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source: src/main.cc @ bf8da66

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 bf8da66 was 35b1bf4, checked in by Rob Schluntz <rschlunt@…>, 8 years ago
added pretty print flag, which currently just turns off name mangling in code gen
Property mode set to `100644`
File size: 14.8 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"
[51b7345]	34	#include "CodeGen/Generate.h"
	35	#include "CodeGen/FixNames.h"
[13de47bc]	36	#include "CodeGen/FixMain.h"
[41a7137]	37	#include "CodeTools/DeclStats.h"
[51b7345]	38	#include "ControlStruct/Mutate.h"
	39	#include "SymTab/Validate.h"
	40	#include "ResolvExpr/AlternativePrinter.h"
	41	#include "ResolvExpr/Resolver.h"
	42	#include "MakeLibCfa.h"
[a0fdbd5]	43	#include "InitTweak/GenInit.h"
[71f4e4f]	44	#include "InitTweak/FixInit.h"
[d3b7937]	45	#include "Common/UnimplementedError.h"
[51b7345]	46	#include "../config.h"
[6eb8948]	47	#include "Tuples/Tuples.h"
[51b7345]	48
	49	using namespace std;
	50
[e6955b1]	51	#define OPTPRINT(x) if ( errorp ) cerr << x << endl;
[81419b5]	52
[0da3e2c]	53
[8b7ee09]	54	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]	55	TypedefTable typedefTable;
[cbaee0d]	56	DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]	57
[926af74]	58	extern int yydebug; // set for -g flag (Grammar)
[b87a5ed]	59	bool
	60	astp = false,
[de62360d]	61	bresolvep = false,
[fea7ca7]	62	bboxp = false,
[ca1c11f]	63	ctorinitp = false,
[41a7137]	64	declstatsp = false,
[b87a5ed]	65	exprp = false,
	66	expraltp = false,
	67	libcfap = false,
[de62360d]	68	nopreludep = false,
[1ab4ce2]	69	noprotop = false,
[3fe34ae]	70	nomainp = false,
[de62360d]	71	parsep = false,
[b87a5ed]	72	resolvep = false, // used in AlternativeFinder
	73	symtabp = false,
[d3b7937]	74	treep = false,
[626dbc10]	75	tuplep = false,
[b87a5ed]	76	validp = false,
[de62360d]	77	errorp = false,
[35b1bf4]	78	codegenp = false,
	79	prettycodegenp = false;
[b87a5ed]	80
[926af74]	81	static void parse_cmdline( int argc, char argv[], const char & filename );
[8b7ee09]	82	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]	83	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
	84
[0afffee]	85	static void backtrace( int start ) { // skip first N stack frames
[e6955b1]	86	enum { Frames = 50 };
	87	void * array[Frames];
[0afffee]	88	int size = ::backtrace( array, Frames );
	89	char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
	90
	91	*index( messages[0], '(' ) = '\0'; // find executable name
	92	cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]	93
[b542bfb]	94	// skip last 2 stack frames after main
	95	for ( int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]	96	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
	97	for ( char p = messages[i]; p; ++p ) { // find parantheses and +offset
[0afffee]	98	if ( *p == '(' ) {
[46f6134]	99	mangled_name = p;
[0afffee]	100	} else if ( *p == '+' ) {
[e6955b1]	101	offset_begin = p;
[0afffee]	102	} else if ( *p == ')' ) {
[e6955b1]	103	offset_end = p;
	104	break;
	105	} // if
	106	} // for
	107
	108	// if line contains symbol, attempt to demangle
[b542bfb]	109	int frameNo = i - start;
[e6955b1]	110	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]	111	*mangled_name++ = '\0'; // delimit strings
[e6955b1]	112	*offset_begin++ = '\0';
	113	*offset_end++ = '\0';
	114
[0afffee]	115	int status;
[e6955b1]	116	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]	117	// bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]	118	if ( status == 0 ) { // demangling successful ?
[b542bfb]	119	cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]	120	<< real_name << "+" << offset_begin << offset_end << endl;
	121	} else { // otherwise, output mangled name
[b542bfb]	122	cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]	123	<< mangled_name << "(/unknown/)+" << offset_begin << offset_end << endl;
[e6955b1]	124	} // if
[0afffee]	125
[e6955b1]	126	free( real_name );
	127	} else { // otherwise, print the whole line
[b542bfb]	128	cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]	129	} // if
	130	} // for
[b542bfb]	131
[e6955b1]	132	free( messages );
[b542bfb]	133	} // backtrace
	134
	135	void sigSegvBusHandler( int sig_num ) {
	136	cerr << "CFA runtime error program cfa-cpp terminated with "
	137	<< (sig_num == SIGSEGV ? "segment fault" : "bus error")
[0afffee]	138	<< "." << endl;
[b542bfb]	139	backtrace( 2 ); // skip first 2 stack frames
[e6955b1]	140	exit( EXIT_FAILURE );
	141	} // sigSegvBusHandler
[0da3e2c]	142
[b542bfb]	143	void sigAbortHandler( int sig_num ) {
	144	backtrace( 6 ); // skip first 6 stack frames
	145	signal( SIGABRT, SIG_DFL); // reset default signal handler
	146	raise( SIGABRT ); // reraise SIGABRT
	147	} // sigAbortHandler
	148
	149
[cbaee0d]	150	int main( int argc, char * argv[] ) {
[3b8e52c]	151	FILE * input; // use FILE rather than istream because yyin is FILE
[e6955b1]	152	ostream *output = & cout;
[926af74]	153	const char *filename = nullptr;
[e6955b1]	154	list< Declaration * > translationUnit;
	155
	156	signal( SIGSEGV, sigSegvBusHandler );
	157	signal( SIGBUS, sigSegvBusHandler );
[b542bfb]	158	signal( SIGABRT, sigAbortHandler );
[b87a5ed]	159
[0da3e2c]	160	parse_cmdline( argc, argv, filename ); // process command-line arguments
[13de47bc]	161	CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]	162
	163	try {
[81419b5]	164	// choose to read the program from a file or stdin
[3b8e52c]	165	if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]	166	input = fopen( argv[ optind ], "r" );
[3b8e52c]	167	assertf( input, "cannot open %s\n", argv[ optind ] );
[d029162e]	168	// if running cfa-cpp directly, might forget to pass -F option (and really shouldn't have to)
[926af74]	169	if ( filename == nullptr ) filename = argv[ optind ];
[37024fd]	170	// prelude filename comes in differently
	171	if ( libcfap ) filename = "prelude.cf";
[b87a5ed]	172	optind += 1;
[3b8e52c]	173	} else { // no input file name
[b87a5ed]	174	input = stdin;
[2a7e29b]	175	// if running cfa-cpp directly, might forget to pass -F option. Since this takes from stdin, pass
	176	// a fake name along
[926af74]	177	if ( filename == nullptr ) filename = "stdin";
[b87a5ed]	178	} // if
	179
[159c62e]	180	// read in the builtins, extras, and the prelude
[de62360d]	181	if ( ! nopreludep ) { // include gcc builtins
[faf8857]	182	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[375a068]	183	FILE * builtins = fopen( libcfap \| treep ? "../prelude/builtins.cf" : CFA_LIBDIR "/builtins.cf", "r" );
[3b8e52c]	184	assertf( builtins, "cannot open builtins.cf\n" );
[81419b5]	185	parse( builtins, LinkageSpec::Compiler );
	186
[159c62e]	187	// read the extra prelude in, if not generating the cfa library
[375a068]	188	FILE * extras = fopen( libcfap \| treep ? "../prelude/extras.cf" : CFA_LIBDIR "/extras.cf", "r" );
[3b8e52c]	189	assertf( extras, "cannot open extras.cf\n" );
[159c62e]	190	parse( extras, LinkageSpec::C );
	191
[81419b5]	192	if ( ! libcfap ) {
[faf8857]	193	// read the prelude in, if not generating the cfa library
[375a068]	194	FILE * prelude = fopen( treep ? "../prelude/prelude.cf" : CFA_LIBDIR "/prelude.cf", "r" );
[3b8e52c]	195	assertf( prelude, "cannot open prelude.cf\n" );
[35304009]	196	parse( prelude, LinkageSpec::Intrinsic );
[b87a5ed]	197	} // if
	198	} // if
[81419b5]	199
[926af74]	200	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]	201
[b87a5ed]	202	if ( parsep ) {
[e6955b1]	203	parseTree->printList( cout );
[0da3e2c]	204	delete parseTree;
[b87a5ed]	205	return 0;
	206	} // if
	207
[0da3e2c]	208	buildList( parseTree, translationUnit );
	209	delete parseTree;
[cbaee0d]	210	parseTree = nullptr;
[b87a5ed]	211
	212	if ( astp ) {
[1ab4ce2]	213	dump( translationUnit );
[b87a5ed]	214	return 0;
	215	} // if
	216
[839ccbb]	217	// add the assignment statement after the initialization of a type parameter
[81419b5]	218	OPTPRINT( "validate" )
	219	SymTab::validate( translationUnit, symtabp );
	220	if ( symtabp ) {
[46f6134]	221	deleteAll( translationUnit );
[b87a5ed]	222	return 0;
	223	} // if
	224
[81419b5]	225	if ( expraltp ) {
[e6955b1]	226	ResolvExpr::AlternativePrinter printer( cout );
[81419b5]	227	acceptAll( translationUnit, printer );
[b87a5ed]	228	return 0;
	229	} // if
	230
	231	if ( validp ) {
[1ab4ce2]	232	dump( translationUnit );
[b87a5ed]	233	return 0;
	234	} // if
	235
[81419b5]	236	OPTPRINT( "mutate" )
	237	ControlStruct::mutate( translationUnit );
[71f4e4f]	238	OPTPRINT( "fixNames" )
[81419b5]	239	CodeGen::fixNames( translationUnit );
[f1e012b]	240	OPTPRINT( "tweakInit" )
[a0fdbd5]	241	InitTweak::genInit( translationUnit );
[bf32bb8]	242	OPTPRINT( "expandMemberTuples" );
	243	Tuples::expandMemberTuples( translationUnit );
[81419b5]	244	if ( libcfap ) {
	245	// generate the bodies of cfa library functions
	246	LibCfa::makeLibCfa( translationUnit );
[b87a5ed]	247	} // if
	248
[fa2de95]	249	if ( declstatsp ) {
	250	CodeTools::printDeclStats( translationUnit );
	251	deleteAll( translationUnit );
	252	return 0;
	253	}
	254
[de62360d]	255	if ( bresolvep ) {
[1ab4ce2]	256	dump( translationUnit );
[de62360d]	257	return 0;
	258	} // if
	259
[81419b5]	260	OPTPRINT( "resolve" )
[b87a5ed]	261	ResolvExpr::resolve( translationUnit );
[81419b5]	262	if ( exprp ) {
[1ab4ce2]	263	dump( translationUnit );
[ca1c11f]	264	return 0;
[926af74]	265	} // if
[81419b5]	266
[71f4e4f]	267	// fix ObjectDecl - replaces ConstructorInit nodes
[6cf27a07]	268	OPTPRINT( "fixInit" )
	269	InitTweak::fix( translationUnit, filename, libcfap \|\| treep );
[ca1c11f]	270	if ( ctorinitp ) {
	271	dump ( translationUnit );
	272	return 0;
[926af74]	273	} // if
[71f4e4f]	274
[141b786]	275	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
	276	Tuples::expandUniqueExpr( translationUnit );
[626dbc10]	277
	278	OPTPRINT( "convertSpecializations" ) // needs to happen before tuple types are expanded
	279	GenPoly::convertSpecializations( translationUnit );
	280
[d9fa60a]	281	OPTPRINT( "expandTuples" ); // xxx - is this the right place for this?
	282	Tuples::expandTuples( translationUnit );
[626dbc10]	283	if ( tuplep ) {
	284	dump( translationUnit );
	285	return 0;
	286	}
[141b786]	287
[ea5daeb]	288	OPTPRINT("instantiateGenerics")
	289	GenPoly::instantiateGeneric( translationUnit );
[81419b5]	290	OPTPRINT( "copyParams" );
[b87a5ed]	291	GenPoly::copyParams( translationUnit );
[81419b5]	292	OPTPRINT( "convertLvalue" )
[b87a5ed]	293	GenPoly::convertLvalue( translationUnit );
[fea7ca7]	294
	295	if ( bboxp ) {
	296	dump( translationUnit );
	297	return 0;
[926af74]	298	} // if
[81419b5]	299	OPTPRINT( "box" )
[b87a5ed]	300	GenPoly::box( translationUnit );
[81419b5]	301
[2871210]	302	// print tree right before code generation
[81419b5]	303	if ( codegenp ) {
[1ab4ce2]	304	dump( translationUnit );
[81419b5]	305	return 0;
	306	} // if
[b87a5ed]	307
[13de47bc]	308	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
	309	output = new ofstream( argv[ optind ] );
	310	} // if
[0270824]	311
[35b1bf4]	312	CodeGen::generate( translationUnit, *output, ! noprotop, prettycodegenp );
[0270824]	313
[13de47bc]	314	CodeGen::FixMain::fix( *output, treep ? "../prelude/bootloader.c" : CFA_LIBDIR "/bootloader.c" );
[0270824]	315
[e6955b1]	316	if ( output != &cout ) {
[b87a5ed]	317	delete output;
	318	} // if
	319	} catch ( SemanticError &e ) {
	320	if ( errorp ) {
[e6955b1]	321	cerr << "---AST at error:---" << endl;
	322	dump( translationUnit, cerr );
	323	cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]	324	} // if
[e6955b1]	325	e.print( cerr );
	326	if ( output != &cout ) {
[b87a5ed]	327	delete output;
	328	} // if
	329	return 1;
	330	} catch ( UnimplementedError &e ) {
[e6955b1]	331	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
	332	if ( output != &cout ) {
[b87a5ed]	333	delete output;
	334	} // if
	335	return 1;
	336	} catch ( CompilerError &e ) {
[e6955b1]	337	cerr << "Compiler Error: " << e.get_what() << endl;
	338	cerr << "(please report bugs to " << endl;
	339	if ( output != &cout ) {
[b87a5ed]	340	delete output;
	341	} // if
	342	return 1;
	343	} // try
	344
[39786813]	345	deleteAll( translationUnit );
[b87a5ed]	346	return 0;
[d9a0e76]	347	} // main
[51b7345]	348
[cbaee0d]	349	void parse_cmdline( int argc, char * argv[], const char *& filename ) {
[41a7137]	350	enum { Ast, Bbox, Bresolver, CtorInitFix, DeclStats, Expr, ExprAlt, Grammar, LibCFA, Nopreamble, Parse, Prototypes, Resolver, Symbol, Tree, TupleExpansion, Validate, };
[0da3e2c]	351
	352	static struct option long_opts[] = {
	353	{ "ast", no_argument, 0, Ast },
	354	{ "before-box", no_argument, 0, Bbox },
	355	{ "before-resolver", no_argument, 0, Bresolver },
	356	{ "ctorinitfix", no_argument, 0, CtorInitFix },
[41a7137]	357	{ "decl-stats", no_argument, 0, DeclStats },
[0da3e2c]	358	{ "expr", no_argument, 0, Expr },
	359	{ "expralt", no_argument, 0, ExprAlt },
	360	{ "grammar", no_argument, 0, Grammar },
	361	{ "libcfa", no_argument, 0, LibCFA },
	362	{ "no-preamble", no_argument, 0, Nopreamble },
	363	{ "parse", no_argument, 0, Parse },
	364	{ "no-prototypes", no_argument, 0, Prototypes },
	365	{ "resolver", no_argument, 0, Resolver },
	366	{ "symbol", no_argument, 0, Symbol },
	367	{ "tree", no_argument, 0, Tree },
[626dbc10]	368	{ "tuple-expansion", no_argument, 0, TupleExpansion },
[0da3e2c]	369	{ "validate", no_argument, 0, Validate },
	370	{ 0, 0, 0, 0 }
	371	}; // long_opts
	372	int long_index;
	373
	374	opterr = 0; // (global) prevent getopt from printing error messages
	375
	376	int c;
[35b1bf4]	377	while ( (c = getopt_long( argc, argv, "abBcdefglmnpqrstTvyzZD:F:", long_opts, &long_index )) != -1 ) {
[0da3e2c]	378	switch ( c ) {
	379	case Ast:
	380	case 'a': // dump AST
	381	astp = true;
	382	break;
	383	case Bresolver:
	384	case 'b': // print before resolver steps
	385	bresolvep = true;
	386	break;
[626dbc10]	387	case 'B': // print before box steps
[0da3e2c]	388	bboxp = true;
	389	break;
	390	case CtorInitFix:
	391	case 'c':
	392	ctorinitp = true;
	393	break;
[41a7137]	394	case DeclStats:
	395	case 'd':
	396	declstatsp = true;
	397	break;
[0da3e2c]	398	case Expr:
	399	case 'e': // dump AST after expression analysis
	400	exprp = true;
	401	break;
	402	case ExprAlt:
	403	case 'f': // print alternatives for expressions
	404	expraltp = true;
	405	break;
	406	case Grammar:
	407	case 'g': // bison debugging info (grammar rules)
[926af74]	408	yydebug = true;
[0da3e2c]	409	break;
	410	case LibCFA:
	411	case 'l': // generate libcfa.c
	412	libcfap = true;
	413	break;
	414	case Nopreamble:
	415	case 'n': // do not read preamble
	416	nopreludep = true;
	417	break;
	418	case Prototypes:
	419	case 'p': // generate prototypes for preamble functions
	420	noprotop = true;
	421	break;
[3fe34ae]	422	case 'm': // don't replace the main
	423	nomainp = true;
	424	break;
[0da3e2c]	425	case Parse:
	426	case 'q': // dump parse tree
	427	parsep = true;
	428	break;
	429	case Resolver:
	430	case 'r': // print resolver steps
	431	resolvep = true;
	432	break;
	433	case Symbol:
	434	case 's': // print symbol table events
	435	symtabp = true;
	436	break;
	437	case Tree:
	438	case 't': // build in tree
	439	treep = true;
	440	break;
[626dbc10]	441	case TupleExpansion:
	442	case 'T': // print after tuple expansion
	443	tuplep = true;
	444	break;
[0da3e2c]	445	case 'v': // dump AST after decl validation pass
	446	validp = true;
	447	break;
	448	case 'y':
	449	errorp = true;
	450	break;
	451	case 'z':
	452	codegenp = true;
[35b1bf4]	453	case 'Z':
	454	prettycodegenp = true;
[0da3e2c]	455	break;
	456	case 'D': // ignore -Dxxx
	457	break;
	458	case 'F': // source file-name without suffix
	459	filename = optarg;
	460	break;
	461	case '?':
[3b8e52c]	462	assertf( false, "Unknown option: '%c'\n", (char)optopt );
[0da3e2c]	463	default:
	464	abort();
	465	} // switch
	466	} // while
	467	} // parse_cmdline
	468
[8b7ee09]	469	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]	470	extern int yyparse( void );
[cbaee0d]	471	extern FILE * yyin;
[0da3e2c]	472	extern int yylineno;
	473
[8b7ee09]	474	::linkage = linkage; // set globals
[0da3e2c]	475	yyin = input;
	476	yylineno = 1;
	477	typedefTable.enterScope();
	478	int parseStatus = yyparse();
[81419b5]	479
	480	fclose( input );
[0da3e2c]	481	if ( shouldExit \|\| parseStatus != 0 ) {
	482	exit( parseStatus );
[81419b5]	483	} // if
[0da3e2c]	484	} // parse
[81419b5]	485
[1ab4ce2]	486	static bool notPrelude( Declaration * decl ) {
	487	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]	488	} // notPrelude
[1ab4ce2]	489
[e6955b1]	490	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
	491	list< Declaration * > decls;
[926af74]	492
[1ab4ce2]	493	if ( noprotop ) {
[e6955b1]	494	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]	495	} else {
	496	decls = translationUnit;
[926af74]	497	} // if
[1ab4ce2]	498
[f77f12e2]	499	printAll( decls, out );
[7f5566b]	500	deleteAll( translationUnit );
[0da3e2c]	501	} // dump
[1ab4ce2]	502
[51b7345]	503	// Local Variables: //
[b87a5ed]	504	// tab-width: 4 //
	505	// mode: c++ //
	506	// compile-command: "make install" //
[51b7345]	507	// End: //

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