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source: driver/cfa.cc@ 9082d7e8

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Last change on this file since 9082d7e8 was f5f2768, checked in by Peter A. Buhr <pabuhr@…>, 3 years ago
make _GNU_SOURCE default, change IO to use SOCKADDR_ARG and CONST_SOCKADDR_ARG, move sys/socket.h to first include because of anonymous naming problem
Property mode set to `100644`
File size: 19.6 KB

Rev	Line
[b87a5ed]	1	//
	2	// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
	3	//
	4	// The contents of this file are covered under the licence agreement in the
	5	// file "LICENCE" distributed with Cforall.
	6	//
[76c7f65e]	7	// cfa.cc --
[b87a5ed]	8	//
[51b73452]	9	// Author : Peter A. Buhr
	10	// Created On : Tue Aug 20 13:44:49 2002
[201aeb9]	11	// Last Modified By : Peter A. Buhr
[f5f2768]	12	// Last Modified On : Tue Feb 14 22:46:38 2023
	13	// Update Count : 470
[b87a5ed]	14	//
[51b73452]	15
	16	#include <iostream>
[7f51b9d]	17	#include <cstdio> // perror
	18	#include <cstdlib> // putenv, exit
	19	#include <climits> // PATH_MAX
	20	#include <string> // STL version
	21	#include <algorithm> // find
[51b73452]	22
[36de20d]	23	#include <unistd.h> // execvp
[37fe352]	24	#include <sys/types.h>
	25	#include <sys/stat.h>
	26
[44bca7f]	27	#include "Common/SemanticError.h"
[b87a5ed]	28	#include "config.h" // configure info
[51b73452]	29
	30	using std::cerr;
	31	using std::endl;
	32	using std::string;
[47a8d17]	33	using std::to_string;
[51b73452]	34
[36de20d]	35	//#define __DEBUG_H__
[51b73452]	36
[7f51b9d]	37	#define xstr(s) str(s)
	38	#define str(s) #s
	39
[36de20d]	40	static string __CFA_FLAGPREFIX__( "__CFA_FLAG" ); // "__CFA_FLAG__=" suffix
[51b73452]	41
[7f51b9d]	42	static void Putenv( char * argv[], string arg ) {
[c2051e10]	43	// environment variables must have unique names
	44	static int flags = 0;
[2c60af75]	45
[0bf5340]	46	if ( putenv( (char )( new string( string( __CFA_FLAGPREFIX__ + to_string( flags++ ) + "__=" ) + arg ) ).c_str() ) ) {
[2c60af75]	47	cerr << argv[0] << " error, cannot set environment variable." << endl;
	48	exit( EXIT_FAILURE );
	49	} // if
	50	} // Putenv
	51
[7f51b9d]	52	static bool prefix( const string & arg, const string & pre ) { // check if string has prefix
[b87a5ed]	53	return arg.substr( 0, pre.size() ) == pre;
[51b73452]	54	} // prefix
	55
[158b026]	56	// check if string has suffix
[7f51b9d]	57	static bool suffix( const string & arg ) {
[8c63bb4]	58	enum { NumSuffixes = 3 };
	59	static const string suffixes[NumSuffixes] = { "cfa", "hfa", "ifa" };
[dffaeac]	60
	61	size_t dot = arg.find_last_of( "." );
	62	if ( dot == string::npos ) return false;
[8c63bb4]	63	const string * end = suffixes + NumSuffixes;
	64	return std::find( suffixes, end, arg.substr( dot + 1 ) ) != end;
[dffaeac]	65	} // suffix
[51b73452]	66
[2c60af75]	67	static inline bool dirExists( const string & path ) { // check if directory exists
[37fe352]	68	struct stat info;
[2c60af75]	69	if ( stat( path.c_str(), &info ) != 0 ) return false;
[b544afa]	70	return (info.st_mode & S_IFDIR) != 0;
[2c60af75]	71	} // dirExists
[37fe352]	72
[bbfd0e0]	73	static inline string dir(const string & path) {
	74	return path.substr(0, path.find_last_of('/'));
[7f51b9d]	75	} // dir
[bbfd0e0]	76
[158b026]	77	// Different path modes
	78	enum PathMode {
	79	Installed, // cfa is installed, use prefix
	80	BuildTree, // cfa is in the tree, use source and build tree
	81	Distributed // cfa is distributed, use build tree for includes and executable directory for .cfs
	82	};
	83
	84	// Get path mode from /proc
	85	PathMode FromProc() {
	86	std::string abspath;
	87	abspath.resize(PATH_MAX);
	88
	89	// get executable path from /proc/self/exe
	90	ssize_t size = readlink("/proc/self/exe", const_cast<char*>(abspath.c_str()), abspath.size());
[fcd1a469]	91	if ( size <= 0 ) {
[158b026]	92	std::cerr << "Error could not evaluate absolute path from /proc/self/exe" << std::endl;
	93	std::cerr << "Failed with " << std::strerror(errno) << std::endl;
	94	std::exit(1);
[fcd1a469]	95	} // if
[158b026]	96
	97	// Trim extra characters
	98	abspath.resize(size);
	99
	100	// Are we installed
[fcd1a469]	101	if ( abspath.rfind(CFA_BINDIR, 0) == 0 ) { return Installed; }
[158b026]	102
	103	// Is this the build tree
[fcd1a469]	104	if ( abspath.rfind(TOP_BUILDDIR, 0 ) == 0 ) { return BuildTree; }
[158b026]	105
	106	// Does this look like distcc
[fcd1a469]	107	if ( abspath.find( "/.cfadistcc/" ) != std::string::npos ) { return Distributed; }
[158b026]	108
	109	// None of the above? Give up since we don't know where the prelude or include directories are
	110	std::cerr << "Cannot find required files from excutable path " << abspath << std::endl;
	111	std::exit(1);
	112	}
	113
[51b73452]	114
[8c63bb4]	115	int main( int argc, char * argv[] ) {
[4b1afb6]	116	string Version( CFA_VERSION_LONG ); // current version number from CONFIG
[2c60af75]	117	string Major( xstr( CFA_VERSION_MAJOR ) ), Minor( xstr( CFA_VERSION_MINOR ) ), Patch( xstr( CFA_VERSION_PATCH ) );
[51b73452]	118
[d6f4488]	119	string installincdir( CFA_INCDIR ); // fixed location of include files
	120	string installlibdir( CFA_LIBDIR ); // fixed location of cc1 and cfa-cpp commands when installed
	121	string srcdriverdir ( TOP_BUILDDIR "driver"); // fixed location of cc1 and cfa-cpp commands when in tree
[51b73452]	122
[b87a5ed]	123	string heading; // banner printed at start of cfa compilation
	124	string arg; // current command-line argument during command-line parsing
[b544afa]	125	string bprefix; // path where gcc looks for compiler steps
[b87a5ed]	126	string langstd; // language standard
[51b73452]	127
[e24f13a]	128	string compiler_path( CFA_BACKEND_CC ); // path/name of C compiler
[b87a5ed]	129	string compiler_name; // name of C compiler
[51b73452]	130
[4f5a8a2]	131	bool x_flag = false; // -x flag
[bbb1b35]	132	bool nonoptarg = false; // no non-option arguments specified, i.e., no file names
	133	bool link = true; // link stage occurring
[b87a5ed]	134	bool verbose = false; // -v flag
[8c63bb4]	135	bool quiet = false; // -quiet flag
	136	bool debug = true; // -debug flag
	137	bool nolib = false; // -nolib flag
	138	bool help = false; // -help flag
[b87a5ed]	139	bool CFA_flag = false; // -CFA flag
	140	bool cpp_flag = false; // -E or -M flag, preprocessor only
[de62360d]	141	bool std_flag = false; // -std= flag
[d746bc8]	142	bool noincstd_flag = false; // -no-include-stdhdr= flag
[6e4b913]	143	bool debugging __attribute(( unused )) = false; // -g flag
[8c63bb4]	144	bool m32 = false; // -m32 flag
	145	bool m64 = false; // -m64 flag
[1ee048fd]	146	bool compiling_libs = false;
[2c60af75]	147	int o_file = 0; // -o filename position
[51b73452]	148
[158b026]	149	PathMode path = FromProc();
	150
[36de20d]	151	const char * args[argc + 100]; // cfa command line values, plus some space for additional flags
[b87a5ed]	152	int sargs = 1; // starting location for arguments in args list
	153	int nargs = sargs; // number of arguments in args list; 0 => command name
[51b73452]	154
[36de20d]	155	const char * libs[argc + 20]; // non-user libraries must come separately, plus some added libraries and flags
[b87a5ed]	156	int nlibs = 0;
[51b73452]	157
[dffaeac]	158	#ifdef __DEBUG_H__
[b87a5ed]	159	cerr << "CFA:" << endl;
[bec4d24]	160	for ( int i = 1; i < argc; i += 1 ) {
	161	cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
	162	} // for
[dffaeac]	163	#endif // __DEBUG_H__
[51b73452]	164
[b87a5ed]	165	// process command-line arguments
[51b73452]	166
[b87a5ed]	167	for ( int i = 1; i < argc; i += 1 ) {
	168	arg = argv[i]; // convert to string value
	169	if ( prefix( arg, "-" ) ) {
	170	// pass through arguments
	171
	172	if ( arg == "-Xlinker" \|\| arg == "-o" ) {
[67bfc50]	173	args[nargs++] = argv[i]; // pass flag along
[b87a5ed]	174	i += 1;
	175	if ( i == argc ) continue; // next argument available ?
[2c60af75]	176	args[nargs++] = argv[i]; // pass argument along
	177	if ( arg == "-o" ) o_file = i; // remember file
[36de20d]	178
	179	// CFA specific arguments
	180
[67bfc50]	181	} else if ( strncmp(arg.c_str(), "-XCFA", 5) == 0 ) { // CFA pass through
	182	if ( arg.size() == 5 ) {
[0aa20e3]	183	i += 1;
[67bfc50]	184	if ( i == argc ) continue; // next argument available ?
[fcd1a469]	185	Putenv( argv, argv[i] ); // make available for cc1
[67bfc50]	186	} else if ( arg[5] == ',' ) { // CFA specific arguments
[fcd1a469]	187	string xcfargs = arg.substr( 6 ) + ","; // add sentinel
	188	for ( ;; ) {
	189	size_t posn = xcfargs.find_first_of( "," ); // find separator
	190	if ( posn == string::npos ) break; // any characters left ?
	191	string xcfarg = xcfargs.substr( 0, posn ); // remove XCFA argument
	192	Putenv( argv, xcfarg ); // make available for cc1
	193	xcfargs.erase( 0, posn + 1 ); // remove first argument and comma
	194	} // for
[67bfc50]	195	} else { // CFA specific arguments
[fcd1a469]	196	assert( false ); // this does not make sense
[0aa20e3]	197	args[nargs++] = argv[i];
[67bfc50]	198	} // if
[b87a5ed]	199	} else if ( arg == "-CFA" ) {
	200	CFA_flag = true; // strip the -CFA flag
	201	link = false;
[2c60af75]	202	args[nargs++] = "-fsyntax-only"; // stop after stage 2
[b87a5ed]	203	} else if ( arg == "-debug" ) {
	204	debug = true; // strip the debug flag
	205	} else if ( arg == "-nodebug" ) {
[2c60af75]	206	debug = false; // strip the nodebug flag
[b87a5ed]	207	} else if ( arg == "-quiet" ) {
	208	quiet = true; // strip the quiet flag
	209	} else if ( arg == "-noquiet" ) {
	210	quiet = false; // strip the noquiet flag
[36de20d]	211	} else if ( arg == "-no-include-stdhdr" ) {
	212	noincstd_flag = true; // strip the no-include-stdhdr flag
	213	} else if ( arg == "-nolib" ) {
	214	nolib = true; // strip the nolib flag
[b87a5ed]	215	} else if ( arg == "-help" ) {
	216	help = true; // strip the help flag
	217	} else if ( arg == "-nohelp" ) {
	218	help = false; // strip the nohelp flag
[1ee048fd]	219	} else if ( arg == "-cfalib") {
	220	compiling_libs = true;
[b87a5ed]	221	} else if ( arg == "-compiler" ) {
	222	// use the user specified compiler
	223	i += 1;
	224	if ( i == argc ) continue; // next argument available ?
	225	compiler_path = argv[i];
[2c60af75]	226	Putenv( argv, arg + "=" + argv[i] );
[b87a5ed]	227
[de62360d]	228	// C specific arguments
[b87a5ed]	229
	230	} else if ( arg == "-v" ) {
	231	verbose = true; // verbosity required
[67bfc50]	232	args[nargs++] = argv[i]; // pass flag along
[b87a5ed]	233	} else if ( arg == "-g" ) {
	234	debugging = true; // symbolic debugging required
[67bfc50]	235	args[nargs++] = argv[i]; // pass flag along
[b4130f9]	236	} else if ( arg == "-save-temps" \|\| arg == "--save-temps" ) {
[67bfc50]	237	args[nargs++] = argv[i]; // pass flag along
[bbb1b35]	238	Putenv( argv, arg ); // save cfa-cpp output
[8c63bb4]	239	} else if ( prefix( arg, "-x" ) ) { // file suffix ?
	240	string lang;
[67bfc50]	241	args[nargs++] = argv[i]; // pass flag along
[8c63bb4]	242	if ( arg.length() == 2 ) { // separate argument ?
	243	i += 1;
	244	if ( i == argc ) continue; // next argument available ?
	245	lang = argv[i];
[2c60af75]	246	args[nargs++] = argv[i]; // pass argument along
[8c63bb4]	247	} else {
	248	lang = arg.substr( 2 );
	249	} // if
[0163d3e]	250	if ( x_flag ) {
	251	cerr << argv[0] << " warning, only one -x flag per compile, ignoring subsequent flag." << endl;
	252	} else {
	253	x_flag = true;
	254	Putenv( argv, string( "-x=" ) + lang );
	255	} // if
[e3215c5]	256	} else if ( prefix( arg, "-std=" ) \|\| prefix( arg, "--std=" ) ) {
[53ba273]	257	std_flag = true; // -std=XX provided
[67bfc50]	258	args[nargs++] = argv[i]; // pass flag along
[44bca7f]	259	} else if ( arg == "-w" ) {
[67bfc50]	260	args[nargs++] = argv[i]; // pass flag along
[2c60af75]	261	Putenv( argv, arg );
[44bca7f]	262	} else if ( prefix( arg, "-W" ) ) { // check before next tests
	263	if ( arg == "-Werror" \|\| arg == "-Wall" ) {
[67bfc50]	264	args[nargs++] = argv[i]; // pass flag along
[2c60af75]	265	Putenv( argv, argv[i] );
[44bca7f]	266	} else {
	267	unsigned int adv = prefix( arg, "-Wno-" ) ? 5 : 2;
[2c60af75]	268	args[nargs] = argv[i]; // conditionally pass argument along
	269	const char * warning = argv[i] + adv; // extract warning
[af39199d]	270	if ( SemanticWarning_Exist( warning ) ) { // replace the argument for cfa-cpp
[2c60af75]	271	Putenv( argv, arg );
[af39199d]	272	} // if
[44bca7f]	273	nargs += 1;
	274	} // if
[b87a5ed]	275	} else if ( prefix( arg, "-B" ) ) {
[417a630]	276	bprefix = arg.substr(2); // strip the -B flag
[b87a5ed]	277	} else if ( arg == "-c" \|\| arg == "-S" \|\| arg == "-E" \|\| arg == "-M" \|\| arg == "-MM" ) {
[67bfc50]	278	args[nargs++] = argv[i]; // pass flag along
[b87a5ed]	279	if ( arg == "-E" \|\| arg == "-M" \|\| arg == "-MM" ) {
	280	cpp_flag = true; // cpp only
	281	} // if
	282	link = false; // no linkage required
[67bfc50]	283	} else if ( arg == "-D" \|\| arg == "-U" \|\| arg == "-I" \|\| arg == "-MF" \|\| arg == "-MT" \|\| arg == "-MQ" \|\|
	284	arg == "-include" \|\| arg == "-imacros" \|\| arg == "-idirafter" \|\| arg == "-iprefix" \|\|
	285	arg == "-iwithprefix" \|\| arg == "-iwithprefixbefore" \|\| arg == "-isystem" \|\| arg == "-isysroot" ) {
	286	args[nargs++] = argv[i]; // pass flag along
	287	i += 1;
	288	args[nargs++] = argv[i]; // pass argument along
[b87a5ed]	289	} else if ( arg[1] == 'l' ) {
	290	// if the user specifies a library, load it after user code
[2c60af75]	291	libs[nlibs++] = argv[i];
[37fe352]	292	} else if ( arg == "-m32" ) {
	293	m32 = true;
	294	m64 = false;
[2c60af75]	295	args[nargs++] = argv[i];
[37fe352]	296	} else if ( arg == "-m64" ) {
	297	m64 = true;
	298	m32 = false;
[2c60af75]	299	args[nargs++] = argv[i];
[b87a5ed]	300	} else {
	301	// concatenate any other arguments
[2c60af75]	302	args[nargs++] = argv[i];
[b87a5ed]	303	} // if
	304	} else {
[8c63bb4]	305	bool cfa = suffix( arg ); // check suffix
[4f5a8a2]	306	if ( ! x_flag && cfa ) { // no explicit suffix and cfa suffix ?
[2c60af75]	307	args[nargs++] = "-x";
	308	args[nargs++] = "c";
[8c63bb4]	309	} // if
[2c60af75]	310	args[nargs++] = argv[i]; // concatenate files
[4f5a8a2]	311	if ( ! x_flag && cfa ) { // no explicit suffix and cfa suffix ?
[2c60af75]	312	args[nargs++] = "-x";
	313	args[nargs++] = "none";
[dffaeac]	314	} // if
[b87a5ed]	315	nonoptarg = true;
	316	} // if
	317	} // for
[51b73452]	318
[f4530d7]	319	#ifdef __x86_64__
	320	args[nargs++] = "-mcx16"; // allow double-wide CAS
	321	#endif // __x86_64__
	322
[dffaeac]	323	#ifdef __DEBUG_H__
[b87a5ed]	324	cerr << "args:";
	325	for ( int i = 1; i < nargs; i += 1 ) {
	326	cerr << " " << args[i];
	327	} // for
	328	cerr << endl;
[dffaeac]	329	#endif // __DEBUG_H__
[51b73452]	330
[bbb1b35]	331	// -E flag stops at cc1 stage 1, so cfa-cpp in cc1 stage 2 is never executed.
[b87a5ed]	332	if ( cpp_flag && CFA_flag ) {
[aced69a]	333	CFA_flag = false;
	334	cerr << argv[0] << " warning, both -E and -CFA flags specified, using -E and ignoring -CFA." << endl;
[b87a5ed]	335	} // if
[51b73452]	336
[6e4b913]	337	// add the CFA include-library paths, which allow direct access to header files without directory qualification
[158b026]	338	string libbase;
	339	switch(path) {
[36de20d]	340	case Installed:
[2c60af75]	341	args[nargs++] = "-I" CFA_INCDIR;
[158b026]	342	// do not use during build
	343	if ( ! noincstd_flag ) {
[2c60af75]	344	args[nargs++] = "-I" CFA_INCDIR "stdhdr";
[a5121bf]	345	} // if
[2c60af75]	346	args[nargs++] = "-I" CFA_INCDIR "concurrency";
	347	args[nargs++] = "-I" CFA_INCDIR "containers";
[158b026]	348	libbase = CFA_LIBDIR;
	349	break;
[36de20d]	350	case BuildTree:
	351	case Distributed:
[2c60af75]	352	args[nargs++] = "-I" TOP_SRCDIR "libcfa/src";
[158b026]	353	// do not use during build
	354	if ( ! noincstd_flag ) {
[2c60af75]	355	args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/stdhdr";
[a5121bf]	356	} // if
[2c60af75]	357	args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/concurrency";
	358	args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/containers";
[158b026]	359
	360	libbase = TOP_BUILDDIR "libcfa/";
	361
	362	break;
[2c60af75]	363	} // if
[76c7f65e]	364
[a37133c]	365	// add stdbool to get defines for bool/true/false
[2c60af75]	366	args[nargs++] = "-imacros";
	367	args[nargs++] = "stdbool.h";
[a37133c]	368
[fcd1a469]	369	if ( compiling_libs ) {
[2c60af75]	370	Putenv( argv, "-t" );
	371	} // if
[37fe352]	372
[bbb1b35]	373	string arch( m32 ? CFA_32_CPU : (m64 ? CFA_64_CPU : CFA_DEFAULT_CPU) );
[13a984c]	374	if ( ! m32 && ! m64 ) {
	375	if ( arch == "x86" ) {
[2c60af75]	376	args[nargs++] = "-m32";
[13a984c]	377	} else if ( arch == "x64" ) {
[2c60af75]	378	args[nargs++] = "-m64";
[13a984c]	379	} // if
[dfb7c96]	380	} // if
[a5121bf]	381
[c9e640e]	382	const char * config = nolib ? "nolib" : (debug ? "debug": "nodebug");
[a5121bf]	383	string libdir = libbase + arch + "-" + config;
[dfb7c96]	384
[36de20d]	385	if ( path != Distributed ) {
[bbfd0e0]	386	if ( ! nolib && ! dirExists( libdir ) ) {
	387	cerr << argv[0] << " internal error, configuration " << config << " not installed." << endl;
	388	cerr << "Was looking for " << libdir << endl;
	389	for(int i = 1; i < argc; i++) {
	390	cerr << argv[i] << " ";
	391	}
	392	cerr << endl;
	393	libdir = libbase + arch + "-" + "nolib";
	394	} // if
[a5121bf]	395
[bbfd0e0]	396	if ( ! dirExists( libdir ) ) {
	397	cerr << argv[0] << " internal error, cannot find prelude directory." << endl;
	398	cerr << "Was looking for " << libdir << endl;
	399	exit( EXIT_FAILURE );
	400	} // if
[dfb7c96]	401	} // if
[a5121bf]	402
[c680a4b]	403	string preludedir;
[158b026]	404	switch(path) {
[36de20d]	405	case Installed : preludedir = libdir; break;
	406	case BuildTree : preludedir = libdir + "/prelude"; break;
	407	case Distributed : preludedir = dir(argv[0]); break;
	408	} // switch
[81e60f7]	409
[c680a4b]	410	Putenv( argv, "--prelude-dir=" + preludedir );
	411	args[nargs++] = "-include";
	412	args[nargs++] = (*new string(preludedir + "/defines.hfa")).c_str();
	413
[def9d4e]	414	for ( int i = 0; i < nlibs; i += 1 ) { // copy non-user libraries after all user libraries
[2c60af75]	415	args[nargs++] = libs[i];
[def9d4e]	416	} // for
	417
[b87a5ed]	418	if ( link ) {
[2c60af75]	419	args[nargs++] = "-Xlinker";
	420	args[nargs++] = "--undefined=__cfaabi_dbg_bits_write";
	421	args[nargs++] = "-Xlinker";
	422	args[nargs++] = "--undefined=__cfaabi_interpose_startup";
	423	args[nargs++] = "-Xlinker";
	424	args[nargs++] = "--undefined=__cfaabi_appready_startup";
[c8c0c7c5]	425	args[nargs++] = "-z";
	426	args[nargs++] = "execstack";
[6bfe5cc]	427
[b544afa]	428	// include the cfa library in case it is needed
[158b026]	429	args[nargs++] = ( *new string( string("-L" ) + libdir + (path != Installed ? "/src/.libs" : "")) ).c_str();
	430	args[nargs++] = ( *new string( string("-Wl,-rpath," ) + libdir + (path != Installed ? "/src/.libs" : "")) ).c_str();
[2c60af75]	431	args[nargs++] = "-Wl,--push-state,--as-needed";
	432	args[nargs++] = "-lcfathread";
	433	args[nargs++] = "-Wl,--pop-state";
[92a9768]	434	args[nargs++] = "-Wl,--push-state,--no-as-needed";
[2c60af75]	435	args[nargs++] = "-lcfa";
[92a9768]	436	args[nargs++] = "-Wl,--pop-state";
[f4530d7]	437	args[nargs++] = "-pthread";
[9b34766]	438	#if defined( __x86_64__ ) \|\| defined( __ARM_ARCH )
[f4530d7]	439	args[nargs++] = "-latomic"; // allow double-wide CAS
[314dab6]	440	#endif // __x86_64__
[2c60af75]	441	args[nargs++] = "-ldl";
	442	args[nargs++] = "-lm";
[51b73452]	443	} // if
	444
[2c60af75]	445	args[nargs++] = "-fexceptions"; // add exception flags (unconditionally)
[f5f2768]	446	args[nargs++] = "-D_GNU_SOURCE"; // force gnu libraries
[e9145a3]	447
[2c60af75]	448	// add flags based on the type of compile
[8c17ab0]	449
[2c60af75]	450	args[nargs++] = ( *new string( string("-D__CFA_MAJOR__=") + Major ) ).c_str();
	451	args[nargs++] = ( *new string( string("-D__CFA_MINOR__=") + Minor ) ).c_str();
	452	args[nargs++] = ( *new string( string("-D__CFA_PATCH__=") + Patch ) ).c_str();
	453	args[nargs++] = "-D__CFA__";
	454	args[nargs++] = "-D__CFORALL__";
	455	args[nargs++] = "-D__cforall";
[51b73452]	456
[b87a5ed]	457	if ( cpp_flag ) {
[2c60af75]	458	args[nargs++] = "-D__CPP__";
[b87a5ed]	459	} // if
[51b73452]	460
[b87a5ed]	461	if ( CFA_flag ) {
[2c60af75]	462	Putenv( argv, "-N" );
	463	Putenv( argv, "-CFA" );
[bbb1b35]	464	// -CFA implies cc1 stage 2, but gcc does not pass the -o file to this stage because it believe the file is for
	465	// the linker. Hence, the -o file is explicit passed to cc1 stage 2 and used as cfa-cpp's output file.
[2c60af75]	466	if ( o_file ) Putenv( argv, string( "-o=" ) + argv[o_file] );
[fa477f7]	467	} else {
[2c60af75]	468	Putenv( argv, "-L" );
[b87a5ed]	469	} // if
[2c60af75]	470
[b87a5ed]	471	if ( debug ) {
	472	heading += " (debug)";
[2c60af75]	473	args[nargs++] = "-D__CFA_DEBUG__";
[b87a5ed]	474	} else {
	475	heading += " (no debug)";
	476	} // if
[51b73452]	477
[417a630]	478	if ( bprefix.length() == 0 ) {
[158b026]	479	switch(path) {
[36de20d]	480	case Installed : bprefix = installlibdir; break;
	481	case BuildTree : bprefix = srcdriverdir ; break;
	482	case Distributed : bprefix = dir(argv[0]) ; break;
	483	} // switch
[b87a5ed]	484	} // if
[36de20d]	485	if ( bprefix[bprefix.length() - 1] != '/' ) bprefix += '/';
	486	Putenv( argv, string("-B=") + bprefix );
[51b73452]	487
[2c60af75]	488	args[nargs++] = "-Xlinker"; // used by backtrace
	489	args[nargs++] = "-export-dynamic";
[6bfe5cc]	490
[b87a5ed]	491	// execute the compilation command
[51b73452]	492
[b87a5ed]	493	args[0] = compiler_path.c_str(); // set compiler command for exec
	494	// find actual name of the compiler independent of the path to it
	495	int p = compiler_path.find_last_of( '/' ); // scan r -> l for first '/'
	496	if ( p == -1 ) {
	497	compiler_name = compiler_path;
	498	} else {
	499	compiler_name = *new string( compiler_path.substr( p + 1 ) );
	500	} // if
[51b73452]	501
[b87a5ed]	502	if ( prefix( compiler_name, "gcc" ) ) { // allow suffix on gcc name
[2c60af75]	503	args[nargs++] = "-no-integrated-cpp";
	504	args[nargs++] = "-Wno-deprecated";
[e35a32b]	505	args[nargs++] = "-Wno-strict-aliasing"; // casting from one type to another
[2c60af75]	506	#ifdef HAVE_CAST_FUNCTION_TYPE
	507	args[nargs++] = "-Wno-cast-function-type";
	508	#endif // HAVE_CAST_FUNCTION_TYPE
[36de20d]	509	if ( ! std_flag && ! x_flag ) {
	510	args[nargs++] = "-std=gnu11"; // default c11, if none specified
[de62360d]	511	} // if
[2c60af75]	512	args[nargs++] = "-fgnu89-inline";
	513	args[nargs++] = "-D__int8_t_defined"; // prevent gcc type-size attributes
[417a630]	514	args[nargs++] = ( *new string( string("-B") + bprefix ) ).c_str();
[b87a5ed]	515	} else {
[e24f13a]	516	cerr << argv[0] << " error, compiler \"" << compiler_name << "\" unsupported." << endl;
[b87a5ed]	517	exit( EXIT_FAILURE );
	518	} // if
[51b73452]	519
[bbb1b35]	520	args[nargs] = nullptr; // terminate
[51b73452]	521
[dffaeac]	522	#ifdef __DEBUG_H__
[b87a5ed]	523	cerr << "nargs: " << nargs << endl;
	524	cerr << "args:" << endl;
[bbb1b35]	525	for ( int i = 0; args[i] != nullptr; i += 1 ) {
[b87a5ed]	526	cerr << " \"" << args[i] << "\"" << endl;
	527	} // for
[1ee048fd]	528	cerr << endl;
[dffaeac]	529	#endif // __DEBUG_H__
[51b73452]	530
[b87a5ed]	531	if ( ! quiet ) {
	532	cerr << "CFA " << "Version " << Version << heading << endl;
	533	if ( help ) {
	534	cerr <<
	535	"-debug\t\t\t: use cfa runtime with debug checking" << endl <<
	536	"-help\t\t\t: print this help message" << endl <<
	537	"-quiet\t\t\t: print no messages from the cfa command" << endl <<
	538	"-CFA\t\t\t: run the cpp preprocessor and the cfa-cpp translator" << endl <<
	539	"-XCFA -cfa-cpp-flag\t: pass next flag as-is to the cfa-cpp translator" << endl <<
	540	"...\t\t\t: any other " << compiler_name << " flags" << endl;
	541	} // if
[51b73452]	542	} // if
	543
[b87a5ed]	544	if ( verbose ) {
	545	if ( argc == 2 ) exit( EXIT_SUCCESS ); // if only the -v flag is specified, do not invoke gcc
[51b73452]	546
[bbb1b35]	547	for ( int i = 0; args[i] != nullptr; i += 1 ) {
[b87a5ed]	548	cerr << args[i] << " ";
	549	} // for
	550	cerr << endl;
	551	} // if
[51b73452]	552
[b87a5ed]	553	if ( ! nonoptarg ) {
	554	cerr << argv[0] << " error, no input files" << endl;
	555	exit( EXIT_FAILURE );
	556	} // if
[51b73452]	557
[b87a5ed]	558	// execute the command and return the result
[51b73452]	559
[36de20d]	560	execvp( args[0], (char * const *)args ); // should not return
[2c60af75]	561	perror( "CFA Translator error: execvp" );
[b87a5ed]	562	exit( EXIT_FAILURE );
[51b73452]	563	} // main
	564
	565	// Local Variables: //
[b87a5ed]	566	// tab-width: 4 //
	567	// mode: c++ //
[51b73452]	568	// compile-command: "make install" //
	569	// End: //

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