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source: driver/cfa.cc @ 3a038fa

ADTast-experimentalenumpthread-emulationqualifiedEnum

Last change on this file since 3a038fa was fcd1a469, checked in by Peter A. Buhr <pabuhr@…>, 3 years ago
formatting, add short form for -XCFA options
Property mode set to `100644`
File size: 19.7 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	//
[51b7345]	9	// Author : Peter A. Buhr
	10	// Created On : Tue Aug 20 13:44:49 2002
[201aeb9]	11	// Last Modified By : Peter A. Buhr
[fcd1a469]	12	// Last Modified On : Wed Jul 14 21:55:12 2021
	13	// Update Count : 467
[b87a5ed]	14	//
[51b7345]	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
[51b7345]	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
[51b7345]	29
	30	using std::cerr;
	31	using std::endl;
	32	using std::string;
[47a8d17]	33	using std::to_string;
[51b7345]	34
[36de20d]	35	//#define __DEBUG_H__
[51b7345]	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
[51b7345]	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;
[51b7345]	54	} // prefix
	55
[7f51b9d]	56	static inline bool ends_with(const string & str, const string & sfix) {
[1ee048fd]	57	if (sfix.size() > str.size()) return false;
	58	return std::equal(str.rbegin(), str.rbegin() + sfix.size(), sfix.rbegin(), sfix.rend());
	59	}
	60
[158b026]	61	// check if string has suffix
[7f51b9d]	62	static bool suffix( const string & arg ) {
[8c63bb4]	63	enum { NumSuffixes = 3 };
	64	static const string suffixes[NumSuffixes] = { "cfa", "hfa", "ifa" };
[dffaeac]	65
	66	size_t dot = arg.find_last_of( "." );
	67	if ( dot == string::npos ) return false;
[8c63bb4]	68	const string * end = suffixes + NumSuffixes;
	69	return std::find( suffixes, end, arg.substr( dot + 1 ) ) != end;
[dffaeac]	70	} // suffix
[51b7345]	71
[2c60af75]	72	static inline bool dirExists( const string & path ) { // check if directory exists
[37fe352]	73	struct stat info;
[2c60af75]	74	if ( stat( path.c_str(), &info ) != 0 ) return false;
[b544afa]	75	return (info.st_mode & S_IFDIR) != 0;
[2c60af75]	76	} // dirExists
[37fe352]	77
[bbfd0e0]	78	static inline string dir(const string & path) {
	79	return path.substr(0, path.find_last_of('/'));
[7f51b9d]	80	} // dir
[bbfd0e0]	81
[158b026]	82	// Different path modes
	83	enum PathMode {
	84	Installed, // cfa is installed, use prefix
	85	BuildTree, // cfa is in the tree, use source and build tree
	86	Distributed // cfa is distributed, use build tree for includes and executable directory for .cfs
	87	};
	88
	89	// Get path mode from /proc
	90	PathMode FromProc() {
	91	std::string abspath;
	92	abspath.resize(PATH_MAX);
	93
	94	// get executable path from /proc/self/exe
	95	ssize_t size = readlink("/proc/self/exe", const_cast<char*>(abspath.c_str()), abspath.size());
[fcd1a469]	96	if ( size <= 0 ) {
[158b026]	97	std::cerr << "Error could not evaluate absolute path from /proc/self/exe" << std::endl;
	98	std::cerr << "Failed with " << std::strerror(errno) << std::endl;
	99	std::exit(1);
[fcd1a469]	100	} // if
[158b026]	101
	102	// Trim extra characters
	103	abspath.resize(size);
	104
	105	// Are we installed
[fcd1a469]	106	if ( abspath.rfind(CFA_BINDIR, 0) == 0 ) { return Installed; }
[158b026]	107
	108	// Is this the build tree
[fcd1a469]	109	if ( abspath.rfind(TOP_BUILDDIR, 0 ) == 0 ) { return BuildTree; }
[158b026]	110
	111	// Does this look like distcc
[fcd1a469]	112	if ( abspath.find( "/.cfadistcc/" ) != std::string::npos ) { return Distributed; }
[158b026]	113
	114	// None of the above? Give up since we don't know where the prelude or include directories are
	115	std::cerr << "Cannot find required files from excutable path " << abspath << std::endl;
	116	std::exit(1);
	117	}
	118
[51b7345]	119
[8c63bb4]	120	int main( int argc, char * argv[] ) {
[4b1afb6]	121	string Version( CFA_VERSION_LONG ); // current version number from CONFIG
[2c60af75]	122	string Major( xstr( CFA_VERSION_MAJOR ) ), Minor( xstr( CFA_VERSION_MINOR ) ), Patch( xstr( CFA_VERSION_PATCH ) );
[51b7345]	123
[d6f4488]	124	string installincdir( CFA_INCDIR ); // fixed location of include files
	125	string installlibdir( CFA_LIBDIR ); // fixed location of cc1 and cfa-cpp commands when installed
	126	string srcdriverdir ( TOP_BUILDDIR "driver"); // fixed location of cc1 and cfa-cpp commands when in tree
[51b7345]	127
[b87a5ed]	128	string heading; // banner printed at start of cfa compilation
	129	string arg; // current command-line argument during command-line parsing
[b544afa]	130	string bprefix; // path where gcc looks for compiler steps
[b87a5ed]	131	string langstd; // language standard
[51b7345]	132
[e24f13a]	133	string compiler_path( CFA_BACKEND_CC ); // path/name of C compiler
[b87a5ed]	134	string compiler_name; // name of C compiler
[51b7345]	135
[4f5a8a2]	136	bool x_flag = false; // -x flag
[bbb1b35]	137	bool nonoptarg = false; // no non-option arguments specified, i.e., no file names
	138	bool link = true; // link stage occurring
[b87a5ed]	139	bool verbose = false; // -v flag
[8c63bb4]	140	bool quiet = false; // -quiet flag
	141	bool debug = true; // -debug flag
	142	bool nolib = false; // -nolib flag
	143	bool help = false; // -help flag
[b87a5ed]	144	bool CFA_flag = false; // -CFA flag
	145	bool cpp_flag = false; // -E or -M flag, preprocessor only
[de62360d]	146	bool std_flag = false; // -std= flag
[d746bc8]	147	bool noincstd_flag = false; // -no-include-stdhdr= flag
[6e4b913]	148	bool debugging __attribute(( unused )) = false; // -g flag
[8c63bb4]	149	bool m32 = false; // -m32 flag
	150	bool m64 = false; // -m64 flag
[1ee048fd]	151	bool compiling_libs = false;
[2c60af75]	152	int o_file = 0; // -o filename position
[51b7345]	153
[158b026]	154	PathMode path = FromProc();
	155
[36de20d]	156	const char * args[argc + 100]; // cfa command line values, plus some space for additional flags
[b87a5ed]	157	int sargs = 1; // starting location for arguments in args list
	158	int nargs = sargs; // number of arguments in args list; 0 => command name
[51b7345]	159
[36de20d]	160	const char * libs[argc + 20]; // non-user libraries must come separately, plus some added libraries and flags
[b87a5ed]	161	int nlibs = 0;
[51b7345]	162
[dffaeac]	163	#ifdef __DEBUG_H__
[b87a5ed]	164	cerr << "CFA:" << endl;
[bec4d24]	165	for ( int i = 1; i < argc; i += 1 ) {
	166	cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
	167	} // for
[dffaeac]	168	#endif // __DEBUG_H__
[51b7345]	169
[b87a5ed]	170	// process command-line arguments
[51b7345]	171
[b87a5ed]	172	for ( int i = 1; i < argc; i += 1 ) {
	173	arg = argv[i]; // convert to string value
	174	if ( prefix( arg, "-" ) ) {
	175	// pass through arguments
	176
	177	if ( arg == "-Xlinker" \|\| arg == "-o" ) {
[67bfc50]	178	args[nargs++] = argv[i]; // pass flag along
[b87a5ed]	179	i += 1;
	180	if ( i == argc ) continue; // next argument available ?
[2c60af75]	181	args[nargs++] = argv[i]; // pass argument along
	182	if ( arg == "-o" ) o_file = i; // remember file
[36de20d]	183
	184	// CFA specific arguments
	185
[67bfc50]	186	} else if ( strncmp(arg.c_str(), "-XCFA", 5) == 0 ) { // CFA pass through
	187	if ( arg.size() == 5 ) {
[0aa20e3]	188	i += 1;
[67bfc50]	189	if ( i == argc ) continue; // next argument available ?
[fcd1a469]	190	Putenv( argv, argv[i] ); // make available for cc1
[67bfc50]	191	} else if ( arg[5] == ',' ) { // CFA specific arguments
[fcd1a469]	192	string xcfargs = arg.substr( 6 ) + ","; // add sentinel
	193	for ( ;; ) {
	194	size_t posn = xcfargs.find_first_of( "," ); // find separator
	195	if ( posn == string::npos ) break; // any characters left ?
	196	string xcfarg = xcfargs.substr( 0, posn ); // remove XCFA argument
	197	Putenv( argv, xcfarg ); // make available for cc1
	198	xcfargs.erase( 0, posn + 1 ); // remove first argument and comma
	199	} // for
[67bfc50]	200	} else { // CFA specific arguments
[fcd1a469]	201	assert( false ); // this does not make sense
[0aa20e3]	202	args[nargs++] = argv[i];
[67bfc50]	203	} // if
[b87a5ed]	204	} else if ( arg == "-CFA" ) {
	205	CFA_flag = true; // strip the -CFA flag
	206	link = false;
[2c60af75]	207	args[nargs++] = "-fsyntax-only"; // stop after stage 2
[b87a5ed]	208	} else if ( arg == "-debug" ) {
	209	debug = true; // strip the debug flag
	210	} else if ( arg == "-nodebug" ) {
[2c60af75]	211	debug = false; // strip the nodebug flag
[b87a5ed]	212	} else if ( arg == "-quiet" ) {
	213	quiet = true; // strip the quiet flag
	214	} else if ( arg == "-noquiet" ) {
	215	quiet = false; // strip the noquiet flag
[36de20d]	216	} else if ( arg == "-no-include-stdhdr" ) {
	217	noincstd_flag = true; // strip the no-include-stdhdr flag
	218	} else if ( arg == "-nolib" ) {
	219	nolib = true; // strip the nolib flag
[b87a5ed]	220	} else if ( arg == "-help" ) {
	221	help = true; // strip the help flag
	222	} else if ( arg == "-nohelp" ) {
	223	help = false; // strip the nohelp flag
[1ee048fd]	224	} else if ( arg == "-cfalib") {
	225	compiling_libs = true;
[b87a5ed]	226	} else if ( arg == "-compiler" ) {
	227	// use the user specified compiler
	228	i += 1;
	229	if ( i == argc ) continue; // next argument available ?
	230	compiler_path = argv[i];
[2c60af75]	231	Putenv( argv, arg + "=" + argv[i] );
[b87a5ed]	232
[de62360d]	233	// C specific arguments
[b87a5ed]	234
	235	} else if ( arg == "-v" ) {
	236	verbose = true; // verbosity required
[67bfc50]	237	args[nargs++] = argv[i]; // pass flag along
[b87a5ed]	238	} else if ( arg == "-g" ) {
	239	debugging = true; // symbolic debugging required
[67bfc50]	240	args[nargs++] = argv[i]; // pass flag along
[b4130f9]	241	} else if ( arg == "-save-temps" \|\| arg == "--save-temps" ) {
[67bfc50]	242	args[nargs++] = argv[i]; // pass flag along
[bbb1b35]	243	Putenv( argv, arg ); // save cfa-cpp output
[8c63bb4]	244	} else if ( prefix( arg, "-x" ) ) { // file suffix ?
	245	string lang;
[67bfc50]	246	args[nargs++] = argv[i]; // pass flag along
[8c63bb4]	247	if ( arg.length() == 2 ) { // separate argument ?
	248	i += 1;
	249	if ( i == argc ) continue; // next argument available ?
	250	lang = argv[i];
[2c60af75]	251	args[nargs++] = argv[i]; // pass argument along
[8c63bb4]	252	} else {
	253	lang = arg.substr( 2 );
	254	} // if
[0163d3e]	255	if ( x_flag ) {
	256	cerr << argv[0] << " warning, only one -x flag per compile, ignoring subsequent flag." << endl;
	257	} else {
	258	x_flag = true;
	259	Putenv( argv, string( "-x=" ) + lang );
	260	} // if
[e3215c5]	261	} else if ( prefix( arg, "-std=" ) \|\| prefix( arg, "--std=" ) ) {
[53ba273]	262	std_flag = true; // -std=XX provided
[67bfc50]	263	args[nargs++] = argv[i]; // pass flag along
[44bca7f]	264	} else if ( arg == "-w" ) {
[67bfc50]	265	args[nargs++] = argv[i]; // pass flag along
[2c60af75]	266	Putenv( argv, arg );
[44bca7f]	267	} else if ( prefix( arg, "-W" ) ) { // check before next tests
	268	if ( arg == "-Werror" \|\| arg == "-Wall" ) {
[67bfc50]	269	args[nargs++] = argv[i]; // pass flag along
[2c60af75]	270	Putenv( argv, argv[i] );
[44bca7f]	271	} else {
	272	unsigned int adv = prefix( arg, "-Wno-" ) ? 5 : 2;
[2c60af75]	273	args[nargs] = argv[i]; // conditionally pass argument along
	274	const char * warning = argv[i] + adv; // extract warning
[af39199d]	275	if ( SemanticWarning_Exist( warning ) ) { // replace the argument for cfa-cpp
[2c60af75]	276	Putenv( argv, arg );
[af39199d]	277	} // if
[44bca7f]	278	nargs += 1;
	279	} // if
[b87a5ed]	280	} else if ( prefix( arg, "-B" ) ) {
[417a630]	281	bprefix = arg.substr(2); // strip the -B flag
[b87a5ed]	282	} else if ( arg == "-c" \|\| arg == "-S" \|\| arg == "-E" \|\| arg == "-M" \|\| arg == "-MM" ) {
[67bfc50]	283	args[nargs++] = argv[i]; // pass flag along
[b87a5ed]	284	if ( arg == "-E" \|\| arg == "-M" \|\| arg == "-MM" ) {
	285	cpp_flag = true; // cpp only
	286	} // if
	287	link = false; // no linkage required
[67bfc50]	288	} else if ( arg == "-D" \|\| arg == "-U" \|\| arg == "-I" \|\| arg == "-MF" \|\| arg == "-MT" \|\| arg == "-MQ" \|\|
	289	arg == "-include" \|\| arg == "-imacros" \|\| arg == "-idirafter" \|\| arg == "-iprefix" \|\|
	290	arg == "-iwithprefix" \|\| arg == "-iwithprefixbefore" \|\| arg == "-isystem" \|\| arg == "-isysroot" ) {
	291	args[nargs++] = argv[i]; // pass flag along
	292	i += 1;
	293	args[nargs++] = argv[i]; // pass argument along
[b87a5ed]	294	} else if ( arg[1] == 'l' ) {
	295	// if the user specifies a library, load it after user code
[2c60af75]	296	libs[nlibs++] = argv[i];
[37fe352]	297	} else if ( arg == "-m32" ) {
	298	m32 = true;
	299	m64 = false;
[2c60af75]	300	args[nargs++] = argv[i];
[37fe352]	301	} else if ( arg == "-m64" ) {
	302	m64 = true;
	303	m32 = false;
[2c60af75]	304	args[nargs++] = argv[i];
[b87a5ed]	305	} else {
	306	// concatenate any other arguments
[2c60af75]	307	args[nargs++] = argv[i];
[b87a5ed]	308	} // if
	309	} else {
[8c63bb4]	310	bool cfa = suffix( arg ); // check suffix
[4f5a8a2]	311	if ( ! x_flag && cfa ) { // no explicit suffix and cfa suffix ?
[2c60af75]	312	args[nargs++] = "-x";
	313	args[nargs++] = "c";
[8c63bb4]	314	} // if
[2c60af75]	315	args[nargs++] = argv[i]; // concatenate files
[4f5a8a2]	316	if ( ! x_flag && cfa ) { // no explicit suffix and cfa suffix ?
[2c60af75]	317	args[nargs++] = "-x";
	318	args[nargs++] = "none";
[dffaeac]	319	} // if
[b87a5ed]	320	nonoptarg = true;
	321	} // if
	322	} // for
[51b7345]	323
[f4530d7]	324	#ifdef __x86_64__
	325	args[nargs++] = "-mcx16"; // allow double-wide CAS
	326	#endif // __x86_64__
	327
[dffaeac]	328	#ifdef __DEBUG_H__
[b87a5ed]	329	cerr << "args:";
	330	for ( int i = 1; i < nargs; i += 1 ) {
	331	cerr << " " << args[i];
	332	} // for
	333	cerr << endl;
[dffaeac]	334	#endif // __DEBUG_H__
[51b7345]	335
[bbb1b35]	336	// -E flag stops at cc1 stage 1, so cfa-cpp in cc1 stage 2 is never executed.
[b87a5ed]	337	if ( cpp_flag && CFA_flag ) {
[aced69a]	338	CFA_flag = false;
	339	cerr << argv[0] << " warning, both -E and -CFA flags specified, using -E and ignoring -CFA." << endl;
[b87a5ed]	340	} // if
[51b7345]	341
[6e4b913]	342	// add the CFA include-library paths, which allow direct access to header files without directory qualification
[158b026]	343	string libbase;
	344	switch(path) {
[36de20d]	345	case Installed:
[2c60af75]	346	args[nargs++] = "-I" CFA_INCDIR;
[158b026]	347	// do not use during build
	348	if ( ! noincstd_flag ) {
[2c60af75]	349	args[nargs++] = "-I" CFA_INCDIR "stdhdr";
[a5121bf]	350	} // if
[2c60af75]	351	args[nargs++] = "-I" CFA_INCDIR "concurrency";
	352	args[nargs++] = "-I" CFA_INCDIR "containers";
[158b026]	353	libbase = CFA_LIBDIR;
	354	break;
[36de20d]	355	case BuildTree:
	356	case Distributed:
[2c60af75]	357	args[nargs++] = "-I" TOP_SRCDIR "libcfa/src";
[158b026]	358	// do not use during build
	359	if ( ! noincstd_flag ) {
[2c60af75]	360	args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/stdhdr";
[a5121bf]	361	} // if
[2c60af75]	362	args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/concurrency";
	363	args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/containers";
[158b026]	364
	365	libbase = TOP_BUILDDIR "libcfa/";
	366
	367	break;
[2c60af75]	368	} // if
[76c7f65e]	369
[a37133c]	370	// add stdbool to get defines for bool/true/false
[2c60af75]	371	args[nargs++] = "-imacros";
	372	args[nargs++] = "stdbool.h";
[a37133c]	373
[fcd1a469]	374	if ( compiling_libs ) {
[2c60af75]	375	Putenv( argv, "-t" );
	376	} // if
[37fe352]	377
[bbb1b35]	378	string arch( m32 ? CFA_32_CPU : (m64 ? CFA_64_CPU : CFA_DEFAULT_CPU) );
[13a984c]	379	if ( ! m32 && ! m64 ) {
	380	if ( arch == "x86" ) {
[2c60af75]	381	args[nargs++] = "-m32";
[13a984c]	382	} else if ( arch == "x64" ) {
[2c60af75]	383	args[nargs++] = "-m64";
[13a984c]	384	} // if
[dfb7c96]	385	} // if
[a5121bf]	386
[c9e640e]	387	const char * config = nolib ? "nolib" : (debug ? "debug": "nodebug");
[a5121bf]	388	string libdir = libbase + arch + "-" + config;
[dfb7c96]	389
[36de20d]	390	if ( path != Distributed ) {
[bbfd0e0]	391	if ( ! nolib && ! dirExists( libdir ) ) {
	392	cerr << argv[0] << " internal error, configuration " << config << " not installed." << endl;
	393	cerr << "Was looking for " << libdir << endl;
	394	for(int i = 1; i < argc; i++) {
	395	cerr << argv[i] << " ";
	396	}
	397	cerr << endl;
	398	libdir = libbase + arch + "-" + "nolib";
	399	} // if
[a5121bf]	400
[bbfd0e0]	401	if ( ! dirExists( libdir ) ) {
	402	cerr << argv[0] << " internal error, cannot find prelude directory." << endl;
	403	cerr << "Was looking for " << libdir << endl;
	404	exit( EXIT_FAILURE );
	405	} // if
[dfb7c96]	406	} // if
[a5121bf]	407
[c680a4b]	408	string preludedir;
[158b026]	409	switch(path) {
[36de20d]	410	case Installed : preludedir = libdir; break;
	411	case BuildTree : preludedir = libdir + "/prelude"; break;
	412	case Distributed : preludedir = dir(argv[0]); break;
	413	} // switch
[81e60f7]	414
[c680a4b]	415	Putenv( argv, "--prelude-dir=" + preludedir );
	416	args[nargs++] = "-include";
	417	args[nargs++] = (*new string(preludedir + "/defines.hfa")).c_str();
	418
[def9d4e]	419	for ( int i = 0; i < nlibs; i += 1 ) { // copy non-user libraries after all user libraries
[2c60af75]	420	args[nargs++] = libs[i];
[def9d4e]	421	} // for
	422
[b87a5ed]	423	if ( link ) {
[2c60af75]	424	args[nargs++] = "-Xlinker";
	425	args[nargs++] = "--undefined=__cfaabi_dbg_bits_write";
	426	args[nargs++] = "-Xlinker";
	427	args[nargs++] = "--undefined=__cfaabi_interpose_startup";
	428	args[nargs++] = "-Xlinker";
	429	args[nargs++] = "--undefined=__cfaabi_appready_startup";
[c8c0c7c5]	430	args[nargs++] = "-z";
	431	args[nargs++] = "execstack";
[6bfe5cc]	432
[b544afa]	433	// include the cfa library in case it is needed
[158b026]	434	args[nargs++] = ( *new string( string("-L" ) + libdir + (path != Installed ? "/src/.libs" : "")) ).c_str();
	435	args[nargs++] = ( *new string( string("-Wl,-rpath," ) + libdir + (path != Installed ? "/src/.libs" : "")) ).c_str();
[2c60af75]	436	args[nargs++] = "-Wl,--push-state,--as-needed";
	437	args[nargs++] = "-lcfathread";
	438	args[nargs++] = "-Wl,--pop-state";
[92a9768]	439	args[nargs++] = "-Wl,--push-state,--no-as-needed";
[2c60af75]	440	args[nargs++] = "-lcfa";
[92a9768]	441	args[nargs++] = "-Wl,--pop-state";
[f4530d7]	442	args[nargs++] = "-pthread";
[9b34766]	443	#if defined( __x86_64__ ) \|\| defined( __ARM_ARCH )
[f4530d7]	444	args[nargs++] = "-latomic"; // allow double-wide CAS
[314dab6]	445	#endif // __x86_64__
[2c60af75]	446	args[nargs++] = "-ldl";
	447	args[nargs++] = "-lm";
[51b7345]	448	} // if
	449
[2c60af75]	450	args[nargs++] = "-fexceptions"; // add exception flags (unconditionally)
[e9145a3]	451
[2c60af75]	452	// add flags based on the type of compile
[8c17ab0]	453
[2c60af75]	454	args[nargs++] = ( *new string( string("-D__CFA_MAJOR__=") + Major ) ).c_str();
	455	args[nargs++] = ( *new string( string("-D__CFA_MINOR__=") + Minor ) ).c_str();
	456	args[nargs++] = ( *new string( string("-D__CFA_PATCH__=") + Patch ) ).c_str();
	457	args[nargs++] = "-D__CFA__";
	458	args[nargs++] = "-D__CFORALL__";
	459	args[nargs++] = "-D__cforall";
[51b7345]	460
[b87a5ed]	461	if ( cpp_flag ) {
[2c60af75]	462	args[nargs++] = "-D__CPP__";
[b87a5ed]	463	} // if
[51b7345]	464
[b87a5ed]	465	if ( CFA_flag ) {
[2c60af75]	466	Putenv( argv, "-N" );
	467	Putenv( argv, "-CFA" );
[bbb1b35]	468	// -CFA implies cc1 stage 2, but gcc does not pass the -o file to this stage because it believe the file is for
	469	// the linker. Hence, the -o file is explicit passed to cc1 stage 2 and used as cfa-cpp's output file.
[2c60af75]	470	if ( o_file ) Putenv( argv, string( "-o=" ) + argv[o_file] );
[fa477f7]	471	} else {
[2c60af75]	472	Putenv( argv, "-L" );
[b87a5ed]	473	} // if
[2c60af75]	474
[b87a5ed]	475	if ( debug ) {
	476	heading += " (debug)";
[2c60af75]	477	args[nargs++] = "-D__CFA_DEBUG__";
[b87a5ed]	478	} else {
	479	heading += " (no debug)";
	480	} // if
[51b7345]	481
[417a630]	482	if ( bprefix.length() == 0 ) {
[158b026]	483	switch(path) {
[36de20d]	484	case Installed : bprefix = installlibdir; break;
	485	case BuildTree : bprefix = srcdriverdir ; break;
	486	case Distributed : bprefix = dir(argv[0]) ; break;
	487	} // switch
[b87a5ed]	488	} // if
[36de20d]	489	if ( bprefix[bprefix.length() - 1] != '/' ) bprefix += '/';
	490	Putenv( argv, string("-B=") + bprefix );
[51b7345]	491
[2c60af75]	492	args[nargs++] = "-Xlinker"; // used by backtrace
	493	args[nargs++] = "-export-dynamic";
[6bfe5cc]	494
[b87a5ed]	495	// execute the compilation command
[51b7345]	496
[b87a5ed]	497	args[0] = compiler_path.c_str(); // set compiler command for exec
	498	// find actual name of the compiler independent of the path to it
	499	int p = compiler_path.find_last_of( '/' ); // scan r -> l for first '/'
	500	if ( p == -1 ) {
	501	compiler_name = compiler_path;
	502	} else {
	503	compiler_name = *new string( compiler_path.substr( p + 1 ) );
	504	} // if
[51b7345]	505
[b87a5ed]	506	if ( prefix( compiler_name, "gcc" ) ) { // allow suffix on gcc name
[2c60af75]	507	args[nargs++] = "-no-integrated-cpp";
	508	args[nargs++] = "-Wno-deprecated";
[e35a32b]	509	args[nargs++] = "-Wno-strict-aliasing"; // casting from one type to another
[2c60af75]	510	#ifdef HAVE_CAST_FUNCTION_TYPE
	511	args[nargs++] = "-Wno-cast-function-type";
	512	#endif // HAVE_CAST_FUNCTION_TYPE
[36de20d]	513	if ( ! std_flag && ! x_flag ) {
	514	args[nargs++] = "-std=gnu11"; // default c11, if none specified
[de62360d]	515	} // if
[2c60af75]	516	args[nargs++] = "-fgnu89-inline";
	517	args[nargs++] = "-D__int8_t_defined"; // prevent gcc type-size attributes
[417a630]	518	args[nargs++] = ( *new string( string("-B") + bprefix ) ).c_str();
[b87a5ed]	519	} else {
[e24f13a]	520	cerr << argv[0] << " error, compiler \"" << compiler_name << "\" unsupported." << endl;
[b87a5ed]	521	exit( EXIT_FAILURE );
	522	} // if
[51b7345]	523
[bbb1b35]	524	args[nargs] = nullptr; // terminate
[51b7345]	525
[dffaeac]	526	#ifdef __DEBUG_H__
[b87a5ed]	527	cerr << "nargs: " << nargs << endl;
	528	cerr << "args:" << endl;
[bbb1b35]	529	for ( int i = 0; args[i] != nullptr; i += 1 ) {
[b87a5ed]	530	cerr << " \"" << args[i] << "\"" << endl;
	531	} // for
[1ee048fd]	532	cerr << endl;
[dffaeac]	533	#endif // __DEBUG_H__
[51b7345]	534
[b87a5ed]	535	if ( ! quiet ) {
	536	cerr << "CFA " << "Version " << Version << heading << endl;
	537	if ( help ) {
	538	cerr <<
	539	"-debug\t\t\t: use cfa runtime with debug checking" << endl <<
	540	"-help\t\t\t: print this help message" << endl <<
	541	"-quiet\t\t\t: print no messages from the cfa command" << endl <<
	542	"-CFA\t\t\t: run the cpp preprocessor and the cfa-cpp translator" << endl <<
	543	"-XCFA -cfa-cpp-flag\t: pass next flag as-is to the cfa-cpp translator" << endl <<
	544	"...\t\t\t: any other " << compiler_name << " flags" << endl;
	545	} // if
[51b7345]	546	} // if
	547
[b87a5ed]	548	if ( verbose ) {
	549	if ( argc == 2 ) exit( EXIT_SUCCESS ); // if only the -v flag is specified, do not invoke gcc
[51b7345]	550
[bbb1b35]	551	for ( int i = 0; args[i] != nullptr; i += 1 ) {
[b87a5ed]	552	cerr << args[i] << " ";
	553	} // for
	554	cerr << endl;
	555	} // if
[51b7345]	556
[b87a5ed]	557	if ( ! nonoptarg ) {
	558	cerr << argv[0] << " error, no input files" << endl;
	559	exit( EXIT_FAILURE );
	560	} // if
[51b7345]	561
[b87a5ed]	562	// execute the command and return the result
[51b7345]	563
[36de20d]	564	execvp( args[0], (char * const *)args ); // should not return
[2c60af75]	565	perror( "CFA Translator error: execvp" );
[b87a5ed]	566	exit( EXIT_FAILURE );
[51b7345]	567	} // main
	568
	569	// Local Variables: //
[b87a5ed]	570	// tab-width: 4 //
	571	// mode: c++ //
[51b7345]	572	// compile-command: "make install" //
	573	// End: //

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