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source: src/driver/cfa.cc @ 3f0c6a5

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Last change on this file since 3f0c6a5 was 47a8d17, checked in by Thierry Delisle <tdelisle@…>, 8 years ago
cfa version is now based on file of the same name
Property mode set to `100644`
File size: 12.0 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
	11	// Last Modified By : Peter A. Buhr
[ec129c4]	12	// Last Modified On : Tue Oct 25 21:29:48 2016
	13	// Update Count : 152
[b87a5ed]	14	//
[51b7345]	15
	16	#include <iostream>
[b87a5ed]	17	#include <cstdio> // perror
	18	#include <cstdlib> // putenv, exit
	19	#include <unistd.h> // execvp
	20	#include <string> // STL version
[51b7345]	21
[b87a5ed]	22	#include "config.h" // configure info
[51b7345]	23
	24	using std::cerr;
	25	using std::endl;
	26	using std::string;
[47a8d17]	27	using std::to_string;
[51b7345]	28
	29
	30	//#define __DEBUG_H__
	31
	32
	33	bool prefix( string arg, string pre ) {
[b87a5ed]	34	return arg.substr( 0, pre.size() ) == pre;
[51b7345]	35	} // prefix
	36
	37
	38	void shuffle( const char *args[], int S, int E, int N ) {
[b87a5ed]	39	// S & E index 1 passed the end so adjust with -1
[51b7345]	40	#ifdef __DEBUG_H__
[b87a5ed]	41	cerr << "shuffle:" << S << " " << E << " " << N << endl;
[51b7345]	42	#endif // __DEBUG_H__
[b87a5ed]	43	for ( int j = E-1 + N; j > S-1 + N; j -=1 ) {
[51b7345]	44	#ifdef __DEBUG_H__
[b87a5ed]	45	cerr << "\t" << j << " " << j-N << endl;
[51b7345]	46	#endif // __DEBUG_H__
[b87a5ed]	47	args[j] = args[j-N];
	48	} // for
[51b7345]	49	} // shuffle
	50
	51
	52	int main( int argc, char *argv[] ) {
[47a8d17]	53	string Version( CFA_VERSION_LONG ); // current version number from CONFIG
	54	string Major( to_string( CFA_VERSION_MAJOR ) ), Minor( to_string( CFA_VERSION_MINOR ) ), Patch( to_string( CFA_VERSION_PATCH ) );
[51b7345]	55
[00cc023]	56	string installincdir( CFA_INCDIR ); // fixed location of include files
	57	string installlibdir( CFA_LIBDIR ); // fixed location of cc1 and cfa-cpp commands
[51b7345]	58
[b87a5ed]	59	string heading; // banner printed at start of cfa compilation
	60	string arg; // current command-line argument during command-line parsing
	61	string Bprefix; // path where gcc looks for compiler command steps
	62	string langstd; // language standard
[51b7345]	63
[e24f13a]	64	string compiler_path( CFA_BACKEND_CC ); // path/name of C compiler
[b87a5ed]	65	string compiler_name; // name of C compiler
[51b7345]	66
[b87a5ed]	67	bool nonoptarg = false; // indicates non-option argument specified
	68	bool link = true; // linking as well as compiling
	69	bool verbose = false; // -v flag
	70	bool quiet = false; // -quiet flag
	71	bool debug = true; // -debug flag
	72	bool help = false; // -help flag
	73	bool CFA_flag = false; // -CFA flag
	74	bool cpp_flag = false; // -E or -M flag, preprocessor only
[de62360d]	75	bool std_flag = false; // -std= flag
[35f9114]	76	bool noincstd_flag = false; // -no-include-stdhdr= flag
[6e4b913]	77	bool debugging __attribute(( unused )) = false; // -g flag
[51b7345]	78
[b87a5ed]	79	const char *args[argc + 100]; // cfa command line values, plus some space for additional flags
	80	int sargs = 1; // starting location for arguments in args list
	81	int nargs = sargs; // number of arguments in args list; 0 => command name
[51b7345]	82
[b87a5ed]	83	const char *libs[argc + 20]; // non-user libraries must come separately, plus some added libraries and flags
	84	int nlibs = 0;
[51b7345]	85
	86	#ifdef __DEBUG_H__
[b87a5ed]	87	cerr << "CFA:" << endl;
[51b7345]	88	#endif // __DEBUG_H__
	89
[b87a5ed]	90	// process command-line arguments
[51b7345]	91
[b87a5ed]	92	for ( int i = 1; i < argc; i += 1 ) {
[51b7345]	93	#ifdef __DEBUG_H__
[b87a5ed]	94	cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
[51b7345]	95	#endif // __DEBUG_H__
[b87a5ed]	96	arg = argv[i]; // convert to string value
[51b7345]	97	#ifdef __DEBUG_H__
[b87a5ed]	98	cerr << "arg:\"" << arg << "\"" << endl;
[51b7345]	99	#endif // __DEBUG_H__
[b87a5ed]	100	if ( prefix( arg, "-" ) ) {
	101	// pass through arguments
	102
	103	if ( arg == "-Xlinker" \|\| arg == "-o" ) {
	104	args[nargs] = argv[i]; // pass the argument along
	105	nargs += 1;
	106	i += 1;
	107	if ( i == argc ) continue; // next argument available ?
	108	args[nargs] = argv[i]; // pass the argument along
	109	nargs += 1;
	110	} else if ( arg == "-XCFA" ) { // CFA pass through
	111	i += 1;
	112	args[nargs] = ( *new string( string("-D__CFA_FLAG__=") + argv[i] ) ).c_str();
	113	nargs += 1;
	114
	115	// CFA specific arguments
	116
	117	} else if ( arg == "-CFA" ) {
	118	CFA_flag = true; // strip the -CFA flag
	119	link = false;
	120	args[nargs] = "-E"; // replace the argument with -E
	121	nargs += 1;
	122	} else if ( arg == "-debug" ) {
	123	debug = true; // strip the debug flag
	124	} else if ( arg == "-nodebug" ) {
	125	debug = false; // strip the nodebug flag
	126	} else if ( arg == "-quiet" ) {
	127	quiet = true; // strip the quiet flag
	128	} else if ( arg == "-noquiet" ) {
	129	quiet = false; // strip the noquiet flag
	130	} else if ( arg == "-help" ) {
	131	help = true; // strip the help flag
	132	} else if ( arg == "-nohelp" ) {
	133	help = false; // strip the nohelp flag
[35f9114]	134	} else if ( arg == "-no-include-stdhdr" ) {
	135	noincstd_flag = true; // strip the no-include-stdhdr flag
[b87a5ed]	136	} else if ( arg == "-compiler" ) {
	137	// use the user specified compiler
	138	i += 1;
	139	if ( i == argc ) continue; // next argument available ?
	140	compiler_path = argv[i];
	141	if ( putenv( (char )( new string( string( "__U_COMPILER__=" ) + argv[i]) ).c_str() ) != 0 ) {
	142	cerr << argv[0] << " error, cannot set environment variable." << endl;
	143	exit( EXIT_FAILURE );
	144	} // if
	145
[de62360d]	146	// C specific arguments
[b87a5ed]	147
	148	} else if ( arg == "-v" ) {
	149	verbose = true; // verbosity required
	150	args[nargs] = argv[i]; // pass the argument along
	151	nargs += 1;
	152	} else if ( arg == "-g" ) {
	153	debugging = true; // symbolic debugging required
	154	args[nargs] = argv[i]; // pass the argument along
	155	nargs += 1;
[de62360d]	156	} else if ( prefix( arg, "-std=" ) ) {
[53ba273]	157	std_flag = true; // -std=XX provided
[de62360d]	158	args[nargs] = argv[i]; // pass the argument along
	159	nargs += 1;
[b87a5ed]	160	} else if ( prefix( arg, "-B" ) ) {
	161	Bprefix = arg.substr(2); // strip the -B flag
	162	args[nargs] = ( *new string( string("-D__GCC_BPREFIX__=") + Bprefix ) ).c_str();
	163	nargs += 1;
	164	} else if ( prefix( arg, "-b" ) ) {
	165	if ( arg.length() == 2 ) { // separate argument ?
	166	i += 1;
	167	if ( i == argc ) continue; // next argument available ?
	168	arg += argv[i]; // concatenate argument
	169	} // if
	170	// later versions of gcc require the -b option to appear at the start of the command line
	171	shuffle( args, sargs, nargs, 1 ); // make room at front of argument list
	172	args[sargs] = ( *new string( arg ) ).c_str(); // pass the argument along
	173	if ( putenv( (char )( new string( string( "__GCC_MACHINE__=" ) + arg ) ).c_str() ) != 0 ) {
	174	cerr << argv[0] << " error, cannot set environment variable." << endl;
	175	exit( EXIT_FAILURE );
	176	} // if
	177	sargs += 1;
	178	nargs += 1;
	179	} else if ( prefix( arg, "-V" ) ) {
	180	if ( arg.length() == 2 ) { // separate argument ?
	181	i += 1;
	182	if ( i == argc ) continue; // next argument available ?
	183	arg += argv[i]; // concatenate argument
	184	} // if
	185	// later versions of gcc require the -V option to appear at the start of the command line
	186	shuffle( args, sargs, nargs, 1 ); // make room at front of argument list
	187	args[sargs] = ( *new string( arg ) ).c_str(); // pass the argument along
	188	if ( putenv( (char )( new string( string( "__GCC_VERSION__=" ) + arg ) ).c_str() ) != 0 ) {
	189	cerr << argv[0] << " error, cannot set environment variable." << endl;
	190	exit( EXIT_FAILURE );
	191	} // if
	192	sargs += 1;
	193	nargs += 1;
	194	} else if ( arg == "-c" \|\| arg == "-S" \|\| arg == "-E" \|\| arg == "-M" \|\| arg == "-MM" ) {
	195	args[nargs] = argv[i]; // pass the argument along
	196	nargs += 1;
	197	if ( arg == "-E" \|\| arg == "-M" \|\| arg == "-MM" ) {
	198	cpp_flag = true; // cpp only
	199	} // if
	200	link = false; // no linkage required
	201	} else if ( arg[1] == 'l' ) {
	202	// if the user specifies a library, load it after user code
	203	libs[nlibs] = argv[i];
	204	nlibs += 1;
	205	} else {
	206	// concatenate any other arguments
	207	args[nargs] = argv[i];
	208	nargs += 1;
	209	} // if
	210	} else {
	211	// concatenate other arguments
	212	args[nargs] = argv[i];
	213	nargs += 1;
	214	nonoptarg = true;
	215	} // if
	216	} // for
[51b7345]	217
[b87a5ed]	218	#ifdef __DEBUG_H__
	219	cerr << "args:";
	220	for ( int i = 1; i < nargs; i += 1 ) {
	221	cerr << " " << args[i];
	222	} // for
	223	cerr << endl;
	224	#endif // __DEBUG_H__
[51b7345]	225
[b87a5ed]	226	if ( cpp_flag && CFA_flag ) {
	227	cerr << argv[0] << " error, cannot use -E and -CFA flags together." << endl;
	228	exit( EXIT_FAILURE );
	229	} // if
[51b7345]	230
[b87a5ed]	231	string d;
	232	if ( debug ) {
	233	d = "-d";
	234	} // if
[51b7345]	235
[6e4b913]	236	// add the CFA include-library paths, which allow direct access to header files without directory qualification
	237
[b87a5ed]	238	args[nargs] = "-I" CFA_INCDIR;
	239	nargs += 1;
[d0542c4]	240	if ( ! noincstd_flag ) { // do not use during build
	241	args[nargs] = "-I" CFA_INCDIR "/stdhdr";
	242	nargs += 1;
	243	} // if
[76c7f65e]	244	args[nargs] = "-I" CFA_INCDIR "/containers";
	245	nargs += 1;
	246
[b87a5ed]	247	if ( link ) {
	248	// include the cfa library in case it's needed
	249	args[nargs] = "-L" CFA_LIBDIR;
[51b7345]	250	nargs += 1;
[b87a5ed]	251	args[nargs] = "-lcfa";
[51b7345]	252	nargs += 1;
	253	} // if
	254
[b87a5ed]	255	// add the correct set of flags based on the type of compile this is
[8c17ab0]	256
[ec129c4]	257	args[nargs] = ( *new string( string("-D__CFA_MAJOR__=") + Major ) ).c_str();
[51b7345]	258	nargs += 1;
[b87a5ed]	259	args[nargs] = ( *new string( string("-D__CFA_MINOR__=") + Minor ) ).c_str();
[51b7345]	260	nargs += 1;
[ec129c4]	261	args[nargs] = ( *new string( string("-D__CFA_PATCH__=") + Patch ) ).c_str();
[1db21619]	262	nargs += 1;
[4c82a3c]	263	args[nargs] = "-D__CFA__";
	264	nargs += 1;
	265	args[nargs] = "-D__CFORALL__";
[02e5ab6]	266	nargs += 1;
[51b7345]	267
[b87a5ed]	268	if ( cpp_flag ) {
	269	args[nargs] = "-D__CPP__";
	270	nargs += 1;
	271	} // if
[51b7345]	272
[b87a5ed]	273	if ( CFA_flag ) {
[4c82a3c]	274	args[nargs] = "-D__CFA_PREPROCESS_";
[b87a5ed]	275	nargs += 1;
	276	} // if
[51b7345]	277
[b87a5ed]	278	if ( debug ) {
	279	heading += " (debug)";
	280	args[nargs] = "-D__CFA_DEBUG__";
	281	nargs += 1;
	282	} else {
	283	heading += " (no debug)";
	284	} // if
[51b7345]	285
[b87a5ed]	286	if ( Bprefix.length() == 0 ) {
	287	Bprefix = installlibdir;
	288	args[nargs] = ( *new string( string("-D__GCC_BPREFIX__=") + Bprefix ) ).c_str();
	289	nargs += 1;
	290	} // if
[51b7345]	291
[b87a5ed]	292	// execute the compilation command
[51b7345]	293
[b87a5ed]	294	args[0] = compiler_path.c_str(); // set compiler command for exec
	295	// find actual name of the compiler independent of the path to it
	296	int p = compiler_path.find_last_of( '/' ); // scan r -> l for first '/'
	297	if ( p == -1 ) {
	298	compiler_name = compiler_path;
	299	} else {
	300	compiler_name = *new string( compiler_path.substr( p + 1 ) );
	301	} // if
[51b7345]	302
[b87a5ed]	303	if ( prefix( compiler_name, "gcc" ) ) { // allow suffix on gcc name
	304	args[nargs] = "-no-integrated-cpp";
	305	nargs += 1;
[76c7f65e]	306	args[nargs] = "-Wno-deprecated";
[b87a5ed]	307	nargs += 1;
[de62360d]	308	if ( ! std_flag ) { // default c99, if none specified
[53ba273]	309	args[nargs] = "-std=gnu99";
[de62360d]	310	nargs += 1;
	311	} // if
[76c7f65e]	312	args[nargs] = "-fgnu89-inline";
[6e991d6]	313	nargs += 1;
[b87a5ed]	314	args[nargs] = ( *new string( string("-B") + Bprefix + "/" ) ).c_str();
	315	nargs += 1;
[d3b7937]	316	args[nargs] = "-lm";
	317	nargs += 1;
[b87a5ed]	318	} else {
[e24f13a]	319	cerr << argv[0] << " error, compiler \"" << compiler_name << "\" unsupported." << endl;
[b87a5ed]	320	exit( EXIT_FAILURE );
	321	} // if
[51b7345]	322
[b87a5ed]	323	for ( int i = 0; i < nlibs; i += 1 ) { // copy non-user libraries after all user libraries
	324	args[nargs] = libs[i];
	325	nargs += 1;
	326	} // for
[51b7345]	327
[b87a5ed]	328	args[nargs] = NULL; // terminate with NULL
[51b7345]	329
	330	#ifdef __DEBUG_H__
[b87a5ed]	331	cerr << "nargs: " << nargs << endl;
	332	cerr << "args:" << endl;
	333	for ( int i = 0; args[i] != NULL; i += 1 ) {
	334	cerr << " \"" << args[i] << "\"" << endl;
	335	} // for
[51b7345]	336	#endif // __DEBUG_H__
	337
[b87a5ed]	338	if ( ! quiet ) {
	339	cerr << "CFA " << "Version " << Version << heading << endl;
	340
	341	if ( help ) {
	342	cerr <<
	343	"-debug\t\t\t: use cfa runtime with debug checking" << endl <<
	344	"-help\t\t\t: print this help message" << endl <<
	345	"-quiet\t\t\t: print no messages from the cfa command" << endl <<
	346	"-CFA\t\t\t: run the cpp preprocessor and the cfa-cpp translator" << endl <<
	347	"-XCFA -cfa-cpp-flag\t: pass next flag as-is to the cfa-cpp translator" << endl <<
	348	"...\t\t\t: any other " << compiler_name << " flags" << endl;
	349	} // if
[51b7345]	350	} // if
	351
[b87a5ed]	352	if ( verbose ) {
	353	if ( argc == 2 ) exit( EXIT_SUCCESS ); // if only the -v flag is specified, do not invoke gcc
[51b7345]	354
[b87a5ed]	355	for ( int i = 0; args[i] != NULL; i += 1 ) {
	356	cerr << args[i] << " ";
	357	} // for
	358	cerr << endl;
	359	} // if
[51b7345]	360
[b87a5ed]	361	if ( ! nonoptarg ) {
	362	cerr << argv[0] << " error, no input files" << endl;
	363	exit( EXIT_FAILURE );
	364	} // if
[51b7345]	365
[b87a5ed]	366	// execute the command and return the result
[51b7345]	367
[b87a5ed]	368	execvp( args[0], (char const )args ); // should not return
	369	perror( "CFA Translator error: cfa level, execvp" );
	370	exit( EXIT_FAILURE );
[51b7345]	371	} // main
	372
	373	// Local Variables: //
[b87a5ed]	374	// tab-width: 4 //
	375	// mode: c++ //
[51b7345]	376	// compile-command: "make install" //
	377	// End: //

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