source: src/main.cc@ f75e25b

ADT ast-experimental pthread-emulation qualifiedEnum
Last change on this file since f75e25b was 0c939dd, checked in by Andrew Beach <ajbeach@…>, 3 years ago

Removed extra include, it should compile again.

  • Property mode set to 100644
File size: 32.8 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 : Fri Apr 29 9:52:00 2022
13// Update Count : 673
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/CompoundLiteral.hpp" // for handleCompoundLiterals
78#include "Validate/EliminateTypedef.hpp" // for eliminateTypedef
79#include "Validate/FindSpecialDecls.h" // for findGlobalDecls
80#include "Validate/FixQualifiedTypes.hpp" // for fixQualifiedTypes
81#include "Validate/ForallPointerDecay.hpp" // for decayForallPointers
82#include "Validate/GenericParameter.hpp" // for fillGenericParameters, tr...
83#include "Validate/HoistStruct.hpp" // for hoistStruct
84#include "Validate/InitializerLength.hpp" // for setLengthFromInitializer
85#include "Validate/LabelAddressFixer.hpp" // for fixLabelAddresses
86#include "Validate/ReturnCheck.hpp" // for checkReturnStatements
87#include "Virtual/ExpandCasts.h" // for expandCasts
88
89static void NewPass( const char * const name ) {
90 Stats::Heap::newPass( name );
91 using namespace Stats::Counters;
92 {
93 static auto group = build<CounterGroup>( "Pass Visitor" );
94 auto pass = build<CounterGroup>( name, group );
95 pass_visitor_stats.depth = 0;
96 pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
97 pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
98 }
99 {
100 static auto group = build<CounterGroup>( "Syntax Node" );
101 auto pass = build<CounterGroup>( name, group );
102 BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
103 }
104}
105
106#define PASS( name, pass ) \
107 if ( errorp ) { cerr << name << endl; } \
108 NewPass(name); \
109 Stats::Time::StartBlock(name); \
110 pass; \
111 Stats::Time::StopBlock();
112
113LinkageSpec::Spec linkage = LinkageSpec::Cforall;
114TypedefTable typedefTable;
115DeclarationNode * parseTree = nullptr; // program parse tree
116
117static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
118
119static string PreludeDirector = "";
120
121static void parse_cmdline( int argc, char * argv[] );
122static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
123static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
124static void dump( ast::TranslationUnit && transUnit, ostream & out = cout );
125
126static void backtrace( int start ) { // skip first N stack frames
127 enum { Frames = 50, }; // maximum number of stack frames
128 void * array[Frames];
129 size_t size = ::backtrace( array, Frames );
130 char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
131
132 *index( messages[0], '(' ) = '\0'; // find executable name
133 cerr << "Stack back trace for: " << messages[0] << endl;
134
135 // skip last 2 stack frames after main
136 for ( unsigned int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
137 char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
138
139 for ( char * p = messages[i]; *p; p += 1 ) { // find parantheses and +offset
140 if ( *p == '(' ) {
141 mangled_name = p;
142 } else if ( *p == '+' ) {
143 offset_begin = p;
144 } else if ( *p == ')' ) {
145 offset_end = p;
146 break;
147 } // if
148 } // for
149
150 // if line contains symbol, attempt to demangle
151 int frameNo = i - start;
152 if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
153 *mangled_name++ = '\0'; // delimit strings
154 *offset_begin++ = '\0';
155 *offset_end++ = '\0';
156
157 int status;
158 char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
159 // bug in __cxa_demangle for single-character lower-case non-mangled names
160 if ( status == 0 ) { // demangling successful ?
161 cerr << "(" << frameNo << ") " << messages[i] << " : "
162 << real_name << "+" << offset_begin << offset_end << endl;
163 } else { // otherwise, output mangled name
164 cerr << "(" << frameNo << ") " << messages[i] << " : "
165 << mangled_name << "(/*unknown*/)+" << offset_begin << offset_end << endl;
166 } // if
167
168 free( real_name );
169 } else { // otherwise, print the whole line
170 cerr << "(" << frameNo << ") " << messages[i] << endl;
171 } // if
172 } // for
173
174 free( messages );
175} // backtrace
176
177#define SIGPARMS int sig __attribute__(( unused )), siginfo_t * sfp __attribute__(( unused )), ucontext_t * cxt __attribute__(( unused ))
178
179static void _Signal(struct sigaction & act, int sig, int flags ) {
180 act.sa_flags = flags;
181
182 if ( sigaction( sig, &act, nullptr ) == -1 ) {
183 cerr << "*cfa-cpp compilation error* problem installing signal handler, error(" << errno << ") " << strerror( errno ) << endl;
184 _exit( EXIT_FAILURE );
185 } // if
186}
187
188static void Signal( int sig, void (* handler)(SIGPARMS), int flags ) {
189 struct sigaction act;
190 act.sa_sigaction = (void (*)(int, siginfo_t *, void *))handler;
191 _Signal(act, sig, flags);
192} // Signal
193
194static void Signal( int sig, void (* handler)(int), int flags ) {
195 struct sigaction act;
196 act.sa_handler = handler;
197 _Signal(act, sig, flags);
198} // Signal
199
200static void sigSegvBusHandler( SIGPARMS ) {
201 if ( sfp->si_addr == nullptr ) {
202 cerr << "Null pointer (nullptr) dereference." << endl;
203 } else {
204 cerr << (sig == SIGSEGV ? "Segment fault" : "Bus error") << " at memory location " << sfp->si_addr << "." << endl
205 << "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;
206 } // if
207 backtrace( 2 ); // skip first 2 stack frames
208 abort(); // cause core dump for debugging
209} // sigSegvBusHandler
210
211static void sigFpeHandler( SIGPARMS ) {
212 const char * msg;
213
214 switch ( sfp->si_code ) {
215 case FPE_INTDIV: case FPE_FLTDIV: msg = "divide by zero"; break;
216 case FPE_FLTOVF: msg = "overflow"; break;
217 case FPE_FLTUND: msg = "underflow"; break;
218 case FPE_FLTRES: msg = "inexact result"; break;
219 case FPE_FLTINV: msg = "invalid operation"; break;
220 default: msg = "unknown";
221 } // choose
222 cerr << "Computation error " << msg << " at location " << sfp->si_addr << endl
223 << "Possible cause is constant-expression evaluation invalid." << endl;
224 backtrace( 2 ); // skip first 2 stack frames
225 abort(); // cause core dump for debugging
226} // sigFpeHandler
227
228static void sigAbortHandler( SIGPARMS ) {
229 backtrace( 6 ); // skip first 6 stack frames
230 Signal( SIGABRT, SIG_DFL, SA_SIGINFO ); // reset default signal handler
231 raise( SIGABRT ); // reraise SIGABRT
232} // sigAbortHandler
233
234int main( int argc, char * argv[] ) {
235 FILE * input; // use FILE rather than istream because yyin is FILE
236 ostream * output = & cout;
237 list< Declaration * > translationUnit;
238
239 Signal( SIGSEGV, sigSegvBusHandler, SA_SIGINFO );
240 Signal( SIGBUS, sigSegvBusHandler, SA_SIGINFO );
241 Signal( SIGFPE, sigFpeHandler, SA_SIGINFO );
242 Signal( SIGABRT, sigAbortHandler, SA_SIGINFO );
243
244 // cout << "main" << endl;
245 // for ( int i = 0; i < argc; i += 1 ) {
246 // cout << '\t' << argv[i] << endl;
247 // } // for
248
249 parse_cmdline( argc, argv ); // process command-line arguments
250 CodeGen::FixMain::setReplaceMain( !nomainp );
251
252 if ( waiting_for_gdb ) {
253 cerr << "Waiting for gdb" << endl;
254 cerr << "run :" << endl;
255 cerr << " gdb attach " << getpid() << endl;
256 raise(SIGSTOP);
257 } // if
258
259 try {
260 // choose to read the program from a file or stdin
261 if ( optind < argc ) { // any commands after the flags ? => input file name
262 input = fopen( argv[ optind ], "r" );
263 assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
264 optind += 1;
265 } else { // no input file name
266 input = stdin;
267 } // if
268
269 Stats::Time::StartGlobal();
270 NewPass("Parse");
271 Stats::Time::StartBlock("Parse");
272
273 // read in the builtins, extras, and the prelude
274 if ( ! nopreludep ) { // include gcc builtins
275 // -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
276
277 assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
278
279 // Read to gcc builtins, if not generating the cfa library
280 FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
281 assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
282 parse( gcc_builtins, LinkageSpec::Compiler );
283
284 // read the extra prelude in, if not generating the cfa library
285 FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
286 assertf( extras, "cannot open extras.cf\n" );
287 parse( extras, LinkageSpec::BuiltinC );
288
289 if ( ! libcfap ) {
290 // read the prelude in, if not generating the cfa library
291 FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
292 assertf( prelude, "cannot open prelude.cfa\n" );
293 parse( prelude, LinkageSpec::Intrinsic );
294
295 // Read to cfa builtins, if not generating the cfa library
296 FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
297 assertf( builtins, "cannot open builtins.cf\n" );
298 parse( builtins, LinkageSpec::BuiltinCFA );
299 } // if
300 } // if
301
302 parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
303
304 if ( parsep ) {
305 parseTree->printList( cout );
306 delete parseTree;
307 return EXIT_SUCCESS;
308 } // if
309
310 buildList( parseTree, translationUnit );
311 delete parseTree;
312 parseTree = nullptr;
313
314 if ( astp ) {
315 dump( translationUnit );
316 return EXIT_SUCCESS;
317 } // if
318
319 // Temporary: fill locations after parsing so that every node has a location, for early error messages.
320 // Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
321 // works okay for now.
322 CodeTools::fillLocations( translationUnit );
323 Stats::Time::StopBlock();
324
325 PASS( "Translate Exception Declarations", ControlStruct::translateExcept( translationUnit ) );
326 if ( exdeclp ) {
327 dump( translationUnit );
328 return EXIT_SUCCESS;
329 } // if
330
331 // add the assignment statement after the initialization of a type parameter
332 PASS( "Validate-A", SymTab::validate_A( translationUnit ) );
333
334 // Must happen before auto-gen, because it uses the sized flag.
335 PASS( "Link Reference To Types", SymTab::linkReferenceToTypes( translationUnit ) );
336
337 CodeTools::fillLocations( translationUnit );
338
339 if( useNewAST ) {
340 CodeTools::fillLocations( translationUnit );
341
342 if (Stats::Counters::enabled) {
343 ast::pass_visitor_stats.avg = Stats::Counters::build<Stats::Counters::AverageCounter<double>>("Average Depth - New");
344 ast::pass_visitor_stats.max = Stats::Counters::build<Stats::Counters::MaxCounter<double>>("Max depth - New");
345 }
346 auto transUnit = convert( move( translationUnit ) );
347
348 forceFillCodeLocations( transUnit );
349
350 // Must happen after Link References To Types,
351 // because aggregate members are accessed.
352 PASS( "Fix Qualified Types", Validate::fixQualifiedTypes( transUnit ) );
353
354 PASS( "Hoist Struct", Validate::hoistStruct( transUnit ) );
355 PASS( "Eliminate Typedef", Validate::eliminateTypedef( transUnit ) );
356
357 // Check as early as possible. Can't happen before
358 // LinkReferenceToType, observed failing when attempted
359 // before eliminateTypedef
360 PASS( "Validate Generic Parameters", Validate::fillGenericParameters( transUnit ) );
361
362 PASS( "Translate Dimensions", Validate::translateDimensionParameters( transUnit ) );
363 PASS( "Check Function Returns", Validate::checkReturnStatements( transUnit ) );
364
365 // Must happen before Autogen.
366 PASS( "Fix Return Statements", InitTweak::fixReturnStatements( transUnit ) );
367
368 PASS( "Implement Concurrent Keywords", Concurrency::implementKeywords( transUnit ) );
369
370 // Must be after implement concurrent keywords; because uniqueIds
371 // must be set on declaration before resolution.
372 // Must happen before autogen routines are added.
373 PASS( "Forall Pointer Decay", Validate::decayForallPointers( transUnit ) );
374
375 // Must happen before autogen routines are added.
376 PASS( "Hoist Control Declarations", ControlStruct::hoistControlDecls( transUnit ) );
377
378 // Must be after enum and pointer decay.
379 // Must be before compound literals.
380 PASS( "Generate Autogen Routines", Validate::autogenerateRoutines( transUnit ) );
381
382 PASS( "Implement Mutex", Concurrency::implementMutex( transUnit ) );
383 PASS( "Implement Thread Start", Concurrency::implementThreadStarter( transUnit ) );
384 PASS( "Compound Literal", Validate::handleCompoundLiterals( transUnit ) );
385 PASS( "Set Length From Initializer", Validate::setLengthFromInitializer( transUnit ) );
386 PASS( "Find Global Decls", Validate::findGlobalDecls( transUnit ) );
387 PASS( "Fix Label Address", Validate::fixLabelAddresses( transUnit ) );
388
389 if ( symtabp ) {
390 return EXIT_SUCCESS;
391 } // if
392
393 if ( expraltp ) {
394 ResolvExpr::printCandidates( transUnit );
395 return EXIT_SUCCESS;
396 } // if
397
398 if ( validp ) {
399 dump( move( transUnit ) );
400 return EXIT_SUCCESS;
401 } // if
402
403 PASS( "Translate Throws", ControlStruct::translateThrows( transUnit ) );
404 PASS( "Fix Labels", ControlStruct::fixLabels( transUnit ) );
405 PASS( "Fix Names", CodeGen::fixNames( transUnit ) );
406 PASS( "Gen Init", InitTweak::genInit( transUnit ) );
407 PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( transUnit ) );
408
409 if ( libcfap ) {
410 // Generate the bodies of cfa library functions.
411 LibCfa::makeLibCfa( transUnit );
412 } // if
413
414 if ( declstatsp ) {
415 printDeclStats( transUnit );
416 return EXIT_SUCCESS;
417 } // if
418
419 if ( bresolvep ) {
420 dump( move( transUnit ) );
421 return EXIT_SUCCESS;
422 } // if
423
424 if ( resolvprotop ) {
425 dumpAsResolverProto( transUnit );
426 return EXIT_SUCCESS;
427 } // if
428
429 PASS( "Resolve", ResolvExpr::resolve( transUnit ) );
430 if ( exprp ) {
431 dump( move( transUnit ) );
432 return EXIT_SUCCESS;
433 } // if
434
435 forceFillCodeLocations( transUnit );
436
437 PASS( "Fix Init", InitTweak::fix(transUnit, buildingLibrary()));
438
439 // fix ObjectDecl - replaces ConstructorInit nodes
440 if ( ctorinitp ) {
441 dump( move( transUnit ) );
442 return EXIT_SUCCESS;
443 } // if
444
445 // Currently not working due to unresolved issues with UniqueExpr
446 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
447
448 PASS( "Translate Tries" , ControlStruct::translateTries( transUnit ) );
449
450 translationUnit = convert( move( transUnit ) );
451 } else {
452 PASS( "Validate-B", SymTab::validate_B( translationUnit ) );
453 PASS( "Validate-C", SymTab::validate_C( translationUnit ) );
454 PASS( "Validate-D", SymTab::validate_D( translationUnit ) );
455 PASS( "Validate-E", SymTab::validate_E( translationUnit ) );
456 PASS( "Validate-F", SymTab::validate_F( translationUnit ) );
457
458 if ( symtabp ) {
459 deleteAll( translationUnit );
460 return EXIT_SUCCESS;
461 } // if
462
463 if ( expraltp ) {
464 PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
465 acceptAll( translationUnit, printer );
466 return EXIT_SUCCESS;
467 } // if
468
469 if ( validp ) {
470 dump( translationUnit );
471 return EXIT_SUCCESS;
472 } // if
473
474 PASS( "Translate Throws", ControlStruct::translateThrows( translationUnit ) );
475 PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
476 PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
477 PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
478 PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
479
480 if ( libcfap ) {
481 // Generate the bodies of cfa library functions.
482 LibCfa::makeLibCfa( translationUnit );
483 } // if
484
485 if ( declstatsp ) {
486 CodeTools::printDeclStats( translationUnit );
487 deleteAll( translationUnit );
488 return EXIT_SUCCESS;
489 } // if
490
491 if ( bresolvep ) {
492 dump( translationUnit );
493 return EXIT_SUCCESS;
494 } // if
495
496 CodeTools::fillLocations( translationUnit );
497
498 if ( resolvprotop ) {
499 CodeTools::dumpAsResolvProto( translationUnit );
500 return EXIT_SUCCESS;
501 } // if
502
503 PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
504 if ( exprp ) {
505 dump( translationUnit );
506 return EXIT_SUCCESS;
507 }
508
509 PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
510
511 // fix ObjectDecl - replaces ConstructorInit nodes
512 if ( ctorinitp ) {
513 dump ( translationUnit );
514 return EXIT_SUCCESS;
515 } // if
516
517 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
518
519 PASS( "Translate Tries" , ControlStruct::translateTries( translationUnit ) );
520 }
521
522 PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
523
524 PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
525
526 PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
527
528 if ( tuplep ) {
529 dump( translationUnit );
530 return EXIT_SUCCESS;
531 } // if
532
533 PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
534
535 PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
536 if ( genericsp ) {
537 dump( translationUnit );
538 return EXIT_SUCCESS;
539 } // if
540
541 PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
542
543 if ( bboxp ) {
544 dump( translationUnit );
545 return EXIT_SUCCESS;
546 } // if
547 PASS( "Box", GenPoly::box( translationUnit ) );
548
549 PASS( "Link-Once", CodeGen::translateLinkOnce( translationUnit ) );
550
551 // Code has been lowered to C, now we can start generation.
552
553 if ( bcodegenp ) {
554 dump( translationUnit );
555 return EXIT_SUCCESS;
556 } // if
557
558 if ( optind < argc ) { // any commands after the flags and input file ? => output file name
559 output = new ofstream( argv[ optind ] );
560 } // if
561
562 CodeTools::fillLocations( translationUnit );
563 PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
564
565 CodeGen::FixMain::fix( translationUnit, *output,
566 (PreludeDirector + "/bootloader.c").c_str() );
567 if ( output != &cout ) {
568 delete output;
569 } // if
570 } catch ( SemanticErrorException & e ) {
571 if ( errorp ) {
572 cerr << "---AST at error:---" << endl;
573 dump( translationUnit, cerr );
574 cerr << endl << "---End of AST, begin error message:---\n" << endl;
575 } // if
576 e.print();
577 if ( output != &cout ) {
578 delete output;
579 } // if
580 return EXIT_FAILURE;
581 } catch ( UnimplementedError & e ) {
582 cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
583 if ( output != &cout ) {
584 delete output;
585 } // if
586 return EXIT_FAILURE;
587 } catch ( CompilerError & e ) {
588 cerr << "Compiler Error: " << e.get_what() << endl;
589 cerr << "(please report bugs to [REDACTED])" << endl;
590 if ( output != &cout ) {
591 delete output;
592 } // if
593 return EXIT_FAILURE;
594 } catch ( std::bad_alloc & ) {
595 cerr << "*cfa-cpp compilation error* std::bad_alloc" << endl;
596 backtrace( 1 );
597 abort();
598 } catch ( ... ) {
599 exception_ptr eptr = current_exception();
600 try {
601 if (eptr) {
602 rethrow_exception(eptr);
603 } else {
604 cerr << "*cfa-cpp compilation error* exception uncaught and unknown" << endl;
605 } // if
606 } catch( const exception & e ) {
607 cerr << "*cfa-cpp compilation error* uncaught exception \"" << e.what() << "\"\n";
608 } // try
609 return EXIT_FAILURE;
610 } // try
611
612 deleteAll( translationUnit );
613 Stats::print();
614 return EXIT_SUCCESS;
615} // main
616
617
618static const char optstring[] = ":c:ghlLmNnpdOAP:S:twW:D:";
619
620enum { PreludeDir = 128 };
621static struct option long_opts[] = {
622 { "colors", required_argument, nullptr, 'c' },
623 { "gdb", no_argument, nullptr, 'g' },
624 { "help", no_argument, nullptr, 'h' },
625 { "libcfa", no_argument, nullptr, 'l' },
626 { "linemarks", no_argument, nullptr, 'L' },
627 { "no-main", no_argument, 0, 'm' },
628 { "no-linemarks", no_argument, nullptr, 'N' },
629 { "no-prelude", no_argument, nullptr, 'n' },
630 { "prototypes", no_argument, nullptr, 'p' },
631 { "deterministic-out", no_argument, nullptr, 'd' },
632 { "old-ast", no_argument, nullptr, 'O'},
633 { "new-ast", no_argument, nullptr, 'A'},
634 { "print", required_argument, nullptr, 'P' },
635 { "prelude-dir", required_argument, nullptr, PreludeDir },
636 { "statistics", required_argument, nullptr, 'S' },
637 { "tree", no_argument, nullptr, 't' },
638 { "", no_argument, nullptr, 0 }, // -w
639 { "", no_argument, nullptr, 0 }, // -W
640 { "", no_argument, nullptr, 0 }, // -D
641 { nullptr, 0, nullptr, 0 }
642}; // long_opts
643
644static const char * description[] = {
645 "diagnostic color: never, always, auto", // -c
646 "wait for gdb to attach", // -g
647 "print translator help message", // -h
648 "generate libcfa.c", // -l
649 "generate line marks", // -L
650 "do not replace main", // -m
651 "do not generate line marks", // -N
652 "do not read prelude", // -n
653 "do not generate prelude prototypes => prelude not printed", // -p
654 "only print deterministic output", // -d
655 "Use the old-ast", // -O
656 "Use the new-ast", // -A
657 "print", // -P
658 "<directory> prelude directory for debug/nodebug", // no flag
659 "<option-list> enable profiling information: counters, heap, time, all, none", // -S
660 "building cfa standard lib", // -t
661 "", // -w
662 "", // -W
663 "", // -D
664}; // description
665
666static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
667
668static struct Printopts {
669 const char * name;
670 int & flag;
671 int val;
672 const char * descript;
673} printopts[] = {
674 { "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
675 { "asterr", errorp, true, "print AST on error" },
676 { "declstats", declstatsp, true, "code property statistics" },
677 { "parse", yydebug, true, "yacc (parsing) debug information" },
678 { "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
679 { "rproto", resolvprotop, true, "resolver-proto instance" },
680 { "rsteps", resolvep, true, "print resolver steps" },
681 { "tree", parsep, true, "print parse tree" },
682 // code dumps
683 { "ast", astp, true, "print AST after parsing" },
684 { "exdecl", exdeclp, true, "print AST after translating exception decls" },
685 { "symevt", symtabp, true, "print AST after symbol table events" },
686 { "altexpr", expraltp, true, "print alternatives for expressions" },
687 { "astdecl", validp, true, "print AST after declaration validation pass" },
688 { "resolver", bresolvep, true, "print AST before resolver step" },
689 { "astexpr", exprp, true, "print AST after expression analysis" },
690 { "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
691 { "tuple", tuplep, true, "print AST after tuple expansion" },
692 { "astgen", genericsp, true, "print AST after instantiate generics" },
693 { "box", bboxp, true, "print AST before box step" },
694 { "codegen", bcodegenp, true, "print AST before code generation" },
695};
696enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
697
698static void usage( char * argv[] ) {
699 cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
700 int i = 0, j = 1; // j skips starting colon
701 for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
702 if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
703 if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
704 cout << " -" << optstring[j] << ",";
705 } else { // no flag
706 j -= 1; // compensate
707 cout << " ";
708 } // if
709 cout << " --" << left << setw(12) << long_opts[i].name << " ";
710 if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
711 cout << "one of: " << endl;
712 for ( int i = 0; i < printoptsSize; i += 1 ) {
713 cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
714 } // for
715 } else {
716 cout << description[i] << endl;
717 } // if
718 } // if
719 if ( optstring[j + 1] == ':' ) j += 1;
720 } // for
721 if ( long_opts[i].name != 0 || optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
722 exit( EXIT_FAILURE );
723} // usage
724
725static void parse_cmdline( int argc, char * argv[] ) {
726 opterr = 0; // (global) prevent getopt from printing error messages
727
728 bool Wsuppress = false, Werror = false;
729 int c;
730 while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
731 switch ( c ) {
732 case 'c': // diagnostic colors
733 if ( strcmp( optarg, "always" ) == 0 ) {
734 ErrorHelpers::colors = ErrorHelpers::Colors::Always;
735 } else if ( strcmp( optarg, "never" ) == 0 ) {
736 ErrorHelpers::colors = ErrorHelpers::Colors::Never;
737 } else if ( strcmp( optarg, "auto" ) == 0 ) {
738 ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
739 } // if
740 break;
741 case 'h': // help message
742 usage( argv ); // no return
743 break;
744 case 'l': // generate libcfa.c
745 libcfap = true;
746 break;
747 case 'L': // generate line marks
748 linemarks = true;
749 break;
750 case 'm': // do not replace main
751 nomainp = true;
752 break;
753 case 'N': // do not generate line marks
754 linemarks = false;
755 break;
756 case 'n': // do not read prelude
757 nopreludep = true;
758 break;
759 case 'p': // generate prototypes for prelude functions
760 genproto = true;
761 break;
762 case 'd': // don't print non-deterministic output
763 deterministic_output = true;
764 break;
765 case 'O': // don't print non-deterministic output
766 useNewAST = false;
767 break;
768 case 'A': // don't print non-deterministic output
769 useNewAST = true;
770 break;
771 case 'P': // print options
772 for ( int i = 0;; i += 1 ) {
773 if ( i == printoptsSize ) {
774 cout << "Unknown --print option " << optarg << endl;
775 goto Default;
776 } // if
777 if ( strcmp( optarg, printopts[i].name ) == 0 ) {
778 printopts[i].flag = printopts[i].val;
779 break;
780 } // if
781 } // for
782 break;
783 case PreludeDir: // prelude directory for debug/nodebug, hidden
784 PreludeDirector = optarg;
785 break;
786 case 'S': // enable profiling information, argument comma separated list of names
787 Stats::parse_params( optarg );
788 break;
789 case 't': // building cfa stdlib
790 treep = true;
791 break;
792 case 'g': // wait for gdb
793 waiting_for_gdb = true;
794 break;
795 case 'w': // suppress all warnings, hidden
796 Wsuppress = true;
797 break;
798 case 'W': // coordinate gcc -W with CFA, hidden
799 if ( strcmp( optarg, "all" ) == 0 ) {
800 SemanticWarning_EnableAll();
801 } else if ( strcmp( optarg, "error" ) == 0 ) {
802 Werror = true;
803 } else {
804 char * warning = optarg;
805 Severity s;
806 if ( strncmp( optarg, "no-", 3 ) == 0 ) {
807 warning += 3;
808 s = Severity::Suppress;
809 } else {
810 s = Severity::Warn;
811 } // if
812 SemanticWarning_Set( warning, s );
813 } // if
814 break;
815 case 'D': // ignore -Dxxx, forwarded by cpp, hidden
816 break;
817 case '?': // unknown option
818 if ( optopt ) { // short option ?
819 cout << "Unknown option -" << (char)optopt << endl;
820 } else {
821 cout << "Unknown option " << argv[optind - 1] << endl;
822 } // if
823 goto Default;
824 case ':': // missing option
825 if ( optopt ) { // short option ?
826 cout << "Missing option for -" << (char)optopt << endl;
827 } else {
828 cout << "Missing option for " << argv[optind - 1] << endl;
829 } // if
830 goto Default;
831 Default:
832 default:
833 usage( argv ); // no return
834 } // switch
835 } // while
836
837 if ( Werror ) {
838 SemanticWarning_WarningAsError();
839 } // if
840 if ( Wsuppress ) {
841 SemanticWarning_SuppressAll();
842 } // if
843 // for ( const auto w : WarningFormats ) {
844 // cout << w.name << ' ' << (int)w.severity << endl;
845 // } // for
846} // parse_cmdline
847
848static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
849 extern int yyparse( void );
850 extern FILE * yyin;
851 extern int yylineno;
852
853 ::linkage = linkage; // set globals
854 yyin = input;
855 yylineno = 1;
856 int parseStatus = yyparse();
857
858 fclose( input );
859 if ( shouldExit || parseStatus != 0 ) {
860 exit( parseStatus );
861 } // if
862} // parse
863
864static bool notPrelude( Declaration * decl ) {
865 return ! LinkageSpec::isBuiltin( decl->get_linkage() );
866} // notPrelude
867
868static void dump( list< Declaration * > & translationUnit, ostream & out ) {
869 list< Declaration * > decls;
870
871 if ( genproto ) {
872 filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
873 } else {
874 decls = translationUnit;
875 } // if
876
877 // depending on commandline options, either generate code or dump the AST
878 if ( codegenp ) {
879 CodeGen::generate( decls, out, ! genproto, prettycodegenp );
880 } else {
881 printAll( decls, out );
882 } // if
883 deleteAll( translationUnit );
884} // dump
885
886static void dump( ast::TranslationUnit && transUnit, ostream & out ) {
887 std::list< Declaration * > translationUnit = convert( move( transUnit ) );
888 dump( translationUnit, out );
889}
890
891// Local Variables: //
892// tab-width: 4 //
893// mode: c++ //
894// compile-command: "make install" //
895// End: //
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