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 | |
c906108c SS |
92 | /* readline defines this. */ |
93 | #undef savestring | |
94 | ||
9a4105ab | 95 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
96 | |
97 | /* Prototypes for local functions */ | |
98 | ||
d9fcf2fb | 99 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
a0b31db1 | 100 | va_list, int) ATTRIBUTE_PRINTF (2, 0); |
c906108c | 101 | |
d9fcf2fb | 102 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 103 | |
a14ed312 | 104 | static void prompt_for_continue (void); |
c906108c | 105 | |
eb0d3137 | 106 | static void set_screen_size (void); |
a14ed312 | 107 | static void set_width (void); |
c906108c | 108 | |
260c0b2a DE |
109 | /* Time spent in prompt_for_continue in the currently executing command |
110 | waiting for user to respond. | |
111 | Initialized in make_command_stats_cleanup. | |
112 | Modified in prompt_for_continue and defaulted_query. | |
113 | Used in report_command_stats. */ | |
114 | ||
115 | static struct timeval prompt_for_continue_wait_time; | |
116 | ||
75feb17d DJ |
117 | /* A flag indicating whether to timestamp debugging messages. */ |
118 | ||
119 | static int debug_timestamp = 0; | |
120 | ||
581e13c1 | 121 | /* Nonzero if we have job control. */ |
c906108c SS |
122 | |
123 | int job_control; | |
124 | ||
522002f9 | 125 | #ifndef HAVE_PYTHON |
c906108c SS |
126 | /* Nonzero means a quit has been requested. */ |
127 | ||
128 | int quit_flag; | |
522002f9 | 129 | #endif /* HAVE_PYTHON */ |
c906108c SS |
130 | |
131 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
132 | than waiting until QUIT is executed. Be careful in setting this; | |
133 | code which executes with immediate_quit set has to be very careful | |
134 | about being able to deal with being interrupted at any time. It is | |
135 | almost always better to use QUIT; the only exception I can think of | |
136 | is being able to quit out of a system call (using EINTR loses if | |
137 | the SIGINT happens between the previous QUIT and the system call). | |
138 | To immediately quit in the case in which a SIGINT happens between | |
139 | the previous QUIT and setting immediate_quit (desirable anytime we | |
140 | expect to block), call QUIT after setting immediate_quit. */ | |
141 | ||
142 | int immediate_quit; | |
143 | ||
522002f9 TT |
144 | #ifndef HAVE_PYTHON |
145 | ||
146 | /* Clear the quit flag. */ | |
147 | ||
148 | void | |
149 | clear_quit_flag (void) | |
150 | { | |
151 | quit_flag = 0; | |
152 | } | |
153 | ||
154 | /* Set the quit flag. */ | |
155 | ||
156 | void | |
157 | set_quit_flag (void) | |
158 | { | |
159 | quit_flag = 1; | |
160 | } | |
161 | ||
162 | /* Return true if the quit flag has been set, false otherwise. */ | |
163 | ||
164 | int | |
165 | check_quit_flag (void) | |
166 | { | |
167 | /* This is written in a particular way to avoid races. */ | |
168 | if (quit_flag) | |
169 | { | |
170 | quit_flag = 0; | |
171 | return 1; | |
172 | } | |
173 | ||
174 | return 0; | |
175 | } | |
176 | ||
177 | #endif /* HAVE_PYTHON */ | |
178 | ||
c906108c SS |
179 | /* Nonzero means that strings with character values >0x7F should be printed |
180 | as octal escapes. Zero means just print the value (e.g. it's an | |
181 | international character, and the terminal or window can cope.) */ | |
182 | ||
183 | int sevenbit_strings = 0; | |
920d2a44 AC |
184 | static void |
185 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
186 | struct cmd_list_element *c, const char *value) | |
187 | { | |
3e43a32a MS |
188 | fprintf_filtered (file, _("Printing of 8-bit characters " |
189 | "in strings as \\nnn is %s.\n"), | |
920d2a44 AC |
190 | value); |
191 | } | |
c906108c SS |
192 | |
193 | /* String to be printed before error messages, if any. */ | |
194 | ||
195 | char *error_pre_print; | |
196 | ||
197 | /* String to be printed before quit messages, if any. */ | |
198 | ||
199 | char *quit_pre_print; | |
200 | ||
201 | /* String to be printed before warning messages, if any. */ | |
202 | ||
203 | char *warning_pre_print = "\nwarning: "; | |
204 | ||
205 | int pagination_enabled = 1; | |
920d2a44 AC |
206 | static void |
207 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
208 | struct cmd_list_element *c, const char *value) | |
209 | { | |
210 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
211 | } | |
212 | ||
c906108c | 213 | \f |
c27f5738 | 214 | /* Cleanup utilities. |
c5aa993b | 215 | |
c27f5738 DE |
216 | These are not defined in cleanups.c (nor declared in cleanups.h) |
217 | because while they use the "cleanup API" they are not part of the | |
218 | "cleanup API". */ | |
7a292a7a | 219 | |
7a292a7a | 220 | static void |
fba45db2 | 221 | do_freeargv (void *arg) |
7a292a7a | 222 | { |
c5aa993b | 223 | freeargv ((char **) arg); |
7a292a7a SS |
224 | } |
225 | ||
226 | struct cleanup * | |
fba45db2 | 227 | make_cleanup_freeargv (char **arg) |
7a292a7a | 228 | { |
e0088cfd | 229 | return make_cleanup (do_freeargv, arg); |
7a292a7a SS |
230 | } |
231 | ||
5a56e9c5 DE |
232 | static void |
233 | do_dyn_string_delete (void *arg) | |
234 | { | |
235 | dyn_string_delete ((dyn_string_t) arg); | |
236 | } | |
237 | ||
238 | struct cleanup * | |
239 | make_cleanup_dyn_string_delete (dyn_string_t arg) | |
240 | { | |
e0088cfd | 241 | return make_cleanup (do_dyn_string_delete, arg); |
5a56e9c5 DE |
242 | } |
243 | ||
5c65bbb6 AC |
244 | static void |
245 | do_bfd_close_cleanup (void *arg) | |
246 | { | |
cbb099e8 | 247 | gdb_bfd_unref (arg); |
5c65bbb6 AC |
248 | } |
249 | ||
250 | struct cleanup * | |
f9a062ff | 251 | make_cleanup_bfd_unref (bfd *abfd) |
5c65bbb6 AC |
252 | { |
253 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
254 | } | |
255 | ||
f5ff8c83 AC |
256 | static void |
257 | do_close_cleanup (void *arg) | |
258 | { | |
f042532c | 259 | int *fd = arg; |
e0627e85 | 260 | |
f042532c | 261 | close (*fd); |
f5ff8c83 AC |
262 | } |
263 | ||
264 | struct cleanup * | |
265 | make_cleanup_close (int fd) | |
266 | { | |
f042532c | 267 | int *saved_fd = xmalloc (sizeof (fd)); |
e0627e85 | 268 | |
f042532c | 269 | *saved_fd = fd; |
a05016c0 | 270 | return make_cleanup_dtor (do_close_cleanup, saved_fd, xfree); |
f5ff8c83 AC |
271 | } |
272 | ||
7c8a8b04 TT |
273 | /* Helper function which does the work for make_cleanup_fclose. */ |
274 | ||
275 | static void | |
276 | do_fclose_cleanup (void *arg) | |
277 | { | |
c02866a0 | 278 | FILE *file = arg; |
e0627e85 | 279 | |
c02866a0 | 280 | fclose (file); |
7c8a8b04 TT |
281 | } |
282 | ||
283 | /* Return a new cleanup that closes FILE. */ | |
284 | ||
285 | struct cleanup * | |
286 | make_cleanup_fclose (FILE *file) | |
287 | { | |
288 | return make_cleanup (do_fclose_cleanup, file); | |
289 | } | |
290 | ||
16ad9370 TT |
291 | /* Helper function which does the work for make_cleanup_obstack_free. */ |
292 | ||
293 | static void | |
294 | do_obstack_free (void *arg) | |
295 | { | |
296 | struct obstack *ob = arg; | |
e0627e85 | 297 | |
16ad9370 TT |
298 | obstack_free (ob, NULL); |
299 | } | |
300 | ||
301 | /* Return a new cleanup that frees OBSTACK. */ | |
302 | ||
303 | struct cleanup * | |
304 | make_cleanup_obstack_free (struct obstack *obstack) | |
305 | { | |
306 | return make_cleanup (do_obstack_free, obstack); | |
307 | } | |
308 | ||
11cf8741 | 309 | static void |
d9fcf2fb | 310 | do_ui_file_delete (void *arg) |
11cf8741 | 311 | { |
d9fcf2fb | 312 | ui_file_delete (arg); |
11cf8741 JM |
313 | } |
314 | ||
315 | struct cleanup * | |
d9fcf2fb | 316 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 317 | { |
e0088cfd | 318 | return make_cleanup (do_ui_file_delete, arg); |
11cf8741 JM |
319 | } |
320 | ||
8d4d924b JK |
321 | /* Helper function for make_cleanup_ui_out_redirect_pop. */ |
322 | ||
323 | static void | |
324 | do_ui_out_redirect_pop (void *arg) | |
325 | { | |
326 | struct ui_out *uiout = arg; | |
327 | ||
328 | if (ui_out_redirect (uiout, NULL) < 0) | |
329 | warning (_("Cannot restore redirection of the current output protocol")); | |
330 | } | |
331 | ||
332 | /* Return a new cleanup that pops the last redirection by ui_out_redirect | |
333 | with NULL parameter. */ | |
334 | ||
335 | struct cleanup * | |
336 | make_cleanup_ui_out_redirect_pop (struct ui_out *uiout) | |
337 | { | |
e0088cfd | 338 | return make_cleanup (do_ui_out_redirect_pop, uiout); |
8d4d924b JK |
339 | } |
340 | ||
7b90c3f9 JB |
341 | static void |
342 | do_free_section_addr_info (void *arg) | |
343 | { | |
344 | free_section_addr_info (arg); | |
345 | } | |
346 | ||
347 | struct cleanup * | |
348 | make_cleanup_free_section_addr_info (struct section_addr_info *addrs) | |
349 | { | |
e0088cfd | 350 | return make_cleanup (do_free_section_addr_info, addrs); |
7b90c3f9 JB |
351 | } |
352 | ||
0b080f59 VP |
353 | struct restore_integer_closure |
354 | { | |
355 | int *variable; | |
356 | int value; | |
357 | }; | |
358 | ||
359 | static void | |
360 | restore_integer (void *p) | |
361 | { | |
362 | struct restore_integer_closure *closure = p; | |
e0627e85 | 363 | |
0b080f59 VP |
364 | *(closure->variable) = closure->value; |
365 | } | |
7b90c3f9 | 366 | |
3e43a32a MS |
367 | /* Remember the current value of *VARIABLE and make it restored when |
368 | the cleanup is run. */ | |
5da1313b | 369 | |
c906108c | 370 | struct cleanup * |
0b080f59 VP |
371 | make_cleanup_restore_integer (int *variable) |
372 | { | |
373 | struct restore_integer_closure *c = | |
374 | xmalloc (sizeof (struct restore_integer_closure)); | |
e0627e85 | 375 | |
0b080f59 VP |
376 | c->variable = variable; |
377 | c->value = *variable; | |
378 | ||
e0088cfd | 379 | return make_cleanup_dtor (restore_integer, (void *) c, xfree); |
0b080f59 VP |
380 | } |
381 | ||
3e43a32a MS |
382 | /* Remember the current value of *VARIABLE and make it restored when |
383 | the cleanup is run. */ | |
5da1313b JK |
384 | |
385 | struct cleanup * | |
386 | make_cleanup_restore_uinteger (unsigned int *variable) | |
387 | { | |
388 | return make_cleanup_restore_integer ((int *) variable); | |
389 | } | |
390 | ||
c0edd9ed JK |
391 | /* Helper for make_cleanup_unpush_target. */ |
392 | ||
393 | static void | |
394 | do_unpush_target (void *arg) | |
395 | { | |
396 | struct target_ops *ops = arg; | |
397 | ||
398 | unpush_target (ops); | |
399 | } | |
400 | ||
401 | /* Return a new cleanup that unpushes OPS. */ | |
402 | ||
403 | struct cleanup * | |
404 | make_cleanup_unpush_target (struct target_ops *ops) | |
405 | { | |
e0088cfd | 406 | return make_cleanup (do_unpush_target, ops); |
c0edd9ed JK |
407 | } |
408 | ||
8e3b41a9 JK |
409 | /* Helper for make_cleanup_htab_delete compile time checking the types. */ |
410 | ||
411 | static void | |
412 | do_htab_delete_cleanup (void *htab_voidp) | |
413 | { | |
414 | htab_t htab = htab_voidp; | |
415 | ||
416 | htab_delete (htab); | |
417 | } | |
418 | ||
419 | /* Return a new cleanup that deletes HTAB. */ | |
420 | ||
421 | struct cleanup * | |
422 | make_cleanup_htab_delete (htab_t htab) | |
423 | { | |
424 | return make_cleanup (do_htab_delete_cleanup, htab); | |
425 | } | |
426 | ||
5da1313b JK |
427 | struct restore_ui_file_closure |
428 | { | |
429 | struct ui_file **variable; | |
430 | struct ui_file *value; | |
431 | }; | |
432 | ||
433 | static void | |
434 | do_restore_ui_file (void *p) | |
435 | { | |
436 | struct restore_ui_file_closure *closure = p; | |
437 | ||
438 | *(closure->variable) = closure->value; | |
439 | } | |
440 | ||
441 | /* Remember the current value of *VARIABLE and make it restored when | |
442 | the cleanup is run. */ | |
443 | ||
444 | struct cleanup * | |
445 | make_cleanup_restore_ui_file (struct ui_file **variable) | |
446 | { | |
447 | struct restore_ui_file_closure *c = XNEW (struct restore_ui_file_closure); | |
448 | ||
449 | c->variable = variable; | |
450 | c->value = *variable; | |
451 | ||
452 | return make_cleanup_dtor (do_restore_ui_file, (void *) c, xfree); | |
453 | } | |
454 | ||
028d0ed5 TJB |
455 | /* Helper for make_cleanup_value_free_to_mark. */ |
456 | ||
457 | static void | |
458 | do_value_free_to_mark (void *value) | |
459 | { | |
460 | value_free_to_mark ((struct value *) value); | |
461 | } | |
462 | ||
463 | /* Free all values allocated since MARK was obtained by value_mark | |
464 | (except for those released) when the cleanup is run. */ | |
465 | ||
466 | struct cleanup * | |
467 | make_cleanup_value_free_to_mark (struct value *mark) | |
468 | { | |
e0088cfd | 469 | return make_cleanup (do_value_free_to_mark, mark); |
028d0ed5 TJB |
470 | } |
471 | ||
72fc29ff TT |
472 | /* Helper for make_cleanup_value_free. */ |
473 | ||
474 | static void | |
475 | do_value_free (void *value) | |
476 | { | |
477 | value_free (value); | |
478 | } | |
479 | ||
480 | /* Free VALUE. */ | |
481 | ||
482 | struct cleanup * | |
483 | make_cleanup_value_free (struct value *value) | |
484 | { | |
e0088cfd | 485 | return make_cleanup (do_value_free, value); |
72fc29ff TT |
486 | } |
487 | ||
cb08cc53 JK |
488 | /* Helper for make_cleanup_free_so. */ |
489 | ||
490 | static void | |
491 | do_free_so (void *arg) | |
492 | { | |
493 | struct so_list *so = arg; | |
494 | ||
495 | free_so (so); | |
496 | } | |
497 | ||
498 | /* Make cleanup handler calling free_so for SO. */ | |
499 | ||
500 | struct cleanup * | |
501 | make_cleanup_free_so (struct so_list *so) | |
502 | { | |
e0088cfd | 503 | return make_cleanup (do_free_so, so); |
cb08cc53 JK |
504 | } |
505 | ||
5b12a61c JK |
506 | /* Helper for make_cleanup_restore_current_language. */ |
507 | ||
508 | static void | |
509 | do_restore_current_language (void *p) | |
510 | { | |
511 | enum language saved_lang = (uintptr_t) p; | |
512 | ||
513 | set_language (saved_lang); | |
514 | } | |
515 | ||
516 | /* Remember the current value of CURRENT_LANGUAGE and make it restored when | |
517 | the cleanup is run. */ | |
518 | ||
519 | struct cleanup * | |
520 | make_cleanup_restore_current_language (void) | |
521 | { | |
522 | enum language saved_lang = current_language->la_language; | |
523 | ||
524 | return make_cleanup (do_restore_current_language, | |
525 | (void *) (uintptr_t) saved_lang); | |
526 | } | |
527 | ||
c906108c SS |
528 | /* This function is useful for cleanups. |
529 | Do | |
530 | ||
c5aa993b JM |
531 | foo = xmalloc (...); |
532 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
533 | |
534 | to arrange to free the object thus allocated. */ | |
535 | ||
536 | void | |
2f9429ae | 537 | free_current_contents (void *ptr) |
c906108c | 538 | { |
2f9429ae | 539 | void **location = ptr; |
e0627e85 | 540 | |
e2f9c474 | 541 | if (location == NULL) |
8e65ff28 | 542 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 543 | _("free_current_contents: NULL pointer")); |
2f9429ae | 544 | if (*location != NULL) |
e2f9c474 | 545 | { |
b8c9b27d | 546 | xfree (*location); |
e2f9c474 AC |
547 | *location = NULL; |
548 | } | |
c906108c SS |
549 | } |
550 | ||
0f3bb72e PH |
551 | /* If nonzero, display time usage both at startup and for each command. */ |
552 | ||
553 | static int display_time; | |
554 | ||
555 | /* If nonzero, display space usage both at startup and for each command. */ | |
556 | ||
557 | static int display_space; | |
558 | ||
559 | /* Records a run time and space usage to be used as a base for | |
560 | reporting elapsed time or change in space. In addition, | |
561 | the msg_type field indicates whether the saved time is from the | |
562 | beginning of GDB execution (0) or the beginning of an individual | |
563 | command execution (1). */ | |
564 | struct cmd_stats | |
565 | { | |
566 | int msg_type; | |
0a1c4d10 DE |
567 | long start_cpu_time; |
568 | struct timeval start_wall_time; | |
0f3bb72e PH |
569 | long start_space; |
570 | }; | |
571 | ||
572 | /* Set whether to display time statistics to NEW_VALUE (non-zero | |
573 | means true). */ | |
574 | void | |
575 | set_display_time (int new_value) | |
576 | { | |
577 | display_time = new_value; | |
578 | } | |
579 | ||
580 | /* Set whether to display space statistics to NEW_VALUE (non-zero | |
581 | means true). */ | |
582 | void | |
583 | set_display_space (int new_value) | |
584 | { | |
585 | display_space = new_value; | |
586 | } | |
587 | ||
588 | /* As indicated by display_time and display_space, report GDB's elapsed time | |
589 | and space usage from the base time and space provided in ARG, which | |
581e13c1 MS |
590 | must be a pointer to a struct cmd_stat. This function is intended |
591 | to be called as a cleanup. */ | |
0f3bb72e PH |
592 | static void |
593 | report_command_stats (void *arg) | |
594 | { | |
595 | struct cmd_stats *start_stats = (struct cmd_stats *) arg; | |
596 | int msg_type = start_stats->msg_type; | |
597 | ||
598 | if (display_time) | |
599 | { | |
0a1c4d10 DE |
600 | long cmd_time = get_run_time () - start_stats->start_cpu_time; |
601 | struct timeval now_wall_time, delta_wall_time; | |
602 | ||
603 | gettimeofday (&now_wall_time, NULL); | |
604 | timeval_sub (&delta_wall_time, | |
605 | &now_wall_time, &start_stats->start_wall_time); | |
0f3bb72e | 606 | |
260c0b2a DE |
607 | /* Subtract time spend in prompt_for_continue from walltime. */ |
608 | timeval_sub (&delta_wall_time, | |
609 | &delta_wall_time, &prompt_for_continue_wait_time); | |
610 | ||
0f3bb72e | 611 | printf_unfiltered (msg_type == 0 |
0a1c4d10 DE |
612 | ? _("Startup time: %ld.%06ld (cpu), %ld.%06ld (wall)\n") |
613 | : _("Command execution time: %ld.%06ld (cpu), %ld.%06ld (wall)\n"), | |
614 | cmd_time / 1000000, cmd_time % 1000000, | |
2b54dda2 DM |
615 | (long) delta_wall_time.tv_sec, |
616 | (long) delta_wall_time.tv_usec); | |
0f3bb72e PH |
617 | } |
618 | ||
619 | if (display_space) | |
620 | { | |
621 | #ifdef HAVE_SBRK | |
622 | char *lim = (char *) sbrk (0); | |
623 | ||
624 | long space_now = lim - lim_at_start; | |
625 | long space_diff = space_now - start_stats->start_space; | |
626 | ||
627 | printf_unfiltered (msg_type == 0 | |
5d901a73 TT |
628 | ? _("Space used: %ld (%s%ld during startup)\n") |
629 | : _("Space used: %ld (%s%ld for this command)\n"), | |
0f3bb72e | 630 | space_now, |
5d901a73 | 631 | (space_diff >= 0 ? "+" : ""), |
0f3bb72e PH |
632 | space_diff); |
633 | #endif | |
634 | } | |
635 | } | |
636 | ||
637 | /* Create a cleanup that reports time and space used since its | |
638 | creation. Precise messages depend on MSG_TYPE: | |
639 | 0: Initial time/space | |
640 | 1: Individual command time/space. */ | |
641 | struct cleanup * | |
642 | make_command_stats_cleanup (int msg_type) | |
643 | { | |
260c0b2a | 644 | static const struct timeval zero_timeval = { 0 }; |
0f3bb72e PH |
645 | struct cmd_stats *new_stat = XMALLOC (struct cmd_stats); |
646 | ||
647 | #ifdef HAVE_SBRK | |
648 | char *lim = (char *) sbrk (0); | |
649 | new_stat->start_space = lim - lim_at_start; | |
650 | #endif | |
651 | ||
652 | new_stat->msg_type = msg_type; | |
0a1c4d10 DE |
653 | new_stat->start_cpu_time = get_run_time (); |
654 | gettimeofday (&new_stat->start_wall_time, NULL); | |
0f3bb72e | 655 | |
260c0b2a DE |
656 | /* Initalize timer to keep track of how long we waited for the user. */ |
657 | prompt_for_continue_wait_time = zero_timeval; | |
658 | ||
0f3bb72e PH |
659 | return make_cleanup_dtor (report_command_stats, new_stat, xfree); |
660 | } | |
c906108c | 661 | \f |
c5aa993b | 662 | |
8731e58e | 663 | |
f5a96129 AC |
664 | /* Print a warning message. The first argument STRING is the warning |
665 | message, used as an fprintf format string, the second is the | |
666 | va_list of arguments for that string. A warning is unfiltered (not | |
667 | paginated) so that the user does not need to page through each | |
668 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
669 | |
670 | void | |
f5a96129 | 671 | vwarning (const char *string, va_list args) |
c906108c | 672 | { |
9a4105ab AC |
673 | if (deprecated_warning_hook) |
674 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
675 | else |
676 | { | |
677 | target_terminal_ours (); | |
581e13c1 | 678 | wrap_here (""); /* Force out any buffered output. */ |
f5a96129 AC |
679 | gdb_flush (gdb_stdout); |
680 | if (warning_pre_print) | |
306d9ac5 | 681 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
682 | vfprintf_unfiltered (gdb_stderr, string, args); |
683 | fprintf_unfiltered (gdb_stderr, "\n"); | |
684 | va_end (args); | |
685 | } | |
c906108c SS |
686 | } |
687 | ||
688 | /* Print a warning message. | |
689 | The first argument STRING is the warning message, used as a fprintf string, | |
690 | and the remaining args are passed as arguments to it. | |
691 | The primary difference between warnings and errors is that a warning | |
692 | does not force the return to command level. */ | |
693 | ||
c906108c | 694 | void |
8731e58e | 695 | warning (const char *string, ...) |
c906108c SS |
696 | { |
697 | va_list args; | |
e0627e85 | 698 | |
c906108c | 699 | va_start (args, string); |
f5a96129 AC |
700 | vwarning (string, args); |
701 | va_end (args); | |
c906108c SS |
702 | } |
703 | ||
c906108c SS |
704 | /* Print an error message and return to command level. |
705 | The first argument STRING is the error message, used as a fprintf string, | |
706 | and the remaining args are passed as arguments to it. */ | |
707 | ||
c25c4a8b | 708 | void |
4ce44c66 JM |
709 | verror (const char *string, va_list args) |
710 | { | |
6b1b7650 | 711 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
712 | } |
713 | ||
c25c4a8b | 714 | void |
8731e58e | 715 | error (const char *string, ...) |
c906108c SS |
716 | { |
717 | va_list args; | |
e0627e85 | 718 | |
c906108c | 719 | va_start (args, string); |
6b1b7650 | 720 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 | 721 | va_end (args); |
c906108c SS |
722 | } |
723 | ||
d75e3c94 JJ |
724 | /* Print an error message and quit. |
725 | The first argument STRING is the error message, used as a fprintf string, | |
726 | and the remaining args are passed as arguments to it. */ | |
727 | ||
c25c4a8b | 728 | void |
d75e3c94 JJ |
729 | vfatal (const char *string, va_list args) |
730 | { | |
6b1b7650 | 731 | throw_vfatal (string, args); |
d75e3c94 JJ |
732 | } |
733 | ||
c25c4a8b | 734 | void |
d75e3c94 JJ |
735 | fatal (const char *string, ...) |
736 | { | |
737 | va_list args; | |
e0627e85 | 738 | |
d75e3c94 | 739 | va_start (args, string); |
6b1b7650 | 740 | throw_vfatal (string, args); |
d75e3c94 JJ |
741 | va_end (args); |
742 | } | |
743 | ||
c25c4a8b | 744 | void |
d75e3c94 | 745 | error_stream (struct ui_file *stream) |
2acceee2 | 746 | { |
759ef836 | 747 | char *message = ui_file_xstrdup (stream, NULL); |
e0627e85 | 748 | |
6b1b7650 | 749 | make_cleanup (xfree, message); |
8a3fe4f8 | 750 | error (("%s"), message); |
2acceee2 | 751 | } |
c906108c | 752 | |
7991dee7 JK |
753 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
754 | ||
755 | static void | |
756 | dump_core (void) | |
757 | { | |
758 | #ifdef HAVE_SETRLIMIT | |
759 | struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY }; | |
760 | ||
761 | setrlimit (RLIMIT_CORE, &rlim); | |
762 | #endif /* HAVE_SETRLIMIT */ | |
763 | ||
764 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
765 | } | |
766 | ||
3e43a32a MS |
767 | /* Check whether GDB will be able to dump core using the dump_core |
768 | function. */ | |
7991dee7 JK |
769 | |
770 | static int | |
771 | can_dump_core (const char *reason) | |
772 | { | |
773 | #ifdef HAVE_GETRLIMIT | |
774 | struct rlimit rlim; | |
775 | ||
776 | /* Be quiet and assume we can dump if an error is returned. */ | |
777 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
778 | return 1; | |
779 | ||
780 | if (rlim.rlim_max == 0) | |
781 | { | |
782 | fprintf_unfiltered (gdb_stderr, | |
3e43a32a MS |
783 | _("%s\nUnable to dump core, use `ulimit -c" |
784 | " unlimited' before executing GDB next time.\n"), | |
785 | reason); | |
7991dee7 JK |
786 | return 0; |
787 | } | |
788 | #endif /* HAVE_GETRLIMIT */ | |
789 | ||
790 | return 1; | |
791 | } | |
792 | ||
3c16cced PA |
793 | /* Allow the user to configure the debugger behavior with respect to |
794 | what to do when an internal problem is detected. */ | |
795 | ||
796 | const char internal_problem_ask[] = "ask"; | |
797 | const char internal_problem_yes[] = "yes"; | |
798 | const char internal_problem_no[] = "no"; | |
40478521 | 799 | static const char *const internal_problem_modes[] = |
3c16cced PA |
800 | { |
801 | internal_problem_ask, | |
802 | internal_problem_yes, | |
803 | internal_problem_no, | |
804 | NULL | |
805 | }; | |
3c16cced | 806 | |
581e13c1 | 807 | /* Print a message reporting an internal error/warning. Ask the user |
dec43320 AC |
808 | if they want to continue, dump core, or just exit. Return |
809 | something to indicate a quit. */ | |
c906108c | 810 | |
dec43320 | 811 | struct internal_problem |
c906108c | 812 | { |
dec43320 | 813 | const char *name; |
3c16cced PA |
814 | const char *should_quit; |
815 | const char *should_dump_core; | |
dec43320 AC |
816 | }; |
817 | ||
818 | /* Report a problem, internal to GDB, to the user. Once the problem | |
819 | has been reported, and assuming GDB didn't quit, the caller can | |
820 | either allow execution to resume or throw an error. */ | |
821 | ||
a0b31db1 | 822 | static void ATTRIBUTE_PRINTF (4, 0) |
dec43320 | 823 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 824 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 825 | { |
dec43320 | 826 | static int dejavu; |
375fc983 | 827 | int quit_p; |
7be570e7 | 828 | int dump_core_p; |
714b1282 | 829 | char *reason; |
c906108c | 830 | |
dec43320 | 831 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
832 | { |
833 | static char msg[] = "Recursive internal problem.\n"; | |
5d502164 | 834 | |
714b1282 AC |
835 | switch (dejavu) |
836 | { | |
837 | case 0: | |
838 | dejavu = 1; | |
839 | break; | |
840 | case 1: | |
841 | dejavu = 2; | |
842 | fputs_unfiltered (msg, gdb_stderr); | |
7991dee7 | 843 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
844 | default: |
845 | dejavu = 3; | |
bf1d7d9c JB |
846 | /* Newer GLIBC versions put the warn_unused_result attribute |
847 | on write, but this is one of those rare cases where | |
848 | ignoring the return value is correct. Casting to (void) | |
849 | does not fix this problem. This is the solution suggested | |
850 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
851 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
7991dee7 | 852 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
853 | exit (1); |
854 | } | |
855 | } | |
c906108c | 856 | |
dec43320 | 857 | /* Try to get the message out and at the start of a new line. */ |
4261bedc | 858 | target_terminal_ours (); |
dec43320 AC |
859 | begin_line (); |
860 | ||
714b1282 AC |
861 | /* Create a string containing the full error/warning message. Need |
862 | to call query with this full string, as otherwize the reason | |
863 | (error/warning) and question become separated. Format using a | |
864 | style similar to a compiler error message. Include extra detail | |
865 | so that the user knows that they are living on the edge. */ | |
866 | { | |
867 | char *msg; | |
5d502164 | 868 | |
e623b504 | 869 | msg = xstrvprintf (fmt, ap); |
3e43a32a MS |
870 | reason = xstrprintf ("%s:%d: %s: %s\n" |
871 | "A problem internal to GDB has been detected,\n" | |
872 | "further debugging may prove unreliable.", | |
873 | file, line, problem->name, msg); | |
714b1282 AC |
874 | xfree (msg); |
875 | make_cleanup (xfree, reason); | |
876 | } | |
7be570e7 | 877 | |
3c16cced | 878 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 879 | { |
dec43320 | 880 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
881 | this lessens the likelihood of GDB going into an infinite |
882 | loop. */ | |
e360902b | 883 | if (!confirm) |
26bb68be PP |
884 | { |
885 | /* Emit the message and quit. */ | |
886 | fputs_unfiltered (reason, gdb_stderr); | |
887 | fputs_unfiltered ("\n", gdb_stderr); | |
888 | quit_p = 1; | |
889 | } | |
890 | else | |
891 | quit_p = query (_("%s\nQuit this debugging session? "), reason); | |
dec43320 | 892 | } |
3c16cced PA |
893 | else if (problem->should_quit == internal_problem_yes) |
894 | quit_p = 1; | |
895 | else if (problem->should_quit == internal_problem_no) | |
896 | quit_p = 0; | |
897 | else | |
898 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 899 | |
3c16cced | 900 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 901 | { |
7991dee7 JK |
902 | if (!can_dump_core (reason)) |
903 | dump_core_p = 0; | |
904 | else | |
905 | { | |
906 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
907 | `dropping' so that it is easier to see that something went | |
908 | wrong in GDB. */ | |
909 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason); | |
910 | } | |
dec43320 | 911 | } |
3c16cced | 912 | else if (problem->should_dump_core == internal_problem_yes) |
7991dee7 | 913 | dump_core_p = can_dump_core (reason); |
3c16cced PA |
914 | else if (problem->should_dump_core == internal_problem_no) |
915 | dump_core_p = 0; | |
916 | else | |
917 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 918 | |
375fc983 | 919 | if (quit_p) |
7be570e7 JM |
920 | { |
921 | if (dump_core_p) | |
7991dee7 | 922 | dump_core (); |
375fc983 AC |
923 | else |
924 | exit (1); | |
7be570e7 JM |
925 | } |
926 | else | |
927 | { | |
928 | if (dump_core_p) | |
375fc983 | 929 | { |
9b265ec2 | 930 | #ifdef HAVE_WORKING_FORK |
375fc983 | 931 | if (fork () == 0) |
7991dee7 | 932 | dump_core (); |
9b265ec2 | 933 | #endif |
375fc983 | 934 | } |
7be570e7 | 935 | } |
96baa820 JM |
936 | |
937 | dejavu = 0; | |
dec43320 AC |
938 | } |
939 | ||
940 | static struct internal_problem internal_error_problem = { | |
3c16cced | 941 | "internal-error", internal_problem_ask, internal_problem_ask |
dec43320 AC |
942 | }; |
943 | ||
c25c4a8b | 944 | void |
8731e58e | 945 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
946 | { |
947 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
315a522e | 948 | deprecated_throw_reason (RETURN_ERROR); |
c906108c SS |
949 | } |
950 | ||
c25c4a8b | 951 | void |
8e65ff28 | 952 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
953 | { |
954 | va_list ap; | |
e0627e85 | 955 | |
4ce44c66 | 956 | va_start (ap, string); |
8e65ff28 | 957 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
958 | va_end (ap); |
959 | } | |
960 | ||
dec43320 | 961 | static struct internal_problem internal_warning_problem = { |
3c16cced | 962 | "internal-warning", internal_problem_ask, internal_problem_ask |
dec43320 AC |
963 | }; |
964 | ||
965 | void | |
8731e58e | 966 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
967 | { |
968 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
969 | } | |
970 | ||
971 | void | |
972 | internal_warning (const char *file, int line, const char *string, ...) | |
973 | { | |
974 | va_list ap; | |
e0627e85 | 975 | |
dec43320 AC |
976 | va_start (ap, string); |
977 | internal_vwarning (file, line, string, ap); | |
978 | va_end (ap); | |
979 | } | |
980 | ||
3c16cced PA |
981 | /* Dummy functions to keep add_prefix_cmd happy. */ |
982 | ||
983 | static void | |
984 | set_internal_problem_cmd (char *args, int from_tty) | |
985 | { | |
986 | } | |
987 | ||
988 | static void | |
989 | show_internal_problem_cmd (char *args, int from_tty) | |
990 | { | |
991 | } | |
992 | ||
993 | /* When GDB reports an internal problem (error or warning) it gives | |
994 | the user the opportunity to quit GDB and/or create a core file of | |
995 | the current debug session. This function registers a few commands | |
996 | that make it possible to specify that GDB should always or never | |
997 | quit or create a core file, without asking. The commands look | |
998 | like: | |
999 | ||
1000 | maint set PROBLEM-NAME quit ask|yes|no | |
1001 | maint show PROBLEM-NAME quit | |
1002 | maint set PROBLEM-NAME corefile ask|yes|no | |
1003 | maint show PROBLEM-NAME corefile | |
1004 | ||
1005 | Where PROBLEM-NAME is currently "internal-error" or | |
1006 | "internal-warning". */ | |
1007 | ||
1008 | static void | |
1009 | add_internal_problem_command (struct internal_problem *problem) | |
1010 | { | |
1011 | struct cmd_list_element **set_cmd_list; | |
1012 | struct cmd_list_element **show_cmd_list; | |
1013 | char *set_doc; | |
1014 | char *show_doc; | |
1015 | ||
1016 | set_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
1017 | show_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
1018 | *set_cmd_list = NULL; | |
1019 | *show_cmd_list = NULL; | |
1020 | ||
1021 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
1022 | problem->name); | |
1023 | ||
1024 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
1025 | problem->name); | |
1026 | ||
1027 | add_prefix_cmd ((char*) problem->name, | |
1028 | class_maintenance, set_internal_problem_cmd, set_doc, | |
1029 | set_cmd_list, | |
c4f7c687 MK |
1030 | concat ("maintenance set ", problem->name, " ", |
1031 | (char *) NULL), | |
3c16cced PA |
1032 | 0/*allow-unknown*/, &maintenance_set_cmdlist); |
1033 | ||
1034 | add_prefix_cmd ((char*) problem->name, | |
1035 | class_maintenance, show_internal_problem_cmd, show_doc, | |
1036 | show_cmd_list, | |
c4f7c687 MK |
1037 | concat ("maintenance show ", problem->name, " ", |
1038 | (char *) NULL), | |
3c16cced PA |
1039 | 0/*allow-unknown*/, &maintenance_show_cmdlist); |
1040 | ||
3e43a32a MS |
1041 | set_doc = xstrprintf (_("Set whether GDB should quit " |
1042 | "when an %s is detected"), | |
3c16cced | 1043 | problem->name); |
3e43a32a MS |
1044 | show_doc = xstrprintf (_("Show whether GDB will quit " |
1045 | "when an %s is detected"), | |
3c16cced PA |
1046 | problem->name); |
1047 | add_setshow_enum_cmd ("quit", class_maintenance, | |
1048 | internal_problem_modes, | |
1049 | &problem->should_quit, | |
1050 | set_doc, | |
1051 | show_doc, | |
1052 | NULL, /* help_doc */ | |
1053 | NULL, /* setfunc */ | |
1054 | NULL, /* showfunc */ | |
1055 | set_cmd_list, | |
1056 | show_cmd_list); | |
1057 | ||
1eefb858 TT |
1058 | xfree (set_doc); |
1059 | xfree (show_doc); | |
1060 | ||
3e43a32a MS |
1061 | set_doc = xstrprintf (_("Set whether GDB should create a core " |
1062 | "file of GDB when %s is detected"), | |
3c16cced | 1063 | problem->name); |
3e43a32a MS |
1064 | show_doc = xstrprintf (_("Show whether GDB will create a core " |
1065 | "file of GDB when %s is detected"), | |
3c16cced PA |
1066 | problem->name); |
1067 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
1068 | internal_problem_modes, | |
1069 | &problem->should_dump_core, | |
1070 | set_doc, | |
1071 | show_doc, | |
1072 | NULL, /* help_doc */ | |
1073 | NULL, /* setfunc */ | |
1074 | NULL, /* showfunc */ | |
1075 | set_cmd_list, | |
1076 | show_cmd_list); | |
1eefb858 TT |
1077 | |
1078 | xfree (set_doc); | |
1079 | xfree (show_doc); | |
3c16cced PA |
1080 | } |
1081 | ||
c906108c SS |
1082 | /* Print the system error message for errno, and also mention STRING |
1083 | as the file name for which the error was encountered. | |
1084 | Then return to command level. */ | |
1085 | ||
c25c4a8b | 1086 | void |
6972bc8b | 1087 | perror_with_name (const char *string) |
c906108c SS |
1088 | { |
1089 | char *err; | |
1090 | char *combined; | |
1091 | ||
1092 | err = safe_strerror (errno); | |
1093 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1094 | strcpy (combined, string); | |
1095 | strcat (combined, ": "); | |
1096 | strcat (combined, err); | |
1097 | ||
1098 | /* I understand setting these is a matter of taste. Still, some people | |
1099 | may clear errno but not know about bfd_error. Doing this here is not | |
581e13c1 | 1100 | unreasonable. */ |
c906108c SS |
1101 | bfd_set_error (bfd_error_no_error); |
1102 | errno = 0; | |
1103 | ||
8a3fe4f8 | 1104 | error (_("%s."), combined); |
c906108c SS |
1105 | } |
1106 | ||
1107 | /* Print the system error message for ERRCODE, and also mention STRING | |
1108 | as the file name for which the error was encountered. */ | |
1109 | ||
1110 | void | |
6972bc8b | 1111 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
1112 | { |
1113 | char *err; | |
1114 | char *combined; | |
1115 | ||
1116 | err = safe_strerror (errcode); | |
1117 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1118 | strcpy (combined, string); | |
1119 | strcat (combined, ": "); | |
1120 | strcat (combined, err); | |
1121 | ||
1122 | /* We want anything which was printed on stdout to come out first, before | |
1123 | this message. */ | |
1124 | gdb_flush (gdb_stdout); | |
1125 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
1126 | } | |
1127 | ||
1128 | /* Control C eventually causes this to be called, at a convenient time. */ | |
1129 | ||
1130 | void | |
fba45db2 | 1131 | quit (void) |
c906108c | 1132 | { |
7be570e7 JM |
1133 | #ifdef __MSDOS__ |
1134 | /* No steenking SIGINT will ever be coming our way when the | |
1135 | program is resumed. Don't lie. */ | |
e06e2353 | 1136 | fatal ("Quit"); |
7be570e7 | 1137 | #else |
c906108c | 1138 | if (job_control |
8731e58e AC |
1139 | /* If there is no terminal switching for this target, then we can't |
1140 | possibly get screwed by the lack of job control. */ | |
c906108c | 1141 | || current_target.to_terminal_ours == NULL) |
e06e2353 | 1142 | fatal ("Quit"); |
c906108c | 1143 | else |
e06e2353 | 1144 | fatal ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 1145 | #endif |
c906108c SS |
1146 | } |
1147 | ||
c906108c | 1148 | \f |
c906108c | 1149 | /* Called when a memory allocation fails, with the number of bytes of |
581e13c1 | 1150 | memory requested in SIZE. */ |
c906108c | 1151 | |
c25c4a8b | 1152 | void |
d26e3629 | 1153 | malloc_failure (long size) |
c906108c SS |
1154 | { |
1155 | if (size > 0) | |
1156 | { | |
8e65ff28 | 1157 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 1158 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 1159 | size); |
c906108c SS |
1160 | } |
1161 | else | |
1162 | { | |
e2e0b3e5 | 1163 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
1164 | } |
1165 | } | |
1166 | ||
c906108c SS |
1167 | /* My replacement for the read system call. |
1168 | Used like `read' but keeps going if `read' returns too soon. */ | |
1169 | ||
1170 | int | |
fba45db2 | 1171 | myread (int desc, char *addr, int len) |
c906108c | 1172 | { |
52f0bd74 | 1173 | int val; |
c906108c SS |
1174 | int orglen = len; |
1175 | ||
1176 | while (len > 0) | |
1177 | { | |
1178 | val = read (desc, addr, len); | |
1179 | if (val < 0) | |
1180 | return val; | |
1181 | if (val == 0) | |
1182 | return orglen - len; | |
1183 | len -= val; | |
1184 | addr += val; | |
1185 | } | |
1186 | return orglen; | |
1187 | } | |
d26e3629 | 1188 | |
c906108c SS |
1189 | /* Make a copy of the string at PTR with SIZE characters |
1190 | (and add a null character at the end in the copy). | |
1191 | Uses malloc to get the space. Returns the address of the copy. */ | |
1192 | ||
1193 | char * | |
5565b556 | 1194 | savestring (const char *ptr, size_t size) |
c906108c | 1195 | { |
52f0bd74 | 1196 | char *p = (char *) xmalloc (size + 1); |
e0627e85 | 1197 | |
c906108c SS |
1198 | memcpy (p, ptr, size); |
1199 | p[size] = 0; | |
1200 | return p; | |
1201 | } | |
1202 | ||
c906108c | 1203 | void |
aa1ee363 | 1204 | print_spaces (int n, struct ui_file *file) |
c906108c | 1205 | { |
392a587b | 1206 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1207 | } |
1208 | ||
1209 | /* Print a host address. */ | |
1210 | ||
1211 | void | |
ac16bf07 | 1212 | gdb_print_host_address (const void *addr, struct ui_file *stream) |
c906108c | 1213 | { |
ea8992ce | 1214 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 1215 | } |
c906108c | 1216 | \f |
c5aa993b | 1217 | |
dc92e161 TT |
1218 | /* A cleanup function that calls regfree. */ |
1219 | ||
1220 | static void | |
1221 | do_regfree_cleanup (void *r) | |
1222 | { | |
1223 | regfree (r); | |
1224 | } | |
1225 | ||
1226 | /* Create a new cleanup that frees the compiled regular expression R. */ | |
1227 | ||
1228 | struct cleanup * | |
1229 | make_regfree_cleanup (regex_t *r) | |
1230 | { | |
1231 | return make_cleanup (do_regfree_cleanup, r); | |
1232 | } | |
1233 | ||
1234 | /* Return an xmalloc'd error message resulting from a regular | |
1235 | expression compilation failure. */ | |
1236 | ||
1237 | char * | |
1238 | get_regcomp_error (int code, regex_t *rx) | |
1239 | { | |
1240 | size_t length = regerror (code, rx, NULL, 0); | |
1241 | char *result = xmalloc (length); | |
1242 | ||
1243 | regerror (code, rx, result, length); | |
1244 | return result; | |
1245 | } | |
1246 | ||
1247 | \f | |
1248 | ||
981c7f5a | 1249 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 1250 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
1251 | answer is yes, or default the answer to the specified default |
1252 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
1253 | default answer, or '\0' for no default. | |
cbdeadca JJ |
1254 | CTLSTR is the control string and should end in "? ". It should |
1255 | not say how to answer, because we do that. | |
1256 | ARGS are the arguments passed along with the CTLSTR argument to | |
1257 | printf. */ | |
1258 | ||
a0b31db1 | 1259 | static int ATTRIBUTE_PRINTF (1, 0) |
cbdeadca JJ |
1260 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
1261 | { | |
1262 | int answer; | |
1263 | int ans2; | |
1264 | int retval; | |
1265 | int def_value; | |
1266 | char def_answer, not_def_answer; | |
981c7f5a | 1267 | char *y_string, *n_string, *question; |
260c0b2a DE |
1268 | /* Used to add duration we waited for user to respond to |
1269 | prompt_for_continue_wait_time. */ | |
1270 | struct timeval prompt_started, prompt_ended, prompt_delta; | |
cbdeadca JJ |
1271 | |
1272 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
1273 | if (defchar == '\0') |
1274 | { | |
1275 | def_value = 1; | |
1276 | def_answer = 'Y'; | |
1277 | not_def_answer = 'N'; | |
1278 | y_string = "y"; | |
1279 | n_string = "n"; | |
1280 | } | |
1281 | else if (defchar == 'y') | |
cbdeadca JJ |
1282 | { |
1283 | def_value = 1; | |
1284 | def_answer = 'Y'; | |
1285 | not_def_answer = 'N'; | |
1286 | y_string = "[y]"; | |
1287 | n_string = "n"; | |
1288 | } | |
1289 | else | |
1290 | { | |
1291 | def_value = 0; | |
1292 | def_answer = 'N'; | |
1293 | not_def_answer = 'Y'; | |
1294 | y_string = "y"; | |
1295 | n_string = "[n]"; | |
1296 | } | |
1297 | ||
981c7f5a | 1298 | /* Automatically answer the default value if the user did not want |
a502cf95 | 1299 | prompts or the command was issued with the server prefix. */ |
e360902b | 1300 | if (!confirm || server_command) |
981c7f5a DJ |
1301 | return def_value; |
1302 | ||
1303 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 1304 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
1305 | way, important error messages don't get lost when talking to GDB |
1306 | over a pipe. */ | |
c63a1f86 | 1307 | if (! input_from_terminal_p ()) |
981c7f5a DJ |
1308 | { |
1309 | wrap_here (""); | |
1310 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1311 | ||
3e43a32a MS |
1312 | printf_filtered (_("(%s or %s) [answered %c; " |
1313 | "input not from terminal]\n"), | |
981c7f5a DJ |
1314 | y_string, n_string, def_answer); |
1315 | gdb_flush (gdb_stdout); | |
1316 | ||
1317 | return def_value; | |
1318 | } | |
1319 | ||
9a4105ab | 1320 | if (deprecated_query_hook) |
cbdeadca | 1321 | { |
9a4105ab | 1322 | return deprecated_query_hook (ctlstr, args); |
cbdeadca JJ |
1323 | } |
1324 | ||
981c7f5a DJ |
1325 | /* Format the question outside of the loop, to avoid reusing args. */ |
1326 | question = xstrvprintf (ctlstr, args); | |
1327 | ||
260c0b2a DE |
1328 | /* Used for calculating time spend waiting for user. */ |
1329 | gettimeofday (&prompt_started, NULL); | |
1330 | ||
cbdeadca JJ |
1331 | while (1) |
1332 | { | |
581e13c1 | 1333 | wrap_here (""); /* Flush any buffered output. */ |
cbdeadca JJ |
1334 | gdb_flush (gdb_stdout); |
1335 | ||
1336 | if (annotation_level > 1) | |
a3f17187 | 1337 | printf_filtered (("\n\032\032pre-query\n")); |
cbdeadca | 1338 | |
981c7f5a | 1339 | fputs_filtered (question, gdb_stdout); |
a3f17187 | 1340 | printf_filtered (_("(%s or %s) "), y_string, n_string); |
cbdeadca JJ |
1341 | |
1342 | if (annotation_level > 1) | |
a3f17187 | 1343 | printf_filtered (("\n\032\032query\n")); |
cbdeadca JJ |
1344 | |
1345 | wrap_here (""); | |
1346 | gdb_flush (gdb_stdout); | |
1347 | ||
1348 | answer = fgetc (stdin); | |
8626589c JB |
1349 | |
1350 | /* We expect fgetc to block until a character is read. But | |
1351 | this may not be the case if the terminal was opened with | |
1352 | the NONBLOCK flag. In that case, if there is nothing to | |
1353 | read on stdin, fgetc returns EOF, but also sets the error | |
1354 | condition flag on stdin and errno to EAGAIN. With a true | |
1355 | EOF, stdin's error condition flag is not set. | |
1356 | ||
1357 | A situation where this behavior was observed is a pseudo | |
1358 | terminal on AIX. */ | |
1359 | while (answer == EOF && ferror (stdin) && errno == EAGAIN) | |
1360 | { | |
1361 | /* Not a real EOF. Wait a little while and try again until | |
1362 | we read something. */ | |
1363 | clearerr (stdin); | |
1364 | gdb_usleep (10000); | |
1365 | answer = fgetc (stdin); | |
1366 | } | |
1367 | ||
cbdeadca JJ |
1368 | clearerr (stdin); /* in case of C-d */ |
1369 | if (answer == EOF) /* C-d */ | |
1370 | { | |
fa3fd85b | 1371 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
1372 | retval = def_value; |
1373 | break; | |
1374 | } | |
581e13c1 | 1375 | /* Eat rest of input line, to EOF or newline. */ |
cbdeadca JJ |
1376 | if (answer != '\n') |
1377 | do | |
1378 | { | |
1379 | ans2 = fgetc (stdin); | |
1380 | clearerr (stdin); | |
1381 | } | |
1382 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); | |
1383 | ||
1384 | if (answer >= 'a') | |
1385 | answer -= 040; | |
1386 | /* Check answer. For the non-default, the user must specify | |
1387 | the non-default explicitly. */ | |
1388 | if (answer == not_def_answer) | |
1389 | { | |
1390 | retval = !def_value; | |
1391 | break; | |
1392 | } | |
981c7f5a DJ |
1393 | /* Otherwise, if a default was specified, the user may either |
1394 | specify the required input or have it default by entering | |
1395 | nothing. */ | |
1396 | if (answer == def_answer | |
1397 | || (defchar != '\0' && | |
1398 | (answer == '\n' || answer == '\r' || answer == EOF))) | |
cbdeadca JJ |
1399 | { |
1400 | retval = def_value; | |
1401 | break; | |
1402 | } | |
1403 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 1404 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
1405 | y_string, n_string); |
1406 | } | |
1407 | ||
260c0b2a DE |
1408 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
1409 | gettimeofday (&prompt_ended, NULL); | |
1410 | timeval_sub (&prompt_delta, &prompt_ended, &prompt_started); | |
1411 | timeval_add (&prompt_for_continue_wait_time, | |
1412 | &prompt_for_continue_wait_time, &prompt_delta); | |
1413 | ||
981c7f5a | 1414 | xfree (question); |
cbdeadca | 1415 | if (annotation_level > 1) |
a3f17187 | 1416 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
1417 | return retval; |
1418 | } | |
1419 | \f | |
1420 | ||
1421 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1422 | answer is yes, or 0 if answer is defaulted. | |
1423 | Takes three args which are given to printf to print the question. | |
1424 | The first, a control string, should end in "? ". | |
1425 | It should not say how to answer, because we do that. */ | |
1426 | ||
1427 | int | |
1428 | nquery (const char *ctlstr, ...) | |
1429 | { | |
1430 | va_list args; | |
899500d6 | 1431 | int ret; |
cbdeadca JJ |
1432 | |
1433 | va_start (args, ctlstr); | |
899500d6 | 1434 | ret = defaulted_query (ctlstr, 'n', args); |
cbdeadca | 1435 | va_end (args); |
899500d6 | 1436 | return ret; |
cbdeadca JJ |
1437 | } |
1438 | ||
1439 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1440 | answer is yes, or 1 if answer is defaulted. | |
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 | yquery (const char *ctlstr, ...) | |
1447 | { | |
1448 | va_list args; | |
899500d6 | 1449 | int ret; |
cbdeadca JJ |
1450 | |
1451 | va_start (args, ctlstr); | |
899500d6 | 1452 | ret = defaulted_query (ctlstr, 'y', args); |
cbdeadca | 1453 | va_end (args); |
899500d6 | 1454 | return ret; |
cbdeadca JJ |
1455 | } |
1456 | ||
981c7f5a DJ |
1457 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
1458 | Takes three args which are given to printf to print the question. | |
1459 | The first, a control string, should end in "? ". | |
1460 | It should not say how to answer, because we do that. */ | |
1461 | ||
1462 | int | |
1463 | query (const char *ctlstr, ...) | |
1464 | { | |
1465 | va_list args; | |
899500d6 | 1466 | int ret; |
981c7f5a DJ |
1467 | |
1468 | va_start (args, ctlstr); | |
899500d6 | 1469 | ret = defaulted_query (ctlstr, '\0', args); |
981c7f5a | 1470 | va_end (args); |
899500d6 | 1471 | return ret; |
981c7f5a DJ |
1472 | } |
1473 | ||
6c7a06a3 TT |
1474 | /* A helper for parse_escape that converts a host character to a |
1475 | target character. C is the host character. If conversion is | |
1476 | possible, then the target character is stored in *TARGET_C and the | |
1477 | function returns 1. Otherwise, the function returns 0. */ | |
1478 | ||
1479 | static int | |
f870a310 | 1480 | host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c) |
234b45d4 | 1481 | { |
6c7a06a3 TT |
1482 | struct obstack host_data; |
1483 | char the_char = c; | |
1484 | struct cleanup *cleanups; | |
1485 | int result = 0; | |
234b45d4 | 1486 | |
6c7a06a3 TT |
1487 | obstack_init (&host_data); |
1488 | cleanups = make_cleanup_obstack_free (&host_data); | |
234b45d4 | 1489 | |
f870a310 | 1490 | convert_between_encodings (target_charset (gdbarch), host_charset (), |
6c7a06a3 TT |
1491 | &the_char, 1, 1, &host_data, translit_none); |
1492 | ||
1493 | if (obstack_object_size (&host_data) == 1) | |
1494 | { | |
1495 | result = 1; | |
1496 | *target_c = *(char *) obstack_base (&host_data); | |
1497 | } | |
1498 | ||
1499 | do_cleanups (cleanups); | |
1500 | return result; | |
234b45d4 KB |
1501 | } |
1502 | ||
c906108c SS |
1503 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1504 | containing a pointer to the string to parse. That pointer | |
1505 | should point to the character after the \. That pointer | |
1506 | is updated past the characters we use. The value of the | |
1507 | escape sequence is returned. | |
1508 | ||
1509 | A negative value means the sequence \ newline was seen, | |
1510 | which is supposed to be equivalent to nothing at all. | |
1511 | ||
1512 | If \ is followed by a null character, we return a negative | |
1513 | value and leave the string pointer pointing at the null character. | |
1514 | ||
1515 | If \ is followed by 000, we return 0 and leave the string pointer | |
1516 | after the zeros. A value of 0 does not mean end of string. */ | |
1517 | ||
1518 | int | |
f870a310 | 1519 | parse_escape (struct gdbarch *gdbarch, char **string_ptr) |
c906108c | 1520 | { |
581e13c1 | 1521 | int target_char = -2; /* Initialize to avoid GCC warnings. */ |
52f0bd74 | 1522 | int c = *(*string_ptr)++; |
e0627e85 | 1523 | |
6c7a06a3 TT |
1524 | switch (c) |
1525 | { | |
8731e58e AC |
1526 | case '\n': |
1527 | return -2; | |
1528 | case 0: | |
1529 | (*string_ptr)--; | |
1530 | return 0; | |
8731e58e AC |
1531 | |
1532 | case '0': | |
1533 | case '1': | |
1534 | case '2': | |
1535 | case '3': | |
1536 | case '4': | |
1537 | case '5': | |
1538 | case '6': | |
1539 | case '7': | |
1540 | { | |
6c7a06a3 | 1541 | int i = host_hex_value (c); |
aa1ee363 | 1542 | int count = 0; |
8731e58e AC |
1543 | while (++count < 3) |
1544 | { | |
5cb316ef | 1545 | c = (**string_ptr); |
6c7a06a3 | 1546 | if (isdigit (c) && c != '8' && c != '9') |
8731e58e | 1547 | { |
5cb316ef | 1548 | (*string_ptr)++; |
8731e58e | 1549 | i *= 8; |
6c7a06a3 | 1550 | i += host_hex_value (c); |
8731e58e AC |
1551 | } |
1552 | else | |
1553 | { | |
8731e58e AC |
1554 | break; |
1555 | } | |
1556 | } | |
1557 | return i; | |
1558 | } | |
6c7a06a3 TT |
1559 | |
1560 | case 'a': | |
1561 | c = '\a'; | |
1562 | break; | |
1563 | case 'b': | |
1564 | c = '\b'; | |
1565 | break; | |
1566 | case 'f': | |
1567 | c = '\f'; | |
1568 | break; | |
1569 | case 'n': | |
1570 | c = '\n'; | |
1571 | break; | |
1572 | case 'r': | |
1573 | c = '\r'; | |
1574 | break; | |
1575 | case 't': | |
1576 | c = '\t'; | |
1577 | break; | |
1578 | case 'v': | |
1579 | c = '\v'; | |
1580 | break; | |
1581 | ||
1582 | default: | |
1583 | break; | |
1584 | } | |
1585 | ||
f870a310 | 1586 | if (!host_char_to_target (gdbarch, c, &target_char)) |
3351ea09 JB |
1587 | error (_("The escape sequence `\\%c' is equivalent to plain `%c'," |
1588 | " which has no equivalent\nin the `%s' character set."), | |
905b671b | 1589 | c, c, target_charset (gdbarch)); |
6c7a06a3 | 1590 | return target_char; |
c906108c SS |
1591 | } |
1592 | \f | |
1593 | /* Print the character C on STREAM as part of the contents of a literal | |
1594 | string whose delimiter is QUOTER. Note that this routine should only | |
1595 | be call for printing things which are independent of the language | |
581e13c1 | 1596 | of the program being debugged. */ |
c906108c | 1597 | |
43e526b9 | 1598 | static void |
74f832da | 1599 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
bee0189a DJ |
1600 | void (*do_fprintf) (struct ui_file *, const char *, ...) |
1601 | ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter) | |
c906108c | 1602 | { |
c906108c SS |
1603 | c &= 0xFF; /* Avoid sign bit follies */ |
1604 | ||
c5aa993b JM |
1605 | if (c < 0x20 || /* Low control chars */ |
1606 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1607 | (sevenbit_strings && c >= 0x80)) | |
1608 | { /* high order bit set */ | |
1609 | switch (c) | |
1610 | { | |
1611 | case '\n': | |
43e526b9 | 1612 | do_fputs ("\\n", stream); |
c5aa993b JM |
1613 | break; |
1614 | case '\b': | |
43e526b9 | 1615 | do_fputs ("\\b", stream); |
c5aa993b JM |
1616 | break; |
1617 | case '\t': | |
43e526b9 | 1618 | do_fputs ("\\t", stream); |
c5aa993b JM |
1619 | break; |
1620 | case '\f': | |
43e526b9 | 1621 | do_fputs ("\\f", stream); |
c5aa993b JM |
1622 | break; |
1623 | case '\r': | |
43e526b9 | 1624 | do_fputs ("\\r", stream); |
c5aa993b JM |
1625 | break; |
1626 | case '\033': | |
43e526b9 | 1627 | do_fputs ("\\e", stream); |
c5aa993b JM |
1628 | break; |
1629 | case '\007': | |
43e526b9 | 1630 | do_fputs ("\\a", stream); |
c5aa993b JM |
1631 | break; |
1632 | default: | |
43e526b9 | 1633 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1634 | break; |
1635 | } | |
1636 | } | |
1637 | else | |
1638 | { | |
1639 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1640 | do_fputs ("\\", stream); |
1641 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1642 | } |
c906108c | 1643 | } |
43e526b9 JM |
1644 | |
1645 | /* Print the character C on STREAM as part of the contents of a | |
1646 | literal string whose delimiter is QUOTER. Note that these routines | |
1647 | should only be call for printing things which are independent of | |
581e13c1 | 1648 | the language of the program being debugged. */ |
43e526b9 JM |
1649 | |
1650 | void | |
fba45db2 | 1651 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1652 | { |
1653 | while (*str) | |
1654 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1655 | } | |
1656 | ||
1657 | void | |
fba45db2 | 1658 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1659 | { |
1660 | while (*str) | |
1661 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1662 | } | |
1663 | ||
0876f84a DJ |
1664 | void |
1665 | fputstrn_filtered (const char *str, int n, int quoter, | |
1666 | struct ui_file *stream) | |
1667 | { | |
1668 | int i; | |
e0627e85 | 1669 | |
0876f84a DJ |
1670 | for (i = 0; i < n; i++) |
1671 | printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter); | |
1672 | } | |
1673 | ||
43e526b9 | 1674 | void |
8731e58e AC |
1675 | fputstrn_unfiltered (const char *str, int n, int quoter, |
1676 | struct ui_file *stream) | |
43e526b9 JM |
1677 | { |
1678 | int i; | |
5d502164 | 1679 | |
43e526b9 JM |
1680 | for (i = 0; i < n; i++) |
1681 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1682 | } | |
c906108c | 1683 | \f |
c5aa993b | 1684 | |
c906108c SS |
1685 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1686 | static unsigned int lines_per_page; | |
920d2a44 AC |
1687 | static void |
1688 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1689 | struct cmd_list_element *c, const char *value) | |
1690 | { | |
3e43a32a MS |
1691 | fprintf_filtered (file, |
1692 | _("Number of lines gdb thinks are in a page is %s.\n"), | |
920d2a44 AC |
1693 | value); |
1694 | } | |
eb0d3137 | 1695 | |
cbfbd72a | 1696 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1697 | static unsigned int chars_per_line; |
920d2a44 AC |
1698 | static void |
1699 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1700 | struct cmd_list_element *c, const char *value) | |
1701 | { | |
3e43a32a MS |
1702 | fprintf_filtered (file, |
1703 | _("Number of characters gdb thinks " | |
1704 | "are in a line is %s.\n"), | |
920d2a44 AC |
1705 | value); |
1706 | } | |
eb0d3137 | 1707 | |
c906108c SS |
1708 | /* Current count of lines printed on this page, chars on this line. */ |
1709 | static unsigned int lines_printed, chars_printed; | |
1710 | ||
1711 | /* Buffer and start column of buffered text, for doing smarter word- | |
1712 | wrapping. When someone calls wrap_here(), we start buffering output | |
1713 | that comes through fputs_filtered(). If we see a newline, we just | |
1714 | spit it out and forget about the wrap_here(). If we see another | |
1715 | wrap_here(), we spit it out and remember the newer one. If we see | |
1716 | the end of the line, we spit out a newline, the indent, and then | |
1717 | the buffered output. */ | |
1718 | ||
1719 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1720 | are waiting to be output (they have already been counted in chars_printed). | |
1721 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1722 | static char *wrap_buffer; | |
1723 | ||
1724 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1725 | static char *wrap_pointer; | |
1726 | ||
1727 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1728 | is non-zero. */ | |
1729 | static char *wrap_indent; | |
1730 | ||
1731 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1732 | is not in effect. */ | |
1733 | static int wrap_column; | |
c906108c | 1734 | \f |
c5aa993b | 1735 | |
eb0d3137 MK |
1736 | /* Inialize the number of lines per page and chars per line. */ |
1737 | ||
c906108c | 1738 | void |
fba45db2 | 1739 | init_page_info (void) |
c906108c | 1740 | { |
5da1313b JK |
1741 | if (batch_flag) |
1742 | { | |
1743 | lines_per_page = UINT_MAX; | |
1744 | chars_per_line = UINT_MAX; | |
1745 | } | |
1746 | else | |
c906108c | 1747 | #if defined(TUI) |
5ecb1806 | 1748 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1749 | #endif |
1750 | { | |
eb0d3137 | 1751 | int rows, cols; |
c906108c | 1752 | |
ec145965 EZ |
1753 | #if defined(__GO32__) |
1754 | rows = ScreenRows (); | |
1755 | cols = ScreenCols (); | |
1756 | lines_per_page = rows; | |
1757 | chars_per_line = cols; | |
1758 | #else | |
eb0d3137 MK |
1759 | /* Make sure Readline has initialized its terminal settings. */ |
1760 | rl_reset_terminal (NULL); | |
c906108c | 1761 | |
eb0d3137 MK |
1762 | /* Get the screen size from Readline. */ |
1763 | rl_get_screen_size (&rows, &cols); | |
1764 | lines_per_page = rows; | |
1765 | chars_per_line = cols; | |
c906108c | 1766 | |
eb0d3137 MK |
1767 | /* Readline should have fetched the termcap entry for us. */ |
1768 | if (tgetnum ("li") < 0 || getenv ("EMACS")) | |
1769 | { | |
1770 | /* The number of lines per page is not mentioned in the | |
1771 | terminal description. This probably means that paging is | |
1772 | not useful (e.g. emacs shell window), so disable paging. */ | |
1773 | lines_per_page = UINT_MAX; | |
1774 | } | |
c906108c | 1775 | |
c906108c | 1776 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1777 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1778 | lines_per_page = UINT_MAX; |
eb0d3137 | 1779 | #endif |
ec145965 | 1780 | } |
eb0d3137 MK |
1781 | |
1782 | set_screen_size (); | |
c5aa993b | 1783 | set_width (); |
c906108c SS |
1784 | } |
1785 | ||
5da1313b JK |
1786 | /* Helper for make_cleanup_restore_page_info. */ |
1787 | ||
1788 | static void | |
1789 | do_restore_page_info_cleanup (void *arg) | |
1790 | { | |
1791 | set_screen_size (); | |
1792 | set_width (); | |
1793 | } | |
1794 | ||
1795 | /* Provide cleanup for restoring the terminal size. */ | |
1796 | ||
1797 | struct cleanup * | |
1798 | make_cleanup_restore_page_info (void) | |
1799 | { | |
1800 | struct cleanup *back_to; | |
1801 | ||
1802 | back_to = make_cleanup (do_restore_page_info_cleanup, NULL); | |
1803 | make_cleanup_restore_uinteger (&lines_per_page); | |
1804 | make_cleanup_restore_uinteger (&chars_per_line); | |
1805 | ||
1806 | return back_to; | |
1807 | } | |
1808 | ||
1809 | /* Temporarily set BATCH_FLAG and the associated unlimited terminal size. | |
1810 | Provide cleanup for restoring the original state. */ | |
1811 | ||
1812 | struct cleanup * | |
1813 | set_batch_flag_and_make_cleanup_restore_page_info (void) | |
1814 | { | |
1815 | struct cleanup *back_to = make_cleanup_restore_page_info (); | |
1816 | ||
1817 | make_cleanup_restore_integer (&batch_flag); | |
1818 | batch_flag = 1; | |
1819 | init_page_info (); | |
1820 | ||
1821 | return back_to; | |
1822 | } | |
1823 | ||
eb0d3137 MK |
1824 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1825 | ||
1826 | static void | |
1827 | set_screen_size (void) | |
1828 | { | |
1829 | int rows = lines_per_page; | |
1830 | int cols = chars_per_line; | |
1831 | ||
1832 | if (rows <= 0) | |
1833 | rows = INT_MAX; | |
1834 | ||
1835 | if (cols <= 0) | |
0caa462c | 1836 | cols = INT_MAX; |
eb0d3137 MK |
1837 | |
1838 | /* Update Readline's idea of the terminal size. */ | |
1839 | rl_set_screen_size (rows, cols); | |
1840 | } | |
1841 | ||
1842 | /* Reinitialize WRAP_BUFFER according to the current value of | |
1843 | CHARS_PER_LINE. */ | |
1844 | ||
c906108c | 1845 | static void |
fba45db2 | 1846 | set_width (void) |
c906108c SS |
1847 | { |
1848 | if (chars_per_line == 0) | |
c5aa993b | 1849 | init_page_info (); |
c906108c SS |
1850 | |
1851 | if (!wrap_buffer) | |
1852 | { | |
1853 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1854 | wrap_buffer[0] = '\0'; | |
1855 | } | |
1856 | else | |
1857 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 1858 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
1859 | } |
1860 | ||
c5aa993b | 1861 | static void |
fba45db2 | 1862 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1863 | { |
eb0d3137 | 1864 | set_screen_size (); |
c906108c SS |
1865 | set_width (); |
1866 | } | |
1867 | ||
eb0d3137 MK |
1868 | static void |
1869 | set_height_command (char *args, int from_tty, struct cmd_list_element *c) | |
1870 | { | |
1871 | set_screen_size (); | |
1872 | } | |
1873 | ||
c906108c SS |
1874 | /* Wait, so the user can read what's on the screen. Prompt the user |
1875 | to continue by pressing RETURN. */ | |
1876 | ||
1877 | static void | |
fba45db2 | 1878 | prompt_for_continue (void) |
c906108c SS |
1879 | { |
1880 | char *ignore; | |
1881 | char cont_prompt[120]; | |
260c0b2a DE |
1882 | /* Used to add duration we waited for user to respond to |
1883 | prompt_for_continue_wait_time. */ | |
1884 | struct timeval prompt_started, prompt_ended, prompt_delta; | |
1885 | ||
1886 | gettimeofday (&prompt_started, NULL); | |
c906108c SS |
1887 | |
1888 | if (annotation_level > 1) | |
a3f17187 | 1889 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
1890 | |
1891 | strcpy (cont_prompt, | |
1892 | "---Type <return> to continue, or q <return> to quit---"); | |
1893 | if (annotation_level > 1) | |
1894 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1895 | ||
1896 | /* We must do this *before* we call gdb_readline, else it will eventually | |
1897 | call us -- thinking that we're trying to print beyond the end of the | |
1898 | screen. */ | |
1899 | reinitialize_more_filter (); | |
1900 | ||
1901 | immediate_quit++; | |
522002f9 | 1902 | QUIT; |
c906108c SS |
1903 | /* On a real operating system, the user can quit with SIGINT. |
1904 | But not on GO32. | |
1905 | ||
1906 | 'q' is provided on all systems so users don't have to change habits | |
1907 | from system to system, and because telling them what to do in | |
1908 | the prompt is more user-friendly than expecting them to think of | |
1909 | SIGINT. */ | |
1910 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
1911 | whereas control-C to gdb_readline will cause the user to get dumped | |
1912 | out to DOS. */ | |
b4f5539f | 1913 | ignore = gdb_readline_wrapper (cont_prompt); |
c906108c | 1914 | |
260c0b2a DE |
1915 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
1916 | gettimeofday (&prompt_ended, NULL); | |
1917 | timeval_sub (&prompt_delta, &prompt_ended, &prompt_started); | |
1918 | timeval_add (&prompt_for_continue_wait_time, | |
1919 | &prompt_for_continue_wait_time, &prompt_delta); | |
1920 | ||
c906108c | 1921 | if (annotation_level > 1) |
a3f17187 | 1922 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c SS |
1923 | |
1924 | if (ignore) | |
1925 | { | |
1926 | char *p = ignore; | |
5d502164 | 1927 | |
c906108c SS |
1928 | while (*p == ' ' || *p == '\t') |
1929 | ++p; | |
1930 | if (p[0] == 'q') | |
522002f9 | 1931 | quit (); |
b8c9b27d | 1932 | xfree (ignore); |
c906108c SS |
1933 | } |
1934 | immediate_quit--; | |
1935 | ||
1936 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1937 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1938 | reinitialize_more_filter (); | |
1939 | ||
581e13c1 | 1940 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ |
c906108c SS |
1941 | } |
1942 | ||
1943 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
1944 | ||
1945 | void | |
fba45db2 | 1946 | reinitialize_more_filter (void) |
c906108c SS |
1947 | { |
1948 | lines_printed = 0; | |
1949 | chars_printed = 0; | |
1950 | } | |
1951 | ||
1952 | /* Indicate that if the next sequence of characters overflows the line, | |
581e13c1 | 1953 | a newline should be inserted here rather than when it hits the end. |
c906108c SS |
1954 | If INDENT is non-null, it is a string to be printed to indent the |
1955 | wrapped part on the next line. INDENT must remain accessible until | |
1956 | the next call to wrap_here() or until a newline is printed through | |
1957 | fputs_filtered(). | |
1958 | ||
1959 | If the line is already overfull, we immediately print a newline and | |
1960 | the indentation, and disable further wrapping. | |
1961 | ||
1962 | If we don't know the width of lines, but we know the page height, | |
1963 | we must not wrap words, but should still keep track of newlines | |
1964 | that were explicitly printed. | |
1965 | ||
1966 | INDENT should not contain tabs, as that will mess up the char count | |
1967 | on the next line. FIXME. | |
1968 | ||
1969 | This routine is guaranteed to force out any output which has been | |
1970 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1971 | used to force out output from the wrap_buffer. */ | |
1972 | ||
1973 | void | |
fba45db2 | 1974 | wrap_here (char *indent) |
c906108c | 1975 | { |
581e13c1 | 1976 | /* This should have been allocated, but be paranoid anyway. */ |
c906108c | 1977 | if (!wrap_buffer) |
3e43a32a MS |
1978 | internal_error (__FILE__, __LINE__, |
1979 | _("failed internal consistency check")); | |
c906108c SS |
1980 | |
1981 | if (wrap_buffer[0]) | |
1982 | { | |
1983 | *wrap_pointer = '\0'; | |
1984 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1985 | } | |
1986 | wrap_pointer = wrap_buffer; | |
1987 | wrap_buffer[0] = '\0'; | |
3e43a32a | 1988 | if (chars_per_line == UINT_MAX) /* No line overflow checking. */ |
c906108c SS |
1989 | { |
1990 | wrap_column = 0; | |
1991 | } | |
1992 | else if (chars_printed >= chars_per_line) | |
1993 | { | |
1994 | puts_filtered ("\n"); | |
1995 | if (indent != NULL) | |
1996 | puts_filtered (indent); | |
1997 | wrap_column = 0; | |
1998 | } | |
1999 | else | |
2000 | { | |
2001 | wrap_column = chars_printed; | |
2002 | if (indent == NULL) | |
2003 | wrap_indent = ""; | |
2004 | else | |
2005 | wrap_indent = indent; | |
2006 | } | |
2007 | } | |
2008 | ||
4a351cef | 2009 | /* Print input string to gdb_stdout, filtered, with wrap, |
581e13c1 | 2010 | arranging strings in columns of n chars. String can be |
4a351cef AF |
2011 | right or left justified in the column. Never prints |
2012 | trailing spaces. String should never be longer than | |
2013 | width. FIXME: this could be useful for the EXAMINE | |
581e13c1 | 2014 | command, which currently doesn't tabulate very well. */ |
4a351cef AF |
2015 | |
2016 | void | |
2017 | puts_filtered_tabular (char *string, int width, int right) | |
2018 | { | |
2019 | int spaces = 0; | |
2020 | int stringlen; | |
2021 | char *spacebuf; | |
2022 | ||
2023 | gdb_assert (chars_per_line > 0); | |
2024 | if (chars_per_line == UINT_MAX) | |
2025 | { | |
2026 | fputs_filtered (string, gdb_stdout); | |
2027 | fputs_filtered ("\n", gdb_stdout); | |
2028 | return; | |
2029 | } | |
2030 | ||
2031 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
2032 | fputs_filtered ("\n", gdb_stdout); | |
2033 | ||
2034 | if (width >= chars_per_line) | |
2035 | width = chars_per_line - 1; | |
2036 | ||
2037 | stringlen = strlen (string); | |
2038 | ||
2039 | if (chars_printed > 0) | |
2040 | spaces = width - (chars_printed - 1) % width - 1; | |
2041 | if (right) | |
2042 | spaces += width - stringlen; | |
2043 | ||
2044 | spacebuf = alloca (spaces + 1); | |
2045 | spacebuf[spaces] = '\0'; | |
2046 | while (spaces--) | |
2047 | spacebuf[spaces] = ' '; | |
2048 | ||
2049 | fputs_filtered (spacebuf, gdb_stdout); | |
2050 | fputs_filtered (string, gdb_stdout); | |
2051 | } | |
2052 | ||
2053 | ||
c906108c | 2054 | /* Ensure that whatever gets printed next, using the filtered output |
581e13c1 | 2055 | commands, starts at the beginning of the line. I.e. if there is |
c906108c | 2056 | any pending output for the current line, flush it and start a new |
581e13c1 | 2057 | line. Otherwise do nothing. */ |
c906108c SS |
2058 | |
2059 | void | |
fba45db2 | 2060 | begin_line (void) |
c906108c SS |
2061 | { |
2062 | if (chars_printed > 0) | |
2063 | { | |
2064 | puts_filtered ("\n"); | |
2065 | } | |
2066 | } | |
2067 | ||
ac9a91a7 | 2068 | |
c906108c SS |
2069 | /* Like fputs but if FILTER is true, pause after every screenful. |
2070 | ||
2071 | Regardless of FILTER can wrap at points other than the final | |
2072 | character of a line. | |
2073 | ||
2074 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
2075 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
2076 | anything. | |
2077 | ||
2078 | Note that a longjmp to top level may occur in this routine (only if | |
2079 | FILTER is true) (since prompt_for_continue may do so) so this | |
2080 | routine should not be called when cleanups are not in place. */ | |
2081 | ||
2082 | static void | |
fba45db2 KB |
2083 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
2084 | int filter) | |
c906108c SS |
2085 | { |
2086 | const char *lineptr; | |
2087 | ||
2088 | if (linebuffer == 0) | |
2089 | return; | |
2090 | ||
2091 | /* Don't do any filtering if it is disabled. */ | |
390a8aca | 2092 | if (stream != gdb_stdout |
b2e7f004 JK |
2093 | || !pagination_enabled |
2094 | || batch_flag | |
390a8aca | 2095 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) |
58dadb1b | 2096 | || top_level_interpreter () == NULL |
390a8aca | 2097 | || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) |
c906108c SS |
2098 | { |
2099 | fputs_unfiltered (linebuffer, stream); | |
2100 | return; | |
2101 | } | |
2102 | ||
2103 | /* Go through and output each character. Show line extension | |
2104 | when this is necessary; prompt user for new page when this is | |
2105 | necessary. */ | |
c5aa993b | 2106 | |
c906108c SS |
2107 | lineptr = linebuffer; |
2108 | while (*lineptr) | |
2109 | { | |
2110 | /* Possible new page. */ | |
8731e58e | 2111 | if (filter && (lines_printed >= lines_per_page - 1)) |
c906108c SS |
2112 | prompt_for_continue (); |
2113 | ||
2114 | while (*lineptr && *lineptr != '\n') | |
2115 | { | |
2116 | /* Print a single line. */ | |
2117 | if (*lineptr == '\t') | |
2118 | { | |
2119 | if (wrap_column) | |
2120 | *wrap_pointer++ = '\t'; | |
2121 | else | |
2122 | fputc_unfiltered ('\t', stream); | |
2123 | /* Shifting right by 3 produces the number of tab stops | |
2124 | we have already passed, and then adding one and | |
c5aa993b | 2125 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
2126 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
2127 | lineptr++; | |
2128 | } | |
2129 | else | |
2130 | { | |
2131 | if (wrap_column) | |
2132 | *wrap_pointer++ = *lineptr; | |
2133 | else | |
c5aa993b | 2134 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
2135 | chars_printed++; |
2136 | lineptr++; | |
2137 | } | |
c5aa993b | 2138 | |
c906108c SS |
2139 | if (chars_printed >= chars_per_line) |
2140 | { | |
2141 | unsigned int save_chars = chars_printed; | |
2142 | ||
2143 | chars_printed = 0; | |
2144 | lines_printed++; | |
2145 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
2146 | if chars_per_line is right, we probably just overflowed |
2147 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
2148 | if (wrap_column) |
2149 | fputc_unfiltered ('\n', stream); | |
2150 | ||
2151 | /* Possible new page. */ | |
2152 | if (lines_printed >= lines_per_page - 1) | |
2153 | prompt_for_continue (); | |
2154 | ||
581e13c1 | 2155 | /* Now output indentation and wrapped string. */ |
c906108c SS |
2156 | if (wrap_column) |
2157 | { | |
2158 | fputs_unfiltered (wrap_indent, stream); | |
581e13c1 MS |
2159 | *wrap_pointer = '\0'; /* Null-terminate saved stuff, */ |
2160 | fputs_unfiltered (wrap_buffer, stream); /* and eject it. */ | |
c906108c SS |
2161 | /* FIXME, this strlen is what prevents wrap_indent from |
2162 | containing tabs. However, if we recurse to print it | |
2163 | and count its chars, we risk trouble if wrap_indent is | |
581e13c1 | 2164 | longer than (the user settable) chars_per_line. |
c906108c SS |
2165 | Note also that this can set chars_printed > chars_per_line |
2166 | if we are printing a long string. */ | |
2167 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 2168 | + (save_chars - wrap_column); |
c906108c SS |
2169 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
2170 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
2171 | wrap_column = 0; /* And disable fancy wrap */ |
2172 | } | |
c906108c SS |
2173 | } |
2174 | } | |
2175 | ||
2176 | if (*lineptr == '\n') | |
2177 | { | |
2178 | chars_printed = 0; | |
3e43a32a MS |
2179 | wrap_here ((char *) 0); /* Spit out chars, cancel |
2180 | further wraps. */ | |
c906108c SS |
2181 | lines_printed++; |
2182 | fputc_unfiltered ('\n', stream); | |
2183 | lineptr++; | |
2184 | } | |
2185 | } | |
2186 | } | |
2187 | ||
2188 | void | |
fba45db2 | 2189 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
2190 | { |
2191 | fputs_maybe_filtered (linebuffer, stream, 1); | |
2192 | } | |
2193 | ||
2194 | int | |
fba45db2 | 2195 | putchar_unfiltered (int c) |
c906108c | 2196 | { |
11cf8741 | 2197 | char buf = c; |
e0627e85 | 2198 | |
d9fcf2fb | 2199 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
2200 | return c; |
2201 | } | |
2202 | ||
d1f4cff8 AC |
2203 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
2204 | May return nonlocally. */ | |
2205 | ||
2206 | int | |
2207 | putchar_filtered (int c) | |
2208 | { | |
2209 | return fputc_filtered (c, gdb_stdout); | |
2210 | } | |
2211 | ||
c906108c | 2212 | int |
fba45db2 | 2213 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 2214 | { |
11cf8741 | 2215 | char buf = c; |
e0627e85 | 2216 | |
d9fcf2fb | 2217 | ui_file_write (stream, &buf, 1); |
c906108c SS |
2218 | return c; |
2219 | } | |
2220 | ||
2221 | int | |
fba45db2 | 2222 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
2223 | { |
2224 | char buf[2]; | |
2225 | ||
2226 | buf[0] = c; | |
2227 | buf[1] = 0; | |
2228 | fputs_filtered (buf, stream); | |
2229 | return c; | |
2230 | } | |
2231 | ||
2232 | /* puts_debug is like fputs_unfiltered, except it prints special | |
2233 | characters in printable fashion. */ | |
2234 | ||
2235 | void | |
fba45db2 | 2236 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
2237 | { |
2238 | int ch; | |
2239 | ||
2240 | /* Print prefix and suffix after each line. */ | |
2241 | static int new_line = 1; | |
2242 | static int return_p = 0; | |
2243 | static char *prev_prefix = ""; | |
2244 | static char *prev_suffix = ""; | |
2245 | ||
2246 | if (*string == '\n') | |
2247 | return_p = 0; | |
2248 | ||
2249 | /* If the prefix is changing, print the previous suffix, a new line, | |
2250 | and the new prefix. */ | |
c5aa993b | 2251 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2252 | { |
9846de1b JM |
2253 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2254 | fputs_unfiltered ("\n", gdb_stdlog); | |
2255 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2256 | } |
2257 | ||
2258 | /* Print prefix if we printed a newline during the previous call. */ | |
2259 | if (new_line) | |
2260 | { | |
2261 | new_line = 0; | |
9846de1b | 2262 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2263 | } |
2264 | ||
2265 | prev_prefix = prefix; | |
2266 | prev_suffix = suffix; | |
2267 | ||
2268 | /* Output characters in a printable format. */ | |
2269 | while ((ch = *string++) != '\0') | |
2270 | { | |
2271 | switch (ch) | |
c5aa993b | 2272 | { |
c906108c SS |
2273 | default: |
2274 | if (isprint (ch)) | |
9846de1b | 2275 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2276 | |
2277 | else | |
9846de1b | 2278 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2279 | break; |
2280 | ||
c5aa993b JM |
2281 | case '\\': |
2282 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2283 | break; | |
2284 | case '\b': | |
2285 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2286 | break; | |
2287 | case '\f': | |
2288 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2289 | break; | |
2290 | case '\n': | |
2291 | new_line = 1; | |
2292 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2293 | break; | |
2294 | case '\r': | |
2295 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2296 | break; | |
2297 | case '\t': | |
2298 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2299 | break; | |
2300 | case '\v': | |
2301 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2302 | break; | |
2303 | } | |
c906108c SS |
2304 | |
2305 | return_p = ch == '\r'; | |
2306 | } | |
2307 | ||
2308 | /* Print suffix if we printed a newline. */ | |
2309 | if (new_line) | |
2310 | { | |
9846de1b JM |
2311 | fputs_unfiltered (suffix, gdb_stdlog); |
2312 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2313 | } |
2314 | } | |
2315 | ||
2316 | ||
2317 | /* Print a variable number of ARGS using format FORMAT. If this | |
2318 | information is going to put the amount written (since the last call | |
2319 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2320 | call prompt_for_continue to get the users permision to continue. | |
2321 | ||
2322 | Unlike fprintf, this function does not return a value. | |
2323 | ||
2324 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2325 | fprintf (takes a stream to write on), and printf (the usual). | |
2326 | ||
2327 | Note also that a longjmp to top level may occur in this routine | |
2328 | (since prompt_for_continue may do so) so this routine should not be | |
2329 | called when cleanups are not in place. */ | |
2330 | ||
2331 | static void | |
fba45db2 KB |
2332 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2333 | va_list args, int filter) | |
c906108c SS |
2334 | { |
2335 | char *linebuffer; | |
2336 | struct cleanup *old_cleanups; | |
2337 | ||
e623b504 | 2338 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2339 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2340 | fputs_maybe_filtered (linebuffer, stream, filter); |
2341 | do_cleanups (old_cleanups); | |
2342 | } | |
2343 | ||
2344 | ||
2345 | void | |
fba45db2 | 2346 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2347 | { |
2348 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2349 | } | |
2350 | ||
2351 | void | |
fba45db2 | 2352 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2353 | { |
2354 | char *linebuffer; | |
2355 | struct cleanup *old_cleanups; | |
2356 | ||
e623b504 | 2357 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2358 | old_cleanups = make_cleanup (xfree, linebuffer); |
75feb17d DJ |
2359 | if (debug_timestamp && stream == gdb_stdlog) |
2360 | { | |
2361 | struct timeval tm; | |
2362 | char *timestamp; | |
6e5abd65 | 2363 | int len, need_nl; |
75feb17d DJ |
2364 | |
2365 | gettimeofday (&tm, NULL); | |
6e5abd65 PA |
2366 | |
2367 | len = strlen (linebuffer); | |
2368 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); | |
2369 | ||
2370 | timestamp = xstrprintf ("%ld:%ld %s%s", | |
2371 | (long) tm.tv_sec, (long) tm.tv_usec, | |
2372 | linebuffer, | |
2373 | need_nl ? "\n": ""); | |
75feb17d DJ |
2374 | make_cleanup (xfree, timestamp); |
2375 | fputs_unfiltered (timestamp, stream); | |
2376 | } | |
6e5abd65 PA |
2377 | else |
2378 | fputs_unfiltered (linebuffer, stream); | |
c906108c SS |
2379 | do_cleanups (old_cleanups); |
2380 | } | |
2381 | ||
2382 | void | |
fba45db2 | 2383 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2384 | { |
2385 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2386 | } | |
2387 | ||
2388 | void | |
fba45db2 | 2389 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2390 | { |
2391 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2392 | } | |
2393 | ||
c906108c | 2394 | void |
8731e58e | 2395 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2396 | { |
2397 | va_list args; | |
e0627e85 | 2398 | |
c906108c | 2399 | va_start (args, format); |
c906108c SS |
2400 | vfprintf_filtered (stream, format, args); |
2401 | va_end (args); | |
2402 | } | |
2403 | ||
c906108c | 2404 | void |
8731e58e | 2405 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2406 | { |
2407 | va_list args; | |
e0627e85 | 2408 | |
c906108c | 2409 | va_start (args, format); |
c906108c SS |
2410 | vfprintf_unfiltered (stream, format, args); |
2411 | va_end (args); | |
2412 | } | |
2413 | ||
2414 | /* Like fprintf_filtered, but prints its result indented. | |
2415 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2416 | ||
c906108c | 2417 | void |
8731e58e AC |
2418 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2419 | ...) | |
c906108c SS |
2420 | { |
2421 | va_list args; | |
e0627e85 | 2422 | |
c906108c | 2423 | va_start (args, format); |
c906108c SS |
2424 | print_spaces_filtered (spaces, stream); |
2425 | ||
2426 | vfprintf_filtered (stream, format, args); | |
2427 | va_end (args); | |
2428 | } | |
2429 | ||
2430 | ||
c906108c | 2431 | void |
8731e58e | 2432 | printf_filtered (const char *format, ...) |
c906108c SS |
2433 | { |
2434 | va_list args; | |
e0627e85 | 2435 | |
c906108c | 2436 | va_start (args, format); |
c906108c SS |
2437 | vfprintf_filtered (gdb_stdout, format, args); |
2438 | va_end (args); | |
2439 | } | |
2440 | ||
2441 | ||
c906108c | 2442 | void |
8731e58e | 2443 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2444 | { |
2445 | va_list args; | |
e0627e85 | 2446 | |
c906108c | 2447 | va_start (args, format); |
c906108c SS |
2448 | vfprintf_unfiltered (gdb_stdout, format, args); |
2449 | va_end (args); | |
2450 | } | |
2451 | ||
2452 | /* Like printf_filtered, but prints it's result indented. | |
2453 | Called as printfi_filtered (spaces, format, ...); */ | |
2454 | ||
c906108c | 2455 | void |
8731e58e | 2456 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2457 | { |
2458 | va_list args; | |
e0627e85 | 2459 | |
c906108c | 2460 | va_start (args, format); |
c906108c SS |
2461 | print_spaces_filtered (spaces, gdb_stdout); |
2462 | vfprintf_filtered (gdb_stdout, format, args); | |
2463 | va_end (args); | |
2464 | } | |
2465 | ||
2466 | /* Easy -- but watch out! | |
2467 | ||
2468 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2469 | This one doesn't, and had better not! */ | |
2470 | ||
2471 | void | |
fba45db2 | 2472 | puts_filtered (const char *string) |
c906108c SS |
2473 | { |
2474 | fputs_filtered (string, gdb_stdout); | |
2475 | } | |
2476 | ||
2477 | void | |
fba45db2 | 2478 | puts_unfiltered (const char *string) |
c906108c SS |
2479 | { |
2480 | fputs_unfiltered (string, gdb_stdout); | |
2481 | } | |
2482 | ||
2483 | /* Return a pointer to N spaces and a null. The pointer is good | |
2484 | until the next call to here. */ | |
2485 | char * | |
fba45db2 | 2486 | n_spaces (int n) |
c906108c | 2487 | { |
392a587b JM |
2488 | char *t; |
2489 | static char *spaces = 0; | |
2490 | static int max_spaces = -1; | |
c906108c SS |
2491 | |
2492 | if (n > max_spaces) | |
2493 | { | |
2494 | if (spaces) | |
b8c9b27d | 2495 | xfree (spaces); |
c5aa993b JM |
2496 | spaces = (char *) xmalloc (n + 1); |
2497 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2498 | *--t = ' '; |
2499 | spaces[n] = '\0'; | |
2500 | max_spaces = n; | |
2501 | } | |
2502 | ||
2503 | return spaces + max_spaces - n; | |
2504 | } | |
2505 | ||
2506 | /* Print N spaces. */ | |
2507 | void | |
fba45db2 | 2508 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2509 | { |
2510 | fputs_filtered (n_spaces (n), stream); | |
2511 | } | |
2512 | \f | |
4a351cef | 2513 | /* C++/ObjC demangler stuff. */ |
c906108c | 2514 | |
389e51db AC |
2515 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2516 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2517 | If the name is not mangled, or the language for the name is unknown, or | |
581e13c1 | 2518 | demangling is off, the name is printed in its "raw" form. */ |
c906108c SS |
2519 | |
2520 | void | |
0d5cff50 | 2521 | fprintf_symbol_filtered (struct ui_file *stream, const char *name, |
8731e58e | 2522 | enum language lang, int arg_mode) |
c906108c SS |
2523 | { |
2524 | char *demangled; | |
2525 | ||
2526 | if (name != NULL) | |
2527 | { | |
2528 | /* If user wants to see raw output, no problem. */ | |
2529 | if (!demangle) | |
2530 | { | |
2531 | fputs_filtered (name, stream); | |
2532 | } | |
2533 | else | |
2534 | { | |
9a3d7dfd | 2535 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2536 | fputs_filtered (demangled ? demangled : name, stream); |
2537 | if (demangled != NULL) | |
2538 | { | |
b8c9b27d | 2539 | xfree (demangled); |
c906108c SS |
2540 | } |
2541 | } | |
2542 | } | |
2543 | } | |
2544 | ||
2545 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2546 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2547 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2548 | |
c906108c SS |
2549 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2550 | This "feature" is useful when searching for matching C++ function names | |
2551 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
581e13c1 | 2552 | function). */ |
c906108c SS |
2553 | |
2554 | int | |
fba45db2 | 2555 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2556 | { |
2557 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2558 | { | |
2559 | while (isspace (*string1)) | |
2560 | { | |
2561 | string1++; | |
2562 | } | |
2563 | while (isspace (*string2)) | |
2564 | { | |
2565 | string2++; | |
2566 | } | |
559a7a62 JK |
2567 | if (case_sensitivity == case_sensitive_on && *string1 != *string2) |
2568 | break; | |
2569 | if (case_sensitivity == case_sensitive_off | |
2570 | && (tolower ((unsigned char) *string1) | |
2571 | != tolower ((unsigned char) *string2))) | |
2572 | break; | |
c906108c SS |
2573 | if (*string1 != '\0') |
2574 | { | |
2575 | string1++; | |
2576 | string2++; | |
2577 | } | |
2578 | } | |
2579 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2580 | } | |
2de7ced7 | 2581 | |
0fe19209 DC |
2582 | /* This is like strcmp except that it ignores whitespace and treats |
2583 | '(' as the first non-NULL character in terms of ordering. Like | |
2584 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2585 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2586 | according to that ordering. | |
2587 | ||
2588 | If a list is sorted according to this function and if you want to | |
2589 | find names in the list that match some fixed NAME according to | |
2590 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2591 | where this function would put NAME. | |
2592 | ||
559a7a62 JK |
2593 | This function must be neutral to the CASE_SENSITIVITY setting as the user |
2594 | may choose it during later lookup. Therefore this function always sorts | |
2595 | primarily case-insensitively and secondarily case-sensitively. | |
2596 | ||
0fe19209 DC |
2597 | Here are some examples of why using strcmp to sort is a bad idea: |
2598 | ||
2599 | Whitespace example: | |
2600 | ||
2601 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2602 | we try to do a search for "foo<char*>", strcmp will locate this | |
2603 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2604 | will start looking at strings beginning with "goo", and will never | |
2605 | see the correct match of "foo<char *>". | |
2606 | ||
2607 | Parenthesis example: | |
2608 | ||
2609 | In practice, this is less like to be an issue, but I'll give it a | |
2610 | shot. Let's assume that '$' is a legitimate character to occur in | |
2611 | symbols. (Which may well even be the case on some systems.) Then | |
2612 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2613 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2614 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2615 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2616 | "foo") is false, so it won't proceed to the actual match of | |
2617 | "foo(int)" with "foo". */ | |
2618 | ||
2619 | int | |
2620 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2621 | { | |
559a7a62 JK |
2622 | const char *saved_string1 = string1, *saved_string2 = string2; |
2623 | enum case_sensitivity case_pass = case_sensitive_off; | |
2624 | ||
2625 | for (;;) | |
0fe19209 | 2626 | { |
b11b1f88 JK |
2627 | /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'. |
2628 | Provide stub characters if we are already at the end of one of the | |
2629 | strings. */ | |
2630 | char c1 = 'X', c2 = 'X'; | |
2631 | ||
2632 | while (*string1 != '\0' && *string2 != '\0') | |
0fe19209 | 2633 | { |
b11b1f88 JK |
2634 | while (isspace (*string1)) |
2635 | string1++; | |
2636 | while (isspace (*string2)) | |
2637 | string2++; | |
2638 | ||
559a7a62 JK |
2639 | switch (case_pass) |
2640 | { | |
2641 | case case_sensitive_off: | |
2642 | c1 = tolower ((unsigned char) *string1); | |
2643 | c2 = tolower ((unsigned char) *string2); | |
2644 | break; | |
2645 | case case_sensitive_on: | |
b11b1f88 JK |
2646 | c1 = *string1; |
2647 | c2 = *string2; | |
559a7a62 JK |
2648 | break; |
2649 | } | |
b11b1f88 JK |
2650 | if (c1 != c2) |
2651 | break; | |
2652 | ||
2653 | if (*string1 != '\0') | |
2654 | { | |
2655 | string1++; | |
2656 | string2++; | |
2657 | } | |
0fe19209 | 2658 | } |
b11b1f88 JK |
2659 | |
2660 | switch (*string1) | |
0fe19209 | 2661 | { |
b11b1f88 JK |
2662 | /* Characters are non-equal unless they're both '\0'; we want to |
2663 | make sure we get the comparison right according to our | |
2664 | comparison in the cases where one of them is '\0' or '('. */ | |
2665 | case '\0': | |
2666 | if (*string2 == '\0') | |
559a7a62 | 2667 | break; |
b11b1f88 JK |
2668 | else |
2669 | return -1; | |
2670 | case '(': | |
2671 | if (*string2 == '\0') | |
2672 | return 1; | |
2673 | else | |
2674 | return -1; | |
2675 | default: | |
2676 | if (*string2 == '\0' || *string2 == '(') | |
2677 | return 1; | |
559a7a62 JK |
2678 | else if (c1 > c2) |
2679 | return 1; | |
2680 | else if (c1 < c2) | |
2681 | return -1; | |
2682 | /* PASSTHRU */ | |
0fe19209 | 2683 | } |
559a7a62 JK |
2684 | |
2685 | if (case_pass == case_sensitive_on) | |
2686 | return 0; | |
2687 | ||
2688 | /* Otherwise the strings were equal in case insensitive way, make | |
2689 | a more fine grained comparison in a case sensitive way. */ | |
2690 | ||
2691 | case_pass = case_sensitive_on; | |
2692 | string1 = saved_string1; | |
2693 | string2 = saved_string2; | |
0fe19209 | 2694 | } |
0fe19209 DC |
2695 | } |
2696 | ||
2de7ced7 DJ |
2697 | /* A simple comparison function with opposite semantics to strcmp. */ |
2698 | ||
2699 | int | |
2700 | streq (const char *lhs, const char *rhs) | |
2701 | { | |
2702 | return !strcmp (lhs, rhs); | |
2703 | } | |
c906108c | 2704 | \f |
c5aa993b | 2705 | |
c906108c | 2706 | /* |
c5aa993b JM |
2707 | ** subset_compare() |
2708 | ** Answer whether string_to_compare is a full or partial match to | |
2709 | ** template_string. The partial match must be in sequence starting | |
2710 | ** at index 0. | |
2711 | */ | |
c906108c | 2712 | int |
fba45db2 | 2713 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
2714 | { |
2715 | int match; | |
e0627e85 | 2716 | |
8731e58e AC |
2717 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
2718 | && strlen (string_to_compare) <= strlen (template_string)) | |
2719 | match = | |
2720 | (strncmp | |
2721 | (template_string, string_to_compare, strlen (string_to_compare)) == 0); | |
7a292a7a SS |
2722 | else |
2723 | match = 0; | |
2724 | return match; | |
2725 | } | |
c906108c | 2726 | |
7a292a7a | 2727 | static void |
fba45db2 | 2728 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
2729 | { |
2730 | pagination_enabled = 1; | |
2731 | } | |
2732 | ||
7a292a7a | 2733 | static void |
fba45db2 | 2734 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
2735 | { |
2736 | pagination_enabled = 0; | |
2737 | } | |
75feb17d DJ |
2738 | |
2739 | static void | |
2740 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
2741 | struct cmd_list_element *c, const char *value) | |
2742 | { | |
3e43a32a MS |
2743 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), |
2744 | value); | |
75feb17d | 2745 | } |
c906108c | 2746 | \f |
c5aa993b | 2747 | |
c906108c | 2748 | void |
fba45db2 | 2749 | initialize_utils (void) |
c906108c | 2750 | { |
35096d9d AC |
2751 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
2752 | Set number of characters gdb thinks are in a line."), _("\ | |
2753 | Show number of characters gdb thinks are in a line."), NULL, | |
2754 | set_width_command, | |
920d2a44 | 2755 | show_chars_per_line, |
35096d9d AC |
2756 | &setlist, &showlist); |
2757 | ||
2758 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
2759 | Set number of lines gdb thinks are in a page."), _("\ | |
2760 | Show number of lines gdb thinks are in a page."), NULL, | |
2761 | set_height_command, | |
920d2a44 | 2762 | show_lines_per_page, |
35096d9d | 2763 | &setlist, &showlist); |
c5aa993b | 2764 | |
c906108c SS |
2765 | init_page_info (); |
2766 | ||
5bf193a2 AC |
2767 | add_setshow_boolean_cmd ("pagination", class_support, |
2768 | &pagination_enabled, _("\ | |
2769 | Set state of pagination."), _("\ | |
2770 | Show state of pagination."), NULL, | |
2771 | NULL, | |
920d2a44 | 2772 | show_pagination_enabled, |
5bf193a2 | 2773 | &setlist, &showlist); |
4261bedc | 2774 | |
c906108c SS |
2775 | if (xdb_commands) |
2776 | { | |
c5aa993b | 2777 | add_com ("am", class_support, pagination_on_command, |
1bedd215 | 2778 | _("Enable pagination")); |
c5aa993b | 2779 | add_com ("sm", class_support, pagination_off_command, |
1bedd215 | 2780 | _("Disable pagination")); |
c906108c SS |
2781 | } |
2782 | ||
5bf193a2 AC |
2783 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, |
2784 | &sevenbit_strings, _("\ | |
2785 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
2786 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
2787 | NULL, | |
920d2a44 | 2788 | show_sevenbit_strings, |
5bf193a2 AC |
2789 | &setprintlist, &showprintlist); |
2790 | ||
75feb17d DJ |
2791 | add_setshow_boolean_cmd ("timestamp", class_maintenance, |
2792 | &debug_timestamp, _("\ | |
2793 | Set timestamping of debugging messages."), _("\ | |
2794 | Show timestamping of debugging messages."), _("\ | |
2795 | When set, debugging messages will be marked with seconds and microseconds."), | |
2796 | NULL, | |
2797 | show_debug_timestamp, | |
2798 | &setdebuglist, &showdebuglist); | |
c906108c SS |
2799 | } |
2800 | ||
581e13c1 MS |
2801 | /* Print routines to handle variable size regs, etc. */ |
2802 | /* Temporary storage using circular buffer. */ | |
c906108c | 2803 | #define NUMCELLS 16 |
0759e0bf | 2804 | #define CELLSIZE 50 |
c5aa993b | 2805 | static char * |
fba45db2 | 2806 | get_cell (void) |
c906108c SS |
2807 | { |
2808 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b | 2809 | static int cell = 0; |
e0627e85 | 2810 | |
c5aa993b JM |
2811 | if (++cell >= NUMCELLS) |
2812 | cell = 0; | |
c906108c SS |
2813 | return buf[cell]; |
2814 | } | |
2815 | ||
66bf4b3a | 2816 | const char * |
5af949e3 | 2817 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
2818 | { |
2819 | /* Truncate address to the size of a target address, avoiding shifts | |
2820 | larger or equal than the width of a CORE_ADDR. The local | |
2821 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
581e13c1 | 2822 | when it won't occur. */ |
66bf4b3a AC |
2823 | /* NOTE: This assumes that the significant address information is |
2824 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2825 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2826 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2827 | ||
5af949e3 | 2828 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
2829 | |
2830 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2831 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2832 | return hex_string (addr); | |
2833 | } | |
2834 | ||
f1310107 TJB |
2835 | /* This function is described in "defs.h". */ |
2836 | ||
2837 | const char * | |
2838 | print_core_address (struct gdbarch *gdbarch, CORE_ADDR address) | |
2839 | { | |
2840 | int addr_bit = gdbarch_addr_bit (gdbarch); | |
2841 | ||
2842 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2843 | address &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2844 | ||
2845 | /* FIXME: cagney/2002-05-03: Need local_address_string() function | |
2846 | that returns the language localized string formatted to a width | |
2847 | based on gdbarch_addr_bit. */ | |
2848 | if (addr_bit <= 32) | |
2849 | return hex_string_custom (address, 8); | |
2850 | else | |
2851 | return hex_string_custom (address, 16); | |
2852 | } | |
2853 | ||
8e3b41a9 JK |
2854 | /* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */ |
2855 | ||
2856 | hashval_t | |
2857 | core_addr_hash (const void *ap) | |
2858 | { | |
2859 | const CORE_ADDR *addrp = ap; | |
2860 | ||
2861 | return *addrp; | |
2862 | } | |
2863 | ||
2864 | /* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */ | |
2865 | ||
2866 | int | |
2867 | core_addr_eq (const void *ap, const void *bp) | |
2868 | { | |
2869 | const CORE_ADDR *addr_ap = ap; | |
2870 | const CORE_ADDR *addr_bp = bp; | |
2871 | ||
2872 | return *addr_ap == *addr_bp; | |
2873 | } | |
2874 | ||
8cf46f62 MK |
2875 | static char * |
2876 | decimal2str (char *sign, ULONGEST addr, int width) | |
104c1213 | 2877 | { |
8cf46f62 | 2878 | /* Steal code from valprint.c:print_decimal(). Should this worry |
581e13c1 | 2879 | about the real size of addr as the above does? */ |
104c1213 | 2880 | unsigned long temp[3]; |
8cf46f62 | 2881 | char *str = get_cell (); |
104c1213 | 2882 | int i = 0; |
5d502164 | 2883 | |
104c1213 JM |
2884 | do |
2885 | { | |
2886 | temp[i] = addr % (1000 * 1000 * 1000); | |
2887 | addr /= (1000 * 1000 * 1000); | |
2888 | i++; | |
bb599908 | 2889 | width -= 9; |
104c1213 JM |
2890 | } |
2891 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 2892 | |
bb599908 PH |
2893 | width += 9; |
2894 | if (width < 0) | |
2895 | width = 0; | |
8cf46f62 | 2896 | |
104c1213 JM |
2897 | switch (i) |
2898 | { | |
2899 | case 1: | |
8cf46f62 | 2900 | xsnprintf (str, CELLSIZE, "%s%0*lu", sign, width, temp[0]); |
104c1213 JM |
2901 | break; |
2902 | case 2: | |
8cf46f62 MK |
2903 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu", sign, width, |
2904 | temp[1], temp[0]); | |
104c1213 JM |
2905 | break; |
2906 | case 3: | |
8cf46f62 MK |
2907 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu%09lu", sign, width, |
2908 | temp[2], temp[1], temp[0]); | |
bb599908 PH |
2909 | break; |
2910 | default: | |
2911 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2912 | _("failed internal consistency check")); |
bb599908 | 2913 | } |
8cf46f62 MK |
2914 | |
2915 | return str; | |
bb599908 PH |
2916 | } |
2917 | ||
8cf46f62 MK |
2918 | static char * |
2919 | octal2str (ULONGEST addr, int width) | |
bb599908 PH |
2920 | { |
2921 | unsigned long temp[3]; | |
8cf46f62 | 2922 | char *str = get_cell (); |
bb599908 | 2923 | int i = 0; |
5d502164 | 2924 | |
bb599908 PH |
2925 | do |
2926 | { | |
2927 | temp[i] = addr % (0100000 * 0100000); | |
2928 | addr /= (0100000 * 0100000); | |
2929 | i++; | |
2930 | width -= 10; | |
2931 | } | |
2932 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 2933 | |
bb599908 PH |
2934 | width += 10; |
2935 | if (width < 0) | |
2936 | width = 0; | |
8cf46f62 | 2937 | |
bb599908 PH |
2938 | switch (i) |
2939 | { | |
2940 | case 1: | |
2941 | if (temp[0] == 0) | |
8cf46f62 | 2942 | xsnprintf (str, CELLSIZE, "%*o", width, 0); |
bb599908 | 2943 | else |
8cf46f62 | 2944 | xsnprintf (str, CELLSIZE, "0%0*lo", width, temp[0]); |
bb599908 PH |
2945 | break; |
2946 | case 2: | |
8cf46f62 | 2947 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo", width, temp[1], temp[0]); |
bb599908 PH |
2948 | break; |
2949 | case 3: | |
8cf46f62 MK |
2950 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo%010lo", width, |
2951 | temp[2], temp[1], temp[0]); | |
104c1213 JM |
2952 | break; |
2953 | default: | |
8731e58e | 2954 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 2955 | _("failed internal consistency check")); |
104c1213 | 2956 | } |
8cf46f62 MK |
2957 | |
2958 | return str; | |
104c1213 JM |
2959 | } |
2960 | ||
2961 | char * | |
623d3eb1 | 2962 | pulongest (ULONGEST u) |
104c1213 | 2963 | { |
623d3eb1 | 2964 | return decimal2str ("", u, 0); |
104c1213 JM |
2965 | } |
2966 | ||
2967 | char * | |
623d3eb1 | 2968 | plongest (LONGEST l) |
104c1213 | 2969 | { |
623d3eb1 DE |
2970 | if (l < 0) |
2971 | return decimal2str ("-", -l, 0); | |
104c1213 | 2972 | else |
623d3eb1 | 2973 | return decimal2str ("", l, 0); |
104c1213 JM |
2974 | } |
2975 | ||
8cf46f62 | 2976 | /* Eliminate warning from compiler on 32-bit systems. */ |
5683e87a AC |
2977 | static int thirty_two = 32; |
2978 | ||
104c1213 | 2979 | char * |
5683e87a | 2980 | phex (ULONGEST l, int sizeof_l) |
104c1213 | 2981 | { |
45a1e866 | 2982 | char *str; |
8cf46f62 | 2983 | |
5683e87a | 2984 | switch (sizeof_l) |
104c1213 JM |
2985 | { |
2986 | case 8: | |
45a1e866 | 2987 | str = get_cell (); |
8cf46f62 MK |
2988 | xsnprintf (str, CELLSIZE, "%08lx%08lx", |
2989 | (unsigned long) (l >> thirty_two), | |
2990 | (unsigned long) (l & 0xffffffff)); | |
104c1213 JM |
2991 | break; |
2992 | case 4: | |
45a1e866 | 2993 | str = get_cell (); |
8cf46f62 | 2994 | xsnprintf (str, CELLSIZE, "%08lx", (unsigned long) l); |
104c1213 JM |
2995 | break; |
2996 | case 2: | |
45a1e866 | 2997 | str = get_cell (); |
8cf46f62 | 2998 | xsnprintf (str, CELLSIZE, "%04x", (unsigned short) (l & 0xffff)); |
104c1213 JM |
2999 | break; |
3000 | default: | |
45a1e866 | 3001 | str = phex (l, sizeof (l)); |
5683e87a | 3002 | break; |
104c1213 | 3003 | } |
8cf46f62 | 3004 | |
5683e87a | 3005 | return str; |
104c1213 JM |
3006 | } |
3007 | ||
c5aa993b | 3008 | char * |
5683e87a | 3009 | phex_nz (ULONGEST l, int sizeof_l) |
c906108c | 3010 | { |
faf833ca | 3011 | char *str; |
8cf46f62 | 3012 | |
5683e87a | 3013 | switch (sizeof_l) |
c906108c | 3014 | { |
c5aa993b JM |
3015 | case 8: |
3016 | { | |
5683e87a | 3017 | unsigned long high = (unsigned long) (l >> thirty_two); |
5d502164 | 3018 | |
faf833ca | 3019 | str = get_cell (); |
c5aa993b | 3020 | if (high == 0) |
8cf46f62 MK |
3021 | xsnprintf (str, CELLSIZE, "%lx", |
3022 | (unsigned long) (l & 0xffffffff)); | |
c5aa993b | 3023 | else |
8cf46f62 MK |
3024 | xsnprintf (str, CELLSIZE, "%lx%08lx", high, |
3025 | (unsigned long) (l & 0xffffffff)); | |
c906108c | 3026 | break; |
c5aa993b JM |
3027 | } |
3028 | case 4: | |
faf833ca | 3029 | str = get_cell (); |
8cf46f62 | 3030 | xsnprintf (str, CELLSIZE, "%lx", (unsigned long) l); |
c5aa993b JM |
3031 | break; |
3032 | case 2: | |
faf833ca | 3033 | str = get_cell (); |
8cf46f62 | 3034 | xsnprintf (str, CELLSIZE, "%x", (unsigned short) (l & 0xffff)); |
c5aa993b JM |
3035 | break; |
3036 | default: | |
faf833ca | 3037 | str = phex_nz (l, sizeof (l)); |
5683e87a | 3038 | break; |
c906108c | 3039 | } |
8cf46f62 | 3040 | |
5683e87a | 3041 | return str; |
c906108c | 3042 | } |
ac2e2ef7 | 3043 | |
0759e0bf AC |
3044 | /* Converts a LONGEST to a C-format hexadecimal literal and stores it |
3045 | in a static string. Returns a pointer to this string. */ | |
3046 | char * | |
3047 | hex_string (LONGEST num) | |
3048 | { | |
3049 | char *result = get_cell (); | |
e0627e85 | 3050 | |
8cf46f62 | 3051 | xsnprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num))); |
0759e0bf AC |
3052 | return result; |
3053 | } | |
3054 | ||
3055 | /* Converts a LONGEST number to a C-format hexadecimal literal and | |
3056 | stores it in a static string. Returns a pointer to this string | |
3057 | that is valid until the next call. The number is padded on the | |
3058 | left with 0s to at least WIDTH characters. */ | |
3059 | char * | |
3060 | hex_string_custom (LONGEST num, int width) | |
3061 | { | |
3062 | char *result = get_cell (); | |
3063 | char *result_end = result + CELLSIZE - 1; | |
3064 | const char *hex = phex_nz (num, sizeof (num)); | |
3065 | int hex_len = strlen (hex); | |
3066 | ||
3067 | if (hex_len > width) | |
3068 | width = hex_len; | |
3069 | if (width + 2 >= CELLSIZE) | |
3e43a32a MS |
3070 | internal_error (__FILE__, __LINE__, _("\ |
3071 | hex_string_custom: insufficient space to store result")); | |
0759e0bf AC |
3072 | |
3073 | strcpy (result_end - width - 2, "0x"); | |
3074 | memset (result_end - width, '0', width); | |
3075 | strcpy (result_end - hex_len, hex); | |
3076 | return result_end - width - 2; | |
3077 | } | |
ac2e2ef7 | 3078 | |
bb599908 PH |
3079 | /* Convert VAL to a numeral in the given radix. For |
3080 | * radix 10, IS_SIGNED may be true, indicating a signed quantity; | |
3081 | * otherwise VAL is interpreted as unsigned. If WIDTH is supplied, | |
3082 | * it is the minimum width (0-padded if needed). USE_C_FORMAT means | |
3083 | * to use C format in all cases. If it is false, then 'x' | |
581e13c1 | 3084 | * and 'o' formats do not include a prefix (0x or leading 0). */ |
bb599908 PH |
3085 | |
3086 | char * | |
3087 | int_string (LONGEST val, int radix, int is_signed, int width, | |
3088 | int use_c_format) | |
3089 | { | |
3090 | switch (radix) | |
3091 | { | |
3092 | case 16: | |
3093 | { | |
3094 | char *result; | |
5d502164 | 3095 | |
bb599908 PH |
3096 | if (width == 0) |
3097 | result = hex_string (val); | |
3098 | else | |
3099 | result = hex_string_custom (val, width); | |
3100 | if (! use_c_format) | |
3101 | result += 2; | |
3102 | return result; | |
3103 | } | |
3104 | case 10: | |
3105 | { | |
bb599908 | 3106 | if (is_signed && val < 0) |
8cf46f62 | 3107 | return decimal2str ("-", -val, width); |
bb599908 | 3108 | else |
8cf46f62 | 3109 | return decimal2str ("", val, width); |
bb599908 PH |
3110 | } |
3111 | case 8: | |
3112 | { | |
8cf46f62 | 3113 | char *result = octal2str (val, width); |
5d502164 | 3114 | |
bb599908 PH |
3115 | if (use_c_format || val == 0) |
3116 | return result; | |
3117 | else | |
3118 | return result + 1; | |
3119 | } | |
3120 | default: | |
3121 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3122 | _("failed internal consistency check")); |
bb599908 PH |
3123 | } |
3124 | } | |
3125 | ||
03dd37c3 AC |
3126 | /* Convert a CORE_ADDR into a string. */ |
3127 | const char * | |
3128 | core_addr_to_string (const CORE_ADDR addr) | |
49b563f9 KS |
3129 | { |
3130 | char *str = get_cell (); | |
e0627e85 | 3131 | |
49b563f9 KS |
3132 | strcpy (str, "0x"); |
3133 | strcat (str, phex (addr, sizeof (addr))); | |
3134 | return str; | |
3135 | } | |
3136 | ||
3137 | const char * | |
3138 | core_addr_to_string_nz (const CORE_ADDR addr) | |
03dd37c3 AC |
3139 | { |
3140 | char *str = get_cell (); | |
e0627e85 | 3141 | |
03dd37c3 AC |
3142 | strcpy (str, "0x"); |
3143 | strcat (str, phex_nz (addr, sizeof (addr))); | |
3144 | return str; | |
3145 | } | |
3146 | ||
3147 | /* Convert a string back into a CORE_ADDR. */ | |
3148 | CORE_ADDR | |
3149 | string_to_core_addr (const char *my_string) | |
3150 | { | |
3151 | CORE_ADDR addr = 0; | |
9544c605 | 3152 | |
03dd37c3 AC |
3153 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
3154 | { | |
ced572fe | 3155 | /* Assume that it is in hex. */ |
03dd37c3 | 3156 | int i; |
5d502164 | 3157 | |
03dd37c3 AC |
3158 | for (i = 2; my_string[i] != '\0'; i++) |
3159 | { | |
3160 | if (isdigit (my_string[i])) | |
3161 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 3162 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
3163 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
3164 | else | |
63f06803 | 3165 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
3166 | } |
3167 | } | |
3168 | else | |
3169 | { | |
3170 | /* Assume that it is in decimal. */ | |
3171 | int i; | |
5d502164 | 3172 | |
03dd37c3 AC |
3173 | for (i = 0; my_string[i] != '\0'; i++) |
3174 | { | |
3175 | if (isdigit (my_string[i])) | |
3176 | addr = (my_string[i] - '0') + (addr * 10); | |
3177 | else | |
63f06803 | 3178 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
3179 | } |
3180 | } | |
9544c605 | 3181 | |
03dd37c3 AC |
3182 | return addr; |
3183 | } | |
58d370e0 | 3184 | |
17ea7499 CES |
3185 | const char * |
3186 | host_address_to_string (const void *addr) | |
3187 | { | |
3188 | char *str = get_cell (); | |
ea8992ce | 3189 | |
773698b5 | 3190 | xsnprintf (str, CELLSIZE, "0x%s", phex_nz ((uintptr_t) addr, sizeof (addr))); |
17ea7499 CES |
3191 | return str; |
3192 | } | |
3193 | ||
58d370e0 TT |
3194 | char * |
3195 | gdb_realpath (const char *filename) | |
3196 | { | |
70d35819 AC |
3197 | /* Method 1: The system has a compile time upper bound on a filename |
3198 | path. Use that and realpath() to canonicalize the name. This is | |
3199 | the most common case. Note that, if there isn't a compile time | |
3200 | upper bound, you want to avoid realpath() at all costs. */ | |
a4db0f07 | 3201 | #if defined(HAVE_REALPATH) |
70d35819 | 3202 | { |
a4db0f07 | 3203 | # if defined (PATH_MAX) |
70d35819 | 3204 | char buf[PATH_MAX]; |
a4db0f07 RH |
3205 | # define USE_REALPATH |
3206 | # elif defined (MAXPATHLEN) | |
70d35819 | 3207 | char buf[MAXPATHLEN]; |
a4db0f07 RH |
3208 | # define USE_REALPATH |
3209 | # endif | |
70d35819 | 3210 | # if defined (USE_REALPATH) |
82c0260e | 3211 | const char *rp = realpath (filename, buf); |
5d502164 | 3212 | |
70d35819 AC |
3213 | if (rp == NULL) |
3214 | rp = filename; | |
3215 | return xstrdup (rp); | |
70d35819 | 3216 | # endif |
6f88d630 | 3217 | } |
a4db0f07 RH |
3218 | #endif /* HAVE_REALPATH */ |
3219 | ||
70d35819 AC |
3220 | /* Method 2: The host system (i.e., GNU) has the function |
3221 | canonicalize_file_name() which malloc's a chunk of memory and | |
3222 | returns that, use that. */ | |
3223 | #if defined(HAVE_CANONICALIZE_FILE_NAME) | |
3224 | { | |
3225 | char *rp = canonicalize_file_name (filename); | |
5d502164 | 3226 | |
70d35819 AC |
3227 | if (rp == NULL) |
3228 | return xstrdup (filename); | |
3229 | else | |
3230 | return rp; | |
3231 | } | |
58d370e0 | 3232 | #endif |
70d35819 | 3233 | |
6411e720 AC |
3234 | /* FIXME: cagney/2002-11-13: |
3235 | ||
3236 | Method 2a: Use realpath() with a NULL buffer. Some systems, due | |
7a9dd1b2 | 3237 | to the problems described in method 3, have modified their |
6411e720 AC |
3238 | realpath() implementation so that it will allocate a buffer when |
3239 | NULL is passed in. Before this can be used, though, some sort of | |
3240 | configure time test would need to be added. Otherwize the code | |
3241 | will likely core dump. */ | |
3242 | ||
70d35819 AC |
3243 | /* Method 3: Now we're getting desperate! The system doesn't have a |
3244 | compile time buffer size and no alternative function. Query the | |
3245 | OS, using pathconf(), for the buffer limit. Care is needed | |
3246 | though, some systems do not limit PATH_MAX (return -1 for | |
3247 | pathconf()) making it impossible to pass a correctly sized buffer | |
3248 | to realpath() (it could always overflow). On those systems, we | |
3249 | skip this. */ | |
3250 | #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA) | |
3251 | { | |
3252 | /* Find out the max path size. */ | |
3253 | long path_max = pathconf ("/", _PC_PATH_MAX); | |
5d502164 | 3254 | |
70d35819 AC |
3255 | if (path_max > 0) |
3256 | { | |
3257 | /* PATH_MAX is bounded. */ | |
3258 | char *buf = alloca (path_max); | |
3259 | char *rp = realpath (filename, buf); | |
5d502164 | 3260 | |
70d35819 AC |
3261 | return xstrdup (rp ? rp : filename); |
3262 | } | |
3263 | } | |
3264 | #endif | |
3265 | ||
9c5e4386 JB |
3266 | /* The MS Windows method. If we don't have realpath, we assume we |
3267 | don't have symlinks and just canonicalize to a Windows absolute | |
3268 | path. GetFullPath converts ../ and ./ in relative paths to | |
3269 | absolute paths, filling in current drive if one is not given | |
3270 | or using the current directory of a specified drive (eg, "E:foo"). | |
3271 | It also converts all forward slashes to back slashes. */ | |
3272 | /* The file system is case-insensitive but case-preserving. | |
3273 | So we do not lowercase the path. Otherwise, we might not | |
3274 | be able to display the original casing in a given path. */ | |
3275 | #if defined (_WIN32) | |
3276 | { | |
3277 | char buf[MAX_PATH]; | |
3278 | DWORD len = GetFullPathName (filename, MAX_PATH, buf, NULL); | |
3279 | ||
3280 | if (len > 0 && len < MAX_PATH) | |
3281 | return xstrdup (buf); | |
3282 | } | |
3283 | #endif | |
3284 | ||
70d35819 AC |
3285 | /* This system is a lost cause, just dup the buffer. */ |
3286 | return xstrdup (filename); | |
58d370e0 | 3287 | } |
303c8ebd JB |
3288 | |
3289 | /* Return a copy of FILENAME, with its directory prefix canonicalized | |
3290 | by gdb_realpath. */ | |
3291 | ||
3292 | char * | |
3293 | xfullpath (const char *filename) | |
3294 | { | |
3295 | const char *base_name = lbasename (filename); | |
3296 | char *dir_name; | |
3297 | char *real_path; | |
3298 | char *result; | |
3299 | ||
3300 | /* Extract the basename of filename, and return immediately | |
581e13c1 | 3301 | a copy of filename if it does not contain any directory prefix. */ |
303c8ebd JB |
3302 | if (base_name == filename) |
3303 | return xstrdup (filename); | |
3304 | ||
3305 | dir_name = alloca ((size_t) (base_name - filename + 2)); | |
3306 | /* Allocate enough space to store the dir_name + plus one extra | |
3307 | character sometimes needed under Windows (see below), and | |
581e13c1 | 3308 | then the closing \000 character. */ |
303c8ebd JB |
3309 | strncpy (dir_name, filename, base_name - filename); |
3310 | dir_name[base_name - filename] = '\000'; | |
3311 | ||
3312 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3313 | /* We need to be careful when filename is of the form 'd:foo', which | |
3314 | is equivalent of d:./foo, which is totally different from d:/foo. */ | |
8731e58e | 3315 | if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':') |
303c8ebd JB |
3316 | { |
3317 | dir_name[2] = '.'; | |
3318 | dir_name[3] = '\000'; | |
3319 | } | |
3320 | #endif | |
3321 | ||
3322 | /* Canonicalize the directory prefix, and build the resulting | |
581e13c1 | 3323 | filename. If the dirname realpath already contains an ending |
303c8ebd JB |
3324 | directory separator, avoid doubling it. */ |
3325 | real_path = gdb_realpath (dir_name); | |
3326 | if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1])) | |
c4f7c687 | 3327 | result = concat (real_path, base_name, (char *) NULL); |
303c8ebd | 3328 | else |
c4f7c687 | 3329 | result = concat (real_path, SLASH_STRING, base_name, (char *) NULL); |
303c8ebd JB |
3330 | |
3331 | xfree (real_path); | |
3332 | return result; | |
3333 | } | |
5b5d99cf JB |
3334 | |
3335 | ||
3336 | /* This is the 32-bit CRC function used by the GNU separate debug | |
3337 | facility. An executable may contain a section named | |
3338 | .gnu_debuglink, which holds the name of a separate executable file | |
3339 | containing its debug info, and a checksum of that file's contents, | |
3340 | computed using this function. */ | |
3341 | unsigned long | |
3342 | gnu_debuglink_crc32 (unsigned long crc, unsigned char *buf, size_t len) | |
3343 | { | |
6e0a4fbc | 3344 | static const unsigned int crc32_table[256] = { |
8731e58e AC |
3345 | 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, |
3346 | 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, | |
3347 | 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, | |
3348 | 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, | |
3349 | 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, | |
3350 | 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, | |
3351 | 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, | |
3352 | 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, | |
3353 | 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, | |
3354 | 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, | |
3355 | 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, | |
3356 | 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, | |
3357 | 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, | |
3358 | 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, | |
3359 | 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, | |
3360 | 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, | |
3361 | 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, | |
3362 | 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, | |
3363 | 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, | |
3364 | 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, | |
3365 | 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, | |
3366 | 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, | |
3367 | 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, | |
3368 | 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, | |
3369 | 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, | |
3370 | 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, | |
3371 | 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, | |
3372 | 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, | |
3373 | 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, | |
3374 | 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, | |
3375 | 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, | |
3376 | 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, | |
3377 | 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, | |
3378 | 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, | |
3379 | 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, | |
3380 | 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, | |
3381 | 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, | |
3382 | 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, | |
3383 | 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, | |
3384 | 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, | |
3385 | 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, | |
3386 | 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, | |
3387 | 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, | |
3388 | 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, | |
3389 | 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, | |
3390 | 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, | |
3391 | 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, | |
3392 | 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, | |
3393 | 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, | |
3394 | 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, | |
3395 | 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, | |
3396 | 0x2d02ef8d | |
3397 | }; | |
5b5d99cf JB |
3398 | unsigned char *end; |
3399 | ||
3400 | crc = ~crc & 0xffffffff; | |
3401 | for (end = buf + len; buf < end; ++buf) | |
3402 | crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8); | |
82ae4854 | 3403 | return ~crc & 0xffffffff; |
5b5d99cf | 3404 | } |
5b03f266 AC |
3405 | |
3406 | ULONGEST | |
3407 | align_up (ULONGEST v, int n) | |
3408 | { | |
3409 | /* Check that N is really a power of two. */ | |
3410 | gdb_assert (n && (n & (n-1)) == 0); | |
3411 | return (v + n - 1) & -n; | |
3412 | } | |
3413 | ||
3414 | ULONGEST | |
3415 | align_down (ULONGEST v, int n) | |
3416 | { | |
3417 | /* Check that N is really a power of two. */ | |
3418 | gdb_assert (n && (n & (n-1)) == 0); | |
3419 | return (v & -n); | |
3420 | } | |
ae5a43e0 DJ |
3421 | |
3422 | /* Allocation function for the libiberty hash table which uses an | |
3423 | obstack. The obstack is passed as DATA. */ | |
3424 | ||
3425 | void * | |
3426 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
3427 | { | |
3428 | unsigned int total = size * count; | |
3429 | void *ptr = obstack_alloc ((struct obstack *) data, total); | |
e0627e85 | 3430 | |
ae5a43e0 DJ |
3431 | memset (ptr, 0, total); |
3432 | return ptr; | |
3433 | } | |
3434 | ||
3435 | /* Trivial deallocation function for the libiberty splay tree and hash | |
3436 | table - don't deallocate anything. Rely on later deletion of the | |
3437 | obstack. DATA will be the obstack, although it is not needed | |
3438 | here. */ | |
3439 | ||
3440 | void | |
3441 | dummy_obstack_deallocate (void *object, void *data) | |
3442 | { | |
3443 | return; | |
3444 | } | |
253c8abb DJ |
3445 | |
3446 | /* The bit offset of the highest byte in a ULONGEST, for overflow | |
3447 | checking. */ | |
3448 | ||
3449 | #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT) | |
3450 | ||
3451 | /* True (non-zero) iff DIGIT is a valid digit in radix BASE, | |
3452 | where 2 <= BASE <= 36. */ | |
3453 | ||
3454 | static int | |
3455 | is_digit_in_base (unsigned char digit, int base) | |
3456 | { | |
3457 | if (!isalnum (digit)) | |
3458 | return 0; | |
3459 | if (base <= 10) | |
3460 | return (isdigit (digit) && digit < base + '0'); | |
3461 | else | |
3462 | return (isdigit (digit) || tolower (digit) < base - 10 + 'a'); | |
3463 | } | |
3464 | ||
3465 | static int | |
3466 | digit_to_int (unsigned char c) | |
3467 | { | |
3468 | if (isdigit (c)) | |
3469 | return c - '0'; | |
3470 | else | |
3471 | return tolower (c) - 'a' + 10; | |
3472 | } | |
3473 | ||
3474 | /* As for strtoul, but for ULONGEST results. */ | |
3475 | ||
3476 | ULONGEST | |
3477 | strtoulst (const char *num, const char **trailer, int base) | |
3478 | { | |
3479 | unsigned int high_part; | |
3480 | ULONGEST result; | |
3481 | int minus = 0; | |
3482 | int i = 0; | |
3483 | ||
3484 | /* Skip leading whitespace. */ | |
3485 | while (isspace (num[i])) | |
3486 | i++; | |
3487 | ||
3488 | /* Handle prefixes. */ | |
3489 | if (num[i] == '+') | |
3490 | i++; | |
3491 | else if (num[i] == '-') | |
3492 | { | |
3493 | minus = 1; | |
3494 | i++; | |
3495 | } | |
3496 | ||
3497 | if (base == 0 || base == 16) | |
3498 | { | |
3499 | if (num[i] == '0' && (num[i + 1] == 'x' || num[i + 1] == 'X')) | |
3500 | { | |
3501 | i += 2; | |
3502 | if (base == 0) | |
3503 | base = 16; | |
3504 | } | |
3505 | } | |
3506 | ||
3507 | if (base == 0 && num[i] == '0') | |
3508 | base = 8; | |
3509 | ||
3510 | if (base == 0) | |
3511 | base = 10; | |
3512 | ||
3513 | if (base < 2 || base > 36) | |
3514 | { | |
3515 | errno = EINVAL; | |
3516 | return 0; | |
3517 | } | |
3518 | ||
3519 | result = high_part = 0; | |
3520 | for (; is_digit_in_base (num[i], base); i += 1) | |
3521 | { | |
3522 | result = result * base + digit_to_int (num[i]); | |
3523 | high_part = high_part * base + (unsigned int) (result >> HIGH_BYTE_POSN); | |
3524 | result &= ((ULONGEST) 1 << HIGH_BYTE_POSN) - 1; | |
3525 | if (high_part > 0xff) | |
3526 | { | |
3527 | errno = ERANGE; | |
3528 | result = ~ (ULONGEST) 0; | |
3529 | high_part = 0; | |
3530 | minus = 0; | |
3531 | break; | |
3532 | } | |
3533 | } | |
3534 | ||
3535 | if (trailer != NULL) | |
3536 | *trailer = &num[i]; | |
3537 | ||
3538 | result = result + ((ULONGEST) high_part << HIGH_BYTE_POSN); | |
3539 | if (minus) | |
3540 | return -result; | |
3541 | else | |
3542 | return result; | |
3543 | } | |
e1024ff1 DJ |
3544 | |
3545 | /* Simple, portable version of dirname that does not modify its | |
3546 | argument. */ | |
3547 | ||
3548 | char * | |
3549 | ldirname (const char *filename) | |
3550 | { | |
3551 | const char *base = lbasename (filename); | |
3552 | char *dirname; | |
3553 | ||
3554 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
3555 | --base; | |
3556 | ||
3557 | if (base == filename) | |
3558 | return NULL; | |
3559 | ||
3560 | dirname = xmalloc (base - filename + 2); | |
3561 | memcpy (dirname, filename, base - filename); | |
3562 | ||
3563 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
3564 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
3565 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
3566 | && !IS_DIR_SEPARATOR (filename[0])) | |
3567 | dirname[base++ - filename] = '.'; | |
3568 | ||
3569 | dirname[base - filename] = '\0'; | |
3570 | return dirname; | |
3571 | } | |
d1a41061 PP |
3572 | |
3573 | /* Call libiberty's buildargv, and return the result. | |
3574 | If buildargv fails due to out-of-memory, call nomem. | |
3575 | Therefore, the returned value is guaranteed to be non-NULL, | |
3576 | unless the parameter itself is NULL. */ | |
3577 | ||
3578 | char ** | |
3579 | gdb_buildargv (const char *s) | |
3580 | { | |
3581 | char **argv = buildargv (s); | |
e0627e85 | 3582 | |
d1a41061 | 3583 | if (s != NULL && argv == NULL) |
d26e3629 | 3584 | malloc_failure (0); |
d1a41061 PP |
3585 | return argv; |
3586 | } | |
3c16cced | 3587 | |
dc146f7c VP |
3588 | int |
3589 | compare_positive_ints (const void *ap, const void *bp) | |
3590 | { | |
3591 | /* Because we know we're comparing two ints which are positive, | |
3592 | there's no danger of overflow here. */ | |
3593 | return * (int *) ap - * (int *) bp; | |
3594 | } | |
3595 | ||
f8eba3c6 TT |
3596 | /* String compare function for qsort. */ |
3597 | ||
3598 | int | |
3599 | compare_strings (const void *arg1, const void *arg2) | |
3600 | { | |
3601 | const char **s1 = (const char **) arg1; | |
3602 | const char **s2 = (const char **) arg2; | |
3603 | ||
3604 | return strcmp (*s1, *s2); | |
3605 | } | |
3606 | ||
d18b8b7a | 3607 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3e43a32a MS |
3608 | #define AMBIGUOUS_MESS2 \ |
3609 | ".\nUse \"set gnutarget format-name\" to specify the format." | |
d18b8b7a HZ |
3610 | |
3611 | const char * | |
3612 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) | |
3613 | { | |
3614 | char *ret, *retp; | |
3615 | int ret_len; | |
3616 | char **p; | |
3617 | ||
3618 | /* Check if errmsg just need simple return. */ | |
3619 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
3620 | return bfd_errmsg (error_tag); | |
3621 | ||
3622 | ret_len = strlen (bfd_errmsg (error_tag)) + strlen (AMBIGUOUS_MESS1) | |
3623 | + strlen (AMBIGUOUS_MESS2); | |
3624 | for (p = matching; *p; p++) | |
3625 | ret_len += strlen (*p) + 1; | |
3626 | ret = xmalloc (ret_len + 1); | |
3627 | retp = ret; | |
3628 | make_cleanup (xfree, ret); | |
3629 | ||
3630 | strcpy (retp, bfd_errmsg (error_tag)); | |
3631 | retp += strlen (retp); | |
3632 | ||
3633 | strcpy (retp, AMBIGUOUS_MESS1); | |
3634 | retp += strlen (retp); | |
3635 | ||
3636 | for (p = matching; *p; p++) | |
3637 | { | |
3638 | sprintf (retp, " %s", *p); | |
3639 | retp += strlen (retp); | |
3640 | } | |
3641 | xfree (matching); | |
3642 | ||
3643 | strcpy (retp, AMBIGUOUS_MESS2); | |
3644 | ||
3645 | return ret; | |
3646 | } | |
3647 | ||
74164c56 JK |
3648 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
3649 | ||
3650 | int | |
3651 | parse_pid_to_attach (char *args) | |
3652 | { | |
3653 | unsigned long pid; | |
3654 | char *dummy; | |
3655 | ||
3656 | if (!args) | |
3657 | error_no_arg (_("process-id to attach")); | |
3658 | ||
3659 | dummy = args; | |
3660 | pid = strtoul (args, &dummy, 0); | |
3661 | /* Some targets don't set errno on errors, grrr! */ | |
3662 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
3663 | error (_("Illegal process-id: %s."), args); | |
3664 | ||
3665 | return pid; | |
3666 | } | |
3667 | ||
353d1d73 JK |
3668 | /* Helper for make_bpstat_clear_actions_cleanup. */ |
3669 | ||
3670 | static void | |
3671 | do_bpstat_clear_actions_cleanup (void *unused) | |
3672 | { | |
3673 | bpstat_clear_actions (); | |
3674 | } | |
3675 | ||
3676 | /* Call bpstat_clear_actions for the case an exception is throw. You should | |
3677 | discard_cleanups if no exception is caught. */ | |
3678 | ||
3679 | struct cleanup * | |
3680 | make_bpstat_clear_actions_cleanup (void) | |
3681 | { | |
3682 | return make_cleanup (do_bpstat_clear_actions_cleanup, NULL); | |
3683 | } | |
3684 | ||
df15bd07 JK |
3685 | /* Check for GCC >= 4.x according to the symtab->producer string. Return minor |
3686 | version (x) of 4.x in such case. If it is not GCC or it is GCC older than | |
3687 | 4.x return -1. If it is GCC 5.x or higher return INT_MAX. */ | |
3688 | ||
3689 | int | |
3690 | producer_is_gcc_ge_4 (const char *producer) | |
3691 | { | |
3692 | const char *cs; | |
3693 | int major, minor; | |
3694 | ||
3695 | if (producer == NULL) | |
3696 | { | |
3697 | /* For unknown compilers expect their behavior is not compliant. For GCC | |
3698 | this case can also happen for -gdwarf-4 type units supported since | |
3699 | gcc-4.5. */ | |
3700 | ||
3701 | return -1; | |
3702 | } | |
3703 | ||
3704 | /* Skip any identifier after "GNU " - such as "C++" or "Java". */ | |
3705 | ||
3706 | if (strncmp (producer, "GNU ", strlen ("GNU ")) != 0) | |
3707 | { | |
3708 | /* For non-GCC compilers expect their behavior is not compliant. */ | |
3709 | ||
3710 | return -1; | |
3711 | } | |
3712 | cs = &producer[strlen ("GNU ")]; | |
3713 | while (*cs && !isdigit (*cs)) | |
3714 | cs++; | |
3715 | if (sscanf (cs, "%d.%d", &major, &minor) != 2) | |
3716 | { | |
3717 | /* Not recognized as GCC. */ | |
3718 | ||
3719 | return -1; | |
3720 | } | |
3721 | ||
3722 | if (major < 4) | |
3723 | return -1; | |
3724 | if (major > 4) | |
3725 | return INT_MAX; | |
3726 | return minor; | |
3727 | } | |
3728 | ||
e4ab2fad JK |
3729 | /* Helper for make_cleanup_free_char_ptr_vec. */ |
3730 | ||
3731 | static void | |
3732 | do_free_char_ptr_vec (void *arg) | |
3733 | { | |
3734 | VEC (char_ptr) *char_ptr_vec = arg; | |
3735 | ||
3736 | free_char_ptr_vec (char_ptr_vec); | |
3737 | } | |
3738 | ||
3739 | /* Make cleanup handler calling xfree for each element of CHAR_PTR_VEC and | |
3740 | final VEC_free for CHAR_PTR_VEC itself. | |
3741 | ||
3742 | You must not modify CHAR_PTR_VEC after this cleanup registration as the | |
3743 | CHAR_PTR_VEC base address may change on its updates. Contrary to VEC_free | |
3744 | this function does not (cannot) clear the pointer. */ | |
3745 | ||
3746 | struct cleanup * | |
3747 | make_cleanup_free_char_ptr_vec (VEC (char_ptr) *char_ptr_vec) | |
3748 | { | |
3749 | return make_cleanup (do_free_char_ptr_vec, char_ptr_vec); | |
3750 | } | |
3751 | ||
6dea1fbd JK |
3752 | /* Substitute all occurences of string FROM by string TO in *STRINGP. *STRINGP |
3753 | must come from xrealloc-compatible allocator and it may be updated. FROM | |
1564a261 JK |
3754 | needs to be delimited by IS_DIR_SEPARATOR or DIRNAME_SEPARATOR (or be |
3755 | located at the start or end of *STRINGP. */ | |
6dea1fbd JK |
3756 | |
3757 | void | |
3758 | substitute_path_component (char **stringp, const char *from, const char *to) | |
3759 | { | |
3760 | char *string = *stringp, *s; | |
3761 | const size_t from_len = strlen (from); | |
3762 | const size_t to_len = strlen (to); | |
3763 | ||
3764 | for (s = string;;) | |
3765 | { | |
3766 | s = strstr (s, from); | |
3767 | if (s == NULL) | |
3768 | break; | |
3769 | ||
1564a261 JK |
3770 | if ((s == string || IS_DIR_SEPARATOR (s[-1]) |
3771 | || s[-1] == DIRNAME_SEPARATOR) | |
3772 | && (s[from_len] == '\0' || IS_DIR_SEPARATOR (s[from_len]) | |
3773 | || s[from_len] == DIRNAME_SEPARATOR)) | |
6dea1fbd JK |
3774 | { |
3775 | char *string_new; | |
3776 | ||
3777 | string_new = xrealloc (string, (strlen (string) + to_len + 1)); | |
3778 | ||
3779 | /* Relocate the current S pointer. */ | |
3780 | s = s - string + string_new; | |
3781 | string = string_new; | |
3782 | ||
3783 | /* Replace from by to. */ | |
3784 | memmove (&s[to_len], &s[from_len], strlen (&s[from_len]) + 1); | |
3785 | memcpy (s, to, to_len); | |
3786 | ||
3787 | s += to_len; | |
3788 | } | |
3789 | else | |
3790 | s++; | |
3791 | } | |
3792 | ||
3793 | *stringp = string; | |
3794 | } | |
3795 | ||
0b6cb71e DE |
3796 | #ifdef HAVE_WAITPID |
3797 | ||
3798 | #ifdef SIGALRM | |
3799 | ||
3800 | /* SIGALRM handler for waitpid_with_timeout. */ | |
3801 | ||
3802 | static void | |
3803 | sigalrm_handler (int signo) | |
3804 | { | |
3805 | /* Nothing to do. */ | |
3806 | } | |
3807 | ||
3808 | #endif | |
3809 | ||
3810 | /* Wrapper to wait for child PID to die with TIMEOUT. | |
3811 | TIMEOUT is the time to stop waiting in seconds. | |
3812 | If TIMEOUT is zero, pass WNOHANG to waitpid. | |
3813 | Returns PID if it was successfully waited for, otherwise -1. | |
3814 | ||
3815 | Timeouts are currently implemented with alarm and SIGALRM. | |
3816 | If the host does not support them, this waits "forever". | |
3817 | It would be odd though for a host to have waitpid and not SIGALRM. */ | |
3818 | ||
3819 | pid_t | |
3820 | wait_to_die_with_timeout (pid_t pid, int *status, int timeout) | |
3821 | { | |
3822 | pid_t waitpid_result; | |
3823 | ||
3824 | gdb_assert (pid > 0); | |
3825 | gdb_assert (timeout >= 0); | |
3826 | ||
3827 | if (timeout > 0) | |
3828 | { | |
3829 | #ifdef SIGALRM | |
3830 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3831 | struct sigaction sa, old_sa; | |
3832 | ||
3833 | sa.sa_handler = sigalrm_handler; | |
3834 | sigemptyset (&sa.sa_mask); | |
3835 | sa.sa_flags = 0; | |
3836 | sigaction (SIGALRM, &sa, &old_sa); | |
3837 | #else | |
3838 | void (*ofunc) (); | |
3839 | ||
3840 | ofunc = (void (*)()) signal (SIGALRM, sigalrm_handler); | |
3841 | #endif | |
3842 | ||
3843 | alarm (timeout); | |
3844 | #endif | |
3845 | ||
3846 | waitpid_result = waitpid (pid, status, 0); | |
3847 | ||
3848 | #ifdef SIGALRM | |
3849 | alarm (0); | |
3850 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3851 | sigaction (SIGALRM, &old_sa, NULL); | |
3852 | #else | |
3853 | signal (SIGALRM, ofunc); | |
3854 | #endif | |
3855 | #endif | |
3856 | } | |
3857 | else | |
3858 | waitpid_result = waitpid (pid, status, WNOHANG); | |
3859 | ||
3860 | if (waitpid_result == pid) | |
3861 | return pid; | |
3862 | else | |
3863 | return -1; | |
3864 | } | |
3865 | ||
3866 | #endif /* HAVE_WAITPID */ | |
3867 | ||
202cbf1c JK |
3868 | /* Provide fnmatch compatible function for FNM_FILE_NAME matching of host files. |
3869 | Both FNM_FILE_NAME and FNM_NOESCAPE must be set in FLAGS. | |
3870 | ||
3871 | It handles correctly HAVE_DOS_BASED_FILE_SYSTEM and | |
3872 | HAVE_CASE_INSENSITIVE_FILE_SYSTEM. */ | |
3873 | ||
3874 | int | |
3875 | gdb_filename_fnmatch (const char *pattern, const char *string, int flags) | |
3876 | { | |
3877 | gdb_assert ((flags & FNM_FILE_NAME) != 0); | |
3878 | ||
3879 | /* It is unclear how '\' escaping vs. directory separator should coexist. */ | |
3880 | gdb_assert ((flags & FNM_NOESCAPE) != 0); | |
3881 | ||
3882 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3883 | { | |
3884 | char *pattern_slash, *string_slash; | |
3885 | ||
3886 | /* Replace '\' by '/' in both strings. */ | |
3887 | ||
3888 | pattern_slash = alloca (strlen (pattern) + 1); | |
3889 | strcpy (pattern_slash, pattern); | |
3890 | pattern = pattern_slash; | |
3891 | for (; *pattern_slash != 0; pattern_slash++) | |
3892 | if (IS_DIR_SEPARATOR (*pattern_slash)) | |
3893 | *pattern_slash = '/'; | |
3894 | ||
3895 | string_slash = alloca (strlen (string) + 1); | |
3896 | strcpy (string_slash, string); | |
3897 | string = string_slash; | |
3898 | for (; *string_slash != 0; string_slash++) | |
3899 | if (IS_DIR_SEPARATOR (*string_slash)) | |
3900 | *string_slash = '/'; | |
3901 | } | |
3902 | #endif /* HAVE_DOS_BASED_FILE_SYSTEM */ | |
3903 | ||
3904 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
3905 | flags |= FNM_CASEFOLD; | |
3906 | #endif /* HAVE_CASE_INSENSITIVE_FILE_SYSTEM */ | |
3907 | ||
3908 | return fnmatch (pattern, string, flags); | |
3909 | } | |
3910 | ||
2c0b251b PA |
3911 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
3912 | extern initialize_file_ftype _initialize_utils; | |
3913 | ||
3c16cced PA |
3914 | void |
3915 | _initialize_utils (void) | |
3916 | { | |
3917 | add_internal_problem_command (&internal_error_problem); | |
3918 | add_internal_problem_command (&internal_warning_problem); | |
3919 | } |