[b87a5ed] | 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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[51b7345] | 7 | // cc1.cc -- |
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[b87a5ed] | 8 | // |
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| 9 | // Author : Peter A. Buhr |
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[51b7345] | 10 | // Created On : Fri Aug 26 14:23:51 2005 |
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| 11 | // Last Modified By : Peter A. Buhr |
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[68bceeb] | 12 | // Last Modified On : Thu Jul 19 10:46:11 2018 |
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| 13 | // Update Count : 111 |
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[51b7345] | 14 | // |
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| 15 | |
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| 16 | #include <iostream> |
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| 17 | using std::cerr; |
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| 18 | using std::endl; |
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| 19 | #include <string> |
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| 20 | using std::string; |
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[b87a5ed] | 21 | #include <cstdio> // stderr, stdout, perror, fprintf |
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| 22 | #include <cstdlib> // getenv, exit, mkstemp |
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| 23 | #include <unistd.h> // execvp, fork, unlink |
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| 24 | #include <sys/wait.h> // wait |
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[51b7345] | 25 | |
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[b87a5ed] | 26 | #include "config.h" // configure info |
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[51b7345] | 27 | |
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| 28 | |
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| 29 | //#define __DEBUG_H__ |
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| 30 | |
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| 31 | |
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[e24f13a] | 32 | string compiler_name( CFA_BACKEND_CC ); // path/name of C compiler |
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[51b7345] | 33 | |
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[e3215c5] | 34 | string D__GCC_X__( "-D__GCC_X__=" ); |
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[51b7345] | 35 | string D__GCC_BPREFIX__( "-D__GCC_BPREFIX__=" ); |
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[d9a0e76] | 36 | string D__CFA_FLAGPREFIX__( "-D__CFA_FLAG__=" ); |
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[51b7345] | 37 | |
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[bdd516a] | 38 | char tmpname[] = P_tmpdir "/CFAXXXXXX"; |
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| 39 | int tmpfilefd = -1; |
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| 40 | |
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[51b7345] | 41 | |
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| 42 | bool prefix( string arg, string pre ) { |
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[b87a5ed] | 43 | return arg.substr( 0, pre.size() ) == pre; |
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[51b7345] | 44 | } // prefix |
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| 45 | |
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[dffaeac] | 46 | enum { NumSuffixes = 2 }; |
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| 47 | const string suffixes[NumSuffixes] = { "cfa", "hfa", }; |
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| 48 | |
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| 49 | bool suffix( string arg ) { |
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| 50 | //std::cerr << arg << std::endl; |
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| 51 | size_t dot = arg.find_last_of( "." ); |
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| 52 | //std::cerr << dot << " " << (dot != string::npos ? arg.substr( dot + 1 ) : "fred" ) << std::endl; |
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| 53 | if ( dot == string::npos ) return false; |
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| 54 | string sx = arg.substr( dot + 1 ); |
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| 55 | for ( int i = 0; i < NumSuffixes; i += 1 ) { |
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| 56 | if ( sx == suffixes[i] ) return true; |
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| 57 | } // for |
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| 58 | return false; |
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| 59 | } // suffix |
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| 60 | |
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[51b7345] | 61 | |
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| 62 | void checkEnv( const char *args[], int &nargs ) { |
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[b87a5ed] | 63 | char *value; |
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[51b7345] | 64 | |
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[b87a5ed] | 65 | value = getenv( "__COMPILER__" ); |
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| 66 | if ( value != NULL ) { |
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| 67 | compiler_name = value; |
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[dffaeac] | 68 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 69 | cerr << "env arg:\"" << compiler_name << "\"" << endl; |
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[dffaeac] | 70 | #endif // __DEBUG_H__ |
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[b87a5ed] | 71 | } // if |
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[51b7345] | 72 | |
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[b87a5ed] | 73 | value = getenv( "__GCC_MACHINE__" ); |
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| 74 | if ( value != NULL ) { |
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| 75 | args[nargs] = ( *new string( value ) ).c_str(); // pass the argument along |
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[dffaeac] | 76 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 77 | cerr << "env arg:\"" << args[nargs] << "\"" << endl; |
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[dffaeac] | 78 | #endif // __DEBUG_H__ |
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[b87a5ed] | 79 | nargs += 1; |
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| 80 | } // if |
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[51b7345] | 81 | |
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[b87a5ed] | 82 | value = getenv( "__GCC_VERSION__" ); |
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| 83 | if ( value != NULL ) { |
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| 84 | args[nargs] = ( *new string( value ) ).c_str(); // pass the argument along |
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[dffaeac] | 85 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 86 | cerr << "env arg:\"" << args[nargs] << "\"" << endl; |
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[dffaeac] | 87 | #endif // __DEBUG_H__ |
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[b87a5ed] | 88 | nargs += 1; |
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| 89 | } // if |
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[51b7345] | 90 | } // checkEnv |
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| 91 | |
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| 92 | |
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[bdd516a] | 93 | void rmtmpfile() { |
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[b87a5ed] | 94 | if ( unlink( tmpname ) == -1 ) { // remove tmpname |
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| 95 | perror ( "CFA Translator error: cpp failed" ); |
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| 96 | exit( EXIT_FAILURE ); |
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| 97 | } // if |
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| 98 | tmpfilefd = -1; // mark closed |
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[bdd516a] | 99 | } // rmtmpfile |
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| 100 | |
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| 101 | |
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[b3c36f4] | 102 | void sigTermHandler( __attribute__((unused)) int signal ) { |
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[b87a5ed] | 103 | if ( tmpfilefd != -1 ) { // RACE, file created ? |
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| 104 | rmtmpfile(); // remove |
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| 105 | exit( EXIT_FAILURE ); // terminate |
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| 106 | } // if |
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[bdd516a] | 107 | } // sigTermHandler |
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| 108 | |
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| 109 | |
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[51b7345] | 110 | void Stage1( const int argc, const char * const argv[] ) { |
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[b87a5ed] | 111 | int code; |
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| 112 | int i; |
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[51b7345] | 113 | |
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[b87a5ed] | 114 | string arg; |
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| 115 | string bprefix; |
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[51b7345] | 116 | |
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[b87a5ed] | 117 | const char *cpp_in = NULL; |
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| 118 | const char *cpp_out = NULL; |
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[51b7345] | 119 | |
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[b87a5ed] | 120 | bool CFA_flag = false; |
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| 121 | bool cpp_flag = false; |
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| 122 | const char *o_name = NULL; |
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[51b7345] | 123 | |
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[b87a5ed] | 124 | const char *args[argc + 100]; // leave space for 100 additional cpp command line values |
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| 125 | int nargs = 1; // number of arguments in args list; 0 => command name |
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[7b937575] | 126 | const char *cargs[20]; // leave space for 20 additional cfa-cpp command line values |
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| 127 | int ncargs = 1; // 0 => command name |
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[51b7345] | 128 | |
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[b87a5ed] | 129 | signal( SIGINT, sigTermHandler ); |
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| 130 | signal( SIGTERM, sigTermHandler ); |
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[bdd516a] | 131 | |
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[dffaeac] | 132 | #ifdef __DEBUG_H__ |
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[7b937575] | 133 | cerr << "Stage1" << endl; |
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[dffaeac] | 134 | #endif // __DEBUG_H__ |
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[7b937575] | 135 | |
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[b87a5ed] | 136 | // process all the arguments |
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[51b7345] | 137 | |
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[b87a5ed] | 138 | checkEnv( args, nargs ); // arguments passed via environment variables |
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[51b7345] | 139 | |
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[b87a5ed] | 140 | for ( i = 1; i < argc; i += 1 ) { |
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[dffaeac] | 141 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 142 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl; |
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[dffaeac] | 143 | #endif // __DEBUG_H__ |
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[b87a5ed] | 144 | arg = argv[i]; |
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[dffaeac] | 145 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 146 | cerr << "arg:\"" << arg << "\"" << endl; |
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[dffaeac] | 147 | #endif // __DEBUG_H__ |
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[b87a5ed] | 148 | if ( prefix( arg, "-" ) ) { |
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| 149 | // strip g++ flags that are inappropriate or cause duplicates in subsequent passes |
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| 150 | |
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| 151 | if ( arg == "-quiet" ) { |
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| 152 | } else if ( arg == "-imultilib" || arg == "-imultiarch" ) { |
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| 153 | i += 1; // and the argument |
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| 154 | } else if ( prefix( arg, "-A" ) ) { |
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| 155 | } else if ( prefix( arg, "-D__GNU" ) ) { |
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| 156 | //******** |
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| 157 | // GCC 5.6.0 SEPARATED THE -D FROM THE ARGUMENT! |
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| 158 | //******** |
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| 159 | } else if ( arg == "-D" && prefix( argv[i + 1], "__GNU" ) ) { |
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| 160 | i += 1; // and the argument |
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| 161 | |
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| 162 | // strip flags controlling cpp step |
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| 163 | |
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| 164 | } else if ( arg == "-D__CPP__" ) { |
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| 165 | cpp_flag = true; |
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| 166 | } else if ( arg == "-D" && string( argv[i + 1] ) == "__CPP__" ) { |
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| 167 | i += 1; // and the argument |
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| 168 | cpp_flag = true; |
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[4c82a3c] | 169 | } else if ( arg == "-D__CFA_PREPROCESS__" ) { |
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[b87a5ed] | 170 | CFA_flag = true; |
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[4c82a3c] | 171 | } else if ( arg == "-D" && string( argv[i + 1] ) == "__CFA_PREPROCESS__" ) { |
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[b87a5ed] | 172 | i += 1; // and the argument |
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| 173 | CFA_flag = true; |
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| 174 | } else if ( prefix( arg, D__CFA_FLAGPREFIX__ ) ) { |
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[7b937575] | 175 | cargs[ncargs] = ( *new string( arg.substr( D__CFA_FLAGPREFIX__.size() ) ) ).c_str(); |
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| 176 | ncargs += 1; |
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[b87a5ed] | 177 | } else if ( arg == "-D" && prefix( argv[i + 1], D__CFA_FLAGPREFIX__.substr(2) ) ) { |
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[7b937575] | 178 | cargs[ncargs] = ( *new string( string( argv[i + 1] ).substr( D__CFA_FLAGPREFIX__.size() - 2 ) ) ).c_str(); |
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| 179 | ncargs += 1; |
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[b87a5ed] | 180 | i += 1; // and the argument |
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[dffaeac] | 181 | // } else if ( prefix( arg, D__GCC_X__ ) ) { |
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| 182 | // args[nargs] = "-x"; |
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| 183 | // nargs += 1; |
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| 184 | // args[nargs] = ( *new string( arg.substr( D__GCC_X__.size() ) ) ).c_str(); // pass the flag along |
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| 185 | // nargs += 1; |
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| 186 | // } else if ( arg == "-D" && prefix( argv[i + 1], D__GCC_X__.substr(2) ) ) { |
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| 187 | // args[nargs] = "-x"; |
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| 188 | // nargs += 1; |
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| 189 | // args[nargs] = ( *new string( string( argv[i + 1] ).substr( D__GCC_X__.size() - 2 ) ) ).c_str(); // pass the flag along |
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| 190 | // nargs += 1; |
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| 191 | // i += 1; // and the argument |
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[b87a5ed] | 192 | } else if ( prefix( arg, D__GCC_BPREFIX__ ) ) { |
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| 193 | bprefix = arg.substr( D__GCC_BPREFIX__.size() ); |
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| 194 | } else if ( arg == "-D" && prefix( argv[i + 1], D__GCC_BPREFIX__.substr(2) ) ) { |
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| 195 | bprefix = string( argv[i + 1] ).substr( D__GCC_BPREFIX__.size() - 2 ); |
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| 196 | i += 1; // and the argument |
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| 197 | |
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[f8b6d921] | 198 | // all other flags |
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[b87a5ed] | 199 | |
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| 200 | } else if ( arg == "-o" ) { |
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| 201 | i += 1; |
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| 202 | o_name = argv[i]; |
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| 203 | } else { |
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| 204 | args[nargs] = argv[i]; // pass the flag along |
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| 205 | nargs += 1; |
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| 206 | // CPP flags with an argument |
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[f8b6d921] | 207 | if ( arg == "-D" || arg == "-U" || arg == "-I" || arg == "-MF" || arg == "-MT" || arg == "-MQ" || |
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[b87a5ed] | 208 | arg == "-include" || arg == "-imacros" || arg == "-idirafter" || arg == "-iprefix" || |
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| 209 | arg == "-iwithprefix" || arg == "-iwithprefixbefore" || arg == "-isystem" || arg == "-isysroot" ) { |
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| 210 | i += 1; |
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| 211 | args[nargs] = argv[i]; // pass the argument along |
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| 212 | nargs += 1; |
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[dffaeac] | 213 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 214 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl; |
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[dffaeac] | 215 | #endif // __DEBUG_H__ |
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[b87a5ed] | 216 | } else if ( arg == "-MD" || arg == "-MMD" ) { |
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| 217 | args[nargs] = "-MF"; // insert before file |
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| 218 | nargs += 1; |
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| 219 | i += 1; |
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| 220 | args[nargs] = argv[i]; // pass the argument along |
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| 221 | nargs += 1; |
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[dffaeac] | 222 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 223 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl; |
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[dffaeac] | 224 | #endif // __DEBUG_H__ |
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[b87a5ed] | 225 | } // if |
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| 226 | } // if |
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| 227 | } else { // obtain input and possibly output files |
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| 228 | if ( cpp_in == NULL ) { |
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| 229 | cpp_in = argv[i]; |
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[dffaeac] | 230 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 231 | cerr << "cpp_in:\"" << cpp_in << "\"" << endl; |
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[dffaeac] | 232 | #endif // __DEBUG_H__ |
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[b87a5ed] | 233 | } else if ( cpp_out == NULL ) { |
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| 234 | cpp_out = argv[i]; |
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[dffaeac] | 235 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 236 | cerr << "cpp_out:\"" << cpp_out << "\""<< endl; |
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[dffaeac] | 237 | #endif // __DEBUG_H__ |
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[b87a5ed] | 238 | } else { |
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| 239 | cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl; |
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| 240 | exit( EXIT_FAILURE ); |
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| 241 | } // if |
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| 242 | } // if |
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| 243 | } // for |
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| 244 | |
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[dffaeac] | 245 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 246 | cerr << "args:"; |
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| 247 | for ( i = 1; i < nargs; i += 1 ) { |
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| 248 | cerr << " " << args[i]; |
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| 249 | } // for |
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| 250 | if ( cpp_in != NULL ) cerr << " " << cpp_in; |
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| 251 | if ( cpp_out != NULL ) cerr << " " << cpp_out; |
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| 252 | cerr << endl; |
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[dffaeac] | 253 | #endif // __DEBUG_H__ |
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[b87a5ed] | 254 | |
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| 255 | if ( cpp_in == NULL ) { |
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[51b7345] | 256 | cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl; |
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| 257 | exit( EXIT_FAILURE ); |
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| 258 | } // if |
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[b87a5ed] | 259 | |
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| 260 | if ( cpp_flag ) { |
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| 261 | // The -E flag is specified on the cfa command so only run the preprocessor and output is written to standard |
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| 262 | // output or -o. The call to cfa has a -E so it does not have to be added to the argument list. |
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| 263 | |
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| 264 | args[0] = compiler_name.c_str(); |
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| 265 | args[nargs] = cpp_in; |
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| 266 | nargs += 1; |
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| 267 | if ( o_name != NULL ) { // location for output |
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| 268 | args[nargs] = "-o"; |
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| 269 | nargs += 1; |
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| 270 | args[nargs] = o_name; |
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| 271 | nargs += 1; |
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| 272 | } // if |
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| 273 | args[nargs] = NULL; // terminate argument list |
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[51b7345] | 274 | |
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[dffaeac] | 275 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 276 | cerr << "nargs: " << nargs << endl; |
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| 277 | for ( i = 0; args[i] != NULL; i += 1 ) { |
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| 278 | cerr << args[i] << " "; |
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| 279 | } // for |
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| 280 | cerr << endl; |
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[dffaeac] | 281 | #endif // __DEBUG_H__ |
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[51b7345] | 282 | |
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[b87a5ed] | 283 | execvp( args[0], (char *const *)args ); // should not return |
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| 284 | perror( "CFA Translator error: cpp level, execvp" ); |
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| 285 | exit( EXIT_FAILURE ); |
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| 286 | } // if |
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[51b7345] | 287 | |
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[b87a5ed] | 288 | // Create a temporary file to store output of the C preprocessor. |
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[51b7345] | 289 | |
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[b87a5ed] | 290 | tmpfilefd = mkstemp( tmpname ); |
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| 291 | if ( tmpfilefd == -1 ) { |
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| 292 | perror( "CFA Translator error: cpp level, mkstemp" ); |
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| 293 | exit( EXIT_FAILURE ); |
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[51b7345] | 294 | } // if |
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| 295 | |
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[dffaeac] | 296 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 297 | cerr << "tmpname:" << tmpname << " tmpfilefd:" << tmpfilefd << endl; |
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[dffaeac] | 298 | #endif // __DEBUG_H__ |
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[51b7345] | 299 | |
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[b87a5ed] | 300 | // Run the C preprocessor and save the output in tmpfile. |
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[51b7345] | 301 | |
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[b87a5ed] | 302 | if ( fork() == 0 ) { // child process ? |
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| 303 | // -o xxx.ii cannot be used to write the output file from cpp because no output file is created if cpp detects |
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| 304 | // an error (e.g., cannot find include file). Whereas, output is always generated, even when there is an error, |
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| 305 | // when cpp writes to stdout. Hence, stdout is redirected into the temporary file. |
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| 306 | if ( freopen( tmpname, "w", stdout ) == NULL ) { // redirect stdout to tmpname |
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| 307 | perror( "CFA Translator error: cpp level, freopen" ); |
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| 308 | exit( EXIT_FAILURE ); |
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| 309 | } // if |
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[51b7345] | 310 | |
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[b87a5ed] | 311 | args[0] = compiler_name.c_str(); |
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[dffaeac] | 312 | if ( suffix( cpp_in ) ) { |
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| 313 | args[nargs] = "-x"; |
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| 314 | nargs += 1; |
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| 315 | args[nargs] = "c"; |
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| 316 | nargs += 1; |
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| 317 | } // if |
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[b87a5ed] | 318 | args[nargs] = cpp_in; // input to cpp |
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| 319 | nargs += 1; |
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| 320 | args[nargs] = NULL; // terminate argument list |
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[51b7345] | 321 | |
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[dffaeac] | 322 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 323 | cerr << "cpp nargs: " << nargs << endl; |
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| 324 | for ( i = 0; args[i] != NULL; i += 1 ) { |
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| 325 | cerr << args[i] << " "; |
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| 326 | } // for |
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| 327 | cerr << endl; |
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[dffaeac] | 328 | #endif // __DEBUG_H__ |
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[51b7345] | 329 | |
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[b87a5ed] | 330 | execvp( args[0], (char *const *)args ); // should not return |
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| 331 | perror( "CFA Translator error: cpp level, execvp" ); |
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| 332 | exit( EXIT_FAILURE ); |
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[51b7345] | 333 | } // if |
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| 334 | |
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[b87a5ed] | 335 | wait( &code ); // wait for child to finish |
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[51b7345] | 336 | |
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[dffaeac] | 337 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 338 | cerr << "return code from cpp:" << WEXITSTATUS(code) << endl; |
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[dffaeac] | 339 | #endif // __DEBUG_H__ |
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[51b7345] | 340 | |
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[b87a5ed] | 341 | if ( WIFSIGNALED(code) != 0 ) { // child failed ? |
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| 342 | rmtmpfile(); // remove tmpname |
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| 343 | cerr << "CFA Translator error: cpp failed with signal " << WTERMSIG(code) << endl; |
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| 344 | exit( EXIT_FAILURE ); |
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| 345 | } // if |
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[51b7345] | 346 | |
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[b87a5ed] | 347 | if ( WEXITSTATUS(code) != 0 ) { // child error ? |
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| 348 | rmtmpfile(); // remove tmpname |
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| 349 | exit( WEXITSTATUS( code ) ); // do not continue |
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| 350 | } // if |
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[51b7345] | 351 | |
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[b87a5ed] | 352 | // If -CFA flag specified, run the cfa-cpp preprocessor on the temporary file, and output is written to standard |
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| 353 | // output. Otherwise, run the cfa-cpp preprocessor on the temporary file and save the result into the output file. |
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[51b7345] | 354 | |
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[b87a5ed] | 355 | if ( fork() == 0 ) { // child runs CFA |
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[7b937575] | 356 | cargs[0] = ( *new string( bprefix + "/cfa-cpp" ) ).c_str(); |
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[b87a5ed] | 357 | |
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[4acc87f] | 358 | // Source file-name used to generate routine names containing global initializations for TU. |
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[7b937575] | 359 | cargs[ncargs] = ( *new string( "-F" ) ).c_str(); |
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| 360 | ncargs += 1; |
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[4acc87f] | 361 | cargs[ncargs] = ( *new string( string( cpp_in ) ) ).c_str(); |
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[7b937575] | 362 | ncargs += 1; |
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| 363 | |
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| 364 | cargs[ncargs] = tmpname; |
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| 365 | ncargs += 1; |
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[b87a5ed] | 366 | if ( o_name != NULL ) { |
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[7b937575] | 367 | cargs[ncargs] = o_name; |
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| 368 | ncargs += 1; |
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[b87a5ed] | 369 | } else if ( ! CFA_flag ) { // run cfa-cpp ? |
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[7b937575] | 370 | cargs[ncargs] = cpp_out; |
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| 371 | ncargs += 1; |
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[b87a5ed] | 372 | } // if |
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[7b937575] | 373 | cargs[ncargs] = NULL; // terminate argument list |
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[51b7345] | 374 | |
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[dffaeac] | 375 | #ifdef __DEBUG_H__ |
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[7b937575] | 376 | cerr << "cfa-cpp ncargs: " << o_name << " " << CFA_flag << " " << ncargs << endl; |
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| 377 | for ( i = 0; cargs[i] != NULL; i += 1 ) { |
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| 378 | cerr << cargs[i] << " "; |
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[b87a5ed] | 379 | } // for |
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| 380 | cerr << endl; |
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[dffaeac] | 381 | #endif // __DEBUG_H__ |
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[51b7345] | 382 | |
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[7b937575] | 383 | execvp( cargs[0], (char * const *)cargs ); // should not return |
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[b87a5ed] | 384 | perror( "CFA Translator error: cpp level, execvp" ); |
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| 385 | exit( EXIT_FAILURE ); |
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| 386 | } // if |
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[51b7345] | 387 | |
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[b87a5ed] | 388 | wait( &code ); // wait for child to finish |
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[51b7345] | 389 | |
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[dffaeac] | 390 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 391 | cerr << "return code from cfa-cpp:" << WEXITSTATUS(code) << endl; |
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[dffaeac] | 392 | #endif // __DEBUG_H__ |
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[51b7345] | 393 | |
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[b87a5ed] | 394 | // Must unlink here because file must exist across execvp. |
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| 395 | rmtmpfile(); // remove tmpname |
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[51b7345] | 396 | |
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[b87a5ed] | 397 | if ( WIFSIGNALED(code) ) { // child failed ? |
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| 398 | cerr << "CFA Translator error: cfa-cpp failed with signal " << WTERMSIG(code) << endl; |
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| 399 | exit( EXIT_FAILURE ); |
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| 400 | } // if |
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[51b7345] | 401 | |
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[b87a5ed] | 402 | exit( WEXITSTATUS(code) ); |
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[51b7345] | 403 | } // Stage1 |
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| 404 | |
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| 405 | |
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| 406 | void Stage2( const int argc, const char * const * argv ) { |
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[b87a5ed] | 407 | int i; |
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[51b7345] | 408 | |
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[b87a5ed] | 409 | string arg; |
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[51b7345] | 410 | |
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[b87a5ed] | 411 | const char *cpp_in = NULL; |
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[51b7345] | 412 | |
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[b87a5ed] | 413 | const char *args[argc + 100]; // leave space for 100 additional cfa command line values |
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| 414 | int nargs = 1; // number of arguments in args list; 0 => command name |
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[51b7345] | 415 | |
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[dffaeac] | 416 | #ifdef __DEBUG_H__ |
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[7b937575] | 417 | cerr << "Stage2" << endl; |
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[dffaeac] | 418 | #endif // __DEBUG_H__ |
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[7b937575] | 419 | |
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[b87a5ed] | 420 | // process all the arguments |
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[51b7345] | 421 | |
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[b87a5ed] | 422 | checkEnv( args, nargs ); // arguments passed via environment variables |
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[51b7345] | 423 | |
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[b87a5ed] | 424 | for ( i = 1; i < argc; i += 1 ) { |
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[dffaeac] | 425 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 426 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl; |
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[dffaeac] | 427 | #endif // __DEBUG_H__ |
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[b87a5ed] | 428 | arg = argv[i]; |
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[dffaeac] | 429 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 430 | cerr << "arg:\"" << arg << "\"" << endl; |
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[dffaeac] | 431 | #endif // __DEBUG_H__ |
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[b87a5ed] | 432 | if ( prefix( arg, "-" ) ) { |
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| 433 | // strip inappropriate flags |
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[51b7345] | 434 | |
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[b87a5ed] | 435 | if ( arg == "-quiet" || arg == "-version" || arg == "-fpreprocessed" || |
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[dffaeac] | 436 | // Currently CFA does not suppose precompiled .h files. |
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| 437 | prefix( arg, "--output-pch" ) ) { |
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[51b7345] | 438 | |
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[b87a5ed] | 439 | // strip inappropriate flags with an argument |
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[51b7345] | 440 | |
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[b87a5ed] | 441 | } else if ( arg == "-auxbase" || arg == "-auxbase-strip" || arg == "-dumpbase" ) { |
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| 442 | i += 1; |
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[dffaeac] | 443 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 444 | cerr << "arg:\"" << argv[i] << "\"" << endl; |
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[dffaeac] | 445 | #endif // __DEBUG_H__ |
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[51b7345] | 446 | |
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[b87a5ed] | 447 | // all other flags |
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[51b7345] | 448 | |
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[b87a5ed] | 449 | } else { |
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| 450 | args[nargs] = argv[i]; // pass the flag along |
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| 451 | nargs += 1; |
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| 452 | if ( arg == "-o" ) { |
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| 453 | i += 1; |
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| 454 | args[nargs] = argv[i]; // pass the argument along |
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| 455 | nargs += 1; |
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[68bceeb] | 456 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 457 | cerr << "arg:\"" << argv[i] << "\"" << endl; |
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[68bceeb] | 458 | #endif // __DEBUG_H__ |
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[b87a5ed] | 459 | } // if |
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| 460 | } // if |
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| 461 | } else { // obtain input and possibly output files |
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| 462 | if ( cpp_in == NULL ) { |
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| 463 | cpp_in = argv[i]; |
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[dffaeac] | 464 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 465 | cerr << "cpp_in:\"" << cpp_in << "\"" << endl; |
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[dffaeac] | 466 | #endif // __DEBUG_H__ |
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[b87a5ed] | 467 | } else { |
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| 468 | cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl; |
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| 469 | exit( EXIT_FAILURE ); |
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| 470 | } // if |
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| 471 | } // if |
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| 472 | } // for |
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[51b7345] | 473 | |
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[dffaeac] | 474 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 475 | cerr << "args:"; |
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| 476 | for ( i = 1; i < nargs; i += 1 ) { |
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| 477 | cerr << " " << args[i]; |
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| 478 | } // for |
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| 479 | cerr << endl; |
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| 480 | if ( cpp_in != NULL ) cerr << " " << cpp_in; |
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[dffaeac] | 481 | #endif // __DEBUG_H__ |
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[51b7345] | 482 | |
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[b87a5ed] | 483 | args[0] = compiler_name.c_str(); |
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| 484 | args[nargs] = "-S"; // only compile and put assembler output in specified file |
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| 485 | nargs += 1; |
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| 486 | args[nargs] = cpp_in; |
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| 487 | nargs += 1; |
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| 488 | args[nargs] = NULL; // terminate argument list |
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[51b7345] | 489 | |
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[dffaeac] | 490 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 491 | cerr << "stage2 nargs: " << nargs << endl; |
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| 492 | for ( i = 0; args[i] != NULL; i += 1 ) { |
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| 493 | cerr << args[i] << " "; |
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| 494 | } // for |
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| 495 | cerr << endl; |
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[dffaeac] | 496 | #endif // __DEBUG_H__ |
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[51b7345] | 497 | |
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[b87a5ed] | 498 | execvp( args[0], (char * const *)args ); // should not return |
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| 499 | perror( "CFA Translator error: cpp level, execvp" ); |
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| 500 | exit( EXIT_FAILURE ); // tell gcc not to go any further |
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[51b7345] | 501 | } // Stage2 |
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| 502 | |
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| 503 | |
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[b3c36f4] | 504 | int main( const int argc, const char * const argv[], __attribute__((unused)) const char * const env[] ) { |
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[dffaeac] | 505 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 506 | for ( int i = 0; env[i] != NULL; i += 1 ) { |
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| 507 | cerr << env[i] << endl; |
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| 508 | } // for |
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[dffaeac] | 509 | #endif // __DEBUG_H__ |
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[51b7345] | 510 | |
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[b87a5ed] | 511 | string arg = argv[1]; |
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[51b7345] | 512 | |
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[b87a5ed] | 513 | // Currently, stage 1 starts with flag -E and stage 2 with flag -fpreprocessed. |
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[51b7345] | 514 | |
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[b87a5ed] | 515 | if ( arg == "-E" ) { |
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| 516 | Stage1( argc, argv ); |
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| 517 | } else if ( arg == "-fpreprocessed" ) { |
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| 518 | Stage2( argc, argv ); |
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| 519 | } else { |
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| 520 | cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl; |
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| 521 | exit( EXIT_FAILURE ); |
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| 522 | } // if |
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[51b7345] | 523 | } // main |
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| 524 | |
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| 525 | // Local Variables: // |
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[b87a5ed] | 526 | // tab-width: 4 // |
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| 527 | // mode: c++ // |
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[51b7345] | 528 | // compile-command: "make install" // |
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| 529 | // End: // |
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