Commit | Line | Data |
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c906108c | 1 | /* Multiple source language support for GDB. |
1bac305b | 2 | |
6aba47ca DJ |
3 | Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, |
4 | 2002, 2003, 2004, 2005, 2007 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" |
c906108c | 46 | |
a14ed312 | 47 | extern void _initialize_language (void); |
392a587b | 48 | |
63872f9d JG |
49 | static void set_case_str (void); |
50 | ||
a14ed312 | 51 | static void set_range_str (void); |
c906108c | 52 | |
a14ed312 | 53 | static void set_type_str (void); |
c906108c | 54 | |
a14ed312 | 55 | static void set_lang_str (void); |
c906108c | 56 | |
a14ed312 | 57 | static void unk_lang_error (char *); |
c906108c | 58 | |
a14ed312 | 59 | static int unk_lang_parser (void); |
c906108c | 60 | |
a14ed312 | 61 | static void show_check (char *, int); |
c906108c | 62 | |
a14ed312 | 63 | static void set_check (char *, int); |
c906108c | 64 | |
63872f9d | 65 | static void set_type_range_case (void); |
c906108c | 66 | |
d9fcf2fb | 67 | static void unk_lang_emit_char (int c, struct ui_file *stream, int quoter); |
c906108c | 68 | |
d9fcf2fb | 69 | static void unk_lang_printchar (int c, struct ui_file *stream); |
c906108c | 70 | |
d9fcf2fb JM |
71 | static void unk_lang_print_type (struct type *, char *, struct ui_file *, |
72 | int, int); | |
c906108c | 73 | |
3d6d86c6 | 74 | static int unk_lang_value_print (struct value *, struct ui_file *, int, enum val_prettyprint); |
c906108c | 75 | |
52f729a7 | 76 | static CORE_ADDR unk_lang_trampoline (struct frame_info *, CORE_ADDR pc); |
f636b87d | 77 | |
c906108c SS |
78 | /* Forward declaration */ |
79 | extern const struct language_defn unknown_language_defn; | |
c5aa993b | 80 | |
c906108c | 81 | /* The current (default at startup) state of type and range checking. |
c5aa993b JM |
82 | (If the modes are set to "auto", though, these are changed based |
83 | on the default language at startup, and then again based on the | |
84 | language of the first source file. */ | |
c906108c SS |
85 | |
86 | enum range_mode range_mode = range_mode_auto; | |
87 | enum range_check range_check = range_check_off; | |
88 | enum type_mode type_mode = type_mode_auto; | |
89 | enum type_check type_check = type_check_off; | |
63872f9d JG |
90 | enum case_mode case_mode = case_mode_auto; |
91 | enum case_sensitivity case_sensitivity = case_sensitive_on; | |
c906108c SS |
92 | |
93 | /* The current language and language_mode (see language.h) */ | |
94 | ||
95 | const struct language_defn *current_language = &unknown_language_defn; | |
96 | enum language_mode language_mode = language_mode_auto; | |
97 | ||
98 | /* The language that the user expects to be typing in (the language | |
99 | of main(), or the last language we notified them about, or C). */ | |
100 | ||
101 | const struct language_defn *expected_language; | |
102 | ||
103 | /* The list of supported languages. The list itself is malloc'd. */ | |
104 | ||
105 | static const struct language_defn **languages; | |
106 | static unsigned languages_size; | |
107 | static unsigned languages_allocsize; | |
108 | #define DEFAULT_ALLOCSIZE 4 | |
109 | ||
110 | /* The "set language/type/range" commands all put stuff in these | |
111 | buffers. This is to make them work as set/show commands. The | |
112 | user's string is copied here, then the set_* commands look at | |
113 | them and update them to something that looks nice when it is | |
114 | printed out. */ | |
115 | ||
116 | static char *language; | |
117 | static char *type; | |
118 | static char *range; | |
63872f9d | 119 | static char *case_sensitive; |
c906108c SS |
120 | |
121 | /* Warning issued when current_language and the language of the current | |
122 | frame do not match. */ | |
123 | char lang_frame_mismatch_warn[] = | |
c5aa993b | 124 | "Warning: the current language does not match this frame."; |
c906108c SS |
125 | \f |
126 | /* This page contains the functions corresponding to GDB commands | |
127 | and their helpers. */ | |
128 | ||
129 | /* Show command. Display a warning if the language set | |
130 | does not match the frame. */ | |
131 | static void | |
4d28ad1e AC |
132 | show_language_command (struct ui_file *file, int from_tty, |
133 | struct cmd_list_element *c, const char *value) | |
c906108c | 134 | { |
c5aa993b | 135 | enum language flang; /* The language of the current frame */ |
c906108c | 136 | |
4d28ad1e | 137 | deprecated_show_value_hack (file, from_tty, c, value); |
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 SS |
148 | { |
149 | int i; | |
150 | enum language flang; | |
151 | char *err_lang; | |
152 | ||
153 | if (!language || !language[0]) | |
154 | { | |
a3f17187 AC |
155 | printf_unfiltered (_("\ |
156 | The currently understood settings are:\n\n\ | |
157 | local or auto Automatic setting based on source file\n")); | |
c906108c SS |
158 | |
159 | for (i = 0; i < languages_size; ++i) | |
160 | { | |
161 | /* Already dealt with these above. */ | |
162 | if (languages[i]->la_language == language_unknown | |
163 | || languages[i]->la_language == language_auto) | |
164 | continue; | |
165 | ||
a3f17187 AC |
166 | /* FIXME: i18n: for now assume that the human-readable name |
167 | is just a capitalization of the internal name. */ | |
c906108c SS |
168 | printf_unfiltered ("%-16s Use the %c%s language\n", |
169 | languages[i]->la_name, | |
c5aa993b JM |
170 | /* Capitalize first letter of language |
171 | name. */ | |
c906108c SS |
172 | toupper (languages[i]->la_name[0]), |
173 | languages[i]->la_name + 1); | |
174 | } | |
175 | /* Restore the silly string. */ | |
c5aa993b | 176 | set_language (current_language->la_language); |
c906108c SS |
177 | return; |
178 | } | |
179 | ||
180 | /* Search the list of languages for a match. */ | |
c5aa993b JM |
181 | for (i = 0; i < languages_size; i++) |
182 | { | |
6314a349 | 183 | if (strcmp (languages[i]->la_name, language) == 0) |
c5aa993b JM |
184 | { |
185 | /* Found it! Go into manual mode, and use this language. */ | |
186 | if (languages[i]->la_language == language_auto) | |
187 | { | |
188 | /* Enter auto mode. Set to the current frame's language, if known. */ | |
189 | language_mode = language_mode_auto; | |
190 | flang = get_frame_language (); | |
191 | if (flang != language_unknown) | |
192 | set_language (flang); | |
193 | expected_language = current_language; | |
194 | return; | |
195 | } | |
196 | else | |
197 | { | |
198 | /* Enter manual mode. Set the specified language. */ | |
199 | language_mode = language_mode_manual; | |
200 | current_language = languages[i]; | |
63872f9d | 201 | set_type_range_case (); |
c5aa993b JM |
202 | set_lang_str (); |
203 | expected_language = current_language; | |
204 | return; | |
205 | } | |
206 | } | |
c906108c | 207 | } |
c906108c SS |
208 | |
209 | /* Reset the language (esp. the global string "language") to the | |
210 | correct values. */ | |
c5aa993b | 211 | err_lang = savestring (language, strlen (language)); |
b8c9b27d | 212 | make_cleanup (xfree, err_lang); /* Free it after error */ |
c5aa993b | 213 | set_language (current_language->la_language); |
8a3fe4f8 | 214 | error (_("Unknown language `%s'."), err_lang); |
c906108c SS |
215 | } |
216 | ||
217 | /* Show command. Display a warning if the type setting does | |
218 | not match the current language. */ | |
219 | static void | |
4d28ad1e AC |
220 | show_type_command (struct ui_file *file, int from_tty, |
221 | struct cmd_list_element *c, const char *value) | |
c906108c | 222 | { |
4d28ad1e | 223 | deprecated_show_value_hack (file, from_tty, c, value); |
c5aa993b JM |
224 | if (type_check != current_language->la_type_check) |
225 | printf_unfiltered ( | |
226 | "Warning: the current type check setting does not match the language.\n"); | |
c906108c SS |
227 | } |
228 | ||
229 | /* Set command. Change the setting for type checking. */ | |
230 | static void | |
4d28ad1e | 231 | set_type_command (char *ignore, int from_tty, struct cmd_list_element *c) |
c906108c | 232 | { |
6314a349 | 233 | if (strcmp (type, "on") == 0) |
c5aa993b | 234 | { |
c906108c SS |
235 | type_check = type_check_on; |
236 | type_mode = type_mode_manual; | |
c5aa993b | 237 | } |
6314a349 | 238 | else if (strcmp (type, "warn") == 0) |
c5aa993b | 239 | { |
c906108c SS |
240 | type_check = type_check_warn; |
241 | type_mode = type_mode_manual; | |
c5aa993b | 242 | } |
6314a349 | 243 | else if (strcmp (type, "off") == 0) |
c5aa993b | 244 | { |
c906108c SS |
245 | type_check = type_check_off; |
246 | type_mode = type_mode_manual; | |
c5aa993b | 247 | } |
6314a349 | 248 | else if (strcmp (type, "auto") == 0) |
c5aa993b | 249 | { |
c906108c | 250 | type_mode = type_mode_auto; |
63872f9d | 251 | set_type_range_case (); |
c906108c | 252 | /* Avoid hitting the set_type_str call below. We |
63872f9d | 253 | did it in set_type_range_case. */ |
c906108c | 254 | return; |
c5aa993b | 255 | } |
c4093a6a JM |
256 | else |
257 | { | |
8a3fe4f8 | 258 | warning (_("Unrecognized type check setting: \"%s\""), type); |
c4093a6a | 259 | } |
c5aa993b | 260 | set_type_str (); |
4d28ad1e | 261 | show_type_command (NULL, from_tty, NULL, NULL); |
c906108c SS |
262 | } |
263 | ||
264 | /* Show command. Display a warning if the range setting does | |
265 | not match the current language. */ | |
266 | static void | |
4d28ad1e AC |
267 | show_range_command (struct ui_file *file, int from_tty, |
268 | struct cmd_list_element *c, const char *value) | |
c906108c | 269 | { |
4d28ad1e | 270 | deprecated_show_value_hack (file, from_tty, c, value); |
c5aa993b JM |
271 | if (range_check != current_language->la_range_check) |
272 | printf_unfiltered ( | |
273 | "Warning: the current range check setting does not match the language.\n"); | |
c906108c SS |
274 | } |
275 | ||
276 | /* Set command. Change the setting for range checking. */ | |
277 | static void | |
4d28ad1e | 278 | set_range_command (char *ignore, int from_tty, struct cmd_list_element *c) |
c906108c | 279 | { |
6314a349 | 280 | if (strcmp (range, "on") == 0) |
c5aa993b | 281 | { |
c906108c SS |
282 | range_check = range_check_on; |
283 | range_mode = range_mode_manual; | |
c5aa993b | 284 | } |
6314a349 | 285 | else if (strcmp (range, "warn") == 0) |
c5aa993b | 286 | { |
c906108c SS |
287 | range_check = range_check_warn; |
288 | range_mode = range_mode_manual; | |
c5aa993b | 289 | } |
6314a349 | 290 | else if (strcmp (range, "off") == 0) |
c5aa993b | 291 | { |
c906108c SS |
292 | range_check = range_check_off; |
293 | range_mode = range_mode_manual; | |
c5aa993b | 294 | } |
6314a349 | 295 | else if (strcmp (range, "auto") == 0) |
c5aa993b | 296 | { |
c906108c | 297 | range_mode = range_mode_auto; |
63872f9d | 298 | set_type_range_case (); |
c906108c | 299 | /* Avoid hitting the set_range_str call below. We |
63872f9d | 300 | did it in set_type_range_case. */ |
c906108c | 301 | return; |
c5aa993b | 302 | } |
c4093a6a JM |
303 | else |
304 | { | |
8a3fe4f8 | 305 | warning (_("Unrecognized range check setting: \"%s\""), range); |
c4093a6a | 306 | } |
c5aa993b | 307 | set_range_str (); |
4d28ad1e | 308 | show_range_command (NULL, from_tty, NULL, NULL); |
c906108c SS |
309 | } |
310 | ||
63872f9d JG |
311 | /* Show command. Display a warning if the case sensitivity setting does |
312 | not match the current language. */ | |
313 | static void | |
4d28ad1e AC |
314 | show_case_command (struct ui_file *file, int from_tty, |
315 | struct cmd_list_element *c, const char *value) | |
63872f9d | 316 | { |
4d28ad1e AC |
317 | deprecated_show_value_hack (file, from_tty, c, value); |
318 | if (case_sensitivity != current_language->la_case_sensitivity) | |
319 | printf_unfiltered( | |
63872f9d JG |
320 | "Warning: the current case sensitivity setting does not match the language.\n"); |
321 | } | |
322 | ||
591e78ff MK |
323 | /* Set command. Change the setting for case sensitivity. */ |
324 | ||
63872f9d | 325 | static void |
4d28ad1e | 326 | set_case_command (char *ignore, int from_tty, struct cmd_list_element *c) |
63872f9d | 327 | { |
591e78ff MK |
328 | if (strcmp (case_sensitive, "on") == 0) |
329 | { | |
330 | case_sensitivity = case_sensitive_on; | |
331 | case_mode = case_mode_manual; | |
332 | } | |
333 | else if (strcmp (case_sensitive, "off") == 0) | |
334 | { | |
335 | case_sensitivity = case_sensitive_off; | |
336 | case_mode = case_mode_manual; | |
337 | } | |
338 | else if (strcmp (case_sensitive, "auto") == 0) | |
339 | { | |
340 | case_mode = case_mode_auto; | |
341 | set_type_range_case (); | |
342 | /* Avoid hitting the set_case_str call below. We did it in | |
343 | set_type_range_case. */ | |
344 | return; | |
345 | } | |
63872f9d | 346 | else |
591e78ff MK |
347 | { |
348 | warning (_("Unrecognized case-sensitive setting: \"%s\""), | |
349 | case_sensitive); | |
350 | } | |
63872f9d | 351 | set_case_str(); |
4d28ad1e | 352 | show_case_command (NULL, from_tty, NULL, NULL); |
63872f9d JG |
353 | } |
354 | ||
355 | /* Set the status of range and type checking and case sensitivity based on | |
c906108c SS |
356 | the current modes and the current language. |
357 | If SHOW is non-zero, then print out the current language, | |
358 | type and range checking status. */ | |
359 | static void | |
63872f9d | 360 | set_type_range_case (void) |
c906108c SS |
361 | { |
362 | ||
363 | if (range_mode == range_mode_auto) | |
364 | range_check = current_language->la_range_check; | |
365 | ||
366 | if (type_mode == type_mode_auto) | |
367 | type_check = current_language->la_type_check; | |
368 | ||
63872f9d JG |
369 | if (case_mode == case_mode_auto) |
370 | case_sensitivity = current_language->la_case_sensitivity; | |
371 | ||
c5aa993b JM |
372 | set_type_str (); |
373 | set_range_str (); | |
63872f9d | 374 | set_case_str (); |
c906108c SS |
375 | } |
376 | ||
377 | /* Set current language to (enum language) LANG. Returns previous language. */ | |
378 | ||
379 | enum language | |
fba45db2 | 380 | set_language (enum language lang) |
c906108c SS |
381 | { |
382 | int i; | |
383 | enum language prev_language; | |
384 | ||
385 | prev_language = current_language->la_language; | |
386 | ||
c5aa993b JM |
387 | for (i = 0; i < languages_size; i++) |
388 | { | |
389 | if (languages[i]->la_language == lang) | |
390 | { | |
391 | current_language = languages[i]; | |
63872f9d | 392 | set_type_range_case (); |
c5aa993b JM |
393 | set_lang_str (); |
394 | break; | |
395 | } | |
c906108c | 396 | } |
c906108c SS |
397 | |
398 | return prev_language; | |
399 | } | |
400 | \f | |
401 | /* This page contains functions that update the global vars | |
402 | language, type and range. */ | |
403 | static void | |
fba45db2 | 404 | set_lang_str (void) |
c906108c | 405 | { |
c5aa993b | 406 | char *prefix = ""; |
c906108c | 407 | |
ccdaf797 | 408 | if (language) |
b8c9b27d | 409 | xfree (language); |
c5aa993b JM |
410 | if (language_mode == language_mode_auto) |
411 | prefix = "auto; currently "; | |
c906108c | 412 | |
1754f103 | 413 | language = concat (prefix, current_language->la_name, (char *)NULL); |
c906108c SS |
414 | } |
415 | ||
416 | static void | |
fba45db2 | 417 | set_type_str (void) |
c906108c | 418 | { |
c4093a6a | 419 | char *tmp = NULL, *prefix = ""; |
c906108c | 420 | |
ccdaf797 | 421 | if (type) |
b8c9b27d | 422 | xfree (type); |
c5aa993b JM |
423 | if (type_mode == type_mode_auto) |
424 | prefix = "auto; currently "; | |
c906108c | 425 | |
c5aa993b JM |
426 | switch (type_check) |
427 | { | |
428 | case type_check_on: | |
c906108c SS |
429 | tmp = "on"; |
430 | break; | |
c5aa993b | 431 | case type_check_off: |
c906108c SS |
432 | tmp = "off"; |
433 | break; | |
c5aa993b | 434 | case type_check_warn: |
c906108c SS |
435 | tmp = "warn"; |
436 | break; | |
c5aa993b | 437 | default: |
8a3fe4f8 | 438 | error (_("Unrecognized type check setting.")); |
c5aa993b | 439 | } |
c906108c | 440 | |
1754f103 | 441 | type = concat (prefix, tmp, (char *)NULL); |
c906108c SS |
442 | } |
443 | ||
444 | static void | |
fba45db2 | 445 | set_range_str (void) |
c906108c | 446 | { |
c5aa993b | 447 | char *tmp, *pref = ""; |
c906108c | 448 | |
c5aa993b JM |
449 | if (range_mode == range_mode_auto) |
450 | pref = "auto; currently "; | |
c906108c | 451 | |
c5aa993b JM |
452 | switch (range_check) |
453 | { | |
454 | case range_check_on: | |
c906108c SS |
455 | tmp = "on"; |
456 | break; | |
c5aa993b | 457 | case range_check_off: |
c906108c SS |
458 | tmp = "off"; |
459 | break; | |
c5aa993b | 460 | case range_check_warn: |
c906108c SS |
461 | tmp = "warn"; |
462 | break; | |
c5aa993b | 463 | default: |
8a3fe4f8 | 464 | error (_("Unrecognized range check setting.")); |
c5aa993b | 465 | } |
c906108c | 466 | |
ccdaf797 | 467 | if (range) |
b8c9b27d | 468 | xfree (range); |
1754f103 | 469 | range = concat (pref, tmp, (char *)NULL); |
c906108c SS |
470 | } |
471 | ||
63872f9d | 472 | static void |
5ae5f592 | 473 | set_case_str (void) |
63872f9d JG |
474 | { |
475 | char *tmp = NULL, *prefix = ""; | |
476 | ||
477 | if (case_mode==case_mode_auto) | |
478 | prefix = "auto; currently "; | |
479 | ||
480 | switch (case_sensitivity) | |
481 | { | |
482 | case case_sensitive_on: | |
483 | tmp = "on"; | |
484 | break; | |
485 | case case_sensitive_off: | |
486 | tmp = "off"; | |
487 | break; | |
488 | default: | |
8a3fe4f8 | 489 | error (_("Unrecognized case-sensitive setting.")); |
63872f9d JG |
490 | } |
491 | ||
b8c9b27d | 492 | xfree (case_sensitive); |
1754f103 | 493 | case_sensitive = concat (prefix, tmp, (char *)NULL); |
63872f9d | 494 | } |
c906108c SS |
495 | |
496 | /* Print out the current language settings: language, range and | |
497 | type checking. If QUIETLY, print only what has changed. */ | |
498 | ||
499 | void | |
fba45db2 | 500 | language_info (int quietly) |
c906108c SS |
501 | { |
502 | if (quietly && expected_language == current_language) | |
503 | return; | |
504 | ||
505 | expected_language = current_language; | |
a3f17187 | 506 | printf_unfiltered (_("Current language: %s\n"), language); |
4d28ad1e | 507 | show_language_command (NULL, 1, NULL, NULL); |
c906108c SS |
508 | |
509 | if (!quietly) | |
510 | { | |
a3f17187 | 511 | printf_unfiltered (_("Type checking: %s\n"), type); |
4d28ad1e | 512 | show_type_command (NULL, 1, NULL, NULL); |
a3f17187 | 513 | printf_unfiltered (_("Range checking: %s\n"), range); |
4d28ad1e | 514 | show_range_command (NULL, 1, NULL, NULL); |
a3f17187 | 515 | printf_unfiltered (_("Case sensitivity: %s\n"), case_sensitive); |
4d28ad1e | 516 | show_case_command (NULL, 1, NULL, NULL); |
c906108c SS |
517 | } |
518 | } | |
519 | \f | |
520 | /* Return the result of a binary operation. */ | |
521 | ||
c5aa993b | 522 | #if 0 /* Currently unused */ |
c906108c SS |
523 | |
524 | struct type * | |
3d6d86c6 | 525 | binop_result_type (struct value *v1, struct value *v2) |
c906108c | 526 | { |
c5aa993b JM |
527 | int size, uns; |
528 | struct type *t1 = check_typedef (VALUE_TYPE (v1)); | |
529 | struct type *t2 = check_typedef (VALUE_TYPE (v2)); | |
530 | ||
531 | int l1 = TYPE_LENGTH (t1); | |
532 | int l2 = TYPE_LENGTH (t2); | |
533 | ||
534 | switch (current_language->la_language) | |
535 | { | |
536 | case language_c: | |
537 | case language_cplus: | |
eb392fbf | 538 | case language_objc: |
c5aa993b JM |
539 | if (TYPE_CODE (t1) == TYPE_CODE_FLT) |
540 | return TYPE_CODE (t2) == TYPE_CODE_FLT && l2 > l1 ? | |
541 | VALUE_TYPE (v2) : VALUE_TYPE (v1); | |
542 | else if (TYPE_CODE (t2) == TYPE_CODE_FLT) | |
543 | return TYPE_CODE (t1) == TYPE_CODE_FLT && l1 > l2 ? | |
544 | VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
545 | else if (TYPE_UNSIGNED (t1) && l1 > l2) | |
546 | return VALUE_TYPE (v1); | |
547 | else if (TYPE_UNSIGNED (t2) && l2 > l1) | |
548 | return VALUE_TYPE (v2); | |
549 | else /* Both are signed. Result is the longer type */ | |
550 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
c906108c | 551 | break; |
c5aa993b | 552 | case language_m2: |
c906108c | 553 | /* If we are doing type-checking, l1 should equal l2, so this is |
c5aa993b JM |
554 | not needed. */ |
555 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
c906108c | 556 | break; |
c5aa993b | 557 | } |
e2e0b3e5 | 558 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c5aa993b | 559 | return (struct type *) 0; /* For lint */ |
c906108c SS |
560 | } |
561 | ||
c5aa993b | 562 | #endif /* 0 */ |
c906108c SS |
563 | #if 0 |
564 | /* This page contains functions that are used in type/range checking. | |
565 | They all return zero if the type/range check fails. | |
566 | ||
567 | It is hoped that these will make extending GDB to parse different | |
568 | languages a little easier. These are primarily used in eval.c when | |
569 | evaluating expressions and making sure that their types are correct. | |
570 | Instead of having a mess of conjucted/disjuncted expressions in an "if", | |
571 | the ideas of type can be wrapped up in the following functions. | |
572 | ||
573 | Note that some of them are not currently dependent upon which language | |
574 | is currently being parsed. For example, floats are the same in | |
575 | C and Modula-2 (ie. the only floating point type has TYPE_CODE of | |
576 | TYPE_CODE_FLT), while booleans are different. */ | |
577 | ||
578 | /* Returns non-zero if its argument is a simple type. This is the same for | |
579 | both Modula-2 and for C. In the C case, TYPE_CODE_CHAR will never occur, | |
580 | and thus will never cause the failure of the test. */ | |
581 | int | |
fba45db2 | 582 | simple_type (struct type *type) |
c906108c SS |
583 | { |
584 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
585 | switch (TYPE_CODE (type)) |
586 | { | |
587 | case TYPE_CODE_INT: | |
588 | case TYPE_CODE_CHAR: | |
589 | case TYPE_CODE_ENUM: | |
590 | case TYPE_CODE_FLT: | |
591 | case TYPE_CODE_RANGE: | |
592 | case TYPE_CODE_BOOL: | |
593 | return 1; | |
c906108c | 594 | |
c5aa993b JM |
595 | default: |
596 | return 0; | |
597 | } | |
c906108c SS |
598 | } |
599 | ||
600 | /* Returns non-zero if its argument is of an ordered type. | |
601 | An ordered type is one in which the elements can be tested for the | |
602 | properties of "greater than", "less than", etc, or for which the | |
603 | operations "increment" or "decrement" make sense. */ | |
604 | int | |
fba45db2 | 605 | ordered_type (struct type *type) |
c906108c SS |
606 | { |
607 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
608 | switch (TYPE_CODE (type)) |
609 | { | |
610 | case TYPE_CODE_INT: | |
611 | case TYPE_CODE_CHAR: | |
612 | case TYPE_CODE_ENUM: | |
613 | case TYPE_CODE_FLT: | |
614 | case TYPE_CODE_RANGE: | |
615 | return 1; | |
c906108c | 616 | |
c5aa993b JM |
617 | default: |
618 | return 0; | |
619 | } | |
c906108c SS |
620 | } |
621 | ||
622 | /* Returns non-zero if the two types are the same */ | |
623 | int | |
fba45db2 | 624 | same_type (struct type *arg1, struct type *arg2) |
c906108c SS |
625 | { |
626 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
627 | if (structured_type (arg1) ? !structured_type (arg2) : structured_type (arg2)) |
628 | /* One is structured and one isn't */ | |
629 | return 0; | |
630 | else if (structured_type (arg1) && structured_type (arg2)) | |
631 | return arg1 == arg2; | |
632 | else if (numeric_type (arg1) && numeric_type (arg2)) | |
633 | return (TYPE_CODE (arg2) == TYPE_CODE (arg1)) && | |
634 | (TYPE_UNSIGNED (arg1) == TYPE_UNSIGNED (arg2)) | |
635 | ? 1 : 0; | |
636 | else | |
637 | return arg1 == arg2; | |
c906108c SS |
638 | } |
639 | ||
640 | /* Returns non-zero if the type is integral */ | |
641 | int | |
fba45db2 | 642 | integral_type (struct type *type) |
c906108c SS |
643 | { |
644 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
645 | switch (current_language->la_language) |
646 | { | |
647 | case language_c: | |
648 | case language_cplus: | |
eb392fbf | 649 | case language_objc: |
c5aa993b JM |
650 | return (TYPE_CODE (type) != TYPE_CODE_INT) && |
651 | (TYPE_CODE (type) != TYPE_CODE_ENUM) ? 0 : 1; | |
652 | case language_m2: | |
750ba382 | 653 | case language_pascal: |
c5aa993b | 654 | return TYPE_CODE (type) != TYPE_CODE_INT ? 0 : 1; |
c5aa993b | 655 | default: |
8a3fe4f8 | 656 | error (_("Language not supported.")); |
c5aa993b | 657 | } |
c906108c SS |
658 | } |
659 | ||
660 | /* Returns non-zero if the value is numeric */ | |
661 | int | |
fba45db2 | 662 | numeric_type (struct type *type) |
c906108c SS |
663 | { |
664 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
665 | switch (TYPE_CODE (type)) |
666 | { | |
667 | case TYPE_CODE_INT: | |
668 | case TYPE_CODE_FLT: | |
669 | return 1; | |
c906108c | 670 | |
c5aa993b JM |
671 | default: |
672 | return 0; | |
673 | } | |
c906108c SS |
674 | } |
675 | ||
676 | /* Returns non-zero if the value is a character type */ | |
677 | int | |
fba45db2 | 678 | character_type (struct type *type) |
c906108c SS |
679 | { |
680 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
681 | switch (current_language->la_language) |
682 | { | |
c5aa993b | 683 | case language_m2: |
750ba382 | 684 | case language_pascal: |
c5aa993b JM |
685 | return TYPE_CODE (type) != TYPE_CODE_CHAR ? 0 : 1; |
686 | ||
687 | case language_c: | |
688 | case language_cplus: | |
eb392fbf | 689 | case language_objc: |
c5aa993b JM |
690 | return (TYPE_CODE (type) == TYPE_CODE_INT) && |
691 | TYPE_LENGTH (type) == sizeof (char) | |
692 | ? 1 : 0; | |
693 | default: | |
c906108c | 694 | return (0); |
c5aa993b | 695 | } |
c906108c SS |
696 | } |
697 | ||
698 | /* Returns non-zero if the value is a string type */ | |
699 | int | |
fba45db2 | 700 | string_type (struct type *type) |
c906108c SS |
701 | { |
702 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
703 | switch (current_language->la_language) |
704 | { | |
c5aa993b | 705 | case language_m2: |
750ba382 | 706 | case language_pascal: |
c5aa993b JM |
707 | return TYPE_CODE (type) != TYPE_CODE_STRING ? 0 : 1; |
708 | ||
709 | case language_c: | |
710 | case language_cplus: | |
eb392fbf | 711 | case language_objc: |
c906108c SS |
712 | /* C does not have distinct string type. */ |
713 | return (0); | |
c5aa993b | 714 | default: |
c906108c | 715 | return (0); |
c5aa993b | 716 | } |
c906108c SS |
717 | } |
718 | ||
719 | /* Returns non-zero if the value is a boolean type */ | |
720 | int | |
fba45db2 | 721 | boolean_type (struct type *type) |
c906108c SS |
722 | { |
723 | CHECK_TYPEDEF (type); | |
724 | if (TYPE_CODE (type) == TYPE_CODE_BOOL) | |
725 | return 1; | |
c5aa993b | 726 | switch (current_language->la_language) |
c906108c SS |
727 | { |
728 | case language_c: | |
729 | case language_cplus: | |
eb392fbf | 730 | case language_objc: |
db034ac5 | 731 | /* Might be more cleanly handled by having a |
1b831c93 | 732 | TYPE_CODE_INT_NOT_BOOL for (the deleted) CHILL and such |
db034ac5 | 733 | languages, or a TYPE_CODE_INT_OR_BOOL for C. */ |
c906108c SS |
734 | if (TYPE_CODE (type) == TYPE_CODE_INT) |
735 | return 1; | |
c5aa993b | 736 | default: |
c906108c | 737 | break; |
c5aa993b | 738 | } |
c906108c SS |
739 | return 0; |
740 | } | |
741 | ||
742 | /* Returns non-zero if the value is a floating-point type */ | |
743 | int | |
fba45db2 | 744 | float_type (struct type *type) |
c906108c SS |
745 | { |
746 | CHECK_TYPEDEF (type); | |
c5aa993b | 747 | return TYPE_CODE (type) == TYPE_CODE_FLT; |
c906108c SS |
748 | } |
749 | ||
750 | /* Returns non-zero if the value is a pointer type */ | |
751 | int | |
fba45db2 | 752 | pointer_type (struct type *type) |
c906108c | 753 | { |
c5aa993b JM |
754 | return TYPE_CODE (type) == TYPE_CODE_PTR || |
755 | TYPE_CODE (type) == TYPE_CODE_REF; | |
c906108c SS |
756 | } |
757 | ||
758 | /* Returns non-zero if the value is a structured type */ | |
759 | int | |
fba45db2 | 760 | structured_type (struct type *type) |
c906108c SS |
761 | { |
762 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
763 | switch (current_language->la_language) |
764 | { | |
765 | case language_c: | |
766 | case language_cplus: | |
eb392fbf | 767 | case language_objc: |
c5aa993b JM |
768 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || |
769 | (TYPE_CODE (type) == TYPE_CODE_UNION) || | |
770 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
750ba382 PM |
771 | case language_pascal: |
772 | return (TYPE_CODE(type) == TYPE_CODE_STRUCT) || | |
773 | (TYPE_CODE(type) == TYPE_CODE_UNION) || | |
774 | (TYPE_CODE(type) == TYPE_CODE_SET) || | |
775 | (TYPE_CODE(type) == TYPE_CODE_ARRAY); | |
c5aa993b JM |
776 | case language_m2: |
777 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || | |
778 | (TYPE_CODE (type) == TYPE_CODE_SET) || | |
779 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
c5aa993b | 780 | default: |
c906108c | 781 | return (0); |
c5aa993b | 782 | } |
c906108c SS |
783 | } |
784 | #endif | |
785 | \f | |
786 | struct type * | |
fba45db2 | 787 | lang_bool_type (void) |
c906108c SS |
788 | { |
789 | struct symbol *sym; | |
790 | struct type *type; | |
c5aa993b | 791 | switch (current_language->la_language) |
c906108c | 792 | { |
c906108c | 793 | case language_fortran: |
176620f1 | 794 | sym = lookup_symbol ("logical", NULL, VAR_DOMAIN, NULL, NULL); |
c906108c SS |
795 | if (sym) |
796 | { | |
797 | type = SYMBOL_TYPE (sym); | |
798 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
799 | return type; | |
800 | } | |
801 | return builtin_type_f_logical_s2; | |
802 | case language_cplus: | |
750ba382 PM |
803 | case language_pascal: |
804 | if (current_language->la_language==language_cplus) | |
176620f1 | 805 | {sym = lookup_symbol ("bool", NULL, VAR_DOMAIN, NULL, NULL);} |
750ba382 | 806 | else |
176620f1 | 807 | {sym = lookup_symbol ("boolean", NULL, VAR_DOMAIN, NULL, NULL);} |
c906108c SS |
808 | if (sym) |
809 | { | |
810 | type = SYMBOL_TYPE (sym); | |
811 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
812 | return type; | |
813 | } | |
814 | return builtin_type_bool; | |
8caabe69 | 815 | case language_java: |
176620f1 | 816 | sym = lookup_symbol ("boolean", NULL, VAR_DOMAIN, NULL, NULL); |
8caabe69 AG |
817 | if (sym) |
818 | { | |
819 | type = SYMBOL_TYPE (sym); | |
820 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
821 | return type; | |
822 | } | |
823 | return java_boolean_type; | |
c906108c SS |
824 | default: |
825 | return builtin_type_int; | |
826 | } | |
827 | } | |
828 | \f | |
829 | /* This page contains functions that return info about | |
830 | (struct value) values used in GDB. */ | |
831 | ||
832 | /* Returns non-zero if the value VAL represents a true value. */ | |
833 | int | |
3d6d86c6 | 834 | value_true (struct value *val) |
c906108c SS |
835 | { |
836 | /* It is possible that we should have some sort of error if a non-boolean | |
837 | value is used in this context. Possibly dependent on some kind of | |
838 | "boolean-checking" option like range checking. But it should probably | |
839 | not depend on the language except insofar as is necessary to identify | |
840 | a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean | |
841 | should be an error, probably). */ | |
842 | return !value_logical_not (val); | |
843 | } | |
844 | \f | |
c906108c SS |
845 | /* This page contains functions for the printing out of |
846 | error messages that occur during type- and range- | |
847 | checking. */ | |
848 | ||
ddfe3c15 AC |
849 | /* These are called when a language fails a type- or range-check. The |
850 | first argument should be a printf()-style format string, and the | |
851 | rest of the arguments should be its arguments. If | |
852 | [type|range]_check is [type|range]_check_on, an error is printed; | |
853 | if [type|range]_check_warn, a warning; otherwise just the | |
854 | message. */ | |
c906108c SS |
855 | |
856 | void | |
ddfe3c15 | 857 | type_error (const char *string,...) |
c906108c | 858 | { |
c5aa993b | 859 | va_list args; |
c5aa993b | 860 | va_start (args, string); |
c906108c | 861 | |
ddfe3c15 AC |
862 | switch (type_check) |
863 | { | |
864 | case type_check_warn: | |
865 | vwarning (string, args); | |
866 | break; | |
867 | case type_check_on: | |
868 | verror (string, args); | |
869 | break; | |
870 | case type_check_off: | |
871 | /* FIXME: cagney/2002-01-30: Should this function print anything | |
872 | when type error is off? */ | |
873 | vfprintf_filtered (gdb_stderr, string, args); | |
874 | fprintf_filtered (gdb_stderr, "\n"); | |
875 | break; | |
876 | default: | |
e2e0b3e5 | 877 | internal_error (__FILE__, __LINE__, _("bad switch")); |
ddfe3c15 | 878 | } |
c5aa993b | 879 | va_end (args); |
c906108c SS |
880 | } |
881 | ||
882 | void | |
ddfe3c15 | 883 | range_error (const char *string,...) |
c906108c | 884 | { |
c5aa993b | 885 | va_list args; |
c5aa993b | 886 | va_start (args, string); |
c906108c | 887 | |
ddfe3c15 AC |
888 | switch (range_check) |
889 | { | |
890 | case range_check_warn: | |
891 | vwarning (string, args); | |
892 | break; | |
893 | case range_check_on: | |
894 | verror (string, args); | |
895 | break; | |
896 | case range_check_off: | |
897 | /* FIXME: cagney/2002-01-30: Should this function print anything | |
898 | when range error is off? */ | |
899 | vfprintf_filtered (gdb_stderr, string, args); | |
900 | fprintf_filtered (gdb_stderr, "\n"); | |
901 | break; | |
902 | default: | |
e2e0b3e5 | 903 | internal_error (__FILE__, __LINE__, _("bad switch")); |
ddfe3c15 | 904 | } |
c5aa993b | 905 | va_end (args); |
c906108c | 906 | } |
c906108c | 907 | \f |
c5aa993b | 908 | |
c906108c SS |
909 | /* This page contains miscellaneous functions */ |
910 | ||
911 | /* Return the language enum for a given language string. */ | |
912 | ||
913 | enum language | |
fba45db2 | 914 | language_enum (char *str) |
c906108c SS |
915 | { |
916 | int i; | |
917 | ||
c5aa993b | 918 | for (i = 0; i < languages_size; i++) |
591e78ff | 919 | if (strcmp (languages[i]->la_name, str) == 0) |
c906108c SS |
920 | return languages[i]->la_language; |
921 | ||
922 | return language_unknown; | |
923 | } | |
924 | ||
925 | /* Return the language struct for a given language enum. */ | |
926 | ||
927 | const struct language_defn * | |
fba45db2 | 928 | language_def (enum language lang) |
c906108c SS |
929 | { |
930 | int i; | |
931 | ||
c5aa993b JM |
932 | for (i = 0; i < languages_size; i++) |
933 | { | |
934 | if (languages[i]->la_language == lang) | |
935 | { | |
936 | return languages[i]; | |
937 | } | |
c906108c | 938 | } |
c906108c SS |
939 | return NULL; |
940 | } | |
941 | ||
942 | /* Return the language as a string */ | |
943 | char * | |
fba45db2 | 944 | language_str (enum language lang) |
c906108c SS |
945 | { |
946 | int i; | |
947 | ||
c5aa993b JM |
948 | for (i = 0; i < languages_size; i++) |
949 | { | |
950 | if (languages[i]->la_language == lang) | |
951 | { | |
952 | return languages[i]->la_name; | |
953 | } | |
c906108c | 954 | } |
c906108c SS |
955 | return "Unknown"; |
956 | } | |
957 | ||
958 | static void | |
fba45db2 | 959 | set_check (char *ignore, int from_tty) |
c906108c | 960 | { |
c5aa993b JM |
961 | printf_unfiltered ( |
962 | "\"set check\" must be followed by the name of a check subcommand.\n"); | |
963 | help_list (setchecklist, "set check ", -1, gdb_stdout); | |
c906108c SS |
964 | } |
965 | ||
966 | static void | |
fba45db2 | 967 | show_check (char *ignore, int from_tty) |
c906108c | 968 | { |
c5aa993b | 969 | cmd_show_list (showchecklist, from_tty, ""); |
c906108c SS |
970 | } |
971 | \f | |
972 | /* Add a language to the set of known languages. */ | |
973 | ||
974 | void | |
fba45db2 | 975 | add_language (const struct language_defn *lang) |
c906108c SS |
976 | { |
977 | if (lang->la_magic != LANG_MAGIC) | |
978 | { | |
c5aa993b JM |
979 | fprintf_unfiltered (gdb_stderr, "Magic number of %s language struct wrong\n", |
980 | lang->la_name); | |
e2e0b3e5 | 981 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
982 | } |
983 | ||
984 | if (!languages) | |
985 | { | |
986 | languages_allocsize = DEFAULT_ALLOCSIZE; | |
987 | languages = (const struct language_defn **) xmalloc | |
988 | (languages_allocsize * sizeof (*languages)); | |
989 | } | |
990 | if (languages_size >= languages_allocsize) | |
991 | { | |
992 | languages_allocsize *= 2; | |
993 | languages = (const struct language_defn **) xrealloc ((char *) languages, | |
c5aa993b | 994 | languages_allocsize * sizeof (*languages)); |
c906108c SS |
995 | } |
996 | languages[languages_size++] = lang; | |
997 | } | |
998 | ||
f636b87d AF |
999 | /* Iterate through all registered languages looking for and calling |
1000 | any non-NULL struct language_defn.skip_trampoline() functions. | |
1001 | Return the result from the first that returns non-zero, or 0 if all | |
1002 | `fail'. */ | |
1003 | CORE_ADDR | |
52f729a7 | 1004 | skip_language_trampoline (struct frame_info *frame, CORE_ADDR pc) |
f636b87d AF |
1005 | { |
1006 | int i; | |
1007 | ||
1008 | for (i = 0; i < languages_size; i++) | |
1009 | { | |
1010 | if (languages[i]->skip_trampoline) | |
1011 | { | |
52f729a7 | 1012 | CORE_ADDR real_pc = (languages[i]->skip_trampoline) (frame, pc); |
f636b87d AF |
1013 | if (real_pc) |
1014 | return real_pc; | |
1015 | } | |
1016 | } | |
1017 | ||
1018 | return 0; | |
1019 | } | |
1020 | ||
9a3d7dfd AF |
1021 | /* Return demangled language symbol, or NULL. |
1022 | FIXME: Options are only useful for certain languages and ignored | |
1023 | by others, so it would be better to remove them here and have a | |
1024 | more flexible demangler for the languages that need it. | |
1025 | FIXME: Sometimes the demangler is invoked when we don't know the | |
1026 | language, so we can't use this everywhere. */ | |
1027 | char * | |
1028 | language_demangle (const struct language_defn *current_language, | |
1029 | const char *mangled, int options) | |
1030 | { | |
1031 | if (current_language != NULL && current_language->la_demangle) | |
1032 | return current_language->la_demangle (mangled, options); | |
1033 | return NULL; | |
1034 | } | |
1035 | ||
31c27f77 JJ |
1036 | /* Return class name from physname or NULL. */ |
1037 | char * | |
1038 | language_class_name_from_physname (const struct language_defn *current_language, | |
1039 | const char *physname) | |
1040 | { | |
1041 | if (current_language != NULL && current_language->la_class_name_from_physname) | |
1042 | return current_language->la_class_name_from_physname (physname); | |
1043 | return NULL; | |
1044 | } | |
1045 | ||
41f1b697 DJ |
1046 | /* Return non-zero if TYPE should be passed (and returned) by |
1047 | reference at the language level. */ | |
1048 | int | |
1049 | language_pass_by_reference (struct type *type) | |
1050 | { | |
1051 | return current_language->la_pass_by_reference (type); | |
1052 | } | |
1053 | ||
1054 | /* Return zero; by default, types are passed by value at the language | |
1055 | level. The target ABI may pass or return some structs by reference | |
1056 | independent of this. */ | |
1057 | int | |
1058 | default_pass_by_reference (struct type *type) | |
1059 | { | |
1060 | return 0; | |
1061 | } | |
1062 | ||
9f0a5303 JB |
1063 | /* Return the default string containing the list of characters |
1064 | delimiting words. This is a reasonable default value that | |
1065 | most languages should be able to use. */ | |
1066 | ||
1067 | char * | |
1068 | default_word_break_characters (void) | |
1069 | { | |
1070 | return " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-"; | |
1071 | } | |
f636b87d | 1072 | |
e79af960 JB |
1073 | /* Print the index of array elements using the C99 syntax. */ |
1074 | ||
1075 | void | |
1076 | default_print_array_index (struct value *index_value, struct ui_file *stream, | |
1077 | int format, enum val_prettyprint pretty) | |
1078 | { | |
1079 | fprintf_filtered (stream, "["); | |
1080 | LA_VALUE_PRINT (index_value, stream, format, pretty); | |
1081 | fprintf_filtered (stream, "] = "); | |
1082 | } | |
1083 | ||
c906108c SS |
1084 | /* Define the language that is no language. */ |
1085 | ||
1086 | static int | |
fba45db2 | 1087 | unk_lang_parser (void) |
c906108c SS |
1088 | { |
1089 | return 1; | |
1090 | } | |
1091 | ||
1092 | static void | |
fba45db2 | 1093 | unk_lang_error (char *msg) |
c906108c | 1094 | { |
8a3fe4f8 | 1095 | error (_("Attempted to parse an expression with unknown language")); |
c906108c SS |
1096 | } |
1097 | ||
1098 | static void | |
f86f5ca3 | 1099 | unk_lang_emit_char (int c, struct ui_file *stream, int quoter) |
c906108c | 1100 | { |
8a3fe4f8 | 1101 | error (_("internal error - unimplemented function unk_lang_emit_char called.")); |
c906108c SS |
1102 | } |
1103 | ||
1104 | static void | |
f86f5ca3 | 1105 | unk_lang_printchar (int c, struct ui_file *stream) |
c906108c | 1106 | { |
8a3fe4f8 | 1107 | error (_("internal error - unimplemented function unk_lang_printchar called.")); |
c906108c SS |
1108 | } |
1109 | ||
1110 | static void | |
fc1a4b47 | 1111 | unk_lang_printstr (struct ui_file *stream, const gdb_byte *string, |
ce27fb25 | 1112 | unsigned int length, int width, int force_ellipses) |
c906108c | 1113 | { |
8a3fe4f8 | 1114 | error (_("internal error - unimplemented function unk_lang_printstr called.")); |
c906108c SS |
1115 | } |
1116 | ||
c906108c | 1117 | static void |
fba45db2 KB |
1118 | unk_lang_print_type (struct type *type, char *varstring, struct ui_file *stream, |
1119 | int show, int level) | |
c906108c | 1120 | { |
8a3fe4f8 | 1121 | error (_("internal error - unimplemented function unk_lang_print_type called.")); |
c906108c SS |
1122 | } |
1123 | ||
1124 | static int | |
fc1a4b47 | 1125 | unk_lang_val_print (struct type *type, const gdb_byte *valaddr, |
a2bd3dcd AC |
1126 | int embedded_offset, CORE_ADDR address, |
1127 | struct ui_file *stream, int format, | |
fba45db2 | 1128 | int deref_ref, int recurse, enum val_prettyprint pretty) |
c906108c | 1129 | { |
8a3fe4f8 | 1130 | error (_("internal error - unimplemented function unk_lang_val_print called.")); |
c906108c SS |
1131 | } |
1132 | ||
1133 | static int | |
3d6d86c6 | 1134 | unk_lang_value_print (struct value *val, struct ui_file *stream, int format, |
fba45db2 | 1135 | enum val_prettyprint pretty) |
c906108c | 1136 | { |
8a3fe4f8 | 1137 | error (_("internal error - unimplemented function unk_lang_value_print called.")); |
c906108c SS |
1138 | } |
1139 | ||
52f729a7 | 1140 | static CORE_ADDR unk_lang_trampoline (struct frame_info *frame, CORE_ADDR pc) |
f636b87d AF |
1141 | { |
1142 | return 0; | |
1143 | } | |
1144 | ||
9a3d7dfd AF |
1145 | /* Unknown languages just use the cplus demangler. */ |
1146 | static char *unk_lang_demangle (const char *mangled, int options) | |
1147 | { | |
1148 | return cplus_demangle (mangled, options); | |
1149 | } | |
1150 | ||
31c27f77 JJ |
1151 | static char *unk_lang_class_name (const char *mangled) |
1152 | { | |
1153 | return NULL; | |
1154 | } | |
9a3d7dfd | 1155 | |
c5aa993b JM |
1156 | static const struct op_print unk_op_print_tab[] = |
1157 | { | |
1158 | {NULL, OP_NULL, PREC_NULL, 0} | |
c906108c SS |
1159 | }; |
1160 | ||
f290d38e AC |
1161 | static void |
1162 | unknown_language_arch_info (struct gdbarch *gdbarch, | |
1163 | struct language_arch_info *lai) | |
1164 | { | |
1165 | lai->string_char_type = builtin_type (gdbarch)->builtin_char; | |
5a44ea29 | 1166 | lai->primitive_type_vector = GDBARCH_OBSTACK_CALLOC (gdbarch, 1, |
f290d38e AC |
1167 | struct type *); |
1168 | } | |
1169 | ||
c5aa993b JM |
1170 | const struct language_defn unknown_language_defn = |
1171 | { | |
c906108c SS |
1172 | "unknown", |
1173 | language_unknown, | |
c906108c SS |
1174 | range_check_off, |
1175 | type_check_off, | |
7ca2d3a3 | 1176 | array_row_major, |
63872f9d | 1177 | case_sensitive_on, |
5f9769d1 | 1178 | &exp_descriptor_standard, |
c906108c SS |
1179 | unk_lang_parser, |
1180 | unk_lang_error, | |
e85c3284 | 1181 | null_post_parser, |
c906108c SS |
1182 | unk_lang_printchar, /* Print character constant */ |
1183 | unk_lang_printstr, | |
1184 | unk_lang_emit_char, | |
c906108c SS |
1185 | unk_lang_print_type, /* Print a type using appropriate syntax */ |
1186 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1187 | unk_lang_value_print, /* Print a top-level value */ | |
f636b87d | 1188 | unk_lang_trampoline, /* Language specific skip_trampoline */ |
5f9a71c3 DC |
1189 | value_of_this, /* value_of_this */ |
1190 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ | |
b368761e | 1191 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 1192 | unk_lang_demangle, /* Language specific symbol demangler */ |
31c27f77 | 1193 | unk_lang_class_name, /* Language specific class_name_from_physname */ |
c906108c SS |
1194 | unk_op_print_tab, /* expression operators for printing */ |
1195 | 1, /* c-style arrays */ | |
1196 | 0, /* String lower bound */ | |
6084f43a | 1197 | default_word_break_characters, |
f290d38e | 1198 | unknown_language_arch_info, /* la_language_arch_info. */ |
e79af960 | 1199 | default_print_array_index, |
41f1b697 | 1200 | default_pass_by_reference, |
c906108c SS |
1201 | LANG_MAGIC |
1202 | }; | |
1203 | ||
1204 | /* These two structs define fake entries for the "local" and "auto" options. */ | |
c5aa993b JM |
1205 | const struct language_defn auto_language_defn = |
1206 | { | |
c906108c SS |
1207 | "auto", |
1208 | language_auto, | |
c906108c SS |
1209 | range_check_off, |
1210 | type_check_off, | |
7ca2d3a3 | 1211 | array_row_major, |
63872f9d | 1212 | case_sensitive_on, |
5f9769d1 | 1213 | &exp_descriptor_standard, |
c906108c SS |
1214 | unk_lang_parser, |
1215 | unk_lang_error, | |
e85c3284 | 1216 | null_post_parser, |
c906108c SS |
1217 | unk_lang_printchar, /* Print character constant */ |
1218 | unk_lang_printstr, | |
1219 | unk_lang_emit_char, | |
c906108c SS |
1220 | unk_lang_print_type, /* Print a type using appropriate syntax */ |
1221 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1222 | unk_lang_value_print, /* Print a top-level value */ | |
f636b87d | 1223 | unk_lang_trampoline, /* Language specific skip_trampoline */ |
5f9a71c3 DC |
1224 | value_of_this, /* value_of_this */ |
1225 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ | |
b368761e | 1226 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 1227 | unk_lang_demangle, /* Language specific symbol demangler */ |
31c27f77 | 1228 | unk_lang_class_name, /* Language specific class_name_from_physname */ |
c906108c SS |
1229 | unk_op_print_tab, /* expression operators for printing */ |
1230 | 1, /* c-style arrays */ | |
1231 | 0, /* String lower bound */ | |
6084f43a | 1232 | default_word_break_characters, |
f290d38e | 1233 | unknown_language_arch_info, /* la_language_arch_info. */ |
e79af960 | 1234 | default_print_array_index, |
41f1b697 | 1235 | default_pass_by_reference, |
c906108c SS |
1236 | LANG_MAGIC |
1237 | }; | |
1238 | ||
c5aa993b JM |
1239 | const struct language_defn local_language_defn = |
1240 | { | |
c906108c SS |
1241 | "local", |
1242 | language_auto, | |
c906108c SS |
1243 | range_check_off, |
1244 | type_check_off, | |
63872f9d | 1245 | case_sensitive_on, |
7ca2d3a3 | 1246 | array_row_major, |
5f9769d1 | 1247 | &exp_descriptor_standard, |
c906108c SS |
1248 | unk_lang_parser, |
1249 | unk_lang_error, | |
e85c3284 | 1250 | null_post_parser, |
c906108c SS |
1251 | unk_lang_printchar, /* Print character constant */ |
1252 | unk_lang_printstr, | |
1253 | unk_lang_emit_char, | |
c906108c SS |
1254 | unk_lang_print_type, /* Print a type using appropriate syntax */ |
1255 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1256 | unk_lang_value_print, /* Print a top-level value */ | |
f636b87d | 1257 | unk_lang_trampoline, /* Language specific skip_trampoline */ |
5f9a71c3 DC |
1258 | value_of_this, /* value_of_this */ |
1259 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ | |
b368761e | 1260 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 1261 | unk_lang_demangle, /* Language specific symbol demangler */ |
31c27f77 | 1262 | unk_lang_class_name, /* Language specific class_name_from_physname */ |
c906108c SS |
1263 | unk_op_print_tab, /* expression operators for printing */ |
1264 | 1, /* c-style arrays */ | |
1265 | 0, /* String lower bound */ | |
6084f43a | 1266 | default_word_break_characters, |
f290d38e | 1267 | unknown_language_arch_info, /* la_language_arch_info. */ |
e79af960 | 1268 | default_print_array_index, |
41f1b697 | 1269 | default_pass_by_reference, |
c906108c SS |
1270 | LANG_MAGIC |
1271 | }; | |
1272 | \f | |
f290d38e AC |
1273 | /* Per-architecture language information. */ |
1274 | ||
1275 | static struct gdbarch_data *language_gdbarch_data; | |
1276 | ||
1277 | struct language_gdbarch | |
1278 | { | |
1279 | /* A vector of per-language per-architecture info. Indexed by "enum | |
1280 | language". */ | |
1281 | struct language_arch_info arch_info[nr_languages]; | |
1282 | }; | |
1283 | ||
1284 | static void * | |
1285 | language_gdbarch_post_init (struct gdbarch *gdbarch) | |
1286 | { | |
1287 | struct language_gdbarch *l; | |
1288 | int i; | |
1289 | ||
1290 | l = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct language_gdbarch); | |
1285b746 | 1291 | for (i = 0; i < languages_size; i++) |
f290d38e AC |
1292 | { |
1293 | if (languages[i] != NULL | |
1294 | && languages[i]->la_language_arch_info != NULL) | |
1295 | languages[i]->la_language_arch_info | |
1296 | (gdbarch, l->arch_info + languages[i]->la_language); | |
1297 | } | |
1298 | return l; | |
1299 | } | |
1300 | ||
1301 | struct type * | |
1302 | language_string_char_type (const struct language_defn *la, | |
1303 | struct gdbarch *gdbarch) | |
1304 | { | |
1305 | struct language_gdbarch *ld = gdbarch_data (gdbarch, | |
1306 | language_gdbarch_data); | |
aba2dd37 | 1307 | return ld->arch_info[la->la_language].string_char_type; |
f290d38e AC |
1308 | } |
1309 | ||
1310 | struct type * | |
5a44ea29 | 1311 | language_lookup_primitive_type_by_name (const struct language_defn *la, |
f290d38e AC |
1312 | struct gdbarch *gdbarch, |
1313 | const char *name) | |
1314 | { | |
1315 | struct language_gdbarch *ld = gdbarch_data (gdbarch, | |
1316 | language_gdbarch_data); | |
aba2dd37 UW |
1317 | struct type *const *p; |
1318 | for (p = ld->arch_info[la->la_language].primitive_type_vector; | |
1319 | (*p) != NULL; | |
1320 | p++) | |
f290d38e | 1321 | { |
aba2dd37 UW |
1322 | if (strcmp (TYPE_NAME (*p), name) == 0) |
1323 | return (*p); | |
f290d38e AC |
1324 | } |
1325 | return (NULL); | |
1326 | } | |
1327 | ||
c906108c SS |
1328 | /* Initialize the language routines */ |
1329 | ||
1330 | void | |
fba45db2 | 1331 | _initialize_language (void) |
c906108c | 1332 | { |
c5aa993b JM |
1333 | struct cmd_list_element *set, *show; |
1334 | ||
f290d38e AC |
1335 | language_gdbarch_data |
1336 | = gdbarch_data_register_post_init (language_gdbarch_post_init); | |
1337 | ||
c5aa993b JM |
1338 | /* GDB commands for language specific stuff */ |
1339 | ||
4d28ad1e AC |
1340 | /* FIXME: cagney/2005-02-20: This should be implemented using an |
1341 | enum. */ | |
1342 | add_setshow_string_noescape_cmd ("language", class_support, &language, _("\ | |
1343 | Set the current source language."), _("\ | |
1344 | Show the current source language."), NULL, | |
1345 | set_language_command, | |
1346 | show_language_command, | |
1347 | &setlist, &showlist); | |
c5aa993b JM |
1348 | |
1349 | add_prefix_cmd ("check", no_class, set_check, | |
1bedd215 | 1350 | _("Set the status of the type/range checker."), |
c5aa993b JM |
1351 | &setchecklist, "set check ", 0, &setlist); |
1352 | add_alias_cmd ("c", "check", no_class, 1, &setlist); | |
1353 | add_alias_cmd ("ch", "check", no_class, 1, &setlist); | |
1354 | ||
1355 | add_prefix_cmd ("check", no_class, show_check, | |
1bedd215 | 1356 | _("Show the status of the type/range checker."), |
c5aa993b JM |
1357 | &showchecklist, "show check ", 0, &showlist); |
1358 | add_alias_cmd ("c", "check", no_class, 1, &showlist); | |
1359 | add_alias_cmd ("ch", "check", no_class, 1, &showlist); | |
1360 | ||
4d28ad1e AC |
1361 | /* FIXME: cagney/2005-02-20: This should be implemented using an |
1362 | enum. */ | |
1363 | add_setshow_string_noescape_cmd ("type", class_support, &type, _("\ | |
1364 | Set type checking. (on/warn/off/auto)"), _("\ | |
1365 | Show type checking. (on/warn/off/auto)"), NULL, | |
1366 | set_type_command, | |
1367 | show_type_command, | |
1368 | &setchecklist, &showchecklist); | |
1369 | ||
1370 | /* FIXME: cagney/2005-02-20: This should be implemented using an | |
1371 | enum. */ | |
1372 | add_setshow_string_noescape_cmd ("range", class_support, &range, _("\ | |
1373 | Set range checking. (on/warn/off/auto)"), _("\ | |
1374 | Show range checking. (on/warn/off/auto)"), NULL, | |
1375 | set_range_command, | |
1376 | show_range_command, | |
1377 | &setchecklist, &showchecklist); | |
1378 | ||
1379 | /* FIXME: cagney/2005-02-20: This should be implemented using an | |
1380 | enum. */ | |
1381 | add_setshow_string_noescape_cmd ("case-sensitive", class_support, | |
1382 | &case_sensitive, _("\ | |
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."), | |
1386 | set_case_command, | |
1387 | show_case_command, | |
1388 | &setlist, &showlist); | |
63872f9d | 1389 | |
c5aa993b JM |
1390 | add_language (&unknown_language_defn); |
1391 | add_language (&local_language_defn); | |
1392 | add_language (&auto_language_defn); | |
1393 | ||
1394 | language = savestring ("auto", strlen ("auto")); | |
ed9a39eb | 1395 | type = savestring ("auto", strlen ("auto")); |
ed9a39eb | 1396 | range = savestring ("auto", strlen ("auto")); |
63872f9d JG |
1397 | case_sensitive = savestring ("auto",strlen ("auto")); |
1398 | ||
1399 | /* Have the above take effect */ | |
1400 | set_language (language_auto); | |
c906108c | 1401 | } |