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c906108c SS |
1 | /* Multiple source language support for GDB. |
2 | Copyright 1991, 1992 Free Software Foundation, Inc. | |
3 | Contributed by the Department of Computer Science at the State University | |
4 | of New York at Buffalo. | |
5 | ||
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
21 | ||
22 | /* This file contains functions that return things that are specific | |
23 | to languages. Each function should examine current_language if necessary, | |
24 | and return the appropriate result. */ | |
25 | ||
26 | /* FIXME: Most of these would be better organized as macros which | |
27 | return data out of a "language-specific" struct pointer that is set | |
28 | whenever the working language changes. That would be a lot faster. */ | |
29 | ||
30 | #include "defs.h" | |
31 | #include <ctype.h> | |
32 | #include "gdb_string.h" | |
33 | ||
34 | #include "symtab.h" | |
35 | #include "gdbtypes.h" | |
36 | #include "value.h" | |
37 | #include "gdbcmd.h" | |
38 | #include "frame.h" | |
39 | #include "expression.h" | |
40 | #include "language.h" | |
41 | #include "target.h" | |
42 | #include "parser-defs.h" | |
43 | ||
392a587b JM |
44 | extern void _initialize_language PARAMS ((void)); |
45 | ||
c906108c SS |
46 | static void |
47 | show_language_command PARAMS ((char *, int)); | |
48 | ||
49 | static void | |
50 | set_language_command PARAMS ((char *, int)); | |
51 | ||
52 | static void | |
53 | show_type_command PARAMS ((char *, int)); | |
54 | ||
55 | static void | |
56 | set_type_command PARAMS ((char *, int)); | |
57 | ||
58 | static void | |
59 | show_range_command PARAMS ((char *, int)); | |
60 | ||
61 | static void | |
62 | set_range_command PARAMS ((char *, int)); | |
63 | ||
64 | static void | |
65 | set_range_str PARAMS ((void)); | |
66 | ||
67 | static void | |
68 | set_type_str PARAMS ((void)); | |
69 | ||
70 | static void | |
71 | set_lang_str PARAMS ((void)); | |
72 | ||
73 | static void | |
74 | unk_lang_error PARAMS ((char *)); | |
75 | ||
76 | static int | |
77 | unk_lang_parser PARAMS ((void)); | |
78 | ||
79 | static void | |
80 | show_check PARAMS ((char *, int)); | |
81 | ||
82 | static void | |
83 | set_check PARAMS ((char *, int)); | |
84 | ||
85 | static void | |
86 | set_type_range PARAMS ((void)); | |
87 | ||
88 | static void | |
89 | unk_lang_emit_char PARAMS ((int c, GDB_FILE *stream, int quoter)); | |
90 | ||
91 | static void | |
92 | unk_lang_printchar PARAMS ((int c, GDB_FILE *stream)); | |
93 | ||
94 | static void | |
95 | unk_lang_printstr PARAMS ((GDB_FILE *stream, char *string, unsigned int length, int width, int force_ellipses)); | |
96 | ||
97 | static struct type * | |
98 | unk_lang_create_fundamental_type PARAMS ((struct objfile *, int)); | |
99 | ||
100 | static void | |
101 | unk_lang_print_type PARAMS ((struct type *, char *, GDB_FILE *, int, int)); | |
102 | ||
103 | static int | |
104 | unk_lang_val_print PARAMS ((struct type *, char *, int, CORE_ADDR, GDB_FILE *, | |
105 | int, int, int, enum val_prettyprint)); | |
106 | ||
107 | static int | |
108 | unk_lang_value_print PARAMS ((value_ptr, GDB_FILE *, int, enum val_prettyprint)); | |
109 | ||
110 | /* Forward declaration */ | |
111 | extern const struct language_defn unknown_language_defn; | |
112 | extern char *warning_pre_print; | |
113 | ||
114 | /* The current (default at startup) state of type and range checking. | |
115 | (If the modes are set to "auto", though, these are changed based | |
116 | on the default language at startup, and then again based on the | |
117 | language of the first source file. */ | |
118 | ||
119 | enum range_mode range_mode = range_mode_auto; | |
120 | enum range_check range_check = range_check_off; | |
121 | enum type_mode type_mode = type_mode_auto; | |
122 | enum type_check type_check = type_check_off; | |
123 | ||
124 | /* The current language and language_mode (see language.h) */ | |
125 | ||
126 | const struct language_defn *current_language = &unknown_language_defn; | |
127 | enum language_mode language_mode = language_mode_auto; | |
128 | ||
129 | /* The language that the user expects to be typing in (the language | |
130 | of main(), or the last language we notified them about, or C). */ | |
131 | ||
132 | const struct language_defn *expected_language; | |
133 | ||
134 | /* The list of supported languages. The list itself is malloc'd. */ | |
135 | ||
136 | static const struct language_defn **languages; | |
137 | static unsigned languages_size; | |
138 | static unsigned languages_allocsize; | |
139 | #define DEFAULT_ALLOCSIZE 4 | |
140 | ||
141 | /* The "set language/type/range" commands all put stuff in these | |
142 | buffers. This is to make them work as set/show commands. The | |
143 | user's string is copied here, then the set_* commands look at | |
144 | them and update them to something that looks nice when it is | |
145 | printed out. */ | |
146 | ||
147 | static char *language; | |
148 | static char *type; | |
149 | static char *range; | |
150 | ||
151 | /* Warning issued when current_language and the language of the current | |
152 | frame do not match. */ | |
153 | char lang_frame_mismatch_warn[] = | |
154 | "Warning: the current language does not match this frame."; | |
155 | ||
156 | \f | |
157 | /* This page contains the functions corresponding to GDB commands | |
158 | and their helpers. */ | |
159 | ||
160 | /* Show command. Display a warning if the language set | |
161 | does not match the frame. */ | |
162 | static void | |
163 | show_language_command (ignore, from_tty) | |
164 | char *ignore; | |
165 | int from_tty; | |
166 | { | |
167 | enum language flang; /* The language of the current frame */ | |
168 | ||
169 | flang = get_frame_language(); | |
170 | if (flang != language_unknown && | |
171 | language_mode == language_mode_manual && | |
172 | current_language->la_language != flang) | |
173 | printf_filtered("%s\n",lang_frame_mismatch_warn); | |
174 | } | |
175 | ||
176 | /* Set command. Change the current working language. */ | |
177 | static void | |
178 | set_language_command (ignore, from_tty) | |
179 | char *ignore; | |
180 | int from_tty; | |
181 | { | |
182 | int i; | |
183 | enum language flang; | |
184 | char *err_lang; | |
185 | ||
186 | if (!language || !language[0]) | |
187 | { | |
188 | printf_unfiltered("The currently understood settings are:\n\n"); | |
189 | printf_unfiltered ("local or auto Automatic setting based on source file\n"); | |
190 | ||
191 | for (i = 0; i < languages_size; ++i) | |
192 | { | |
193 | /* Already dealt with these above. */ | |
194 | if (languages[i]->la_language == language_unknown | |
195 | || languages[i]->la_language == language_auto) | |
196 | continue; | |
197 | ||
198 | /* FIXME for now assume that the human-readable name is just | |
199 | a capitalization of the internal name. */ | |
200 | printf_unfiltered ("%-16s Use the %c%s language\n", | |
201 | languages[i]->la_name, | |
202 | /* Capitalize first letter of language | |
203 | name. */ | |
204 | toupper (languages[i]->la_name[0]), | |
205 | languages[i]->la_name + 1); | |
206 | } | |
207 | /* Restore the silly string. */ | |
208 | set_language(current_language->la_language); | |
209 | return; | |
210 | } | |
211 | ||
212 | /* Search the list of languages for a match. */ | |
213 | for (i = 0; i < languages_size; i++) { | |
214 | if (STREQ (languages[i]->la_name, language)) { | |
215 | /* Found it! Go into manual mode, and use this language. */ | |
216 | if (languages[i]->la_language == language_auto) { | |
217 | /* Enter auto mode. Set to the current frame's language, if known. */ | |
218 | language_mode = language_mode_auto; | |
219 | flang = get_frame_language(); | |
220 | if (flang!=language_unknown) | |
221 | set_language(flang); | |
222 | expected_language = current_language; | |
223 | return; | |
224 | } else { | |
225 | /* Enter manual mode. Set the specified language. */ | |
226 | language_mode = language_mode_manual; | |
227 | current_language = languages[i]; | |
228 | set_type_range (); | |
229 | set_lang_str(); | |
230 | expected_language = current_language; | |
231 | return; | |
232 | } | |
233 | } | |
234 | } | |
235 | ||
236 | /* Reset the language (esp. the global string "language") to the | |
237 | correct values. */ | |
238 | err_lang=savestring(language,strlen(language)); | |
239 | make_cleanup (free, err_lang); /* Free it after error */ | |
240 | set_language(current_language->la_language); | |
241 | error ("Unknown language `%s'.",err_lang); | |
242 | } | |
243 | ||
244 | /* Show command. Display a warning if the type setting does | |
245 | not match the current language. */ | |
246 | static void | |
247 | show_type_command(ignore, from_tty) | |
248 | char *ignore; | |
249 | int from_tty; | |
250 | { | |
251 | if (type_check != current_language->la_type_check) | |
252 | printf_unfiltered( | |
253 | "Warning: the current type check setting does not match the language.\n"); | |
254 | } | |
255 | ||
256 | /* Set command. Change the setting for type checking. */ | |
257 | static void | |
258 | set_type_command(ignore, from_tty) | |
259 | char *ignore; | |
260 | int from_tty; | |
261 | { | |
262 | if (STREQ(type,"on")) | |
263 | { | |
264 | type_check = type_check_on; | |
265 | type_mode = type_mode_manual; | |
266 | } | |
267 | else if (STREQ(type,"warn")) | |
268 | { | |
269 | type_check = type_check_warn; | |
270 | type_mode = type_mode_manual; | |
271 | } | |
272 | else if (STREQ(type,"off")) | |
273 | { | |
274 | type_check = type_check_off; | |
275 | type_mode = type_mode_manual; | |
276 | } | |
277 | else if (STREQ(type,"auto")) | |
278 | { | |
279 | type_mode = type_mode_auto; | |
280 | set_type_range(); | |
281 | /* Avoid hitting the set_type_str call below. We | |
282 | did it in set_type_range. */ | |
283 | return; | |
284 | } | |
285 | set_type_str(); | |
286 | show_type_command((char *)NULL, from_tty); | |
287 | } | |
288 | ||
289 | /* Show command. Display a warning if the range setting does | |
290 | not match the current language. */ | |
291 | static void | |
292 | show_range_command(ignore, from_tty) | |
293 | char *ignore; | |
294 | int from_tty; | |
295 | { | |
296 | ||
297 | if (range_check != current_language->la_range_check) | |
298 | printf_unfiltered( | |
299 | "Warning: the current range check setting does not match the language.\n"); | |
300 | } | |
301 | ||
302 | /* Set command. Change the setting for range checking. */ | |
303 | static void | |
304 | set_range_command(ignore, from_tty) | |
305 | char *ignore; | |
306 | int from_tty; | |
307 | { | |
308 | if (STREQ(range,"on")) | |
309 | { | |
310 | range_check = range_check_on; | |
311 | range_mode = range_mode_manual; | |
312 | } | |
313 | else if (STREQ(range,"warn")) | |
314 | { | |
315 | range_check = range_check_warn; | |
316 | range_mode = range_mode_manual; | |
317 | } | |
318 | else if (STREQ(range,"off")) | |
319 | { | |
320 | range_check = range_check_off; | |
321 | range_mode = range_mode_manual; | |
322 | } | |
323 | else if (STREQ(range,"auto")) | |
324 | { | |
325 | range_mode = range_mode_auto; | |
326 | set_type_range(); | |
327 | /* Avoid hitting the set_range_str call below. We | |
328 | did it in set_type_range. */ | |
329 | return; | |
330 | } | |
331 | set_range_str(); | |
332 | show_range_command((char *)0, from_tty); | |
333 | } | |
334 | ||
335 | /* Set the status of range and type checking based on | |
336 | the current modes and the current language. | |
337 | If SHOW is non-zero, then print out the current language, | |
338 | type and range checking status. */ | |
339 | static void | |
340 | set_type_range() | |
341 | { | |
342 | ||
343 | if (range_mode == range_mode_auto) | |
344 | range_check = current_language->la_range_check; | |
345 | ||
346 | if (type_mode == type_mode_auto) | |
347 | type_check = current_language->la_type_check; | |
348 | ||
349 | set_type_str(); | |
350 | set_range_str(); | |
351 | } | |
352 | ||
353 | /* Set current language to (enum language) LANG. Returns previous language. */ | |
354 | ||
355 | enum language | |
356 | set_language(lang) | |
357 | enum language lang; | |
358 | { | |
359 | int i; | |
360 | enum language prev_language; | |
361 | ||
362 | prev_language = current_language->la_language; | |
363 | ||
364 | for (i = 0; i < languages_size; i++) { | |
365 | if (languages[i]->la_language == lang) { | |
366 | current_language = languages[i]; | |
367 | set_type_range (); | |
368 | set_lang_str(); | |
369 | break; | |
370 | } | |
371 | } | |
372 | ||
373 | return prev_language; | |
374 | } | |
375 | \f | |
376 | /* This page contains functions that update the global vars | |
377 | language, type and range. */ | |
378 | static void | |
379 | set_lang_str() | |
380 | { | |
381 | char *prefix = ""; | |
382 | ||
383 | free (language); | |
384 | if (language_mode == language_mode_auto) | |
385 | prefix = "auto; currently "; | |
386 | ||
387 | language = concat(prefix, current_language->la_name, NULL); | |
388 | } | |
389 | ||
390 | static void | |
391 | set_type_str() | |
392 | { | |
393 | char *tmp, *prefix = ""; | |
394 | ||
395 | free (type); | |
396 | if (type_mode==type_mode_auto) | |
397 | prefix = "auto; currently "; | |
398 | ||
399 | switch(type_check) | |
400 | { | |
401 | case type_check_on: | |
402 | tmp = "on"; | |
403 | break; | |
404 | case type_check_off: | |
405 | tmp = "off"; | |
406 | break; | |
407 | case type_check_warn: | |
408 | tmp = "warn"; | |
409 | break; | |
410 | default: | |
411 | error ("Unrecognized type check setting."); | |
412 | } | |
413 | ||
414 | type = concat(prefix,tmp,NULL); | |
415 | } | |
416 | ||
417 | static void | |
418 | set_range_str() | |
419 | { | |
420 | char *tmp, *pref = ""; | |
421 | ||
422 | free (range); | |
423 | if (range_mode==range_mode_auto) | |
424 | pref = "auto; currently "; | |
425 | ||
426 | switch(range_check) | |
427 | { | |
428 | case range_check_on: | |
429 | tmp = "on"; | |
430 | break; | |
431 | case range_check_off: | |
432 | tmp = "off"; | |
433 | break; | |
434 | case range_check_warn: | |
435 | tmp = "warn"; | |
436 | break; | |
437 | default: | |
438 | error ("Unrecognized range check setting."); | |
439 | } | |
440 | ||
441 | range = concat(pref,tmp,NULL); | |
442 | } | |
443 | ||
444 | ||
445 | /* Print out the current language settings: language, range and | |
446 | type checking. If QUIETLY, print only what has changed. */ | |
447 | ||
448 | void | |
449 | language_info (quietly) | |
450 | int quietly; | |
451 | { | |
452 | if (quietly && expected_language == current_language) | |
453 | return; | |
454 | ||
455 | expected_language = current_language; | |
456 | printf_unfiltered("Current language: %s\n",language); | |
457 | show_language_command((char *)0, 1); | |
458 | ||
459 | if (!quietly) | |
460 | { | |
461 | printf_unfiltered("Type checking: %s\n",type); | |
462 | show_type_command((char *)0, 1); | |
463 | printf_unfiltered("Range checking: %s\n",range); | |
464 | show_range_command((char *)0, 1); | |
465 | } | |
466 | } | |
467 | \f | |
468 | /* Return the result of a binary operation. */ | |
469 | ||
470 | #if 0 /* Currently unused */ | |
471 | ||
472 | struct type * | |
473 | binop_result_type (v1, v2) | |
474 | value_ptr v1, v2; | |
475 | { | |
476 | int size,uns; | |
477 | struct type *t1 = check_typedef (VALUE_TYPE (v1)); | |
478 | struct type *t2 = check_typedef (VALUE_TYPE (v2)); | |
479 | ||
480 | int l1 = TYPE_LENGTH (t1); | |
481 | int l2 = TYPE_LENGTH (t2); | |
482 | ||
483 | switch(current_language->la_language) | |
484 | { | |
485 | case language_c: | |
486 | case language_cplus: | |
487 | if (TYPE_CODE (t1)==TYPE_CODE_FLT) | |
488 | return TYPE_CODE(t2) == TYPE_CODE_FLT && l2 > l1 ? | |
489 | VALUE_TYPE(v2) : VALUE_TYPE(v1); | |
490 | else if (TYPE_CODE(t2)==TYPE_CODE_FLT) | |
491 | return TYPE_CODE(t1)) == TYPE_CODE_FLT && l1 > l2 ? | |
492 | VALUE_TYPE(v1) : VALUE_TYPE(v2); | |
493 | else if (TYPE_UNSIGNED(t1) && l1 > l2) | |
494 | return VALUE_TYPE(v1); | |
495 | else if (TYPE_UNSIGNED(t2) && l2 > l1) | |
496 | return VALUE_TYPE(v2); | |
497 | else /* Both are signed. Result is the longer type */ | |
498 | return l1 > l2 ? VALUE_TYPE(v1) : VALUE_TYPE(v2); | |
499 | break; | |
500 | case language_m2: | |
501 | /* If we are doing type-checking, l1 should equal l2, so this is | |
502 | not needed. */ | |
503 | return l1 > l2 ? VALUE_TYPE(v1) : VALUE_TYPE(v2); | |
504 | break; | |
505 | case language_chill: | |
506 | error ("Missing Chill support in function binop_result_check.");/*FIXME*/ | |
507 | } | |
508 | abort(); | |
509 | return (struct type *)0; /* For lint */ | |
510 | } | |
511 | ||
512 | #endif /* 0 */ | |
513 | ||
514 | \f | |
515 | /* This page contains functions that return format strings for | |
516 | printf for printing out numbers in different formats */ | |
517 | ||
518 | /* Returns the appropriate printf format for hexadecimal | |
519 | numbers. */ | |
520 | char * | |
521 | local_hex_format_custom(pre) | |
522 | char *pre; | |
523 | { | |
524 | static char form[50]; | |
525 | ||
526 | strcpy (form, local_hex_format_prefix ()); | |
527 | strcat (form, "%"); | |
528 | strcat (form, pre); | |
529 | strcat (form, local_hex_format_specifier ()); | |
530 | strcat (form, local_hex_format_suffix ()); | |
531 | return form; | |
532 | } | |
533 | ||
534 | /* Converts a number to hexadecimal and stores it in a static | |
535 | string. Returns a pointer to this string. */ | |
536 | char * | |
537 | local_hex_string (num) | |
538 | unsigned long num; | |
539 | { | |
540 | static char res[50]; | |
541 | ||
542 | sprintf (res, local_hex_format(), num); | |
543 | return res; | |
544 | } | |
545 | ||
546 | /* Converts a number to custom hexadecimal and stores it in a static | |
547 | string. Returns a pointer to this string. */ | |
548 | char * | |
549 | local_hex_string_custom(num,pre) | |
550 | unsigned long num; | |
551 | char *pre; | |
552 | { | |
553 | static char res[50]; | |
554 | ||
555 | sprintf (res, local_hex_format_custom(pre), num); | |
556 | return res; | |
557 | } | |
558 | ||
559 | /* Returns the appropriate printf format for octal | |
560 | numbers. */ | |
561 | char * | |
562 | local_octal_format_custom(pre) | |
563 | char *pre; | |
564 | { | |
565 | static char form[50]; | |
566 | ||
567 | strcpy (form, local_octal_format_prefix ()); | |
568 | strcat (form, "%"); | |
569 | strcat (form, pre); | |
570 | strcat (form, local_octal_format_specifier ()); | |
571 | strcat (form, local_octal_format_suffix ()); | |
572 | return form; | |
573 | } | |
574 | ||
575 | /* Returns the appropriate printf format for decimal numbers. */ | |
576 | char * | |
577 | local_decimal_format_custom(pre) | |
578 | char *pre; | |
579 | { | |
580 | static char form[50]; | |
581 | ||
582 | strcpy (form, local_decimal_format_prefix ()); | |
583 | strcat (form, "%"); | |
584 | strcat (form, pre); | |
585 | strcat (form, local_decimal_format_specifier ()); | |
586 | strcat (form, local_decimal_format_suffix ()); | |
587 | return form; | |
588 | } | |
589 | \f | |
590 | #if 0 | |
591 | /* This page contains functions that are used in type/range checking. | |
592 | They all return zero if the type/range check fails. | |
593 | ||
594 | It is hoped that these will make extending GDB to parse different | |
595 | languages a little easier. These are primarily used in eval.c when | |
596 | evaluating expressions and making sure that their types are correct. | |
597 | Instead of having a mess of conjucted/disjuncted expressions in an "if", | |
598 | the ideas of type can be wrapped up in the following functions. | |
599 | ||
600 | Note that some of them are not currently dependent upon which language | |
601 | is currently being parsed. For example, floats are the same in | |
602 | C and Modula-2 (ie. the only floating point type has TYPE_CODE of | |
603 | TYPE_CODE_FLT), while booleans are different. */ | |
604 | ||
605 | /* Returns non-zero if its argument is a simple type. This is the same for | |
606 | both Modula-2 and for C. In the C case, TYPE_CODE_CHAR will never occur, | |
607 | and thus will never cause the failure of the test. */ | |
608 | int | |
609 | simple_type(type) | |
610 | struct type *type; | |
611 | { | |
612 | CHECK_TYPEDEF (type); | |
613 | switch (TYPE_CODE (type)) { | |
614 | case TYPE_CODE_INT: | |
615 | case TYPE_CODE_CHAR: | |
616 | case TYPE_CODE_ENUM: | |
617 | case TYPE_CODE_FLT: | |
618 | case TYPE_CODE_RANGE: | |
619 | case TYPE_CODE_BOOL: | |
620 | return 1; | |
621 | ||
622 | default: | |
623 | return 0; | |
624 | } | |
625 | } | |
626 | ||
627 | /* Returns non-zero if its argument is of an ordered type. | |
628 | An ordered type is one in which the elements can be tested for the | |
629 | properties of "greater than", "less than", etc, or for which the | |
630 | operations "increment" or "decrement" make sense. */ | |
631 | int | |
632 | ordered_type (type) | |
633 | struct type *type; | |
634 | { | |
635 | CHECK_TYPEDEF (type); | |
636 | switch (TYPE_CODE (type)) { | |
637 | case TYPE_CODE_INT: | |
638 | case TYPE_CODE_CHAR: | |
639 | case TYPE_CODE_ENUM: | |
640 | case TYPE_CODE_FLT: | |
641 | case TYPE_CODE_RANGE: | |
642 | return 1; | |
643 | ||
644 | default: | |
645 | return 0; | |
646 | } | |
647 | } | |
648 | ||
649 | /* Returns non-zero if the two types are the same */ | |
650 | int | |
651 | same_type (arg1, arg2) | |
652 | struct type *arg1, *arg2; | |
653 | { | |
654 | CHECK_TYPEDEF (type); | |
655 | if (structured_type(arg1) ? !structured_type(arg2) : structured_type(arg2)) | |
656 | /* One is structured and one isn't */ | |
657 | return 0; | |
658 | else if (structured_type(arg1) && structured_type(arg2)) | |
659 | return arg1 == arg2; | |
660 | else if (numeric_type(arg1) && numeric_type(arg2)) | |
661 | return (TYPE_CODE(arg2) == TYPE_CODE(arg1)) && | |
662 | (TYPE_UNSIGNED(arg1) == TYPE_UNSIGNED(arg2)) | |
663 | ? 1 : 0; | |
664 | else | |
665 | return arg1==arg2; | |
666 | } | |
667 | ||
668 | /* Returns non-zero if the type is integral */ | |
669 | int | |
670 | integral_type (type) | |
671 | struct type *type; | |
672 | { | |
673 | CHECK_TYPEDEF (type); | |
674 | switch(current_language->la_language) | |
675 | { | |
676 | case language_c: | |
677 | case language_cplus: | |
678 | return (TYPE_CODE(type) != TYPE_CODE_INT) && | |
679 | (TYPE_CODE(type) != TYPE_CODE_ENUM) ? 0 : 1; | |
680 | case language_m2: | |
681 | return TYPE_CODE(type) != TYPE_CODE_INT ? 0 : 1; | |
682 | case language_chill: | |
683 | error ("Missing Chill support in function integral_type."); /*FIXME*/ | |
684 | default: | |
685 | error ("Language not supported."); | |
686 | } | |
687 | } | |
688 | ||
689 | /* Returns non-zero if the value is numeric */ | |
690 | int | |
691 | numeric_type (type) | |
692 | struct type *type; | |
693 | { | |
694 | CHECK_TYPEDEF (type); | |
695 | switch (TYPE_CODE (type)) { | |
696 | case TYPE_CODE_INT: | |
697 | case TYPE_CODE_FLT: | |
698 | return 1; | |
699 | ||
700 | default: | |
701 | return 0; | |
702 | } | |
703 | } | |
704 | ||
705 | /* Returns non-zero if the value is a character type */ | |
706 | int | |
707 | character_type (type) | |
708 | struct type *type; | |
709 | { | |
710 | CHECK_TYPEDEF (type); | |
711 | switch(current_language->la_language) | |
712 | { | |
713 | case language_chill: | |
714 | case language_m2: | |
715 | return TYPE_CODE(type) != TYPE_CODE_CHAR ? 0 : 1; | |
716 | ||
717 | case language_c: | |
718 | case language_cplus: | |
719 | return (TYPE_CODE(type) == TYPE_CODE_INT) && | |
720 | TYPE_LENGTH(type) == sizeof(char) | |
721 | ? 1 : 0; | |
722 | default: | |
723 | return (0); | |
724 | } | |
725 | } | |
726 | ||
727 | /* Returns non-zero if the value is a string type */ | |
728 | int | |
729 | string_type (type) | |
730 | struct type *type; | |
731 | { | |
732 | CHECK_TYPEDEF (type); | |
733 | switch(current_language->la_language) | |
734 | { | |
735 | case language_chill: | |
736 | case language_m2: | |
737 | return TYPE_CODE(type) != TYPE_CODE_STRING ? 0 : 1; | |
738 | ||
739 | case language_c: | |
740 | case language_cplus: | |
741 | /* C does not have distinct string type. */ | |
742 | return (0); | |
743 | default: | |
744 | return (0); | |
745 | } | |
746 | } | |
747 | ||
748 | /* Returns non-zero if the value is a boolean type */ | |
749 | int | |
750 | boolean_type (type) | |
751 | struct type *type; | |
752 | { | |
753 | CHECK_TYPEDEF (type); | |
754 | if (TYPE_CODE (type) == TYPE_CODE_BOOL) | |
755 | return 1; | |
756 | switch(current_language->la_language) | |
757 | { | |
758 | case language_c: | |
759 | case language_cplus: | |
760 | /* Might be more cleanly handled by having a TYPE_CODE_INT_NOT_BOOL | |
761 | for CHILL and such languages, or a TYPE_CODE_INT_OR_BOOL for C. */ | |
762 | if (TYPE_CODE (type) == TYPE_CODE_INT) | |
763 | return 1; | |
764 | default: | |
765 | break; | |
766 | } | |
767 | return 0; | |
768 | } | |
769 | ||
770 | /* Returns non-zero if the value is a floating-point type */ | |
771 | int | |
772 | float_type (type) | |
773 | struct type *type; | |
774 | { | |
775 | CHECK_TYPEDEF (type); | |
776 | return TYPE_CODE(type) == TYPE_CODE_FLT; | |
777 | } | |
778 | ||
779 | /* Returns non-zero if the value is a pointer type */ | |
780 | int | |
781 | pointer_type(type) | |
782 | struct type *type; | |
783 | { | |
784 | return TYPE_CODE(type) == TYPE_CODE_PTR || | |
785 | TYPE_CODE(type) == TYPE_CODE_REF; | |
786 | } | |
787 | ||
788 | /* Returns non-zero if the value is a structured type */ | |
789 | int | |
790 | structured_type(type) | |
791 | struct type *type; | |
792 | { | |
793 | CHECK_TYPEDEF (type); | |
794 | switch(current_language->la_language) | |
795 | { | |
796 | case language_c: | |
797 | case language_cplus: | |
798 | return (TYPE_CODE(type) == TYPE_CODE_STRUCT) || | |
799 | (TYPE_CODE(type) == TYPE_CODE_UNION) || | |
800 | (TYPE_CODE(type) == TYPE_CODE_ARRAY); | |
801 | case language_m2: | |
802 | return (TYPE_CODE(type) == TYPE_CODE_STRUCT) || | |
803 | (TYPE_CODE(type) == TYPE_CODE_SET) || | |
804 | (TYPE_CODE(type) == TYPE_CODE_ARRAY); | |
805 | case language_chill: | |
806 | error ("Missing Chill support in function structured_type."); /*FIXME*/ | |
807 | default: | |
808 | return (0); | |
809 | } | |
810 | } | |
811 | #endif | |
812 | \f | |
813 | struct type * | |
814 | lang_bool_type () | |
815 | { | |
816 | struct symbol *sym; | |
817 | struct type *type; | |
818 | switch(current_language->la_language) | |
819 | { | |
820 | case language_chill: | |
821 | return builtin_type_chill_bool; | |
822 | case language_fortran: | |
823 | sym = lookup_symbol ("logical", NULL, VAR_NAMESPACE, NULL, NULL); | |
824 | if (sym) | |
825 | { | |
826 | type = SYMBOL_TYPE (sym); | |
827 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
828 | return type; | |
829 | } | |
830 | return builtin_type_f_logical_s2; | |
831 | case language_cplus: | |
832 | sym = lookup_symbol ("bool", NULL, VAR_NAMESPACE, NULL, NULL); | |
833 | if (sym) | |
834 | { | |
835 | type = SYMBOL_TYPE (sym); | |
836 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
837 | return type; | |
838 | } | |
839 | return builtin_type_bool; | |
840 | default: | |
841 | return builtin_type_int; | |
842 | } | |
843 | } | |
844 | \f | |
845 | /* This page contains functions that return info about | |
846 | (struct value) values used in GDB. */ | |
847 | ||
848 | /* Returns non-zero if the value VAL represents a true value. */ | |
849 | int | |
850 | value_true (val) | |
851 | value_ptr val; | |
852 | { | |
853 | /* It is possible that we should have some sort of error if a non-boolean | |
854 | value is used in this context. Possibly dependent on some kind of | |
855 | "boolean-checking" option like range checking. But it should probably | |
856 | not depend on the language except insofar as is necessary to identify | |
857 | a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean | |
858 | should be an error, probably). */ | |
859 | return !value_logical_not (val); | |
860 | } | |
861 | \f | |
862 | /* Returns non-zero if the operator OP is defined on | |
863 | the values ARG1 and ARG2. */ | |
864 | ||
865 | #if 0 /* Currently unused */ | |
866 | ||
867 | void | |
868 | binop_type_check(arg1,arg2,op) | |
869 | value_ptr arg1,arg2; | |
870 | int op; | |
871 | { | |
872 | struct type *t1, *t2; | |
873 | ||
874 | /* If we're not checking types, always return success. */ | |
875 | if (!STRICT_TYPE) | |
876 | return; | |
877 | ||
878 | t1=VALUE_TYPE(arg1); | |
879 | if (arg2 != NULL) | |
880 | t2=VALUE_TYPE(arg2); | |
881 | else | |
882 | t2=NULL; | |
883 | ||
884 | switch(op) | |
885 | { | |
886 | case BINOP_ADD: | |
887 | case BINOP_SUB: | |
888 | if ((numeric_type(t1) && pointer_type(t2)) || | |
889 | (pointer_type(t1) && numeric_type(t2))) | |
890 | { | |
891 | warning ("combining pointer and integer.\n"); | |
892 | break; | |
893 | } | |
894 | case BINOP_MUL: | |
895 | case BINOP_LSH: | |
896 | case BINOP_RSH: | |
897 | if (!numeric_type(t1) || !numeric_type(t2)) | |
898 | type_op_error ("Arguments to %s must be numbers.",op); | |
899 | else if (!same_type(t1,t2)) | |
900 | type_op_error ("Arguments to %s must be of the same type.",op); | |
901 | break; | |
902 | ||
903 | case BINOP_LOGICAL_AND: | |
904 | case BINOP_LOGICAL_OR: | |
905 | if (!boolean_type(t1) || !boolean_type(t2)) | |
906 | type_op_error ("Arguments to %s must be of boolean type.",op); | |
907 | break; | |
908 | ||
909 | case BINOP_EQUAL: | |
910 | if ((pointer_type(t1) && !(pointer_type(t2) || integral_type(t2))) || | |
911 | (pointer_type(t2) && !(pointer_type(t1) || integral_type(t1)))) | |
912 | type_op_error ("A pointer can only be compared to an integer or pointer.",op); | |
913 | else if ((pointer_type(t1) && integral_type(t2)) || | |
914 | (integral_type(t1) && pointer_type(t2))) | |
915 | { | |
916 | warning ("combining integer and pointer.\n"); | |
917 | break; | |
918 | } | |
919 | else if (!simple_type(t1) || !simple_type(t2)) | |
920 | type_op_error ("Arguments to %s must be of simple type.",op); | |
921 | else if (!same_type(t1,t2)) | |
922 | type_op_error ("Arguments to %s must be of the same type.",op); | |
923 | break; | |
924 | ||
925 | case BINOP_REM: | |
926 | case BINOP_MOD: | |
927 | if (!integral_type(t1) || !integral_type(t2)) | |
928 | type_op_error ("Arguments to %s must be of integral type.",op); | |
929 | break; | |
930 | ||
931 | case BINOP_LESS: | |
932 | case BINOP_GTR: | |
933 | case BINOP_LEQ: | |
934 | case BINOP_GEQ: | |
935 | if (!ordered_type(t1) || !ordered_type(t2)) | |
936 | type_op_error ("Arguments to %s must be of ordered type.",op); | |
937 | else if (!same_type(t1,t2)) | |
938 | type_op_error ("Arguments to %s must be of the same type.",op); | |
939 | break; | |
940 | ||
941 | case BINOP_ASSIGN: | |
942 | if (pointer_type(t1) && !integral_type(t2)) | |
943 | type_op_error ("A pointer can only be assigned an integer.",op); | |
944 | else if (pointer_type(t1) && integral_type(t2)) | |
945 | { | |
946 | warning ("combining integer and pointer."); | |
947 | break; | |
948 | } | |
949 | else if (!simple_type(t1) || !simple_type(t2)) | |
950 | type_op_error ("Arguments to %s must be of simple type.",op); | |
951 | else if (!same_type(t1,t2)) | |
952 | type_op_error ("Arguments to %s must be of the same type.",op); | |
953 | break; | |
954 | ||
955 | case BINOP_CONCAT: | |
956 | /* FIXME: Needs to handle bitstrings as well. */ | |
957 | if (!(string_type(t1) || character_type(t1) || integral_type(t1)) | |
958 | || !(string_type(t2) || character_type(t2) || integral_type(t2))) | |
959 | type_op_error ("Arguments to %s must be strings or characters.", op); | |
960 | break; | |
961 | ||
962 | /* Unary checks -- arg2 is null */ | |
963 | ||
964 | case UNOP_LOGICAL_NOT: | |
965 | if (!boolean_type(t1)) | |
966 | type_op_error ("Argument to %s must be of boolean type.",op); | |
967 | break; | |
968 | ||
969 | case UNOP_PLUS: | |
970 | case UNOP_NEG: | |
971 | if (!numeric_type(t1)) | |
972 | type_op_error ("Argument to %s must be of numeric type.",op); | |
973 | break; | |
974 | ||
975 | case UNOP_IND: | |
976 | if (integral_type(t1)) | |
977 | { | |
978 | warning ("combining pointer and integer.\n"); | |
979 | break; | |
980 | } | |
981 | else if (!pointer_type(t1)) | |
982 | type_op_error ("Argument to %s must be a pointer.",op); | |
983 | break; | |
984 | ||
985 | case UNOP_PREINCREMENT: | |
986 | case UNOP_POSTINCREMENT: | |
987 | case UNOP_PREDECREMENT: | |
988 | case UNOP_POSTDECREMENT: | |
989 | if (!ordered_type(t1)) | |
990 | type_op_error ("Argument to %s must be of an ordered type.",op); | |
991 | break; | |
992 | ||
993 | default: | |
994 | /* Ok. The following operators have different meanings in | |
995 | different languages. */ | |
996 | switch(current_language->la_language) | |
997 | { | |
998 | #ifdef _LANG_c | |
999 | case language_c: | |
1000 | case language_cplus: | |
1001 | switch(op) | |
1002 | { | |
1003 | case BINOP_DIV: | |
1004 | if (!numeric_type(t1) || !numeric_type(t2)) | |
1005 | type_op_error ("Arguments to %s must be numbers.",op); | |
1006 | break; | |
1007 | } | |
1008 | break; | |
1009 | #endif | |
1010 | ||
1011 | #ifdef _LANG_m2 | |
1012 | case language_m2: | |
1013 | switch(op) | |
1014 | { | |
1015 | case BINOP_DIV: | |
1016 | if (!float_type(t1) || !float_type(t2)) | |
1017 | type_op_error ("Arguments to %s must be floating point numbers.",op); | |
1018 | break; | |
1019 | case BINOP_INTDIV: | |
1020 | if (!integral_type(t1) || !integral_type(t2)) | |
1021 | type_op_error ("Arguments to %s must be of integral type.",op); | |
1022 | break; | |
1023 | } | |
1024 | #endif | |
1025 | ||
1026 | #ifdef _LANG_chill | |
1027 | case language_chill: | |
1028 | error ("Missing Chill support in function binop_type_check.");/*FIXME*/ | |
1029 | #endif | |
1030 | ||
1031 | } | |
1032 | } | |
1033 | } | |
1034 | ||
1035 | #endif /* 0 */ | |
1036 | ||
1037 | \f | |
1038 | /* This page contains functions for the printing out of | |
1039 | error messages that occur during type- and range- | |
1040 | checking. */ | |
1041 | ||
1042 | /* Prints the format string FMT with the operator as a string | |
1043 | corresponding to the opcode OP. If FATAL is non-zero, then | |
1044 | this is an error and error () is called. Otherwise, it is | |
1045 | a warning and printf() is called. */ | |
1046 | void | |
1047 | op_error (fmt,op,fatal) | |
1048 | char *fmt; | |
1049 | enum exp_opcode op; | |
1050 | int fatal; | |
1051 | { | |
1052 | if (fatal) | |
1053 | error (fmt,op_string(op)); | |
1054 | else | |
1055 | { | |
1056 | warning (fmt,op_string(op)); | |
1057 | } | |
1058 | } | |
1059 | ||
1060 | /* These are called when a language fails a type- or range-check. | |
1061 | The first argument should be a printf()-style format string, and | |
1062 | the rest of the arguments should be its arguments. If | |
1063 | [type|range]_check is [type|range]_check_on, then return_to_top_level() | |
1064 | is called in the style of error (). Otherwise, the message is prefixed | |
1065 | by the value of warning_pre_print and we do not return to the top level. */ | |
1066 | ||
1067 | void | |
1068 | #ifdef ANSI_PROTOTYPES | |
1069 | type_error (char *string, ...) | |
1070 | #else | |
1071 | type_error (va_alist) | |
1072 | va_dcl | |
1073 | #endif | |
1074 | { | |
1075 | va_list args; | |
1076 | #ifdef ANSI_PROTOTYPES | |
1077 | va_start (args, string); | |
1078 | #else | |
1079 | char *string; | |
1080 | va_start (args); | |
1081 | string = va_arg (args, char *); | |
1082 | #endif | |
1083 | ||
1084 | if (type_check == type_check_warn) | |
1085 | fprintf_filtered (gdb_stderr, warning_pre_print); | |
1086 | else | |
1087 | error_begin (); | |
1088 | ||
1089 | vfprintf_filtered (gdb_stderr, string, args); | |
1090 | fprintf_filtered (gdb_stderr, "\n"); | |
1091 | va_end (args); | |
1092 | if (type_check == type_check_on) | |
1093 | return_to_top_level (RETURN_ERROR); | |
1094 | } | |
1095 | ||
1096 | void | |
1097 | #ifdef ANSI_PROTOTYPES | |
1098 | range_error (char *string, ...) | |
1099 | #else | |
1100 | range_error (va_alist) | |
1101 | va_dcl | |
1102 | #endif | |
1103 | { | |
1104 | va_list args; | |
1105 | #ifdef ANSI_PROTOTYPES | |
1106 | va_start (args, string); | |
1107 | #else | |
1108 | char *string; | |
1109 | va_start (args); | |
1110 | string = va_arg (args, char *); | |
1111 | #endif | |
1112 | ||
1113 | if (range_check == range_check_warn) | |
1114 | fprintf_filtered (gdb_stderr, warning_pre_print); | |
1115 | else | |
1116 | error_begin (); | |
1117 | ||
1118 | vfprintf_filtered (gdb_stderr, string, args); | |
1119 | fprintf_filtered (gdb_stderr, "\n"); | |
1120 | va_end (args); | |
1121 | if (range_check == range_check_on) | |
1122 | return_to_top_level (RETURN_ERROR); | |
1123 | } | |
1124 | ||
1125 | \f | |
1126 | /* This page contains miscellaneous functions */ | |
1127 | ||
1128 | /* Return the language enum for a given language string. */ | |
1129 | ||
1130 | enum language | |
1131 | language_enum (str) | |
1132 | char *str; | |
1133 | { | |
1134 | int i; | |
1135 | ||
1136 | for (i = 0; i < languages_size; i++) | |
1137 | if (STREQ (languages[i]->la_name, str)) | |
1138 | return languages[i]->la_language; | |
1139 | ||
1140 | return language_unknown; | |
1141 | } | |
1142 | ||
1143 | /* Return the language struct for a given language enum. */ | |
1144 | ||
1145 | const struct language_defn * | |
1146 | language_def(lang) | |
1147 | enum language lang; | |
1148 | { | |
1149 | int i; | |
1150 | ||
1151 | for (i = 0; i < languages_size; i++) { | |
1152 | if (languages[i]->la_language == lang) { | |
1153 | return languages[i]; | |
1154 | } | |
1155 | } | |
1156 | return NULL; | |
1157 | } | |
1158 | ||
1159 | /* Return the language as a string */ | |
1160 | char * | |
1161 | language_str(lang) | |
1162 | enum language lang; | |
1163 | { | |
1164 | int i; | |
1165 | ||
1166 | for (i = 0; i < languages_size; i++) { | |
1167 | if (languages[i]->la_language == lang) { | |
1168 | return languages[i]->la_name; | |
1169 | } | |
1170 | } | |
1171 | return "Unknown"; | |
1172 | } | |
1173 | ||
1174 | static void | |
1175 | set_check (ignore, from_tty) | |
1176 | char *ignore; | |
1177 | int from_tty; | |
1178 | { | |
1179 | printf_unfiltered( | |
1180 | "\"set check\" must be followed by the name of a check subcommand.\n"); | |
1181 | help_list(setchecklist, "set check ", -1, gdb_stdout); | |
1182 | } | |
1183 | ||
1184 | static void | |
1185 | show_check (ignore, from_tty) | |
1186 | char *ignore; | |
1187 | int from_tty; | |
1188 | { | |
1189 | cmd_show_list(showchecklist, from_tty, ""); | |
1190 | } | |
1191 | \f | |
1192 | /* Add a language to the set of known languages. */ | |
1193 | ||
1194 | void | |
1195 | add_language (lang) | |
1196 | const struct language_defn *lang; | |
1197 | { | |
1198 | if (lang->la_magic != LANG_MAGIC) | |
1199 | { | |
1200 | fprintf_unfiltered(gdb_stderr, "Magic number of %s language struct wrong\n", | |
1201 | lang->la_name); | |
1202 | abort(); | |
1203 | } | |
1204 | ||
1205 | if (!languages) | |
1206 | { | |
1207 | languages_allocsize = DEFAULT_ALLOCSIZE; | |
1208 | languages = (const struct language_defn **) xmalloc | |
1209 | (languages_allocsize * sizeof (*languages)); | |
1210 | } | |
1211 | if (languages_size >= languages_allocsize) | |
1212 | { | |
1213 | languages_allocsize *= 2; | |
1214 | languages = (const struct language_defn **) xrealloc ((char *) languages, | |
1215 | languages_allocsize * sizeof (*languages)); | |
1216 | } | |
1217 | languages[languages_size++] = lang; | |
1218 | } | |
1219 | ||
1220 | /* Define the language that is no language. */ | |
1221 | ||
1222 | static int | |
1223 | unk_lang_parser () | |
1224 | { | |
1225 | return 1; | |
1226 | } | |
1227 | ||
1228 | static void | |
1229 | unk_lang_error (msg) | |
1230 | char *msg; | |
1231 | { | |
1232 | error ("Attempted to parse an expression with unknown language"); | |
1233 | } | |
1234 | ||
1235 | static void | |
1236 | unk_lang_emit_char (c, stream, quoter) | |
1237 | register int c; | |
1238 | GDB_FILE *stream; | |
1239 | int quoter; | |
1240 | { | |
1241 | error ("internal error - unimplemented function unk_lang_emit_char called."); | |
1242 | } | |
1243 | ||
1244 | static void | |
1245 | unk_lang_printchar (c, stream) | |
1246 | register int c; | |
1247 | GDB_FILE *stream; | |
1248 | { | |
1249 | error ("internal error - unimplemented function unk_lang_printchar called."); | |
1250 | } | |
1251 | ||
1252 | static void | |
1253 | unk_lang_printstr (stream, string, length, width, force_ellipses) | |
1254 | GDB_FILE *stream; | |
1255 | char *string; | |
1256 | unsigned int length; | |
1257 | int width; | |
1258 | int force_ellipses; | |
1259 | { | |
1260 | error ("internal error - unimplemented function unk_lang_printstr called."); | |
1261 | } | |
1262 | ||
1263 | static struct type * | |
1264 | unk_lang_create_fundamental_type (objfile, typeid) | |
1265 | struct objfile *objfile; | |
1266 | int typeid; | |
1267 | { | |
1268 | error ("internal error - unimplemented function unk_lang_create_fundamental_type called."); | |
1269 | } | |
1270 | ||
1271 | static void | |
1272 | unk_lang_print_type (type, varstring, stream, show, level) | |
1273 | struct type *type; | |
1274 | char *varstring; | |
1275 | GDB_FILE *stream; | |
1276 | int show; | |
1277 | int level; | |
1278 | { | |
1279 | error ("internal error - unimplemented function unk_lang_print_type called."); | |
1280 | } | |
1281 | ||
1282 | static int | |
1283 | unk_lang_val_print (type, valaddr, embedded_offset, address, stream, format, deref_ref, | |
1284 | recurse, pretty) | |
1285 | struct type *type; | |
1286 | char *valaddr; | |
1287 | int embedded_offset; | |
1288 | CORE_ADDR address; | |
1289 | GDB_FILE *stream; | |
1290 | int format; | |
1291 | int deref_ref; | |
1292 | int recurse; | |
1293 | enum val_prettyprint pretty; | |
1294 | { | |
1295 | error ("internal error - unimplemented function unk_lang_val_print called."); | |
1296 | } | |
1297 | ||
1298 | static int | |
1299 | unk_lang_value_print (val, stream, format, pretty) | |
1300 | value_ptr val; | |
1301 | GDB_FILE *stream; | |
1302 | int format; | |
1303 | enum val_prettyprint pretty; | |
1304 | { | |
1305 | error ("internal error - unimplemented function unk_lang_value_print called."); | |
1306 | } | |
1307 | ||
1308 | static struct type ** CONST_PTR (unknown_builtin_types[]) = { 0 }; | |
1309 | static const struct op_print unk_op_print_tab[] = { | |
1310 | {NULL, OP_NULL, PREC_NULL, 0} | |
1311 | }; | |
1312 | ||
1313 | const struct language_defn unknown_language_defn = { | |
1314 | "unknown", | |
1315 | language_unknown, | |
1316 | &unknown_builtin_types[0], | |
1317 | range_check_off, | |
1318 | type_check_off, | |
1319 | unk_lang_parser, | |
1320 | unk_lang_error, | |
1321 | evaluate_subexp_standard, | |
1322 | unk_lang_printchar, /* Print character constant */ | |
1323 | unk_lang_printstr, | |
1324 | unk_lang_emit_char, | |
1325 | unk_lang_create_fundamental_type, | |
1326 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1327 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1328 | unk_lang_value_print, /* Print a top-level value */ | |
1329 | {"", "", "", ""}, /* Binary format info */ | |
1330 | {"0%lo", "0", "o", ""}, /* Octal format info */ | |
1331 | {"%ld", "", "d", ""}, /* Decimal format info */ | |
1332 | {"0x%lx", "0x", "x", ""}, /* Hex format info */ | |
1333 | unk_op_print_tab, /* expression operators for printing */ | |
1334 | 1, /* c-style arrays */ | |
1335 | 0, /* String lower bound */ | |
1336 | &builtin_type_char, /* Type of string elements */ | |
1337 | LANG_MAGIC | |
1338 | }; | |
1339 | ||
1340 | /* These two structs define fake entries for the "local" and "auto" options. */ | |
1341 | const struct language_defn auto_language_defn = { | |
1342 | "auto", | |
1343 | language_auto, | |
1344 | &unknown_builtin_types[0], | |
1345 | range_check_off, | |
1346 | type_check_off, | |
1347 | unk_lang_parser, | |
1348 | unk_lang_error, | |
1349 | evaluate_subexp_standard, | |
1350 | unk_lang_printchar, /* Print character constant */ | |
1351 | unk_lang_printstr, | |
1352 | unk_lang_emit_char, | |
1353 | unk_lang_create_fundamental_type, | |
1354 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1355 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1356 | unk_lang_value_print, /* Print a top-level value */ | |
1357 | {"", "", "", ""}, /* Binary format info */ | |
1358 | {"0%lo", "0", "o", ""}, /* Octal format info */ | |
1359 | {"%ld", "", "d", ""}, /* Decimal format info */ | |
1360 | {"0x%lx", "0x", "x", ""}, /* Hex format info */ | |
1361 | unk_op_print_tab, /* expression operators for printing */ | |
1362 | 1, /* c-style arrays */ | |
1363 | 0, /* String lower bound */ | |
1364 | &builtin_type_char, /* Type of string elements */ | |
1365 | LANG_MAGIC | |
1366 | }; | |
1367 | ||
1368 | const struct language_defn local_language_defn = { | |
1369 | "local", | |
1370 | language_auto, | |
1371 | &unknown_builtin_types[0], | |
1372 | range_check_off, | |
1373 | type_check_off, | |
1374 | unk_lang_parser, | |
1375 | unk_lang_error, | |
1376 | evaluate_subexp_standard, | |
1377 | unk_lang_printchar, /* Print character constant */ | |
1378 | unk_lang_printstr, | |
1379 | unk_lang_emit_char, | |
1380 | unk_lang_create_fundamental_type, | |
1381 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1382 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1383 | unk_lang_value_print, /* Print a top-level value */ | |
1384 | {"", "", "", ""}, /* Binary format info */ | |
1385 | {"0%lo", "0", "o", ""}, /* Octal format info */ | |
1386 | {"%ld", "", "d", ""}, /* Decimal format info */ | |
1387 | {"0x%lx", "0x", "x", ""}, /* Hex format info */ | |
1388 | unk_op_print_tab, /* expression operators for printing */ | |
1389 | 1, /* c-style arrays */ | |
1390 | 0, /* String lower bound */ | |
1391 | &builtin_type_char, /* Type of string elements */ | |
1392 | LANG_MAGIC | |
1393 | }; | |
1394 | \f | |
1395 | /* Initialize the language routines */ | |
1396 | ||
1397 | void | |
1398 | _initialize_language() | |
1399 | { | |
1400 | struct cmd_list_element *set, *show; | |
1401 | ||
1402 | /* GDB commands for language specific stuff */ | |
1403 | ||
1404 | set = add_set_cmd ("language", class_support, var_string_noescape, | |
1405 | (char *)&language, | |
1406 | "Set the current source language.", | |
1407 | &setlist); | |
1408 | show = add_show_from_set (set, &showlist); | |
1409 | set->function.cfunc = set_language_command; | |
1410 | show->function.cfunc = show_language_command; | |
1411 | ||
1412 | add_prefix_cmd ("check", no_class, set_check, | |
1413 | "Set the status of the type/range checker", | |
1414 | &setchecklist, "set check ", 0, &setlist); | |
1415 | add_alias_cmd ("c", "check", no_class, 1, &setlist); | |
1416 | add_alias_cmd ("ch", "check", no_class, 1, &setlist); | |
1417 | ||
1418 | add_prefix_cmd ("check", no_class, show_check, | |
1419 | "Show the status of the type/range checker", | |
1420 | &showchecklist, "show check ", 0, &showlist); | |
1421 | add_alias_cmd ("c", "check", no_class, 1, &showlist); | |
1422 | add_alias_cmd ("ch", "check", no_class, 1, &showlist); | |
1423 | ||
1424 | set = add_set_cmd ("type", class_support, var_string_noescape, | |
1425 | (char *)&type, | |
1426 | "Set type checking. (on/warn/off/auto)", | |
1427 | &setchecklist); | |
1428 | show = add_show_from_set (set, &showchecklist); | |
1429 | set->function.cfunc = set_type_command; | |
1430 | show->function.cfunc = show_type_command; | |
1431 | ||
1432 | set = add_set_cmd ("range", class_support, var_string_noescape, | |
1433 | (char *)&range, | |
1434 | "Set range checking. (on/warn/off/auto)", | |
1435 | &setchecklist); | |
1436 | show = add_show_from_set (set, &showchecklist); | |
1437 | set->function.cfunc = set_range_command; | |
1438 | show->function.cfunc = show_range_command; | |
1439 | ||
1440 | add_language (&unknown_language_defn); | |
1441 | add_language (&local_language_defn); | |
1442 | add_language (&auto_language_defn); | |
1443 | ||
1444 | language = savestring ("auto",strlen("auto")); | |
1445 | range = savestring ("auto",strlen("auto")); | |
1446 | type = savestring ("auto",strlen("auto")); | |
1447 | ||
1448 | /* Have the above take effect */ | |
1449 | ||
1450 | set_language_command (language, 0); | |
1451 | set_type_command (NULL, 0); | |
1452 | set_range_command (NULL, 0); | |
1453 | } |