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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, |
0fb0cc75 | 4 | 2002, 2003, 2004, 2005, 2007, 2008, 2009 Free Software Foundation, Inc. |
1bac305b | 5 | |
c906108c SS |
6 | Contributed by the Department of Computer Science at the State University |
7 | of New York at Buffalo. | |
8 | ||
c5aa993b | 9 | This file is part of GDB. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is free software; you can redistribute it and/or modify |
12 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 13 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 14 | (at your option) any later version. |
c906108c | 15 | |
c5aa993b JM |
16 | This program is distributed in the hope that it will be useful, |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
c906108c | 20 | |
c5aa993b | 21 | You should have received a copy of the GNU General Public License |
a9762ec7 | 22 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
23 | |
24 | /* This file contains functions that return things that are specific | |
25 | to languages. Each function should examine current_language if necessary, | |
26 | and return the appropriate result. */ | |
27 | ||
28 | /* FIXME: Most of these would be better organized as macros which | |
29 | return data out of a "language-specific" struct pointer that is set | |
30 | whenever the working language changes. That would be a lot faster. */ | |
31 | ||
32 | #include "defs.h" | |
33 | #include <ctype.h> | |
34 | #include "gdb_string.h" | |
35 | ||
36 | #include "symtab.h" | |
37 | #include "gdbtypes.h" | |
38 | #include "value.h" | |
39 | #include "gdbcmd.h" | |
c906108c SS |
40 | #include "expression.h" |
41 | #include "language.h" | |
42 | #include "target.h" | |
43 | #include "parser-defs.h" | |
8caabe69 | 44 | #include "jv-lang.h" |
9a3d7dfd | 45 | #include "demangle.h" |
8b60591b | 46 | #include "symfile.h" |
c906108c | 47 | |
a14ed312 | 48 | extern void _initialize_language (void); |
392a587b | 49 | |
a14ed312 | 50 | static void unk_lang_error (char *); |
c906108c | 51 | |
a14ed312 | 52 | static int unk_lang_parser (void); |
c906108c | 53 | |
a14ed312 | 54 | static void show_check (char *, int); |
c906108c | 55 | |
a14ed312 | 56 | static void set_check (char *, int); |
c906108c | 57 | |
63872f9d | 58 | static void set_type_range_case (void); |
c906108c | 59 | |
6c7a06a3 TT |
60 | static void unk_lang_emit_char (int c, struct type *type, |
61 | struct ui_file *stream, int quoter); | |
c906108c | 62 | |
6c7a06a3 TT |
63 | static void unk_lang_printchar (int c, struct type *type, |
64 | struct ui_file *stream); | |
c906108c | 65 | |
d9fcf2fb JM |
66 | static void unk_lang_print_type (struct type *, char *, struct ui_file *, |
67 | int, int); | |
c906108c | 68 | |
79a45b7d TT |
69 | static int unk_lang_value_print (struct value *, struct ui_file *, |
70 | const struct value_print_options *); | |
c906108c | 71 | |
52f729a7 | 72 | static CORE_ADDR unk_lang_trampoline (struct frame_info *, CORE_ADDR pc); |
f636b87d | 73 | |
c906108c SS |
74 | /* Forward declaration */ |
75 | extern const struct language_defn unknown_language_defn; | |
c5aa993b | 76 | |
c906108c | 77 | /* The current (default at startup) state of type and range checking. |
c5aa993b JM |
78 | (If the modes are set to "auto", though, these are changed based |
79 | on the default language at startup, and then again based on the | |
80 | language of the first source file. */ | |
c906108c SS |
81 | |
82 | enum range_mode range_mode = range_mode_auto; | |
83 | enum range_check range_check = range_check_off; | |
84 | enum type_mode type_mode = type_mode_auto; | |
85 | enum type_check type_check = type_check_off; | |
63872f9d JG |
86 | enum case_mode case_mode = case_mode_auto; |
87 | enum case_sensitivity case_sensitivity = case_sensitive_on; | |
c906108c SS |
88 | |
89 | /* The current language and language_mode (see language.h) */ | |
90 | ||
91 | const struct language_defn *current_language = &unknown_language_defn; | |
92 | enum language_mode language_mode = language_mode_auto; | |
93 | ||
94 | /* The language that the user expects to be typing in (the language | |
95 | of main(), or the last language we notified them about, or C). */ | |
96 | ||
97 | const struct language_defn *expected_language; | |
98 | ||
99 | /* The list of supported languages. The list itself is malloc'd. */ | |
100 | ||
101 | static const struct language_defn **languages; | |
102 | static unsigned languages_size; | |
103 | static unsigned languages_allocsize; | |
104 | #define DEFAULT_ALLOCSIZE 4 | |
105 | ||
b84aa90a PA |
106 | /* The current values of the "set language/type/range" enum |
107 | commands. */ | |
108 | static const char *language; | |
109 | static const char *type; | |
110 | static const char *range; | |
111 | static const char *case_sensitive; | |
c906108c SS |
112 | |
113 | /* Warning issued when current_language and the language of the current | |
114 | frame do not match. */ | |
115 | char lang_frame_mismatch_warn[] = | |
c5aa993b | 116 | "Warning: the current language does not match this frame."; |
c906108c SS |
117 | \f |
118 | /* This page contains the functions corresponding to GDB commands | |
119 | and their helpers. */ | |
120 | ||
121 | /* Show command. Display a warning if the language set | |
122 | does not match the frame. */ | |
123 | static void | |
4d28ad1e AC |
124 | show_language_command (struct ui_file *file, int from_tty, |
125 | struct cmd_list_element *c, const char *value) | |
c906108c | 126 | { |
c5aa993b | 127 | enum language flang; /* The language of the current frame */ |
c906108c | 128 | |
b84aa90a PA |
129 | if (language_mode == language_mode_auto) |
130 | fprintf_filtered (gdb_stdout, | |
131 | _("The current source language is " | |
132 | "\"auto; currently %s\".\n"), | |
133 | current_language->la_name); | |
134 | else | |
135 | fprintf_filtered (gdb_stdout, _("The current source language is \"%s\".\n"), | |
136 | current_language->la_name); | |
137 | ||
c5aa993b JM |
138 | flang = get_frame_language (); |
139 | if (flang != language_unknown && | |
140 | language_mode == language_mode_manual && | |
141 | current_language->la_language != flang) | |
142 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
c906108c SS |
143 | } |
144 | ||
145 | /* Set command. Change the current working language. */ | |
146 | static void | |
4d28ad1e | 147 | set_language_command (char *ignore, int from_tty, struct cmd_list_element *c) |
c906108c | 148 | { |
5efd5804 | 149 | int i; |
c906108c | 150 | enum language flang; |
c906108c SS |
151 | |
152 | /* Search the list of languages for a match. */ | |
c5aa993b JM |
153 | for (i = 0; i < languages_size; i++) |
154 | { | |
6314a349 | 155 | if (strcmp (languages[i]->la_name, language) == 0) |
c5aa993b JM |
156 | { |
157 | /* Found it! Go into manual mode, and use this language. */ | |
158 | if (languages[i]->la_language == language_auto) | |
159 | { | |
8b60591b JB |
160 | /* Enter auto mode. Set to the current frame's language, if |
161 | known, or fallback to the initial language. */ | |
c5aa993b JM |
162 | language_mode = language_mode_auto; |
163 | flang = get_frame_language (); | |
164 | if (flang != language_unknown) | |
165 | set_language (flang); | |
8b60591b JB |
166 | else |
167 | set_initial_language (); | |
c5aa993b JM |
168 | expected_language = current_language; |
169 | return; | |
170 | } | |
171 | else | |
172 | { | |
173 | /* Enter manual mode. Set the specified language. */ | |
174 | language_mode = language_mode_manual; | |
175 | current_language = languages[i]; | |
63872f9d | 176 | set_type_range_case (); |
c5aa993b JM |
177 | expected_language = current_language; |
178 | return; | |
179 | } | |
180 | } | |
c906108c | 181 | } |
c906108c | 182 | |
b84aa90a PA |
183 | internal_error (__FILE__, __LINE__, |
184 | "Couldn't find language `%s' in known languages list.", | |
185 | language); | |
c906108c SS |
186 | } |
187 | ||
188 | /* Show command. Display a warning if the type setting does | |
189 | not match the current language. */ | |
190 | static void | |
4d28ad1e AC |
191 | show_type_command (struct ui_file *file, int from_tty, |
192 | struct cmd_list_element *c, const char *value) | |
c906108c | 193 | { |
b84aa90a PA |
194 | if (type_mode == type_mode_auto) |
195 | { | |
196 | char *tmp = NULL; | |
197 | ||
198 | switch (type_check) | |
199 | { | |
200 | case type_check_on: | |
201 | tmp = "on"; | |
202 | break; | |
203 | case type_check_off: | |
204 | tmp = "off"; | |
205 | break; | |
206 | case type_check_warn: | |
207 | tmp = "warn"; | |
208 | break; | |
209 | default: | |
210 | internal_error (__FILE__, __LINE__, | |
211 | "Unrecognized type check setting."); | |
212 | } | |
213 | ||
214 | fprintf_filtered (gdb_stdout, | |
215 | _("Type checking is \"auto; currently %s\".\n"), | |
216 | tmp); | |
217 | } | |
218 | else | |
219 | fprintf_filtered (gdb_stdout, _("Type checking is \"%s\".\n"), | |
220 | value); | |
221 | ||
222 | if (type_check != current_language->la_type_check) | |
223 | warning (_("the current type check setting" | |
224 | " does not match the language.\n")); | |
c906108c SS |
225 | } |
226 | ||
227 | /* Set command. Change the setting for type checking. */ | |
228 | static void | |
4d28ad1e | 229 | set_type_command (char *ignore, int from_tty, struct cmd_list_element *c) |
c906108c | 230 | { |
6314a349 | 231 | if (strcmp (type, "on") == 0) |
c5aa993b | 232 | { |
c906108c SS |
233 | type_check = type_check_on; |
234 | type_mode = type_mode_manual; | |
c5aa993b | 235 | } |
6314a349 | 236 | else if (strcmp (type, "warn") == 0) |
c5aa993b | 237 | { |
c906108c SS |
238 | type_check = type_check_warn; |
239 | type_mode = type_mode_manual; | |
c5aa993b | 240 | } |
6314a349 | 241 | else if (strcmp (type, "off") == 0) |
c5aa993b | 242 | { |
c906108c SS |
243 | type_check = type_check_off; |
244 | type_mode = type_mode_manual; | |
c5aa993b | 245 | } |
6314a349 | 246 | else if (strcmp (type, "auto") == 0) |
c5aa993b | 247 | { |
c906108c | 248 | type_mode = type_mode_auto; |
63872f9d | 249 | set_type_range_case (); |
c906108c | 250 | return; |
c5aa993b | 251 | } |
c4093a6a | 252 | else |
b84aa90a PA |
253 | internal_error (__FILE__, __LINE__, |
254 | _("Unrecognized type check setting: \"%s\""), type); | |
255 | ||
256 | if (type_check != current_language->la_type_check) | |
257 | warning (_("the current type check setting" | |
258 | " does not match the language.\n")); | |
c906108c SS |
259 | } |
260 | ||
261 | /* Show command. Display a warning if the range setting does | |
262 | not match the current language. */ | |
263 | static void | |
4d28ad1e AC |
264 | show_range_command (struct ui_file *file, int from_tty, |
265 | struct cmd_list_element *c, const char *value) | |
c906108c | 266 | { |
b84aa90a PA |
267 | if (range_mode == range_mode_auto) |
268 | { | |
269 | char *tmp; | |
270 | ||
271 | switch (range_check) | |
272 | { | |
273 | case range_check_on: | |
274 | tmp = "on"; | |
275 | break; | |
276 | case range_check_off: | |
277 | tmp = "off"; | |
278 | break; | |
279 | case range_check_warn: | |
280 | tmp = "warn"; | |
281 | break; | |
282 | default: | |
283 | internal_error (__FILE__, __LINE__, | |
284 | "Unrecognized range check setting."); | |
285 | } | |
286 | ||
287 | fprintf_filtered (gdb_stdout, | |
288 | _("Range checking is \"auto; currently %s\".\n"), | |
289 | tmp); | |
290 | } | |
291 | else | |
292 | fprintf_filtered (gdb_stdout, _("Range checking is \"%s\".\n"), | |
293 | value); | |
294 | ||
c5aa993b | 295 | if (range_check != current_language->la_range_check) |
b84aa90a PA |
296 | warning (_("the current range check setting " |
297 | "does not match the language.\n")); | |
c906108c SS |
298 | } |
299 | ||
300 | /* Set command. Change the setting for range checking. */ | |
301 | static void | |
4d28ad1e | 302 | set_range_command (char *ignore, int from_tty, struct cmd_list_element *c) |
c906108c | 303 | { |
6314a349 | 304 | if (strcmp (range, "on") == 0) |
c5aa993b | 305 | { |
c906108c SS |
306 | range_check = range_check_on; |
307 | range_mode = range_mode_manual; | |
c5aa993b | 308 | } |
6314a349 | 309 | else if (strcmp (range, "warn") == 0) |
c5aa993b | 310 | { |
c906108c SS |
311 | range_check = range_check_warn; |
312 | range_mode = range_mode_manual; | |
c5aa993b | 313 | } |
6314a349 | 314 | else if (strcmp (range, "off") == 0) |
c5aa993b | 315 | { |
c906108c SS |
316 | range_check = range_check_off; |
317 | range_mode = range_mode_manual; | |
c5aa993b | 318 | } |
6314a349 | 319 | else if (strcmp (range, "auto") == 0) |
c5aa993b | 320 | { |
c906108c | 321 | range_mode = range_mode_auto; |
63872f9d | 322 | set_type_range_case (); |
c906108c | 323 | return; |
c5aa993b | 324 | } |
c4093a6a JM |
325 | else |
326 | { | |
b84aa90a PA |
327 | internal_error (__FILE__, __LINE__, |
328 | _("Unrecognized range check setting: \"%s\""), range); | |
c4093a6a | 329 | } |
b84aa90a PA |
330 | if (range_check != current_language->la_range_check) |
331 | warning (_("the current range check setting " | |
332 | "does not match the language.\n")); | |
c906108c SS |
333 | } |
334 | ||
63872f9d JG |
335 | /* Show command. Display a warning if the case sensitivity setting does |
336 | not match the current language. */ | |
337 | static void | |
4d28ad1e AC |
338 | show_case_command (struct ui_file *file, int from_tty, |
339 | struct cmd_list_element *c, const char *value) | |
63872f9d | 340 | { |
b84aa90a PA |
341 | if (case_mode == case_mode_auto) |
342 | { | |
343 | char *tmp = NULL; | |
344 | ||
345 | switch (case_sensitivity) | |
346 | { | |
347 | case case_sensitive_on: | |
348 | tmp = "on"; | |
349 | break; | |
350 | case case_sensitive_off: | |
351 | tmp = "off"; | |
352 | break; | |
353 | default: | |
354 | internal_error (__FILE__, __LINE__, | |
355 | "Unrecognized case-sensitive setting."); | |
356 | } | |
357 | ||
358 | fprintf_filtered (gdb_stdout, | |
359 | _("Case sensitivity in " | |
360 | "name search is \"auto; currently %s\".\n"), | |
361 | tmp); | |
362 | } | |
363 | else | |
364 | fprintf_filtered (gdb_stdout, _("Case sensitivity in name search is \"%s\".\n"), | |
365 | value); | |
366 | ||
4d28ad1e | 367 | if (case_sensitivity != current_language->la_case_sensitivity) |
b84aa90a PA |
368 | warning (_("the current case sensitivity setting does not match " |
369 | "the language.\n")); | |
63872f9d JG |
370 | } |
371 | ||
591e78ff MK |
372 | /* Set command. Change the setting for case sensitivity. */ |
373 | ||
63872f9d | 374 | static void |
4d28ad1e | 375 | set_case_command (char *ignore, int from_tty, struct cmd_list_element *c) |
63872f9d | 376 | { |
591e78ff MK |
377 | if (strcmp (case_sensitive, "on") == 0) |
378 | { | |
379 | case_sensitivity = case_sensitive_on; | |
380 | case_mode = case_mode_manual; | |
381 | } | |
382 | else if (strcmp (case_sensitive, "off") == 0) | |
383 | { | |
384 | case_sensitivity = case_sensitive_off; | |
385 | case_mode = case_mode_manual; | |
386 | } | |
387 | else if (strcmp (case_sensitive, "auto") == 0) | |
388 | { | |
389 | case_mode = case_mode_auto; | |
390 | set_type_range_case (); | |
591e78ff MK |
391 | return; |
392 | } | |
63872f9d | 393 | else |
591e78ff | 394 | { |
b84aa90a PA |
395 | internal_error (__FILE__, __LINE__, |
396 | "Unrecognized case-sensitive setting: \"%s\"", | |
397 | case_sensitive); | |
591e78ff | 398 | } |
b84aa90a PA |
399 | |
400 | if (case_sensitivity != current_language->la_case_sensitivity) | |
401 | warning (_("the current case sensitivity setting does not match " | |
402 | "the language.\n")); | |
63872f9d JG |
403 | } |
404 | ||
405 | /* Set the status of range and type checking and case sensitivity based on | |
c906108c SS |
406 | the current modes and the current language. |
407 | If SHOW is non-zero, then print out the current language, | |
408 | type and range checking status. */ | |
409 | static void | |
63872f9d | 410 | set_type_range_case (void) |
c906108c | 411 | { |
c906108c SS |
412 | if (range_mode == range_mode_auto) |
413 | range_check = current_language->la_range_check; | |
414 | ||
415 | if (type_mode == type_mode_auto) | |
416 | type_check = current_language->la_type_check; | |
417 | ||
63872f9d JG |
418 | if (case_mode == case_mode_auto) |
419 | case_sensitivity = current_language->la_case_sensitivity; | |
c906108c SS |
420 | } |
421 | ||
422 | /* Set current language to (enum language) LANG. Returns previous language. */ | |
423 | ||
424 | enum language | |
fba45db2 | 425 | set_language (enum language lang) |
c906108c SS |
426 | { |
427 | int i; | |
428 | enum language prev_language; | |
429 | ||
430 | prev_language = current_language->la_language; | |
431 | ||
c5aa993b JM |
432 | for (i = 0; i < languages_size; i++) |
433 | { | |
434 | if (languages[i]->la_language == lang) | |
435 | { | |
436 | current_language = languages[i]; | |
63872f9d | 437 | set_type_range_case (); |
c5aa993b JM |
438 | break; |
439 | } | |
c906108c | 440 | } |
c906108c SS |
441 | |
442 | return prev_language; | |
443 | } | |
444 | \f | |
c906108c SS |
445 | |
446 | /* Print out the current language settings: language, range and | |
447 | type checking. If QUIETLY, print only what has changed. */ | |
448 | ||
449 | void | |
fba45db2 | 450 | language_info (int quietly) |
c906108c SS |
451 | { |
452 | if (quietly && expected_language == current_language) | |
453 | return; | |
454 | ||
455 | expected_language = current_language; | |
a3f17187 | 456 | printf_unfiltered (_("Current language: %s\n"), language); |
4d28ad1e | 457 | show_language_command (NULL, 1, NULL, NULL); |
c906108c SS |
458 | |
459 | if (!quietly) | |
460 | { | |
a3f17187 | 461 | printf_unfiltered (_("Type checking: %s\n"), type); |
4d28ad1e | 462 | show_type_command (NULL, 1, NULL, NULL); |
a3f17187 | 463 | printf_unfiltered (_("Range checking: %s\n"), range); |
4d28ad1e | 464 | show_range_command (NULL, 1, NULL, NULL); |
a3f17187 | 465 | printf_unfiltered (_("Case sensitivity: %s\n"), case_sensitive); |
4d28ad1e | 466 | show_case_command (NULL, 1, NULL, NULL); |
c906108c SS |
467 | } |
468 | } | |
469 | \f | |
470 | /* Return the result of a binary operation. */ | |
471 | ||
c5aa993b | 472 | #if 0 /* Currently unused */ |
c906108c SS |
473 | |
474 | struct type * | |
3d6d86c6 | 475 | binop_result_type (struct value *v1, struct value *v2) |
c906108c | 476 | { |
c5aa993b JM |
477 | int size, uns; |
478 | struct type *t1 = check_typedef (VALUE_TYPE (v1)); | |
479 | struct type *t2 = check_typedef (VALUE_TYPE (v2)); | |
480 | ||
481 | int l1 = TYPE_LENGTH (t1); | |
482 | int l2 = TYPE_LENGTH (t2); | |
483 | ||
484 | switch (current_language->la_language) | |
485 | { | |
486 | case language_c: | |
487 | case language_cplus: | |
eb392fbf | 488 | case language_objc: |
c5aa993b JM |
489 | if (TYPE_CODE (t1) == TYPE_CODE_FLT) |
490 | return TYPE_CODE (t2) == TYPE_CODE_FLT && l2 > l1 ? | |
491 | VALUE_TYPE (v2) : VALUE_TYPE (v1); | |
492 | else if (TYPE_CODE (t2) == TYPE_CODE_FLT) | |
493 | return TYPE_CODE (t1) == TYPE_CODE_FLT && l1 > l2 ? | |
494 | VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
495 | else if (TYPE_UNSIGNED (t1) && l1 > l2) | |
496 | return VALUE_TYPE (v1); | |
497 | else if (TYPE_UNSIGNED (t2) && l2 > l1) | |
498 | return VALUE_TYPE (v2); | |
499 | else /* Both are signed. Result is the longer type */ | |
500 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
c906108c | 501 | break; |
c5aa993b | 502 | case language_m2: |
c906108c | 503 | /* If we are doing type-checking, l1 should equal l2, so this is |
c5aa993b JM |
504 | not needed. */ |
505 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
c906108c | 506 | break; |
c5aa993b | 507 | } |
e2e0b3e5 | 508 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c5aa993b | 509 | return (struct type *) 0; /* For lint */ |
c906108c SS |
510 | } |
511 | ||
c5aa993b | 512 | #endif /* 0 */ |
c906108c SS |
513 | #if 0 |
514 | /* This page contains functions that are used in type/range checking. | |
515 | They all return zero if the type/range check fails. | |
516 | ||
517 | It is hoped that these will make extending GDB to parse different | |
518 | languages a little easier. These are primarily used in eval.c when | |
519 | evaluating expressions and making sure that their types are correct. | |
520 | Instead of having a mess of conjucted/disjuncted expressions in an "if", | |
521 | the ideas of type can be wrapped up in the following functions. | |
522 | ||
523 | Note that some of them are not currently dependent upon which language | |
524 | is currently being parsed. For example, floats are the same in | |
525 | C and Modula-2 (ie. the only floating point type has TYPE_CODE of | |
526 | TYPE_CODE_FLT), while booleans are different. */ | |
527 | ||
528 | /* Returns non-zero if its argument is a simple type. This is the same for | |
529 | both Modula-2 and for C. In the C case, TYPE_CODE_CHAR will never occur, | |
530 | and thus will never cause the failure of the test. */ | |
531 | int | |
fba45db2 | 532 | simple_type (struct type *type) |
c906108c SS |
533 | { |
534 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
535 | switch (TYPE_CODE (type)) |
536 | { | |
537 | case TYPE_CODE_INT: | |
538 | case TYPE_CODE_CHAR: | |
539 | case TYPE_CODE_ENUM: | |
540 | case TYPE_CODE_FLT: | |
541 | case TYPE_CODE_RANGE: | |
542 | case TYPE_CODE_BOOL: | |
543 | return 1; | |
c906108c | 544 | |
c5aa993b JM |
545 | default: |
546 | return 0; | |
547 | } | |
c906108c SS |
548 | } |
549 | ||
550 | /* Returns non-zero if its argument is of an ordered type. | |
551 | An ordered type is one in which the elements can be tested for the | |
552 | properties of "greater than", "less than", etc, or for which the | |
553 | operations "increment" or "decrement" make sense. */ | |
554 | int | |
fba45db2 | 555 | ordered_type (struct type *type) |
c906108c SS |
556 | { |
557 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
558 | switch (TYPE_CODE (type)) |
559 | { | |
560 | case TYPE_CODE_INT: | |
561 | case TYPE_CODE_CHAR: | |
562 | case TYPE_CODE_ENUM: | |
563 | case TYPE_CODE_FLT: | |
564 | case TYPE_CODE_RANGE: | |
565 | return 1; | |
c906108c | 566 | |
c5aa993b JM |
567 | default: |
568 | return 0; | |
569 | } | |
c906108c SS |
570 | } |
571 | ||
572 | /* Returns non-zero if the two types are the same */ | |
573 | int | |
fba45db2 | 574 | same_type (struct type *arg1, struct type *arg2) |
c906108c SS |
575 | { |
576 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
577 | if (structured_type (arg1) ? !structured_type (arg2) : structured_type (arg2)) |
578 | /* One is structured and one isn't */ | |
579 | return 0; | |
580 | else if (structured_type (arg1) && structured_type (arg2)) | |
581 | return arg1 == arg2; | |
582 | else if (numeric_type (arg1) && numeric_type (arg2)) | |
583 | return (TYPE_CODE (arg2) == TYPE_CODE (arg1)) && | |
584 | (TYPE_UNSIGNED (arg1) == TYPE_UNSIGNED (arg2)) | |
585 | ? 1 : 0; | |
586 | else | |
587 | return arg1 == arg2; | |
c906108c SS |
588 | } |
589 | ||
590 | /* Returns non-zero if the type is integral */ | |
591 | int | |
fba45db2 | 592 | integral_type (struct type *type) |
c906108c SS |
593 | { |
594 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
595 | switch (current_language->la_language) |
596 | { | |
597 | case language_c: | |
598 | case language_cplus: | |
eb392fbf | 599 | case language_objc: |
c5aa993b JM |
600 | return (TYPE_CODE (type) != TYPE_CODE_INT) && |
601 | (TYPE_CODE (type) != TYPE_CODE_ENUM) ? 0 : 1; | |
602 | case language_m2: | |
750ba382 | 603 | case language_pascal: |
c5aa993b | 604 | return TYPE_CODE (type) != TYPE_CODE_INT ? 0 : 1; |
c5aa993b | 605 | default: |
8a3fe4f8 | 606 | error (_("Language not supported.")); |
c5aa993b | 607 | } |
c906108c SS |
608 | } |
609 | ||
610 | /* Returns non-zero if the value is numeric */ | |
611 | int | |
fba45db2 | 612 | numeric_type (struct type *type) |
c906108c SS |
613 | { |
614 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
615 | switch (TYPE_CODE (type)) |
616 | { | |
617 | case TYPE_CODE_INT: | |
618 | case TYPE_CODE_FLT: | |
619 | return 1; | |
c906108c | 620 | |
c5aa993b JM |
621 | default: |
622 | return 0; | |
623 | } | |
c906108c SS |
624 | } |
625 | ||
626 | /* Returns non-zero if the value is a character type */ | |
627 | int | |
fba45db2 | 628 | character_type (struct type *type) |
c906108c SS |
629 | { |
630 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
631 | switch (current_language->la_language) |
632 | { | |
c5aa993b | 633 | case language_m2: |
750ba382 | 634 | case language_pascal: |
c5aa993b JM |
635 | return TYPE_CODE (type) != TYPE_CODE_CHAR ? 0 : 1; |
636 | ||
637 | case language_c: | |
638 | case language_cplus: | |
eb392fbf | 639 | case language_objc: |
c5aa993b JM |
640 | return (TYPE_CODE (type) == TYPE_CODE_INT) && |
641 | TYPE_LENGTH (type) == sizeof (char) | |
642 | ? 1 : 0; | |
643 | default: | |
c906108c | 644 | return (0); |
c5aa993b | 645 | } |
c906108c SS |
646 | } |
647 | ||
648 | /* Returns non-zero if the value is a string type */ | |
649 | int | |
fba45db2 | 650 | string_type (struct type *type) |
c906108c SS |
651 | { |
652 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
653 | switch (current_language->la_language) |
654 | { | |
c5aa993b | 655 | case language_m2: |
750ba382 | 656 | case language_pascal: |
c5aa993b JM |
657 | return TYPE_CODE (type) != TYPE_CODE_STRING ? 0 : 1; |
658 | ||
659 | case language_c: | |
660 | case language_cplus: | |
eb392fbf | 661 | case language_objc: |
c906108c SS |
662 | /* C does not have distinct string type. */ |
663 | return (0); | |
c5aa993b | 664 | default: |
c906108c | 665 | return (0); |
c5aa993b | 666 | } |
c906108c SS |
667 | } |
668 | ||
669 | /* Returns non-zero if the value is a boolean type */ | |
670 | int | |
fba45db2 | 671 | boolean_type (struct type *type) |
c906108c SS |
672 | { |
673 | CHECK_TYPEDEF (type); | |
674 | if (TYPE_CODE (type) == TYPE_CODE_BOOL) | |
675 | return 1; | |
c5aa993b | 676 | switch (current_language->la_language) |
c906108c SS |
677 | { |
678 | case language_c: | |
679 | case language_cplus: | |
eb392fbf | 680 | case language_objc: |
db034ac5 | 681 | /* Might be more cleanly handled by having a |
1b831c93 | 682 | TYPE_CODE_INT_NOT_BOOL for (the deleted) CHILL and such |
db034ac5 | 683 | languages, or a TYPE_CODE_INT_OR_BOOL for C. */ |
c906108c SS |
684 | if (TYPE_CODE (type) == TYPE_CODE_INT) |
685 | return 1; | |
c5aa993b | 686 | default: |
c906108c | 687 | break; |
c5aa993b | 688 | } |
c906108c SS |
689 | return 0; |
690 | } | |
691 | ||
692 | /* Returns non-zero if the value is a floating-point type */ | |
693 | int | |
fba45db2 | 694 | float_type (struct type *type) |
c906108c SS |
695 | { |
696 | CHECK_TYPEDEF (type); | |
c5aa993b | 697 | return TYPE_CODE (type) == TYPE_CODE_FLT; |
c906108c | 698 | } |
b97aedf3 | 699 | #endif |
c906108c SS |
700 | |
701 | /* Returns non-zero if the value is a pointer type */ | |
702 | int | |
fba45db2 | 703 | pointer_type (struct type *type) |
c906108c | 704 | { |
c5aa993b JM |
705 | return TYPE_CODE (type) == TYPE_CODE_PTR || |
706 | TYPE_CODE (type) == TYPE_CODE_REF; | |
c906108c SS |
707 | } |
708 | ||
b97aedf3 | 709 | #if 0 |
c906108c SS |
710 | /* Returns non-zero if the value is a structured type */ |
711 | int | |
fba45db2 | 712 | structured_type (struct type *type) |
c906108c SS |
713 | { |
714 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
715 | switch (current_language->la_language) |
716 | { | |
717 | case language_c: | |
718 | case language_cplus: | |
eb392fbf | 719 | case language_objc: |
c5aa993b JM |
720 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || |
721 | (TYPE_CODE (type) == TYPE_CODE_UNION) || | |
722 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
750ba382 PM |
723 | case language_pascal: |
724 | return (TYPE_CODE(type) == TYPE_CODE_STRUCT) || | |
725 | (TYPE_CODE(type) == TYPE_CODE_UNION) || | |
726 | (TYPE_CODE(type) == TYPE_CODE_SET) || | |
727 | (TYPE_CODE(type) == TYPE_CODE_ARRAY); | |
c5aa993b JM |
728 | case language_m2: |
729 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || | |
730 | (TYPE_CODE (type) == TYPE_CODE_SET) || | |
731 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
c5aa993b | 732 | default: |
c906108c | 733 | return (0); |
c5aa993b | 734 | } |
c906108c SS |
735 | } |
736 | #endif | |
737 | \f | |
c906108c SS |
738 | /* This page contains functions that return info about |
739 | (struct value) values used in GDB. */ | |
740 | ||
741 | /* Returns non-zero if the value VAL represents a true value. */ | |
742 | int | |
3d6d86c6 | 743 | value_true (struct value *val) |
c906108c SS |
744 | { |
745 | /* It is possible that we should have some sort of error if a non-boolean | |
746 | value is used in this context. Possibly dependent on some kind of | |
747 | "boolean-checking" option like range checking. But it should probably | |
748 | not depend on the language except insofar as is necessary to identify | |
749 | a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean | |
750 | should be an error, probably). */ | |
751 | return !value_logical_not (val); | |
752 | } | |
753 | \f | |
c906108c SS |
754 | /* This page contains functions for the printing out of |
755 | error messages that occur during type- and range- | |
756 | checking. */ | |
757 | ||
ddfe3c15 AC |
758 | /* These are called when a language fails a type- or range-check. The |
759 | first argument should be a printf()-style format string, and the | |
760 | rest of the arguments should be its arguments. If | |
761 | [type|range]_check is [type|range]_check_on, an error is printed; | |
762 | if [type|range]_check_warn, a warning; otherwise just the | |
763 | message. */ | |
c906108c SS |
764 | |
765 | void | |
ddfe3c15 | 766 | type_error (const char *string,...) |
c906108c | 767 | { |
c5aa993b | 768 | va_list args; |
c5aa993b | 769 | va_start (args, string); |
c906108c | 770 | |
ddfe3c15 AC |
771 | switch (type_check) |
772 | { | |
773 | case type_check_warn: | |
774 | vwarning (string, args); | |
775 | break; | |
776 | case type_check_on: | |
777 | verror (string, args); | |
778 | break; | |
779 | case type_check_off: | |
780 | /* FIXME: cagney/2002-01-30: Should this function print anything | |
781 | when type error is off? */ | |
782 | vfprintf_filtered (gdb_stderr, string, args); | |
783 | fprintf_filtered (gdb_stderr, "\n"); | |
784 | break; | |
785 | default: | |
e2e0b3e5 | 786 | internal_error (__FILE__, __LINE__, _("bad switch")); |
ddfe3c15 | 787 | } |
c5aa993b | 788 | va_end (args); |
c906108c SS |
789 | } |
790 | ||
791 | void | |
ddfe3c15 | 792 | range_error (const char *string,...) |
c906108c | 793 | { |
c5aa993b | 794 | va_list args; |
c5aa993b | 795 | va_start (args, string); |
c906108c | 796 | |
ddfe3c15 AC |
797 | switch (range_check) |
798 | { | |
799 | case range_check_warn: | |
800 | vwarning (string, args); | |
801 | break; | |
802 | case range_check_on: | |
803 | verror (string, args); | |
804 | break; | |
805 | case range_check_off: | |
806 | /* FIXME: cagney/2002-01-30: Should this function print anything | |
807 | when range error is off? */ | |
808 | vfprintf_filtered (gdb_stderr, string, args); | |
809 | fprintf_filtered (gdb_stderr, "\n"); | |
810 | break; | |
811 | default: | |
e2e0b3e5 | 812 | internal_error (__FILE__, __LINE__, _("bad switch")); |
ddfe3c15 | 813 | } |
c5aa993b | 814 | va_end (args); |
c906108c | 815 | } |
c906108c | 816 | \f |
c5aa993b | 817 | |
c906108c SS |
818 | /* This page contains miscellaneous functions */ |
819 | ||
820 | /* Return the language enum for a given language string. */ | |
821 | ||
822 | enum language | |
fba45db2 | 823 | language_enum (char *str) |
c906108c SS |
824 | { |
825 | int i; | |
826 | ||
c5aa993b | 827 | for (i = 0; i < languages_size; i++) |
591e78ff | 828 | if (strcmp (languages[i]->la_name, str) == 0) |
c906108c SS |
829 | return languages[i]->la_language; |
830 | ||
831 | return language_unknown; | |
832 | } | |
833 | ||
834 | /* Return the language struct for a given language enum. */ | |
835 | ||
836 | const struct language_defn * | |
fba45db2 | 837 | language_def (enum language lang) |
c906108c SS |
838 | { |
839 | int i; | |
840 | ||
c5aa993b JM |
841 | for (i = 0; i < languages_size; i++) |
842 | { | |
843 | if (languages[i]->la_language == lang) | |
844 | { | |
845 | return languages[i]; | |
846 | } | |
c906108c | 847 | } |
c906108c SS |
848 | return NULL; |
849 | } | |
850 | ||
851 | /* Return the language as a string */ | |
852 | char * | |
fba45db2 | 853 | language_str (enum language lang) |
c906108c SS |
854 | { |
855 | int i; | |
856 | ||
c5aa993b JM |
857 | for (i = 0; i < languages_size; i++) |
858 | { | |
859 | if (languages[i]->la_language == lang) | |
860 | { | |
861 | return languages[i]->la_name; | |
862 | } | |
c906108c | 863 | } |
c906108c SS |
864 | return "Unknown"; |
865 | } | |
866 | ||
867 | static void | |
fba45db2 | 868 | set_check (char *ignore, int from_tty) |
c906108c | 869 | { |
c5aa993b JM |
870 | printf_unfiltered ( |
871 | "\"set check\" must be followed by the name of a check subcommand.\n"); | |
872 | help_list (setchecklist, "set check ", -1, gdb_stdout); | |
c906108c SS |
873 | } |
874 | ||
875 | static void | |
fba45db2 | 876 | show_check (char *ignore, int from_tty) |
c906108c | 877 | { |
c5aa993b | 878 | cmd_show_list (showchecklist, from_tty, ""); |
c906108c SS |
879 | } |
880 | \f | |
881 | /* Add a language to the set of known languages. */ | |
882 | ||
883 | void | |
fba45db2 | 884 | add_language (const struct language_defn *lang) |
c906108c | 885 | { |
b84aa90a PA |
886 | /* For the "set language" command. */ |
887 | static char **language_names = NULL; | |
888 | /* For the "help set language" command. */ | |
1eefb858 | 889 | char *language_set_doc = NULL; |
b84aa90a PA |
890 | |
891 | int i; | |
892 | struct ui_file *tmp_stream; | |
b84aa90a | 893 | |
c906108c SS |
894 | if (lang->la_magic != LANG_MAGIC) |
895 | { | |
c5aa993b JM |
896 | fprintf_unfiltered (gdb_stderr, "Magic number of %s language struct wrong\n", |
897 | lang->la_name); | |
e2e0b3e5 | 898 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
899 | } |
900 | ||
901 | if (!languages) | |
902 | { | |
903 | languages_allocsize = DEFAULT_ALLOCSIZE; | |
904 | languages = (const struct language_defn **) xmalloc | |
905 | (languages_allocsize * sizeof (*languages)); | |
906 | } | |
907 | if (languages_size >= languages_allocsize) | |
908 | { | |
909 | languages_allocsize *= 2; | |
910 | languages = (const struct language_defn **) xrealloc ((char *) languages, | |
c5aa993b | 911 | languages_allocsize * sizeof (*languages)); |
c906108c SS |
912 | } |
913 | languages[languages_size++] = lang; | |
b84aa90a PA |
914 | |
915 | /* Build the language names array, to be used as enumeration in the | |
916 | set language" enum command. */ | |
917 | language_names = xrealloc (language_names, | |
918 | (languages_size + 1) * sizeof (const char *)); | |
919 | for (i = 0; i < languages_size; ++i) | |
920 | language_names[i] = languages[i]->la_name; | |
921 | language_names[i] = NULL; | |
922 | ||
923 | /* Build the "help set language" docs. */ | |
924 | tmp_stream = mem_fileopen (); | |
925 | ||
926 | fprintf_unfiltered (tmp_stream, _("\ | |
927 | Set the current source language.\n\ | |
928 | The currently understood settings are:\n\n\ | |
929 | local or auto Automatic setting based on source file\n")); | |
930 | ||
931 | for (i = 0; i < languages_size; ++i) | |
932 | { | |
933 | /* Already dealt with these above. */ | |
934 | if (languages[i]->la_language == language_unknown | |
935 | || languages[i]->la_language == language_auto) | |
936 | continue; | |
937 | ||
938 | /* FIXME: i18n: for now assume that the human-readable name | |
939 | is just a capitalization of the internal name. */ | |
940 | fprintf_unfiltered (tmp_stream, "%-16s Use the %c%s language\n", | |
941 | languages[i]->la_name, | |
942 | /* Capitalize first letter of language | |
943 | name. */ | |
944 | toupper (languages[i]->la_name[0]), | |
945 | languages[i]->la_name + 1); | |
946 | } | |
947 | ||
759ef836 | 948 | language_set_doc = ui_file_xstrdup (tmp_stream, NULL); |
b84aa90a PA |
949 | ui_file_delete (tmp_stream); |
950 | ||
951 | add_setshow_enum_cmd ("language", class_support, | |
952 | (const char **) language_names, | |
953 | &language, | |
954 | language_set_doc, _("\ | |
955 | Show the current source language."), NULL, | |
956 | set_language_command, | |
957 | show_language_command, | |
958 | &setlist, &showlist); | |
1eefb858 TT |
959 | |
960 | xfree (language_set_doc); | |
c906108c SS |
961 | } |
962 | ||
f636b87d AF |
963 | /* Iterate through all registered languages looking for and calling |
964 | any non-NULL struct language_defn.skip_trampoline() functions. | |
965 | Return the result from the first that returns non-zero, or 0 if all | |
966 | `fail'. */ | |
967 | CORE_ADDR | |
52f729a7 | 968 | skip_language_trampoline (struct frame_info *frame, CORE_ADDR pc) |
f636b87d AF |
969 | { |
970 | int i; | |
971 | ||
972 | for (i = 0; i < languages_size; i++) | |
973 | { | |
974 | if (languages[i]->skip_trampoline) | |
975 | { | |
52f729a7 | 976 | CORE_ADDR real_pc = (languages[i]->skip_trampoline) (frame, pc); |
f636b87d AF |
977 | if (real_pc) |
978 | return real_pc; | |
979 | } | |
980 | } | |
981 | ||
982 | return 0; | |
983 | } | |
984 | ||
9a3d7dfd AF |
985 | /* Return demangled language symbol, or NULL. |
986 | FIXME: Options are only useful for certain languages and ignored | |
987 | by others, so it would be better to remove them here and have a | |
988 | more flexible demangler for the languages that need it. | |
989 | FIXME: Sometimes the demangler is invoked when we don't know the | |
990 | language, so we can't use this everywhere. */ | |
991 | char * | |
992 | language_demangle (const struct language_defn *current_language, | |
993 | const char *mangled, int options) | |
994 | { | |
995 | if (current_language != NULL && current_language->la_demangle) | |
996 | return current_language->la_demangle (mangled, options); | |
997 | return NULL; | |
998 | } | |
999 | ||
31c27f77 JJ |
1000 | /* Return class name from physname or NULL. */ |
1001 | char * | |
1002 | language_class_name_from_physname (const struct language_defn *current_language, | |
1003 | const char *physname) | |
1004 | { | |
1005 | if (current_language != NULL && current_language->la_class_name_from_physname) | |
1006 | return current_language->la_class_name_from_physname (physname); | |
1007 | return NULL; | |
1008 | } | |
1009 | ||
41f1b697 DJ |
1010 | /* Return non-zero if TYPE should be passed (and returned) by |
1011 | reference at the language level. */ | |
1012 | int | |
1013 | language_pass_by_reference (struct type *type) | |
1014 | { | |
1015 | return current_language->la_pass_by_reference (type); | |
1016 | } | |
1017 | ||
1018 | /* Return zero; by default, types are passed by value at the language | |
1019 | level. The target ABI may pass or return some structs by reference | |
1020 | independent of this. */ | |
1021 | int | |
1022 | default_pass_by_reference (struct type *type) | |
1023 | { | |
1024 | return 0; | |
1025 | } | |
1026 | ||
9f0a5303 JB |
1027 | /* Return the default string containing the list of characters |
1028 | delimiting words. This is a reasonable default value that | |
1029 | most languages should be able to use. */ | |
1030 | ||
1031 | char * | |
1032 | default_word_break_characters (void) | |
1033 | { | |
1034 | return " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-"; | |
1035 | } | |
f636b87d | 1036 | |
e79af960 JB |
1037 | /* Print the index of array elements using the C99 syntax. */ |
1038 | ||
1039 | void | |
1040 | default_print_array_index (struct value *index_value, struct ui_file *stream, | |
79a45b7d | 1041 | const struct value_print_options *options) |
e79af960 JB |
1042 | { |
1043 | fprintf_filtered (stream, "["); | |
79a45b7d | 1044 | LA_VALUE_PRINT (index_value, stream, options); |
e79af960 JB |
1045 | fprintf_filtered (stream, "] = "); |
1046 | } | |
1047 | ||
ae6a3a4c TJB |
1048 | void |
1049 | default_get_string (struct value *value, gdb_byte **buffer, int *length, | |
96c07c5b | 1050 | struct type **char_type, const char **charset) |
ae6a3a4c TJB |
1051 | { |
1052 | error (_("Getting a string is unsupported in this language.")); | |
1053 | } | |
1054 | ||
c906108c SS |
1055 | /* Define the language that is no language. */ |
1056 | ||
1057 | static int | |
fba45db2 | 1058 | unk_lang_parser (void) |
c906108c SS |
1059 | { |
1060 | return 1; | |
1061 | } | |
1062 | ||
1063 | static void | |
fba45db2 | 1064 | unk_lang_error (char *msg) |
c906108c | 1065 | { |
8a3fe4f8 | 1066 | error (_("Attempted to parse an expression with unknown language")); |
c906108c SS |
1067 | } |
1068 | ||
1069 | static void | |
6c7a06a3 TT |
1070 | unk_lang_emit_char (int c, struct type *type, struct ui_file *stream, |
1071 | int quoter) | |
c906108c | 1072 | { |
8a3fe4f8 | 1073 | error (_("internal error - unimplemented function unk_lang_emit_char called.")); |
c906108c SS |
1074 | } |
1075 | ||
1076 | static void | |
6c7a06a3 | 1077 | unk_lang_printchar (int c, struct type *type, struct ui_file *stream) |
c906108c | 1078 | { |
8a3fe4f8 | 1079 | error (_("internal error - unimplemented function unk_lang_printchar called.")); |
c906108c SS |
1080 | } |
1081 | ||
1082 | static void | |
6c7a06a3 TT |
1083 | unk_lang_printstr (struct ui_file *stream, struct type *type, |
1084 | const gdb_byte *string, unsigned int length, | |
1085 | int force_ellipses, | |
79a45b7d | 1086 | const struct value_print_options *options) |
c906108c | 1087 | { |
8a3fe4f8 | 1088 | error (_("internal error - unimplemented function unk_lang_printstr called.")); |
c906108c SS |
1089 | } |
1090 | ||
c906108c | 1091 | static void |
fba45db2 KB |
1092 | unk_lang_print_type (struct type *type, char *varstring, struct ui_file *stream, |
1093 | int show, int level) | |
c906108c | 1094 | { |
8a3fe4f8 | 1095 | error (_("internal error - unimplemented function unk_lang_print_type called.")); |
c906108c SS |
1096 | } |
1097 | ||
1098 | static int | |
fc1a4b47 | 1099 | unk_lang_val_print (struct type *type, const gdb_byte *valaddr, |
a2bd3dcd | 1100 | int embedded_offset, CORE_ADDR address, |
79a45b7d TT |
1101 | struct ui_file *stream, int recurse, |
1102 | const struct value_print_options *options) | |
c906108c | 1103 | { |
8a3fe4f8 | 1104 | error (_("internal error - unimplemented function unk_lang_val_print called.")); |
c906108c SS |
1105 | } |
1106 | ||
1107 | static int | |
79a45b7d TT |
1108 | unk_lang_value_print (struct value *val, struct ui_file *stream, |
1109 | const struct value_print_options *options) | |
c906108c | 1110 | { |
8a3fe4f8 | 1111 | error (_("internal error - unimplemented function unk_lang_value_print called.")); |
c906108c SS |
1112 | } |
1113 | ||
52f729a7 | 1114 | static CORE_ADDR unk_lang_trampoline (struct frame_info *frame, CORE_ADDR pc) |
f636b87d AF |
1115 | { |
1116 | return 0; | |
1117 | } | |
1118 | ||
9a3d7dfd AF |
1119 | /* Unknown languages just use the cplus demangler. */ |
1120 | static char *unk_lang_demangle (const char *mangled, int options) | |
1121 | { | |
1122 | return cplus_demangle (mangled, options); | |
1123 | } | |
1124 | ||
31c27f77 JJ |
1125 | static char *unk_lang_class_name (const char *mangled) |
1126 | { | |
1127 | return NULL; | |
1128 | } | |
9a3d7dfd | 1129 | |
c5aa993b JM |
1130 | static const struct op_print unk_op_print_tab[] = |
1131 | { | |
1132 | {NULL, OP_NULL, PREC_NULL, 0} | |
c906108c SS |
1133 | }; |
1134 | ||
f290d38e AC |
1135 | static void |
1136 | unknown_language_arch_info (struct gdbarch *gdbarch, | |
1137 | struct language_arch_info *lai) | |
1138 | { | |
1139 | lai->string_char_type = builtin_type (gdbarch)->builtin_char; | |
fbb06eb1 | 1140 | lai->bool_type_default = builtin_type (gdbarch)->builtin_int; |
5a44ea29 | 1141 | lai->primitive_type_vector = GDBARCH_OBSTACK_CALLOC (gdbarch, 1, |
f290d38e AC |
1142 | struct type *); |
1143 | } | |
1144 | ||
c5aa993b JM |
1145 | const struct language_defn unknown_language_defn = |
1146 | { | |
c906108c SS |
1147 | "unknown", |
1148 | language_unknown, | |
c906108c SS |
1149 | range_check_off, |
1150 | type_check_off, | |
63872f9d | 1151 | case_sensitive_on, |
9a044a89 TT |
1152 | array_row_major, |
1153 | macro_expansion_no, | |
5f9769d1 | 1154 | &exp_descriptor_standard, |
c906108c SS |
1155 | unk_lang_parser, |
1156 | unk_lang_error, | |
e85c3284 | 1157 | null_post_parser, |
c906108c SS |
1158 | unk_lang_printchar, /* Print character constant */ |
1159 | unk_lang_printstr, | |
1160 | unk_lang_emit_char, | |
c906108c | 1161 | unk_lang_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 1162 | default_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
1163 | unk_lang_val_print, /* Print a value using appropriate syntax */ |
1164 | unk_lang_value_print, /* Print a top-level value */ | |
f636b87d | 1165 | unk_lang_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 1166 | "this", /* name_of_this */ |
5f9a71c3 | 1167 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 1168 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 1169 | unk_lang_demangle, /* Language specific symbol demangler */ |
31c27f77 | 1170 | unk_lang_class_name, /* Language specific class_name_from_physname */ |
c906108c SS |
1171 | unk_op_print_tab, /* expression operators for printing */ |
1172 | 1, /* c-style arrays */ | |
1173 | 0, /* String lower bound */ | |
6084f43a | 1174 | default_word_break_characters, |
41d27058 | 1175 | default_make_symbol_completion_list, |
f290d38e | 1176 | unknown_language_arch_info, /* la_language_arch_info. */ |
e79af960 | 1177 | default_print_array_index, |
41f1b697 | 1178 | default_pass_by_reference, |
ae6a3a4c | 1179 | default_get_string, |
c906108c SS |
1180 | LANG_MAGIC |
1181 | }; | |
1182 | ||
1183 | /* These two structs define fake entries for the "local" and "auto" options. */ | |
c5aa993b JM |
1184 | const struct language_defn auto_language_defn = |
1185 | { | |
c906108c SS |
1186 | "auto", |
1187 | language_auto, | |
c906108c SS |
1188 | range_check_off, |
1189 | type_check_off, | |
63872f9d | 1190 | case_sensitive_on, |
9a044a89 TT |
1191 | array_row_major, |
1192 | macro_expansion_no, | |
5f9769d1 | 1193 | &exp_descriptor_standard, |
c906108c SS |
1194 | unk_lang_parser, |
1195 | unk_lang_error, | |
e85c3284 | 1196 | null_post_parser, |
c906108c SS |
1197 | unk_lang_printchar, /* Print character constant */ |
1198 | unk_lang_printstr, | |
1199 | unk_lang_emit_char, | |
c906108c | 1200 | unk_lang_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 1201 | default_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
1202 | unk_lang_val_print, /* Print a value using appropriate syntax */ |
1203 | unk_lang_value_print, /* Print a top-level value */ | |
f636b87d | 1204 | unk_lang_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 1205 | "this", /* name_of_this */ |
5f9a71c3 | 1206 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 1207 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 1208 | unk_lang_demangle, /* Language specific symbol demangler */ |
31c27f77 | 1209 | unk_lang_class_name, /* Language specific class_name_from_physname */ |
c906108c SS |
1210 | unk_op_print_tab, /* expression operators for printing */ |
1211 | 1, /* c-style arrays */ | |
1212 | 0, /* String lower bound */ | |
6084f43a | 1213 | default_word_break_characters, |
41d27058 | 1214 | default_make_symbol_completion_list, |
f290d38e | 1215 | unknown_language_arch_info, /* la_language_arch_info. */ |
e79af960 | 1216 | default_print_array_index, |
41f1b697 | 1217 | default_pass_by_reference, |
ae6a3a4c | 1218 | default_get_string, |
c906108c SS |
1219 | LANG_MAGIC |
1220 | }; | |
1221 | ||
c5aa993b JM |
1222 | const struct language_defn local_language_defn = |
1223 | { | |
c906108c SS |
1224 | "local", |
1225 | language_auto, | |
c906108c SS |
1226 | range_check_off, |
1227 | type_check_off, | |
63872f9d | 1228 | case_sensitive_on, |
7ca2d3a3 | 1229 | array_row_major, |
9a044a89 | 1230 | macro_expansion_no, |
5f9769d1 | 1231 | &exp_descriptor_standard, |
c906108c SS |
1232 | unk_lang_parser, |
1233 | unk_lang_error, | |
e85c3284 | 1234 | null_post_parser, |
c906108c SS |
1235 | unk_lang_printchar, /* Print character constant */ |
1236 | unk_lang_printstr, | |
1237 | unk_lang_emit_char, | |
c906108c | 1238 | unk_lang_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 1239 | default_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
1240 | unk_lang_val_print, /* Print a value using appropriate syntax */ |
1241 | unk_lang_value_print, /* Print a top-level value */ | |
f636b87d | 1242 | unk_lang_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 1243 | "this", /* name_of_this */ |
5f9a71c3 | 1244 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 1245 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 1246 | unk_lang_demangle, /* Language specific symbol demangler */ |
31c27f77 | 1247 | unk_lang_class_name, /* Language specific class_name_from_physname */ |
c906108c SS |
1248 | unk_op_print_tab, /* expression operators for printing */ |
1249 | 1, /* c-style arrays */ | |
1250 | 0, /* String lower bound */ | |
6084f43a | 1251 | default_word_break_characters, |
41d27058 | 1252 | default_make_symbol_completion_list, |
f290d38e | 1253 | unknown_language_arch_info, /* la_language_arch_info. */ |
e79af960 | 1254 | default_print_array_index, |
41f1b697 | 1255 | default_pass_by_reference, |
ae6a3a4c | 1256 | default_get_string, |
c906108c SS |
1257 | LANG_MAGIC |
1258 | }; | |
1259 | \f | |
f290d38e AC |
1260 | /* Per-architecture language information. */ |
1261 | ||
1262 | static struct gdbarch_data *language_gdbarch_data; | |
1263 | ||
1264 | struct language_gdbarch | |
1265 | { | |
1266 | /* A vector of per-language per-architecture info. Indexed by "enum | |
1267 | language". */ | |
1268 | struct language_arch_info arch_info[nr_languages]; | |
1269 | }; | |
1270 | ||
1271 | static void * | |
1272 | language_gdbarch_post_init (struct gdbarch *gdbarch) | |
1273 | { | |
1274 | struct language_gdbarch *l; | |
1275 | int i; | |
1276 | ||
1277 | l = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct language_gdbarch); | |
1285b746 | 1278 | for (i = 0; i < languages_size; i++) |
f290d38e AC |
1279 | { |
1280 | if (languages[i] != NULL | |
1281 | && languages[i]->la_language_arch_info != NULL) | |
1282 | languages[i]->la_language_arch_info | |
1283 | (gdbarch, l->arch_info + languages[i]->la_language); | |
1284 | } | |
1285 | return l; | |
1286 | } | |
1287 | ||
1288 | struct type * | |
1289 | language_string_char_type (const struct language_defn *la, | |
1290 | struct gdbarch *gdbarch) | |
1291 | { | |
1292 | struct language_gdbarch *ld = gdbarch_data (gdbarch, | |
1293 | language_gdbarch_data); | |
aba2dd37 | 1294 | return ld->arch_info[la->la_language].string_char_type; |
f290d38e AC |
1295 | } |
1296 | ||
fbb06eb1 UW |
1297 | struct type * |
1298 | language_bool_type (const struct language_defn *la, | |
1299 | struct gdbarch *gdbarch) | |
1300 | { | |
1301 | struct language_gdbarch *ld = gdbarch_data (gdbarch, | |
1302 | language_gdbarch_data); | |
1303 | ||
1304 | if (ld->arch_info[la->la_language].bool_type_symbol) | |
1305 | { | |
1306 | struct symbol *sym; | |
1307 | sym = lookup_symbol (ld->arch_info[la->la_language].bool_type_symbol, | |
1308 | NULL, VAR_DOMAIN, NULL); | |
1309 | if (sym) | |
1310 | { | |
1311 | struct type *type = SYMBOL_TYPE (sym); | |
1312 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
1313 | return type; | |
1314 | } | |
1315 | } | |
1316 | ||
1317 | return ld->arch_info[la->la_language].bool_type_default; | |
1318 | } | |
1319 | ||
f290d38e | 1320 | struct type * |
5a44ea29 | 1321 | language_lookup_primitive_type_by_name (const struct language_defn *la, |
f290d38e AC |
1322 | struct gdbarch *gdbarch, |
1323 | const char *name) | |
1324 | { | |
1325 | struct language_gdbarch *ld = gdbarch_data (gdbarch, | |
1326 | language_gdbarch_data); | |
aba2dd37 UW |
1327 | struct type *const *p; |
1328 | for (p = ld->arch_info[la->la_language].primitive_type_vector; | |
1329 | (*p) != NULL; | |
1330 | p++) | |
f290d38e | 1331 | { |
aba2dd37 UW |
1332 | if (strcmp (TYPE_NAME (*p), name) == 0) |
1333 | return (*p); | |
f290d38e AC |
1334 | } |
1335 | return (NULL); | |
1336 | } | |
1337 | ||
c906108c SS |
1338 | /* Initialize the language routines */ |
1339 | ||
1340 | void | |
fba45db2 | 1341 | _initialize_language (void) |
c906108c | 1342 | { |
b84aa90a PA |
1343 | static const char *type_or_range_names[] |
1344 | = { "on", "off", "warn", "auto", NULL }; | |
1345 | ||
1346 | static const char *case_sensitive_names[] | |
1347 | = { "on", "off", "auto", NULL }; | |
c5aa993b | 1348 | |
f290d38e AC |
1349 | language_gdbarch_data |
1350 | = gdbarch_data_register_post_init (language_gdbarch_post_init); | |
1351 | ||
c5aa993b JM |
1352 | /* GDB commands for language specific stuff */ |
1353 | ||
c5aa993b | 1354 | add_prefix_cmd ("check", no_class, set_check, |
1bedd215 | 1355 | _("Set the status of the type/range checker."), |
c5aa993b JM |
1356 | &setchecklist, "set check ", 0, &setlist); |
1357 | add_alias_cmd ("c", "check", no_class, 1, &setlist); | |
1358 | add_alias_cmd ("ch", "check", no_class, 1, &setlist); | |
1359 | ||
1360 | add_prefix_cmd ("check", no_class, show_check, | |
1bedd215 | 1361 | _("Show the status of the type/range checker."), |
c5aa993b JM |
1362 | &showchecklist, "show check ", 0, &showlist); |
1363 | add_alias_cmd ("c", "check", no_class, 1, &showlist); | |
1364 | add_alias_cmd ("ch", "check", no_class, 1, &showlist); | |
1365 | ||
b84aa90a | 1366 | add_setshow_enum_cmd ("type", class_support, type_or_range_names, &type, _("\ |
4d28ad1e AC |
1367 | Set type checking. (on/warn/off/auto)"), _("\ |
1368 | Show type checking. (on/warn/off/auto)"), NULL, | |
b84aa90a PA |
1369 | set_type_command, |
1370 | show_type_command, | |
1371 | &setchecklist, &showchecklist); | |
5efd5804 | 1372 | |
b84aa90a PA |
1373 | add_setshow_enum_cmd ("range", class_support, type_or_range_names, |
1374 | &range, _("\ | |
4d28ad1e AC |
1375 | Set range checking. (on/warn/off/auto)"), _("\ |
1376 | Show range checking. (on/warn/off/auto)"), NULL, | |
b84aa90a PA |
1377 | set_range_command, |
1378 | show_range_command, | |
1379 | &setchecklist, &showchecklist); | |
1380 | ||
1381 | add_setshow_enum_cmd ("case-sensitive", class_support, case_sensitive_names, | |
1382 | &case_sensitive, _("\ | |
4d28ad1e AC |
1383 | Set case sensitivity in name search. (on/off/auto)"), _("\ |
1384 | Show case sensitivity in name search. (on/off/auto)"), _("\ | |
1385 | For Fortran the default is off; for other languages the default is on."), | |
b84aa90a PA |
1386 | set_case_command, |
1387 | show_case_command, | |
1388 | &setlist, &showlist); | |
63872f9d | 1389 | |
c5aa993b | 1390 | add_language (&auto_language_defn); |
b84aa90a PA |
1391 | add_language (&local_language_defn); |
1392 | add_language (&unknown_language_defn); | |
c5aa993b | 1393 | |
1b36a34b JK |
1394 | language = xstrdup ("auto"); |
1395 | type = xstrdup ("auto"); | |
1396 | range = xstrdup ("auto"); | |
1397 | case_sensitive = xstrdup ("auto"); | |
63872f9d JG |
1398 | |
1399 | /* Have the above take effect */ | |
1400 | set_language (language_auto); | |
c906108c | 1401 | } |