Context Navigation

source: src/main.cc @ 3fe34ae

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 3fe34ae was 3fe34ae, checked in by Thierry Delisle <tdelisle@…>, 7 years ago
Added bootloader.cf which contains the main that wraps the user main
Property mode set to `100644`
File size: 14.7 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
[0270824]	16	#include <memory>
[51b7345]	17	#include <iostream>
	18	#include <fstream>
[e6955b1]	19	#include <signal.h> // signal
	20	#include <getopt.h> // getopt
[0afffee]	21	#include <execinfo.h> // backtrace, backtrace_symbols
[e6955b1]	22	#include <cxxabi.h> // __cxa_demangle
[0afffee]	23	#include <cstring> // index
[e6955b1]	24
	25	using namespace std;
	26
[0da3e2c]	27	#include "Parser/lex.h"
	28	#include "Parser/parser.h"
	29	#include "Parser/TypedefTable.h"
[51b7345]	30	#include "GenPoly/Lvalue.h"
	31	#include "GenPoly/Specialize.h"
	32	#include "GenPoly/Box.h"
	33	#include "GenPoly/CopyParams.h"
[ea5daeb]	34	#include "GenPoly/InstantiateGeneric.h"
[51b7345]	35	#include "CodeGen/Generate.h"
	36	#include "CodeGen/FixNames.h"
	37	#include "ControlStruct/Mutate.h"
	38	#include "SymTab/Validate.h"
	39	#include "ResolvExpr/AlternativePrinter.h"
	40	#include "ResolvExpr/Resolver.h"
	41	#include "MakeLibCfa.h"
[a0fdbd5]	42	#include "InitTweak/GenInit.h"
[71f4e4f]	43	#include "InitTweak/FixInit.h"
[d3b7937]	44	#include "Common/UnimplementedError.h"
[51b7345]	45	#include "../config.h"
[6eb8948]	46	#include "Tuples/Tuples.h"
[51b7345]	47
	48	using namespace std;
	49
[e6955b1]	50	#define OPTPRINT(x) if ( errorp ) cerr << x << endl;
[81419b5]	51
[0da3e2c]	52
[8b7ee09]	53	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]	54	TypedefTable typedefTable;
[cbaee0d]	55	DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]	56
[926af74]	57	extern int yydebug; // set for -g flag (Grammar)
[b87a5ed]	58	bool
	59	astp = false,
[de62360d]	60	bresolvep = false,
[fea7ca7]	61	bboxp = false,
[ca1c11f]	62	ctorinitp = false,
[b87a5ed]	63	exprp = false,
	64	expraltp = false,
	65	libcfap = false,
[de62360d]	66	nopreludep = false,
[1ab4ce2]	67	noprotop = false,
[3fe34ae]	68	nomainp = false,
[de62360d]	69	parsep = false,
[b87a5ed]	70	resolvep = false, // used in AlternativeFinder
	71	symtabp = false,
[d3b7937]	72	treep = false,
[626dbc10]	73	tuplep = false,
[b87a5ed]	74	validp = false,
[de62360d]	75	errorp = false,
	76	codegenp = false;
[b87a5ed]	77
[926af74]	78	static void parse_cmdline( int argc, char argv[], const char & filename );
[8b7ee09]	79	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]	80	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
	81
[3fe34ae]	82	bool translation_unit_nomain = true;
[0270824]	83	std::unique_ptr<FunctionDecl> translation_unit_main_signature = nullptr;
	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
[3fe34ae]	161	translation_unit_nomain = 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 ] );
[d029162]	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
[3b8e52c]	180	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
[b87a5ed]	181	output = new ofstream( argv[ optind ] );
	182	} // if
[71f4e4f]	183
[159c62e]	184	// read in the builtins, extras, and the prelude
[de62360d]	185	if ( ! nopreludep ) { // include gcc builtins
[faf8857]	186	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[375a068]	187	FILE * builtins = fopen( libcfap \| treep ? "../prelude/builtins.cf" : CFA_LIBDIR "/builtins.cf", "r" );
[3b8e52c]	188	assertf( builtins, "cannot open builtins.cf\n" );
[81419b5]	189	parse( builtins, LinkageSpec::Compiler );
	190
[159c62e]	191	// read the extra prelude in, if not generating the cfa library
[375a068]	192	FILE * extras = fopen( libcfap \| treep ? "../prelude/extras.cf" : CFA_LIBDIR "/extras.cf", "r" );
[3b8e52c]	193	assertf( extras, "cannot open extras.cf\n" );
[159c62e]	194	parse( extras, LinkageSpec::C );
	195
[81419b5]	196	if ( ! libcfap ) {
[faf8857]	197	// read the prelude in, if not generating the cfa library
[375a068]	198	FILE * prelude = fopen( treep ? "../prelude/prelude.cf" : CFA_LIBDIR "/prelude.cf", "r" );
[3b8e52c]	199	assertf( prelude, "cannot open prelude.cf\n" );
[35304009]	200	parse( prelude, LinkageSpec::Intrinsic );
[b87a5ed]	201	} // if
	202	} // if
[81419b5]	203
[926af74]	204	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]	205
[b87a5ed]	206	if ( parsep ) {
[e6955b1]	207	parseTree->printList( cout );
[0da3e2c]	208	delete parseTree;
[b87a5ed]	209	return 0;
	210	} // if
	211
[0da3e2c]	212	buildList( parseTree, translationUnit );
	213	delete parseTree;
[cbaee0d]	214	parseTree = nullptr;
[b87a5ed]	215
	216	if ( astp ) {
[1ab4ce2]	217	dump( translationUnit );
[b87a5ed]	218	return 0;
	219	} // if
	220
[839ccbb]	221	// add the assignment statement after the initialization of a type parameter
[81419b5]	222	OPTPRINT( "validate" )
	223	SymTab::validate( translationUnit, symtabp );
	224	if ( symtabp ) {
[46f6134]	225	deleteAll( translationUnit );
[b87a5ed]	226	return 0;
	227	} // if
	228
[81419b5]	229	if ( expraltp ) {
[e6955b1]	230	ResolvExpr::AlternativePrinter printer( cout );
[81419b5]	231	acceptAll( translationUnit, printer );
[b87a5ed]	232	return 0;
	233	} // if
	234
	235	if ( validp ) {
[1ab4ce2]	236	dump( translationUnit );
[b87a5ed]	237	return 0;
	238	} // if
	239
[81419b5]	240	OPTPRINT( "mutate" )
	241	ControlStruct::mutate( translationUnit );
[71f4e4f]	242	OPTPRINT( "fixNames" )
[81419b5]	243	CodeGen::fixNames( translationUnit );
[f1e012b]	244	OPTPRINT( "tweakInit" )
[a0fdbd5]	245	InitTweak::genInit( translationUnit );
[bf32bb8]	246	OPTPRINT( "expandMemberTuples" );
	247	Tuples::expandMemberTuples( translationUnit );
[81419b5]	248	if ( libcfap ) {
	249	// generate the bodies of cfa library functions
	250	LibCfa::makeLibCfa( translationUnit );
[b87a5ed]	251	} // if
	252
[de62360d]	253	if ( bresolvep ) {
[1ab4ce2]	254	dump( translationUnit );
[de62360d]	255	return 0;
	256	} // if
	257
[81419b5]	258	OPTPRINT( "resolve" )
[b87a5ed]	259	ResolvExpr::resolve( translationUnit );
[81419b5]	260	if ( exprp ) {
[1ab4ce2]	261	dump( translationUnit );
[ca1c11f]	262	return 0;
[926af74]	263	} // if
[81419b5]	264
[71f4e4f]	265	// fix ObjectDecl - replaces ConstructorInit nodes
[6cf27a07]	266	OPTPRINT( "fixInit" )
	267	InitTweak::fix( translationUnit, filename, libcfap \|\| treep );
[ca1c11f]	268	if ( ctorinitp ) {
	269	dump ( translationUnit );
	270	return 0;
[926af74]	271	} // if
[71f4e4f]	272
[141b786]	273	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
	274	Tuples::expandUniqueExpr( translationUnit );
[626dbc10]	275
	276	OPTPRINT( "convertSpecializations" ) // needs to happen before tuple types are expanded
	277	GenPoly::convertSpecializations( translationUnit );
	278
[d9fa60a]	279	OPTPRINT( "expandTuples" ); // xxx - is this the right place for this?
	280	Tuples::expandTuples( translationUnit );
[626dbc10]	281	if ( tuplep ) {
	282	dump( translationUnit );
	283	return 0;
	284	}
[141b786]	285
[ea5daeb]	286	OPTPRINT("instantiateGenerics")
	287	GenPoly::instantiateGeneric( translationUnit );
[81419b5]	288	OPTPRINT( "copyParams" );
[b87a5ed]	289	GenPoly::copyParams( translationUnit );
[81419b5]	290	OPTPRINT( "convertLvalue" )
[b87a5ed]	291	GenPoly::convertLvalue( translationUnit );
[fea7ca7]	292
	293	if ( bboxp ) {
	294	dump( translationUnit );
	295	return 0;
[926af74]	296	} // if
[81419b5]	297	OPTPRINT( "box" )
[b87a5ed]	298	GenPoly::box( translationUnit );
[81419b5]	299
[2871210]	300	// print tree right before code generation
[81419b5]	301	if ( codegenp ) {
[1ab4ce2]	302	dump( translationUnit );
[81419b5]	303	return 0;
	304	} // if
[b87a5ed]	305
[1ab4ce2]	306	CodeGen::generate( translationUnit, *output, ! noprotop );
[b87a5ed]	307
[0270824]	308	if( translation_unit_main_signature ) {
	309	output << "int main(int argc, char* argv) { return ";
	310
	311	*output << translation_unit_main_signature->get_scopedMangleName() << "(";
	312	if(translation_unit_main_signature->get_functionType()->get_parameters().size() != 0){
	313	*output << "argc, argv";
	314	}
	315	*output << ");";
	316
	317	*output << " }\n";
	318	}
	319
[e6955b1]	320	if ( output != &cout ) {
[b87a5ed]	321	delete output;
	322	} // if
	323	} catch ( SemanticError &e ) {
	324	if ( errorp ) {
[e6955b1]	325	cerr << "---AST at error:---" << endl;
	326	dump( translationUnit, cerr );
	327	cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]	328	} // if
[e6955b1]	329	e.print( cerr );
	330	if ( output != &cout ) {
[b87a5ed]	331	delete output;
	332	} // if
	333	return 1;
	334	} catch ( UnimplementedError &e ) {
[e6955b1]	335	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
	336	if ( output != &cout ) {
[b87a5ed]	337	delete output;
	338	} // if
	339	return 1;
	340	} catch ( CompilerError &e ) {
[e6955b1]	341	cerr << "Compiler Error: " << e.get_what() << endl;
	342	cerr << "(please report bugs to " << endl;
	343	if ( output != &cout ) {
[b87a5ed]	344	delete output;
	345	} // if
	346	return 1;
	347	} // try
	348
[39786813]	349	deleteAll( translationUnit );
[b87a5ed]	350	return 0;
[d9a0e76]	351	} // main
[51b7345]	352
[cbaee0d]	353	void parse_cmdline( int argc, char * argv[], const char *& filename ) {
[626dbc10]	354	enum { Ast, Bbox, Bresolver, CtorInitFix, Expr, ExprAlt, Grammar, LibCFA, Nopreamble, Parse, Prototypes, Resolver, Symbol, Tree, TupleExpansion, Validate, };
[0da3e2c]	355
	356	static struct option long_opts[] = {
	357	{ "ast", no_argument, 0, Ast },
	358	{ "before-box", no_argument, 0, Bbox },
	359	{ "before-resolver", no_argument, 0, Bresolver },
	360	{ "ctorinitfix", no_argument, 0, CtorInitFix },
	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;
[3fe34ae]	380	while ( (c = getopt_long( argc, argv, "abBcefglmnpqrstTvyzD: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;
	397	case Expr:
	398	case 'e': // dump AST after expression analysis
	399	exprp = true;
	400	break;
	401	case ExprAlt:
	402	case 'f': // print alternatives for expressions
	403	expraltp = true;
	404	break;
	405	case Grammar:
	406	case 'g': // bison debugging info (grammar rules)
[926af74]	407	yydebug = true;
[0da3e2c]	408	break;
	409	case LibCFA:
	410	case 'l': // generate libcfa.c
	411	libcfap = true;
	412	break;
	413	case Nopreamble:
	414	case 'n': // do not read preamble
	415	nopreludep = true;
	416	break;
	417	case Prototypes:
	418	case 'p': // generate prototypes for preamble functions
	419	noprotop = true;
	420	break;
[3fe34ae]	421	case 'm': // don't replace the main
	422	nomainp = true;
	423	break;
[0da3e2c]	424	case Parse:
	425	case 'q': // dump parse tree
	426	parsep = true;
	427	break;
	428	case Resolver:
	429	case 'r': // print resolver steps
	430	resolvep = true;
	431	break;
	432	case Symbol:
	433	case 's': // print symbol table events
	434	symtabp = true;
	435	break;
	436	case Tree:
	437	case 't': // build in tree
	438	treep = true;
	439	break;
[626dbc10]	440	case TupleExpansion:
	441	case 'T': // print after tuple expansion
	442	tuplep = true;
	443	break;
[0da3e2c]	444	case 'v': // dump AST after decl validation pass
	445	validp = true;
	446	break;
	447	case 'y':
	448	errorp = true;
	449	break;
	450	case 'z':
	451	codegenp = true;
	452	break;
	453	case 'D': // ignore -Dxxx
	454	break;
	455	case 'F': // source file-name without suffix
	456	filename = optarg;
	457	break;
	458	case '?':
[3b8e52c]	459	assertf( false, "Unknown option: '%c'\n", (char)optopt );
[0da3e2c]	460	default:
	461	abort();
	462	} // switch
	463	} // while
	464	} // parse_cmdline
	465
[8b7ee09]	466	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]	467	extern int yyparse( void );
[cbaee0d]	468	extern FILE * yyin;
[0da3e2c]	469	extern int yylineno;
	470
[8b7ee09]	471	::linkage = linkage; // set globals
[0da3e2c]	472	yyin = input;
	473	yylineno = 1;
	474	typedefTable.enterScope();
	475	int parseStatus = yyparse();
[81419b5]	476
	477	fclose( input );
[0da3e2c]	478	if ( shouldExit \|\| parseStatus != 0 ) {
	479	exit( parseStatus );
[81419b5]	480	} // if
[0da3e2c]	481	} // parse
[81419b5]	482
[1ab4ce2]	483	static bool notPrelude( Declaration * decl ) {
	484	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]	485	} // notPrelude
[1ab4ce2]	486
[e6955b1]	487	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
	488	list< Declaration * > decls;
[926af74]	489
[1ab4ce2]	490	if ( noprotop ) {
[e6955b1]	491	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]	492	} else {
	493	decls = translationUnit;
[926af74]	494	} // if
[1ab4ce2]	495
[f77f12e2]	496	printAll( decls, out );
[7f5566b]	497	deleteAll( translationUnit );
[0da3e2c]	498	} // dump
[1ab4ce2]	499
[51b7345]	500	// Local Variables: //
[b87a5ed]	501	// tab-width: 4 //
	502	// mode: c++ //
	503	// compile-command: "make install" //
[51b7345]	504	// End: //

Note: See TracBrowser for help on using the repository browser.

Download in other formats: