| 1 | //
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
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| 3 | //
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| 4 | // The contents of this file are covered under the licence agreement in the
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| 5 | // file "LICENCE" distributed with Cforall.
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| 6 | //
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| 7 | // cfa.cc --
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| 8 | //
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| 9 | // Author : Peter A. Buhr
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| 10 | // Created On : Tue Aug 20 13:44:49 2002
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| 11 | // Last Modified By : Peter A. Buhr
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| 12 | // Last Modified On : Fri Aug 23 16:27:07 2019
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| 13 | // Update Count : 411
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| 14 | //
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| 15 |
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| 16 | #include <iostream>
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| 17 | #include <cstdio> // perror
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| 18 | #include <cstdlib> // putenv, exit
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| 19 | #include <unistd.h> // execvp
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| 20 | #include <string> // STL version
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| 21 | #include <string.h> // strcmp
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| 22 | #include <algorithm> // find
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| 23 |
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| 24 | #include <sys/types.h>
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| 25 | #include <sys/stat.h>
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| 26 |
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| 27 | #include "Common/SemanticError.h"
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| 28 | #include "config.h" // configure info
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| 29 |
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| 30 | using std::cerr;
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| 31 | using std::endl;
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| 32 | using std::string;
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| 33 | using std::to_string;
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| 34 |
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| 35 | //#define __DEBUG_H__
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| 36 |
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| 37 |
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| 38 | void Putenv( char * argv[], string arg ) {
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| 39 | static int flags = 0; // environment variables must have unique names
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| 40 |
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| 41 | if ( putenv( (char *)( *new string( string( "__CFA_FLAG" + to_string( flags++ ) + "__=" ) + arg ) ).c_str() ) ) {
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| 42 | cerr << argv[0] << " error, cannot set environment variable." << endl;
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| 43 | exit( EXIT_FAILURE );
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| 44 | } // if
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| 45 | } // Putenv
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| 46 |
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| 47 |
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| 48 | bool prefix( const string & arg, const string & pre ) { // check if string has prefix
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| 49 | return arg.substr( 0, pre.size() ) == pre;
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| 50 | } // prefix
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| 51 |
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| 52 | bool suffix( const string & arg ) { // check if string has suffix
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| 53 | enum { NumSuffixes = 3 };
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| 54 | static const string suffixes[NumSuffixes] = { "cfa", "hfa", "ifa" };
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| 55 |
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| 56 | size_t dot = arg.find_last_of( "." );
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| 57 | if ( dot == string::npos ) return false;
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| 58 | const string * end = suffixes + NumSuffixes;
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| 59 | return std::find( suffixes, end, arg.substr( dot + 1 ) ) != end;
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| 60 | } // suffix
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| 61 |
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| 62 |
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| 63 | static inline bool dirExists( const string & path ) { // check if directory exists
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| 64 | struct stat info;
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| 65 | if ( stat( path.c_str(), &info ) != 0 ) return false;
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| 66 | if ( info.st_mode & S_IFDIR ) return true;
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| 67 | return false;
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| 68 | } // dirExists
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| 69 |
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| 70 |
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| 71 | #define xstr(s) str(s)
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| 72 | #define str(s) #s
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| 73 |
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| 74 | int main( int argc, char * argv[] ) {
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| 75 | string Version( CFA_VERSION_LONG ); // current version number from CONFIG
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| 76 | string Major( xstr( CFA_VERSION_MAJOR ) ), Minor( xstr( CFA_VERSION_MINOR ) ), Patch( xstr( CFA_VERSION_PATCH ) );
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| 77 |
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| 78 | string installincdir( CFA_INCDIR ); // fixed location of include files
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| 79 | string installlibdir( CFA_LIBDIR ); // fixed location of cc1 and cfa-cpp commands when installed
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| 80 | string srcdriverdir ( TOP_BUILDDIR "driver"); // fixed location of cc1 and cfa-cpp commands when in tree
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| 81 |
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| 82 | string heading; // banner printed at start of cfa compilation
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| 83 | string arg; // current command-line argument during command-line parsing
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| 84 | string Bprefix; // path where gcc looks for compiler command steps
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| 85 | string langstd; // language standard
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| 86 |
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| 87 | string compiler_path( CFA_BACKEND_CC ); // path/name of C compiler
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| 88 | string compiler_name; // name of C compiler
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| 89 |
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| 90 | bool x_flag = false; // -x flag
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| 91 | bool nonoptarg = false; // no non-option arguments specified, i.e., no file names
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| 92 | bool link = true; // link stage occurring
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| 93 | bool verbose = false; // -v flag
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| 94 | bool quiet = false; // -quiet flag
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| 95 | bool debug = true; // -debug flag
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| 96 | bool nolib = false; // -nolib flag
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| 97 | bool help = false; // -help flag
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| 98 | bool CFA_flag = false; // -CFA flag
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| 99 | bool cpp_flag = false; // -E or -M flag, preprocessor only
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| 100 | bool std_flag = false; // -std= flag
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| 101 | bool noincstd_flag = false; // -no-include-stdhdr= flag
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| 102 | bool debugging __attribute(( unused )) = false; // -g flag
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| 103 | bool m32 = false; // -m32 flag
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| 104 | bool m64 = false; // -m64 flag
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| 105 | bool intree = false; // build in tree
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| 106 | int o_file = 0; // -o filename position
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| 107 |
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| 108 | const char *args[argc + 100]; // cfa command line values, plus some space for additional flags
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| 109 | int sargs = 1; // starting location for arguments in args list
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| 110 | int nargs = sargs; // number of arguments in args list; 0 => command name
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| 111 |
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| 112 | const char *libs[argc + 20]; // non-user libraries must come separately, plus some added libraries and flags
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| 113 | int nlibs = 0;
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| 114 |
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| 115 | #ifdef __DEBUG_H__
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| 116 | cerr << "CFA:" << endl;
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| 117 | for ( int i = 1; i < argc; i += 1 ) {
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| 118 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
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| 119 | } // for
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| 120 | #endif // __DEBUG_H__
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| 121 |
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| 122 | // process command-line arguments
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| 123 |
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| 124 | for ( int i = 1; i < argc; i += 1 ) {
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| 125 | arg = argv[i]; // convert to string value
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| 126 | if ( prefix( arg, "-" ) ) {
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| 127 | // pass through arguments
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| 128 |
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| 129 | if ( arg == "-Xlinker" || arg == "-o" ) {
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| 130 | args[nargs++] = argv[i]; // pass argument along
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| 131 | i += 1;
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| 132 | if ( i == argc ) continue; // next argument available ?
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| 133 | args[nargs++] = argv[i]; // pass argument along
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| 134 | if ( arg == "-o" ) o_file = i; // remember file
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| 135 | } else if ( arg == "-XCFA" ) { // CFA pass through
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| 136 | i += 1;
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| 137 | Putenv( argv, argv[i] );
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| 138 |
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| 139 | // CFA specific arguments
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| 140 |
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| 141 | } else if ( arg == "-CFA" ) {
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| 142 | CFA_flag = true; // strip the -CFA flag
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| 143 | link = false;
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| 144 | args[nargs++] = "-fsyntax-only"; // stop after stage 2
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| 145 | } else if ( arg == "-debug" ) {
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| 146 | debug = true; // strip the debug flag
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| 147 | } else if ( arg == "-nodebug" ) {
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| 148 | debug = false; // strip the nodebug flag
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| 149 | } else if ( arg == "-nolib" ) {
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| 150 | nolib = true; // strip the nodebug flag
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| 151 | } else if ( arg == "-quiet" ) {
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| 152 | quiet = true; // strip the quiet flag
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| 153 | } else if ( arg == "-noquiet" ) {
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| 154 | quiet = false; // strip the noquiet flag
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| 155 | } else if ( arg == "-help" ) {
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| 156 | help = true; // strip the help flag
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| 157 | } else if ( arg == "-nohelp" ) {
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| 158 | help = false; // strip the nohelp flag
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| 159 | } else if ( arg == "-no-include-stdhdr" ) {
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| 160 | noincstd_flag = true; // strip the no-include-stdhdr flag
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| 161 | } else if ( arg == "-in-tree" ) {
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| 162 | intree = true;
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| 163 | } else if ( arg == "-compiler" ) {
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| 164 | // use the user specified compiler
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| 165 | i += 1;
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| 166 | if ( i == argc ) continue; // next argument available ?
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| 167 | compiler_path = argv[i];
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| 168 | Putenv( argv, arg + "=" + argv[i] );
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| 169 |
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| 170 | // C specific arguments
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| 171 |
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| 172 | } else if ( arg == "-v" ) {
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| 173 | verbose = true; // verbosity required
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| 174 | args[nargs++] = argv[i]; // pass argument along
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| 175 | } else if ( arg == "-g" ) {
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| 176 | debugging = true; // symbolic debugging required
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| 177 | args[nargs++] = argv[i]; // pass argument along
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| 178 | } else if ( arg == "-save-temps" ) {
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| 179 | args[nargs++] = argv[i]; // pass argument along
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| 180 | Putenv( argv, arg ); // save cfa-cpp output
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| 181 | } else if ( prefix( arg, "-x" ) ) { // file suffix ?
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| 182 | string lang;
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| 183 | args[nargs++] = argv[i]; // pass argument along
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| 184 | if ( arg.length() == 2 ) { // separate argument ?
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| 185 | i += 1;
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| 186 | if ( i == argc ) continue; // next argument available ?
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| 187 | lang = argv[i];
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| 188 | args[nargs++] = argv[i]; // pass argument along
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| 189 | } else {
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| 190 | lang = arg.substr( 2 );
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| 191 | } // if
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| 192 | x_flag = lang != "none";
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| 193 | } else if ( prefix( arg, "-std=" ) || prefix( arg, "--std=" ) ) {
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| 194 | std_flag = true; // -std=XX provided
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| 195 | args[nargs++] = argv[i]; // pass argument along
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| 196 | } else if ( arg == "-w" ) {
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| 197 | args[nargs++] = argv[i]; // pass argument along
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| 198 | Putenv( argv, arg );
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| 199 | } else if ( prefix( arg, "-W" ) ) { // check before next tests
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| 200 | if ( arg == "-Werror" || arg == "-Wall" ) {
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| 201 | args[nargs++] = argv[i]; // pass argument along
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| 202 | Putenv( argv, argv[i] );
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| 203 | } else {
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| 204 | unsigned int adv = prefix( arg, "-Wno-" ) ? 5 : 2;
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| 205 | args[nargs] = argv[i]; // conditionally pass argument along
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| 206 | const char * warning = argv[i] + adv; // extract warning
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| 207 | if ( SemanticWarning_Exist( warning ) ) { // replace the argument for cfa-cpp
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| 208 | Putenv( argv, arg );
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| 209 | } // if
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| 210 | nargs += 1;
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| 211 | } // if
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| 212 | } else if ( prefix( arg, "-B" ) ) {
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| 213 | Bprefix = arg.substr(2); // strip the -B flag
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| 214 | args[nargs++] = ( *new string( string("-D__GCC_BPREFIX__=") + Bprefix ) ).c_str();
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| 215 | } else if ( arg == "-c" || arg == "-S" || arg == "-E" || arg == "-M" || arg == "-MM" ) {
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| 216 | args[nargs++] = argv[i]; // pass argument along
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| 217 | if ( arg == "-E" || arg == "-M" || arg == "-MM" ) {
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| 218 | cpp_flag = true; // cpp only
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| 219 | } // if
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| 220 | link = false; // no linkage required
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| 221 | } else if ( arg[1] == 'l' ) {
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| 222 | // if the user specifies a library, load it after user code
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| 223 | libs[nlibs++] = argv[i];
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| 224 | } else if ( arg == "-m32" ) {
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| 225 | m32 = true;
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| 226 | m64 = false;
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| 227 | args[nargs++] = argv[i];
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| 228 | } else if ( arg == "-m64" ) {
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| 229 | m64 = true;
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| 230 | m32 = false;
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| 231 | args[nargs++] = argv[i];
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| 232 | } else {
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| 233 | // concatenate any other arguments
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| 234 | args[nargs++] = argv[i];
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| 235 | } // if
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| 236 | } else {
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| 237 | bool cfa = suffix( arg ); // check suffix
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| 238 | if ( ! x_flag && cfa ) { // no explicit suffix and cfa suffix ?
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| 239 | args[nargs++] = "-x";
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| 240 | args[nargs++] = "c";
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| 241 | } // if
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| 242 | args[nargs++] = argv[i]; // concatenate files
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| 243 | if ( ! x_flag && cfa ) { // no explicit suffix and cfa suffix ?
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| 244 | args[nargs++] = "-x";
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| 245 | args[nargs++] = "none";
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| 246 | } // if
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| 247 | nonoptarg = true;
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| 248 | } // if
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| 249 | } // for
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| 250 |
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| 251 | #ifdef __x86_64__
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| 252 | args[nargs++] = "-mcx16"; // allow double-wide CAA
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| 253 | #endif // __x86_64__
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| 254 |
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| 255 | #ifdef __DEBUG_H__
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| 256 | cerr << "args:";
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| 257 | for ( int i = 1; i < nargs; i += 1 ) {
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| 258 | cerr << " " << args[i];
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| 259 | } // for
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| 260 | cerr << endl;
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| 261 | #endif // __DEBUG_H__
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| 262 |
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| 263 | // -E flag stops at cc1 stage 1, so cfa-cpp in cc1 stage 2 is never executed.
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| 264 | if ( cpp_flag && CFA_flag ) {
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| 265 | cerr << argv[0] << " error, cannot use -E and -CFA flags together." << endl;
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| 266 | exit( EXIT_FAILURE );
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| 267 | } // if
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| 268 |
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| 269 | // add the CFA include-library paths, which allow direct access to header files without directory qualification
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| 270 | if ( ! intree ) {
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| 271 | args[nargs++] = "-I" CFA_INCDIR;
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| 272 | if ( ! noincstd_flag ) { // do not use during build
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| 273 | args[nargs++] = "-I" CFA_INCDIR "stdhdr";
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| 274 | } // if
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| 275 | args[nargs++] = "-I" CFA_INCDIR "concurrency";
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| 276 | args[nargs++] = "-I" CFA_INCDIR "containers";
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| 277 | } else {
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| 278 | args[nargs++] = "-I" TOP_SRCDIR "libcfa/src";
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| 279 | if ( ! noincstd_flag ) { // do not use during build
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| 280 | args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/stdhdr";
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| 281 | } // if
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| 282 | args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/concurrency";
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| 283 | args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/containers";
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| 284 | } // if
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| 285 |
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| 286 | // add stdbool to get defines for bool/true/false
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| 287 | args[nargs++] = "-imacros";
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| 288 | args[nargs++] = "stdbool.h";
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| 289 |
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| 290 | string libbase;
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| 291 | if ( ! intree ) {
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| 292 | libbase = CFA_LIBDIR;
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| 293 | } else {
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| 294 | libbase = TOP_BUILDDIR "libcfa/";
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| 295 | Putenv( argv, "-t" );
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| 296 | } // if
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| 297 |
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| 298 | string arch( m32 ? CFA_32_CPU : (m64 ? CFA_64_CPU : CFA_DEFAULT_CPU) );
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| 299 | if ( ! m32 && ! m64 ) {
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| 300 | if ( arch == "x86" ) {
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| 301 | args[nargs++] = "-m32";
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| 302 | } else if ( arch == "x64" ) {
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| 303 | args[nargs++] = "-m64";
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| 304 | } // if
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| 305 | } // if
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| 306 |
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| 307 | string libdir( libbase + arch + "-" + (nolib ? "nolib" : (debug ? "debug": "nodebug")) );
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| 308 | if ( ! dirExists( libdir ) ) {
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| 309 | cerr << argv[0] << " internal error, cannot find prelude directory " << libdir << endl;
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| 310 | exit( EXIT_FAILURE );
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| 311 | } // if
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| 312 |
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| 313 | for ( int i = 0; i < nlibs; i += 1 ) { // copy non-user libraries after all user libraries
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| 314 | args[nargs++] = libs[i];
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| 315 | } // for
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| 316 |
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| 317 | if ( link ) {
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| 318 | args[nargs++] = "-Xlinker";
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| 319 | args[nargs++] = "--undefined=__cfaabi_dbg_bits_write";
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| 320 | args[nargs++] = "-Xlinker";
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| 321 | args[nargs++] = "--undefined=__cfaabi_interpose_startup";
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| 322 | args[nargs++] = "-Xlinker";
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| 323 | args[nargs++] = "--undefined=__cfaabi_appready_startup";
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| 324 |
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| 325 | // include the cfa library in case it's needed
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| 326 | args[nargs++] = ( *new string( string("-L" ) + libdir + (intree ? "/src/.libs" : "")) ).c_str();
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| 327 | args[nargs++] = ( *new string( string("-Wl,-rpath," ) + libdir + (intree ? "/src/.libs" : "")) ).c_str();
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| 328 | args[nargs++] = "-Wl,--push-state,--as-needed";
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| 329 | args[nargs++] = "-lcfathread";
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| 330 | args[nargs++] = "-Wl,--pop-state";
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| 331 | args[nargs++] = "-lcfa";
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| 332 | args[nargs++] = "-lpthread";
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| 333 | args[nargs++] = "-ldl";
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| 334 | args[nargs++] = "-lrt";
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| 335 | args[nargs++] = "-lm";
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| 336 | } // if
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| 337 |
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| 338 | args[nargs++] = "-fexceptions"; // add exception flags (unconditionally)
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| 339 |
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| 340 | // add flags based on the type of compile
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| 341 |
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| 342 | args[nargs++] = ( *new string( string("-D__CFA_MAJOR__=") + Major ) ).c_str();
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| 343 | args[nargs++] = ( *new string( string("-D__CFA_MINOR__=") + Minor ) ).c_str();
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| 344 | args[nargs++] = ( *new string( string("-D__CFA_PATCH__=") + Patch ) ).c_str();
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| 345 | args[nargs++] = "-D__CFA__";
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| 346 | args[nargs++] = "-D__CFORALL__";
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| 347 | args[nargs++] = "-D__cforall";
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| 348 |
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| 349 | if ( cpp_flag ) {
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| 350 | args[nargs++] = "-D__CPP__";
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| 351 | } // if
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| 352 |
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| 353 | if ( CFA_flag ) {
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| 354 | Putenv( argv, "-N" );
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| 355 | Putenv( argv, "-CFA" );
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| 356 | // -CFA implies cc1 stage 2, but gcc does not pass the -o file to this stage because it believe the file is for
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| 357 | // the linker. Hence, the -o file is explicit passed to cc1 stage 2 and used as cfa-cpp's output file.
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| 358 | if ( o_file ) Putenv( argv, string( "-o=" ) + argv[o_file] );
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| 359 | } else {
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| 360 | Putenv( argv, "-L" );
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| 361 | } // if
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| 362 |
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| 363 | Putenv( argv, "--prelude-dir=" + libdir + (intree ? "/prelude" : "") );
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| 364 |
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| 365 | if ( debug ) {
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| 366 | heading += " (debug)";
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| 367 | args[nargs++] = "-D__CFA_DEBUG__";
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| 368 | } else {
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| 369 | heading += " (no debug)";
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| 370 | } // if
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| 371 |
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| 372 | if ( Bprefix.length() == 0 ) {
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| 373 | Bprefix = ! intree ? installlibdir : srcdriverdir;
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| 374 | if ( Bprefix[Bprefix.length() - 1] != '/' ) Bprefix += '/';
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| 375 | args[nargs++] = ( *new string( string("-D__GCC_BPREFIX__=") + Bprefix ) ).c_str();
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| 376 | } // if
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| 377 |
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| 378 | args[nargs++] = "-Xlinker"; // used by backtrace
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| 379 | args[nargs++] = "-export-dynamic";
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| 380 |
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| 381 | // execute the compilation command
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| 382 |
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| 383 | args[0] = compiler_path.c_str(); // set compiler command for exec
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| 384 | // find actual name of the compiler independent of the path to it
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| 385 | int p = compiler_path.find_last_of( '/' ); // scan r -> l for first '/'
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| 386 | if ( p == -1 ) {
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| 387 | compiler_name = compiler_path;
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| 388 | } else {
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| 389 | compiler_name = *new string( compiler_path.substr( p + 1 ) );
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| 390 | } // if
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| 391 |
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| 392 | if ( prefix( compiler_name, "gcc" ) ) { // allow suffix on gcc name
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| 393 | args[nargs++] = "-no-integrated-cpp";
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| 394 | args[nargs++] = "-Wno-deprecated";
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| 395 | #ifdef HAVE_CAST_FUNCTION_TYPE
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| 396 | args[nargs++] = "-Wno-cast-function-type";
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| 397 | #endif // HAVE_CAST_FUNCTION_TYPE
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| 398 | if ( ! std_flag ) { // default c11, if none specified
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| 399 | args[nargs++] = "-std=gnu11";
|
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| 400 | } // if
|
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| 401 | args[nargs++] = "-fgnu89-inline";
|
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| 402 | args[nargs++] = "-D__int8_t_defined"; // prevent gcc type-size attributes
|
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| 403 | args[nargs++] = ( *new string( string("-B") + Bprefix ) ).c_str();
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| 404 | } else {
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| 405 | cerr << argv[0] << " error, compiler \"" << compiler_name << "\" unsupported." << endl;
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| 406 | exit( EXIT_FAILURE );
|
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| 407 | } // if
|
|---|
| 408 |
|
|---|
| 409 | args[nargs] = nullptr; // terminate
|
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| 410 |
|
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| 411 | #ifdef __DEBUG_H__
|
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| 412 | cerr << "nargs: " << nargs << endl;
|
|---|
| 413 | cerr << "args:" << endl;
|
|---|
| 414 | for ( int i = 0; args[i] != nullptr; i += 1 ) {
|
|---|
| 415 | cerr << " \"" << args[i] << "\"" << endl;
|
|---|
| 416 | } // for
|
|---|
| 417 | #endif // __DEBUG_H__
|
|---|
| 418 |
|
|---|
| 419 | if ( ! quiet ) {
|
|---|
| 420 | cerr << "CFA " << "Version " << Version << heading << endl;
|
|---|
| 421 |
|
|---|
| 422 | if ( help ) {
|
|---|
| 423 | cerr <<
|
|---|
| 424 | "-debug\t\t\t: use cfa runtime with debug checking" << endl <<
|
|---|
| 425 | "-help\t\t\t: print this help message" << endl <<
|
|---|
| 426 | "-quiet\t\t\t: print no messages from the cfa command" << endl <<
|
|---|
| 427 | "-CFA\t\t\t: run the cpp preprocessor and the cfa-cpp translator" << endl <<
|
|---|
| 428 | "-XCFA -cfa-cpp-flag\t: pass next flag as-is to the cfa-cpp translator" << endl <<
|
|---|
| 429 | "...\t\t\t: any other " << compiler_name << " flags" << endl;
|
|---|
| 430 | } // if
|
|---|
| 431 | } // if
|
|---|
| 432 |
|
|---|
| 433 | if ( verbose ) {
|
|---|
| 434 | if ( argc == 2 ) exit( EXIT_SUCCESS ); // if only the -v flag is specified, do not invoke gcc
|
|---|
| 435 |
|
|---|
| 436 | for ( int i = 0; args[i] != nullptr; i += 1 ) {
|
|---|
| 437 | cerr << args[i] << " ";
|
|---|
| 438 | } // for
|
|---|
| 439 | cerr << endl;
|
|---|
| 440 | } // if
|
|---|
| 441 |
|
|---|
| 442 | if ( ! nonoptarg ) {
|
|---|
| 443 | cerr << argv[0] << " error, no input files" << endl;
|
|---|
| 444 | exit( EXIT_FAILURE );
|
|---|
| 445 | } // if
|
|---|
| 446 |
|
|---|
| 447 | // execute the command and return the result
|
|---|
| 448 |
|
|---|
| 449 | execvp( args[0], (char *const *)args ); // should not return
|
|---|
| 450 | perror( "CFA Translator error: execvp" );
|
|---|
| 451 | exit( EXIT_FAILURE );
|
|---|
| 452 | } // main
|
|---|
| 453 |
|
|---|
| 454 | // Local Variables: //
|
|---|
| 455 | // tab-width: 4 //
|
|---|
| 456 | // mode: c++ //
|
|---|
| 457 | // compile-command: "make install" //
|
|---|
| 458 | // End: //
|
|---|
