| 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 : Mon Apr 10 21:16:00 2023
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| 13 | // Update Count : 476
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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 <climits> // PATH_MAX
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| 20 | #include <string> // STL version
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| 21 | #include <algorithm> // find
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| 22 |
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| 23 | #include <unistd.h> // execvp
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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 | #define xstr(s) str(s)
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| 38 | #define str(s) #s
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| 39 |
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| 40 | static string __CFA_FLAGPREFIX__( "__CFA_FLAG" ); // "__CFA_FLAG__=" suffix
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| 41 |
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| 42 | static void Putenv( char * argv[], string arg ) {
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| 43 | // environment variables must have unique names
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| 44 | static int flags = 0;
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| 45 |
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| 46 | // This allocation 'leaks' memory from the program to the execution
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| 47 | // environment, as putenv does not manage the storage of the string used
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| 48 | // as an environment variable. This leak is necessary to ensure the
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| 49 | // underlying C string is allocated long enough.
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| 50 | if ( putenv( (char *)( *new string( string( __CFA_FLAGPREFIX__ + to_string( flags++ ) + "__=" ) + arg ) ).c_str() ) ) {
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| 51 | cerr << argv[0] << " error, cannot set environment variable." << endl;
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| 52 | exit( EXIT_FAILURE );
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| 53 | } // if
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| 54 | } // Putenv
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| 55 |
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| 56 | static bool prefix( const string & arg, const string & pre ) { // check if string has prefix
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| 57 | return arg.substr( 0, pre.size() ) == pre;
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| 58 | } // prefix
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| 59 |
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| 60 | // check if string has suffix
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| 61 | static bool suffix( const string & arg ) {
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| 62 | enum { NumSuffixes = 3 };
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| 63 | static const string suffixes[NumSuffixes] = { "cfa", "hfa", "ifa" };
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| 64 |
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| 65 | size_t dot = arg.find_last_of( "." );
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| 66 | if ( dot == string::npos ) return false;
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| 67 | const string * end = suffixes + NumSuffixes;
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| 68 | return std::find( suffixes, end, arg.substr( dot + 1 ) ) != end;
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| 69 | } // suffix
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| 70 |
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| 71 | static inline bool dirExists( const string & path ) { // check if directory exists
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| 72 | struct stat info;
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| 73 | if ( stat( path.c_str(), &info ) != 0 ) return false;
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| 74 | return (info.st_mode & S_IFDIR) != 0;
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| 75 | } // dirExists
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| 76 |
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| 77 | static inline string dir(const string & path) {
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| 78 | return path.substr(0, path.find_last_of('/'));
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| 79 | } // dir
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| 80 |
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| 81 | // Different path modes
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| 82 | enum PathMode {
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| 83 | Installed, // cfa is installed, use prefix
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| 84 | BuildTree, // cfa is in the tree, use source and build tree
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| 85 | Distributed // cfa is distributed, use build tree for includes and executable directory for .cfs
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| 86 | };
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| 87 |
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| 88 | // Get path mode from /proc
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| 89 | PathMode FromProc() {
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| 90 | std::string abspath;
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| 91 | abspath.resize(PATH_MAX);
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| 92 |
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| 93 | // get executable path from /proc/self/exe
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| 94 | ssize_t size = readlink("/proc/self/exe", const_cast<char*>(abspath.c_str()), abspath.size());
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| 95 | if ( size <= 0 ) {
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| 96 | std::cerr << "Error could not evaluate absolute path from /proc/self/exe" << std::endl;
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| 97 | std::cerr << "Failed with " << std::strerror(errno) << std::endl;
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| 98 | std::exit(1);
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| 99 | } // if
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| 100 |
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| 101 | // Trim extra characters
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| 102 | abspath.resize(size);
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| 103 |
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| 104 | // Are we installed
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| 105 | if ( abspath.rfind(CFA_BINDIR, 0) == 0 ) { return Installed; }
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| 106 |
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| 107 | // Is this the build tree
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| 108 | if ( abspath.rfind(TOP_BUILDDIR, 0 ) == 0 ) { return BuildTree; }
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| 109 |
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| 110 | // Does this look like distcc
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| 111 | if ( abspath.find( "/.cfadistcc/" ) != std::string::npos ) { return Distributed; }
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| 112 |
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| 113 | // None of the above? Give up since we don't know where the prelude or include directories are
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| 114 | std::cerr << "Cannot find required files from excutable path " << abspath << std::endl;
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| 115 | std::exit(1);
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| 116 | }
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| 117 |
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| 118 |
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| 119 | int main( int argc, char * argv[] ) {
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| 120 | string Version( CFA_VERSION_LONG ); // current version number from CONFIG
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| 121 | string Major( xstr( CFA_VERSION_MAJOR ) ), Minor( xstr( CFA_VERSION_MINOR ) ), Patch( xstr( CFA_VERSION_PATCH ) );
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| 122 |
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| 123 | string installincdir( CFA_INCDIR ); // fixed location of include files
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| 124 | string installlibdir( CFA_LIBDIR ); // fixed location of cc1 and cfa-cpp commands when installed
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| 125 | string srcdriverdir ( TOP_BUILDDIR "driver"); // fixed location of cc1 and cfa-cpp commands when in tree
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| 126 |
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| 127 | string heading; // banner printed at start of cfa compilation
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| 128 | string arg; // current command-line argument during command-line parsing
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| 129 | string bprefix; // path where gcc looks for compiler steps
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| 130 | string langstd; // language standard
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| 131 |
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| 132 | string compiler_path( CFA_BACKEND_CC ); // path/name of C compiler
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| 133 | string compiler_name; // name of C compiler
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| 134 |
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| 135 | bool x_flag = false; // -x flag
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| 136 | bool nonoptarg = false; // no non-option arguments specified, i.e., no file names
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| 137 | bool link = true; // link stage occurring
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| 138 | bool verbose = false; // -v flag
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| 139 | bool quiet = false; // -quiet flag
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| 140 | bool debug = true; // -debug flag
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| 141 | bool nolib = false; // -nolib flag
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| 142 | bool help = false; // -help flag
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| 143 | bool CFA_flag = false; // -CFA flag
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| 144 | bool cpp_flag = false; // -E or -M flag, preprocessor only
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| 145 | bool std_flag = false; // -std= flag
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| 146 | bool noincstd_flag = false; // -no-include-stdhdr= flag
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| 147 | bool debugging __attribute(( unused )) = false; // -g flag
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| 148 | bool m32 = false; // -m32 flag
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| 149 | bool m64 = false; // -m64 flag
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| 150 | bool compiling_libs = false;
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| 151 | int o_file = 0; // -o filename position
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| 152 |
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| 153 | PathMode path = FromProc();
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| 154 |
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| 155 | const char * args[argc + 100]; // cfa command line values, plus some space for additional flags
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| 156 | int sargs = 1; // starting location for arguments in args list
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| 157 | int nargs = sargs; // number of arguments in args list; 0 => command name
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| 158 |
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| 159 | const char * libs[argc + 20]; // non-user libraries must come separately, plus some added libraries and flags
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| 160 | int nlibs = 0;
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| 161 |
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| 162 | #ifdef __DEBUG_H__
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| 163 | cerr << "CFA:" << endl;
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| 164 | for ( int i = 1; i < argc; i += 1 ) {
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| 165 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
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| 166 | } // for
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| 167 | #endif // __DEBUG_H__
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| 168 |
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| 169 | // process command-line arguments
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| 170 |
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| 171 | for ( int i = 1; i < argc; i += 1 ) {
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| 172 | arg = argv[i]; // convert to string value
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| 173 | if ( prefix( arg, "-" ) ) {
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| 174 | // pass through arguments
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| 175 |
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| 176 | if ( arg == "-Xlinker" || arg == "-o" ) {
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| 177 | args[nargs++] = argv[i]; // pass flag along
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| 178 | i += 1;
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| 179 | if ( i == argc ) continue; // next argument available ?
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| 180 | args[nargs++] = argv[i]; // pass argument along
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| 181 | if ( arg == "-o" ) o_file = i; // remember file
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| 182 |
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| 183 | // CFA specific arguments
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| 184 |
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| 185 | } else if ( strncmp(arg.c_str(), "-XCFA", 5) == 0 ) { // CFA pass through
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| 186 | if ( arg.size() == 5 ) {
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| 187 | i += 1;
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| 188 | if ( i == argc ) continue; // next argument available ?
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| 189 | Putenv( argv, argv[i] ); // make available for cc1
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| 190 | } else if ( arg[5] == ',' ) { // CFA specific arguments
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| 191 | string xcfargs = arg.substr( 6 ) + ","; // add sentinel
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| 192 | for ( ;; ) {
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| 193 | size_t posn = xcfargs.find_first_of( "," ); // find separator
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| 194 | if ( posn == string::npos ) break; // any characters left ?
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| 195 | string xcfarg = xcfargs.substr( 0, posn ); // remove XCFA argument
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| 196 | Putenv( argv, xcfarg ); // make available for cc1
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| 197 | xcfargs.erase( 0, posn + 1 ); // remove first argument and comma
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| 198 | } // for
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| 199 | } else { // CFA specific arguments
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| 200 | assert( false ); // this does not make sense
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| 201 | args[nargs++] = argv[i];
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| 202 | } // if
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| 203 | } else if ( arg == "-CFA" ) {
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| 204 | CFA_flag = true; // strip -CFA flag
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| 205 | link = false;
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| 206 | args[nargs++] = "-fsyntax-only"; // stop after stage 2
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| 207 | } else if ( arg == "-debug" ) {
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| 208 | debug = true; // strip debug flag
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| 209 | } else if ( arg == "-nodebug" ) {
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| 210 | debug = false; // strip nodebug flag
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| 211 | } else if ( arg == "-quiet" ) {
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| 212 | quiet = true; // strip quiet flag
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| 213 | } else if ( arg == "-noquiet" ) {
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| 214 | quiet = false; // strip noquiet flag
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| 215 | } else if ( arg == "-invariant" ) {
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| 216 | Putenv( argv, "-" + arg );
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| 217 | } else if ( arg == "--invariant" ) {
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| 218 | Putenv( argv, arg );
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| 219 | } else if ( arg == "-no-include-stdhdr" ) {
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| 220 | noincstd_flag = true; // strip no-include-stdhdr flag
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| 221 | } else if ( arg == "-nolib" ) {
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| 222 | nolib = true; // strip nolib flag
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| 223 | } else if ( arg == "-help" ) {
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| 224 | help = true; // strip help flag
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| 225 | } else if ( arg == "-nohelp" ) {
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| 226 | help = false; // strip nohelp flag
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| 227 | } else if ( arg == "-cfalib") {
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| 228 | compiling_libs = true;
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| 229 | } else if ( arg == "-compiler" ) {
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| 230 | // use the user specified compiler
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| 231 | i += 1;
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| 232 | if ( i == argc ) continue; // next argument available ?
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| 233 | compiler_path = argv[i];
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| 234 | Putenv( argv, arg + "=" + argv[i] );
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| 235 |
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| 236 | // C specific arguments
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| 237 |
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| 238 | } else if ( arg == "-v" ) {
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| 239 | verbose = true; // verbosity required
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| 240 | args[nargs++] = argv[i]; // pass flag along
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| 241 | } else if ( arg == "-g" ) {
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| 242 | debugging = true; // symbolic debugging required
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| 243 | args[nargs++] = argv[i]; // pass flag along
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| 244 | } else if ( arg == "-save-temps" || arg == "--save-temps" ) {
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| 245 | args[nargs++] = argv[i]; // pass flag along
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| 246 | Putenv( argv, arg ); // save cfa-cpp output
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| 247 | } else if ( prefix( arg, "-x" ) ) { // file suffix ?
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| 248 | string lang;
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| 249 | args[nargs++] = argv[i]; // pass flag along
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| 250 | if ( arg.length() == 2 ) { // separate argument ?
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| 251 | i += 1;
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| 252 | if ( i == argc ) continue; // next argument available ?
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| 253 | lang = argv[i];
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| 254 | args[nargs++] = argv[i]; // pass argument along
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| 255 | } else {
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| 256 | lang = arg.substr( 2 );
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| 257 | } // if
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| 258 | if ( x_flag ) {
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| 259 | cerr << argv[0] << " warning, only one -x flag per compile, ignoring subsequent flag." << endl;
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| 260 | } else {
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| 261 | x_flag = true;
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| 262 | Putenv( argv, string( "-x=" ) + lang );
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| 263 | } // if
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| 264 | } else if ( prefix( arg, "-std=" ) || prefix( arg, "--std=" ) ) {
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| 265 | std_flag = true; // -std=XX provided
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| 266 | args[nargs++] = argv[i]; // pass flag along
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| 267 | } else if ( arg == "-w" ) {
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| 268 | args[nargs++] = argv[i]; // pass flag along
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| 269 | Putenv( argv, arg );
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| 270 | } else if ( prefix( arg, "-W" ) ) { // check before next tests
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| 271 | if ( arg == "-Werror" || arg == "-Wall" ) {
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| 272 | args[nargs++] = argv[i]; // pass flag along
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| 273 | Putenv( argv, argv[i] );
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| 274 | } else {
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| 275 | unsigned int adv = prefix( arg, "-Wno-" ) ? 5 : 2;
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| 276 | args[nargs] = argv[i]; // conditionally pass argument along
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| 277 | const char * warning = argv[i] + adv; // extract warning
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| 278 | if ( SemanticWarning_Exist( warning ) ) { // replace the argument for cfa-cpp
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| 279 | Putenv( argv, arg );
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| 280 | } // if
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| 281 | nargs += 1;
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| 282 | } // if
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| 283 | } else if ( prefix( arg, "-B" ) ) {
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| 284 | bprefix = arg.substr(2); // strip -B flag
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| 285 | } else if ( arg == "-c" || arg == "-S" || arg == "-E" || arg == "-M" || arg == "-MM" ) {
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| 286 | args[nargs++] = argv[i]; // pass flag along
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| 287 | if ( arg == "-E" || arg == "-M" || arg == "-MM" ) {
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| 288 | cpp_flag = true; // cpp only
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| 289 | } // if
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| 290 | link = false; // no linkage required
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| 291 | } else if ( arg == "-D" || arg == "-U" || arg == "-I" || arg == "-MF" || arg == "-MT" || arg == "-MQ" ||
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| 292 | arg == "-include" || arg == "-imacros" || arg == "-idirafter" || arg == "-iprefix" ||
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| 293 | arg == "-iwithprefix" || arg == "-iwithprefixbefore" || arg == "-isystem" || arg == "-isysroot" ) {
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| 294 | args[nargs++] = argv[i]; // pass flag along
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| 295 | i += 1;
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| 296 | args[nargs++] = argv[i]; // pass argument along
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| 297 | } else if ( arg[1] == 'l' ) {
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| 298 | // if the user specifies a library, load it after user code
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| 299 | libs[nlibs++] = argv[i];
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| 300 | } else if ( arg == "-m32" ) {
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| 301 | m32 = true;
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| 302 | m64 = false;
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| 303 | args[nargs++] = argv[i];
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| 304 | } else if ( arg == "-m64" ) {
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| 305 | m64 = true;
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| 306 | m32 = false;
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| 307 | args[nargs++] = argv[i];
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| 308 | } else {
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| 309 | // concatenate any other arguments
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| 310 | args[nargs++] = argv[i];
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| 311 | } // if
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| 312 | } else {
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| 313 | bool cfa = suffix( arg ); // check suffix
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| 314 | if ( ! x_flag && cfa ) { // no explicit suffix and cfa suffix ?
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| 315 | args[nargs++] = "-x";
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| 316 | args[nargs++] = "c";
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| 317 | } // if
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| 318 | args[nargs++] = argv[i]; // concatenate files
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| 319 | if ( ! x_flag && cfa ) { // no explicit suffix and cfa suffix ?
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| 320 | args[nargs++] = "-x";
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| 321 | args[nargs++] = "none";
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| 322 | } // if
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| 323 | nonoptarg = true;
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| 324 | } // if
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| 325 | } // for
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| 326 |
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| 327 | #ifdef __x86_64__
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| 328 | args[nargs++] = "-mcx16"; // allow double-wide CAS
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| 329 | #endif // __x86_64__
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| 330 |
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| 331 | #ifdef __DEBUG_H__
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| 332 | cerr << "args:";
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| 333 | for ( int i = 1; i < nargs; i += 1 ) {
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| 334 | cerr << " " << args[i];
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| 335 | } // for
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| 336 | cerr << endl;
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| 337 | #endif // __DEBUG_H__
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| 338 |
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| 339 | // -E flag stops at cc1 stage 1, so cfa-cpp in cc1 stage 2 is never executed.
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| 340 | if ( cpp_flag && CFA_flag ) {
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| 341 | CFA_flag = false;
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| 342 | cerr << argv[0] << " warning, both -E and -CFA flags specified, using -E and ignoring -CFA." << endl;
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| 343 | } // if
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| 344 |
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| 345 | // add the CFA include-library paths, which allow direct access to header files without directory qualification
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| 346 | string libbase;
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| 347 | switch(path) {
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| 348 | case Installed:
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| 349 | args[nargs++] = "-I" CFA_INCDIR;
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| 350 | // do not use during build
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| 351 | if ( ! noincstd_flag ) {
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| 352 | args[nargs++] = "-I" CFA_INCDIR "stdhdr";
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| 353 | } // if
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| 354 | args[nargs++] = "-I" CFA_INCDIR "concurrency";
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| 355 | args[nargs++] = "-I" CFA_INCDIR "containers";
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| 356 | libbase = CFA_LIBDIR;
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| 357 | break;
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| 358 | case BuildTree:
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| 359 | case Distributed:
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| 360 | args[nargs++] = "-I" TOP_SRCDIR "libcfa/src";
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| 361 | // do not use during build
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| 362 | if ( ! noincstd_flag ) {
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| 363 | args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/stdhdr";
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| 364 | } // if
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| 365 | args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/concurrency";
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| 366 | args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/containers";
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| 367 |
|
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| 368 | libbase = TOP_BUILDDIR "libcfa/";
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| 369 |
|
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| 370 | break;
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| 371 | } // if
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| 372 |
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| 373 | // add stdbool to get defines for bool/true/false
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| 374 | args[nargs++] = "-imacros";
|
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| 375 | args[nargs++] = "stdbool.h";
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| 376 |
|
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| 377 | if ( compiling_libs ) {
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| 378 | Putenv( argv, "-t" );
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| 379 | } // if
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| 380 |
|
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| 381 | string arch( m32 ? CFA_32_CPU : (m64 ? CFA_64_CPU : CFA_DEFAULT_CPU) );
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| 382 | if ( ! m32 && ! m64 ) {
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| 383 | if ( arch == "x86" ) {
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| 384 | args[nargs++] = "-m32";
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| 385 | } else if ( arch == "x64" ) {
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| 386 | args[nargs++] = "-m64";
|
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| 387 | } // if
|
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| 388 | } // if
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| 389 |
|
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| 390 | const char * config = nolib ? "nolib" : (debug ? "debug": "nodebug");
|
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| 391 | string libdir = libbase + arch + "-" + config;
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| 392 |
|
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| 393 | if ( path != Distributed ) {
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| 394 | if ( ! nolib && ! dirExists( libdir ) ) {
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| 395 | cerr << argv[0] << " internal error, configuration " << config << " not installed." << endl;
|
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| 396 | cerr << "Was looking for " << libdir << endl;
|
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| 397 | for(int i = 1; i < argc; i++) {
|
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| 398 | cerr << argv[i] << " ";
|
|---|
| 399 | }
|
|---|
| 400 | cerr << endl;
|
|---|
| 401 | libdir = libbase + arch + "-" + "nolib";
|
|---|
| 402 | } // if
|
|---|
| 403 |
|
|---|
| 404 | if ( ! dirExists( libdir ) ) {
|
|---|
| 405 | cerr << argv[0] << " internal error, cannot find prelude directory." << endl;
|
|---|
| 406 | cerr << "Was looking for " << libdir << endl;
|
|---|
| 407 | exit( EXIT_FAILURE );
|
|---|
| 408 | } // if
|
|---|
| 409 | } // if
|
|---|
| 410 |
|
|---|
| 411 | string preludedir;
|
|---|
| 412 | switch(path) {
|
|---|
| 413 | case Installed : preludedir = libdir; break;
|
|---|
| 414 | case BuildTree : preludedir = libdir + "/prelude"; break;
|
|---|
| 415 | case Distributed : preludedir = dir(argv[0]); break;
|
|---|
| 416 | } // switch
|
|---|
| 417 |
|
|---|
| 418 | Putenv( argv, "--prelude-dir=" + preludedir );
|
|---|
| 419 | args[nargs++] = "-include";
|
|---|
| 420 | args[nargs++] = (*new string(preludedir + "/defines.hfa")).c_str();
|
|---|
| 421 |
|
|---|
| 422 | for ( int i = 0; i < nlibs; i += 1 ) { // copy non-user libraries after all user libraries
|
|---|
| 423 | args[nargs++] = libs[i];
|
|---|
| 424 | } // for
|
|---|
| 425 |
|
|---|
| 426 | if ( link ) {
|
|---|
| 427 | args[nargs++] = "-Xlinker";
|
|---|
| 428 | args[nargs++] = "--undefined=__cfaabi_dbg_bits_write";
|
|---|
| 429 | args[nargs++] = "-Xlinker";
|
|---|
| 430 | args[nargs++] = "--undefined=__cfaabi_interpose_startup";
|
|---|
| 431 | args[nargs++] = "-Xlinker";
|
|---|
| 432 | args[nargs++] = "--undefined=__cfaabi_appready_startup";
|
|---|
| 433 | args[nargs++] = "-z";
|
|---|
| 434 | args[nargs++] = "execstack";
|
|---|
| 435 |
|
|---|
| 436 | // include the cfa library in case it is needed
|
|---|
| 437 | args[nargs++] = ( *new string( string("-L" ) + libdir + (path != Installed ? "/src/.libs" : "")) ).c_str();
|
|---|
| 438 | args[nargs++] = ( *new string( string("-Wl,-rpath," ) + libdir + (path != Installed ? "/src/.libs" : "")) ).c_str();
|
|---|
| 439 | args[nargs++] = "-Wl,--push-state,--as-needed";
|
|---|
| 440 | args[nargs++] = "-lcfathread";
|
|---|
| 441 | args[nargs++] = "-Wl,--pop-state";
|
|---|
| 442 | args[nargs++] = "-Wl,--push-state,--no-as-needed";
|
|---|
| 443 | args[nargs++] = "-lcfa";
|
|---|
| 444 | args[nargs++] = "-Wl,--pop-state";
|
|---|
| 445 | args[nargs++] = "-pthread";
|
|---|
| 446 | #if defined( __x86_64__ ) || defined( __ARM_ARCH )
|
|---|
| 447 | args[nargs++] = "-latomic"; // allow double-wide CAS
|
|---|
| 448 | #endif // __x86_64__
|
|---|
| 449 | args[nargs++] = "-ldl";
|
|---|
| 450 | args[nargs++] = "-lm";
|
|---|
| 451 | } // if
|
|---|
| 452 |
|
|---|
| 453 | args[nargs++] = "-fexceptions"; // add exception flags (unconditionally)
|
|---|
| 454 | args[nargs++] = "-D_GNU_SOURCE"; // force gnu libraries
|
|---|
| 455 |
|
|---|
| 456 | // add flags based on the type of compile
|
|---|
| 457 |
|
|---|
| 458 | args[nargs++] = ( *new string( string("-D__CFA_MAJOR__=") + Major ) ).c_str();
|
|---|
| 459 | args[nargs++] = ( *new string( string("-D__CFA_MINOR__=") + Minor ) ).c_str();
|
|---|
| 460 | args[nargs++] = ( *new string( string("-D__CFA_PATCH__=") + Patch ) ).c_str();
|
|---|
| 461 | args[nargs++] = "-D__CFA__";
|
|---|
| 462 | args[nargs++] = "-D__CFORALL__";
|
|---|
| 463 | args[nargs++] = "-D__cforall";
|
|---|
| 464 |
|
|---|
| 465 | if ( cpp_flag ) {
|
|---|
| 466 | args[nargs++] = "-D__CPP__";
|
|---|
| 467 | } // if
|
|---|
| 468 |
|
|---|
| 469 | if ( CFA_flag ) {
|
|---|
| 470 | Putenv( argv, "-N" );
|
|---|
| 471 | Putenv( argv, "-CFA" );
|
|---|
| 472 | // -CFA implies cc1 stage 2, but gcc does not pass the -o file to this stage because it believe the file is for
|
|---|
| 473 | // the linker. Hence, the -o file is explicit passed to cc1 stage 2 and used as cfa-cpp's output file.
|
|---|
| 474 | if ( o_file ) Putenv( argv, string( "-o=" ) + argv[o_file] );
|
|---|
| 475 | } else {
|
|---|
| 476 | Putenv( argv, "-L" );
|
|---|
| 477 | } // if
|
|---|
| 478 |
|
|---|
| 479 | if ( debug ) {
|
|---|
| 480 | heading += " (debug)";
|
|---|
| 481 | args[nargs++] = "-D__CFA_DEBUG__";
|
|---|
| 482 | } else {
|
|---|
| 483 | heading += " (no debug)";
|
|---|
| 484 | } // if
|
|---|
| 485 |
|
|---|
| 486 | if ( bprefix.length() == 0 ) {
|
|---|
| 487 | switch(path) {
|
|---|
| 488 | case Installed : bprefix = installlibdir; break;
|
|---|
| 489 | case BuildTree : bprefix = srcdriverdir ; break;
|
|---|
| 490 | case Distributed : bprefix = dir(argv[0]) ; break;
|
|---|
| 491 | } // switch
|
|---|
| 492 | } // if
|
|---|
| 493 | if ( bprefix[bprefix.length() - 1] != '/' ) bprefix += '/';
|
|---|
| 494 | Putenv( argv, string("-B=") + bprefix );
|
|---|
| 495 |
|
|---|
| 496 | args[nargs++] = "-Xlinker"; // used by backtrace
|
|---|
| 497 | args[nargs++] = "-export-dynamic";
|
|---|
| 498 |
|
|---|
| 499 | // execute the compilation command
|
|---|
| 500 |
|
|---|
| 501 | args[0] = compiler_path.c_str(); // set compiler command for exec
|
|---|
| 502 | // find actual name of the compiler independent of the path to it
|
|---|
| 503 | int p = compiler_path.find_last_of( '/' ); // scan r -> l for first '/'
|
|---|
| 504 | if ( p == -1 ) {
|
|---|
| 505 | compiler_name = compiler_path;
|
|---|
| 506 | } else {
|
|---|
| 507 | compiler_name = *new string( compiler_path.substr( p + 1 ) );
|
|---|
| 508 | } // if
|
|---|
| 509 |
|
|---|
| 510 | if ( prefix( compiler_name, "gcc" ) ) { // allow suffix on gcc name
|
|---|
| 511 | args[nargs++] = "-no-integrated-cpp";
|
|---|
| 512 | args[nargs++] = "-Wno-deprecated";
|
|---|
| 513 | args[nargs++] = "-Wno-strict-aliasing"; // casting from one type to another
|
|---|
| 514 | #ifdef HAVE_CAST_FUNCTION_TYPE
|
|---|
| 515 | args[nargs++] = "-Wno-cast-function-type";
|
|---|
| 516 | #endif // HAVE_CAST_FUNCTION_TYPE
|
|---|
| 517 | if ( ! std_flag && ! x_flag ) {
|
|---|
| 518 | args[nargs++] = "-std=gnu11"; // default c11, if none specified
|
|---|
| 519 | } // if
|
|---|
| 520 | args[nargs++] = "-fgnu89-inline";
|
|---|
| 521 | args[nargs++] = "-D__int8_t_defined"; // prevent gcc type-size attributes
|
|---|
| 522 | args[nargs++] = ( *new string( string("-B") + bprefix ) ).c_str();
|
|---|
| 523 | } else {
|
|---|
| 524 | cerr << argv[0] << " error, compiler \"" << compiler_name << "\" unsupported." << endl;
|
|---|
| 525 | exit( EXIT_FAILURE );
|
|---|
| 526 | } // if
|
|---|
| 527 |
|
|---|
| 528 | args[nargs] = nullptr; // terminate
|
|---|
| 529 |
|
|---|
| 530 | #ifdef __DEBUG_H__
|
|---|
| 531 | cerr << "nargs: " << nargs << endl;
|
|---|
| 532 | cerr << "args:" << endl;
|
|---|
| 533 | for ( int i = 0; args[i] != nullptr; i += 1 ) {
|
|---|
| 534 | cerr << " \"" << args[i] << "\"" << endl;
|
|---|
| 535 | } // for
|
|---|
| 536 | cerr << endl;
|
|---|
| 537 | #endif // __DEBUG_H__
|
|---|
| 538 |
|
|---|
| 539 | if ( ! quiet ) {
|
|---|
| 540 | cerr << "CFA " << "Version " << Version << heading << endl;
|
|---|
| 541 | if ( help ) {
|
|---|
| 542 | cerr <<
|
|---|
| 543 | "-debug\t\t\t: use cfa runtime with debug checking" << endl <<
|
|---|
| 544 | "-help\t\t\t: print this help message" << endl <<
|
|---|
| 545 | "-quiet\t\t\t: print no messages from the cfa command" << endl <<
|
|---|
| 546 | "-CFA\t\t\t: run the cpp preprocessor and the cfa-cpp translator" << endl <<
|
|---|
| 547 | "-XCFA -cfa-cpp-flag\t: pass next flag as-is to the cfa-cpp translator" << endl <<
|
|---|
| 548 | "...\t\t\t: any other " << compiler_name << " flags" << endl;
|
|---|
| 549 | } // if
|
|---|
| 550 | } // if
|
|---|
| 551 |
|
|---|
| 552 | if ( verbose ) {
|
|---|
| 553 | if ( argc == 2 ) exit( EXIT_SUCCESS ); // if only the -v flag is specified, do not invoke gcc
|
|---|
| 554 |
|
|---|
| 555 | for ( int i = 0; args[i] != nullptr; i += 1 ) {
|
|---|
| 556 | cerr << args[i] << " ";
|
|---|
| 557 | } // for
|
|---|
| 558 | cerr << endl;
|
|---|
| 559 | } // if
|
|---|
| 560 |
|
|---|
| 561 | if ( ! nonoptarg ) {
|
|---|
| 562 | cerr << argv[0] << " error, no input files" << endl;
|
|---|
| 563 | exit( EXIT_FAILURE );
|
|---|
| 564 | } // if
|
|---|
| 565 |
|
|---|
| 566 | // execute the command and return the result
|
|---|
| 567 |
|
|---|
| 568 | execvp( args[0], (char * const *)args ); // should not return
|
|---|
| 569 | perror( "CFA Translator error: execvp" );
|
|---|
| 570 | exit( EXIT_FAILURE );
|
|---|
| 571 | } // main
|
|---|
| 572 |
|
|---|
| 573 | // Local Variables: //
|
|---|
| 574 | // tab-width: 4 //
|
|---|
| 575 | // mode: c++ //
|
|---|
| 576 | // compile-command: "make install" //
|
|---|
| 577 | // End: //
|
|---|
