Commit | Line | Data |
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c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
1bac305b | 2 | |
8acc9f48 | 3 | Copyright (C) 1986-2013 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c | 19 | |
4e8f7a8b | 20 | #include "defs.h" |
5a56e9c5 | 21 | #include "dyn-string.h" |
4e8f7a8b DJ |
22 | #include "gdb_assert.h" |
23 | #include <ctype.h> | |
24 | #include "gdb_string.h" | |
0b6cb71e | 25 | #include "gdb_wait.h" |
4e8f7a8b | 26 | #include "event-top.h" |
60250e8b | 27 | #include "exceptions.h" |
95e54da7 | 28 | #include "gdbthread.h" |
202cbf1c | 29 | #include "fnmatch.h" |
cbb099e8 | 30 | #include "gdb_bfd.h" |
7991dee7 JK |
31 | #ifdef HAVE_SYS_RESOURCE_H |
32 | #include <sys/resource.h> | |
33 | #endif /* HAVE_SYS_RESOURCE_H */ | |
4e8f7a8b | 34 | |
6a83354a AC |
35 | #ifdef TUI |
36 | #include "tui/tui.h" /* For tui_get_command_dimension. */ | |
37 | #endif | |
38 | ||
9d271fd8 AC |
39 | #ifdef __GO32__ |
40 | #include <pc.h> | |
41 | #endif | |
42 | ||
581e13c1 | 43 | /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */ |
c906108c SS |
44 | #ifdef reg |
45 | #undef reg | |
46 | #endif | |
47 | ||
042be3a9 | 48 | #include <signal.h> |
0a1c4d10 | 49 | #include "timeval-utils.h" |
c906108c SS |
50 | #include "gdbcmd.h" |
51 | #include "serial.h" | |
52 | #include "bfd.h" | |
53 | #include "target.h" | |
50f182aa | 54 | #include "gdb-demangle.h" |
c906108c SS |
55 | #include "expression.h" |
56 | #include "language.h" | |
234b45d4 | 57 | #include "charset.h" |
c906108c | 58 | #include "annotate.h" |
303c8ebd | 59 | #include "filenames.h" |
7b90c3f9 | 60 | #include "symfile.h" |
ae5a43e0 | 61 | #include "gdb_obstack.h" |
9544c605 | 62 | #include "gdbcore.h" |
698ba934 | 63 | #include "top.h" |
7c953934 | 64 | #include "main.h" |
cb08cc53 | 65 | #include "solist.h" |
c906108c | 66 | |
8731e58e | 67 | #include "inferior.h" /* for signed_pointer_to_address */ |
ac2e2ef7 | 68 | |
2d1b2124 AC |
69 | #include <sys/param.h> /* For MAXPATHLEN */ |
70 | ||
3b78cdbb | 71 | #include "gdb_curses.h" |
020cc13c | 72 | |
dbda9972 | 73 | #include "readline/readline.h" |
c906108c | 74 | |
75feb17d DJ |
75 | #include <sys/time.h> |
76 | #include <time.h> | |
77 | ||
8626589c | 78 | #include "gdb_usleep.h" |
390a8aca | 79 | #include "interps.h" |
dc92e161 | 80 | #include "gdb_regex.h" |
8626589c | 81 | |
a3828db0 | 82 | #if !HAVE_DECL_MALLOC |
5ac79d78 | 83 | extern PTR malloc (); /* ARI: PTR */ |
3c37485b | 84 | #endif |
a3828db0 | 85 | #if !HAVE_DECL_REALLOC |
5ac79d78 | 86 | extern PTR realloc (); /* ARI: PTR */ |
0e52036f | 87 | #endif |
a3828db0 | 88 | #if !HAVE_DECL_FREE |
81b8eb80 AC |
89 | extern void free (); |
90 | #endif | |
81b8eb80 | 91 | |
9a4105ab | 92 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
93 | |
94 | /* Prototypes for local functions */ | |
95 | ||
d9fcf2fb | 96 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
a0b31db1 | 97 | va_list, int) ATTRIBUTE_PRINTF (2, 0); |
c906108c | 98 | |
d9fcf2fb | 99 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 100 | |
a14ed312 | 101 | static void prompt_for_continue (void); |
c906108c | 102 | |
eb0d3137 | 103 | static void set_screen_size (void); |
a14ed312 | 104 | static void set_width (void); |
c906108c | 105 | |
260c0b2a DE |
106 | /* Time spent in prompt_for_continue in the currently executing command |
107 | waiting for user to respond. | |
108 | Initialized in make_command_stats_cleanup. | |
109 | Modified in prompt_for_continue and defaulted_query. | |
110 | Used in report_command_stats. */ | |
111 | ||
112 | static struct timeval prompt_for_continue_wait_time; | |
113 | ||
75feb17d DJ |
114 | /* A flag indicating whether to timestamp debugging messages. */ |
115 | ||
116 | static int debug_timestamp = 0; | |
117 | ||
581e13c1 | 118 | /* Nonzero if we have job control. */ |
c906108c SS |
119 | |
120 | int job_control; | |
121 | ||
522002f9 | 122 | #ifndef HAVE_PYTHON |
c906108c SS |
123 | /* Nonzero means a quit has been requested. */ |
124 | ||
125 | int quit_flag; | |
522002f9 | 126 | #endif /* HAVE_PYTHON */ |
c906108c SS |
127 | |
128 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
129 | than waiting until QUIT is executed. Be careful in setting this; | |
130 | code which executes with immediate_quit set has to be very careful | |
131 | about being able to deal with being interrupted at any time. It is | |
132 | almost always better to use QUIT; the only exception I can think of | |
133 | is being able to quit out of a system call (using EINTR loses if | |
134 | the SIGINT happens between the previous QUIT and the system call). | |
135 | To immediately quit in the case in which a SIGINT happens between | |
136 | the previous QUIT and setting immediate_quit (desirable anytime we | |
137 | expect to block), call QUIT after setting immediate_quit. */ | |
138 | ||
139 | int immediate_quit; | |
140 | ||
522002f9 TT |
141 | #ifndef HAVE_PYTHON |
142 | ||
143 | /* Clear the quit flag. */ | |
144 | ||
145 | void | |
146 | clear_quit_flag (void) | |
147 | { | |
148 | quit_flag = 0; | |
149 | } | |
150 | ||
151 | /* Set the quit flag. */ | |
152 | ||
153 | void | |
154 | set_quit_flag (void) | |
155 | { | |
156 | quit_flag = 1; | |
157 | } | |
158 | ||
159 | /* Return true if the quit flag has been set, false otherwise. */ | |
160 | ||
161 | int | |
162 | check_quit_flag (void) | |
163 | { | |
164 | /* This is written in a particular way to avoid races. */ | |
165 | if (quit_flag) | |
166 | { | |
167 | quit_flag = 0; | |
168 | return 1; | |
169 | } | |
170 | ||
171 | return 0; | |
172 | } | |
173 | ||
174 | #endif /* HAVE_PYTHON */ | |
175 | ||
c906108c SS |
176 | /* Nonzero means that strings with character values >0x7F should be printed |
177 | as octal escapes. Zero means just print the value (e.g. it's an | |
178 | international character, and the terminal or window can cope.) */ | |
179 | ||
180 | int sevenbit_strings = 0; | |
920d2a44 AC |
181 | static void |
182 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
183 | struct cmd_list_element *c, const char *value) | |
184 | { | |
3e43a32a MS |
185 | fprintf_filtered (file, _("Printing of 8-bit characters " |
186 | "in strings as \\nnn is %s.\n"), | |
920d2a44 AC |
187 | value); |
188 | } | |
c906108c SS |
189 | |
190 | /* String to be printed before error messages, if any. */ | |
191 | ||
192 | char *error_pre_print; | |
193 | ||
194 | /* String to be printed before quit messages, if any. */ | |
195 | ||
196 | char *quit_pre_print; | |
197 | ||
198 | /* String to be printed before warning messages, if any. */ | |
199 | ||
200 | char *warning_pre_print = "\nwarning: "; | |
201 | ||
202 | int pagination_enabled = 1; | |
920d2a44 AC |
203 | static void |
204 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
205 | struct cmd_list_element *c, const char *value) | |
206 | { | |
207 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
208 | } | |
209 | ||
c906108c | 210 | \f |
c27f5738 | 211 | /* Cleanup utilities. |
c5aa993b | 212 | |
c27f5738 DE |
213 | These are not defined in cleanups.c (nor declared in cleanups.h) |
214 | because while they use the "cleanup API" they are not part of the | |
215 | "cleanup API". */ | |
7a292a7a | 216 | |
7a292a7a | 217 | static void |
fba45db2 | 218 | do_freeargv (void *arg) |
7a292a7a | 219 | { |
c5aa993b | 220 | freeargv ((char **) arg); |
7a292a7a SS |
221 | } |
222 | ||
223 | struct cleanup * | |
fba45db2 | 224 | make_cleanup_freeargv (char **arg) |
7a292a7a | 225 | { |
e0088cfd | 226 | return make_cleanup (do_freeargv, arg); |
7a292a7a SS |
227 | } |
228 | ||
5a56e9c5 DE |
229 | static void |
230 | do_dyn_string_delete (void *arg) | |
231 | { | |
232 | dyn_string_delete ((dyn_string_t) arg); | |
233 | } | |
234 | ||
235 | struct cleanup * | |
236 | make_cleanup_dyn_string_delete (dyn_string_t arg) | |
237 | { | |
e0088cfd | 238 | return make_cleanup (do_dyn_string_delete, arg); |
5a56e9c5 DE |
239 | } |
240 | ||
5c65bbb6 AC |
241 | static void |
242 | do_bfd_close_cleanup (void *arg) | |
243 | { | |
cbb099e8 | 244 | gdb_bfd_unref (arg); |
5c65bbb6 AC |
245 | } |
246 | ||
247 | struct cleanup * | |
f9a062ff | 248 | make_cleanup_bfd_unref (bfd *abfd) |
5c65bbb6 AC |
249 | { |
250 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
251 | } | |
252 | ||
f5ff8c83 AC |
253 | static void |
254 | do_close_cleanup (void *arg) | |
255 | { | |
f042532c | 256 | int *fd = arg; |
e0627e85 | 257 | |
f042532c | 258 | close (*fd); |
f5ff8c83 AC |
259 | } |
260 | ||
261 | struct cleanup * | |
262 | make_cleanup_close (int fd) | |
263 | { | |
f042532c | 264 | int *saved_fd = xmalloc (sizeof (fd)); |
e0627e85 | 265 | |
f042532c | 266 | *saved_fd = fd; |
a05016c0 | 267 | return make_cleanup_dtor (do_close_cleanup, saved_fd, xfree); |
f5ff8c83 AC |
268 | } |
269 | ||
7c8a8b04 TT |
270 | /* Helper function which does the work for make_cleanup_fclose. */ |
271 | ||
272 | static void | |
273 | do_fclose_cleanup (void *arg) | |
274 | { | |
c02866a0 | 275 | FILE *file = arg; |
e0627e85 | 276 | |
c02866a0 | 277 | fclose (file); |
7c8a8b04 TT |
278 | } |
279 | ||
280 | /* Return a new cleanup that closes FILE. */ | |
281 | ||
282 | struct cleanup * | |
283 | make_cleanup_fclose (FILE *file) | |
284 | { | |
285 | return make_cleanup (do_fclose_cleanup, file); | |
286 | } | |
287 | ||
16ad9370 TT |
288 | /* Helper function which does the work for make_cleanup_obstack_free. */ |
289 | ||
290 | static void | |
291 | do_obstack_free (void *arg) | |
292 | { | |
293 | struct obstack *ob = arg; | |
e0627e85 | 294 | |
16ad9370 TT |
295 | obstack_free (ob, NULL); |
296 | } | |
297 | ||
298 | /* Return a new cleanup that frees OBSTACK. */ | |
299 | ||
300 | struct cleanup * | |
301 | make_cleanup_obstack_free (struct obstack *obstack) | |
302 | { | |
303 | return make_cleanup (do_obstack_free, obstack); | |
304 | } | |
305 | ||
11cf8741 | 306 | static void |
d9fcf2fb | 307 | do_ui_file_delete (void *arg) |
11cf8741 | 308 | { |
d9fcf2fb | 309 | ui_file_delete (arg); |
11cf8741 JM |
310 | } |
311 | ||
312 | struct cleanup * | |
d9fcf2fb | 313 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 314 | { |
e0088cfd | 315 | return make_cleanup (do_ui_file_delete, arg); |
11cf8741 JM |
316 | } |
317 | ||
8d4d924b JK |
318 | /* Helper function for make_cleanup_ui_out_redirect_pop. */ |
319 | ||
320 | static void | |
321 | do_ui_out_redirect_pop (void *arg) | |
322 | { | |
323 | struct ui_out *uiout = arg; | |
324 | ||
325 | if (ui_out_redirect (uiout, NULL) < 0) | |
326 | warning (_("Cannot restore redirection of the current output protocol")); | |
327 | } | |
328 | ||
329 | /* Return a new cleanup that pops the last redirection by ui_out_redirect | |
330 | with NULL parameter. */ | |
331 | ||
332 | struct cleanup * | |
333 | make_cleanup_ui_out_redirect_pop (struct ui_out *uiout) | |
334 | { | |
e0088cfd | 335 | return make_cleanup (do_ui_out_redirect_pop, uiout); |
8d4d924b JK |
336 | } |
337 | ||
7b90c3f9 JB |
338 | static void |
339 | do_free_section_addr_info (void *arg) | |
340 | { | |
341 | free_section_addr_info (arg); | |
342 | } | |
343 | ||
344 | struct cleanup * | |
345 | make_cleanup_free_section_addr_info (struct section_addr_info *addrs) | |
346 | { | |
e0088cfd | 347 | return make_cleanup (do_free_section_addr_info, addrs); |
7b90c3f9 JB |
348 | } |
349 | ||
0b080f59 VP |
350 | struct restore_integer_closure |
351 | { | |
352 | int *variable; | |
353 | int value; | |
354 | }; | |
355 | ||
356 | static void | |
357 | restore_integer (void *p) | |
358 | { | |
359 | struct restore_integer_closure *closure = p; | |
e0627e85 | 360 | |
0b080f59 VP |
361 | *(closure->variable) = closure->value; |
362 | } | |
7b90c3f9 | 363 | |
3e43a32a MS |
364 | /* Remember the current value of *VARIABLE and make it restored when |
365 | the cleanup is run. */ | |
5da1313b | 366 | |
c906108c | 367 | struct cleanup * |
0b080f59 VP |
368 | make_cleanup_restore_integer (int *variable) |
369 | { | |
370 | struct restore_integer_closure *c = | |
371 | xmalloc (sizeof (struct restore_integer_closure)); | |
e0627e85 | 372 | |
0b080f59 VP |
373 | c->variable = variable; |
374 | c->value = *variable; | |
375 | ||
e0088cfd | 376 | return make_cleanup_dtor (restore_integer, (void *) c, xfree); |
0b080f59 VP |
377 | } |
378 | ||
3e43a32a MS |
379 | /* Remember the current value of *VARIABLE and make it restored when |
380 | the cleanup is run. */ | |
5da1313b JK |
381 | |
382 | struct cleanup * | |
383 | make_cleanup_restore_uinteger (unsigned int *variable) | |
384 | { | |
385 | return make_cleanup_restore_integer ((int *) variable); | |
386 | } | |
387 | ||
c0edd9ed JK |
388 | /* Helper for make_cleanup_unpush_target. */ |
389 | ||
390 | static void | |
391 | do_unpush_target (void *arg) | |
392 | { | |
393 | struct target_ops *ops = arg; | |
394 | ||
395 | unpush_target (ops); | |
396 | } | |
397 | ||
398 | /* Return a new cleanup that unpushes OPS. */ | |
399 | ||
400 | struct cleanup * | |
401 | make_cleanup_unpush_target (struct target_ops *ops) | |
402 | { | |
e0088cfd | 403 | return make_cleanup (do_unpush_target, ops); |
c0edd9ed JK |
404 | } |
405 | ||
8e3b41a9 JK |
406 | /* Helper for make_cleanup_htab_delete compile time checking the types. */ |
407 | ||
408 | static void | |
409 | do_htab_delete_cleanup (void *htab_voidp) | |
410 | { | |
411 | htab_t htab = htab_voidp; | |
412 | ||
413 | htab_delete (htab); | |
414 | } | |
415 | ||
416 | /* Return a new cleanup that deletes HTAB. */ | |
417 | ||
418 | struct cleanup * | |
419 | make_cleanup_htab_delete (htab_t htab) | |
420 | { | |
421 | return make_cleanup (do_htab_delete_cleanup, htab); | |
422 | } | |
423 | ||
5da1313b JK |
424 | struct restore_ui_file_closure |
425 | { | |
426 | struct ui_file **variable; | |
427 | struct ui_file *value; | |
428 | }; | |
429 | ||
430 | static void | |
431 | do_restore_ui_file (void *p) | |
432 | { | |
433 | struct restore_ui_file_closure *closure = p; | |
434 | ||
435 | *(closure->variable) = closure->value; | |
436 | } | |
437 | ||
438 | /* Remember the current value of *VARIABLE and make it restored when | |
439 | the cleanup is run. */ | |
440 | ||
441 | struct cleanup * | |
442 | make_cleanup_restore_ui_file (struct ui_file **variable) | |
443 | { | |
444 | struct restore_ui_file_closure *c = XNEW (struct restore_ui_file_closure); | |
445 | ||
446 | c->variable = variable; | |
447 | c->value = *variable; | |
448 | ||
449 | return make_cleanup_dtor (do_restore_ui_file, (void *) c, xfree); | |
450 | } | |
451 | ||
028d0ed5 TJB |
452 | /* Helper for make_cleanup_value_free_to_mark. */ |
453 | ||
454 | static void | |
455 | do_value_free_to_mark (void *value) | |
456 | { | |
457 | value_free_to_mark ((struct value *) value); | |
458 | } | |
459 | ||
460 | /* Free all values allocated since MARK was obtained by value_mark | |
461 | (except for those released) when the cleanup is run. */ | |
462 | ||
463 | struct cleanup * | |
464 | make_cleanup_value_free_to_mark (struct value *mark) | |
465 | { | |
e0088cfd | 466 | return make_cleanup (do_value_free_to_mark, mark); |
028d0ed5 TJB |
467 | } |
468 | ||
72fc29ff TT |
469 | /* Helper for make_cleanup_value_free. */ |
470 | ||
471 | static void | |
472 | do_value_free (void *value) | |
473 | { | |
474 | value_free (value); | |
475 | } | |
476 | ||
477 | /* Free VALUE. */ | |
478 | ||
479 | struct cleanup * | |
480 | make_cleanup_value_free (struct value *value) | |
481 | { | |
e0088cfd | 482 | return make_cleanup (do_value_free, value); |
72fc29ff TT |
483 | } |
484 | ||
cb08cc53 JK |
485 | /* Helper for make_cleanup_free_so. */ |
486 | ||
487 | static void | |
488 | do_free_so (void *arg) | |
489 | { | |
490 | struct so_list *so = arg; | |
491 | ||
492 | free_so (so); | |
493 | } | |
494 | ||
495 | /* Make cleanup handler calling free_so for SO. */ | |
496 | ||
497 | struct cleanup * | |
498 | make_cleanup_free_so (struct so_list *so) | |
499 | { | |
e0088cfd | 500 | return make_cleanup (do_free_so, so); |
cb08cc53 JK |
501 | } |
502 | ||
5b12a61c JK |
503 | /* Helper for make_cleanup_restore_current_language. */ |
504 | ||
505 | static void | |
506 | do_restore_current_language (void *p) | |
507 | { | |
508 | enum language saved_lang = (uintptr_t) p; | |
509 | ||
510 | set_language (saved_lang); | |
511 | } | |
512 | ||
513 | /* Remember the current value of CURRENT_LANGUAGE and make it restored when | |
514 | the cleanup is run. */ | |
515 | ||
516 | struct cleanup * | |
517 | make_cleanup_restore_current_language (void) | |
518 | { | |
519 | enum language saved_lang = current_language->la_language; | |
520 | ||
521 | return make_cleanup (do_restore_current_language, | |
522 | (void *) (uintptr_t) saved_lang); | |
523 | } | |
524 | ||
c906108c SS |
525 | /* This function is useful for cleanups. |
526 | Do | |
527 | ||
c5aa993b JM |
528 | foo = xmalloc (...); |
529 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
530 | |
531 | to arrange to free the object thus allocated. */ | |
532 | ||
533 | void | |
2f9429ae | 534 | free_current_contents (void *ptr) |
c906108c | 535 | { |
2f9429ae | 536 | void **location = ptr; |
e0627e85 | 537 | |
e2f9c474 | 538 | if (location == NULL) |
8e65ff28 | 539 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 540 | _("free_current_contents: NULL pointer")); |
2f9429ae | 541 | if (*location != NULL) |
e2f9c474 | 542 | { |
b8c9b27d | 543 | xfree (*location); |
e2f9c474 AC |
544 | *location = NULL; |
545 | } | |
c906108c | 546 | } |
c906108c | 547 | \f |
c5aa993b | 548 | |
8731e58e | 549 | |
f5a96129 AC |
550 | /* Print a warning message. The first argument STRING is the warning |
551 | message, used as an fprintf format string, the second is the | |
552 | va_list of arguments for that string. A warning is unfiltered (not | |
553 | paginated) so that the user does not need to page through each | |
554 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
555 | |
556 | void | |
f5a96129 | 557 | vwarning (const char *string, va_list args) |
c906108c | 558 | { |
9a4105ab AC |
559 | if (deprecated_warning_hook) |
560 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
561 | else |
562 | { | |
563 | target_terminal_ours (); | |
581e13c1 | 564 | wrap_here (""); /* Force out any buffered output. */ |
f5a96129 AC |
565 | gdb_flush (gdb_stdout); |
566 | if (warning_pre_print) | |
306d9ac5 | 567 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
568 | vfprintf_unfiltered (gdb_stderr, string, args); |
569 | fprintf_unfiltered (gdb_stderr, "\n"); | |
570 | va_end (args); | |
571 | } | |
c906108c SS |
572 | } |
573 | ||
574 | /* Print a warning message. | |
575 | The first argument STRING is the warning message, used as a fprintf string, | |
576 | and the remaining args are passed as arguments to it. | |
577 | The primary difference between warnings and errors is that a warning | |
578 | does not force the return to command level. */ | |
579 | ||
c906108c | 580 | void |
8731e58e | 581 | warning (const char *string, ...) |
c906108c SS |
582 | { |
583 | va_list args; | |
e0627e85 | 584 | |
c906108c | 585 | va_start (args, string); |
f5a96129 AC |
586 | vwarning (string, args); |
587 | va_end (args); | |
c906108c SS |
588 | } |
589 | ||
c906108c SS |
590 | /* Print an error message and return to command level. |
591 | The first argument STRING is the error message, used as a fprintf string, | |
592 | and the remaining args are passed as arguments to it. */ | |
593 | ||
c25c4a8b | 594 | void |
4ce44c66 JM |
595 | verror (const char *string, va_list args) |
596 | { | |
6b1b7650 | 597 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
598 | } |
599 | ||
c25c4a8b | 600 | void |
8731e58e | 601 | error (const char *string, ...) |
c906108c SS |
602 | { |
603 | va_list args; | |
e0627e85 | 604 | |
c906108c | 605 | va_start (args, string); |
6b1b7650 | 606 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 | 607 | va_end (args); |
c906108c SS |
608 | } |
609 | ||
d75e3c94 JJ |
610 | /* Print an error message and quit. |
611 | The first argument STRING is the error message, used as a fprintf string, | |
612 | and the remaining args are passed as arguments to it. */ | |
613 | ||
c25c4a8b | 614 | void |
d75e3c94 JJ |
615 | vfatal (const char *string, va_list args) |
616 | { | |
6b1b7650 | 617 | throw_vfatal (string, args); |
d75e3c94 JJ |
618 | } |
619 | ||
c25c4a8b | 620 | void |
d75e3c94 JJ |
621 | fatal (const char *string, ...) |
622 | { | |
623 | va_list args; | |
e0627e85 | 624 | |
d75e3c94 | 625 | va_start (args, string); |
6b1b7650 | 626 | throw_vfatal (string, args); |
d75e3c94 JJ |
627 | va_end (args); |
628 | } | |
629 | ||
c25c4a8b | 630 | void |
d75e3c94 | 631 | error_stream (struct ui_file *stream) |
2acceee2 | 632 | { |
759ef836 | 633 | char *message = ui_file_xstrdup (stream, NULL); |
e0627e85 | 634 | |
6b1b7650 | 635 | make_cleanup (xfree, message); |
8a3fe4f8 | 636 | error (("%s"), message); |
2acceee2 | 637 | } |
c906108c | 638 | |
7991dee7 JK |
639 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
640 | ||
641 | static void | |
642 | dump_core (void) | |
643 | { | |
644 | #ifdef HAVE_SETRLIMIT | |
645 | struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY }; | |
646 | ||
647 | setrlimit (RLIMIT_CORE, &rlim); | |
648 | #endif /* HAVE_SETRLIMIT */ | |
649 | ||
650 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
651 | } | |
652 | ||
3e43a32a MS |
653 | /* Check whether GDB will be able to dump core using the dump_core |
654 | function. */ | |
7991dee7 JK |
655 | |
656 | static int | |
657 | can_dump_core (const char *reason) | |
658 | { | |
659 | #ifdef HAVE_GETRLIMIT | |
660 | struct rlimit rlim; | |
661 | ||
662 | /* Be quiet and assume we can dump if an error is returned. */ | |
663 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
664 | return 1; | |
665 | ||
666 | if (rlim.rlim_max == 0) | |
667 | { | |
668 | fprintf_unfiltered (gdb_stderr, | |
3e43a32a MS |
669 | _("%s\nUnable to dump core, use `ulimit -c" |
670 | " unlimited' before executing GDB next time.\n"), | |
671 | reason); | |
7991dee7 JK |
672 | return 0; |
673 | } | |
674 | #endif /* HAVE_GETRLIMIT */ | |
675 | ||
676 | return 1; | |
677 | } | |
678 | ||
3c16cced PA |
679 | /* Allow the user to configure the debugger behavior with respect to |
680 | what to do when an internal problem is detected. */ | |
681 | ||
682 | const char internal_problem_ask[] = "ask"; | |
683 | const char internal_problem_yes[] = "yes"; | |
684 | const char internal_problem_no[] = "no"; | |
40478521 | 685 | static const char *const internal_problem_modes[] = |
3c16cced PA |
686 | { |
687 | internal_problem_ask, | |
688 | internal_problem_yes, | |
689 | internal_problem_no, | |
690 | NULL | |
691 | }; | |
3c16cced | 692 | |
581e13c1 | 693 | /* Print a message reporting an internal error/warning. Ask the user |
dec43320 AC |
694 | if they want to continue, dump core, or just exit. Return |
695 | something to indicate a quit. */ | |
c906108c | 696 | |
dec43320 | 697 | struct internal_problem |
c906108c | 698 | { |
dec43320 | 699 | const char *name; |
3c16cced PA |
700 | const char *should_quit; |
701 | const char *should_dump_core; | |
dec43320 AC |
702 | }; |
703 | ||
704 | /* Report a problem, internal to GDB, to the user. Once the problem | |
705 | has been reported, and assuming GDB didn't quit, the caller can | |
706 | either allow execution to resume or throw an error. */ | |
707 | ||
a0b31db1 | 708 | static void ATTRIBUTE_PRINTF (4, 0) |
dec43320 | 709 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 710 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 711 | { |
dec43320 | 712 | static int dejavu; |
375fc983 | 713 | int quit_p; |
7be570e7 | 714 | int dump_core_p; |
714b1282 | 715 | char *reason; |
48be7c1b | 716 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); |
c906108c | 717 | |
dec43320 | 718 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
719 | { |
720 | static char msg[] = "Recursive internal problem.\n"; | |
5d502164 | 721 | |
714b1282 AC |
722 | switch (dejavu) |
723 | { | |
724 | case 0: | |
725 | dejavu = 1; | |
726 | break; | |
727 | case 1: | |
728 | dejavu = 2; | |
729 | fputs_unfiltered (msg, gdb_stderr); | |
7991dee7 | 730 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
731 | default: |
732 | dejavu = 3; | |
bf1d7d9c JB |
733 | /* Newer GLIBC versions put the warn_unused_result attribute |
734 | on write, but this is one of those rare cases where | |
735 | ignoring the return value is correct. Casting to (void) | |
736 | does not fix this problem. This is the solution suggested | |
737 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
738 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
7991dee7 | 739 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
740 | exit (1); |
741 | } | |
742 | } | |
c906108c | 743 | |
dec43320 | 744 | /* Try to get the message out and at the start of a new line. */ |
4261bedc | 745 | target_terminal_ours (); |
dec43320 AC |
746 | begin_line (); |
747 | ||
714b1282 AC |
748 | /* Create a string containing the full error/warning message. Need |
749 | to call query with this full string, as otherwize the reason | |
750 | (error/warning) and question become separated. Format using a | |
751 | style similar to a compiler error message. Include extra detail | |
752 | so that the user knows that they are living on the edge. */ | |
753 | { | |
754 | char *msg; | |
5d502164 | 755 | |
e623b504 | 756 | msg = xstrvprintf (fmt, ap); |
3e43a32a MS |
757 | reason = xstrprintf ("%s:%d: %s: %s\n" |
758 | "A problem internal to GDB has been detected,\n" | |
759 | "further debugging may prove unreliable.", | |
760 | file, line, problem->name, msg); | |
714b1282 AC |
761 | xfree (msg); |
762 | make_cleanup (xfree, reason); | |
763 | } | |
7be570e7 | 764 | |
3c16cced | 765 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 766 | { |
dec43320 | 767 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
768 | this lessens the likelihood of GDB going into an infinite |
769 | loop. */ | |
e360902b | 770 | if (!confirm) |
26bb68be PP |
771 | { |
772 | /* Emit the message and quit. */ | |
773 | fputs_unfiltered (reason, gdb_stderr); | |
774 | fputs_unfiltered ("\n", gdb_stderr); | |
775 | quit_p = 1; | |
776 | } | |
777 | else | |
778 | quit_p = query (_("%s\nQuit this debugging session? "), reason); | |
dec43320 | 779 | } |
3c16cced PA |
780 | else if (problem->should_quit == internal_problem_yes) |
781 | quit_p = 1; | |
782 | else if (problem->should_quit == internal_problem_no) | |
783 | quit_p = 0; | |
784 | else | |
785 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 786 | |
3c16cced | 787 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 788 | { |
7991dee7 JK |
789 | if (!can_dump_core (reason)) |
790 | dump_core_p = 0; | |
791 | else | |
792 | { | |
793 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
794 | `dropping' so that it is easier to see that something went | |
795 | wrong in GDB. */ | |
796 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason); | |
797 | } | |
dec43320 | 798 | } |
3c16cced | 799 | else if (problem->should_dump_core == internal_problem_yes) |
7991dee7 | 800 | dump_core_p = can_dump_core (reason); |
3c16cced PA |
801 | else if (problem->should_dump_core == internal_problem_no) |
802 | dump_core_p = 0; | |
803 | else | |
804 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 805 | |
375fc983 | 806 | if (quit_p) |
7be570e7 JM |
807 | { |
808 | if (dump_core_p) | |
7991dee7 | 809 | dump_core (); |
375fc983 AC |
810 | else |
811 | exit (1); | |
7be570e7 JM |
812 | } |
813 | else | |
814 | { | |
815 | if (dump_core_p) | |
375fc983 | 816 | { |
9b265ec2 | 817 | #ifdef HAVE_WORKING_FORK |
375fc983 | 818 | if (fork () == 0) |
7991dee7 | 819 | dump_core (); |
9b265ec2 | 820 | #endif |
375fc983 | 821 | } |
7be570e7 | 822 | } |
96baa820 JM |
823 | |
824 | dejavu = 0; | |
48be7c1b | 825 | do_cleanups (cleanup); |
dec43320 AC |
826 | } |
827 | ||
828 | static struct internal_problem internal_error_problem = { | |
3c16cced | 829 | "internal-error", internal_problem_ask, internal_problem_ask |
dec43320 AC |
830 | }; |
831 | ||
c25c4a8b | 832 | void |
8731e58e | 833 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
834 | { |
835 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
315a522e | 836 | deprecated_throw_reason (RETURN_ERROR); |
c906108c SS |
837 | } |
838 | ||
c25c4a8b | 839 | void |
8e65ff28 | 840 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
841 | { |
842 | va_list ap; | |
e0627e85 | 843 | |
4ce44c66 | 844 | va_start (ap, string); |
8e65ff28 | 845 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
846 | va_end (ap); |
847 | } | |
848 | ||
dec43320 | 849 | static struct internal_problem internal_warning_problem = { |
3c16cced | 850 | "internal-warning", internal_problem_ask, internal_problem_ask |
dec43320 AC |
851 | }; |
852 | ||
853 | void | |
8731e58e | 854 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
855 | { |
856 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
857 | } | |
858 | ||
859 | void | |
860 | internal_warning (const char *file, int line, const char *string, ...) | |
861 | { | |
862 | va_list ap; | |
e0627e85 | 863 | |
dec43320 AC |
864 | va_start (ap, string); |
865 | internal_vwarning (file, line, string, ap); | |
866 | va_end (ap); | |
867 | } | |
868 | ||
3c16cced PA |
869 | /* Dummy functions to keep add_prefix_cmd happy. */ |
870 | ||
871 | static void | |
872 | set_internal_problem_cmd (char *args, int from_tty) | |
873 | { | |
874 | } | |
875 | ||
876 | static void | |
877 | show_internal_problem_cmd (char *args, int from_tty) | |
878 | { | |
879 | } | |
880 | ||
881 | /* When GDB reports an internal problem (error or warning) it gives | |
882 | the user the opportunity to quit GDB and/or create a core file of | |
883 | the current debug session. This function registers a few commands | |
884 | that make it possible to specify that GDB should always or never | |
885 | quit or create a core file, without asking. The commands look | |
886 | like: | |
887 | ||
888 | maint set PROBLEM-NAME quit ask|yes|no | |
889 | maint show PROBLEM-NAME quit | |
890 | maint set PROBLEM-NAME corefile ask|yes|no | |
891 | maint show PROBLEM-NAME corefile | |
892 | ||
893 | Where PROBLEM-NAME is currently "internal-error" or | |
894 | "internal-warning". */ | |
895 | ||
896 | static void | |
897 | add_internal_problem_command (struct internal_problem *problem) | |
898 | { | |
899 | struct cmd_list_element **set_cmd_list; | |
900 | struct cmd_list_element **show_cmd_list; | |
901 | char *set_doc; | |
902 | char *show_doc; | |
903 | ||
904 | set_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
905 | show_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
906 | *set_cmd_list = NULL; | |
907 | *show_cmd_list = NULL; | |
908 | ||
909 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
910 | problem->name); | |
911 | ||
912 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
913 | problem->name); | |
914 | ||
915 | add_prefix_cmd ((char*) problem->name, | |
916 | class_maintenance, set_internal_problem_cmd, set_doc, | |
917 | set_cmd_list, | |
c4f7c687 MK |
918 | concat ("maintenance set ", problem->name, " ", |
919 | (char *) NULL), | |
3c16cced PA |
920 | 0/*allow-unknown*/, &maintenance_set_cmdlist); |
921 | ||
922 | add_prefix_cmd ((char*) problem->name, | |
923 | class_maintenance, show_internal_problem_cmd, show_doc, | |
924 | show_cmd_list, | |
c4f7c687 MK |
925 | concat ("maintenance show ", problem->name, " ", |
926 | (char *) NULL), | |
3c16cced PA |
927 | 0/*allow-unknown*/, &maintenance_show_cmdlist); |
928 | ||
3e43a32a MS |
929 | set_doc = xstrprintf (_("Set whether GDB should quit " |
930 | "when an %s is detected"), | |
3c16cced | 931 | problem->name); |
3e43a32a MS |
932 | show_doc = xstrprintf (_("Show whether GDB will quit " |
933 | "when an %s is detected"), | |
3c16cced PA |
934 | problem->name); |
935 | add_setshow_enum_cmd ("quit", class_maintenance, | |
936 | internal_problem_modes, | |
937 | &problem->should_quit, | |
938 | set_doc, | |
939 | show_doc, | |
940 | NULL, /* help_doc */ | |
941 | NULL, /* setfunc */ | |
942 | NULL, /* showfunc */ | |
943 | set_cmd_list, | |
944 | show_cmd_list); | |
945 | ||
1eefb858 TT |
946 | xfree (set_doc); |
947 | xfree (show_doc); | |
948 | ||
3e43a32a MS |
949 | set_doc = xstrprintf (_("Set whether GDB should create a core " |
950 | "file of GDB when %s is detected"), | |
3c16cced | 951 | problem->name); |
3e43a32a MS |
952 | show_doc = xstrprintf (_("Show whether GDB will create a core " |
953 | "file of GDB when %s is detected"), | |
3c16cced PA |
954 | problem->name); |
955 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
956 | internal_problem_modes, | |
957 | &problem->should_dump_core, | |
958 | set_doc, | |
959 | show_doc, | |
960 | NULL, /* help_doc */ | |
961 | NULL, /* setfunc */ | |
962 | NULL, /* showfunc */ | |
963 | set_cmd_list, | |
964 | show_cmd_list); | |
1eefb858 TT |
965 | |
966 | xfree (set_doc); | |
967 | xfree (show_doc); | |
3c16cced PA |
968 | } |
969 | ||
c906108c | 970 | /* Print the system error message for errno, and also mention STRING |
598d3636 JK |
971 | as the file name for which the error was encountered. Use ERRCODE |
972 | for the thrown exception. Then return to command level. */ | |
c906108c | 973 | |
c25c4a8b | 974 | void |
598d3636 | 975 | throw_perror_with_name (enum errors errcode, const char *string) |
c906108c SS |
976 | { |
977 | char *err; | |
978 | char *combined; | |
979 | ||
980 | err = safe_strerror (errno); | |
981 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
982 | strcpy (combined, string); | |
983 | strcat (combined, ": "); | |
984 | strcat (combined, err); | |
985 | ||
986 | /* I understand setting these is a matter of taste. Still, some people | |
987 | may clear errno but not know about bfd_error. Doing this here is not | |
581e13c1 | 988 | unreasonable. */ |
c906108c SS |
989 | bfd_set_error (bfd_error_no_error); |
990 | errno = 0; | |
991 | ||
598d3636 JK |
992 | throw_error (errcode, _("%s."), combined); |
993 | } | |
994 | ||
995 | /* See throw_perror_with_name, ERRCODE defaults here to GENERIC_ERROR. */ | |
996 | ||
997 | void | |
998 | perror_with_name (const char *string) | |
999 | { | |
1000 | throw_perror_with_name (GENERIC_ERROR, string); | |
c906108c SS |
1001 | } |
1002 | ||
1003 | /* Print the system error message for ERRCODE, and also mention STRING | |
1004 | as the file name for which the error was encountered. */ | |
1005 | ||
1006 | void | |
6972bc8b | 1007 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
1008 | { |
1009 | char *err; | |
1010 | char *combined; | |
1011 | ||
1012 | err = safe_strerror (errcode); | |
1013 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1014 | strcpy (combined, string); | |
1015 | strcat (combined, ": "); | |
1016 | strcat (combined, err); | |
1017 | ||
1018 | /* We want anything which was printed on stdout to come out first, before | |
1019 | this message. */ | |
1020 | gdb_flush (gdb_stdout); | |
1021 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
1022 | } | |
1023 | ||
1024 | /* Control C eventually causes this to be called, at a convenient time. */ | |
1025 | ||
1026 | void | |
fba45db2 | 1027 | quit (void) |
c906108c | 1028 | { |
7be570e7 JM |
1029 | #ifdef __MSDOS__ |
1030 | /* No steenking SIGINT will ever be coming our way when the | |
1031 | program is resumed. Don't lie. */ | |
e06e2353 | 1032 | fatal ("Quit"); |
7be570e7 | 1033 | #else |
c906108c | 1034 | if (job_control |
8731e58e AC |
1035 | /* If there is no terminal switching for this target, then we can't |
1036 | possibly get screwed by the lack of job control. */ | |
c906108c | 1037 | || current_target.to_terminal_ours == NULL) |
e06e2353 | 1038 | fatal ("Quit"); |
c906108c | 1039 | else |
e06e2353 | 1040 | fatal ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 1041 | #endif |
c906108c SS |
1042 | } |
1043 | ||
c906108c | 1044 | \f |
c906108c | 1045 | /* Called when a memory allocation fails, with the number of bytes of |
581e13c1 | 1046 | memory requested in SIZE. */ |
c906108c | 1047 | |
c25c4a8b | 1048 | void |
d26e3629 | 1049 | malloc_failure (long size) |
c906108c SS |
1050 | { |
1051 | if (size > 0) | |
1052 | { | |
8e65ff28 | 1053 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 1054 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 1055 | size); |
c906108c SS |
1056 | } |
1057 | else | |
1058 | { | |
e2e0b3e5 | 1059 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
1060 | } |
1061 | } | |
1062 | ||
c906108c SS |
1063 | /* My replacement for the read system call. |
1064 | Used like `read' but keeps going if `read' returns too soon. */ | |
1065 | ||
1066 | int | |
fba45db2 | 1067 | myread (int desc, char *addr, int len) |
c906108c | 1068 | { |
52f0bd74 | 1069 | int val; |
c906108c SS |
1070 | int orglen = len; |
1071 | ||
1072 | while (len > 0) | |
1073 | { | |
1074 | val = read (desc, addr, len); | |
1075 | if (val < 0) | |
1076 | return val; | |
1077 | if (val == 0) | |
1078 | return orglen - len; | |
1079 | len -= val; | |
1080 | addr += val; | |
1081 | } | |
1082 | return orglen; | |
1083 | } | |
d26e3629 | 1084 | |
c906108c | 1085 | void |
aa1ee363 | 1086 | print_spaces (int n, struct ui_file *file) |
c906108c | 1087 | { |
392a587b | 1088 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1089 | } |
1090 | ||
1091 | /* Print a host address. */ | |
1092 | ||
1093 | void | |
ac16bf07 | 1094 | gdb_print_host_address (const void *addr, struct ui_file *stream) |
c906108c | 1095 | { |
ea8992ce | 1096 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 1097 | } |
c906108c | 1098 | \f |
c5aa993b | 1099 | |
dc92e161 TT |
1100 | /* A cleanup function that calls regfree. */ |
1101 | ||
1102 | static void | |
1103 | do_regfree_cleanup (void *r) | |
1104 | { | |
1105 | regfree (r); | |
1106 | } | |
1107 | ||
1108 | /* Create a new cleanup that frees the compiled regular expression R. */ | |
1109 | ||
1110 | struct cleanup * | |
1111 | make_regfree_cleanup (regex_t *r) | |
1112 | { | |
1113 | return make_cleanup (do_regfree_cleanup, r); | |
1114 | } | |
1115 | ||
1116 | /* Return an xmalloc'd error message resulting from a regular | |
1117 | expression compilation failure. */ | |
1118 | ||
1119 | char * | |
1120 | get_regcomp_error (int code, regex_t *rx) | |
1121 | { | |
1122 | size_t length = regerror (code, rx, NULL, 0); | |
1123 | char *result = xmalloc (length); | |
1124 | ||
1125 | regerror (code, rx, result, length); | |
1126 | return result; | |
1127 | } | |
1128 | ||
cc16e6c9 | 1129 | /* Compile a regexp and throw an exception on error. This returns a |
db26349c TT |
1130 | cleanup to free the resulting pattern on success. RX must not be |
1131 | NULL. */ | |
cc16e6c9 TT |
1132 | |
1133 | struct cleanup * | |
1134 | compile_rx_or_error (regex_t *pattern, const char *rx, const char *message) | |
1135 | { | |
1136 | int code; | |
1137 | ||
db26349c | 1138 | gdb_assert (rx != NULL); |
cc16e6c9 TT |
1139 | |
1140 | code = regcomp (pattern, rx, REG_NOSUB); | |
1141 | if (code != 0) | |
1142 | { | |
1143 | char *err = get_regcomp_error (code, pattern); | |
1144 | ||
1145 | make_cleanup (xfree, err); | |
1146 | error (("%s: %s"), message, err); | |
1147 | } | |
1148 | ||
1149 | return make_regfree_cleanup (pattern); | |
1150 | } | |
1151 | ||
dc92e161 TT |
1152 | \f |
1153 | ||
981c7f5a | 1154 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 1155 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
1156 | answer is yes, or default the answer to the specified default |
1157 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
1158 | default answer, or '\0' for no default. | |
cbdeadca JJ |
1159 | CTLSTR is the control string and should end in "? ". It should |
1160 | not say how to answer, because we do that. | |
1161 | ARGS are the arguments passed along with the CTLSTR argument to | |
1162 | printf. */ | |
1163 | ||
a0b31db1 | 1164 | static int ATTRIBUTE_PRINTF (1, 0) |
cbdeadca JJ |
1165 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
1166 | { | |
1167 | int answer; | |
1168 | int ans2; | |
1169 | int retval; | |
1170 | int def_value; | |
1171 | char def_answer, not_def_answer; | |
981c7f5a | 1172 | char *y_string, *n_string, *question; |
260c0b2a DE |
1173 | /* Used to add duration we waited for user to respond to |
1174 | prompt_for_continue_wait_time. */ | |
1175 | struct timeval prompt_started, prompt_ended, prompt_delta; | |
cbdeadca JJ |
1176 | |
1177 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
1178 | if (defchar == '\0') |
1179 | { | |
1180 | def_value = 1; | |
1181 | def_answer = 'Y'; | |
1182 | not_def_answer = 'N'; | |
1183 | y_string = "y"; | |
1184 | n_string = "n"; | |
1185 | } | |
1186 | else if (defchar == 'y') | |
cbdeadca JJ |
1187 | { |
1188 | def_value = 1; | |
1189 | def_answer = 'Y'; | |
1190 | not_def_answer = 'N'; | |
1191 | y_string = "[y]"; | |
1192 | n_string = "n"; | |
1193 | } | |
1194 | else | |
1195 | { | |
1196 | def_value = 0; | |
1197 | def_answer = 'N'; | |
1198 | not_def_answer = 'Y'; | |
1199 | y_string = "y"; | |
1200 | n_string = "[n]"; | |
1201 | } | |
1202 | ||
981c7f5a | 1203 | /* Automatically answer the default value if the user did not want |
a502cf95 | 1204 | prompts or the command was issued with the server prefix. */ |
e360902b | 1205 | if (!confirm || server_command) |
981c7f5a DJ |
1206 | return def_value; |
1207 | ||
1208 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 1209 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
1210 | way, important error messages don't get lost when talking to GDB |
1211 | over a pipe. */ | |
c63a1f86 | 1212 | if (! input_from_terminal_p ()) |
981c7f5a DJ |
1213 | { |
1214 | wrap_here (""); | |
1215 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1216 | ||
3e43a32a MS |
1217 | printf_filtered (_("(%s or %s) [answered %c; " |
1218 | "input not from terminal]\n"), | |
981c7f5a DJ |
1219 | y_string, n_string, def_answer); |
1220 | gdb_flush (gdb_stdout); | |
1221 | ||
1222 | return def_value; | |
1223 | } | |
1224 | ||
9a4105ab | 1225 | if (deprecated_query_hook) |
cbdeadca | 1226 | { |
9a4105ab | 1227 | return deprecated_query_hook (ctlstr, args); |
cbdeadca JJ |
1228 | } |
1229 | ||
981c7f5a DJ |
1230 | /* Format the question outside of the loop, to avoid reusing args. */ |
1231 | question = xstrvprintf (ctlstr, args); | |
1232 | ||
260c0b2a DE |
1233 | /* Used for calculating time spend waiting for user. */ |
1234 | gettimeofday (&prompt_started, NULL); | |
1235 | ||
cbdeadca JJ |
1236 | while (1) |
1237 | { | |
581e13c1 | 1238 | wrap_here (""); /* Flush any buffered output. */ |
cbdeadca JJ |
1239 | gdb_flush (gdb_stdout); |
1240 | ||
1241 | if (annotation_level > 1) | |
a3f17187 | 1242 | printf_filtered (("\n\032\032pre-query\n")); |
cbdeadca | 1243 | |
981c7f5a | 1244 | fputs_filtered (question, gdb_stdout); |
a3f17187 | 1245 | printf_filtered (_("(%s or %s) "), y_string, n_string); |
cbdeadca JJ |
1246 | |
1247 | if (annotation_level > 1) | |
a3f17187 | 1248 | printf_filtered (("\n\032\032query\n")); |
cbdeadca JJ |
1249 | |
1250 | wrap_here (""); | |
1251 | gdb_flush (gdb_stdout); | |
1252 | ||
1253 | answer = fgetc (stdin); | |
8626589c JB |
1254 | |
1255 | /* We expect fgetc to block until a character is read. But | |
1256 | this may not be the case if the terminal was opened with | |
1257 | the NONBLOCK flag. In that case, if there is nothing to | |
1258 | read on stdin, fgetc returns EOF, but also sets the error | |
1259 | condition flag on stdin and errno to EAGAIN. With a true | |
1260 | EOF, stdin's error condition flag is not set. | |
1261 | ||
1262 | A situation where this behavior was observed is a pseudo | |
1263 | terminal on AIX. */ | |
1264 | while (answer == EOF && ferror (stdin) && errno == EAGAIN) | |
1265 | { | |
1266 | /* Not a real EOF. Wait a little while and try again until | |
1267 | we read something. */ | |
1268 | clearerr (stdin); | |
1269 | gdb_usleep (10000); | |
1270 | answer = fgetc (stdin); | |
1271 | } | |
1272 | ||
cbdeadca JJ |
1273 | clearerr (stdin); /* in case of C-d */ |
1274 | if (answer == EOF) /* C-d */ | |
1275 | { | |
fa3fd85b | 1276 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
1277 | retval = def_value; |
1278 | break; | |
1279 | } | |
581e13c1 | 1280 | /* Eat rest of input line, to EOF or newline. */ |
cbdeadca JJ |
1281 | if (answer != '\n') |
1282 | do | |
1283 | { | |
1284 | ans2 = fgetc (stdin); | |
1285 | clearerr (stdin); | |
1286 | } | |
1287 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); | |
1288 | ||
1289 | if (answer >= 'a') | |
1290 | answer -= 040; | |
1291 | /* Check answer. For the non-default, the user must specify | |
1292 | the non-default explicitly. */ | |
1293 | if (answer == not_def_answer) | |
1294 | { | |
1295 | retval = !def_value; | |
1296 | break; | |
1297 | } | |
981c7f5a DJ |
1298 | /* Otherwise, if a default was specified, the user may either |
1299 | specify the required input or have it default by entering | |
1300 | nothing. */ | |
1301 | if (answer == def_answer | |
1302 | || (defchar != '\0' && | |
1303 | (answer == '\n' || answer == '\r' || answer == EOF))) | |
cbdeadca JJ |
1304 | { |
1305 | retval = def_value; | |
1306 | break; | |
1307 | } | |
1308 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 1309 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
1310 | y_string, n_string); |
1311 | } | |
1312 | ||
260c0b2a DE |
1313 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
1314 | gettimeofday (&prompt_ended, NULL); | |
1315 | timeval_sub (&prompt_delta, &prompt_ended, &prompt_started); | |
1316 | timeval_add (&prompt_for_continue_wait_time, | |
1317 | &prompt_for_continue_wait_time, &prompt_delta); | |
1318 | ||
981c7f5a | 1319 | xfree (question); |
cbdeadca | 1320 | if (annotation_level > 1) |
a3f17187 | 1321 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
1322 | return retval; |
1323 | } | |
1324 | \f | |
1325 | ||
1326 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1327 | answer is yes, or 0 if answer is defaulted. | |
1328 | Takes three args which are given to printf to print the question. | |
1329 | The first, a control string, should end in "? ". | |
1330 | It should not say how to answer, because we do that. */ | |
1331 | ||
1332 | int | |
1333 | nquery (const char *ctlstr, ...) | |
1334 | { | |
1335 | va_list args; | |
899500d6 | 1336 | int ret; |
cbdeadca JJ |
1337 | |
1338 | va_start (args, ctlstr); | |
899500d6 | 1339 | ret = defaulted_query (ctlstr, 'n', args); |
cbdeadca | 1340 | va_end (args); |
899500d6 | 1341 | return ret; |
cbdeadca JJ |
1342 | } |
1343 | ||
1344 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1345 | answer is yes, or 1 if answer is defaulted. | |
1346 | Takes three args which are given to printf to print the question. | |
1347 | The first, a control string, should end in "? ". | |
1348 | It should not say how to answer, because we do that. */ | |
1349 | ||
1350 | int | |
1351 | yquery (const char *ctlstr, ...) | |
1352 | { | |
1353 | va_list args; | |
899500d6 | 1354 | int ret; |
cbdeadca JJ |
1355 | |
1356 | va_start (args, ctlstr); | |
899500d6 | 1357 | ret = defaulted_query (ctlstr, 'y', args); |
cbdeadca | 1358 | va_end (args); |
899500d6 | 1359 | return ret; |
cbdeadca JJ |
1360 | } |
1361 | ||
981c7f5a DJ |
1362 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
1363 | Takes three args which are given to printf to print the question. | |
1364 | The first, a control string, should end in "? ". | |
1365 | It should not say how to answer, because we do that. */ | |
1366 | ||
1367 | int | |
1368 | query (const char *ctlstr, ...) | |
1369 | { | |
1370 | va_list args; | |
899500d6 | 1371 | int ret; |
981c7f5a DJ |
1372 | |
1373 | va_start (args, ctlstr); | |
899500d6 | 1374 | ret = defaulted_query (ctlstr, '\0', args); |
981c7f5a | 1375 | va_end (args); |
899500d6 | 1376 | return ret; |
981c7f5a DJ |
1377 | } |
1378 | ||
6c7a06a3 TT |
1379 | /* A helper for parse_escape that converts a host character to a |
1380 | target character. C is the host character. If conversion is | |
1381 | possible, then the target character is stored in *TARGET_C and the | |
1382 | function returns 1. Otherwise, the function returns 0. */ | |
1383 | ||
1384 | static int | |
f870a310 | 1385 | host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c) |
234b45d4 | 1386 | { |
6c7a06a3 TT |
1387 | struct obstack host_data; |
1388 | char the_char = c; | |
1389 | struct cleanup *cleanups; | |
1390 | int result = 0; | |
234b45d4 | 1391 | |
6c7a06a3 TT |
1392 | obstack_init (&host_data); |
1393 | cleanups = make_cleanup_obstack_free (&host_data); | |
234b45d4 | 1394 | |
f870a310 | 1395 | convert_between_encodings (target_charset (gdbarch), host_charset (), |
ac91cd70 PA |
1396 | (gdb_byte *) &the_char, 1, 1, |
1397 | &host_data, translit_none); | |
6c7a06a3 TT |
1398 | |
1399 | if (obstack_object_size (&host_data) == 1) | |
1400 | { | |
1401 | result = 1; | |
1402 | *target_c = *(char *) obstack_base (&host_data); | |
1403 | } | |
1404 | ||
1405 | do_cleanups (cleanups); | |
1406 | return result; | |
234b45d4 KB |
1407 | } |
1408 | ||
c906108c SS |
1409 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1410 | containing a pointer to the string to parse. That pointer | |
1411 | should point to the character after the \. That pointer | |
1412 | is updated past the characters we use. The value of the | |
1413 | escape sequence is returned. | |
1414 | ||
1415 | A negative value means the sequence \ newline was seen, | |
1416 | which is supposed to be equivalent to nothing at all. | |
1417 | ||
1418 | If \ is followed by a null character, we return a negative | |
1419 | value and leave the string pointer pointing at the null character. | |
1420 | ||
1421 | If \ is followed by 000, we return 0 and leave the string pointer | |
1422 | after the zeros. A value of 0 does not mean end of string. */ | |
1423 | ||
1424 | int | |
f870a310 | 1425 | parse_escape (struct gdbarch *gdbarch, char **string_ptr) |
c906108c | 1426 | { |
581e13c1 | 1427 | int target_char = -2; /* Initialize to avoid GCC warnings. */ |
52f0bd74 | 1428 | int c = *(*string_ptr)++; |
e0627e85 | 1429 | |
6c7a06a3 TT |
1430 | switch (c) |
1431 | { | |
8731e58e AC |
1432 | case '\n': |
1433 | return -2; | |
1434 | case 0: | |
1435 | (*string_ptr)--; | |
1436 | return 0; | |
8731e58e AC |
1437 | |
1438 | case '0': | |
1439 | case '1': | |
1440 | case '2': | |
1441 | case '3': | |
1442 | case '4': | |
1443 | case '5': | |
1444 | case '6': | |
1445 | case '7': | |
1446 | { | |
6c7a06a3 | 1447 | int i = host_hex_value (c); |
aa1ee363 | 1448 | int count = 0; |
8731e58e AC |
1449 | while (++count < 3) |
1450 | { | |
5cb316ef | 1451 | c = (**string_ptr); |
6c7a06a3 | 1452 | if (isdigit (c) && c != '8' && c != '9') |
8731e58e | 1453 | { |
5cb316ef | 1454 | (*string_ptr)++; |
8731e58e | 1455 | i *= 8; |
6c7a06a3 | 1456 | i += host_hex_value (c); |
8731e58e AC |
1457 | } |
1458 | else | |
1459 | { | |
8731e58e AC |
1460 | break; |
1461 | } | |
1462 | } | |
1463 | return i; | |
1464 | } | |
6c7a06a3 TT |
1465 | |
1466 | case 'a': | |
1467 | c = '\a'; | |
1468 | break; | |
1469 | case 'b': | |
1470 | c = '\b'; | |
1471 | break; | |
1472 | case 'f': | |
1473 | c = '\f'; | |
1474 | break; | |
1475 | case 'n': | |
1476 | c = '\n'; | |
1477 | break; | |
1478 | case 'r': | |
1479 | c = '\r'; | |
1480 | break; | |
1481 | case 't': | |
1482 | c = '\t'; | |
1483 | break; | |
1484 | case 'v': | |
1485 | c = '\v'; | |
1486 | break; | |
1487 | ||
1488 | default: | |
1489 | break; | |
1490 | } | |
1491 | ||
f870a310 | 1492 | if (!host_char_to_target (gdbarch, c, &target_char)) |
3351ea09 JB |
1493 | error (_("The escape sequence `\\%c' is equivalent to plain `%c'," |
1494 | " which has no equivalent\nin the `%s' character set."), | |
905b671b | 1495 | c, c, target_charset (gdbarch)); |
6c7a06a3 | 1496 | return target_char; |
c906108c SS |
1497 | } |
1498 | \f | |
1499 | /* Print the character C on STREAM as part of the contents of a literal | |
1500 | string whose delimiter is QUOTER. Note that this routine should only | |
1501 | be call for printing things which are independent of the language | |
581e13c1 | 1502 | of the program being debugged. */ |
c906108c | 1503 | |
43e526b9 | 1504 | static void |
74f832da | 1505 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
bee0189a DJ |
1506 | void (*do_fprintf) (struct ui_file *, const char *, ...) |
1507 | ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter) | |
c906108c | 1508 | { |
c906108c SS |
1509 | c &= 0xFF; /* Avoid sign bit follies */ |
1510 | ||
c5aa993b JM |
1511 | if (c < 0x20 || /* Low control chars */ |
1512 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1513 | (sevenbit_strings && c >= 0x80)) | |
1514 | { /* high order bit set */ | |
1515 | switch (c) | |
1516 | { | |
1517 | case '\n': | |
43e526b9 | 1518 | do_fputs ("\\n", stream); |
c5aa993b JM |
1519 | break; |
1520 | case '\b': | |
43e526b9 | 1521 | do_fputs ("\\b", stream); |
c5aa993b JM |
1522 | break; |
1523 | case '\t': | |
43e526b9 | 1524 | do_fputs ("\\t", stream); |
c5aa993b JM |
1525 | break; |
1526 | case '\f': | |
43e526b9 | 1527 | do_fputs ("\\f", stream); |
c5aa993b JM |
1528 | break; |
1529 | case '\r': | |
43e526b9 | 1530 | do_fputs ("\\r", stream); |
c5aa993b JM |
1531 | break; |
1532 | case '\033': | |
43e526b9 | 1533 | do_fputs ("\\e", stream); |
c5aa993b JM |
1534 | break; |
1535 | case '\007': | |
43e526b9 | 1536 | do_fputs ("\\a", stream); |
c5aa993b JM |
1537 | break; |
1538 | default: | |
43e526b9 | 1539 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1540 | break; |
1541 | } | |
1542 | } | |
1543 | else | |
1544 | { | |
1545 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1546 | do_fputs ("\\", stream); |
1547 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1548 | } |
c906108c | 1549 | } |
43e526b9 JM |
1550 | |
1551 | /* Print the character C on STREAM as part of the contents of a | |
1552 | literal string whose delimiter is QUOTER. Note that these routines | |
1553 | should only be call for printing things which are independent of | |
581e13c1 | 1554 | the language of the program being debugged. */ |
43e526b9 JM |
1555 | |
1556 | void | |
fba45db2 | 1557 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1558 | { |
1559 | while (*str) | |
1560 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1561 | } | |
1562 | ||
1563 | void | |
fba45db2 | 1564 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1565 | { |
1566 | while (*str) | |
1567 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1568 | } | |
1569 | ||
0876f84a DJ |
1570 | void |
1571 | fputstrn_filtered (const char *str, int n, int quoter, | |
1572 | struct ui_file *stream) | |
1573 | { | |
1574 | int i; | |
e0627e85 | 1575 | |
0876f84a DJ |
1576 | for (i = 0; i < n; i++) |
1577 | printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter); | |
1578 | } | |
1579 | ||
43e526b9 | 1580 | void |
8731e58e AC |
1581 | fputstrn_unfiltered (const char *str, int n, int quoter, |
1582 | struct ui_file *stream) | |
43e526b9 JM |
1583 | { |
1584 | int i; | |
5d502164 | 1585 | |
43e526b9 JM |
1586 | for (i = 0; i < n; i++) |
1587 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1588 | } | |
c906108c | 1589 | \f |
c5aa993b | 1590 | |
c906108c SS |
1591 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1592 | static unsigned int lines_per_page; | |
920d2a44 AC |
1593 | static void |
1594 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1595 | struct cmd_list_element *c, const char *value) | |
1596 | { | |
3e43a32a MS |
1597 | fprintf_filtered (file, |
1598 | _("Number of lines gdb thinks are in a page is %s.\n"), | |
920d2a44 AC |
1599 | value); |
1600 | } | |
eb0d3137 | 1601 | |
cbfbd72a | 1602 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1603 | static unsigned int chars_per_line; |
920d2a44 AC |
1604 | static void |
1605 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1606 | struct cmd_list_element *c, const char *value) | |
1607 | { | |
3e43a32a MS |
1608 | fprintf_filtered (file, |
1609 | _("Number of characters gdb thinks " | |
1610 | "are in a line is %s.\n"), | |
920d2a44 AC |
1611 | value); |
1612 | } | |
eb0d3137 | 1613 | |
c906108c SS |
1614 | /* Current count of lines printed on this page, chars on this line. */ |
1615 | static unsigned int lines_printed, chars_printed; | |
1616 | ||
1617 | /* Buffer and start column of buffered text, for doing smarter word- | |
1618 | wrapping. When someone calls wrap_here(), we start buffering output | |
1619 | that comes through fputs_filtered(). If we see a newline, we just | |
1620 | spit it out and forget about the wrap_here(). If we see another | |
1621 | wrap_here(), we spit it out and remember the newer one. If we see | |
1622 | the end of the line, we spit out a newline, the indent, and then | |
1623 | the buffered output. */ | |
1624 | ||
1625 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1626 | are waiting to be output (they have already been counted in chars_printed). | |
1627 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1628 | static char *wrap_buffer; | |
1629 | ||
1630 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1631 | static char *wrap_pointer; | |
1632 | ||
1633 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1634 | is non-zero. */ | |
1635 | static char *wrap_indent; | |
1636 | ||
1637 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1638 | is not in effect. */ | |
1639 | static int wrap_column; | |
c906108c | 1640 | \f |
c5aa993b | 1641 | |
eb0d3137 MK |
1642 | /* Inialize the number of lines per page and chars per line. */ |
1643 | ||
c906108c | 1644 | void |
fba45db2 | 1645 | init_page_info (void) |
c906108c | 1646 | { |
5da1313b JK |
1647 | if (batch_flag) |
1648 | { | |
1649 | lines_per_page = UINT_MAX; | |
1650 | chars_per_line = UINT_MAX; | |
1651 | } | |
1652 | else | |
c906108c | 1653 | #if defined(TUI) |
5ecb1806 | 1654 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1655 | #endif |
1656 | { | |
eb0d3137 | 1657 | int rows, cols; |
c906108c | 1658 | |
ec145965 EZ |
1659 | #if defined(__GO32__) |
1660 | rows = ScreenRows (); | |
1661 | cols = ScreenCols (); | |
1662 | lines_per_page = rows; | |
1663 | chars_per_line = cols; | |
1664 | #else | |
eb0d3137 MK |
1665 | /* Make sure Readline has initialized its terminal settings. */ |
1666 | rl_reset_terminal (NULL); | |
c906108c | 1667 | |
eb0d3137 MK |
1668 | /* Get the screen size from Readline. */ |
1669 | rl_get_screen_size (&rows, &cols); | |
1670 | lines_per_page = rows; | |
1671 | chars_per_line = cols; | |
c906108c | 1672 | |
eb0d3137 MK |
1673 | /* Readline should have fetched the termcap entry for us. */ |
1674 | if (tgetnum ("li") < 0 || getenv ("EMACS")) | |
1675 | { | |
1676 | /* The number of lines per page is not mentioned in the | |
1677 | terminal description. This probably means that paging is | |
1678 | not useful (e.g. emacs shell window), so disable paging. */ | |
1679 | lines_per_page = UINT_MAX; | |
1680 | } | |
c906108c | 1681 | |
c906108c | 1682 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1683 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1684 | lines_per_page = UINT_MAX; |
eb0d3137 | 1685 | #endif |
ec145965 | 1686 | } |
eb0d3137 MK |
1687 | |
1688 | set_screen_size (); | |
c5aa993b | 1689 | set_width (); |
c906108c SS |
1690 | } |
1691 | ||
5da1313b JK |
1692 | /* Helper for make_cleanup_restore_page_info. */ |
1693 | ||
1694 | static void | |
1695 | do_restore_page_info_cleanup (void *arg) | |
1696 | { | |
1697 | set_screen_size (); | |
1698 | set_width (); | |
1699 | } | |
1700 | ||
1701 | /* Provide cleanup for restoring the terminal size. */ | |
1702 | ||
1703 | struct cleanup * | |
1704 | make_cleanup_restore_page_info (void) | |
1705 | { | |
1706 | struct cleanup *back_to; | |
1707 | ||
1708 | back_to = make_cleanup (do_restore_page_info_cleanup, NULL); | |
1709 | make_cleanup_restore_uinteger (&lines_per_page); | |
1710 | make_cleanup_restore_uinteger (&chars_per_line); | |
1711 | ||
1712 | return back_to; | |
1713 | } | |
1714 | ||
1715 | /* Temporarily set BATCH_FLAG and the associated unlimited terminal size. | |
1716 | Provide cleanup for restoring the original state. */ | |
1717 | ||
1718 | struct cleanup * | |
1719 | set_batch_flag_and_make_cleanup_restore_page_info (void) | |
1720 | { | |
1721 | struct cleanup *back_to = make_cleanup_restore_page_info (); | |
1722 | ||
1723 | make_cleanup_restore_integer (&batch_flag); | |
1724 | batch_flag = 1; | |
1725 | init_page_info (); | |
1726 | ||
1727 | return back_to; | |
1728 | } | |
1729 | ||
eb0d3137 MK |
1730 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1731 | ||
1732 | static void | |
1733 | set_screen_size (void) | |
1734 | { | |
1735 | int rows = lines_per_page; | |
1736 | int cols = chars_per_line; | |
1737 | ||
1738 | if (rows <= 0) | |
1739 | rows = INT_MAX; | |
1740 | ||
1741 | if (cols <= 0) | |
0caa462c | 1742 | cols = INT_MAX; |
eb0d3137 MK |
1743 | |
1744 | /* Update Readline's idea of the terminal size. */ | |
1745 | rl_set_screen_size (rows, cols); | |
1746 | } | |
1747 | ||
1748 | /* Reinitialize WRAP_BUFFER according to the current value of | |
1749 | CHARS_PER_LINE. */ | |
1750 | ||
c906108c | 1751 | static void |
fba45db2 | 1752 | set_width (void) |
c906108c SS |
1753 | { |
1754 | if (chars_per_line == 0) | |
c5aa993b | 1755 | init_page_info (); |
c906108c SS |
1756 | |
1757 | if (!wrap_buffer) | |
1758 | { | |
1759 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1760 | wrap_buffer[0] = '\0'; | |
1761 | } | |
1762 | else | |
1763 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 1764 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
1765 | } |
1766 | ||
c5aa993b | 1767 | static void |
fba45db2 | 1768 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1769 | { |
eb0d3137 | 1770 | set_screen_size (); |
c906108c SS |
1771 | set_width (); |
1772 | } | |
1773 | ||
eb0d3137 MK |
1774 | static void |
1775 | set_height_command (char *args, int from_tty, struct cmd_list_element *c) | |
1776 | { | |
1777 | set_screen_size (); | |
1778 | } | |
1779 | ||
c906108c SS |
1780 | /* Wait, so the user can read what's on the screen. Prompt the user |
1781 | to continue by pressing RETURN. */ | |
1782 | ||
1783 | static void | |
fba45db2 | 1784 | prompt_for_continue (void) |
c906108c SS |
1785 | { |
1786 | char *ignore; | |
1787 | char cont_prompt[120]; | |
260c0b2a DE |
1788 | /* Used to add duration we waited for user to respond to |
1789 | prompt_for_continue_wait_time. */ | |
1790 | struct timeval prompt_started, prompt_ended, prompt_delta; | |
1791 | ||
1792 | gettimeofday (&prompt_started, NULL); | |
c906108c SS |
1793 | |
1794 | if (annotation_level > 1) | |
a3f17187 | 1795 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
1796 | |
1797 | strcpy (cont_prompt, | |
1798 | "---Type <return> to continue, or q <return> to quit---"); | |
1799 | if (annotation_level > 1) | |
1800 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1801 | ||
1802 | /* We must do this *before* we call gdb_readline, else it will eventually | |
1803 | call us -- thinking that we're trying to print beyond the end of the | |
1804 | screen. */ | |
1805 | reinitialize_more_filter (); | |
1806 | ||
1807 | immediate_quit++; | |
522002f9 | 1808 | QUIT; |
c906108c SS |
1809 | /* On a real operating system, the user can quit with SIGINT. |
1810 | But not on GO32. | |
1811 | ||
1812 | 'q' is provided on all systems so users don't have to change habits | |
1813 | from system to system, and because telling them what to do in | |
1814 | the prompt is more user-friendly than expecting them to think of | |
1815 | SIGINT. */ | |
1816 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
1817 | whereas control-C to gdb_readline will cause the user to get dumped | |
1818 | out to DOS. */ | |
b4f5539f | 1819 | ignore = gdb_readline_wrapper (cont_prompt); |
c906108c | 1820 | |
260c0b2a DE |
1821 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
1822 | gettimeofday (&prompt_ended, NULL); | |
1823 | timeval_sub (&prompt_delta, &prompt_ended, &prompt_started); | |
1824 | timeval_add (&prompt_for_continue_wait_time, | |
1825 | &prompt_for_continue_wait_time, &prompt_delta); | |
1826 | ||
c906108c | 1827 | if (annotation_level > 1) |
a3f17187 | 1828 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c SS |
1829 | |
1830 | if (ignore) | |
1831 | { | |
1832 | char *p = ignore; | |
5d502164 | 1833 | |
c906108c SS |
1834 | while (*p == ' ' || *p == '\t') |
1835 | ++p; | |
1836 | if (p[0] == 'q') | |
522002f9 | 1837 | quit (); |
b8c9b27d | 1838 | xfree (ignore); |
c906108c SS |
1839 | } |
1840 | immediate_quit--; | |
1841 | ||
1842 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1843 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1844 | reinitialize_more_filter (); | |
1845 | ||
581e13c1 | 1846 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ |
c906108c SS |
1847 | } |
1848 | ||
bd712aed DE |
1849 | /* Initalize timer to keep track of how long we waited for the user. */ |
1850 | ||
1851 | void | |
1852 | reset_prompt_for_continue_wait_time (void) | |
1853 | { | |
1854 | static const struct timeval zero_timeval = { 0 }; | |
1855 | ||
1856 | prompt_for_continue_wait_time = zero_timeval; | |
1857 | } | |
1858 | ||
1859 | /* Fetch the cumulative time spent in prompt_for_continue. */ | |
1860 | ||
1861 | struct timeval | |
1862 | get_prompt_for_continue_wait_time (void) | |
1863 | { | |
1864 | return prompt_for_continue_wait_time; | |
1865 | } | |
1866 | ||
c906108c SS |
1867 | /* Reinitialize filter; ie. tell it to reset to original values. */ |
1868 | ||
1869 | void | |
fba45db2 | 1870 | reinitialize_more_filter (void) |
c906108c SS |
1871 | { |
1872 | lines_printed = 0; | |
1873 | chars_printed = 0; | |
1874 | } | |
1875 | ||
1876 | /* Indicate that if the next sequence of characters overflows the line, | |
581e13c1 | 1877 | a newline should be inserted here rather than when it hits the end. |
c906108c SS |
1878 | If INDENT is non-null, it is a string to be printed to indent the |
1879 | wrapped part on the next line. INDENT must remain accessible until | |
1880 | the next call to wrap_here() or until a newline is printed through | |
1881 | fputs_filtered(). | |
1882 | ||
1883 | If the line is already overfull, we immediately print a newline and | |
1884 | the indentation, and disable further wrapping. | |
1885 | ||
1886 | If we don't know the width of lines, but we know the page height, | |
1887 | we must not wrap words, but should still keep track of newlines | |
1888 | that were explicitly printed. | |
1889 | ||
1890 | INDENT should not contain tabs, as that will mess up the char count | |
1891 | on the next line. FIXME. | |
1892 | ||
1893 | This routine is guaranteed to force out any output which has been | |
1894 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1895 | used to force out output from the wrap_buffer. */ | |
1896 | ||
1897 | void | |
fba45db2 | 1898 | wrap_here (char *indent) |
c906108c | 1899 | { |
581e13c1 | 1900 | /* This should have been allocated, but be paranoid anyway. */ |
c906108c | 1901 | if (!wrap_buffer) |
3e43a32a MS |
1902 | internal_error (__FILE__, __LINE__, |
1903 | _("failed internal consistency check")); | |
c906108c SS |
1904 | |
1905 | if (wrap_buffer[0]) | |
1906 | { | |
1907 | *wrap_pointer = '\0'; | |
1908 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1909 | } | |
1910 | wrap_pointer = wrap_buffer; | |
1911 | wrap_buffer[0] = '\0'; | |
3e43a32a | 1912 | if (chars_per_line == UINT_MAX) /* No line overflow checking. */ |
c906108c SS |
1913 | { |
1914 | wrap_column = 0; | |
1915 | } | |
1916 | else if (chars_printed >= chars_per_line) | |
1917 | { | |
1918 | puts_filtered ("\n"); | |
1919 | if (indent != NULL) | |
1920 | puts_filtered (indent); | |
1921 | wrap_column = 0; | |
1922 | } | |
1923 | else | |
1924 | { | |
1925 | wrap_column = chars_printed; | |
1926 | if (indent == NULL) | |
1927 | wrap_indent = ""; | |
1928 | else | |
1929 | wrap_indent = indent; | |
1930 | } | |
1931 | } | |
1932 | ||
4a351cef | 1933 | /* Print input string to gdb_stdout, filtered, with wrap, |
581e13c1 | 1934 | arranging strings in columns of n chars. String can be |
4a351cef AF |
1935 | right or left justified in the column. Never prints |
1936 | trailing spaces. String should never be longer than | |
1937 | width. FIXME: this could be useful for the EXAMINE | |
581e13c1 | 1938 | command, which currently doesn't tabulate very well. */ |
4a351cef AF |
1939 | |
1940 | void | |
1941 | puts_filtered_tabular (char *string, int width, int right) | |
1942 | { | |
1943 | int spaces = 0; | |
1944 | int stringlen; | |
1945 | char *spacebuf; | |
1946 | ||
1947 | gdb_assert (chars_per_line > 0); | |
1948 | if (chars_per_line == UINT_MAX) | |
1949 | { | |
1950 | fputs_filtered (string, gdb_stdout); | |
1951 | fputs_filtered ("\n", gdb_stdout); | |
1952 | return; | |
1953 | } | |
1954 | ||
1955 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
1956 | fputs_filtered ("\n", gdb_stdout); | |
1957 | ||
1958 | if (width >= chars_per_line) | |
1959 | width = chars_per_line - 1; | |
1960 | ||
1961 | stringlen = strlen (string); | |
1962 | ||
1963 | if (chars_printed > 0) | |
1964 | spaces = width - (chars_printed - 1) % width - 1; | |
1965 | if (right) | |
1966 | spaces += width - stringlen; | |
1967 | ||
1968 | spacebuf = alloca (spaces + 1); | |
1969 | spacebuf[spaces] = '\0'; | |
1970 | while (spaces--) | |
1971 | spacebuf[spaces] = ' '; | |
1972 | ||
1973 | fputs_filtered (spacebuf, gdb_stdout); | |
1974 | fputs_filtered (string, gdb_stdout); | |
1975 | } | |
1976 | ||
1977 | ||
c906108c | 1978 | /* Ensure that whatever gets printed next, using the filtered output |
581e13c1 | 1979 | commands, starts at the beginning of the line. I.e. if there is |
c906108c | 1980 | any pending output for the current line, flush it and start a new |
581e13c1 | 1981 | line. Otherwise do nothing. */ |
c906108c SS |
1982 | |
1983 | void | |
fba45db2 | 1984 | begin_line (void) |
c906108c SS |
1985 | { |
1986 | if (chars_printed > 0) | |
1987 | { | |
1988 | puts_filtered ("\n"); | |
1989 | } | |
1990 | } | |
1991 | ||
ac9a91a7 | 1992 | |
c906108c SS |
1993 | /* Like fputs but if FILTER is true, pause after every screenful. |
1994 | ||
1995 | Regardless of FILTER can wrap at points other than the final | |
1996 | character of a line. | |
1997 | ||
1998 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
1999 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
2000 | anything. | |
2001 | ||
2002 | Note that a longjmp to top level may occur in this routine (only if | |
2003 | FILTER is true) (since prompt_for_continue may do so) so this | |
2004 | routine should not be called when cleanups are not in place. */ | |
2005 | ||
2006 | static void | |
fba45db2 KB |
2007 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
2008 | int filter) | |
c906108c SS |
2009 | { |
2010 | const char *lineptr; | |
2011 | ||
2012 | if (linebuffer == 0) | |
2013 | return; | |
2014 | ||
2015 | /* Don't do any filtering if it is disabled. */ | |
390a8aca | 2016 | if (stream != gdb_stdout |
b2e7f004 JK |
2017 | || !pagination_enabled |
2018 | || batch_flag | |
390a8aca | 2019 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) |
58dadb1b | 2020 | || top_level_interpreter () == NULL |
390a8aca | 2021 | || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) |
c906108c SS |
2022 | { |
2023 | fputs_unfiltered (linebuffer, stream); | |
2024 | return; | |
2025 | } | |
2026 | ||
2027 | /* Go through and output each character. Show line extension | |
2028 | when this is necessary; prompt user for new page when this is | |
2029 | necessary. */ | |
c5aa993b | 2030 | |
c906108c SS |
2031 | lineptr = linebuffer; |
2032 | while (*lineptr) | |
2033 | { | |
2034 | /* Possible new page. */ | |
8731e58e | 2035 | if (filter && (lines_printed >= lines_per_page - 1)) |
c906108c SS |
2036 | prompt_for_continue (); |
2037 | ||
2038 | while (*lineptr && *lineptr != '\n') | |
2039 | { | |
2040 | /* Print a single line. */ | |
2041 | if (*lineptr == '\t') | |
2042 | { | |
2043 | if (wrap_column) | |
2044 | *wrap_pointer++ = '\t'; | |
2045 | else | |
2046 | fputc_unfiltered ('\t', stream); | |
2047 | /* Shifting right by 3 produces the number of tab stops | |
2048 | we have already passed, and then adding one and | |
c5aa993b | 2049 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
2050 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
2051 | lineptr++; | |
2052 | } | |
2053 | else | |
2054 | { | |
2055 | if (wrap_column) | |
2056 | *wrap_pointer++ = *lineptr; | |
2057 | else | |
c5aa993b | 2058 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
2059 | chars_printed++; |
2060 | lineptr++; | |
2061 | } | |
c5aa993b | 2062 | |
c906108c SS |
2063 | if (chars_printed >= chars_per_line) |
2064 | { | |
2065 | unsigned int save_chars = chars_printed; | |
2066 | ||
2067 | chars_printed = 0; | |
2068 | lines_printed++; | |
2069 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
2070 | if chars_per_line is right, we probably just overflowed |
2071 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
2072 | if (wrap_column) |
2073 | fputc_unfiltered ('\n', stream); | |
2074 | ||
2075 | /* Possible new page. */ | |
2076 | if (lines_printed >= lines_per_page - 1) | |
2077 | prompt_for_continue (); | |
2078 | ||
581e13c1 | 2079 | /* Now output indentation and wrapped string. */ |
c906108c SS |
2080 | if (wrap_column) |
2081 | { | |
2082 | fputs_unfiltered (wrap_indent, stream); | |
581e13c1 MS |
2083 | *wrap_pointer = '\0'; /* Null-terminate saved stuff, */ |
2084 | fputs_unfiltered (wrap_buffer, stream); /* and eject it. */ | |
c906108c SS |
2085 | /* FIXME, this strlen is what prevents wrap_indent from |
2086 | containing tabs. However, if we recurse to print it | |
2087 | and count its chars, we risk trouble if wrap_indent is | |
581e13c1 | 2088 | longer than (the user settable) chars_per_line. |
c906108c SS |
2089 | Note also that this can set chars_printed > chars_per_line |
2090 | if we are printing a long string. */ | |
2091 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 2092 | + (save_chars - wrap_column); |
c906108c SS |
2093 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
2094 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
2095 | wrap_column = 0; /* And disable fancy wrap */ |
2096 | } | |
c906108c SS |
2097 | } |
2098 | } | |
2099 | ||
2100 | if (*lineptr == '\n') | |
2101 | { | |
2102 | chars_printed = 0; | |
3e43a32a MS |
2103 | wrap_here ((char *) 0); /* Spit out chars, cancel |
2104 | further wraps. */ | |
c906108c SS |
2105 | lines_printed++; |
2106 | fputc_unfiltered ('\n', stream); | |
2107 | lineptr++; | |
2108 | } | |
2109 | } | |
2110 | } | |
2111 | ||
2112 | void | |
fba45db2 | 2113 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
2114 | { |
2115 | fputs_maybe_filtered (linebuffer, stream, 1); | |
2116 | } | |
2117 | ||
2118 | int | |
fba45db2 | 2119 | putchar_unfiltered (int c) |
c906108c | 2120 | { |
11cf8741 | 2121 | char buf = c; |
e0627e85 | 2122 | |
d9fcf2fb | 2123 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
2124 | return c; |
2125 | } | |
2126 | ||
d1f4cff8 AC |
2127 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
2128 | May return nonlocally. */ | |
2129 | ||
2130 | int | |
2131 | putchar_filtered (int c) | |
2132 | { | |
2133 | return fputc_filtered (c, gdb_stdout); | |
2134 | } | |
2135 | ||
c906108c | 2136 | int |
fba45db2 | 2137 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 2138 | { |
11cf8741 | 2139 | char buf = c; |
e0627e85 | 2140 | |
d9fcf2fb | 2141 | ui_file_write (stream, &buf, 1); |
c906108c SS |
2142 | return c; |
2143 | } | |
2144 | ||
2145 | int | |
fba45db2 | 2146 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
2147 | { |
2148 | char buf[2]; | |
2149 | ||
2150 | buf[0] = c; | |
2151 | buf[1] = 0; | |
2152 | fputs_filtered (buf, stream); | |
2153 | return c; | |
2154 | } | |
2155 | ||
2156 | /* puts_debug is like fputs_unfiltered, except it prints special | |
2157 | characters in printable fashion. */ | |
2158 | ||
2159 | void | |
fba45db2 | 2160 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
2161 | { |
2162 | int ch; | |
2163 | ||
2164 | /* Print prefix and suffix after each line. */ | |
2165 | static int new_line = 1; | |
2166 | static int return_p = 0; | |
2167 | static char *prev_prefix = ""; | |
2168 | static char *prev_suffix = ""; | |
2169 | ||
2170 | if (*string == '\n') | |
2171 | return_p = 0; | |
2172 | ||
2173 | /* If the prefix is changing, print the previous suffix, a new line, | |
2174 | and the new prefix. */ | |
c5aa993b | 2175 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2176 | { |
9846de1b JM |
2177 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2178 | fputs_unfiltered ("\n", gdb_stdlog); | |
2179 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2180 | } |
2181 | ||
2182 | /* Print prefix if we printed a newline during the previous call. */ | |
2183 | if (new_line) | |
2184 | { | |
2185 | new_line = 0; | |
9846de1b | 2186 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2187 | } |
2188 | ||
2189 | prev_prefix = prefix; | |
2190 | prev_suffix = suffix; | |
2191 | ||
2192 | /* Output characters in a printable format. */ | |
2193 | while ((ch = *string++) != '\0') | |
2194 | { | |
2195 | switch (ch) | |
c5aa993b | 2196 | { |
c906108c SS |
2197 | default: |
2198 | if (isprint (ch)) | |
9846de1b | 2199 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2200 | |
2201 | else | |
9846de1b | 2202 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2203 | break; |
2204 | ||
c5aa993b JM |
2205 | case '\\': |
2206 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2207 | break; | |
2208 | case '\b': | |
2209 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2210 | break; | |
2211 | case '\f': | |
2212 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2213 | break; | |
2214 | case '\n': | |
2215 | new_line = 1; | |
2216 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2217 | break; | |
2218 | case '\r': | |
2219 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2220 | break; | |
2221 | case '\t': | |
2222 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2223 | break; | |
2224 | case '\v': | |
2225 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2226 | break; | |
2227 | } | |
c906108c SS |
2228 | |
2229 | return_p = ch == '\r'; | |
2230 | } | |
2231 | ||
2232 | /* Print suffix if we printed a newline. */ | |
2233 | if (new_line) | |
2234 | { | |
9846de1b JM |
2235 | fputs_unfiltered (suffix, gdb_stdlog); |
2236 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2237 | } |
2238 | } | |
2239 | ||
2240 | ||
2241 | /* Print a variable number of ARGS using format FORMAT. If this | |
2242 | information is going to put the amount written (since the last call | |
2243 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2244 | call prompt_for_continue to get the users permision to continue. | |
2245 | ||
2246 | Unlike fprintf, this function does not return a value. | |
2247 | ||
2248 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2249 | fprintf (takes a stream to write on), and printf (the usual). | |
2250 | ||
2251 | Note also that a longjmp to top level may occur in this routine | |
2252 | (since prompt_for_continue may do so) so this routine should not be | |
2253 | called when cleanups are not in place. */ | |
2254 | ||
2255 | static void | |
fba45db2 KB |
2256 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2257 | va_list args, int filter) | |
c906108c SS |
2258 | { |
2259 | char *linebuffer; | |
2260 | struct cleanup *old_cleanups; | |
2261 | ||
e623b504 | 2262 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2263 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2264 | fputs_maybe_filtered (linebuffer, stream, filter); |
2265 | do_cleanups (old_cleanups); | |
2266 | } | |
2267 | ||
2268 | ||
2269 | void | |
fba45db2 | 2270 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2271 | { |
2272 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2273 | } | |
2274 | ||
2275 | void | |
fba45db2 | 2276 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2277 | { |
2278 | char *linebuffer; | |
2279 | struct cleanup *old_cleanups; | |
2280 | ||
e623b504 | 2281 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2282 | old_cleanups = make_cleanup (xfree, linebuffer); |
75feb17d DJ |
2283 | if (debug_timestamp && stream == gdb_stdlog) |
2284 | { | |
2285 | struct timeval tm; | |
2286 | char *timestamp; | |
6e5abd65 | 2287 | int len, need_nl; |
75feb17d DJ |
2288 | |
2289 | gettimeofday (&tm, NULL); | |
6e5abd65 PA |
2290 | |
2291 | len = strlen (linebuffer); | |
2292 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); | |
2293 | ||
2294 | timestamp = xstrprintf ("%ld:%ld %s%s", | |
2295 | (long) tm.tv_sec, (long) tm.tv_usec, | |
2296 | linebuffer, | |
2297 | need_nl ? "\n": ""); | |
75feb17d DJ |
2298 | make_cleanup (xfree, timestamp); |
2299 | fputs_unfiltered (timestamp, stream); | |
2300 | } | |
6e5abd65 PA |
2301 | else |
2302 | fputs_unfiltered (linebuffer, stream); | |
c906108c SS |
2303 | do_cleanups (old_cleanups); |
2304 | } | |
2305 | ||
2306 | void | |
fba45db2 | 2307 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2308 | { |
2309 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2310 | } | |
2311 | ||
2312 | void | |
fba45db2 | 2313 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2314 | { |
2315 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2316 | } | |
2317 | ||
c906108c | 2318 | void |
8731e58e | 2319 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2320 | { |
2321 | va_list args; | |
e0627e85 | 2322 | |
c906108c | 2323 | va_start (args, format); |
c906108c SS |
2324 | vfprintf_filtered (stream, format, args); |
2325 | va_end (args); | |
2326 | } | |
2327 | ||
c906108c | 2328 | void |
8731e58e | 2329 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2330 | { |
2331 | va_list args; | |
e0627e85 | 2332 | |
c906108c | 2333 | va_start (args, format); |
c906108c SS |
2334 | vfprintf_unfiltered (stream, format, args); |
2335 | va_end (args); | |
2336 | } | |
2337 | ||
2338 | /* Like fprintf_filtered, but prints its result indented. | |
2339 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2340 | ||
c906108c | 2341 | void |
8731e58e AC |
2342 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2343 | ...) | |
c906108c SS |
2344 | { |
2345 | va_list args; | |
e0627e85 | 2346 | |
c906108c | 2347 | va_start (args, format); |
c906108c SS |
2348 | print_spaces_filtered (spaces, stream); |
2349 | ||
2350 | vfprintf_filtered (stream, format, args); | |
2351 | va_end (args); | |
2352 | } | |
2353 | ||
2354 | ||
c906108c | 2355 | void |
8731e58e | 2356 | printf_filtered (const char *format, ...) |
c906108c SS |
2357 | { |
2358 | va_list args; | |
e0627e85 | 2359 | |
c906108c | 2360 | va_start (args, format); |
c906108c SS |
2361 | vfprintf_filtered (gdb_stdout, format, args); |
2362 | va_end (args); | |
2363 | } | |
2364 | ||
2365 | ||
c906108c | 2366 | void |
8731e58e | 2367 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2368 | { |
2369 | va_list args; | |
e0627e85 | 2370 | |
c906108c | 2371 | va_start (args, format); |
c906108c SS |
2372 | vfprintf_unfiltered (gdb_stdout, format, args); |
2373 | va_end (args); | |
2374 | } | |
2375 | ||
2376 | /* Like printf_filtered, but prints it's result indented. | |
2377 | Called as printfi_filtered (spaces, format, ...); */ | |
2378 | ||
c906108c | 2379 | void |
8731e58e | 2380 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2381 | { |
2382 | va_list args; | |
e0627e85 | 2383 | |
c906108c | 2384 | va_start (args, format); |
c906108c SS |
2385 | print_spaces_filtered (spaces, gdb_stdout); |
2386 | vfprintf_filtered (gdb_stdout, format, args); | |
2387 | va_end (args); | |
2388 | } | |
2389 | ||
2390 | /* Easy -- but watch out! | |
2391 | ||
2392 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2393 | This one doesn't, and had better not! */ | |
2394 | ||
2395 | void | |
fba45db2 | 2396 | puts_filtered (const char *string) |
c906108c SS |
2397 | { |
2398 | fputs_filtered (string, gdb_stdout); | |
2399 | } | |
2400 | ||
2401 | void | |
fba45db2 | 2402 | puts_unfiltered (const char *string) |
c906108c SS |
2403 | { |
2404 | fputs_unfiltered (string, gdb_stdout); | |
2405 | } | |
2406 | ||
2407 | /* Return a pointer to N spaces and a null. The pointer is good | |
2408 | until the next call to here. */ | |
2409 | char * | |
fba45db2 | 2410 | n_spaces (int n) |
c906108c | 2411 | { |
392a587b JM |
2412 | char *t; |
2413 | static char *spaces = 0; | |
2414 | static int max_spaces = -1; | |
c906108c SS |
2415 | |
2416 | if (n > max_spaces) | |
2417 | { | |
2418 | if (spaces) | |
b8c9b27d | 2419 | xfree (spaces); |
c5aa993b JM |
2420 | spaces = (char *) xmalloc (n + 1); |
2421 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2422 | *--t = ' '; |
2423 | spaces[n] = '\0'; | |
2424 | max_spaces = n; | |
2425 | } | |
2426 | ||
2427 | return spaces + max_spaces - n; | |
2428 | } | |
2429 | ||
2430 | /* Print N spaces. */ | |
2431 | void | |
fba45db2 | 2432 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2433 | { |
2434 | fputs_filtered (n_spaces (n), stream); | |
2435 | } | |
2436 | \f | |
4a351cef | 2437 | /* C++/ObjC demangler stuff. */ |
c906108c | 2438 | |
389e51db AC |
2439 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2440 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2441 | If the name is not mangled, or the language for the name is unknown, or | |
581e13c1 | 2442 | demangling is off, the name is printed in its "raw" form. */ |
c906108c SS |
2443 | |
2444 | void | |
0d5cff50 | 2445 | fprintf_symbol_filtered (struct ui_file *stream, const char *name, |
8731e58e | 2446 | enum language lang, int arg_mode) |
c906108c SS |
2447 | { |
2448 | char *demangled; | |
2449 | ||
2450 | if (name != NULL) | |
2451 | { | |
2452 | /* If user wants to see raw output, no problem. */ | |
2453 | if (!demangle) | |
2454 | { | |
2455 | fputs_filtered (name, stream); | |
2456 | } | |
2457 | else | |
2458 | { | |
9a3d7dfd | 2459 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2460 | fputs_filtered (demangled ? demangled : name, stream); |
2461 | if (demangled != NULL) | |
2462 | { | |
b8c9b27d | 2463 | xfree (demangled); |
c906108c SS |
2464 | } |
2465 | } | |
2466 | } | |
2467 | } | |
2468 | ||
2469 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2470 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2471 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2472 | |
c906108c SS |
2473 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2474 | This "feature" is useful when searching for matching C++ function names | |
2475 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
581e13c1 | 2476 | function). */ |
c906108c SS |
2477 | |
2478 | int | |
fba45db2 | 2479 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2480 | { |
2481 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2482 | { | |
2483 | while (isspace (*string1)) | |
2484 | { | |
2485 | string1++; | |
2486 | } | |
2487 | while (isspace (*string2)) | |
2488 | { | |
2489 | string2++; | |
2490 | } | |
559a7a62 JK |
2491 | if (case_sensitivity == case_sensitive_on && *string1 != *string2) |
2492 | break; | |
2493 | if (case_sensitivity == case_sensitive_off | |
2494 | && (tolower ((unsigned char) *string1) | |
2495 | != tolower ((unsigned char) *string2))) | |
2496 | break; | |
c906108c SS |
2497 | if (*string1 != '\0') |
2498 | { | |
2499 | string1++; | |
2500 | string2++; | |
2501 | } | |
2502 | } | |
2503 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2504 | } | |
2de7ced7 | 2505 | |
0fe19209 DC |
2506 | /* This is like strcmp except that it ignores whitespace and treats |
2507 | '(' as the first non-NULL character in terms of ordering. Like | |
2508 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2509 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2510 | according to that ordering. | |
2511 | ||
2512 | If a list is sorted according to this function and if you want to | |
2513 | find names in the list that match some fixed NAME according to | |
2514 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2515 | where this function would put NAME. | |
2516 | ||
559a7a62 JK |
2517 | This function must be neutral to the CASE_SENSITIVITY setting as the user |
2518 | may choose it during later lookup. Therefore this function always sorts | |
2519 | primarily case-insensitively and secondarily case-sensitively. | |
2520 | ||
0fe19209 DC |
2521 | Here are some examples of why using strcmp to sort is a bad idea: |
2522 | ||
2523 | Whitespace example: | |
2524 | ||
2525 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2526 | we try to do a search for "foo<char*>", strcmp will locate this | |
2527 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2528 | will start looking at strings beginning with "goo", and will never | |
2529 | see the correct match of "foo<char *>". | |
2530 | ||
2531 | Parenthesis example: | |
2532 | ||
2533 | In practice, this is less like to be an issue, but I'll give it a | |
2534 | shot. Let's assume that '$' is a legitimate character to occur in | |
2535 | symbols. (Which may well even be the case on some systems.) Then | |
2536 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2537 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2538 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2539 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2540 | "foo") is false, so it won't proceed to the actual match of | |
2541 | "foo(int)" with "foo". */ | |
2542 | ||
2543 | int | |
2544 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2545 | { | |
559a7a62 JK |
2546 | const char *saved_string1 = string1, *saved_string2 = string2; |
2547 | enum case_sensitivity case_pass = case_sensitive_off; | |
2548 | ||
2549 | for (;;) | |
0fe19209 | 2550 | { |
b11b1f88 JK |
2551 | /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'. |
2552 | Provide stub characters if we are already at the end of one of the | |
2553 | strings. */ | |
2554 | char c1 = 'X', c2 = 'X'; | |
2555 | ||
2556 | while (*string1 != '\0' && *string2 != '\0') | |
0fe19209 | 2557 | { |
b11b1f88 JK |
2558 | while (isspace (*string1)) |
2559 | string1++; | |
2560 | while (isspace (*string2)) | |
2561 | string2++; | |
2562 | ||
559a7a62 JK |
2563 | switch (case_pass) |
2564 | { | |
2565 | case case_sensitive_off: | |
2566 | c1 = tolower ((unsigned char) *string1); | |
2567 | c2 = tolower ((unsigned char) *string2); | |
2568 | break; | |
2569 | case case_sensitive_on: | |
b11b1f88 JK |
2570 | c1 = *string1; |
2571 | c2 = *string2; | |
559a7a62 JK |
2572 | break; |
2573 | } | |
b11b1f88 JK |
2574 | if (c1 != c2) |
2575 | break; | |
2576 | ||
2577 | if (*string1 != '\0') | |
2578 | { | |
2579 | string1++; | |
2580 | string2++; | |
2581 | } | |
0fe19209 | 2582 | } |
b11b1f88 JK |
2583 | |
2584 | switch (*string1) | |
0fe19209 | 2585 | { |
b11b1f88 JK |
2586 | /* Characters are non-equal unless they're both '\0'; we want to |
2587 | make sure we get the comparison right according to our | |
2588 | comparison in the cases where one of them is '\0' or '('. */ | |
2589 | case '\0': | |
2590 | if (*string2 == '\0') | |
559a7a62 | 2591 | break; |
b11b1f88 JK |
2592 | else |
2593 | return -1; | |
2594 | case '(': | |
2595 | if (*string2 == '\0') | |
2596 | return 1; | |
2597 | else | |
2598 | return -1; | |
2599 | default: | |
2600 | if (*string2 == '\0' || *string2 == '(') | |
2601 | return 1; | |
559a7a62 JK |
2602 | else if (c1 > c2) |
2603 | return 1; | |
2604 | else if (c1 < c2) | |
2605 | return -1; | |
2606 | /* PASSTHRU */ | |
0fe19209 | 2607 | } |
559a7a62 JK |
2608 | |
2609 | if (case_pass == case_sensitive_on) | |
2610 | return 0; | |
2611 | ||
2612 | /* Otherwise the strings were equal in case insensitive way, make | |
2613 | a more fine grained comparison in a case sensitive way. */ | |
2614 | ||
2615 | case_pass = case_sensitive_on; | |
2616 | string1 = saved_string1; | |
2617 | string2 = saved_string2; | |
0fe19209 | 2618 | } |
0fe19209 DC |
2619 | } |
2620 | ||
2de7ced7 DJ |
2621 | /* A simple comparison function with opposite semantics to strcmp. */ |
2622 | ||
2623 | int | |
2624 | streq (const char *lhs, const char *rhs) | |
2625 | { | |
2626 | return !strcmp (lhs, rhs); | |
2627 | } | |
c906108c | 2628 | \f |
c5aa993b | 2629 | |
c906108c | 2630 | /* |
c5aa993b JM |
2631 | ** subset_compare() |
2632 | ** Answer whether string_to_compare is a full or partial match to | |
2633 | ** template_string. The partial match must be in sequence starting | |
2634 | ** at index 0. | |
2635 | */ | |
c906108c | 2636 | int |
fba45db2 | 2637 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
2638 | { |
2639 | int match; | |
e0627e85 | 2640 | |
8731e58e AC |
2641 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
2642 | && strlen (string_to_compare) <= strlen (template_string)) | |
2643 | match = | |
2644 | (strncmp | |
2645 | (template_string, string_to_compare, strlen (string_to_compare)) == 0); | |
7a292a7a SS |
2646 | else |
2647 | match = 0; | |
2648 | return match; | |
2649 | } | |
c906108c | 2650 | |
7a292a7a | 2651 | static void |
fba45db2 | 2652 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
2653 | { |
2654 | pagination_enabled = 1; | |
2655 | } | |
2656 | ||
7a292a7a | 2657 | static void |
fba45db2 | 2658 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
2659 | { |
2660 | pagination_enabled = 0; | |
2661 | } | |
75feb17d DJ |
2662 | |
2663 | static void | |
2664 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
2665 | struct cmd_list_element *c, const char *value) | |
2666 | { | |
3e43a32a MS |
2667 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), |
2668 | value); | |
75feb17d | 2669 | } |
c906108c | 2670 | \f |
c5aa993b | 2671 | |
c906108c | 2672 | void |
fba45db2 | 2673 | initialize_utils (void) |
c906108c | 2674 | { |
35096d9d | 2675 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
77dec115 EZ |
2676 | Set number of characters where GDB should wrap lines of its output."), _("\ |
2677 | Show number of characters where GDB should wrap lines of its output."), _("\ | |
2678 | This affects where GDB wraps its output to fit the screen width.\n\ | |
f81d1120 | 2679 | Setting this to \"unlimited\" or zero prevents GDB from wrapping its output."), |
35096d9d | 2680 | set_width_command, |
920d2a44 | 2681 | show_chars_per_line, |
35096d9d AC |
2682 | &setlist, &showlist); |
2683 | ||
2684 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
77dec115 EZ |
2685 | Set number of lines in a page for GDB output pagination."), _("\ |
2686 | Show number of lines in a page for GDB output pagination."), _("\ | |
2687 | This affects the number of lines after which GDB will pause\n\ | |
2688 | its output and ask you whether to continue.\n\ | |
f81d1120 | 2689 | Setting this to \"unlimited\" or zero causes GDB never pause during output."), |
35096d9d | 2690 | set_height_command, |
920d2a44 | 2691 | show_lines_per_page, |
35096d9d | 2692 | &setlist, &showlist); |
c5aa993b | 2693 | |
c906108c SS |
2694 | init_page_info (); |
2695 | ||
5bf193a2 AC |
2696 | add_setshow_boolean_cmd ("pagination", class_support, |
2697 | &pagination_enabled, _("\ | |
77dec115 EZ |
2698 | Set state of GDB output pagination."), _("\ |
2699 | Show state of GDB output pagination."), _("\ | |
2700 | When pagination is ON, GDB pauses at end of each screenful of\n\ | |
2701 | its output and asks you whether to continue.\n\ | |
f81d1120 | 2702 | Turning pagination off is an alternative to \"set height unlimited\"."), |
5bf193a2 | 2703 | NULL, |
920d2a44 | 2704 | show_pagination_enabled, |
5bf193a2 | 2705 | &setlist, &showlist); |
4261bedc | 2706 | |
c906108c SS |
2707 | if (xdb_commands) |
2708 | { | |
c5aa993b | 2709 | add_com ("am", class_support, pagination_on_command, |
1bedd215 | 2710 | _("Enable pagination")); |
c5aa993b | 2711 | add_com ("sm", class_support, pagination_off_command, |
1bedd215 | 2712 | _("Disable pagination")); |
c906108c SS |
2713 | } |
2714 | ||
5bf193a2 AC |
2715 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, |
2716 | &sevenbit_strings, _("\ | |
2717 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
2718 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
2719 | NULL, | |
920d2a44 | 2720 | show_sevenbit_strings, |
5bf193a2 AC |
2721 | &setprintlist, &showprintlist); |
2722 | ||
75feb17d DJ |
2723 | add_setshow_boolean_cmd ("timestamp", class_maintenance, |
2724 | &debug_timestamp, _("\ | |
2725 | Set timestamping of debugging messages."), _("\ | |
2726 | Show timestamping of debugging messages."), _("\ | |
2727 | When set, debugging messages will be marked with seconds and microseconds."), | |
2728 | NULL, | |
2729 | show_debug_timestamp, | |
2730 | &setdebuglist, &showdebuglist); | |
c906108c SS |
2731 | } |
2732 | ||
581e13c1 MS |
2733 | /* Print routines to handle variable size regs, etc. */ |
2734 | /* Temporary storage using circular buffer. */ | |
c906108c | 2735 | #define NUMCELLS 16 |
0759e0bf | 2736 | #define CELLSIZE 50 |
c5aa993b | 2737 | static char * |
fba45db2 | 2738 | get_cell (void) |
c906108c SS |
2739 | { |
2740 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b | 2741 | static int cell = 0; |
e0627e85 | 2742 | |
c5aa993b JM |
2743 | if (++cell >= NUMCELLS) |
2744 | cell = 0; | |
c906108c SS |
2745 | return buf[cell]; |
2746 | } | |
2747 | ||
66bf4b3a | 2748 | const char * |
5af949e3 | 2749 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
2750 | { |
2751 | /* Truncate address to the size of a target address, avoiding shifts | |
2752 | larger or equal than the width of a CORE_ADDR. The local | |
2753 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
581e13c1 | 2754 | when it won't occur. */ |
66bf4b3a AC |
2755 | /* NOTE: This assumes that the significant address information is |
2756 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2757 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2758 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2759 | ||
5af949e3 | 2760 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
2761 | |
2762 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2763 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2764 | return hex_string (addr); | |
2765 | } | |
2766 | ||
f1310107 TJB |
2767 | /* This function is described in "defs.h". */ |
2768 | ||
2769 | const char * | |
2770 | print_core_address (struct gdbarch *gdbarch, CORE_ADDR address) | |
2771 | { | |
2772 | int addr_bit = gdbarch_addr_bit (gdbarch); | |
2773 | ||
2774 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2775 | address &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2776 | ||
2777 | /* FIXME: cagney/2002-05-03: Need local_address_string() function | |
2778 | that returns the language localized string formatted to a width | |
2779 | based on gdbarch_addr_bit. */ | |
2780 | if (addr_bit <= 32) | |
2781 | return hex_string_custom (address, 8); | |
2782 | else | |
2783 | return hex_string_custom (address, 16); | |
2784 | } | |
2785 | ||
8e3b41a9 JK |
2786 | /* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */ |
2787 | ||
2788 | hashval_t | |
2789 | core_addr_hash (const void *ap) | |
2790 | { | |
2791 | const CORE_ADDR *addrp = ap; | |
2792 | ||
2793 | return *addrp; | |
2794 | } | |
2795 | ||
2796 | /* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */ | |
2797 | ||
2798 | int | |
2799 | core_addr_eq (const void *ap, const void *bp) | |
2800 | { | |
2801 | const CORE_ADDR *addr_ap = ap; | |
2802 | const CORE_ADDR *addr_bp = bp; | |
2803 | ||
2804 | return *addr_ap == *addr_bp; | |
2805 | } | |
2806 | ||
8cf46f62 MK |
2807 | static char * |
2808 | decimal2str (char *sign, ULONGEST addr, int width) | |
104c1213 | 2809 | { |
8cf46f62 | 2810 | /* Steal code from valprint.c:print_decimal(). Should this worry |
581e13c1 | 2811 | about the real size of addr as the above does? */ |
104c1213 | 2812 | unsigned long temp[3]; |
8cf46f62 | 2813 | char *str = get_cell (); |
104c1213 | 2814 | int i = 0; |
5d502164 | 2815 | |
104c1213 JM |
2816 | do |
2817 | { | |
2818 | temp[i] = addr % (1000 * 1000 * 1000); | |
2819 | addr /= (1000 * 1000 * 1000); | |
2820 | i++; | |
bb599908 | 2821 | width -= 9; |
104c1213 JM |
2822 | } |
2823 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 2824 | |
bb599908 PH |
2825 | width += 9; |
2826 | if (width < 0) | |
2827 | width = 0; | |
8cf46f62 | 2828 | |
104c1213 JM |
2829 | switch (i) |
2830 | { | |
2831 | case 1: | |
8cf46f62 | 2832 | xsnprintf (str, CELLSIZE, "%s%0*lu", sign, width, temp[0]); |
104c1213 JM |
2833 | break; |
2834 | case 2: | |
8cf46f62 MK |
2835 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu", sign, width, |
2836 | temp[1], temp[0]); | |
104c1213 JM |
2837 | break; |
2838 | case 3: | |
8cf46f62 MK |
2839 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu%09lu", sign, width, |
2840 | temp[2], temp[1], temp[0]); | |
bb599908 PH |
2841 | break; |
2842 | default: | |
2843 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2844 | _("failed internal consistency check")); |
bb599908 | 2845 | } |
8cf46f62 MK |
2846 | |
2847 | return str; | |
bb599908 PH |
2848 | } |
2849 | ||
8cf46f62 MK |
2850 | static char * |
2851 | octal2str (ULONGEST addr, int width) | |
bb599908 PH |
2852 | { |
2853 | unsigned long temp[3]; | |
8cf46f62 | 2854 | char *str = get_cell (); |
bb599908 | 2855 | int i = 0; |
5d502164 | 2856 | |
bb599908 PH |
2857 | do |
2858 | { | |
2859 | temp[i] = addr % (0100000 * 0100000); | |
2860 | addr /= (0100000 * 0100000); | |
2861 | i++; | |
2862 | width -= 10; | |
2863 | } | |
2864 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 2865 | |
bb599908 PH |
2866 | width += 10; |
2867 | if (width < 0) | |
2868 | width = 0; | |
8cf46f62 | 2869 | |
bb599908 PH |
2870 | switch (i) |
2871 | { | |
2872 | case 1: | |
2873 | if (temp[0] == 0) | |
8cf46f62 | 2874 | xsnprintf (str, CELLSIZE, "%*o", width, 0); |
bb599908 | 2875 | else |
8cf46f62 | 2876 | xsnprintf (str, CELLSIZE, "0%0*lo", width, temp[0]); |
bb599908 PH |
2877 | break; |
2878 | case 2: | |
8cf46f62 | 2879 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo", width, temp[1], temp[0]); |
bb599908 PH |
2880 | break; |
2881 | case 3: | |
8cf46f62 MK |
2882 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo%010lo", width, |
2883 | temp[2], temp[1], temp[0]); | |
104c1213 JM |
2884 | break; |
2885 | default: | |
8731e58e | 2886 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 2887 | _("failed internal consistency check")); |
104c1213 | 2888 | } |
8cf46f62 MK |
2889 | |
2890 | return str; | |
104c1213 JM |
2891 | } |
2892 | ||
2893 | char * | |
623d3eb1 | 2894 | pulongest (ULONGEST u) |
104c1213 | 2895 | { |
623d3eb1 | 2896 | return decimal2str ("", u, 0); |
104c1213 JM |
2897 | } |
2898 | ||
2899 | char * | |
623d3eb1 | 2900 | plongest (LONGEST l) |
104c1213 | 2901 | { |
623d3eb1 DE |
2902 | if (l < 0) |
2903 | return decimal2str ("-", -l, 0); | |
104c1213 | 2904 | else |
623d3eb1 | 2905 | return decimal2str ("", l, 0); |
104c1213 JM |
2906 | } |
2907 | ||
8cf46f62 | 2908 | /* Eliminate warning from compiler on 32-bit systems. */ |
5683e87a AC |
2909 | static int thirty_two = 32; |
2910 | ||
104c1213 | 2911 | char * |
5683e87a | 2912 | phex (ULONGEST l, int sizeof_l) |
104c1213 | 2913 | { |
45a1e866 | 2914 | char *str; |
8cf46f62 | 2915 | |
5683e87a | 2916 | switch (sizeof_l) |
104c1213 JM |
2917 | { |
2918 | case 8: | |
45a1e866 | 2919 | str = get_cell (); |
8cf46f62 MK |
2920 | xsnprintf (str, CELLSIZE, "%08lx%08lx", |
2921 | (unsigned long) (l >> thirty_two), | |
2922 | (unsigned long) (l & 0xffffffff)); | |
104c1213 JM |
2923 | break; |
2924 | case 4: | |
45a1e866 | 2925 | str = get_cell (); |
8cf46f62 | 2926 | xsnprintf (str, CELLSIZE, "%08lx", (unsigned long) l); |
104c1213 JM |
2927 | break; |
2928 | case 2: | |
45a1e866 | 2929 | str = get_cell (); |
8cf46f62 | 2930 | xsnprintf (str, CELLSIZE, "%04x", (unsigned short) (l & 0xffff)); |
104c1213 JM |
2931 | break; |
2932 | default: | |
45a1e866 | 2933 | str = phex (l, sizeof (l)); |
5683e87a | 2934 | break; |
104c1213 | 2935 | } |
8cf46f62 | 2936 | |
5683e87a | 2937 | return str; |
104c1213 JM |
2938 | } |
2939 | ||
c5aa993b | 2940 | char * |
5683e87a | 2941 | phex_nz (ULONGEST l, int sizeof_l) |
c906108c | 2942 | { |
faf833ca | 2943 | char *str; |
8cf46f62 | 2944 | |
5683e87a | 2945 | switch (sizeof_l) |
c906108c | 2946 | { |
c5aa993b JM |
2947 | case 8: |
2948 | { | |
5683e87a | 2949 | unsigned long high = (unsigned long) (l >> thirty_two); |
5d502164 | 2950 | |
faf833ca | 2951 | str = get_cell (); |
c5aa993b | 2952 | if (high == 0) |
8cf46f62 MK |
2953 | xsnprintf (str, CELLSIZE, "%lx", |
2954 | (unsigned long) (l & 0xffffffff)); | |
c5aa993b | 2955 | else |
8cf46f62 MK |
2956 | xsnprintf (str, CELLSIZE, "%lx%08lx", high, |
2957 | (unsigned long) (l & 0xffffffff)); | |
c906108c | 2958 | break; |
c5aa993b JM |
2959 | } |
2960 | case 4: | |
faf833ca | 2961 | str = get_cell (); |
8cf46f62 | 2962 | xsnprintf (str, CELLSIZE, "%lx", (unsigned long) l); |
c5aa993b JM |
2963 | break; |
2964 | case 2: | |
faf833ca | 2965 | str = get_cell (); |
8cf46f62 | 2966 | xsnprintf (str, CELLSIZE, "%x", (unsigned short) (l & 0xffff)); |
c5aa993b JM |
2967 | break; |
2968 | default: | |
faf833ca | 2969 | str = phex_nz (l, sizeof (l)); |
5683e87a | 2970 | break; |
c906108c | 2971 | } |
8cf46f62 | 2972 | |
5683e87a | 2973 | return str; |
c906108c | 2974 | } |
ac2e2ef7 | 2975 | |
0759e0bf AC |
2976 | /* Converts a LONGEST to a C-format hexadecimal literal and stores it |
2977 | in a static string. Returns a pointer to this string. */ | |
2978 | char * | |
2979 | hex_string (LONGEST num) | |
2980 | { | |
2981 | char *result = get_cell (); | |
e0627e85 | 2982 | |
8cf46f62 | 2983 | xsnprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num))); |
0759e0bf AC |
2984 | return result; |
2985 | } | |
2986 | ||
2987 | /* Converts a LONGEST number to a C-format hexadecimal literal and | |
2988 | stores it in a static string. Returns a pointer to this string | |
2989 | that is valid until the next call. The number is padded on the | |
2990 | left with 0s to at least WIDTH characters. */ | |
2991 | char * | |
2992 | hex_string_custom (LONGEST num, int width) | |
2993 | { | |
2994 | char *result = get_cell (); | |
2995 | char *result_end = result + CELLSIZE - 1; | |
2996 | const char *hex = phex_nz (num, sizeof (num)); | |
2997 | int hex_len = strlen (hex); | |
2998 | ||
2999 | if (hex_len > width) | |
3000 | width = hex_len; | |
3001 | if (width + 2 >= CELLSIZE) | |
3e43a32a MS |
3002 | internal_error (__FILE__, __LINE__, _("\ |
3003 | hex_string_custom: insufficient space to store result")); | |
0759e0bf AC |
3004 | |
3005 | strcpy (result_end - width - 2, "0x"); | |
3006 | memset (result_end - width, '0', width); | |
3007 | strcpy (result_end - hex_len, hex); | |
3008 | return result_end - width - 2; | |
3009 | } | |
ac2e2ef7 | 3010 | |
bb599908 PH |
3011 | /* Convert VAL to a numeral in the given radix. For |
3012 | * radix 10, IS_SIGNED may be true, indicating a signed quantity; | |
3013 | * otherwise VAL is interpreted as unsigned. If WIDTH is supplied, | |
3014 | * it is the minimum width (0-padded if needed). USE_C_FORMAT means | |
3015 | * to use C format in all cases. If it is false, then 'x' | |
581e13c1 | 3016 | * and 'o' formats do not include a prefix (0x or leading 0). */ |
bb599908 PH |
3017 | |
3018 | char * | |
3019 | int_string (LONGEST val, int radix, int is_signed, int width, | |
3020 | int use_c_format) | |
3021 | { | |
3022 | switch (radix) | |
3023 | { | |
3024 | case 16: | |
3025 | { | |
3026 | char *result; | |
5d502164 | 3027 | |
bb599908 PH |
3028 | if (width == 0) |
3029 | result = hex_string (val); | |
3030 | else | |
3031 | result = hex_string_custom (val, width); | |
3032 | if (! use_c_format) | |
3033 | result += 2; | |
3034 | return result; | |
3035 | } | |
3036 | case 10: | |
3037 | { | |
bb599908 | 3038 | if (is_signed && val < 0) |
8cf46f62 | 3039 | return decimal2str ("-", -val, width); |
bb599908 | 3040 | else |
8cf46f62 | 3041 | return decimal2str ("", val, width); |
bb599908 PH |
3042 | } |
3043 | case 8: | |
3044 | { | |
8cf46f62 | 3045 | char *result = octal2str (val, width); |
5d502164 | 3046 | |
bb599908 PH |
3047 | if (use_c_format || val == 0) |
3048 | return result; | |
3049 | else | |
3050 | return result + 1; | |
3051 | } | |
3052 | default: | |
3053 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3054 | _("failed internal consistency check")); |
bb599908 PH |
3055 | } |
3056 | } | |
3057 | ||
03dd37c3 AC |
3058 | /* Convert a CORE_ADDR into a string. */ |
3059 | const char * | |
3060 | core_addr_to_string (const CORE_ADDR addr) | |
49b563f9 KS |
3061 | { |
3062 | char *str = get_cell (); | |
e0627e85 | 3063 | |
49b563f9 KS |
3064 | strcpy (str, "0x"); |
3065 | strcat (str, phex (addr, sizeof (addr))); | |
3066 | return str; | |
3067 | } | |
3068 | ||
3069 | const char * | |
3070 | core_addr_to_string_nz (const CORE_ADDR addr) | |
03dd37c3 AC |
3071 | { |
3072 | char *str = get_cell (); | |
e0627e85 | 3073 | |
03dd37c3 AC |
3074 | strcpy (str, "0x"); |
3075 | strcat (str, phex_nz (addr, sizeof (addr))); | |
3076 | return str; | |
3077 | } | |
3078 | ||
3079 | /* Convert a string back into a CORE_ADDR. */ | |
3080 | CORE_ADDR | |
3081 | string_to_core_addr (const char *my_string) | |
3082 | { | |
3083 | CORE_ADDR addr = 0; | |
9544c605 | 3084 | |
03dd37c3 AC |
3085 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
3086 | { | |
ced572fe | 3087 | /* Assume that it is in hex. */ |
03dd37c3 | 3088 | int i; |
5d502164 | 3089 | |
03dd37c3 AC |
3090 | for (i = 2; my_string[i] != '\0'; i++) |
3091 | { | |
3092 | if (isdigit (my_string[i])) | |
3093 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 3094 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
3095 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
3096 | else | |
63f06803 | 3097 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
3098 | } |
3099 | } | |
3100 | else | |
3101 | { | |
3102 | /* Assume that it is in decimal. */ | |
3103 | int i; | |
5d502164 | 3104 | |
03dd37c3 AC |
3105 | for (i = 0; my_string[i] != '\0'; i++) |
3106 | { | |
3107 | if (isdigit (my_string[i])) | |
3108 | addr = (my_string[i] - '0') + (addr * 10); | |
3109 | else | |
63f06803 | 3110 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
3111 | } |
3112 | } | |
9544c605 | 3113 | |
03dd37c3 AC |
3114 | return addr; |
3115 | } | |
58d370e0 | 3116 | |
17ea7499 CES |
3117 | const char * |
3118 | host_address_to_string (const void *addr) | |
3119 | { | |
3120 | char *str = get_cell (); | |
ea8992ce | 3121 | |
773698b5 | 3122 | xsnprintf (str, CELLSIZE, "0x%s", phex_nz ((uintptr_t) addr, sizeof (addr))); |
17ea7499 CES |
3123 | return str; |
3124 | } | |
3125 | ||
58d370e0 TT |
3126 | char * |
3127 | gdb_realpath (const char *filename) | |
3128 | { | |
70d35819 AC |
3129 | /* Method 1: The system has a compile time upper bound on a filename |
3130 | path. Use that and realpath() to canonicalize the name. This is | |
3131 | the most common case. Note that, if there isn't a compile time | |
3132 | upper bound, you want to avoid realpath() at all costs. */ | |
a4db0f07 | 3133 | #if defined(HAVE_REALPATH) |
70d35819 | 3134 | { |
a4db0f07 | 3135 | # if defined (PATH_MAX) |
70d35819 | 3136 | char buf[PATH_MAX]; |
a4db0f07 RH |
3137 | # define USE_REALPATH |
3138 | # elif defined (MAXPATHLEN) | |
70d35819 | 3139 | char buf[MAXPATHLEN]; |
a4db0f07 RH |
3140 | # define USE_REALPATH |
3141 | # endif | |
70d35819 | 3142 | # if defined (USE_REALPATH) |
82c0260e | 3143 | const char *rp = realpath (filename, buf); |
5d502164 | 3144 | |
70d35819 AC |
3145 | if (rp == NULL) |
3146 | rp = filename; | |
3147 | return xstrdup (rp); | |
70d35819 | 3148 | # endif |
6f88d630 | 3149 | } |
a4db0f07 RH |
3150 | #endif /* HAVE_REALPATH */ |
3151 | ||
70d35819 AC |
3152 | /* Method 2: The host system (i.e., GNU) has the function |
3153 | canonicalize_file_name() which malloc's a chunk of memory and | |
3154 | returns that, use that. */ | |
3155 | #if defined(HAVE_CANONICALIZE_FILE_NAME) | |
3156 | { | |
3157 | char *rp = canonicalize_file_name (filename); | |
5d502164 | 3158 | |
70d35819 AC |
3159 | if (rp == NULL) |
3160 | return xstrdup (filename); | |
3161 | else | |
3162 | return rp; | |
3163 | } | |
58d370e0 | 3164 | #endif |
70d35819 | 3165 | |
6411e720 AC |
3166 | /* FIXME: cagney/2002-11-13: |
3167 | ||
3168 | Method 2a: Use realpath() with a NULL buffer. Some systems, due | |
7a9dd1b2 | 3169 | to the problems described in method 3, have modified their |
6411e720 AC |
3170 | realpath() implementation so that it will allocate a buffer when |
3171 | NULL is passed in. Before this can be used, though, some sort of | |
3172 | configure time test would need to be added. Otherwize the code | |
3173 | will likely core dump. */ | |
3174 | ||
70d35819 AC |
3175 | /* Method 3: Now we're getting desperate! The system doesn't have a |
3176 | compile time buffer size and no alternative function. Query the | |
3177 | OS, using pathconf(), for the buffer limit. Care is needed | |
3178 | though, some systems do not limit PATH_MAX (return -1 for | |
3179 | pathconf()) making it impossible to pass a correctly sized buffer | |
3180 | to realpath() (it could always overflow). On those systems, we | |
3181 | skip this. */ | |
8c0da261 | 3182 | #if defined (HAVE_REALPATH) && defined (_PC_PATH_MAX) && defined(HAVE_ALLOCA) |
70d35819 AC |
3183 | { |
3184 | /* Find out the max path size. */ | |
3185 | long path_max = pathconf ("/", _PC_PATH_MAX); | |
5d502164 | 3186 | |
70d35819 AC |
3187 | if (path_max > 0) |
3188 | { | |
3189 | /* PATH_MAX is bounded. */ | |
3190 | char *buf = alloca (path_max); | |
3191 | char *rp = realpath (filename, buf); | |
5d502164 | 3192 | |
70d35819 AC |
3193 | return xstrdup (rp ? rp : filename); |
3194 | } | |
3195 | } | |
3196 | #endif | |
3197 | ||
9c5e4386 JB |
3198 | /* The MS Windows method. If we don't have realpath, we assume we |
3199 | don't have symlinks and just canonicalize to a Windows absolute | |
3200 | path. GetFullPath converts ../ and ./ in relative paths to | |
3201 | absolute paths, filling in current drive if one is not given | |
3202 | or using the current directory of a specified drive (eg, "E:foo"). | |
3203 | It also converts all forward slashes to back slashes. */ | |
3204 | /* The file system is case-insensitive but case-preserving. | |
3205 | So we do not lowercase the path. Otherwise, we might not | |
3206 | be able to display the original casing in a given path. */ | |
3207 | #if defined (_WIN32) | |
3208 | { | |
3209 | char buf[MAX_PATH]; | |
3210 | DWORD len = GetFullPathName (filename, MAX_PATH, buf, NULL); | |
3211 | ||
3212 | if (len > 0 && len < MAX_PATH) | |
3213 | return xstrdup (buf); | |
3214 | } | |
3215 | #endif | |
3216 | ||
70d35819 AC |
3217 | /* This system is a lost cause, just dup the buffer. */ |
3218 | return xstrdup (filename); | |
58d370e0 | 3219 | } |
303c8ebd | 3220 | |
5b03f266 AC |
3221 | ULONGEST |
3222 | align_up (ULONGEST v, int n) | |
3223 | { | |
3224 | /* Check that N is really a power of two. */ | |
3225 | gdb_assert (n && (n & (n-1)) == 0); | |
3226 | return (v + n - 1) & -n; | |
3227 | } | |
3228 | ||
3229 | ULONGEST | |
3230 | align_down (ULONGEST v, int n) | |
3231 | { | |
3232 | /* Check that N is really a power of two. */ | |
3233 | gdb_assert (n && (n & (n-1)) == 0); | |
3234 | return (v & -n); | |
3235 | } | |
ae5a43e0 | 3236 | |
5bd1ef56 TT |
3237 | /* See utils.h. */ |
3238 | ||
3239 | LONGEST | |
3240 | gdb_sign_extend (LONGEST value, int bit) | |
3241 | { | |
3242 | gdb_assert (bit >= 1 && bit <= 8 * sizeof (LONGEST)); | |
3243 | ||
3244 | if (((value >> (bit - 1)) & 1) != 0) | |
3245 | { | |
3246 | LONGEST signbit = ((LONGEST) 1) << (bit - 1); | |
3247 | ||
3248 | value = (value ^ signbit) - signbit; | |
3249 | } | |
3250 | ||
3251 | return value; | |
3252 | } | |
3253 | ||
ae5a43e0 DJ |
3254 | /* Allocation function for the libiberty hash table which uses an |
3255 | obstack. The obstack is passed as DATA. */ | |
3256 | ||
3257 | void * | |
3258 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
3259 | { | |
3260 | unsigned int total = size * count; | |
3261 | void *ptr = obstack_alloc ((struct obstack *) data, total); | |
e0627e85 | 3262 | |
ae5a43e0 DJ |
3263 | memset (ptr, 0, total); |
3264 | return ptr; | |
3265 | } | |
3266 | ||
3267 | /* Trivial deallocation function for the libiberty splay tree and hash | |
3268 | table - don't deallocate anything. Rely on later deletion of the | |
3269 | obstack. DATA will be the obstack, although it is not needed | |
3270 | here. */ | |
3271 | ||
3272 | void | |
3273 | dummy_obstack_deallocate (void *object, void *data) | |
3274 | { | |
3275 | return; | |
3276 | } | |
253c8abb DJ |
3277 | |
3278 | /* The bit offset of the highest byte in a ULONGEST, for overflow | |
3279 | checking. */ | |
3280 | ||
3281 | #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT) | |
3282 | ||
3283 | /* True (non-zero) iff DIGIT is a valid digit in radix BASE, | |
3284 | where 2 <= BASE <= 36. */ | |
3285 | ||
3286 | static int | |
3287 | is_digit_in_base (unsigned char digit, int base) | |
3288 | { | |
3289 | if (!isalnum (digit)) | |
3290 | return 0; | |
3291 | if (base <= 10) | |
3292 | return (isdigit (digit) && digit < base + '0'); | |
3293 | else | |
3294 | return (isdigit (digit) || tolower (digit) < base - 10 + 'a'); | |
3295 | } | |
3296 | ||
3297 | static int | |
3298 | digit_to_int (unsigned char c) | |
3299 | { | |
3300 | if (isdigit (c)) | |
3301 | return c - '0'; | |
3302 | else | |
3303 | return tolower (c) - 'a' + 10; | |
3304 | } | |
3305 | ||
3306 | /* As for strtoul, but for ULONGEST results. */ | |
3307 | ||
3308 | ULONGEST | |
3309 | strtoulst (const char *num, const char **trailer, int base) | |
3310 | { | |
3311 | unsigned int high_part; | |
3312 | ULONGEST result; | |
3313 | int minus = 0; | |
3314 | int i = 0; | |
3315 | ||
3316 | /* Skip leading whitespace. */ | |
3317 | while (isspace (num[i])) | |
3318 | i++; | |
3319 | ||
3320 | /* Handle prefixes. */ | |
3321 | if (num[i] == '+') | |
3322 | i++; | |
3323 | else if (num[i] == '-') | |
3324 | { | |
3325 | minus = 1; | |
3326 | i++; | |
3327 | } | |
3328 | ||
3329 | if (base == 0 || base == 16) | |
3330 | { | |
3331 | if (num[i] == '0' && (num[i + 1] == 'x' || num[i + 1] == 'X')) | |
3332 | { | |
3333 | i += 2; | |
3334 | if (base == 0) | |
3335 | base = 16; | |
3336 | } | |
3337 | } | |
3338 | ||
3339 | if (base == 0 && num[i] == '0') | |
3340 | base = 8; | |
3341 | ||
3342 | if (base == 0) | |
3343 | base = 10; | |
3344 | ||
3345 | if (base < 2 || base > 36) | |
3346 | { | |
3347 | errno = EINVAL; | |
3348 | return 0; | |
3349 | } | |
3350 | ||
3351 | result = high_part = 0; | |
3352 | for (; is_digit_in_base (num[i], base); i += 1) | |
3353 | { | |
3354 | result = result * base + digit_to_int (num[i]); | |
3355 | high_part = high_part * base + (unsigned int) (result >> HIGH_BYTE_POSN); | |
3356 | result &= ((ULONGEST) 1 << HIGH_BYTE_POSN) - 1; | |
3357 | if (high_part > 0xff) | |
3358 | { | |
3359 | errno = ERANGE; | |
3360 | result = ~ (ULONGEST) 0; | |
3361 | high_part = 0; | |
3362 | minus = 0; | |
3363 | break; | |
3364 | } | |
3365 | } | |
3366 | ||
3367 | if (trailer != NULL) | |
3368 | *trailer = &num[i]; | |
3369 | ||
3370 | result = result + ((ULONGEST) high_part << HIGH_BYTE_POSN); | |
3371 | if (minus) | |
3372 | return -result; | |
3373 | else | |
3374 | return result; | |
3375 | } | |
e1024ff1 DJ |
3376 | |
3377 | /* Simple, portable version of dirname that does not modify its | |
3378 | argument. */ | |
3379 | ||
3380 | char * | |
3381 | ldirname (const char *filename) | |
3382 | { | |
3383 | const char *base = lbasename (filename); | |
3384 | char *dirname; | |
3385 | ||
3386 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
3387 | --base; | |
3388 | ||
3389 | if (base == filename) | |
3390 | return NULL; | |
3391 | ||
3392 | dirname = xmalloc (base - filename + 2); | |
3393 | memcpy (dirname, filename, base - filename); | |
3394 | ||
3395 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
3396 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
3397 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
3398 | && !IS_DIR_SEPARATOR (filename[0])) | |
3399 | dirname[base++ - filename] = '.'; | |
3400 | ||
3401 | dirname[base - filename] = '\0'; | |
3402 | return dirname; | |
3403 | } | |
d1a41061 PP |
3404 | |
3405 | /* Call libiberty's buildargv, and return the result. | |
3406 | If buildargv fails due to out-of-memory, call nomem. | |
3407 | Therefore, the returned value is guaranteed to be non-NULL, | |
3408 | unless the parameter itself is NULL. */ | |
3409 | ||
3410 | char ** | |
3411 | gdb_buildargv (const char *s) | |
3412 | { | |
3413 | char **argv = buildargv (s); | |
e0627e85 | 3414 | |
d1a41061 | 3415 | if (s != NULL && argv == NULL) |
d26e3629 | 3416 | malloc_failure (0); |
d1a41061 PP |
3417 | return argv; |
3418 | } | |
3c16cced | 3419 | |
dc146f7c VP |
3420 | int |
3421 | compare_positive_ints (const void *ap, const void *bp) | |
3422 | { | |
3423 | /* Because we know we're comparing two ints which are positive, | |
3424 | there's no danger of overflow here. */ | |
3425 | return * (int *) ap - * (int *) bp; | |
3426 | } | |
3427 | ||
f8eba3c6 TT |
3428 | /* String compare function for qsort. */ |
3429 | ||
3430 | int | |
3431 | compare_strings (const void *arg1, const void *arg2) | |
3432 | { | |
3433 | const char **s1 = (const char **) arg1; | |
3434 | const char **s2 = (const char **) arg2; | |
3435 | ||
3436 | return strcmp (*s1, *s2); | |
3437 | } | |
3438 | ||
d18b8b7a | 3439 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3e43a32a MS |
3440 | #define AMBIGUOUS_MESS2 \ |
3441 | ".\nUse \"set gnutarget format-name\" to specify the format." | |
d18b8b7a HZ |
3442 | |
3443 | const char * | |
3444 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) | |
3445 | { | |
3446 | char *ret, *retp; | |
3447 | int ret_len; | |
3448 | char **p; | |
3449 | ||
3450 | /* Check if errmsg just need simple return. */ | |
3451 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
3452 | return bfd_errmsg (error_tag); | |
3453 | ||
3454 | ret_len = strlen (bfd_errmsg (error_tag)) + strlen (AMBIGUOUS_MESS1) | |
3455 | + strlen (AMBIGUOUS_MESS2); | |
3456 | for (p = matching; *p; p++) | |
3457 | ret_len += strlen (*p) + 1; | |
3458 | ret = xmalloc (ret_len + 1); | |
3459 | retp = ret; | |
3460 | make_cleanup (xfree, ret); | |
3461 | ||
3462 | strcpy (retp, bfd_errmsg (error_tag)); | |
3463 | retp += strlen (retp); | |
3464 | ||
3465 | strcpy (retp, AMBIGUOUS_MESS1); | |
3466 | retp += strlen (retp); | |
3467 | ||
3468 | for (p = matching; *p; p++) | |
3469 | { | |
3470 | sprintf (retp, " %s", *p); | |
3471 | retp += strlen (retp); | |
3472 | } | |
3473 | xfree (matching); | |
3474 | ||
3475 | strcpy (retp, AMBIGUOUS_MESS2); | |
3476 | ||
3477 | return ret; | |
3478 | } | |
3479 | ||
74164c56 JK |
3480 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
3481 | ||
3482 | int | |
3483 | parse_pid_to_attach (char *args) | |
3484 | { | |
3485 | unsigned long pid; | |
3486 | char *dummy; | |
3487 | ||
3488 | if (!args) | |
3489 | error_no_arg (_("process-id to attach")); | |
3490 | ||
3491 | dummy = args; | |
3492 | pid = strtoul (args, &dummy, 0); | |
3493 | /* Some targets don't set errno on errors, grrr! */ | |
3494 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
3495 | error (_("Illegal process-id: %s."), args); | |
3496 | ||
3497 | return pid; | |
3498 | } | |
3499 | ||
353d1d73 JK |
3500 | /* Helper for make_bpstat_clear_actions_cleanup. */ |
3501 | ||
3502 | static void | |
3503 | do_bpstat_clear_actions_cleanup (void *unused) | |
3504 | { | |
3505 | bpstat_clear_actions (); | |
3506 | } | |
3507 | ||
3508 | /* Call bpstat_clear_actions for the case an exception is throw. You should | |
3509 | discard_cleanups if no exception is caught. */ | |
3510 | ||
3511 | struct cleanup * | |
3512 | make_bpstat_clear_actions_cleanup (void) | |
3513 | { | |
3514 | return make_cleanup (do_bpstat_clear_actions_cleanup, NULL); | |
3515 | } | |
3516 | ||
df15bd07 JK |
3517 | /* Check for GCC >= 4.x according to the symtab->producer string. Return minor |
3518 | version (x) of 4.x in such case. If it is not GCC or it is GCC older than | |
3519 | 4.x return -1. If it is GCC 5.x or higher return INT_MAX. */ | |
3520 | ||
3521 | int | |
3522 | producer_is_gcc_ge_4 (const char *producer) | |
3523 | { | |
3524 | const char *cs; | |
3525 | int major, minor; | |
3526 | ||
3527 | if (producer == NULL) | |
3528 | { | |
3529 | /* For unknown compilers expect their behavior is not compliant. For GCC | |
3530 | this case can also happen for -gdwarf-4 type units supported since | |
3531 | gcc-4.5. */ | |
3532 | ||
3533 | return -1; | |
3534 | } | |
3535 | ||
3536 | /* Skip any identifier after "GNU " - such as "C++" or "Java". */ | |
3537 | ||
3538 | if (strncmp (producer, "GNU ", strlen ("GNU ")) != 0) | |
3539 | { | |
3540 | /* For non-GCC compilers expect their behavior is not compliant. */ | |
3541 | ||
3542 | return -1; | |
3543 | } | |
3544 | cs = &producer[strlen ("GNU ")]; | |
3545 | while (*cs && !isdigit (*cs)) | |
3546 | cs++; | |
3547 | if (sscanf (cs, "%d.%d", &major, &minor) != 2) | |
3548 | { | |
3549 | /* Not recognized as GCC. */ | |
3550 | ||
3551 | return -1; | |
3552 | } | |
3553 | ||
3554 | if (major < 4) | |
3555 | return -1; | |
3556 | if (major > 4) | |
3557 | return INT_MAX; | |
3558 | return minor; | |
3559 | } | |
3560 | ||
e4ab2fad JK |
3561 | /* Helper for make_cleanup_free_char_ptr_vec. */ |
3562 | ||
3563 | static void | |
3564 | do_free_char_ptr_vec (void *arg) | |
3565 | { | |
3566 | VEC (char_ptr) *char_ptr_vec = arg; | |
3567 | ||
3568 | free_char_ptr_vec (char_ptr_vec); | |
3569 | } | |
3570 | ||
3571 | /* Make cleanup handler calling xfree for each element of CHAR_PTR_VEC and | |
3572 | final VEC_free for CHAR_PTR_VEC itself. | |
3573 | ||
3574 | You must not modify CHAR_PTR_VEC after this cleanup registration as the | |
3575 | CHAR_PTR_VEC base address may change on its updates. Contrary to VEC_free | |
3576 | this function does not (cannot) clear the pointer. */ | |
3577 | ||
3578 | struct cleanup * | |
3579 | make_cleanup_free_char_ptr_vec (VEC (char_ptr) *char_ptr_vec) | |
3580 | { | |
3581 | return make_cleanup (do_free_char_ptr_vec, char_ptr_vec); | |
3582 | } | |
3583 | ||
6dea1fbd JK |
3584 | /* Substitute all occurences of string FROM by string TO in *STRINGP. *STRINGP |
3585 | must come from xrealloc-compatible allocator and it may be updated. FROM | |
1564a261 JK |
3586 | needs to be delimited by IS_DIR_SEPARATOR or DIRNAME_SEPARATOR (or be |
3587 | located at the start or end of *STRINGP. */ | |
6dea1fbd JK |
3588 | |
3589 | void | |
3590 | substitute_path_component (char **stringp, const char *from, const char *to) | |
3591 | { | |
3592 | char *string = *stringp, *s; | |
3593 | const size_t from_len = strlen (from); | |
3594 | const size_t to_len = strlen (to); | |
3595 | ||
3596 | for (s = string;;) | |
3597 | { | |
3598 | s = strstr (s, from); | |
3599 | if (s == NULL) | |
3600 | break; | |
3601 | ||
1564a261 JK |
3602 | if ((s == string || IS_DIR_SEPARATOR (s[-1]) |
3603 | || s[-1] == DIRNAME_SEPARATOR) | |
3604 | && (s[from_len] == '\0' || IS_DIR_SEPARATOR (s[from_len]) | |
3605 | || s[from_len] == DIRNAME_SEPARATOR)) | |
6dea1fbd JK |
3606 | { |
3607 | char *string_new; | |
3608 | ||
3609 | string_new = xrealloc (string, (strlen (string) + to_len + 1)); | |
3610 | ||
3611 | /* Relocate the current S pointer. */ | |
3612 | s = s - string + string_new; | |
3613 | string = string_new; | |
3614 | ||
3615 | /* Replace from by to. */ | |
3616 | memmove (&s[to_len], &s[from_len], strlen (&s[from_len]) + 1); | |
3617 | memcpy (s, to, to_len); | |
3618 | ||
3619 | s += to_len; | |
3620 | } | |
3621 | else | |
3622 | s++; | |
3623 | } | |
3624 | ||
3625 | *stringp = string; | |
3626 | } | |
3627 | ||
0b6cb71e DE |
3628 | #ifdef HAVE_WAITPID |
3629 | ||
3630 | #ifdef SIGALRM | |
3631 | ||
3632 | /* SIGALRM handler for waitpid_with_timeout. */ | |
3633 | ||
3634 | static void | |
3635 | sigalrm_handler (int signo) | |
3636 | { | |
3637 | /* Nothing to do. */ | |
3638 | } | |
3639 | ||
3640 | #endif | |
3641 | ||
3642 | /* Wrapper to wait for child PID to die with TIMEOUT. | |
3643 | TIMEOUT is the time to stop waiting in seconds. | |
3644 | If TIMEOUT is zero, pass WNOHANG to waitpid. | |
3645 | Returns PID if it was successfully waited for, otherwise -1. | |
3646 | ||
3647 | Timeouts are currently implemented with alarm and SIGALRM. | |
3648 | If the host does not support them, this waits "forever". | |
3649 | It would be odd though for a host to have waitpid and not SIGALRM. */ | |
3650 | ||
3651 | pid_t | |
3652 | wait_to_die_with_timeout (pid_t pid, int *status, int timeout) | |
3653 | { | |
3654 | pid_t waitpid_result; | |
3655 | ||
3656 | gdb_assert (pid > 0); | |
3657 | gdb_assert (timeout >= 0); | |
3658 | ||
3659 | if (timeout > 0) | |
3660 | { | |
3661 | #ifdef SIGALRM | |
3662 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3663 | struct sigaction sa, old_sa; | |
3664 | ||
3665 | sa.sa_handler = sigalrm_handler; | |
3666 | sigemptyset (&sa.sa_mask); | |
3667 | sa.sa_flags = 0; | |
3668 | sigaction (SIGALRM, &sa, &old_sa); | |
3669 | #else | |
3670 | void (*ofunc) (); | |
3671 | ||
3672 | ofunc = (void (*)()) signal (SIGALRM, sigalrm_handler); | |
3673 | #endif | |
3674 | ||
3675 | alarm (timeout); | |
3676 | #endif | |
3677 | ||
3678 | waitpid_result = waitpid (pid, status, 0); | |
3679 | ||
3680 | #ifdef SIGALRM | |
3681 | alarm (0); | |
3682 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3683 | sigaction (SIGALRM, &old_sa, NULL); | |
3684 | #else | |
3685 | signal (SIGALRM, ofunc); | |
3686 | #endif | |
3687 | #endif | |
3688 | } | |
3689 | else | |
3690 | waitpid_result = waitpid (pid, status, WNOHANG); | |
3691 | ||
3692 | if (waitpid_result == pid) | |
3693 | return pid; | |
3694 | else | |
3695 | return -1; | |
3696 | } | |
3697 | ||
3698 | #endif /* HAVE_WAITPID */ | |
3699 | ||
202cbf1c JK |
3700 | /* Provide fnmatch compatible function for FNM_FILE_NAME matching of host files. |
3701 | Both FNM_FILE_NAME and FNM_NOESCAPE must be set in FLAGS. | |
3702 | ||
3703 | It handles correctly HAVE_DOS_BASED_FILE_SYSTEM and | |
3704 | HAVE_CASE_INSENSITIVE_FILE_SYSTEM. */ | |
3705 | ||
3706 | int | |
3707 | gdb_filename_fnmatch (const char *pattern, const char *string, int flags) | |
3708 | { | |
3709 | gdb_assert ((flags & FNM_FILE_NAME) != 0); | |
3710 | ||
3711 | /* It is unclear how '\' escaping vs. directory separator should coexist. */ | |
3712 | gdb_assert ((flags & FNM_NOESCAPE) != 0); | |
3713 | ||
3714 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3715 | { | |
3716 | char *pattern_slash, *string_slash; | |
3717 | ||
3718 | /* Replace '\' by '/' in both strings. */ | |
3719 | ||
3720 | pattern_slash = alloca (strlen (pattern) + 1); | |
3721 | strcpy (pattern_slash, pattern); | |
3722 | pattern = pattern_slash; | |
3723 | for (; *pattern_slash != 0; pattern_slash++) | |
3724 | if (IS_DIR_SEPARATOR (*pattern_slash)) | |
3725 | *pattern_slash = '/'; | |
3726 | ||
3727 | string_slash = alloca (strlen (string) + 1); | |
3728 | strcpy (string_slash, string); | |
3729 | string = string_slash; | |
3730 | for (; *string_slash != 0; string_slash++) | |
3731 | if (IS_DIR_SEPARATOR (*string_slash)) | |
3732 | *string_slash = '/'; | |
3733 | } | |
3734 | #endif /* HAVE_DOS_BASED_FILE_SYSTEM */ | |
3735 | ||
3736 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
3737 | flags |= FNM_CASEFOLD; | |
3738 | #endif /* HAVE_CASE_INSENSITIVE_FILE_SYSTEM */ | |
3739 | ||
3740 | return fnmatch (pattern, string, flags); | |
3741 | } | |
3742 | ||
2c0b251b PA |
3743 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
3744 | extern initialize_file_ftype _initialize_utils; | |
3745 | ||
3c16cced PA |
3746 | void |
3747 | _initialize_utils (void) | |
3748 | { | |
3749 | add_internal_problem_command (&internal_error_problem); | |
3750 | add_internal_problem_command (&internal_warning_problem); | |
3751 | } |