?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Various minor fixes for compiler/linter (other then splint itself) warnings.
[splint-patched.git] / src / context.c
blob55975e67d00c601a520f5d3dcd03ae5b67be298e
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 typedef struct
42 {
43 cstring file;
44 typeIdSet daccess;
45 } maccesst;
46
47 typedef enum {
48 CX_ERROR,
49
50 CX_GLOBAL, CX_INNER,
51 CX_FUNCTION, CX_FCNDECLARATION,
52 CX_MACROFCN, CX_MACROCONST, CX_UNKNOWNMACRO,
53 CX_ITERDEF, CX_ITEREND,
54 CX_OLDSTYLESCOPE, /* Parsing old-style parameter declarations */
55 CX_LCL, CX_LCLLIB, CX_MT
56 } kcontext;
57
58 static struct
59 {
60 int linesprocessed;
61 int speclinesprocessed;
62
63 flagMarkerList markers;
64
65 /*
66 ** used to record state where a macro must match a function name
67 ** (i.e., no params were listed in the macro definition
68 */
69
70 bool macroMissingParams BOOLBITS;
71 bool preprocessing BOOLBITS;
72 bool incommandline BOOLBITS;
73 bool insuppressregion BOOLBITS;
74 bool inDerivedFile BOOLBITS;
75 bool instandardlib BOOLBITS;
76 bool inimport BOOLBITS;
77 bool inheader BOOLBITS;
78 bool inmacrocache BOOLBITS;
79 bool protectVars BOOLBITS;
80 bool neednl BOOLBITS;
81 bool showfunction BOOLBITS;
82 bool savedFlags BOOLBITS;
83 bool justpopped BOOLBITS;
84 bool anyExports BOOLBITS;
85 bool inFunctionHeader BOOLBITS;
86
87 flagcode library;
88
89 ynm isNullGuarded;
90 fileloc saveloc;
91 fileloc pushloc;
92
93 clauseStack clauses;
94 clause inclause;
95
96 int numerrors;
97 int numbugs;
98
99 filelocStack locstack;
100 fileTable ftab;
101 cstring msgAnnote;
102 /*@observer@*/ sRef aliasAnnote;
103 /*@observer@*/ sRef aliasAnnoteAls;
104 messageLog msgLog;
105
106 macrocache mc;
107 /*@observer@*/ sRefSet mods;
108
109 /* file access types */
110 typeIdSet facct;
111
112 /* local access types (this function) */
113 typeIdSet acct;
114
115 /* no access types (@noaccess) */
116 typeIdSet nacct;
117
118 /*@observer@*/ globSet globs;
119 /*@only@*/ globSet globs_used;
120
121 int nmods;
122 int maxmods;
123 /*@reldef@*/ maccesst *moduleaccess; /* Not defined is nmods == 0. */
124
125 kcontext kind;
126
127 ctype boolType;
128
129 bool flags[NUMFLAGS];
130 bool saveflags[NUMFLAGS];
131 bool setGlobally[NUMFLAGS];
132 bool setLocally[NUMFLAGS];
133
134 int values[NUMVALUEFLAGS];
135 int counters[NUMVALUEFLAGS];
136
137 o_cstring strings[NUMSTRINGFLAGS];
138 sRefSetList modrecs; /* Keep track of file static symbols modified. */
139
140 metaStateTable stateTable; /* User-defined state information. */
141 annotationTable annotTable; /* User-defined annotations table. */
142 union u_cont
143 {
144 bool glob;
145 int cdepth;
146 /*@dependent@*/ /*@exposed@*/ uentry fcn;
147 } cont;
148
149 kcontext savekind;
150 union u_cont savecont;
151 } gc;
152
153 static /*@exposed@*/ cstring context_exposeString (flagcode p_flag) ;
154 static void context_restoreFlagSettings (void) /*@modifies gc@*/ ;
155 static void context_saveFlagSettings (void) /*@modifies gc@*/ ;
156 static void context_exitClauseAux (exprNode p_pred, exprNode p_tbranch)
157 /*@modifies gc@*/ ;
158 static void context_exitClauseSimp (void) /*@modifies gc@*/ ;
159 static void context_exitClausePlain (void) /*@modifies gc@*/ ;
160 static void context_setJustPopped (void) /*@modifies gc.justpopped@*/ ;
161 static void context_setValue (flagcode p_flag, int p_val) /*@modifies gc.flags@*/ ;
162 static void context_setFlag (flagcode p_f, bool p_b, fileloc p_loc)
163 /*@modifies gc.flags@*/ ;
164
165 static void
166 context_setFlagAux (flagcode p_f, bool p_b, bool p_inFile,
167 bool p_isRestore, fileloc p_loc)
168 /*@modifies gc.flags@*/ ;
169
170 static void context_restoreFlag (flagcode p_f, fileloc p_loc)
171 /*@modifies gc.flags@*/ ;
172
173 /*@+enumindex@*/
174
175 # ifdef DEADCODE
176 cstring context_unparseFlagMarkers (void)
177 {
178 return (flagMarkerList_unparse (gc.markers));
179 }
180 # endif /* DEADCODE */
181
182 void context_setPreprocessing (void)
183 {
184 llassert (!gc.preprocessing);
185 gc.preprocessing = TRUE;
186 }
187
188 void context_clearPreprocessing (void)
189 {
190 llassert (gc.preprocessing);
191 gc.preprocessing = FALSE;
192 }
193
194 bool context_isPreprocessing (void)
195 {
196 return gc.preprocessing;
197 }
198
199 bool context_loadingLibrary (void)
200 {
201 return (fileloc_isLib (g_currentloc));
202 }
203
204 bool context_inXHFile (void)
205 {
206 return (fileloc_isXHFile (g_currentloc));
207 }
208
209 void context_setInCommandLine (void)
210 {
211 llassert (!gc.incommandline);
212 gc.incommandline = TRUE;
213 }
214
215 void context_clearInCommandLine (void)
216 {
217 llassert (gc.incommandline);
218 gc.incommandline = FALSE;
219 }
220
221 bool context_isInCommandLine (void)
222 {
223 return gc.incommandline;
224 }
225
226 static
227 void pushClause (clause c) /*@modifies gc.clauses, gc.inclause@*/
228 {
229 gc.inclause = c;
230 clauseStack_push (gc.clauses, c);
231
232 if (clause_isConditional (c)
233 && context_getFlag (FLG_CONTROLNESTDEPTH))
234 {
235 int maxdepth = context_getValue (FLG_CONTROLNESTDEPTH);
236 int depth = clauseStack_controlDepth (gc.clauses);
237
238 if (depth == maxdepth + 1)
239 {
240 voptgenerror
241 (FLG_CONTROLNESTDEPTH,
242 message ("Maximum control nesting depth "
243 "(%d) exceeded",
244 maxdepth),
245 g_currentloc);
246 }
247 }
248 }
249
250 static
251 clause topClause (clauseStack s) /*@*/
252 {
253 if (clauseStack_isEmpty (s)) return NOCLAUSE;
254 return ((clause) clauseStack_top (s));
255 }
256
257 void
258 context_addMacroCache (/*@only@*/ cstring def)
259 {
260 DPRINTF (("macro cache: %s", def));
261 macrocache_addEntry (gc.mc, fileloc_copy (g_currentloc), def);
262 }
263
264 void
265 context_addComment (/*@only@*/ cstring def, fileloc loc)
266 {
267 macrocache_addComment (gc.mc, fileloc_copy (loc), def);
268 }
269
270 /*
271 ** returns TRUE is fl is in ignore region, or region where -code
272 **
273 ** the logic is fuzzy...
274 */
275
276 static bool
277 context_inSuppressFlagZone (fileloc fl, flagcode code)
278 {
279 ynm ret = flagMarkerList_suppressError (gc.markers, code, fl);
280 bool res = FALSE;
281
282 if (ynm_isMaybe (ret))
283 {
284 /*
285 ** whas is dis?
286 */
287
288 if (gc.savedFlags)
289 {
290 res = !gc.saveflags[code];
291 }
292 else
293 {
294 res = !context_getFlag (code);
295 }
296 }
297 else
298 {
299 res = ynm_toBoolStrict (ret);
300 }
301
302 return res;
303 }
304
305 static bool
306 context_suppressSystemMsg (fileloc fl)
307 {
308 if (context_getFlag (FLG_SYSTEMDIRERRORS))
309 {
310 return FALSE;
311 }
312 else
313 {
314 return (fileloc_isSystemFile (fl));
315 }
316 }
317
318 bool
319 context_suppressFlagMsg (flagcode flag, fileloc fl)
320 {
321 if (context_suppressSystemMsg (fl))
322 {
323 return TRUE;
324 }
325
326 DPRINTF (("Checking suppress: %s / %s", fileloc_unparse (fl), fileloc_unparse (g_currentloc)));
327
328 /* want same object compare here */
329
330 if (fileloc_equal (fl, g_currentloc) || gc.inDerivedFile)
331 {
332 DPRINTF (("In derived file: %s", bool_unparse (gc.inDerivedFile)));
333
334 return (!context_getFlag (flag)
335 || context_inSuppressRegion ()
336 || context_inSuppressZone (fl)
337 || (context_inSuppressFlagZone (fl, flag))); /* removed gc.inDerivedFile from this */
338 }
339 else
340 {
341 return (context_inSuppressFlagZone (fl, flag));
342 }
343 }
344
345 bool
346 context_suppressNotFlagMsg (flagcode flag, fileloc fl)
347 {
348
349 if (context_suppressSystemMsg (fl))
350 {
351 return TRUE;
352 }
353
354 /*@access fileloc@*/
355 if (fl == g_currentloc)
356 /*@noaccess fileloc@*/
357 {
358 return (context_getFlag (flag) || context_inSuppressRegion ());
359 }
360 else
361 {
362 /* for now... */
363 return (context_getFlag (flag) || context_inSuppressRegion ());
364 }
365 }
366
367 bool
368 context_inSuppressZone (fileloc fl)
369 {
370 if (context_suppressSystemMsg (fl))
371 {
372 return TRUE;
373 }
374
375 return (flagMarkerList_inIgnore (gc.markers, fl));
376 }
377
378 bool
379 context_inSuppressRegion (void)
380 {
381 return (gc.insuppressregion);
382 }
383
384 void
385 context_enterSuppressRegion (fileloc loc)
386 {
387 if (gc.insuppressregion)
388 {
389 gc.insuppressregion = FALSE; /* get this msg! */
390 llmsg (message
391 ("%q: New ignore errors region entered while in ignore errors region",
392 fileloc_unparse (loc)));
393 }
394
395 gc.insuppressregion = TRUE;
396 (void) flagMarkerList_add (gc.markers, flagMarker_createIgnoreOn (loc));
397 }
398
399 static void
400 context_addFlagMarker (flagcode code, ynm set, fileloc loc)
401 {
402 (void) flagMarkerList_add (gc.markers,
403 flagMarker_createLocalSet (code, set, loc));
404 }
405
406 void
407 context_enterSuppressLine (int count, fileloc loc)
408 {
409 if (context_processingMacros ())
410 {
411 return;
412 }
413
414 if (flagMarkerList_add
415 (gc.markers,
416 flagMarker_createIgnoreCount (count, loc)))
417 {
418 fileloc nextline = fileloc_copy (loc);
419 fileloc_nextLine (nextline);
420 fileloc_setColumn (nextline, 0);
421
422 check (flagMarkerList_add (gc.markers,
423 flagMarker_createIgnoreOff (nextline)));
424 fileloc_free (nextline);
425 }
426 }
427
428 void context_checkSuppressCounts (void)
429 {
430 if (context_getFlag (FLG_SUPCOUNTS))
431 {
432 flagMarkerList_checkSuppressCounts (gc.markers);
433 }
434 }
435
436 void context_incLineno (void)
437 {
438 gc.linesprocessed++;
439 incLine ();
440 }
441
442 void
443 context_exitSuppressRegion (fileloc loc)
444 {
445 if (!gc.insuppressregion)
446 {
447 voptgenerror
448 (FLG_SYNTAX,
449 message ("End ignore errors in region while not ignoring errors"),
450 loc);
451 }
452
453 gc.insuppressregion = FALSE;
454 (void) flagMarkerList_add (gc.markers, flagMarker_createIgnoreOff (loc));
455 }
456
457 void
458 context_enterMTfile (void)
459 {
460 gc.kind = CX_MT;
461 }
462
463 void
464 context_exitMTfile (void)
465 {
466 llassert (gc.kind == CX_MT);
467 gc.kind = CX_GLOBAL;
468 }
469
470 void
471 context_enterLCLfile (void)
472 {
473 gc.kind = CX_LCL;
474 gc.facct = typeIdSet_emptySet ();
475 }
476
477 static void
478 addModuleAccess (/*@only@*/ cstring fname, typeIdSet mods)
479 {
480 int i;
481
482 for (i = 0; i < gc.nmods; i++)
483 {
484 if (cstring_equal (gc.moduleaccess[i].file, fname))
485 {
486 gc.moduleaccess[i].daccess = typeIdSet_union (gc.moduleaccess[i].daccess, mods);
487 cstring_free (fname);
488 return;
489 }
490 }
491
492 if (gc.nmods == gc.maxmods)
493 {
494 maccesst *oldmods;
495
496 gc.maxmods = gc.maxmods + DEFAULTMAXMODS;
497 oldmods = gc.moduleaccess;
498
499 gc.moduleaccess = (maccesst *) dmalloc (sizeof (*gc.moduleaccess) * (gc.maxmods));
500
501 for (i = 0; i < gc.nmods; i++)
502 {
503 gc.moduleaccess[i] = oldmods[i];
504 }
505
506 sfree (oldmods);
507 }
508
509 gc.moduleaccess[gc.nmods].file = fname;
510 gc.moduleaccess[gc.nmods].daccess = mods;
511
512 gc.nmods++;
513 }
514
515 static void
516 insertModuleAccess (cstring fname, typeId t)
517 {
518 int i;
519
520 for (i = 0; i < gc.nmods; i++)
521 {
522 if (cstring_equal (gc.moduleaccess[i].file, fname))
523 {
524 gc.moduleaccess[i].daccess = typeIdSet_insert (gc.moduleaccess[i].daccess, t);
525 break;
526 }
527 }
528
529 addModuleAccess (cstring_copy (fname), typeIdSet_single (t));
530 }
531
532 void
533 context_exitLCLfile (void)
534 {
535 if (gc.kind != CX_LCLLIB)
536 {
537 cstring lclname =
538 fileLib_withoutExtension (fileTable_fileName (currentFile ()), LCL_EXTENSION);
539
540 addModuleAccess (fileLib_removePath (lclname), gc.facct);
541 cstring_free (lclname);
542 }
543
544 gc.kind = CX_GLOBAL;
545 gc.facct = typeIdSet_emptySet ();
546 }
547
548 void
549 context_dumpModuleAccess (FILE *fout)
550 {
551 int i = 0;
552
553 for (i = 0; i < gc.nmods; i++)
554 {
555 cstring td = typeIdSet_dump (gc.moduleaccess[i].daccess);
556
557 fprintf (fout, "%s#%s@\n",
558 cstring_toCharsSafe (gc.moduleaccess[i].file),
559 cstring_toCharsSafe (td));
560
561 cstring_free (td);
562 }
563 }
564
565 bool context_usingPosixLibrary (void)
566 {
567 return (gc.library == FLG_POSIXLIB
568 || gc.library == FLG_POSIXSTRICTLIB
569 || gc.library == FLG_UNIXLIB
570 || gc.library == FLG_UNIXSTRICTLIB);
571 }
572
573 bool context_usingAnsiLibrary (void)
574 {
575 return (gc.library != FLG_NOLIB);
576 }
577
578 flagcode context_getLibrary (void)
579 {
580 return gc.library;
581 }
582
583 void context_setLibrary (flagcode code)
584 {
585 gc.library = code;
586 }
587
588 /*@observer@*/ cstring context_selectedLibrary (void)
589 {
590 switch (gc.library)
591 {
592 case FLG_STRICTLIB:
593 return cstring_makeLiteralTemp (LLSTRICTLIBS_NAME);
594 case FLG_POSIXLIB:
595 return cstring_makeLiteralTemp (LLPOSIXLIBS_NAME);
596 case FLG_POSIXSTRICTLIB:
597 return cstring_makeLiteralTemp (LLPOSIXSTRICTLIBS_NAME);
598 case FLG_UNIXLIB:
599 return cstring_makeLiteralTemp (LLUNIXLIBS_NAME);
600 case FLG_UNIXSTRICTLIB:
601 return cstring_makeLiteralTemp (LLUNIXSTRICTLIBS_NAME);
602 case FLG_ANSILIB:
603 return cstring_makeLiteralTemp (LLSTDLIBS_NAME);
604 BADDEFAULT;
605 }
606 }
607
608
609 void
610 context_loadModuleAccess (FILE *in)
611 {
612 char *s = mstring_create (MAX_DUMP_LINE_LENGTH);
613 char *lasts = s;
614 char *name = mstring_create (MAX_NAME_LENGTH);
615 char *oname = name;
616 char *os = s;
617
618 while ((reader_readLine (in, s, MAX_DUMP_LINE_LENGTH) != NULL )
619 && *s == ';')
620 {
621 ;
622 }
623
624 while (s != NULL && *s != ';' && *s != '\0')
625 {
626 name = oname;
627
628 while (*s != '#' && *s != '\0')
629 {
630 *name++ = *s++;
631 }
632
633 *name = '\0';
634
635 if (*s != '#')
636 {
637 llcontbug (message ("context_loadModuleAccess: bad library line: %s\n",
638 cstring_fromChars (s)));
639 break;
640 }
641
642 s++;
643
644 addModuleAccess (cstring_copy (cstring_fromChars (oname)),
645 typeIdSet_undump (&s));
646
647 (void) reader_readLine (in, s, MAX_DUMP_LINE_LENGTH);
648 llassert (s != lasts);
649 lasts = s;
650 }
651
652 sfree (oname);
653 sfree (os);
654 }
655
656 typeIdSet context_fileAccessTypes (void)
657 {
658 return gc.facct;
659 }
660
661 void
662 context_resetModeFlags (void)
663 {
664 allFlagCodes (code)
665 {
666 if (flagcode_isModeFlag (code))
667 {
668 context_setFlag (code, FALSE, g_currentloc);
669 }
670 } end_allFlagCodes;
671 }
672
673 /*
674 ** resetAllFlags
675 **
676 ** Set all flags to FALSE, except for a few which are
677 ** true by default.
678 **
679 ** Set all values and strings to appropriate defaults.
680 ** Set all counters to 0.
681 */
682
683 static void
684 conext_resetAllCounters (void)
685 {
686 int i;
687
688 for (i = 0; i < NUMVALUEFLAGS; i++)
689 {
690 gc.counters[i] = 0;
691 }
692 }
693
694 void
695 context_resetAllFlags (void)
696 {
697 DPRINTF (("******** Reset all flags"));
698
699 allFlagCodes (code)
700 {
701 gc.flags[code] = FALSE;
702
703 if (flagcode_hasNumber (code))
704 {
705 int val = 0;
706
707 /*@-loopswitchbreak@*/
708 switch (code)
709 {
710 case FLG_LIMIT:
711 val = DEFAULT_LIMIT; break;
712 case FLG_BUGSLIMIT:
713 val = DEFAULT_BUGSLIMIT; break;
714 case FLG_LINELEN:
715 val = DEFAULT_LINELEN; break;
716 case FLG_INDENTSPACES:
717 val = DEFAULT_INDENTSPACES; break;
718 case FLG_LOCINDENTSPACES:
719 val = DEFAULT_LOCINDENTSPACES; break;
720 case FLG_EXTERNALNAMELEN:
721 val = ISO99_EXTERNALNAMELEN; break;
722 case FLG_INTERNALNAMELEN:
723 val = ISO99_INTERNALNAMELEN; break;
724 case FLG_COMMENTCHAR:
725 val = (int) DEFAULT_COMMENTCHAR; break;
726 case FLG_CONTROLNESTDEPTH:
727 val = (int) ISO99_CONTROLNESTDEPTH; break;
728 case FLG_STRINGLITERALLEN:
729 val = (int) ISO99_STRINGLITERALLEN; break;
730 case FLG_INCLUDENEST:
731 val = (int) ISO99_INCLUDENEST; break;
732 case FLG_NUMSTRUCTFIELDS:
733 val = (int) ISO99_NUMSTRUCTFIELDS; break;
734 case FLG_NUMENUMMEMBERS:
735 val = (int) ISO99_NUMENUMMEMBERS; break;
736 case FLG_EXPECT:
737 case FLG_LCLEXPECT:
738 break;
739 default:
740 llbug (message ("Bad value flag: %s", flagcode_unparse (code)));
741 }
742 /*@=loopswitchbreak@*/
743
744 DPRINTF (("Set value: [%s] / %d", flagcode_unparse (code), val));
745 context_setValue (code, val);
746 DPRINTF (("Set value: [%s] / %d", flagcode_unparse (code), context_getValue (code)));
747 llassert (context_getValue (code) == val);
748 }
749 else if (flagcode_hasChar (code))
750 {
751 llassert (code == FLG_COMMENTCHAR);
752 context_setCommentMarkerChar (DEFAULT_COMMENTCHAR);
753 }
754 else if (flagcode_hasString (code))
755 {
756 cstring val = cstring_undefined;
757
758 switch (code)
759 { /*@-loopswitchbreak@*/
760 case FLG_LARCHPATH:
761 {
762 cstring larchpath = cstring_makeLiteralTemp (getenv (LARCH_PATH));
763
764 if (cstring_isDefined (larchpath))
765 {
766 val = cstring_copy (larchpath);
767 }
768 else
769 {
770 val = osd_pathListConcat (".", PKGDATADIR CONNECTSTR DEFAULT_LARCHDIR);
771 }
772
773 break;
774 }
775 case FLG_LCLIMPORTDIR:
776 {
777 cstring lclimpordir = cstring_makeLiteralTemp (getenv (LCLIMPORTDIR));
778
779 if (cstring_isDefined (lclimpordir))
780 {
781 val = cstring_copy (lclimpordir);
782 }
783 else
784 {
785 val = osd_pathListConcat (".", PKGDATADIR CONNECTSTR DEFAULT_LCLDIR);
786 }
787
788 break;
789 }
790 case FLG_TMPDIR:
791 val = osd_getTempDir(); break;
792 case FLG_BOOLTYPE:
793 val = cstring_makeLiteral (DEFAULT_BOOLTYPE); break;
794 case FLG_BOOLFALSE:
795 val = cstring_makeLiteral ("false"); break;
796 case FLG_BOOLTRUE:
797 val = cstring_makeLiteral ("true"); break;
798 case FLG_MACROVARPREFIX:
799 val = cstring_makeLiteral ("m_"); break;
800 case FLG_SYSTEMDIRS:
801 val = cstring_makeLiteral (DEFAULT_SYSTEMDIRS); break;
802 default:
803 break;
804 } /*@=loopswitchbreak@*/
805
806 context_setString (code, val);
807 }
808 else
809 {
810 ; /* nothing to set */
811 }
812 } end_allFlagCodes;
813
814 /*
815 ** These flags are true by default.
816 */
817
818 /* eventually, move this into flags.def */
819
820 gc.flags[FLG_STREAMOVERWRITE] = TRUE;
821 gc.flags[FLG_OBVIOUSLOOPEXEC] = TRUE;
822 gc.flags[FLG_MODIFIES] = TRUE;
823 gc.flags[FLG_NESTCOMMENT] = TRUE;
824 gc.flags[FLG_GLOBALS] = TRUE;
825 gc.flags[FLG_FULLINITBLOCK] = TRUE;
826 gc.flags[FLG_INITSIZE] = TRUE;
827 gc.flags[FLG_INITALLELEMENTS] = TRUE;
828 gc.flags[FLG_NULLINIT] = TRUE;
829
830 gc.flags[FLG_STRINGLITTOOLONG] = TRUE;
831 gc.flags[FLG_MACROCONSTDIST] = TRUE;
832 gc.flags[FLG_LIKELYBOOL] = TRUE;
833 gc.flags[FLG_ZEROPTR] = TRUE;
834 gc.flags[FLG_NUMLITERAL] = TRUE;
835 gc.flags[FLG_DUPLICATEQUALS] = TRUE;
836 gc.flags[FLG_SKIPISOHEADERS] = TRUE;
837 gc.flags[FLG_SKIPPOSIXHEADERS] = FALSE;
838 gc.flags[FLG_SYSTEMDIREXPAND] = TRUE;
839 gc.flags[FLG_UNRECOGCOMMENTS] = TRUE;
840 gc.flags[FLG_UNRECOGFLAGCOMMENTS] = TRUE;
841 gc.flags[FLG_CASTFCNPTR] = TRUE;
842 gc.flags[FLG_DOLCS] = TRUE;
843 gc.flags[FLG_USEVARARGS] = TRUE;
844 gc.flags[FLG_MAINTYPE] = TRUE;
845 gc.flags[FLG_SPECMACROS] = TRUE;
846 gc.flags[FLG_REDEF] = TRUE;
847 gc.flags[FLG_MACRONEXTLINE] = TRUE;
848
849 gc.flags[FLG_SIZEOFFORMALARRAY] = TRUE;
850 gc.flags[FLG_FIXEDFORMALARRAY] = TRUE;
851
852 gc.flags[FLG_UNRECOGDIRECTIVE] = TRUE;
853 gc.flags[FLG_WARNUSE] = TRUE;
854 gc.flags[FLG_PREDASSIGN] = TRUE;
855 gc.flags[FLG_MODOBSERVER] = TRUE;
856 gc.flags[FLG_MACROVARPREFIXEXCLUDE] = TRUE;
857 gc.flags[FLG_EXTERNALNAMECASEINSENSITIVE] = TRUE;
858
859 gc.flags[FLG_PARAMIMPTEMP] = TRUE;
860 gc.flags[FLG_RETIMPONLY] = TRUE;
861 gc.flags[FLG_GLOBIMPONLY] = TRUE;
862 gc.flags[FLG_STRUCTIMPONLY] = TRUE;
863 gc.flags[FLG_PREPROC] = TRUE;
864 gc.flags[FLG_NAMECHECKS] = TRUE;
865 gc.flags[FLG_FORMATCODE] = TRUE;
866 gc.flags[FLG_FORMATTYPE] = TRUE;
867 gc.flags[FLG_BADFLAG] = TRUE;
868 gc.flags[FLG_WARNFLAGS] = TRUE;
869 gc.flags[FLG_WARNRC] = TRUE;
870 gc.flags[FLG_FILEEXTENSIONS] = TRUE;
871 gc.flags[FLG_WARNUNIXLIB] = FALSE;
872 gc.flags[FLG_WARNPOSIX] = TRUE;
873 gc.flags[FLG_SHOWCOL] = TRUE;
874 gc.flags[FLG_SHOWDEEPHISTORY] = FALSE; /* TRUE; */
875 gc.flags[FLG_SHOWFUNC] = TRUE;
876 gc.flags[FLG_SUPCOUNTS] = TRUE;
877 gc.flags[FLG_HINTS] = TRUE;
878 gc.flags[FLG_SYNTAX] = TRUE;
879 gc.flags[FLG_TYPE] = TRUE;
880 gc.flags[FLG_INCOMPLETETYPE] = TRUE;
881 gc.flags[FLG_ABSTRACT] = TRUE;
882 gc.flags[FLG_NUMABSTRACT] = TRUE;
883 gc.flags[FLG_ITERBALANCE] = TRUE;
884 gc.flags[FLG_ITERYIELD] = TRUE;
885 gc.flags[FLG_DUPLICATECASES] = TRUE;
886 gc.flags[FLG_ALWAYSEXITS] = TRUE;
887 gc.flags[FLG_EMPTYRETURN] = TRUE;
888 gc.flags[FLG_MACRORETURN] = TRUE;
889 gc.flags[FLG_UNRECOG] = TRUE;
890 gc.flags[FLG_SYSTEMUNRECOG] = TRUE;
891 gc.flags[FLG_LINTCOMMENTS] = TRUE;
892 gc.flags[FLG_ACCESSCZECH] = TRUE;
893 gc.flags[FLG_ACCESSMODULE] = TRUE;
894 gc.flags[FLG_ACCESSFILE] = TRUE;
895 gc.flags[FLG_MACROVARPREFIX] = TRUE;
896
897 gc.flags[FLG_ANNOTATIONERROR] = TRUE;
898 gc.flags[FLG_COMMENTERROR] = TRUE;
899
900 /*
901 ** Changed for version 2.4.
902 */
903
904 gc.flags[FLG_GNUEXTENSIONS] = TRUE;
905
906 /*
907 Changed for 3.0.0.19
908 */
909
910 /* commenting ou until some output issues are fixed */
911 gc.flags[FLG_ORCONSTRAINT] = TRUE;
912
913 gc.flags[FLG_CONSTRAINTLOCATION] = TRUE;
914
915 /*drl 1/18/2002*/
916 gc.flags[FLG_WARNSYSFILES] = TRUE;
917
918 /*
919 ** On by default for Win32, but not Unix
920 */
921
922 # if defined (WIN32) || defined (OS2)
923 gc.flags[FLG_PARENFILEFORMAT] = TRUE;
924 gc.flags[FLG_CASEINSENSITIVEFILENAMES] = TRUE;
925 # endif
926 }
927
928 /*
929 ** C is way-lame, and you can initialize an array to a constant except where
930 ** it is declared. Hence, a macro is used to set the modeflags.
931 */
932
933 /*@notfunction@*/
934 # define SETFLAGS() \
935 { int i = 0; while (modeflags[i] != INVALID_FLAG) { \
936 if (!flagcode_isModeFlag (modeflags[i])) \
937 { llbug (message ("not a mode flag: %s", \
938 flagcode_unparse (modeflags[i]))); } \
939 else { context_setFlag (modeflags[i], TRUE, g_currentloc); } i++; }}
940
941 static void context_setModeAux (cstring p_s, bool p_warn) ;
942
943 void
944 context_setMode (cstring s)
945 {
946 context_setModeAux (s, TRUE);
947 }
948
949 void
950 context_setModeNoWarn (cstring s)
951 {
952 context_setModeAux (s, FALSE);
953 }
954
955 void
956 context_setModeAux (cstring s, bool warn)
957 {
958 intSet setflags = intSet_new ();
959
960 allFlagCodes (code)
961 {
962 if (flagcode_isModeFlag (code))
963 {
964 if (gc.setGlobally[code])
965 {
966 (void) intSet_insert (setflags, (int) code);
967 }
968 }
969 } end_allFlagCodes;
970
971 if (!intSet_isEmpty (setflags))
972 {
973 cstring rflags = cstring_undefined;
974 int num = 0;
975
976 intSet_elements (setflags, el)
977 {
978 if (cstring_isUndefined (rflags))
979 {
980 rflags = cstring_copy (flagcode_unparse ((flagcode) (el)));
981 }
982 else
983 {
984 rflags = message ("%q, %s", rflags,
985 flagcode_unparse ((flagcode) el));
986 }
987
988 num++;
989 if (num > 4 && intSet_size (setflags) > 6)
990 {
991 rflags = message ("%q, (%d others) ...", rflags,
992 intSet_size (setflags) - num);
993 break;
994 }
995 } end_intSet_elements ;
996
997 if (warn)
998 {
999 voptgenerror (FLG_WARNFLAGS,
1000 message ("Setting mode %s after setting mode flags will "
1001 "override set values of flags: %s",
1002 s, rflags),
1003 g_currentloc);
1004 }
1005
1006 cstring_free (rflags);
1007 }
1008
1009 intSet_free (setflags);
1010
1011 context_resetModeFlags ();
1012
1013 if (cstring_equalLit (s, "standard"))
1014 {
1015 flagcode modeflags[] =
1016 {
1017 FLG_ENUMINT, FLG_MACROMATCHNAME,
1018 FLG_STRINGLITNOROOM,
1019 FLG_STRINGLITNOROOMFINALNULL,
1020 FLG_MACROUNDEF, FLG_RELAXQUALS,
1021 FLG_USEALLGLOBS, FLG_CHECKSTRICTGLOBALS,
1022 FLG_CHECKSTRICTGLOBALIAS,
1023 FLG_CHECKEDGLOBALIAS,
1024 FLG_CHECKMODGLOBALIAS,
1025 FLG_PREDBOOLOTHERS, FLG_PREDBOOLINT,
1026 FLG_UNSIGNEDCOMPARE,
1027 FLG_PARAMUNUSED, FLG_VARUNUSED, FLG_FUNCUNUSED,
1028 FLG_TYPEUNUSED,
1029 FLG_ABSTRACTCOMPARE,
1030 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED, FLG_FIELDUNUSED,
1031 FLG_PTRNUMCOMPARE, FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
1032 FLG_MUTREP, FLG_NOEFFECT, FLG_IMPTYPE,
1033 FLG_RETVALOTHER, FLG_RETVALBOOL, FLG_RETVALINT,
1034 FLG_SPECUNDEF, FLG_INCONDEFS, FLG_INCONDEFSLIB, FLG_MISPLACEDSHAREQUAL,
1035 FLG_MATCHFIELDS,
1036 FLG_FORMATCONST,
1037 FLG_MACROPARAMS, FLG_MACROASSIGN, FLG_SEFPARAMS,
1038 FLG_MACROSTMT, FLG_MACROPARENS,
1039 FLG_MACROFCNDECL,
1040 FLG_MACROCONSTDECL,
1041 FLG_MACROREDEF, FLG_INFLOOPS, FLG_UNREACHABLE,
1042 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE, FLG_USEDEF,
1043 FLG_FIRSTCASE,
1044 FLG_NESTEDEXTERN,
1045 FLG_NUMLITERAL,
1046 FLG_ZEROBOOL,
1047
1048 /* memchecks flags */
1049 FLG_NULLDEREF,
1050 FLG_NULLSTATE, FLG_NULLASSIGN,
1051 FLG_NULLPASS, FLG_NULLRET,
1052 FLG_ALLOCMISMATCH,
1053
1054 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF,
1055 FLG_RETSTACK,
1056
1057 /* memtrans flags */
1058 FLG_EXPOSETRANS,
1059 FLG_OBSERVERTRANS,
1060 FLG_DEPENDENTTRANS,
1061 FLG_NEWREFTRANS,
1062 FLG_ONLYTRANS,
1063 FLG_OWNEDTRANS,
1064 FLG_FRESHTRANS,
1065 FLG_SHAREDTRANS,
1066 FLG_TEMPTRANS,
1067 FLG_KEPTTRANS,
1068 FLG_REFCOUNTTRANS,
1069 FLG_STATICTRANS,
1070 FLG_UNKNOWNTRANS,
1071 FLG_KEEPTRANS,
1072 FLG_IMMEDIATETRANS,
1073 FLG_NUMABSTRACTCAST,
1074 FLG_EXPORTLOCAL,
1075
1076 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1077 FLG_MUSTFREEONLY,
1078 FLG_MUSTFREEFRESH,
1079 FLG_MUSTDEFINE, FLG_GLOBSTATE,
1080 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1081 FLG_MEMIMPLICIT,
1082 FLG_BRANCHSTATE,
1083 FLG_STATETRANSFER, FLG_STATEMERGE,
1084 FLG_EVALORDER, FLG_SHADOW, FLG_READONLYSTRINGS,
1085 FLG_EXITARG,
1086 FLG_IMPCHECKEDSPECGLOBALS,
1087 FLG_MODGLOBS, FLG_WARNLINTCOMMENTS,
1088 FLG_IFEMPTY, FLG_REALCOMPARE,
1089 FLG_BOOLOPS, FLG_PTRNEGATE,
1090 FLG_SHIFTNEGATIVE,
1091 FLG_SHIFTIMPLEMENTATION,
1092 FLG_BUFFEROVERFLOWHIGH,
1093 FLG_BUFFEROVERFLOW,
1094 INVALID_FLAG
1095 } ;
1096
1097 SETFLAGS ();
1098 }
1099 else if (cstring_equalLit (s, "weak"))
1100 {
1101 flagcode modeflags[] =
1102 {
1103 FLG_BOOLINT, FLG_CHARINT, FLG_FLOATDOUBLE, FLG_LONGINT, FLG_SHORTINT,
1104 FLG_ENUMINT, FLG_RELAXQUALS, FLG_FORWARDDECL,
1105 FLG_CHARINDEX, FLG_NUMABSTRACTINDEX, FLG_ABSTVOIDP, FLG_USEALLGLOBS,
1106 FLG_CHARUNSIGNEDCHAR,
1107 FLG_PREDBOOLOTHERS,
1108 FLG_NUMABSTRACTLIT,
1109 FLG_VARUNUSED, FLG_FUNCUNUSED,
1110 FLG_TYPEUNUSED,
1111 FLG_CHECKSTRICTGLOBALS, FLG_MACROMATCHNAME,
1112 FLG_RETVALOTHER,
1113 FLG_IFEMPTY,
1114 FLG_BUFFEROVERFLOWHIGH,
1115 FLG_RETSTACK, FLG_PTRNEGATE,
1116 FLG_STATETRANSFER, FLG_STATEMERGE,
1117 FLG_LONGUNSIGNEDINTEGRAL,
1118 FLG_LONGUNSIGNEDUNSIGNEDINTEGRAL,
1119 FLG_NUMLITERAL,
1120 FLG_CHARINTLITERAL,
1121 FLG_ZEROBOOL,
1122 FLG_BUFFEROVERFLOWHIGH,
1123 FLG_STRINGLITNOROOM,
1124 FLG_STRINGLITNOROOMFINALNULL,
1125 INVALID_FLAG
1126 } ;
1127
1128 SETFLAGS ();
1129 }
1130 else if (cstring_equalLit (s, "checks"))
1131 {
1132 flagcode modeflags[] =
1133 {
1134 FLG_EXPORTLOCAL, FLG_IMPTYPE,
1135 FLG_NUMABSTRACTCAST,
1136 FLG_ABSTRACTCOMPARE,
1137 FLG_STATETRANSFER, FLG_STATEMERGE,
1138 FLG_CHECKSTRICTGLOBALIAS,
1139 FLG_CHECKEDGLOBALIAS,
1140 FLG_CHECKMODGLOBALIAS,
1141 FLG_UNCHECKEDGLOBALIAS,
1142 FLG_FORMATCONST,
1143 FLG_STRINGLITNOROOM,
1144 FLG_STRINGLITNOROOMFINALNULL,
1145 FLG_STRINGLITSMALLER,
1146 FLG_EXITARG, FLG_PTRNUMCOMPARE,
1147 FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
1148 FLG_MACROUNDEF, FLG_MUSTMOD, FLG_ALLGLOBALS,
1149 FLG_PREDBOOLOTHERS, FLG_PREDBOOLPTR, FLG_PREDBOOLINT,
1150 FLG_USEALLGLOBS, FLG_MUTREP, FLG_RETALIAS,
1151 FLG_RETEXPOSE, FLG_ASSIGNEXPOSE, FLG_CASTEXPOSE,
1152 FLG_FUNCUNUSED, FLG_GLOBALSIMPMODIFIESNOTHING,
1153 FLG_TYPEUNUSED, FLG_FIELDUNUSED, FLG_PARAMUNUSED, FLG_VARUNUSED,
1154 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED,
1155 FLG_NOEFFECT, FLG_EXPORTHEADER, FLG_EXPORTHEADERVAR,
1156 FLG_RETVALOTHER, FLG_RETVALBOOL, FLG_RETVALINT,
1157 FLG_SPECUNDEF, FLG_IMPCHECKMODINTERNALS,
1158 FLG_DECLUNDEF, FLG_INCONDEFS, FLG_INCONDEFSLIB,
1159 FLG_MISPLACEDSHAREQUAL, FLG_REDUNDANTSHAREQUAL,
1160 FLG_NUMABSTRACTPRINT,
1161 FLG_MATCHFIELDS,
1162 FLG_MACROPARAMS,
1163 FLG_MACROASSIGN,
1164 FLG_DECLPARAMMATCH,
1165 FLG_FCNDEREF,
1166 FLG_FIRSTCASE,
1167 FLG_SEFPARAMS, FLG_SEFUNSPEC, FLG_MACROSTMT, FLG_MACROPARENS,
1168 FLG_MACROCONSTDECL,
1169 FLG_MACROFCNDECL,
1170 FLG_MACROREDEF,
1171 FLG_INFLOOPS, FLG_INFLOOPSUNCON,
1172 FLG_UNREACHABLE,
1173 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE,
1174 FLG_EVALORDER, FLG_USEDEF,
1175 FLG_NESTEDEXTERN,
1176
1177 /* warn use flags */
1178 FLG_MULTITHREADED, FLG_PORTABILITY, FLG_SUPERUSER, FLG_IMPLEMENTATIONOPTIONAL,
1179 FLG_BUFFEROVERFLOWHIGH,
1180
1181 /* memchecks flags */
1182
1183 FLG_NULLSTATE, FLG_NULLDEREF, FLG_NULLASSIGN,
1184 FLG_NULLPASS, FLG_NULLRET,
1185 FLG_ALLOCMISMATCH,
1186
1187 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF, FLG_RETSTACK,
1188
1189 /* memtrans flags */
1190 FLG_EXPOSETRANS,
1191 FLG_OBSERVERTRANS,
1192 FLG_DEPENDENTTRANS,
1193 FLG_NEWREFTRANS,
1194 FLG_ONLYTRANS,
1195 FLG_OWNEDTRANS,
1196 FLG_FRESHTRANS,
1197 FLG_SHAREDTRANS,
1198 FLG_TEMPTRANS,
1199 FLG_KEPTTRANS,
1200 FLG_REFCOUNTTRANS,
1201 FLG_STATICTRANS,
1202 FLG_UNKNOWNTRANS,
1203 FLG_STATICINITTRANS,
1204 FLG_UNKNOWNINITTRANS,
1205 FLG_KEEPTRANS,
1206 FLG_IMMEDIATETRANS,
1207 FLG_ONLYUNQGLOBALTRANS,
1208 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1209 FLG_MUSTFREEONLY,
1210 FLG_MUSTFREEFRESH,
1211 FLG_MUSTDEFINE, FLG_GLOBSTATE,
1212 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1213 FLG_MEMIMPLICIT,
1214 FLG_BRANCHSTATE,
1215 FLG_NULLPOINTERARITH,
1216 FLG_SHADOW, FLG_DEPARRAYS,
1217 FLG_REDECL, FLG_READONLYSTRINGS, FLG_READONLYTRANS,
1218 FLG_LOOPLOOPBREAK, FLG_SWITCHLOOPBREAK, FLG_MODGLOBS,
1219 FLG_CHECKSTRICTGLOBALS, FLG_IMPCHECKEDSPECGLOBALS,
1220 FLG_MACROMATCHNAME, FLG_WARNLINTCOMMENTS,
1221 FLG_INCLUDENEST, FLG_ISORESERVED, FLG_CPPNAMES,
1222 FLG_NOPARAMS, FLG_IFEMPTY, FLG_WHILEEMPTY, FLG_REALCOMPARE, FLG_REALRELATECOMPARE,
1223 FLG_BOOLOPS, FLG_SHIFTNEGATIVE,
1224 FLG_SHIFTIMPLEMENTATION,
1225 FLG_BUFFEROVERFLOWHIGH, FLG_BUFFEROVERFLOW,
1226 INVALID_FLAG } ;
1227
1228 SETFLAGS ();
1229 }
1230 else if (cstring_equalLit (s, "strict"))
1231 {
1232 flagcode modeflags[] =
1233 {
1234 FLG_ABSTRACTCOMPARE,
1235 FLG_CHECKSTRICTGLOBALIAS,
1236 FLG_NUMABSTRACTCAST,
1237 FLG_CHECKEDGLOBALIAS,
1238 FLG_CHECKMODGLOBALIAS,
1239 FLG_UNCHECKEDGLOBALIAS,
1240 FLG_MODFILESYSTEM,
1241 FLG_MACROMATCHNAME,
1242 FLG_FORMATCONST,
1243 FLG_NUMABSTRACTPRINT,
1244 FLG_STRINGLITNOROOM,
1245 FLG_STRINGLITNOROOMFINALNULL,
1246 FLG_STRINGLITSMALLER,
1247 FLG_STATETRANSFER, FLG_STATEMERGE,
1248 FLG_MACROUNDEF, FLG_MUTREP, FLG_MUSTMOD,
1249 FLG_ALLGLOBALS, FLG_IMPTYPE,
1250 FLG_MODNOMODS, FLG_MODGLOBSUNSPEC, FLG_MODSTRICTGLOBSUNSPEC,
1251 FLG_GLOBUNSPEC, FLG_SIZEOFTYPE,
1252 FLG_EXPORTHEADER, FLG_EXPORTHEADERVAR,
1253 FLG_NOPARAMS, FLG_OLDSTYLE, FLG_EXITARG,
1254 FLG_RETSTACK,
1255 FLG_FCNDEREF,
1256 FLG_ONLYUNQGLOBALTRANS,
1257 FLG_GLOBALSIMPMODIFIESNOTHING,
1258 FLG_PREDBOOLOTHERS, FLG_PREDBOOLPTR, FLG_PREDBOOLINT,
1259 FLG_INTERNALGLOBS, FLG_INTERNALGLOBSNOGLOBS,
1260 FLG_USEALLGLOBS, FLG_RETALIAS,
1261 FLG_MODGLOBS, FLG_MODGLOBSUNSPEC, FLG_MODGLOBSUNCHECKED,
1262 FLG_RETEXPOSE, FLG_ASSIGNEXPOSE, FLG_CASTEXPOSE,
1263 FLG_NOEFFECTUNCON, FLG_EVALORDERUNCON,
1264 FLG_FUNCUNUSED,
1265 FLG_EXPORTITER, FLG_EXPORTCONST,
1266 FLG_TYPEUNUSED, FLG_FIELDUNUSED, FLG_PARAMUNUSED, FLG_TOPUNUSED,
1267 FLG_CONSTUNUSED, FLG_ENUMMEMUNUSED,
1268 FLG_VARUNUSED,
1269 FLG_NULLPOINTERARITH, FLG_POINTERARITH,
1270 FLG_PTRNUMCOMPARE,
1271 FLG_BOOLCOMPARE, FLG_UNSIGNEDCOMPARE,
1272 FLG_NOEFFECT, FLG_RETVALINT, FLG_RETVALBOOL, FLG_RETVALOTHER,
1273 FLG_ISORESERVED, FLG_ISORESERVEDLOCAL, FLG_CPPNAMES,
1274 FLG_RETVALBOOL, FLG_RETVALINT, FLG_SPECUNDEF,
1275 FLG_DECLUNDEF, FLG_STRICTOPS, FLG_INCONDEFS,
1276 FLG_MISPLACEDSHAREQUAL, FLG_REDUNDANTSHAREQUAL,
1277 FLG_INCONDEFSLIB, FLG_MATCHFIELDS, FLG_EXPORTMACRO, FLG_EXPORTVAR,
1278 FLG_EXPORTFCN, FLG_EXPORTTYPE, FLG_EXPORTLOCAL, FLG_MACROPARAMS,
1279 FLG_MACROASSIGN,
1280 FLG_SEFPARAMS, FLG_SEFUNSPEC, FLG_MACROSTMT, FLG_MACROPARENS,
1281 FLG_MACROFCNDECL,
1282 FLG_MACROCONSTDECL,
1283 FLG_MACROREDEF, FLG_MACROEMPTY,
1284 FLG_INFLOOPS, FLG_INFLOOPSUNCON,
1285 FLG_UNREACHABLE,
1286 FLG_NORETURN, FLG_CASEBREAK, FLG_MISSCASE, FLG_USEDEF,
1287 FLG_EVALORDER,
1288 FLG_MODUNCON, FLG_MODUNCONNOMODS, FLG_MODINTERNALSTRICT,
1289 FLG_MODOBSERVERUNCON,
1290
1291 FLG_NESTEDEXTERN,
1292 FLG_FIRSTCASE,
1293
1294 /* warn use flags */
1295 FLG_MULTITHREADED, FLG_PORTABILITY, FLG_SUPERUSER, FLG_IMPLEMENTATIONOPTIONAL,
1296 FLG_BUFFEROVERFLOWHIGH,
1297 FLG_BUFFEROVERFLOW, FLG_TOCTOU,
1298
1299 /* memchecks flags */
1300 FLG_NULLSTATE, FLG_NULLDEREF, FLG_NULLASSIGN,
1301 FLG_NULLPASS, FLG_NULLRET,
1302 FLG_ALLOCMISMATCH,
1303 FLG_COMPDEF, FLG_COMPMEMPASS, FLG_UNIONDEF,
1304
1305 /* memory checking flags */
1306 FLG_BOUNDSREAD, FLG_BOUNDSWRITE,
1307 FLG_LIKELYBOUNDSREAD, FLG_LIKELYBOUNDSWRITE,
1308 FLG_CHECKPOST,
1309
1310 /* memtrans flags */
1311 FLG_EXPOSETRANS,
1312 FLG_OBSERVERTRANS,
1313 FLG_DEPENDENTTRANS,
1314 FLG_NEWREFTRANS,
1315 FLG_ONLYTRANS,
1316 FLG_OWNEDTRANS,
1317 FLG_FRESHTRANS,
1318 FLG_SHAREDTRANS,
1319 FLG_TEMPTRANS,
1320 FLG_KEPTTRANS,
1321 FLG_REFCOUNTTRANS,
1322 FLG_STATICTRANS,
1323 FLG_UNKNOWNTRANS,
1324 FLG_KEEPTRANS,
1325 FLG_IMMEDIATETRANS,
1326 FLG_STATICINITTRANS,
1327 FLG_UNKNOWNINITTRANS,
1328
1329 FLG_USERELEASED, FLG_ALIASUNIQUE, FLG_MAYALIASUNIQUE,
1330 FLG_MUSTFREEONLY,
1331 FLG_MUSTFREEFRESH,
1332 FLG_MUSTDEFINE, FLG_GLOBSTATE,
1333 FLG_COMPDESTROY, FLG_MUSTNOTALIAS,
1334 FLG_MEMIMPLICIT,
1335 FLG_BRANCHSTATE,
1336
1337 FLG_DECLPARAMNAME, FLG_DECLPARAMMATCH,
1338
1339 FLG_SHADOW, FLG_DEPARRAYS,
1340 FLG_STRICTDESTROY, FLG_STRICTUSERELEASED, FLG_STRICTBRANCHSTATE,
1341 FLG_REDECL, FLG_READONLYSTRINGS, FLG_READONLYTRANS,
1342 FLG_LOOPLOOPBREAK, FLG_LOOPSWITCHBREAK, FLG_SWITCHLOOPBREAK,
1343 FLG_SWITCHSWITCHBREAK, FLG_LOOPLOOPCONTINUE,
1344 FLG_CHECKSTRICTGLOBALS, FLG_IMPCHECKEDSPECGLOBALS,
1345 FLG_ALLGLOBALS, FLG_IMPCHECKEDSTRICTGLOBALS,
1346 FLG_IMPCHECKEDSTRICTSTATICS,
1347 FLG_IMPCHECKEDSTRICTSPECGLOBALS,
1348 FLG_IMPCHECKMODINTERNALS,
1349 FLG_WARNMISSINGGLOBALS, FLG_WARNMISSINGGLOBALSNOGLOBS,
1350 FLG_WARNLINTCOMMENTS, FLG_ISORESERVEDLOCAL,
1351 FLG_INCLUDENEST, FLG_STRINGLITERALLEN,
1352 FLG_NUMSTRUCTFIELDS, FLG_NUMENUMMEMBERS,
1353 FLG_CONTROLNESTDEPTH,
1354 FLG_FORBLOCK, FLG_WHILEBLOCK,
1355 FLG_FOREMPTY, FLG_WHILEEMPTY,
1356 FLG_IFEMPTY, FLG_IFBLOCK,
1357 FLG_ELSEIFCOMPLETE,
1358 FLG_REALCOMPARE, FLG_BOOLOPS, FLG_REALRELATECOMPARE,
1359 FLG_SYSTEMDIRERRORS, FLG_UNUSEDSPECIAL,
1360
1361 FLG_SHIFTNEGATIVE,
1362 FLG_SHIFTIMPLEMENTATION,
1363 FLG_BITWISEOPS,
1364 FLG_BUFFEROVERFLOWHIGH, FLG_BUFFEROVERFLOW,
1365 INVALID_FLAG
1366 } ;
1367
1368 SETFLAGS ();
1369 }
1370 else
1371 {
1372 llcontbug (message ("context_setMode: bad mode: %s", s));
1373 }
1374 }
1375
1376 bool
1377 context_isSpecialFile (cstring fname)
1378 {
1379 cstring ext = fileLib_getExtension (fname);
1380
1381 return (cstring_equalLit (ext, ".y")
1382 || cstring_equalLit (ext, ".l")
1383 || cstring_equalLit (fname, "lex.yy.c"));
1384 }
1385
1386 bool
1387 context_isSystemDir (cstring dir)
1388 {
1389 return osd_pathPrefixInPathList (dir, context_getString (FLG_SYSTEMDIRS));
1390 }
1391
1392 void
1393 context_addFileAccessType (typeId t)
1394 {
1395 cstring base;
1396
1397 if (context_inFunctionLike ())
1398 {
1399 gc.acct = typeIdSet_insert (gc.acct, t);
1400 }
1401
1402 gc.facct = typeIdSet_insert (gc.facct, t);
1403
1404 base = fileloc_getBase (g_currentloc);
1405 insertModuleAccess (base, t);
1406 DPRINTF (("Add file access: %s / %s", typeIdSet_unparse (gc.facct),
1407 typeIdSet_unparse (gc.acct)));
1408 }
1409
1410 void
1411 context_removeFileAccessType (typeId t)
1412 {
1413 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
1414 || gc.kind == CX_UNKNOWNMACRO)
1415 {
1416 gc.acct = typeIdSet_removeFresh (gc.acct, t);
1417 }
1418
1419 gc.facct = typeIdSet_removeFresh (gc.facct, t);
1420 gc.nacct = typeIdSet_insert (gc.nacct, t);
1421 }
1422
1423 void context_enterFunctionHeader (void)
1424 {
1425 if (context_getFlag (FLG_GRAMMAR))
1426 {
1427 lldiagmsg (message ("Enter function header: %q", context_unparse ()));
1428 }
1429
1430 if (gc.kind != CX_GLOBAL)
1431 {
1432 llparseerror (cstring_makeLiteral
1433 ("Likely parse error. Function header outside global context."));
1434 }
1435 else
1436 {
1437 llassert (gc.kind == CX_GLOBAL);
1438 DPRINTF (("Enter function header!"));
1439 gc.inFunctionHeader = TRUE;
1440 }
1441 }
1442
1443 void context_exitFunctionHeader (void)
1444 {
1445 if (context_getFlag (FLG_GRAMMAR))
1446 {
1447 lldiagmsg (message ("Exit function header: %q", context_unparse ()));
1448 }
1449
1450 DPRINTF (("Exit function header!"));
1451 gc.inFunctionHeader = FALSE;
1452 }
1453
1454 bool context_inFunctionHeader (void)
1455 {
1456 return (gc.inFunctionHeader);
1457 }
1458
1459 void context_enterFunctionDeclaration (uentry e)
1460 {
1461 if (context_getFlag (FLG_GRAMMAR))
1462 {
1463 lldiagmsg (message ("Enter function declaration: %q", context_unparse ()));
1464 }
1465
1466 DPRINTF (("Enter function decl"));
1467 llassert (gc.savekind == CX_ERROR);
1468 gc.savekind = gc.kind;
1469 gc.savecont = gc.cont;
1470 gc.kind = CX_FCNDECLARATION;
1471 gc.cont.fcn = e;
1472 }
1473
1474 void context_exitFunctionDeclaration (void)
1475 {
1476 if (context_getFlag (FLG_GRAMMAR))
1477 {
1478 lldiagmsg (message ("Exit function declaration: %q", context_unparse ()));
1479 }
1480
1481 DPRINTF (("Exit function decl"));
1482 llassert (gc.savekind != CX_ERROR);
1483 llassert (gc.kind == CX_FCNDECLARATION);
1484 gc.kind = gc.savekind;
1485 gc.cont = gc.savecont;
1486
1487 gc.savekind = CX_ERROR;
1488
1489 if (context_getFlag (FLG_GRAMMAR))
1490 {
1491 lldiagmsg (message ("After exit function declaration: %q", context_unparse ()));
1492 }
1493 }
1494
1495 # ifdef DEADCODE
1496 bool context_inFunctionDeclaration (void)
1497 {
1498 return (gc.kind == CX_FCNDECLARATION);
1499 }
1500 # endif /* DEADCODE */
1501
1502 void
1503 context_enterMacro (/*@observer@*/ uentry e)
1504 {
1505 context_enterFunction (e);
1506 gc.kind = CX_MACROFCN;
1507 }
1508
1509 void
1510 context_enterUnknownMacro (/*@dependent@*/ uentry e)
1511 {
1512 llassert (uentry_isFunction (e));
1513 context_enterFunction (e);
1514 gc.kind = CX_UNKNOWNMACRO;
1515 }
1516
1517 void context_enterAndClause (exprNode e)
1518 {
1519 DPRINTF (("enter and clause: %s", exprNode_unparse (e)));
1520 usymtab_trueBranch (guardSet_copy (exprNode_getGuards (e)));
1521 pushClause (ANDCLAUSE);
1522 }
1523
1524 void context_enterOrClause (exprNode e)
1525 {
1526 usymtab_trueBranch (guardSet_invert (exprNode_getGuards (e)));
1527 pushClause (ORCLAUSE);
1528 }
1529
1530 bool context_inDeepLoop (void)
1531 {
1532 bool inLoop = FALSE;
1533
1534 clauseStack_elements (gc.clauses, el)
1535 {
1536 if (clause_isLoop (el))
1537 {
1538 if (inLoop)
1539 {
1540 return TRUE;
1541 }
1542
1543 inLoop = TRUE;
1544 }
1545 } end_clauseStack_elements;
1546
1547 return FALSE;
1548 }
1549
1550 bool context_inDeepSwitch (void)
1551 {
1552 bool inLoop = FALSE;
1553
1554 clauseStack_elements (gc.clauses, el)
1555 {
1556 if (clause_isSwitch (el))
1557 {
1558 if (inLoop)
1559 {
1560 return TRUE;
1561 }
1562
1563 inLoop = TRUE;
1564 }
1565 } end_clauseStack_elements;
1566
1567 return FALSE;
1568 }
1569
1570 bool context_inDeepLoopSwitch (void)
1571 {
1572 bool inLoop = FALSE;
1573
1574 clauseStack_elements (gc.clauses, el)
1575 {
1576 if (clause_isBreakable (el))
1577 {
1578 if (inLoop)
1579 {
1580 return TRUE;
1581 }
1582
1583 inLoop = TRUE;
1584 }
1585 } end_clauseStack_elements;
1586
1587 return FALSE;
1588 }
1589
1590 clause context_breakClause (void)
1591 {
1592 clauseStack_elements (gc.clauses, el)
1593 {
1594 if (clause_isSwitch (el))
1595 {
1596 return el;
1597 }
1598 else if (clause_isLoop (el))
1599 {
1600 return el;
1601 }
1602 else
1603 {
1604 ;
1605 }
1606 } end_clauseStack_elements;
1607
1608 return NOCLAUSE;
1609 }
1610
1611 clause context_nextBreakClause (void)
1612 {
1613 bool hasOne = FALSE;
1614
1615 clauseStack_elements (gc.clauses, el)
1616 {
1617 if (clause_isBreakable (el))
1618 {
1619 if (hasOne)
1620 {
1621 return el;
1622 }
1623 else
1624 {
1625 hasOne = TRUE;
1626 }
1627 }
1628 } end_clauseStack_elements;
1629
1630 return NOCLAUSE;
1631 }
1632
1633 bool context_inConditional (void)
1634 {
1635 clauseStack_elements (gc.clauses, el)
1636 {
1637 /*
1638 ** Should also include TRUECLAUSE and FALSECLAUSE, but need
1639 ** to distinguish if from ? for this
1640 */
1641
1642 if (clause_isBreakable (el) && (el != DOWHILECLAUSE))
1643 {
1644 return TRUE;
1645 }
1646 } end_clauseStack_elements;
1647
1648 return FALSE;
1649 }
1650
1651 void context_exitAndClause (exprNode pred, exprNode tbranch)
1652 {
1653 context_setJustPopped ();
1654
1655 llassert (gc.inclause == ANDCLAUSE);
1656
1657 usymtab_popAndBranch (pred, tbranch);
1658 clauseStack_pop (gc.clauses);
1659 gc.inclause = topClause (gc.clauses);
1660 }
1661
1662 void context_exitOrClause (exprNode pred, exprNode tbranch)
1663 {
1664 context_setJustPopped ();
1665
1666 llassert (gc.inclause == ORCLAUSE);
1667
1668 usymtab_popOrBranch (pred, tbranch);
1669 clauseStack_pop (gc.clauses);
1670 gc.inclause = topClause (gc.clauses);
1671 }
1672
1673 static void context_enterCondClauseAux (clause cl)
1674 /*@modifies gc@*/
1675 {
1676 pushClause (cl);
1677 }
1678
1679 static void context_enterTrueAux (exprNode e, clause cl)
1680 /*@modifies gc@*/
1681 {
1682 usymtab_trueBranch (guardSet_copy (exprNode_getGuards (e)));
1683 pushClause (cl);
1684 }
1685
1686 void context_enterIterClause (void)
1687 {
1688 context_enterTrueAux (exprNode_undefined, ITERCLAUSE);
1689 }
1690
1691 void context_enterDoWhileClause (void)
1692 {
1693 pushClause (DOWHILECLAUSE);
1694 }
1695
1696 void context_enterWhileClause (exprNode e)
1697 {
1698 context_enterTrueAux (e, WHILECLAUSE);
1699 }
1700
1701 void context_enterForClause (exprNode e)
1702 {
1703 context_enterTrueAux (e, FORCLAUSE);
1704 }
1705
1706 void context_enterTrueClause (exprNode e)
1707 {
1708 context_enterTrueAux (e, TRUECLAUSE);
1709 }
1710
1711 void context_enterSwitch (exprNode e)
1712 {
1713 DPRINTF (("Enter switch: %s", exprNode_unparse (e)));
1714 usymtab_switchBranch (e);
1715 context_enterCondClauseAux (SWITCHCLAUSE);
1716 }
1717
1718 void context_exitSwitch (exprNode e, bool allpaths)
1719 {
1720 usymtab_exitSwitch (e, allpaths);
1721
1722 while (clause_isCase (clauseStack_top (gc.clauses)))
1723 {
1724 clauseStack_pop (gc.clauses);
1725 }
1726
1727 context_exitClauseSimp ();
1728 }
1729
1730 void context_enterCaseClause (exprNode e)
1731 {
1732 bool branch = FALSE;
1733
1734 DPRINTF (("Enter case clause!"));
1735
1736 branch = usymtab_newCase (exprNode_undefined, e);
1737
1738 if (branch)
1739 {
1740 context_enterCondClauseAux (CASECLAUSE);
1741 }
1742 }
1743
1744 static void context_enterFalseClauseAux (exprNode e, clause cl)
1745 /*@modifies gc@*/
1746 {
1747 usymtab_altBranch (guardSet_invert (exprNode_getGuards (e)));
1748 gc.inclause = cl;
1749 clauseStack_switchTop (gc.clauses, cl);
1750 }
1751
1752 void context_enterFalseClause (exprNode e)
1753 {
1754
1755 context_enterFalseClauseAux (e, FALSECLAUSE);
1756 }
1757
1758 void
1759 context_enterConstantMacro (/*@exposed@*/ /*@dependent@*/ uentry e)
1760 {
1761 gc.kind = CX_MACROCONST;
1762 gc.cont.fcn = e;
1763 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1764
1765 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1766 gc.nacct);
1767
1768
1769 usymtab_enterScope ();
1770 sRef_enterFunctionScope ();
1771
1772 gc.globs = globSet_undefined;
1773 globSet_clear (gc.globs_used);
1774 gc.mods = sRefSet_undefined;
1775 }
1776
1777 uentry context_getHeader (void)
1778 {
1779 if (!(context_inFunctionLike () || (gc.kind == CX_MACROCONST)))
1780 {
1781 llfatalbug (message ("context_getHeader: bad call: %q",
1782 context_unparse ()));
1783 }
1784
1785 return (gc.cont.fcn);
1786 }
1787
1788 void
1789 context_setFunctionDefined (fileloc loc)
1790 {
1791 switch (gc.kind)
1792 {
1793 case CX_UNKNOWNMACRO:
1794 case CX_FUNCTION:
1795 case CX_MACROFCN:
1796 uentry_setFunctionDefined (gc.cont.fcn, loc);
1797 break;
1798 default:
1799 /* (not a bug because of parse errors) */
1800 break;
1801 }
1802 }
1803
1804 void
1805 context_enterFunction (/*@exposed@*/ uentry e)
1806 {
1807 gc.kind = CX_FUNCTION;
1808 gc.cont.fcn = e;
1809
1810 DPRINTF (("Enter function: %s", uentry_unparse (e)));
1811
1812 if (uentry_hasAccessType (e))
1813 {
1814 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1815 gc.nacct);
1816 }
1817 else
1818 {
1819 gc.acct = gc.facct;
1820 }
1821
1822 DPRINTF (("Enter function: %s / %s", uentry_unparse (e),
1823 typeIdSet_unparse (gc.acct)));
1824
1825 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1826
1827 gc.globs = uentry_getGlobs (e);
1828 globSet_clear (gc.globs_used);
1829 gc.mods = uentry_getMods (e);
1830
1831 usymtab_enterFunctionScope (e);
1832 sRef_enterFunctionScope ();
1833 }
1834
1835 bool context_inOldStyleScope(void)
1836 {
1837 return (gc.kind == CX_OLDSTYLESCOPE);
1838 }
1839
1840 void
1841 context_enterOldStyleScope (void)
1842 {
1843 gc.kind = CX_OLDSTYLESCOPE;
1844 DPRINTF (("Enter old style scope!"));
1845 usymtab_enterFunctionScope (uentry_undefined);
1846 }
1847
1848 void
1849 context_completeOldStyleFunction (uentry e)
1850 {
1851 llassert (gc.kind == CX_OLDSTYLESCOPE);
1852
1853 gc.kind = CX_FUNCTION;
1854 gc.cont.fcn = e;
1855
1856 DPRINTF (("Enter function: %s", uentry_unparse (e)));
1857
1858 if (uentry_hasAccessType (e))
1859 {
1860 gc.acct = typeIdSet_subtract (typeIdSet_union (gc.facct, uentry_accessType (e)),
1861 gc.nacct);
1862 }
1863 else
1864 {
1865 gc.acct = gc.facct;
1866 }
1867
1868 DPRINTF (("Enter function: %s / %s", uentry_unparse (e),
1869 typeIdSet_unparse (gc.acct)));
1870
1871 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1872
1873 if (!globSet_isEmpty (uentry_getGlobs (e)))
1874 {
1875 llfatalerror (message ("%q: Old-style function declaration uses a clause (rewrite with function parameters): %q",
1876 fileloc_unparse (g_currentloc), uentry_unparse (e)));
1877 }
1878
1879 gc.showfunction = context_getFlag (FLG_SHOWFUNC);
1880
1881 gc.globs = uentry_getGlobs (e);
1882 globSet_clear (gc.globs_used);
1883
1884 gc.mods = uentry_getMods (e);
1885
1886 if (!sRefSet_isEmpty (gc.mods))
1887 {
1888 llfatalerror (message ("%q: Old-style function declaration uses a clause (rewrite with function parameters): %q",
1889 fileloc_unparse (g_currentloc), uentry_unparse (e)));
1890 }
1891
1892 sRef_enterFunctionScope ();
1893 }
1894
1895 static bool context_checkStrictGlobals (void)
1896 {
1897 return (context_getFlag (FLG_CHECKSTRICTGLOBALS));
1898 }
1899
1900 static bool context_hasGlobs (void)
1901 {
1902 if (context_inFunctionLike ())
1903 {
1904 return (uentry_hasGlobs (gc.cont.fcn));
1905 }
1906 else
1907 {
1908 return (FALSE);
1909 }
1910 }
1911
1912 static bool context_checkCheckedGlobals (void)
1913 {
1914 return (context_getFlag (FLG_GLOBALS)
1915 && (context_getFlag (FLG_GLOBUNSPEC)
1916 || context_hasGlobs ()));
1917 }
1918
1919 static bool context_checkUnknownGlobals (void)
1920 {
1921 /* should be uentry_hasGlobs ? */
1922
1923 return (context_getFlag (FLG_ALLGLOBALS)
1924 && (context_getFlag (FLG_GLOBUNSPEC)
1925 || context_hasGlobs ()));
1926 }
1927
1928 static bool context_checkUncheckedGlobals (void)
1929 {
1930 return (FALSE);
1931 }
1932
1933 bool
1934 context_checkExport (uentry e)
1935 {
1936 if (!gc.anyExports) return FALSE;
1937
1938 if (uentry_isFunction (e)
1939 || (uentry_isVariable (e) && ctype_isFunction (uentry_getType (e))))
1940 {
1941 return context_maybeSet (FLG_EXPORTFCN);
1942 }
1943 else if (uentry_isExpandedMacro (e))
1944 {
1945 return context_maybeSet (FLG_EXPORTMACRO);
1946 }
1947 else if (uentry_isVariable (e))
1948 {
1949 return context_maybeSet (FLG_EXPORTVAR);
1950 }
1951 else if (uentry_isEitherConstant (e))
1952 {
1953 return context_maybeSet (FLG_EXPORTCONST);
1954 }
1955 else if (uentry_isIter (e) || uentry_isEndIter (e))
1956 {
1957 return context_maybeSet (FLG_EXPORTITER);
1958 }
1959 else if (uentry_isDatatype (e))
1960 {
1961 return context_maybeSet (FLG_EXPORTTYPE);
1962 }
1963 else
1964 {
1965 BADEXIT;
1966 }
1967 }
1968
1969 bool
1970 context_checkGlobUse (uentry glob)
1971 {
1972
1973 if (uentry_isCheckedStrict (glob))
1974 {
1975 return context_checkStrictGlobals ();
1976 }
1977 else if (uentry_isChecked (glob))
1978 {
1979 return context_checkCheckedGlobals ();
1980 }
1981 else if (uentry_isCheckedUnknown (glob) || uentry_isCheckMod (glob))
1982 {
1983 return context_checkUnknownGlobals ();
1984 }
1985 else
1986 {
1987 llassert (uentry_isUnchecked (glob));
1988
1989 return context_checkUncheckedGlobals ();
1990 }
1991 }
1992
1993 bool
1994 context_checkAliasGlob (uentry glob)
1995 {
1996 if (uentry_isCheckedStrict (glob))
1997 {
1998 return gc.flags[FLG_CHECKSTRICTGLOBALIAS];
1999 }
2000 else if (uentry_isChecked (glob))
2001 {
2002 return gc.flags[FLG_CHECKEDGLOBALIAS];
2003 }
2004 else if (uentry_isCheckMod (glob))
2005 {
2006 return gc.flags[FLG_CHECKMODGLOBALIAS];
2007 }
2008 else
2009 {
2010 llassert (uentry_isUnchecked (glob) || uentry_isCheckedUnknown (glob));
2011
2012 return gc.flags[FLG_UNCHECKEDGLOBALIAS];
2013 }
2014 }
2015
2016 bool context_checkInternalUse (void)
2017 {
2018 if (context_hasGlobs ())
2019 {
2020 return (gc.flags[FLG_INTERNALGLOBS]);
2021 }
2022 else
2023 {
2024 return (gc.flags[FLG_INTERNALGLOBSNOGLOBS]);
2025 }
2026 }
2027
2028 bool
2029 context_checkGlobMod (sRef el)
2030 {
2031 uentry ue = sRef_getUentry (el);
2032
2033 /* no: llassert (sRef_isFileOrGlobalScope (el)); also check local statics */
2034
2035 if (uentry_isCheckedModify (ue)
2036 || (!uentry_isUnchecked (ue) && (gc.flags[FLG_ALLGLOBALS])))
2037 {
2038 if (context_hasMods ())
2039 {
2040 return (gc.flags[FLG_MODGLOBS]);
2041 }
2042 else
2043 {
2044 if (uentry_isCheckedStrict (ue))
2045 {
2046 return (gc.flags[FLG_MODGLOBSUNSPEC]);
2047 }
2048 else
2049 {
2050 return (gc.flags[FLG_MODSTRICTGLOBSUNSPEC]);
2051 }
2052 }
2053 }
2054 else
2055 {
2056 if (context_hasMods ())
2057 {
2058 return (gc.flags[FLG_MODGLOBSUNCHECKED]);
2059 }
2060 else
2061 {
2062 return FALSE;
2063 }
2064 }
2065 }
2066
2067 void
2068 context_usedGlobal (/*@exposed@*/ sRef el)
2069 {
2070 if (!globSet_member (gc.globs_used, el))
2071 {
2072 /*
2073 ** The first time a global is used in a function, we need
2074 ** to clear the derived sRefs, since they were set for the
2075 ** previous function.
2076 */
2077
2078 sRef_clearDerived (el);
2079 gc.globs_used = globSet_insert (gc.globs_used, el);
2080 }
2081 }
2082
2083 /*@observer@*/ sRefSet
2084 context_modList (void)
2085 {
2086 return gc.mods;
2087 }
2088
2089 bool
2090 context_globAccess (sRef s)
2091 {
2092 llassert (sRef_isFileOrGlobalScope (s) || sRef_isKindSpecial (s));
2093 return (globSet_member (gc.globs, s));
2094 }
2095
2096 bool
2097 context_hasAccess (typeId t)
2098 {
2099 if (context_inFunctionLike ())
2100 {
2101 DPRINTF (("Access %d / %s",
2102 t, typeIdSet_unparse (gc.acct)));
2103 return (typeIdSet_member (gc.acct, t));
2104 }
2105 else
2106 {
2107 return (context_hasFileAccess (t));
2108 }
2109 }
2110
2111 bool
2112 context_hasFileAccess (typeId t)
2113 {
2114 return (typeIdSet_member (gc.facct, t));
2115 }
2116
2117 static /*@only@*/ cstring
2118 context_unparseAccess (void)
2119 {
2120 return (message ("%q / %q", typeIdSet_unparse (gc.acct),
2121 typeIdSet_unparse (gc.facct)));
2122 }
2123
2124 /*@only@*/ cstring
2125 context_unparseClauses (void)
2126 {
2127 return (clauseStack_unparse (gc.clauses));
2128 }
2129
2130 bool
2131 context_couldHaveAccess (typeId t)
2132 {
2133 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN || gc.kind == CX_UNKNOWNMACRO)
2134 {
2135 return (typeIdSet_member (gc.acct, t));
2136 }
2137 else
2138 {
2139 return (typeIdSet_member (gc.facct, t));
2140 }
2141 }
2142
2143 ctype
2144 context_getRetType (void)
2145 {
2146 ctype f = ctype_undefined;
2147
2148 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN)
2149 {
2150 f = uentry_getType (gc.cont.fcn);
2151 }
2152 else if (gc.kind == CX_UNKNOWNMACRO)
2153 {
2154 return ctype_unknown;
2155 }
2156 else
2157 {
2158 llcontbuglit ("context_getRetType: not in a function context");
2159 return ctype_unknown;
2160 }
2161
2162 if (!ctype_isFunction (f))
2163 {
2164 if (ctype_isKnown (f))
2165 {
2166 llbuglit ("context_getRetType: not a function");
2167 }
2168
2169 return ctype_unknown;
2170 }
2171 return (ctype_getReturnType (f));
2172 }
2173
2174 bool
2175 context_hasMods (void)
2176 {
2177 if (context_inFunctionLike ())
2178 {
2179 return (uentry_hasMods (gc.cont.fcn));
2180 }
2181 else
2182 {
2183 return FALSE;
2184 }
2185 }
2186
2187 void
2188 context_exitAllClauses (void)
2189 {
2190 while (!clauseStack_isEmpty (gc.clauses))
2191 {
2192 clause el = clauseStack_top (gc.clauses);
2193 gc.inclause = el;
2194
2195 if (clause_isNone (el))
2196 {
2197 usymtab_quietExitScope (g_currentloc);
2198 clauseStack_pop (gc.clauses);
2199 }
2200 else
2201 {
2202 context_exitClausePlain ();
2203 }
2204 }
2205
2206 clauseStack_clear (gc.clauses);
2207 gc.inclause = NOCLAUSE;
2208 }
2209
2210 void
2211 context_exitAllClausesQuiet (void)
2212 {
2213 while (!clauseStack_isEmpty (gc.clauses))
2214 {
2215 clause el = clauseStack_top (gc.clauses);
2216 gc.inclause = el;
2217
2218 usymtab_quietExitScope (g_currentloc);
2219 clauseStack_pop (gc.clauses);
2220 }
2221
2222 clauseStack_clear (gc.clauses);
2223 gc.inclause = NOCLAUSE;
2224 }
2225
2226 static
2227 void context_exitClauseSimp (void)
2228 {
2229
2230 context_setJustPopped ();
2231 clauseStack_pop (gc.clauses);
2232 gc.inclause = topClause (gc.clauses);
2233 }
2234
2235 static
2236 void context_exitCaseClause (void)
2237 {
2238 context_setJustPopped ();
2239 usymtab_popCaseBranch ();
2240 clauseStack_pop (gc.clauses);
2241 gc.inclause = topClause (gc.clauses);
2242 }
2243
2244 static
2245 void context_exitClauseAux (exprNode pred, exprNode tbranch)
2246 {
2247 context_setJustPopped ();
2248 usymtab_popTrueBranch (pred, tbranch, gc.inclause); /* evans 2003-02-02?: was makeAlt */
2249 clauseStack_pop (gc.clauses);
2250 gc.inclause = topClause (gc.clauses);
2251 }
2252
2253 void context_exitTrueClause (exprNode pred, exprNode tbranch)
2254 {
2255 DPRINTF (("Exit true clause: %s", exprNode_unparse (tbranch)));
2256
2257 if (gc.inclause != TRUECLAUSE)
2258 {
2259 llparseerror (cstring_makeLiteral
2260 ("Likely parse error. Conditional clauses are inconsistent."));
2261 return;
2262 }
2263
2264 context_setJustPopped ();
2265 usymtab_popTrueBranch (pred, tbranch, TRUECLAUSE);
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 static void context_popCase (void) {
2290 /*
2291 ** If we are exiting an outer clause, sometimes still in a switch case.
2292 **
2293 ** e.g.:
2294 **
2295 ** switch(a)
2296 ** {
2297 ** case 1:
2298 ** while (c>3)
2299 ** {
2300 ** case 3: ++c;
2301 ** }
2302 ** }
2303 */
2304
2305 DPRINTF (("Popping case clause: %s",
2306 clauseStack_unparse (gc.clauses)));
2307
2308 if (gc.inclause == CASECLAUSE) {
2309 context_exitCaseClause ();
2310 }
2311 }
2312
2313 void context_exitWhileClause (exprNode pred, exprNode body)
2314 {
2315 guardSet invGuards = guardSet_invert (exprNode_getGuards (pred));
2316
2317 context_popCase ();
2318
2319 if (gc.inclause != WHILECLAUSE) {
2320 DPRINTF (("Clause: %s / %s", clause_unparse (gc.inclause),
2321 clauseStack_unparse (gc.clauses)));
2322 }
2323
2324 llassert (gc.inclause == WHILECLAUSE);
2325
2326 context_setJustPopped ();
2327
2328
2329 /*
2330 ** predicate must be false after while loop (unless there are breaks)
2331 */
2332
2333 if (context_getFlag (FLG_WHILELOOPEXEC))
2334 {
2335 usymtab_popTrueExecBranch (pred, body, WHILECLAUSE);
2336 }
2337 else
2338 {
2339 usymtab_popTrueBranch (pred, body, WHILECLAUSE);
2340 }
2341
2342
2343 usymtab_addGuards (invGuards);
2344 guardSet_free (invGuards);
2345
2346 clauseStack_pop (gc.clauses);
2347 gc.inclause = topClause (gc.clauses);
2348 }
2349
2350 void context_exitDoWhileClause (exprNode pred)
2351 {
2352 guardSet invGuards = guardSet_invert (exprNode_getGuards (pred));
2353
2354 if (gc.inclause == CASECLAUSE) {
2355 /* handle Duff's device */
2356 clauseStack_pop (gc.clauses);
2357 gc.inclause = topClause (gc.clauses);
2358 }
2359
2360 llassert (gc.inclause == DOWHILECLAUSE);
2361
2362 context_setJustPopped ();
2363
2364
2365 usymtab_addGuards (invGuards);
2366 guardSet_free (invGuards);
2367
2368 clauseStack_pop (gc.clauses);
2369 gc.inclause = topClause (gc.clauses);
2370 }
2371
2372 void context_exitForClause (exprNode forPred, exprNode body)
2373 {
2374 guardSet invGuards = guardSet_invert (exprNode_getForGuards (forPred));
2375
2376 llassert (gc.inclause == FORCLAUSE);
2377 context_setJustPopped ();
2378
2379 DPRINTF (("Exit for: %s / %s", exprNode_unparse (forPred), exprNode_unparse (body)));
2380
2381 /*
2382 ** Predicate must be false after for loop (unless there are breaks)
2383 */
2384
2385 if (context_getFlag (FLG_FORLOOPEXEC))
2386 {
2387 DPRINTF (("Here: for loop exec"));
2388 usymtab_popTrueExecBranch (forPred, body, FORCLAUSE);
2389 }
2390 else
2391 {
2392 if (context_getFlag (FLG_OBVIOUSLOOPEXEC)
2393 && exprNode_loopMustExec (forPred))
2394 {
2395 DPRINTF (("Here: loop must exec"));
2396 usymtab_popTrueExecBranch (forPred, body, FORCLAUSE);
2397 }
2398 else
2399 {
2400 DPRINTF (("Pop true branch:"));
2401 usymtab_popTrueBranch (forPred, body, FORCLAUSE);
2402 }
2403 }
2404
2405 usymtab_addGuards (invGuards);
2406 guardSet_free (invGuards);
2407 clauseStack_pop (gc.clauses);
2408 gc.inclause = topClause (gc.clauses);
2409 }
2410
2411 static void context_exitClausePlain (void)
2412 {
2413 llassert (gc.inclause != NOCLAUSE);
2414
2415 if (gc.inclause == FALSECLAUSE)
2416 {
2417 context_exitClause (exprNode_undefined, exprNode_undefined, exprNode_undefined);
2418 }
2419 else
2420 {
2421 context_exitClauseAux (exprNode_undefined, exprNode_undefined);
2422 }
2423 }
2424
2425 void context_exitClause (exprNode pred, exprNode tbranch, exprNode fbranch)
2426 {
2427 context_setJustPopped ();
2428
2429 if (gc.inclause == FALSECLAUSE)
2430 {
2431 usymtab_popBranches (pred, tbranch, fbranch, FALSE, FALSECLAUSE);
2432
2433 llassert (clauseStack_top (gc.clauses) == FALSECLAUSE);
2434
2435 clauseStack_pop (gc.clauses);
2436 gc.inclause = topClause (gc.clauses);
2437 }
2438 else
2439 {
2440 context_exitTrueClause (pred, tbranch);
2441 }
2442 }
2443
2444 void
2445 context_returnFunction (void)
2446 {
2447 usymtab_checkFinalScope (TRUE);
2448 }
2449
2450 void
2451 context_exitFunction (void)
2452 {
2453 DPRINTF (("Exit function: %s", context_unparse ()));
2454
2455 if (!context_inFunction () && !context_inMacroConstant ()
2456 && !context_inUnknownMacro ()
2457 && !context_inIterDef () && !context_inIterEnd ())
2458 {
2459 /*
2460 ** not a bug because of parse errors
2461 */
2462
2463 BADBRANCH;
2464 }
2465 else
2466 {
2467 if (context_inMacro () && usymtab_inFunctionScope ())
2468 {
2469 usymtab_exitScope (exprNode_undefined);
2470 }
2471
2472 if (uentry_hasGlobs (gc.cont.fcn))
2473 {
2474 exprChecks_checkUsedGlobs (gc.globs, gc.globs_used);
2475 }
2476
2477
2478 if (uentry_hasMods (gc.cont.fcn))
2479 {
2480 if (context_getFlag (FLG_MUSTMOD))
2481 {
2482 exprNode_checkAllMods (gc.mods, gc.cont.fcn);
2483 }
2484 }
2485
2486 DPRINTF (("Exit function: %s", uentry_unparse (gc.cont.fcn)));
2487
2488 /*
2489 ** clear file static modifies
2490 */
2491
2492 /* do this first to get unused error messages */
2493
2494 usymtab_exitScope (exprNode_undefined);
2495 sRef_exitFunctionScope ();
2496
2497 gc.showfunction = FALSE;
2498 gc.kind = CX_GLOBAL;
2499 gc.cont.glob = TRUE;
2500 gc.acct = gc.facct;
2501 gc.globs = globSet_new ();
2502 globSet_clear (gc.globs_used);
2503 gc.mods = sRefSet_new ();
2504 }
2505
2506 llassert (clauseStack_isEmpty (gc.clauses));
2507 llassert (gc.inclause == NOCLAUSE);
2508 DPRINTF (("After exit function: %s", context_unparse ()));
2509 }
2510
2511 void
2512 context_quietExitFunction (void)
2513 {
2514 while (gc.kind == CX_INNER)
2515 {
2516 context_exitInnerPlain ();
2517 }
2518
2519 if (!context_inFunction () && !context_inMacroConstant () && !context_inUnknownMacro ()
2520 && !context_inIterDef () && !context_inIterEnd ())
2521 {
2522 }
2523 else
2524 {
2525 usymtab_quietExitScope (g_currentloc);
2526
2527 gc.showfunction = FALSE;
2528 gc.kind = CX_GLOBAL;
2529 gc.cont.glob = TRUE;
2530 gc.acct = gc.facct;
2531 gc.globs = globSet_new ();
2532 globSet_clear (gc.globs_used);
2533 gc.mods = sRefSet_new ();
2534
2535 sRef_exitFunctionScope ();
2536 }
2537 }
2538
2539 /*@observer@*/ uentryList
2540 context_getParams (void)
2541 {
2542 if (context_inFunctionLike ())
2543 {
2544 return (uentry_getParams (gc.cont.fcn));
2545 }
2546 else
2547 {
2548 llcontbug (message ("context_getParams: not in function: %q", context_unparse ()));
2549 return uentryList_undefined;
2550 }
2551 }
2552
2553 /*@observer@*/ globSet
2554 context_getUsedGlobs (void)
2555 {
2556 llassert (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
2557 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
2558
2559 return (gc.globs_used);
2560 }
2561
2562 cstring
2563 context_moduleName (void)
2564 {
2565 return (fileloc_getBase (g_currentloc));
2566 }
2567
2568 /*@observer@*/ globSet
2569 context_getGlobs (void)
2570 {
2571 llassert (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
2572 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
2573
2574 return (gc.globs);
2575 }
2576
2577 void
2578 context_addBoolAccess (void)
2579 {
2580 cstring bname = context_getString (FLG_BOOLTYPE);
2581 typeIdSet boolt = typeIdSet_single (usymtab_getTypeId (bname));
2582
2583 addModuleAccess (cstring_copy (bname), boolt);
2584
2585 /* for sys/types (perhaps, this is bogus!) */
2586 addModuleAccess (cstring_makeLiteral ("types"), boolt);
2587 }
2588
2589 # if 0
2590 bool
2591 context_canAccessBool (void)
2592 {
2593 return TRUE;
2594 }
2595 # endif
2596
2597 /*
2598 static typeId boolType = typeId_invalid;
2599
2600 if (typeId_isInvalid (boolType))
2601 {
2602 boolType = usymtab_getTypeId (context_getBoolName ());
2603 }
2604
2605 if (typeId_isInvalid (boolType)) {
2606 return FALSE;
2607 } else {
2608 return (typeIdSet_member (gc.acct, boolType));
2609 }
2610 }
2611 */
2612
2613 /* evs 2000-07-25: old version - replaced */
2614
2615 ctype
2616 context_boolImplementationType (void) {
2617 /* For now, this is bogus! */
2618 return ctype_int;
2619 }
2620
2621 bool
2622 context_canAccessBool (void)
2623 {
2624 static typeId boolType = typeId_invalid;
2625
2626 if (typeId_isInvalid (boolType))
2627 {
2628 boolType = usymtab_getTypeId (context_getBoolName ());
2629 }
2630
2631 if (!typeId_isInvalid (boolType))
2632 {
2633 return context_hasAccess (boolType);
2634 }
2635 else
2636 {
2637 ;
2638 }
2639
2640 return FALSE;
2641 }
2642
2643 void
2644 context_setMessageAnnote (/*@only@*/ cstring s)
2645 {
2646 llassert (cstring_isUndefined (gc.msgAnnote));
2647 gc.msgAnnote = s;
2648 }
2649
2650 bool
2651 context_hasMessageAnnote (void)
2652 {
2653 return (cstring_isDefined (gc.msgAnnote));
2654 }
2655
2656 void
2657 context_clearMessageAnnote (void)
2658 {
2659 if (cstring_isDefined (gc.msgAnnote))
2660 {
2661 cstring_free (gc.msgAnnote);
2662 gc.msgAnnote = cstring_undefined;
2663 }
2664 }
2665
2666 /*@only@*/ cstring
2667 context_getMessageAnnote (void)
2668 {
2669 cstring st = gc.msgAnnote;
2670
2671 gc.msgAnnote = cstring_undefined;
2672 return st;
2673 }
2674
2675 void
2676 context_setAliasAnnote (/*@observer@*/ sRef s, /*@observer@*/ sRef t)
2677 {
2678 llassert (sRef_isInvalid (gc.aliasAnnote));
2679 llassert (!sRef_sameName (s, t));
2680 gc.aliasAnnote = s;
2681 gc.aliasAnnoteAls = t;
2682 }
2683
2684 bool
2685 context_hasAliasAnnote (void)
2686 {
2687 return (sRef_isValid (gc.aliasAnnote));
2688 }
2689
2690 void
2691 context_clearAliasAnnote (void)
2692 {
2693 gc.aliasAnnote = sRef_undefined;
2694 }
2695
2696 cstring
2697 context_getAliasAnnote (void)
2698 {
2699 sRef ret = gc.aliasAnnote;
2700 sRef als = gc.aliasAnnoteAls;
2701
2702 llassert (sRef_isValid (ret) && sRef_isValid (als));
2703
2704 gc.aliasAnnote = sRef_undefined;
2705 return (message ("%q aliases %q", sRef_unparse (als), sRef_unparse (ret)));
2706 }
2707
2708 void
2709 context_recordFileModifies (sRefSet mods)
2710 {
2711 gc.modrecs = sRefSetList_add (gc.modrecs, mods);
2712 }
2713
2714 void
2715 context_recordFileGlobals (globSet mods)
2716 {
2717 DPRINTF (("Recording file globals: %s", globSet_unparse (mods)));
2718 /*@access globSet@*/ context_recordFileModifies (mods); /*@noaccess globSet@*/
2719 }
2720
2721 void
2722 context_setCommentMarkerChar (char c)
2723 {
2724 llassert (c != '\0');
2725
2726 context_setValue (FLG_COMMENTCHAR, (int) c);
2727 }
2728
2729 char
2730 context_getCommentMarkerChar (void)
2731 {
2732 return ((char) context_getValue (FLG_COMMENTCHAR));
2733 }
2734
2735 static void
2736 context_setValue (flagcode flag, int val)
2737 {
2738 int index = flagcode_valueIndex (flag);
2739
2740 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2741
2742 switch (flag)
2743 {
2744 case FLG_LINELEN:
2745 if (val <= 0)
2746 {
2747
2748 llerror_flagWarning (message ("Value for %s must be a positive "
2749 "number (given %d)",
2750 flagcode_unparse (flag), val));
2751 return;
2752 }
2753 if (flag == FLG_LINELEN && val < MINLINELEN)
2754 {
2755 llerror_flagWarning (message ("Value for %s must be at least %d (given %d)",
2756 flagcode_unparse (flag),
2757 MINLINELEN, val));
2758 val = MINLINELEN;
2759 }
2760 break;
2761
2762 case FLG_INCLUDENEST:
2763 case FLG_CONTROLNESTDEPTH:
2764 case FLG_STRINGLITERALLEN:
2765 case FLG_NUMSTRUCTFIELDS:
2766 case FLG_NUMENUMMEMBERS:
2767 case FLG_INDENTSPACES:
2768 if (val < 0)
2769 {
2770 llerror_flagWarning (message ("Value for %s must be a non-negative "
2771 "number (given %d)",
2772 flagcode_unparse (flag), val));
2773 return;
2774 }
2775
2776 break;
2777 default:
2778 break;
2779 }
2780
2781 DPRINTF (("Set value [%s] %d = %d", flagcode_unparse (flag), index, val));
2782 gc.values[index] = val;
2783 }
2784
2785 void
2786 context_setValueAndFlag (flagcode flag, int val)
2787 {
2788 gc.flags[flag] = TRUE;
2789 context_setValue (flag, val);
2790 }
2791
2792 int
2793 context_getValue (flagcode flag)
2794 {
2795 int index = flagcode_valueIndex (flag);
2796
2797 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2798 DPRINTF (("Get value [%s] %d = %d", flagcode_unparse (flag), index, gc.values[index]));
2799 return (gc.values[index]);
2800 }
2801
2802 # ifdef DEADCODE
2803 int
2804 context_getCounter (flagcode flag)
2805 {
2806 int index = flagcode_valueIndex (flag);
2807
2808 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2809 return (gc.counters[index]);
2810 }
2811
2812 void
2813 context_incCounter (flagcode flag)
2814 {
2815 int index = flagcode_valueIndex (flag);
2816
2817 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2818 /* check limit */
2819 gc.counters[index]++;
2820 }
2821
2822 void
2823 context_decCounter (flagcode flag)
2824 {
2825 int index = flagcode_valueIndex (flag);
2826
2827 llassert (index >= 0 && index <= NUMVALUEFLAGS);
2828 gc.counters[index]--;
2829 }
2830 # endif /* DEADCODE */
2831
2832 bool context_showFunction (void)
2833 {
2834 return (gc.showfunction);
2835 }
2836
2837 void
2838 context_setString (flagcode flag, cstring val)
2839 {
2840 int index = flagcode_stringIndex (flag);
2841
2842 llassert (index >= 0 && index <= NUMSTRINGFLAGS);
2843
2844 DPRINTF (("set string: %s", flagcode_unparse (flag)));
2845
2846 switch (flag)
2847 {
2848 case FLG_MESSAGESTREAM:
2849 case FLG_WARNINGSTREAM:
2850 case FLG_ERRORSTREAM:
2851 {
2852 if (cstring_isDefined (val))
2853 {
2854 FILE *fstream;
2855
2856 if (osd_fileExists (val))
2857 {
2858 if (context_getFlag (FLG_STREAMOVERWRITE))
2859 {
2860 llfatalerror (message
2861 ("Output stream file %s would overwrite existing file. "
2862 "Use -streamoverwrite if you want to allow this.",
2863 val));
2864 }
2865 }
2866
2867 fstream = fopen (cstring_toCharsSafe (val), "w");
2868
2869 if (fstream == NULL)
2870 {
2871 llfatalerror (message ("Unable to open output stream file %s for writing",
2872 val));
2873 }
2874
2875 /*
2876 ** This ensures fstream will be closed on exit.
2877 */
2878
2879 fileTable_addStreamFile (gc.ftab, fstream, cstring_copy (val));
2880
2881 switch (flag)
2882 {
2883 case FLG_MESSAGESTREAM:
2884 g_messagestream = fstream;
2885 /*@innerbreak@*/ break;
2886 case FLG_WARNINGSTREAM:
2887 g_warningstream = fstream;
2888 /*@innerbreak@*/ break;
2889 case FLG_ERRORSTREAM:
2890 g_errorstream = fstream;
2891 /*@innerbreak@*/ break;
2892 BADDEFAULT;
2893 }
2894 /*@-statetransfer@*/
2895 } /*@=statetransfer@*/ /* fstream not closed, but will be on exit */
2896 break;
2897 }
2898 case FLG_SYSTEMDIRS:
2899 {
2900 llassert (cstring_isDefined (val));
2901
2902 if (cstring_firstChar (val) == '\"')
2903 {
2904 cstring oval = val;
2905 cstring tval = cstring_copy (cstring_suffix (val, 1));
2906
2907 if (cstring_lastChar (tval) != '\"')
2908 {
2909 int n = size_toInt (cstring_length (tval) - 1);
2910
2911 while (isspace ((int) cstring_getChar (tval, size_fromInt (n))))
2912 {
2913 n--;
2914 }
2915
2916 if (cstring_getChar (tval, size_fromInt (n)) != '\"')
2917 {
2918 llerror_flagWarning
2919 (message ("Setting -systemdirs to string with unmatching quotes: %s", val));
2920 }
2921 else
2922 {
2923 cstring otval = tval;
2924 tval = cstring_prefix (tval, size_fromInt (n));
2925 cstring_free (otval);
2926 }
2927 }
2928
2929 val = cstring_copy (cstring_clip (tval, cstring_length (tval) - 1));
2930 DPRINTF (("val = %s", val));
2931 cstring_free (tval);
2932 cstring_free (oval);
2933 }
2934
2935 break;
2936 }
2937 case FLG_TMPDIR:
2938 {
2939 llassert (cstring_isDefined (val));
2940
2941 if (cstring_length (val) == 0)
2942 {
2943 cstring_free (val);
2944 val = message (".%s", cstring_makeLiteralTemp (CONNECTSTR));
2945 }
2946 else if (cstring_lastChar (val) != CONNECTCHAR)
2947 {
2948 val = cstring_appendChar (val, CONNECTCHAR);
2949 }
2950 else
2951 {
2952 ;
2953 }
2954 break;
2955 }
2956 default:
2957 {
2958 ; /* Okay not handle everything in this switch */
2959 }
2960 /*@-branchstate@*/
2961 } /* evans 2002-03-24: splintme reports a spurious (I think) warning here...need to look into it */
2962 /*@=branchstate@*/
2963
2964 if (cstring_length (val) >= 1
2965 && cstring_firstChar (val) == '\"')
2966 {
2967 llerror_flagWarning (message
2968 ("Setting %s to string beginning with \". You probably "
2969 "don't meant to have the \"'s.",
2970 flagcode_unparse (flag)));
2971 }
2972
2973 gc.strings[index] = val;
2974 }
2975
2976 static /*@exposed@*/ cstring
2977 context_exposeString (flagcode flag)
2978 {
2979 int index = flagcode_stringIndex (flag);
2980
2981 llassert (index >= 0 && index <= NUMSTRINGFLAGS);
2982 return (gc.strings[index]);
2983 }
2984
2985 cstring
2986 context_getString (flagcode flag)
2987 {
2988 return (context_exposeString (flag));
2989 }
2990
2991 void
2992 context_resetErrors (void)
2993 {
2994 gc.numerrors = 0;
2995 }
2996
2997 void
2998 context_recordBug (void)
2999 {
3000 gc.numbugs++;
3001 }
3002
3003 int
3004 context_numBugs (void)
3005 {
3006 return gc.numbugs;
3007 }
3008
3009 void context_initMod (void)
3010 /*@globals undef gc; @*/
3011 {
3012 gc.kind = CX_GLOBAL;
3013
3014 gc.savekind = CX_ERROR;
3015 gc.savecont.glob = FALSE;
3016
3017 gc.instandardlib = FALSE;
3018 gc.numerrors = 0;
3019 gc.numbugs = 0;
3020 gc.neednl = FALSE;
3021 gc.linesprocessed = 0;
3022 gc.speclinesprocessed = 0;
3023 gc.insuppressregion = FALSE;
3024 gc.macroMissingParams = FALSE;
3025 gc.preprocessing = FALSE;
3026 gc.incommandline = FALSE;
3027 gc.mc = macrocache_create ();
3028 gc.nmods = 0;
3029 gc.maxmods = DEFAULTMAXMODS;
3030 gc.moduleaccess = (maccesst *) dmalloc (sizeof (*gc.moduleaccess) * (gc.maxmods));
3031
3032 gc.library = FLG_ANSILIB;
3033
3034 gc.locstack = filelocStack_new ();
3035 gc.modrecs = sRefSetList_undefined;
3036 gc.anyExports = FALSE;
3037
3038 gc.ftab = fileTable_create ();
3039 gc.msgLog = messageLog_new ();
3040 gc.inimport = FALSE;
3041 gc.inDerivedFile = FALSE;
3042 gc.inheader = FALSE;
3043 gc.markers = flagMarkerList_new ();
3044 gc.cont.glob = TRUE;
3045 gc.showfunction = FALSE;
3046 gc.msgAnnote = cstring_undefined;
3047 gc.aliasAnnote = sRef_undefined;
3048 gc.aliasAnnoteAls = sRef_undefined;
3049 gc.boolType = ctype_bool;
3050 gc.mods = sRefSet_new ();
3051
3052 gc.saveloc = fileloc_undefined;
3053
3054 gc.inmacrocache = FALSE;
3055 gc.inclause = NOCLAUSE;
3056 gc.clauses = clauseStack_new ();
3057 gc.globs = globSet_new ();
3058 gc.nacct = typeIdSet_emptySet ();
3059 gc.acct = typeIdSet_emptySet ();
3060 gc.facct = typeIdSet_emptySet ();
3061 gc.savedFlags = FALSE;
3062 gc.pushloc = fileloc_undefined;
3063 gc.protectVars = FALSE;
3064 gc.justpopped = FALSE;
3065 gc.isNullGuarded = NO;
3066 gc.globs_used = globSet_undefined;
3067
3068 allFlagCodes (code)
3069 {
3070 gc.setGlobally[code] = FALSE;
3071 gc.setLocally[code] = FALSE;
3072 }
3073 end_allFlagCodes ;
3074
3075 usymtab_initMod ();
3076 context_resetAllFlags ();
3077
3078 assertSet (gc.flags); /* Can't use global in defines */
3079 assertSet (gc.saveflags);
3080 assertSet (gc.values);
3081 assertSet (gc.strings);
3082
3083 conext_resetAllCounters ();
3084 assertSet (gc.counters);
3085
3086 context_setMode (DEFAULT_MODE);
3087
3088 gc.stateTable = metaStateTable_create ();
3089 gc.annotTable = annotationTable_create ();
3090
3091 gc.inFunctionHeader = FALSE;
3092
3093 DPRINTF (("Annotations: \n%s",
3094 cstring_toCharsSafe (annotationTable_unparse (gc.annotTable))));
3095 DPRINTF (("State: \n%s",
3096 cstring_toCharsSafe (metaStateTable_unparse (gc.stateTable))));
3097
3098 }
3099
3100 ctype
3101 context_typeofZero (void)
3102 {
3103 ctype ct = ctype_int;
3104
3105 if (context_getFlag (FLG_ZEROPTR))
3106 {
3107 ct = ctype_makeConj (ct, ctype_voidPointer);
3108 }
3109
3110 if (context_getFlag (FLG_ZEROBOOL)) {
3111 ct = ctype_makeConj (ct, ctype_bool);
3112 }
3113
3114 return ct;
3115 }
3116
3117 ctype
3118 context_typeofOne (void)
3119 {
3120 ctype ct = ctype_int;
3121
3122 /* 1 is on longer a bool (was before 2.4)
3123 if (!context_getFlag (FLG_ABSTRACTBOOL))
3124 {
3125 ct = ctype_makeConj (ct, ctype_bool);
3126 }
3127 */
3128
3129 return (ct);
3130 }
3131
3132 /*@only@*/ cstring
3133 context_unparse (void)
3134 {
3135 cstring s;
3136
3137 switch (gc.kind)
3138 {
3139 case CX_LCL:
3140 s = message ("LCL File: %q", fileloc_unparse (g_currentloc));
3141 break;
3142 case CX_LCLLIB:
3143 s = message ("LCL Lib File: %q", fileloc_unparse (g_currentloc));
3144 break;
3145 case CX_GLOBAL:
3146 s = message ("Global Context:%q", fileloc_unparse (g_currentloc));
3147 break;
3148 case CX_INNER:
3149 s = message ("Inner Context [%d] : %q",
3150 gc.cont.cdepth,
3151 fileloc_unparse (g_currentloc));
3152 break;
3153 case CX_FUNCTION:
3154 s = message ("Function %q :%q \n\taccess %q\n\tmodifies %q",
3155 uentry_unparse (gc.cont.fcn),
3156 fileloc_unparse (g_currentloc),
3157 typeIdSet_unparse (gc.acct),
3158 sRefSet_unparse (gc.mods));
3159 break;
3160 case CX_MACROFCN:
3161 s = message ("Function Macro %q", uentry_unparse (gc.cont.fcn));
3162 break;
3163 case CX_UNKNOWNMACRO:
3164 s = message ("Forward Specified Macro %q", uentry_unparse (gc.cont.fcn));
3165 break;
3166 case CX_MACROCONST:
3167 s = message ("Constant Macro %q", uentry_unparse (gc.cont.fcn));
3168 break;
3169 case CX_ITERDEF:
3170 s = message ("Iter definition %q", uentry_unparse (gc.cont.fcn));
3171 break;
3172 case CX_ITEREND:
3173 s = message ("Iter end %q", uentry_unparse (gc.cont.fcn));
3174 break;
3175 case CX_FCNDECLARATION:
3176 s = message ("Function declaration %q", uentry_unparse (gc.cont.fcn));
3177 break;
3178 default:
3179 s = message ("Un-unparseable context: %d", (int) gc.kind);
3180 break;
3181 }
3182
3183 s = message ("%q\naccess: %q", s, context_unparseAccess ());
3184 return (s);
3185 }
3186
3187 extern ctype
3188 context_currentFunctionType (void)
3189 {
3190 if (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN)
3191 {
3192 return (uentry_getType (gc.cont.fcn));
3193 }
3194 else if (gc.kind == CX_INNER)
3195 {
3196 llcontbuglit ("context_currentFunctionType: inner context");
3197 do { context_exitInnerPlain (); } while (gc.kind == CX_INNER);
3198 return (context_currentFunctionType ());
3199 }
3200 else
3201 {
3202 llcontbuglit ("context_currentFunctionType: not in function");
3203 return (ctype_undefined);
3204 }
3205 }
3206
3207 void
3208 context_enterInnerContext (void)
3209 {
3210 if (context_getFlag (FLG_GRAMMAR))
3211 {
3212 lldiagmsg (message ("Enter inner context: %q", context_unparse ()));
3213 }
3214
3215 if (gc.kind == CX_GLOBAL)
3216 {
3217 gc.kind = CX_INNER;
3218 gc.cont.cdepth = 1;
3219 }
3220 else if (gc.kind == CX_INNER)
3221 {
3222 gc.cont.cdepth++;
3223 }
3224 else
3225 {
3226 ;
3227 }
3228
3229 usymtab_enterScope ();
3230 pushClause (NOCLAUSE);
3231 }
3232
3233 void
3234 context_exitInnerPlain (void) /*@modifies gc;@*/
3235 {
3236 context_exitInner (exprNode_undefined);
3237 }
3238
3239 void
3240 context_exitInner (exprNode exp)
3241 {
3242 if (context_getFlag (FLG_GRAMMAR))
3243 {
3244 lldiagmsg (message ("Enter inner context: %q", context_unparse ()));
3245 }
3246
3247 llassertprint (gc.inclause == NOCLAUSE || gc.inclause == CASECLAUSE,
3248 ("inclause = %s", clause_nameTaken (gc.inclause)));
3249
3250 clauseStack_removeFirst (gc.clauses, NOCLAUSE);
3251 gc.inclause = topClause (gc.clauses);
3252
3253 if (gc.kind == CX_INNER)
3254 {
3255 if (--gc.cont.cdepth == 0)
3256 {
3257 gc.kind = CX_GLOBAL;
3258 gc.cont.glob = TRUE;
3259 }
3260 }
3261 else
3262 {
3263 if (gc.kind == CX_GLOBAL)
3264 {
3265 llcontbuglit ("Attempt to exit global context");
3266 return;
3267 }
3268 }
3269
3270 usymtab_exitScope (exp);
3271 }
3272
3273
3274 void
3275 context_enterStructInnerContext (void)
3276 {
3277 if (context_getFlag (FLG_GRAMMAR))
3278 {
3279 lldiagmsg (message ("Enter struct inner context: %q", context_unparse ()));
3280 }
3281
3282 if (gc.kind == CX_GLOBAL)
3283 {
3284 gc.kind = CX_INNER;
3285 gc.cont.cdepth = 1;
3286 }
3287 else if (gc.kind == CX_INNER)
3288 {
3289 gc.cont.cdepth++;
3290 }
3291 else
3292 {
3293 ;
3294 }
3295
3296 usymtab_enterScope ();
3297
3298 if (context_getFlag (FLG_GRAMMAR))
3299 {
3300 lldiagmsg (message ("Enter struct inner context: %q", context_unparse ()));
3301 }
3302 }
3303
3304 void
3305 context_exitStructInnerContext (void)
3306 {
3307 if (context_getFlag (FLG_GRAMMAR))
3308 {
3309 lldiagmsg (message ("Exit struct inner context: %q [%d]", context_unparse (), gc.cont.cdepth));
3310 }
3311
3312 if (gc.kind == CX_INNER)
3313 {
3314 if (gc.cont.cdepth <= 0)
3315 {
3316 llcontbuglit ("Attempt to exit inner context with no depth");
3317 gc.kind = CX_GLOBAL;
3318 gc.cont.glob = TRUE;
3319 gc.cont.cdepth = 0;
3320 }
3321 else {
3322 gc.cont.cdepth--;
3323
3324 if (gc.cont.cdepth == 0)
3325 {
3326 gc.kind = CX_GLOBAL;
3327 gc.cont.glob = TRUE;
3328 }
3329 }
3330 }
3331 else
3332 {
3333 if (gc.kind == CX_GLOBAL)
3334 {
3335 llcontbuglit ("Attempt to exit global context");
3336 return;
3337 }
3338 }
3339
3340 usymtab_exitScope (exprNode_undefined);
3341
3342 if (context_getFlag (FLG_GRAMMAR))
3343 {
3344 lldiagmsg (message ("After exit struct inner context: %q [%d]", context_unparse (), gc.cont.cdepth));
3345 }
3346 }
3347
3348 void
3349 context_exitInnerSafe (void)
3350 {
3351 if (context_getFlag (FLG_GRAMMAR))
3352 {
3353 lldiagmsg (message ("Exit inner safe: %q", context_unparse ()));
3354 }
3355
3356 if (gc.kind == CX_INNER)
3357 {
3358 if (--gc.cont.cdepth <= 0)
3359 {
3360 gc.cont.cdepth = 0;
3361 }
3362 }
3363 else if (gc.kind == CX_GLOBAL)
3364 {
3365 llcontbuglit ("Attempt to exit global context");
3366 return;
3367 }
3368 else
3369 {
3370 if (usymtab_inDeepScope ())
3371 {
3372 usymtab_exitScope (exprNode_undefined);
3373 }
3374 }
3375 }
3376
3377 static
3378 void setModuleAccess (void)
3379 {
3380 gc.facct = typeIdSet_emptySet ();
3381
3382 if (fileId_isValid (currentFile ()))
3383 {
3384 cstring baseName = fileloc_getBase (g_currentloc);
3385
3386 if (context_getFlag (FLG_ACCESSFILE))
3387 {
3388 if (usymtab_existsType (baseName))
3389 {
3390 gc.facct = typeIdSet_insert (gc.facct,
3391 usymtab_getTypeId (baseName));
3392 }
3393 else
3394 {
3395 ;
3396 }
3397 }
3398
3399 if (context_getFlag (FLG_ACCESSMODULE))
3400 {
3401 int i;
3402
3403 for (i = 0; i < gc.nmods; i++)
3404 {
3405 if (cstring_equal (baseName, gc.moduleaccess[i].file))
3406 {
3407 gc.facct = typeIdSet_union (gc.facct, gc.moduleaccess[i].daccess);
3408
3409 break;
3410 }
3411 }
3412 }
3413
3414 gc.acct = gc.facct;
3415 gc.inheader = fileId_isHeader (currentFile ());
3416 }
3417 else
3418 {
3419 llcontbuglit ("Current file not defined\n");
3420 gc.facct = typeIdSet_emptySet ();
3421 gc.acct = gc.facct;
3422 gc.inheader = FALSE;
3423 }
3424
3425 /* 17 Jan 1995: forgot to clear nacct */
3426
3427 gc.nacct = typeIdSet_emptySet ();
3428 }
3429
3430 static void
3431 context_enterFileAux (void)
3432 {
3433 setModuleAccess ();
3434 }
3435
3436 void
3437 context_enterFile (void)
3438 {
3439 context_enterFileAux ();
3440 usymtab_enterFile ();
3441 }
3442
3443 void
3444 context_enterMacroFile (void)
3445 {
3446 context_enterFileAux ();
3447 }
3448
3449 bool
3450 context_inFunction (void)
3451 {
3452 kcontext ck = gc.kind;
3453
3454 return ((ck == CX_FUNCTION) || (ck == CX_MACROFCN) || (ck == CX_INNER));
3455 }
3456
3457 bool
3458 context_inFunctionLike (void)
3459 {
3460 return (gc.kind == CX_FUNCTION || gc.kind == CX_MACROFCN
3461 || gc.kind == CX_FCNDECLARATION
3462 || gc.kind == CX_UNKNOWNMACRO || gc.kind == CX_ITERDEF);
3463 }
3464
3465 bool
3466 context_inRealFunction (void)
3467 {
3468 kcontext ck = gc.kind;
3469
3470 return ((ck == CX_FUNCTION) || (ck == CX_MACROFCN));
3471 }
3472
3473 void
3474 context_processAllMacros (void)
3475 {
3476 usymtab_enterFile ();
3477
3478 gc.inmacrocache = TRUE;
3479 macrocache_processUndefinedElements (gc.mc);
3480 cleanupMessages ();
3481 usymtab_exitFile ();
3482
3483 gc.inmacrocache = FALSE;
3484 macrocache_finalize ();
3485 }
3486
3487 /*
3488 ** this happens once at the end of each C file
3489 **
3490 ** check each Macro that was defined in current file.c or current file.h
3491 **
3492 */
3493
3494 static void
3495 context_processMacros (void)
3496 {
3497 if (fileId_isValid (currentFile ()))
3498 {
3499 fileloc lastfl;
3500 cstring cbase = fileLib_removePathFree (fileLib_removeAnyExtension (fileTable_fileName (currentFile ())));
3501
3502 gc.inmacrocache = TRUE;
3503
3504 DPRINTF (("Processing macros: %s", cbase));
3505 lastfl = macrocache_processFileElements (gc.mc, cbase);
3506 DPRINTF (("Processing macros: %s", fileloc_unparse (lastfl)));
3507
3508 cstring_free (cbase);
3509
3510 if (fileloc_isDefined (lastfl))
3511 {
3512 g_currentloc = fileloc_update (g_currentloc, lastfl);
3513 cleanupMessages ();
3514 }
3515
3516 gc.inmacrocache = FALSE;
3517 }
3518 }
3519
3520 bool
3521 context_processingMacros (void)
3522 {
3523 return (gc.inmacrocache);
3524 }
3525
3526 void
3527 context_exitCFile (void)
3528 {
3529 if (gc.kind != CX_GLOBAL)
3530 {
3531 llfatalerrorLoc
3532 (cstring_makeLiteral ("File ended outside global scope"));
3533 }
3534
3535 if (gc.insuppressregion)
3536 {
3537 /* gack...don't reverse the order of these lines! ;-> */
3538 gc.insuppressregion = FALSE;
3539 llerrorlit (FLG_SYNTAX,
3540 "File ended in ignore errors region, "
3541 "possible missing /*@end*/");
3542 }
3543
3544 /* fix up parse errors */
3545
3546 while (!usymtab_inFileScope ())
3547 {
3548 usymtab_quietExitScope (g_currentloc);
3549 }
3550
3551 /*
3552 ** Clear the file-specific modifies information.
3553 */
3554
3555 sRefSetList_elements (gc.modrecs, mods)
3556 {
3557 sRefSet_clearStatics (mods);
3558 } end_sRefSetList_elements ;
3559
3560 sRefSetList_clear (gc.modrecs);
3561
3562 context_processMacros ();
3563 cleanupMessages ();
3564
3565 usymtab_exitFile ();
3566
3567 gc.inDerivedFile = FALSE;
3568 filelocStack_clear (gc.locstack);
3569
3570 gc.nacct = typeIdSet_emptySet (); /* empty noaccess */
3571
3572 gc.cont.glob = TRUE;
3573
3574 if (gc.savedFlags)
3575 {
3576 context_restoreFlagSettings ();
3577 gc.savedFlags = FALSE;
3578 }
3579
3580 /*
3581 DPRINTF (("After exiting file: "));
3582 usymtab_printAll ();
3583 */
3584 }
3585
3586 void
3587 context_exitMacroCache (void)
3588 {
3589 if (gc.kind != CX_GLOBAL)
3590 {
3591 if (context_inMacro ())
3592 /* this is okay, file could end without newline in macro */
3593 {
3594 DPRINTF (("Still in macro: %s",
3595 context_unparse ()));
3596 context_exitFunction ();
3597 }
3598 else
3599 {
3600 llcontbug (message ("context_exitMacroCache: outside global scope: %q",
3601 context_unparse ()));
3602 gc.kind = CX_GLOBAL;
3603 }
3604 }
3605
3606 /*
3607 ** no longer valid here
3608 ** if (gc.insuppressregion)
3609 ** {
3610 ** gc.insuppressregion = FALSE;
3611 ** llerror ("File ended in ignore errors region, possible missing @");
3612 ** }
3613 */
3614
3615 gc.cont.glob = TRUE;
3616 }
3617
3618 void
3619 context_saveLocation (void)
3620 {
3621 /* was llassert (fileloc_isUndefined (gc.saveloc)) */
3622 fileloc_free (gc.saveloc);
3623 gc.saveloc = fileloc_copy (g_currentloc);
3624 }
3625
3626 fileloc
3627 context_getSaveLocation (void)
3628 {
3629 fileloc fl = gc.saveloc;
3630 gc.saveloc = fileloc_undefined;
3631 return fl;
3632 }
3633
3634 /*@observer@*/ cstring
3635 context_inFunctionName (void)
3636 {
3637 if (gc.kind == CX_FUNCTION
3638 || gc.kind == CX_MACROFCN || gc.kind == CX_UNKNOWNMACRO
3639 || gc.kind == CX_MACROCONST
3640 || gc.kind == CX_ITERDEF || gc.kind == CX_ITEREND)
3641 {
3642 return (uentry_rawName (gc.cont.fcn));
3643 }
3644 else
3645 {
3646 llcontbuglit ("context_inFunctionName: not in function");
3647 return (cstring_undefined);
3648 }
3649 }
3650
3651 void
3652 context_userSetFlag (flagcode f, bool b)
3653 {
3654 DPRINTF (("set flag: %s / %s",
3655 flagcode_unparse (f),
3656 bool_unparse (context_getFlag (f))));
3657
3658 if (f == FLG_NEVERINCLUDE && b)
3659 {
3660 if (gc.flags[FLG_EXPORTHEADER])
3661 {
3662 llerror_flagWarning
3663 (cstring_makeLiteral
3664 ("Setting +neverinclude after +exportheader. "
3665 "Turning off exportheader, since headers are not checked "
3666 "when +neverinclude is used."));
3667
3668 gc.flags[FLG_EXPORTHEADER] = FALSE;
3669 }
3670 }
3671 else
3672 {
3673 if (f == FLG_EXPORTHEADER && b)
3674 {
3675 if (gc.flags[FLG_NEVERINCLUDE])
3676 {
3677 llerror_flagWarning
3678 (cstring_makeLiteral
3679 ("Setting +exportheader after +neverinclude. "
3680 "Not setting exportheader, since headers are not checked "
3681 "when +neverinclude is used."));
3682 gc.flags[FLG_EXPORTHEADER] = FALSE;
3683 return;
3684 }
3685 }
3686 }
3687
3688 if (context_getFlag (FLG_WARNFLAGS) && f != FLG_NOF && f != FLG_OPTF)
3689 {
3690 bool lastsetting = context_getFlag (f);
3691
3692 if (bool_equal (lastsetting, b)
3693 && !flagcode_isSpecialFlag (f)
3694 && !flagcode_isIdemFlag (f)
3695 && !flagcode_hasArgument (f))
3696 {
3697 llerror_flagWarning
3698 (message ("Setting %s%s redundant with current value",
3699 cstring_makeLiteralTemp (b ? "+" : "-"),
3700 flagcode_unparse (f)));
3701 }
3702 }
3703
3704 if (flagcode_isWarnUseFlag (f) && b)
3705 {
3706 if (!context_getFlag (FLG_WARNUSE))
3707 {
3708 llerror_flagWarning
3709 (message ("Flag +%s is canceled by -warnuse",
3710 flagcode_unparse (f)));
3711 }
3712 }
3713
3714
3715 if (flagcode_isLibraryFlag (f))
3716 {
3717 if (gc.library != FLG_ANSILIB
3718 && gc.library != f)
3719 {
3720 llerror_flagWarning
3721 (message ("Selecting library %s after library %s was "
3722 "selected (only one library may be used)",
3723 flagcode_unparse (f),
3724 flagcode_unparse (gc.library)));
3725 }
3726
3727 if (f == FLG_UNIXLIB)
3728 {
3729 if (context_getFlag (FLG_WARNUNIXLIB))
3730 {
3731 llerror_flagWarning
3732 (cstring_makeLiteral
3733 ("Selecting unix library. Unix library is "
3734 "based on the Single Unix Specification, Version 2. Not all "
3735 "Unix implementations are consistend with this specification. "
3736 "Use -warnunixlib to suppress this message."));
3737 }
3738 }
3739
3740 gc.library = f;
3741 }
3742
3743 if (flagcode_isNameChecksFlag (f) && b && !context_maybeSet (FLG_NAMECHECKS))
3744 {
3745 llerror_flagWarning
3746 (message
3747 ("Setting +%s will not produce warnings with -namechecks. "
3748 "Must set +namechecks also.",
3749 flagcode_unparse (f)));
3750 }
3751
3752 gc.setGlobally[f] = TRUE;
3753 context_setFlag (f, b, g_currentloc);
3754 }
3755
3756 void
3757 context_fileSetFlag (flagcode f, ynm set, fileloc loc)
3758 {
3759 if (!gc.savedFlags)
3760 {
3761 context_saveFlagSettings ();
3762 }
3763
3764 if (ynm_isOff (set))
3765 {
3766 context_setFlagAux (f, FALSE, TRUE, FALSE, loc);
3767 }
3768 else if (ynm_isOn (set))
3769 {
3770 context_setFlagAux (f, TRUE, TRUE, FALSE, loc);
3771 gc.setLocally[f] = TRUE;
3772 }
3773 else
3774 {
3775 context_restoreFlag (f, loc);
3776 }
3777 }
3778
3779 static void
3780 context_restoreFlag (flagcode f, fileloc loc)
3781 {
3782 if (!gc.savedFlags)
3783 {
3784 voptgenerror
3785 (FLG_SYNTAX,
3786 message ("Attempt to restore flag %s when no file scope flags "
3787 "have been set.",
3788 flagcode_unparse (f)),
3789 loc);
3790 }
3791 else
3792 {
3793 context_addFlagMarker (f, MAYBE, loc);
3794 context_setFlagAux (f, gc.saveflags[f], FALSE, TRUE, loc);
3795 }
3796
3797 }
3798
3799 static void
3800 context_setFlag (flagcode f, bool b, fileloc loc)
3801 {
3802 context_setFlagAux (f, b, FALSE, FALSE, loc);
3803 }
3804
3805 void
3806 context_setFlagTemp (flagcode f, bool b)
3807 {
3808 DPRINTF (("Set flag temp: %s / %s", flagcode_unparse (f), bool_unparse (b)));
3809 gc.flags[f] = b;
3810 }
3811
3812 /*@notfunction@*/
3813 # define DOSET(ff,b) \
3814 do { if (inFile) { gc.setLocally[ff] = TRUE; \
3815 context_addFlagMarker (ff, ynm_fromBool (b), loc); } \
3816 DPRINTF (("set flag: %s / %s", flagcode_unparse (ff), bool_unparse (b))); \
3817 gc.flags[ff] = b; } while (FALSE)
3818
3819 static void
3820 context_setFlagAux (flagcode f, bool b, bool inFile,
3821 /*@unused@*/ bool isRestore, fileloc loc)
3822 {
3823 DPRINTF (("Set flag: %s / %s", flagcode_unparse (f), bool_unparse (b)));
3824
3825 /*
3826 ** Removed test for special flags.
3827 */
3828
3829 if (flagcode_isIdemFlag (f))
3830 {
3831 DOSET (f, TRUE);
3832 }
3833 else
3834 {
3835 DOSET (f, b);
3836 }
3837
3838 if (f >= FLG_ITS4MOSTRISKY && f <= FLG_ITS4LOWRISK)
3839 {
3840 if (b) /* Turing higher level on, turns on all lower levels */
3841 {
3842 switch (f)
3843 {
3844 case FLG_ITS4MOSTRISKY:
3845 DOSET (FLG_ITS4VERYRISKY, b);
3846 /*@fallthrough@*/
3847 case FLG_ITS4VERYRISKY:
3848 DOSET (FLG_ITS4RISKY, b);
3849 /*@fallthrough@*/
3850 case FLG_ITS4RISKY:
3851 DOSET (FLG_ITS4MODERATERISK, b);
3852 /*@fallthrough@*/
3853 case FLG_ITS4MODERATERISK:
3854 DOSET (FLG_ITS4LOWRISK, b);
3855 /*@fallthrough@*/
3856 case FLG_ITS4LOWRISK:
3857 break;
3858 BADDEFAULT;
3859 }
3860 }
3861 else /* Turning level off, turns off all higher levels */
3862 {
3863 switch (f)
3864 {
3865 case FLG_ITS4LOWRISK:
3866 DOSET (FLG_ITS4MODERATERISK, b);
3867 /*@fallthrough@*/
3868 case FLG_ITS4MODERATERISK:
3869 DOSET (FLG_ITS4RISKY, b);
3870 /*@fallthrough@*/
3871 case FLG_ITS4RISKY:
3872 DOSET (FLG_ITS4VERYRISKY, b);
3873 /*@fallthrough@*/
3874 case FLG_ITS4VERYRISKY:
3875 DOSET (FLG_ITS4MOSTRISKY, b);
3876 /*@fallthrough@*/
3877 case FLG_ITS4MOSTRISKY:
3878 break;
3879 BADDEFAULT;
3880 }
3881 }
3882 }
3883
3884 switch (f)
3885 {
3886 case FLG_MESSAGESTREAMSTDOUT:
3887 g_messagestream = stdout;
3888 break;
3889 case FLG_MESSAGESTREAMSTDERR:
3890 g_messagestream = stderr;
3891 break;
3892 case FLG_WARNINGSTREAMSTDOUT:
3893 g_warningstream = stdout;
3894 break;
3895 case FLG_WARNINGSTREAMSTDERR:
3896 g_warningstream = stderr;
3897 break;
3898 case FLG_ERRORSTREAMSTDOUT:
3899 g_errorstream = stdout;
3900 break;
3901 case FLG_ERRORSTREAMSTDERR:
3902 g_errorstream = stderr;
3903 break;
3904 case FLG_ALLEMPTY:
3905 DOSET (FLG_ALLEMPTY, b);
3906 DOSET (FLG_IFEMPTY, b);
3907 DOSET (FLG_WHILEEMPTY, b);
3908 DOSET (FLG_FOREMPTY, b);
3909 break;
3910 case FLG_PREDBOOL:
3911 DOSET (FLG_PREDBOOL, b);
3912 DOSET (FLG_PREDBOOLINT, b);
3913 DOSET (FLG_PREDBOOLPTR, b);
3914 DOSET (FLG_PREDBOOLOTHERS, b);
3915 break;
3916 case FLG_GLOBALIAS:
3917 DOSET (FLG_CHECKSTRICTGLOBALIAS, b);
3918 DOSET (FLG_CHECKEDGLOBALIAS, b);
3919 DOSET (FLG_CHECKMODGLOBALIAS, b);
3920 DOSET (FLG_UNCHECKEDGLOBALIAS, b);
3921 break;
3922 case FLG_ALLBLOCK:
3923 DOSET (FLG_ALLBLOCK, b);
3924 DOSET (FLG_IFBLOCK, b);
3925 DOSET (FLG_WHILEBLOCK, b);
3926 DOSET (FLG_FORBLOCK, b);
3927 break;
3928 case FLG_GRAMMAR:
3929 if (b)
3930 {
3931 c_debug = 1;
3932 mtdebug = 1;
3933 }
3934 else
3935 {
3936 c_debug = 0;
3937 mtdebug = 0;
3938 }
3939
3940 DOSET (FLG_GRAMMAR, b);
3941 break;
3942 case FLG_CODEIMPONLY:
3943 DOSET (FLG_CODEIMPONLY, b);
3944 DOSET (FLG_GLOBIMPONLY, b);
3945 DOSET (FLG_RETIMPONLY, b);
3946 DOSET (FLG_STRUCTIMPONLY, b);
3947 break;
3948 case FLG_SPECALLIMPONLY:
3949 DOSET (FLG_SPECALLIMPONLY, b);
3950 DOSET (FLG_SPECGLOBIMPONLY, b);
3951 DOSET (FLG_SPECRETIMPONLY, b);
3952 DOSET (FLG_SPECSTRUCTIMPONLY, b);
3953 break;
3954 case FLG_ALLIMPONLY:
3955 DOSET (FLG_ALLIMPONLY, b);
3956 DOSET (FLG_GLOBIMPONLY, b);
3957 DOSET (FLG_RETIMPONLY, b);
3958 DOSET (FLG_STRUCTIMPONLY, b);
3959 DOSET (FLG_SPECGLOBIMPONLY, b);
3960 DOSET (FLG_SPECRETIMPONLY, b);
3961 DOSET (FLG_SPECSTRUCTIMPONLY, b);
3962 break;
3963 case FLG_ANSI89LIMITS:
3964 DOSET (FLG_ANSI89LIMITS, b);
3965 DOSET (FLG_CONTROLNESTDEPTH, b);
3966 DOSET (FLG_STRINGLITERALLEN, b);
3967 DOSET (FLG_INCLUDENEST, b);
3968 DOSET (FLG_NUMSTRUCTFIELDS, b);
3969 DOSET (FLG_NUMENUMMEMBERS, b);
3970
3971 if (b)
3972 {
3973 context_setValue (FLG_CONTROLNESTDEPTH, ANSI89_CONTROLNESTDEPTH);
3974 context_setValue (FLG_STRINGLITERALLEN, ANSI89_STRINGLITERALLEN);
3975 context_setValue (FLG_INCLUDENEST, ANSI89_INCLUDENEST);
3976 context_setValue (FLG_NUMSTRUCTFIELDS, ANSI89_NUMSTRUCTFIELDS);
3977 context_setValue (FLG_NUMENUMMEMBERS, ANSI89_NUMENUMMEMBERS);
3978 context_setValue (FLG_EXTERNALNAMELEN, ANSI89_EXTERNALNAMELEN);
3979 context_setValue (FLG_INTERNALNAMELEN, ANSI89_INTERNALNAMELEN);
3980 }
3981 break;
3982 case FLG_ISO99LIMITS:
3983 DOSET (FLG_ISO99LIMITS, b);
3984 DOSET (FLG_CONTROLNESTDEPTH, b);
3985 DOSET (FLG_STRINGLITERALLEN, b);
3986 DOSET (FLG_INCLUDENEST, b);
3987 DOSET (FLG_NUMSTRUCTFIELDS, b);
3988 DOSET (FLG_NUMENUMMEMBERS, b);
3989
3990 if (b)
3991 {
3992 context_setValue (FLG_CONTROLNESTDEPTH, ISO99_CONTROLNESTDEPTH);
3993 context_setValue (FLG_STRINGLITERALLEN, ISO99_STRINGLITERALLEN);
3994 context_setValue (FLG_INCLUDENEST, ISO99_INCLUDENEST);
3995 context_setValue (FLG_NUMSTRUCTFIELDS, ISO99_NUMSTRUCTFIELDS);
3996 context_setValue (FLG_NUMENUMMEMBERS, ISO99_NUMENUMMEMBERS);
3997 context_setValue (FLG_EXTERNALNAMELEN, ISO99_EXTERNALNAMELEN);
3998 context_setValue (FLG_INTERNALNAMELEN, ISO99_INTERNALNAMELEN);
3999 }
4000 break;
4001 case FLG_EXTERNALNAMELEN:
4002 DOSET (FLG_DISTINCTEXTERNALNAMES, TRUE);
4003 DOSET (FLG_EXTERNALNAMELEN, TRUE);
4004 break;
4005 case FLG_INTERNALNAMELEN:
4006 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
4007 DOSET (FLG_INTERNALNAMELEN, TRUE);
4008 break;
4009 case FLG_EXTERNALNAMECASEINSENSITIVE:
4010 DOSET (FLG_EXTERNALNAMECASEINSENSITIVE, b);
4011
4012 if (b && !gc.flags[FLG_DISTINCTEXTERNALNAMES])
4013 {
4014 DOSET (FLG_DISTINCTEXTERNALNAMES, TRUE);
4015 context_setValue (FLG_EXTERNALNAMELEN, 0);
4016 }
4017 break;
4018 case FLG_INTERNALNAMECASEINSENSITIVE:
4019 DOSET (FLG_INTERNALNAMECASEINSENSITIVE, b);
4020
4021 if (b && !gc.flags[FLG_DISTINCTINTERNALNAMES])
4022 {
4023 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
4024 context_setValue (FLG_INTERNALNAMELEN, 0);
4025 }
4026 break;
4027 case FLG_INTERNALNAMELOOKALIKE:
4028 DOSET (FLG_INTERNALNAMELOOKALIKE, b);
4029
4030 if (b && !gc.flags[FLG_DISTINCTINTERNALNAMES])
4031 {
4032 DOSET (FLG_DISTINCTINTERNALNAMES, TRUE);
4033 context_setValue (FLG_INTERNALNAMELEN, 0);
4034 }
4035 break;
4036 case FLG_MODUNSPEC:
4037 DOSET (FLG_MODNOMODS, b);
4038 DOSET (FLG_MODGLOBSUNSPEC, b);
4039 DOSET (FLG_MODSTRICTGLOBSUNSPEC, b);
4040 break;
4041 case FLG_EXPORTANY:
4042 DOSET (FLG_EXPORTVAR, b);
4043 DOSET (FLG_EXPORTFCN, b);
4044 DOSET (FLG_EXPORTTYPE, b);
4045 DOSET (FLG_EXPORTMACRO, b);
4046 DOSET (FLG_EXPORTCONST, b);
4047 gc.anyExports = TRUE;
4048 break;
4049 case FLG_REPEXPOSE:
4050 DOSET (FLG_RETEXPOSE, b);
4051 DOSET (FLG_ASSIGNEXPOSE, b);
4052 DOSET (FLG_CASTEXPOSE, b);
4053 break;
4054 case FLG_RETVAL:
4055 DOSET (FLG_RETVALBOOL, b);
4056 DOSET (FLG_RETVALINT, b);
4057 DOSET (FLG_RETVALOTHER, b);
4058 break;
4059 case FLG_PARTIAL:
4060 if (b)
4061 {
4062 DOSET (FLG_EXPORTLOCAL, FALSE);
4063 DOSET (FLG_DECLUNDEF, FALSE);
4064 DOSET (FLG_SPECUNDEF, FALSE);
4065 DOSET (FLG_TOPUNUSED, FALSE);
4066 }
4067 break;
4068 case FLG_DEEPBREAK:
4069 DOSET (FLG_LOOPLOOPBREAK, b);
4070 DOSET (FLG_LOOPSWITCHBREAK, b);
4071 DOSET (FLG_SWITCHLOOPBREAK, b);
4072 DOSET (FLG_SWITCHSWITCHBREAK, b);
4073 DOSET (FLG_LOOPLOOPCONTINUE, b);
4074 DOSET (FLG_DEEPBREAK, b);
4075 break;
4076 case FLG_LOOPEXEC:
4077 DOSET (FLG_FORLOOPEXEC, b);
4078 DOSET (FLG_WHILELOOPEXEC, b);
4079 DOSET (FLG_ITERLOOPEXEC, b);
4080 break;
4081 case FLG_ACCESSALL:
4082 DOSET (FLG_ACCESSMODULE, b);
4083 DOSET (FLG_ACCESSFILE, b);
4084 DOSET (FLG_ACCESSCZECH, b);
4085 break;
4086 case FLG_ALLMACROS:
4087 DOSET (FLG_ALLMACROS, b);
4088 DOSET (FLG_FCNMACROS, b);
4089 DOSET (FLG_CONSTMACROS, b);
4090 break;
4091 case FLG_BOUNDS:
4092 DOSET (FLG_BOUNDSREAD, b);
4093 DOSET (FLG_BOUNDSWRITE, b);
4094 DOSET (FLG_LIKELYBOUNDSREAD, b);
4095 DOSET (FLG_LIKELYBOUNDSWRITE, b);
4096 break;
4097 case FLG_BOUNDSREAD:
4098 DOSET (FLG_LIKELYBOUNDSREAD, b);
4099 break;
4100 case FLG_BOUNDSWRITE:
4101 DOSET (FLG_LIKELYBOUNDSWRITE, b);
4102 break;
4103 case FLG_LIKELYBOUNDS:
4104 DOSET (FLG_LIKELYBOUNDSREAD, b);
4105 DOSET (FLG_LIKELYBOUNDSWRITE, b);
4106 break;
4107
4108 case FLG_CZECH:
4109 if (b) { DOSET (FLG_ACCESSCZECH, b); }
4110 DOSET (FLG_CZECHFUNCTIONS, b);
4111 DOSET (FLG_CZECHVARS, b);
4112 DOSET (FLG_CZECHCONSTANTS, b);
4113 DOSET (FLG_CZECHTYPES, b);
4114 break;
4115 case FLG_SLOVAK:
4116 if (b) { DOSET (FLG_ACCESSSLOVAK, b); }
4117 DOSET (FLG_SLOVAKFUNCTIONS, b);
4118 DOSET (FLG_SLOVAKVARS, b);
4119 DOSET (FLG_SLOVAKCONSTANTS, b);
4120 DOSET (FLG_SLOVAKTYPES, b);
4121 break;
4122 case FLG_CZECHOSLOVAK:
4123 if (b) { DOSET (FLG_ACCESSCZECHOSLOVAK, b); }
4124 DOSET (FLG_CZECHOSLOVAKFUNCTIONS, b);
4125 DOSET (FLG_CZECHOSLOVAKVARS, b);
4126 DOSET (FLG_CZECHOSLOVAKCONSTANTS, b);
4127 DOSET (FLG_CZECHOSLOVAKTYPES, b);
4128 break;
4129 case FLG_NULL:
4130 DOSET (FLG_NULLSTATE, b);
4131 DOSET (FLG_NULLDEREF, b);
4132 DOSET (FLG_NULLASSIGN, b);
4133 DOSET (FLG_NULLPASS, b);
4134 DOSET (FLG_NULLRET, b);
4135 break;
4136 case FLG_MUSTFREE:
4137 DOSET (FLG_MUSTFREEONLY, b);
4138 DOSET (FLG_MUSTFREEFRESH, b);
4139 break;
4140 case FLG_MEMCHECKS:
4141 DOSET (FLG_NULLSTATE, b);
4142 DOSET (FLG_NULLDEREF, b);
4143 DOSET (FLG_NULLASSIGN, b);
4144 DOSET (FLG_NULLPASS, b);
4145 DOSET (FLG_NULLRET, b);
4146 DOSET (FLG_COMPDEF, b);
4147 DOSET (FLG_COMPMEMPASS, b);
4148 DOSET (FLG_UNIONDEF, b);
4149 DOSET (FLG_MEMTRANS, b);
4150 DOSET (FLG_USERELEASED, b);
4151 DOSET (FLG_ALIASUNIQUE, b);
4152 DOSET (FLG_MAYALIASUNIQUE, b);
4153 DOSET (FLG_MUSTFREEONLY, b);
4154 DOSET (FLG_MUSTFREEFRESH, b);
4155 DOSET (FLG_MUSTDEFINE, b);
4156 DOSET (FLG_GLOBSTATE, b);
4157 DOSET (FLG_COMPDESTROY, b);
4158 DOSET (FLG_MUSTNOTALIAS, b);
4159 DOSET (FLG_MEMIMPLICIT, b);
4160 DOSET (FLG_BRANCHSTATE, b);
4161 /*@fallthrough@*/ /* also sets memtrans flags */
4162 case FLG_MEMTRANS:
4163 DOSET (FLG_MEMTRANS, b);
4164 DOSET (FLG_EXPOSETRANS, b);
4165 DOSET (FLG_OBSERVERTRANS, b);
4166 DOSET (FLG_DEPENDENTTRANS, b);
4167 DOSET (FLG_NEWREFTRANS, b);
4168 DOSET (FLG_ONLYTRANS, b);
4169 DOSET (FLG_OWNEDTRANS, b);
4170 DOSET (FLG_FRESHTRANS, b);
4171 DOSET (FLG_SHAREDTRANS, b);
4172 DOSET (FLG_TEMPTRANS, b);
4173 DOSET (FLG_KEPTTRANS, b);
4174 DOSET (FLG_REFCOUNTTRANS, b);
4175 DOSET (FLG_STATICTRANS, b);
4176 DOSET (FLG_UNKNOWNTRANS, b);
4177 DOSET (FLG_KEEPTRANS, b);
4178 DOSET (FLG_IMMEDIATETRANS, b);
4179 break;
4180
4181 default:
4182 break;
4183 }
4184
4185 if (b && !gc.anyExports
4186 && (f == FLG_EXPORTVAR || f == FLG_EXPORTFCN
4187 || f == FLG_EXPORTTYPE || f == FLG_EXPORTMACRO
4188 || f == FLG_EXPORTCONST
4189 || f == FLG_EXPORTANY))
4190 {
4191 gc.anyExports = TRUE;
4192 }
4193 }
4194
4195 bool
4196 context_maybeSet (flagcode d)
4197 {
4198 return (gc.flags[d] || gc.setLocally[d]);
4199 }
4200
4201 bool
4202 context_getFlag (flagcode d)
4203 {
4204 return (gc.flags[d]);
4205 }
4206
4207 bool
4208 context_flagOn (flagcode f, fileloc loc)
4209 {
4210 return (!context_suppressFlagMsg (f, loc));
4211 }
4212
4213 static void context_saveFlagSettings (void)
4214 {
4215 gc.savedFlags = TRUE;
4216 llassert (sizeof (gc.saveflags) == sizeof (gc.flags));
4217 memcpy (gc.saveflags, gc.flags, sizeof (gc.flags));
4218 }
4219
4220 static void context_restoreFlagSettings (void)
4221 {
4222 llassert (sizeof (gc.saveflags) == sizeof (gc.flags));
4223 memcpy (gc.flags, gc.saveflags, sizeof (gc.flags));
4224 gc.savedFlags = FALSE;
4225 }
4226
4227 void context_setFilename (fileId fid, int lineno)
4228 /*@globals fileloc g_currentloc;@*/
4229 /*@modifies g_currentloc@*/
4230 {
4231 if (fileId_baseEqual (currentFile (), fid))
4232 {
4233 setLine (lineno);
4234 return;
4235 }
4236 else
4237 {
4238 fileloc_setColumn (g_currentloc, 0);
4239
4240 if (fileloc_isSpecialFile (g_currentloc))
4241 {
4242 gc.inDerivedFile = TRUE;
4243 }
4244
4245 if (filelocStack_popPushFile (gc.locstack, g_currentloc))
4246 {
4247 int maxdepth = context_getValue (FLG_INCLUDENEST);
4248
4249 if (filelocStack_size (gc.locstack) > maxdepth)
4250 {
4251 int depth = filelocStack_includeDepth (gc.locstack);
4252
4253 if (depth > maxdepth)
4254 {
4255 if (optgenerror
4256 (FLG_INCLUDENEST,
4257 message ("Maximum include nesting depth "
4258 "(%d, current depth %d) exceeded",
4259 maxdepth,
4260 depth),
4261 filelocStack_nextTop (gc.locstack)))
4262 {
4263 filelocStack_printIncludes (gc.locstack);
4264 }
4265 }
4266 }
4267 }
4268
4269 g_currentloc = fileloc_create (fid, lineno, 1);
4270
4271 context_enterFileAux ();
4272 }
4273 }
4274
4275 void context_enterIterDef (/*@observer@*/ uentry le)
4276 {
4277 context_enterMacro (le);
4278 gc.acct = typeIdSet_subtract (gc.facct, gc.nacct);
4279 gc.kind = CX_ITERDEF;
4280 }
4281
4282 void context_enterIterEnd (/*@observer@*/ uentry le)
4283 {
4284 context_enterMacro (le);
4285 gc.kind = CX_ITEREND;
4286 }
4287
4288 void
4289 context_destroyMod (void)
4290 /*@globals killed gc@*/
4291 {
4292 int i;
4293 setCodePoint ();
4294 ctype_destroyMod ();
4295 /*
4296 setCodePoint ();
4297 usymtab_free ();
4298 setCodePoint ();
4299 */
4300
4301 fileTable_free (gc.ftab);
4302 gc.ftab = fileTable_undefined;
4303
4304 filelocStack_free (gc.locstack);
4305 setCodePoint ();
4306
4307 macrocache_free (gc.mc);
4308
4309 /* evans 2002-07-12: not reported because of reldef */
4310 for (i = 0; i < gc.nmods; i++)
4311 {
4312 cstring_free (gc.moduleaccess[i].file);
4313 }
4314
4315 sfree (gc.moduleaccess);
4316 setCodePoint ();
4317
4318 fileloc_free (gc.saveloc); gc.saveloc = fileloc_undefined;
4319 fileloc_free (gc.pushloc); gc.pushloc = fileloc_undefined;
4320
4321 setCodePoint ();
4322 sRefSetList_free (gc.modrecs);
4323 setCodePoint ();
4324 flagMarkerList_free (gc.markers);
4325 setCodePoint ();
4326 messageLog_free (gc.msgLog);
4327 setCodePoint ();
4328 clauseStack_free (gc.clauses);
4329 setCodePoint ();
4330
4331 cstring_free (gc.msgAnnote);
4332 globSet_free (gc.globs_used);
4333 metaStateTable_free (gc.stateTable);
4334 annotationTable_free (gc.annotTable);
4335 }
4336
4337 /*
4338 ** Flag shortcuts
4339 */
4340
4341 bool context_msgBoolInt (void)
4342 {
4343 return context_flagOn (FLG_BOOLINT, g_currentloc);
4344 }
4345
4346 bool context_msgCharInt (void)
4347 {
4348 return context_flagOn (FLG_CHARINT, g_currentloc);
4349 }
4350
4351 bool context_msgEnumInt (void)
4352 {
4353 return context_flagOn (FLG_ENUMINT, g_currentloc);
4354 }
4355
4356 bool context_msgLongInt (void)
4357 {
4358 return context_flagOn (FLG_LONGINT, g_currentloc);
4359 }
4360
4361 bool context_msgShortInt (void)
4362 {
4363 return context_flagOn (FLG_SHORTINT, g_currentloc);
4364 }
4365
4366 bool context_msgPointerArith (void)
4367 {
4368 return context_flagOn (FLG_POINTERARITH, g_currentloc);
4369 }
4370
4371 bool context_msgStrictOps (void)
4372 {
4373 return context_flagOn (FLG_STRICTOPS, g_currentloc);
4374 }
4375
4376 bool context_msgLh (void)
4377 {
4378 return gc.flags [FLG_DOLH];
4379 }
4380
4381 void context_pushLoc (void)
4382 {
4383 fileloc_free (gc.pushloc);
4384 gc.pushloc = gc.saveloc;
4385 gc.saveloc = fileloc_undefined;
4386 }
4387
4388 void context_popLoc (void)
4389 {
4390 gc.saveloc = fileloc_update (gc.saveloc, gc.pushloc);
4391 }
4392
4393 bool context_inGlobalScope (void)
4394 {
4395 return (usymtab_inFileScope() || usymtab_inGlobalScope ());
4396 }
4397
4398 bool context_inInnerScope (void)
4399 {
4400 return (gc.kind == CX_INNER);
4401 }
4402
4403 void context_setProtectVars (void)
4404 {
4405 gc.protectVars = TRUE;
4406 }
4407
4408 bool context_anyErrors (void)
4409 {
4410 return (gc.numerrors > 0);
4411 }
4412
4413 void context_hasError (void)
4414 {
4415 gc.numerrors++;
4416 DPRINTF (("num errors: %d", gc.numerrors));
4417 }
4418
4419 int context_numErrors (void)
4420 {
4421 return gc.numerrors;
4422 }
4423
4424 bool context_neednl (void)
4425 {
4426 return gc.neednl;
4427 }
4428
4429 void context_setNeednl (void)
4430 {
4431 gc.neednl = TRUE;
4432 }
4433
4434 int context_getExpect (void)
4435 {
4436 return (context_getValue (FLG_EXPECT));
4437 }
4438
4439 int context_getLCLExpect (void)
4440 {
4441 return (context_getValue (FLG_LCLEXPECT));
4442 }
4443
4444 int context_getLimit (void)
4445 {
4446 return (context_getValue (FLG_LIMIT));
4447 }
4448
4449 bool context_unlimitedMessages (void)
4450 {
4451 return (context_getLimit () < 0);
4452 }
4453
4454 void context_releaseVars (void)
4455 {
4456 llassert (gc.protectVars);
4457 gc.protectVars = FALSE;
4458 }
4459
4460 void context_sizeofReleaseVars (void)
4461 {
4462 /* If there is a nested sizeof, this might not hold:
4463 llassert (gc.protectVars);
4464 */
4465
4466 gc.protectVars = FALSE;
4467 }
4468
4469 bool context_inProtectVars (void)
4470 {
4471 return (gc.protectVars);
4472 }
4473
4474 # ifdef DEADCODE
4475 void context_hideShowscan (void)
4476 {
4477 gc.flags[FLG_SHOWSCAN] = FALSE;
4478 }
4479
4480 void context_unhideShowscan (void)
4481 {
4482 gc.flags[FLG_SHOWSCAN] = TRUE;
4483 }
4484 # endif /* DEADCODE */
4485
4486 bool context_inHeader (void)
4487 {
4488 return (gc.inheader);
4489 }
4490
4491 fileTable context_fileTable (void)
4492 {
4493 return gc.ftab;
4494 }
4495
4496 cstring context_tmpdir (void)
4497 {
4498 return (context_getString (FLG_TMPDIR));
4499 }
4500
4501 messageLog context_messageLog (void)
4502 {
4503 return gc.msgLog;
4504 }
4505
4506 bool context_inMacroFunction (void)
4507 {
4508 return (gc.kind == CX_MACROFCN);
4509 }
4510
4511 bool context_inMacroConstant (void)
4512 {
4513 return (gc.kind == CX_MACROCONST);
4514 }
4515
4516 bool context_inUnknownMacro (void)
4517 {
4518 return (gc.kind == CX_UNKNOWNMACRO);
4519 }
4520
4521 void context_setShownFunction (void)
4522 {
4523 gc.showfunction = FALSE;
4524 }
4525
4526 bool context_doDump (void)
4527 {
4528 return cstring_isNonEmpty (context_getString (FLG_DUMP));
4529 }
4530
4531 bool context_doMerge (void)
4532 {
4533 return cstring_isNonEmpty (context_getString (FLG_MERGE));
4534 }
4535
4536 cstring context_getDump (void)
4537 {
4538 return context_getString (FLG_DUMP);
4539 }
4540
4541 cstring context_getMerge (void)
4542 {
4543 return context_getString (FLG_MERGE);
4544 }
4545
4546 bool context_inLCLLib (void)
4547 {
4548 return (gc.kind == CX_LCLLIB);
4549 }
4550
4551
4552 /*drl add these 3/5/2003*/
4553 static bool inSizeof = FALSE;
4554
4555 bool context_inSizeof (void)
4556 {
4557 return (inSizeof);
4558 }
4559
4560 void context_enterSizeof (void)
4561 {
4562 DPRINTF((message("context_enterSizeof ") ) );
4563 inSizeof = TRUE;
4564 }
4565
4566 void context_leaveSizeof (void)
4567 {
4568 DPRINTF((message("context_leaveSizeof ") ));
4569 inSizeof = FALSE;
4570 }
4571 /*end function added 3/5/2003*/
4572
4573
4574 bool context_inImport (void)
4575 {
4576 return (gc.inimport);
4577 }
4578
4579 void context_enterImport (void)
4580 {
4581 gc.inimport = TRUE;
4582 }
4583
4584 void context_leaveImport (void)
4585 {
4586 gc.inimport = FALSE;
4587 }
4588
4589 bool context_inMacro (void)
4590 {
4591 return (gc.kind == CX_MACROFCN || gc.kind == CX_MACROCONST
4592 || gc.kind == CX_UNKNOWNMACRO
4593 || gc.kind == CX_ITERDEF || gc.kind == CX_ITEREND);
4594 }
4595
4596 bool context_inIterDef (void)
4597 {
4598 return (gc.kind == CX_ITERDEF);
4599 }
4600
4601 bool context_inIterEnd (void)
4602 {
4603 return (gc.kind == CX_ITEREND);
4604 }
4605
4606 int context_getLinesProcessed (void)
4607 {
4608 return (gc.linesprocessed);
4609 }
4610
4611 int context_getSpecLinesProcessed (void)
4612 {
4613 return (gc.speclinesprocessed);
4614 }
4615
4616 void context_processedSpecLine (void)
4617 {
4618 gc.speclinesprocessed++;
4619 }
4620
4621 void context_resetSpecLines (void)
4622 {
4623 gc.speclinesprocessed = 0;
4624
4625 }
4626
4627 bool context_inGlobalContext (void)
4628 {
4629 return (gc.kind == CX_GLOBAL);
4630 }
4631
4632 static void context_quietExitScopes (void)
4633 {
4634 /*
4635 ** Try to restore the global scope (after an error).
4636 */
4637
4638 while (!usymtab_inFileScope ())
4639 {
4640 usymtab_quietExitScope (g_currentloc);
4641 }
4642
4643 gc.cont.glob = TRUE;
4644 gc.kind = CX_GLOBAL;
4645 }
4646
4647 void context_checkGlobalScope (void)
4648 {
4649 if (gc.kind != CX_GLOBAL)
4650 {
4651 if (context_inMacro ())
4652 {
4653 ; /* evans 2001-10-14: Okay to be in a macro here! */
4654 }
4655 else
4656 {
4657 llcontbug (message ("Not in global scope as expected: %q", context_unparse ()));
4658 context_quietExitScopes ();
4659 }
4660 }
4661 }
4662
4663 void context_setFileId (fileId s)
4664 {
4665 g_currentloc = fileloc_updateFileId (g_currentloc, s);
4666 }
4667
4668 bool context_setBoolName (void)
4669 {
4670 return (!cstring_equalLit (context_getString (FLG_BOOLTYPE),
4671 DEFAULT_BOOLTYPE));
4672 }
4673
4674 cstring context_printBoolName (void)
4675 {
4676 if (context_setBoolName ())
4677 {
4678 return context_getBoolName ();
4679 }
4680 else
4681 {
4682 return cstring_makeLiteralTemp ("boolean");
4683 }
4684 }
4685
4686 cstring context_getBoolName (void)
4687 {
4688 return (context_getString (FLG_BOOLTYPE));
4689 }
4690
4691 cstring context_getFalseName (void)
4692 {
4693 return (context_getString (FLG_BOOLFALSE));
4694 }
4695
4696 cstring context_getTrueName (void)
4697 {
4698 return (context_getString (FLG_BOOLTRUE));
4699 }
4700
4701 cstring context_getLarchPath (void)
4702 {
4703 return (context_getString (FLG_LARCHPATH));
4704 }
4705
4706 cstring context_getLCLImportDir (void)
4707 {
4708 return (context_getString (FLG_LCLIMPORTDIR));
4709 }
4710
4711 static void context_setJustPopped (void)
4712 {
4713 gc.justpopped = TRUE;
4714 }
4715
4716 void context_clearJustPopped (void)
4717 {
4718 gc.justpopped = FALSE;
4719 }
4720
4721 bool context_justPopped (void)
4722 {
4723 return (gc.justpopped);
4724 }
4725
4726 void context_setMacroMissingParams (void)
4727 {
4728 gc.macroMissingParams = TRUE;
4729 }
4730
4731 void context_resetMacroMissingParams (void)
4732 {
4733 gc.macroMissingParams = FALSE;
4734 }
4735
4736 bool context_isMacroMissingParams (void)
4737 {
4738 return (gc.macroMissingParams);
4739 }
4740
4741 # ifdef DEADCODE
4742 void context_showFilelocStack (void)
4743 {
4744 filelocStack_printIncludes (gc.locstack);
4745 }
4746
4747 metaStateTable context_getMetaStateTable (void)
4748 {
4749 return gc.stateTable;
4750 }
4751 # endif /* DEADCODE */
4752
4753 metaStateInfo context_lookupMetaStateInfo (cstring key)
4754 {
4755 return metaStateTable_lookup (gc.stateTable, key);
4756 }
4757
4758 /*@null@*/ annotationInfo context_lookupAnnotation (cstring annot)
4759 {
4760 return annotationTable_lookup (gc.annotTable, annot);
4761 }
4762
4763 void context_addAnnotation (annotationInfo info)
4764 {
4765 if (annotationTable_contains (gc.annotTable, annotationInfo_getName (info)))
4766 {
4767 voptgenerror
4768 (FLG_SYNTAX,
4769 message ("Duplicate annotation declaration: %s", annotationInfo_getName (info)),
4770 annotationInfo_getLoc (info));
4771
4772 annotationInfo_free (info);
4773 }
4774 else
4775 {
4776 annotationTable_insert (gc.annotTable, info);
4777 }
4778 }
4779
4780 void context_addMetaState (cstring mname, metaStateInfo msinfo)
4781 {
4782 if (metaStateTable_contains (gc.stateTable, mname))
4783 {
4784 voptgenerror
4785 (FLG_SYNTAX,
4786 message ("Duplicate metastate declaration: %s", mname),
4787 metaStateInfo_getLoc (msinfo));
4788 cstring_free (mname);
4789 metaStateInfo_free (msinfo);
4790 }
4791 else
4792 {
4793 DPRINTF (("Adding meta state: %s", mname));
4794 metaStateTable_insert (gc.stateTable, mname, msinfo);
4795 }
4796 }
4797
4798 valueTable context_createValueTable (sRef s, stateInfo info)
4799 {
4800 if (metaStateTable_size (gc.stateTable) > 0)
4801 {
4802 valueTable res = valueTable_create (metaStateTable_size (gc.stateTable));
4803 /* should use smaller value... */
4804 DPRINTF (("Value table for: %s", sRef_unparse (s)));
4805
4806 metaStateTable_elements (gc.stateTable, msname, msi)
4807 {
4808 mtContextNode context = metaStateInfo_getContext (msi);
4809
4810 if (mtContextNode_matchesRefStrict (context, s))
4811 {
4812 DPRINTF (("Create: %s", metaStateInfo_unparse (msi)));
4813 llassert (cstring_equal (msname, metaStateInfo_getName (msi)));
4814
4815 valueTable_insert
4816 (res,
4817 cstring_copy (metaStateInfo_getName (msi)),
4818 stateValue_createImplicit (metaStateInfo_getDefaultValue (msi, s),
4819 stateInfo_copy (info)));
4820 }
4821 else
4822 {
4823 DPRINTF (("No match: %s", metaStateInfo_unparse (msi)));
4824 }
4825 }
4826 end_metaStateTable_elements ;
4827
4828 stateInfo_free (info);
4829 DPRINTF (("Value table: %s", valueTable_unparse (res)));
4830 return res;
4831 }
4832 else
4833 {
4834 stateInfo_free (info);
4835 return valueTable_undefined;
4836 }
4837 }
4838
4839 valueTable context_createGlobalMarkerValueTable (stateInfo info)
4840 {
4841 if (metaStateTable_size (gc.stateTable) > 0)
4842 {
4843 valueTable res = valueTable_create (metaStateTable_size (gc.stateTable));
4844 /* should use smaller value... */
4845
4846 metaStateTable_elements (gc.stateTable, msname, msi)
4847 {
4848 /* only add global...*/
4849 DPRINTF (("Create: %s", metaStateInfo_unparse (msi)));
4850 llassert (cstring_equal (msname, metaStateInfo_getName (msi)));
4851
4852 valueTable_insert (res,
4853 cstring_copy (metaStateInfo_getName (msi)),
4854 stateValue_create (metaStateInfo_getDefaultGlobalValue (msi),
4855 stateInfo_copy (info)));
4856 }
4857 end_metaStateTable_elements ;
4858
4859 stateInfo_free (info);
4860 DPRINTF (("Value table: %s", valueTable_unparse (res)));
4861 return res;
4862 }
4863 else
4864 {
4865 stateInfo_free (info);
4866 return valueTable_undefined;
4867 }
4868 }
4869
4870 constraintList context_getImplicitFcnConstraints (uentry ue)
4871 {
4872 constraintList ret = constraintList_makeNew ();
4873 uentryList params = uentry_getParams (ue);
4874
4875 uentryList_elements (params, el)
4876 {
4877 DPRINTF (("setImplicitfcnConstraints doing: %s", uentry_unparse(el)));
4878
4879 if (uentry_isElipsisMarker (el))
4880 {
4881 ;
4882 }
4883 else
4884 {
4885 sRef s = uentry_getSref (el);
4886
4887 DPRINTF (("Trying: %s", sRef_unparse (s)));
4888
4889 if (ctype_isPointer (sRef_getType (s)))
4890 {
4891 constraint c = constraint_makeSRefWriteSafeInt (s, 0);
4892 ret = constraintList_add (ret, c);
4893
4894 /*drl 10/23/2002 added support for out*/
4895
4896 if (!uentry_isOut(el))
4897 {
4898 c = constraint_makeSRefReadSafeInt (s, 0);
4899 ret = constraintList_add (ret , c);
4900 }
4901 }
4902 else
4903 {
4904 DPRINTF (("%s is NOT a pointer", sRef_unparseFull (s)));
4905 }
4906 }
4907 } end_uentryList_elements;
4908
4909 DPRINTF (("Returns ==> %s", constraintList_unparse (ret)));
4910 return ret;
4911 }
4912
Patched version for SPLint (Secure Programming Lint)