Commit | Line | Data |
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c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
1bac305b | 2 | |
32d0add0 | 3 | Copyright (C) 1986-2015 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 | 22 | #include <ctype.h> |
0b6cb71e | 23 | #include "gdb_wait.h" |
4e8f7a8b | 24 | #include "event-top.h" |
95e54da7 | 25 | #include "gdbthread.h" |
202cbf1c | 26 | #include "fnmatch.h" |
cbb099e8 | 27 | #include "gdb_bfd.h" |
7991dee7 JK |
28 | #ifdef HAVE_SYS_RESOURCE_H |
29 | #include <sys/resource.h> | |
30 | #endif /* HAVE_SYS_RESOURCE_H */ | |
4e8f7a8b | 31 | |
6a83354a AC |
32 | #ifdef TUI |
33 | #include "tui/tui.h" /* For tui_get_command_dimension. */ | |
34 | #endif | |
35 | ||
9d271fd8 AC |
36 | #ifdef __GO32__ |
37 | #include <pc.h> | |
38 | #endif | |
39 | ||
042be3a9 | 40 | #include <signal.h> |
0a1c4d10 | 41 | #include "timeval-utils.h" |
c906108c SS |
42 | #include "gdbcmd.h" |
43 | #include "serial.h" | |
44 | #include "bfd.h" | |
45 | #include "target.h" | |
50f182aa | 46 | #include "gdb-demangle.h" |
c906108c SS |
47 | #include "expression.h" |
48 | #include "language.h" | |
234b45d4 | 49 | #include "charset.h" |
c906108c | 50 | #include "annotate.h" |
303c8ebd | 51 | #include "filenames.h" |
7b90c3f9 | 52 | #include "symfile.h" |
ae5a43e0 | 53 | #include "gdb_obstack.h" |
9544c605 | 54 | #include "gdbcore.h" |
698ba934 | 55 | #include "top.h" |
7c953934 | 56 | #include "main.h" |
cb08cc53 | 57 | #include "solist.h" |
c906108c | 58 | |
8731e58e | 59 | #include "inferior.h" /* for signed_pointer_to_address */ |
ac2e2ef7 | 60 | |
3b78cdbb | 61 | #include "gdb_curses.h" |
020cc13c | 62 | |
dbda9972 | 63 | #include "readline/readline.h" |
c906108c | 64 | |
75feb17d DJ |
65 | #include <sys/time.h> |
66 | #include <time.h> | |
67 | ||
8626589c | 68 | #include "gdb_usleep.h" |
390a8aca | 69 | #include "interps.h" |
dc92e161 | 70 | #include "gdb_regex.h" |
8626589c | 71 | |
a3828db0 | 72 | #if !HAVE_DECL_MALLOC |
5ac79d78 | 73 | extern PTR malloc (); /* ARI: PTR */ |
3c37485b | 74 | #endif |
a3828db0 | 75 | #if !HAVE_DECL_REALLOC |
5ac79d78 | 76 | extern PTR realloc (); /* ARI: PTR */ |
0e52036f | 77 | #endif |
a3828db0 | 78 | #if !HAVE_DECL_FREE |
81b8eb80 AC |
79 | extern void free (); |
80 | #endif | |
81b8eb80 | 81 | |
9a4105ab | 82 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
83 | |
84 | /* Prototypes for local functions */ | |
85 | ||
d9fcf2fb | 86 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
a0b31db1 | 87 | va_list, int) ATTRIBUTE_PRINTF (2, 0); |
c906108c | 88 | |
d9fcf2fb | 89 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 90 | |
a14ed312 | 91 | static void prompt_for_continue (void); |
c906108c | 92 | |
eb0d3137 | 93 | static void set_screen_size (void); |
a14ed312 | 94 | static void set_width (void); |
c906108c | 95 | |
260c0b2a DE |
96 | /* Time spent in prompt_for_continue in the currently executing command |
97 | waiting for user to respond. | |
98 | Initialized in make_command_stats_cleanup. | |
99 | Modified in prompt_for_continue and defaulted_query. | |
100 | Used in report_command_stats. */ | |
101 | ||
102 | static struct timeval prompt_for_continue_wait_time; | |
103 | ||
75feb17d DJ |
104 | /* A flag indicating whether to timestamp debugging messages. */ |
105 | ||
106 | static int debug_timestamp = 0; | |
107 | ||
581e13c1 | 108 | /* Nonzero if we have job control. */ |
c906108c SS |
109 | |
110 | int job_control; | |
111 | ||
c906108c SS |
112 | /* Nonzero means quit immediately if Control-C is typed now, rather |
113 | than waiting until QUIT is executed. Be careful in setting this; | |
114 | code which executes with immediate_quit set has to be very careful | |
115 | about being able to deal with being interrupted at any time. It is | |
116 | almost always better to use QUIT; the only exception I can think of | |
117 | is being able to quit out of a system call (using EINTR loses if | |
118 | the SIGINT happens between the previous QUIT and the system call). | |
119 | To immediately quit in the case in which a SIGINT happens between | |
120 | the previous QUIT and setting immediate_quit (desirable anytime we | |
121 | expect to block), call QUIT after setting immediate_quit. */ | |
122 | ||
123 | int immediate_quit; | |
124 | ||
c906108c SS |
125 | /* Nonzero means that strings with character values >0x7F should be printed |
126 | as octal escapes. Zero means just print the value (e.g. it's an | |
127 | international character, and the terminal or window can cope.) */ | |
128 | ||
129 | int sevenbit_strings = 0; | |
920d2a44 AC |
130 | static void |
131 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
132 | struct cmd_list_element *c, const char *value) | |
133 | { | |
3e43a32a MS |
134 | fprintf_filtered (file, _("Printing of 8-bit characters " |
135 | "in strings as \\nnn is %s.\n"), | |
920d2a44 AC |
136 | value); |
137 | } | |
c906108c | 138 | |
c906108c SS |
139 | /* String to be printed before warning messages, if any. */ |
140 | ||
141 | char *warning_pre_print = "\nwarning: "; | |
142 | ||
143 | int pagination_enabled = 1; | |
920d2a44 AC |
144 | static void |
145 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
146 | struct cmd_list_element *c, const char *value) | |
147 | { | |
148 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
149 | } | |
150 | ||
c906108c | 151 | \f |
c27f5738 | 152 | /* Cleanup utilities. |
c5aa993b | 153 | |
c27f5738 DE |
154 | These are not defined in cleanups.c (nor declared in cleanups.h) |
155 | because while they use the "cleanup API" they are not part of the | |
156 | "cleanup API". */ | |
7a292a7a | 157 | |
7a292a7a | 158 | static void |
fba45db2 | 159 | do_freeargv (void *arg) |
7a292a7a | 160 | { |
c5aa993b | 161 | freeargv ((char **) arg); |
7a292a7a SS |
162 | } |
163 | ||
164 | struct cleanup * | |
fba45db2 | 165 | make_cleanup_freeargv (char **arg) |
7a292a7a | 166 | { |
e0088cfd | 167 | return make_cleanup (do_freeargv, arg); |
7a292a7a SS |
168 | } |
169 | ||
5a56e9c5 DE |
170 | static void |
171 | do_dyn_string_delete (void *arg) | |
172 | { | |
173 | dyn_string_delete ((dyn_string_t) arg); | |
174 | } | |
175 | ||
176 | struct cleanup * | |
177 | make_cleanup_dyn_string_delete (dyn_string_t arg) | |
178 | { | |
e0088cfd | 179 | return make_cleanup (do_dyn_string_delete, arg); |
5a56e9c5 DE |
180 | } |
181 | ||
5c65bbb6 AC |
182 | static void |
183 | do_bfd_close_cleanup (void *arg) | |
184 | { | |
cbb099e8 | 185 | gdb_bfd_unref (arg); |
5c65bbb6 AC |
186 | } |
187 | ||
188 | struct cleanup * | |
f9a062ff | 189 | make_cleanup_bfd_unref (bfd *abfd) |
5c65bbb6 AC |
190 | { |
191 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
192 | } | |
193 | ||
7c8a8b04 TT |
194 | /* Helper function which does the work for make_cleanup_fclose. */ |
195 | ||
196 | static void | |
197 | do_fclose_cleanup (void *arg) | |
198 | { | |
c02866a0 | 199 | FILE *file = arg; |
e0627e85 | 200 | |
c02866a0 | 201 | fclose (file); |
7c8a8b04 TT |
202 | } |
203 | ||
204 | /* Return a new cleanup that closes FILE. */ | |
205 | ||
206 | struct cleanup * | |
207 | make_cleanup_fclose (FILE *file) | |
208 | { | |
209 | return make_cleanup (do_fclose_cleanup, file); | |
210 | } | |
211 | ||
16ad9370 TT |
212 | /* Helper function which does the work for make_cleanup_obstack_free. */ |
213 | ||
214 | static void | |
215 | do_obstack_free (void *arg) | |
216 | { | |
217 | struct obstack *ob = arg; | |
e0627e85 | 218 | |
16ad9370 TT |
219 | obstack_free (ob, NULL); |
220 | } | |
221 | ||
222 | /* Return a new cleanup that frees OBSTACK. */ | |
223 | ||
224 | struct cleanup * | |
225 | make_cleanup_obstack_free (struct obstack *obstack) | |
226 | { | |
227 | return make_cleanup (do_obstack_free, obstack); | |
228 | } | |
229 | ||
11cf8741 | 230 | static void |
d9fcf2fb | 231 | do_ui_file_delete (void *arg) |
11cf8741 | 232 | { |
d9fcf2fb | 233 | ui_file_delete (arg); |
11cf8741 JM |
234 | } |
235 | ||
236 | struct cleanup * | |
d9fcf2fb | 237 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 238 | { |
e0088cfd | 239 | return make_cleanup (do_ui_file_delete, arg); |
11cf8741 JM |
240 | } |
241 | ||
8d4d924b JK |
242 | /* Helper function for make_cleanup_ui_out_redirect_pop. */ |
243 | ||
244 | static void | |
245 | do_ui_out_redirect_pop (void *arg) | |
246 | { | |
247 | struct ui_out *uiout = arg; | |
248 | ||
249 | if (ui_out_redirect (uiout, NULL) < 0) | |
250 | warning (_("Cannot restore redirection of the current output protocol")); | |
251 | } | |
252 | ||
253 | /* Return a new cleanup that pops the last redirection by ui_out_redirect | |
254 | with NULL parameter. */ | |
255 | ||
256 | struct cleanup * | |
257 | make_cleanup_ui_out_redirect_pop (struct ui_out *uiout) | |
258 | { | |
e0088cfd | 259 | return make_cleanup (do_ui_out_redirect_pop, uiout); |
8d4d924b JK |
260 | } |
261 | ||
7b90c3f9 JB |
262 | static void |
263 | do_free_section_addr_info (void *arg) | |
264 | { | |
265 | free_section_addr_info (arg); | |
266 | } | |
267 | ||
268 | struct cleanup * | |
269 | make_cleanup_free_section_addr_info (struct section_addr_info *addrs) | |
270 | { | |
e0088cfd | 271 | return make_cleanup (do_free_section_addr_info, addrs); |
7b90c3f9 JB |
272 | } |
273 | ||
0b080f59 VP |
274 | struct restore_integer_closure |
275 | { | |
276 | int *variable; | |
277 | int value; | |
278 | }; | |
279 | ||
280 | static void | |
281 | restore_integer (void *p) | |
282 | { | |
283 | struct restore_integer_closure *closure = p; | |
e0627e85 | 284 | |
0b080f59 VP |
285 | *(closure->variable) = closure->value; |
286 | } | |
7b90c3f9 | 287 | |
3e43a32a MS |
288 | /* Remember the current value of *VARIABLE and make it restored when |
289 | the cleanup is run. */ | |
5da1313b | 290 | |
c906108c | 291 | struct cleanup * |
0b080f59 VP |
292 | make_cleanup_restore_integer (int *variable) |
293 | { | |
294 | struct restore_integer_closure *c = | |
295 | xmalloc (sizeof (struct restore_integer_closure)); | |
e0627e85 | 296 | |
0b080f59 VP |
297 | c->variable = variable; |
298 | c->value = *variable; | |
299 | ||
e0088cfd | 300 | return make_cleanup_dtor (restore_integer, (void *) c, xfree); |
0b080f59 VP |
301 | } |
302 | ||
3e43a32a MS |
303 | /* Remember the current value of *VARIABLE and make it restored when |
304 | the cleanup is run. */ | |
5da1313b JK |
305 | |
306 | struct cleanup * | |
307 | make_cleanup_restore_uinteger (unsigned int *variable) | |
308 | { | |
309 | return make_cleanup_restore_integer ((int *) variable); | |
310 | } | |
311 | ||
c0edd9ed JK |
312 | /* Helper for make_cleanup_unpush_target. */ |
313 | ||
314 | static void | |
315 | do_unpush_target (void *arg) | |
316 | { | |
317 | struct target_ops *ops = arg; | |
318 | ||
319 | unpush_target (ops); | |
320 | } | |
321 | ||
322 | /* Return a new cleanup that unpushes OPS. */ | |
323 | ||
324 | struct cleanup * | |
325 | make_cleanup_unpush_target (struct target_ops *ops) | |
326 | { | |
e0088cfd | 327 | return make_cleanup (do_unpush_target, ops); |
c0edd9ed JK |
328 | } |
329 | ||
8e3b41a9 JK |
330 | /* Helper for make_cleanup_htab_delete compile time checking the types. */ |
331 | ||
332 | static void | |
333 | do_htab_delete_cleanup (void *htab_voidp) | |
334 | { | |
335 | htab_t htab = htab_voidp; | |
336 | ||
337 | htab_delete (htab); | |
338 | } | |
339 | ||
340 | /* Return a new cleanup that deletes HTAB. */ | |
341 | ||
342 | struct cleanup * | |
343 | make_cleanup_htab_delete (htab_t htab) | |
344 | { | |
345 | return make_cleanup (do_htab_delete_cleanup, htab); | |
346 | } | |
347 | ||
5da1313b JK |
348 | struct restore_ui_file_closure |
349 | { | |
350 | struct ui_file **variable; | |
351 | struct ui_file *value; | |
352 | }; | |
353 | ||
354 | static void | |
355 | do_restore_ui_file (void *p) | |
356 | { | |
357 | struct restore_ui_file_closure *closure = p; | |
358 | ||
359 | *(closure->variable) = closure->value; | |
360 | } | |
361 | ||
362 | /* Remember the current value of *VARIABLE and make it restored when | |
363 | the cleanup is run. */ | |
364 | ||
365 | struct cleanup * | |
366 | make_cleanup_restore_ui_file (struct ui_file **variable) | |
367 | { | |
368 | struct restore_ui_file_closure *c = XNEW (struct restore_ui_file_closure); | |
369 | ||
370 | c->variable = variable; | |
371 | c->value = *variable; | |
372 | ||
373 | return make_cleanup_dtor (do_restore_ui_file, (void *) c, xfree); | |
374 | } | |
375 | ||
028d0ed5 TJB |
376 | /* Helper for make_cleanup_value_free_to_mark. */ |
377 | ||
378 | static void | |
379 | do_value_free_to_mark (void *value) | |
380 | { | |
381 | value_free_to_mark ((struct value *) value); | |
382 | } | |
383 | ||
384 | /* Free all values allocated since MARK was obtained by value_mark | |
385 | (except for those released) when the cleanup is run. */ | |
386 | ||
387 | struct cleanup * | |
388 | make_cleanup_value_free_to_mark (struct value *mark) | |
389 | { | |
e0088cfd | 390 | return make_cleanup (do_value_free_to_mark, mark); |
028d0ed5 TJB |
391 | } |
392 | ||
72fc29ff TT |
393 | /* Helper for make_cleanup_value_free. */ |
394 | ||
395 | static void | |
396 | do_value_free (void *value) | |
397 | { | |
398 | value_free (value); | |
399 | } | |
400 | ||
401 | /* Free VALUE. */ | |
402 | ||
403 | struct cleanup * | |
404 | make_cleanup_value_free (struct value *value) | |
405 | { | |
e0088cfd | 406 | return make_cleanup (do_value_free, value); |
72fc29ff TT |
407 | } |
408 | ||
cb08cc53 JK |
409 | /* Helper for make_cleanup_free_so. */ |
410 | ||
411 | static void | |
412 | do_free_so (void *arg) | |
413 | { | |
414 | struct so_list *so = arg; | |
415 | ||
416 | free_so (so); | |
417 | } | |
418 | ||
419 | /* Make cleanup handler calling free_so for SO. */ | |
420 | ||
421 | struct cleanup * | |
422 | make_cleanup_free_so (struct so_list *so) | |
423 | { | |
e0088cfd | 424 | return make_cleanup (do_free_so, so); |
cb08cc53 JK |
425 | } |
426 | ||
5b12a61c JK |
427 | /* Helper for make_cleanup_restore_current_language. */ |
428 | ||
429 | static void | |
430 | do_restore_current_language (void *p) | |
431 | { | |
432 | enum language saved_lang = (uintptr_t) p; | |
433 | ||
434 | set_language (saved_lang); | |
435 | } | |
436 | ||
437 | /* Remember the current value of CURRENT_LANGUAGE and make it restored when | |
438 | the cleanup is run. */ | |
439 | ||
440 | struct cleanup * | |
441 | make_cleanup_restore_current_language (void) | |
442 | { | |
443 | enum language saved_lang = current_language->la_language; | |
444 | ||
445 | return make_cleanup (do_restore_current_language, | |
446 | (void *) (uintptr_t) saved_lang); | |
447 | } | |
448 | ||
410a0ff2 SDJ |
449 | /* Helper function for make_cleanup_clear_parser_state. */ |
450 | ||
451 | static void | |
452 | do_clear_parser_state (void *ptr) | |
453 | { | |
454 | struct parser_state **p = (struct parser_state **) ptr; | |
455 | ||
456 | *p = NULL; | |
457 | } | |
458 | ||
459 | /* Clean (i.e., set to NULL) the parser state variable P. */ | |
460 | ||
461 | struct cleanup * | |
462 | make_cleanup_clear_parser_state (struct parser_state **p) | |
463 | { | |
464 | return make_cleanup (do_clear_parser_state, (void *) p); | |
465 | } | |
466 | ||
c906108c SS |
467 | /* This function is useful for cleanups. |
468 | Do | |
469 | ||
c5aa993b JM |
470 | foo = xmalloc (...); |
471 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
472 | |
473 | to arrange to free the object thus allocated. */ | |
474 | ||
475 | void | |
2f9429ae | 476 | free_current_contents (void *ptr) |
c906108c | 477 | { |
2f9429ae | 478 | void **location = ptr; |
e0627e85 | 479 | |
e2f9c474 | 480 | if (location == NULL) |
8e65ff28 | 481 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 482 | _("free_current_contents: NULL pointer")); |
2f9429ae | 483 | if (*location != NULL) |
e2f9c474 | 484 | { |
b8c9b27d | 485 | xfree (*location); |
e2f9c474 AC |
486 | *location = NULL; |
487 | } | |
c906108c | 488 | } |
c906108c | 489 | \f |
c5aa993b | 490 | |
8731e58e | 491 | |
f5a96129 AC |
492 | /* Print a warning message. The first argument STRING is the warning |
493 | message, used as an fprintf format string, the second is the | |
494 | va_list of arguments for that string. A warning is unfiltered (not | |
495 | paginated) so that the user does not need to page through each | |
496 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
497 | |
498 | void | |
f5a96129 | 499 | vwarning (const char *string, va_list args) |
c906108c | 500 | { |
9a4105ab AC |
501 | if (deprecated_warning_hook) |
502 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
503 | else |
504 | { | |
0d2f5c07 GB |
505 | if (target_supports_terminal_ours ()) |
506 | target_terminal_ours (); | |
507 | if (filtered_printing_initialized ()) | |
508 | wrap_here (""); /* Force out any buffered output. */ | |
f5a96129 AC |
509 | gdb_flush (gdb_stdout); |
510 | if (warning_pre_print) | |
306d9ac5 | 511 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
512 | vfprintf_unfiltered (gdb_stderr, string, args); |
513 | fprintf_unfiltered (gdb_stderr, "\n"); | |
f5a96129 | 514 | } |
c906108c SS |
515 | } |
516 | ||
c906108c SS |
517 | /* Print an error message and return to command level. |
518 | The first argument STRING is the error message, used as a fprintf string, | |
519 | and the remaining args are passed as arguments to it. */ | |
520 | ||
c25c4a8b | 521 | void |
4ce44c66 JM |
522 | verror (const char *string, va_list args) |
523 | { | |
6b1b7650 | 524 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
525 | } |
526 | ||
c25c4a8b | 527 | void |
d75e3c94 | 528 | error_stream (struct ui_file *stream) |
2acceee2 | 529 | { |
759ef836 | 530 | char *message = ui_file_xstrdup (stream, NULL); |
e0627e85 | 531 | |
6b1b7650 | 532 | make_cleanup (xfree, message); |
8a3fe4f8 | 533 | error (("%s"), message); |
2acceee2 | 534 | } |
c906108c | 535 | |
2437fd32 GB |
536 | /* Emit a message and abort. */ |
537 | ||
538 | static void ATTRIBUTE_NORETURN | |
539 | abort_with_message (const char *msg) | |
540 | { | |
541 | if (gdb_stderr == NULL) | |
542 | fputs (msg, stderr); | |
543 | else | |
544 | fputs_unfiltered (msg, gdb_stderr); | |
545 | ||
546 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
547 | } | |
548 | ||
7991dee7 JK |
549 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
550 | ||
eae7090b | 551 | void |
7991dee7 JK |
552 | dump_core (void) |
553 | { | |
554 | #ifdef HAVE_SETRLIMIT | |
555 | struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY }; | |
556 | ||
557 | setrlimit (RLIMIT_CORE, &rlim); | |
558 | #endif /* HAVE_SETRLIMIT */ | |
559 | ||
560 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
561 | } | |
562 | ||
3e43a32a | 563 | /* Check whether GDB will be able to dump core using the dump_core |
eae7090b GB |
564 | function. Returns zero if GDB cannot or should not dump core. |
565 | If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected. | |
566 | If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected. */ | |
7991dee7 | 567 | |
eae7090b GB |
568 | int |
569 | can_dump_core (enum resource_limit_kind limit_kind) | |
7991dee7 JK |
570 | { |
571 | #ifdef HAVE_GETRLIMIT | |
572 | struct rlimit rlim; | |
573 | ||
574 | /* Be quiet and assume we can dump if an error is returned. */ | |
575 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
576 | return 1; | |
577 | ||
eae7090b | 578 | switch (limit_kind) |
7991dee7 | 579 | { |
eae7090b GB |
580 | case LIMIT_CUR: |
581 | if (rlim.rlim_cur == 0) | |
582 | return 0; | |
583 | ||
584 | case LIMIT_MAX: | |
585 | if (rlim.rlim_max == 0) | |
586 | return 0; | |
7991dee7 JK |
587 | } |
588 | #endif /* HAVE_GETRLIMIT */ | |
589 | ||
590 | return 1; | |
591 | } | |
592 | ||
eae7090b GB |
593 | /* Print a warning that we cannot dump core. */ |
594 | ||
595 | void | |
596 | warn_cant_dump_core (const char *reason) | |
597 | { | |
598 | fprintf_unfiltered (gdb_stderr, | |
599 | _("%s\nUnable to dump core, use `ulimit -c" | |
600 | " unlimited' before executing GDB next time.\n"), | |
601 | reason); | |
602 | } | |
603 | ||
604 | /* Check whether GDB will be able to dump core using the dump_core | |
605 | function, and print a warning if we cannot. */ | |
606 | ||
607 | static int | |
608 | can_dump_core_warn (enum resource_limit_kind limit_kind, | |
609 | const char *reason) | |
610 | { | |
611 | int core_dump_allowed = can_dump_core (limit_kind); | |
612 | ||
613 | if (!core_dump_allowed) | |
614 | warn_cant_dump_core (reason); | |
615 | ||
616 | return core_dump_allowed; | |
617 | } | |
618 | ||
3c16cced PA |
619 | /* Allow the user to configure the debugger behavior with respect to |
620 | what to do when an internal problem is detected. */ | |
621 | ||
622 | const char internal_problem_ask[] = "ask"; | |
623 | const char internal_problem_yes[] = "yes"; | |
624 | const char internal_problem_no[] = "no"; | |
40478521 | 625 | static const char *const internal_problem_modes[] = |
3c16cced PA |
626 | { |
627 | internal_problem_ask, | |
628 | internal_problem_yes, | |
629 | internal_problem_no, | |
630 | NULL | |
631 | }; | |
3c16cced | 632 | |
581e13c1 | 633 | /* Print a message reporting an internal error/warning. Ask the user |
dec43320 AC |
634 | if they want to continue, dump core, or just exit. Return |
635 | something to indicate a quit. */ | |
c906108c | 636 | |
dec43320 | 637 | struct internal_problem |
c906108c | 638 | { |
dec43320 | 639 | const char *name; |
57fcfb1b | 640 | int user_settable_should_quit; |
3c16cced | 641 | const char *should_quit; |
57fcfb1b | 642 | int user_settable_should_dump_core; |
3c16cced | 643 | const char *should_dump_core; |
dec43320 AC |
644 | }; |
645 | ||
646 | /* Report a problem, internal to GDB, to the user. Once the problem | |
647 | has been reported, and assuming GDB didn't quit, the caller can | |
648 | either allow execution to resume or throw an error. */ | |
649 | ||
a0b31db1 | 650 | static void ATTRIBUTE_PRINTF (4, 0) |
dec43320 | 651 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 652 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 653 | { |
dec43320 | 654 | static int dejavu; |
375fc983 | 655 | int quit_p; |
7be570e7 | 656 | int dump_core_p; |
714b1282 | 657 | char *reason; |
48be7c1b | 658 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); |
c906108c | 659 | |
dec43320 | 660 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
661 | { |
662 | static char msg[] = "Recursive internal problem.\n"; | |
5d502164 | 663 | |
714b1282 AC |
664 | switch (dejavu) |
665 | { | |
666 | case 0: | |
667 | dejavu = 1; | |
668 | break; | |
669 | case 1: | |
670 | dejavu = 2; | |
2437fd32 | 671 | abort_with_message (msg); |
714b1282 AC |
672 | default: |
673 | dejavu = 3; | |
bf1d7d9c JB |
674 | /* Newer GLIBC versions put the warn_unused_result attribute |
675 | on write, but this is one of those rare cases where | |
676 | ignoring the return value is correct. Casting to (void) | |
677 | does not fix this problem. This is the solution suggested | |
678 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
679 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
7991dee7 | 680 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
681 | exit (1); |
682 | } | |
683 | } | |
c906108c | 684 | |
714b1282 AC |
685 | /* Create a string containing the full error/warning message. Need |
686 | to call query with this full string, as otherwize the reason | |
687 | (error/warning) and question become separated. Format using a | |
688 | style similar to a compiler error message. Include extra detail | |
689 | so that the user knows that they are living on the edge. */ | |
690 | { | |
691 | char *msg; | |
5d502164 | 692 | |
e623b504 | 693 | msg = xstrvprintf (fmt, ap); |
3e43a32a MS |
694 | reason = xstrprintf ("%s:%d: %s: %s\n" |
695 | "A problem internal to GDB has been detected,\n" | |
696 | "further debugging may prove unreliable.", | |
697 | file, line, problem->name, msg); | |
714b1282 AC |
698 | xfree (msg); |
699 | make_cleanup (xfree, reason); | |
700 | } | |
7be570e7 | 701 | |
2437fd32 GB |
702 | /* Fall back to abort_with_message if gdb_stderr is not set up. */ |
703 | if (gdb_stderr == NULL) | |
704 | { | |
705 | fputs (reason, stderr); | |
706 | abort_with_message ("\n"); | |
707 | } | |
708 | ||
709 | /* Try to get the message out and at the start of a new line. */ | |
710 | if (target_supports_terminal_ours ()) | |
711 | target_terminal_ours (); | |
712 | if (filtered_printing_initialized ()) | |
713 | begin_line (); | |
714 | ||
196a707b | 715 | /* Emit the message unless query will emit it below. */ |
2437fd32 GB |
716 | if (problem->should_quit != internal_problem_ask |
717 | || !confirm | |
718 | || !filtered_printing_initialized ()) | |
196a707b GB |
719 | fprintf_unfiltered (gdb_stderr, "%s\n", reason); |
720 | ||
3c16cced | 721 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 722 | { |
dec43320 | 723 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
724 | this lessens the likelihood of GDB going into an infinite |
725 | loop. */ | |
2437fd32 | 726 | if (!confirm || !filtered_printing_initialized ()) |
196a707b | 727 | quit_p = 1; |
26bb68be PP |
728 | else |
729 | quit_p = query (_("%s\nQuit this debugging session? "), reason); | |
dec43320 | 730 | } |
3c16cced PA |
731 | else if (problem->should_quit == internal_problem_yes) |
732 | quit_p = 1; | |
733 | else if (problem->should_quit == internal_problem_no) | |
734 | quit_p = 0; | |
735 | else | |
736 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 737 | |
add6c04d GB |
738 | fputs_unfiltered (_("\nThis is a bug, please report it."), gdb_stderr); |
739 | if (REPORT_BUGS_TO[0]) | |
740 | fprintf_unfiltered (gdb_stderr, _(" For instructions, see:\n%s."), | |
741 | REPORT_BUGS_TO); | |
742 | fputs_unfiltered ("\n\n", gdb_stderr); | |
743 | ||
3c16cced | 744 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 745 | { |
eae7090b | 746 | if (!can_dump_core_warn (LIMIT_MAX, reason)) |
7991dee7 | 747 | dump_core_p = 0; |
2437fd32 GB |
748 | else if (!filtered_printing_initialized ()) |
749 | dump_core_p = 1; | |
7991dee7 JK |
750 | else |
751 | { | |
752 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
753 | `dropping' so that it is easier to see that something went | |
754 | wrong in GDB. */ | |
755 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason); | |
756 | } | |
dec43320 | 757 | } |
3c16cced | 758 | else if (problem->should_dump_core == internal_problem_yes) |
eae7090b | 759 | dump_core_p = can_dump_core_warn (LIMIT_MAX, reason); |
3c16cced PA |
760 | else if (problem->should_dump_core == internal_problem_no) |
761 | dump_core_p = 0; | |
762 | else | |
763 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 764 | |
375fc983 | 765 | if (quit_p) |
7be570e7 JM |
766 | { |
767 | if (dump_core_p) | |
7991dee7 | 768 | dump_core (); |
375fc983 AC |
769 | else |
770 | exit (1); | |
7be570e7 JM |
771 | } |
772 | else | |
773 | { | |
774 | if (dump_core_p) | |
375fc983 | 775 | { |
9b265ec2 | 776 | #ifdef HAVE_WORKING_FORK |
375fc983 | 777 | if (fork () == 0) |
7991dee7 | 778 | dump_core (); |
9b265ec2 | 779 | #endif |
375fc983 | 780 | } |
7be570e7 | 781 | } |
96baa820 JM |
782 | |
783 | dejavu = 0; | |
48be7c1b | 784 | do_cleanups (cleanup); |
dec43320 AC |
785 | } |
786 | ||
787 | static struct internal_problem internal_error_problem = { | |
57fcfb1b | 788 | "internal-error", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
789 | }; |
790 | ||
c25c4a8b | 791 | void |
8731e58e | 792 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
793 | { |
794 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
2c51604d | 795 | throw_quit (_("Command aborted.")); |
c906108c SS |
796 | } |
797 | ||
dec43320 | 798 | static struct internal_problem internal_warning_problem = { |
57fcfb1b | 799 | "internal-warning", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
800 | }; |
801 | ||
802 | void | |
8731e58e | 803 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
804 | { |
805 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
806 | } | |
807 | ||
57fcfb1b GB |
808 | static struct internal_problem demangler_warning_problem = { |
809 | "demangler-warning", 1, internal_problem_ask, 0, internal_problem_no | |
810 | }; | |
811 | ||
812 | void | |
813 | demangler_vwarning (const char *file, int line, const char *fmt, va_list ap) | |
814 | { | |
815 | internal_vproblem (&demangler_warning_problem, file, line, fmt, ap); | |
816 | } | |
817 | ||
818 | void | |
819 | demangler_warning (const char *file, int line, const char *string, ...) | |
820 | { | |
821 | va_list ap; | |
822 | ||
823 | va_start (ap, string); | |
824 | demangler_vwarning (file, line, string, ap); | |
825 | va_end (ap); | |
826 | } | |
827 | ||
3c16cced PA |
828 | /* Dummy functions to keep add_prefix_cmd happy. */ |
829 | ||
830 | static void | |
831 | set_internal_problem_cmd (char *args, int from_tty) | |
832 | { | |
833 | } | |
834 | ||
835 | static void | |
836 | show_internal_problem_cmd (char *args, int from_tty) | |
837 | { | |
838 | } | |
839 | ||
840 | /* When GDB reports an internal problem (error or warning) it gives | |
841 | the user the opportunity to quit GDB and/or create a core file of | |
842 | the current debug session. This function registers a few commands | |
843 | that make it possible to specify that GDB should always or never | |
844 | quit or create a core file, without asking. The commands look | |
845 | like: | |
846 | ||
847 | maint set PROBLEM-NAME quit ask|yes|no | |
848 | maint show PROBLEM-NAME quit | |
849 | maint set PROBLEM-NAME corefile ask|yes|no | |
850 | maint show PROBLEM-NAME corefile | |
851 | ||
852 | Where PROBLEM-NAME is currently "internal-error" or | |
853 | "internal-warning". */ | |
854 | ||
855 | static void | |
856 | add_internal_problem_command (struct internal_problem *problem) | |
857 | { | |
858 | struct cmd_list_element **set_cmd_list; | |
859 | struct cmd_list_element **show_cmd_list; | |
860 | char *set_doc; | |
861 | char *show_doc; | |
862 | ||
863 | set_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
864 | show_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
865 | *set_cmd_list = NULL; | |
866 | *show_cmd_list = NULL; | |
867 | ||
868 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
869 | problem->name); | |
870 | ||
871 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
872 | problem->name); | |
873 | ||
874 | add_prefix_cmd ((char*) problem->name, | |
875 | class_maintenance, set_internal_problem_cmd, set_doc, | |
876 | set_cmd_list, | |
c4f7c687 MK |
877 | concat ("maintenance set ", problem->name, " ", |
878 | (char *) NULL), | |
3c16cced PA |
879 | 0/*allow-unknown*/, &maintenance_set_cmdlist); |
880 | ||
881 | add_prefix_cmd ((char*) problem->name, | |
882 | class_maintenance, show_internal_problem_cmd, show_doc, | |
883 | show_cmd_list, | |
c4f7c687 MK |
884 | concat ("maintenance show ", problem->name, " ", |
885 | (char *) NULL), | |
3c16cced PA |
886 | 0/*allow-unknown*/, &maintenance_show_cmdlist); |
887 | ||
57fcfb1b GB |
888 | if (problem->user_settable_should_quit) |
889 | { | |
890 | set_doc = xstrprintf (_("Set whether GDB should quit " | |
891 | "when an %s is detected"), | |
892 | problem->name); | |
893 | show_doc = xstrprintf (_("Show whether GDB will quit " | |
894 | "when an %s is detected"), | |
895 | problem->name); | |
896 | add_setshow_enum_cmd ("quit", class_maintenance, | |
897 | internal_problem_modes, | |
898 | &problem->should_quit, | |
899 | set_doc, | |
900 | show_doc, | |
901 | NULL, /* help_doc */ | |
902 | NULL, /* setfunc */ | |
903 | NULL, /* showfunc */ | |
904 | set_cmd_list, | |
905 | show_cmd_list); | |
906 | ||
907 | xfree (set_doc); | |
908 | xfree (show_doc); | |
909 | } | |
1eefb858 | 910 | |
57fcfb1b GB |
911 | if (problem->user_settable_should_dump_core) |
912 | { | |
913 | set_doc = xstrprintf (_("Set whether GDB should create a core " | |
914 | "file of GDB when %s is detected"), | |
915 | problem->name); | |
916 | show_doc = xstrprintf (_("Show whether GDB will create a core " | |
917 | "file of GDB when %s is detected"), | |
918 | problem->name); | |
919 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
920 | internal_problem_modes, | |
921 | &problem->should_dump_core, | |
922 | set_doc, | |
923 | show_doc, | |
924 | NULL, /* help_doc */ | |
925 | NULL, /* setfunc */ | |
926 | NULL, /* showfunc */ | |
927 | set_cmd_list, | |
928 | show_cmd_list); | |
929 | ||
930 | xfree (set_doc); | |
931 | xfree (show_doc); | |
932 | } | |
3c16cced PA |
933 | } |
934 | ||
0cf4063e JB |
935 | /* Return a newly allocated string, containing the PREFIX followed |
936 | by the system error message for errno (separated by a colon). | |
937 | ||
938 | The result must be deallocated after use. */ | |
939 | ||
940 | static char * | |
941 | perror_string (const char *prefix) | |
942 | { | |
943 | char *err; | |
944 | char *combined; | |
945 | ||
946 | err = safe_strerror (errno); | |
947 | combined = (char *) xmalloc (strlen (err) + strlen (prefix) + 3); | |
948 | strcpy (combined, prefix); | |
949 | strcat (combined, ": "); | |
950 | strcat (combined, err); | |
951 | ||
952 | return combined; | |
953 | } | |
954 | ||
c906108c | 955 | /* Print the system error message for errno, and also mention STRING |
598d3636 JK |
956 | as the file name for which the error was encountered. Use ERRCODE |
957 | for the thrown exception. Then return to command level. */ | |
c906108c | 958 | |
c25c4a8b | 959 | void |
598d3636 | 960 | throw_perror_with_name (enum errors errcode, const char *string) |
c906108c | 961 | { |
c906108c SS |
962 | char *combined; |
963 | ||
0cf4063e JB |
964 | combined = perror_string (string); |
965 | make_cleanup (xfree, combined); | |
c906108c SS |
966 | |
967 | /* I understand setting these is a matter of taste. Still, some people | |
968 | may clear errno but not know about bfd_error. Doing this here is not | |
581e13c1 | 969 | unreasonable. */ |
c906108c SS |
970 | bfd_set_error (bfd_error_no_error); |
971 | errno = 0; | |
972 | ||
598d3636 JK |
973 | throw_error (errcode, _("%s."), combined); |
974 | } | |
975 | ||
976 | /* See throw_perror_with_name, ERRCODE defaults here to GENERIC_ERROR. */ | |
977 | ||
978 | void | |
979 | perror_with_name (const char *string) | |
980 | { | |
981 | throw_perror_with_name (GENERIC_ERROR, string); | |
c906108c SS |
982 | } |
983 | ||
7c647d61 JB |
984 | /* Same as perror_with_name except that it prints a warning instead |
985 | of throwing an error. */ | |
986 | ||
987 | void | |
988 | perror_warning_with_name (const char *string) | |
989 | { | |
990 | char *combined; | |
991 | ||
992 | combined = perror_string (string); | |
993 | warning (_("%s"), combined); | |
994 | xfree (combined); | |
995 | } | |
996 | ||
c906108c SS |
997 | /* Print the system error message for ERRCODE, and also mention STRING |
998 | as the file name for which the error was encountered. */ | |
999 | ||
1000 | void | |
6972bc8b | 1001 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
1002 | { |
1003 | char *err; | |
1004 | char *combined; | |
1005 | ||
1006 | err = safe_strerror (errcode); | |
1007 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1008 | strcpy (combined, string); | |
1009 | strcat (combined, ": "); | |
1010 | strcat (combined, err); | |
1011 | ||
1012 | /* We want anything which was printed on stdout to come out first, before | |
1013 | this message. */ | |
1014 | gdb_flush (gdb_stdout); | |
1015 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
1016 | } | |
1017 | ||
1018 | /* Control C eventually causes this to be called, at a convenient time. */ | |
1019 | ||
1020 | void | |
fba45db2 | 1021 | quit (void) |
c906108c | 1022 | { |
06c868a8 JK |
1023 | if (sync_quit_force_run) |
1024 | { | |
1025 | sync_quit_force_run = 0; | |
1026 | quit_force (NULL, stdin == instream); | |
1027 | } | |
1028 | ||
7be570e7 JM |
1029 | #ifdef __MSDOS__ |
1030 | /* No steenking SIGINT will ever be coming our way when the | |
1031 | program is resumed. Don't lie. */ | |
2c51604d | 1032 | throw_quit ("Quit"); |
7be570e7 | 1033 | #else |
c906108c | 1034 | if (job_control |
8731e58e AC |
1035 | /* If there is no terminal switching for this target, then we can't |
1036 | possibly get screwed by the lack of job control. */ | |
b0ed115f | 1037 | || !target_supports_terminal_ours ()) |
2c51604d | 1038 | throw_quit ("Quit"); |
c906108c | 1039 | else |
2c51604d | 1040 | throw_quit ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 1041 | #endif |
c906108c SS |
1042 | } |
1043 | ||
c906108c | 1044 | \f |
c906108c | 1045 | /* Called when a memory allocation fails, with the number of bytes of |
581e13c1 | 1046 | memory requested in SIZE. */ |
c906108c | 1047 | |
c25c4a8b | 1048 | void |
d26e3629 | 1049 | malloc_failure (long size) |
c906108c SS |
1050 | { |
1051 | if (size > 0) | |
1052 | { | |
8e65ff28 | 1053 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 1054 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 1055 | size); |
c906108c SS |
1056 | } |
1057 | else | |
1058 | { | |
e2e0b3e5 | 1059 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
1060 | } |
1061 | } | |
1062 | ||
c906108c SS |
1063 | /* My replacement for the read system call. |
1064 | Used like `read' but keeps going if `read' returns too soon. */ | |
1065 | ||
1066 | int | |
fba45db2 | 1067 | myread (int desc, char *addr, int len) |
c906108c | 1068 | { |
52f0bd74 | 1069 | int val; |
c906108c SS |
1070 | int orglen = len; |
1071 | ||
1072 | while (len > 0) | |
1073 | { | |
1074 | val = read (desc, addr, len); | |
1075 | if (val < 0) | |
1076 | return val; | |
1077 | if (val == 0) | |
1078 | return orglen - len; | |
1079 | len -= val; | |
1080 | addr += val; | |
1081 | } | |
1082 | return orglen; | |
1083 | } | |
d26e3629 | 1084 | |
c906108c | 1085 | void |
aa1ee363 | 1086 | print_spaces (int n, struct ui_file *file) |
c906108c | 1087 | { |
392a587b | 1088 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1089 | } |
1090 | ||
1091 | /* Print a host address. */ | |
1092 | ||
1093 | void | |
ac16bf07 | 1094 | gdb_print_host_address (const void *addr, struct ui_file *stream) |
c906108c | 1095 | { |
ea8992ce | 1096 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 1097 | } |
7c50a931 DE |
1098 | |
1099 | /* See utils.h. */ | |
1100 | ||
1101 | char * | |
1102 | make_hex_string (const gdb_byte *data, size_t length) | |
1103 | { | |
1104 | char *result = xmalloc (length * 2 + 1); | |
1105 | char *p; | |
1106 | size_t i; | |
1107 | ||
1108 | p = result; | |
1109 | for (i = 0; i < length; ++i) | |
dc4d6886 | 1110 | p += xsnprintf (p, 3, "%02x", data[i]); |
7c50a931 DE |
1111 | *p = '\0'; |
1112 | return result; | |
1113 | } | |
1114 | ||
c906108c | 1115 | \f |
c5aa993b | 1116 | |
dc92e161 TT |
1117 | /* A cleanup function that calls regfree. */ |
1118 | ||
1119 | static void | |
1120 | do_regfree_cleanup (void *r) | |
1121 | { | |
1122 | regfree (r); | |
1123 | } | |
1124 | ||
1125 | /* Create a new cleanup that frees the compiled regular expression R. */ | |
1126 | ||
1127 | struct cleanup * | |
1128 | make_regfree_cleanup (regex_t *r) | |
1129 | { | |
1130 | return make_cleanup (do_regfree_cleanup, r); | |
1131 | } | |
1132 | ||
1133 | /* Return an xmalloc'd error message resulting from a regular | |
1134 | expression compilation failure. */ | |
1135 | ||
1136 | char * | |
1137 | get_regcomp_error (int code, regex_t *rx) | |
1138 | { | |
1139 | size_t length = regerror (code, rx, NULL, 0); | |
1140 | char *result = xmalloc (length); | |
1141 | ||
1142 | regerror (code, rx, result, length); | |
1143 | return result; | |
1144 | } | |
1145 | ||
cc16e6c9 | 1146 | /* Compile a regexp and throw an exception on error. This returns a |
db26349c TT |
1147 | cleanup to free the resulting pattern on success. RX must not be |
1148 | NULL. */ | |
cc16e6c9 TT |
1149 | |
1150 | struct cleanup * | |
1151 | compile_rx_or_error (regex_t *pattern, const char *rx, const char *message) | |
1152 | { | |
1153 | int code; | |
1154 | ||
db26349c | 1155 | gdb_assert (rx != NULL); |
cc16e6c9 TT |
1156 | |
1157 | code = regcomp (pattern, rx, REG_NOSUB); | |
1158 | if (code != 0) | |
1159 | { | |
1160 | char *err = get_regcomp_error (code, pattern); | |
1161 | ||
1162 | make_cleanup (xfree, err); | |
1163 | error (("%s: %s"), message, err); | |
1164 | } | |
1165 | ||
1166 | return make_regfree_cleanup (pattern); | |
1167 | } | |
1168 | ||
dc92e161 TT |
1169 | \f |
1170 | ||
981c7f5a | 1171 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 1172 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
1173 | answer is yes, or default the answer to the specified default |
1174 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
1175 | default answer, or '\0' for no default. | |
cbdeadca JJ |
1176 | CTLSTR is the control string and should end in "? ". It should |
1177 | not say how to answer, because we do that. | |
1178 | ARGS are the arguments passed along with the CTLSTR argument to | |
1179 | printf. */ | |
1180 | ||
a0b31db1 | 1181 | static int ATTRIBUTE_PRINTF (1, 0) |
cbdeadca JJ |
1182 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
1183 | { | |
cbdeadca JJ |
1184 | int ans2; |
1185 | int retval; | |
1186 | int def_value; | |
1187 | char def_answer, not_def_answer; | |
588dcc3e | 1188 | char *y_string, *n_string, *question, *prompt; |
260c0b2a DE |
1189 | /* Used to add duration we waited for user to respond to |
1190 | prompt_for_continue_wait_time. */ | |
1191 | struct timeval prompt_started, prompt_ended, prompt_delta; | |
cbdeadca JJ |
1192 | |
1193 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
1194 | if (defchar == '\0') |
1195 | { | |
1196 | def_value = 1; | |
1197 | def_answer = 'Y'; | |
1198 | not_def_answer = 'N'; | |
1199 | y_string = "y"; | |
1200 | n_string = "n"; | |
1201 | } | |
1202 | else if (defchar == 'y') | |
cbdeadca JJ |
1203 | { |
1204 | def_value = 1; | |
1205 | def_answer = 'Y'; | |
1206 | not_def_answer = 'N'; | |
1207 | y_string = "[y]"; | |
1208 | n_string = "n"; | |
1209 | } | |
1210 | else | |
1211 | { | |
1212 | def_value = 0; | |
1213 | def_answer = 'N'; | |
1214 | not_def_answer = 'Y'; | |
1215 | y_string = "y"; | |
1216 | n_string = "[n]"; | |
1217 | } | |
1218 | ||
981c7f5a | 1219 | /* Automatically answer the default value if the user did not want |
a502cf95 | 1220 | prompts or the command was issued with the server prefix. */ |
e360902b | 1221 | if (!confirm || server_command) |
981c7f5a DJ |
1222 | return def_value; |
1223 | ||
1224 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 1225 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
1226 | way, important error messages don't get lost when talking to GDB |
1227 | over a pipe. */ | |
c63a1f86 | 1228 | if (! input_from_terminal_p ()) |
981c7f5a DJ |
1229 | { |
1230 | wrap_here (""); | |
1231 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1232 | ||
3e43a32a MS |
1233 | printf_filtered (_("(%s or %s) [answered %c; " |
1234 | "input not from terminal]\n"), | |
981c7f5a DJ |
1235 | y_string, n_string, def_answer); |
1236 | gdb_flush (gdb_stdout); | |
1237 | ||
1238 | return def_value; | |
1239 | } | |
1240 | ||
9a4105ab | 1241 | if (deprecated_query_hook) |
cbdeadca | 1242 | { |
9a4105ab | 1243 | return deprecated_query_hook (ctlstr, args); |
cbdeadca JJ |
1244 | } |
1245 | ||
981c7f5a DJ |
1246 | /* Format the question outside of the loop, to avoid reusing args. */ |
1247 | question = xstrvprintf (ctlstr, args); | |
588dcc3e PP |
1248 | prompt = xstrprintf (_("%s%s(%s or %s) %s"), |
1249 | annotation_level > 1 ? "\n\032\032pre-query\n" : "", | |
1250 | question, y_string, n_string, | |
1251 | annotation_level > 1 ? "\n\032\032query\n" : ""); | |
1252 | xfree (question); | |
981c7f5a | 1253 | |
260c0b2a DE |
1254 | /* Used for calculating time spend waiting for user. */ |
1255 | gettimeofday (&prompt_started, NULL); | |
1256 | ||
cbdeadca JJ |
1257 | while (1) |
1258 | { | |
588dcc3e | 1259 | char *response, answer; |
cbdeadca | 1260 | |
cbdeadca | 1261 | gdb_flush (gdb_stdout); |
588dcc3e | 1262 | response = gdb_readline_wrapper (prompt); |
cbdeadca | 1263 | |
588dcc3e | 1264 | if (response == NULL) /* C-d */ |
cbdeadca | 1265 | { |
fa3fd85b | 1266 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
1267 | retval = def_value; |
1268 | break; | |
1269 | } | |
588dcc3e PP |
1270 | |
1271 | answer = response[0]; | |
1272 | xfree (response); | |
cbdeadca JJ |
1273 | |
1274 | if (answer >= 'a') | |
1275 | answer -= 040; | |
1276 | /* Check answer. For the non-default, the user must specify | |
1277 | the non-default explicitly. */ | |
1278 | if (answer == not_def_answer) | |
1279 | { | |
1280 | retval = !def_value; | |
1281 | break; | |
1282 | } | |
981c7f5a DJ |
1283 | /* Otherwise, if a default was specified, the user may either |
1284 | specify the required input or have it default by entering | |
1285 | nothing. */ | |
1286 | if (answer == def_answer | |
588dcc3e | 1287 | || (defchar != '\0' && answer == '\0')) |
cbdeadca JJ |
1288 | { |
1289 | retval = def_value; | |
1290 | break; | |
1291 | } | |
1292 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 1293 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
1294 | y_string, n_string); |
1295 | } | |
1296 | ||
260c0b2a DE |
1297 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
1298 | gettimeofday (&prompt_ended, NULL); | |
1299 | timeval_sub (&prompt_delta, &prompt_ended, &prompt_started); | |
1300 | timeval_add (&prompt_for_continue_wait_time, | |
1301 | &prompt_for_continue_wait_time, &prompt_delta); | |
1302 | ||
588dcc3e | 1303 | xfree (prompt); |
cbdeadca | 1304 | if (annotation_level > 1) |
a3f17187 | 1305 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
1306 | return retval; |
1307 | } | |
1308 | \f | |
1309 | ||
1310 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1311 | answer is yes, or 0 if answer is defaulted. | |
1312 | Takes three args which are given to printf to print the question. | |
1313 | The first, a control string, should end in "? ". | |
1314 | It should not say how to answer, because we do that. */ | |
1315 | ||
1316 | int | |
1317 | nquery (const char *ctlstr, ...) | |
1318 | { | |
1319 | va_list args; | |
899500d6 | 1320 | int ret; |
cbdeadca JJ |
1321 | |
1322 | va_start (args, ctlstr); | |
899500d6 | 1323 | ret = defaulted_query (ctlstr, 'n', args); |
cbdeadca | 1324 | va_end (args); |
899500d6 | 1325 | return ret; |
cbdeadca JJ |
1326 | } |
1327 | ||
1328 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1329 | answer is yes, or 1 if answer is defaulted. | |
1330 | Takes three args which are given to printf to print the question. | |
1331 | The first, a control string, should end in "? ". | |
1332 | It should not say how to answer, because we do that. */ | |
1333 | ||
1334 | int | |
1335 | yquery (const char *ctlstr, ...) | |
1336 | { | |
1337 | va_list args; | |
899500d6 | 1338 | int ret; |
cbdeadca JJ |
1339 | |
1340 | va_start (args, ctlstr); | |
899500d6 | 1341 | ret = defaulted_query (ctlstr, 'y', args); |
cbdeadca | 1342 | va_end (args); |
899500d6 | 1343 | return ret; |
cbdeadca JJ |
1344 | } |
1345 | ||
981c7f5a DJ |
1346 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
1347 | Takes three args which are given to printf to print the question. | |
1348 | The first, a control string, should end in "? ". | |
1349 | It should not say how to answer, because we do that. */ | |
1350 | ||
1351 | int | |
1352 | query (const char *ctlstr, ...) | |
1353 | { | |
1354 | va_list args; | |
899500d6 | 1355 | int ret; |
981c7f5a DJ |
1356 | |
1357 | va_start (args, ctlstr); | |
899500d6 | 1358 | ret = defaulted_query (ctlstr, '\0', args); |
981c7f5a | 1359 | va_end (args); |
899500d6 | 1360 | return ret; |
981c7f5a DJ |
1361 | } |
1362 | ||
6c7a06a3 TT |
1363 | /* A helper for parse_escape that converts a host character to a |
1364 | target character. C is the host character. If conversion is | |
1365 | possible, then the target character is stored in *TARGET_C and the | |
1366 | function returns 1. Otherwise, the function returns 0. */ | |
1367 | ||
1368 | static int | |
f870a310 | 1369 | host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c) |
234b45d4 | 1370 | { |
6c7a06a3 TT |
1371 | struct obstack host_data; |
1372 | char the_char = c; | |
1373 | struct cleanup *cleanups; | |
1374 | int result = 0; | |
234b45d4 | 1375 | |
6c7a06a3 TT |
1376 | obstack_init (&host_data); |
1377 | cleanups = make_cleanup_obstack_free (&host_data); | |
234b45d4 | 1378 | |
f870a310 | 1379 | convert_between_encodings (target_charset (gdbarch), host_charset (), |
ac91cd70 PA |
1380 | (gdb_byte *) &the_char, 1, 1, |
1381 | &host_data, translit_none); | |
6c7a06a3 TT |
1382 | |
1383 | if (obstack_object_size (&host_data) == 1) | |
1384 | { | |
1385 | result = 1; | |
1386 | *target_c = *(char *) obstack_base (&host_data); | |
1387 | } | |
1388 | ||
1389 | do_cleanups (cleanups); | |
1390 | return result; | |
234b45d4 KB |
1391 | } |
1392 | ||
c906108c SS |
1393 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1394 | containing a pointer to the string to parse. That pointer | |
1395 | should point to the character after the \. That pointer | |
1396 | is updated past the characters we use. The value of the | |
1397 | escape sequence is returned. | |
1398 | ||
1399 | A negative value means the sequence \ newline was seen, | |
1400 | which is supposed to be equivalent to nothing at all. | |
1401 | ||
1402 | If \ is followed by a null character, we return a negative | |
1403 | value and leave the string pointer pointing at the null character. | |
1404 | ||
1405 | If \ is followed by 000, we return 0 and leave the string pointer | |
1406 | after the zeros. A value of 0 does not mean end of string. */ | |
1407 | ||
1408 | int | |
d7561cbb | 1409 | parse_escape (struct gdbarch *gdbarch, const char **string_ptr) |
c906108c | 1410 | { |
581e13c1 | 1411 | int target_char = -2; /* Initialize to avoid GCC warnings. */ |
52f0bd74 | 1412 | int c = *(*string_ptr)++; |
e0627e85 | 1413 | |
6c7a06a3 TT |
1414 | switch (c) |
1415 | { | |
8731e58e AC |
1416 | case '\n': |
1417 | return -2; | |
1418 | case 0: | |
1419 | (*string_ptr)--; | |
1420 | return 0; | |
8731e58e AC |
1421 | |
1422 | case '0': | |
1423 | case '1': | |
1424 | case '2': | |
1425 | case '3': | |
1426 | case '4': | |
1427 | case '5': | |
1428 | case '6': | |
1429 | case '7': | |
1430 | { | |
6c7a06a3 | 1431 | int i = host_hex_value (c); |
aa1ee363 | 1432 | int count = 0; |
8731e58e AC |
1433 | while (++count < 3) |
1434 | { | |
5cb316ef | 1435 | c = (**string_ptr); |
6c7a06a3 | 1436 | if (isdigit (c) && c != '8' && c != '9') |
8731e58e | 1437 | { |
5cb316ef | 1438 | (*string_ptr)++; |
8731e58e | 1439 | i *= 8; |
6c7a06a3 | 1440 | i += host_hex_value (c); |
8731e58e AC |
1441 | } |
1442 | else | |
1443 | { | |
8731e58e AC |
1444 | break; |
1445 | } | |
1446 | } | |
1447 | return i; | |
1448 | } | |
6c7a06a3 TT |
1449 | |
1450 | case 'a': | |
1451 | c = '\a'; | |
1452 | break; | |
1453 | case 'b': | |
1454 | c = '\b'; | |
1455 | break; | |
1456 | case 'f': | |
1457 | c = '\f'; | |
1458 | break; | |
1459 | case 'n': | |
1460 | c = '\n'; | |
1461 | break; | |
1462 | case 'r': | |
1463 | c = '\r'; | |
1464 | break; | |
1465 | case 't': | |
1466 | c = '\t'; | |
1467 | break; | |
1468 | case 'v': | |
1469 | c = '\v'; | |
1470 | break; | |
1471 | ||
1472 | default: | |
1473 | break; | |
1474 | } | |
1475 | ||
f870a310 | 1476 | if (!host_char_to_target (gdbarch, c, &target_char)) |
3351ea09 JB |
1477 | error (_("The escape sequence `\\%c' is equivalent to plain `%c'," |
1478 | " which has no equivalent\nin the `%s' character set."), | |
905b671b | 1479 | c, c, target_charset (gdbarch)); |
6c7a06a3 | 1480 | return target_char; |
c906108c SS |
1481 | } |
1482 | \f | |
1483 | /* Print the character C on STREAM as part of the contents of a literal | |
1484 | string whose delimiter is QUOTER. Note that this routine should only | |
1485 | be call for printing things which are independent of the language | |
6ef284bd SM |
1486 | of the program being debugged. |
1487 | ||
1488 | printchar will normally escape backslashes and instances of QUOTER. If | |
1489 | QUOTER is 0, printchar won't escape backslashes or any quoting character. | |
1490 | As a side effect, if you pass the backslash character as the QUOTER, | |
1491 | printchar will escape backslashes as usual, but not any other quoting | |
1492 | character. */ | |
c906108c | 1493 | |
43e526b9 | 1494 | static void |
74f832da | 1495 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
bee0189a DJ |
1496 | void (*do_fprintf) (struct ui_file *, const char *, ...) |
1497 | ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter) | |
c906108c | 1498 | { |
c906108c SS |
1499 | c &= 0xFF; /* Avoid sign bit follies */ |
1500 | ||
c5aa993b JM |
1501 | if (c < 0x20 || /* Low control chars */ |
1502 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1503 | (sevenbit_strings && c >= 0x80)) | |
1504 | { /* high order bit set */ | |
1505 | switch (c) | |
1506 | { | |
1507 | case '\n': | |
43e526b9 | 1508 | do_fputs ("\\n", stream); |
c5aa993b JM |
1509 | break; |
1510 | case '\b': | |
43e526b9 | 1511 | do_fputs ("\\b", stream); |
c5aa993b JM |
1512 | break; |
1513 | case '\t': | |
43e526b9 | 1514 | do_fputs ("\\t", stream); |
c5aa993b JM |
1515 | break; |
1516 | case '\f': | |
43e526b9 | 1517 | do_fputs ("\\f", stream); |
c5aa993b JM |
1518 | break; |
1519 | case '\r': | |
43e526b9 | 1520 | do_fputs ("\\r", stream); |
c5aa993b JM |
1521 | break; |
1522 | case '\033': | |
43e526b9 | 1523 | do_fputs ("\\e", stream); |
c5aa993b JM |
1524 | break; |
1525 | case '\007': | |
43e526b9 | 1526 | do_fputs ("\\a", stream); |
c5aa993b JM |
1527 | break; |
1528 | default: | |
43e526b9 | 1529 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1530 | break; |
1531 | } | |
1532 | } | |
1533 | else | |
1534 | { | |
6ef284bd | 1535 | if (quoter != 0 && (c == '\\' || c == quoter)) |
43e526b9 JM |
1536 | do_fputs ("\\", stream); |
1537 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1538 | } |
c906108c | 1539 | } |
43e526b9 JM |
1540 | |
1541 | /* Print the character C on STREAM as part of the contents of a | |
1542 | literal string whose delimiter is QUOTER. Note that these routines | |
1543 | should only be call for printing things which are independent of | |
581e13c1 | 1544 | the language of the program being debugged. */ |
43e526b9 JM |
1545 | |
1546 | void | |
fba45db2 | 1547 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1548 | { |
1549 | while (*str) | |
1550 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1551 | } | |
1552 | ||
1553 | void | |
fba45db2 | 1554 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1555 | { |
1556 | while (*str) | |
1557 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1558 | } | |
1559 | ||
0876f84a DJ |
1560 | void |
1561 | fputstrn_filtered (const char *str, int n, int quoter, | |
1562 | struct ui_file *stream) | |
1563 | { | |
1564 | int i; | |
e0627e85 | 1565 | |
0876f84a DJ |
1566 | for (i = 0; i < n; i++) |
1567 | printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter); | |
1568 | } | |
1569 | ||
43e526b9 | 1570 | void |
8731e58e AC |
1571 | fputstrn_unfiltered (const char *str, int n, int quoter, |
1572 | struct ui_file *stream) | |
43e526b9 JM |
1573 | { |
1574 | int i; | |
5d502164 | 1575 | |
43e526b9 JM |
1576 | for (i = 0; i < n; i++) |
1577 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1578 | } | |
c906108c | 1579 | \f |
c5aa993b | 1580 | |
c906108c SS |
1581 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1582 | static unsigned int lines_per_page; | |
920d2a44 AC |
1583 | static void |
1584 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1585 | struct cmd_list_element *c, const char *value) | |
1586 | { | |
3e43a32a MS |
1587 | fprintf_filtered (file, |
1588 | _("Number of lines gdb thinks are in a page is %s.\n"), | |
920d2a44 AC |
1589 | value); |
1590 | } | |
eb0d3137 | 1591 | |
cbfbd72a | 1592 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1593 | static unsigned int chars_per_line; |
920d2a44 AC |
1594 | static void |
1595 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1596 | struct cmd_list_element *c, const char *value) | |
1597 | { | |
3e43a32a MS |
1598 | fprintf_filtered (file, |
1599 | _("Number of characters gdb thinks " | |
1600 | "are in a line is %s.\n"), | |
920d2a44 AC |
1601 | value); |
1602 | } | |
eb0d3137 | 1603 | |
c906108c SS |
1604 | /* Current count of lines printed on this page, chars on this line. */ |
1605 | static unsigned int lines_printed, chars_printed; | |
1606 | ||
1607 | /* Buffer and start column of buffered text, for doing smarter word- | |
1608 | wrapping. When someone calls wrap_here(), we start buffering output | |
1609 | that comes through fputs_filtered(). If we see a newline, we just | |
1610 | spit it out and forget about the wrap_here(). If we see another | |
1611 | wrap_here(), we spit it out and remember the newer one. If we see | |
1612 | the end of the line, we spit out a newline, the indent, and then | |
1613 | the buffered output. */ | |
1614 | ||
1615 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1616 | are waiting to be output (they have already been counted in chars_printed). | |
1617 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1618 | static char *wrap_buffer; | |
1619 | ||
1620 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1621 | static char *wrap_pointer; | |
1622 | ||
1623 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1624 | is non-zero. */ | |
1625 | static char *wrap_indent; | |
1626 | ||
1627 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1628 | is not in effect. */ | |
1629 | static int wrap_column; | |
c906108c | 1630 | \f |
c5aa993b | 1631 | |
eb0d3137 MK |
1632 | /* Inialize the number of lines per page and chars per line. */ |
1633 | ||
c906108c | 1634 | void |
fba45db2 | 1635 | init_page_info (void) |
c906108c | 1636 | { |
5da1313b JK |
1637 | if (batch_flag) |
1638 | { | |
1639 | lines_per_page = UINT_MAX; | |
1640 | chars_per_line = UINT_MAX; | |
1641 | } | |
1642 | else | |
c906108c | 1643 | #if defined(TUI) |
5ecb1806 | 1644 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1645 | #endif |
1646 | { | |
eb0d3137 | 1647 | int rows, cols; |
c906108c | 1648 | |
ec145965 EZ |
1649 | #if defined(__GO32__) |
1650 | rows = ScreenRows (); | |
1651 | cols = ScreenCols (); | |
1652 | lines_per_page = rows; | |
1653 | chars_per_line = cols; | |
1654 | #else | |
eb0d3137 MK |
1655 | /* Make sure Readline has initialized its terminal settings. */ |
1656 | rl_reset_terminal (NULL); | |
c906108c | 1657 | |
eb0d3137 MK |
1658 | /* Get the screen size from Readline. */ |
1659 | rl_get_screen_size (&rows, &cols); | |
1660 | lines_per_page = rows; | |
1661 | chars_per_line = cols; | |
c906108c | 1662 | |
1a66331e PM |
1663 | /* Readline should have fetched the termcap entry for us. |
1664 | Only try to use tgetnum function if rl_get_screen_size | |
1665 | did not return a useful value. */ | |
1666 | if (((rows <= 0) && (tgetnum ("li") < 0)) | |
1667 | /* Also disable paging if inside EMACS. */ | |
1668 | || getenv ("EMACS")) | |
eb0d3137 | 1669 | { |
1a66331e PM |
1670 | /* The number of lines per page is not mentioned in the terminal |
1671 | description or EMACS evironment variable is set. This probably | |
1672 | means that paging is not useful, so disable paging. */ | |
eb0d3137 MK |
1673 | lines_per_page = UINT_MAX; |
1674 | } | |
c906108c | 1675 | |
c906108c | 1676 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1677 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1678 | lines_per_page = UINT_MAX; |
eb0d3137 | 1679 | #endif |
ec145965 | 1680 | } |
eb0d3137 | 1681 | |
24b73f8e PP |
1682 | /* We handle SIGWINCH ourselves. */ |
1683 | rl_catch_sigwinch = 0; | |
1684 | ||
eb0d3137 | 1685 | set_screen_size (); |
c5aa993b | 1686 | set_width (); |
c906108c SS |
1687 | } |
1688 | ||
2437fd32 GB |
1689 | /* Return nonzero if filtered printing is initialized. */ |
1690 | int | |
1691 | filtered_printing_initialized (void) | |
1692 | { | |
1693 | return wrap_buffer != NULL; | |
1694 | } | |
1695 | ||
5da1313b JK |
1696 | /* Helper for make_cleanup_restore_page_info. */ |
1697 | ||
1698 | static void | |
1699 | do_restore_page_info_cleanup (void *arg) | |
1700 | { | |
1701 | set_screen_size (); | |
1702 | set_width (); | |
1703 | } | |
1704 | ||
1705 | /* Provide cleanup for restoring the terminal size. */ | |
1706 | ||
1707 | struct cleanup * | |
1708 | make_cleanup_restore_page_info (void) | |
1709 | { | |
1710 | struct cleanup *back_to; | |
1711 | ||
1712 | back_to = make_cleanup (do_restore_page_info_cleanup, NULL); | |
1713 | make_cleanup_restore_uinteger (&lines_per_page); | |
1714 | make_cleanup_restore_uinteger (&chars_per_line); | |
1715 | ||
1716 | return back_to; | |
1717 | } | |
1718 | ||
1719 | /* Temporarily set BATCH_FLAG and the associated unlimited terminal size. | |
1720 | Provide cleanup for restoring the original state. */ | |
1721 | ||
1722 | struct cleanup * | |
1723 | set_batch_flag_and_make_cleanup_restore_page_info (void) | |
1724 | { | |
1725 | struct cleanup *back_to = make_cleanup_restore_page_info (); | |
1726 | ||
1727 | make_cleanup_restore_integer (&batch_flag); | |
1728 | batch_flag = 1; | |
1729 | init_page_info (); | |
1730 | ||
1731 | return back_to; | |
1732 | } | |
1733 | ||
eb0d3137 MK |
1734 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1735 | ||
1736 | static void | |
1737 | set_screen_size (void) | |
1738 | { | |
1739 | int rows = lines_per_page; | |
1740 | int cols = chars_per_line; | |
1741 | ||
1742 | if (rows <= 0) | |
1743 | rows = INT_MAX; | |
1744 | ||
1745 | if (cols <= 0) | |
0caa462c | 1746 | cols = INT_MAX; |
eb0d3137 MK |
1747 | |
1748 | /* Update Readline's idea of the terminal size. */ | |
1749 | rl_set_screen_size (rows, cols); | |
1750 | } | |
1751 | ||
1752 | /* Reinitialize WRAP_BUFFER according to the current value of | |
1753 | CHARS_PER_LINE. */ | |
1754 | ||
c906108c | 1755 | static void |
fba45db2 | 1756 | set_width (void) |
c906108c SS |
1757 | { |
1758 | if (chars_per_line == 0) | |
c5aa993b | 1759 | init_page_info (); |
c906108c SS |
1760 | |
1761 | if (!wrap_buffer) | |
1762 | { | |
1763 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1764 | wrap_buffer[0] = '\0'; | |
1765 | } | |
1766 | else | |
1767 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 1768 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
1769 | } |
1770 | ||
c5aa993b | 1771 | static void |
fba45db2 | 1772 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1773 | { |
eb0d3137 | 1774 | set_screen_size (); |
c906108c SS |
1775 | set_width (); |
1776 | } | |
1777 | ||
eb0d3137 MK |
1778 | static void |
1779 | set_height_command (char *args, int from_tty, struct cmd_list_element *c) | |
1780 | { | |
1781 | set_screen_size (); | |
1782 | } | |
1783 | ||
d6e5e7f7 PP |
1784 | /* See utils.h. */ |
1785 | ||
1786 | void | |
1787 | set_screen_width_and_height (int width, int height) | |
1788 | { | |
1789 | lines_per_page = height; | |
1790 | chars_per_line = width; | |
1791 | ||
1792 | set_screen_size (); | |
1793 | set_width (); | |
1794 | } | |
1795 | ||
c906108c SS |
1796 | /* Wait, so the user can read what's on the screen. Prompt the user |
1797 | to continue by pressing RETURN. */ | |
1798 | ||
1799 | static void | |
fba45db2 | 1800 | prompt_for_continue (void) |
c906108c SS |
1801 | { |
1802 | char *ignore; | |
1803 | char cont_prompt[120]; | |
260c0b2a DE |
1804 | /* Used to add duration we waited for user to respond to |
1805 | prompt_for_continue_wait_time. */ | |
1806 | struct timeval prompt_started, prompt_ended, prompt_delta; | |
1807 | ||
1808 | gettimeofday (&prompt_started, NULL); | |
c906108c SS |
1809 | |
1810 | if (annotation_level > 1) | |
a3f17187 | 1811 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
1812 | |
1813 | strcpy (cont_prompt, | |
1814 | "---Type <return> to continue, or q <return> to quit---"); | |
1815 | if (annotation_level > 1) | |
1816 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1817 | ||
1818 | /* We must do this *before* we call gdb_readline, else it will eventually | |
1819 | call us -- thinking that we're trying to print beyond the end of the | |
1820 | screen. */ | |
1821 | reinitialize_more_filter (); | |
1822 | ||
1823 | immediate_quit++; | |
522002f9 | 1824 | QUIT; |
82584158 PA |
1825 | |
1826 | /* We'll need to handle input. */ | |
1827 | target_terminal_ours (); | |
1828 | ||
c906108c SS |
1829 | /* On a real operating system, the user can quit with SIGINT. |
1830 | But not on GO32. | |
1831 | ||
1832 | 'q' is provided on all systems so users don't have to change habits | |
1833 | from system to system, and because telling them what to do in | |
1834 | the prompt is more user-friendly than expecting them to think of | |
1835 | SIGINT. */ | |
1836 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
1837 | whereas control-C to gdb_readline will cause the user to get dumped | |
1838 | out to DOS. */ | |
b4f5539f | 1839 | ignore = gdb_readline_wrapper (cont_prompt); |
c906108c | 1840 | |
260c0b2a DE |
1841 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
1842 | gettimeofday (&prompt_ended, NULL); | |
1843 | timeval_sub (&prompt_delta, &prompt_ended, &prompt_started); | |
1844 | timeval_add (&prompt_for_continue_wait_time, | |
1845 | &prompt_for_continue_wait_time, &prompt_delta); | |
1846 | ||
c906108c | 1847 | if (annotation_level > 1) |
a3f17187 | 1848 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c SS |
1849 | |
1850 | if (ignore) | |
1851 | { | |
1852 | char *p = ignore; | |
5d502164 | 1853 | |
c906108c SS |
1854 | while (*p == ' ' || *p == '\t') |
1855 | ++p; | |
1856 | if (p[0] == 'q') | |
522002f9 | 1857 | quit (); |
b8c9b27d | 1858 | xfree (ignore); |
c906108c SS |
1859 | } |
1860 | immediate_quit--; | |
1861 | ||
1862 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1863 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1864 | reinitialize_more_filter (); | |
1865 | ||
581e13c1 | 1866 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ |
c906108c SS |
1867 | } |
1868 | ||
bd712aed DE |
1869 | /* Initalize timer to keep track of how long we waited for the user. */ |
1870 | ||
1871 | void | |
1872 | reset_prompt_for_continue_wait_time (void) | |
1873 | { | |
1874 | static const struct timeval zero_timeval = { 0 }; | |
1875 | ||
1876 | prompt_for_continue_wait_time = zero_timeval; | |
1877 | } | |
1878 | ||
1879 | /* Fetch the cumulative time spent in prompt_for_continue. */ | |
1880 | ||
1881 | struct timeval | |
1882 | get_prompt_for_continue_wait_time (void) | |
1883 | { | |
1884 | return prompt_for_continue_wait_time; | |
1885 | } | |
1886 | ||
c906108c SS |
1887 | /* Reinitialize filter; ie. tell it to reset to original values. */ |
1888 | ||
1889 | void | |
fba45db2 | 1890 | reinitialize_more_filter (void) |
c906108c SS |
1891 | { |
1892 | lines_printed = 0; | |
1893 | chars_printed = 0; | |
1894 | } | |
1895 | ||
1896 | /* Indicate that if the next sequence of characters overflows the line, | |
581e13c1 | 1897 | a newline should be inserted here rather than when it hits the end. |
c906108c SS |
1898 | If INDENT is non-null, it is a string to be printed to indent the |
1899 | wrapped part on the next line. INDENT must remain accessible until | |
1900 | the next call to wrap_here() or until a newline is printed through | |
1901 | fputs_filtered(). | |
1902 | ||
1903 | If the line is already overfull, we immediately print a newline and | |
1904 | the indentation, and disable further wrapping. | |
1905 | ||
1906 | If we don't know the width of lines, but we know the page height, | |
1907 | we must not wrap words, but should still keep track of newlines | |
1908 | that were explicitly printed. | |
1909 | ||
1910 | INDENT should not contain tabs, as that will mess up the char count | |
1911 | on the next line. FIXME. | |
1912 | ||
1913 | This routine is guaranteed to force out any output which has been | |
1914 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1915 | used to force out output from the wrap_buffer. */ | |
1916 | ||
1917 | void | |
fba45db2 | 1918 | wrap_here (char *indent) |
c906108c | 1919 | { |
581e13c1 | 1920 | /* This should have been allocated, but be paranoid anyway. */ |
c906108c | 1921 | if (!wrap_buffer) |
3e43a32a MS |
1922 | internal_error (__FILE__, __LINE__, |
1923 | _("failed internal consistency check")); | |
c906108c SS |
1924 | |
1925 | if (wrap_buffer[0]) | |
1926 | { | |
1927 | *wrap_pointer = '\0'; | |
1928 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1929 | } | |
1930 | wrap_pointer = wrap_buffer; | |
1931 | wrap_buffer[0] = '\0'; | |
3e43a32a | 1932 | if (chars_per_line == UINT_MAX) /* No line overflow checking. */ |
c906108c SS |
1933 | { |
1934 | wrap_column = 0; | |
1935 | } | |
1936 | else if (chars_printed >= chars_per_line) | |
1937 | { | |
1938 | puts_filtered ("\n"); | |
1939 | if (indent != NULL) | |
1940 | puts_filtered (indent); | |
1941 | wrap_column = 0; | |
1942 | } | |
1943 | else | |
1944 | { | |
1945 | wrap_column = chars_printed; | |
1946 | if (indent == NULL) | |
1947 | wrap_indent = ""; | |
1948 | else | |
1949 | wrap_indent = indent; | |
1950 | } | |
1951 | } | |
1952 | ||
4a351cef | 1953 | /* Print input string to gdb_stdout, filtered, with wrap, |
581e13c1 | 1954 | arranging strings in columns of n chars. String can be |
4a351cef AF |
1955 | right or left justified in the column. Never prints |
1956 | trailing spaces. String should never be longer than | |
1957 | width. FIXME: this could be useful for the EXAMINE | |
581e13c1 | 1958 | command, which currently doesn't tabulate very well. */ |
4a351cef AF |
1959 | |
1960 | void | |
1961 | puts_filtered_tabular (char *string, int width, int right) | |
1962 | { | |
1963 | int spaces = 0; | |
1964 | int stringlen; | |
1965 | char *spacebuf; | |
1966 | ||
1967 | gdb_assert (chars_per_line > 0); | |
1968 | if (chars_per_line == UINT_MAX) | |
1969 | { | |
1970 | fputs_filtered (string, gdb_stdout); | |
1971 | fputs_filtered ("\n", gdb_stdout); | |
1972 | return; | |
1973 | } | |
1974 | ||
1975 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
1976 | fputs_filtered ("\n", gdb_stdout); | |
1977 | ||
1978 | if (width >= chars_per_line) | |
1979 | width = chars_per_line - 1; | |
1980 | ||
1981 | stringlen = strlen (string); | |
1982 | ||
1983 | if (chars_printed > 0) | |
1984 | spaces = width - (chars_printed - 1) % width - 1; | |
1985 | if (right) | |
1986 | spaces += width - stringlen; | |
1987 | ||
1988 | spacebuf = alloca (spaces + 1); | |
1989 | spacebuf[spaces] = '\0'; | |
1990 | while (spaces--) | |
1991 | spacebuf[spaces] = ' '; | |
1992 | ||
1993 | fputs_filtered (spacebuf, gdb_stdout); | |
1994 | fputs_filtered (string, gdb_stdout); | |
1995 | } | |
1996 | ||
1997 | ||
c906108c | 1998 | /* Ensure that whatever gets printed next, using the filtered output |
581e13c1 | 1999 | commands, starts at the beginning of the line. I.e. if there is |
c906108c | 2000 | any pending output for the current line, flush it and start a new |
581e13c1 | 2001 | line. Otherwise do nothing. */ |
c906108c SS |
2002 | |
2003 | void | |
fba45db2 | 2004 | begin_line (void) |
c906108c SS |
2005 | { |
2006 | if (chars_printed > 0) | |
2007 | { | |
2008 | puts_filtered ("\n"); | |
2009 | } | |
2010 | } | |
2011 | ||
ac9a91a7 | 2012 | |
c906108c SS |
2013 | /* Like fputs but if FILTER is true, pause after every screenful. |
2014 | ||
2015 | Regardless of FILTER can wrap at points other than the final | |
2016 | character of a line. | |
2017 | ||
2018 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
2019 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
2020 | anything. | |
2021 | ||
2022 | Note that a longjmp to top level may occur in this routine (only if | |
2023 | FILTER is true) (since prompt_for_continue may do so) so this | |
2024 | routine should not be called when cleanups are not in place. */ | |
2025 | ||
2026 | static void | |
fba45db2 KB |
2027 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
2028 | int filter) | |
c906108c SS |
2029 | { |
2030 | const char *lineptr; | |
2031 | ||
2032 | if (linebuffer == 0) | |
2033 | return; | |
2034 | ||
2035 | /* Don't do any filtering if it is disabled. */ | |
390a8aca | 2036 | if (stream != gdb_stdout |
b2e7f004 JK |
2037 | || !pagination_enabled |
2038 | || batch_flag | |
390a8aca | 2039 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) |
58dadb1b | 2040 | || top_level_interpreter () == NULL |
390a8aca | 2041 | || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) |
c906108c SS |
2042 | { |
2043 | fputs_unfiltered (linebuffer, stream); | |
2044 | return; | |
2045 | } | |
2046 | ||
2047 | /* Go through and output each character. Show line extension | |
2048 | when this is necessary; prompt user for new page when this is | |
2049 | necessary. */ | |
c5aa993b | 2050 | |
c906108c SS |
2051 | lineptr = linebuffer; |
2052 | while (*lineptr) | |
2053 | { | |
2054 | /* Possible new page. */ | |
8731e58e | 2055 | if (filter && (lines_printed >= lines_per_page - 1)) |
c906108c SS |
2056 | prompt_for_continue (); |
2057 | ||
2058 | while (*lineptr && *lineptr != '\n') | |
2059 | { | |
2060 | /* Print a single line. */ | |
2061 | if (*lineptr == '\t') | |
2062 | { | |
2063 | if (wrap_column) | |
2064 | *wrap_pointer++ = '\t'; | |
2065 | else | |
2066 | fputc_unfiltered ('\t', stream); | |
2067 | /* Shifting right by 3 produces the number of tab stops | |
2068 | we have already passed, and then adding one and | |
c5aa993b | 2069 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
2070 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
2071 | lineptr++; | |
2072 | } | |
2073 | else | |
2074 | { | |
2075 | if (wrap_column) | |
2076 | *wrap_pointer++ = *lineptr; | |
2077 | else | |
c5aa993b | 2078 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
2079 | chars_printed++; |
2080 | lineptr++; | |
2081 | } | |
c5aa993b | 2082 | |
c906108c SS |
2083 | if (chars_printed >= chars_per_line) |
2084 | { | |
2085 | unsigned int save_chars = chars_printed; | |
2086 | ||
2087 | chars_printed = 0; | |
2088 | lines_printed++; | |
2089 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
2090 | if chars_per_line is right, we probably just overflowed |
2091 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
2092 | if (wrap_column) |
2093 | fputc_unfiltered ('\n', stream); | |
2094 | ||
2095 | /* Possible new page. */ | |
2096 | if (lines_printed >= lines_per_page - 1) | |
2097 | prompt_for_continue (); | |
2098 | ||
581e13c1 | 2099 | /* Now output indentation and wrapped string. */ |
c906108c SS |
2100 | if (wrap_column) |
2101 | { | |
2102 | fputs_unfiltered (wrap_indent, stream); | |
581e13c1 MS |
2103 | *wrap_pointer = '\0'; /* Null-terminate saved stuff, */ |
2104 | fputs_unfiltered (wrap_buffer, stream); /* and eject it. */ | |
c906108c SS |
2105 | /* FIXME, this strlen is what prevents wrap_indent from |
2106 | containing tabs. However, if we recurse to print it | |
2107 | and count its chars, we risk trouble if wrap_indent is | |
581e13c1 | 2108 | longer than (the user settable) chars_per_line. |
c906108c SS |
2109 | Note also that this can set chars_printed > chars_per_line |
2110 | if we are printing a long string. */ | |
2111 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 2112 | + (save_chars - wrap_column); |
c906108c SS |
2113 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
2114 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
2115 | wrap_column = 0; /* And disable fancy wrap */ |
2116 | } | |
c906108c SS |
2117 | } |
2118 | } | |
2119 | ||
2120 | if (*lineptr == '\n') | |
2121 | { | |
2122 | chars_printed = 0; | |
3e43a32a MS |
2123 | wrap_here ((char *) 0); /* Spit out chars, cancel |
2124 | further wraps. */ | |
c906108c SS |
2125 | lines_printed++; |
2126 | fputc_unfiltered ('\n', stream); | |
2127 | lineptr++; | |
2128 | } | |
2129 | } | |
2130 | } | |
2131 | ||
2132 | void | |
fba45db2 | 2133 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
2134 | { |
2135 | fputs_maybe_filtered (linebuffer, stream, 1); | |
2136 | } | |
2137 | ||
2138 | int | |
fba45db2 | 2139 | putchar_unfiltered (int c) |
c906108c | 2140 | { |
11cf8741 | 2141 | char buf = c; |
e0627e85 | 2142 | |
d9fcf2fb | 2143 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
2144 | return c; |
2145 | } | |
2146 | ||
d1f4cff8 AC |
2147 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
2148 | May return nonlocally. */ | |
2149 | ||
2150 | int | |
2151 | putchar_filtered (int c) | |
2152 | { | |
2153 | return fputc_filtered (c, gdb_stdout); | |
2154 | } | |
2155 | ||
c906108c | 2156 | int |
fba45db2 | 2157 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 2158 | { |
11cf8741 | 2159 | char buf = c; |
e0627e85 | 2160 | |
d9fcf2fb | 2161 | ui_file_write (stream, &buf, 1); |
c906108c SS |
2162 | return c; |
2163 | } | |
2164 | ||
2165 | int | |
fba45db2 | 2166 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
2167 | { |
2168 | char buf[2]; | |
2169 | ||
2170 | buf[0] = c; | |
2171 | buf[1] = 0; | |
2172 | fputs_filtered (buf, stream); | |
2173 | return c; | |
2174 | } | |
2175 | ||
2176 | /* puts_debug is like fputs_unfiltered, except it prints special | |
2177 | characters in printable fashion. */ | |
2178 | ||
2179 | void | |
fba45db2 | 2180 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
2181 | { |
2182 | int ch; | |
2183 | ||
2184 | /* Print prefix and suffix after each line. */ | |
2185 | static int new_line = 1; | |
2186 | static int return_p = 0; | |
2187 | static char *prev_prefix = ""; | |
2188 | static char *prev_suffix = ""; | |
2189 | ||
2190 | if (*string == '\n') | |
2191 | return_p = 0; | |
2192 | ||
2193 | /* If the prefix is changing, print the previous suffix, a new line, | |
2194 | and the new prefix. */ | |
c5aa993b | 2195 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2196 | { |
9846de1b JM |
2197 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2198 | fputs_unfiltered ("\n", gdb_stdlog); | |
2199 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2200 | } |
2201 | ||
2202 | /* Print prefix if we printed a newline during the previous call. */ | |
2203 | if (new_line) | |
2204 | { | |
2205 | new_line = 0; | |
9846de1b | 2206 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2207 | } |
2208 | ||
2209 | prev_prefix = prefix; | |
2210 | prev_suffix = suffix; | |
2211 | ||
2212 | /* Output characters in a printable format. */ | |
2213 | while ((ch = *string++) != '\0') | |
2214 | { | |
2215 | switch (ch) | |
c5aa993b | 2216 | { |
c906108c SS |
2217 | default: |
2218 | if (isprint (ch)) | |
9846de1b | 2219 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2220 | |
2221 | else | |
9846de1b | 2222 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2223 | break; |
2224 | ||
c5aa993b JM |
2225 | case '\\': |
2226 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2227 | break; | |
2228 | case '\b': | |
2229 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2230 | break; | |
2231 | case '\f': | |
2232 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2233 | break; | |
2234 | case '\n': | |
2235 | new_line = 1; | |
2236 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2237 | break; | |
2238 | case '\r': | |
2239 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2240 | break; | |
2241 | case '\t': | |
2242 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2243 | break; | |
2244 | case '\v': | |
2245 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2246 | break; | |
2247 | } | |
c906108c SS |
2248 | |
2249 | return_p = ch == '\r'; | |
2250 | } | |
2251 | ||
2252 | /* Print suffix if we printed a newline. */ | |
2253 | if (new_line) | |
2254 | { | |
9846de1b JM |
2255 | fputs_unfiltered (suffix, gdb_stdlog); |
2256 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2257 | } |
2258 | } | |
2259 | ||
2260 | ||
2261 | /* Print a variable number of ARGS using format FORMAT. If this | |
2262 | information is going to put the amount written (since the last call | |
2263 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2264 | call prompt_for_continue to get the users permision to continue. | |
2265 | ||
2266 | Unlike fprintf, this function does not return a value. | |
2267 | ||
2268 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2269 | fprintf (takes a stream to write on), and printf (the usual). | |
2270 | ||
2271 | Note also that a longjmp to top level may occur in this routine | |
2272 | (since prompt_for_continue may do so) so this routine should not be | |
2273 | called when cleanups are not in place. */ | |
2274 | ||
2275 | static void | |
fba45db2 KB |
2276 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2277 | va_list args, int filter) | |
c906108c SS |
2278 | { |
2279 | char *linebuffer; | |
2280 | struct cleanup *old_cleanups; | |
2281 | ||
e623b504 | 2282 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2283 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2284 | fputs_maybe_filtered (linebuffer, stream, filter); |
2285 | do_cleanups (old_cleanups); | |
2286 | } | |
2287 | ||
2288 | ||
2289 | void | |
fba45db2 | 2290 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2291 | { |
2292 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2293 | } | |
2294 | ||
2295 | void | |
fba45db2 | 2296 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2297 | { |
2298 | char *linebuffer; | |
2299 | struct cleanup *old_cleanups; | |
2300 | ||
e623b504 | 2301 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2302 | old_cleanups = make_cleanup (xfree, linebuffer); |
75feb17d DJ |
2303 | if (debug_timestamp && stream == gdb_stdlog) |
2304 | { | |
2305 | struct timeval tm; | |
2306 | char *timestamp; | |
6e5abd65 | 2307 | int len, need_nl; |
75feb17d DJ |
2308 | |
2309 | gettimeofday (&tm, NULL); | |
6e5abd65 PA |
2310 | |
2311 | len = strlen (linebuffer); | |
2312 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); | |
2313 | ||
2314 | timestamp = xstrprintf ("%ld:%ld %s%s", | |
2315 | (long) tm.tv_sec, (long) tm.tv_usec, | |
2316 | linebuffer, | |
2317 | need_nl ? "\n": ""); | |
75feb17d DJ |
2318 | make_cleanup (xfree, timestamp); |
2319 | fputs_unfiltered (timestamp, stream); | |
2320 | } | |
6e5abd65 PA |
2321 | else |
2322 | fputs_unfiltered (linebuffer, stream); | |
c906108c SS |
2323 | do_cleanups (old_cleanups); |
2324 | } | |
2325 | ||
2326 | void | |
fba45db2 | 2327 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2328 | { |
2329 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2330 | } | |
2331 | ||
2332 | void | |
fba45db2 | 2333 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2334 | { |
2335 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2336 | } | |
2337 | ||
c906108c | 2338 | void |
8731e58e | 2339 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2340 | { |
2341 | va_list args; | |
e0627e85 | 2342 | |
c906108c | 2343 | va_start (args, format); |
c906108c SS |
2344 | vfprintf_filtered (stream, format, args); |
2345 | va_end (args); | |
2346 | } | |
2347 | ||
c906108c | 2348 | void |
8731e58e | 2349 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2350 | { |
2351 | va_list args; | |
e0627e85 | 2352 | |
c906108c | 2353 | va_start (args, format); |
c906108c SS |
2354 | vfprintf_unfiltered (stream, format, args); |
2355 | va_end (args); | |
2356 | } | |
2357 | ||
2358 | /* Like fprintf_filtered, but prints its result indented. | |
2359 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2360 | ||
c906108c | 2361 | void |
8731e58e AC |
2362 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2363 | ...) | |
c906108c SS |
2364 | { |
2365 | va_list args; | |
e0627e85 | 2366 | |
c906108c | 2367 | va_start (args, format); |
c906108c SS |
2368 | print_spaces_filtered (spaces, stream); |
2369 | ||
2370 | vfprintf_filtered (stream, format, args); | |
2371 | va_end (args); | |
2372 | } | |
2373 | ||
2374 | ||
c906108c | 2375 | void |
8731e58e | 2376 | printf_filtered (const char *format, ...) |
c906108c SS |
2377 | { |
2378 | va_list args; | |
e0627e85 | 2379 | |
c906108c | 2380 | va_start (args, format); |
c906108c SS |
2381 | vfprintf_filtered (gdb_stdout, format, args); |
2382 | va_end (args); | |
2383 | } | |
2384 | ||
2385 | ||
c906108c | 2386 | void |
8731e58e | 2387 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2388 | { |
2389 | va_list args; | |
e0627e85 | 2390 | |
c906108c | 2391 | va_start (args, format); |
c906108c SS |
2392 | vfprintf_unfiltered (gdb_stdout, format, args); |
2393 | va_end (args); | |
2394 | } | |
2395 | ||
2396 | /* Like printf_filtered, but prints it's result indented. | |
2397 | Called as printfi_filtered (spaces, format, ...); */ | |
2398 | ||
c906108c | 2399 | void |
8731e58e | 2400 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2401 | { |
2402 | va_list args; | |
e0627e85 | 2403 | |
c906108c | 2404 | va_start (args, format); |
c906108c SS |
2405 | print_spaces_filtered (spaces, gdb_stdout); |
2406 | vfprintf_filtered (gdb_stdout, format, args); | |
2407 | va_end (args); | |
2408 | } | |
2409 | ||
2410 | /* Easy -- but watch out! | |
2411 | ||
2412 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2413 | This one doesn't, and had better not! */ | |
2414 | ||
2415 | void | |
fba45db2 | 2416 | puts_filtered (const char *string) |
c906108c SS |
2417 | { |
2418 | fputs_filtered (string, gdb_stdout); | |
2419 | } | |
2420 | ||
2421 | void | |
fba45db2 | 2422 | puts_unfiltered (const char *string) |
c906108c SS |
2423 | { |
2424 | fputs_unfiltered (string, gdb_stdout); | |
2425 | } | |
2426 | ||
2427 | /* Return a pointer to N spaces and a null. The pointer is good | |
2428 | until the next call to here. */ | |
2429 | char * | |
fba45db2 | 2430 | n_spaces (int n) |
c906108c | 2431 | { |
392a587b JM |
2432 | char *t; |
2433 | static char *spaces = 0; | |
2434 | static int max_spaces = -1; | |
c906108c SS |
2435 | |
2436 | if (n > max_spaces) | |
2437 | { | |
2438 | if (spaces) | |
b8c9b27d | 2439 | xfree (spaces); |
c5aa993b JM |
2440 | spaces = (char *) xmalloc (n + 1); |
2441 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2442 | *--t = ' '; |
2443 | spaces[n] = '\0'; | |
2444 | max_spaces = n; | |
2445 | } | |
2446 | ||
2447 | return spaces + max_spaces - n; | |
2448 | } | |
2449 | ||
2450 | /* Print N spaces. */ | |
2451 | void | |
fba45db2 | 2452 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2453 | { |
2454 | fputs_filtered (n_spaces (n), stream); | |
2455 | } | |
2456 | \f | |
4a351cef | 2457 | /* C++/ObjC demangler stuff. */ |
c906108c | 2458 | |
389e51db AC |
2459 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2460 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2461 | If the name is not mangled, or the language for the name is unknown, or | |
581e13c1 | 2462 | demangling is off, the name is printed in its "raw" form. */ |
c906108c SS |
2463 | |
2464 | void | |
0d5cff50 | 2465 | fprintf_symbol_filtered (struct ui_file *stream, const char *name, |
8731e58e | 2466 | enum language lang, int arg_mode) |
c906108c SS |
2467 | { |
2468 | char *demangled; | |
2469 | ||
2470 | if (name != NULL) | |
2471 | { | |
2472 | /* If user wants to see raw output, no problem. */ | |
2473 | if (!demangle) | |
2474 | { | |
2475 | fputs_filtered (name, stream); | |
2476 | } | |
2477 | else | |
2478 | { | |
9a3d7dfd | 2479 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2480 | fputs_filtered (demangled ? demangled : name, stream); |
2481 | if (demangled != NULL) | |
2482 | { | |
b8c9b27d | 2483 | xfree (demangled); |
c906108c SS |
2484 | } |
2485 | } | |
2486 | } | |
2487 | } | |
2488 | ||
2489 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2490 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2491 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2492 | |
c906108c SS |
2493 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2494 | This "feature" is useful when searching for matching C++ function names | |
2495 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
581e13c1 | 2496 | function). */ |
c906108c SS |
2497 | |
2498 | int | |
fba45db2 | 2499 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2500 | { |
2501 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2502 | { | |
2503 | while (isspace (*string1)) | |
2504 | { | |
2505 | string1++; | |
2506 | } | |
2507 | while (isspace (*string2)) | |
2508 | { | |
2509 | string2++; | |
2510 | } | |
559a7a62 JK |
2511 | if (case_sensitivity == case_sensitive_on && *string1 != *string2) |
2512 | break; | |
2513 | if (case_sensitivity == case_sensitive_off | |
2514 | && (tolower ((unsigned char) *string1) | |
2515 | != tolower ((unsigned char) *string2))) | |
2516 | break; | |
c906108c SS |
2517 | if (*string1 != '\0') |
2518 | { | |
2519 | string1++; | |
2520 | string2++; | |
2521 | } | |
2522 | } | |
2523 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2524 | } | |
2de7ced7 | 2525 | |
0fe19209 DC |
2526 | /* This is like strcmp except that it ignores whitespace and treats |
2527 | '(' as the first non-NULL character in terms of ordering. Like | |
2528 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2529 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2530 | according to that ordering. | |
2531 | ||
2532 | If a list is sorted according to this function and if you want to | |
2533 | find names in the list that match some fixed NAME according to | |
2534 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2535 | where this function would put NAME. | |
2536 | ||
559a7a62 JK |
2537 | This function must be neutral to the CASE_SENSITIVITY setting as the user |
2538 | may choose it during later lookup. Therefore this function always sorts | |
2539 | primarily case-insensitively and secondarily case-sensitively. | |
2540 | ||
0fe19209 DC |
2541 | Here are some examples of why using strcmp to sort is a bad idea: |
2542 | ||
2543 | Whitespace example: | |
2544 | ||
2545 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2546 | we try to do a search for "foo<char*>", strcmp will locate this | |
2547 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2548 | will start looking at strings beginning with "goo", and will never | |
2549 | see the correct match of "foo<char *>". | |
2550 | ||
2551 | Parenthesis example: | |
2552 | ||
2553 | In practice, this is less like to be an issue, but I'll give it a | |
2554 | shot. Let's assume that '$' is a legitimate character to occur in | |
2555 | symbols. (Which may well even be the case on some systems.) Then | |
2556 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2557 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2558 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2559 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2560 | "foo") is false, so it won't proceed to the actual match of | |
2561 | "foo(int)" with "foo". */ | |
2562 | ||
2563 | int | |
2564 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2565 | { | |
559a7a62 JK |
2566 | const char *saved_string1 = string1, *saved_string2 = string2; |
2567 | enum case_sensitivity case_pass = case_sensitive_off; | |
2568 | ||
2569 | for (;;) | |
0fe19209 | 2570 | { |
b11b1f88 JK |
2571 | /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'. |
2572 | Provide stub characters if we are already at the end of one of the | |
2573 | strings. */ | |
2574 | char c1 = 'X', c2 = 'X'; | |
2575 | ||
2576 | while (*string1 != '\0' && *string2 != '\0') | |
0fe19209 | 2577 | { |
b11b1f88 JK |
2578 | while (isspace (*string1)) |
2579 | string1++; | |
2580 | while (isspace (*string2)) | |
2581 | string2++; | |
2582 | ||
559a7a62 JK |
2583 | switch (case_pass) |
2584 | { | |
2585 | case case_sensitive_off: | |
2586 | c1 = tolower ((unsigned char) *string1); | |
2587 | c2 = tolower ((unsigned char) *string2); | |
2588 | break; | |
2589 | case case_sensitive_on: | |
b11b1f88 JK |
2590 | c1 = *string1; |
2591 | c2 = *string2; | |
559a7a62 JK |
2592 | break; |
2593 | } | |
b11b1f88 JK |
2594 | if (c1 != c2) |
2595 | break; | |
2596 | ||
2597 | if (*string1 != '\0') | |
2598 | { | |
2599 | string1++; | |
2600 | string2++; | |
2601 | } | |
0fe19209 | 2602 | } |
b11b1f88 JK |
2603 | |
2604 | switch (*string1) | |
0fe19209 | 2605 | { |
b11b1f88 JK |
2606 | /* Characters are non-equal unless they're both '\0'; we want to |
2607 | make sure we get the comparison right according to our | |
2608 | comparison in the cases where one of them is '\0' or '('. */ | |
2609 | case '\0': | |
2610 | if (*string2 == '\0') | |
559a7a62 | 2611 | break; |
b11b1f88 JK |
2612 | else |
2613 | return -1; | |
2614 | case '(': | |
2615 | if (*string2 == '\0') | |
2616 | return 1; | |
2617 | else | |
2618 | return -1; | |
2619 | default: | |
2620 | if (*string2 == '\0' || *string2 == '(') | |
2621 | return 1; | |
559a7a62 JK |
2622 | else if (c1 > c2) |
2623 | return 1; | |
2624 | else if (c1 < c2) | |
2625 | return -1; | |
2626 | /* PASSTHRU */ | |
0fe19209 | 2627 | } |
559a7a62 JK |
2628 | |
2629 | if (case_pass == case_sensitive_on) | |
2630 | return 0; | |
2631 | ||
2632 | /* Otherwise the strings were equal in case insensitive way, make | |
2633 | a more fine grained comparison in a case sensitive way. */ | |
2634 | ||
2635 | case_pass = case_sensitive_on; | |
2636 | string1 = saved_string1; | |
2637 | string2 = saved_string2; | |
0fe19209 | 2638 | } |
0fe19209 DC |
2639 | } |
2640 | ||
2de7ced7 DJ |
2641 | /* A simple comparison function with opposite semantics to strcmp. */ |
2642 | ||
2643 | int | |
2644 | streq (const char *lhs, const char *rhs) | |
2645 | { | |
2646 | return !strcmp (lhs, rhs); | |
2647 | } | |
c906108c | 2648 | \f |
c5aa993b | 2649 | |
c906108c | 2650 | /* |
c5aa993b JM |
2651 | ** subset_compare() |
2652 | ** Answer whether string_to_compare is a full or partial match to | |
2653 | ** template_string. The partial match must be in sequence starting | |
2654 | ** at index 0. | |
2655 | */ | |
c906108c | 2656 | int |
fba45db2 | 2657 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
2658 | { |
2659 | int match; | |
e0627e85 | 2660 | |
8731e58e AC |
2661 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
2662 | && strlen (string_to_compare) <= strlen (template_string)) | |
2663 | match = | |
61012eef | 2664 | (startswith (template_string, string_to_compare)); |
7a292a7a SS |
2665 | else |
2666 | match = 0; | |
2667 | return match; | |
2668 | } | |
c906108c | 2669 | |
75feb17d DJ |
2670 | static void |
2671 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
2672 | struct cmd_list_element *c, const char *value) | |
2673 | { | |
3e43a32a MS |
2674 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), |
2675 | value); | |
75feb17d | 2676 | } |
c906108c | 2677 | \f |
c5aa993b | 2678 | |
c906108c | 2679 | void |
fba45db2 | 2680 | initialize_utils (void) |
c906108c | 2681 | { |
35096d9d | 2682 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
77dec115 EZ |
2683 | Set number of characters where GDB should wrap lines of its output."), _("\ |
2684 | Show number of characters where GDB should wrap lines of its output."), _("\ | |
2685 | This affects where GDB wraps its output to fit the screen width.\n\ | |
f81d1120 | 2686 | Setting this to \"unlimited\" or zero prevents GDB from wrapping its output."), |
35096d9d | 2687 | set_width_command, |
920d2a44 | 2688 | show_chars_per_line, |
35096d9d AC |
2689 | &setlist, &showlist); |
2690 | ||
2691 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
77dec115 EZ |
2692 | Set number of lines in a page for GDB output pagination."), _("\ |
2693 | Show number of lines in a page for GDB output pagination."), _("\ | |
2694 | This affects the number of lines after which GDB will pause\n\ | |
2695 | its output and ask you whether to continue.\n\ | |
f81d1120 | 2696 | Setting this to \"unlimited\" or zero causes GDB never pause during output."), |
35096d9d | 2697 | set_height_command, |
920d2a44 | 2698 | show_lines_per_page, |
35096d9d | 2699 | &setlist, &showlist); |
c5aa993b | 2700 | |
5bf193a2 AC |
2701 | add_setshow_boolean_cmd ("pagination", class_support, |
2702 | &pagination_enabled, _("\ | |
77dec115 EZ |
2703 | Set state of GDB output pagination."), _("\ |
2704 | Show state of GDB output pagination."), _("\ | |
2705 | When pagination is ON, GDB pauses at end of each screenful of\n\ | |
2706 | its output and asks you whether to continue.\n\ | |
f81d1120 | 2707 | Turning pagination off is an alternative to \"set height unlimited\"."), |
5bf193a2 | 2708 | NULL, |
920d2a44 | 2709 | show_pagination_enabled, |
5bf193a2 | 2710 | &setlist, &showlist); |
4261bedc | 2711 | |
5bf193a2 AC |
2712 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, |
2713 | &sevenbit_strings, _("\ | |
2714 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
2715 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
2716 | NULL, | |
920d2a44 | 2717 | show_sevenbit_strings, |
5bf193a2 AC |
2718 | &setprintlist, &showprintlist); |
2719 | ||
75feb17d DJ |
2720 | add_setshow_boolean_cmd ("timestamp", class_maintenance, |
2721 | &debug_timestamp, _("\ | |
2722 | Set timestamping of debugging messages."), _("\ | |
2723 | Show timestamping of debugging messages."), _("\ | |
2724 | When set, debugging messages will be marked with seconds and microseconds."), | |
2725 | NULL, | |
2726 | show_debug_timestamp, | |
2727 | &setdebuglist, &showdebuglist); | |
c906108c SS |
2728 | } |
2729 | ||
66bf4b3a | 2730 | const char * |
5af949e3 | 2731 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
2732 | { |
2733 | /* Truncate address to the size of a target address, avoiding shifts | |
2734 | larger or equal than the width of a CORE_ADDR. The local | |
2735 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
581e13c1 | 2736 | when it won't occur. */ |
66bf4b3a AC |
2737 | /* NOTE: This assumes that the significant address information is |
2738 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2739 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2740 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2741 | ||
5af949e3 | 2742 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
2743 | |
2744 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2745 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2746 | return hex_string (addr); | |
2747 | } | |
2748 | ||
f1310107 TJB |
2749 | /* This function is described in "defs.h". */ |
2750 | ||
2751 | const char * | |
2752 | print_core_address (struct gdbarch *gdbarch, CORE_ADDR address) | |
2753 | { | |
2754 | int addr_bit = gdbarch_addr_bit (gdbarch); | |
2755 | ||
2756 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2757 | address &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2758 | ||
2759 | /* FIXME: cagney/2002-05-03: Need local_address_string() function | |
2760 | that returns the language localized string formatted to a width | |
2761 | based on gdbarch_addr_bit. */ | |
2762 | if (addr_bit <= 32) | |
2763 | return hex_string_custom (address, 8); | |
2764 | else | |
2765 | return hex_string_custom (address, 16); | |
2766 | } | |
2767 | ||
8e3b41a9 JK |
2768 | /* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */ |
2769 | ||
2770 | hashval_t | |
2771 | core_addr_hash (const void *ap) | |
2772 | { | |
2773 | const CORE_ADDR *addrp = ap; | |
2774 | ||
2775 | return *addrp; | |
2776 | } | |
2777 | ||
2778 | /* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */ | |
2779 | ||
2780 | int | |
2781 | core_addr_eq (const void *ap, const void *bp) | |
2782 | { | |
2783 | const CORE_ADDR *addr_ap = ap; | |
2784 | const CORE_ADDR *addr_bp = bp; | |
2785 | ||
2786 | return *addr_ap == *addr_bp; | |
2787 | } | |
2788 | ||
03dd37c3 AC |
2789 | /* Convert a string back into a CORE_ADDR. */ |
2790 | CORE_ADDR | |
2791 | string_to_core_addr (const char *my_string) | |
2792 | { | |
2793 | CORE_ADDR addr = 0; | |
9544c605 | 2794 | |
03dd37c3 AC |
2795 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
2796 | { | |
ced572fe | 2797 | /* Assume that it is in hex. */ |
03dd37c3 | 2798 | int i; |
5d502164 | 2799 | |
03dd37c3 AC |
2800 | for (i = 2; my_string[i] != '\0'; i++) |
2801 | { | |
2802 | if (isdigit (my_string[i])) | |
2803 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 2804 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
2805 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
2806 | else | |
63f06803 | 2807 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
2808 | } |
2809 | } | |
2810 | else | |
2811 | { | |
2812 | /* Assume that it is in decimal. */ | |
2813 | int i; | |
5d502164 | 2814 | |
03dd37c3 AC |
2815 | for (i = 0; my_string[i] != '\0'; i++) |
2816 | { | |
2817 | if (isdigit (my_string[i])) | |
2818 | addr = (my_string[i] - '0') + (addr * 10); | |
2819 | else | |
63f06803 | 2820 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
2821 | } |
2822 | } | |
9544c605 | 2823 | |
03dd37c3 AC |
2824 | return addr; |
2825 | } | |
58d370e0 TT |
2826 | |
2827 | char * | |
2828 | gdb_realpath (const char *filename) | |
2829 | { | |
0fa9473f JB |
2830 | /* On most hosts, we rely on canonicalize_file_name to compute |
2831 | the FILENAME's realpath. | |
2832 | ||
2833 | But the situation is slightly more complex on Windows, due to some | |
2834 | versions of GCC which were reported to generate paths where | |
2835 | backlashes (the directory separator) were doubled. For instance: | |
2836 | c:\\some\\double\\slashes\\dir | |
2837 | ... instead of ... | |
2838 | c:\some\double\slashes\dir | |
2839 | Those double-slashes were getting in the way when comparing paths, | |
2840 | for instance when trying to insert a breakpoint as follow: | |
2841 | (gdb) b c:/some/double/slashes/dir/foo.c:4 | |
2842 | No source file named c:/some/double/slashes/dir/foo.c:4. | |
2843 | (gdb) b c:\some\double\slashes\dir\foo.c:4 | |
2844 | No source file named c:\some\double\slashes\dir\foo.c:4. | |
2845 | To prevent this from happening, we need this function to always | |
2846 | strip those extra backslashes. While canonicalize_file_name does | |
2847 | perform this simplification, it only works when the path is valid. | |
2848 | Since the simplification would be useful even if the path is not | |
2849 | valid (one can always set a breakpoint on a file, even if the file | |
2850 | does not exist locally), we rely instead on GetFullPathName to | |
2851 | perform the canonicalization. */ | |
2852 | ||
9c5e4386 JB |
2853 | #if defined (_WIN32) |
2854 | { | |
2855 | char buf[MAX_PATH]; | |
2856 | DWORD len = GetFullPathName (filename, MAX_PATH, buf, NULL); | |
2857 | ||
0fa9473f JB |
2858 | /* The file system is case-insensitive but case-preserving. |
2859 | So it is important we do not lowercase the path. Otherwise, | |
2860 | we might not be able to display the original casing in a given | |
2861 | path. */ | |
9c5e4386 JB |
2862 | if (len > 0 && len < MAX_PATH) |
2863 | return xstrdup (buf); | |
2864 | } | |
abbffc89 YQ |
2865 | #else |
2866 | { | |
2867 | char *rp = canonicalize_file_name (filename); | |
2868 | ||
2869 | if (rp != NULL) | |
2870 | return rp; | |
2871 | } | |
9c5e4386 JB |
2872 | #endif |
2873 | ||
70d35819 AC |
2874 | /* This system is a lost cause, just dup the buffer. */ |
2875 | return xstrdup (filename); | |
58d370e0 | 2876 | } |
303c8ebd | 2877 | |
4856b6bc JK |
2878 | /* Return a copy of FILENAME, with its directory prefix canonicalized |
2879 | by gdb_realpath. */ | |
2880 | ||
2881 | char * | |
2882 | gdb_realpath_keepfile (const char *filename) | |
2883 | { | |
2884 | const char *base_name = lbasename (filename); | |
2885 | char *dir_name; | |
2886 | char *real_path; | |
2887 | char *result; | |
2888 | ||
2889 | /* Extract the basename of filename, and return immediately | |
2890 | a copy of filename if it does not contain any directory prefix. */ | |
2891 | if (base_name == filename) | |
2892 | return xstrdup (filename); | |
2893 | ||
2894 | dir_name = alloca ((size_t) (base_name - filename + 2)); | |
2895 | /* Allocate enough space to store the dir_name + plus one extra | |
2896 | character sometimes needed under Windows (see below), and | |
2897 | then the closing \000 character. */ | |
2898 | strncpy (dir_name, filename, base_name - filename); | |
2899 | dir_name[base_name - filename] = '\000'; | |
2900 | ||
2901 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
2902 | /* We need to be careful when filename is of the form 'd:foo', which | |
2903 | is equivalent of d:./foo, which is totally different from d:/foo. */ | |
2904 | if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':') | |
2905 | { | |
2906 | dir_name[2] = '.'; | |
2907 | dir_name[3] = '\000'; | |
2908 | } | |
2909 | #endif | |
2910 | ||
2911 | /* Canonicalize the directory prefix, and build the resulting | |
2912 | filename. If the dirname realpath already contains an ending | |
2913 | directory separator, avoid doubling it. */ | |
2914 | real_path = gdb_realpath (dir_name); | |
2915 | if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1])) | |
2916 | result = concat (real_path, base_name, (char *) NULL); | |
2917 | else | |
2918 | result = concat (real_path, SLASH_STRING, base_name, (char *) NULL); | |
2919 | ||
2920 | xfree (real_path); | |
2921 | return result; | |
2922 | } | |
2923 | ||
04affae3 JK |
2924 | /* Return PATH in absolute form, performing tilde-expansion if necessary. |
2925 | PATH cannot be NULL or the empty string. | |
2926 | This does not resolve symlinks however, use gdb_realpath for that. | |
2927 | Space for the result is allocated with malloc. | |
2928 | If the path is already absolute, it is strdup'd. | |
2929 | If there is a problem computing the absolute path, the path is returned | |
2930 | unchanged (still strdup'd). */ | |
2931 | ||
2932 | char * | |
2933 | gdb_abspath (const char *path) | |
2934 | { | |
2935 | gdb_assert (path != NULL && path[0] != '\0'); | |
2936 | ||
2937 | if (path[0] == '~') | |
2938 | return tilde_expand (path); | |
2939 | ||
2940 | if (IS_ABSOLUTE_PATH (path)) | |
2941 | return xstrdup (path); | |
2942 | ||
2943 | /* Beware the // my son, the Emacs barfs, the botch that catch... */ | |
2944 | return concat (current_directory, | |
2945 | IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1]) | |
2946 | ? "" : SLASH_STRING, | |
2947 | path, (char *) NULL); | |
2948 | } | |
2949 | ||
5b03f266 AC |
2950 | ULONGEST |
2951 | align_up (ULONGEST v, int n) | |
2952 | { | |
2953 | /* Check that N is really a power of two. */ | |
2954 | gdb_assert (n && (n & (n-1)) == 0); | |
2955 | return (v + n - 1) & -n; | |
2956 | } | |
2957 | ||
2958 | ULONGEST | |
2959 | align_down (ULONGEST v, int n) | |
2960 | { | |
2961 | /* Check that N is really a power of two. */ | |
2962 | gdb_assert (n && (n & (n-1)) == 0); | |
2963 | return (v & -n); | |
2964 | } | |
ae5a43e0 DJ |
2965 | |
2966 | /* Allocation function for the libiberty hash table which uses an | |
2967 | obstack. The obstack is passed as DATA. */ | |
2968 | ||
2969 | void * | |
2970 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
2971 | { | |
241fd515 | 2972 | size_t total = size * count; |
ae5a43e0 | 2973 | void *ptr = obstack_alloc ((struct obstack *) data, total); |
e0627e85 | 2974 | |
ae5a43e0 DJ |
2975 | memset (ptr, 0, total); |
2976 | return ptr; | |
2977 | } | |
2978 | ||
2979 | /* Trivial deallocation function for the libiberty splay tree and hash | |
2980 | table - don't deallocate anything. Rely on later deletion of the | |
2981 | obstack. DATA will be the obstack, although it is not needed | |
2982 | here. */ | |
2983 | ||
2984 | void | |
2985 | dummy_obstack_deallocate (void *object, void *data) | |
2986 | { | |
2987 | return; | |
2988 | } | |
253c8abb | 2989 | |
e1024ff1 DJ |
2990 | /* Simple, portable version of dirname that does not modify its |
2991 | argument. */ | |
2992 | ||
2993 | char * | |
2994 | ldirname (const char *filename) | |
2995 | { | |
2996 | const char *base = lbasename (filename); | |
2997 | char *dirname; | |
2998 | ||
2999 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
3000 | --base; | |
3001 | ||
3002 | if (base == filename) | |
3003 | return NULL; | |
3004 | ||
3005 | dirname = xmalloc (base - filename + 2); | |
3006 | memcpy (dirname, filename, base - filename); | |
3007 | ||
3008 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
3009 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
3010 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
3011 | && !IS_DIR_SEPARATOR (filename[0])) | |
3012 | dirname[base++ - filename] = '.'; | |
3013 | ||
3014 | dirname[base - filename] = '\0'; | |
3015 | return dirname; | |
3016 | } | |
d1a41061 PP |
3017 | |
3018 | /* Call libiberty's buildargv, and return the result. | |
3019 | If buildargv fails due to out-of-memory, call nomem. | |
3020 | Therefore, the returned value is guaranteed to be non-NULL, | |
3021 | unless the parameter itself is NULL. */ | |
3022 | ||
3023 | char ** | |
3024 | gdb_buildargv (const char *s) | |
3025 | { | |
3026 | char **argv = buildargv (s); | |
e0627e85 | 3027 | |
d1a41061 | 3028 | if (s != NULL && argv == NULL) |
d26e3629 | 3029 | malloc_failure (0); |
d1a41061 PP |
3030 | return argv; |
3031 | } | |
3c16cced | 3032 | |
dc146f7c VP |
3033 | int |
3034 | compare_positive_ints (const void *ap, const void *bp) | |
3035 | { | |
3036 | /* Because we know we're comparing two ints which are positive, | |
3037 | there's no danger of overflow here. */ | |
3038 | return * (int *) ap - * (int *) bp; | |
3039 | } | |
3040 | ||
f8eba3c6 TT |
3041 | /* String compare function for qsort. */ |
3042 | ||
3043 | int | |
3044 | compare_strings (const void *arg1, const void *arg2) | |
3045 | { | |
3046 | const char **s1 = (const char **) arg1; | |
3047 | const char **s2 = (const char **) arg2; | |
3048 | ||
3049 | return strcmp (*s1, *s2); | |
3050 | } | |
3051 | ||
d18b8b7a | 3052 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3e43a32a MS |
3053 | #define AMBIGUOUS_MESS2 \ |
3054 | ".\nUse \"set gnutarget format-name\" to specify the format." | |
d18b8b7a HZ |
3055 | |
3056 | const char * | |
3057 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) | |
3058 | { | |
3059 | char *ret, *retp; | |
3060 | int ret_len; | |
3061 | char **p; | |
3062 | ||
3063 | /* Check if errmsg just need simple return. */ | |
3064 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
3065 | return bfd_errmsg (error_tag); | |
3066 | ||
3067 | ret_len = strlen (bfd_errmsg (error_tag)) + strlen (AMBIGUOUS_MESS1) | |
3068 | + strlen (AMBIGUOUS_MESS2); | |
3069 | for (p = matching; *p; p++) | |
3070 | ret_len += strlen (*p) + 1; | |
3071 | ret = xmalloc (ret_len + 1); | |
3072 | retp = ret; | |
3073 | make_cleanup (xfree, ret); | |
3074 | ||
3075 | strcpy (retp, bfd_errmsg (error_tag)); | |
3076 | retp += strlen (retp); | |
3077 | ||
3078 | strcpy (retp, AMBIGUOUS_MESS1); | |
3079 | retp += strlen (retp); | |
3080 | ||
3081 | for (p = matching; *p; p++) | |
3082 | { | |
3083 | sprintf (retp, " %s", *p); | |
3084 | retp += strlen (retp); | |
3085 | } | |
3086 | xfree (matching); | |
3087 | ||
3088 | strcpy (retp, AMBIGUOUS_MESS2); | |
3089 | ||
3090 | return ret; | |
3091 | } | |
3092 | ||
74164c56 JK |
3093 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
3094 | ||
3095 | int | |
c0939df1 | 3096 | parse_pid_to_attach (const char *args) |
74164c56 JK |
3097 | { |
3098 | unsigned long pid; | |
3099 | char *dummy; | |
3100 | ||
3101 | if (!args) | |
3102 | error_no_arg (_("process-id to attach")); | |
3103 | ||
c0939df1 | 3104 | dummy = (char *) args; |
74164c56 JK |
3105 | pid = strtoul (args, &dummy, 0); |
3106 | /* Some targets don't set errno on errors, grrr! */ | |
3107 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
3108 | error (_("Illegal process-id: %s."), args); | |
3109 | ||
3110 | return pid; | |
3111 | } | |
3112 | ||
353d1d73 JK |
3113 | /* Helper for make_bpstat_clear_actions_cleanup. */ |
3114 | ||
3115 | static void | |
3116 | do_bpstat_clear_actions_cleanup (void *unused) | |
3117 | { | |
3118 | bpstat_clear_actions (); | |
3119 | } | |
3120 | ||
3121 | /* Call bpstat_clear_actions for the case an exception is throw. You should | |
3122 | discard_cleanups if no exception is caught. */ | |
3123 | ||
3124 | struct cleanup * | |
3125 | make_bpstat_clear_actions_cleanup (void) | |
3126 | { | |
3127 | return make_cleanup (do_bpstat_clear_actions_cleanup, NULL); | |
3128 | } | |
3129 | ||
df15bd07 JK |
3130 | /* Check for GCC >= 4.x according to the symtab->producer string. Return minor |
3131 | version (x) of 4.x in such case. If it is not GCC or it is GCC older than | |
3132 | 4.x return -1. If it is GCC 5.x or higher return INT_MAX. */ | |
3133 | ||
3134 | int | |
3135 | producer_is_gcc_ge_4 (const char *producer) | |
3136 | { | |
df15bd07 | 3137 | int major, minor; |
b1ffba5a MW |
3138 | |
3139 | if (! producer_is_gcc (producer, &major, &minor)) | |
3140 | return -1; | |
df15bd07 JK |
3141 | if (major < 4) |
3142 | return -1; | |
3143 | if (major > 4) | |
3144 | return INT_MAX; | |
3145 | return minor; | |
3146 | } | |
3147 | ||
cc7039d3 JB |
3148 | /* Returns nonzero if the given PRODUCER string is GCC and sets the MAJOR |
3149 | and MINOR versions when not NULL. Returns zero if the given PRODUCER | |
b1ffba5a MW |
3150 | is NULL or it isn't GCC. */ |
3151 | ||
cc7039d3 | 3152 | int |
b1ffba5a | 3153 | producer_is_gcc (const char *producer, int *major, int *minor) |
38360086 MW |
3154 | { |
3155 | const char *cs; | |
38360086 | 3156 | |
61012eef | 3157 | if (producer != NULL && startswith (producer, "GNU ")) |
38360086 | 3158 | { |
b1ffba5a MW |
3159 | int maj, min; |
3160 | ||
3161 | if (major == NULL) | |
3162 | major = &maj; | |
3163 | if (minor == NULL) | |
3164 | minor = &min; | |
3165 | ||
38360086 MW |
3166 | /* Skip any identifier after "GNU " - such as "C11" "C++" or "Java". |
3167 | A full producer string might look like: | |
3168 | "GNU C 4.7.2" | |
3169 | "GNU Fortran 4.8.2 20140120 (Red Hat 4.8.2-16) -mtune=generic ..." | |
3170 | "GNU C++14 5.0.0 20150123 (experimental)" | |
3171 | */ | |
3172 | cs = &producer[strlen ("GNU ")]; | |
3173 | while (*cs && !isspace (*cs)) | |
3174 | cs++; | |
3175 | if (*cs && isspace (*cs)) | |
3176 | cs++; | |
b1ffba5a | 3177 | if (sscanf (cs, "%d.%d", major, minor) == 2) |
cc7039d3 | 3178 | return 1; |
38360086 MW |
3179 | } |
3180 | ||
3181 | /* Not recognized as GCC. */ | |
cc7039d3 | 3182 | return 0; |
38360086 MW |
3183 | } |
3184 | ||
e4ab2fad JK |
3185 | /* Helper for make_cleanup_free_char_ptr_vec. */ |
3186 | ||
3187 | static void | |
3188 | do_free_char_ptr_vec (void *arg) | |
3189 | { | |
3190 | VEC (char_ptr) *char_ptr_vec = arg; | |
3191 | ||
3192 | free_char_ptr_vec (char_ptr_vec); | |
3193 | } | |
3194 | ||
3195 | /* Make cleanup handler calling xfree for each element of CHAR_PTR_VEC and | |
3196 | final VEC_free for CHAR_PTR_VEC itself. | |
3197 | ||
3198 | You must not modify CHAR_PTR_VEC after this cleanup registration as the | |
3199 | CHAR_PTR_VEC base address may change on its updates. Contrary to VEC_free | |
3200 | this function does not (cannot) clear the pointer. */ | |
3201 | ||
3202 | struct cleanup * | |
3203 | make_cleanup_free_char_ptr_vec (VEC (char_ptr) *char_ptr_vec) | |
3204 | { | |
3205 | return make_cleanup (do_free_char_ptr_vec, char_ptr_vec); | |
3206 | } | |
3207 | ||
6dea1fbd JK |
3208 | /* Substitute all occurences of string FROM by string TO in *STRINGP. *STRINGP |
3209 | must come from xrealloc-compatible allocator and it may be updated. FROM | |
1564a261 JK |
3210 | needs to be delimited by IS_DIR_SEPARATOR or DIRNAME_SEPARATOR (or be |
3211 | located at the start or end of *STRINGP. */ | |
6dea1fbd JK |
3212 | |
3213 | void | |
3214 | substitute_path_component (char **stringp, const char *from, const char *to) | |
3215 | { | |
3216 | char *string = *stringp, *s; | |
3217 | const size_t from_len = strlen (from); | |
3218 | const size_t to_len = strlen (to); | |
3219 | ||
3220 | for (s = string;;) | |
3221 | { | |
3222 | s = strstr (s, from); | |
3223 | if (s == NULL) | |
3224 | break; | |
3225 | ||
1564a261 JK |
3226 | if ((s == string || IS_DIR_SEPARATOR (s[-1]) |
3227 | || s[-1] == DIRNAME_SEPARATOR) | |
3228 | && (s[from_len] == '\0' || IS_DIR_SEPARATOR (s[from_len]) | |
3229 | || s[from_len] == DIRNAME_SEPARATOR)) | |
6dea1fbd JK |
3230 | { |
3231 | char *string_new; | |
3232 | ||
3233 | string_new = xrealloc (string, (strlen (string) + to_len + 1)); | |
3234 | ||
3235 | /* Relocate the current S pointer. */ | |
3236 | s = s - string + string_new; | |
3237 | string = string_new; | |
3238 | ||
3239 | /* Replace from by to. */ | |
3240 | memmove (&s[to_len], &s[from_len], strlen (&s[from_len]) + 1); | |
3241 | memcpy (s, to, to_len); | |
3242 | ||
3243 | s += to_len; | |
3244 | } | |
3245 | else | |
3246 | s++; | |
3247 | } | |
3248 | ||
3249 | *stringp = string; | |
3250 | } | |
3251 | ||
0b6cb71e DE |
3252 | #ifdef HAVE_WAITPID |
3253 | ||
3254 | #ifdef SIGALRM | |
3255 | ||
3256 | /* SIGALRM handler for waitpid_with_timeout. */ | |
3257 | ||
3258 | static void | |
3259 | sigalrm_handler (int signo) | |
3260 | { | |
3261 | /* Nothing to do. */ | |
3262 | } | |
3263 | ||
3264 | #endif | |
3265 | ||
3266 | /* Wrapper to wait for child PID to die with TIMEOUT. | |
3267 | TIMEOUT is the time to stop waiting in seconds. | |
3268 | If TIMEOUT is zero, pass WNOHANG to waitpid. | |
3269 | Returns PID if it was successfully waited for, otherwise -1. | |
3270 | ||
3271 | Timeouts are currently implemented with alarm and SIGALRM. | |
3272 | If the host does not support them, this waits "forever". | |
3273 | It would be odd though for a host to have waitpid and not SIGALRM. */ | |
3274 | ||
3275 | pid_t | |
3276 | wait_to_die_with_timeout (pid_t pid, int *status, int timeout) | |
3277 | { | |
3278 | pid_t waitpid_result; | |
3279 | ||
3280 | gdb_assert (pid > 0); | |
3281 | gdb_assert (timeout >= 0); | |
3282 | ||
3283 | if (timeout > 0) | |
3284 | { | |
3285 | #ifdef SIGALRM | |
3286 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3287 | struct sigaction sa, old_sa; | |
3288 | ||
3289 | sa.sa_handler = sigalrm_handler; | |
3290 | sigemptyset (&sa.sa_mask); | |
3291 | sa.sa_flags = 0; | |
3292 | sigaction (SIGALRM, &sa, &old_sa); | |
3293 | #else | |
3294 | void (*ofunc) (); | |
3295 | ||
3296 | ofunc = (void (*)()) signal (SIGALRM, sigalrm_handler); | |
3297 | #endif | |
3298 | ||
3299 | alarm (timeout); | |
3300 | #endif | |
3301 | ||
3302 | waitpid_result = waitpid (pid, status, 0); | |
3303 | ||
3304 | #ifdef SIGALRM | |
3305 | alarm (0); | |
3306 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3307 | sigaction (SIGALRM, &old_sa, NULL); | |
3308 | #else | |
3309 | signal (SIGALRM, ofunc); | |
3310 | #endif | |
3311 | #endif | |
3312 | } | |
3313 | else | |
3314 | waitpid_result = waitpid (pid, status, WNOHANG); | |
3315 | ||
3316 | if (waitpid_result == pid) | |
3317 | return pid; | |
3318 | else | |
3319 | return -1; | |
3320 | } | |
3321 | ||
3322 | #endif /* HAVE_WAITPID */ | |
3323 | ||
202cbf1c JK |
3324 | /* Provide fnmatch compatible function for FNM_FILE_NAME matching of host files. |
3325 | Both FNM_FILE_NAME and FNM_NOESCAPE must be set in FLAGS. | |
3326 | ||
3327 | It handles correctly HAVE_DOS_BASED_FILE_SYSTEM and | |
3328 | HAVE_CASE_INSENSITIVE_FILE_SYSTEM. */ | |
3329 | ||
3330 | int | |
3331 | gdb_filename_fnmatch (const char *pattern, const char *string, int flags) | |
3332 | { | |
3333 | gdb_assert ((flags & FNM_FILE_NAME) != 0); | |
3334 | ||
3335 | /* It is unclear how '\' escaping vs. directory separator should coexist. */ | |
3336 | gdb_assert ((flags & FNM_NOESCAPE) != 0); | |
3337 | ||
3338 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3339 | { | |
3340 | char *pattern_slash, *string_slash; | |
3341 | ||
3342 | /* Replace '\' by '/' in both strings. */ | |
3343 | ||
3344 | pattern_slash = alloca (strlen (pattern) + 1); | |
3345 | strcpy (pattern_slash, pattern); | |
3346 | pattern = pattern_slash; | |
3347 | for (; *pattern_slash != 0; pattern_slash++) | |
3348 | if (IS_DIR_SEPARATOR (*pattern_slash)) | |
3349 | *pattern_slash = '/'; | |
3350 | ||
3351 | string_slash = alloca (strlen (string) + 1); | |
3352 | strcpy (string_slash, string); | |
3353 | string = string_slash; | |
3354 | for (; *string_slash != 0; string_slash++) | |
3355 | if (IS_DIR_SEPARATOR (*string_slash)) | |
3356 | *string_slash = '/'; | |
3357 | } | |
3358 | #endif /* HAVE_DOS_BASED_FILE_SYSTEM */ | |
3359 | ||
3360 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
3361 | flags |= FNM_CASEFOLD; | |
3362 | #endif /* HAVE_CASE_INSENSITIVE_FILE_SYSTEM */ | |
3363 | ||
3364 | return fnmatch (pattern, string, flags); | |
3365 | } | |
3366 | ||
2c0b251b PA |
3367 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
3368 | extern initialize_file_ftype _initialize_utils; | |
3369 | ||
3c16cced PA |
3370 | void |
3371 | _initialize_utils (void) | |
3372 | { | |
3373 | add_internal_problem_command (&internal_error_problem); | |
3374 | add_internal_problem_command (&internal_warning_problem); | |
57fcfb1b | 3375 | add_internal_problem_command (&demangler_warning_problem); |
3c16cced | 3376 | } |