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" | |
8caabe69 | 44 | #include "jv-lang.h" |
c906108c | 45 | |
a14ed312 | 46 | extern void _initialize_language (void); |
392a587b | 47 | |
a14ed312 | 48 | static void show_language_command (char *, int); |
c906108c | 49 | |
a14ed312 | 50 | static void set_language_command (char *, int); |
c906108c | 51 | |
a14ed312 | 52 | static void show_type_command (char *, int); |
c906108c | 53 | |
a14ed312 | 54 | static void set_type_command (char *, int); |
c906108c | 55 | |
a14ed312 | 56 | static void show_range_command (char *, int); |
c906108c | 57 | |
a14ed312 | 58 | static void set_range_command (char *, int); |
c906108c | 59 | |
63872f9d JG |
60 | static void show_case_command (char *, int); |
61 | ||
62 | static void set_case_command (char *, int); | |
63 | ||
64 | static void set_case_str (void); | |
65 | ||
a14ed312 | 66 | static void set_range_str (void); |
c906108c | 67 | |
a14ed312 | 68 | static void set_type_str (void); |
c906108c | 69 | |
a14ed312 | 70 | static void set_lang_str (void); |
c906108c | 71 | |
a14ed312 | 72 | static void unk_lang_error (char *); |
c906108c | 73 | |
a14ed312 | 74 | static int unk_lang_parser (void); |
c906108c | 75 | |
a14ed312 | 76 | static void show_check (char *, int); |
c906108c | 77 | |
a14ed312 | 78 | static void set_check (char *, int); |
c906108c | 79 | |
63872f9d | 80 | static void set_type_range_case (void); |
c906108c | 81 | |
d9fcf2fb | 82 | static void unk_lang_emit_char (int c, struct ui_file *stream, int quoter); |
c906108c | 83 | |
d9fcf2fb | 84 | static void unk_lang_printchar (int c, struct ui_file *stream); |
c906108c | 85 | |
d9fcf2fb JM |
86 | static void unk_lang_printstr (struct ui_file * stream, char *string, |
87 | unsigned int length, int width, | |
88 | int force_ellipses); | |
c906108c | 89 | |
a14ed312 | 90 | static struct type *unk_lang_create_fundamental_type (struct objfile *, int); |
c906108c | 91 | |
d9fcf2fb JM |
92 | static void unk_lang_print_type (struct type *, char *, struct ui_file *, |
93 | int, int); | |
c906108c | 94 | |
d9fcf2fb JM |
95 | static int unk_lang_val_print (struct type *, char *, int, CORE_ADDR, |
96 | struct ui_file *, int, int, int, | |
97 | enum val_prettyprint); | |
c906108c | 98 | |
d9fcf2fb | 99 | static int unk_lang_value_print (value_ptr, struct ui_file *, int, enum val_prettyprint); |
c906108c SS |
100 | |
101 | /* Forward declaration */ | |
102 | extern const struct language_defn unknown_language_defn; | |
103 | extern char *warning_pre_print; | |
c5aa993b | 104 | |
c906108c | 105 | /* The current (default at startup) state of type and range checking. |
c5aa993b JM |
106 | (If the modes are set to "auto", though, these are changed based |
107 | on the default language at startup, and then again based on the | |
108 | language of the first source file. */ | |
c906108c SS |
109 | |
110 | enum range_mode range_mode = range_mode_auto; | |
111 | enum range_check range_check = range_check_off; | |
112 | enum type_mode type_mode = type_mode_auto; | |
113 | enum type_check type_check = type_check_off; | |
63872f9d JG |
114 | enum case_mode case_mode = case_mode_auto; |
115 | enum case_sensitivity case_sensitivity = case_sensitive_on; | |
c906108c SS |
116 | |
117 | /* The current language and language_mode (see language.h) */ | |
118 | ||
119 | const struct language_defn *current_language = &unknown_language_defn; | |
120 | enum language_mode language_mode = language_mode_auto; | |
121 | ||
122 | /* The language that the user expects to be typing in (the language | |
123 | of main(), or the last language we notified them about, or C). */ | |
124 | ||
125 | const struct language_defn *expected_language; | |
126 | ||
127 | /* The list of supported languages. The list itself is malloc'd. */ | |
128 | ||
129 | static const struct language_defn **languages; | |
130 | static unsigned languages_size; | |
131 | static unsigned languages_allocsize; | |
132 | #define DEFAULT_ALLOCSIZE 4 | |
133 | ||
134 | /* The "set language/type/range" commands all put stuff in these | |
135 | buffers. This is to make them work as set/show commands. The | |
136 | user's string is copied here, then the set_* commands look at | |
137 | them and update them to something that looks nice when it is | |
138 | printed out. */ | |
139 | ||
140 | static char *language; | |
141 | static char *type; | |
142 | static char *range; | |
63872f9d | 143 | static char *case_sensitive; |
c906108c SS |
144 | |
145 | /* Warning issued when current_language and the language of the current | |
146 | frame do not match. */ | |
147 | char lang_frame_mismatch_warn[] = | |
c5aa993b | 148 | "Warning: the current language does not match this frame."; |
c906108c | 149 | \f |
c5aa993b | 150 | |
c906108c SS |
151 | /* This page contains the functions corresponding to GDB commands |
152 | and their helpers. */ | |
153 | ||
154 | /* Show command. Display a warning if the language set | |
155 | does not match the frame. */ | |
156 | static void | |
fba45db2 | 157 | show_language_command (char *ignore, int from_tty) |
c906108c | 158 | { |
c5aa993b | 159 | enum language flang; /* The language of the current frame */ |
c906108c | 160 | |
c5aa993b JM |
161 | flang = get_frame_language (); |
162 | if (flang != language_unknown && | |
163 | language_mode == language_mode_manual && | |
164 | current_language->la_language != flang) | |
165 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
c906108c SS |
166 | } |
167 | ||
168 | /* Set command. Change the current working language. */ | |
169 | static void | |
fba45db2 | 170 | set_language_command (char *ignore, int from_tty) |
c906108c SS |
171 | { |
172 | int i; | |
173 | enum language flang; | |
174 | char *err_lang; | |
175 | ||
176 | if (!language || !language[0]) | |
177 | { | |
c5aa993b | 178 | printf_unfiltered ("The currently understood settings are:\n\n"); |
c906108c SS |
179 | printf_unfiltered ("local or auto Automatic setting based on source file\n"); |
180 | ||
181 | for (i = 0; i < languages_size; ++i) | |
182 | { | |
183 | /* Already dealt with these above. */ | |
184 | if (languages[i]->la_language == language_unknown | |
185 | || languages[i]->la_language == language_auto) | |
186 | continue; | |
187 | ||
188 | /* FIXME for now assume that the human-readable name is just | |
189 | a capitalization of the internal name. */ | |
190 | printf_unfiltered ("%-16s Use the %c%s language\n", | |
191 | languages[i]->la_name, | |
c5aa993b JM |
192 | /* Capitalize first letter of language |
193 | name. */ | |
c906108c SS |
194 | toupper (languages[i]->la_name[0]), |
195 | languages[i]->la_name + 1); | |
196 | } | |
197 | /* Restore the silly string. */ | |
c5aa993b | 198 | set_language (current_language->la_language); |
c906108c SS |
199 | return; |
200 | } | |
201 | ||
202 | /* Search the list of languages for a match. */ | |
c5aa993b JM |
203 | for (i = 0; i < languages_size; i++) |
204 | { | |
205 | if (STREQ (languages[i]->la_name, language)) | |
206 | { | |
207 | /* Found it! Go into manual mode, and use this language. */ | |
208 | if (languages[i]->la_language == language_auto) | |
209 | { | |
210 | /* Enter auto mode. Set to the current frame's language, if known. */ | |
211 | language_mode = language_mode_auto; | |
212 | flang = get_frame_language (); | |
213 | if (flang != language_unknown) | |
214 | set_language (flang); | |
215 | expected_language = current_language; | |
216 | return; | |
217 | } | |
218 | else | |
219 | { | |
220 | /* Enter manual mode. Set the specified language. */ | |
221 | language_mode = language_mode_manual; | |
222 | current_language = languages[i]; | |
63872f9d | 223 | set_type_range_case (); |
c5aa993b JM |
224 | set_lang_str (); |
225 | expected_language = current_language; | |
226 | return; | |
227 | } | |
228 | } | |
c906108c | 229 | } |
c906108c SS |
230 | |
231 | /* Reset the language (esp. the global string "language") to the | |
232 | correct values. */ | |
c5aa993b | 233 | err_lang = savestring (language, strlen (language)); |
c906108c | 234 | make_cleanup (free, err_lang); /* Free it after error */ |
c5aa993b JM |
235 | set_language (current_language->la_language); |
236 | error ("Unknown language `%s'.", err_lang); | |
c906108c SS |
237 | } |
238 | ||
239 | /* Show command. Display a warning if the type setting does | |
240 | not match the current language. */ | |
241 | static void | |
fba45db2 | 242 | show_type_command (char *ignore, int from_tty) |
c906108c | 243 | { |
c5aa993b JM |
244 | if (type_check != current_language->la_type_check) |
245 | printf_unfiltered ( | |
246 | "Warning: the current type check setting does not match the language.\n"); | |
c906108c SS |
247 | } |
248 | ||
249 | /* Set command. Change the setting for type checking. */ | |
250 | static void | |
fba45db2 | 251 | set_type_command (char *ignore, int from_tty) |
c906108c | 252 | { |
c5aa993b JM |
253 | if (STREQ (type, "on")) |
254 | { | |
c906108c SS |
255 | type_check = type_check_on; |
256 | type_mode = type_mode_manual; | |
c5aa993b JM |
257 | } |
258 | else if (STREQ (type, "warn")) | |
259 | { | |
c906108c SS |
260 | type_check = type_check_warn; |
261 | type_mode = type_mode_manual; | |
c5aa993b JM |
262 | } |
263 | else if (STREQ (type, "off")) | |
264 | { | |
c906108c SS |
265 | type_check = type_check_off; |
266 | type_mode = type_mode_manual; | |
c5aa993b JM |
267 | } |
268 | else if (STREQ (type, "auto")) | |
269 | { | |
c906108c | 270 | type_mode = type_mode_auto; |
63872f9d | 271 | set_type_range_case (); |
c906108c | 272 | /* Avoid hitting the set_type_str call below. We |
63872f9d | 273 | did it in set_type_range_case. */ |
c906108c | 274 | return; |
c5aa993b | 275 | } |
c4093a6a JM |
276 | else |
277 | { | |
278 | warning ("Unrecognized type check setting: \"%s\"", type); | |
279 | } | |
c5aa993b JM |
280 | set_type_str (); |
281 | show_type_command ((char *) NULL, from_tty); | |
c906108c SS |
282 | } |
283 | ||
284 | /* Show command. Display a warning if the range setting does | |
285 | not match the current language. */ | |
286 | static void | |
fba45db2 | 287 | show_range_command (char *ignore, int from_tty) |
c906108c SS |
288 | { |
289 | ||
c5aa993b JM |
290 | if (range_check != current_language->la_range_check) |
291 | printf_unfiltered ( | |
292 | "Warning: the current range check setting does not match the language.\n"); | |
c906108c SS |
293 | } |
294 | ||
295 | /* Set command. Change the setting for range checking. */ | |
296 | static void | |
fba45db2 | 297 | set_range_command (char *ignore, int from_tty) |
c906108c | 298 | { |
c5aa993b JM |
299 | if (STREQ (range, "on")) |
300 | { | |
c906108c SS |
301 | range_check = range_check_on; |
302 | range_mode = range_mode_manual; | |
c5aa993b JM |
303 | } |
304 | else if (STREQ (range, "warn")) | |
305 | { | |
c906108c SS |
306 | range_check = range_check_warn; |
307 | range_mode = range_mode_manual; | |
c5aa993b JM |
308 | } |
309 | else if (STREQ (range, "off")) | |
310 | { | |
c906108c SS |
311 | range_check = range_check_off; |
312 | range_mode = range_mode_manual; | |
c5aa993b JM |
313 | } |
314 | else if (STREQ (range, "auto")) | |
315 | { | |
c906108c | 316 | range_mode = range_mode_auto; |
63872f9d | 317 | set_type_range_case (); |
c906108c | 318 | /* Avoid hitting the set_range_str call below. We |
63872f9d | 319 | did it in set_type_range_case. */ |
c906108c | 320 | return; |
c5aa993b | 321 | } |
c4093a6a JM |
322 | else |
323 | { | |
324 | warning ("Unrecognized range check setting: \"%s\"", range); | |
325 | } | |
c5aa993b JM |
326 | set_range_str (); |
327 | show_range_command ((char *) 0, from_tty); | |
c906108c SS |
328 | } |
329 | ||
63872f9d JG |
330 | /* Show command. Display a warning if the case sensitivity setting does |
331 | not match the current language. */ | |
332 | static void | |
333 | show_case_command(ignore, from_tty) | |
334 | char *ignore; | |
335 | int from_tty; | |
336 | { | |
337 | if (case_sensitivity != current_language->la_case_sensitivity) | |
338 | printf_unfiltered( | |
339 | "Warning: the current case sensitivity setting does not match the language.\n"); | |
340 | } | |
341 | ||
342 | /* Set command. Change the setting for case sensitivity. */ | |
343 | static void | |
344 | set_case_command(ignore, from_tty) | |
345 | char *ignore; | |
346 | int from_tty; | |
347 | { | |
348 | if (STREQ (case_sensitive, "on")) | |
349 | { | |
350 | case_sensitivity = case_sensitive_on; | |
351 | case_mode = case_mode_manual; | |
352 | } | |
353 | else if (STREQ (case_sensitive, "off")) | |
354 | { | |
355 | case_sensitivity = case_sensitive_off; | |
356 | case_mode = case_mode_manual; | |
357 | } | |
358 | else if (STREQ (case_sensitive, "auto")) | |
359 | { | |
360 | case_mode = case_mode_auto; | |
361 | set_type_range_case (); | |
362 | /* Avoid hitting the set_case_str call below. We | |
363 | did it in set_type_range_case. */ | |
364 | return; | |
365 | } | |
366 | else | |
367 | { | |
368 | warning ("Unrecognized case-sensitive setting: \"%s\"", case_sensitive); | |
369 | } | |
370 | set_case_str(); | |
371 | show_case_command ((char *) NULL, from_tty); | |
372 | } | |
373 | ||
374 | /* Set the status of range and type checking and case sensitivity based on | |
c906108c SS |
375 | the current modes and the current language. |
376 | If SHOW is non-zero, then print out the current language, | |
377 | type and range checking status. */ | |
378 | static void | |
63872f9d | 379 | set_type_range_case (void) |
c906108c SS |
380 | { |
381 | ||
382 | if (range_mode == range_mode_auto) | |
383 | range_check = current_language->la_range_check; | |
384 | ||
385 | if (type_mode == type_mode_auto) | |
386 | type_check = current_language->la_type_check; | |
387 | ||
63872f9d JG |
388 | if (case_mode == case_mode_auto) |
389 | case_sensitivity = current_language->la_case_sensitivity; | |
390 | ||
c5aa993b JM |
391 | set_type_str (); |
392 | set_range_str (); | |
63872f9d | 393 | set_case_str (); |
c906108c SS |
394 | } |
395 | ||
396 | /* Set current language to (enum language) LANG. Returns previous language. */ | |
397 | ||
398 | enum language | |
fba45db2 | 399 | set_language (enum language lang) |
c906108c SS |
400 | { |
401 | int i; | |
402 | enum language prev_language; | |
403 | ||
404 | prev_language = current_language->la_language; | |
405 | ||
c5aa993b JM |
406 | for (i = 0; i < languages_size; i++) |
407 | { | |
408 | if (languages[i]->la_language == lang) | |
409 | { | |
410 | current_language = languages[i]; | |
63872f9d | 411 | set_type_range_case (); |
c5aa993b JM |
412 | set_lang_str (); |
413 | break; | |
414 | } | |
c906108c | 415 | } |
c906108c SS |
416 | |
417 | return prev_language; | |
418 | } | |
419 | \f | |
420 | /* This page contains functions that update the global vars | |
421 | language, type and range. */ | |
422 | static void | |
fba45db2 | 423 | set_lang_str (void) |
c906108c | 424 | { |
c5aa993b | 425 | char *prefix = ""; |
c906108c | 426 | |
ccdaf797 PDM |
427 | if (language) |
428 | free (language); | |
c5aa993b JM |
429 | if (language_mode == language_mode_auto) |
430 | prefix = "auto; currently "; | |
c906108c | 431 | |
c5aa993b | 432 | language = concat (prefix, current_language->la_name, NULL); |
c906108c SS |
433 | } |
434 | ||
435 | static void | |
fba45db2 | 436 | set_type_str (void) |
c906108c | 437 | { |
c4093a6a | 438 | char *tmp = NULL, *prefix = ""; |
c906108c | 439 | |
ccdaf797 PDM |
440 | if (type) |
441 | free (type); | |
c5aa993b JM |
442 | if (type_mode == type_mode_auto) |
443 | prefix = "auto; currently "; | |
c906108c | 444 | |
c5aa993b JM |
445 | switch (type_check) |
446 | { | |
447 | case type_check_on: | |
c906108c SS |
448 | tmp = "on"; |
449 | break; | |
c5aa993b | 450 | case type_check_off: |
c906108c SS |
451 | tmp = "off"; |
452 | break; | |
c5aa993b | 453 | case type_check_warn: |
c906108c SS |
454 | tmp = "warn"; |
455 | break; | |
c5aa993b | 456 | default: |
c906108c | 457 | error ("Unrecognized type check setting."); |
c5aa993b | 458 | } |
c906108c | 459 | |
c5aa993b | 460 | type = concat (prefix, tmp, NULL); |
c906108c SS |
461 | } |
462 | ||
463 | static void | |
fba45db2 | 464 | set_range_str (void) |
c906108c | 465 | { |
c5aa993b | 466 | char *tmp, *pref = ""; |
c906108c | 467 | |
c5aa993b JM |
468 | if (range_mode == range_mode_auto) |
469 | pref = "auto; currently "; | |
c906108c | 470 | |
c5aa993b JM |
471 | switch (range_check) |
472 | { | |
473 | case range_check_on: | |
c906108c SS |
474 | tmp = "on"; |
475 | break; | |
c5aa993b | 476 | case range_check_off: |
c906108c SS |
477 | tmp = "off"; |
478 | break; | |
c5aa993b | 479 | case range_check_warn: |
c906108c SS |
480 | tmp = "warn"; |
481 | break; | |
c5aa993b | 482 | default: |
c906108c | 483 | error ("Unrecognized range check setting."); |
c5aa993b | 484 | } |
c906108c | 485 | |
ccdaf797 PDM |
486 | if (range) |
487 | free (range); | |
c5aa993b | 488 | range = concat (pref, tmp, NULL); |
c906108c SS |
489 | } |
490 | ||
63872f9d JG |
491 | static void |
492 | set_case_str() | |
493 | { | |
494 | char *tmp = NULL, *prefix = ""; | |
495 | ||
496 | if (case_mode==case_mode_auto) | |
497 | prefix = "auto; currently "; | |
498 | ||
499 | switch (case_sensitivity) | |
500 | { | |
501 | case case_sensitive_on: | |
502 | tmp = "on"; | |
503 | break; | |
504 | case case_sensitive_off: | |
505 | tmp = "off"; | |
506 | break; | |
507 | default: | |
508 | error ("Unrecognized case-sensitive setting."); | |
509 | } | |
510 | ||
511 | free (case_sensitive); | |
512 | case_sensitive = concat (prefix, tmp, NULL); | |
513 | } | |
c906108c SS |
514 | |
515 | /* Print out the current language settings: language, range and | |
516 | type checking. If QUIETLY, print only what has changed. */ | |
517 | ||
518 | void | |
fba45db2 | 519 | language_info (int quietly) |
c906108c SS |
520 | { |
521 | if (quietly && expected_language == current_language) | |
522 | return; | |
523 | ||
524 | expected_language = current_language; | |
c5aa993b JM |
525 | printf_unfiltered ("Current language: %s\n", language); |
526 | show_language_command ((char *) 0, 1); | |
c906108c SS |
527 | |
528 | if (!quietly) | |
529 | { | |
c5aa993b JM |
530 | printf_unfiltered ("Type checking: %s\n", type); |
531 | show_type_command ((char *) 0, 1); | |
532 | printf_unfiltered ("Range checking: %s\n", range); | |
533 | show_range_command ((char *) 0, 1); | |
63872f9d JG |
534 | printf_unfiltered ("Case sensitivity: %s\n", case_sensitive); |
535 | show_case_command ((char *) 0, 1); | |
c906108c SS |
536 | } |
537 | } | |
538 | \f | |
539 | /* Return the result of a binary operation. */ | |
540 | ||
c5aa993b | 541 | #if 0 /* Currently unused */ |
c906108c SS |
542 | |
543 | struct type * | |
fba45db2 | 544 | binop_result_type (value_ptr v1, value_ptr v2) |
c906108c | 545 | { |
c5aa993b JM |
546 | int size, uns; |
547 | struct type *t1 = check_typedef (VALUE_TYPE (v1)); | |
548 | struct type *t2 = check_typedef (VALUE_TYPE (v2)); | |
549 | ||
550 | int l1 = TYPE_LENGTH (t1); | |
551 | int l2 = TYPE_LENGTH (t2); | |
552 | ||
553 | switch (current_language->la_language) | |
554 | { | |
555 | case language_c: | |
556 | case language_cplus: | |
557 | if (TYPE_CODE (t1) == TYPE_CODE_FLT) | |
558 | return TYPE_CODE (t2) == TYPE_CODE_FLT && l2 > l1 ? | |
559 | VALUE_TYPE (v2) : VALUE_TYPE (v1); | |
560 | else if (TYPE_CODE (t2) == TYPE_CODE_FLT) | |
561 | return TYPE_CODE (t1) == TYPE_CODE_FLT && l1 > l2 ? | |
562 | VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
563 | else if (TYPE_UNSIGNED (t1) && l1 > l2) | |
564 | return VALUE_TYPE (v1); | |
565 | else if (TYPE_UNSIGNED (t2) && l2 > l1) | |
566 | return VALUE_TYPE (v2); | |
567 | else /* Both are signed. Result is the longer type */ | |
568 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
c906108c | 569 | break; |
c5aa993b | 570 | case language_m2: |
c906108c | 571 | /* If we are doing type-checking, l1 should equal l2, so this is |
c5aa993b JM |
572 | not needed. */ |
573 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
c906108c | 574 | break; |
c5aa993b JM |
575 | case language_chill: |
576 | error ("Missing Chill support in function binop_result_check."); /*FIXME */ | |
577 | } | |
578 | abort (); | |
579 | return (struct type *) 0; /* For lint */ | |
c906108c SS |
580 | } |
581 | ||
c5aa993b | 582 | #endif /* 0 */ |
c906108c | 583 | \f |
c5aa993b | 584 | |
c906108c SS |
585 | /* This page contains functions that return format strings for |
586 | printf for printing out numbers in different formats */ | |
587 | ||
588 | /* Returns the appropriate printf format for hexadecimal | |
589 | numbers. */ | |
590 | char * | |
fba45db2 | 591 | local_hex_format_custom (char *pre) |
c906108c | 592 | { |
c5aa993b JM |
593 | static char form[50]; |
594 | ||
595 | strcpy (form, local_hex_format_prefix ()); | |
596 | strcat (form, "%"); | |
597 | strcat (form, pre); | |
598 | strcat (form, local_hex_format_specifier ()); | |
599 | strcat (form, local_hex_format_suffix ()); | |
600 | return form; | |
c906108c SS |
601 | } |
602 | ||
7acb79c8 AC |
603 | #if 0 |
604 | /* FIXME: cagney/2000-03-04: This function does not appear to be used. | |
605 | It can be deleted once 5.0 has been released. */ | |
606 | /* FIXME: cagney/2000-03-04: This code assumes that the compiler | |
607 | supports ``long long''. */ | |
c4093a6a JM |
608 | /* Converts a number to hexadecimal (without leading "0x") and stores it in a |
609 | static string. Returns a pointer to this string. */ | |
610 | ||
611 | char * | |
fba45db2 | 612 | longest_raw_hex_string (LONGEST num) |
c4093a6a JM |
613 | { |
614 | static char res_longest_raw_hex_string[50]; | |
615 | long long ll = num; /* MERGEBUG ?? see below */ | |
616 | res_longest_raw_hex_string[0] = 0; | |
617 | /* MERGEBUG ?? As a quick fix I am replacing this with sprintf | |
618 | strcat_address_numeric (num, 0, res_longest_raw_hex_string, 50); | |
619 | */ | |
620 | ||
621 | sprintf (res_longest_raw_hex_string, "%llx", ll); | |
622 | return res_longest_raw_hex_string; | |
623 | } | |
7acb79c8 | 624 | #endif |
c4093a6a | 625 | |
c906108c SS |
626 | /* Converts a number to hexadecimal and stores it in a static |
627 | string. Returns a pointer to this string. */ | |
628 | char * | |
fba45db2 | 629 | local_hex_string (unsigned long num) |
c906108c | 630 | { |
c5aa993b | 631 | static char res[50]; |
c906108c | 632 | |
c5aa993b JM |
633 | sprintf (res, local_hex_format (), num); |
634 | return res; | |
c906108c SS |
635 | } |
636 | ||
c4093a6a JM |
637 | /* Converts a LONGEST number to hexadecimal and stores it in a static |
638 | string. Returns a pointer to this string. */ | |
639 | char * | |
fba45db2 | 640 | longest_local_hex_string (LONGEST num) |
c4093a6a JM |
641 | { |
642 | return longest_local_hex_string_custom (num, "l"); | |
643 | } | |
644 | ||
c906108c SS |
645 | /* Converts a number to custom hexadecimal and stores it in a static |
646 | string. Returns a pointer to this string. */ | |
647 | char * | |
fba45db2 | 648 | local_hex_string_custom (unsigned long num, char *pre) |
c906108c | 649 | { |
c5aa993b | 650 | static char res[50]; |
c906108c | 651 | |
c5aa993b JM |
652 | sprintf (res, local_hex_format_custom (pre), num); |
653 | return res; | |
c906108c SS |
654 | } |
655 | ||
c4093a6a JM |
656 | /* Converts a LONGEST number to custom hexadecimal and stores it in a static |
657 | string. Returns a pointer to this string. Note that the width parameter | |
658 | should end with "l", e.g. "08l" as with calls to local_hex_string_custom */ | |
659 | ||
660 | char * | |
fba45db2 | 661 | longest_local_hex_string_custom (LONGEST num, char *width) |
c4093a6a JM |
662 | { |
663 | #define RESULT_BUF_LEN 50 | |
664 | static char res2[RESULT_BUF_LEN]; | |
665 | char format[RESULT_BUF_LEN]; | |
666 | #if !defined (PRINTF_HAS_LONG_LONG) | |
667 | int field_width; | |
668 | int num_len; | |
669 | int num_pad_chars; | |
670 | char *pad_char; /* string with one character */ | |
671 | int pad_on_left; | |
672 | char *parse_ptr; | |
673 | char temp_nbr_buf[RESULT_BUF_LEN]; | |
674 | #endif | |
675 | ||
676 | #ifndef CC_HAS_LONG_LONG | |
677 | /* If there is no long long, then LONGEST should be just long and we | |
678 | can use local_hex_string_custom | |
679 | */ | |
680 | return local_hex_string_custom ((unsigned long) num, width); | |
392746e5 | 681 | #elif defined (PRINTF_HAS_LONG_LONG) |
c4093a6a JM |
682 | /* Just use printf. */ |
683 | strcpy (format, local_hex_format_prefix ()); /* 0x */ | |
684 | strcat (format, "%"); | |
685 | strcat (format, width); /* e.g. "08l" */ | |
686 | strcat (format, "l"); /* need "ll" for long long */ | |
687 | strcat (format, local_hex_format_specifier ()); /* "x" */ | |
688 | strcat (format, local_hex_format_suffix ()); /* "" */ | |
689 | sprintf (res2, format, num); | |
690 | return res2; | |
691 | #else /* !defined (PRINTF_HAS_LONG_LONG) */ | |
692 | /* Use strcat_address_numeric to print the number into a string, then | |
693 | build the result string from local_hex_format_prefix, padding and | |
694 | the hex representation as indicated by "width". */ | |
695 | ||
696 | temp_nbr_buf[0] = 0; | |
697 | /* With use_local == 0, we don't get the leading "0x" prefix. */ | |
698 | /* MERGEBUG ?? As a quick fix I am replacing this call to | |
699 | strcat_address_numeric with sprintf | |
700 | strcat_address_numeric(num, 0, temp_nbr_buf, RESULT_BUF_LEN); | |
701 | */ | |
702 | ||
703 | { | |
704 | long long ll = num; | |
705 | sprintf (temp_nbr_buf, "%llx", ll); | |
706 | } | |
707 | /* parse width */ | |
708 | parse_ptr = width; | |
709 | pad_on_left = 1; | |
710 | pad_char = " "; | |
711 | if (*parse_ptr == '-') | |
712 | { | |
713 | parse_ptr++; | |
714 | pad_on_left = 0; | |
715 | } | |
716 | if (*parse_ptr == '0') | |
717 | { | |
718 | parse_ptr++; | |
719 | if (pad_on_left) | |
720 | pad_char = "0"; /* If padding is on the right, it is blank */ | |
721 | } | |
722 | field_width = atoi (parse_ptr); | |
723 | num_len = strlen (temp_nbr_buf); | |
724 | num_pad_chars = field_width - strlen (temp_nbr_buf); /* possibly negative */ | |
725 | ||
726 | if (strlen (local_hex_format_prefix ()) + num_len + num_pad_chars | |
727 | < RESULT_BUF_LEN) /* paranoia */ | |
728 | internal_error ("longest_local_hex_string_custom: insufficient space to store result"); | |
729 | ||
730 | strcpy (res2, local_hex_format_prefix ()); | |
731 | if (pad_on_left) | |
732 | { | |
733 | while (num_pad_chars > 0) | |
734 | { | |
735 | strcat (res2, pad_char); | |
736 | num_pad_chars--; | |
737 | } | |
738 | } | |
739 | strcat (res2, temp_nbr_buf); | |
740 | if (!pad_on_left) | |
741 | { | |
742 | while (num_pad_chars > 0) | |
743 | { | |
744 | strcat (res2, pad_char); | |
745 | num_pad_chars--; | |
746 | } | |
747 | } | |
748 | return res2; | |
749 | #endif | |
750 | ||
751 | } /* longest_local_hex_string_custom */ | |
752 | ||
c906108c SS |
753 | /* Returns the appropriate printf format for octal |
754 | numbers. */ | |
755 | char * | |
fba45db2 | 756 | local_octal_format_custom (char *pre) |
c906108c | 757 | { |
c5aa993b JM |
758 | static char form[50]; |
759 | ||
760 | strcpy (form, local_octal_format_prefix ()); | |
761 | strcat (form, "%"); | |
762 | strcat (form, pre); | |
763 | strcat (form, local_octal_format_specifier ()); | |
764 | strcat (form, local_octal_format_suffix ()); | |
765 | return form; | |
c906108c SS |
766 | } |
767 | ||
768 | /* Returns the appropriate printf format for decimal numbers. */ | |
769 | char * | |
fba45db2 | 770 | local_decimal_format_custom (char *pre) |
c906108c | 771 | { |
c5aa993b JM |
772 | static char form[50]; |
773 | ||
774 | strcpy (form, local_decimal_format_prefix ()); | |
775 | strcat (form, "%"); | |
776 | strcat (form, pre); | |
777 | strcat (form, local_decimal_format_specifier ()); | |
778 | strcat (form, local_decimal_format_suffix ()); | |
779 | return form; | |
c906108c SS |
780 | } |
781 | \f | |
782 | #if 0 | |
783 | /* This page contains functions that are used in type/range checking. | |
784 | They all return zero if the type/range check fails. | |
785 | ||
786 | It is hoped that these will make extending GDB to parse different | |
787 | languages a little easier. These are primarily used in eval.c when | |
788 | evaluating expressions and making sure that their types are correct. | |
789 | Instead of having a mess of conjucted/disjuncted expressions in an "if", | |
790 | the ideas of type can be wrapped up in the following functions. | |
791 | ||
792 | Note that some of them are not currently dependent upon which language | |
793 | is currently being parsed. For example, floats are the same in | |
794 | C and Modula-2 (ie. the only floating point type has TYPE_CODE of | |
795 | TYPE_CODE_FLT), while booleans are different. */ | |
796 | ||
797 | /* Returns non-zero if its argument is a simple type. This is the same for | |
798 | both Modula-2 and for C. In the C case, TYPE_CODE_CHAR will never occur, | |
799 | and thus will never cause the failure of the test. */ | |
800 | int | |
fba45db2 | 801 | simple_type (struct type *type) |
c906108c SS |
802 | { |
803 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
804 | switch (TYPE_CODE (type)) |
805 | { | |
806 | case TYPE_CODE_INT: | |
807 | case TYPE_CODE_CHAR: | |
808 | case TYPE_CODE_ENUM: | |
809 | case TYPE_CODE_FLT: | |
810 | case TYPE_CODE_RANGE: | |
811 | case TYPE_CODE_BOOL: | |
812 | return 1; | |
c906108c | 813 | |
c5aa993b JM |
814 | default: |
815 | return 0; | |
816 | } | |
c906108c SS |
817 | } |
818 | ||
819 | /* Returns non-zero if its argument is of an ordered type. | |
820 | An ordered type is one in which the elements can be tested for the | |
821 | properties of "greater than", "less than", etc, or for which the | |
822 | operations "increment" or "decrement" make sense. */ | |
823 | int | |
fba45db2 | 824 | ordered_type (struct type *type) |
c906108c SS |
825 | { |
826 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
827 | switch (TYPE_CODE (type)) |
828 | { | |
829 | case TYPE_CODE_INT: | |
830 | case TYPE_CODE_CHAR: | |
831 | case TYPE_CODE_ENUM: | |
832 | case TYPE_CODE_FLT: | |
833 | case TYPE_CODE_RANGE: | |
834 | return 1; | |
c906108c | 835 | |
c5aa993b JM |
836 | default: |
837 | return 0; | |
838 | } | |
c906108c SS |
839 | } |
840 | ||
841 | /* Returns non-zero if the two types are the same */ | |
842 | int | |
fba45db2 | 843 | same_type (struct type *arg1, struct type *arg2) |
c906108c SS |
844 | { |
845 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
846 | if (structured_type (arg1) ? !structured_type (arg2) : structured_type (arg2)) |
847 | /* One is structured and one isn't */ | |
848 | return 0; | |
849 | else if (structured_type (arg1) && structured_type (arg2)) | |
850 | return arg1 == arg2; | |
851 | else if (numeric_type (arg1) && numeric_type (arg2)) | |
852 | return (TYPE_CODE (arg2) == TYPE_CODE (arg1)) && | |
853 | (TYPE_UNSIGNED (arg1) == TYPE_UNSIGNED (arg2)) | |
854 | ? 1 : 0; | |
855 | else | |
856 | return arg1 == arg2; | |
c906108c SS |
857 | } |
858 | ||
859 | /* Returns non-zero if the type is integral */ | |
860 | int | |
fba45db2 | 861 | integral_type (struct type *type) |
c906108c SS |
862 | { |
863 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
864 | switch (current_language->la_language) |
865 | { | |
866 | case language_c: | |
867 | case language_cplus: | |
868 | return (TYPE_CODE (type) != TYPE_CODE_INT) && | |
869 | (TYPE_CODE (type) != TYPE_CODE_ENUM) ? 0 : 1; | |
870 | case language_m2: | |
750ba382 | 871 | case language_pascal: |
c5aa993b JM |
872 | return TYPE_CODE (type) != TYPE_CODE_INT ? 0 : 1; |
873 | case language_chill: | |
874 | error ("Missing Chill support in function integral_type."); /*FIXME */ | |
875 | default: | |
c906108c | 876 | error ("Language not supported."); |
c5aa993b | 877 | } |
c906108c SS |
878 | } |
879 | ||
880 | /* Returns non-zero if the value is numeric */ | |
881 | int | |
fba45db2 | 882 | numeric_type (struct type *type) |
c906108c SS |
883 | { |
884 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
885 | switch (TYPE_CODE (type)) |
886 | { | |
887 | case TYPE_CODE_INT: | |
888 | case TYPE_CODE_FLT: | |
889 | return 1; | |
c906108c | 890 | |
c5aa993b JM |
891 | default: |
892 | return 0; | |
893 | } | |
c906108c SS |
894 | } |
895 | ||
896 | /* Returns non-zero if the value is a character type */ | |
897 | int | |
fba45db2 | 898 | character_type (struct type *type) |
c906108c SS |
899 | { |
900 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
901 | switch (current_language->la_language) |
902 | { | |
903 | case language_chill: | |
904 | case language_m2: | |
750ba382 | 905 | case language_pascal: |
c5aa993b JM |
906 | return TYPE_CODE (type) != TYPE_CODE_CHAR ? 0 : 1; |
907 | ||
908 | case language_c: | |
909 | case language_cplus: | |
910 | return (TYPE_CODE (type) == TYPE_CODE_INT) && | |
911 | TYPE_LENGTH (type) == sizeof (char) | |
912 | ? 1 : 0; | |
913 | default: | |
c906108c | 914 | return (0); |
c5aa993b | 915 | } |
c906108c SS |
916 | } |
917 | ||
918 | /* Returns non-zero if the value is a string type */ | |
919 | int | |
fba45db2 | 920 | string_type (struct type *type) |
c906108c SS |
921 | { |
922 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
923 | switch (current_language->la_language) |
924 | { | |
925 | case language_chill: | |
926 | case language_m2: | |
750ba382 | 927 | case language_pascal: |
c5aa993b JM |
928 | return TYPE_CODE (type) != TYPE_CODE_STRING ? 0 : 1; |
929 | ||
930 | case language_c: | |
931 | case language_cplus: | |
c906108c SS |
932 | /* C does not have distinct string type. */ |
933 | return (0); | |
c5aa993b | 934 | default: |
c906108c | 935 | return (0); |
c5aa993b | 936 | } |
c906108c SS |
937 | } |
938 | ||
939 | /* Returns non-zero if the value is a boolean type */ | |
940 | int | |
fba45db2 | 941 | boolean_type (struct type *type) |
c906108c SS |
942 | { |
943 | CHECK_TYPEDEF (type); | |
944 | if (TYPE_CODE (type) == TYPE_CODE_BOOL) | |
945 | return 1; | |
c5aa993b | 946 | switch (current_language->la_language) |
c906108c SS |
947 | { |
948 | case language_c: | |
949 | case language_cplus: | |
950 | /* Might be more cleanly handled by having a TYPE_CODE_INT_NOT_BOOL | |
c5aa993b | 951 | for CHILL and such languages, or a TYPE_CODE_INT_OR_BOOL for C. */ |
c906108c SS |
952 | if (TYPE_CODE (type) == TYPE_CODE_INT) |
953 | return 1; | |
c5aa993b | 954 | default: |
c906108c | 955 | break; |
c5aa993b | 956 | } |
c906108c SS |
957 | return 0; |
958 | } | |
959 | ||
960 | /* Returns non-zero if the value is a floating-point type */ | |
961 | int | |
fba45db2 | 962 | float_type (struct type *type) |
c906108c SS |
963 | { |
964 | CHECK_TYPEDEF (type); | |
c5aa993b | 965 | return TYPE_CODE (type) == TYPE_CODE_FLT; |
c906108c SS |
966 | } |
967 | ||
968 | /* Returns non-zero if the value is a pointer type */ | |
969 | int | |
fba45db2 | 970 | pointer_type (struct type *type) |
c906108c | 971 | { |
c5aa993b JM |
972 | return TYPE_CODE (type) == TYPE_CODE_PTR || |
973 | TYPE_CODE (type) == TYPE_CODE_REF; | |
c906108c SS |
974 | } |
975 | ||
976 | /* Returns non-zero if the value is a structured type */ | |
977 | int | |
fba45db2 | 978 | structured_type (struct type *type) |
c906108c SS |
979 | { |
980 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
981 | switch (current_language->la_language) |
982 | { | |
983 | case language_c: | |
984 | case language_cplus: | |
985 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || | |
986 | (TYPE_CODE (type) == TYPE_CODE_UNION) || | |
987 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
750ba382 PM |
988 | case language_pascal: |
989 | return (TYPE_CODE(type) == TYPE_CODE_STRUCT) || | |
990 | (TYPE_CODE(type) == TYPE_CODE_UNION) || | |
991 | (TYPE_CODE(type) == TYPE_CODE_SET) || | |
992 | (TYPE_CODE(type) == TYPE_CODE_ARRAY); | |
c5aa993b JM |
993 | case language_m2: |
994 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || | |
995 | (TYPE_CODE (type) == TYPE_CODE_SET) || | |
996 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
997 | case language_chill: | |
998 | error ("Missing Chill support in function structured_type."); /*FIXME */ | |
999 | default: | |
c906108c | 1000 | return (0); |
c5aa993b | 1001 | } |
c906108c SS |
1002 | } |
1003 | #endif | |
1004 | \f | |
1005 | struct type * | |
fba45db2 | 1006 | lang_bool_type (void) |
c906108c SS |
1007 | { |
1008 | struct symbol *sym; | |
1009 | struct type *type; | |
c5aa993b | 1010 | switch (current_language->la_language) |
c906108c SS |
1011 | { |
1012 | case language_chill: | |
1013 | return builtin_type_chill_bool; | |
1014 | case language_fortran: | |
1015 | sym = lookup_symbol ("logical", NULL, VAR_NAMESPACE, NULL, NULL); | |
1016 | if (sym) | |
1017 | { | |
1018 | type = SYMBOL_TYPE (sym); | |
1019 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
1020 | return type; | |
1021 | } | |
1022 | return builtin_type_f_logical_s2; | |
1023 | case language_cplus: | |
750ba382 PM |
1024 | case language_pascal: |
1025 | if (current_language->la_language==language_cplus) | |
1026 | {sym = lookup_symbol ("bool", NULL, VAR_NAMESPACE, NULL, NULL);} | |
1027 | else | |
1028 | {sym = lookup_symbol ("boolean", NULL, VAR_NAMESPACE, NULL, NULL);} | |
c906108c SS |
1029 | if (sym) |
1030 | { | |
1031 | type = SYMBOL_TYPE (sym); | |
1032 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
1033 | return type; | |
1034 | } | |
1035 | return builtin_type_bool; | |
8caabe69 AG |
1036 | case language_java: |
1037 | sym = lookup_symbol ("boolean", NULL, VAR_NAMESPACE, NULL, NULL); | |
1038 | if (sym) | |
1039 | { | |
1040 | type = SYMBOL_TYPE (sym); | |
1041 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
1042 | return type; | |
1043 | } | |
1044 | return java_boolean_type; | |
c906108c SS |
1045 | default: |
1046 | return builtin_type_int; | |
1047 | } | |
1048 | } | |
1049 | \f | |
1050 | /* This page contains functions that return info about | |
1051 | (struct value) values used in GDB. */ | |
1052 | ||
1053 | /* Returns non-zero if the value VAL represents a true value. */ | |
1054 | int | |
fba45db2 | 1055 | value_true (value_ptr val) |
c906108c SS |
1056 | { |
1057 | /* It is possible that we should have some sort of error if a non-boolean | |
1058 | value is used in this context. Possibly dependent on some kind of | |
1059 | "boolean-checking" option like range checking. But it should probably | |
1060 | not depend on the language except insofar as is necessary to identify | |
1061 | a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean | |
1062 | should be an error, probably). */ | |
1063 | return !value_logical_not (val); | |
1064 | } | |
1065 | \f | |
1066 | /* Returns non-zero if the operator OP is defined on | |
1067 | the values ARG1 and ARG2. */ | |
1068 | ||
c5aa993b | 1069 | #if 0 /* Currently unused */ |
c906108c SS |
1070 | |
1071 | void | |
fba45db2 | 1072 | binop_type_check (value_ptr arg1, value_ptr arg2, int op) |
c906108c | 1073 | { |
c5aa993b | 1074 | struct type *t1, *t2; |
c906108c | 1075 | |
c5aa993b JM |
1076 | /* If we're not checking types, always return success. */ |
1077 | if (!STRICT_TYPE) | |
1078 | return; | |
1079 | ||
1080 | t1 = VALUE_TYPE (arg1); | |
1081 | if (arg2 != NULL) | |
1082 | t2 = VALUE_TYPE (arg2); | |
1083 | else | |
1084 | t2 = NULL; | |
c906108c | 1085 | |
c5aa993b JM |
1086 | switch (op) |
1087 | { | |
1088 | case BINOP_ADD: | |
1089 | case BINOP_SUB: | |
1090 | if ((numeric_type (t1) && pointer_type (t2)) || | |
1091 | (pointer_type (t1) && numeric_type (t2))) | |
1092 | { | |
1093 | warning ("combining pointer and integer.\n"); | |
1094 | break; | |
1095 | } | |
1096 | case BINOP_MUL: | |
1097 | case BINOP_LSH: | |
1098 | case BINOP_RSH: | |
1099 | if (!numeric_type (t1) || !numeric_type (t2)) | |
1100 | type_op_error ("Arguments to %s must be numbers.", op); | |
1101 | else if (!same_type (t1, t2)) | |
1102 | type_op_error ("Arguments to %s must be of the same type.", op); | |
c906108c SS |
1103 | break; |
1104 | ||
c5aa993b JM |
1105 | case BINOP_LOGICAL_AND: |
1106 | case BINOP_LOGICAL_OR: | |
1107 | if (!boolean_type (t1) || !boolean_type (t2)) | |
1108 | type_op_error ("Arguments to %s must be of boolean type.", op); | |
c906108c SS |
1109 | break; |
1110 | ||
c5aa993b JM |
1111 | case BINOP_EQUAL: |
1112 | if ((pointer_type (t1) && !(pointer_type (t2) || integral_type (t2))) || | |
1113 | (pointer_type (t2) && !(pointer_type (t1) || integral_type (t1)))) | |
1114 | type_op_error ("A pointer can only be compared to an integer or pointer.", op); | |
1115 | else if ((pointer_type (t1) && integral_type (t2)) || | |
1116 | (integral_type (t1) && pointer_type (t2))) | |
1117 | { | |
1118 | warning ("combining integer and pointer.\n"); | |
1119 | break; | |
1120 | } | |
1121 | else if (!simple_type (t1) || !simple_type (t2)) | |
1122 | type_op_error ("Arguments to %s must be of simple type.", op); | |
1123 | else if (!same_type (t1, t2)) | |
1124 | type_op_error ("Arguments to %s must be of the same type.", op); | |
c906108c SS |
1125 | break; |
1126 | ||
c5aa993b JM |
1127 | case BINOP_REM: |
1128 | case BINOP_MOD: | |
1129 | if (!integral_type (t1) || !integral_type (t2)) | |
1130 | type_op_error ("Arguments to %s must be of integral type.", op); | |
c906108c SS |
1131 | break; |
1132 | ||
c5aa993b JM |
1133 | case BINOP_LESS: |
1134 | case BINOP_GTR: | |
1135 | case BINOP_LEQ: | |
1136 | case BINOP_GEQ: | |
1137 | if (!ordered_type (t1) || !ordered_type (t2)) | |
1138 | type_op_error ("Arguments to %s must be of ordered type.", op); | |
1139 | else if (!same_type (t1, t2)) | |
1140 | type_op_error ("Arguments to %s must be of the same type.", op); | |
c906108c SS |
1141 | break; |
1142 | ||
c5aa993b JM |
1143 | case BINOP_ASSIGN: |
1144 | if (pointer_type (t1) && !integral_type (t2)) | |
1145 | type_op_error ("A pointer can only be assigned an integer.", op); | |
1146 | else if (pointer_type (t1) && integral_type (t2)) | |
1147 | { | |
1148 | warning ("combining integer and pointer."); | |
1149 | break; | |
1150 | } | |
1151 | else if (!simple_type (t1) || !simple_type (t2)) | |
1152 | type_op_error ("Arguments to %s must be of simple type.", op); | |
1153 | else if (!same_type (t1, t2)) | |
1154 | type_op_error ("Arguments to %s must be of the same type.", op); | |
c906108c SS |
1155 | break; |
1156 | ||
1157 | case BINOP_CONCAT: | |
1158 | /* FIXME: Needs to handle bitstrings as well. */ | |
c5aa993b JM |
1159 | if (!(string_type (t1) || character_type (t1) || integral_type (t1)) |
1160 | || !(string_type (t2) || character_type (t2) || integral_type (t2))) | |
1161 | type_op_error ("Arguments to %s must be strings or characters.", op); | |
c906108c SS |
1162 | break; |
1163 | ||
c5aa993b | 1164 | /* Unary checks -- arg2 is null */ |
c906108c | 1165 | |
c5aa993b JM |
1166 | case UNOP_LOGICAL_NOT: |
1167 | if (!boolean_type (t1)) | |
1168 | type_op_error ("Argument to %s must be of boolean type.", op); | |
c906108c SS |
1169 | break; |
1170 | ||
c5aa993b JM |
1171 | case UNOP_PLUS: |
1172 | case UNOP_NEG: | |
1173 | if (!numeric_type (t1)) | |
1174 | type_op_error ("Argument to %s must be of numeric type.", op); | |
c906108c SS |
1175 | break; |
1176 | ||
c5aa993b JM |
1177 | case UNOP_IND: |
1178 | if (integral_type (t1)) | |
1179 | { | |
1180 | warning ("combining pointer and integer.\n"); | |
1181 | break; | |
1182 | } | |
1183 | else if (!pointer_type (t1)) | |
1184 | type_op_error ("Argument to %s must be a pointer.", op); | |
c906108c SS |
1185 | break; |
1186 | ||
c5aa993b JM |
1187 | case UNOP_PREINCREMENT: |
1188 | case UNOP_POSTINCREMENT: | |
1189 | case UNOP_PREDECREMENT: | |
1190 | case UNOP_POSTDECREMENT: | |
1191 | if (!ordered_type (t1)) | |
1192 | type_op_error ("Argument to %s must be of an ordered type.", op); | |
c906108c SS |
1193 | break; |
1194 | ||
c5aa993b | 1195 | default: |
c906108c | 1196 | /* Ok. The following operators have different meanings in |
c5aa993b JM |
1197 | different languages. */ |
1198 | switch (current_language->la_language) | |
1199 | { | |
c906108c | 1200 | #ifdef _LANG_c |
c5aa993b JM |
1201 | case language_c: |
1202 | case language_cplus: | |
1203 | switch (op) | |
1204 | { | |
1205 | case BINOP_DIV: | |
1206 | if (!numeric_type (t1) || !numeric_type (t2)) | |
1207 | type_op_error ("Arguments to %s must be numbers.", op); | |
1208 | break; | |
1209 | } | |
1210 | break; | |
c906108c SS |
1211 | #endif |
1212 | ||
1213 | #ifdef _LANG_m2 | |
c5aa993b JM |
1214 | case language_m2: |
1215 | switch (op) | |
1216 | { | |
1217 | case BINOP_DIV: | |
1218 | if (!float_type (t1) || !float_type (t2)) | |
1219 | type_op_error ("Arguments to %s must be floating point numbers.", op); | |
1220 | break; | |
1221 | case BINOP_INTDIV: | |
1222 | if (!integral_type (t1) || !integral_type (t2)) | |
1223 | type_op_error ("Arguments to %s must be of integral type.", op); | |
1224 | break; | |
1225 | } | |
c906108c SS |
1226 | #endif |
1227 | ||
750ba382 PM |
1228 | #ifdef _LANG_pascal |
1229 | case language_pascal: | |
1230 | switch(op) | |
1231 | { | |
1232 | case BINOP_DIV: | |
1233 | if (!float_type(t1) && !float_type(t2)) | |
1234 | type_op_error ("Arguments to %s must be floating point numbers.",op); | |
1235 | break; | |
1236 | case BINOP_INTDIV: | |
1237 | if (!integral_type(t1) || !integral_type(t2)) | |
1238 | type_op_error ("Arguments to %s must be of integral type.",op); | |
1239 | break; | |
1240 | } | |
1241 | #endif | |
1242 | ||
c906108c | 1243 | #ifdef _LANG_chill |
c5aa993b JM |
1244 | case language_chill: |
1245 | error ("Missing Chill support in function binop_type_check."); /*FIXME */ | |
c906108c SS |
1246 | #endif |
1247 | ||
c5aa993b JM |
1248 | } |
1249 | } | |
c906108c SS |
1250 | } |
1251 | ||
c5aa993b | 1252 | #endif /* 0 */ |
c906108c | 1253 | \f |
c5aa993b | 1254 | |
c906108c SS |
1255 | /* This page contains functions for the printing out of |
1256 | error messages that occur during type- and range- | |
1257 | checking. */ | |
1258 | ||
1259 | /* Prints the format string FMT with the operator as a string | |
1260 | corresponding to the opcode OP. If FATAL is non-zero, then | |
1261 | this is an error and error () is called. Otherwise, it is | |
1262 | a warning and printf() is called. */ | |
1263 | void | |
fba45db2 | 1264 | op_error (char *fmt, enum exp_opcode op, int fatal) |
c906108c | 1265 | { |
c5aa993b JM |
1266 | if (fatal) |
1267 | error (fmt, op_string (op)); | |
1268 | else | |
1269 | { | |
1270 | warning (fmt, op_string (op)); | |
1271 | } | |
c906108c SS |
1272 | } |
1273 | ||
1274 | /* These are called when a language fails a type- or range-check. | |
1275 | The first argument should be a printf()-style format string, and | |
1276 | the rest of the arguments should be its arguments. If | |
1277 | [type|range]_check is [type|range]_check_on, then return_to_top_level() | |
1278 | is called in the style of error (). Otherwise, the message is prefixed | |
1279 | by the value of warning_pre_print and we do not return to the top level. */ | |
1280 | ||
1281 | void | |
c5aa993b | 1282 | type_error (char *string,...) |
c906108c | 1283 | { |
c5aa993b | 1284 | va_list args; |
c5aa993b | 1285 | va_start (args, string); |
c906108c | 1286 | |
c5aa993b JM |
1287 | if (type_check == type_check_warn) |
1288 | fprintf_filtered (gdb_stderr, warning_pre_print); | |
1289 | else | |
1290 | error_begin (); | |
c906108c | 1291 | |
c5aa993b JM |
1292 | vfprintf_filtered (gdb_stderr, string, args); |
1293 | fprintf_filtered (gdb_stderr, "\n"); | |
1294 | va_end (args); | |
1295 | if (type_check == type_check_on) | |
1296 | return_to_top_level (RETURN_ERROR); | |
c906108c SS |
1297 | } |
1298 | ||
1299 | void | |
c5aa993b | 1300 | range_error (char *string,...) |
c906108c | 1301 | { |
c5aa993b | 1302 | va_list args; |
c5aa993b | 1303 | va_start (args, string); |
c906108c | 1304 | |
c5aa993b JM |
1305 | if (range_check == range_check_warn) |
1306 | fprintf_filtered (gdb_stderr, warning_pre_print); | |
1307 | else | |
1308 | error_begin (); | |
c906108c | 1309 | |
c5aa993b JM |
1310 | vfprintf_filtered (gdb_stderr, string, args); |
1311 | fprintf_filtered (gdb_stderr, "\n"); | |
1312 | va_end (args); | |
1313 | if (range_check == range_check_on) | |
1314 | return_to_top_level (RETURN_ERROR); | |
c906108c | 1315 | } |
c906108c | 1316 | \f |
c5aa993b | 1317 | |
c906108c SS |
1318 | /* This page contains miscellaneous functions */ |
1319 | ||
1320 | /* Return the language enum for a given language string. */ | |
1321 | ||
1322 | enum language | |
fba45db2 | 1323 | language_enum (char *str) |
c906108c SS |
1324 | { |
1325 | int i; | |
1326 | ||
c5aa993b | 1327 | for (i = 0; i < languages_size; i++) |
c906108c SS |
1328 | if (STREQ (languages[i]->la_name, str)) |
1329 | return languages[i]->la_language; | |
1330 | ||
1331 | return language_unknown; | |
1332 | } | |
1333 | ||
1334 | /* Return the language struct for a given language enum. */ | |
1335 | ||
1336 | const struct language_defn * | |
fba45db2 | 1337 | language_def (enum language lang) |
c906108c SS |
1338 | { |
1339 | int i; | |
1340 | ||
c5aa993b JM |
1341 | for (i = 0; i < languages_size; i++) |
1342 | { | |
1343 | if (languages[i]->la_language == lang) | |
1344 | { | |
1345 | return languages[i]; | |
1346 | } | |
c906108c | 1347 | } |
c906108c SS |
1348 | return NULL; |
1349 | } | |
1350 | ||
1351 | /* Return the language as a string */ | |
1352 | char * | |
fba45db2 | 1353 | language_str (enum language lang) |
c906108c SS |
1354 | { |
1355 | int i; | |
1356 | ||
c5aa993b JM |
1357 | for (i = 0; i < languages_size; i++) |
1358 | { | |
1359 | if (languages[i]->la_language == lang) | |
1360 | { | |
1361 | return languages[i]->la_name; | |
1362 | } | |
c906108c | 1363 | } |
c906108c SS |
1364 | return "Unknown"; |
1365 | } | |
1366 | ||
1367 | static void | |
fba45db2 | 1368 | set_check (char *ignore, int from_tty) |
c906108c | 1369 | { |
c5aa993b JM |
1370 | printf_unfiltered ( |
1371 | "\"set check\" must be followed by the name of a check subcommand.\n"); | |
1372 | help_list (setchecklist, "set check ", -1, gdb_stdout); | |
c906108c SS |
1373 | } |
1374 | ||
1375 | static void | |
fba45db2 | 1376 | show_check (char *ignore, int from_tty) |
c906108c | 1377 | { |
c5aa993b | 1378 | cmd_show_list (showchecklist, from_tty, ""); |
c906108c SS |
1379 | } |
1380 | \f | |
1381 | /* Add a language to the set of known languages. */ | |
1382 | ||
1383 | void | |
fba45db2 | 1384 | add_language (const struct language_defn *lang) |
c906108c SS |
1385 | { |
1386 | if (lang->la_magic != LANG_MAGIC) | |
1387 | { | |
c5aa993b JM |
1388 | fprintf_unfiltered (gdb_stderr, "Magic number of %s language struct wrong\n", |
1389 | lang->la_name); | |
1390 | abort (); | |
c906108c SS |
1391 | } |
1392 | ||
1393 | if (!languages) | |
1394 | { | |
1395 | languages_allocsize = DEFAULT_ALLOCSIZE; | |
1396 | languages = (const struct language_defn **) xmalloc | |
1397 | (languages_allocsize * sizeof (*languages)); | |
1398 | } | |
1399 | if (languages_size >= languages_allocsize) | |
1400 | { | |
1401 | languages_allocsize *= 2; | |
1402 | languages = (const struct language_defn **) xrealloc ((char *) languages, | |
c5aa993b | 1403 | languages_allocsize * sizeof (*languages)); |
c906108c SS |
1404 | } |
1405 | languages[languages_size++] = lang; | |
1406 | } | |
1407 | ||
1408 | /* Define the language that is no language. */ | |
1409 | ||
1410 | static int | |
fba45db2 | 1411 | unk_lang_parser (void) |
c906108c SS |
1412 | { |
1413 | return 1; | |
1414 | } | |
1415 | ||
1416 | static void | |
fba45db2 | 1417 | unk_lang_error (char *msg) |
c906108c SS |
1418 | { |
1419 | error ("Attempted to parse an expression with unknown language"); | |
1420 | } | |
1421 | ||
1422 | static void | |
fba45db2 | 1423 | unk_lang_emit_char (register int c, struct ui_file *stream, int quoter) |
c906108c SS |
1424 | { |
1425 | error ("internal error - unimplemented function unk_lang_emit_char called."); | |
1426 | } | |
1427 | ||
1428 | static void | |
fba45db2 | 1429 | unk_lang_printchar (register int c, struct ui_file *stream) |
c906108c SS |
1430 | { |
1431 | error ("internal error - unimplemented function unk_lang_printchar called."); | |
1432 | } | |
1433 | ||
1434 | static void | |
fba45db2 KB |
1435 | unk_lang_printstr (struct ui_file *stream, char *string, unsigned int length, |
1436 | int width, int force_ellipses) | |
c906108c SS |
1437 | { |
1438 | error ("internal error - unimplemented function unk_lang_printstr called."); | |
1439 | } | |
1440 | ||
1441 | static struct type * | |
fba45db2 | 1442 | unk_lang_create_fundamental_type (struct objfile *objfile, int typeid) |
c906108c SS |
1443 | { |
1444 | error ("internal error - unimplemented function unk_lang_create_fundamental_type called."); | |
1445 | } | |
1446 | ||
1447 | static void | |
fba45db2 KB |
1448 | unk_lang_print_type (struct type *type, char *varstring, struct ui_file *stream, |
1449 | int show, int level) | |
c906108c SS |
1450 | { |
1451 | error ("internal error - unimplemented function unk_lang_print_type called."); | |
1452 | } | |
1453 | ||
1454 | static int | |
fba45db2 KB |
1455 | unk_lang_val_print (struct type *type, char *valaddr, int embedded_offset, |
1456 | CORE_ADDR address, struct ui_file *stream, int format, | |
1457 | int deref_ref, int recurse, enum val_prettyprint pretty) | |
c906108c SS |
1458 | { |
1459 | error ("internal error - unimplemented function unk_lang_val_print called."); | |
1460 | } | |
1461 | ||
1462 | static int | |
fba45db2 KB |
1463 | unk_lang_value_print (value_ptr val, struct ui_file *stream, int format, |
1464 | enum val_prettyprint pretty) | |
c906108c SS |
1465 | { |
1466 | error ("internal error - unimplemented function unk_lang_value_print called."); | |
1467 | } | |
1468 | ||
c5aa993b JM |
1469 | static struct type **CONST_PTR (unknown_builtin_types[]) = |
1470 | { | |
1471 | 0 | |
1472 | }; | |
1473 | static const struct op_print unk_op_print_tab[] = | |
1474 | { | |
1475 | {NULL, OP_NULL, PREC_NULL, 0} | |
c906108c SS |
1476 | }; |
1477 | ||
c5aa993b JM |
1478 | const struct language_defn unknown_language_defn = |
1479 | { | |
c906108c SS |
1480 | "unknown", |
1481 | language_unknown, | |
1482 | &unknown_builtin_types[0], | |
1483 | range_check_off, | |
1484 | type_check_off, | |
63872f9d | 1485 | case_sensitive_on, |
c906108c SS |
1486 | unk_lang_parser, |
1487 | unk_lang_error, | |
1488 | evaluate_subexp_standard, | |
1489 | unk_lang_printchar, /* Print character constant */ | |
1490 | unk_lang_printstr, | |
1491 | unk_lang_emit_char, | |
1492 | unk_lang_create_fundamental_type, | |
1493 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1494 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1495 | unk_lang_value_print, /* Print a top-level value */ | |
c5aa993b JM |
1496 | {"", "", "", ""}, /* Binary format info */ |
1497 | {"0%lo", "0", "o", ""}, /* Octal format info */ | |
1498 | {"%ld", "", "d", ""}, /* Decimal format info */ | |
1499 | {"0x%lx", "0x", "x", ""}, /* Hex format info */ | |
c906108c SS |
1500 | unk_op_print_tab, /* expression operators for printing */ |
1501 | 1, /* c-style arrays */ | |
1502 | 0, /* String lower bound */ | |
c5aa993b | 1503 | &builtin_type_char, /* Type of string elements */ |
c906108c SS |
1504 | LANG_MAGIC |
1505 | }; | |
1506 | ||
1507 | /* These two structs define fake entries for the "local" and "auto" options. */ | |
c5aa993b JM |
1508 | const struct language_defn auto_language_defn = |
1509 | { | |
c906108c SS |
1510 | "auto", |
1511 | language_auto, | |
1512 | &unknown_builtin_types[0], | |
1513 | range_check_off, | |
1514 | type_check_off, | |
63872f9d | 1515 | case_sensitive_on, |
c906108c SS |
1516 | unk_lang_parser, |
1517 | unk_lang_error, | |
1518 | evaluate_subexp_standard, | |
1519 | unk_lang_printchar, /* Print character constant */ | |
1520 | unk_lang_printstr, | |
1521 | unk_lang_emit_char, | |
1522 | unk_lang_create_fundamental_type, | |
1523 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1524 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1525 | unk_lang_value_print, /* Print a top-level value */ | |
c5aa993b JM |
1526 | {"", "", "", ""}, /* Binary format info */ |
1527 | {"0%lo", "0", "o", ""}, /* Octal format info */ | |
1528 | {"%ld", "", "d", ""}, /* Decimal format info */ | |
1529 | {"0x%lx", "0x", "x", ""}, /* Hex format info */ | |
c906108c SS |
1530 | unk_op_print_tab, /* expression operators for printing */ |
1531 | 1, /* c-style arrays */ | |
1532 | 0, /* String lower bound */ | |
c5aa993b | 1533 | &builtin_type_char, /* Type of string elements */ |
c906108c SS |
1534 | LANG_MAGIC |
1535 | }; | |
1536 | ||
c5aa993b JM |
1537 | const struct language_defn local_language_defn = |
1538 | { | |
c906108c SS |
1539 | "local", |
1540 | language_auto, | |
1541 | &unknown_builtin_types[0], | |
1542 | range_check_off, | |
1543 | type_check_off, | |
63872f9d | 1544 | case_sensitive_on, |
c906108c SS |
1545 | unk_lang_parser, |
1546 | unk_lang_error, | |
1547 | evaluate_subexp_standard, | |
1548 | unk_lang_printchar, /* Print character constant */ | |
1549 | unk_lang_printstr, | |
1550 | unk_lang_emit_char, | |
1551 | unk_lang_create_fundamental_type, | |
1552 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1553 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1554 | unk_lang_value_print, /* Print a top-level value */ | |
c5aa993b JM |
1555 | {"", "", "", ""}, /* Binary format info */ |
1556 | {"0%lo", "0", "o", ""}, /* Octal format info */ | |
1557 | {"%ld", "", "d", ""}, /* Decimal format info */ | |
1558 | {"0x%lx", "0x", "x", ""}, /* Hex format info */ | |
c906108c SS |
1559 | unk_op_print_tab, /* expression operators for printing */ |
1560 | 1, /* c-style arrays */ | |
1561 | 0, /* String lower bound */ | |
c5aa993b | 1562 | &builtin_type_char, /* Type of string elements */ |
c906108c SS |
1563 | LANG_MAGIC |
1564 | }; | |
1565 | \f | |
1566 | /* Initialize the language routines */ | |
1567 | ||
1568 | void | |
fba45db2 | 1569 | _initialize_language (void) |
c906108c | 1570 | { |
c5aa993b JM |
1571 | struct cmd_list_element *set, *show; |
1572 | ||
1573 | /* GDB commands for language specific stuff */ | |
1574 | ||
1575 | set = add_set_cmd ("language", class_support, var_string_noescape, | |
1576 | (char *) &language, | |
1577 | "Set the current source language.", | |
1578 | &setlist); | |
1579 | show = add_show_from_set (set, &showlist); | |
1580 | set->function.cfunc = set_language_command; | |
1581 | show->function.cfunc = show_language_command; | |
1582 | ||
1583 | add_prefix_cmd ("check", no_class, set_check, | |
1584 | "Set the status of the type/range checker", | |
1585 | &setchecklist, "set check ", 0, &setlist); | |
1586 | add_alias_cmd ("c", "check", no_class, 1, &setlist); | |
1587 | add_alias_cmd ("ch", "check", no_class, 1, &setlist); | |
1588 | ||
1589 | add_prefix_cmd ("check", no_class, show_check, | |
1590 | "Show the status of the type/range checker", | |
1591 | &showchecklist, "show check ", 0, &showlist); | |
1592 | add_alias_cmd ("c", "check", no_class, 1, &showlist); | |
1593 | add_alias_cmd ("ch", "check", no_class, 1, &showlist); | |
1594 | ||
1595 | set = add_set_cmd ("type", class_support, var_string_noescape, | |
1596 | (char *) &type, | |
1597 | "Set type checking. (on/warn/off/auto)", | |
1598 | &setchecklist); | |
1599 | show = add_show_from_set (set, &showchecklist); | |
1600 | set->function.cfunc = set_type_command; | |
1601 | show->function.cfunc = show_type_command; | |
1602 | ||
1603 | set = add_set_cmd ("range", class_support, var_string_noescape, | |
1604 | (char *) &range, | |
1605 | "Set range checking. (on/warn/off/auto)", | |
1606 | &setchecklist); | |
1607 | show = add_show_from_set (set, &showchecklist); | |
1608 | set->function.cfunc = set_range_command; | |
1609 | show->function.cfunc = show_range_command; | |
1610 | ||
63872f9d JG |
1611 | set = add_set_cmd ("case-sensitive", class_support, var_string_noescape, |
1612 | (char *) &case_sensitive, | |
1613 | "Set case sensitivity in name search. (on/off/auto)\n\ | |
1614 | For Fortran the default is off; for other languages the default is on.", | |
1615 | &setlist); | |
1616 | show = add_show_from_set (set, &showlist); | |
1617 | set->function.cfunc = set_case_command; | |
1618 | show->function.cfunc = show_case_command; | |
1619 | ||
c5aa993b JM |
1620 | add_language (&unknown_language_defn); |
1621 | add_language (&local_language_defn); | |
1622 | add_language (&auto_language_defn); | |
1623 | ||
1624 | language = savestring ("auto", strlen ("auto")); | |
ed9a39eb | 1625 | type = savestring ("auto", strlen ("auto")); |
ed9a39eb | 1626 | range = savestring ("auto", strlen ("auto")); |
63872f9d JG |
1627 | case_sensitive = savestring ("auto",strlen ("auto")); |
1628 | ||
1629 | /* Have the above take effect */ | |
1630 | set_language (language_auto); | |
c906108c | 1631 | } |