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source: src/driver/cfa.cc @ 82dd287

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

Last change on this file since 82dd287 was de62360d, checked in by Peter A. Buhr <pabuhr@…>, 9 years ago
fix computed goto, fixed -std=, implicit typedefs for enum and aggregates, add _Noreturn _Thread_local
Property mode set to `100644`
File size: 11.7 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 : Tue Jun 23 17:47:03 2015
13	// Update Count : 119
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	int posn1 = Version.find( "." ); // find the divider between major and minor version numbers
55	if ( posn1 == -1 ) { // not there ?
56	Major = Version;
57	} else {
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
66	} // if
67
68	string installincdir( CFA_INCDIR ); // fixed location of include files
69	string installlibdir( CFA_LIBDIR ); // fixed location of cc1 and cfa-cpp commands
70
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
75
76	string compiler_path( GCC_PATH ); // path/name of C compiler
77	string compiler_name; // name of C compiler
78
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 std_flag = false; // -std= flag
88	bool debugging = false; // -g flag
89
90	const char *args[argc + 100]; // cfa command line values, plus some space for additional flags
91	int sargs = 1; // starting location for arguments in args list
92	int nargs = sargs; // number of arguments in args list; 0 => command name
93
94	const char *libs[argc + 20]; // non-user libraries must come separately, plus some added libraries and flags
95	int nlibs = 0;
96
97	#ifdef __DEBUG_H__
98	cerr << "CFA:" << endl;
99	#endif // __DEBUG_H__
100
101	// process command-line arguments
102
103	for ( int i = 1; i < argc; i += 1 ) {
104	#ifdef __DEBUG_H__
105	cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
106	#endif // __DEBUG_H__
107	arg = argv[i]; // convert to string value
108	#ifdef __DEBUG_H__
109	cerr << "arg:\"" << arg << "\"" << endl;
110	#endif // __DEBUG_H__
111	if ( prefix( arg, "-" ) ) {
112	// pass through arguments
113
114	if ( arg == "-Xlinker" \|\| arg == "-o" ) {
115	args[nargs] = argv[i]; // pass the argument along
116	nargs += 1;
117	i += 1;
118	if ( i == argc ) continue; // next argument available ?
119	args[nargs] = argv[i]; // pass the argument along
120	nargs += 1;
121	} else if ( arg == "-XCFA" ) { // CFA pass through
122	i += 1;
123	args[nargs] = ( *new string( string("-D__CFA_FLAG__=") + argv[i] ) ).c_str();
124	nargs += 1;
125
126	// CFA specific arguments
127
128	} else if ( arg == "-CFA" ) {
129	CFA_flag = true; // strip the -CFA flag
130	link = false;
131	args[nargs] = "-E"; // replace the argument with -E
132	nargs += 1;
133	} else if ( arg == "-debug" ) {
134	debug = true; // strip the debug flag
135	} else if ( arg == "-nodebug" ) {
136	debug = false; // strip the nodebug flag
137	} else if ( arg == "-quiet" ) {
138	quiet = true; // strip the quiet flag
139	} else if ( arg == "-noquiet" ) {
140	quiet = false; // strip the noquiet flag
141	} else if ( arg == "-help" ) {
142	help = true; // strip the help flag
143	} else if ( arg == "-nohelp" ) {
144	help = false; // strip the nohelp flag
145	} else if ( arg == "-compiler" ) {
146	// use the user specified compiler
147	i += 1;
148	if ( i == argc ) continue; // next argument available ?
149	compiler_path = argv[i];
150	if ( putenv( (char )( new string( string( "__U_COMPILER__=" ) + argv[i]) ).c_str() ) != 0 ) {
151	cerr << argv[0] << " error, cannot set environment variable." << endl;
152	exit( EXIT_FAILURE );
153	} // if
154
155	// C specific arguments
156
157	} else if ( arg == "-v" ) {
158	verbose = true; // verbosity required
159	args[nargs] = argv[i]; // pass the argument along
160	nargs += 1;
161	} else if ( arg == "-g" ) {
162	debugging = true; // symbolic debugging required
163	args[nargs] = argv[i]; // pass the argument along
164	nargs += 1;
165	} else if ( prefix( arg, "-std=" ) ) {
166	std_flag = true; // std=XX provided
167	args[nargs] = argv[i]; // pass the argument along
168	nargs += 1;
169	} else if ( prefix( arg, "-B" ) ) {
170	Bprefix = arg.substr(2); // strip the -B flag
171	args[nargs] = ( *new string( string("-D__GCC_BPREFIX__=") + Bprefix ) ).c_str();
172	nargs += 1;
173	} else if ( prefix( arg, "-b" ) ) {
174	if ( arg.length() == 2 ) { // separate argument ?
175	i += 1;
176	if ( i == argc ) continue; // next argument available ?
177	arg += argv[i]; // concatenate argument
178	} // if
179	// later versions of gcc require the -b option to appear at the start of the command line
180	shuffle( args, sargs, nargs, 1 ); // make room at front of argument list
181	args[sargs] = ( *new string( arg ) ).c_str(); // pass the argument along
182	if ( putenv( (char )( new string( string( "__GCC_MACHINE__=" ) + arg ) ).c_str() ) != 0 ) {
183	cerr << argv[0] << " error, cannot set environment variable." << endl;
184	exit( EXIT_FAILURE );
185	} // if
186	sargs += 1;
187	nargs += 1;
188	} else if ( prefix( arg, "-V" ) ) {
189	if ( arg.length() == 2 ) { // separate argument ?
190	i += 1;
191	if ( i == argc ) continue; // next argument available ?
192	arg += argv[i]; // concatenate argument
193	} // if
194	// later versions of gcc require the -V option to appear at the start of the command line
195	shuffle( args, sargs, nargs, 1 ); // make room at front of argument list
196	args[sargs] = ( *new string( arg ) ).c_str(); // pass the argument along
197	if ( putenv( (char )( new string( string( "__GCC_VERSION__=" ) + arg ) ).c_str() ) != 0 ) {
198	cerr << argv[0] << " error, cannot set environment variable." << endl;
199	exit( EXIT_FAILURE );
200	} // if
201	sargs += 1;
202	nargs += 1;
203	} else if ( arg == "-c" \|\| arg == "-S" \|\| arg == "-E" \|\| arg == "-M" \|\| arg == "-MM" ) {
204	args[nargs] = argv[i]; // pass the argument along
205	nargs += 1;
206	if ( arg == "-E" \|\| arg == "-M" \|\| arg == "-MM" ) {
207	cpp_flag = true; // cpp only
208	} // if
209	link = false; // no linkage required
210	} else if ( arg[1] == 'l' ) {
211	// if the user specifies a library, load it after user code
212	libs[nlibs] = argv[i];
213	nlibs += 1;
214	} else {
215	// concatenate any other arguments
216	args[nargs] = argv[i];
217	nargs += 1;
218	} // if
219	} else {
220	// concatenate other arguments
221	args[nargs] = argv[i];
222	nargs += 1;
223	nonoptarg = true;
224	} // if
225	} // for
226
227	#ifdef __DEBUG_H__
228	cerr << "args:";
229	for ( int i = 1; i < nargs; i += 1 ) {
230	cerr << " " << args[i];
231	} // for
232	cerr << endl;
233	#endif // __DEBUG_H__
234
235	if ( cpp_flag && CFA_flag ) {
236	cerr << argv[0] << " error, cannot use -E and -CFA flags together." << endl;
237	exit( EXIT_FAILURE );
238	} // if
239
240	string d;
241	if ( debug ) {
242	d = "-d";
243	} // if
244
245	args[nargs] = "-I" CFA_INCDIR;
246	nargs += 1;
247
248	if ( link ) {
249	// include the cfa library in case it's needed
250	args[nargs] = "-L" CFA_LIBDIR;
251	nargs += 1;
252	args[nargs] = "-lcfa";
253	nargs += 1;
254	} // if
255
256	// add the correct set of flags based on the type of compile this is
257
258	args[nargs] = ( *new string( string("-D__CFA_MAJOR__=") + Major ) ).c_str();
259	nargs += 1;
260	args[nargs] = ( *new string( string("-D__CFA_MINOR__=") + Minor ) ).c_str();
261	nargs += 1;
262
263	if ( cpp_flag ) {
264	args[nargs] = "-D__CPP__";
265	nargs += 1;
266	} // if
267
268	if ( CFA_flag ) {
269	args[nargs] = "-D__CFA__";
270	nargs += 1;
271	} // if
272
273	if ( debug ) {
274	heading += " (debug)";
275	args[nargs] = "-D__CFA_DEBUG__";
276	nargs += 1;
277	} else {
278	heading += " (no debug)";
279	} // if
280
281	if ( Bprefix.length() == 0 ) {
282	Bprefix = installlibdir;
283	args[nargs] = ( *new string( string("-D__GCC_BPREFIX__=") + Bprefix ) ).c_str();
284	nargs += 1;
285	} // if
286
287	// execute the compilation command
288
289	args[0] = compiler_path.c_str(); // set compiler command for exec
290	// find actual name of the compiler independent of the path to it
291	int p = compiler_path.find_last_of( '/' ); // scan r -> l for first '/'
292	if ( p == -1 ) {
293	compiler_name = compiler_path;
294	} else {
295	compiler_name = *new string( compiler_path.substr( p + 1 ) );
296	} // if
297
298	if ( prefix( compiler_name, "gcc" ) ) { // allow suffix on gcc name
299	args[nargs] = "-no-integrated-cpp";
300	nargs += 1;
301	args[nargs] = "-Wno-deprecated";
302	nargs += 1;
303	if ( ! std_flag ) { // default c99, if none specified
304	args[nargs] = "-std=c99";
305	nargs += 1;
306	} // if
307	args[nargs] = ( *new string( string("-B") + Bprefix + "/" ) ).c_str();
308	nargs += 1;
309	} else {
310	cerr << argv[0] << " error, compiler " << compiler_name << " not supported." << endl;
311	exit( EXIT_FAILURE );
312	} // if
313
314	for ( int i = 0; i < nlibs; i += 1 ) { // copy non-user libraries after all user libraries
315	args[nargs] = libs[i];
316	nargs += 1;
317	} // for
318
319	args[nargs] = NULL; // terminate with NULL
320
321	#ifdef __DEBUG_H__
322	cerr << "nargs: " << nargs << endl;
323	cerr << "args:" << endl;
324	for ( int i = 0; args[i] != NULL; i += 1 ) {
325	cerr << " \"" << args[i] << "\"" << endl;
326	} // for
327	#endif // __DEBUG_H__
328
329	if ( ! quiet ) {
330	cerr << "CFA " << "Version " << Version << heading << endl;
331
332	if ( help ) {
333	cerr <<
334	"-debug\t\t\t: use cfa runtime with debug checking" << endl <<
335	"-help\t\t\t: print this help message" << endl <<
336	"-quiet\t\t\t: print no messages from the cfa command" << endl <<
337	"-CFA\t\t\t: run the cpp preprocessor and the cfa-cpp translator" << endl <<
338	"-XCFA -cfa-cpp-flag\t: pass next flag as-is to the cfa-cpp translator" << endl <<
339	"...\t\t\t: any other " << compiler_name << " flags" << endl;
340	} // if
341	} // if
342
343	if ( verbose ) {
344	if ( argc == 2 ) exit( EXIT_SUCCESS ); // if only the -v flag is specified, do not invoke gcc
345
346	for ( int i = 0; args[i] != NULL; i += 1 ) {
347	cerr << args[i] << " ";
348	} // for
349	cerr << endl;
350	} // if
351
352	if ( ! nonoptarg ) {
353	cerr << argv[0] << " error, no input files" << endl;
354	exit( EXIT_FAILURE );
355	} // if
356
357	// execute the command and return the result
358
359	execvp( args[0], (char const )args ); // should not return
360	perror( "CFA Translator error: cfa level, execvp" );
361	exit( EXIT_FAILURE );
362	} // main
363
364	// Local Variables: //
365	// tab-width: 4 //
366	// mode: c++ //
367	// compile-command: "make install" //
368	// End: //

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