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source: src/driver/cfa.cc @ 6e4b913

ADTaaron-thesisarm-ehast-experimentalcleanup-dtorsctordeferred_resndemanglerenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxmemorynew-astnew-ast-unique-exprnew-envno_listpersistent-indexerpthread-emulationqualifiedEnumresolv-newwith_gc

Last change on this file since 6e4b913 was 6e4b913, checked in by Peter A. Buhr <pabuhr@…>, 8 years ago
allow 32-bit compilation of cfa-cpp, and 32-bit compilation of CFA programs (including CFA libraries)
Property mode set to `100644`
File size: 12.2 KB

Line
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	//
7	// cfa.cc --
8	//
9	// Author : Peter A. Buhr
10	// Created On : Tue Aug 20 13:44:49 2002
11	// Last Modified By : Peter A. Buhr
12	// Last Modified On : Thu Jul 7 08:56:01 2016
13	// Update Count : 144
14	//
15
16	#include <iostream>
17	#include <cstdio> // perror
18	#include <cstdlib> // putenv, exit
19	#include <unistd.h> // execvp
20	#include <string> // STL version
21
22	#include "config.h" // configure info
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 ) {
33	return arg.substr( 0, pre.size() ) == pre;
34	} // prefix
35
36
37	void shuffle( const char *args[], int S, int E, int N ) {
38	// S & E index 1 passed the end so adjust with -1
39	#ifdef __DEBUG_H__
40	cerr << "shuffle:" << S << " " << E << " " << N << endl;
41	#endif // __DEBUG_H__
42	for ( int j = E-1 + N; j > S-1 + N; j -=1 ) {
43	#ifdef __DEBUG_H__
44	cerr << "\t" << j << " " << j-N << endl;
45	#endif // __DEBUG_H__
46	args[j] = args[j-N];
47	} // for
48	} // shuffle
49
50
51	int main( int argc, char *argv[] ) {
52	string Version( VERSION ); // current version number from CONFIG
53	string Major( "0" ), Minor( "0" ), Patch( "0" ); // default version numbers
54
55	int posn1 = Version.find( "." ); // find the divider between major and minor version numbers
56	if ( posn1 == -1 ) { // not there ?
57	Major = Version;
58	} else {
59	Major = Version.substr( 0, posn1 );
60	int posn2 = Version.find( ".", posn1 + 1 ); // find the divider between minor and patch numbers
61	if ( posn2 == -1 ) { // not there ?
62	Minor = Version.substr( posn1 );
63	} else {
64	Minor = Version.substr( posn1 + 1, posn2 - posn1 - 1 );
65	Patch = Version.substr( posn2 + 1 );
66	} // if
67	} // if
68
69	string installincdir( CFA_INCDIR ); // fixed location of include files
70	string installlibdir( CFA_LIBDIR ); // fixed location of cc1 and cfa-cpp commands
71
72	string heading; // banner printed at start of cfa compilation
73	string arg; // current command-line argument during command-line parsing
74	string Bprefix; // path where gcc looks for compiler command steps
75	string langstd; // language standard
76
77	string compiler_path( CFA_BACKEND_CC ); // path/name of C compiler
78	string compiler_name; // name of C compiler
79
80	bool nonoptarg = false; // indicates non-option argument specified
81	bool link = true; // linking as well as compiling
82	bool verbose = false; // -v flag
83	bool quiet = false; // -quiet flag
84	bool debug = true; // -debug flag
85	bool help = false; // -help flag
86	bool CFA_flag = false; // -CFA flag
87	bool cpp_flag = false; // -E or -M flag, preprocessor only
88	bool std_flag = false; // -std= flag
89	bool debugging __attribute(( unused )) = false; // -g flag
90
91	const char *args[argc + 100]; // cfa command line values, plus some space for additional flags
92	int sargs = 1; // starting location for arguments in args list
93	int nargs = sargs; // number of arguments in args list; 0 => command name
94
95	const char *libs[argc + 20]; // non-user libraries must come separately, plus some added libraries and flags
96	int nlibs = 0;
97
98	#ifdef __DEBUG_H__
99	cerr << "CFA:" << endl;
100	#endif // __DEBUG_H__
101
102	// process command-line arguments
103
104	for ( int i = 1; i < argc; i += 1 ) {
105	#ifdef __DEBUG_H__
106	cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
107	#endif // __DEBUG_H__
108	arg = argv[i]; // convert to string value
109	#ifdef __DEBUG_H__
110	cerr << "arg:\"" << arg << "\"" << endl;
111	#endif // __DEBUG_H__
112	if ( prefix( arg, "-" ) ) {
113	// pass through arguments
114
115	if ( arg == "-Xlinker" \|\| arg == "-o" ) {
116	args[nargs] = argv[i]; // pass the argument along
117	nargs += 1;
118	i += 1;
119	if ( i == argc ) continue; // next argument available ?
120	args[nargs] = argv[i]; // pass the argument along
121	nargs += 1;
122	} else if ( arg == "-XCFA" ) { // CFA pass through
123	i += 1;
124	args[nargs] = ( *new string( string("-D__CFA_FLAG__=") + argv[i] ) ).c_str();
125	nargs += 1;
126
127	// CFA specific arguments
128
129	} else if ( arg == "-CFA" ) {
130	CFA_flag = true; // strip the -CFA flag
131	link = false;
132	args[nargs] = "-E"; // replace the argument with -E
133	nargs += 1;
134	} else if ( arg == "-debug" ) {
135	debug = true; // strip the debug flag
136	} else if ( arg == "-nodebug" ) {
137	debug = false; // strip the nodebug flag
138	} else if ( arg == "-quiet" ) {
139	quiet = true; // strip the quiet flag
140	} else if ( arg == "-noquiet" ) {
141	quiet = false; // strip the noquiet flag
142	} else if ( arg == "-help" ) {
143	help = true; // strip the help flag
144	} else if ( arg == "-nohelp" ) {
145	help = false; // strip the nohelp flag
146	} else if ( arg == "-compiler" ) {
147	// use the user specified compiler
148	i += 1;
149	if ( i == argc ) continue; // next argument available ?
150	compiler_path = argv[i];
151	if ( putenv( (char )( new string( string( "__U_COMPILER__=" ) + argv[i]) ).c_str() ) != 0 ) {
152	cerr << argv[0] << " error, cannot set environment variable." << endl;
153	exit( EXIT_FAILURE );
154	} // if
155
156	// C specific arguments
157
158	} else if ( arg == "-v" ) {
159	verbose = true; // verbosity required
160	args[nargs] = argv[i]; // pass the argument along
161	nargs += 1;
162	} else if ( arg == "-g" ) {
163	debugging = true; // symbolic debugging required
164	args[nargs] = argv[i]; // pass the argument along
165	nargs += 1;
166	} else if ( prefix( arg, "-std=" ) ) {
167	std_flag = true; // -std=XX provided
168	args[nargs] = argv[i]; // pass the argument along
169	nargs += 1;
170	} else if ( prefix( arg, "-B" ) ) {
171	Bprefix = arg.substr(2); // strip the -B flag
172	args[nargs] = ( *new string( string("-D__GCC_BPREFIX__=") + Bprefix ) ).c_str();
173	nargs += 1;
174	} else if ( prefix( arg, "-b" ) ) {
175	if ( arg.length() == 2 ) { // separate argument ?
176	i += 1;
177	if ( i == argc ) continue; // next argument available ?
178	arg += argv[i]; // concatenate argument
179	} // if
180	// later versions of gcc require the -b option to appear at the start of the command line
181	shuffle( args, sargs, nargs, 1 ); // make room at front of argument list
182	args[sargs] = ( *new string( arg ) ).c_str(); // pass the argument along
183	if ( putenv( (char )( new string( string( "__GCC_MACHINE__=" ) + arg ) ).c_str() ) != 0 ) {
184	cerr << argv[0] << " error, cannot set environment variable." << endl;
185	exit( EXIT_FAILURE );
186	} // if
187	sargs += 1;
188	nargs += 1;
189	} else if ( prefix( arg, "-V" ) ) {
190	if ( arg.length() == 2 ) { // separate argument ?
191	i += 1;
192	if ( i == argc ) continue; // next argument available ?
193	arg += argv[i]; // concatenate argument
194	} // if
195	// later versions of gcc require the -V option to appear at the start of the command line
196	shuffle( args, sargs, nargs, 1 ); // make room at front of argument list
197	args[sargs] = ( *new string( arg ) ).c_str(); // pass the argument along
198	if ( putenv( (char )( new string( string( "__GCC_VERSION__=" ) + arg ) ).c_str() ) != 0 ) {
199	cerr << argv[0] << " error, cannot set environment variable." << endl;
200	exit( EXIT_FAILURE );
201	} // if
202	sargs += 1;
203	nargs += 1;
204	} else if ( arg == "-c" \|\| arg == "-S" \|\| arg == "-E" \|\| arg == "-M" \|\| arg == "-MM" ) {
205	args[nargs] = argv[i]; // pass the argument along
206	nargs += 1;
207	if ( arg == "-E" \|\| arg == "-M" \|\| arg == "-MM" ) {
208	cpp_flag = true; // cpp only
209	} // if
210	link = false; // no linkage required
211	} else if ( arg[1] == 'l' ) {
212	// if the user specifies a library, load it after user code
213	libs[nlibs] = argv[i];
214	nlibs += 1;
215	} else {
216	// concatenate any other arguments
217	args[nargs] = argv[i];
218	nargs += 1;
219	} // if
220	} else {
221	// concatenate other arguments
222	args[nargs] = argv[i];
223	nargs += 1;
224	nonoptarg = true;
225	} // if
226	} // for
227
228	#ifdef __DEBUG_H__
229	cerr << "args:";
230	for ( int i = 1; i < nargs; i += 1 ) {
231	cerr << " " << args[i];
232	} // for
233	cerr << endl;
234	#endif // __DEBUG_H__
235
236	if ( cpp_flag && CFA_flag ) {
237	cerr << argv[0] << " error, cannot use -E and -CFA flags together." << endl;
238	exit( EXIT_FAILURE );
239	} // if
240
241	string d;
242	if ( debug ) {
243	d = "-d";
244	} // if
245
246	// add the CFA include-library paths, which allow direct access to header files without directory qualification
247
248	args[nargs] = "-I" CFA_INCDIR;
249	nargs += 1;
250	args[nargs] = "-I" CFA_INCDIR "/stdhdr";
251	nargs += 1;
252	args[nargs] = "-I" CFA_INCDIR "/containers";
253	nargs += 1;
254
255	if ( link ) {
256	// include the cfa library in case it's needed
257	args[nargs] = "-L" CFA_LIBDIR;
258	nargs += 1;
259	args[nargs] = "-lcfa";
260	nargs += 1;
261	} // if
262
263	// add the correct set of flags based on the type of compile this is
264
265	args[nargs] = ( *new string( string("-D__CFA__=") + Major ) ).c_str();
266	nargs += 1;
267	args[nargs] = ( *new string( string("-D__CFA_MINOR__=") + Minor ) ).c_str();
268	nargs += 1;
269	args[nargs] = ( *new string( string("-D__CFA_PATCHLEVEL__=") + Patch ) ).c_str();
270	nargs += 1;
271	args[nargs] = "-D__CFA__";
272	nargs += 1;
273	args[nargs] = "-D__CFORALL__";
274	nargs += 1;
275
276	if ( cpp_flag ) {
277	args[nargs] = "-D__CPP__";
278	nargs += 1;
279	} // if
280
281	if ( CFA_flag ) {
282	args[nargs] = "-D__CFA_PREPROCESS_";
283	nargs += 1;
284	} // if
285
286	if ( debug ) {
287	heading += " (debug)";
288	args[nargs] = "-D__CFA_DEBUG__";
289	nargs += 1;
290	} else {
291	heading += " (no debug)";
292	} // if
293
294	if ( Bprefix.length() == 0 ) {
295	Bprefix = installlibdir;
296	args[nargs] = ( *new string( string("-D__GCC_BPREFIX__=") + Bprefix ) ).c_str();
297	nargs += 1;
298	} // if
299
300	// execute the compilation command
301
302	args[0] = compiler_path.c_str(); // set compiler command for exec
303	// find actual name of the compiler independent of the path to it
304	int p = compiler_path.find_last_of( '/' ); // scan r -> l for first '/'
305	if ( p == -1 ) {
306	compiler_name = compiler_path;
307	} else {
308	compiler_name = *new string( compiler_path.substr( p + 1 ) );
309	} // if
310
311	if ( prefix( compiler_name, "gcc" ) ) { // allow suffix on gcc name
312	args[nargs] = "-no-integrated-cpp";
313	nargs += 1;
314	args[nargs] = "-Wno-deprecated";
315	nargs += 1;
316	if ( ! std_flag ) { // default c99, if none specified
317	args[nargs] = "-std=gnu99";
318	nargs += 1;
319	} // if
320	args[nargs] = "-fgnu89-inline";
321	nargs += 1;
322	args[nargs] = ( *new string( string("-B") + Bprefix + "/" ) ).c_str();
323	nargs += 1;
324	args[nargs] = "-lm";
325	nargs += 1;
326	} else {
327	cerr << argv[0] << " error, compiler \"" << compiler_name << "\" unsupported." << endl;
328	exit( EXIT_FAILURE );
329	} // if
330
331	for ( int i = 0; i < nlibs; i += 1 ) { // copy non-user libraries after all user libraries
332	args[nargs] = libs[i];
333	nargs += 1;
334	} // for
335
336	args[nargs] = NULL; // terminate with NULL
337
338	#ifdef __DEBUG_H__
339	cerr << "nargs: " << nargs << endl;
340	cerr << "args:" << endl;
341	for ( int i = 0; args[i] != NULL; i += 1 ) {
342	cerr << " \"" << args[i] << "\"" << endl;
343	} // for
344	#endif // __DEBUG_H__
345
346	if ( ! quiet ) {
347	cerr << "CFA " << "Version " << Version << heading << endl;
348
349	if ( help ) {
350	cerr <<
351	"-debug\t\t\t: use cfa runtime with debug checking" << endl <<
352	"-help\t\t\t: print this help message" << endl <<
353	"-quiet\t\t\t: print no messages from the cfa command" << endl <<
354	"-CFA\t\t\t: run the cpp preprocessor and the cfa-cpp translator" << endl <<
355	"-XCFA -cfa-cpp-flag\t: pass next flag as-is to the cfa-cpp translator" << endl <<
356	"...\t\t\t: any other " << compiler_name << " flags" << endl;
357	} // if
358	} // if
359
360	if ( verbose ) {
361	if ( argc == 2 ) exit( EXIT_SUCCESS ); // if only the -v flag is specified, do not invoke gcc
362
363	for ( int i = 0; args[i] != NULL; i += 1 ) {
364	cerr << args[i] << " ";
365	} // for
366	cerr << endl;
367	} // if
368
369	if ( ! nonoptarg ) {
370	cerr << argv[0] << " error, no input files" << endl;
371	exit( EXIT_FAILURE );
372	} // if
373
374	// execute the command and return the result
375
376	execvp( args[0], (char const )args ); // should not return
377	perror( "CFA Translator error: cfa level, execvp" );
378	exit( EXIT_FAILURE );
379	} // main
380
381	// Local Variables: //
382	// tab-width: 4 //
383	// mode: c++ //
384	// compile-command: "make install" //
385	// End: //

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