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source: driver/cfa.cc @ 417a630

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

Last change on this file since 417a630 was 417a630, checked in by Peter A. Buhr <pabuhr@…>, 5 years ago
second attempt at moving cfa-cpp to cc1 stage 2
Property mode set to `100644`
File size: 15.7 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 : Mon Aug 26 14:25:44 2019
13	// Update Count : 414
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
38	void Putenv( char * argv[], string arg ) {
39	static int flags = 0; // environment variables must have unique names
40
41	if ( putenv( (char )( new string( string( "__CFA_FLAG" + to_string( flags++ ) + "__=" ) + arg ) ).c_str() ) ) {
42	cerr << argv[0] << " error, cannot set environment variable." << endl;
43	exit( EXIT_FAILURE );
44	} // if
45	} // Putenv
46
47
48	bool prefix( const string & arg, const string & pre ) { // check if string has prefix
49	return arg.substr( 0, pre.size() ) == pre;
50	} // prefix
51
52	bool suffix( const string & arg ) { // check if string has suffix
53	enum { NumSuffixes = 3 };
54	static const string suffixes[NumSuffixes] = { "cfa", "hfa", "ifa" };
55
56	size_t dot = arg.find_last_of( "." );
57	if ( dot == string::npos ) return false;
58	const string * end = suffixes + NumSuffixes;
59	return std::find( suffixes, end, arg.substr( dot + 1 ) ) != end;
60	} // suffix
61
62
63	static inline bool dirExists( const string & path ) { // check if directory exists
64	struct stat info;
65	if ( stat( path.c_str(), &info ) != 0 ) return false;
66	if ( info.st_mode & S_IFDIR ) return true;
67	return false;
68	} // dirExists
69
70
71	#define xstr(s) str(s)
72	#define str(s) #s
73
74	int main( int argc, char * argv[] ) {
75	string Version( CFA_VERSION_LONG ); // current version number from CONFIG
76	string Major( xstr( CFA_VERSION_MAJOR ) ), Minor( xstr( CFA_VERSION_MINOR ) ), Patch( xstr( CFA_VERSION_PATCH ) );
77
78	string installincdir( CFA_INCDIR ); // fixed location of include files
79	string installlibdir( CFA_LIBDIR ); // fixed location of cc1 and cfa-cpp commands when installed
80	string srcdriverdir ( TOP_BUILDDIR "driver"); // fixed location of cc1 and cfa-cpp commands when in tree
81
82	string heading; // banner printed at start of cfa compilation
83	string arg; // current command-line argument during command-line parsing
84	string bprefix; // path where gcc looks for compiler command steps
85	string langstd; // language standard
86
87	string compiler_path( CFA_BACKEND_CC ); // path/name of C compiler
88	string compiler_name; // name of C compiler
89
90	bool x_flag = false; // -x flag
91	bool nonoptarg = false; // no non-option arguments specified, i.e., no file names
92	bool link = true; // link stage occurring
93	bool verbose = false; // -v flag
94	bool quiet = false; // -quiet flag
95	bool debug = true; // -debug flag
96	bool nolib = false; // -nolib flag
97	bool help = false; // -help flag
98	bool CFA_flag = false; // -CFA flag
99	bool cpp_flag = false; // -E or -M flag, preprocessor only
100	bool std_flag = false; // -std= flag
101	bool noincstd_flag = false; // -no-include-stdhdr= flag
102	bool debugging __attribute(( unused )) = false; // -g flag
103	bool m32 = false; // -m32 flag
104	bool m64 = false; // -m64 flag
105	bool intree = false; // build in tree
106	int o_file = 0; // -o filename position
107
108	const char *args[argc + 100]; // cfa command line values, plus some space for additional flags
109	int sargs = 1; // starting location for arguments in args list
110	int nargs = sargs; // number of arguments in args list; 0 => command name
111
112	const char *libs[argc + 20]; // non-user libraries must come separately, plus some added libraries and flags
113	int nlibs = 0;
114
115	#ifdef __DEBUG_H__
116	cerr << "CFA:" << endl;
117	for ( int i = 1; i < argc; i += 1 ) {
118	cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
119	} // for
120	#endif // __DEBUG_H__
121
122	// process command-line arguments
123
124	for ( int i = 1; i < argc; i += 1 ) {
125	arg = argv[i]; // convert to string value
126	if ( prefix( arg, "-" ) ) {
127	// pass through arguments
128
129	if ( arg == "-Xlinker" \|\| arg == "-o" ) {
130	args[nargs++] = argv[i]; // pass argument along
131	i += 1;
132	if ( i == argc ) continue; // next argument available ?
133	args[nargs++] = argv[i]; // pass argument along
134	if ( arg == "-o" ) o_file = i; // remember file
135	} else if ( arg == "-XCFA" ) { // CFA pass through
136	i += 1;
137	Putenv( argv, argv[i] );
138
139	// CFA specific arguments
140
141	} else if ( arg == "-CFA" ) {
142	CFA_flag = true; // strip the -CFA flag
143	link = false;
144	args[nargs++] = "-fsyntax-only"; // stop after stage 2
145	} else if ( arg == "-debug" ) {
146	debug = true; // strip the debug flag
147	} else if ( arg == "-nodebug" ) {
148	debug = false; // strip the nodebug flag
149	} else if ( arg == "-nolib" ) {
150	nolib = true; // strip the nodebug flag
151	} else if ( arg == "-quiet" ) {
152	quiet = true; // strip the quiet flag
153	} else if ( arg == "-noquiet" ) {
154	quiet = false; // strip the noquiet flag
155	} else if ( arg == "-help" ) {
156	help = true; // strip the help flag
157	} else if ( arg == "-nohelp" ) {
158	help = false; // strip the nohelp flag
159	} else if ( arg == "-no-include-stdhdr" ) {
160	noincstd_flag = true; // strip the no-include-stdhdr flag
161	} else if ( arg == "-in-tree" ) {
162	intree = true;
163	} else if ( arg == "-compiler" ) {
164	// use the user specified compiler
165	i += 1;
166	if ( i == argc ) continue; // next argument available ?
167	compiler_path = argv[i];
168	Putenv( argv, arg + "=" + argv[i] );
169
170	// C specific arguments
171
172	} else if ( arg == "-v" ) {
173	verbose = true; // verbosity required
174	args[nargs++] = argv[i]; // pass argument along
175	} else if ( arg == "-g" ) {
176	debugging = true; // symbolic debugging required
177	args[nargs++] = argv[i]; // pass argument along
178	} else if ( arg == "-save-temps" ) {
179	args[nargs++] = argv[i]; // pass argument along
180	Putenv( argv, arg ); // save cfa-cpp output
181	} else if ( prefix( arg, "-x" ) ) { // file suffix ?
182	string lang;
183	args[nargs++] = argv[i]; // pass argument along
184	if ( arg.length() == 2 ) { // separate argument ?
185	i += 1;
186	if ( i == argc ) continue; // next argument available ?
187	lang = argv[i];
188	args[nargs++] = argv[i]; // pass argument along
189	} else {
190	lang = arg.substr( 2 );
191	} // if
192	x_flag = lang != "none";
193	} else if ( prefix( arg, "-std=" ) \|\| prefix( arg, "--std=" ) ) {
194	std_flag = true; // -std=XX provided
195	args[nargs++] = argv[i]; // pass argument along
196	} else if ( arg == "-w" ) {
197	args[nargs++] = argv[i]; // pass argument along
198	Putenv( argv, arg );
199	} else if ( prefix( arg, "-W" ) ) { // check before next tests
200	if ( arg == "-Werror" \|\| arg == "-Wall" ) {
201	args[nargs++] = argv[i]; // pass argument along
202	Putenv( argv, argv[i] );
203	} else {
204	unsigned int adv = prefix( arg, "-Wno-" ) ? 5 : 2;
205	args[nargs] = argv[i]; // conditionally pass argument along
206	const char * warning = argv[i] + adv; // extract warning
207	if ( SemanticWarning_Exist( warning ) ) { // replace the argument for cfa-cpp
208	Putenv( argv, arg );
209	} // if
210	nargs += 1;
211	} // if
212	} else if ( prefix( arg, "-B" ) ) {
213	bprefix = arg.substr(2); // strip the -B flag
214	// args[nargs++] = ( *new string( string("-D__GCC_BPREFIX__=") + bprefix ) ).c_str();
215	} else if ( arg == "-c" \|\| arg == "-S" \|\| arg == "-E" \|\| arg == "-M" \|\| arg == "-MM" ) {
216	args[nargs++] = argv[i]; // pass argument along
217	if ( arg == "-E" \|\| arg == "-M" \|\| arg == "-MM" ) {
218	cpp_flag = true; // cpp only
219	} // if
220	link = false; // no linkage required
221	} else if ( arg[1] == 'l' ) {
222	// if the user specifies a library, load it after user code
223	libs[nlibs++] = argv[i];
224	} else if ( arg == "-m32" ) {
225	m32 = true;
226	m64 = false;
227	args[nargs++] = argv[i];
228	} else if ( arg == "-m64" ) {
229	m64 = true;
230	m32 = false;
231	args[nargs++] = argv[i];
232	} else {
233	// concatenate any other arguments
234	args[nargs++] = argv[i];
235	} // if
236	} else {
237	bool cfa = suffix( arg ); // check suffix
238	if ( ! x_flag && cfa ) { // no explicit suffix and cfa suffix ?
239	args[nargs++] = "-x";
240	args[nargs++] = "c";
241	} // if
242	args[nargs++] = argv[i]; // concatenate files
243	if ( ! x_flag && cfa ) { // no explicit suffix and cfa suffix ?
244	args[nargs++] = "-x";
245	args[nargs++] = "none";
246	} // if
247	nonoptarg = true;
248	} // if
249	} // for
250
251	#ifdef __x86_64__
252	args[nargs++] = "-mcx16"; // allow double-wide CAA
253	#endif // __x86_64__
254
255	#ifdef __DEBUG_H__
256	cerr << "args:";
257	for ( int i = 1; i < nargs; i += 1 ) {
258	cerr << " " << args[i];
259	} // for
260	cerr << endl;
261	#endif // __DEBUG_H__
262
263	// -E flag stops at cc1 stage 1, so cfa-cpp in cc1 stage 2 is never executed.
264	if ( cpp_flag && CFA_flag ) {
265	cerr << argv[0] << " error, cannot use -E and -CFA flags together." << endl;
266	exit( EXIT_FAILURE );
267	} // if
268
269	// add the CFA include-library paths, which allow direct access to header files without directory qualification
270	if ( ! intree ) {
271	args[nargs++] = "-I" CFA_INCDIR;
272	if ( ! noincstd_flag ) { // do not use during build
273	args[nargs++] = "-I" CFA_INCDIR "stdhdr";
274	} // if
275	args[nargs++] = "-I" CFA_INCDIR "concurrency";
276	args[nargs++] = "-I" CFA_INCDIR "containers";
277	} else {
278	args[nargs++] = "-I" TOP_SRCDIR "libcfa/src";
279	if ( ! noincstd_flag ) { // do not use during build
280	args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/stdhdr";
281	} // if
282	args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/concurrency";
283	args[nargs++] = "-I" TOP_SRCDIR "libcfa/src" "/containers";
284	} // if
285
286	// add stdbool to get defines for bool/true/false
287	args[nargs++] = "-imacros";
288	args[nargs++] = "stdbool.h";
289
290	string libbase;
291	if ( ! intree ) {
292	libbase = CFA_LIBDIR;
293	} else {
294	libbase = TOP_BUILDDIR "libcfa/";
295	Putenv( argv, "-t" );
296	} // if
297
298	string arch( m32 ? CFA_32_CPU : (m64 ? CFA_64_CPU : CFA_DEFAULT_CPU) );
299	if ( ! m32 && ! m64 ) {
300	if ( arch == "x86" ) {
301	args[nargs++] = "-m32";
302	} else if ( arch == "x64" ) {
303	args[nargs++] = "-m64";
304	} // if
305	} // if
306
307	string libdir( libbase + arch + "-" + (nolib ? "nolib" : (debug ? "debug": "nodebug")) );
308	if ( ! dirExists( libdir ) ) {
309	cerr << argv[0] << " internal error, cannot find prelude directory " << libdir << endl;
310	exit( EXIT_FAILURE );
311	} // if
312
313	for ( int i = 0; i < nlibs; i += 1 ) { // copy non-user libraries after all user libraries
314	args[nargs++] = libs[i];
315	} // for
316
317	if ( link ) {
318	args[nargs++] = "-Xlinker";
319	args[nargs++] = "--undefined=__cfaabi_dbg_bits_write";
320	args[nargs++] = "-Xlinker";
321	args[nargs++] = "--undefined=__cfaabi_interpose_startup";
322	args[nargs++] = "-Xlinker";
323	args[nargs++] = "--undefined=__cfaabi_appready_startup";
324
325	// include the cfa library in case it's needed
326	args[nargs++] = ( *new string( string("-L" ) + libdir + (intree ? "/src/.libs" : "")) ).c_str();
327	args[nargs++] = ( *new string( string("-Wl,-rpath," ) + libdir + (intree ? "/src/.libs" : "")) ).c_str();
328	args[nargs++] = "-Wl,--push-state,--as-needed";
329	args[nargs++] = "-lcfathread";
330	args[nargs++] = "-Wl,--pop-state";
331	args[nargs++] = "-lcfa";
332	args[nargs++] = "-lpthread";
333	args[nargs++] = "-ldl";
334	args[nargs++] = "-lrt";
335	args[nargs++] = "-lm";
336	} // if
337
338	args[nargs++] = "-fexceptions"; // add exception flags (unconditionally)
339
340	// add flags based on the type of compile
341
342	args[nargs++] = ( *new string( string("-D__CFA_MAJOR__=") + Major ) ).c_str();
343	args[nargs++] = ( *new string( string("-D__CFA_MINOR__=") + Minor ) ).c_str();
344	args[nargs++] = ( *new string( string("-D__CFA_PATCH__=") + Patch ) ).c_str();
345	args[nargs++] = "-D__CFA__";
346	args[nargs++] = "-D__CFORALL__";
347	args[nargs++] = "-D__cforall";
348
349	if ( cpp_flag ) {
350	args[nargs++] = "-D__CPP__";
351	} // if
352
353	if ( CFA_flag ) {
354	Putenv( argv, "-N" );
355	Putenv( argv, "-CFA" );
356	// -CFA implies cc1 stage 2, but gcc does not pass the -o file to this stage because it believe the file is for
357	// the linker. Hence, the -o file is explicit passed to cc1 stage 2 and used as cfa-cpp's output file.
358	if ( o_file ) Putenv( argv, string( "-o=" ) + argv[o_file] );
359	} else {
360	Putenv( argv, "-L" );
361	} // if
362
363	Putenv( argv, "--prelude-dir=" + libdir + (intree ? "/prelude" : "") );
364
365	if ( debug ) {
366	heading += " (debug)";
367	args[nargs++] = "-D__CFA_DEBUG__";
368	} else {
369	heading += " (no debug)";
370	} // if
371
372	if ( bprefix.length() == 0 ) {
373	bprefix = ! intree ? installlibdir : srcdriverdir;
374	if ( bprefix[bprefix.length() - 1] != '/' ) bprefix += '/';
375	// args[nargs++] = ( *new string( string("-D__GCC_BPREFIX__=") + bprefix ) ).c_str();
376	Putenv( argv, ( *new string( string("-B=") + bprefix ) ).c_str() );
377	} // if
378
379	args[nargs++] = "-Xlinker"; // used by backtrace
380	args[nargs++] = "-export-dynamic";
381
382	// execute the compilation command
383
384	args[0] = compiler_path.c_str(); // set compiler command for exec
385	// find actual name of the compiler independent of the path to it
386	int p = compiler_path.find_last_of( '/' ); // scan r -> l for first '/'
387	if ( p == -1 ) {
388	compiler_name = compiler_path;
389	} else {
390	compiler_name = *new string( compiler_path.substr( p + 1 ) );
391	} // if
392
393	if ( prefix( compiler_name, "gcc" ) ) { // allow suffix on gcc name
394	args[nargs++] = "-no-integrated-cpp";
395	args[nargs++] = "-Wno-deprecated";
396	#ifdef HAVE_CAST_FUNCTION_TYPE
397	args[nargs++] = "-Wno-cast-function-type";
398	#endif // HAVE_CAST_FUNCTION_TYPE
399	if ( ! std_flag ) { // default c11, if none specified
400	args[nargs++] = "-std=gnu11";
401	} // if
402	args[nargs++] = "-fgnu89-inline";
403	args[nargs++] = "-D__int8_t_defined"; // prevent gcc type-size attributes
404	args[nargs++] = ( *new string( string("-B") + bprefix ) ).c_str();
405	} else {
406	cerr << argv[0] << " error, compiler \"" << compiler_name << "\" unsupported." << endl;
407	exit( EXIT_FAILURE );
408	} // if
409
410	args[nargs] = nullptr; // terminate
411
412	#ifdef __DEBUG_H__
413	cerr << "nargs: " << nargs << endl;
414	cerr << "args:" << endl;
415	for ( int i = 0; args[i] != nullptr; i += 1 ) {
416	cerr << " \"" << args[i] << "\"" << endl;
417	} // for
418	#endif // __DEBUG_H__
419
420	if ( ! quiet ) {
421	cerr << "CFA " << "Version " << Version << heading << endl;
422
423	if ( help ) {
424	cerr <<
425	"-debug\t\t\t: use cfa runtime with debug checking" << endl <<
426	"-help\t\t\t: print this help message" << endl <<
427	"-quiet\t\t\t: print no messages from the cfa command" << endl <<
428	"-CFA\t\t\t: run the cpp preprocessor and the cfa-cpp translator" << endl <<
429	"-XCFA -cfa-cpp-flag\t: pass next flag as-is to the cfa-cpp translator" << endl <<
430	"...\t\t\t: any other " << compiler_name << " flags" << endl;
431	} // if
432	} // if
433
434	if ( verbose ) {
435	if ( argc == 2 ) exit( EXIT_SUCCESS ); // if only the -v flag is specified, do not invoke gcc
436
437	for ( int i = 0; args[i] != nullptr; i += 1 ) {
438	cerr << args[i] << " ";
439	} // for
440	cerr << endl;
441	} // if
442
443	if ( ! nonoptarg ) {
444	cerr << argv[0] << " error, no input files" << endl;
445	exit( EXIT_FAILURE );
446	} // if
447
448	// execute the command and return the result
449
450	execvp( args[0], (char const )args ); // should not return
451	perror( "CFA Translator error: execvp" );
452	exit( EXIT_FAILURE );
453	} // main
454
455	// Local Variables: //
456	// tab-width: 4 //
457	// mode: c++ //
458	// compile-command: "make install" //
459	// End: //

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