Commit | Line | Data |
---|---|---|
c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
1bac305b | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, |
0fb0cc75 | 4 | 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, |
7b6bb8da | 5 | 2009, 2010, 2011 Free Software Foundation, Inc. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c | 21 | |
4e8f7a8b | 22 | #include "defs.h" |
5a56e9c5 | 23 | #include "dyn-string.h" |
4e8f7a8b DJ |
24 | #include "gdb_assert.h" |
25 | #include <ctype.h> | |
26 | #include "gdb_string.h" | |
0b6cb71e | 27 | #include "gdb_wait.h" |
4e8f7a8b | 28 | #include "event-top.h" |
60250e8b | 29 | #include "exceptions.h" |
95e54da7 | 30 | #include "gdbthread.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 | |
e42c9534 AC |
104 | static void do_my_cleanups (struct cleanup **, struct cleanup *); |
105 | ||
a14ed312 | 106 | static void prompt_for_continue (void); |
c906108c | 107 | |
eb0d3137 | 108 | static void set_screen_size (void); |
a14ed312 | 109 | static void set_width (void); |
c906108c | 110 | |
75feb17d DJ |
111 | /* A flag indicating whether to timestamp debugging messages. */ |
112 | ||
113 | static int debug_timestamp = 0; | |
114 | ||
c906108c SS |
115 | /* Chain of cleanup actions established with make_cleanup, |
116 | to be executed if an error happens. */ | |
117 | ||
c5aa993b JM |
118 | static struct cleanup *cleanup_chain; /* cleaned up after a failed command */ |
119 | static struct cleanup *final_cleanup_chain; /* cleaned up when gdb exits */ | |
43ff13b4 | 120 | |
581e13c1 | 121 | /* Nonzero if we have job control. */ |
c906108c SS |
122 | |
123 | int job_control; | |
124 | ||
125 | /* Nonzero means a quit has been requested. */ | |
126 | ||
127 | int quit_flag; | |
128 | ||
129 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
130 | than waiting until QUIT is executed. Be careful in setting this; | |
131 | code which executes with immediate_quit set has to be very careful | |
132 | about being able to deal with being interrupted at any time. It is | |
133 | almost always better to use QUIT; the only exception I can think of | |
134 | is being able to quit out of a system call (using EINTR loses if | |
135 | the SIGINT happens between the previous QUIT and the system call). | |
136 | To immediately quit in the case in which a SIGINT happens between | |
137 | the previous QUIT and setting immediate_quit (desirable anytime we | |
138 | expect to block), call QUIT after setting immediate_quit. */ | |
139 | ||
140 | int immediate_quit; | |
141 | ||
c906108c SS |
142 | /* Nonzero means that strings with character values >0x7F should be printed |
143 | as octal escapes. Zero means just print the value (e.g. it's an | |
144 | international character, and the terminal or window can cope.) */ | |
145 | ||
146 | int sevenbit_strings = 0; | |
920d2a44 AC |
147 | static void |
148 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
149 | struct cmd_list_element *c, const char *value) | |
150 | { | |
3e43a32a MS |
151 | fprintf_filtered (file, _("Printing of 8-bit characters " |
152 | "in strings as \\nnn is %s.\n"), | |
920d2a44 AC |
153 | value); |
154 | } | |
c906108c SS |
155 | |
156 | /* String to be printed before error messages, if any. */ | |
157 | ||
158 | char *error_pre_print; | |
159 | ||
160 | /* String to be printed before quit messages, if any. */ | |
161 | ||
162 | char *quit_pre_print; | |
163 | ||
164 | /* String to be printed before warning messages, if any. */ | |
165 | ||
166 | char *warning_pre_print = "\nwarning: "; | |
167 | ||
168 | int pagination_enabled = 1; | |
920d2a44 AC |
169 | static void |
170 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
171 | struct cmd_list_element *c, const char *value) | |
172 | { | |
173 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
174 | } | |
175 | ||
c906108c | 176 | \f |
c5aa993b | 177 | |
c906108c SS |
178 | /* Add a new cleanup to the cleanup_chain, |
179 | and return the previous chain pointer | |
180 | to be passed later to do_cleanups or discard_cleanups. | |
181 | Args are FUNCTION to clean up with, and ARG to pass to it. */ | |
182 | ||
183 | struct cleanup * | |
e4005526 | 184 | make_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 185 | { |
c5aa993b | 186 | return make_my_cleanup (&cleanup_chain, function, arg); |
c906108c SS |
187 | } |
188 | ||
4f8d22e3 PA |
189 | struct cleanup * |
190 | make_cleanup_dtor (make_cleanup_ftype *function, void *arg, | |
191 | void (*dtor) (void *)) | |
192 | { | |
193 | return make_my_cleanup2 (&cleanup_chain, | |
194 | function, arg, dtor); | |
195 | } | |
196 | ||
c906108c | 197 | struct cleanup * |
e4005526 | 198 | make_final_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 199 | { |
c5aa993b | 200 | return make_my_cleanup (&final_cleanup_chain, function, arg); |
c906108c | 201 | } |
7a292a7a | 202 | |
7a292a7a | 203 | static void |
fba45db2 | 204 | do_freeargv (void *arg) |
7a292a7a | 205 | { |
c5aa993b | 206 | freeargv ((char **) arg); |
7a292a7a SS |
207 | } |
208 | ||
209 | struct cleanup * | |
fba45db2 | 210 | make_cleanup_freeargv (char **arg) |
7a292a7a SS |
211 | { |
212 | return make_my_cleanup (&cleanup_chain, do_freeargv, arg); | |
213 | } | |
214 | ||
5a56e9c5 DE |
215 | static void |
216 | do_dyn_string_delete (void *arg) | |
217 | { | |
218 | dyn_string_delete ((dyn_string_t) arg); | |
219 | } | |
220 | ||
221 | struct cleanup * | |
222 | make_cleanup_dyn_string_delete (dyn_string_t arg) | |
223 | { | |
224 | return make_my_cleanup (&cleanup_chain, do_dyn_string_delete, arg); | |
225 | } | |
226 | ||
5c65bbb6 AC |
227 | static void |
228 | do_bfd_close_cleanup (void *arg) | |
229 | { | |
230 | bfd_close (arg); | |
231 | } | |
232 | ||
233 | struct cleanup * | |
234 | make_cleanup_bfd_close (bfd *abfd) | |
235 | { | |
236 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
237 | } | |
238 | ||
f5ff8c83 AC |
239 | static void |
240 | do_close_cleanup (void *arg) | |
241 | { | |
f042532c | 242 | int *fd = arg; |
e0627e85 | 243 | |
f042532c | 244 | close (*fd); |
f5ff8c83 AC |
245 | } |
246 | ||
247 | struct cleanup * | |
248 | make_cleanup_close (int fd) | |
249 | { | |
f042532c | 250 | int *saved_fd = xmalloc (sizeof (fd)); |
e0627e85 | 251 | |
f042532c | 252 | *saved_fd = fd; |
a05016c0 | 253 | return make_cleanup_dtor (do_close_cleanup, saved_fd, xfree); |
f5ff8c83 AC |
254 | } |
255 | ||
7c8a8b04 TT |
256 | /* Helper function which does the work for make_cleanup_fclose. */ |
257 | ||
258 | static void | |
259 | do_fclose_cleanup (void *arg) | |
260 | { | |
c02866a0 | 261 | FILE *file = arg; |
e0627e85 | 262 | |
c02866a0 | 263 | fclose (file); |
7c8a8b04 TT |
264 | } |
265 | ||
266 | /* Return a new cleanup that closes FILE. */ | |
267 | ||
268 | struct cleanup * | |
269 | make_cleanup_fclose (FILE *file) | |
270 | { | |
271 | return make_cleanup (do_fclose_cleanup, file); | |
272 | } | |
273 | ||
16ad9370 TT |
274 | /* Helper function which does the work for make_cleanup_obstack_free. */ |
275 | ||
276 | static void | |
277 | do_obstack_free (void *arg) | |
278 | { | |
279 | struct obstack *ob = arg; | |
e0627e85 | 280 | |
16ad9370 TT |
281 | obstack_free (ob, NULL); |
282 | } | |
283 | ||
284 | /* Return a new cleanup that frees OBSTACK. */ | |
285 | ||
286 | struct cleanup * | |
287 | make_cleanup_obstack_free (struct obstack *obstack) | |
288 | { | |
289 | return make_cleanup (do_obstack_free, obstack); | |
290 | } | |
291 | ||
11cf8741 | 292 | static void |
d9fcf2fb | 293 | do_ui_file_delete (void *arg) |
11cf8741 | 294 | { |
d9fcf2fb | 295 | ui_file_delete (arg); |
11cf8741 JM |
296 | } |
297 | ||
298 | struct cleanup * | |
d9fcf2fb | 299 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 300 | { |
d9fcf2fb | 301 | return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg); |
11cf8741 JM |
302 | } |
303 | ||
8d4d924b JK |
304 | /* Helper function for make_cleanup_ui_out_redirect_pop. */ |
305 | ||
306 | static void | |
307 | do_ui_out_redirect_pop (void *arg) | |
308 | { | |
309 | struct ui_out *uiout = arg; | |
310 | ||
311 | if (ui_out_redirect (uiout, NULL) < 0) | |
312 | warning (_("Cannot restore redirection of the current output protocol")); | |
313 | } | |
314 | ||
315 | /* Return a new cleanup that pops the last redirection by ui_out_redirect | |
316 | with NULL parameter. */ | |
317 | ||
318 | struct cleanup * | |
319 | make_cleanup_ui_out_redirect_pop (struct ui_out *uiout) | |
320 | { | |
321 | return make_my_cleanup (&cleanup_chain, do_ui_out_redirect_pop, uiout); | |
322 | } | |
323 | ||
7b90c3f9 JB |
324 | static void |
325 | do_free_section_addr_info (void *arg) | |
326 | { | |
327 | free_section_addr_info (arg); | |
328 | } | |
329 | ||
330 | struct cleanup * | |
331 | make_cleanup_free_section_addr_info (struct section_addr_info *addrs) | |
332 | { | |
333 | return make_my_cleanup (&cleanup_chain, do_free_section_addr_info, addrs); | |
334 | } | |
335 | ||
0b080f59 VP |
336 | struct restore_integer_closure |
337 | { | |
338 | int *variable; | |
339 | int value; | |
340 | }; | |
341 | ||
342 | static void | |
343 | restore_integer (void *p) | |
344 | { | |
345 | struct restore_integer_closure *closure = p; | |
e0627e85 | 346 | |
0b080f59 VP |
347 | *(closure->variable) = closure->value; |
348 | } | |
7b90c3f9 | 349 | |
3e43a32a MS |
350 | /* Remember the current value of *VARIABLE and make it restored when |
351 | the cleanup is run. */ | |
5da1313b | 352 | |
c906108c | 353 | struct cleanup * |
0b080f59 VP |
354 | make_cleanup_restore_integer (int *variable) |
355 | { | |
356 | struct restore_integer_closure *c = | |
357 | xmalloc (sizeof (struct restore_integer_closure)); | |
e0627e85 | 358 | |
0b080f59 VP |
359 | c->variable = variable; |
360 | c->value = *variable; | |
361 | ||
362 | return make_my_cleanup2 (&cleanup_chain, restore_integer, (void *)c, | |
363 | xfree); | |
364 | } | |
365 | ||
3e43a32a MS |
366 | /* Remember the current value of *VARIABLE and make it restored when |
367 | the cleanup is run. */ | |
5da1313b JK |
368 | |
369 | struct cleanup * | |
370 | make_cleanup_restore_uinteger (unsigned int *variable) | |
371 | { | |
372 | return make_cleanup_restore_integer ((int *) variable); | |
373 | } | |
374 | ||
c0edd9ed JK |
375 | /* Helper for make_cleanup_unpush_target. */ |
376 | ||
377 | static void | |
378 | do_unpush_target (void *arg) | |
379 | { | |
380 | struct target_ops *ops = arg; | |
381 | ||
382 | unpush_target (ops); | |
383 | } | |
384 | ||
385 | /* Return a new cleanup that unpushes OPS. */ | |
386 | ||
387 | struct cleanup * | |
388 | make_cleanup_unpush_target (struct target_ops *ops) | |
389 | { | |
390 | return make_my_cleanup (&cleanup_chain, do_unpush_target, ops); | |
391 | } | |
392 | ||
8e3b41a9 JK |
393 | /* Helper for make_cleanup_htab_delete compile time checking the types. */ |
394 | ||
395 | static void | |
396 | do_htab_delete_cleanup (void *htab_voidp) | |
397 | { | |
398 | htab_t htab = htab_voidp; | |
399 | ||
400 | htab_delete (htab); | |
401 | } | |
402 | ||
403 | /* Return a new cleanup that deletes HTAB. */ | |
404 | ||
405 | struct cleanup * | |
406 | make_cleanup_htab_delete (htab_t htab) | |
407 | { | |
408 | return make_cleanup (do_htab_delete_cleanup, htab); | |
409 | } | |
410 | ||
5da1313b JK |
411 | struct restore_ui_file_closure |
412 | { | |
413 | struct ui_file **variable; | |
414 | struct ui_file *value; | |
415 | }; | |
416 | ||
417 | static void | |
418 | do_restore_ui_file (void *p) | |
419 | { | |
420 | struct restore_ui_file_closure *closure = p; | |
421 | ||
422 | *(closure->variable) = closure->value; | |
423 | } | |
424 | ||
425 | /* Remember the current value of *VARIABLE and make it restored when | |
426 | the cleanup is run. */ | |
427 | ||
428 | struct cleanup * | |
429 | make_cleanup_restore_ui_file (struct ui_file **variable) | |
430 | { | |
431 | struct restore_ui_file_closure *c = XNEW (struct restore_ui_file_closure); | |
432 | ||
433 | c->variable = variable; | |
434 | c->value = *variable; | |
435 | ||
436 | return make_cleanup_dtor (do_restore_ui_file, (void *) c, xfree); | |
437 | } | |
438 | ||
028d0ed5 TJB |
439 | /* Helper for make_cleanup_value_free_to_mark. */ |
440 | ||
441 | static void | |
442 | do_value_free_to_mark (void *value) | |
443 | { | |
444 | value_free_to_mark ((struct value *) value); | |
445 | } | |
446 | ||
447 | /* Free all values allocated since MARK was obtained by value_mark | |
448 | (except for those released) when the cleanup is run. */ | |
449 | ||
450 | struct cleanup * | |
451 | make_cleanup_value_free_to_mark (struct value *mark) | |
452 | { | |
453 | return make_my_cleanup (&cleanup_chain, do_value_free_to_mark, mark); | |
454 | } | |
455 | ||
72fc29ff TT |
456 | /* Helper for make_cleanup_value_free. */ |
457 | ||
458 | static void | |
459 | do_value_free (void *value) | |
460 | { | |
461 | value_free (value); | |
462 | } | |
463 | ||
464 | /* Free VALUE. */ | |
465 | ||
466 | struct cleanup * | |
467 | make_cleanup_value_free (struct value *value) | |
468 | { | |
469 | return make_my_cleanup (&cleanup_chain, do_value_free, value); | |
470 | } | |
471 | ||
cb08cc53 JK |
472 | /* Helper for make_cleanup_free_so. */ |
473 | ||
474 | static void | |
475 | do_free_so (void *arg) | |
476 | { | |
477 | struct so_list *so = arg; | |
478 | ||
479 | free_so (so); | |
480 | } | |
481 | ||
482 | /* Make cleanup handler calling free_so for SO. */ | |
483 | ||
484 | struct cleanup * | |
485 | make_cleanup_free_so (struct so_list *so) | |
486 | { | |
487 | return make_my_cleanup (&cleanup_chain, do_free_so, so); | |
488 | } | |
489 | ||
0b080f59 VP |
490 | struct cleanup * |
491 | make_my_cleanup2 (struct cleanup **pmy_chain, make_cleanup_ftype *function, | |
492 | void *arg, void (*free_arg) (void *)) | |
c906108c | 493 | { |
52f0bd74 | 494 | struct cleanup *new |
8731e58e | 495 | = (struct cleanup *) xmalloc (sizeof (struct cleanup)); |
52f0bd74 | 496 | struct cleanup *old_chain = *pmy_chain; |
c906108c SS |
497 | |
498 | new->next = *pmy_chain; | |
499 | new->function = function; | |
0b080f59 | 500 | new->free_arg = free_arg; |
c906108c SS |
501 | new->arg = arg; |
502 | *pmy_chain = new; | |
503 | ||
504 | return old_chain; | |
505 | } | |
506 | ||
0b080f59 VP |
507 | struct cleanup * |
508 | make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function, | |
509 | void *arg) | |
510 | { | |
511 | return make_my_cleanup2 (pmy_chain, function, arg, NULL); | |
512 | } | |
513 | ||
c906108c SS |
514 | /* Discard cleanups and do the actions they describe |
515 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
516 | ||
517 | void | |
aa1ee363 | 518 | do_cleanups (struct cleanup *old_chain) |
c906108c | 519 | { |
c5aa993b | 520 | do_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
521 | } |
522 | ||
523 | void | |
aa1ee363 | 524 | do_final_cleanups (struct cleanup *old_chain) |
c906108c | 525 | { |
c5aa993b | 526 | do_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
527 | } |
528 | ||
e42c9534 | 529 | static void |
aa1ee363 AC |
530 | do_my_cleanups (struct cleanup **pmy_chain, |
531 | struct cleanup *old_chain) | |
c906108c | 532 | { |
52f0bd74 | 533 | struct cleanup *ptr; |
e0627e85 | 534 | |
c906108c SS |
535 | while ((ptr = *pmy_chain) != old_chain) |
536 | { | |
5f2302ab | 537 | *pmy_chain = ptr->next; /* Do this first in case of recursion. */ |
c906108c | 538 | (*ptr->function) (ptr->arg); |
0b080f59 VP |
539 | if (ptr->free_arg) |
540 | (*ptr->free_arg) (ptr->arg); | |
b8c9b27d | 541 | xfree (ptr); |
c906108c SS |
542 | } |
543 | } | |
544 | ||
545 | /* Discard cleanups, not doing the actions they describe, | |
546 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
547 | ||
548 | void | |
aa1ee363 | 549 | discard_cleanups (struct cleanup *old_chain) |
c906108c | 550 | { |
c5aa993b | 551 | discard_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
552 | } |
553 | ||
554 | void | |
aa1ee363 | 555 | discard_final_cleanups (struct cleanup *old_chain) |
c906108c | 556 | { |
c5aa993b | 557 | discard_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
558 | } |
559 | ||
560 | void | |
aa1ee363 AC |
561 | discard_my_cleanups (struct cleanup **pmy_chain, |
562 | struct cleanup *old_chain) | |
c906108c | 563 | { |
52f0bd74 | 564 | struct cleanup *ptr; |
e0627e85 | 565 | |
c906108c SS |
566 | while ((ptr = *pmy_chain) != old_chain) |
567 | { | |
568 | *pmy_chain = ptr->next; | |
0b080f59 VP |
569 | if (ptr->free_arg) |
570 | (*ptr->free_arg) (ptr->arg); | |
b8c9b27d | 571 | xfree (ptr); |
c906108c SS |
572 | } |
573 | } | |
574 | ||
575 | /* Set the cleanup_chain to 0, and return the old cleanup chain. */ | |
576 | struct cleanup * | |
fba45db2 | 577 | save_cleanups (void) |
c906108c | 578 | { |
c5aa993b | 579 | return save_my_cleanups (&cleanup_chain); |
c906108c SS |
580 | } |
581 | ||
582 | struct cleanup * | |
fba45db2 | 583 | save_final_cleanups (void) |
c906108c | 584 | { |
c5aa993b | 585 | return save_my_cleanups (&final_cleanup_chain); |
c906108c SS |
586 | } |
587 | ||
588 | struct cleanup * | |
fba45db2 | 589 | save_my_cleanups (struct cleanup **pmy_chain) |
c906108c SS |
590 | { |
591 | struct cleanup *old_chain = *pmy_chain; | |
592 | ||
593 | *pmy_chain = 0; | |
594 | return old_chain; | |
595 | } | |
596 | ||
597 | /* Restore the cleanup chain from a previously saved chain. */ | |
598 | void | |
fba45db2 | 599 | restore_cleanups (struct cleanup *chain) |
c906108c | 600 | { |
c5aa993b | 601 | restore_my_cleanups (&cleanup_chain, chain); |
c906108c SS |
602 | } |
603 | ||
604 | void | |
fba45db2 | 605 | restore_final_cleanups (struct cleanup *chain) |
c906108c | 606 | { |
c5aa993b | 607 | restore_my_cleanups (&final_cleanup_chain, chain); |
c906108c SS |
608 | } |
609 | ||
610 | void | |
fba45db2 | 611 | restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain) |
c906108c SS |
612 | { |
613 | *pmy_chain = chain; | |
614 | } | |
615 | ||
616 | /* This function is useful for cleanups. | |
617 | Do | |
618 | ||
c5aa993b JM |
619 | foo = xmalloc (...); |
620 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
621 | |
622 | to arrange to free the object thus allocated. */ | |
623 | ||
624 | void | |
2f9429ae | 625 | free_current_contents (void *ptr) |
c906108c | 626 | { |
2f9429ae | 627 | void **location = ptr; |
e0627e85 | 628 | |
e2f9c474 | 629 | if (location == NULL) |
8e65ff28 | 630 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 631 | _("free_current_contents: NULL pointer")); |
2f9429ae | 632 | if (*location != NULL) |
e2f9c474 | 633 | { |
b8c9b27d | 634 | xfree (*location); |
e2f9c474 AC |
635 | *location = NULL; |
636 | } | |
c906108c SS |
637 | } |
638 | ||
639 | /* Provide a known function that does nothing, to use as a base for | |
7a9dd1b2 | 640 | a possibly long chain of cleanups. This is useful where we |
c906108c SS |
641 | use the cleanup chain for handling normal cleanups as well as dealing |
642 | with cleanups that need to be done as a result of a call to error(). | |
643 | In such cases, we may not be certain where the first cleanup is, unless | |
581e13c1 | 644 | we have a do-nothing one to always use as the base. */ |
c906108c | 645 | |
c906108c | 646 | void |
e4005526 | 647 | null_cleanup (void *arg) |
c906108c SS |
648 | { |
649 | } | |
650 | ||
0f3bb72e PH |
651 | /* If nonzero, display time usage both at startup and for each command. */ |
652 | ||
653 | static int display_time; | |
654 | ||
655 | /* If nonzero, display space usage both at startup and for each command. */ | |
656 | ||
657 | static int display_space; | |
658 | ||
659 | /* Records a run time and space usage to be used as a base for | |
660 | reporting elapsed time or change in space. In addition, | |
661 | the msg_type field indicates whether the saved time is from the | |
662 | beginning of GDB execution (0) or the beginning of an individual | |
663 | command execution (1). */ | |
664 | struct cmd_stats | |
665 | { | |
666 | int msg_type; | |
0a1c4d10 DE |
667 | long start_cpu_time; |
668 | struct timeval start_wall_time; | |
0f3bb72e PH |
669 | long start_space; |
670 | }; | |
671 | ||
672 | /* Set whether to display time statistics to NEW_VALUE (non-zero | |
673 | means true). */ | |
674 | void | |
675 | set_display_time (int new_value) | |
676 | { | |
677 | display_time = new_value; | |
678 | } | |
679 | ||
680 | /* Set whether to display space statistics to NEW_VALUE (non-zero | |
681 | means true). */ | |
682 | void | |
683 | set_display_space (int new_value) | |
684 | { | |
685 | display_space = new_value; | |
686 | } | |
687 | ||
688 | /* As indicated by display_time and display_space, report GDB's elapsed time | |
689 | and space usage from the base time and space provided in ARG, which | |
581e13c1 MS |
690 | must be a pointer to a struct cmd_stat. This function is intended |
691 | to be called as a cleanup. */ | |
0f3bb72e PH |
692 | static void |
693 | report_command_stats (void *arg) | |
694 | { | |
695 | struct cmd_stats *start_stats = (struct cmd_stats *) arg; | |
696 | int msg_type = start_stats->msg_type; | |
697 | ||
698 | if (display_time) | |
699 | { | |
0a1c4d10 DE |
700 | long cmd_time = get_run_time () - start_stats->start_cpu_time; |
701 | struct timeval now_wall_time, delta_wall_time; | |
702 | ||
703 | gettimeofday (&now_wall_time, NULL); | |
704 | timeval_sub (&delta_wall_time, | |
705 | &now_wall_time, &start_stats->start_wall_time); | |
0f3bb72e PH |
706 | |
707 | printf_unfiltered (msg_type == 0 | |
0a1c4d10 DE |
708 | ? _("Startup time: %ld.%06ld (cpu), %ld.%06ld (wall)\n") |
709 | : _("Command execution time: %ld.%06ld (cpu), %ld.%06ld (wall)\n"), | |
710 | cmd_time / 1000000, cmd_time % 1000000, | |
2b54dda2 DM |
711 | (long) delta_wall_time.tv_sec, |
712 | (long) delta_wall_time.tv_usec); | |
0f3bb72e PH |
713 | } |
714 | ||
715 | if (display_space) | |
716 | { | |
717 | #ifdef HAVE_SBRK | |
718 | char *lim = (char *) sbrk (0); | |
719 | ||
720 | long space_now = lim - lim_at_start; | |
721 | long space_diff = space_now - start_stats->start_space; | |
722 | ||
723 | printf_unfiltered (msg_type == 0 | |
5d901a73 TT |
724 | ? _("Space used: %ld (%s%ld during startup)\n") |
725 | : _("Space used: %ld (%s%ld for this command)\n"), | |
0f3bb72e | 726 | space_now, |
5d901a73 | 727 | (space_diff >= 0 ? "+" : ""), |
0f3bb72e PH |
728 | space_diff); |
729 | #endif | |
730 | } | |
731 | } | |
732 | ||
733 | /* Create a cleanup that reports time and space used since its | |
734 | creation. Precise messages depend on MSG_TYPE: | |
735 | 0: Initial time/space | |
736 | 1: Individual command time/space. */ | |
737 | struct cleanup * | |
738 | make_command_stats_cleanup (int msg_type) | |
739 | { | |
740 | struct cmd_stats *new_stat = XMALLOC (struct cmd_stats); | |
741 | ||
742 | #ifdef HAVE_SBRK | |
743 | char *lim = (char *) sbrk (0); | |
744 | new_stat->start_space = lim - lim_at_start; | |
745 | #endif | |
746 | ||
747 | new_stat->msg_type = msg_type; | |
0a1c4d10 DE |
748 | new_stat->start_cpu_time = get_run_time (); |
749 | gettimeofday (&new_stat->start_wall_time, NULL); | |
0f3bb72e PH |
750 | |
751 | return make_cleanup_dtor (report_command_stats, new_stat, xfree); | |
752 | } | |
c906108c | 753 | \f |
c5aa993b | 754 | |
8731e58e | 755 | |
f5a96129 AC |
756 | /* Print a warning message. The first argument STRING is the warning |
757 | message, used as an fprintf format string, the second is the | |
758 | va_list of arguments for that string. A warning is unfiltered (not | |
759 | paginated) so that the user does not need to page through each | |
760 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
761 | |
762 | void | |
f5a96129 | 763 | vwarning (const char *string, va_list args) |
c906108c | 764 | { |
9a4105ab AC |
765 | if (deprecated_warning_hook) |
766 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
767 | else |
768 | { | |
769 | target_terminal_ours (); | |
581e13c1 | 770 | wrap_here (""); /* Force out any buffered output. */ |
f5a96129 AC |
771 | gdb_flush (gdb_stdout); |
772 | if (warning_pre_print) | |
306d9ac5 | 773 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
774 | vfprintf_unfiltered (gdb_stderr, string, args); |
775 | fprintf_unfiltered (gdb_stderr, "\n"); | |
776 | va_end (args); | |
777 | } | |
c906108c SS |
778 | } |
779 | ||
780 | /* Print a warning message. | |
781 | The first argument STRING is the warning message, used as a fprintf string, | |
782 | and the remaining args are passed as arguments to it. | |
783 | The primary difference between warnings and errors is that a warning | |
784 | does not force the return to command level. */ | |
785 | ||
c906108c | 786 | void |
8731e58e | 787 | warning (const char *string, ...) |
c906108c SS |
788 | { |
789 | va_list args; | |
e0627e85 | 790 | |
c906108c | 791 | va_start (args, string); |
f5a96129 AC |
792 | vwarning (string, args); |
793 | va_end (args); | |
c906108c SS |
794 | } |
795 | ||
c906108c SS |
796 | /* Print an error message and return to command level. |
797 | The first argument STRING is the error message, used as a fprintf string, | |
798 | and the remaining args are passed as arguments to it. */ | |
799 | ||
c25c4a8b | 800 | void |
4ce44c66 JM |
801 | verror (const char *string, va_list args) |
802 | { | |
6b1b7650 | 803 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
804 | } |
805 | ||
c25c4a8b | 806 | void |
8731e58e | 807 | error (const char *string, ...) |
c906108c SS |
808 | { |
809 | va_list args; | |
e0627e85 | 810 | |
c906108c | 811 | va_start (args, string); |
6b1b7650 | 812 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 | 813 | va_end (args); |
c906108c SS |
814 | } |
815 | ||
d75e3c94 JJ |
816 | /* Print an error message and quit. |
817 | The first argument STRING is the error message, used as a fprintf string, | |
818 | and the remaining args are passed as arguments to it. */ | |
819 | ||
c25c4a8b | 820 | void |
d75e3c94 JJ |
821 | vfatal (const char *string, va_list args) |
822 | { | |
6b1b7650 | 823 | throw_vfatal (string, args); |
d75e3c94 JJ |
824 | } |
825 | ||
c25c4a8b | 826 | void |
d75e3c94 JJ |
827 | fatal (const char *string, ...) |
828 | { | |
829 | va_list args; | |
e0627e85 | 830 | |
d75e3c94 | 831 | va_start (args, string); |
6b1b7650 | 832 | throw_vfatal (string, args); |
d75e3c94 JJ |
833 | va_end (args); |
834 | } | |
835 | ||
c25c4a8b | 836 | void |
d75e3c94 | 837 | error_stream (struct ui_file *stream) |
2acceee2 | 838 | { |
759ef836 | 839 | char *message = ui_file_xstrdup (stream, NULL); |
e0627e85 | 840 | |
6b1b7650 | 841 | make_cleanup (xfree, message); |
8a3fe4f8 | 842 | error (("%s"), message); |
2acceee2 | 843 | } |
c906108c | 844 | |
7991dee7 JK |
845 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
846 | ||
847 | static void | |
848 | dump_core (void) | |
849 | { | |
850 | #ifdef HAVE_SETRLIMIT | |
851 | struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY }; | |
852 | ||
853 | setrlimit (RLIMIT_CORE, &rlim); | |
854 | #endif /* HAVE_SETRLIMIT */ | |
855 | ||
856 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
857 | } | |
858 | ||
3e43a32a MS |
859 | /* Check whether GDB will be able to dump core using the dump_core |
860 | function. */ | |
7991dee7 JK |
861 | |
862 | static int | |
863 | can_dump_core (const char *reason) | |
864 | { | |
865 | #ifdef HAVE_GETRLIMIT | |
866 | struct rlimit rlim; | |
867 | ||
868 | /* Be quiet and assume we can dump if an error is returned. */ | |
869 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
870 | return 1; | |
871 | ||
872 | if (rlim.rlim_max == 0) | |
873 | { | |
874 | fprintf_unfiltered (gdb_stderr, | |
3e43a32a MS |
875 | _("%s\nUnable to dump core, use `ulimit -c" |
876 | " unlimited' before executing GDB next time.\n"), | |
877 | reason); | |
7991dee7 JK |
878 | return 0; |
879 | } | |
880 | #endif /* HAVE_GETRLIMIT */ | |
881 | ||
882 | return 1; | |
883 | } | |
884 | ||
3c16cced PA |
885 | /* Allow the user to configure the debugger behavior with respect to |
886 | what to do when an internal problem is detected. */ | |
887 | ||
888 | const char internal_problem_ask[] = "ask"; | |
889 | const char internal_problem_yes[] = "yes"; | |
890 | const char internal_problem_no[] = "no"; | |
891 | static const char *internal_problem_modes[] = | |
892 | { | |
893 | internal_problem_ask, | |
894 | internal_problem_yes, | |
895 | internal_problem_no, | |
896 | NULL | |
897 | }; | |
3c16cced | 898 | |
581e13c1 | 899 | /* Print a message reporting an internal error/warning. Ask the user |
dec43320 AC |
900 | if they want to continue, dump core, or just exit. Return |
901 | something to indicate a quit. */ | |
c906108c | 902 | |
dec43320 | 903 | struct internal_problem |
c906108c | 904 | { |
dec43320 | 905 | const char *name; |
3c16cced PA |
906 | const char *should_quit; |
907 | const char *should_dump_core; | |
dec43320 AC |
908 | }; |
909 | ||
910 | /* Report a problem, internal to GDB, to the user. Once the problem | |
911 | has been reported, and assuming GDB didn't quit, the caller can | |
912 | either allow execution to resume or throw an error. */ | |
913 | ||
a0b31db1 | 914 | static void ATTRIBUTE_PRINTF (4, 0) |
dec43320 | 915 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 916 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 917 | { |
dec43320 | 918 | static int dejavu; |
375fc983 | 919 | int quit_p; |
7be570e7 | 920 | int dump_core_p; |
714b1282 | 921 | char *reason; |
c906108c | 922 | |
dec43320 | 923 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
924 | { |
925 | static char msg[] = "Recursive internal problem.\n"; | |
5d502164 | 926 | |
714b1282 AC |
927 | switch (dejavu) |
928 | { | |
929 | case 0: | |
930 | dejavu = 1; | |
931 | break; | |
932 | case 1: | |
933 | dejavu = 2; | |
934 | fputs_unfiltered (msg, gdb_stderr); | |
7991dee7 | 935 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
936 | default: |
937 | dejavu = 3; | |
bf1d7d9c JB |
938 | /* Newer GLIBC versions put the warn_unused_result attribute |
939 | on write, but this is one of those rare cases where | |
940 | ignoring the return value is correct. Casting to (void) | |
941 | does not fix this problem. This is the solution suggested | |
942 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
943 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
7991dee7 | 944 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
945 | exit (1); |
946 | } | |
947 | } | |
c906108c | 948 | |
dec43320 | 949 | /* Try to get the message out and at the start of a new line. */ |
4261bedc | 950 | target_terminal_ours (); |
dec43320 AC |
951 | begin_line (); |
952 | ||
714b1282 AC |
953 | /* Create a string containing the full error/warning message. Need |
954 | to call query with this full string, as otherwize the reason | |
955 | (error/warning) and question become separated. Format using a | |
956 | style similar to a compiler error message. Include extra detail | |
957 | so that the user knows that they are living on the edge. */ | |
958 | { | |
959 | char *msg; | |
5d502164 | 960 | |
e623b504 | 961 | msg = xstrvprintf (fmt, ap); |
3e43a32a MS |
962 | reason = xstrprintf ("%s:%d: %s: %s\n" |
963 | "A problem internal to GDB has been detected,\n" | |
964 | "further debugging may prove unreliable.", | |
965 | file, line, problem->name, msg); | |
714b1282 AC |
966 | xfree (msg); |
967 | make_cleanup (xfree, reason); | |
968 | } | |
7be570e7 | 969 | |
3c16cced | 970 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 971 | { |
dec43320 | 972 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
973 | this lessens the likelihood of GDB going into an infinite |
974 | loop. */ | |
26bb68be PP |
975 | if (caution == 0) |
976 | { | |
977 | /* Emit the message and quit. */ | |
978 | fputs_unfiltered (reason, gdb_stderr); | |
979 | fputs_unfiltered ("\n", gdb_stderr); | |
980 | quit_p = 1; | |
981 | } | |
982 | else | |
983 | quit_p = query (_("%s\nQuit this debugging session? "), reason); | |
dec43320 | 984 | } |
3c16cced PA |
985 | else if (problem->should_quit == internal_problem_yes) |
986 | quit_p = 1; | |
987 | else if (problem->should_quit == internal_problem_no) | |
988 | quit_p = 0; | |
989 | else | |
990 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 991 | |
3c16cced | 992 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 993 | { |
7991dee7 JK |
994 | if (!can_dump_core (reason)) |
995 | dump_core_p = 0; | |
996 | else | |
997 | { | |
998 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
999 | `dropping' so that it is easier to see that something went | |
1000 | wrong in GDB. */ | |
1001 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason); | |
1002 | } | |
dec43320 | 1003 | } |
3c16cced | 1004 | else if (problem->should_dump_core == internal_problem_yes) |
7991dee7 | 1005 | dump_core_p = can_dump_core (reason); |
3c16cced PA |
1006 | else if (problem->should_dump_core == internal_problem_no) |
1007 | dump_core_p = 0; | |
1008 | else | |
1009 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 1010 | |
375fc983 | 1011 | if (quit_p) |
7be570e7 JM |
1012 | { |
1013 | if (dump_core_p) | |
7991dee7 | 1014 | dump_core (); |
375fc983 AC |
1015 | else |
1016 | exit (1); | |
7be570e7 JM |
1017 | } |
1018 | else | |
1019 | { | |
1020 | if (dump_core_p) | |
375fc983 | 1021 | { |
9b265ec2 | 1022 | #ifdef HAVE_WORKING_FORK |
375fc983 | 1023 | if (fork () == 0) |
7991dee7 | 1024 | dump_core (); |
9b265ec2 | 1025 | #endif |
375fc983 | 1026 | } |
7be570e7 | 1027 | } |
96baa820 JM |
1028 | |
1029 | dejavu = 0; | |
dec43320 AC |
1030 | } |
1031 | ||
1032 | static struct internal_problem internal_error_problem = { | |
3c16cced | 1033 | "internal-error", internal_problem_ask, internal_problem_ask |
dec43320 AC |
1034 | }; |
1035 | ||
c25c4a8b | 1036 | void |
8731e58e | 1037 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
1038 | { |
1039 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
315a522e | 1040 | deprecated_throw_reason (RETURN_ERROR); |
c906108c SS |
1041 | } |
1042 | ||
c25c4a8b | 1043 | void |
8e65ff28 | 1044 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
1045 | { |
1046 | va_list ap; | |
e0627e85 | 1047 | |
4ce44c66 | 1048 | va_start (ap, string); |
8e65ff28 | 1049 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
1050 | va_end (ap); |
1051 | } | |
1052 | ||
dec43320 | 1053 | static struct internal_problem internal_warning_problem = { |
3c16cced | 1054 | "internal-warning", internal_problem_ask, internal_problem_ask |
dec43320 AC |
1055 | }; |
1056 | ||
1057 | void | |
8731e58e | 1058 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
1059 | { |
1060 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
1061 | } | |
1062 | ||
1063 | void | |
1064 | internal_warning (const char *file, int line, const char *string, ...) | |
1065 | { | |
1066 | va_list ap; | |
e0627e85 | 1067 | |
dec43320 AC |
1068 | va_start (ap, string); |
1069 | internal_vwarning (file, line, string, ap); | |
1070 | va_end (ap); | |
1071 | } | |
1072 | ||
3c16cced PA |
1073 | /* Dummy functions to keep add_prefix_cmd happy. */ |
1074 | ||
1075 | static void | |
1076 | set_internal_problem_cmd (char *args, int from_tty) | |
1077 | { | |
1078 | } | |
1079 | ||
1080 | static void | |
1081 | show_internal_problem_cmd (char *args, int from_tty) | |
1082 | { | |
1083 | } | |
1084 | ||
1085 | /* When GDB reports an internal problem (error or warning) it gives | |
1086 | the user the opportunity to quit GDB and/or create a core file of | |
1087 | the current debug session. This function registers a few commands | |
1088 | that make it possible to specify that GDB should always or never | |
1089 | quit or create a core file, without asking. The commands look | |
1090 | like: | |
1091 | ||
1092 | maint set PROBLEM-NAME quit ask|yes|no | |
1093 | maint show PROBLEM-NAME quit | |
1094 | maint set PROBLEM-NAME corefile ask|yes|no | |
1095 | maint show PROBLEM-NAME corefile | |
1096 | ||
1097 | Where PROBLEM-NAME is currently "internal-error" or | |
1098 | "internal-warning". */ | |
1099 | ||
1100 | static void | |
1101 | add_internal_problem_command (struct internal_problem *problem) | |
1102 | { | |
1103 | struct cmd_list_element **set_cmd_list; | |
1104 | struct cmd_list_element **show_cmd_list; | |
1105 | char *set_doc; | |
1106 | char *show_doc; | |
1107 | ||
1108 | set_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
1109 | show_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
1110 | *set_cmd_list = NULL; | |
1111 | *show_cmd_list = NULL; | |
1112 | ||
1113 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
1114 | problem->name); | |
1115 | ||
1116 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
1117 | problem->name); | |
1118 | ||
1119 | add_prefix_cmd ((char*) problem->name, | |
1120 | class_maintenance, set_internal_problem_cmd, set_doc, | |
1121 | set_cmd_list, | |
c4f7c687 MK |
1122 | concat ("maintenance set ", problem->name, " ", |
1123 | (char *) NULL), | |
3c16cced PA |
1124 | 0/*allow-unknown*/, &maintenance_set_cmdlist); |
1125 | ||
1126 | add_prefix_cmd ((char*) problem->name, | |
1127 | class_maintenance, show_internal_problem_cmd, show_doc, | |
1128 | show_cmd_list, | |
c4f7c687 MK |
1129 | concat ("maintenance show ", problem->name, " ", |
1130 | (char *) NULL), | |
3c16cced PA |
1131 | 0/*allow-unknown*/, &maintenance_show_cmdlist); |
1132 | ||
3e43a32a MS |
1133 | set_doc = xstrprintf (_("Set whether GDB should quit " |
1134 | "when an %s is detected"), | |
3c16cced | 1135 | problem->name); |
3e43a32a MS |
1136 | show_doc = xstrprintf (_("Show whether GDB will quit " |
1137 | "when an %s is detected"), | |
3c16cced PA |
1138 | problem->name); |
1139 | add_setshow_enum_cmd ("quit", class_maintenance, | |
1140 | internal_problem_modes, | |
1141 | &problem->should_quit, | |
1142 | set_doc, | |
1143 | show_doc, | |
1144 | NULL, /* help_doc */ | |
1145 | NULL, /* setfunc */ | |
1146 | NULL, /* showfunc */ | |
1147 | set_cmd_list, | |
1148 | show_cmd_list); | |
1149 | ||
1eefb858 TT |
1150 | xfree (set_doc); |
1151 | xfree (show_doc); | |
1152 | ||
3e43a32a MS |
1153 | set_doc = xstrprintf (_("Set whether GDB should create a core " |
1154 | "file of GDB when %s is detected"), | |
3c16cced | 1155 | problem->name); |
3e43a32a MS |
1156 | show_doc = xstrprintf (_("Show whether GDB will create a core " |
1157 | "file of GDB when %s is detected"), | |
3c16cced PA |
1158 | problem->name); |
1159 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
1160 | internal_problem_modes, | |
1161 | &problem->should_dump_core, | |
1162 | set_doc, | |
1163 | show_doc, | |
1164 | NULL, /* help_doc */ | |
1165 | NULL, /* setfunc */ | |
1166 | NULL, /* showfunc */ | |
1167 | set_cmd_list, | |
1168 | show_cmd_list); | |
1eefb858 TT |
1169 | |
1170 | xfree (set_doc); | |
1171 | xfree (show_doc); | |
3c16cced PA |
1172 | } |
1173 | ||
c906108c SS |
1174 | /* Print the system error message for errno, and also mention STRING |
1175 | as the file name for which the error was encountered. | |
1176 | Then return to command level. */ | |
1177 | ||
c25c4a8b | 1178 | void |
6972bc8b | 1179 | perror_with_name (const char *string) |
c906108c SS |
1180 | { |
1181 | char *err; | |
1182 | char *combined; | |
1183 | ||
1184 | err = safe_strerror (errno); | |
1185 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1186 | strcpy (combined, string); | |
1187 | strcat (combined, ": "); | |
1188 | strcat (combined, err); | |
1189 | ||
1190 | /* I understand setting these is a matter of taste. Still, some people | |
1191 | may clear errno but not know about bfd_error. Doing this here is not | |
581e13c1 | 1192 | unreasonable. */ |
c906108c SS |
1193 | bfd_set_error (bfd_error_no_error); |
1194 | errno = 0; | |
1195 | ||
8a3fe4f8 | 1196 | error (_("%s."), combined); |
c906108c SS |
1197 | } |
1198 | ||
1199 | /* Print the system error message for ERRCODE, and also mention STRING | |
1200 | as the file name for which the error was encountered. */ | |
1201 | ||
1202 | void | |
6972bc8b | 1203 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
1204 | { |
1205 | char *err; | |
1206 | char *combined; | |
1207 | ||
1208 | err = safe_strerror (errcode); | |
1209 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1210 | strcpy (combined, string); | |
1211 | strcat (combined, ": "); | |
1212 | strcat (combined, err); | |
1213 | ||
1214 | /* We want anything which was printed on stdout to come out first, before | |
1215 | this message. */ | |
1216 | gdb_flush (gdb_stdout); | |
1217 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
1218 | } | |
1219 | ||
1220 | /* Control C eventually causes this to be called, at a convenient time. */ | |
1221 | ||
1222 | void | |
fba45db2 | 1223 | quit (void) |
c906108c | 1224 | { |
7be570e7 JM |
1225 | #ifdef __MSDOS__ |
1226 | /* No steenking SIGINT will ever be coming our way when the | |
1227 | program is resumed. Don't lie. */ | |
e06e2353 | 1228 | fatal ("Quit"); |
7be570e7 | 1229 | #else |
c906108c | 1230 | if (job_control |
8731e58e AC |
1231 | /* If there is no terminal switching for this target, then we can't |
1232 | possibly get screwed by the lack of job control. */ | |
c906108c | 1233 | || current_target.to_terminal_ours == NULL) |
e06e2353 | 1234 | fatal ("Quit"); |
c906108c | 1235 | else |
e06e2353 | 1236 | fatal ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 1237 | #endif |
c906108c SS |
1238 | } |
1239 | ||
c906108c | 1240 | \f |
c906108c | 1241 | /* Called when a memory allocation fails, with the number of bytes of |
581e13c1 | 1242 | memory requested in SIZE. */ |
c906108c | 1243 | |
c25c4a8b | 1244 | void |
d26e3629 | 1245 | malloc_failure (long size) |
c906108c SS |
1246 | { |
1247 | if (size > 0) | |
1248 | { | |
8e65ff28 | 1249 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 1250 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 1251 | size); |
c906108c SS |
1252 | } |
1253 | else | |
1254 | { | |
e2e0b3e5 | 1255 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
1256 | } |
1257 | } | |
1258 | ||
c906108c SS |
1259 | /* My replacement for the read system call. |
1260 | Used like `read' but keeps going if `read' returns too soon. */ | |
1261 | ||
1262 | int | |
fba45db2 | 1263 | myread (int desc, char *addr, int len) |
c906108c | 1264 | { |
52f0bd74 | 1265 | int val; |
c906108c SS |
1266 | int orglen = len; |
1267 | ||
1268 | while (len > 0) | |
1269 | { | |
1270 | val = read (desc, addr, len); | |
1271 | if (val < 0) | |
1272 | return val; | |
1273 | if (val == 0) | |
1274 | return orglen - len; | |
1275 | len -= val; | |
1276 | addr += val; | |
1277 | } | |
1278 | return orglen; | |
1279 | } | |
d26e3629 | 1280 | |
c906108c SS |
1281 | /* Make a copy of the string at PTR with SIZE characters |
1282 | (and add a null character at the end in the copy). | |
1283 | Uses malloc to get the space. Returns the address of the copy. */ | |
1284 | ||
1285 | char * | |
5565b556 | 1286 | savestring (const char *ptr, size_t size) |
c906108c | 1287 | { |
52f0bd74 | 1288 | char *p = (char *) xmalloc (size + 1); |
e0627e85 | 1289 | |
c906108c SS |
1290 | memcpy (p, ptr, size); |
1291 | p[size] = 0; | |
1292 | return p; | |
1293 | } | |
1294 | ||
c906108c | 1295 | void |
aa1ee363 | 1296 | print_spaces (int n, struct ui_file *file) |
c906108c | 1297 | { |
392a587b | 1298 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1299 | } |
1300 | ||
1301 | /* Print a host address. */ | |
1302 | ||
1303 | void | |
ac16bf07 | 1304 | gdb_print_host_address (const void *addr, struct ui_file *stream) |
c906108c | 1305 | { |
ea8992ce | 1306 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 1307 | } |
c906108c | 1308 | \f |
c5aa993b | 1309 | |
dc92e161 TT |
1310 | /* A cleanup function that calls regfree. */ |
1311 | ||
1312 | static void | |
1313 | do_regfree_cleanup (void *r) | |
1314 | { | |
1315 | regfree (r); | |
1316 | } | |
1317 | ||
1318 | /* Create a new cleanup that frees the compiled regular expression R. */ | |
1319 | ||
1320 | struct cleanup * | |
1321 | make_regfree_cleanup (regex_t *r) | |
1322 | { | |
1323 | return make_cleanup (do_regfree_cleanup, r); | |
1324 | } | |
1325 | ||
1326 | /* Return an xmalloc'd error message resulting from a regular | |
1327 | expression compilation failure. */ | |
1328 | ||
1329 | char * | |
1330 | get_regcomp_error (int code, regex_t *rx) | |
1331 | { | |
1332 | size_t length = regerror (code, rx, NULL, 0); | |
1333 | char *result = xmalloc (length); | |
1334 | ||
1335 | regerror (code, rx, result, length); | |
1336 | return result; | |
1337 | } | |
1338 | ||
1339 | \f | |
1340 | ||
981c7f5a | 1341 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 1342 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
1343 | answer is yes, or default the answer to the specified default |
1344 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
1345 | default answer, or '\0' for no default. | |
cbdeadca JJ |
1346 | CTLSTR is the control string and should end in "? ". It should |
1347 | not say how to answer, because we do that. | |
1348 | ARGS are the arguments passed along with the CTLSTR argument to | |
1349 | printf. */ | |
1350 | ||
a0b31db1 | 1351 | static int ATTRIBUTE_PRINTF (1, 0) |
cbdeadca JJ |
1352 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
1353 | { | |
1354 | int answer; | |
1355 | int ans2; | |
1356 | int retval; | |
1357 | int def_value; | |
1358 | char def_answer, not_def_answer; | |
981c7f5a | 1359 | char *y_string, *n_string, *question; |
cbdeadca JJ |
1360 | |
1361 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
1362 | if (defchar == '\0') |
1363 | { | |
1364 | def_value = 1; | |
1365 | def_answer = 'Y'; | |
1366 | not_def_answer = 'N'; | |
1367 | y_string = "y"; | |
1368 | n_string = "n"; | |
1369 | } | |
1370 | else if (defchar == 'y') | |
cbdeadca JJ |
1371 | { |
1372 | def_value = 1; | |
1373 | def_answer = 'Y'; | |
1374 | not_def_answer = 'N'; | |
1375 | y_string = "[y]"; | |
1376 | n_string = "n"; | |
1377 | } | |
1378 | else | |
1379 | { | |
1380 | def_value = 0; | |
1381 | def_answer = 'N'; | |
1382 | not_def_answer = 'Y'; | |
1383 | y_string = "y"; | |
1384 | n_string = "[n]"; | |
1385 | } | |
1386 | ||
981c7f5a | 1387 | /* Automatically answer the default value if the user did not want |
a502cf95 NR |
1388 | prompts or the command was issued with the server prefix. */ |
1389 | if (! caution || server_command) | |
981c7f5a DJ |
1390 | return def_value; |
1391 | ||
1392 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 1393 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
1394 | way, important error messages don't get lost when talking to GDB |
1395 | over a pipe. */ | |
c63a1f86 | 1396 | if (! input_from_terminal_p ()) |
981c7f5a DJ |
1397 | { |
1398 | wrap_here (""); | |
1399 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1400 | ||
3e43a32a MS |
1401 | printf_filtered (_("(%s or %s) [answered %c; " |
1402 | "input not from terminal]\n"), | |
981c7f5a DJ |
1403 | y_string, n_string, def_answer); |
1404 | gdb_flush (gdb_stdout); | |
1405 | ||
1406 | return def_value; | |
1407 | } | |
1408 | ||
9a4105ab | 1409 | if (deprecated_query_hook) |
cbdeadca | 1410 | { |
9a4105ab | 1411 | return deprecated_query_hook (ctlstr, args); |
cbdeadca JJ |
1412 | } |
1413 | ||
981c7f5a DJ |
1414 | /* Format the question outside of the loop, to avoid reusing args. */ |
1415 | question = xstrvprintf (ctlstr, args); | |
1416 | ||
cbdeadca JJ |
1417 | while (1) |
1418 | { | |
581e13c1 | 1419 | wrap_here (""); /* Flush any buffered output. */ |
cbdeadca JJ |
1420 | gdb_flush (gdb_stdout); |
1421 | ||
1422 | if (annotation_level > 1) | |
a3f17187 | 1423 | printf_filtered (("\n\032\032pre-query\n")); |
cbdeadca | 1424 | |
981c7f5a | 1425 | fputs_filtered (question, gdb_stdout); |
a3f17187 | 1426 | printf_filtered (_("(%s or %s) "), y_string, n_string); |
cbdeadca JJ |
1427 | |
1428 | if (annotation_level > 1) | |
a3f17187 | 1429 | printf_filtered (("\n\032\032query\n")); |
cbdeadca JJ |
1430 | |
1431 | wrap_here (""); | |
1432 | gdb_flush (gdb_stdout); | |
1433 | ||
1434 | answer = fgetc (stdin); | |
8626589c JB |
1435 | |
1436 | /* We expect fgetc to block until a character is read. But | |
1437 | this may not be the case if the terminal was opened with | |
1438 | the NONBLOCK flag. In that case, if there is nothing to | |
1439 | read on stdin, fgetc returns EOF, but also sets the error | |
1440 | condition flag on stdin and errno to EAGAIN. With a true | |
1441 | EOF, stdin's error condition flag is not set. | |
1442 | ||
1443 | A situation where this behavior was observed is a pseudo | |
1444 | terminal on AIX. */ | |
1445 | while (answer == EOF && ferror (stdin) && errno == EAGAIN) | |
1446 | { | |
1447 | /* Not a real EOF. Wait a little while and try again until | |
1448 | we read something. */ | |
1449 | clearerr (stdin); | |
1450 | gdb_usleep (10000); | |
1451 | answer = fgetc (stdin); | |
1452 | } | |
1453 | ||
cbdeadca JJ |
1454 | clearerr (stdin); /* in case of C-d */ |
1455 | if (answer == EOF) /* C-d */ | |
1456 | { | |
fa3fd85b | 1457 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
1458 | retval = def_value; |
1459 | break; | |
1460 | } | |
581e13c1 | 1461 | /* Eat rest of input line, to EOF or newline. */ |
cbdeadca JJ |
1462 | if (answer != '\n') |
1463 | do | |
1464 | { | |
1465 | ans2 = fgetc (stdin); | |
1466 | clearerr (stdin); | |
1467 | } | |
1468 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); | |
1469 | ||
1470 | if (answer >= 'a') | |
1471 | answer -= 040; | |
1472 | /* Check answer. For the non-default, the user must specify | |
1473 | the non-default explicitly. */ | |
1474 | if (answer == not_def_answer) | |
1475 | { | |
1476 | retval = !def_value; | |
1477 | break; | |
1478 | } | |
981c7f5a DJ |
1479 | /* Otherwise, if a default was specified, the user may either |
1480 | specify the required input or have it default by entering | |
1481 | nothing. */ | |
1482 | if (answer == def_answer | |
1483 | || (defchar != '\0' && | |
1484 | (answer == '\n' || answer == '\r' || answer == EOF))) | |
cbdeadca JJ |
1485 | { |
1486 | retval = def_value; | |
1487 | break; | |
1488 | } | |
1489 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 1490 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
1491 | y_string, n_string); |
1492 | } | |
1493 | ||
981c7f5a | 1494 | xfree (question); |
cbdeadca | 1495 | if (annotation_level > 1) |
a3f17187 | 1496 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
1497 | return retval; |
1498 | } | |
1499 | \f | |
1500 | ||
1501 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1502 | answer is yes, or 0 if answer is defaulted. | |
1503 | Takes three args which are given to printf to print the question. | |
1504 | The first, a control string, should end in "? ". | |
1505 | It should not say how to answer, because we do that. */ | |
1506 | ||
1507 | int | |
1508 | nquery (const char *ctlstr, ...) | |
1509 | { | |
1510 | va_list args; | |
899500d6 | 1511 | int ret; |
cbdeadca JJ |
1512 | |
1513 | va_start (args, ctlstr); | |
899500d6 | 1514 | ret = defaulted_query (ctlstr, 'n', args); |
cbdeadca | 1515 | va_end (args); |
899500d6 | 1516 | return ret; |
cbdeadca JJ |
1517 | } |
1518 | ||
1519 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1520 | answer is yes, or 1 if answer is defaulted. | |
1521 | Takes three args which are given to printf to print the question. | |
1522 | The first, a control string, should end in "? ". | |
1523 | It should not say how to answer, because we do that. */ | |
1524 | ||
1525 | int | |
1526 | yquery (const char *ctlstr, ...) | |
1527 | { | |
1528 | va_list args; | |
899500d6 | 1529 | int ret; |
cbdeadca JJ |
1530 | |
1531 | va_start (args, ctlstr); | |
899500d6 | 1532 | ret = defaulted_query (ctlstr, 'y', args); |
cbdeadca | 1533 | va_end (args); |
899500d6 | 1534 | return ret; |
cbdeadca JJ |
1535 | } |
1536 | ||
981c7f5a DJ |
1537 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
1538 | Takes three args which are given to printf to print the question. | |
1539 | The first, a control string, should end in "? ". | |
1540 | It should not say how to answer, because we do that. */ | |
1541 | ||
1542 | int | |
1543 | query (const char *ctlstr, ...) | |
1544 | { | |
1545 | va_list args; | |
899500d6 | 1546 | int ret; |
981c7f5a DJ |
1547 | |
1548 | va_start (args, ctlstr); | |
899500d6 | 1549 | ret = defaulted_query (ctlstr, '\0', args); |
981c7f5a | 1550 | va_end (args); |
899500d6 | 1551 | return ret; |
981c7f5a DJ |
1552 | } |
1553 | ||
6c7a06a3 TT |
1554 | /* A helper for parse_escape that converts a host character to a |
1555 | target character. C is the host character. If conversion is | |
1556 | possible, then the target character is stored in *TARGET_C and the | |
1557 | function returns 1. Otherwise, the function returns 0. */ | |
1558 | ||
1559 | static int | |
f870a310 | 1560 | host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c) |
234b45d4 | 1561 | { |
6c7a06a3 TT |
1562 | struct obstack host_data; |
1563 | char the_char = c; | |
1564 | struct cleanup *cleanups; | |
1565 | int result = 0; | |
234b45d4 | 1566 | |
6c7a06a3 TT |
1567 | obstack_init (&host_data); |
1568 | cleanups = make_cleanup_obstack_free (&host_data); | |
234b45d4 | 1569 | |
f870a310 | 1570 | convert_between_encodings (target_charset (gdbarch), host_charset (), |
6c7a06a3 TT |
1571 | &the_char, 1, 1, &host_data, translit_none); |
1572 | ||
1573 | if (obstack_object_size (&host_data) == 1) | |
1574 | { | |
1575 | result = 1; | |
1576 | *target_c = *(char *) obstack_base (&host_data); | |
1577 | } | |
1578 | ||
1579 | do_cleanups (cleanups); | |
1580 | return result; | |
234b45d4 KB |
1581 | } |
1582 | ||
c906108c SS |
1583 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1584 | containing a pointer to the string to parse. That pointer | |
1585 | should point to the character after the \. That pointer | |
1586 | is updated past the characters we use. The value of the | |
1587 | escape sequence is returned. | |
1588 | ||
1589 | A negative value means the sequence \ newline was seen, | |
1590 | which is supposed to be equivalent to nothing at all. | |
1591 | ||
1592 | If \ is followed by a null character, we return a negative | |
1593 | value and leave the string pointer pointing at the null character. | |
1594 | ||
1595 | If \ is followed by 000, we return 0 and leave the string pointer | |
1596 | after the zeros. A value of 0 does not mean end of string. */ | |
1597 | ||
1598 | int | |
f870a310 | 1599 | parse_escape (struct gdbarch *gdbarch, char **string_ptr) |
c906108c | 1600 | { |
581e13c1 | 1601 | int target_char = -2; /* Initialize to avoid GCC warnings. */ |
52f0bd74 | 1602 | int c = *(*string_ptr)++; |
e0627e85 | 1603 | |
6c7a06a3 TT |
1604 | switch (c) |
1605 | { | |
8731e58e AC |
1606 | case '\n': |
1607 | return -2; | |
1608 | case 0: | |
1609 | (*string_ptr)--; | |
1610 | return 0; | |
8731e58e AC |
1611 | |
1612 | case '0': | |
1613 | case '1': | |
1614 | case '2': | |
1615 | case '3': | |
1616 | case '4': | |
1617 | case '5': | |
1618 | case '6': | |
1619 | case '7': | |
1620 | { | |
6c7a06a3 | 1621 | int i = host_hex_value (c); |
aa1ee363 | 1622 | int count = 0; |
8731e58e AC |
1623 | while (++count < 3) |
1624 | { | |
5cb316ef | 1625 | c = (**string_ptr); |
6c7a06a3 | 1626 | if (isdigit (c) && c != '8' && c != '9') |
8731e58e | 1627 | { |
5cb316ef | 1628 | (*string_ptr)++; |
8731e58e | 1629 | i *= 8; |
6c7a06a3 | 1630 | i += host_hex_value (c); |
8731e58e AC |
1631 | } |
1632 | else | |
1633 | { | |
8731e58e AC |
1634 | break; |
1635 | } | |
1636 | } | |
1637 | return i; | |
1638 | } | |
6c7a06a3 TT |
1639 | |
1640 | case 'a': | |
1641 | c = '\a'; | |
1642 | break; | |
1643 | case 'b': | |
1644 | c = '\b'; | |
1645 | break; | |
1646 | case 'f': | |
1647 | c = '\f'; | |
1648 | break; | |
1649 | case 'n': | |
1650 | c = '\n'; | |
1651 | break; | |
1652 | case 'r': | |
1653 | c = '\r'; | |
1654 | break; | |
1655 | case 't': | |
1656 | c = '\t'; | |
1657 | break; | |
1658 | case 'v': | |
1659 | c = '\v'; | |
1660 | break; | |
1661 | ||
1662 | default: | |
1663 | break; | |
1664 | } | |
1665 | ||
f870a310 | 1666 | if (!host_char_to_target (gdbarch, c, &target_char)) |
3351ea09 JB |
1667 | error (_("The escape sequence `\\%c' is equivalent to plain `%c'," |
1668 | " which has no equivalent\nin the `%s' character set."), | |
905b671b | 1669 | c, c, target_charset (gdbarch)); |
6c7a06a3 | 1670 | return target_char; |
c906108c SS |
1671 | } |
1672 | \f | |
1673 | /* Print the character C on STREAM as part of the contents of a literal | |
1674 | string whose delimiter is QUOTER. Note that this routine should only | |
1675 | be call for printing things which are independent of the language | |
581e13c1 | 1676 | of the program being debugged. */ |
c906108c | 1677 | |
43e526b9 | 1678 | static void |
74f832da | 1679 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
bee0189a DJ |
1680 | void (*do_fprintf) (struct ui_file *, const char *, ...) |
1681 | ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter) | |
c906108c | 1682 | { |
c906108c SS |
1683 | c &= 0xFF; /* Avoid sign bit follies */ |
1684 | ||
c5aa993b JM |
1685 | if (c < 0x20 || /* Low control chars */ |
1686 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1687 | (sevenbit_strings && c >= 0x80)) | |
1688 | { /* high order bit set */ | |
1689 | switch (c) | |
1690 | { | |
1691 | case '\n': | |
43e526b9 | 1692 | do_fputs ("\\n", stream); |
c5aa993b JM |
1693 | break; |
1694 | case '\b': | |
43e526b9 | 1695 | do_fputs ("\\b", stream); |
c5aa993b JM |
1696 | break; |
1697 | case '\t': | |
43e526b9 | 1698 | do_fputs ("\\t", stream); |
c5aa993b JM |
1699 | break; |
1700 | case '\f': | |
43e526b9 | 1701 | do_fputs ("\\f", stream); |
c5aa993b JM |
1702 | break; |
1703 | case '\r': | |
43e526b9 | 1704 | do_fputs ("\\r", stream); |
c5aa993b JM |
1705 | break; |
1706 | case '\033': | |
43e526b9 | 1707 | do_fputs ("\\e", stream); |
c5aa993b JM |
1708 | break; |
1709 | case '\007': | |
43e526b9 | 1710 | do_fputs ("\\a", stream); |
c5aa993b JM |
1711 | break; |
1712 | default: | |
43e526b9 | 1713 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1714 | break; |
1715 | } | |
1716 | } | |
1717 | else | |
1718 | { | |
1719 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1720 | do_fputs ("\\", stream); |
1721 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1722 | } |
c906108c | 1723 | } |
43e526b9 JM |
1724 | |
1725 | /* Print the character C on STREAM as part of the contents of a | |
1726 | literal string whose delimiter is QUOTER. Note that these routines | |
1727 | should only be call for printing things which are independent of | |
581e13c1 | 1728 | the language of the program being debugged. */ |
43e526b9 JM |
1729 | |
1730 | void | |
fba45db2 | 1731 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1732 | { |
1733 | while (*str) | |
1734 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1735 | } | |
1736 | ||
1737 | void | |
fba45db2 | 1738 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1739 | { |
1740 | while (*str) | |
1741 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1742 | } | |
1743 | ||
0876f84a DJ |
1744 | void |
1745 | fputstrn_filtered (const char *str, int n, int quoter, | |
1746 | struct ui_file *stream) | |
1747 | { | |
1748 | int i; | |
e0627e85 | 1749 | |
0876f84a DJ |
1750 | for (i = 0; i < n; i++) |
1751 | printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter); | |
1752 | } | |
1753 | ||
43e526b9 | 1754 | void |
8731e58e AC |
1755 | fputstrn_unfiltered (const char *str, int n, int quoter, |
1756 | struct ui_file *stream) | |
43e526b9 JM |
1757 | { |
1758 | int i; | |
5d502164 | 1759 | |
43e526b9 JM |
1760 | for (i = 0; i < n; i++) |
1761 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1762 | } | |
c906108c | 1763 | \f |
c5aa993b | 1764 | |
c906108c SS |
1765 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1766 | static unsigned int lines_per_page; | |
920d2a44 AC |
1767 | static void |
1768 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1769 | struct cmd_list_element *c, const char *value) | |
1770 | { | |
3e43a32a MS |
1771 | fprintf_filtered (file, |
1772 | _("Number of lines gdb thinks are in a page is %s.\n"), | |
920d2a44 AC |
1773 | value); |
1774 | } | |
eb0d3137 | 1775 | |
cbfbd72a | 1776 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1777 | static unsigned int chars_per_line; |
920d2a44 AC |
1778 | static void |
1779 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1780 | struct cmd_list_element *c, const char *value) | |
1781 | { | |
3e43a32a MS |
1782 | fprintf_filtered (file, |
1783 | _("Number of characters gdb thinks " | |
1784 | "are in a line is %s.\n"), | |
920d2a44 AC |
1785 | value); |
1786 | } | |
eb0d3137 | 1787 | |
c906108c SS |
1788 | /* Current count of lines printed on this page, chars on this line. */ |
1789 | static unsigned int lines_printed, chars_printed; | |
1790 | ||
1791 | /* Buffer and start column of buffered text, for doing smarter word- | |
1792 | wrapping. When someone calls wrap_here(), we start buffering output | |
1793 | that comes through fputs_filtered(). If we see a newline, we just | |
1794 | spit it out and forget about the wrap_here(). If we see another | |
1795 | wrap_here(), we spit it out and remember the newer one. If we see | |
1796 | the end of the line, we spit out a newline, the indent, and then | |
1797 | the buffered output. */ | |
1798 | ||
1799 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1800 | are waiting to be output (they have already been counted in chars_printed). | |
1801 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1802 | static char *wrap_buffer; | |
1803 | ||
1804 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1805 | static char *wrap_pointer; | |
1806 | ||
1807 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1808 | is non-zero. */ | |
1809 | static char *wrap_indent; | |
1810 | ||
1811 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1812 | is not in effect. */ | |
1813 | static int wrap_column; | |
c906108c | 1814 | \f |
c5aa993b | 1815 | |
eb0d3137 MK |
1816 | /* Inialize the number of lines per page and chars per line. */ |
1817 | ||
c906108c | 1818 | void |
fba45db2 | 1819 | init_page_info (void) |
c906108c | 1820 | { |
5da1313b JK |
1821 | if (batch_flag) |
1822 | { | |
1823 | lines_per_page = UINT_MAX; | |
1824 | chars_per_line = UINT_MAX; | |
1825 | } | |
1826 | else | |
c906108c | 1827 | #if defined(TUI) |
5ecb1806 | 1828 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1829 | #endif |
1830 | { | |
eb0d3137 | 1831 | int rows, cols; |
c906108c | 1832 | |
ec145965 EZ |
1833 | #if defined(__GO32__) |
1834 | rows = ScreenRows (); | |
1835 | cols = ScreenCols (); | |
1836 | lines_per_page = rows; | |
1837 | chars_per_line = cols; | |
1838 | #else | |
eb0d3137 MK |
1839 | /* Make sure Readline has initialized its terminal settings. */ |
1840 | rl_reset_terminal (NULL); | |
c906108c | 1841 | |
eb0d3137 MK |
1842 | /* Get the screen size from Readline. */ |
1843 | rl_get_screen_size (&rows, &cols); | |
1844 | lines_per_page = rows; | |
1845 | chars_per_line = cols; | |
c906108c | 1846 | |
eb0d3137 MK |
1847 | /* Readline should have fetched the termcap entry for us. */ |
1848 | if (tgetnum ("li") < 0 || getenv ("EMACS")) | |
1849 | { | |
1850 | /* The number of lines per page is not mentioned in the | |
1851 | terminal description. This probably means that paging is | |
1852 | not useful (e.g. emacs shell window), so disable paging. */ | |
1853 | lines_per_page = UINT_MAX; | |
1854 | } | |
c906108c | 1855 | |
eb0d3137 | 1856 | /* FIXME: Get rid of this junk. */ |
c906108c | 1857 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) |
c906108c SS |
1858 | SIGWINCH_HANDLER (SIGWINCH); |
1859 | #endif | |
eb0d3137 | 1860 | |
c906108c | 1861 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1862 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1863 | lines_per_page = UINT_MAX; |
eb0d3137 | 1864 | #endif |
ec145965 | 1865 | } |
eb0d3137 MK |
1866 | |
1867 | set_screen_size (); | |
c5aa993b | 1868 | set_width (); |
c906108c SS |
1869 | } |
1870 | ||
5da1313b JK |
1871 | /* Helper for make_cleanup_restore_page_info. */ |
1872 | ||
1873 | static void | |
1874 | do_restore_page_info_cleanup (void *arg) | |
1875 | { | |
1876 | set_screen_size (); | |
1877 | set_width (); | |
1878 | } | |
1879 | ||
1880 | /* Provide cleanup for restoring the terminal size. */ | |
1881 | ||
1882 | struct cleanup * | |
1883 | make_cleanup_restore_page_info (void) | |
1884 | { | |
1885 | struct cleanup *back_to; | |
1886 | ||
1887 | back_to = make_cleanup (do_restore_page_info_cleanup, NULL); | |
1888 | make_cleanup_restore_uinteger (&lines_per_page); | |
1889 | make_cleanup_restore_uinteger (&chars_per_line); | |
1890 | ||
1891 | return back_to; | |
1892 | } | |
1893 | ||
1894 | /* Temporarily set BATCH_FLAG and the associated unlimited terminal size. | |
1895 | Provide cleanup for restoring the original state. */ | |
1896 | ||
1897 | struct cleanup * | |
1898 | set_batch_flag_and_make_cleanup_restore_page_info (void) | |
1899 | { | |
1900 | struct cleanup *back_to = make_cleanup_restore_page_info (); | |
1901 | ||
1902 | make_cleanup_restore_integer (&batch_flag); | |
1903 | batch_flag = 1; | |
1904 | init_page_info (); | |
1905 | ||
1906 | return back_to; | |
1907 | } | |
1908 | ||
eb0d3137 MK |
1909 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1910 | ||
1911 | static void | |
1912 | set_screen_size (void) | |
1913 | { | |
1914 | int rows = lines_per_page; | |
1915 | int cols = chars_per_line; | |
1916 | ||
1917 | if (rows <= 0) | |
1918 | rows = INT_MAX; | |
1919 | ||
1920 | if (cols <= 0) | |
0caa462c | 1921 | cols = INT_MAX; |
eb0d3137 MK |
1922 | |
1923 | /* Update Readline's idea of the terminal size. */ | |
1924 | rl_set_screen_size (rows, cols); | |
1925 | } | |
1926 | ||
1927 | /* Reinitialize WRAP_BUFFER according to the current value of | |
1928 | CHARS_PER_LINE. */ | |
1929 | ||
c906108c | 1930 | static void |
fba45db2 | 1931 | set_width (void) |
c906108c SS |
1932 | { |
1933 | if (chars_per_line == 0) | |
c5aa993b | 1934 | init_page_info (); |
c906108c SS |
1935 | |
1936 | if (!wrap_buffer) | |
1937 | { | |
1938 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1939 | wrap_buffer[0] = '\0'; | |
1940 | } | |
1941 | else | |
1942 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 1943 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
1944 | } |
1945 | ||
c5aa993b | 1946 | static void |
fba45db2 | 1947 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1948 | { |
eb0d3137 | 1949 | set_screen_size (); |
c906108c SS |
1950 | set_width (); |
1951 | } | |
1952 | ||
eb0d3137 MK |
1953 | static void |
1954 | set_height_command (char *args, int from_tty, struct cmd_list_element *c) | |
1955 | { | |
1956 | set_screen_size (); | |
1957 | } | |
1958 | ||
c906108c SS |
1959 | /* Wait, so the user can read what's on the screen. Prompt the user |
1960 | to continue by pressing RETURN. */ | |
1961 | ||
1962 | static void | |
fba45db2 | 1963 | prompt_for_continue (void) |
c906108c SS |
1964 | { |
1965 | char *ignore; | |
1966 | char cont_prompt[120]; | |
1967 | ||
1968 | if (annotation_level > 1) | |
a3f17187 | 1969 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
1970 | |
1971 | strcpy (cont_prompt, | |
1972 | "---Type <return> to continue, or q <return> to quit---"); | |
1973 | if (annotation_level > 1) | |
1974 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1975 | ||
1976 | /* We must do this *before* we call gdb_readline, else it will eventually | |
1977 | call us -- thinking that we're trying to print beyond the end of the | |
1978 | screen. */ | |
1979 | reinitialize_more_filter (); | |
1980 | ||
1981 | immediate_quit++; | |
1982 | /* On a real operating system, the user can quit with SIGINT. | |
1983 | But not on GO32. | |
1984 | ||
1985 | 'q' is provided on all systems so users don't have to change habits | |
1986 | from system to system, and because telling them what to do in | |
1987 | the prompt is more user-friendly than expecting them to think of | |
1988 | SIGINT. */ | |
1989 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
1990 | whereas control-C to gdb_readline will cause the user to get dumped | |
1991 | out to DOS. */ | |
b4f5539f | 1992 | ignore = gdb_readline_wrapper (cont_prompt); |
c906108c SS |
1993 | |
1994 | if (annotation_level > 1) | |
a3f17187 | 1995 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c SS |
1996 | |
1997 | if (ignore) | |
1998 | { | |
1999 | char *p = ignore; | |
5d502164 | 2000 | |
c906108c SS |
2001 | while (*p == ' ' || *p == '\t') |
2002 | ++p; | |
2003 | if (p[0] == 'q') | |
362646f5 | 2004 | async_request_quit (0); |
b8c9b27d | 2005 | xfree (ignore); |
c906108c SS |
2006 | } |
2007 | immediate_quit--; | |
2008 | ||
2009 | /* Now we have to do this again, so that GDB will know that it doesn't | |
2010 | need to save the ---Type <return>--- line at the top of the screen. */ | |
2011 | reinitialize_more_filter (); | |
2012 | ||
581e13c1 | 2013 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ |
c906108c SS |
2014 | } |
2015 | ||
2016 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
2017 | ||
2018 | void | |
fba45db2 | 2019 | reinitialize_more_filter (void) |
c906108c SS |
2020 | { |
2021 | lines_printed = 0; | |
2022 | chars_printed = 0; | |
2023 | } | |
2024 | ||
2025 | /* Indicate that if the next sequence of characters overflows the line, | |
581e13c1 | 2026 | a newline should be inserted here rather than when it hits the end. |
c906108c SS |
2027 | If INDENT is non-null, it is a string to be printed to indent the |
2028 | wrapped part on the next line. INDENT must remain accessible until | |
2029 | the next call to wrap_here() or until a newline is printed through | |
2030 | fputs_filtered(). | |
2031 | ||
2032 | If the line is already overfull, we immediately print a newline and | |
2033 | the indentation, and disable further wrapping. | |
2034 | ||
2035 | If we don't know the width of lines, but we know the page height, | |
2036 | we must not wrap words, but should still keep track of newlines | |
2037 | that were explicitly printed. | |
2038 | ||
2039 | INDENT should not contain tabs, as that will mess up the char count | |
2040 | on the next line. FIXME. | |
2041 | ||
2042 | This routine is guaranteed to force out any output which has been | |
2043 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
2044 | used to force out output from the wrap_buffer. */ | |
2045 | ||
2046 | void | |
fba45db2 | 2047 | wrap_here (char *indent) |
c906108c | 2048 | { |
581e13c1 | 2049 | /* This should have been allocated, but be paranoid anyway. */ |
c906108c | 2050 | if (!wrap_buffer) |
3e43a32a MS |
2051 | internal_error (__FILE__, __LINE__, |
2052 | _("failed internal consistency check")); | |
c906108c SS |
2053 | |
2054 | if (wrap_buffer[0]) | |
2055 | { | |
2056 | *wrap_pointer = '\0'; | |
2057 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
2058 | } | |
2059 | wrap_pointer = wrap_buffer; | |
2060 | wrap_buffer[0] = '\0'; | |
3e43a32a | 2061 | if (chars_per_line == UINT_MAX) /* No line overflow checking. */ |
c906108c SS |
2062 | { |
2063 | wrap_column = 0; | |
2064 | } | |
2065 | else if (chars_printed >= chars_per_line) | |
2066 | { | |
2067 | puts_filtered ("\n"); | |
2068 | if (indent != NULL) | |
2069 | puts_filtered (indent); | |
2070 | wrap_column = 0; | |
2071 | } | |
2072 | else | |
2073 | { | |
2074 | wrap_column = chars_printed; | |
2075 | if (indent == NULL) | |
2076 | wrap_indent = ""; | |
2077 | else | |
2078 | wrap_indent = indent; | |
2079 | } | |
2080 | } | |
2081 | ||
4a351cef | 2082 | /* Print input string to gdb_stdout, filtered, with wrap, |
581e13c1 | 2083 | arranging strings in columns of n chars. String can be |
4a351cef AF |
2084 | right or left justified in the column. Never prints |
2085 | trailing spaces. String should never be longer than | |
2086 | width. FIXME: this could be useful for the EXAMINE | |
581e13c1 | 2087 | command, which currently doesn't tabulate very well. */ |
4a351cef AF |
2088 | |
2089 | void | |
2090 | puts_filtered_tabular (char *string, int width, int right) | |
2091 | { | |
2092 | int spaces = 0; | |
2093 | int stringlen; | |
2094 | char *spacebuf; | |
2095 | ||
2096 | gdb_assert (chars_per_line > 0); | |
2097 | if (chars_per_line == UINT_MAX) | |
2098 | { | |
2099 | fputs_filtered (string, gdb_stdout); | |
2100 | fputs_filtered ("\n", gdb_stdout); | |
2101 | return; | |
2102 | } | |
2103 | ||
2104 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
2105 | fputs_filtered ("\n", gdb_stdout); | |
2106 | ||
2107 | if (width >= chars_per_line) | |
2108 | width = chars_per_line - 1; | |
2109 | ||
2110 | stringlen = strlen (string); | |
2111 | ||
2112 | if (chars_printed > 0) | |
2113 | spaces = width - (chars_printed - 1) % width - 1; | |
2114 | if (right) | |
2115 | spaces += width - stringlen; | |
2116 | ||
2117 | spacebuf = alloca (spaces + 1); | |
2118 | spacebuf[spaces] = '\0'; | |
2119 | while (spaces--) | |
2120 | spacebuf[spaces] = ' '; | |
2121 | ||
2122 | fputs_filtered (spacebuf, gdb_stdout); | |
2123 | fputs_filtered (string, gdb_stdout); | |
2124 | } | |
2125 | ||
2126 | ||
c906108c | 2127 | /* Ensure that whatever gets printed next, using the filtered output |
581e13c1 | 2128 | commands, starts at the beginning of the line. I.e. if there is |
c906108c | 2129 | any pending output for the current line, flush it and start a new |
581e13c1 | 2130 | line. Otherwise do nothing. */ |
c906108c SS |
2131 | |
2132 | void | |
fba45db2 | 2133 | begin_line (void) |
c906108c SS |
2134 | { |
2135 | if (chars_printed > 0) | |
2136 | { | |
2137 | puts_filtered ("\n"); | |
2138 | } | |
2139 | } | |
2140 | ||
ac9a91a7 | 2141 | |
c906108c SS |
2142 | /* Like fputs but if FILTER is true, pause after every screenful. |
2143 | ||
2144 | Regardless of FILTER can wrap at points other than the final | |
2145 | character of a line. | |
2146 | ||
2147 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
2148 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
2149 | anything. | |
2150 | ||
2151 | Note that a longjmp to top level may occur in this routine (only if | |
2152 | FILTER is true) (since prompt_for_continue may do so) so this | |
2153 | routine should not be called when cleanups are not in place. */ | |
2154 | ||
2155 | static void | |
fba45db2 KB |
2156 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
2157 | int filter) | |
c906108c SS |
2158 | { |
2159 | const char *lineptr; | |
2160 | ||
2161 | if (linebuffer == 0) | |
2162 | return; | |
2163 | ||
2164 | /* Don't do any filtering if it is disabled. */ | |
390a8aca | 2165 | if (stream != gdb_stdout |
b2e7f004 JK |
2166 | || !pagination_enabled |
2167 | || batch_flag | |
390a8aca | 2168 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) |
58dadb1b | 2169 | || top_level_interpreter () == NULL |
390a8aca | 2170 | || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) |
c906108c SS |
2171 | { |
2172 | fputs_unfiltered (linebuffer, stream); | |
2173 | return; | |
2174 | } | |
2175 | ||
2176 | /* Go through and output each character. Show line extension | |
2177 | when this is necessary; prompt user for new page when this is | |
2178 | necessary. */ | |
c5aa993b | 2179 | |
c906108c SS |
2180 | lineptr = linebuffer; |
2181 | while (*lineptr) | |
2182 | { | |
2183 | /* Possible new page. */ | |
8731e58e | 2184 | if (filter && (lines_printed >= lines_per_page - 1)) |
c906108c SS |
2185 | prompt_for_continue (); |
2186 | ||
2187 | while (*lineptr && *lineptr != '\n') | |
2188 | { | |
2189 | /* Print a single line. */ | |
2190 | if (*lineptr == '\t') | |
2191 | { | |
2192 | if (wrap_column) | |
2193 | *wrap_pointer++ = '\t'; | |
2194 | else | |
2195 | fputc_unfiltered ('\t', stream); | |
2196 | /* Shifting right by 3 produces the number of tab stops | |
2197 | we have already passed, and then adding one and | |
c5aa993b | 2198 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
2199 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
2200 | lineptr++; | |
2201 | } | |
2202 | else | |
2203 | { | |
2204 | if (wrap_column) | |
2205 | *wrap_pointer++ = *lineptr; | |
2206 | else | |
c5aa993b | 2207 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
2208 | chars_printed++; |
2209 | lineptr++; | |
2210 | } | |
c5aa993b | 2211 | |
c906108c SS |
2212 | if (chars_printed >= chars_per_line) |
2213 | { | |
2214 | unsigned int save_chars = chars_printed; | |
2215 | ||
2216 | chars_printed = 0; | |
2217 | lines_printed++; | |
2218 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
2219 | if chars_per_line is right, we probably just overflowed |
2220 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
2221 | if (wrap_column) |
2222 | fputc_unfiltered ('\n', stream); | |
2223 | ||
2224 | /* Possible new page. */ | |
2225 | if (lines_printed >= lines_per_page - 1) | |
2226 | prompt_for_continue (); | |
2227 | ||
581e13c1 | 2228 | /* Now output indentation and wrapped string. */ |
c906108c SS |
2229 | if (wrap_column) |
2230 | { | |
2231 | fputs_unfiltered (wrap_indent, stream); | |
581e13c1 MS |
2232 | *wrap_pointer = '\0'; /* Null-terminate saved stuff, */ |
2233 | fputs_unfiltered (wrap_buffer, stream); /* and eject it. */ | |
c906108c SS |
2234 | /* FIXME, this strlen is what prevents wrap_indent from |
2235 | containing tabs. However, if we recurse to print it | |
2236 | and count its chars, we risk trouble if wrap_indent is | |
581e13c1 | 2237 | longer than (the user settable) chars_per_line. |
c906108c SS |
2238 | Note also that this can set chars_printed > chars_per_line |
2239 | if we are printing a long string. */ | |
2240 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 2241 | + (save_chars - wrap_column); |
c906108c SS |
2242 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
2243 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
2244 | wrap_column = 0; /* And disable fancy wrap */ |
2245 | } | |
c906108c SS |
2246 | } |
2247 | } | |
2248 | ||
2249 | if (*lineptr == '\n') | |
2250 | { | |
2251 | chars_printed = 0; | |
3e43a32a MS |
2252 | wrap_here ((char *) 0); /* Spit out chars, cancel |
2253 | further wraps. */ | |
c906108c SS |
2254 | lines_printed++; |
2255 | fputc_unfiltered ('\n', stream); | |
2256 | lineptr++; | |
2257 | } | |
2258 | } | |
2259 | } | |
2260 | ||
2261 | void | |
fba45db2 | 2262 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
2263 | { |
2264 | fputs_maybe_filtered (linebuffer, stream, 1); | |
2265 | } | |
2266 | ||
2267 | int | |
fba45db2 | 2268 | putchar_unfiltered (int c) |
c906108c | 2269 | { |
11cf8741 | 2270 | char buf = c; |
e0627e85 | 2271 | |
d9fcf2fb | 2272 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
2273 | return c; |
2274 | } | |
2275 | ||
d1f4cff8 AC |
2276 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
2277 | May return nonlocally. */ | |
2278 | ||
2279 | int | |
2280 | putchar_filtered (int c) | |
2281 | { | |
2282 | return fputc_filtered (c, gdb_stdout); | |
2283 | } | |
2284 | ||
c906108c | 2285 | int |
fba45db2 | 2286 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 2287 | { |
11cf8741 | 2288 | char buf = c; |
e0627e85 | 2289 | |
d9fcf2fb | 2290 | ui_file_write (stream, &buf, 1); |
c906108c SS |
2291 | return c; |
2292 | } | |
2293 | ||
2294 | int | |
fba45db2 | 2295 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
2296 | { |
2297 | char buf[2]; | |
2298 | ||
2299 | buf[0] = c; | |
2300 | buf[1] = 0; | |
2301 | fputs_filtered (buf, stream); | |
2302 | return c; | |
2303 | } | |
2304 | ||
2305 | /* puts_debug is like fputs_unfiltered, except it prints special | |
2306 | characters in printable fashion. */ | |
2307 | ||
2308 | void | |
fba45db2 | 2309 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
2310 | { |
2311 | int ch; | |
2312 | ||
2313 | /* Print prefix and suffix after each line. */ | |
2314 | static int new_line = 1; | |
2315 | static int return_p = 0; | |
2316 | static char *prev_prefix = ""; | |
2317 | static char *prev_suffix = ""; | |
2318 | ||
2319 | if (*string == '\n') | |
2320 | return_p = 0; | |
2321 | ||
2322 | /* If the prefix is changing, print the previous suffix, a new line, | |
2323 | and the new prefix. */ | |
c5aa993b | 2324 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2325 | { |
9846de1b JM |
2326 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2327 | fputs_unfiltered ("\n", gdb_stdlog); | |
2328 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2329 | } |
2330 | ||
2331 | /* Print prefix if we printed a newline during the previous call. */ | |
2332 | if (new_line) | |
2333 | { | |
2334 | new_line = 0; | |
9846de1b | 2335 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2336 | } |
2337 | ||
2338 | prev_prefix = prefix; | |
2339 | prev_suffix = suffix; | |
2340 | ||
2341 | /* Output characters in a printable format. */ | |
2342 | while ((ch = *string++) != '\0') | |
2343 | { | |
2344 | switch (ch) | |
c5aa993b | 2345 | { |
c906108c SS |
2346 | default: |
2347 | if (isprint (ch)) | |
9846de1b | 2348 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2349 | |
2350 | else | |
9846de1b | 2351 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2352 | break; |
2353 | ||
c5aa993b JM |
2354 | case '\\': |
2355 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2356 | break; | |
2357 | case '\b': | |
2358 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2359 | break; | |
2360 | case '\f': | |
2361 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2362 | break; | |
2363 | case '\n': | |
2364 | new_line = 1; | |
2365 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2366 | break; | |
2367 | case '\r': | |
2368 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2369 | break; | |
2370 | case '\t': | |
2371 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2372 | break; | |
2373 | case '\v': | |
2374 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2375 | break; | |
2376 | } | |
c906108c SS |
2377 | |
2378 | return_p = ch == '\r'; | |
2379 | } | |
2380 | ||
2381 | /* Print suffix if we printed a newline. */ | |
2382 | if (new_line) | |
2383 | { | |
9846de1b JM |
2384 | fputs_unfiltered (suffix, gdb_stdlog); |
2385 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2386 | } |
2387 | } | |
2388 | ||
2389 | ||
2390 | /* Print a variable number of ARGS using format FORMAT. If this | |
2391 | information is going to put the amount written (since the last call | |
2392 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2393 | call prompt_for_continue to get the users permision to continue. | |
2394 | ||
2395 | Unlike fprintf, this function does not return a value. | |
2396 | ||
2397 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2398 | fprintf (takes a stream to write on), and printf (the usual). | |
2399 | ||
2400 | Note also that a longjmp to top level may occur in this routine | |
2401 | (since prompt_for_continue may do so) so this routine should not be | |
2402 | called when cleanups are not in place. */ | |
2403 | ||
2404 | static void | |
fba45db2 KB |
2405 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2406 | va_list args, int filter) | |
c906108c SS |
2407 | { |
2408 | char *linebuffer; | |
2409 | struct cleanup *old_cleanups; | |
2410 | ||
e623b504 | 2411 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2412 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2413 | fputs_maybe_filtered (linebuffer, stream, filter); |
2414 | do_cleanups (old_cleanups); | |
2415 | } | |
2416 | ||
2417 | ||
2418 | void | |
fba45db2 | 2419 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2420 | { |
2421 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2422 | } | |
2423 | ||
2424 | void | |
fba45db2 | 2425 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2426 | { |
2427 | char *linebuffer; | |
2428 | struct cleanup *old_cleanups; | |
2429 | ||
e623b504 | 2430 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2431 | old_cleanups = make_cleanup (xfree, linebuffer); |
75feb17d DJ |
2432 | if (debug_timestamp && stream == gdb_stdlog) |
2433 | { | |
2434 | struct timeval tm; | |
2435 | char *timestamp; | |
6e5abd65 | 2436 | int len, need_nl; |
75feb17d DJ |
2437 | |
2438 | gettimeofday (&tm, NULL); | |
6e5abd65 PA |
2439 | |
2440 | len = strlen (linebuffer); | |
2441 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); | |
2442 | ||
2443 | timestamp = xstrprintf ("%ld:%ld %s%s", | |
2444 | (long) tm.tv_sec, (long) tm.tv_usec, | |
2445 | linebuffer, | |
2446 | need_nl ? "\n": ""); | |
75feb17d DJ |
2447 | make_cleanup (xfree, timestamp); |
2448 | fputs_unfiltered (timestamp, stream); | |
2449 | } | |
6e5abd65 PA |
2450 | else |
2451 | fputs_unfiltered (linebuffer, stream); | |
c906108c SS |
2452 | do_cleanups (old_cleanups); |
2453 | } | |
2454 | ||
2455 | void | |
fba45db2 | 2456 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2457 | { |
2458 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2459 | } | |
2460 | ||
2461 | void | |
fba45db2 | 2462 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2463 | { |
2464 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2465 | } | |
2466 | ||
c906108c | 2467 | void |
8731e58e | 2468 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2469 | { |
2470 | va_list args; | |
e0627e85 | 2471 | |
c906108c | 2472 | va_start (args, format); |
c906108c SS |
2473 | vfprintf_filtered (stream, format, args); |
2474 | va_end (args); | |
2475 | } | |
2476 | ||
c906108c | 2477 | void |
8731e58e | 2478 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2479 | { |
2480 | va_list args; | |
e0627e85 | 2481 | |
c906108c | 2482 | va_start (args, format); |
c906108c SS |
2483 | vfprintf_unfiltered (stream, format, args); |
2484 | va_end (args); | |
2485 | } | |
2486 | ||
2487 | /* Like fprintf_filtered, but prints its result indented. | |
2488 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2489 | ||
c906108c | 2490 | void |
8731e58e AC |
2491 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2492 | ...) | |
c906108c SS |
2493 | { |
2494 | va_list args; | |
e0627e85 | 2495 | |
c906108c | 2496 | va_start (args, format); |
c906108c SS |
2497 | print_spaces_filtered (spaces, stream); |
2498 | ||
2499 | vfprintf_filtered (stream, format, args); | |
2500 | va_end (args); | |
2501 | } | |
2502 | ||
2503 | ||
c906108c | 2504 | void |
8731e58e | 2505 | printf_filtered (const char *format, ...) |
c906108c SS |
2506 | { |
2507 | va_list args; | |
e0627e85 | 2508 | |
c906108c | 2509 | va_start (args, format); |
c906108c SS |
2510 | vfprintf_filtered (gdb_stdout, format, args); |
2511 | va_end (args); | |
2512 | } | |
2513 | ||
2514 | ||
c906108c | 2515 | void |
8731e58e | 2516 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2517 | { |
2518 | va_list args; | |
e0627e85 | 2519 | |
c906108c | 2520 | va_start (args, format); |
c906108c SS |
2521 | vfprintf_unfiltered (gdb_stdout, format, args); |
2522 | va_end (args); | |
2523 | } | |
2524 | ||
2525 | /* Like printf_filtered, but prints it's result indented. | |
2526 | Called as printfi_filtered (spaces, format, ...); */ | |
2527 | ||
c906108c | 2528 | void |
8731e58e | 2529 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2530 | { |
2531 | va_list args; | |
e0627e85 | 2532 | |
c906108c | 2533 | va_start (args, format); |
c906108c SS |
2534 | print_spaces_filtered (spaces, gdb_stdout); |
2535 | vfprintf_filtered (gdb_stdout, format, args); | |
2536 | va_end (args); | |
2537 | } | |
2538 | ||
2539 | /* Easy -- but watch out! | |
2540 | ||
2541 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2542 | This one doesn't, and had better not! */ | |
2543 | ||
2544 | void | |
fba45db2 | 2545 | puts_filtered (const char *string) |
c906108c SS |
2546 | { |
2547 | fputs_filtered (string, gdb_stdout); | |
2548 | } | |
2549 | ||
2550 | void | |
fba45db2 | 2551 | puts_unfiltered (const char *string) |
c906108c SS |
2552 | { |
2553 | fputs_unfiltered (string, gdb_stdout); | |
2554 | } | |
2555 | ||
2556 | /* Return a pointer to N spaces and a null. The pointer is good | |
2557 | until the next call to here. */ | |
2558 | char * | |
fba45db2 | 2559 | n_spaces (int n) |
c906108c | 2560 | { |
392a587b JM |
2561 | char *t; |
2562 | static char *spaces = 0; | |
2563 | static int max_spaces = -1; | |
c906108c SS |
2564 | |
2565 | if (n > max_spaces) | |
2566 | { | |
2567 | if (spaces) | |
b8c9b27d | 2568 | xfree (spaces); |
c5aa993b JM |
2569 | spaces = (char *) xmalloc (n + 1); |
2570 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2571 | *--t = ' '; |
2572 | spaces[n] = '\0'; | |
2573 | max_spaces = n; | |
2574 | } | |
2575 | ||
2576 | return spaces + max_spaces - n; | |
2577 | } | |
2578 | ||
2579 | /* Print N spaces. */ | |
2580 | void | |
fba45db2 | 2581 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2582 | { |
2583 | fputs_filtered (n_spaces (n), stream); | |
2584 | } | |
2585 | \f | |
4a351cef | 2586 | /* C++/ObjC demangler stuff. */ |
c906108c | 2587 | |
389e51db AC |
2588 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2589 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2590 | If the name is not mangled, or the language for the name is unknown, or | |
581e13c1 | 2591 | demangling is off, the name is printed in its "raw" form. */ |
c906108c SS |
2592 | |
2593 | void | |
8731e58e AC |
2594 | fprintf_symbol_filtered (struct ui_file *stream, char *name, |
2595 | enum language lang, int arg_mode) | |
c906108c SS |
2596 | { |
2597 | char *demangled; | |
2598 | ||
2599 | if (name != NULL) | |
2600 | { | |
2601 | /* If user wants to see raw output, no problem. */ | |
2602 | if (!demangle) | |
2603 | { | |
2604 | fputs_filtered (name, stream); | |
2605 | } | |
2606 | else | |
2607 | { | |
9a3d7dfd | 2608 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2609 | fputs_filtered (demangled ? demangled : name, stream); |
2610 | if (demangled != NULL) | |
2611 | { | |
b8c9b27d | 2612 | xfree (demangled); |
c906108c SS |
2613 | } |
2614 | } | |
2615 | } | |
2616 | } | |
2617 | ||
2618 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2619 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2620 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2621 | |
c906108c SS |
2622 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2623 | This "feature" is useful when searching for matching C++ function names | |
2624 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
581e13c1 | 2625 | function). */ |
c906108c SS |
2626 | |
2627 | int | |
fba45db2 | 2628 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2629 | { |
2630 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2631 | { | |
2632 | while (isspace (*string1)) | |
2633 | { | |
2634 | string1++; | |
2635 | } | |
2636 | while (isspace (*string2)) | |
2637 | { | |
2638 | string2++; | |
2639 | } | |
559a7a62 JK |
2640 | if (case_sensitivity == case_sensitive_on && *string1 != *string2) |
2641 | break; | |
2642 | if (case_sensitivity == case_sensitive_off | |
2643 | && (tolower ((unsigned char) *string1) | |
2644 | != tolower ((unsigned char) *string2))) | |
2645 | break; | |
c906108c SS |
2646 | if (*string1 != '\0') |
2647 | { | |
2648 | string1++; | |
2649 | string2++; | |
2650 | } | |
2651 | } | |
2652 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2653 | } | |
2de7ced7 | 2654 | |
0fe19209 DC |
2655 | /* This is like strcmp except that it ignores whitespace and treats |
2656 | '(' as the first non-NULL character in terms of ordering. Like | |
2657 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2658 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2659 | according to that ordering. | |
2660 | ||
2661 | If a list is sorted according to this function and if you want to | |
2662 | find names in the list that match some fixed NAME according to | |
2663 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2664 | where this function would put NAME. | |
2665 | ||
559a7a62 JK |
2666 | This function must be neutral to the CASE_SENSITIVITY setting as the user |
2667 | may choose it during later lookup. Therefore this function always sorts | |
2668 | primarily case-insensitively and secondarily case-sensitively. | |
2669 | ||
0fe19209 DC |
2670 | Here are some examples of why using strcmp to sort is a bad idea: |
2671 | ||
2672 | Whitespace example: | |
2673 | ||
2674 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2675 | we try to do a search for "foo<char*>", strcmp will locate this | |
2676 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2677 | will start looking at strings beginning with "goo", and will never | |
2678 | see the correct match of "foo<char *>". | |
2679 | ||
2680 | Parenthesis example: | |
2681 | ||
2682 | In practice, this is less like to be an issue, but I'll give it a | |
2683 | shot. Let's assume that '$' is a legitimate character to occur in | |
2684 | symbols. (Which may well even be the case on some systems.) Then | |
2685 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2686 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2687 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2688 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2689 | "foo") is false, so it won't proceed to the actual match of | |
2690 | "foo(int)" with "foo". */ | |
2691 | ||
2692 | int | |
2693 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2694 | { | |
559a7a62 JK |
2695 | const char *saved_string1 = string1, *saved_string2 = string2; |
2696 | enum case_sensitivity case_pass = case_sensitive_off; | |
2697 | ||
2698 | for (;;) | |
0fe19209 | 2699 | { |
b11b1f88 JK |
2700 | /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'. |
2701 | Provide stub characters if we are already at the end of one of the | |
2702 | strings. */ | |
2703 | char c1 = 'X', c2 = 'X'; | |
2704 | ||
2705 | while (*string1 != '\0' && *string2 != '\0') | |
0fe19209 | 2706 | { |
b11b1f88 JK |
2707 | while (isspace (*string1)) |
2708 | string1++; | |
2709 | while (isspace (*string2)) | |
2710 | string2++; | |
2711 | ||
559a7a62 JK |
2712 | switch (case_pass) |
2713 | { | |
2714 | case case_sensitive_off: | |
2715 | c1 = tolower ((unsigned char) *string1); | |
2716 | c2 = tolower ((unsigned char) *string2); | |
2717 | break; | |
2718 | case case_sensitive_on: | |
b11b1f88 JK |
2719 | c1 = *string1; |
2720 | c2 = *string2; | |
559a7a62 JK |
2721 | break; |
2722 | } | |
b11b1f88 JK |
2723 | if (c1 != c2) |
2724 | break; | |
2725 | ||
2726 | if (*string1 != '\0') | |
2727 | { | |
2728 | string1++; | |
2729 | string2++; | |
2730 | } | |
0fe19209 | 2731 | } |
b11b1f88 JK |
2732 | |
2733 | switch (*string1) | |
0fe19209 | 2734 | { |
b11b1f88 JK |
2735 | /* Characters are non-equal unless they're both '\0'; we want to |
2736 | make sure we get the comparison right according to our | |
2737 | comparison in the cases where one of them is '\0' or '('. */ | |
2738 | case '\0': | |
2739 | if (*string2 == '\0') | |
559a7a62 | 2740 | break; |
b11b1f88 JK |
2741 | else |
2742 | return -1; | |
2743 | case '(': | |
2744 | if (*string2 == '\0') | |
2745 | return 1; | |
2746 | else | |
2747 | return -1; | |
2748 | default: | |
2749 | if (*string2 == '\0' || *string2 == '(') | |
2750 | return 1; | |
559a7a62 JK |
2751 | else if (c1 > c2) |
2752 | return 1; | |
2753 | else if (c1 < c2) | |
2754 | return -1; | |
2755 | /* PASSTHRU */ | |
0fe19209 | 2756 | } |
559a7a62 JK |
2757 | |
2758 | if (case_pass == case_sensitive_on) | |
2759 | return 0; | |
2760 | ||
2761 | /* Otherwise the strings were equal in case insensitive way, make | |
2762 | a more fine grained comparison in a case sensitive way. */ | |
2763 | ||
2764 | case_pass = case_sensitive_on; | |
2765 | string1 = saved_string1; | |
2766 | string2 = saved_string2; | |
0fe19209 | 2767 | } |
0fe19209 DC |
2768 | } |
2769 | ||
2de7ced7 DJ |
2770 | /* A simple comparison function with opposite semantics to strcmp. */ |
2771 | ||
2772 | int | |
2773 | streq (const char *lhs, const char *rhs) | |
2774 | { | |
2775 | return !strcmp (lhs, rhs); | |
2776 | } | |
c906108c | 2777 | \f |
c5aa993b | 2778 | |
c906108c | 2779 | /* |
c5aa993b JM |
2780 | ** subset_compare() |
2781 | ** Answer whether string_to_compare is a full or partial match to | |
2782 | ** template_string. The partial match must be in sequence starting | |
2783 | ** at index 0. | |
2784 | */ | |
c906108c | 2785 | int |
fba45db2 | 2786 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
2787 | { |
2788 | int match; | |
e0627e85 | 2789 | |
8731e58e AC |
2790 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
2791 | && strlen (string_to_compare) <= strlen (template_string)) | |
2792 | match = | |
2793 | (strncmp | |
2794 | (template_string, string_to_compare, strlen (string_to_compare)) == 0); | |
7a292a7a SS |
2795 | else |
2796 | match = 0; | |
2797 | return match; | |
2798 | } | |
c906108c | 2799 | |
7a292a7a | 2800 | static void |
fba45db2 | 2801 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
2802 | { |
2803 | pagination_enabled = 1; | |
2804 | } | |
2805 | ||
7a292a7a | 2806 | static void |
fba45db2 | 2807 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
2808 | { |
2809 | pagination_enabled = 0; | |
2810 | } | |
75feb17d DJ |
2811 | |
2812 | static void | |
2813 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
2814 | struct cmd_list_element *c, const char *value) | |
2815 | { | |
3e43a32a MS |
2816 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), |
2817 | value); | |
75feb17d | 2818 | } |
c906108c | 2819 | \f |
c5aa993b | 2820 | |
c906108c | 2821 | void |
fba45db2 | 2822 | initialize_utils (void) |
c906108c | 2823 | { |
35096d9d AC |
2824 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
2825 | Set number of characters gdb thinks are in a line."), _("\ | |
2826 | Show number of characters gdb thinks are in a line."), NULL, | |
2827 | set_width_command, | |
920d2a44 | 2828 | show_chars_per_line, |
35096d9d AC |
2829 | &setlist, &showlist); |
2830 | ||
2831 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
2832 | Set number of lines gdb thinks are in a page."), _("\ | |
2833 | Show number of lines gdb thinks are in a page."), NULL, | |
2834 | set_height_command, | |
920d2a44 | 2835 | show_lines_per_page, |
35096d9d | 2836 | &setlist, &showlist); |
c5aa993b | 2837 | |
c906108c SS |
2838 | init_page_info (); |
2839 | ||
5bf193a2 AC |
2840 | add_setshow_boolean_cmd ("pagination", class_support, |
2841 | &pagination_enabled, _("\ | |
2842 | Set state of pagination."), _("\ | |
2843 | Show state of pagination."), NULL, | |
2844 | NULL, | |
920d2a44 | 2845 | show_pagination_enabled, |
5bf193a2 | 2846 | &setlist, &showlist); |
4261bedc | 2847 | |
c906108c SS |
2848 | if (xdb_commands) |
2849 | { | |
c5aa993b | 2850 | add_com ("am", class_support, pagination_on_command, |
1bedd215 | 2851 | _("Enable pagination")); |
c5aa993b | 2852 | add_com ("sm", class_support, pagination_off_command, |
1bedd215 | 2853 | _("Disable pagination")); |
c906108c SS |
2854 | } |
2855 | ||
5bf193a2 AC |
2856 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, |
2857 | &sevenbit_strings, _("\ | |
2858 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
2859 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
2860 | NULL, | |
920d2a44 | 2861 | show_sevenbit_strings, |
5bf193a2 AC |
2862 | &setprintlist, &showprintlist); |
2863 | ||
75feb17d DJ |
2864 | add_setshow_boolean_cmd ("timestamp", class_maintenance, |
2865 | &debug_timestamp, _("\ | |
2866 | Set timestamping of debugging messages."), _("\ | |
2867 | Show timestamping of debugging messages."), _("\ | |
2868 | When set, debugging messages will be marked with seconds and microseconds."), | |
2869 | NULL, | |
2870 | show_debug_timestamp, | |
2871 | &setdebuglist, &showdebuglist); | |
c906108c SS |
2872 | } |
2873 | ||
581e13c1 | 2874 | /* Machine specific function to handle SIGWINCH signal. */ |
c906108c SS |
2875 | |
2876 | #ifdef SIGWINCH_HANDLER_BODY | |
c5aa993b | 2877 | SIGWINCH_HANDLER_BODY |
c906108c | 2878 | #endif |
581e13c1 MS |
2879 | /* Print routines to handle variable size regs, etc. */ |
2880 | /* Temporary storage using circular buffer. */ | |
c906108c | 2881 | #define NUMCELLS 16 |
0759e0bf | 2882 | #define CELLSIZE 50 |
c5aa993b | 2883 | static char * |
fba45db2 | 2884 | get_cell (void) |
c906108c SS |
2885 | { |
2886 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b | 2887 | static int cell = 0; |
e0627e85 | 2888 | |
c5aa993b JM |
2889 | if (++cell >= NUMCELLS) |
2890 | cell = 0; | |
c906108c SS |
2891 | return buf[cell]; |
2892 | } | |
2893 | ||
66bf4b3a | 2894 | const char * |
5af949e3 | 2895 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
2896 | { |
2897 | /* Truncate address to the size of a target address, avoiding shifts | |
2898 | larger or equal than the width of a CORE_ADDR. The local | |
2899 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
581e13c1 | 2900 | when it won't occur. */ |
66bf4b3a AC |
2901 | /* NOTE: This assumes that the significant address information is |
2902 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2903 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2904 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2905 | ||
5af949e3 | 2906 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
2907 | |
2908 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2909 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2910 | return hex_string (addr); | |
2911 | } | |
2912 | ||
f1310107 TJB |
2913 | /* This function is described in "defs.h". */ |
2914 | ||
2915 | const char * | |
2916 | print_core_address (struct gdbarch *gdbarch, CORE_ADDR address) | |
2917 | { | |
2918 | int addr_bit = gdbarch_addr_bit (gdbarch); | |
2919 | ||
2920 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2921 | address &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2922 | ||
2923 | /* FIXME: cagney/2002-05-03: Need local_address_string() function | |
2924 | that returns the language localized string formatted to a width | |
2925 | based on gdbarch_addr_bit. */ | |
2926 | if (addr_bit <= 32) | |
2927 | return hex_string_custom (address, 8); | |
2928 | else | |
2929 | return hex_string_custom (address, 16); | |
2930 | } | |
2931 | ||
8e3b41a9 JK |
2932 | /* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */ |
2933 | ||
2934 | hashval_t | |
2935 | core_addr_hash (const void *ap) | |
2936 | { | |
2937 | const CORE_ADDR *addrp = ap; | |
2938 | ||
2939 | return *addrp; | |
2940 | } | |
2941 | ||
2942 | /* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */ | |
2943 | ||
2944 | int | |
2945 | core_addr_eq (const void *ap, const void *bp) | |
2946 | { | |
2947 | const CORE_ADDR *addr_ap = ap; | |
2948 | const CORE_ADDR *addr_bp = bp; | |
2949 | ||
2950 | return *addr_ap == *addr_bp; | |
2951 | } | |
2952 | ||
8cf46f62 MK |
2953 | static char * |
2954 | decimal2str (char *sign, ULONGEST addr, int width) | |
104c1213 | 2955 | { |
8cf46f62 | 2956 | /* Steal code from valprint.c:print_decimal(). Should this worry |
581e13c1 | 2957 | about the real size of addr as the above does? */ |
104c1213 | 2958 | unsigned long temp[3]; |
8cf46f62 | 2959 | char *str = get_cell (); |
104c1213 | 2960 | int i = 0; |
5d502164 | 2961 | |
104c1213 JM |
2962 | do |
2963 | { | |
2964 | temp[i] = addr % (1000 * 1000 * 1000); | |
2965 | addr /= (1000 * 1000 * 1000); | |
2966 | i++; | |
bb599908 | 2967 | width -= 9; |
104c1213 JM |
2968 | } |
2969 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 2970 | |
bb599908 PH |
2971 | width += 9; |
2972 | if (width < 0) | |
2973 | width = 0; | |
8cf46f62 | 2974 | |
104c1213 JM |
2975 | switch (i) |
2976 | { | |
2977 | case 1: | |
8cf46f62 | 2978 | xsnprintf (str, CELLSIZE, "%s%0*lu", sign, width, temp[0]); |
104c1213 JM |
2979 | break; |
2980 | case 2: | |
8cf46f62 MK |
2981 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu", sign, width, |
2982 | temp[1], temp[0]); | |
104c1213 JM |
2983 | break; |
2984 | case 3: | |
8cf46f62 MK |
2985 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu%09lu", sign, width, |
2986 | temp[2], temp[1], temp[0]); | |
bb599908 PH |
2987 | break; |
2988 | default: | |
2989 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2990 | _("failed internal consistency check")); |
bb599908 | 2991 | } |
8cf46f62 MK |
2992 | |
2993 | return str; | |
bb599908 PH |
2994 | } |
2995 | ||
8cf46f62 MK |
2996 | static char * |
2997 | octal2str (ULONGEST addr, int width) | |
bb599908 PH |
2998 | { |
2999 | unsigned long temp[3]; | |
8cf46f62 | 3000 | char *str = get_cell (); |
bb599908 | 3001 | int i = 0; |
5d502164 | 3002 | |
bb599908 PH |
3003 | do |
3004 | { | |
3005 | temp[i] = addr % (0100000 * 0100000); | |
3006 | addr /= (0100000 * 0100000); | |
3007 | i++; | |
3008 | width -= 10; | |
3009 | } | |
3010 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 3011 | |
bb599908 PH |
3012 | width += 10; |
3013 | if (width < 0) | |
3014 | width = 0; | |
8cf46f62 | 3015 | |
bb599908 PH |
3016 | switch (i) |
3017 | { | |
3018 | case 1: | |
3019 | if (temp[0] == 0) | |
8cf46f62 | 3020 | xsnprintf (str, CELLSIZE, "%*o", width, 0); |
bb599908 | 3021 | else |
8cf46f62 | 3022 | xsnprintf (str, CELLSIZE, "0%0*lo", width, temp[0]); |
bb599908 PH |
3023 | break; |
3024 | case 2: | |
8cf46f62 | 3025 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo", width, temp[1], temp[0]); |
bb599908 PH |
3026 | break; |
3027 | case 3: | |
8cf46f62 MK |
3028 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo%010lo", width, |
3029 | temp[2], temp[1], temp[0]); | |
104c1213 JM |
3030 | break; |
3031 | default: | |
8731e58e | 3032 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 3033 | _("failed internal consistency check")); |
104c1213 | 3034 | } |
8cf46f62 MK |
3035 | |
3036 | return str; | |
104c1213 JM |
3037 | } |
3038 | ||
3039 | char * | |
623d3eb1 | 3040 | pulongest (ULONGEST u) |
104c1213 | 3041 | { |
623d3eb1 | 3042 | return decimal2str ("", u, 0); |
104c1213 JM |
3043 | } |
3044 | ||
3045 | char * | |
623d3eb1 | 3046 | plongest (LONGEST l) |
104c1213 | 3047 | { |
623d3eb1 DE |
3048 | if (l < 0) |
3049 | return decimal2str ("-", -l, 0); | |
104c1213 | 3050 | else |
623d3eb1 | 3051 | return decimal2str ("", l, 0); |
104c1213 JM |
3052 | } |
3053 | ||
8cf46f62 | 3054 | /* Eliminate warning from compiler on 32-bit systems. */ |
5683e87a AC |
3055 | static int thirty_two = 32; |
3056 | ||
104c1213 | 3057 | char * |
5683e87a | 3058 | phex (ULONGEST l, int sizeof_l) |
104c1213 | 3059 | { |
45a1e866 | 3060 | char *str; |
8cf46f62 | 3061 | |
5683e87a | 3062 | switch (sizeof_l) |
104c1213 JM |
3063 | { |
3064 | case 8: | |
45a1e866 | 3065 | str = get_cell (); |
8cf46f62 MK |
3066 | xsnprintf (str, CELLSIZE, "%08lx%08lx", |
3067 | (unsigned long) (l >> thirty_two), | |
3068 | (unsigned long) (l & 0xffffffff)); | |
104c1213 JM |
3069 | break; |
3070 | case 4: | |
45a1e866 | 3071 | str = get_cell (); |
8cf46f62 | 3072 | xsnprintf (str, CELLSIZE, "%08lx", (unsigned long) l); |
104c1213 JM |
3073 | break; |
3074 | case 2: | |
45a1e866 | 3075 | str = get_cell (); |
8cf46f62 | 3076 | xsnprintf (str, CELLSIZE, "%04x", (unsigned short) (l & 0xffff)); |
104c1213 JM |
3077 | break; |
3078 | default: | |
45a1e866 | 3079 | str = phex (l, sizeof (l)); |
5683e87a | 3080 | break; |
104c1213 | 3081 | } |
8cf46f62 | 3082 | |
5683e87a | 3083 | return str; |
104c1213 JM |
3084 | } |
3085 | ||
c5aa993b | 3086 | char * |
5683e87a | 3087 | phex_nz (ULONGEST l, int sizeof_l) |
c906108c | 3088 | { |
faf833ca | 3089 | char *str; |
8cf46f62 | 3090 | |
5683e87a | 3091 | switch (sizeof_l) |
c906108c | 3092 | { |
c5aa993b JM |
3093 | case 8: |
3094 | { | |
5683e87a | 3095 | unsigned long high = (unsigned long) (l >> thirty_two); |
5d502164 | 3096 | |
faf833ca | 3097 | str = get_cell (); |
c5aa993b | 3098 | if (high == 0) |
8cf46f62 MK |
3099 | xsnprintf (str, CELLSIZE, "%lx", |
3100 | (unsigned long) (l & 0xffffffff)); | |
c5aa993b | 3101 | else |
8cf46f62 MK |
3102 | xsnprintf (str, CELLSIZE, "%lx%08lx", high, |
3103 | (unsigned long) (l & 0xffffffff)); | |
c906108c | 3104 | break; |
c5aa993b JM |
3105 | } |
3106 | case 4: | |
faf833ca | 3107 | str = get_cell (); |
8cf46f62 | 3108 | xsnprintf (str, CELLSIZE, "%lx", (unsigned long) l); |
c5aa993b JM |
3109 | break; |
3110 | case 2: | |
faf833ca | 3111 | str = get_cell (); |
8cf46f62 | 3112 | xsnprintf (str, CELLSIZE, "%x", (unsigned short) (l & 0xffff)); |
c5aa993b JM |
3113 | break; |
3114 | default: | |
faf833ca | 3115 | str = phex_nz (l, sizeof (l)); |
5683e87a | 3116 | break; |
c906108c | 3117 | } |
8cf46f62 | 3118 | |
5683e87a | 3119 | return str; |
c906108c | 3120 | } |
ac2e2ef7 | 3121 | |
0759e0bf AC |
3122 | /* Converts a LONGEST to a C-format hexadecimal literal and stores it |
3123 | in a static string. Returns a pointer to this string. */ | |
3124 | char * | |
3125 | hex_string (LONGEST num) | |
3126 | { | |
3127 | char *result = get_cell (); | |
e0627e85 | 3128 | |
8cf46f62 | 3129 | xsnprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num))); |
0759e0bf AC |
3130 | return result; |
3131 | } | |
3132 | ||
3133 | /* Converts a LONGEST number to a C-format hexadecimal literal and | |
3134 | stores it in a static string. Returns a pointer to this string | |
3135 | that is valid until the next call. The number is padded on the | |
3136 | left with 0s to at least WIDTH characters. */ | |
3137 | char * | |
3138 | hex_string_custom (LONGEST num, int width) | |
3139 | { | |
3140 | char *result = get_cell (); | |
3141 | char *result_end = result + CELLSIZE - 1; | |
3142 | const char *hex = phex_nz (num, sizeof (num)); | |
3143 | int hex_len = strlen (hex); | |
3144 | ||
3145 | if (hex_len > width) | |
3146 | width = hex_len; | |
3147 | if (width + 2 >= CELLSIZE) | |
3e43a32a MS |
3148 | internal_error (__FILE__, __LINE__, _("\ |
3149 | hex_string_custom: insufficient space to store result")); | |
0759e0bf AC |
3150 | |
3151 | strcpy (result_end - width - 2, "0x"); | |
3152 | memset (result_end - width, '0', width); | |
3153 | strcpy (result_end - hex_len, hex); | |
3154 | return result_end - width - 2; | |
3155 | } | |
ac2e2ef7 | 3156 | |
bb599908 PH |
3157 | /* Convert VAL to a numeral in the given radix. For |
3158 | * radix 10, IS_SIGNED may be true, indicating a signed quantity; | |
3159 | * otherwise VAL is interpreted as unsigned. If WIDTH is supplied, | |
3160 | * it is the minimum width (0-padded if needed). USE_C_FORMAT means | |
3161 | * to use C format in all cases. If it is false, then 'x' | |
581e13c1 | 3162 | * and 'o' formats do not include a prefix (0x or leading 0). */ |
bb599908 PH |
3163 | |
3164 | char * | |
3165 | int_string (LONGEST val, int radix, int is_signed, int width, | |
3166 | int use_c_format) | |
3167 | { | |
3168 | switch (radix) | |
3169 | { | |
3170 | case 16: | |
3171 | { | |
3172 | char *result; | |
5d502164 | 3173 | |
bb599908 PH |
3174 | if (width == 0) |
3175 | result = hex_string (val); | |
3176 | else | |
3177 | result = hex_string_custom (val, width); | |
3178 | if (! use_c_format) | |
3179 | result += 2; | |
3180 | return result; | |
3181 | } | |
3182 | case 10: | |
3183 | { | |
bb599908 | 3184 | if (is_signed && val < 0) |
8cf46f62 | 3185 | return decimal2str ("-", -val, width); |
bb599908 | 3186 | else |
8cf46f62 | 3187 | return decimal2str ("", val, width); |
bb599908 PH |
3188 | } |
3189 | case 8: | |
3190 | { | |
8cf46f62 | 3191 | char *result = octal2str (val, width); |
5d502164 | 3192 | |
bb599908 PH |
3193 | if (use_c_format || val == 0) |
3194 | return result; | |
3195 | else | |
3196 | return result + 1; | |
3197 | } | |
3198 | default: | |
3199 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3200 | _("failed internal consistency check")); |
bb599908 PH |
3201 | } |
3202 | } | |
3203 | ||
03dd37c3 AC |
3204 | /* Convert a CORE_ADDR into a string. */ |
3205 | const char * | |
3206 | core_addr_to_string (const CORE_ADDR addr) | |
49b563f9 KS |
3207 | { |
3208 | char *str = get_cell (); | |
e0627e85 | 3209 | |
49b563f9 KS |
3210 | strcpy (str, "0x"); |
3211 | strcat (str, phex (addr, sizeof (addr))); | |
3212 | return str; | |
3213 | } | |
3214 | ||
3215 | const char * | |
3216 | core_addr_to_string_nz (const CORE_ADDR addr) | |
03dd37c3 AC |
3217 | { |
3218 | char *str = get_cell (); | |
e0627e85 | 3219 | |
03dd37c3 AC |
3220 | strcpy (str, "0x"); |
3221 | strcat (str, phex_nz (addr, sizeof (addr))); | |
3222 | return str; | |
3223 | } | |
3224 | ||
3225 | /* Convert a string back into a CORE_ADDR. */ | |
3226 | CORE_ADDR | |
3227 | string_to_core_addr (const char *my_string) | |
3228 | { | |
3229 | CORE_ADDR addr = 0; | |
9544c605 | 3230 | |
03dd37c3 AC |
3231 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
3232 | { | |
ced572fe | 3233 | /* Assume that it is in hex. */ |
03dd37c3 | 3234 | int i; |
5d502164 | 3235 | |
03dd37c3 AC |
3236 | for (i = 2; my_string[i] != '\0'; i++) |
3237 | { | |
3238 | if (isdigit (my_string[i])) | |
3239 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 3240 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
3241 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
3242 | else | |
63f06803 | 3243 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
3244 | } |
3245 | } | |
3246 | else | |
3247 | { | |
3248 | /* Assume that it is in decimal. */ | |
3249 | int i; | |
5d502164 | 3250 | |
03dd37c3 AC |
3251 | for (i = 0; my_string[i] != '\0'; i++) |
3252 | { | |
3253 | if (isdigit (my_string[i])) | |
3254 | addr = (my_string[i] - '0') + (addr * 10); | |
3255 | else | |
63f06803 | 3256 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
3257 | } |
3258 | } | |
9544c605 | 3259 | |
03dd37c3 AC |
3260 | return addr; |
3261 | } | |
58d370e0 | 3262 | |
17ea7499 CES |
3263 | const char * |
3264 | host_address_to_string (const void *addr) | |
3265 | { | |
3266 | char *str = get_cell (); | |
ea8992ce | 3267 | |
773698b5 | 3268 | xsnprintf (str, CELLSIZE, "0x%s", phex_nz ((uintptr_t) addr, sizeof (addr))); |
17ea7499 CES |
3269 | return str; |
3270 | } | |
3271 | ||
58d370e0 TT |
3272 | char * |
3273 | gdb_realpath (const char *filename) | |
3274 | { | |
70d35819 AC |
3275 | /* Method 1: The system has a compile time upper bound on a filename |
3276 | path. Use that and realpath() to canonicalize the name. This is | |
3277 | the most common case. Note that, if there isn't a compile time | |
3278 | upper bound, you want to avoid realpath() at all costs. */ | |
a4db0f07 | 3279 | #if defined(HAVE_REALPATH) |
70d35819 | 3280 | { |
a4db0f07 | 3281 | # if defined (PATH_MAX) |
70d35819 | 3282 | char buf[PATH_MAX]; |
a4db0f07 RH |
3283 | # define USE_REALPATH |
3284 | # elif defined (MAXPATHLEN) | |
70d35819 | 3285 | char buf[MAXPATHLEN]; |
a4db0f07 RH |
3286 | # define USE_REALPATH |
3287 | # endif | |
70d35819 | 3288 | # if defined (USE_REALPATH) |
82c0260e | 3289 | const char *rp = realpath (filename, buf); |
5d502164 | 3290 | |
70d35819 AC |
3291 | if (rp == NULL) |
3292 | rp = filename; | |
3293 | return xstrdup (rp); | |
70d35819 | 3294 | # endif |
6f88d630 | 3295 | } |
a4db0f07 RH |
3296 | #endif /* HAVE_REALPATH */ |
3297 | ||
70d35819 AC |
3298 | /* Method 2: The host system (i.e., GNU) has the function |
3299 | canonicalize_file_name() which malloc's a chunk of memory and | |
3300 | returns that, use that. */ | |
3301 | #if defined(HAVE_CANONICALIZE_FILE_NAME) | |
3302 | { | |
3303 | char *rp = canonicalize_file_name (filename); | |
5d502164 | 3304 | |
70d35819 AC |
3305 | if (rp == NULL) |
3306 | return xstrdup (filename); | |
3307 | else | |
3308 | return rp; | |
3309 | } | |
58d370e0 | 3310 | #endif |
70d35819 | 3311 | |
6411e720 AC |
3312 | /* FIXME: cagney/2002-11-13: |
3313 | ||
3314 | Method 2a: Use realpath() with a NULL buffer. Some systems, due | |
7a9dd1b2 | 3315 | to the problems described in method 3, have modified their |
6411e720 AC |
3316 | realpath() implementation so that it will allocate a buffer when |
3317 | NULL is passed in. Before this can be used, though, some sort of | |
3318 | configure time test would need to be added. Otherwize the code | |
3319 | will likely core dump. */ | |
3320 | ||
70d35819 AC |
3321 | /* Method 3: Now we're getting desperate! The system doesn't have a |
3322 | compile time buffer size and no alternative function. Query the | |
3323 | OS, using pathconf(), for the buffer limit. Care is needed | |
3324 | though, some systems do not limit PATH_MAX (return -1 for | |
3325 | pathconf()) making it impossible to pass a correctly sized buffer | |
3326 | to realpath() (it could always overflow). On those systems, we | |
3327 | skip this. */ | |
3328 | #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA) | |
3329 | { | |
3330 | /* Find out the max path size. */ | |
3331 | long path_max = pathconf ("/", _PC_PATH_MAX); | |
5d502164 | 3332 | |
70d35819 AC |
3333 | if (path_max > 0) |
3334 | { | |
3335 | /* PATH_MAX is bounded. */ | |
3336 | char *buf = alloca (path_max); | |
3337 | char *rp = realpath (filename, buf); | |
5d502164 | 3338 | |
70d35819 AC |
3339 | return xstrdup (rp ? rp : filename); |
3340 | } | |
3341 | } | |
3342 | #endif | |
3343 | ||
3344 | /* This system is a lost cause, just dup the buffer. */ | |
3345 | return xstrdup (filename); | |
58d370e0 | 3346 | } |
303c8ebd JB |
3347 | |
3348 | /* Return a copy of FILENAME, with its directory prefix canonicalized | |
3349 | by gdb_realpath. */ | |
3350 | ||
3351 | char * | |
3352 | xfullpath (const char *filename) | |
3353 | { | |
3354 | const char *base_name = lbasename (filename); | |
3355 | char *dir_name; | |
3356 | char *real_path; | |
3357 | char *result; | |
3358 | ||
3359 | /* Extract the basename of filename, and return immediately | |
581e13c1 | 3360 | a copy of filename if it does not contain any directory prefix. */ |
303c8ebd JB |
3361 | if (base_name == filename) |
3362 | return xstrdup (filename); | |
3363 | ||
3364 | dir_name = alloca ((size_t) (base_name - filename + 2)); | |
3365 | /* Allocate enough space to store the dir_name + plus one extra | |
3366 | character sometimes needed under Windows (see below), and | |
581e13c1 | 3367 | then the closing \000 character. */ |
303c8ebd JB |
3368 | strncpy (dir_name, filename, base_name - filename); |
3369 | dir_name[base_name - filename] = '\000'; | |
3370 | ||
3371 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3372 | /* We need to be careful when filename is of the form 'd:foo', which | |
3373 | is equivalent of d:./foo, which is totally different from d:/foo. */ | |
8731e58e | 3374 | if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':') |
303c8ebd JB |
3375 | { |
3376 | dir_name[2] = '.'; | |
3377 | dir_name[3] = '\000'; | |
3378 | } | |
3379 | #endif | |
3380 | ||
3381 | /* Canonicalize the directory prefix, and build the resulting | |
581e13c1 | 3382 | filename. If the dirname realpath already contains an ending |
303c8ebd JB |
3383 | directory separator, avoid doubling it. */ |
3384 | real_path = gdb_realpath (dir_name); | |
3385 | if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1])) | |
c4f7c687 | 3386 | result = concat (real_path, base_name, (char *) NULL); |
303c8ebd | 3387 | else |
c4f7c687 | 3388 | result = concat (real_path, SLASH_STRING, base_name, (char *) NULL); |
303c8ebd JB |
3389 | |
3390 | xfree (real_path); | |
3391 | return result; | |
3392 | } | |
5b5d99cf JB |
3393 | |
3394 | ||
3395 | /* This is the 32-bit CRC function used by the GNU separate debug | |
3396 | facility. An executable may contain a section named | |
3397 | .gnu_debuglink, which holds the name of a separate executable file | |
3398 | containing its debug info, and a checksum of that file's contents, | |
3399 | computed using this function. */ | |
3400 | unsigned long | |
3401 | gnu_debuglink_crc32 (unsigned long crc, unsigned char *buf, size_t len) | |
3402 | { | |
6e0a4fbc | 3403 | static const unsigned int crc32_table[256] = { |
8731e58e AC |
3404 | 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, |
3405 | 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, | |
3406 | 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, | |
3407 | 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, | |
3408 | 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, | |
3409 | 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, | |
3410 | 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, | |
3411 | 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, | |
3412 | 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, | |
3413 | 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, | |
3414 | 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, | |
3415 | 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, | |
3416 | 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, | |
3417 | 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, | |
3418 | 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, | |
3419 | 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, | |
3420 | 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, | |
3421 | 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, | |
3422 | 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, | |
3423 | 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, | |
3424 | 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, | |
3425 | 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, | |
3426 | 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, | |
3427 | 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, | |
3428 | 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, | |
3429 | 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, | |
3430 | 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, | |
3431 | 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, | |
3432 | 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, | |
3433 | 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, | |
3434 | 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, | |
3435 | 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, | |
3436 | 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, | |
3437 | 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, | |
3438 | 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, | |
3439 | 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, | |
3440 | 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, | |
3441 | 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, | |
3442 | 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, | |
3443 | 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, | |
3444 | 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, | |
3445 | 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, | |
3446 | 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, | |
3447 | 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, | |
3448 | 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, | |
3449 | 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, | |
3450 | 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, | |
3451 | 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, | |
3452 | 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, | |
3453 | 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, | |
3454 | 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, | |
3455 | 0x2d02ef8d | |
3456 | }; | |
5b5d99cf JB |
3457 | unsigned char *end; |
3458 | ||
3459 | crc = ~crc & 0xffffffff; | |
3460 | for (end = buf + len; buf < end; ++buf) | |
3461 | crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8); | |
82ae4854 | 3462 | return ~crc & 0xffffffff; |
5b5d99cf | 3463 | } |
5b03f266 AC |
3464 | |
3465 | ULONGEST | |
3466 | align_up (ULONGEST v, int n) | |
3467 | { | |
3468 | /* Check that N is really a power of two. */ | |
3469 | gdb_assert (n && (n & (n-1)) == 0); | |
3470 | return (v + n - 1) & -n; | |
3471 | } | |
3472 | ||
3473 | ULONGEST | |
3474 | align_down (ULONGEST v, int n) | |
3475 | { | |
3476 | /* Check that N is really a power of two. */ | |
3477 | gdb_assert (n && (n & (n-1)) == 0); | |
3478 | return (v & -n); | |
3479 | } | |
ae5a43e0 DJ |
3480 | |
3481 | /* Allocation function for the libiberty hash table which uses an | |
3482 | obstack. The obstack is passed as DATA. */ | |
3483 | ||
3484 | void * | |
3485 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
3486 | { | |
3487 | unsigned int total = size * count; | |
3488 | void *ptr = obstack_alloc ((struct obstack *) data, total); | |
e0627e85 | 3489 | |
ae5a43e0 DJ |
3490 | memset (ptr, 0, total); |
3491 | return ptr; | |
3492 | } | |
3493 | ||
3494 | /* Trivial deallocation function for the libiberty splay tree and hash | |
3495 | table - don't deallocate anything. Rely on later deletion of the | |
3496 | obstack. DATA will be the obstack, although it is not needed | |
3497 | here. */ | |
3498 | ||
3499 | void | |
3500 | dummy_obstack_deallocate (void *object, void *data) | |
3501 | { | |
3502 | return; | |
3503 | } | |
253c8abb DJ |
3504 | |
3505 | /* The bit offset of the highest byte in a ULONGEST, for overflow | |
3506 | checking. */ | |
3507 | ||
3508 | #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT) | |
3509 | ||
3510 | /* True (non-zero) iff DIGIT is a valid digit in radix BASE, | |
3511 | where 2 <= BASE <= 36. */ | |
3512 | ||
3513 | static int | |
3514 | is_digit_in_base (unsigned char digit, int base) | |
3515 | { | |
3516 | if (!isalnum (digit)) | |
3517 | return 0; | |
3518 | if (base <= 10) | |
3519 | return (isdigit (digit) && digit < base + '0'); | |
3520 | else | |
3521 | return (isdigit (digit) || tolower (digit) < base - 10 + 'a'); | |
3522 | } | |
3523 | ||
3524 | static int | |
3525 | digit_to_int (unsigned char c) | |
3526 | { | |
3527 | if (isdigit (c)) | |
3528 | return c - '0'; | |
3529 | else | |
3530 | return tolower (c) - 'a' + 10; | |
3531 | } | |
3532 | ||
3533 | /* As for strtoul, but for ULONGEST results. */ | |
3534 | ||
3535 | ULONGEST | |
3536 | strtoulst (const char *num, const char **trailer, int base) | |
3537 | { | |
3538 | unsigned int high_part; | |
3539 | ULONGEST result; | |
3540 | int minus = 0; | |
3541 | int i = 0; | |
3542 | ||
3543 | /* Skip leading whitespace. */ | |
3544 | while (isspace (num[i])) | |
3545 | i++; | |
3546 | ||
3547 | /* Handle prefixes. */ | |
3548 | if (num[i] == '+') | |
3549 | i++; | |
3550 | else if (num[i] == '-') | |
3551 | { | |
3552 | minus = 1; | |
3553 | i++; | |
3554 | } | |
3555 | ||
3556 | if (base == 0 || base == 16) | |
3557 | { | |
3558 | if (num[i] == '0' && (num[i + 1] == 'x' || num[i + 1] == 'X')) | |
3559 | { | |
3560 | i += 2; | |
3561 | if (base == 0) | |
3562 | base = 16; | |
3563 | } | |
3564 | } | |
3565 | ||
3566 | if (base == 0 && num[i] == '0') | |
3567 | base = 8; | |
3568 | ||
3569 | if (base == 0) | |
3570 | base = 10; | |
3571 | ||
3572 | if (base < 2 || base > 36) | |
3573 | { | |
3574 | errno = EINVAL; | |
3575 | return 0; | |
3576 | } | |
3577 | ||
3578 | result = high_part = 0; | |
3579 | for (; is_digit_in_base (num[i], base); i += 1) | |
3580 | { | |
3581 | result = result * base + digit_to_int (num[i]); | |
3582 | high_part = high_part * base + (unsigned int) (result >> HIGH_BYTE_POSN); | |
3583 | result &= ((ULONGEST) 1 << HIGH_BYTE_POSN) - 1; | |
3584 | if (high_part > 0xff) | |
3585 | { | |
3586 | errno = ERANGE; | |
3587 | result = ~ (ULONGEST) 0; | |
3588 | high_part = 0; | |
3589 | minus = 0; | |
3590 | break; | |
3591 | } | |
3592 | } | |
3593 | ||
3594 | if (trailer != NULL) | |
3595 | *trailer = &num[i]; | |
3596 | ||
3597 | result = result + ((ULONGEST) high_part << HIGH_BYTE_POSN); | |
3598 | if (minus) | |
3599 | return -result; | |
3600 | else | |
3601 | return result; | |
3602 | } | |
e1024ff1 DJ |
3603 | |
3604 | /* Simple, portable version of dirname that does not modify its | |
3605 | argument. */ | |
3606 | ||
3607 | char * | |
3608 | ldirname (const char *filename) | |
3609 | { | |
3610 | const char *base = lbasename (filename); | |
3611 | char *dirname; | |
3612 | ||
3613 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
3614 | --base; | |
3615 | ||
3616 | if (base == filename) | |
3617 | return NULL; | |
3618 | ||
3619 | dirname = xmalloc (base - filename + 2); | |
3620 | memcpy (dirname, filename, base - filename); | |
3621 | ||
3622 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
3623 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
3624 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
3625 | && !IS_DIR_SEPARATOR (filename[0])) | |
3626 | dirname[base++ - filename] = '.'; | |
3627 | ||
3628 | dirname[base - filename] = '\0'; | |
3629 | return dirname; | |
3630 | } | |
d1a41061 PP |
3631 | |
3632 | /* Call libiberty's buildargv, and return the result. | |
3633 | If buildargv fails due to out-of-memory, call nomem. | |
3634 | Therefore, the returned value is guaranteed to be non-NULL, | |
3635 | unless the parameter itself is NULL. */ | |
3636 | ||
3637 | char ** | |
3638 | gdb_buildargv (const char *s) | |
3639 | { | |
3640 | char **argv = buildargv (s); | |
e0627e85 | 3641 | |
d1a41061 | 3642 | if (s != NULL && argv == NULL) |
d26e3629 | 3643 | malloc_failure (0); |
d1a41061 PP |
3644 | return argv; |
3645 | } | |
3c16cced | 3646 | |
dc146f7c VP |
3647 | int |
3648 | compare_positive_ints (const void *ap, const void *bp) | |
3649 | { | |
3650 | /* Because we know we're comparing two ints which are positive, | |
3651 | there's no danger of overflow here. */ | |
3652 | return * (int *) ap - * (int *) bp; | |
3653 | } | |
3654 | ||
f8eba3c6 TT |
3655 | /* String compare function for qsort. */ |
3656 | ||
3657 | int | |
3658 | compare_strings (const void *arg1, const void *arg2) | |
3659 | { | |
3660 | const char **s1 = (const char **) arg1; | |
3661 | const char **s2 = (const char **) arg2; | |
3662 | ||
3663 | return strcmp (*s1, *s2); | |
3664 | } | |
3665 | ||
d18b8b7a | 3666 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3e43a32a MS |
3667 | #define AMBIGUOUS_MESS2 \ |
3668 | ".\nUse \"set gnutarget format-name\" to specify the format." | |
d18b8b7a HZ |
3669 | |
3670 | const char * | |
3671 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) | |
3672 | { | |
3673 | char *ret, *retp; | |
3674 | int ret_len; | |
3675 | char **p; | |
3676 | ||
3677 | /* Check if errmsg just need simple return. */ | |
3678 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
3679 | return bfd_errmsg (error_tag); | |
3680 | ||
3681 | ret_len = strlen (bfd_errmsg (error_tag)) + strlen (AMBIGUOUS_MESS1) | |
3682 | + strlen (AMBIGUOUS_MESS2); | |
3683 | for (p = matching; *p; p++) | |
3684 | ret_len += strlen (*p) + 1; | |
3685 | ret = xmalloc (ret_len + 1); | |
3686 | retp = ret; | |
3687 | make_cleanup (xfree, ret); | |
3688 | ||
3689 | strcpy (retp, bfd_errmsg (error_tag)); | |
3690 | retp += strlen (retp); | |
3691 | ||
3692 | strcpy (retp, AMBIGUOUS_MESS1); | |
3693 | retp += strlen (retp); | |
3694 | ||
3695 | for (p = matching; *p; p++) | |
3696 | { | |
3697 | sprintf (retp, " %s", *p); | |
3698 | retp += strlen (retp); | |
3699 | } | |
3700 | xfree (matching); | |
3701 | ||
3702 | strcpy (retp, AMBIGUOUS_MESS2); | |
3703 | ||
3704 | return ret; | |
3705 | } | |
3706 | ||
74164c56 JK |
3707 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
3708 | ||
3709 | int | |
3710 | parse_pid_to_attach (char *args) | |
3711 | { | |
3712 | unsigned long pid; | |
3713 | char *dummy; | |
3714 | ||
3715 | if (!args) | |
3716 | error_no_arg (_("process-id to attach")); | |
3717 | ||
3718 | dummy = args; | |
3719 | pid = strtoul (args, &dummy, 0); | |
3720 | /* Some targets don't set errno on errors, grrr! */ | |
3721 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
3722 | error (_("Illegal process-id: %s."), args); | |
3723 | ||
3724 | return pid; | |
3725 | } | |
3726 | ||
353d1d73 JK |
3727 | /* Helper for make_bpstat_clear_actions_cleanup. */ |
3728 | ||
3729 | static void | |
3730 | do_bpstat_clear_actions_cleanup (void *unused) | |
3731 | { | |
3732 | bpstat_clear_actions (); | |
3733 | } | |
3734 | ||
3735 | /* Call bpstat_clear_actions for the case an exception is throw. You should | |
3736 | discard_cleanups if no exception is caught. */ | |
3737 | ||
3738 | struct cleanup * | |
3739 | make_bpstat_clear_actions_cleanup (void) | |
3740 | { | |
3741 | return make_cleanup (do_bpstat_clear_actions_cleanup, NULL); | |
3742 | } | |
3743 | ||
df15bd07 JK |
3744 | /* Check for GCC >= 4.x according to the symtab->producer string. Return minor |
3745 | version (x) of 4.x in such case. If it is not GCC or it is GCC older than | |
3746 | 4.x return -1. If it is GCC 5.x or higher return INT_MAX. */ | |
3747 | ||
3748 | int | |
3749 | producer_is_gcc_ge_4 (const char *producer) | |
3750 | { | |
3751 | const char *cs; | |
3752 | int major, minor; | |
3753 | ||
3754 | if (producer == NULL) | |
3755 | { | |
3756 | /* For unknown compilers expect their behavior is not compliant. For GCC | |
3757 | this case can also happen for -gdwarf-4 type units supported since | |
3758 | gcc-4.5. */ | |
3759 | ||
3760 | return -1; | |
3761 | } | |
3762 | ||
3763 | /* Skip any identifier after "GNU " - such as "C++" or "Java". */ | |
3764 | ||
3765 | if (strncmp (producer, "GNU ", strlen ("GNU ")) != 0) | |
3766 | { | |
3767 | /* For non-GCC compilers expect their behavior is not compliant. */ | |
3768 | ||
3769 | return -1; | |
3770 | } | |
3771 | cs = &producer[strlen ("GNU ")]; | |
3772 | while (*cs && !isdigit (*cs)) | |
3773 | cs++; | |
3774 | if (sscanf (cs, "%d.%d", &major, &minor) != 2) | |
3775 | { | |
3776 | /* Not recognized as GCC. */ | |
3777 | ||
3778 | return -1; | |
3779 | } | |
3780 | ||
3781 | if (major < 4) | |
3782 | return -1; | |
3783 | if (major > 4) | |
3784 | return INT_MAX; | |
3785 | return minor; | |
3786 | } | |
3787 | ||
0b6cb71e DE |
3788 | #ifdef HAVE_WAITPID |
3789 | ||
3790 | #ifdef SIGALRM | |
3791 | ||
3792 | /* SIGALRM handler for waitpid_with_timeout. */ | |
3793 | ||
3794 | static void | |
3795 | sigalrm_handler (int signo) | |
3796 | { | |
3797 | /* Nothing to do. */ | |
3798 | } | |
3799 | ||
3800 | #endif | |
3801 | ||
3802 | /* Wrapper to wait for child PID to die with TIMEOUT. | |
3803 | TIMEOUT is the time to stop waiting in seconds. | |
3804 | If TIMEOUT is zero, pass WNOHANG to waitpid. | |
3805 | Returns PID if it was successfully waited for, otherwise -1. | |
3806 | ||
3807 | Timeouts are currently implemented with alarm and SIGALRM. | |
3808 | If the host does not support them, this waits "forever". | |
3809 | It would be odd though for a host to have waitpid and not SIGALRM. */ | |
3810 | ||
3811 | pid_t | |
3812 | wait_to_die_with_timeout (pid_t pid, int *status, int timeout) | |
3813 | { | |
3814 | pid_t waitpid_result; | |
3815 | ||
3816 | gdb_assert (pid > 0); | |
3817 | gdb_assert (timeout >= 0); | |
3818 | ||
3819 | if (timeout > 0) | |
3820 | { | |
3821 | #ifdef SIGALRM | |
3822 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3823 | struct sigaction sa, old_sa; | |
3824 | ||
3825 | sa.sa_handler = sigalrm_handler; | |
3826 | sigemptyset (&sa.sa_mask); | |
3827 | sa.sa_flags = 0; | |
3828 | sigaction (SIGALRM, &sa, &old_sa); | |
3829 | #else | |
3830 | void (*ofunc) (); | |
3831 | ||
3832 | ofunc = (void (*)()) signal (SIGALRM, sigalrm_handler); | |
3833 | #endif | |
3834 | ||
3835 | alarm (timeout); | |
3836 | #endif | |
3837 | ||
3838 | waitpid_result = waitpid (pid, status, 0); | |
3839 | ||
3840 | #ifdef SIGALRM | |
3841 | alarm (0); | |
3842 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3843 | sigaction (SIGALRM, &old_sa, NULL); | |
3844 | #else | |
3845 | signal (SIGALRM, ofunc); | |
3846 | #endif | |
3847 | #endif | |
3848 | } | |
3849 | else | |
3850 | waitpid_result = waitpid (pid, status, WNOHANG); | |
3851 | ||
3852 | if (waitpid_result == pid) | |
3853 | return pid; | |
3854 | else | |
3855 | return -1; | |
3856 | } | |
3857 | ||
3858 | #endif /* HAVE_WAITPID */ | |
3859 | ||
2c0b251b PA |
3860 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
3861 | extern initialize_file_ftype _initialize_utils; | |
3862 | ||
3c16cced PA |
3863 | void |
3864 | _initialize_utils (void) | |
3865 | { | |
3866 | add_internal_problem_command (&internal_error_problem); | |
3867 | add_internal_problem_command (&internal_warning_problem); | |
3868 | } |