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source: driver/cfa.cc @ b2a37b0

ADTarm-ehast-experimentalenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprpthread-emulationqualifiedEnum

Last change on this file since b2a37b0 was a539fc3, checked in by Thierry Delisle <tdelisle@…>, 5 years ago
Merge branch 'master' into distcc
Property mode set to `100644`
File size: 16.7 KB

Line
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	//
7	// cfa.cc --
8	//
9	// Author : Peter A. Buhr
10	// Created On : Tue Aug 20 13:44:49 2002
11	// Last Modified By : Peter A. Buhr
12	// Last Modified On : Tue Sep 10 17:00:15 2019
13	// Update Count : 420
14	//
15
16	#include <iostream>
17	#include <cstdio> // perror
18	#include <cstdlib> // putenv, exit
19	#include <unistd.h> // execvp
20	#include <string> // STL version
21	#include <string.h> // strcmp
22	#include <algorithm> // find
23
24	#include <sys/types.h>
25	#include <sys/stat.h>
26
27	#include "Common/SemanticError.h"
28	#include "config.h" // configure info
29
30	using std::cerr;
31	using std::endl;
32	using std::string;
33	using std::to_string;
34
35	// #define __DEBUG_H__
36
37	static string __CFA_FLAGPREFIX__( "__CFA_FLAG" ); // "N__=" suffix
38
39	void Putenv( char * argv[], string arg ) {
40	// environment variables must have unique names
41	static int flags = 0;
42
43	if ( putenv( (char )( new string( string( __CFA_FLAGPREFIX__ + to_string( flags++ ) + "__=" ) + arg ) ).c_str() ) ) {
44	cerr << argv[0] << " error, cannot set environment variable." << endl;
45	exit( EXIT_FAILURE );
46	} // if
47	} // Putenv
48
49	// check if string has prefix
50	bool prefix( const string & arg, const string & pre ) {
51	return arg.substr( 0, pre.size() ) == pre;
52	} // prefix
53
54	inline bool ends_with(const string & str, const string & sfix) {
55	if (sfix.size() > str.size()) return false;
56	return std::equal(str.rbegin(), str.rbegin() + sfix.size(), sfix.rbegin(), sfix.rend());
57	}
58
59	bool suffix( const string & arg ) { // check if string has suffix
60	enum { NumSuffixes = 3 };
61	static const string suffixes[NumSuffixes] = { "cfa", "hfa", "ifa" };
62
63	size_t dot = arg.find_last_of( "." );
64	if ( dot == string::npos ) return false;
65	const string * end = suffixes + NumSuffixes;
66	return std::find( suffixes, end, arg.substr( dot + 1 ) ) != end;
67	} // suffix
68
69
70	static inline bool dirExists( const string & path ) { // check if directory exists
71	struct stat info;
72	if ( stat( path.c_str(), &info ) != 0 ) return false;
73	return (info.st_mode & S_IFDIR) != 0;
74	} // dirExists
75
76	static inline string dir(const string & path) {
77	return path.substr(0, path.find_last_of('/'));
78	}
79
80
81	#define xstr(s) str(s)
82	#define str(s) #s
83
84	int main( int argc, char * argv[] ) {
85	string Version( CFA_VERSION_LONG ); // current version number from CONFIG
86	string Major( xstr( CFA_VERSION_MAJOR ) ), Minor( xstr( CFA_VERSION_MINOR ) ), Patch( xstr( CFA_VERSION_PATCH ) );
87
88	string installincdir( CFA_INCDIR ); // fixed location of include files
89	string installlibdir( CFA_LIBDIR ); // fixed location of cc1 and cfa-cpp commands when installed
90	string srcdriverdir ( TOP_BUILDDIR "driver"); // fixed location of cc1 and cfa-cpp commands when in tree
91
92	string heading; // banner printed at start of cfa compilation
93	string arg; // current command-line argument during command-line parsing
94	string bprefix; // path where gcc looks for compiler steps
95	string langstd; // language standard
96
97	string compiler_path( CFA_BACKEND_CC ); // path/name of C compiler
98	string compiler_name; // name of C compiler
99
100	bool x_flag = false; // -x flag
101	bool nonoptarg = false; // no non-option arguments specified, i.e., no file names
102	bool link = true; // link stage occurring
103	bool verbose = false; // -v flag
104	bool quiet = false; // -quiet flag
105	bool debug = true; // -debug flag
106	bool nolib = false; // -nolib flag
107	bool help = false; // -help flag
108	bool CFA_flag = false; // -CFA flag
109	bool cpp_flag = false; // -E or -M flag, preprocessor only
110	bool std_flag = false; // -std= flag
111	bool noincstd_flag = false; // -no-include-stdhdr= flag
112	bool debugging __attribute(( unused )) = false; // -g flag
113	bool m32 = false; // -m32 flag
114	bool m64 = false; // -m64 flag
115	bool intree = false; // build in tree
116	bool compiling_libs = false;
117	bool disttree = false;
118	int o_file = 0; // -o filename position
119
120	const char *args[argc + 100]; // cfa command line values, plus some space for additional flags
121	int sargs = 1; // starting location for arguments in args list
122	int nargs = sargs; // number of arguments in args list; 0 => command name
123
124	const char *libs[argc + 20]; // non-user libraries must come separately, plus some added libraries and flags
125	int nlibs = 0;
126
127	#ifdef __DEBUG_H__
128	cerr << "CFA:" << endl;
129	for ( int i = 1; i < argc; i += 1 ) {
130	cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
131	} // for
132	#endif // __DEBUG_H__
133
134	// process command-line arguments
135
136	for ( int i = 1; i < argc; i += 1 ) {
137	arg = argv[i]; // convert to string value
138	if ( prefix( arg, "-" ) ) {
139	// pass through arguments
140
141	if ( arg == "-Xlinker" \|\| arg == "-o" ) {
142	args[nargs++] = argv[i]; // pass argument along
143	i += 1;
144	if ( i == argc ) continue; // next argument available ?
145	args[nargs++] = argv[i]; // pass argument along
146	if ( arg == "-o" ) o_file = i; // remember file
147	} else if ( arg == "-XCFA" ) { // CFA pass through
148	i += 1;
149	Putenv( argv, argv[i] );
150
151	// CFA specific arguments
152
153	} else if ( arg == "-CFA" ) {
154	CFA_flag = true; // strip the -CFA flag
155	link = false;
156	args[nargs++] = "-fsyntax-only"; // stop after stage 2
157	} else if ( arg == "-debug" ) {
158	debug = true; // strip the debug flag
159	} else if ( arg == "-nodebug" ) {
160	debug = false; // strip the nodebug flag
161	} else if ( arg == "-nolib" ) {
162	nolib = true; // strip the nodebug flag
163	} else if ( arg == "-quiet" ) {
164	quiet = true; // strip the quiet flag
165	} else if ( arg == "-noquiet" ) {
166	quiet = false; // strip the noquiet flag
167	} else if ( arg == "-help" ) {
168	help = true; // strip the help flag
169	} else if ( arg == "-nohelp" ) {
170	help = false; // strip the nohelp flag
171	} else if ( arg == "-no-include-stdhdr" ) {
172	noincstd_flag = true; // strip the no-include-stdhdr flag
173	} else if ( arg == "-in-tree" ) {
174	intree = true;
175	} else if ( arg == "-dist-tree" ) {
176	disttree = true;
177	} else if ( arg == "-cfalib") {
178	compiling_libs = true;
179	} else if ( arg == "-compiler" ) {
180	// use the user specified compiler
181	i += 1;
182	if ( i == argc ) continue; // next argument available ?
183	compiler_path = argv[i];
184	Putenv( argv, arg + "=" + argv[i] );
185
186	// C specific arguments
187
188	} else if ( arg == "-v" ) {
189	verbose = true; // verbosity required
190	args[nargs++] = argv[i]; // pass argument along
191	} else if ( arg == "-g" ) {
192	debugging = true; // symbolic debugging required
193	args[nargs++] = argv[i]; // pass argument along
194	} else if ( arg == "-save-temps" ) {
195	args[nargs++] = argv[i]; // pass argument along
196	Putenv( argv, arg ); // save cfa-cpp output
197	} else if ( prefix( arg, "-x" ) ) { // file suffix ?
198	string lang;
199	args[nargs++] = argv[i]; // pass argument along
200	if ( arg.length() == 2 ) { // separate argument ?
201	i += 1;
202	if ( i == argc ) continue; // next argument available ?
203	lang = argv[i];
204	args[nargs++] = argv[i]; // pass argument along
205	} else {
206	lang = arg.substr( 2 );
207	} // if
208	x_flag = lang != "none";
209	} else if ( prefix( arg, "-std=" ) \|\| prefix( arg, "--std=" ) ) {
210	std_flag = true; // -std=XX provided
211	args[nargs++] = argv[i]; // pass argument along
212	} else if ( arg == "-w" ) {
213	args[nargs++] = argv[i]; // pass argument along
214	Putenv( argv, arg );
215	} else if ( prefix( arg, "-W" ) ) { // check before next tests
216	if ( arg == "-Werror" \|\| arg == "-Wall" ) {
217	args[nargs++] = argv[i]; // pass argument along
218	Putenv( argv, argv[i] );
219	} else {
220	unsigned int adv = prefix( arg, "-Wno-" ) ? 5 : 2;
221	args[nargs] = argv[i]; // conditionally pass argument along
222	const char * warning = argv[i] + adv; // extract warning
223	if ( SemanticWarning_Exist( warning ) ) { // replace the argument for cfa-cpp
224	Putenv( argv, arg );
225	} // if
226	nargs += 1;
227	} // if
228	} else if ( prefix( arg, "-B" ) ) {
229	bprefix = arg.substr(2); // strip the -B flag
230	} else if ( arg == "-c" \|\| arg == "-S" \|\| arg == "-E" \|\| arg == "-M" \|\| arg == "-MM" ) {
231	args[nargs++] = argv[i]; // pass argument along
232	if ( arg == "-E" \|\| arg == "-M" \|\| arg == "-MM" ) {
233	cpp_flag = true; // cpp only
234	} // if
235	link = false; // no linkage required
236	} else if ( arg[1] == 'l' ) {
237	// if the user specifies a library, load it after user code
238	libs[nlibs++] = argv[i];
239	} else if ( arg == "-m32" ) {
240	m32 = true;
241	m64 = false;
242	args[nargs++] = argv[i];
243	} else if ( arg == "-m64" ) {
244	m64 = true;
245	m32 = false;
246	args[nargs++] = argv[i];
247	} else {
248	// concatenate any other arguments
249	args[nargs++] = argv[i];
250	} // if
251	} else {
252	bool cfa = suffix( arg ); // check suffix
253	if ( ! x_flag && cfa ) { // no explicit suffix and cfa suffix ?
254	args[nargs++] = "-x";
255	args[nargs++] = "c";
256	} // if
257	args[nargs++] = argv[i]; // concatenate files
258	if ( ! x_flag && cfa ) { // no explicit suffix and cfa suffix ?
259	args[nargs++] = "-x";
260	args[nargs++] = "none";
261	} // if
262	nonoptarg = true;
263	} // if
264	} // for
265
266	#ifdef __x86_64__
267	args[nargs++] = "-mcx16"; // allow double-wide CAA
268	#endif // __x86_64__
269
270	#ifdef __DEBUG_H__
271	cerr << "args:";
272	for ( int i = 1; i < nargs; i += 1 ) {
273	cerr << " " << args[i];
274	} // for
275	cerr << endl;
276	#endif // __DEBUG_H__
277
278	// -E flag stops at cc1 stage 1, so cfa-cpp in cc1 stage 2 is never executed.
279	if ( cpp_flag && CFA_flag ) {
280	CFA_flag = false;
281	cerr << argv[0] << " warning, both -E and -CFA flags specified, using -E and ignoring -CFA." << endl;
282	} // if
283
284	// add the CFA include-library paths, which allow direct access to header files without directory qualification
285	if ( ! intree ) {
286	args[nargs++] = "-I" CFA_INCDIR;
287	if ( ! noincstd_flag ) { // do not use during build
288	args[nargs++] = "-I" CFA_INCDIR "stdhdr";
289	} // if
290	args[nargs++] = "-I" CFA_INCDIR "concurrency";
291	args[nargs++] = "-I" CFA_INCDIR "containers";
292	} else {
293	args[nargs++] = "-I" TOP_SRCDIR "libcfa/src";
294	if ( ! noincstd_flag ) { // do not use during build
295	args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/stdhdr";
296	} // if
297	args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/concurrency";
298	args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/containers";
299	} // if
300
301	// add stdbool to get defines for bool/true/false
302	args[nargs++] = "-imacros";
303	args[nargs++] = "stdbool.h";
304
305	string libbase;
306	if ( ! intree ) {
307	libbase = CFA_LIBDIR;
308	} else {
309	libbase = TOP_BUILDDIR "libcfa/";
310	} // if
311
312	if( compiling_libs ) {
313	Putenv( argv, "-t" );
314	} // if
315
316	string arch( m32 ? CFA_32_CPU : (m64 ? CFA_64_CPU : CFA_DEFAULT_CPU) );
317	if ( ! m32 && ! m64 ) {
318	if ( arch == "x86" ) {
319	args[nargs++] = "-m32";
320	} else if ( arch == "x64" ) {
321	args[nargs++] = "-m64";
322	} // if
323	} // if
324
325	const char * config = nolib ? "nolib" : (debug ? "debug": "nodebug");
326	string libdir = libbase + arch + "-" + config;
327
328	if (!disttree) {
329	if ( ! nolib && ! dirExists( libdir ) ) {
330	cerr << argv[0] << " internal error, configuration " << config << " not installed." << endl;
331	cerr << "Was looking for " << libdir << endl;
332	for(int i = 1; i < argc; i++) {
333	cerr << argv[i] << " ";
334	}
335	cerr << endl;
336	libdir = libbase + arch + "-" + "nolib";
337	} // if
338
339	if ( ! dirExists( libdir ) ) {
340	cerr << argv[0] << " internal error, cannot find prelude directory." << endl;
341	cerr << "Was looking for " << libdir << endl;
342	exit( EXIT_FAILURE );
343	} // if
344	} // if
345
346	if(disttree) {
347	Putenv( argv, "--prelude-dir=" + dir(argv[0]) );
348	} else if(intree) {
349	Putenv( argv, "--prelude-dir=" + libdir + "/prelude" );
350	} else {
351	Putenv( argv, "--prelude-dir=" + libdir );
352	}
353
354	for ( int i = 0; i < nlibs; i += 1 ) { // copy non-user libraries after all user libraries
355	args[nargs++] = libs[i];
356	} // for
357
358	if ( link ) {
359	args[nargs++] = "-Xlinker";
360	args[nargs++] = "--undefined=__cfaabi_dbg_bits_write";
361	args[nargs++] = "-Xlinker";
362	args[nargs++] = "--undefined=__cfaabi_interpose_startup";
363	args[nargs++] = "-Xlinker";
364	args[nargs++] = "--undefined=__cfaabi_appready_startup";
365
366	// include the cfa library in case it is needed
367	args[nargs++] = ( *new string( string("-L" ) + libdir + (intree ? "/src/.libs" : "")) ).c_str();
368	args[nargs++] = ( *new string( string("-Wl,-rpath," ) + libdir + (intree ? "/src/.libs" : "")) ).c_str();
369	args[nargs++] = "-Wl,--push-state,--as-needed";
370	args[nargs++] = "-lcfathread";
371	args[nargs++] = "-Wl,--pop-state";
372	args[nargs++] = "-lcfa";
373	args[nargs++] = "-lpthread";
374	args[nargs++] = "-ldl";
375	args[nargs++] = "-lrt";
376	args[nargs++] = "-lm";
377	} // if
378
379	args[nargs++] = "-fexceptions"; // add exception flags (unconditionally)
380
381	// add flags based on the type of compile
382
383	args[nargs++] = ( *new string( string("-D__CFA_MAJOR__=") + Major ) ).c_str();
384	args[nargs++] = ( *new string( string("-D__CFA_MINOR__=") + Minor ) ).c_str();
385	args[nargs++] = ( *new string( string("-D__CFA_PATCH__=") + Patch ) ).c_str();
386	args[nargs++] = "-D__CFA__";
387	args[nargs++] = "-D__CFORALL__";
388	args[nargs++] = "-D__cforall";
389
390	if ( cpp_flag ) {
391	args[nargs++] = "-D__CPP__";
392	} // if
393
394	if ( CFA_flag ) {
395	Putenv( argv, "-N" );
396	Putenv( argv, "-CFA" );
397	// -CFA implies cc1 stage 2, but gcc does not pass the -o file to this stage because it believe the file is for
398	// the linker. Hence, the -o file is explicit passed to cc1 stage 2 and used as cfa-cpp's output file.
399	if ( o_file ) Putenv( argv, string( "-o=" ) + argv[o_file] );
400	} else {
401	Putenv( argv, "-L" );
402	} // if
403
404	if ( debug ) {
405	heading += " (debug)";
406	args[nargs++] = "-D__CFA_DEBUG__";
407	} else {
408	heading += " (no debug)";
409	} // if
410
411	if ( bprefix.length() == 0 ) {
412	if(disttree) {
413	bprefix = dir(argv[0]);
414	} else if(intree) {
415	bprefix = srcdriverdir;
416	} else {
417	bprefix = installlibdir;
418	}
419	if ( bprefix[bprefix.length() - 1] != '/' ) bprefix += '/';
420	Putenv( argv, string("-B=") + bprefix );
421	} // if
422
423	args[nargs++] = "-Xlinker"; // used by backtrace
424	args[nargs++] = "-export-dynamic";
425
426	// execute the compilation command
427
428	args[0] = compiler_path.c_str(); // set compiler command for exec
429	// find actual name of the compiler independent of the path to it
430	int p = compiler_path.find_last_of( '/' ); // scan r -> l for first '/'
431	if ( p == -1 ) {
432	compiler_name = compiler_path;
433	} else {
434	compiler_name = *new string( compiler_path.substr( p + 1 ) );
435	} // if
436
437	if ( prefix( compiler_name, "gcc" ) ) { // allow suffix on gcc name
438	args[nargs++] = "-no-integrated-cpp";
439	args[nargs++] = "-Wno-deprecated";
440	#ifdef HAVE_CAST_FUNCTION_TYPE
441	args[nargs++] = "-Wno-cast-function-type";
442	#endif // HAVE_CAST_FUNCTION_TYPE
443	if ( ! std_flag ) { // default c11, if none specified
444	args[nargs++] = "-std=gnu11";
445	} // if
446	args[nargs++] = "-fgnu89-inline";
447	args[nargs++] = "-D__int8_t_defined"; // prevent gcc type-size attributes
448	args[nargs++] = ( *new string( string("-B") + bprefix ) ).c_str();
449	} else {
450	cerr << argv[0] << " error, compiler \"" << compiler_name << "\" unsupported." << endl;
451	exit( EXIT_FAILURE );
452	} // if
453
454	args[nargs] = nullptr; // terminate
455
456	#ifdef __DEBUG_H__
457	cerr << "nargs: " << nargs << endl;
458	cerr << "args:" << endl;
459	for ( int i = 0; args[i] != nullptr; i += 1 ) {
460	cerr << " \"" << args[i] << "\"" << endl;
461	} // for
462	cerr << endl;
463	#endif // __DEBUG_H__
464
465	if ( ! quiet ) {
466	cerr << "CFA " << "Version " << Version << heading << endl;
467	if ( help ) {
468	cerr <<
469	"-debug\t\t\t: use cfa runtime with debug checking" << endl <<
470	"-help\t\t\t: print this help message" << endl <<
471	"-quiet\t\t\t: print no messages from the cfa command" << endl <<
472	"-CFA\t\t\t: run the cpp preprocessor and the cfa-cpp translator" << endl <<
473	"-XCFA -cfa-cpp-flag\t: pass next flag as-is to the cfa-cpp translator" << endl <<
474	"...\t\t\t: any other " << compiler_name << " flags" << endl;
475	} // if
476	} // if
477
478	if ( verbose ) {
479	if ( argc == 2 ) exit( EXIT_SUCCESS ); // if only the -v flag is specified, do not invoke gcc
480
481	for ( int i = 0; args[i] != nullptr; i += 1 ) {
482	cerr << args[i] << " ";
483	} // for
484	cerr << endl;
485	} // if
486
487	if ( ! nonoptarg ) {
488	cerr << argv[0] << " error, no input files" << endl;
489	exit( EXIT_FAILURE );
490	} // if
491
492	// execute the command and return the result
493
494	execvp( args[0], (char const )args ); // should not return
495	perror( "CFA Translator error: execvp" );
496	exit( EXIT_FAILURE );
497	} // main
498
499	// Local Variables: //
500	// tab-width: 4 //
501	// mode: c++ //
502	// compile-command: "make install" //
503	// End: //

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