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source: src/main.cc @ 348006f

ADTaaron-thesisarm-ehast-experimentalcleanup-dtorsdeferred_resndemanglerenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprnew-envno_listpersistent-indexerpthread-emulationqualifiedEnumresolv-newwith_gc

Last change on this file since 348006f was 64adb03, checked in by Thierry Delisle <tdelisle@…>, 7 years ago
Added first implementation of mutex keyword
Property mode set to `100644`
File size: 14.9 KB

Rev	Line
[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	//
[843054c2]	9	// Author : Richard C. Bilson
[b87a5ed]	10	// Created On : Fri May 15 23:12:02 2015
[dd51906]	11	// Last Modified By : Peter A. Buhr
[375a068]	12	// Last Modified On : Wed Dec 14 14:35:54 2016
	13	// Update Count : 436
[b87a5ed]	14	//
	15
[51b7345]	16	#include <iostream>
	17	#include <fstream>
[e6955b1]	18	#include <signal.h> // signal
	19	#include <getopt.h> // getopt
[0afffee]	20	#include <execinfo.h> // backtrace, backtrace_symbols
[e6955b1]	21	#include <cxxabi.h> // __cxa_demangle
[0afffee]	22	#include <cstring> // index
[e6955b1]	23
	24	using namespace std;
	25
[0da3e2c]	26	#include "Parser/lex.h"
	27	#include "Parser/parser.h"
	28	#include "Parser/TypedefTable.h"
[51b7345]	29	#include "GenPoly/Lvalue.h"
	30	#include "GenPoly/Specialize.h"
	31	#include "GenPoly/Box.h"
	32	#include "GenPoly/CopyParams.h"
[ea5daeb]	33	#include "GenPoly/InstantiateGeneric.h"
[64adb03]	34	#include "Concurrency/Keywords.h"
[51b7345]	35	#include "CodeGen/Generate.h"
	36	#include "CodeGen/FixNames.h"
[13de47bc]	37	#include "CodeGen/FixMain.h"
[41a7137]	38	#include "CodeTools/DeclStats.h"
[51b7345]	39	#include "ControlStruct/Mutate.h"
	40	#include "SymTab/Validate.h"
	41	#include "ResolvExpr/AlternativePrinter.h"
	42	#include "ResolvExpr/Resolver.h"
	43	#include "MakeLibCfa.h"
[a0fdbd5]	44	#include "InitTweak/GenInit.h"
[71f4e4f]	45	#include "InitTweak/FixInit.h"
[d3b7937]	46	#include "Common/UnimplementedError.h"
[51b7345]	47	#include "../config.h"
[6eb8948]	48	#include "Tuples/Tuples.h"
[51b7345]	49
	50	using namespace std;
	51
[e6955b1]	52	#define OPTPRINT(x) if ( errorp ) cerr << x << endl;
[81419b5]	53
[0da3e2c]	54
[8b7ee09]	55	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]	56	TypedefTable typedefTable;
[cbaee0d]	57	DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]	58
[926af74]	59	extern int yydebug; // set for -g flag (Grammar)
[b87a5ed]	60	bool
	61	astp = false,
[de62360d]	62	bresolvep = false,
[fea7ca7]	63	bboxp = false,
[ca1c11f]	64	ctorinitp = false,
[41a7137]	65	declstatsp = false,
[b87a5ed]	66	exprp = false,
	67	expraltp = false,
	68	libcfap = false,
[de62360d]	69	nopreludep = false,
[1ab4ce2]	70	noprotop = false,
[3fe34ae]	71	nomainp = false,
[de62360d]	72	parsep = false,
[b87a5ed]	73	resolvep = false, // used in AlternativeFinder
	74	symtabp = false,
[d3b7937]	75	treep = false,
[626dbc10]	76	tuplep = false,
[b87a5ed]	77	validp = false,
[de62360d]	78	errorp = false,
[35b1bf4]	79	codegenp = false,
	80	prettycodegenp = false;
[b87a5ed]	81
[926af74]	82	static void parse_cmdline( int argc, char argv[], const char & filename );
[8b7ee09]	83	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]	84	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
	85
[0afffee]	86	static void backtrace( int start ) { // skip first N stack frames
[e6955b1]	87	enum { Frames = 50 };
	88	void * array[Frames];
[0afffee]	89	int size = ::backtrace( array, Frames );
	90	char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
	91
	92	*index( messages[0], '(' ) = '\0'; // find executable name
	93	cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]	94
[b542bfb]	95	// skip last 2 stack frames after main
	96	for ( int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]	97	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
	98	for ( char p = messages[i]; p; ++p ) { // find parantheses and +offset
[0afffee]	99	if ( *p == '(' ) {
[46f6134]	100	mangled_name = p;
[0afffee]	101	} else if ( *p == '+' ) {
[e6955b1]	102	offset_begin = p;
[0afffee]	103	} else if ( *p == ')' ) {
[e6955b1]	104	offset_end = p;
	105	break;
	106	} // if
	107	} // for
	108
	109	// if line contains symbol, attempt to demangle
[b542bfb]	110	int frameNo = i - start;
[e6955b1]	111	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]	112	*mangled_name++ = '\0'; // delimit strings
[e6955b1]	113	*offset_begin++ = '\0';
	114	*offset_end++ = '\0';
	115
[0afffee]	116	int status;
[e6955b1]	117	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]	118	// bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]	119	if ( status == 0 ) { // demangling successful ?
[b542bfb]	120	cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]	121	<< real_name << "+" << offset_begin << offset_end << endl;
	122	} else { // otherwise, output mangled name
[b542bfb]	123	cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]	124	<< mangled_name << "(/unknown/)+" << offset_begin << offset_end << endl;
[e6955b1]	125	} // if
[0afffee]	126
[e6955b1]	127	free( real_name );
	128	} else { // otherwise, print the whole line
[b542bfb]	129	cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]	130	} // if
	131	} // for
[b542bfb]	132
[e6955b1]	133	free( messages );
[b542bfb]	134	} // backtrace
	135
	136	void sigSegvBusHandler( int sig_num ) {
	137	cerr << "CFA runtime error program cfa-cpp terminated with "
	138	<< (sig_num == SIGSEGV ? "segment fault" : "bus error")
[0afffee]	139	<< "." << endl;
[b542bfb]	140	backtrace( 2 ); // skip first 2 stack frames
[e6955b1]	141	exit( EXIT_FAILURE );
	142	} // sigSegvBusHandler
[0da3e2c]	143
[b542bfb]	144	void sigAbortHandler( int sig_num ) {
	145	backtrace( 6 ); // skip first 6 stack frames
	146	signal( SIGABRT, SIG_DFL); // reset default signal handler
	147	raise( SIGABRT ); // reraise SIGABRT
	148	} // sigAbortHandler
	149
	150
[cbaee0d]	151	int main( int argc, char * argv[] ) {
[3b8e52c]	152	FILE * input; // use FILE rather than istream because yyin is FILE
[e6955b1]	153	ostream *output = & cout;
[926af74]	154	const char *filename = nullptr;
[e6955b1]	155	list< Declaration * > translationUnit;
	156
	157	signal( SIGSEGV, sigSegvBusHandler );
	158	signal( SIGBUS, sigSegvBusHandler );
[b542bfb]	159	signal( SIGABRT, sigAbortHandler );
[b87a5ed]	160
[0da3e2c]	161	parse_cmdline( argc, argv, filename ); // process command-line arguments
[13de47bc]	162	CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]	163
	164	try {
[81419b5]	165	// choose to read the program from a file or stdin
[3b8e52c]	166	if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]	167	input = fopen( argv[ optind ], "r" );
[3b8e52c]	168	assertf( input, "cannot open %s\n", argv[ optind ] );
[d029162]	169	// if running cfa-cpp directly, might forget to pass -F option (and really shouldn't have to)
[926af74]	170	if ( filename == nullptr ) filename = argv[ optind ];
[37024fd]	171	// prelude filename comes in differently
	172	if ( libcfap ) filename = "prelude.cf";
[b87a5ed]	173	optind += 1;
[3b8e52c]	174	} else { // no input file name
[b87a5ed]	175	input = stdin;
[2a7e29b]	176	// if running cfa-cpp directly, might forget to pass -F option. Since this takes from stdin, pass
	177	// a fake name along
[926af74]	178	if ( filename == nullptr ) filename = "stdin";
[b87a5ed]	179	} // if
	180
[159c62e]	181	// read in the builtins, extras, and the prelude
[de62360d]	182	if ( ! nopreludep ) { // include gcc builtins
[faf8857]	183	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[375a068]	184	FILE * builtins = fopen( libcfap \| treep ? "../prelude/builtins.cf" : CFA_LIBDIR "/builtins.cf", "r" );
[3b8e52c]	185	assertf( builtins, "cannot open builtins.cf\n" );
[81419b5]	186	parse( builtins, LinkageSpec::Compiler );
	187
[159c62e]	188	// read the extra prelude in, if not generating the cfa library
[375a068]	189	FILE * extras = fopen( libcfap \| treep ? "../prelude/extras.cf" : CFA_LIBDIR "/extras.cf", "r" );
[3b8e52c]	190	assertf( extras, "cannot open extras.cf\n" );
[159c62e]	191	parse( extras, LinkageSpec::C );
	192
[81419b5]	193	if ( ! libcfap ) {
[faf8857]	194	// read the prelude in, if not generating the cfa library
[375a068]	195	FILE * prelude = fopen( treep ? "../prelude/prelude.cf" : CFA_LIBDIR "/prelude.cf", "r" );
[3b8e52c]	196	assertf( prelude, "cannot open prelude.cf\n" );
[35304009]	197	parse( prelude, LinkageSpec::Intrinsic );
[b87a5ed]	198	} // if
	199	} // if
[81419b5]	200
[926af74]	201	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]	202
[b87a5ed]	203	if ( parsep ) {
[e6955b1]	204	parseTree->printList( cout );
[0da3e2c]	205	delete parseTree;
[b87a5ed]	206	return 0;
	207	} // if
	208
[0da3e2c]	209	buildList( parseTree, translationUnit );
	210	delete parseTree;
[cbaee0d]	211	parseTree = nullptr;
[b87a5ed]	212
	213	if ( astp ) {
[1ab4ce2]	214	dump( translationUnit );
[b87a5ed]	215	return 0;
	216	} // if
	217
[839ccbb]	218	// add the assignment statement after the initialization of a type parameter
[81419b5]	219	OPTPRINT( "validate" )
	220	SymTab::validate( translationUnit, symtabp );
	221	if ( symtabp ) {
[46f6134]	222	deleteAll( translationUnit );
[b87a5ed]	223	return 0;
	224	} // if
	225
[81419b5]	226	if ( expraltp ) {
[e6955b1]	227	ResolvExpr::AlternativePrinter printer( cout );
[81419b5]	228	acceptAll( translationUnit, printer );
[b87a5ed]	229	return 0;
	230	} // if
	231
	232	if ( validp ) {
[1ab4ce2]	233	dump( translationUnit );
[b87a5ed]	234	return 0;
	235	} // if
	236
[81419b5]	237	OPTPRINT( "mutate" )
	238	ControlStruct::mutate( translationUnit );
[64adb03]	239	OPTPRINT( "Concurrency" )
	240	Concurrency::applyKeywords( translationUnit );
[71f4e4f]	241	OPTPRINT( "fixNames" )
[81419b5]	242	CodeGen::fixNames( translationUnit );
[f1e012b]	243	OPTPRINT( "tweakInit" )
[a0fdbd5]	244	InitTweak::genInit( translationUnit );
[bf32bb8]	245	OPTPRINT( "expandMemberTuples" );
	246	Tuples::expandMemberTuples( translationUnit );
[81419b5]	247	if ( libcfap ) {
	248	// generate the bodies of cfa library functions
	249	LibCfa::makeLibCfa( translationUnit );
[b87a5ed]	250	} // if
	251
[fa2de95]	252	if ( declstatsp ) {
	253	CodeTools::printDeclStats( translationUnit );
	254	deleteAll( translationUnit );
	255	return 0;
	256	}
	257
[de62360d]	258	if ( bresolvep ) {
[1ab4ce2]	259	dump( translationUnit );
[de62360d]	260	return 0;
	261	} // if
	262
[81419b5]	263	OPTPRINT( "resolve" )
[b87a5ed]	264	ResolvExpr::resolve( translationUnit );
[81419b5]	265	if ( exprp ) {
[1ab4ce2]	266	dump( translationUnit );
[ca1c11f]	267	return 0;
[926af74]	268	} // if
[81419b5]	269
[71f4e4f]	270	// fix ObjectDecl - replaces ConstructorInit nodes
[6cf27a07]	271	OPTPRINT( "fixInit" )
	272	InitTweak::fix( translationUnit, filename, libcfap \|\| treep );
[ca1c11f]	273	if ( ctorinitp ) {
	274	dump ( translationUnit );
	275	return 0;
[926af74]	276	} // if
[71f4e4f]	277
[141b786]	278	OPTPRINT( "expandUniqueExpr" ); // xxx - is this the right place for this? want to expand ASAP so that subsequent 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
	279	Tuples::expandUniqueExpr( translationUnit );
[626dbc10]	280
	281	OPTPRINT( "convertSpecializations" ) // needs to happen before tuple types are expanded
	282	GenPoly::convertSpecializations( translationUnit );
	283
[d9fa60a]	284	OPTPRINT( "expandTuples" ); // xxx - is this the right place for this?
	285	Tuples::expandTuples( translationUnit );
[626dbc10]	286	if ( tuplep ) {
	287	dump( translationUnit );
	288	return 0;
	289	}
[141b786]	290
[ea5daeb]	291	OPTPRINT("instantiateGenerics")
	292	GenPoly::instantiateGeneric( translationUnit );
[81419b5]	293	OPTPRINT( "copyParams" );
[b87a5ed]	294	GenPoly::copyParams( translationUnit );
[81419b5]	295	OPTPRINT( "convertLvalue" )
[b87a5ed]	296	GenPoly::convertLvalue( translationUnit );
[fea7ca7]	297
	298	if ( bboxp ) {
	299	dump( translationUnit );
	300	return 0;
[926af74]	301	} // if
[81419b5]	302	OPTPRINT( "box" )
[b87a5ed]	303	GenPoly::box( translationUnit );
[81419b5]	304
[2871210]	305	// print tree right before code generation
[81419b5]	306	if ( codegenp ) {
[1ab4ce2]	307	dump( translationUnit );
[81419b5]	308	return 0;
	309	} // if
[b87a5ed]	310
[13de47bc]	311	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
	312	output = new ofstream( argv[ optind ] );
	313	} // if
[0270824]	314
[35b1bf4]	315	CodeGen::generate( translationUnit, *output, ! noprotop, prettycodegenp );
[0270824]	316
[13de47bc]	317	CodeGen::FixMain::fix( *output, treep ? "../prelude/bootloader.c" : CFA_LIBDIR "/bootloader.c" );
[0270824]	318
[e6955b1]	319	if ( output != &cout ) {
[b87a5ed]	320	delete output;
	321	} // if
	322	} catch ( SemanticError &e ) {
	323	if ( errorp ) {
[e6955b1]	324	cerr << "---AST at error:---" << endl;
	325	dump( translationUnit, cerr );
	326	cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]	327	} // if
[e6955b1]	328	e.print( cerr );
	329	if ( output != &cout ) {
[b87a5ed]	330	delete output;
	331	} // if
	332	return 1;
	333	} catch ( UnimplementedError &e ) {
[e6955b1]	334	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
	335	if ( output != &cout ) {
[b87a5ed]	336	delete output;
	337	} // if
	338	return 1;
	339	} catch ( CompilerError &e ) {
[e6955b1]	340	cerr << "Compiler Error: " << e.get_what() << endl;
	341	cerr << "(please report bugs to " << endl;
	342	if ( output != &cout ) {
[b87a5ed]	343	delete output;
	344	} // if
	345	return 1;
	346	} // try
	347
[39786813]	348	deleteAll( translationUnit );
[b87a5ed]	349	return 0;
[d9a0e76]	350	} // main
[51b7345]	351
[cbaee0d]	352	void parse_cmdline( int argc, char * argv[], const char *& filename ) {
[41a7137]	353	enum { Ast, Bbox, Bresolver, CtorInitFix, DeclStats, Expr, ExprAlt, Grammar, LibCFA, Nopreamble, Parse, Prototypes, Resolver, Symbol, Tree, TupleExpansion, Validate, };
[0da3e2c]	354
	355	static struct option long_opts[] = {
	356	{ "ast", no_argument, 0, Ast },
	357	{ "before-box", no_argument, 0, Bbox },
	358	{ "before-resolver", no_argument, 0, Bresolver },
	359	{ "ctorinitfix", no_argument, 0, CtorInitFix },
[41a7137]	360	{ "decl-stats", no_argument, 0, DeclStats },
[0da3e2c]	361	{ "expr", no_argument, 0, Expr },
	362	{ "expralt", no_argument, 0, ExprAlt },
	363	{ "grammar", no_argument, 0, Grammar },
	364	{ "libcfa", no_argument, 0, LibCFA },
	365	{ "no-preamble", no_argument, 0, Nopreamble },
	366	{ "parse", no_argument, 0, Parse },
	367	{ "no-prototypes", no_argument, 0, Prototypes },
	368	{ "resolver", no_argument, 0, Resolver },
	369	{ "symbol", no_argument, 0, Symbol },
	370	{ "tree", no_argument, 0, Tree },
[626dbc10]	371	{ "tuple-expansion", no_argument, 0, TupleExpansion },
[0da3e2c]	372	{ "validate", no_argument, 0, Validate },
	373	{ 0, 0, 0, 0 }
	374	}; // long_opts
	375	int long_index;
	376
	377	opterr = 0; // (global) prevent getopt from printing error messages
	378
	379	int c;
[35b1bf4]	380	while ( (c = getopt_long( argc, argv, "abBcdefglmnpqrstTvyzZD:F:", long_opts, &long_index )) != -1 ) {
[0da3e2c]	381	switch ( c ) {
	382	case Ast:
	383	case 'a': // dump AST
	384	astp = true;
	385	break;
	386	case Bresolver:
	387	case 'b': // print before resolver steps
	388	bresolvep = true;
	389	break;
[626dbc10]	390	case 'B': // print before box steps
[0da3e2c]	391	bboxp = true;
	392	break;
	393	case CtorInitFix:
	394	case 'c':
	395	ctorinitp = true;
	396	break;
[41a7137]	397	case DeclStats:
	398	case 'd':
	399	declstatsp = true;
	400	break;
[0da3e2c]	401	case Expr:
	402	case 'e': // dump AST after expression analysis
	403	exprp = true;
	404	break;
	405	case ExprAlt:
	406	case 'f': // print alternatives for expressions
	407	expraltp = true;
	408	break;
	409	case Grammar:
	410	case 'g': // bison debugging info (grammar rules)
[926af74]	411	yydebug = true;
[0da3e2c]	412	break;
	413	case LibCFA:
	414	case 'l': // generate libcfa.c
	415	libcfap = true;
	416	break;
	417	case Nopreamble:
	418	case 'n': // do not read preamble
	419	nopreludep = true;
	420	break;
	421	case Prototypes:
	422	case 'p': // generate prototypes for preamble functions
	423	noprotop = true;
	424	break;
[3fe34ae]	425	case 'm': // don't replace the main
	426	nomainp = true;
	427	break;
[0da3e2c]	428	case Parse:
	429	case 'q': // dump parse tree
	430	parsep = true;
	431	break;
	432	case Resolver:
	433	case 'r': // print resolver steps
	434	resolvep = true;
	435	break;
	436	case Symbol:
	437	case 's': // print symbol table events
	438	symtabp = true;
	439	break;
	440	case Tree:
	441	case 't': // build in tree
	442	treep = true;
	443	break;
[626dbc10]	444	case TupleExpansion:
	445	case 'T': // print after tuple expansion
	446	tuplep = true;
	447	break;
[0da3e2c]	448	case 'v': // dump AST after decl validation pass
	449	validp = true;
	450	break;
	451	case 'y':
	452	errorp = true;
	453	break;
	454	case 'z':
	455	codegenp = true;
[35b1bf4]	456	case 'Z':
	457	prettycodegenp = true;
[0da3e2c]	458	break;
	459	case 'D': // ignore -Dxxx
	460	break;
	461	case 'F': // source file-name without suffix
	462	filename = optarg;
	463	break;
	464	case '?':
[3b8e52c]	465	assertf( false, "Unknown option: '%c'\n", (char)optopt );
[0da3e2c]	466	default:
	467	abort();
	468	} // switch
	469	} // while
	470	} // parse_cmdline
	471
[8b7ee09]	472	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]	473	extern int yyparse( void );
[cbaee0d]	474	extern FILE * yyin;
[0da3e2c]	475	extern int yylineno;
	476
[8b7ee09]	477	::linkage = linkage; // set globals
[0da3e2c]	478	yyin = input;
	479	yylineno = 1;
	480	typedefTable.enterScope();
	481	int parseStatus = yyparse();
[81419b5]	482
	483	fclose( input );
[0da3e2c]	484	if ( shouldExit \|\| parseStatus != 0 ) {
	485	exit( parseStatus );
[81419b5]	486	} // if
[0da3e2c]	487	} // parse
[81419b5]	488
[1ab4ce2]	489	static bool notPrelude( Declaration * decl ) {
	490	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]	491	} // notPrelude
[1ab4ce2]	492
[e6955b1]	493	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
	494	list< Declaration * > decls;
[926af74]	495
[1ab4ce2]	496	if ( noprotop ) {
[e6955b1]	497	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]	498	} else {
	499	decls = translationUnit;
[926af74]	500	} // if
[1ab4ce2]	501
[f77f12e2]	502	printAll( decls, out );
[7f5566b]	503	deleteAll( translationUnit );
[0da3e2c]	504	} // dump
[1ab4ce2]	505
[51b7345]	506	// Local Variables: //
[b87a5ed]	507	// tab-width: 4 //
	508	// mode: c++ //
	509	// compile-command: "make install" //
[51b7345]	510	// End: //

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