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source: driver/cfa.cc @ 843054c2

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Last change on this file since 843054c2 was b87a5ed, checked in by Peter A. Buhr <pabuhr@…>, 9 years ago
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Property mode set to `100644`
File size: 11.4 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	//
[51b7345]	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
[b87a5ed]	12	// Last Modified On : Sat May 16 07:47:05 2015
	13	// Update Count : 111
	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;
	27
	28
	29	//#define __DEBUG_H__
	30
	31
	32	bool prefix( string arg, string pre ) {
[b87a5ed]	33	return arg.substr( 0, pre.size() ) == pre;
[51b7345]	34	} // prefix
	35
	36
	37	void shuffle( const char *args[], int S, int E, int N ) {
[b87a5ed]	38	// S & E index 1 passed the end so adjust with -1
[51b7345]	39	#ifdef __DEBUG_H__
[b87a5ed]	40	cerr << "shuffle:" << S << " " << E << " " << N << endl;
[51b7345]	41	#endif // __DEBUG_H__
[b87a5ed]	42	for ( int j = E-1 + N; j > S-1 + N; j -=1 ) {
[51b7345]	43	#ifdef __DEBUG_H__
[b87a5ed]	44	cerr << "\t" << j << " " << j-N << endl;
[51b7345]	45	#endif // __DEBUG_H__
[b87a5ed]	46	args[j] = args[j-N];
	47	} // for
[51b7345]	48	} // shuffle
	49
	50
	51	int main( int argc, char *argv[] ) {
[b87a5ed]	52	string Version( VERSION ); // current version number from CONFIG
	53	string Major( "0" ), Minor( "0" ), Patch( "0" ); // default version numbers
	54	int posn1 = Version.find( "." ); // find the divider between major and minor version numbers
	55	if ( posn1 == -1 ) { // not there ?
	56	Major = Version;
[51b7345]	57	} else {
[b87a5ed]	58	Major = Version.substr( 0, posn1 );
	59	int posn2 = Version.find( ".", posn1 + 1 ); // find the divider between minor and patch numbers
	60	if ( posn2 == -1 ) { // not there ?
	61	Minor = Version.substr( posn1 );
	62	} else {
	63	Minor = Version.substr( posn1 + 1, posn2 - posn1 - 1 );
	64	Patch = Version.substr( posn2 + 1 );
	65	} // if
[51b7345]	66	} // if
	67
[b87a5ed]	68	string installincdir( CFA_INCDIR ); // fixed location of cc1 and cfa-cpp commands
	69	string installlibdir( CFA_LIBDIR ); // fixed location of include files
[51b7345]	70
[b87a5ed]	71	string heading; // banner printed at start of cfa compilation
	72	string arg; // current command-line argument during command-line parsing
	73	string Bprefix; // path where gcc looks for compiler command steps
	74	string langstd; // language standard
[51b7345]	75
[b87a5ed]	76	string compiler_path( GCC_PATH ); // path/name of C compiler
	77	string compiler_name; // name of C compiler
[51b7345]	78
[b87a5ed]	79	bool nonoptarg = false; // indicates non-option argument specified
	80	bool link = true; // linking as well as compiling
	81	bool verbose = false; // -v flag
	82	bool quiet = false; // -quiet flag
	83	bool debug = true; // -debug flag
	84	bool help = false; // -help flag
	85	bool CFA_flag = false; // -CFA flag
	86	bool cpp_flag = false; // -E or -M flag, preprocessor only
	87	bool debugging = false; // -g flag
[51b7345]	88
[b87a5ed]	89	const char *args[argc + 100]; // cfa command line values, plus some space for additional flags
	90	int sargs = 1; // starting location for arguments in args list
	91	int nargs = sargs; // number of arguments in args list; 0 => command name
[51b7345]	92
[b87a5ed]	93	const char *libs[argc + 20]; // non-user libraries must come separately, plus some added libraries and flags
	94	int nlibs = 0;
[51b7345]	95
	96	#ifdef __DEBUG_H__
[b87a5ed]	97	cerr << "CFA:" << endl;
[51b7345]	98	#endif // __DEBUG_H__
	99
[b87a5ed]	100	// process command-line arguments
[51b7345]	101
[b87a5ed]	102	for ( int i = 1; i < argc; i += 1 ) {
[51b7345]	103	#ifdef __DEBUG_H__
[b87a5ed]	104	cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
[51b7345]	105	#endif // __DEBUG_H__
[b87a5ed]	106	arg = argv[i]; // convert to string value
[51b7345]	107	#ifdef __DEBUG_H__
[b87a5ed]	108	cerr << "arg:\"" << arg << "\"" << endl;
[51b7345]	109	#endif // __DEBUG_H__
[b87a5ed]	110	if ( prefix( arg, "-" ) ) {
	111	// pass through arguments
	112
	113	if ( arg == "-Xlinker" \|\| arg == "-o" ) {
	114	args[nargs] = argv[i]; // pass the argument along
	115	nargs += 1;
	116	i += 1;
	117	if ( i == argc ) continue; // next argument available ?
	118	args[nargs] = argv[i]; // pass the argument along
	119	nargs += 1;
	120	} else if ( arg == "-XCFA" ) { // CFA pass through
	121	i += 1;
	122	args[nargs] = ( *new string( string("-D__CFA_FLAG__=") + argv[i] ) ).c_str();
	123	nargs += 1;
	124
	125	// CFA specific arguments
	126
	127	} else if ( arg == "-CFA" ) {
	128	CFA_flag = true; // strip the -CFA flag
	129	link = false;
	130	args[nargs] = "-E"; // replace the argument with -E
	131	nargs += 1;
	132	} else if ( arg == "-debug" ) {
	133	debug = true; // strip the debug flag
	134	} else if ( arg == "-nodebug" ) {
	135	debug = false; // strip the nodebug flag
	136	} else if ( arg == "-quiet" ) {
	137	quiet = true; // strip the quiet flag
	138	} else if ( arg == "-noquiet" ) {
	139	quiet = false; // strip the noquiet flag
	140	} else if ( arg == "-help" ) {
	141	help = true; // strip the help flag
	142	} else if ( arg == "-nohelp" ) {
	143	help = false; // strip the nohelp flag
	144	} else if ( arg == "-compiler" ) {
	145	// use the user specified compiler
	146	i += 1;
	147	if ( i == argc ) continue; // next argument available ?
	148	compiler_path = argv[i];
	149	if ( putenv( (char )( new string( string( "__U_COMPILER__=" ) + argv[i]) ).c_str() ) != 0 ) {
	150	cerr << argv[0] << " error, cannot set environment variable." << endl;
	151	exit( EXIT_FAILURE );
	152	} // if
	153
	154	// C++ specific arguments
	155
	156	} else if ( arg == "-v" ) {
	157	verbose = true; // verbosity required
	158	args[nargs] = argv[i]; // pass the argument along
	159	nargs += 1;
	160	} else if ( arg == "-g" ) {
	161	debugging = true; // symbolic debugging required
	162	args[nargs] = argv[i]; // pass the argument along
	163	nargs += 1;
	164	} else if ( prefix( arg, "-B" ) ) {
	165	Bprefix = arg.substr(2); // strip the -B flag
	166	args[nargs] = ( *new string( string("-D__GCC_BPREFIX__=") + Bprefix ) ).c_str();
	167	nargs += 1;
	168	} else if ( prefix( arg, "-b" ) ) {
	169	if ( arg.length() == 2 ) { // separate argument ?
	170	i += 1;
	171	if ( i == argc ) continue; // next argument available ?
	172	arg += argv[i]; // concatenate argument
	173	} // if
	174	// later versions of gcc require the -b option to appear at the start of the command line
	175	shuffle( args, sargs, nargs, 1 ); // make room at front of argument list
	176	args[sargs] = ( *new string( arg ) ).c_str(); // pass the argument along
	177	if ( putenv( (char )( new string( string( "__GCC_MACHINE__=" ) + arg ) ).c_str() ) != 0 ) {
	178	cerr << argv[0] << " error, cannot set environment variable." << endl;
	179	exit( EXIT_FAILURE );
	180	} // if
	181	sargs += 1;
	182	nargs += 1;
	183	} else if ( prefix( arg, "-V" ) ) {
	184	if ( arg.length() == 2 ) { // separate argument ?
	185	i += 1;
	186	if ( i == argc ) continue; // next argument available ?
	187	arg += argv[i]; // concatenate argument
	188	} // if
	189	// later versions of gcc require the -V option to appear at the start of the command line
	190	shuffle( args, sargs, nargs, 1 ); // make room at front of argument list
	191	args[sargs] = ( *new string( arg ) ).c_str(); // pass the argument along
	192	if ( putenv( (char )( new string( string( "__GCC_VERSION__=" ) + arg ) ).c_str() ) != 0 ) {
	193	cerr << argv[0] << " error, cannot set environment variable." << endl;
	194	exit( EXIT_FAILURE );
	195	} // if
	196	sargs += 1;
	197	nargs += 1;
	198	} else if ( arg == "-c" \|\| arg == "-S" \|\| arg == "-E" \|\| arg == "-M" \|\| arg == "-MM" ) {
	199	args[nargs] = argv[i]; // pass the argument along
	200	nargs += 1;
	201	if ( arg == "-E" \|\| arg == "-M" \|\| arg == "-MM" ) {
	202	cpp_flag = true; // cpp only
	203	} // if
	204	link = false; // no linkage required
	205	} else if ( arg[1] == 'l' ) {
	206	// if the user specifies a library, load it after user code
	207	libs[nlibs] = argv[i];
	208	nlibs += 1;
	209	} else {
	210	// concatenate any other arguments
	211	args[nargs] = argv[i];
	212	nargs += 1;
	213	} // if
	214	} else {
	215	// concatenate other arguments
	216	args[nargs] = argv[i];
	217	nargs += 1;
	218	nonoptarg = true;
	219	} // if
	220	} // for
[51b7345]	221
[b87a5ed]	222	#ifdef __DEBUG_H__
	223	cerr << "args:";
	224	for ( int i = 1; i < nargs; i += 1 ) {
	225	cerr << " " << args[i];
	226	} // for
	227	cerr << endl;
	228	#endif // __DEBUG_H__
[51b7345]	229
[b87a5ed]	230	if ( cpp_flag && CFA_flag ) {
	231	cerr << argv[0] << " error, cannot use -E and -CFA flags together." << endl;
	232	exit( EXIT_FAILURE );
	233	} // if
[51b7345]	234
[b87a5ed]	235	string d;
	236	if ( debug ) {
	237	d = "-d";
	238	} // if
[51b7345]	239
[b87a5ed]	240	args[nargs] = "-I" CFA_INCDIR;
	241	nargs += 1;
[51b7345]	242
[b87a5ed]	243	if ( link ) {
	244	// include the cfa library in case it's needed
	245	args[nargs] = "-L" CFA_LIBDIR;
[51b7345]	246	nargs += 1;
[b87a5ed]	247	args[nargs] = "-lcfa";
[51b7345]	248	nargs += 1;
	249	} // if
	250
[b87a5ed]	251	// add the correct set of flags based on the type of compile this is
[8c17ab0]	252
[b87a5ed]	253	args[nargs] = ( *new string( string("-D__CFA_MAJOR__=") + Major ) ).c_str();
[51b7345]	254	nargs += 1;
[b87a5ed]	255	args[nargs] = ( *new string( string("-D__CFA_MINOR__=") + Minor ) ).c_str();
[51b7345]	256	nargs += 1;
	257
[b87a5ed]	258	if ( cpp_flag ) {
	259	args[nargs] = "-D__CPP__";
	260	nargs += 1;
	261	} // if
[51b7345]	262
[b87a5ed]	263	if ( CFA_flag ) {
	264	args[nargs] = "-D__CFA__";
	265	nargs += 1;
	266	} // if
[51b7345]	267
[b87a5ed]	268	if ( debug ) {
	269	heading += " (debug)";
	270	args[nargs] = "-D__CFA_DEBUG__";
	271	nargs += 1;
	272	} else {
	273	heading += " (no debug)";
	274	} // if
[51b7345]	275
[b87a5ed]	276	if ( Bprefix.length() == 0 ) {
	277	Bprefix = installlibdir;
	278	args[nargs] = ( *new string( string("-D__GCC_BPREFIX__=") + Bprefix ) ).c_str();
	279	nargs += 1;
	280	} // if
[51b7345]	281
[b87a5ed]	282	// execute the compilation command
[51b7345]	283
[b87a5ed]	284	args[0] = compiler_path.c_str(); // set compiler command for exec
	285	// find actual name of the compiler independent of the path to it
	286	int p = compiler_path.find_last_of( '/' ); // scan r -> l for first '/'
	287	if ( p == -1 ) {
	288	compiler_name = compiler_path;
	289	} else {
	290	compiler_name = *new string( compiler_path.substr( p + 1 ) );
	291	} // if
[51b7345]	292
[b87a5ed]	293	if ( prefix( compiler_name, "gcc" ) ) { // allow suffix on gcc name
	294	args[nargs] = "-no-integrated-cpp";
	295	nargs += 1;
	296	args[nargs] = "-Wno-deprecated";
	297	nargs += 1;
	298	args[nargs] = "-std=c99";
	299	nargs += 1;
	300	args[nargs] = ( *new string( string("-B") + Bprefix + "/" ) ).c_str();
	301	nargs += 1;
	302	} else {
	303	cerr << argv[0] << " error, compiler " << compiler_name << " not supported." << endl;
	304	exit( EXIT_FAILURE );
	305	} // if
[51b7345]	306
[b87a5ed]	307	for ( int i = 0; i < nlibs; i += 1 ) { // copy non-user libraries after all user libraries
	308	args[nargs] = libs[i];
	309	nargs += 1;
	310	} // for
[51b7345]	311
[b87a5ed]	312	args[nargs] = NULL; // terminate with NULL
[51b7345]	313
	314	#ifdef __DEBUG_H__
[b87a5ed]	315	cerr << "nargs: " << nargs << endl;
	316	cerr << "args:" << endl;
	317	for ( int i = 0; args[i] != NULL; i += 1 ) {
	318	cerr << " \"" << args[i] << "\"" << endl;
	319	} // for
[51b7345]	320	#endif // __DEBUG_H__
	321
[b87a5ed]	322	if ( ! quiet ) {
	323	cerr << "CFA " << "Version " << Version << heading << endl;
	324
	325	if ( help ) {
	326	cerr <<
	327	"-debug\t\t\t: use cfa runtime with debug checking" << endl <<
	328	"-help\t\t\t: print this help message" << endl <<
	329	"-quiet\t\t\t: print no messages from the cfa command" << endl <<
	330	"-CFA\t\t\t: run the cpp preprocessor and the cfa-cpp translator" << endl <<
	331	"-XCFA -cfa-cpp-flag\t: pass next flag as-is to the cfa-cpp translator" << endl <<
	332	"...\t\t\t: any other " << compiler_name << " flags" << endl;
	333	} // if
[51b7345]	334	} // if
	335
[b87a5ed]	336	if ( verbose ) {
	337	if ( argc == 2 ) exit( EXIT_SUCCESS ); // if only the -v flag is specified, do not invoke gcc
[51b7345]	338
[b87a5ed]	339	for ( int i = 0; args[i] != NULL; i += 1 ) {
	340	cerr << args[i] << " ";
	341	} // for
	342	cerr << endl;
	343	} // if
[51b7345]	344
[b87a5ed]	345	if ( ! nonoptarg ) {
	346	cerr << argv[0] << " error, no input files" << endl;
	347	exit( EXIT_FAILURE );
	348	} // if
[51b7345]	349
[b87a5ed]	350	// execute the command and return the result
[51b7345]	351
[b87a5ed]	352	execvp( args[0], (char const )args ); // should not return
	353	perror( "CFA Translator error: cfa level, execvp" );
	354	exit( EXIT_FAILURE );
[51b7345]	355	} // main
	356
	357	// Local Variables: //
[b87a5ed]	358	// tab-width: 4 //
	359	// mode: c++ //
[51b7345]	360	// compile-command: "make install" //
	361	// End: //

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