Commit | Line | Data |
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c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
1bac305b | 2 | |
ecd75fc8 | 3 | Copyright (C) 1986-2014 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c | 19 | |
4e8f7a8b | 20 | #include "defs.h" |
5a56e9c5 | 21 | #include "dyn-string.h" |
4e8f7a8b DJ |
22 | #include "gdb_assert.h" |
23 | #include <ctype.h> | |
0e9f083f | 24 | #include <string.h> |
0b6cb71e | 25 | #include "gdb_wait.h" |
4e8f7a8b | 26 | #include "event-top.h" |
60250e8b | 27 | #include "exceptions.h" |
95e54da7 | 28 | #include "gdbthread.h" |
202cbf1c | 29 | #include "fnmatch.h" |
cbb099e8 | 30 | #include "gdb_bfd.h" |
7991dee7 JK |
31 | #ifdef HAVE_SYS_RESOURCE_H |
32 | #include <sys/resource.h> | |
33 | #endif /* HAVE_SYS_RESOURCE_H */ | |
4e8f7a8b | 34 | |
6a83354a AC |
35 | #ifdef TUI |
36 | #include "tui/tui.h" /* For tui_get_command_dimension. */ | |
37 | #endif | |
38 | ||
9d271fd8 AC |
39 | #ifdef __GO32__ |
40 | #include <pc.h> | |
41 | #endif | |
42 | ||
042be3a9 | 43 | #include <signal.h> |
0a1c4d10 | 44 | #include "timeval-utils.h" |
c906108c SS |
45 | #include "gdbcmd.h" |
46 | #include "serial.h" | |
47 | #include "bfd.h" | |
48 | #include "target.h" | |
50f182aa | 49 | #include "gdb-demangle.h" |
c906108c SS |
50 | #include "expression.h" |
51 | #include "language.h" | |
234b45d4 | 52 | #include "charset.h" |
c906108c | 53 | #include "annotate.h" |
303c8ebd | 54 | #include "filenames.h" |
7b90c3f9 | 55 | #include "symfile.h" |
ae5a43e0 | 56 | #include "gdb_obstack.h" |
9544c605 | 57 | #include "gdbcore.h" |
698ba934 | 58 | #include "top.h" |
7c953934 | 59 | #include "main.h" |
cb08cc53 | 60 | #include "solist.h" |
c906108c | 61 | |
8731e58e | 62 | #include "inferior.h" /* for signed_pointer_to_address */ |
ac2e2ef7 | 63 | |
3b78cdbb | 64 | #include "gdb_curses.h" |
020cc13c | 65 | |
dbda9972 | 66 | #include "readline/readline.h" |
c906108c | 67 | |
75feb17d DJ |
68 | #include <sys/time.h> |
69 | #include <time.h> | |
70 | ||
8626589c | 71 | #include "gdb_usleep.h" |
390a8aca | 72 | #include "interps.h" |
dc92e161 | 73 | #include "gdb_regex.h" |
8626589c | 74 | |
a3828db0 | 75 | #if !HAVE_DECL_MALLOC |
5ac79d78 | 76 | extern PTR malloc (); /* ARI: PTR */ |
3c37485b | 77 | #endif |
a3828db0 | 78 | #if !HAVE_DECL_REALLOC |
5ac79d78 | 79 | extern PTR realloc (); /* ARI: PTR */ |
0e52036f | 80 | #endif |
a3828db0 | 81 | #if !HAVE_DECL_FREE |
81b8eb80 AC |
82 | extern void free (); |
83 | #endif | |
81b8eb80 | 84 | |
9a4105ab | 85 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
86 | |
87 | /* Prototypes for local functions */ | |
88 | ||
d9fcf2fb | 89 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
a0b31db1 | 90 | va_list, int) ATTRIBUTE_PRINTF (2, 0); |
c906108c | 91 | |
d9fcf2fb | 92 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 93 | |
a14ed312 | 94 | static void prompt_for_continue (void); |
c906108c | 95 | |
eb0d3137 | 96 | static void set_screen_size (void); |
a14ed312 | 97 | static void set_width (void); |
c906108c | 98 | |
260c0b2a DE |
99 | /* Time spent in prompt_for_continue in the currently executing command |
100 | waiting for user to respond. | |
101 | Initialized in make_command_stats_cleanup. | |
102 | Modified in prompt_for_continue and defaulted_query. | |
103 | Used in report_command_stats. */ | |
104 | ||
105 | static struct timeval prompt_for_continue_wait_time; | |
106 | ||
75feb17d DJ |
107 | /* A flag indicating whether to timestamp debugging messages. */ |
108 | ||
109 | static int debug_timestamp = 0; | |
110 | ||
581e13c1 | 111 | /* Nonzero if we have job control. */ |
c906108c SS |
112 | |
113 | int job_control; | |
114 | ||
c906108c SS |
115 | /* Nonzero means quit immediately if Control-C is typed now, rather |
116 | than waiting until QUIT is executed. Be careful in setting this; | |
117 | code which executes with immediate_quit set has to be very careful | |
118 | about being able to deal with being interrupted at any time. It is | |
119 | almost always better to use QUIT; the only exception I can think of | |
120 | is being able to quit out of a system call (using EINTR loses if | |
121 | the SIGINT happens between the previous QUIT and the system call). | |
122 | To immediately quit in the case in which a SIGINT happens between | |
123 | the previous QUIT and setting immediate_quit (desirable anytime we | |
124 | expect to block), call QUIT after setting immediate_quit. */ | |
125 | ||
126 | int immediate_quit; | |
127 | ||
c906108c SS |
128 | /* Nonzero means that strings with character values >0x7F should be printed |
129 | as octal escapes. Zero means just print the value (e.g. it's an | |
130 | international character, and the terminal or window can cope.) */ | |
131 | ||
132 | int sevenbit_strings = 0; | |
920d2a44 AC |
133 | static void |
134 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
135 | struct cmd_list_element *c, const char *value) | |
136 | { | |
3e43a32a MS |
137 | fprintf_filtered (file, _("Printing of 8-bit characters " |
138 | "in strings as \\nnn is %s.\n"), | |
920d2a44 AC |
139 | value); |
140 | } | |
c906108c | 141 | |
c906108c SS |
142 | /* String to be printed before warning messages, if any. */ |
143 | ||
144 | char *warning_pre_print = "\nwarning: "; | |
145 | ||
146 | int pagination_enabled = 1; | |
920d2a44 AC |
147 | static void |
148 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
149 | struct cmd_list_element *c, const char *value) | |
150 | { | |
151 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
152 | } | |
153 | ||
c906108c | 154 | \f |
c27f5738 | 155 | /* Cleanup utilities. |
c5aa993b | 156 | |
c27f5738 DE |
157 | These are not defined in cleanups.c (nor declared in cleanups.h) |
158 | because while they use the "cleanup API" they are not part of the | |
159 | "cleanup API". */ | |
7a292a7a | 160 | |
7a292a7a | 161 | static void |
fba45db2 | 162 | do_freeargv (void *arg) |
7a292a7a | 163 | { |
c5aa993b | 164 | freeargv ((char **) arg); |
7a292a7a SS |
165 | } |
166 | ||
167 | struct cleanup * | |
fba45db2 | 168 | make_cleanup_freeargv (char **arg) |
7a292a7a | 169 | { |
e0088cfd | 170 | return make_cleanup (do_freeargv, arg); |
7a292a7a SS |
171 | } |
172 | ||
5a56e9c5 DE |
173 | static void |
174 | do_dyn_string_delete (void *arg) | |
175 | { | |
176 | dyn_string_delete ((dyn_string_t) arg); | |
177 | } | |
178 | ||
179 | struct cleanup * | |
180 | make_cleanup_dyn_string_delete (dyn_string_t arg) | |
181 | { | |
e0088cfd | 182 | return make_cleanup (do_dyn_string_delete, arg); |
5a56e9c5 DE |
183 | } |
184 | ||
5c65bbb6 AC |
185 | static void |
186 | do_bfd_close_cleanup (void *arg) | |
187 | { | |
cbb099e8 | 188 | gdb_bfd_unref (arg); |
5c65bbb6 AC |
189 | } |
190 | ||
191 | struct cleanup * | |
f9a062ff | 192 | make_cleanup_bfd_unref (bfd *abfd) |
5c65bbb6 AC |
193 | { |
194 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
195 | } | |
196 | ||
f5ff8c83 AC |
197 | static void |
198 | do_close_cleanup (void *arg) | |
199 | { | |
f042532c | 200 | int *fd = arg; |
e0627e85 | 201 | |
f042532c | 202 | close (*fd); |
f5ff8c83 AC |
203 | } |
204 | ||
205 | struct cleanup * | |
206 | make_cleanup_close (int fd) | |
207 | { | |
f042532c | 208 | int *saved_fd = xmalloc (sizeof (fd)); |
e0627e85 | 209 | |
f042532c | 210 | *saved_fd = fd; |
a05016c0 | 211 | return make_cleanup_dtor (do_close_cleanup, saved_fd, xfree); |
f5ff8c83 AC |
212 | } |
213 | ||
7c8a8b04 TT |
214 | /* Helper function which does the work for make_cleanup_fclose. */ |
215 | ||
216 | static void | |
217 | do_fclose_cleanup (void *arg) | |
218 | { | |
c02866a0 | 219 | FILE *file = arg; |
e0627e85 | 220 | |
c02866a0 | 221 | fclose (file); |
7c8a8b04 TT |
222 | } |
223 | ||
224 | /* Return a new cleanup that closes FILE. */ | |
225 | ||
226 | struct cleanup * | |
227 | make_cleanup_fclose (FILE *file) | |
228 | { | |
229 | return make_cleanup (do_fclose_cleanup, file); | |
230 | } | |
231 | ||
16ad9370 TT |
232 | /* Helper function which does the work for make_cleanup_obstack_free. */ |
233 | ||
234 | static void | |
235 | do_obstack_free (void *arg) | |
236 | { | |
237 | struct obstack *ob = arg; | |
e0627e85 | 238 | |
16ad9370 TT |
239 | obstack_free (ob, NULL); |
240 | } | |
241 | ||
242 | /* Return a new cleanup that frees OBSTACK. */ | |
243 | ||
244 | struct cleanup * | |
245 | make_cleanup_obstack_free (struct obstack *obstack) | |
246 | { | |
247 | return make_cleanup (do_obstack_free, obstack); | |
248 | } | |
249 | ||
11cf8741 | 250 | static void |
d9fcf2fb | 251 | do_ui_file_delete (void *arg) |
11cf8741 | 252 | { |
d9fcf2fb | 253 | ui_file_delete (arg); |
11cf8741 JM |
254 | } |
255 | ||
256 | struct cleanup * | |
d9fcf2fb | 257 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 258 | { |
e0088cfd | 259 | return make_cleanup (do_ui_file_delete, arg); |
11cf8741 JM |
260 | } |
261 | ||
8d4d924b JK |
262 | /* Helper function for make_cleanup_ui_out_redirect_pop. */ |
263 | ||
264 | static void | |
265 | do_ui_out_redirect_pop (void *arg) | |
266 | { | |
267 | struct ui_out *uiout = arg; | |
268 | ||
269 | if (ui_out_redirect (uiout, NULL) < 0) | |
270 | warning (_("Cannot restore redirection of the current output protocol")); | |
271 | } | |
272 | ||
273 | /* Return a new cleanup that pops the last redirection by ui_out_redirect | |
274 | with NULL parameter. */ | |
275 | ||
276 | struct cleanup * | |
277 | make_cleanup_ui_out_redirect_pop (struct ui_out *uiout) | |
278 | { | |
e0088cfd | 279 | return make_cleanup (do_ui_out_redirect_pop, uiout); |
8d4d924b JK |
280 | } |
281 | ||
7b90c3f9 JB |
282 | static void |
283 | do_free_section_addr_info (void *arg) | |
284 | { | |
285 | free_section_addr_info (arg); | |
286 | } | |
287 | ||
288 | struct cleanup * | |
289 | make_cleanup_free_section_addr_info (struct section_addr_info *addrs) | |
290 | { | |
e0088cfd | 291 | return make_cleanup (do_free_section_addr_info, addrs); |
7b90c3f9 JB |
292 | } |
293 | ||
0b080f59 VP |
294 | struct restore_integer_closure |
295 | { | |
296 | int *variable; | |
297 | int value; | |
298 | }; | |
299 | ||
300 | static void | |
301 | restore_integer (void *p) | |
302 | { | |
303 | struct restore_integer_closure *closure = p; | |
e0627e85 | 304 | |
0b080f59 VP |
305 | *(closure->variable) = closure->value; |
306 | } | |
7b90c3f9 | 307 | |
3e43a32a MS |
308 | /* Remember the current value of *VARIABLE and make it restored when |
309 | the cleanup is run. */ | |
5da1313b | 310 | |
c906108c | 311 | struct cleanup * |
0b080f59 VP |
312 | make_cleanup_restore_integer (int *variable) |
313 | { | |
314 | struct restore_integer_closure *c = | |
315 | xmalloc (sizeof (struct restore_integer_closure)); | |
e0627e85 | 316 | |
0b080f59 VP |
317 | c->variable = variable; |
318 | c->value = *variable; | |
319 | ||
e0088cfd | 320 | return make_cleanup_dtor (restore_integer, (void *) c, xfree); |
0b080f59 VP |
321 | } |
322 | ||
3e43a32a MS |
323 | /* Remember the current value of *VARIABLE and make it restored when |
324 | the cleanup is run. */ | |
5da1313b JK |
325 | |
326 | struct cleanup * | |
327 | make_cleanup_restore_uinteger (unsigned int *variable) | |
328 | { | |
329 | return make_cleanup_restore_integer ((int *) variable); | |
330 | } | |
331 | ||
c0edd9ed JK |
332 | /* Helper for make_cleanup_unpush_target. */ |
333 | ||
334 | static void | |
335 | do_unpush_target (void *arg) | |
336 | { | |
337 | struct target_ops *ops = arg; | |
338 | ||
339 | unpush_target (ops); | |
340 | } | |
341 | ||
342 | /* Return a new cleanup that unpushes OPS. */ | |
343 | ||
344 | struct cleanup * | |
345 | make_cleanup_unpush_target (struct target_ops *ops) | |
346 | { | |
e0088cfd | 347 | return make_cleanup (do_unpush_target, ops); |
c0edd9ed JK |
348 | } |
349 | ||
8e3b41a9 JK |
350 | /* Helper for make_cleanup_htab_delete compile time checking the types. */ |
351 | ||
352 | static void | |
353 | do_htab_delete_cleanup (void *htab_voidp) | |
354 | { | |
355 | htab_t htab = htab_voidp; | |
356 | ||
357 | htab_delete (htab); | |
358 | } | |
359 | ||
360 | /* Return a new cleanup that deletes HTAB. */ | |
361 | ||
362 | struct cleanup * | |
363 | make_cleanup_htab_delete (htab_t htab) | |
364 | { | |
365 | return make_cleanup (do_htab_delete_cleanup, htab); | |
366 | } | |
367 | ||
5da1313b JK |
368 | struct restore_ui_file_closure |
369 | { | |
370 | struct ui_file **variable; | |
371 | struct ui_file *value; | |
372 | }; | |
373 | ||
374 | static void | |
375 | do_restore_ui_file (void *p) | |
376 | { | |
377 | struct restore_ui_file_closure *closure = p; | |
378 | ||
379 | *(closure->variable) = closure->value; | |
380 | } | |
381 | ||
382 | /* Remember the current value of *VARIABLE and make it restored when | |
383 | the cleanup is run. */ | |
384 | ||
385 | struct cleanup * | |
386 | make_cleanup_restore_ui_file (struct ui_file **variable) | |
387 | { | |
388 | struct restore_ui_file_closure *c = XNEW (struct restore_ui_file_closure); | |
389 | ||
390 | c->variable = variable; | |
391 | c->value = *variable; | |
392 | ||
393 | return make_cleanup_dtor (do_restore_ui_file, (void *) c, xfree); | |
394 | } | |
395 | ||
028d0ed5 TJB |
396 | /* Helper for make_cleanup_value_free_to_mark. */ |
397 | ||
398 | static void | |
399 | do_value_free_to_mark (void *value) | |
400 | { | |
401 | value_free_to_mark ((struct value *) value); | |
402 | } | |
403 | ||
404 | /* Free all values allocated since MARK was obtained by value_mark | |
405 | (except for those released) when the cleanup is run. */ | |
406 | ||
407 | struct cleanup * | |
408 | make_cleanup_value_free_to_mark (struct value *mark) | |
409 | { | |
e0088cfd | 410 | return make_cleanup (do_value_free_to_mark, mark); |
028d0ed5 TJB |
411 | } |
412 | ||
72fc29ff TT |
413 | /* Helper for make_cleanup_value_free. */ |
414 | ||
415 | static void | |
416 | do_value_free (void *value) | |
417 | { | |
418 | value_free (value); | |
419 | } | |
420 | ||
421 | /* Free VALUE. */ | |
422 | ||
423 | struct cleanup * | |
424 | make_cleanup_value_free (struct value *value) | |
425 | { | |
e0088cfd | 426 | return make_cleanup (do_value_free, value); |
72fc29ff TT |
427 | } |
428 | ||
cb08cc53 JK |
429 | /* Helper for make_cleanup_free_so. */ |
430 | ||
431 | static void | |
432 | do_free_so (void *arg) | |
433 | { | |
434 | struct so_list *so = arg; | |
435 | ||
436 | free_so (so); | |
437 | } | |
438 | ||
439 | /* Make cleanup handler calling free_so for SO. */ | |
440 | ||
441 | struct cleanup * | |
442 | make_cleanup_free_so (struct so_list *so) | |
443 | { | |
e0088cfd | 444 | return make_cleanup (do_free_so, so); |
cb08cc53 JK |
445 | } |
446 | ||
5b12a61c JK |
447 | /* Helper for make_cleanup_restore_current_language. */ |
448 | ||
449 | static void | |
450 | do_restore_current_language (void *p) | |
451 | { | |
452 | enum language saved_lang = (uintptr_t) p; | |
453 | ||
454 | set_language (saved_lang); | |
455 | } | |
456 | ||
457 | /* Remember the current value of CURRENT_LANGUAGE and make it restored when | |
458 | the cleanup is run. */ | |
459 | ||
460 | struct cleanup * | |
461 | make_cleanup_restore_current_language (void) | |
462 | { | |
463 | enum language saved_lang = current_language->la_language; | |
464 | ||
465 | return make_cleanup (do_restore_current_language, | |
466 | (void *) (uintptr_t) saved_lang); | |
467 | } | |
468 | ||
410a0ff2 SDJ |
469 | /* Helper function for make_cleanup_clear_parser_state. */ |
470 | ||
471 | static void | |
472 | do_clear_parser_state (void *ptr) | |
473 | { | |
474 | struct parser_state **p = (struct parser_state **) ptr; | |
475 | ||
476 | *p = NULL; | |
477 | } | |
478 | ||
479 | /* Clean (i.e., set to NULL) the parser state variable P. */ | |
480 | ||
481 | struct cleanup * | |
482 | make_cleanup_clear_parser_state (struct parser_state **p) | |
483 | { | |
484 | return make_cleanup (do_clear_parser_state, (void *) p); | |
485 | } | |
486 | ||
c906108c SS |
487 | /* This function is useful for cleanups. |
488 | Do | |
489 | ||
c5aa993b JM |
490 | foo = xmalloc (...); |
491 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
492 | |
493 | to arrange to free the object thus allocated. */ | |
494 | ||
495 | void | |
2f9429ae | 496 | free_current_contents (void *ptr) |
c906108c | 497 | { |
2f9429ae | 498 | void **location = ptr; |
e0627e85 | 499 | |
e2f9c474 | 500 | if (location == NULL) |
8e65ff28 | 501 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 502 | _("free_current_contents: NULL pointer")); |
2f9429ae | 503 | if (*location != NULL) |
e2f9c474 | 504 | { |
b8c9b27d | 505 | xfree (*location); |
e2f9c474 AC |
506 | *location = NULL; |
507 | } | |
c906108c | 508 | } |
c906108c | 509 | \f |
c5aa993b | 510 | |
8731e58e | 511 | |
f5a96129 AC |
512 | /* Print a warning message. The first argument STRING is the warning |
513 | message, used as an fprintf format string, the second is the | |
514 | va_list of arguments for that string. A warning is unfiltered (not | |
515 | paginated) so that the user does not need to page through each | |
516 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
517 | |
518 | void | |
f5a96129 | 519 | vwarning (const char *string, va_list args) |
c906108c | 520 | { |
9a4105ab AC |
521 | if (deprecated_warning_hook) |
522 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
523 | else |
524 | { | |
525 | target_terminal_ours (); | |
581e13c1 | 526 | wrap_here (""); /* Force out any buffered output. */ |
f5a96129 AC |
527 | gdb_flush (gdb_stdout); |
528 | if (warning_pre_print) | |
306d9ac5 | 529 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
530 | vfprintf_unfiltered (gdb_stderr, string, args); |
531 | fprintf_unfiltered (gdb_stderr, "\n"); | |
532 | va_end (args); | |
533 | } | |
c906108c SS |
534 | } |
535 | ||
536 | /* Print a warning message. | |
537 | The first argument STRING is the warning message, used as a fprintf string, | |
538 | and the remaining args are passed as arguments to it. | |
539 | The primary difference between warnings and errors is that a warning | |
540 | does not force the return to command level. */ | |
541 | ||
c906108c | 542 | void |
8731e58e | 543 | warning (const char *string, ...) |
c906108c SS |
544 | { |
545 | va_list args; | |
e0627e85 | 546 | |
c906108c | 547 | va_start (args, string); |
f5a96129 AC |
548 | vwarning (string, args); |
549 | va_end (args); | |
c906108c SS |
550 | } |
551 | ||
c906108c SS |
552 | /* Print an error message and return to command level. |
553 | The first argument STRING is the error message, used as a fprintf string, | |
554 | and the remaining args are passed as arguments to it. */ | |
555 | ||
c25c4a8b | 556 | void |
4ce44c66 JM |
557 | verror (const char *string, va_list args) |
558 | { | |
6b1b7650 | 559 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
560 | } |
561 | ||
c25c4a8b | 562 | void |
8731e58e | 563 | error (const char *string, ...) |
c906108c SS |
564 | { |
565 | va_list args; | |
e0627e85 | 566 | |
c906108c | 567 | va_start (args, string); |
6b1b7650 | 568 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 | 569 | va_end (args); |
c906108c SS |
570 | } |
571 | ||
d75e3c94 JJ |
572 | /* Print an error message and quit. |
573 | The first argument STRING is the error message, used as a fprintf string, | |
574 | and the remaining args are passed as arguments to it. */ | |
575 | ||
c25c4a8b | 576 | void |
d75e3c94 JJ |
577 | vfatal (const char *string, va_list args) |
578 | { | |
6b1b7650 | 579 | throw_vfatal (string, args); |
d75e3c94 JJ |
580 | } |
581 | ||
c25c4a8b | 582 | void |
d75e3c94 JJ |
583 | fatal (const char *string, ...) |
584 | { | |
585 | va_list args; | |
e0627e85 | 586 | |
d75e3c94 | 587 | va_start (args, string); |
6b1b7650 | 588 | throw_vfatal (string, args); |
d75e3c94 JJ |
589 | va_end (args); |
590 | } | |
591 | ||
c25c4a8b | 592 | void |
d75e3c94 | 593 | error_stream (struct ui_file *stream) |
2acceee2 | 594 | { |
759ef836 | 595 | char *message = ui_file_xstrdup (stream, NULL); |
e0627e85 | 596 | |
6b1b7650 | 597 | make_cleanup (xfree, message); |
8a3fe4f8 | 598 | error (("%s"), message); |
2acceee2 | 599 | } |
c906108c | 600 | |
7991dee7 JK |
601 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
602 | ||
603 | static void | |
604 | dump_core (void) | |
605 | { | |
606 | #ifdef HAVE_SETRLIMIT | |
607 | struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY }; | |
608 | ||
609 | setrlimit (RLIMIT_CORE, &rlim); | |
610 | #endif /* HAVE_SETRLIMIT */ | |
611 | ||
612 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
613 | } | |
614 | ||
3e43a32a MS |
615 | /* Check whether GDB will be able to dump core using the dump_core |
616 | function. */ | |
7991dee7 JK |
617 | |
618 | static int | |
619 | can_dump_core (const char *reason) | |
620 | { | |
621 | #ifdef HAVE_GETRLIMIT | |
622 | struct rlimit rlim; | |
623 | ||
624 | /* Be quiet and assume we can dump if an error is returned. */ | |
625 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
626 | return 1; | |
627 | ||
628 | if (rlim.rlim_max == 0) | |
629 | { | |
630 | fprintf_unfiltered (gdb_stderr, | |
3e43a32a MS |
631 | _("%s\nUnable to dump core, use `ulimit -c" |
632 | " unlimited' before executing GDB next time.\n"), | |
633 | reason); | |
7991dee7 JK |
634 | return 0; |
635 | } | |
636 | #endif /* HAVE_GETRLIMIT */ | |
637 | ||
638 | return 1; | |
639 | } | |
640 | ||
3c16cced PA |
641 | /* Allow the user to configure the debugger behavior with respect to |
642 | what to do when an internal problem is detected. */ | |
643 | ||
644 | const char internal_problem_ask[] = "ask"; | |
645 | const char internal_problem_yes[] = "yes"; | |
646 | const char internal_problem_no[] = "no"; | |
40478521 | 647 | static const char *const internal_problem_modes[] = |
3c16cced PA |
648 | { |
649 | internal_problem_ask, | |
650 | internal_problem_yes, | |
651 | internal_problem_no, | |
652 | NULL | |
653 | }; | |
3c16cced | 654 | |
581e13c1 | 655 | /* Print a message reporting an internal error/warning. Ask the user |
dec43320 AC |
656 | if they want to continue, dump core, or just exit. Return |
657 | something to indicate a quit. */ | |
c906108c | 658 | |
dec43320 | 659 | struct internal_problem |
c906108c | 660 | { |
dec43320 | 661 | const char *name; |
57fcfb1b | 662 | int user_settable_should_quit; |
3c16cced | 663 | const char *should_quit; |
57fcfb1b | 664 | int user_settable_should_dump_core; |
3c16cced | 665 | const char *should_dump_core; |
dec43320 AC |
666 | }; |
667 | ||
668 | /* Report a problem, internal to GDB, to the user. Once the problem | |
669 | has been reported, and assuming GDB didn't quit, the caller can | |
670 | either allow execution to resume or throw an error. */ | |
671 | ||
a0b31db1 | 672 | static void ATTRIBUTE_PRINTF (4, 0) |
dec43320 | 673 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 674 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 675 | { |
dec43320 | 676 | static int dejavu; |
375fc983 | 677 | int quit_p; |
7be570e7 | 678 | int dump_core_p; |
714b1282 | 679 | char *reason; |
48be7c1b | 680 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); |
c906108c | 681 | |
dec43320 | 682 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
683 | { |
684 | static char msg[] = "Recursive internal problem.\n"; | |
5d502164 | 685 | |
714b1282 AC |
686 | switch (dejavu) |
687 | { | |
688 | case 0: | |
689 | dejavu = 1; | |
690 | break; | |
691 | case 1: | |
692 | dejavu = 2; | |
693 | fputs_unfiltered (msg, gdb_stderr); | |
7991dee7 | 694 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
695 | default: |
696 | dejavu = 3; | |
bf1d7d9c JB |
697 | /* Newer GLIBC versions put the warn_unused_result attribute |
698 | on write, but this is one of those rare cases where | |
699 | ignoring the return value is correct. Casting to (void) | |
700 | does not fix this problem. This is the solution suggested | |
701 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
702 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
7991dee7 | 703 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
704 | exit (1); |
705 | } | |
706 | } | |
c906108c | 707 | |
dec43320 | 708 | /* Try to get the message out and at the start of a new line. */ |
4261bedc | 709 | target_terminal_ours (); |
dec43320 AC |
710 | begin_line (); |
711 | ||
714b1282 AC |
712 | /* Create a string containing the full error/warning message. Need |
713 | to call query with this full string, as otherwize the reason | |
714 | (error/warning) and question become separated. Format using a | |
715 | style similar to a compiler error message. Include extra detail | |
716 | so that the user knows that they are living on the edge. */ | |
717 | { | |
718 | char *msg; | |
5d502164 | 719 | |
e623b504 | 720 | msg = xstrvprintf (fmt, ap); |
3e43a32a MS |
721 | reason = xstrprintf ("%s:%d: %s: %s\n" |
722 | "A problem internal to GDB has been detected,\n" | |
723 | "further debugging may prove unreliable.", | |
724 | file, line, problem->name, msg); | |
714b1282 AC |
725 | xfree (msg); |
726 | make_cleanup (xfree, reason); | |
727 | } | |
7be570e7 | 728 | |
3c16cced | 729 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 730 | { |
dec43320 | 731 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
732 | this lessens the likelihood of GDB going into an infinite |
733 | loop. */ | |
e360902b | 734 | if (!confirm) |
26bb68be PP |
735 | { |
736 | /* Emit the message and quit. */ | |
737 | fputs_unfiltered (reason, gdb_stderr); | |
738 | fputs_unfiltered ("\n", gdb_stderr); | |
739 | quit_p = 1; | |
740 | } | |
741 | else | |
742 | quit_p = query (_("%s\nQuit this debugging session? "), reason); | |
dec43320 | 743 | } |
3c16cced PA |
744 | else if (problem->should_quit == internal_problem_yes) |
745 | quit_p = 1; | |
746 | else if (problem->should_quit == internal_problem_no) | |
747 | quit_p = 0; | |
748 | else | |
749 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 750 | |
add6c04d GB |
751 | fputs_unfiltered (_("\nThis is a bug, please report it."), gdb_stderr); |
752 | if (REPORT_BUGS_TO[0]) | |
753 | fprintf_unfiltered (gdb_stderr, _(" For instructions, see:\n%s."), | |
754 | REPORT_BUGS_TO); | |
755 | fputs_unfiltered ("\n\n", gdb_stderr); | |
756 | ||
3c16cced | 757 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 758 | { |
7991dee7 JK |
759 | if (!can_dump_core (reason)) |
760 | dump_core_p = 0; | |
761 | else | |
762 | { | |
763 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
764 | `dropping' so that it is easier to see that something went | |
765 | wrong in GDB. */ | |
766 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason); | |
767 | } | |
dec43320 | 768 | } |
3c16cced | 769 | else if (problem->should_dump_core == internal_problem_yes) |
7991dee7 | 770 | dump_core_p = can_dump_core (reason); |
3c16cced PA |
771 | else if (problem->should_dump_core == internal_problem_no) |
772 | dump_core_p = 0; | |
773 | else | |
774 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 775 | |
375fc983 | 776 | if (quit_p) |
7be570e7 JM |
777 | { |
778 | if (dump_core_p) | |
7991dee7 | 779 | dump_core (); |
375fc983 AC |
780 | else |
781 | exit (1); | |
7be570e7 JM |
782 | } |
783 | else | |
784 | { | |
785 | if (dump_core_p) | |
375fc983 | 786 | { |
9b265ec2 | 787 | #ifdef HAVE_WORKING_FORK |
375fc983 | 788 | if (fork () == 0) |
7991dee7 | 789 | dump_core (); |
9b265ec2 | 790 | #endif |
375fc983 | 791 | } |
7be570e7 | 792 | } |
96baa820 JM |
793 | |
794 | dejavu = 0; | |
48be7c1b | 795 | do_cleanups (cleanup); |
dec43320 AC |
796 | } |
797 | ||
798 | static struct internal_problem internal_error_problem = { | |
57fcfb1b | 799 | "internal-error", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
800 | }; |
801 | ||
c25c4a8b | 802 | void |
8731e58e | 803 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
804 | { |
805 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
8150913b | 806 | fatal (_("Command aborted.")); |
c906108c SS |
807 | } |
808 | ||
c25c4a8b | 809 | void |
8e65ff28 | 810 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
811 | { |
812 | va_list ap; | |
e0627e85 | 813 | |
4ce44c66 | 814 | va_start (ap, string); |
8e65ff28 | 815 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
816 | va_end (ap); |
817 | } | |
818 | ||
dec43320 | 819 | static struct internal_problem internal_warning_problem = { |
57fcfb1b | 820 | "internal-warning", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
821 | }; |
822 | ||
823 | void | |
8731e58e | 824 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
825 | { |
826 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
827 | } | |
828 | ||
829 | void | |
830 | internal_warning (const char *file, int line, const char *string, ...) | |
831 | { | |
832 | va_list ap; | |
e0627e85 | 833 | |
dec43320 AC |
834 | va_start (ap, string); |
835 | internal_vwarning (file, line, string, ap); | |
836 | va_end (ap); | |
837 | } | |
838 | ||
57fcfb1b GB |
839 | static struct internal_problem demangler_warning_problem = { |
840 | "demangler-warning", 1, internal_problem_ask, 0, internal_problem_no | |
841 | }; | |
842 | ||
843 | void | |
844 | demangler_vwarning (const char *file, int line, const char *fmt, va_list ap) | |
845 | { | |
846 | internal_vproblem (&demangler_warning_problem, file, line, fmt, ap); | |
847 | } | |
848 | ||
849 | void | |
850 | demangler_warning (const char *file, int line, const char *string, ...) | |
851 | { | |
852 | va_list ap; | |
853 | ||
854 | va_start (ap, string); | |
855 | demangler_vwarning (file, line, string, ap); | |
856 | va_end (ap); | |
857 | } | |
858 | ||
3c16cced PA |
859 | /* Dummy functions to keep add_prefix_cmd happy. */ |
860 | ||
861 | static void | |
862 | set_internal_problem_cmd (char *args, int from_tty) | |
863 | { | |
864 | } | |
865 | ||
866 | static void | |
867 | show_internal_problem_cmd (char *args, int from_tty) | |
868 | { | |
869 | } | |
870 | ||
871 | /* When GDB reports an internal problem (error or warning) it gives | |
872 | the user the opportunity to quit GDB and/or create a core file of | |
873 | the current debug session. This function registers a few commands | |
874 | that make it possible to specify that GDB should always or never | |
875 | quit or create a core file, without asking. The commands look | |
876 | like: | |
877 | ||
878 | maint set PROBLEM-NAME quit ask|yes|no | |
879 | maint show PROBLEM-NAME quit | |
880 | maint set PROBLEM-NAME corefile ask|yes|no | |
881 | maint show PROBLEM-NAME corefile | |
882 | ||
883 | Where PROBLEM-NAME is currently "internal-error" or | |
884 | "internal-warning". */ | |
885 | ||
886 | static void | |
887 | add_internal_problem_command (struct internal_problem *problem) | |
888 | { | |
889 | struct cmd_list_element **set_cmd_list; | |
890 | struct cmd_list_element **show_cmd_list; | |
891 | char *set_doc; | |
892 | char *show_doc; | |
893 | ||
894 | set_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
895 | show_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
896 | *set_cmd_list = NULL; | |
897 | *show_cmd_list = NULL; | |
898 | ||
899 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
900 | problem->name); | |
901 | ||
902 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
903 | problem->name); | |
904 | ||
905 | add_prefix_cmd ((char*) problem->name, | |
906 | class_maintenance, set_internal_problem_cmd, set_doc, | |
907 | set_cmd_list, | |
c4f7c687 MK |
908 | concat ("maintenance set ", problem->name, " ", |
909 | (char *) NULL), | |
3c16cced PA |
910 | 0/*allow-unknown*/, &maintenance_set_cmdlist); |
911 | ||
912 | add_prefix_cmd ((char*) problem->name, | |
913 | class_maintenance, show_internal_problem_cmd, show_doc, | |
914 | show_cmd_list, | |
c4f7c687 MK |
915 | concat ("maintenance show ", problem->name, " ", |
916 | (char *) NULL), | |
3c16cced PA |
917 | 0/*allow-unknown*/, &maintenance_show_cmdlist); |
918 | ||
57fcfb1b GB |
919 | if (problem->user_settable_should_quit) |
920 | { | |
921 | set_doc = xstrprintf (_("Set whether GDB should quit " | |
922 | "when an %s is detected"), | |
923 | problem->name); | |
924 | show_doc = xstrprintf (_("Show whether GDB will quit " | |
925 | "when an %s is detected"), | |
926 | problem->name); | |
927 | add_setshow_enum_cmd ("quit", class_maintenance, | |
928 | internal_problem_modes, | |
929 | &problem->should_quit, | |
930 | set_doc, | |
931 | show_doc, | |
932 | NULL, /* help_doc */ | |
933 | NULL, /* setfunc */ | |
934 | NULL, /* showfunc */ | |
935 | set_cmd_list, | |
936 | show_cmd_list); | |
937 | ||
938 | xfree (set_doc); | |
939 | xfree (show_doc); | |
940 | } | |
1eefb858 | 941 | |
57fcfb1b GB |
942 | if (problem->user_settable_should_dump_core) |
943 | { | |
944 | set_doc = xstrprintf (_("Set whether GDB should create a core " | |
945 | "file of GDB when %s is detected"), | |
946 | problem->name); | |
947 | show_doc = xstrprintf (_("Show whether GDB will create a core " | |
948 | "file of GDB when %s is detected"), | |
949 | problem->name); | |
950 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
951 | internal_problem_modes, | |
952 | &problem->should_dump_core, | |
953 | set_doc, | |
954 | show_doc, | |
955 | NULL, /* help_doc */ | |
956 | NULL, /* setfunc */ | |
957 | NULL, /* showfunc */ | |
958 | set_cmd_list, | |
959 | show_cmd_list); | |
960 | ||
961 | xfree (set_doc); | |
962 | xfree (show_doc); | |
963 | } | |
3c16cced PA |
964 | } |
965 | ||
0cf4063e JB |
966 | /* Return a newly allocated string, containing the PREFIX followed |
967 | by the system error message for errno (separated by a colon). | |
968 | ||
969 | The result must be deallocated after use. */ | |
970 | ||
971 | static char * | |
972 | perror_string (const char *prefix) | |
973 | { | |
974 | char *err; | |
975 | char *combined; | |
976 | ||
977 | err = safe_strerror (errno); | |
978 | combined = (char *) xmalloc (strlen (err) + strlen (prefix) + 3); | |
979 | strcpy (combined, prefix); | |
980 | strcat (combined, ": "); | |
981 | strcat (combined, err); | |
982 | ||
983 | return combined; | |
984 | } | |
985 | ||
c906108c | 986 | /* Print the system error message for errno, and also mention STRING |
598d3636 JK |
987 | as the file name for which the error was encountered. Use ERRCODE |
988 | for the thrown exception. Then return to command level. */ | |
c906108c | 989 | |
c25c4a8b | 990 | void |
598d3636 | 991 | throw_perror_with_name (enum errors errcode, const char *string) |
c906108c | 992 | { |
c906108c SS |
993 | char *combined; |
994 | ||
0cf4063e JB |
995 | combined = perror_string (string); |
996 | make_cleanup (xfree, combined); | |
c906108c SS |
997 | |
998 | /* I understand setting these is a matter of taste. Still, some people | |
999 | may clear errno but not know about bfd_error. Doing this here is not | |
581e13c1 | 1000 | unreasonable. */ |
c906108c SS |
1001 | bfd_set_error (bfd_error_no_error); |
1002 | errno = 0; | |
1003 | ||
598d3636 JK |
1004 | throw_error (errcode, _("%s."), combined); |
1005 | } | |
1006 | ||
1007 | /* See throw_perror_with_name, ERRCODE defaults here to GENERIC_ERROR. */ | |
1008 | ||
1009 | void | |
1010 | perror_with_name (const char *string) | |
1011 | { | |
1012 | throw_perror_with_name (GENERIC_ERROR, string); | |
c906108c SS |
1013 | } |
1014 | ||
7c647d61 JB |
1015 | /* Same as perror_with_name except that it prints a warning instead |
1016 | of throwing an error. */ | |
1017 | ||
1018 | void | |
1019 | perror_warning_with_name (const char *string) | |
1020 | { | |
1021 | char *combined; | |
1022 | ||
1023 | combined = perror_string (string); | |
1024 | warning (_("%s"), combined); | |
1025 | xfree (combined); | |
1026 | } | |
1027 | ||
c906108c SS |
1028 | /* Print the system error message for ERRCODE, and also mention STRING |
1029 | as the file name for which the error was encountered. */ | |
1030 | ||
1031 | void | |
6972bc8b | 1032 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
1033 | { |
1034 | char *err; | |
1035 | char *combined; | |
1036 | ||
1037 | err = safe_strerror (errcode); | |
1038 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1039 | strcpy (combined, string); | |
1040 | strcat (combined, ": "); | |
1041 | strcat (combined, err); | |
1042 | ||
1043 | /* We want anything which was printed on stdout to come out first, before | |
1044 | this message. */ | |
1045 | gdb_flush (gdb_stdout); | |
1046 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
1047 | } | |
1048 | ||
1049 | /* Control C eventually causes this to be called, at a convenient time. */ | |
1050 | ||
1051 | void | |
fba45db2 | 1052 | quit (void) |
c906108c | 1053 | { |
06c868a8 JK |
1054 | if (sync_quit_force_run) |
1055 | { | |
1056 | sync_quit_force_run = 0; | |
1057 | quit_force (NULL, stdin == instream); | |
1058 | } | |
1059 | ||
7be570e7 JM |
1060 | #ifdef __MSDOS__ |
1061 | /* No steenking SIGINT will ever be coming our way when the | |
1062 | program is resumed. Don't lie. */ | |
e06e2353 | 1063 | fatal ("Quit"); |
7be570e7 | 1064 | #else |
c906108c | 1065 | if (job_control |
8731e58e AC |
1066 | /* If there is no terminal switching for this target, then we can't |
1067 | possibly get screwed by the lack of job control. */ | |
c906108c | 1068 | || current_target.to_terminal_ours == NULL) |
e06e2353 | 1069 | fatal ("Quit"); |
c906108c | 1070 | else |
e06e2353 | 1071 | fatal ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 1072 | #endif |
c906108c SS |
1073 | } |
1074 | ||
c906108c | 1075 | \f |
c906108c | 1076 | /* Called when a memory allocation fails, with the number of bytes of |
581e13c1 | 1077 | memory requested in SIZE. */ |
c906108c | 1078 | |
c25c4a8b | 1079 | void |
d26e3629 | 1080 | malloc_failure (long size) |
c906108c SS |
1081 | { |
1082 | if (size > 0) | |
1083 | { | |
8e65ff28 | 1084 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 1085 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 1086 | size); |
c906108c SS |
1087 | } |
1088 | else | |
1089 | { | |
e2e0b3e5 | 1090 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
1091 | } |
1092 | } | |
1093 | ||
c906108c SS |
1094 | /* My replacement for the read system call. |
1095 | Used like `read' but keeps going if `read' returns too soon. */ | |
1096 | ||
1097 | int | |
fba45db2 | 1098 | myread (int desc, char *addr, int len) |
c906108c | 1099 | { |
52f0bd74 | 1100 | int val; |
c906108c SS |
1101 | int orglen = len; |
1102 | ||
1103 | while (len > 0) | |
1104 | { | |
1105 | val = read (desc, addr, len); | |
1106 | if (val < 0) | |
1107 | return val; | |
1108 | if (val == 0) | |
1109 | return orglen - len; | |
1110 | len -= val; | |
1111 | addr += val; | |
1112 | } | |
1113 | return orglen; | |
1114 | } | |
d26e3629 | 1115 | |
c906108c | 1116 | void |
aa1ee363 | 1117 | print_spaces (int n, struct ui_file *file) |
c906108c | 1118 | { |
392a587b | 1119 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1120 | } |
1121 | ||
1122 | /* Print a host address. */ | |
1123 | ||
1124 | void | |
ac16bf07 | 1125 | gdb_print_host_address (const void *addr, struct ui_file *stream) |
c906108c | 1126 | { |
ea8992ce | 1127 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 1128 | } |
c906108c | 1129 | \f |
c5aa993b | 1130 | |
dc92e161 TT |
1131 | /* A cleanup function that calls regfree. */ |
1132 | ||
1133 | static void | |
1134 | do_regfree_cleanup (void *r) | |
1135 | { | |
1136 | regfree (r); | |
1137 | } | |
1138 | ||
1139 | /* Create a new cleanup that frees the compiled regular expression R. */ | |
1140 | ||
1141 | struct cleanup * | |
1142 | make_regfree_cleanup (regex_t *r) | |
1143 | { | |
1144 | return make_cleanup (do_regfree_cleanup, r); | |
1145 | } | |
1146 | ||
1147 | /* Return an xmalloc'd error message resulting from a regular | |
1148 | expression compilation failure. */ | |
1149 | ||
1150 | char * | |
1151 | get_regcomp_error (int code, regex_t *rx) | |
1152 | { | |
1153 | size_t length = regerror (code, rx, NULL, 0); | |
1154 | char *result = xmalloc (length); | |
1155 | ||
1156 | regerror (code, rx, result, length); | |
1157 | return result; | |
1158 | } | |
1159 | ||
cc16e6c9 | 1160 | /* Compile a regexp and throw an exception on error. This returns a |
db26349c TT |
1161 | cleanup to free the resulting pattern on success. RX must not be |
1162 | NULL. */ | |
cc16e6c9 TT |
1163 | |
1164 | struct cleanup * | |
1165 | compile_rx_or_error (regex_t *pattern, const char *rx, const char *message) | |
1166 | { | |
1167 | int code; | |
1168 | ||
db26349c | 1169 | gdb_assert (rx != NULL); |
cc16e6c9 TT |
1170 | |
1171 | code = regcomp (pattern, rx, REG_NOSUB); | |
1172 | if (code != 0) | |
1173 | { | |
1174 | char *err = get_regcomp_error (code, pattern); | |
1175 | ||
1176 | make_cleanup (xfree, err); | |
1177 | error (("%s: %s"), message, err); | |
1178 | } | |
1179 | ||
1180 | return make_regfree_cleanup (pattern); | |
1181 | } | |
1182 | ||
dc92e161 TT |
1183 | \f |
1184 | ||
981c7f5a | 1185 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 1186 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
1187 | answer is yes, or default the answer to the specified default |
1188 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
1189 | default answer, or '\0' for no default. | |
cbdeadca JJ |
1190 | CTLSTR is the control string and should end in "? ". It should |
1191 | not say how to answer, because we do that. | |
1192 | ARGS are the arguments passed along with the CTLSTR argument to | |
1193 | printf. */ | |
1194 | ||
a0b31db1 | 1195 | static int ATTRIBUTE_PRINTF (1, 0) |
cbdeadca JJ |
1196 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
1197 | { | |
1198 | int answer; | |
1199 | int ans2; | |
1200 | int retval; | |
1201 | int def_value; | |
1202 | char def_answer, not_def_answer; | |
981c7f5a | 1203 | char *y_string, *n_string, *question; |
260c0b2a DE |
1204 | /* Used to add duration we waited for user to respond to |
1205 | prompt_for_continue_wait_time. */ | |
1206 | struct timeval prompt_started, prompt_ended, prompt_delta; | |
cbdeadca JJ |
1207 | |
1208 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
1209 | if (defchar == '\0') |
1210 | { | |
1211 | def_value = 1; | |
1212 | def_answer = 'Y'; | |
1213 | not_def_answer = 'N'; | |
1214 | y_string = "y"; | |
1215 | n_string = "n"; | |
1216 | } | |
1217 | else if (defchar == 'y') | |
cbdeadca JJ |
1218 | { |
1219 | def_value = 1; | |
1220 | def_answer = 'Y'; | |
1221 | not_def_answer = 'N'; | |
1222 | y_string = "[y]"; | |
1223 | n_string = "n"; | |
1224 | } | |
1225 | else | |
1226 | { | |
1227 | def_value = 0; | |
1228 | def_answer = 'N'; | |
1229 | not_def_answer = 'Y'; | |
1230 | y_string = "y"; | |
1231 | n_string = "[n]"; | |
1232 | } | |
1233 | ||
981c7f5a | 1234 | /* Automatically answer the default value if the user did not want |
a502cf95 | 1235 | prompts or the command was issued with the server prefix. */ |
e360902b | 1236 | if (!confirm || server_command) |
981c7f5a DJ |
1237 | return def_value; |
1238 | ||
1239 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 1240 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
1241 | way, important error messages don't get lost when talking to GDB |
1242 | over a pipe. */ | |
c63a1f86 | 1243 | if (! input_from_terminal_p ()) |
981c7f5a DJ |
1244 | { |
1245 | wrap_here (""); | |
1246 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1247 | ||
3e43a32a MS |
1248 | printf_filtered (_("(%s or %s) [answered %c; " |
1249 | "input not from terminal]\n"), | |
981c7f5a DJ |
1250 | y_string, n_string, def_answer); |
1251 | gdb_flush (gdb_stdout); | |
1252 | ||
1253 | return def_value; | |
1254 | } | |
1255 | ||
9a4105ab | 1256 | if (deprecated_query_hook) |
cbdeadca | 1257 | { |
9a4105ab | 1258 | return deprecated_query_hook (ctlstr, args); |
cbdeadca JJ |
1259 | } |
1260 | ||
981c7f5a DJ |
1261 | /* Format the question outside of the loop, to avoid reusing args. */ |
1262 | question = xstrvprintf (ctlstr, args); | |
1263 | ||
260c0b2a DE |
1264 | /* Used for calculating time spend waiting for user. */ |
1265 | gettimeofday (&prompt_started, NULL); | |
1266 | ||
cbdeadca JJ |
1267 | while (1) |
1268 | { | |
581e13c1 | 1269 | wrap_here (""); /* Flush any buffered output. */ |
cbdeadca JJ |
1270 | gdb_flush (gdb_stdout); |
1271 | ||
1272 | if (annotation_level > 1) | |
a3f17187 | 1273 | printf_filtered (("\n\032\032pre-query\n")); |
cbdeadca | 1274 | |
981c7f5a | 1275 | fputs_filtered (question, gdb_stdout); |
a3f17187 | 1276 | printf_filtered (_("(%s or %s) "), y_string, n_string); |
cbdeadca JJ |
1277 | |
1278 | if (annotation_level > 1) | |
a3f17187 | 1279 | printf_filtered (("\n\032\032query\n")); |
cbdeadca JJ |
1280 | |
1281 | wrap_here (""); | |
1282 | gdb_flush (gdb_stdout); | |
1283 | ||
1284 | answer = fgetc (stdin); | |
8626589c JB |
1285 | |
1286 | /* We expect fgetc to block until a character is read. But | |
1287 | this may not be the case if the terminal was opened with | |
1288 | the NONBLOCK flag. In that case, if there is nothing to | |
1289 | read on stdin, fgetc returns EOF, but also sets the error | |
1290 | condition flag on stdin and errno to EAGAIN. With a true | |
1291 | EOF, stdin's error condition flag is not set. | |
1292 | ||
1293 | A situation where this behavior was observed is a pseudo | |
1294 | terminal on AIX. */ | |
1295 | while (answer == EOF && ferror (stdin) && errno == EAGAIN) | |
1296 | { | |
1297 | /* Not a real EOF. Wait a little while and try again until | |
1298 | we read something. */ | |
1299 | clearerr (stdin); | |
1300 | gdb_usleep (10000); | |
1301 | answer = fgetc (stdin); | |
1302 | } | |
1303 | ||
cbdeadca JJ |
1304 | clearerr (stdin); /* in case of C-d */ |
1305 | if (answer == EOF) /* C-d */ | |
1306 | { | |
fa3fd85b | 1307 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
1308 | retval = def_value; |
1309 | break; | |
1310 | } | |
581e13c1 | 1311 | /* Eat rest of input line, to EOF or newline. */ |
cbdeadca JJ |
1312 | if (answer != '\n') |
1313 | do | |
1314 | { | |
1315 | ans2 = fgetc (stdin); | |
1316 | clearerr (stdin); | |
1317 | } | |
1318 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); | |
1319 | ||
1320 | if (answer >= 'a') | |
1321 | answer -= 040; | |
1322 | /* Check answer. For the non-default, the user must specify | |
1323 | the non-default explicitly. */ | |
1324 | if (answer == not_def_answer) | |
1325 | { | |
1326 | retval = !def_value; | |
1327 | break; | |
1328 | } | |
981c7f5a DJ |
1329 | /* Otherwise, if a default was specified, the user may either |
1330 | specify the required input or have it default by entering | |
1331 | nothing. */ | |
1332 | if (answer == def_answer | |
1333 | || (defchar != '\0' && | |
1334 | (answer == '\n' || answer == '\r' || answer == EOF))) | |
cbdeadca JJ |
1335 | { |
1336 | retval = def_value; | |
1337 | break; | |
1338 | } | |
1339 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 1340 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
1341 | y_string, n_string); |
1342 | } | |
1343 | ||
260c0b2a DE |
1344 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
1345 | gettimeofday (&prompt_ended, NULL); | |
1346 | timeval_sub (&prompt_delta, &prompt_ended, &prompt_started); | |
1347 | timeval_add (&prompt_for_continue_wait_time, | |
1348 | &prompt_for_continue_wait_time, &prompt_delta); | |
1349 | ||
981c7f5a | 1350 | xfree (question); |
cbdeadca | 1351 | if (annotation_level > 1) |
a3f17187 | 1352 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
1353 | return retval; |
1354 | } | |
1355 | \f | |
1356 | ||
1357 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1358 | answer is yes, or 0 if answer is defaulted. | |
1359 | Takes three args which are given to printf to print the question. | |
1360 | The first, a control string, should end in "? ". | |
1361 | It should not say how to answer, because we do that. */ | |
1362 | ||
1363 | int | |
1364 | nquery (const char *ctlstr, ...) | |
1365 | { | |
1366 | va_list args; | |
899500d6 | 1367 | int ret; |
cbdeadca JJ |
1368 | |
1369 | va_start (args, ctlstr); | |
899500d6 | 1370 | ret = defaulted_query (ctlstr, 'n', args); |
cbdeadca | 1371 | va_end (args); |
899500d6 | 1372 | return ret; |
cbdeadca JJ |
1373 | } |
1374 | ||
1375 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1376 | answer is yes, or 1 if answer is defaulted. | |
1377 | Takes three args which are given to printf to print the question. | |
1378 | The first, a control string, should end in "? ". | |
1379 | It should not say how to answer, because we do that. */ | |
1380 | ||
1381 | int | |
1382 | yquery (const char *ctlstr, ...) | |
1383 | { | |
1384 | va_list args; | |
899500d6 | 1385 | int ret; |
cbdeadca JJ |
1386 | |
1387 | va_start (args, ctlstr); | |
899500d6 | 1388 | ret = defaulted_query (ctlstr, 'y', args); |
cbdeadca | 1389 | va_end (args); |
899500d6 | 1390 | return ret; |
cbdeadca JJ |
1391 | } |
1392 | ||
981c7f5a DJ |
1393 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
1394 | Takes three args which are given to printf to print the question. | |
1395 | The first, a control string, should end in "? ". | |
1396 | It should not say how to answer, because we do that. */ | |
1397 | ||
1398 | int | |
1399 | query (const char *ctlstr, ...) | |
1400 | { | |
1401 | va_list args; | |
899500d6 | 1402 | int ret; |
981c7f5a DJ |
1403 | |
1404 | va_start (args, ctlstr); | |
899500d6 | 1405 | ret = defaulted_query (ctlstr, '\0', args); |
981c7f5a | 1406 | va_end (args); |
899500d6 | 1407 | return ret; |
981c7f5a DJ |
1408 | } |
1409 | ||
6c7a06a3 TT |
1410 | /* A helper for parse_escape that converts a host character to a |
1411 | target character. C is the host character. If conversion is | |
1412 | possible, then the target character is stored in *TARGET_C and the | |
1413 | function returns 1. Otherwise, the function returns 0. */ | |
1414 | ||
1415 | static int | |
f870a310 | 1416 | host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c) |
234b45d4 | 1417 | { |
6c7a06a3 TT |
1418 | struct obstack host_data; |
1419 | char the_char = c; | |
1420 | struct cleanup *cleanups; | |
1421 | int result = 0; | |
234b45d4 | 1422 | |
6c7a06a3 TT |
1423 | obstack_init (&host_data); |
1424 | cleanups = make_cleanup_obstack_free (&host_data); | |
234b45d4 | 1425 | |
f870a310 | 1426 | convert_between_encodings (target_charset (gdbarch), host_charset (), |
ac91cd70 PA |
1427 | (gdb_byte *) &the_char, 1, 1, |
1428 | &host_data, translit_none); | |
6c7a06a3 TT |
1429 | |
1430 | if (obstack_object_size (&host_data) == 1) | |
1431 | { | |
1432 | result = 1; | |
1433 | *target_c = *(char *) obstack_base (&host_data); | |
1434 | } | |
1435 | ||
1436 | do_cleanups (cleanups); | |
1437 | return result; | |
234b45d4 KB |
1438 | } |
1439 | ||
c906108c SS |
1440 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1441 | containing a pointer to the string to parse. That pointer | |
1442 | should point to the character after the \. That pointer | |
1443 | is updated past the characters we use. The value of the | |
1444 | escape sequence is returned. | |
1445 | ||
1446 | A negative value means the sequence \ newline was seen, | |
1447 | which is supposed to be equivalent to nothing at all. | |
1448 | ||
1449 | If \ is followed by a null character, we return a negative | |
1450 | value and leave the string pointer pointing at the null character. | |
1451 | ||
1452 | If \ is followed by 000, we return 0 and leave the string pointer | |
1453 | after the zeros. A value of 0 does not mean end of string. */ | |
1454 | ||
1455 | int | |
d7561cbb | 1456 | parse_escape (struct gdbarch *gdbarch, const char **string_ptr) |
c906108c | 1457 | { |
581e13c1 | 1458 | int target_char = -2; /* Initialize to avoid GCC warnings. */ |
52f0bd74 | 1459 | int c = *(*string_ptr)++; |
e0627e85 | 1460 | |
6c7a06a3 TT |
1461 | switch (c) |
1462 | { | |
8731e58e AC |
1463 | case '\n': |
1464 | return -2; | |
1465 | case 0: | |
1466 | (*string_ptr)--; | |
1467 | return 0; | |
8731e58e AC |
1468 | |
1469 | case '0': | |
1470 | case '1': | |
1471 | case '2': | |
1472 | case '3': | |
1473 | case '4': | |
1474 | case '5': | |
1475 | case '6': | |
1476 | case '7': | |
1477 | { | |
6c7a06a3 | 1478 | int i = host_hex_value (c); |
aa1ee363 | 1479 | int count = 0; |
8731e58e AC |
1480 | while (++count < 3) |
1481 | { | |
5cb316ef | 1482 | c = (**string_ptr); |
6c7a06a3 | 1483 | if (isdigit (c) && c != '8' && c != '9') |
8731e58e | 1484 | { |
5cb316ef | 1485 | (*string_ptr)++; |
8731e58e | 1486 | i *= 8; |
6c7a06a3 | 1487 | i += host_hex_value (c); |
8731e58e AC |
1488 | } |
1489 | else | |
1490 | { | |
8731e58e AC |
1491 | break; |
1492 | } | |
1493 | } | |
1494 | return i; | |
1495 | } | |
6c7a06a3 TT |
1496 | |
1497 | case 'a': | |
1498 | c = '\a'; | |
1499 | break; | |
1500 | case 'b': | |
1501 | c = '\b'; | |
1502 | break; | |
1503 | case 'f': | |
1504 | c = '\f'; | |
1505 | break; | |
1506 | case 'n': | |
1507 | c = '\n'; | |
1508 | break; | |
1509 | case 'r': | |
1510 | c = '\r'; | |
1511 | break; | |
1512 | case 't': | |
1513 | c = '\t'; | |
1514 | break; | |
1515 | case 'v': | |
1516 | c = '\v'; | |
1517 | break; | |
1518 | ||
1519 | default: | |
1520 | break; | |
1521 | } | |
1522 | ||
f870a310 | 1523 | if (!host_char_to_target (gdbarch, c, &target_char)) |
3351ea09 JB |
1524 | error (_("The escape sequence `\\%c' is equivalent to plain `%c'," |
1525 | " which has no equivalent\nin the `%s' character set."), | |
905b671b | 1526 | c, c, target_charset (gdbarch)); |
6c7a06a3 | 1527 | return target_char; |
c906108c SS |
1528 | } |
1529 | \f | |
1530 | /* Print the character C on STREAM as part of the contents of a literal | |
1531 | string whose delimiter is QUOTER. Note that this routine should only | |
1532 | be call for printing things which are independent of the language | |
6ef284bd SM |
1533 | of the program being debugged. |
1534 | ||
1535 | printchar will normally escape backslashes and instances of QUOTER. If | |
1536 | QUOTER is 0, printchar won't escape backslashes or any quoting character. | |
1537 | As a side effect, if you pass the backslash character as the QUOTER, | |
1538 | printchar will escape backslashes as usual, but not any other quoting | |
1539 | character. */ | |
c906108c | 1540 | |
43e526b9 | 1541 | static void |
74f832da | 1542 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
bee0189a DJ |
1543 | void (*do_fprintf) (struct ui_file *, const char *, ...) |
1544 | ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter) | |
c906108c | 1545 | { |
c906108c SS |
1546 | c &= 0xFF; /* Avoid sign bit follies */ |
1547 | ||
c5aa993b JM |
1548 | if (c < 0x20 || /* Low control chars */ |
1549 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1550 | (sevenbit_strings && c >= 0x80)) | |
1551 | { /* high order bit set */ | |
1552 | switch (c) | |
1553 | { | |
1554 | case '\n': | |
43e526b9 | 1555 | do_fputs ("\\n", stream); |
c5aa993b JM |
1556 | break; |
1557 | case '\b': | |
43e526b9 | 1558 | do_fputs ("\\b", stream); |
c5aa993b JM |
1559 | break; |
1560 | case '\t': | |
43e526b9 | 1561 | do_fputs ("\\t", stream); |
c5aa993b JM |
1562 | break; |
1563 | case '\f': | |
43e526b9 | 1564 | do_fputs ("\\f", stream); |
c5aa993b JM |
1565 | break; |
1566 | case '\r': | |
43e526b9 | 1567 | do_fputs ("\\r", stream); |
c5aa993b JM |
1568 | break; |
1569 | case '\033': | |
43e526b9 | 1570 | do_fputs ("\\e", stream); |
c5aa993b JM |
1571 | break; |
1572 | case '\007': | |
43e526b9 | 1573 | do_fputs ("\\a", stream); |
c5aa993b JM |
1574 | break; |
1575 | default: | |
43e526b9 | 1576 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1577 | break; |
1578 | } | |
1579 | } | |
1580 | else | |
1581 | { | |
6ef284bd | 1582 | if (quoter != 0 && (c == '\\' || c == quoter)) |
43e526b9 JM |
1583 | do_fputs ("\\", stream); |
1584 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1585 | } |
c906108c | 1586 | } |
43e526b9 JM |
1587 | |
1588 | /* Print the character C on STREAM as part of the contents of a | |
1589 | literal string whose delimiter is QUOTER. Note that these routines | |
1590 | should only be call for printing things which are independent of | |
581e13c1 | 1591 | the language of the program being debugged. */ |
43e526b9 JM |
1592 | |
1593 | void | |
fba45db2 | 1594 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1595 | { |
1596 | while (*str) | |
1597 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1598 | } | |
1599 | ||
1600 | void | |
fba45db2 | 1601 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1602 | { |
1603 | while (*str) | |
1604 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1605 | } | |
1606 | ||
0876f84a DJ |
1607 | void |
1608 | fputstrn_filtered (const char *str, int n, int quoter, | |
1609 | struct ui_file *stream) | |
1610 | { | |
1611 | int i; | |
e0627e85 | 1612 | |
0876f84a DJ |
1613 | for (i = 0; i < n; i++) |
1614 | printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter); | |
1615 | } | |
1616 | ||
43e526b9 | 1617 | void |
8731e58e AC |
1618 | fputstrn_unfiltered (const char *str, int n, int quoter, |
1619 | struct ui_file *stream) | |
43e526b9 JM |
1620 | { |
1621 | int i; | |
5d502164 | 1622 | |
43e526b9 JM |
1623 | for (i = 0; i < n; i++) |
1624 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1625 | } | |
c906108c | 1626 | \f |
c5aa993b | 1627 | |
c906108c SS |
1628 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1629 | static unsigned int lines_per_page; | |
920d2a44 AC |
1630 | static void |
1631 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1632 | struct cmd_list_element *c, const char *value) | |
1633 | { | |
3e43a32a MS |
1634 | fprintf_filtered (file, |
1635 | _("Number of lines gdb thinks are in a page is %s.\n"), | |
920d2a44 AC |
1636 | value); |
1637 | } | |
eb0d3137 | 1638 | |
cbfbd72a | 1639 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1640 | static unsigned int chars_per_line; |
920d2a44 AC |
1641 | static void |
1642 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1643 | struct cmd_list_element *c, const char *value) | |
1644 | { | |
3e43a32a MS |
1645 | fprintf_filtered (file, |
1646 | _("Number of characters gdb thinks " | |
1647 | "are in a line is %s.\n"), | |
920d2a44 AC |
1648 | value); |
1649 | } | |
eb0d3137 | 1650 | |
c906108c SS |
1651 | /* Current count of lines printed on this page, chars on this line. */ |
1652 | static unsigned int lines_printed, chars_printed; | |
1653 | ||
1654 | /* Buffer and start column of buffered text, for doing smarter word- | |
1655 | wrapping. When someone calls wrap_here(), we start buffering output | |
1656 | that comes through fputs_filtered(). If we see a newline, we just | |
1657 | spit it out and forget about the wrap_here(). If we see another | |
1658 | wrap_here(), we spit it out and remember the newer one. If we see | |
1659 | the end of the line, we spit out a newline, the indent, and then | |
1660 | the buffered output. */ | |
1661 | ||
1662 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1663 | are waiting to be output (they have already been counted in chars_printed). | |
1664 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1665 | static char *wrap_buffer; | |
1666 | ||
1667 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1668 | static char *wrap_pointer; | |
1669 | ||
1670 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1671 | is non-zero. */ | |
1672 | static char *wrap_indent; | |
1673 | ||
1674 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1675 | is not in effect. */ | |
1676 | static int wrap_column; | |
c906108c | 1677 | \f |
c5aa993b | 1678 | |
eb0d3137 MK |
1679 | /* Inialize the number of lines per page and chars per line. */ |
1680 | ||
c906108c | 1681 | void |
fba45db2 | 1682 | init_page_info (void) |
c906108c | 1683 | { |
5da1313b JK |
1684 | if (batch_flag) |
1685 | { | |
1686 | lines_per_page = UINT_MAX; | |
1687 | chars_per_line = UINT_MAX; | |
1688 | } | |
1689 | else | |
c906108c | 1690 | #if defined(TUI) |
5ecb1806 | 1691 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1692 | #endif |
1693 | { | |
eb0d3137 | 1694 | int rows, cols; |
c906108c | 1695 | |
ec145965 EZ |
1696 | #if defined(__GO32__) |
1697 | rows = ScreenRows (); | |
1698 | cols = ScreenCols (); | |
1699 | lines_per_page = rows; | |
1700 | chars_per_line = cols; | |
1701 | #else | |
eb0d3137 MK |
1702 | /* Make sure Readline has initialized its terminal settings. */ |
1703 | rl_reset_terminal (NULL); | |
c906108c | 1704 | |
eb0d3137 MK |
1705 | /* Get the screen size from Readline. */ |
1706 | rl_get_screen_size (&rows, &cols); | |
1707 | lines_per_page = rows; | |
1708 | chars_per_line = cols; | |
c906108c | 1709 | |
1a66331e PM |
1710 | /* Readline should have fetched the termcap entry for us. |
1711 | Only try to use tgetnum function if rl_get_screen_size | |
1712 | did not return a useful value. */ | |
1713 | if (((rows <= 0) && (tgetnum ("li") < 0)) | |
1714 | /* Also disable paging if inside EMACS. */ | |
1715 | || getenv ("EMACS")) | |
eb0d3137 | 1716 | { |
1a66331e PM |
1717 | /* The number of lines per page is not mentioned in the terminal |
1718 | description or EMACS evironment variable is set. This probably | |
1719 | means that paging is not useful, so disable paging. */ | |
eb0d3137 MK |
1720 | lines_per_page = UINT_MAX; |
1721 | } | |
c906108c | 1722 | |
c906108c | 1723 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1724 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1725 | lines_per_page = UINT_MAX; |
eb0d3137 | 1726 | #endif |
ec145965 | 1727 | } |
eb0d3137 MK |
1728 | |
1729 | set_screen_size (); | |
c5aa993b | 1730 | set_width (); |
c906108c SS |
1731 | } |
1732 | ||
5da1313b JK |
1733 | /* Helper for make_cleanup_restore_page_info. */ |
1734 | ||
1735 | static void | |
1736 | do_restore_page_info_cleanup (void *arg) | |
1737 | { | |
1738 | set_screen_size (); | |
1739 | set_width (); | |
1740 | } | |
1741 | ||
1742 | /* Provide cleanup for restoring the terminal size. */ | |
1743 | ||
1744 | struct cleanup * | |
1745 | make_cleanup_restore_page_info (void) | |
1746 | { | |
1747 | struct cleanup *back_to; | |
1748 | ||
1749 | back_to = make_cleanup (do_restore_page_info_cleanup, NULL); | |
1750 | make_cleanup_restore_uinteger (&lines_per_page); | |
1751 | make_cleanup_restore_uinteger (&chars_per_line); | |
1752 | ||
1753 | return back_to; | |
1754 | } | |
1755 | ||
1756 | /* Temporarily set BATCH_FLAG and the associated unlimited terminal size. | |
1757 | Provide cleanup for restoring the original state. */ | |
1758 | ||
1759 | struct cleanup * | |
1760 | set_batch_flag_and_make_cleanup_restore_page_info (void) | |
1761 | { | |
1762 | struct cleanup *back_to = make_cleanup_restore_page_info (); | |
1763 | ||
1764 | make_cleanup_restore_integer (&batch_flag); | |
1765 | batch_flag = 1; | |
1766 | init_page_info (); | |
1767 | ||
1768 | return back_to; | |
1769 | } | |
1770 | ||
eb0d3137 MK |
1771 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1772 | ||
1773 | static void | |
1774 | set_screen_size (void) | |
1775 | { | |
1776 | int rows = lines_per_page; | |
1777 | int cols = chars_per_line; | |
1778 | ||
1779 | if (rows <= 0) | |
1780 | rows = INT_MAX; | |
1781 | ||
1782 | if (cols <= 0) | |
0caa462c | 1783 | cols = INT_MAX; |
eb0d3137 MK |
1784 | |
1785 | /* Update Readline's idea of the terminal size. */ | |
1786 | rl_set_screen_size (rows, cols); | |
1787 | } | |
1788 | ||
1789 | /* Reinitialize WRAP_BUFFER according to the current value of | |
1790 | CHARS_PER_LINE. */ | |
1791 | ||
c906108c | 1792 | static void |
fba45db2 | 1793 | set_width (void) |
c906108c SS |
1794 | { |
1795 | if (chars_per_line == 0) | |
c5aa993b | 1796 | init_page_info (); |
c906108c SS |
1797 | |
1798 | if (!wrap_buffer) | |
1799 | { | |
1800 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1801 | wrap_buffer[0] = '\0'; | |
1802 | } | |
1803 | else | |
1804 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 1805 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
1806 | } |
1807 | ||
c5aa993b | 1808 | static void |
fba45db2 | 1809 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1810 | { |
eb0d3137 | 1811 | set_screen_size (); |
c906108c SS |
1812 | set_width (); |
1813 | } | |
1814 | ||
eb0d3137 MK |
1815 | static void |
1816 | set_height_command (char *args, int from_tty, struct cmd_list_element *c) | |
1817 | { | |
1818 | set_screen_size (); | |
1819 | } | |
1820 | ||
c906108c SS |
1821 | /* Wait, so the user can read what's on the screen. Prompt the user |
1822 | to continue by pressing RETURN. */ | |
1823 | ||
1824 | static void | |
fba45db2 | 1825 | prompt_for_continue (void) |
c906108c SS |
1826 | { |
1827 | char *ignore; | |
1828 | char cont_prompt[120]; | |
260c0b2a DE |
1829 | /* Used to add duration we waited for user to respond to |
1830 | prompt_for_continue_wait_time. */ | |
1831 | struct timeval prompt_started, prompt_ended, prompt_delta; | |
1832 | ||
1833 | gettimeofday (&prompt_started, NULL); | |
c906108c SS |
1834 | |
1835 | if (annotation_level > 1) | |
a3f17187 | 1836 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
1837 | |
1838 | strcpy (cont_prompt, | |
1839 | "---Type <return> to continue, or q <return> to quit---"); | |
1840 | if (annotation_level > 1) | |
1841 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1842 | ||
1843 | /* We must do this *before* we call gdb_readline, else it will eventually | |
1844 | call us -- thinking that we're trying to print beyond the end of the | |
1845 | screen. */ | |
1846 | reinitialize_more_filter (); | |
1847 | ||
1848 | immediate_quit++; | |
522002f9 | 1849 | QUIT; |
c906108c SS |
1850 | /* On a real operating system, the user can quit with SIGINT. |
1851 | But not on GO32. | |
1852 | ||
1853 | 'q' is provided on all systems so users don't have to change habits | |
1854 | from system to system, and because telling them what to do in | |
1855 | the prompt is more user-friendly than expecting them to think of | |
1856 | SIGINT. */ | |
1857 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
1858 | whereas control-C to gdb_readline will cause the user to get dumped | |
1859 | out to DOS. */ | |
b4f5539f | 1860 | ignore = gdb_readline_wrapper (cont_prompt); |
c906108c | 1861 | |
260c0b2a DE |
1862 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
1863 | gettimeofday (&prompt_ended, NULL); | |
1864 | timeval_sub (&prompt_delta, &prompt_ended, &prompt_started); | |
1865 | timeval_add (&prompt_for_continue_wait_time, | |
1866 | &prompt_for_continue_wait_time, &prompt_delta); | |
1867 | ||
c906108c | 1868 | if (annotation_level > 1) |
a3f17187 | 1869 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c SS |
1870 | |
1871 | if (ignore) | |
1872 | { | |
1873 | char *p = ignore; | |
5d502164 | 1874 | |
c906108c SS |
1875 | while (*p == ' ' || *p == '\t') |
1876 | ++p; | |
1877 | if (p[0] == 'q') | |
522002f9 | 1878 | quit (); |
b8c9b27d | 1879 | xfree (ignore); |
c906108c SS |
1880 | } |
1881 | immediate_quit--; | |
1882 | ||
1883 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1884 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1885 | reinitialize_more_filter (); | |
1886 | ||
581e13c1 | 1887 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ |
c906108c SS |
1888 | } |
1889 | ||
bd712aed DE |
1890 | /* Initalize timer to keep track of how long we waited for the user. */ |
1891 | ||
1892 | void | |
1893 | reset_prompt_for_continue_wait_time (void) | |
1894 | { | |
1895 | static const struct timeval zero_timeval = { 0 }; | |
1896 | ||
1897 | prompt_for_continue_wait_time = zero_timeval; | |
1898 | } | |
1899 | ||
1900 | /* Fetch the cumulative time spent in prompt_for_continue. */ | |
1901 | ||
1902 | struct timeval | |
1903 | get_prompt_for_continue_wait_time (void) | |
1904 | { | |
1905 | return prompt_for_continue_wait_time; | |
1906 | } | |
1907 | ||
c906108c SS |
1908 | /* Reinitialize filter; ie. tell it to reset to original values. */ |
1909 | ||
1910 | void | |
fba45db2 | 1911 | reinitialize_more_filter (void) |
c906108c SS |
1912 | { |
1913 | lines_printed = 0; | |
1914 | chars_printed = 0; | |
1915 | } | |
1916 | ||
1917 | /* Indicate that if the next sequence of characters overflows the line, | |
581e13c1 | 1918 | a newline should be inserted here rather than when it hits the end. |
c906108c SS |
1919 | If INDENT is non-null, it is a string to be printed to indent the |
1920 | wrapped part on the next line. INDENT must remain accessible until | |
1921 | the next call to wrap_here() or until a newline is printed through | |
1922 | fputs_filtered(). | |
1923 | ||
1924 | If the line is already overfull, we immediately print a newline and | |
1925 | the indentation, and disable further wrapping. | |
1926 | ||
1927 | If we don't know the width of lines, but we know the page height, | |
1928 | we must not wrap words, but should still keep track of newlines | |
1929 | that were explicitly printed. | |
1930 | ||
1931 | INDENT should not contain tabs, as that will mess up the char count | |
1932 | on the next line. FIXME. | |
1933 | ||
1934 | This routine is guaranteed to force out any output which has been | |
1935 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1936 | used to force out output from the wrap_buffer. */ | |
1937 | ||
1938 | void | |
fba45db2 | 1939 | wrap_here (char *indent) |
c906108c | 1940 | { |
581e13c1 | 1941 | /* This should have been allocated, but be paranoid anyway. */ |
c906108c | 1942 | if (!wrap_buffer) |
3e43a32a MS |
1943 | internal_error (__FILE__, __LINE__, |
1944 | _("failed internal consistency check")); | |
c906108c SS |
1945 | |
1946 | if (wrap_buffer[0]) | |
1947 | { | |
1948 | *wrap_pointer = '\0'; | |
1949 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1950 | } | |
1951 | wrap_pointer = wrap_buffer; | |
1952 | wrap_buffer[0] = '\0'; | |
3e43a32a | 1953 | if (chars_per_line == UINT_MAX) /* No line overflow checking. */ |
c906108c SS |
1954 | { |
1955 | wrap_column = 0; | |
1956 | } | |
1957 | else if (chars_printed >= chars_per_line) | |
1958 | { | |
1959 | puts_filtered ("\n"); | |
1960 | if (indent != NULL) | |
1961 | puts_filtered (indent); | |
1962 | wrap_column = 0; | |
1963 | } | |
1964 | else | |
1965 | { | |
1966 | wrap_column = chars_printed; | |
1967 | if (indent == NULL) | |
1968 | wrap_indent = ""; | |
1969 | else | |
1970 | wrap_indent = indent; | |
1971 | } | |
1972 | } | |
1973 | ||
4a351cef | 1974 | /* Print input string to gdb_stdout, filtered, with wrap, |
581e13c1 | 1975 | arranging strings in columns of n chars. String can be |
4a351cef AF |
1976 | right or left justified in the column. Never prints |
1977 | trailing spaces. String should never be longer than | |
1978 | width. FIXME: this could be useful for the EXAMINE | |
581e13c1 | 1979 | command, which currently doesn't tabulate very well. */ |
4a351cef AF |
1980 | |
1981 | void | |
1982 | puts_filtered_tabular (char *string, int width, int right) | |
1983 | { | |
1984 | int spaces = 0; | |
1985 | int stringlen; | |
1986 | char *spacebuf; | |
1987 | ||
1988 | gdb_assert (chars_per_line > 0); | |
1989 | if (chars_per_line == UINT_MAX) | |
1990 | { | |
1991 | fputs_filtered (string, gdb_stdout); | |
1992 | fputs_filtered ("\n", gdb_stdout); | |
1993 | return; | |
1994 | } | |
1995 | ||
1996 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
1997 | fputs_filtered ("\n", gdb_stdout); | |
1998 | ||
1999 | if (width >= chars_per_line) | |
2000 | width = chars_per_line - 1; | |
2001 | ||
2002 | stringlen = strlen (string); | |
2003 | ||
2004 | if (chars_printed > 0) | |
2005 | spaces = width - (chars_printed - 1) % width - 1; | |
2006 | if (right) | |
2007 | spaces += width - stringlen; | |
2008 | ||
2009 | spacebuf = alloca (spaces + 1); | |
2010 | spacebuf[spaces] = '\0'; | |
2011 | while (spaces--) | |
2012 | spacebuf[spaces] = ' '; | |
2013 | ||
2014 | fputs_filtered (spacebuf, gdb_stdout); | |
2015 | fputs_filtered (string, gdb_stdout); | |
2016 | } | |
2017 | ||
2018 | ||
c906108c | 2019 | /* Ensure that whatever gets printed next, using the filtered output |
581e13c1 | 2020 | commands, starts at the beginning of the line. I.e. if there is |
c906108c | 2021 | any pending output for the current line, flush it and start a new |
581e13c1 | 2022 | line. Otherwise do nothing. */ |
c906108c SS |
2023 | |
2024 | void | |
fba45db2 | 2025 | begin_line (void) |
c906108c SS |
2026 | { |
2027 | if (chars_printed > 0) | |
2028 | { | |
2029 | puts_filtered ("\n"); | |
2030 | } | |
2031 | } | |
2032 | ||
ac9a91a7 | 2033 | |
c906108c SS |
2034 | /* Like fputs but if FILTER is true, pause after every screenful. |
2035 | ||
2036 | Regardless of FILTER can wrap at points other than the final | |
2037 | character of a line. | |
2038 | ||
2039 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
2040 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
2041 | anything. | |
2042 | ||
2043 | Note that a longjmp to top level may occur in this routine (only if | |
2044 | FILTER is true) (since prompt_for_continue may do so) so this | |
2045 | routine should not be called when cleanups are not in place. */ | |
2046 | ||
2047 | static void | |
fba45db2 KB |
2048 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
2049 | int filter) | |
c906108c SS |
2050 | { |
2051 | const char *lineptr; | |
2052 | ||
2053 | if (linebuffer == 0) | |
2054 | return; | |
2055 | ||
2056 | /* Don't do any filtering if it is disabled. */ | |
390a8aca | 2057 | if (stream != gdb_stdout |
b2e7f004 JK |
2058 | || !pagination_enabled |
2059 | || batch_flag | |
390a8aca | 2060 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) |
58dadb1b | 2061 | || top_level_interpreter () == NULL |
390a8aca | 2062 | || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) |
c906108c SS |
2063 | { |
2064 | fputs_unfiltered (linebuffer, stream); | |
2065 | return; | |
2066 | } | |
2067 | ||
2068 | /* Go through and output each character. Show line extension | |
2069 | when this is necessary; prompt user for new page when this is | |
2070 | necessary. */ | |
c5aa993b | 2071 | |
c906108c SS |
2072 | lineptr = linebuffer; |
2073 | while (*lineptr) | |
2074 | { | |
2075 | /* Possible new page. */ | |
8731e58e | 2076 | if (filter && (lines_printed >= lines_per_page - 1)) |
c906108c SS |
2077 | prompt_for_continue (); |
2078 | ||
2079 | while (*lineptr && *lineptr != '\n') | |
2080 | { | |
2081 | /* Print a single line. */ | |
2082 | if (*lineptr == '\t') | |
2083 | { | |
2084 | if (wrap_column) | |
2085 | *wrap_pointer++ = '\t'; | |
2086 | else | |
2087 | fputc_unfiltered ('\t', stream); | |
2088 | /* Shifting right by 3 produces the number of tab stops | |
2089 | we have already passed, and then adding one and | |
c5aa993b | 2090 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
2091 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
2092 | lineptr++; | |
2093 | } | |
2094 | else | |
2095 | { | |
2096 | if (wrap_column) | |
2097 | *wrap_pointer++ = *lineptr; | |
2098 | else | |
c5aa993b | 2099 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
2100 | chars_printed++; |
2101 | lineptr++; | |
2102 | } | |
c5aa993b | 2103 | |
c906108c SS |
2104 | if (chars_printed >= chars_per_line) |
2105 | { | |
2106 | unsigned int save_chars = chars_printed; | |
2107 | ||
2108 | chars_printed = 0; | |
2109 | lines_printed++; | |
2110 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
2111 | if chars_per_line is right, we probably just overflowed |
2112 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
2113 | if (wrap_column) |
2114 | fputc_unfiltered ('\n', stream); | |
2115 | ||
2116 | /* Possible new page. */ | |
2117 | if (lines_printed >= lines_per_page - 1) | |
2118 | prompt_for_continue (); | |
2119 | ||
581e13c1 | 2120 | /* Now output indentation and wrapped string. */ |
c906108c SS |
2121 | if (wrap_column) |
2122 | { | |
2123 | fputs_unfiltered (wrap_indent, stream); | |
581e13c1 MS |
2124 | *wrap_pointer = '\0'; /* Null-terminate saved stuff, */ |
2125 | fputs_unfiltered (wrap_buffer, stream); /* and eject it. */ | |
c906108c SS |
2126 | /* FIXME, this strlen is what prevents wrap_indent from |
2127 | containing tabs. However, if we recurse to print it | |
2128 | and count its chars, we risk trouble if wrap_indent is | |
581e13c1 | 2129 | longer than (the user settable) chars_per_line. |
c906108c SS |
2130 | Note also that this can set chars_printed > chars_per_line |
2131 | if we are printing a long string. */ | |
2132 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 2133 | + (save_chars - wrap_column); |
c906108c SS |
2134 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
2135 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
2136 | wrap_column = 0; /* And disable fancy wrap */ |
2137 | } | |
c906108c SS |
2138 | } |
2139 | } | |
2140 | ||
2141 | if (*lineptr == '\n') | |
2142 | { | |
2143 | chars_printed = 0; | |
3e43a32a MS |
2144 | wrap_here ((char *) 0); /* Spit out chars, cancel |
2145 | further wraps. */ | |
c906108c SS |
2146 | lines_printed++; |
2147 | fputc_unfiltered ('\n', stream); | |
2148 | lineptr++; | |
2149 | } | |
2150 | } | |
2151 | } | |
2152 | ||
2153 | void | |
fba45db2 | 2154 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
2155 | { |
2156 | fputs_maybe_filtered (linebuffer, stream, 1); | |
2157 | } | |
2158 | ||
2159 | int | |
fba45db2 | 2160 | putchar_unfiltered (int c) |
c906108c | 2161 | { |
11cf8741 | 2162 | char buf = c; |
e0627e85 | 2163 | |
d9fcf2fb | 2164 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
2165 | return c; |
2166 | } | |
2167 | ||
d1f4cff8 AC |
2168 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
2169 | May return nonlocally. */ | |
2170 | ||
2171 | int | |
2172 | putchar_filtered (int c) | |
2173 | { | |
2174 | return fputc_filtered (c, gdb_stdout); | |
2175 | } | |
2176 | ||
c906108c | 2177 | int |
fba45db2 | 2178 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 2179 | { |
11cf8741 | 2180 | char buf = c; |
e0627e85 | 2181 | |
d9fcf2fb | 2182 | ui_file_write (stream, &buf, 1); |
c906108c SS |
2183 | return c; |
2184 | } | |
2185 | ||
2186 | int | |
fba45db2 | 2187 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
2188 | { |
2189 | char buf[2]; | |
2190 | ||
2191 | buf[0] = c; | |
2192 | buf[1] = 0; | |
2193 | fputs_filtered (buf, stream); | |
2194 | return c; | |
2195 | } | |
2196 | ||
2197 | /* puts_debug is like fputs_unfiltered, except it prints special | |
2198 | characters in printable fashion. */ | |
2199 | ||
2200 | void | |
fba45db2 | 2201 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
2202 | { |
2203 | int ch; | |
2204 | ||
2205 | /* Print prefix and suffix after each line. */ | |
2206 | static int new_line = 1; | |
2207 | static int return_p = 0; | |
2208 | static char *prev_prefix = ""; | |
2209 | static char *prev_suffix = ""; | |
2210 | ||
2211 | if (*string == '\n') | |
2212 | return_p = 0; | |
2213 | ||
2214 | /* If the prefix is changing, print the previous suffix, a new line, | |
2215 | and the new prefix. */ | |
c5aa993b | 2216 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2217 | { |
9846de1b JM |
2218 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2219 | fputs_unfiltered ("\n", gdb_stdlog); | |
2220 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2221 | } |
2222 | ||
2223 | /* Print prefix if we printed a newline during the previous call. */ | |
2224 | if (new_line) | |
2225 | { | |
2226 | new_line = 0; | |
9846de1b | 2227 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2228 | } |
2229 | ||
2230 | prev_prefix = prefix; | |
2231 | prev_suffix = suffix; | |
2232 | ||
2233 | /* Output characters in a printable format. */ | |
2234 | while ((ch = *string++) != '\0') | |
2235 | { | |
2236 | switch (ch) | |
c5aa993b | 2237 | { |
c906108c SS |
2238 | default: |
2239 | if (isprint (ch)) | |
9846de1b | 2240 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2241 | |
2242 | else | |
9846de1b | 2243 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2244 | break; |
2245 | ||
c5aa993b JM |
2246 | case '\\': |
2247 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2248 | break; | |
2249 | case '\b': | |
2250 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2251 | break; | |
2252 | case '\f': | |
2253 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2254 | break; | |
2255 | case '\n': | |
2256 | new_line = 1; | |
2257 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2258 | break; | |
2259 | case '\r': | |
2260 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2261 | break; | |
2262 | case '\t': | |
2263 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2264 | break; | |
2265 | case '\v': | |
2266 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2267 | break; | |
2268 | } | |
c906108c SS |
2269 | |
2270 | return_p = ch == '\r'; | |
2271 | } | |
2272 | ||
2273 | /* Print suffix if we printed a newline. */ | |
2274 | if (new_line) | |
2275 | { | |
9846de1b JM |
2276 | fputs_unfiltered (suffix, gdb_stdlog); |
2277 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2278 | } |
2279 | } | |
2280 | ||
2281 | ||
2282 | /* Print a variable number of ARGS using format FORMAT. If this | |
2283 | information is going to put the amount written (since the last call | |
2284 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2285 | call prompt_for_continue to get the users permision to continue. | |
2286 | ||
2287 | Unlike fprintf, this function does not return a value. | |
2288 | ||
2289 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2290 | fprintf (takes a stream to write on), and printf (the usual). | |
2291 | ||
2292 | Note also that a longjmp to top level may occur in this routine | |
2293 | (since prompt_for_continue may do so) so this routine should not be | |
2294 | called when cleanups are not in place. */ | |
2295 | ||
2296 | static void | |
fba45db2 KB |
2297 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2298 | va_list args, int filter) | |
c906108c SS |
2299 | { |
2300 | char *linebuffer; | |
2301 | struct cleanup *old_cleanups; | |
2302 | ||
e623b504 | 2303 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2304 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2305 | fputs_maybe_filtered (linebuffer, stream, filter); |
2306 | do_cleanups (old_cleanups); | |
2307 | } | |
2308 | ||
2309 | ||
2310 | void | |
fba45db2 | 2311 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2312 | { |
2313 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2314 | } | |
2315 | ||
2316 | void | |
fba45db2 | 2317 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2318 | { |
2319 | char *linebuffer; | |
2320 | struct cleanup *old_cleanups; | |
2321 | ||
e623b504 | 2322 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2323 | old_cleanups = make_cleanup (xfree, linebuffer); |
75feb17d DJ |
2324 | if (debug_timestamp && stream == gdb_stdlog) |
2325 | { | |
2326 | struct timeval tm; | |
2327 | char *timestamp; | |
6e5abd65 | 2328 | int len, need_nl; |
75feb17d DJ |
2329 | |
2330 | gettimeofday (&tm, NULL); | |
6e5abd65 PA |
2331 | |
2332 | len = strlen (linebuffer); | |
2333 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); | |
2334 | ||
2335 | timestamp = xstrprintf ("%ld:%ld %s%s", | |
2336 | (long) tm.tv_sec, (long) tm.tv_usec, | |
2337 | linebuffer, | |
2338 | need_nl ? "\n": ""); | |
75feb17d DJ |
2339 | make_cleanup (xfree, timestamp); |
2340 | fputs_unfiltered (timestamp, stream); | |
2341 | } | |
6e5abd65 PA |
2342 | else |
2343 | fputs_unfiltered (linebuffer, stream); | |
c906108c SS |
2344 | do_cleanups (old_cleanups); |
2345 | } | |
2346 | ||
2347 | void | |
fba45db2 | 2348 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2349 | { |
2350 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2351 | } | |
2352 | ||
2353 | void | |
fba45db2 | 2354 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2355 | { |
2356 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2357 | } | |
2358 | ||
c906108c | 2359 | void |
8731e58e | 2360 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2361 | { |
2362 | va_list args; | |
e0627e85 | 2363 | |
c906108c | 2364 | va_start (args, format); |
c906108c SS |
2365 | vfprintf_filtered (stream, format, args); |
2366 | va_end (args); | |
2367 | } | |
2368 | ||
c906108c | 2369 | void |
8731e58e | 2370 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2371 | { |
2372 | va_list args; | |
e0627e85 | 2373 | |
c906108c | 2374 | va_start (args, format); |
c906108c SS |
2375 | vfprintf_unfiltered (stream, format, args); |
2376 | va_end (args); | |
2377 | } | |
2378 | ||
2379 | /* Like fprintf_filtered, but prints its result indented. | |
2380 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2381 | ||
c906108c | 2382 | void |
8731e58e AC |
2383 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2384 | ...) | |
c906108c SS |
2385 | { |
2386 | va_list args; | |
e0627e85 | 2387 | |
c906108c | 2388 | va_start (args, format); |
c906108c SS |
2389 | print_spaces_filtered (spaces, stream); |
2390 | ||
2391 | vfprintf_filtered (stream, format, args); | |
2392 | va_end (args); | |
2393 | } | |
2394 | ||
2395 | ||
c906108c | 2396 | void |
8731e58e | 2397 | printf_filtered (const char *format, ...) |
c906108c SS |
2398 | { |
2399 | va_list args; | |
e0627e85 | 2400 | |
c906108c | 2401 | va_start (args, format); |
c906108c SS |
2402 | vfprintf_filtered (gdb_stdout, format, args); |
2403 | va_end (args); | |
2404 | } | |
2405 | ||
2406 | ||
c906108c | 2407 | void |
8731e58e | 2408 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2409 | { |
2410 | va_list args; | |
e0627e85 | 2411 | |
c906108c | 2412 | va_start (args, format); |
c906108c SS |
2413 | vfprintf_unfiltered (gdb_stdout, format, args); |
2414 | va_end (args); | |
2415 | } | |
2416 | ||
2417 | /* Like printf_filtered, but prints it's result indented. | |
2418 | Called as printfi_filtered (spaces, format, ...); */ | |
2419 | ||
c906108c | 2420 | void |
8731e58e | 2421 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2422 | { |
2423 | va_list args; | |
e0627e85 | 2424 | |
c906108c | 2425 | va_start (args, format); |
c906108c SS |
2426 | print_spaces_filtered (spaces, gdb_stdout); |
2427 | vfprintf_filtered (gdb_stdout, format, args); | |
2428 | va_end (args); | |
2429 | } | |
2430 | ||
2431 | /* Easy -- but watch out! | |
2432 | ||
2433 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2434 | This one doesn't, and had better not! */ | |
2435 | ||
2436 | void | |
fba45db2 | 2437 | puts_filtered (const char *string) |
c906108c SS |
2438 | { |
2439 | fputs_filtered (string, gdb_stdout); | |
2440 | } | |
2441 | ||
2442 | void | |
fba45db2 | 2443 | puts_unfiltered (const char *string) |
c906108c SS |
2444 | { |
2445 | fputs_unfiltered (string, gdb_stdout); | |
2446 | } | |
2447 | ||
2448 | /* Return a pointer to N spaces and a null. The pointer is good | |
2449 | until the next call to here. */ | |
2450 | char * | |
fba45db2 | 2451 | n_spaces (int n) |
c906108c | 2452 | { |
392a587b JM |
2453 | char *t; |
2454 | static char *spaces = 0; | |
2455 | static int max_spaces = -1; | |
c906108c SS |
2456 | |
2457 | if (n > max_spaces) | |
2458 | { | |
2459 | if (spaces) | |
b8c9b27d | 2460 | xfree (spaces); |
c5aa993b JM |
2461 | spaces = (char *) xmalloc (n + 1); |
2462 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2463 | *--t = ' '; |
2464 | spaces[n] = '\0'; | |
2465 | max_spaces = n; | |
2466 | } | |
2467 | ||
2468 | return spaces + max_spaces - n; | |
2469 | } | |
2470 | ||
2471 | /* Print N spaces. */ | |
2472 | void | |
fba45db2 | 2473 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2474 | { |
2475 | fputs_filtered (n_spaces (n), stream); | |
2476 | } | |
2477 | \f | |
4a351cef | 2478 | /* C++/ObjC demangler stuff. */ |
c906108c | 2479 | |
389e51db AC |
2480 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2481 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2482 | If the name is not mangled, or the language for the name is unknown, or | |
581e13c1 | 2483 | demangling is off, the name is printed in its "raw" form. */ |
c906108c SS |
2484 | |
2485 | void | |
0d5cff50 | 2486 | fprintf_symbol_filtered (struct ui_file *stream, const char *name, |
8731e58e | 2487 | enum language lang, int arg_mode) |
c906108c SS |
2488 | { |
2489 | char *demangled; | |
2490 | ||
2491 | if (name != NULL) | |
2492 | { | |
2493 | /* If user wants to see raw output, no problem. */ | |
2494 | if (!demangle) | |
2495 | { | |
2496 | fputs_filtered (name, stream); | |
2497 | } | |
2498 | else | |
2499 | { | |
9a3d7dfd | 2500 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2501 | fputs_filtered (demangled ? demangled : name, stream); |
2502 | if (demangled != NULL) | |
2503 | { | |
b8c9b27d | 2504 | xfree (demangled); |
c906108c SS |
2505 | } |
2506 | } | |
2507 | } | |
2508 | } | |
2509 | ||
2510 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2511 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2512 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2513 | |
c906108c SS |
2514 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2515 | This "feature" is useful when searching for matching C++ function names | |
2516 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
581e13c1 | 2517 | function). */ |
c906108c SS |
2518 | |
2519 | int | |
fba45db2 | 2520 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2521 | { |
2522 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2523 | { | |
2524 | while (isspace (*string1)) | |
2525 | { | |
2526 | string1++; | |
2527 | } | |
2528 | while (isspace (*string2)) | |
2529 | { | |
2530 | string2++; | |
2531 | } | |
559a7a62 JK |
2532 | if (case_sensitivity == case_sensitive_on && *string1 != *string2) |
2533 | break; | |
2534 | if (case_sensitivity == case_sensitive_off | |
2535 | && (tolower ((unsigned char) *string1) | |
2536 | != tolower ((unsigned char) *string2))) | |
2537 | break; | |
c906108c SS |
2538 | if (*string1 != '\0') |
2539 | { | |
2540 | string1++; | |
2541 | string2++; | |
2542 | } | |
2543 | } | |
2544 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2545 | } | |
2de7ced7 | 2546 | |
0fe19209 DC |
2547 | /* This is like strcmp except that it ignores whitespace and treats |
2548 | '(' as the first non-NULL character in terms of ordering. Like | |
2549 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2550 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2551 | according to that ordering. | |
2552 | ||
2553 | If a list is sorted according to this function and if you want to | |
2554 | find names in the list that match some fixed NAME according to | |
2555 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2556 | where this function would put NAME. | |
2557 | ||
559a7a62 JK |
2558 | This function must be neutral to the CASE_SENSITIVITY setting as the user |
2559 | may choose it during later lookup. Therefore this function always sorts | |
2560 | primarily case-insensitively and secondarily case-sensitively. | |
2561 | ||
0fe19209 DC |
2562 | Here are some examples of why using strcmp to sort is a bad idea: |
2563 | ||
2564 | Whitespace example: | |
2565 | ||
2566 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2567 | we try to do a search for "foo<char*>", strcmp will locate this | |
2568 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2569 | will start looking at strings beginning with "goo", and will never | |
2570 | see the correct match of "foo<char *>". | |
2571 | ||
2572 | Parenthesis example: | |
2573 | ||
2574 | In practice, this is less like to be an issue, but I'll give it a | |
2575 | shot. Let's assume that '$' is a legitimate character to occur in | |
2576 | symbols. (Which may well even be the case on some systems.) Then | |
2577 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2578 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2579 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2580 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2581 | "foo") is false, so it won't proceed to the actual match of | |
2582 | "foo(int)" with "foo". */ | |
2583 | ||
2584 | int | |
2585 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2586 | { | |
559a7a62 JK |
2587 | const char *saved_string1 = string1, *saved_string2 = string2; |
2588 | enum case_sensitivity case_pass = case_sensitive_off; | |
2589 | ||
2590 | for (;;) | |
0fe19209 | 2591 | { |
b11b1f88 JK |
2592 | /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'. |
2593 | Provide stub characters if we are already at the end of one of the | |
2594 | strings. */ | |
2595 | char c1 = 'X', c2 = 'X'; | |
2596 | ||
2597 | while (*string1 != '\0' && *string2 != '\0') | |
0fe19209 | 2598 | { |
b11b1f88 JK |
2599 | while (isspace (*string1)) |
2600 | string1++; | |
2601 | while (isspace (*string2)) | |
2602 | string2++; | |
2603 | ||
559a7a62 JK |
2604 | switch (case_pass) |
2605 | { | |
2606 | case case_sensitive_off: | |
2607 | c1 = tolower ((unsigned char) *string1); | |
2608 | c2 = tolower ((unsigned char) *string2); | |
2609 | break; | |
2610 | case case_sensitive_on: | |
b11b1f88 JK |
2611 | c1 = *string1; |
2612 | c2 = *string2; | |
559a7a62 JK |
2613 | break; |
2614 | } | |
b11b1f88 JK |
2615 | if (c1 != c2) |
2616 | break; | |
2617 | ||
2618 | if (*string1 != '\0') | |
2619 | { | |
2620 | string1++; | |
2621 | string2++; | |
2622 | } | |
0fe19209 | 2623 | } |
b11b1f88 JK |
2624 | |
2625 | switch (*string1) | |
0fe19209 | 2626 | { |
b11b1f88 JK |
2627 | /* Characters are non-equal unless they're both '\0'; we want to |
2628 | make sure we get the comparison right according to our | |
2629 | comparison in the cases where one of them is '\0' or '('. */ | |
2630 | case '\0': | |
2631 | if (*string2 == '\0') | |
559a7a62 | 2632 | break; |
b11b1f88 JK |
2633 | else |
2634 | return -1; | |
2635 | case '(': | |
2636 | if (*string2 == '\0') | |
2637 | return 1; | |
2638 | else | |
2639 | return -1; | |
2640 | default: | |
2641 | if (*string2 == '\0' || *string2 == '(') | |
2642 | return 1; | |
559a7a62 JK |
2643 | else if (c1 > c2) |
2644 | return 1; | |
2645 | else if (c1 < c2) | |
2646 | return -1; | |
2647 | /* PASSTHRU */ | |
0fe19209 | 2648 | } |
559a7a62 JK |
2649 | |
2650 | if (case_pass == case_sensitive_on) | |
2651 | return 0; | |
2652 | ||
2653 | /* Otherwise the strings were equal in case insensitive way, make | |
2654 | a more fine grained comparison in a case sensitive way. */ | |
2655 | ||
2656 | case_pass = case_sensitive_on; | |
2657 | string1 = saved_string1; | |
2658 | string2 = saved_string2; | |
0fe19209 | 2659 | } |
0fe19209 DC |
2660 | } |
2661 | ||
2de7ced7 DJ |
2662 | /* A simple comparison function with opposite semantics to strcmp. */ |
2663 | ||
2664 | int | |
2665 | streq (const char *lhs, const char *rhs) | |
2666 | { | |
2667 | return !strcmp (lhs, rhs); | |
2668 | } | |
c906108c | 2669 | \f |
c5aa993b | 2670 | |
c906108c | 2671 | /* |
c5aa993b JM |
2672 | ** subset_compare() |
2673 | ** Answer whether string_to_compare is a full or partial match to | |
2674 | ** template_string. The partial match must be in sequence starting | |
2675 | ** at index 0. | |
2676 | */ | |
c906108c | 2677 | int |
fba45db2 | 2678 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
2679 | { |
2680 | int match; | |
e0627e85 | 2681 | |
8731e58e AC |
2682 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
2683 | && strlen (string_to_compare) <= strlen (template_string)) | |
2684 | match = | |
2685 | (strncmp | |
2686 | (template_string, string_to_compare, strlen (string_to_compare)) == 0); | |
7a292a7a SS |
2687 | else |
2688 | match = 0; | |
2689 | return match; | |
2690 | } | |
c906108c | 2691 | |
7a292a7a | 2692 | static void |
fba45db2 | 2693 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
2694 | { |
2695 | pagination_enabled = 1; | |
2696 | } | |
2697 | ||
7a292a7a | 2698 | static void |
fba45db2 | 2699 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
2700 | { |
2701 | pagination_enabled = 0; | |
2702 | } | |
75feb17d DJ |
2703 | |
2704 | static void | |
2705 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
2706 | struct cmd_list_element *c, const char *value) | |
2707 | { | |
3e43a32a MS |
2708 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), |
2709 | value); | |
75feb17d | 2710 | } |
c906108c | 2711 | \f |
c5aa993b | 2712 | |
c906108c | 2713 | void |
fba45db2 | 2714 | initialize_utils (void) |
c906108c | 2715 | { |
35096d9d | 2716 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
77dec115 EZ |
2717 | Set number of characters where GDB should wrap lines of its output."), _("\ |
2718 | Show number of characters where GDB should wrap lines of its output."), _("\ | |
2719 | This affects where GDB wraps its output to fit the screen width.\n\ | |
f81d1120 | 2720 | Setting this to \"unlimited\" or zero prevents GDB from wrapping its output."), |
35096d9d | 2721 | set_width_command, |
920d2a44 | 2722 | show_chars_per_line, |
35096d9d AC |
2723 | &setlist, &showlist); |
2724 | ||
2725 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
77dec115 EZ |
2726 | Set number of lines in a page for GDB output pagination."), _("\ |
2727 | Show number of lines in a page for GDB output pagination."), _("\ | |
2728 | This affects the number of lines after which GDB will pause\n\ | |
2729 | its output and ask you whether to continue.\n\ | |
f81d1120 | 2730 | Setting this to \"unlimited\" or zero causes GDB never pause during output."), |
35096d9d | 2731 | set_height_command, |
920d2a44 | 2732 | show_lines_per_page, |
35096d9d | 2733 | &setlist, &showlist); |
c5aa993b | 2734 | |
c906108c SS |
2735 | init_page_info (); |
2736 | ||
5bf193a2 AC |
2737 | add_setshow_boolean_cmd ("pagination", class_support, |
2738 | &pagination_enabled, _("\ | |
77dec115 EZ |
2739 | Set state of GDB output pagination."), _("\ |
2740 | Show state of GDB output pagination."), _("\ | |
2741 | When pagination is ON, GDB pauses at end of each screenful of\n\ | |
2742 | its output and asks you whether to continue.\n\ | |
f81d1120 | 2743 | Turning pagination off is an alternative to \"set height unlimited\"."), |
5bf193a2 | 2744 | NULL, |
920d2a44 | 2745 | show_pagination_enabled, |
5bf193a2 | 2746 | &setlist, &showlist); |
4261bedc | 2747 | |
c906108c SS |
2748 | if (xdb_commands) |
2749 | { | |
c5aa993b | 2750 | add_com ("am", class_support, pagination_on_command, |
1bedd215 | 2751 | _("Enable pagination")); |
c5aa993b | 2752 | add_com ("sm", class_support, pagination_off_command, |
1bedd215 | 2753 | _("Disable pagination")); |
c906108c SS |
2754 | } |
2755 | ||
5bf193a2 AC |
2756 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, |
2757 | &sevenbit_strings, _("\ | |
2758 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
2759 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
2760 | NULL, | |
920d2a44 | 2761 | show_sevenbit_strings, |
5bf193a2 AC |
2762 | &setprintlist, &showprintlist); |
2763 | ||
75feb17d DJ |
2764 | add_setshow_boolean_cmd ("timestamp", class_maintenance, |
2765 | &debug_timestamp, _("\ | |
2766 | Set timestamping of debugging messages."), _("\ | |
2767 | Show timestamping of debugging messages."), _("\ | |
2768 | When set, debugging messages will be marked with seconds and microseconds."), | |
2769 | NULL, | |
2770 | show_debug_timestamp, | |
2771 | &setdebuglist, &showdebuglist); | |
c906108c SS |
2772 | } |
2773 | ||
66bf4b3a | 2774 | const char * |
5af949e3 | 2775 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
2776 | { |
2777 | /* Truncate address to the size of a target address, avoiding shifts | |
2778 | larger or equal than the width of a CORE_ADDR. The local | |
2779 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
581e13c1 | 2780 | when it won't occur. */ |
66bf4b3a AC |
2781 | /* NOTE: This assumes that the significant address information is |
2782 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2783 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2784 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2785 | ||
5af949e3 | 2786 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
2787 | |
2788 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2789 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2790 | return hex_string (addr); | |
2791 | } | |
2792 | ||
f1310107 TJB |
2793 | /* This function is described in "defs.h". */ |
2794 | ||
2795 | const char * | |
2796 | print_core_address (struct gdbarch *gdbarch, CORE_ADDR address) | |
2797 | { | |
2798 | int addr_bit = gdbarch_addr_bit (gdbarch); | |
2799 | ||
2800 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2801 | address &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2802 | ||
2803 | /* FIXME: cagney/2002-05-03: Need local_address_string() function | |
2804 | that returns the language localized string formatted to a width | |
2805 | based on gdbarch_addr_bit. */ | |
2806 | if (addr_bit <= 32) | |
2807 | return hex_string_custom (address, 8); | |
2808 | else | |
2809 | return hex_string_custom (address, 16); | |
2810 | } | |
2811 | ||
8e3b41a9 JK |
2812 | /* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */ |
2813 | ||
2814 | hashval_t | |
2815 | core_addr_hash (const void *ap) | |
2816 | { | |
2817 | const CORE_ADDR *addrp = ap; | |
2818 | ||
2819 | return *addrp; | |
2820 | } | |
2821 | ||
2822 | /* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */ | |
2823 | ||
2824 | int | |
2825 | core_addr_eq (const void *ap, const void *bp) | |
2826 | { | |
2827 | const CORE_ADDR *addr_ap = ap; | |
2828 | const CORE_ADDR *addr_bp = bp; | |
2829 | ||
2830 | return *addr_ap == *addr_bp; | |
2831 | } | |
2832 | ||
03dd37c3 AC |
2833 | /* Convert a string back into a CORE_ADDR. */ |
2834 | CORE_ADDR | |
2835 | string_to_core_addr (const char *my_string) | |
2836 | { | |
2837 | CORE_ADDR addr = 0; | |
9544c605 | 2838 | |
03dd37c3 AC |
2839 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
2840 | { | |
ced572fe | 2841 | /* Assume that it is in hex. */ |
03dd37c3 | 2842 | int i; |
5d502164 | 2843 | |
03dd37c3 AC |
2844 | for (i = 2; my_string[i] != '\0'; i++) |
2845 | { | |
2846 | if (isdigit (my_string[i])) | |
2847 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 2848 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
2849 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
2850 | else | |
63f06803 | 2851 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
2852 | } |
2853 | } | |
2854 | else | |
2855 | { | |
2856 | /* Assume that it is in decimal. */ | |
2857 | int i; | |
5d502164 | 2858 | |
03dd37c3 AC |
2859 | for (i = 0; my_string[i] != '\0'; i++) |
2860 | { | |
2861 | if (isdigit (my_string[i])) | |
2862 | addr = (my_string[i] - '0') + (addr * 10); | |
2863 | else | |
63f06803 | 2864 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
2865 | } |
2866 | } | |
9544c605 | 2867 | |
03dd37c3 AC |
2868 | return addr; |
2869 | } | |
58d370e0 TT |
2870 | |
2871 | char * | |
2872 | gdb_realpath (const char *filename) | |
2873 | { | |
70d35819 AC |
2874 | /* Method 1: The system has a compile time upper bound on a filename |
2875 | path. Use that and realpath() to canonicalize the name. This is | |
2876 | the most common case. Note that, if there isn't a compile time | |
2877 | upper bound, you want to avoid realpath() at all costs. */ | |
d8d2a3ee | 2878 | #if defined (HAVE_REALPATH) && defined (PATH_MAX) |
70d35819 | 2879 | { |
70d35819 | 2880 | char buf[PATH_MAX]; |
82c0260e | 2881 | const char *rp = realpath (filename, buf); |
5d502164 | 2882 | |
70d35819 AC |
2883 | if (rp == NULL) |
2884 | rp = filename; | |
2885 | return xstrdup (rp); | |
6f88d630 | 2886 | } |
a4db0f07 RH |
2887 | #endif /* HAVE_REALPATH */ |
2888 | ||
70d35819 AC |
2889 | /* Method 2: The host system (i.e., GNU) has the function |
2890 | canonicalize_file_name() which malloc's a chunk of memory and | |
2891 | returns that, use that. */ | |
2892 | #if defined(HAVE_CANONICALIZE_FILE_NAME) | |
2893 | { | |
2894 | char *rp = canonicalize_file_name (filename); | |
5d502164 | 2895 | |
70d35819 AC |
2896 | if (rp == NULL) |
2897 | return xstrdup (filename); | |
2898 | else | |
2899 | return rp; | |
2900 | } | |
58d370e0 | 2901 | #endif |
70d35819 | 2902 | |
6411e720 AC |
2903 | /* FIXME: cagney/2002-11-13: |
2904 | ||
2905 | Method 2a: Use realpath() with a NULL buffer. Some systems, due | |
7a9dd1b2 | 2906 | to the problems described in method 3, have modified their |
6411e720 AC |
2907 | realpath() implementation so that it will allocate a buffer when |
2908 | NULL is passed in. Before this can be used, though, some sort of | |
2909 | configure time test would need to be added. Otherwize the code | |
2910 | will likely core dump. */ | |
2911 | ||
70d35819 AC |
2912 | /* Method 3: Now we're getting desperate! The system doesn't have a |
2913 | compile time buffer size and no alternative function. Query the | |
2914 | OS, using pathconf(), for the buffer limit. Care is needed | |
2915 | though, some systems do not limit PATH_MAX (return -1 for | |
2916 | pathconf()) making it impossible to pass a correctly sized buffer | |
2917 | to realpath() (it could always overflow). On those systems, we | |
2918 | skip this. */ | |
8c0da261 | 2919 | #if defined (HAVE_REALPATH) && defined (_PC_PATH_MAX) && defined(HAVE_ALLOCA) |
70d35819 AC |
2920 | { |
2921 | /* Find out the max path size. */ | |
2922 | long path_max = pathconf ("/", _PC_PATH_MAX); | |
5d502164 | 2923 | |
70d35819 AC |
2924 | if (path_max > 0) |
2925 | { | |
2926 | /* PATH_MAX is bounded. */ | |
2927 | char *buf = alloca (path_max); | |
2928 | char *rp = realpath (filename, buf); | |
5d502164 | 2929 | |
70d35819 AC |
2930 | return xstrdup (rp ? rp : filename); |
2931 | } | |
2932 | } | |
2933 | #endif | |
2934 | ||
9c5e4386 JB |
2935 | /* The MS Windows method. If we don't have realpath, we assume we |
2936 | don't have symlinks and just canonicalize to a Windows absolute | |
2937 | path. GetFullPath converts ../ and ./ in relative paths to | |
2938 | absolute paths, filling in current drive if one is not given | |
2939 | or using the current directory of a specified drive (eg, "E:foo"). | |
2940 | It also converts all forward slashes to back slashes. */ | |
2941 | /* The file system is case-insensitive but case-preserving. | |
2942 | So we do not lowercase the path. Otherwise, we might not | |
2943 | be able to display the original casing in a given path. */ | |
2944 | #if defined (_WIN32) | |
2945 | { | |
2946 | char buf[MAX_PATH]; | |
2947 | DWORD len = GetFullPathName (filename, MAX_PATH, buf, NULL); | |
2948 | ||
2949 | if (len > 0 && len < MAX_PATH) | |
2950 | return xstrdup (buf); | |
2951 | } | |
2952 | #endif | |
2953 | ||
70d35819 AC |
2954 | /* This system is a lost cause, just dup the buffer. */ |
2955 | return xstrdup (filename); | |
58d370e0 | 2956 | } |
303c8ebd | 2957 | |
4856b6bc JK |
2958 | /* Return a copy of FILENAME, with its directory prefix canonicalized |
2959 | by gdb_realpath. */ | |
2960 | ||
2961 | char * | |
2962 | gdb_realpath_keepfile (const char *filename) | |
2963 | { | |
2964 | const char *base_name = lbasename (filename); | |
2965 | char *dir_name; | |
2966 | char *real_path; | |
2967 | char *result; | |
2968 | ||
2969 | /* Extract the basename of filename, and return immediately | |
2970 | a copy of filename if it does not contain any directory prefix. */ | |
2971 | if (base_name == filename) | |
2972 | return xstrdup (filename); | |
2973 | ||
2974 | dir_name = alloca ((size_t) (base_name - filename + 2)); | |
2975 | /* Allocate enough space to store the dir_name + plus one extra | |
2976 | character sometimes needed under Windows (see below), and | |
2977 | then the closing \000 character. */ | |
2978 | strncpy (dir_name, filename, base_name - filename); | |
2979 | dir_name[base_name - filename] = '\000'; | |
2980 | ||
2981 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
2982 | /* We need to be careful when filename is of the form 'd:foo', which | |
2983 | is equivalent of d:./foo, which is totally different from d:/foo. */ | |
2984 | if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':') | |
2985 | { | |
2986 | dir_name[2] = '.'; | |
2987 | dir_name[3] = '\000'; | |
2988 | } | |
2989 | #endif | |
2990 | ||
2991 | /* Canonicalize the directory prefix, and build the resulting | |
2992 | filename. If the dirname realpath already contains an ending | |
2993 | directory separator, avoid doubling it. */ | |
2994 | real_path = gdb_realpath (dir_name); | |
2995 | if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1])) | |
2996 | result = concat (real_path, base_name, (char *) NULL); | |
2997 | else | |
2998 | result = concat (real_path, SLASH_STRING, base_name, (char *) NULL); | |
2999 | ||
3000 | xfree (real_path); | |
3001 | return result; | |
3002 | } | |
3003 | ||
04affae3 JK |
3004 | /* Return PATH in absolute form, performing tilde-expansion if necessary. |
3005 | PATH cannot be NULL or the empty string. | |
3006 | This does not resolve symlinks however, use gdb_realpath for that. | |
3007 | Space for the result is allocated with malloc. | |
3008 | If the path is already absolute, it is strdup'd. | |
3009 | If there is a problem computing the absolute path, the path is returned | |
3010 | unchanged (still strdup'd). */ | |
3011 | ||
3012 | char * | |
3013 | gdb_abspath (const char *path) | |
3014 | { | |
3015 | gdb_assert (path != NULL && path[0] != '\0'); | |
3016 | ||
3017 | if (path[0] == '~') | |
3018 | return tilde_expand (path); | |
3019 | ||
3020 | if (IS_ABSOLUTE_PATH (path)) | |
3021 | return xstrdup (path); | |
3022 | ||
3023 | /* Beware the // my son, the Emacs barfs, the botch that catch... */ | |
3024 | return concat (current_directory, | |
3025 | IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1]) | |
3026 | ? "" : SLASH_STRING, | |
3027 | path, (char *) NULL); | |
3028 | } | |
3029 | ||
5b03f266 AC |
3030 | ULONGEST |
3031 | align_up (ULONGEST v, int n) | |
3032 | { | |
3033 | /* Check that N is really a power of two. */ | |
3034 | gdb_assert (n && (n & (n-1)) == 0); | |
3035 | return (v + n - 1) & -n; | |
3036 | } | |
3037 | ||
3038 | ULONGEST | |
3039 | align_down (ULONGEST v, int n) | |
3040 | { | |
3041 | /* Check that N is really a power of two. */ | |
3042 | gdb_assert (n && (n & (n-1)) == 0); | |
3043 | return (v & -n); | |
3044 | } | |
ae5a43e0 | 3045 | |
5bd1ef56 TT |
3046 | /* See utils.h. */ |
3047 | ||
3048 | LONGEST | |
3049 | gdb_sign_extend (LONGEST value, int bit) | |
3050 | { | |
3051 | gdb_assert (bit >= 1 && bit <= 8 * sizeof (LONGEST)); | |
3052 | ||
3053 | if (((value >> (bit - 1)) & 1) != 0) | |
3054 | { | |
3055 | LONGEST signbit = ((LONGEST) 1) << (bit - 1); | |
3056 | ||
3057 | value = (value ^ signbit) - signbit; | |
3058 | } | |
3059 | ||
3060 | return value; | |
3061 | } | |
3062 | ||
ae5a43e0 DJ |
3063 | /* Allocation function for the libiberty hash table which uses an |
3064 | obstack. The obstack is passed as DATA. */ | |
3065 | ||
3066 | void * | |
3067 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
3068 | { | |
3069 | unsigned int total = size * count; | |
3070 | void *ptr = obstack_alloc ((struct obstack *) data, total); | |
e0627e85 | 3071 | |
ae5a43e0 DJ |
3072 | memset (ptr, 0, total); |
3073 | return ptr; | |
3074 | } | |
3075 | ||
3076 | /* Trivial deallocation function for the libiberty splay tree and hash | |
3077 | table - don't deallocate anything. Rely on later deletion of the | |
3078 | obstack. DATA will be the obstack, although it is not needed | |
3079 | here. */ | |
3080 | ||
3081 | void | |
3082 | dummy_obstack_deallocate (void *object, void *data) | |
3083 | { | |
3084 | return; | |
3085 | } | |
253c8abb DJ |
3086 | |
3087 | /* The bit offset of the highest byte in a ULONGEST, for overflow | |
3088 | checking. */ | |
3089 | ||
3090 | #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT) | |
3091 | ||
3092 | /* True (non-zero) iff DIGIT is a valid digit in radix BASE, | |
3093 | where 2 <= BASE <= 36. */ | |
3094 | ||
3095 | static int | |
3096 | is_digit_in_base (unsigned char digit, int base) | |
3097 | { | |
3098 | if (!isalnum (digit)) | |
3099 | return 0; | |
3100 | if (base <= 10) | |
3101 | return (isdigit (digit) && digit < base + '0'); | |
3102 | else | |
3103 | return (isdigit (digit) || tolower (digit) < base - 10 + 'a'); | |
3104 | } | |
3105 | ||
3106 | static int | |
3107 | digit_to_int (unsigned char c) | |
3108 | { | |
3109 | if (isdigit (c)) | |
3110 | return c - '0'; | |
3111 | else | |
3112 | return tolower (c) - 'a' + 10; | |
3113 | } | |
3114 | ||
3115 | /* As for strtoul, but for ULONGEST results. */ | |
3116 | ||
3117 | ULONGEST | |
3118 | strtoulst (const char *num, const char **trailer, int base) | |
3119 | { | |
3120 | unsigned int high_part; | |
3121 | ULONGEST result; | |
3122 | int minus = 0; | |
3123 | int i = 0; | |
3124 | ||
3125 | /* Skip leading whitespace. */ | |
3126 | while (isspace (num[i])) | |
3127 | i++; | |
3128 | ||
3129 | /* Handle prefixes. */ | |
3130 | if (num[i] == '+') | |
3131 | i++; | |
3132 | else if (num[i] == '-') | |
3133 | { | |
3134 | minus = 1; | |
3135 | i++; | |
3136 | } | |
3137 | ||
3138 | if (base == 0 || base == 16) | |
3139 | { | |
3140 | if (num[i] == '0' && (num[i + 1] == 'x' || num[i + 1] == 'X')) | |
3141 | { | |
3142 | i += 2; | |
3143 | if (base == 0) | |
3144 | base = 16; | |
3145 | } | |
3146 | } | |
3147 | ||
3148 | if (base == 0 && num[i] == '0') | |
3149 | base = 8; | |
3150 | ||
3151 | if (base == 0) | |
3152 | base = 10; | |
3153 | ||
3154 | if (base < 2 || base > 36) | |
3155 | { | |
3156 | errno = EINVAL; | |
3157 | return 0; | |
3158 | } | |
3159 | ||
3160 | result = high_part = 0; | |
3161 | for (; is_digit_in_base (num[i], base); i += 1) | |
3162 | { | |
3163 | result = result * base + digit_to_int (num[i]); | |
3164 | high_part = high_part * base + (unsigned int) (result >> HIGH_BYTE_POSN); | |
3165 | result &= ((ULONGEST) 1 << HIGH_BYTE_POSN) - 1; | |
3166 | if (high_part > 0xff) | |
3167 | { | |
3168 | errno = ERANGE; | |
3169 | result = ~ (ULONGEST) 0; | |
3170 | high_part = 0; | |
3171 | minus = 0; | |
3172 | break; | |
3173 | } | |
3174 | } | |
3175 | ||
3176 | if (trailer != NULL) | |
3177 | *trailer = &num[i]; | |
3178 | ||
3179 | result = result + ((ULONGEST) high_part << HIGH_BYTE_POSN); | |
3180 | if (minus) | |
3181 | return -result; | |
3182 | else | |
3183 | return result; | |
3184 | } | |
e1024ff1 DJ |
3185 | |
3186 | /* Simple, portable version of dirname that does not modify its | |
3187 | argument. */ | |
3188 | ||
3189 | char * | |
3190 | ldirname (const char *filename) | |
3191 | { | |
3192 | const char *base = lbasename (filename); | |
3193 | char *dirname; | |
3194 | ||
3195 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
3196 | --base; | |
3197 | ||
3198 | if (base == filename) | |
3199 | return NULL; | |
3200 | ||
3201 | dirname = xmalloc (base - filename + 2); | |
3202 | memcpy (dirname, filename, base - filename); | |
3203 | ||
3204 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
3205 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
3206 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
3207 | && !IS_DIR_SEPARATOR (filename[0])) | |
3208 | dirname[base++ - filename] = '.'; | |
3209 | ||
3210 | dirname[base - filename] = '\0'; | |
3211 | return dirname; | |
3212 | } | |
d1a41061 PP |
3213 | |
3214 | /* Call libiberty's buildargv, and return the result. | |
3215 | If buildargv fails due to out-of-memory, call nomem. | |
3216 | Therefore, the returned value is guaranteed to be non-NULL, | |
3217 | unless the parameter itself is NULL. */ | |
3218 | ||
3219 | char ** | |
3220 | gdb_buildargv (const char *s) | |
3221 | { | |
3222 | char **argv = buildargv (s); | |
e0627e85 | 3223 | |
d1a41061 | 3224 | if (s != NULL && argv == NULL) |
d26e3629 | 3225 | malloc_failure (0); |
d1a41061 PP |
3226 | return argv; |
3227 | } | |
3c16cced | 3228 | |
dc146f7c VP |
3229 | int |
3230 | compare_positive_ints (const void *ap, const void *bp) | |
3231 | { | |
3232 | /* Because we know we're comparing two ints which are positive, | |
3233 | there's no danger of overflow here. */ | |
3234 | return * (int *) ap - * (int *) bp; | |
3235 | } | |
3236 | ||
f8eba3c6 TT |
3237 | /* String compare function for qsort. */ |
3238 | ||
3239 | int | |
3240 | compare_strings (const void *arg1, const void *arg2) | |
3241 | { | |
3242 | const char **s1 = (const char **) arg1; | |
3243 | const char **s2 = (const char **) arg2; | |
3244 | ||
3245 | return strcmp (*s1, *s2); | |
3246 | } | |
3247 | ||
d18b8b7a | 3248 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3e43a32a MS |
3249 | #define AMBIGUOUS_MESS2 \ |
3250 | ".\nUse \"set gnutarget format-name\" to specify the format." | |
d18b8b7a HZ |
3251 | |
3252 | const char * | |
3253 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) | |
3254 | { | |
3255 | char *ret, *retp; | |
3256 | int ret_len; | |
3257 | char **p; | |
3258 | ||
3259 | /* Check if errmsg just need simple return. */ | |
3260 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
3261 | return bfd_errmsg (error_tag); | |
3262 | ||
3263 | ret_len = strlen (bfd_errmsg (error_tag)) + strlen (AMBIGUOUS_MESS1) | |
3264 | + strlen (AMBIGUOUS_MESS2); | |
3265 | for (p = matching; *p; p++) | |
3266 | ret_len += strlen (*p) + 1; | |
3267 | ret = xmalloc (ret_len + 1); | |
3268 | retp = ret; | |
3269 | make_cleanup (xfree, ret); | |
3270 | ||
3271 | strcpy (retp, bfd_errmsg (error_tag)); | |
3272 | retp += strlen (retp); | |
3273 | ||
3274 | strcpy (retp, AMBIGUOUS_MESS1); | |
3275 | retp += strlen (retp); | |
3276 | ||
3277 | for (p = matching; *p; p++) | |
3278 | { | |
3279 | sprintf (retp, " %s", *p); | |
3280 | retp += strlen (retp); | |
3281 | } | |
3282 | xfree (matching); | |
3283 | ||
3284 | strcpy (retp, AMBIGUOUS_MESS2); | |
3285 | ||
3286 | return ret; | |
3287 | } | |
3288 | ||
74164c56 JK |
3289 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
3290 | ||
3291 | int | |
c0939df1 | 3292 | parse_pid_to_attach (const char *args) |
74164c56 JK |
3293 | { |
3294 | unsigned long pid; | |
3295 | char *dummy; | |
3296 | ||
3297 | if (!args) | |
3298 | error_no_arg (_("process-id to attach")); | |
3299 | ||
c0939df1 | 3300 | dummy = (char *) args; |
74164c56 JK |
3301 | pid = strtoul (args, &dummy, 0); |
3302 | /* Some targets don't set errno on errors, grrr! */ | |
3303 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
3304 | error (_("Illegal process-id: %s."), args); | |
3305 | ||
3306 | return pid; | |
3307 | } | |
3308 | ||
353d1d73 JK |
3309 | /* Helper for make_bpstat_clear_actions_cleanup. */ |
3310 | ||
3311 | static void | |
3312 | do_bpstat_clear_actions_cleanup (void *unused) | |
3313 | { | |
3314 | bpstat_clear_actions (); | |
3315 | } | |
3316 | ||
3317 | /* Call bpstat_clear_actions for the case an exception is throw. You should | |
3318 | discard_cleanups if no exception is caught. */ | |
3319 | ||
3320 | struct cleanup * | |
3321 | make_bpstat_clear_actions_cleanup (void) | |
3322 | { | |
3323 | return make_cleanup (do_bpstat_clear_actions_cleanup, NULL); | |
3324 | } | |
3325 | ||
df15bd07 JK |
3326 | /* Check for GCC >= 4.x according to the symtab->producer string. Return minor |
3327 | version (x) of 4.x in such case. If it is not GCC or it is GCC older than | |
3328 | 4.x return -1. If it is GCC 5.x or higher return INT_MAX. */ | |
3329 | ||
3330 | int | |
3331 | producer_is_gcc_ge_4 (const char *producer) | |
3332 | { | |
3333 | const char *cs; | |
3334 | int major, minor; | |
3335 | ||
3336 | if (producer == NULL) | |
3337 | { | |
3338 | /* For unknown compilers expect their behavior is not compliant. For GCC | |
3339 | this case can also happen for -gdwarf-4 type units supported since | |
3340 | gcc-4.5. */ | |
3341 | ||
3342 | return -1; | |
3343 | } | |
3344 | ||
3345 | /* Skip any identifier after "GNU " - such as "C++" or "Java". */ | |
3346 | ||
3347 | if (strncmp (producer, "GNU ", strlen ("GNU ")) != 0) | |
3348 | { | |
3349 | /* For non-GCC compilers expect their behavior is not compliant. */ | |
3350 | ||
3351 | return -1; | |
3352 | } | |
3353 | cs = &producer[strlen ("GNU ")]; | |
3354 | while (*cs && !isdigit (*cs)) | |
3355 | cs++; | |
3356 | if (sscanf (cs, "%d.%d", &major, &minor) != 2) | |
3357 | { | |
3358 | /* Not recognized as GCC. */ | |
3359 | ||
3360 | return -1; | |
3361 | } | |
3362 | ||
3363 | if (major < 4) | |
3364 | return -1; | |
3365 | if (major > 4) | |
3366 | return INT_MAX; | |
3367 | return minor; | |
3368 | } | |
3369 | ||
e4ab2fad JK |
3370 | /* Helper for make_cleanup_free_char_ptr_vec. */ |
3371 | ||
3372 | static void | |
3373 | do_free_char_ptr_vec (void *arg) | |
3374 | { | |
3375 | VEC (char_ptr) *char_ptr_vec = arg; | |
3376 | ||
3377 | free_char_ptr_vec (char_ptr_vec); | |
3378 | } | |
3379 | ||
3380 | /* Make cleanup handler calling xfree for each element of CHAR_PTR_VEC and | |
3381 | final VEC_free for CHAR_PTR_VEC itself. | |
3382 | ||
3383 | You must not modify CHAR_PTR_VEC after this cleanup registration as the | |
3384 | CHAR_PTR_VEC base address may change on its updates. Contrary to VEC_free | |
3385 | this function does not (cannot) clear the pointer. */ | |
3386 | ||
3387 | struct cleanup * | |
3388 | make_cleanup_free_char_ptr_vec (VEC (char_ptr) *char_ptr_vec) | |
3389 | { | |
3390 | return make_cleanup (do_free_char_ptr_vec, char_ptr_vec); | |
3391 | } | |
3392 | ||
6dea1fbd JK |
3393 | /* Substitute all occurences of string FROM by string TO in *STRINGP. *STRINGP |
3394 | must come from xrealloc-compatible allocator and it may be updated. FROM | |
1564a261 JK |
3395 | needs to be delimited by IS_DIR_SEPARATOR or DIRNAME_SEPARATOR (or be |
3396 | located at the start or end of *STRINGP. */ | |
6dea1fbd JK |
3397 | |
3398 | void | |
3399 | substitute_path_component (char **stringp, const char *from, const char *to) | |
3400 | { | |
3401 | char *string = *stringp, *s; | |
3402 | const size_t from_len = strlen (from); | |
3403 | const size_t to_len = strlen (to); | |
3404 | ||
3405 | for (s = string;;) | |
3406 | { | |
3407 | s = strstr (s, from); | |
3408 | if (s == NULL) | |
3409 | break; | |
3410 | ||
1564a261 JK |
3411 | if ((s == string || IS_DIR_SEPARATOR (s[-1]) |
3412 | || s[-1] == DIRNAME_SEPARATOR) | |
3413 | && (s[from_len] == '\0' || IS_DIR_SEPARATOR (s[from_len]) | |
3414 | || s[from_len] == DIRNAME_SEPARATOR)) | |
6dea1fbd JK |
3415 | { |
3416 | char *string_new; | |
3417 | ||
3418 | string_new = xrealloc (string, (strlen (string) + to_len + 1)); | |
3419 | ||
3420 | /* Relocate the current S pointer. */ | |
3421 | s = s - string + string_new; | |
3422 | string = string_new; | |
3423 | ||
3424 | /* Replace from by to. */ | |
3425 | memmove (&s[to_len], &s[from_len], strlen (&s[from_len]) + 1); | |
3426 | memcpy (s, to, to_len); | |
3427 | ||
3428 | s += to_len; | |
3429 | } | |
3430 | else | |
3431 | s++; | |
3432 | } | |
3433 | ||
3434 | *stringp = string; | |
3435 | } | |
3436 | ||
0b6cb71e DE |
3437 | #ifdef HAVE_WAITPID |
3438 | ||
3439 | #ifdef SIGALRM | |
3440 | ||
3441 | /* SIGALRM handler for waitpid_with_timeout. */ | |
3442 | ||
3443 | static void | |
3444 | sigalrm_handler (int signo) | |
3445 | { | |
3446 | /* Nothing to do. */ | |
3447 | } | |
3448 | ||
3449 | #endif | |
3450 | ||
3451 | /* Wrapper to wait for child PID to die with TIMEOUT. | |
3452 | TIMEOUT is the time to stop waiting in seconds. | |
3453 | If TIMEOUT is zero, pass WNOHANG to waitpid. | |
3454 | Returns PID if it was successfully waited for, otherwise -1. | |
3455 | ||
3456 | Timeouts are currently implemented with alarm and SIGALRM. | |
3457 | If the host does not support them, this waits "forever". | |
3458 | It would be odd though for a host to have waitpid and not SIGALRM. */ | |
3459 | ||
3460 | pid_t | |
3461 | wait_to_die_with_timeout (pid_t pid, int *status, int timeout) | |
3462 | { | |
3463 | pid_t waitpid_result; | |
3464 | ||
3465 | gdb_assert (pid > 0); | |
3466 | gdb_assert (timeout >= 0); | |
3467 | ||
3468 | if (timeout > 0) | |
3469 | { | |
3470 | #ifdef SIGALRM | |
3471 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3472 | struct sigaction sa, old_sa; | |
3473 | ||
3474 | sa.sa_handler = sigalrm_handler; | |
3475 | sigemptyset (&sa.sa_mask); | |
3476 | sa.sa_flags = 0; | |
3477 | sigaction (SIGALRM, &sa, &old_sa); | |
3478 | #else | |
3479 | void (*ofunc) (); | |
3480 | ||
3481 | ofunc = (void (*)()) signal (SIGALRM, sigalrm_handler); | |
3482 | #endif | |
3483 | ||
3484 | alarm (timeout); | |
3485 | #endif | |
3486 | ||
3487 | waitpid_result = waitpid (pid, status, 0); | |
3488 | ||
3489 | #ifdef SIGALRM | |
3490 | alarm (0); | |
3491 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3492 | sigaction (SIGALRM, &old_sa, NULL); | |
3493 | #else | |
3494 | signal (SIGALRM, ofunc); | |
3495 | #endif | |
3496 | #endif | |
3497 | } | |
3498 | else | |
3499 | waitpid_result = waitpid (pid, status, WNOHANG); | |
3500 | ||
3501 | if (waitpid_result == pid) | |
3502 | return pid; | |
3503 | else | |
3504 | return -1; | |
3505 | } | |
3506 | ||
3507 | #endif /* HAVE_WAITPID */ | |
3508 | ||
202cbf1c JK |
3509 | /* Provide fnmatch compatible function for FNM_FILE_NAME matching of host files. |
3510 | Both FNM_FILE_NAME and FNM_NOESCAPE must be set in FLAGS. | |
3511 | ||
3512 | It handles correctly HAVE_DOS_BASED_FILE_SYSTEM and | |
3513 | HAVE_CASE_INSENSITIVE_FILE_SYSTEM. */ | |
3514 | ||
3515 | int | |
3516 | gdb_filename_fnmatch (const char *pattern, const char *string, int flags) | |
3517 | { | |
3518 | gdb_assert ((flags & FNM_FILE_NAME) != 0); | |
3519 | ||
3520 | /* It is unclear how '\' escaping vs. directory separator should coexist. */ | |
3521 | gdb_assert ((flags & FNM_NOESCAPE) != 0); | |
3522 | ||
3523 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3524 | { | |
3525 | char *pattern_slash, *string_slash; | |
3526 | ||
3527 | /* Replace '\' by '/' in both strings. */ | |
3528 | ||
3529 | pattern_slash = alloca (strlen (pattern) + 1); | |
3530 | strcpy (pattern_slash, pattern); | |
3531 | pattern = pattern_slash; | |
3532 | for (; *pattern_slash != 0; pattern_slash++) | |
3533 | if (IS_DIR_SEPARATOR (*pattern_slash)) | |
3534 | *pattern_slash = '/'; | |
3535 | ||
3536 | string_slash = alloca (strlen (string) + 1); | |
3537 | strcpy (string_slash, string); | |
3538 | string = string_slash; | |
3539 | for (; *string_slash != 0; string_slash++) | |
3540 | if (IS_DIR_SEPARATOR (*string_slash)) | |
3541 | *string_slash = '/'; | |
3542 | } | |
3543 | #endif /* HAVE_DOS_BASED_FILE_SYSTEM */ | |
3544 | ||
3545 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
3546 | flags |= FNM_CASEFOLD; | |
3547 | #endif /* HAVE_CASE_INSENSITIVE_FILE_SYSTEM */ | |
3548 | ||
3549 | return fnmatch (pattern, string, flags); | |
3550 | } | |
3551 | ||
2c0b251b PA |
3552 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
3553 | extern initialize_file_ftype _initialize_utils; | |
3554 | ||
3c16cced PA |
3555 | void |
3556 | _initialize_utils (void) | |
3557 | { | |
3558 | add_internal_problem_command (&internal_error_problem); | |
3559 | add_internal_problem_command (&internal_warning_problem); | |
57fcfb1b | 3560 | add_internal_problem_command (&demangler_warning_problem); |
3c16cced | 3561 | } |