 361 | cerr << "nargs: " << nargs << endl;
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| 362 | cerr << "args:" << endl;
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| 363 | for ( int i = 0; args[i] != NULL; i += 1 ) {
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| 364 | cerr << " \"" << args[i] << "\"" << endl;
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| 365 | } // for
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| 366 | #endif // __DEBUG_H__
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| 367 |
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| 368 | if ( ! quiet ) {
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| 369 | cerr << "CFA " << "Version " << Version << heading << endl;
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| 370 |
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| 371 | if ( help ) {
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| 372 | cerr <<
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| 373 | "-debug\t\t\t: use cfa runtime with debug checking" << endl <<
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| 374 | "-help\t\t\t: print this help message" << endl <<
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| 375 | "-quiet\t\t\t: print no messages from the cfa command" << endl <<
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| 376 | "-CFA\t\t\t: run the cpp preprocessor and the cfa-cpp translator" << endl <<
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| 377 | "-XCFA -cfa-cpp-flag\t: pass next flag as-is to the cfa-cpp translator" << endl <<
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| 378 | "...\t\t\t: any other " << compiler_name << " flags" << endl;
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| 379 | } // if
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| 380 | } // if
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| 381 |
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| 382 | if ( verbose ) {
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| 383 | if ( argc == 2 ) exit( EXIT_SUCCESS ); // if only the -v flag is specified, do not invoke gcc
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| 384 |
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| 385 | for ( int i = 0; args[i] != NULL; i += 1 ) {
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| 386 | cerr << args[i] << " ";
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| 387 | } // for
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| 388 | cerr << endl;
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| 389 | } // if
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| 390 |
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| 391 | if ( ! nonoptarg ) {
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| 392 | cerr << argv[0] << " error, no input files" << endl;
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| 393 | exit( EXIT_FAILURE );
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| 394 | } // if
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| 395 |
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| 396 | // execute the command and return the result
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| 397 |
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| 398 | execvp( args[0], (char *const *)args ); // should not return
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| 399 | perror( "CFA Translator error: cfa level, execvp" );
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| 400 | exit( EXIT_FAILURE );
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| 401 | } // main
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| 402 |
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| 403 | // Local Variables: //
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| 404 | // tab-width: 4 //
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| 405 | // mode: c++ //
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| 406 | // compile-command: "make install" //
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| 407 | // End: //
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