Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Multiple source language support for GDB. |
1bac305b | 2 | |
6aba47ca | 3 | Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, |
4c38e0a4 JB |
4 | 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010 |
5 | Free Software Foundation, Inc. | |
1bac305b | 6 | |
c906108c SS |
7 | Contributed by the Department of Computer Science at the State University |
8 | of New York at Buffalo. | |
9 | ||
c5aa993b | 10 | This file is part of GDB. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is free software; you can redistribute it and/or modify |
13 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 14 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 15 | (at your option) any later version. |
c906108c | 16 | |
c5aa993b JM |
17 | This program is distributed in the hope that it will be useful, |
18 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | GNU General Public License for more details. | |
c906108c | 21 | |
c5aa993b | 22 | You should have received a copy of the GNU General Public License |
a9762ec7 | 23 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
24 | |
25 | /* This file contains functions that return things that are specific | |
26 | to languages. Each function should examine current_language if necessary, | |
27 | and return the appropriate result. */ | |
28 | ||
29 | /* FIXME: Most of these would be better organized as macros which | |
30 | return data out of a "language-specific" struct pointer that is set | |
31 | whenever the working language changes. That would be a lot faster. */ | |
32 | ||
33 | #include "defs.h" | |
34 | #include <ctype.h> | |
35 | #include "gdb_string.h" | |
36 | ||
37 | #include "symtab.h" | |
38 | #include "gdbtypes.h" | |
39 | #include "value.h" | |
40 | #include "gdbcmd.h" | |
c906108c SS |
41 | #include "expression.h" |
42 | #include "language.h" | |
43 | #include "target.h" | |
44 | #include "parser-defs.h" | |
8caabe69 | 45 | #include "jv-lang.h" |
9a3d7dfd | 46 | #include "demangle.h" |
8b60591b | 47 | #include "symfile.h" |
c906108c | 48 | |
a14ed312 | 49 | extern void _initialize_language (void); |
392a587b | 50 | |
a14ed312 | 51 | static void unk_lang_error (char *); |
c906108c | 52 | |
a14ed312 | 53 | static int unk_lang_parser (void); |
c906108c | 54 | |
a14ed312 | 55 | static void show_check (char *, int); |
c906108c | 56 | |
a14ed312 | 57 | static void set_check (char *, int); |
c906108c | 58 | |
63872f9d | 59 | static void set_type_range_case (void); |
c906108c | 60 | |
6c7a06a3 TT |
61 | static void unk_lang_emit_char (int c, struct type *type, |
62 | struct ui_file *stream, int quoter); | |
c906108c | 63 | |
6c7a06a3 TT |
64 | static void unk_lang_printchar (int c, struct type *type, |
65 | struct ui_file *stream); | |
c906108c | 66 | |
25b524e8 | 67 | static void unk_lang_print_type (struct type *, const char *, struct ui_file *, |
d9fcf2fb | 68 | int, int); |
c906108c | 69 | |
79a45b7d TT |
70 | static int unk_lang_value_print (struct value *, struct ui_file *, |
71 | const struct value_print_options *); | |
c906108c | 72 | |
52f729a7 | 73 | static CORE_ADDR unk_lang_trampoline (struct frame_info *, CORE_ADDR pc); |
f636b87d | 74 | |
c906108c SS |
75 | /* Forward declaration */ |
76 | extern const struct language_defn unknown_language_defn; | |
c5aa993b | 77 | |
c906108c | 78 | /* The current (default at startup) state of type and range checking. |
c5aa993b JM |
79 | (If the modes are set to "auto", though, these are changed based |
80 | on the default language at startup, and then again based on the | |
81 | language of the first source file. */ | |
c906108c SS |
82 | |
83 | enum range_mode range_mode = range_mode_auto; | |
84 | enum range_check range_check = range_check_off; | |
85 | enum type_mode type_mode = type_mode_auto; | |
86 | enum type_check type_check = type_check_off; | |
63872f9d JG |
87 | enum case_mode case_mode = case_mode_auto; |
88 | enum case_sensitivity case_sensitivity = case_sensitive_on; | |
c906108c SS |
89 | |
90 | /* The current language and language_mode (see language.h) */ | |
91 | ||
92 | const struct language_defn *current_language = &unknown_language_defn; | |
93 | enum language_mode language_mode = language_mode_auto; | |
94 | ||
95 | /* The language that the user expects to be typing in (the language | |
96 | of main(), or the last language we notified them about, or C). */ | |
97 | ||
98 | const struct language_defn *expected_language; | |
99 | ||
100 | /* The list of supported languages. The list itself is malloc'd. */ | |
101 | ||
102 | static const struct language_defn **languages; | |
103 | static unsigned languages_size; | |
104 | static unsigned languages_allocsize; | |
105 | #define DEFAULT_ALLOCSIZE 4 | |
106 | ||
b84aa90a PA |
107 | /* The current values of the "set language/type/range" enum |
108 | commands. */ | |
109 | static const char *language; | |
110 | static const char *type; | |
111 | static const char *range; | |
112 | static const char *case_sensitive; | |
c906108c SS |
113 | |
114 | /* Warning issued when current_language and the language of the current | |
115 | frame do not match. */ | |
116 | char lang_frame_mismatch_warn[] = | |
c5aa993b | 117 | "Warning: the current language does not match this frame."; |
c906108c SS |
118 | \f |
119 | /* This page contains the functions corresponding to GDB commands | |
120 | and their helpers. */ | |
121 | ||
122 | /* Show command. Display a warning if the language set | |
123 | does not match the frame. */ | |
124 | static void | |
4d28ad1e AC |
125 | show_language_command (struct ui_file *file, int from_tty, |
126 | struct cmd_list_element *c, const char *value) | |
c906108c | 127 | { |
c5aa993b | 128 | enum language flang; /* The language of the current frame */ |
c906108c | 129 | |
b84aa90a PA |
130 | if (language_mode == language_mode_auto) |
131 | fprintf_filtered (gdb_stdout, | |
132 | _("The current source language is " | |
133 | "\"auto; currently %s\".\n"), | |
134 | current_language->la_name); | |
135 | else | |
136 | fprintf_filtered (gdb_stdout, _("The current source language is \"%s\".\n"), | |
137 | current_language->la_name); | |
138 | ||
c5aa993b JM |
139 | flang = get_frame_language (); |
140 | if (flang != language_unknown && | |
141 | language_mode == language_mode_manual && | |
142 | current_language->la_language != flang) | |
143 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
c906108c SS |
144 | } |
145 | ||
146 | /* Set command. Change the current working language. */ | |
147 | static void | |
4d28ad1e | 148 | set_language_command (char *ignore, int from_tty, struct cmd_list_element *c) |
c906108c | 149 | { |
5efd5804 | 150 | int i; |
c906108c | 151 | enum language flang; |
c906108c SS |
152 | |
153 | /* Search the list of languages for a match. */ | |
c5aa993b JM |
154 | for (i = 0; i < languages_size; i++) |
155 | { | |
6314a349 | 156 | if (strcmp (languages[i]->la_name, language) == 0) |
c5aa993b JM |
157 | { |
158 | /* Found it! Go into manual mode, and use this language. */ | |
159 | if (languages[i]->la_language == language_auto) | |
160 | { | |
8b60591b JB |
161 | /* Enter auto mode. Set to the current frame's language, if |
162 | known, or fallback to the initial language. */ | |
c5aa993b JM |
163 | language_mode = language_mode_auto; |
164 | flang = get_frame_language (); | |
165 | if (flang != language_unknown) | |
166 | set_language (flang); | |
8b60591b JB |
167 | else |
168 | set_initial_language (); | |
c5aa993b JM |
169 | expected_language = current_language; |
170 | return; | |
171 | } | |
172 | else | |
173 | { | |
174 | /* Enter manual mode. Set the specified language. */ | |
175 | language_mode = language_mode_manual; | |
176 | current_language = languages[i]; | |
63872f9d | 177 | set_type_range_case (); |
c5aa993b JM |
178 | expected_language = current_language; |
179 | return; | |
180 | } | |
181 | } | |
c906108c | 182 | } |
c906108c | 183 | |
b84aa90a PA |
184 | internal_error (__FILE__, __LINE__, |
185 | "Couldn't find language `%s' in known languages list.", | |
186 | language); | |
c906108c SS |
187 | } |
188 | ||
189 | /* Show command. Display a warning if the type setting does | |
190 | not match the current language. */ | |
191 | static void | |
4d28ad1e AC |
192 | show_type_command (struct ui_file *file, int from_tty, |
193 | struct cmd_list_element *c, const char *value) | |
c906108c | 194 | { |
b84aa90a PA |
195 | if (type_mode == type_mode_auto) |
196 | { | |
197 | char *tmp = NULL; | |
198 | ||
199 | switch (type_check) | |
200 | { | |
201 | case type_check_on: | |
202 | tmp = "on"; | |
203 | break; | |
204 | case type_check_off: | |
205 | tmp = "off"; | |
206 | break; | |
207 | case type_check_warn: | |
208 | tmp = "warn"; | |
209 | break; | |
210 | default: | |
211 | internal_error (__FILE__, __LINE__, | |
212 | "Unrecognized type check setting."); | |
213 | } | |
214 | ||
215 | fprintf_filtered (gdb_stdout, | |
216 | _("Type checking is \"auto; currently %s\".\n"), | |
217 | tmp); | |
218 | } | |
219 | else | |
220 | fprintf_filtered (gdb_stdout, _("Type checking is \"%s\".\n"), | |
221 | value); | |
222 | ||
223 | if (type_check != current_language->la_type_check) | |
224 | warning (_("the current type check setting" | |
225 | " does not match the language.\n")); | |
c906108c SS |
226 | } |
227 | ||
228 | /* Set command. Change the setting for type checking. */ | |
229 | static void | |
4d28ad1e | 230 | set_type_command (char *ignore, int from_tty, struct cmd_list_element *c) |
c906108c | 231 | { |
6314a349 | 232 | if (strcmp (type, "on") == 0) |
c5aa993b | 233 | { |
c906108c SS |
234 | type_check = type_check_on; |
235 | type_mode = type_mode_manual; | |
c5aa993b | 236 | } |
6314a349 | 237 | else if (strcmp (type, "warn") == 0) |
c5aa993b | 238 | { |
c906108c SS |
239 | type_check = type_check_warn; |
240 | type_mode = type_mode_manual; | |
c5aa993b | 241 | } |
6314a349 | 242 | else if (strcmp (type, "off") == 0) |
c5aa993b | 243 | { |
c906108c SS |
244 | type_check = type_check_off; |
245 | type_mode = type_mode_manual; | |
c5aa993b | 246 | } |
6314a349 | 247 | else if (strcmp (type, "auto") == 0) |
c5aa993b | 248 | { |
c906108c | 249 | type_mode = type_mode_auto; |
63872f9d | 250 | set_type_range_case (); |
c906108c | 251 | return; |
c5aa993b | 252 | } |
c4093a6a | 253 | else |
b84aa90a PA |
254 | internal_error (__FILE__, __LINE__, |
255 | _("Unrecognized type check setting: \"%s\""), type); | |
256 | ||
257 | if (type_check != current_language->la_type_check) | |
258 | warning (_("the current type check setting" | |
259 | " does not match the language.\n")); | |
c906108c SS |
260 | } |
261 | ||
262 | /* Show command. Display a warning if the range setting does | |
263 | not match the current language. */ | |
264 | static void | |
4d28ad1e AC |
265 | show_range_command (struct ui_file *file, int from_tty, |
266 | struct cmd_list_element *c, const char *value) | |
c906108c | 267 | { |
b84aa90a PA |
268 | if (range_mode == range_mode_auto) |
269 | { | |
270 | char *tmp; | |
271 | ||
272 | switch (range_check) | |
273 | { | |
274 | case range_check_on: | |
275 | tmp = "on"; | |
276 | break; | |
277 | case range_check_off: | |
278 | tmp = "off"; | |
279 | break; | |
280 | case range_check_warn: | |
281 | tmp = "warn"; | |
282 | break; | |
283 | default: | |
284 | internal_error (__FILE__, __LINE__, | |
285 | "Unrecognized range check setting."); | |
286 | } | |
287 | ||
288 | fprintf_filtered (gdb_stdout, | |
289 | _("Range checking is \"auto; currently %s\".\n"), | |
290 | tmp); | |
291 | } | |
292 | else | |
293 | fprintf_filtered (gdb_stdout, _("Range checking is \"%s\".\n"), | |
294 | value); | |
295 | ||
c5aa993b | 296 | if (range_check != current_language->la_range_check) |
b84aa90a PA |
297 | warning (_("the current range check setting " |
298 | "does not match the language.\n")); | |
c906108c SS |
299 | } |
300 | ||
301 | /* Set command. Change the setting for range checking. */ | |
302 | static void | |
4d28ad1e | 303 | set_range_command (char *ignore, int from_tty, struct cmd_list_element *c) |
c906108c | 304 | { |
6314a349 | 305 | if (strcmp (range, "on") == 0) |
c5aa993b | 306 | { |
c906108c SS |
307 | range_check = range_check_on; |
308 | range_mode = range_mode_manual; | |
c5aa993b | 309 | } |
6314a349 | 310 | else if (strcmp (range, "warn") == 0) |
c5aa993b | 311 | { |
c906108c SS |
312 | range_check = range_check_warn; |
313 | range_mode = range_mode_manual; | |
c5aa993b | 314 | } |
6314a349 | 315 | else if (strcmp (range, "off") == 0) |
c5aa993b | 316 | { |
c906108c SS |
317 | range_check = range_check_off; |
318 | range_mode = range_mode_manual; | |
c5aa993b | 319 | } |
6314a349 | 320 | else if (strcmp (range, "auto") == 0) |
c5aa993b | 321 | { |
c906108c | 322 | range_mode = range_mode_auto; |
63872f9d | 323 | set_type_range_case (); |
c906108c | 324 | return; |
c5aa993b | 325 | } |
c4093a6a JM |
326 | else |
327 | { | |
b84aa90a PA |
328 | internal_error (__FILE__, __LINE__, |
329 | _("Unrecognized range check setting: \"%s\""), range); | |
c4093a6a | 330 | } |
b84aa90a PA |
331 | if (range_check != current_language->la_range_check) |
332 | warning (_("the current range check setting " | |
333 | "does not match the language.\n")); | |
c906108c SS |
334 | } |
335 | ||
63872f9d JG |
336 | /* Show command. Display a warning if the case sensitivity setting does |
337 | not match the current language. */ | |
338 | static void | |
4d28ad1e AC |
339 | show_case_command (struct ui_file *file, int from_tty, |
340 | struct cmd_list_element *c, const char *value) | |
63872f9d | 341 | { |
b84aa90a PA |
342 | if (case_mode == case_mode_auto) |
343 | { | |
344 | char *tmp = NULL; | |
345 | ||
346 | switch (case_sensitivity) | |
347 | { | |
348 | case case_sensitive_on: | |
349 | tmp = "on"; | |
350 | break; | |
351 | case case_sensitive_off: | |
352 | tmp = "off"; | |
353 | break; | |
354 | default: | |
355 | internal_error (__FILE__, __LINE__, | |
356 | "Unrecognized case-sensitive setting."); | |
357 | } | |
358 | ||
359 | fprintf_filtered (gdb_stdout, | |
360 | _("Case sensitivity in " | |
361 | "name search is \"auto; currently %s\".\n"), | |
362 | tmp); | |
363 | } | |
364 | else | |
365 | fprintf_filtered (gdb_stdout, _("Case sensitivity in name search is \"%s\".\n"), | |
366 | value); | |
367 | ||
4d28ad1e | 368 | if (case_sensitivity != current_language->la_case_sensitivity) |
b84aa90a PA |
369 | warning (_("the current case sensitivity setting does not match " |
370 | "the language.\n")); | |
63872f9d JG |
371 | } |
372 | ||
591e78ff MK |
373 | /* Set command. Change the setting for case sensitivity. */ |
374 | ||
63872f9d | 375 | static void |
4d28ad1e | 376 | set_case_command (char *ignore, int from_tty, struct cmd_list_element *c) |
63872f9d | 377 | { |
591e78ff MK |
378 | if (strcmp (case_sensitive, "on") == 0) |
379 | { | |
380 | case_sensitivity = case_sensitive_on; | |
381 | case_mode = case_mode_manual; | |
382 | } | |
383 | else if (strcmp (case_sensitive, "off") == 0) | |
384 | { | |
385 | case_sensitivity = case_sensitive_off; | |
386 | case_mode = case_mode_manual; | |
387 | } | |
388 | else if (strcmp (case_sensitive, "auto") == 0) | |
389 | { | |
390 | case_mode = case_mode_auto; | |
391 | set_type_range_case (); | |
591e78ff MK |
392 | return; |
393 | } | |
63872f9d | 394 | else |
591e78ff | 395 | { |
b84aa90a PA |
396 | internal_error (__FILE__, __LINE__, |
397 | "Unrecognized case-sensitive setting: \"%s\"", | |
398 | case_sensitive); | |
591e78ff | 399 | } |
b84aa90a PA |
400 | |
401 | if (case_sensitivity != current_language->la_case_sensitivity) | |
402 | warning (_("the current case sensitivity setting does not match " | |
403 | "the language.\n")); | |
63872f9d JG |
404 | } |
405 | ||
406 | /* Set the status of range and type checking and case sensitivity based on | |
c906108c SS |
407 | the current modes and the current language. |
408 | If SHOW is non-zero, then print out the current language, | |
409 | type and range checking status. */ | |
410 | static void | |
63872f9d | 411 | set_type_range_case (void) |
c906108c | 412 | { |
c906108c SS |
413 | if (range_mode == range_mode_auto) |
414 | range_check = current_language->la_range_check; | |
415 | ||
416 | if (type_mode == type_mode_auto) | |
417 | type_check = current_language->la_type_check; | |
418 | ||
63872f9d JG |
419 | if (case_mode == case_mode_auto) |
420 | case_sensitivity = current_language->la_case_sensitivity; | |
c906108c SS |
421 | } |
422 | ||
423 | /* Set current language to (enum language) LANG. Returns previous language. */ | |
424 | ||
425 | enum language | |
fba45db2 | 426 | set_language (enum language lang) |
c906108c SS |
427 | { |
428 | int i; | |
429 | enum language prev_language; | |
430 | ||
431 | prev_language = current_language->la_language; | |
432 | ||
c5aa993b JM |
433 | for (i = 0; i < languages_size; i++) |
434 | { | |
435 | if (languages[i]->la_language == lang) | |
436 | { | |
437 | current_language = languages[i]; | |
63872f9d | 438 | set_type_range_case (); |
c5aa993b JM |
439 | break; |
440 | } | |
c906108c | 441 | } |
c906108c SS |
442 | |
443 | return prev_language; | |
444 | } | |
445 | \f | |
c906108c SS |
446 | |
447 | /* Print out the current language settings: language, range and | |
448 | type checking. If QUIETLY, print only what has changed. */ | |
449 | ||
450 | void | |
fba45db2 | 451 | language_info (int quietly) |
c906108c SS |
452 | { |
453 | if (quietly && expected_language == current_language) | |
454 | return; | |
455 | ||
456 | expected_language = current_language; | |
a3f17187 | 457 | printf_unfiltered (_("Current language: %s\n"), language); |
4d28ad1e | 458 | show_language_command (NULL, 1, NULL, NULL); |
c906108c SS |
459 | |
460 | if (!quietly) | |
461 | { | |
a3f17187 | 462 | printf_unfiltered (_("Type checking: %s\n"), type); |
4d28ad1e | 463 | show_type_command (NULL, 1, NULL, NULL); |
a3f17187 | 464 | printf_unfiltered (_("Range checking: %s\n"), range); |
4d28ad1e | 465 | show_range_command (NULL, 1, NULL, NULL); |
a3f17187 | 466 | printf_unfiltered (_("Case sensitivity: %s\n"), case_sensitive); |
4d28ad1e | 467 | show_case_command (NULL, 1, NULL, NULL); |
c906108c SS |
468 | } |
469 | } | |
470 | \f | |
471 | /* Return the result of a binary operation. */ | |
472 | ||
c5aa993b | 473 | #if 0 /* Currently unused */ |
c906108c SS |
474 | |
475 | struct type * | |
3d6d86c6 | 476 | binop_result_type (struct value *v1, struct value *v2) |
c906108c | 477 | { |
c5aa993b JM |
478 | int size, uns; |
479 | struct type *t1 = check_typedef (VALUE_TYPE (v1)); | |
480 | struct type *t2 = check_typedef (VALUE_TYPE (v2)); | |
481 | ||
482 | int l1 = TYPE_LENGTH (t1); | |
483 | int l2 = TYPE_LENGTH (t2); | |
484 | ||
485 | switch (current_language->la_language) | |
486 | { | |
487 | case language_c: | |
488 | case language_cplus: | |
6aecb9c2 | 489 | case language_d: |
eb392fbf | 490 | case language_objc: |
c5aa993b JM |
491 | if (TYPE_CODE (t1) == TYPE_CODE_FLT) |
492 | return TYPE_CODE (t2) == TYPE_CODE_FLT && l2 > l1 ? | |
493 | VALUE_TYPE (v2) : VALUE_TYPE (v1); | |
494 | else if (TYPE_CODE (t2) == TYPE_CODE_FLT) | |
495 | return TYPE_CODE (t1) == TYPE_CODE_FLT && l1 > l2 ? | |
496 | VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
497 | else if (TYPE_UNSIGNED (t1) && l1 > l2) | |
498 | return VALUE_TYPE (v1); | |
499 | else if (TYPE_UNSIGNED (t2) && l2 > l1) | |
500 | return VALUE_TYPE (v2); | |
501 | else /* Both are signed. Result is the longer type */ | |
502 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
c906108c | 503 | break; |
c5aa993b | 504 | case language_m2: |
c906108c | 505 | /* If we are doing type-checking, l1 should equal l2, so this is |
c5aa993b JM |
506 | not needed. */ |
507 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
c906108c | 508 | break; |
c5aa993b | 509 | } |
e2e0b3e5 | 510 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c5aa993b | 511 | return (struct type *) 0; /* For lint */ |
c906108c SS |
512 | } |
513 | ||
c5aa993b | 514 | #endif /* 0 */ |
c906108c SS |
515 | #if 0 |
516 | /* This page contains functions that are used in type/range checking. | |
517 | They all return zero if the type/range check fails. | |
518 | ||
519 | It is hoped that these will make extending GDB to parse different | |
520 | languages a little easier. These are primarily used in eval.c when | |
521 | evaluating expressions and making sure that their types are correct. | |
522 | Instead of having a mess of conjucted/disjuncted expressions in an "if", | |
523 | the ideas of type can be wrapped up in the following functions. | |
524 | ||
525 | Note that some of them are not currently dependent upon which language | |
526 | is currently being parsed. For example, floats are the same in | |
527 | C and Modula-2 (ie. the only floating point type has TYPE_CODE of | |
528 | TYPE_CODE_FLT), while booleans are different. */ | |
529 | ||
530 | /* Returns non-zero if its argument is a simple type. This is the same for | |
531 | both Modula-2 and for C. In the C case, TYPE_CODE_CHAR will never occur, | |
532 | and thus will never cause the failure of the test. */ | |
533 | int | |
fba45db2 | 534 | simple_type (struct type *type) |
c906108c SS |
535 | { |
536 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
537 | switch (TYPE_CODE (type)) |
538 | { | |
539 | case TYPE_CODE_INT: | |
540 | case TYPE_CODE_CHAR: | |
541 | case TYPE_CODE_ENUM: | |
542 | case TYPE_CODE_FLT: | |
543 | case TYPE_CODE_RANGE: | |
544 | case TYPE_CODE_BOOL: | |
545 | return 1; | |
c906108c | 546 | |
c5aa993b JM |
547 | default: |
548 | return 0; | |
549 | } | |
c906108c SS |
550 | } |
551 | ||
552 | /* Returns non-zero if its argument is of an ordered type. | |
553 | An ordered type is one in which the elements can be tested for the | |
554 | properties of "greater than", "less than", etc, or for which the | |
555 | operations "increment" or "decrement" make sense. */ | |
556 | int | |
fba45db2 | 557 | ordered_type (struct type *type) |
c906108c SS |
558 | { |
559 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
560 | switch (TYPE_CODE (type)) |
561 | { | |
562 | case TYPE_CODE_INT: | |
563 | case TYPE_CODE_CHAR: | |
564 | case TYPE_CODE_ENUM: | |
565 | case TYPE_CODE_FLT: | |
566 | case TYPE_CODE_RANGE: | |
567 | return 1; | |
c906108c | 568 | |
c5aa993b JM |
569 | default: |
570 | return 0; | |
571 | } | |
c906108c SS |
572 | } |
573 | ||
574 | /* Returns non-zero if the two types are the same */ | |
575 | int | |
fba45db2 | 576 | same_type (struct type *arg1, struct type *arg2) |
c906108c SS |
577 | { |
578 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
579 | if (structured_type (arg1) ? !structured_type (arg2) : structured_type (arg2)) |
580 | /* One is structured and one isn't */ | |
581 | return 0; | |
582 | else if (structured_type (arg1) && structured_type (arg2)) | |
583 | return arg1 == arg2; | |
584 | else if (numeric_type (arg1) && numeric_type (arg2)) | |
585 | return (TYPE_CODE (arg2) == TYPE_CODE (arg1)) && | |
586 | (TYPE_UNSIGNED (arg1) == TYPE_UNSIGNED (arg2)) | |
587 | ? 1 : 0; | |
588 | else | |
589 | return arg1 == arg2; | |
c906108c SS |
590 | } |
591 | ||
592 | /* Returns non-zero if the type is integral */ | |
593 | int | |
fba45db2 | 594 | integral_type (struct type *type) |
c906108c SS |
595 | { |
596 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
597 | switch (current_language->la_language) |
598 | { | |
599 | case language_c: | |
600 | case language_cplus: | |
6aecb9c2 | 601 | case language_d: |
eb392fbf | 602 | case language_objc: |
c5aa993b JM |
603 | return (TYPE_CODE (type) != TYPE_CODE_INT) && |
604 | (TYPE_CODE (type) != TYPE_CODE_ENUM) ? 0 : 1; | |
605 | case language_m2: | |
750ba382 | 606 | case language_pascal: |
c5aa993b | 607 | return TYPE_CODE (type) != TYPE_CODE_INT ? 0 : 1; |
c5aa993b | 608 | default: |
8a3fe4f8 | 609 | error (_("Language not supported.")); |
c5aa993b | 610 | } |
c906108c SS |
611 | } |
612 | ||
613 | /* Returns non-zero if the value is numeric */ | |
614 | int | |
fba45db2 | 615 | numeric_type (struct type *type) |
c906108c SS |
616 | { |
617 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
618 | switch (TYPE_CODE (type)) |
619 | { | |
620 | case TYPE_CODE_INT: | |
621 | case TYPE_CODE_FLT: | |
622 | return 1; | |
c906108c | 623 | |
c5aa993b JM |
624 | default: |
625 | return 0; | |
626 | } | |
c906108c SS |
627 | } |
628 | ||
629 | /* Returns non-zero if the value is a character type */ | |
630 | int | |
fba45db2 | 631 | character_type (struct type *type) |
c906108c SS |
632 | { |
633 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
634 | switch (current_language->la_language) |
635 | { | |
c5aa993b | 636 | case language_m2: |
750ba382 | 637 | case language_pascal: |
c5aa993b JM |
638 | return TYPE_CODE (type) != TYPE_CODE_CHAR ? 0 : 1; |
639 | ||
640 | case language_c: | |
641 | case language_cplus: | |
6aecb9c2 | 642 | case language_d: |
eb392fbf | 643 | case language_objc: |
c5aa993b JM |
644 | return (TYPE_CODE (type) == TYPE_CODE_INT) && |
645 | TYPE_LENGTH (type) == sizeof (char) | |
646 | ? 1 : 0; | |
647 | default: | |
c906108c | 648 | return (0); |
c5aa993b | 649 | } |
c906108c SS |
650 | } |
651 | ||
652 | /* Returns non-zero if the value is a string type */ | |
653 | int | |
fba45db2 | 654 | string_type (struct type *type) |
c906108c SS |
655 | { |
656 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
657 | switch (current_language->la_language) |
658 | { | |
c5aa993b | 659 | case language_m2: |
750ba382 | 660 | case language_pascal: |
c5aa993b JM |
661 | return TYPE_CODE (type) != TYPE_CODE_STRING ? 0 : 1; |
662 | ||
663 | case language_c: | |
664 | case language_cplus: | |
6aecb9c2 | 665 | case language_d: |
eb392fbf | 666 | case language_objc: |
c906108c SS |
667 | /* C does not have distinct string type. */ |
668 | return (0); | |
c5aa993b | 669 | default: |
c906108c | 670 | return (0); |
c5aa993b | 671 | } |
c906108c SS |
672 | } |
673 | ||
674 | /* Returns non-zero if the value is a boolean type */ | |
675 | int | |
fba45db2 | 676 | boolean_type (struct type *type) |
c906108c SS |
677 | { |
678 | CHECK_TYPEDEF (type); | |
679 | if (TYPE_CODE (type) == TYPE_CODE_BOOL) | |
680 | return 1; | |
c5aa993b | 681 | switch (current_language->la_language) |
c906108c SS |
682 | { |
683 | case language_c: | |
684 | case language_cplus: | |
6aecb9c2 | 685 | case language_d: |
eb392fbf | 686 | case language_objc: |
db034ac5 | 687 | /* Might be more cleanly handled by having a |
1b831c93 | 688 | TYPE_CODE_INT_NOT_BOOL for (the deleted) CHILL and such |
db034ac5 | 689 | languages, or a TYPE_CODE_INT_OR_BOOL for C. */ |
c906108c SS |
690 | if (TYPE_CODE (type) == TYPE_CODE_INT) |
691 | return 1; | |
c5aa993b | 692 | default: |
c906108c | 693 | break; |
c5aa993b | 694 | } |
c906108c SS |
695 | return 0; |
696 | } | |
697 | ||
698 | /* Returns non-zero if the value is a floating-point type */ | |
699 | int | |
fba45db2 | 700 | float_type (struct type *type) |
c906108c SS |
701 | { |
702 | CHECK_TYPEDEF (type); | |
c5aa993b | 703 | return TYPE_CODE (type) == TYPE_CODE_FLT; |
c906108c | 704 | } |
b97aedf3 | 705 | #endif |
c906108c SS |
706 | |
707 | /* Returns non-zero if the value is a pointer type */ | |
708 | int | |
fba45db2 | 709 | pointer_type (struct type *type) |
c906108c | 710 | { |
c5aa993b JM |
711 | return TYPE_CODE (type) == TYPE_CODE_PTR || |
712 | TYPE_CODE (type) == TYPE_CODE_REF; | |
c906108c SS |
713 | } |
714 | ||
b97aedf3 | 715 | #if 0 |
c906108c SS |
716 | /* Returns non-zero if the value is a structured type */ |
717 | int | |
fba45db2 | 718 | structured_type (struct type *type) |
c906108c SS |
719 | { |
720 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
721 | switch (current_language->la_language) |
722 | { | |
723 | case language_c: | |
724 | case language_cplus: | |
6aecb9c2 | 725 | case language_d: |
eb392fbf | 726 | case language_objc: |
c5aa993b JM |
727 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || |
728 | (TYPE_CODE (type) == TYPE_CODE_UNION) || | |
729 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
750ba382 PM |
730 | case language_pascal: |
731 | return (TYPE_CODE(type) == TYPE_CODE_STRUCT) || | |
732 | (TYPE_CODE(type) == TYPE_CODE_UNION) || | |
733 | (TYPE_CODE(type) == TYPE_CODE_SET) || | |
734 | (TYPE_CODE(type) == TYPE_CODE_ARRAY); | |
c5aa993b JM |
735 | case language_m2: |
736 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || | |
737 | (TYPE_CODE (type) == TYPE_CODE_SET) || | |
738 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
c5aa993b | 739 | default: |
c906108c | 740 | return (0); |
c5aa993b | 741 | } |
c906108c SS |
742 | } |
743 | #endif | |
744 | \f | |
c906108c SS |
745 | /* This page contains functions that return info about |
746 | (struct value) values used in GDB. */ | |
747 | ||
748 | /* Returns non-zero if the value VAL represents a true value. */ | |
749 | int | |
3d6d86c6 | 750 | value_true (struct value *val) |
c906108c SS |
751 | { |
752 | /* It is possible that we should have some sort of error if a non-boolean | |
753 | value is used in this context. Possibly dependent on some kind of | |
754 | "boolean-checking" option like range checking. But it should probably | |
755 | not depend on the language except insofar as is necessary to identify | |
756 | a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean | |
757 | should be an error, probably). */ | |
758 | return !value_logical_not (val); | |
759 | } | |
760 | \f | |
c906108c SS |
761 | /* This page contains functions for the printing out of |
762 | error messages that occur during type- and range- | |
763 | checking. */ | |
764 | ||
ddfe3c15 AC |
765 | /* These are called when a language fails a type- or range-check. The |
766 | first argument should be a printf()-style format string, and the | |
767 | rest of the arguments should be its arguments. If | |
768 | [type|range]_check is [type|range]_check_on, an error is printed; | |
769 | if [type|range]_check_warn, a warning; otherwise just the | |
770 | message. */ | |
c906108c SS |
771 | |
772 | void | |
ddfe3c15 | 773 | type_error (const char *string,...) |
c906108c | 774 | { |
c5aa993b | 775 | va_list args; |
c906108c | 776 | |
e0881a8e | 777 | va_start (args, string); |
ddfe3c15 AC |
778 | switch (type_check) |
779 | { | |
780 | case type_check_warn: | |
781 | vwarning (string, args); | |
782 | break; | |
783 | case type_check_on: | |
784 | verror (string, args); | |
785 | break; | |
786 | case type_check_off: | |
787 | /* FIXME: cagney/2002-01-30: Should this function print anything | |
788 | when type error is off? */ | |
789 | vfprintf_filtered (gdb_stderr, string, args); | |
790 | fprintf_filtered (gdb_stderr, "\n"); | |
791 | break; | |
792 | default: | |
e2e0b3e5 | 793 | internal_error (__FILE__, __LINE__, _("bad switch")); |
ddfe3c15 | 794 | } |
c5aa993b | 795 | va_end (args); |
c906108c SS |
796 | } |
797 | ||
798 | void | |
ddfe3c15 | 799 | range_error (const char *string,...) |
c906108c | 800 | { |
c5aa993b | 801 | va_list args; |
c906108c | 802 | |
e0881a8e | 803 | va_start (args, string); |
ddfe3c15 AC |
804 | switch (range_check) |
805 | { | |
806 | case range_check_warn: | |
807 | vwarning (string, args); | |
808 | break; | |
809 | case range_check_on: | |
810 | verror (string, args); | |
811 | break; | |
812 | case range_check_off: | |
813 | /* FIXME: cagney/2002-01-30: Should this function print anything | |
814 | when range error is off? */ | |
815 | vfprintf_filtered (gdb_stderr, string, args); | |
816 | fprintf_filtered (gdb_stderr, "\n"); | |
817 | break; | |
818 | default: | |
e2e0b3e5 | 819 | internal_error (__FILE__, __LINE__, _("bad switch")); |
ddfe3c15 | 820 | } |
c5aa993b | 821 | va_end (args); |
c906108c | 822 | } |
c906108c | 823 | \f |
c5aa993b | 824 | |
c906108c SS |
825 | /* This page contains miscellaneous functions */ |
826 | ||
827 | /* Return the language enum for a given language string. */ | |
828 | ||
829 | enum language | |
fba45db2 | 830 | language_enum (char *str) |
c906108c SS |
831 | { |
832 | int i; | |
833 | ||
c5aa993b | 834 | for (i = 0; i < languages_size; i++) |
591e78ff | 835 | if (strcmp (languages[i]->la_name, str) == 0) |
c906108c SS |
836 | return languages[i]->la_language; |
837 | ||
838 | return language_unknown; | |
839 | } | |
840 | ||
841 | /* Return the language struct for a given language enum. */ | |
842 | ||
843 | const struct language_defn * | |
fba45db2 | 844 | language_def (enum language lang) |
c906108c SS |
845 | { |
846 | int i; | |
847 | ||
c5aa993b JM |
848 | for (i = 0; i < languages_size; i++) |
849 | { | |
850 | if (languages[i]->la_language == lang) | |
851 | { | |
852 | return languages[i]; | |
853 | } | |
c906108c | 854 | } |
c906108c SS |
855 | return NULL; |
856 | } | |
857 | ||
858 | /* Return the language as a string */ | |
859 | char * | |
fba45db2 | 860 | language_str (enum language lang) |
c906108c SS |
861 | { |
862 | int i; | |
863 | ||
c5aa993b JM |
864 | for (i = 0; i < languages_size; i++) |
865 | { | |
866 | if (languages[i]->la_language == lang) | |
867 | { | |
868 | return languages[i]->la_name; | |
869 | } | |
c906108c | 870 | } |
c906108c SS |
871 | return "Unknown"; |
872 | } | |
873 | ||
874 | static void | |
fba45db2 | 875 | set_check (char *ignore, int from_tty) |
c906108c | 876 | { |
c5aa993b JM |
877 | printf_unfiltered ( |
878 | "\"set check\" must be followed by the name of a check subcommand.\n"); | |
879 | help_list (setchecklist, "set check ", -1, gdb_stdout); | |
c906108c SS |
880 | } |
881 | ||
882 | static void | |
fba45db2 | 883 | show_check (char *ignore, int from_tty) |
c906108c | 884 | { |
c5aa993b | 885 | cmd_show_list (showchecklist, from_tty, ""); |
c906108c SS |
886 | } |
887 | \f | |
888 | /* Add a language to the set of known languages. */ | |
889 | ||
890 | void | |
fba45db2 | 891 | add_language (const struct language_defn *lang) |
c906108c | 892 | { |
b84aa90a PA |
893 | /* For the "set language" command. */ |
894 | static char **language_names = NULL; | |
895 | /* For the "help set language" command. */ | |
1eefb858 | 896 | char *language_set_doc = NULL; |
b84aa90a PA |
897 | |
898 | int i; | |
899 | struct ui_file *tmp_stream; | |
b84aa90a | 900 | |
c906108c SS |
901 | if (lang->la_magic != LANG_MAGIC) |
902 | { | |
c5aa993b JM |
903 | fprintf_unfiltered (gdb_stderr, "Magic number of %s language struct wrong\n", |
904 | lang->la_name); | |
e2e0b3e5 | 905 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
906 | } |
907 | ||
908 | if (!languages) | |
909 | { | |
910 | languages_allocsize = DEFAULT_ALLOCSIZE; | |
911 | languages = (const struct language_defn **) xmalloc | |
912 | (languages_allocsize * sizeof (*languages)); | |
913 | } | |
914 | if (languages_size >= languages_allocsize) | |
915 | { | |
916 | languages_allocsize *= 2; | |
917 | languages = (const struct language_defn **) xrealloc ((char *) languages, | |
c5aa993b | 918 | languages_allocsize * sizeof (*languages)); |
c906108c SS |
919 | } |
920 | languages[languages_size++] = lang; | |
b84aa90a PA |
921 | |
922 | /* Build the language names array, to be used as enumeration in the | |
923 | set language" enum command. */ | |
924 | language_names = xrealloc (language_names, | |
925 | (languages_size + 1) * sizeof (const char *)); | |
926 | for (i = 0; i < languages_size; ++i) | |
927 | language_names[i] = languages[i]->la_name; | |
928 | language_names[i] = NULL; | |
929 | ||
930 | /* Build the "help set language" docs. */ | |
931 | tmp_stream = mem_fileopen (); | |
932 | ||
933 | fprintf_unfiltered (tmp_stream, _("\ | |
934 | Set the current source language.\n\ | |
935 | The currently understood settings are:\n\n\ | |
936 | local or auto Automatic setting based on source file\n")); | |
937 | ||
938 | for (i = 0; i < languages_size; ++i) | |
939 | { | |
940 | /* Already dealt with these above. */ | |
941 | if (languages[i]->la_language == language_unknown | |
942 | || languages[i]->la_language == language_auto) | |
943 | continue; | |
944 | ||
945 | /* FIXME: i18n: for now assume that the human-readable name | |
946 | is just a capitalization of the internal name. */ | |
947 | fprintf_unfiltered (tmp_stream, "%-16s Use the %c%s language\n", | |
948 | languages[i]->la_name, | |
949 | /* Capitalize first letter of language | |
950 | name. */ | |
951 | toupper (languages[i]->la_name[0]), | |
952 | languages[i]->la_name + 1); | |
953 | } | |
954 | ||
759ef836 | 955 | language_set_doc = ui_file_xstrdup (tmp_stream, NULL); |
b84aa90a PA |
956 | ui_file_delete (tmp_stream); |
957 | ||
958 | add_setshow_enum_cmd ("language", class_support, | |
959 | (const char **) language_names, | |
960 | &language, | |
961 | language_set_doc, _("\ | |
962 | Show the current source language."), NULL, | |
963 | set_language_command, | |
964 | show_language_command, | |
965 | &setlist, &showlist); | |
1eefb858 TT |
966 | |
967 | xfree (language_set_doc); | |
c906108c SS |
968 | } |
969 | ||
f636b87d AF |
970 | /* Iterate through all registered languages looking for and calling |
971 | any non-NULL struct language_defn.skip_trampoline() functions. | |
972 | Return the result from the first that returns non-zero, or 0 if all | |
973 | `fail'. */ | |
974 | CORE_ADDR | |
52f729a7 | 975 | skip_language_trampoline (struct frame_info *frame, CORE_ADDR pc) |
f636b87d AF |
976 | { |
977 | int i; | |
978 | ||
979 | for (i = 0; i < languages_size; i++) | |
980 | { | |
981 | if (languages[i]->skip_trampoline) | |
982 | { | |
52f729a7 | 983 | CORE_ADDR real_pc = (languages[i]->skip_trampoline) (frame, pc); |
e0881a8e | 984 | |
f636b87d AF |
985 | if (real_pc) |
986 | return real_pc; | |
987 | } | |
988 | } | |
989 | ||
990 | return 0; | |
991 | } | |
992 | ||
9a3d7dfd AF |
993 | /* Return demangled language symbol, or NULL. |
994 | FIXME: Options are only useful for certain languages and ignored | |
995 | by others, so it would be better to remove them here and have a | |
996 | more flexible demangler for the languages that need it. | |
997 | FIXME: Sometimes the demangler is invoked when we don't know the | |
998 | language, so we can't use this everywhere. */ | |
999 | char * | |
1000 | language_demangle (const struct language_defn *current_language, | |
1001 | const char *mangled, int options) | |
1002 | { | |
1003 | if (current_language != NULL && current_language->la_demangle) | |
1004 | return current_language->la_demangle (mangled, options); | |
1005 | return NULL; | |
1006 | } | |
1007 | ||
31c27f77 JJ |
1008 | /* Return class name from physname or NULL. */ |
1009 | char * | |
1010 | language_class_name_from_physname (const struct language_defn *current_language, | |
1011 | const char *physname) | |
1012 | { | |
1013 | if (current_language != NULL && current_language->la_class_name_from_physname) | |
1014 | return current_language->la_class_name_from_physname (physname); | |
1015 | return NULL; | |
1016 | } | |
1017 | ||
41f1b697 DJ |
1018 | /* Return non-zero if TYPE should be passed (and returned) by |
1019 | reference at the language level. */ | |
1020 | int | |
1021 | language_pass_by_reference (struct type *type) | |
1022 | { | |
1023 | return current_language->la_pass_by_reference (type); | |
1024 | } | |
1025 | ||
1026 | /* Return zero; by default, types are passed by value at the language | |
1027 | level. The target ABI may pass or return some structs by reference | |
1028 | independent of this. */ | |
1029 | int | |
1030 | default_pass_by_reference (struct type *type) | |
1031 | { | |
1032 | return 0; | |
1033 | } | |
1034 | ||
9f0a5303 JB |
1035 | /* Return the default string containing the list of characters |
1036 | delimiting words. This is a reasonable default value that | |
1037 | most languages should be able to use. */ | |
1038 | ||
1039 | char * | |
1040 | default_word_break_characters (void) | |
1041 | { | |
1042 | return " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-"; | |
1043 | } | |
f636b87d | 1044 | |
e79af960 JB |
1045 | /* Print the index of array elements using the C99 syntax. */ |
1046 | ||
1047 | void | |
1048 | default_print_array_index (struct value *index_value, struct ui_file *stream, | |
79a45b7d | 1049 | const struct value_print_options *options) |
e79af960 JB |
1050 | { |
1051 | fprintf_filtered (stream, "["); | |
79a45b7d | 1052 | LA_VALUE_PRINT (index_value, stream, options); |
e79af960 JB |
1053 | fprintf_filtered (stream, "] = "); |
1054 | } | |
1055 | ||
ae6a3a4c TJB |
1056 | void |
1057 | default_get_string (struct value *value, gdb_byte **buffer, int *length, | |
96c07c5b | 1058 | struct type **char_type, const char **charset) |
ae6a3a4c TJB |
1059 | { |
1060 | error (_("Getting a string is unsupported in this language.")); | |
1061 | } | |
1062 | ||
c906108c SS |
1063 | /* Define the language that is no language. */ |
1064 | ||
1065 | static int | |
fba45db2 | 1066 | unk_lang_parser (void) |
c906108c SS |
1067 | { |
1068 | return 1; | |
1069 | } | |
1070 | ||
1071 | static void | |
fba45db2 | 1072 | unk_lang_error (char *msg) |
c906108c | 1073 | { |
8a3fe4f8 | 1074 | error (_("Attempted to parse an expression with unknown language")); |
c906108c SS |
1075 | } |
1076 | ||
1077 | static void | |
6c7a06a3 TT |
1078 | unk_lang_emit_char (int c, struct type *type, struct ui_file *stream, |
1079 | int quoter) | |
c906108c | 1080 | { |
8a3fe4f8 | 1081 | error (_("internal error - unimplemented function unk_lang_emit_char called.")); |
c906108c SS |
1082 | } |
1083 | ||
1084 | static void | |
6c7a06a3 | 1085 | unk_lang_printchar (int c, struct type *type, struct ui_file *stream) |
c906108c | 1086 | { |
8a3fe4f8 | 1087 | error (_("internal error - unimplemented function unk_lang_printchar called.")); |
c906108c SS |
1088 | } |
1089 | ||
1090 | static void | |
6c7a06a3 TT |
1091 | unk_lang_printstr (struct ui_file *stream, struct type *type, |
1092 | const gdb_byte *string, unsigned int length, | |
be759fcf | 1093 | const char *encoding, int force_ellipses, |
79a45b7d | 1094 | const struct value_print_options *options) |
c906108c | 1095 | { |
8a3fe4f8 | 1096 | error (_("internal error - unimplemented function unk_lang_printstr called.")); |
c906108c SS |
1097 | } |
1098 | ||
c906108c | 1099 | static void |
25b524e8 JK |
1100 | unk_lang_print_type (struct type *type, const char *varstring, |
1101 | struct ui_file *stream, int show, int level) | |
c906108c | 1102 | { |
8a3fe4f8 | 1103 | error (_("internal error - unimplemented function unk_lang_print_type called.")); |
c906108c SS |
1104 | } |
1105 | ||
1106 | static int | |
fc1a4b47 | 1107 | unk_lang_val_print (struct type *type, const gdb_byte *valaddr, |
a2bd3dcd | 1108 | int embedded_offset, CORE_ADDR address, |
79a45b7d | 1109 | struct ui_file *stream, int recurse, |
0e03807e | 1110 | const struct value *val, |
79a45b7d | 1111 | const struct value_print_options *options) |
c906108c | 1112 | { |
8a3fe4f8 | 1113 | error (_("internal error - unimplemented function unk_lang_val_print called.")); |
c906108c SS |
1114 | } |
1115 | ||
1116 | static int | |
79a45b7d TT |
1117 | unk_lang_value_print (struct value *val, struct ui_file *stream, |
1118 | const struct value_print_options *options) | |
c906108c | 1119 | { |
8a3fe4f8 | 1120 | error (_("internal error - unimplemented function unk_lang_value_print called.")); |
c906108c SS |
1121 | } |
1122 | ||
52f729a7 | 1123 | static CORE_ADDR unk_lang_trampoline (struct frame_info *frame, CORE_ADDR pc) |
f636b87d AF |
1124 | { |
1125 | return 0; | |
1126 | } | |
1127 | ||
9a3d7dfd AF |
1128 | /* Unknown languages just use the cplus demangler. */ |
1129 | static char *unk_lang_demangle (const char *mangled, int options) | |
1130 | { | |
1131 | return cplus_demangle (mangled, options); | |
1132 | } | |
1133 | ||
31c27f77 JJ |
1134 | static char *unk_lang_class_name (const char *mangled) |
1135 | { | |
1136 | return NULL; | |
1137 | } | |
9a3d7dfd | 1138 | |
c5aa993b JM |
1139 | static const struct op_print unk_op_print_tab[] = |
1140 | { | |
1141 | {NULL, OP_NULL, PREC_NULL, 0} | |
c906108c SS |
1142 | }; |
1143 | ||
f290d38e AC |
1144 | static void |
1145 | unknown_language_arch_info (struct gdbarch *gdbarch, | |
1146 | struct language_arch_info *lai) | |
1147 | { | |
1148 | lai->string_char_type = builtin_type (gdbarch)->builtin_char; | |
fbb06eb1 | 1149 | lai->bool_type_default = builtin_type (gdbarch)->builtin_int; |
5a44ea29 | 1150 | lai->primitive_type_vector = GDBARCH_OBSTACK_CALLOC (gdbarch, 1, |
f290d38e AC |
1151 | struct type *); |
1152 | } | |
1153 | ||
c5aa993b JM |
1154 | const struct language_defn unknown_language_defn = |
1155 | { | |
c906108c SS |
1156 | "unknown", |
1157 | language_unknown, | |
c906108c SS |
1158 | range_check_off, |
1159 | type_check_off, | |
63872f9d | 1160 | case_sensitive_on, |
9a044a89 TT |
1161 | array_row_major, |
1162 | macro_expansion_no, | |
5f9769d1 | 1163 | &exp_descriptor_standard, |
c906108c SS |
1164 | unk_lang_parser, |
1165 | unk_lang_error, | |
e85c3284 | 1166 | null_post_parser, |
c906108c SS |
1167 | unk_lang_printchar, /* Print character constant */ |
1168 | unk_lang_printstr, | |
1169 | unk_lang_emit_char, | |
c906108c | 1170 | unk_lang_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 1171 | default_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
1172 | unk_lang_val_print, /* Print a value using appropriate syntax */ |
1173 | unk_lang_value_print, /* Print a top-level value */ | |
f636b87d | 1174 | unk_lang_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 1175 | "this", /* name_of_this */ |
5f9a71c3 | 1176 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 1177 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 1178 | unk_lang_demangle, /* Language specific symbol demangler */ |
31c27f77 | 1179 | unk_lang_class_name, /* Language specific class_name_from_physname */ |
c906108c SS |
1180 | unk_op_print_tab, /* expression operators for printing */ |
1181 | 1, /* c-style arrays */ | |
1182 | 0, /* String lower bound */ | |
6084f43a | 1183 | default_word_break_characters, |
41d27058 | 1184 | default_make_symbol_completion_list, |
f290d38e | 1185 | unknown_language_arch_info, /* la_language_arch_info. */ |
e79af960 | 1186 | default_print_array_index, |
41f1b697 | 1187 | default_pass_by_reference, |
ae6a3a4c | 1188 | default_get_string, |
c906108c SS |
1189 | LANG_MAGIC |
1190 | }; | |
1191 | ||
1192 | /* These two structs define fake entries for the "local" and "auto" options. */ | |
c5aa993b JM |
1193 | const struct language_defn auto_language_defn = |
1194 | { | |
c906108c SS |
1195 | "auto", |
1196 | language_auto, | |
c906108c SS |
1197 | range_check_off, |
1198 | type_check_off, | |
63872f9d | 1199 | case_sensitive_on, |
9a044a89 TT |
1200 | array_row_major, |
1201 | macro_expansion_no, | |
5f9769d1 | 1202 | &exp_descriptor_standard, |
c906108c SS |
1203 | unk_lang_parser, |
1204 | unk_lang_error, | |
e85c3284 | 1205 | null_post_parser, |
c906108c SS |
1206 | unk_lang_printchar, /* Print character constant */ |
1207 | unk_lang_printstr, | |
1208 | unk_lang_emit_char, | |
c906108c | 1209 | unk_lang_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 1210 | default_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
1211 | unk_lang_val_print, /* Print a value using appropriate syntax */ |
1212 | unk_lang_value_print, /* Print a top-level value */ | |
f636b87d | 1213 | unk_lang_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 1214 | "this", /* name_of_this */ |
5f9a71c3 | 1215 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 1216 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 1217 | unk_lang_demangle, /* Language specific symbol demangler */ |
31c27f77 | 1218 | unk_lang_class_name, /* Language specific class_name_from_physname */ |
c906108c SS |
1219 | unk_op_print_tab, /* expression operators for printing */ |
1220 | 1, /* c-style arrays */ | |
1221 | 0, /* String lower bound */ | |
6084f43a | 1222 | default_word_break_characters, |
41d27058 | 1223 | default_make_symbol_completion_list, |
f290d38e | 1224 | unknown_language_arch_info, /* la_language_arch_info. */ |
e79af960 | 1225 | default_print_array_index, |
41f1b697 | 1226 | default_pass_by_reference, |
ae6a3a4c | 1227 | default_get_string, |
c906108c SS |
1228 | LANG_MAGIC |
1229 | }; | |
1230 | ||
c5aa993b JM |
1231 | const struct language_defn local_language_defn = |
1232 | { | |
c906108c SS |
1233 | "local", |
1234 | language_auto, | |
c906108c SS |
1235 | range_check_off, |
1236 | type_check_off, | |
63872f9d | 1237 | case_sensitive_on, |
7ca2d3a3 | 1238 | array_row_major, |
9a044a89 | 1239 | macro_expansion_no, |
5f9769d1 | 1240 | &exp_descriptor_standard, |
c906108c SS |
1241 | unk_lang_parser, |
1242 | unk_lang_error, | |
e85c3284 | 1243 | null_post_parser, |
c906108c SS |
1244 | unk_lang_printchar, /* Print character constant */ |
1245 | unk_lang_printstr, | |
1246 | unk_lang_emit_char, | |
c906108c | 1247 | unk_lang_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 1248 | default_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
1249 | unk_lang_val_print, /* Print a value using appropriate syntax */ |
1250 | unk_lang_value_print, /* Print a top-level value */ | |
f636b87d | 1251 | unk_lang_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 1252 | "this", /* name_of_this */ |
5f9a71c3 | 1253 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 1254 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 1255 | unk_lang_demangle, /* Language specific symbol demangler */ |
31c27f77 | 1256 | unk_lang_class_name, /* Language specific class_name_from_physname */ |
c906108c SS |
1257 | unk_op_print_tab, /* expression operators for printing */ |
1258 | 1, /* c-style arrays */ | |
1259 | 0, /* String lower bound */ | |
6084f43a | 1260 | default_word_break_characters, |
41d27058 | 1261 | default_make_symbol_completion_list, |
f290d38e | 1262 | unknown_language_arch_info, /* la_language_arch_info. */ |
e79af960 | 1263 | default_print_array_index, |
41f1b697 | 1264 | default_pass_by_reference, |
ae6a3a4c | 1265 | default_get_string, |
c906108c SS |
1266 | LANG_MAGIC |
1267 | }; | |
1268 | \f | |
f290d38e AC |
1269 | /* Per-architecture language information. */ |
1270 | ||
1271 | static struct gdbarch_data *language_gdbarch_data; | |
1272 | ||
1273 | struct language_gdbarch | |
1274 | { | |
1275 | /* A vector of per-language per-architecture info. Indexed by "enum | |
1276 | language". */ | |
1277 | struct language_arch_info arch_info[nr_languages]; | |
1278 | }; | |
1279 | ||
1280 | static void * | |
1281 | language_gdbarch_post_init (struct gdbarch *gdbarch) | |
1282 | { | |
1283 | struct language_gdbarch *l; | |
1284 | int i; | |
1285 | ||
1286 | l = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct language_gdbarch); | |
1285b746 | 1287 | for (i = 0; i < languages_size; i++) |
f290d38e AC |
1288 | { |
1289 | if (languages[i] != NULL | |
1290 | && languages[i]->la_language_arch_info != NULL) | |
1291 | languages[i]->la_language_arch_info | |
1292 | (gdbarch, l->arch_info + languages[i]->la_language); | |
1293 | } | |
1294 | return l; | |
1295 | } | |
1296 | ||
1297 | struct type * | |
1298 | language_string_char_type (const struct language_defn *la, | |
1299 | struct gdbarch *gdbarch) | |
1300 | { | |
1301 | struct language_gdbarch *ld = gdbarch_data (gdbarch, | |
1302 | language_gdbarch_data); | |
e0881a8e | 1303 | |
aba2dd37 | 1304 | return ld->arch_info[la->la_language].string_char_type; |
f290d38e AC |
1305 | } |
1306 | ||
fbb06eb1 UW |
1307 | struct type * |
1308 | language_bool_type (const struct language_defn *la, | |
1309 | struct gdbarch *gdbarch) | |
1310 | { | |
1311 | struct language_gdbarch *ld = gdbarch_data (gdbarch, | |
1312 | language_gdbarch_data); | |
1313 | ||
1314 | if (ld->arch_info[la->la_language].bool_type_symbol) | |
1315 | { | |
1316 | struct symbol *sym; | |
e0881a8e | 1317 | |
fbb06eb1 UW |
1318 | sym = lookup_symbol (ld->arch_info[la->la_language].bool_type_symbol, |
1319 | NULL, VAR_DOMAIN, NULL); | |
1320 | if (sym) | |
1321 | { | |
1322 | struct type *type = SYMBOL_TYPE (sym); | |
e0881a8e | 1323 | |
fbb06eb1 UW |
1324 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) |
1325 | return type; | |
1326 | } | |
1327 | } | |
1328 | ||
1329 | return ld->arch_info[la->la_language].bool_type_default; | |
1330 | } | |
1331 | ||
f290d38e | 1332 | struct type * |
5a44ea29 | 1333 | language_lookup_primitive_type_by_name (const struct language_defn *la, |
f290d38e AC |
1334 | struct gdbarch *gdbarch, |
1335 | const char *name) | |
1336 | { | |
1337 | struct language_gdbarch *ld = gdbarch_data (gdbarch, | |
1338 | language_gdbarch_data); | |
aba2dd37 | 1339 | struct type *const *p; |
e0881a8e | 1340 | |
aba2dd37 UW |
1341 | for (p = ld->arch_info[la->la_language].primitive_type_vector; |
1342 | (*p) != NULL; | |
1343 | p++) | |
f290d38e | 1344 | { |
aba2dd37 UW |
1345 | if (strcmp (TYPE_NAME (*p), name) == 0) |
1346 | return (*p); | |
f290d38e AC |
1347 | } |
1348 | return (NULL); | |
1349 | } | |
1350 | ||
c906108c SS |
1351 | /* Initialize the language routines */ |
1352 | ||
1353 | void | |
fba45db2 | 1354 | _initialize_language (void) |
c906108c | 1355 | { |
b84aa90a PA |
1356 | static const char *type_or_range_names[] |
1357 | = { "on", "off", "warn", "auto", NULL }; | |
1358 | ||
1359 | static const char *case_sensitive_names[] | |
1360 | = { "on", "off", "auto", NULL }; | |
c5aa993b | 1361 | |
f290d38e AC |
1362 | language_gdbarch_data |
1363 | = gdbarch_data_register_post_init (language_gdbarch_post_init); | |
1364 | ||
c5aa993b JM |
1365 | /* GDB commands for language specific stuff */ |
1366 | ||
c5aa993b | 1367 | add_prefix_cmd ("check", no_class, set_check, |
1bedd215 | 1368 | _("Set the status of the type/range checker."), |
c5aa993b JM |
1369 | &setchecklist, "set check ", 0, &setlist); |
1370 | add_alias_cmd ("c", "check", no_class, 1, &setlist); | |
1371 | add_alias_cmd ("ch", "check", no_class, 1, &setlist); | |
1372 | ||
1373 | add_prefix_cmd ("check", no_class, show_check, | |
1bedd215 | 1374 | _("Show the status of the type/range checker."), |
c5aa993b JM |
1375 | &showchecklist, "show check ", 0, &showlist); |
1376 | add_alias_cmd ("c", "check", no_class, 1, &showlist); | |
1377 | add_alias_cmd ("ch", "check", no_class, 1, &showlist); | |
1378 | ||
b84aa90a | 1379 | add_setshow_enum_cmd ("type", class_support, type_or_range_names, &type, _("\ |
4d28ad1e AC |
1380 | Set type checking. (on/warn/off/auto)"), _("\ |
1381 | Show type checking. (on/warn/off/auto)"), NULL, | |
b84aa90a PA |
1382 | set_type_command, |
1383 | show_type_command, | |
1384 | &setchecklist, &showchecklist); | |
5efd5804 | 1385 | |
b84aa90a PA |
1386 | add_setshow_enum_cmd ("range", class_support, type_or_range_names, |
1387 | &range, _("\ | |
4d28ad1e AC |
1388 | Set range checking. (on/warn/off/auto)"), _("\ |
1389 | Show range checking. (on/warn/off/auto)"), NULL, | |
b84aa90a PA |
1390 | set_range_command, |
1391 | show_range_command, | |
1392 | &setchecklist, &showchecklist); | |
1393 | ||
1394 | add_setshow_enum_cmd ("case-sensitive", class_support, case_sensitive_names, | |
1395 | &case_sensitive, _("\ | |
4d28ad1e AC |
1396 | Set case sensitivity in name search. (on/off/auto)"), _("\ |
1397 | Show case sensitivity in name search. (on/off/auto)"), _("\ | |
1398 | For Fortran the default is off; for other languages the default is on."), | |
b84aa90a PA |
1399 | set_case_command, |
1400 | show_case_command, | |
1401 | &setlist, &showlist); | |
63872f9d | 1402 | |
c5aa993b | 1403 | add_language (&auto_language_defn); |
b84aa90a PA |
1404 | add_language (&local_language_defn); |
1405 | add_language (&unknown_language_defn); | |
c5aa993b | 1406 | |
1b36a34b JK |
1407 | language = xstrdup ("auto"); |
1408 | type = xstrdup ("auto"); | |
1409 | range = xstrdup ("auto"); | |
1410 | case_sensitive = xstrdup ("auto"); | |
63872f9d JG |
1411 | |
1412 | /* Have the above take effect */ | |
1413 | set_language (language_auto); | |
c906108c | 1414 | } |