source: src/main.cc@ 21fe17f

ADT ast-experimental enum forall-pointer-decay pthread-emulation qualifiedEnum
Last change on this file since 21fe17f was b8ab91a, checked in by Andrew Beach <ajbeach@…>, 4 years ago

Fix Labels pass translated. This is fix label, mult-level exit and label generator.
  • Property mode set to 100644
File size: 28.5 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
[68fe946e]11// Last Modified By : Andrew Beach
[8e48fca4]12// Last Modified On : Fri Oct 29 16:34:00 2021
13// Update Count : 655
[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
[55cbff8]45#include "Common/DeclStats.hpp" // for printDeclStats
46#include "Common/ResolvProtoDump.hpp" // for dumpAsResolverProto
[7abee38]47#include "Common/Stats.h"
[cbbd5b48]48#include "Common/PassVisitor.h"
[bf2438c]49#include "Common/SemanticError.h" // for SemanticError
50#include "Common/UnimplementedError.h" // for UnimplementedError
51#include "Common/utility.h" // for deleteAll, filter, printAll
[9f5ecf5]52#include "Concurrency/Waitfor.h" // for generateWaitfor
[0c730d9]53#include "ControlStruct/ExceptDecl.h" // for translateExcept
[bf2438c]54#include "ControlStruct/ExceptTranslate.h" // for translateEHM
[b8ab91a]55#include "ControlStruct/FixLabels.hpp" // for fixLabels
[bf2438c]56#include "ControlStruct/Mutate.h" // for mutate
57#include "GenPoly/Box.h" // for box
58#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
59#include "GenPoly/Lvalue.h" // for convertLvalue
60#include "GenPoly/Specialize.h" // for convertSpecializations
61#include "InitTweak/FixInit.h" // for fix
62#include "InitTweak/GenInit.h" // for genInit
63#include "MakeLibCfa.h" // for makeLibCfa
64#include "Parser/ParseNode.h" // for DeclarationNode, buildList
65#include "Parser/TypedefTable.h" // for TypedefTable
66#include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
67#include "ResolvExpr/Resolver.h" // for resolve
68#include "SymTab/Validate.h" // for validate
[bffcd66]69#include "SynTree/LinkageSpec.h" // for Spec, Cforall, Intrinsic
[bf2438c]70#include "SynTree/Declaration.h" // for Declaration
71#include "SynTree/Visitor.h" // for acceptAll
72#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
[a5f0529]73#include "Virtual/ExpandCasts.h" // for expandCasts
[51b73452]74
[4615ac8]75
[3e96559]76static void NewPass( const char * const name ) {
77 Stats::Heap::newPass( name );
[1cb7fab2]78 using namespace Stats::Counters;
[b8665e3]79 {
[3e96559]80 static auto group = build<CounterGroup>( "Pass Visitor" );
81 auto pass = build<CounterGroup>( name, group );
[b8665e3]82 pass_visitor_stats.depth = 0;
[3e96559]83 pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
84 pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
[b8665e3]85 }
86 {
[3e96559]87 static auto group = build<CounterGroup>( "Syntax Node" );
88 auto pass = build<CounterGroup>( name, group );
89 BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
[b8665e3]90 }
[675716e]91}
92
[3e96559]93#define PASS( name, pass ) \
[ecaeac6e]94 if ( errorp ) { cerr << name << endl; } \
[675716e]95 NewPass(name); \
[4f97937]96 Stats::Time::StartBlock(name); \
97 pass; \
98 Stats::Time::StopBlock();
[0da3e2c]99
[8b7ee09]100LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]101TypedefTable typedefTable;
[cbaee0d]102DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]103
[ef22ad6]104static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
[dee1f89]105
[bffcd66]106static string PreludeDirector = "";
[4dcaed2]107
[77d601f]108static void parse_cmdline( int argc, char * argv[] );
[8b7ee09]109static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]110static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
[e499381]111static void dump( ast::TranslationUnit && transUnit, ostream & out = cout );
[e6955b1]112
[0afffee]113static void backtrace( int start ) { // skip first N stack frames
[74330e7]114 enum { Frames = 50, }; // maximum number of stack frames
[e6955b1]115 void * array[Frames];
[74330e7]116 size_t size = ::backtrace( array, Frames );
[0afffee]117 char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
118
119 *index( messages[0], '(' ) = '\0'; // find executable name
120 cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]121
[b542bfb]122 // skip last 2 stack frames after main
[74330e7]123 for ( unsigned int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]124 char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
[7006ba5]125
126 for ( char * p = messages[i]; *p; p += 1 ) { // find parantheses and +offset
[0afffee]127 if ( *p == '(' ) {
[46f6134]128 mangled_name = p;
[0afffee]129 } else if ( *p == '+' ) {
[e6955b1]130 offset_begin = p;
[0afffee]131 } else if ( *p == ')' ) {
[e6955b1]132 offset_end = p;
133 break;
134 } // if
135 } // for
136
137 // if line contains symbol, attempt to demangle
[b542bfb]138 int frameNo = i - start;
[e6955b1]139 if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]140 *mangled_name++ = '\0'; // delimit strings
[e6955b1]141 *offset_begin++ = '\0';
142 *offset_end++ = '\0';
143
[0afffee]144 int status;
[e6955b1]145 char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]146 // bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]147 if ( status == 0 ) { // demangling successful ?
[b542bfb]148 cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]149 << real_name << "+" << offset_begin << offset_end << endl;
150 } else { // otherwise, output mangled name
[b542bfb]151 cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]152 << mangled_name << "(/*unknown*/)+" << offset_begin << offset_end << endl;
[e6955b1]153 } // if
[0afffee]154
[e6955b1]155 free( real_name );
156 } else { // otherwise, print the whole line
[b542bfb]157 cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]158 } // if
159 } // for
[b542bfb]160
[e6955b1]161 free( messages );
[b542bfb]162} // backtrace
163
[bffcd66]164#define SIGPARMS int sig __attribute__(( unused )), siginfo_t * sfp __attribute__(( unused )), ucontext_t * cxt __attribute__(( unused ))
165
[1f68d5d]166static void _Signal(struct sigaction & act, int sig, int flags ) {
[bffcd66]167 act.sa_flags = flags;
168
169 if ( sigaction( sig, &act, nullptr ) == -1 ) {
[77d601f]170 cerr << "*cfa-cpp compilation error* problem installing signal handler, error(" << errno << ") " << strerror( errno ) << endl;
[bffcd66]171 _exit( EXIT_FAILURE );
172 } // if
[1f68d5d]173}
174
175static void Signal( int sig, void (* handler)(SIGPARMS), int flags ) {
176 struct sigaction act;
177 act.sa_sigaction = (void (*)(int, siginfo_t *, void *))handler;
178 _Signal(act, sig, flags);
179} // Signal
180
181static void Signal( int sig, void (* handler)(int), int flags ) {
182 struct sigaction act;
183 act.sa_handler = handler;
184 _Signal(act, sig, flags);
[bffcd66]185} // Signal
186
187static void sigSegvBusHandler( SIGPARMS ) {
188 if ( sfp->si_addr == nullptr ) {
189 cerr << "Null pointer (nullptr) dereference." << endl;
190 } else {
191 cerr << (sig == SIGSEGV ? "Segment fault" : "Bus error") << " at memory location " << sfp->si_addr << "." << endl
192 << "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;
193 } // if
[b542bfb]194 backtrace( 2 ); // skip first 2 stack frames
[3e96559]195 abort(); // cause core dump for debugging
[e6955b1]196} // sigSegvBusHandler
[0da3e2c]197
[74330e7]198static void sigFpeHandler( SIGPARMS ) {
199 const char * msg;
200
201 switch ( sfp->si_code ) {
202 case FPE_INTDIV: case FPE_FLTDIV: msg = "divide by zero"; break;
203 case FPE_FLTOVF: msg = "overflow"; break;
204 case FPE_FLTUND: msg = "underflow"; break;
205 case FPE_FLTRES: msg = "inexact result"; break;
206 case FPE_FLTINV: msg = "invalid operation"; break;
207 default: msg = "unknown";
208 } // choose
209 cerr << "Computation error " << msg << " at location " << sfp->si_addr << endl
210 << "Possible cause is constant-expression evaluation invalid." << endl;
211 backtrace( 2 ); // skip first 2 stack frames
212 abort(); // cause core dump for debugging
213} // sigFpeHandler
214
[bffcd66]215static void sigAbortHandler( SIGPARMS ) {
[b542bfb]216 backtrace( 6 ); // skip first 6 stack frames
[1f68d5d]217 Signal( SIGABRT, SIG_DFL, SA_SIGINFO ); // reset default signal handler
[9be45a2]218 raise( SIGABRT ); // reraise SIGABRT
[b542bfb]219} // sigAbortHandler
220
[cbaee0d]221int main( int argc, char * argv[] ) {
[3b8e52c]222 FILE * input; // use FILE rather than istream because yyin is FILE
[d08beee]223 ostream * output = & cout;
[e6955b1]224 list< Declaration * > translationUnit;
225
[bffcd66]226 Signal( SIGSEGV, sigSegvBusHandler, SA_SIGINFO );
227 Signal( SIGBUS, sigSegvBusHandler, SA_SIGINFO );
[74330e7]228 Signal( SIGFPE, sigFpeHandler, SA_SIGINFO );
[bffcd66]229 Signal( SIGABRT, sigAbortHandler, SA_SIGINFO );
[b87a5ed]230
[bffcd66]231 // cout << "main" << endl;
[44bca7f]232 // for ( int i = 0; i < argc; i += 1 ) {
[bffcd66]233 // cout << '\t' << argv[i] << endl;
[44bca7f]234 // } // for
235
[e0bd0f9]236 parse_cmdline( argc, argv ); // process command-line arguments
[13de47bc]237 CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]238
[ef22ad6]239 if ( waiting_for_gdb ) {
[bffcd66]240 cerr << "Waiting for gdb" << endl;
241 cerr << "run :" << endl;
242 cerr << " gdb attach " << getpid() << endl;
[dee1f89]243 raise(SIGSTOP);
[ef22ad6]244 } // if
[dee1f89]245
[b87a5ed]246 try {
[81419b5]247 // choose to read the program from a file or stdin
[3b8e52c]248 if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]249 input = fopen( argv[ optind ], "r" );
[e0bd0f9]250 assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
[b87a5ed]251 optind += 1;
[3b8e52c]252 } else { // no input file name
[b87a5ed]253 input = stdin;
254 } // if
255
[79eaeb7]256 Stats::Time::StartGlobal();
[3c0d4cd]257 NewPass("Parse");
258 Stats::Time::StartBlock("Parse");
[675716e]259
[159c62e]260 // read in the builtins, extras, and the prelude
[de62360d]261 if ( ! nopreludep ) { // include gcc builtins
[faf8857]262 // -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[807ce84]263
[37fe352]264 assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
[4dcaed2]265
[807ce84]266 // Read to gcc builtins, if not generating the cfa library
[37fe352]267 FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
[6ce3ae9]268 assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
269 parse( gcc_builtins, LinkageSpec::Compiler );
[81419b5]270
[159c62e]271 // read the extra prelude in, if not generating the cfa library
[37fe352]272 FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
[3b8e52c]273 assertf( extras, "cannot open extras.cf\n" );
[f0994a1]274 parse( extras, LinkageSpec::BuiltinC );
[159c62e]275
[81419b5]276 if ( ! libcfap ) {
[faf8857]277 // read the prelude in, if not generating the cfa library
[e523b07]278 FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
279 assertf( prelude, "cannot open prelude.cfa\n" );
[35304009]280 parse( prelude, LinkageSpec::Intrinsic );
[fa4805f]281
282 // Read to cfa builtins, if not generating the cfa library
[37fe352]283 FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
[fa4805f]284 assertf( builtins, "cannot open builtins.cf\n" );
[54d714e]285 parse( builtins, LinkageSpec::BuiltinCFA );
[b87a5ed]286 } // if
287 } // if
[81419b5]288
[926af74]289 parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]290
[b87a5ed]291 if ( parsep ) {
[e6955b1]292 parseTree->printList( cout );
[0da3e2c]293 delete parseTree;
[3e96559]294 return EXIT_SUCCESS;
[b87a5ed]295 } // if
296
[0da3e2c]297 buildList( parseTree, translationUnit );
298 delete parseTree;
[cbaee0d]299 parseTree = nullptr;
[b87a5ed]300
301 if ( astp ) {
[1ab4ce2]302 dump( translationUnit );
[3e96559]303 return EXIT_SUCCESS;
[b87a5ed]304 } // if
305
[036dd5f]306 // Temporary: fill locations after parsing so that every node has a location, for early error messages.
307 // Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
308 // works okay for now.
309 CodeTools::fillLocations( translationUnit );
[3c0d4cd]310 Stats::Time::StopBlock();
[036dd5f]311
[0c730d9]312 PASS( "Translate Exception Declarations", ControlStruct::translateExcept( translationUnit ) );
[00da199]313 if ( exdeclp ) {
314 dump( translationUnit );
315 return EXIT_SUCCESS;
316 } // if
[0c730d9]317
[839ccbb]318 // add the assignment statement after the initialization of a type parameter
[675716e]319 PASS( "Validate", SymTab::validate( translationUnit, symtabp ) );
[81419b5]320 if ( symtabp ) {
[46f6134]321 deleteAll( translationUnit );
[3e96559]322 return EXIT_SUCCESS;
[b87a5ed]323 } // if
324
[81419b5]325 if ( expraltp ) {
[bff09c8]326 PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
[81419b5]327 acceptAll( translationUnit, printer );
[3e96559]328 return EXIT_SUCCESS;
[b87a5ed]329 } // if
330
331 if ( validp ) {
[1ab4ce2]332 dump( translationUnit );
[3e96559]333 return EXIT_SUCCESS;
[b87a5ed]334 } // if
335
[046a890]336 PASS( "Translate Throws", ControlStruct::translateThrows( translationUnit ) );
[9f5a19fa]337
[76b378d]338 CodeTools::fillLocations( translationUnit );
339
[4a8f150]340 if( useNewAST ) {
[3746f777]341 if (Stats::Counters::enabled) {
342 ast::pass_visitor_stats.avg = Stats::Counters::build<Stats::Counters::AverageCounter<double>>("Average Depth - New");
343 ast::pass_visitor_stats.max = Stats::Counters::build<Stats::Counters::MaxCounter<double>>("Max depth - New");
344 }
[9ea38de]345 auto transUnit = convert( move( translationUnit ) );
[9f5a19fa]346
[68fe946e]347 forceFillCodeLocations( transUnit );
348
[b8ab91a]349 PASS( "Fix Labels", ControlStruct::fixLabels( transUnit ) );
[0c577f7]350 PASS( "Fix Names", CodeGen::fixNames( transUnit ) );
[a36eb2d]351 PASS( "Gen Init", InitTweak::genInit( transUnit ) );
[9f5a19fa]352 PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( transUnit ) );
[68fe946e]353
[da6396f]354 if ( libcfap ) {
355 // Generate the bodies of cfa library functions.
356 LibCfa::makeLibCfa( transUnit );
357 } // if
[68fe946e]358
359 if ( declstatsp ) {
360 printDeclStats( transUnit );
361 return EXIT_SUCCESS;
362 } // if
363
364 if ( bresolvep ) {
365 dump( move( transUnit ) );
366 return EXIT_SUCCESS;
367 } // if
368
369 if ( resolvprotop ) {
[55cbff8]370 dumpAsResolverProto( transUnit );
[68fe946e]371 return EXIT_SUCCESS;
372 } // if
373
[9ea38de]374 PASS( "Resolve", ResolvExpr::resolve( transUnit ) );
[490fb92e]375 if ( exprp ) {
[e499381]376 dump( move( transUnit ) );
[490fb92e]377 return EXIT_SUCCESS;
378 } // if
379
[f57faf6f]380 forceFillCodeLocations( transUnit );
[4a8f150]381
[490fb92e]382 PASS( "Fix Init", InitTweak::fix(transUnit, buildingLibrary()));
[da6396f]383
[9ea38de]384 translationUnit = convert( move( transUnit ) );
[a77257be]385 } else {
[b8ab91a]386 PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
[0c577f7]387 PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
[a36eb2d]388 PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
[9f5a19fa]389 PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
390
[da6396f]391 if ( libcfap ) {
392 // Generate the bodies of cfa library functions.
393 LibCfa::makeLibCfa( translationUnit );
394 } // if
[68fe946e]395
396 if ( declstatsp ) {
397 CodeTools::printDeclStats( translationUnit );
398 deleteAll( translationUnit );
399 return EXIT_SUCCESS;
400 } // if
401
402 if ( bresolvep ) {
403 dump( translationUnit );
404 return EXIT_SUCCESS;
405 } // if
406
407 CodeTools::fillLocations( translationUnit );
408
409 if ( resolvprotop ) {
410 CodeTools::dumpAsResolvProto( translationUnit );
411 return EXIT_SUCCESS;
412 } // if
413
[a77257be]414 PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
[490fb92e]415 if ( exprp ) {
416 dump( translationUnit );
417 return EXIT_SUCCESS;
418 }
[4615ac8]419
[490fb92e]420 PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
421 }
[81419b5]422
[71f4e4f]423 // fix ObjectDecl - replaces ConstructorInit nodes
[ca1c11f]424 if ( ctorinitp ) {
425 dump ( translationUnit );
[3e96559]426 return EXIT_SUCCESS;
[926af74]427 } // if
[71f4e4f]428
[675716e]429 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]430
[046a890]431 PASS( "Translate Tries" , ControlStruct::translateTries( translationUnit ) );
[6edd210]432
[675716e]433 PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
[307a732]434
[675716e]435 PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
[9f5ecf5]436
[675716e]437 PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
[626dbc10]438
439 if ( tuplep ) {
440 dump( translationUnit );
[3e96559]441 return EXIT_SUCCESS;
442 } // if
[141b786]443
[675716e]444 PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
[a5f0529]445
[675716e]446 PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
[53d3ab4b]447 if ( genericsp ) {
448 dump( translationUnit );
[3e96559]449 return EXIT_SUCCESS;
450 } // if
[b4f8808]451
[675716e]452 PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
[53d3ab4b]453
[fea7ca7]454 if ( bboxp ) {
455 dump( translationUnit );
[3e96559]456 return EXIT_SUCCESS;
[926af74]457 } // if
[675716e]458 PASS( "Box", GenPoly::box( translationUnit ) );
[81419b5]459
[aff7e86]460 PASS( "Link-Once", CodeGen::translateLinkOnce( translationUnit ) );
461
462 // Code has been lowered to C, now we can start generation.
463
[8905f56]464 if ( bcodegenp ) {
465 dump( translationUnit );
[3e96559]466 return EXIT_SUCCESS;
467 } // if
[8905f56]468
[13de47bc]469 if ( optind < argc ) { // any commands after the flags and input file ? => output file name
470 output = new ofstream( argv[ optind ] );
471 } // if
[0270824]472
[7b15d7a]473 CodeTools::fillLocations( translationUnit );
[62ce290]474 PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
[0270824]475
[8e48fca4]476 CodeGen::FixMain::fix( translationUnit, *output,
477 (PreludeDirector + "/bootloader.c").c_str() );
[e6955b1]478 if ( output != &cout ) {
[b87a5ed]479 delete output;
480 } // if
[77d601f]481 } catch ( SemanticErrorException & e ) {
[b87a5ed]482 if ( errorp ) {
[e6955b1]483 cerr << "---AST at error:---" << endl;
484 dump( translationUnit, cerr );
485 cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]486 } // if
[d55d7a6]487 e.print();
[e6955b1]488 if ( output != &cout ) {
[b87a5ed]489 delete output;
490 } // if
[3e96559]491 return EXIT_FAILURE;
[77d601f]492 } catch ( UnimplementedError & e ) {
[e6955b1]493 cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
494 if ( output != &cout ) {
[b87a5ed]495 delete output;
496 } // if
[3e96559]497 return EXIT_FAILURE;
[77d601f]498 } catch ( CompilerError & e ) {
[e6955b1]499 cerr << "Compiler Error: " << e.get_what() << endl;
[c850687]500 cerr << "(please report bugs to [REDACTED])" << endl;
[e6955b1]501 if ( output != &cout ) {
[b87a5ed]502 delete output;
503 } // if
[3e96559]504 return EXIT_FAILURE;
[77d601f]505 } catch ( std::bad_alloc & ) {
506 cerr << "*cfa-cpp compilation error* std::bad_alloc" << endl;
507 backtrace( 1 );
508 abort();
[3e96559]509 } catch ( ... ) {
[bffcd66]510 exception_ptr eptr = current_exception();
[4990812]511 try {
512 if (eptr) {
[bffcd66]513 rethrow_exception(eptr);
[3e96559]514 } else {
[77d601f]515 cerr << "*cfa-cpp compilation error* exception uncaught and unknown" << endl;
[3e96559]516 } // if
[77d601f]517 } catch( const exception & e ) {
518 cerr << "*cfa-cpp compilation error* uncaught exception \"" << e.what() << "\"\n";
[3e96559]519 } // try
520 return EXIT_FAILURE;
521 } // try
[b87a5ed]522
[39786813]523 deleteAll( translationUnit );
[1cb7fab2]524 Stats::print();
[3e96559]525 return EXIT_SUCCESS;
[d9a0e76]526} // main
[51b73452]527
[0da3e2c]528
[3e9de01]529static const char optstring[] = ":c:ghlLmNnpdOAP:S:twW:D:";
[3e96559]530
[62ce290]531enum { PreludeDir = 128 };
[3e96559]532static struct option long_opts[] = {
[1a69a90]533 { "colors", required_argument, nullptr, 'c' },
534 { "gdb", no_argument, nullptr, 'g' },
[3e96559]535 { "help", no_argument, nullptr, 'h' },
536 { "libcfa", no_argument, nullptr, 'l' },
[62ce290]537 { "linemarks", no_argument, nullptr, 'L' },
[3e96559]538 { "no-main", no_argument, 0, 'm' },
[62ce290]539 { "no-linemarks", no_argument, nullptr, 'N' },
540 { "no-prelude", no_argument, nullptr, 'n' },
[3e96559]541 { "prototypes", no_argument, nullptr, 'p' },
[7215000]542 { "deterministic-out", no_argument, nullptr, 'd' },
[a77257be]543 { "old-ast", no_argument, nullptr, 'O'},
544 { "new-ast", no_argument, nullptr, 'A'},
[62ce290]545 { "print", required_argument, nullptr, 'P' },
546 { "prelude-dir", required_argument, nullptr, PreludeDir },
547 { "statistics", required_argument, nullptr, 'S' },
[3e96559]548 { "tree", no_argument, nullptr, 't' },
549 { "", no_argument, nullptr, 0 }, // -w
550 { "", no_argument, nullptr, 0 }, // -W
551 { "", no_argument, nullptr, 0 }, // -D
552 { nullptr, 0, nullptr, 0 }
553}; // long_opts
554
555static const char * description[] = {
[aa88cb9a]556 "diagnostic color: never, always, auto", // -c
[3e9de01]557 "wait for gdb to attach", // -g
[aa88cb9a]558 "print translator help message", // -h
[3e9de01]559 "generate libcfa.c", // -l
560 "generate line marks", // -L
561 "do not replace main", // -m
562 "do not generate line marks", // -N
563 "do not read prelude", // -n
[aa88cb9a]564 "do not generate prelude prototypes => prelude not printed", // -p
[3e9de01]565 "only print deterministic output", // -d
566 "Use the old-ast", // -O
567 "Use the new-ast", // -A
568 "print", // -P
[62ce290]569 "<directory> prelude directory for debug/nodebug", // no flag
[aa88cb9a]570 "<option-list> enable profiling information: counters, heap, time, all, none", // -S
[3e9de01]571 "building cfa standard lib", // -t
572 "", // -w
573 "", // -W
574 "", // -D
[3e96559]575}; // description
576
[0c0f548]577static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
[62ce290]578
579static struct Printopts {
580 const char * name;
581 int & flag;
582 int val;
583 const char * descript;
584} printopts[] = {
[0e464f6]585 { "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
586 { "asterr", errorp, true, "print AST on error" },
[62ce290]587 { "declstats", declstatsp, true, "code property statistics" },
588 { "parse", yydebug, true, "yacc (parsing) debug information" },
589 { "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
590 { "rproto", resolvprotop, true, "resolver-proto instance" },
[0e464f6]591 { "rsteps", resolvep, true, "print resolver steps" },
592 { "tree", parsep, true, "print parse tree" },
593 // code dumps
594 { "ast", astp, true, "print AST after parsing" },
[00da199]595 { "exdecl", exdeclp, true, "print AST after translating exception decls" },
[0e464f6]596 { "symevt", symtabp, true, "print AST after symbol table events" },
597 { "altexpr", expraltp, true, "print alternatives for expressions" },
598 { "astdecl", validp, true, "print AST after declaration validation pass" },
599 { "resolver", bresolvep, true, "print AST before resolver step" },
600 { "astexpr", exprp, true, "print AST after expression analysis" },
601 { "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
602 { "tuple", tuplep, true, "print AST after tuple expansion" },
603 { "astgen", genericsp, true, "print AST after instantiate generics" },
604 { "box", bboxp, true, "print AST before box step" },
605 { "codegen", bcodegenp, true, "print AST before code generation" },
[62ce290]606};
607enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
608
[77d601f]609static void usage( char * argv[] ) {
[e0bd0f9]610 cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
[3e96559]611 int i = 0, j = 1; // j skips starting colon
612 for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
613 if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
[62ce290]614 if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
615 cout << " -" << optstring[j] << ",";
616 } else { // no flag
617 j -= 1; // compensate
618 cout << " ";
619 } // if
620 cout << " --" << left << setw(12) << long_opts[i].name << " ";
621 if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
622 cout << "one of: " << endl;
623 for ( int i = 0; i < printoptsSize; i += 1 ) {
624 cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
625 } // for
626 } else {
627 cout << description[i] << endl;
628 } // if
[3e96559]629 } // if
[62ce290]630 if ( optstring[j + 1] == ':' ) j += 1;
[3e96559]631 } // for
632 if ( long_opts[i].name != 0 || optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
633 exit( EXIT_FAILURE );
634} // usage
635
[e0bd0f9]636static void parse_cmdline( int argc, char * argv[] ) {
[0da3e2c]637 opterr = 0; // (global) prevent getopt from printing error messages
638
[c5e5109]639 bool Wsuppress = false, Werror = false;
[0da3e2c]640 int c;
[3e96559]641 while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
[0da3e2c]642 switch ( c ) {
[1a69a90]643 case 'c': // diagnostic colors
644 if ( strcmp( optarg, "always" ) == 0 ) {
645 ErrorHelpers::colors = ErrorHelpers::Colors::Always;
646 } else if ( strcmp( optarg, "never" ) == 0 ) {
647 ErrorHelpers::colors = ErrorHelpers::Colors::Never;
648 } else if ( strcmp( optarg, "auto" ) == 0 ) {
649 ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
650 } // if
651 break;
[3e96559]652 case 'h': // help message
653 usage( argv ); // no return
[53d3ab4b]654 break;
[3e96559]655 case 'l': // generate libcfa.c
[0da3e2c]656 libcfap = true;
657 break;
[62ce290]658 case 'L': // generate line marks
[6de43b6]659 linemarks = true;
[c850687]660 break;
[3e96559]661 case 'm': // do not replace main
662 nomainp = true;
[0da3e2c]663 break;
[62ce290]664 case 'N': // do not generate line marks
[6de43b6]665 linemarks = false;
[c59bde6]666 break;
[62ce290]667 case 'n': // do not read prelude
[3e96559]668 nopreludep = true;
[0da3e2c]669 break;
[62ce290]670 case 'p': // generate prototypes for prelude functions
671 genproto = true;
[0da3e2c]672 break;
[7215000]673 case 'd': // don't print non-deterministic output
[a77257be]674 deterministic_output = true;
675 break;
676 case 'O': // don't print non-deterministic output
677 useNewAST = false;
678 break;
679 case 'A': // don't print non-deterministic output
680 useNewAST = true;
[7215000]681 break;
[62ce290]682 case 'P': // print options
683 for ( int i = 0;; i += 1 ) {
684 if ( i == printoptsSize ) {
685 cout << "Unknown --print option " << optarg << endl;
686 goto Default;
687 } // if
688 if ( strcmp( optarg, printopts[i].name ) == 0 ) {
689 printopts[i].flag = printopts[i].val;
690 break;
691 } // if
692 } // for
[0da3e2c]693 break;
[62ce290]694 case PreludeDir: // prelude directory for debug/nodebug, hidden
695 PreludeDirector = optarg;
[3b3491b6]696 break;
[3e96559]697 case 'S': // enable profiling information, argument comma separated list of names
698 Stats::parse_params( optarg );
[ebcc940]699 break;
[dee1f89]700 case 't': // building cfa stdlib
[0da3e2c]701 treep = true;
702 break;
[dee1f89]703 case 'g': // wait for gdb
704 waiting_for_gdb = true;
705 break;
[3e96559]706 case 'w': // suppress all warnings, hidden
[c5e5109]707 Wsuppress = true;
[44bca7f]708 break;
[3e96559]709 case 'W': // coordinate gcc -W with CFA, hidden
[44bca7f]710 if ( strcmp( optarg, "all" ) == 0 ) {
[68e9ace]711 SemanticWarning_EnableAll();
[44bca7f]712 } else if ( strcmp( optarg, "error" ) == 0 ) {
713 Werror = true;
714 } else {
715 char * warning = optarg;
716 Severity s;
717 if ( strncmp( optarg, "no-", 3 ) == 0 ) {
718 warning += 3;
719 s = Severity::Suppress;
720 } else {
721 s = Severity::Warn;
722 } // if
[68e9ace]723 SemanticWarning_Set( warning, s );
[44bca7f]724 } // if
725 break;
[3e96559]726 case 'D': // ignore -Dxxx, forwarded by cpp, hidden
[0da3e2c]727 break;
[3e96559]728 case '?': // unknown option
729 if ( optopt ) { // short option ?
730 cout << "Unknown option -" << (char)optopt << endl;
731 } else {
732 cout << "Unknown option " << argv[optind - 1] << endl;
733 } // if
734 goto Default;
735 case ':': // missing option
[ae47a23]736 if ( optopt ) { // short option ?
[3e96559]737 cout << "Missing option for -" << (char)optopt << endl;
[ae47a23]738 } else {
[3e96559]739 cout << "Missing option for " << argv[optind - 1] << endl;
[ae47a23]740 } // if
[3e96559]741 goto Default;
742 Default:
743 default:
744 usage( argv ); // no return
[0da3e2c]745 } // switch
746 } // while
[44bca7f]747
748 if ( Werror ) {
[68e9ace]749 SemanticWarning_WarningAsError();
[44bca7f]750 } // if
[c5e5109]751 if ( Wsuppress ) {
752 SemanticWarning_SuppressAll();
753 } // if
[44bca7f]754 // for ( const auto w : WarningFormats ) {
755 // cout << w.name << ' ' << (int)w.severity << endl;
756 // } // for
[0da3e2c]757} // parse_cmdline
758
[8b7ee09]759static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]760 extern int yyparse( void );
[cbaee0d]761 extern FILE * yyin;
[0da3e2c]762 extern int yylineno;
763
[8b7ee09]764 ::linkage = linkage; // set globals
[0da3e2c]765 yyin = input;
766 yylineno = 1;
767 int parseStatus = yyparse();
[81419b5]768
769 fclose( input );
[0da3e2c]770 if ( shouldExit || parseStatus != 0 ) {
771 exit( parseStatus );
[81419b5]772 } // if
[0da3e2c]773} // parse
[81419b5]774
[1ab4ce2]775static bool notPrelude( Declaration * decl ) {
776 return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]777} // notPrelude
[1ab4ce2]778
[e6955b1]779static void dump( list< Declaration * > & translationUnit, ostream & out ) {
780 list< Declaration * > decls;
[926af74]781
[62ce290]782 if ( genproto ) {
[e6955b1]783 filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]784 } else {
785 decls = translationUnit;
[926af74]786 } // if
[1ab4ce2]787
[e39241b]788 // depending on commandline options, either generate code or dump the AST
789 if ( codegenp ) {
[62ce290]790 CodeGen::generate( decls, out, ! genproto, prettycodegenp );
[e39241b]791 } else {
792 printAll( decls, out );
[3e96559]793 } // if
[7f5566b]794 deleteAll( translationUnit );
[0da3e2c]795} // dump
[1ab4ce2]796
[e499381]797static void dump( ast::TranslationUnit && transUnit, ostream & out ) {
798 std::list< Declaration * > translationUnit = convert( move( transUnit ) );
799 dump( translationUnit, out );
800}
801
[51b73452]802// Local Variables: //
[b87a5ed]803// tab-width: 4 //
804// mode: c++ //
805// compile-command: "make install" //
[51b73452]806// End: //
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