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