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source: src/main.cc @ 4d4882a

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

Last change on this file since 4d4882a was 46f6134, checked in by Thierry Delisle <tdelisle@…>, 8 years ago
Implemented owning scoped map for typedef elimination phase
Property mode set to `100644`
File size: 12.5 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 : Richard C. Bilson
10	// Created On : Fri May 15 23:12:02 2015
11	// Last Modified By : Peter A. Buhr
12	// Last Modified On : Sat Aug 20 12:52:22 2016
13	// Update Count : 403
14	//
15
16	#include <iostream>
17	#include <fstream>
18	#include <signal.h> // signal
19	#include <getopt.h> // getopt
20	#include <execinfo.h> // backtrace, backtrace_symbols_fd
21	#include <cxxabi.h> // __cxa_demangle
22
23	using namespace std;
24
25	#include "Parser/lex.h"
26	#include "Parser/parser.h"
27	#include "Parser/TypedefTable.h"
28	#include "GenPoly/Lvalue.h"
29	#include "GenPoly/Specialize.h"
30	#include "GenPoly/Box.h"
31	#include "GenPoly/CopyParams.h"
32	#include "GenPoly/InstantiateGeneric.h"
33	#include "CodeGen/Generate.h"
34	#include "CodeGen/FixNames.h"
35	#include "ControlStruct/Mutate.h"
36	#include "SymTab/Validate.h"
37	#include "ResolvExpr/AlternativePrinter.h"
38	#include "ResolvExpr/Resolver.h"
39	#include "MakeLibCfa.h"
40	#include "InitTweak/GenInit.h"
41	#include "InitTweak/FixInit.h"
42	#include "Common/UnimplementedError.h"
43	#include "../config.h"
44
45	using namespace std;
46
47	#define OPTPRINT(x) if ( errorp ) cerr << x << endl;
48
49
50	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
51	TypedefTable typedefTable;
52	DeclarationNode * parseTree = nullptr; // program parse tree
53
54	extern int yydebug; // set for -g flag (Grammar)
55	bool
56	astp = false,
57	bresolvep = false,
58	bboxp = false,
59	ctorinitp = false,
60	exprp = false,
61	expraltp = false,
62	libcfap = false,
63	nopreludep = false,
64	noprotop = false,
65	parsep = false,
66	resolvep = false, // used in AlternativeFinder
67	symtabp = false,
68	treep = false,
69	validp = false,
70	errorp = false,
71	codegenp = false;
72
73	static void parse_cmdline( int argc, char argv[], const char & filename );
74	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
75	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
76
77	void sigSegvBusHandler( int sig_num ) {
78	enum { Frames = 50 };
79	void * array[Frames];
80	int size = backtrace( array, Frames );
81
82	cerr << "CFA runtime error program cfa-cpp terminated with "
83	<< (sig_num == SIGSEGV ? "segment fault" : "bus error")
84	<< " backtrace:" << endl;
85
86	char ** messages = backtrace_symbols( array, size );
87
88	// skip first stack frame (points here)
89	for ( int i = 2; i < size - 2 && messages != nullptr; i += 1 ) {
90	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
91	for ( char p = messages[i]; p; ++p ) { // find parantheses and +offset
92	if (*p == '(') {
93	mangled_name = p;
94	} else if (*p == '+') {
95	offset_begin = p;
96	} else if (*p == ')') {
97	offset_end = p;
98	break;
99	} // if
100	} // for
101
102	// if line contains symbol, attempt to demangle
103	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
104	*mangled_name++ = '\0';
105	*offset_begin++ = '\0';
106	*offset_end++ = '\0';
107
108	int status;
109	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
110	if ( status == 0 ) { // demangling successful ?
111	cerr << "(" << i - 2 << ") " << messages[i] << " : "
112	<< real_name << "+" << offset_begin << offset_end << endl;
113
114	} else { // otherwise, output mangled name
115	cerr << "(" << i - 2 << ") " << messages[i] << " : "
116	<< mangled_name << "+" << offset_begin << offset_end << endl;
117	} // if
118	free( real_name );
119	} else { // otherwise, print the whole line
120	cerr << "(" << i - 2 << ") " << messages[i] << endl;
121	} // if
122	} // for
123	free( messages );
124	exit( EXIT_FAILURE );
125	} // sigSegvBusHandler
126
127	int main( int argc, char * argv[] ) {
128	FILE * input; // use FILE rather than istream because yyin is FILE
129	ostream *output = & cout;
130	const char *filename = nullptr;
131	list< Declaration * > translationUnit;
132
133	signal( SIGSEGV, sigSegvBusHandler );
134	signal( SIGBUS, sigSegvBusHandler );
135
136	parse_cmdline( argc, argv, filename ); // process command-line arguments
137
138	try {
139	// choose to read the program from a file or stdin
140	if ( optind < argc ) { // any commands after the flags ? => input file name
141	input = fopen( argv[ optind ], "r" );
142	assertf( input, "cannot open %s\n", argv[ optind ] );
143	// if running cfa-cpp directly, might forget to pass -F option (and really shouldn't have to)
144	if ( filename == nullptr ) filename = argv[ optind ];
145	// prelude filename comes in differently
146	if ( libcfap ) filename = "prelude.cf";
147	optind += 1;
148	} else { // no input file name
149	input = stdin;
150	// if running cfa-cpp directly, might forget to pass -F option. Since this takes from stdin, pass
151	// a fake name along
152	if ( filename == nullptr ) filename = "stdin";
153	} // if
154
155	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
156	output = new ofstream( argv[ optind ] );
157	} // if
158
159	// read in the builtins, extras, and the prelude
160	if ( ! nopreludep ) { // include gcc builtins
161	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
162	FILE * builtins = fopen( libcfap \| treep ? "builtins.cf" : CFA_LIBDIR "/builtins.cf", "r" );
163	assertf( builtins, "cannot open builtins.cf\n" );
164	parse( builtins, LinkageSpec::Compiler );
165
166	// read the extra prelude in, if not generating the cfa library
167	FILE * extras = fopen( libcfap \| treep ? "extras.cf" : CFA_LIBDIR "/extras.cf", "r" );
168	assertf( extras, "cannot open extras.cf\n" );
169	parse( extras, LinkageSpec::C );
170
171	if ( ! libcfap ) {
172	// read the prelude in, if not generating the cfa library
173	FILE * prelude = fopen( treep ? "prelude.cf" : CFA_LIBDIR "/prelude.cf", "r" );
174	assertf( prelude, "cannot open prelude.cf\n" );
175	parse( prelude, LinkageSpec::Intrinsic );
176	} // if
177	} // if
178
179	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
180
181	if ( parsep ) {
182	parseTree->printList( cout );
183	delete parseTree;
184	return 0;
185	} // if
186
187	buildList( parseTree, translationUnit );
188	delete parseTree;
189	parseTree = nullptr;
190
191	if ( astp ) {
192	dump( translationUnit );
193	return 0;
194	} // if
195
196	// add the assignment statement after the initialization of a type parameter
197	OPTPRINT( "validate" )
198	SymTab::validate( translationUnit, symtabp );
199	if ( symtabp ) {
200	deleteAll( translationUnit );
201	return 0;
202	} // if
203
204	if ( expraltp ) {
205	ResolvExpr::AlternativePrinter printer( cout );
206	acceptAll( translationUnit, printer );
207	return 0;
208	} // if
209
210	if ( validp ) {
211	dump( translationUnit );
212	return 0;
213	} // if
214
215	OPTPRINT( "mutate" )
216	ControlStruct::mutate( translationUnit );
217	OPTPRINT( "fixNames" )
218	CodeGen::fixNames( translationUnit );
219	OPTPRINT( "tweakInit" )
220	InitTweak::genInit( translationUnit );
221
222	if ( libcfap ) {
223	// generate the bodies of cfa library functions
224	LibCfa::makeLibCfa( translationUnit );
225	} // if
226
227	if ( bresolvep ) {
228	dump( translationUnit );
229	return 0;
230	} // if
231
232	OPTPRINT( "resolve" )
233	ResolvExpr::resolve( translationUnit );
234	if ( exprp ) {
235	dump( translationUnit );
236	return 0;
237	} // if
238
239	// fix ObjectDecl - replaces ConstructorInit nodes
240	OPTPRINT( "fixInit" )
241	InitTweak::fix( translationUnit, filename, libcfap \|\| treep );
242	if ( ctorinitp ) {
243	dump ( translationUnit );
244	return 0;
245	} // if
246
247	OPTPRINT("instantiateGenerics")
248	GenPoly::instantiateGeneric( translationUnit );
249	OPTPRINT( "copyParams" );
250	GenPoly::copyParams( translationUnit );
251	OPTPRINT( "convertSpecializations" )
252	GenPoly::convertSpecializations( translationUnit );
253	OPTPRINT( "convertLvalue" )
254	GenPoly::convertLvalue( translationUnit );
255
256	if ( bboxp ) {
257	dump( translationUnit );
258	return 0;
259	} // if
260	OPTPRINT( "box" )
261	GenPoly::box( translationUnit );
262
263	// print tree right before code generation
264	if ( codegenp ) {
265	dump( translationUnit );
266	return 0;
267	} // if
268
269	CodeGen::generate( translationUnit, *output, ! noprotop );
270
271	if ( output != &cout ) {
272	delete output;
273	} // if
274	} catch ( SemanticError &e ) {
275	if ( errorp ) {
276	cerr << "---AST at error:---" << endl;
277	dump( translationUnit, cerr );
278	cerr << endl << "---End of AST, begin error message:---\n" << endl;
279	} // if
280	e.print( cerr );
281	if ( output != &cout ) {
282	delete output;
283	} // if
284	return 1;
285	} catch ( UnimplementedError &e ) {
286	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
287	if ( output != &cout ) {
288	delete output;
289	} // if
290	return 1;
291	} catch ( CompilerError &e ) {
292	cerr << "Compiler Error: " << e.get_what() << endl;
293	cerr << "(please report bugs to " << endl;
294	if ( output != &cout ) {
295	delete output;
296	} // if
297	return 1;
298	} // try
299
300	deleteAll( translationUnit );
301	return 0;
302	} // main
303
304	void parse_cmdline( int argc, char * argv[], const char *& filename ) {
305	enum { Ast, Bbox, Bresolver, CtorInitFix, Expr, ExprAlt, Grammar, LibCFA, Nopreamble, Parse, Prototypes, Resolver, Symbol, Tree, Validate, };
306
307	static struct option long_opts[] = {
308	{ "ast", no_argument, 0, Ast },
309	{ "before-box", no_argument, 0, Bbox },
310	{ "before-resolver", no_argument, 0, Bresolver },
311	{ "ctorinitfix", no_argument, 0, CtorInitFix },
312	{ "expr", no_argument, 0, Expr },
313	{ "expralt", no_argument, 0, ExprAlt },
314	{ "grammar", no_argument, 0, Grammar },
315	{ "libcfa", no_argument, 0, LibCFA },
316	{ "no-preamble", no_argument, 0, Nopreamble },
317	{ "parse", no_argument, 0, Parse },
318	{ "no-prototypes", no_argument, 0, Prototypes },
319	{ "resolver", no_argument, 0, Resolver },
320	{ "symbol", no_argument, 0, Symbol },
321	{ "tree", no_argument, 0, Tree },
322	{ "validate", no_argument, 0, Validate },
323	{ 0, 0, 0, 0 }
324	}; // long_opts
325	int long_index;
326
327	opterr = 0; // (global) prevent getopt from printing error messages
328
329	int c;
330	while ( (c = getopt_long( argc, argv, "abBcefglnpqrstvyzD:F:", long_opts, &long_index )) != -1 ) {
331	switch ( c ) {
332	case Ast:
333	case 'a': // dump AST
334	astp = true;
335	break;
336	case Bresolver:
337	case 'b': // print before resolver steps
338	bresolvep = true;
339	break;
340	case 'B': // print before resolver steps
341	bboxp = true;
342	break;
343	case CtorInitFix:
344	case 'c':
345	ctorinitp = true;
346	break;
347	case Expr:
348	case 'e': // dump AST after expression analysis
349	exprp = true;
350	break;
351	case ExprAlt:
352	case 'f': // print alternatives for expressions
353	expraltp = true;
354	break;
355	case Grammar:
356	case 'g': // bison debugging info (grammar rules)
357	yydebug = true;
358	break;
359	case LibCFA:
360	case 'l': // generate libcfa.c
361	libcfap = true;
362	break;
363	case Nopreamble:
364	case 'n': // do not read preamble
365	nopreludep = true;
366	break;
367	case Prototypes:
368	case 'p': // generate prototypes for preamble functions
369	noprotop = true;
370	break;
371	case Parse:
372	case 'q': // dump parse tree
373	parsep = true;
374	break;
375	case Resolver:
376	case 'r': // print resolver steps
377	resolvep = true;
378	break;
379	case Symbol:
380	case 's': // print symbol table events
381	symtabp = true;
382	break;
383	case Tree:
384	case 't': // build in tree
385	treep = true;
386	break;
387	case 'v': // dump AST after decl validation pass
388	validp = true;
389	break;
390	case 'y':
391	errorp = true;
392	break;
393	case 'z':
394	codegenp = true;
395	break;
396	case 'D': // ignore -Dxxx
397	break;
398	case 'F': // source file-name without suffix
399	filename = optarg;
400	break;
401	case '?':
402	assertf( false, "Unknown option: '%c'\n", (char)optopt );
403	default:
404	abort();
405	} // switch
406	} // while
407	} // parse_cmdline
408
409	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
410	extern int yyparse( void );
411	extern FILE * yyin;
412	extern int yylineno;
413
414	::linkage = linkage; // set globals
415	yyin = input;
416	yylineno = 1;
417	typedefTable.enterScope();
418	int parseStatus = yyparse();
419
420	fclose( input );
421	if ( shouldExit \|\| parseStatus != 0 ) {
422	exit( parseStatus );
423	} // if
424	} // parse
425
426	static bool notPrelude( Declaration * decl ) {
427	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
428	} // notPrelude
429
430	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
431	list< Declaration * > decls;
432
433	if ( noprotop ) {
434	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
435	} else {
436	decls = translationUnit;
437	} // if
438
439	printAll( decls, out );
440	deleteAll( translationUnit );
441	} // dump
442
443	// Local Variables: //
444	// tab-width: 4 //
445	// mode: c++ //
446	// compile-command: "make install" //
447	// End: //

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