[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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[51b73452] | 7 | // cc1.cc --
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[b87a5ed] | 8 | //
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| 9 | // Author : Peter A. Buhr
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[51b73452] | 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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[e3215c5] | 12 | // Last Modified On : Sat May 12 16:11:53 2018
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| 13 | // Update Count : 94
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[51b73452] | 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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[51b73452] | 25 |
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[b87a5ed] | 26 | #include "config.h" // configure info
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[51b73452] | 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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[51b73452] | 33 |
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[e3215c5] | 34 | string D__GCC_X__( "-D__GCC_X__=" );
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[51b73452] | 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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[51b73452] | 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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[51b73452] | 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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[51b73452] | 44 | } // prefix
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| 45 |
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| 46 |
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| 47 | void checkEnv( const char *args[], int &nargs ) {
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[b87a5ed] | 48 | char *value;
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[51b73452] | 49 |
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[b87a5ed] | 50 | value = getenv( "__COMPILER__" );
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| 51 | if ( value != NULL ) {
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| 52 | compiler_name = value;
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[51b73452] | 53 | #ifdef __DEBUG_H__
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[b87a5ed] | 54 | cerr << "env arg:\"" << compiler_name << "\"" << endl;
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[51b73452] | 55 | #endif // __DEBUG_H__
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[b87a5ed] | 56 | } // if
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[51b73452] | 57 |
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[b87a5ed] | 58 | value = getenv( "__GCC_MACHINE__" );
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| 59 | if ( value != NULL ) {
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| 60 | args[nargs] = ( *new string( value ) ).c_str(); // pass the argument along
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[51b73452] | 61 | #ifdef __DEBUG_H__
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[b87a5ed] | 62 | cerr << "env arg:\"" << args[nargs] << "\"" << endl;
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[51b73452] | 63 | #endif // __DEBUG_H__
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[b87a5ed] | 64 | nargs += 1;
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| 65 | } // if
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[51b73452] | 66 |
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[b87a5ed] | 67 | value = getenv( "__GCC_VERSION__" );
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| 68 | if ( value != NULL ) {
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| 69 | args[nargs] = ( *new string( value ) ).c_str(); // pass the argument along
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[51b73452] | 70 | #ifdef __DEBUG_H__
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[b87a5ed] | 71 | cerr << "env arg:\"" << args[nargs] << "\"" << endl;
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[51b73452] | 72 | #endif // __DEBUG_H__
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[b87a5ed] | 73 | nargs += 1;
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| 74 | } // if
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[51b73452] | 75 | } // checkEnv
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| 76 |
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| 77 |
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[bdd516a] | 78 | void rmtmpfile() {
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[b87a5ed] | 79 | if ( unlink( tmpname ) == -1 ) { // remove tmpname
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| 80 | perror ( "CFA Translator error: cpp failed" );
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| 81 | exit( EXIT_FAILURE );
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| 82 | } // if
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| 83 | tmpfilefd = -1; // mark closed
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[bdd516a] | 84 | } // rmtmpfile
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| 85 |
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| 86 |
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[b3c36f4] | 87 | void sigTermHandler( __attribute__((unused)) int signal ) {
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[b87a5ed] | 88 | if ( tmpfilefd != -1 ) { // RACE, file created ?
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| 89 | rmtmpfile(); // remove
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| 90 | exit( EXIT_FAILURE ); // terminate
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| 91 | } // if
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[bdd516a] | 92 | } // sigTermHandler
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| 93 |
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| 94 |
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[51b73452] | 95 | void Stage1( const int argc, const char * const argv[] ) {
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[b87a5ed] | 96 | int code;
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| 97 | int i;
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[51b73452] | 98 |
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[b87a5ed] | 99 | string arg;
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| 100 | string bprefix;
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[51b73452] | 101 |
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[b87a5ed] | 102 | const char *cpp_in = NULL;
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| 103 | const char *cpp_out = NULL;
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[51b73452] | 104 |
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[b87a5ed] | 105 | bool CFA_flag = false;
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| 106 | bool cpp_flag = false;
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| 107 | const char *o_name = NULL;
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[51b73452] | 108 |
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[b87a5ed] | 109 | const char *args[argc + 100]; // leave space for 100 additional cpp command line values
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| 110 | int nargs = 1; // number of arguments in args list; 0 => command name
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[7b937575] | 111 | const char *cargs[20]; // leave space for 20 additional cfa-cpp command line values
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| 112 | int ncargs = 1; // 0 => command name
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[51b73452] | 113 |
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[b87a5ed] | 114 | signal( SIGINT, sigTermHandler );
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| 115 | signal( SIGTERM, sigTermHandler );
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[bdd516a] | 116 |
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[7b937575] | 117 | #ifdef __DEBUG_H__
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| 118 | cerr << "Stage1" << endl;
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| 119 | #endif // __DEBUG_H__
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| 120 |
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[b87a5ed] | 121 | // process all the arguments
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[51b73452] | 122 |
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[b87a5ed] | 123 | checkEnv( args, nargs ); // arguments passed via environment variables
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[51b73452] | 124 |
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[b87a5ed] | 125 | for ( i = 1; i < argc; i += 1 ) {
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[51b73452] | 126 | #ifdef __DEBUG_H__
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[b87a5ed] | 127 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
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[51b73452] | 128 | #endif // __DEBUG_H__
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[b87a5ed] | 129 | arg = argv[i];
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[51b73452] | 130 | #ifdef __DEBUG_H__
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[b87a5ed] | 131 | cerr << "arg:\"" << arg << "\"" << endl;
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[51b73452] | 132 | #endif // __DEBUG_H__
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[b87a5ed] | 133 | if ( prefix( arg, "-" ) ) {
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| 134 | // strip g++ flags that are inappropriate or cause duplicates in subsequent passes
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| 135 |
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| 136 | if ( arg == "-quiet" ) {
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| 137 | } else if ( arg == "-imultilib" || arg == "-imultiarch" ) {
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| 138 | i += 1; // and the argument
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| 139 | } else if ( prefix( arg, "-A" ) ) {
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| 140 | } else if ( prefix( arg, "-D__GNU" ) ) {
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| 141 | //********
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| 142 | // GCC 5.6.0 SEPARATED THE -D FROM THE ARGUMENT!
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| 143 | //********
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| 144 | } else if ( arg == "-D" && prefix( argv[i + 1], "__GNU" ) ) {
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| 145 | i += 1; // and the argument
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| 146 |
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| 147 | // strip flags controlling cpp step
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| 148 |
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| 149 | } else if ( arg == "-D__CPP__" ) {
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| 150 | cpp_flag = true;
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| 151 | } else if ( arg == "-D" && string( argv[i + 1] ) == "__CPP__" ) {
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| 152 | i += 1; // and the argument
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| 153 | cpp_flag = true;
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[4c82a3c] | 154 | } else if ( arg == "-D__CFA_PREPROCESS__" ) {
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[b87a5ed] | 155 | CFA_flag = true;
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[4c82a3c] | 156 | } else if ( arg == "-D" && string( argv[i + 1] ) == "__CFA_PREPROCESS__" ) {
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[b87a5ed] | 157 | i += 1; // and the argument
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| 158 | CFA_flag = true;
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| 159 | } else if ( prefix( arg, D__CFA_FLAGPREFIX__ ) ) {
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[7b937575] | 160 | cargs[ncargs] = ( *new string( arg.substr( D__CFA_FLAGPREFIX__.size() ) ) ).c_str();
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| 161 | ncargs += 1;
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[b87a5ed] | 162 | } else if ( arg == "-D" && prefix( argv[i + 1], D__CFA_FLAGPREFIX__.substr(2) ) ) {
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[7b937575] | 163 | cargs[ncargs] = ( *new string( string( argv[i + 1] ).substr( D__CFA_FLAGPREFIX__.size() - 2 ) ) ).c_str();
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| 164 | ncargs += 1;
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[b87a5ed] | 165 | i += 1; // and the argument
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[e3215c5] | 166 | } else if ( prefix( arg, D__GCC_X__ ) ) {
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| 167 | args[nargs] = "-x";
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| 168 | nargs += 1;
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| 169 | args[nargs] = ( *new string( arg.substr( D__GCC_X__.size() ) ) ).c_str(); // pass the flag along
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| 170 | nargs += 1;
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| 171 | } else if ( arg == "-D" && prefix( argv[i + 1], D__GCC_X__.substr(2) ) ) {
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| 172 | args[nargs] = "-x";
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| 173 | nargs += 1;
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| 174 | args[nargs] = ( *new string( string( argv[i + 1] ).substr( D__GCC_X__.size() - 2 ) ) ).c_str(); // pass the flag along
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| 175 | nargs += 1;
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| 176 | i += 1; // and the argument
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[b87a5ed] | 177 | } else if ( prefix( arg, D__GCC_BPREFIX__ ) ) {
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| 178 | bprefix = arg.substr( D__GCC_BPREFIX__.size() );
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| 179 | } else if ( arg == "-D" && prefix( argv[i + 1], D__GCC_BPREFIX__.substr(2) ) ) {
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| 180 | bprefix = string( argv[i + 1] ).substr( D__GCC_BPREFIX__.size() - 2 );
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| 181 | i += 1; // and the argument
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| 182 |
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[f8b6d921] | 183 | // all other flags
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[b87a5ed] | 184 |
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| 185 | } else if ( arg == "-o" ) {
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| 186 | i += 1;
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| 187 | o_name = argv[i];
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| 188 | } else {
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| 189 | args[nargs] = argv[i]; // pass the flag along
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| 190 | nargs += 1;
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| 191 | // CPP flags with an argument
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[f8b6d921] | 192 | if ( arg == "-D" || arg == "-U" || arg == "-I" || arg == "-MF" || arg == "-MT" || arg == "-MQ" ||
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[b87a5ed] | 193 | arg == "-include" || arg == "-imacros" || arg == "-idirafter" || arg == "-iprefix" ||
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| 194 | arg == "-iwithprefix" || arg == "-iwithprefixbefore" || arg == "-isystem" || arg == "-isysroot" ) {
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| 195 | i += 1;
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| 196 | args[nargs] = argv[i]; // pass the argument along
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| 197 | nargs += 1;
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[51b73452] | 198 | #ifdef __DEBUG_H__
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[b87a5ed] | 199 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
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[51b73452] | 200 | #endif // __DEBUG_H__
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[b87a5ed] | 201 | } else if ( arg == "-MD" || arg == "-MMD" ) {
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| 202 | args[nargs] = "-MF"; // insert before file
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| 203 | nargs += 1;
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| 204 | i += 1;
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| 205 | args[nargs] = argv[i]; // pass the argument along
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| 206 | nargs += 1;
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[51b73452] | 207 | #ifdef __DEBUG_H__
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[b87a5ed] | 208 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
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[51b73452] | 209 | #endif // __DEBUG_H__
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[b87a5ed] | 210 | } // if
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| 211 | } // if
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| 212 | } else { // obtain input and possibly output files
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| 213 | if ( cpp_in == NULL ) {
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| 214 | cpp_in = argv[i];
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| 215 | #ifdef __DEBUG_H__
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| 216 | cerr << "cpp_in:\"" << cpp_in << "\"" << endl;
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| 217 | #endif // __DEBUG_H__
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| 218 | } else if ( cpp_out == NULL ) {
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| 219 | cpp_out = argv[i];
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[51b73452] | 220 | #ifdef __DEBUG_H__
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[b87a5ed] | 221 | cerr << "cpp_out:\"" << cpp_out << "\""<< endl;
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[51b73452] | 222 | #endif // __DEBUG_H__
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[b87a5ed] | 223 | } else {
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| 224 | cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl;
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| 225 | exit( EXIT_FAILURE );
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| 226 | } // if
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| 227 | } // if
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| 228 | } // for
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| 229 |
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[51b73452] | 230 | #ifdef __DEBUG_H__
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[b87a5ed] | 231 | cerr << "args:";
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| 232 | for ( i = 1; i < nargs; i += 1 ) {
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| 233 | cerr << " " << args[i];
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| 234 | } // for
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| 235 | if ( cpp_in != NULL ) cerr << " " << cpp_in;
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| 236 | if ( cpp_out != NULL ) cerr << " " << cpp_out;
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| 237 | cerr << endl;
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[51b73452] | 238 | #endif // __DEBUG_H__
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[b87a5ed] | 239 |
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| 240 | if ( cpp_in == NULL ) {
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[51b73452] | 241 | cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl;
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| 242 | exit( EXIT_FAILURE );
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| 243 | } // if
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[b87a5ed] | 244 |
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| 245 | if ( cpp_flag ) {
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| 246 | // The -E flag is specified on the cfa command so only run the preprocessor and output is written to standard
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| 247 | // 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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| 248 |
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| 249 | args[0] = compiler_name.c_str();
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| 250 | args[nargs] = cpp_in;
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| 251 | nargs += 1;
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| 252 | if ( o_name != NULL ) { // location for output
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| 253 | args[nargs] = "-o";
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| 254 | nargs += 1;
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| 255 | args[nargs] = o_name;
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| 256 | nargs += 1;
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| 257 | } // if
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| 258 | args[nargs] = NULL; // terminate argument list
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[51b73452] | 259 |
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| 260 | #ifdef __DEBUG_H__
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[b87a5ed] | 261 | cerr << "nargs: " << nargs << endl;
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| 262 | for ( i = 0; args[i] != NULL; i += 1 ) {
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| 263 | cerr << args[i] << " ";
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| 264 | } // for
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| 265 | cerr << endl;
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[51b73452] | 266 | #endif // __DEBUG_H__
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| 267 |
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[b87a5ed] | 268 | execvp( args[0], (char *const *)args ); // should not return
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| 269 | perror( "CFA Translator error: cpp level, execvp" );
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| 270 | exit( EXIT_FAILURE );
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| 271 | } // if
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[51b73452] | 272 |
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[b87a5ed] | 273 | // Create a temporary file to store output of the C preprocessor.
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[51b73452] | 274 |
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[b87a5ed] | 275 | tmpfilefd = mkstemp( tmpname );
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| 276 | if ( tmpfilefd == -1 ) {
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| 277 | perror( "CFA Translator error: cpp level, mkstemp" );
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| 278 | exit( EXIT_FAILURE );
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[51b73452] | 279 | } // if
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| 280 |
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| 281 | #ifdef __DEBUG_H__
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[b87a5ed] | 282 | cerr << "tmpname:" << tmpname << " tmpfilefd:" << tmpfilefd << endl;
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[51b73452] | 283 | #endif // __DEBUG_H__
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| 284 |
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[b87a5ed] | 285 | // Run the C preprocessor and save the output in tmpfile.
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[51b73452] | 286 |
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[b87a5ed] | 287 | if ( fork() == 0 ) { // child process ?
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| 288 | // -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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| 289 | // an error (e.g., cannot find include file). Whereas, output is always generated, even when there is an error,
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| 290 | // when cpp writes to stdout. Hence, stdout is redirected into the temporary file.
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| 291 | if ( freopen( tmpname, "w", stdout ) == NULL ) { // redirect stdout to tmpname
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| 292 | perror( "CFA Translator error: cpp level, freopen" );
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| 293 | exit( EXIT_FAILURE );
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| 294 | } // if
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[51b73452] | 295 |
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[b87a5ed] | 296 | args[0] = compiler_name.c_str();
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| 297 | args[nargs] = cpp_in; // input to cpp
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| 298 | nargs += 1;
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| 299 | args[nargs] = NULL; // terminate argument list
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[51b73452] | 300 |
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| 301 | #ifdef __DEBUG_H__
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[b87a5ed] | 302 | cerr << "cpp nargs: " << nargs << endl;
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| 303 | for ( i = 0; args[i] != NULL; i += 1 ) {
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| 304 | cerr << args[i] << " ";
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| 305 | } // for
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| 306 | cerr << endl;
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[51b73452] | 307 | #endif // __DEBUG_H__
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| 308 |
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[b87a5ed] | 309 | execvp( args[0], (char *const *)args ); // should not return
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| 310 | perror( "CFA Translator error: cpp level, execvp" );
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| 311 | exit( EXIT_FAILURE );
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[51b73452] | 312 | } // if
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| 313 |
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[b87a5ed] | 314 | wait( &code ); // wait for child to finish
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[51b73452] | 315 |
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| 316 | #ifdef __DEBUG_H__
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[b87a5ed] | 317 | cerr << "return code from cpp:" << WEXITSTATUS(code) << endl;
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[51b73452] | 318 | #endif // __DEBUG_H__
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| 319 |
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[b87a5ed] | 320 | if ( WIFSIGNALED(code) != 0 ) { // child failed ?
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| 321 | rmtmpfile(); // remove tmpname
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| 322 | cerr << "CFA Translator error: cpp failed with signal " << WTERMSIG(code) << endl;
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| 323 | exit( EXIT_FAILURE );
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| 324 | } // if
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[51b73452] | 325 |
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[b87a5ed] | 326 | if ( WEXITSTATUS(code) != 0 ) { // child error ?
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| 327 | rmtmpfile(); // remove tmpname
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| 328 | exit( WEXITSTATUS( code ) ); // do not continue
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| 329 | } // if
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[51b73452] | 330 |
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[b87a5ed] | 331 | // If -CFA flag specified, run the cfa-cpp preprocessor on the temporary file, and output is written to standard
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| 332 | // output. Otherwise, run the cfa-cpp preprocessor on the temporary file and save the result into the output file.
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[51b73452] | 333 |
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[b87a5ed] | 334 | if ( fork() == 0 ) { // child runs CFA
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[7b937575] | 335 | cargs[0] = ( *new string( bprefix + "/cfa-cpp" ) ).c_str();
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[b87a5ed] | 336 |
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[4acc87f] | 337 | // Source file-name used to generate routine names containing global initializations for TU.
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[7b937575] | 338 | cargs[ncargs] = ( *new string( "-F" ) ).c_str();
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| 339 | ncargs += 1;
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[4acc87f] | 340 | cargs[ncargs] = ( *new string( string( cpp_in ) ) ).c_str();
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[7b937575] | 341 | ncargs += 1;
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| 342 |
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| 343 | cargs[ncargs] = tmpname;
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| 344 | ncargs += 1;
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[b87a5ed] | 345 | if ( o_name != NULL ) {
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[7b937575] | 346 | cargs[ncargs] = o_name;
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| 347 | ncargs += 1;
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[b87a5ed] | 348 | } else if ( ! CFA_flag ) { // run cfa-cpp ?
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[7b937575] | 349 | cargs[ncargs] = cpp_out;
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| 350 | ncargs += 1;
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[b87a5ed] | 351 | } // if
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[7b937575] | 352 | cargs[ncargs] = NULL; // terminate argument list
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[51b73452] | 353 |
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| 354 | #ifdef __DEBUG_H__
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[7b937575] | 355 | cerr << "cfa-cpp ncargs: " << o_name << " " << CFA_flag << " " << ncargs << endl;
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| 356 | for ( i = 0; cargs[i] != NULL; i += 1 ) {
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| 357 | cerr << cargs[i] << " ";
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[b87a5ed] | 358 | } // for
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| 359 | cerr << endl;
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[51b73452] | 360 | #endif // __DEBUG_H__
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| 361 |
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[7b937575] | 362 | execvp( cargs[0], (char * const *)cargs ); // should not return
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[b87a5ed] | 363 | perror( "CFA Translator error: cpp level, execvp" );
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| 364 | exit( EXIT_FAILURE );
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| 365 | } // if
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[51b73452] | 366 |
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[b87a5ed] | 367 | wait( &code ); // wait for child to finish
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[51b73452] | 368 |
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| 369 | #ifdef __DEBUG_H__
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[b87a5ed] | 370 | cerr << "return code from cfa-cpp:" << WEXITSTATUS(code) << endl;
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[51b73452] | 371 | #endif // __DEBUG_H__
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| 372 |
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[b87a5ed] | 373 | // Must unlink here because file must exist across execvp.
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| 374 | rmtmpfile(); // remove tmpname
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[51b73452] | 375 |
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[b87a5ed] | 376 | if ( WIFSIGNALED(code) ) { // child failed ?
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| 377 | cerr << "CFA Translator error: cfa-cpp failed with signal " << WTERMSIG(code) << endl;
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| 378 | exit( EXIT_FAILURE );
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| 379 | } // if
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[51b73452] | 380 |
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[b87a5ed] | 381 | exit( WEXITSTATUS(code) );
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[51b73452] | 382 | } // Stage1
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| 383 |
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| 384 |
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| 385 | void Stage2( const int argc, const char * const * argv ) {
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[b87a5ed] | 386 | int i;
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[51b73452] | 387 |
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[b87a5ed] | 388 | string arg;
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[51b73452] | 389 |
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[b87a5ed] | 390 | const char *cpp_in = NULL;
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[51b73452] | 391 |
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[b87a5ed] | 392 | const char *args[argc + 100]; // leave space for 100 additional cfa command line values
|
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| 393 | int nargs = 1; // number of arguments in args list; 0 => command name
|
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[51b73452] | 394 |
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[7b937575] | 395 | #ifdef __DEBUG_H__
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| 396 | cerr << "Stage2" << endl;
|
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| 397 | #endif // __DEBUG_H__
|
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| 398 |
|
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[b87a5ed] | 399 | // process all the arguments
|
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[51b73452] | 400 |
|
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[b87a5ed] | 401 | checkEnv( args, nargs ); // arguments passed via environment variables
|
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[51b73452] | 402 |
|
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[b87a5ed] | 403 | for ( i = 1; i < argc; i += 1 ) {
|
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[51b73452] | 404 | #ifdef __DEBUG_H__
|
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[b87a5ed] | 405 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
|
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[51b73452] | 406 | #endif // __DEBUG_H__
|
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[b87a5ed] | 407 | arg = argv[i];
|
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[51b73452] | 408 | #ifdef __DEBUG_H__
|
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[b87a5ed] | 409 | cerr << "arg:\"" << arg << "\"" << endl;
|
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[51b73452] | 410 | #endif // __DEBUG_H__
|
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[b87a5ed] | 411 | if ( prefix( arg, "-" ) ) {
|
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| 412 | // strip inappropriate flags
|
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[51b73452] | 413 |
|
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[b87a5ed] | 414 | if ( arg == "-quiet" || arg == "-version" || arg == "-fpreprocessed" ||
|
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| 415 | // Currently CFA does not suppose precompiled .h files.
|
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| 416 | prefix( arg, "--output-pch" ) ) {
|
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[51b73452] | 417 |
|
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[b87a5ed] | 418 | // strip inappropriate flags with an argument
|
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[51b73452] | 419 |
|
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[b87a5ed] | 420 | } else if ( arg == "-auxbase" || arg == "-auxbase-strip" || arg == "-dumpbase" ) {
|
---|
| 421 | i += 1;
|
---|
[51b73452] | 422 | #ifdef __DEBUG_H__
|
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[b87a5ed] | 423 | cerr << "arg:\"" << argv[i] << "\"" << endl;
|
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[51b73452] | 424 | #endif // __DEBUG_H__
|
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| 425 |
|
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[b87a5ed] | 426 | // all other flags
|
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[51b73452] | 427 |
|
---|
[b87a5ed] | 428 | } else {
|
---|
| 429 | args[nargs] = argv[i]; // pass the flag along
|
---|
| 430 | nargs += 1;
|
---|
| 431 | if ( arg == "-o" ) {
|
---|
| 432 | i += 1;
|
---|
| 433 | args[nargs] = argv[i]; // pass the argument along
|
---|
| 434 | nargs += 1;
|
---|
[51b73452] | 435 | #ifdef __DEBUG_H__
|
---|
[b87a5ed] | 436 | cerr << "arg:\"" << argv[i] << "\"" << endl;
|
---|
[51b73452] | 437 | #endif // __DEBUG_H__
|
---|
[b87a5ed] | 438 | } // if
|
---|
| 439 | } // if
|
---|
| 440 | } else { // obtain input and possibly output files
|
---|
| 441 | if ( cpp_in == NULL ) {
|
---|
| 442 | cpp_in = argv[i];
|
---|
[51b73452] | 443 | #ifdef __DEBUG_H__
|
---|
[b87a5ed] | 444 | cerr << "cpp_in:\"" << cpp_in << "\"" << endl;
|
---|
[51b73452] | 445 | #endif // __DEBUG_H__
|
---|
[b87a5ed] | 446 | } else {
|
---|
| 447 | cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl;
|
---|
| 448 | exit( EXIT_FAILURE );
|
---|
| 449 | } // if
|
---|
| 450 | } // if
|
---|
| 451 | } // for
|
---|
[51b73452] | 452 |
|
---|
| 453 | #ifdef __DEBUG_H__
|
---|
[b87a5ed] | 454 | cerr << "args:";
|
---|
| 455 | for ( i = 1; i < nargs; i += 1 ) {
|
---|
| 456 | cerr << " " << args[i];
|
---|
| 457 | } // for
|
---|
| 458 | cerr << endl;
|
---|
| 459 | if ( cpp_in != NULL ) cerr << " " << cpp_in;
|
---|
[51b73452] | 460 | #endif // __DEBUG_H__
|
---|
| 461 |
|
---|
[b87a5ed] | 462 | args[0] = compiler_name.c_str();
|
---|
| 463 | args[nargs] = "-S"; // only compile and put assembler output in specified file
|
---|
| 464 | nargs += 1;
|
---|
| 465 | args[nargs] = cpp_in;
|
---|
| 466 | nargs += 1;
|
---|
| 467 | args[nargs] = NULL; // terminate argument list
|
---|
[51b73452] | 468 |
|
---|
| 469 | #ifdef __DEBUG_H__
|
---|
[b87a5ed] | 470 | cerr << "stage2 nargs: " << nargs << endl;
|
---|
| 471 | for ( i = 0; args[i] != NULL; i += 1 ) {
|
---|
| 472 | cerr << args[i] << " ";
|
---|
| 473 | } // for
|
---|
| 474 | cerr << endl;
|
---|
[51b73452] | 475 | #endif // __DEBUG_H__
|
---|
| 476 |
|
---|
[b87a5ed] | 477 | execvp( args[0], (char * const *)args ); // should not return
|
---|
| 478 | perror( "CFA Translator error: cpp level, execvp" );
|
---|
| 479 | exit( EXIT_FAILURE ); // tell gcc not to go any further
|
---|
[51b73452] | 480 | } // Stage2
|
---|
| 481 |
|
---|
| 482 |
|
---|
[b3c36f4] | 483 | int main( const int argc, const char * const argv[], __attribute__((unused)) const char * const env[] ) {
|
---|
[51b73452] | 484 | #ifdef __DEBUG_H__
|
---|
[b87a5ed] | 485 | for ( int i = 0; env[i] != NULL; i += 1 ) {
|
---|
| 486 | cerr << env[i] << endl;
|
---|
| 487 | } // for
|
---|
[51b73452] | 488 | #endif // __DEBUG_H__
|
---|
| 489 |
|
---|
[b87a5ed] | 490 | string arg = argv[1];
|
---|
[51b73452] | 491 |
|
---|
[b87a5ed] | 492 | // Currently, stage 1 starts with flag -E and stage 2 with flag -fpreprocessed.
|
---|
[51b73452] | 493 |
|
---|
[b87a5ed] | 494 | if ( arg == "-E" ) {
|
---|
| 495 | Stage1( argc, argv );
|
---|
| 496 | } else if ( arg == "-fpreprocessed" ) {
|
---|
| 497 | Stage2( argc, argv );
|
---|
| 498 | } else {
|
---|
| 499 | cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl;
|
---|
| 500 | exit( EXIT_FAILURE );
|
---|
| 501 | } // if
|
---|
[51b73452] | 502 | } // main
|
---|
| 503 |
|
---|
| 504 | // Local Variables: //
|
---|
[b87a5ed] | 505 | // tab-width: 4 //
|
---|
| 506 | // mode: c++ //
|
---|
[51b73452] | 507 | // compile-command: "make install" //
|
---|
| 508 | // End: //
|
---|