source: src/main.cc@ 8a13c47

ADT arm-eh ast-experimental enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr pthread-emulation qualifiedEnum
Last change on this file since 8a13c47 was 7006ba5, checked in by Peter A. Buhr <pabuhr@…>, 6 years ago

move disabling SIGALRM/SIGUSR1 from main.cc to signal.hfa
  • Property mode set to 100644
File size: 24.5 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
[c59bde6]11// Last Modified By : Peter A. Buhr
[7006ba5]12// Last Modified On : Mon Dec 16 17:55:53 2019
13// Update Count : 627
[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
33
[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
39#include "CodeTools/DeclStats.h" // for printDeclStats
[3b3491b6]40#include "CodeTools/ResolvProtoDump.h" // for dumpAsResolvProto
[bf2438c]41#include "CodeTools/TrackLoc.h" // for fillLocations
42#include "Common/CompilerError.h" // for CompilerError
[7abee38]43#include "Common/Stats.h"
[cbbd5b48]44#include "Common/PassVisitor.h"
[bf2438c]45#include "Common/SemanticError.h" // for SemanticError
46#include "Common/UnimplementedError.h" // for UnimplementedError
47#include "Common/utility.h" // for deleteAll, filter, printAll
[9f5ecf5]48#include "Concurrency/Waitfor.h" // for generateWaitfor
[bf2438c]49#include "ControlStruct/ExceptTranslate.h" // for translateEHM
50#include "ControlStruct/Mutate.h" // for mutate
51#include "GenPoly/Box.h" // for box
52#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
53#include "GenPoly/Lvalue.h" // for convertLvalue
54#include "GenPoly/Specialize.h" // for convertSpecializations
55#include "InitTweak/FixInit.h" // for fix
56#include "InitTweak/GenInit.h" // for genInit
57#include "MakeLibCfa.h" // for makeLibCfa
58#include "Parser/ParseNode.h" // for DeclarationNode, buildList
59#include "Parser/TypedefTable.h" // for TypedefTable
60#include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
61#include "ResolvExpr/Resolver.h" // for resolve
62#include "SymTab/Validate.h" // for validate
[bffcd66]63#include "SynTree/LinkageSpec.h" // for Spec, Cforall, Intrinsic
[bf2438c]64#include "SynTree/Declaration.h" // for Declaration
65#include "SynTree/Visitor.h" // for acceptAll
66#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
[a5f0529]67#include "Virtual/ExpandCasts.h" // for expandCasts
[51b73452]68
[4615ac8]69
[3e96559]70static void NewPass( const char * const name ) {
71 Stats::Heap::newPass( name );
[1cb7fab2]72 using namespace Stats::Counters;
[b8665e3]73 {
[3e96559]74 static auto group = build<CounterGroup>( "Pass Visitor" );
75 auto pass = build<CounterGroup>( name, group );
[b8665e3]76 pass_visitor_stats.depth = 0;
[3e96559]77 pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
78 pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
[b8665e3]79 }
80 {
[3e96559]81 static auto group = build<CounterGroup>( "Syntax Node" );
82 auto pass = build<CounterGroup>( name, group );
83 BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
[b8665e3]84 }
[675716e]85}
86
[3e96559]87#define PASS( name, pass ) \
[ecaeac6e]88 if ( errorp ) { cerr << name << endl; } \
[675716e]89 NewPass(name); \
[4f97937]90 Stats::Time::StartBlock(name); \
91 pass; \
92 Stats::Time::StopBlock();
[0da3e2c]93
[8b7ee09]94LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]95TypedefTable typedefTable;
[cbaee0d]96DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]97
[ef22ad6]98static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
[dee1f89]99
[bffcd66]100static string PreludeDirector = "";
[4dcaed2]101
[e0bd0f9]102static void parse_cmdline( int argc, char *argv[] );
[8b7ee09]103static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]104static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
105
[0afffee]106static void backtrace( int start ) { // skip first N stack frames
[e6955b1]107 enum { Frames = 50 };
108 void * array[Frames];
[0afffee]109 int size = ::backtrace( array, Frames );
110 char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
111
112 *index( messages[0], '(' ) = '\0'; // find executable name
113 cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]114
[b542bfb]115 // skip last 2 stack frames after main
116 for ( int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]117 char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
[7006ba5]118
119 for ( char * p = messages[i]; *p; p += 1 ) { // find parantheses and +offset
[0afffee]120 if ( *p == '(' ) {
[46f6134]121 mangled_name = p;
[0afffee]122 } else if ( *p == '+' ) {
[e6955b1]123 offset_begin = p;
[0afffee]124 } else if ( *p == ')' ) {
[e6955b1]125 offset_end = p;
126 break;
127 } // if
128 } // for
129
130 // if line contains symbol, attempt to demangle
[b542bfb]131 int frameNo = i - start;
[e6955b1]132 if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]133 *mangled_name++ = '\0'; // delimit strings
[e6955b1]134 *offset_begin++ = '\0';
135 *offset_end++ = '\0';
136
[0afffee]137 int status;
[e6955b1]138 char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]139 // bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]140 if ( status == 0 ) { // demangling successful ?
[b542bfb]141 cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]142 << real_name << "+" << offset_begin << offset_end << endl;
143 } else { // otherwise, output mangled name
[b542bfb]144 cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]145 << mangled_name << "(/*unknown*/)+" << offset_begin << offset_end << endl;
[e6955b1]146 } // if
[0afffee]147
[e6955b1]148 free( real_name );
149 } else { // otherwise, print the whole line
[b542bfb]150 cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]151 } // if
152 } // for
[b542bfb]153
[e6955b1]154 free( messages );
[b542bfb]155} // backtrace
156
[bffcd66]157#define SIGPARMS int sig __attribute__(( unused )), siginfo_t * sfp __attribute__(( unused )), ucontext_t * cxt __attribute__(( unused ))
158
159static void Signal( int sig, void (*handler)(SIGPARMS), int flags ) {
160 struct sigaction act;
161
162 act.sa_sigaction = (void (*)(int, siginfo_t *, void *))handler;
163 act.sa_flags = flags;
164
165 if ( sigaction( sig, &act, nullptr ) == -1 ) {
166 cerr << "*CFA runtime error* problem installing signal handler, error(" << errno << ") " << strerror( errno ) << endl;
167 _exit( EXIT_FAILURE );
168 } // if
169} // Signal
170
171static void sigSegvBusHandler( SIGPARMS ) {
172 if ( sfp->si_addr == nullptr ) {
173 cerr << "Null pointer (nullptr) dereference." << endl;
174 } else {
175 cerr << (sig == SIGSEGV ? "Segment fault" : "Bus error") << " at memory location " << sfp->si_addr << "." << endl
176 << "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;
177 } // if
[b542bfb]178 backtrace( 2 ); // skip first 2 stack frames
[3e96559]179 abort(); // cause core dump for debugging
[e6955b1]180} // sigSegvBusHandler
[0da3e2c]181
[bffcd66]182static void sigAbortHandler( SIGPARMS ) {
[b542bfb]183 backtrace( 6 ); // skip first 6 stack frames
[bffcd66]184 Signal( SIGABRT, (void (*)(SIGPARMS))SIG_DFL, SA_SIGINFO ); // reset default signal handler
[9be45a2]185 raise( SIGABRT ); // reraise SIGABRT
[b542bfb]186} // sigAbortHandler
187
[cbaee0d]188int main( int argc, char * argv[] ) {
[3b8e52c]189 FILE * input; // use FILE rather than istream because yyin is FILE
[d08beee]190 ostream * output = & cout;
[e6955b1]191 list< Declaration * > translationUnit;
192
[bffcd66]193 Signal( SIGSEGV, sigSegvBusHandler, SA_SIGINFO );
194 Signal( SIGBUS, sigSegvBusHandler, SA_SIGINFO );
195 Signal( SIGABRT, sigAbortHandler, SA_SIGINFO );
[b87a5ed]196
[bffcd66]197 // cout << "main" << endl;
[44bca7f]198 // for ( int i = 0; i < argc; i += 1 ) {
[bffcd66]199 // cout << '\t' << argv[i] << endl;
[44bca7f]200 // } // for
201
[e0bd0f9]202 parse_cmdline( argc, argv ); // process command-line arguments
[13de47bc]203 CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]204
[ef22ad6]205 if ( waiting_for_gdb ) {
[bffcd66]206 cerr << "Waiting for gdb" << endl;
207 cerr << "run :" << endl;
208 cerr << " gdb attach " << getpid() << endl;
[dee1f89]209 raise(SIGSTOP);
[ef22ad6]210 } // if
[dee1f89]211
[b87a5ed]212 try {
[81419b5]213 // choose to read the program from a file or stdin
[3b8e52c]214 if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]215 input = fopen( argv[ optind ], "r" );
[e0bd0f9]216 assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
[b87a5ed]217 optind += 1;
[3b8e52c]218 } else { // no input file name
[b87a5ed]219 input = stdin;
220 } // if
221
[79eaeb7]222 Stats::Time::StartGlobal();
[3c0d4cd]223 NewPass("Parse");
224 Stats::Time::StartBlock("Parse");
[675716e]225
[159c62e]226 // read in the builtins, extras, and the prelude
[de62360d]227 if ( ! nopreludep ) { // include gcc builtins
[faf8857]228 // -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[807ce84]229
[37fe352]230 assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
[4dcaed2]231
[807ce84]232 // Read to gcc builtins, if not generating the cfa library
[37fe352]233 FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
[6ce3ae9]234 assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
235 parse( gcc_builtins, LinkageSpec::Compiler );
[81419b5]236
[159c62e]237 // read the extra prelude in, if not generating the cfa library
[37fe352]238 FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
[3b8e52c]239 assertf( extras, "cannot open extras.cf\n" );
[f0994a1]240 parse( extras, LinkageSpec::BuiltinC );
[159c62e]241
[81419b5]242 if ( ! libcfap ) {
[faf8857]243 // read the prelude in, if not generating the cfa library
[e523b07]244 FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
245 assertf( prelude, "cannot open prelude.cfa\n" );
[35304009]246 parse( prelude, LinkageSpec::Intrinsic );
[fa4805f]247
248 // Read to cfa builtins, if not generating the cfa library
[37fe352]249 FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
[fa4805f]250 assertf( builtins, "cannot open builtins.cf\n" );
[54d714e]251 parse( builtins, LinkageSpec::BuiltinCFA );
[b87a5ed]252 } // if
253 } // if
[81419b5]254
[926af74]255 parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]256
[b87a5ed]257 if ( parsep ) {
[e6955b1]258 parseTree->printList( cout );
[0da3e2c]259 delete parseTree;
[3e96559]260 return EXIT_SUCCESS;
[b87a5ed]261 } // if
262
[0da3e2c]263 buildList( parseTree, translationUnit );
264 delete parseTree;
[cbaee0d]265 parseTree = nullptr;
[b87a5ed]266
267 if ( astp ) {
[1ab4ce2]268 dump( translationUnit );
[3e96559]269 return EXIT_SUCCESS;
[b87a5ed]270 } // if
271
[036dd5f]272 // Temporary: fill locations after parsing so that every node has a location, for early error messages.
273 // Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
274 // works okay for now.
275 CodeTools::fillLocations( translationUnit );
[3c0d4cd]276 Stats::Time::StopBlock();
[036dd5f]277
[839ccbb]278 // add the assignment statement after the initialization of a type parameter
[675716e]279 PASS( "Validate", SymTab::validate( translationUnit, symtabp ) );
[81419b5]280 if ( symtabp ) {
[46f6134]281 deleteAll( translationUnit );
[3e96559]282 return EXIT_SUCCESS;
[b87a5ed]283 } // if
284
[81419b5]285 if ( expraltp ) {
[bff09c8]286 PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
[81419b5]287 acceptAll( translationUnit, printer );
[3e96559]288 return EXIT_SUCCESS;
[b87a5ed]289 } // if
290
291 if ( validp ) {
[1ab4ce2]292 dump( translationUnit );
[3e96559]293 return EXIT_SUCCESS;
[b87a5ed]294 } // if
295
[675716e]296 PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
297 PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
298 PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
299 PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
[81419b5]300 if ( libcfap ) {
301 // generate the bodies of cfa library functions
302 LibCfa::makeLibCfa( translationUnit );
[b87a5ed]303 } // if
304
[fa2de95]305 if ( declstatsp ) {
306 CodeTools::printDeclStats( translationUnit );
307 deleteAll( translationUnit );
[3e96559]308 return EXIT_SUCCESS;
309 } // if
[fa2de95]310
[de62360d]311 if ( bresolvep ) {
[1ab4ce2]312 dump( translationUnit );
[3e96559]313 return EXIT_SUCCESS;
[de62360d]314 } // if
315
[76b378d]316 CodeTools::fillLocations( translationUnit );
317
[3b3491b6]318 if ( resolvprotop ) {
319 CodeTools::dumpAsResolvProto( translationUnit );
[3e96559]320 return EXIT_SUCCESS;
321 } // if
[3b3491b6]322
[675716e]323 PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
[81419b5]324 if ( exprp ) {
[1ab4ce2]325 dump( translationUnit );
[3e96559]326 return EXIT_SUCCESS;
[926af74]327 } // if
[81419b5]328
[71f4e4f]329 // fix ObjectDecl - replaces ConstructorInit nodes
[675716e]330 PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
[ca1c11f]331 if ( ctorinitp ) {
332 dump ( translationUnit );
[3e96559]333 return EXIT_SUCCESS;
[926af74]334 } // if
[71f4e4f]335
[675716e]336 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]337
[675716e]338 PASS( "Translate EHM" , ControlStruct::translateEHM( translationUnit ) );
[6edd210]339
[675716e]340 PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
[307a732]341
[675716e]342 PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
[9f5ecf5]343
[675716e]344 PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
[626dbc10]345
346 if ( tuplep ) {
347 dump( translationUnit );
[3e96559]348 return EXIT_SUCCESS;
349 } // if
[141b786]350
[675716e]351 PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
[a5f0529]352
[675716e]353 PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
[53d3ab4b]354 if ( genericsp ) {
355 dump( translationUnit );
[3e96559]356 return EXIT_SUCCESS;
357 } // if
[b4f8808]358
[675716e]359 PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
[53d3ab4b]360
[fea7ca7]361 if ( bboxp ) {
362 dump( translationUnit );
[3e96559]363 return EXIT_SUCCESS;
[926af74]364 } // if
[675716e]365 PASS( "Box", GenPoly::box( translationUnit ) );
[81419b5]366
[8905f56]367 if ( bcodegenp ) {
368 dump( translationUnit );
[3e96559]369 return EXIT_SUCCESS;
370 } // if
[8905f56]371
[13de47bc]372 if ( optind < argc ) { // any commands after the flags and input file ? => output file name
373 output = new ofstream( argv[ optind ] );
374 } // if
[0270824]375
[7b15d7a]376 CodeTools::fillLocations( translationUnit );
[62ce290]377 PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
[0270824]378
[37fe352]379 CodeGen::FixMain::fix( *output, (PreludeDirector + "/bootloader.c").c_str() );
[e6955b1]380 if ( output != &cout ) {
[b87a5ed]381 delete output;
382 } // if
[a16764a6]383 } catch ( SemanticErrorException &e ) {
[b87a5ed]384 if ( errorp ) {
[e6955b1]385 cerr << "---AST at error:---" << endl;
386 dump( translationUnit, cerr );
387 cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]388 } // if
[d55d7a6]389 e.print();
[e6955b1]390 if ( output != &cout ) {
[b87a5ed]391 delete output;
392 } // if
[3e96559]393 return EXIT_FAILURE;
[b87a5ed]394 } catch ( UnimplementedError &e ) {
[e6955b1]395 cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
396 if ( output != &cout ) {
[b87a5ed]397 delete output;
398 } // if
[3e96559]399 return EXIT_FAILURE;
[b87a5ed]400 } catch ( CompilerError &e ) {
[e6955b1]401 cerr << "Compiler Error: " << e.get_what() << endl;
[c850687]402 cerr << "(please report bugs to [REDACTED])" << endl;
[e6955b1]403 if ( output != &cout ) {
[b87a5ed]404 delete output;
405 } // if
[3e96559]406 return EXIT_FAILURE;
407 } catch ( ... ) {
[bffcd66]408 exception_ptr eptr = current_exception();
[4990812]409 try {
410 if (eptr) {
[bffcd66]411 rethrow_exception(eptr);
[3e96559]412 } else {
[bffcd66]413 cerr << "Exception Uncaught and Unknown" << endl;
[3e96559]414 } // if
[bffcd66]415 } catch(const exception& e) {
416 cerr << "Uncaught Exception \"" << e.what() << "\"\n";
[3e96559]417 } // try
418 return EXIT_FAILURE;
419 } // try
[b87a5ed]420
[39786813]421 deleteAll( translationUnit );
[1cb7fab2]422 Stats::print();
[3e96559]423 return EXIT_SUCCESS;
[d9a0e76]424} // main
[51b73452]425
[0da3e2c]426
[1a69a90]427static const char optstring[] = ":c:ghlLmNnpP:S:twW:D:";
[3e96559]428
[62ce290]429enum { PreludeDir = 128 };
[3e96559]430static struct option long_opts[] = {
[1a69a90]431 { "colors", required_argument, nullptr, 'c' },
432 { "gdb", no_argument, nullptr, 'g' },
[3e96559]433 { "help", no_argument, nullptr, 'h' },
434 { "libcfa", no_argument, nullptr, 'l' },
[62ce290]435 { "linemarks", no_argument, nullptr, 'L' },
[3e96559]436 { "no-main", no_argument, 0, 'm' },
[62ce290]437 { "no-linemarks", no_argument, nullptr, 'N' },
438 { "no-prelude", no_argument, nullptr, 'n' },
[3e96559]439 { "prototypes", no_argument, nullptr, 'p' },
[62ce290]440 { "print", required_argument, nullptr, 'P' },
441 { "prelude-dir", required_argument, nullptr, PreludeDir },
442 { "statistics", required_argument, nullptr, 'S' },
[3e96559]443 { "tree", no_argument, nullptr, 't' },
444 { "", no_argument, nullptr, 0 }, // -w
445 { "", no_argument, nullptr, 0 }, // -W
446 { "", no_argument, nullptr, 0 }, // -D
447 { nullptr, 0, nullptr, 0 }
448}; // long_opts
449
450static const char * description[] = {
[49d3128]451 "diagnostic color: never, always, or auto.", // -c
452 "wait for gdb to attach", // -g
453 "print help message", // -h
454 "generate libcfa.c", // -l
455 "generate line marks", // -L
456 "do not replace main", // -m
457 "do not generate line marks", // -N
458 "do not read prelude", // -n
[62ce290]459 "generate prototypes for prelude functions", // -p
[49d3128]460 "print", // -P
[62ce290]461 "<directory> prelude directory for debug/nodebug", // no flag
462 "<option-list> enable profiling information:\n counters,heap,time,all,none", // -S
[49d3128]463 "building cfa standard lib", // -t
464 "", // -w
465 "", // -W
466 "", // -D
[3e96559]467}; // description
468
[0c0f548]469static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
[62ce290]470
471static struct Printopts {
472 const char * name;
473 int & flag;
474 int val;
475 const char * descript;
476} printopts[] = {
[0e464f6]477 { "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
478 { "asterr", errorp, true, "print AST on error" },
[62ce290]479 { "declstats", declstatsp, true, "code property statistics" },
480 { "parse", yydebug, true, "yacc (parsing) debug information" },
481 { "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
482 { "rproto", resolvprotop, true, "resolver-proto instance" },
[0e464f6]483 { "rsteps", resolvep, true, "print resolver steps" },
484 { "tree", parsep, true, "print parse tree" },
485 // code dumps
486 { "ast", astp, true, "print AST after parsing" },
487 { "symevt", symtabp, true, "print AST after symbol table events" },
488 { "altexpr", expraltp, true, "print alternatives for expressions" },
489 { "astdecl", validp, true, "print AST after declaration validation pass" },
490 { "resolver", bresolvep, true, "print AST before resolver step" },
491 { "astexpr", exprp, true, "print AST after expression analysis" },
492 { "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
493 { "tuple", tuplep, true, "print AST after tuple expansion" },
494 { "astgen", genericsp, true, "print AST after instantiate generics" },
495 { "box", bboxp, true, "print AST before box step" },
496 { "codegen", bcodegenp, true, "print AST before code generation" },
[62ce290]497};
498enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
499
[3e96559]500static void usage( char *argv[] ) {
[e0bd0f9]501 cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
[3e96559]502 int i = 0, j = 1; // j skips starting colon
503 for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
504 if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
[62ce290]505 if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
506 cout << " -" << optstring[j] << ",";
507 } else { // no flag
508 j -= 1; // compensate
509 cout << " ";
510 } // if
511 cout << " --" << left << setw(12) << long_opts[i].name << " ";
512 if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
513 cout << "one of: " << endl;
514 for ( int i = 0; i < printoptsSize; i += 1 ) {
515 cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
516 } // for
517 } else {
518 cout << description[i] << endl;
519 } // if
[3e96559]520 } // if
[62ce290]521 if ( optstring[j + 1] == ':' ) j += 1;
[3e96559]522 } // for
523 if ( long_opts[i].name != 0 || optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
524 exit( EXIT_FAILURE );
525} // usage
526
[e0bd0f9]527static void parse_cmdline( int argc, char * argv[] ) {
[0da3e2c]528 opterr = 0; // (global) prevent getopt from printing error messages
529
[c5e5109]530 bool Wsuppress = false, Werror = false;
[0da3e2c]531 int c;
[3e96559]532 while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
[0da3e2c]533 switch ( c ) {
[1a69a90]534 case 'c': // diagnostic colors
535 if ( strcmp( optarg, "always" ) == 0 ) {
536 ErrorHelpers::colors = ErrorHelpers::Colors::Always;
537 } else if ( strcmp( optarg, "never" ) == 0 ) {
538 ErrorHelpers::colors = ErrorHelpers::Colors::Never;
539 } else if ( strcmp( optarg, "auto" ) == 0 ) {
540 ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
541 } // if
542 break;
[3e96559]543 case 'h': // help message
544 usage( argv ); // no return
[53d3ab4b]545 break;
[3e96559]546 case 'l': // generate libcfa.c
[0da3e2c]547 libcfap = true;
548 break;
[62ce290]549 case 'L': // generate line marks
[6de43b6]550 linemarks = true;
[c850687]551 break;
[3e96559]552 case 'm': // do not replace main
553 nomainp = true;
[0da3e2c]554 break;
[62ce290]555 case 'N': // do not generate line marks
[6de43b6]556 linemarks = false;
[c59bde6]557 break;
[62ce290]558 case 'n': // do not read prelude
[3e96559]559 nopreludep = true;
[0da3e2c]560 break;
[62ce290]561 case 'p': // generate prototypes for prelude functions
562 genproto = true;
[0da3e2c]563 break;
[62ce290]564 case 'P': // print options
565 for ( int i = 0;; i += 1 ) {
566 if ( i == printoptsSize ) {
567 cout << "Unknown --print option " << optarg << endl;
568 goto Default;
569 } // if
570 if ( strcmp( optarg, printopts[i].name ) == 0 ) {
571 printopts[i].flag = printopts[i].val;
572 break;
573 } // if
574 } // for
[0da3e2c]575 break;
[62ce290]576 case PreludeDir: // prelude directory for debug/nodebug, hidden
577 PreludeDirector = optarg;
[3b3491b6]578 break;
[3e96559]579 case 'S': // enable profiling information, argument comma separated list of names
580 Stats::parse_params( optarg );
[ebcc940]581 break;
[dee1f89]582 case 't': // building cfa stdlib
[0da3e2c]583 treep = true;
584 break;
[dee1f89]585 case 'g': // wait for gdb
586 waiting_for_gdb = true;
587 break;
[3e96559]588 case 'w': // suppress all warnings, hidden
[c5e5109]589 Wsuppress = true;
[44bca7f]590 break;
[3e96559]591 case 'W': // coordinate gcc -W with CFA, hidden
[44bca7f]592 if ( strcmp( optarg, "all" ) == 0 ) {
[68e9ace]593 SemanticWarning_EnableAll();
[44bca7f]594 } else if ( strcmp( optarg, "error" ) == 0 ) {
595 Werror = true;
596 } else {
597 char * warning = optarg;
598 Severity s;
599 if ( strncmp( optarg, "no-", 3 ) == 0 ) {
600 warning += 3;
601 s = Severity::Suppress;
602 } else {
603 s = Severity::Warn;
604 } // if
[68e9ace]605 SemanticWarning_Set( warning, s );
[44bca7f]606 } // if
607 break;
[3e96559]608 case 'D': // ignore -Dxxx, forwarded by cpp, hidden
[0da3e2c]609 break;
[3e96559]610 case '?': // unknown option
611 if ( optopt ) { // short option ?
612 cout << "Unknown option -" << (char)optopt << endl;
613 } else {
614 cout << "Unknown option " << argv[optind - 1] << endl;
615 } // if
616 goto Default;
617 case ':': // missing option
[ae47a23]618 if ( optopt ) { // short option ?
[3e96559]619 cout << "Missing option for -" << (char)optopt << endl;
[ae47a23]620 } else {
[3e96559]621 cout << "Missing option for " << argv[optind - 1] << endl;
[ae47a23]622 } // if
[3e96559]623 goto Default;
624 Default:
625 default:
626 usage( argv ); // no return
[0da3e2c]627 } // switch
628 } // while
[44bca7f]629
630 if ( Werror ) {
[68e9ace]631 SemanticWarning_WarningAsError();
[44bca7f]632 } // if
[c5e5109]633 if ( Wsuppress ) {
634 SemanticWarning_SuppressAll();
635 } // if
[44bca7f]636 // for ( const auto w : WarningFormats ) {
637 // cout << w.name << ' ' << (int)w.severity << endl;
638 // } // for
[0da3e2c]639} // parse_cmdline
640
[8b7ee09]641static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]642 extern int yyparse( void );
[cbaee0d]643 extern FILE * yyin;
[0da3e2c]644 extern int yylineno;
645
[8b7ee09]646 ::linkage = linkage; // set globals
[0da3e2c]647 yyin = input;
648 yylineno = 1;
649 int parseStatus = yyparse();
[81419b5]650
651 fclose( input );
[0da3e2c]652 if ( shouldExit || parseStatus != 0 ) {
653 exit( parseStatus );
[81419b5]654 } // if
[0da3e2c]655} // parse
[81419b5]656
[1ab4ce2]657static bool notPrelude( Declaration * decl ) {
658 return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]659} // notPrelude
[1ab4ce2]660
[e6955b1]661static void dump( list< Declaration * > & translationUnit, ostream & out ) {
662 list< Declaration * > decls;
[926af74]663
[62ce290]664 if ( genproto ) {
[e6955b1]665 filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]666 } else {
667 decls = translationUnit;
[926af74]668 } // if
[1ab4ce2]669
[e39241b]670 // depending on commandline options, either generate code or dump the AST
671 if ( codegenp ) {
[62ce290]672 CodeGen::generate( decls, out, ! genproto, prettycodegenp );
[e39241b]673 } else {
674 printAll( decls, out );
[3e96559]675 } // if
[7f5566b]676 deleteAll( translationUnit );
[0da3e2c]677} // dump
[1ab4ce2]678
[51b73452]679// Local Variables: //
[b87a5ed]680// tab-width: 4 //
681// mode: c++ //
682// compile-command: "make install" //
[51b73452]683// End: //
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