Context Navigation

source: src/main.cc @ 4c51aca

ADTarm-ehast-experimentalenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprpthread-emulationqualifiedEnum

Last change on this file since 4c51aca was dee1f89, checked in by Thierry Delisle <tdelisle@…>, 5 years ago
Libcfa make can now stop cfa-cpp when starting so a gdb session will be attached to it. Use make ... gdbwaittarget=FILENAME where the filename is the same as the one printed when building with the silent rules. cfa-cpp will print the gdb command to attach to it. You may need to change linux permissions for gdb attach, just Google it.
Property mode set to `100644`
File size: 24.7 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	// main.cc --
8	//
9	// Author : Peter Buhr and Rob Schluntz
10	// Created On : Fri May 15 23:12:02 2015
11	// Last Modified By : Peter A. Buhr
12	// Last Modified On : Wed Jun 5 20:35:13 2019
13	// Update Count : 601
14	//
15
16	#include <cxxabi.h> // for __cxa_demangle
17	#include <execinfo.h> // for backtrace, backtrace_symbols
18	#include <getopt.h> // for no_argument, optind, geto...
19	#include <cassert> // for assertf
20	#include <cstdio> // for fopen, FILE, fclose, stdin
21	#include <cstdlib> // for exit, free, abort, EXIT_F...
22	#include <csignal> // for signal, SIGABRT, SIGSEGV
23	#include <cstring> // for index
24	#include <fstream> // for ofstream
25	#include <iostream> // for operator<<, basic_ostream
26	#include <iomanip>
27	#include <iterator> // for back_inserter
28	#include <list> // for list
29	#include <string> // for char_traits, operator<<
30
31	#include "CompilationState.h"
32	#include "../config.h" // for CFA_LIBDIR
33	#include "CodeGen/FixMain.h" // for FixMain
34	#include "CodeGen/FixNames.h" // for fixNames
35	#include "CodeGen/Generate.h" // for generate
36	#include "CodeTools/DeclStats.h" // for printDeclStats
37	#include "CodeTools/ResolvProtoDump.h" // for dumpAsResolvProto
38	#include "CodeTools/TrackLoc.h" // for fillLocations
39	#include "Common/CompilerError.h" // for CompilerError
40	#include "Common/Stats.h"
41	#include "Common/PassVisitor.h"
42	#include "Common/SemanticError.h" // for SemanticError
43	#include "Common/UnimplementedError.h" // for UnimplementedError
44	#include "Common/utility.h" // for deleteAll, filter, printAll
45	#include "Concurrency/Waitfor.h" // for generateWaitfor
46	#include "ControlStruct/ExceptTranslate.h" // for translateEHM
47	#include "ControlStruct/Mutate.h" // for mutate
48	#include "GenPoly/Box.h" // for box
49	#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
50	#include "GenPoly/Lvalue.h" // for convertLvalue
51	#include "GenPoly/Specialize.h" // for convertSpecializations
52	#include "InitTweak/FixInit.h" // for fix
53	#include "InitTweak/GenInit.h" // for genInit
54	#include "MakeLibCfa.h" // for makeLibCfa
55	#include "Parser/LinkageSpec.h" // for Spec, Cforall, Intrinsic
56	#include "Parser/ParseNode.h" // for DeclarationNode, buildList
57	#include "Parser/TypedefTable.h" // for TypedefTable
58	#include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
59	#include "ResolvExpr/Resolver.h" // for resolve
60	#include "SymTab/Validate.h" // for validate
61	#include "SynTree/TopLvalue.h" // for assertTopLvalue, clearInn...
62	#include "SynTree/Declaration.h" // for Declaration
63	#include "SynTree/Visitor.h" // for acceptAll
64	#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
65	#include "Virtual/ExpandCasts.h" // for expandCasts
66
67
68	using namespace std;
69
70	static void NewPass( const char * const name ) {
71	Stats::Heap::newPass( name );
72	using namespace Stats::Counters;
73	{
74	static auto group = build<CounterGroup>( "Pass Visitor" );
75	auto pass = build<CounterGroup>( name, group );
76	pass_visitor_stats.depth = 0;
77	pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
78	pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
79	}
80	{
81	static auto group = build<CounterGroup>( "Syntax Node" );
82	auto pass = build<CounterGroup>( name, group );
83	BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
84	}
85	}
86
87	#define PASS( name, pass ) \
88	if ( errorp ) { cerr << name << endl; } \
89	NewPass(name); \
90	Stats::Time::StartBlock(name); \
91	pass; \
92	Stats::Time::StopBlock();
93
94	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
95	TypedefTable typedefTable;
96	DeclarationNode * parseTree = nullptr; // program parse tree
97
98	static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
99
100	static std::string PreludeDirector = "";
101
102	static void parse_cmdline( int argc, char argv[], const char & filename );
103	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
104	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
105
106	static void backtrace( int start ) { // skip first N stack frames
107	enum { Frames = 50 };
108	void * array[Frames];
109	int size = ::backtrace( array, Frames );
110	char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
111
112	*index( messages[0], '(' ) = '\0'; // find executable name
113	cerr << "Stack back trace for: " << messages[0] << endl;
114
115	// skip last 2 stack frames after main
116	for ( int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
117	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
118	for ( char p = messages[i]; p; ++p ) { // find parantheses and +offset
119	if ( *p == '(' ) {
120	mangled_name = p;
121	} else if ( *p == '+' ) {
122	offset_begin = p;
123	} else if ( *p == ')' ) {
124	offset_end = p;
125	break;
126	} // if
127	} // for
128
129	// if line contains symbol, attempt to demangle
130	int frameNo = i - start;
131	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
132	*mangled_name++ = '\0'; // delimit strings
133	*offset_begin++ = '\0';
134	*offset_end++ = '\0';
135
136	int status;
137	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
138	// bug in __cxa_demangle for single-character lower-case non-mangled names
139	if ( status == 0 ) { // demangling successful ?
140	cerr << "(" << frameNo << ") " << messages[i] << " : "
141	<< real_name << "+" << offset_begin << offset_end << endl;
142	} else { // otherwise, output mangled name
143	cerr << "(" << frameNo << ") " << messages[i] << " : "
144	<< mangled_name << "(/unknown/)+" << offset_begin << offset_end << endl;
145	} // if
146
147	free( real_name );
148	} else { // otherwise, print the whole line
149	cerr << "(" << frameNo << ") " << messages[i] << endl;
150	} // if
151	} // for
152
153	free( messages );
154	} // backtrace
155
156	static void sigSegvBusHandler( int sig_num ) {
157	cerr << "CFA runtime error program cfa-cpp terminated with "
158	<< (sig_num == SIGSEGV ? "segment fault" : "bus error")
159	<< "." << endl;
160	backtrace( 2 ); // skip first 2 stack frames
161	//_exit( EXIT_FAILURE );
162	abort(); // cause core dump for debugging
163	} // sigSegvBusHandler
164
165	static void sigAbortHandler( __attribute__((unused)) int sig_num ) {
166	backtrace( 6 ); // skip first 6 stack frames
167	signal( SIGABRT, SIG_DFL); // reset default signal handler
168	raise( SIGABRT ); // reraise SIGABRT
169	} // sigAbortHandler
170
171	int main( int argc, char * argv[] ) {
172	FILE * input; // use FILE rather than istream because yyin is FILE
173	ostream * output = & cout;
174	const char * filename = nullptr;
175	list< Declaration * > translationUnit;
176
177	signal( SIGSEGV, sigSegvBusHandler );
178	signal( SIGBUS, sigSegvBusHandler );
179	signal( SIGABRT, sigAbortHandler );
180
181	// std::cout << "main" << std::endl;
182	// for ( int i = 0; i < argc; i += 1 ) {
183	// std::cout << '\t' << argv[i] << std::endl;
184	// } // for
185
186	parse_cmdline( argc, argv, filename ); // process command-line arguments
187	CodeGen::FixMain::setReplaceMain( !nomainp );
188
189	if(waiting_for_gdb) {
190	std::cerr << "Waiting for gdb" << std::endl;
191	std::cerr << "run :" << std::endl;
192	std::cerr << " gdb attach " << getpid() << std::endl;
193	raise(SIGSTOP);
194	}
195
196	try {
197	// choose to read the program from a file or stdin
198	if ( optind < argc ) { // any commands after the flags ? => input file name
199	input = fopen( argv[ optind ], "r" );
200	assertf( input, "cannot open %s\n", argv[ optind ] );
201	// if running cfa-cpp directly, might forget to pass -F option (and really shouldn't have to)
202	if ( filename == nullptr ) filename = argv[ optind ];
203	// prelude filename comes in differently
204	if ( libcfap ) filename = "prelude.cfa";
205	optind += 1;
206	} else { // no input file name
207	input = stdin;
208	std::cerr << "Input from stdin" << std::endl;
209	// if running cfa-cpp directly, might forget to pass -F option. Since this takes from stdin, pass
210	// a fake name along
211	if ( filename == nullptr ) filename = "stdin";
212	} // if
213
214	Stats::Time::StartGlobal();
215	NewPass("Parse");
216	Stats::Time::StartBlock("Parse");
217
218	// read in the builtins, extras, and the prelude
219	if ( ! nopreludep ) { // include gcc builtins
220	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
221
222	assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
223
224	// Read to gcc builtins, if not generating the cfa library
225	FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
226	assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
227	parse( gcc_builtins, LinkageSpec::Compiler );
228
229	// read the extra prelude in, if not generating the cfa library
230	FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
231	assertf( extras, "cannot open extras.cf\n" );
232	parse( extras, LinkageSpec::BuiltinC );
233
234	if ( ! libcfap ) {
235	// read the prelude in, if not generating the cfa library
236	FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
237	assertf( prelude, "cannot open prelude.cfa\n" );
238	parse( prelude, LinkageSpec::Intrinsic );
239
240	// Read to cfa builtins, if not generating the cfa library
241	FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
242	assertf( builtins, "cannot open builtins.cf\n" );
243	parse( builtins, LinkageSpec::BuiltinCFA );
244	} // if
245	} // if
246
247	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
248
249	if ( parsep ) {
250	parseTree->printList( cout );
251	delete parseTree;
252	return EXIT_SUCCESS;
253	} // if
254
255	buildList( parseTree, translationUnit );
256	delete parseTree;
257	parseTree = nullptr;
258
259	if ( astp ) {
260	dump( translationUnit );
261	return EXIT_SUCCESS;
262	} // if
263
264	// Temporary: fill locations after parsing so that every node has a location, for early error messages.
265	// Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
266	// works okay for now.
267	CodeTools::fillLocations( translationUnit );
268	Stats::Time::StopBlock();
269
270	//std::cerr << "Post-Parse Check" << std::endl;
271	clearInnerLvalue( translationUnit );
272	assertTopLvalue( translationUnit );
273
274	// add the assignment statement after the initialization of a type parameter
275	PASS( "Validate", SymTab::validate( translationUnit, symtabp ) );
276	if ( symtabp ) {
277	deleteAll( translationUnit );
278	return EXIT_SUCCESS;
279	} // if
280
281	if ( expraltp ) {
282	PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
283	acceptAll( translationUnit, printer );
284	return EXIT_SUCCESS;
285	} // if
286
287	if ( validp ) {
288	dump( translationUnit );
289	return EXIT_SUCCESS;
290	} // if
291
292	assertTopLvalue( translationUnit );
293	PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
294	assertTopLvalue( translationUnit );
295	PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
296	assertTopLvalue( translationUnit );
297	PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
298	assertTopLvalue( translationUnit );
299	PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
300	assertTopLvalue( translationUnit );
301	if ( libcfap ) {
302	// generate the bodies of cfa library functions
303	LibCfa::makeLibCfa( translationUnit );
304	} // if
305
306	if ( declstatsp ) {
307	CodeTools::printDeclStats( translationUnit );
308	deleteAll( translationUnit );
309	return EXIT_SUCCESS;
310	} // if
311
312	if ( bresolvep ) {
313	dump( translationUnit );
314	return EXIT_SUCCESS;
315	} // if
316
317	CodeTools::fillLocations( translationUnit );
318
319	if ( resolvprotop ) {
320	CodeTools::dumpAsResolvProto( translationUnit );
321	return EXIT_SUCCESS;
322	} // if
323
324	assertTopLvalue( translationUnit );
325
326	PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
327	if ( exprp ) {
328	dump( translationUnit );
329	return EXIT_SUCCESS;
330	} // if
331
332	clearInnerLvalue( translationUnit );
333	assertTopLvalue( translationUnit );
334
335	// fix ObjectDecl - replaces ConstructorInit nodes
336	PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
337	clearInnerLvalue( translationUnit );
338	assertTopLvalue( translationUnit );
339	if ( ctorinitp ) {
340	dump ( translationUnit );
341	return EXIT_SUCCESS;
342	} // if
343
344	PASS( "Expand Unique Expr", Tuples::expandUniqueExpr( translationUnit ) ); // xxx - is this the right place for this? want to expand ASAP so tha, sequent passes don't need to worry about double-visiting a unique expr - needs to go after InitTweak::fix so that copy constructed return declarations are reused
345	assertTopLvalue( translationUnit );
346
347	PASS( "Translate EHM" , ControlStruct::translateEHM( translationUnit ) );
348	assertTopLvalue( translationUnit );
349
350	PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
351	clearInnerLvalue( translationUnit );
352	assertTopLvalue( translationUnit );
353
354	PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
355	clearInnerLvalue( translationUnit );
356	assertTopLvalue( translationUnit );
357
358	PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
359	assertTopLvalue( translationUnit );
360
361	if ( tuplep ) {
362	dump( translationUnit );
363	return EXIT_SUCCESS;
364	} // if
365
366	PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
367	assertTopLvalue( translationUnit );
368
369	PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
370	if ( genericsp ) {
371	dump( translationUnit );
372	return EXIT_SUCCESS;
373	} // if
374	clearInnerLvalue( translationUnit );
375	assertTopLvalue( translationUnit );
376	PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
377	clearInnerLvalue( translationUnit );
378	assertTopLvalue( translationUnit );
379
380	if ( bboxp ) {
381	dump( translationUnit );
382	return EXIT_SUCCESS;
383	} // if
384	PASS( "Box", GenPoly::box( translationUnit ) );
385	clearInnerLvalue( translationUnit );
386	assertTopLvalue( translationUnit );
387
388	if ( bcodegenp ) {
389	dump( translationUnit );
390	return EXIT_SUCCESS;
391	} // if
392
393	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
394	output = new ofstream( argv[ optind ] );
395	} // if
396
397	CodeTools::fillLocations( translationUnit );
398	assertTopLvalue( translationUnit );
399	PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
400
401	CodeGen::FixMain::fix( *output, (PreludeDirector + "/bootloader.c").c_str() );
402	if ( output != &cout ) {
403	delete output;
404	} // if
405	} catch ( SemanticErrorException &e ) {
406	if ( errorp ) {
407	cerr << "---AST at error:---" << endl;
408	dump( translationUnit, cerr );
409	cerr << endl << "---End of AST, begin error message:---\n" << endl;
410	} // if
411	e.print();
412	if ( output != &cout ) {
413	delete output;
414	} // if
415	return EXIT_FAILURE;
416	} catch ( UnimplementedError &e ) {
417	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
418	if ( output != &cout ) {
419	delete output;
420	} // if
421	return EXIT_FAILURE;
422	} catch ( CompilerError &e ) {
423	cerr << "Compiler Error: " << e.get_what() << endl;
424	cerr << "(please report bugs to [REDACTED])" << endl;
425	if ( output != &cout ) {
426	delete output;
427	} // if
428	return EXIT_FAILURE;
429	} catch ( ... ) {
430	std::exception_ptr eptr = std::current_exception();
431	try {
432	if (eptr) {
433	std::rethrow_exception(eptr);
434	} else {
435	std::cerr << "Exception Uncaught and Unknown" << std::endl;
436	} // if
437	} catch(const std::exception& e) {
438	std::cerr << "Uncaught Exception \"" << e.what() << "\"\n";
439	} // try
440	return EXIT_FAILURE;
441	} // try
442
443	deleteAll( translationUnit );
444	Stats::print();
445	return EXIT_SUCCESS;
446	} // main
447
448
449	static const char optstring[] = ":hlLmNnpP:S:tgwW:D:F:";
450
451	enum { PreludeDir = 128 };
452	static struct option long_opts[] = {
453	{ "help", no_argument, nullptr, 'h' },
454	{ "libcfa", no_argument, nullptr, 'l' },
455	{ "linemarks", no_argument, nullptr, 'L' },
456	{ "no-main", no_argument, 0, 'm' },
457	{ "no-linemarks", no_argument, nullptr, 'N' },
458	{ "no-prelude", no_argument, nullptr, 'n' },
459	{ "prototypes", no_argument, nullptr, 'p' },
460	{ "print", required_argument, nullptr, 'P' },
461	{ "prelude-dir", required_argument, nullptr, PreludeDir },
462	{ "statistics", required_argument, nullptr, 'S' },
463	{ "tree", no_argument, nullptr, 't' },
464	{ "gdb", no_argument, nullptr, 'g' },
465	{ "", no_argument, nullptr, 0 }, // -w
466	{ "", no_argument, nullptr, 0 }, // -W
467	{ "", no_argument, nullptr, 0 }, // -D
468	{ "", no_argument, nullptr, 0 }, // -F
469	{ nullptr, 0, nullptr, 0 }
470	}; // long_opts
471
472	static const char * description[] = {
473	"print help message", // -h
474	"generate libcfa.c", // -l
475	"generate line marks", // -L
476	"do not replace main", // -m
477	"do not generate line marks", // -N
478	"do not read prelude", // -n
479	"generate prototypes for prelude functions", // -p
480	"print", // -P
481	"<directory> prelude directory for debug/nodebug", // no flag
482	"<option-list> enable profiling information:\n counters,heap,time,all,none", // -S
483	"building cfa standard lib", // -t
484	"wait for gdb to attach", // -g
485	"", // -w
486	"", // -W
487	"", // -D
488	"", // -F
489	}; // description
490
491	static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
492
493	static struct Printopts {
494	const char * name;
495	int & flag;
496	int val;
497	const char * descript;
498	} printopts[] = {
499	{ "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
500	{ "asterr", errorp, true, "print AST on error" },
501	{ "declstats", declstatsp, true, "code property statistics" },
502	{ "parse", yydebug, true, "yacc (parsing) debug information" },
503	{ "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
504	{ "rproto", resolvprotop, true, "resolver-proto instance" },
505	{ "rsteps", resolvep, true, "print resolver steps" },
506	{ "tree", parsep, true, "print parse tree" },
507	// code dumps
508	{ "ast", astp, true, "print AST after parsing" },
509	{ "symevt", symtabp, true, "print AST after symbol table events" },
510	{ "altexpr", expraltp, true, "print alternatives for expressions" },
511	{ "astdecl", validp, true, "print AST after declaration validation pass" },
512	{ "resolver", bresolvep, true, "print AST before resolver step" },
513	{ "astexpr", exprp, true, "print AST after expression analysis" },
514	{ "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
515	{ "tuple", tuplep, true, "print AST after tuple expansion" },
516	{ "astgen", genericsp, true, "print AST after instantiate generics" },
517	{ "box", bboxp, true, "print AST before box step" },
518	{ "codegen", bcodegenp, true, "print AST before code generation" },
519	};
520	enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
521
522	static void usage( char *argv[] ) {
523	cout << "Usage: " << argv[0] << " options are:" << endl;
524	int i = 0, j = 1; // j skips starting colon
525	for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
526	if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
527	if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
528	cout << " -" << optstring[j] << ",";
529	} else { // no flag
530	j -= 1; // compensate
531	cout << " ";
532	} // if
533	cout << " --" << left << setw(12) << long_opts[i].name << " ";
534	if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
535	cout << "one of: " << endl;
536	for ( int i = 0; i < printoptsSize; i += 1 ) {
537	cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
538	} // for
539	} else {
540	cout << description[i] << endl;
541	} // if
542	} // if
543	if ( optstring[j + 1] == ':' ) j += 1;
544	} // for
545	if ( long_opts[i].name != 0 \|\| optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
546	exit( EXIT_FAILURE );
547	} // usage
548
549	static void parse_cmdline( int argc, char * argv[], const char *& filename ) {
550	opterr = 0; // (global) prevent getopt from printing error messages
551
552	bool Wsuppress = false, Werror = false;
553	int c;
554	while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
555	switch ( c ) {
556	case 'h': // help message
557	usage( argv ); // no return
558	break;
559	case 'l': // generate libcfa.c
560	libcfap = true;
561	break;
562	case 'L': // generate line marks
563	linemarks = true;
564	break;
565	case 'm': // do not replace main
566	nomainp = true;
567	break;
568	case 'N': // do not generate line marks
569	linemarks = false;
570	break;
571	case 'n': // do not read prelude
572	nopreludep = true;
573	break;
574	case 'p': // generate prototypes for prelude functions
575	genproto = true;
576	break;
577	case 'P': // print options
578	for ( int i = 0;; i += 1 ) {
579	if ( i == printoptsSize ) {
580	cout << "Unknown --print option " << optarg << endl;
581	goto Default;
582	} // if
583	if ( strcmp( optarg, printopts[i].name ) == 0 ) {
584	printopts[i].flag = printopts[i].val;
585	break;
586	} // if
587	} // for
588	break;
589	case PreludeDir: // prelude directory for debug/nodebug, hidden
590	PreludeDirector = optarg;
591	break;
592	case 'S': // enable profiling information, argument comma separated list of names
593	Stats::parse_params( optarg );
594	break;
595	case 't': // building cfa stdlib
596	treep = true;
597	break;
598	case 'g': // wait for gdb
599	waiting_for_gdb = true;
600	break;
601	case 'w': // suppress all warnings, hidden
602	Wsuppress = true;
603	break;
604	case 'W': // coordinate gcc -W with CFA, hidden
605	if ( strcmp( optarg, "all" ) == 0 ) {
606	SemanticWarning_EnableAll();
607	} else if ( strcmp( optarg, "error" ) == 0 ) {
608	Werror = true;
609	} else {
610	char * warning = optarg;
611	Severity s;
612	if ( strncmp( optarg, "no-", 3 ) == 0 ) {
613	warning += 3;
614	s = Severity::Suppress;
615	} else {
616	s = Severity::Warn;
617	} // if
618	SemanticWarning_Set( warning, s );
619	} // if
620	break;
621	case 'D': // ignore -Dxxx, forwarded by cpp, hidden
622	break;
623	case 'F': // source file-name without suffix, hidden
624	filename = optarg;
625	break;
626	case '?': // unknown option
627	if ( optopt ) { // short option ?
628	cout << "Unknown option -" << (char)optopt << endl;
629	} else {
630	cout << "Unknown option " << argv[optind - 1] << endl;
631	} // if
632	goto Default;
633	case ':': // missing option
634	if ( optopt ) { // short option ?
635	cout << "Missing option for -" << (char)optopt << endl;
636	} else {
637	cout << "Missing option for " << argv[optind - 1] << endl;
638	} // if
639	goto Default;
640	Default:
641	default:
642	usage( argv ); // no return
643	} // switch
644	} // while
645
646	if ( Werror ) {
647	SemanticWarning_WarningAsError();
648	} // if
649	if ( Wsuppress ) {
650	SemanticWarning_SuppressAll();
651	} // if
652	// for ( const auto w : WarningFormats ) {
653	// cout << w.name << ' ' << (int)w.severity << endl;
654	// } // for
655	} // parse_cmdline
656
657	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
658	extern int yyparse( void );
659	extern FILE * yyin;
660	extern int yylineno;
661
662	::linkage = linkage; // set globals
663	yyin = input;
664	yylineno = 1;
665	int parseStatus = yyparse();
666
667	fclose( input );
668	if ( shouldExit \|\| parseStatus != 0 ) {
669	exit( parseStatus );
670	} // if
671	} // parse
672
673	static bool notPrelude( Declaration * decl ) {
674	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
675	} // notPrelude
676
677	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
678	list< Declaration * > decls;
679
680	if ( genproto ) {
681	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
682	} else {
683	decls = translationUnit;
684	} // if
685
686	// depending on commandline options, either generate code or dump the AST
687	if ( codegenp ) {
688	CodeGen::generate( decls, out, ! genproto, prettycodegenp );
689	} else {
690	printAll( decls, out );
691	} // if
692	deleteAll( translationUnit );
693	} // dump
694
695	// Local Variables: //
696	// tab-width: 4 //
697	// mode: c++ //
698	// compile-command: "make install" //
699	// End: //

Note: See TracBrowser for help on using the repository browser.

Download in other formats: