Commit | Line | Data |
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c906108c | 1 | /* Multiple source language support for GDB. |
1bac305b | 2 | |
6aba47ca | 3 | Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, |
7b6bb8da | 4 | 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011 |
4c38e0a4 | 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, | |
1777feb0 | 27 | and return the appropriate result. */ |
c906108c SS |
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 | 89 | |
1777feb0 | 90 | /* The current language and language_mode (see language.h). */ |
c906108c SS |
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 | |
1777feb0 | 115 | frame do not match. */ |
c906108c | 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 | |
1777feb0 | 120 | and their helpers. */ |
c906108c SS |
121 | |
122 | /* Show command. Display a warning if the language set | |
1777feb0 | 123 | does not match the frame. */ |
c906108c | 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 | { |
1777feb0 | 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 | |
3e43a32a MS |
136 | fprintf_filtered (gdb_stdout, |
137 | _("The current source language is \"%s\".\n"), | |
b84aa90a PA |
138 | current_language->la_name); |
139 | ||
c5aa993b JM |
140 | flang = get_frame_language (); |
141 | if (flang != language_unknown && | |
142 | language_mode == language_mode_manual && | |
143 | current_language->la_language != flang) | |
144 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
c906108c SS |
145 | } |
146 | ||
1777feb0 | 147 | /* Set command. Change the current working language. */ |
c906108c | 148 | static void |
4d28ad1e | 149 | set_language_command (char *ignore, int from_tty, struct cmd_list_element *c) |
c906108c | 150 | { |
5efd5804 | 151 | int i; |
c906108c | 152 | enum language flang; |
c906108c SS |
153 | |
154 | /* Search the list of languages for a match. */ | |
c5aa993b JM |
155 | for (i = 0; i < languages_size; i++) |
156 | { | |
6314a349 | 157 | if (strcmp (languages[i]->la_name, language) == 0) |
c5aa993b JM |
158 | { |
159 | /* Found it! Go into manual mode, and use this language. */ | |
160 | if (languages[i]->la_language == language_auto) | |
161 | { | |
8b60591b JB |
162 | /* Enter auto mode. Set to the current frame's language, if |
163 | known, or fallback to the initial language. */ | |
c5aa993b JM |
164 | language_mode = language_mode_auto; |
165 | flang = get_frame_language (); | |
166 | if (flang != language_unknown) | |
167 | set_language (flang); | |
8b60591b JB |
168 | else |
169 | set_initial_language (); | |
c5aa993b JM |
170 | expected_language = current_language; |
171 | return; | |
172 | } | |
173 | else | |
174 | { | |
175 | /* Enter manual mode. Set the specified language. */ | |
176 | language_mode = language_mode_manual; | |
177 | current_language = languages[i]; | |
63872f9d | 178 | set_type_range_case (); |
c5aa993b JM |
179 | expected_language = current_language; |
180 | return; | |
181 | } | |
182 | } | |
c906108c | 183 | } |
c906108c | 184 | |
b84aa90a PA |
185 | internal_error (__FILE__, __LINE__, |
186 | "Couldn't find language `%s' in known languages list.", | |
187 | language); | |
c906108c SS |
188 | } |
189 | ||
190 | /* Show command. Display a warning if the type setting does | |
1777feb0 | 191 | not match the current language. */ |
c906108c | 192 | static void |
4d28ad1e AC |
193 | show_type_command (struct ui_file *file, int from_tty, |
194 | struct cmd_list_element *c, const char *value) | |
c906108c | 195 | { |
b84aa90a PA |
196 | if (type_mode == type_mode_auto) |
197 | { | |
198 | char *tmp = NULL; | |
199 | ||
200 | switch (type_check) | |
201 | { | |
202 | case type_check_on: | |
203 | tmp = "on"; | |
204 | break; | |
205 | case type_check_off: | |
206 | tmp = "off"; | |
207 | break; | |
208 | case type_check_warn: | |
209 | tmp = "warn"; | |
210 | break; | |
211 | default: | |
212 | internal_error (__FILE__, __LINE__, | |
213 | "Unrecognized type check setting."); | |
214 | } | |
215 | ||
216 | fprintf_filtered (gdb_stdout, | |
217 | _("Type checking is \"auto; currently %s\".\n"), | |
218 | tmp); | |
219 | } | |
220 | else | |
221 | fprintf_filtered (gdb_stdout, _("Type checking is \"%s\".\n"), | |
222 | value); | |
223 | ||
224 | if (type_check != current_language->la_type_check) | |
225 | warning (_("the current type check setting" | |
226 | " does not match the language.\n")); | |
c906108c SS |
227 | } |
228 | ||
1777feb0 | 229 | /* Set command. Change the setting for type checking. */ |
c906108c | 230 | static void |
4d28ad1e | 231 | set_type_command (char *ignore, int from_tty, struct cmd_list_element *c) |
c906108c | 232 | { |
6314a349 | 233 | if (strcmp (type, "on") == 0) |
c5aa993b | 234 | { |
c906108c SS |
235 | type_check = type_check_on; |
236 | type_mode = type_mode_manual; | |
c5aa993b | 237 | } |
6314a349 | 238 | else if (strcmp (type, "warn") == 0) |
c5aa993b | 239 | { |
c906108c SS |
240 | type_check = type_check_warn; |
241 | type_mode = type_mode_manual; | |
c5aa993b | 242 | } |
6314a349 | 243 | else if (strcmp (type, "off") == 0) |
c5aa993b | 244 | { |
c906108c SS |
245 | type_check = type_check_off; |
246 | type_mode = type_mode_manual; | |
c5aa993b | 247 | } |
6314a349 | 248 | else if (strcmp (type, "auto") == 0) |
c5aa993b | 249 | { |
c906108c | 250 | type_mode = type_mode_auto; |
63872f9d | 251 | set_type_range_case (); |
c906108c | 252 | return; |
c5aa993b | 253 | } |
c4093a6a | 254 | else |
b84aa90a PA |
255 | internal_error (__FILE__, __LINE__, |
256 | _("Unrecognized type check setting: \"%s\""), type); | |
257 | ||
258 | if (type_check != current_language->la_type_check) | |
259 | warning (_("the current type check setting" | |
260 | " does not match the language.\n")); | |
c906108c SS |
261 | } |
262 | ||
263 | /* Show command. Display a warning if the range setting does | |
1777feb0 | 264 | not match the current language. */ |
c906108c | 265 | static void |
4d28ad1e AC |
266 | show_range_command (struct ui_file *file, int from_tty, |
267 | struct cmd_list_element *c, const char *value) | |
c906108c | 268 | { |
b84aa90a PA |
269 | if (range_mode == range_mode_auto) |
270 | { | |
271 | char *tmp; | |
272 | ||
273 | switch (range_check) | |
274 | { | |
275 | case range_check_on: | |
276 | tmp = "on"; | |
277 | break; | |
278 | case range_check_off: | |
279 | tmp = "off"; | |
280 | break; | |
281 | case range_check_warn: | |
282 | tmp = "warn"; | |
283 | break; | |
284 | default: | |
285 | internal_error (__FILE__, __LINE__, | |
286 | "Unrecognized range check setting."); | |
287 | } | |
288 | ||
289 | fprintf_filtered (gdb_stdout, | |
290 | _("Range checking is \"auto; currently %s\".\n"), | |
291 | tmp); | |
292 | } | |
293 | else | |
294 | fprintf_filtered (gdb_stdout, _("Range checking is \"%s\".\n"), | |
295 | value); | |
296 | ||
c5aa993b | 297 | if (range_check != current_language->la_range_check) |
b84aa90a PA |
298 | warning (_("the current range check setting " |
299 | "does not match the language.\n")); | |
c906108c SS |
300 | } |
301 | ||
1777feb0 | 302 | /* Set command. Change the setting for range checking. */ |
c906108c | 303 | static void |
4d28ad1e | 304 | set_range_command (char *ignore, int from_tty, struct cmd_list_element *c) |
c906108c | 305 | { |
6314a349 | 306 | if (strcmp (range, "on") == 0) |
c5aa993b | 307 | { |
c906108c SS |
308 | range_check = range_check_on; |
309 | range_mode = range_mode_manual; | |
c5aa993b | 310 | } |
6314a349 | 311 | else if (strcmp (range, "warn") == 0) |
c5aa993b | 312 | { |
c906108c SS |
313 | range_check = range_check_warn; |
314 | range_mode = range_mode_manual; | |
c5aa993b | 315 | } |
6314a349 | 316 | else if (strcmp (range, "off") == 0) |
c5aa993b | 317 | { |
c906108c SS |
318 | range_check = range_check_off; |
319 | range_mode = range_mode_manual; | |
c5aa993b | 320 | } |
6314a349 | 321 | else if (strcmp (range, "auto") == 0) |
c5aa993b | 322 | { |
c906108c | 323 | range_mode = range_mode_auto; |
63872f9d | 324 | set_type_range_case (); |
c906108c | 325 | return; |
c5aa993b | 326 | } |
c4093a6a JM |
327 | else |
328 | { | |
b84aa90a PA |
329 | internal_error (__FILE__, __LINE__, |
330 | _("Unrecognized range check setting: \"%s\""), range); | |
c4093a6a | 331 | } |
b84aa90a PA |
332 | if (range_check != current_language->la_range_check) |
333 | warning (_("the current range check setting " | |
334 | "does not match the language.\n")); | |
c906108c SS |
335 | } |
336 | ||
63872f9d | 337 | /* Show command. Display a warning if the case sensitivity setting does |
1777feb0 | 338 | not match the current language. */ |
63872f9d | 339 | static void |
4d28ad1e AC |
340 | show_case_command (struct ui_file *file, int from_tty, |
341 | struct cmd_list_element *c, const char *value) | |
63872f9d | 342 | { |
b84aa90a PA |
343 | if (case_mode == case_mode_auto) |
344 | { | |
345 | char *tmp = NULL; | |
346 | ||
347 | switch (case_sensitivity) | |
348 | { | |
349 | case case_sensitive_on: | |
350 | tmp = "on"; | |
351 | break; | |
352 | case case_sensitive_off: | |
353 | tmp = "off"; | |
354 | break; | |
355 | default: | |
356 | internal_error (__FILE__, __LINE__, | |
357 | "Unrecognized case-sensitive setting."); | |
358 | } | |
359 | ||
360 | fprintf_filtered (gdb_stdout, | |
361 | _("Case sensitivity in " | |
362 | "name search is \"auto; currently %s\".\n"), | |
363 | tmp); | |
364 | } | |
365 | else | |
3e43a32a MS |
366 | fprintf_filtered (gdb_stdout, |
367 | _("Case sensitivity in name search is \"%s\".\n"), | |
b84aa90a PA |
368 | value); |
369 | ||
4d28ad1e | 370 | if (case_sensitivity != current_language->la_case_sensitivity) |
b84aa90a PA |
371 | warning (_("the current case sensitivity setting does not match " |
372 | "the language.\n")); | |
63872f9d JG |
373 | } |
374 | ||
591e78ff MK |
375 | /* Set command. Change the setting for case sensitivity. */ |
376 | ||
63872f9d | 377 | static void |
4d28ad1e | 378 | set_case_command (char *ignore, int from_tty, struct cmd_list_element *c) |
63872f9d | 379 | { |
591e78ff MK |
380 | if (strcmp (case_sensitive, "on") == 0) |
381 | { | |
382 | case_sensitivity = case_sensitive_on; | |
383 | case_mode = case_mode_manual; | |
384 | } | |
385 | else if (strcmp (case_sensitive, "off") == 0) | |
386 | { | |
387 | case_sensitivity = case_sensitive_off; | |
388 | case_mode = case_mode_manual; | |
389 | } | |
390 | else if (strcmp (case_sensitive, "auto") == 0) | |
391 | { | |
392 | case_mode = case_mode_auto; | |
393 | set_type_range_case (); | |
591e78ff MK |
394 | return; |
395 | } | |
63872f9d | 396 | else |
591e78ff | 397 | { |
b84aa90a PA |
398 | internal_error (__FILE__, __LINE__, |
399 | "Unrecognized case-sensitive setting: \"%s\"", | |
400 | case_sensitive); | |
591e78ff | 401 | } |
b84aa90a PA |
402 | |
403 | if (case_sensitivity != current_language->la_case_sensitivity) | |
404 | warning (_("the current case sensitivity setting does not match " | |
405 | "the language.\n")); | |
63872f9d JG |
406 | } |
407 | ||
408 | /* Set the status of range and type checking and case sensitivity based on | |
c906108c SS |
409 | the current modes and the current language. |
410 | If SHOW is non-zero, then print out the current language, | |
1777feb0 | 411 | type and range checking status. */ |
c906108c | 412 | static void |
63872f9d | 413 | set_type_range_case (void) |
c906108c | 414 | { |
c906108c SS |
415 | if (range_mode == range_mode_auto) |
416 | range_check = current_language->la_range_check; | |
417 | ||
418 | if (type_mode == type_mode_auto) | |
419 | type_check = current_language->la_type_check; | |
420 | ||
63872f9d JG |
421 | if (case_mode == case_mode_auto) |
422 | case_sensitivity = current_language->la_case_sensitivity; | |
c906108c SS |
423 | } |
424 | ||
1777feb0 MS |
425 | /* Set current language to (enum language) LANG. Returns previous |
426 | language. */ | |
c906108c SS |
427 | |
428 | enum language | |
fba45db2 | 429 | set_language (enum language lang) |
c906108c SS |
430 | { |
431 | int i; | |
432 | enum language prev_language; | |
433 | ||
434 | prev_language = current_language->la_language; | |
435 | ||
c5aa993b JM |
436 | for (i = 0; i < languages_size; i++) |
437 | { | |
438 | if (languages[i]->la_language == lang) | |
439 | { | |
440 | current_language = languages[i]; | |
63872f9d | 441 | set_type_range_case (); |
c5aa993b JM |
442 | break; |
443 | } | |
c906108c | 444 | } |
c906108c SS |
445 | |
446 | return prev_language; | |
447 | } | |
448 | \f | |
c906108c SS |
449 | |
450 | /* Print out the current language settings: language, range and | |
451 | type checking. If QUIETLY, print only what has changed. */ | |
452 | ||
453 | void | |
fba45db2 | 454 | language_info (int quietly) |
c906108c SS |
455 | { |
456 | if (quietly && expected_language == current_language) | |
457 | return; | |
458 | ||
459 | expected_language = current_language; | |
a3f17187 | 460 | printf_unfiltered (_("Current language: %s\n"), language); |
4d28ad1e | 461 | show_language_command (NULL, 1, NULL, NULL); |
c906108c SS |
462 | |
463 | if (!quietly) | |
464 | { | |
a3f17187 | 465 | printf_unfiltered (_("Type checking: %s\n"), type); |
4d28ad1e | 466 | show_type_command (NULL, 1, NULL, NULL); |
a3f17187 | 467 | printf_unfiltered (_("Range checking: %s\n"), range); |
4d28ad1e | 468 | show_range_command (NULL, 1, NULL, NULL); |
a3f17187 | 469 | printf_unfiltered (_("Case sensitivity: %s\n"), case_sensitive); |
4d28ad1e | 470 | show_case_command (NULL, 1, NULL, NULL); |
c906108c SS |
471 | } |
472 | } | |
473 | \f | |
1777feb0 | 474 | /* Return the result of a binary operation. */ |
c906108c | 475 | |
c5aa993b | 476 | #if 0 /* Currently unused */ |
c906108c SS |
477 | |
478 | struct type * | |
3d6d86c6 | 479 | binop_result_type (struct value *v1, struct value *v2) |
c906108c | 480 | { |
c5aa993b JM |
481 | int size, uns; |
482 | struct type *t1 = check_typedef (VALUE_TYPE (v1)); | |
483 | struct type *t2 = check_typedef (VALUE_TYPE (v2)); | |
484 | ||
485 | int l1 = TYPE_LENGTH (t1); | |
486 | int l2 = TYPE_LENGTH (t2); | |
487 | ||
488 | switch (current_language->la_language) | |
489 | { | |
490 | case language_c: | |
491 | case language_cplus: | |
6aecb9c2 | 492 | case language_d: |
eb392fbf | 493 | case language_objc: |
c5aa993b JM |
494 | if (TYPE_CODE (t1) == TYPE_CODE_FLT) |
495 | return TYPE_CODE (t2) == TYPE_CODE_FLT && l2 > l1 ? | |
496 | VALUE_TYPE (v2) : VALUE_TYPE (v1); | |
497 | else if (TYPE_CODE (t2) == TYPE_CODE_FLT) | |
498 | return TYPE_CODE (t1) == TYPE_CODE_FLT && l1 > l2 ? | |
499 | VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
500 | else if (TYPE_UNSIGNED (t1) && l1 > l2) | |
501 | return VALUE_TYPE (v1); | |
502 | else if (TYPE_UNSIGNED (t2) && l2 > l1) | |
503 | return VALUE_TYPE (v2); | |
3e43a32a MS |
504 | else /* Both are signed. Result is the |
505 | longer type. */ | |
c5aa993b | 506 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); |
c906108c | 507 | break; |
c5aa993b | 508 | case language_m2: |
c906108c | 509 | /* If we are doing type-checking, l1 should equal l2, so this is |
1777feb0 | 510 | not needed. */ |
c5aa993b | 511 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); |
c906108c | 512 | break; |
c5aa993b | 513 | } |
e2e0b3e5 | 514 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c5aa993b | 515 | return (struct type *) 0; /* For lint */ |
c906108c SS |
516 | } |
517 | ||
c5aa993b | 518 | #endif /* 0 */ |
c906108c SS |
519 | #if 0 |
520 | /* This page contains functions that are used in type/range checking. | |
521 | They all return zero if the type/range check fails. | |
522 | ||
523 | It is hoped that these will make extending GDB to parse different | |
524 | languages a little easier. These are primarily used in eval.c when | |
525 | evaluating expressions and making sure that their types are correct. | |
526 | Instead of having a mess of conjucted/disjuncted expressions in an "if", | |
527 | the ideas of type can be wrapped up in the following functions. | |
528 | ||
529 | Note that some of them are not currently dependent upon which language | |
530 | is currently being parsed. For example, floats are the same in | |
531 | C and Modula-2 (ie. the only floating point type has TYPE_CODE of | |
1777feb0 | 532 | TYPE_CODE_FLT), while booleans are different. */ |
c906108c SS |
533 | |
534 | /* Returns non-zero if its argument is a simple type. This is the same for | |
535 | both Modula-2 and for C. In the C case, TYPE_CODE_CHAR will never occur, | |
1777feb0 | 536 | and thus will never cause the failure of the test. */ |
c906108c | 537 | int |
fba45db2 | 538 | simple_type (struct type *type) |
c906108c SS |
539 | { |
540 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
541 | switch (TYPE_CODE (type)) |
542 | { | |
543 | case TYPE_CODE_INT: | |
544 | case TYPE_CODE_CHAR: | |
545 | case TYPE_CODE_ENUM: | |
546 | case TYPE_CODE_FLT: | |
547 | case TYPE_CODE_RANGE: | |
548 | case TYPE_CODE_BOOL: | |
549 | return 1; | |
c906108c | 550 | |
c5aa993b JM |
551 | default: |
552 | return 0; | |
553 | } | |
c906108c SS |
554 | } |
555 | ||
556 | /* Returns non-zero if its argument is of an ordered type. | |
557 | An ordered type is one in which the elements can be tested for the | |
558 | properties of "greater than", "less than", etc, or for which the | |
1777feb0 | 559 | operations "increment" or "decrement" make sense. */ |
c906108c | 560 | int |
fba45db2 | 561 | ordered_type (struct type *type) |
c906108c SS |
562 | { |
563 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
564 | switch (TYPE_CODE (type)) |
565 | { | |
566 | case TYPE_CODE_INT: | |
567 | case TYPE_CODE_CHAR: | |
568 | case TYPE_CODE_ENUM: | |
569 | case TYPE_CODE_FLT: | |
570 | case TYPE_CODE_RANGE: | |
571 | return 1; | |
c906108c | 572 | |
c5aa993b JM |
573 | default: |
574 | return 0; | |
575 | } | |
c906108c SS |
576 | } |
577 | ||
1777feb0 | 578 | /* Returns non-zero if the two types are the same. */ |
c906108c | 579 | int |
fba45db2 | 580 | same_type (struct type *arg1, struct type *arg2) |
c906108c SS |
581 | { |
582 | CHECK_TYPEDEF (type); | |
3e43a32a MS |
583 | if (structured_type (arg1) |
584 | ? !structured_type (arg2) : structured_type (arg2)) | |
1777feb0 | 585 | /* One is structured and one isn't. */ |
c5aa993b JM |
586 | return 0; |
587 | else if (structured_type (arg1) && structured_type (arg2)) | |
588 | return arg1 == arg2; | |
589 | else if (numeric_type (arg1) && numeric_type (arg2)) | |
590 | return (TYPE_CODE (arg2) == TYPE_CODE (arg1)) && | |
591 | (TYPE_UNSIGNED (arg1) == TYPE_UNSIGNED (arg2)) | |
592 | ? 1 : 0; | |
593 | else | |
594 | return arg1 == arg2; | |
c906108c SS |
595 | } |
596 | ||
1777feb0 | 597 | /* Returns non-zero if the type is integral. */ |
c906108c | 598 | int |
fba45db2 | 599 | integral_type (struct type *type) |
c906108c SS |
600 | { |
601 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
602 | switch (current_language->la_language) |
603 | { | |
604 | case language_c: | |
605 | case language_cplus: | |
6aecb9c2 | 606 | case language_d: |
eb392fbf | 607 | case language_objc: |
c5aa993b JM |
608 | return (TYPE_CODE (type) != TYPE_CODE_INT) && |
609 | (TYPE_CODE (type) != TYPE_CODE_ENUM) ? 0 : 1; | |
610 | case language_m2: | |
750ba382 | 611 | case language_pascal: |
c5aa993b | 612 | return TYPE_CODE (type) != TYPE_CODE_INT ? 0 : 1; |
c5aa993b | 613 | default: |
8a3fe4f8 | 614 | error (_("Language not supported.")); |
c5aa993b | 615 | } |
c906108c SS |
616 | } |
617 | ||
1777feb0 | 618 | /* Returns non-zero if the value is numeric. */ |
c906108c | 619 | int |
fba45db2 | 620 | numeric_type (struct type *type) |
c906108c SS |
621 | { |
622 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
623 | switch (TYPE_CODE (type)) |
624 | { | |
625 | case TYPE_CODE_INT: | |
626 | case TYPE_CODE_FLT: | |
627 | return 1; | |
c906108c | 628 | |
c5aa993b JM |
629 | default: |
630 | return 0; | |
631 | } | |
c906108c SS |
632 | } |
633 | ||
1777feb0 | 634 | /* Returns non-zero if the value is a character type. */ |
c906108c | 635 | int |
fba45db2 | 636 | character_type (struct type *type) |
c906108c SS |
637 | { |
638 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
639 | switch (current_language->la_language) |
640 | { | |
c5aa993b | 641 | case language_m2: |
750ba382 | 642 | case language_pascal: |
c5aa993b JM |
643 | return TYPE_CODE (type) != TYPE_CODE_CHAR ? 0 : 1; |
644 | ||
645 | case language_c: | |
646 | case language_cplus: | |
6aecb9c2 | 647 | case language_d: |
eb392fbf | 648 | case language_objc: |
c5aa993b JM |
649 | return (TYPE_CODE (type) == TYPE_CODE_INT) && |
650 | TYPE_LENGTH (type) == sizeof (char) | |
651 | ? 1 : 0; | |
652 | default: | |
c906108c | 653 | return (0); |
c5aa993b | 654 | } |
c906108c SS |
655 | } |
656 | ||
1777feb0 | 657 | /* Returns non-zero if the value is a string type. */ |
c906108c | 658 | int |
fba45db2 | 659 | string_type (struct type *type) |
c906108c SS |
660 | { |
661 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
662 | switch (current_language->la_language) |
663 | { | |
c5aa993b | 664 | case language_m2: |
750ba382 | 665 | case language_pascal: |
c5aa993b JM |
666 | return TYPE_CODE (type) != TYPE_CODE_STRING ? 0 : 1; |
667 | ||
668 | case language_c: | |
669 | case language_cplus: | |
6aecb9c2 | 670 | case language_d: |
eb392fbf | 671 | case language_objc: |
1777feb0 | 672 | /* C does not have distinct string type. */ |
c906108c | 673 | return (0); |
c5aa993b | 674 | default: |
c906108c | 675 | return (0); |
c5aa993b | 676 | } |
c906108c SS |
677 | } |
678 | ||
1777feb0 | 679 | /* Returns non-zero if the value is a boolean type. */ |
c906108c | 680 | int |
fba45db2 | 681 | boolean_type (struct type *type) |
c906108c SS |
682 | { |
683 | CHECK_TYPEDEF (type); | |
684 | if (TYPE_CODE (type) == TYPE_CODE_BOOL) | |
685 | return 1; | |
c5aa993b | 686 | switch (current_language->la_language) |
c906108c SS |
687 | { |
688 | case language_c: | |
689 | case language_cplus: | |
6aecb9c2 | 690 | case language_d: |
eb392fbf | 691 | case language_objc: |
db034ac5 | 692 | /* Might be more cleanly handled by having a |
1b831c93 | 693 | TYPE_CODE_INT_NOT_BOOL for (the deleted) CHILL and such |
db034ac5 | 694 | languages, or a TYPE_CODE_INT_OR_BOOL for C. */ |
c906108c SS |
695 | if (TYPE_CODE (type) == TYPE_CODE_INT) |
696 | return 1; | |
c5aa993b | 697 | default: |
c906108c | 698 | break; |
c5aa993b | 699 | } |
c906108c SS |
700 | return 0; |
701 | } | |
702 | ||
1777feb0 | 703 | /* Returns non-zero if the value is a floating-point type. */ |
c906108c | 704 | int |
fba45db2 | 705 | float_type (struct type *type) |
c906108c SS |
706 | { |
707 | CHECK_TYPEDEF (type); | |
c5aa993b | 708 | return TYPE_CODE (type) == TYPE_CODE_FLT; |
c906108c | 709 | } |
b97aedf3 | 710 | #endif |
c906108c | 711 | |
1777feb0 | 712 | /* Returns non-zero if the value is a pointer type. */ |
c906108c | 713 | int |
fba45db2 | 714 | pointer_type (struct type *type) |
c906108c | 715 | { |
c5aa993b JM |
716 | return TYPE_CODE (type) == TYPE_CODE_PTR || |
717 | TYPE_CODE (type) == TYPE_CODE_REF; | |
c906108c SS |
718 | } |
719 | ||
b97aedf3 | 720 | #if 0 |
1777feb0 | 721 | /* Returns non-zero if the value is a structured type. */ |
c906108c | 722 | int |
fba45db2 | 723 | structured_type (struct type *type) |
c906108c SS |
724 | { |
725 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
726 | switch (current_language->la_language) |
727 | { | |
728 | case language_c: | |
729 | case language_cplus: | |
6aecb9c2 | 730 | case language_d: |
eb392fbf | 731 | case language_objc: |
c5aa993b JM |
732 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || |
733 | (TYPE_CODE (type) == TYPE_CODE_UNION) || | |
734 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
750ba382 PM |
735 | case language_pascal: |
736 | return (TYPE_CODE(type) == TYPE_CODE_STRUCT) || | |
737 | (TYPE_CODE(type) == TYPE_CODE_UNION) || | |
738 | (TYPE_CODE(type) == TYPE_CODE_SET) || | |
739 | (TYPE_CODE(type) == TYPE_CODE_ARRAY); | |
c5aa993b JM |
740 | case language_m2: |
741 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || | |
742 | (TYPE_CODE (type) == TYPE_CODE_SET) || | |
743 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
c5aa993b | 744 | default: |
c906108c | 745 | return (0); |
c5aa993b | 746 | } |
c906108c SS |
747 | } |
748 | #endif | |
749 | \f | |
c906108c | 750 | /* This page contains functions that return info about |
1777feb0 | 751 | (struct value) values used in GDB. */ |
c906108c | 752 | |
1777feb0 | 753 | /* Returns non-zero if the value VAL represents a true value. */ |
c906108c | 754 | int |
3d6d86c6 | 755 | value_true (struct value *val) |
c906108c SS |
756 | { |
757 | /* It is possible that we should have some sort of error if a non-boolean | |
758 | value is used in this context. Possibly dependent on some kind of | |
759 | "boolean-checking" option like range checking. But it should probably | |
760 | not depend on the language except insofar as is necessary to identify | |
761 | a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean | |
762 | should be an error, probably). */ | |
763 | return !value_logical_not (val); | |
764 | } | |
765 | \f | |
c906108c SS |
766 | /* This page contains functions for the printing out of |
767 | error messages that occur during type- and range- | |
1777feb0 | 768 | checking. */ |
c906108c | 769 | |
ddfe3c15 AC |
770 | /* These are called when a language fails a type- or range-check. The |
771 | first argument should be a printf()-style format string, and the | |
772 | rest of the arguments should be its arguments. If | |
773 | [type|range]_check is [type|range]_check_on, an error is printed; | |
774 | if [type|range]_check_warn, a warning; otherwise just the | |
1777feb0 | 775 | message. */ |
c906108c SS |
776 | |
777 | void | |
ddfe3c15 | 778 | type_error (const char *string,...) |
c906108c | 779 | { |
c5aa993b | 780 | va_list args; |
c906108c | 781 | |
e0881a8e | 782 | va_start (args, string); |
ddfe3c15 AC |
783 | switch (type_check) |
784 | { | |
785 | case type_check_warn: | |
786 | vwarning (string, args); | |
787 | break; | |
788 | case type_check_on: | |
789 | verror (string, args); | |
790 | break; | |
791 | case type_check_off: | |
792 | /* FIXME: cagney/2002-01-30: Should this function print anything | |
793 | when type error is off? */ | |
794 | vfprintf_filtered (gdb_stderr, string, args); | |
795 | fprintf_filtered (gdb_stderr, "\n"); | |
796 | break; | |
797 | default: | |
e2e0b3e5 | 798 | internal_error (__FILE__, __LINE__, _("bad switch")); |
ddfe3c15 | 799 | } |
c5aa993b | 800 | va_end (args); |
c906108c SS |
801 | } |
802 | ||
803 | void | |
ddfe3c15 | 804 | range_error (const char *string,...) |
c906108c | 805 | { |
c5aa993b | 806 | va_list args; |
c906108c | 807 | |
e0881a8e | 808 | va_start (args, string); |
ddfe3c15 AC |
809 | switch (range_check) |
810 | { | |
811 | case range_check_warn: | |
812 | vwarning (string, args); | |
813 | break; | |
814 | case range_check_on: | |
815 | verror (string, args); | |
816 | break; | |
817 | case range_check_off: | |
818 | /* FIXME: cagney/2002-01-30: Should this function print anything | |
819 | when range error is off? */ | |
820 | vfprintf_filtered (gdb_stderr, string, args); | |
821 | fprintf_filtered (gdb_stderr, "\n"); | |
822 | break; | |
823 | default: | |
e2e0b3e5 | 824 | internal_error (__FILE__, __LINE__, _("bad switch")); |
ddfe3c15 | 825 | } |
c5aa993b | 826 | va_end (args); |
c906108c | 827 | } |
c906108c | 828 | \f |
c5aa993b | 829 | |
1777feb0 | 830 | /* This page contains miscellaneous functions. */ |
c906108c | 831 | |
1777feb0 | 832 | /* Return the language enum for a given language string. */ |
c906108c SS |
833 | |
834 | enum language | |
fba45db2 | 835 | language_enum (char *str) |
c906108c SS |
836 | { |
837 | int i; | |
838 | ||
c5aa993b | 839 | for (i = 0; i < languages_size; i++) |
591e78ff | 840 | if (strcmp (languages[i]->la_name, str) == 0) |
c906108c SS |
841 | return languages[i]->la_language; |
842 | ||
843 | return language_unknown; | |
844 | } | |
845 | ||
1777feb0 | 846 | /* Return the language struct for a given language enum. */ |
c906108c SS |
847 | |
848 | const struct language_defn * | |
fba45db2 | 849 | language_def (enum language lang) |
c906108c SS |
850 | { |
851 | int i; | |
852 | ||
c5aa993b JM |
853 | for (i = 0; i < languages_size; i++) |
854 | { | |
855 | if (languages[i]->la_language == lang) | |
856 | { | |
857 | return languages[i]; | |
858 | } | |
c906108c | 859 | } |
c906108c SS |
860 | return NULL; |
861 | } | |
862 | ||
1777feb0 | 863 | /* Return the language as a string. */ |
c906108c | 864 | char * |
fba45db2 | 865 | language_str (enum language lang) |
c906108c SS |
866 | { |
867 | int i; | |
868 | ||
c5aa993b JM |
869 | for (i = 0; i < languages_size; i++) |
870 | { | |
871 | if (languages[i]->la_language == lang) | |
872 | { | |
873 | return languages[i]->la_name; | |
874 | } | |
c906108c | 875 | } |
c906108c SS |
876 | return "Unknown"; |
877 | } | |
878 | ||
879 | static void | |
fba45db2 | 880 | set_check (char *ignore, int from_tty) |
c906108c | 881 | { |
c5aa993b JM |
882 | printf_unfiltered ( |
883 | "\"set check\" must be followed by the name of a check subcommand.\n"); | |
884 | help_list (setchecklist, "set check ", -1, gdb_stdout); | |
c906108c SS |
885 | } |
886 | ||
887 | static void | |
fba45db2 | 888 | show_check (char *ignore, int from_tty) |
c906108c | 889 | { |
c5aa993b | 890 | cmd_show_list (showchecklist, from_tty, ""); |
c906108c SS |
891 | } |
892 | \f | |
893 | /* Add a language to the set of known languages. */ | |
894 | ||
895 | void | |
fba45db2 | 896 | add_language (const struct language_defn *lang) |
c906108c | 897 | { |
b84aa90a PA |
898 | /* For the "set language" command. */ |
899 | static char **language_names = NULL; | |
900 | /* For the "help set language" command. */ | |
1eefb858 | 901 | char *language_set_doc = NULL; |
b84aa90a PA |
902 | |
903 | int i; | |
904 | struct ui_file *tmp_stream; | |
b84aa90a | 905 | |
c906108c SS |
906 | if (lang->la_magic != LANG_MAGIC) |
907 | { | |
3e43a32a MS |
908 | fprintf_unfiltered (gdb_stderr, |
909 | "Magic number of %s language struct wrong\n", | |
c5aa993b | 910 | lang->la_name); |
3e43a32a MS |
911 | internal_error (__FILE__, __LINE__, |
912 | _("failed internal consistency check")); | |
c906108c SS |
913 | } |
914 | ||
915 | if (!languages) | |
916 | { | |
917 | languages_allocsize = DEFAULT_ALLOCSIZE; | |
918 | languages = (const struct language_defn **) xmalloc | |
919 | (languages_allocsize * sizeof (*languages)); | |
920 | } | |
921 | if (languages_size >= languages_allocsize) | |
922 | { | |
923 | languages_allocsize *= 2; | |
924 | languages = (const struct language_defn **) xrealloc ((char *) languages, | |
c5aa993b | 925 | languages_allocsize * sizeof (*languages)); |
c906108c SS |
926 | } |
927 | languages[languages_size++] = lang; | |
b84aa90a PA |
928 | |
929 | /* Build the language names array, to be used as enumeration in the | |
930 | set language" enum command. */ | |
931 | language_names = xrealloc (language_names, | |
932 | (languages_size + 1) * sizeof (const char *)); | |
933 | for (i = 0; i < languages_size; ++i) | |
934 | language_names[i] = languages[i]->la_name; | |
935 | language_names[i] = NULL; | |
936 | ||
937 | /* Build the "help set language" docs. */ | |
938 | tmp_stream = mem_fileopen (); | |
939 | ||
3e43a32a MS |
940 | fprintf_unfiltered (tmp_stream, |
941 | _("Set the current source language.\n" | |
942 | "The currently understood settings are:\n\nlocal or " | |
943 | "auto Automatic setting based on source file\n")); | |
b84aa90a PA |
944 | |
945 | for (i = 0; i < languages_size; ++i) | |
946 | { | |
947 | /* Already dealt with these above. */ | |
948 | if (languages[i]->la_language == language_unknown | |
949 | || languages[i]->la_language == language_auto) | |
950 | continue; | |
951 | ||
952 | /* FIXME: i18n: for now assume that the human-readable name | |
953 | is just a capitalization of the internal name. */ | |
954 | fprintf_unfiltered (tmp_stream, "%-16s Use the %c%s language\n", | |
955 | languages[i]->la_name, | |
956 | /* Capitalize first letter of language | |
957 | name. */ | |
958 | toupper (languages[i]->la_name[0]), | |
959 | languages[i]->la_name + 1); | |
960 | } | |
961 | ||
759ef836 | 962 | language_set_doc = ui_file_xstrdup (tmp_stream, NULL); |
b84aa90a PA |
963 | ui_file_delete (tmp_stream); |
964 | ||
965 | add_setshow_enum_cmd ("language", class_support, | |
966 | (const char **) language_names, | |
967 | &language, | |
3e43a32a MS |
968 | language_set_doc, |
969 | _("Show the current source language."), | |
970 | NULL, set_language_command, | |
b84aa90a PA |
971 | show_language_command, |
972 | &setlist, &showlist); | |
1eefb858 TT |
973 | |
974 | xfree (language_set_doc); | |
c906108c SS |
975 | } |
976 | ||
f636b87d AF |
977 | /* Iterate through all registered languages looking for and calling |
978 | any non-NULL struct language_defn.skip_trampoline() functions. | |
979 | Return the result from the first that returns non-zero, or 0 if all | |
980 | `fail'. */ | |
981 | CORE_ADDR | |
52f729a7 | 982 | skip_language_trampoline (struct frame_info *frame, CORE_ADDR pc) |
f636b87d AF |
983 | { |
984 | int i; | |
985 | ||
986 | for (i = 0; i < languages_size; i++) | |
987 | { | |
988 | if (languages[i]->skip_trampoline) | |
989 | { | |
52f729a7 | 990 | CORE_ADDR real_pc = (languages[i]->skip_trampoline) (frame, pc); |
e0881a8e | 991 | |
f636b87d AF |
992 | if (real_pc) |
993 | return real_pc; | |
994 | } | |
995 | } | |
996 | ||
997 | return 0; | |
998 | } | |
999 | ||
1777feb0 | 1000 | /* Return demangled language symbol, or NULL. |
9a3d7dfd AF |
1001 | FIXME: Options are only useful for certain languages and ignored |
1002 | by others, so it would be better to remove them here and have a | |
1777feb0 | 1003 | more flexible demangler for the languages that need it. |
9a3d7dfd AF |
1004 | FIXME: Sometimes the demangler is invoked when we don't know the |
1005 | language, so we can't use this everywhere. */ | |
1006 | char * | |
1007 | language_demangle (const struct language_defn *current_language, | |
1008 | const char *mangled, int options) | |
1009 | { | |
1010 | if (current_language != NULL && current_language->la_demangle) | |
1011 | return current_language->la_demangle (mangled, options); | |
1012 | return NULL; | |
1013 | } | |
1014 | ||
31c27f77 JJ |
1015 | /* Return class name from physname or NULL. */ |
1016 | char * | |
79b97fa8 | 1017 | language_class_name_from_physname (const struct language_defn *lang, |
31c27f77 JJ |
1018 | const char *physname) |
1019 | { | |
79b97fa8 TT |
1020 | if (lang != NULL && lang->la_class_name_from_physname) |
1021 | return lang->la_class_name_from_physname (physname); | |
31c27f77 JJ |
1022 | return NULL; |
1023 | } | |
1024 | ||
41f1b697 DJ |
1025 | /* Return non-zero if TYPE should be passed (and returned) by |
1026 | reference at the language level. */ | |
1027 | int | |
1028 | language_pass_by_reference (struct type *type) | |
1029 | { | |
1030 | return current_language->la_pass_by_reference (type); | |
1031 | } | |
1032 | ||
1033 | /* Return zero; by default, types are passed by value at the language | |
1034 | level. The target ABI may pass or return some structs by reference | |
1035 | independent of this. */ | |
1036 | int | |
1037 | default_pass_by_reference (struct type *type) | |
1038 | { | |
1039 | return 0; | |
1040 | } | |
1041 | ||
9f0a5303 JB |
1042 | /* Return the default string containing the list of characters |
1043 | delimiting words. This is a reasonable default value that | |
1044 | most languages should be able to use. */ | |
1045 | ||
1046 | char * | |
1047 | default_word_break_characters (void) | |
1048 | { | |
1049 | return " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-"; | |
1050 | } | |
f636b87d | 1051 | |
e79af960 JB |
1052 | /* Print the index of array elements using the C99 syntax. */ |
1053 | ||
1054 | void | |
1055 | default_print_array_index (struct value *index_value, struct ui_file *stream, | |
79a45b7d | 1056 | const struct value_print_options *options) |
e79af960 JB |
1057 | { |
1058 | fprintf_filtered (stream, "["); | |
79a45b7d | 1059 | LA_VALUE_PRINT (index_value, stream, options); |
e79af960 JB |
1060 | fprintf_filtered (stream, "] = "); |
1061 | } | |
1062 | ||
ae6a3a4c TJB |
1063 | void |
1064 | default_get_string (struct value *value, gdb_byte **buffer, int *length, | |
96c07c5b | 1065 | struct type **char_type, const char **charset) |
ae6a3a4c TJB |
1066 | { |
1067 | error (_("Getting a string is unsupported in this language.")); | |
1068 | } | |
1069 | ||
c906108c SS |
1070 | /* Define the language that is no language. */ |
1071 | ||
1072 | static int | |
fba45db2 | 1073 | unk_lang_parser (void) |
c906108c SS |
1074 | { |
1075 | return 1; | |
1076 | } | |
1077 | ||
1078 | static void | |
fba45db2 | 1079 | unk_lang_error (char *msg) |
c906108c | 1080 | { |
8a3fe4f8 | 1081 | error (_("Attempted to parse an expression with unknown language")); |
c906108c SS |
1082 | } |
1083 | ||
1084 | static void | |
6c7a06a3 TT |
1085 | unk_lang_emit_char (int c, struct type *type, struct ui_file *stream, |
1086 | int quoter) | |
c906108c | 1087 | { |
3e43a32a MS |
1088 | error (_("internal error - unimplemented " |
1089 | "function unk_lang_emit_char called.")); | |
c906108c SS |
1090 | } |
1091 | ||
1092 | static void | |
6c7a06a3 | 1093 | unk_lang_printchar (int c, struct type *type, struct ui_file *stream) |
c906108c | 1094 | { |
3e43a32a MS |
1095 | error (_("internal error - unimplemented " |
1096 | "function unk_lang_printchar called.")); | |
c906108c SS |
1097 | } |
1098 | ||
1099 | static void | |
6c7a06a3 TT |
1100 | unk_lang_printstr (struct ui_file *stream, struct type *type, |
1101 | const gdb_byte *string, unsigned int length, | |
be759fcf | 1102 | const char *encoding, int force_ellipses, |
79a45b7d | 1103 | const struct value_print_options *options) |
c906108c | 1104 | { |
3e43a32a MS |
1105 | error (_("internal error - unimplemented " |
1106 | "function unk_lang_printstr called.")); | |
c906108c SS |
1107 | } |
1108 | ||
c906108c | 1109 | static void |
25b524e8 JK |
1110 | unk_lang_print_type (struct type *type, const char *varstring, |
1111 | struct ui_file *stream, int show, int level) | |
c906108c | 1112 | { |
3e43a32a MS |
1113 | error (_("internal error - unimplemented " |
1114 | "function unk_lang_print_type called.")); | |
c906108c SS |
1115 | } |
1116 | ||
1117 | static int | |
fc1a4b47 | 1118 | unk_lang_val_print (struct type *type, const gdb_byte *valaddr, |
a2bd3dcd | 1119 | int embedded_offset, CORE_ADDR address, |
79a45b7d | 1120 | struct ui_file *stream, int recurse, |
0e03807e | 1121 | const struct value *val, |
79a45b7d | 1122 | const struct value_print_options *options) |
c906108c | 1123 | { |
3e43a32a MS |
1124 | error (_("internal error - unimplemented " |
1125 | "function unk_lang_val_print called.")); | |
c906108c SS |
1126 | } |
1127 | ||
1128 | static int | |
79a45b7d TT |
1129 | unk_lang_value_print (struct value *val, struct ui_file *stream, |
1130 | const struct value_print_options *options) | |
c906108c | 1131 | { |
3e43a32a MS |
1132 | error (_("internal error - unimplemented " |
1133 | "function unk_lang_value_print called.")); | |
c906108c SS |
1134 | } |
1135 | ||
52f729a7 | 1136 | static CORE_ADDR unk_lang_trampoline (struct frame_info *frame, CORE_ADDR pc) |
f636b87d AF |
1137 | { |
1138 | return 0; | |
1139 | } | |
1140 | ||
9a3d7dfd AF |
1141 | /* Unknown languages just use the cplus demangler. */ |
1142 | static char *unk_lang_demangle (const char *mangled, int options) | |
1143 | { | |
1144 | return cplus_demangle (mangled, options); | |
1145 | } | |
1146 | ||
31c27f77 JJ |
1147 | static char *unk_lang_class_name (const char *mangled) |
1148 | { | |
1149 | return NULL; | |
1150 | } | |
9a3d7dfd | 1151 | |
c5aa993b JM |
1152 | static const struct op_print unk_op_print_tab[] = |
1153 | { | |
1154 | {NULL, OP_NULL, PREC_NULL, 0} | |
c906108c SS |
1155 | }; |
1156 | ||
f290d38e AC |
1157 | static void |
1158 | unknown_language_arch_info (struct gdbarch *gdbarch, | |
1159 | struct language_arch_info *lai) | |
1160 | { | |
1161 | lai->string_char_type = builtin_type (gdbarch)->builtin_char; | |
fbb06eb1 | 1162 | lai->bool_type_default = builtin_type (gdbarch)->builtin_int; |
5a44ea29 | 1163 | lai->primitive_type_vector = GDBARCH_OBSTACK_CALLOC (gdbarch, 1, |
f290d38e AC |
1164 | struct type *); |
1165 | } | |
1166 | ||
c5aa993b JM |
1167 | const struct language_defn unknown_language_defn = |
1168 | { | |
c906108c SS |
1169 | "unknown", |
1170 | language_unknown, | |
c906108c SS |
1171 | range_check_off, |
1172 | type_check_off, | |
63872f9d | 1173 | case_sensitive_on, |
9a044a89 TT |
1174 | array_row_major, |
1175 | macro_expansion_no, | |
5f9769d1 | 1176 | &exp_descriptor_standard, |
c906108c SS |
1177 | unk_lang_parser, |
1178 | unk_lang_error, | |
e85c3284 | 1179 | null_post_parser, |
c906108c SS |
1180 | unk_lang_printchar, /* Print character constant */ |
1181 | unk_lang_printstr, | |
1182 | unk_lang_emit_char, | |
c906108c | 1183 | unk_lang_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 1184 | default_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
1185 | unk_lang_val_print, /* Print a value using appropriate syntax */ |
1186 | unk_lang_value_print, /* Print a top-level value */ | |
f636b87d | 1187 | unk_lang_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 1188 | "this", /* name_of_this */ |
5f9a71c3 | 1189 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 1190 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 1191 | unk_lang_demangle, /* Language specific symbol demangler */ |
3e43a32a MS |
1192 | unk_lang_class_name, /* Language specific |
1193 | class_name_from_physname */ | |
c906108c SS |
1194 | unk_op_print_tab, /* expression operators for printing */ |
1195 | 1, /* c-style arrays */ | |
1196 | 0, /* String lower bound */ | |
6084f43a | 1197 | default_word_break_characters, |
41d27058 | 1198 | default_make_symbol_completion_list, |
f290d38e | 1199 | unknown_language_arch_info, /* la_language_arch_info. */ |
e79af960 | 1200 | default_print_array_index, |
41f1b697 | 1201 | default_pass_by_reference, |
ae6a3a4c | 1202 | default_get_string, |
c906108c SS |
1203 | LANG_MAGIC |
1204 | }; | |
1205 | ||
1777feb0 MS |
1206 | /* These two structs define fake entries for the "local" and "auto" |
1207 | options. */ | |
c5aa993b JM |
1208 | const struct language_defn auto_language_defn = |
1209 | { | |
c906108c SS |
1210 | "auto", |
1211 | language_auto, | |
c906108c SS |
1212 | range_check_off, |
1213 | type_check_off, | |
63872f9d | 1214 | case_sensitive_on, |
9a044a89 TT |
1215 | array_row_major, |
1216 | macro_expansion_no, | |
5f9769d1 | 1217 | &exp_descriptor_standard, |
c906108c SS |
1218 | unk_lang_parser, |
1219 | unk_lang_error, | |
e85c3284 | 1220 | null_post_parser, |
c906108c SS |
1221 | unk_lang_printchar, /* Print character constant */ |
1222 | unk_lang_printstr, | |
1223 | unk_lang_emit_char, | |
c906108c | 1224 | unk_lang_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 1225 | default_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
1226 | unk_lang_val_print, /* Print a value using appropriate syntax */ |
1227 | unk_lang_value_print, /* Print a top-level value */ | |
f636b87d | 1228 | unk_lang_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 1229 | "this", /* name_of_this */ |
5f9a71c3 | 1230 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 1231 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 1232 | unk_lang_demangle, /* Language specific symbol demangler */ |
3e43a32a MS |
1233 | unk_lang_class_name, /* Language specific |
1234 | class_name_from_physname */ | |
c906108c SS |
1235 | unk_op_print_tab, /* expression operators for printing */ |
1236 | 1, /* c-style arrays */ | |
1237 | 0, /* String lower bound */ | |
6084f43a | 1238 | default_word_break_characters, |
41d27058 | 1239 | default_make_symbol_completion_list, |
f290d38e | 1240 | unknown_language_arch_info, /* la_language_arch_info. */ |
e79af960 | 1241 | default_print_array_index, |
41f1b697 | 1242 | default_pass_by_reference, |
ae6a3a4c | 1243 | default_get_string, |
c906108c SS |
1244 | LANG_MAGIC |
1245 | }; | |
1246 | ||
c5aa993b JM |
1247 | const struct language_defn local_language_defn = |
1248 | { | |
c906108c SS |
1249 | "local", |
1250 | language_auto, | |
c906108c SS |
1251 | range_check_off, |
1252 | type_check_off, | |
63872f9d | 1253 | case_sensitive_on, |
7ca2d3a3 | 1254 | array_row_major, |
9a044a89 | 1255 | macro_expansion_no, |
5f9769d1 | 1256 | &exp_descriptor_standard, |
c906108c SS |
1257 | unk_lang_parser, |
1258 | unk_lang_error, | |
e85c3284 | 1259 | null_post_parser, |
c906108c SS |
1260 | unk_lang_printchar, /* Print character constant */ |
1261 | unk_lang_printstr, | |
1262 | unk_lang_emit_char, | |
c906108c | 1263 | unk_lang_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 1264 | default_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
1265 | unk_lang_val_print, /* Print a value using appropriate syntax */ |
1266 | unk_lang_value_print, /* Print a top-level value */ | |
f636b87d | 1267 | unk_lang_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 1268 | "this", /* name_of_this */ |
5f9a71c3 | 1269 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 1270 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 1271 | unk_lang_demangle, /* Language specific symbol demangler */ |
3e43a32a MS |
1272 | unk_lang_class_name, /* Language specific |
1273 | class_name_from_physname */ | |
c906108c SS |
1274 | unk_op_print_tab, /* expression operators for printing */ |
1275 | 1, /* c-style arrays */ | |
1276 | 0, /* String lower bound */ | |
6084f43a | 1277 | default_word_break_characters, |
41d27058 | 1278 | default_make_symbol_completion_list, |
f290d38e | 1279 | unknown_language_arch_info, /* la_language_arch_info. */ |
e79af960 | 1280 | default_print_array_index, |
41f1b697 | 1281 | default_pass_by_reference, |
ae6a3a4c | 1282 | default_get_string, |
c906108c SS |
1283 | LANG_MAGIC |
1284 | }; | |
1285 | \f | |
f290d38e AC |
1286 | /* Per-architecture language information. */ |
1287 | ||
1288 | static struct gdbarch_data *language_gdbarch_data; | |
1289 | ||
1290 | struct language_gdbarch | |
1291 | { | |
1292 | /* A vector of per-language per-architecture info. Indexed by "enum | |
1293 | language". */ | |
1294 | struct language_arch_info arch_info[nr_languages]; | |
1295 | }; | |
1296 | ||
1297 | static void * | |
1298 | language_gdbarch_post_init (struct gdbarch *gdbarch) | |
1299 | { | |
1300 | struct language_gdbarch *l; | |
1301 | int i; | |
1302 | ||
1303 | l = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct language_gdbarch); | |
1285b746 | 1304 | for (i = 0; i < languages_size; i++) |
f290d38e AC |
1305 | { |
1306 | if (languages[i] != NULL | |
1307 | && languages[i]->la_language_arch_info != NULL) | |
1308 | languages[i]->la_language_arch_info | |
1309 | (gdbarch, l->arch_info + languages[i]->la_language); | |
1310 | } | |
1311 | return l; | |
1312 | } | |
1313 | ||
1314 | struct type * | |
1315 | language_string_char_type (const struct language_defn *la, | |
1316 | struct gdbarch *gdbarch) | |
1317 | { | |
1318 | struct language_gdbarch *ld = gdbarch_data (gdbarch, | |
1319 | language_gdbarch_data); | |
e0881a8e | 1320 | |
aba2dd37 | 1321 | return ld->arch_info[la->la_language].string_char_type; |
f290d38e AC |
1322 | } |
1323 | ||
fbb06eb1 UW |
1324 | struct type * |
1325 | language_bool_type (const struct language_defn *la, | |
1326 | struct gdbarch *gdbarch) | |
1327 | { | |
1328 | struct language_gdbarch *ld = gdbarch_data (gdbarch, | |
1329 | language_gdbarch_data); | |
1330 | ||
1331 | if (ld->arch_info[la->la_language].bool_type_symbol) | |
1332 | { | |
1333 | struct symbol *sym; | |
e0881a8e | 1334 | |
fbb06eb1 UW |
1335 | sym = lookup_symbol (ld->arch_info[la->la_language].bool_type_symbol, |
1336 | NULL, VAR_DOMAIN, NULL); | |
1337 | if (sym) | |
1338 | { | |
1339 | struct type *type = SYMBOL_TYPE (sym); | |
e0881a8e | 1340 | |
fbb06eb1 UW |
1341 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) |
1342 | return type; | |
1343 | } | |
1344 | } | |
1345 | ||
1346 | return ld->arch_info[la->la_language].bool_type_default; | |
1347 | } | |
1348 | ||
f290d38e | 1349 | struct type * |
5a44ea29 | 1350 | language_lookup_primitive_type_by_name (const struct language_defn *la, |
f290d38e AC |
1351 | struct gdbarch *gdbarch, |
1352 | const char *name) | |
1353 | { | |
1354 | struct language_gdbarch *ld = gdbarch_data (gdbarch, | |
1355 | language_gdbarch_data); | |
aba2dd37 | 1356 | struct type *const *p; |
e0881a8e | 1357 | |
aba2dd37 UW |
1358 | for (p = ld->arch_info[la->la_language].primitive_type_vector; |
1359 | (*p) != NULL; | |
1360 | p++) | |
f290d38e | 1361 | { |
aba2dd37 UW |
1362 | if (strcmp (TYPE_NAME (*p), name) == 0) |
1363 | return (*p); | |
f290d38e AC |
1364 | } |
1365 | return (NULL); | |
1366 | } | |
1367 | ||
1777feb0 | 1368 | /* Initialize the language routines. */ |
c906108c SS |
1369 | |
1370 | void | |
fba45db2 | 1371 | _initialize_language (void) |
c906108c | 1372 | { |
b84aa90a PA |
1373 | static const char *type_or_range_names[] |
1374 | = { "on", "off", "warn", "auto", NULL }; | |
1375 | ||
1376 | static const char *case_sensitive_names[] | |
1377 | = { "on", "off", "auto", NULL }; | |
c5aa993b | 1378 | |
f290d38e AC |
1379 | language_gdbarch_data |
1380 | = gdbarch_data_register_post_init (language_gdbarch_post_init); | |
1381 | ||
1777feb0 | 1382 | /* GDB commands for language specific stuff. */ |
c5aa993b | 1383 | |
c5aa993b | 1384 | add_prefix_cmd ("check", no_class, set_check, |
1bedd215 | 1385 | _("Set the status of the type/range checker."), |
c5aa993b JM |
1386 | &setchecklist, "set check ", 0, &setlist); |
1387 | add_alias_cmd ("c", "check", no_class, 1, &setlist); | |
1388 | add_alias_cmd ("ch", "check", no_class, 1, &setlist); | |
1389 | ||
1390 | add_prefix_cmd ("check", no_class, show_check, | |
1bedd215 | 1391 | _("Show the status of the type/range checker."), |
c5aa993b JM |
1392 | &showchecklist, "show check ", 0, &showlist); |
1393 | add_alias_cmd ("c", "check", no_class, 1, &showlist); | |
1394 | add_alias_cmd ("ch", "check", no_class, 1, &showlist); | |
1395 | ||
3e43a32a MS |
1396 | add_setshow_enum_cmd ("type", class_support, type_or_range_names, &type, |
1397 | _("Set type checking. (on/warn/off/auto)"), | |
1398 | _("Show type checking. (on/warn/off/auto)"), | |
1399 | NULL, set_type_command, | |
b84aa90a PA |
1400 | show_type_command, |
1401 | &setchecklist, &showchecklist); | |
5efd5804 | 1402 | |
b84aa90a | 1403 | add_setshow_enum_cmd ("range", class_support, type_or_range_names, |
3e43a32a MS |
1404 | &range, |
1405 | _("Set range checking. (on/warn/off/auto)"), | |
1406 | _("Show range checking. (on/warn/off/auto)"), | |
1407 | NULL, set_range_command, | |
b84aa90a PA |
1408 | show_range_command, |
1409 | &setchecklist, &showchecklist); | |
1410 | ||
1411 | add_setshow_enum_cmd ("case-sensitive", class_support, case_sensitive_names, | |
1412 | &case_sensitive, _("\ | |
4d28ad1e AC |
1413 | Set case sensitivity in name search. (on/off/auto)"), _("\ |
1414 | Show case sensitivity in name search. (on/off/auto)"), _("\ | |
1415 | For Fortran the default is off; for other languages the default is on."), | |
b84aa90a PA |
1416 | set_case_command, |
1417 | show_case_command, | |
1418 | &setlist, &showlist); | |
63872f9d | 1419 | |
c5aa993b | 1420 | add_language (&auto_language_defn); |
b84aa90a PA |
1421 | add_language (&local_language_defn); |
1422 | add_language (&unknown_language_defn); | |
c5aa993b | 1423 | |
1b36a34b JK |
1424 | language = xstrdup ("auto"); |
1425 | type = xstrdup ("auto"); | |
1426 | range = xstrdup ("auto"); | |
1427 | case_sensitive = xstrdup ("auto"); | |
63872f9d | 1428 | |
1777feb0 | 1429 | /* Have the above take effect. */ |
63872f9d | 1430 | set_language (language_auto); |
c906108c | 1431 | } |