[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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[f8b6d921] | 12 | // Last Modified On : Wed Jan 18 08:14:21 2017 |
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| 13 | // Update Count : 81 |
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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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| 34 | string D__GCC_BPREFIX__( "-D__GCC_BPREFIX__=" ); |
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[d9a0e76] | 35 | string D__CFA_FLAGPREFIX__( "-D__CFA_FLAG__=" ); |
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[51b7345] | 36 | |
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[bdd516a] | 37 | char tmpname[] = P_tmpdir "/CFAXXXXXX"; |
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| 38 | int tmpfilefd = -1; |
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| 39 | |
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[51b7345] | 40 | |
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| 41 | bool prefix( string arg, string pre ) { |
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[b87a5ed] | 42 | return arg.substr( 0, pre.size() ) == pre; |
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[51b7345] | 43 | } // prefix |
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| 44 | |
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| 45 | |
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| 46 | void checkEnv( const char *args[], int &nargs ) { |
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[b87a5ed] | 47 | char *value; |
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[51b7345] | 48 | |
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[b87a5ed] | 49 | value = getenv( "__COMPILER__" ); |
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| 50 | if ( value != NULL ) { |
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| 51 | compiler_name = value; |
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[51b7345] | 52 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 53 | cerr << "env arg:\"" << compiler_name << "\"" << endl; |
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[51b7345] | 54 | #endif // __DEBUG_H__ |
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[b87a5ed] | 55 | } // if |
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[51b7345] | 56 | |
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[b87a5ed] | 57 | value = getenv( "__GCC_MACHINE__" ); |
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| 58 | if ( value != NULL ) { |
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| 59 | args[nargs] = ( *new string( value ) ).c_str(); // pass the argument along |
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[51b7345] | 60 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 61 | cerr << "env arg:\"" << args[nargs] << "\"" << endl; |
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[51b7345] | 62 | #endif // __DEBUG_H__ |
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[b87a5ed] | 63 | nargs += 1; |
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| 64 | } // if |
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[51b7345] | 65 | |
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[b87a5ed] | 66 | value = getenv( "__GCC_VERSION__" ); |
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| 67 | if ( value != NULL ) { |
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| 68 | args[nargs] = ( *new string( value ) ).c_str(); // pass the argument along |
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[51b7345] | 69 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 70 | cerr << "env arg:\"" << args[nargs] << "\"" << endl; |
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[51b7345] | 71 | #endif // __DEBUG_H__ |
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[b87a5ed] | 72 | nargs += 1; |
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| 73 | } // if |
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[51b7345] | 74 | } // checkEnv |
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| 75 | |
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| 76 | |
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[bdd516a] | 77 | void rmtmpfile() { |
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[b87a5ed] | 78 | if ( unlink( tmpname ) == -1 ) { // remove tmpname |
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| 79 | perror ( "CFA Translator error: cpp failed" ); |
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| 80 | exit( EXIT_FAILURE ); |
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| 81 | } // if |
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| 82 | tmpfilefd = -1; // mark closed |
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[bdd516a] | 83 | } // rmtmpfile |
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| 84 | |
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| 85 | |
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| 86 | void sigTermHandler( int signal ) { |
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[b87a5ed] | 87 | if ( tmpfilefd != -1 ) { // RACE, file created ? |
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| 88 | rmtmpfile(); // remove |
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| 89 | exit( EXIT_FAILURE ); // terminate |
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| 90 | } // if |
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[bdd516a] | 91 | } // sigTermHandler |
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| 92 | |
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| 93 | |
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[51b7345] | 94 | void Stage1( const int argc, const char * const argv[] ) { |
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[b87a5ed] | 95 | int code; |
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| 96 | int i; |
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[51b7345] | 97 | |
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[b87a5ed] | 98 | string arg; |
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| 99 | string bprefix; |
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[51b7345] | 100 | |
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[b87a5ed] | 101 | const char *cpp_in = NULL; |
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| 102 | const char *cpp_out = NULL; |
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[51b7345] | 103 | |
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[b87a5ed] | 104 | bool CFA_flag = false; |
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| 105 | bool cpp_flag = false; |
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| 106 | const char *o_name = NULL; |
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[51b7345] | 107 | |
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[b87a5ed] | 108 | const char *args[argc + 100]; // leave space for 100 additional cpp command line values |
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| 109 | int nargs = 1; // number of arguments in args list; 0 => command name |
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[7b937575] | 110 | const char *cargs[20]; // leave space for 20 additional cfa-cpp command line values |
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| 111 | int ncargs = 1; // 0 => command name |
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[51b7345] | 112 | |
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[b87a5ed] | 113 | signal( SIGINT, sigTermHandler ); |
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| 114 | signal( SIGTERM, sigTermHandler ); |
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[bdd516a] | 115 | |
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[7b937575] | 116 | #ifdef __DEBUG_H__ |
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| 117 | cerr << "Stage1" << endl; |
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| 118 | #endif // __DEBUG_H__ |
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| 119 | |
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[b87a5ed] | 120 | // process all the arguments |
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[51b7345] | 121 | |
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[b87a5ed] | 122 | checkEnv( args, nargs ); // arguments passed via environment variables |
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[51b7345] | 123 | |
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[b87a5ed] | 124 | for ( i = 1; i < argc; i += 1 ) { |
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[51b7345] | 125 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 126 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl; |
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[51b7345] | 127 | #endif // __DEBUG_H__ |
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[b87a5ed] | 128 | arg = argv[i]; |
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[51b7345] | 129 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 130 | cerr << "arg:\"" << arg << "\"" << endl; |
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[51b7345] | 131 | #endif // __DEBUG_H__ |
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[b87a5ed] | 132 | if ( prefix( arg, "-" ) ) { |
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| 133 | // strip g++ flags that are inappropriate or cause duplicates in subsequent passes |
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| 134 | |
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| 135 | if ( arg == "-quiet" ) { |
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| 136 | } else if ( arg == "-imultilib" || arg == "-imultiarch" ) { |
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| 137 | i += 1; // and the argument |
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| 138 | } else if ( prefix( arg, "-A" ) ) { |
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| 139 | } else if ( prefix( arg, "-D__GNU" ) ) { |
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| 140 | //******** |
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| 141 | // GCC 5.6.0 SEPARATED THE -D FROM THE ARGUMENT! |
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| 142 | //******** |
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| 143 | } else if ( arg == "-D" && prefix( argv[i + 1], "__GNU" ) ) { |
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| 144 | i += 1; // and the argument |
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| 145 | |
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| 146 | // strip flags controlling cpp step |
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| 147 | |
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| 148 | } else if ( arg == "-D__CPP__" ) { |
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| 149 | cpp_flag = true; |
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| 150 | } else if ( arg == "-D" && string( argv[i + 1] ) == "__CPP__" ) { |
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| 151 | i += 1; // and the argument |
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| 152 | cpp_flag = true; |
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[4c82a3c] | 153 | } else if ( arg == "-D__CFA_PREPROCESS__" ) { |
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[b87a5ed] | 154 | CFA_flag = true; |
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[4c82a3c] | 155 | } else if ( arg == "-D" && string( argv[i + 1] ) == "__CFA_PREPROCESS__" ) { |
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[b87a5ed] | 156 | i += 1; // and the argument |
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| 157 | CFA_flag = true; |
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| 158 | } else if ( prefix( arg, D__CFA_FLAGPREFIX__ ) ) { |
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[7b937575] | 159 | cargs[ncargs] = ( *new string( arg.substr( D__CFA_FLAGPREFIX__.size() ) ) ).c_str(); |
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| 160 | ncargs += 1; |
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[b87a5ed] | 161 | } else if ( arg == "-D" && prefix( argv[i + 1], D__CFA_FLAGPREFIX__.substr(2) ) ) { |
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[7b937575] | 162 | cargs[ncargs] = ( *new string( string( argv[i + 1] ).substr( D__CFA_FLAGPREFIX__.size() - 2 ) ) ).c_str(); |
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| 163 | ncargs += 1; |
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[b87a5ed] | 164 | i += 1; // and the argument |
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| 165 | } else if ( prefix( arg, D__GCC_BPREFIX__ ) ) { |
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| 166 | bprefix = arg.substr( D__GCC_BPREFIX__.size() ); |
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| 167 | } else if ( arg == "-D" && prefix( argv[i + 1], D__GCC_BPREFIX__.substr(2) ) ) { |
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| 168 | bprefix = string( argv[i + 1] ).substr( D__GCC_BPREFIX__.size() - 2 ); |
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| 169 | i += 1; // and the argument |
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| 170 | |
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[f8b6d921] | 171 | // all other flags |
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[b87a5ed] | 172 | |
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| 173 | } else if ( arg == "-o" ) { |
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| 174 | i += 1; |
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| 175 | o_name = argv[i]; |
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| 176 | } else { |
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| 177 | args[nargs] = argv[i]; // pass the flag along |
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| 178 | nargs += 1; |
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| 179 | // CPP flags with an argument |
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[f8b6d921] | 180 | if ( arg == "-D" || arg == "-U" || arg == "-I" || arg == "-MF" || arg == "-MT" || arg == "-MQ" || |
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[b87a5ed] | 181 | arg == "-include" || arg == "-imacros" || arg == "-idirafter" || arg == "-iprefix" || |
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| 182 | arg == "-iwithprefix" || arg == "-iwithprefixbefore" || arg == "-isystem" || arg == "-isysroot" ) { |
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| 183 | i += 1; |
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| 184 | args[nargs] = argv[i]; // pass the argument along |
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| 185 | nargs += 1; |
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[51b7345] | 186 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 187 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl; |
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[51b7345] | 188 | #endif // __DEBUG_H__ |
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[b87a5ed] | 189 | } else if ( arg == "-MD" || arg == "-MMD" ) { |
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| 190 | args[nargs] = "-MF"; // insert before file |
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| 191 | nargs += 1; |
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| 192 | i += 1; |
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| 193 | args[nargs] = argv[i]; // pass the argument along |
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| 194 | nargs += 1; |
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[51b7345] | 195 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 196 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl; |
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[51b7345] | 197 | #endif // __DEBUG_H__ |
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[b87a5ed] | 198 | } // if |
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| 199 | } // if |
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| 200 | } else { // obtain input and possibly output files |
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| 201 | if ( cpp_in == NULL ) { |
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| 202 | cpp_in = argv[i]; |
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| 203 | #ifdef __DEBUG_H__ |
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| 204 | cerr << "cpp_in:\"" << cpp_in << "\"" << endl; |
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| 205 | #endif // __DEBUG_H__ |
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| 206 | } else if ( cpp_out == NULL ) { |
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| 207 | cpp_out = argv[i]; |
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[51b7345] | 208 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 209 | cerr << "cpp_out:\"" << cpp_out << "\""<< endl; |
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[51b7345] | 210 | #endif // __DEBUG_H__ |
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[b87a5ed] | 211 | } else { |
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| 212 | cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl; |
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| 213 | exit( EXIT_FAILURE ); |
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| 214 | } // if |
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| 215 | } // if |
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| 216 | } // for |
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| 217 | |
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[51b7345] | 218 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 219 | cerr << "args:"; |
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| 220 | for ( i = 1; i < nargs; i += 1 ) { |
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| 221 | cerr << " " << args[i]; |
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| 222 | } // for |
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| 223 | if ( cpp_in != NULL ) cerr << " " << cpp_in; |
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| 224 | if ( cpp_out != NULL ) cerr << " " << cpp_out; |
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| 225 | cerr << endl; |
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[51b7345] | 226 | #endif // __DEBUG_H__ |
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[b87a5ed] | 227 | |
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| 228 | if ( cpp_in == NULL ) { |
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[51b7345] | 229 | cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl; |
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| 230 | exit( EXIT_FAILURE ); |
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| 231 | } // if |
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[b87a5ed] | 232 | |
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| 233 | if ( cpp_flag ) { |
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| 234 | // The -E flag is specified on the cfa command so only run the preprocessor and output is written to standard |
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| 235 | // 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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| 236 | |
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| 237 | args[0] = compiler_name.c_str(); |
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| 238 | args[nargs] = cpp_in; |
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| 239 | nargs += 1; |
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| 240 | if ( o_name != NULL ) { // location for output |
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| 241 | args[nargs] = "-o"; |
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| 242 | nargs += 1; |
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| 243 | args[nargs] = o_name; |
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| 244 | nargs += 1; |
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| 245 | } // if |
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| 246 | args[nargs] = NULL; // terminate argument list |
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[51b7345] | 247 | |
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| 248 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 249 | cerr << "nargs: " << nargs << endl; |
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| 250 | for ( i = 0; args[i] != NULL; i += 1 ) { |
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| 251 | cerr << args[i] << " "; |
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| 252 | } // for |
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| 253 | cerr << endl; |
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[51b7345] | 254 | #endif // __DEBUG_H__ |
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| 255 | |
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[b87a5ed] | 256 | execvp( args[0], (char *const *)args ); // should not return |
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| 257 | perror( "CFA Translator error: cpp level, execvp" ); |
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| 258 | exit( EXIT_FAILURE ); |
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| 259 | } // if |
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[51b7345] | 260 | |
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[b87a5ed] | 261 | // Create a temporary file to store output of the C preprocessor. |
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[51b7345] | 262 | |
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[b87a5ed] | 263 | tmpfilefd = mkstemp( tmpname ); |
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| 264 | if ( tmpfilefd == -1 ) { |
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| 265 | perror( "CFA Translator error: cpp level, mkstemp" ); |
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| 266 | exit( EXIT_FAILURE ); |
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[51b7345] | 267 | } // if |
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| 268 | |
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| 269 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 270 | cerr << "tmpname:" << tmpname << " tmpfilefd:" << tmpfilefd << endl; |
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[51b7345] | 271 | #endif // __DEBUG_H__ |
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| 272 | |
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[b87a5ed] | 273 | // Run the C preprocessor and save the output in tmpfile. |
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[51b7345] | 274 | |
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[b87a5ed] | 275 | if ( fork() == 0 ) { // child process ? |
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| 276 | // -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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| 277 | // an error (e.g., cannot find include file). Whereas, output is always generated, even when there is an error, |
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| 278 | // when cpp writes to stdout. Hence, stdout is redirected into the temporary file. |
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| 279 | if ( freopen( tmpname, "w", stdout ) == NULL ) { // redirect stdout to tmpname |
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| 280 | perror( "CFA Translator error: cpp level, freopen" ); |
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| 281 | exit( EXIT_FAILURE ); |
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| 282 | } // if |
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[51b7345] | 283 | |
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[b87a5ed] | 284 | args[0] = compiler_name.c_str(); |
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| 285 | args[nargs] = cpp_in; // input to cpp |
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| 286 | nargs += 1; |
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| 287 | args[nargs] = NULL; // terminate argument list |
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[51b7345] | 288 | |
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| 289 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 290 | cerr << "cpp nargs: " << nargs << endl; |
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| 291 | for ( i = 0; args[i] != NULL; i += 1 ) { |
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| 292 | cerr << args[i] << " "; |
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| 293 | } // for |
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| 294 | cerr << endl; |
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[51b7345] | 295 | #endif // __DEBUG_H__ |
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| 296 | |
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[b87a5ed] | 297 | execvp( args[0], (char *const *)args ); // should not return |
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| 298 | perror( "CFA Translator error: cpp level, execvp" ); |
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| 299 | exit( EXIT_FAILURE ); |
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[51b7345] | 300 | } // if |
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| 301 | |
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[b87a5ed] | 302 | wait( &code ); // wait for child to finish |
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[51b7345] | 303 | |
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| 304 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 305 | cerr << "return code from cpp:" << WEXITSTATUS(code) << endl; |
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[51b7345] | 306 | #endif // __DEBUG_H__ |
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| 307 | |
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[b87a5ed] | 308 | if ( WIFSIGNALED(code) != 0 ) { // child failed ? |
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| 309 | rmtmpfile(); // remove tmpname |
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| 310 | cerr << "CFA Translator error: cpp failed with signal " << WTERMSIG(code) << endl; |
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| 311 | exit( EXIT_FAILURE ); |
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| 312 | } // if |
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[51b7345] | 313 | |
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[b87a5ed] | 314 | if ( WEXITSTATUS(code) != 0 ) { // child error ? |
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| 315 | rmtmpfile(); // remove tmpname |
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| 316 | exit( WEXITSTATUS( code ) ); // do not continue |
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| 317 | } // if |
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[51b7345] | 318 | |
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[b87a5ed] | 319 | // If -CFA flag specified, run the cfa-cpp preprocessor on the temporary file, and output is written to standard |
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| 320 | // output. Otherwise, run the cfa-cpp preprocessor on the temporary file and save the result into the output file. |
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[51b7345] | 321 | |
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[b87a5ed] | 322 | if ( fork() == 0 ) { // child runs CFA |
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[7b937575] | 323 | cargs[0] = ( *new string( bprefix + "/cfa-cpp" ) ).c_str(); |
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[b87a5ed] | 324 | |
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[4acc87f] | 325 | // Source file-name used to generate routine names containing global initializations for TU. |
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[7b937575] | 326 | cargs[ncargs] = ( *new string( "-F" ) ).c_str(); |
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| 327 | ncargs += 1; |
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[4acc87f] | 328 | cargs[ncargs] = ( *new string( string( cpp_in ) ) ).c_str(); |
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[7b937575] | 329 | ncargs += 1; |
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| 330 | |
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| 331 | cargs[ncargs] = tmpname; |
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| 332 | ncargs += 1; |
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[b87a5ed] | 333 | if ( o_name != NULL ) { |
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[7b937575] | 334 | cargs[ncargs] = o_name; |
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| 335 | ncargs += 1; |
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[b87a5ed] | 336 | } else if ( ! CFA_flag ) { // run cfa-cpp ? |
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[7b937575] | 337 | cargs[ncargs] = cpp_out; |
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| 338 | ncargs += 1; |
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[b87a5ed] | 339 | } // if |
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[7b937575] | 340 | cargs[ncargs] = NULL; // terminate argument list |
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[51b7345] | 341 | |
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| 342 | #ifdef __DEBUG_H__ |
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[7b937575] | 343 | cerr << "cfa-cpp ncargs: " << o_name << " " << CFA_flag << " " << ncargs << endl; |
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| 344 | for ( i = 0; cargs[i] != NULL; i += 1 ) { |
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| 345 | cerr << cargs[i] << " "; |
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[b87a5ed] | 346 | } // for |
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| 347 | cerr << endl; |
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[51b7345] | 348 | #endif // __DEBUG_H__ |
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| 349 | |
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[7b937575] | 350 | execvp( cargs[0], (char * const *)cargs ); // should not return |
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[b87a5ed] | 351 | perror( "CFA Translator error: cpp level, execvp" ); |
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| 352 | exit( EXIT_FAILURE ); |
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| 353 | } // if |
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[51b7345] | 354 | |
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[b87a5ed] | 355 | wait( &code ); // wait for child to finish |
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[51b7345] | 356 | |
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| 357 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 358 | cerr << "return code from cfa-cpp:" << WEXITSTATUS(code) << endl; |
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[51b7345] | 359 | #endif // __DEBUG_H__ |
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| 360 | |
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[b87a5ed] | 361 | // Must unlink here because file must exist across execvp. |
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| 362 | rmtmpfile(); // remove tmpname |
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[51b7345] | 363 | |
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[b87a5ed] | 364 | if ( WIFSIGNALED(code) ) { // child failed ? |
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| 365 | cerr << "CFA Translator error: cfa-cpp failed with signal " << WTERMSIG(code) << endl; |
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| 366 | exit( EXIT_FAILURE ); |
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| 367 | } // if |
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[51b7345] | 368 | |
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[b87a5ed] | 369 | exit( WEXITSTATUS(code) ); |
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[51b7345] | 370 | } // Stage1 |
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| 371 | |
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| 372 | |
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| 373 | void Stage2( const int argc, const char * const * argv ) { |
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[b87a5ed] | 374 | int i; |
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[51b7345] | 375 | |
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[b87a5ed] | 376 | string arg; |
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[51b7345] | 377 | |
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[b87a5ed] | 378 | const char *cpp_in = NULL; |
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[51b7345] | 379 | |
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[b87a5ed] | 380 | const char *args[argc + 100]; // leave space for 100 additional cfa command line values |
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| 381 | int nargs = 1; // number of arguments in args list; 0 => command name |
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[51b7345] | 382 | |
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[7b937575] | 383 | #ifdef __DEBUG_H__ |
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| 384 | cerr << "Stage2" << endl; |
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| 385 | #endif // __DEBUG_H__ |
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| 386 | |
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[b87a5ed] | 387 | // process all the arguments |
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[51b7345] | 388 | |
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[b87a5ed] | 389 | checkEnv( args, nargs ); // arguments passed via environment variables |
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[51b7345] | 390 | |
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[b87a5ed] | 391 | for ( i = 1; i < argc; i += 1 ) { |
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[51b7345] | 392 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 393 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl; |
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[51b7345] | 394 | #endif // __DEBUG_H__ |
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[b87a5ed] | 395 | arg = argv[i]; |
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[51b7345] | 396 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 397 | cerr << "arg:\"" << arg << "\"" << endl; |
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[51b7345] | 398 | #endif // __DEBUG_H__ |
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[b87a5ed] | 399 | if ( prefix( arg, "-" ) ) { |
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| 400 | // strip inappropriate flags |
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[51b7345] | 401 | |
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[b87a5ed] | 402 | if ( arg == "-quiet" || arg == "-version" || arg == "-fpreprocessed" || |
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| 403 | // Currently CFA does not suppose precompiled .h files. |
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| 404 | prefix( arg, "--output-pch" ) ) { |
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[51b7345] | 405 | |
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[b87a5ed] | 406 | // strip inappropriate flags with an argument |
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[51b7345] | 407 | |
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[b87a5ed] | 408 | } else if ( arg == "-auxbase" || arg == "-auxbase-strip" || arg == "-dumpbase" ) { |
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| 409 | i += 1; |
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[51b7345] | 410 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 411 | cerr << "arg:\"" << argv[i] << "\"" << endl; |
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[51b7345] | 412 | #endif // __DEBUG_H__ |
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| 413 | |
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[b87a5ed] | 414 | // all other flags |
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[51b7345] | 415 | |
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[b87a5ed] | 416 | } else { |
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| 417 | args[nargs] = argv[i]; // pass the flag along |
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| 418 | nargs += 1; |
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| 419 | if ( arg == "-o" ) { |
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| 420 | i += 1; |
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| 421 | args[nargs] = argv[i]; // pass the argument along |
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| 422 | nargs += 1; |
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[51b7345] | 423 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 424 | cerr << "arg:\"" << argv[i] << "\"" << endl; |
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[51b7345] | 425 | #endif // __DEBUG_H__ |
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[b87a5ed] | 426 | } // if |
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| 427 | } // if |
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| 428 | } else { // obtain input and possibly output files |
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| 429 | if ( cpp_in == NULL ) { |
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| 430 | cpp_in = argv[i]; |
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[51b7345] | 431 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 432 | cerr << "cpp_in:\"" << cpp_in << "\"" << endl; |
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[51b7345] | 433 | #endif // __DEBUG_H__ |
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[b87a5ed] | 434 | } else { |
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| 435 | cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl; |
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| 436 | exit( EXIT_FAILURE ); |
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| 437 | } // if |
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| 438 | } // if |
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| 439 | } // for |
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[51b7345] | 440 | |
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| 441 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 442 | cerr << "args:"; |
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| 443 | for ( i = 1; i < nargs; i += 1 ) { |
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| 444 | cerr << " " << args[i]; |
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| 445 | } // for |
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| 446 | cerr << endl; |
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| 447 | if ( cpp_in != NULL ) cerr << " " << cpp_in; |
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[51b7345] | 448 | #endif // __DEBUG_H__ |
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| 449 | |
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[b87a5ed] | 450 | args[0] = compiler_name.c_str(); |
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| 451 | args[nargs] = "-S"; // only compile and put assembler output in specified file |
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| 452 | nargs += 1; |
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| 453 | args[nargs] = cpp_in; |
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| 454 | nargs += 1; |
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| 455 | args[nargs] = NULL; // terminate argument list |
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[51b7345] | 456 | |
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| 457 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 458 | cerr << "stage2 nargs: " << nargs << endl; |
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| 459 | for ( i = 0; args[i] != NULL; i += 1 ) { |
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| 460 | cerr << args[i] << " "; |
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| 461 | } // for |
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| 462 | cerr << endl; |
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[51b7345] | 463 | #endif // __DEBUG_H__ |
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| 464 | |
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[b87a5ed] | 465 | execvp( args[0], (char * const *)args ); // should not return |
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| 466 | perror( "CFA Translator error: cpp level, execvp" ); |
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| 467 | exit( EXIT_FAILURE ); // tell gcc not to go any further |
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[51b7345] | 468 | } // Stage2 |
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| 469 | |
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| 470 | |
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| 471 | int main( const int argc, const char * const argv[], const char * const env[] ) { |
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| 472 | #ifdef __DEBUG_H__ |
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[b87a5ed] | 473 | for ( int i = 0; env[i] != NULL; i += 1 ) { |
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| 474 | cerr << env[i] << endl; |
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| 475 | } // for |
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[51b7345] | 476 | #endif // __DEBUG_H__ |
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| 477 | |
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[b87a5ed] | 478 | string arg = argv[1]; |
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[51b7345] | 479 | |
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[b87a5ed] | 480 | // Currently, stage 1 starts with flag -E and stage 2 with flag -fpreprocessed. |
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[51b7345] | 481 | |
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[b87a5ed] | 482 | if ( arg == "-E" ) { |
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| 483 | Stage1( argc, argv ); |
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| 484 | } else if ( arg == "-fpreprocessed" ) { |
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| 485 | Stage2( argc, argv ); |
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| 486 | } else { |
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| 487 | cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl; |
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| 488 | exit( EXIT_FAILURE ); |
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| 489 | } // if |
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[51b7345] | 490 | } // main |
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| 491 | |
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| 492 | // Local Variables: // |
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[b87a5ed] | 493 | // tab-width: 4 // |
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| 494 | // mode: c++ // |
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[51b7345] | 495 | // compile-command: "make install" // |
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| 496 | // End: // |
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