Commit | Line | Data |
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c906108c | 1 | /* Multiple source language support for GDB. |
d9fcf2fb | 2 | Copyright 1991, 1992, 2000 Free Software Foundation, Inc. |
c906108c SS |
3 | Contributed by the Department of Computer Science at the State University |
4 | of New York at Buffalo. | |
5 | ||
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
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. | |
c906108c | 12 | |
c5aa993b JM |
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. | |
c906108c | 17 | |
c5aa993b JM |
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, | |
21 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
22 | |
23 | /* This file contains functions that return things that are specific | |
24 | to languages. Each function should examine current_language if necessary, | |
25 | and return the appropriate result. */ | |
26 | ||
27 | /* FIXME: Most of these would be better organized as macros which | |
28 | return data out of a "language-specific" struct pointer that is set | |
29 | whenever the working language changes. That would be a lot faster. */ | |
30 | ||
31 | #include "defs.h" | |
32 | #include <ctype.h> | |
33 | #include "gdb_string.h" | |
34 | ||
35 | #include "symtab.h" | |
36 | #include "gdbtypes.h" | |
37 | #include "value.h" | |
38 | #include "gdbcmd.h" | |
39 | #include "frame.h" | |
40 | #include "expression.h" | |
41 | #include "language.h" | |
42 | #include "target.h" | |
43 | #include "parser-defs.h" | |
44 | ||
392a587b JM |
45 | extern void _initialize_language PARAMS ((void)); |
46 | ||
c906108c SS |
47 | static void |
48 | show_language_command PARAMS ((char *, int)); | |
49 | ||
50 | static void | |
51 | set_language_command PARAMS ((char *, int)); | |
52 | ||
53 | static void | |
54 | show_type_command PARAMS ((char *, int)); | |
55 | ||
56 | static void | |
57 | set_type_command PARAMS ((char *, int)); | |
58 | ||
59 | static void | |
60 | show_range_command PARAMS ((char *, int)); | |
61 | ||
62 | static void | |
63 | set_range_command PARAMS ((char *, int)); | |
64 | ||
65 | static void | |
66 | set_range_str PARAMS ((void)); | |
67 | ||
68 | static void | |
69 | set_type_str PARAMS ((void)); | |
70 | ||
71 | static void | |
72 | set_lang_str PARAMS ((void)); | |
73 | ||
74 | static void | |
75 | unk_lang_error PARAMS ((char *)); | |
76 | ||
77 | static int | |
78 | unk_lang_parser PARAMS ((void)); | |
79 | ||
80 | static void | |
81 | show_check PARAMS ((char *, int)); | |
82 | ||
83 | static void | |
84 | set_check PARAMS ((char *, int)); | |
85 | ||
86 | static void | |
87 | set_type_range PARAMS ((void)); | |
88 | ||
d9fcf2fb | 89 | static void unk_lang_emit_char (int c, struct ui_file *stream, int quoter); |
c906108c | 90 | |
d9fcf2fb | 91 | static void unk_lang_printchar (int c, struct ui_file *stream); |
c906108c | 92 | |
d9fcf2fb JM |
93 | static void unk_lang_printstr (struct ui_file * stream, char *string, |
94 | unsigned int length, int width, | |
95 | int force_ellipses); | |
c906108c SS |
96 | |
97 | static struct type * | |
c5aa993b | 98 | unk_lang_create_fundamental_type PARAMS ((struct objfile *, int)); |
c906108c | 99 | |
d9fcf2fb JM |
100 | static void unk_lang_print_type (struct type *, char *, struct ui_file *, |
101 | int, int); | |
c906108c | 102 | |
d9fcf2fb JM |
103 | static int unk_lang_val_print (struct type *, char *, int, CORE_ADDR, |
104 | struct ui_file *, int, int, int, | |
105 | enum val_prettyprint); | |
c906108c | 106 | |
d9fcf2fb | 107 | static int unk_lang_value_print (value_ptr, struct ui_file *, int, enum val_prettyprint); |
c906108c SS |
108 | |
109 | /* Forward declaration */ | |
110 | extern const struct language_defn unknown_language_defn; | |
111 | extern char *warning_pre_print; | |
c5aa993b | 112 | |
c906108c | 113 | /* The current (default at startup) state of type and range checking. |
c5aa993b JM |
114 | (If the modes are set to "auto", though, these are changed based |
115 | on the default language at startup, and then again based on the | |
116 | language of the first source file. */ | |
c906108c SS |
117 | |
118 | enum range_mode range_mode = range_mode_auto; | |
119 | enum range_check range_check = range_check_off; | |
120 | enum type_mode type_mode = type_mode_auto; | |
121 | enum type_check type_check = type_check_off; | |
122 | ||
123 | /* The current language and language_mode (see language.h) */ | |
124 | ||
125 | const struct language_defn *current_language = &unknown_language_defn; | |
126 | enum language_mode language_mode = language_mode_auto; | |
127 | ||
128 | /* The language that the user expects to be typing in (the language | |
129 | of main(), or the last language we notified them about, or C). */ | |
130 | ||
131 | const struct language_defn *expected_language; | |
132 | ||
133 | /* The list of supported languages. The list itself is malloc'd. */ | |
134 | ||
135 | static const struct language_defn **languages; | |
136 | static unsigned languages_size; | |
137 | static unsigned languages_allocsize; | |
138 | #define DEFAULT_ALLOCSIZE 4 | |
139 | ||
140 | /* The "set language/type/range" commands all put stuff in these | |
141 | buffers. This is to make them work as set/show commands. The | |
142 | user's string is copied here, then the set_* commands look at | |
143 | them and update them to something that looks nice when it is | |
144 | printed out. */ | |
145 | ||
146 | static char *language; | |
147 | static char *type; | |
148 | static char *range; | |
149 | ||
150 | /* Warning issued when current_language and the language of the current | |
151 | frame do not match. */ | |
152 | char lang_frame_mismatch_warn[] = | |
c5aa993b | 153 | "Warning: the current language does not match this frame."; |
c906108c | 154 | \f |
c5aa993b | 155 | |
c906108c SS |
156 | /* This page contains the functions corresponding to GDB commands |
157 | and their helpers. */ | |
158 | ||
159 | /* Show command. Display a warning if the language set | |
160 | does not match the frame. */ | |
161 | static void | |
162 | show_language_command (ignore, from_tty) | |
c5aa993b JM |
163 | char *ignore; |
164 | int from_tty; | |
c906108c | 165 | { |
c5aa993b | 166 | enum language flang; /* The language of the current frame */ |
c906108c | 167 | |
c5aa993b JM |
168 | flang = get_frame_language (); |
169 | if (flang != language_unknown && | |
170 | language_mode == language_mode_manual && | |
171 | current_language->la_language != flang) | |
172 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
c906108c SS |
173 | } |
174 | ||
175 | /* Set command. Change the current working language. */ | |
176 | static void | |
177 | set_language_command (ignore, from_tty) | |
c5aa993b JM |
178 | char *ignore; |
179 | int from_tty; | |
c906108c SS |
180 | { |
181 | int i; | |
182 | enum language flang; | |
183 | char *err_lang; | |
184 | ||
185 | if (!language || !language[0]) | |
186 | { | |
c5aa993b | 187 | printf_unfiltered ("The currently understood settings are:\n\n"); |
c906108c SS |
188 | printf_unfiltered ("local or auto Automatic setting based on source file\n"); |
189 | ||
190 | for (i = 0; i < languages_size; ++i) | |
191 | { | |
192 | /* Already dealt with these above. */ | |
193 | if (languages[i]->la_language == language_unknown | |
194 | || languages[i]->la_language == language_auto) | |
195 | continue; | |
196 | ||
197 | /* FIXME for now assume that the human-readable name is just | |
198 | a capitalization of the internal name. */ | |
199 | printf_unfiltered ("%-16s Use the %c%s language\n", | |
200 | languages[i]->la_name, | |
c5aa993b JM |
201 | /* Capitalize first letter of language |
202 | name. */ | |
c906108c SS |
203 | toupper (languages[i]->la_name[0]), |
204 | languages[i]->la_name + 1); | |
205 | } | |
206 | /* Restore the silly string. */ | |
c5aa993b | 207 | set_language (current_language->la_language); |
c906108c SS |
208 | return; |
209 | } | |
210 | ||
211 | /* Search the list of languages for a match. */ | |
c5aa993b JM |
212 | for (i = 0; i < languages_size; i++) |
213 | { | |
214 | if (STREQ (languages[i]->la_name, language)) | |
215 | { | |
216 | /* Found it! Go into manual mode, and use this language. */ | |
217 | if (languages[i]->la_language == language_auto) | |
218 | { | |
219 | /* Enter auto mode. Set to the current frame's language, if known. */ | |
220 | language_mode = language_mode_auto; | |
221 | flang = get_frame_language (); | |
222 | if (flang != language_unknown) | |
223 | set_language (flang); | |
224 | expected_language = current_language; | |
225 | return; | |
226 | } | |
227 | else | |
228 | { | |
229 | /* Enter manual mode. Set the specified language. */ | |
230 | language_mode = language_mode_manual; | |
231 | current_language = languages[i]; | |
232 | set_type_range (); | |
233 | set_lang_str (); | |
234 | expected_language = current_language; | |
235 | return; | |
236 | } | |
237 | } | |
c906108c | 238 | } |
c906108c SS |
239 | |
240 | /* Reset the language (esp. the global string "language") to the | |
241 | correct values. */ | |
c5aa993b | 242 | err_lang = savestring (language, strlen (language)); |
c906108c | 243 | make_cleanup (free, err_lang); /* Free it after error */ |
c5aa993b JM |
244 | set_language (current_language->la_language); |
245 | error ("Unknown language `%s'.", err_lang); | |
c906108c SS |
246 | } |
247 | ||
248 | /* Show command. Display a warning if the type setting does | |
249 | not match the current language. */ | |
250 | static void | |
c5aa993b JM |
251 | show_type_command (ignore, from_tty) |
252 | char *ignore; | |
253 | int from_tty; | |
c906108c | 254 | { |
c5aa993b JM |
255 | if (type_check != current_language->la_type_check) |
256 | printf_unfiltered ( | |
257 | "Warning: the current type check setting does not match the language.\n"); | |
c906108c SS |
258 | } |
259 | ||
260 | /* Set command. Change the setting for type checking. */ | |
261 | static void | |
c5aa993b JM |
262 | set_type_command (ignore, from_tty) |
263 | char *ignore; | |
264 | int from_tty; | |
c906108c | 265 | { |
c5aa993b JM |
266 | if (STREQ (type, "on")) |
267 | { | |
c906108c SS |
268 | type_check = type_check_on; |
269 | type_mode = type_mode_manual; | |
c5aa993b JM |
270 | } |
271 | else if (STREQ (type, "warn")) | |
272 | { | |
c906108c SS |
273 | type_check = type_check_warn; |
274 | type_mode = type_mode_manual; | |
c5aa993b JM |
275 | } |
276 | else if (STREQ (type, "off")) | |
277 | { | |
c906108c SS |
278 | type_check = type_check_off; |
279 | type_mode = type_mode_manual; | |
c5aa993b JM |
280 | } |
281 | else if (STREQ (type, "auto")) | |
282 | { | |
c906108c | 283 | type_mode = type_mode_auto; |
c5aa993b | 284 | set_type_range (); |
c906108c SS |
285 | /* Avoid hitting the set_type_str call below. We |
286 | did it in set_type_range. */ | |
287 | return; | |
c5aa993b | 288 | } |
c4093a6a JM |
289 | else |
290 | { | |
291 | warning ("Unrecognized type check setting: \"%s\"", type); | |
292 | } | |
c5aa993b JM |
293 | set_type_str (); |
294 | show_type_command ((char *) NULL, from_tty); | |
c906108c SS |
295 | } |
296 | ||
297 | /* Show command. Display a warning if the range setting does | |
298 | not match the current language. */ | |
299 | static void | |
c5aa993b JM |
300 | show_range_command (ignore, from_tty) |
301 | char *ignore; | |
302 | int from_tty; | |
c906108c SS |
303 | { |
304 | ||
c5aa993b JM |
305 | if (range_check != current_language->la_range_check) |
306 | printf_unfiltered ( | |
307 | "Warning: the current range check setting does not match the language.\n"); | |
c906108c SS |
308 | } |
309 | ||
310 | /* Set command. Change the setting for range checking. */ | |
311 | static void | |
c5aa993b JM |
312 | set_range_command (ignore, from_tty) |
313 | char *ignore; | |
314 | int from_tty; | |
c906108c | 315 | { |
c5aa993b JM |
316 | if (STREQ (range, "on")) |
317 | { | |
c906108c SS |
318 | range_check = range_check_on; |
319 | range_mode = range_mode_manual; | |
c5aa993b JM |
320 | } |
321 | else if (STREQ (range, "warn")) | |
322 | { | |
c906108c SS |
323 | range_check = range_check_warn; |
324 | range_mode = range_mode_manual; | |
c5aa993b JM |
325 | } |
326 | else if (STREQ (range, "off")) | |
327 | { | |
c906108c SS |
328 | range_check = range_check_off; |
329 | range_mode = range_mode_manual; | |
c5aa993b JM |
330 | } |
331 | else if (STREQ (range, "auto")) | |
332 | { | |
c906108c | 333 | range_mode = range_mode_auto; |
c5aa993b | 334 | set_type_range (); |
c906108c | 335 | /* Avoid hitting the set_range_str call below. We |
c5aa993b | 336 | did it in set_type_range. */ |
c906108c | 337 | return; |
c5aa993b | 338 | } |
c4093a6a JM |
339 | else |
340 | { | |
341 | warning ("Unrecognized range check setting: \"%s\"", range); | |
342 | } | |
c5aa993b JM |
343 | set_range_str (); |
344 | show_range_command ((char *) 0, from_tty); | |
c906108c SS |
345 | } |
346 | ||
347 | /* Set the status of range and type checking based on | |
348 | the current modes and the current language. | |
349 | If SHOW is non-zero, then print out the current language, | |
350 | type and range checking status. */ | |
351 | static void | |
c5aa993b | 352 | set_type_range () |
c906108c SS |
353 | { |
354 | ||
355 | if (range_mode == range_mode_auto) | |
356 | range_check = current_language->la_range_check; | |
357 | ||
358 | if (type_mode == type_mode_auto) | |
359 | type_check = current_language->la_type_check; | |
360 | ||
c5aa993b JM |
361 | set_type_str (); |
362 | set_range_str (); | |
c906108c SS |
363 | } |
364 | ||
365 | /* Set current language to (enum language) LANG. Returns previous language. */ | |
366 | ||
367 | enum language | |
c5aa993b JM |
368 | set_language (lang) |
369 | enum language lang; | |
c906108c SS |
370 | { |
371 | int i; | |
372 | enum language prev_language; | |
373 | ||
374 | prev_language = current_language->la_language; | |
375 | ||
c5aa993b JM |
376 | for (i = 0; i < languages_size; i++) |
377 | { | |
378 | if (languages[i]->la_language == lang) | |
379 | { | |
380 | current_language = languages[i]; | |
381 | set_type_range (); | |
382 | set_lang_str (); | |
383 | break; | |
384 | } | |
c906108c | 385 | } |
c906108c SS |
386 | |
387 | return prev_language; | |
388 | } | |
389 | \f | |
390 | /* This page contains functions that update the global vars | |
391 | language, type and range. */ | |
392 | static void | |
c5aa993b | 393 | set_lang_str () |
c906108c | 394 | { |
c5aa993b | 395 | char *prefix = ""; |
c906108c | 396 | |
ccdaf797 PDM |
397 | if (language) |
398 | free (language); | |
c5aa993b JM |
399 | if (language_mode == language_mode_auto) |
400 | prefix = "auto; currently "; | |
c906108c | 401 | |
c5aa993b | 402 | language = concat (prefix, current_language->la_name, NULL); |
c906108c SS |
403 | } |
404 | ||
405 | static void | |
c5aa993b | 406 | set_type_str () |
c906108c | 407 | { |
c4093a6a | 408 | char *tmp = NULL, *prefix = ""; |
c906108c | 409 | |
ccdaf797 PDM |
410 | if (type) |
411 | free (type); | |
c5aa993b JM |
412 | if (type_mode == type_mode_auto) |
413 | prefix = "auto; currently "; | |
c906108c | 414 | |
c5aa993b JM |
415 | switch (type_check) |
416 | { | |
417 | case type_check_on: | |
c906108c SS |
418 | tmp = "on"; |
419 | break; | |
c5aa993b | 420 | case type_check_off: |
c906108c SS |
421 | tmp = "off"; |
422 | break; | |
c5aa993b | 423 | case type_check_warn: |
c906108c SS |
424 | tmp = "warn"; |
425 | break; | |
c5aa993b | 426 | default: |
c906108c | 427 | error ("Unrecognized type check setting."); |
c5aa993b | 428 | } |
c906108c | 429 | |
c5aa993b | 430 | type = concat (prefix, tmp, NULL); |
c906108c SS |
431 | } |
432 | ||
433 | static void | |
c5aa993b | 434 | set_range_str () |
c906108c | 435 | { |
c5aa993b | 436 | char *tmp, *pref = ""; |
c906108c | 437 | |
c5aa993b JM |
438 | if (range_mode == range_mode_auto) |
439 | pref = "auto; currently "; | |
c906108c | 440 | |
c5aa993b JM |
441 | switch (range_check) |
442 | { | |
443 | case range_check_on: | |
c906108c SS |
444 | tmp = "on"; |
445 | break; | |
c5aa993b | 446 | case range_check_off: |
c906108c SS |
447 | tmp = "off"; |
448 | break; | |
c5aa993b | 449 | case range_check_warn: |
c906108c SS |
450 | tmp = "warn"; |
451 | break; | |
c5aa993b | 452 | default: |
c906108c | 453 | error ("Unrecognized range check setting."); |
c5aa993b | 454 | } |
c906108c | 455 | |
ccdaf797 PDM |
456 | if (range) |
457 | free (range); | |
c5aa993b | 458 | range = concat (pref, tmp, NULL); |
c906108c SS |
459 | } |
460 | ||
461 | ||
462 | /* Print out the current language settings: language, range and | |
463 | type checking. If QUIETLY, print only what has changed. */ | |
464 | ||
465 | void | |
466 | language_info (quietly) | |
467 | int quietly; | |
468 | { | |
469 | if (quietly && expected_language == current_language) | |
470 | return; | |
471 | ||
472 | expected_language = current_language; | |
c5aa993b JM |
473 | printf_unfiltered ("Current language: %s\n", language); |
474 | show_language_command ((char *) 0, 1); | |
c906108c SS |
475 | |
476 | if (!quietly) | |
477 | { | |
c5aa993b JM |
478 | printf_unfiltered ("Type checking: %s\n", type); |
479 | show_type_command ((char *) 0, 1); | |
480 | printf_unfiltered ("Range checking: %s\n", range); | |
481 | show_range_command ((char *) 0, 1); | |
c906108c SS |
482 | } |
483 | } | |
484 | \f | |
485 | /* Return the result of a binary operation. */ | |
486 | ||
c5aa993b | 487 | #if 0 /* Currently unused */ |
c906108c SS |
488 | |
489 | struct type * | |
490 | binop_result_type (v1, v2) | |
c5aa993b | 491 | value_ptr v1, v2; |
c906108c | 492 | { |
c5aa993b JM |
493 | int size, uns; |
494 | struct type *t1 = check_typedef (VALUE_TYPE (v1)); | |
495 | struct type *t2 = check_typedef (VALUE_TYPE (v2)); | |
496 | ||
497 | int l1 = TYPE_LENGTH (t1); | |
498 | int l2 = TYPE_LENGTH (t2); | |
499 | ||
500 | switch (current_language->la_language) | |
501 | { | |
502 | case language_c: | |
503 | case language_cplus: | |
504 | if (TYPE_CODE (t1) == TYPE_CODE_FLT) | |
505 | return TYPE_CODE (t2) == TYPE_CODE_FLT && l2 > l1 ? | |
506 | VALUE_TYPE (v2) : VALUE_TYPE (v1); | |
507 | else if (TYPE_CODE (t2) == TYPE_CODE_FLT) | |
508 | return TYPE_CODE (t1) == TYPE_CODE_FLT && l1 > l2 ? | |
509 | VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
510 | else if (TYPE_UNSIGNED (t1) && l1 > l2) | |
511 | return VALUE_TYPE (v1); | |
512 | else if (TYPE_UNSIGNED (t2) && l2 > l1) | |
513 | return VALUE_TYPE (v2); | |
514 | else /* Both are signed. Result is the longer type */ | |
515 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
c906108c | 516 | break; |
c5aa993b | 517 | case language_m2: |
c906108c | 518 | /* If we are doing type-checking, l1 should equal l2, so this is |
c5aa993b JM |
519 | not needed. */ |
520 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
c906108c | 521 | break; |
c5aa993b JM |
522 | case language_chill: |
523 | error ("Missing Chill support in function binop_result_check."); /*FIXME */ | |
524 | } | |
525 | abort (); | |
526 | return (struct type *) 0; /* For lint */ | |
c906108c SS |
527 | } |
528 | ||
c5aa993b | 529 | #endif /* 0 */ |
c906108c | 530 | \f |
c5aa993b | 531 | |
c906108c SS |
532 | /* This page contains functions that return format strings for |
533 | printf for printing out numbers in different formats */ | |
534 | ||
535 | /* Returns the appropriate printf format for hexadecimal | |
536 | numbers. */ | |
537 | char * | |
c5aa993b JM |
538 | local_hex_format_custom (pre) |
539 | char *pre; | |
c906108c | 540 | { |
c5aa993b JM |
541 | static char form[50]; |
542 | ||
543 | strcpy (form, local_hex_format_prefix ()); | |
544 | strcat (form, "%"); | |
545 | strcat (form, pre); | |
546 | strcat (form, local_hex_format_specifier ()); | |
547 | strcat (form, local_hex_format_suffix ()); | |
548 | return form; | |
c906108c SS |
549 | } |
550 | ||
7acb79c8 AC |
551 | #if 0 |
552 | /* FIXME: cagney/2000-03-04: This function does not appear to be used. | |
553 | It can be deleted once 5.0 has been released. */ | |
554 | /* FIXME: cagney/2000-03-04: This code assumes that the compiler | |
555 | supports ``long long''. */ | |
c4093a6a JM |
556 | /* Converts a number to hexadecimal (without leading "0x") and stores it in a |
557 | static string. Returns a pointer to this string. */ | |
558 | ||
559 | char * | |
560 | longest_raw_hex_string (num) | |
561 | LONGEST num; | |
562 | { | |
563 | static char res_longest_raw_hex_string[50]; | |
564 | long long ll = num; /* MERGEBUG ?? see below */ | |
565 | res_longest_raw_hex_string[0] = 0; | |
566 | /* MERGEBUG ?? As a quick fix I am replacing this with sprintf | |
567 | strcat_address_numeric (num, 0, res_longest_raw_hex_string, 50); | |
568 | */ | |
569 | ||
570 | sprintf (res_longest_raw_hex_string, "%llx", ll); | |
571 | return res_longest_raw_hex_string; | |
572 | } | |
7acb79c8 | 573 | #endif |
c4093a6a | 574 | |
c906108c SS |
575 | /* Converts a number to hexadecimal and stores it in a static |
576 | string. Returns a pointer to this string. */ | |
577 | char * | |
578 | local_hex_string (num) | |
c5aa993b | 579 | unsigned long num; |
c906108c | 580 | { |
c5aa993b | 581 | static char res[50]; |
c906108c | 582 | |
c5aa993b JM |
583 | sprintf (res, local_hex_format (), num); |
584 | return res; | |
c906108c SS |
585 | } |
586 | ||
c4093a6a JM |
587 | /* Converts a LONGEST number to hexadecimal and stores it in a static |
588 | string. Returns a pointer to this string. */ | |
589 | char * | |
590 | longest_local_hex_string (num) | |
591 | LONGEST num; | |
592 | { | |
593 | return longest_local_hex_string_custom (num, "l"); | |
594 | } | |
595 | ||
c906108c SS |
596 | /* Converts a number to custom hexadecimal and stores it in a static |
597 | string. Returns a pointer to this string. */ | |
598 | char * | |
c5aa993b JM |
599 | local_hex_string_custom (num, pre) |
600 | unsigned long num; | |
601 | char *pre; | |
c906108c | 602 | { |
c5aa993b | 603 | static char res[50]; |
c906108c | 604 | |
c5aa993b JM |
605 | sprintf (res, local_hex_format_custom (pre), num); |
606 | return res; | |
c906108c SS |
607 | } |
608 | ||
c4093a6a JM |
609 | /* Converts a LONGEST number to custom hexadecimal and stores it in a static |
610 | string. Returns a pointer to this string. Note that the width parameter | |
611 | should end with "l", e.g. "08l" as with calls to local_hex_string_custom */ | |
612 | ||
613 | char * | |
614 | longest_local_hex_string_custom (num, width) | |
615 | LONGEST num; | |
616 | char *width; | |
617 | { | |
618 | #define RESULT_BUF_LEN 50 | |
619 | static char res2[RESULT_BUF_LEN]; | |
620 | char format[RESULT_BUF_LEN]; | |
621 | #if !defined (PRINTF_HAS_LONG_LONG) | |
622 | int field_width; | |
623 | int num_len; | |
624 | int num_pad_chars; | |
625 | char *pad_char; /* string with one character */ | |
626 | int pad_on_left; | |
627 | char *parse_ptr; | |
628 | char temp_nbr_buf[RESULT_BUF_LEN]; | |
629 | #endif | |
630 | ||
631 | #ifndef CC_HAS_LONG_LONG | |
632 | /* If there is no long long, then LONGEST should be just long and we | |
633 | can use local_hex_string_custom | |
634 | */ | |
635 | return local_hex_string_custom ((unsigned long) num, width); | |
392746e5 | 636 | #elif defined (PRINTF_HAS_LONG_LONG) |
c4093a6a JM |
637 | /* Just use printf. */ |
638 | strcpy (format, local_hex_format_prefix ()); /* 0x */ | |
639 | strcat (format, "%"); | |
640 | strcat (format, width); /* e.g. "08l" */ | |
641 | strcat (format, "l"); /* need "ll" for long long */ | |
642 | strcat (format, local_hex_format_specifier ()); /* "x" */ | |
643 | strcat (format, local_hex_format_suffix ()); /* "" */ | |
644 | sprintf (res2, format, num); | |
645 | return res2; | |
646 | #else /* !defined (PRINTF_HAS_LONG_LONG) */ | |
647 | /* Use strcat_address_numeric to print the number into a string, then | |
648 | build the result string from local_hex_format_prefix, padding and | |
649 | the hex representation as indicated by "width". */ | |
650 | ||
651 | temp_nbr_buf[0] = 0; | |
652 | /* With use_local == 0, we don't get the leading "0x" prefix. */ | |
653 | /* MERGEBUG ?? As a quick fix I am replacing this call to | |
654 | strcat_address_numeric with sprintf | |
655 | strcat_address_numeric(num, 0, temp_nbr_buf, RESULT_BUF_LEN); | |
656 | */ | |
657 | ||
658 | { | |
659 | long long ll = num; | |
660 | sprintf (temp_nbr_buf, "%llx", ll); | |
661 | } | |
662 | /* parse width */ | |
663 | parse_ptr = width; | |
664 | pad_on_left = 1; | |
665 | pad_char = " "; | |
666 | if (*parse_ptr == '-') | |
667 | { | |
668 | parse_ptr++; | |
669 | pad_on_left = 0; | |
670 | } | |
671 | if (*parse_ptr == '0') | |
672 | { | |
673 | parse_ptr++; | |
674 | if (pad_on_left) | |
675 | pad_char = "0"; /* If padding is on the right, it is blank */ | |
676 | } | |
677 | field_width = atoi (parse_ptr); | |
678 | num_len = strlen (temp_nbr_buf); | |
679 | num_pad_chars = field_width - strlen (temp_nbr_buf); /* possibly negative */ | |
680 | ||
681 | if (strlen (local_hex_format_prefix ()) + num_len + num_pad_chars | |
682 | < RESULT_BUF_LEN) /* paranoia */ | |
683 | internal_error ("longest_local_hex_string_custom: insufficient space to store result"); | |
684 | ||
685 | strcpy (res2, local_hex_format_prefix ()); | |
686 | if (pad_on_left) | |
687 | { | |
688 | while (num_pad_chars > 0) | |
689 | { | |
690 | strcat (res2, pad_char); | |
691 | num_pad_chars--; | |
692 | } | |
693 | } | |
694 | strcat (res2, temp_nbr_buf); | |
695 | if (!pad_on_left) | |
696 | { | |
697 | while (num_pad_chars > 0) | |
698 | { | |
699 | strcat (res2, pad_char); | |
700 | num_pad_chars--; | |
701 | } | |
702 | } | |
703 | return res2; | |
704 | #endif | |
705 | ||
706 | } /* longest_local_hex_string_custom */ | |
707 | ||
c906108c SS |
708 | /* Returns the appropriate printf format for octal |
709 | numbers. */ | |
710 | char * | |
c5aa993b JM |
711 | local_octal_format_custom (pre) |
712 | char *pre; | |
c906108c | 713 | { |
c5aa993b JM |
714 | static char form[50]; |
715 | ||
716 | strcpy (form, local_octal_format_prefix ()); | |
717 | strcat (form, "%"); | |
718 | strcat (form, pre); | |
719 | strcat (form, local_octal_format_specifier ()); | |
720 | strcat (form, local_octal_format_suffix ()); | |
721 | return form; | |
c906108c SS |
722 | } |
723 | ||
724 | /* Returns the appropriate printf format for decimal numbers. */ | |
725 | char * | |
c5aa993b JM |
726 | local_decimal_format_custom (pre) |
727 | char *pre; | |
c906108c | 728 | { |
c5aa993b JM |
729 | static char form[50]; |
730 | ||
731 | strcpy (form, local_decimal_format_prefix ()); | |
732 | strcat (form, "%"); | |
733 | strcat (form, pre); | |
734 | strcat (form, local_decimal_format_specifier ()); | |
735 | strcat (form, local_decimal_format_suffix ()); | |
736 | return form; | |
c906108c SS |
737 | } |
738 | \f | |
739 | #if 0 | |
740 | /* This page contains functions that are used in type/range checking. | |
741 | They all return zero if the type/range check fails. | |
742 | ||
743 | It is hoped that these will make extending GDB to parse different | |
744 | languages a little easier. These are primarily used in eval.c when | |
745 | evaluating expressions and making sure that their types are correct. | |
746 | Instead of having a mess of conjucted/disjuncted expressions in an "if", | |
747 | the ideas of type can be wrapped up in the following functions. | |
748 | ||
749 | Note that some of them are not currently dependent upon which language | |
750 | is currently being parsed. For example, floats are the same in | |
751 | C and Modula-2 (ie. the only floating point type has TYPE_CODE of | |
752 | TYPE_CODE_FLT), while booleans are different. */ | |
753 | ||
754 | /* Returns non-zero if its argument is a simple type. This is the same for | |
755 | both Modula-2 and for C. In the C case, TYPE_CODE_CHAR will never occur, | |
756 | and thus will never cause the failure of the test. */ | |
757 | int | |
c5aa993b JM |
758 | simple_type (type) |
759 | struct type *type; | |
c906108c SS |
760 | { |
761 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
762 | switch (TYPE_CODE (type)) |
763 | { | |
764 | case TYPE_CODE_INT: | |
765 | case TYPE_CODE_CHAR: | |
766 | case TYPE_CODE_ENUM: | |
767 | case TYPE_CODE_FLT: | |
768 | case TYPE_CODE_RANGE: | |
769 | case TYPE_CODE_BOOL: | |
770 | return 1; | |
c906108c | 771 | |
c5aa993b JM |
772 | default: |
773 | return 0; | |
774 | } | |
c906108c SS |
775 | } |
776 | ||
777 | /* Returns non-zero if its argument is of an ordered type. | |
778 | An ordered type is one in which the elements can be tested for the | |
779 | properties of "greater than", "less than", etc, or for which the | |
780 | operations "increment" or "decrement" make sense. */ | |
781 | int | |
782 | ordered_type (type) | |
c5aa993b | 783 | struct type *type; |
c906108c SS |
784 | { |
785 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
786 | switch (TYPE_CODE (type)) |
787 | { | |
788 | case TYPE_CODE_INT: | |
789 | case TYPE_CODE_CHAR: | |
790 | case TYPE_CODE_ENUM: | |
791 | case TYPE_CODE_FLT: | |
792 | case TYPE_CODE_RANGE: | |
793 | return 1; | |
c906108c | 794 | |
c5aa993b JM |
795 | default: |
796 | return 0; | |
797 | } | |
c906108c SS |
798 | } |
799 | ||
800 | /* Returns non-zero if the two types are the same */ | |
801 | int | |
802 | same_type (arg1, arg2) | |
c5aa993b | 803 | struct type *arg1, *arg2; |
c906108c SS |
804 | { |
805 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
806 | if (structured_type (arg1) ? !structured_type (arg2) : structured_type (arg2)) |
807 | /* One is structured and one isn't */ | |
808 | return 0; | |
809 | else if (structured_type (arg1) && structured_type (arg2)) | |
810 | return arg1 == arg2; | |
811 | else if (numeric_type (arg1) && numeric_type (arg2)) | |
812 | return (TYPE_CODE (arg2) == TYPE_CODE (arg1)) && | |
813 | (TYPE_UNSIGNED (arg1) == TYPE_UNSIGNED (arg2)) | |
814 | ? 1 : 0; | |
815 | else | |
816 | return arg1 == arg2; | |
c906108c SS |
817 | } |
818 | ||
819 | /* Returns non-zero if the type is integral */ | |
820 | int | |
821 | integral_type (type) | |
c5aa993b | 822 | struct type *type; |
c906108c SS |
823 | { |
824 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
825 | switch (current_language->la_language) |
826 | { | |
827 | case language_c: | |
828 | case language_cplus: | |
829 | return (TYPE_CODE (type) != TYPE_CODE_INT) && | |
830 | (TYPE_CODE (type) != TYPE_CODE_ENUM) ? 0 : 1; | |
831 | case language_m2: | |
832 | return TYPE_CODE (type) != TYPE_CODE_INT ? 0 : 1; | |
833 | case language_chill: | |
834 | error ("Missing Chill support in function integral_type."); /*FIXME */ | |
835 | default: | |
c906108c | 836 | error ("Language not supported."); |
c5aa993b | 837 | } |
c906108c SS |
838 | } |
839 | ||
840 | /* Returns non-zero if the value is numeric */ | |
841 | int | |
842 | numeric_type (type) | |
c5aa993b | 843 | struct type *type; |
c906108c SS |
844 | { |
845 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
846 | switch (TYPE_CODE (type)) |
847 | { | |
848 | case TYPE_CODE_INT: | |
849 | case TYPE_CODE_FLT: | |
850 | return 1; | |
c906108c | 851 | |
c5aa993b JM |
852 | default: |
853 | return 0; | |
854 | } | |
c906108c SS |
855 | } |
856 | ||
857 | /* Returns non-zero if the value is a character type */ | |
858 | int | |
859 | character_type (type) | |
c5aa993b | 860 | struct type *type; |
c906108c SS |
861 | { |
862 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
863 | switch (current_language->la_language) |
864 | { | |
865 | case language_chill: | |
866 | case language_m2: | |
867 | return TYPE_CODE (type) != TYPE_CODE_CHAR ? 0 : 1; | |
868 | ||
869 | case language_c: | |
870 | case language_cplus: | |
871 | return (TYPE_CODE (type) == TYPE_CODE_INT) && | |
872 | TYPE_LENGTH (type) == sizeof (char) | |
873 | ? 1 : 0; | |
874 | default: | |
c906108c | 875 | return (0); |
c5aa993b | 876 | } |
c906108c SS |
877 | } |
878 | ||
879 | /* Returns non-zero if the value is a string type */ | |
880 | int | |
881 | string_type (type) | |
c5aa993b | 882 | struct type *type; |
c906108c SS |
883 | { |
884 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
885 | switch (current_language->la_language) |
886 | { | |
887 | case language_chill: | |
888 | case language_m2: | |
889 | return TYPE_CODE (type) != TYPE_CODE_STRING ? 0 : 1; | |
890 | ||
891 | case language_c: | |
892 | case language_cplus: | |
c906108c SS |
893 | /* C does not have distinct string type. */ |
894 | return (0); | |
c5aa993b | 895 | default: |
c906108c | 896 | return (0); |
c5aa993b | 897 | } |
c906108c SS |
898 | } |
899 | ||
900 | /* Returns non-zero if the value is a boolean type */ | |
901 | int | |
902 | boolean_type (type) | |
c5aa993b | 903 | struct type *type; |
c906108c SS |
904 | { |
905 | CHECK_TYPEDEF (type); | |
906 | if (TYPE_CODE (type) == TYPE_CODE_BOOL) | |
907 | return 1; | |
c5aa993b | 908 | switch (current_language->la_language) |
c906108c SS |
909 | { |
910 | case language_c: | |
911 | case language_cplus: | |
912 | /* Might be more cleanly handled by having a TYPE_CODE_INT_NOT_BOOL | |
c5aa993b | 913 | for CHILL and such languages, or a TYPE_CODE_INT_OR_BOOL for C. */ |
c906108c SS |
914 | if (TYPE_CODE (type) == TYPE_CODE_INT) |
915 | return 1; | |
c5aa993b | 916 | default: |
c906108c | 917 | break; |
c5aa993b | 918 | } |
c906108c SS |
919 | return 0; |
920 | } | |
921 | ||
922 | /* Returns non-zero if the value is a floating-point type */ | |
923 | int | |
924 | float_type (type) | |
c5aa993b | 925 | struct type *type; |
c906108c SS |
926 | { |
927 | CHECK_TYPEDEF (type); | |
c5aa993b | 928 | return TYPE_CODE (type) == TYPE_CODE_FLT; |
c906108c SS |
929 | } |
930 | ||
931 | /* Returns non-zero if the value is a pointer type */ | |
932 | int | |
c5aa993b JM |
933 | pointer_type (type) |
934 | struct type *type; | |
c906108c | 935 | { |
c5aa993b JM |
936 | return TYPE_CODE (type) == TYPE_CODE_PTR || |
937 | TYPE_CODE (type) == TYPE_CODE_REF; | |
c906108c SS |
938 | } |
939 | ||
940 | /* Returns non-zero if the value is a structured type */ | |
941 | int | |
c5aa993b JM |
942 | structured_type (type) |
943 | struct type *type; | |
c906108c SS |
944 | { |
945 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
946 | switch (current_language->la_language) |
947 | { | |
948 | case language_c: | |
949 | case language_cplus: | |
950 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || | |
951 | (TYPE_CODE (type) == TYPE_CODE_UNION) || | |
952 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
953 | case language_m2: | |
954 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || | |
955 | (TYPE_CODE (type) == TYPE_CODE_SET) || | |
956 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
957 | case language_chill: | |
958 | error ("Missing Chill support in function structured_type."); /*FIXME */ | |
959 | default: | |
c906108c | 960 | return (0); |
c5aa993b | 961 | } |
c906108c SS |
962 | } |
963 | #endif | |
964 | \f | |
965 | struct type * | |
966 | lang_bool_type () | |
967 | { | |
968 | struct symbol *sym; | |
969 | struct type *type; | |
c5aa993b | 970 | switch (current_language->la_language) |
c906108c SS |
971 | { |
972 | case language_chill: | |
973 | return builtin_type_chill_bool; | |
974 | case language_fortran: | |
975 | sym = lookup_symbol ("logical", NULL, VAR_NAMESPACE, NULL, NULL); | |
976 | if (sym) | |
977 | { | |
978 | type = SYMBOL_TYPE (sym); | |
979 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
980 | return type; | |
981 | } | |
982 | return builtin_type_f_logical_s2; | |
983 | case language_cplus: | |
984 | sym = lookup_symbol ("bool", NULL, VAR_NAMESPACE, NULL, NULL); | |
985 | if (sym) | |
986 | { | |
987 | type = SYMBOL_TYPE (sym); | |
988 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
989 | return type; | |
990 | } | |
991 | return builtin_type_bool; | |
992 | default: | |
993 | return builtin_type_int; | |
994 | } | |
995 | } | |
996 | \f | |
997 | /* This page contains functions that return info about | |
998 | (struct value) values used in GDB. */ | |
999 | ||
1000 | /* Returns non-zero if the value VAL represents a true value. */ | |
1001 | int | |
1002 | value_true (val) | |
1003 | value_ptr val; | |
1004 | { | |
1005 | /* It is possible that we should have some sort of error if a non-boolean | |
1006 | value is used in this context. Possibly dependent on some kind of | |
1007 | "boolean-checking" option like range checking. But it should probably | |
1008 | not depend on the language except insofar as is necessary to identify | |
1009 | a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean | |
1010 | should be an error, probably). */ | |
1011 | return !value_logical_not (val); | |
1012 | } | |
1013 | \f | |
1014 | /* Returns non-zero if the operator OP is defined on | |
1015 | the values ARG1 and ARG2. */ | |
1016 | ||
c5aa993b | 1017 | #if 0 /* Currently unused */ |
c906108c SS |
1018 | |
1019 | void | |
c5aa993b JM |
1020 | binop_type_check (arg1, arg2, op) |
1021 | value_ptr arg1, arg2; | |
1022 | int op; | |
c906108c | 1023 | { |
c5aa993b | 1024 | struct type *t1, *t2; |
c906108c | 1025 | |
c5aa993b JM |
1026 | /* If we're not checking types, always return success. */ |
1027 | if (!STRICT_TYPE) | |
1028 | return; | |
1029 | ||
1030 | t1 = VALUE_TYPE (arg1); | |
1031 | if (arg2 != NULL) | |
1032 | t2 = VALUE_TYPE (arg2); | |
1033 | else | |
1034 | t2 = NULL; | |
c906108c | 1035 | |
c5aa993b JM |
1036 | switch (op) |
1037 | { | |
1038 | case BINOP_ADD: | |
1039 | case BINOP_SUB: | |
1040 | if ((numeric_type (t1) && pointer_type (t2)) || | |
1041 | (pointer_type (t1) && numeric_type (t2))) | |
1042 | { | |
1043 | warning ("combining pointer and integer.\n"); | |
1044 | break; | |
1045 | } | |
1046 | case BINOP_MUL: | |
1047 | case BINOP_LSH: | |
1048 | case BINOP_RSH: | |
1049 | if (!numeric_type (t1) || !numeric_type (t2)) | |
1050 | type_op_error ("Arguments to %s must be numbers.", op); | |
1051 | else if (!same_type (t1, t2)) | |
1052 | type_op_error ("Arguments to %s must be of the same type.", op); | |
c906108c SS |
1053 | break; |
1054 | ||
c5aa993b JM |
1055 | case BINOP_LOGICAL_AND: |
1056 | case BINOP_LOGICAL_OR: | |
1057 | if (!boolean_type (t1) || !boolean_type (t2)) | |
1058 | type_op_error ("Arguments to %s must be of boolean type.", op); | |
c906108c SS |
1059 | break; |
1060 | ||
c5aa993b JM |
1061 | case BINOP_EQUAL: |
1062 | if ((pointer_type (t1) && !(pointer_type (t2) || integral_type (t2))) || | |
1063 | (pointer_type (t2) && !(pointer_type (t1) || integral_type (t1)))) | |
1064 | type_op_error ("A pointer can only be compared to an integer or pointer.", op); | |
1065 | else if ((pointer_type (t1) && integral_type (t2)) || | |
1066 | (integral_type (t1) && pointer_type (t2))) | |
1067 | { | |
1068 | warning ("combining integer and pointer.\n"); | |
1069 | break; | |
1070 | } | |
1071 | else if (!simple_type (t1) || !simple_type (t2)) | |
1072 | type_op_error ("Arguments to %s must be of simple type.", op); | |
1073 | else if (!same_type (t1, t2)) | |
1074 | type_op_error ("Arguments to %s must be of the same type.", op); | |
c906108c SS |
1075 | break; |
1076 | ||
c5aa993b JM |
1077 | case BINOP_REM: |
1078 | case BINOP_MOD: | |
1079 | if (!integral_type (t1) || !integral_type (t2)) | |
1080 | type_op_error ("Arguments to %s must be of integral type.", op); | |
c906108c SS |
1081 | break; |
1082 | ||
c5aa993b JM |
1083 | case BINOP_LESS: |
1084 | case BINOP_GTR: | |
1085 | case BINOP_LEQ: | |
1086 | case BINOP_GEQ: | |
1087 | if (!ordered_type (t1) || !ordered_type (t2)) | |
1088 | type_op_error ("Arguments to %s must be of ordered type.", op); | |
1089 | else if (!same_type (t1, t2)) | |
1090 | type_op_error ("Arguments to %s must be of the same type.", op); | |
c906108c SS |
1091 | break; |
1092 | ||
c5aa993b JM |
1093 | case BINOP_ASSIGN: |
1094 | if (pointer_type (t1) && !integral_type (t2)) | |
1095 | type_op_error ("A pointer can only be assigned an integer.", op); | |
1096 | else if (pointer_type (t1) && integral_type (t2)) | |
1097 | { | |
1098 | warning ("combining integer and pointer."); | |
1099 | break; | |
1100 | } | |
1101 | else if (!simple_type (t1) || !simple_type (t2)) | |
1102 | type_op_error ("Arguments to %s must be of simple type.", op); | |
1103 | else if (!same_type (t1, t2)) | |
1104 | type_op_error ("Arguments to %s must be of the same type.", op); | |
c906108c SS |
1105 | break; |
1106 | ||
1107 | case BINOP_CONCAT: | |
1108 | /* FIXME: Needs to handle bitstrings as well. */ | |
c5aa993b JM |
1109 | if (!(string_type (t1) || character_type (t1) || integral_type (t1)) |
1110 | || !(string_type (t2) || character_type (t2) || integral_type (t2))) | |
1111 | type_op_error ("Arguments to %s must be strings or characters.", op); | |
c906108c SS |
1112 | break; |
1113 | ||
c5aa993b | 1114 | /* Unary checks -- arg2 is null */ |
c906108c | 1115 | |
c5aa993b JM |
1116 | case UNOP_LOGICAL_NOT: |
1117 | if (!boolean_type (t1)) | |
1118 | type_op_error ("Argument to %s must be of boolean type.", op); | |
c906108c SS |
1119 | break; |
1120 | ||
c5aa993b JM |
1121 | case UNOP_PLUS: |
1122 | case UNOP_NEG: | |
1123 | if (!numeric_type (t1)) | |
1124 | type_op_error ("Argument to %s must be of numeric type.", op); | |
c906108c SS |
1125 | break; |
1126 | ||
c5aa993b JM |
1127 | case UNOP_IND: |
1128 | if (integral_type (t1)) | |
1129 | { | |
1130 | warning ("combining pointer and integer.\n"); | |
1131 | break; | |
1132 | } | |
1133 | else if (!pointer_type (t1)) | |
1134 | type_op_error ("Argument to %s must be a pointer.", op); | |
c906108c SS |
1135 | break; |
1136 | ||
c5aa993b JM |
1137 | case UNOP_PREINCREMENT: |
1138 | case UNOP_POSTINCREMENT: | |
1139 | case UNOP_PREDECREMENT: | |
1140 | case UNOP_POSTDECREMENT: | |
1141 | if (!ordered_type (t1)) | |
1142 | type_op_error ("Argument to %s must be of an ordered type.", op); | |
c906108c SS |
1143 | break; |
1144 | ||
c5aa993b | 1145 | default: |
c906108c | 1146 | /* Ok. The following operators have different meanings in |
c5aa993b JM |
1147 | different languages. */ |
1148 | switch (current_language->la_language) | |
1149 | { | |
c906108c | 1150 | #ifdef _LANG_c |
c5aa993b JM |
1151 | case language_c: |
1152 | case language_cplus: | |
1153 | switch (op) | |
1154 | { | |
1155 | case BINOP_DIV: | |
1156 | if (!numeric_type (t1) || !numeric_type (t2)) | |
1157 | type_op_error ("Arguments to %s must be numbers.", op); | |
1158 | break; | |
1159 | } | |
1160 | break; | |
c906108c SS |
1161 | #endif |
1162 | ||
1163 | #ifdef _LANG_m2 | |
c5aa993b JM |
1164 | case language_m2: |
1165 | switch (op) | |
1166 | { | |
1167 | case BINOP_DIV: | |
1168 | if (!float_type (t1) || !float_type (t2)) | |
1169 | type_op_error ("Arguments to %s must be floating point numbers.", op); | |
1170 | break; | |
1171 | case BINOP_INTDIV: | |
1172 | if (!integral_type (t1) || !integral_type (t2)) | |
1173 | type_op_error ("Arguments to %s must be of integral type.", op); | |
1174 | break; | |
1175 | } | |
c906108c SS |
1176 | #endif |
1177 | ||
1178 | #ifdef _LANG_chill | |
c5aa993b JM |
1179 | case language_chill: |
1180 | error ("Missing Chill support in function binop_type_check."); /*FIXME */ | |
c906108c SS |
1181 | #endif |
1182 | ||
c5aa993b JM |
1183 | } |
1184 | } | |
c906108c SS |
1185 | } |
1186 | ||
c5aa993b | 1187 | #endif /* 0 */ |
c906108c | 1188 | \f |
c5aa993b | 1189 | |
c906108c SS |
1190 | /* This page contains functions for the printing out of |
1191 | error messages that occur during type- and range- | |
1192 | checking. */ | |
1193 | ||
1194 | /* Prints the format string FMT with the operator as a string | |
1195 | corresponding to the opcode OP. If FATAL is non-zero, then | |
1196 | this is an error and error () is called. Otherwise, it is | |
1197 | a warning and printf() is called. */ | |
1198 | void | |
c5aa993b JM |
1199 | op_error (fmt, op, fatal) |
1200 | char *fmt; | |
1201 | enum exp_opcode op; | |
1202 | int fatal; | |
c906108c | 1203 | { |
c5aa993b JM |
1204 | if (fatal) |
1205 | error (fmt, op_string (op)); | |
1206 | else | |
1207 | { | |
1208 | warning (fmt, op_string (op)); | |
1209 | } | |
c906108c SS |
1210 | } |
1211 | ||
1212 | /* These are called when a language fails a type- or range-check. | |
1213 | The first argument should be a printf()-style format string, and | |
1214 | the rest of the arguments should be its arguments. If | |
1215 | [type|range]_check is [type|range]_check_on, then return_to_top_level() | |
1216 | is called in the style of error (). Otherwise, the message is prefixed | |
1217 | by the value of warning_pre_print and we do not return to the top level. */ | |
1218 | ||
1219 | void | |
c5aa993b | 1220 | type_error (char *string,...) |
c906108c | 1221 | { |
c5aa993b | 1222 | va_list args; |
c5aa993b | 1223 | va_start (args, string); |
c906108c | 1224 | |
c5aa993b JM |
1225 | if (type_check == type_check_warn) |
1226 | fprintf_filtered (gdb_stderr, warning_pre_print); | |
1227 | else | |
1228 | error_begin (); | |
c906108c | 1229 | |
c5aa993b JM |
1230 | vfprintf_filtered (gdb_stderr, string, args); |
1231 | fprintf_filtered (gdb_stderr, "\n"); | |
1232 | va_end (args); | |
1233 | if (type_check == type_check_on) | |
1234 | return_to_top_level (RETURN_ERROR); | |
c906108c SS |
1235 | } |
1236 | ||
1237 | void | |
c5aa993b | 1238 | range_error (char *string,...) |
c906108c | 1239 | { |
c5aa993b | 1240 | va_list args; |
c5aa993b | 1241 | va_start (args, string); |
c906108c | 1242 | |
c5aa993b JM |
1243 | if (range_check == range_check_warn) |
1244 | fprintf_filtered (gdb_stderr, warning_pre_print); | |
1245 | else | |
1246 | error_begin (); | |
c906108c | 1247 | |
c5aa993b JM |
1248 | vfprintf_filtered (gdb_stderr, string, args); |
1249 | fprintf_filtered (gdb_stderr, "\n"); | |
1250 | va_end (args); | |
1251 | if (range_check == range_check_on) | |
1252 | return_to_top_level (RETURN_ERROR); | |
c906108c | 1253 | } |
c906108c | 1254 | \f |
c5aa993b | 1255 | |
c906108c SS |
1256 | /* This page contains miscellaneous functions */ |
1257 | ||
1258 | /* Return the language enum for a given language string. */ | |
1259 | ||
1260 | enum language | |
1261 | language_enum (str) | |
1262 | char *str; | |
1263 | { | |
1264 | int i; | |
1265 | ||
c5aa993b | 1266 | for (i = 0; i < languages_size; i++) |
c906108c SS |
1267 | if (STREQ (languages[i]->la_name, str)) |
1268 | return languages[i]->la_language; | |
1269 | ||
1270 | return language_unknown; | |
1271 | } | |
1272 | ||
1273 | /* Return the language struct for a given language enum. */ | |
1274 | ||
1275 | const struct language_defn * | |
c5aa993b JM |
1276 | language_def (lang) |
1277 | enum language lang; | |
c906108c SS |
1278 | { |
1279 | int i; | |
1280 | ||
c5aa993b JM |
1281 | for (i = 0; i < languages_size; i++) |
1282 | { | |
1283 | if (languages[i]->la_language == lang) | |
1284 | { | |
1285 | return languages[i]; | |
1286 | } | |
c906108c | 1287 | } |
c906108c SS |
1288 | return NULL; |
1289 | } | |
1290 | ||
1291 | /* Return the language as a string */ | |
1292 | char * | |
c5aa993b JM |
1293 | language_str (lang) |
1294 | enum language lang; | |
c906108c SS |
1295 | { |
1296 | int i; | |
1297 | ||
c5aa993b JM |
1298 | for (i = 0; i < languages_size; i++) |
1299 | { | |
1300 | if (languages[i]->la_language == lang) | |
1301 | { | |
1302 | return languages[i]->la_name; | |
1303 | } | |
c906108c | 1304 | } |
c906108c SS |
1305 | return "Unknown"; |
1306 | } | |
1307 | ||
1308 | static void | |
1309 | set_check (ignore, from_tty) | |
c5aa993b JM |
1310 | char *ignore; |
1311 | int from_tty; | |
c906108c | 1312 | { |
c5aa993b JM |
1313 | printf_unfiltered ( |
1314 | "\"set check\" must be followed by the name of a check subcommand.\n"); | |
1315 | help_list (setchecklist, "set check ", -1, gdb_stdout); | |
c906108c SS |
1316 | } |
1317 | ||
1318 | static void | |
1319 | show_check (ignore, from_tty) | |
c5aa993b JM |
1320 | char *ignore; |
1321 | int from_tty; | |
c906108c | 1322 | { |
c5aa993b | 1323 | cmd_show_list (showchecklist, from_tty, ""); |
c906108c SS |
1324 | } |
1325 | \f | |
1326 | /* Add a language to the set of known languages. */ | |
1327 | ||
1328 | void | |
1329 | add_language (lang) | |
1330 | const struct language_defn *lang; | |
1331 | { | |
1332 | if (lang->la_magic != LANG_MAGIC) | |
1333 | { | |
c5aa993b JM |
1334 | fprintf_unfiltered (gdb_stderr, "Magic number of %s language struct wrong\n", |
1335 | lang->la_name); | |
1336 | abort (); | |
c906108c SS |
1337 | } |
1338 | ||
1339 | if (!languages) | |
1340 | { | |
1341 | languages_allocsize = DEFAULT_ALLOCSIZE; | |
1342 | languages = (const struct language_defn **) xmalloc | |
1343 | (languages_allocsize * sizeof (*languages)); | |
1344 | } | |
1345 | if (languages_size >= languages_allocsize) | |
1346 | { | |
1347 | languages_allocsize *= 2; | |
1348 | languages = (const struct language_defn **) xrealloc ((char *) languages, | |
c5aa993b | 1349 | languages_allocsize * sizeof (*languages)); |
c906108c SS |
1350 | } |
1351 | languages[languages_size++] = lang; | |
1352 | } | |
1353 | ||
1354 | /* Define the language that is no language. */ | |
1355 | ||
1356 | static int | |
1357 | unk_lang_parser () | |
1358 | { | |
1359 | return 1; | |
1360 | } | |
1361 | ||
1362 | static void | |
1363 | unk_lang_error (msg) | |
1364 | char *msg; | |
1365 | { | |
1366 | error ("Attempted to parse an expression with unknown language"); | |
1367 | } | |
1368 | ||
1369 | static void | |
1370 | unk_lang_emit_char (c, stream, quoter) | |
1371 | register int c; | |
d9fcf2fb | 1372 | struct ui_file *stream; |
c906108c SS |
1373 | int quoter; |
1374 | { | |
1375 | error ("internal error - unimplemented function unk_lang_emit_char called."); | |
1376 | } | |
1377 | ||
1378 | static void | |
1379 | unk_lang_printchar (c, stream) | |
1380 | register int c; | |
d9fcf2fb | 1381 | struct ui_file *stream; |
c906108c SS |
1382 | { |
1383 | error ("internal error - unimplemented function unk_lang_printchar called."); | |
1384 | } | |
1385 | ||
1386 | static void | |
1387 | unk_lang_printstr (stream, string, length, width, force_ellipses) | |
d9fcf2fb | 1388 | struct ui_file *stream; |
c906108c SS |
1389 | char *string; |
1390 | unsigned int length; | |
1391 | int width; | |
1392 | int force_ellipses; | |
1393 | { | |
1394 | error ("internal error - unimplemented function unk_lang_printstr called."); | |
1395 | } | |
1396 | ||
1397 | static struct type * | |
1398 | unk_lang_create_fundamental_type (objfile, typeid) | |
1399 | struct objfile *objfile; | |
1400 | int typeid; | |
1401 | { | |
1402 | error ("internal error - unimplemented function unk_lang_create_fundamental_type called."); | |
1403 | } | |
1404 | ||
1405 | static void | |
1406 | unk_lang_print_type (type, varstring, stream, show, level) | |
1407 | struct type *type; | |
1408 | char *varstring; | |
d9fcf2fb | 1409 | struct ui_file *stream; |
c906108c SS |
1410 | int show; |
1411 | int level; | |
1412 | { | |
1413 | error ("internal error - unimplemented function unk_lang_print_type called."); | |
1414 | } | |
1415 | ||
1416 | static int | |
c5aa993b | 1417 | unk_lang_val_print (type, valaddr, embedded_offset, address, stream, format, deref_ref, |
c906108c SS |
1418 | recurse, pretty) |
1419 | struct type *type; | |
1420 | char *valaddr; | |
1421 | int embedded_offset; | |
1422 | CORE_ADDR address; | |
d9fcf2fb | 1423 | struct ui_file *stream; |
c906108c SS |
1424 | int format; |
1425 | int deref_ref; | |
1426 | int recurse; | |
1427 | enum val_prettyprint pretty; | |
1428 | { | |
1429 | error ("internal error - unimplemented function unk_lang_val_print called."); | |
1430 | } | |
1431 | ||
1432 | static int | |
1433 | unk_lang_value_print (val, stream, format, pretty) | |
1434 | value_ptr val; | |
d9fcf2fb | 1435 | struct ui_file *stream; |
c906108c SS |
1436 | int format; |
1437 | enum val_prettyprint pretty; | |
1438 | { | |
1439 | error ("internal error - unimplemented function unk_lang_value_print called."); | |
1440 | } | |
1441 | ||
c5aa993b JM |
1442 | static struct type **CONST_PTR (unknown_builtin_types[]) = |
1443 | { | |
1444 | 0 | |
1445 | }; | |
1446 | static const struct op_print unk_op_print_tab[] = | |
1447 | { | |
1448 | {NULL, OP_NULL, PREC_NULL, 0} | |
c906108c SS |
1449 | }; |
1450 | ||
c5aa993b JM |
1451 | const struct language_defn unknown_language_defn = |
1452 | { | |
c906108c SS |
1453 | "unknown", |
1454 | language_unknown, | |
1455 | &unknown_builtin_types[0], | |
1456 | range_check_off, | |
1457 | type_check_off, | |
1458 | unk_lang_parser, | |
1459 | unk_lang_error, | |
1460 | evaluate_subexp_standard, | |
1461 | unk_lang_printchar, /* Print character constant */ | |
1462 | unk_lang_printstr, | |
1463 | unk_lang_emit_char, | |
1464 | unk_lang_create_fundamental_type, | |
1465 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1466 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1467 | unk_lang_value_print, /* Print a top-level value */ | |
c5aa993b JM |
1468 | {"", "", "", ""}, /* Binary format info */ |
1469 | {"0%lo", "0", "o", ""}, /* Octal format info */ | |
1470 | {"%ld", "", "d", ""}, /* Decimal format info */ | |
1471 | {"0x%lx", "0x", "x", ""}, /* Hex format info */ | |
c906108c SS |
1472 | unk_op_print_tab, /* expression operators for printing */ |
1473 | 1, /* c-style arrays */ | |
1474 | 0, /* String lower bound */ | |
c5aa993b | 1475 | &builtin_type_char, /* Type of string elements */ |
c906108c SS |
1476 | LANG_MAGIC |
1477 | }; | |
1478 | ||
1479 | /* These two structs define fake entries for the "local" and "auto" options. */ | |
c5aa993b JM |
1480 | const struct language_defn auto_language_defn = |
1481 | { | |
c906108c SS |
1482 | "auto", |
1483 | language_auto, | |
1484 | &unknown_builtin_types[0], | |
1485 | range_check_off, | |
1486 | type_check_off, | |
1487 | unk_lang_parser, | |
1488 | unk_lang_error, | |
1489 | evaluate_subexp_standard, | |
1490 | unk_lang_printchar, /* Print character constant */ | |
1491 | unk_lang_printstr, | |
1492 | unk_lang_emit_char, | |
1493 | unk_lang_create_fundamental_type, | |
1494 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1495 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1496 | unk_lang_value_print, /* Print a top-level value */ | |
c5aa993b JM |
1497 | {"", "", "", ""}, /* Binary format info */ |
1498 | {"0%lo", "0", "o", ""}, /* Octal format info */ | |
1499 | {"%ld", "", "d", ""}, /* Decimal format info */ | |
1500 | {"0x%lx", "0x", "x", ""}, /* Hex format info */ | |
c906108c SS |
1501 | unk_op_print_tab, /* expression operators for printing */ |
1502 | 1, /* c-style arrays */ | |
1503 | 0, /* String lower bound */ | |
c5aa993b | 1504 | &builtin_type_char, /* Type of string elements */ |
c906108c SS |
1505 | LANG_MAGIC |
1506 | }; | |
1507 | ||
c5aa993b JM |
1508 | const struct language_defn local_language_defn = |
1509 | { | |
c906108c SS |
1510 | "local", |
1511 | language_auto, | |
1512 | &unknown_builtin_types[0], | |
1513 | range_check_off, | |
1514 | type_check_off, | |
1515 | unk_lang_parser, | |
1516 | unk_lang_error, | |
1517 | evaluate_subexp_standard, | |
1518 | unk_lang_printchar, /* Print character constant */ | |
1519 | unk_lang_printstr, | |
1520 | unk_lang_emit_char, | |
1521 | unk_lang_create_fundamental_type, | |
1522 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1523 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1524 | unk_lang_value_print, /* Print a top-level value */ | |
c5aa993b JM |
1525 | {"", "", "", ""}, /* Binary format info */ |
1526 | {"0%lo", "0", "o", ""}, /* Octal format info */ | |
1527 | {"%ld", "", "d", ""}, /* Decimal format info */ | |
1528 | {"0x%lx", "0x", "x", ""}, /* Hex format info */ | |
c906108c SS |
1529 | unk_op_print_tab, /* expression operators for printing */ |
1530 | 1, /* c-style arrays */ | |
1531 | 0, /* String lower bound */ | |
c5aa993b | 1532 | &builtin_type_char, /* Type of string elements */ |
c906108c SS |
1533 | LANG_MAGIC |
1534 | }; | |
1535 | \f | |
1536 | /* Initialize the language routines */ | |
1537 | ||
1538 | void | |
c5aa993b | 1539 | _initialize_language () |
c906108c | 1540 | { |
c5aa993b JM |
1541 | struct cmd_list_element *set, *show; |
1542 | ||
1543 | /* GDB commands for language specific stuff */ | |
1544 | ||
1545 | set = add_set_cmd ("language", class_support, var_string_noescape, | |
1546 | (char *) &language, | |
1547 | "Set the current source language.", | |
1548 | &setlist); | |
1549 | show = add_show_from_set (set, &showlist); | |
1550 | set->function.cfunc = set_language_command; | |
1551 | show->function.cfunc = show_language_command; | |
1552 | ||
1553 | add_prefix_cmd ("check", no_class, set_check, | |
1554 | "Set the status of the type/range checker", | |
1555 | &setchecklist, "set check ", 0, &setlist); | |
1556 | add_alias_cmd ("c", "check", no_class, 1, &setlist); | |
1557 | add_alias_cmd ("ch", "check", no_class, 1, &setlist); | |
1558 | ||
1559 | add_prefix_cmd ("check", no_class, show_check, | |
1560 | "Show the status of the type/range checker", | |
1561 | &showchecklist, "show check ", 0, &showlist); | |
1562 | add_alias_cmd ("c", "check", no_class, 1, &showlist); | |
1563 | add_alias_cmd ("ch", "check", no_class, 1, &showlist); | |
1564 | ||
1565 | set = add_set_cmd ("type", class_support, var_string_noescape, | |
1566 | (char *) &type, | |
1567 | "Set type checking. (on/warn/off/auto)", | |
1568 | &setchecklist); | |
1569 | show = add_show_from_set (set, &showchecklist); | |
1570 | set->function.cfunc = set_type_command; | |
1571 | show->function.cfunc = show_type_command; | |
1572 | ||
1573 | set = add_set_cmd ("range", class_support, var_string_noescape, | |
1574 | (char *) &range, | |
1575 | "Set range checking. (on/warn/off/auto)", | |
1576 | &setchecklist); | |
1577 | show = add_show_from_set (set, &showchecklist); | |
1578 | set->function.cfunc = set_range_command; | |
1579 | show->function.cfunc = show_range_command; | |
1580 | ||
1581 | add_language (&unknown_language_defn); | |
1582 | add_language (&local_language_defn); | |
1583 | add_language (&auto_language_defn); | |
1584 | ||
1585 | language = savestring ("auto", strlen ("auto")); | |
c5aa993b | 1586 | set_language_command (language, 0); |
ed9a39eb JM |
1587 | |
1588 | type = savestring ("auto", strlen ("auto")); | |
c5aa993b | 1589 | set_type_command (NULL, 0); |
ed9a39eb JM |
1590 | |
1591 | range = savestring ("auto", strlen ("auto")); | |
c5aa993b | 1592 | set_range_command (NULL, 0); |
c906108c | 1593 | } |