source: src/main.cc@ 53d34343

ADT ast-experimental enum forall-pointer-decay jacob/cs343-translation new-ast-unique-expr pthread-emulation qualifiedEnum
Last change on this file since 53d34343 was 1f68d5d, checked in by Thierry Delisle <tdelisle@…>, 4 years ago

Changed signal handling to avoid incompatible pointer cast
  • Property mode set to 100644
File size: 27.2 KB
RevLine 
[b87a5ed]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//
[71f4e4f]7// main.cc --
[b87a5ed]8//
[3e96559]9// Author : Peter Buhr and Rob Schluntz
[b87a5ed]10// Created On : Fri May 15 23:12:02 2015
[77d601f]11// Last Modified By : Peter A. Buhr
12// Last Modified On : Sat Mar 6 15:49:00 2021
13// Update Count : 656
[b87a5ed]14//
15
[bf2438c]16#include <cxxabi.h> // for __cxa_demangle
17#include <execinfo.h> // for backtrace, backtrace_symbols
18#include <getopt.h> // for no_argument, optind, geto...
[08fc48f]19#include <cassert> // for assertf
[bf2438c]20#include <cstdio> // for fopen, FILE, fclose, stdin
21#include <cstdlib> // for exit, free, abort, EXIT_F...
[bffcd66]22#include <csignal> // for signal, SIGABRT, SIGSEGV
[bf2438c]23#include <cstring> // for index
[be9288a]24#include <fstream> // for ofstream
[bf2438c]25#include <iostream> // for operator<<, basic_ostream
[62ce290]26#include <iomanip>
[bf2438c]27#include <iterator> // for back_inserter
28#include <list> // for list
[08fc48f]29#include <string> // for char_traits, operator<<
[e6955b1]30
[bffcd66]31using namespace std;
32
[9ea38de]33#include "AST/Convert.hpp"
[7f38b67a]34#include "CompilationState.h"
[bf2438c]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
[aff7e86]39#include "CodeGen/LinkOnce.h" // for translateLinkOnce
[bf2438c]40#include "CodeTools/DeclStats.h" // for printDeclStats
[3b3491b6]41#include "CodeTools/ResolvProtoDump.h" // for dumpAsResolvProto
[bf2438c]42#include "CodeTools/TrackLoc.h" // for fillLocations
[f57faf6f]43#include "Common/CodeLocationTools.hpp" // for forceFillCodeLocations
[bf2438c]44#include "Common/CompilerError.h" // for CompilerError
[7abee38]45#include "Common/Stats.h"
[cbbd5b48]46#include "Common/PassVisitor.h"
[bf2438c]47#include "Common/SemanticError.h" // for SemanticError
48#include "Common/UnimplementedError.h" // for UnimplementedError
49#include "Common/utility.h" // for deleteAll, filter, printAll
[9f5ecf5]50#include "Concurrency/Waitfor.h" // for generateWaitfor
[bf2438c]51#include "ControlStruct/ExceptTranslate.h" // for translateEHM
52#include "ControlStruct/Mutate.h" // for mutate
53#include "GenPoly/Box.h" // for box
54#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
55#include "GenPoly/Lvalue.h" // for convertLvalue
56#include "GenPoly/Specialize.h" // for convertSpecializations
57#include "InitTweak/FixInit.h" // for fix
58#include "InitTweak/GenInit.h" // for genInit
59#include "MakeLibCfa.h" // for makeLibCfa
60#include "Parser/ParseNode.h" // for DeclarationNode, buildList
61#include "Parser/TypedefTable.h" // for TypedefTable
62#include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
63#include "ResolvExpr/Resolver.h" // for resolve
64#include "SymTab/Validate.h" // for validate
[bffcd66]65#include "SynTree/LinkageSpec.h" // for Spec, Cforall, Intrinsic
[bf2438c]66#include "SynTree/Declaration.h" // for Declaration
67#include "SynTree/Visitor.h" // for acceptAll
68#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
[a5f0529]69#include "Virtual/ExpandCasts.h" // for expandCasts
[51b73452]70
[4615ac8]71
[3e96559]72static void NewPass( const char * const name ) {
73 Stats::Heap::newPass( name );
[1cb7fab2]74 using namespace Stats::Counters;
[b8665e3]75 {
[3e96559]76 static auto group = build<CounterGroup>( "Pass Visitor" );
77 auto pass = build<CounterGroup>( name, group );
[b8665e3]78 pass_visitor_stats.depth = 0;
[3e96559]79 pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
80 pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
[b8665e3]81 }
82 {
[3e96559]83 static auto group = build<CounterGroup>( "Syntax Node" );
84 auto pass = build<CounterGroup>( name, group );
85 BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
[b8665e3]86 }
[675716e]87}
88
[3e96559]89#define PASS( name, pass ) \
[ecaeac6e]90 if ( errorp ) { cerr << name << endl; } \
[675716e]91 NewPass(name); \
[4f97937]92 Stats::Time::StartBlock(name); \
93 pass; \
94 Stats::Time::StopBlock();
[0da3e2c]95
[8b7ee09]96LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]97TypedefTable typedefTable;
[cbaee0d]98DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]99
[ef22ad6]100static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
[dee1f89]101
[bffcd66]102static string PreludeDirector = "";
[4dcaed2]103
[77d601f]104static void parse_cmdline( int argc, char * argv[] );
[8b7ee09]105static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]106static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
[e499381]107static void dump( ast::TranslationUnit && transUnit, ostream & out = cout );
[e6955b1]108
[0afffee]109static void backtrace( int start ) { // skip first N stack frames
[74330e7]110 enum { Frames = 50, }; // maximum number of stack frames
[e6955b1]111 void * array[Frames];
[74330e7]112 size_t size = ::backtrace( array, Frames );
[0afffee]113 char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
114
115 *index( messages[0], '(' ) = '\0'; // find executable name
116 cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]117
[b542bfb]118 // skip last 2 stack frames after main
[74330e7]119 for ( unsigned int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]120 char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
[7006ba5]121
122 for ( char * p = messages[i]; *p; p += 1 ) { // find parantheses and +offset
[0afffee]123 if ( *p == '(' ) {
[46f6134]124 mangled_name = p;
[0afffee]125 } else if ( *p == '+' ) {
[e6955b1]126 offset_begin = p;
[0afffee]127 } else if ( *p == ')' ) {
[e6955b1]128 offset_end = p;
129 break;
130 } // if
131 } // for
132
133 // if line contains symbol, attempt to demangle
[b542bfb]134 int frameNo = i - start;
[e6955b1]135 if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]136 *mangled_name++ = '\0'; // delimit strings
[e6955b1]137 *offset_begin++ = '\0';
138 *offset_end++ = '\0';
139
[0afffee]140 int status;
[e6955b1]141 char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]142 // bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]143 if ( status == 0 ) { // demangling successful ?
[b542bfb]144 cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]145 << real_name << "+" << offset_begin << offset_end << endl;
146 } else { // otherwise, output mangled name
[b542bfb]147 cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]148 << mangled_name << "(/*unknown*/)+" << offset_begin << offset_end << endl;
[e6955b1]149 } // if
[0afffee]150
[e6955b1]151 free( real_name );
152 } else { // otherwise, print the whole line
[b542bfb]153 cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]154 } // if
155 } // for
[b542bfb]156
[e6955b1]157 free( messages );
[b542bfb]158} // backtrace
159
[bffcd66]160#define SIGPARMS int sig __attribute__(( unused )), siginfo_t * sfp __attribute__(( unused )), ucontext_t * cxt __attribute__(( unused ))
161
[1f68d5d]162static void _Signal(struct sigaction & act, int sig, int flags ) {
[bffcd66]163 act.sa_flags = flags;
164
165 if ( sigaction( sig, &act, nullptr ) == -1 ) {
[77d601f]166 cerr << "*cfa-cpp compilation error* problem installing signal handler, error(" << errno << ") " << strerror( errno ) << endl;
[bffcd66]167 _exit( EXIT_FAILURE );
168 } // if
[1f68d5d]169}
170
171static void Signal( int sig, void (* handler)(SIGPARMS), int flags ) {
172 struct sigaction act;
173 act.sa_sigaction = (void (*)(int, siginfo_t *, void *))handler;
174 _Signal(act, sig, flags);
175} // Signal
176
177static void Signal( int sig, void (* handler)(int), int flags ) {
178 struct sigaction act;
179 act.sa_handler = handler;
180 _Signal(act, sig, flags);
[bffcd66]181} // Signal
182
183static void sigSegvBusHandler( SIGPARMS ) {
184 if ( sfp->si_addr == nullptr ) {
185 cerr << "Null pointer (nullptr) dereference." << endl;
186 } else {
187 cerr << (sig == SIGSEGV ? "Segment fault" : "Bus error") << " at memory location " << sfp->si_addr << "." << endl
188 << "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;
189 } // if
[b542bfb]190 backtrace( 2 ); // skip first 2 stack frames
[3e96559]191 abort(); // cause core dump for debugging
[e6955b1]192} // sigSegvBusHandler
[0da3e2c]193
[74330e7]194static void sigFpeHandler( SIGPARMS ) {
195 const char * msg;
196
197 switch ( sfp->si_code ) {
198 case FPE_INTDIV: case FPE_FLTDIV: msg = "divide by zero"; break;
199 case FPE_FLTOVF: msg = "overflow"; break;
200 case FPE_FLTUND: msg = "underflow"; break;
201 case FPE_FLTRES: msg = "inexact result"; break;
202 case FPE_FLTINV: msg = "invalid operation"; break;
203 default: msg = "unknown";
204 } // choose
205 cerr << "Computation error " << msg << " at location " << sfp->si_addr << endl
206 << "Possible cause is constant-expression evaluation invalid." << endl;
207 backtrace( 2 ); // skip first 2 stack frames
208 abort(); // cause core dump for debugging
209} // sigFpeHandler
210
[bffcd66]211static void sigAbortHandler( SIGPARMS ) {
[b542bfb]212 backtrace( 6 ); // skip first 6 stack frames
[1f68d5d]213 Signal( SIGABRT, SIG_DFL, SA_SIGINFO ); // reset default signal handler
[9be45a2]214 raise( SIGABRT ); // reraise SIGABRT
[b542bfb]215} // sigAbortHandler
216
[cbaee0d]217int main( int argc, char * argv[] ) {
[3b8e52c]218 FILE * input; // use FILE rather than istream because yyin is FILE
[d08beee]219 ostream * output = & cout;
[e6955b1]220 list< Declaration * > translationUnit;
221
[bffcd66]222 Signal( SIGSEGV, sigSegvBusHandler, SA_SIGINFO );
223 Signal( SIGBUS, sigSegvBusHandler, SA_SIGINFO );
[74330e7]224 Signal( SIGFPE, sigFpeHandler, SA_SIGINFO );
[bffcd66]225 Signal( SIGABRT, sigAbortHandler, SA_SIGINFO );
[b87a5ed]226
[bffcd66]227 // cout << "main" << endl;
[44bca7f]228 // for ( int i = 0; i < argc; i += 1 ) {
[bffcd66]229 // cout << '\t' << argv[i] << endl;
[44bca7f]230 // } // for
231
[e0bd0f9]232 parse_cmdline( argc, argv ); // process command-line arguments
[13de47bc]233 CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]234
[ef22ad6]235 if ( waiting_for_gdb ) {
[bffcd66]236 cerr << "Waiting for gdb" << endl;
237 cerr << "run :" << endl;
238 cerr << " gdb attach " << getpid() << endl;
[dee1f89]239 raise(SIGSTOP);
[ef22ad6]240 } // if
[dee1f89]241
[b87a5ed]242 try {
[81419b5]243 // choose to read the program from a file or stdin
[3b8e52c]244 if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]245 input = fopen( argv[ optind ], "r" );
[e0bd0f9]246 assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
[b87a5ed]247 optind += 1;
[3b8e52c]248 } else { // no input file name
[b87a5ed]249 input = stdin;
250 } // if
251
[79eaeb7]252 Stats::Time::StartGlobal();
[3c0d4cd]253 NewPass("Parse");
254 Stats::Time::StartBlock("Parse");
[675716e]255
[159c62e]256 // read in the builtins, extras, and the prelude
[de62360d]257 if ( ! nopreludep ) { // include gcc builtins
[faf8857]258 // -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[807ce84]259
[37fe352]260 assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
[4dcaed2]261
[807ce84]262 // Read to gcc builtins, if not generating the cfa library
[37fe352]263 FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
[6ce3ae9]264 assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
265 parse( gcc_builtins, LinkageSpec::Compiler );
[81419b5]266
[159c62e]267 // read the extra prelude in, if not generating the cfa library
[37fe352]268 FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
[3b8e52c]269 assertf( extras, "cannot open extras.cf\n" );
[f0994a1]270 parse( extras, LinkageSpec::BuiltinC );
[159c62e]271
[81419b5]272 if ( ! libcfap ) {
[faf8857]273 // read the prelude in, if not generating the cfa library
[e523b07]274 FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
275 assertf( prelude, "cannot open prelude.cfa\n" );
[35304009]276 parse( prelude, LinkageSpec::Intrinsic );
[fa4805f]277
278 // Read to cfa builtins, if not generating the cfa library
[37fe352]279 FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
[fa4805f]280 assertf( builtins, "cannot open builtins.cf\n" );
[54d714e]281 parse( builtins, LinkageSpec::BuiltinCFA );
[b87a5ed]282 } // if
283 } // if
[81419b5]284
[926af74]285 parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]286
[b87a5ed]287 if ( parsep ) {
[e6955b1]288 parseTree->printList( cout );
[0da3e2c]289 delete parseTree;
[3e96559]290 return EXIT_SUCCESS;
[b87a5ed]291 } // if
292
[0da3e2c]293 buildList( parseTree, translationUnit );
294 delete parseTree;
[cbaee0d]295 parseTree = nullptr;
[b87a5ed]296
297 if ( astp ) {
[1ab4ce2]298 dump( translationUnit );
[3e96559]299 return EXIT_SUCCESS;
[b87a5ed]300 } // if
301
[036dd5f]302 // Temporary: fill locations after parsing so that every node has a location, for early error messages.
303 // Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
304 // works okay for now.
305 CodeTools::fillLocations( translationUnit );
[3c0d4cd]306 Stats::Time::StopBlock();
[036dd5f]307
[839ccbb]308 // add the assignment statement after the initialization of a type parameter
[675716e]309 PASS( "Validate", SymTab::validate( translationUnit, symtabp ) );
[81419b5]310 if ( symtabp ) {
[46f6134]311 deleteAll( translationUnit );
[3e96559]312 return EXIT_SUCCESS;
[b87a5ed]313 } // if
314
[81419b5]315 if ( expraltp ) {
[bff09c8]316 PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
[81419b5]317 acceptAll( translationUnit, printer );
[3e96559]318 return EXIT_SUCCESS;
[b87a5ed]319 } // if
320
321 if ( validp ) {
[1ab4ce2]322 dump( translationUnit );
[3e96559]323 return EXIT_SUCCESS;
[b87a5ed]324 } // if
325
[046a890]326 PASS( "Translate Throws", ControlStruct::translateThrows( translationUnit ) );
[675716e]327 PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
328 PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
329 PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
330 PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
[81419b5]331 if ( libcfap ) {
332 // generate the bodies of cfa library functions
333 LibCfa::makeLibCfa( translationUnit );
[b87a5ed]334 } // if
335
[fa2de95]336 if ( declstatsp ) {
337 CodeTools::printDeclStats( translationUnit );
338 deleteAll( translationUnit );
[3e96559]339 return EXIT_SUCCESS;
340 } // if
[fa2de95]341
[de62360d]342 if ( bresolvep ) {
[1ab4ce2]343 dump( translationUnit );
[3e96559]344 return EXIT_SUCCESS;
[de62360d]345 } // if
346
[76b378d]347 CodeTools::fillLocations( translationUnit );
348
[3b3491b6]349 if ( resolvprotop ) {
350 CodeTools::dumpAsResolvProto( translationUnit );
[3e96559]351 return EXIT_SUCCESS;
352 } // if
[3b3491b6]353
[4a8f150]354 if( useNewAST ) {
[3746f777]355 if (Stats::Counters::enabled) {
356 ast::pass_visitor_stats.avg = Stats::Counters::build<Stats::Counters::AverageCounter<double>>("Average Depth - New");
357 ast::pass_visitor_stats.max = Stats::Counters::build<Stats::Counters::MaxCounter<double>>("Max depth - New");
358 }
[9ea38de]359 auto transUnit = convert( move( translationUnit ) );
360 PASS( "Resolve", ResolvExpr::resolve( transUnit ) );
[490fb92e]361 if ( exprp ) {
[e499381]362 dump( move( transUnit ) );
[490fb92e]363 return EXIT_SUCCESS;
364 } // if
365
[f57faf6f]366 forceFillCodeLocations( transUnit );
[4a8f150]367
[490fb92e]368 PASS( "Fix Init", InitTweak::fix(transUnit, buildingLibrary()));
[9ea38de]369 translationUnit = convert( move( transUnit ) );
[a77257be]370 } else {
371 PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
[490fb92e]372 if ( exprp ) {
373 dump( translationUnit );
374 return EXIT_SUCCESS;
375 }
[4615ac8]376
[490fb92e]377 PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
378 }
[81419b5]379
[71f4e4f]380 // fix ObjectDecl - replaces ConstructorInit nodes
[ca1c11f]381 if ( ctorinitp ) {
382 dump ( translationUnit );
[3e96559]383 return EXIT_SUCCESS;
[926af74]384 } // if
[71f4e4f]385
[675716e]386 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
[626dbc10]387
[046a890]388 PASS( "Translate Tries" , ControlStruct::translateTries( translationUnit ) );
[6edd210]389
[675716e]390 PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
[307a732]391
[675716e]392 PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
[9f5ecf5]393
[675716e]394 PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
[626dbc10]395
396 if ( tuplep ) {
397 dump( translationUnit );
[3e96559]398 return EXIT_SUCCESS;
399 } // if
[141b786]400
[675716e]401 PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
[a5f0529]402
[675716e]403 PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
[53d3ab4b]404 if ( genericsp ) {
405 dump( translationUnit );
[3e96559]406 return EXIT_SUCCESS;
407 } // if
[b4f8808]408
[675716e]409 PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
[53d3ab4b]410
[fea7ca7]411 if ( bboxp ) {
412 dump( translationUnit );
[3e96559]413 return EXIT_SUCCESS;
[926af74]414 } // if
[675716e]415 PASS( "Box", GenPoly::box( translationUnit ) );
[81419b5]416
[aff7e86]417 PASS( "Link-Once", CodeGen::translateLinkOnce( translationUnit ) );
418
419 // Code has been lowered to C, now we can start generation.
420
[8905f56]421 if ( bcodegenp ) {
422 dump( translationUnit );
[3e96559]423 return EXIT_SUCCESS;
424 } // if
[8905f56]425
[13de47bc]426 if ( optind < argc ) { // any commands after the flags and input file ? => output file name
427 output = new ofstream( argv[ optind ] );
428 } // if
[0270824]429
[7b15d7a]430 CodeTools::fillLocations( translationUnit );
[62ce290]431 PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
[0270824]432
[37fe352]433 CodeGen::FixMain::fix( *output, (PreludeDirector + "/bootloader.c").c_str() );
[e6955b1]434 if ( output != &cout ) {
[b87a5ed]435 delete output;
436 } // if
[77d601f]437 } catch ( SemanticErrorException & e ) {
[b87a5ed]438 if ( errorp ) {
[e6955b1]439 cerr << "---AST at error:---" << endl;
440 dump( translationUnit, cerr );
441 cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]442 } // if
[d55d7a6]443 e.print();
[e6955b1]444 if ( output != &cout ) {
[b87a5ed]445 delete output;
446 } // if
[3e96559]447 return EXIT_FAILURE;
[77d601f]448 } catch ( UnimplementedError & e ) {
[e6955b1]449 cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
450 if ( output != &cout ) {
[b87a5ed]451 delete output;
452 } // if
[3e96559]453 return EXIT_FAILURE;
[77d601f]454 } catch ( CompilerError & e ) {
[e6955b1]455 cerr << "Compiler Error: " << e.get_what() << endl;
[c850687]456 cerr << "(please report bugs to [REDACTED])" << endl;
[e6955b1]457 if ( output != &cout ) {
[b87a5ed]458 delete output;
459 } // if
[3e96559]460 return EXIT_FAILURE;
[77d601f]461 } catch ( std::bad_alloc & ) {
462 cerr << "*cfa-cpp compilation error* std::bad_alloc" << endl;
463 backtrace( 1 );
464 abort();
[3e96559]465 } catch ( ... ) {
[bffcd66]466 exception_ptr eptr = current_exception();
[4990812]467 try {
468 if (eptr) {
[bffcd66]469 rethrow_exception(eptr);
[3e96559]470 } else {
[77d601f]471 cerr << "*cfa-cpp compilation error* exception uncaught and unknown" << endl;
[3e96559]472 } // if
[77d601f]473 } catch( const exception & e ) {
474 cerr << "*cfa-cpp compilation error* uncaught exception \"" << e.what() << "\"\n";
[3e96559]475 } // try
476 return EXIT_FAILURE;
477 } // try
[b87a5ed]478
[39786813]479 deleteAll( translationUnit );
[1cb7fab2]480 Stats::print();
[3e96559]481 return EXIT_SUCCESS;
[d9a0e76]482} // main
[51b73452]483
[0da3e2c]484
[3e9de01]485static const char optstring[] = ":c:ghlLmNnpdOAP:S:twW:D:";
[3e96559]486
[62ce290]487enum { PreludeDir = 128 };
[3e96559]488static struct option long_opts[] = {
[1a69a90]489 { "colors", required_argument, nullptr, 'c' },
490 { "gdb", no_argument, nullptr, 'g' },
[3e96559]491 { "help", no_argument, nullptr, 'h' },
492 { "libcfa", no_argument, nullptr, 'l' },
[62ce290]493 { "linemarks", no_argument, nullptr, 'L' },
[3e96559]494 { "no-main", no_argument, 0, 'm' },
[62ce290]495 { "no-linemarks", no_argument, nullptr, 'N' },
496 { "no-prelude", no_argument, nullptr, 'n' },
[3e96559]497 { "prototypes", no_argument, nullptr, 'p' },
[7215000]498 { "deterministic-out", no_argument, nullptr, 'd' },
[a77257be]499 { "old-ast", no_argument, nullptr, 'O'},
500 { "new-ast", no_argument, nullptr, 'A'},
[62ce290]501 { "print", required_argument, nullptr, 'P' },
502 { "prelude-dir", required_argument, nullptr, PreludeDir },
503 { "statistics", required_argument, nullptr, 'S' },
[3e96559]504 { "tree", no_argument, nullptr, 't' },
505 { "", no_argument, nullptr, 0 }, // -w
506 { "", no_argument, nullptr, 0 }, // -W
507 { "", no_argument, nullptr, 0 }, // -D
508 { nullptr, 0, nullptr, 0 }
509}; // long_opts
510
511static const char * description[] = {
[aa88cb9a]512 "diagnostic color: never, always, auto", // -c
[3e9de01]513 "wait for gdb to attach", // -g
[aa88cb9a]514 "print translator help message", // -h
[3e9de01]515 "generate libcfa.c", // -l
516 "generate line marks", // -L
517 "do not replace main", // -m
518 "do not generate line marks", // -N
519 "do not read prelude", // -n
[aa88cb9a]520 "do not generate prelude prototypes => prelude not printed", // -p
[3e9de01]521 "only print deterministic output", // -d
522 "Use the old-ast", // -O
523 "Use the new-ast", // -A
524 "print", // -P
[62ce290]525 "<directory> prelude directory for debug/nodebug", // no flag
[aa88cb9a]526 "<option-list> enable profiling information: counters, heap, time, all, none", // -S
[3e9de01]527 "building cfa standard lib", // -t
528 "", // -w
529 "", // -W
530 "", // -D
[3e96559]531}; // description
532
[0c0f548]533static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
[62ce290]534
535static struct Printopts {
536 const char * name;
537 int & flag;
538 int val;
539 const char * descript;
540} printopts[] = {
[0e464f6]541 { "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
542 { "asterr", errorp, true, "print AST on error" },
[62ce290]543 { "declstats", declstatsp, true, "code property statistics" },
544 { "parse", yydebug, true, "yacc (parsing) debug information" },
545 { "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
546 { "rproto", resolvprotop, true, "resolver-proto instance" },
[0e464f6]547 { "rsteps", resolvep, true, "print resolver steps" },
548 { "tree", parsep, true, "print parse tree" },
549 // code dumps
550 { "ast", astp, true, "print AST after parsing" },
551 { "symevt", symtabp, true, "print AST after symbol table events" },
552 { "altexpr", expraltp, true, "print alternatives for expressions" },
553 { "astdecl", validp, true, "print AST after declaration validation pass" },
554 { "resolver", bresolvep, true, "print AST before resolver step" },
555 { "astexpr", exprp, true, "print AST after expression analysis" },
556 { "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
557 { "tuple", tuplep, true, "print AST after tuple expansion" },
558 { "astgen", genericsp, true, "print AST after instantiate generics" },
559 { "box", bboxp, true, "print AST before box step" },
560 { "codegen", bcodegenp, true, "print AST before code generation" },
[62ce290]561};
562enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
563
[77d601f]564static void usage( char * argv[] ) {
[e0bd0f9]565 cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
[3e96559]566 int i = 0, j = 1; // j skips starting colon
567 for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
568 if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
[62ce290]569 if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
570 cout << " -" << optstring[j] << ",";
571 } else { // no flag
572 j -= 1; // compensate
573 cout << " ";
574 } // if
575 cout << " --" << left << setw(12) << long_opts[i].name << " ";
576 if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
577 cout << "one of: " << endl;
578 for ( int i = 0; i < printoptsSize; i += 1 ) {
579 cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
580 } // for
581 } else {
582 cout << description[i] << endl;
583 } // if
[3e96559]584 } // if
[62ce290]585 if ( optstring[j + 1] == ':' ) j += 1;
[3e96559]586 } // for
587 if ( long_opts[i].name != 0 || optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
588 exit( EXIT_FAILURE );
589} // usage
590
[e0bd0f9]591static void parse_cmdline( int argc, char * argv[] ) {
[0da3e2c]592 opterr = 0; // (global) prevent getopt from printing error messages
593
[c5e5109]594 bool Wsuppress = false, Werror = false;
[0da3e2c]595 int c;
[3e96559]596 while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
[0da3e2c]597 switch ( c ) {
[1a69a90]598 case 'c': // diagnostic colors
599 if ( strcmp( optarg, "always" ) == 0 ) {
600 ErrorHelpers::colors = ErrorHelpers::Colors::Always;
601 } else if ( strcmp( optarg, "never" ) == 0 ) {
602 ErrorHelpers::colors = ErrorHelpers::Colors::Never;
603 } else if ( strcmp( optarg, "auto" ) == 0 ) {
604 ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
605 } // if
606 break;
[3e96559]607 case 'h': // help message
608 usage( argv ); // no return
[53d3ab4b]609 break;
[3e96559]610 case 'l': // generate libcfa.c
[0da3e2c]611 libcfap = true;
612 break;
[62ce290]613 case 'L': // generate line marks
[6de43b6]614 linemarks = true;
[c850687]615 break;
[3e96559]616 case 'm': // do not replace main
617 nomainp = true;
[0da3e2c]618 break;
[62ce290]619 case 'N': // do not generate line marks
[6de43b6]620 linemarks = false;
[c59bde6]621 break;
[62ce290]622 case 'n': // do not read prelude
[3e96559]623 nopreludep = true;
[0da3e2c]624 break;
[62ce290]625 case 'p': // generate prototypes for prelude functions
626 genproto = true;
[0da3e2c]627 break;
[7215000]628 case 'd': // don't print non-deterministic output
[a77257be]629 deterministic_output = true;
630 break;
631 case 'O': // don't print non-deterministic output
632 useNewAST = false;
633 break;
634 case 'A': // don't print non-deterministic output
635 useNewAST = true;
[7215000]636 break;
[62ce290]637 case 'P': // print options
638 for ( int i = 0;; i += 1 ) {
639 if ( i == printoptsSize ) {
640 cout << "Unknown --print option " << optarg << endl;
641 goto Default;
642 } // if
643 if ( strcmp( optarg, printopts[i].name ) == 0 ) {
644 printopts[i].flag = printopts[i].val;
645 break;
646 } // if
647 } // for
[0da3e2c]648 break;
[62ce290]649 case PreludeDir: // prelude directory for debug/nodebug, hidden
650 PreludeDirector = optarg;
[3b3491b6]651 break;
[3e96559]652 case 'S': // enable profiling information, argument comma separated list of names
653 Stats::parse_params( optarg );
[ebcc940]654 break;
[dee1f89]655 case 't': // building cfa stdlib
[0da3e2c]656 treep = true;
657 break;
[dee1f89]658 case 'g': // wait for gdb
659 waiting_for_gdb = true;
660 break;
[3e96559]661 case 'w': // suppress all warnings, hidden
[c5e5109]662 Wsuppress = true;
[44bca7f]663 break;
[3e96559]664 case 'W': // coordinate gcc -W with CFA, hidden
[44bca7f]665 if ( strcmp( optarg, "all" ) == 0 ) {
[68e9ace]666 SemanticWarning_EnableAll();
[44bca7f]667 } else if ( strcmp( optarg, "error" ) == 0 ) {
668 Werror = true;
669 } else {
670 char * warning = optarg;
671 Severity s;
672 if ( strncmp( optarg, "no-", 3 ) == 0 ) {
673 warning += 3;
674 s = Severity::Suppress;
675 } else {
676 s = Severity::Warn;
677 } // if
[68e9ace]678 SemanticWarning_Set( warning, s );
[44bca7f]679 } // if
680 break;
[3e96559]681 case 'D': // ignore -Dxxx, forwarded by cpp, hidden
[0da3e2c]682 break;
[3e96559]683 case '?': // unknown option
684 if ( optopt ) { // short option ?
685 cout << "Unknown option -" << (char)optopt << endl;
686 } else {
687 cout << "Unknown option " << argv[optind - 1] << endl;
688 } // if
689 goto Default;
690 case ':': // missing option
[ae47a23]691 if ( optopt ) { // short option ?
[3e96559]692 cout << "Missing option for -" << (char)optopt << endl;
[ae47a23]693 } else {
[3e96559]694 cout << "Missing option for " << argv[optind - 1] << endl;
[ae47a23]695 } // if
[3e96559]696 goto Default;
697 Default:
698 default:
699 usage( argv ); // no return
[0da3e2c]700 } // switch
701 } // while
[44bca7f]702
703 if ( Werror ) {
[68e9ace]704 SemanticWarning_WarningAsError();
[44bca7f]705 } // if
[c5e5109]706 if ( Wsuppress ) {
707 SemanticWarning_SuppressAll();
708 } // if
[44bca7f]709 // for ( const auto w : WarningFormats ) {
710 // cout << w.name << ' ' << (int)w.severity << endl;
711 // } // for
[0da3e2c]712} // parse_cmdline
713
[8b7ee09]714static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]715 extern int yyparse( void );
[cbaee0d]716 extern FILE * yyin;
[0da3e2c]717 extern int yylineno;
718
[8b7ee09]719 ::linkage = linkage; // set globals
[0da3e2c]720 yyin = input;
721 yylineno = 1;
722 int parseStatus = yyparse();
[81419b5]723
724 fclose( input );
[0da3e2c]725 if ( shouldExit || parseStatus != 0 ) {
726 exit( parseStatus );
[81419b5]727 } // if
[0da3e2c]728} // parse
[81419b5]729
[1ab4ce2]730static bool notPrelude( Declaration * decl ) {
731 return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]732} // notPrelude
[1ab4ce2]733
[e6955b1]734static void dump( list< Declaration * > & translationUnit, ostream & out ) {
735 list< Declaration * > decls;
[926af74]736
[62ce290]737 if ( genproto ) {
[e6955b1]738 filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]739 } else {
740 decls = translationUnit;
[926af74]741 } // if
[1ab4ce2]742
[e39241b]743 // depending on commandline options, either generate code or dump the AST
744 if ( codegenp ) {
[62ce290]745 CodeGen::generate( decls, out, ! genproto, prettycodegenp );
[e39241b]746 } else {
747 printAll( decls, out );
[3e96559]748 } // if
[7f5566b]749 deleteAll( translationUnit );
[0da3e2c]750} // dump
[1ab4ce2]751
[e499381]752static void dump( ast::TranslationUnit && transUnit, ostream & out ) {
753 std::list< Declaration * > translationUnit = convert( move( transUnit ) );
754 dump( translationUnit, out );
755}
756
[51b73452]757// Local Variables: //
[b87a5ed]758// tab-width: 4 //
759// mode: c++ //
760// compile-command: "make install" //
[51b73452]761// End: //
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