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1 | /* Multiple source language support for GDB. | |
2 | ||
3 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, | |
4 | 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. | |
5 | ||
6 | Contributed by the Department of Computer Science at the State University | |
7 | of New York at Buffalo. | |
8 | ||
9 | This file is part of GDB. | |
10 | ||
11 | This program is free software; you can redistribute it and/or modify | |
12 | it under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2 of the License, or | |
14 | (at your option) any later version. | |
15 | ||
16 | This program is distributed in the hope that it will be useful, | |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
20 | ||
21 | You should have received a copy of the GNU General Public License | |
22 | along with this program; if not, write to the Free Software | |
23 | Foundation, Inc., 59 Temple Place - Suite 330, | |
24 | Boston, MA 02111-1307, USA. */ | |
25 | ||
26 | /* This file contains functions that return things that are specific | |
27 | to languages. Each function should examine current_language if necessary, | |
28 | and return the appropriate result. */ | |
29 | ||
30 | /* FIXME: Most of these would be better organized as macros which | |
31 | return data out of a "language-specific" struct pointer that is set | |
32 | whenever the working language changes. That would be a lot faster. */ | |
33 | ||
34 | #include "defs.h" | |
35 | #include <ctype.h> | |
36 | #include "gdb_string.h" | |
37 | ||
38 | #include "symtab.h" | |
39 | #include "gdbtypes.h" | |
40 | #include "value.h" | |
41 | #include "gdbcmd.h" | |
42 | #include "expression.h" | |
43 | #include "language.h" | |
44 | #include "target.h" | |
45 | #include "parser-defs.h" | |
46 | #include "jv-lang.h" | |
47 | #include "demangle.h" | |
48 | ||
49 | extern void _initialize_language (void); | |
50 | ||
51 | static void show_language_command (char *, int); | |
52 | ||
53 | static void set_language_command (char *, int); | |
54 | ||
55 | static void show_type_command (char *, int); | |
56 | ||
57 | static void set_type_command (char *, int); | |
58 | ||
59 | static void show_range_command (char *, int); | |
60 | ||
61 | static void set_range_command (char *, int); | |
62 | ||
63 | static void show_case_command (char *, int); | |
64 | ||
65 | static void set_case_command (char *, int); | |
66 | ||
67 | static void set_case_str (void); | |
68 | ||
69 | static void set_range_str (void); | |
70 | ||
71 | static void set_type_str (void); | |
72 | ||
73 | static void set_lang_str (void); | |
74 | ||
75 | static void unk_lang_error (char *); | |
76 | ||
77 | static int unk_lang_parser (void); | |
78 | ||
79 | static void show_check (char *, int); | |
80 | ||
81 | static void set_check (char *, int); | |
82 | ||
83 | static void set_type_range_case (void); | |
84 | ||
85 | static void unk_lang_emit_char (int c, struct ui_file *stream, int quoter); | |
86 | ||
87 | static void unk_lang_printchar (int c, struct ui_file *stream); | |
88 | ||
89 | static struct type *unk_lang_create_fundamental_type (struct objfile *, int); | |
90 | ||
91 | static void unk_lang_print_type (struct type *, char *, struct ui_file *, | |
92 | int, int); | |
93 | ||
94 | static int unk_lang_value_print (struct value *, struct ui_file *, int, enum val_prettyprint); | |
95 | ||
96 | static CORE_ADDR unk_lang_trampoline (CORE_ADDR pc); | |
97 | ||
98 | /* Forward declaration */ | |
99 | extern const struct language_defn unknown_language_defn; | |
100 | ||
101 | /* The current (default at startup) state of type and range checking. | |
102 | (If the modes are set to "auto", though, these are changed based | |
103 | on the default language at startup, and then again based on the | |
104 | language of the first source file. */ | |
105 | ||
106 | enum range_mode range_mode = range_mode_auto; | |
107 | enum range_check range_check = range_check_off; | |
108 | enum type_mode type_mode = type_mode_auto; | |
109 | enum type_check type_check = type_check_off; | |
110 | enum case_mode case_mode = case_mode_auto; | |
111 | enum case_sensitivity case_sensitivity = case_sensitive_on; | |
112 | ||
113 | /* The current language and language_mode (see language.h) */ | |
114 | ||
115 | const struct language_defn *current_language = &unknown_language_defn; | |
116 | enum language_mode language_mode = language_mode_auto; | |
117 | ||
118 | /* The language that the user expects to be typing in (the language | |
119 | of main(), or the last language we notified them about, or C). */ | |
120 | ||
121 | const struct language_defn *expected_language; | |
122 | ||
123 | /* The list of supported languages. The list itself is malloc'd. */ | |
124 | ||
125 | static const struct language_defn **languages; | |
126 | static unsigned languages_size; | |
127 | static unsigned languages_allocsize; | |
128 | #define DEFAULT_ALLOCSIZE 4 | |
129 | ||
130 | /* The "set language/type/range" commands all put stuff in these | |
131 | buffers. This is to make them work as set/show commands. The | |
132 | user's string is copied here, then the set_* commands look at | |
133 | them and update them to something that looks nice when it is | |
134 | printed out. */ | |
135 | ||
136 | static char *language; | |
137 | static char *type; | |
138 | static char *range; | |
139 | static char *case_sensitive; | |
140 | ||
141 | /* Warning issued when current_language and the language of the current | |
142 | frame do not match. */ | |
143 | char lang_frame_mismatch_warn[] = | |
144 | "Warning: the current language does not match this frame."; | |
145 | \f | |
146 | /* This page contains the functions corresponding to GDB commands | |
147 | and their helpers. */ | |
148 | ||
149 | /* Show command. Display a warning if the language set | |
150 | does not match the frame. */ | |
151 | static void | |
152 | show_language_command (char *ignore, int from_tty) | |
153 | { | |
154 | enum language flang; /* The language of the current frame */ | |
155 | ||
156 | flang = get_frame_language (); | |
157 | if (flang != language_unknown && | |
158 | language_mode == language_mode_manual && | |
159 | current_language->la_language != flang) | |
160 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
161 | } | |
162 | ||
163 | /* Set command. Change the current working language. */ | |
164 | static void | |
165 | set_language_command (char *ignore, int from_tty) | |
166 | { | |
167 | int i; | |
168 | enum language flang; | |
169 | char *err_lang; | |
170 | ||
171 | if (!language || !language[0]) | |
172 | { | |
173 | printf_unfiltered (_("\ | |
174 | The currently understood settings are:\n\n\ | |
175 | local or auto Automatic setting based on source file\n")); | |
176 | ||
177 | for (i = 0; i < languages_size; ++i) | |
178 | { | |
179 | /* Already dealt with these above. */ | |
180 | if (languages[i]->la_language == language_unknown | |
181 | || languages[i]->la_language == language_auto) | |
182 | continue; | |
183 | ||
184 | /* FIXME: i18n: for now assume that the human-readable name | |
185 | is just a capitalization of the internal name. */ | |
186 | printf_unfiltered ("%-16s Use the %c%s language\n", | |
187 | languages[i]->la_name, | |
188 | /* Capitalize first letter of language | |
189 | name. */ | |
190 | toupper (languages[i]->la_name[0]), | |
191 | languages[i]->la_name + 1); | |
192 | } | |
193 | /* Restore the silly string. */ | |
194 | set_language (current_language->la_language); | |
195 | return; | |
196 | } | |
197 | ||
198 | /* Search the list of languages for a match. */ | |
199 | for (i = 0; i < languages_size; i++) | |
200 | { | |
201 | if (strcmp (languages[i]->la_name, language) == 0) | |
202 | { | |
203 | /* Found it! Go into manual mode, and use this language. */ | |
204 | if (languages[i]->la_language == language_auto) | |
205 | { | |
206 | /* Enter auto mode. Set to the current frame's language, if known. */ | |
207 | language_mode = language_mode_auto; | |
208 | flang = get_frame_language (); | |
209 | if (flang != language_unknown) | |
210 | set_language (flang); | |
211 | expected_language = current_language; | |
212 | return; | |
213 | } | |
214 | else | |
215 | { | |
216 | /* Enter manual mode. Set the specified language. */ | |
217 | language_mode = language_mode_manual; | |
218 | current_language = languages[i]; | |
219 | set_type_range_case (); | |
220 | set_lang_str (); | |
221 | expected_language = current_language; | |
222 | return; | |
223 | } | |
224 | } | |
225 | } | |
226 | ||
227 | /* Reset the language (esp. the global string "language") to the | |
228 | correct values. */ | |
229 | err_lang = savestring (language, strlen (language)); | |
230 | make_cleanup (xfree, err_lang); /* Free it after error */ | |
231 | set_language (current_language->la_language); | |
232 | error (_("Unknown language `%s'."), err_lang); | |
233 | } | |
234 | ||
235 | /* Show command. Display a warning if the type setting does | |
236 | not match the current language. */ | |
237 | static void | |
238 | show_type_command (char *ignore, int from_tty) | |
239 | { | |
240 | if (type_check != current_language->la_type_check) | |
241 | printf_unfiltered ( | |
242 | "Warning: the current type check setting does not match the language.\n"); | |
243 | } | |
244 | ||
245 | /* Set command. Change the setting for type checking. */ | |
246 | static void | |
247 | set_type_command (char *ignore, int from_tty) | |
248 | { | |
249 | if (strcmp (type, "on") == 0) | |
250 | { | |
251 | type_check = type_check_on; | |
252 | type_mode = type_mode_manual; | |
253 | } | |
254 | else if (strcmp (type, "warn") == 0) | |
255 | { | |
256 | type_check = type_check_warn; | |
257 | type_mode = type_mode_manual; | |
258 | } | |
259 | else if (strcmp (type, "off") == 0) | |
260 | { | |
261 | type_check = type_check_off; | |
262 | type_mode = type_mode_manual; | |
263 | } | |
264 | else if (strcmp (type, "auto") == 0) | |
265 | { | |
266 | type_mode = type_mode_auto; | |
267 | set_type_range_case (); | |
268 | /* Avoid hitting the set_type_str call below. We | |
269 | did it in set_type_range_case. */ | |
270 | return; | |
271 | } | |
272 | else | |
273 | { | |
274 | warning (_("Unrecognized type check setting: \"%s\""), type); | |
275 | } | |
276 | set_type_str (); | |
277 | show_type_command ((char *) NULL, from_tty); | |
278 | } | |
279 | ||
280 | /* Show command. Display a warning if the range setting does | |
281 | not match the current language. */ | |
282 | static void | |
283 | show_range_command (char *ignore, int from_tty) | |
284 | { | |
285 | ||
286 | if (range_check != current_language->la_range_check) | |
287 | printf_unfiltered ( | |
288 | "Warning: the current range check setting does not match the language.\n"); | |
289 | } | |
290 | ||
291 | /* Set command. Change the setting for range checking. */ | |
292 | static void | |
293 | set_range_command (char *ignore, int from_tty) | |
294 | { | |
295 | if (strcmp (range, "on") == 0) | |
296 | { | |
297 | range_check = range_check_on; | |
298 | range_mode = range_mode_manual; | |
299 | } | |
300 | else if (strcmp (range, "warn") == 0) | |
301 | { | |
302 | range_check = range_check_warn; | |
303 | range_mode = range_mode_manual; | |
304 | } | |
305 | else if (strcmp (range, "off") == 0) | |
306 | { | |
307 | range_check = range_check_off; | |
308 | range_mode = range_mode_manual; | |
309 | } | |
310 | else if (strcmp (range, "auto") == 0) | |
311 | { | |
312 | range_mode = range_mode_auto; | |
313 | set_type_range_case (); | |
314 | /* Avoid hitting the set_range_str call below. We | |
315 | did it in set_type_range_case. */ | |
316 | return; | |
317 | } | |
318 | else | |
319 | { | |
320 | warning (_("Unrecognized range check setting: \"%s\""), range); | |
321 | } | |
322 | set_range_str (); | |
323 | show_range_command ((char *) 0, from_tty); | |
324 | } | |
325 | ||
326 | /* Show command. Display a warning if the case sensitivity setting does | |
327 | not match the current language. */ | |
328 | static void | |
329 | show_case_command (char *ignore, int from_tty) | |
330 | { | |
331 | if (case_sensitivity != current_language->la_case_sensitivity) | |
332 | printf_unfiltered( | |
333 | "Warning: the current case sensitivity setting does not match the language.\n"); | |
334 | } | |
335 | ||
336 | /* Set command. Change the setting for case sensitivity. */ | |
337 | static void | |
338 | set_case_command (char *ignore, int from_tty) | |
339 | { | |
340 | if (DEPRECATED_STREQ (case_sensitive, "on")) | |
341 | { | |
342 | case_sensitivity = case_sensitive_on; | |
343 | case_mode = case_mode_manual; | |
344 | } | |
345 | else if (DEPRECATED_STREQ (case_sensitive, "off")) | |
346 | { | |
347 | case_sensitivity = case_sensitive_off; | |
348 | case_mode = case_mode_manual; | |
349 | } | |
350 | else if (DEPRECATED_STREQ (case_sensitive, "auto")) | |
351 | { | |
352 | case_mode = case_mode_auto; | |
353 | set_type_range_case (); | |
354 | /* Avoid hitting the set_case_str call below. We | |
355 | did it in set_type_range_case. */ | |
356 | return; | |
357 | } | |
358 | else | |
359 | { | |
360 | warning (_("Unrecognized case-sensitive setting: \"%s\""), case_sensitive); | |
361 | } | |
362 | set_case_str(); | |
363 | show_case_command ((char *) NULL, from_tty); | |
364 | } | |
365 | ||
366 | /* Set the status of range and type checking and case sensitivity based on | |
367 | the current modes and the current language. | |
368 | If SHOW is non-zero, then print out the current language, | |
369 | type and range checking status. */ | |
370 | static void | |
371 | set_type_range_case (void) | |
372 | { | |
373 | ||
374 | if (range_mode == range_mode_auto) | |
375 | range_check = current_language->la_range_check; | |
376 | ||
377 | if (type_mode == type_mode_auto) | |
378 | type_check = current_language->la_type_check; | |
379 | ||
380 | if (case_mode == case_mode_auto) | |
381 | case_sensitivity = current_language->la_case_sensitivity; | |
382 | ||
383 | set_type_str (); | |
384 | set_range_str (); | |
385 | set_case_str (); | |
386 | } | |
387 | ||
388 | /* Set current language to (enum language) LANG. Returns previous language. */ | |
389 | ||
390 | enum language | |
391 | set_language (enum language lang) | |
392 | { | |
393 | int i; | |
394 | enum language prev_language; | |
395 | ||
396 | prev_language = current_language->la_language; | |
397 | ||
398 | for (i = 0; i < languages_size; i++) | |
399 | { | |
400 | if (languages[i]->la_language == lang) | |
401 | { | |
402 | current_language = languages[i]; | |
403 | set_type_range_case (); | |
404 | set_lang_str (); | |
405 | break; | |
406 | } | |
407 | } | |
408 | ||
409 | return prev_language; | |
410 | } | |
411 | \f | |
412 | /* This page contains functions that update the global vars | |
413 | language, type and range. */ | |
414 | static void | |
415 | set_lang_str (void) | |
416 | { | |
417 | char *prefix = ""; | |
418 | ||
419 | if (language) | |
420 | xfree (language); | |
421 | if (language_mode == language_mode_auto) | |
422 | prefix = "auto; currently "; | |
423 | ||
424 | language = concat (prefix, current_language->la_name, NULL); | |
425 | } | |
426 | ||
427 | static void | |
428 | set_type_str (void) | |
429 | { | |
430 | char *tmp = NULL, *prefix = ""; | |
431 | ||
432 | if (type) | |
433 | xfree (type); | |
434 | if (type_mode == type_mode_auto) | |
435 | prefix = "auto; currently "; | |
436 | ||
437 | switch (type_check) | |
438 | { | |
439 | case type_check_on: | |
440 | tmp = "on"; | |
441 | break; | |
442 | case type_check_off: | |
443 | tmp = "off"; | |
444 | break; | |
445 | case type_check_warn: | |
446 | tmp = "warn"; | |
447 | break; | |
448 | default: | |
449 | error (_("Unrecognized type check setting.")); | |
450 | } | |
451 | ||
452 | type = concat (prefix, tmp, NULL); | |
453 | } | |
454 | ||
455 | static void | |
456 | set_range_str (void) | |
457 | { | |
458 | char *tmp, *pref = ""; | |
459 | ||
460 | if (range_mode == range_mode_auto) | |
461 | pref = "auto; currently "; | |
462 | ||
463 | switch (range_check) | |
464 | { | |
465 | case range_check_on: | |
466 | tmp = "on"; | |
467 | break; | |
468 | case range_check_off: | |
469 | tmp = "off"; | |
470 | break; | |
471 | case range_check_warn: | |
472 | tmp = "warn"; | |
473 | break; | |
474 | default: | |
475 | error (_("Unrecognized range check setting.")); | |
476 | } | |
477 | ||
478 | if (range) | |
479 | xfree (range); | |
480 | range = concat (pref, tmp, NULL); | |
481 | } | |
482 | ||
483 | static void | |
484 | set_case_str (void) | |
485 | { | |
486 | char *tmp = NULL, *prefix = ""; | |
487 | ||
488 | if (case_mode==case_mode_auto) | |
489 | prefix = "auto; currently "; | |
490 | ||
491 | switch (case_sensitivity) | |
492 | { | |
493 | case case_sensitive_on: | |
494 | tmp = "on"; | |
495 | break; | |
496 | case case_sensitive_off: | |
497 | tmp = "off"; | |
498 | break; | |
499 | default: | |
500 | error (_("Unrecognized case-sensitive setting.")); | |
501 | } | |
502 | ||
503 | xfree (case_sensitive); | |
504 | case_sensitive = concat (prefix, tmp, NULL); | |
505 | } | |
506 | ||
507 | /* Print out the current language settings: language, range and | |
508 | type checking. If QUIETLY, print only what has changed. */ | |
509 | ||
510 | void | |
511 | language_info (int quietly) | |
512 | { | |
513 | if (quietly && expected_language == current_language) | |
514 | return; | |
515 | ||
516 | expected_language = current_language; | |
517 | printf_unfiltered (_("Current language: %s\n"), language); | |
518 | show_language_command ((char *) 0, 1); | |
519 | ||
520 | if (!quietly) | |
521 | { | |
522 | printf_unfiltered (_("Type checking: %s\n"), type); | |
523 | show_type_command ((char *) 0, 1); | |
524 | printf_unfiltered (_("Range checking: %s\n"), range); | |
525 | show_range_command ((char *) 0, 1); | |
526 | printf_unfiltered (_("Case sensitivity: %s\n"), case_sensitive); | |
527 | show_case_command ((char *) 0, 1); | |
528 | } | |
529 | } | |
530 | \f | |
531 | /* Return the result of a binary operation. */ | |
532 | ||
533 | #if 0 /* Currently unused */ | |
534 | ||
535 | struct type * | |
536 | binop_result_type (struct value *v1, struct value *v2) | |
537 | { | |
538 | int size, uns; | |
539 | struct type *t1 = check_typedef (VALUE_TYPE (v1)); | |
540 | struct type *t2 = check_typedef (VALUE_TYPE (v2)); | |
541 | ||
542 | int l1 = TYPE_LENGTH (t1); | |
543 | int l2 = TYPE_LENGTH (t2); | |
544 | ||
545 | switch (current_language->la_language) | |
546 | { | |
547 | case language_c: | |
548 | case language_cplus: | |
549 | case language_objc: | |
550 | if (TYPE_CODE (t1) == TYPE_CODE_FLT) | |
551 | return TYPE_CODE (t2) == TYPE_CODE_FLT && l2 > l1 ? | |
552 | VALUE_TYPE (v2) : VALUE_TYPE (v1); | |
553 | else if (TYPE_CODE (t2) == TYPE_CODE_FLT) | |
554 | return TYPE_CODE (t1) == TYPE_CODE_FLT && l1 > l2 ? | |
555 | VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
556 | else if (TYPE_UNSIGNED (t1) && l1 > l2) | |
557 | return VALUE_TYPE (v1); | |
558 | else if (TYPE_UNSIGNED (t2) && l2 > l1) | |
559 | return VALUE_TYPE (v2); | |
560 | else /* Both are signed. Result is the longer type */ | |
561 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
562 | break; | |
563 | case language_m2: | |
564 | /* If we are doing type-checking, l1 should equal l2, so this is | |
565 | not needed. */ | |
566 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
567 | break; | |
568 | } | |
569 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); | |
570 | return (struct type *) 0; /* For lint */ | |
571 | } | |
572 | ||
573 | #endif /* 0 */ | |
574 | #if 0 | |
575 | /* This page contains functions that are used in type/range checking. | |
576 | They all return zero if the type/range check fails. | |
577 | ||
578 | It is hoped that these will make extending GDB to parse different | |
579 | languages a little easier. These are primarily used in eval.c when | |
580 | evaluating expressions and making sure that their types are correct. | |
581 | Instead of having a mess of conjucted/disjuncted expressions in an "if", | |
582 | the ideas of type can be wrapped up in the following functions. | |
583 | ||
584 | Note that some of them are not currently dependent upon which language | |
585 | is currently being parsed. For example, floats are the same in | |
586 | C and Modula-2 (ie. the only floating point type has TYPE_CODE of | |
587 | TYPE_CODE_FLT), while booleans are different. */ | |
588 | ||
589 | /* Returns non-zero if its argument is a simple type. This is the same for | |
590 | both Modula-2 and for C. In the C case, TYPE_CODE_CHAR will never occur, | |
591 | and thus will never cause the failure of the test. */ | |
592 | int | |
593 | simple_type (struct type *type) | |
594 | { | |
595 | CHECK_TYPEDEF (type); | |
596 | switch (TYPE_CODE (type)) | |
597 | { | |
598 | case TYPE_CODE_INT: | |
599 | case TYPE_CODE_CHAR: | |
600 | case TYPE_CODE_ENUM: | |
601 | case TYPE_CODE_FLT: | |
602 | case TYPE_CODE_RANGE: | |
603 | case TYPE_CODE_BOOL: | |
604 | return 1; | |
605 | ||
606 | default: | |
607 | return 0; | |
608 | } | |
609 | } | |
610 | ||
611 | /* Returns non-zero if its argument is of an ordered type. | |
612 | An ordered type is one in which the elements can be tested for the | |
613 | properties of "greater than", "less than", etc, or for which the | |
614 | operations "increment" or "decrement" make sense. */ | |
615 | int | |
616 | ordered_type (struct type *type) | |
617 | { | |
618 | CHECK_TYPEDEF (type); | |
619 | switch (TYPE_CODE (type)) | |
620 | { | |
621 | case TYPE_CODE_INT: | |
622 | case TYPE_CODE_CHAR: | |
623 | case TYPE_CODE_ENUM: | |
624 | case TYPE_CODE_FLT: | |
625 | case TYPE_CODE_RANGE: | |
626 | return 1; | |
627 | ||
628 | default: | |
629 | return 0; | |
630 | } | |
631 | } | |
632 | ||
633 | /* Returns non-zero if the two types are the same */ | |
634 | int | |
635 | same_type (struct type *arg1, struct type *arg2) | |
636 | { | |
637 | CHECK_TYPEDEF (type); | |
638 | if (structured_type (arg1) ? !structured_type (arg2) : structured_type (arg2)) | |
639 | /* One is structured and one isn't */ | |
640 | return 0; | |
641 | else if (structured_type (arg1) && structured_type (arg2)) | |
642 | return arg1 == arg2; | |
643 | else if (numeric_type (arg1) && numeric_type (arg2)) | |
644 | return (TYPE_CODE (arg2) == TYPE_CODE (arg1)) && | |
645 | (TYPE_UNSIGNED (arg1) == TYPE_UNSIGNED (arg2)) | |
646 | ? 1 : 0; | |
647 | else | |
648 | return arg1 == arg2; | |
649 | } | |
650 | ||
651 | /* Returns non-zero if the type is integral */ | |
652 | int | |
653 | integral_type (struct type *type) | |
654 | { | |
655 | CHECK_TYPEDEF (type); | |
656 | switch (current_language->la_language) | |
657 | { | |
658 | case language_c: | |
659 | case language_cplus: | |
660 | case language_objc: | |
661 | return (TYPE_CODE (type) != TYPE_CODE_INT) && | |
662 | (TYPE_CODE (type) != TYPE_CODE_ENUM) ? 0 : 1; | |
663 | case language_m2: | |
664 | case language_pascal: | |
665 | return TYPE_CODE (type) != TYPE_CODE_INT ? 0 : 1; | |
666 | default: | |
667 | error (_("Language not supported.")); | |
668 | } | |
669 | } | |
670 | ||
671 | /* Returns non-zero if the value is numeric */ | |
672 | int | |
673 | numeric_type (struct type *type) | |
674 | { | |
675 | CHECK_TYPEDEF (type); | |
676 | switch (TYPE_CODE (type)) | |
677 | { | |
678 | case TYPE_CODE_INT: | |
679 | case TYPE_CODE_FLT: | |
680 | return 1; | |
681 | ||
682 | default: | |
683 | return 0; | |
684 | } | |
685 | } | |
686 | ||
687 | /* Returns non-zero if the value is a character type */ | |
688 | int | |
689 | character_type (struct type *type) | |
690 | { | |
691 | CHECK_TYPEDEF (type); | |
692 | switch (current_language->la_language) | |
693 | { | |
694 | case language_m2: | |
695 | case language_pascal: | |
696 | return TYPE_CODE (type) != TYPE_CODE_CHAR ? 0 : 1; | |
697 | ||
698 | case language_c: | |
699 | case language_cplus: | |
700 | case language_objc: | |
701 | return (TYPE_CODE (type) == TYPE_CODE_INT) && | |
702 | TYPE_LENGTH (type) == sizeof (char) | |
703 | ? 1 : 0; | |
704 | default: | |
705 | return (0); | |
706 | } | |
707 | } | |
708 | ||
709 | /* Returns non-zero if the value is a string type */ | |
710 | int | |
711 | string_type (struct type *type) | |
712 | { | |
713 | CHECK_TYPEDEF (type); | |
714 | switch (current_language->la_language) | |
715 | { | |
716 | case language_m2: | |
717 | case language_pascal: | |
718 | return TYPE_CODE (type) != TYPE_CODE_STRING ? 0 : 1; | |
719 | ||
720 | case language_c: | |
721 | case language_cplus: | |
722 | case language_objc: | |
723 | /* C does not have distinct string type. */ | |
724 | return (0); | |
725 | default: | |
726 | return (0); | |
727 | } | |
728 | } | |
729 | ||
730 | /* Returns non-zero if the value is a boolean type */ | |
731 | int | |
732 | boolean_type (struct type *type) | |
733 | { | |
734 | CHECK_TYPEDEF (type); | |
735 | if (TYPE_CODE (type) == TYPE_CODE_BOOL) | |
736 | return 1; | |
737 | switch (current_language->la_language) | |
738 | { | |
739 | case language_c: | |
740 | case language_cplus: | |
741 | case language_objc: | |
742 | /* Might be more cleanly handled by having a | |
743 | TYPE_CODE_INT_NOT_BOOL for (the deleted) CHILL and such | |
744 | languages, or a TYPE_CODE_INT_OR_BOOL for C. */ | |
745 | if (TYPE_CODE (type) == TYPE_CODE_INT) | |
746 | return 1; | |
747 | default: | |
748 | break; | |
749 | } | |
750 | return 0; | |
751 | } | |
752 | ||
753 | /* Returns non-zero if the value is a floating-point type */ | |
754 | int | |
755 | float_type (struct type *type) | |
756 | { | |
757 | CHECK_TYPEDEF (type); | |
758 | return TYPE_CODE (type) == TYPE_CODE_FLT; | |
759 | } | |
760 | ||
761 | /* Returns non-zero if the value is a pointer type */ | |
762 | int | |
763 | pointer_type (struct type *type) | |
764 | { | |
765 | return TYPE_CODE (type) == TYPE_CODE_PTR || | |
766 | TYPE_CODE (type) == TYPE_CODE_REF; | |
767 | } | |
768 | ||
769 | /* Returns non-zero if the value is a structured type */ | |
770 | int | |
771 | structured_type (struct type *type) | |
772 | { | |
773 | CHECK_TYPEDEF (type); | |
774 | switch (current_language->la_language) | |
775 | { | |
776 | case language_c: | |
777 | case language_cplus: | |
778 | case language_objc: | |
779 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || | |
780 | (TYPE_CODE (type) == TYPE_CODE_UNION) || | |
781 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
782 | case language_pascal: | |
783 | return (TYPE_CODE(type) == TYPE_CODE_STRUCT) || | |
784 | (TYPE_CODE(type) == TYPE_CODE_UNION) || | |
785 | (TYPE_CODE(type) == TYPE_CODE_SET) || | |
786 | (TYPE_CODE(type) == TYPE_CODE_ARRAY); | |
787 | case language_m2: | |
788 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || | |
789 | (TYPE_CODE (type) == TYPE_CODE_SET) || | |
790 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
791 | default: | |
792 | return (0); | |
793 | } | |
794 | } | |
795 | #endif | |
796 | \f | |
797 | struct type * | |
798 | lang_bool_type (void) | |
799 | { | |
800 | struct symbol *sym; | |
801 | struct type *type; | |
802 | switch (current_language->la_language) | |
803 | { | |
804 | case language_fortran: | |
805 | sym = lookup_symbol ("logical", NULL, VAR_DOMAIN, NULL, NULL); | |
806 | if (sym) | |
807 | { | |
808 | type = SYMBOL_TYPE (sym); | |
809 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
810 | return type; | |
811 | } | |
812 | return builtin_type_f_logical_s2; | |
813 | case language_cplus: | |
814 | case language_pascal: | |
815 | if (current_language->la_language==language_cplus) | |
816 | {sym = lookup_symbol ("bool", NULL, VAR_DOMAIN, NULL, NULL);} | |
817 | else | |
818 | {sym = lookup_symbol ("boolean", NULL, VAR_DOMAIN, NULL, NULL);} | |
819 | if (sym) | |
820 | { | |
821 | type = SYMBOL_TYPE (sym); | |
822 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
823 | return type; | |
824 | } | |
825 | return builtin_type_bool; | |
826 | case language_java: | |
827 | sym = lookup_symbol ("boolean", NULL, VAR_DOMAIN, NULL, NULL); | |
828 | if (sym) | |
829 | { | |
830 | type = SYMBOL_TYPE (sym); | |
831 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
832 | return type; | |
833 | } | |
834 | return java_boolean_type; | |
835 | default: | |
836 | return builtin_type_int; | |
837 | } | |
838 | } | |
839 | \f | |
840 | /* This page contains functions that return info about | |
841 | (struct value) values used in GDB. */ | |
842 | ||
843 | /* Returns non-zero if the value VAL represents a true value. */ | |
844 | int | |
845 | value_true (struct value *val) | |
846 | { | |
847 | /* It is possible that we should have some sort of error if a non-boolean | |
848 | value is used in this context. Possibly dependent on some kind of | |
849 | "boolean-checking" option like range checking. But it should probably | |
850 | not depend on the language except insofar as is necessary to identify | |
851 | a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean | |
852 | should be an error, probably). */ | |
853 | return !value_logical_not (val); | |
854 | } | |
855 | \f | |
856 | /* This page contains functions for the printing out of | |
857 | error messages that occur during type- and range- | |
858 | checking. */ | |
859 | ||
860 | /* These are called when a language fails a type- or range-check. The | |
861 | first argument should be a printf()-style format string, and the | |
862 | rest of the arguments should be its arguments. If | |
863 | [type|range]_check is [type|range]_check_on, an error is printed; | |
864 | if [type|range]_check_warn, a warning; otherwise just the | |
865 | message. */ | |
866 | ||
867 | void | |
868 | type_error (const char *string,...) | |
869 | { | |
870 | va_list args; | |
871 | va_start (args, string); | |
872 | ||
873 | switch (type_check) | |
874 | { | |
875 | case type_check_warn: | |
876 | vwarning (string, args); | |
877 | break; | |
878 | case type_check_on: | |
879 | verror (string, args); | |
880 | break; | |
881 | case type_check_off: | |
882 | /* FIXME: cagney/2002-01-30: Should this function print anything | |
883 | when type error is off? */ | |
884 | vfprintf_filtered (gdb_stderr, string, args); | |
885 | fprintf_filtered (gdb_stderr, "\n"); | |
886 | break; | |
887 | default: | |
888 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
889 | } | |
890 | va_end (args); | |
891 | } | |
892 | ||
893 | void | |
894 | range_error (const char *string,...) | |
895 | { | |
896 | va_list args; | |
897 | va_start (args, string); | |
898 | ||
899 | switch (range_check) | |
900 | { | |
901 | case range_check_warn: | |
902 | vwarning (string, args); | |
903 | break; | |
904 | case range_check_on: | |
905 | verror (string, args); | |
906 | break; | |
907 | case range_check_off: | |
908 | /* FIXME: cagney/2002-01-30: Should this function print anything | |
909 | when range error is off? */ | |
910 | vfprintf_filtered (gdb_stderr, string, args); | |
911 | fprintf_filtered (gdb_stderr, "\n"); | |
912 | break; | |
913 | default: | |
914 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
915 | } | |
916 | va_end (args); | |
917 | } | |
918 | \f | |
919 | ||
920 | /* This page contains miscellaneous functions */ | |
921 | ||
922 | /* Return the language enum for a given language string. */ | |
923 | ||
924 | enum language | |
925 | language_enum (char *str) | |
926 | { | |
927 | int i; | |
928 | ||
929 | for (i = 0; i < languages_size; i++) | |
930 | if (DEPRECATED_STREQ (languages[i]->la_name, str)) | |
931 | return languages[i]->la_language; | |
932 | ||
933 | return language_unknown; | |
934 | } | |
935 | ||
936 | /* Return the language struct for a given language enum. */ | |
937 | ||
938 | const struct language_defn * | |
939 | language_def (enum language lang) | |
940 | { | |
941 | int i; | |
942 | ||
943 | for (i = 0; i < languages_size; i++) | |
944 | { | |
945 | if (languages[i]->la_language == lang) | |
946 | { | |
947 | return languages[i]; | |
948 | } | |
949 | } | |
950 | return NULL; | |
951 | } | |
952 | ||
953 | /* Return the language as a string */ | |
954 | char * | |
955 | language_str (enum language lang) | |
956 | { | |
957 | int i; | |
958 | ||
959 | for (i = 0; i < languages_size; i++) | |
960 | { | |
961 | if (languages[i]->la_language == lang) | |
962 | { | |
963 | return languages[i]->la_name; | |
964 | } | |
965 | } | |
966 | return "Unknown"; | |
967 | } | |
968 | ||
969 | static void | |
970 | set_check (char *ignore, int from_tty) | |
971 | { | |
972 | printf_unfiltered ( | |
973 | "\"set check\" must be followed by the name of a check subcommand.\n"); | |
974 | help_list (setchecklist, "set check ", -1, gdb_stdout); | |
975 | } | |
976 | ||
977 | static void | |
978 | show_check (char *ignore, int from_tty) | |
979 | { | |
980 | cmd_show_list (showchecklist, from_tty, ""); | |
981 | } | |
982 | \f | |
983 | /* Add a language to the set of known languages. */ | |
984 | ||
985 | void | |
986 | add_language (const struct language_defn *lang) | |
987 | { | |
988 | if (lang->la_magic != LANG_MAGIC) | |
989 | { | |
990 | fprintf_unfiltered (gdb_stderr, "Magic number of %s language struct wrong\n", | |
991 | lang->la_name); | |
992 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); | |
993 | } | |
994 | ||
995 | if (!languages) | |
996 | { | |
997 | languages_allocsize = DEFAULT_ALLOCSIZE; | |
998 | languages = (const struct language_defn **) xmalloc | |
999 | (languages_allocsize * sizeof (*languages)); | |
1000 | } | |
1001 | if (languages_size >= languages_allocsize) | |
1002 | { | |
1003 | languages_allocsize *= 2; | |
1004 | languages = (const struct language_defn **) xrealloc ((char *) languages, | |
1005 | languages_allocsize * sizeof (*languages)); | |
1006 | } | |
1007 | languages[languages_size++] = lang; | |
1008 | } | |
1009 | ||
1010 | /* Iterate through all registered languages looking for and calling | |
1011 | any non-NULL struct language_defn.skip_trampoline() functions. | |
1012 | Return the result from the first that returns non-zero, or 0 if all | |
1013 | `fail'. */ | |
1014 | CORE_ADDR | |
1015 | skip_language_trampoline (CORE_ADDR pc) | |
1016 | { | |
1017 | int i; | |
1018 | ||
1019 | for (i = 0; i < languages_size; i++) | |
1020 | { | |
1021 | if (languages[i]->skip_trampoline) | |
1022 | { | |
1023 | CORE_ADDR real_pc = (languages[i]->skip_trampoline) (pc); | |
1024 | if (real_pc) | |
1025 | return real_pc; | |
1026 | } | |
1027 | } | |
1028 | ||
1029 | return 0; | |
1030 | } | |
1031 | ||
1032 | /* Return demangled language symbol, or NULL. | |
1033 | FIXME: Options are only useful for certain languages and ignored | |
1034 | by others, so it would be better to remove them here and have a | |
1035 | more flexible demangler for the languages that need it. | |
1036 | FIXME: Sometimes the demangler is invoked when we don't know the | |
1037 | language, so we can't use this everywhere. */ | |
1038 | char * | |
1039 | language_demangle (const struct language_defn *current_language, | |
1040 | const char *mangled, int options) | |
1041 | { | |
1042 | if (current_language != NULL && current_language->la_demangle) | |
1043 | return current_language->la_demangle (mangled, options); | |
1044 | return NULL; | |
1045 | } | |
1046 | ||
1047 | /* Return class name from physname or NULL. */ | |
1048 | char * | |
1049 | language_class_name_from_physname (const struct language_defn *current_language, | |
1050 | const char *physname) | |
1051 | { | |
1052 | if (current_language != NULL && current_language->la_class_name_from_physname) | |
1053 | return current_language->la_class_name_from_physname (physname); | |
1054 | return NULL; | |
1055 | } | |
1056 | ||
1057 | /* Return the default string containing the list of characters | |
1058 | delimiting words. This is a reasonable default value that | |
1059 | most languages should be able to use. */ | |
1060 | ||
1061 | char * | |
1062 | default_word_break_characters (void) | |
1063 | { | |
1064 | return " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-"; | |
1065 | } | |
1066 | ||
1067 | /* Define the language that is no language. */ | |
1068 | ||
1069 | static int | |
1070 | unk_lang_parser (void) | |
1071 | { | |
1072 | return 1; | |
1073 | } | |
1074 | ||
1075 | static void | |
1076 | unk_lang_error (char *msg) | |
1077 | { | |
1078 | error (_("Attempted to parse an expression with unknown language")); | |
1079 | } | |
1080 | ||
1081 | static void | |
1082 | unk_lang_emit_char (int c, struct ui_file *stream, int quoter) | |
1083 | { | |
1084 | error (_("internal error - unimplemented function unk_lang_emit_char called.")); | |
1085 | } | |
1086 | ||
1087 | static void | |
1088 | unk_lang_printchar (int c, struct ui_file *stream) | |
1089 | { | |
1090 | error (_("internal error - unimplemented function unk_lang_printchar called.")); | |
1091 | } | |
1092 | ||
1093 | static void | |
1094 | unk_lang_printstr (struct ui_file *stream, const bfd_byte *string, | |
1095 | unsigned int length, int width, int force_ellipses) | |
1096 | { | |
1097 | error (_("internal error - unimplemented function unk_lang_printstr called.")); | |
1098 | } | |
1099 | ||
1100 | static struct type * | |
1101 | unk_lang_create_fundamental_type (struct objfile *objfile, int typeid) | |
1102 | { | |
1103 | error (_("internal error - unimplemented function unk_lang_create_fundamental_type called.")); | |
1104 | } | |
1105 | ||
1106 | static void | |
1107 | unk_lang_print_type (struct type *type, char *varstring, struct ui_file *stream, | |
1108 | int show, int level) | |
1109 | { | |
1110 | error (_("internal error - unimplemented function unk_lang_print_type called.")); | |
1111 | } | |
1112 | ||
1113 | static int | |
1114 | unk_lang_val_print (struct type *type, const bfd_byte *valaddr, | |
1115 | int embedded_offset, CORE_ADDR address, | |
1116 | struct ui_file *stream, int format, | |
1117 | int deref_ref, int recurse, enum val_prettyprint pretty) | |
1118 | { | |
1119 | error (_("internal error - unimplemented function unk_lang_val_print called.")); | |
1120 | } | |
1121 | ||
1122 | static int | |
1123 | unk_lang_value_print (struct value *val, struct ui_file *stream, int format, | |
1124 | enum val_prettyprint pretty) | |
1125 | { | |
1126 | error (_("internal error - unimplemented function unk_lang_value_print called.")); | |
1127 | } | |
1128 | ||
1129 | static CORE_ADDR unk_lang_trampoline (CORE_ADDR pc) | |
1130 | { | |
1131 | return 0; | |
1132 | } | |
1133 | ||
1134 | /* Unknown languages just use the cplus demangler. */ | |
1135 | static char *unk_lang_demangle (const char *mangled, int options) | |
1136 | { | |
1137 | return cplus_demangle (mangled, options); | |
1138 | } | |
1139 | ||
1140 | static char *unk_lang_class_name (const char *mangled) | |
1141 | { | |
1142 | return NULL; | |
1143 | } | |
1144 | ||
1145 | static const struct op_print unk_op_print_tab[] = | |
1146 | { | |
1147 | {NULL, OP_NULL, PREC_NULL, 0} | |
1148 | }; | |
1149 | ||
1150 | static void | |
1151 | unknown_language_arch_info (struct gdbarch *gdbarch, | |
1152 | struct language_arch_info *lai) | |
1153 | { | |
1154 | lai->string_char_type = builtin_type (gdbarch)->builtin_char; | |
1155 | lai->primitive_type_vector = GDBARCH_OBSTACK_CALLOC (gdbarch, 1, | |
1156 | struct type *); | |
1157 | } | |
1158 | ||
1159 | const struct language_defn unknown_language_defn = | |
1160 | { | |
1161 | "unknown", | |
1162 | language_unknown, | |
1163 | NULL, | |
1164 | range_check_off, | |
1165 | type_check_off, | |
1166 | array_row_major, | |
1167 | case_sensitive_on, | |
1168 | &exp_descriptor_standard, | |
1169 | unk_lang_parser, | |
1170 | unk_lang_error, | |
1171 | null_post_parser, | |
1172 | unk_lang_printchar, /* Print character constant */ | |
1173 | unk_lang_printstr, | |
1174 | unk_lang_emit_char, | |
1175 | unk_lang_create_fundamental_type, | |
1176 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1177 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1178 | unk_lang_value_print, /* Print a top-level value */ | |
1179 | unk_lang_trampoline, /* Language specific skip_trampoline */ | |
1180 | value_of_this, /* value_of_this */ | |
1181 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ | |
1182 | basic_lookup_transparent_type,/* lookup_transparent_type */ | |
1183 | unk_lang_demangle, /* Language specific symbol demangler */ | |
1184 | unk_lang_class_name, /* Language specific class_name_from_physname */ | |
1185 | unk_op_print_tab, /* expression operators for printing */ | |
1186 | 1, /* c-style arrays */ | |
1187 | 0, /* String lower bound */ | |
1188 | NULL, | |
1189 | default_word_break_characters, | |
1190 | unknown_language_arch_info, /* la_language_arch_info. */ | |
1191 | LANG_MAGIC | |
1192 | }; | |
1193 | ||
1194 | /* These two structs define fake entries for the "local" and "auto" options. */ | |
1195 | const struct language_defn auto_language_defn = | |
1196 | { | |
1197 | "auto", | |
1198 | language_auto, | |
1199 | NULL, | |
1200 | range_check_off, | |
1201 | type_check_off, | |
1202 | array_row_major, | |
1203 | case_sensitive_on, | |
1204 | &exp_descriptor_standard, | |
1205 | unk_lang_parser, | |
1206 | unk_lang_error, | |
1207 | null_post_parser, | |
1208 | unk_lang_printchar, /* Print character constant */ | |
1209 | unk_lang_printstr, | |
1210 | unk_lang_emit_char, | |
1211 | unk_lang_create_fundamental_type, | |
1212 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1213 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1214 | unk_lang_value_print, /* Print a top-level value */ | |
1215 | unk_lang_trampoline, /* Language specific skip_trampoline */ | |
1216 | value_of_this, /* value_of_this */ | |
1217 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ | |
1218 | basic_lookup_transparent_type,/* lookup_transparent_type */ | |
1219 | unk_lang_demangle, /* Language specific symbol demangler */ | |
1220 | unk_lang_class_name, /* Language specific class_name_from_physname */ | |
1221 | unk_op_print_tab, /* expression operators for printing */ | |
1222 | 1, /* c-style arrays */ | |
1223 | 0, /* String lower bound */ | |
1224 | NULL, | |
1225 | default_word_break_characters, | |
1226 | unknown_language_arch_info, /* la_language_arch_info. */ | |
1227 | LANG_MAGIC | |
1228 | }; | |
1229 | ||
1230 | const struct language_defn local_language_defn = | |
1231 | { | |
1232 | "local", | |
1233 | language_auto, | |
1234 | NULL, | |
1235 | range_check_off, | |
1236 | type_check_off, | |
1237 | case_sensitive_on, | |
1238 | array_row_major, | |
1239 | &exp_descriptor_standard, | |
1240 | unk_lang_parser, | |
1241 | unk_lang_error, | |
1242 | null_post_parser, | |
1243 | unk_lang_printchar, /* Print character constant */ | |
1244 | unk_lang_printstr, | |
1245 | unk_lang_emit_char, | |
1246 | unk_lang_create_fundamental_type, | |
1247 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1248 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1249 | unk_lang_value_print, /* Print a top-level value */ | |
1250 | unk_lang_trampoline, /* Language specific skip_trampoline */ | |
1251 | value_of_this, /* value_of_this */ | |
1252 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ | |
1253 | basic_lookup_transparent_type,/* lookup_transparent_type */ | |
1254 | unk_lang_demangle, /* Language specific symbol demangler */ | |
1255 | unk_lang_class_name, /* Language specific class_name_from_physname */ | |
1256 | unk_op_print_tab, /* expression operators for printing */ | |
1257 | 1, /* c-style arrays */ | |
1258 | 0, /* String lower bound */ | |
1259 | NULL, | |
1260 | default_word_break_characters, | |
1261 | unknown_language_arch_info, /* la_language_arch_info. */ | |
1262 | LANG_MAGIC | |
1263 | }; | |
1264 | \f | |
1265 | /* Per-architecture language information. */ | |
1266 | ||
1267 | static struct gdbarch_data *language_gdbarch_data; | |
1268 | ||
1269 | struct language_gdbarch | |
1270 | { | |
1271 | /* A vector of per-language per-architecture info. Indexed by "enum | |
1272 | language". */ | |
1273 | struct language_arch_info arch_info[nr_languages]; | |
1274 | }; | |
1275 | ||
1276 | static void * | |
1277 | language_gdbarch_post_init (struct gdbarch *gdbarch) | |
1278 | { | |
1279 | struct language_gdbarch *l; | |
1280 | int i; | |
1281 | ||
1282 | l = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct language_gdbarch); | |
1283 | for (i = 0; i < languages_size; i++) | |
1284 | { | |
1285 | if (languages[i] != NULL | |
1286 | && languages[i]->la_language_arch_info != NULL) | |
1287 | languages[i]->la_language_arch_info | |
1288 | (gdbarch, l->arch_info + languages[i]->la_language); | |
1289 | } | |
1290 | return l; | |
1291 | } | |
1292 | ||
1293 | struct type * | |
1294 | language_string_char_type (const struct language_defn *la, | |
1295 | struct gdbarch *gdbarch) | |
1296 | { | |
1297 | struct language_gdbarch *ld = gdbarch_data (gdbarch, | |
1298 | language_gdbarch_data); | |
1299 | if (ld->arch_info[la->la_language].string_char_type != NULL) | |
1300 | return ld->arch_info[la->la_language].string_char_type; | |
1301 | else | |
1302 | return (*la->string_char_type); | |
1303 | } | |
1304 | ||
1305 | struct type * | |
1306 | language_lookup_primitive_type_by_name (const struct language_defn *la, | |
1307 | struct gdbarch *gdbarch, | |
1308 | const char *name) | |
1309 | { | |
1310 | struct language_gdbarch *ld = gdbarch_data (gdbarch, | |
1311 | language_gdbarch_data); | |
1312 | if (ld->arch_info[la->la_language].primitive_type_vector != NULL) | |
1313 | { | |
1314 | struct type *const *p; | |
1315 | for (p = ld->arch_info[la->la_language].primitive_type_vector; | |
1316 | (*p) != NULL; | |
1317 | p++) | |
1318 | { | |
1319 | if (strcmp (TYPE_NAME (*p), name) == 0) | |
1320 | return (*p); | |
1321 | } | |
1322 | } | |
1323 | else | |
1324 | { | |
1325 | struct type **const *p; | |
1326 | for (p = current_language->la_builtin_type_vector; *p != NULL; p++) | |
1327 | { | |
1328 | if (strcmp (TYPE_NAME (**p), name) == 0) | |
1329 | return (**p); | |
1330 | } | |
1331 | } | |
1332 | return (NULL); | |
1333 | } | |
1334 | ||
1335 | /* Initialize the language routines */ | |
1336 | ||
1337 | void | |
1338 | _initialize_language (void) | |
1339 | { | |
1340 | struct cmd_list_element *set, *show; | |
1341 | ||
1342 | language_gdbarch_data | |
1343 | = gdbarch_data_register_post_init (language_gdbarch_post_init); | |
1344 | ||
1345 | /* GDB commands for language specific stuff */ | |
1346 | ||
1347 | set = add_set_cmd ("language", class_support, var_string_noescape, | |
1348 | (char *) &language, | |
1349 | "Set the current source language.", | |
1350 | &setlist); | |
1351 | show = deprecated_add_show_from_set (set, &showlist); | |
1352 | set_cmd_cfunc (set, set_language_command); | |
1353 | set_cmd_cfunc (show, show_language_command); | |
1354 | ||
1355 | add_prefix_cmd ("check", no_class, set_check, | |
1356 | "Set the status of the type/range checker.", | |
1357 | &setchecklist, "set check ", 0, &setlist); | |
1358 | add_alias_cmd ("c", "check", no_class, 1, &setlist); | |
1359 | add_alias_cmd ("ch", "check", no_class, 1, &setlist); | |
1360 | ||
1361 | add_prefix_cmd ("check", no_class, show_check, | |
1362 | "Show the status of the type/range checker.", | |
1363 | &showchecklist, "show check ", 0, &showlist); | |
1364 | add_alias_cmd ("c", "check", no_class, 1, &showlist); | |
1365 | add_alias_cmd ("ch", "check", no_class, 1, &showlist); | |
1366 | ||
1367 | set = add_set_cmd ("type", class_support, var_string_noescape, | |
1368 | (char *) &type, | |
1369 | "Set type checking. (on/warn/off/auto)", | |
1370 | &setchecklist); | |
1371 | show = deprecated_add_show_from_set (set, &showchecklist); | |
1372 | set_cmd_cfunc (set, set_type_command); | |
1373 | set_cmd_cfunc (show, show_type_command); | |
1374 | ||
1375 | set = add_set_cmd ("range", class_support, var_string_noescape, | |
1376 | (char *) &range, | |
1377 | "Set range checking. (on/warn/off/auto)", | |
1378 | &setchecklist); | |
1379 | show = deprecated_add_show_from_set (set, &showchecklist); | |
1380 | set_cmd_cfunc (set, set_range_command); | |
1381 | set_cmd_cfunc (show, show_range_command); | |
1382 | ||
1383 | set = add_set_cmd ("case-sensitive", class_support, var_string_noescape, | |
1384 | (char *) &case_sensitive, | |
1385 | "Set case sensitivity in name search. (on/off/auto)\n\ | |
1386 | For Fortran the default is off; for other languages the default is on.", | |
1387 | &setlist); | |
1388 | show = deprecated_add_show_from_set (set, &showlist); | |
1389 | set_cmd_cfunc (set, set_case_command); | |
1390 | set_cmd_cfunc (show, show_case_command); | |
1391 | ||
1392 | add_language (&unknown_language_defn); | |
1393 | add_language (&local_language_defn); | |
1394 | add_language (&auto_language_defn); | |
1395 | ||
1396 | language = savestring ("auto", strlen ("auto")); | |
1397 | type = savestring ("auto", strlen ("auto")); | |
1398 | range = savestring ("auto", strlen ("auto")); | |
1399 | case_sensitive = savestring ("auto",strlen ("auto")); | |
1400 | ||
1401 | /* Have the above take effect */ | |
1402 | set_language (language_auto); | |
1403 | } |