Commit | Line | Data |
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c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
1bac305b | 2 | |
c5a57081 | 3 | Copyright (C) 1986, 1988-2012 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c | 19 | |
4e8f7a8b | 20 | #include "defs.h" |
5a56e9c5 | 21 | #include "dyn-string.h" |
4e8f7a8b DJ |
22 | #include "gdb_assert.h" |
23 | #include <ctype.h> | |
24 | #include "gdb_string.h" | |
0b6cb71e | 25 | #include "gdb_wait.h" |
4e8f7a8b | 26 | #include "event-top.h" |
60250e8b | 27 | #include "exceptions.h" |
95e54da7 | 28 | #include "gdbthread.h" |
7991dee7 JK |
29 | #ifdef HAVE_SYS_RESOURCE_H |
30 | #include <sys/resource.h> | |
31 | #endif /* HAVE_SYS_RESOURCE_H */ | |
4e8f7a8b | 32 | |
6a83354a AC |
33 | #ifdef TUI |
34 | #include "tui/tui.h" /* For tui_get_command_dimension. */ | |
35 | #endif | |
36 | ||
9d271fd8 AC |
37 | #ifdef __GO32__ |
38 | #include <pc.h> | |
39 | #endif | |
40 | ||
581e13c1 | 41 | /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */ |
c906108c SS |
42 | #ifdef reg |
43 | #undef reg | |
44 | #endif | |
45 | ||
042be3a9 | 46 | #include <signal.h> |
0a1c4d10 | 47 | #include "timeval-utils.h" |
c906108c SS |
48 | #include "gdbcmd.h" |
49 | #include "serial.h" | |
50 | #include "bfd.h" | |
51 | #include "target.h" | |
50f182aa | 52 | #include "gdb-demangle.h" |
c906108c SS |
53 | #include "expression.h" |
54 | #include "language.h" | |
234b45d4 | 55 | #include "charset.h" |
c906108c | 56 | #include "annotate.h" |
303c8ebd | 57 | #include "filenames.h" |
7b90c3f9 | 58 | #include "symfile.h" |
ae5a43e0 | 59 | #include "gdb_obstack.h" |
9544c605 | 60 | #include "gdbcore.h" |
698ba934 | 61 | #include "top.h" |
7c953934 | 62 | #include "main.h" |
cb08cc53 | 63 | #include "solist.h" |
c906108c | 64 | |
8731e58e | 65 | #include "inferior.h" /* for signed_pointer_to_address */ |
ac2e2ef7 | 66 | |
2d1b2124 AC |
67 | #include <sys/param.h> /* For MAXPATHLEN */ |
68 | ||
3b78cdbb | 69 | #include "gdb_curses.h" |
020cc13c | 70 | |
dbda9972 | 71 | #include "readline/readline.h" |
c906108c | 72 | |
75feb17d DJ |
73 | #include <sys/time.h> |
74 | #include <time.h> | |
75 | ||
8626589c | 76 | #include "gdb_usleep.h" |
390a8aca | 77 | #include "interps.h" |
dc92e161 | 78 | #include "gdb_regex.h" |
8626589c | 79 | |
a3828db0 | 80 | #if !HAVE_DECL_MALLOC |
5ac79d78 | 81 | extern PTR malloc (); /* ARI: PTR */ |
3c37485b | 82 | #endif |
a3828db0 | 83 | #if !HAVE_DECL_REALLOC |
5ac79d78 | 84 | extern PTR realloc (); /* ARI: PTR */ |
0e52036f | 85 | #endif |
a3828db0 | 86 | #if !HAVE_DECL_FREE |
81b8eb80 AC |
87 | extern void free (); |
88 | #endif | |
81b8eb80 | 89 | |
c906108c SS |
90 | /* readline defines this. */ |
91 | #undef savestring | |
92 | ||
9a4105ab | 93 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
94 | |
95 | /* Prototypes for local functions */ | |
96 | ||
d9fcf2fb | 97 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
a0b31db1 | 98 | va_list, int) ATTRIBUTE_PRINTF (2, 0); |
c906108c | 99 | |
d9fcf2fb | 100 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 101 | |
e42c9534 AC |
102 | static void do_my_cleanups (struct cleanup **, struct cleanup *); |
103 | ||
a14ed312 | 104 | static void prompt_for_continue (void); |
c906108c | 105 | |
eb0d3137 | 106 | static void set_screen_size (void); |
a14ed312 | 107 | static void set_width (void); |
c906108c | 108 | |
75feb17d DJ |
109 | /* A flag indicating whether to timestamp debugging messages. */ |
110 | ||
111 | static int debug_timestamp = 0; | |
112 | ||
c906108c SS |
113 | /* Chain of cleanup actions established with make_cleanup, |
114 | to be executed if an error happens. */ | |
115 | ||
c5aa993b JM |
116 | static struct cleanup *cleanup_chain; /* cleaned up after a failed command */ |
117 | static struct cleanup *final_cleanup_chain; /* cleaned up when gdb exits */ | |
43ff13b4 | 118 | |
581e13c1 | 119 | /* Nonzero if we have job control. */ |
c906108c SS |
120 | |
121 | int job_control; | |
122 | ||
123 | /* Nonzero means a quit has been requested. */ | |
124 | ||
125 | int quit_flag; | |
126 | ||
127 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
128 | than waiting until QUIT is executed. Be careful in setting this; | |
129 | code which executes with immediate_quit set has to be very careful | |
130 | about being able to deal with being interrupted at any time. It is | |
131 | almost always better to use QUIT; the only exception I can think of | |
132 | is being able to quit out of a system call (using EINTR loses if | |
133 | the SIGINT happens between the previous QUIT and the system call). | |
134 | To immediately quit in the case in which a SIGINT happens between | |
135 | the previous QUIT and setting immediate_quit (desirable anytime we | |
136 | expect to block), call QUIT after setting immediate_quit. */ | |
137 | ||
138 | int immediate_quit; | |
139 | ||
c906108c SS |
140 | /* Nonzero means that strings with character values >0x7F should be printed |
141 | as octal escapes. Zero means just print the value (e.g. it's an | |
142 | international character, and the terminal or window can cope.) */ | |
143 | ||
144 | int sevenbit_strings = 0; | |
920d2a44 AC |
145 | static void |
146 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
147 | struct cmd_list_element *c, const char *value) | |
148 | { | |
3e43a32a MS |
149 | fprintf_filtered (file, _("Printing of 8-bit characters " |
150 | "in strings as \\nnn is %s.\n"), | |
920d2a44 AC |
151 | value); |
152 | } | |
c906108c SS |
153 | |
154 | /* String to be printed before error messages, if any. */ | |
155 | ||
156 | char *error_pre_print; | |
157 | ||
158 | /* String to be printed before quit messages, if any. */ | |
159 | ||
160 | char *quit_pre_print; | |
161 | ||
162 | /* String to be printed before warning messages, if any. */ | |
163 | ||
164 | char *warning_pre_print = "\nwarning: "; | |
165 | ||
166 | int pagination_enabled = 1; | |
920d2a44 AC |
167 | static void |
168 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
169 | struct cmd_list_element *c, const char *value) | |
170 | { | |
171 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
172 | } | |
173 | ||
c906108c | 174 | \f |
c5aa993b | 175 | |
c906108c SS |
176 | /* Add a new cleanup to the cleanup_chain, |
177 | and return the previous chain pointer | |
178 | to be passed later to do_cleanups or discard_cleanups. | |
179 | Args are FUNCTION to clean up with, and ARG to pass to it. */ | |
180 | ||
181 | struct cleanup * | |
e4005526 | 182 | make_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 183 | { |
c5aa993b | 184 | return make_my_cleanup (&cleanup_chain, function, arg); |
c906108c SS |
185 | } |
186 | ||
4f8d22e3 PA |
187 | struct cleanup * |
188 | make_cleanup_dtor (make_cleanup_ftype *function, void *arg, | |
189 | void (*dtor) (void *)) | |
190 | { | |
191 | return make_my_cleanup2 (&cleanup_chain, | |
192 | function, arg, dtor); | |
193 | } | |
194 | ||
c906108c | 195 | struct cleanup * |
e4005526 | 196 | make_final_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 197 | { |
c5aa993b | 198 | return make_my_cleanup (&final_cleanup_chain, function, arg); |
c906108c | 199 | } |
7a292a7a | 200 | |
7a292a7a | 201 | static void |
fba45db2 | 202 | do_freeargv (void *arg) |
7a292a7a | 203 | { |
c5aa993b | 204 | freeargv ((char **) arg); |
7a292a7a SS |
205 | } |
206 | ||
207 | struct cleanup * | |
fba45db2 | 208 | make_cleanup_freeargv (char **arg) |
7a292a7a SS |
209 | { |
210 | return make_my_cleanup (&cleanup_chain, do_freeargv, arg); | |
211 | } | |
212 | ||
5a56e9c5 DE |
213 | static void |
214 | do_dyn_string_delete (void *arg) | |
215 | { | |
216 | dyn_string_delete ((dyn_string_t) arg); | |
217 | } | |
218 | ||
219 | struct cleanup * | |
220 | make_cleanup_dyn_string_delete (dyn_string_t arg) | |
221 | { | |
222 | return make_my_cleanup (&cleanup_chain, do_dyn_string_delete, arg); | |
223 | } | |
224 | ||
5c65bbb6 AC |
225 | static void |
226 | do_bfd_close_cleanup (void *arg) | |
227 | { | |
228 | bfd_close (arg); | |
229 | } | |
230 | ||
231 | struct cleanup * | |
232 | make_cleanup_bfd_close (bfd *abfd) | |
233 | { | |
234 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
235 | } | |
236 | ||
f5ff8c83 AC |
237 | static void |
238 | do_close_cleanup (void *arg) | |
239 | { | |
f042532c | 240 | int *fd = arg; |
e0627e85 | 241 | |
f042532c | 242 | close (*fd); |
f5ff8c83 AC |
243 | } |
244 | ||
245 | struct cleanup * | |
246 | make_cleanup_close (int fd) | |
247 | { | |
f042532c | 248 | int *saved_fd = xmalloc (sizeof (fd)); |
e0627e85 | 249 | |
f042532c | 250 | *saved_fd = fd; |
a05016c0 | 251 | return make_cleanup_dtor (do_close_cleanup, saved_fd, xfree); |
f5ff8c83 AC |
252 | } |
253 | ||
7c8a8b04 TT |
254 | /* Helper function which does the work for make_cleanup_fclose. */ |
255 | ||
256 | static void | |
257 | do_fclose_cleanup (void *arg) | |
258 | { | |
c02866a0 | 259 | FILE *file = arg; |
e0627e85 | 260 | |
c02866a0 | 261 | fclose (file); |
7c8a8b04 TT |
262 | } |
263 | ||
264 | /* Return a new cleanup that closes FILE. */ | |
265 | ||
266 | struct cleanup * | |
267 | make_cleanup_fclose (FILE *file) | |
268 | { | |
269 | return make_cleanup (do_fclose_cleanup, file); | |
270 | } | |
271 | ||
16ad9370 TT |
272 | /* Helper function which does the work for make_cleanup_obstack_free. */ |
273 | ||
274 | static void | |
275 | do_obstack_free (void *arg) | |
276 | { | |
277 | struct obstack *ob = arg; | |
e0627e85 | 278 | |
16ad9370 TT |
279 | obstack_free (ob, NULL); |
280 | } | |
281 | ||
282 | /* Return a new cleanup that frees OBSTACK. */ | |
283 | ||
284 | struct cleanup * | |
285 | make_cleanup_obstack_free (struct obstack *obstack) | |
286 | { | |
287 | return make_cleanup (do_obstack_free, obstack); | |
288 | } | |
289 | ||
11cf8741 | 290 | static void |
d9fcf2fb | 291 | do_ui_file_delete (void *arg) |
11cf8741 | 292 | { |
d9fcf2fb | 293 | ui_file_delete (arg); |
11cf8741 JM |
294 | } |
295 | ||
296 | struct cleanup * | |
d9fcf2fb | 297 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 298 | { |
d9fcf2fb | 299 | return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg); |
11cf8741 JM |
300 | } |
301 | ||
8d4d924b JK |
302 | /* Helper function for make_cleanup_ui_out_redirect_pop. */ |
303 | ||
304 | static void | |
305 | do_ui_out_redirect_pop (void *arg) | |
306 | { | |
307 | struct ui_out *uiout = arg; | |
308 | ||
309 | if (ui_out_redirect (uiout, NULL) < 0) | |
310 | warning (_("Cannot restore redirection of the current output protocol")); | |
311 | } | |
312 | ||
313 | /* Return a new cleanup that pops the last redirection by ui_out_redirect | |
314 | with NULL parameter. */ | |
315 | ||
316 | struct cleanup * | |
317 | make_cleanup_ui_out_redirect_pop (struct ui_out *uiout) | |
318 | { | |
319 | return make_my_cleanup (&cleanup_chain, do_ui_out_redirect_pop, uiout); | |
320 | } | |
321 | ||
7b90c3f9 JB |
322 | static void |
323 | do_free_section_addr_info (void *arg) | |
324 | { | |
325 | free_section_addr_info (arg); | |
326 | } | |
327 | ||
328 | struct cleanup * | |
329 | make_cleanup_free_section_addr_info (struct section_addr_info *addrs) | |
330 | { | |
331 | return make_my_cleanup (&cleanup_chain, do_free_section_addr_info, addrs); | |
332 | } | |
333 | ||
0b080f59 VP |
334 | struct restore_integer_closure |
335 | { | |
336 | int *variable; | |
337 | int value; | |
338 | }; | |
339 | ||
340 | static void | |
341 | restore_integer (void *p) | |
342 | { | |
343 | struct restore_integer_closure *closure = p; | |
e0627e85 | 344 | |
0b080f59 VP |
345 | *(closure->variable) = closure->value; |
346 | } | |
7b90c3f9 | 347 | |
3e43a32a MS |
348 | /* Remember the current value of *VARIABLE and make it restored when |
349 | the cleanup is run. */ | |
5da1313b | 350 | |
c906108c | 351 | struct cleanup * |
0b080f59 VP |
352 | make_cleanup_restore_integer (int *variable) |
353 | { | |
354 | struct restore_integer_closure *c = | |
355 | xmalloc (sizeof (struct restore_integer_closure)); | |
e0627e85 | 356 | |
0b080f59 VP |
357 | c->variable = variable; |
358 | c->value = *variable; | |
359 | ||
360 | return make_my_cleanup2 (&cleanup_chain, restore_integer, (void *)c, | |
361 | xfree); | |
362 | } | |
363 | ||
3e43a32a MS |
364 | /* Remember the current value of *VARIABLE and make it restored when |
365 | the cleanup is run. */ | |
5da1313b JK |
366 | |
367 | struct cleanup * | |
368 | make_cleanup_restore_uinteger (unsigned int *variable) | |
369 | { | |
370 | return make_cleanup_restore_integer ((int *) variable); | |
371 | } | |
372 | ||
c0edd9ed JK |
373 | /* Helper for make_cleanup_unpush_target. */ |
374 | ||
375 | static void | |
376 | do_unpush_target (void *arg) | |
377 | { | |
378 | struct target_ops *ops = arg; | |
379 | ||
380 | unpush_target (ops); | |
381 | } | |
382 | ||
383 | /* Return a new cleanup that unpushes OPS. */ | |
384 | ||
385 | struct cleanup * | |
386 | make_cleanup_unpush_target (struct target_ops *ops) | |
387 | { | |
388 | return make_my_cleanup (&cleanup_chain, do_unpush_target, ops); | |
389 | } | |
390 | ||
8e3b41a9 JK |
391 | /* Helper for make_cleanup_htab_delete compile time checking the types. */ |
392 | ||
393 | static void | |
394 | do_htab_delete_cleanup (void *htab_voidp) | |
395 | { | |
396 | htab_t htab = htab_voidp; | |
397 | ||
398 | htab_delete (htab); | |
399 | } | |
400 | ||
401 | /* Return a new cleanup that deletes HTAB. */ | |
402 | ||
403 | struct cleanup * | |
404 | make_cleanup_htab_delete (htab_t htab) | |
405 | { | |
406 | return make_cleanup (do_htab_delete_cleanup, htab); | |
407 | } | |
408 | ||
5da1313b JK |
409 | struct restore_ui_file_closure |
410 | { | |
411 | struct ui_file **variable; | |
412 | struct ui_file *value; | |
413 | }; | |
414 | ||
415 | static void | |
416 | do_restore_ui_file (void *p) | |
417 | { | |
418 | struct restore_ui_file_closure *closure = p; | |
419 | ||
420 | *(closure->variable) = closure->value; | |
421 | } | |
422 | ||
423 | /* Remember the current value of *VARIABLE and make it restored when | |
424 | the cleanup is run. */ | |
425 | ||
426 | struct cleanup * | |
427 | make_cleanup_restore_ui_file (struct ui_file **variable) | |
428 | { | |
429 | struct restore_ui_file_closure *c = XNEW (struct restore_ui_file_closure); | |
430 | ||
431 | c->variable = variable; | |
432 | c->value = *variable; | |
433 | ||
434 | return make_cleanup_dtor (do_restore_ui_file, (void *) c, xfree); | |
435 | } | |
436 | ||
028d0ed5 TJB |
437 | /* Helper for make_cleanup_value_free_to_mark. */ |
438 | ||
439 | static void | |
440 | do_value_free_to_mark (void *value) | |
441 | { | |
442 | value_free_to_mark ((struct value *) value); | |
443 | } | |
444 | ||
445 | /* Free all values allocated since MARK was obtained by value_mark | |
446 | (except for those released) when the cleanup is run. */ | |
447 | ||
448 | struct cleanup * | |
449 | make_cleanup_value_free_to_mark (struct value *mark) | |
450 | { | |
451 | return make_my_cleanup (&cleanup_chain, do_value_free_to_mark, mark); | |
452 | } | |
453 | ||
72fc29ff TT |
454 | /* Helper for make_cleanup_value_free. */ |
455 | ||
456 | static void | |
457 | do_value_free (void *value) | |
458 | { | |
459 | value_free (value); | |
460 | } | |
461 | ||
462 | /* Free VALUE. */ | |
463 | ||
464 | struct cleanup * | |
465 | make_cleanup_value_free (struct value *value) | |
466 | { | |
467 | return make_my_cleanup (&cleanup_chain, do_value_free, value); | |
468 | } | |
469 | ||
cb08cc53 JK |
470 | /* Helper for make_cleanup_free_so. */ |
471 | ||
472 | static void | |
473 | do_free_so (void *arg) | |
474 | { | |
475 | struct so_list *so = arg; | |
476 | ||
477 | free_so (so); | |
478 | } | |
479 | ||
480 | /* Make cleanup handler calling free_so for SO. */ | |
481 | ||
482 | struct cleanup * | |
483 | make_cleanup_free_so (struct so_list *so) | |
484 | { | |
485 | return make_my_cleanup (&cleanup_chain, do_free_so, so); | |
486 | } | |
487 | ||
0b080f59 VP |
488 | struct cleanup * |
489 | make_my_cleanup2 (struct cleanup **pmy_chain, make_cleanup_ftype *function, | |
490 | void *arg, void (*free_arg) (void *)) | |
c906108c | 491 | { |
52f0bd74 | 492 | struct cleanup *new |
8731e58e | 493 | = (struct cleanup *) xmalloc (sizeof (struct cleanup)); |
52f0bd74 | 494 | struct cleanup *old_chain = *pmy_chain; |
c906108c SS |
495 | |
496 | new->next = *pmy_chain; | |
497 | new->function = function; | |
0b080f59 | 498 | new->free_arg = free_arg; |
c906108c SS |
499 | new->arg = arg; |
500 | *pmy_chain = new; | |
501 | ||
502 | return old_chain; | |
503 | } | |
504 | ||
0b080f59 VP |
505 | struct cleanup * |
506 | make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function, | |
507 | void *arg) | |
508 | { | |
509 | return make_my_cleanup2 (pmy_chain, function, arg, NULL); | |
510 | } | |
511 | ||
c906108c SS |
512 | /* Discard cleanups and do the actions they describe |
513 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
514 | ||
515 | void | |
aa1ee363 | 516 | do_cleanups (struct cleanup *old_chain) |
c906108c | 517 | { |
c5aa993b | 518 | do_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
519 | } |
520 | ||
521 | void | |
aa1ee363 | 522 | do_final_cleanups (struct cleanup *old_chain) |
c906108c | 523 | { |
c5aa993b | 524 | do_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
525 | } |
526 | ||
e42c9534 | 527 | static void |
aa1ee363 AC |
528 | do_my_cleanups (struct cleanup **pmy_chain, |
529 | struct cleanup *old_chain) | |
c906108c | 530 | { |
52f0bd74 | 531 | struct cleanup *ptr; |
e0627e85 | 532 | |
c906108c SS |
533 | while ((ptr = *pmy_chain) != old_chain) |
534 | { | |
5f2302ab | 535 | *pmy_chain = ptr->next; /* Do this first in case of recursion. */ |
c906108c | 536 | (*ptr->function) (ptr->arg); |
0b080f59 VP |
537 | if (ptr->free_arg) |
538 | (*ptr->free_arg) (ptr->arg); | |
b8c9b27d | 539 | xfree (ptr); |
c906108c SS |
540 | } |
541 | } | |
542 | ||
543 | /* Discard cleanups, not doing the actions they describe, | |
544 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
545 | ||
546 | void | |
aa1ee363 | 547 | discard_cleanups (struct cleanup *old_chain) |
c906108c | 548 | { |
c5aa993b | 549 | discard_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
550 | } |
551 | ||
552 | void | |
aa1ee363 | 553 | discard_final_cleanups (struct cleanup *old_chain) |
c906108c | 554 | { |
c5aa993b | 555 | discard_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
556 | } |
557 | ||
558 | void | |
aa1ee363 AC |
559 | discard_my_cleanups (struct cleanup **pmy_chain, |
560 | struct cleanup *old_chain) | |
c906108c | 561 | { |
52f0bd74 | 562 | struct cleanup *ptr; |
e0627e85 | 563 | |
c906108c SS |
564 | while ((ptr = *pmy_chain) != old_chain) |
565 | { | |
566 | *pmy_chain = ptr->next; | |
0b080f59 VP |
567 | if (ptr->free_arg) |
568 | (*ptr->free_arg) (ptr->arg); | |
b8c9b27d | 569 | xfree (ptr); |
c906108c SS |
570 | } |
571 | } | |
572 | ||
573 | /* Set the cleanup_chain to 0, and return the old cleanup chain. */ | |
574 | struct cleanup * | |
fba45db2 | 575 | save_cleanups (void) |
c906108c | 576 | { |
c5aa993b | 577 | return save_my_cleanups (&cleanup_chain); |
c906108c SS |
578 | } |
579 | ||
580 | struct cleanup * | |
fba45db2 | 581 | save_final_cleanups (void) |
c906108c | 582 | { |
c5aa993b | 583 | return save_my_cleanups (&final_cleanup_chain); |
c906108c SS |
584 | } |
585 | ||
586 | struct cleanup * | |
fba45db2 | 587 | save_my_cleanups (struct cleanup **pmy_chain) |
c906108c SS |
588 | { |
589 | struct cleanup *old_chain = *pmy_chain; | |
590 | ||
591 | *pmy_chain = 0; | |
592 | return old_chain; | |
593 | } | |
594 | ||
595 | /* Restore the cleanup chain from a previously saved chain. */ | |
596 | void | |
fba45db2 | 597 | restore_cleanups (struct cleanup *chain) |
c906108c | 598 | { |
c5aa993b | 599 | restore_my_cleanups (&cleanup_chain, chain); |
c906108c SS |
600 | } |
601 | ||
602 | void | |
fba45db2 | 603 | restore_final_cleanups (struct cleanup *chain) |
c906108c | 604 | { |
c5aa993b | 605 | restore_my_cleanups (&final_cleanup_chain, chain); |
c906108c SS |
606 | } |
607 | ||
608 | void | |
fba45db2 | 609 | restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain) |
c906108c SS |
610 | { |
611 | *pmy_chain = chain; | |
612 | } | |
613 | ||
614 | /* This function is useful for cleanups. | |
615 | Do | |
616 | ||
c5aa993b JM |
617 | foo = xmalloc (...); |
618 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
619 | |
620 | to arrange to free the object thus allocated. */ | |
621 | ||
622 | void | |
2f9429ae | 623 | free_current_contents (void *ptr) |
c906108c | 624 | { |
2f9429ae | 625 | void **location = ptr; |
e0627e85 | 626 | |
e2f9c474 | 627 | if (location == NULL) |
8e65ff28 | 628 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 629 | _("free_current_contents: NULL pointer")); |
2f9429ae | 630 | if (*location != NULL) |
e2f9c474 | 631 | { |
b8c9b27d | 632 | xfree (*location); |
e2f9c474 AC |
633 | *location = NULL; |
634 | } | |
c906108c SS |
635 | } |
636 | ||
637 | /* Provide a known function that does nothing, to use as a base for | |
7a9dd1b2 | 638 | a possibly long chain of cleanups. This is useful where we |
c906108c SS |
639 | use the cleanup chain for handling normal cleanups as well as dealing |
640 | with cleanups that need to be done as a result of a call to error(). | |
641 | In such cases, we may not be certain where the first cleanup is, unless | |
581e13c1 | 642 | we have a do-nothing one to always use as the base. */ |
c906108c | 643 | |
c906108c | 644 | void |
e4005526 | 645 | null_cleanup (void *arg) |
c906108c SS |
646 | { |
647 | } | |
648 | ||
0f3bb72e PH |
649 | /* If nonzero, display time usage both at startup and for each command. */ |
650 | ||
651 | static int display_time; | |
652 | ||
653 | /* If nonzero, display space usage both at startup and for each command. */ | |
654 | ||
655 | static int display_space; | |
656 | ||
657 | /* Records a run time and space usage to be used as a base for | |
658 | reporting elapsed time or change in space. In addition, | |
659 | the msg_type field indicates whether the saved time is from the | |
660 | beginning of GDB execution (0) or the beginning of an individual | |
661 | command execution (1). */ | |
662 | struct cmd_stats | |
663 | { | |
664 | int msg_type; | |
0a1c4d10 DE |
665 | long start_cpu_time; |
666 | struct timeval start_wall_time; | |
0f3bb72e PH |
667 | long start_space; |
668 | }; | |
669 | ||
670 | /* Set whether to display time statistics to NEW_VALUE (non-zero | |
671 | means true). */ | |
672 | void | |
673 | set_display_time (int new_value) | |
674 | { | |
675 | display_time = new_value; | |
676 | } | |
677 | ||
678 | /* Set whether to display space statistics to NEW_VALUE (non-zero | |
679 | means true). */ | |
680 | void | |
681 | set_display_space (int new_value) | |
682 | { | |
683 | display_space = new_value; | |
684 | } | |
685 | ||
686 | /* As indicated by display_time and display_space, report GDB's elapsed time | |
687 | and space usage from the base time and space provided in ARG, which | |
581e13c1 MS |
688 | must be a pointer to a struct cmd_stat. This function is intended |
689 | to be called as a cleanup. */ | |
0f3bb72e PH |
690 | static void |
691 | report_command_stats (void *arg) | |
692 | { | |
693 | struct cmd_stats *start_stats = (struct cmd_stats *) arg; | |
694 | int msg_type = start_stats->msg_type; | |
695 | ||
696 | if (display_time) | |
697 | { | |
0a1c4d10 DE |
698 | long cmd_time = get_run_time () - start_stats->start_cpu_time; |
699 | struct timeval now_wall_time, delta_wall_time; | |
700 | ||
701 | gettimeofday (&now_wall_time, NULL); | |
702 | timeval_sub (&delta_wall_time, | |
703 | &now_wall_time, &start_stats->start_wall_time); | |
0f3bb72e PH |
704 | |
705 | printf_unfiltered (msg_type == 0 | |
0a1c4d10 DE |
706 | ? _("Startup time: %ld.%06ld (cpu), %ld.%06ld (wall)\n") |
707 | : _("Command execution time: %ld.%06ld (cpu), %ld.%06ld (wall)\n"), | |
708 | cmd_time / 1000000, cmd_time % 1000000, | |
2b54dda2 DM |
709 | (long) delta_wall_time.tv_sec, |
710 | (long) delta_wall_time.tv_usec); | |
0f3bb72e PH |
711 | } |
712 | ||
713 | if (display_space) | |
714 | { | |
715 | #ifdef HAVE_SBRK | |
716 | char *lim = (char *) sbrk (0); | |
717 | ||
718 | long space_now = lim - lim_at_start; | |
719 | long space_diff = space_now - start_stats->start_space; | |
720 | ||
721 | printf_unfiltered (msg_type == 0 | |
5d901a73 TT |
722 | ? _("Space used: %ld (%s%ld during startup)\n") |
723 | : _("Space used: %ld (%s%ld for this command)\n"), | |
0f3bb72e | 724 | space_now, |
5d901a73 | 725 | (space_diff >= 0 ? "+" : ""), |
0f3bb72e PH |
726 | space_diff); |
727 | #endif | |
728 | } | |
729 | } | |
730 | ||
731 | /* Create a cleanup that reports time and space used since its | |
732 | creation. Precise messages depend on MSG_TYPE: | |
733 | 0: Initial time/space | |
734 | 1: Individual command time/space. */ | |
735 | struct cleanup * | |
736 | make_command_stats_cleanup (int msg_type) | |
737 | { | |
738 | struct cmd_stats *new_stat = XMALLOC (struct cmd_stats); | |
739 | ||
740 | #ifdef HAVE_SBRK | |
741 | char *lim = (char *) sbrk (0); | |
742 | new_stat->start_space = lim - lim_at_start; | |
743 | #endif | |
744 | ||
745 | new_stat->msg_type = msg_type; | |
0a1c4d10 DE |
746 | new_stat->start_cpu_time = get_run_time (); |
747 | gettimeofday (&new_stat->start_wall_time, NULL); | |
0f3bb72e PH |
748 | |
749 | return make_cleanup_dtor (report_command_stats, new_stat, xfree); | |
750 | } | |
c906108c | 751 | \f |
c5aa993b | 752 | |
8731e58e | 753 | |
f5a96129 AC |
754 | /* Print a warning message. The first argument STRING is the warning |
755 | message, used as an fprintf format string, the second is the | |
756 | va_list of arguments for that string. A warning is unfiltered (not | |
757 | paginated) so that the user does not need to page through each | |
758 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
759 | |
760 | void | |
f5a96129 | 761 | vwarning (const char *string, va_list args) |
c906108c | 762 | { |
9a4105ab AC |
763 | if (deprecated_warning_hook) |
764 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
765 | else |
766 | { | |
767 | target_terminal_ours (); | |
581e13c1 | 768 | wrap_here (""); /* Force out any buffered output. */ |
f5a96129 AC |
769 | gdb_flush (gdb_stdout); |
770 | if (warning_pre_print) | |
306d9ac5 | 771 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
772 | vfprintf_unfiltered (gdb_stderr, string, args); |
773 | fprintf_unfiltered (gdb_stderr, "\n"); | |
774 | va_end (args); | |
775 | } | |
c906108c SS |
776 | } |
777 | ||
778 | /* Print a warning message. | |
779 | The first argument STRING is the warning message, used as a fprintf string, | |
780 | and the remaining args are passed as arguments to it. | |
781 | The primary difference between warnings and errors is that a warning | |
782 | does not force the return to command level. */ | |
783 | ||
c906108c | 784 | void |
8731e58e | 785 | warning (const char *string, ...) |
c906108c SS |
786 | { |
787 | va_list args; | |
e0627e85 | 788 | |
c906108c | 789 | va_start (args, string); |
f5a96129 AC |
790 | vwarning (string, args); |
791 | va_end (args); | |
c906108c SS |
792 | } |
793 | ||
c906108c SS |
794 | /* Print an error message and return to command level. |
795 | The first argument STRING is the error message, used as a fprintf string, | |
796 | and the remaining args are passed as arguments to it. */ | |
797 | ||
c25c4a8b | 798 | void |
4ce44c66 JM |
799 | verror (const char *string, va_list args) |
800 | { | |
6b1b7650 | 801 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
802 | } |
803 | ||
c25c4a8b | 804 | void |
8731e58e | 805 | error (const char *string, ...) |
c906108c SS |
806 | { |
807 | va_list args; | |
e0627e85 | 808 | |
c906108c | 809 | va_start (args, string); |
6b1b7650 | 810 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 | 811 | va_end (args); |
c906108c SS |
812 | } |
813 | ||
d75e3c94 JJ |
814 | /* Print an error message and quit. |
815 | The first argument STRING is the error message, used as a fprintf string, | |
816 | and the remaining args are passed as arguments to it. */ | |
817 | ||
c25c4a8b | 818 | void |
d75e3c94 JJ |
819 | vfatal (const char *string, va_list args) |
820 | { | |
6b1b7650 | 821 | throw_vfatal (string, args); |
d75e3c94 JJ |
822 | } |
823 | ||
c25c4a8b | 824 | void |
d75e3c94 JJ |
825 | fatal (const char *string, ...) |
826 | { | |
827 | va_list args; | |
e0627e85 | 828 | |
d75e3c94 | 829 | va_start (args, string); |
6b1b7650 | 830 | throw_vfatal (string, args); |
d75e3c94 JJ |
831 | va_end (args); |
832 | } | |
833 | ||
c25c4a8b | 834 | void |
d75e3c94 | 835 | error_stream (struct ui_file *stream) |
2acceee2 | 836 | { |
759ef836 | 837 | char *message = ui_file_xstrdup (stream, NULL); |
e0627e85 | 838 | |
6b1b7650 | 839 | make_cleanup (xfree, message); |
8a3fe4f8 | 840 | error (("%s"), message); |
2acceee2 | 841 | } |
c906108c | 842 | |
7991dee7 JK |
843 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
844 | ||
845 | static void | |
846 | dump_core (void) | |
847 | { | |
848 | #ifdef HAVE_SETRLIMIT | |
849 | struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY }; | |
850 | ||
851 | setrlimit (RLIMIT_CORE, &rlim); | |
852 | #endif /* HAVE_SETRLIMIT */ | |
853 | ||
854 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
855 | } | |
856 | ||
3e43a32a MS |
857 | /* Check whether GDB will be able to dump core using the dump_core |
858 | function. */ | |
7991dee7 JK |
859 | |
860 | static int | |
861 | can_dump_core (const char *reason) | |
862 | { | |
863 | #ifdef HAVE_GETRLIMIT | |
864 | struct rlimit rlim; | |
865 | ||
866 | /* Be quiet and assume we can dump if an error is returned. */ | |
867 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
868 | return 1; | |
869 | ||
870 | if (rlim.rlim_max == 0) | |
871 | { | |
872 | fprintf_unfiltered (gdb_stderr, | |
3e43a32a MS |
873 | _("%s\nUnable to dump core, use `ulimit -c" |
874 | " unlimited' before executing GDB next time.\n"), | |
875 | reason); | |
7991dee7 JK |
876 | return 0; |
877 | } | |
878 | #endif /* HAVE_GETRLIMIT */ | |
879 | ||
880 | return 1; | |
881 | } | |
882 | ||
3c16cced PA |
883 | /* Allow the user to configure the debugger behavior with respect to |
884 | what to do when an internal problem is detected. */ | |
885 | ||
886 | const char internal_problem_ask[] = "ask"; | |
887 | const char internal_problem_yes[] = "yes"; | |
888 | const char internal_problem_no[] = "no"; | |
889 | static const char *internal_problem_modes[] = | |
890 | { | |
891 | internal_problem_ask, | |
892 | internal_problem_yes, | |
893 | internal_problem_no, | |
894 | NULL | |
895 | }; | |
3c16cced | 896 | |
581e13c1 | 897 | /* Print a message reporting an internal error/warning. Ask the user |
dec43320 AC |
898 | if they want to continue, dump core, or just exit. Return |
899 | something to indicate a quit. */ | |
c906108c | 900 | |
dec43320 | 901 | struct internal_problem |
c906108c | 902 | { |
dec43320 | 903 | const char *name; |
3c16cced PA |
904 | const char *should_quit; |
905 | const char *should_dump_core; | |
dec43320 AC |
906 | }; |
907 | ||
908 | /* Report a problem, internal to GDB, to the user. Once the problem | |
909 | has been reported, and assuming GDB didn't quit, the caller can | |
910 | either allow execution to resume or throw an error. */ | |
911 | ||
a0b31db1 | 912 | static void ATTRIBUTE_PRINTF (4, 0) |
dec43320 | 913 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 914 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 915 | { |
dec43320 | 916 | static int dejavu; |
375fc983 | 917 | int quit_p; |
7be570e7 | 918 | int dump_core_p; |
714b1282 | 919 | char *reason; |
c906108c | 920 | |
dec43320 | 921 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
922 | { |
923 | static char msg[] = "Recursive internal problem.\n"; | |
5d502164 | 924 | |
714b1282 AC |
925 | switch (dejavu) |
926 | { | |
927 | case 0: | |
928 | dejavu = 1; | |
929 | break; | |
930 | case 1: | |
931 | dejavu = 2; | |
932 | fputs_unfiltered (msg, gdb_stderr); | |
7991dee7 | 933 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
934 | default: |
935 | dejavu = 3; | |
bf1d7d9c JB |
936 | /* Newer GLIBC versions put the warn_unused_result attribute |
937 | on write, but this is one of those rare cases where | |
938 | ignoring the return value is correct. Casting to (void) | |
939 | does not fix this problem. This is the solution suggested | |
940 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
941 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
7991dee7 | 942 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
943 | exit (1); |
944 | } | |
945 | } | |
c906108c | 946 | |
dec43320 | 947 | /* Try to get the message out and at the start of a new line. */ |
4261bedc | 948 | target_terminal_ours (); |
dec43320 AC |
949 | begin_line (); |
950 | ||
714b1282 AC |
951 | /* Create a string containing the full error/warning message. Need |
952 | to call query with this full string, as otherwize the reason | |
953 | (error/warning) and question become separated. Format using a | |
954 | style similar to a compiler error message. Include extra detail | |
955 | so that the user knows that they are living on the edge. */ | |
956 | { | |
957 | char *msg; | |
5d502164 | 958 | |
e623b504 | 959 | msg = xstrvprintf (fmt, ap); |
3e43a32a MS |
960 | reason = xstrprintf ("%s:%d: %s: %s\n" |
961 | "A problem internal to GDB has been detected,\n" | |
962 | "further debugging may prove unreliable.", | |
963 | file, line, problem->name, msg); | |
714b1282 AC |
964 | xfree (msg); |
965 | make_cleanup (xfree, reason); | |
966 | } | |
7be570e7 | 967 | |
3c16cced | 968 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 969 | { |
dec43320 | 970 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
971 | this lessens the likelihood of GDB going into an infinite |
972 | loop. */ | |
26bb68be PP |
973 | if (caution == 0) |
974 | { | |
975 | /* Emit the message and quit. */ | |
976 | fputs_unfiltered (reason, gdb_stderr); | |
977 | fputs_unfiltered ("\n", gdb_stderr); | |
978 | quit_p = 1; | |
979 | } | |
980 | else | |
981 | quit_p = query (_("%s\nQuit this debugging session? "), reason); | |
dec43320 | 982 | } |
3c16cced PA |
983 | else if (problem->should_quit == internal_problem_yes) |
984 | quit_p = 1; | |
985 | else if (problem->should_quit == internal_problem_no) | |
986 | quit_p = 0; | |
987 | else | |
988 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 989 | |
3c16cced | 990 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 991 | { |
7991dee7 JK |
992 | if (!can_dump_core (reason)) |
993 | dump_core_p = 0; | |
994 | else | |
995 | { | |
996 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
997 | `dropping' so that it is easier to see that something went | |
998 | wrong in GDB. */ | |
999 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason); | |
1000 | } | |
dec43320 | 1001 | } |
3c16cced | 1002 | else if (problem->should_dump_core == internal_problem_yes) |
7991dee7 | 1003 | dump_core_p = can_dump_core (reason); |
3c16cced PA |
1004 | else if (problem->should_dump_core == internal_problem_no) |
1005 | dump_core_p = 0; | |
1006 | else | |
1007 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 1008 | |
375fc983 | 1009 | if (quit_p) |
7be570e7 JM |
1010 | { |
1011 | if (dump_core_p) | |
7991dee7 | 1012 | dump_core (); |
375fc983 AC |
1013 | else |
1014 | exit (1); | |
7be570e7 JM |
1015 | } |
1016 | else | |
1017 | { | |
1018 | if (dump_core_p) | |
375fc983 | 1019 | { |
9b265ec2 | 1020 | #ifdef HAVE_WORKING_FORK |
375fc983 | 1021 | if (fork () == 0) |
7991dee7 | 1022 | dump_core (); |
9b265ec2 | 1023 | #endif |
375fc983 | 1024 | } |
7be570e7 | 1025 | } |
96baa820 JM |
1026 | |
1027 | dejavu = 0; | |
dec43320 AC |
1028 | } |
1029 | ||
1030 | static struct internal_problem internal_error_problem = { | |
3c16cced | 1031 | "internal-error", internal_problem_ask, internal_problem_ask |
dec43320 AC |
1032 | }; |
1033 | ||
c25c4a8b | 1034 | void |
8731e58e | 1035 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
1036 | { |
1037 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
315a522e | 1038 | deprecated_throw_reason (RETURN_ERROR); |
c906108c SS |
1039 | } |
1040 | ||
c25c4a8b | 1041 | void |
8e65ff28 | 1042 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
1043 | { |
1044 | va_list ap; | |
e0627e85 | 1045 | |
4ce44c66 | 1046 | va_start (ap, string); |
8e65ff28 | 1047 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
1048 | va_end (ap); |
1049 | } | |
1050 | ||
dec43320 | 1051 | static struct internal_problem internal_warning_problem = { |
3c16cced | 1052 | "internal-warning", internal_problem_ask, internal_problem_ask |
dec43320 AC |
1053 | }; |
1054 | ||
1055 | void | |
8731e58e | 1056 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
1057 | { |
1058 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
1059 | } | |
1060 | ||
1061 | void | |
1062 | internal_warning (const char *file, int line, const char *string, ...) | |
1063 | { | |
1064 | va_list ap; | |
e0627e85 | 1065 | |
dec43320 AC |
1066 | va_start (ap, string); |
1067 | internal_vwarning (file, line, string, ap); | |
1068 | va_end (ap); | |
1069 | } | |
1070 | ||
3c16cced PA |
1071 | /* Dummy functions to keep add_prefix_cmd happy. */ |
1072 | ||
1073 | static void | |
1074 | set_internal_problem_cmd (char *args, int from_tty) | |
1075 | { | |
1076 | } | |
1077 | ||
1078 | static void | |
1079 | show_internal_problem_cmd (char *args, int from_tty) | |
1080 | { | |
1081 | } | |
1082 | ||
1083 | /* When GDB reports an internal problem (error or warning) it gives | |
1084 | the user the opportunity to quit GDB and/or create a core file of | |
1085 | the current debug session. This function registers a few commands | |
1086 | that make it possible to specify that GDB should always or never | |
1087 | quit or create a core file, without asking. The commands look | |
1088 | like: | |
1089 | ||
1090 | maint set PROBLEM-NAME quit ask|yes|no | |
1091 | maint show PROBLEM-NAME quit | |
1092 | maint set PROBLEM-NAME corefile ask|yes|no | |
1093 | maint show PROBLEM-NAME corefile | |
1094 | ||
1095 | Where PROBLEM-NAME is currently "internal-error" or | |
1096 | "internal-warning". */ | |
1097 | ||
1098 | static void | |
1099 | add_internal_problem_command (struct internal_problem *problem) | |
1100 | { | |
1101 | struct cmd_list_element **set_cmd_list; | |
1102 | struct cmd_list_element **show_cmd_list; | |
1103 | char *set_doc; | |
1104 | char *show_doc; | |
1105 | ||
1106 | set_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
1107 | show_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
1108 | *set_cmd_list = NULL; | |
1109 | *show_cmd_list = NULL; | |
1110 | ||
1111 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
1112 | problem->name); | |
1113 | ||
1114 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
1115 | problem->name); | |
1116 | ||
1117 | add_prefix_cmd ((char*) problem->name, | |
1118 | class_maintenance, set_internal_problem_cmd, set_doc, | |
1119 | set_cmd_list, | |
c4f7c687 MK |
1120 | concat ("maintenance set ", problem->name, " ", |
1121 | (char *) NULL), | |
3c16cced PA |
1122 | 0/*allow-unknown*/, &maintenance_set_cmdlist); |
1123 | ||
1124 | add_prefix_cmd ((char*) problem->name, | |
1125 | class_maintenance, show_internal_problem_cmd, show_doc, | |
1126 | show_cmd_list, | |
c4f7c687 MK |
1127 | concat ("maintenance show ", problem->name, " ", |
1128 | (char *) NULL), | |
3c16cced PA |
1129 | 0/*allow-unknown*/, &maintenance_show_cmdlist); |
1130 | ||
3e43a32a MS |
1131 | set_doc = xstrprintf (_("Set whether GDB should quit " |
1132 | "when an %s is detected"), | |
3c16cced | 1133 | problem->name); |
3e43a32a MS |
1134 | show_doc = xstrprintf (_("Show whether GDB will quit " |
1135 | "when an %s is detected"), | |
3c16cced PA |
1136 | problem->name); |
1137 | add_setshow_enum_cmd ("quit", class_maintenance, | |
1138 | internal_problem_modes, | |
1139 | &problem->should_quit, | |
1140 | set_doc, | |
1141 | show_doc, | |
1142 | NULL, /* help_doc */ | |
1143 | NULL, /* setfunc */ | |
1144 | NULL, /* showfunc */ | |
1145 | set_cmd_list, | |
1146 | show_cmd_list); | |
1147 | ||
1eefb858 TT |
1148 | xfree (set_doc); |
1149 | xfree (show_doc); | |
1150 | ||
3e43a32a MS |
1151 | set_doc = xstrprintf (_("Set whether GDB should create a core " |
1152 | "file of GDB when %s is detected"), | |
3c16cced | 1153 | problem->name); |
3e43a32a MS |
1154 | show_doc = xstrprintf (_("Show whether GDB will create a core " |
1155 | "file of GDB when %s is detected"), | |
3c16cced PA |
1156 | problem->name); |
1157 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
1158 | internal_problem_modes, | |
1159 | &problem->should_dump_core, | |
1160 | set_doc, | |
1161 | show_doc, | |
1162 | NULL, /* help_doc */ | |
1163 | NULL, /* setfunc */ | |
1164 | NULL, /* showfunc */ | |
1165 | set_cmd_list, | |
1166 | show_cmd_list); | |
1eefb858 TT |
1167 | |
1168 | xfree (set_doc); | |
1169 | xfree (show_doc); | |
3c16cced PA |
1170 | } |
1171 | ||
c906108c SS |
1172 | /* Print the system error message for errno, and also mention STRING |
1173 | as the file name for which the error was encountered. | |
1174 | Then return to command level. */ | |
1175 | ||
c25c4a8b | 1176 | void |
6972bc8b | 1177 | perror_with_name (const char *string) |
c906108c SS |
1178 | { |
1179 | char *err; | |
1180 | char *combined; | |
1181 | ||
1182 | err = safe_strerror (errno); | |
1183 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1184 | strcpy (combined, string); | |
1185 | strcat (combined, ": "); | |
1186 | strcat (combined, err); | |
1187 | ||
1188 | /* I understand setting these is a matter of taste. Still, some people | |
1189 | may clear errno but not know about bfd_error. Doing this here is not | |
581e13c1 | 1190 | unreasonable. */ |
c906108c SS |
1191 | bfd_set_error (bfd_error_no_error); |
1192 | errno = 0; | |
1193 | ||
8a3fe4f8 | 1194 | error (_("%s."), combined); |
c906108c SS |
1195 | } |
1196 | ||
1197 | /* Print the system error message for ERRCODE, and also mention STRING | |
1198 | as the file name for which the error was encountered. */ | |
1199 | ||
1200 | void | |
6972bc8b | 1201 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
1202 | { |
1203 | char *err; | |
1204 | char *combined; | |
1205 | ||
1206 | err = safe_strerror (errcode); | |
1207 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1208 | strcpy (combined, string); | |
1209 | strcat (combined, ": "); | |
1210 | strcat (combined, err); | |
1211 | ||
1212 | /* We want anything which was printed on stdout to come out first, before | |
1213 | this message. */ | |
1214 | gdb_flush (gdb_stdout); | |
1215 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
1216 | } | |
1217 | ||
1218 | /* Control C eventually causes this to be called, at a convenient time. */ | |
1219 | ||
1220 | void | |
fba45db2 | 1221 | quit (void) |
c906108c | 1222 | { |
7be570e7 JM |
1223 | #ifdef __MSDOS__ |
1224 | /* No steenking SIGINT will ever be coming our way when the | |
1225 | program is resumed. Don't lie. */ | |
e06e2353 | 1226 | fatal ("Quit"); |
7be570e7 | 1227 | #else |
c906108c | 1228 | if (job_control |
8731e58e AC |
1229 | /* If there is no terminal switching for this target, then we can't |
1230 | possibly get screwed by the lack of job control. */ | |
c906108c | 1231 | || current_target.to_terminal_ours == NULL) |
e06e2353 | 1232 | fatal ("Quit"); |
c906108c | 1233 | else |
e06e2353 | 1234 | fatal ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 1235 | #endif |
c906108c SS |
1236 | } |
1237 | ||
c906108c | 1238 | \f |
c906108c | 1239 | /* Called when a memory allocation fails, with the number of bytes of |
581e13c1 | 1240 | memory requested in SIZE. */ |
c906108c | 1241 | |
c25c4a8b | 1242 | void |
d26e3629 | 1243 | malloc_failure (long size) |
c906108c SS |
1244 | { |
1245 | if (size > 0) | |
1246 | { | |
8e65ff28 | 1247 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 1248 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 1249 | size); |
c906108c SS |
1250 | } |
1251 | else | |
1252 | { | |
e2e0b3e5 | 1253 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
1254 | } |
1255 | } | |
1256 | ||
c906108c SS |
1257 | /* My replacement for the read system call. |
1258 | Used like `read' but keeps going if `read' returns too soon. */ | |
1259 | ||
1260 | int | |
fba45db2 | 1261 | myread (int desc, char *addr, int len) |
c906108c | 1262 | { |
52f0bd74 | 1263 | int val; |
c906108c SS |
1264 | int orglen = len; |
1265 | ||
1266 | while (len > 0) | |
1267 | { | |
1268 | val = read (desc, addr, len); | |
1269 | if (val < 0) | |
1270 | return val; | |
1271 | if (val == 0) | |
1272 | return orglen - len; | |
1273 | len -= val; | |
1274 | addr += val; | |
1275 | } | |
1276 | return orglen; | |
1277 | } | |
d26e3629 | 1278 | |
c906108c SS |
1279 | /* Make a copy of the string at PTR with SIZE characters |
1280 | (and add a null character at the end in the copy). | |
1281 | Uses malloc to get the space. Returns the address of the copy. */ | |
1282 | ||
1283 | char * | |
5565b556 | 1284 | savestring (const char *ptr, size_t size) |
c906108c | 1285 | { |
52f0bd74 | 1286 | char *p = (char *) xmalloc (size + 1); |
e0627e85 | 1287 | |
c906108c SS |
1288 | memcpy (p, ptr, size); |
1289 | p[size] = 0; | |
1290 | return p; | |
1291 | } | |
1292 | ||
c906108c | 1293 | void |
aa1ee363 | 1294 | print_spaces (int n, struct ui_file *file) |
c906108c | 1295 | { |
392a587b | 1296 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1297 | } |
1298 | ||
1299 | /* Print a host address. */ | |
1300 | ||
1301 | void | |
ac16bf07 | 1302 | gdb_print_host_address (const void *addr, struct ui_file *stream) |
c906108c | 1303 | { |
ea8992ce | 1304 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 1305 | } |
c906108c | 1306 | \f |
c5aa993b | 1307 | |
dc92e161 TT |
1308 | /* A cleanup function that calls regfree. */ |
1309 | ||
1310 | static void | |
1311 | do_regfree_cleanup (void *r) | |
1312 | { | |
1313 | regfree (r); | |
1314 | } | |
1315 | ||
1316 | /* Create a new cleanup that frees the compiled regular expression R. */ | |
1317 | ||
1318 | struct cleanup * | |
1319 | make_regfree_cleanup (regex_t *r) | |
1320 | { | |
1321 | return make_cleanup (do_regfree_cleanup, r); | |
1322 | } | |
1323 | ||
1324 | /* Return an xmalloc'd error message resulting from a regular | |
1325 | expression compilation failure. */ | |
1326 | ||
1327 | char * | |
1328 | get_regcomp_error (int code, regex_t *rx) | |
1329 | { | |
1330 | size_t length = regerror (code, rx, NULL, 0); | |
1331 | char *result = xmalloc (length); | |
1332 | ||
1333 | regerror (code, rx, result, length); | |
1334 | return result; | |
1335 | } | |
1336 | ||
1337 | \f | |
1338 | ||
981c7f5a | 1339 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 1340 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
1341 | answer is yes, or default the answer to the specified default |
1342 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
1343 | default answer, or '\0' for no default. | |
cbdeadca JJ |
1344 | CTLSTR is the control string and should end in "? ". It should |
1345 | not say how to answer, because we do that. | |
1346 | ARGS are the arguments passed along with the CTLSTR argument to | |
1347 | printf. */ | |
1348 | ||
a0b31db1 | 1349 | static int ATTRIBUTE_PRINTF (1, 0) |
cbdeadca JJ |
1350 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
1351 | { | |
1352 | int answer; | |
1353 | int ans2; | |
1354 | int retval; | |
1355 | int def_value; | |
1356 | char def_answer, not_def_answer; | |
981c7f5a | 1357 | char *y_string, *n_string, *question; |
cbdeadca JJ |
1358 | |
1359 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
1360 | if (defchar == '\0') |
1361 | { | |
1362 | def_value = 1; | |
1363 | def_answer = 'Y'; | |
1364 | not_def_answer = 'N'; | |
1365 | y_string = "y"; | |
1366 | n_string = "n"; | |
1367 | } | |
1368 | else if (defchar == 'y') | |
cbdeadca JJ |
1369 | { |
1370 | def_value = 1; | |
1371 | def_answer = 'Y'; | |
1372 | not_def_answer = 'N'; | |
1373 | y_string = "[y]"; | |
1374 | n_string = "n"; | |
1375 | } | |
1376 | else | |
1377 | { | |
1378 | def_value = 0; | |
1379 | def_answer = 'N'; | |
1380 | not_def_answer = 'Y'; | |
1381 | y_string = "y"; | |
1382 | n_string = "[n]"; | |
1383 | } | |
1384 | ||
981c7f5a | 1385 | /* Automatically answer the default value if the user did not want |
a502cf95 NR |
1386 | prompts or the command was issued with the server prefix. */ |
1387 | if (! caution || server_command) | |
981c7f5a DJ |
1388 | return def_value; |
1389 | ||
1390 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 1391 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
1392 | way, important error messages don't get lost when talking to GDB |
1393 | over a pipe. */ | |
c63a1f86 | 1394 | if (! input_from_terminal_p ()) |
981c7f5a DJ |
1395 | { |
1396 | wrap_here (""); | |
1397 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1398 | ||
3e43a32a MS |
1399 | printf_filtered (_("(%s or %s) [answered %c; " |
1400 | "input not from terminal]\n"), | |
981c7f5a DJ |
1401 | y_string, n_string, def_answer); |
1402 | gdb_flush (gdb_stdout); | |
1403 | ||
1404 | return def_value; | |
1405 | } | |
1406 | ||
9a4105ab | 1407 | if (deprecated_query_hook) |
cbdeadca | 1408 | { |
9a4105ab | 1409 | return deprecated_query_hook (ctlstr, args); |
cbdeadca JJ |
1410 | } |
1411 | ||
981c7f5a DJ |
1412 | /* Format the question outside of the loop, to avoid reusing args. */ |
1413 | question = xstrvprintf (ctlstr, args); | |
1414 | ||
cbdeadca JJ |
1415 | while (1) |
1416 | { | |
581e13c1 | 1417 | wrap_here (""); /* Flush any buffered output. */ |
cbdeadca JJ |
1418 | gdb_flush (gdb_stdout); |
1419 | ||
1420 | if (annotation_level > 1) | |
a3f17187 | 1421 | printf_filtered (("\n\032\032pre-query\n")); |
cbdeadca | 1422 | |
981c7f5a | 1423 | fputs_filtered (question, gdb_stdout); |
a3f17187 | 1424 | printf_filtered (_("(%s or %s) "), y_string, n_string); |
cbdeadca JJ |
1425 | |
1426 | if (annotation_level > 1) | |
a3f17187 | 1427 | printf_filtered (("\n\032\032query\n")); |
cbdeadca JJ |
1428 | |
1429 | wrap_here (""); | |
1430 | gdb_flush (gdb_stdout); | |
1431 | ||
1432 | answer = fgetc (stdin); | |
8626589c JB |
1433 | |
1434 | /* We expect fgetc to block until a character is read. But | |
1435 | this may not be the case if the terminal was opened with | |
1436 | the NONBLOCK flag. In that case, if there is nothing to | |
1437 | read on stdin, fgetc returns EOF, but also sets the error | |
1438 | condition flag on stdin and errno to EAGAIN. With a true | |
1439 | EOF, stdin's error condition flag is not set. | |
1440 | ||
1441 | A situation where this behavior was observed is a pseudo | |
1442 | terminal on AIX. */ | |
1443 | while (answer == EOF && ferror (stdin) && errno == EAGAIN) | |
1444 | { | |
1445 | /* Not a real EOF. Wait a little while and try again until | |
1446 | we read something. */ | |
1447 | clearerr (stdin); | |
1448 | gdb_usleep (10000); | |
1449 | answer = fgetc (stdin); | |
1450 | } | |
1451 | ||
cbdeadca JJ |
1452 | clearerr (stdin); /* in case of C-d */ |
1453 | if (answer == EOF) /* C-d */ | |
1454 | { | |
fa3fd85b | 1455 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
1456 | retval = def_value; |
1457 | break; | |
1458 | } | |
581e13c1 | 1459 | /* Eat rest of input line, to EOF or newline. */ |
cbdeadca JJ |
1460 | if (answer != '\n') |
1461 | do | |
1462 | { | |
1463 | ans2 = fgetc (stdin); | |
1464 | clearerr (stdin); | |
1465 | } | |
1466 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); | |
1467 | ||
1468 | if (answer >= 'a') | |
1469 | answer -= 040; | |
1470 | /* Check answer. For the non-default, the user must specify | |
1471 | the non-default explicitly. */ | |
1472 | if (answer == not_def_answer) | |
1473 | { | |
1474 | retval = !def_value; | |
1475 | break; | |
1476 | } | |
981c7f5a DJ |
1477 | /* Otherwise, if a default was specified, the user may either |
1478 | specify the required input or have it default by entering | |
1479 | nothing. */ | |
1480 | if (answer == def_answer | |
1481 | || (defchar != '\0' && | |
1482 | (answer == '\n' || answer == '\r' || answer == EOF))) | |
cbdeadca JJ |
1483 | { |
1484 | retval = def_value; | |
1485 | break; | |
1486 | } | |
1487 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 1488 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
1489 | y_string, n_string); |
1490 | } | |
1491 | ||
981c7f5a | 1492 | xfree (question); |
cbdeadca | 1493 | if (annotation_level > 1) |
a3f17187 | 1494 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
1495 | return retval; |
1496 | } | |
1497 | \f | |
1498 | ||
1499 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1500 | answer is yes, or 0 if answer is defaulted. | |
1501 | Takes three args which are given to printf to print the question. | |
1502 | The first, a control string, should end in "? ". | |
1503 | It should not say how to answer, because we do that. */ | |
1504 | ||
1505 | int | |
1506 | nquery (const char *ctlstr, ...) | |
1507 | { | |
1508 | va_list args; | |
899500d6 | 1509 | int ret; |
cbdeadca JJ |
1510 | |
1511 | va_start (args, ctlstr); | |
899500d6 | 1512 | ret = defaulted_query (ctlstr, 'n', args); |
cbdeadca | 1513 | va_end (args); |
899500d6 | 1514 | return ret; |
cbdeadca JJ |
1515 | } |
1516 | ||
1517 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1518 | answer is yes, or 1 if answer is defaulted. | |
1519 | Takes three args which are given to printf to print the question. | |
1520 | The first, a control string, should end in "? ". | |
1521 | It should not say how to answer, because we do that. */ | |
1522 | ||
1523 | int | |
1524 | yquery (const char *ctlstr, ...) | |
1525 | { | |
1526 | va_list args; | |
899500d6 | 1527 | int ret; |
cbdeadca JJ |
1528 | |
1529 | va_start (args, ctlstr); | |
899500d6 | 1530 | ret = defaulted_query (ctlstr, 'y', args); |
cbdeadca | 1531 | va_end (args); |
899500d6 | 1532 | return ret; |
cbdeadca JJ |
1533 | } |
1534 | ||
981c7f5a DJ |
1535 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
1536 | Takes three args which are given to printf to print the question. | |
1537 | The first, a control string, should end in "? ". | |
1538 | It should not say how to answer, because we do that. */ | |
1539 | ||
1540 | int | |
1541 | query (const char *ctlstr, ...) | |
1542 | { | |
1543 | va_list args; | |
899500d6 | 1544 | int ret; |
981c7f5a DJ |
1545 | |
1546 | va_start (args, ctlstr); | |
899500d6 | 1547 | ret = defaulted_query (ctlstr, '\0', args); |
981c7f5a | 1548 | va_end (args); |
899500d6 | 1549 | return ret; |
981c7f5a DJ |
1550 | } |
1551 | ||
6c7a06a3 TT |
1552 | /* A helper for parse_escape that converts a host character to a |
1553 | target character. C is the host character. If conversion is | |
1554 | possible, then the target character is stored in *TARGET_C and the | |
1555 | function returns 1. Otherwise, the function returns 0. */ | |
1556 | ||
1557 | static int | |
f870a310 | 1558 | host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c) |
234b45d4 | 1559 | { |
6c7a06a3 TT |
1560 | struct obstack host_data; |
1561 | char the_char = c; | |
1562 | struct cleanup *cleanups; | |
1563 | int result = 0; | |
234b45d4 | 1564 | |
6c7a06a3 TT |
1565 | obstack_init (&host_data); |
1566 | cleanups = make_cleanup_obstack_free (&host_data); | |
234b45d4 | 1567 | |
f870a310 | 1568 | convert_between_encodings (target_charset (gdbarch), host_charset (), |
6c7a06a3 TT |
1569 | &the_char, 1, 1, &host_data, translit_none); |
1570 | ||
1571 | if (obstack_object_size (&host_data) == 1) | |
1572 | { | |
1573 | result = 1; | |
1574 | *target_c = *(char *) obstack_base (&host_data); | |
1575 | } | |
1576 | ||
1577 | do_cleanups (cleanups); | |
1578 | return result; | |
234b45d4 KB |
1579 | } |
1580 | ||
c906108c SS |
1581 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1582 | containing a pointer to the string to parse. That pointer | |
1583 | should point to the character after the \. That pointer | |
1584 | is updated past the characters we use. The value of the | |
1585 | escape sequence is returned. | |
1586 | ||
1587 | A negative value means the sequence \ newline was seen, | |
1588 | which is supposed to be equivalent to nothing at all. | |
1589 | ||
1590 | If \ is followed by a null character, we return a negative | |
1591 | value and leave the string pointer pointing at the null character. | |
1592 | ||
1593 | If \ is followed by 000, we return 0 and leave the string pointer | |
1594 | after the zeros. A value of 0 does not mean end of string. */ | |
1595 | ||
1596 | int | |
f870a310 | 1597 | parse_escape (struct gdbarch *gdbarch, char **string_ptr) |
c906108c | 1598 | { |
581e13c1 | 1599 | int target_char = -2; /* Initialize to avoid GCC warnings. */ |
52f0bd74 | 1600 | int c = *(*string_ptr)++; |
e0627e85 | 1601 | |
6c7a06a3 TT |
1602 | switch (c) |
1603 | { | |
8731e58e AC |
1604 | case '\n': |
1605 | return -2; | |
1606 | case 0: | |
1607 | (*string_ptr)--; | |
1608 | return 0; | |
8731e58e AC |
1609 | |
1610 | case '0': | |
1611 | case '1': | |
1612 | case '2': | |
1613 | case '3': | |
1614 | case '4': | |
1615 | case '5': | |
1616 | case '6': | |
1617 | case '7': | |
1618 | { | |
6c7a06a3 | 1619 | int i = host_hex_value (c); |
aa1ee363 | 1620 | int count = 0; |
8731e58e AC |
1621 | while (++count < 3) |
1622 | { | |
5cb316ef | 1623 | c = (**string_ptr); |
6c7a06a3 | 1624 | if (isdigit (c) && c != '8' && c != '9') |
8731e58e | 1625 | { |
5cb316ef | 1626 | (*string_ptr)++; |
8731e58e | 1627 | i *= 8; |
6c7a06a3 | 1628 | i += host_hex_value (c); |
8731e58e AC |
1629 | } |
1630 | else | |
1631 | { | |
8731e58e AC |
1632 | break; |
1633 | } | |
1634 | } | |
1635 | return i; | |
1636 | } | |
6c7a06a3 TT |
1637 | |
1638 | case 'a': | |
1639 | c = '\a'; | |
1640 | break; | |
1641 | case 'b': | |
1642 | c = '\b'; | |
1643 | break; | |
1644 | case 'f': | |
1645 | c = '\f'; | |
1646 | break; | |
1647 | case 'n': | |
1648 | c = '\n'; | |
1649 | break; | |
1650 | case 'r': | |
1651 | c = '\r'; | |
1652 | break; | |
1653 | case 't': | |
1654 | c = '\t'; | |
1655 | break; | |
1656 | case 'v': | |
1657 | c = '\v'; | |
1658 | break; | |
1659 | ||
1660 | default: | |
1661 | break; | |
1662 | } | |
1663 | ||
f870a310 | 1664 | if (!host_char_to_target (gdbarch, c, &target_char)) |
3351ea09 JB |
1665 | error (_("The escape sequence `\\%c' is equivalent to plain `%c'," |
1666 | " which has no equivalent\nin the `%s' character set."), | |
905b671b | 1667 | c, c, target_charset (gdbarch)); |
6c7a06a3 | 1668 | return target_char; |
c906108c SS |
1669 | } |
1670 | \f | |
1671 | /* Print the character C on STREAM as part of the contents of a literal | |
1672 | string whose delimiter is QUOTER. Note that this routine should only | |
1673 | be call for printing things which are independent of the language | |
581e13c1 | 1674 | of the program being debugged. */ |
c906108c | 1675 | |
43e526b9 | 1676 | static void |
74f832da | 1677 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
bee0189a DJ |
1678 | void (*do_fprintf) (struct ui_file *, const char *, ...) |
1679 | ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter) | |
c906108c | 1680 | { |
c906108c SS |
1681 | c &= 0xFF; /* Avoid sign bit follies */ |
1682 | ||
c5aa993b JM |
1683 | if (c < 0x20 || /* Low control chars */ |
1684 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1685 | (sevenbit_strings && c >= 0x80)) | |
1686 | { /* high order bit set */ | |
1687 | switch (c) | |
1688 | { | |
1689 | case '\n': | |
43e526b9 | 1690 | do_fputs ("\\n", stream); |
c5aa993b JM |
1691 | break; |
1692 | case '\b': | |
43e526b9 | 1693 | do_fputs ("\\b", stream); |
c5aa993b JM |
1694 | break; |
1695 | case '\t': | |
43e526b9 | 1696 | do_fputs ("\\t", stream); |
c5aa993b JM |
1697 | break; |
1698 | case '\f': | |
43e526b9 | 1699 | do_fputs ("\\f", stream); |
c5aa993b JM |
1700 | break; |
1701 | case '\r': | |
43e526b9 | 1702 | do_fputs ("\\r", stream); |
c5aa993b JM |
1703 | break; |
1704 | case '\033': | |
43e526b9 | 1705 | do_fputs ("\\e", stream); |
c5aa993b JM |
1706 | break; |
1707 | case '\007': | |
43e526b9 | 1708 | do_fputs ("\\a", stream); |
c5aa993b JM |
1709 | break; |
1710 | default: | |
43e526b9 | 1711 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1712 | break; |
1713 | } | |
1714 | } | |
1715 | else | |
1716 | { | |
1717 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1718 | do_fputs ("\\", stream); |
1719 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1720 | } |
c906108c | 1721 | } |
43e526b9 JM |
1722 | |
1723 | /* Print the character C on STREAM as part of the contents of a | |
1724 | literal string whose delimiter is QUOTER. Note that these routines | |
1725 | should only be call for printing things which are independent of | |
581e13c1 | 1726 | the language of the program being debugged. */ |
43e526b9 JM |
1727 | |
1728 | void | |
fba45db2 | 1729 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1730 | { |
1731 | while (*str) | |
1732 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1733 | } | |
1734 | ||
1735 | void | |
fba45db2 | 1736 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1737 | { |
1738 | while (*str) | |
1739 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1740 | } | |
1741 | ||
0876f84a DJ |
1742 | void |
1743 | fputstrn_filtered (const char *str, int n, int quoter, | |
1744 | struct ui_file *stream) | |
1745 | { | |
1746 | int i; | |
e0627e85 | 1747 | |
0876f84a DJ |
1748 | for (i = 0; i < n; i++) |
1749 | printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter); | |
1750 | } | |
1751 | ||
43e526b9 | 1752 | void |
8731e58e AC |
1753 | fputstrn_unfiltered (const char *str, int n, int quoter, |
1754 | struct ui_file *stream) | |
43e526b9 JM |
1755 | { |
1756 | int i; | |
5d502164 | 1757 | |
43e526b9 JM |
1758 | for (i = 0; i < n; i++) |
1759 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1760 | } | |
c906108c | 1761 | \f |
c5aa993b | 1762 | |
c906108c SS |
1763 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1764 | static unsigned int lines_per_page; | |
920d2a44 AC |
1765 | static void |
1766 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1767 | struct cmd_list_element *c, const char *value) | |
1768 | { | |
3e43a32a MS |
1769 | fprintf_filtered (file, |
1770 | _("Number of lines gdb thinks are in a page is %s.\n"), | |
920d2a44 AC |
1771 | value); |
1772 | } | |
eb0d3137 | 1773 | |
cbfbd72a | 1774 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1775 | static unsigned int chars_per_line; |
920d2a44 AC |
1776 | static void |
1777 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1778 | struct cmd_list_element *c, const char *value) | |
1779 | { | |
3e43a32a MS |
1780 | fprintf_filtered (file, |
1781 | _("Number of characters gdb thinks " | |
1782 | "are in a line is %s.\n"), | |
920d2a44 AC |
1783 | value); |
1784 | } | |
eb0d3137 | 1785 | |
c906108c SS |
1786 | /* Current count of lines printed on this page, chars on this line. */ |
1787 | static unsigned int lines_printed, chars_printed; | |
1788 | ||
1789 | /* Buffer and start column of buffered text, for doing smarter word- | |
1790 | wrapping. When someone calls wrap_here(), we start buffering output | |
1791 | that comes through fputs_filtered(). If we see a newline, we just | |
1792 | spit it out and forget about the wrap_here(). If we see another | |
1793 | wrap_here(), we spit it out and remember the newer one. If we see | |
1794 | the end of the line, we spit out a newline, the indent, and then | |
1795 | the buffered output. */ | |
1796 | ||
1797 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1798 | are waiting to be output (they have already been counted in chars_printed). | |
1799 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1800 | static char *wrap_buffer; | |
1801 | ||
1802 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1803 | static char *wrap_pointer; | |
1804 | ||
1805 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1806 | is non-zero. */ | |
1807 | static char *wrap_indent; | |
1808 | ||
1809 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1810 | is not in effect. */ | |
1811 | static int wrap_column; | |
c906108c | 1812 | \f |
c5aa993b | 1813 | |
eb0d3137 MK |
1814 | /* Inialize the number of lines per page and chars per line. */ |
1815 | ||
c906108c | 1816 | void |
fba45db2 | 1817 | init_page_info (void) |
c906108c | 1818 | { |
5da1313b JK |
1819 | if (batch_flag) |
1820 | { | |
1821 | lines_per_page = UINT_MAX; | |
1822 | chars_per_line = UINT_MAX; | |
1823 | } | |
1824 | else | |
c906108c | 1825 | #if defined(TUI) |
5ecb1806 | 1826 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1827 | #endif |
1828 | { | |
eb0d3137 | 1829 | int rows, cols; |
c906108c | 1830 | |
ec145965 EZ |
1831 | #if defined(__GO32__) |
1832 | rows = ScreenRows (); | |
1833 | cols = ScreenCols (); | |
1834 | lines_per_page = rows; | |
1835 | chars_per_line = cols; | |
1836 | #else | |
eb0d3137 MK |
1837 | /* Make sure Readline has initialized its terminal settings. */ |
1838 | rl_reset_terminal (NULL); | |
c906108c | 1839 | |
eb0d3137 MK |
1840 | /* Get the screen size from Readline. */ |
1841 | rl_get_screen_size (&rows, &cols); | |
1842 | lines_per_page = rows; | |
1843 | chars_per_line = cols; | |
c906108c | 1844 | |
eb0d3137 MK |
1845 | /* Readline should have fetched the termcap entry for us. */ |
1846 | if (tgetnum ("li") < 0 || getenv ("EMACS")) | |
1847 | { | |
1848 | /* The number of lines per page is not mentioned in the | |
1849 | terminal description. This probably means that paging is | |
1850 | not useful (e.g. emacs shell window), so disable paging. */ | |
1851 | lines_per_page = UINT_MAX; | |
1852 | } | |
c906108c | 1853 | |
eb0d3137 | 1854 | /* FIXME: Get rid of this junk. */ |
c906108c | 1855 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) |
c906108c SS |
1856 | SIGWINCH_HANDLER (SIGWINCH); |
1857 | #endif | |
eb0d3137 | 1858 | |
c906108c | 1859 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1860 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1861 | lines_per_page = UINT_MAX; |
eb0d3137 | 1862 | #endif |
ec145965 | 1863 | } |
eb0d3137 MK |
1864 | |
1865 | set_screen_size (); | |
c5aa993b | 1866 | set_width (); |
c906108c SS |
1867 | } |
1868 | ||
5da1313b JK |
1869 | /* Helper for make_cleanup_restore_page_info. */ |
1870 | ||
1871 | static void | |
1872 | do_restore_page_info_cleanup (void *arg) | |
1873 | { | |
1874 | set_screen_size (); | |
1875 | set_width (); | |
1876 | } | |
1877 | ||
1878 | /* Provide cleanup for restoring the terminal size. */ | |
1879 | ||
1880 | struct cleanup * | |
1881 | make_cleanup_restore_page_info (void) | |
1882 | { | |
1883 | struct cleanup *back_to; | |
1884 | ||
1885 | back_to = make_cleanup (do_restore_page_info_cleanup, NULL); | |
1886 | make_cleanup_restore_uinteger (&lines_per_page); | |
1887 | make_cleanup_restore_uinteger (&chars_per_line); | |
1888 | ||
1889 | return back_to; | |
1890 | } | |
1891 | ||
1892 | /* Temporarily set BATCH_FLAG and the associated unlimited terminal size. | |
1893 | Provide cleanup for restoring the original state. */ | |
1894 | ||
1895 | struct cleanup * | |
1896 | set_batch_flag_and_make_cleanup_restore_page_info (void) | |
1897 | { | |
1898 | struct cleanup *back_to = make_cleanup_restore_page_info (); | |
1899 | ||
1900 | make_cleanup_restore_integer (&batch_flag); | |
1901 | batch_flag = 1; | |
1902 | init_page_info (); | |
1903 | ||
1904 | return back_to; | |
1905 | } | |
1906 | ||
eb0d3137 MK |
1907 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1908 | ||
1909 | static void | |
1910 | set_screen_size (void) | |
1911 | { | |
1912 | int rows = lines_per_page; | |
1913 | int cols = chars_per_line; | |
1914 | ||
1915 | if (rows <= 0) | |
1916 | rows = INT_MAX; | |
1917 | ||
1918 | if (cols <= 0) | |
0caa462c | 1919 | cols = INT_MAX; |
eb0d3137 MK |
1920 | |
1921 | /* Update Readline's idea of the terminal size. */ | |
1922 | rl_set_screen_size (rows, cols); | |
1923 | } | |
1924 | ||
1925 | /* Reinitialize WRAP_BUFFER according to the current value of | |
1926 | CHARS_PER_LINE. */ | |
1927 | ||
c906108c | 1928 | static void |
fba45db2 | 1929 | set_width (void) |
c906108c SS |
1930 | { |
1931 | if (chars_per_line == 0) | |
c5aa993b | 1932 | init_page_info (); |
c906108c SS |
1933 | |
1934 | if (!wrap_buffer) | |
1935 | { | |
1936 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1937 | wrap_buffer[0] = '\0'; | |
1938 | } | |
1939 | else | |
1940 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 1941 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
1942 | } |
1943 | ||
c5aa993b | 1944 | static void |
fba45db2 | 1945 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1946 | { |
eb0d3137 | 1947 | set_screen_size (); |
c906108c SS |
1948 | set_width (); |
1949 | } | |
1950 | ||
eb0d3137 MK |
1951 | static void |
1952 | set_height_command (char *args, int from_tty, struct cmd_list_element *c) | |
1953 | { | |
1954 | set_screen_size (); | |
1955 | } | |
1956 | ||
c906108c SS |
1957 | /* Wait, so the user can read what's on the screen. Prompt the user |
1958 | to continue by pressing RETURN. */ | |
1959 | ||
1960 | static void | |
fba45db2 | 1961 | prompt_for_continue (void) |
c906108c SS |
1962 | { |
1963 | char *ignore; | |
1964 | char cont_prompt[120]; | |
1965 | ||
1966 | if (annotation_level > 1) | |
a3f17187 | 1967 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
1968 | |
1969 | strcpy (cont_prompt, | |
1970 | "---Type <return> to continue, or q <return> to quit---"); | |
1971 | if (annotation_level > 1) | |
1972 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1973 | ||
1974 | /* We must do this *before* we call gdb_readline, else it will eventually | |
1975 | call us -- thinking that we're trying to print beyond the end of the | |
1976 | screen. */ | |
1977 | reinitialize_more_filter (); | |
1978 | ||
1979 | immediate_quit++; | |
1980 | /* On a real operating system, the user can quit with SIGINT. | |
1981 | But not on GO32. | |
1982 | ||
1983 | 'q' is provided on all systems so users don't have to change habits | |
1984 | from system to system, and because telling them what to do in | |
1985 | the prompt is more user-friendly than expecting them to think of | |
1986 | SIGINT. */ | |
1987 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
1988 | whereas control-C to gdb_readline will cause the user to get dumped | |
1989 | out to DOS. */ | |
b4f5539f | 1990 | ignore = gdb_readline_wrapper (cont_prompt); |
c906108c SS |
1991 | |
1992 | if (annotation_level > 1) | |
a3f17187 | 1993 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c SS |
1994 | |
1995 | if (ignore) | |
1996 | { | |
1997 | char *p = ignore; | |
5d502164 | 1998 | |
c906108c SS |
1999 | while (*p == ' ' || *p == '\t') |
2000 | ++p; | |
2001 | if (p[0] == 'q') | |
362646f5 | 2002 | async_request_quit (0); |
b8c9b27d | 2003 | xfree (ignore); |
c906108c SS |
2004 | } |
2005 | immediate_quit--; | |
2006 | ||
2007 | /* Now we have to do this again, so that GDB will know that it doesn't | |
2008 | need to save the ---Type <return>--- line at the top of the screen. */ | |
2009 | reinitialize_more_filter (); | |
2010 | ||
581e13c1 | 2011 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ |
c906108c SS |
2012 | } |
2013 | ||
2014 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
2015 | ||
2016 | void | |
fba45db2 | 2017 | reinitialize_more_filter (void) |
c906108c SS |
2018 | { |
2019 | lines_printed = 0; | |
2020 | chars_printed = 0; | |
2021 | } | |
2022 | ||
2023 | /* Indicate that if the next sequence of characters overflows the line, | |
581e13c1 | 2024 | a newline should be inserted here rather than when it hits the end. |
c906108c SS |
2025 | If INDENT is non-null, it is a string to be printed to indent the |
2026 | wrapped part on the next line. INDENT must remain accessible until | |
2027 | the next call to wrap_here() or until a newline is printed through | |
2028 | fputs_filtered(). | |
2029 | ||
2030 | If the line is already overfull, we immediately print a newline and | |
2031 | the indentation, and disable further wrapping. | |
2032 | ||
2033 | If we don't know the width of lines, but we know the page height, | |
2034 | we must not wrap words, but should still keep track of newlines | |
2035 | that were explicitly printed. | |
2036 | ||
2037 | INDENT should not contain tabs, as that will mess up the char count | |
2038 | on the next line. FIXME. | |
2039 | ||
2040 | This routine is guaranteed to force out any output which has been | |
2041 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
2042 | used to force out output from the wrap_buffer. */ | |
2043 | ||
2044 | void | |
fba45db2 | 2045 | wrap_here (char *indent) |
c906108c | 2046 | { |
581e13c1 | 2047 | /* This should have been allocated, but be paranoid anyway. */ |
c906108c | 2048 | if (!wrap_buffer) |
3e43a32a MS |
2049 | internal_error (__FILE__, __LINE__, |
2050 | _("failed internal consistency check")); | |
c906108c SS |
2051 | |
2052 | if (wrap_buffer[0]) | |
2053 | { | |
2054 | *wrap_pointer = '\0'; | |
2055 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
2056 | } | |
2057 | wrap_pointer = wrap_buffer; | |
2058 | wrap_buffer[0] = '\0'; | |
3e43a32a | 2059 | if (chars_per_line == UINT_MAX) /* No line overflow checking. */ |
c906108c SS |
2060 | { |
2061 | wrap_column = 0; | |
2062 | } | |
2063 | else if (chars_printed >= chars_per_line) | |
2064 | { | |
2065 | puts_filtered ("\n"); | |
2066 | if (indent != NULL) | |
2067 | puts_filtered (indent); | |
2068 | wrap_column = 0; | |
2069 | } | |
2070 | else | |
2071 | { | |
2072 | wrap_column = chars_printed; | |
2073 | if (indent == NULL) | |
2074 | wrap_indent = ""; | |
2075 | else | |
2076 | wrap_indent = indent; | |
2077 | } | |
2078 | } | |
2079 | ||
4a351cef | 2080 | /* Print input string to gdb_stdout, filtered, with wrap, |
581e13c1 | 2081 | arranging strings in columns of n chars. String can be |
4a351cef AF |
2082 | right or left justified in the column. Never prints |
2083 | trailing spaces. String should never be longer than | |
2084 | width. FIXME: this could be useful for the EXAMINE | |
581e13c1 | 2085 | command, which currently doesn't tabulate very well. */ |
4a351cef AF |
2086 | |
2087 | void | |
2088 | puts_filtered_tabular (char *string, int width, int right) | |
2089 | { | |
2090 | int spaces = 0; | |
2091 | int stringlen; | |
2092 | char *spacebuf; | |
2093 | ||
2094 | gdb_assert (chars_per_line > 0); | |
2095 | if (chars_per_line == UINT_MAX) | |
2096 | { | |
2097 | fputs_filtered (string, gdb_stdout); | |
2098 | fputs_filtered ("\n", gdb_stdout); | |
2099 | return; | |
2100 | } | |
2101 | ||
2102 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
2103 | fputs_filtered ("\n", gdb_stdout); | |
2104 | ||
2105 | if (width >= chars_per_line) | |
2106 | width = chars_per_line - 1; | |
2107 | ||
2108 | stringlen = strlen (string); | |
2109 | ||
2110 | if (chars_printed > 0) | |
2111 | spaces = width - (chars_printed - 1) % width - 1; | |
2112 | if (right) | |
2113 | spaces += width - stringlen; | |
2114 | ||
2115 | spacebuf = alloca (spaces + 1); | |
2116 | spacebuf[spaces] = '\0'; | |
2117 | while (spaces--) | |
2118 | spacebuf[spaces] = ' '; | |
2119 | ||
2120 | fputs_filtered (spacebuf, gdb_stdout); | |
2121 | fputs_filtered (string, gdb_stdout); | |
2122 | } | |
2123 | ||
2124 | ||
c906108c | 2125 | /* Ensure that whatever gets printed next, using the filtered output |
581e13c1 | 2126 | commands, starts at the beginning of the line. I.e. if there is |
c906108c | 2127 | any pending output for the current line, flush it and start a new |
581e13c1 | 2128 | line. Otherwise do nothing. */ |
c906108c SS |
2129 | |
2130 | void | |
fba45db2 | 2131 | begin_line (void) |
c906108c SS |
2132 | { |
2133 | if (chars_printed > 0) | |
2134 | { | |
2135 | puts_filtered ("\n"); | |
2136 | } | |
2137 | } | |
2138 | ||
ac9a91a7 | 2139 | |
c906108c SS |
2140 | /* Like fputs but if FILTER is true, pause after every screenful. |
2141 | ||
2142 | Regardless of FILTER can wrap at points other than the final | |
2143 | character of a line. | |
2144 | ||
2145 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
2146 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
2147 | anything. | |
2148 | ||
2149 | Note that a longjmp to top level may occur in this routine (only if | |
2150 | FILTER is true) (since prompt_for_continue may do so) so this | |
2151 | routine should not be called when cleanups are not in place. */ | |
2152 | ||
2153 | static void | |
fba45db2 KB |
2154 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
2155 | int filter) | |
c906108c SS |
2156 | { |
2157 | const char *lineptr; | |
2158 | ||
2159 | if (linebuffer == 0) | |
2160 | return; | |
2161 | ||
2162 | /* Don't do any filtering if it is disabled. */ | |
390a8aca | 2163 | if (stream != gdb_stdout |
b2e7f004 JK |
2164 | || !pagination_enabled |
2165 | || batch_flag | |
390a8aca | 2166 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) |
58dadb1b | 2167 | || top_level_interpreter () == NULL |
390a8aca | 2168 | || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) |
c906108c SS |
2169 | { |
2170 | fputs_unfiltered (linebuffer, stream); | |
2171 | return; | |
2172 | } | |
2173 | ||
2174 | /* Go through and output each character. Show line extension | |
2175 | when this is necessary; prompt user for new page when this is | |
2176 | necessary. */ | |
c5aa993b | 2177 | |
c906108c SS |
2178 | lineptr = linebuffer; |
2179 | while (*lineptr) | |
2180 | { | |
2181 | /* Possible new page. */ | |
8731e58e | 2182 | if (filter && (lines_printed >= lines_per_page - 1)) |
c906108c SS |
2183 | prompt_for_continue (); |
2184 | ||
2185 | while (*lineptr && *lineptr != '\n') | |
2186 | { | |
2187 | /* Print a single line. */ | |
2188 | if (*lineptr == '\t') | |
2189 | { | |
2190 | if (wrap_column) | |
2191 | *wrap_pointer++ = '\t'; | |
2192 | else | |
2193 | fputc_unfiltered ('\t', stream); | |
2194 | /* Shifting right by 3 produces the number of tab stops | |
2195 | we have already passed, and then adding one and | |
c5aa993b | 2196 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
2197 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
2198 | lineptr++; | |
2199 | } | |
2200 | else | |
2201 | { | |
2202 | if (wrap_column) | |
2203 | *wrap_pointer++ = *lineptr; | |
2204 | else | |
c5aa993b | 2205 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
2206 | chars_printed++; |
2207 | lineptr++; | |
2208 | } | |
c5aa993b | 2209 | |
c906108c SS |
2210 | if (chars_printed >= chars_per_line) |
2211 | { | |
2212 | unsigned int save_chars = chars_printed; | |
2213 | ||
2214 | chars_printed = 0; | |
2215 | lines_printed++; | |
2216 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
2217 | if chars_per_line is right, we probably just overflowed |
2218 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
2219 | if (wrap_column) |
2220 | fputc_unfiltered ('\n', stream); | |
2221 | ||
2222 | /* Possible new page. */ | |
2223 | if (lines_printed >= lines_per_page - 1) | |
2224 | prompt_for_continue (); | |
2225 | ||
581e13c1 | 2226 | /* Now output indentation and wrapped string. */ |
c906108c SS |
2227 | if (wrap_column) |
2228 | { | |
2229 | fputs_unfiltered (wrap_indent, stream); | |
581e13c1 MS |
2230 | *wrap_pointer = '\0'; /* Null-terminate saved stuff, */ |
2231 | fputs_unfiltered (wrap_buffer, stream); /* and eject it. */ | |
c906108c SS |
2232 | /* FIXME, this strlen is what prevents wrap_indent from |
2233 | containing tabs. However, if we recurse to print it | |
2234 | and count its chars, we risk trouble if wrap_indent is | |
581e13c1 | 2235 | longer than (the user settable) chars_per_line. |
c906108c SS |
2236 | Note also that this can set chars_printed > chars_per_line |
2237 | if we are printing a long string. */ | |
2238 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 2239 | + (save_chars - wrap_column); |
c906108c SS |
2240 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
2241 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
2242 | wrap_column = 0; /* And disable fancy wrap */ |
2243 | } | |
c906108c SS |
2244 | } |
2245 | } | |
2246 | ||
2247 | if (*lineptr == '\n') | |
2248 | { | |
2249 | chars_printed = 0; | |
3e43a32a MS |
2250 | wrap_here ((char *) 0); /* Spit out chars, cancel |
2251 | further wraps. */ | |
c906108c SS |
2252 | lines_printed++; |
2253 | fputc_unfiltered ('\n', stream); | |
2254 | lineptr++; | |
2255 | } | |
2256 | } | |
2257 | } | |
2258 | ||
2259 | void | |
fba45db2 | 2260 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
2261 | { |
2262 | fputs_maybe_filtered (linebuffer, stream, 1); | |
2263 | } | |
2264 | ||
2265 | int | |
fba45db2 | 2266 | putchar_unfiltered (int c) |
c906108c | 2267 | { |
11cf8741 | 2268 | char buf = c; |
e0627e85 | 2269 | |
d9fcf2fb | 2270 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
2271 | return c; |
2272 | } | |
2273 | ||
d1f4cff8 AC |
2274 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
2275 | May return nonlocally. */ | |
2276 | ||
2277 | int | |
2278 | putchar_filtered (int c) | |
2279 | { | |
2280 | return fputc_filtered (c, gdb_stdout); | |
2281 | } | |
2282 | ||
c906108c | 2283 | int |
fba45db2 | 2284 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 2285 | { |
11cf8741 | 2286 | char buf = c; |
e0627e85 | 2287 | |
d9fcf2fb | 2288 | ui_file_write (stream, &buf, 1); |
c906108c SS |
2289 | return c; |
2290 | } | |
2291 | ||
2292 | int | |
fba45db2 | 2293 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
2294 | { |
2295 | char buf[2]; | |
2296 | ||
2297 | buf[0] = c; | |
2298 | buf[1] = 0; | |
2299 | fputs_filtered (buf, stream); | |
2300 | return c; | |
2301 | } | |
2302 | ||
2303 | /* puts_debug is like fputs_unfiltered, except it prints special | |
2304 | characters in printable fashion. */ | |
2305 | ||
2306 | void | |
fba45db2 | 2307 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
2308 | { |
2309 | int ch; | |
2310 | ||
2311 | /* Print prefix and suffix after each line. */ | |
2312 | static int new_line = 1; | |
2313 | static int return_p = 0; | |
2314 | static char *prev_prefix = ""; | |
2315 | static char *prev_suffix = ""; | |
2316 | ||
2317 | if (*string == '\n') | |
2318 | return_p = 0; | |
2319 | ||
2320 | /* If the prefix is changing, print the previous suffix, a new line, | |
2321 | and the new prefix. */ | |
c5aa993b | 2322 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2323 | { |
9846de1b JM |
2324 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2325 | fputs_unfiltered ("\n", gdb_stdlog); | |
2326 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2327 | } |
2328 | ||
2329 | /* Print prefix if we printed a newline during the previous call. */ | |
2330 | if (new_line) | |
2331 | { | |
2332 | new_line = 0; | |
9846de1b | 2333 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2334 | } |
2335 | ||
2336 | prev_prefix = prefix; | |
2337 | prev_suffix = suffix; | |
2338 | ||
2339 | /* Output characters in a printable format. */ | |
2340 | while ((ch = *string++) != '\0') | |
2341 | { | |
2342 | switch (ch) | |
c5aa993b | 2343 | { |
c906108c SS |
2344 | default: |
2345 | if (isprint (ch)) | |
9846de1b | 2346 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2347 | |
2348 | else | |
9846de1b | 2349 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2350 | break; |
2351 | ||
c5aa993b JM |
2352 | case '\\': |
2353 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2354 | break; | |
2355 | case '\b': | |
2356 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2357 | break; | |
2358 | case '\f': | |
2359 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2360 | break; | |
2361 | case '\n': | |
2362 | new_line = 1; | |
2363 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2364 | break; | |
2365 | case '\r': | |
2366 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2367 | break; | |
2368 | case '\t': | |
2369 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2370 | break; | |
2371 | case '\v': | |
2372 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2373 | break; | |
2374 | } | |
c906108c SS |
2375 | |
2376 | return_p = ch == '\r'; | |
2377 | } | |
2378 | ||
2379 | /* Print suffix if we printed a newline. */ | |
2380 | if (new_line) | |
2381 | { | |
9846de1b JM |
2382 | fputs_unfiltered (suffix, gdb_stdlog); |
2383 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2384 | } |
2385 | } | |
2386 | ||
2387 | ||
2388 | /* Print a variable number of ARGS using format FORMAT. If this | |
2389 | information is going to put the amount written (since the last call | |
2390 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2391 | call prompt_for_continue to get the users permision to continue. | |
2392 | ||
2393 | Unlike fprintf, this function does not return a value. | |
2394 | ||
2395 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2396 | fprintf (takes a stream to write on), and printf (the usual). | |
2397 | ||
2398 | Note also that a longjmp to top level may occur in this routine | |
2399 | (since prompt_for_continue may do so) so this routine should not be | |
2400 | called when cleanups are not in place. */ | |
2401 | ||
2402 | static void | |
fba45db2 KB |
2403 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2404 | va_list args, int filter) | |
c906108c SS |
2405 | { |
2406 | char *linebuffer; | |
2407 | struct cleanup *old_cleanups; | |
2408 | ||
e623b504 | 2409 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2410 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2411 | fputs_maybe_filtered (linebuffer, stream, filter); |
2412 | do_cleanups (old_cleanups); | |
2413 | } | |
2414 | ||
2415 | ||
2416 | void | |
fba45db2 | 2417 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2418 | { |
2419 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2420 | } | |
2421 | ||
2422 | void | |
fba45db2 | 2423 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2424 | { |
2425 | char *linebuffer; | |
2426 | struct cleanup *old_cleanups; | |
2427 | ||
e623b504 | 2428 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2429 | old_cleanups = make_cleanup (xfree, linebuffer); |
75feb17d DJ |
2430 | if (debug_timestamp && stream == gdb_stdlog) |
2431 | { | |
2432 | struct timeval tm; | |
2433 | char *timestamp; | |
6e5abd65 | 2434 | int len, need_nl; |
75feb17d DJ |
2435 | |
2436 | gettimeofday (&tm, NULL); | |
6e5abd65 PA |
2437 | |
2438 | len = strlen (linebuffer); | |
2439 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); | |
2440 | ||
2441 | timestamp = xstrprintf ("%ld:%ld %s%s", | |
2442 | (long) tm.tv_sec, (long) tm.tv_usec, | |
2443 | linebuffer, | |
2444 | need_nl ? "\n": ""); | |
75feb17d DJ |
2445 | make_cleanup (xfree, timestamp); |
2446 | fputs_unfiltered (timestamp, stream); | |
2447 | } | |
6e5abd65 PA |
2448 | else |
2449 | fputs_unfiltered (linebuffer, stream); | |
c906108c SS |
2450 | do_cleanups (old_cleanups); |
2451 | } | |
2452 | ||
2453 | void | |
fba45db2 | 2454 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2455 | { |
2456 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2457 | } | |
2458 | ||
2459 | void | |
fba45db2 | 2460 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2461 | { |
2462 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2463 | } | |
2464 | ||
c906108c | 2465 | void |
8731e58e | 2466 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2467 | { |
2468 | va_list args; | |
e0627e85 | 2469 | |
c906108c | 2470 | va_start (args, format); |
c906108c SS |
2471 | vfprintf_filtered (stream, format, args); |
2472 | va_end (args); | |
2473 | } | |
2474 | ||
c906108c | 2475 | void |
8731e58e | 2476 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2477 | { |
2478 | va_list args; | |
e0627e85 | 2479 | |
c906108c | 2480 | va_start (args, format); |
c906108c SS |
2481 | vfprintf_unfiltered (stream, format, args); |
2482 | va_end (args); | |
2483 | } | |
2484 | ||
2485 | /* Like fprintf_filtered, but prints its result indented. | |
2486 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2487 | ||
c906108c | 2488 | void |
8731e58e AC |
2489 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2490 | ...) | |
c906108c SS |
2491 | { |
2492 | va_list args; | |
e0627e85 | 2493 | |
c906108c | 2494 | va_start (args, format); |
c906108c SS |
2495 | print_spaces_filtered (spaces, stream); |
2496 | ||
2497 | vfprintf_filtered (stream, format, args); | |
2498 | va_end (args); | |
2499 | } | |
2500 | ||
2501 | ||
c906108c | 2502 | void |
8731e58e | 2503 | printf_filtered (const char *format, ...) |
c906108c SS |
2504 | { |
2505 | va_list args; | |
e0627e85 | 2506 | |
c906108c | 2507 | va_start (args, format); |
c906108c SS |
2508 | vfprintf_filtered (gdb_stdout, format, args); |
2509 | va_end (args); | |
2510 | } | |
2511 | ||
2512 | ||
c906108c | 2513 | void |
8731e58e | 2514 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2515 | { |
2516 | va_list args; | |
e0627e85 | 2517 | |
c906108c | 2518 | va_start (args, format); |
c906108c SS |
2519 | vfprintf_unfiltered (gdb_stdout, format, args); |
2520 | va_end (args); | |
2521 | } | |
2522 | ||
2523 | /* Like printf_filtered, but prints it's result indented. | |
2524 | Called as printfi_filtered (spaces, format, ...); */ | |
2525 | ||
c906108c | 2526 | void |
8731e58e | 2527 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2528 | { |
2529 | va_list args; | |
e0627e85 | 2530 | |
c906108c | 2531 | va_start (args, format); |
c906108c SS |
2532 | print_spaces_filtered (spaces, gdb_stdout); |
2533 | vfprintf_filtered (gdb_stdout, format, args); | |
2534 | va_end (args); | |
2535 | } | |
2536 | ||
2537 | /* Easy -- but watch out! | |
2538 | ||
2539 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2540 | This one doesn't, and had better not! */ | |
2541 | ||
2542 | void | |
fba45db2 | 2543 | puts_filtered (const char *string) |
c906108c SS |
2544 | { |
2545 | fputs_filtered (string, gdb_stdout); | |
2546 | } | |
2547 | ||
2548 | void | |
fba45db2 | 2549 | puts_unfiltered (const char *string) |
c906108c SS |
2550 | { |
2551 | fputs_unfiltered (string, gdb_stdout); | |
2552 | } | |
2553 | ||
2554 | /* Return a pointer to N spaces and a null. The pointer is good | |
2555 | until the next call to here. */ | |
2556 | char * | |
fba45db2 | 2557 | n_spaces (int n) |
c906108c | 2558 | { |
392a587b JM |
2559 | char *t; |
2560 | static char *spaces = 0; | |
2561 | static int max_spaces = -1; | |
c906108c SS |
2562 | |
2563 | if (n > max_spaces) | |
2564 | { | |
2565 | if (spaces) | |
b8c9b27d | 2566 | xfree (spaces); |
c5aa993b JM |
2567 | spaces = (char *) xmalloc (n + 1); |
2568 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2569 | *--t = ' '; |
2570 | spaces[n] = '\0'; | |
2571 | max_spaces = n; | |
2572 | } | |
2573 | ||
2574 | return spaces + max_spaces - n; | |
2575 | } | |
2576 | ||
2577 | /* Print N spaces. */ | |
2578 | void | |
fba45db2 | 2579 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2580 | { |
2581 | fputs_filtered (n_spaces (n), stream); | |
2582 | } | |
2583 | \f | |
4a351cef | 2584 | /* C++/ObjC demangler stuff. */ |
c906108c | 2585 | |
389e51db AC |
2586 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2587 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2588 | If the name is not mangled, or the language for the name is unknown, or | |
581e13c1 | 2589 | demangling is off, the name is printed in its "raw" form. */ |
c906108c SS |
2590 | |
2591 | void | |
8731e58e AC |
2592 | fprintf_symbol_filtered (struct ui_file *stream, char *name, |
2593 | enum language lang, int arg_mode) | |
c906108c SS |
2594 | { |
2595 | char *demangled; | |
2596 | ||
2597 | if (name != NULL) | |
2598 | { | |
2599 | /* If user wants to see raw output, no problem. */ | |
2600 | if (!demangle) | |
2601 | { | |
2602 | fputs_filtered (name, stream); | |
2603 | } | |
2604 | else | |
2605 | { | |
9a3d7dfd | 2606 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2607 | fputs_filtered (demangled ? demangled : name, stream); |
2608 | if (demangled != NULL) | |
2609 | { | |
b8c9b27d | 2610 | xfree (demangled); |
c906108c SS |
2611 | } |
2612 | } | |
2613 | } | |
2614 | } | |
2615 | ||
2616 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2617 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2618 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2619 | |
c906108c SS |
2620 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2621 | This "feature" is useful when searching for matching C++ function names | |
2622 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
581e13c1 | 2623 | function). */ |
c906108c SS |
2624 | |
2625 | int | |
fba45db2 | 2626 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2627 | { |
2628 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2629 | { | |
2630 | while (isspace (*string1)) | |
2631 | { | |
2632 | string1++; | |
2633 | } | |
2634 | while (isspace (*string2)) | |
2635 | { | |
2636 | string2++; | |
2637 | } | |
559a7a62 JK |
2638 | if (case_sensitivity == case_sensitive_on && *string1 != *string2) |
2639 | break; | |
2640 | if (case_sensitivity == case_sensitive_off | |
2641 | && (tolower ((unsigned char) *string1) | |
2642 | != tolower ((unsigned char) *string2))) | |
2643 | break; | |
c906108c SS |
2644 | if (*string1 != '\0') |
2645 | { | |
2646 | string1++; | |
2647 | string2++; | |
2648 | } | |
2649 | } | |
2650 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2651 | } | |
2de7ced7 | 2652 | |
0fe19209 DC |
2653 | /* This is like strcmp except that it ignores whitespace and treats |
2654 | '(' as the first non-NULL character in terms of ordering. Like | |
2655 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2656 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2657 | according to that ordering. | |
2658 | ||
2659 | If a list is sorted according to this function and if you want to | |
2660 | find names in the list that match some fixed NAME according to | |
2661 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2662 | where this function would put NAME. | |
2663 | ||
559a7a62 JK |
2664 | This function must be neutral to the CASE_SENSITIVITY setting as the user |
2665 | may choose it during later lookup. Therefore this function always sorts | |
2666 | primarily case-insensitively and secondarily case-sensitively. | |
2667 | ||
0fe19209 DC |
2668 | Here are some examples of why using strcmp to sort is a bad idea: |
2669 | ||
2670 | Whitespace example: | |
2671 | ||
2672 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2673 | we try to do a search for "foo<char*>", strcmp will locate this | |
2674 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2675 | will start looking at strings beginning with "goo", and will never | |
2676 | see the correct match of "foo<char *>". | |
2677 | ||
2678 | Parenthesis example: | |
2679 | ||
2680 | In practice, this is less like to be an issue, but I'll give it a | |
2681 | shot. Let's assume that '$' is a legitimate character to occur in | |
2682 | symbols. (Which may well even be the case on some systems.) Then | |
2683 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2684 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2685 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2686 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2687 | "foo") is false, so it won't proceed to the actual match of | |
2688 | "foo(int)" with "foo". */ | |
2689 | ||
2690 | int | |
2691 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2692 | { | |
559a7a62 JK |
2693 | const char *saved_string1 = string1, *saved_string2 = string2; |
2694 | enum case_sensitivity case_pass = case_sensitive_off; | |
2695 | ||
2696 | for (;;) | |
0fe19209 | 2697 | { |
b11b1f88 JK |
2698 | /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'. |
2699 | Provide stub characters if we are already at the end of one of the | |
2700 | strings. */ | |
2701 | char c1 = 'X', c2 = 'X'; | |
2702 | ||
2703 | while (*string1 != '\0' && *string2 != '\0') | |
0fe19209 | 2704 | { |
b11b1f88 JK |
2705 | while (isspace (*string1)) |
2706 | string1++; | |
2707 | while (isspace (*string2)) | |
2708 | string2++; | |
2709 | ||
559a7a62 JK |
2710 | switch (case_pass) |
2711 | { | |
2712 | case case_sensitive_off: | |
2713 | c1 = tolower ((unsigned char) *string1); | |
2714 | c2 = tolower ((unsigned char) *string2); | |
2715 | break; | |
2716 | case case_sensitive_on: | |
b11b1f88 JK |
2717 | c1 = *string1; |
2718 | c2 = *string2; | |
559a7a62 JK |
2719 | break; |
2720 | } | |
b11b1f88 JK |
2721 | if (c1 != c2) |
2722 | break; | |
2723 | ||
2724 | if (*string1 != '\0') | |
2725 | { | |
2726 | string1++; | |
2727 | string2++; | |
2728 | } | |
0fe19209 | 2729 | } |
b11b1f88 JK |
2730 | |
2731 | switch (*string1) | |
0fe19209 | 2732 | { |
b11b1f88 JK |
2733 | /* Characters are non-equal unless they're both '\0'; we want to |
2734 | make sure we get the comparison right according to our | |
2735 | comparison in the cases where one of them is '\0' or '('. */ | |
2736 | case '\0': | |
2737 | if (*string2 == '\0') | |
559a7a62 | 2738 | break; |
b11b1f88 JK |
2739 | else |
2740 | return -1; | |
2741 | case '(': | |
2742 | if (*string2 == '\0') | |
2743 | return 1; | |
2744 | else | |
2745 | return -1; | |
2746 | default: | |
2747 | if (*string2 == '\0' || *string2 == '(') | |
2748 | return 1; | |
559a7a62 JK |
2749 | else if (c1 > c2) |
2750 | return 1; | |
2751 | else if (c1 < c2) | |
2752 | return -1; | |
2753 | /* PASSTHRU */ | |
0fe19209 | 2754 | } |
559a7a62 JK |
2755 | |
2756 | if (case_pass == case_sensitive_on) | |
2757 | return 0; | |
2758 | ||
2759 | /* Otherwise the strings were equal in case insensitive way, make | |
2760 | a more fine grained comparison in a case sensitive way. */ | |
2761 | ||
2762 | case_pass = case_sensitive_on; | |
2763 | string1 = saved_string1; | |
2764 | string2 = saved_string2; | |
0fe19209 | 2765 | } |
0fe19209 DC |
2766 | } |
2767 | ||
2de7ced7 DJ |
2768 | /* A simple comparison function with opposite semantics to strcmp. */ |
2769 | ||
2770 | int | |
2771 | streq (const char *lhs, const char *rhs) | |
2772 | { | |
2773 | return !strcmp (lhs, rhs); | |
2774 | } | |
c906108c | 2775 | \f |
c5aa993b | 2776 | |
c906108c | 2777 | /* |
c5aa993b JM |
2778 | ** subset_compare() |
2779 | ** Answer whether string_to_compare is a full or partial match to | |
2780 | ** template_string. The partial match must be in sequence starting | |
2781 | ** at index 0. | |
2782 | */ | |
c906108c | 2783 | int |
fba45db2 | 2784 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
2785 | { |
2786 | int match; | |
e0627e85 | 2787 | |
8731e58e AC |
2788 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
2789 | && strlen (string_to_compare) <= strlen (template_string)) | |
2790 | match = | |
2791 | (strncmp | |
2792 | (template_string, string_to_compare, strlen (string_to_compare)) == 0); | |
7a292a7a SS |
2793 | else |
2794 | match = 0; | |
2795 | return match; | |
2796 | } | |
c906108c | 2797 | |
7a292a7a | 2798 | static void |
fba45db2 | 2799 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
2800 | { |
2801 | pagination_enabled = 1; | |
2802 | } | |
2803 | ||
7a292a7a | 2804 | static void |
fba45db2 | 2805 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
2806 | { |
2807 | pagination_enabled = 0; | |
2808 | } | |
75feb17d DJ |
2809 | |
2810 | static void | |
2811 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
2812 | struct cmd_list_element *c, const char *value) | |
2813 | { | |
3e43a32a MS |
2814 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), |
2815 | value); | |
75feb17d | 2816 | } |
c906108c | 2817 | \f |
c5aa993b | 2818 | |
c906108c | 2819 | void |
fba45db2 | 2820 | initialize_utils (void) |
c906108c | 2821 | { |
35096d9d AC |
2822 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
2823 | Set number of characters gdb thinks are in a line."), _("\ | |
2824 | Show number of characters gdb thinks are in a line."), NULL, | |
2825 | set_width_command, | |
920d2a44 | 2826 | show_chars_per_line, |
35096d9d AC |
2827 | &setlist, &showlist); |
2828 | ||
2829 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
2830 | Set number of lines gdb thinks are in a page."), _("\ | |
2831 | Show number of lines gdb thinks are in a page."), NULL, | |
2832 | set_height_command, | |
920d2a44 | 2833 | show_lines_per_page, |
35096d9d | 2834 | &setlist, &showlist); |
c5aa993b | 2835 | |
c906108c SS |
2836 | init_page_info (); |
2837 | ||
5bf193a2 AC |
2838 | add_setshow_boolean_cmd ("pagination", class_support, |
2839 | &pagination_enabled, _("\ | |
2840 | Set state of pagination."), _("\ | |
2841 | Show state of pagination."), NULL, | |
2842 | NULL, | |
920d2a44 | 2843 | show_pagination_enabled, |
5bf193a2 | 2844 | &setlist, &showlist); |
4261bedc | 2845 | |
c906108c SS |
2846 | if (xdb_commands) |
2847 | { | |
c5aa993b | 2848 | add_com ("am", class_support, pagination_on_command, |
1bedd215 | 2849 | _("Enable pagination")); |
c5aa993b | 2850 | add_com ("sm", class_support, pagination_off_command, |
1bedd215 | 2851 | _("Disable pagination")); |
c906108c SS |
2852 | } |
2853 | ||
5bf193a2 AC |
2854 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, |
2855 | &sevenbit_strings, _("\ | |
2856 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
2857 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
2858 | NULL, | |
920d2a44 | 2859 | show_sevenbit_strings, |
5bf193a2 AC |
2860 | &setprintlist, &showprintlist); |
2861 | ||
75feb17d DJ |
2862 | add_setshow_boolean_cmd ("timestamp", class_maintenance, |
2863 | &debug_timestamp, _("\ | |
2864 | Set timestamping of debugging messages."), _("\ | |
2865 | Show timestamping of debugging messages."), _("\ | |
2866 | When set, debugging messages will be marked with seconds and microseconds."), | |
2867 | NULL, | |
2868 | show_debug_timestamp, | |
2869 | &setdebuglist, &showdebuglist); | |
c906108c SS |
2870 | } |
2871 | ||
581e13c1 | 2872 | /* Machine specific function to handle SIGWINCH signal. */ |
c906108c SS |
2873 | |
2874 | #ifdef SIGWINCH_HANDLER_BODY | |
c5aa993b | 2875 | SIGWINCH_HANDLER_BODY |
c906108c | 2876 | #endif |
581e13c1 MS |
2877 | /* Print routines to handle variable size regs, etc. */ |
2878 | /* Temporary storage using circular buffer. */ | |
c906108c | 2879 | #define NUMCELLS 16 |
0759e0bf | 2880 | #define CELLSIZE 50 |
c5aa993b | 2881 | static char * |
fba45db2 | 2882 | get_cell (void) |
c906108c SS |
2883 | { |
2884 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b | 2885 | static int cell = 0; |
e0627e85 | 2886 | |
c5aa993b JM |
2887 | if (++cell >= NUMCELLS) |
2888 | cell = 0; | |
c906108c SS |
2889 | return buf[cell]; |
2890 | } | |
2891 | ||
66bf4b3a | 2892 | const char * |
5af949e3 | 2893 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
2894 | { |
2895 | /* Truncate address to the size of a target address, avoiding shifts | |
2896 | larger or equal than the width of a CORE_ADDR. The local | |
2897 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
581e13c1 | 2898 | when it won't occur. */ |
66bf4b3a AC |
2899 | /* NOTE: This assumes that the significant address information is |
2900 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2901 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2902 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2903 | ||
5af949e3 | 2904 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
2905 | |
2906 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2907 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2908 | return hex_string (addr); | |
2909 | } | |
2910 | ||
f1310107 TJB |
2911 | /* This function is described in "defs.h". */ |
2912 | ||
2913 | const char * | |
2914 | print_core_address (struct gdbarch *gdbarch, CORE_ADDR address) | |
2915 | { | |
2916 | int addr_bit = gdbarch_addr_bit (gdbarch); | |
2917 | ||
2918 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2919 | address &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2920 | ||
2921 | /* FIXME: cagney/2002-05-03: Need local_address_string() function | |
2922 | that returns the language localized string formatted to a width | |
2923 | based on gdbarch_addr_bit. */ | |
2924 | if (addr_bit <= 32) | |
2925 | return hex_string_custom (address, 8); | |
2926 | else | |
2927 | return hex_string_custom (address, 16); | |
2928 | } | |
2929 | ||
8e3b41a9 JK |
2930 | /* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */ |
2931 | ||
2932 | hashval_t | |
2933 | core_addr_hash (const void *ap) | |
2934 | { | |
2935 | const CORE_ADDR *addrp = ap; | |
2936 | ||
2937 | return *addrp; | |
2938 | } | |
2939 | ||
2940 | /* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */ | |
2941 | ||
2942 | int | |
2943 | core_addr_eq (const void *ap, const void *bp) | |
2944 | { | |
2945 | const CORE_ADDR *addr_ap = ap; | |
2946 | const CORE_ADDR *addr_bp = bp; | |
2947 | ||
2948 | return *addr_ap == *addr_bp; | |
2949 | } | |
2950 | ||
8cf46f62 MK |
2951 | static char * |
2952 | decimal2str (char *sign, ULONGEST addr, int width) | |
104c1213 | 2953 | { |
8cf46f62 | 2954 | /* Steal code from valprint.c:print_decimal(). Should this worry |
581e13c1 | 2955 | about the real size of addr as the above does? */ |
104c1213 | 2956 | unsigned long temp[3]; |
8cf46f62 | 2957 | char *str = get_cell (); |
104c1213 | 2958 | int i = 0; |
5d502164 | 2959 | |
104c1213 JM |
2960 | do |
2961 | { | |
2962 | temp[i] = addr % (1000 * 1000 * 1000); | |
2963 | addr /= (1000 * 1000 * 1000); | |
2964 | i++; | |
bb599908 | 2965 | width -= 9; |
104c1213 JM |
2966 | } |
2967 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 2968 | |
bb599908 PH |
2969 | width += 9; |
2970 | if (width < 0) | |
2971 | width = 0; | |
8cf46f62 | 2972 | |
104c1213 JM |
2973 | switch (i) |
2974 | { | |
2975 | case 1: | |
8cf46f62 | 2976 | xsnprintf (str, CELLSIZE, "%s%0*lu", sign, width, temp[0]); |
104c1213 JM |
2977 | break; |
2978 | case 2: | |
8cf46f62 MK |
2979 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu", sign, width, |
2980 | temp[1], temp[0]); | |
104c1213 JM |
2981 | break; |
2982 | case 3: | |
8cf46f62 MK |
2983 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu%09lu", sign, width, |
2984 | temp[2], temp[1], temp[0]); | |
bb599908 PH |
2985 | break; |
2986 | default: | |
2987 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2988 | _("failed internal consistency check")); |
bb599908 | 2989 | } |
8cf46f62 MK |
2990 | |
2991 | return str; | |
bb599908 PH |
2992 | } |
2993 | ||
8cf46f62 MK |
2994 | static char * |
2995 | octal2str (ULONGEST addr, int width) | |
bb599908 PH |
2996 | { |
2997 | unsigned long temp[3]; | |
8cf46f62 | 2998 | char *str = get_cell (); |
bb599908 | 2999 | int i = 0; |
5d502164 | 3000 | |
bb599908 PH |
3001 | do |
3002 | { | |
3003 | temp[i] = addr % (0100000 * 0100000); | |
3004 | addr /= (0100000 * 0100000); | |
3005 | i++; | |
3006 | width -= 10; | |
3007 | } | |
3008 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 3009 | |
bb599908 PH |
3010 | width += 10; |
3011 | if (width < 0) | |
3012 | width = 0; | |
8cf46f62 | 3013 | |
bb599908 PH |
3014 | switch (i) |
3015 | { | |
3016 | case 1: | |
3017 | if (temp[0] == 0) | |
8cf46f62 | 3018 | xsnprintf (str, CELLSIZE, "%*o", width, 0); |
bb599908 | 3019 | else |
8cf46f62 | 3020 | xsnprintf (str, CELLSIZE, "0%0*lo", width, temp[0]); |
bb599908 PH |
3021 | break; |
3022 | case 2: | |
8cf46f62 | 3023 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo", width, temp[1], temp[0]); |
bb599908 PH |
3024 | break; |
3025 | case 3: | |
8cf46f62 MK |
3026 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo%010lo", width, |
3027 | temp[2], temp[1], temp[0]); | |
104c1213 JM |
3028 | break; |
3029 | default: | |
8731e58e | 3030 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 3031 | _("failed internal consistency check")); |
104c1213 | 3032 | } |
8cf46f62 MK |
3033 | |
3034 | return str; | |
104c1213 JM |
3035 | } |
3036 | ||
3037 | char * | |
623d3eb1 | 3038 | pulongest (ULONGEST u) |
104c1213 | 3039 | { |
623d3eb1 | 3040 | return decimal2str ("", u, 0); |
104c1213 JM |
3041 | } |
3042 | ||
3043 | char * | |
623d3eb1 | 3044 | plongest (LONGEST l) |
104c1213 | 3045 | { |
623d3eb1 DE |
3046 | if (l < 0) |
3047 | return decimal2str ("-", -l, 0); | |
104c1213 | 3048 | else |
623d3eb1 | 3049 | return decimal2str ("", l, 0); |
104c1213 JM |
3050 | } |
3051 | ||
8cf46f62 | 3052 | /* Eliminate warning from compiler on 32-bit systems. */ |
5683e87a AC |
3053 | static int thirty_two = 32; |
3054 | ||
104c1213 | 3055 | char * |
5683e87a | 3056 | phex (ULONGEST l, int sizeof_l) |
104c1213 | 3057 | { |
45a1e866 | 3058 | char *str; |
8cf46f62 | 3059 | |
5683e87a | 3060 | switch (sizeof_l) |
104c1213 JM |
3061 | { |
3062 | case 8: | |
45a1e866 | 3063 | str = get_cell (); |
8cf46f62 MK |
3064 | xsnprintf (str, CELLSIZE, "%08lx%08lx", |
3065 | (unsigned long) (l >> thirty_two), | |
3066 | (unsigned long) (l & 0xffffffff)); | |
104c1213 JM |
3067 | break; |
3068 | case 4: | |
45a1e866 | 3069 | str = get_cell (); |
8cf46f62 | 3070 | xsnprintf (str, CELLSIZE, "%08lx", (unsigned long) l); |
104c1213 JM |
3071 | break; |
3072 | case 2: | |
45a1e866 | 3073 | str = get_cell (); |
8cf46f62 | 3074 | xsnprintf (str, CELLSIZE, "%04x", (unsigned short) (l & 0xffff)); |
104c1213 JM |
3075 | break; |
3076 | default: | |
45a1e866 | 3077 | str = phex (l, sizeof (l)); |
5683e87a | 3078 | break; |
104c1213 | 3079 | } |
8cf46f62 | 3080 | |
5683e87a | 3081 | return str; |
104c1213 JM |
3082 | } |
3083 | ||
c5aa993b | 3084 | char * |
5683e87a | 3085 | phex_nz (ULONGEST l, int sizeof_l) |
c906108c | 3086 | { |
faf833ca | 3087 | char *str; |
8cf46f62 | 3088 | |
5683e87a | 3089 | switch (sizeof_l) |
c906108c | 3090 | { |
c5aa993b JM |
3091 | case 8: |
3092 | { | |
5683e87a | 3093 | unsigned long high = (unsigned long) (l >> thirty_two); |
5d502164 | 3094 | |
faf833ca | 3095 | str = get_cell (); |
c5aa993b | 3096 | if (high == 0) |
8cf46f62 MK |
3097 | xsnprintf (str, CELLSIZE, "%lx", |
3098 | (unsigned long) (l & 0xffffffff)); | |
c5aa993b | 3099 | else |
8cf46f62 MK |
3100 | xsnprintf (str, CELLSIZE, "%lx%08lx", high, |
3101 | (unsigned long) (l & 0xffffffff)); | |
c906108c | 3102 | break; |
c5aa993b JM |
3103 | } |
3104 | case 4: | |
faf833ca | 3105 | str = get_cell (); |
8cf46f62 | 3106 | xsnprintf (str, CELLSIZE, "%lx", (unsigned long) l); |
c5aa993b JM |
3107 | break; |
3108 | case 2: | |
faf833ca | 3109 | str = get_cell (); |
8cf46f62 | 3110 | xsnprintf (str, CELLSIZE, "%x", (unsigned short) (l & 0xffff)); |
c5aa993b JM |
3111 | break; |
3112 | default: | |
faf833ca | 3113 | str = phex_nz (l, sizeof (l)); |
5683e87a | 3114 | break; |
c906108c | 3115 | } |
8cf46f62 | 3116 | |
5683e87a | 3117 | return str; |
c906108c | 3118 | } |
ac2e2ef7 | 3119 | |
0759e0bf AC |
3120 | /* Converts a LONGEST to a C-format hexadecimal literal and stores it |
3121 | in a static string. Returns a pointer to this string. */ | |
3122 | char * | |
3123 | hex_string (LONGEST num) | |
3124 | { | |
3125 | char *result = get_cell (); | |
e0627e85 | 3126 | |
8cf46f62 | 3127 | xsnprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num))); |
0759e0bf AC |
3128 | return result; |
3129 | } | |
3130 | ||
3131 | /* Converts a LONGEST number to a C-format hexadecimal literal and | |
3132 | stores it in a static string. Returns a pointer to this string | |
3133 | that is valid until the next call. The number is padded on the | |
3134 | left with 0s to at least WIDTH characters. */ | |
3135 | char * | |
3136 | hex_string_custom (LONGEST num, int width) | |
3137 | { | |
3138 | char *result = get_cell (); | |
3139 | char *result_end = result + CELLSIZE - 1; | |
3140 | const char *hex = phex_nz (num, sizeof (num)); | |
3141 | int hex_len = strlen (hex); | |
3142 | ||
3143 | if (hex_len > width) | |
3144 | width = hex_len; | |
3145 | if (width + 2 >= CELLSIZE) | |
3e43a32a MS |
3146 | internal_error (__FILE__, __LINE__, _("\ |
3147 | hex_string_custom: insufficient space to store result")); | |
0759e0bf AC |
3148 | |
3149 | strcpy (result_end - width - 2, "0x"); | |
3150 | memset (result_end - width, '0', width); | |
3151 | strcpy (result_end - hex_len, hex); | |
3152 | return result_end - width - 2; | |
3153 | } | |
ac2e2ef7 | 3154 | |
bb599908 PH |
3155 | /* Convert VAL to a numeral in the given radix. For |
3156 | * radix 10, IS_SIGNED may be true, indicating a signed quantity; | |
3157 | * otherwise VAL is interpreted as unsigned. If WIDTH is supplied, | |
3158 | * it is the minimum width (0-padded if needed). USE_C_FORMAT means | |
3159 | * to use C format in all cases. If it is false, then 'x' | |
581e13c1 | 3160 | * and 'o' formats do not include a prefix (0x or leading 0). */ |
bb599908 PH |
3161 | |
3162 | char * | |
3163 | int_string (LONGEST val, int radix, int is_signed, int width, | |
3164 | int use_c_format) | |
3165 | { | |
3166 | switch (radix) | |
3167 | { | |
3168 | case 16: | |
3169 | { | |
3170 | char *result; | |
5d502164 | 3171 | |
bb599908 PH |
3172 | if (width == 0) |
3173 | result = hex_string (val); | |
3174 | else | |
3175 | result = hex_string_custom (val, width); | |
3176 | if (! use_c_format) | |
3177 | result += 2; | |
3178 | return result; | |
3179 | } | |
3180 | case 10: | |
3181 | { | |
bb599908 | 3182 | if (is_signed && val < 0) |
8cf46f62 | 3183 | return decimal2str ("-", -val, width); |
bb599908 | 3184 | else |
8cf46f62 | 3185 | return decimal2str ("", val, width); |
bb599908 PH |
3186 | } |
3187 | case 8: | |
3188 | { | |
8cf46f62 | 3189 | char *result = octal2str (val, width); |
5d502164 | 3190 | |
bb599908 PH |
3191 | if (use_c_format || val == 0) |
3192 | return result; | |
3193 | else | |
3194 | return result + 1; | |
3195 | } | |
3196 | default: | |
3197 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3198 | _("failed internal consistency check")); |
bb599908 PH |
3199 | } |
3200 | } | |
3201 | ||
03dd37c3 AC |
3202 | /* Convert a CORE_ADDR into a string. */ |
3203 | const char * | |
3204 | core_addr_to_string (const CORE_ADDR addr) | |
49b563f9 KS |
3205 | { |
3206 | char *str = get_cell (); | |
e0627e85 | 3207 | |
49b563f9 KS |
3208 | strcpy (str, "0x"); |
3209 | strcat (str, phex (addr, sizeof (addr))); | |
3210 | return str; | |
3211 | } | |
3212 | ||
3213 | const char * | |
3214 | core_addr_to_string_nz (const CORE_ADDR addr) | |
03dd37c3 AC |
3215 | { |
3216 | char *str = get_cell (); | |
e0627e85 | 3217 | |
03dd37c3 AC |
3218 | strcpy (str, "0x"); |
3219 | strcat (str, phex_nz (addr, sizeof (addr))); | |
3220 | return str; | |
3221 | } | |
3222 | ||
3223 | /* Convert a string back into a CORE_ADDR. */ | |
3224 | CORE_ADDR | |
3225 | string_to_core_addr (const char *my_string) | |
3226 | { | |
3227 | CORE_ADDR addr = 0; | |
9544c605 | 3228 | |
03dd37c3 AC |
3229 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
3230 | { | |
ced572fe | 3231 | /* Assume that it is in hex. */ |
03dd37c3 | 3232 | int i; |
5d502164 | 3233 | |
03dd37c3 AC |
3234 | for (i = 2; my_string[i] != '\0'; i++) |
3235 | { | |
3236 | if (isdigit (my_string[i])) | |
3237 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 3238 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
3239 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
3240 | else | |
63f06803 | 3241 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
3242 | } |
3243 | } | |
3244 | else | |
3245 | { | |
3246 | /* Assume that it is in decimal. */ | |
3247 | int i; | |
5d502164 | 3248 | |
03dd37c3 AC |
3249 | for (i = 0; my_string[i] != '\0'; i++) |
3250 | { | |
3251 | if (isdigit (my_string[i])) | |
3252 | addr = (my_string[i] - '0') + (addr * 10); | |
3253 | else | |
63f06803 | 3254 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
3255 | } |
3256 | } | |
9544c605 | 3257 | |
03dd37c3 AC |
3258 | return addr; |
3259 | } | |
58d370e0 | 3260 | |
17ea7499 CES |
3261 | const char * |
3262 | host_address_to_string (const void *addr) | |
3263 | { | |
3264 | char *str = get_cell (); | |
ea8992ce | 3265 | |
773698b5 | 3266 | xsnprintf (str, CELLSIZE, "0x%s", phex_nz ((uintptr_t) addr, sizeof (addr))); |
17ea7499 CES |
3267 | return str; |
3268 | } | |
3269 | ||
58d370e0 TT |
3270 | char * |
3271 | gdb_realpath (const char *filename) | |
3272 | { | |
70d35819 AC |
3273 | /* Method 1: The system has a compile time upper bound on a filename |
3274 | path. Use that and realpath() to canonicalize the name. This is | |
3275 | the most common case. Note that, if there isn't a compile time | |
3276 | upper bound, you want to avoid realpath() at all costs. */ | |
a4db0f07 | 3277 | #if defined(HAVE_REALPATH) |
70d35819 | 3278 | { |
a4db0f07 | 3279 | # if defined (PATH_MAX) |
70d35819 | 3280 | char buf[PATH_MAX]; |
a4db0f07 RH |
3281 | # define USE_REALPATH |
3282 | # elif defined (MAXPATHLEN) | |
70d35819 | 3283 | char buf[MAXPATHLEN]; |
a4db0f07 RH |
3284 | # define USE_REALPATH |
3285 | # endif | |
70d35819 | 3286 | # if defined (USE_REALPATH) |
82c0260e | 3287 | const char *rp = realpath (filename, buf); |
5d502164 | 3288 | |
70d35819 AC |
3289 | if (rp == NULL) |
3290 | rp = filename; | |
3291 | return xstrdup (rp); | |
70d35819 | 3292 | # endif |
6f88d630 | 3293 | } |
a4db0f07 RH |
3294 | #endif /* HAVE_REALPATH */ |
3295 | ||
70d35819 AC |
3296 | /* Method 2: The host system (i.e., GNU) has the function |
3297 | canonicalize_file_name() which malloc's a chunk of memory and | |
3298 | returns that, use that. */ | |
3299 | #if defined(HAVE_CANONICALIZE_FILE_NAME) | |
3300 | { | |
3301 | char *rp = canonicalize_file_name (filename); | |
5d502164 | 3302 | |
70d35819 AC |
3303 | if (rp == NULL) |
3304 | return xstrdup (filename); | |
3305 | else | |
3306 | return rp; | |
3307 | } | |
58d370e0 | 3308 | #endif |
70d35819 | 3309 | |
6411e720 AC |
3310 | /* FIXME: cagney/2002-11-13: |
3311 | ||
3312 | Method 2a: Use realpath() with a NULL buffer. Some systems, due | |
7a9dd1b2 | 3313 | to the problems described in method 3, have modified their |
6411e720 AC |
3314 | realpath() implementation so that it will allocate a buffer when |
3315 | NULL is passed in. Before this can be used, though, some sort of | |
3316 | configure time test would need to be added. Otherwize the code | |
3317 | will likely core dump. */ | |
3318 | ||
70d35819 AC |
3319 | /* Method 3: Now we're getting desperate! The system doesn't have a |
3320 | compile time buffer size and no alternative function. Query the | |
3321 | OS, using pathconf(), for the buffer limit. Care is needed | |
3322 | though, some systems do not limit PATH_MAX (return -1 for | |
3323 | pathconf()) making it impossible to pass a correctly sized buffer | |
3324 | to realpath() (it could always overflow). On those systems, we | |
3325 | skip this. */ | |
3326 | #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA) | |
3327 | { | |
3328 | /* Find out the max path size. */ | |
3329 | long path_max = pathconf ("/", _PC_PATH_MAX); | |
5d502164 | 3330 | |
70d35819 AC |
3331 | if (path_max > 0) |
3332 | { | |
3333 | /* PATH_MAX is bounded. */ | |
3334 | char *buf = alloca (path_max); | |
3335 | char *rp = realpath (filename, buf); | |
5d502164 | 3336 | |
70d35819 AC |
3337 | return xstrdup (rp ? rp : filename); |
3338 | } | |
3339 | } | |
3340 | #endif | |
3341 | ||
9c5e4386 JB |
3342 | /* The MS Windows method. If we don't have realpath, we assume we |
3343 | don't have symlinks and just canonicalize to a Windows absolute | |
3344 | path. GetFullPath converts ../ and ./ in relative paths to | |
3345 | absolute paths, filling in current drive if one is not given | |
3346 | or using the current directory of a specified drive (eg, "E:foo"). | |
3347 | It also converts all forward slashes to back slashes. */ | |
3348 | /* The file system is case-insensitive but case-preserving. | |
3349 | So we do not lowercase the path. Otherwise, we might not | |
3350 | be able to display the original casing in a given path. */ | |
3351 | #if defined (_WIN32) | |
3352 | { | |
3353 | char buf[MAX_PATH]; | |
3354 | DWORD len = GetFullPathName (filename, MAX_PATH, buf, NULL); | |
3355 | ||
3356 | if (len > 0 && len < MAX_PATH) | |
3357 | return xstrdup (buf); | |
3358 | } | |
3359 | #endif | |
3360 | ||
70d35819 AC |
3361 | /* This system is a lost cause, just dup the buffer. */ |
3362 | return xstrdup (filename); | |
58d370e0 | 3363 | } |
303c8ebd JB |
3364 | |
3365 | /* Return a copy of FILENAME, with its directory prefix canonicalized | |
3366 | by gdb_realpath. */ | |
3367 | ||
3368 | char * | |
3369 | xfullpath (const char *filename) | |
3370 | { | |
3371 | const char *base_name = lbasename (filename); | |
3372 | char *dir_name; | |
3373 | char *real_path; | |
3374 | char *result; | |
3375 | ||
3376 | /* Extract the basename of filename, and return immediately | |
581e13c1 | 3377 | a copy of filename if it does not contain any directory prefix. */ |
303c8ebd JB |
3378 | if (base_name == filename) |
3379 | return xstrdup (filename); | |
3380 | ||
3381 | dir_name = alloca ((size_t) (base_name - filename + 2)); | |
3382 | /* Allocate enough space to store the dir_name + plus one extra | |
3383 | character sometimes needed under Windows (see below), and | |
581e13c1 | 3384 | then the closing \000 character. */ |
303c8ebd JB |
3385 | strncpy (dir_name, filename, base_name - filename); |
3386 | dir_name[base_name - filename] = '\000'; | |
3387 | ||
3388 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3389 | /* We need to be careful when filename is of the form 'd:foo', which | |
3390 | is equivalent of d:./foo, which is totally different from d:/foo. */ | |
8731e58e | 3391 | if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':') |
303c8ebd JB |
3392 | { |
3393 | dir_name[2] = '.'; | |
3394 | dir_name[3] = '\000'; | |
3395 | } | |
3396 | #endif | |
3397 | ||
3398 | /* Canonicalize the directory prefix, and build the resulting | |
581e13c1 | 3399 | filename. If the dirname realpath already contains an ending |
303c8ebd JB |
3400 | directory separator, avoid doubling it. */ |
3401 | real_path = gdb_realpath (dir_name); | |
3402 | if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1])) | |
c4f7c687 | 3403 | result = concat (real_path, base_name, (char *) NULL); |
303c8ebd | 3404 | else |
c4f7c687 | 3405 | result = concat (real_path, SLASH_STRING, base_name, (char *) NULL); |
303c8ebd JB |
3406 | |
3407 | xfree (real_path); | |
3408 | return result; | |
3409 | } | |
5b5d99cf JB |
3410 | |
3411 | ||
3412 | /* This is the 32-bit CRC function used by the GNU separate debug | |
3413 | facility. An executable may contain a section named | |
3414 | .gnu_debuglink, which holds the name of a separate executable file | |
3415 | containing its debug info, and a checksum of that file's contents, | |
3416 | computed using this function. */ | |
3417 | unsigned long | |
3418 | gnu_debuglink_crc32 (unsigned long crc, unsigned char *buf, size_t len) | |
3419 | { | |
6e0a4fbc | 3420 | static const unsigned int crc32_table[256] = { |
8731e58e AC |
3421 | 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, |
3422 | 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, | |
3423 | 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, | |
3424 | 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, | |
3425 | 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, | |
3426 | 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, | |
3427 | 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, | |
3428 | 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, | |
3429 | 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, | |
3430 | 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, | |
3431 | 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, | |
3432 | 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, | |
3433 | 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, | |
3434 | 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, | |
3435 | 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, | |
3436 | 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, | |
3437 | 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, | |
3438 | 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, | |
3439 | 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, | |
3440 | 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, | |
3441 | 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, | |
3442 | 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, | |
3443 | 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, | |
3444 | 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, | |
3445 | 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, | |
3446 | 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, | |
3447 | 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, | |
3448 | 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, | |
3449 | 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, | |
3450 | 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, | |
3451 | 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, | |
3452 | 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, | |
3453 | 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, | |
3454 | 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, | |
3455 | 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, | |
3456 | 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, | |
3457 | 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, | |
3458 | 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, | |
3459 | 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, | |
3460 | 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, | |
3461 | 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, | |
3462 | 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, | |
3463 | 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, | |
3464 | 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, | |
3465 | 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, | |
3466 | 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, | |
3467 | 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, | |
3468 | 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, | |
3469 | 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, | |
3470 | 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, | |
3471 | 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, | |
3472 | 0x2d02ef8d | |
3473 | }; | |
5b5d99cf JB |
3474 | unsigned char *end; |
3475 | ||
3476 | crc = ~crc & 0xffffffff; | |
3477 | for (end = buf + len; buf < end; ++buf) | |
3478 | crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8); | |
82ae4854 | 3479 | return ~crc & 0xffffffff; |
5b5d99cf | 3480 | } |
5b03f266 AC |
3481 | |
3482 | ULONGEST | |
3483 | align_up (ULONGEST v, int n) | |
3484 | { | |
3485 | /* Check that N is really a power of two. */ | |
3486 | gdb_assert (n && (n & (n-1)) == 0); | |
3487 | return (v + n - 1) & -n; | |
3488 | } | |
3489 | ||
3490 | ULONGEST | |
3491 | align_down (ULONGEST v, int n) | |
3492 | { | |
3493 | /* Check that N is really a power of two. */ | |
3494 | gdb_assert (n && (n & (n-1)) == 0); | |
3495 | return (v & -n); | |
3496 | } | |
ae5a43e0 DJ |
3497 | |
3498 | /* Allocation function for the libiberty hash table which uses an | |
3499 | obstack. The obstack is passed as DATA. */ | |
3500 | ||
3501 | void * | |
3502 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
3503 | { | |
3504 | unsigned int total = size * count; | |
3505 | void *ptr = obstack_alloc ((struct obstack *) data, total); | |
e0627e85 | 3506 | |
ae5a43e0 DJ |
3507 | memset (ptr, 0, total); |
3508 | return ptr; | |
3509 | } | |
3510 | ||
3511 | /* Trivial deallocation function for the libiberty splay tree and hash | |
3512 | table - don't deallocate anything. Rely on later deletion of the | |
3513 | obstack. DATA will be the obstack, although it is not needed | |
3514 | here. */ | |
3515 | ||
3516 | void | |
3517 | dummy_obstack_deallocate (void *object, void *data) | |
3518 | { | |
3519 | return; | |
3520 | } | |
253c8abb DJ |
3521 | |
3522 | /* The bit offset of the highest byte in a ULONGEST, for overflow | |
3523 | checking. */ | |
3524 | ||
3525 | #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT) | |
3526 | ||
3527 | /* True (non-zero) iff DIGIT is a valid digit in radix BASE, | |
3528 | where 2 <= BASE <= 36. */ | |
3529 | ||
3530 | static int | |
3531 | is_digit_in_base (unsigned char digit, int base) | |
3532 | { | |
3533 | if (!isalnum (digit)) | |
3534 | return 0; | |
3535 | if (base <= 10) | |
3536 | return (isdigit (digit) && digit < base + '0'); | |
3537 | else | |
3538 | return (isdigit (digit) || tolower (digit) < base - 10 + 'a'); | |
3539 | } | |
3540 | ||
3541 | static int | |
3542 | digit_to_int (unsigned char c) | |
3543 | { | |
3544 | if (isdigit (c)) | |
3545 | return c - '0'; | |
3546 | else | |
3547 | return tolower (c) - 'a' + 10; | |
3548 | } | |
3549 | ||
3550 | /* As for strtoul, but for ULONGEST results. */ | |
3551 | ||
3552 | ULONGEST | |
3553 | strtoulst (const char *num, const char **trailer, int base) | |
3554 | { | |
3555 | unsigned int high_part; | |
3556 | ULONGEST result; | |
3557 | int minus = 0; | |
3558 | int i = 0; | |
3559 | ||
3560 | /* Skip leading whitespace. */ | |
3561 | while (isspace (num[i])) | |
3562 | i++; | |
3563 | ||
3564 | /* Handle prefixes. */ | |
3565 | if (num[i] == '+') | |
3566 | i++; | |
3567 | else if (num[i] == '-') | |
3568 | { | |
3569 | minus = 1; | |
3570 | i++; | |
3571 | } | |
3572 | ||
3573 | if (base == 0 || base == 16) | |
3574 | { | |
3575 | if (num[i] == '0' && (num[i + 1] == 'x' || num[i + 1] == 'X')) | |
3576 | { | |
3577 | i += 2; | |
3578 | if (base == 0) | |
3579 | base = 16; | |
3580 | } | |
3581 | } | |
3582 | ||
3583 | if (base == 0 && num[i] == '0') | |
3584 | base = 8; | |
3585 | ||
3586 | if (base == 0) | |
3587 | base = 10; | |
3588 | ||
3589 | if (base < 2 || base > 36) | |
3590 | { | |
3591 | errno = EINVAL; | |
3592 | return 0; | |
3593 | } | |
3594 | ||
3595 | result = high_part = 0; | |
3596 | for (; is_digit_in_base (num[i], base); i += 1) | |
3597 | { | |
3598 | result = result * base + digit_to_int (num[i]); | |
3599 | high_part = high_part * base + (unsigned int) (result >> HIGH_BYTE_POSN); | |
3600 | result &= ((ULONGEST) 1 << HIGH_BYTE_POSN) - 1; | |
3601 | if (high_part > 0xff) | |
3602 | { | |
3603 | errno = ERANGE; | |
3604 | result = ~ (ULONGEST) 0; | |
3605 | high_part = 0; | |
3606 | minus = 0; | |
3607 | break; | |
3608 | } | |
3609 | } | |
3610 | ||
3611 | if (trailer != NULL) | |
3612 | *trailer = &num[i]; | |
3613 | ||
3614 | result = result + ((ULONGEST) high_part << HIGH_BYTE_POSN); | |
3615 | if (minus) | |
3616 | return -result; | |
3617 | else | |
3618 | return result; | |
3619 | } | |
e1024ff1 DJ |
3620 | |
3621 | /* Simple, portable version of dirname that does not modify its | |
3622 | argument. */ | |
3623 | ||
3624 | char * | |
3625 | ldirname (const char *filename) | |
3626 | { | |
3627 | const char *base = lbasename (filename); | |
3628 | char *dirname; | |
3629 | ||
3630 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
3631 | --base; | |
3632 | ||
3633 | if (base == filename) | |
3634 | return NULL; | |
3635 | ||
3636 | dirname = xmalloc (base - filename + 2); | |
3637 | memcpy (dirname, filename, base - filename); | |
3638 | ||
3639 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
3640 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
3641 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
3642 | && !IS_DIR_SEPARATOR (filename[0])) | |
3643 | dirname[base++ - filename] = '.'; | |
3644 | ||
3645 | dirname[base - filename] = '\0'; | |
3646 | return dirname; | |
3647 | } | |
d1a41061 PP |
3648 | |
3649 | /* Call libiberty's buildargv, and return the result. | |
3650 | If buildargv fails due to out-of-memory, call nomem. | |
3651 | Therefore, the returned value is guaranteed to be non-NULL, | |
3652 | unless the parameter itself is NULL. */ | |
3653 | ||
3654 | char ** | |
3655 | gdb_buildargv (const char *s) | |
3656 | { | |
3657 | char **argv = buildargv (s); | |
e0627e85 | 3658 | |
d1a41061 | 3659 | if (s != NULL && argv == NULL) |
d26e3629 | 3660 | malloc_failure (0); |
d1a41061 PP |
3661 | return argv; |
3662 | } | |
3c16cced | 3663 | |
dc146f7c VP |
3664 | int |
3665 | compare_positive_ints (const void *ap, const void *bp) | |
3666 | { | |
3667 | /* Because we know we're comparing two ints which are positive, | |
3668 | there's no danger of overflow here. */ | |
3669 | return * (int *) ap - * (int *) bp; | |
3670 | } | |
3671 | ||
f8eba3c6 TT |
3672 | /* String compare function for qsort. */ |
3673 | ||
3674 | int | |
3675 | compare_strings (const void *arg1, const void *arg2) | |
3676 | { | |
3677 | const char **s1 = (const char **) arg1; | |
3678 | const char **s2 = (const char **) arg2; | |
3679 | ||
3680 | return strcmp (*s1, *s2); | |
3681 | } | |
3682 | ||
d18b8b7a | 3683 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3e43a32a MS |
3684 | #define AMBIGUOUS_MESS2 \ |
3685 | ".\nUse \"set gnutarget format-name\" to specify the format." | |
d18b8b7a HZ |
3686 | |
3687 | const char * | |
3688 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) | |
3689 | { | |
3690 | char *ret, *retp; | |
3691 | int ret_len; | |
3692 | char **p; | |
3693 | ||
3694 | /* Check if errmsg just need simple return. */ | |
3695 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
3696 | return bfd_errmsg (error_tag); | |
3697 | ||
3698 | ret_len = strlen (bfd_errmsg (error_tag)) + strlen (AMBIGUOUS_MESS1) | |
3699 | + strlen (AMBIGUOUS_MESS2); | |
3700 | for (p = matching; *p; p++) | |
3701 | ret_len += strlen (*p) + 1; | |
3702 | ret = xmalloc (ret_len + 1); | |
3703 | retp = ret; | |
3704 | make_cleanup (xfree, ret); | |
3705 | ||
3706 | strcpy (retp, bfd_errmsg (error_tag)); | |
3707 | retp += strlen (retp); | |
3708 | ||
3709 | strcpy (retp, AMBIGUOUS_MESS1); | |
3710 | retp += strlen (retp); | |
3711 | ||
3712 | for (p = matching; *p; p++) | |
3713 | { | |
3714 | sprintf (retp, " %s", *p); | |
3715 | retp += strlen (retp); | |
3716 | } | |
3717 | xfree (matching); | |
3718 | ||
3719 | strcpy (retp, AMBIGUOUS_MESS2); | |
3720 | ||
3721 | return ret; | |
3722 | } | |
3723 | ||
74164c56 JK |
3724 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
3725 | ||
3726 | int | |
3727 | parse_pid_to_attach (char *args) | |
3728 | { | |
3729 | unsigned long pid; | |
3730 | char *dummy; | |
3731 | ||
3732 | if (!args) | |
3733 | error_no_arg (_("process-id to attach")); | |
3734 | ||
3735 | dummy = args; | |
3736 | pid = strtoul (args, &dummy, 0); | |
3737 | /* Some targets don't set errno on errors, grrr! */ | |
3738 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
3739 | error (_("Illegal process-id: %s."), args); | |
3740 | ||
3741 | return pid; | |
3742 | } | |
3743 | ||
353d1d73 JK |
3744 | /* Helper for make_bpstat_clear_actions_cleanup. */ |
3745 | ||
3746 | static void | |
3747 | do_bpstat_clear_actions_cleanup (void *unused) | |
3748 | { | |
3749 | bpstat_clear_actions (); | |
3750 | } | |
3751 | ||
3752 | /* Call bpstat_clear_actions for the case an exception is throw. You should | |
3753 | discard_cleanups if no exception is caught. */ | |
3754 | ||
3755 | struct cleanup * | |
3756 | make_bpstat_clear_actions_cleanup (void) | |
3757 | { | |
3758 | return make_cleanup (do_bpstat_clear_actions_cleanup, NULL); | |
3759 | } | |
3760 | ||
df15bd07 JK |
3761 | /* Check for GCC >= 4.x according to the symtab->producer string. Return minor |
3762 | version (x) of 4.x in such case. If it is not GCC or it is GCC older than | |
3763 | 4.x return -1. If it is GCC 5.x or higher return INT_MAX. */ | |
3764 | ||
3765 | int | |
3766 | producer_is_gcc_ge_4 (const char *producer) | |
3767 | { | |
3768 | const char *cs; | |
3769 | int major, minor; | |
3770 | ||
3771 | if (producer == NULL) | |
3772 | { | |
3773 | /* For unknown compilers expect their behavior is not compliant. For GCC | |
3774 | this case can also happen for -gdwarf-4 type units supported since | |
3775 | gcc-4.5. */ | |
3776 | ||
3777 | return -1; | |
3778 | } | |
3779 | ||
3780 | /* Skip any identifier after "GNU " - such as "C++" or "Java". */ | |
3781 | ||
3782 | if (strncmp (producer, "GNU ", strlen ("GNU ")) != 0) | |
3783 | { | |
3784 | /* For non-GCC compilers expect their behavior is not compliant. */ | |
3785 | ||
3786 | return -1; | |
3787 | } | |
3788 | cs = &producer[strlen ("GNU ")]; | |
3789 | while (*cs && !isdigit (*cs)) | |
3790 | cs++; | |
3791 | if (sscanf (cs, "%d.%d", &major, &minor) != 2) | |
3792 | { | |
3793 | /* Not recognized as GCC. */ | |
3794 | ||
3795 | return -1; | |
3796 | } | |
3797 | ||
3798 | if (major < 4) | |
3799 | return -1; | |
3800 | if (major > 4) | |
3801 | return INT_MAX; | |
3802 | return minor; | |
3803 | } | |
3804 | ||
0b6cb71e DE |
3805 | #ifdef HAVE_WAITPID |
3806 | ||
3807 | #ifdef SIGALRM | |
3808 | ||
3809 | /* SIGALRM handler for waitpid_with_timeout. */ | |
3810 | ||
3811 | static void | |
3812 | sigalrm_handler (int signo) | |
3813 | { | |
3814 | /* Nothing to do. */ | |
3815 | } | |
3816 | ||
3817 | #endif | |
3818 | ||
3819 | /* Wrapper to wait for child PID to die with TIMEOUT. | |
3820 | TIMEOUT is the time to stop waiting in seconds. | |
3821 | If TIMEOUT is zero, pass WNOHANG to waitpid. | |
3822 | Returns PID if it was successfully waited for, otherwise -1. | |
3823 | ||
3824 | Timeouts are currently implemented with alarm and SIGALRM. | |
3825 | If the host does not support them, this waits "forever". | |
3826 | It would be odd though for a host to have waitpid and not SIGALRM. */ | |
3827 | ||
3828 | pid_t | |
3829 | wait_to_die_with_timeout (pid_t pid, int *status, int timeout) | |
3830 | { | |
3831 | pid_t waitpid_result; | |
3832 | ||
3833 | gdb_assert (pid > 0); | |
3834 | gdb_assert (timeout >= 0); | |
3835 | ||
3836 | if (timeout > 0) | |
3837 | { | |
3838 | #ifdef SIGALRM | |
3839 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3840 | struct sigaction sa, old_sa; | |
3841 | ||
3842 | sa.sa_handler = sigalrm_handler; | |
3843 | sigemptyset (&sa.sa_mask); | |
3844 | sa.sa_flags = 0; | |
3845 | sigaction (SIGALRM, &sa, &old_sa); | |
3846 | #else | |
3847 | void (*ofunc) (); | |
3848 | ||
3849 | ofunc = (void (*)()) signal (SIGALRM, sigalrm_handler); | |
3850 | #endif | |
3851 | ||
3852 | alarm (timeout); | |
3853 | #endif | |
3854 | ||
3855 | waitpid_result = waitpid (pid, status, 0); | |
3856 | ||
3857 | #ifdef SIGALRM | |
3858 | alarm (0); | |
3859 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3860 | sigaction (SIGALRM, &old_sa, NULL); | |
3861 | #else | |
3862 | signal (SIGALRM, ofunc); | |
3863 | #endif | |
3864 | #endif | |
3865 | } | |
3866 | else | |
3867 | waitpid_result = waitpid (pid, status, WNOHANG); | |
3868 | ||
3869 | if (waitpid_result == pid) | |
3870 | return pid; | |
3871 | else | |
3872 | return -1; | |
3873 | } | |
3874 | ||
3875 | #endif /* HAVE_WAITPID */ | |
3876 | ||
2c0b251b PA |
3877 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
3878 | extern initialize_file_ftype _initialize_utils; | |
3879 | ||
3c16cced PA |
3880 | void |
3881 | _initialize_utils (void) | |
3882 | { | |
3883 | add_internal_problem_command (&internal_error_problem); | |
3884 | add_internal_problem_command (&internal_warning_problem); | |
3885 | } |