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Some consistency changes to library & headers flags.
[splint-patched.git] / src / context.c
blobfe6f103fbc16ccff0e0f239a2588dbf393db1134
1 /*
2 ** Splint - annotation-assisted static program checker
3 ** Copyright (C) 1994-2003 University of Virginia,
4 ** Massachusetts Institute of Technology
5 **
6 ** This program is free software; you can redistribute it and/or modify it
7 ** under the terms of the GNU General Public License as published by the
8 ** Free Software Foundation; either version 2 of the License, or (at your
9 ** option) any later version.
10 **
11 ** This program is distributed in the hope that it will be useful, but
12 ** WITHOUT ANY WARRANTY; without even the implied warranty of
13 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 ** General Public License for more details.
15 **
16 ** The GNU General Public License is available from http://www.gnu.org/ or
17 ** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
18 ** MA 02111-1307, USA.
19 **
20 ** For information on splint: info@splint.org
21 ** To report a bug: splint-bug@splint.org
22 ** For more information: http://www.splint.org
23 */
24 /*
25 ** context.c
26 */
27
28 # include "splintMacros.nf"
29 # include "basic.h"
30
31 # include "exprChecks.h"
32 # include "filelocStack.h"
33 # include "intSet.h"
34 # include "osd.h"
35
36 # define C_DEBUG 1
37 # include "cgrammar.h"
38 # define MTDEBUG 1
39 # include "mtgrammar.h"
40
41 /*@-macrostmt@*/
42 /*@constant observer const char *LARCHDIR; @*/
43 # define LARCHDIR PKGDATADIR CONNECTSTR DEFAULT_LARCHDIR
44 /*@constant observer const char *LCLDIR; @*/
45 # define LCLDIR PKGDATADIR CONNECTSTR DEFAULT_LCLDIR
46 /*@=macrostmt@*/
47
48 typedef struct
49 {
50 cstring file;
51 typeIdSet daccess;
52 } maccesst;
53
54 typedef enum {
55 CX_ERROR,
56
57 CX_GLOBAL, CX_INNER,
58 CX_FUNCTION, CX_FCNDECLARATION,
59 CX_MACROFCN, CX_MACROCONST, CX_UNKNOWNMACRO,
60 CX_ITERDEF, CX_ITEREND,
61 CX_OLDSTYLESCOPE, /* Parsing old-style parameter declarations */
62 CX_LCL, CX_LCLLIB, CX_MT
63 } kcontext;
64
65 static struct
66 {
67 int linesprocessed;
68 int speclinesprocessed;
69
70 flagMarkerList markers;
71
72 /*
73 ** used to record state where a macro must match a function name
74 ** (i.e., no params were listed in the macro definition
75 */
76
77 bool macroMissingParams BOOLBITS;
78 bool preprocessing BOOLBITS;
79 bool incommandline BOOLBITS;
80 bool insuppressregion BOOLBITS;
81 bool inDerivedFile BOOLBITS;
82 bool instandardlib BOOLBITS;
83 bool inimport BOOLBITS;
84 bool inheader BOOLBITS;
85 bool inmacrocache BOOLBITS;
86 bool protectVars BOOLBITS;
87 bool neednl BOOLBITS;
88 bool showfunction BOOLBITS;
89 bool savedFlags BOOLBITS;
90 bool justpopped BOOLBITS;
91 bool anyExports BOOLBITS;
92 bool inFunctionHeader BOOLBITS;
93
94 flagcode library;
95
96 ynm isNullGuarded;
97 fileloc saveloc;
98 fileloc pushloc;
99
100 clauseStack clauses;
101 clause inclause;
102
103 int numerrors;
104 int numbugs;
105
106 filelocStack locstack;
107 fileTable ftab;
108 cstring msgAnnote;
109 /*@observer@*/ sRef aliasAnnote;
110 /*@observer@*/ sRef aliasAnnoteAls;
111 messageLog msgLog;
112
113 macrocache mc;
114 /*@observer@*/ sRefSet mods;
115
116 /* file access types */
117 typeIdSet facct;
118
119 /* local access types (this function) */
120 typeIdSet acct;
121
122 /* no access types (@noaccess) */
123 typeIdSet nacct;
124
125 /*@observer@*/ globSet globs;
126 /*@only@*/ globSet globs_used;
127
128 int nmods;
129 int maxmods;
130 /*@reldef@*/ maccesst *moduleaccess; /* Not defined is nmods == 0. */
131
132 kcontext kind;
133
134 ctype boolType;
135
136 bool flags[NUMFLAGS];
137 bool saveflags[NUMFLAGS];
138 bool setGlobally[NUMFLAGS];
139 bool setLocally[NUMFLAGS];
140
141 int values[NUMVALUEFLAGS];
142 int counters[NUMVALUEFLAGS];
143
144 o_cstring strings[NUMSTRINGFLAGS];
145 sRefSetList modrecs; /* Keep track of file static symbols modified. */
146
147 metaStateTable stateTable; /* User-defined state information. */
148 annotationTable annotTable; /* User-defined annotations table. */
149 union u_cont
150 {
151 bool glob;
152 int cdepth;
153 /*@dependent@*/ /*@exposed@*/ uentry fcn;
154 } cont;
155
156 kcontext savekind;
157 union u_cont savecont;
158 } gc;
159
160 static /*@exposed@*/ cstring context_exposeString (flagcode p_flag) ;
161 static void context_restoreFlagSettings (void) /*@modifies gc@*/ ;
162 static void context_saveFlagSettings (void) /*@modifies gc@*/ ;
163 static void context_exitClauseSimp (void) /*@modifies gc@*/ ;
164 static void context_setJustPopped (void) /*@modifies gc.justpopped@*/ ;
165 static void context_setValue (flagcode p_flag, int p_val) /*@modifies gc.flags@*/ ;
166 static void context_setFlag (flagcode p_f, bool p_b, fileloc p_loc)
167 /*@modifies gc.flags@*/ ;
168
169 static void
170 context_setFlagAux (flagcode p_f, bool p_b, bool p_inFile,
171 bool p_isRestore, fileloc p_loc)
172 /*@modifies gc.flags@*/ ;
173
174 static void context_restoreFlag (flagcode p_f, fileloc p_loc)
175 /*@modifies gc.flags@*/ ;
176
177 /*@+enumindex@*/
178
179 # ifdef DEADCODE
180 cstring context_unparseFlagMarkers (void)
181 {
182 return (flagMarkerList_unparse (gc.markers));
183 }
184 # endif /* DEADCODE */
185
186 void context_setPreprocessing (void)
187 {
188 llassert (!gc.preprocessing);
189 gc.preprocessing = TRUE;
190 }
191
192 void context_clearPreprocessing (void)
193 {
194 llassert (gc.preprocessing);
195 gc.preprocessing = FALSE;
196 }
197
198 bool context_isPreprocessing (void)
199 {
200 return gc.preprocessing;
201 }
202
203 bool context_loadingLibrary (void)
204 {
205 return (fileloc_isLib (g_currentloc));
206 }
207
208 bool context_inXHFile (void)
209 {
210 return (fileloc_isXHFile (g_currentloc));
211 }
212
213 void context_setInCommandLine (void)
214 {
215 llassert (!gc.incommandline);
216 gc.incommandline = TRUE;
217 }
218
219 void context_clearInCommandLine (void)
220 {
221 llassert (gc.incommandline);
222 gc.incommandline = FALSE;
223 }
224
225 bool context_isInCommandLine (void)
226 {
227 return gc.incommandline;
228 }
229
230 static
231 void pushClause (clause c) /*@modifies gc.clauses, gc.inclause@*/
232 {
233 gc.inclause = c;
234 clauseStack_push (gc.clauses, c);
235
236 if (clause_isConditional (c)
237 && context_getFlag (FLG_CONTROLNESTDEPTH))
238 {
239 int maxdepth = context_getValue (FLG_CONTROLNESTDEPTH);
240 int depth = clauseStack_controlDepth (gc.clauses);
241
242 if (depth == maxdepth + 1)
243 {
244 voptgenerror
245 (FLG_CONTROLNESTDEPTH,
246 message ("Maximum control nesting depth "
247 "(%d) exceeded",
248 maxdepth),
249 g_currentloc);
250 }
251 }
252 }
253
254 static
255 clause topClause (clauseStack s) /*@*/
256 {
257 if (clauseStack_isEmpty (s)) return NOCLAUSE;
258 return ((clause) clauseStack_top (s));
259 }
260
261 void
262 context_addMacroCache (/*@only@*/ cstring def)
263 {
264 DPRINTF (("macro cache: %s", def));
265 macrocache_addEntry (gc.mc, fileloc_copy (g_currentloc), def);
266 }
267
268 void
269 context_addComment (/*@only@*/ cstring def, fileloc loc)
270 {
271 macrocache_addComment (gc.mc, fileloc_copy (loc), def);
272 }
273
274 /*
275 ** returns TRUE is fl is in ignore region, or region where -code
276 **
277 ** the logic is fuzzy...
278 */
279
280 static bool
281 context_inSuppressFlagZone (fileloc fl, flagcode code)
282 {
283 ynm ret = flagMarkerList_suppressError (gc.markers, code, fl);
284 bool res = FALSE;
285
286 if (ynm_isMaybe (ret))
287 {
288 /*
289 ** whas is dis?
290 */
291
292 if (gc.savedFlags)
293 {
294 res = !gc.saveflags[code];
295 }
296 else
297 {
298 res = !context_getFlag (code);
299 }
300 }
301 else
302 {
303 res = ynm_toBoolStrict (ret);
304 }
305
306 return res;
307 }
308
309 static bool
310 context_suppressSystemMsg (fileloc fl)
311 {
312 if (context_getFlag (FLG_SYSTEMDIRERRORS))
313 {
314 return FALSE;
315 }
316 else
317 {
318 return (fileloc_isSystemFile (fl));
319 }
320 }
321
322 bool
323 context_suppressFlagMsg (flagcode flag, fileloc fl)
324 {
325 if (context_suppressSystemMsg (fl))
326 {
327 return TRUE;
328 }
329
330 DPRINTF (("Checking suppress: %s / %s", fileloc_unparse (fl), fileloc_unparse (g_currentloc)));
331
332 /* want same object compare here */
333
334 if (fileloc_equal (fl, g_currentloc) || gc.inDerivedFile)
335 {
336 DPRINTF (("In derived file: %s", bool_unparse (gc.inDerivedFile)));
337
338 return (!context_getFlag (flag)
339 || context_inSuppressRegion ()
340 || context_inSuppressZone (fl)
341 || (context_inSuppressFlagZone (fl, flag))); /* removed gc.inDerivedFile from this */
342 }
343 else
344 {
345 return (context_inSuppressFlagZone (fl, flag));
346 }
347 }
348
349 bool
350 context_suppressNotFlagMsg (flagcode flag, fileloc fl)
351 {
352
353 if (context_suppressSystemMsg (fl))
354 {
355 return TRUE;
356 }
357
358 /*@access fileloc@*/
359 if (fl == g_currentloc)
360 /*@noaccess fileloc@*/
361 {
362 return (context_getFlag (flag) || context_inSuppressRegion ());
363 }
364 else
365 {
366 /* for now... */
367 return (context_getFlag (flag) || context_inSuppressRegion ());
368 }
369 }
370
371 bool
372 context_inSuppressZone (fileloc fl)
373 {
374 if (context_suppressSystemMsg (fl))
375 {
376 return TRUE;
377 }
378
379 return (flagMarkerList_inIgnore (gc.markers, fl));
380 }
381
382 bool
383 context_inSuppressRegion (void)
384 {
385 return (gc.insuppressregion);
386 }
387
388 void
389 context_enterSuppressRegion (fileloc loc)
390 {
391 if (gc.insuppressregion)
392 {
393 gc.insuppressregion = FALSE; /* get this msg! */
394 llmsg (message
395 ("%q: New ignore errors region entered while in ignore errors region",
396 fileloc_unparse (loc)));
397 }
398
399 gc.insuppressregion = TRUE;
400 (void) flagMarkerList_add (gc.markers, flagMarker_createIgnoreOn (loc));
401 }
402
403 static void
404 context_addFlagMarker (flagcode code, ynm set, fileloc loc)
405 {
406 (void) flagMarkerList_add (gc.markers,
407 flagMarker_createLocalSet (code, set, loc));
408 }
409
410 void
411 context_enterSuppressLine (int count, fileloc loc)
412 {
413 if (context_processingMacros ())
414 {
415 return;
416 }
417
418 if (flagMarkerList_add
419 (gc.markers,
420 flagMarker_createIgnoreCount (count, loc)))
421 {
422 fileloc nextline = fileloc_copy (loc);
423 fileloc_nextLine (nextline);
424 fileloc_setColumn (nextline, 0);
425
426 check (flagMarkerList_add (gc.markers,
427 flagMarker_createIgnoreOff (nextline)));
428 fileloc_free (nextline);
429 }
430 }
431
432 void context_checkSuppressCounts (void)
433 {
434 if (context_getFlag (FLG_SUPCOUNTS))
435 {
436 flagMarkerList_checkSuppressCounts (gc.markers);
437 }
438 }
439
440 void context_incLineno (void)
441 {
442 gc.linesprocessed++;
443 incLine ();
444 }
445
446 void
447 context_exitSuppressRegion (fileloc loc)
448 {
449 if (!gc.insuppressregion)
450 {
451 voptgenerror
452 (FLG_SYNTAX,
453 message ("End ignore errors in region while not ignoring errors"),
454 loc);
455 }
456
457 gc.insuppressregion = FALSE;
458 (void) flagMarkerList_add (gc.markers, flagMarker_createIgnoreOff (loc));
459 }
460
461 void
462 context_enterMTfile (void)
463 {
464 gc.kind = CX_MT;
465 }
466
467 void
468 context_exitMTfile (void)
469 {
470 llassert (gc.kind == CX_MT);
471 gc.kind = CX_GLOBAL;
472 }
473
474 void
475 context_enterLCLfile (void)
476 {
477 gc.kind = CX_LCL;
478 gc.facct = typeIdSet_emptySet ();
479 }
480
481 static void
482 addModuleAccess (/*@only@*/ cstring fname, typeIdSet mods)
483 {
484 int i;
485
486 for (i = 0; i < gc.nmods; i++)
487 {
488 if (cstring_equal (gc.moduleaccess[i].file, fname))
489 {
490 gc.moduleaccess[i].daccess = typeIdSet_union (gc.moduleaccess[i].daccess, mods);
491 cstring_free (fname);
492 return;
493 }
494 }
495
496 if (gc.nmods == gc.maxmods)
497 {
498 maccesst *oldmods;
499
500 gc.maxmods = gc.maxmods + DEFAULTMAXMODS;
501 oldmods = gc.moduleaccess;
502
503 gc.moduleaccess = (maccesst *) dmalloc (sizeof (*gc.moduleaccess) * (gc.maxmods));
504
505 for (i = 0; i < gc.nmods; i++)
506 {
507 gc.moduleaccess[i] = oldmods[i];
508 }
509
510 sfree (oldmods);
511 }
512
513 gc.moduleaccess[gc.nmods].file = fname;
514 gc.moduleaccess[gc.nmods].daccess = mods;
515
516 gc.nmods++;
517 }
518
519 static void
520 insertModuleAccess (cstring fname, typeId t)
521 {
522 int i;
523
524 for (i = 0; i < gc.nmods; i++)
525 {
526 if (cstring_equal (gc.moduleaccess[i].file, fname))
527 {
528 gc.moduleaccess[i].daccess = typeIdSet_insert (gc.moduleaccess[i].daccess, t);
529 break;
530 }
531 }
532
533 addModuleAccess (cstring_copy (fname), typeIdSet_single (t));
534 }
535
536 void
537 context_exitLCLfile (void)
538 {
539 if (gc.kind != CX_LCLLIB)
540 {
541 cstring lclname =
542 fileLib_withoutExtension (fileTable_fileName (currentFile ()), LCL_EXTENSION);
543
544 addModuleAccess (fileLib_removePath (lclname), gc.facct);
545 cstring_free (lclname);
546 }
547
548 gc.kind = CX_GLOBAL;
549 gc.facct = typeIdSet_emptySet ();
550 }
551
552 void
553 context_dumpModuleAccess (FILE *fout)
554 {
555 int i = 0;
556
557 for (i = 0; i < gc.nmods; i++)
558 {
559 cstring td = typeIdSet_dump (gc.moduleaccess[i].daccess);
560
561 fprintf (fout, "%s#%s@\n",
562 cstring_toCharsSafe (gc.moduleaccess[i].file),
563 cstring_toCharsSafe (td));
564
565 cstring_free (td);
566 }
567 }
568
569 bool context_usingPosixLibrary (void)
570 {
571 return (gc.library == FLG_POSIXLIB
572 || gc.library == FLG_POSIXSTRICTLIB
573 || gc.library == FLG_UNIXLIB
574 || gc.library == FLG_UNIXSTRICTLIB);
575 }
576
577 bool context_usingStdLibrary (void)
578 {
579 return (gc.library != FLG_NOLIB);
580 }
581
582 flagcode context_getLibrary (void)
583 {
584 return gc.library;
585 }
586
587 void context_setLibrary (flagcode code)
588 {
589 gc.library = code;
590
591 /* what if these any of these flags has already been explicitly set?
592 * we're changing them without any warning to the user ... */
593 gc.flags[FLG_SKIPSTDHEADERS] = context_usingStdLibrary ();
594 gc.flags[FLG_SKIPPOSIXHEADERS] = context_usingPosixLibrary ();
595 }
596
597 /*@observer@*/ cstring context_selectedLibrary (void)
598 {
599 switch (gc.library)
600 {
601 case FLG_STDLIB:
602 return cstring_makeLiteralTemp (LLSTDLIBS_NAME);
603 case FLG_STDSTRICTLIB:
604 return cstring_makeLiteralTemp (LLSTDSTRICTLIBS_NAME);
605 case FLG_POSIXLIB:
606 return cstring_makeLiteralTemp (LLPOSIXLIBS_NAME);
607 case FLG_POSIXSTRICTLIB:
608 return cstring_makeLiteralTemp (LLPOSIXSTRICTLIBS_NAME);
609 case FLG_UNIXLIB:
610 return cstring_makeLiteralTemp (LLUNIXLIBS_NAME);
611 case FLG_UNIXSTRICTLIB:
612 return cstring_makeLiteralTemp (LLUNIXSTRICTLIBS_NAME);
613 BADDEFAULT;
614 }
615 }
616
617
618 void
619 context_loadModuleAccess (FILE *in)
620 {
621 char *s = mstring_create (MAX_DUMP_LINE_LENGTH);
622 char *lasts = s;
623 char *name = mstring_create (MAX_NAME_LENGTH);
624 char *oname = name;
625 char *os = s;
626
627 while ((reader_readLine (in, s, MAX_DUMP_LINE_LENGTH) != NULL )
628 && *s == ';')
629 {
630 ;
631 }
632
633 while (s != NULL && *s != ';' && *s != '\0')
634 {
635 name = oname;
636
637 while (*s != '#' && *s != '\0')
638 {
639 *name++ = *s++;
640 }
641
642 *name = '\0';
643
644 if (*s != '#')
645 {
646 llcontbug (message ("context_loadModuleAccess: bad library line: %s\n",
647 cstring_fromChars (s)));
648 break;
649 }
650
651 s++;
652
653 addModuleAccess (cstring_copy (cstring_fromChars (oname)),
654 typeIdSet_undump (&s));
655
656 (void) reader_readLine (in, s, MAX_DUMP_LINE_LENGTH);
657 llassert (s != lasts);
658 lasts = s;
659 }
660
661 sfree (oname);
662 sfree (os);
663 }
664
665 typeIdSet context_fileAccessTypes (void)
666 {
667 return gc.facct;
668 }
669
670 void
671 context_resetModeFlags (void)
672 {
673 allFlagCodes (code)
674 {
675 if (flagcode_isModeFlag (code))
676 {
677 context_setFlag (code, FALSE, g_currentloc);
678 }
679 } end_allFlagCodes;
680 }
681
682 /*
683 ** resetAllFlags
684 **
685 ** Set all flags to FALSE, except for a few which are
686 ** true by default.
687 **
688 ** Set all values and strings to appropriate defaults.
689 ** Set all counters to 0.
690 */
691
692 static void
693 conext_resetAllCounters (void)
694 {
695 int i;
696
697 for (i = 0; i < NUMVALUEFLAGS; i++)
698 {
699 gc.counters[i] = 0;
700 }
701 }
702
703 void
704 context_resetAllFlags (void)
705 {
706 DPRINTF (("******** Reset all flags"));
707
708 allFlagCodes (code)
709 {
710 gc.flags[code] = FALSE;
711
712 if (flagcode_hasNumber (code))
713 {
714 int val = 0;
715
716 /*@-loopswitchbreak@*/
717 switch (code)
718 {
719 case FLG_LIMIT:
720 val = DEFAULT_LIMIT; break;
721 case FLG_BUGSLIMIT:
722 val = DEFAULT_BUGSLIMIT; break;
723 case FLG_LINELEN:
724 val = DEFAULT_LINELEN; break;
725 case FLG_INDENTSPACES:
726 val = DEFAULT_INDENTSPACES; break;
727 case FLG_LOCINDENTSPACES:
728 val = DEFAULT_LOCINDENTSPACES; break;
729 case FLG_EXTERNALNAMELEN:
730 val = ISO99_EXTERNALNAMELEN; break;
731 case FLG_INTERNALNAMELEN:
732 val = ISO99_INTERNALNAMELEN; break;
733 case FLG_COMMENTCHAR:
734 val = (int) DEFAULT_COMMENTCHAR; break;
735 case FLG_CONTROLNESTDEPTH:
736 val = (int) ISO99_CONTROLNESTDEPTH; break;
737 case FLG_STRINGLITERALLEN:
738 val = (int) ISO99_STRINGLITERALLEN; break;
739 case FLG_INCLUDENEST:
740 val = (int) ISO99_INCLUDENEST; break;
741 case FLG_NUMSTRUCTFIELDS:
742 val = (int) ISO99_NUMSTRUCTFIELDS; break;
743 case FLG_NUMENUMMEMBERS:
744 val = (int) ISO99_NUMENUMMEMBERS; break;
745 case FLG_EXPECT:
746 case FLG_LCLEXPECT:
747 break;
748 default:
749 llbug (message ("Bad value flag: %s", flagcode_unparse (code)));
750 }
751 /*@=loopswitchbreak@*/
752
753 DPRINTF (("Set value: [%s] / %d", flagcode_unparse (code), val));
754 context_setValue (code, val);
755 DPRINTF (("Set value: [%s] / %d", flagcode_unparse (code), context_getValue (code)));
756 llassert (context_getValue (code) == val);
757 }
758 else if (flagcode_hasChar (code))
759 {
760 llassert (code == FLG_COMMENTCHAR);
761 context_setCommentMarkerChar (DEFAULT_COMMENTCHAR);
762 }
763 else if (flagcode_hasString (code))
764 {
765 cstring val = cstring_undefined;
766
767 switch (code)
768 { /*@-loopswitchbreak@*/
769 case FLG_LARCHPATH:
770 {
771 cstring larchpath = cstring_makeLiteralTemp (getenv (LARCH_PATH));
772
773 if (cstring_isDefined (larchpath))
774 {
775 val = cstring_copy (larchpath);
776 }
777 else
778 {
779 val = osd_pathListConcat (".", LARCHDIR);
780 }
781
782 break;
783 }
784 case FLG_LCLIMPORTDIR:
785 {
786 cstring lclimpordir = cstring_makeLiteralTemp (getenv (LCLIMPORTDIR));
787
788 if (cstring_isDefined (lclimpordir))
789 {
790 val = cstring_copy (lclimpordir);
791 }
792 else
793 {
794 val = osd_pathListConcat (".", LCLDIR);
795 }
796
797 break;
798 }
799 case FLG_TMPDIR:
800 val = osd_getTempDir(); break;
801 case FLG_BOOLTYPE:
802 val = cstring_makeLiteral (DEFAULT_BOOLTYPE); break;
803 case FLG_BOOLFALSE:
804 val = cstring_makeLiteral ("false"); break;
805 case FLG_BOOLTRUE:
806 val = cstring_makeLiteral ("true"); break;
807 case FLG_MACROVARPREFIX:
808 val = cstring_makeLiteral ("m_"); break;
809 case FLG_SYSTEMDIRS:
810 val = cstring_makeLiteral (DEFAULT_SYSTEMDIRS); break;
811 default:
812 break;
813 } /*@=loopswitchbreak@*/
814
815 context_setString (code, val);
816 }
817 else
818 {
819 ; /* nothing to set */
820 }
821 } end_allFlagCodes;
822
823 /*
824 ** These flags are true by default.
825 */
826
827 /* eventually, move this into flags.def */
828
829 gc.flags[FLG_STREAMOVERWRITE] = TRUE;
830 gc.flags[FLG_OBVIOUSLOOPEXEC] = TRUE;
831 gc.flags[FLG_MODIFIES] = TRUE;
832 gc.flags[FLG_NESTCOMMENT] = TRUE;
833 gc.flags[FLG_GLOBALS] = TRUE;
834 gc.flags[FLG_FULLINITBLOCK] = TRUE;
835 gc.flags[FLG_INITSIZE] = TRUE;
836 gc.flags[FLG_INITALLELEMENTS] = TRUE;
837 gc.flags[FLG_NULLINIT] = TRUE;
838
839 gc.flags[FLG_STRINGLITTOOLONG] = TRUE;
840 gc.flags[FLG_MACROCONSTDIST] = TRUE;
841 gc.flags[FLG_LIKELYBOOL] = TRUE;
842 gc.flags[FLG_ZEROPTR] = TRUE;
843 gc.flags[FLG_NUMLITERAL] = TRUE;
844 gc.flags[FLG_DUPLICATEQUALS] = TRUE;
845 gc.flags[FLG_SKIPSTDHEADERS] = TRUE;
846 gc.flags[FLG_SKIPPOSIXHEADERS] = FALSE;
847 gc.flags[FLG_SYSTEMDIREXPAND] = TRUE;
848 gc.flags[FLG_UNRECOGCOMMENTS] = TRUE;
849 gc.flags[FLG_UNRECOGFLAGCOMMENTS] = TRUE;
850 gc.flags[FLG_CASTFCNPTR] = TRUE;
851 gc.flags[FLG_DOLCS] = TRUE;
852 gc.flags[FLG_USEVARARGS] = TRUE;
853 gc.flags[FLG_MAINTYPE] = TRUE;
854 gc.flags[FLG_SPECMACROS] = TRUE;
855 gc.flags[FLG_REDEF] = TRUE;
856 gc.flags[FLG_MACRONEXTLINE] = TRUE;
857
858 gc.flags[FLG_SIZEOFFORMALARRAY] = TRUE;
859 gc.flags[FLG_FIXEDFORMALARRAY] = TRUE;
860
861 gc.flags[FLG_UNRECOGDIRECTIVE] = TRUE;
862 gc.flags[FLG_WARNUSE] = TRUE;
863 gc.flags[FLG_PREDASSIGN] = TRUE;
864 gc.flags[FLG_MODOBSERVER] = TRUE;
865 gc.flags[FLG_MACROVARPREFIXEXCLUDE] = TRUE;
866 gc.flags[FLG_EXTERNALNAMECASEINSENSITIVE] = TRUE;
867
868 gc.flags[FLG_PARAMIMPTEMP] = TRUE;
869 gc.flags[FLG_RETIMPONLY] = TRUE;
870 gc.flags[FLG_GLOBIMPONLY] = TRUE;
871 gc.flags[FLG_STRUCTIMPONLY] = TRUE;
872 gc.flags[FLG_PREPROC] = TRUE;
873 gc.flags[FLG_NAMECHECKS] = TRUE;
874 gc.flags[FLG_FORMATCODE] = TRUE;
875 gc.flags[FLG_FORMATTYPE] = TRUE;
876 gc.flags[FLG_BADFLAG] = TRUE;
877 gc.flags[FLG_WARNFLAGS] = TRUE;
878 gc.flags[FLG_WARNRC] = TRUE;
879 gc.flags[FLG_FILEEXTENSIONS] = TRUE;
880 gc.flags[FLG_WARNUNIXLIB] = FALSE;
881 gc.flags[FLG_WARNPOSIX] = TRUE;
882 gc.flags[FLG_SHOWCOL] = TRUE;
883 gc.flags[FLG_SHOWDEEPHISTORY] = FALSE; /* TRUE; */
884 gc.flags[FLG_SHOWFUNC] = TRUE;
885 gc.flags[FLG_SUPCOUNTS] = TRUE;
886 gc.flags[FLG_HINTS] = TRUE;
887 gc.flags[FLG_SYNTAX] = TRUE;
888 gc.flags[FLG_TYPE] = TRUE;
889 gc.flags[FLG_INCOMPLETETYPE] = TRUE;
890 gc.flags[FLG_ABSTRACT] = TRUE;
891 gc.flags[FLG_NUMABSTRACT] = TRUE;
892 gc.flags[FLG_ITERBALANCE] = TRUE;
893 gc.flags[FLG_ITERYIELD] = TRUE;
894 gc.flags[FLG_DUPLICATECASES] = TRUE;
895 gc.flags[FLG_ALWAYSEXITS] = TRUE;
896 gc.flags[FLG_EMPTYRETURN] = TRUE;
897 gc.flags[FLG_MACRORETURN] = TRUE;
898 gc.flags[FLG_UNRECOG] = TRUE;
899 gc.flags[FLG_SYSTEMUNRECOG] = TRUE;
900 gc.flags[FLG_LINTCOMMENTS] = TRUE;
901 gc.flags[FLG_ACCESSCZECH] = TRUE;
902 gc.flags[FLG_ACCESSMODULE] = TRUE;
903 gc.flags[FLG_ACCESSFILE] = TRUE;
904 gc.flags[FLG_MACROVARPREFIX] = TRUE;
905
906 gc.flags[FLG_ANNOTATIONERROR] = TRUE;
907 gc.flags[FLG_COMMENTERROR] = TRUE;
908
909 /*
910 ** Changed for version 2.4.
911 */
912
913 gc.flags[FLG_GNUEXTENSIONS] = TRUE;
914
915 /*
916 Changed for 3.0.0.19
917 */
918
919 /* commenting ou until some output issues are fixed */
920 gc.flags[FLG_ORCONSTRAINT] = TRUE;
921
922 gc.flags[FLG_CONSTRAINTLOCATION] = TRUE;
923
924 /*drl 1/18/2002*/
925 gc.flags[FLG_WARNSYSFILES] = TRUE;
926
927 /*
928 ** On by default for Win32, but not Unix
929 */
930
931 # if defined (WIN32) || defined (OS2)
932 gc.flags[FLG_PARENFILEFORMAT] = TRUE;
933 gc.flags[FLG_CASEINSENSITIVEFILENAMES] = TRUE;
934 # endif
935 }
936
937 /*
938 ** C is way-lame, and you can initialize an array to a constant except where
939 ** it is declared. Hence, a macro is used to set the modeflags.
940 */
941
942 /*@notfunction@*/
943 # define SETFLAGS() \
944 { int i = 0; while (modeflags[i] != INVALID_FLAG) { \
945 if (!flagcode_isModeFlag (modeflags[i])) \
946 { llbug (message ("not a mode flag: %s", \
947 flagcode_unparse (modeflags[i]))); } \
948 else { context_setFlag (modeflags[i], TRUE, g_currentloc); } i++; }}
949
950 static void
951 context_setModeAux (cstring s, bool warn)
952 {
953 intSet setflags = intSet_new ();
954
955 allFlagCodes (code)
956 {
957 if (flagcode_isModeFlag (code))
958 {
959 if (gc.setGlobally[code])
960 {
961 (void) intSet_insert (setflags, (int) code);
962 }
963 }
964 } end_allFlagCodes;
965
966 if (!intSet_isEmpty (setflags))
967 {
968 cstring rflags = cstring_undefined;
969 int num = 0;
970
971 intSet_elements (setflags, el)
972 {
973 if (cstring_isUndefined (rflags))
974 {
975 rflags = cstring_copy (flagcode_unparse ((flagcode) (el)));
976 }
977 else
978 {
979 rflags = message ("%q, %s", rflags,
980 flagcode_unparse ((flagcode) el));
981 }
982
983 num++;
984 if (num > 4 && intSet_size (setflags) > 6)
985 {
986 rflags = message ("%q, (%d others) ...", rflags,
987 intSet_size (setflags) - num);
988 break;
989 }
990 } end_intSet_elements ;
991
992 if (warn)
993 {
994 voptgenerror (FLG_WARNFLAGS,
995 message ("Setting mode %s after setting mode flags will "
996 "override set values of flags: %s",
997 s, rflags),
998 g_currentloc);
999 }
1000
1001 cstring_free (rflags);
1002 }
1003
1004 intSet_free (setflags);
1005
1006 context_resetModeFlags ();
1007
1008 if (cstring_equalLit (s, "standard"))
1009 {
1010 flagcode modeflags[] =
1011 {
1012 FLG_ENUMINT, FLG_MACROMATCHNAME,
1013 FLG_STRINGLITNOROOM,
1014 FLG_STRINGLITNOROOMFINALNULL,
1015 FLG_MACROUNDEF, FLG_RELAXQUALS,
1016 FLG_USEALLGLOBS, FLG_CHECKSTRICTGLOBALS,
1017 FLG_CHECKSTRICTGLOBALIAS,
1018 FLG_CHECKEDGLOBALIAS,
1019 FLG_CHECKMODGLOBALIAS,
1020 FLG_PREDBOOLOTHERS, FLG_PREDBOOLINT,
1021 FLG_UNSIGNEDCOMPARE,
1022 FLG_PARAMUNUSED, FLG_VARUNUSED, FLG_FUNCUNUSED,
1023 FLG_TYPEUNUSED,
1024 FLG_ABSTRACTCOMPARE,
1025 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED, FLG_FIELDUNUSED,
1026 FLG_PTRNUMCOMPARE, FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
1027 FLG_MUTREP, FLG_NOEFFECT, FLG_IMPTYPE,
1028 FLG_RETVALOTHER, FLG_RETVALBOOL, FLG_RETVALINT,
1029 FLG_SPECUNDEF, FLG_INCONDEFS, FLG_INCONDEFSLIB, FLG_MISPLACEDSHAREQUAL,
1030 FLG_MATCHFIELDS,
1031 FLG_FORMATCONST,
1032 FLG_MACROPARAMS, FLG_MACROASSIGN, FLG_SEFPARAMS,
1033 FLG_MACROSTMT, FLG_MACROPARENS,
1034 FLG_MACROFCNDECL,
1035 FLG_MACROCONSTDECL,
1036 FLG_MACROREDEF, FLG_INFLOOPS, FLG_UNREACHABLE,
1037 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE, FLG_USEDEF,
1038 FLG_FIRSTCASE,
1039 FLG_NESTEDEXTERN,
1040 FLG_NUMLITERAL,
1041 FLG_ZEROBOOL,
1042
1043 /* memchecks flags */
1044 FLG_NULLDEREF,
1045 FLG_NULLSTATE, FLG_NULLASSIGN,
1046 FLG_NULLPASS, FLG_NULLRET,
1047 FLG_ALLOCMISMATCH,
1048
1049 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF,
1050 FLG_RETSTACK,
1051
1052 /* memtrans flags */
1053 FLG_EXPOSETRANS,
1054 FLG_OBSERVERTRANS,
1055 FLG_DEPENDENTTRANS,
1056 FLG_NEWREFTRANS,
1057 FLG_ONLYTRANS,
1058 FLG_OWNEDTRANS,
1059 FLG_FRESHTRANS,
1060 FLG_SHAREDTRANS,
1061 FLG_TEMPTRANS,
1062 FLG_KEPTTRANS,
1063 FLG_REFCOUNTTRANS,
1064 FLG_STATICTRANS,
1065 FLG_UNKNOWNTRANS,
1066 FLG_KEEPTRANS,
1067 FLG_IMMEDIATETRANS,
1068 FLG_NUMABSTRACTCAST,
1069 FLG_EXPORTLOCAL,
1070
1071 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1072 FLG_MUSTFREEONLY,
1073 FLG_MUSTFREEFRESH,
1074 FLG_MUSTDEFINE, FLG_GLOBSTATE,
1075 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1076 FLG_MEMIMPLICIT,
1077 FLG_BRANCHSTATE,
1078 FLG_STATETRANSFER, FLG_STATEMERGE,
1079 FLG_EVALORDER, FLG_SHADOW, FLG_READONLYSTRINGS,
1080 FLG_EXITARG,
1081 FLG_IMPCHECKEDSPECGLOBALS,
1082 FLG_MODGLOBS, FLG_WARNLINTCOMMENTS,
1083 FLG_IFEMPTY, FLG_REALCOMPARE,
1084 FLG_BOOLOPS, FLG_PTRNEGATE,
1085 FLG_SHIFTNEGATIVE,
1086 FLG_SHIFTIMPLEMENTATION,
1087 FLG_BUFFEROVERFLOWHIGH,
1088 FLG_BUFFEROVERFLOW,
1089 INVALID_FLAG
1090 } ;
1091
1092 SETFLAGS ();
1093 }
1094 else if (cstring_equalLit (s, "weak"))
1095 {
1096 flagcode modeflags[] =
1097 {
1098 FLG_BOOLINT, FLG_CHARINT, FLG_FLOATDOUBLE, FLG_LONGINT, FLG_SHORTINT,
1099 FLG_ENUMINT, FLG_RELAXQUALS, FLG_FORWARDDECL,
1100 FLG_CHARINDEX, FLG_NUMABSTRACTINDEX, FLG_ABSTVOIDP, FLG_USEALLGLOBS,
1101 FLG_CHARUNSIGNEDCHAR,
1102 FLG_PREDBOOLOTHERS,
1103 FLG_NUMABSTRACTLIT,
1104 FLG_VARUNUSED, FLG_FUNCUNUSED,
1105 FLG_TYPEUNUSED,
1106 FLG_CHECKSTRICTGLOBALS, FLG_MACROMATCHNAME,
1107 FLG_RETVALOTHER,
1108 FLG_IFEMPTY,
1109 FLG_BUFFEROVERFLOWHIGH,
1110 FLG_RETSTACK, FLG_PTRNEGATE,
1111 FLG_STATETRANSFER, FLG_STATEMERGE,
1112 FLG_LONGUNSIGNEDINTEGRAL,
1113 FLG_LONGUNSIGNEDUNSIGNEDINTEGRAL,
1114 FLG_NUMLITERAL,
1115 FLG_CHARINTLITERAL,
1116 FLG_ZEROBOOL,
1117 FLG_BUFFEROVERFLOWHIGH,
1118 FLG_STRINGLITNOROOM,
1119 FLG_STRINGLITNOROOMFINALNULL,
1120 INVALID_FLAG
1121 } ;
1122
1123 SETFLAGS ();
1124 }
1125 else if (cstring_equalLit (s, "checks"))
1126 {
1127 flagcode modeflags[] =
1128 {
1129 FLG_EXPORTLOCAL, FLG_IMPTYPE,
1130 FLG_NUMABSTRACTCAST,
1131 FLG_ABSTRACTCOMPARE,
1132 FLG_STATETRANSFER, FLG_STATEMERGE,
1133 FLG_CHECKSTRICTGLOBALIAS,
1134 FLG_CHECKEDGLOBALIAS,
1135 FLG_CHECKMODGLOBALIAS,
1136 FLG_UNCHECKEDGLOBALIAS,
1137 FLG_FORMATCONST,
1138 FLG_STRINGLITNOROOM,
1139 FLG_STRINGLITNOROOMFINALNULL,
1140 FLG_STRINGLITSMALLER,
1141 FLG_EXITARG, FLG_PTRNUMCOMPARE,
1142 FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
1143 FLG_MACROUNDEF, FLG_MUSTMOD, FLG_ALLGLOBALS,
1144 FLG_PREDBOOLOTHERS, FLG_PREDBOOLPTR, FLG_PREDBOOLINT,
1145 FLG_USEALLGLOBS, FLG_MUTREP, FLG_RETALIAS,
1146 FLG_RETEXPOSE, FLG_ASSIGNEXPOSE, FLG_CASTEXPOSE,
1147 FLG_FUNCUNUSED, FLG_GLOBALSIMPMODIFIESNOTHING,
1148 FLG_TYPEUNUSED, FLG_FIELDUNUSED, FLG_PARAMUNUSED, FLG_VARUNUSED,
1149 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED,
1150 FLG_NOEFFECT, FLG_EXPORTHEADER, FLG_EXPORTHEADERVAR,
1151 FLG_RETVALOTHER, FLG_RETVALBOOL, FLG_RETVALINT,
1152 FLG_SPECUNDEF, FLG_IMPCHECKMODINTERNALS,
1153 FLG_DECLUNDEF, FLG_INCONDEFS, FLG_INCONDEFSLIB,
1154 FLG_MISPLACEDSHAREQUAL, FLG_REDUNDANTSHAREQUAL,
1155 FLG_NUMABSTRACTPRINT,
1156 FLG_MATCHFIELDS,
1157 FLG_MACROPARAMS,
1158 FLG_MACROASSIGN,
1159 FLG_DECLPARAMMATCH,
1160 FLG_FCNDEREF,
1161 FLG_FIRSTCASE,
1162 FLG_SEFPARAMS, FLG_SEFUNSPEC, FLG_MACROSTMT, FLG_MACROPARENS,
1163 FLG_MACROCONSTDECL,
1164 FLG_MACROFCNDECL,
1165 FLG_MACROREDEF,
1166 FLG_INFLOOPS, FLG_INFLOOPSUNCON,
1167 FLG_UNREACHABLE,
1168 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE,
1169 FLG_EVALORDER, FLG_USEDEF,
1170 FLG_NESTEDEXTERN,
1171
1172 /* warn use flags */
1173 FLG_MULTITHREADED, FLG_PORTABILITY, FLG_SUPERUSER, FLG_IMPLEMENTATIONOPTIONAL,
1174 FLG_BUFFEROVERFLOWHIGH,
1175
1176 /* memchecks flags */
1177
1178 FLG_NULLSTATE, FLG_NULLDEREF, FLG_NULLASSIGN,
1179 FLG_NULLPASS, FLG_NULLRET,
1180 FLG_ALLOCMISMATCH,
1181
1182 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF, FLG_RETSTACK,
1183
1184 /* memtrans flags */
1185 FLG_EXPOSETRANS,
1186 FLG_OBSERVERTRANS,
1187 FLG_DEPENDENTTRANS,
1188 FLG_NEWREFTRANS,
1189 FLG_ONLYTRANS,
1190 FLG_OWNEDTRANS,
1191 FLG_FRESHTRANS,
1192 FLG_SHAREDTRANS,
1193 FLG_TEMPTRANS,
1194 FLG_KEPTTRANS,
1195 FLG_REFCOUNTTRANS,
1196 FLG_STATICTRANS,
1197 FLG_UNKNOWNTRANS,
1198 FLG_STATICINITTRANS,
1199 FLG_UNKNOWNINITTRANS,
1200 FLG_KEEPTRANS,
1201 FLG_IMMEDIATETRANS,
1202 FLG_ONLYUNQGLOBALTRANS,
1203 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1204 FLG_MUSTFREEONLY,
1205 FLG_MUSTFREEFRESH,
1206 FLG_MUSTDEFINE, FLG_GLOBSTATE,
1207 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1208 FLG_MEMIMPLICIT,
1209 FLG_BRANCHSTATE,
1210 FLG_NULLPOINTERARITH,
1211 FLG_SHADOW, FLG_DEPARRAYS,
1212 FLG_REDECL, FLG_READONLYSTRINGS, FLG_READONLYTRANS,
1213 FLG_LOOPLOOPBREAK, FLG_SWITCHLOOPBREAK, FLG_MODGLOBS,
1214 FLG_CHECKSTRICTGLOBALS, FLG_IMPCHECKEDSPECGLOBALS,
1215 FLG_MACROMATCHNAME, FLG_WARNLINTCOMMENTS,
1216 FLG_INCLUDENEST, FLG_ISORESERVED, FLG_CPPNAMES,
1217 FLG_NOPARAMS, FLG_IFEMPTY, FLG_WHILEEMPTY, FLG_REALCOMPARE, FLG_REALRELATECOMPARE,
1218 FLG_BOOLOPS, FLG_SHIFTNEGATIVE,
1219 FLG_SHIFTIMPLEMENTATION,
1220 FLG_BUFFEROVERFLOWHIGH, FLG_BUFFEROVERFLOW,
1221 INVALID_FLAG } ;
1222
1223 SETFLAGS ();
1224 }
1225 else if (cstring_equalLit (s, "strict"))
1226 {
1227 flagcode modeflags[] =
1228 {
1229 FLG_ABSTRACTCOMPARE,
1230 FLG_CHECKSTRICTGLOBALIAS,
1231 FLG_NUMABSTRACTCAST,
1232 FLG_CHECKEDGLOBALIAS,
1233 FLG_CHECKMODGLOBALIAS,
1234 FLG_UNCHECKEDGLOBALIAS,
1235 FLG_MODFILESYSTEM,
1236 FLG_MACROMATCHNAME,
1237 FLG_FORMATCONST,
1238 FLG_NUMABSTRACTPRINT,
1239 FLG_STRINGLITNOROOM,
1240 FLG_STRINGLITNOROOMFINALNULL,
1241 FLG_STRINGLITSMALLER,
1242 FLG_STATETRANSFER, FLG_STATEMERGE,
1243 FLG_MACROUNDEF, FLG_MUTREP, FLG_MUSTMOD,
1244 FLG_ALLGLOBALS, FLG_IMPTYPE,
1245 FLG_MODNOMODS, FLG_MODGLOBSUNSPEC, FLG_MODSTRICTGLOBSUNSPEC,
1246 FLG_GLOBUNSPEC, FLG_SIZEOFTYPE,
1247 FLG_EXPORTHEADER, FLG_EXPORTHEADERVAR,
1248 FLG_NOPARAMS, FLG_OLDSTYLE, FLG_EXITARG,
1249 FLG_RETSTACK,
1250 FLG_FCNDEREF,
1251 FLG_ONLYUNQGLOBALTRANS,
1252 FLG_GLOBALSIMPMODIFIESNOTHING,
1253 FLG_PREDBOOLOTHERS, FLG_PREDBOOLPTR, FLG_PREDBOOLINT,
1254 FLG_INTERNALGLOBS, FLG_INTERNALGLOBSNOGLOBS,
1255 FLG_USEALLGLOBS, FLG_RETALIAS,
1256 FLG_MODGLOBS, FLG_MODGLOBSUNSPEC, FLG_MODGLOBSUNCHECKED,
1257 FLG_RETEXPOSE, FLG_ASSIGNEXPOSE, FLG_CASTEXPOSE,
1258 FLG_NOEFFECTUNCON, FLG_EVALORDERUNCON,
1259 FLG_FUNCUNUSED,
1260 FLG_EXPORTITER, FLG_EXPORTCONST,
1261 FLG_TYPEUNUSED, FLG_FIELDUNUSED, FLG_PARAMUNUSED, FLG_TOPUNUSED,
1262 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED,
1263 FLG_VARUNUSED,
1264 FLG_NULLPOINTERARITH, FLG_POINTERARITH,
1265 FLG_PTRNUMCOMPARE,
1266 FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
1267 FLG_NOEFFECT, FLG_RETVALINT, FLG_RETVALBOOL, FLG_RETVALOTHER,
1268 FLG_ISORESERVED, FLG_ISORESERVEDLOCAL, FLG_CPPNAMES,
1269 FLG_RETVALBOOL, FLG_RETVALINT, FLG_SPECUNDEF,
1270 FLG_DECLUNDEF, FLG_STRICTOPS, FLG_INCONDEFS,
1271 FLG_MISPLACEDSHAREQUAL, FLG_REDUNDANTSHAREQUAL,
1272 FLG_INCONDEFSLIB, FLG_MATCHFIELDS, FLG_EXPORTMACRO, FLG_EXPORTVAR,
1273 FLG_EXPORTFCN, FLG_EXPORTTYPE, FLG_EXPORTLOCAL, FLG_MACROPARAMS,
1274 FLG_MACROASSIGN,
1275 FLG_SEFPARAMS, FLG_SEFUNSPEC, FLG_MACROSTMT, FLG_MACROPARENS,
1276 FLG_MACROFCNDECL,
1277 FLG_MACROCONSTDECL,
1278 FLG_MACROREDEF, FLG_MACROEMPTY,
1279 FLG_INFLOOPS, FLG_INFLOOPSUNCON,
1280 FLG_UNREACHABLE,
1281 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE, FLG_USEDEF,
1282 FLG_EVALORDER,
1283 FLG_MODUNCON, FLG_MODUNCONNOMODS, FLG_MODINTERNALSTRICT,
1284 FLG_MODOBSERVERUNCON,
1285
1286 FLG_NESTEDEXTERN,
1287 FLG_FIRSTCASE,
1288
1289 /* warn use flags */
1290 FLG_MULTITHREADED, FLG_PORTABILITY, FLG_SUPERUSER, FLG_IMPLEMENTATIONOPTIONAL,
1291 FLG_BUFFEROVERFLOWHIGH,
1292 FLG_BUFFEROVERFLOW, FLG_TOCTOU,
1293
1294 /* memchecks flags */
1295 FLG_NULLSTATE, FLG_NULLDEREF, FLG_NULLASSIGN,
1296 FLG_NULLPASS, FLG_NULLRET,
1297 FLG_ALLOCMISMATCH,
1298 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF,
1299
1300 /* memory checking flags */
1301 FLG_BOUNDSREAD, FLG_BOUNDSWRITE,
1302 FLG_LIKELYBOUNDSREAD, FLG_LIKELYBOUNDSWRITE,
1303 FLG_CHECKPOST,
1304
1305 /* memtrans flags */
1306 FLG_EXPOSETRANS,
1307 FLG_OBSERVERTRANS,
1308 FLG_DEPENDENTTRANS,
1309 FLG_NEWREFTRANS,
1310 FLG_ONLYTRANS,
1311 FLG_OWNEDTRANS,
1312 FLG_FRESHTRANS,
1313 FLG_SHAREDTRANS,
1314 FLG_TEMPTRANS,
1315 FLG_KEPTTRANS,
1316 FLG_REFCOUNTTRANS,
1317 FLG_STATICTRANS,
1318 FLG_UNKNOWNTRANS,
1319 FLG_KEEPTRANS,
1320 FLG_IMMEDIATETRANS,
1321 FLG_STATICINITTRANS,
1322 FLG_UNKNOWNINITTRANS,
1323
1324 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1325 FLG_MUSTFREEONLY,
1326 FLG_MUSTFREEFRESH,
1327 FLG_MUSTDEFINE, FLG_GLOBSTATE,
1328 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1329 FLG_MEMIMPLICIT,
1330 FLG_BRANCHSTATE,
1331
1332 FLG_DECLPARAMNAME, FLG_DECLPARAMMATCH,
1333
1334 FLG_SHADOW, FLG_DEPARRAYS,
1335 FLG_STRICTDESTROY, FLG_STRICTUSERELEASED, FLG_STRICTBRANCHSTATE,
1336 FLG_REDECL, FLG_READONLYSTRINGS, FLG_READONLYTRANS,
1337 FLG_LOOPLOOPBREAK, FLG_LOOPSWITCHBREAK, FLG_SWITCHLOOPBREAK,
1338 FLG_SWITCHSWITCHBREAK, FLG_LOOPLOOPCONTINUE,
1339 FLG_CHECKSTRICTGLOBALS, FLG_IMPCHECKEDSPECGLOBALS,
1340 FLG_ALLGLOBALS, FLG_IMPCHECKEDSTRICTGLOBALS,
1341 FLG_IMPCHECKEDSTRICTSTATICS,
1342 FLG_IMPCHECKEDSTRICTSPECGLOBALS,
1343 FLG_IMPCHECKMODINTERNALS,
1344 FLG_WARNMISSINGGLOBALS, FLG_WARNMISSINGGLOBALSNOGLOBS,
1345 FLG_WARNLINTCOMMENTS, FLG_ISORESERVEDLOCAL,
1346 FLG_INCLUDENEST, FLG_STRINGLITERALLEN,
1347 FLG_NUMSTRUCTFIELDS, FLG_NUMENUMMEMBERS,
1348 FLG_CONTROLNESTDEPTH,
1349 FLG_FORBLOCK, FLG_WHILEBLOCK,
1350 FLG_FOREMPTY, FLG_WHILEEMPTY,
1351 FLG_IFEMPTY, FLG_IFBLOCK,
1352 FLG_ELSEIFCOMPLETE,
1353 FLG_REALCOMPARE, FLG_BOOLOPS, FLG_REALRELATECOMPARE,
1354 FLG_SYSTEMDIRERRORS, FLG_UNUSEDSPECIAL,
1355
1356 FLG_SHIFTNEGATIVE,
1357 FLG_SHIFTIMPLEMENTATION,
1358 FLG_BITWISEOPS,
1359 FLG_BUFFEROVERFLOWHIGH, FLG_BUFFEROVERFLOW,
1360 INVALID_FLAG
1361 } ;
1362
1363 SETFLAGS ();
1364 }
1365 else
1366 {
1367 llcontbug (message ("context_setMode: bad mode: %s", s));
1368 }
1369 }
1370
1371 void
1372 context_setMode (cstring s)
1373 {
1374 context_setModeAux (s, TRUE);
1375 }
1376
1377 void
1378 context_setModeNoWarn (cstring s)
1379 {
1380 context_setModeAux (s, FALSE);
1381 }
1382
1383
1384 bool
1385 context_isSystemDir (cstring dir)
1386 {
1387 return osd_pathPrefixInPathList (dir, context_getString (FLG_SYSTEMDIRS));
1388 }
1389
1390 void
1391 context_addFileAccessType (typeId t)
1392 {
1393 cstring base;
1394
1395 if (context_inFunctionLike ())
1396 {
1397 gc.acct = typeIdSet_insert (gc.acct, t);
1398 }
1399
1400 gc.facct = typeIdSet_insert (gc.facct, t);
1401
1402 base = fileloc_getBase (g_currentloc);
1403 insertModuleAccess (base, t);
1404 DPRINTF (("Add file access: %s / %s", typeIdSet_unparse (gc.facct),
1405 typeIdSet_unparse (gc.acct)));
1406 }
1407
1408 void
1409 context_removeFileAccessType (typeId t)
1410 {
1411 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
1412 || gc.kind == CX_UNKNOWNMACRO)
1413 {
1414 gc.acct = typeIdSet_removeFresh (gc.acct, t);
1415 }
1416
1417 gc.facct = typeIdSet_removeFresh (gc.facct, t);
1418 gc.nacct = typeIdSet_insert (gc.nacct, t);
1419 }
1420
1421 void context_enterFunctionHeader (void)
1422 {
1423 if (context_getFlag (FLG_GRAMMAR))
1424 {
1425 lldiagmsg (message ("Enter function header: %q", context_unparse ()));
1426 }
1427
1428 if (gc.kind != CX_GLOBAL)
1429 {
1430 llparseerror (cstring_makeLiteral
1431 ("Likely parse error. Function header outside global context."));
1432 return;
1433 }
1434 DPRINTF (("Enter function header!"));
1435 gc.inFunctionHeader = TRUE;
1436 }
1437
1438 void context_exitFunctionHeader (void)
1439 {
1440 if (context_getFlag (FLG_GRAMMAR))
1441 {
1442 lldiagmsg (message ("Exit function header: %q", context_unparse ()));
1443 }
1444
1445 DPRINTF (("Exit function header!"));
1446 gc.inFunctionHeader = FALSE;
1447 }
1448
1449 bool context_inFunctionHeader (void)
1450 {
1451 return (gc.inFunctionHeader);
1452 }
1453
1454 void context_enterFunctionDeclaration (uentry e)
1455 {
1456 if (context_getFlag (FLG_GRAMMAR))
1457 {
1458 lldiagmsg (message ("Enter function declaration: %q", context_unparse ()));
1459 }
1460
1461 DPRINTF (("Enter function decl"));
1462 llassert (gc.savekind == CX_ERROR);
1463 gc.savekind = gc.kind;
1464 gc.savecont = gc.cont;
1465 gc.kind = CX_FCNDECLARATION;
1466 gc.cont.fcn = e;
1467 }
1468
1469 void context_exitFunctionDeclaration (void)
1470 {
1471 if (context_getFlag (FLG_GRAMMAR))
1472 {
1473 lldiagmsg (message ("Exit function declaration: %q", context_unparse ()));
1474 }
1475
1476 DPRINTF (("Exit function decl"));
1477 llassert (gc.savekind != CX_ERROR);
1478 llassert (gc.kind == CX_FCNDECLARATION);
1479 gc.kind = gc.savekind;
1480 gc.cont = gc.savecont;
1481
1482 gc.savekind = CX_ERROR;
1483
1484 if (context_getFlag (FLG_GRAMMAR))
1485 {
1486 lldiagmsg (message ("After exit function declaration: %q", context_unparse ()));
1487 }
1488 }
1489
1490 # ifdef DEADCODE
1491 bool context_inFunctionDeclaration (void)
1492 {
1493 return (gc.kind == CX_FCNDECLARATION);
1494 }
1495 # endif /* DEADCODE */
1496
1497 void
1498 context_enterMacro (/*@observer@*/ uentry e)
1499 {
1500 context_enterFunction (e);
1501 gc.kind = CX_MACROFCN;
1502 }
1503
1504 void
1505 context_enterUnknownMacro (/*@dependent@*/ uentry e)
1506 {
1507 llassert (uentry_isFunction (e));
1508 context_enterFunction (e);
1509 gc.kind = CX_UNKNOWNMACRO;
1510 }
1511
1512 void context_enterAndClause (exprNode e)
1513 {
1514 DPRINTF (("enter and clause: %s", exprNode_unparse (e)));
1515 usymtab_trueBranch (guardSet_copy (exprNode_getGuards (e)));
1516 pushClause (ANDCLAUSE);
1517 }
1518
1519 void context_enterOrClause (exprNode e)
1520 {
1521 usymtab_trueBranch (guardSet_invert (exprNode_getGuards (e)));
1522 pushClause (ORCLAUSE);
1523 }
1524
1525 bool context_inDeepLoop (void)
1526 {
1527 bool inLoop = FALSE;
1528
1529 clauseStack_elements (gc.clauses, el)
1530 {
1531 if (clause_isLoop (el))
1532 {
1533 if (inLoop)
1534 {
1535 return TRUE;
1536 }
1537
1538 inLoop = TRUE;
1539 }
1540 } end_clauseStack_elements;
1541
1542 return FALSE;
1543 }
1544
1545 bool context_inDeepSwitch (void)
1546 {
1547 bool inLoop = FALSE;
1548
1549 clauseStack_elements (gc.clauses, el)
1550 {
1551 if (clause_isSwitch (el))
1552 {
1553 if (inLoop)
1554 {
1555 return TRUE;
1556 }
1557
1558 inLoop = TRUE;
1559 }
1560 } end_clauseStack_elements;
1561
1562 return FALSE;
1563 }
1564
1565 bool context_inDeepLoopSwitch (void)
1566 {
1567 bool inLoop = FALSE;
1568
1569 clauseStack_elements (gc.clauses, el)
1570 {
1571 if (clause_isBreakable (el))
1572 {
1573 if (inLoop)
1574 {
1575 return TRUE;
1576 }
1577
1578 inLoop = TRUE;
1579 }
1580 } end_clauseStack_elements;
1581
1582 return FALSE;
1583 }
1584
1585 clause context_breakClause (void)
1586 {
1587 clauseStack_elements (gc.clauses, el)
1588 {
1589 if (clause_isSwitch (el))
1590 {
1591 return el;
1592 }
1593 else if (clause_isLoop (el))
1594 {
1595 return el;
1596 }
1597 else
1598 {
1599 ;
1600 }
1601 } end_clauseStack_elements;
1602
1603 return NOCLAUSE;
1604 }
1605
1606 clause context_nextBreakClause (void)
1607 {
1608 bool hasOne = FALSE;
1609
1610 clauseStack_elements (gc.clauses, el)
1611 {
1612 if (clause_isBreakable (el))
1613 {
1614 if (hasOne)
1615 {
1616 return el;
1617 }
1618 else
1619 {
1620 hasOne = TRUE;
1621 }
1622 }
1623 } end_clauseStack_elements;
1624
1625 return NOCLAUSE;
1626 }
1627
1628 bool context_inConditional (void)
1629 {
1630 clauseStack_elements (gc.clauses, el)
1631 {
1632 /*
1633 ** Should also include TRUECLAUSE and FALSECLAUSE, but need
1634 ** to distinguish if from ? for this
1635 */
1636
1637 if (clause_isBreakable (el) && (el != DOWHILECLAUSE))
1638 {
1639 return TRUE;
1640 }
1641 } end_clauseStack_elements;
1642
1643 return FALSE;
1644 }
1645
1646 void context_exitAndClause (exprNode pred, exprNode tbranch)
1647 {
1648 context_setJustPopped ();
1649
1650 llassert (gc.inclause == ANDCLAUSE);
1651
1652 usymtab_popAndBranch (pred, tbranch);
1653 clauseStack_pop (gc.clauses);
1654 gc.inclause = topClause (gc.clauses);
1655 }
1656
1657 void context_exitOrClause (exprNode pred, exprNode tbranch)
1658 {
1659 context_setJustPopped ();
1660
1661 llassert (gc.inclause == ORCLAUSE);
1662
1663 usymtab_popOrBranch (pred, tbranch);
1664 clauseStack_pop (gc.clauses);
1665 gc.inclause = topClause (gc.clauses);
1666 }
1667
1668 static void context_enterCondClauseAux (clause cl)
1669 /*@modifies gc@*/
1670 {
1671 pushClause (cl);
1672 }
1673
1674 static void context_enterTrueAux (exprNode e, clause cl)
1675 /*@modifies gc@*/
1676 {
1677 usymtab_trueBranch (guardSet_copy (exprNode_getGuards (e)));
1678 pushClause (cl);
1679 }
1680
1681 void context_enterIterClause (void)
1682 {
1683 context_enterTrueAux (exprNode_undefined, ITERCLAUSE);
1684 }
1685
1686 void context_enterDoWhileClause (void)
1687 {
1688 pushClause (DOWHILECLAUSE);
1689 }
1690
1691 void context_enterWhileClause (exprNode e)
1692 {
1693 context_enterTrueAux (e, WHILECLAUSE);
1694 }
1695
1696 void context_enterForClause (exprNode e)
1697 {
1698 context_enterTrueAux (e, FORCLAUSE);
1699 }
1700
1701 void context_enterTrueClause (exprNode e)
1702 {
1703 context_enterTrueAux (e, TRUECLAUSE);
1704 }
1705
1706 void context_enterSwitch (exprNode e)
1707 {
1708 DPRINTF (("Enter switch: %s", exprNode_unparse (e)));
1709 usymtab_switchBranch (e);
1710 context_enterCondClauseAux (SWITCHCLAUSE);
1711 }
1712
1713 void context_exitSwitch (exprNode e, bool allpaths)
1714 {
1715 usymtab_exitSwitch (e, allpaths);
1716
1717 while (clause_isCase (clauseStack_top (gc.clauses)))
1718 {
1719 clauseStack_pop (gc.clauses);
1720 }
1721
1722 context_exitClauseSimp ();
1723 }
1724
1725 void context_enterCaseClause (exprNode e)
1726 {
1727 bool branch = FALSE;
1728
1729 DPRINTF (("Enter case clause!"));
1730
1731 branch = usymtab_newCase (exprNode_undefined, e);
1732
1733 if (branch)
1734 {
1735 context_enterCondClauseAux (CASECLAUSE);
1736 }
1737 }
1738
1739 static void context_enterFalseClauseAux (exprNode e, clause cl)
1740 /*@modifies gc@*/
1741 {
1742 usymtab_altBranch (guardSet_invert (exprNode_getGuards (e)));
1743 gc.inclause = cl;
1744 clauseStack_switchTop (gc.clauses, cl);
1745 }
1746
1747 void context_enterFalseClause (exprNode e)
1748 {
1749 context_enterFalseClauseAux (e, FALSECLAUSE);
1750 }
1751
1752 void
1753 context_enterConstantMacro (/*@exposed@*/ /*@dependent@*/ uentry e)
1754 {
1755 gc.kind = CX_MACROCONST;
1756 gc.cont.fcn = e;
1757 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1758
1759 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1760 gc.nacct);
1761
1762
1763 usymtab_enterScope ();
1764 sRef_enterFunctionScope ();
1765
1766 gc.globs = globSet_undefined;
1767 globSet_clear (gc.globs_used);
1768 gc.mods = sRefSet_undefined;
1769 }
1770
1771 uentry context_getHeader (void)
1772 {
1773 if (!(context_inFunctionLike () || (gc.kind == CX_MACROCONST)))
1774 {
1775 llfatalbug (message ("context_getHeader: bad call: %q",
1776 context_unparse ()));
1777 }
1778
1779 return (gc.cont.fcn);
1780 }
1781
1782 void
1783 context_setFunctionDefined (fileloc loc)
1784 {
1785 switch (gc.kind)
1786 {
1787 case CX_UNKNOWNMACRO:
1788 case CX_FUNCTION:
1789 case CX_MACROFCN:
1790 uentry_setFunctionDefined (gc.cont.fcn, loc);
1791 break;
1792 default:
1793 /* (not a bug because of parse errors) */
1794 break;
1795 }
1796 }
1797
1798 void
1799 context_enterFunction (/*@exposed@*/ uentry e)
1800 {
1801 gc.kind = CX_FUNCTION;
1802 gc.cont.fcn = e;
1803
1804 DPRINTF (("Enter function: %s", uentry_unparse (e)));
1805
1806 if (uentry_hasAccessType (e))
1807 {
1808 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1809 gc.nacct);
1810 }
1811 else
1812 {
1813 gc.acct = gc.facct;
1814 }
1815
1816 DPRINTF (("Enter function: %s / %s", uentry_unparse (e),
1817 typeIdSet_unparse (gc.acct)));
1818
1819 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1820
1821 gc.globs = uentry_getGlobs (e);
1822 globSet_clear (gc.globs_used);
1823 gc.mods = uentry_getMods (e);
1824
1825 usymtab_enterFunctionScope (e);
1826 sRef_enterFunctionScope ();
1827 }
1828
1829 bool context_inOldStyleScope(void)
1830 {
1831 return (gc.kind == CX_OLDSTYLESCOPE);
1832 }
1833
1834 void
1835 context_enterOldStyleScope (void)
1836 {
1837 gc.kind = CX_OLDSTYLESCOPE;
1838 DPRINTF (("Enter old style scope!"));
1839 usymtab_enterFunctionScope (uentry_undefined);
1840 }
1841
1842 void
1843 context_completeOldStyleFunction (uentry e)
1844 {
1845 llassert (gc.kind == CX_OLDSTYLESCOPE);
1846
1847 gc.kind = CX_FUNCTION;
1848 gc.cont.fcn = e;
1849
1850 DPRINTF (("Enter function: %s", uentry_unparse (e)));
1851
1852 if (uentry_hasAccessType (e))
1853 {
1854 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1855 gc.nacct);
1856 }
1857 else
1858 {
1859 gc.acct = gc.facct;
1860 }
1861
1862 DPRINTF (("Enter function: %s / %s", uentry_unparse (e),
1863 typeIdSet_unparse (gc.acct)));
1864
1865 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1866
1867 if (!globSet_isEmpty (uentry_getGlobs (e)))
1868 {
1869 llfatalerror (message ("%q: Old-style function declaration uses a clause (rewrite with function parameters): %q",
1870 fileloc_unparse (g_currentloc), uentry_unparse (e)));
1871 }
1872
1873 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1874
1875 gc.globs = uentry_getGlobs (e);
1876 globSet_clear (gc.globs_used);
1877
1878 gc.mods = uentry_getMods (e);
1879
1880 if (!sRefSet_isEmpty (gc.mods))
1881 {
1882 llfatalerror (message ("%q: Old-style function declaration uses a clause (rewrite with function parameters): %q",
1883 fileloc_unparse (g_currentloc), uentry_unparse (e)));
1884 }
1885
1886 sRef_enterFunctionScope ();
1887 }
1888
1889 static bool context_checkStrictGlobals (void)
1890 {
1891 return (context_getFlag (FLG_CHECKSTRICTGLOBALS));
1892 }
1893
1894 static bool context_hasGlobs (void)
1895 {
1896 if (context_inFunctionLike ())
1897 {
1898 return (uentry_hasGlobs (gc.cont.fcn));
1899 }
1900 else
1901 {
1902 return (FALSE);
1903 }
1904 }
1905
1906 static bool context_checkCheckedGlobals (void)
1907 {
1908 return (context_getFlag (FLG_GLOBALS)
1909 && (context_getFlag (FLG_GLOBUNSPEC)
1910 || context_hasGlobs ()));
1911 }
1912
1913 static bool context_checkUnknownGlobals (void)
1914 {
1915 /* should be uentry_hasGlobs ? */
1916
1917 return (context_getFlag (FLG_ALLGLOBALS)
1918 && (context_getFlag (FLG_GLOBUNSPEC)
1919 || context_hasGlobs ()));
1920 }
1921
1922 static bool context_checkUncheckedGlobals (void)
1923 {
1924 return (FALSE);
1925 }
1926
1927 bool
1928 context_checkExport (uentry e)
1929 {
1930 if (!gc.anyExports) return FALSE;
1931
1932 if (uentry_isFunction (e)
1933 || (uentry_isVariable (e) && ctype_isFunction (uentry_getType (e))))
1934 {
1935 return context_maybeSet (FLG_EXPORTFCN);
1936 }
1937 else if (uentry_isExpandedMacro (e))
1938 {
1939 return context_maybeSet (FLG_EXPORTMACRO);
1940 }
1941 else if (uentry_isVariable (e))
1942 {
1943 return context_maybeSet (FLG_EXPORTVAR);
1944 }
1945 else if (uentry_isEitherConstant (e))
1946 {
1947 return context_maybeSet (FLG_EXPORTCONST);
1948 }
1949 else if (uentry_isIter (e) || uentry_isEndIter (e))
1950 {
1951 return context_maybeSet (FLG_EXPORTITER);
1952 }
1953 else if (uentry_isDatatype (e))
1954 {
1955 return context_maybeSet (FLG_EXPORTTYPE);
1956 }
1957 else
1958 {
1959 BADEXIT;
1960 }
1961 }
1962
1963 bool
1964 context_checkGlobUse (uentry glob)
1965 {
1966
1967 if (uentry_isCheckedStrict (glob))
1968 {
1969 return context_checkStrictGlobals ();
1970 }
1971 else if (uentry_isChecked (glob))
1972 {
1973 return context_checkCheckedGlobals ();
1974 }
1975 else if (uentry_isCheckedUnknown (glob) || uentry_isCheckMod (glob))
1976 {
1977 return context_checkUnknownGlobals ();
1978 }
1979 else
1980 {
1981 llassert (uentry_isUnchecked (glob));
1982
1983 return context_checkUncheckedGlobals ();
1984 }
1985 }
1986
1987 bool
1988 context_checkAliasGlob (uentry glob)
1989 {
1990 if (uentry_isCheckedStrict (glob))
1991 {
1992 return gc.flags[FLG_CHECKSTRICTGLOBALIAS];
1993 }
1994 else if (uentry_isChecked (glob))
1995 {
1996 return gc.flags[FLG_CHECKEDGLOBALIAS];
1997 }
1998 else if (uentry_isCheckMod (glob))
1999 {
2000 return gc.flags[FLG_CHECKMODGLOBALIAS];
2001 }
2002 else
2003 {
2004 llassert (uentry_isUnchecked (glob) || uentry_isCheckedUnknown (glob));
2005
2006 return gc.flags[FLG_UNCHECKEDGLOBALIAS];
2007 }
2008 }
2009
2010 bool context_checkInternalUse (void)
2011 {
2012 if (context_hasGlobs ())
2013 {
2014 return (gc.flags[FLG_INTERNALGLOBS]);
2015 }
2016 else
2017 {
2018 return (gc.flags[FLG_INTERNALGLOBSNOGLOBS]);
2019 }
2020 }
2021
2022 bool
2023 context_checkGlobMod (sRef el)
2024 {
2025 uentry ue = sRef_getUentry (el);
2026
2027 /* no: llassert (sRef_isFileOrGlobalScope (el)); also check local statics */
2028
2029 if (uentry_isCheckedModify (ue)
2030 || (!uentry_isUnchecked (ue) && (gc.flags[FLG_ALLGLOBALS])))
2031 {
2032 if (context_hasMods ())
2033 {
2034 return (gc.flags[FLG_MODGLOBS]);
2035 }
2036 else
2037 {
2038 if (uentry_isCheckedStrict (ue))
2039 {
2040 return (gc.flags[FLG_MODGLOBSUNSPEC]);
2041 }
2042 else
2043 {
2044 return (gc.flags[FLG_MODSTRICTGLOBSUNSPEC]);
2045 }
2046 }
2047 }
2048 else
2049 {
2050 if (context_hasMods ())
2051 {
2052 return (gc.flags[FLG_MODGLOBSUNCHECKED]);
2053 }
2054 else
2055 {
2056 return FALSE;
2057 }
2058 }
2059 }
2060
2061 void
2062 context_usedGlobal (/*@exposed@*/ sRef el)
2063 {
2064 if (!globSet_member (gc.globs_used, el))
2065 {
2066 /*
2067 ** The first time a global is used in a function, we need
2068 ** to clear the derived sRefs, since they were set for the
2069 ** previous function.
2070 */
2071
2072 sRef_clearDerived (el);
2073 gc.globs_used = globSet_insert (gc.globs_used, el);
2074 }
2075 }
2076
2077 /*@observer@*/ sRefSet
2078 context_modList (void)
2079 {
2080 return gc.mods;
2081 }
2082
2083 bool
2084 context_globAccess (sRef s)
2085 {
2086 llassert (sRef_isFileOrGlobalScope (s) || sRef_isKindSpecial (s));
2087 return (globSet_member (gc.globs, s));
2088 }
2089
2090 bool
2091 context_hasAccess (typeId t)
2092 {
2093 if (context_inFunctionLike ())
2094 {
2095 DPRINTF (("Access %d / %s",
2096 t, typeIdSet_unparse (gc.acct)));
2097 return (typeIdSet_member (gc.acct, t));
2098 }
2099 else
2100 {
2101 return (context_hasFileAccess (t));
2102 }
2103 }
2104
2105 bool
2106 context_hasFileAccess (typeId t)
2107 {
2108 return (typeIdSet_member (gc.facct, t));
2109 }
2110
2111 static /*@only@*/ cstring
2112 context_unparseAccess (void)
2113 {
2114 return (message ("%q / %q", typeIdSet_unparse (gc.acct),
2115 typeIdSet_unparse (gc.facct)));
2116 }
2117
2118 /*@only@*/ cstring
2119 context_unparseClauses (void)
2120 {
2121 return (clauseStack_unparse (gc.clauses));
2122 }
2123
2124 bool
2125 context_couldHaveAccess (typeId t)
2126 {
2127 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN || gc.kind == CX_UNKNOWNMACRO)
2128 {
2129 return (typeIdSet_member (gc.acct, t));
2130 }
2131 else
2132 {
2133 return (typeIdSet_member (gc.facct, t));
2134 }
2135 }
2136
2137 ctype
2138 context_getRetType (void)
2139 {
2140 ctype f = ctype_undefined;
2141
2142 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN)
2143 {
2144 f = uentry_getType (gc.cont.fcn);
2145 }
2146 else if (gc.kind == CX_UNKNOWNMACRO)
2147 {
2148 return ctype_unknown;
2149 }
2150 else
2151 {
2152 llcontbuglit ("context_getRetType: not in a function context");
2153 return ctype_unknown;
2154 }
2155
2156 if (!ctype_isFunction (f))
2157 {
2158 if (ctype_isKnown (f))
2159 {
2160 llbuglit ("context_getRetType: not a function");
2161 }
2162
2163 return ctype_unknown;
2164 }
2165 return (ctype_getReturnType (f));
2166 }
2167
2168 bool
2169 context_hasMods (void)
2170 {
2171 if (context_inFunctionLike ())
2172 {
2173 return (uentry_hasMods (gc.cont.fcn));
2174 }
2175 else
2176 {
2177 return FALSE;
2178 }
2179 }
2180
2181 void
2182 context_exitAllClauses (void)
2183 {
2184 while (!clauseStack_isEmpty (gc.clauses))
2185 {
2186 clause el = clauseStack_top (gc.clauses);
2187 gc.inclause = el;
2188
2189 if (clause_isNone (el))
2190 {
2191 usymtab_quietExitScope (g_currentloc);
2192 }
2193 else
2194 {
2195 context_setJustPopped ();
2196 if (el == FALSECLAUSE)
2197 {
2198 usymtab_popBranches (exprNode_undefined, exprNode_undefined, exprNode_undefined, FALSE, el);
2199 }
2200 else
2201 {
2202 usymtab_popTrueBranch (exprNode_undefined, exprNode_undefined, el);
2203 }
2204 llassert (clauseStack_top (gc.clauses) == el);
2205 }
2206
2207 clauseStack_pop (gc.clauses);
2208 }
2209
2210 clauseStack_clear (gc.clauses);
2211 gc.inclause = NOCLAUSE;
2212 }
2213
2214 void
2215 context_exitAllClausesQuiet (void)
2216 {
2217 while (!clauseStack_isEmpty (gc.clauses))
2218 {
2219 clause el = clauseStack_top (gc.clauses);
2220 gc.inclause = el;
2221
2222 usymtab_quietExitScope (g_currentloc);
2223 clauseStack_pop (gc.clauses);
2224 }
2225
2226 clauseStack_clear (gc.clauses);
2227 gc.inclause = NOCLAUSE;
2228 }
2229
2230 static
2231 void context_exitClauseSimp (void)
2232 {
2233 context_setJustPopped ();
2234 clauseStack_pop (gc.clauses);
2235 gc.inclause = topClause (gc.clauses);
2236 }
2237
2238 /*
2239 ** Expected to be used when a switch/case is imbricated with another block, e.g.
2240 ** a loop (while, do-while, for) as in Duff's device, but also the true/false
2241 ** branch of an if/else. Code like:
2242 **
2243 ** switch(a) {
2244 ** case X:
2245 ** ...
2246 ** break;
2247 ** case Y:
2248 ** ...
2249 ** <BLOCK-START> {
2250 ** ...
2251 ** case Z:
2252 ** ...
2253 ** } <BLOCK-END>
2254 ** }
2255 **
2256 ** is legal code in C, and this routine is used to handle such cases.
2257 */
2258 static
2259 void context_exitCaseClause (bool popsymtab)
2260 {
2261 if (popsymtab)
2262 {
2263 context_setJustPopped ();
2264 usymtab_popCaseBranch ();
2265 }
2266 clauseStack_pop (gc.clauses);
2267 gc.inclause = topClause (gc.clauses);
2268 }
2269
2270 void context_exitIterClause (exprNode body)
2271 {
2272 llassert (gc.inclause == ITERCLAUSE);
2273
2274 context_setJustPopped ();
2275
2276 if (context_getFlag (FLG_ITERLOOPEXEC))
2277 {
2278 usymtab_popTrueExecBranch (exprNode_undefined, body, ITERCLAUSE);
2279 }
2280 else
2281 {
2282 usymtab_popTrueBranch (exprNode_undefined, body, ITERCLAUSE);
2283 }
2284
2285 clauseStack_pop (gc.clauses);
2286 gc.inclause = topClause (gc.clauses);
2287 }
2288
2289 void context_exitWhileClause (exprNode pred, exprNode body)
2290 {
2291 guardSet invGuards = guardSet_invert (exprNode_getGuards (pred));
2292
2293 if (gc.inclause == CASECLAUSE)
2294 context_exitCaseClause (TRUE);
2295 if (gc.inclause != WHILECLAUSE)
2296 {
2297 llparseerror (cstring_makeLiteral
2298 ("Likely parse error. While clause is inconsistent."));
2299 return;
2300 }
2301
2302 context_setJustPopped ();
2303
2304 /*
2305 ** predicate must be false after while loop (unless there are breaks)
2306 */
2307
2308 if (context_getFlag (FLG_WHILELOOPEXEC))
2309 {
2310 usymtab_popTrueExecBranch (pred, body, WHILECLAUSE);
2311 }
2312 else
2313 {
2314 usymtab_popTrueBranch (pred, body, WHILECLAUSE);
2315 }
2316
2317 usymtab_addGuards (invGuards);
2318 guardSet_free (invGuards);
2319
2320 clauseStack_pop (gc.clauses);
2321 gc.inclause = topClause (gc.clauses);
2322 }
2323
2324 void context_exitDoWhileClause (exprNode pred)
2325 {
2326 guardSet invGuards = guardSet_invert (exprNode_getGuards (pred));
2327
2328 /* should investigate why doesn't do-while like popping symtab */
2329 if (gc.inclause == CASECLAUSE)
2330 context_exitCaseClause (FALSE);
2331 if (gc.inclause != DOWHILECLAUSE)
2332 {
2333 llparseerror (cstring_makeLiteral
2334 ("Likely parse error. Do-while clause is inconsistent."));
2335 return;
2336 }
2337
2338 context_setJustPopped ();
2339
2340 usymtab_addGuards (invGuards);
2341 guardSet_free (invGuards);
2342
2343 clauseStack_pop (gc.clauses);
2344 gc.inclause = topClause (gc.clauses);
2345 }
2346
2347 void context_exitForClause (exprNode forPred, exprNode body)
2348 {
2349 guardSet invGuards = guardSet_invert (exprNode_getForGuards (forPred));
2350
2351 if (gc.inclause == CASECLAUSE)
2352 context_exitCaseClause (TRUE);
2353 if (gc.inclause != FORCLAUSE)
2354 {
2355 llparseerror (cstring_makeLiteral
2356 ("Likely parse error. For clause is inconsistent."));
2357 return;
2358 }
2359
2360 context_setJustPopped ();
2361
2362 DPRINTF (("Exit for: %s / %s", exprNode_unparse (forPred), exprNode_unparse (body)));
2363
2364 /*
2365 ** Predicate must be false after for loop (unless there are breaks)
2366 */
2367
2368 if (context_getFlag (FLG_FORLOOPEXEC))
2369 {
2370 DPRINTF (("Here: for loop exec"));
2371 usymtab_popTrueExecBranch (forPred, body, FORCLAUSE);
2372 }
2373 else
2374 {
2375 if (context_getFlag (FLG_OBVIOUSLOOPEXEC)
2376 && exprNode_loopMustExec (forPred))
2377 {
2378 DPRINTF (("Here: loop must exec"));
2379 usymtab_popTrueExecBranch (forPred, body, FORCLAUSE);
2380 }
2381 else
2382 {
2383 DPRINTF (("Pop true branch:"));
2384 usymtab_popTrueBranch (forPred, body, FORCLAUSE);
2385 }
2386 }
2387
2388 usymtab_addGuards (invGuards);
2389 guardSet_free (invGuards);
2390 clauseStack_pop (gc.clauses);
2391 gc.inclause = topClause (gc.clauses);
2392 }
2393
2394 void context_exitConditionalClause (exprNode pred, exprNode tbranch, exprNode fbranch)
2395 {
2396 if (gc.inclause == CASECLAUSE)
2397 context_exitCaseClause (TRUE);
2398 if (!(gc.inclause == TRUECLAUSE || gc.inclause == FALSECLAUSE))
2399 {
2400 llparseerror (cstring_makeLiteral
2401 ("Likely parse error. Conditional clauses are inconsistent."));
2402 return;
2403 }
2404
2405 context_setJustPopped ();
2406 if (gc.inclause == FALSECLAUSE)
2407 {
2408 usymtab_popBranches (pred, tbranch, fbranch, FALSE, gc.inclause);
2409 }
2410 else
2411 {
2412 usymtab_popTrueBranch (pred, tbranch, gc.inclause);
2413 }
2414 llassert (clauseStack_top (gc.clauses) == gc.inclause);
2415 clauseStack_pop (gc.clauses);
2416 gc.inclause = topClause (gc.clauses);
2417 }
2418
2419 void
2420 context_returnFunction (void)
2421 {
2422 usymtab_checkFinalScope (TRUE);
2423 }
2424
2425 void
2426 context_exitFunction (void)
2427 {
2428 DPRINTF (("Exit function: %s", context_unparse ()));
2429
2430 if (!context_inFunction () && !context_inMacroConstant ()
2431 && !context_inUnknownMacro ()
2432 && !context_inIterDef () && !context_inIterEnd ())
2433 {
2434 /*
2435 ** not a bug because of parse errors
2436 */
2437
2438 BADBRANCH;
2439 }
2440 else
2441 {
2442 if (context_inMacro () && usymtab_inFunctionScope ())
2443 {
2444 usymtab_exitScope (exprNode_undefined);
2445 }
2446
2447 if (uentry_hasGlobs (gc.cont.fcn))
2448 {
2449 exprChecks_checkUsedGlobs (gc.globs, gc.globs_used);
2450 }
2451
2452
2453 if (uentry_hasMods (gc.cont.fcn))
2454 {
2455 if (context_getFlag (FLG_MUSTMOD))
2456 {
2457 exprNode_checkAllMods (gc.mods, gc.cont.fcn);
2458 }
2459 }
2460
2461 DPRINTF (("Exit function: %s", uentry_unparse (gc.cont.fcn)));
2462
2463 /*
2464 ** clear file static modifies
2465 */
2466
2467 /* do this first to get unused error messages */
2468
2469 usymtab_exitScope (exprNode_undefined);
2470 sRef_exitFunctionScope ();
2471
2472 gc.showfunction = FALSE;
2473 gc.kind = CX_GLOBAL;
2474 gc.cont.glob = TRUE;
2475 gc.acct = gc.facct;
2476 gc.globs = globSet_new ();
2477 globSet_clear (gc.globs_used);
2478 gc.mods = sRefSet_new ();
2479 }
2480
2481 llassert (clauseStack_isEmpty (gc.clauses));
2482 llassert (gc.inclause == NOCLAUSE);
2483 DPRINTF (("After exit function: %s", context_unparse ()));
2484 }
2485
2486 void
2487 context_quietExitFunction (void)
2488 {
2489 while (gc.kind == CX_INNER)
2490 {
2491 context_exitInnerPlain ();
2492 }
2493
2494 if (!context_inFunction () && !context_inMacroConstant () && !context_inUnknownMacro ()
2495 && !context_inIterDef () && !context_inIterEnd ())
2496 {
2497 }
2498 else
2499 {
2500 usymtab_quietExitScope (g_currentloc);
2501
2502 gc.showfunction = FALSE;
2503 gc.kind = CX_GLOBAL;
2504 gc.cont.glob = TRUE;
2505 gc.acct = gc.facct;
2506 gc.globs = globSet_new ();
2507 globSet_clear (gc.globs_used);
2508 gc.mods = sRefSet_new ();
2509
2510 sRef_exitFunctionScope ();
2511 }
2512 }
2513
2514 /*@observer@*/ uentryList
2515 context_getParams (void)
2516 {
2517 if (context_inFunctionLike ())
2518 {
2519 return (uentry_getParams (gc.cont.fcn));
2520 }
2521 else
2522 {
2523 llcontbug (message ("context_getParams: not in function: %q", context_unparse ()));
2524 return uentryList_undefined;
2525 }
2526 }
2527
2528 /*@observer@*/ globSet
2529 context_getUsedGlobs (void)
2530 {
2531 llassert (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
2532 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
2533
2534 return (gc.globs_used);
2535 }
2536
2537 cstring
2538 context_moduleName (void)
2539 {
2540 return (fileloc_getBase (g_currentloc));
2541 }
2542
2543 /*@observer@*/ globSet
2544 context_getGlobs (void)
2545 {
2546 llassert (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
2547 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
2548
2549 return (gc.globs);
2550 }
2551
2552 void
2553 context_addBoolAccess (void)
2554 {
2555 cstring bname = context_getString (FLG_BOOLTYPE);
2556 typeIdSet boolt = typeIdSet_single (usymtab_getTypeId (bname));
2557
2558 addModuleAccess (cstring_copy (bname), boolt);
2559
2560 /* for sys/types (perhaps, this is bogus!) */
2561 addModuleAccess (cstring_makeLiteral ("types"), boolt);
2562 }
2563
2564 # if 0
2565 bool
2566 context_canAccessBool (void)
2567 {
2568 return TRUE;
2569 }
2570 # endif
2571
2572 /*
2573 static typeId boolType = typeId_invalid;
2574
2575 if (typeId_isInvalid (boolType))
2576 {
2577 boolType = usymtab_getTypeId (context_getBoolName ());
2578 }
2579
2580 if (typeId_isInvalid (boolType)) {
2581 return FALSE;
2582 } else {
2583 return (typeIdSet_member (gc.acct, boolType));
2584 }
2585 }
2586 */
2587
2588 /* evs 2000-07-25: old version - replaced */
2589
2590 ctype
2591 context_boolImplementationType (void) {
2592 /* For now, this is bogus! */
2593 return ctype_int;
2594 }
2595
2596 bool
2597 context_canAccessBool (void)
2598 {
2599 static typeId boolType = typeId_invalid;
2600
2601 if (typeId_isInvalid (boolType))
2602 {
2603 boolType = usymtab_getTypeId (context_getBoolName ());
2604 }
2605
2606 if (!typeId_isInvalid (boolType))
2607 {
2608 return context_hasAccess (boolType);
2609 }
2610 else
2611 {
2612 ;
2613 }
2614
2615 return FALSE;
2616 }
2617
2618 void
2619 context_setMessageAnnote (/*@only@*/ cstring s)
2620 {
2621 llassert (cstring_isUndefined (gc.msgAnnote));
2622 gc.msgAnnote = s;
2623 }
2624
2625 bool
2626 context_hasMessageAnnote (void)
2627 {
2628 return (cstring_isDefined (gc.msgAnnote));
2629 }
2630
2631 void
2632 context_clearMessageAnnote (void)
2633 {
2634 if (cstring_isDefined (gc.msgAnnote))
2635 {
2636 cstring_free (gc.msgAnnote);
2637 gc.msgAnnote = cstring_undefined;
2638 }
2639 }
2640
2641 /*@only@*/ cstring
2642 context_getMessageAnnote (void)
2643 {
2644 cstring st = gc.msgAnnote;
2645
2646 gc.msgAnnote = cstring_undefined;
2647 return st;
2648 }
2649
2650 void
2651 context_setAliasAnnote (/*@observer@*/ sRef s, /*@observer@*/ sRef t)
2652 {
2653 llassert (sRef_isInvalid (gc.aliasAnnote));
2654 llassert (!sRef_sameName (s, t));
2655 gc.aliasAnnote = s;
2656 gc.aliasAnnoteAls = t;
2657 }
2658
2659 bool
2660 context_hasAliasAnnote (void)
2661 {
2662 return (sRef_isValid (gc.aliasAnnote));
2663 }
2664
2665 void
2666 context_clearAliasAnnote (void)
2667 {
2668 gc.aliasAnnote = sRef_undefined;
2669 }
2670
2671 cstring
2672 context_getAliasAnnote (void)
2673 {
2674 sRef ret = gc.aliasAnnote;
2675 sRef als = gc.aliasAnnoteAls;
2676
2677 llassert (sRef_isValid (ret) && sRef_isValid (als));
2678
2679 gc.aliasAnnote = sRef_undefined;
2680 return (message ("%q aliases %q", sRef_unparse (als), sRef_unparse (ret)));
2681 }
2682
2683 void
2684 context_recordFileModifies (sRefSet mods)
2685 {
2686 gc.modrecs = sRefSetList_add (gc.modrecs, mods);
2687 }
2688
2689 void
2690 context_recordFileGlobals (globSet mods)
2691 {
2692 DPRINTF (("Recording file globals: %s", globSet_unparse (mods)));
2693 /*@access globSet@*/ context_recordFileModifies (mods); /*@noaccess globSet@*/
2694 }
2695
2696 void
2697 context_setCommentMarkerChar (char c)
2698 {
2699 llassert (c != '\0');
2700
2701 context_setValue (FLG_COMMENTCHAR, (int) c);
2702 }
2703
2704 char
2705 context_getCommentMarkerChar (void)
2706 {
2707 return ((char) context_getValue (FLG_COMMENTCHAR));
2708 }
2709
2710 static void
2711 context_setValue (flagcode flag, int val)
2712 {
2713 int index = flagcode_valueIndex (flag);
2714
2715 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2716
2717 switch (flag)
2718 {
2719 case FLG_LINELEN:
2720 if (val <= 0)
2721 {
2722
2723 llerror_flagWarning (message ("Value for %s must be a positive "
2724 "number (given %d)",
2725 flagcode_unparse (flag), val));
2726 return;
2727 }
2728 if (flag == FLG_LINELEN && val < MINLINELEN)
2729 {
2730 llerror_flagWarning (message ("Value for %s must be at least %d (given %d)",
2731 flagcode_unparse (flag),
2732 MINLINELEN, val));
2733 val = MINLINELEN;
2734 }
2735 break;
2736
2737 case FLG_INCLUDENEST:
2738 case FLG_CONTROLNESTDEPTH:
2739 case FLG_STRINGLITERALLEN:
2740 case FLG_NUMSTRUCTFIELDS:
2741 case FLG_NUMENUMMEMBERS:
2742 case FLG_INDENTSPACES:
2743 if (val < 0)
2744 {
2745 llerror_flagWarning (message ("Value for %s must be a non-negative "
2746 "number (given %d)",
2747 flagcode_unparse (flag), val));
2748 return;
2749 }
2750
2751 break;
2752 default:
2753 break;
2754 }
2755
2756 DPRINTF (("Set value [%s] %d = %d", flagcode_unparse (flag), index, val));
2757 gc.values[index] = val;
2758 }
2759
2760 void
2761 context_setValueAndFlag (flagcode flag, int val)
2762 {
2763 gc.flags[flag] = TRUE;
2764 context_setValue (flag, val);
2765 }
2766
2767 int
2768 context_getValue (flagcode flag)
2769 {
2770 int index = flagcode_valueIndex (flag);
2771
2772 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2773 DPRINTF (("Get value [%s] %d = %d", flagcode_unparse (flag), index, gc.values[index]));
2774 return (gc.values[index]);
2775 }
2776
2777 # ifdef DEADCODE
2778 int
2779 context_getCounter (flagcode flag)
2780 {
2781 int index = flagcode_valueIndex (flag);
2782
2783 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2784 return (gc.counters[index]);
2785 }
2786
2787 void
2788 context_incCounter (flagcode flag)
2789 {
2790 int index = flagcode_valueIndex (flag);
2791
2792 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2793 /* check limit */
2794 gc.counters[index]++;
2795 }
2796
2797 void
2798 context_decCounter (flagcode flag)
2799 {
2800 int index = flagcode_valueIndex (flag);
2801
2802 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2803 gc.counters[index]--;
2804 }
2805 # endif /* DEADCODE */
2806
2807 bool context_showFunction (void)
2808 {
2809 return (gc.showfunction);
2810 }
2811
2812 void
2813 context_setString (flagcode flag, cstring val)
2814 {
2815 int index = flagcode_stringIndex (flag);
2816
2817 llassert (index >= 0 && index <= NUMSTRINGFLAGS);
2818
2819 DPRINTF (("set string: %s", flagcode_unparse (flag)));
2820
2821 switch (flag)
2822 {
2823 case FLG_MESSAGESTREAM:
2824 case FLG_WARNINGSTREAM:
2825 case FLG_ERRORSTREAM:
2826 {
2827 if (cstring_isDefined (val))
2828 {
2829 FILE *fstream;
2830
2831 if (osd_fileExists (val))
2832 {
2833 if (context_getFlag (FLG_STREAMOVERWRITE))
2834 {
2835 llfatalerror (message
2836 ("Output stream file %s would overwrite existing file. "
2837 "Use -streamoverwrite if you want to allow this.",
2838 val));
2839 }
2840 }
2841
2842 fstream = fopen (cstring_toCharsSafe (val), "w");
2843
2844 if (fstream == NULL)
2845 {
2846 llfatalerror (message ("Unable to open output stream file %s for writing",
2847 val));
2848 }
2849
2850 /*
2851 ** This ensures fstream will be closed on exit.
2852 */
2853
2854 fileTable_addStreamFile (gc.ftab, fstream, cstring_copy (val));
2855
2856 switch (flag)
2857 {
2858 case FLG_MESSAGESTREAM:
2859 g_messagestream = fstream;
2860 /*@innerbreak@*/ break;
2861 case FLG_WARNINGSTREAM:
2862 g_warningstream = fstream;
2863 /*@innerbreak@*/ break;
2864 case FLG_ERRORSTREAM:
2865 g_errorstream = fstream;
2866 /*@innerbreak@*/ break;
2867 BADDEFAULT;
2868 }
2869 /*@-statetransfer@*/
2870 } /*@=statetransfer@*/ /* fstream not closed, but will be on exit */
2871 break;
2872 }
2873 case FLG_SYSTEMDIRS:
2874 {
2875 llassert (cstring_isDefined (val));
2876
2877 if (cstring_firstChar (val) == '\"')
2878 {
2879 cstring oval = val;
2880 cstring tval = cstring_copy (cstring_suffix (val, 1));
2881
2882 if (cstring_lastChar (tval) != '\"')
2883 {
2884 int n = size_toInt (cstring_length (tval) - 1);
2885
2886 while (isspace ((int) cstring_getChar (tval, size_fromInt (n))))
2887 {
2888 n--;
2889 }
2890
2891 if (cstring_getChar (tval, size_fromInt (n)) != '\"')
2892 {
2893 llerror_flagWarning
2894 (message ("Setting -systemdirs to string with unmatching quotes: %s", val));
2895 }
2896 else
2897 {
2898 cstring otval = tval;
2899 tval = cstring_prefix (tval, size_fromInt (n));
2900 cstring_free (otval);
2901 }
2902 }
2903
2904 val = cstring_copy (cstring_clip (tval, cstring_length (tval) - 1));
2905 DPRINTF (("val = %s", val));
2906 cstring_free (tval);
2907 cstring_free (oval);
2908 }
2909
2910 break;
2911 }
2912 case FLG_TMPDIR:
2913 {
2914 llassert (cstring_isDefined (val));
2915
2916 if (cstring_length (val) == 0)
2917 {
2918 cstring_free (val);
2919 val = message (".%s", cstring_makeLiteralTemp (CONNECTSTR));
2920 }
2921 else if (cstring_lastChar (val) != CONNECTCHAR)
2922 {
2923 val = cstring_appendChar (val, CONNECTCHAR);
2924 }
2925 else
2926 {
2927 ;
2928 }
2929 break;
2930 }
2931 default:
2932 {
2933 ; /* Okay not handle everything in this switch */
2934 }
2935 /*@-branchstate@*/
2936 } /* evans 2002-03-24: splintme reports a spurious (I think) warning here...need to look into it */
2937 /*@=branchstate@*/
2938
2939 if (cstring_length (val) >= 1
2940 && cstring_firstChar (val) == '\"')
2941 {
2942 llerror_flagWarning (message
2943 ("Setting %s to string beginning with \". You probably "
2944 "don't meant to have the \"'s.",
2945 flagcode_unparse (flag)));
2946 }
2947
2948 gc.strings[index] = val;
2949 }
2950
2951 static /*@exposed@*/ cstring
2952 context_exposeString (flagcode flag)
2953 {
2954 int index = flagcode_stringIndex (flag);
2955
2956 llassert (index >= 0 && index <= NUMSTRINGFLAGS);
2957 return (gc.strings[index]);
2958 }
2959
2960 cstring
2961 context_getString (flagcode flag)
2962 {
2963 return (context_exposeString (flag));
2964 }
2965
2966 void
2967 context_resetErrors (void)
2968 {
2969 gc.numerrors = 0;
2970 }
2971
2972 void
2973 context_recordBug (void)
2974 {
2975 gc.numbugs++;
2976 }
2977
2978 int
2979 context_numBugs (void)
2980 {
2981 return gc.numbugs;
2982 }
2983
2984 void context_initMod (void)
2985 /*@globals undef gc; @*/
2986 {
2987 gc.kind = CX_GLOBAL;
2988
2989 gc.savekind = CX_ERROR;
2990 gc.savecont.glob = FALSE;
2991
2992 gc.instandardlib = FALSE;
2993 gc.numerrors = 0;
2994 gc.numbugs = 0;
2995 gc.neednl = FALSE;
2996 gc.linesprocessed = 0;
2997 gc.speclinesprocessed = 0;
2998 gc.insuppressregion = FALSE;
2999 gc.macroMissingParams = FALSE;
3000 gc.preprocessing = FALSE;
3001 gc.incommandline = FALSE;
3002 gc.mc = macrocache_create ();
3003 gc.nmods = 0;
3004 gc.maxmods = DEFAULTMAXMODS;
3005 gc.moduleaccess = (maccesst *) dmalloc (sizeof (*gc.moduleaccess) * (gc.maxmods));
3006
3007 gc.library = FLG_STDLIB;
3008
3009 gc.locstack = filelocStack_new ();
3010 gc.modrecs = sRefSetList_undefined;
3011 gc.anyExports = FALSE;
3012
3013 gc.ftab = fileTable_create ();
3014 gc.msgLog = messageLog_new ();
3015 gc.inimport = FALSE;
3016 gc.inDerivedFile = FALSE;
3017 gc.inheader = FALSE;
3018 gc.markers = flagMarkerList_new ();
3019 gc.cont.glob = TRUE;
3020 gc.showfunction = FALSE;
3021 gc.msgAnnote = cstring_undefined;
3022 gc.aliasAnnote = sRef_undefined;
3023 gc.aliasAnnoteAls = sRef_undefined;
3024 gc.boolType = ctype_bool;
3025 gc.mods = sRefSet_new ();
3026
3027 gc.saveloc = fileloc_undefined;
3028
3029 gc.inmacrocache = FALSE;
3030 gc.inclause = NOCLAUSE;
3031 gc.clauses = clauseStack_new ();
3032 gc.globs = globSet_new ();
3033 gc.nacct = typeIdSet_emptySet ();
3034 gc.acct = typeIdSet_emptySet ();
3035 gc.facct = typeIdSet_emptySet ();
3036 gc.savedFlags = FALSE;
3037 gc.pushloc = fileloc_undefined;
3038 gc.protectVars = FALSE;
3039 gc.justpopped = FALSE;
3040 gc.isNullGuarded = NO;
3041 gc.globs_used = globSet_undefined;
3042
3043 allFlagCodes (code)
3044 {
3045 gc.setGlobally[code] = FALSE;
3046 gc.setLocally[code] = FALSE;
3047 }
3048 end_allFlagCodes ;
3049
3050 usymtab_initMod ();
3051 context_resetAllFlags ();
3052
3053 assertSet (gc.flags); /* Can't use global in defines */
3054 assertSet (gc.saveflags);
3055 assertSet (gc.values);
3056 assertSet (gc.strings);
3057
3058 conext_resetAllCounters ();
3059 assertSet (gc.counters);
3060
3061 context_setMode (DEFAULT_MODE);
3062
3063 gc.stateTable = metaStateTable_create ();
3064 gc.annotTable = annotationTable_create ();
3065
3066 gc.inFunctionHeader = FALSE;
3067
3068 DPRINTF (("Annotations: \n%s",
3069 cstring_toCharsSafe (annotationTable_unparse (gc.annotTable))));
3070 DPRINTF (("State: \n%s",
3071 cstring_toCharsSafe (metaStateTable_unparse (gc.stateTable))));
3072
3073 }
3074
3075 ctype
3076 context_typeofZero (void)
3077 {
3078 ctype ct = ctype_int;
3079
3080 if (context_getFlag (FLG_ZEROPTR))
3081 {
3082 ct = ctype_makeConj (ct, ctype_voidPointer);
3083 }
3084
3085 if (context_getFlag (FLG_ZEROBOOL)) {
3086 ct = ctype_makeConj (ct, ctype_bool);
3087 }
3088
3089 return ct;
3090 }
3091
3092 ctype
3093 context_typeofOne (void)
3094 {
3095 ctype ct = ctype_int;
3096
3097 /* 1 is on longer a bool (was before 2.4)
3098 if (!context_getFlag (FLG_ABSTRACTBOOL))
3099 {
3100 ct = ctype_makeConj (ct, ctype_bool);
3101 }
3102 */
3103
3104 return (ct);
3105 }
3106
3107 /*@only@*/ cstring
3108 context_unparse (void)
3109 {
3110 cstring s;
3111
3112 switch (gc.kind)
3113 {
3114 case CX_LCL:
3115 s = message ("LCL File: %q", fileloc_unparse (g_currentloc));
3116 break;
3117 case CX_LCLLIB:
3118 s = message ("LCL Lib File: %q", fileloc_unparse (g_currentloc));
3119 break;
3120 case CX_GLOBAL:
3121 s = message ("Global Context:%q", fileloc_unparse (g_currentloc));
3122 break;
3123 case CX_INNER:
3124 s = message ("Inner Context [%d] : %q",
3125 gc.cont.cdepth,
3126 fileloc_unparse (g_currentloc));
3127 break;
3128 case CX_FUNCTION:
3129 s = message ("Function %q :%q \n\taccess %q\n\tmodifies %q",
3130 uentry_unparse (gc.cont.fcn),
3131 fileloc_unparse (g_currentloc),
3132 typeIdSet_unparse (gc.acct),
3133 sRefSet_unparse (gc.mods));
3134 break;
3135 case CX_MACROFCN:
3136 s = message ("Function Macro %q", uentry_unparse (gc.cont.fcn));
3137 break;
3138 case CX_UNKNOWNMACRO:
3139 s = message ("Forward Specified Macro %q", uentry_unparse (gc.cont.fcn));
3140 break;
3141 case CX_MACROCONST:
3142 s = message ("Constant Macro %q", uentry_unparse (gc.cont.fcn));
3143 break;
3144 case CX_ITERDEF:
3145 s = message ("Iter definition %q", uentry_unparse (gc.cont.fcn));
3146 break;
3147 case CX_ITEREND:
3148 s = message ("Iter end %q", uentry_unparse (gc.cont.fcn));
3149 break;
3150 case CX_FCNDECLARATION:
3151 s = message ("Function declaration %q", uentry_unparse (gc.cont.fcn));
3152 break;
3153 default:
3154 s = message ("Un-unparseable context: %d", (int) gc.kind);
3155 break;
3156 }
3157
3158 s = message ("%q\naccess: %q", s, context_unparseAccess ());
3159 return (s);
3160 }
3161
3162 extern ctype
3163 context_currentFunctionType (void)
3164 {
3165 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN)
3166 {
3167 return (uentry_getType (gc.cont.fcn));
3168 }
3169 else if (gc.kind == CX_INNER)
3170 {
3171 llcontbuglit ("context_currentFunctionType: inner context");
3172 do { context_exitInnerPlain (); } while (gc.kind == CX_INNER);
3173 return (context_currentFunctionType ());
3174 }
3175 else
3176 {
3177 llcontbuglit ("context_currentFunctionType: not in function");
3178 return (ctype_undefined);
3179 }
3180 }
3181
3182 void
3183 context_enterInnerContext (void)
3184 {
3185 if (context_getFlag (FLG_GRAMMAR))
3186 {
3187 lldiagmsg (message ("Enter inner context: %q", context_unparse ()));
3188 }
3189
3190 if (gc.kind == CX_GLOBAL)
3191 {
3192 gc.kind = CX_INNER;
3193 gc.cont.cdepth = 1;
3194 }
3195 else if (gc.kind == CX_INNER)
3196 {
3197 gc.cont.cdepth++;
3198 }
3199 else
3200 {
3201 ;
3202 }
3203
3204 usymtab_enterScope ();
3205 pushClause (NOCLAUSE);
3206 }
3207
3208 void
3209 context_exitInnerPlain (void) /*@modifies gc;@*/
3210 {
3211 context_exitInner (exprNode_undefined);
3212 }
3213
3214 void
3215 context_exitInner (exprNode exp)
3216 {
3217 if (context_getFlag (FLG_GRAMMAR))
3218 {
3219 lldiagmsg (message ("Exit inner context: %q", context_unparse ()));
3220 }
3221
3222 llassertprint (gc.inclause == NOCLAUSE || gc.inclause == CASECLAUSE,
3223 ("inclause = %s", clause_nameTaken (gc.inclause)));
3224
3225 clauseStack_removeFirst (gc.clauses, NOCLAUSE);
3226 gc.inclause = topClause (gc.clauses);
3227
3228 if (gc.kind == CX_INNER)
3229 {
3230 if (--gc.cont.cdepth == 0)
3231 {
3232 gc.kind = CX_GLOBAL;
3233 gc.cont.glob = TRUE;
3234 }
3235 }
3236 else
3237 {
3238 if (gc.kind == CX_GLOBAL)
3239 {
3240 llcontbuglit ("Attempt to exit global context");
3241 return;
3242 }
3243 }
3244
3245 usymtab_exitScope (exp);
3246 }
3247
3248
3249 void
3250 context_enterStructInnerContext (void)
3251 {
3252 if (context_getFlag (FLG_GRAMMAR))
3253 {
3254 lldiagmsg (message ("Enter struct inner context: %q", context_unparse ()));
3255 }
3256
3257 if (gc.kind == CX_GLOBAL)
3258 {
3259 gc.kind = CX_INNER;
3260 gc.cont.cdepth = 1;
3261 }
3262 else if (gc.kind == CX_INNER)
3263 {
3264 gc.cont.cdepth++;
3265 }
3266 else
3267 {
3268 ;
3269 }
3270
3271 usymtab_enterScope ();
3272
3273 if (context_getFlag (FLG_GRAMMAR))
3274 {
3275 lldiagmsg (message ("Enter struct inner context: %q", context_unparse ()));
3276 }
3277 }
3278
3279 void
3280 context_exitStructInnerContext (void)
3281 {
3282 if (context_getFlag (FLG_GRAMMAR))
3283 {
3284 lldiagmsg (message ("Exit struct inner context: %q [%d]", context_unparse (), gc.cont.cdepth));
3285 }
3286
3287 if (gc.kind == CX_INNER)
3288 {
3289 if (gc.cont.cdepth <= 0)
3290 {
3291 llcontbuglit ("Attempt to exit inner context with no depth");
3292 gc.kind = CX_GLOBAL;
3293 gc.cont.glob = TRUE;
3294 gc.cont.cdepth = 0;
3295 }
3296 else {
3297 gc.cont.cdepth--;
3298
3299 if (gc.cont.cdepth == 0)
3300 {
3301 gc.kind = CX_GLOBAL;
3302 gc.cont.glob = TRUE;
3303 }
3304 }
3305 }
3306 else
3307 {
3308 if (gc.kind == CX_GLOBAL)
3309 {
3310 llcontbuglit ("Attempt to exit global context");
3311 return;
3312 }
3313 }
3314
3315 usymtab_exitScope (exprNode_undefined);
3316
3317 if (context_getFlag (FLG_GRAMMAR))
3318 {
3319 lldiagmsg (message ("After exit struct inner context: %q [%d]", context_unparse (), gc.cont.cdepth));
3320 }
3321 }
3322
3323 void
3324 context_exitInnerSafe (void)
3325 {
3326 if (context_getFlag (FLG_GRAMMAR))
3327 {
3328 lldiagmsg (message ("Exit inner safe: %q", context_unparse ()));
3329 }
3330
3331 if (gc.kind == CX_INNER)
3332 {
3333 if (--gc.cont.cdepth <= 0)
3334 {
3335 gc.cont.cdepth = 0;
3336 }
3337 }
3338 else if (gc.kind == CX_GLOBAL)
3339 {
3340 llcontbuglit ("Attempt to exit global context");
3341 return;
3342 }
3343 else
3344 {
3345 if (usymtab_inDeepScope ())
3346 {
3347 usymtab_exitScope (exprNode_undefined);
3348 }
3349 }
3350 }
3351
3352 static
3353 void setModuleAccess (void)
3354 {
3355 gc.facct = typeIdSet_emptySet ();
3356
3357 if (fileId_isValid (currentFile ()))
3358 {
3359 cstring baseName = fileloc_getBase (g_currentloc);
3360
3361 if (context_getFlag (FLG_ACCESSFILE))
3362 {
3363 if (usymtab_existsType (baseName))
3364 {
3365 gc.facct = typeIdSet_insert (gc.facct,
3366 usymtab_getTypeId (baseName));
3367 }
3368 else
3369 {
3370 ;
3371 }
3372 }
3373
3374 if (context_getFlag (FLG_ACCESSMODULE))
3375 {
3376 int i;
3377
3378 for (i = 0; i < gc.nmods; i++)
3379 {
3380 if (cstring_equal (baseName, gc.moduleaccess[i].file))
3381 {
3382 gc.facct = typeIdSet_union (gc.facct, gc.moduleaccess[i].daccess);
3383
3384 break;
3385 }
3386 }
3387 }
3388
3389 gc.acct = gc.facct;
3390 gc.inheader = fileId_isHeader (currentFile ());
3391 }
3392 else
3393 {
3394 llcontbuglit ("Current file not defined\n");
3395 gc.facct = typeIdSet_emptySet ();
3396 gc.acct = gc.facct;
3397 gc.inheader = FALSE;
3398 }
3399
3400 /* 17 Jan 1995: forgot to clear nacct */
3401
3402 gc.nacct = typeIdSet_emptySet ();
3403 }
3404
3405 static void
3406 context_enterFileAux (void)
3407 {
3408 setModuleAccess ();
3409 }
3410
3411 void
3412 context_enterFile (void)
3413 {
3414 context_enterFileAux ();
3415 usymtab_enterFile ();
3416 }
3417
3418 void
3419 context_enterMacroFile (void)
3420 {
3421 context_enterFileAux ();
3422 }
3423
3424 bool
3425 context_inFunction (void)
3426 {
3427 kcontext ck = gc.kind;
3428
3429 return ((ck == CX_FUNCTION) || (ck == CX_MACROFCN) || (ck == CX_INNER));
3430 }
3431
3432 bool
3433 context_inFunctionLike (void)
3434 {
3435 return (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
3436 || gc.kind == CX_FCNDECLARATION
3437 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
3438 }
3439
3440 bool
3441 context_inRealFunction (void)
3442 {
3443 kcontext ck = gc.kind;
3444
3445 return ((ck == CX_FUNCTION) || (ck == CX_MACROFCN));
3446 }
3447
3448 void
3449 context_processAllMacros (void)
3450 {
3451 usymtab_enterFile ();
3452
3453 gc.inmacrocache = TRUE;
3454 macrocache_processUndefinedElements (gc.mc);
3455 cleanupMessages ();
3456 usymtab_exitFile ();
3457
3458 gc.inmacrocache = FALSE;
3459 macrocache_finalize ();
3460 }
3461
3462 /*
3463 ** this happens once at the end of each C file
3464 **
3465 ** check each Macro that was defined in current file.c or current file.h
3466 **
3467 */
3468
3469 static void
3470 context_processMacros (void)
3471 {
3472 if (fileId_isValid (currentFile ()))
3473 {
3474 fileloc lastfl;
3475 cstring cbase = fileLib_removePathFree (fileLib_removeAnyExtension (fileTable_fileName (currentFile ())));
3476
3477 gc.inmacrocache = TRUE;
3478
3479 DPRINTF (("Processing macros: %s", cbase));
3480 lastfl = macrocache_processFileElements (gc.mc, cbase);
3481 DPRINTF (("Processing macros: %s", fileloc_unparse (lastfl)));
3482
3483 cstring_free (cbase);
3484
3485 if (fileloc_isDefined (lastfl))
3486 {
3487 g_currentloc = fileloc_update (g_currentloc, lastfl);
3488 cleanupMessages ();
3489 }
3490
3491 gc.inmacrocache = FALSE;
3492 }
3493 }
3494
3495 bool
3496 context_processingMacros (void)
3497 {
3498 return (gc.inmacrocache);
3499 }
3500
3501 void
3502 context_exitCFile (void)
3503 {
3504 if (gc.kind != CX_GLOBAL)
3505 {
3506 llfatalerrorLoc
3507 (cstring_makeLiteral ("File ended outside global scope"));
3508 }
3509
3510 if (gc.insuppressregion)
3511 {
3512 /* gack...don't reverse the order of these lines! ;-> */
3513 gc.insuppressregion = FALSE;
3514 llerrorlit (FLG_SYNTAX,
3515 "File ended in ignore errors region, "
3516 "possible missing /*@end*/");
3517 }
3518
3519 /* fix up parse errors */
3520
3521 while (!usymtab_inFileScope ())
3522 {
3523 usymtab_quietExitScope (g_currentloc);
3524 }
3525
3526 /*
3527 ** Clear the file-specific modifies information.
3528 */
3529
3530 sRefSetList_elements (gc.modrecs, mods)
3531 {
3532 sRefSet_clearStatics (mods);
3533 } end_sRefSetList_elements ;
3534
3535 sRefSetList_clear (gc.modrecs);
3536
3537 context_processMacros ();
3538 cleanupMessages ();
3539
3540 usymtab_exitFile ();
3541
3542 gc.inDerivedFile = FALSE;
3543 filelocStack_clear (gc.locstack);
3544
3545 gc.nacct = typeIdSet_emptySet (); /* empty noaccess */
3546
3547 gc.cont.glob = TRUE;
3548
3549 if (gc.savedFlags)
3550 {
3551 context_restoreFlagSettings ();
3552 gc.savedFlags = FALSE;
3553 }
3554
3555 /*
3556 DPRINTF (("After exiting file: "));
3557 usymtab_printAll ();
3558 */
3559 }
3560
3561 void
3562 context_exitMacroCache (void)
3563 {
3564 if (gc.kind != CX_GLOBAL)
3565 {
3566 if (context_inMacro ())
3567 /* this is okay, file could end without newline in macro */
3568 {
3569 DPRINTF (("Still in macro: %s",
3570 context_unparse ()));
3571 context_exitFunction ();
3572 }
3573 else
3574 {
3575 llcontbug (message ("context_exitMacroCache: outside global scope: %q",
3576 context_unparse ()));
3577 gc.kind = CX_GLOBAL;
3578 }
3579 }
3580
3581 /*
3582 ** no longer valid here
3583 ** if (gc.insuppressregion)
3584 ** {
3585 ** gc.insuppressregion = FALSE;
3586 ** llerror ("File ended in ignore errors region, possible missing @");
3587 ** }
3588 */
3589
3590 gc.cont.glob = TRUE;
3591 }
3592
3593 void
3594 context_saveLocation (void)
3595 {
3596 /* was llassert (fileloc_isUndefined (gc.saveloc)) */
3597 fileloc_free (gc.saveloc);
3598 gc.saveloc = fileloc_copy (g_currentloc);
3599 }
3600
3601 fileloc
3602 context_getSaveLocation (void)
3603 {
3604 fileloc fl = gc.saveloc;
3605 gc.saveloc = fileloc_undefined;
3606 return fl;
3607 }
3608
3609 /*@observer@*/ cstring
3610 context_inFunctionName (void)
3611 {
3612 if (gc.kind == CX_FUNCTION
3613 || gc.kind == CX_MACROFCN || gc.kind == CX_UNKNOWNMACRO
3614 || gc.kind == CX_MACROCONST
3615 || gc.kind == CX_ITERDEF || gc.kind == CX_ITEREND)
3616 {
3617 return (uentry_rawName (gc.cont.fcn));
3618 }
3619 else
3620 {
3621 llcontbuglit ("context_inFunctionName: not in function");
3622 return (cstring_undefined);
3623 }
3624 }
3625
3626 void
3627 context_userSetFlag (flagcode f, bool b)
3628 {
3629 DPRINTF (("set flag: %s / %s",
3630 flagcode_unparse (f),
3631 bool_unparse (context_getFlag (f))));
3632
3633 if (f == FLG_NEVERINCLUDE && b)
3634 {
3635 if (gc.flags[FLG_EXPORTHEADER])
3636 {
3637 llerror_flagWarning
3638 (cstring_makeLiteral
3639 ("Setting +neverinclude after +exportheader. "
3640 "Turning off exportheader, since headers are not checked "
3641 "when +neverinclude is used."));
3642
3643 gc.flags[FLG_EXPORTHEADER] = FALSE;
3644 }
3645 }
3646 else
3647 {
3648 if (f == FLG_EXPORTHEADER && b)
3649 {
3650 if (gc.flags[FLG_NEVERINCLUDE])
3651 {
3652 llerror_flagWarning
3653 (cstring_makeLiteral
3654 ("Setting +exportheader after +neverinclude. "
3655 "Not setting exportheader, since headers are not checked "
3656 "when +neverinclude is used."));
3657 gc.flags[FLG_EXPORTHEADER] = FALSE;
3658 return;
3659 }
3660 }
3661 }
3662
3663 if (context_getFlag (FLG_WARNFLAGS) && f != FLG_NOF && f != FLG_OPTF)
3664 {
3665 bool lastsetting = context_getFlag (f);
3666
3667 if (bool_equal (lastsetting, b)
3668 && !flagcode_isSpecialFlag (f)
3669 && !flagcode_isIdemFlag (f)
3670 && !flagcode_hasArgument (f))
3671 {
3672 llerror_flagWarning
3673 (message ("Setting %s%s redundant with current value",
3674 cstring_makeLiteralTemp (b ? "+" : "-"),
3675 flagcode_unparse (f)));
3676 }
3677 }
3678
3679 if (flagcode_isWarnUseFlag (f) && b)
3680 {
3681 if (!context_getFlag (FLG_WARNUSE))
3682 {
3683 llerror_flagWarning
3684 (message ("Flag +%s is canceled by -warnuse",
3685 flagcode_unparse (f)));
3686 }
3687 }
3688
3689
3690 if (flagcode_isLibraryFlag (f))
3691 {
3692 static bool libSet = FALSE;
3693 if (!libSet)
3694 {
3695 libSet = TRUE;
3696 }
3697 else
3698 {
3699 llerror_flagWarning
3700 (message ("Selecting library %s after library %s was "
3701 "selected (only one library may be used)",
3702 flagcode_unparse (f),
3703 flagcode_unparse (gc.library)));
3704 }
3705
3706 if (f == FLG_UNIXLIB)
3707 {
3708 if (context_getFlag (FLG_WARNUNIXLIB))
3709 {
3710 llerror_flagWarning
3711 (cstring_makeLiteral
3712 ("Selecting unix library. Unix library is "
3713 "based on the Single Unix Specification, Version 2. Not all "
3714 "Unix implementations are consistent with this specification. "
3715 "Use -warnunixlib to suppress this message."));
3716 }
3717 }
3718
3719 context_setLibrary (f);
3720 }
3721
3722 if (flagcode_isNameChecksFlag (f) && b && !context_maybeSet (FLG_NAMECHECKS))
3723 {
3724 llerror_flagWarning
3725 (message
3726 ("Setting +%s will not produce warnings with -namechecks. "
3727 "Must set +namechecks also.",
3728 flagcode_unparse (f)));
3729 }
3730
3731 gc.setGlobally[f] = TRUE;
3732 context_setFlag (f, b, g_currentloc);
3733 }
3734
3735 void
3736 context_fileSetFlag (flagcode f, ynm set, fileloc loc)
3737 {
3738 if (!gc.savedFlags)
3739 {
3740 context_saveFlagSettings ();
3741 }
3742
3743 if (ynm_isOff (set))
3744 {
3745 context_setFlagAux (f, FALSE, TRUE, FALSE, loc);
3746 }
3747 else if (ynm_isOn (set))
3748 {
3749 context_setFlagAux (f, TRUE, TRUE, FALSE, loc);
3750 gc.setLocally[f] = TRUE;
3751 }
3752 else
3753 {
3754 context_restoreFlag (f, loc);
3755 }
3756 }
3757
3758 static void
3759 context_restoreFlag (flagcode f, fileloc loc)
3760 {
3761 if (!gc.savedFlags)
3762 {
3763 voptgenerror
3764 (FLG_SYNTAX,
3765 message ("Attempt to restore flag %s when no file scope flags "
3766 "have been set.",
3767 flagcode_unparse (f)),
3768 loc);
3769 }
3770 else
3771 {
3772 context_addFlagMarker (f, MAYBE, loc);
3773 context_setFlagAux (f, gc.saveflags[f], FALSE, TRUE, loc);
3774 }
3775
3776 }
3777
3778 static void
3779 context_setFlag (flagcode f, bool b, fileloc loc)
3780 {
3781 context_setFlagAux (f, b, FALSE, FALSE, loc);
3782 }
3783
3784 void
3785 context_setFlagTemp (flagcode f, bool b)
3786 {
3787 DPRINTF (("Set flag temp: %s / %s", flagcode_unparse (f), bool_unparse (b)));
3788 gc.flags[f] = b;
3789 }
3790
3791 /*@notfunction@*/
3792 # define DOSET(ff,b) \
3793 do { if (inFile) { gc.setLocally[ff] = TRUE; \
3794 context_addFlagMarker (ff, ynm_fromBool (b), loc); } \
3795 DPRINTF (("set flag: %s / %s", flagcode_unparse (ff), bool_unparse (b))); \
3796 gc.flags[ff] = b; } while (FALSE)
3797
3798 static void
3799 context_setFlagAux (flagcode f, bool b, bool inFile,
3800 /*@unused@*/ bool isRestore, fileloc loc)
3801 {
3802 DPRINTF (("Set flag: %s / %s", flagcode_unparse (f), bool_unparse (b)));
3803
3804 /*
3805 ** Removed test for special flags.
3806 */
3807
3808 if (flagcode_isIdemFlag (f))
3809 {
3810 DOSET (f, TRUE);
3811 }
3812 else
3813 {
3814 DOSET (f, b);
3815 }
3816
3817 if (f >= FLG_ITS4MOSTRISKY && f <= FLG_ITS4LOWRISK)
3818 {
3819 if (b) /* Turing higher level on, turns on all lower levels */
3820 {
3821 switch (f)
3822 {
3823 case FLG_ITS4MOSTRISKY:
3824 DOSET (FLG_ITS4VERYRISKY, b);
3825 /*@fallthrough@*/
3826 case FLG_ITS4VERYRISKY:
3827 DOSET (FLG_ITS4RISKY, b);
3828 /*@fallthrough@*/
3829 case FLG_ITS4RISKY:
3830 DOSET (FLG_ITS4MODERATERISK, b);
3831 /*@fallthrough@*/
3832 case FLG_ITS4MODERATERISK:
3833 DOSET (FLG_ITS4LOWRISK, b);
3834 /*@fallthrough@*/
3835 case FLG_ITS4LOWRISK:
3836 break;
3837 BADDEFAULT;
3838 }
3839 }
3840 else /* Turning level off, turns off all higher levels */
3841 {
3842 switch (f)
3843 {
3844 case FLG_ITS4LOWRISK:
3845 DOSET (FLG_ITS4MODERATERISK, b);
3846 /*@fallthrough@*/
3847 case FLG_ITS4MODERATERISK:
3848 DOSET (FLG_ITS4RISKY, b);
3849 /*@fallthrough@*/
3850 case FLG_ITS4RISKY:
3851 DOSET (FLG_ITS4VERYRISKY, b);
3852 /*@fallthrough@*/
3853 case FLG_ITS4VERYRISKY:
3854 DOSET (FLG_ITS4MOSTRISKY, b);
3855 /*@fallthrough@*/
3856 case FLG_ITS4MOSTRISKY:
3857 break;
3858 BADDEFAULT;
3859 }
3860 }
3861 }
3862
3863 switch (f)
3864 {
3865 case FLG_MESSAGESTREAMSTDOUT:
3866 g_messagestream = stdout;
3867 break;
3868 case FLG_MESSAGESTREAMSTDERR:
3869 g_messagestream = stderr;
3870 break;
3871 case FLG_WARNINGSTREAMSTDOUT:
3872 g_warningstream = stdout;
3873 break;
3874 case FLG_WARNINGSTREAMSTDERR:
3875 g_warningstream = stderr;
3876 break;
3877 case FLG_ERRORSTREAMSTDOUT:
3878 g_errorstream = stdout;
3879 break;
3880 case FLG_ERRORSTREAMSTDERR:
3881 g_errorstream = stderr;
3882 break;
3883 case FLG_ALLEMPTY:
3884 DOSET (FLG_ALLEMPTY, b);
3885 DOSET (FLG_IFEMPTY, b);
3886 DOSET (FLG_WHILEEMPTY, b);
3887 DOSET (FLG_FOREMPTY, b);
3888 break;
3889 case FLG_PREDBOOL:
3890 DOSET (FLG_PREDBOOL, b);
3891 DOSET (FLG_PREDBOOLINT, b);
3892 DOSET (FLG_PREDBOOLPTR, b);
3893 DOSET (FLG_PREDBOOLOTHERS, b);
3894 break;
3895 case FLG_GLOBALIAS:
3896 DOSET (FLG_CHECKSTRICTGLOBALIAS, b);
3897 DOSET (FLG_CHECKEDGLOBALIAS, b);
3898 DOSET (FLG_CHECKMODGLOBALIAS, b);
3899 DOSET (FLG_UNCHECKEDGLOBALIAS, b);
3900 break;
3901 case FLG_ALLBLOCK:
3902 DOSET (FLG_ALLBLOCK, b);
3903 DOSET (FLG_IFBLOCK, b);
3904 DOSET (FLG_WHILEBLOCK, b);
3905 DOSET (FLG_FORBLOCK, b);
3906 break;
3907 case FLG_GRAMMAR:
3908 if (b)
3909 {
3910 c_debug = 1;
3911 mtdebug = 1;
3912 }
3913 else
3914 {
3915 c_debug = 0;
3916 mtdebug = 0;
3917 }
3918
3919 DOSET (FLG_GRAMMAR, b);
3920 break;
3921 case FLG_CODEIMPONLY:
3922 DOSET (FLG_CODEIMPONLY, b);
3923 DOSET (FLG_GLOBIMPONLY, b);
3924 DOSET (FLG_RETIMPONLY, b);
3925 DOSET (FLG_STRUCTIMPONLY, b);
3926 break;
3927 case FLG_SPECALLIMPONLY:
3928 DOSET (FLG_SPECALLIMPONLY, b);
3929 DOSET (FLG_SPECGLOBIMPONLY, b);
3930 DOSET (FLG_SPECRETIMPONLY, b);
3931 DOSET (FLG_SPECSTRUCTIMPONLY, b);
3932 break;
3933 case FLG_ALLIMPONLY:
3934 DOSET (FLG_ALLIMPONLY, b);
3935 DOSET (FLG_GLOBIMPONLY, b);
3936 DOSET (FLG_RETIMPONLY, b);
3937 DOSET (FLG_STRUCTIMPONLY, b);
3938 DOSET (FLG_SPECGLOBIMPONLY, b);
3939 DOSET (FLG_SPECRETIMPONLY, b);
3940 DOSET (FLG_SPECSTRUCTIMPONLY, b);
3941 break;
3942 case FLG_ANSI89LIMITS:
3943 DOSET (FLG_ANSI89LIMITS, b);
3944 DOSET (FLG_CONTROLNESTDEPTH, b);
3945 DOSET (FLG_STRINGLITERALLEN, b);
3946 DOSET (FLG_INCLUDENEST, b);
3947 DOSET (FLG_NUMSTRUCTFIELDS, b);
3948 DOSET (FLG_NUMENUMMEMBERS, b);
3949
3950 if (b)
3951 {
3952 context_setValue (FLG_CONTROLNESTDEPTH, ANSI89_CONTROLNESTDEPTH);
3953 context_setValue (FLG_STRINGLITERALLEN, ANSI89_STRINGLITERALLEN);
3954 context_setValue (FLG_INCLUDENEST, ANSI89_INCLUDENEST);
3955 context_setValue (FLG_NUMSTRUCTFIELDS, ANSI89_NUMSTRUCTFIELDS);
3956 context_setValue (FLG_NUMENUMMEMBERS, ANSI89_NUMENUMMEMBERS);
3957 context_setValue (FLG_EXTERNALNAMELEN, ANSI89_EXTERNALNAMELEN);
3958 context_setValue (FLG_INTERNALNAMELEN, ANSI89_INTERNALNAMELEN);
3959 }
3960 break;
3961 case FLG_ISO99LIMITS:
3962 DOSET (FLG_ISO99LIMITS, b);
3963 DOSET (FLG_CONTROLNESTDEPTH, b);
3964 DOSET (FLG_STRINGLITERALLEN, b);
3965 DOSET (FLG_INCLUDENEST, b);
3966 DOSET (FLG_NUMSTRUCTFIELDS, b);
3967 DOSET (FLG_NUMENUMMEMBERS, b);
3968
3969 if (b)
3970 {
3971 context_setValue (FLG_CONTROLNESTDEPTH, ISO99_CONTROLNESTDEPTH);
3972 context_setValue (FLG_STRINGLITERALLEN, ISO99_STRINGLITERALLEN);
3973 context_setValue (FLG_INCLUDENEST, ISO99_INCLUDENEST);
3974 context_setValue (FLG_NUMSTRUCTFIELDS, ISO99_NUMSTRUCTFIELDS);
3975 context_setValue (FLG_NUMENUMMEMBERS, ISO99_NUMENUMMEMBERS);
3976 context_setValue (FLG_EXTERNALNAMELEN, ISO99_EXTERNALNAMELEN);
3977 context_setValue (FLG_INTERNALNAMELEN, ISO99_INTERNALNAMELEN);
3978 }
3979 break;
3980 case FLG_EXTERNALNAMELEN:
3981 DOSET (FLG_DISTINCTEXTERNALNAMES, TRUE);
3982 DOSET (FLG_EXTERNALNAMELEN, TRUE);
3983 break;
3984 case FLG_INTERNALNAMELEN:
3985 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
3986 DOSET (FLG_INTERNALNAMELEN, TRUE);
3987 break;
3988 case FLG_EXTERNALNAMECASEINSENSITIVE:
3989 DOSET (FLG_EXTERNALNAMECASEINSENSITIVE, b);
3990
3991 if (b && !gc.flags[FLG_DISTINCTEXTERNALNAMES])
3992 {
3993 DOSET (FLG_DISTINCTEXTERNALNAMES, TRUE);
3994 context_setValue (FLG_EXTERNALNAMELEN, 0);
3995 }
3996 break;
3997 case FLG_INTERNALNAMECASEINSENSITIVE:
3998 DOSET (FLG_INTERNALNAMECASEINSENSITIVE, b);
3999
4000 if (b && !gc.flags[FLG_DISTINCTINTERNALNAMES])
4001 {
4002 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
4003 context_setValue (FLG_INTERNALNAMELEN, 0);
4004 }
4005 break;
4006 case FLG_INTERNALNAMELOOKALIKE:
4007 DOSET (FLG_INTERNALNAMELOOKALIKE, b);
4008
4009 if (b && !gc.flags[FLG_DISTINCTINTERNALNAMES])
4010 {
4011 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
4012 context_setValue (FLG_INTERNALNAMELEN, 0);
4013 }
4014 break;
4015 case FLG_MODUNSPEC:
4016 DOSET (FLG_MODNOMODS, b);
4017 DOSET (FLG_MODGLOBSUNSPEC, b);
4018 DOSET (FLG_MODSTRICTGLOBSUNSPEC, b);
4019 break;
4020 case FLG_EXPORTANY:
4021 DOSET (FLG_EXPORTVAR, b);
4022 DOSET (FLG_EXPORTFCN, b);
4023 DOSET (FLG_EXPORTTYPE, b);
4024 DOSET (FLG_EXPORTMACRO, b);
4025 DOSET (FLG_EXPORTCONST, b);
4026 gc.anyExports = TRUE;
4027 break;
4028 case FLG_REPEXPOSE:
4029 DOSET (FLG_RETEXPOSE, b);
4030 DOSET (FLG_ASSIGNEXPOSE, b);
4031 DOSET (FLG_CASTEXPOSE, b);
4032 break;
4033 case FLG_RETVAL:
4034 DOSET (FLG_RETVALBOOL, b);
4035 DOSET (FLG_RETVALINT, b);
4036 DOSET (FLG_RETVALOTHER, b);
4037 break;
4038 case FLG_PARTIAL:
4039 if (b)
4040 {
4041 DOSET (FLG_EXPORTLOCAL, FALSE);
4042 DOSET (FLG_DECLUNDEF, FALSE);
4043 DOSET (FLG_SPECUNDEF, FALSE);
4044 DOSET (FLG_TOPUNUSED, FALSE);
4045 }
4046 break;
4047 case FLG_DEEPBREAK:
4048 DOSET (FLG_LOOPLOOPBREAK, b);
4049 DOSET (FLG_LOOPSWITCHBREAK, b);
4050 DOSET (FLG_SWITCHLOOPBREAK, b);
4051 DOSET (FLG_SWITCHSWITCHBREAK, b);
4052 DOSET (FLG_LOOPLOOPCONTINUE, b);
4053 DOSET (FLG_DEEPBREAK, b);
4054 break;
4055 case FLG_LOOPEXEC:
4056 DOSET (FLG_FORLOOPEXEC, b);
4057 DOSET (FLG_WHILELOOPEXEC, b);
4058 DOSET (FLG_ITERLOOPEXEC, b);
4059 break;
4060 case FLG_ACCESSALL:
4061 DOSET (FLG_ACCESSMODULE, b);
4062 DOSET (FLG_ACCESSFILE, b);
4063 DOSET (FLG_ACCESSCZECH, b);
4064 break;
4065 case FLG_ALLMACROS:
4066 DOSET (FLG_ALLMACROS, b);
4067 DOSET (FLG_FCNMACROS, b);
4068 DOSET (FLG_CONSTMACROS, b);
4069 break;
4070 case FLG_BOUNDS:
4071 DOSET (FLG_BOUNDSREAD, b);
4072 DOSET (FLG_BOUNDSWRITE, b);
4073 DOSET (FLG_LIKELYBOUNDSREAD, b);
4074 DOSET (FLG_LIKELYBOUNDSWRITE, b);
4075 break;
4076 case FLG_BOUNDSREAD:
4077 DOSET (FLG_LIKELYBOUNDSREAD, b);
4078 break;
4079 case FLG_BOUNDSWRITE:
4080 DOSET (FLG_LIKELYBOUNDSWRITE, b);
4081 break;
4082 case FLG_LIKELYBOUNDS:
4083 DOSET (FLG_LIKELYBOUNDSREAD, b);
4084 DOSET (FLG_LIKELYBOUNDSWRITE, b);
4085 break;
4086
4087 case FLG_CZECH:
4088 if (b) { DOSET (FLG_ACCESSCZECH, b); }
4089 DOSET (FLG_CZECHFUNCTIONS, b);
4090 DOSET (FLG_CZECHVARS, b);
4091 DOSET (FLG_CZECHCONSTANTS, b);
4092 DOSET (FLG_CZECHTYPES, b);
4093 break;
4094 case FLG_SLOVAK:
4095 if (b) { DOSET (FLG_ACCESSSLOVAK, b); }
4096 DOSET (FLG_SLOVAKFUNCTIONS, b);
4097 DOSET (FLG_SLOVAKVARS, b);
4098 DOSET (FLG_SLOVAKCONSTANTS, b);
4099 DOSET (FLG_SLOVAKTYPES, b);
4100 break;
4101 case FLG_CZECHOSLOVAK:
4102 if (b) { DOSET (FLG_ACCESSCZECHOSLOVAK, b); }
4103 DOSET (FLG_CZECHOSLOVAKFUNCTIONS, b);
4104 DOSET (FLG_CZECHOSLOVAKVARS, b);
4105 DOSET (FLG_CZECHOSLOVAKCONSTANTS, b);
4106 DOSET (FLG_CZECHOSLOVAKTYPES, b);
4107 break;
4108 case FLG_NULL:
4109 DOSET (FLG_NULLSTATE, b);
4110 DOSET (FLG_NULLDEREF, b);
4111 DOSET (FLG_NULLASSIGN, b);
4112 DOSET (FLG_NULLPASS, b);
4113 DOSET (FLG_NULLRET, b);
4114 break;
4115 case FLG_MUSTFREE:
4116 DOSET (FLG_MUSTFREEONLY, b);
4117 DOSET (FLG_MUSTFREEFRESH, b);
4118 break;
4119 case FLG_MEMCHECKS:
4120 DOSET (FLG_NULLSTATE, b);
4121 DOSET (FLG_NULLDEREF, b);
4122 DOSET (FLG_NULLASSIGN, b);
4123 DOSET (FLG_NULLPASS, b);
4124 DOSET (FLG_NULLRET, b);
4125 DOSET (FLG_COMPDEF, b);
4126 DOSET (FLG_COMPMEMPASS, b);
4127 DOSET (FLG_UNIONDEF, b);
4128 DOSET (FLG_MEMTRANS, b);
4129 DOSET (FLG_USERELEASED, b);
4130 DOSET (FLG_ALIASUNIQUE, b);
4131 DOSET (FLG_MAYALIASUNIQUE, b);
4132 DOSET (FLG_MUSTFREEONLY, b);
4133 DOSET (FLG_MUSTFREEFRESH, b);
4134 DOSET (FLG_MUSTDEFINE, b);
4135 DOSET (FLG_GLOBSTATE, b);
4136 DOSET (FLG_COMPDESTROY, b);
4137 DOSET (FLG_MUSTNOTALIAS, b);
4138 DOSET (FLG_MEMIMPLICIT, b);
4139 DOSET (FLG_BRANCHSTATE, b);
4140 /*@fallthrough@*/ /* also sets memtrans flags */
4141 case FLG_MEMTRANS:
4142 DOSET (FLG_MEMTRANS, b);
4143 DOSET (FLG_EXPOSETRANS, b);
4144 DOSET (FLG_OBSERVERTRANS, b);
4145 DOSET (FLG_DEPENDENTTRANS, b);
4146 DOSET (FLG_NEWREFTRANS, b);
4147 DOSET (FLG_ONLYTRANS, b);
4148 DOSET (FLG_OWNEDTRANS, b);
4149 DOSET (FLG_FRESHTRANS, b);
4150 DOSET (FLG_SHAREDTRANS, b);
4151 DOSET (FLG_TEMPTRANS, b);
4152 DOSET (FLG_KEPTTRANS, b);
4153 DOSET (FLG_REFCOUNTTRANS, b);
4154 DOSET (FLG_STATICTRANS, b);
4155 DOSET (FLG_UNKNOWNTRANS, b);
4156 DOSET (FLG_KEEPTRANS, b);
4157 DOSET (FLG_IMMEDIATETRANS, b);
4158 break;
4159
4160 default:
4161 break;
4162 }
4163
4164 if (b && !gc.anyExports
4165 && (f == FLG_EXPORTVAR || f == FLG_EXPORTFCN
4166 || f == FLG_EXPORTTYPE || f == FLG_EXPORTMACRO
4167 || f == FLG_EXPORTCONST
4168 || f == FLG_EXPORTANY))
4169 {
4170 gc.anyExports = TRUE;
4171 }
4172 }
4173
4174 bool
4175 context_maybeSet (flagcode d)
4176 {
4177 return (gc.flags[d] || gc.setLocally[d]);
4178 }
4179
4180 bool
4181 context_getFlag (flagcode d)
4182 {
4183 return (gc.flags[d]);
4184 }
4185
4186 bool
4187 context_flagOn (flagcode f, fileloc loc)
4188 {
4189 return (!context_suppressFlagMsg (f, loc));
4190 }
4191
4192 static void context_saveFlagSettings (void)
4193 {
4194 gc.savedFlags = TRUE;
4195 llassert (sizeof (gc.saveflags) == sizeof (gc.flags));
4196 memcpy (gc.saveflags, gc.flags, sizeof (gc.flags));
4197 }
4198
4199 static void context_restoreFlagSettings (void)
4200 {
4201 llassert (sizeof (gc.saveflags) == sizeof (gc.flags));
4202 memcpy (gc.flags, gc.saveflags, sizeof (gc.flags));
4203 gc.savedFlags = FALSE;
4204 }
4205
4206 void context_setFilename (fileId fid, int lineno)
4207 /*@globals fileloc g_currentloc;@*/
4208 /*@modifies g_currentloc@*/
4209 {
4210 if (fileId_baseEqual (currentFile (), fid))
4211 {
4212 setLine (lineno);
4213 return;
4214 }
4215 else
4216 {
4217 fileloc_setColumn (g_currentloc, 0);
4218
4219 if (fileloc_isSpecialFile (g_currentloc))
4220 {
4221 gc.inDerivedFile = TRUE;
4222 }
4223
4224 if (filelocStack_popPushFile (gc.locstack, g_currentloc))
4225 {
4226 int maxdepth = context_getValue (FLG_INCLUDENEST);
4227
4228 if (filelocStack_size (gc.locstack) > maxdepth)
4229 {
4230 int depth = filelocStack_includeDepth (gc.locstack);
4231
4232 if (depth > maxdepth)
4233 {
4234 if (optgenerror
4235 (FLG_INCLUDENEST,
4236 message ("Maximum include nesting depth "
4237 "(%d, current depth %d) exceeded",
4238 maxdepth,
4239 depth),
4240 filelocStack_nextTop (gc.locstack)))
4241 {
4242 filelocStack_printIncludes (gc.locstack);
4243 }
4244 }
4245 }
4246 }
4247
4248 g_currentloc = fileloc_create (fid, lineno, 1);
4249
4250 context_enterFileAux ();
4251 }
4252 }
4253
4254 void context_enterIterDef (/*@observer@*/ uentry le)
4255 {
4256 context_enterMacro (le);
4257 gc.acct = typeIdSet_subtract (gc.facct, gc.nacct);
4258 gc.kind = CX_ITERDEF;
4259 }
4260
4261 void context_enterIterEnd (/*@observer@*/ uentry le)
4262 {
4263 context_enterMacro (le);
4264 gc.kind = CX_ITEREND;
4265 }
4266
4267 void
4268 context_destroyMod (void)
4269 /*@globals killed gc@*/
4270 {
4271 int i;
4272
4273 setCodePoint ();
4274 ctype_destroyMod ();
4275
4276 setCodePoint ();
4277 fileTable_free (gc.ftab);
4278 gc.ftab = fileTable_undefined;
4279
4280 filelocStack_free (gc.locstack);
4281
4282 setCodePoint ();
4283 macrocache_free (gc.mc);
4284
4285 /* evans 2002-07-12: not reported because of reldef */
4286 for (i = 0; i < gc.nmods; i++)
4287 {
4288 cstring_free (gc.moduleaccess[i].file);
4289 }
4290
4291 sfree (gc.moduleaccess);
4292 setCodePoint ();
4293
4294 fileloc_free (gc.saveloc); gc.saveloc = fileloc_undefined;
4295 fileloc_free (gc.pushloc); gc.pushloc = fileloc_undefined;
4296
4297 setCodePoint ();
4298 sRefSetList_free (gc.modrecs);
4299 setCodePoint ();
4300 flagMarkerList_free (gc.markers);
4301 setCodePoint ();
4302 messageLog_free (gc.msgLog);
4303 setCodePoint ();
4304 clauseStack_free (gc.clauses);
4305 setCodePoint ();
4306
4307 cstring_free (gc.msgAnnote);
4308 globSet_free (gc.globs_used);
4309 metaStateTable_free (gc.stateTable);
4310 annotationTable_free (gc.annotTable);
4311 }
4312
4313 /*
4314 ** Flag shortcuts
4315 */
4316
4317 bool context_msgBoolInt (void)
4318 {
4319 return context_flagOn (FLG_BOOLINT, g_currentloc);
4320 }
4321
4322 bool context_msgCharInt (void)
4323 {
4324 return context_flagOn (FLG_CHARINT, g_currentloc);
4325 }
4326
4327 bool context_msgEnumInt (void)
4328 {
4329 return context_flagOn (FLG_ENUMINT, g_currentloc);
4330 }
4331
4332 bool context_msgLongInt (void)
4333 {
4334 return context_flagOn (FLG_LONGINT, g_currentloc);
4335 }
4336
4337 bool context_msgShortInt (void)
4338 {
4339 return context_flagOn (FLG_SHORTINT, g_currentloc);
4340 }
4341
4342 bool context_msgPointerArith (void)
4343 {
4344 return context_flagOn (FLG_POINTERARITH, g_currentloc);
4345 }
4346
4347 bool context_msgStrictOps (void)
4348 {
4349 return context_flagOn (FLG_STRICTOPS, g_currentloc);
4350 }
4351
4352 bool context_msgLh (void)
4353 {
4354 return gc.flags [FLG_DOLH];
4355 }
4356
4357 void context_pushLoc (void)
4358 {
4359 fileloc_free (gc.pushloc);
4360 gc.pushloc = gc.saveloc;
4361 gc.saveloc = fileloc_undefined;
4362 }
4363
4364 void context_popLoc (void)
4365 {
4366 gc.saveloc = fileloc_update (gc.saveloc, gc.pushloc);
4367 }
4368
4369 bool context_inGlobalScope (void)
4370 {
4371 return (usymtab_inFileScope() || usymtab_inGlobalScope ());
4372 }
4373
4374 bool context_inInnerScope (void)
4375 {
4376 return (gc.kind == CX_INNER);
4377 }
4378
4379 void context_setProtectVars (void)
4380 {
4381 gc.protectVars = TRUE;
4382 }
4383
4384 bool context_anyErrors (void)
4385 {
4386 return (gc.numerrors > 0);
4387 }
4388
4389 void context_hasError (void)
4390 {
4391 gc.numerrors++;
4392 DPRINTF (("num errors: %d", gc.numerrors));
4393 }
4394
4395 int context_numErrors (void)
4396 {
4397 return gc.numerrors;
4398 }
4399
4400 bool context_neednl (void)
4401 {
4402 return gc.neednl;
4403 }
4404
4405 void context_setNeednl (void)
4406 {
4407 gc.neednl = TRUE;
4408 }
4409
4410 int context_getExpect (void)
4411 {
4412 return (context_getValue (FLG_EXPECT));
4413 }
4414
4415 int context_getLCLExpect (void)
4416 {
4417 return (context_getValue (FLG_LCLEXPECT));
4418 }
4419
4420 int context_getLimit (void)
4421 {
4422 return (context_getValue (FLG_LIMIT));
4423 }
4424
4425 bool context_unlimitedMessages (void)
4426 {
4427 return (context_getLimit () < 0);
4428 }
4429
4430 void context_releaseVars (void)
4431 {
4432 llassert (gc.protectVars);
4433 gc.protectVars = FALSE;
4434 }
4435
4436 void context_sizeofReleaseVars (void)
4437 {
4438 /* If there is a nested sizeof, this might not hold:
4439 llassert (gc.protectVars);
4440 */
4441
4442 gc.protectVars = FALSE;
4443 }
4444
4445 bool context_inProtectVars (void)
4446 {
4447 return (gc.protectVars);
4448 }
4449
4450 # ifdef DEADCODE
4451 void context_hideShowscan (void)
4452 {
4453 gc.flags[FLG_SHOWSCAN] = FALSE;
4454 }
4455
4456 void context_unhideShowscan (void)
4457 {
4458 gc.flags[FLG_SHOWSCAN] = TRUE;
4459 }
4460 # endif /* DEADCODE */
4461
4462 bool context_inHeader (void)
4463 {
4464 return (gc.inheader);
4465 }
4466
4467 fileTable context_fileTable (void)
4468 {
4469 return gc.ftab;
4470 }
4471
4472 cstring context_tmpdir (void)
4473 {
4474 return (context_getString (FLG_TMPDIR));
4475 }
4476
4477 messageLog context_messageLog (void)
4478 {
4479 return gc.msgLog;
4480 }
4481
4482 bool context_inMacroFunction (void)
4483 {
4484 return (gc.kind == CX_MACROFCN);
4485 }
4486
4487 bool context_inMacroConstant (void)
4488 {
4489 return (gc.kind == CX_MACROCONST);
4490 }
4491
4492 bool context_inUnknownMacro (void)
4493 {
4494 return (gc.kind == CX_UNKNOWNMACRO);
4495 }
4496
4497 void context_setShownFunction (void)
4498 {
4499 gc.showfunction = FALSE;
4500 }
4501
4502 bool context_doDump (void)
4503 {
4504 return cstring_isNonEmpty (context_getString (FLG_DUMP));
4505 }
4506
4507 bool context_doMerge (void)
4508 {
4509 return cstring_isNonEmpty (context_getString (FLG_MERGE));
4510 }
4511
4512 cstring context_getDump (void)
4513 {
4514 return context_getString (FLG_DUMP);
4515 }
4516
4517 cstring context_getMerge (void)
4518 {
4519 return context_getString (FLG_MERGE);
4520 }
4521
4522 bool context_inLCLLib (void)
4523 {
4524 return (gc.kind == CX_LCLLIB);
4525 }
4526
4527
4528 /*drl add these 3/5/2003*/
4529 static bool inSizeof = FALSE;
4530
4531 bool context_inSizeof (void)
4532 {
4533 return (inSizeof);
4534 }
4535
4536 void context_enterSizeof (void)
4537 {
4538 DPRINTF((message("context_enterSizeof ") ) );
4539 inSizeof = TRUE;
4540 }
4541
4542 void context_leaveSizeof (void)
4543 {
4544 DPRINTF((message("context_leaveSizeof ") ));
4545 inSizeof = FALSE;
4546 }
4547 /*end function added 3/5/2003*/
4548
4549
4550 bool context_inImport (void)
4551 {
4552 return (gc.inimport);
4553 }
4554
4555 void context_enterImport (void)
4556 {
4557 gc.inimport = TRUE;
4558 }
4559
4560 void context_leaveImport (void)
4561 {
4562 gc.inimport = FALSE;
4563 }
4564
4565 bool context_inMacro (void)
4566 {
4567 return (gc.kind == CX_MACROFCN || gc.kind == CX_MACROCONST
4568 || gc.kind == CX_UNKNOWNMACRO
4569 || gc.kind == CX_ITERDEF || gc.kind == CX_ITEREND);
4570 }
4571
4572 bool context_inIterDef (void)
4573 {
4574 return (gc.kind == CX_ITERDEF);
4575 }
4576
4577 bool context_inIterEnd (void)
4578 {
4579 return (gc.kind == CX_ITEREND);
4580 }
4581
4582 int context_getLinesProcessed (void)
4583 {
4584 return (gc.linesprocessed);
4585 }
4586
4587 int context_getSpecLinesProcessed (void)
4588 {
4589 return (gc.speclinesprocessed);
4590 }
4591
4592 void context_processedSpecLine (void)
4593 {
4594 gc.speclinesprocessed++;
4595 }
4596
4597 void context_resetSpecLines (void)
4598 {
4599 gc.speclinesprocessed = 0;
4600
4601 }
4602
4603 bool context_inGlobalContext (void)
4604 {
4605 return (gc.kind == CX_GLOBAL);
4606 }
4607
4608 static void context_quietExitScopes (void)
4609 {
4610 /*
4611 ** Try to restore the global scope (after an error).
4612 */
4613
4614 while (!usymtab_inFileScope ())
4615 {
4616 usymtab_quietExitScope (g_currentloc);
4617 }
4618
4619 gc.cont.glob = TRUE;
4620 gc.kind = CX_GLOBAL;
4621 }
4622
4623 void context_checkGlobalScope (void)
4624 {
4625 if (gc.kind != CX_GLOBAL)
4626 {
4627 if (context_inMacro ())
4628 {
4629 ; /* evans 2001-10-14: Okay to be in a macro here! */
4630 }
4631 else
4632 {
4633 llcontbug (message ("Not in global scope as expected: %q", context_unparse ()));
4634 context_quietExitScopes ();
4635 }
4636 }
4637 }
4638
4639 void context_setFileId (fileId s)
4640 {
4641 g_currentloc = fileloc_updateFileId (g_currentloc, s);
4642 }
4643
4644 bool context_setBoolName (void)
4645 {
4646 return (!cstring_equalLit (context_getString (FLG_BOOLTYPE),
4647 DEFAULT_BOOLTYPE));
4648 }
4649
4650 cstring context_printBoolName (void)
4651 {
4652 if (context_setBoolName ())
4653 {
4654 return context_getBoolName ();
4655 }
4656 else
4657 {
4658 return cstring_makeLiteralTemp ("boolean");
4659 }
4660 }
4661
4662 cstring context_getBoolName (void)
4663 {
4664 return (context_getString (FLG_BOOLTYPE));
4665 }
4666
4667 cstring context_getFalseName (void)
4668 {
4669 return (context_getString (FLG_BOOLFALSE));
4670 }
4671
4672 cstring context_getTrueName (void)
4673 {
4674 return (context_getString (FLG_BOOLTRUE));
4675 }
4676
4677 cstring context_getLarchPath (void)
4678 {
4679 return (context_getString (FLG_LARCHPATH));
4680 }
4681
4682 cstring context_getLCLImportDir (void)
4683 {
4684 return (context_getString (FLG_LCLIMPORTDIR));
4685 }
4686
4687 static void context_setJustPopped (void)
4688 {
4689 gc.justpopped = TRUE;
4690 }
4691
4692 void context_clearJustPopped (void)
4693 {
4694 gc.justpopped = FALSE;
4695 }
4696
4697 bool context_justPopped (void)
4698 {
4699 return (gc.justpopped);
4700 }
4701
4702 void context_setMacroMissingParams (void)
4703 {
4704 gc.macroMissingParams = TRUE;
4705 }
4706
4707 void context_resetMacroMissingParams (void)
4708 {
4709 gc.macroMissingParams = FALSE;
4710 }
4711
4712 bool context_isMacroMissingParams (void)
4713 {
4714 return (gc.macroMissingParams);
4715 }
4716
4717 # ifdef DEADCODE
4718 void context_showFilelocStack (void)
4719 {
4720 filelocStack_printIncludes (gc.locstack);
4721 }
4722
4723 metaStateTable context_getMetaStateTable (void)
4724 {
4725 return gc.stateTable;
4726 }
4727 # endif /* DEADCODE */
4728
4729 metaStateInfo context_lookupMetaStateInfo (cstring key)
4730 {
4731 return metaStateTable_lookup (gc.stateTable, key);
4732 }
4733
4734 /*@null@*/ annotationInfo context_lookupAnnotation (cstring annot)
4735 {
4736 return annotationTable_lookup (gc.annotTable, annot);
4737 }
4738
4739 void context_addAnnotation (annotationInfo info)
4740 {
4741 if (annotationTable_contains (gc.annotTable, annotationInfo_getName (info)))
4742 {
4743 voptgenerror
4744 (FLG_SYNTAX,
4745 message ("Duplicate annotation declaration: %s", annotationInfo_getName (info)),
4746 annotationInfo_getLoc (info));
4747
4748 annotationInfo_free (info);
4749 }
4750 else
4751 {
4752 annotationTable_insert (gc.annotTable, info);
4753 }
4754 }
4755
4756 void context_addMetaState (cstring mname, metaStateInfo msinfo)
4757 {
4758 if (metaStateTable_contains (gc.stateTable, mname))
4759 {
4760 voptgenerror
4761 (FLG_SYNTAX,
4762 message ("Duplicate metastate declaration: %s", mname),
4763 metaStateInfo_getLoc (msinfo));
4764 cstring_free (mname);
4765 metaStateInfo_free (msinfo);
4766 }
4767 else
4768 {
4769 DPRINTF (("Adding meta state: %s", mname));
4770 metaStateTable_insert (gc.stateTable, mname, msinfo);
4771 }
4772 }
4773
4774 valueTable context_createValueTable (sRef s, stateInfo info)
4775 {
4776 if (metaStateTable_size (gc.stateTable) > 0)
4777 {
4778 valueTable res = valueTable_create (metaStateTable_size (gc.stateTable));
4779 /* should use smaller value... */
4780 DPRINTF (("Value table for: %s", sRef_unparse (s)));
4781
4782 metaStateTable_elements (gc.stateTable, msname, msi)
4783 {
4784 mtContextNode context = metaStateInfo_getContext (msi);
4785
4786 if (mtContextNode_matchesRefStrict (context, s))
4787 {
4788 DPRINTF (("Create: %s", metaStateInfo_unparse (msi)));
4789 llassert (cstring_equal (msname, metaStateInfo_getName (msi)));
4790
4791 valueTable_insert
4792 (res,
4793 cstring_copy (metaStateInfo_getName (msi)),
4794 stateValue_createImplicit (metaStateInfo_getDefaultValue (msi, s),
4795 stateInfo_copy (info)));
4796 }
4797 else
4798 {
4799 DPRINTF (("No match: %s", metaStateInfo_unparse (msi)));
4800 }
4801 }
4802 end_metaStateTable_elements ;
4803
4804 stateInfo_free (info);
4805 DPRINTF (("Value table: %s", valueTable_unparse (res)));
4806 return res;
4807 }
4808 else
4809 {
4810 stateInfo_free (info);
4811 return valueTable_undefined;
4812 }
4813 }
4814
4815 valueTable context_createGlobalMarkerValueTable (stateInfo info)
4816 {
4817 if (metaStateTable_size (gc.stateTable) > 0)
4818 {
4819 valueTable res = valueTable_create (metaStateTable_size (gc.stateTable));
4820 /* should use smaller value... */
4821
4822 metaStateTable_elements (gc.stateTable, msname, msi)
4823 {
4824 /* only add global...*/
4825 DPRINTF (("Create: %s", metaStateInfo_unparse (msi)));
4826 llassert (cstring_equal (msname, metaStateInfo_getName (msi)));
4827
4828 valueTable_insert (res,
4829 cstring_copy (metaStateInfo_getName (msi)),
4830 stateValue_create (metaStateInfo_getDefaultGlobalValue (msi),
4831 stateInfo_copy (info)));
4832 }
4833 end_metaStateTable_elements ;
4834
4835 stateInfo_free (info);
4836 DPRINTF (("Value table: %s", valueTable_unparse (res)));
4837 return res;
4838 }
4839 else
4840 {
4841 stateInfo_free (info);
4842 return valueTable_undefined;
4843 }
4844 }
4845
4846 constraintList context_getImplicitFcnConstraints (uentry ue)
4847 {
4848 constraintList ret = constraintList_makeNew ();
4849 uentryList params = uentry_getParams (ue);
4850
4851 uentryList_elements (params, el)
4852 {
4853 DPRINTF (("setImplicitfcnConstraints doing: %s", uentry_unparse(el)));
4854
4855 if (uentry_isElipsisMarker (el))
4856 {
4857 ;
4858 }
4859 else
4860 {
4861 sRef s = uentry_getSref (el);
4862
4863 DPRINTF (("Trying: %s", sRef_unparse (s)));
4864
4865 if (ctype_isPointer (sRef_getType (s)))
4866 {
4867 constraint c = constraint_makeSRefWriteSafeInt (s, 0);
4868 ret = constraintList_add (ret, c);
4869
4870 /*drl 10/23/2002 added support for out*/
4871
4872 if (!uentry_isOut(el))
4873 {
4874 c = constraint_makeSRefReadSafeInt (s, 0);
4875 ret = constraintList_add (ret , c);
4876 }
4877 }
4878 else
4879 {
4880 DPRINTF (("%s is NOT a pointer", sRef_unparseFull (s)));
4881 }
4882 }
4883 } end_uentryList_elements;
4884
4885 DPRINTF (("Returns ==> %s", constraintList_unparse (ret)));
4886 return ret;
4887 }
4888
Patched version for SPLint (Secure Programming Lint)