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, |
9b254dd1 | 4 | 2002, 2003, 2004, 2005, 2007, 2008 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 | |
63872f9d JG |
50 | static void set_case_str (void); |
51 | ||
a14ed312 | 52 | static void set_range_str (void); |
c906108c | 53 | |
a14ed312 | 54 | static void set_type_str (void); |
c906108c | 55 | |
a14ed312 | 56 | static void set_lang_str (void); |
c906108c | 57 | |
a14ed312 | 58 | static void unk_lang_error (char *); |
c906108c | 59 | |
a14ed312 | 60 | static int unk_lang_parser (void); |
c906108c | 61 | |
a14ed312 | 62 | static void show_check (char *, int); |
c906108c | 63 | |
a14ed312 | 64 | static void set_check (char *, int); |
c906108c | 65 | |
63872f9d | 66 | static void set_type_range_case (void); |
c906108c | 67 | |
d9fcf2fb | 68 | static void unk_lang_emit_char (int c, struct ui_file *stream, int quoter); |
c906108c | 69 | |
d9fcf2fb | 70 | static void unk_lang_printchar (int c, struct ui_file *stream); |
c906108c | 71 | |
d9fcf2fb JM |
72 | static void unk_lang_print_type (struct type *, char *, struct ui_file *, |
73 | int, int); | |
c906108c | 74 | |
79a45b7d TT |
75 | static int unk_lang_value_print (struct value *, struct ui_file *, |
76 | const struct value_print_options *); | |
c906108c | 77 | |
52f729a7 | 78 | static CORE_ADDR unk_lang_trampoline (struct frame_info *, CORE_ADDR pc); |
f636b87d | 79 | |
c906108c SS |
80 | /* Forward declaration */ |
81 | extern const struct language_defn unknown_language_defn; | |
c5aa993b | 82 | |
c906108c | 83 | /* The current (default at startup) state of type and range checking. |
c5aa993b JM |
84 | (If the modes are set to "auto", though, these are changed based |
85 | on the default language at startup, and then again based on the | |
86 | language of the first source file. */ | |
c906108c SS |
87 | |
88 | enum range_mode range_mode = range_mode_auto; | |
89 | enum range_check range_check = range_check_off; | |
90 | enum type_mode type_mode = type_mode_auto; | |
91 | enum type_check type_check = type_check_off; | |
63872f9d JG |
92 | enum case_mode case_mode = case_mode_auto; |
93 | enum case_sensitivity case_sensitivity = case_sensitive_on; | |
c906108c SS |
94 | |
95 | /* The current language and language_mode (see language.h) */ | |
96 | ||
97 | const struct language_defn *current_language = &unknown_language_defn; | |
98 | enum language_mode language_mode = language_mode_auto; | |
99 | ||
100 | /* The language that the user expects to be typing in (the language | |
101 | of main(), or the last language we notified them about, or C). */ | |
102 | ||
103 | const struct language_defn *expected_language; | |
104 | ||
105 | /* The list of supported languages. The list itself is malloc'd. */ | |
106 | ||
107 | static const struct language_defn **languages; | |
108 | static unsigned languages_size; | |
109 | static unsigned languages_allocsize; | |
110 | #define DEFAULT_ALLOCSIZE 4 | |
111 | ||
112 | /* The "set language/type/range" commands all put stuff in these | |
113 | buffers. This is to make them work as set/show commands. The | |
114 | user's string is copied here, then the set_* commands look at | |
115 | them and update them to something that looks nice when it is | |
116 | printed out. */ | |
117 | ||
118 | static char *language; | |
119 | static char *type; | |
120 | static char *range; | |
63872f9d | 121 | static char *case_sensitive; |
c906108c SS |
122 | |
123 | /* Warning issued when current_language and the language of the current | |
124 | frame do not match. */ | |
125 | char lang_frame_mismatch_warn[] = | |
c5aa993b | 126 | "Warning: the current language does not match this frame."; |
c906108c SS |
127 | \f |
128 | /* This page contains the functions corresponding to GDB commands | |
129 | and their helpers. */ | |
130 | ||
131 | /* Show command. Display a warning if the language set | |
132 | does not match the frame. */ | |
133 | static void | |
4d28ad1e AC |
134 | show_language_command (struct ui_file *file, int from_tty, |
135 | struct cmd_list_element *c, const char *value) | |
c906108c | 136 | { |
c5aa993b | 137 | enum language flang; /* The language of the current frame */ |
c906108c | 138 | |
4d28ad1e | 139 | deprecated_show_value_hack (file, from_tty, c, value); |
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 | ||
147 | /* Set command. Change the current working language. */ | |
148 | static void | |
4d28ad1e | 149 | set_language_command (char *ignore, int from_tty, struct cmd_list_element *c) |
c906108c SS |
150 | { |
151 | int i; | |
152 | enum language flang; | |
153 | char *err_lang; | |
154 | ||
155 | if (!language || !language[0]) | |
156 | { | |
a3f17187 AC |
157 | printf_unfiltered (_("\ |
158 | The currently understood settings are:\n\n\ | |
159 | local or auto Automatic setting based on source file\n")); | |
c906108c SS |
160 | |
161 | for (i = 0; i < languages_size; ++i) | |
162 | { | |
163 | /* Already dealt with these above. */ | |
164 | if (languages[i]->la_language == language_unknown | |
165 | || languages[i]->la_language == language_auto) | |
166 | continue; | |
167 | ||
a3f17187 AC |
168 | /* FIXME: i18n: for now assume that the human-readable name |
169 | is just a capitalization of the internal name. */ | |
c906108c SS |
170 | printf_unfiltered ("%-16s Use the %c%s language\n", |
171 | languages[i]->la_name, | |
c5aa993b JM |
172 | /* Capitalize first letter of language |
173 | name. */ | |
c906108c SS |
174 | toupper (languages[i]->la_name[0]), |
175 | languages[i]->la_name + 1); | |
176 | } | |
177 | /* Restore the silly string. */ | |
c5aa993b | 178 | set_language (current_language->la_language); |
c906108c SS |
179 | return; |
180 | } | |
181 | ||
182 | /* Search the list of languages for a match. */ | |
c5aa993b JM |
183 | for (i = 0; i < languages_size; i++) |
184 | { | |
6314a349 | 185 | if (strcmp (languages[i]->la_name, language) == 0) |
c5aa993b JM |
186 | { |
187 | /* Found it! Go into manual mode, and use this language. */ | |
188 | if (languages[i]->la_language == language_auto) | |
189 | { | |
8b60591b JB |
190 | /* Enter auto mode. Set to the current frame's language, if |
191 | known, or fallback to the initial language. */ | |
c5aa993b JM |
192 | language_mode = language_mode_auto; |
193 | flang = get_frame_language (); | |
194 | if (flang != language_unknown) | |
195 | set_language (flang); | |
8b60591b JB |
196 | else |
197 | set_initial_language (); | |
c5aa993b JM |
198 | expected_language = current_language; |
199 | return; | |
200 | } | |
201 | else | |
202 | { | |
203 | /* Enter manual mode. Set the specified language. */ | |
204 | language_mode = language_mode_manual; | |
205 | current_language = languages[i]; | |
63872f9d | 206 | set_type_range_case (); |
c5aa993b JM |
207 | set_lang_str (); |
208 | expected_language = current_language; | |
209 | return; | |
210 | } | |
211 | } | |
c906108c | 212 | } |
c906108c SS |
213 | |
214 | /* Reset the language (esp. the global string "language") to the | |
215 | correct values. */ | |
c5aa993b | 216 | err_lang = savestring (language, strlen (language)); |
b8c9b27d | 217 | make_cleanup (xfree, err_lang); /* Free it after error */ |
c5aa993b | 218 | set_language (current_language->la_language); |
8a3fe4f8 | 219 | error (_("Unknown language `%s'."), err_lang); |
c906108c SS |
220 | } |
221 | ||
222 | /* Show command. Display a warning if the type setting does | |
223 | not match the current language. */ | |
224 | static void | |
4d28ad1e AC |
225 | show_type_command (struct ui_file *file, int from_tty, |
226 | struct cmd_list_element *c, const char *value) | |
c906108c | 227 | { |
4d28ad1e | 228 | deprecated_show_value_hack (file, from_tty, c, value); |
c5aa993b JM |
229 | if (type_check != current_language->la_type_check) |
230 | printf_unfiltered ( | |
231 | "Warning: the current type check setting does not match the language.\n"); | |
c906108c SS |
232 | } |
233 | ||
234 | /* Set command. Change the setting for type checking. */ | |
235 | static void | |
4d28ad1e | 236 | set_type_command (char *ignore, int from_tty, struct cmd_list_element *c) |
c906108c | 237 | { |
6314a349 | 238 | if (strcmp (type, "on") == 0) |
c5aa993b | 239 | { |
c906108c SS |
240 | type_check = type_check_on; |
241 | type_mode = type_mode_manual; | |
c5aa993b | 242 | } |
6314a349 | 243 | else if (strcmp (type, "warn") == 0) |
c5aa993b | 244 | { |
c906108c SS |
245 | type_check = type_check_warn; |
246 | type_mode = type_mode_manual; | |
c5aa993b | 247 | } |
6314a349 | 248 | else if (strcmp (type, "off") == 0) |
c5aa993b | 249 | { |
c906108c SS |
250 | type_check = type_check_off; |
251 | type_mode = type_mode_manual; | |
c5aa993b | 252 | } |
6314a349 | 253 | else if (strcmp (type, "auto") == 0) |
c5aa993b | 254 | { |
c906108c | 255 | type_mode = type_mode_auto; |
63872f9d | 256 | set_type_range_case (); |
c906108c | 257 | /* Avoid hitting the set_type_str call below. We |
63872f9d | 258 | did it in set_type_range_case. */ |
c906108c | 259 | return; |
c5aa993b | 260 | } |
c4093a6a JM |
261 | else |
262 | { | |
8a3fe4f8 | 263 | warning (_("Unrecognized type check setting: \"%s\""), type); |
c4093a6a | 264 | } |
c5aa993b | 265 | set_type_str (); |
4d28ad1e | 266 | show_type_command (NULL, from_tty, NULL, NULL); |
c906108c SS |
267 | } |
268 | ||
269 | /* Show command. Display a warning if the range setting does | |
270 | not match the current language. */ | |
271 | static void | |
4d28ad1e AC |
272 | show_range_command (struct ui_file *file, int from_tty, |
273 | struct cmd_list_element *c, const char *value) | |
c906108c | 274 | { |
4d28ad1e | 275 | deprecated_show_value_hack (file, from_tty, c, value); |
c5aa993b JM |
276 | if (range_check != current_language->la_range_check) |
277 | printf_unfiltered ( | |
278 | "Warning: the current range check setting does not match the language.\n"); | |
c906108c SS |
279 | } |
280 | ||
281 | /* Set command. Change the setting for range checking. */ | |
282 | static void | |
4d28ad1e | 283 | set_range_command (char *ignore, int from_tty, struct cmd_list_element *c) |
c906108c | 284 | { |
6314a349 | 285 | if (strcmp (range, "on") == 0) |
c5aa993b | 286 | { |
c906108c SS |
287 | range_check = range_check_on; |
288 | range_mode = range_mode_manual; | |
c5aa993b | 289 | } |
6314a349 | 290 | else if (strcmp (range, "warn") == 0) |
c5aa993b | 291 | { |
c906108c SS |
292 | range_check = range_check_warn; |
293 | range_mode = range_mode_manual; | |
c5aa993b | 294 | } |
6314a349 | 295 | else if (strcmp (range, "off") == 0) |
c5aa993b | 296 | { |
c906108c SS |
297 | range_check = range_check_off; |
298 | range_mode = range_mode_manual; | |
c5aa993b | 299 | } |
6314a349 | 300 | else if (strcmp (range, "auto") == 0) |
c5aa993b | 301 | { |
c906108c | 302 | range_mode = range_mode_auto; |
63872f9d | 303 | set_type_range_case (); |
c906108c | 304 | /* Avoid hitting the set_range_str call below. We |
63872f9d | 305 | did it in set_type_range_case. */ |
c906108c | 306 | return; |
c5aa993b | 307 | } |
c4093a6a JM |
308 | else |
309 | { | |
8a3fe4f8 | 310 | warning (_("Unrecognized range check setting: \"%s\""), range); |
c4093a6a | 311 | } |
c5aa993b | 312 | set_range_str (); |
4d28ad1e | 313 | show_range_command (NULL, from_tty, NULL, NULL); |
c906108c SS |
314 | } |
315 | ||
63872f9d JG |
316 | /* Show command. Display a warning if the case sensitivity setting does |
317 | not match the current language. */ | |
318 | static void | |
4d28ad1e AC |
319 | show_case_command (struct ui_file *file, int from_tty, |
320 | struct cmd_list_element *c, const char *value) | |
63872f9d | 321 | { |
4d28ad1e AC |
322 | deprecated_show_value_hack (file, from_tty, c, value); |
323 | if (case_sensitivity != current_language->la_case_sensitivity) | |
324 | printf_unfiltered( | |
63872f9d JG |
325 | "Warning: the current case sensitivity setting does not match the language.\n"); |
326 | } | |
327 | ||
591e78ff MK |
328 | /* Set command. Change the setting for case sensitivity. */ |
329 | ||
63872f9d | 330 | static void |
4d28ad1e | 331 | set_case_command (char *ignore, int from_tty, struct cmd_list_element *c) |
63872f9d | 332 | { |
591e78ff MK |
333 | if (strcmp (case_sensitive, "on") == 0) |
334 | { | |
335 | case_sensitivity = case_sensitive_on; | |
336 | case_mode = case_mode_manual; | |
337 | } | |
338 | else if (strcmp (case_sensitive, "off") == 0) | |
339 | { | |
340 | case_sensitivity = case_sensitive_off; | |
341 | case_mode = case_mode_manual; | |
342 | } | |
343 | else if (strcmp (case_sensitive, "auto") == 0) | |
344 | { | |
345 | case_mode = case_mode_auto; | |
346 | set_type_range_case (); | |
347 | /* Avoid hitting the set_case_str call below. We did it in | |
348 | set_type_range_case. */ | |
349 | return; | |
350 | } | |
63872f9d | 351 | else |
591e78ff MK |
352 | { |
353 | warning (_("Unrecognized case-sensitive setting: \"%s\""), | |
354 | case_sensitive); | |
355 | } | |
63872f9d | 356 | set_case_str(); |
4d28ad1e | 357 | show_case_command (NULL, from_tty, NULL, NULL); |
63872f9d JG |
358 | } |
359 | ||
360 | /* Set the status of range and type checking and case sensitivity based on | |
c906108c SS |
361 | the current modes and the current language. |
362 | If SHOW is non-zero, then print out the current language, | |
363 | type and range checking status. */ | |
364 | static void | |
63872f9d | 365 | set_type_range_case (void) |
c906108c SS |
366 | { |
367 | ||
368 | if (range_mode == range_mode_auto) | |
369 | range_check = current_language->la_range_check; | |
370 | ||
371 | if (type_mode == type_mode_auto) | |
372 | type_check = current_language->la_type_check; | |
373 | ||
63872f9d JG |
374 | if (case_mode == case_mode_auto) |
375 | case_sensitivity = current_language->la_case_sensitivity; | |
376 | ||
c5aa993b JM |
377 | set_type_str (); |
378 | set_range_str (); | |
63872f9d | 379 | set_case_str (); |
c906108c SS |
380 | } |
381 | ||
382 | /* Set current language to (enum language) LANG. Returns previous language. */ | |
383 | ||
384 | enum language | |
fba45db2 | 385 | set_language (enum language lang) |
c906108c SS |
386 | { |
387 | int i; | |
388 | enum language prev_language; | |
389 | ||
390 | prev_language = current_language->la_language; | |
391 | ||
c5aa993b JM |
392 | for (i = 0; i < languages_size; i++) |
393 | { | |
394 | if (languages[i]->la_language == lang) | |
395 | { | |
396 | current_language = languages[i]; | |
63872f9d | 397 | set_type_range_case (); |
c5aa993b JM |
398 | set_lang_str (); |
399 | break; | |
400 | } | |
c906108c | 401 | } |
c906108c SS |
402 | |
403 | return prev_language; | |
404 | } | |
405 | \f | |
406 | /* This page contains functions that update the global vars | |
407 | language, type and range. */ | |
408 | static void | |
fba45db2 | 409 | set_lang_str (void) |
c906108c | 410 | { |
c5aa993b | 411 | char *prefix = ""; |
c906108c | 412 | |
ccdaf797 | 413 | if (language) |
b8c9b27d | 414 | xfree (language); |
c5aa993b JM |
415 | if (language_mode == language_mode_auto) |
416 | prefix = "auto; currently "; | |
c906108c | 417 | |
1754f103 | 418 | language = concat (prefix, current_language->la_name, (char *)NULL); |
c906108c SS |
419 | } |
420 | ||
421 | static void | |
fba45db2 | 422 | set_type_str (void) |
c906108c | 423 | { |
c4093a6a | 424 | char *tmp = NULL, *prefix = ""; |
c906108c | 425 | |
ccdaf797 | 426 | if (type) |
b8c9b27d | 427 | xfree (type); |
c5aa993b JM |
428 | if (type_mode == type_mode_auto) |
429 | prefix = "auto; currently "; | |
c906108c | 430 | |
c5aa993b JM |
431 | switch (type_check) |
432 | { | |
433 | case type_check_on: | |
c906108c SS |
434 | tmp = "on"; |
435 | break; | |
c5aa993b | 436 | case type_check_off: |
c906108c SS |
437 | tmp = "off"; |
438 | break; | |
c5aa993b | 439 | case type_check_warn: |
c906108c SS |
440 | tmp = "warn"; |
441 | break; | |
c5aa993b | 442 | default: |
8a3fe4f8 | 443 | error (_("Unrecognized type check setting.")); |
c5aa993b | 444 | } |
c906108c | 445 | |
1754f103 | 446 | type = concat (prefix, tmp, (char *)NULL); |
c906108c SS |
447 | } |
448 | ||
449 | static void | |
fba45db2 | 450 | set_range_str (void) |
c906108c | 451 | { |
c5aa993b | 452 | char *tmp, *pref = ""; |
c906108c | 453 | |
c5aa993b JM |
454 | if (range_mode == range_mode_auto) |
455 | pref = "auto; currently "; | |
c906108c | 456 | |
c5aa993b JM |
457 | switch (range_check) |
458 | { | |
459 | case range_check_on: | |
c906108c SS |
460 | tmp = "on"; |
461 | break; | |
c5aa993b | 462 | case range_check_off: |
c906108c SS |
463 | tmp = "off"; |
464 | break; | |
c5aa993b | 465 | case range_check_warn: |
c906108c SS |
466 | tmp = "warn"; |
467 | break; | |
c5aa993b | 468 | default: |
8a3fe4f8 | 469 | error (_("Unrecognized range check setting.")); |
c5aa993b | 470 | } |
c906108c | 471 | |
ccdaf797 | 472 | if (range) |
b8c9b27d | 473 | xfree (range); |
1754f103 | 474 | range = concat (pref, tmp, (char *)NULL); |
c906108c SS |
475 | } |
476 | ||
63872f9d | 477 | static void |
5ae5f592 | 478 | set_case_str (void) |
63872f9d JG |
479 | { |
480 | char *tmp = NULL, *prefix = ""; | |
481 | ||
482 | if (case_mode==case_mode_auto) | |
483 | prefix = "auto; currently "; | |
484 | ||
485 | switch (case_sensitivity) | |
486 | { | |
487 | case case_sensitive_on: | |
488 | tmp = "on"; | |
489 | break; | |
490 | case case_sensitive_off: | |
491 | tmp = "off"; | |
492 | break; | |
493 | default: | |
8a3fe4f8 | 494 | error (_("Unrecognized case-sensitive setting.")); |
63872f9d JG |
495 | } |
496 | ||
b8c9b27d | 497 | xfree (case_sensitive); |
1754f103 | 498 | case_sensitive = concat (prefix, tmp, (char *)NULL); |
63872f9d | 499 | } |
c906108c SS |
500 | |
501 | /* Print out the current language settings: language, range and | |
502 | type checking. If QUIETLY, print only what has changed. */ | |
503 | ||
504 | void | |
fba45db2 | 505 | language_info (int quietly) |
c906108c SS |
506 | { |
507 | if (quietly && expected_language == current_language) | |
508 | return; | |
509 | ||
510 | expected_language = current_language; | |
a3f17187 | 511 | printf_unfiltered (_("Current language: %s\n"), language); |
4d28ad1e | 512 | show_language_command (NULL, 1, NULL, NULL); |
c906108c SS |
513 | |
514 | if (!quietly) | |
515 | { | |
a3f17187 | 516 | printf_unfiltered (_("Type checking: %s\n"), type); |
4d28ad1e | 517 | show_type_command (NULL, 1, NULL, NULL); |
a3f17187 | 518 | printf_unfiltered (_("Range checking: %s\n"), range); |
4d28ad1e | 519 | show_range_command (NULL, 1, NULL, NULL); |
a3f17187 | 520 | printf_unfiltered (_("Case sensitivity: %s\n"), case_sensitive); |
4d28ad1e | 521 | show_case_command (NULL, 1, NULL, NULL); |
c906108c SS |
522 | } |
523 | } | |
524 | \f | |
525 | /* Return the result of a binary operation. */ | |
526 | ||
c5aa993b | 527 | #if 0 /* Currently unused */ |
c906108c SS |
528 | |
529 | struct type * | |
3d6d86c6 | 530 | binop_result_type (struct value *v1, struct value *v2) |
c906108c | 531 | { |
c5aa993b JM |
532 | int size, uns; |
533 | struct type *t1 = check_typedef (VALUE_TYPE (v1)); | |
534 | struct type *t2 = check_typedef (VALUE_TYPE (v2)); | |
535 | ||
536 | int l1 = TYPE_LENGTH (t1); | |
537 | int l2 = TYPE_LENGTH (t2); | |
538 | ||
539 | switch (current_language->la_language) | |
540 | { | |
541 | case language_c: | |
542 | case language_cplus: | |
eb392fbf | 543 | case language_objc: |
c5aa993b JM |
544 | if (TYPE_CODE (t1) == TYPE_CODE_FLT) |
545 | return TYPE_CODE (t2) == TYPE_CODE_FLT && l2 > l1 ? | |
546 | VALUE_TYPE (v2) : VALUE_TYPE (v1); | |
547 | else if (TYPE_CODE (t2) == TYPE_CODE_FLT) | |
548 | return TYPE_CODE (t1) == TYPE_CODE_FLT && l1 > l2 ? | |
549 | VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
550 | else if (TYPE_UNSIGNED (t1) && l1 > l2) | |
551 | return VALUE_TYPE (v1); | |
552 | else if (TYPE_UNSIGNED (t2) && l2 > l1) | |
553 | return VALUE_TYPE (v2); | |
554 | else /* Both are signed. Result is the longer type */ | |
555 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
c906108c | 556 | break; |
c5aa993b | 557 | case language_m2: |
c906108c | 558 | /* If we are doing type-checking, l1 should equal l2, so this is |
c5aa993b JM |
559 | not needed. */ |
560 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
c906108c | 561 | break; |
c5aa993b | 562 | } |
e2e0b3e5 | 563 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c5aa993b | 564 | return (struct type *) 0; /* For lint */ |
c906108c SS |
565 | } |
566 | ||
c5aa993b | 567 | #endif /* 0 */ |
c906108c SS |
568 | #if 0 |
569 | /* This page contains functions that are used in type/range checking. | |
570 | They all return zero if the type/range check fails. | |
571 | ||
572 | It is hoped that these will make extending GDB to parse different | |
573 | languages a little easier. These are primarily used in eval.c when | |
574 | evaluating expressions and making sure that their types are correct. | |
575 | Instead of having a mess of conjucted/disjuncted expressions in an "if", | |
576 | the ideas of type can be wrapped up in the following functions. | |
577 | ||
578 | Note that some of them are not currently dependent upon which language | |
579 | is currently being parsed. For example, floats are the same in | |
580 | C and Modula-2 (ie. the only floating point type has TYPE_CODE of | |
581 | TYPE_CODE_FLT), while booleans are different. */ | |
582 | ||
583 | /* Returns non-zero if its argument is a simple type. This is the same for | |
584 | both Modula-2 and for C. In the C case, TYPE_CODE_CHAR will never occur, | |
585 | and thus will never cause the failure of the test. */ | |
586 | int | |
fba45db2 | 587 | simple_type (struct type *type) |
c906108c SS |
588 | { |
589 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
590 | switch (TYPE_CODE (type)) |
591 | { | |
592 | case TYPE_CODE_INT: | |
593 | case TYPE_CODE_CHAR: | |
594 | case TYPE_CODE_ENUM: | |
595 | case TYPE_CODE_FLT: | |
596 | case TYPE_CODE_RANGE: | |
597 | case TYPE_CODE_BOOL: | |
598 | return 1; | |
c906108c | 599 | |
c5aa993b JM |
600 | default: |
601 | return 0; | |
602 | } | |
c906108c SS |
603 | } |
604 | ||
605 | /* Returns non-zero if its argument is of an ordered type. | |
606 | An ordered type is one in which the elements can be tested for the | |
607 | properties of "greater than", "less than", etc, or for which the | |
608 | operations "increment" or "decrement" make sense. */ | |
609 | int | |
fba45db2 | 610 | ordered_type (struct type *type) |
c906108c SS |
611 | { |
612 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
613 | switch (TYPE_CODE (type)) |
614 | { | |
615 | case TYPE_CODE_INT: | |
616 | case TYPE_CODE_CHAR: | |
617 | case TYPE_CODE_ENUM: | |
618 | case TYPE_CODE_FLT: | |
619 | case TYPE_CODE_RANGE: | |
620 | return 1; | |
c906108c | 621 | |
c5aa993b JM |
622 | default: |
623 | return 0; | |
624 | } | |
c906108c SS |
625 | } |
626 | ||
627 | /* Returns non-zero if the two types are the same */ | |
628 | int | |
fba45db2 | 629 | same_type (struct type *arg1, struct type *arg2) |
c906108c SS |
630 | { |
631 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
632 | if (structured_type (arg1) ? !structured_type (arg2) : structured_type (arg2)) |
633 | /* One is structured and one isn't */ | |
634 | return 0; | |
635 | else if (structured_type (arg1) && structured_type (arg2)) | |
636 | return arg1 == arg2; | |
637 | else if (numeric_type (arg1) && numeric_type (arg2)) | |
638 | return (TYPE_CODE (arg2) == TYPE_CODE (arg1)) && | |
639 | (TYPE_UNSIGNED (arg1) == TYPE_UNSIGNED (arg2)) | |
640 | ? 1 : 0; | |
641 | else | |
642 | return arg1 == arg2; | |
c906108c SS |
643 | } |
644 | ||
645 | /* Returns non-zero if the type is integral */ | |
646 | int | |
fba45db2 | 647 | integral_type (struct type *type) |
c906108c SS |
648 | { |
649 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
650 | switch (current_language->la_language) |
651 | { | |
652 | case language_c: | |
653 | case language_cplus: | |
eb392fbf | 654 | case language_objc: |
c5aa993b JM |
655 | return (TYPE_CODE (type) != TYPE_CODE_INT) && |
656 | (TYPE_CODE (type) != TYPE_CODE_ENUM) ? 0 : 1; | |
657 | case language_m2: | |
750ba382 | 658 | case language_pascal: |
c5aa993b | 659 | return TYPE_CODE (type) != TYPE_CODE_INT ? 0 : 1; |
c5aa993b | 660 | default: |
8a3fe4f8 | 661 | error (_("Language not supported.")); |
c5aa993b | 662 | } |
c906108c SS |
663 | } |
664 | ||
665 | /* Returns non-zero if the value is numeric */ | |
666 | int | |
fba45db2 | 667 | numeric_type (struct type *type) |
c906108c SS |
668 | { |
669 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
670 | switch (TYPE_CODE (type)) |
671 | { | |
672 | case TYPE_CODE_INT: | |
673 | case TYPE_CODE_FLT: | |
674 | return 1; | |
c906108c | 675 | |
c5aa993b JM |
676 | default: |
677 | return 0; | |
678 | } | |
c906108c SS |
679 | } |
680 | ||
681 | /* Returns non-zero if the value is a character type */ | |
682 | int | |
fba45db2 | 683 | character_type (struct type *type) |
c906108c SS |
684 | { |
685 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
686 | switch (current_language->la_language) |
687 | { | |
c5aa993b | 688 | case language_m2: |
750ba382 | 689 | case language_pascal: |
c5aa993b JM |
690 | return TYPE_CODE (type) != TYPE_CODE_CHAR ? 0 : 1; |
691 | ||
692 | case language_c: | |
693 | case language_cplus: | |
eb392fbf | 694 | case language_objc: |
c5aa993b JM |
695 | return (TYPE_CODE (type) == TYPE_CODE_INT) && |
696 | TYPE_LENGTH (type) == sizeof (char) | |
697 | ? 1 : 0; | |
698 | default: | |
c906108c | 699 | return (0); |
c5aa993b | 700 | } |
c906108c SS |
701 | } |
702 | ||
703 | /* Returns non-zero if the value is a string type */ | |
704 | int | |
fba45db2 | 705 | string_type (struct type *type) |
c906108c SS |
706 | { |
707 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
708 | switch (current_language->la_language) |
709 | { | |
c5aa993b | 710 | case language_m2: |
750ba382 | 711 | case language_pascal: |
c5aa993b JM |
712 | return TYPE_CODE (type) != TYPE_CODE_STRING ? 0 : 1; |
713 | ||
714 | case language_c: | |
715 | case language_cplus: | |
eb392fbf | 716 | case language_objc: |
c906108c SS |
717 | /* C does not have distinct string type. */ |
718 | return (0); | |
c5aa993b | 719 | default: |
c906108c | 720 | return (0); |
c5aa993b | 721 | } |
c906108c SS |
722 | } |
723 | ||
724 | /* Returns non-zero if the value is a boolean type */ | |
725 | int | |
fba45db2 | 726 | boolean_type (struct type *type) |
c906108c SS |
727 | { |
728 | CHECK_TYPEDEF (type); | |
729 | if (TYPE_CODE (type) == TYPE_CODE_BOOL) | |
730 | return 1; | |
c5aa993b | 731 | switch (current_language->la_language) |
c906108c SS |
732 | { |
733 | case language_c: | |
734 | case language_cplus: | |
eb392fbf | 735 | case language_objc: |
db034ac5 | 736 | /* Might be more cleanly handled by having a |
1b831c93 | 737 | TYPE_CODE_INT_NOT_BOOL for (the deleted) CHILL and such |
db034ac5 | 738 | languages, or a TYPE_CODE_INT_OR_BOOL for C. */ |
c906108c SS |
739 | if (TYPE_CODE (type) == TYPE_CODE_INT) |
740 | return 1; | |
c5aa993b | 741 | default: |
c906108c | 742 | break; |
c5aa993b | 743 | } |
c906108c SS |
744 | return 0; |
745 | } | |
746 | ||
747 | /* Returns non-zero if the value is a floating-point type */ | |
748 | int | |
fba45db2 | 749 | float_type (struct type *type) |
c906108c SS |
750 | { |
751 | CHECK_TYPEDEF (type); | |
c5aa993b | 752 | return TYPE_CODE (type) == TYPE_CODE_FLT; |
c906108c SS |
753 | } |
754 | ||
755 | /* Returns non-zero if the value is a pointer type */ | |
756 | int | |
fba45db2 | 757 | pointer_type (struct type *type) |
c906108c | 758 | { |
c5aa993b JM |
759 | return TYPE_CODE (type) == TYPE_CODE_PTR || |
760 | TYPE_CODE (type) == TYPE_CODE_REF; | |
c906108c SS |
761 | } |
762 | ||
763 | /* Returns non-zero if the value is a structured type */ | |
764 | int | |
fba45db2 | 765 | structured_type (struct type *type) |
c906108c SS |
766 | { |
767 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
768 | switch (current_language->la_language) |
769 | { | |
770 | case language_c: | |
771 | case language_cplus: | |
eb392fbf | 772 | case language_objc: |
c5aa993b JM |
773 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || |
774 | (TYPE_CODE (type) == TYPE_CODE_UNION) || | |
775 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
750ba382 PM |
776 | case language_pascal: |
777 | return (TYPE_CODE(type) == TYPE_CODE_STRUCT) || | |
778 | (TYPE_CODE(type) == TYPE_CODE_UNION) || | |
779 | (TYPE_CODE(type) == TYPE_CODE_SET) || | |
780 | (TYPE_CODE(type) == TYPE_CODE_ARRAY); | |
c5aa993b JM |
781 | case language_m2: |
782 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || | |
783 | (TYPE_CODE (type) == TYPE_CODE_SET) || | |
784 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
c5aa993b | 785 | default: |
c906108c | 786 | return (0); |
c5aa993b | 787 | } |
c906108c SS |
788 | } |
789 | #endif | |
790 | \f | |
c906108c SS |
791 | /* This page contains functions that return info about |
792 | (struct value) values used in GDB. */ | |
793 | ||
794 | /* Returns non-zero if the value VAL represents a true value. */ | |
795 | int | |
3d6d86c6 | 796 | value_true (struct value *val) |
c906108c SS |
797 | { |
798 | /* It is possible that we should have some sort of error if a non-boolean | |
799 | value is used in this context. Possibly dependent on some kind of | |
800 | "boolean-checking" option like range checking. But it should probably | |
801 | not depend on the language except insofar as is necessary to identify | |
802 | a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean | |
803 | should be an error, probably). */ | |
804 | return !value_logical_not (val); | |
805 | } | |
806 | \f | |
c906108c SS |
807 | /* This page contains functions for the printing out of |
808 | error messages that occur during type- and range- | |
809 | checking. */ | |
810 | ||
ddfe3c15 AC |
811 | /* These are called when a language fails a type- or range-check. The |
812 | first argument should be a printf()-style format string, and the | |
813 | rest of the arguments should be its arguments. If | |
814 | [type|range]_check is [type|range]_check_on, an error is printed; | |
815 | if [type|range]_check_warn, a warning; otherwise just the | |
816 | message. */ | |
c906108c SS |
817 | |
818 | void | |
ddfe3c15 | 819 | type_error (const char *string,...) |
c906108c | 820 | { |
c5aa993b | 821 | va_list args; |
c5aa993b | 822 | va_start (args, string); |
c906108c | 823 | |
ddfe3c15 AC |
824 | switch (type_check) |
825 | { | |
826 | case type_check_warn: | |
827 | vwarning (string, args); | |
828 | break; | |
829 | case type_check_on: | |
830 | verror (string, args); | |
831 | break; | |
832 | case type_check_off: | |
833 | /* FIXME: cagney/2002-01-30: Should this function print anything | |
834 | when type error is off? */ | |
835 | vfprintf_filtered (gdb_stderr, string, args); | |
836 | fprintf_filtered (gdb_stderr, "\n"); | |
837 | break; | |
838 | default: | |
e2e0b3e5 | 839 | internal_error (__FILE__, __LINE__, _("bad switch")); |
ddfe3c15 | 840 | } |
c5aa993b | 841 | va_end (args); |
c906108c SS |
842 | } |
843 | ||
844 | void | |
ddfe3c15 | 845 | range_error (const char *string,...) |
c906108c | 846 | { |
c5aa993b | 847 | va_list args; |
c5aa993b | 848 | va_start (args, string); |
c906108c | 849 | |
ddfe3c15 AC |
850 | switch (range_check) |
851 | { | |
852 | case range_check_warn: | |
853 | vwarning (string, args); | |
854 | break; | |
855 | case range_check_on: | |
856 | verror (string, args); | |
857 | break; | |
858 | case range_check_off: | |
859 | /* FIXME: cagney/2002-01-30: Should this function print anything | |
860 | when range error is off? */ | |
861 | vfprintf_filtered (gdb_stderr, string, args); | |
862 | fprintf_filtered (gdb_stderr, "\n"); | |
863 | break; | |
864 | default: | |
e2e0b3e5 | 865 | internal_error (__FILE__, __LINE__, _("bad switch")); |
ddfe3c15 | 866 | } |
c5aa993b | 867 | va_end (args); |
c906108c | 868 | } |
c906108c | 869 | \f |
c5aa993b | 870 | |
c906108c SS |
871 | /* This page contains miscellaneous functions */ |
872 | ||
873 | /* Return the language enum for a given language string. */ | |
874 | ||
875 | enum language | |
fba45db2 | 876 | language_enum (char *str) |
c906108c SS |
877 | { |
878 | int i; | |
879 | ||
c5aa993b | 880 | for (i = 0; i < languages_size; i++) |
591e78ff | 881 | if (strcmp (languages[i]->la_name, str) == 0) |
c906108c SS |
882 | return languages[i]->la_language; |
883 | ||
884 | return language_unknown; | |
885 | } | |
886 | ||
887 | /* Return the language struct for a given language enum. */ | |
888 | ||
889 | const struct language_defn * | |
fba45db2 | 890 | language_def (enum language lang) |
c906108c SS |
891 | { |
892 | int i; | |
893 | ||
c5aa993b JM |
894 | for (i = 0; i < languages_size; i++) |
895 | { | |
896 | if (languages[i]->la_language == lang) | |
897 | { | |
898 | return languages[i]; | |
899 | } | |
c906108c | 900 | } |
c906108c SS |
901 | return NULL; |
902 | } | |
903 | ||
904 | /* Return the language as a string */ | |
905 | char * | |
fba45db2 | 906 | language_str (enum language lang) |
c906108c SS |
907 | { |
908 | int i; | |
909 | ||
c5aa993b JM |
910 | for (i = 0; i < languages_size; i++) |
911 | { | |
912 | if (languages[i]->la_language == lang) | |
913 | { | |
914 | return languages[i]->la_name; | |
915 | } | |
c906108c | 916 | } |
c906108c SS |
917 | return "Unknown"; |
918 | } | |
919 | ||
920 | static void | |
fba45db2 | 921 | set_check (char *ignore, int from_tty) |
c906108c | 922 | { |
c5aa993b JM |
923 | printf_unfiltered ( |
924 | "\"set check\" must be followed by the name of a check subcommand.\n"); | |
925 | help_list (setchecklist, "set check ", -1, gdb_stdout); | |
c906108c SS |
926 | } |
927 | ||
928 | static void | |
fba45db2 | 929 | show_check (char *ignore, int from_tty) |
c906108c | 930 | { |
c5aa993b | 931 | cmd_show_list (showchecklist, from_tty, ""); |
c906108c SS |
932 | } |
933 | \f | |
934 | /* Add a language to the set of known languages. */ | |
935 | ||
936 | void | |
fba45db2 | 937 | add_language (const struct language_defn *lang) |
c906108c SS |
938 | { |
939 | if (lang->la_magic != LANG_MAGIC) | |
940 | { | |
c5aa993b JM |
941 | fprintf_unfiltered (gdb_stderr, "Magic number of %s language struct wrong\n", |
942 | lang->la_name); | |
e2e0b3e5 | 943 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
944 | } |
945 | ||
946 | if (!languages) | |
947 | { | |
948 | languages_allocsize = DEFAULT_ALLOCSIZE; | |
949 | languages = (const struct language_defn **) xmalloc | |
950 | (languages_allocsize * sizeof (*languages)); | |
951 | } | |
952 | if (languages_size >= languages_allocsize) | |
953 | { | |
954 | languages_allocsize *= 2; | |
955 | languages = (const struct language_defn **) xrealloc ((char *) languages, | |
c5aa993b | 956 | languages_allocsize * sizeof (*languages)); |
c906108c SS |
957 | } |
958 | languages[languages_size++] = lang; | |
959 | } | |
960 | ||
f636b87d AF |
961 | /* Iterate through all registered languages looking for and calling |
962 | any non-NULL struct language_defn.skip_trampoline() functions. | |
963 | Return the result from the first that returns non-zero, or 0 if all | |
964 | `fail'. */ | |
965 | CORE_ADDR | |
52f729a7 | 966 | skip_language_trampoline (struct frame_info *frame, CORE_ADDR pc) |
f636b87d AF |
967 | { |
968 | int i; | |
969 | ||
970 | for (i = 0; i < languages_size; i++) | |
971 | { | |
972 | if (languages[i]->skip_trampoline) | |
973 | { | |
52f729a7 | 974 | CORE_ADDR real_pc = (languages[i]->skip_trampoline) (frame, pc); |
f636b87d AF |
975 | if (real_pc) |
976 | return real_pc; | |
977 | } | |
978 | } | |
979 | ||
980 | return 0; | |
981 | } | |
982 | ||
9a3d7dfd AF |
983 | /* Return demangled language symbol, or NULL. |
984 | FIXME: Options are only useful for certain languages and ignored | |
985 | by others, so it would be better to remove them here and have a | |
986 | more flexible demangler for the languages that need it. | |
987 | FIXME: Sometimes the demangler is invoked when we don't know the | |
988 | language, so we can't use this everywhere. */ | |
989 | char * | |
990 | language_demangle (const struct language_defn *current_language, | |
991 | const char *mangled, int options) | |
992 | { | |
993 | if (current_language != NULL && current_language->la_demangle) | |
994 | return current_language->la_demangle (mangled, options); | |
995 | return NULL; | |
996 | } | |
997 | ||
31c27f77 JJ |
998 | /* Return class name from physname or NULL. */ |
999 | char * | |
1000 | language_class_name_from_physname (const struct language_defn *current_language, | |
1001 | const char *physname) | |
1002 | { | |
1003 | if (current_language != NULL && current_language->la_class_name_from_physname) | |
1004 | return current_language->la_class_name_from_physname (physname); | |
1005 | return NULL; | |
1006 | } | |
1007 | ||
41f1b697 DJ |
1008 | /* Return non-zero if TYPE should be passed (and returned) by |
1009 | reference at the language level. */ | |
1010 | int | |
1011 | language_pass_by_reference (struct type *type) | |
1012 | { | |
1013 | return current_language->la_pass_by_reference (type); | |
1014 | } | |
1015 | ||
1016 | /* Return zero; by default, types are passed by value at the language | |
1017 | level. The target ABI may pass or return some structs by reference | |
1018 | independent of this. */ | |
1019 | int | |
1020 | default_pass_by_reference (struct type *type) | |
1021 | { | |
1022 | return 0; | |
1023 | } | |
1024 | ||
9f0a5303 JB |
1025 | /* Return the default string containing the list of characters |
1026 | delimiting words. This is a reasonable default value that | |
1027 | most languages should be able to use. */ | |
1028 | ||
1029 | char * | |
1030 | default_word_break_characters (void) | |
1031 | { | |
1032 | return " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-"; | |
1033 | } | |
f636b87d | 1034 | |
e79af960 JB |
1035 | /* Print the index of array elements using the C99 syntax. */ |
1036 | ||
1037 | void | |
1038 | default_print_array_index (struct value *index_value, struct ui_file *stream, | |
79a45b7d | 1039 | const struct value_print_options *options) |
e79af960 JB |
1040 | { |
1041 | fprintf_filtered (stream, "["); | |
79a45b7d | 1042 | LA_VALUE_PRINT (index_value, stream, options); |
e79af960 JB |
1043 | fprintf_filtered (stream, "] = "); |
1044 | } | |
1045 | ||
c906108c SS |
1046 | /* Define the language that is no language. */ |
1047 | ||
1048 | static int | |
fba45db2 | 1049 | unk_lang_parser (void) |
c906108c SS |
1050 | { |
1051 | return 1; | |
1052 | } | |
1053 | ||
1054 | static void | |
fba45db2 | 1055 | unk_lang_error (char *msg) |
c906108c | 1056 | { |
8a3fe4f8 | 1057 | error (_("Attempted to parse an expression with unknown language")); |
c906108c SS |
1058 | } |
1059 | ||
1060 | static void | |
f86f5ca3 | 1061 | unk_lang_emit_char (int c, struct ui_file *stream, int quoter) |
c906108c | 1062 | { |
8a3fe4f8 | 1063 | error (_("internal error - unimplemented function unk_lang_emit_char called.")); |
c906108c SS |
1064 | } |
1065 | ||
1066 | static void | |
f86f5ca3 | 1067 | unk_lang_printchar (int c, struct ui_file *stream) |
c906108c | 1068 | { |
8a3fe4f8 | 1069 | error (_("internal error - unimplemented function unk_lang_printchar called.")); |
c906108c SS |
1070 | } |
1071 | ||
1072 | static void | |
fc1a4b47 | 1073 | unk_lang_printstr (struct ui_file *stream, const gdb_byte *string, |
79a45b7d TT |
1074 | unsigned int length, int width, int force_ellipses, |
1075 | const struct value_print_options *options) | |
c906108c | 1076 | { |
8a3fe4f8 | 1077 | error (_("internal error - unimplemented function unk_lang_printstr called.")); |
c906108c SS |
1078 | } |
1079 | ||
c906108c | 1080 | static void |
fba45db2 KB |
1081 | unk_lang_print_type (struct type *type, char *varstring, struct ui_file *stream, |
1082 | int show, int level) | |
c906108c | 1083 | { |
8a3fe4f8 | 1084 | error (_("internal error - unimplemented function unk_lang_print_type called.")); |
c906108c SS |
1085 | } |
1086 | ||
1087 | static int | |
fc1a4b47 | 1088 | unk_lang_val_print (struct type *type, const gdb_byte *valaddr, |
a2bd3dcd | 1089 | int embedded_offset, CORE_ADDR address, |
79a45b7d TT |
1090 | struct ui_file *stream, int recurse, |
1091 | const struct value_print_options *options) | |
c906108c | 1092 | { |
8a3fe4f8 | 1093 | error (_("internal error - unimplemented function unk_lang_val_print called.")); |
c906108c SS |
1094 | } |
1095 | ||
1096 | static int | |
79a45b7d TT |
1097 | unk_lang_value_print (struct value *val, struct ui_file *stream, |
1098 | const struct value_print_options *options) | |
c906108c | 1099 | { |
8a3fe4f8 | 1100 | error (_("internal error - unimplemented function unk_lang_value_print called.")); |
c906108c SS |
1101 | } |
1102 | ||
52f729a7 | 1103 | static CORE_ADDR unk_lang_trampoline (struct frame_info *frame, CORE_ADDR pc) |
f636b87d AF |
1104 | { |
1105 | return 0; | |
1106 | } | |
1107 | ||
9a3d7dfd AF |
1108 | /* Unknown languages just use the cplus demangler. */ |
1109 | static char *unk_lang_demangle (const char *mangled, int options) | |
1110 | { | |
1111 | return cplus_demangle (mangled, options); | |
1112 | } | |
1113 | ||
31c27f77 JJ |
1114 | static char *unk_lang_class_name (const char *mangled) |
1115 | { | |
1116 | return NULL; | |
1117 | } | |
9a3d7dfd | 1118 | |
c5aa993b JM |
1119 | static const struct op_print unk_op_print_tab[] = |
1120 | { | |
1121 | {NULL, OP_NULL, PREC_NULL, 0} | |
c906108c SS |
1122 | }; |
1123 | ||
f290d38e AC |
1124 | static void |
1125 | unknown_language_arch_info (struct gdbarch *gdbarch, | |
1126 | struct language_arch_info *lai) | |
1127 | { | |
1128 | lai->string_char_type = builtin_type (gdbarch)->builtin_char; | |
fbb06eb1 | 1129 | lai->bool_type_default = builtin_type (gdbarch)->builtin_int; |
5a44ea29 | 1130 | lai->primitive_type_vector = GDBARCH_OBSTACK_CALLOC (gdbarch, 1, |
f290d38e AC |
1131 | struct type *); |
1132 | } | |
1133 | ||
c5aa993b JM |
1134 | const struct language_defn unknown_language_defn = |
1135 | { | |
c906108c SS |
1136 | "unknown", |
1137 | language_unknown, | |
c906108c SS |
1138 | range_check_off, |
1139 | type_check_off, | |
63872f9d | 1140 | case_sensitive_on, |
9a044a89 TT |
1141 | array_row_major, |
1142 | macro_expansion_no, | |
5f9769d1 | 1143 | &exp_descriptor_standard, |
c906108c SS |
1144 | unk_lang_parser, |
1145 | unk_lang_error, | |
e85c3284 | 1146 | null_post_parser, |
c906108c SS |
1147 | unk_lang_printchar, /* Print character constant */ |
1148 | unk_lang_printstr, | |
1149 | unk_lang_emit_char, | |
c906108c | 1150 | unk_lang_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 1151 | default_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
1152 | unk_lang_val_print, /* Print a value using appropriate syntax */ |
1153 | unk_lang_value_print, /* Print a top-level value */ | |
f636b87d | 1154 | unk_lang_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 1155 | "this", /* name_of_this */ |
5f9a71c3 | 1156 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 1157 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 1158 | unk_lang_demangle, /* Language specific symbol demangler */ |
31c27f77 | 1159 | unk_lang_class_name, /* Language specific class_name_from_physname */ |
c906108c SS |
1160 | unk_op_print_tab, /* expression operators for printing */ |
1161 | 1, /* c-style arrays */ | |
1162 | 0, /* String lower bound */ | |
6084f43a | 1163 | default_word_break_characters, |
41d27058 | 1164 | default_make_symbol_completion_list, |
f290d38e | 1165 | unknown_language_arch_info, /* la_language_arch_info. */ |
e79af960 | 1166 | default_print_array_index, |
41f1b697 | 1167 | default_pass_by_reference, |
c906108c SS |
1168 | LANG_MAGIC |
1169 | }; | |
1170 | ||
1171 | /* These two structs define fake entries for the "local" and "auto" options. */ | |
c5aa993b JM |
1172 | const struct language_defn auto_language_defn = |
1173 | { | |
c906108c SS |
1174 | "auto", |
1175 | language_auto, | |
c906108c SS |
1176 | range_check_off, |
1177 | type_check_off, | |
63872f9d | 1178 | case_sensitive_on, |
9a044a89 TT |
1179 | array_row_major, |
1180 | macro_expansion_no, | |
5f9769d1 | 1181 | &exp_descriptor_standard, |
c906108c SS |
1182 | unk_lang_parser, |
1183 | unk_lang_error, | |
e85c3284 | 1184 | null_post_parser, |
c906108c SS |
1185 | unk_lang_printchar, /* Print character constant */ |
1186 | unk_lang_printstr, | |
1187 | unk_lang_emit_char, | |
c906108c | 1188 | unk_lang_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 1189 | default_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
1190 | unk_lang_val_print, /* Print a value using appropriate syntax */ |
1191 | unk_lang_value_print, /* Print a top-level value */ | |
f636b87d | 1192 | unk_lang_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 1193 | "this", /* name_of_this */ |
5f9a71c3 | 1194 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 1195 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 1196 | unk_lang_demangle, /* Language specific symbol demangler */ |
31c27f77 | 1197 | unk_lang_class_name, /* Language specific class_name_from_physname */ |
c906108c SS |
1198 | unk_op_print_tab, /* expression operators for printing */ |
1199 | 1, /* c-style arrays */ | |
1200 | 0, /* String lower bound */ | |
6084f43a | 1201 | default_word_break_characters, |
41d27058 | 1202 | default_make_symbol_completion_list, |
f290d38e | 1203 | unknown_language_arch_info, /* la_language_arch_info. */ |
e79af960 | 1204 | default_print_array_index, |
41f1b697 | 1205 | default_pass_by_reference, |
c906108c SS |
1206 | LANG_MAGIC |
1207 | }; | |
1208 | ||
c5aa993b JM |
1209 | const struct language_defn local_language_defn = |
1210 | { | |
c906108c SS |
1211 | "local", |
1212 | language_auto, | |
c906108c SS |
1213 | range_check_off, |
1214 | type_check_off, | |
63872f9d | 1215 | case_sensitive_on, |
7ca2d3a3 | 1216 | array_row_major, |
9a044a89 | 1217 | macro_expansion_no, |
5f9769d1 | 1218 | &exp_descriptor_standard, |
c906108c SS |
1219 | unk_lang_parser, |
1220 | unk_lang_error, | |
e85c3284 | 1221 | null_post_parser, |
c906108c SS |
1222 | unk_lang_printchar, /* Print character constant */ |
1223 | unk_lang_printstr, | |
1224 | unk_lang_emit_char, | |
c906108c | 1225 | unk_lang_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 1226 | default_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c SS |
1227 | unk_lang_val_print, /* Print a value using appropriate syntax */ |
1228 | unk_lang_value_print, /* Print a top-level value */ | |
f636b87d | 1229 | unk_lang_trampoline, /* Language specific skip_trampoline */ |
2b2d9e11 | 1230 | "this", /* name_of_this */ |
5f9a71c3 | 1231 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 1232 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 1233 | unk_lang_demangle, /* Language specific symbol demangler */ |
31c27f77 | 1234 | unk_lang_class_name, /* Language specific 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, |
c906108c SS |
1243 | LANG_MAGIC |
1244 | }; | |
1245 | \f | |
f290d38e AC |
1246 | /* Per-architecture language information. */ |
1247 | ||
1248 | static struct gdbarch_data *language_gdbarch_data; | |
1249 | ||
1250 | struct language_gdbarch | |
1251 | { | |
1252 | /* A vector of per-language per-architecture info. Indexed by "enum | |
1253 | language". */ | |
1254 | struct language_arch_info arch_info[nr_languages]; | |
1255 | }; | |
1256 | ||
1257 | static void * | |
1258 | language_gdbarch_post_init (struct gdbarch *gdbarch) | |
1259 | { | |
1260 | struct language_gdbarch *l; | |
1261 | int i; | |
1262 | ||
1263 | l = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct language_gdbarch); | |
1285b746 | 1264 | for (i = 0; i < languages_size; i++) |
f290d38e AC |
1265 | { |
1266 | if (languages[i] != NULL | |
1267 | && languages[i]->la_language_arch_info != NULL) | |
1268 | languages[i]->la_language_arch_info | |
1269 | (gdbarch, l->arch_info + languages[i]->la_language); | |
1270 | } | |
1271 | return l; | |
1272 | } | |
1273 | ||
1274 | struct type * | |
1275 | language_string_char_type (const struct language_defn *la, | |
1276 | struct gdbarch *gdbarch) | |
1277 | { | |
1278 | struct language_gdbarch *ld = gdbarch_data (gdbarch, | |
1279 | language_gdbarch_data); | |
aba2dd37 | 1280 | return ld->arch_info[la->la_language].string_char_type; |
f290d38e AC |
1281 | } |
1282 | ||
fbb06eb1 UW |
1283 | struct type * |
1284 | language_bool_type (const struct language_defn *la, | |
1285 | struct gdbarch *gdbarch) | |
1286 | { | |
1287 | struct language_gdbarch *ld = gdbarch_data (gdbarch, | |
1288 | language_gdbarch_data); | |
1289 | ||
1290 | if (ld->arch_info[la->la_language].bool_type_symbol) | |
1291 | { | |
1292 | struct symbol *sym; | |
1293 | sym = lookup_symbol (ld->arch_info[la->la_language].bool_type_symbol, | |
1294 | NULL, VAR_DOMAIN, NULL); | |
1295 | if (sym) | |
1296 | { | |
1297 | struct type *type = SYMBOL_TYPE (sym); | |
1298 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
1299 | return type; | |
1300 | } | |
1301 | } | |
1302 | ||
1303 | return ld->arch_info[la->la_language].bool_type_default; | |
1304 | } | |
1305 | ||
f290d38e | 1306 | struct type * |
5a44ea29 | 1307 | language_lookup_primitive_type_by_name (const struct language_defn *la, |
f290d38e AC |
1308 | struct gdbarch *gdbarch, |
1309 | const char *name) | |
1310 | { | |
1311 | struct language_gdbarch *ld = gdbarch_data (gdbarch, | |
1312 | language_gdbarch_data); | |
aba2dd37 UW |
1313 | struct type *const *p; |
1314 | for (p = ld->arch_info[la->la_language].primitive_type_vector; | |
1315 | (*p) != NULL; | |
1316 | p++) | |
f290d38e | 1317 | { |
aba2dd37 UW |
1318 | if (strcmp (TYPE_NAME (*p), name) == 0) |
1319 | return (*p); | |
f290d38e AC |
1320 | } |
1321 | return (NULL); | |
1322 | } | |
1323 | ||
c906108c SS |
1324 | /* Initialize the language routines */ |
1325 | ||
1326 | void | |
fba45db2 | 1327 | _initialize_language (void) |
c906108c | 1328 | { |
c5aa993b JM |
1329 | struct cmd_list_element *set, *show; |
1330 | ||
f290d38e AC |
1331 | language_gdbarch_data |
1332 | = gdbarch_data_register_post_init (language_gdbarch_post_init); | |
1333 | ||
c5aa993b JM |
1334 | /* GDB commands for language specific stuff */ |
1335 | ||
4d28ad1e AC |
1336 | /* FIXME: cagney/2005-02-20: This should be implemented using an |
1337 | enum. */ | |
1338 | add_setshow_string_noescape_cmd ("language", class_support, &language, _("\ | |
1339 | Set the current source language."), _("\ | |
1340 | Show the current source language."), NULL, | |
1341 | set_language_command, | |
1342 | show_language_command, | |
1343 | &setlist, &showlist); | |
c5aa993b JM |
1344 | |
1345 | add_prefix_cmd ("check", no_class, set_check, | |
1bedd215 | 1346 | _("Set the status of the type/range checker."), |
c5aa993b JM |
1347 | &setchecklist, "set check ", 0, &setlist); |
1348 | add_alias_cmd ("c", "check", no_class, 1, &setlist); | |
1349 | add_alias_cmd ("ch", "check", no_class, 1, &setlist); | |
1350 | ||
1351 | add_prefix_cmd ("check", no_class, show_check, | |
1bedd215 | 1352 | _("Show the status of the type/range checker."), |
c5aa993b JM |
1353 | &showchecklist, "show check ", 0, &showlist); |
1354 | add_alias_cmd ("c", "check", no_class, 1, &showlist); | |
1355 | add_alias_cmd ("ch", "check", no_class, 1, &showlist); | |
1356 | ||
4d28ad1e AC |
1357 | /* FIXME: cagney/2005-02-20: This should be implemented using an |
1358 | enum. */ | |
1359 | add_setshow_string_noescape_cmd ("type", class_support, &type, _("\ | |
1360 | Set type checking. (on/warn/off/auto)"), _("\ | |
1361 | Show type checking. (on/warn/off/auto)"), NULL, | |
1362 | set_type_command, | |
1363 | show_type_command, | |
1364 | &setchecklist, &showchecklist); | |
1365 | ||
1366 | /* FIXME: cagney/2005-02-20: This should be implemented using an | |
1367 | enum. */ | |
1368 | add_setshow_string_noescape_cmd ("range", class_support, &range, _("\ | |
1369 | Set range checking. (on/warn/off/auto)"), _("\ | |
1370 | Show range checking. (on/warn/off/auto)"), NULL, | |
1371 | set_range_command, | |
1372 | show_range_command, | |
1373 | &setchecklist, &showchecklist); | |
1374 | ||
1375 | /* FIXME: cagney/2005-02-20: This should be implemented using an | |
1376 | enum. */ | |
1377 | add_setshow_string_noescape_cmd ("case-sensitive", class_support, | |
1378 | &case_sensitive, _("\ | |
1379 | Set case sensitivity in name search. (on/off/auto)"), _("\ | |
1380 | Show case sensitivity in name search. (on/off/auto)"), _("\ | |
1381 | For Fortran the default is off; for other languages the default is on."), | |
1382 | set_case_command, | |
1383 | show_case_command, | |
1384 | &setlist, &showlist); | |
63872f9d | 1385 | |
c5aa993b JM |
1386 | add_language (&unknown_language_defn); |
1387 | add_language (&local_language_defn); | |
1388 | add_language (&auto_language_defn); | |
1389 | ||
1390 | language = savestring ("auto", strlen ("auto")); | |
ed9a39eb | 1391 | type = savestring ("auto", strlen ("auto")); |
ed9a39eb | 1392 | range = savestring ("auto", strlen ("auto")); |
63872f9d JG |
1393 | case_sensitive = savestring ("auto",strlen ("auto")); |
1394 | ||
1395 | /* Have the above take effect */ | |
1396 | set_language (language_auto); | |
c906108c | 1397 | } |