Commit | Line | Data |
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c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
1bac305b | 2 | |
8acc9f48 | 3 | Copyright (C) 1986-2013 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c | 19 | |
4e8f7a8b | 20 | #include "defs.h" |
5a56e9c5 | 21 | #include "dyn-string.h" |
4e8f7a8b DJ |
22 | #include "gdb_assert.h" |
23 | #include <ctype.h> | |
24 | #include "gdb_string.h" | |
0b6cb71e | 25 | #include "gdb_wait.h" |
4e8f7a8b | 26 | #include "event-top.h" |
60250e8b | 27 | #include "exceptions.h" |
95e54da7 | 28 | #include "gdbthread.h" |
202cbf1c | 29 | #include "fnmatch.h" |
cbb099e8 | 30 | #include "gdb_bfd.h" |
7991dee7 JK |
31 | #ifdef HAVE_SYS_RESOURCE_H |
32 | #include <sys/resource.h> | |
33 | #endif /* HAVE_SYS_RESOURCE_H */ | |
4e8f7a8b | 34 | |
6a83354a AC |
35 | #ifdef TUI |
36 | #include "tui/tui.h" /* For tui_get_command_dimension. */ | |
37 | #endif | |
38 | ||
9d271fd8 AC |
39 | #ifdef __GO32__ |
40 | #include <pc.h> | |
41 | #endif | |
42 | ||
581e13c1 | 43 | /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */ |
c906108c SS |
44 | #ifdef reg |
45 | #undef reg | |
46 | #endif | |
47 | ||
042be3a9 | 48 | #include <signal.h> |
0a1c4d10 | 49 | #include "timeval-utils.h" |
c906108c SS |
50 | #include "gdbcmd.h" |
51 | #include "serial.h" | |
52 | #include "bfd.h" | |
53 | #include "target.h" | |
50f182aa | 54 | #include "gdb-demangle.h" |
c906108c SS |
55 | #include "expression.h" |
56 | #include "language.h" | |
234b45d4 | 57 | #include "charset.h" |
c906108c | 58 | #include "annotate.h" |
303c8ebd | 59 | #include "filenames.h" |
7b90c3f9 | 60 | #include "symfile.h" |
ae5a43e0 | 61 | #include "gdb_obstack.h" |
9544c605 | 62 | #include "gdbcore.h" |
698ba934 | 63 | #include "top.h" |
7c953934 | 64 | #include "main.h" |
cb08cc53 | 65 | #include "solist.h" |
c906108c | 66 | |
8731e58e | 67 | #include "inferior.h" /* for signed_pointer_to_address */ |
ac2e2ef7 | 68 | |
2d1b2124 AC |
69 | #include <sys/param.h> /* For MAXPATHLEN */ |
70 | ||
3b78cdbb | 71 | #include "gdb_curses.h" |
020cc13c | 72 | |
dbda9972 | 73 | #include "readline/readline.h" |
c906108c | 74 | |
75feb17d DJ |
75 | #include <sys/time.h> |
76 | #include <time.h> | |
77 | ||
8626589c | 78 | #include "gdb_usleep.h" |
390a8aca | 79 | #include "interps.h" |
dc92e161 | 80 | #include "gdb_regex.h" |
8626589c | 81 | |
a3828db0 | 82 | #if !HAVE_DECL_MALLOC |
5ac79d78 | 83 | extern PTR malloc (); /* ARI: PTR */ |
3c37485b | 84 | #endif |
a3828db0 | 85 | #if !HAVE_DECL_REALLOC |
5ac79d78 | 86 | extern PTR realloc (); /* ARI: PTR */ |
0e52036f | 87 | #endif |
a3828db0 | 88 | #if !HAVE_DECL_FREE |
81b8eb80 AC |
89 | extern void free (); |
90 | #endif | |
81b8eb80 | 91 | |
9a4105ab | 92 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
93 | |
94 | /* Prototypes for local functions */ | |
95 | ||
d9fcf2fb | 96 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
a0b31db1 | 97 | va_list, int) ATTRIBUTE_PRINTF (2, 0); |
c906108c | 98 | |
d9fcf2fb | 99 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 100 | |
a14ed312 | 101 | static void prompt_for_continue (void); |
c906108c | 102 | |
eb0d3137 | 103 | static void set_screen_size (void); |
a14ed312 | 104 | static void set_width (void); |
c906108c | 105 | |
260c0b2a DE |
106 | /* Time spent in prompt_for_continue in the currently executing command |
107 | waiting for user to respond. | |
108 | Initialized in make_command_stats_cleanup. | |
109 | Modified in prompt_for_continue and defaulted_query. | |
110 | Used in report_command_stats. */ | |
111 | ||
112 | static struct timeval prompt_for_continue_wait_time; | |
113 | ||
75feb17d DJ |
114 | /* A flag indicating whether to timestamp debugging messages. */ |
115 | ||
116 | static int debug_timestamp = 0; | |
117 | ||
581e13c1 | 118 | /* Nonzero if we have job control. */ |
c906108c SS |
119 | |
120 | int job_control; | |
121 | ||
522002f9 | 122 | #ifndef HAVE_PYTHON |
c906108c SS |
123 | /* Nonzero means a quit has been requested. */ |
124 | ||
125 | int quit_flag; | |
522002f9 | 126 | #endif /* HAVE_PYTHON */ |
c906108c SS |
127 | |
128 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
129 | than waiting until QUIT is executed. Be careful in setting this; | |
130 | code which executes with immediate_quit set has to be very careful | |
131 | about being able to deal with being interrupted at any time. It is | |
132 | almost always better to use QUIT; the only exception I can think of | |
133 | is being able to quit out of a system call (using EINTR loses if | |
134 | the SIGINT happens between the previous QUIT and the system call). | |
135 | To immediately quit in the case in which a SIGINT happens between | |
136 | the previous QUIT and setting immediate_quit (desirable anytime we | |
137 | expect to block), call QUIT after setting immediate_quit. */ | |
138 | ||
139 | int immediate_quit; | |
140 | ||
522002f9 TT |
141 | #ifndef HAVE_PYTHON |
142 | ||
143 | /* Clear the quit flag. */ | |
144 | ||
145 | void | |
146 | clear_quit_flag (void) | |
147 | { | |
148 | quit_flag = 0; | |
149 | } | |
150 | ||
151 | /* Set the quit flag. */ | |
152 | ||
153 | void | |
154 | set_quit_flag (void) | |
155 | { | |
156 | quit_flag = 1; | |
157 | } | |
158 | ||
159 | /* Return true if the quit flag has been set, false otherwise. */ | |
160 | ||
161 | int | |
162 | check_quit_flag (void) | |
163 | { | |
164 | /* This is written in a particular way to avoid races. */ | |
165 | if (quit_flag) | |
166 | { | |
167 | quit_flag = 0; | |
168 | return 1; | |
169 | } | |
170 | ||
171 | return 0; | |
172 | } | |
173 | ||
174 | #endif /* HAVE_PYTHON */ | |
175 | ||
c906108c SS |
176 | /* Nonzero means that strings with character values >0x7F should be printed |
177 | as octal escapes. Zero means just print the value (e.g. it's an | |
178 | international character, and the terminal or window can cope.) */ | |
179 | ||
180 | int sevenbit_strings = 0; | |
920d2a44 AC |
181 | static void |
182 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
183 | struct cmd_list_element *c, const char *value) | |
184 | { | |
3e43a32a MS |
185 | fprintf_filtered (file, _("Printing of 8-bit characters " |
186 | "in strings as \\nnn is %s.\n"), | |
920d2a44 AC |
187 | value); |
188 | } | |
c906108c SS |
189 | |
190 | /* String to be printed before error messages, if any. */ | |
191 | ||
192 | char *error_pre_print; | |
193 | ||
194 | /* String to be printed before quit messages, if any. */ | |
195 | ||
196 | char *quit_pre_print; | |
197 | ||
198 | /* String to be printed before warning messages, if any. */ | |
199 | ||
200 | char *warning_pre_print = "\nwarning: "; | |
201 | ||
202 | int pagination_enabled = 1; | |
920d2a44 AC |
203 | static void |
204 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
205 | struct cmd_list_element *c, const char *value) | |
206 | { | |
207 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
208 | } | |
209 | ||
c906108c | 210 | \f |
c27f5738 | 211 | /* Cleanup utilities. |
c5aa993b | 212 | |
c27f5738 DE |
213 | These are not defined in cleanups.c (nor declared in cleanups.h) |
214 | because while they use the "cleanup API" they are not part of the | |
215 | "cleanup API". */ | |
7a292a7a | 216 | |
7a292a7a | 217 | static void |
fba45db2 | 218 | do_freeargv (void *arg) |
7a292a7a | 219 | { |
c5aa993b | 220 | freeargv ((char **) arg); |
7a292a7a SS |
221 | } |
222 | ||
223 | struct cleanup * | |
fba45db2 | 224 | make_cleanup_freeargv (char **arg) |
7a292a7a | 225 | { |
e0088cfd | 226 | return make_cleanup (do_freeargv, arg); |
7a292a7a SS |
227 | } |
228 | ||
5a56e9c5 DE |
229 | static void |
230 | do_dyn_string_delete (void *arg) | |
231 | { | |
232 | dyn_string_delete ((dyn_string_t) arg); | |
233 | } | |
234 | ||
235 | struct cleanup * | |
236 | make_cleanup_dyn_string_delete (dyn_string_t arg) | |
237 | { | |
e0088cfd | 238 | return make_cleanup (do_dyn_string_delete, arg); |
5a56e9c5 DE |
239 | } |
240 | ||
5c65bbb6 AC |
241 | static void |
242 | do_bfd_close_cleanup (void *arg) | |
243 | { | |
cbb099e8 | 244 | gdb_bfd_unref (arg); |
5c65bbb6 AC |
245 | } |
246 | ||
247 | struct cleanup * | |
f9a062ff | 248 | make_cleanup_bfd_unref (bfd *abfd) |
5c65bbb6 AC |
249 | { |
250 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
251 | } | |
252 | ||
f5ff8c83 AC |
253 | static void |
254 | do_close_cleanup (void *arg) | |
255 | { | |
f042532c | 256 | int *fd = arg; |
e0627e85 | 257 | |
f042532c | 258 | close (*fd); |
f5ff8c83 AC |
259 | } |
260 | ||
261 | struct cleanup * | |
262 | make_cleanup_close (int fd) | |
263 | { | |
f042532c | 264 | int *saved_fd = xmalloc (sizeof (fd)); |
e0627e85 | 265 | |
f042532c | 266 | *saved_fd = fd; |
a05016c0 | 267 | return make_cleanup_dtor (do_close_cleanup, saved_fd, xfree); |
f5ff8c83 AC |
268 | } |
269 | ||
7c8a8b04 TT |
270 | /* Helper function which does the work for make_cleanup_fclose. */ |
271 | ||
272 | static void | |
273 | do_fclose_cleanup (void *arg) | |
274 | { | |
c02866a0 | 275 | FILE *file = arg; |
e0627e85 | 276 | |
c02866a0 | 277 | fclose (file); |
7c8a8b04 TT |
278 | } |
279 | ||
280 | /* Return a new cleanup that closes FILE. */ | |
281 | ||
282 | struct cleanup * | |
283 | make_cleanup_fclose (FILE *file) | |
284 | { | |
285 | return make_cleanup (do_fclose_cleanup, file); | |
286 | } | |
287 | ||
16ad9370 TT |
288 | /* Helper function which does the work for make_cleanup_obstack_free. */ |
289 | ||
290 | static void | |
291 | do_obstack_free (void *arg) | |
292 | { | |
293 | struct obstack *ob = arg; | |
e0627e85 | 294 | |
16ad9370 TT |
295 | obstack_free (ob, NULL); |
296 | } | |
297 | ||
298 | /* Return a new cleanup that frees OBSTACK. */ | |
299 | ||
300 | struct cleanup * | |
301 | make_cleanup_obstack_free (struct obstack *obstack) | |
302 | { | |
303 | return make_cleanup (do_obstack_free, obstack); | |
304 | } | |
305 | ||
11cf8741 | 306 | static void |
d9fcf2fb | 307 | do_ui_file_delete (void *arg) |
11cf8741 | 308 | { |
d9fcf2fb | 309 | ui_file_delete (arg); |
11cf8741 JM |
310 | } |
311 | ||
312 | struct cleanup * | |
d9fcf2fb | 313 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 314 | { |
e0088cfd | 315 | return make_cleanup (do_ui_file_delete, arg); |
11cf8741 JM |
316 | } |
317 | ||
8d4d924b JK |
318 | /* Helper function for make_cleanup_ui_out_redirect_pop. */ |
319 | ||
320 | static void | |
321 | do_ui_out_redirect_pop (void *arg) | |
322 | { | |
323 | struct ui_out *uiout = arg; | |
324 | ||
325 | if (ui_out_redirect (uiout, NULL) < 0) | |
326 | warning (_("Cannot restore redirection of the current output protocol")); | |
327 | } | |
328 | ||
329 | /* Return a new cleanup that pops the last redirection by ui_out_redirect | |
330 | with NULL parameter. */ | |
331 | ||
332 | struct cleanup * | |
333 | make_cleanup_ui_out_redirect_pop (struct ui_out *uiout) | |
334 | { | |
e0088cfd | 335 | return make_cleanup (do_ui_out_redirect_pop, uiout); |
8d4d924b JK |
336 | } |
337 | ||
7b90c3f9 JB |
338 | static void |
339 | do_free_section_addr_info (void *arg) | |
340 | { | |
341 | free_section_addr_info (arg); | |
342 | } | |
343 | ||
344 | struct cleanup * | |
345 | make_cleanup_free_section_addr_info (struct section_addr_info *addrs) | |
346 | { | |
e0088cfd | 347 | return make_cleanup (do_free_section_addr_info, addrs); |
7b90c3f9 JB |
348 | } |
349 | ||
0b080f59 VP |
350 | struct restore_integer_closure |
351 | { | |
352 | int *variable; | |
353 | int value; | |
354 | }; | |
355 | ||
356 | static void | |
357 | restore_integer (void *p) | |
358 | { | |
359 | struct restore_integer_closure *closure = p; | |
e0627e85 | 360 | |
0b080f59 VP |
361 | *(closure->variable) = closure->value; |
362 | } | |
7b90c3f9 | 363 | |
3e43a32a MS |
364 | /* Remember the current value of *VARIABLE and make it restored when |
365 | the cleanup is run. */ | |
5da1313b | 366 | |
c906108c | 367 | struct cleanup * |
0b080f59 VP |
368 | make_cleanup_restore_integer (int *variable) |
369 | { | |
370 | struct restore_integer_closure *c = | |
371 | xmalloc (sizeof (struct restore_integer_closure)); | |
e0627e85 | 372 | |
0b080f59 VP |
373 | c->variable = variable; |
374 | c->value = *variable; | |
375 | ||
e0088cfd | 376 | return make_cleanup_dtor (restore_integer, (void *) c, xfree); |
0b080f59 VP |
377 | } |
378 | ||
3e43a32a MS |
379 | /* Remember the current value of *VARIABLE and make it restored when |
380 | the cleanup is run. */ | |
5da1313b JK |
381 | |
382 | struct cleanup * | |
383 | make_cleanup_restore_uinteger (unsigned int *variable) | |
384 | { | |
385 | return make_cleanup_restore_integer ((int *) variable); | |
386 | } | |
387 | ||
c0edd9ed JK |
388 | /* Helper for make_cleanup_unpush_target. */ |
389 | ||
390 | static void | |
391 | do_unpush_target (void *arg) | |
392 | { | |
393 | struct target_ops *ops = arg; | |
394 | ||
395 | unpush_target (ops); | |
396 | } | |
397 | ||
398 | /* Return a new cleanup that unpushes OPS. */ | |
399 | ||
400 | struct cleanup * | |
401 | make_cleanup_unpush_target (struct target_ops *ops) | |
402 | { | |
e0088cfd | 403 | return make_cleanup (do_unpush_target, ops); |
c0edd9ed JK |
404 | } |
405 | ||
8e3b41a9 JK |
406 | /* Helper for make_cleanup_htab_delete compile time checking the types. */ |
407 | ||
408 | static void | |
409 | do_htab_delete_cleanup (void *htab_voidp) | |
410 | { | |
411 | htab_t htab = htab_voidp; | |
412 | ||
413 | htab_delete (htab); | |
414 | } | |
415 | ||
416 | /* Return a new cleanup that deletes HTAB. */ | |
417 | ||
418 | struct cleanup * | |
419 | make_cleanup_htab_delete (htab_t htab) | |
420 | { | |
421 | return make_cleanup (do_htab_delete_cleanup, htab); | |
422 | } | |
423 | ||
5da1313b JK |
424 | struct restore_ui_file_closure |
425 | { | |
426 | struct ui_file **variable; | |
427 | struct ui_file *value; | |
428 | }; | |
429 | ||
430 | static void | |
431 | do_restore_ui_file (void *p) | |
432 | { | |
433 | struct restore_ui_file_closure *closure = p; | |
434 | ||
435 | *(closure->variable) = closure->value; | |
436 | } | |
437 | ||
438 | /* Remember the current value of *VARIABLE and make it restored when | |
439 | the cleanup is run. */ | |
440 | ||
441 | struct cleanup * | |
442 | make_cleanup_restore_ui_file (struct ui_file **variable) | |
443 | { | |
444 | struct restore_ui_file_closure *c = XNEW (struct restore_ui_file_closure); | |
445 | ||
446 | c->variable = variable; | |
447 | c->value = *variable; | |
448 | ||
449 | return make_cleanup_dtor (do_restore_ui_file, (void *) c, xfree); | |
450 | } | |
451 | ||
028d0ed5 TJB |
452 | /* Helper for make_cleanup_value_free_to_mark. */ |
453 | ||
454 | static void | |
455 | do_value_free_to_mark (void *value) | |
456 | { | |
457 | value_free_to_mark ((struct value *) value); | |
458 | } | |
459 | ||
460 | /* Free all values allocated since MARK was obtained by value_mark | |
461 | (except for those released) when the cleanup is run. */ | |
462 | ||
463 | struct cleanup * | |
464 | make_cleanup_value_free_to_mark (struct value *mark) | |
465 | { | |
e0088cfd | 466 | return make_cleanup (do_value_free_to_mark, mark); |
028d0ed5 TJB |
467 | } |
468 | ||
72fc29ff TT |
469 | /* Helper for make_cleanup_value_free. */ |
470 | ||
471 | static void | |
472 | do_value_free (void *value) | |
473 | { | |
474 | value_free (value); | |
475 | } | |
476 | ||
477 | /* Free VALUE. */ | |
478 | ||
479 | struct cleanup * | |
480 | make_cleanup_value_free (struct value *value) | |
481 | { | |
e0088cfd | 482 | return make_cleanup (do_value_free, value); |
72fc29ff TT |
483 | } |
484 | ||
cb08cc53 JK |
485 | /* Helper for make_cleanup_free_so. */ |
486 | ||
487 | static void | |
488 | do_free_so (void *arg) | |
489 | { | |
490 | struct so_list *so = arg; | |
491 | ||
492 | free_so (so); | |
493 | } | |
494 | ||
495 | /* Make cleanup handler calling free_so for SO. */ | |
496 | ||
497 | struct cleanup * | |
498 | make_cleanup_free_so (struct so_list *so) | |
499 | { | |
e0088cfd | 500 | return make_cleanup (do_free_so, so); |
cb08cc53 JK |
501 | } |
502 | ||
5b12a61c JK |
503 | /* Helper for make_cleanup_restore_current_language. */ |
504 | ||
505 | static void | |
506 | do_restore_current_language (void *p) | |
507 | { | |
508 | enum language saved_lang = (uintptr_t) p; | |
509 | ||
510 | set_language (saved_lang); | |
511 | } | |
512 | ||
513 | /* Remember the current value of CURRENT_LANGUAGE and make it restored when | |
514 | the cleanup is run. */ | |
515 | ||
516 | struct cleanup * | |
517 | make_cleanup_restore_current_language (void) | |
518 | { | |
519 | enum language saved_lang = current_language->la_language; | |
520 | ||
521 | return make_cleanup (do_restore_current_language, | |
522 | (void *) (uintptr_t) saved_lang); | |
523 | } | |
524 | ||
c906108c SS |
525 | /* This function is useful for cleanups. |
526 | Do | |
527 | ||
c5aa993b JM |
528 | foo = xmalloc (...); |
529 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
530 | |
531 | to arrange to free the object thus allocated. */ | |
532 | ||
533 | void | |
2f9429ae | 534 | free_current_contents (void *ptr) |
c906108c | 535 | { |
2f9429ae | 536 | void **location = ptr; |
e0627e85 | 537 | |
e2f9c474 | 538 | if (location == NULL) |
8e65ff28 | 539 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 540 | _("free_current_contents: NULL pointer")); |
2f9429ae | 541 | if (*location != NULL) |
e2f9c474 | 542 | { |
b8c9b27d | 543 | xfree (*location); |
e2f9c474 AC |
544 | *location = NULL; |
545 | } | |
c906108c SS |
546 | } |
547 | ||
0f3bb72e PH |
548 | /* If nonzero, display time usage both at startup and for each command. */ |
549 | ||
550 | static int display_time; | |
551 | ||
552 | /* If nonzero, display space usage both at startup and for each command. */ | |
553 | ||
554 | static int display_space; | |
555 | ||
556 | /* Records a run time and space usage to be used as a base for | |
557 | reporting elapsed time or change in space. In addition, | |
558 | the msg_type field indicates whether the saved time is from the | |
559 | beginning of GDB execution (0) or the beginning of an individual | |
560 | command execution (1). */ | |
561 | struct cmd_stats | |
562 | { | |
563 | int msg_type; | |
0a1c4d10 DE |
564 | long start_cpu_time; |
565 | struct timeval start_wall_time; | |
0f3bb72e PH |
566 | long start_space; |
567 | }; | |
568 | ||
569 | /* Set whether to display time statistics to NEW_VALUE (non-zero | |
570 | means true). */ | |
571 | void | |
572 | set_display_time (int new_value) | |
573 | { | |
574 | display_time = new_value; | |
575 | } | |
576 | ||
577 | /* Set whether to display space statistics to NEW_VALUE (non-zero | |
578 | means true). */ | |
579 | void | |
580 | set_display_space (int new_value) | |
581 | { | |
582 | display_space = new_value; | |
583 | } | |
584 | ||
585 | /* As indicated by display_time and display_space, report GDB's elapsed time | |
586 | and space usage from the base time and space provided in ARG, which | |
581e13c1 MS |
587 | must be a pointer to a struct cmd_stat. This function is intended |
588 | to be called as a cleanup. */ | |
0f3bb72e PH |
589 | static void |
590 | report_command_stats (void *arg) | |
591 | { | |
592 | struct cmd_stats *start_stats = (struct cmd_stats *) arg; | |
593 | int msg_type = start_stats->msg_type; | |
594 | ||
595 | if (display_time) | |
596 | { | |
0a1c4d10 DE |
597 | long cmd_time = get_run_time () - start_stats->start_cpu_time; |
598 | struct timeval now_wall_time, delta_wall_time; | |
599 | ||
600 | gettimeofday (&now_wall_time, NULL); | |
601 | timeval_sub (&delta_wall_time, | |
602 | &now_wall_time, &start_stats->start_wall_time); | |
0f3bb72e | 603 | |
260c0b2a DE |
604 | /* Subtract time spend in prompt_for_continue from walltime. */ |
605 | timeval_sub (&delta_wall_time, | |
606 | &delta_wall_time, &prompt_for_continue_wait_time); | |
607 | ||
0f3bb72e | 608 | printf_unfiltered (msg_type == 0 |
0a1c4d10 DE |
609 | ? _("Startup time: %ld.%06ld (cpu), %ld.%06ld (wall)\n") |
610 | : _("Command execution time: %ld.%06ld (cpu), %ld.%06ld (wall)\n"), | |
611 | cmd_time / 1000000, cmd_time % 1000000, | |
2b54dda2 DM |
612 | (long) delta_wall_time.tv_sec, |
613 | (long) delta_wall_time.tv_usec); | |
0f3bb72e PH |
614 | } |
615 | ||
616 | if (display_space) | |
617 | { | |
618 | #ifdef HAVE_SBRK | |
619 | char *lim = (char *) sbrk (0); | |
620 | ||
621 | long space_now = lim - lim_at_start; | |
622 | long space_diff = space_now - start_stats->start_space; | |
623 | ||
624 | printf_unfiltered (msg_type == 0 | |
5d901a73 TT |
625 | ? _("Space used: %ld (%s%ld during startup)\n") |
626 | : _("Space used: %ld (%s%ld for this command)\n"), | |
0f3bb72e | 627 | space_now, |
5d901a73 | 628 | (space_diff >= 0 ? "+" : ""), |
0f3bb72e PH |
629 | space_diff); |
630 | #endif | |
631 | } | |
632 | } | |
633 | ||
634 | /* Create a cleanup that reports time and space used since its | |
635 | creation. Precise messages depend on MSG_TYPE: | |
636 | 0: Initial time/space | |
637 | 1: Individual command time/space. */ | |
638 | struct cleanup * | |
639 | make_command_stats_cleanup (int msg_type) | |
640 | { | |
260c0b2a | 641 | static const struct timeval zero_timeval = { 0 }; |
0f3bb72e PH |
642 | struct cmd_stats *new_stat = XMALLOC (struct cmd_stats); |
643 | ||
644 | #ifdef HAVE_SBRK | |
645 | char *lim = (char *) sbrk (0); | |
646 | new_stat->start_space = lim - lim_at_start; | |
647 | #endif | |
648 | ||
649 | new_stat->msg_type = msg_type; | |
0a1c4d10 DE |
650 | new_stat->start_cpu_time = get_run_time (); |
651 | gettimeofday (&new_stat->start_wall_time, NULL); | |
0f3bb72e | 652 | |
260c0b2a DE |
653 | /* Initalize timer to keep track of how long we waited for the user. */ |
654 | prompt_for_continue_wait_time = zero_timeval; | |
655 | ||
0f3bb72e PH |
656 | return make_cleanup_dtor (report_command_stats, new_stat, xfree); |
657 | } | |
c906108c | 658 | \f |
c5aa993b | 659 | |
8731e58e | 660 | |
f5a96129 AC |
661 | /* Print a warning message. The first argument STRING is the warning |
662 | message, used as an fprintf format string, the second is the | |
663 | va_list of arguments for that string. A warning is unfiltered (not | |
664 | paginated) so that the user does not need to page through each | |
665 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
666 | |
667 | void | |
f5a96129 | 668 | vwarning (const char *string, va_list args) |
c906108c | 669 | { |
9a4105ab AC |
670 | if (deprecated_warning_hook) |
671 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
672 | else |
673 | { | |
674 | target_terminal_ours (); | |
581e13c1 | 675 | wrap_here (""); /* Force out any buffered output. */ |
f5a96129 AC |
676 | gdb_flush (gdb_stdout); |
677 | if (warning_pre_print) | |
306d9ac5 | 678 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
679 | vfprintf_unfiltered (gdb_stderr, string, args); |
680 | fprintf_unfiltered (gdb_stderr, "\n"); | |
681 | va_end (args); | |
682 | } | |
c906108c SS |
683 | } |
684 | ||
685 | /* Print a warning message. | |
686 | The first argument STRING is the warning message, used as a fprintf string, | |
687 | and the remaining args are passed as arguments to it. | |
688 | The primary difference between warnings and errors is that a warning | |
689 | does not force the return to command level. */ | |
690 | ||
c906108c | 691 | void |
8731e58e | 692 | warning (const char *string, ...) |
c906108c SS |
693 | { |
694 | va_list args; | |
e0627e85 | 695 | |
c906108c | 696 | va_start (args, string); |
f5a96129 AC |
697 | vwarning (string, args); |
698 | va_end (args); | |
c906108c SS |
699 | } |
700 | ||
c906108c SS |
701 | /* Print an error message and return to command level. |
702 | The first argument STRING is the error message, used as a fprintf string, | |
703 | and the remaining args are passed as arguments to it. */ | |
704 | ||
c25c4a8b | 705 | void |
4ce44c66 JM |
706 | verror (const char *string, va_list args) |
707 | { | |
6b1b7650 | 708 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
709 | } |
710 | ||
c25c4a8b | 711 | void |
8731e58e | 712 | error (const char *string, ...) |
c906108c SS |
713 | { |
714 | va_list args; | |
e0627e85 | 715 | |
c906108c | 716 | va_start (args, string); |
6b1b7650 | 717 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 | 718 | va_end (args); |
c906108c SS |
719 | } |
720 | ||
d75e3c94 JJ |
721 | /* Print an error message and quit. |
722 | The first argument STRING is the error message, used as a fprintf string, | |
723 | and the remaining args are passed as arguments to it. */ | |
724 | ||
c25c4a8b | 725 | void |
d75e3c94 JJ |
726 | vfatal (const char *string, va_list args) |
727 | { | |
6b1b7650 | 728 | throw_vfatal (string, args); |
d75e3c94 JJ |
729 | } |
730 | ||
c25c4a8b | 731 | void |
d75e3c94 JJ |
732 | fatal (const char *string, ...) |
733 | { | |
734 | va_list args; | |
e0627e85 | 735 | |
d75e3c94 | 736 | va_start (args, string); |
6b1b7650 | 737 | throw_vfatal (string, args); |
d75e3c94 JJ |
738 | va_end (args); |
739 | } | |
740 | ||
c25c4a8b | 741 | void |
d75e3c94 | 742 | error_stream (struct ui_file *stream) |
2acceee2 | 743 | { |
759ef836 | 744 | char *message = ui_file_xstrdup (stream, NULL); |
e0627e85 | 745 | |
6b1b7650 | 746 | make_cleanup (xfree, message); |
8a3fe4f8 | 747 | error (("%s"), message); |
2acceee2 | 748 | } |
c906108c | 749 | |
7991dee7 JK |
750 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
751 | ||
752 | static void | |
753 | dump_core (void) | |
754 | { | |
755 | #ifdef HAVE_SETRLIMIT | |
756 | struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY }; | |
757 | ||
758 | setrlimit (RLIMIT_CORE, &rlim); | |
759 | #endif /* HAVE_SETRLIMIT */ | |
760 | ||
761 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
762 | } | |
763 | ||
3e43a32a MS |
764 | /* Check whether GDB will be able to dump core using the dump_core |
765 | function. */ | |
7991dee7 JK |
766 | |
767 | static int | |
768 | can_dump_core (const char *reason) | |
769 | { | |
770 | #ifdef HAVE_GETRLIMIT | |
771 | struct rlimit rlim; | |
772 | ||
773 | /* Be quiet and assume we can dump if an error is returned. */ | |
774 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
775 | return 1; | |
776 | ||
777 | if (rlim.rlim_max == 0) | |
778 | { | |
779 | fprintf_unfiltered (gdb_stderr, | |
3e43a32a MS |
780 | _("%s\nUnable to dump core, use `ulimit -c" |
781 | " unlimited' before executing GDB next time.\n"), | |
782 | reason); | |
7991dee7 JK |
783 | return 0; |
784 | } | |
785 | #endif /* HAVE_GETRLIMIT */ | |
786 | ||
787 | return 1; | |
788 | } | |
789 | ||
3c16cced PA |
790 | /* Allow the user to configure the debugger behavior with respect to |
791 | what to do when an internal problem is detected. */ | |
792 | ||
793 | const char internal_problem_ask[] = "ask"; | |
794 | const char internal_problem_yes[] = "yes"; | |
795 | const char internal_problem_no[] = "no"; | |
40478521 | 796 | static const char *const internal_problem_modes[] = |
3c16cced PA |
797 | { |
798 | internal_problem_ask, | |
799 | internal_problem_yes, | |
800 | internal_problem_no, | |
801 | NULL | |
802 | }; | |
3c16cced | 803 | |
581e13c1 | 804 | /* Print a message reporting an internal error/warning. Ask the user |
dec43320 AC |
805 | if they want to continue, dump core, or just exit. Return |
806 | something to indicate a quit. */ | |
c906108c | 807 | |
dec43320 | 808 | struct internal_problem |
c906108c | 809 | { |
dec43320 | 810 | const char *name; |
3c16cced PA |
811 | const char *should_quit; |
812 | const char *should_dump_core; | |
dec43320 AC |
813 | }; |
814 | ||
815 | /* Report a problem, internal to GDB, to the user. Once the problem | |
816 | has been reported, and assuming GDB didn't quit, the caller can | |
817 | either allow execution to resume or throw an error. */ | |
818 | ||
a0b31db1 | 819 | static void ATTRIBUTE_PRINTF (4, 0) |
dec43320 | 820 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 821 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 822 | { |
dec43320 | 823 | static int dejavu; |
375fc983 | 824 | int quit_p; |
7be570e7 | 825 | int dump_core_p; |
714b1282 | 826 | char *reason; |
c906108c | 827 | |
dec43320 | 828 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
829 | { |
830 | static char msg[] = "Recursive internal problem.\n"; | |
5d502164 | 831 | |
714b1282 AC |
832 | switch (dejavu) |
833 | { | |
834 | case 0: | |
835 | dejavu = 1; | |
836 | break; | |
837 | case 1: | |
838 | dejavu = 2; | |
839 | fputs_unfiltered (msg, gdb_stderr); | |
7991dee7 | 840 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
841 | default: |
842 | dejavu = 3; | |
bf1d7d9c JB |
843 | /* Newer GLIBC versions put the warn_unused_result attribute |
844 | on write, but this is one of those rare cases where | |
845 | ignoring the return value is correct. Casting to (void) | |
846 | does not fix this problem. This is the solution suggested | |
847 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
848 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
7991dee7 | 849 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
850 | exit (1); |
851 | } | |
852 | } | |
c906108c | 853 | |
dec43320 | 854 | /* Try to get the message out and at the start of a new line. */ |
4261bedc | 855 | target_terminal_ours (); |
dec43320 AC |
856 | begin_line (); |
857 | ||
714b1282 AC |
858 | /* Create a string containing the full error/warning message. Need |
859 | to call query with this full string, as otherwize the reason | |
860 | (error/warning) and question become separated. Format using a | |
861 | style similar to a compiler error message. Include extra detail | |
862 | so that the user knows that they are living on the edge. */ | |
863 | { | |
864 | char *msg; | |
5d502164 | 865 | |
e623b504 | 866 | msg = xstrvprintf (fmt, ap); |
3e43a32a MS |
867 | reason = xstrprintf ("%s:%d: %s: %s\n" |
868 | "A problem internal to GDB has been detected,\n" | |
869 | "further debugging may prove unreliable.", | |
870 | file, line, problem->name, msg); | |
714b1282 AC |
871 | xfree (msg); |
872 | make_cleanup (xfree, reason); | |
873 | } | |
7be570e7 | 874 | |
3c16cced | 875 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 876 | { |
dec43320 | 877 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
878 | this lessens the likelihood of GDB going into an infinite |
879 | loop. */ | |
e360902b | 880 | if (!confirm) |
26bb68be PP |
881 | { |
882 | /* Emit the message and quit. */ | |
883 | fputs_unfiltered (reason, gdb_stderr); | |
884 | fputs_unfiltered ("\n", gdb_stderr); | |
885 | quit_p = 1; | |
886 | } | |
887 | else | |
888 | quit_p = query (_("%s\nQuit this debugging session? "), reason); | |
dec43320 | 889 | } |
3c16cced PA |
890 | else if (problem->should_quit == internal_problem_yes) |
891 | quit_p = 1; | |
892 | else if (problem->should_quit == internal_problem_no) | |
893 | quit_p = 0; | |
894 | else | |
895 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 896 | |
3c16cced | 897 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 898 | { |
7991dee7 JK |
899 | if (!can_dump_core (reason)) |
900 | dump_core_p = 0; | |
901 | else | |
902 | { | |
903 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
904 | `dropping' so that it is easier to see that something went | |
905 | wrong in GDB. */ | |
906 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason); | |
907 | } | |
dec43320 | 908 | } |
3c16cced | 909 | else if (problem->should_dump_core == internal_problem_yes) |
7991dee7 | 910 | dump_core_p = can_dump_core (reason); |
3c16cced PA |
911 | else if (problem->should_dump_core == internal_problem_no) |
912 | dump_core_p = 0; | |
913 | else | |
914 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 915 | |
375fc983 | 916 | if (quit_p) |
7be570e7 JM |
917 | { |
918 | if (dump_core_p) | |
7991dee7 | 919 | dump_core (); |
375fc983 AC |
920 | else |
921 | exit (1); | |
7be570e7 JM |
922 | } |
923 | else | |
924 | { | |
925 | if (dump_core_p) | |
375fc983 | 926 | { |
9b265ec2 | 927 | #ifdef HAVE_WORKING_FORK |
375fc983 | 928 | if (fork () == 0) |
7991dee7 | 929 | dump_core (); |
9b265ec2 | 930 | #endif |
375fc983 | 931 | } |
7be570e7 | 932 | } |
96baa820 JM |
933 | |
934 | dejavu = 0; | |
dec43320 AC |
935 | } |
936 | ||
937 | static struct internal_problem internal_error_problem = { | |
3c16cced | 938 | "internal-error", internal_problem_ask, internal_problem_ask |
dec43320 AC |
939 | }; |
940 | ||
c25c4a8b | 941 | void |
8731e58e | 942 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
943 | { |
944 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
315a522e | 945 | deprecated_throw_reason (RETURN_ERROR); |
c906108c SS |
946 | } |
947 | ||
c25c4a8b | 948 | void |
8e65ff28 | 949 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
950 | { |
951 | va_list ap; | |
e0627e85 | 952 | |
4ce44c66 | 953 | va_start (ap, string); |
8e65ff28 | 954 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
955 | va_end (ap); |
956 | } | |
957 | ||
dec43320 | 958 | static struct internal_problem internal_warning_problem = { |
3c16cced | 959 | "internal-warning", internal_problem_ask, internal_problem_ask |
dec43320 AC |
960 | }; |
961 | ||
962 | void | |
8731e58e | 963 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
964 | { |
965 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
966 | } | |
967 | ||
968 | void | |
969 | internal_warning (const char *file, int line, const char *string, ...) | |
970 | { | |
971 | va_list ap; | |
e0627e85 | 972 | |
dec43320 AC |
973 | va_start (ap, string); |
974 | internal_vwarning (file, line, string, ap); | |
975 | va_end (ap); | |
976 | } | |
977 | ||
3c16cced PA |
978 | /* Dummy functions to keep add_prefix_cmd happy. */ |
979 | ||
980 | static void | |
981 | set_internal_problem_cmd (char *args, int from_tty) | |
982 | { | |
983 | } | |
984 | ||
985 | static void | |
986 | show_internal_problem_cmd (char *args, int from_tty) | |
987 | { | |
988 | } | |
989 | ||
990 | /* When GDB reports an internal problem (error or warning) it gives | |
991 | the user the opportunity to quit GDB and/or create a core file of | |
992 | the current debug session. This function registers a few commands | |
993 | that make it possible to specify that GDB should always or never | |
994 | quit or create a core file, without asking. The commands look | |
995 | like: | |
996 | ||
997 | maint set PROBLEM-NAME quit ask|yes|no | |
998 | maint show PROBLEM-NAME quit | |
999 | maint set PROBLEM-NAME corefile ask|yes|no | |
1000 | maint show PROBLEM-NAME corefile | |
1001 | ||
1002 | Where PROBLEM-NAME is currently "internal-error" or | |
1003 | "internal-warning". */ | |
1004 | ||
1005 | static void | |
1006 | add_internal_problem_command (struct internal_problem *problem) | |
1007 | { | |
1008 | struct cmd_list_element **set_cmd_list; | |
1009 | struct cmd_list_element **show_cmd_list; | |
1010 | char *set_doc; | |
1011 | char *show_doc; | |
1012 | ||
1013 | set_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
1014 | show_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
1015 | *set_cmd_list = NULL; | |
1016 | *show_cmd_list = NULL; | |
1017 | ||
1018 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
1019 | problem->name); | |
1020 | ||
1021 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
1022 | problem->name); | |
1023 | ||
1024 | add_prefix_cmd ((char*) problem->name, | |
1025 | class_maintenance, set_internal_problem_cmd, set_doc, | |
1026 | set_cmd_list, | |
c4f7c687 MK |
1027 | concat ("maintenance set ", problem->name, " ", |
1028 | (char *) NULL), | |
3c16cced PA |
1029 | 0/*allow-unknown*/, &maintenance_set_cmdlist); |
1030 | ||
1031 | add_prefix_cmd ((char*) problem->name, | |
1032 | class_maintenance, show_internal_problem_cmd, show_doc, | |
1033 | show_cmd_list, | |
c4f7c687 MK |
1034 | concat ("maintenance show ", problem->name, " ", |
1035 | (char *) NULL), | |
3c16cced PA |
1036 | 0/*allow-unknown*/, &maintenance_show_cmdlist); |
1037 | ||
3e43a32a MS |
1038 | set_doc = xstrprintf (_("Set whether GDB should quit " |
1039 | "when an %s is detected"), | |
3c16cced | 1040 | problem->name); |
3e43a32a MS |
1041 | show_doc = xstrprintf (_("Show whether GDB will quit " |
1042 | "when an %s is detected"), | |
3c16cced PA |
1043 | problem->name); |
1044 | add_setshow_enum_cmd ("quit", class_maintenance, | |
1045 | internal_problem_modes, | |
1046 | &problem->should_quit, | |
1047 | set_doc, | |
1048 | show_doc, | |
1049 | NULL, /* help_doc */ | |
1050 | NULL, /* setfunc */ | |
1051 | NULL, /* showfunc */ | |
1052 | set_cmd_list, | |
1053 | show_cmd_list); | |
1054 | ||
1eefb858 TT |
1055 | xfree (set_doc); |
1056 | xfree (show_doc); | |
1057 | ||
3e43a32a MS |
1058 | set_doc = xstrprintf (_("Set whether GDB should create a core " |
1059 | "file of GDB when %s is detected"), | |
3c16cced | 1060 | problem->name); |
3e43a32a MS |
1061 | show_doc = xstrprintf (_("Show whether GDB will create a core " |
1062 | "file of GDB when %s is detected"), | |
3c16cced PA |
1063 | problem->name); |
1064 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
1065 | internal_problem_modes, | |
1066 | &problem->should_dump_core, | |
1067 | set_doc, | |
1068 | show_doc, | |
1069 | NULL, /* help_doc */ | |
1070 | NULL, /* setfunc */ | |
1071 | NULL, /* showfunc */ | |
1072 | set_cmd_list, | |
1073 | show_cmd_list); | |
1eefb858 TT |
1074 | |
1075 | xfree (set_doc); | |
1076 | xfree (show_doc); | |
3c16cced PA |
1077 | } |
1078 | ||
c906108c SS |
1079 | /* Print the system error message for errno, and also mention STRING |
1080 | as the file name for which the error was encountered. | |
1081 | Then return to command level. */ | |
1082 | ||
c25c4a8b | 1083 | void |
6972bc8b | 1084 | perror_with_name (const char *string) |
c906108c SS |
1085 | { |
1086 | char *err; | |
1087 | char *combined; | |
1088 | ||
1089 | err = safe_strerror (errno); | |
1090 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1091 | strcpy (combined, string); | |
1092 | strcat (combined, ": "); | |
1093 | strcat (combined, err); | |
1094 | ||
1095 | /* I understand setting these is a matter of taste. Still, some people | |
1096 | may clear errno but not know about bfd_error. Doing this here is not | |
581e13c1 | 1097 | unreasonable. */ |
c906108c SS |
1098 | bfd_set_error (bfd_error_no_error); |
1099 | errno = 0; | |
1100 | ||
8a3fe4f8 | 1101 | error (_("%s."), combined); |
c906108c SS |
1102 | } |
1103 | ||
1104 | /* Print the system error message for ERRCODE, and also mention STRING | |
1105 | as the file name for which the error was encountered. */ | |
1106 | ||
1107 | void | |
6972bc8b | 1108 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
1109 | { |
1110 | char *err; | |
1111 | char *combined; | |
1112 | ||
1113 | err = safe_strerror (errcode); | |
1114 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1115 | strcpy (combined, string); | |
1116 | strcat (combined, ": "); | |
1117 | strcat (combined, err); | |
1118 | ||
1119 | /* We want anything which was printed on stdout to come out first, before | |
1120 | this message. */ | |
1121 | gdb_flush (gdb_stdout); | |
1122 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
1123 | } | |
1124 | ||
1125 | /* Control C eventually causes this to be called, at a convenient time. */ | |
1126 | ||
1127 | void | |
fba45db2 | 1128 | quit (void) |
c906108c | 1129 | { |
7be570e7 JM |
1130 | #ifdef __MSDOS__ |
1131 | /* No steenking SIGINT will ever be coming our way when the | |
1132 | program is resumed. Don't lie. */ | |
e06e2353 | 1133 | fatal ("Quit"); |
7be570e7 | 1134 | #else |
c906108c | 1135 | if (job_control |
8731e58e AC |
1136 | /* If there is no terminal switching for this target, then we can't |
1137 | possibly get screwed by the lack of job control. */ | |
c906108c | 1138 | || current_target.to_terminal_ours == NULL) |
e06e2353 | 1139 | fatal ("Quit"); |
c906108c | 1140 | else |
e06e2353 | 1141 | fatal ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 1142 | #endif |
c906108c SS |
1143 | } |
1144 | ||
c906108c | 1145 | \f |
c906108c | 1146 | /* Called when a memory allocation fails, with the number of bytes of |
581e13c1 | 1147 | memory requested in SIZE. */ |
c906108c | 1148 | |
c25c4a8b | 1149 | void |
d26e3629 | 1150 | malloc_failure (long size) |
c906108c SS |
1151 | { |
1152 | if (size > 0) | |
1153 | { | |
8e65ff28 | 1154 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 1155 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 1156 | size); |
c906108c SS |
1157 | } |
1158 | else | |
1159 | { | |
e2e0b3e5 | 1160 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
1161 | } |
1162 | } | |
1163 | ||
c906108c SS |
1164 | /* My replacement for the read system call. |
1165 | Used like `read' but keeps going if `read' returns too soon. */ | |
1166 | ||
1167 | int | |
fba45db2 | 1168 | myread (int desc, char *addr, int len) |
c906108c | 1169 | { |
52f0bd74 | 1170 | int val; |
c906108c SS |
1171 | int orglen = len; |
1172 | ||
1173 | while (len > 0) | |
1174 | { | |
1175 | val = read (desc, addr, len); | |
1176 | if (val < 0) | |
1177 | return val; | |
1178 | if (val == 0) | |
1179 | return orglen - len; | |
1180 | len -= val; | |
1181 | addr += val; | |
1182 | } | |
1183 | return orglen; | |
1184 | } | |
d26e3629 | 1185 | |
c906108c | 1186 | void |
aa1ee363 | 1187 | print_spaces (int n, struct ui_file *file) |
c906108c | 1188 | { |
392a587b | 1189 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1190 | } |
1191 | ||
1192 | /* Print a host address. */ | |
1193 | ||
1194 | void | |
ac16bf07 | 1195 | gdb_print_host_address (const void *addr, struct ui_file *stream) |
c906108c | 1196 | { |
ea8992ce | 1197 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 1198 | } |
c906108c | 1199 | \f |
c5aa993b | 1200 | |
dc92e161 TT |
1201 | /* A cleanup function that calls regfree. */ |
1202 | ||
1203 | static void | |
1204 | do_regfree_cleanup (void *r) | |
1205 | { | |
1206 | regfree (r); | |
1207 | } | |
1208 | ||
1209 | /* Create a new cleanup that frees the compiled regular expression R. */ | |
1210 | ||
1211 | struct cleanup * | |
1212 | make_regfree_cleanup (regex_t *r) | |
1213 | { | |
1214 | return make_cleanup (do_regfree_cleanup, r); | |
1215 | } | |
1216 | ||
1217 | /* Return an xmalloc'd error message resulting from a regular | |
1218 | expression compilation failure. */ | |
1219 | ||
1220 | char * | |
1221 | get_regcomp_error (int code, regex_t *rx) | |
1222 | { | |
1223 | size_t length = regerror (code, rx, NULL, 0); | |
1224 | char *result = xmalloc (length); | |
1225 | ||
1226 | regerror (code, rx, result, length); | |
1227 | return result; | |
1228 | } | |
1229 | ||
1230 | \f | |
1231 | ||
981c7f5a | 1232 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 1233 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
1234 | answer is yes, or default the answer to the specified default |
1235 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
1236 | default answer, or '\0' for no default. | |
cbdeadca JJ |
1237 | CTLSTR is the control string and should end in "? ". It should |
1238 | not say how to answer, because we do that. | |
1239 | ARGS are the arguments passed along with the CTLSTR argument to | |
1240 | printf. */ | |
1241 | ||
a0b31db1 | 1242 | static int ATTRIBUTE_PRINTF (1, 0) |
cbdeadca JJ |
1243 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
1244 | { | |
1245 | int answer; | |
1246 | int ans2; | |
1247 | int retval; | |
1248 | int def_value; | |
1249 | char def_answer, not_def_answer; | |
981c7f5a | 1250 | char *y_string, *n_string, *question; |
260c0b2a DE |
1251 | /* Used to add duration we waited for user to respond to |
1252 | prompt_for_continue_wait_time. */ | |
1253 | struct timeval prompt_started, prompt_ended, prompt_delta; | |
cbdeadca JJ |
1254 | |
1255 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
1256 | if (defchar == '\0') |
1257 | { | |
1258 | def_value = 1; | |
1259 | def_answer = 'Y'; | |
1260 | not_def_answer = 'N'; | |
1261 | y_string = "y"; | |
1262 | n_string = "n"; | |
1263 | } | |
1264 | else if (defchar == 'y') | |
cbdeadca JJ |
1265 | { |
1266 | def_value = 1; | |
1267 | def_answer = 'Y'; | |
1268 | not_def_answer = 'N'; | |
1269 | y_string = "[y]"; | |
1270 | n_string = "n"; | |
1271 | } | |
1272 | else | |
1273 | { | |
1274 | def_value = 0; | |
1275 | def_answer = 'N'; | |
1276 | not_def_answer = 'Y'; | |
1277 | y_string = "y"; | |
1278 | n_string = "[n]"; | |
1279 | } | |
1280 | ||
981c7f5a | 1281 | /* Automatically answer the default value if the user did not want |
a502cf95 | 1282 | prompts or the command was issued with the server prefix. */ |
e360902b | 1283 | if (!confirm || server_command) |
981c7f5a DJ |
1284 | return def_value; |
1285 | ||
1286 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 1287 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
1288 | way, important error messages don't get lost when talking to GDB |
1289 | over a pipe. */ | |
c63a1f86 | 1290 | if (! input_from_terminal_p ()) |
981c7f5a DJ |
1291 | { |
1292 | wrap_here (""); | |
1293 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1294 | ||
3e43a32a MS |
1295 | printf_filtered (_("(%s or %s) [answered %c; " |
1296 | "input not from terminal]\n"), | |
981c7f5a DJ |
1297 | y_string, n_string, def_answer); |
1298 | gdb_flush (gdb_stdout); | |
1299 | ||
1300 | return def_value; | |
1301 | } | |
1302 | ||
9a4105ab | 1303 | if (deprecated_query_hook) |
cbdeadca | 1304 | { |
9a4105ab | 1305 | return deprecated_query_hook (ctlstr, args); |
cbdeadca JJ |
1306 | } |
1307 | ||
981c7f5a DJ |
1308 | /* Format the question outside of the loop, to avoid reusing args. */ |
1309 | question = xstrvprintf (ctlstr, args); | |
1310 | ||
260c0b2a DE |
1311 | /* Used for calculating time spend waiting for user. */ |
1312 | gettimeofday (&prompt_started, NULL); | |
1313 | ||
cbdeadca JJ |
1314 | while (1) |
1315 | { | |
581e13c1 | 1316 | wrap_here (""); /* Flush any buffered output. */ |
cbdeadca JJ |
1317 | gdb_flush (gdb_stdout); |
1318 | ||
1319 | if (annotation_level > 1) | |
a3f17187 | 1320 | printf_filtered (("\n\032\032pre-query\n")); |
cbdeadca | 1321 | |
981c7f5a | 1322 | fputs_filtered (question, gdb_stdout); |
a3f17187 | 1323 | printf_filtered (_("(%s or %s) "), y_string, n_string); |
cbdeadca JJ |
1324 | |
1325 | if (annotation_level > 1) | |
a3f17187 | 1326 | printf_filtered (("\n\032\032query\n")); |
cbdeadca JJ |
1327 | |
1328 | wrap_here (""); | |
1329 | gdb_flush (gdb_stdout); | |
1330 | ||
1331 | answer = fgetc (stdin); | |
8626589c JB |
1332 | |
1333 | /* We expect fgetc to block until a character is read. But | |
1334 | this may not be the case if the terminal was opened with | |
1335 | the NONBLOCK flag. In that case, if there is nothing to | |
1336 | read on stdin, fgetc returns EOF, but also sets the error | |
1337 | condition flag on stdin and errno to EAGAIN. With a true | |
1338 | EOF, stdin's error condition flag is not set. | |
1339 | ||
1340 | A situation where this behavior was observed is a pseudo | |
1341 | terminal on AIX. */ | |
1342 | while (answer == EOF && ferror (stdin) && errno == EAGAIN) | |
1343 | { | |
1344 | /* Not a real EOF. Wait a little while and try again until | |
1345 | we read something. */ | |
1346 | clearerr (stdin); | |
1347 | gdb_usleep (10000); | |
1348 | answer = fgetc (stdin); | |
1349 | } | |
1350 | ||
cbdeadca JJ |
1351 | clearerr (stdin); /* in case of C-d */ |
1352 | if (answer == EOF) /* C-d */ | |
1353 | { | |
fa3fd85b | 1354 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
1355 | retval = def_value; |
1356 | break; | |
1357 | } | |
581e13c1 | 1358 | /* Eat rest of input line, to EOF or newline. */ |
cbdeadca JJ |
1359 | if (answer != '\n') |
1360 | do | |
1361 | { | |
1362 | ans2 = fgetc (stdin); | |
1363 | clearerr (stdin); | |
1364 | } | |
1365 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); | |
1366 | ||
1367 | if (answer >= 'a') | |
1368 | answer -= 040; | |
1369 | /* Check answer. For the non-default, the user must specify | |
1370 | the non-default explicitly. */ | |
1371 | if (answer == not_def_answer) | |
1372 | { | |
1373 | retval = !def_value; | |
1374 | break; | |
1375 | } | |
981c7f5a DJ |
1376 | /* Otherwise, if a default was specified, the user may either |
1377 | specify the required input or have it default by entering | |
1378 | nothing. */ | |
1379 | if (answer == def_answer | |
1380 | || (defchar != '\0' && | |
1381 | (answer == '\n' || answer == '\r' || answer == EOF))) | |
cbdeadca JJ |
1382 | { |
1383 | retval = def_value; | |
1384 | break; | |
1385 | } | |
1386 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 1387 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
1388 | y_string, n_string); |
1389 | } | |
1390 | ||
260c0b2a DE |
1391 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
1392 | gettimeofday (&prompt_ended, NULL); | |
1393 | timeval_sub (&prompt_delta, &prompt_ended, &prompt_started); | |
1394 | timeval_add (&prompt_for_continue_wait_time, | |
1395 | &prompt_for_continue_wait_time, &prompt_delta); | |
1396 | ||
981c7f5a | 1397 | xfree (question); |
cbdeadca | 1398 | if (annotation_level > 1) |
a3f17187 | 1399 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
1400 | return retval; |
1401 | } | |
1402 | \f | |
1403 | ||
1404 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1405 | answer is yes, or 0 if answer is defaulted. | |
1406 | Takes three args which are given to printf to print the question. | |
1407 | The first, a control string, should end in "? ". | |
1408 | It should not say how to answer, because we do that. */ | |
1409 | ||
1410 | int | |
1411 | nquery (const char *ctlstr, ...) | |
1412 | { | |
1413 | va_list args; | |
899500d6 | 1414 | int ret; |
cbdeadca JJ |
1415 | |
1416 | va_start (args, ctlstr); | |
899500d6 | 1417 | ret = defaulted_query (ctlstr, 'n', args); |
cbdeadca | 1418 | va_end (args); |
899500d6 | 1419 | return ret; |
cbdeadca JJ |
1420 | } |
1421 | ||
1422 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1423 | answer is yes, or 1 if answer is defaulted. | |
1424 | Takes three args which are given to printf to print the question. | |
1425 | The first, a control string, should end in "? ". | |
1426 | It should not say how to answer, because we do that. */ | |
1427 | ||
1428 | int | |
1429 | yquery (const char *ctlstr, ...) | |
1430 | { | |
1431 | va_list args; | |
899500d6 | 1432 | int ret; |
cbdeadca JJ |
1433 | |
1434 | va_start (args, ctlstr); | |
899500d6 | 1435 | ret = defaulted_query (ctlstr, 'y', args); |
cbdeadca | 1436 | va_end (args); |
899500d6 | 1437 | return ret; |
cbdeadca JJ |
1438 | } |
1439 | ||
981c7f5a DJ |
1440 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
1441 | Takes three args which are given to printf to print the question. | |
1442 | The first, a control string, should end in "? ". | |
1443 | It should not say how to answer, because we do that. */ | |
1444 | ||
1445 | int | |
1446 | query (const char *ctlstr, ...) | |
1447 | { | |
1448 | va_list args; | |
899500d6 | 1449 | int ret; |
981c7f5a DJ |
1450 | |
1451 | va_start (args, ctlstr); | |
899500d6 | 1452 | ret = defaulted_query (ctlstr, '\0', args); |
981c7f5a | 1453 | va_end (args); |
899500d6 | 1454 | return ret; |
981c7f5a DJ |
1455 | } |
1456 | ||
6c7a06a3 TT |
1457 | /* A helper for parse_escape that converts a host character to a |
1458 | target character. C is the host character. If conversion is | |
1459 | possible, then the target character is stored in *TARGET_C and the | |
1460 | function returns 1. Otherwise, the function returns 0. */ | |
1461 | ||
1462 | static int | |
f870a310 | 1463 | host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c) |
234b45d4 | 1464 | { |
6c7a06a3 TT |
1465 | struct obstack host_data; |
1466 | char the_char = c; | |
1467 | struct cleanup *cleanups; | |
1468 | int result = 0; | |
234b45d4 | 1469 | |
6c7a06a3 TT |
1470 | obstack_init (&host_data); |
1471 | cleanups = make_cleanup_obstack_free (&host_data); | |
234b45d4 | 1472 | |
f870a310 | 1473 | convert_between_encodings (target_charset (gdbarch), host_charset (), |
ac91cd70 PA |
1474 | (gdb_byte *) &the_char, 1, 1, |
1475 | &host_data, translit_none); | |
6c7a06a3 TT |
1476 | |
1477 | if (obstack_object_size (&host_data) == 1) | |
1478 | { | |
1479 | result = 1; | |
1480 | *target_c = *(char *) obstack_base (&host_data); | |
1481 | } | |
1482 | ||
1483 | do_cleanups (cleanups); | |
1484 | return result; | |
234b45d4 KB |
1485 | } |
1486 | ||
c906108c SS |
1487 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1488 | containing a pointer to the string to parse. That pointer | |
1489 | should point to the character after the \. That pointer | |
1490 | is updated past the characters we use. The value of the | |
1491 | escape sequence is returned. | |
1492 | ||
1493 | A negative value means the sequence \ newline was seen, | |
1494 | which is supposed to be equivalent to nothing at all. | |
1495 | ||
1496 | If \ is followed by a null character, we return a negative | |
1497 | value and leave the string pointer pointing at the null character. | |
1498 | ||
1499 | If \ is followed by 000, we return 0 and leave the string pointer | |
1500 | after the zeros. A value of 0 does not mean end of string. */ | |
1501 | ||
1502 | int | |
f870a310 | 1503 | parse_escape (struct gdbarch *gdbarch, char **string_ptr) |
c906108c | 1504 | { |
581e13c1 | 1505 | int target_char = -2; /* Initialize to avoid GCC warnings. */ |
52f0bd74 | 1506 | int c = *(*string_ptr)++; |
e0627e85 | 1507 | |
6c7a06a3 TT |
1508 | switch (c) |
1509 | { | |
8731e58e AC |
1510 | case '\n': |
1511 | return -2; | |
1512 | case 0: | |
1513 | (*string_ptr)--; | |
1514 | return 0; | |
8731e58e AC |
1515 | |
1516 | case '0': | |
1517 | case '1': | |
1518 | case '2': | |
1519 | case '3': | |
1520 | case '4': | |
1521 | case '5': | |
1522 | case '6': | |
1523 | case '7': | |
1524 | { | |
6c7a06a3 | 1525 | int i = host_hex_value (c); |
aa1ee363 | 1526 | int count = 0; |
8731e58e AC |
1527 | while (++count < 3) |
1528 | { | |
5cb316ef | 1529 | c = (**string_ptr); |
6c7a06a3 | 1530 | if (isdigit (c) && c != '8' && c != '9') |
8731e58e | 1531 | { |
5cb316ef | 1532 | (*string_ptr)++; |
8731e58e | 1533 | i *= 8; |
6c7a06a3 | 1534 | i += host_hex_value (c); |
8731e58e AC |
1535 | } |
1536 | else | |
1537 | { | |
8731e58e AC |
1538 | break; |
1539 | } | |
1540 | } | |
1541 | return i; | |
1542 | } | |
6c7a06a3 TT |
1543 | |
1544 | case 'a': | |
1545 | c = '\a'; | |
1546 | break; | |
1547 | case 'b': | |
1548 | c = '\b'; | |
1549 | break; | |
1550 | case 'f': | |
1551 | c = '\f'; | |
1552 | break; | |
1553 | case 'n': | |
1554 | c = '\n'; | |
1555 | break; | |
1556 | case 'r': | |
1557 | c = '\r'; | |
1558 | break; | |
1559 | case 't': | |
1560 | c = '\t'; | |
1561 | break; | |
1562 | case 'v': | |
1563 | c = '\v'; | |
1564 | break; | |
1565 | ||
1566 | default: | |
1567 | break; | |
1568 | } | |
1569 | ||
f870a310 | 1570 | if (!host_char_to_target (gdbarch, c, &target_char)) |
3351ea09 JB |
1571 | error (_("The escape sequence `\\%c' is equivalent to plain `%c'," |
1572 | " which has no equivalent\nin the `%s' character set."), | |
905b671b | 1573 | c, c, target_charset (gdbarch)); |
6c7a06a3 | 1574 | return target_char; |
c906108c SS |
1575 | } |
1576 | \f | |
1577 | /* Print the character C on STREAM as part of the contents of a literal | |
1578 | string whose delimiter is QUOTER. Note that this routine should only | |
1579 | be call for printing things which are independent of the language | |
581e13c1 | 1580 | of the program being debugged. */ |
c906108c | 1581 | |
43e526b9 | 1582 | static void |
74f832da | 1583 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
bee0189a DJ |
1584 | void (*do_fprintf) (struct ui_file *, const char *, ...) |
1585 | ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter) | |
c906108c | 1586 | { |
c906108c SS |
1587 | c &= 0xFF; /* Avoid sign bit follies */ |
1588 | ||
c5aa993b JM |
1589 | if (c < 0x20 || /* Low control chars */ |
1590 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1591 | (sevenbit_strings && c >= 0x80)) | |
1592 | { /* high order bit set */ | |
1593 | switch (c) | |
1594 | { | |
1595 | case '\n': | |
43e526b9 | 1596 | do_fputs ("\\n", stream); |
c5aa993b JM |
1597 | break; |
1598 | case '\b': | |
43e526b9 | 1599 | do_fputs ("\\b", stream); |
c5aa993b JM |
1600 | break; |
1601 | case '\t': | |
43e526b9 | 1602 | do_fputs ("\\t", stream); |
c5aa993b JM |
1603 | break; |
1604 | case '\f': | |
43e526b9 | 1605 | do_fputs ("\\f", stream); |
c5aa993b JM |
1606 | break; |
1607 | case '\r': | |
43e526b9 | 1608 | do_fputs ("\\r", stream); |
c5aa993b JM |
1609 | break; |
1610 | case '\033': | |
43e526b9 | 1611 | do_fputs ("\\e", stream); |
c5aa993b JM |
1612 | break; |
1613 | case '\007': | |
43e526b9 | 1614 | do_fputs ("\\a", stream); |
c5aa993b JM |
1615 | break; |
1616 | default: | |
43e526b9 | 1617 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1618 | break; |
1619 | } | |
1620 | } | |
1621 | else | |
1622 | { | |
1623 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1624 | do_fputs ("\\", stream); |
1625 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1626 | } |
c906108c | 1627 | } |
43e526b9 JM |
1628 | |
1629 | /* Print the character C on STREAM as part of the contents of a | |
1630 | literal string whose delimiter is QUOTER. Note that these routines | |
1631 | should only be call for printing things which are independent of | |
581e13c1 | 1632 | the language of the program being debugged. */ |
43e526b9 JM |
1633 | |
1634 | void | |
fba45db2 | 1635 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1636 | { |
1637 | while (*str) | |
1638 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1639 | } | |
1640 | ||
1641 | void | |
fba45db2 | 1642 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1643 | { |
1644 | while (*str) | |
1645 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1646 | } | |
1647 | ||
0876f84a DJ |
1648 | void |
1649 | fputstrn_filtered (const char *str, int n, int quoter, | |
1650 | struct ui_file *stream) | |
1651 | { | |
1652 | int i; | |
e0627e85 | 1653 | |
0876f84a DJ |
1654 | for (i = 0; i < n; i++) |
1655 | printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter); | |
1656 | } | |
1657 | ||
43e526b9 | 1658 | void |
8731e58e AC |
1659 | fputstrn_unfiltered (const char *str, int n, int quoter, |
1660 | struct ui_file *stream) | |
43e526b9 JM |
1661 | { |
1662 | int i; | |
5d502164 | 1663 | |
43e526b9 JM |
1664 | for (i = 0; i < n; i++) |
1665 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1666 | } | |
c906108c | 1667 | \f |
c5aa993b | 1668 | |
c906108c SS |
1669 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1670 | static unsigned int lines_per_page; | |
920d2a44 AC |
1671 | static void |
1672 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1673 | struct cmd_list_element *c, const char *value) | |
1674 | { | |
3e43a32a MS |
1675 | fprintf_filtered (file, |
1676 | _("Number of lines gdb thinks are in a page is %s.\n"), | |
920d2a44 AC |
1677 | value); |
1678 | } | |
eb0d3137 | 1679 | |
cbfbd72a | 1680 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1681 | static unsigned int chars_per_line; |
920d2a44 AC |
1682 | static void |
1683 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1684 | struct cmd_list_element *c, const char *value) | |
1685 | { | |
3e43a32a MS |
1686 | fprintf_filtered (file, |
1687 | _("Number of characters gdb thinks " | |
1688 | "are in a line is %s.\n"), | |
920d2a44 AC |
1689 | value); |
1690 | } | |
eb0d3137 | 1691 | |
c906108c SS |
1692 | /* Current count of lines printed on this page, chars on this line. */ |
1693 | static unsigned int lines_printed, chars_printed; | |
1694 | ||
1695 | /* Buffer and start column of buffered text, for doing smarter word- | |
1696 | wrapping. When someone calls wrap_here(), we start buffering output | |
1697 | that comes through fputs_filtered(). If we see a newline, we just | |
1698 | spit it out and forget about the wrap_here(). If we see another | |
1699 | wrap_here(), we spit it out and remember the newer one. If we see | |
1700 | the end of the line, we spit out a newline, the indent, and then | |
1701 | the buffered output. */ | |
1702 | ||
1703 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1704 | are waiting to be output (they have already been counted in chars_printed). | |
1705 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1706 | static char *wrap_buffer; | |
1707 | ||
1708 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1709 | static char *wrap_pointer; | |
1710 | ||
1711 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1712 | is non-zero. */ | |
1713 | static char *wrap_indent; | |
1714 | ||
1715 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1716 | is not in effect. */ | |
1717 | static int wrap_column; | |
c906108c | 1718 | \f |
c5aa993b | 1719 | |
eb0d3137 MK |
1720 | /* Inialize the number of lines per page and chars per line. */ |
1721 | ||
c906108c | 1722 | void |
fba45db2 | 1723 | init_page_info (void) |
c906108c | 1724 | { |
5da1313b JK |
1725 | if (batch_flag) |
1726 | { | |
1727 | lines_per_page = UINT_MAX; | |
1728 | chars_per_line = UINT_MAX; | |
1729 | } | |
1730 | else | |
c906108c | 1731 | #if defined(TUI) |
5ecb1806 | 1732 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1733 | #endif |
1734 | { | |
eb0d3137 | 1735 | int rows, cols; |
c906108c | 1736 | |
ec145965 EZ |
1737 | #if defined(__GO32__) |
1738 | rows = ScreenRows (); | |
1739 | cols = ScreenCols (); | |
1740 | lines_per_page = rows; | |
1741 | chars_per_line = cols; | |
1742 | #else | |
eb0d3137 MK |
1743 | /* Make sure Readline has initialized its terminal settings. */ |
1744 | rl_reset_terminal (NULL); | |
c906108c | 1745 | |
eb0d3137 MK |
1746 | /* Get the screen size from Readline. */ |
1747 | rl_get_screen_size (&rows, &cols); | |
1748 | lines_per_page = rows; | |
1749 | chars_per_line = cols; | |
c906108c | 1750 | |
eb0d3137 MK |
1751 | /* Readline should have fetched the termcap entry for us. */ |
1752 | if (tgetnum ("li") < 0 || getenv ("EMACS")) | |
1753 | { | |
1754 | /* The number of lines per page is not mentioned in the | |
1755 | terminal description. This probably means that paging is | |
1756 | not useful (e.g. emacs shell window), so disable paging. */ | |
1757 | lines_per_page = UINT_MAX; | |
1758 | } | |
c906108c | 1759 | |
c906108c | 1760 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1761 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1762 | lines_per_page = UINT_MAX; |
eb0d3137 | 1763 | #endif |
ec145965 | 1764 | } |
eb0d3137 MK |
1765 | |
1766 | set_screen_size (); | |
c5aa993b | 1767 | set_width (); |
c906108c SS |
1768 | } |
1769 | ||
5da1313b JK |
1770 | /* Helper for make_cleanup_restore_page_info. */ |
1771 | ||
1772 | static void | |
1773 | do_restore_page_info_cleanup (void *arg) | |
1774 | { | |
1775 | set_screen_size (); | |
1776 | set_width (); | |
1777 | } | |
1778 | ||
1779 | /* Provide cleanup for restoring the terminal size. */ | |
1780 | ||
1781 | struct cleanup * | |
1782 | make_cleanup_restore_page_info (void) | |
1783 | { | |
1784 | struct cleanup *back_to; | |
1785 | ||
1786 | back_to = make_cleanup (do_restore_page_info_cleanup, NULL); | |
1787 | make_cleanup_restore_uinteger (&lines_per_page); | |
1788 | make_cleanup_restore_uinteger (&chars_per_line); | |
1789 | ||
1790 | return back_to; | |
1791 | } | |
1792 | ||
1793 | /* Temporarily set BATCH_FLAG and the associated unlimited terminal size. | |
1794 | Provide cleanup for restoring the original state. */ | |
1795 | ||
1796 | struct cleanup * | |
1797 | set_batch_flag_and_make_cleanup_restore_page_info (void) | |
1798 | { | |
1799 | struct cleanup *back_to = make_cleanup_restore_page_info (); | |
1800 | ||
1801 | make_cleanup_restore_integer (&batch_flag); | |
1802 | batch_flag = 1; | |
1803 | init_page_info (); | |
1804 | ||
1805 | return back_to; | |
1806 | } | |
1807 | ||
eb0d3137 MK |
1808 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1809 | ||
1810 | static void | |
1811 | set_screen_size (void) | |
1812 | { | |
1813 | int rows = lines_per_page; | |
1814 | int cols = chars_per_line; | |
1815 | ||
1816 | if (rows <= 0) | |
1817 | rows = INT_MAX; | |
1818 | ||
1819 | if (cols <= 0) | |
0caa462c | 1820 | cols = INT_MAX; |
eb0d3137 MK |
1821 | |
1822 | /* Update Readline's idea of the terminal size. */ | |
1823 | rl_set_screen_size (rows, cols); | |
1824 | } | |
1825 | ||
1826 | /* Reinitialize WRAP_BUFFER according to the current value of | |
1827 | CHARS_PER_LINE. */ | |
1828 | ||
c906108c | 1829 | static void |
fba45db2 | 1830 | set_width (void) |
c906108c SS |
1831 | { |
1832 | if (chars_per_line == 0) | |
c5aa993b | 1833 | init_page_info (); |
c906108c SS |
1834 | |
1835 | if (!wrap_buffer) | |
1836 | { | |
1837 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1838 | wrap_buffer[0] = '\0'; | |
1839 | } | |
1840 | else | |
1841 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 1842 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
1843 | } |
1844 | ||
c5aa993b | 1845 | static void |
fba45db2 | 1846 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1847 | { |
eb0d3137 | 1848 | set_screen_size (); |
c906108c SS |
1849 | set_width (); |
1850 | } | |
1851 | ||
eb0d3137 MK |
1852 | static void |
1853 | set_height_command (char *args, int from_tty, struct cmd_list_element *c) | |
1854 | { | |
1855 | set_screen_size (); | |
1856 | } | |
1857 | ||
c906108c SS |
1858 | /* Wait, so the user can read what's on the screen. Prompt the user |
1859 | to continue by pressing RETURN. */ | |
1860 | ||
1861 | static void | |
fba45db2 | 1862 | prompt_for_continue (void) |
c906108c SS |
1863 | { |
1864 | char *ignore; | |
1865 | char cont_prompt[120]; | |
260c0b2a DE |
1866 | /* Used to add duration we waited for user to respond to |
1867 | prompt_for_continue_wait_time. */ | |
1868 | struct timeval prompt_started, prompt_ended, prompt_delta; | |
1869 | ||
1870 | gettimeofday (&prompt_started, NULL); | |
c906108c SS |
1871 | |
1872 | if (annotation_level > 1) | |
a3f17187 | 1873 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
1874 | |
1875 | strcpy (cont_prompt, | |
1876 | "---Type <return> to continue, or q <return> to quit---"); | |
1877 | if (annotation_level > 1) | |
1878 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1879 | ||
1880 | /* We must do this *before* we call gdb_readline, else it will eventually | |
1881 | call us -- thinking that we're trying to print beyond the end of the | |
1882 | screen. */ | |
1883 | reinitialize_more_filter (); | |
1884 | ||
1885 | immediate_quit++; | |
522002f9 | 1886 | QUIT; |
c906108c SS |
1887 | /* On a real operating system, the user can quit with SIGINT. |
1888 | But not on GO32. | |
1889 | ||
1890 | 'q' is provided on all systems so users don't have to change habits | |
1891 | from system to system, and because telling them what to do in | |
1892 | the prompt is more user-friendly than expecting them to think of | |
1893 | SIGINT. */ | |
1894 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
1895 | whereas control-C to gdb_readline will cause the user to get dumped | |
1896 | out to DOS. */ | |
b4f5539f | 1897 | ignore = gdb_readline_wrapper (cont_prompt); |
c906108c | 1898 | |
260c0b2a DE |
1899 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
1900 | gettimeofday (&prompt_ended, NULL); | |
1901 | timeval_sub (&prompt_delta, &prompt_ended, &prompt_started); | |
1902 | timeval_add (&prompt_for_continue_wait_time, | |
1903 | &prompt_for_continue_wait_time, &prompt_delta); | |
1904 | ||
c906108c | 1905 | if (annotation_level > 1) |
a3f17187 | 1906 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c SS |
1907 | |
1908 | if (ignore) | |
1909 | { | |
1910 | char *p = ignore; | |
5d502164 | 1911 | |
c906108c SS |
1912 | while (*p == ' ' || *p == '\t') |
1913 | ++p; | |
1914 | if (p[0] == 'q') | |
522002f9 | 1915 | quit (); |
b8c9b27d | 1916 | xfree (ignore); |
c906108c SS |
1917 | } |
1918 | immediate_quit--; | |
1919 | ||
1920 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1921 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1922 | reinitialize_more_filter (); | |
1923 | ||
581e13c1 | 1924 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ |
c906108c SS |
1925 | } |
1926 | ||
1927 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
1928 | ||
1929 | void | |
fba45db2 | 1930 | reinitialize_more_filter (void) |
c906108c SS |
1931 | { |
1932 | lines_printed = 0; | |
1933 | chars_printed = 0; | |
1934 | } | |
1935 | ||
1936 | /* Indicate that if the next sequence of characters overflows the line, | |
581e13c1 | 1937 | a newline should be inserted here rather than when it hits the end. |
c906108c SS |
1938 | If INDENT is non-null, it is a string to be printed to indent the |
1939 | wrapped part on the next line. INDENT must remain accessible until | |
1940 | the next call to wrap_here() or until a newline is printed through | |
1941 | fputs_filtered(). | |
1942 | ||
1943 | If the line is already overfull, we immediately print a newline and | |
1944 | the indentation, and disable further wrapping. | |
1945 | ||
1946 | If we don't know the width of lines, but we know the page height, | |
1947 | we must not wrap words, but should still keep track of newlines | |
1948 | that were explicitly printed. | |
1949 | ||
1950 | INDENT should not contain tabs, as that will mess up the char count | |
1951 | on the next line. FIXME. | |
1952 | ||
1953 | This routine is guaranteed to force out any output which has been | |
1954 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1955 | used to force out output from the wrap_buffer. */ | |
1956 | ||
1957 | void | |
fba45db2 | 1958 | wrap_here (char *indent) |
c906108c | 1959 | { |
581e13c1 | 1960 | /* This should have been allocated, but be paranoid anyway. */ |
c906108c | 1961 | if (!wrap_buffer) |
3e43a32a MS |
1962 | internal_error (__FILE__, __LINE__, |
1963 | _("failed internal consistency check")); | |
c906108c SS |
1964 | |
1965 | if (wrap_buffer[0]) | |
1966 | { | |
1967 | *wrap_pointer = '\0'; | |
1968 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1969 | } | |
1970 | wrap_pointer = wrap_buffer; | |
1971 | wrap_buffer[0] = '\0'; | |
3e43a32a | 1972 | if (chars_per_line == UINT_MAX) /* No line overflow checking. */ |
c906108c SS |
1973 | { |
1974 | wrap_column = 0; | |
1975 | } | |
1976 | else if (chars_printed >= chars_per_line) | |
1977 | { | |
1978 | puts_filtered ("\n"); | |
1979 | if (indent != NULL) | |
1980 | puts_filtered (indent); | |
1981 | wrap_column = 0; | |
1982 | } | |
1983 | else | |
1984 | { | |
1985 | wrap_column = chars_printed; | |
1986 | if (indent == NULL) | |
1987 | wrap_indent = ""; | |
1988 | else | |
1989 | wrap_indent = indent; | |
1990 | } | |
1991 | } | |
1992 | ||
4a351cef | 1993 | /* Print input string to gdb_stdout, filtered, with wrap, |
581e13c1 | 1994 | arranging strings in columns of n chars. String can be |
4a351cef AF |
1995 | right or left justified in the column. Never prints |
1996 | trailing spaces. String should never be longer than | |
1997 | width. FIXME: this could be useful for the EXAMINE | |
581e13c1 | 1998 | command, which currently doesn't tabulate very well. */ |
4a351cef AF |
1999 | |
2000 | void | |
2001 | puts_filtered_tabular (char *string, int width, int right) | |
2002 | { | |
2003 | int spaces = 0; | |
2004 | int stringlen; | |
2005 | char *spacebuf; | |
2006 | ||
2007 | gdb_assert (chars_per_line > 0); | |
2008 | if (chars_per_line == UINT_MAX) | |
2009 | { | |
2010 | fputs_filtered (string, gdb_stdout); | |
2011 | fputs_filtered ("\n", gdb_stdout); | |
2012 | return; | |
2013 | } | |
2014 | ||
2015 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
2016 | fputs_filtered ("\n", gdb_stdout); | |
2017 | ||
2018 | if (width >= chars_per_line) | |
2019 | width = chars_per_line - 1; | |
2020 | ||
2021 | stringlen = strlen (string); | |
2022 | ||
2023 | if (chars_printed > 0) | |
2024 | spaces = width - (chars_printed - 1) % width - 1; | |
2025 | if (right) | |
2026 | spaces += width - stringlen; | |
2027 | ||
2028 | spacebuf = alloca (spaces + 1); | |
2029 | spacebuf[spaces] = '\0'; | |
2030 | while (spaces--) | |
2031 | spacebuf[spaces] = ' '; | |
2032 | ||
2033 | fputs_filtered (spacebuf, gdb_stdout); | |
2034 | fputs_filtered (string, gdb_stdout); | |
2035 | } | |
2036 | ||
2037 | ||
c906108c | 2038 | /* Ensure that whatever gets printed next, using the filtered output |
581e13c1 | 2039 | commands, starts at the beginning of the line. I.e. if there is |
c906108c | 2040 | any pending output for the current line, flush it and start a new |
581e13c1 | 2041 | line. Otherwise do nothing. */ |
c906108c SS |
2042 | |
2043 | void | |
fba45db2 | 2044 | begin_line (void) |
c906108c SS |
2045 | { |
2046 | if (chars_printed > 0) | |
2047 | { | |
2048 | puts_filtered ("\n"); | |
2049 | } | |
2050 | } | |
2051 | ||
ac9a91a7 | 2052 | |
c906108c SS |
2053 | /* Like fputs but if FILTER is true, pause after every screenful. |
2054 | ||
2055 | Regardless of FILTER can wrap at points other than the final | |
2056 | character of a line. | |
2057 | ||
2058 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
2059 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
2060 | anything. | |
2061 | ||
2062 | Note that a longjmp to top level may occur in this routine (only if | |
2063 | FILTER is true) (since prompt_for_continue may do so) so this | |
2064 | routine should not be called when cleanups are not in place. */ | |
2065 | ||
2066 | static void | |
fba45db2 KB |
2067 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
2068 | int filter) | |
c906108c SS |
2069 | { |
2070 | const char *lineptr; | |
2071 | ||
2072 | if (linebuffer == 0) | |
2073 | return; | |
2074 | ||
2075 | /* Don't do any filtering if it is disabled. */ | |
390a8aca | 2076 | if (stream != gdb_stdout |
b2e7f004 JK |
2077 | || !pagination_enabled |
2078 | || batch_flag | |
390a8aca | 2079 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) |
58dadb1b | 2080 | || top_level_interpreter () == NULL |
390a8aca | 2081 | || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) |
c906108c SS |
2082 | { |
2083 | fputs_unfiltered (linebuffer, stream); | |
2084 | return; | |
2085 | } | |
2086 | ||
2087 | /* Go through and output each character. Show line extension | |
2088 | when this is necessary; prompt user for new page when this is | |
2089 | necessary. */ | |
c5aa993b | 2090 | |
c906108c SS |
2091 | lineptr = linebuffer; |
2092 | while (*lineptr) | |
2093 | { | |
2094 | /* Possible new page. */ | |
8731e58e | 2095 | if (filter && (lines_printed >= lines_per_page - 1)) |
c906108c SS |
2096 | prompt_for_continue (); |
2097 | ||
2098 | while (*lineptr && *lineptr != '\n') | |
2099 | { | |
2100 | /* Print a single line. */ | |
2101 | if (*lineptr == '\t') | |
2102 | { | |
2103 | if (wrap_column) | |
2104 | *wrap_pointer++ = '\t'; | |
2105 | else | |
2106 | fputc_unfiltered ('\t', stream); | |
2107 | /* Shifting right by 3 produces the number of tab stops | |
2108 | we have already passed, and then adding one and | |
c5aa993b | 2109 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
2110 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
2111 | lineptr++; | |
2112 | } | |
2113 | else | |
2114 | { | |
2115 | if (wrap_column) | |
2116 | *wrap_pointer++ = *lineptr; | |
2117 | else | |
c5aa993b | 2118 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
2119 | chars_printed++; |
2120 | lineptr++; | |
2121 | } | |
c5aa993b | 2122 | |
c906108c SS |
2123 | if (chars_printed >= chars_per_line) |
2124 | { | |
2125 | unsigned int save_chars = chars_printed; | |
2126 | ||
2127 | chars_printed = 0; | |
2128 | lines_printed++; | |
2129 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
2130 | if chars_per_line is right, we probably just overflowed |
2131 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
2132 | if (wrap_column) |
2133 | fputc_unfiltered ('\n', stream); | |
2134 | ||
2135 | /* Possible new page. */ | |
2136 | if (lines_printed >= lines_per_page - 1) | |
2137 | prompt_for_continue (); | |
2138 | ||
581e13c1 | 2139 | /* Now output indentation and wrapped string. */ |
c906108c SS |
2140 | if (wrap_column) |
2141 | { | |
2142 | fputs_unfiltered (wrap_indent, stream); | |
581e13c1 MS |
2143 | *wrap_pointer = '\0'; /* Null-terminate saved stuff, */ |
2144 | fputs_unfiltered (wrap_buffer, stream); /* and eject it. */ | |
c906108c SS |
2145 | /* FIXME, this strlen is what prevents wrap_indent from |
2146 | containing tabs. However, if we recurse to print it | |
2147 | and count its chars, we risk trouble if wrap_indent is | |
581e13c1 | 2148 | longer than (the user settable) chars_per_line. |
c906108c SS |
2149 | Note also that this can set chars_printed > chars_per_line |
2150 | if we are printing a long string. */ | |
2151 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 2152 | + (save_chars - wrap_column); |
c906108c SS |
2153 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
2154 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
2155 | wrap_column = 0; /* And disable fancy wrap */ |
2156 | } | |
c906108c SS |
2157 | } |
2158 | } | |
2159 | ||
2160 | if (*lineptr == '\n') | |
2161 | { | |
2162 | chars_printed = 0; | |
3e43a32a MS |
2163 | wrap_here ((char *) 0); /* Spit out chars, cancel |
2164 | further wraps. */ | |
c906108c SS |
2165 | lines_printed++; |
2166 | fputc_unfiltered ('\n', stream); | |
2167 | lineptr++; | |
2168 | } | |
2169 | } | |
2170 | } | |
2171 | ||
2172 | void | |
fba45db2 | 2173 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
2174 | { |
2175 | fputs_maybe_filtered (linebuffer, stream, 1); | |
2176 | } | |
2177 | ||
2178 | int | |
fba45db2 | 2179 | putchar_unfiltered (int c) |
c906108c | 2180 | { |
11cf8741 | 2181 | char buf = c; |
e0627e85 | 2182 | |
d9fcf2fb | 2183 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
2184 | return c; |
2185 | } | |
2186 | ||
d1f4cff8 AC |
2187 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
2188 | May return nonlocally. */ | |
2189 | ||
2190 | int | |
2191 | putchar_filtered (int c) | |
2192 | { | |
2193 | return fputc_filtered (c, gdb_stdout); | |
2194 | } | |
2195 | ||
c906108c | 2196 | int |
fba45db2 | 2197 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 2198 | { |
11cf8741 | 2199 | char buf = c; |
e0627e85 | 2200 | |
d9fcf2fb | 2201 | ui_file_write (stream, &buf, 1); |
c906108c SS |
2202 | return c; |
2203 | } | |
2204 | ||
2205 | int | |
fba45db2 | 2206 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
2207 | { |
2208 | char buf[2]; | |
2209 | ||
2210 | buf[0] = c; | |
2211 | buf[1] = 0; | |
2212 | fputs_filtered (buf, stream); | |
2213 | return c; | |
2214 | } | |
2215 | ||
2216 | /* puts_debug is like fputs_unfiltered, except it prints special | |
2217 | characters in printable fashion. */ | |
2218 | ||
2219 | void | |
fba45db2 | 2220 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
2221 | { |
2222 | int ch; | |
2223 | ||
2224 | /* Print prefix and suffix after each line. */ | |
2225 | static int new_line = 1; | |
2226 | static int return_p = 0; | |
2227 | static char *prev_prefix = ""; | |
2228 | static char *prev_suffix = ""; | |
2229 | ||
2230 | if (*string == '\n') | |
2231 | return_p = 0; | |
2232 | ||
2233 | /* If the prefix is changing, print the previous suffix, a new line, | |
2234 | and the new prefix. */ | |
c5aa993b | 2235 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2236 | { |
9846de1b JM |
2237 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2238 | fputs_unfiltered ("\n", gdb_stdlog); | |
2239 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2240 | } |
2241 | ||
2242 | /* Print prefix if we printed a newline during the previous call. */ | |
2243 | if (new_line) | |
2244 | { | |
2245 | new_line = 0; | |
9846de1b | 2246 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2247 | } |
2248 | ||
2249 | prev_prefix = prefix; | |
2250 | prev_suffix = suffix; | |
2251 | ||
2252 | /* Output characters in a printable format. */ | |
2253 | while ((ch = *string++) != '\0') | |
2254 | { | |
2255 | switch (ch) | |
c5aa993b | 2256 | { |
c906108c SS |
2257 | default: |
2258 | if (isprint (ch)) | |
9846de1b | 2259 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2260 | |
2261 | else | |
9846de1b | 2262 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2263 | break; |
2264 | ||
c5aa993b JM |
2265 | case '\\': |
2266 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2267 | break; | |
2268 | case '\b': | |
2269 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2270 | break; | |
2271 | case '\f': | |
2272 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2273 | break; | |
2274 | case '\n': | |
2275 | new_line = 1; | |
2276 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2277 | break; | |
2278 | case '\r': | |
2279 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2280 | break; | |
2281 | case '\t': | |
2282 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2283 | break; | |
2284 | case '\v': | |
2285 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2286 | break; | |
2287 | } | |
c906108c SS |
2288 | |
2289 | return_p = ch == '\r'; | |
2290 | } | |
2291 | ||
2292 | /* Print suffix if we printed a newline. */ | |
2293 | if (new_line) | |
2294 | { | |
9846de1b JM |
2295 | fputs_unfiltered (suffix, gdb_stdlog); |
2296 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2297 | } |
2298 | } | |
2299 | ||
2300 | ||
2301 | /* Print a variable number of ARGS using format FORMAT. If this | |
2302 | information is going to put the amount written (since the last call | |
2303 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2304 | call prompt_for_continue to get the users permision to continue. | |
2305 | ||
2306 | Unlike fprintf, this function does not return a value. | |
2307 | ||
2308 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2309 | fprintf (takes a stream to write on), and printf (the usual). | |
2310 | ||
2311 | Note also that a longjmp to top level may occur in this routine | |
2312 | (since prompt_for_continue may do so) so this routine should not be | |
2313 | called when cleanups are not in place. */ | |
2314 | ||
2315 | static void | |
fba45db2 KB |
2316 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2317 | va_list args, int filter) | |
c906108c SS |
2318 | { |
2319 | char *linebuffer; | |
2320 | struct cleanup *old_cleanups; | |
2321 | ||
e623b504 | 2322 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2323 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2324 | fputs_maybe_filtered (linebuffer, stream, filter); |
2325 | do_cleanups (old_cleanups); | |
2326 | } | |
2327 | ||
2328 | ||
2329 | void | |
fba45db2 | 2330 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2331 | { |
2332 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2333 | } | |
2334 | ||
2335 | void | |
fba45db2 | 2336 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2337 | { |
2338 | char *linebuffer; | |
2339 | struct cleanup *old_cleanups; | |
2340 | ||
e623b504 | 2341 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2342 | old_cleanups = make_cleanup (xfree, linebuffer); |
75feb17d DJ |
2343 | if (debug_timestamp && stream == gdb_stdlog) |
2344 | { | |
2345 | struct timeval tm; | |
2346 | char *timestamp; | |
6e5abd65 | 2347 | int len, need_nl; |
75feb17d DJ |
2348 | |
2349 | gettimeofday (&tm, NULL); | |
6e5abd65 PA |
2350 | |
2351 | len = strlen (linebuffer); | |
2352 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); | |
2353 | ||
2354 | timestamp = xstrprintf ("%ld:%ld %s%s", | |
2355 | (long) tm.tv_sec, (long) tm.tv_usec, | |
2356 | linebuffer, | |
2357 | need_nl ? "\n": ""); | |
75feb17d DJ |
2358 | make_cleanup (xfree, timestamp); |
2359 | fputs_unfiltered (timestamp, stream); | |
2360 | } | |
6e5abd65 PA |
2361 | else |
2362 | fputs_unfiltered (linebuffer, stream); | |
c906108c SS |
2363 | do_cleanups (old_cleanups); |
2364 | } | |
2365 | ||
2366 | void | |
fba45db2 | 2367 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2368 | { |
2369 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2370 | } | |
2371 | ||
2372 | void | |
fba45db2 | 2373 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2374 | { |
2375 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2376 | } | |
2377 | ||
c906108c | 2378 | void |
8731e58e | 2379 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2380 | { |
2381 | va_list args; | |
e0627e85 | 2382 | |
c906108c | 2383 | va_start (args, format); |
c906108c SS |
2384 | vfprintf_filtered (stream, format, args); |
2385 | va_end (args); | |
2386 | } | |
2387 | ||
c906108c | 2388 | void |
8731e58e | 2389 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2390 | { |
2391 | va_list args; | |
e0627e85 | 2392 | |
c906108c | 2393 | va_start (args, format); |
c906108c SS |
2394 | vfprintf_unfiltered (stream, format, args); |
2395 | va_end (args); | |
2396 | } | |
2397 | ||
2398 | /* Like fprintf_filtered, but prints its result indented. | |
2399 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2400 | ||
c906108c | 2401 | void |
8731e58e AC |
2402 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2403 | ...) | |
c906108c SS |
2404 | { |
2405 | va_list args; | |
e0627e85 | 2406 | |
c906108c | 2407 | va_start (args, format); |
c906108c SS |
2408 | print_spaces_filtered (spaces, stream); |
2409 | ||
2410 | vfprintf_filtered (stream, format, args); | |
2411 | va_end (args); | |
2412 | } | |
2413 | ||
2414 | ||
c906108c | 2415 | void |
8731e58e | 2416 | printf_filtered (const char *format, ...) |
c906108c SS |
2417 | { |
2418 | va_list args; | |
e0627e85 | 2419 | |
c906108c | 2420 | va_start (args, format); |
c906108c SS |
2421 | vfprintf_filtered (gdb_stdout, format, args); |
2422 | va_end (args); | |
2423 | } | |
2424 | ||
2425 | ||
c906108c | 2426 | void |
8731e58e | 2427 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2428 | { |
2429 | va_list args; | |
e0627e85 | 2430 | |
c906108c | 2431 | va_start (args, format); |
c906108c SS |
2432 | vfprintf_unfiltered (gdb_stdout, format, args); |
2433 | va_end (args); | |
2434 | } | |
2435 | ||
2436 | /* Like printf_filtered, but prints it's result indented. | |
2437 | Called as printfi_filtered (spaces, format, ...); */ | |
2438 | ||
c906108c | 2439 | void |
8731e58e | 2440 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2441 | { |
2442 | va_list args; | |
e0627e85 | 2443 | |
c906108c | 2444 | va_start (args, format); |
c906108c SS |
2445 | print_spaces_filtered (spaces, gdb_stdout); |
2446 | vfprintf_filtered (gdb_stdout, format, args); | |
2447 | va_end (args); | |
2448 | } | |
2449 | ||
2450 | /* Easy -- but watch out! | |
2451 | ||
2452 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2453 | This one doesn't, and had better not! */ | |
2454 | ||
2455 | void | |
fba45db2 | 2456 | puts_filtered (const char *string) |
c906108c SS |
2457 | { |
2458 | fputs_filtered (string, gdb_stdout); | |
2459 | } | |
2460 | ||
2461 | void | |
fba45db2 | 2462 | puts_unfiltered (const char *string) |
c906108c SS |
2463 | { |
2464 | fputs_unfiltered (string, gdb_stdout); | |
2465 | } | |
2466 | ||
2467 | /* Return a pointer to N spaces and a null. The pointer is good | |
2468 | until the next call to here. */ | |
2469 | char * | |
fba45db2 | 2470 | n_spaces (int n) |
c906108c | 2471 | { |
392a587b JM |
2472 | char *t; |
2473 | static char *spaces = 0; | |
2474 | static int max_spaces = -1; | |
c906108c SS |
2475 | |
2476 | if (n > max_spaces) | |
2477 | { | |
2478 | if (spaces) | |
b8c9b27d | 2479 | xfree (spaces); |
c5aa993b JM |
2480 | spaces = (char *) xmalloc (n + 1); |
2481 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2482 | *--t = ' '; |
2483 | spaces[n] = '\0'; | |
2484 | max_spaces = n; | |
2485 | } | |
2486 | ||
2487 | return spaces + max_spaces - n; | |
2488 | } | |
2489 | ||
2490 | /* Print N spaces. */ | |
2491 | void | |
fba45db2 | 2492 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2493 | { |
2494 | fputs_filtered (n_spaces (n), stream); | |
2495 | } | |
2496 | \f | |
4a351cef | 2497 | /* C++/ObjC demangler stuff. */ |
c906108c | 2498 | |
389e51db AC |
2499 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2500 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2501 | If the name is not mangled, or the language for the name is unknown, or | |
581e13c1 | 2502 | demangling is off, the name is printed in its "raw" form. */ |
c906108c SS |
2503 | |
2504 | void | |
0d5cff50 | 2505 | fprintf_symbol_filtered (struct ui_file *stream, const char *name, |
8731e58e | 2506 | enum language lang, int arg_mode) |
c906108c SS |
2507 | { |
2508 | char *demangled; | |
2509 | ||
2510 | if (name != NULL) | |
2511 | { | |
2512 | /* If user wants to see raw output, no problem. */ | |
2513 | if (!demangle) | |
2514 | { | |
2515 | fputs_filtered (name, stream); | |
2516 | } | |
2517 | else | |
2518 | { | |
9a3d7dfd | 2519 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2520 | fputs_filtered (demangled ? demangled : name, stream); |
2521 | if (demangled != NULL) | |
2522 | { | |
b8c9b27d | 2523 | xfree (demangled); |
c906108c SS |
2524 | } |
2525 | } | |
2526 | } | |
2527 | } | |
2528 | ||
2529 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2530 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2531 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2532 | |
c906108c SS |
2533 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2534 | This "feature" is useful when searching for matching C++ function names | |
2535 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
581e13c1 | 2536 | function). */ |
c906108c SS |
2537 | |
2538 | int | |
fba45db2 | 2539 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2540 | { |
2541 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2542 | { | |
2543 | while (isspace (*string1)) | |
2544 | { | |
2545 | string1++; | |
2546 | } | |
2547 | while (isspace (*string2)) | |
2548 | { | |
2549 | string2++; | |
2550 | } | |
559a7a62 JK |
2551 | if (case_sensitivity == case_sensitive_on && *string1 != *string2) |
2552 | break; | |
2553 | if (case_sensitivity == case_sensitive_off | |
2554 | && (tolower ((unsigned char) *string1) | |
2555 | != tolower ((unsigned char) *string2))) | |
2556 | break; | |
c906108c SS |
2557 | if (*string1 != '\0') |
2558 | { | |
2559 | string1++; | |
2560 | string2++; | |
2561 | } | |
2562 | } | |
2563 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2564 | } | |
2de7ced7 | 2565 | |
0fe19209 DC |
2566 | /* This is like strcmp except that it ignores whitespace and treats |
2567 | '(' as the first non-NULL character in terms of ordering. Like | |
2568 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2569 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2570 | according to that ordering. | |
2571 | ||
2572 | If a list is sorted according to this function and if you want to | |
2573 | find names in the list that match some fixed NAME according to | |
2574 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2575 | where this function would put NAME. | |
2576 | ||
559a7a62 JK |
2577 | This function must be neutral to the CASE_SENSITIVITY setting as the user |
2578 | may choose it during later lookup. Therefore this function always sorts | |
2579 | primarily case-insensitively and secondarily case-sensitively. | |
2580 | ||
0fe19209 DC |
2581 | Here are some examples of why using strcmp to sort is a bad idea: |
2582 | ||
2583 | Whitespace example: | |
2584 | ||
2585 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2586 | we try to do a search for "foo<char*>", strcmp will locate this | |
2587 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2588 | will start looking at strings beginning with "goo", and will never | |
2589 | see the correct match of "foo<char *>". | |
2590 | ||
2591 | Parenthesis example: | |
2592 | ||
2593 | In practice, this is less like to be an issue, but I'll give it a | |
2594 | shot. Let's assume that '$' is a legitimate character to occur in | |
2595 | symbols. (Which may well even be the case on some systems.) Then | |
2596 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2597 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2598 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2599 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2600 | "foo") is false, so it won't proceed to the actual match of | |
2601 | "foo(int)" with "foo". */ | |
2602 | ||
2603 | int | |
2604 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2605 | { | |
559a7a62 JK |
2606 | const char *saved_string1 = string1, *saved_string2 = string2; |
2607 | enum case_sensitivity case_pass = case_sensitive_off; | |
2608 | ||
2609 | for (;;) | |
0fe19209 | 2610 | { |
b11b1f88 JK |
2611 | /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'. |
2612 | Provide stub characters if we are already at the end of one of the | |
2613 | strings. */ | |
2614 | char c1 = 'X', c2 = 'X'; | |
2615 | ||
2616 | while (*string1 != '\0' && *string2 != '\0') | |
0fe19209 | 2617 | { |
b11b1f88 JK |
2618 | while (isspace (*string1)) |
2619 | string1++; | |
2620 | while (isspace (*string2)) | |
2621 | string2++; | |
2622 | ||
559a7a62 JK |
2623 | switch (case_pass) |
2624 | { | |
2625 | case case_sensitive_off: | |
2626 | c1 = tolower ((unsigned char) *string1); | |
2627 | c2 = tolower ((unsigned char) *string2); | |
2628 | break; | |
2629 | case case_sensitive_on: | |
b11b1f88 JK |
2630 | c1 = *string1; |
2631 | c2 = *string2; | |
559a7a62 JK |
2632 | break; |
2633 | } | |
b11b1f88 JK |
2634 | if (c1 != c2) |
2635 | break; | |
2636 | ||
2637 | if (*string1 != '\0') | |
2638 | { | |
2639 | string1++; | |
2640 | string2++; | |
2641 | } | |
0fe19209 | 2642 | } |
b11b1f88 JK |
2643 | |
2644 | switch (*string1) | |
0fe19209 | 2645 | { |
b11b1f88 JK |
2646 | /* Characters are non-equal unless they're both '\0'; we want to |
2647 | make sure we get the comparison right according to our | |
2648 | comparison in the cases where one of them is '\0' or '('. */ | |
2649 | case '\0': | |
2650 | if (*string2 == '\0') | |
559a7a62 | 2651 | break; |
b11b1f88 JK |
2652 | else |
2653 | return -1; | |
2654 | case '(': | |
2655 | if (*string2 == '\0') | |
2656 | return 1; | |
2657 | else | |
2658 | return -1; | |
2659 | default: | |
2660 | if (*string2 == '\0' || *string2 == '(') | |
2661 | return 1; | |
559a7a62 JK |
2662 | else if (c1 > c2) |
2663 | return 1; | |
2664 | else if (c1 < c2) | |
2665 | return -1; | |
2666 | /* PASSTHRU */ | |
0fe19209 | 2667 | } |
559a7a62 JK |
2668 | |
2669 | if (case_pass == case_sensitive_on) | |
2670 | return 0; | |
2671 | ||
2672 | /* Otherwise the strings were equal in case insensitive way, make | |
2673 | a more fine grained comparison in a case sensitive way. */ | |
2674 | ||
2675 | case_pass = case_sensitive_on; | |
2676 | string1 = saved_string1; | |
2677 | string2 = saved_string2; | |
0fe19209 | 2678 | } |
0fe19209 DC |
2679 | } |
2680 | ||
2de7ced7 DJ |
2681 | /* A simple comparison function with opposite semantics to strcmp. */ |
2682 | ||
2683 | int | |
2684 | streq (const char *lhs, const char *rhs) | |
2685 | { | |
2686 | return !strcmp (lhs, rhs); | |
2687 | } | |
c906108c | 2688 | \f |
c5aa993b | 2689 | |
c906108c | 2690 | /* |
c5aa993b JM |
2691 | ** subset_compare() |
2692 | ** Answer whether string_to_compare is a full or partial match to | |
2693 | ** template_string. The partial match must be in sequence starting | |
2694 | ** at index 0. | |
2695 | */ | |
c906108c | 2696 | int |
fba45db2 | 2697 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
2698 | { |
2699 | int match; | |
e0627e85 | 2700 | |
8731e58e AC |
2701 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
2702 | && strlen (string_to_compare) <= strlen (template_string)) | |
2703 | match = | |
2704 | (strncmp | |
2705 | (template_string, string_to_compare, strlen (string_to_compare)) == 0); | |
7a292a7a SS |
2706 | else |
2707 | match = 0; | |
2708 | return match; | |
2709 | } | |
c906108c | 2710 | |
7a292a7a | 2711 | static void |
fba45db2 | 2712 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
2713 | { |
2714 | pagination_enabled = 1; | |
2715 | } | |
2716 | ||
7a292a7a | 2717 | static void |
fba45db2 | 2718 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
2719 | { |
2720 | pagination_enabled = 0; | |
2721 | } | |
75feb17d DJ |
2722 | |
2723 | static void | |
2724 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
2725 | struct cmd_list_element *c, const char *value) | |
2726 | { | |
3e43a32a MS |
2727 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), |
2728 | value); | |
75feb17d | 2729 | } |
c906108c | 2730 | \f |
c5aa993b | 2731 | |
c906108c | 2732 | void |
fba45db2 | 2733 | initialize_utils (void) |
c906108c | 2734 | { |
35096d9d | 2735 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
77dec115 EZ |
2736 | Set number of characters where GDB should wrap lines of its output."), _("\ |
2737 | Show number of characters where GDB should wrap lines of its output."), _("\ | |
2738 | This affects where GDB wraps its output to fit the screen width.\n\ | |
2739 | Setting this to zero prevents GDB from wrapping its output."), | |
35096d9d | 2740 | set_width_command, |
920d2a44 | 2741 | show_chars_per_line, |
35096d9d AC |
2742 | &setlist, &showlist); |
2743 | ||
2744 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
77dec115 EZ |
2745 | Set number of lines in a page for GDB output pagination."), _("\ |
2746 | Show number of lines in a page for GDB output pagination."), _("\ | |
2747 | This affects the number of lines after which GDB will pause\n\ | |
2748 | its output and ask you whether to continue.\n\ | |
2749 | Setting this to zero causes GDB never pause during output."), | |
35096d9d | 2750 | set_height_command, |
920d2a44 | 2751 | show_lines_per_page, |
35096d9d | 2752 | &setlist, &showlist); |
c5aa993b | 2753 | |
c906108c SS |
2754 | init_page_info (); |
2755 | ||
5bf193a2 AC |
2756 | add_setshow_boolean_cmd ("pagination", class_support, |
2757 | &pagination_enabled, _("\ | |
77dec115 EZ |
2758 | Set state of GDB output pagination."), _("\ |
2759 | Show state of GDB output pagination."), _("\ | |
2760 | When pagination is ON, GDB pauses at end of each screenful of\n\ | |
2761 | its output and asks you whether to continue.\n\ | |
2762 | Turning pagination off is an alternative to \"set height 0\"."), | |
5bf193a2 | 2763 | NULL, |
920d2a44 | 2764 | show_pagination_enabled, |
5bf193a2 | 2765 | &setlist, &showlist); |
4261bedc | 2766 | |
c906108c SS |
2767 | if (xdb_commands) |
2768 | { | |
c5aa993b | 2769 | add_com ("am", class_support, pagination_on_command, |
1bedd215 | 2770 | _("Enable pagination")); |
c5aa993b | 2771 | add_com ("sm", class_support, pagination_off_command, |
1bedd215 | 2772 | _("Disable pagination")); |
c906108c SS |
2773 | } |
2774 | ||
5bf193a2 AC |
2775 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, |
2776 | &sevenbit_strings, _("\ | |
2777 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
2778 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
2779 | NULL, | |
920d2a44 | 2780 | show_sevenbit_strings, |
5bf193a2 AC |
2781 | &setprintlist, &showprintlist); |
2782 | ||
75feb17d DJ |
2783 | add_setshow_boolean_cmd ("timestamp", class_maintenance, |
2784 | &debug_timestamp, _("\ | |
2785 | Set timestamping of debugging messages."), _("\ | |
2786 | Show timestamping of debugging messages."), _("\ | |
2787 | When set, debugging messages will be marked with seconds and microseconds."), | |
2788 | NULL, | |
2789 | show_debug_timestamp, | |
2790 | &setdebuglist, &showdebuglist); | |
c906108c SS |
2791 | } |
2792 | ||
581e13c1 MS |
2793 | /* Print routines to handle variable size regs, etc. */ |
2794 | /* Temporary storage using circular buffer. */ | |
c906108c | 2795 | #define NUMCELLS 16 |
0759e0bf | 2796 | #define CELLSIZE 50 |
c5aa993b | 2797 | static char * |
fba45db2 | 2798 | get_cell (void) |
c906108c SS |
2799 | { |
2800 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b | 2801 | static int cell = 0; |
e0627e85 | 2802 | |
c5aa993b JM |
2803 | if (++cell >= NUMCELLS) |
2804 | cell = 0; | |
c906108c SS |
2805 | return buf[cell]; |
2806 | } | |
2807 | ||
66bf4b3a | 2808 | const char * |
5af949e3 | 2809 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
2810 | { |
2811 | /* Truncate address to the size of a target address, avoiding shifts | |
2812 | larger or equal than the width of a CORE_ADDR. The local | |
2813 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
581e13c1 | 2814 | when it won't occur. */ |
66bf4b3a AC |
2815 | /* NOTE: This assumes that the significant address information is |
2816 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2817 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2818 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2819 | ||
5af949e3 | 2820 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
2821 | |
2822 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2823 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2824 | return hex_string (addr); | |
2825 | } | |
2826 | ||
f1310107 TJB |
2827 | /* This function is described in "defs.h". */ |
2828 | ||
2829 | const char * | |
2830 | print_core_address (struct gdbarch *gdbarch, CORE_ADDR address) | |
2831 | { | |
2832 | int addr_bit = gdbarch_addr_bit (gdbarch); | |
2833 | ||
2834 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2835 | address &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2836 | ||
2837 | /* FIXME: cagney/2002-05-03: Need local_address_string() function | |
2838 | that returns the language localized string formatted to a width | |
2839 | based on gdbarch_addr_bit. */ | |
2840 | if (addr_bit <= 32) | |
2841 | return hex_string_custom (address, 8); | |
2842 | else | |
2843 | return hex_string_custom (address, 16); | |
2844 | } | |
2845 | ||
8e3b41a9 JK |
2846 | /* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */ |
2847 | ||
2848 | hashval_t | |
2849 | core_addr_hash (const void *ap) | |
2850 | { | |
2851 | const CORE_ADDR *addrp = ap; | |
2852 | ||
2853 | return *addrp; | |
2854 | } | |
2855 | ||
2856 | /* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */ | |
2857 | ||
2858 | int | |
2859 | core_addr_eq (const void *ap, const void *bp) | |
2860 | { | |
2861 | const CORE_ADDR *addr_ap = ap; | |
2862 | const CORE_ADDR *addr_bp = bp; | |
2863 | ||
2864 | return *addr_ap == *addr_bp; | |
2865 | } | |
2866 | ||
8cf46f62 MK |
2867 | static char * |
2868 | decimal2str (char *sign, ULONGEST addr, int width) | |
104c1213 | 2869 | { |
8cf46f62 | 2870 | /* Steal code from valprint.c:print_decimal(). Should this worry |
581e13c1 | 2871 | about the real size of addr as the above does? */ |
104c1213 | 2872 | unsigned long temp[3]; |
8cf46f62 | 2873 | char *str = get_cell (); |
104c1213 | 2874 | int i = 0; |
5d502164 | 2875 | |
104c1213 JM |
2876 | do |
2877 | { | |
2878 | temp[i] = addr % (1000 * 1000 * 1000); | |
2879 | addr /= (1000 * 1000 * 1000); | |
2880 | i++; | |
bb599908 | 2881 | width -= 9; |
104c1213 JM |
2882 | } |
2883 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 2884 | |
bb599908 PH |
2885 | width += 9; |
2886 | if (width < 0) | |
2887 | width = 0; | |
8cf46f62 | 2888 | |
104c1213 JM |
2889 | switch (i) |
2890 | { | |
2891 | case 1: | |
8cf46f62 | 2892 | xsnprintf (str, CELLSIZE, "%s%0*lu", sign, width, temp[0]); |
104c1213 JM |
2893 | break; |
2894 | case 2: | |
8cf46f62 MK |
2895 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu", sign, width, |
2896 | temp[1], temp[0]); | |
104c1213 JM |
2897 | break; |
2898 | case 3: | |
8cf46f62 MK |
2899 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu%09lu", sign, width, |
2900 | temp[2], temp[1], temp[0]); | |
bb599908 PH |
2901 | break; |
2902 | default: | |
2903 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2904 | _("failed internal consistency check")); |
bb599908 | 2905 | } |
8cf46f62 MK |
2906 | |
2907 | return str; | |
bb599908 PH |
2908 | } |
2909 | ||
8cf46f62 MK |
2910 | static char * |
2911 | octal2str (ULONGEST addr, int width) | |
bb599908 PH |
2912 | { |
2913 | unsigned long temp[3]; | |
8cf46f62 | 2914 | char *str = get_cell (); |
bb599908 | 2915 | int i = 0; |
5d502164 | 2916 | |
bb599908 PH |
2917 | do |
2918 | { | |
2919 | temp[i] = addr % (0100000 * 0100000); | |
2920 | addr /= (0100000 * 0100000); | |
2921 | i++; | |
2922 | width -= 10; | |
2923 | } | |
2924 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 2925 | |
bb599908 PH |
2926 | width += 10; |
2927 | if (width < 0) | |
2928 | width = 0; | |
8cf46f62 | 2929 | |
bb599908 PH |
2930 | switch (i) |
2931 | { | |
2932 | case 1: | |
2933 | if (temp[0] == 0) | |
8cf46f62 | 2934 | xsnprintf (str, CELLSIZE, "%*o", width, 0); |
bb599908 | 2935 | else |
8cf46f62 | 2936 | xsnprintf (str, CELLSIZE, "0%0*lo", width, temp[0]); |
bb599908 PH |
2937 | break; |
2938 | case 2: | |
8cf46f62 | 2939 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo", width, temp[1], temp[0]); |
bb599908 PH |
2940 | break; |
2941 | case 3: | |
8cf46f62 MK |
2942 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo%010lo", width, |
2943 | temp[2], temp[1], temp[0]); | |
104c1213 JM |
2944 | break; |
2945 | default: | |
8731e58e | 2946 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 2947 | _("failed internal consistency check")); |
104c1213 | 2948 | } |
8cf46f62 MK |
2949 | |
2950 | return str; | |
104c1213 JM |
2951 | } |
2952 | ||
2953 | char * | |
623d3eb1 | 2954 | pulongest (ULONGEST u) |
104c1213 | 2955 | { |
623d3eb1 | 2956 | return decimal2str ("", u, 0); |
104c1213 JM |
2957 | } |
2958 | ||
2959 | char * | |
623d3eb1 | 2960 | plongest (LONGEST l) |
104c1213 | 2961 | { |
623d3eb1 DE |
2962 | if (l < 0) |
2963 | return decimal2str ("-", -l, 0); | |
104c1213 | 2964 | else |
623d3eb1 | 2965 | return decimal2str ("", l, 0); |
104c1213 JM |
2966 | } |
2967 | ||
8cf46f62 | 2968 | /* Eliminate warning from compiler on 32-bit systems. */ |
5683e87a AC |
2969 | static int thirty_two = 32; |
2970 | ||
104c1213 | 2971 | char * |
5683e87a | 2972 | phex (ULONGEST l, int sizeof_l) |
104c1213 | 2973 | { |
45a1e866 | 2974 | char *str; |
8cf46f62 | 2975 | |
5683e87a | 2976 | switch (sizeof_l) |
104c1213 JM |
2977 | { |
2978 | case 8: | |
45a1e866 | 2979 | str = get_cell (); |
8cf46f62 MK |
2980 | xsnprintf (str, CELLSIZE, "%08lx%08lx", |
2981 | (unsigned long) (l >> thirty_two), | |
2982 | (unsigned long) (l & 0xffffffff)); | |
104c1213 JM |
2983 | break; |
2984 | case 4: | |
45a1e866 | 2985 | str = get_cell (); |
8cf46f62 | 2986 | xsnprintf (str, CELLSIZE, "%08lx", (unsigned long) l); |
104c1213 JM |
2987 | break; |
2988 | case 2: | |
45a1e866 | 2989 | str = get_cell (); |
8cf46f62 | 2990 | xsnprintf (str, CELLSIZE, "%04x", (unsigned short) (l & 0xffff)); |
104c1213 JM |
2991 | break; |
2992 | default: | |
45a1e866 | 2993 | str = phex (l, sizeof (l)); |
5683e87a | 2994 | break; |
104c1213 | 2995 | } |
8cf46f62 | 2996 | |
5683e87a | 2997 | return str; |
104c1213 JM |
2998 | } |
2999 | ||
c5aa993b | 3000 | char * |
5683e87a | 3001 | phex_nz (ULONGEST l, int sizeof_l) |
c906108c | 3002 | { |
faf833ca | 3003 | char *str; |
8cf46f62 | 3004 | |
5683e87a | 3005 | switch (sizeof_l) |
c906108c | 3006 | { |
c5aa993b JM |
3007 | case 8: |
3008 | { | |
5683e87a | 3009 | unsigned long high = (unsigned long) (l >> thirty_two); |
5d502164 | 3010 | |
faf833ca | 3011 | str = get_cell (); |
c5aa993b | 3012 | if (high == 0) |
8cf46f62 MK |
3013 | xsnprintf (str, CELLSIZE, "%lx", |
3014 | (unsigned long) (l & 0xffffffff)); | |
c5aa993b | 3015 | else |
8cf46f62 MK |
3016 | xsnprintf (str, CELLSIZE, "%lx%08lx", high, |
3017 | (unsigned long) (l & 0xffffffff)); | |
c906108c | 3018 | break; |
c5aa993b JM |
3019 | } |
3020 | case 4: | |
faf833ca | 3021 | str = get_cell (); |
8cf46f62 | 3022 | xsnprintf (str, CELLSIZE, "%lx", (unsigned long) l); |
c5aa993b JM |
3023 | break; |
3024 | case 2: | |
faf833ca | 3025 | str = get_cell (); |
8cf46f62 | 3026 | xsnprintf (str, CELLSIZE, "%x", (unsigned short) (l & 0xffff)); |
c5aa993b JM |
3027 | break; |
3028 | default: | |
faf833ca | 3029 | str = phex_nz (l, sizeof (l)); |
5683e87a | 3030 | break; |
c906108c | 3031 | } |
8cf46f62 | 3032 | |
5683e87a | 3033 | return str; |
c906108c | 3034 | } |
ac2e2ef7 | 3035 | |
0759e0bf AC |
3036 | /* Converts a LONGEST to a C-format hexadecimal literal and stores it |
3037 | in a static string. Returns a pointer to this string. */ | |
3038 | char * | |
3039 | hex_string (LONGEST num) | |
3040 | { | |
3041 | char *result = get_cell (); | |
e0627e85 | 3042 | |
8cf46f62 | 3043 | xsnprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num))); |
0759e0bf AC |
3044 | return result; |
3045 | } | |
3046 | ||
3047 | /* Converts a LONGEST number to a C-format hexadecimal literal and | |
3048 | stores it in a static string. Returns a pointer to this string | |
3049 | that is valid until the next call. The number is padded on the | |
3050 | left with 0s to at least WIDTH characters. */ | |
3051 | char * | |
3052 | hex_string_custom (LONGEST num, int width) | |
3053 | { | |
3054 | char *result = get_cell (); | |
3055 | char *result_end = result + CELLSIZE - 1; | |
3056 | const char *hex = phex_nz (num, sizeof (num)); | |
3057 | int hex_len = strlen (hex); | |
3058 | ||
3059 | if (hex_len > width) | |
3060 | width = hex_len; | |
3061 | if (width + 2 >= CELLSIZE) | |
3e43a32a MS |
3062 | internal_error (__FILE__, __LINE__, _("\ |
3063 | hex_string_custom: insufficient space to store result")); | |
0759e0bf AC |
3064 | |
3065 | strcpy (result_end - width - 2, "0x"); | |
3066 | memset (result_end - width, '0', width); | |
3067 | strcpy (result_end - hex_len, hex); | |
3068 | return result_end - width - 2; | |
3069 | } | |
ac2e2ef7 | 3070 | |
bb599908 PH |
3071 | /* Convert VAL to a numeral in the given radix. For |
3072 | * radix 10, IS_SIGNED may be true, indicating a signed quantity; | |
3073 | * otherwise VAL is interpreted as unsigned. If WIDTH is supplied, | |
3074 | * it is the minimum width (0-padded if needed). USE_C_FORMAT means | |
3075 | * to use C format in all cases. If it is false, then 'x' | |
581e13c1 | 3076 | * and 'o' formats do not include a prefix (0x or leading 0). */ |
bb599908 PH |
3077 | |
3078 | char * | |
3079 | int_string (LONGEST val, int radix, int is_signed, int width, | |
3080 | int use_c_format) | |
3081 | { | |
3082 | switch (radix) | |
3083 | { | |
3084 | case 16: | |
3085 | { | |
3086 | char *result; | |
5d502164 | 3087 | |
bb599908 PH |
3088 | if (width == 0) |
3089 | result = hex_string (val); | |
3090 | else | |
3091 | result = hex_string_custom (val, width); | |
3092 | if (! use_c_format) | |
3093 | result += 2; | |
3094 | return result; | |
3095 | } | |
3096 | case 10: | |
3097 | { | |
bb599908 | 3098 | if (is_signed && val < 0) |
8cf46f62 | 3099 | return decimal2str ("-", -val, width); |
bb599908 | 3100 | else |
8cf46f62 | 3101 | return decimal2str ("", val, width); |
bb599908 PH |
3102 | } |
3103 | case 8: | |
3104 | { | |
8cf46f62 | 3105 | char *result = octal2str (val, width); |
5d502164 | 3106 | |
bb599908 PH |
3107 | if (use_c_format || val == 0) |
3108 | return result; | |
3109 | else | |
3110 | return result + 1; | |
3111 | } | |
3112 | default: | |
3113 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3114 | _("failed internal consistency check")); |
bb599908 PH |
3115 | } |
3116 | } | |
3117 | ||
03dd37c3 AC |
3118 | /* Convert a CORE_ADDR into a string. */ |
3119 | const char * | |
3120 | core_addr_to_string (const CORE_ADDR addr) | |
49b563f9 KS |
3121 | { |
3122 | char *str = get_cell (); | |
e0627e85 | 3123 | |
49b563f9 KS |
3124 | strcpy (str, "0x"); |
3125 | strcat (str, phex (addr, sizeof (addr))); | |
3126 | return str; | |
3127 | } | |
3128 | ||
3129 | const char * | |
3130 | core_addr_to_string_nz (const CORE_ADDR addr) | |
03dd37c3 AC |
3131 | { |
3132 | char *str = get_cell (); | |
e0627e85 | 3133 | |
03dd37c3 AC |
3134 | strcpy (str, "0x"); |
3135 | strcat (str, phex_nz (addr, sizeof (addr))); | |
3136 | return str; | |
3137 | } | |
3138 | ||
3139 | /* Convert a string back into a CORE_ADDR. */ | |
3140 | CORE_ADDR | |
3141 | string_to_core_addr (const char *my_string) | |
3142 | { | |
3143 | CORE_ADDR addr = 0; | |
9544c605 | 3144 | |
03dd37c3 AC |
3145 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
3146 | { | |
ced572fe | 3147 | /* Assume that it is in hex. */ |
03dd37c3 | 3148 | int i; |
5d502164 | 3149 | |
03dd37c3 AC |
3150 | for (i = 2; my_string[i] != '\0'; i++) |
3151 | { | |
3152 | if (isdigit (my_string[i])) | |
3153 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 3154 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
3155 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
3156 | else | |
63f06803 | 3157 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
3158 | } |
3159 | } | |
3160 | else | |
3161 | { | |
3162 | /* Assume that it is in decimal. */ | |
3163 | int i; | |
5d502164 | 3164 | |
03dd37c3 AC |
3165 | for (i = 0; my_string[i] != '\0'; i++) |
3166 | { | |
3167 | if (isdigit (my_string[i])) | |
3168 | addr = (my_string[i] - '0') + (addr * 10); | |
3169 | else | |
63f06803 | 3170 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
3171 | } |
3172 | } | |
9544c605 | 3173 | |
03dd37c3 AC |
3174 | return addr; |
3175 | } | |
58d370e0 | 3176 | |
17ea7499 CES |
3177 | const char * |
3178 | host_address_to_string (const void *addr) | |
3179 | { | |
3180 | char *str = get_cell (); | |
ea8992ce | 3181 | |
773698b5 | 3182 | xsnprintf (str, CELLSIZE, "0x%s", phex_nz ((uintptr_t) addr, sizeof (addr))); |
17ea7499 CES |
3183 | return str; |
3184 | } | |
3185 | ||
58d370e0 TT |
3186 | char * |
3187 | gdb_realpath (const char *filename) | |
3188 | { | |
70d35819 AC |
3189 | /* Method 1: The system has a compile time upper bound on a filename |
3190 | path. Use that and realpath() to canonicalize the name. This is | |
3191 | the most common case. Note that, if there isn't a compile time | |
3192 | upper bound, you want to avoid realpath() at all costs. */ | |
a4db0f07 | 3193 | #if defined(HAVE_REALPATH) |
70d35819 | 3194 | { |
a4db0f07 | 3195 | # if defined (PATH_MAX) |
70d35819 | 3196 | char buf[PATH_MAX]; |
a4db0f07 RH |
3197 | # define USE_REALPATH |
3198 | # elif defined (MAXPATHLEN) | |
70d35819 | 3199 | char buf[MAXPATHLEN]; |
a4db0f07 RH |
3200 | # define USE_REALPATH |
3201 | # endif | |
70d35819 | 3202 | # if defined (USE_REALPATH) |
82c0260e | 3203 | const char *rp = realpath (filename, buf); |
5d502164 | 3204 | |
70d35819 AC |
3205 | if (rp == NULL) |
3206 | rp = filename; | |
3207 | return xstrdup (rp); | |
70d35819 | 3208 | # endif |
6f88d630 | 3209 | } |
a4db0f07 RH |
3210 | #endif /* HAVE_REALPATH */ |
3211 | ||
70d35819 AC |
3212 | /* Method 2: The host system (i.e., GNU) has the function |
3213 | canonicalize_file_name() which malloc's a chunk of memory and | |
3214 | returns that, use that. */ | |
3215 | #if defined(HAVE_CANONICALIZE_FILE_NAME) | |
3216 | { | |
3217 | char *rp = canonicalize_file_name (filename); | |
5d502164 | 3218 | |
70d35819 AC |
3219 | if (rp == NULL) |
3220 | return xstrdup (filename); | |
3221 | else | |
3222 | return rp; | |
3223 | } | |
58d370e0 | 3224 | #endif |
70d35819 | 3225 | |
6411e720 AC |
3226 | /* FIXME: cagney/2002-11-13: |
3227 | ||
3228 | Method 2a: Use realpath() with a NULL buffer. Some systems, due | |
7a9dd1b2 | 3229 | to the problems described in method 3, have modified their |
6411e720 AC |
3230 | realpath() implementation so that it will allocate a buffer when |
3231 | NULL is passed in. Before this can be used, though, some sort of | |
3232 | configure time test would need to be added. Otherwize the code | |
3233 | will likely core dump. */ | |
3234 | ||
70d35819 AC |
3235 | /* Method 3: Now we're getting desperate! The system doesn't have a |
3236 | compile time buffer size and no alternative function. Query the | |
3237 | OS, using pathconf(), for the buffer limit. Care is needed | |
3238 | though, some systems do not limit PATH_MAX (return -1 for | |
3239 | pathconf()) making it impossible to pass a correctly sized buffer | |
3240 | to realpath() (it could always overflow). On those systems, we | |
3241 | skip this. */ | |
3242 | #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA) | |
3243 | { | |
3244 | /* Find out the max path size. */ | |
3245 | long path_max = pathconf ("/", _PC_PATH_MAX); | |
5d502164 | 3246 | |
70d35819 AC |
3247 | if (path_max > 0) |
3248 | { | |
3249 | /* PATH_MAX is bounded. */ | |
3250 | char *buf = alloca (path_max); | |
3251 | char *rp = realpath (filename, buf); | |
5d502164 | 3252 | |
70d35819 AC |
3253 | return xstrdup (rp ? rp : filename); |
3254 | } | |
3255 | } | |
3256 | #endif | |
3257 | ||
9c5e4386 JB |
3258 | /* The MS Windows method. If we don't have realpath, we assume we |
3259 | don't have symlinks and just canonicalize to a Windows absolute | |
3260 | path. GetFullPath converts ../ and ./ in relative paths to | |
3261 | absolute paths, filling in current drive if one is not given | |
3262 | or using the current directory of a specified drive (eg, "E:foo"). | |
3263 | It also converts all forward slashes to back slashes. */ | |
3264 | /* The file system is case-insensitive but case-preserving. | |
3265 | So we do not lowercase the path. Otherwise, we might not | |
3266 | be able to display the original casing in a given path. */ | |
3267 | #if defined (_WIN32) | |
3268 | { | |
3269 | char buf[MAX_PATH]; | |
3270 | DWORD len = GetFullPathName (filename, MAX_PATH, buf, NULL); | |
3271 | ||
3272 | if (len > 0 && len < MAX_PATH) | |
3273 | return xstrdup (buf); | |
3274 | } | |
3275 | #endif | |
3276 | ||
70d35819 AC |
3277 | /* This system is a lost cause, just dup the buffer. */ |
3278 | return xstrdup (filename); | |
58d370e0 | 3279 | } |
303c8ebd | 3280 | |
5b03f266 AC |
3281 | ULONGEST |
3282 | align_up (ULONGEST v, int n) | |
3283 | { | |
3284 | /* Check that N is really a power of two. */ | |
3285 | gdb_assert (n && (n & (n-1)) == 0); | |
3286 | return (v + n - 1) & -n; | |
3287 | } | |
3288 | ||
3289 | ULONGEST | |
3290 | align_down (ULONGEST v, int n) | |
3291 | { | |
3292 | /* Check that N is really a power of two. */ | |
3293 | gdb_assert (n && (n & (n-1)) == 0); | |
3294 | return (v & -n); | |
3295 | } | |
ae5a43e0 DJ |
3296 | |
3297 | /* Allocation function for the libiberty hash table which uses an | |
3298 | obstack. The obstack is passed as DATA. */ | |
3299 | ||
3300 | void * | |
3301 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
3302 | { | |
3303 | unsigned int total = size * count; | |
3304 | void *ptr = obstack_alloc ((struct obstack *) data, total); | |
e0627e85 | 3305 | |
ae5a43e0 DJ |
3306 | memset (ptr, 0, total); |
3307 | return ptr; | |
3308 | } | |
3309 | ||
3310 | /* Trivial deallocation function for the libiberty splay tree and hash | |
3311 | table - don't deallocate anything. Rely on later deletion of the | |
3312 | obstack. DATA will be the obstack, although it is not needed | |
3313 | here. */ | |
3314 | ||
3315 | void | |
3316 | dummy_obstack_deallocate (void *object, void *data) | |
3317 | { | |
3318 | return; | |
3319 | } | |
253c8abb DJ |
3320 | |
3321 | /* The bit offset of the highest byte in a ULONGEST, for overflow | |
3322 | checking. */ | |
3323 | ||
3324 | #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT) | |
3325 | ||
3326 | /* True (non-zero) iff DIGIT is a valid digit in radix BASE, | |
3327 | where 2 <= BASE <= 36. */ | |
3328 | ||
3329 | static int | |
3330 | is_digit_in_base (unsigned char digit, int base) | |
3331 | { | |
3332 | if (!isalnum (digit)) | |
3333 | return 0; | |
3334 | if (base <= 10) | |
3335 | return (isdigit (digit) && digit < base + '0'); | |
3336 | else | |
3337 | return (isdigit (digit) || tolower (digit) < base - 10 + 'a'); | |
3338 | } | |
3339 | ||
3340 | static int | |
3341 | digit_to_int (unsigned char c) | |
3342 | { | |
3343 | if (isdigit (c)) | |
3344 | return c - '0'; | |
3345 | else | |
3346 | return tolower (c) - 'a' + 10; | |
3347 | } | |
3348 | ||
3349 | /* As for strtoul, but for ULONGEST results. */ | |
3350 | ||
3351 | ULONGEST | |
3352 | strtoulst (const char *num, const char **trailer, int base) | |
3353 | { | |
3354 | unsigned int high_part; | |
3355 | ULONGEST result; | |
3356 | int minus = 0; | |
3357 | int i = 0; | |
3358 | ||
3359 | /* Skip leading whitespace. */ | |
3360 | while (isspace (num[i])) | |
3361 | i++; | |
3362 | ||
3363 | /* Handle prefixes. */ | |
3364 | if (num[i] == '+') | |
3365 | i++; | |
3366 | else if (num[i] == '-') | |
3367 | { | |
3368 | minus = 1; | |
3369 | i++; | |
3370 | } | |
3371 | ||
3372 | if (base == 0 || base == 16) | |
3373 | { | |
3374 | if (num[i] == '0' && (num[i + 1] == 'x' || num[i + 1] == 'X')) | |
3375 | { | |
3376 | i += 2; | |
3377 | if (base == 0) | |
3378 | base = 16; | |
3379 | } | |
3380 | } | |
3381 | ||
3382 | if (base == 0 && num[i] == '0') | |
3383 | base = 8; | |
3384 | ||
3385 | if (base == 0) | |
3386 | base = 10; | |
3387 | ||
3388 | if (base < 2 || base > 36) | |
3389 | { | |
3390 | errno = EINVAL; | |
3391 | return 0; | |
3392 | } | |
3393 | ||
3394 | result = high_part = 0; | |
3395 | for (; is_digit_in_base (num[i], base); i += 1) | |
3396 | { | |
3397 | result = result * base + digit_to_int (num[i]); | |
3398 | high_part = high_part * base + (unsigned int) (result >> HIGH_BYTE_POSN); | |
3399 | result &= ((ULONGEST) 1 << HIGH_BYTE_POSN) - 1; | |
3400 | if (high_part > 0xff) | |
3401 | { | |
3402 | errno = ERANGE; | |
3403 | result = ~ (ULONGEST) 0; | |
3404 | high_part = 0; | |
3405 | minus = 0; | |
3406 | break; | |
3407 | } | |
3408 | } | |
3409 | ||
3410 | if (trailer != NULL) | |
3411 | *trailer = &num[i]; | |
3412 | ||
3413 | result = result + ((ULONGEST) high_part << HIGH_BYTE_POSN); | |
3414 | if (minus) | |
3415 | return -result; | |
3416 | else | |
3417 | return result; | |
3418 | } | |
e1024ff1 DJ |
3419 | |
3420 | /* Simple, portable version of dirname that does not modify its | |
3421 | argument. */ | |
3422 | ||
3423 | char * | |
3424 | ldirname (const char *filename) | |
3425 | { | |
3426 | const char *base = lbasename (filename); | |
3427 | char *dirname; | |
3428 | ||
3429 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
3430 | --base; | |
3431 | ||
3432 | if (base == filename) | |
3433 | return NULL; | |
3434 | ||
3435 | dirname = xmalloc (base - filename + 2); | |
3436 | memcpy (dirname, filename, base - filename); | |
3437 | ||
3438 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
3439 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
3440 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
3441 | && !IS_DIR_SEPARATOR (filename[0])) | |
3442 | dirname[base++ - filename] = '.'; | |
3443 | ||
3444 | dirname[base - filename] = '\0'; | |
3445 | return dirname; | |
3446 | } | |
d1a41061 PP |
3447 | |
3448 | /* Call libiberty's buildargv, and return the result. | |
3449 | If buildargv fails due to out-of-memory, call nomem. | |
3450 | Therefore, the returned value is guaranteed to be non-NULL, | |
3451 | unless the parameter itself is NULL. */ | |
3452 | ||
3453 | char ** | |
3454 | gdb_buildargv (const char *s) | |
3455 | { | |
3456 | char **argv = buildargv (s); | |
e0627e85 | 3457 | |
d1a41061 | 3458 | if (s != NULL && argv == NULL) |
d26e3629 | 3459 | malloc_failure (0); |
d1a41061 PP |
3460 | return argv; |
3461 | } | |
3c16cced | 3462 | |
dc146f7c VP |
3463 | int |
3464 | compare_positive_ints (const void *ap, const void *bp) | |
3465 | { | |
3466 | /* Because we know we're comparing two ints which are positive, | |
3467 | there's no danger of overflow here. */ | |
3468 | return * (int *) ap - * (int *) bp; | |
3469 | } | |
3470 | ||
f8eba3c6 TT |
3471 | /* String compare function for qsort. */ |
3472 | ||
3473 | int | |
3474 | compare_strings (const void *arg1, const void *arg2) | |
3475 | { | |
3476 | const char **s1 = (const char **) arg1; | |
3477 | const char **s2 = (const char **) arg2; | |
3478 | ||
3479 | return strcmp (*s1, *s2); | |
3480 | } | |
3481 | ||
d18b8b7a | 3482 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3e43a32a MS |
3483 | #define AMBIGUOUS_MESS2 \ |
3484 | ".\nUse \"set gnutarget format-name\" to specify the format." | |
d18b8b7a HZ |
3485 | |
3486 | const char * | |
3487 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) | |
3488 | { | |
3489 | char *ret, *retp; | |
3490 | int ret_len; | |
3491 | char **p; | |
3492 | ||
3493 | /* Check if errmsg just need simple return. */ | |
3494 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
3495 | return bfd_errmsg (error_tag); | |
3496 | ||
3497 | ret_len = strlen (bfd_errmsg (error_tag)) + strlen (AMBIGUOUS_MESS1) | |
3498 | + strlen (AMBIGUOUS_MESS2); | |
3499 | for (p = matching; *p; p++) | |
3500 | ret_len += strlen (*p) + 1; | |
3501 | ret = xmalloc (ret_len + 1); | |
3502 | retp = ret; | |
3503 | make_cleanup (xfree, ret); | |
3504 | ||
3505 | strcpy (retp, bfd_errmsg (error_tag)); | |
3506 | retp += strlen (retp); | |
3507 | ||
3508 | strcpy (retp, AMBIGUOUS_MESS1); | |
3509 | retp += strlen (retp); | |
3510 | ||
3511 | for (p = matching; *p; p++) | |
3512 | { | |
3513 | sprintf (retp, " %s", *p); | |
3514 | retp += strlen (retp); | |
3515 | } | |
3516 | xfree (matching); | |
3517 | ||
3518 | strcpy (retp, AMBIGUOUS_MESS2); | |
3519 | ||
3520 | return ret; | |
3521 | } | |
3522 | ||
74164c56 JK |
3523 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
3524 | ||
3525 | int | |
3526 | parse_pid_to_attach (char *args) | |
3527 | { | |
3528 | unsigned long pid; | |
3529 | char *dummy; | |
3530 | ||
3531 | if (!args) | |
3532 | error_no_arg (_("process-id to attach")); | |
3533 | ||
3534 | dummy = args; | |
3535 | pid = strtoul (args, &dummy, 0); | |
3536 | /* Some targets don't set errno on errors, grrr! */ | |
3537 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
3538 | error (_("Illegal process-id: %s."), args); | |
3539 | ||
3540 | return pid; | |
3541 | } | |
3542 | ||
353d1d73 JK |
3543 | /* Helper for make_bpstat_clear_actions_cleanup. */ |
3544 | ||
3545 | static void | |
3546 | do_bpstat_clear_actions_cleanup (void *unused) | |
3547 | { | |
3548 | bpstat_clear_actions (); | |
3549 | } | |
3550 | ||
3551 | /* Call bpstat_clear_actions for the case an exception is throw. You should | |
3552 | discard_cleanups if no exception is caught. */ | |
3553 | ||
3554 | struct cleanup * | |
3555 | make_bpstat_clear_actions_cleanup (void) | |
3556 | { | |
3557 | return make_cleanup (do_bpstat_clear_actions_cleanup, NULL); | |
3558 | } | |
3559 | ||
df15bd07 JK |
3560 | /* Check for GCC >= 4.x according to the symtab->producer string. Return minor |
3561 | version (x) of 4.x in such case. If it is not GCC or it is GCC older than | |
3562 | 4.x return -1. If it is GCC 5.x or higher return INT_MAX. */ | |
3563 | ||
3564 | int | |
3565 | producer_is_gcc_ge_4 (const char *producer) | |
3566 | { | |
3567 | const char *cs; | |
3568 | int major, minor; | |
3569 | ||
3570 | if (producer == NULL) | |
3571 | { | |
3572 | /* For unknown compilers expect their behavior is not compliant. For GCC | |
3573 | this case can also happen for -gdwarf-4 type units supported since | |
3574 | gcc-4.5. */ | |
3575 | ||
3576 | return -1; | |
3577 | } | |
3578 | ||
3579 | /* Skip any identifier after "GNU " - such as "C++" or "Java". */ | |
3580 | ||
3581 | if (strncmp (producer, "GNU ", strlen ("GNU ")) != 0) | |
3582 | { | |
3583 | /* For non-GCC compilers expect their behavior is not compliant. */ | |
3584 | ||
3585 | return -1; | |
3586 | } | |
3587 | cs = &producer[strlen ("GNU ")]; | |
3588 | while (*cs && !isdigit (*cs)) | |
3589 | cs++; | |
3590 | if (sscanf (cs, "%d.%d", &major, &minor) != 2) | |
3591 | { | |
3592 | /* Not recognized as GCC. */ | |
3593 | ||
3594 | return -1; | |
3595 | } | |
3596 | ||
3597 | if (major < 4) | |
3598 | return -1; | |
3599 | if (major > 4) | |
3600 | return INT_MAX; | |
3601 | return minor; | |
3602 | } | |
3603 | ||
e4ab2fad JK |
3604 | /* Helper for make_cleanup_free_char_ptr_vec. */ |
3605 | ||
3606 | static void | |
3607 | do_free_char_ptr_vec (void *arg) | |
3608 | { | |
3609 | VEC (char_ptr) *char_ptr_vec = arg; | |
3610 | ||
3611 | free_char_ptr_vec (char_ptr_vec); | |
3612 | } | |
3613 | ||
3614 | /* Make cleanup handler calling xfree for each element of CHAR_PTR_VEC and | |
3615 | final VEC_free for CHAR_PTR_VEC itself. | |
3616 | ||
3617 | You must not modify CHAR_PTR_VEC after this cleanup registration as the | |
3618 | CHAR_PTR_VEC base address may change on its updates. Contrary to VEC_free | |
3619 | this function does not (cannot) clear the pointer. */ | |
3620 | ||
3621 | struct cleanup * | |
3622 | make_cleanup_free_char_ptr_vec (VEC (char_ptr) *char_ptr_vec) | |
3623 | { | |
3624 | return make_cleanup (do_free_char_ptr_vec, char_ptr_vec); | |
3625 | } | |
3626 | ||
6dea1fbd JK |
3627 | /* Substitute all occurences of string FROM by string TO in *STRINGP. *STRINGP |
3628 | must come from xrealloc-compatible allocator and it may be updated. FROM | |
1564a261 JK |
3629 | needs to be delimited by IS_DIR_SEPARATOR or DIRNAME_SEPARATOR (or be |
3630 | located at the start or end of *STRINGP. */ | |
6dea1fbd JK |
3631 | |
3632 | void | |
3633 | substitute_path_component (char **stringp, const char *from, const char *to) | |
3634 | { | |
3635 | char *string = *stringp, *s; | |
3636 | const size_t from_len = strlen (from); | |
3637 | const size_t to_len = strlen (to); | |
3638 | ||
3639 | for (s = string;;) | |
3640 | { | |
3641 | s = strstr (s, from); | |
3642 | if (s == NULL) | |
3643 | break; | |
3644 | ||
1564a261 JK |
3645 | if ((s == string || IS_DIR_SEPARATOR (s[-1]) |
3646 | || s[-1] == DIRNAME_SEPARATOR) | |
3647 | && (s[from_len] == '\0' || IS_DIR_SEPARATOR (s[from_len]) | |
3648 | || s[from_len] == DIRNAME_SEPARATOR)) | |
6dea1fbd JK |
3649 | { |
3650 | char *string_new; | |
3651 | ||
3652 | string_new = xrealloc (string, (strlen (string) + to_len + 1)); | |
3653 | ||
3654 | /* Relocate the current S pointer. */ | |
3655 | s = s - string + string_new; | |
3656 | string = string_new; | |
3657 | ||
3658 | /* Replace from by to. */ | |
3659 | memmove (&s[to_len], &s[from_len], strlen (&s[from_len]) + 1); | |
3660 | memcpy (s, to, to_len); | |
3661 | ||
3662 | s += to_len; | |
3663 | } | |
3664 | else | |
3665 | s++; | |
3666 | } | |
3667 | ||
3668 | *stringp = string; | |
3669 | } | |
3670 | ||
0b6cb71e DE |
3671 | #ifdef HAVE_WAITPID |
3672 | ||
3673 | #ifdef SIGALRM | |
3674 | ||
3675 | /* SIGALRM handler for waitpid_with_timeout. */ | |
3676 | ||
3677 | static void | |
3678 | sigalrm_handler (int signo) | |
3679 | { | |
3680 | /* Nothing to do. */ | |
3681 | } | |
3682 | ||
3683 | #endif | |
3684 | ||
3685 | /* Wrapper to wait for child PID to die with TIMEOUT. | |
3686 | TIMEOUT is the time to stop waiting in seconds. | |
3687 | If TIMEOUT is zero, pass WNOHANG to waitpid. | |
3688 | Returns PID if it was successfully waited for, otherwise -1. | |
3689 | ||
3690 | Timeouts are currently implemented with alarm and SIGALRM. | |
3691 | If the host does not support them, this waits "forever". | |
3692 | It would be odd though for a host to have waitpid and not SIGALRM. */ | |
3693 | ||
3694 | pid_t | |
3695 | wait_to_die_with_timeout (pid_t pid, int *status, int timeout) | |
3696 | { | |
3697 | pid_t waitpid_result; | |
3698 | ||
3699 | gdb_assert (pid > 0); | |
3700 | gdb_assert (timeout >= 0); | |
3701 | ||
3702 | if (timeout > 0) | |
3703 | { | |
3704 | #ifdef SIGALRM | |
3705 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3706 | struct sigaction sa, old_sa; | |
3707 | ||
3708 | sa.sa_handler = sigalrm_handler; | |
3709 | sigemptyset (&sa.sa_mask); | |
3710 | sa.sa_flags = 0; | |
3711 | sigaction (SIGALRM, &sa, &old_sa); | |
3712 | #else | |
3713 | void (*ofunc) (); | |
3714 | ||
3715 | ofunc = (void (*)()) signal (SIGALRM, sigalrm_handler); | |
3716 | #endif | |
3717 | ||
3718 | alarm (timeout); | |
3719 | #endif | |
3720 | ||
3721 | waitpid_result = waitpid (pid, status, 0); | |
3722 | ||
3723 | #ifdef SIGALRM | |
3724 | alarm (0); | |
3725 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3726 | sigaction (SIGALRM, &old_sa, NULL); | |
3727 | #else | |
3728 | signal (SIGALRM, ofunc); | |
3729 | #endif | |
3730 | #endif | |
3731 | } | |
3732 | else | |
3733 | waitpid_result = waitpid (pid, status, WNOHANG); | |
3734 | ||
3735 | if (waitpid_result == pid) | |
3736 | return pid; | |
3737 | else | |
3738 | return -1; | |
3739 | } | |
3740 | ||
3741 | #endif /* HAVE_WAITPID */ | |
3742 | ||
202cbf1c JK |
3743 | /* Provide fnmatch compatible function for FNM_FILE_NAME matching of host files. |
3744 | Both FNM_FILE_NAME and FNM_NOESCAPE must be set in FLAGS. | |
3745 | ||
3746 | It handles correctly HAVE_DOS_BASED_FILE_SYSTEM and | |
3747 | HAVE_CASE_INSENSITIVE_FILE_SYSTEM. */ | |
3748 | ||
3749 | int | |
3750 | gdb_filename_fnmatch (const char *pattern, const char *string, int flags) | |
3751 | { | |
3752 | gdb_assert ((flags & FNM_FILE_NAME) != 0); | |
3753 | ||
3754 | /* It is unclear how '\' escaping vs. directory separator should coexist. */ | |
3755 | gdb_assert ((flags & FNM_NOESCAPE) != 0); | |
3756 | ||
3757 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3758 | { | |
3759 | char *pattern_slash, *string_slash; | |
3760 | ||
3761 | /* Replace '\' by '/' in both strings. */ | |
3762 | ||
3763 | pattern_slash = alloca (strlen (pattern) + 1); | |
3764 | strcpy (pattern_slash, pattern); | |
3765 | pattern = pattern_slash; | |
3766 | for (; *pattern_slash != 0; pattern_slash++) | |
3767 | if (IS_DIR_SEPARATOR (*pattern_slash)) | |
3768 | *pattern_slash = '/'; | |
3769 | ||
3770 | string_slash = alloca (strlen (string) + 1); | |
3771 | strcpy (string_slash, string); | |
3772 | string = string_slash; | |
3773 | for (; *string_slash != 0; string_slash++) | |
3774 | if (IS_DIR_SEPARATOR (*string_slash)) | |
3775 | *string_slash = '/'; | |
3776 | } | |
3777 | #endif /* HAVE_DOS_BASED_FILE_SYSTEM */ | |
3778 | ||
3779 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
3780 | flags |= FNM_CASEFOLD; | |
3781 | #endif /* HAVE_CASE_INSENSITIVE_FILE_SYSTEM */ | |
3782 | ||
3783 | return fnmatch (pattern, string, flags); | |
3784 | } | |
3785 | ||
2c0b251b PA |
3786 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
3787 | extern initialize_file_ftype _initialize_utils; | |
3788 | ||
3c16cced PA |
3789 | void |
3790 | _initialize_utils (void) | |
3791 | { | |
3792 | add_internal_problem_command (&internal_error_problem); | |
3793 | add_internal_problem_command (&internal_warning_problem); | |
3794 | } |