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616915dd | 1 | /* |
11db3170 | 2 | ** Splint - annotation-assisted static program checker |
77d37419 | 3 | ** Copyright (C) 1994-2002 University of Virginia, |
616915dd | 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 lclint: lclint-request@cs.virginia.edu | |
21 | ** To report a bug: lclint-bug@cs.virginia.edu | |
11db3170 | 22 | ** For more information: http://www.splint.org |
616915dd | 23 | */ |
24 | /* | |
25 | ** flags.c | |
26 | */ | |
27 | ||
28 | # include "lclintMacros.nf" | |
29 | # include "basic.h" | |
30 | # include "portab.h" | |
31 | ||
32 | /* | |
33 | ** from the CC man page: | |
34 | ** | |
35 | ** -Idir Search for #include files whose names do not begin with a | |
36 | ** slash (/) in the following order: (1) in the directory of | |
37 | ** the dir argument, (2) in the directories specified by -I | |
38 | ** options, (3) in the standard directory (/usr/include). | |
39 | */ | |
40 | ||
41 | /* needed for string literals literals */ | |
42 | ||
43 | typedef struct { | |
44 | flagkind kind; | |
45 | /*@null@*/ /*@observer@*/ char *name; | |
46 | /*@null@*/ /*@observer@*/ char *describe; | |
47 | } flagcatinfo; | |
48 | ||
49 | static flagcatinfo categories[] = | |
50 | { | |
51 | { FK_ABSTRACT, "abstract", "abstraction violations, representation access" } , | |
52 | { FK_ALIAS, "aliasing", "unexpected or dangerous aliasing" } , | |
53 | { FK_USE, "alluse", "all declarations are used" } , | |
54 | { FK_ANSI, "ansi", "violations of constraints imposed by ANSI/ISO standard" } , | |
55 | { FK_ARRAY, "arrays", "special checking involving arrays" } , | |
56 | { FK_BOOL, "booleans", "checking and naming of boolean types" } , | |
28bf4b0b | 57 | { FK_COMMENTS, "comments", "interpretation of semantic comments" } , |
616915dd | 58 | { FK_COMPLETE, "complete", "completely defined, used, or specified system" } , |
59 | { FK_CONTROL, "controlflow", "suspicious control structures" } , | |
28bf4b0b | 60 | { FK_DEBUG, "debug", "flags for debugging lclint" } , |
616915dd | 61 | { FK_DECL, "declarations", "consistency of declarations" } , |
62 | { FK_DEF, "definition", "undefined storage errors" } , | |
63 | { FK_DIRECT, "directories", "set directores" } , | |
64 | { FK_DISPLAY, "display", "control what is displayed" } , | |
65 | { FK_EFFECT, "effect", "statements with no effects" } , | |
66 | { FK_ERRORS, "errors", "control expected errors, summary reporting" } , | |
67 | { FK_EXPORT, "export", "control what may be exported" } , | |
68 | { FK_EXPOSURE, "exposure", "representation exposure" } , | |
69 | { FK_FILES, "files", "control system files" } , | |
70 | { FK_FORMAT, "format", "control format of warning messages" } , | |
71 | { FK_GLOBALS, "globals", "use of global and file static variables" }, | |
72 | { FK_HEADERS, "headers", "control inclusion and generation of header files" }, | |
73 | { FK_HELP, "help", "on-line help" }, | |
74 | { FK_IMPLICIT, "implicit", "control implicit annotations and interpretations" } , | |
75 | { FK_INIT, "initializations", "initialization files" } , | |
76 | { FK_ITER, "iterators", "checking iterator definitions and uses" } , | |
77 | { FK_LEAK, "leaks", "memory leaks" } , | |
78 | { FK_LIBS, "libraries", "loading and dumping of user and standard libraries" } , | |
79 | { FK_LIMITS, "limits", "violations of set limits" } , | |
80 | { FK_MACROS, "macros", "expansion, definition and use of macros" }, | |
81 | { FK_MEMORY, "memory", "memory management" } , | |
82 | { FK_MODIFIES, "modification", "modification errors" } , | |
83 | { FK_NAMES, "names", "naming conventions and limits" } , | |
84 | { FK_NULL, "null", "misuses of null pointers" } , | |
85 | { FK_NUMBERS, "numbers", "control type-checking of numeric types" } , | |
86 | { FK_OPS, "operations", "checking of primitive operations" } , | |
87 | { FK_PARAMS, "parameters", "function and macro parameters" } , | |
88 | { FK_SPEED, "performance", "speeding up checking" } , | |
89 | { FK_POINTER, "pointers", "pointers" } , | |
90 | { FK_PRED, "predicates", "condition test expressions" } , | |
91 | { FK_PREFIX, "prefixes", "set naming prefixes and control checking" } , | |
92 | { FK_PREPROC, "preproc", "defines and undefines for the preprocessor" } , | |
93 | { FK_PROTOS, "prototypes", "function prototypes" } , | |
94 | { FK_DEAD, "released", "using storage that has been deallocated" } , | |
95 | { FK_IGNORERET, "returnvals", "ignored return values" }, | |
28bf4b0b | 96 | { FK_SECURITY, "security", "possible security vulnerability" }, |
616915dd | 97 | { FK_SPEC, "specifications", "checks involving .lcl specifications" } , |
98 | { FK_SUPPRESS, "suppress", "local and global suppression of messages" } , | |
99 | { FK_TYPEEQ, "typeequivalence", "control what types are equivalent" } , | |
100 | { FK_BEHAVIOR, "undefined", "code with undefined or implementation-defined behavior" } , | |
101 | { FK_UNRECOG, "unrecognized", "unrecognized identifiers" } , | |
102 | { FK_UNSPEC, "unconstrained", "checking in the presence of unconstrained functions" } , | |
28bf4b0b | 103 | { FK_WARNUSE, "warnuse", "use of possibly problematic function" } , |
616915dd | 104 | { FK_SYNTAX, NULL, NULL } , |
105 | { FK_TYPE, NULL, NULL } , | |
106 | { FK_SECRET, NULL, NULL } , | |
107 | { FK_OBSOLETE, NULL, NULL } , | |
108 | { FK_NONE, NULL, NULL } /* must be last */ | |
109 | } ; | |
110 | ||
111 | typedef enum { | |
112 | ARG_NONE, | |
113 | ARG_VALUE, | |
114 | ARG_STRING, | |
115 | ARG_SPECIAL | |
116 | } argcode; | |
117 | ||
118 | typedef struct { | |
119 | flagkind main; | |
120 | flagkind sub; | |
121 | bool isSpecial; /* setting this flag may set other flags (or values) */ | |
122 | bool isIdem; /* idempotent - always sets to TRUE */ | |
123 | bool isGlobal; /* cannot be set locally (using control comments) */ | |
124 | bool isModeFlag; /* set by modes */ | |
125 | argcode argtype; | |
126 | /*@observer@*/ char *flag; | |
127 | flagcode code; | |
128 | /*@observer@*/ /*@null@*/ char *desc; | |
129 | bn_mstring hint; | |
130 | int nreported; | |
131 | int nsuppressed; | |
132 | } fflag; | |
133 | ||
134 | typedef fflag flaglist[]; | |
135 | ||
136 | # include "flags.def" | |
137 | ||
138 | /*@iter allFlags (yield observer fflag f); @*/ | |
139 | # define allFlags(m_f) \ | |
140 | { /*@+enumint@*/ flagcode m_i; for (m_i = 0; m_i < NUMFLAGS; m_i++) { fflag m_f = flags[m_i]; /*@=enumint@*/ | |
141 | # define end_allFlags }} | |
142 | ||
143 | static bn_mstring mode_names[] = | |
144 | { | |
145 | "weak", "standard", "checks", "strict", NULL, | |
146 | }; | |
147 | ||
148 | /*@iter allModes (yield bn_mstring modename)@*/ | |
149 | # define allModes(m_m) \ | |
150 | { int m_ii = 0; while (mstring_isDefined (mode_names[m_ii])) \ | |
151 | { bn_mstring m_m = mode_names[m_ii]; m_ii++; | |
152 | ||
153 | # define end_allModes }} | |
154 | ||
155 | /*@+enumint@*/ | |
156 | ||
157 | static cstring describeFlagCode (flagcode p_flag) /*@*/ ; | |
158 | static cstringSList sortedFlags (void) /*@*/ ; | |
159 | static /*@observer@*/ cstring categoryName (flagkind p_kind) /*@*/ ; | |
8250fa4a | 160 | |
a956d444 | 161 | static flagcode flags_identifyFlagAux (cstring p_s, bool p_quiet) /*@modifies g_msgstream@*/ ; |
162 | ||
8250fa4a | 163 | # if 0 |
616915dd | 164 | static /*@unused@*/ cstring listModes (void) /*@*/ ; |
8250fa4a | 165 | # endif |
616915dd | 166 | |
167 | bool flagcode_isSpecialFlag (flagcode f) | |
168 | { | |
169 | return (flags[f].isSpecial); | |
170 | } | |
171 | ||
172 | bool flagcode_isGlobalFlag (flagcode f) | |
173 | { | |
174 | return (flags[f].isGlobal); | |
175 | } | |
176 | ||
177 | bool flagcode_isIdemFlag (flagcode f) | |
178 | { | |
179 | return (flags[f].isIdem); | |
180 | } | |
181 | ||
182 | bool flagcode_isModeFlag (flagcode f) | |
183 | { | |
184 | return (flags[f].isModeFlag); | |
185 | } | |
186 | ||
187 | bool flagcode_isNameChecksFlag (flagcode f) | |
188 | { | |
189 | return (flags[f].main == FK_NAMES); | |
190 | } | |
191 | ||
192 | /* | |
193 | ** Internal consistency check on the flags. | |
194 | */ | |
195 | ||
196 | void flags_initMod () | |
197 | { | |
198 | allFlagCodes (code) | |
199 | { | |
200 | /*@+enumint@*/ | |
201 | if (flags[code].code != code) | |
202 | { | |
28bf4b0b | 203 | fprintf (stderr, |
204 | "*** ERROR: inconsistent flag %s / %d / %d", | |
205 | flags[code].flag, | |
206 | flags[code].code, code); | |
207 | ||
616915dd | 208 | llbug (message ("*** ERROR: inconsistent flag %s / %d / %d", |
209 | cstring_fromChars (flags[code].flag), | |
210 | flags[code].code, code)); | |
211 | } | |
212 | /*@=enumint@*/ | |
213 | } end_allFlagCodes; | |
214 | } | |
215 | ||
216 | void | |
217 | summarizeErrors () | |
218 | { | |
219 | bool hadOne = FALSE; | |
220 | int sumrep = 0; | |
221 | int sumsup = 0; | |
222 | ||
223 | char *buf = mstring_create (128); | |
224 | ||
225 | allFlags (f) | |
226 | { | |
227 | if (f.nreported > 0 || f.nsuppressed > 0) | |
228 | { | |
229 | int nrep = f.nreported; | |
230 | int nsup = f.nsuppressed; | |
231 | cstring fs = cstring_fill (cstring_fromChars (f.flag), 23); | |
232 | ||
233 | if (!hadOne) | |
234 | { | |
235 | llmsgplain (cstring_makeLiteral | |
236 | ("\nError Type Reported Suppressed\n" | |
237 | "=================== ======== =========")); | |
238 | hadOne = TRUE; | |
239 | } | |
240 | ||
241 | sprintf (buf, "%s%7d %9d", cstring_toCharsSafe (fs), nrep, nsup); | |
242 | ||
243 | sumrep += nrep; | |
244 | sumsup += nsup; | |
245 | ||
246 | cstring_free (fs); | |
247 | llmsg (cstring_copy (cstring_fromChars (buf))); | |
248 | } | |
249 | } end_allFlags; | |
250 | ||
251 | if (hadOne) | |
252 | { | |
253 | cstring ts = cstring_fill (cstring_makeLiteralTemp ("Total"), 23); | |
254 | ||
255 | llmsglit (" ======== ========="); | |
256 | ||
257 | sprintf (buf, "%s%7d %9d", cstring_toCharsSafe (ts), sumrep, sumsup); | |
258 | cstring_free (ts); | |
259 | llmsgplain (cstring_copy (cstring_fromChars (buf))); | |
260 | } | |
261 | ||
262 | sfree (buf); | |
263 | } | |
264 | ||
265 | /*@+enumindex@*/ | |
266 | ||
267 | void | |
268 | flagcode_recordError (flagcode f) | |
269 | { | |
270 | if (f != INVALID_FLAG) | |
271 | { | |
272 | if (f == FLG_WARNFLAGS) | |
273 | { | |
274 | ; /* don't count these */ | |
275 | } | |
276 | else | |
277 | { | |
278 | flags[f].nreported = flags[f].nreported + 1; | |
279 | } | |
280 | } | |
281 | else | |
282 | { | |
283 | llcontbug (message ("flagcode_recordError: invalid flag: %d", (int) f)); | |
284 | } | |
285 | } | |
286 | ||
287 | void | |
288 | flagcode_recordSuppressed (flagcode f) | |
289 | { | |
290 | llassertprint (f != INVALID_FLAG, ("flagcode: %s", flagcode_unparse (f))); | |
291 | ||
292 | flags[f].nsuppressed = flags[f].nsuppressed + 1; | |
293 | } | |
294 | ||
295 | int | |
296 | flagcode_numReported (flagcode f) | |
297 | { | |
298 | llassert (f != INVALID_FLAG); | |
299 | ||
300 | return (flags[f].nreported); | |
301 | } | |
302 | ||
303 | /*@observer@*/ cstring | |
304 | flagcodeHint (flagcode f) | |
305 | { | |
306 | llassert (f != INVALID_FLAG); | |
307 | ||
308 | if (mstring_isDefined (flags[f].hint)) | |
309 | { | |
310 | return (cstring_fromChars (flags[f].hint)); | |
311 | } | |
312 | else | |
313 | { | |
314 | return (cstring_fromChars (flags[f].desc)); | |
315 | } | |
316 | } | |
317 | ||
318 | static int categorySize (flagkind kind) /*@*/ | |
319 | { | |
320 | int n = 0; | |
321 | ||
322 | ||
323 | allFlags (f) | |
324 | { | |
325 | if (f.main == kind || f.sub == kind) | |
326 | { | |
327 | n++; | |
328 | } | |
329 | } end_allFlags; | |
330 | ||
331 | return n; | |
332 | } | |
333 | ||
334 | flagkind identifyCategory (cstring s) | |
335 | { | |
336 | int i; | |
337 | ||
338 | for (i = 0; categories[i].kind != FK_NONE; i++) | |
339 | { | |
340 | if (mstring_isDefined (categories[i].name)) | |
341 | { | |
342 | if (cstring_equalLit (s, categories[i].name)) | |
343 | { | |
344 | return categories[i].kind; | |
345 | } | |
346 | } | |
347 | } | |
348 | ||
349 | return FK_NONE; | |
350 | } | |
351 | ||
352 | static /*@observer@*/ cstring categoryName (flagkind kind) | |
353 | { | |
354 | int i; | |
355 | ||
356 | for (i = 0; categories[i].kind != FK_NONE; i++) | |
357 | { | |
358 | if (categories[i].kind == kind) | |
359 | { | |
360 | return (cstring_fromChars (categories[i].name)); | |
361 | } | |
362 | } | |
363 | ||
364 | return (cstring_makeLiteralTemp ("<No Category>")); | |
365 | } | |
366 | ||
367 | static int categoryIndex (flagkind kind) | |
368 | { | |
369 | int i; | |
370 | ||
371 | for (i = 0; categories[i].kind != FK_NONE; i++) | |
372 | { | |
373 | if (categories[i].kind == kind) | |
374 | { | |
375 | return i; | |
376 | } | |
377 | } | |
378 | ||
379 | return -1; | |
380 | } | |
381 | ||
382 | void printCategory (flagkind kind) | |
383 | { | |
384 | int index = categoryIndex (kind); | |
385 | ||
386 | llassert (index >= 0); | |
387 | ||
388 | llmsg (message ("%s (%d flags)\n\3%s\n\n", | |
389 | cstring_fromChars (categories[index].name), | |
390 | categorySize (kind), | |
391 | cstring_fromChars (categories[index].describe))); | |
392 | ||
393 | allFlags (f) | |
394 | { | |
395 | if (f.main == kind || f.sub == kind) | |
396 | { | |
397 | llmsg (message (" %s\n\6%q", cstring_fromChars (f.flag), | |
398 | describeFlagCode (f.code))); | |
399 | } | |
400 | } end_allFlags; | |
401 | } | |
402 | ||
403 | void | |
404 | listAllCategories (void) | |
405 | { | |
406 | int i; | |
407 | ||
408 | for (i = 0; categories[i].kind != FK_NONE; i++) | |
409 | { | |
410 | flagkind kind = categories[i].kind ; | |
411 | ||
412 | if (categories[i].describe != NULL) | |
413 | { | |
414 | llmsg (message ("%s (%d flags)\n\3%s", | |
415 | categoryName (kind), | |
416 | categorySize (kind), | |
417 | cstring_fromChars (categories[i].describe))); | |
418 | } | |
419 | } | |
420 | } | |
421 | ||
422 | void | |
423 | printAllFlags (bool desc, bool full) | |
424 | { | |
425 | if (full) | |
426 | { | |
427 | cstringSList fl = sortedFlags (); | |
428 | ||
429 | cstringSList_elements (fl, el) | |
430 | { | |
431 | llmsg (message ("%q\n\n", describeFlag (el))); | |
432 | } end_cstringSList_elements ; | |
433 | ||
434 | cstringSList_free (fl); | |
435 | } | |
436 | else | |
437 | { | |
438 | allFlags (f) | |
439 | { | |
440 | if (f.code != INVALID_FLAG && f.main != FK_OBSOLETE) | |
441 | { | |
442 | if (mstring_isDefined (f.desc)) | |
443 | { | |
444 | if (desc) | |
445 | { | |
446 | llmsg (message ("%s --- %s", cstring_fromChars (f.flag), | |
447 | cstring_fromChars (f.desc))); | |
448 | } | |
449 | } | |
450 | } | |
451 | } end_allFlags; | |
452 | } | |
453 | } | |
454 | ||
455 | cstring | |
456 | describeFlagCode (flagcode flag) | |
457 | { | |
458 | cstring ret = cstring_undefined; | |
459 | fflag f; | |
460 | ||
461 | if (flagcode_isInvalid (flag)) | |
462 | { | |
463 | return (cstring_makeLiteral ("<invalid>")); | |
464 | } | |
465 | ||
466 | context_resetAllFlags (); | |
467 | ||
468 | f = flags[flag]; | |
469 | ret = cstring_copy (cstring_fromChars (f.desc)); | |
470 | ||
471 | ||
472 | if (f.sub != FK_NONE) | |
473 | { | |
474 | ret = message ("%q\nCategories: %s, %s", | |
475 | ret, | |
476 | categoryName (f.main), | |
477 | categoryName (f.sub)); | |
478 | } | |
479 | else | |
480 | { | |
481 | if (f.main != FK_NONE) | |
482 | { | |
483 | cstring cname = categoryName (f.main); | |
484 | ||
485 | if (cstring_isDefined (cname)) | |
486 | { | |
487 | ret = message ("%q\nCategory: %s", | |
488 | ret, cname); | |
489 | } | |
490 | } | |
491 | } | |
492 | ||
493 | if (f.isModeFlag) | |
494 | { | |
495 | bool first = TRUE; | |
496 | ||
497 | allModes (mname) | |
498 | { | |
499 | context_setMode (cstring_fromChars (mname)); | |
500 | ||
501 | if (first) | |
502 | { | |
503 | ret = message ("%q\nMode Settings: %s %s", | |
504 | ret, cstring_fromChars (mname), | |
505 | cstring_makeLiteralTemp | |
506 | (context_getFlag (flag) ? "+" : "-")); | |
507 | first = FALSE; | |
508 | } | |
509 | else | |
510 | { | |
511 | ret = message ("%q, %s %s", | |
512 | ret, cstring_fromChars (mname), | |
513 | cstring_makeLiteralTemp | |
514 | (context_getFlag (flag) ? "+" : "-")); | |
515 | } | |
516 | } end_allModes; | |
517 | } | |
518 | else | |
519 | { | |
520 | ret = message ("%q\nDefault Setting: %s", | |
521 | ret, | |
522 | cstring_makeLiteralTemp | |
523 | (context_getFlag (flag) ? "+" : "-")); | |
524 | } | |
525 | ||
526 | if (f.isGlobal) | |
527 | { | |
528 | ret = message("%q\nSet globally only", ret); | |
529 | } | |
530 | else | |
531 | { | |
532 | ret = message("%q\nSet locally", ret); | |
533 | } | |
534 | ||
535 | switch (f.argtype) | |
536 | { | |
537 | case ARG_NONE: | |
538 | case ARG_SPECIAL: | |
539 | break; | |
540 | case ARG_VALUE: | |
541 | if (flag == FLG_COMMENTCHAR) | |
542 | { | |
543 | ret = message("%q\nCharacter Argument. Default: %h", | |
544 | ret, (char) context_getValue (flag)); | |
545 | } | |
546 | else | |
547 | { | |
548 | ret = message("%q\nNumeric Argument. Default: %d", | |
549 | ret, | |
550 | context_getValue (flag)); | |
551 | } | |
552 | break; | |
553 | case ARG_STRING: | |
554 | if (cstring_isDefined (context_getString (flag))) | |
555 | { | |
556 | ret = message("%q\nString Argument. Default: %s", | |
557 | ret, | |
558 | context_getString (flag)); | |
559 | } | |
560 | else | |
561 | { | |
562 | ret = message("%q\nString Argument. No default.", ret); | |
563 | } | |
564 | break; | |
565 | } | |
566 | ||
567 | if (mstring_isDefined (f.hint)) | |
568 | { | |
569 | ret = message("%q\n\3%s", ret, cstring_fromChars (f.hint)); | |
570 | } | |
571 | ||
572 | return ret; | |
573 | } | |
574 | ||
575 | cstring | |
576 | describeFlag (cstring flagname) | |
577 | { | |
578 | cstring oflagname = cstring_copy (flagname); | |
a956d444 | 579 | flagcode f = flags_identifyFlag (flagname); |
616915dd | 580 | |
581 | if (flagcode_isSkip (f)) | |
582 | { | |
583 | cstring_free (oflagname); | |
584 | return cstring_undefined; | |
585 | } | |
586 | else if (flagcode_isValid (f)) | |
587 | { | |
588 | if (cstring_equal (flagname, oflagname)) | |
589 | { | |
590 | cstring_free (oflagname); | |
591 | return (message ("%s\n\3%q", flagname, describeFlagCode (f))); | |
592 | } | |
593 | else | |
594 | { | |
595 | return (message ("%q (standardized name: %s)\n\3%q", | |
596 | oflagname, flagname, describeFlagCode (f))); | |
597 | } | |
598 | } | |
599 | else | |
600 | { | |
601 | if (isMode (flagname)) | |
602 | { | |
603 | cstring_free (oflagname); | |
604 | ||
605 | return | |
606 | (message ("%s: predefined mode (see User's Guide for information)", | |
607 | flagname)); | |
608 | } | |
609 | else | |
610 | { | |
611 | return (message ("%q: <invalid flag>", oflagname)); | |
612 | } | |
613 | } | |
614 | } | |
615 | ||
616 | static cstringSList | |
617 | sortedFlags (void) | |
618 | { | |
619 | cstringSList s = cstringSList_new (); | |
620 | ||
621 | allFlags (f) | |
622 | { | |
623 | if (f.desc != NULL) | |
624 | { | |
625 | s = cstringSList_add (s, cstring_fromChars (f.flag)); | |
626 | } | |
627 | } end_allFlags; | |
628 | ||
629 | cstringSList_alphabetize (s); | |
630 | ||
631 | return s; | |
632 | } | |
633 | ||
634 | void printAlphaFlags () | |
635 | { | |
636 | cstringSList fl = sortedFlags (); | |
637 | ||
638 | cstringSList_printSpaced (fl, 3, 1, context_getLineLen () - 25); | |
639 | cstringSList_free (fl); | |
640 | } | |
28bf4b0b | 641 | |
616915dd | 642 | /*@observer@*/ cstring |
28bf4b0b | 643 | flagcode_unparse (flagcode code) |
616915dd | 644 | { |
7272a1c1 | 645 | if (code == INVALID_FLAG) |
646 | { | |
647 | return cstring_makeLiteralTemp ("<invalid flag>"); | |
648 | } | |
649 | ||
616915dd | 650 | return cstring_fromChars (flags[code].flag); |
651 | } | |
652 | ||
653 | /* | |
654 | ** Transforms a flag into its cannonical form. | |
655 | ** | |
656 | ** The following transformations are made: | |
657 | ** | |
658 | ** function -> fcn | |
659 | ** variable -> var | |
660 | ** constant -> const | |
661 | ** iterator -> iter | |
662 | ** parameter -> param | |
663 | ** unrecognized -> unrecog | |
664 | ** qualifier -> qual | |
665 | ** declaration -> decl | |
666 | ** globalias -> (no change) | |
667 | ** global -> glob | |
668 | ** modifies -> mods | |
669 | ** modify -> mod | |
670 | ** pointer -> ptr | |
671 | ** implies -> imp | |
672 | ** implicit -> imp | |
673 | ** implied -> imp | |
674 | ** unconstrained -> unspec | |
675 | ** unconst -> unspec | |
676 | ** memory -> mem | |
677 | ** length -> len | |
678 | */ | |
679 | ||
680 | static void | |
681 | canonicalizeFlag (cstring s) | |
682 | { | |
683 | int i = 0; | |
684 | static bn_mstring transform[] = | |
685 | { | |
686 | "function", "fcn", | |
687 | "variable", "var", | |
688 | "constant", "const", | |
689 | "iterator", "iter", | |
690 | "parameter", "param", | |
691 | "unrecognized", "unrecog", | |
692 | "qualifier", "qual", | |
693 | "declaration", "decl", | |
694 | "globals", "globs", | |
695 | "modifies", "mods", | |
696 | "modify", "mod", | |
697 | "pointer", "ptr", | |
698 | "implies", "imp", | |
699 | "implicit", "imp", | |
700 | "implied", "imp", | |
701 | "unconstrained", "uncon", | |
702 | "unconst", "uncon", | |
703 | "memory", "mem", | |
704 | "length", "len", | |
705 | "return", "ret", | |
706 | "system", "sys", | |
707 | NULL | |
708 | } ; | |
709 | char *current; | |
710 | ||
711 | while ((current = transform[i]) != NULL) | |
712 | { | |
713 | if (cstring_containsLit (s, current)) | |
714 | { | |
715 | cstring_replaceLit (s, current, transform[i+1]); | |
716 | } | |
717 | i += 2; | |
718 | } | |
719 | ||
720 | /* remove whitespace, -'s, and _'s */ | |
721 | cstring_stripChars (s, " -_"); | |
722 | } | |
723 | ||
724 | flagcode | |
a956d444 | 725 | flags_identifyFlag (cstring s) |
726 | { | |
727 | return flags_identifyFlagAux (s, FALSE); | |
728 | } | |
729 | ||
730 | flagcode | |
731 | flags_identifyFlagQuiet (cstring s) | |
732 | { | |
733 | return flags_identifyFlagAux (s, TRUE); | |
734 | } | |
735 | ||
736 | static flagcode | |
737 | flags_identifyFlagAux (cstring s, bool quiet) | |
616915dd | 738 | { |
739 | if (cstring_length (s) == 0) { | |
740 | /* evs 2000-06-25: A malformed flag. */ | |
741 | return INVALID_FLAG; | |
742 | } | |
743 | ||
744 | if (cstring_firstChar (s) == 'I') | |
745 | { | |
746 | return FLG_INCLUDEPATH; /* no space after -I */ | |
747 | } | |
748 | ||
749 | if (cstring_firstChar (s) == 'S') | |
750 | { | |
751 | return FLG_SPECPATH; /* no space after -S */ | |
752 | } | |
753 | ||
754 | if (cstring_firstChar (s) == 'D') | |
755 | { | |
756 | return FLG_DEFINE; /* no space after -D */ | |
757 | } | |
758 | ||
759 | if (cstring_firstChar (s) == 'U') | |
760 | { | |
761 | return FLG_UNDEFINE; /* no space after -D */ | |
762 | } | |
763 | ||
764 | canonicalizeFlag (s); | |
765 | ||
766 | allFlags (f) | |
767 | { | |
768 | if (cstring_equal (cstring_fromChars (f.flag), s)) | |
769 | { | |
770 | return (f.code); | |
771 | } | |
772 | } end_allFlags; | |
773 | ||
774 | /* | |
775 | ** Synonyms | |
776 | */ | |
777 | ||
778 | if (cstring_equalLit (s, "pred")) | |
779 | { | |
780 | return FLG_PREDBOOL; | |
781 | } | |
782 | ||
783 | if (cstring_equalLit (s, "modobserverstrict")) | |
784 | { | |
785 | return FLG_MODOBSERVERUNCON; | |
786 | } | |
787 | ||
788 | if (cstring_equalLit (s, "czechnames")) | |
789 | { | |
790 | return FLG_CZECH; | |
791 | } | |
792 | ||
793 | if (cstring_equalLit (s, "slovaknames")) | |
794 | { | |
795 | return FLG_SLOVAK; | |
796 | } | |
797 | ||
798 | if (cstring_equalLit (s, "czechoslovaknames")) | |
799 | { | |
800 | return FLG_CZECHOSLOVAK; | |
801 | } | |
802 | ||
803 | if (cstring_equalLit (s, "globunspec") | |
804 | || cstring_equalLit (s, "globuncon")) | |
805 | { | |
806 | return FLG_GLOBUNSPEC; | |
807 | } | |
808 | ||
809 | if (cstring_equalLit (s, "modglobsunspec") | |
810 | || cstring_equalLit (s, "modglobsuncon") | |
811 | || cstring_equalLit (s, "modglobsnomods")) | |
812 | { | |
813 | return FLG_MODGLOBSUNSPEC; | |
814 | } | |
815 | ||
816 | if (cstring_equalLit (s, "export")) | |
817 | { | |
818 | return FLG_EXPORTANY; | |
819 | } | |
820 | ||
821 | if (cstring_equalLit (s, "macrospec")) | |
822 | { | |
823 | return FLG_MACRODECL; | |
824 | } | |
825 | ||
826 | if (cstring_equalLit (s, "ansireservedlocal")) | |
827 | { | |
828 | return FLG_ANSIRESERVEDLOCAL; | |
829 | } | |
830 | ||
831 | if (cstring_equalLit (s, "warnposix")) | |
832 | { | |
833 | return FLG_WARNPOSIX; | |
834 | } | |
835 | ||
836 | if (cstring_equalLit (s, "defuse")) | |
837 | { | |
838 | return FLG_USEDEF; | |
839 | } | |
840 | ||
841 | if (cstring_equalLit (s, "macroundef")) | |
842 | { | |
843 | return FLG_MACROUNDEF; | |
844 | } | |
845 | ||
846 | if (cstring_equalLit (s, "showcol")) | |
847 | { | |
848 | return FLG_SHOWCOL; | |
849 | } | |
850 | ||
851 | if (cstring_equalLit (s, "intbool")) | |
852 | { | |
853 | return FLG_BOOLINT; | |
854 | } | |
855 | ||
856 | if (cstring_equalLit (s, "intchar")) | |
857 | { | |
858 | return FLG_CHARINT; | |
859 | } | |
860 | ||
861 | if (cstring_equalLit (s, "intenum")) | |
862 | { | |
863 | return FLG_ENUMINT; | |
864 | } | |
865 | ||
866 | /* | |
27c9e640 | 867 | ** Backwards compatibility for our American friends... |
616915dd | 868 | */ |
869 | ||
27c9e640 | 870 | if (cstring_equalLit (s, "ansilib")) |
616915dd | 871 | { |
872 | return FLG_ANSILIB; | |
873 | } | |
874 | ||
616915dd | 875 | if (cstring_equalLit (s, "ansistrictlib")) |
876 | { | |
877 | return FLG_STRICTLIB; | |
878 | } | |
879 | ||
27c9e640 | 880 | if (cstring_equalLit (s, "skipansiheaders")) |
616915dd | 881 | { |
882 | return FLG_SKIPANSIHEADERS; | |
883 | } | |
884 | ||
27c9e640 | 885 | if (cstring_equalLit (s, "ansireserved")) |
616915dd | 886 | { |
887 | return FLG_ANSIRESERVED; | |
888 | } | |
889 | ||
27c9e640 | 890 | if (cstring_equalLit (s, "ansireservedinternal")) |
616915dd | 891 | { |
892 | return FLG_ANSIRESERVEDLOCAL; | |
893 | } | |
894 | ||
616915dd | 895 | /* |
896 | ** Obsolete Flags | |
897 | */ | |
898 | ||
899 | if (cstring_equalLit (s, "accessunspec")) | |
900 | { | |
a956d444 | 901 | if (!quiet) |
902 | { | |
903 | llerror_flagWarning | |
904 | (cstring_makeLiteral | |
905 | ("accessunspec flag is no longer supported. It has been replaced by accessmodule, accessfile and " | |
906 | "accessfunction to provide more precise control of accessibility " | |
907 | "of representations. For more information, " | |
908 | "see lclint -help accessmodule")); | |
909 | } | |
616915dd | 910 | |
27c9e640 | 911 | return SKIP_FLAG; |
912 | } | |
913 | else if (cstring_equalLit (s, "ansilimits")) | |
914 | { | |
915 | llerror_flagWarning | |
916 | (cstring_makeLiteral | |
917 | ("ansilimits flag is no longer supported. It has been replaced by ansi89limits and " | |
918 | "iso99limits to select either the lower translation limits imposed by the ANSI89 " | |
919 | "standard or the typically higher limits prescribed by ISO C99.")); | |
920 | ||
616915dd | 921 | return SKIP_FLAG; |
922 | } | |
a956d444 | 923 | else if (cstring_equalLit (s, "staticmods")) |
924 | { | |
925 | if (!quiet) | |
926 | { | |
927 | llerror_flagWarning | |
928 | (cstring_makeLiteral | |
929 | ("staticmods flag is obsolete. You probably " | |
930 | "want impcheckmodstatics. For more information, " | |
931 | "see lclint -help impcheckmodstatics")); | |
932 | } | |
616915dd | 933 | |
a956d444 | 934 | return SKIP_FLAG; |
935 | } | |
936 | else if (cstring_equalLit (s, "bool")) | |
616915dd | 937 | { |
a956d444 | 938 | if (!quiet) |
939 | { | |
940 | llerror_flagWarning | |
941 | (cstring_makeLiteral ("bool flag is obsolete. It never really " | |
942 | "made sense in the first place.")); | |
943 | } | |
616915dd | 944 | |
945 | return SKIP_FLAG; | |
946 | } | |
a956d444 | 947 | else if (cstring_equalLit (s, "shiftsigned")) |
616915dd | 948 | { |
a956d444 | 949 | if (!quiet) |
950 | { | |
951 | llerror_flagWarning | |
952 | (cstring_makeLiteral ("shiftsigned flag is obsolete. You probably " | |
953 | "want bitwisesigned, shiftnegative or shiftsize.")); | |
954 | } | |
616915dd | 955 | |
956 | return SKIP_FLAG; | |
957 | } | |
a956d444 | 958 | else if (cstring_equalLit (s, "ansi")) |
616915dd | 959 | { |
a956d444 | 960 | if (!quiet) |
961 | { | |
962 | llerror_flagWarning | |
963 | (cstring_makeLiteral ("ansi flag is obsolete. You probably " | |
964 | "want noparams and/or oldstyle.")); | |
965 | } | |
616915dd | 966 | |
967 | return SKIP_FLAG; | |
968 | } | |
a956d444 | 969 | else if (cstring_equalLit (s, "stdio")) |
970 | { | |
971 | if (!quiet) | |
972 | { | |
973 | llerror_flagWarning | |
974 | (cstring_makeLiteral | |
975 | ("stdio flag is obsolete. You may " | |
976 | "want strictlib or one of the gloabls " | |
977 | "checking flags. For more information, " | |
978 | "see lclint -help strictlib or lclint -help flags globals")); | |
979 | } | |
616915dd | 980 | |
981 | return SKIP_FLAG; | |
982 | } | |
a956d444 | 983 | else |
984 | { | |
985 | return INVALID_FLAG; | |
986 | } | |
616915dd | 987 | } |
988 | ||
989 | void setValueFlag (flagcode opt, cstring arg) | |
990 | { | |
991 | switch (opt) | |
992 | { | |
993 | case FLG_EXPECT: | |
994 | case FLG_LCLEXPECT: | |
995 | case FLG_LIMIT: | |
996 | case FLG_LINELEN: | |
28bf4b0b | 997 | case FLG_INDENTSPACES: |
998 | case FLG_BUGSLIMIT: | |
616915dd | 999 | case FLG_EXTERNALNAMELEN: |
1000 | case FLG_INTERNALNAMELEN: | |
1001 | case FLG_CONTROLNESTDEPTH: | |
1002 | case FLG_STRINGLITERALLEN: | |
1003 | case FLG_NUMSTRUCTFIELDS: | |
1004 | case FLG_NUMENUMMEMBERS: | |
1005 | case FLG_INCLUDENEST: | |
1006 | { | |
1007 | int val = cstring_toPosInt (arg); | |
1008 | ||
1009 | if (val < 0) | |
1010 | { | |
1011 | llerror | |
1012 | (FLG_BADFLAG, | |
1013 | message | |
1014 | ("Flag %s must be followed by a positive number number. " | |
1015 | "Followed by %s", | |
1016 | flagcode_unparse (opt), arg)); | |
1017 | } | |
1018 | else | |
1019 | { | |
28bf4b0b | 1020 | context_setValueAndFlag (opt, val); |
616915dd | 1021 | } |
1022 | } | |
1023 | break; | |
1024 | case FLG_COMMENTCHAR: | |
1025 | { | |
1026 | if (cstring_length (arg) != 1) | |
1027 | { | |
1028 | llfatalerrorLoc | |
1029 | (message | |
1030 | ("Flag %s should be followed by a single character. Followed by %s", | |
1031 | flagcode_unparse (opt), arg)); | |
1032 | } | |
1033 | else | |
1034 | { | |
1035 | context_setCommentMarkerChar (cstring_firstChar (arg)); | |
1036 | } | |
1037 | } | |
1038 | break; | |
1039 | BADDEFAULT; | |
1040 | } | |
1041 | } | |
1042 | ||
1043 | void setStringFlag (flagcode opt, /*@only@*/ cstring arg) | |
1044 | { | |
1045 | switch (opt) | |
1046 | { | |
1047 | case FLG_TMPDIR: | |
1048 | { | |
1049 | if (cstring_lastChar (arg) == CONNECTCHAR) | |
1050 | { | |
1051 | context_setString (opt, arg); | |
1052 | } | |
1053 | else | |
1054 | { | |
1055 | context_setString (opt, cstring_appendChar (arg, CONNECTCHAR)); | |
1056 | } | |
1057 | break; | |
1058 | } | |
1059 | default: | |
1060 | { | |
1061 | context_setString (opt, arg); | |
1062 | break; | |
1063 | } | |
1064 | } | |
1065 | } | |
1066 | ||
1067 | cstring | |
1068 | describeModes () | |
1069 | { | |
1070 | cstring s = cstring_makeLiteral ("Flag "); | |
1071 | cstringSList sflags = sortedFlags (); | |
1072 | ||
1073 | allModes (modename) | |
1074 | { | |
1075 | s = message ("%q%9s", s, cstring_fromChars (modename)); | |
1076 | } end_allModes; | |
1077 | ||
1078 | s = message ("%q\n", s); | |
1079 | ||
1080 | cstringSList_elements (sflags, flagname) | |
1081 | { | |
a956d444 | 1082 | flagcode code = flags_identifyFlag (flagname); |
616915dd | 1083 | fflag currentflag = flags[code]; |
1084 | ||
1085 | if (mstring_isDefined (currentflag.desc) && flagcode_isModeFlag (code)) | |
1086 | { | |
1087 | s = message ("%q\n%27s", s, | |
1088 | cstring_fromChars (currentflag.flag)); | |
1089 | ||
1090 | allModes (modename) | |
1091 | { | |
1092 | context_setMode (cstring_fromChars (modename)); | |
1093 | ||
1094 | if (context_getFlag (code)) | |
1095 | { | |
1096 | s = message ("%q%9s", s, cstring_makeLiteralTemp ("+")); | |
1097 | } | |
1098 | else | |
1099 | { | |
1100 | s = message ("%q%9s", s, cstring_makeLiteralTemp (" ")); | |
1101 | } | |
1102 | ||
1103 | context_resetModeFlags (); | |
1104 | } end_allModes; | |
1105 | } | |
1106 | } end_cstringSList_elements; | |
1107 | ||
1108 | cstringSList_free (sflags); | |
1109 | ||
1110 | s = cstring_appendChar (s, '\n'); | |
1111 | ||
1112 | return (s); | |
1113 | } | |
1114 | ||
8250fa4a | 1115 | # if 0 |
ee229125 | 1116 | static /*@unused@*/ cstring |
616915dd | 1117 | listModes (void) |
1118 | { | |
1119 | cstring s = cstring_makeLiteral ("\t"); | |
1120 | int i = 0; | |
1121 | ||
1122 | allModes (modename) | |
1123 | { | |
1124 | if (i != 0 && (i % 4 == 0)) | |
1125 | { | |
1126 | s = message ("%q\n\t%15s", s, cstring_fromChars (modename)); | |
1127 | } | |
1128 | else | |
1129 | { | |
1130 | s = message ("%q%15s", s, cstring_fromChars (modename)); | |
1131 | } | |
1132 | i++; | |
1133 | } end_allModes; | |
1134 | ||
1135 | return s; | |
1136 | } | |
8250fa4a | 1137 | # endif |
616915dd | 1138 | |
1139 | bool | |
1140 | isMode (cstring s) | |
1141 | { | |
1142 | allModes (modename) | |
1143 | { | |
1144 | if (mstring_isDefined (modename)) | |
1145 | { | |
1146 | if (cstring_equalLit (s, modename)) | |
1147 | { | |
1148 | return TRUE; | |
1149 | } | |
1150 | } | |
1151 | } end_allModes; | |
1152 | ||
1153 | return FALSE; | |
1154 | } | |
1155 | ||
1156 | extern bool flagcode_hasArgument (flagcode f) | |
1157 | { | |
1158 | return (flags[f].argtype != ARG_NONE); | |
1159 | } | |
1160 | ||
1161 | extern bool flagcode_hasValue (flagcode f) | |
1162 | { | |
1163 | return (flags[f].argtype == ARG_VALUE); | |
1164 | } | |
1165 | ||
1166 | extern bool flagcode_hasString (flagcode f) | |
1167 | { | |
1168 | return (flags[f].argtype == ARG_STRING); | |
1169 | } | |
1170 | ||
1171 | extern int flagcode_valueIndex (flagcode f) | |
1172 | { | |
1173 | /*@unchecked@*/ static bool initialized = FALSE; | |
1174 | int i; | |
1175 | /*@unchecked@*/ static flagcode valueFlags[NUMVALUEFLAGS]; | |
616915dd | 1176 | |
1177 | if (!initialized) | |
1178 | { | |
1179 | int nv = 0; | |
1180 | ||
1181 | allFlagCodes (code) | |
1182 | { | |
1183 | if (flagcode_hasValue (code)) | |
1184 | { | |
1185 | llassert (nv < NUMVALUEFLAGS); | |
28bf4b0b | 1186 | DPRINTF (("Value flag: %s [%d]", flagcode_unparse (code), (int) code)); |
616915dd | 1187 | valueFlags[nv] = code; |
28bf4b0b | 1188 | nv++; |
616915dd | 1189 | } |
1190 | } end_allFlagCodes; | |
1191 | ||
1192 | llassertprint (nv == NUMVALUEFLAGS, | |
28bf4b0b | 1193 | ("Number of value flags: %d (expected %d)", |
1194 | nv, (int) NUMVALUEFLAGS)); | |
616915dd | 1195 | initialized = TRUE; |
1196 | } | |
1197 | ||
1198 | for (i = 0; i < NUMVALUEFLAGS; i++) | |
1199 | { | |
1200 | /* static valueFlags must be defined */ | |
1201 | /*@-usedef@*/ if (f == valueFlags[i]) /*@=usedef@*/ | |
1202 | { | |
1203 | return i; | |
1204 | } | |
1205 | } | |
1206 | ||
28bf4b0b | 1207 | fprintf (stderr, "Cannot find value flag: %d", (int) f); |
1208 | exit (EXIT_FAILURE); | |
1209 | /* Cannot do this...might call recursively... | |
1210 | llfatalbug (message ("Cannot fine value flag: %d", (int) f)); | |
616915dd | 1211 | BADEXIT; |
28bf4b0b | 1212 | */ |
616915dd | 1213 | } |
1214 | ||
1215 | extern int flagcode_stringIndex (flagcode f) | |
1216 | { | |
1217 | /*@unchecked@*/ static bool initialized = FALSE; | |
1218 | /*@unchecked@*/ static flagcode stringFlags[NUMSTRINGFLAGS]; | |
1219 | int i; | |
1220 | ||
1221 | ||
1222 | if (!initialized) | |
1223 | { | |
1224 | int nv = 0; | |
1225 | ||
1226 | allFlagCodes (code) | |
1227 | { | |
1228 | if (flagcode_hasString (code)) | |
1229 | { | |
1230 | llassertprint (nv < NUMSTRINGFLAGS, ("Incorrect number of string flags: %d (need at least %d)", NUMSTRINGFLAGS, nv)); | |
1231 | stringFlags[nv] = code; | |
1232 | nv++; | |
1233 | } | |
1234 | } end_allFlagCodes; | |
1235 | ||
1236 | llassertprint (nv == NUMSTRINGFLAGS, | |
1237 | ("number of string flags: %d (expected %d)", | |
1238 | nv, NUMSTRINGFLAGS)); | |
1239 | initialized = TRUE; | |
1240 | } | |
1241 | ||
1242 | for (i = 0; i < NUMSTRINGFLAGS; i++) | |
1243 | { | |
1244 | /*@-usedef@*/ if (f == stringFlags[i]) /*@=usedef@*/ | |
1245 | { | |
1246 | return i; | |
1247 | } | |
1248 | } | |
1249 | ||
1250 | llbug (message ("Bad string flag: %s", flagcode_unparse (f))); | |
1251 | BADEXIT; | |
1252 | } | |
1253 | ||
1254 | bool flagcode_isNamePrefixFlag (flagcode f) | |
1255 | { | |
1256 | switch (f) | |
1257 | { | |
1258 | case FLG_MACROVARPREFIX: | |
1259 | case FLG_TAGPREFIX: | |
1260 | case FLG_ENUMPREFIX: | |
1261 | case FLG_FILESTATICPREFIX: | |
1262 | case FLG_GLOBPREFIX: | |
1263 | case FLG_TYPEPREFIX: | |
1264 | case FLG_EXTERNALPREFIX: | |
1265 | case FLG_LOCALPREFIX: | |
1266 | case FLG_UNCHECKEDMACROPREFIX: | |
1267 | case FLG_CONSTPREFIX: | |
1268 | case FLG_ITERPREFIX: | |
1269 | case FLG_DECLPARAMPREFIX: | |
1270 | return TRUE; | |
1271 | default: | |
1272 | return FALSE; | |
1273 | } | |
1274 | } | |
1275 |