source: src/main.cc@ 375fb46

ADT arm-eh ast-experimental enum forall-pointer-decay jacob/cs343-translation new-ast-unique-expr pthread-emulation qualifiedEnum
Last change on this file since 375fb46 was aff7e86, checked in by Andrew Beach <ajbeach@…>, 4 years ago

Added a new attribute 'cfa_linkonce'.
  • Property mode set to 100644
File size: 27.0 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
[77d601f]162static void Signal( int sig, void (* handler)(SIGPARMS), int flags ) {
[bffcd66]163 struct sigaction act;
164
165 act.sa_sigaction = (void (*)(int, siginfo_t *, void *))handler;
166 act.sa_flags = flags;
167
168 if ( sigaction( sig, &act, nullptr ) == -1 ) {
[77d601f]169 cerr << "*cfa-cpp compilation error* problem installing signal handler, error(" << errno << ") " << strerror( errno ) << endl;
[bffcd66]170 _exit( EXIT_FAILURE );
171 } // if
172} // Signal
173
174static void sigSegvBusHandler( SIGPARMS ) {
175 if ( sfp->si_addr == nullptr ) {
176 cerr << "Null pointer (nullptr) dereference." << endl;
177 } else {
178 cerr << (sig == SIGSEGV ? "Segment fault" : "Bus error") << " at memory location " << sfp->si_addr << "." << endl
179 << "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;
180 } // if
[b542bfb]181 backtrace( 2 ); // skip first 2 stack frames
[3e96559]182 abort(); // cause core dump for debugging
[e6955b1]183} // sigSegvBusHandler
[0da3e2c]184
[74330e7]185static void sigFpeHandler( SIGPARMS ) {
186 const char * msg;
187
188 switch ( sfp->si_code ) {
189 case FPE_INTDIV: case FPE_FLTDIV: msg = "divide by zero"; break;
190 case FPE_FLTOVF: msg = "overflow"; break;
191 case FPE_FLTUND: msg = "underflow"; break;
192 case FPE_FLTRES: msg = "inexact result"; break;
193 case FPE_FLTINV: msg = "invalid operation"; break;
194 default: msg = "unknown";
195 } // choose
196 cerr << "Computation error " << msg << " at location " << sfp->si_addr << endl
197 << "Possible cause is constant-expression evaluation invalid." << endl;
198 backtrace( 2 ); // skip first 2 stack frames
199 abort(); // cause core dump for debugging
200} // sigFpeHandler
201
[bffcd66]202static void sigAbortHandler( SIGPARMS ) {
[b542bfb]203 backtrace( 6 ); // skip first 6 stack frames
[bffcd66]204 Signal( SIGABRT, (void (*)(SIGPARMS))SIG_DFL, SA_SIGINFO ); // reset default signal handler
[9be45a2]205 raise( SIGABRT ); // reraise SIGABRT
[b542bfb]206} // sigAbortHandler
207
[cbaee0d]208int main( int argc, char * argv[] ) {
[3b8e52c]209 FILE * input; // use FILE rather than istream because yyin is FILE
[d08beee]210 ostream * output = & cout;
[e6955b1]211 list< Declaration * > translationUnit;
212
[bffcd66]213 Signal( SIGSEGV, sigSegvBusHandler, SA_SIGINFO );
214 Signal( SIGBUS, sigSegvBusHandler, SA_SIGINFO );
[74330e7]215 Signal( SIGFPE, sigFpeHandler, SA_SIGINFO );
[bffcd66]216 Signal( SIGABRT, sigAbortHandler, SA_SIGINFO );
[b87a5ed]217
[bffcd66]218 // cout << "main" << endl;
[44bca7f]219 // for ( int i = 0; i < argc; i += 1 ) {
[bffcd66]220 // cout << '\t' << argv[i] << endl;
[44bca7f]221 // } // for
222
[e0bd0f9]223 parse_cmdline( argc, argv ); // process command-line arguments
[13de47bc]224 CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]225
[ef22ad6]226 if ( waiting_for_gdb ) {
[bffcd66]227 cerr << "Waiting for gdb" << endl;
228 cerr << "run :" << endl;
229 cerr << " gdb attach " << getpid() << endl;
[dee1f89]230 raise(SIGSTOP);
[ef22ad6]231 } // if
[dee1f89]232
[b87a5ed]233 try {
[81419b5]234 // choose to read the program from a file or stdin
[3b8e52c]235 if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]236 input = fopen( argv[ optind ], "r" );
[e0bd0f9]237 assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
[b87a5ed]238 optind += 1;
[3b8e52c]239 } else { // no input file name
[b87a5ed]240 input = stdin;
241 } // if
242
[79eaeb7]243 Stats::Time::StartGlobal();
[3c0d4cd]244 NewPass("Parse");
245 Stats::Time::StartBlock("Parse");
[675716e]246
[159c62e]247 // read in the builtins, extras, and the prelude
[de62360d]248 if ( ! nopreludep ) { // include gcc builtins
[faf8857]249 // -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[807ce84]250
[37fe352]251 assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
[4dcaed2]252
[807ce84]253 // Read to gcc builtins, if not generating the cfa library
[37fe352]254 FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
[6ce3ae9]255 assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
256 parse( gcc_builtins, LinkageSpec::Compiler );
[81419b5]257
[159c62e]258 // read the extra prelude in, if not generating the cfa library
[37fe352]259 FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
[3b8e52c]260 assertf( extras, "cannot open extras.cf\n" );
[f0994a1]261 parse( extras, LinkageSpec::BuiltinC );
[159c62e]262
[81419b5]263 if ( ! libcfap ) {
[faf8857]264 // read the prelude in, if not generating the cfa library
[e523b07]265 FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
266 assertf( prelude, "cannot open prelude.cfa\n" );
[35304009]267 parse( prelude, LinkageSpec::Intrinsic );
[fa4805f]268
269 // Read to cfa builtins, if not generating the cfa library
[37fe352]270 FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
[fa4805f]271 assertf( builtins, "cannot open builtins.cf\n" );
[54d714e]272 parse( builtins, LinkageSpec::BuiltinCFA );
[b87a5ed]273 } // if
274 } // if
[81419b5]275
[926af74]276 parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]277
[b87a5ed]278 if ( parsep ) {
[e6955b1]279 parseTree->printList( cout );
[0da3e2c]280 delete parseTree;
[3e96559]281 return EXIT_SUCCESS;
[b87a5ed]282 } // if
283
[0da3e2c]284 buildList( parseTree, translationUnit );
285 delete parseTree;
[cbaee0d]286 parseTree = nullptr;
[b87a5ed]287
288 if ( astp ) {
[1ab4ce2]289 dump( translationUnit );
[3e96559]290 return EXIT_SUCCESS;
[b87a5ed]291 } // if
292
[036dd5f]293 // Temporary: fill locations after parsing so that every node has a location, for early error messages.
294 // Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
295 // works okay for now.
296 CodeTools::fillLocations( translationUnit );
[3c0d4cd]297 Stats::Time::StopBlock();
[036dd5f]298
[839ccbb]299 // add the assignment statement after the initialization of a type parameter
[675716e]300 PASS( "Validate", SymTab::validate( translationUnit, symtabp ) );
[81419b5]301 if ( symtabp ) {
[46f6134]302 deleteAll( translationUnit );
[3e96559]303 return EXIT_SUCCESS;
[b87a5ed]304 } // if
305
[81419b5]306 if ( expraltp ) {
[bff09c8]307 PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
[81419b5]308 acceptAll( translationUnit, printer );
[3e96559]309 return EXIT_SUCCESS;
[b87a5ed]310 } // if
311
312 if ( validp ) {
[1ab4ce2]313 dump( translationUnit );
[3e96559]314 return EXIT_SUCCESS;
[b87a5ed]315 } // if
316
[046a890]317 PASS( "Translate Throws", ControlStruct::translateThrows( translationUnit ) );
[675716e]318 PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
319 PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
320 PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
321 PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
[81419b5]322 if ( libcfap ) {
323 // generate the bodies of cfa library functions
324 LibCfa::makeLibCfa( translationUnit );
[b87a5ed]325 } // if
326
[fa2de95]327 if ( declstatsp ) {
328 CodeTools::printDeclStats( translationUnit );
329 deleteAll( translationUnit );
[3e96559]330 return EXIT_SUCCESS;
331 } // if
[fa2de95]332
[de62360d]333 if ( bresolvep ) {
[1ab4ce2]334 dump( translationUnit );
[3e96559]335 return EXIT_SUCCESS;
[de62360d]336 } // if
337
[76b378d]338 CodeTools::fillLocations( translationUnit );
339
[3b3491b6]340 if ( resolvprotop ) {
341 CodeTools::dumpAsResolvProto( translationUnit );
[3e96559]342 return EXIT_SUCCESS;
343 } // if
[3b3491b6]344
[4a8f150]345 if( useNewAST ) {
[3746f777]346 if (Stats::Counters::enabled) {
347 ast::pass_visitor_stats.avg = Stats::Counters::build<Stats::Counters::AverageCounter<double>>("Average Depth - New");
348 ast::pass_visitor_stats.max = Stats::Counters::build<Stats::Counters::MaxCounter<double>>("Max depth - New");
349 }
[9ea38de]350 auto transUnit = convert( move( translationUnit ) );
351 PASS( "Resolve", ResolvExpr::resolve( transUnit ) );
[490fb92e]352 if ( exprp ) {
[e499381]353 dump( move( transUnit ) );
[490fb92e]354 return EXIT_SUCCESS;
355 } // if
356
[f57faf6f]357 forceFillCodeLocations( transUnit );
[4a8f150]358
[490fb92e]359 PASS( "Fix Init", InitTweak::fix(transUnit, buildingLibrary()));
[9ea38de]360 translationUnit = convert( move( transUnit ) );
[a77257be]361 } else {
362 PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
[490fb92e]363 if ( exprp ) {
364 dump( translationUnit );
365 return EXIT_SUCCESS;
366 }
[4615ac8]367
[490fb92e]368 PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
369 }
[81419b5]370
[71f4e4f]371 // fix ObjectDecl - replaces ConstructorInit nodes
[ca1c11f]372 if ( ctorinitp ) {
373 dump ( translationUnit );
[3e96559]374 return EXIT_SUCCESS;
[926af74]375 } // if
[71f4e4f]376
[675716e]377 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]378
[046a890]379 PASS( "Translate Tries" , ControlStruct::translateTries( translationUnit ) );
[6edd210]380
[675716e]381 PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
[307a732]382
[675716e]383 PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
[9f5ecf5]384
[675716e]385 PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
[626dbc10]386
387 if ( tuplep ) {
388 dump( translationUnit );
[3e96559]389 return EXIT_SUCCESS;
390 } // if
[141b786]391
[675716e]392 PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
[a5f0529]393
[675716e]394 PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
[53d3ab4b]395 if ( genericsp ) {
396 dump( translationUnit );
[3e96559]397 return EXIT_SUCCESS;
398 } // if
[b4f8808]399
[675716e]400 PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
[53d3ab4b]401
[fea7ca7]402 if ( bboxp ) {
403 dump( translationUnit );
[3e96559]404 return EXIT_SUCCESS;
[926af74]405 } // if
[675716e]406 PASS( "Box", GenPoly::box( translationUnit ) );
[81419b5]407
[aff7e86]408 PASS( "Link-Once", CodeGen::translateLinkOnce( translationUnit ) );
409
410 // Code has been lowered to C, now we can start generation.
411
[8905f56]412 if ( bcodegenp ) {
413 dump( translationUnit );
[3e96559]414 return EXIT_SUCCESS;
415 } // if
[8905f56]416
[13de47bc]417 if ( optind < argc ) { // any commands after the flags and input file ? => output file name
418 output = new ofstream( argv[ optind ] );
419 } // if
[0270824]420
[7b15d7a]421 CodeTools::fillLocations( translationUnit );
[62ce290]422 PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
[0270824]423
[37fe352]424 CodeGen::FixMain::fix( *output, (PreludeDirector + "/bootloader.c").c_str() );
[e6955b1]425 if ( output != &cout ) {
[b87a5ed]426 delete output;
427 } // if
[77d601f]428 } catch ( SemanticErrorException & e ) {
[b87a5ed]429 if ( errorp ) {
[e6955b1]430 cerr << "---AST at error:---" << endl;
431 dump( translationUnit, cerr );
432 cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]433 } // if
[d55d7a6]434 e.print();
[e6955b1]435 if ( output != &cout ) {
[b87a5ed]436 delete output;
437 } // if
[3e96559]438 return EXIT_FAILURE;
[77d601f]439 } catch ( UnimplementedError & e ) {
[e6955b1]440 cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
441 if ( output != &cout ) {
[b87a5ed]442 delete output;
443 } // if
[3e96559]444 return EXIT_FAILURE;
[77d601f]445 } catch ( CompilerError & e ) {
[e6955b1]446 cerr << "Compiler Error: " << e.get_what() << endl;
[c850687]447 cerr << "(please report bugs to [REDACTED])" << endl;
[e6955b1]448 if ( output != &cout ) {
[b87a5ed]449 delete output;
450 } // if
[3e96559]451 return EXIT_FAILURE;
[77d601f]452 } catch ( std::bad_alloc & ) {
453 cerr << "*cfa-cpp compilation error* std::bad_alloc" << endl;
454 backtrace( 1 );
455 abort();
[3e96559]456 } catch ( ... ) {
[bffcd66]457 exception_ptr eptr = current_exception();
[4990812]458 try {
459 if (eptr) {
[bffcd66]460 rethrow_exception(eptr);
[3e96559]461 } else {
[77d601f]462 cerr << "*cfa-cpp compilation error* exception uncaught and unknown" << endl;
[3e96559]463 } // if
[77d601f]464 } catch( const exception & e ) {
465 cerr << "*cfa-cpp compilation error* uncaught exception \"" << e.what() << "\"\n";
[3e96559]466 } // try
467 return EXIT_FAILURE;
468 } // try
[b87a5ed]469
[39786813]470 deleteAll( translationUnit );
[1cb7fab2]471 Stats::print();
[3e96559]472 return EXIT_SUCCESS;
[d9a0e76]473} // main
[51b73452]474
[0da3e2c]475
[3e9de01]476static const char optstring[] = ":c:ghlLmNnpdOAP:S:twW:D:";
[3e96559]477
[62ce290]478enum { PreludeDir = 128 };
[3e96559]479static struct option long_opts[] = {
[1a69a90]480 { "colors", required_argument, nullptr, 'c' },
481 { "gdb", no_argument, nullptr, 'g' },
[3e96559]482 { "help", no_argument, nullptr, 'h' },
483 { "libcfa", no_argument, nullptr, 'l' },
[62ce290]484 { "linemarks", no_argument, nullptr, 'L' },
[3e96559]485 { "no-main", no_argument, 0, 'm' },
[62ce290]486 { "no-linemarks", no_argument, nullptr, 'N' },
487 { "no-prelude", no_argument, nullptr, 'n' },
[3e96559]488 { "prototypes", no_argument, nullptr, 'p' },
[7215000]489 { "deterministic-out", no_argument, nullptr, 'd' },
[a77257be]490 { "old-ast", no_argument, nullptr, 'O'},
491 { "new-ast", no_argument, nullptr, 'A'},
[62ce290]492 { "print", required_argument, nullptr, 'P' },
493 { "prelude-dir", required_argument, nullptr, PreludeDir },
494 { "statistics", required_argument, nullptr, 'S' },
[3e96559]495 { "tree", no_argument, nullptr, 't' },
496 { "", no_argument, nullptr, 0 }, // -w
497 { "", no_argument, nullptr, 0 }, // -W
498 { "", no_argument, nullptr, 0 }, // -D
499 { nullptr, 0, nullptr, 0 }
500}; // long_opts
501
502static const char * description[] = {
[aa88cb9a]503 "diagnostic color: never, always, auto", // -c
[3e9de01]504 "wait for gdb to attach", // -g
[aa88cb9a]505 "print translator help message", // -h
[3e9de01]506 "generate libcfa.c", // -l
507 "generate line marks", // -L
508 "do not replace main", // -m
509 "do not generate line marks", // -N
510 "do not read prelude", // -n
[aa88cb9a]511 "do not generate prelude prototypes => prelude not printed", // -p
[3e9de01]512 "only print deterministic output", // -d
513 "Use the old-ast", // -O
514 "Use the new-ast", // -A
515 "print", // -P
[62ce290]516 "<directory> prelude directory for debug/nodebug", // no flag
[aa88cb9a]517 "<option-list> enable profiling information: counters, heap, time, all, none", // -S
[3e9de01]518 "building cfa standard lib", // -t
519 "", // -w
520 "", // -W
521 "", // -D
[3e96559]522}; // description
523
[0c0f548]524static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
[62ce290]525
526static struct Printopts {
527 const char * name;
528 int & flag;
529 int val;
530 const char * descript;
531} printopts[] = {
[0e464f6]532 { "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
533 { "asterr", errorp, true, "print AST on error" },
[62ce290]534 { "declstats", declstatsp, true, "code property statistics" },
535 { "parse", yydebug, true, "yacc (parsing) debug information" },
536 { "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
537 { "rproto", resolvprotop, true, "resolver-proto instance" },
[0e464f6]538 { "rsteps", resolvep, true, "print resolver steps" },
539 { "tree", parsep, true, "print parse tree" },
540 // code dumps
541 { "ast", astp, true, "print AST after parsing" },
542 { "symevt", symtabp, true, "print AST after symbol table events" },
543 { "altexpr", expraltp, true, "print alternatives for expressions" },
544 { "astdecl", validp, true, "print AST after declaration validation pass" },
545 { "resolver", bresolvep, true, "print AST before resolver step" },
546 { "astexpr", exprp, true, "print AST after expression analysis" },
547 { "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
548 { "tuple", tuplep, true, "print AST after tuple expansion" },
549 { "astgen", genericsp, true, "print AST after instantiate generics" },
550 { "box", bboxp, true, "print AST before box step" },
551 { "codegen", bcodegenp, true, "print AST before code generation" },
[62ce290]552};
553enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
554
[77d601f]555static void usage( char * argv[] ) {
[e0bd0f9]556 cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
[3e96559]557 int i = 0, j = 1; // j skips starting colon
558 for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
559 if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
[62ce290]560 if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
561 cout << " -" << optstring[j] << ",";
562 } else { // no flag
563 j -= 1; // compensate
564 cout << " ";
565 } // if
566 cout << " --" << left << setw(12) << long_opts[i].name << " ";
567 if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
568 cout << "one of: " << endl;
569 for ( int i = 0; i < printoptsSize; i += 1 ) {
570 cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
571 } // for
572 } else {
573 cout << description[i] << endl;
574 } // if
[3e96559]575 } // if
[62ce290]576 if ( optstring[j + 1] == ':' ) j += 1;
[3e96559]577 } // for
578 if ( long_opts[i].name != 0 || optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
579 exit( EXIT_FAILURE );
580} // usage
581
[e0bd0f9]582static void parse_cmdline( int argc, char * argv[] ) {
[0da3e2c]583 opterr = 0; // (global) prevent getopt from printing error messages
584
[c5e5109]585 bool Wsuppress = false, Werror = false;
[0da3e2c]586 int c;
[3e96559]587 while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
[0da3e2c]588 switch ( c ) {
[1a69a90]589 case 'c': // diagnostic colors
590 if ( strcmp( optarg, "always" ) == 0 ) {
591 ErrorHelpers::colors = ErrorHelpers::Colors::Always;
592 } else if ( strcmp( optarg, "never" ) == 0 ) {
593 ErrorHelpers::colors = ErrorHelpers::Colors::Never;
594 } else if ( strcmp( optarg, "auto" ) == 0 ) {
595 ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
596 } // if
597 break;
[3e96559]598 case 'h': // help message
599 usage( argv ); // no return
[53d3ab4b]600 break;
[3e96559]601 case 'l': // generate libcfa.c
[0da3e2c]602 libcfap = true;
603 break;
[62ce290]604 case 'L': // generate line marks
[6de43b6]605 linemarks = true;
[c850687]606 break;
[3e96559]607 case 'm': // do not replace main
608 nomainp = true;
[0da3e2c]609 break;
[62ce290]610 case 'N': // do not generate line marks
[6de43b6]611 linemarks = false;
[c59bde6]612 break;
[62ce290]613 case 'n': // do not read prelude
[3e96559]614 nopreludep = true;
[0da3e2c]615 break;
[62ce290]616 case 'p': // generate prototypes for prelude functions
617 genproto = true;
[0da3e2c]618 break;
[7215000]619 case 'd': // don't print non-deterministic output
[a77257be]620 deterministic_output = true;
621 break;
622 case 'O': // don't print non-deterministic output
623 useNewAST = false;
624 break;
625 case 'A': // don't print non-deterministic output
626 useNewAST = true;
[7215000]627 break;
[62ce290]628 case 'P': // print options
629 for ( int i = 0;; i += 1 ) {
630 if ( i == printoptsSize ) {
631 cout << "Unknown --print option " << optarg << endl;
632 goto Default;
633 } // if
634 if ( strcmp( optarg, printopts[i].name ) == 0 ) {
635 printopts[i].flag = printopts[i].val;
636 break;
637 } // if
638 } // for
[0da3e2c]639 break;
[62ce290]640 case PreludeDir: // prelude directory for debug/nodebug, hidden
641 PreludeDirector = optarg;
[3b3491b6]642 break;
[3e96559]643 case 'S': // enable profiling information, argument comma separated list of names
644 Stats::parse_params( optarg );
[ebcc940]645 break;
[dee1f89]646 case 't': // building cfa stdlib
[0da3e2c]647 treep = true;
648 break;
[dee1f89]649 case 'g': // wait for gdb
650 waiting_for_gdb = true;
651 break;
[3e96559]652 case 'w': // suppress all warnings, hidden
[c5e5109]653 Wsuppress = true;
[44bca7f]654 break;
[3e96559]655 case 'W': // coordinate gcc -W with CFA, hidden
[44bca7f]656 if ( strcmp( optarg, "all" ) == 0 ) {
[68e9ace]657 SemanticWarning_EnableAll();
[44bca7f]658 } else if ( strcmp( optarg, "error" ) == 0 ) {
659 Werror = true;
660 } else {
661 char * warning = optarg;
662 Severity s;
663 if ( strncmp( optarg, "no-", 3 ) == 0 ) {
664 warning += 3;
665 s = Severity::Suppress;
666 } else {
667 s = Severity::Warn;
668 } // if
[68e9ace]669 SemanticWarning_Set( warning, s );
[44bca7f]670 } // if
671 break;
[3e96559]672 case 'D': // ignore -Dxxx, forwarded by cpp, hidden
[0da3e2c]673 break;
[3e96559]674 case '?': // unknown option
675 if ( optopt ) { // short option ?
676 cout << "Unknown option -" << (char)optopt << endl;
677 } else {
678 cout << "Unknown option " << argv[optind - 1] << endl;
679 } // if
680 goto Default;
681 case ':': // missing option
[ae47a23]682 if ( optopt ) { // short option ?
[3e96559]683 cout << "Missing option for -" << (char)optopt << endl;
[ae47a23]684 } else {
[3e96559]685 cout << "Missing option for " << argv[optind - 1] << endl;
[ae47a23]686 } // if
[3e96559]687 goto Default;
688 Default:
689 default:
690 usage( argv ); // no return
[0da3e2c]691 } // switch
692 } // while
[44bca7f]693
694 if ( Werror ) {
[68e9ace]695 SemanticWarning_WarningAsError();
[44bca7f]696 } // if
[c5e5109]697 if ( Wsuppress ) {
698 SemanticWarning_SuppressAll();
699 } // if
[44bca7f]700 // for ( const auto w : WarningFormats ) {
701 // cout << w.name << ' ' << (int)w.severity << endl;
702 // } // for
[0da3e2c]703} // parse_cmdline
704
[8b7ee09]705static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]706 extern int yyparse( void );
[cbaee0d]707 extern FILE * yyin;
[0da3e2c]708 extern int yylineno;
709
[8b7ee09]710 ::linkage = linkage; // set globals
[0da3e2c]711 yyin = input;
712 yylineno = 1;
713 int parseStatus = yyparse();
[81419b5]714
715 fclose( input );
[0da3e2c]716 if ( shouldExit || parseStatus != 0 ) {
717 exit( parseStatus );
[81419b5]718 } // if
[0da3e2c]719} // parse
[81419b5]720
[1ab4ce2]721static bool notPrelude( Declaration * decl ) {
722 return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]723} // notPrelude
[1ab4ce2]724
[e6955b1]725static void dump( list< Declaration * > & translationUnit, ostream & out ) {
726 list< Declaration * > decls;
[926af74]727
[62ce290]728 if ( genproto ) {
[e6955b1]729 filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]730 } else {
731 decls = translationUnit;
[926af74]732 } // if
[1ab4ce2]733
[e39241b]734 // depending on commandline options, either generate code or dump the AST
735 if ( codegenp ) {
[62ce290]736 CodeGen::generate( decls, out, ! genproto, prettycodegenp );
[e39241b]737 } else {
738 printAll( decls, out );
[3e96559]739 } // if
[7f5566b]740 deleteAll( translationUnit );
[0da3e2c]741} // dump
[1ab4ce2]742
[e499381]743static void dump( ast::TranslationUnit && transUnit, ostream & out ) {
744 std::list< Declaration * > translationUnit = convert( move( transUnit ) );
745 dump( translationUnit, out );
746}
747
[51b73452]748// Local Variables: //
[b87a5ed]749// tab-width: 4 //
750// mode: c++ //
751// compile-command: "make install" //
[51b73452]752// End: //
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