source: src/main.cc@ ea89e36

ADT ast-experimental enum pthread-emulation qualifiedEnum
Last change on this file since ea89e36 was b56ad5e, checked in by Fangren Yu <f37yu@…>, 4 years ago

Merge branch 'master' of plg.uwaterloo.ca:software/cfa/cfa-cc

  • Property mode set to 100644
File size: 31.3 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 : Andrew Beach
12// Last Modified On : Wed Jan 26 14:09:00 2022
13// Update Count : 670
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
31using namespace std;
32
33#include "AST/Convert.hpp"
34#include "CompilationState.h"
35#include "../config.h" // for CFA_LIBDIR
36#include "CodeGen/FixMain.h" // for FixMain
37#include "CodeGen/FixNames.h" // for fixNames
38#include "CodeGen/Generate.h" // for generate
39#include "CodeGen/LinkOnce.h" // for translateLinkOnce
40#include "CodeTools/DeclStats.h" // for printDeclStats
41#include "CodeTools/ResolvProtoDump.h" // for dumpAsResolvProto
42#include "CodeTools/TrackLoc.h" // for fillLocations
43#include "Common/CodeLocationTools.hpp" // for forceFillCodeLocations
44#include "Common/CompilerError.h" // for CompilerError
45#include "Common/DeclStats.hpp" // for printDeclStats
46#include "Common/ResolvProtoDump.hpp" // for dumpAsResolverProto
47#include "Common/Stats.h"
48#include "Common/PassVisitor.h"
49#include "Common/SemanticError.h" // for SemanticError
50#include "Common/UnimplementedError.h" // for UnimplementedError
51#include "Common/utility.h" // for deleteAll, filter, printAll
52#include "Concurrency/Keywords.h" // for implementMutex, implement...
53#include "Concurrency/Waitfor.h" // for generateWaitfor
54#include "ControlStruct/ExceptDecl.h" // for translateExcept
55#include "ControlStruct/ExceptTranslate.h" // for translateEHM
56#include "ControlStruct/FixLabels.hpp" // for fixLabels
57#include "ControlStruct/HoistControlDecls.hpp" // hoistControlDecls
58#include "ControlStruct/Mutate.h" // for mutate
59#include "GenPoly/Box.h" // for box
60#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
61#include "GenPoly/Lvalue.h" // for convertLvalue
62#include "GenPoly/Specialize.h" // for convertSpecializations
63#include "InitTweak/FixInit.h" // for fix
64#include "InitTweak/GenInit.h" // for genInit
65#include "MakeLibCfa.h" // for makeLibCfa
66#include "Parser/ParseNode.h" // for DeclarationNode, buildList
67#include "Parser/TypedefTable.h" // for TypedefTable
68#include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
69#include "ResolvExpr/CandidatePrinter.hpp" // for printCandidates
70#include "ResolvExpr/Resolver.h" // for resolve
71#include "SymTab/Validate.h" // for validate
72#include "SynTree/LinkageSpec.h" // for Spec, Cforall, Intrinsic
73#include "SynTree/Declaration.h" // for Declaration
74#include "SynTree/Visitor.h" // for acceptAll
75#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
76#include "Validate/Autogen.hpp" // for autogenerateRoutines
77#include "Validate/FindSpecialDecls.h" // for findGlobalDecls
78#include "Validate/CompoundLiteral.hpp" // for handleCompoundLiterals
79#include "Validate/InitializerLength.hpp" // for setLengthFromInitializer
80#include "Validate/LabelAddressFixer.hpp" // for fixLabelAddresses
81#include "Virtual/ExpandCasts.h" // for expandCasts
82
83static void NewPass( const char * const name ) {
84 Stats::Heap::newPass( name );
85 using namespace Stats::Counters;
86 {
87 static auto group = build<CounterGroup>( "Pass Visitor" );
88 auto pass = build<CounterGroup>( name, group );
89 pass_visitor_stats.depth = 0;
90 pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
91 pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
92 }
93 {
94 static auto group = build<CounterGroup>( "Syntax Node" );
95 auto pass = build<CounterGroup>( name, group );
96 BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
97 }
98}
99
100#define PASS( name, pass ) \
101 if ( errorp ) { cerr << name << endl; } \
102 NewPass(name); \
103 Stats::Time::StartBlock(name); \
104 pass; \
105 Stats::Time::StopBlock();
106
107LinkageSpec::Spec linkage = LinkageSpec::Cforall;
108TypedefTable typedefTable;
109DeclarationNode * parseTree = nullptr; // program parse tree
110
111static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
112
113static string PreludeDirector = "";
114
115static void parse_cmdline( int argc, char * argv[] );
116static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
117static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
118static void dump( ast::TranslationUnit && transUnit, ostream & out = cout );
119
120static void backtrace( int start ) { // skip first N stack frames
121 enum { Frames = 50, }; // maximum number of stack frames
122 void * array[Frames];
123 size_t size = ::backtrace( array, Frames );
124 char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
125
126 *index( messages[0], '(' ) = '\0'; // find executable name
127 cerr << "Stack back trace for: " << messages[0] << endl;
128
129 // skip last 2 stack frames after main
130 for ( unsigned int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
131 char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
132
133 for ( char * p = messages[i]; *p; p += 1 ) { // find parantheses and +offset
134 if ( *p == '(' ) {
135 mangled_name = p;
136 } else if ( *p == '+' ) {
137 offset_begin = p;
138 } else if ( *p == ')' ) {
139 offset_end = p;
140 break;
141 } // if
142 } // for
143
144 // if line contains symbol, attempt to demangle
145 int frameNo = i - start;
146 if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
147 *mangled_name++ = '\0'; // delimit strings
148 *offset_begin++ = '\0';
149 *offset_end++ = '\0';
150
151 int status;
152 char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
153 // bug in __cxa_demangle for single-character lower-case non-mangled names
154 if ( status == 0 ) { // demangling successful ?
155 cerr << "(" << frameNo << ") " << messages[i] << " : "
156 << real_name << "+" << offset_begin << offset_end << endl;
157 } else { // otherwise, output mangled name
158 cerr << "(" << frameNo << ") " << messages[i] << " : "
159 << mangled_name << "(/*unknown*/)+" << offset_begin << offset_end << endl;
160 } // if
161
162 free( real_name );
163 } else { // otherwise, print the whole line
164 cerr << "(" << frameNo << ") " << messages[i] << endl;
165 } // if
166 } // for
167
168 free( messages );
169} // backtrace
170
171#define SIGPARMS int sig __attribute__(( unused )), siginfo_t * sfp __attribute__(( unused )), ucontext_t * cxt __attribute__(( unused ))
172
173static void _Signal(struct sigaction & act, int sig, int flags ) {
174 act.sa_flags = flags;
175
176 if ( sigaction( sig, &act, nullptr ) == -1 ) {
177 cerr << "*cfa-cpp compilation error* problem installing signal handler, error(" << errno << ") " << strerror( errno ) << endl;
178 _exit( EXIT_FAILURE );
179 } // if
180}
181
182static void Signal( int sig, void (* handler)(SIGPARMS), int flags ) {
183 struct sigaction act;
184 act.sa_sigaction = (void (*)(int, siginfo_t *, void *))handler;
185 _Signal(act, sig, flags);
186} // Signal
187
188static void Signal( int sig, void (* handler)(int), int flags ) {
189 struct sigaction act;
190 act.sa_handler = handler;
191 _Signal(act, sig, flags);
192} // Signal
193
194static void sigSegvBusHandler( SIGPARMS ) {
195 if ( sfp->si_addr == nullptr ) {
196 cerr << "Null pointer (nullptr) dereference." << endl;
197 } else {
198 cerr << (sig == SIGSEGV ? "Segment fault" : "Bus error") << " at memory location " << sfp->si_addr << "." << endl
199 << "Possible cause is reading outside the address space or writing to a protected area within the address space with an invalid pointer or subscript." << endl;
200 } // if
201 backtrace( 2 ); // skip first 2 stack frames
202 abort(); // cause core dump for debugging
203} // sigSegvBusHandler
204
205static void sigFpeHandler( SIGPARMS ) {
206 const char * msg;
207
208 switch ( sfp->si_code ) {
209 case FPE_INTDIV: case FPE_FLTDIV: msg = "divide by zero"; break;
210 case FPE_FLTOVF: msg = "overflow"; break;
211 case FPE_FLTUND: msg = "underflow"; break;
212 case FPE_FLTRES: msg = "inexact result"; break;
213 case FPE_FLTINV: msg = "invalid operation"; break;
214 default: msg = "unknown";
215 } // choose
216 cerr << "Computation error " << msg << " at location " << sfp->si_addr << endl
217 << "Possible cause is constant-expression evaluation invalid." << endl;
218 backtrace( 2 ); // skip first 2 stack frames
219 abort(); // cause core dump for debugging
220} // sigFpeHandler
221
222static void sigAbortHandler( SIGPARMS ) {
223 backtrace( 6 ); // skip first 6 stack frames
224 Signal( SIGABRT, SIG_DFL, SA_SIGINFO ); // reset default signal handler
225 raise( SIGABRT ); // reraise SIGABRT
226} // sigAbortHandler
227
228int main( int argc, char * argv[] ) {
229 FILE * input; // use FILE rather than istream because yyin is FILE
230 ostream * output = & cout;
231 list< Declaration * > translationUnit;
232
233 Signal( SIGSEGV, sigSegvBusHandler, SA_SIGINFO );
234 Signal( SIGBUS, sigSegvBusHandler, SA_SIGINFO );
235 Signal( SIGFPE, sigFpeHandler, SA_SIGINFO );
236 Signal( SIGABRT, sigAbortHandler, SA_SIGINFO );
237
238 // cout << "main" << endl;
239 // for ( int i = 0; i < argc; i += 1 ) {
240 // cout << '\t' << argv[i] << endl;
241 // } // for
242
243 parse_cmdline( argc, argv ); // process command-line arguments
244 CodeGen::FixMain::setReplaceMain( !nomainp );
245
246 if ( waiting_for_gdb ) {
247 cerr << "Waiting for gdb" << endl;
248 cerr << "run :" << endl;
249 cerr << " gdb attach " << getpid() << endl;
250 raise(SIGSTOP);
251 } // if
252
253 try {
254 // choose to read the program from a file or stdin
255 if ( optind < argc ) { // any commands after the flags ? => input file name
256 input = fopen( argv[ optind ], "r" );
257 assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
258 optind += 1;
259 } else { // no input file name
260 input = stdin;
261 } // if
262
263 Stats::Time::StartGlobal();
264 NewPass("Parse");
265 Stats::Time::StartBlock("Parse");
266
267 // read in the builtins, extras, and the prelude
268 if ( ! nopreludep ) { // include gcc builtins
269 // -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
270
271 assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
272
273 // Read to gcc builtins, if not generating the cfa library
274 FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
275 assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
276 parse( gcc_builtins, LinkageSpec::Compiler );
277
278 // read the extra prelude in, if not generating the cfa library
279 FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
280 assertf( extras, "cannot open extras.cf\n" );
281 parse( extras, LinkageSpec::BuiltinC );
282
283 if ( ! libcfap ) {
284 // read the prelude in, if not generating the cfa library
285 FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
286 assertf( prelude, "cannot open prelude.cfa\n" );
287 parse( prelude, LinkageSpec::Intrinsic );
288
289 // Read to cfa builtins, if not generating the cfa library
290 FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
291 assertf( builtins, "cannot open builtins.cf\n" );
292 parse( builtins, LinkageSpec::BuiltinCFA );
293 } // if
294 } // if
295
296 parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
297
298 if ( parsep ) {
299 parseTree->printList( cout );
300 delete parseTree;
301 return EXIT_SUCCESS;
302 } // if
303
304 buildList( parseTree, translationUnit );
305 delete parseTree;
306 parseTree = nullptr;
307
308 if ( astp ) {
309 dump( translationUnit );
310 return EXIT_SUCCESS;
311 } // if
312
313 // Temporary: fill locations after parsing so that every node has a location, for early error messages.
314 // Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
315 // works okay for now.
316 CodeTools::fillLocations( translationUnit );
317 Stats::Time::StopBlock();
318
319 PASS( "Translate Exception Declarations", ControlStruct::translateExcept( translationUnit ) );
320 if ( exdeclp ) {
321 dump( translationUnit );
322 return EXIT_SUCCESS;
323 } // if
324
325 // add the assignment statement after the initialization of a type parameter
326 PASS( "Validate-A", SymTab::validate_A( translationUnit ) );
327 PASS( "Validate-B", SymTab::validate_B( translationUnit ) );
328 PASS( "Validate-C", SymTab::validate_C( translationUnit ) );
329
330 CodeTools::fillLocations( translationUnit );
331
332 if( useNewAST ) {
333 PASS( "Apply Concurrent Keywords", Concurrency::applyKeywords( translationUnit ) );
334 PASS( "Forall Pointer Decay", SymTab::decayForallPointers( translationUnit ) );
335 CodeTools::fillLocations( translationUnit );
336
337 if (Stats::Counters::enabled) {
338 ast::pass_visitor_stats.avg = Stats::Counters::build<Stats::Counters::AverageCounter<double>>("Average Depth - New");
339 ast::pass_visitor_stats.max = Stats::Counters::build<Stats::Counters::MaxCounter<double>>("Max depth - New");
340 }
341 auto transUnit = convert( move( translationUnit ) );
342
343 forceFillCodeLocations( transUnit );
344
345 // Must happen before autogen routines are added.
346 PASS( "Hoist Control Declarations", ControlStruct::hoistControlDecls( transUnit ) );
347
348 // Must be after enum and pointer decay.
349 // Must be before compound literals.
350 PASS( "Generate Autogen Routines", Validate::autogenerateRoutines( transUnit ) );
351
352 PASS( "Implement Mutex", Concurrency::implementMutex( transUnit ) );
353 PASS( "Implement Thread Start", Concurrency::implementThreadStarter( transUnit ) );
354 PASS( "Compound Literal", Validate::handleCompoundLiterals( transUnit ) );
355 PASS( "Set Length From Initializer", Validate::setLengthFromInitializer( transUnit ) );
356 PASS( "Find Global Decls", Validate::findGlobalDecls( transUnit ) );
357 PASS( "Fix Label Address", Validate::fixLabelAddresses( transUnit ) );
358
359 if ( symtabp ) {
360 return EXIT_SUCCESS;
361 } // if
362
363 if ( expraltp ) {
364 ResolvExpr::printCandidates( transUnit );
365 return EXIT_SUCCESS;
366 } // if
367
368 if ( validp ) {
369 dump( move( transUnit ) );
370 return EXIT_SUCCESS;
371 } // if
372
373 PASS( "Translate Throws", ControlStruct::translateThrows( transUnit ) );
374 PASS( "Fix Labels", ControlStruct::fixLabels( transUnit ) );
375 PASS( "Fix Names", CodeGen::fixNames( transUnit ) );
376 PASS( "Gen Init", InitTweak::genInit( transUnit ) );
377 PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( transUnit ) );
378
379 if ( libcfap ) {
380 // Generate the bodies of cfa library functions.
381 LibCfa::makeLibCfa( transUnit );
382 } // if
383
384 if ( declstatsp ) {
385 printDeclStats( transUnit );
386 return EXIT_SUCCESS;
387 } // if
388
389 if ( bresolvep ) {
390 dump( move( transUnit ) );
391 return EXIT_SUCCESS;
392 } // if
393
394 if ( resolvprotop ) {
395 dumpAsResolverProto( transUnit );
396 return EXIT_SUCCESS;
397 } // if
398
399 PASS( "Resolve", ResolvExpr::resolve( transUnit ) );
400 if ( exprp ) {
401 dump( move( transUnit ) );
402 return EXIT_SUCCESS;
403 } // if
404
405 forceFillCodeLocations( transUnit );
406
407 PASS( "Fix Init", InitTweak::fix(transUnit, buildingLibrary()));
408
409 // fix ObjectDecl - replaces ConstructorInit nodes
410 if ( ctorinitp ) {
411 dump( move( transUnit ) );
412 return EXIT_SUCCESS;
413 } // if
414
415 // Currently not working due to unresolved issues with UniqueExpr
416 PASS( "Expand Unique Expr", Tuples::expandUniqueExpr( transUnit ) ); // 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
417
418 PASS( "Translate Tries" , ControlStruct::translateTries( transUnit ) );
419
420 translationUnit = convert( move( transUnit ) );
421 } else {
422 PASS( "Validate-D", SymTab::validate_D( translationUnit ) );
423 PASS( "Validate-E", SymTab::validate_E( translationUnit ) );
424 PASS( "Validate-F", SymTab::validate_F( translationUnit ) );
425
426 if ( symtabp ) {
427 deleteAll( translationUnit );
428 return EXIT_SUCCESS;
429 } // if
430
431 if ( expraltp ) {
432 PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
433 acceptAll( translationUnit, printer );
434 return EXIT_SUCCESS;
435 } // if
436
437 if ( validp ) {
438 dump( translationUnit );
439 return EXIT_SUCCESS;
440 } // if
441
442 PASS( "Translate Throws", ControlStruct::translateThrows( translationUnit ) );
443 PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
444 PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
445 PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
446 PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
447
448 if ( libcfap ) {
449 // Generate the bodies of cfa library functions.
450 LibCfa::makeLibCfa( translationUnit );
451 } // if
452
453 if ( declstatsp ) {
454 CodeTools::printDeclStats( translationUnit );
455 deleteAll( translationUnit );
456 return EXIT_SUCCESS;
457 } // if
458
459 if ( bresolvep ) {
460 dump( translationUnit );
461 return EXIT_SUCCESS;
462 } // if
463
464 CodeTools::fillLocations( translationUnit );
465
466 if ( resolvprotop ) {
467 CodeTools::dumpAsResolvProto( translationUnit );
468 return EXIT_SUCCESS;
469 } // if
470
471 PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
472 if ( exprp ) {
473 dump( translationUnit );
474 return EXIT_SUCCESS;
475 }
476
477 PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
478
479 // fix ObjectDecl - replaces ConstructorInit nodes
480 if ( ctorinitp ) {
481 dump ( translationUnit );
482 return EXIT_SUCCESS;
483 } // if
484
485 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
486
487 PASS( "Translate Tries" , ControlStruct::translateTries( translationUnit ) );
488 }
489
490
491
492 PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
493
494 PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
495
496 PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
497
498 if ( tuplep ) {
499 dump( translationUnit );
500 return EXIT_SUCCESS;
501 } // if
502
503 PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
504
505 PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
506 if ( genericsp ) {
507 dump( translationUnit );
508 return EXIT_SUCCESS;
509 } // if
510
511 PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
512
513 if ( bboxp ) {
514 dump( translationUnit );
515 return EXIT_SUCCESS;
516 } // if
517 PASS( "Box", GenPoly::box( translationUnit ) );
518
519 PASS( "Link-Once", CodeGen::translateLinkOnce( translationUnit ) );
520
521 // Code has been lowered to C, now we can start generation.
522
523 if ( bcodegenp ) {
524 dump( translationUnit );
525 return EXIT_SUCCESS;
526 } // if
527
528 if ( optind < argc ) { // any commands after the flags and input file ? => output file name
529 output = new ofstream( argv[ optind ] );
530 } // if
531
532 CodeTools::fillLocations( translationUnit );
533 PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
534
535 CodeGen::FixMain::fix( translationUnit, *output,
536 (PreludeDirector + "/bootloader.c").c_str() );
537 if ( output != &cout ) {
538 delete output;
539 } // if
540 } catch ( SemanticErrorException & e ) {
541 if ( errorp ) {
542 cerr << "---AST at error:---" << endl;
543 dump( translationUnit, cerr );
544 cerr << endl << "---End of AST, begin error message:---\n" << endl;
545 } // if
546 e.print();
547 if ( output != &cout ) {
548 delete output;
549 } // if
550 return EXIT_FAILURE;
551 } catch ( UnimplementedError & e ) {
552 cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
553 if ( output != &cout ) {
554 delete output;
555 } // if
556 return EXIT_FAILURE;
557 } catch ( CompilerError & e ) {
558 cerr << "Compiler Error: " << e.get_what() << endl;
559 cerr << "(please report bugs to [REDACTED])" << endl;
560 if ( output != &cout ) {
561 delete output;
562 } // if
563 return EXIT_FAILURE;
564 } catch ( std::bad_alloc & ) {
565 cerr << "*cfa-cpp compilation error* std::bad_alloc" << endl;
566 backtrace( 1 );
567 abort();
568 } catch ( ... ) {
569 exception_ptr eptr = current_exception();
570 try {
571 if (eptr) {
572 rethrow_exception(eptr);
573 } else {
574 cerr << "*cfa-cpp compilation error* exception uncaught and unknown" << endl;
575 } // if
576 } catch( const exception & e ) {
577 cerr << "*cfa-cpp compilation error* uncaught exception \"" << e.what() << "\"\n";
578 } // try
579 return EXIT_FAILURE;
580 } // try
581
582 deleteAll( translationUnit );
583 Stats::print();
584 return EXIT_SUCCESS;
585} // main
586
587
588static const char optstring[] = ":c:ghlLmNnpdOAP:S:twW:D:";
589
590enum { PreludeDir = 128 };
591static struct option long_opts[] = {
592 { "colors", required_argument, nullptr, 'c' },
593 { "gdb", no_argument, nullptr, 'g' },
594 { "help", no_argument, nullptr, 'h' },
595 { "libcfa", no_argument, nullptr, 'l' },
596 { "linemarks", no_argument, nullptr, 'L' },
597 { "no-main", no_argument, 0, 'm' },
598 { "no-linemarks", no_argument, nullptr, 'N' },
599 { "no-prelude", no_argument, nullptr, 'n' },
600 { "prototypes", no_argument, nullptr, 'p' },
601 { "deterministic-out", no_argument, nullptr, 'd' },
602 { "old-ast", no_argument, nullptr, 'O'},
603 { "new-ast", no_argument, nullptr, 'A'},
604 { "print", required_argument, nullptr, 'P' },
605 { "prelude-dir", required_argument, nullptr, PreludeDir },
606 { "statistics", required_argument, nullptr, 'S' },
607 { "tree", no_argument, nullptr, 't' },
608 { "", no_argument, nullptr, 0 }, // -w
609 { "", no_argument, nullptr, 0 }, // -W
610 { "", no_argument, nullptr, 0 }, // -D
611 { nullptr, 0, nullptr, 0 }
612}; // long_opts
613
614static const char * description[] = {
615 "diagnostic color: never, always, auto", // -c
616 "wait for gdb to attach", // -g
617 "print translator help message", // -h
618 "generate libcfa.c", // -l
619 "generate line marks", // -L
620 "do not replace main", // -m
621 "do not generate line marks", // -N
622 "do not read prelude", // -n
623 "do not generate prelude prototypes => prelude not printed", // -p
624 "only print deterministic output", // -d
625 "Use the old-ast", // -O
626 "Use the new-ast", // -A
627 "print", // -P
628 "<directory> prelude directory for debug/nodebug", // no flag
629 "<option-list> enable profiling information: counters, heap, time, all, none", // -S
630 "building cfa standard lib", // -t
631 "", // -w
632 "", // -W
633 "", // -D
634}; // description
635
636static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
637
638static struct Printopts {
639 const char * name;
640 int & flag;
641 int val;
642 const char * descript;
643} printopts[] = {
644 { "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
645 { "asterr", errorp, true, "print AST on error" },
646 { "declstats", declstatsp, true, "code property statistics" },
647 { "parse", yydebug, true, "yacc (parsing) debug information" },
648 { "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
649 { "rproto", resolvprotop, true, "resolver-proto instance" },
650 { "rsteps", resolvep, true, "print resolver steps" },
651 { "tree", parsep, true, "print parse tree" },
652 // code dumps
653 { "ast", astp, true, "print AST after parsing" },
654 { "exdecl", exdeclp, true, "print AST after translating exception decls" },
655 { "symevt", symtabp, true, "print AST after symbol table events" },
656 { "altexpr", expraltp, true, "print alternatives for expressions" },
657 { "astdecl", validp, true, "print AST after declaration validation pass" },
658 { "resolver", bresolvep, true, "print AST before resolver step" },
659 { "astexpr", exprp, true, "print AST after expression analysis" },
660 { "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
661 { "tuple", tuplep, true, "print AST after tuple expansion" },
662 { "astgen", genericsp, true, "print AST after instantiate generics" },
663 { "box", bboxp, true, "print AST before box step" },
664 { "codegen", bcodegenp, true, "print AST before code generation" },
665};
666enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
667
668static void usage( char * argv[] ) {
669 cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
670 int i = 0, j = 1; // j skips starting colon
671 for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
672 if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
673 if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
674 cout << " -" << optstring[j] << ",";
675 } else { // no flag
676 j -= 1; // compensate
677 cout << " ";
678 } // if
679 cout << " --" << left << setw(12) << long_opts[i].name << " ";
680 if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
681 cout << "one of: " << endl;
682 for ( int i = 0; i < printoptsSize; i += 1 ) {
683 cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
684 } // for
685 } else {
686 cout << description[i] << endl;
687 } // if
688 } // if
689 if ( optstring[j + 1] == ':' ) j += 1;
690 } // for
691 if ( long_opts[i].name != 0 || optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
692 exit( EXIT_FAILURE );
693} // usage
694
695static void parse_cmdline( int argc, char * argv[] ) {
696 opterr = 0; // (global) prevent getopt from printing error messages
697
698 bool Wsuppress = false, Werror = false;
699 int c;
700 while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
701 switch ( c ) {
702 case 'c': // diagnostic colors
703 if ( strcmp( optarg, "always" ) == 0 ) {
704 ErrorHelpers::colors = ErrorHelpers::Colors::Always;
705 } else if ( strcmp( optarg, "never" ) == 0 ) {
706 ErrorHelpers::colors = ErrorHelpers::Colors::Never;
707 } else if ( strcmp( optarg, "auto" ) == 0 ) {
708 ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
709 } // if
710 break;
711 case 'h': // help message
712 usage( argv ); // no return
713 break;
714 case 'l': // generate libcfa.c
715 libcfap = true;
716 break;
717 case 'L': // generate line marks
718 linemarks = true;
719 break;
720 case 'm': // do not replace main
721 nomainp = true;
722 break;
723 case 'N': // do not generate line marks
724 linemarks = false;
725 break;
726 case 'n': // do not read prelude
727 nopreludep = true;
728 break;
729 case 'p': // generate prototypes for prelude functions
730 genproto = true;
731 break;
732 case 'd': // don't print non-deterministic output
733 deterministic_output = true;
734 break;
735 case 'O': // don't print non-deterministic output
736 useNewAST = false;
737 break;
738 case 'A': // don't print non-deterministic output
739 useNewAST = true;
740 break;
741 case 'P': // print options
742 for ( int i = 0;; i += 1 ) {
743 if ( i == printoptsSize ) {
744 cout << "Unknown --print option " << optarg << endl;
745 goto Default;
746 } // if
747 if ( strcmp( optarg, printopts[i].name ) == 0 ) {
748 printopts[i].flag = printopts[i].val;
749 break;
750 } // if
751 } // for
752 break;
753 case PreludeDir: // prelude directory for debug/nodebug, hidden
754 PreludeDirector = optarg;
755 break;
756 case 'S': // enable profiling information, argument comma separated list of names
757 Stats::parse_params( optarg );
758 break;
759 case 't': // building cfa stdlib
760 treep = true;
761 break;
762 case 'g': // wait for gdb
763 waiting_for_gdb = true;
764 break;
765 case 'w': // suppress all warnings, hidden
766 Wsuppress = true;
767 break;
768 case 'W': // coordinate gcc -W with CFA, hidden
769 if ( strcmp( optarg, "all" ) == 0 ) {
770 SemanticWarning_EnableAll();
771 } else if ( strcmp( optarg, "error" ) == 0 ) {
772 Werror = true;
773 } else {
774 char * warning = optarg;
775 Severity s;
776 if ( strncmp( optarg, "no-", 3 ) == 0 ) {
777 warning += 3;
778 s = Severity::Suppress;
779 } else {
780 s = Severity::Warn;
781 } // if
782 SemanticWarning_Set( warning, s );
783 } // if
784 break;
785 case 'D': // ignore -Dxxx, forwarded by cpp, hidden
786 break;
787 case '?': // unknown option
788 if ( optopt ) { // short option ?
789 cout << "Unknown option -" << (char)optopt << endl;
790 } else {
791 cout << "Unknown option " << argv[optind - 1] << endl;
792 } // if
793 goto Default;
794 case ':': // missing option
795 if ( optopt ) { // short option ?
796 cout << "Missing option for -" << (char)optopt << endl;
797 } else {
798 cout << "Missing option for " << argv[optind - 1] << endl;
799 } // if
800 goto Default;
801 Default:
802 default:
803 usage( argv ); // no return
804 } // switch
805 } // while
806
807 if ( Werror ) {
808 SemanticWarning_WarningAsError();
809 } // if
810 if ( Wsuppress ) {
811 SemanticWarning_SuppressAll();
812 } // if
813 // for ( const auto w : WarningFormats ) {
814 // cout << w.name << ' ' << (int)w.severity << endl;
815 // } // for
816} // parse_cmdline
817
818static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
819 extern int yyparse( void );
820 extern FILE * yyin;
821 extern int yylineno;
822
823 ::linkage = linkage; // set globals
824 yyin = input;
825 yylineno = 1;
826 int parseStatus = yyparse();
827
828 fclose( input );
829 if ( shouldExit || parseStatus != 0 ) {
830 exit( parseStatus );
831 } // if
832} // parse
833
834static bool notPrelude( Declaration * decl ) {
835 return ! LinkageSpec::isBuiltin( decl->get_linkage() );
836} // notPrelude
837
838static void dump( list< Declaration * > & translationUnit, ostream & out ) {
839 list< Declaration * > decls;
840
841 if ( genproto ) {
842 filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
843 } else {
844 decls = translationUnit;
845 } // if
846
847 // depending on commandline options, either generate code or dump the AST
848 if ( codegenp ) {
849 CodeGen::generate( decls, out, ! genproto, prettycodegenp );
850 } else {
851 printAll( decls, out );
852 } // if
853 deleteAll( translationUnit );
854} // dump
855
856static void dump( ast::TranslationUnit && transUnit, ostream & out ) {
857 std::list< Declaration * > translationUnit = convert( move( transUnit ) );
858 dump( translationUnit, out );
859}
860
861// Local Variables: //
862// tab-width: 4 //
863// mode: c++ //
864// compile-command: "make install" //
865// End: //
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