Commit | Line | Data |
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c906108c SS |
1 | /* Multiple source language support for GDB. |
2 | Copyright 1991, 1992 Free Software Foundation, Inc. | |
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 | ||
89 | static void | |
c5aa993b | 90 | unk_lang_emit_char PARAMS ((int c, GDB_FILE * stream, int quoter)); |
c906108c SS |
91 | |
92 | static void | |
c5aa993b | 93 | unk_lang_printchar PARAMS ((int c, GDB_FILE * stream)); |
c906108c SS |
94 | |
95 | static void | |
c5aa993b | 96 | unk_lang_printstr PARAMS ((GDB_FILE * stream, char *string, unsigned int length, int width, int force_ellipses)); |
c906108c SS |
97 | |
98 | static struct type * | |
c5aa993b | 99 | unk_lang_create_fundamental_type PARAMS ((struct objfile *, int)); |
c906108c SS |
100 | |
101 | static void | |
102 | unk_lang_print_type PARAMS ((struct type *, char *, GDB_FILE *, int, int)); | |
103 | ||
104 | static int | |
105 | unk_lang_val_print PARAMS ((struct type *, char *, int, CORE_ADDR, GDB_FILE *, | |
106 | int, int, int, enum val_prettyprint)); | |
107 | ||
108 | static int | |
109 | unk_lang_value_print PARAMS ((value_ptr, GDB_FILE *, int, enum val_prettyprint)); | |
110 | ||
111 | /* Forward declaration */ | |
112 | extern const struct language_defn unknown_language_defn; | |
113 | extern char *warning_pre_print; | |
c5aa993b | 114 | |
c906108c | 115 | /* The current (default at startup) state of type and range checking. |
c5aa993b JM |
116 | (If the modes are set to "auto", though, these are changed based |
117 | on the default language at startup, and then again based on the | |
118 | language of the first source file. */ | |
c906108c SS |
119 | |
120 | enum range_mode range_mode = range_mode_auto; | |
121 | enum range_check range_check = range_check_off; | |
122 | enum type_mode type_mode = type_mode_auto; | |
123 | enum type_check type_check = type_check_off; | |
124 | ||
125 | /* The current language and language_mode (see language.h) */ | |
126 | ||
127 | const struct language_defn *current_language = &unknown_language_defn; | |
128 | enum language_mode language_mode = language_mode_auto; | |
129 | ||
130 | /* The language that the user expects to be typing in (the language | |
131 | of main(), or the last language we notified them about, or C). */ | |
132 | ||
133 | const struct language_defn *expected_language; | |
134 | ||
135 | /* The list of supported languages. The list itself is malloc'd. */ | |
136 | ||
137 | static const struct language_defn **languages; | |
138 | static unsigned languages_size; | |
139 | static unsigned languages_allocsize; | |
140 | #define DEFAULT_ALLOCSIZE 4 | |
141 | ||
142 | /* The "set language/type/range" commands all put stuff in these | |
143 | buffers. This is to make them work as set/show commands. The | |
144 | user's string is copied here, then the set_* commands look at | |
145 | them and update them to something that looks nice when it is | |
146 | printed out. */ | |
147 | ||
148 | static char *language; | |
149 | static char *type; | |
150 | static char *range; | |
151 | ||
152 | /* Warning issued when current_language and the language of the current | |
153 | frame do not match. */ | |
154 | char lang_frame_mismatch_warn[] = | |
c5aa993b | 155 | "Warning: the current language does not match this frame."; |
c906108c | 156 | \f |
c5aa993b | 157 | |
c906108c SS |
158 | /* This page contains the functions corresponding to GDB commands |
159 | and their helpers. */ | |
160 | ||
161 | /* Show command. Display a warning if the language set | |
162 | does not match the frame. */ | |
163 | static void | |
164 | show_language_command (ignore, from_tty) | |
c5aa993b JM |
165 | char *ignore; |
166 | int from_tty; | |
c906108c | 167 | { |
c5aa993b | 168 | enum language flang; /* The language of the current frame */ |
c906108c | 169 | |
c5aa993b JM |
170 | flang = get_frame_language (); |
171 | if (flang != language_unknown && | |
172 | language_mode == language_mode_manual && | |
173 | current_language->la_language != flang) | |
174 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
c906108c SS |
175 | } |
176 | ||
177 | /* Set command. Change the current working language. */ | |
178 | static void | |
179 | set_language_command (ignore, from_tty) | |
c5aa993b JM |
180 | char *ignore; |
181 | int from_tty; | |
c906108c SS |
182 | { |
183 | int i; | |
184 | enum language flang; | |
185 | char *err_lang; | |
186 | ||
187 | if (!language || !language[0]) | |
188 | { | |
c5aa993b | 189 | printf_unfiltered ("The currently understood settings are:\n\n"); |
c906108c SS |
190 | printf_unfiltered ("local or auto Automatic setting based on source file\n"); |
191 | ||
192 | for (i = 0; i < languages_size; ++i) | |
193 | { | |
194 | /* Already dealt with these above. */ | |
195 | if (languages[i]->la_language == language_unknown | |
196 | || languages[i]->la_language == language_auto) | |
197 | continue; | |
198 | ||
199 | /* FIXME for now assume that the human-readable name is just | |
200 | a capitalization of the internal name. */ | |
201 | printf_unfiltered ("%-16s Use the %c%s language\n", | |
202 | languages[i]->la_name, | |
c5aa993b JM |
203 | /* Capitalize first letter of language |
204 | name. */ | |
c906108c SS |
205 | toupper (languages[i]->la_name[0]), |
206 | languages[i]->la_name + 1); | |
207 | } | |
208 | /* Restore the silly string. */ | |
c5aa993b | 209 | set_language (current_language->la_language); |
c906108c SS |
210 | return; |
211 | } | |
212 | ||
213 | /* Search the list of languages for a match. */ | |
c5aa993b JM |
214 | for (i = 0; i < languages_size; i++) |
215 | { | |
216 | if (STREQ (languages[i]->la_name, language)) | |
217 | { | |
218 | /* Found it! Go into manual mode, and use this language. */ | |
219 | if (languages[i]->la_language == language_auto) | |
220 | { | |
221 | /* Enter auto mode. Set to the current frame's language, if known. */ | |
222 | language_mode = language_mode_auto; | |
223 | flang = get_frame_language (); | |
224 | if (flang != language_unknown) | |
225 | set_language (flang); | |
226 | expected_language = current_language; | |
227 | return; | |
228 | } | |
229 | else | |
230 | { | |
231 | /* Enter manual mode. Set the specified language. */ | |
232 | language_mode = language_mode_manual; | |
233 | current_language = languages[i]; | |
234 | set_type_range (); | |
235 | set_lang_str (); | |
236 | expected_language = current_language; | |
237 | return; | |
238 | } | |
239 | } | |
c906108c | 240 | } |
c906108c SS |
241 | |
242 | /* Reset the language (esp. the global string "language") to the | |
243 | correct values. */ | |
c5aa993b | 244 | err_lang = savestring (language, strlen (language)); |
c906108c | 245 | make_cleanup (free, err_lang); /* Free it after error */ |
c5aa993b JM |
246 | set_language (current_language->la_language); |
247 | error ("Unknown language `%s'.", err_lang); | |
c906108c SS |
248 | } |
249 | ||
250 | /* Show command. Display a warning if the type setting does | |
251 | not match the current language. */ | |
252 | static void | |
c5aa993b JM |
253 | show_type_command (ignore, from_tty) |
254 | char *ignore; | |
255 | int from_tty; | |
c906108c | 256 | { |
c5aa993b JM |
257 | if (type_check != current_language->la_type_check) |
258 | printf_unfiltered ( | |
259 | "Warning: the current type check setting does not match the language.\n"); | |
c906108c SS |
260 | } |
261 | ||
262 | /* Set command. Change the setting for type checking. */ | |
263 | static void | |
c5aa993b JM |
264 | set_type_command (ignore, from_tty) |
265 | char *ignore; | |
266 | int from_tty; | |
c906108c | 267 | { |
c5aa993b JM |
268 | if (STREQ (type, "on")) |
269 | { | |
c906108c SS |
270 | type_check = type_check_on; |
271 | type_mode = type_mode_manual; | |
c5aa993b JM |
272 | } |
273 | else if (STREQ (type, "warn")) | |
274 | { | |
c906108c SS |
275 | type_check = type_check_warn; |
276 | type_mode = type_mode_manual; | |
c5aa993b JM |
277 | } |
278 | else if (STREQ (type, "off")) | |
279 | { | |
c906108c SS |
280 | type_check = type_check_off; |
281 | type_mode = type_mode_manual; | |
c5aa993b JM |
282 | } |
283 | else if (STREQ (type, "auto")) | |
284 | { | |
c906108c | 285 | type_mode = type_mode_auto; |
c5aa993b | 286 | set_type_range (); |
c906108c SS |
287 | /* Avoid hitting the set_type_str call below. We |
288 | did it in set_type_range. */ | |
289 | return; | |
c5aa993b | 290 | } |
c4093a6a JM |
291 | else |
292 | { | |
293 | warning ("Unrecognized type check setting: \"%s\"", type); | |
294 | } | |
c5aa993b JM |
295 | set_type_str (); |
296 | show_type_command ((char *) NULL, from_tty); | |
c906108c SS |
297 | } |
298 | ||
299 | /* Show command. Display a warning if the range setting does | |
300 | not match the current language. */ | |
301 | static void | |
c5aa993b JM |
302 | show_range_command (ignore, from_tty) |
303 | char *ignore; | |
304 | int from_tty; | |
c906108c SS |
305 | { |
306 | ||
c5aa993b JM |
307 | if (range_check != current_language->la_range_check) |
308 | printf_unfiltered ( | |
309 | "Warning: the current range check setting does not match the language.\n"); | |
c906108c SS |
310 | } |
311 | ||
312 | /* Set command. Change the setting for range checking. */ | |
313 | static void | |
c5aa993b JM |
314 | set_range_command (ignore, from_tty) |
315 | char *ignore; | |
316 | int from_tty; | |
c906108c | 317 | { |
c5aa993b JM |
318 | if (STREQ (range, "on")) |
319 | { | |
c906108c SS |
320 | range_check = range_check_on; |
321 | range_mode = range_mode_manual; | |
c5aa993b JM |
322 | } |
323 | else if (STREQ (range, "warn")) | |
324 | { | |
c906108c SS |
325 | range_check = range_check_warn; |
326 | range_mode = range_mode_manual; | |
c5aa993b JM |
327 | } |
328 | else if (STREQ (range, "off")) | |
329 | { | |
c906108c SS |
330 | range_check = range_check_off; |
331 | range_mode = range_mode_manual; | |
c5aa993b JM |
332 | } |
333 | else if (STREQ (range, "auto")) | |
334 | { | |
c906108c | 335 | range_mode = range_mode_auto; |
c5aa993b | 336 | set_type_range (); |
c906108c | 337 | /* Avoid hitting the set_range_str call below. We |
c5aa993b | 338 | did it in set_type_range. */ |
c906108c | 339 | return; |
c5aa993b | 340 | } |
c4093a6a JM |
341 | else |
342 | { | |
343 | warning ("Unrecognized range check setting: \"%s\"", range); | |
344 | } | |
c5aa993b JM |
345 | set_range_str (); |
346 | show_range_command ((char *) 0, from_tty); | |
c906108c SS |
347 | } |
348 | ||
349 | /* Set the status of range and type checking based on | |
350 | the current modes and the current language. | |
351 | If SHOW is non-zero, then print out the current language, | |
352 | type and range checking status. */ | |
353 | static void | |
c5aa993b | 354 | set_type_range () |
c906108c SS |
355 | { |
356 | ||
357 | if (range_mode == range_mode_auto) | |
358 | range_check = current_language->la_range_check; | |
359 | ||
360 | if (type_mode == type_mode_auto) | |
361 | type_check = current_language->la_type_check; | |
362 | ||
c5aa993b JM |
363 | set_type_str (); |
364 | set_range_str (); | |
c906108c SS |
365 | } |
366 | ||
367 | /* Set current language to (enum language) LANG. Returns previous language. */ | |
368 | ||
369 | enum language | |
c5aa993b JM |
370 | set_language (lang) |
371 | enum language lang; | |
c906108c SS |
372 | { |
373 | int i; | |
374 | enum language prev_language; | |
375 | ||
376 | prev_language = current_language->la_language; | |
377 | ||
c5aa993b JM |
378 | for (i = 0; i < languages_size; i++) |
379 | { | |
380 | if (languages[i]->la_language == lang) | |
381 | { | |
382 | current_language = languages[i]; | |
383 | set_type_range (); | |
384 | set_lang_str (); | |
385 | break; | |
386 | } | |
c906108c | 387 | } |
c906108c SS |
388 | |
389 | return prev_language; | |
390 | } | |
391 | \f | |
392 | /* This page contains functions that update the global vars | |
393 | language, type and range. */ | |
394 | static void | |
c5aa993b | 395 | set_lang_str () |
c906108c | 396 | { |
c5aa993b | 397 | char *prefix = ""; |
c906108c | 398 | |
c5aa993b JM |
399 | free (language); |
400 | if (language_mode == language_mode_auto) | |
401 | prefix = "auto; currently "; | |
c906108c | 402 | |
c5aa993b | 403 | language = concat (prefix, current_language->la_name, NULL); |
c906108c SS |
404 | } |
405 | ||
406 | static void | |
c5aa993b | 407 | set_type_str () |
c906108c | 408 | { |
c4093a6a | 409 | char *tmp = NULL, *prefix = ""; |
c906108c | 410 | |
c5aa993b JM |
411 | free (type); |
412 | if (type_mode == type_mode_auto) | |
413 | prefix = "auto; currently "; | |
c906108c | 414 | |
c5aa993b JM |
415 | switch (type_check) |
416 | { | |
417 | case type_check_on: | |
c906108c SS |
418 | tmp = "on"; |
419 | break; | |
c5aa993b | 420 | case type_check_off: |
c906108c SS |
421 | tmp = "off"; |
422 | break; | |
c5aa993b | 423 | case type_check_warn: |
c906108c SS |
424 | tmp = "warn"; |
425 | break; | |
c5aa993b | 426 | default: |
c906108c | 427 | error ("Unrecognized type check setting."); |
c5aa993b | 428 | } |
c906108c | 429 | |
c5aa993b | 430 | type = concat (prefix, tmp, NULL); |
c906108c SS |
431 | } |
432 | ||
433 | static void | |
c5aa993b | 434 | set_range_str () |
c906108c | 435 | { |
c5aa993b | 436 | char *tmp, *pref = ""; |
c906108c | 437 | |
c5aa993b JM |
438 | if (range_mode == range_mode_auto) |
439 | pref = "auto; currently "; | |
c906108c | 440 | |
c5aa993b JM |
441 | switch (range_check) |
442 | { | |
443 | case range_check_on: | |
c906108c SS |
444 | tmp = "on"; |
445 | break; | |
c5aa993b | 446 | case range_check_off: |
c906108c SS |
447 | tmp = "off"; |
448 | break; | |
c5aa993b | 449 | case range_check_warn: |
c906108c SS |
450 | tmp = "warn"; |
451 | break; | |
c5aa993b | 452 | default: |
c906108c | 453 | error ("Unrecognized range check setting."); |
c5aa993b | 454 | } |
c906108c | 455 | |
c4093a6a | 456 | free (range); |
c5aa993b | 457 | range = concat (pref, tmp, NULL); |
c906108c SS |
458 | } |
459 | ||
460 | ||
461 | /* Print out the current language settings: language, range and | |
462 | type checking. If QUIETLY, print only what has changed. */ | |
463 | ||
464 | void | |
465 | language_info (quietly) | |
466 | int quietly; | |
467 | { | |
468 | if (quietly && expected_language == current_language) | |
469 | return; | |
470 | ||
471 | expected_language = current_language; | |
c5aa993b JM |
472 | printf_unfiltered ("Current language: %s\n", language); |
473 | show_language_command ((char *) 0, 1); | |
c906108c SS |
474 | |
475 | if (!quietly) | |
476 | { | |
c5aa993b JM |
477 | printf_unfiltered ("Type checking: %s\n", type); |
478 | show_type_command ((char *) 0, 1); | |
479 | printf_unfiltered ("Range checking: %s\n", range); | |
480 | show_range_command ((char *) 0, 1); | |
c906108c SS |
481 | } |
482 | } | |
483 | \f | |
484 | /* Return the result of a binary operation. */ | |
485 | ||
c5aa993b | 486 | #if 0 /* Currently unused */ |
c906108c SS |
487 | |
488 | struct type * | |
489 | binop_result_type (v1, v2) | |
c5aa993b | 490 | value_ptr v1, v2; |
c906108c | 491 | { |
c5aa993b JM |
492 | int size, uns; |
493 | struct type *t1 = check_typedef (VALUE_TYPE (v1)); | |
494 | struct type *t2 = check_typedef (VALUE_TYPE (v2)); | |
495 | ||
496 | int l1 = TYPE_LENGTH (t1); | |
497 | int l2 = TYPE_LENGTH (t2); | |
498 | ||
499 | switch (current_language->la_language) | |
500 | { | |
501 | case language_c: | |
502 | case language_cplus: | |
503 | if (TYPE_CODE (t1) == TYPE_CODE_FLT) | |
504 | return TYPE_CODE (t2) == TYPE_CODE_FLT && l2 > l1 ? | |
505 | VALUE_TYPE (v2) : VALUE_TYPE (v1); | |
506 | else if (TYPE_CODE (t2) == TYPE_CODE_FLT) | |
507 | return TYPE_CODE (t1) == TYPE_CODE_FLT && l1 > l2 ? | |
508 | VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
509 | else if (TYPE_UNSIGNED (t1) && l1 > l2) | |
510 | return VALUE_TYPE (v1); | |
511 | else if (TYPE_UNSIGNED (t2) && l2 > l1) | |
512 | return VALUE_TYPE (v2); | |
513 | else /* Both are signed. Result is the longer type */ | |
514 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
c906108c | 515 | break; |
c5aa993b | 516 | case language_m2: |
c906108c | 517 | /* If we are doing type-checking, l1 should equal l2, so this is |
c5aa993b JM |
518 | not needed. */ |
519 | return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2); | |
c906108c | 520 | break; |
c5aa993b JM |
521 | case language_chill: |
522 | error ("Missing Chill support in function binop_result_check."); /*FIXME */ | |
523 | } | |
524 | abort (); | |
525 | return (struct type *) 0; /* For lint */ | |
c906108c SS |
526 | } |
527 | ||
c5aa993b | 528 | #endif /* 0 */ |
c906108c | 529 | \f |
c5aa993b | 530 | |
c906108c SS |
531 | /* This page contains functions that return format strings for |
532 | printf for printing out numbers in different formats */ | |
533 | ||
534 | /* Returns the appropriate printf format for hexadecimal | |
535 | numbers. */ | |
536 | char * | |
c5aa993b JM |
537 | local_hex_format_custom (pre) |
538 | char *pre; | |
c906108c | 539 | { |
c5aa993b JM |
540 | static char form[50]; |
541 | ||
542 | strcpy (form, local_hex_format_prefix ()); | |
543 | strcat (form, "%"); | |
544 | strcat (form, pre); | |
545 | strcat (form, local_hex_format_specifier ()); | |
546 | strcat (form, local_hex_format_suffix ()); | |
547 | return form; | |
c906108c SS |
548 | } |
549 | ||
c4093a6a JM |
550 | /* Converts a number to hexadecimal (without leading "0x") and stores it in a |
551 | static string. Returns a pointer to this string. */ | |
552 | ||
553 | char * | |
554 | longest_raw_hex_string (num) | |
555 | LONGEST num; | |
556 | { | |
557 | static char res_longest_raw_hex_string[50]; | |
558 | long long ll = num; /* MERGEBUG ?? see below */ | |
559 | res_longest_raw_hex_string[0] = 0; | |
560 | /* MERGEBUG ?? As a quick fix I am replacing this with sprintf | |
561 | strcat_address_numeric (num, 0, res_longest_raw_hex_string, 50); | |
562 | */ | |
563 | ||
564 | sprintf (res_longest_raw_hex_string, "%llx", ll); | |
565 | return res_longest_raw_hex_string; | |
566 | } | |
567 | ||
c906108c SS |
568 | /* Converts a number to hexadecimal and stores it in a static |
569 | string. Returns a pointer to this string. */ | |
570 | char * | |
571 | local_hex_string (num) | |
c5aa993b | 572 | unsigned long num; |
c906108c | 573 | { |
c5aa993b | 574 | static char res[50]; |
c906108c | 575 | |
c5aa993b JM |
576 | sprintf (res, local_hex_format (), num); |
577 | return res; | |
c906108c SS |
578 | } |
579 | ||
c4093a6a JM |
580 | /* Converts a LONGEST number to hexadecimal and stores it in a static |
581 | string. Returns a pointer to this string. */ | |
582 | char * | |
583 | longest_local_hex_string (num) | |
584 | LONGEST num; | |
585 | { | |
586 | return longest_local_hex_string_custom (num, "l"); | |
587 | } | |
588 | ||
c906108c SS |
589 | /* Converts a number to custom hexadecimal and stores it in a static |
590 | string. Returns a pointer to this string. */ | |
591 | char * | |
c5aa993b JM |
592 | local_hex_string_custom (num, pre) |
593 | unsigned long num; | |
594 | char *pre; | |
c906108c | 595 | { |
c5aa993b | 596 | static char res[50]; |
c906108c | 597 | |
c5aa993b JM |
598 | sprintf (res, local_hex_format_custom (pre), num); |
599 | return res; | |
c906108c SS |
600 | } |
601 | ||
c4093a6a JM |
602 | /* Converts a LONGEST number to custom hexadecimal and stores it in a static |
603 | string. Returns a pointer to this string. Note that the width parameter | |
604 | should end with "l", e.g. "08l" as with calls to local_hex_string_custom */ | |
605 | ||
606 | char * | |
607 | longest_local_hex_string_custom (num, width) | |
608 | LONGEST num; | |
609 | char *width; | |
610 | { | |
611 | #define RESULT_BUF_LEN 50 | |
612 | static char res2[RESULT_BUF_LEN]; | |
613 | char format[RESULT_BUF_LEN]; | |
614 | #if !defined (PRINTF_HAS_LONG_LONG) | |
615 | int field_width; | |
616 | int num_len; | |
617 | int num_pad_chars; | |
618 | char *pad_char; /* string with one character */ | |
619 | int pad_on_left; | |
620 | char *parse_ptr; | |
621 | char temp_nbr_buf[RESULT_BUF_LEN]; | |
622 | #endif | |
623 | ||
624 | #ifndef CC_HAS_LONG_LONG | |
625 | /* If there is no long long, then LONGEST should be just long and we | |
626 | can use local_hex_string_custom | |
627 | */ | |
628 | return local_hex_string_custom ((unsigned long) num, width); | |
629 | #endif | |
630 | ||
631 | #if defined (PRINTF_HAS_LONG_LONG) | |
632 | /* Just use printf. */ | |
633 | strcpy (format, local_hex_format_prefix ()); /* 0x */ | |
634 | strcat (format, "%"); | |
635 | strcat (format, width); /* e.g. "08l" */ | |
636 | strcat (format, "l"); /* need "ll" for long long */ | |
637 | strcat (format, local_hex_format_specifier ()); /* "x" */ | |
638 | strcat (format, local_hex_format_suffix ()); /* "" */ | |
639 | sprintf (res2, format, num); | |
640 | return res2; | |
641 | #else /* !defined (PRINTF_HAS_LONG_LONG) */ | |
642 | /* Use strcat_address_numeric to print the number into a string, then | |
643 | build the result string from local_hex_format_prefix, padding and | |
644 | the hex representation as indicated by "width". */ | |
645 | ||
646 | temp_nbr_buf[0] = 0; | |
647 | /* With use_local == 0, we don't get the leading "0x" prefix. */ | |
648 | /* MERGEBUG ?? As a quick fix I am replacing this call to | |
649 | strcat_address_numeric with sprintf | |
650 | strcat_address_numeric(num, 0, temp_nbr_buf, RESULT_BUF_LEN); | |
651 | */ | |
652 | ||
653 | { | |
654 | long long ll = num; | |
655 | sprintf (temp_nbr_buf, "%llx", ll); | |
656 | } | |
657 | /* parse width */ | |
658 | parse_ptr = width; | |
659 | pad_on_left = 1; | |
660 | pad_char = " "; | |
661 | if (*parse_ptr == '-') | |
662 | { | |
663 | parse_ptr++; | |
664 | pad_on_left = 0; | |
665 | } | |
666 | if (*parse_ptr == '0') | |
667 | { | |
668 | parse_ptr++; | |
669 | if (pad_on_left) | |
670 | pad_char = "0"; /* If padding is on the right, it is blank */ | |
671 | } | |
672 | field_width = atoi (parse_ptr); | |
673 | num_len = strlen (temp_nbr_buf); | |
674 | num_pad_chars = field_width - strlen (temp_nbr_buf); /* possibly negative */ | |
675 | ||
676 | if (strlen (local_hex_format_prefix ()) + num_len + num_pad_chars | |
677 | < RESULT_BUF_LEN) /* paranoia */ | |
678 | internal_error ("longest_local_hex_string_custom: insufficient space to store result"); | |
679 | ||
680 | strcpy (res2, local_hex_format_prefix ()); | |
681 | if (pad_on_left) | |
682 | { | |
683 | while (num_pad_chars > 0) | |
684 | { | |
685 | strcat (res2, pad_char); | |
686 | num_pad_chars--; | |
687 | } | |
688 | } | |
689 | strcat (res2, temp_nbr_buf); | |
690 | if (!pad_on_left) | |
691 | { | |
692 | while (num_pad_chars > 0) | |
693 | { | |
694 | strcat (res2, pad_char); | |
695 | num_pad_chars--; | |
696 | } | |
697 | } | |
698 | return res2; | |
699 | #endif | |
700 | ||
701 | } /* longest_local_hex_string_custom */ | |
702 | ||
c906108c SS |
703 | /* Returns the appropriate printf format for octal |
704 | numbers. */ | |
705 | char * | |
c5aa993b JM |
706 | local_octal_format_custom (pre) |
707 | char *pre; | |
c906108c | 708 | { |
c5aa993b JM |
709 | static char form[50]; |
710 | ||
711 | strcpy (form, local_octal_format_prefix ()); | |
712 | strcat (form, "%"); | |
713 | strcat (form, pre); | |
714 | strcat (form, local_octal_format_specifier ()); | |
715 | strcat (form, local_octal_format_suffix ()); | |
716 | return form; | |
c906108c SS |
717 | } |
718 | ||
719 | /* Returns the appropriate printf format for decimal numbers. */ | |
720 | char * | |
c5aa993b JM |
721 | local_decimal_format_custom (pre) |
722 | char *pre; | |
c906108c | 723 | { |
c5aa993b JM |
724 | static char form[50]; |
725 | ||
726 | strcpy (form, local_decimal_format_prefix ()); | |
727 | strcat (form, "%"); | |
728 | strcat (form, pre); | |
729 | strcat (form, local_decimal_format_specifier ()); | |
730 | strcat (form, local_decimal_format_suffix ()); | |
731 | return form; | |
c906108c SS |
732 | } |
733 | \f | |
734 | #if 0 | |
735 | /* This page contains functions that are used in type/range checking. | |
736 | They all return zero if the type/range check fails. | |
737 | ||
738 | It is hoped that these will make extending GDB to parse different | |
739 | languages a little easier. These are primarily used in eval.c when | |
740 | evaluating expressions and making sure that their types are correct. | |
741 | Instead of having a mess of conjucted/disjuncted expressions in an "if", | |
742 | the ideas of type can be wrapped up in the following functions. | |
743 | ||
744 | Note that some of them are not currently dependent upon which language | |
745 | is currently being parsed. For example, floats are the same in | |
746 | C and Modula-2 (ie. the only floating point type has TYPE_CODE of | |
747 | TYPE_CODE_FLT), while booleans are different. */ | |
748 | ||
749 | /* Returns non-zero if its argument is a simple type. This is the same for | |
750 | both Modula-2 and for C. In the C case, TYPE_CODE_CHAR will never occur, | |
751 | and thus will never cause the failure of the test. */ | |
752 | int | |
c5aa993b JM |
753 | simple_type (type) |
754 | struct type *type; | |
c906108c SS |
755 | { |
756 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
757 | switch (TYPE_CODE (type)) |
758 | { | |
759 | case TYPE_CODE_INT: | |
760 | case TYPE_CODE_CHAR: | |
761 | case TYPE_CODE_ENUM: | |
762 | case TYPE_CODE_FLT: | |
763 | case TYPE_CODE_RANGE: | |
764 | case TYPE_CODE_BOOL: | |
765 | return 1; | |
c906108c | 766 | |
c5aa993b JM |
767 | default: |
768 | return 0; | |
769 | } | |
c906108c SS |
770 | } |
771 | ||
772 | /* Returns non-zero if its argument is of an ordered type. | |
773 | An ordered type is one in which the elements can be tested for the | |
774 | properties of "greater than", "less than", etc, or for which the | |
775 | operations "increment" or "decrement" make sense. */ | |
776 | int | |
777 | ordered_type (type) | |
c5aa993b | 778 | struct type *type; |
c906108c SS |
779 | { |
780 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
781 | switch (TYPE_CODE (type)) |
782 | { | |
783 | case TYPE_CODE_INT: | |
784 | case TYPE_CODE_CHAR: | |
785 | case TYPE_CODE_ENUM: | |
786 | case TYPE_CODE_FLT: | |
787 | case TYPE_CODE_RANGE: | |
788 | return 1; | |
c906108c | 789 | |
c5aa993b JM |
790 | default: |
791 | return 0; | |
792 | } | |
c906108c SS |
793 | } |
794 | ||
795 | /* Returns non-zero if the two types are the same */ | |
796 | int | |
797 | same_type (arg1, arg2) | |
c5aa993b | 798 | struct type *arg1, *arg2; |
c906108c SS |
799 | { |
800 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
801 | if (structured_type (arg1) ? !structured_type (arg2) : structured_type (arg2)) |
802 | /* One is structured and one isn't */ | |
803 | return 0; | |
804 | else if (structured_type (arg1) && structured_type (arg2)) | |
805 | return arg1 == arg2; | |
806 | else if (numeric_type (arg1) && numeric_type (arg2)) | |
807 | return (TYPE_CODE (arg2) == TYPE_CODE (arg1)) && | |
808 | (TYPE_UNSIGNED (arg1) == TYPE_UNSIGNED (arg2)) | |
809 | ? 1 : 0; | |
810 | else | |
811 | return arg1 == arg2; | |
c906108c SS |
812 | } |
813 | ||
814 | /* Returns non-zero if the type is integral */ | |
815 | int | |
816 | integral_type (type) | |
c5aa993b | 817 | struct type *type; |
c906108c SS |
818 | { |
819 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
820 | switch (current_language->la_language) |
821 | { | |
822 | case language_c: | |
823 | case language_cplus: | |
824 | return (TYPE_CODE (type) != TYPE_CODE_INT) && | |
825 | (TYPE_CODE (type) != TYPE_CODE_ENUM) ? 0 : 1; | |
826 | case language_m2: | |
827 | return TYPE_CODE (type) != TYPE_CODE_INT ? 0 : 1; | |
828 | case language_chill: | |
829 | error ("Missing Chill support in function integral_type."); /*FIXME */ | |
830 | default: | |
c906108c | 831 | error ("Language not supported."); |
c5aa993b | 832 | } |
c906108c SS |
833 | } |
834 | ||
835 | /* Returns non-zero if the value is numeric */ | |
836 | int | |
837 | numeric_type (type) | |
c5aa993b | 838 | struct type *type; |
c906108c SS |
839 | { |
840 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
841 | switch (TYPE_CODE (type)) |
842 | { | |
843 | case TYPE_CODE_INT: | |
844 | case TYPE_CODE_FLT: | |
845 | return 1; | |
c906108c | 846 | |
c5aa993b JM |
847 | default: |
848 | return 0; | |
849 | } | |
c906108c SS |
850 | } |
851 | ||
852 | /* Returns non-zero if the value is a character type */ | |
853 | int | |
854 | character_type (type) | |
c5aa993b | 855 | struct type *type; |
c906108c SS |
856 | { |
857 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
858 | switch (current_language->la_language) |
859 | { | |
860 | case language_chill: | |
861 | case language_m2: | |
862 | return TYPE_CODE (type) != TYPE_CODE_CHAR ? 0 : 1; | |
863 | ||
864 | case language_c: | |
865 | case language_cplus: | |
866 | return (TYPE_CODE (type) == TYPE_CODE_INT) && | |
867 | TYPE_LENGTH (type) == sizeof (char) | |
868 | ? 1 : 0; | |
869 | default: | |
c906108c | 870 | return (0); |
c5aa993b | 871 | } |
c906108c SS |
872 | } |
873 | ||
874 | /* Returns non-zero if the value is a string type */ | |
875 | int | |
876 | string_type (type) | |
c5aa993b | 877 | struct type *type; |
c906108c SS |
878 | { |
879 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
880 | switch (current_language->la_language) |
881 | { | |
882 | case language_chill: | |
883 | case language_m2: | |
884 | return TYPE_CODE (type) != TYPE_CODE_STRING ? 0 : 1; | |
885 | ||
886 | case language_c: | |
887 | case language_cplus: | |
c906108c SS |
888 | /* C does not have distinct string type. */ |
889 | return (0); | |
c5aa993b | 890 | default: |
c906108c | 891 | return (0); |
c5aa993b | 892 | } |
c906108c SS |
893 | } |
894 | ||
895 | /* Returns non-zero if the value is a boolean type */ | |
896 | int | |
897 | boolean_type (type) | |
c5aa993b | 898 | struct type *type; |
c906108c SS |
899 | { |
900 | CHECK_TYPEDEF (type); | |
901 | if (TYPE_CODE (type) == TYPE_CODE_BOOL) | |
902 | return 1; | |
c5aa993b | 903 | switch (current_language->la_language) |
c906108c SS |
904 | { |
905 | case language_c: | |
906 | case language_cplus: | |
907 | /* Might be more cleanly handled by having a TYPE_CODE_INT_NOT_BOOL | |
c5aa993b | 908 | for CHILL and such languages, or a TYPE_CODE_INT_OR_BOOL for C. */ |
c906108c SS |
909 | if (TYPE_CODE (type) == TYPE_CODE_INT) |
910 | return 1; | |
c5aa993b | 911 | default: |
c906108c | 912 | break; |
c5aa993b | 913 | } |
c906108c SS |
914 | return 0; |
915 | } | |
916 | ||
917 | /* Returns non-zero if the value is a floating-point type */ | |
918 | int | |
919 | float_type (type) | |
c5aa993b | 920 | struct type *type; |
c906108c SS |
921 | { |
922 | CHECK_TYPEDEF (type); | |
c5aa993b | 923 | return TYPE_CODE (type) == TYPE_CODE_FLT; |
c906108c SS |
924 | } |
925 | ||
926 | /* Returns non-zero if the value is a pointer type */ | |
927 | int | |
c5aa993b JM |
928 | pointer_type (type) |
929 | struct type *type; | |
c906108c | 930 | { |
c5aa993b JM |
931 | return TYPE_CODE (type) == TYPE_CODE_PTR || |
932 | TYPE_CODE (type) == TYPE_CODE_REF; | |
c906108c SS |
933 | } |
934 | ||
935 | /* Returns non-zero if the value is a structured type */ | |
936 | int | |
c5aa993b JM |
937 | structured_type (type) |
938 | struct type *type; | |
c906108c SS |
939 | { |
940 | CHECK_TYPEDEF (type); | |
c5aa993b JM |
941 | switch (current_language->la_language) |
942 | { | |
943 | case language_c: | |
944 | case language_cplus: | |
945 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || | |
946 | (TYPE_CODE (type) == TYPE_CODE_UNION) || | |
947 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
948 | case language_m2: | |
949 | return (TYPE_CODE (type) == TYPE_CODE_STRUCT) || | |
950 | (TYPE_CODE (type) == TYPE_CODE_SET) || | |
951 | (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
952 | case language_chill: | |
953 | error ("Missing Chill support in function structured_type."); /*FIXME */ | |
954 | default: | |
c906108c | 955 | return (0); |
c5aa993b | 956 | } |
c906108c SS |
957 | } |
958 | #endif | |
959 | \f | |
960 | struct type * | |
961 | lang_bool_type () | |
962 | { | |
963 | struct symbol *sym; | |
964 | struct type *type; | |
c5aa993b | 965 | switch (current_language->la_language) |
c906108c SS |
966 | { |
967 | case language_chill: | |
968 | return builtin_type_chill_bool; | |
969 | case language_fortran: | |
970 | sym = lookup_symbol ("logical", NULL, VAR_NAMESPACE, NULL, NULL); | |
971 | if (sym) | |
972 | { | |
973 | type = SYMBOL_TYPE (sym); | |
974 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
975 | return type; | |
976 | } | |
977 | return builtin_type_f_logical_s2; | |
978 | case language_cplus: | |
979 | sym = lookup_symbol ("bool", NULL, VAR_NAMESPACE, NULL, NULL); | |
980 | if (sym) | |
981 | { | |
982 | type = SYMBOL_TYPE (sym); | |
983 | if (type && TYPE_CODE (type) == TYPE_CODE_BOOL) | |
984 | return type; | |
985 | } | |
986 | return builtin_type_bool; | |
987 | default: | |
988 | return builtin_type_int; | |
989 | } | |
990 | } | |
991 | \f | |
992 | /* This page contains functions that return info about | |
993 | (struct value) values used in GDB. */ | |
994 | ||
995 | /* Returns non-zero if the value VAL represents a true value. */ | |
996 | int | |
997 | value_true (val) | |
998 | value_ptr val; | |
999 | { | |
1000 | /* It is possible that we should have some sort of error if a non-boolean | |
1001 | value is used in this context. Possibly dependent on some kind of | |
1002 | "boolean-checking" option like range checking. But it should probably | |
1003 | not depend on the language except insofar as is necessary to identify | |
1004 | a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean | |
1005 | should be an error, probably). */ | |
1006 | return !value_logical_not (val); | |
1007 | } | |
1008 | \f | |
1009 | /* Returns non-zero if the operator OP is defined on | |
1010 | the values ARG1 and ARG2. */ | |
1011 | ||
c5aa993b | 1012 | #if 0 /* Currently unused */ |
c906108c SS |
1013 | |
1014 | void | |
c5aa993b JM |
1015 | binop_type_check (arg1, arg2, op) |
1016 | value_ptr arg1, arg2; | |
1017 | int op; | |
c906108c | 1018 | { |
c5aa993b | 1019 | struct type *t1, *t2; |
c906108c | 1020 | |
c5aa993b JM |
1021 | /* If we're not checking types, always return success. */ |
1022 | if (!STRICT_TYPE) | |
1023 | return; | |
1024 | ||
1025 | t1 = VALUE_TYPE (arg1); | |
1026 | if (arg2 != NULL) | |
1027 | t2 = VALUE_TYPE (arg2); | |
1028 | else | |
1029 | t2 = NULL; | |
c906108c | 1030 | |
c5aa993b JM |
1031 | switch (op) |
1032 | { | |
1033 | case BINOP_ADD: | |
1034 | case BINOP_SUB: | |
1035 | if ((numeric_type (t1) && pointer_type (t2)) || | |
1036 | (pointer_type (t1) && numeric_type (t2))) | |
1037 | { | |
1038 | warning ("combining pointer and integer.\n"); | |
1039 | break; | |
1040 | } | |
1041 | case BINOP_MUL: | |
1042 | case BINOP_LSH: | |
1043 | case BINOP_RSH: | |
1044 | if (!numeric_type (t1) || !numeric_type (t2)) | |
1045 | type_op_error ("Arguments to %s must be numbers.", op); | |
1046 | else if (!same_type (t1, t2)) | |
1047 | type_op_error ("Arguments to %s must be of the same type.", op); | |
c906108c SS |
1048 | break; |
1049 | ||
c5aa993b JM |
1050 | case BINOP_LOGICAL_AND: |
1051 | case BINOP_LOGICAL_OR: | |
1052 | if (!boolean_type (t1) || !boolean_type (t2)) | |
1053 | type_op_error ("Arguments to %s must be of boolean type.", op); | |
c906108c SS |
1054 | break; |
1055 | ||
c5aa993b JM |
1056 | case BINOP_EQUAL: |
1057 | if ((pointer_type (t1) && !(pointer_type (t2) || integral_type (t2))) || | |
1058 | (pointer_type (t2) && !(pointer_type (t1) || integral_type (t1)))) | |
1059 | type_op_error ("A pointer can only be compared to an integer or pointer.", op); | |
1060 | else if ((pointer_type (t1) && integral_type (t2)) || | |
1061 | (integral_type (t1) && pointer_type (t2))) | |
1062 | { | |
1063 | warning ("combining integer and pointer.\n"); | |
1064 | break; | |
1065 | } | |
1066 | else if (!simple_type (t1) || !simple_type (t2)) | |
1067 | type_op_error ("Arguments to %s must be of simple type.", op); | |
1068 | else if (!same_type (t1, t2)) | |
1069 | type_op_error ("Arguments to %s must be of the same type.", op); | |
c906108c SS |
1070 | break; |
1071 | ||
c5aa993b JM |
1072 | case BINOP_REM: |
1073 | case BINOP_MOD: | |
1074 | if (!integral_type (t1) || !integral_type (t2)) | |
1075 | type_op_error ("Arguments to %s must be of integral type.", op); | |
c906108c SS |
1076 | break; |
1077 | ||
c5aa993b JM |
1078 | case BINOP_LESS: |
1079 | case BINOP_GTR: | |
1080 | case BINOP_LEQ: | |
1081 | case BINOP_GEQ: | |
1082 | if (!ordered_type (t1) || !ordered_type (t2)) | |
1083 | type_op_error ("Arguments to %s must be of ordered type.", op); | |
1084 | else if (!same_type (t1, t2)) | |
1085 | type_op_error ("Arguments to %s must be of the same type.", op); | |
c906108c SS |
1086 | break; |
1087 | ||
c5aa993b JM |
1088 | case BINOP_ASSIGN: |
1089 | if (pointer_type (t1) && !integral_type (t2)) | |
1090 | type_op_error ("A pointer can only be assigned an integer.", op); | |
1091 | else if (pointer_type (t1) && integral_type (t2)) | |
1092 | { | |
1093 | warning ("combining integer and pointer."); | |
1094 | break; | |
1095 | } | |
1096 | else if (!simple_type (t1) || !simple_type (t2)) | |
1097 | type_op_error ("Arguments to %s must be of simple type.", op); | |
1098 | else if (!same_type (t1, t2)) | |
1099 | type_op_error ("Arguments to %s must be of the same type.", op); | |
c906108c SS |
1100 | break; |
1101 | ||
1102 | case BINOP_CONCAT: | |
1103 | /* FIXME: Needs to handle bitstrings as well. */ | |
c5aa993b JM |
1104 | if (!(string_type (t1) || character_type (t1) || integral_type (t1)) |
1105 | || !(string_type (t2) || character_type (t2) || integral_type (t2))) | |
1106 | type_op_error ("Arguments to %s must be strings or characters.", op); | |
c906108c SS |
1107 | break; |
1108 | ||
c5aa993b | 1109 | /* Unary checks -- arg2 is null */ |
c906108c | 1110 | |
c5aa993b JM |
1111 | case UNOP_LOGICAL_NOT: |
1112 | if (!boolean_type (t1)) | |
1113 | type_op_error ("Argument to %s must be of boolean type.", op); | |
c906108c SS |
1114 | break; |
1115 | ||
c5aa993b JM |
1116 | case UNOP_PLUS: |
1117 | case UNOP_NEG: | |
1118 | if (!numeric_type (t1)) | |
1119 | type_op_error ("Argument to %s must be of numeric type.", op); | |
c906108c SS |
1120 | break; |
1121 | ||
c5aa993b JM |
1122 | case UNOP_IND: |
1123 | if (integral_type (t1)) | |
1124 | { | |
1125 | warning ("combining pointer and integer.\n"); | |
1126 | break; | |
1127 | } | |
1128 | else if (!pointer_type (t1)) | |
1129 | type_op_error ("Argument to %s must be a pointer.", op); | |
c906108c SS |
1130 | break; |
1131 | ||
c5aa993b JM |
1132 | case UNOP_PREINCREMENT: |
1133 | case UNOP_POSTINCREMENT: | |
1134 | case UNOP_PREDECREMENT: | |
1135 | case UNOP_POSTDECREMENT: | |
1136 | if (!ordered_type (t1)) | |
1137 | type_op_error ("Argument to %s must be of an ordered type.", op); | |
c906108c SS |
1138 | break; |
1139 | ||
c5aa993b | 1140 | default: |
c906108c | 1141 | /* Ok. The following operators have different meanings in |
c5aa993b JM |
1142 | different languages. */ |
1143 | switch (current_language->la_language) | |
1144 | { | |
c906108c | 1145 | #ifdef _LANG_c |
c5aa993b JM |
1146 | case language_c: |
1147 | case language_cplus: | |
1148 | switch (op) | |
1149 | { | |
1150 | case BINOP_DIV: | |
1151 | if (!numeric_type (t1) || !numeric_type (t2)) | |
1152 | type_op_error ("Arguments to %s must be numbers.", op); | |
1153 | break; | |
1154 | } | |
1155 | break; | |
c906108c SS |
1156 | #endif |
1157 | ||
1158 | #ifdef _LANG_m2 | |
c5aa993b JM |
1159 | case language_m2: |
1160 | switch (op) | |
1161 | { | |
1162 | case BINOP_DIV: | |
1163 | if (!float_type (t1) || !float_type (t2)) | |
1164 | type_op_error ("Arguments to %s must be floating point numbers.", op); | |
1165 | break; | |
1166 | case BINOP_INTDIV: | |
1167 | if (!integral_type (t1) || !integral_type (t2)) | |
1168 | type_op_error ("Arguments to %s must be of integral type.", op); | |
1169 | break; | |
1170 | } | |
c906108c SS |
1171 | #endif |
1172 | ||
1173 | #ifdef _LANG_chill | |
c5aa993b JM |
1174 | case language_chill: |
1175 | error ("Missing Chill support in function binop_type_check."); /*FIXME */ | |
c906108c SS |
1176 | #endif |
1177 | ||
c5aa993b JM |
1178 | } |
1179 | } | |
c906108c SS |
1180 | } |
1181 | ||
c5aa993b | 1182 | #endif /* 0 */ |
c906108c | 1183 | \f |
c5aa993b | 1184 | |
c906108c SS |
1185 | /* This page contains functions for the printing out of |
1186 | error messages that occur during type- and range- | |
1187 | checking. */ | |
1188 | ||
1189 | /* Prints the format string FMT with the operator as a string | |
1190 | corresponding to the opcode OP. If FATAL is non-zero, then | |
1191 | this is an error and error () is called. Otherwise, it is | |
1192 | a warning and printf() is called. */ | |
1193 | void | |
c5aa993b JM |
1194 | op_error (fmt, op, fatal) |
1195 | char *fmt; | |
1196 | enum exp_opcode op; | |
1197 | int fatal; | |
c906108c | 1198 | { |
c5aa993b JM |
1199 | if (fatal) |
1200 | error (fmt, op_string (op)); | |
1201 | else | |
1202 | { | |
1203 | warning (fmt, op_string (op)); | |
1204 | } | |
c906108c SS |
1205 | } |
1206 | ||
1207 | /* These are called when a language fails a type- or range-check. | |
1208 | The first argument should be a printf()-style format string, and | |
1209 | the rest of the arguments should be its arguments. If | |
1210 | [type|range]_check is [type|range]_check_on, then return_to_top_level() | |
1211 | is called in the style of error (). Otherwise, the message is prefixed | |
1212 | by the value of warning_pre_print and we do not return to the top level. */ | |
1213 | ||
1214 | void | |
c5aa993b | 1215 | type_error (char *string,...) |
c906108c | 1216 | { |
c5aa993b | 1217 | va_list args; |
c5aa993b | 1218 | va_start (args, string); |
c906108c | 1219 | |
c5aa993b JM |
1220 | if (type_check == type_check_warn) |
1221 | fprintf_filtered (gdb_stderr, warning_pre_print); | |
1222 | else | |
1223 | error_begin (); | |
c906108c | 1224 | |
c5aa993b JM |
1225 | vfprintf_filtered (gdb_stderr, string, args); |
1226 | fprintf_filtered (gdb_stderr, "\n"); | |
1227 | va_end (args); | |
1228 | if (type_check == type_check_on) | |
1229 | return_to_top_level (RETURN_ERROR); | |
c906108c SS |
1230 | } |
1231 | ||
1232 | void | |
c5aa993b | 1233 | range_error (char *string,...) |
c906108c | 1234 | { |
c5aa993b | 1235 | va_list args; |
c5aa993b | 1236 | va_start (args, string); |
c906108c | 1237 | |
c5aa993b JM |
1238 | if (range_check == range_check_warn) |
1239 | fprintf_filtered (gdb_stderr, warning_pre_print); | |
1240 | else | |
1241 | error_begin (); | |
c906108c | 1242 | |
c5aa993b JM |
1243 | vfprintf_filtered (gdb_stderr, string, args); |
1244 | fprintf_filtered (gdb_stderr, "\n"); | |
1245 | va_end (args); | |
1246 | if (range_check == range_check_on) | |
1247 | return_to_top_level (RETURN_ERROR); | |
c906108c | 1248 | } |
c906108c | 1249 | \f |
c5aa993b | 1250 | |
c906108c SS |
1251 | /* This page contains miscellaneous functions */ |
1252 | ||
1253 | /* Return the language enum for a given language string. */ | |
1254 | ||
1255 | enum language | |
1256 | language_enum (str) | |
1257 | char *str; | |
1258 | { | |
1259 | int i; | |
1260 | ||
c5aa993b | 1261 | for (i = 0; i < languages_size; i++) |
c906108c SS |
1262 | if (STREQ (languages[i]->la_name, str)) |
1263 | return languages[i]->la_language; | |
1264 | ||
1265 | return language_unknown; | |
1266 | } | |
1267 | ||
1268 | /* Return the language struct for a given language enum. */ | |
1269 | ||
1270 | const struct language_defn * | |
c5aa993b JM |
1271 | language_def (lang) |
1272 | enum language lang; | |
c906108c SS |
1273 | { |
1274 | int i; | |
1275 | ||
c5aa993b JM |
1276 | for (i = 0; i < languages_size; i++) |
1277 | { | |
1278 | if (languages[i]->la_language == lang) | |
1279 | { | |
1280 | return languages[i]; | |
1281 | } | |
c906108c | 1282 | } |
c906108c SS |
1283 | return NULL; |
1284 | } | |
1285 | ||
1286 | /* Return the language as a string */ | |
1287 | char * | |
c5aa993b JM |
1288 | language_str (lang) |
1289 | enum language lang; | |
c906108c SS |
1290 | { |
1291 | int i; | |
1292 | ||
c5aa993b JM |
1293 | for (i = 0; i < languages_size; i++) |
1294 | { | |
1295 | if (languages[i]->la_language == lang) | |
1296 | { | |
1297 | return languages[i]->la_name; | |
1298 | } | |
c906108c | 1299 | } |
c906108c SS |
1300 | return "Unknown"; |
1301 | } | |
1302 | ||
1303 | static void | |
1304 | set_check (ignore, from_tty) | |
c5aa993b JM |
1305 | char *ignore; |
1306 | int from_tty; | |
c906108c | 1307 | { |
c5aa993b JM |
1308 | printf_unfiltered ( |
1309 | "\"set check\" must be followed by the name of a check subcommand.\n"); | |
1310 | help_list (setchecklist, "set check ", -1, gdb_stdout); | |
c906108c SS |
1311 | } |
1312 | ||
1313 | static void | |
1314 | show_check (ignore, from_tty) | |
c5aa993b JM |
1315 | char *ignore; |
1316 | int from_tty; | |
c906108c | 1317 | { |
c5aa993b | 1318 | cmd_show_list (showchecklist, from_tty, ""); |
c906108c SS |
1319 | } |
1320 | \f | |
1321 | /* Add a language to the set of known languages. */ | |
1322 | ||
1323 | void | |
1324 | add_language (lang) | |
1325 | const struct language_defn *lang; | |
1326 | { | |
1327 | if (lang->la_magic != LANG_MAGIC) | |
1328 | { | |
c5aa993b JM |
1329 | fprintf_unfiltered (gdb_stderr, "Magic number of %s language struct wrong\n", |
1330 | lang->la_name); | |
1331 | abort (); | |
c906108c SS |
1332 | } |
1333 | ||
1334 | if (!languages) | |
1335 | { | |
1336 | languages_allocsize = DEFAULT_ALLOCSIZE; | |
1337 | languages = (const struct language_defn **) xmalloc | |
1338 | (languages_allocsize * sizeof (*languages)); | |
1339 | } | |
1340 | if (languages_size >= languages_allocsize) | |
1341 | { | |
1342 | languages_allocsize *= 2; | |
1343 | languages = (const struct language_defn **) xrealloc ((char *) languages, | |
c5aa993b | 1344 | languages_allocsize * sizeof (*languages)); |
c906108c SS |
1345 | } |
1346 | languages[languages_size++] = lang; | |
1347 | } | |
1348 | ||
1349 | /* Define the language that is no language. */ | |
1350 | ||
1351 | static int | |
1352 | unk_lang_parser () | |
1353 | { | |
1354 | return 1; | |
1355 | } | |
1356 | ||
1357 | static void | |
1358 | unk_lang_error (msg) | |
1359 | char *msg; | |
1360 | { | |
1361 | error ("Attempted to parse an expression with unknown language"); | |
1362 | } | |
1363 | ||
1364 | static void | |
1365 | unk_lang_emit_char (c, stream, quoter) | |
1366 | register int c; | |
1367 | GDB_FILE *stream; | |
1368 | int quoter; | |
1369 | { | |
1370 | error ("internal error - unimplemented function unk_lang_emit_char called."); | |
1371 | } | |
1372 | ||
1373 | static void | |
1374 | unk_lang_printchar (c, stream) | |
1375 | register int c; | |
1376 | GDB_FILE *stream; | |
1377 | { | |
1378 | error ("internal error - unimplemented function unk_lang_printchar called."); | |
1379 | } | |
1380 | ||
1381 | static void | |
1382 | unk_lang_printstr (stream, string, length, width, force_ellipses) | |
1383 | GDB_FILE *stream; | |
1384 | char *string; | |
1385 | unsigned int length; | |
1386 | int width; | |
1387 | int force_ellipses; | |
1388 | { | |
1389 | error ("internal error - unimplemented function unk_lang_printstr called."); | |
1390 | } | |
1391 | ||
1392 | static struct type * | |
1393 | unk_lang_create_fundamental_type (objfile, typeid) | |
1394 | struct objfile *objfile; | |
1395 | int typeid; | |
1396 | { | |
1397 | error ("internal error - unimplemented function unk_lang_create_fundamental_type called."); | |
1398 | } | |
1399 | ||
1400 | static void | |
1401 | unk_lang_print_type (type, varstring, stream, show, level) | |
1402 | struct type *type; | |
1403 | char *varstring; | |
1404 | GDB_FILE *stream; | |
1405 | int show; | |
1406 | int level; | |
1407 | { | |
1408 | error ("internal error - unimplemented function unk_lang_print_type called."); | |
1409 | } | |
1410 | ||
1411 | static int | |
c5aa993b | 1412 | unk_lang_val_print (type, valaddr, embedded_offset, address, stream, format, deref_ref, |
c906108c SS |
1413 | recurse, pretty) |
1414 | struct type *type; | |
1415 | char *valaddr; | |
1416 | int embedded_offset; | |
1417 | CORE_ADDR address; | |
1418 | GDB_FILE *stream; | |
1419 | int format; | |
1420 | int deref_ref; | |
1421 | int recurse; | |
1422 | enum val_prettyprint pretty; | |
1423 | { | |
1424 | error ("internal error - unimplemented function unk_lang_val_print called."); | |
1425 | } | |
1426 | ||
1427 | static int | |
1428 | unk_lang_value_print (val, stream, format, pretty) | |
1429 | value_ptr val; | |
1430 | GDB_FILE *stream; | |
1431 | int format; | |
1432 | enum val_prettyprint pretty; | |
1433 | { | |
1434 | error ("internal error - unimplemented function unk_lang_value_print called."); | |
1435 | } | |
1436 | ||
c5aa993b JM |
1437 | static struct type **CONST_PTR (unknown_builtin_types[]) = |
1438 | { | |
1439 | 0 | |
1440 | }; | |
1441 | static const struct op_print unk_op_print_tab[] = | |
1442 | { | |
1443 | {NULL, OP_NULL, PREC_NULL, 0} | |
c906108c SS |
1444 | }; |
1445 | ||
c5aa993b JM |
1446 | const struct language_defn unknown_language_defn = |
1447 | { | |
c906108c SS |
1448 | "unknown", |
1449 | language_unknown, | |
1450 | &unknown_builtin_types[0], | |
1451 | range_check_off, | |
1452 | type_check_off, | |
1453 | unk_lang_parser, | |
1454 | unk_lang_error, | |
1455 | evaluate_subexp_standard, | |
1456 | unk_lang_printchar, /* Print character constant */ | |
1457 | unk_lang_printstr, | |
1458 | unk_lang_emit_char, | |
1459 | unk_lang_create_fundamental_type, | |
1460 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1461 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1462 | unk_lang_value_print, /* Print a top-level value */ | |
c5aa993b JM |
1463 | {"", "", "", ""}, /* Binary format info */ |
1464 | {"0%lo", "0", "o", ""}, /* Octal format info */ | |
1465 | {"%ld", "", "d", ""}, /* Decimal format info */ | |
1466 | {"0x%lx", "0x", "x", ""}, /* Hex format info */ | |
c906108c SS |
1467 | unk_op_print_tab, /* expression operators for printing */ |
1468 | 1, /* c-style arrays */ | |
1469 | 0, /* String lower bound */ | |
c5aa993b | 1470 | &builtin_type_char, /* Type of string elements */ |
c906108c SS |
1471 | LANG_MAGIC |
1472 | }; | |
1473 | ||
1474 | /* These two structs define fake entries for the "local" and "auto" options. */ | |
c5aa993b JM |
1475 | const struct language_defn auto_language_defn = |
1476 | { | |
c906108c SS |
1477 | "auto", |
1478 | language_auto, | |
1479 | &unknown_builtin_types[0], | |
1480 | range_check_off, | |
1481 | type_check_off, | |
1482 | unk_lang_parser, | |
1483 | unk_lang_error, | |
1484 | evaluate_subexp_standard, | |
1485 | unk_lang_printchar, /* Print character constant */ | |
1486 | unk_lang_printstr, | |
1487 | unk_lang_emit_char, | |
1488 | unk_lang_create_fundamental_type, | |
1489 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1490 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1491 | unk_lang_value_print, /* Print a top-level value */ | |
c5aa993b JM |
1492 | {"", "", "", ""}, /* Binary format info */ |
1493 | {"0%lo", "0", "o", ""}, /* Octal format info */ | |
1494 | {"%ld", "", "d", ""}, /* Decimal format info */ | |
1495 | {"0x%lx", "0x", "x", ""}, /* Hex format info */ | |
c906108c SS |
1496 | unk_op_print_tab, /* expression operators for printing */ |
1497 | 1, /* c-style arrays */ | |
1498 | 0, /* String lower bound */ | |
c5aa993b | 1499 | &builtin_type_char, /* Type of string elements */ |
c906108c SS |
1500 | LANG_MAGIC |
1501 | }; | |
1502 | ||
c5aa993b JM |
1503 | const struct language_defn local_language_defn = |
1504 | { | |
c906108c SS |
1505 | "local", |
1506 | language_auto, | |
1507 | &unknown_builtin_types[0], | |
1508 | range_check_off, | |
1509 | type_check_off, | |
1510 | unk_lang_parser, | |
1511 | unk_lang_error, | |
1512 | evaluate_subexp_standard, | |
1513 | unk_lang_printchar, /* Print character constant */ | |
1514 | unk_lang_printstr, | |
1515 | unk_lang_emit_char, | |
1516 | unk_lang_create_fundamental_type, | |
1517 | unk_lang_print_type, /* Print a type using appropriate syntax */ | |
1518 | unk_lang_val_print, /* Print a value using appropriate syntax */ | |
1519 | unk_lang_value_print, /* Print a top-level value */ | |
c5aa993b JM |
1520 | {"", "", "", ""}, /* Binary format info */ |
1521 | {"0%lo", "0", "o", ""}, /* Octal format info */ | |
1522 | {"%ld", "", "d", ""}, /* Decimal format info */ | |
1523 | {"0x%lx", "0x", "x", ""}, /* Hex format info */ | |
c906108c SS |
1524 | unk_op_print_tab, /* expression operators for printing */ |
1525 | 1, /* c-style arrays */ | |
1526 | 0, /* String lower bound */ | |
c5aa993b | 1527 | &builtin_type_char, /* Type of string elements */ |
c906108c SS |
1528 | LANG_MAGIC |
1529 | }; | |
1530 | \f | |
1531 | /* Initialize the language routines */ | |
1532 | ||
1533 | void | |
c5aa993b | 1534 | _initialize_language () |
c906108c | 1535 | { |
c5aa993b JM |
1536 | struct cmd_list_element *set, *show; |
1537 | ||
1538 | /* GDB commands for language specific stuff */ | |
1539 | ||
1540 | set = add_set_cmd ("language", class_support, var_string_noescape, | |
1541 | (char *) &language, | |
1542 | "Set the current source language.", | |
1543 | &setlist); | |
1544 | show = add_show_from_set (set, &showlist); | |
1545 | set->function.cfunc = set_language_command; | |
1546 | show->function.cfunc = show_language_command; | |
1547 | ||
1548 | add_prefix_cmd ("check", no_class, set_check, | |
1549 | "Set the status of the type/range checker", | |
1550 | &setchecklist, "set check ", 0, &setlist); | |
1551 | add_alias_cmd ("c", "check", no_class, 1, &setlist); | |
1552 | add_alias_cmd ("ch", "check", no_class, 1, &setlist); | |
1553 | ||
1554 | add_prefix_cmd ("check", no_class, show_check, | |
1555 | "Show the status of the type/range checker", | |
1556 | &showchecklist, "show check ", 0, &showlist); | |
1557 | add_alias_cmd ("c", "check", no_class, 1, &showlist); | |
1558 | add_alias_cmd ("ch", "check", no_class, 1, &showlist); | |
1559 | ||
1560 | set = add_set_cmd ("type", class_support, var_string_noescape, | |
1561 | (char *) &type, | |
1562 | "Set type checking. (on/warn/off/auto)", | |
1563 | &setchecklist); | |
1564 | show = add_show_from_set (set, &showchecklist); | |
1565 | set->function.cfunc = set_type_command; | |
1566 | show->function.cfunc = show_type_command; | |
1567 | ||
1568 | set = add_set_cmd ("range", class_support, var_string_noescape, | |
1569 | (char *) &range, | |
1570 | "Set range checking. (on/warn/off/auto)", | |
1571 | &setchecklist); | |
1572 | show = add_show_from_set (set, &showchecklist); | |
1573 | set->function.cfunc = set_range_command; | |
1574 | show->function.cfunc = show_range_command; | |
1575 | ||
1576 | add_language (&unknown_language_defn); | |
1577 | add_language (&local_language_defn); | |
1578 | add_language (&auto_language_defn); | |
1579 | ||
1580 | language = savestring ("auto", strlen ("auto")); | |
1581 | range = savestring ("auto", strlen ("auto")); | |
1582 | type = savestring ("auto", strlen ("auto")); | |
1583 | ||
1584 | /* Have the above take effect */ | |
1585 | ||
1586 | set_language_command (language, 0); | |
1587 | set_type_command (NULL, 0); | |
1588 | set_range_command (NULL, 0); | |
c906108c | 1589 | } |