Commit | Line | Data |
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c906108c | 1 | /* Multiple source language support for GDB. |
d9fcf2fb | 2 | Copyright 1991, 1992, 2000 Free Software Foundation, Inc. |
c906108c SS |
3 | Contributed by the Department of Computer Science at the State University |
4 | of New York at Buffalo. | |
5 | ||
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b JM |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
22 | |
23 | /* This file contains functions that return things that are specific | |
24 | to languages. Each function should examine current_language if necessary, | |
25 | and return the appropriate result. */ | |
26 | ||
27 | /* FIXME: Most of these would be better organized as macros which | |
28 | return data out of a "language-specific" struct pointer that is set | |
29 | whenever the working language changes. That would be a lot faster. */ | |
30 | ||
31 | #include "defs.h" | |
32 | #include <ctype.h> | |
33 | #include "gdb_string.h" | |
34 | ||
35 | #include "symtab.h" | |
36 | #include "gdbtypes.h" | |
37 | #include "value.h" | |
38 | #include "gdbcmd.h" | |
39 | #include "frame.h" | |
40 | #include "expression.h" | |
41 | #include "language.h" | |
42 | #include "target.h" | |
43 | #include "parser-defs.h" | |
44 | ||
392a587b JM |
45 | extern void _initialize_language PARAMS ((void)); |
46 | ||
c906108c SS |
47 | static void |
48 | show_language_command PARAMS ((char *, int)); | |
49 | ||
50 | static void | |
51 | set_language_command PARAMS ((char *, int)); | |
52 | ||
53 | static void | |
54 | show_type_command PARAMS ((char *, int)); | |
55 | ||
56 | static void | |
57 | set_type_command PARAMS ((char *, int)); | |
58 | ||
59 | static void | |
60 | show_range_command PARAMS ((char *, int)); | |
61 | ||
62 | static void | |
63 | set_range_command PARAMS ((char *, int)); | |
64 | ||
65 | static void | |
66 | set_range_str PARAMS ((void)); | |
67 | ||
68 | static void | |
69 | set_type_str PARAMS ((void)); | |
70 | ||
71 | static void | |
72 | set_lang_str PARAMS ((void)); | |
73 | ||
74 | static void | |
75 | unk_lang_error PARAMS ((char *)); | |
76 | ||
77 | static int | |
78 | unk_lang_parser PARAMS ((void)); | |
79 | ||
80 | static void | |
81 | show_check PARAMS ((char *, int)); | |
82 | ||
83 | static void | |
84 | set_check PARAMS ((char *, int)); | |
85 | ||
86 | static void | |
87 | set_type_range PARAMS ((void)); | |
88 | ||
d9fcf2fb | 89 | static void unk_lang_emit_char (int c, struct ui_file *stream, int quoter); |
c906108c | 90 | |
d9fcf2fb | 91 | static void unk_lang_printchar (int c, struct ui_file *stream); |
c906108c | 92 | |
d9fcf2fb JM |
93 | static void unk_lang_printstr (struct ui_file * stream, char *string, |
94 | unsigned int length, int width, | |
95 | int force_ellipses); | |
c906108c SS |
96 | |
97 | static struct type * | |
c5aa993b | 98 | unk_lang_create_fundamental_type PARAMS ((struct objfile *, int)); |
c906108c | 99 | |
d9fcf2fb JM |
100 | static void unk_lang_print_type (struct type *, char *, struct ui_file *, |
101 | int, int); | |
c906108c | 102 | |
d9fcf2fb JM |
103 | static int unk_lang_val_print (struct type *, char *, int, CORE_ADDR, |
104 | struct ui_file *, int, int, int, | |
105 | enum val_prettyprint); | |
c906108c | 106 | |
d9fcf2fb | 107 | static int unk_lang_value_print (value_ptr, struct ui_file *, int, enum val_prettyprint); |
c906108c SS |
108 | |
109 | /* Forward declaration */ | |
110 | extern const struct language_defn unknown_language_defn; | |
111 | extern char *warning_pre_print; | |
c5aa993b | 112 | |
c906108c | 113 | /* The current (default at startup) state of type and range checking. |
c5aa993b JM |
114 | (If the modes are set to "auto", though, these are changed based |
115 | on the default language at startup, and then again based on the | |
116 | language of the first source file. */ | |
c906108c SS |
117 | |
118 | enum range_mode range_mode = range_mode_auto; | |
119 | enum range_check range_check = range_check_off; | |
120 | enum type_mode type_mode = type_mode_auto; | |
121 | enum type_check type_check = type_check_off; | |
122 | ||
123 | /* The current language and language_mode (see language.h) */ | |
124 | ||
125 | const struct language_defn *current_language = &unknown_language_defn; | |
126 | enum language_mode language_mode = language_mode_auto; | |
127 | ||
128 | /* The language that the user expects to be typing in (the language | |
129 | of main(), or the last language we notified them about, or C). */ | |
130 | ||
131 | const struct language_defn *expected_language; | |
132 | ||
133 | /* The list of supported languages. The list itself is malloc'd. */ | |
134 | ||
135 | static const struct language_defn **languages; | |
136 | static unsigned languages_size; | |
137 | static unsigned languages_allocsize; | |
138 | #define DEFAULT_ALLOCSIZE 4 | |
139 | ||
140 | /* The "set language/type/range" commands all put stuff in these | |
141 | buffers. This is to make them work as set/show commands. The | |
142 | user's string is copied here, then the set_* commands look at | |
143 | them and update them to something that looks nice when it is | |
144 | printed out. */ | |
145 | ||
146 | static char *language; | |
147 | static char *type; | |
148 | static char *range; | |
149 | ||
150 | /* Warning issued when current_language and the language of the current | |
151 | frame do not match. */ | |
152 | char lang_frame_mismatch_warn[] = | |
c5aa993b | 153 | "Warning: the current language does not match this frame."; |
c906108c | 154 | \f |
c5aa993b | 155 | |
c906108c SS |
156 | /* This page contains the functions corresponding to GDB commands |
157 | and their helpers. */ | |
158 | ||
159 | /* Show command. Display a warning if the language set | |
160 | does not match the frame. */ | |
161 | static void | |
162 | show_language_command (ignore, from_tty) | |
c5aa993b JM |
163 | char *ignore; |
164 | int from_tty; | |
c906108c | 165 | { |
c5aa993b | 166 | enum language flang; /* The language of the current frame */ |
c906108c | 167 | |
c5aa993b JM |
168 | flang = get_frame_language (); |
169 | if (flang != language_unknown && | |
170 | language_mode == language_mode_manual && | |
171 | current_language->la_language != flang) | |
172 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
c906108c SS |
173 | } |
174 | ||
175 | /* Set command. Change the current working language. */ | |
176 | static void | |
177 | set_language_command (ignore, from_tty) | |
c5aa993b JM |
178 | char *ignore; |
179 | int from_tty; | |
c906108c SS |
180 | { |
181 | int i; | |
182 | enum language flang; | |
183 | char *err_lang; | |
184 | ||
185 | if (!language || !language[0]) | |
186 | { | |
c5aa993b | 187 | printf_unfiltered ("The currently understood settings are:\n\n"); |
c906108c SS |
188 | printf_unfiltered ("local or auto Automatic setting based on source file\n"); |
189 | ||
190 | for (i = 0; i < languages_size; ++i) | |
191 | { | |
192 | /* Already dealt with these above. */ | |
193 | if (languages[i]->la_language == language_unknown | |
194 | || languages[i]->la_language == language_auto) | |
195 | continue; | |
196 | ||
197 | /* FIXME for now assume that the human-readable name is just | |
198 | a capitalization of the internal name. */ | |
199 | printf_unfiltered ("%-16s Use the %c%s language\n", | |
200 | languages[i]->la_name, | |
c5aa993b JM |
201 | /* Capitalize first letter of language |
202 | name. */ | |
c906108c SS |
203 | toupper (languages[i]->la_name[0]), |
204 | languages[i]->la_name + 1); | |
205 | } | |
206 | /* Restore the silly string. */ | |
c5aa993b | 207 | set_language (current_language->la_language); |
c906108c SS |
208 | return; |
209 | } | |
210 | ||
211 | /* Search the list of languages for a match. */ | |
c5aa993b JM |
212 | for (i = 0; i < languages_size; i++) |
213 | { | |
214 | if (STREQ (languages[i]->la_name, language)) | |
215 | { | |
216 | /* Found it! Go into manual mode, and use this language. */ | |
217 | if (languages[i]->la_language == language_auto) | |
218 | { | |
219 | /* Enter auto mode. Set to the current frame's language, if known. */ | |
220 | language_mode = language_mode_auto; | |
221 | flang = get_frame_language (); | |
222 | if (flang != language_unknown) | |
223 | set_language (flang); | |
224 | expected_language = current_language; | |
225 | return; | |
226 | } | |
227 | else | |
228 | { | |
229 | /* Enter manual mode. Set the specified language. */ | |
230 | language_mode = language_mode_manual; | |
231 | current_language = languages[i]; | |
232 | set_type_range (); | |
233 | set_lang_str (); | |
234 | expected_language = current_language; | |
235 | return; | |
236 | } | |
237 | } | |
c906108c | 238 | } |
c906108c SS |
239 | |
240 | /* Reset the language (esp. the global string "language") to the | |
241 | correct values. */ | |
c5aa993b | 242 | err_lang = savestring (language, strlen (language)); |
c906108c | 243 | make_cleanup (free, err_lang); /* Free it after error */ |
c5aa993b JM |
244 | set_language (current_language->la_language); |
245 | error ("Unknown language `%s'.", err_lang); | |
c906108c SS |
246 | } |
247 | ||
248 | /* Show command. Display a warning if the type setting does | |
249 | not match the current language. */ | |
250 | static void | |
c5aa993b JM |
251 | show_type_command (ignore, from_tty) |
252 | char *ignore; | |
253 | int from_tty; | |
c906108c | 254 | { |
c5aa993b JM |
255 | if (type_check != current_language->la_type_check) |
256 | printf_unfiltered ( | |
257 | "Warning: the current type check setting does not match the language.\n"); | |
c906108c SS |
258 | } |
259 | ||
260 | /* Set command. Change the setting for type checking. */ | |
261 | static void | |
c5aa993b JM |
262 | set_type_command (ignore, from_tty) |
263 | char *ignore; | |
264 | int from_tty; | |
c906108c | 265 | { |
c5aa993b JM |
266 | if (STREQ (type, "on")) |
267 | { | |
c906108c SS |
268 | type_check = type_check_on; |
269 | type_mode = type_mode_manual; | |
c5aa993b JM |
270 | } |
271 | else if (STREQ (type, "warn")) | |
272 | { | |
c906108c SS |
273 | type_check = type_check_warn; |
274 | type_mode = type_mode_manual; | |
c5aa993b JM |
275 | } |
276 | else if (STREQ (type, "off")) | |
277 | { | |
c906108c SS |
278 | type_check = type_check_off; |
279 | type_mode = type_mode_manual; | |
c5aa993b JM |
280 | } |
281 | else if (STREQ (type, "auto")) | |
282 | { | |
c906108c | 283 | type_mode = type_mode_auto; |
c5aa993b | 284 | set_type_range (); |
c906108c SS |
285 | /* Avoid hitting the set_type_str call below. We |
286 | did it in set_type_range. */ | |
287 | return; | |
c5aa993b | 288 | } |
c4093a6a JM |
289 | else |
290 | { | |
291 | warning ("Unrecognized type check setting: \"%s\"", type); | |
292 | } | |
c5aa993b JM |
293 | set_type_str (); |
294 | show_type_command ((char *) NULL, from_tty); | |
c906108c SS |
295 | } |
296 | ||
297 | /* Show command. Display a warning if the range setting does | |
298 | not match the current language. */ | |
299 | static void | |
c5aa993b JM |
300 | show_range_command (ignore, from_tty) |
301 | char *ignore; | |
302 | int from_tty; | |
c906108c SS |
303 | { |
304 | ||
c5aa993b JM |
305 | if (range_check != current_language->la_range_check) |
306 | printf_unfiltered ( | |
307 | "Warning: the current range check setting does not match the language.\n"); | |
c906108c SS |
308 | } |
309 | ||
310 | /* Set command. Change the setting for range checking. */ | |
311 | static void | |
c5aa993b JM |
312 | set_range_command (ignore, from_tty) |
313 | char *ignore; | |
314 | int from_tty; | |
c906108c | 315 | { |
c5aa993b JM |
316 | if (STREQ (range, "on")) |
317 | { | |
c906108c SS |
318 | range_check = range_check_on; |
319 | range_mode = range_mode_manual; | |
c5aa993b JM |
320 | } |
321 | else if (STREQ (range, "warn")) | |
322 | { | |
c906108c SS |
323 | range_check = range_check_warn; |
324 | range_mode = range_mode_manual; | |
c5aa993b JM |
325 | } |
326 | else if (STREQ (range, "off")) | |
327 | { | |
c906108c SS |
328 | range_check = range_check_off; |
329 | range_mode = range_mode_manual; | |
c5aa993b JM |
330 | } |
331 | else if (STREQ (range, "auto")) | |
332 | { | |
c906108c | 333 | range_mode = range_mode_auto; |
c5aa993b | 334 | set_type_range (); |
c906108c | 335 | /* Avoid hitting the set_range_str call below. We |
c5aa993b | 336 | did it in set_type_range. */ |
c906108c | 337 | return; |
c5aa993b | 338 | } |
c4093a6a JM |
339 | else |
340 | { | |
341 | warning ("Unrecognized range check setting: \"%s\"", range); | |
342 | } | |
c5aa993b JM |
343 | set_range_str (); |
344 | show_range_command ((char *) 0, from_tty); | |
c906108c SS |
345 | } |
346 | ||
347 | /* Set the status of range and type checking based on | |
348 | the current modes and the current language. | |
349 | If SHOW is non-zero, then print out the current language, | |
350 | type and range checking status. */ | |
351 | static void | |
c5aa993b | 352 | set_type_range () |
c906108c SS |
353 | { |
354 | ||
355 | if (range_mode == range_mode_auto) | |
356 | range_check = current_language->la_range_check; | |
357 | ||
358 | if (type_mode == type_mode_auto) | |
359 | type_check = current_language->la_type_check; | |
360 | ||
c5aa993b JM |
361 | set_type_str (); |
362 | set_range_str (); | |
c906108c SS |
363 | } |
364 | ||
365 | /* Set current language to (enum language) LANG. Returns previous language. */ | |
366 | ||
367 | enum language | |
c5aa993b JM |
368 | set_language (lang) |
369 | enum language lang; | |
c906108c SS |
370 | { |
371 | int i; | |
372 | enum language prev_language; | |
373 | ||
374 | prev_language = current_language->la_language; | |
375 | ||
c5aa993b JM |
376 | for (i = 0; i < languages_size; i++) |
377 | { | |
378 | if (languages[i]->la_language == lang) | |
379 | { | |
380 | current_language = languages[i]; | |
381 | set_type_range (); | |
382 | set_lang_str (); | |
383 | break; | |
384 | } | |
c906108c | 385 | } |
c906108c SS |
386 | |
387 | return prev_language; | |
388 | } | |
389 | \f | |
390 | /* This page contains functions that update the global vars | |
391 | language, type and range. */ | |
392 | static void | |
c5aa993b | 393 | set_lang_str () |
c906108c | 394 | { |
c5aa993b | 395 | char *prefix = ""; |
c906108c | 396 | |
c5aa993b JM |
397 | free (language); |
398 | if (language_mode == language_mode_auto) | |
399 | prefix = "auto; currently "; | |
c906108c | 400 | |
c5aa993b | 401 | language = concat (prefix, current_language->la_name, NULL); |
c906108c SS |
402 | } |
403 | ||
404 | static void | |
c5aa993b | 405 | set_type_str () |
c906108c | 406 | { |
c4093a6a | 407 | char *tmp = NULL, *prefix = ""; |
c906108c | 408 | |
c5aa993b JM |
409 | free (type); |
410 | if (type_mode == type_mode_auto) | |
411 | prefix = "auto; currently "; | |
c906108c | 412 | |
c5aa993b JM |
413 | switch (type_check) |
414 | { | |
415 | case type_check_on: | |
c906108c SS |
416 | tmp = "on"; |
417 | break; | |
c5aa993b | 418 | case type_check_off: |
c906108c SS |
419 | tmp = "off"; |
420 | break; | |
c5aa993b | 421 | case type_check_warn: |
c906108c SS |
422 | tmp = "warn"; |
423 | break; | |
c5aa993b | 424 | default: |
c906108c | 425 | error ("Unrecognized type check setting."); |
c5aa993b | 426 | } |
c906108c | 427 | |
c5aa993b | 428 | type = concat (prefix, tmp, NULL); |
c906108c SS |
429 | } |
430 | ||
431 | static void | |
c5aa993b | 432 | set_range_str () |
c906108c | 433 | { |
c5aa993b | 434 | char *tmp, *pref = ""; |
c906108c | 435 | |
c5aa993b JM |
436 | if (range_mode == range_mode_auto) |
437 | pref = "auto; currently "; | |
c906108c | 438 | |
c5aa993b JM |
439 | switch (range_check) |
440 | { | |
441 | case range_check_on: | |
c906108c SS |
442 | tmp = "on"; |
443 | break; | |
c5aa993b | 444 | case range_check_off: |
c906108c SS |
445 | tmp = "off"; |
446 | break; | |
c5aa993b | 447 | case range_check_warn: |
c906108c SS |
448 | tmp = "warn"; |
449 | break; | |
c5aa993b | 450 | default: |
c906108c | 451 | error ("Unrecognized range check setting."); |
c5aa993b | 452 | } |
c906108c | 453 | |
c4093a6a | 454 | free (range); |
c5aa993b | 455 | range = concat (pref, tmp, NULL); |
c906108c SS |
456 | } |
457 | ||
458 | ||
459 | /* Print out the current language settings: language, range and | |
460 | type checking. If QUIETLY, print only what has changed. */ | |
461 | ||
462 | void | |
463 | language_info (quietly) | |
464 | int quietly; | |
465 | { | |
466 | if (quietly && expected_language == current_language) | |
467 | return; | |
468 | ||
469 | expected_language = current_language; | |
c5aa993b JM |
470 | printf_unfiltered ("Current language: %s\n", language); |
471 | show_language_command ((char *) 0, 1); | |
c906108c SS |
472 | |
473 | if (!quietly) | |
474 | { | |
c5aa993b JM |
475 | printf_unfiltered ("Type checking: %s\n", type); |
476 | show_type_command ((char *) 0, 1); | |
477 | printf_unfiltered ("Range checking: %s\n", range); | |
478 | show_range_command ((char *) 0, 1); | |
c906108c SS |
479 | } |
480 | } | |
481 | \f | |
482 | /* Return the result of a binary operation. */ | |
483 | ||
c5aa993b | 484 | #if 0 /* Currently unused */ |
c906108c SS |
485 | |
486 | struct type * | |
487 | binop_result_type (v1, v2) | |
c5aa993b | 488 | value_ptr v1, v2; |
c906108c | 489 | { |
c5aa993b JM |
490 | int size, uns; |
491 | struct type *t1 = check_typedef (VALUE_TYPE (v1)); | |
492 | struct type *t2 = check_typedef (VALUE_TYPE (v2)); | |
493 | ||
494 | int l1 = TYPE_LENGTH (t1); | |
495 | int l2 = TYPE_LENGTH (t2); | |
496 | ||
497 | switch (current_language->la_language) | |
498 | { | |
499 | case language_c: | |
500 | case language_cplus: | |
501 | if (TYPE_CODE (t1) == TYPE_CODE_FLT) | |
502 | return TYPE_CODE (t2) == TYPE_CODE_FLT && l2 > l1 ? | |
503 | VALUE_TYPE (v2) : VALUE_TYPE (v1); | |
504 | else if (TYPE_CODE (t2) == TYPE_CODE_FLT) | |
505 | return TYPE_CODE (t1) == TYPE_CODE_FLT && l1 > l2 ? | |
506 | VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
507 | else if (TYPE_UNSIGNED (t1) && l1 > l2) | |
508 | return VALUE_TYPE (v1); | |
509 | else if (TYPE_UNSIGNED (t2) && l2 > l1) | |
510 | return VALUE_TYPE (v2); | |
511 | else /* Both are signed. Result is the longer type */ | |
512 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
c906108c | 513 | break; |
c5aa993b | 514 | case language_m2: |
c906108c | 515 | /* If we are doing type-checking, l1 should equal l2, so this is |
c5aa993b JM |
516 | not needed. */ |
517 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
c906108c | 518 | break; |
c5aa993b JM |
519 | case language_chill: |
520 | error ("Missing Chill support in function binop_result_check."); /*FIXME */ | |
521 | } | |
522 | abort (); | |
523 | return (struct type *) 0; /* For lint */ | |
c906108c SS |
524 | } |
525 | ||
c5aa993b | 526 | #endif /* 0 */ |
c906108c | 527 | \f |
c5aa993b | 528 | |
c906108c SS |
529 | /* This page contains functions that return format strings for |
530 | printf for printing out numbers in different formats */ | |
531 | ||
532 | /* Returns the appropriate printf format for hexadecimal | |
533 | numbers. */ | |
534 | char * | |
c5aa993b JM |
535 | local_hex_format_custom (pre) |
536 | char *pre; | |
c906108c | 537 | { |
c5aa993b JM |
538 | static char form[50]; |
539 | ||
540 | strcpy (form, local_hex_format_prefix ()); | |
541 | strcat (form, "%"); | |
542 | strcat (form, pre); | |
543 | strcat (form, local_hex_format_specifier ()); | |
544 | strcat (form, local_hex_format_suffix ()); | |
545 | return form; | |
c906108c SS |
546 | } |
547 | ||
c4093a6a JM |
548 | /* Converts a number to hexadecimal (without leading "0x") and stores it in a |
549 | static string. Returns a pointer to this string. */ | |
550 | ||
551 | char * | |
552 | longest_raw_hex_string (num) | |
553 | LONGEST num; | |
554 | { | |
555 | static char res_longest_raw_hex_string[50]; | |
556 | long long ll = num; /* MERGEBUG ?? see below */ | |
557 | res_longest_raw_hex_string[0] = 0; | |
558 | /* MERGEBUG ?? As a quick fix I am replacing this with sprintf | |
559 | strcat_address_numeric (num, 0, res_longest_raw_hex_string, 50); | |
560 | */ | |
561 | ||
562 | sprintf (res_longest_raw_hex_string, "%llx", ll); | |
563 | return res_longest_raw_hex_string; | |
564 | } | |
565 | ||
c906108c SS |
566 | /* Converts a number to hexadecimal and stores it in a static |
567 | string. Returns a pointer to this string. */ | |
568 | char * | |
569 | local_hex_string (num) | |
c5aa993b | 570 | unsigned long num; |
c906108c | 571 | { |
c5aa993b | 572 | static char res[50]; |
c906108c | 573 | |
c5aa993b JM |
574 | sprintf (res, local_hex_format (), num); |
575 | return res; | |
c906108c SS |
576 | } |
577 | ||
c4093a6a JM |
578 | /* Converts a LONGEST number to hexadecimal and stores it in a static |
579 | string. Returns a pointer to this string. */ | |
580 | char * | |
581 | longest_local_hex_string (num) | |
582 | LONGEST num; | |
583 | { | |
584 | return longest_local_hex_string_custom (num, "l"); | |
585 | } | |
586 | ||
c906108c SS |
587 | /* Converts a number to custom hexadecimal and stores it in a static |
588 | string. Returns a pointer to this string. */ | |
589 | char * | |
c5aa993b JM |
590 | local_hex_string_custom (num, pre) |
591 | unsigned long num; | |
592 | char *pre; | |
c906108c | 593 | { |
c5aa993b | 594 | static char res[50]; |
c906108c | 595 | |
c5aa993b JM |
596 | sprintf (res, local_hex_format_custom (pre), num); |
597 | return res; | |
c906108c SS |
598 | } |
599 | ||
c4093a6a JM |
600 | /* Converts a LONGEST number to custom hexadecimal and stores it in a static |
601 | string. Returns a pointer to this string. Note that the width parameter | |
602 | should end with "l", e.g. "08l" as with calls to local_hex_string_custom */ | |
603 | ||
604 | char * | |
605 | longest_local_hex_string_custom (num, width) | |
606 | LONGEST num; | |
607 | char *width; | |
608 | { | |
609 | #define RESULT_BUF_LEN 50 | |
610 | static char res2[RESULT_BUF_LEN]; | |
611 | char format[RESULT_BUF_LEN]; | |
612 | #if !defined (PRINTF_HAS_LONG_LONG) | |
613 | int field_width; | |
614 | int num_len; | |
615 | int num_pad_chars; | |
616 | char *pad_char; /* string with one character */ | |
617 | int pad_on_left; | |
618 | char *parse_ptr; | |
619 | char temp_nbr_buf[RESULT_BUF_LEN]; | |
620 | #endif | |
621 | ||
622 | #ifndef CC_HAS_LONG_LONG | |
623 | /* If there is no long long, then LONGEST should be just long and we | |
624 | can use local_hex_string_custom | |
625 | */ | |
626 | return local_hex_string_custom ((unsigned long) num, width); | |
627 | #endif | |
628 | ||
629 | #if defined (PRINTF_HAS_LONG_LONG) | |
630 | /* Just use printf. */ | |
631 | strcpy (format, local_hex_format_prefix ()); /* 0x */ | |
632 | strcat (format, "%"); | |
633 | strcat (format, width); /* e.g. "08l" */ | |
634 | strcat (format, "l"); /* need "ll" for long long */ | |
635 | strcat (format, local_hex_format_specifier ()); /* "x" */ | |
636 | strcat (format, local_hex_format_suffix ()); /* "" */ | |
637 | sprintf (res2, format, num); | |
638 | return res2; | |
639 | #else /* !defined (PRINTF_HAS_LONG_LONG) */ | |
640 | /* Use strcat_address_numeric to print the number into a string, then | |
641 | build the result string from local_hex_format_prefix, padding and | |
642 | the hex representation as indicated by "width". */ | |
643 | ||
644 | temp_nbr_buf[0] = 0; | |
645 | /* With use_local == 0, we don't get the leading "0x" prefix. */ | |
646 | /* MERGEBUG ?? As a quick fix I am replacing this call to | |
647 | strcat_address_numeric with sprintf | |
648 | strcat_address_numeric(num, 0, temp_nbr_buf, RESULT_BUF_LEN); | |
649 | */ | |
650 | ||
651 | { | |
652 | long long ll = num; | |
653 | sprintf (temp_nbr_buf, "%llx", ll); | |
654 | } | |
655 | /* parse width */ | |
656 | parse_ptr = width; | |
657 | pad_on_left = 1; | |
658 | pad_char = " "; | |
659 | if (*parse_ptr == '-') | |
660 | { | |
661 | parse_ptr++; | |
662 | pad_on_left = 0; | |
663 | } | |
664 | if (*parse_ptr == '0') | |
665 | { | |
666 | parse_ptr++; | |
667 | if (pad_on_left) | |
668 | pad_char = "0"; /* If padding is on the right, it is blank */ | |
669 | } | |
670 | field_width = atoi (parse_ptr); | |
671 | num_len = strlen (temp_nbr_buf); | |
672 | num_pad_chars = field_width - strlen (temp_nbr_buf); /* possibly negative */ | |
673 | ||
674 | if (strlen (local_hex_format_prefix ()) + num_len + num_pad_chars | |
675 | < RESULT_BUF_LEN) /* paranoia */ | |
676 | internal_error ("longest_local_hex_string_custom: insufficient space to store result"); | |
677 | ||
678 | strcpy (res2, local_hex_format_prefix ()); | |
679 | if (pad_on_left) | |
680 | { | |
681 | while (num_pad_chars > 0) | |
682 | { | |
683 | strcat (res2, pad_char); | |
684 | num_pad_chars--; | |
685 | } | |
686 | } | |
687 | strcat (res2, temp_nbr_buf); | |
688 | if (!pad_on_left) | |
689 | { | |
690 | while (num_pad_chars > 0) | |
691 | { | |
692 | strcat (res2, pad_char); | |
693 | num_pad_chars--; | |
694 | } | |
695 | } | |
696 | return res2; | |
697 | #endif | |
698 | ||
699 | } /* longest_local_hex_string_custom */ | |
700 | ||
c906108c SS |
701 | /* Returns the appropriate printf format for octal |
702 | numbers. */ | |
703 | char * | |
c5aa993b JM |
704 | local_octal_format_custom (pre) |
705 | char *pre; | |
c906108c | 706 | { |
c5aa993b JM |
707 | static char form[50]; |
708 | ||
709 | strcpy (form, local_octal_format_prefix ()); | |
710 | strcat (form, "%"); | |
711 | strcat (form, pre); | |
712 | strcat (form, local_octal_format_specifier ()); | |
713 | strcat (form, local_octal_format_suffix ()); | |
714 | return form; | |
c906108c SS |
715 | } |
716 | ||
717 | /* Returns the appropriate printf format for decimal numbers. */ | |
718 | char * | |
c5aa993b JM |
719 | local_decimal_format_custom (pre) |
720 | char *pre; | |
c906108c | 721 | { |
c5aa993b JM |
722 | static char form[50]; |
723 | ||
724 | strcpy (form, local_decimal_format_prefix ()); | |
725 | strcat (form, "%"); | |
726 | strcat (form, pre); | |
727 | strcat (form, local_decimal_format_specifier ()); | |
728 | strcat (form, local_decimal_format_suffix ()); | |
729 | return form; | |
c906108c SS |
730 | } |
731 | \f | |
732 | #if 0 | |
733 | /* This page contains functions that are used in type/range checking. | |
734 | They all return zero if the type/range check fails. | |
735 | ||
736 | It is hoped that these will make extending GDB to parse different | |
737 | languages a little easier. These are primarily used in eval.c when | |
738 | evaluating expressions and making sure that their types are correct. | |
739 | Instead of having a mess of conjucted/disjuncted expressions in an "if", | |
740 | the ideas of type can be wrapped up in the following functions. | |
741 | ||
742 | Note that some of them are not currently dependent upon which language | |
743 | is currently being parsed. For example, floats are the same in | |
744 | C and Modula-2 (ie. the only floating point type has TYPE_CODE of | |
745 | TYPE_CODE_FLT), while booleans are different. */ | |
746 | ||
747 | /* Returns non-zero if its argument is a simple type. This is the same for | |
748 | both Modula-2 and for C. In the C case, TYPE_CODE_CHAR will never occur, | |
749 | and thus will never cause the failure of the test. */ | |
750 | int | |
c5aa993b JM |
751 | simple_type (type) |
752 | struct type *type; | |
c906108c SS |
753 | { |
754 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
755 | switch (TYPE_CODE (type)) |
756 | { | |
757 | case TYPE_CODE_INT: | |
758 | case TYPE_CODE_CHAR: | |
759 | case TYPE_CODE_ENUM: | |
760 | case TYPE_CODE_FLT: | |
761 | case TYPE_CODE_RANGE: | |
762 | case TYPE_CODE_BOOL: | |
763 | return 1; | |
c906108c | 764 | |
c5aa993b JM |
765 | default: |
766 | return 0; | |
767 | } | |
c906108c SS |
768 | } |
769 | ||
770 | /* Returns non-zero if its argument is of an ordered type. | |
771 | An ordered type is one in which the elements can be tested for the | |
772 | properties of "greater than", "less than", etc, or for which the | |
773 | operations "increment" or "decrement" make sense. */ | |
774 | int | |
775 | ordered_type (type) | |
c5aa993b | 776 | struct type *type; |
c906108c SS |
777 | { |
778 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
779 | switch (TYPE_CODE (type)) |
780 | { | |
781 | case TYPE_CODE_INT: | |
782 | case TYPE_CODE_CHAR: | |
783 | case TYPE_CODE_ENUM: | |
784 | case TYPE_CODE_FLT: | |
785 | case TYPE_CODE_RANGE: | |
786 | return 1; | |
c906108c | 787 | |
c5aa993b JM |
788 | default: |
789 | return 0; | |
790 | } | |
c906108c SS |
791 | } |
792 | ||
793 | /* Returns non-zero if the two types are the same */ | |
794 | int | |
795 | same_type (arg1, arg2) | |
c5aa993b | 796 | struct type *arg1, *arg2; |
c906108c SS |
797 | { |
798 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
799 | if (structured_type (arg1) ? !structured_type (arg2) : structured_type (arg2)) |
800 | /* One is structured and one isn't */ | |
801 | return 0; | |
802 | else if (structured_type (arg1) && structured_type (arg2)) | |
803 | return arg1 == arg2; | |
804 | else if (numeric_type (arg1) && numeric_type (arg2)) | |
805 | return (TYPE_CODE (arg2) == TYPE_CODE (arg1)) && | |
806 | (TYPE_UNSIGNED (arg1) == TYPE_UNSIGNED (arg2)) | |
807 | ? 1 : 0; | |
808 | else | |
809 | return arg1 == arg2; | |
c906108c SS |
810 | } |
811 | ||
812 | /* Returns non-zero if the type is integral */ | |
813 | int | |
814 | integral_type (type) | |
c5aa993b | 815 | struct type *type; |
c906108c SS |
816 | { |
817 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
818 | switch (current_language->la_language) |
819 | { | |
820 | case language_c: | |
821 | case language_cplus: | |
822 | return (TYPE_CODE (type) != TYPE_CODE_INT) && | |
823 | (TYPE_CODE (type) != TYPE_CODE_ENUM) ? 0 : 1; | |
824 | case language_m2: | |
825 | return TYPE_CODE (type) != TYPE_CODE_INT ? 0 : 1; | |
826 | case language_chill: | |
827 | error ("Missing Chill support in function integral_type."); /*FIXME */ | |
828 | default: | |
c906108c | 829 | error ("Language not supported."); |
c5aa993b | 830 | } |
c906108c SS |
831 | } |
832 | ||
833 | /* Returns non-zero if the value is numeric */ | |
834 | int | |
835 | numeric_type (type) | |
c5aa993b | 836 | struct type *type; |
c906108c SS |
837 | { |
838 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
839 | switch (TYPE_CODE (type)) |
840 | { | |
841 | case TYPE_CODE_INT: | |
842 | case TYPE_CODE_FLT: | |
843 | return 1; | |
c906108c | 844 | |
c5aa993b JM |
845 | default: |
846 | return 0; | |
847 | } | |
c906108c SS |
848 | } |
849 | ||
850 | /* Returns non-zero if the value is a character type */ | |
851 | int | |
852 | character_type (type) | |
c5aa993b | 853 | struct type *type; |
c906108c SS |
854 | { |
855 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
856 | switch (current_language->la_language) |
857 | { | |
858 | case language_chill: | |
859 | case language_m2: | |
860 | return TYPE_CODE (type) != TYPE_CODE_CHAR ? 0 : 1; | |
861 | ||
862 | case language_c: | |
863 | case language_cplus: | |
864 | return (TYPE_CODE (type) == TYPE_CODE_INT) && | |
865 | TYPE_LENGTH (type) == sizeof (char) | |
866 | ? 1 : 0; | |
867 | default: | |
c906108c | 868 | return (0); |
c5aa993b | 869 | } |
c906108c SS |
870 | } |
871 | ||
872 | /* Returns non-zero if the value is a string type */ | |
873 | int | |
874 | string_type (type) | |
c5aa993b | 875 | struct type *type; |
c906108c SS |
876 | { |
877 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
878 | switch (current_language->la_language) |
879 | { | |
880 | case language_chill: | |
881 | case language_m2: | |
882 | return TYPE_CODE (type) != TYPE_CODE_STRING ? 0 : 1; | |
883 | ||
884 | case language_c: | |
885 | case language_cplus: | |
c906108c SS |
886 | /* C does not have distinct string type. */ |
887 | return (0); | |
c5aa993b | 888 | default: |
c906108c | 889 | return (0); |
c5aa993b | 890 | } |
c906108c SS |
891 | } |
892 | ||
893 | /* Returns non-zero if the value is a boolean type */ | |
894 | int | |
895 | boolean_type (type) | |
c5aa993b | 896 | struct type *type; |
c906108c SS |
897 | { |
898 | CHECK_TYPEDEF (type); | |
899 | if (TYPE_CODE (type) == TYPE_CODE_BOOL) | |
900 | return 1; | |
c5aa993b | 901 | switch (current_language->la_language) |
c906108c SS |
902 | { |
903 | case language_c: | |
904 | case language_cplus: | |
905 | /* Might be more cleanly handled by having a TYPE_CODE_INT_NOT_BOOL | |
c5aa993b | 906 | for CHILL and such languages, or a TYPE_CODE_INT_OR_BOOL for C. */ |
c906108c SS |
907 | if (TYPE_CODE (type) == TYPE_CODE_INT) |
908 | return 1; | |
c5aa993b | 909 | default: |
c906108c | 910 | break; |
c5aa993b | 911 | } |
c906108c SS |
912 | return 0; |
913 | } | |
914 | ||
915 | /* Returns non-zero if the value is a floating-point type */ | |
916 | int | |
917 | float_type (type) | |
c5aa993b | 918 | struct type *type; |
c906108c SS |
919 | { |
920 | CHECK_TYPEDEF (type); | |
c5aa993b | 921 | return TYPE_CODE (type) == TYPE_CODE_FLT; |
c906108c SS |
922 | } |
923 | ||
924 | /* Returns non-zero if the value is a pointer type */ | |
925 | int | |
c5aa993b JM |
926 | pointer_type (type) |
927 | struct type *type; | |
c906108c | 928 | { |
c5aa993b JM |
929 | return TYPE_CODE (type) == TYPE_CODE_PTR || |
930 | TYPE_CODE (type) == TYPE_CODE_REF; | |
c906108c SS |
931 | } |
932 | ||
933 | /* Returns non-zero if the value is a structured type */ | |
934 | int | |
c5aa993b JM |
935 | structured_type (type) |
936 | struct type *type; | |
c906108c SS |
937 | { |
938 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
939 | switch (current_language->la_language) |
940 | { | |
941 | case language_c: | |
942 | case language_cplus: | |
943 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || | |
944 | (TYPE_CODE (type) == TYPE_CODE_UNION) || | |
945 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
946 | case language_m2: | |
947 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || | |
948 | (TYPE_CODE (type) == TYPE_CODE_SET) || | |
949 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
950 | case language_chill: | |
951 | error ("Missing Chill support in function structured_type."); /*FIXME */ | |
952 | default: | |
c906108c | 953 | return (0); |
c5aa993b | 954 | } |
c906108c SS |
955 | } |
956 | #endif | |
957 | \f | |
958 | struct type * | |
959 | lang_bool_type () | |
960 | { | |
961 | struct symbol *sym; | |
962 | struct type *type; | |
c5aa993b | 963 | switch (current_language->la_language) |
c906108c SS |
964 | { |
965 | case language_chill: | |
966 | return builtin_type_chill_bool; | |
967 | case language_fortran: | |
968 | sym = lookup_symbol ("logical", NULL, VAR_NAMESPACE, NULL, NULL); | |
969 | if (sym) | |
970 | { | |
971 | type = SYMBOL_TYPE (sym); | |
972 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
973 | return type; | |
974 | } | |
975 | return builtin_type_f_logical_s2; | |
976 | case language_cplus: | |
977 | sym = lookup_symbol ("bool", NULL, VAR_NAMESPACE, NULL, NULL); | |
978 | if (sym) | |
979 | { | |
980 | type = SYMBOL_TYPE (sym); | |
981 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
982 | return type; | |
983 | } | |
984 | return builtin_type_bool; | |
985 | default: | |
986 | return builtin_type_int; | |
987 | } | |
988 | } | |
989 | \f | |
990 | /* This page contains functions that return info about | |
991 | (struct value) values used in GDB. */ | |
992 | ||
993 | /* Returns non-zero if the value VAL represents a true value. */ | |
994 | int | |
995 | value_true (val) | |
996 | value_ptr val; | |
997 | { | |
998 | /* It is possible that we should have some sort of error if a non-boolean | |
999 | value is used in this context. Possibly dependent on some kind of | |
1000 | "boolean-checking" option like range checking. But it should probably | |
1001 | not depend on the language except insofar as is necessary to identify | |
1002 | a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean | |
1003 | should be an error, probably). */ | |
1004 | return !value_logical_not (val); | |
1005 | } | |
1006 | \f | |
1007 | /* Returns non-zero if the operator OP is defined on | |
1008 | the values ARG1 and ARG2. */ | |
1009 | ||
c5aa993b | 1010 | #if 0 /* Currently unused */ |
c906108c SS |
1011 | |
1012 | void | |
c5aa993b JM |
1013 | binop_type_check (arg1, arg2, op) |
1014 | value_ptr arg1, arg2; | |
1015 | int op; | |
c906108c | 1016 | { |
c5aa993b | 1017 | struct type *t1, *t2; |
c906108c | 1018 | |
c5aa993b JM |
1019 | /* If we're not checking types, always return success. */ |
1020 | if (!STRICT_TYPE) | |
1021 | return; | |
1022 | ||
1023 | t1 = VALUE_TYPE (arg1); | |
1024 | if (arg2 != NULL) | |
1025 | t2 = VALUE_TYPE (arg2); | |
1026 | else | |
1027 | t2 = NULL; | |
c906108c | 1028 | |
c5aa993b JM |
1029 | switch (op) |
1030 | { | |
1031 | case BINOP_ADD: | |
1032 | case BINOP_SUB: | |
1033 | if ((numeric_type (t1) && pointer_type (t2)) || | |
1034 | (pointer_type (t1) && numeric_type (t2))) | |
1035 | { | |
1036 | warning ("combining pointer and integer.\n"); | |
1037 | break; | |
1038 | } | |
1039 | case BINOP_MUL: | |
1040 | case BINOP_LSH: | |
1041 | case BINOP_RSH: | |
1042 | if (!numeric_type (t1) || !numeric_type (t2)) | |
1043 | type_op_error ("Arguments to %s must be numbers.", op); | |
1044 | else if (!same_type (t1, t2)) | |
1045 | type_op_error ("Arguments to %s must be of the same type.", op); | |
c906108c SS |
1046 | break; |
1047 | ||
c5aa993b JM |
1048 | case BINOP_LOGICAL_AND: |
1049 | case BINOP_LOGICAL_OR: | |
1050 | if (!boolean_type (t1) || !boolean_type (t2)) | |
1051 | type_op_error ("Arguments to %s must be of boolean type.", op); | |
c906108c SS |
1052 | break; |
1053 | ||
c5aa993b JM |
1054 | case BINOP_EQUAL: |
1055 | if ((pointer_type (t1) && !(pointer_type (t2) || integral_type (t2))) || | |
1056 | (pointer_type (t2) && !(pointer_type (t1) || integral_type (t1)))) | |
1057 | type_op_error ("A pointer can only be compared to an integer or pointer.", op); | |
1058 | else if ((pointer_type (t1) && integral_type (t2)) || | |
1059 | (integral_type (t1) && pointer_type (t2))) | |
1060 | { | |
1061 | warning ("combining integer and pointer.\n"); | |
1062 | break; | |
1063 | } | |
1064 | else if (!simple_type (t1) || !simple_type (t2)) | |
1065 | type_op_error ("Arguments to %s must be of simple type.", op); | |
1066 | else if (!same_type (t1, t2)) | |
1067 | type_op_error ("Arguments to %s must be of the same type.", op); | |
c906108c SS |
1068 | break; |
1069 | ||
c5aa993b JM |
1070 | case BINOP_REM: |
1071 | case BINOP_MOD: | |
1072 | if (!integral_type (t1) || !integral_type (t2)) | |
1073 | type_op_error ("Arguments to %s must be of integral type.", op); | |
c906108c SS |
1074 | break; |
1075 | ||
c5aa993b JM |
1076 | case BINOP_LESS: |
1077 | case BINOP_GTR: | |
1078 | case BINOP_LEQ: | |
1079 | case BINOP_GEQ: | |
1080 | if (!ordered_type (t1) || !ordered_type (t2)) | |
1081 | type_op_error ("Arguments to %s must be of ordered type.", op); | |
1082 | else if (!same_type (t1, t2)) | |
1083 | type_op_error ("Arguments to %s must be of the same type.", op); | |
c906108c SS |
1084 | break; |
1085 | ||
c5aa993b JM |
1086 | case BINOP_ASSIGN: |
1087 | if (pointer_type (t1) && !integral_type (t2)) | |
1088 | type_op_error ("A pointer can only be assigned an integer.", op); | |
1089 | else if (pointer_type (t1) && integral_type (t2)) | |
1090 | { | |
1091 | warning ("combining integer and pointer."); | |
1092 | break; | |
1093 | } | |
1094 | else if (!simple_type (t1) || !simple_type (t2)) | |
1095 | type_op_error ("Arguments to %s must be of simple type.", op); | |
1096 | else if (!same_type (t1, t2)) | |
1097 | type_op_error ("Arguments to %s must be of the same type.", op); | |
c906108c SS |
1098 | break; |
1099 | ||
1100 | case BINOP_CONCAT: | |
1101 | /* FIXME: Needs to handle bitstrings as well. */ | |
c5aa993b JM |
1102 | if (!(string_type (t1) || character_type (t1) || integral_type (t1)) |
1103 | || !(string_type (t2) || character_type (t2) || integral_type (t2))) | |
1104 | type_op_error ("Arguments to %s must be strings or characters.", op); | |
c906108c SS |
1105 | break; |
1106 | ||
c5aa993b | 1107 | /* Unary checks -- arg2 is null */ |
c906108c | 1108 | |
c5aa993b JM |
1109 | case UNOP_LOGICAL_NOT: |
1110 | if (!boolean_type (t1)) | |
1111 | type_op_error ("Argument to %s must be of boolean type.", op); | |
c906108c SS |
1112 | break; |
1113 | ||
c5aa993b JM |
1114 | case UNOP_PLUS: |
1115 | case UNOP_NEG: | |
1116 | if (!numeric_type (t1)) | |
1117 | type_op_error ("Argument to %s must be of numeric type.", op); | |
c906108c SS |
1118 | break; |
1119 | ||
c5aa993b JM |
1120 | case UNOP_IND: |
1121 | if (integral_type (t1)) | |
1122 | { | |
1123 | warning ("combining pointer and integer.\n"); | |
1124 | break; | |
1125 | } | |
1126 | else if (!pointer_type (t1)) | |
1127 | type_op_error ("Argument to %s must be a pointer.", op); | |
c906108c SS |
1128 | break; |
1129 | ||
c5aa993b JM |
1130 | case UNOP_PREINCREMENT: |
1131 | case UNOP_POSTINCREMENT: | |
1132 | case UNOP_PREDECREMENT: | |
1133 | case UNOP_POSTDECREMENT: | |
1134 | if (!ordered_type (t1)) | |
1135 | type_op_error ("Argument to %s must be of an ordered type.", op); | |
c906108c SS |
1136 | break; |
1137 | ||
c5aa993b | 1138 | default: |
c906108c | 1139 | /* Ok. The following operators have different meanings in |
c5aa993b JM |
1140 | different languages. */ |
1141 | switch (current_language->la_language) | |
1142 | { | |
c906108c | 1143 | #ifdef _LANG_c |
c5aa993b JM |
1144 | case language_c: |
1145 | case language_cplus: | |
1146 | switch (op) | |
1147 | { | |
1148 | case BINOP_DIV: | |
1149 | if (!numeric_type (t1) || !numeric_type (t2)) | |
1150 | type_op_error ("Arguments to %s must be numbers.", op); | |
1151 | break; | |
1152 | } | |
1153 | break; | |
c906108c SS |
1154 | #endif |
1155 | ||
1156 | #ifdef _LANG_m2 | |
c5aa993b JM |
1157 | case language_m2: |
1158 | switch (op) | |
1159 | { | |
1160 | case BINOP_DIV: | |
1161 | if (!float_type (t1) || !float_type (t2)) | |
1162 | type_op_error ("Arguments to %s must be floating point numbers.", op); | |
1163 | break; | |
1164 | case BINOP_INTDIV: | |
1165 | if (!integral_type (t1) || !integral_type (t2)) | |
1166 | type_op_error ("Arguments to %s must be of integral type.", op); | |
1167 | break; | |
1168 | } | |
c906108c SS |
1169 | #endif |
1170 | ||
1171 | #ifdef _LANG_chill | |
c5aa993b JM |
1172 | case language_chill: |
1173 | error ("Missing Chill support in function binop_type_check."); /*FIXME */ | |
c906108c SS |
1174 | #endif |
1175 | ||
c5aa993b JM |
1176 | } |
1177 | } | |
c906108c SS |
1178 | } |
1179 | ||
c5aa993b | 1180 | #endif /* 0 */ |
c906108c | 1181 | \f |
c5aa993b | 1182 | |
c906108c SS |
1183 | /* This page contains functions for the printing out of |
1184 | error messages that occur during type- and range- | |
1185 | checking. */ | |
1186 | ||
1187 | /* Prints the format string FMT with the operator as a string | |
1188 | corresponding to the opcode OP. If FATAL is non-zero, then | |
1189 | this is an error and error () is called. Otherwise, it is | |
1190 | a warning and printf() is called. */ | |
1191 | void | |
c5aa993b JM |
1192 | op_error (fmt, op, fatal) |
1193 | char *fmt; | |
1194 | enum exp_opcode op; | |
1195 | int fatal; | |
c906108c | 1196 | { |
c5aa993b JM |
1197 | if (fatal) |
1198 | error (fmt, op_string (op)); | |
1199 | else | |
1200 | { | |
1201 | warning (fmt, op_string (op)); | |
1202 | } | |
c906108c SS |
1203 | } |
1204 | ||
1205 | /* These are called when a language fails a type- or range-check. | |
1206 | The first argument should be a printf()-style format string, and | |
1207 | the rest of the arguments should be its arguments. If | |
1208 | [type|range]_check is [type|range]_check_on, then return_to_top_level() | |
1209 | is called in the style of error (). Otherwise, the message is prefixed | |
1210 | by the value of warning_pre_print and we do not return to the top level. */ | |
1211 | ||
1212 | void | |
c5aa993b | 1213 | type_error (char *string,...) |
c906108c | 1214 | { |
c5aa993b | 1215 | va_list args; |
c5aa993b | 1216 | va_start (args, string); |
c906108c | 1217 | |
c5aa993b JM |
1218 | if (type_check == type_check_warn) |
1219 | fprintf_filtered (gdb_stderr, warning_pre_print); | |
1220 | else | |
1221 | error_begin (); | |
c906108c | 1222 | |
c5aa993b JM |
1223 | vfprintf_filtered (gdb_stderr, string, args); |
1224 | fprintf_filtered (gdb_stderr, "\n"); | |
1225 | va_end (args); | |
1226 | if (type_check == type_check_on) | |
1227 | return_to_top_level (RETURN_ERROR); | |
c906108c SS |
1228 | } |
1229 | ||
1230 | void | |
c5aa993b | 1231 | range_error (char *string,...) |
c906108c | 1232 | { |
c5aa993b | 1233 | va_list args; |
c5aa993b | 1234 | va_start (args, string); |
c906108c | 1235 | |
c5aa993b JM |
1236 | if (range_check == range_check_warn) |
1237 | fprintf_filtered (gdb_stderr, warning_pre_print); | |
1238 | else | |
1239 | error_begin (); | |
c906108c | 1240 | |
c5aa993b JM |
1241 | vfprintf_filtered (gdb_stderr, string, args); |
1242 | fprintf_filtered (gdb_stderr, "\n"); | |
1243 | va_end (args); | |
1244 | if (range_check == range_check_on) | |
1245 | return_to_top_level (RETURN_ERROR); | |
c906108c | 1246 | } |
c906108c | 1247 | \f |
c5aa993b | 1248 | |
c906108c SS |
1249 | /* This page contains miscellaneous functions */ |
1250 | ||
1251 | /* Return the language enum for a given language string. */ | |
1252 | ||
1253 | enum language | |
1254 | language_enum (str) | |
1255 | char *str; | |
1256 | { | |
1257 | int i; | |
1258 | ||
c5aa993b | 1259 | for (i = 0; i < languages_size; i++) |
c906108c SS |
1260 | if (STREQ (languages[i]->la_name, str)) |
1261 | return languages[i]->la_language; | |
1262 | ||
1263 | return language_unknown; | |
1264 | } | |
1265 | ||
1266 | /* Return the language struct for a given language enum. */ | |
1267 | ||
1268 | const struct language_defn * | |
c5aa993b JM |
1269 | language_def (lang) |
1270 | enum language lang; | |
c906108c SS |
1271 | { |
1272 | int i; | |
1273 | ||
c5aa993b JM |
1274 | for (i = 0; i < languages_size; i++) |
1275 | { | |
1276 | if (languages[i]->la_language == lang) | |
1277 | { | |
1278 | return languages[i]; | |
1279 | } | |
c906108c | 1280 | } |
c906108c SS |
1281 | return NULL; |
1282 | } | |
1283 | ||
1284 | /* Return the language as a string */ | |
1285 | char * | |
c5aa993b JM |
1286 | language_str (lang) |
1287 | enum language lang; | |
c906108c SS |
1288 | { |
1289 | int i; | |
1290 | ||
c5aa993b JM |
1291 | for (i = 0; i < languages_size; i++) |
1292 | { | |
1293 | if (languages[i]->la_language == lang) | |
1294 | { | |
1295 | return languages[i]->la_name; | |
1296 | } | |
c906108c | 1297 | } |
c906108c SS |
1298 | return "Unknown"; |
1299 | } | |
1300 | ||
1301 | static void | |
1302 | set_check (ignore, from_tty) | |
c5aa993b JM |
1303 | char *ignore; |
1304 | int from_tty; | |
c906108c | 1305 | { |
c5aa993b JM |
1306 | printf_unfiltered ( |
1307 | "\"set check\" must be followed by the name of a check subcommand.\n"); | |
1308 | help_list (setchecklist, "set check ", -1, gdb_stdout); | |
c906108c SS |
1309 | } |
1310 | ||
1311 | static void | |
1312 | show_check (ignore, from_tty) | |
c5aa993b JM |
1313 | char *ignore; |
1314 | int from_tty; | |
c906108c | 1315 | { |
c5aa993b | 1316 | cmd_show_list (showchecklist, from_tty, ""); |
c906108c SS |
1317 | } |
1318 | \f | |
1319 | /* Add a language to the set of known languages. */ | |
1320 | ||
1321 | void | |
1322 | add_language (lang) | |
1323 | const struct language_defn *lang; | |
1324 | { | |
1325 | if (lang->la_magic != LANG_MAGIC) | |
1326 | { | |
c5aa993b JM |
1327 | fprintf_unfiltered (gdb_stderr, "Magic number of %s language struct wrong\n", |
1328 | lang->la_name); | |
1329 | abort (); | |
c906108c SS |
1330 | } |
1331 | ||
1332 | if (!languages) | |
1333 | { | |
1334 | languages_allocsize = DEFAULT_ALLOCSIZE; | |
1335 | languages = (const struct language_defn **) xmalloc | |
1336 | (languages_allocsize * sizeof (*languages)); | |
1337 | } | |
1338 | if (languages_size >= languages_allocsize) | |
1339 | { | |
1340 | languages_allocsize *= 2; | |
1341 | languages = (const struct language_defn **) xrealloc ((char *) languages, | |
c5aa993b | 1342 | languages_allocsize * sizeof (*languages)); |
c906108c SS |
1343 | } |
1344 | languages[languages_size++] = lang; | |
1345 | } | |
1346 | ||
1347 | /* Define the language that is no language. */ | |
1348 | ||
1349 | static int | |
1350 | unk_lang_parser () | |
1351 | { | |
1352 | return 1; | |
1353 | } | |
1354 | ||
1355 | static void | |
1356 | unk_lang_error (msg) | |
1357 | char *msg; | |
1358 | { | |
1359 | error ("Attempted to parse an expression with unknown language"); | |
1360 | } | |
1361 | ||
1362 | static void | |
1363 | unk_lang_emit_char (c, stream, quoter) | |
1364 | register int c; | |
d9fcf2fb | 1365 | struct ui_file *stream; |
c906108c SS |
1366 | int quoter; |
1367 | { | |
1368 | error ("internal error - unimplemented function unk_lang_emit_char called."); | |
1369 | } | |
1370 | ||
1371 | static void | |
1372 | unk_lang_printchar (c, stream) | |
1373 | register int c; | |
d9fcf2fb | 1374 | struct ui_file *stream; |
c906108c SS |
1375 | { |
1376 | error ("internal error - unimplemented function unk_lang_printchar called."); | |
1377 | } | |
1378 | ||
1379 | static void | |
1380 | unk_lang_printstr (stream, string, length, width, force_ellipses) | |
d9fcf2fb | 1381 | struct ui_file *stream; |
c906108c SS |
1382 | char *string; |
1383 | unsigned int length; | |
1384 | int width; | |
1385 | int force_ellipses; | |
1386 | { | |
1387 | error ("internal error - unimplemented function unk_lang_printstr called."); | |
1388 | } | |
1389 | ||
1390 | static struct type * | |
1391 | unk_lang_create_fundamental_type (objfile, typeid) | |
1392 | struct objfile *objfile; | |
1393 | int typeid; | |
1394 | { | |
1395 | error ("internal error - unimplemented function unk_lang_create_fundamental_type called."); | |
1396 | } | |
1397 | ||
1398 | static void | |
1399 | unk_lang_print_type (type, varstring, stream, show, level) | |
1400 | struct type *type; | |
1401 | char *varstring; | |
d9fcf2fb | 1402 | struct ui_file *stream; |
c906108c SS |
1403 | int show; |
1404 | int level; | |
1405 | { | |
1406 | error ("internal error - unimplemented function unk_lang_print_type called."); | |
1407 | } | |
1408 | ||
1409 | static int | |
c5aa993b | 1410 | unk_lang_val_print (type, valaddr, embedded_offset, address, stream, format, deref_ref, |
c906108c SS |
1411 | recurse, pretty) |
1412 | struct type *type; | |
1413 | char *valaddr; | |
1414 | int embedded_offset; | |
1415 | CORE_ADDR address; | |
d9fcf2fb | 1416 | struct ui_file *stream; |
c906108c SS |
1417 | int format; |
1418 | int deref_ref; | |
1419 | int recurse; | |
1420 | enum val_prettyprint pretty; | |
1421 | { | |
1422 | error ("internal error - unimplemented function unk_lang_val_print called."); | |
1423 | } | |
1424 | ||
1425 | static int | |
1426 | unk_lang_value_print (val, stream, format, pretty) | |
1427 | value_ptr val; | |
d9fcf2fb | 1428 | struct ui_file *stream; |
c906108c SS |
1429 | int format; |
1430 | enum val_prettyprint pretty; | |
1431 | { | |
1432 | error ("internal error - unimplemented function unk_lang_value_print called."); | |
1433 | } | |
1434 | ||
c5aa993b JM |
1435 | static struct type **CONST_PTR (unknown_builtin_types[]) = |
1436 | { | |
1437 | 0 | |
1438 | }; | |
1439 | static const struct op_print unk_op_print_tab[] = | |
1440 | { | |
1441 | {NULL, OP_NULL, PREC_NULL, 0} | |
c906108c SS |
1442 | }; |
1443 | ||
c5aa993b JM |
1444 | const struct language_defn unknown_language_defn = |
1445 | { | |
c906108c SS |
1446 | "unknown", |
1447 | language_unknown, | |
1448 | &unknown_builtin_types[0], | |
1449 | range_check_off, | |
1450 | type_check_off, | |
1451 | unk_lang_parser, | |
1452 | unk_lang_error, | |
1453 | evaluate_subexp_standard, | |
1454 | unk_lang_printchar, /* Print character constant */ | |
1455 | unk_lang_printstr, | |
1456 | unk_lang_emit_char, | |
1457 | unk_lang_create_fundamental_type, | |
1458 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1459 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1460 | unk_lang_value_print, /* Print a top-level value */ | |
c5aa993b JM |
1461 | {"", "", "", ""}, /* Binary format info */ |
1462 | {"0%lo", "0", "o", ""}, /* Octal format info */ | |
1463 | {"%ld", "", "d", ""}, /* Decimal format info */ | |
1464 | {"0x%lx", "0x", "x", ""}, /* Hex format info */ | |
c906108c SS |
1465 | unk_op_print_tab, /* expression operators for printing */ |
1466 | 1, /* c-style arrays */ | |
1467 | 0, /* String lower bound */ | |
c5aa993b | 1468 | &builtin_type_char, /* Type of string elements */ |
c906108c SS |
1469 | LANG_MAGIC |
1470 | }; | |
1471 | ||
1472 | /* These two structs define fake entries for the "local" and "auto" options. */ | |
c5aa993b JM |
1473 | const struct language_defn auto_language_defn = |
1474 | { | |
c906108c SS |
1475 | "auto", |
1476 | language_auto, | |
1477 | &unknown_builtin_types[0], | |
1478 | range_check_off, | |
1479 | type_check_off, | |
1480 | unk_lang_parser, | |
1481 | unk_lang_error, | |
1482 | evaluate_subexp_standard, | |
1483 | unk_lang_printchar, /* Print character constant */ | |
1484 | unk_lang_printstr, | |
1485 | unk_lang_emit_char, | |
1486 | unk_lang_create_fundamental_type, | |
1487 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1488 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1489 | unk_lang_value_print, /* Print a top-level value */ | |
c5aa993b JM |
1490 | {"", "", "", ""}, /* Binary format info */ |
1491 | {"0%lo", "0", "o", ""}, /* Octal format info */ | |
1492 | {"%ld", "", "d", ""}, /* Decimal format info */ | |
1493 | {"0x%lx", "0x", "x", ""}, /* Hex format info */ | |
c906108c SS |
1494 | unk_op_print_tab, /* expression operators for printing */ |
1495 | 1, /* c-style arrays */ | |
1496 | 0, /* String lower bound */ | |
c5aa993b | 1497 | &builtin_type_char, /* Type of string elements */ |
c906108c SS |
1498 | LANG_MAGIC |
1499 | }; | |
1500 | ||
c5aa993b JM |
1501 | const struct language_defn local_language_defn = |
1502 | { | |
c906108c SS |
1503 | "local", |
1504 | language_auto, | |
1505 | &unknown_builtin_types[0], | |
1506 | range_check_off, | |
1507 | type_check_off, | |
1508 | unk_lang_parser, | |
1509 | unk_lang_error, | |
1510 | evaluate_subexp_standard, | |
1511 | unk_lang_printchar, /* Print character constant */ | |
1512 | unk_lang_printstr, | |
1513 | unk_lang_emit_char, | |
1514 | unk_lang_create_fundamental_type, | |
1515 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1516 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1517 | unk_lang_value_print, /* Print a top-level value */ | |
c5aa993b JM |
1518 | {"", "", "", ""}, /* Binary format info */ |
1519 | {"0%lo", "0", "o", ""}, /* Octal format info */ | |
1520 | {"%ld", "", "d", ""}, /* Decimal format info */ | |
1521 | {"0x%lx", "0x", "x", ""}, /* Hex format info */ | |
c906108c SS |
1522 | unk_op_print_tab, /* expression operators for printing */ |
1523 | 1, /* c-style arrays */ | |
1524 | 0, /* String lower bound */ | |
c5aa993b | 1525 | &builtin_type_char, /* Type of string elements */ |
c906108c SS |
1526 | LANG_MAGIC |
1527 | }; | |
1528 | \f | |
1529 | /* Initialize the language routines */ | |
1530 | ||
1531 | void | |
c5aa993b | 1532 | _initialize_language () |
c906108c | 1533 | { |
c5aa993b JM |
1534 | struct cmd_list_element *set, *show; |
1535 | ||
1536 | /* GDB commands for language specific stuff */ | |
1537 | ||
1538 | set = add_set_cmd ("language", class_support, var_string_noescape, | |
1539 | (char *) &language, | |
1540 | "Set the current source language.", | |
1541 | &setlist); | |
1542 | show = add_show_from_set (set, &showlist); | |
1543 | set->function.cfunc = set_language_command; | |
1544 | show->function.cfunc = show_language_command; | |
1545 | ||
1546 | add_prefix_cmd ("check", no_class, set_check, | |
1547 | "Set the status of the type/range checker", | |
1548 | &setchecklist, "set check ", 0, &setlist); | |
1549 | add_alias_cmd ("c", "check", no_class, 1, &setlist); | |
1550 | add_alias_cmd ("ch", "check", no_class, 1, &setlist); | |
1551 | ||
1552 | add_prefix_cmd ("check", no_class, show_check, | |
1553 | "Show the status of the type/range checker", | |
1554 | &showchecklist, "show check ", 0, &showlist); | |
1555 | add_alias_cmd ("c", "check", no_class, 1, &showlist); | |
1556 | add_alias_cmd ("ch", "check", no_class, 1, &showlist); | |
1557 | ||
1558 | set = add_set_cmd ("type", class_support, var_string_noescape, | |
1559 | (char *) &type, | |
1560 | "Set type checking. (on/warn/off/auto)", | |
1561 | &setchecklist); | |
1562 | show = add_show_from_set (set, &showchecklist); | |
1563 | set->function.cfunc = set_type_command; | |
1564 | show->function.cfunc = show_type_command; | |
1565 | ||
1566 | set = add_set_cmd ("range", class_support, var_string_noescape, | |
1567 | (char *) &range, | |
1568 | "Set range checking. (on/warn/off/auto)", | |
1569 | &setchecklist); | |
1570 | show = add_show_from_set (set, &showchecklist); | |
1571 | set->function.cfunc = set_range_command; | |
1572 | show->function.cfunc = show_range_command; | |
1573 | ||
1574 | add_language (&unknown_language_defn); | |
1575 | add_language (&local_language_defn); | |
1576 | add_language (&auto_language_defn); | |
1577 | ||
1578 | language = savestring ("auto", strlen ("auto")); | |
c5aa993b | 1579 | set_language_command (language, 0); |
ed9a39eb JM |
1580 | |
1581 | type = savestring ("auto", strlen ("auto")); | |
c5aa993b | 1582 | set_type_command (NULL, 0); |
ed9a39eb JM |
1583 | |
1584 | range = savestring ("auto", strlen ("auto")); | |
c5aa993b | 1585 | set_range_command (NULL, 0); |
c906108c | 1586 | } |