Commit | Line | Data |
---|---|---|
c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
1bac305b | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, |
0fb0cc75 | 4 | 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, |
7b6bb8da | 5 | 2009, 2010, 2011 Free Software Foundation, Inc. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c | 21 | |
4e8f7a8b DJ |
22 | #include "defs.h" |
23 | #include "gdb_assert.h" | |
24 | #include <ctype.h> | |
25 | #include "gdb_string.h" | |
26 | #include "event-top.h" | |
60250e8b | 27 | #include "exceptions.h" |
95e54da7 | 28 | #include "gdbthread.h" |
7991dee7 JK |
29 | #ifdef HAVE_SYS_RESOURCE_H |
30 | #include <sys/resource.h> | |
31 | #endif /* HAVE_SYS_RESOURCE_H */ | |
4e8f7a8b | 32 | |
6a83354a AC |
33 | #ifdef TUI |
34 | #include "tui/tui.h" /* For tui_get_command_dimension. */ | |
35 | #endif | |
36 | ||
9d271fd8 AC |
37 | #ifdef __GO32__ |
38 | #include <pc.h> | |
39 | #endif | |
40 | ||
581e13c1 | 41 | /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */ |
c906108c SS |
42 | #ifdef reg |
43 | #undef reg | |
44 | #endif | |
45 | ||
042be3a9 | 46 | #include <signal.h> |
c906108c SS |
47 | #include "gdbcmd.h" |
48 | #include "serial.h" | |
49 | #include "bfd.h" | |
50 | #include "target.h" | |
51 | #include "demangle.h" | |
52 | #include "expression.h" | |
53 | #include "language.h" | |
234b45d4 | 54 | #include "charset.h" |
c906108c | 55 | #include "annotate.h" |
303c8ebd | 56 | #include "filenames.h" |
7b90c3f9 | 57 | #include "symfile.h" |
ae5a43e0 | 58 | #include "gdb_obstack.h" |
9544c605 | 59 | #include "gdbcore.h" |
698ba934 | 60 | #include "top.h" |
7c953934 | 61 | #include "main.h" |
c906108c | 62 | |
8731e58e | 63 | #include "inferior.h" /* for signed_pointer_to_address */ |
ac2e2ef7 | 64 | |
2d1b2124 AC |
65 | #include <sys/param.h> /* For MAXPATHLEN */ |
66 | ||
3b78cdbb | 67 | #include "gdb_curses.h" |
020cc13c | 68 | |
dbda9972 | 69 | #include "readline/readline.h" |
c906108c | 70 | |
75feb17d DJ |
71 | #include <sys/time.h> |
72 | #include <time.h> | |
73 | ||
8626589c | 74 | #include "gdb_usleep.h" |
390a8aca | 75 | #include "interps.h" |
dc92e161 | 76 | #include "gdb_regex.h" |
8626589c | 77 | |
a3828db0 | 78 | #if !HAVE_DECL_MALLOC |
5ac79d78 | 79 | extern PTR malloc (); /* ARI: PTR */ |
3c37485b | 80 | #endif |
a3828db0 | 81 | #if !HAVE_DECL_REALLOC |
5ac79d78 | 82 | extern PTR realloc (); /* ARI: PTR */ |
0e52036f | 83 | #endif |
a3828db0 | 84 | #if !HAVE_DECL_FREE |
81b8eb80 AC |
85 | extern void free (); |
86 | #endif | |
81b8eb80 | 87 | |
c906108c SS |
88 | /* readline defines this. */ |
89 | #undef savestring | |
90 | ||
9a4105ab | 91 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
92 | |
93 | /* Prototypes for local functions */ | |
94 | ||
d9fcf2fb | 95 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
a0b31db1 | 96 | va_list, int) ATTRIBUTE_PRINTF (2, 0); |
c906108c | 97 | |
d9fcf2fb | 98 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 99 | |
e42c9534 AC |
100 | static void do_my_cleanups (struct cleanup **, struct cleanup *); |
101 | ||
a14ed312 | 102 | static void prompt_for_continue (void); |
c906108c | 103 | |
eb0d3137 | 104 | static void set_screen_size (void); |
a14ed312 | 105 | static void set_width (void); |
c906108c | 106 | |
75feb17d DJ |
107 | /* A flag indicating whether to timestamp debugging messages. */ |
108 | ||
109 | static int debug_timestamp = 0; | |
110 | ||
c906108c SS |
111 | /* Chain of cleanup actions established with make_cleanup, |
112 | to be executed if an error happens. */ | |
113 | ||
c5aa993b JM |
114 | static struct cleanup *cleanup_chain; /* cleaned up after a failed command */ |
115 | static struct cleanup *final_cleanup_chain; /* cleaned up when gdb exits */ | |
43ff13b4 | 116 | |
581e13c1 | 117 | /* Nonzero if we have job control. */ |
c906108c SS |
118 | |
119 | int job_control; | |
120 | ||
121 | /* Nonzero means a quit has been requested. */ | |
122 | ||
123 | int quit_flag; | |
124 | ||
125 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
126 | than waiting until QUIT is executed. Be careful in setting this; | |
127 | code which executes with immediate_quit set has to be very careful | |
128 | about being able to deal with being interrupted at any time. It is | |
129 | almost always better to use QUIT; the only exception I can think of | |
130 | is being able to quit out of a system call (using EINTR loses if | |
131 | the SIGINT happens between the previous QUIT and the system call). | |
132 | To immediately quit in the case in which a SIGINT happens between | |
133 | the previous QUIT and setting immediate_quit (desirable anytime we | |
134 | expect to block), call QUIT after setting immediate_quit. */ | |
135 | ||
136 | int immediate_quit; | |
137 | ||
4a351cef AF |
138 | /* Nonzero means that encoded C++/ObjC names should be printed out in their |
139 | C++/ObjC form rather than raw. */ | |
c906108c SS |
140 | |
141 | int demangle = 1; | |
920d2a44 AC |
142 | static void |
143 | show_demangle (struct ui_file *file, int from_tty, | |
144 | struct cmd_list_element *c, const char *value) | |
145 | { | |
3e43a32a MS |
146 | fprintf_filtered (file, |
147 | _("Demangling of encoded C++/ObjC names " | |
148 | "when displaying symbols is %s.\n"), | |
920d2a44 AC |
149 | value); |
150 | } | |
c906108c | 151 | |
4a351cef AF |
152 | /* Nonzero means that encoded C++/ObjC names should be printed out in their |
153 | C++/ObjC form even in assembler language displays. If this is set, but | |
c906108c SS |
154 | DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */ |
155 | ||
156 | int asm_demangle = 0; | |
920d2a44 AC |
157 | static void |
158 | show_asm_demangle (struct ui_file *file, int from_tty, | |
159 | struct cmd_list_element *c, const char *value) | |
160 | { | |
3e43a32a MS |
161 | fprintf_filtered (file, |
162 | _("Demangling of C++/ObjC names in " | |
163 | "disassembly listings is %s.\n"), | |
920d2a44 AC |
164 | value); |
165 | } | |
c906108c SS |
166 | |
167 | /* Nonzero means that strings with character values >0x7F should be printed | |
168 | as octal escapes. Zero means just print the value (e.g. it's an | |
169 | international character, and the terminal or window can cope.) */ | |
170 | ||
171 | int sevenbit_strings = 0; | |
920d2a44 AC |
172 | static void |
173 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
174 | struct cmd_list_element *c, const char *value) | |
175 | { | |
3e43a32a MS |
176 | fprintf_filtered (file, _("Printing of 8-bit characters " |
177 | "in strings as \\nnn is %s.\n"), | |
920d2a44 AC |
178 | value); |
179 | } | |
c906108c SS |
180 | |
181 | /* String to be printed before error messages, if any. */ | |
182 | ||
183 | char *error_pre_print; | |
184 | ||
185 | /* String to be printed before quit messages, if any. */ | |
186 | ||
187 | char *quit_pre_print; | |
188 | ||
189 | /* String to be printed before warning messages, if any. */ | |
190 | ||
191 | char *warning_pre_print = "\nwarning: "; | |
192 | ||
193 | int pagination_enabled = 1; | |
920d2a44 AC |
194 | static void |
195 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
196 | struct cmd_list_element *c, const char *value) | |
197 | { | |
198 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
199 | } | |
200 | ||
c906108c | 201 | \f |
c5aa993b | 202 | |
c906108c SS |
203 | /* Add a new cleanup to the cleanup_chain, |
204 | and return the previous chain pointer | |
205 | to be passed later to do_cleanups or discard_cleanups. | |
206 | Args are FUNCTION to clean up with, and ARG to pass to it. */ | |
207 | ||
208 | struct cleanup * | |
e4005526 | 209 | make_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 210 | { |
c5aa993b | 211 | return make_my_cleanup (&cleanup_chain, function, arg); |
c906108c SS |
212 | } |
213 | ||
4f8d22e3 PA |
214 | struct cleanup * |
215 | make_cleanup_dtor (make_cleanup_ftype *function, void *arg, | |
216 | void (*dtor) (void *)) | |
217 | { | |
218 | return make_my_cleanup2 (&cleanup_chain, | |
219 | function, arg, dtor); | |
220 | } | |
221 | ||
c906108c | 222 | struct cleanup * |
e4005526 | 223 | make_final_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 224 | { |
c5aa993b | 225 | return make_my_cleanup (&final_cleanup_chain, function, arg); |
c906108c | 226 | } |
7a292a7a | 227 | |
7a292a7a | 228 | static void |
fba45db2 | 229 | do_freeargv (void *arg) |
7a292a7a | 230 | { |
c5aa993b | 231 | freeargv ((char **) arg); |
7a292a7a SS |
232 | } |
233 | ||
234 | struct cleanup * | |
fba45db2 | 235 | make_cleanup_freeargv (char **arg) |
7a292a7a SS |
236 | { |
237 | return make_my_cleanup (&cleanup_chain, do_freeargv, arg); | |
238 | } | |
239 | ||
5c65bbb6 AC |
240 | static void |
241 | do_bfd_close_cleanup (void *arg) | |
242 | { | |
243 | bfd_close (arg); | |
244 | } | |
245 | ||
246 | struct cleanup * | |
247 | make_cleanup_bfd_close (bfd *abfd) | |
248 | { | |
249 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
250 | } | |
251 | ||
f5ff8c83 AC |
252 | static void |
253 | do_close_cleanup (void *arg) | |
254 | { | |
f042532c | 255 | int *fd = arg; |
e0627e85 | 256 | |
f042532c | 257 | close (*fd); |
f5ff8c83 AC |
258 | } |
259 | ||
260 | struct cleanup * | |
261 | make_cleanup_close (int fd) | |
262 | { | |
f042532c | 263 | int *saved_fd = xmalloc (sizeof (fd)); |
e0627e85 | 264 | |
f042532c | 265 | *saved_fd = fd; |
a05016c0 | 266 | return make_cleanup_dtor (do_close_cleanup, saved_fd, xfree); |
f5ff8c83 AC |
267 | } |
268 | ||
7c8a8b04 TT |
269 | /* Helper function which does the work for make_cleanup_fclose. */ |
270 | ||
271 | static void | |
272 | do_fclose_cleanup (void *arg) | |
273 | { | |
c02866a0 | 274 | FILE *file = arg; |
e0627e85 | 275 | |
c02866a0 | 276 | fclose (file); |
7c8a8b04 TT |
277 | } |
278 | ||
279 | /* Return a new cleanup that closes FILE. */ | |
280 | ||
281 | struct cleanup * | |
282 | make_cleanup_fclose (FILE *file) | |
283 | { | |
284 | return make_cleanup (do_fclose_cleanup, file); | |
285 | } | |
286 | ||
16ad9370 TT |
287 | /* Helper function which does the work for make_cleanup_obstack_free. */ |
288 | ||
289 | static void | |
290 | do_obstack_free (void *arg) | |
291 | { | |
292 | struct obstack *ob = arg; | |
e0627e85 | 293 | |
16ad9370 TT |
294 | obstack_free (ob, NULL); |
295 | } | |
296 | ||
297 | /* Return a new cleanup that frees OBSTACK. */ | |
298 | ||
299 | struct cleanup * | |
300 | make_cleanup_obstack_free (struct obstack *obstack) | |
301 | { | |
302 | return make_cleanup (do_obstack_free, obstack); | |
303 | } | |
304 | ||
11cf8741 | 305 | static void |
d9fcf2fb | 306 | do_ui_file_delete (void *arg) |
11cf8741 | 307 | { |
d9fcf2fb | 308 | ui_file_delete (arg); |
11cf8741 JM |
309 | } |
310 | ||
311 | struct cleanup * | |
d9fcf2fb | 312 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 313 | { |
d9fcf2fb | 314 | return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg); |
11cf8741 JM |
315 | } |
316 | ||
8d4d924b JK |
317 | /* Helper function for make_cleanup_ui_out_redirect_pop. */ |
318 | ||
319 | static void | |
320 | do_ui_out_redirect_pop (void *arg) | |
321 | { | |
322 | struct ui_out *uiout = arg; | |
323 | ||
324 | if (ui_out_redirect (uiout, NULL) < 0) | |
325 | warning (_("Cannot restore redirection of the current output protocol")); | |
326 | } | |
327 | ||
328 | /* Return a new cleanup that pops the last redirection by ui_out_redirect | |
329 | with NULL parameter. */ | |
330 | ||
331 | struct cleanup * | |
332 | make_cleanup_ui_out_redirect_pop (struct ui_out *uiout) | |
333 | { | |
334 | return make_my_cleanup (&cleanup_chain, do_ui_out_redirect_pop, uiout); | |
335 | } | |
336 | ||
7b90c3f9 JB |
337 | static void |
338 | do_free_section_addr_info (void *arg) | |
339 | { | |
340 | free_section_addr_info (arg); | |
341 | } | |
342 | ||
343 | struct cleanup * | |
344 | make_cleanup_free_section_addr_info (struct section_addr_info *addrs) | |
345 | { | |
346 | return make_my_cleanup (&cleanup_chain, do_free_section_addr_info, addrs); | |
347 | } | |
348 | ||
0b080f59 VP |
349 | struct restore_integer_closure |
350 | { | |
351 | int *variable; | |
352 | int value; | |
353 | }; | |
354 | ||
355 | static void | |
356 | restore_integer (void *p) | |
357 | { | |
358 | struct restore_integer_closure *closure = p; | |
e0627e85 | 359 | |
0b080f59 VP |
360 | *(closure->variable) = closure->value; |
361 | } | |
7b90c3f9 | 362 | |
3e43a32a MS |
363 | /* Remember the current value of *VARIABLE and make it restored when |
364 | the cleanup is run. */ | |
5da1313b | 365 | |
c906108c | 366 | struct cleanup * |
0b080f59 VP |
367 | make_cleanup_restore_integer (int *variable) |
368 | { | |
369 | struct restore_integer_closure *c = | |
370 | xmalloc (sizeof (struct restore_integer_closure)); | |
e0627e85 | 371 | |
0b080f59 VP |
372 | c->variable = variable; |
373 | c->value = *variable; | |
374 | ||
375 | return make_my_cleanup2 (&cleanup_chain, restore_integer, (void *)c, | |
376 | xfree); | |
377 | } | |
378 | ||
3e43a32a MS |
379 | /* Remember the current value of *VARIABLE and make it restored when |
380 | the cleanup is run. */ | |
5da1313b JK |
381 | |
382 | struct cleanup * | |
383 | make_cleanup_restore_uinteger (unsigned int *variable) | |
384 | { | |
385 | return make_cleanup_restore_integer ((int *) variable); | |
386 | } | |
387 | ||
c0edd9ed JK |
388 | /* Helper for make_cleanup_unpush_target. */ |
389 | ||
390 | static void | |
391 | do_unpush_target (void *arg) | |
392 | { | |
393 | struct target_ops *ops = arg; | |
394 | ||
395 | unpush_target (ops); | |
396 | } | |
397 | ||
398 | /* Return a new cleanup that unpushes OPS. */ | |
399 | ||
400 | struct cleanup * | |
401 | make_cleanup_unpush_target (struct target_ops *ops) | |
402 | { | |
403 | return make_my_cleanup (&cleanup_chain, do_unpush_target, ops); | |
404 | } | |
405 | ||
5da1313b JK |
406 | struct restore_ui_file_closure |
407 | { | |
408 | struct ui_file **variable; | |
409 | struct ui_file *value; | |
410 | }; | |
411 | ||
412 | static void | |
413 | do_restore_ui_file (void *p) | |
414 | { | |
415 | struct restore_ui_file_closure *closure = p; | |
416 | ||
417 | *(closure->variable) = closure->value; | |
418 | } | |
419 | ||
420 | /* Remember the current value of *VARIABLE and make it restored when | |
421 | the cleanup is run. */ | |
422 | ||
423 | struct cleanup * | |
424 | make_cleanup_restore_ui_file (struct ui_file **variable) | |
425 | { | |
426 | struct restore_ui_file_closure *c = XNEW (struct restore_ui_file_closure); | |
427 | ||
428 | c->variable = variable; | |
429 | c->value = *variable; | |
430 | ||
431 | return make_cleanup_dtor (do_restore_ui_file, (void *) c, xfree); | |
432 | } | |
433 | ||
0b080f59 VP |
434 | struct cleanup * |
435 | make_my_cleanup2 (struct cleanup **pmy_chain, make_cleanup_ftype *function, | |
436 | void *arg, void (*free_arg) (void *)) | |
c906108c | 437 | { |
52f0bd74 | 438 | struct cleanup *new |
8731e58e | 439 | = (struct cleanup *) xmalloc (sizeof (struct cleanup)); |
52f0bd74 | 440 | struct cleanup *old_chain = *pmy_chain; |
c906108c SS |
441 | |
442 | new->next = *pmy_chain; | |
443 | new->function = function; | |
0b080f59 | 444 | new->free_arg = free_arg; |
c906108c SS |
445 | new->arg = arg; |
446 | *pmy_chain = new; | |
447 | ||
448 | return old_chain; | |
449 | } | |
450 | ||
0b080f59 VP |
451 | struct cleanup * |
452 | make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function, | |
453 | void *arg) | |
454 | { | |
455 | return make_my_cleanup2 (pmy_chain, function, arg, NULL); | |
456 | } | |
457 | ||
c906108c SS |
458 | /* Discard cleanups and do the actions they describe |
459 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
460 | ||
461 | void | |
aa1ee363 | 462 | do_cleanups (struct cleanup *old_chain) |
c906108c | 463 | { |
c5aa993b | 464 | do_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
465 | } |
466 | ||
467 | void | |
aa1ee363 | 468 | do_final_cleanups (struct cleanup *old_chain) |
c906108c | 469 | { |
c5aa993b | 470 | do_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
471 | } |
472 | ||
e42c9534 | 473 | static void |
aa1ee363 AC |
474 | do_my_cleanups (struct cleanup **pmy_chain, |
475 | struct cleanup *old_chain) | |
c906108c | 476 | { |
52f0bd74 | 477 | struct cleanup *ptr; |
e0627e85 | 478 | |
c906108c SS |
479 | while ((ptr = *pmy_chain) != old_chain) |
480 | { | |
5f2302ab | 481 | *pmy_chain = ptr->next; /* Do this first in case of recursion. */ |
c906108c | 482 | (*ptr->function) (ptr->arg); |
0b080f59 VP |
483 | if (ptr->free_arg) |
484 | (*ptr->free_arg) (ptr->arg); | |
b8c9b27d | 485 | xfree (ptr); |
c906108c SS |
486 | } |
487 | } | |
488 | ||
489 | /* Discard cleanups, not doing the actions they describe, | |
490 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
491 | ||
492 | void | |
aa1ee363 | 493 | discard_cleanups (struct cleanup *old_chain) |
c906108c | 494 | { |
c5aa993b | 495 | discard_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
496 | } |
497 | ||
498 | void | |
aa1ee363 | 499 | discard_final_cleanups (struct cleanup *old_chain) |
c906108c | 500 | { |
c5aa993b | 501 | discard_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
502 | } |
503 | ||
504 | void | |
aa1ee363 AC |
505 | discard_my_cleanups (struct cleanup **pmy_chain, |
506 | struct cleanup *old_chain) | |
c906108c | 507 | { |
52f0bd74 | 508 | struct cleanup *ptr; |
e0627e85 | 509 | |
c906108c SS |
510 | while ((ptr = *pmy_chain) != old_chain) |
511 | { | |
512 | *pmy_chain = ptr->next; | |
0b080f59 VP |
513 | if (ptr->free_arg) |
514 | (*ptr->free_arg) (ptr->arg); | |
b8c9b27d | 515 | xfree (ptr); |
c906108c SS |
516 | } |
517 | } | |
518 | ||
519 | /* Set the cleanup_chain to 0, and return the old cleanup chain. */ | |
520 | struct cleanup * | |
fba45db2 | 521 | save_cleanups (void) |
c906108c | 522 | { |
c5aa993b | 523 | return save_my_cleanups (&cleanup_chain); |
c906108c SS |
524 | } |
525 | ||
526 | struct cleanup * | |
fba45db2 | 527 | save_final_cleanups (void) |
c906108c | 528 | { |
c5aa993b | 529 | return save_my_cleanups (&final_cleanup_chain); |
c906108c SS |
530 | } |
531 | ||
532 | struct cleanup * | |
fba45db2 | 533 | save_my_cleanups (struct cleanup **pmy_chain) |
c906108c SS |
534 | { |
535 | struct cleanup *old_chain = *pmy_chain; | |
536 | ||
537 | *pmy_chain = 0; | |
538 | return old_chain; | |
539 | } | |
540 | ||
541 | /* Restore the cleanup chain from a previously saved chain. */ | |
542 | void | |
fba45db2 | 543 | restore_cleanups (struct cleanup *chain) |
c906108c | 544 | { |
c5aa993b | 545 | restore_my_cleanups (&cleanup_chain, chain); |
c906108c SS |
546 | } |
547 | ||
548 | void | |
fba45db2 | 549 | restore_final_cleanups (struct cleanup *chain) |
c906108c | 550 | { |
c5aa993b | 551 | restore_my_cleanups (&final_cleanup_chain, chain); |
c906108c SS |
552 | } |
553 | ||
554 | void | |
fba45db2 | 555 | restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain) |
c906108c SS |
556 | { |
557 | *pmy_chain = chain; | |
558 | } | |
559 | ||
560 | /* This function is useful for cleanups. | |
561 | Do | |
562 | ||
c5aa993b JM |
563 | foo = xmalloc (...); |
564 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
565 | |
566 | to arrange to free the object thus allocated. */ | |
567 | ||
568 | void | |
2f9429ae | 569 | free_current_contents (void *ptr) |
c906108c | 570 | { |
2f9429ae | 571 | void **location = ptr; |
e0627e85 | 572 | |
e2f9c474 | 573 | if (location == NULL) |
8e65ff28 | 574 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 575 | _("free_current_contents: NULL pointer")); |
2f9429ae | 576 | if (*location != NULL) |
e2f9c474 | 577 | { |
b8c9b27d | 578 | xfree (*location); |
e2f9c474 AC |
579 | *location = NULL; |
580 | } | |
c906108c SS |
581 | } |
582 | ||
583 | /* Provide a known function that does nothing, to use as a base for | |
584 | for a possibly long chain of cleanups. This is useful where we | |
585 | use the cleanup chain for handling normal cleanups as well as dealing | |
586 | with cleanups that need to be done as a result of a call to error(). | |
587 | In such cases, we may not be certain where the first cleanup is, unless | |
581e13c1 | 588 | we have a do-nothing one to always use as the base. */ |
c906108c | 589 | |
c906108c | 590 | void |
e4005526 | 591 | null_cleanup (void *arg) |
c906108c SS |
592 | { |
593 | } | |
594 | ||
0f3bb72e PH |
595 | /* If nonzero, display time usage both at startup and for each command. */ |
596 | ||
597 | static int display_time; | |
598 | ||
599 | /* If nonzero, display space usage both at startup and for each command. */ | |
600 | ||
601 | static int display_space; | |
602 | ||
603 | /* Records a run time and space usage to be used as a base for | |
604 | reporting elapsed time or change in space. In addition, | |
605 | the msg_type field indicates whether the saved time is from the | |
606 | beginning of GDB execution (0) or the beginning of an individual | |
607 | command execution (1). */ | |
608 | struct cmd_stats | |
609 | { | |
610 | int msg_type; | |
611 | long start_time; | |
612 | long start_space; | |
613 | }; | |
614 | ||
615 | /* Set whether to display time statistics to NEW_VALUE (non-zero | |
616 | means true). */ | |
617 | void | |
618 | set_display_time (int new_value) | |
619 | { | |
620 | display_time = new_value; | |
621 | } | |
622 | ||
623 | /* Set whether to display space statistics to NEW_VALUE (non-zero | |
624 | means true). */ | |
625 | void | |
626 | set_display_space (int new_value) | |
627 | { | |
628 | display_space = new_value; | |
629 | } | |
630 | ||
631 | /* As indicated by display_time and display_space, report GDB's elapsed time | |
632 | and space usage from the base time and space provided in ARG, which | |
581e13c1 MS |
633 | must be a pointer to a struct cmd_stat. This function is intended |
634 | to be called as a cleanup. */ | |
0f3bb72e PH |
635 | static void |
636 | report_command_stats (void *arg) | |
637 | { | |
638 | struct cmd_stats *start_stats = (struct cmd_stats *) arg; | |
639 | int msg_type = start_stats->msg_type; | |
640 | ||
641 | if (display_time) | |
642 | { | |
643 | long cmd_time = get_run_time () - start_stats->start_time; | |
644 | ||
645 | printf_unfiltered (msg_type == 0 | |
646 | ? _("Startup time: %ld.%06ld\n") | |
647 | : _("Command execution time: %ld.%06ld\n"), | |
648 | cmd_time / 1000000, cmd_time % 1000000); | |
649 | } | |
650 | ||
651 | if (display_space) | |
652 | { | |
653 | #ifdef HAVE_SBRK | |
654 | char *lim = (char *) sbrk (0); | |
655 | ||
656 | long space_now = lim - lim_at_start; | |
657 | long space_diff = space_now - start_stats->start_space; | |
658 | ||
659 | printf_unfiltered (msg_type == 0 | |
660 | ? _("Space used: %ld (%c%ld during startup)\n") | |
661 | : _("Space used: %ld (%c%ld for this command)\n"), | |
662 | space_now, | |
663 | (space_diff >= 0 ? '+' : '-'), | |
664 | space_diff); | |
665 | #endif | |
666 | } | |
667 | } | |
668 | ||
669 | /* Create a cleanup that reports time and space used since its | |
670 | creation. Precise messages depend on MSG_TYPE: | |
671 | 0: Initial time/space | |
672 | 1: Individual command time/space. */ | |
673 | struct cleanup * | |
674 | make_command_stats_cleanup (int msg_type) | |
675 | { | |
676 | struct cmd_stats *new_stat = XMALLOC (struct cmd_stats); | |
677 | ||
678 | #ifdef HAVE_SBRK | |
679 | char *lim = (char *) sbrk (0); | |
680 | new_stat->start_space = lim - lim_at_start; | |
681 | #endif | |
682 | ||
683 | new_stat->msg_type = msg_type; | |
684 | new_stat->start_time = get_run_time (); | |
685 | ||
686 | return make_cleanup_dtor (report_command_stats, new_stat, xfree); | |
687 | } | |
688 | ||
0ffe5012 PA |
689 | /* Continuations are implemented as cleanups internally. Inherit from |
690 | cleanups. */ | |
691 | struct continuation | |
692 | { | |
693 | struct cleanup base; | |
694 | }; | |
695 | ||
95e54da7 PA |
696 | /* Add a continuation to the continuation list of THREAD. The new |
697 | continuation will be added at the front. */ | |
43ff13b4 | 698 | void |
95e54da7 PA |
699 | add_continuation (struct thread_info *thread, |
700 | void (*continuation_hook) (void *), void *args, | |
604ead4a | 701 | void (*continuation_free_args) (void *)) |
43ff13b4 | 702 | { |
95e54da7 | 703 | struct cleanup *as_cleanup = &thread->continuations->base; |
604ead4a | 704 | make_cleanup_ftype *continuation_hook_fn = continuation_hook; |
43ff13b4 | 705 | |
0ffe5012 | 706 | make_my_cleanup2 (&as_cleanup, |
604ead4a PA |
707 | continuation_hook_fn, |
708 | args, | |
709 | continuation_free_args); | |
0ffe5012 | 710 | |
95e54da7 | 711 | thread->continuations = (struct continuation *) as_cleanup; |
43ff13b4 JM |
712 | } |
713 | ||
e0ba6746 PA |
714 | /* Add a continuation to the continuation list of INFERIOR. The new |
715 | continuation will be added at the front. */ | |
716 | ||
717 | void | |
718 | add_inferior_continuation (void (*continuation_hook) (void *), void *args, | |
719 | void (*continuation_free_args) (void *)) | |
720 | { | |
721 | struct inferior *inf = current_inferior (); | |
722 | struct cleanup *as_cleanup = &inf->continuations->base; | |
723 | make_cleanup_ftype *continuation_hook_fn = continuation_hook; | |
724 | ||
725 | make_my_cleanup2 (&as_cleanup, | |
726 | continuation_hook_fn, | |
727 | args, | |
728 | continuation_free_args); | |
729 | ||
730 | inf->continuations = (struct continuation *) as_cleanup; | |
731 | } | |
732 | ||
733 | /* Do all continuations of the current inferior. */ | |
734 | ||
735 | void | |
736 | do_all_inferior_continuations (void) | |
737 | { | |
e0ba6746 PA |
738 | struct cleanup *as_cleanup; |
739 | struct inferior *inf = current_inferior (); | |
740 | ||
741 | if (inf->continuations == NULL) | |
742 | return; | |
743 | ||
744 | /* Copy the list header into another pointer, and set the global | |
745 | list header to null, so that the global list can change as a side | |
746 | effect of invoking the continuations and the processing of the | |
747 | preexisting continuations will not be affected. */ | |
748 | ||
749 | as_cleanup = &inf->continuations->base; | |
750 | inf->continuations = NULL; | |
751 | ||
752 | /* Work now on the list we have set aside. */ | |
753 | do_my_cleanups (&as_cleanup, NULL); | |
754 | } | |
755 | ||
756 | /* Get rid of all the inferior-wide continuations of INF. */ | |
757 | ||
758 | void | |
759 | discard_all_inferior_continuations (struct inferior *inf) | |
760 | { | |
761 | struct cleanup *continuation_ptr = &inf->continuations->base; | |
e0627e85 | 762 | |
e0ba6746 PA |
763 | discard_my_cleanups (&continuation_ptr, NULL); |
764 | inf->continuations = NULL; | |
765 | } | |
766 | ||
95e54da7 PA |
767 | static void |
768 | restore_thread_cleanup (void *arg) | |
769 | { | |
770 | ptid_t *ptid_p = arg; | |
e0627e85 | 771 | |
95e54da7 PA |
772 | switch_to_thread (*ptid_p); |
773 | } | |
774 | ||
775 | /* Walk down the continuation list of PTID, and execute all the | |
776 | continuations. There is a problem though. In some cases new | |
777 | continuations may be added while we are in the middle of this loop. | |
778 | If this happens they will be added in the front, and done before we | |
779 | have a chance of exhausting those that were already there. We need | |
780 | to then save the beginning of the list in a pointer and do the | |
781 | continuations from there on, instead of using the global beginning | |
782 | of list as our iteration pointer. */ | |
783 | static void | |
784 | do_all_continuations_ptid (ptid_t ptid, | |
785 | struct continuation **continuations_p) | |
c2d11a7d | 786 | { |
95e54da7 PA |
787 | struct cleanup *old_chain; |
788 | ptid_t current_thread; | |
789 | struct cleanup *as_cleanup; | |
790 | ||
791 | if (*continuations_p == NULL) | |
792 | return; | |
793 | ||
794 | current_thread = inferior_ptid; | |
795 | ||
796 | /* Restore selected thread on exit. Don't try to restore the frame | |
797 | as well, because: | |
798 | ||
799 | - When running continuations, the selected frame is always #0. | |
800 | ||
801 | - The continuations may trigger symbol file loads, which may | |
802 | change the frame layout (frame ids change), which would trigger | |
803 | a warning if we used make_cleanup_restore_current_thread. */ | |
804 | ||
805 | old_chain = make_cleanup (restore_thread_cleanup, ¤t_thread); | |
806 | ||
807 | /* Let the continuation see this thread as selected. */ | |
808 | switch_to_thread (ptid); | |
c2d11a7d JM |
809 | |
810 | /* Copy the list header into another pointer, and set the global | |
811 | list header to null, so that the global list can change as a side | |
604ead4a PA |
812 | effect of invoking the continuations and the processing of the |
813 | preexisting continuations will not be affected. */ | |
814 | ||
95e54da7 PA |
815 | as_cleanup = &(*continuations_p)->base; |
816 | *continuations_p = NULL; | |
c2d11a7d | 817 | |
0a4a0819 | 818 | /* Work now on the list we have set aside. */ |
95e54da7 PA |
819 | do_my_cleanups (&as_cleanup, NULL); |
820 | ||
821 | do_cleanups (old_chain); | |
822 | } | |
823 | ||
824 | /* Callback for iterate over threads. */ | |
825 | static int | |
826 | do_all_continuations_thread_callback (struct thread_info *thread, void *data) | |
827 | { | |
828 | do_all_continuations_ptid (thread->ptid, &thread->continuations); | |
829 | return 0; | |
c2d11a7d JM |
830 | } |
831 | ||
95e54da7 | 832 | /* Do all continuations of thread THREAD. */ |
c2d11a7d | 833 | void |
95e54da7 PA |
834 | do_all_continuations_thread (struct thread_info *thread) |
835 | { | |
836 | do_all_continuations_thread_callback (thread, NULL); | |
837 | } | |
838 | ||
839 | /* Do all continuations of all threads. */ | |
840 | void | |
841 | do_all_continuations (void) | |
43ff13b4 | 842 | { |
95e54da7 PA |
843 | iterate_over_threads (do_all_continuations_thread_callback, NULL); |
844 | } | |
845 | ||
846 | /* Callback for iterate over threads. */ | |
847 | static int | |
848 | discard_all_continuations_thread_callback (struct thread_info *thread, | |
849 | void *data) | |
850 | { | |
851 | struct cleanup *continuation_ptr = &thread->continuations->base; | |
e0627e85 | 852 | |
0ffe5012 | 853 | discard_my_cleanups (&continuation_ptr, NULL); |
95e54da7 PA |
854 | thread->continuations = NULL; |
855 | return 0; | |
856 | } | |
857 | ||
858 | /* Get rid of all the continuations of THREAD. */ | |
859 | void | |
860 | discard_all_continuations_thread (struct thread_info *thread) | |
861 | { | |
862 | discard_all_continuations_thread_callback (thread, NULL); | |
863 | } | |
864 | ||
865 | /* Get rid of all the continuations of all threads. */ | |
866 | void | |
867 | discard_all_continuations (void) | |
868 | { | |
869 | iterate_over_threads (discard_all_continuations_thread_callback, NULL); | |
43ff13b4 | 870 | } |
c2c6d25f | 871 | |
95e54da7 PA |
872 | |
873 | /* Add a continuation to the intermediate continuation list of THREAD. | |
874 | The new continuation will be added at the front. */ | |
c2d11a7d | 875 | void |
95e54da7 PA |
876 | add_intermediate_continuation (struct thread_info *thread, |
877 | void (*continuation_hook) | |
604ead4a PA |
878 | (void *), void *args, |
879 | void (*continuation_free_args) (void *)) | |
c2d11a7d | 880 | { |
95e54da7 | 881 | struct cleanup *as_cleanup = &thread->intermediate_continuations->base; |
604ead4a | 882 | make_cleanup_ftype *continuation_hook_fn = continuation_hook; |
c2d11a7d | 883 | |
0ffe5012 | 884 | make_my_cleanup2 (&as_cleanup, |
604ead4a PA |
885 | continuation_hook_fn, |
886 | args, | |
887 | continuation_free_args); | |
0ffe5012 | 888 | |
95e54da7 | 889 | thread->intermediate_continuations = (struct continuation *) as_cleanup; |
c2d11a7d JM |
890 | } |
891 | ||
892 | /* Walk down the cmd_continuation list, and execute all the | |
581e13c1 | 893 | continuations. There is a problem though. In some cases new |
c2d11a7d | 894 | continuations may be added while we are in the middle of this |
581e13c1 | 895 | loop. If this happens they will be added in the front, and done |
c2d11a7d | 896 | before we have a chance of exhausting those that were already |
581e13c1 | 897 | there. We need to then save the beginning of the list in a pointer |
c2d11a7d | 898 | and do the continuations from there on, instead of using the |
581e13c1 | 899 | global beginning of list as our iteration pointer. */ |
95e54da7 PA |
900 | static int |
901 | do_all_intermediate_continuations_thread_callback (struct thread_info *thread, | |
902 | void *data) | |
903 | { | |
904 | do_all_continuations_ptid (thread->ptid, | |
905 | &thread->intermediate_continuations); | |
906 | return 0; | |
907 | } | |
908 | ||
909 | /* Do all intermediate continuations of thread THREAD. */ | |
c2d11a7d | 910 | void |
95e54da7 | 911 | do_all_intermediate_continuations_thread (struct thread_info *thread) |
c2d11a7d | 912 | { |
95e54da7 PA |
913 | do_all_intermediate_continuations_thread_callback (thread, NULL); |
914 | } | |
c2d11a7d | 915 | |
95e54da7 PA |
916 | /* Do all intermediate continuations of all threads. */ |
917 | void | |
918 | do_all_intermediate_continuations (void) | |
919 | { | |
3e43a32a MS |
920 | iterate_over_threads (do_all_intermediate_continuations_thread_callback, |
921 | NULL); | |
95e54da7 | 922 | } |
604ead4a | 923 | |
95e54da7 PA |
924 | /* Callback for iterate over threads. */ |
925 | static int | |
926 | discard_all_intermediate_continuations_thread_callback (struct thread_info *thread, | |
927 | void *data) | |
928 | { | |
929 | struct cleanup *continuation_ptr = &thread->intermediate_continuations->base; | |
e0627e85 | 930 | |
95e54da7 PA |
931 | discard_my_cleanups (&continuation_ptr, NULL); |
932 | thread->intermediate_continuations = NULL; | |
933 | return 0; | |
934 | } | |
c2d11a7d | 935 | |
95e54da7 PA |
936 | /* Get rid of all the intermediate continuations of THREAD. */ |
937 | void | |
938 | discard_all_intermediate_continuations_thread (struct thread_info *thread) | |
939 | { | |
940 | discard_all_intermediate_continuations_thread_callback (thread, NULL); | |
c2d11a7d JM |
941 | } |
942 | ||
95e54da7 | 943 | /* Get rid of all the intermediate continuations of all threads. */ |
c2c6d25f | 944 | void |
fba45db2 | 945 | discard_all_intermediate_continuations (void) |
c2c6d25f | 946 | { |
3e43a32a MS |
947 | iterate_over_threads (discard_all_intermediate_continuations_thread_callback, |
948 | NULL); | |
c2c6d25f | 949 | } |
c906108c | 950 | \f |
c5aa993b | 951 | |
8731e58e | 952 | |
f5a96129 AC |
953 | /* Print a warning message. The first argument STRING is the warning |
954 | message, used as an fprintf format string, the second is the | |
955 | va_list of arguments for that string. A warning is unfiltered (not | |
956 | paginated) so that the user does not need to page through each | |
957 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
958 | |
959 | void | |
f5a96129 | 960 | vwarning (const char *string, va_list args) |
c906108c | 961 | { |
9a4105ab AC |
962 | if (deprecated_warning_hook) |
963 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
964 | else |
965 | { | |
966 | target_terminal_ours (); | |
581e13c1 | 967 | wrap_here (""); /* Force out any buffered output. */ |
f5a96129 AC |
968 | gdb_flush (gdb_stdout); |
969 | if (warning_pre_print) | |
306d9ac5 | 970 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
971 | vfprintf_unfiltered (gdb_stderr, string, args); |
972 | fprintf_unfiltered (gdb_stderr, "\n"); | |
973 | va_end (args); | |
974 | } | |
c906108c SS |
975 | } |
976 | ||
977 | /* Print a warning message. | |
978 | The first argument STRING is the warning message, used as a fprintf string, | |
979 | and the remaining args are passed as arguments to it. | |
980 | The primary difference between warnings and errors is that a warning | |
981 | does not force the return to command level. */ | |
982 | ||
c906108c | 983 | void |
8731e58e | 984 | warning (const char *string, ...) |
c906108c SS |
985 | { |
986 | va_list args; | |
e0627e85 | 987 | |
c906108c | 988 | va_start (args, string); |
f5a96129 AC |
989 | vwarning (string, args); |
990 | va_end (args); | |
c906108c SS |
991 | } |
992 | ||
c906108c SS |
993 | /* Print an error message and return to command level. |
994 | The first argument STRING is the error message, used as a fprintf string, | |
995 | and the remaining args are passed as arguments to it. */ | |
996 | ||
c25c4a8b | 997 | void |
4ce44c66 JM |
998 | verror (const char *string, va_list args) |
999 | { | |
6b1b7650 | 1000 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
1001 | } |
1002 | ||
c25c4a8b | 1003 | void |
8731e58e | 1004 | error (const char *string, ...) |
c906108c SS |
1005 | { |
1006 | va_list args; | |
e0627e85 | 1007 | |
c906108c | 1008 | va_start (args, string); |
6b1b7650 | 1009 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 | 1010 | va_end (args); |
c906108c SS |
1011 | } |
1012 | ||
d75e3c94 JJ |
1013 | /* Print an error message and quit. |
1014 | The first argument STRING is the error message, used as a fprintf string, | |
1015 | and the remaining args are passed as arguments to it. */ | |
1016 | ||
c25c4a8b | 1017 | void |
d75e3c94 JJ |
1018 | vfatal (const char *string, va_list args) |
1019 | { | |
6b1b7650 | 1020 | throw_vfatal (string, args); |
d75e3c94 JJ |
1021 | } |
1022 | ||
c25c4a8b | 1023 | void |
d75e3c94 JJ |
1024 | fatal (const char *string, ...) |
1025 | { | |
1026 | va_list args; | |
e0627e85 | 1027 | |
d75e3c94 | 1028 | va_start (args, string); |
6b1b7650 | 1029 | throw_vfatal (string, args); |
d75e3c94 JJ |
1030 | va_end (args); |
1031 | } | |
1032 | ||
c25c4a8b | 1033 | void |
d75e3c94 | 1034 | error_stream (struct ui_file *stream) |
2acceee2 | 1035 | { |
759ef836 | 1036 | char *message = ui_file_xstrdup (stream, NULL); |
e0627e85 | 1037 | |
6b1b7650 | 1038 | make_cleanup (xfree, message); |
8a3fe4f8 | 1039 | error (("%s"), message); |
2acceee2 | 1040 | } |
c906108c | 1041 | |
7991dee7 JK |
1042 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
1043 | ||
1044 | static void | |
1045 | dump_core (void) | |
1046 | { | |
1047 | #ifdef HAVE_SETRLIMIT | |
1048 | struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY }; | |
1049 | ||
1050 | setrlimit (RLIMIT_CORE, &rlim); | |
1051 | #endif /* HAVE_SETRLIMIT */ | |
1052 | ||
1053 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
1054 | } | |
1055 | ||
3e43a32a MS |
1056 | /* Check whether GDB will be able to dump core using the dump_core |
1057 | function. */ | |
7991dee7 JK |
1058 | |
1059 | static int | |
1060 | can_dump_core (const char *reason) | |
1061 | { | |
1062 | #ifdef HAVE_GETRLIMIT | |
1063 | struct rlimit rlim; | |
1064 | ||
1065 | /* Be quiet and assume we can dump if an error is returned. */ | |
1066 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
1067 | return 1; | |
1068 | ||
1069 | if (rlim.rlim_max == 0) | |
1070 | { | |
1071 | fprintf_unfiltered (gdb_stderr, | |
3e43a32a MS |
1072 | _("%s\nUnable to dump core, use `ulimit -c" |
1073 | " unlimited' before executing GDB next time.\n"), | |
1074 | reason); | |
7991dee7 JK |
1075 | return 0; |
1076 | } | |
1077 | #endif /* HAVE_GETRLIMIT */ | |
1078 | ||
1079 | return 1; | |
1080 | } | |
1081 | ||
3c16cced PA |
1082 | /* Allow the user to configure the debugger behavior with respect to |
1083 | what to do when an internal problem is detected. */ | |
1084 | ||
1085 | const char internal_problem_ask[] = "ask"; | |
1086 | const char internal_problem_yes[] = "yes"; | |
1087 | const char internal_problem_no[] = "no"; | |
1088 | static const char *internal_problem_modes[] = | |
1089 | { | |
1090 | internal_problem_ask, | |
1091 | internal_problem_yes, | |
1092 | internal_problem_no, | |
1093 | NULL | |
1094 | }; | |
3c16cced | 1095 | |
581e13c1 | 1096 | /* Print a message reporting an internal error/warning. Ask the user |
dec43320 AC |
1097 | if they want to continue, dump core, or just exit. Return |
1098 | something to indicate a quit. */ | |
c906108c | 1099 | |
dec43320 | 1100 | struct internal_problem |
c906108c | 1101 | { |
dec43320 | 1102 | const char *name; |
3c16cced PA |
1103 | const char *should_quit; |
1104 | const char *should_dump_core; | |
dec43320 AC |
1105 | }; |
1106 | ||
1107 | /* Report a problem, internal to GDB, to the user. Once the problem | |
1108 | has been reported, and assuming GDB didn't quit, the caller can | |
1109 | either allow execution to resume or throw an error. */ | |
1110 | ||
a0b31db1 | 1111 | static void ATTRIBUTE_PRINTF (4, 0) |
dec43320 | 1112 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 1113 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 1114 | { |
dec43320 | 1115 | static int dejavu; |
375fc983 | 1116 | int quit_p; |
7be570e7 | 1117 | int dump_core_p; |
714b1282 | 1118 | char *reason; |
c906108c | 1119 | |
dec43320 | 1120 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
1121 | { |
1122 | static char msg[] = "Recursive internal problem.\n"; | |
5d502164 | 1123 | |
714b1282 AC |
1124 | switch (dejavu) |
1125 | { | |
1126 | case 0: | |
1127 | dejavu = 1; | |
1128 | break; | |
1129 | case 1: | |
1130 | dejavu = 2; | |
1131 | fputs_unfiltered (msg, gdb_stderr); | |
7991dee7 | 1132 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
1133 | default: |
1134 | dejavu = 3; | |
bf1d7d9c JB |
1135 | /* Newer GLIBC versions put the warn_unused_result attribute |
1136 | on write, but this is one of those rare cases where | |
1137 | ignoring the return value is correct. Casting to (void) | |
1138 | does not fix this problem. This is the solution suggested | |
1139 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
1140 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
7991dee7 | 1141 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
1142 | exit (1); |
1143 | } | |
1144 | } | |
c906108c | 1145 | |
dec43320 | 1146 | /* Try to get the message out and at the start of a new line. */ |
4261bedc | 1147 | target_terminal_ours (); |
dec43320 AC |
1148 | begin_line (); |
1149 | ||
714b1282 AC |
1150 | /* Create a string containing the full error/warning message. Need |
1151 | to call query with this full string, as otherwize the reason | |
1152 | (error/warning) and question become separated. Format using a | |
1153 | style similar to a compiler error message. Include extra detail | |
1154 | so that the user knows that they are living on the edge. */ | |
1155 | { | |
1156 | char *msg; | |
5d502164 | 1157 | |
e623b504 | 1158 | msg = xstrvprintf (fmt, ap); |
3e43a32a MS |
1159 | reason = xstrprintf ("%s:%d: %s: %s\n" |
1160 | "A problem internal to GDB has been detected,\n" | |
1161 | "further debugging may prove unreliable.", | |
1162 | file, line, problem->name, msg); | |
714b1282 AC |
1163 | xfree (msg); |
1164 | make_cleanup (xfree, reason); | |
1165 | } | |
7be570e7 | 1166 | |
3c16cced | 1167 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 1168 | { |
dec43320 | 1169 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
1170 | this lessens the likelihood of GDB going into an infinite |
1171 | loop. */ | |
26bb68be PP |
1172 | if (caution == 0) |
1173 | { | |
1174 | /* Emit the message and quit. */ | |
1175 | fputs_unfiltered (reason, gdb_stderr); | |
1176 | fputs_unfiltered ("\n", gdb_stderr); | |
1177 | quit_p = 1; | |
1178 | } | |
1179 | else | |
1180 | quit_p = query (_("%s\nQuit this debugging session? "), reason); | |
dec43320 | 1181 | } |
3c16cced PA |
1182 | else if (problem->should_quit == internal_problem_yes) |
1183 | quit_p = 1; | |
1184 | else if (problem->should_quit == internal_problem_no) | |
1185 | quit_p = 0; | |
1186 | else | |
1187 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 1188 | |
3c16cced | 1189 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 1190 | { |
7991dee7 JK |
1191 | if (!can_dump_core (reason)) |
1192 | dump_core_p = 0; | |
1193 | else | |
1194 | { | |
1195 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
1196 | `dropping' so that it is easier to see that something went | |
1197 | wrong in GDB. */ | |
1198 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason); | |
1199 | } | |
dec43320 | 1200 | } |
3c16cced | 1201 | else if (problem->should_dump_core == internal_problem_yes) |
7991dee7 | 1202 | dump_core_p = can_dump_core (reason); |
3c16cced PA |
1203 | else if (problem->should_dump_core == internal_problem_no) |
1204 | dump_core_p = 0; | |
1205 | else | |
1206 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 1207 | |
375fc983 | 1208 | if (quit_p) |
7be570e7 JM |
1209 | { |
1210 | if (dump_core_p) | |
7991dee7 | 1211 | dump_core (); |
375fc983 AC |
1212 | else |
1213 | exit (1); | |
7be570e7 JM |
1214 | } |
1215 | else | |
1216 | { | |
1217 | if (dump_core_p) | |
375fc983 | 1218 | { |
9b265ec2 | 1219 | #ifdef HAVE_WORKING_FORK |
375fc983 | 1220 | if (fork () == 0) |
7991dee7 | 1221 | dump_core (); |
9b265ec2 | 1222 | #endif |
375fc983 | 1223 | } |
7be570e7 | 1224 | } |
96baa820 JM |
1225 | |
1226 | dejavu = 0; | |
dec43320 AC |
1227 | } |
1228 | ||
1229 | static struct internal_problem internal_error_problem = { | |
3c16cced | 1230 | "internal-error", internal_problem_ask, internal_problem_ask |
dec43320 AC |
1231 | }; |
1232 | ||
c25c4a8b | 1233 | void |
8731e58e | 1234 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
1235 | { |
1236 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
315a522e | 1237 | deprecated_throw_reason (RETURN_ERROR); |
c906108c SS |
1238 | } |
1239 | ||
c25c4a8b | 1240 | void |
8e65ff28 | 1241 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
1242 | { |
1243 | va_list ap; | |
e0627e85 | 1244 | |
4ce44c66 | 1245 | va_start (ap, string); |
8e65ff28 | 1246 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
1247 | va_end (ap); |
1248 | } | |
1249 | ||
dec43320 | 1250 | static struct internal_problem internal_warning_problem = { |
3c16cced | 1251 | "internal-warning", internal_problem_ask, internal_problem_ask |
dec43320 AC |
1252 | }; |
1253 | ||
1254 | void | |
8731e58e | 1255 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
1256 | { |
1257 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
1258 | } | |
1259 | ||
1260 | void | |
1261 | internal_warning (const char *file, int line, const char *string, ...) | |
1262 | { | |
1263 | va_list ap; | |
e0627e85 | 1264 | |
dec43320 AC |
1265 | va_start (ap, string); |
1266 | internal_vwarning (file, line, string, ap); | |
1267 | va_end (ap); | |
1268 | } | |
1269 | ||
3c16cced PA |
1270 | /* Dummy functions to keep add_prefix_cmd happy. */ |
1271 | ||
1272 | static void | |
1273 | set_internal_problem_cmd (char *args, int from_tty) | |
1274 | { | |
1275 | } | |
1276 | ||
1277 | static void | |
1278 | show_internal_problem_cmd (char *args, int from_tty) | |
1279 | { | |
1280 | } | |
1281 | ||
1282 | /* When GDB reports an internal problem (error or warning) it gives | |
1283 | the user the opportunity to quit GDB and/or create a core file of | |
1284 | the current debug session. This function registers a few commands | |
1285 | that make it possible to specify that GDB should always or never | |
1286 | quit or create a core file, without asking. The commands look | |
1287 | like: | |
1288 | ||
1289 | maint set PROBLEM-NAME quit ask|yes|no | |
1290 | maint show PROBLEM-NAME quit | |
1291 | maint set PROBLEM-NAME corefile ask|yes|no | |
1292 | maint show PROBLEM-NAME corefile | |
1293 | ||
1294 | Where PROBLEM-NAME is currently "internal-error" or | |
1295 | "internal-warning". */ | |
1296 | ||
1297 | static void | |
1298 | add_internal_problem_command (struct internal_problem *problem) | |
1299 | { | |
1300 | struct cmd_list_element **set_cmd_list; | |
1301 | struct cmd_list_element **show_cmd_list; | |
1302 | char *set_doc; | |
1303 | char *show_doc; | |
1304 | ||
1305 | set_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
1306 | show_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
1307 | *set_cmd_list = NULL; | |
1308 | *show_cmd_list = NULL; | |
1309 | ||
1310 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
1311 | problem->name); | |
1312 | ||
1313 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
1314 | problem->name); | |
1315 | ||
1316 | add_prefix_cmd ((char*) problem->name, | |
1317 | class_maintenance, set_internal_problem_cmd, set_doc, | |
1318 | set_cmd_list, | |
c4f7c687 MK |
1319 | concat ("maintenance set ", problem->name, " ", |
1320 | (char *) NULL), | |
3c16cced PA |
1321 | 0/*allow-unknown*/, &maintenance_set_cmdlist); |
1322 | ||
1323 | add_prefix_cmd ((char*) problem->name, | |
1324 | class_maintenance, show_internal_problem_cmd, show_doc, | |
1325 | show_cmd_list, | |
c4f7c687 MK |
1326 | concat ("maintenance show ", problem->name, " ", |
1327 | (char *) NULL), | |
3c16cced PA |
1328 | 0/*allow-unknown*/, &maintenance_show_cmdlist); |
1329 | ||
3e43a32a MS |
1330 | set_doc = xstrprintf (_("Set whether GDB should quit " |
1331 | "when an %s is detected"), | |
3c16cced | 1332 | problem->name); |
3e43a32a MS |
1333 | show_doc = xstrprintf (_("Show whether GDB will quit " |
1334 | "when an %s is detected"), | |
3c16cced PA |
1335 | problem->name); |
1336 | add_setshow_enum_cmd ("quit", class_maintenance, | |
1337 | internal_problem_modes, | |
1338 | &problem->should_quit, | |
1339 | set_doc, | |
1340 | show_doc, | |
1341 | NULL, /* help_doc */ | |
1342 | NULL, /* setfunc */ | |
1343 | NULL, /* showfunc */ | |
1344 | set_cmd_list, | |
1345 | show_cmd_list); | |
1346 | ||
1eefb858 TT |
1347 | xfree (set_doc); |
1348 | xfree (show_doc); | |
1349 | ||
3e43a32a MS |
1350 | set_doc = xstrprintf (_("Set whether GDB should create a core " |
1351 | "file of GDB when %s is detected"), | |
3c16cced | 1352 | problem->name); |
3e43a32a MS |
1353 | show_doc = xstrprintf (_("Show whether GDB will create a core " |
1354 | "file of GDB when %s is detected"), | |
3c16cced PA |
1355 | problem->name); |
1356 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
1357 | internal_problem_modes, | |
1358 | &problem->should_dump_core, | |
1359 | set_doc, | |
1360 | show_doc, | |
1361 | NULL, /* help_doc */ | |
1362 | NULL, /* setfunc */ | |
1363 | NULL, /* showfunc */ | |
1364 | set_cmd_list, | |
1365 | show_cmd_list); | |
1eefb858 TT |
1366 | |
1367 | xfree (set_doc); | |
1368 | xfree (show_doc); | |
3c16cced PA |
1369 | } |
1370 | ||
c906108c SS |
1371 | /* Print the system error message for errno, and also mention STRING |
1372 | as the file name for which the error was encountered. | |
1373 | Then return to command level. */ | |
1374 | ||
c25c4a8b | 1375 | void |
6972bc8b | 1376 | perror_with_name (const char *string) |
c906108c SS |
1377 | { |
1378 | char *err; | |
1379 | char *combined; | |
1380 | ||
1381 | err = safe_strerror (errno); | |
1382 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1383 | strcpy (combined, string); | |
1384 | strcat (combined, ": "); | |
1385 | strcat (combined, err); | |
1386 | ||
1387 | /* I understand setting these is a matter of taste. Still, some people | |
1388 | may clear errno but not know about bfd_error. Doing this here is not | |
581e13c1 | 1389 | unreasonable. */ |
c906108c SS |
1390 | bfd_set_error (bfd_error_no_error); |
1391 | errno = 0; | |
1392 | ||
8a3fe4f8 | 1393 | error (_("%s."), combined); |
c906108c SS |
1394 | } |
1395 | ||
1396 | /* Print the system error message for ERRCODE, and also mention STRING | |
1397 | as the file name for which the error was encountered. */ | |
1398 | ||
1399 | void | |
6972bc8b | 1400 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
1401 | { |
1402 | char *err; | |
1403 | char *combined; | |
1404 | ||
1405 | err = safe_strerror (errcode); | |
1406 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1407 | strcpy (combined, string); | |
1408 | strcat (combined, ": "); | |
1409 | strcat (combined, err); | |
1410 | ||
1411 | /* We want anything which was printed on stdout to come out first, before | |
1412 | this message. */ | |
1413 | gdb_flush (gdb_stdout); | |
1414 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
1415 | } | |
1416 | ||
1417 | /* Control C eventually causes this to be called, at a convenient time. */ | |
1418 | ||
1419 | void | |
fba45db2 | 1420 | quit (void) |
c906108c | 1421 | { |
7be570e7 JM |
1422 | #ifdef __MSDOS__ |
1423 | /* No steenking SIGINT will ever be coming our way when the | |
1424 | program is resumed. Don't lie. */ | |
e06e2353 | 1425 | fatal ("Quit"); |
7be570e7 | 1426 | #else |
c906108c | 1427 | if (job_control |
8731e58e AC |
1428 | /* If there is no terminal switching for this target, then we can't |
1429 | possibly get screwed by the lack of job control. */ | |
c906108c | 1430 | || current_target.to_terminal_ours == NULL) |
e06e2353 | 1431 | fatal ("Quit"); |
c906108c | 1432 | else |
e06e2353 | 1433 | fatal ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 1434 | #endif |
c906108c SS |
1435 | } |
1436 | ||
c906108c | 1437 | \f |
c906108c | 1438 | /* Called when a memory allocation fails, with the number of bytes of |
581e13c1 | 1439 | memory requested in SIZE. */ |
c906108c | 1440 | |
c25c4a8b | 1441 | void |
fba45db2 | 1442 | nomem (long size) |
c906108c SS |
1443 | { |
1444 | if (size > 0) | |
1445 | { | |
8e65ff28 | 1446 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 1447 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 1448 | size); |
c906108c SS |
1449 | } |
1450 | else | |
1451 | { | |
e2e0b3e5 | 1452 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
1453 | } |
1454 | } | |
1455 | ||
c0e61796 AC |
1456 | /* The xmalloc() (libiberty.h) family of memory management routines. |
1457 | ||
1458 | These are like the ISO-C malloc() family except that they implement | |
1459 | consistent semantics and guard against typical memory management | |
7936743b | 1460 | problems. */ |
c0e61796 AC |
1461 | |
1462 | /* NOTE: These are declared using PTR to ensure consistency with | |
1463 | "libiberty.h". xfree() is GDB local. */ | |
1464 | ||
5ac79d78 | 1465 | PTR /* ARI: PTR */ |
c0e61796 AC |
1466 | xmalloc (size_t size) |
1467 | { | |
7936743b AC |
1468 | void *val; |
1469 | ||
1470 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1471 | semantics. It never returns NULL. */ | |
1472 | if (size == 0) | |
1473 | size = 1; | |
1474 | ||
5ac79d78 | 1475 | val = malloc (size); /* ARI: malloc */ |
7936743b AC |
1476 | if (val == NULL) |
1477 | nomem (size); | |
1478 | ||
1479 | return (val); | |
c0e61796 | 1480 | } |
c906108c | 1481 | |
5b90c7b5 AC |
1482 | void * |
1483 | xzalloc (size_t size) | |
1484 | { | |
1485 | return xcalloc (1, size); | |
1486 | } | |
1487 | ||
5ac79d78 PM |
1488 | PTR /* ARI: PTR */ |
1489 | xrealloc (PTR ptr, size_t size) /* ARI: PTR */ | |
c906108c | 1490 | { |
0efffb96 AC |
1491 | void *val; |
1492 | ||
1493 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1494 | semantics. It never returns NULL. */ | |
1495 | if (size == 0) | |
1496 | size = 1; | |
1497 | ||
1498 | if (ptr != NULL) | |
5ac79d78 | 1499 | val = realloc (ptr, size); /* ARI: realloc */ |
0efffb96 | 1500 | else |
5ac79d78 | 1501 | val = malloc (size); /* ARI: malloc */ |
0efffb96 AC |
1502 | if (val == NULL) |
1503 | nomem (size); | |
1504 | ||
1505 | return (val); | |
c906108c | 1506 | } |
b8c9b27d | 1507 | |
5ac79d78 | 1508 | PTR /* ARI: PTR */ |
c0e61796 AC |
1509 | xcalloc (size_t number, size_t size) |
1510 | { | |
aa2ee5f6 AC |
1511 | void *mem; |
1512 | ||
1513 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1514 | semantics. It never returns NULL. */ | |
1515 | if (number == 0 || size == 0) | |
1516 | { | |
1517 | number = 1; | |
1518 | size = 1; | |
1519 | } | |
1520 | ||
5ac79d78 | 1521 | mem = calloc (number, size); /* ARI: xcalloc */ |
aa2ee5f6 AC |
1522 | if (mem == NULL) |
1523 | nomem (number * size); | |
1524 | ||
1525 | return mem; | |
c0e61796 | 1526 | } |
b8c9b27d KB |
1527 | |
1528 | void | |
1529 | xfree (void *ptr) | |
1530 | { | |
2dc74dc1 | 1531 | if (ptr != NULL) |
5ac79d78 | 1532 | free (ptr); /* ARI: free */ |
b8c9b27d | 1533 | } |
c906108c | 1534 | \f |
c5aa993b | 1535 | |
76995688 | 1536 | /* Like asprintf/vasprintf but get an internal_error if the call |
581e13c1 | 1537 | fails. */ |
76995688 | 1538 | |
9ebf4acf AC |
1539 | char * |
1540 | xstrprintf (const char *format, ...) | |
1541 | { | |
1542 | char *ret; | |
1543 | va_list args; | |
e0627e85 | 1544 | |
9ebf4acf | 1545 | va_start (args, format); |
e623b504 | 1546 | ret = xstrvprintf (format, args); |
9ebf4acf AC |
1547 | va_end (args); |
1548 | return ret; | |
1549 | } | |
1550 | ||
76995688 AC |
1551 | void |
1552 | xasprintf (char **ret, const char *format, ...) | |
1553 | { | |
1554 | va_list args; | |
e0627e85 | 1555 | |
76995688 | 1556 | va_start (args, format); |
e623b504 | 1557 | (*ret) = xstrvprintf (format, args); |
76995688 AC |
1558 | va_end (args); |
1559 | } | |
1560 | ||
1561 | void | |
1562 | xvasprintf (char **ret, const char *format, va_list ap) | |
1563 | { | |
a552edd9 | 1564 | (*ret) = xstrvprintf (format, ap); |
76995688 AC |
1565 | } |
1566 | ||
e623b504 AC |
1567 | char * |
1568 | xstrvprintf (const char *format, va_list ap) | |
1569 | { | |
1570 | char *ret = NULL; | |
1571 | int status = vasprintf (&ret, format, ap); | |
e0627e85 | 1572 | |
46e9880c DJ |
1573 | /* NULL is returned when there was a memory allocation problem, or |
1574 | any other error (for instance, a bad format string). A negative | |
1575 | status (the printed length) with a non-NULL buffer should never | |
1576 | happen, but just to be sure. */ | |
1577 | if (ret == NULL || status < 0) | |
1578 | internal_error (__FILE__, __LINE__, _("vasprintf call failed")); | |
e623b504 AC |
1579 | return ret; |
1580 | } | |
76995688 | 1581 | |
bde2058d MK |
1582 | int |
1583 | xsnprintf (char *str, size_t size, const char *format, ...) | |
1584 | { | |
1585 | va_list args; | |
1586 | int ret; | |
1587 | ||
1588 | va_start (args, format); | |
1589 | ret = vsnprintf (str, size, format, args); | |
1590 | gdb_assert (ret < size); | |
1591 | va_end (args); | |
1592 | ||
1593 | return ret; | |
1594 | } | |
1595 | ||
c906108c SS |
1596 | /* My replacement for the read system call. |
1597 | Used like `read' but keeps going if `read' returns too soon. */ | |
1598 | ||
1599 | int | |
fba45db2 | 1600 | myread (int desc, char *addr, int len) |
c906108c | 1601 | { |
52f0bd74 | 1602 | int val; |
c906108c SS |
1603 | int orglen = len; |
1604 | ||
1605 | while (len > 0) | |
1606 | { | |
1607 | val = read (desc, addr, len); | |
1608 | if (val < 0) | |
1609 | return val; | |
1610 | if (val == 0) | |
1611 | return orglen - len; | |
1612 | len -= val; | |
1613 | addr += val; | |
1614 | } | |
1615 | return orglen; | |
1616 | } | |
1617 | \f | |
1618 | /* Make a copy of the string at PTR with SIZE characters | |
1619 | (and add a null character at the end in the copy). | |
1620 | Uses malloc to get the space. Returns the address of the copy. */ | |
1621 | ||
1622 | char * | |
5565b556 | 1623 | savestring (const char *ptr, size_t size) |
c906108c | 1624 | { |
52f0bd74 | 1625 | char *p = (char *) xmalloc (size + 1); |
e0627e85 | 1626 | |
c906108c SS |
1627 | memcpy (p, ptr, size); |
1628 | p[size] = 0; | |
1629 | return p; | |
1630 | } | |
1631 | ||
c906108c | 1632 | void |
aa1ee363 | 1633 | print_spaces (int n, struct ui_file *file) |
c906108c | 1634 | { |
392a587b | 1635 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1636 | } |
1637 | ||
1638 | /* Print a host address. */ | |
1639 | ||
1640 | void | |
ac16bf07 | 1641 | gdb_print_host_address (const void *addr, struct ui_file *stream) |
c906108c | 1642 | { |
ea8992ce | 1643 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 1644 | } |
c906108c | 1645 | \f |
c5aa993b | 1646 | |
dc92e161 TT |
1647 | /* A cleanup function that calls regfree. */ |
1648 | ||
1649 | static void | |
1650 | do_regfree_cleanup (void *r) | |
1651 | { | |
1652 | regfree (r); | |
1653 | } | |
1654 | ||
1655 | /* Create a new cleanup that frees the compiled regular expression R. */ | |
1656 | ||
1657 | struct cleanup * | |
1658 | make_regfree_cleanup (regex_t *r) | |
1659 | { | |
1660 | return make_cleanup (do_regfree_cleanup, r); | |
1661 | } | |
1662 | ||
1663 | /* Return an xmalloc'd error message resulting from a regular | |
1664 | expression compilation failure. */ | |
1665 | ||
1666 | char * | |
1667 | get_regcomp_error (int code, regex_t *rx) | |
1668 | { | |
1669 | size_t length = regerror (code, rx, NULL, 0); | |
1670 | char *result = xmalloc (length); | |
1671 | ||
1672 | regerror (code, rx, result, length); | |
1673 | return result; | |
1674 | } | |
1675 | ||
1676 | \f | |
1677 | ||
981c7f5a | 1678 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 1679 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
1680 | answer is yes, or default the answer to the specified default |
1681 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
1682 | default answer, or '\0' for no default. | |
cbdeadca JJ |
1683 | CTLSTR is the control string and should end in "? ". It should |
1684 | not say how to answer, because we do that. | |
1685 | ARGS are the arguments passed along with the CTLSTR argument to | |
1686 | printf. */ | |
1687 | ||
a0b31db1 | 1688 | static int ATTRIBUTE_PRINTF (1, 0) |
cbdeadca JJ |
1689 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
1690 | { | |
1691 | int answer; | |
1692 | int ans2; | |
1693 | int retval; | |
1694 | int def_value; | |
1695 | char def_answer, not_def_answer; | |
981c7f5a | 1696 | char *y_string, *n_string, *question; |
cbdeadca JJ |
1697 | |
1698 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
1699 | if (defchar == '\0') |
1700 | { | |
1701 | def_value = 1; | |
1702 | def_answer = 'Y'; | |
1703 | not_def_answer = 'N'; | |
1704 | y_string = "y"; | |
1705 | n_string = "n"; | |
1706 | } | |
1707 | else if (defchar == 'y') | |
cbdeadca JJ |
1708 | { |
1709 | def_value = 1; | |
1710 | def_answer = 'Y'; | |
1711 | not_def_answer = 'N'; | |
1712 | y_string = "[y]"; | |
1713 | n_string = "n"; | |
1714 | } | |
1715 | else | |
1716 | { | |
1717 | def_value = 0; | |
1718 | def_answer = 'N'; | |
1719 | not_def_answer = 'Y'; | |
1720 | y_string = "y"; | |
1721 | n_string = "[n]"; | |
1722 | } | |
1723 | ||
981c7f5a | 1724 | /* Automatically answer the default value if the user did not want |
a502cf95 NR |
1725 | prompts or the command was issued with the server prefix. */ |
1726 | if (! caution || server_command) | |
981c7f5a DJ |
1727 | return def_value; |
1728 | ||
1729 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 1730 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
1731 | way, important error messages don't get lost when talking to GDB |
1732 | over a pipe. */ | |
c63a1f86 | 1733 | if (! input_from_terminal_p ()) |
981c7f5a DJ |
1734 | { |
1735 | wrap_here (""); | |
1736 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1737 | ||
3e43a32a MS |
1738 | printf_filtered (_("(%s or %s) [answered %c; " |
1739 | "input not from terminal]\n"), | |
981c7f5a DJ |
1740 | y_string, n_string, def_answer); |
1741 | gdb_flush (gdb_stdout); | |
1742 | ||
1743 | return def_value; | |
1744 | } | |
1745 | ||
9a4105ab | 1746 | if (deprecated_query_hook) |
cbdeadca | 1747 | { |
9a4105ab | 1748 | return deprecated_query_hook (ctlstr, args); |
cbdeadca JJ |
1749 | } |
1750 | ||
981c7f5a DJ |
1751 | /* Format the question outside of the loop, to avoid reusing args. */ |
1752 | question = xstrvprintf (ctlstr, args); | |
1753 | ||
cbdeadca JJ |
1754 | while (1) |
1755 | { | |
581e13c1 | 1756 | wrap_here (""); /* Flush any buffered output. */ |
cbdeadca JJ |
1757 | gdb_flush (gdb_stdout); |
1758 | ||
1759 | if (annotation_level > 1) | |
a3f17187 | 1760 | printf_filtered (("\n\032\032pre-query\n")); |
cbdeadca | 1761 | |
981c7f5a | 1762 | fputs_filtered (question, gdb_stdout); |
a3f17187 | 1763 | printf_filtered (_("(%s or %s) "), y_string, n_string); |
cbdeadca JJ |
1764 | |
1765 | if (annotation_level > 1) | |
a3f17187 | 1766 | printf_filtered (("\n\032\032query\n")); |
cbdeadca JJ |
1767 | |
1768 | wrap_here (""); | |
1769 | gdb_flush (gdb_stdout); | |
1770 | ||
1771 | answer = fgetc (stdin); | |
8626589c JB |
1772 | |
1773 | /* We expect fgetc to block until a character is read. But | |
1774 | this may not be the case if the terminal was opened with | |
1775 | the NONBLOCK flag. In that case, if there is nothing to | |
1776 | read on stdin, fgetc returns EOF, but also sets the error | |
1777 | condition flag on stdin and errno to EAGAIN. With a true | |
1778 | EOF, stdin's error condition flag is not set. | |
1779 | ||
1780 | A situation where this behavior was observed is a pseudo | |
1781 | terminal on AIX. */ | |
1782 | while (answer == EOF && ferror (stdin) && errno == EAGAIN) | |
1783 | { | |
1784 | /* Not a real EOF. Wait a little while and try again until | |
1785 | we read something. */ | |
1786 | clearerr (stdin); | |
1787 | gdb_usleep (10000); | |
1788 | answer = fgetc (stdin); | |
1789 | } | |
1790 | ||
cbdeadca JJ |
1791 | clearerr (stdin); /* in case of C-d */ |
1792 | if (answer == EOF) /* C-d */ | |
1793 | { | |
fa3fd85b | 1794 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
1795 | retval = def_value; |
1796 | break; | |
1797 | } | |
581e13c1 | 1798 | /* Eat rest of input line, to EOF or newline. */ |
cbdeadca JJ |
1799 | if (answer != '\n') |
1800 | do | |
1801 | { | |
1802 | ans2 = fgetc (stdin); | |
1803 | clearerr (stdin); | |
1804 | } | |
1805 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); | |
1806 | ||
1807 | if (answer >= 'a') | |
1808 | answer -= 040; | |
1809 | /* Check answer. For the non-default, the user must specify | |
1810 | the non-default explicitly. */ | |
1811 | if (answer == not_def_answer) | |
1812 | { | |
1813 | retval = !def_value; | |
1814 | break; | |
1815 | } | |
981c7f5a DJ |
1816 | /* Otherwise, if a default was specified, the user may either |
1817 | specify the required input or have it default by entering | |
1818 | nothing. */ | |
1819 | if (answer == def_answer | |
1820 | || (defchar != '\0' && | |
1821 | (answer == '\n' || answer == '\r' || answer == EOF))) | |
cbdeadca JJ |
1822 | { |
1823 | retval = def_value; | |
1824 | break; | |
1825 | } | |
1826 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 1827 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
1828 | y_string, n_string); |
1829 | } | |
1830 | ||
981c7f5a | 1831 | xfree (question); |
cbdeadca | 1832 | if (annotation_level > 1) |
a3f17187 | 1833 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
1834 | return retval; |
1835 | } | |
1836 | \f | |
1837 | ||
1838 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1839 | answer is yes, or 0 if answer is defaulted. | |
1840 | Takes three args which are given to printf to print the question. | |
1841 | The first, a control string, should end in "? ". | |
1842 | It should not say how to answer, because we do that. */ | |
1843 | ||
1844 | int | |
1845 | nquery (const char *ctlstr, ...) | |
1846 | { | |
1847 | va_list args; | |
899500d6 | 1848 | int ret; |
cbdeadca JJ |
1849 | |
1850 | va_start (args, ctlstr); | |
899500d6 | 1851 | ret = defaulted_query (ctlstr, 'n', args); |
cbdeadca | 1852 | va_end (args); |
899500d6 | 1853 | return ret; |
cbdeadca JJ |
1854 | } |
1855 | ||
1856 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1857 | answer is yes, or 1 if answer is defaulted. | |
1858 | Takes three args which are given to printf to print the question. | |
1859 | The first, a control string, should end in "? ". | |
1860 | It should not say how to answer, because we do that. */ | |
1861 | ||
1862 | int | |
1863 | yquery (const char *ctlstr, ...) | |
1864 | { | |
1865 | va_list args; | |
899500d6 | 1866 | int ret; |
cbdeadca JJ |
1867 | |
1868 | va_start (args, ctlstr); | |
899500d6 | 1869 | ret = defaulted_query (ctlstr, 'y', args); |
cbdeadca | 1870 | va_end (args); |
899500d6 | 1871 | return ret; |
cbdeadca JJ |
1872 | } |
1873 | ||
981c7f5a DJ |
1874 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
1875 | Takes three args which are given to printf to print the question. | |
1876 | The first, a control string, should end in "? ". | |
1877 | It should not say how to answer, because we do that. */ | |
1878 | ||
1879 | int | |
1880 | query (const char *ctlstr, ...) | |
1881 | { | |
1882 | va_list args; | |
899500d6 | 1883 | int ret; |
981c7f5a DJ |
1884 | |
1885 | va_start (args, ctlstr); | |
899500d6 | 1886 | ret = defaulted_query (ctlstr, '\0', args); |
981c7f5a | 1887 | va_end (args); |
899500d6 | 1888 | return ret; |
981c7f5a DJ |
1889 | } |
1890 | ||
6c7a06a3 TT |
1891 | /* A helper for parse_escape that converts a host character to a |
1892 | target character. C is the host character. If conversion is | |
1893 | possible, then the target character is stored in *TARGET_C and the | |
1894 | function returns 1. Otherwise, the function returns 0. */ | |
1895 | ||
1896 | static int | |
f870a310 | 1897 | host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c) |
234b45d4 | 1898 | { |
6c7a06a3 TT |
1899 | struct obstack host_data; |
1900 | char the_char = c; | |
1901 | struct cleanup *cleanups; | |
1902 | int result = 0; | |
234b45d4 | 1903 | |
6c7a06a3 TT |
1904 | obstack_init (&host_data); |
1905 | cleanups = make_cleanup_obstack_free (&host_data); | |
234b45d4 | 1906 | |
f870a310 | 1907 | convert_between_encodings (target_charset (gdbarch), host_charset (), |
6c7a06a3 TT |
1908 | &the_char, 1, 1, &host_data, translit_none); |
1909 | ||
1910 | if (obstack_object_size (&host_data) == 1) | |
1911 | { | |
1912 | result = 1; | |
1913 | *target_c = *(char *) obstack_base (&host_data); | |
1914 | } | |
1915 | ||
1916 | do_cleanups (cleanups); | |
1917 | return result; | |
234b45d4 KB |
1918 | } |
1919 | ||
c906108c SS |
1920 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1921 | containing a pointer to the string to parse. That pointer | |
1922 | should point to the character after the \. That pointer | |
1923 | is updated past the characters we use. The value of the | |
1924 | escape sequence is returned. | |
1925 | ||
1926 | A negative value means the sequence \ newline was seen, | |
1927 | which is supposed to be equivalent to nothing at all. | |
1928 | ||
1929 | If \ is followed by a null character, we return a negative | |
1930 | value and leave the string pointer pointing at the null character. | |
1931 | ||
1932 | If \ is followed by 000, we return 0 and leave the string pointer | |
1933 | after the zeros. A value of 0 does not mean end of string. */ | |
1934 | ||
1935 | int | |
f870a310 | 1936 | parse_escape (struct gdbarch *gdbarch, char **string_ptr) |
c906108c | 1937 | { |
581e13c1 | 1938 | int target_char = -2; /* Initialize to avoid GCC warnings. */ |
52f0bd74 | 1939 | int c = *(*string_ptr)++; |
e0627e85 | 1940 | |
6c7a06a3 TT |
1941 | switch (c) |
1942 | { | |
8731e58e AC |
1943 | case '\n': |
1944 | return -2; | |
1945 | case 0: | |
1946 | (*string_ptr)--; | |
1947 | return 0; | |
8731e58e AC |
1948 | |
1949 | case '0': | |
1950 | case '1': | |
1951 | case '2': | |
1952 | case '3': | |
1953 | case '4': | |
1954 | case '5': | |
1955 | case '6': | |
1956 | case '7': | |
1957 | { | |
6c7a06a3 | 1958 | int i = host_hex_value (c); |
aa1ee363 | 1959 | int count = 0; |
8731e58e AC |
1960 | while (++count < 3) |
1961 | { | |
5cb316ef | 1962 | c = (**string_ptr); |
6c7a06a3 | 1963 | if (isdigit (c) && c != '8' && c != '9') |
8731e58e | 1964 | { |
5cb316ef | 1965 | (*string_ptr)++; |
8731e58e | 1966 | i *= 8; |
6c7a06a3 | 1967 | i += host_hex_value (c); |
8731e58e AC |
1968 | } |
1969 | else | |
1970 | { | |
8731e58e AC |
1971 | break; |
1972 | } | |
1973 | } | |
1974 | return i; | |
1975 | } | |
6c7a06a3 TT |
1976 | |
1977 | case 'a': | |
1978 | c = '\a'; | |
1979 | break; | |
1980 | case 'b': | |
1981 | c = '\b'; | |
1982 | break; | |
1983 | case 'f': | |
1984 | c = '\f'; | |
1985 | break; | |
1986 | case 'n': | |
1987 | c = '\n'; | |
1988 | break; | |
1989 | case 'r': | |
1990 | c = '\r'; | |
1991 | break; | |
1992 | case 't': | |
1993 | c = '\t'; | |
1994 | break; | |
1995 | case 'v': | |
1996 | c = '\v'; | |
1997 | break; | |
1998 | ||
1999 | default: | |
2000 | break; | |
2001 | } | |
2002 | ||
f870a310 | 2003 | if (!host_char_to_target (gdbarch, c, &target_char)) |
3351ea09 JB |
2004 | error (_("The escape sequence `\\%c' is equivalent to plain `%c'," |
2005 | " which has no equivalent\nin the `%s' character set."), | |
905b671b | 2006 | c, c, target_charset (gdbarch)); |
6c7a06a3 | 2007 | return target_char; |
c906108c SS |
2008 | } |
2009 | \f | |
2010 | /* Print the character C on STREAM as part of the contents of a literal | |
2011 | string whose delimiter is QUOTER. Note that this routine should only | |
2012 | be call for printing things which are independent of the language | |
581e13c1 | 2013 | of the program being debugged. */ |
c906108c | 2014 | |
43e526b9 | 2015 | static void |
74f832da | 2016 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
bee0189a DJ |
2017 | void (*do_fprintf) (struct ui_file *, const char *, ...) |
2018 | ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter) | |
c906108c | 2019 | { |
c906108c SS |
2020 | c &= 0xFF; /* Avoid sign bit follies */ |
2021 | ||
c5aa993b JM |
2022 | if (c < 0x20 || /* Low control chars */ |
2023 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
2024 | (sevenbit_strings && c >= 0x80)) | |
2025 | { /* high order bit set */ | |
2026 | switch (c) | |
2027 | { | |
2028 | case '\n': | |
43e526b9 | 2029 | do_fputs ("\\n", stream); |
c5aa993b JM |
2030 | break; |
2031 | case '\b': | |
43e526b9 | 2032 | do_fputs ("\\b", stream); |
c5aa993b JM |
2033 | break; |
2034 | case '\t': | |
43e526b9 | 2035 | do_fputs ("\\t", stream); |
c5aa993b JM |
2036 | break; |
2037 | case '\f': | |
43e526b9 | 2038 | do_fputs ("\\f", stream); |
c5aa993b JM |
2039 | break; |
2040 | case '\r': | |
43e526b9 | 2041 | do_fputs ("\\r", stream); |
c5aa993b JM |
2042 | break; |
2043 | case '\033': | |
43e526b9 | 2044 | do_fputs ("\\e", stream); |
c5aa993b JM |
2045 | break; |
2046 | case '\007': | |
43e526b9 | 2047 | do_fputs ("\\a", stream); |
c5aa993b JM |
2048 | break; |
2049 | default: | |
43e526b9 | 2050 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
2051 | break; |
2052 | } | |
2053 | } | |
2054 | else | |
2055 | { | |
2056 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
2057 | do_fputs ("\\", stream); |
2058 | do_fprintf (stream, "%c", c); | |
c5aa993b | 2059 | } |
c906108c | 2060 | } |
43e526b9 JM |
2061 | |
2062 | /* Print the character C on STREAM as part of the contents of a | |
2063 | literal string whose delimiter is QUOTER. Note that these routines | |
2064 | should only be call for printing things which are independent of | |
581e13c1 | 2065 | the language of the program being debugged. */ |
43e526b9 JM |
2066 | |
2067 | void | |
fba45db2 | 2068 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
2069 | { |
2070 | while (*str) | |
2071 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
2072 | } | |
2073 | ||
2074 | void | |
fba45db2 | 2075 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
2076 | { |
2077 | while (*str) | |
2078 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
2079 | } | |
2080 | ||
0876f84a DJ |
2081 | void |
2082 | fputstrn_filtered (const char *str, int n, int quoter, | |
2083 | struct ui_file *stream) | |
2084 | { | |
2085 | int i; | |
e0627e85 | 2086 | |
0876f84a DJ |
2087 | for (i = 0; i < n; i++) |
2088 | printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter); | |
2089 | } | |
2090 | ||
43e526b9 | 2091 | void |
8731e58e AC |
2092 | fputstrn_unfiltered (const char *str, int n, int quoter, |
2093 | struct ui_file *stream) | |
43e526b9 JM |
2094 | { |
2095 | int i; | |
5d502164 | 2096 | |
43e526b9 JM |
2097 | for (i = 0; i < n; i++) |
2098 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
2099 | } | |
c906108c | 2100 | \f |
c5aa993b | 2101 | |
c906108c SS |
2102 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
2103 | static unsigned int lines_per_page; | |
920d2a44 AC |
2104 | static void |
2105 | show_lines_per_page (struct ui_file *file, int from_tty, | |
2106 | struct cmd_list_element *c, const char *value) | |
2107 | { | |
3e43a32a MS |
2108 | fprintf_filtered (file, |
2109 | _("Number of lines gdb thinks are in a page is %s.\n"), | |
920d2a44 AC |
2110 | value); |
2111 | } | |
eb0d3137 | 2112 | |
cbfbd72a | 2113 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 2114 | static unsigned int chars_per_line; |
920d2a44 AC |
2115 | static void |
2116 | show_chars_per_line (struct ui_file *file, int from_tty, | |
2117 | struct cmd_list_element *c, const char *value) | |
2118 | { | |
3e43a32a MS |
2119 | fprintf_filtered (file, |
2120 | _("Number of characters gdb thinks " | |
2121 | "are in a line is %s.\n"), | |
920d2a44 AC |
2122 | value); |
2123 | } | |
eb0d3137 | 2124 | |
c906108c SS |
2125 | /* Current count of lines printed on this page, chars on this line. */ |
2126 | static unsigned int lines_printed, chars_printed; | |
2127 | ||
2128 | /* Buffer and start column of buffered text, for doing smarter word- | |
2129 | wrapping. When someone calls wrap_here(), we start buffering output | |
2130 | that comes through fputs_filtered(). If we see a newline, we just | |
2131 | spit it out and forget about the wrap_here(). If we see another | |
2132 | wrap_here(), we spit it out and remember the newer one. If we see | |
2133 | the end of the line, we spit out a newline, the indent, and then | |
2134 | the buffered output. */ | |
2135 | ||
2136 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
2137 | are waiting to be output (they have already been counted in chars_printed). | |
2138 | When wrap_buffer[0] is null, the buffer is empty. */ | |
2139 | static char *wrap_buffer; | |
2140 | ||
2141 | /* Pointer in wrap_buffer to the next character to fill. */ | |
2142 | static char *wrap_pointer; | |
2143 | ||
2144 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
2145 | is non-zero. */ | |
2146 | static char *wrap_indent; | |
2147 | ||
2148 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
2149 | is not in effect. */ | |
2150 | static int wrap_column; | |
c906108c | 2151 | \f |
c5aa993b | 2152 | |
eb0d3137 MK |
2153 | /* Inialize the number of lines per page and chars per line. */ |
2154 | ||
c906108c | 2155 | void |
fba45db2 | 2156 | init_page_info (void) |
c906108c | 2157 | { |
5da1313b JK |
2158 | if (batch_flag) |
2159 | { | |
2160 | lines_per_page = UINT_MAX; | |
2161 | chars_per_line = UINT_MAX; | |
2162 | } | |
2163 | else | |
c906108c | 2164 | #if defined(TUI) |
5ecb1806 | 2165 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
2166 | #endif |
2167 | { | |
eb0d3137 | 2168 | int rows, cols; |
c906108c | 2169 | |
ec145965 EZ |
2170 | #if defined(__GO32__) |
2171 | rows = ScreenRows (); | |
2172 | cols = ScreenCols (); | |
2173 | lines_per_page = rows; | |
2174 | chars_per_line = cols; | |
2175 | #else | |
eb0d3137 MK |
2176 | /* Make sure Readline has initialized its terminal settings. */ |
2177 | rl_reset_terminal (NULL); | |
c906108c | 2178 | |
eb0d3137 MK |
2179 | /* Get the screen size from Readline. */ |
2180 | rl_get_screen_size (&rows, &cols); | |
2181 | lines_per_page = rows; | |
2182 | chars_per_line = cols; | |
c906108c | 2183 | |
eb0d3137 MK |
2184 | /* Readline should have fetched the termcap entry for us. */ |
2185 | if (tgetnum ("li") < 0 || getenv ("EMACS")) | |
2186 | { | |
2187 | /* The number of lines per page is not mentioned in the | |
2188 | terminal description. This probably means that paging is | |
2189 | not useful (e.g. emacs shell window), so disable paging. */ | |
2190 | lines_per_page = UINT_MAX; | |
2191 | } | |
c906108c | 2192 | |
eb0d3137 | 2193 | /* FIXME: Get rid of this junk. */ |
c906108c | 2194 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) |
c906108c SS |
2195 | SIGWINCH_HANDLER (SIGWINCH); |
2196 | #endif | |
eb0d3137 | 2197 | |
c906108c | 2198 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 2199 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 2200 | lines_per_page = UINT_MAX; |
eb0d3137 | 2201 | #endif |
ec145965 | 2202 | } |
eb0d3137 MK |
2203 | |
2204 | set_screen_size (); | |
c5aa993b | 2205 | set_width (); |
c906108c SS |
2206 | } |
2207 | ||
5da1313b JK |
2208 | /* Helper for make_cleanup_restore_page_info. */ |
2209 | ||
2210 | static void | |
2211 | do_restore_page_info_cleanup (void *arg) | |
2212 | { | |
2213 | set_screen_size (); | |
2214 | set_width (); | |
2215 | } | |
2216 | ||
2217 | /* Provide cleanup for restoring the terminal size. */ | |
2218 | ||
2219 | struct cleanup * | |
2220 | make_cleanup_restore_page_info (void) | |
2221 | { | |
2222 | struct cleanup *back_to; | |
2223 | ||
2224 | back_to = make_cleanup (do_restore_page_info_cleanup, NULL); | |
2225 | make_cleanup_restore_uinteger (&lines_per_page); | |
2226 | make_cleanup_restore_uinteger (&chars_per_line); | |
2227 | ||
2228 | return back_to; | |
2229 | } | |
2230 | ||
2231 | /* Temporarily set BATCH_FLAG and the associated unlimited terminal size. | |
2232 | Provide cleanup for restoring the original state. */ | |
2233 | ||
2234 | struct cleanup * | |
2235 | set_batch_flag_and_make_cleanup_restore_page_info (void) | |
2236 | { | |
2237 | struct cleanup *back_to = make_cleanup_restore_page_info (); | |
2238 | ||
2239 | make_cleanup_restore_integer (&batch_flag); | |
2240 | batch_flag = 1; | |
2241 | init_page_info (); | |
2242 | ||
2243 | return back_to; | |
2244 | } | |
2245 | ||
eb0d3137 MK |
2246 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
2247 | ||
2248 | static void | |
2249 | set_screen_size (void) | |
2250 | { | |
2251 | int rows = lines_per_page; | |
2252 | int cols = chars_per_line; | |
2253 | ||
2254 | if (rows <= 0) | |
2255 | rows = INT_MAX; | |
2256 | ||
2257 | if (cols <= 0) | |
0caa462c | 2258 | cols = INT_MAX; |
eb0d3137 MK |
2259 | |
2260 | /* Update Readline's idea of the terminal size. */ | |
2261 | rl_set_screen_size (rows, cols); | |
2262 | } | |
2263 | ||
2264 | /* Reinitialize WRAP_BUFFER according to the current value of | |
2265 | CHARS_PER_LINE. */ | |
2266 | ||
c906108c | 2267 | static void |
fba45db2 | 2268 | set_width (void) |
c906108c SS |
2269 | { |
2270 | if (chars_per_line == 0) | |
c5aa993b | 2271 | init_page_info (); |
c906108c SS |
2272 | |
2273 | if (!wrap_buffer) | |
2274 | { | |
2275 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
2276 | wrap_buffer[0] = '\0'; | |
2277 | } | |
2278 | else | |
2279 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 2280 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
2281 | } |
2282 | ||
c5aa993b | 2283 | static void |
fba45db2 | 2284 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 2285 | { |
eb0d3137 | 2286 | set_screen_size (); |
c906108c SS |
2287 | set_width (); |
2288 | } | |
2289 | ||
eb0d3137 MK |
2290 | static void |
2291 | set_height_command (char *args, int from_tty, struct cmd_list_element *c) | |
2292 | { | |
2293 | set_screen_size (); | |
2294 | } | |
2295 | ||
c906108c SS |
2296 | /* Wait, so the user can read what's on the screen. Prompt the user |
2297 | to continue by pressing RETURN. */ | |
2298 | ||
2299 | static void | |
fba45db2 | 2300 | prompt_for_continue (void) |
c906108c SS |
2301 | { |
2302 | char *ignore; | |
2303 | char cont_prompt[120]; | |
2304 | ||
2305 | if (annotation_level > 1) | |
a3f17187 | 2306 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
2307 | |
2308 | strcpy (cont_prompt, | |
2309 | "---Type <return> to continue, or q <return> to quit---"); | |
2310 | if (annotation_level > 1) | |
2311 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
2312 | ||
2313 | /* We must do this *before* we call gdb_readline, else it will eventually | |
2314 | call us -- thinking that we're trying to print beyond the end of the | |
2315 | screen. */ | |
2316 | reinitialize_more_filter (); | |
2317 | ||
2318 | immediate_quit++; | |
2319 | /* On a real operating system, the user can quit with SIGINT. | |
2320 | But not on GO32. | |
2321 | ||
2322 | 'q' is provided on all systems so users don't have to change habits | |
2323 | from system to system, and because telling them what to do in | |
2324 | the prompt is more user-friendly than expecting them to think of | |
2325 | SIGINT. */ | |
2326 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
2327 | whereas control-C to gdb_readline will cause the user to get dumped | |
2328 | out to DOS. */ | |
b4f5539f | 2329 | ignore = gdb_readline_wrapper (cont_prompt); |
c906108c SS |
2330 | |
2331 | if (annotation_level > 1) | |
a3f17187 | 2332 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c SS |
2333 | |
2334 | if (ignore) | |
2335 | { | |
2336 | char *p = ignore; | |
5d502164 | 2337 | |
c906108c SS |
2338 | while (*p == ' ' || *p == '\t') |
2339 | ++p; | |
2340 | if (p[0] == 'q') | |
362646f5 | 2341 | async_request_quit (0); |
b8c9b27d | 2342 | xfree (ignore); |
c906108c SS |
2343 | } |
2344 | immediate_quit--; | |
2345 | ||
2346 | /* Now we have to do this again, so that GDB will know that it doesn't | |
2347 | need to save the ---Type <return>--- line at the top of the screen. */ | |
2348 | reinitialize_more_filter (); | |
2349 | ||
581e13c1 | 2350 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ |
c906108c SS |
2351 | } |
2352 | ||
2353 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
2354 | ||
2355 | void | |
fba45db2 | 2356 | reinitialize_more_filter (void) |
c906108c SS |
2357 | { |
2358 | lines_printed = 0; | |
2359 | chars_printed = 0; | |
2360 | } | |
2361 | ||
2362 | /* Indicate that if the next sequence of characters overflows the line, | |
581e13c1 | 2363 | a newline should be inserted here rather than when it hits the end. |
c906108c SS |
2364 | If INDENT is non-null, it is a string to be printed to indent the |
2365 | wrapped part on the next line. INDENT must remain accessible until | |
2366 | the next call to wrap_here() or until a newline is printed through | |
2367 | fputs_filtered(). | |
2368 | ||
2369 | If the line is already overfull, we immediately print a newline and | |
2370 | the indentation, and disable further wrapping. | |
2371 | ||
2372 | If we don't know the width of lines, but we know the page height, | |
2373 | we must not wrap words, but should still keep track of newlines | |
2374 | that were explicitly printed. | |
2375 | ||
2376 | INDENT should not contain tabs, as that will mess up the char count | |
2377 | on the next line. FIXME. | |
2378 | ||
2379 | This routine is guaranteed to force out any output which has been | |
2380 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
2381 | used to force out output from the wrap_buffer. */ | |
2382 | ||
2383 | void | |
fba45db2 | 2384 | wrap_here (char *indent) |
c906108c | 2385 | { |
581e13c1 | 2386 | /* This should have been allocated, but be paranoid anyway. */ |
c906108c | 2387 | if (!wrap_buffer) |
3e43a32a MS |
2388 | internal_error (__FILE__, __LINE__, |
2389 | _("failed internal consistency check")); | |
c906108c SS |
2390 | |
2391 | if (wrap_buffer[0]) | |
2392 | { | |
2393 | *wrap_pointer = '\0'; | |
2394 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
2395 | } | |
2396 | wrap_pointer = wrap_buffer; | |
2397 | wrap_buffer[0] = '\0'; | |
3e43a32a | 2398 | if (chars_per_line == UINT_MAX) /* No line overflow checking. */ |
c906108c SS |
2399 | { |
2400 | wrap_column = 0; | |
2401 | } | |
2402 | else if (chars_printed >= chars_per_line) | |
2403 | { | |
2404 | puts_filtered ("\n"); | |
2405 | if (indent != NULL) | |
2406 | puts_filtered (indent); | |
2407 | wrap_column = 0; | |
2408 | } | |
2409 | else | |
2410 | { | |
2411 | wrap_column = chars_printed; | |
2412 | if (indent == NULL) | |
2413 | wrap_indent = ""; | |
2414 | else | |
2415 | wrap_indent = indent; | |
2416 | } | |
2417 | } | |
2418 | ||
4a351cef | 2419 | /* Print input string to gdb_stdout, filtered, with wrap, |
581e13c1 | 2420 | arranging strings in columns of n chars. String can be |
4a351cef AF |
2421 | right or left justified in the column. Never prints |
2422 | trailing spaces. String should never be longer than | |
2423 | width. FIXME: this could be useful for the EXAMINE | |
581e13c1 | 2424 | command, which currently doesn't tabulate very well. */ |
4a351cef AF |
2425 | |
2426 | void | |
2427 | puts_filtered_tabular (char *string, int width, int right) | |
2428 | { | |
2429 | int spaces = 0; | |
2430 | int stringlen; | |
2431 | char *spacebuf; | |
2432 | ||
2433 | gdb_assert (chars_per_line > 0); | |
2434 | if (chars_per_line == UINT_MAX) | |
2435 | { | |
2436 | fputs_filtered (string, gdb_stdout); | |
2437 | fputs_filtered ("\n", gdb_stdout); | |
2438 | return; | |
2439 | } | |
2440 | ||
2441 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
2442 | fputs_filtered ("\n", gdb_stdout); | |
2443 | ||
2444 | if (width >= chars_per_line) | |
2445 | width = chars_per_line - 1; | |
2446 | ||
2447 | stringlen = strlen (string); | |
2448 | ||
2449 | if (chars_printed > 0) | |
2450 | spaces = width - (chars_printed - 1) % width - 1; | |
2451 | if (right) | |
2452 | spaces += width - stringlen; | |
2453 | ||
2454 | spacebuf = alloca (spaces + 1); | |
2455 | spacebuf[spaces] = '\0'; | |
2456 | while (spaces--) | |
2457 | spacebuf[spaces] = ' '; | |
2458 | ||
2459 | fputs_filtered (spacebuf, gdb_stdout); | |
2460 | fputs_filtered (string, gdb_stdout); | |
2461 | } | |
2462 | ||
2463 | ||
c906108c | 2464 | /* Ensure that whatever gets printed next, using the filtered output |
581e13c1 | 2465 | commands, starts at the beginning of the line. I.e. if there is |
c906108c | 2466 | any pending output for the current line, flush it and start a new |
581e13c1 | 2467 | line. Otherwise do nothing. */ |
c906108c SS |
2468 | |
2469 | void | |
fba45db2 | 2470 | begin_line (void) |
c906108c SS |
2471 | { |
2472 | if (chars_printed > 0) | |
2473 | { | |
2474 | puts_filtered ("\n"); | |
2475 | } | |
2476 | } | |
2477 | ||
ac9a91a7 | 2478 | |
c906108c SS |
2479 | /* Like fputs but if FILTER is true, pause after every screenful. |
2480 | ||
2481 | Regardless of FILTER can wrap at points other than the final | |
2482 | character of a line. | |
2483 | ||
2484 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
2485 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
2486 | anything. | |
2487 | ||
2488 | Note that a longjmp to top level may occur in this routine (only if | |
2489 | FILTER is true) (since prompt_for_continue may do so) so this | |
2490 | routine should not be called when cleanups are not in place. */ | |
2491 | ||
2492 | static void | |
fba45db2 KB |
2493 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
2494 | int filter) | |
c906108c SS |
2495 | { |
2496 | const char *lineptr; | |
2497 | ||
2498 | if (linebuffer == 0) | |
2499 | return; | |
2500 | ||
2501 | /* Don't do any filtering if it is disabled. */ | |
390a8aca | 2502 | if (stream != gdb_stdout |
c63a1f86 JK |
2503 | || ! pagination_enabled |
2504 | || ! input_from_terminal_p () | |
390a8aca | 2505 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) |
58dadb1b | 2506 | || top_level_interpreter () == NULL |
390a8aca | 2507 | || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) |
c906108c SS |
2508 | { |
2509 | fputs_unfiltered (linebuffer, stream); | |
2510 | return; | |
2511 | } | |
2512 | ||
2513 | /* Go through and output each character. Show line extension | |
2514 | when this is necessary; prompt user for new page when this is | |
2515 | necessary. */ | |
c5aa993b | 2516 | |
c906108c SS |
2517 | lineptr = linebuffer; |
2518 | while (*lineptr) | |
2519 | { | |
2520 | /* Possible new page. */ | |
8731e58e | 2521 | if (filter && (lines_printed >= lines_per_page - 1)) |
c906108c SS |
2522 | prompt_for_continue (); |
2523 | ||
2524 | while (*lineptr && *lineptr != '\n') | |
2525 | { | |
2526 | /* Print a single line. */ | |
2527 | if (*lineptr == '\t') | |
2528 | { | |
2529 | if (wrap_column) | |
2530 | *wrap_pointer++ = '\t'; | |
2531 | else | |
2532 | fputc_unfiltered ('\t', stream); | |
2533 | /* Shifting right by 3 produces the number of tab stops | |
2534 | we have already passed, and then adding one and | |
c5aa993b | 2535 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
2536 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
2537 | lineptr++; | |
2538 | } | |
2539 | else | |
2540 | { | |
2541 | if (wrap_column) | |
2542 | *wrap_pointer++ = *lineptr; | |
2543 | else | |
c5aa993b | 2544 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
2545 | chars_printed++; |
2546 | lineptr++; | |
2547 | } | |
c5aa993b | 2548 | |
c906108c SS |
2549 | if (chars_printed >= chars_per_line) |
2550 | { | |
2551 | unsigned int save_chars = chars_printed; | |
2552 | ||
2553 | chars_printed = 0; | |
2554 | lines_printed++; | |
2555 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
2556 | if chars_per_line is right, we probably just overflowed |
2557 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
2558 | if (wrap_column) |
2559 | fputc_unfiltered ('\n', stream); | |
2560 | ||
2561 | /* Possible new page. */ | |
2562 | if (lines_printed >= lines_per_page - 1) | |
2563 | prompt_for_continue (); | |
2564 | ||
581e13c1 | 2565 | /* Now output indentation and wrapped string. */ |
c906108c SS |
2566 | if (wrap_column) |
2567 | { | |
2568 | fputs_unfiltered (wrap_indent, stream); | |
581e13c1 MS |
2569 | *wrap_pointer = '\0'; /* Null-terminate saved stuff, */ |
2570 | fputs_unfiltered (wrap_buffer, stream); /* and eject it. */ | |
c906108c SS |
2571 | /* FIXME, this strlen is what prevents wrap_indent from |
2572 | containing tabs. However, if we recurse to print it | |
2573 | and count its chars, we risk trouble if wrap_indent is | |
581e13c1 | 2574 | longer than (the user settable) chars_per_line. |
c906108c SS |
2575 | Note also that this can set chars_printed > chars_per_line |
2576 | if we are printing a long string. */ | |
2577 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 2578 | + (save_chars - wrap_column); |
c906108c SS |
2579 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
2580 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
2581 | wrap_column = 0; /* And disable fancy wrap */ |
2582 | } | |
c906108c SS |
2583 | } |
2584 | } | |
2585 | ||
2586 | if (*lineptr == '\n') | |
2587 | { | |
2588 | chars_printed = 0; | |
3e43a32a MS |
2589 | wrap_here ((char *) 0); /* Spit out chars, cancel |
2590 | further wraps. */ | |
c906108c SS |
2591 | lines_printed++; |
2592 | fputc_unfiltered ('\n', stream); | |
2593 | lineptr++; | |
2594 | } | |
2595 | } | |
2596 | } | |
2597 | ||
2598 | void | |
fba45db2 | 2599 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
2600 | { |
2601 | fputs_maybe_filtered (linebuffer, stream, 1); | |
2602 | } | |
2603 | ||
2604 | int | |
fba45db2 | 2605 | putchar_unfiltered (int c) |
c906108c | 2606 | { |
11cf8741 | 2607 | char buf = c; |
e0627e85 | 2608 | |
d9fcf2fb | 2609 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
2610 | return c; |
2611 | } | |
2612 | ||
d1f4cff8 AC |
2613 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
2614 | May return nonlocally. */ | |
2615 | ||
2616 | int | |
2617 | putchar_filtered (int c) | |
2618 | { | |
2619 | return fputc_filtered (c, gdb_stdout); | |
2620 | } | |
2621 | ||
c906108c | 2622 | int |
fba45db2 | 2623 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 2624 | { |
11cf8741 | 2625 | char buf = c; |
e0627e85 | 2626 | |
d9fcf2fb | 2627 | ui_file_write (stream, &buf, 1); |
c906108c SS |
2628 | return c; |
2629 | } | |
2630 | ||
2631 | int | |
fba45db2 | 2632 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
2633 | { |
2634 | char buf[2]; | |
2635 | ||
2636 | buf[0] = c; | |
2637 | buf[1] = 0; | |
2638 | fputs_filtered (buf, stream); | |
2639 | return c; | |
2640 | } | |
2641 | ||
2642 | /* puts_debug is like fputs_unfiltered, except it prints special | |
2643 | characters in printable fashion. */ | |
2644 | ||
2645 | void | |
fba45db2 | 2646 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
2647 | { |
2648 | int ch; | |
2649 | ||
2650 | /* Print prefix and suffix after each line. */ | |
2651 | static int new_line = 1; | |
2652 | static int return_p = 0; | |
2653 | static char *prev_prefix = ""; | |
2654 | static char *prev_suffix = ""; | |
2655 | ||
2656 | if (*string == '\n') | |
2657 | return_p = 0; | |
2658 | ||
2659 | /* If the prefix is changing, print the previous suffix, a new line, | |
2660 | and the new prefix. */ | |
c5aa993b | 2661 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2662 | { |
9846de1b JM |
2663 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2664 | fputs_unfiltered ("\n", gdb_stdlog); | |
2665 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2666 | } |
2667 | ||
2668 | /* Print prefix if we printed a newline during the previous call. */ | |
2669 | if (new_line) | |
2670 | { | |
2671 | new_line = 0; | |
9846de1b | 2672 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2673 | } |
2674 | ||
2675 | prev_prefix = prefix; | |
2676 | prev_suffix = suffix; | |
2677 | ||
2678 | /* Output characters in a printable format. */ | |
2679 | while ((ch = *string++) != '\0') | |
2680 | { | |
2681 | switch (ch) | |
c5aa993b | 2682 | { |
c906108c SS |
2683 | default: |
2684 | if (isprint (ch)) | |
9846de1b | 2685 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2686 | |
2687 | else | |
9846de1b | 2688 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2689 | break; |
2690 | ||
c5aa993b JM |
2691 | case '\\': |
2692 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2693 | break; | |
2694 | case '\b': | |
2695 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2696 | break; | |
2697 | case '\f': | |
2698 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2699 | break; | |
2700 | case '\n': | |
2701 | new_line = 1; | |
2702 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2703 | break; | |
2704 | case '\r': | |
2705 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2706 | break; | |
2707 | case '\t': | |
2708 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2709 | break; | |
2710 | case '\v': | |
2711 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2712 | break; | |
2713 | } | |
c906108c SS |
2714 | |
2715 | return_p = ch == '\r'; | |
2716 | } | |
2717 | ||
2718 | /* Print suffix if we printed a newline. */ | |
2719 | if (new_line) | |
2720 | { | |
9846de1b JM |
2721 | fputs_unfiltered (suffix, gdb_stdlog); |
2722 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2723 | } |
2724 | } | |
2725 | ||
2726 | ||
2727 | /* Print a variable number of ARGS using format FORMAT. If this | |
2728 | information is going to put the amount written (since the last call | |
2729 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2730 | call prompt_for_continue to get the users permision to continue. | |
2731 | ||
2732 | Unlike fprintf, this function does not return a value. | |
2733 | ||
2734 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2735 | fprintf (takes a stream to write on), and printf (the usual). | |
2736 | ||
2737 | Note also that a longjmp to top level may occur in this routine | |
2738 | (since prompt_for_continue may do so) so this routine should not be | |
2739 | called when cleanups are not in place. */ | |
2740 | ||
2741 | static void | |
fba45db2 KB |
2742 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2743 | va_list args, int filter) | |
c906108c SS |
2744 | { |
2745 | char *linebuffer; | |
2746 | struct cleanup *old_cleanups; | |
2747 | ||
e623b504 | 2748 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2749 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2750 | fputs_maybe_filtered (linebuffer, stream, filter); |
2751 | do_cleanups (old_cleanups); | |
2752 | } | |
2753 | ||
2754 | ||
2755 | void | |
fba45db2 | 2756 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2757 | { |
2758 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2759 | } | |
2760 | ||
2761 | void | |
fba45db2 | 2762 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2763 | { |
2764 | char *linebuffer; | |
2765 | struct cleanup *old_cleanups; | |
2766 | ||
e623b504 | 2767 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2768 | old_cleanups = make_cleanup (xfree, linebuffer); |
75feb17d DJ |
2769 | if (debug_timestamp && stream == gdb_stdlog) |
2770 | { | |
2771 | struct timeval tm; | |
2772 | char *timestamp; | |
6e5abd65 | 2773 | int len, need_nl; |
75feb17d DJ |
2774 | |
2775 | gettimeofday (&tm, NULL); | |
6e5abd65 PA |
2776 | |
2777 | len = strlen (linebuffer); | |
2778 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); | |
2779 | ||
2780 | timestamp = xstrprintf ("%ld:%ld %s%s", | |
2781 | (long) tm.tv_sec, (long) tm.tv_usec, | |
2782 | linebuffer, | |
2783 | need_nl ? "\n": ""); | |
75feb17d DJ |
2784 | make_cleanup (xfree, timestamp); |
2785 | fputs_unfiltered (timestamp, stream); | |
2786 | } | |
6e5abd65 PA |
2787 | else |
2788 | fputs_unfiltered (linebuffer, stream); | |
c906108c SS |
2789 | do_cleanups (old_cleanups); |
2790 | } | |
2791 | ||
2792 | void | |
fba45db2 | 2793 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2794 | { |
2795 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2796 | } | |
2797 | ||
2798 | void | |
fba45db2 | 2799 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2800 | { |
2801 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2802 | } | |
2803 | ||
c906108c | 2804 | void |
8731e58e | 2805 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2806 | { |
2807 | va_list args; | |
e0627e85 | 2808 | |
c906108c | 2809 | va_start (args, format); |
c906108c SS |
2810 | vfprintf_filtered (stream, format, args); |
2811 | va_end (args); | |
2812 | } | |
2813 | ||
c906108c | 2814 | void |
8731e58e | 2815 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2816 | { |
2817 | va_list args; | |
e0627e85 | 2818 | |
c906108c | 2819 | va_start (args, format); |
c906108c SS |
2820 | vfprintf_unfiltered (stream, format, args); |
2821 | va_end (args); | |
2822 | } | |
2823 | ||
2824 | /* Like fprintf_filtered, but prints its result indented. | |
2825 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2826 | ||
c906108c | 2827 | void |
8731e58e AC |
2828 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2829 | ...) | |
c906108c SS |
2830 | { |
2831 | va_list args; | |
e0627e85 | 2832 | |
c906108c | 2833 | va_start (args, format); |
c906108c SS |
2834 | print_spaces_filtered (spaces, stream); |
2835 | ||
2836 | vfprintf_filtered (stream, format, args); | |
2837 | va_end (args); | |
2838 | } | |
2839 | ||
2840 | ||
c906108c | 2841 | void |
8731e58e | 2842 | printf_filtered (const char *format, ...) |
c906108c SS |
2843 | { |
2844 | va_list args; | |
e0627e85 | 2845 | |
c906108c | 2846 | va_start (args, format); |
c906108c SS |
2847 | vfprintf_filtered (gdb_stdout, format, args); |
2848 | va_end (args); | |
2849 | } | |
2850 | ||
2851 | ||
c906108c | 2852 | void |
8731e58e | 2853 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2854 | { |
2855 | va_list args; | |
e0627e85 | 2856 | |
c906108c | 2857 | va_start (args, format); |
c906108c SS |
2858 | vfprintf_unfiltered (gdb_stdout, format, args); |
2859 | va_end (args); | |
2860 | } | |
2861 | ||
2862 | /* Like printf_filtered, but prints it's result indented. | |
2863 | Called as printfi_filtered (spaces, format, ...); */ | |
2864 | ||
c906108c | 2865 | void |
8731e58e | 2866 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2867 | { |
2868 | va_list args; | |
e0627e85 | 2869 | |
c906108c | 2870 | va_start (args, format); |
c906108c SS |
2871 | print_spaces_filtered (spaces, gdb_stdout); |
2872 | vfprintf_filtered (gdb_stdout, format, args); | |
2873 | va_end (args); | |
2874 | } | |
2875 | ||
2876 | /* Easy -- but watch out! | |
2877 | ||
2878 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2879 | This one doesn't, and had better not! */ | |
2880 | ||
2881 | void | |
fba45db2 | 2882 | puts_filtered (const char *string) |
c906108c SS |
2883 | { |
2884 | fputs_filtered (string, gdb_stdout); | |
2885 | } | |
2886 | ||
2887 | void | |
fba45db2 | 2888 | puts_unfiltered (const char *string) |
c906108c SS |
2889 | { |
2890 | fputs_unfiltered (string, gdb_stdout); | |
2891 | } | |
2892 | ||
2893 | /* Return a pointer to N spaces and a null. The pointer is good | |
2894 | until the next call to here. */ | |
2895 | char * | |
fba45db2 | 2896 | n_spaces (int n) |
c906108c | 2897 | { |
392a587b JM |
2898 | char *t; |
2899 | static char *spaces = 0; | |
2900 | static int max_spaces = -1; | |
c906108c SS |
2901 | |
2902 | if (n > max_spaces) | |
2903 | { | |
2904 | if (spaces) | |
b8c9b27d | 2905 | xfree (spaces); |
c5aa993b JM |
2906 | spaces = (char *) xmalloc (n + 1); |
2907 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2908 | *--t = ' '; |
2909 | spaces[n] = '\0'; | |
2910 | max_spaces = n; | |
2911 | } | |
2912 | ||
2913 | return spaces + max_spaces - n; | |
2914 | } | |
2915 | ||
2916 | /* Print N spaces. */ | |
2917 | void | |
fba45db2 | 2918 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2919 | { |
2920 | fputs_filtered (n_spaces (n), stream); | |
2921 | } | |
2922 | \f | |
4a351cef | 2923 | /* C++/ObjC demangler stuff. */ |
c906108c | 2924 | |
389e51db AC |
2925 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2926 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2927 | If the name is not mangled, or the language for the name is unknown, or | |
581e13c1 | 2928 | demangling is off, the name is printed in its "raw" form. */ |
c906108c SS |
2929 | |
2930 | void | |
8731e58e AC |
2931 | fprintf_symbol_filtered (struct ui_file *stream, char *name, |
2932 | enum language lang, int arg_mode) | |
c906108c SS |
2933 | { |
2934 | char *demangled; | |
2935 | ||
2936 | if (name != NULL) | |
2937 | { | |
2938 | /* If user wants to see raw output, no problem. */ | |
2939 | if (!demangle) | |
2940 | { | |
2941 | fputs_filtered (name, stream); | |
2942 | } | |
2943 | else | |
2944 | { | |
9a3d7dfd | 2945 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2946 | fputs_filtered (demangled ? demangled : name, stream); |
2947 | if (demangled != NULL) | |
2948 | { | |
b8c9b27d | 2949 | xfree (demangled); |
c906108c SS |
2950 | } |
2951 | } | |
2952 | } | |
2953 | } | |
2954 | ||
2955 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2956 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2957 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2958 | |
c906108c SS |
2959 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2960 | This "feature" is useful when searching for matching C++ function names | |
2961 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
581e13c1 | 2962 | function). */ |
c906108c SS |
2963 | |
2964 | int | |
fba45db2 | 2965 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2966 | { |
2967 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2968 | { | |
2969 | while (isspace (*string1)) | |
2970 | { | |
2971 | string1++; | |
2972 | } | |
2973 | while (isspace (*string2)) | |
2974 | { | |
2975 | string2++; | |
2976 | } | |
2977 | if (*string1 != *string2) | |
2978 | { | |
2979 | break; | |
2980 | } | |
2981 | if (*string1 != '\0') | |
2982 | { | |
2983 | string1++; | |
2984 | string2++; | |
2985 | } | |
2986 | } | |
2987 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2988 | } | |
2de7ced7 | 2989 | |
0fe19209 DC |
2990 | /* This is like strcmp except that it ignores whitespace and treats |
2991 | '(' as the first non-NULL character in terms of ordering. Like | |
2992 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2993 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2994 | according to that ordering. | |
2995 | ||
2996 | If a list is sorted according to this function and if you want to | |
2997 | find names in the list that match some fixed NAME according to | |
2998 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2999 | where this function would put NAME. | |
3000 | ||
3001 | Here are some examples of why using strcmp to sort is a bad idea: | |
3002 | ||
3003 | Whitespace example: | |
3004 | ||
3005 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
3006 | we try to do a search for "foo<char*>", strcmp will locate this | |
3007 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
3008 | will start looking at strings beginning with "goo", and will never | |
3009 | see the correct match of "foo<char *>". | |
3010 | ||
3011 | Parenthesis example: | |
3012 | ||
3013 | In practice, this is less like to be an issue, but I'll give it a | |
3014 | shot. Let's assume that '$' is a legitimate character to occur in | |
3015 | symbols. (Which may well even be the case on some systems.) Then | |
3016 | say that the partial symbol table contains "foo$" and "foo(int)". | |
3017 | strcmp will put them in this order, since '$' < '('. Now, if the | |
3018 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
3019 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
3020 | "foo") is false, so it won't proceed to the actual match of | |
3021 | "foo(int)" with "foo". */ | |
3022 | ||
3023 | int | |
3024 | strcmp_iw_ordered (const char *string1, const char *string2) | |
3025 | { | |
3026 | while ((*string1 != '\0') && (*string2 != '\0')) | |
3027 | { | |
3028 | while (isspace (*string1)) | |
3029 | { | |
3030 | string1++; | |
3031 | } | |
3032 | while (isspace (*string2)) | |
3033 | { | |
3034 | string2++; | |
3035 | } | |
3036 | if (*string1 != *string2) | |
3037 | { | |
3038 | break; | |
3039 | } | |
3040 | if (*string1 != '\0') | |
3041 | { | |
3042 | string1++; | |
3043 | string2++; | |
3044 | } | |
3045 | } | |
3046 | ||
3047 | switch (*string1) | |
3048 | { | |
3049 | /* Characters are non-equal unless they're both '\0'; we want to | |
3050 | make sure we get the comparison right according to our | |
3051 | comparison in the cases where one of them is '\0' or '('. */ | |
3052 | case '\0': | |
3053 | if (*string2 == '\0') | |
3054 | return 0; | |
3055 | else | |
3056 | return -1; | |
3057 | case '(': | |
3058 | if (*string2 == '\0') | |
3059 | return 1; | |
3060 | else | |
3061 | return -1; | |
3062 | default: | |
3063 | if (*string2 == '(') | |
3064 | return 1; | |
3065 | else | |
3066 | return *string1 - *string2; | |
3067 | } | |
3068 | } | |
3069 | ||
2de7ced7 DJ |
3070 | /* A simple comparison function with opposite semantics to strcmp. */ |
3071 | ||
3072 | int | |
3073 | streq (const char *lhs, const char *rhs) | |
3074 | { | |
3075 | return !strcmp (lhs, rhs); | |
3076 | } | |
c906108c | 3077 | \f |
c5aa993b | 3078 | |
c906108c | 3079 | /* |
c5aa993b JM |
3080 | ** subset_compare() |
3081 | ** Answer whether string_to_compare is a full or partial match to | |
3082 | ** template_string. The partial match must be in sequence starting | |
3083 | ** at index 0. | |
3084 | */ | |
c906108c | 3085 | int |
fba45db2 | 3086 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
3087 | { |
3088 | int match; | |
e0627e85 | 3089 | |
8731e58e AC |
3090 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
3091 | && strlen (string_to_compare) <= strlen (template_string)) | |
3092 | match = | |
3093 | (strncmp | |
3094 | (template_string, string_to_compare, strlen (string_to_compare)) == 0); | |
7a292a7a SS |
3095 | else |
3096 | match = 0; | |
3097 | return match; | |
3098 | } | |
c906108c | 3099 | |
7a292a7a | 3100 | static void |
fba45db2 | 3101 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
3102 | { |
3103 | pagination_enabled = 1; | |
3104 | } | |
3105 | ||
7a292a7a | 3106 | static void |
fba45db2 | 3107 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
3108 | { |
3109 | pagination_enabled = 0; | |
3110 | } | |
75feb17d DJ |
3111 | |
3112 | static void | |
3113 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
3114 | struct cmd_list_element *c, const char *value) | |
3115 | { | |
3e43a32a MS |
3116 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), |
3117 | value); | |
75feb17d | 3118 | } |
c906108c | 3119 | \f |
c5aa993b | 3120 | |
c906108c | 3121 | void |
fba45db2 | 3122 | initialize_utils (void) |
c906108c | 3123 | { |
35096d9d AC |
3124 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
3125 | Set number of characters gdb thinks are in a line."), _("\ | |
3126 | Show number of characters gdb thinks are in a line."), NULL, | |
3127 | set_width_command, | |
920d2a44 | 3128 | show_chars_per_line, |
35096d9d AC |
3129 | &setlist, &showlist); |
3130 | ||
3131 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
3132 | Set number of lines gdb thinks are in a page."), _("\ | |
3133 | Show number of lines gdb thinks are in a page."), NULL, | |
3134 | set_height_command, | |
920d2a44 | 3135 | show_lines_per_page, |
35096d9d | 3136 | &setlist, &showlist); |
c5aa993b | 3137 | |
c906108c SS |
3138 | init_page_info (); |
3139 | ||
5bf193a2 AC |
3140 | add_setshow_boolean_cmd ("demangle", class_support, &demangle, _("\ |
3141 | Set demangling of encoded C++/ObjC names when displaying symbols."), _("\ | |
3142 | Show demangling of encoded C++/ObjC names when displaying symbols."), NULL, | |
3143 | NULL, | |
920d2a44 | 3144 | show_demangle, |
5bf193a2 AC |
3145 | &setprintlist, &showprintlist); |
3146 | ||
3147 | add_setshow_boolean_cmd ("pagination", class_support, | |
3148 | &pagination_enabled, _("\ | |
3149 | Set state of pagination."), _("\ | |
3150 | Show state of pagination."), NULL, | |
3151 | NULL, | |
920d2a44 | 3152 | show_pagination_enabled, |
5bf193a2 | 3153 | &setlist, &showlist); |
4261bedc | 3154 | |
c906108c SS |
3155 | if (xdb_commands) |
3156 | { | |
c5aa993b | 3157 | add_com ("am", class_support, pagination_on_command, |
1bedd215 | 3158 | _("Enable pagination")); |
c5aa993b | 3159 | add_com ("sm", class_support, pagination_off_command, |
1bedd215 | 3160 | _("Disable pagination")); |
c906108c SS |
3161 | } |
3162 | ||
5bf193a2 AC |
3163 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, |
3164 | &sevenbit_strings, _("\ | |
3165 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
3166 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
3167 | NULL, | |
920d2a44 | 3168 | show_sevenbit_strings, |
5bf193a2 AC |
3169 | &setprintlist, &showprintlist); |
3170 | ||
3171 | add_setshow_boolean_cmd ("asm-demangle", class_support, &asm_demangle, _("\ | |
3172 | Set demangling of C++/ObjC names in disassembly listings."), _("\ | |
3173 | Show demangling of C++/ObjC names in disassembly listings."), NULL, | |
3174 | NULL, | |
920d2a44 | 3175 | show_asm_demangle, |
5bf193a2 | 3176 | &setprintlist, &showprintlist); |
75feb17d DJ |
3177 | |
3178 | add_setshow_boolean_cmd ("timestamp", class_maintenance, | |
3179 | &debug_timestamp, _("\ | |
3180 | Set timestamping of debugging messages."), _("\ | |
3181 | Show timestamping of debugging messages."), _("\ | |
3182 | When set, debugging messages will be marked with seconds and microseconds."), | |
3183 | NULL, | |
3184 | show_debug_timestamp, | |
3185 | &setdebuglist, &showdebuglist); | |
c906108c SS |
3186 | } |
3187 | ||
581e13c1 | 3188 | /* Machine specific function to handle SIGWINCH signal. */ |
c906108c SS |
3189 | |
3190 | #ifdef SIGWINCH_HANDLER_BODY | |
c5aa993b | 3191 | SIGWINCH_HANDLER_BODY |
c906108c | 3192 | #endif |
581e13c1 MS |
3193 | /* Print routines to handle variable size regs, etc. */ |
3194 | /* Temporary storage using circular buffer. */ | |
c906108c | 3195 | #define NUMCELLS 16 |
0759e0bf | 3196 | #define CELLSIZE 50 |
c5aa993b | 3197 | static char * |
fba45db2 | 3198 | get_cell (void) |
c906108c SS |
3199 | { |
3200 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b | 3201 | static int cell = 0; |
e0627e85 | 3202 | |
c5aa993b JM |
3203 | if (++cell >= NUMCELLS) |
3204 | cell = 0; | |
c906108c SS |
3205 | return buf[cell]; |
3206 | } | |
3207 | ||
66bf4b3a | 3208 | const char * |
5af949e3 | 3209 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
3210 | { |
3211 | /* Truncate address to the size of a target address, avoiding shifts | |
3212 | larger or equal than the width of a CORE_ADDR. The local | |
3213 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
581e13c1 | 3214 | when it won't occur. */ |
66bf4b3a AC |
3215 | /* NOTE: This assumes that the significant address information is |
3216 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 3217 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
3218 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
3219 | ||
5af949e3 | 3220 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
3221 | |
3222 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
3223 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
3224 | return hex_string (addr); | |
3225 | } | |
3226 | ||
f1310107 TJB |
3227 | /* This function is described in "defs.h". */ |
3228 | ||
3229 | const char * | |
3230 | print_core_address (struct gdbarch *gdbarch, CORE_ADDR address) | |
3231 | { | |
3232 | int addr_bit = gdbarch_addr_bit (gdbarch); | |
3233 | ||
3234 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
3235 | address &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
3236 | ||
3237 | /* FIXME: cagney/2002-05-03: Need local_address_string() function | |
3238 | that returns the language localized string formatted to a width | |
3239 | based on gdbarch_addr_bit. */ | |
3240 | if (addr_bit <= 32) | |
3241 | return hex_string_custom (address, 8); | |
3242 | else | |
3243 | return hex_string_custom (address, 16); | |
3244 | } | |
3245 | ||
8cf46f62 MK |
3246 | static char * |
3247 | decimal2str (char *sign, ULONGEST addr, int width) | |
104c1213 | 3248 | { |
8cf46f62 | 3249 | /* Steal code from valprint.c:print_decimal(). Should this worry |
581e13c1 | 3250 | about the real size of addr as the above does? */ |
104c1213 | 3251 | unsigned long temp[3]; |
8cf46f62 | 3252 | char *str = get_cell (); |
104c1213 | 3253 | int i = 0; |
5d502164 | 3254 | |
104c1213 JM |
3255 | do |
3256 | { | |
3257 | temp[i] = addr % (1000 * 1000 * 1000); | |
3258 | addr /= (1000 * 1000 * 1000); | |
3259 | i++; | |
bb599908 | 3260 | width -= 9; |
104c1213 JM |
3261 | } |
3262 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 3263 | |
bb599908 PH |
3264 | width += 9; |
3265 | if (width < 0) | |
3266 | width = 0; | |
8cf46f62 | 3267 | |
104c1213 JM |
3268 | switch (i) |
3269 | { | |
3270 | case 1: | |
8cf46f62 | 3271 | xsnprintf (str, CELLSIZE, "%s%0*lu", sign, width, temp[0]); |
104c1213 JM |
3272 | break; |
3273 | case 2: | |
8cf46f62 MK |
3274 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu", sign, width, |
3275 | temp[1], temp[0]); | |
104c1213 JM |
3276 | break; |
3277 | case 3: | |
8cf46f62 MK |
3278 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu%09lu", sign, width, |
3279 | temp[2], temp[1], temp[0]); | |
bb599908 PH |
3280 | break; |
3281 | default: | |
3282 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3283 | _("failed internal consistency check")); |
bb599908 | 3284 | } |
8cf46f62 MK |
3285 | |
3286 | return str; | |
bb599908 PH |
3287 | } |
3288 | ||
8cf46f62 MK |
3289 | static char * |
3290 | octal2str (ULONGEST addr, int width) | |
bb599908 PH |
3291 | { |
3292 | unsigned long temp[3]; | |
8cf46f62 | 3293 | char *str = get_cell (); |
bb599908 | 3294 | int i = 0; |
5d502164 | 3295 | |
bb599908 PH |
3296 | do |
3297 | { | |
3298 | temp[i] = addr % (0100000 * 0100000); | |
3299 | addr /= (0100000 * 0100000); | |
3300 | i++; | |
3301 | width -= 10; | |
3302 | } | |
3303 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 3304 | |
bb599908 PH |
3305 | width += 10; |
3306 | if (width < 0) | |
3307 | width = 0; | |
8cf46f62 | 3308 | |
bb599908 PH |
3309 | switch (i) |
3310 | { | |
3311 | case 1: | |
3312 | if (temp[0] == 0) | |
8cf46f62 | 3313 | xsnprintf (str, CELLSIZE, "%*o", width, 0); |
bb599908 | 3314 | else |
8cf46f62 | 3315 | xsnprintf (str, CELLSIZE, "0%0*lo", width, temp[0]); |
bb599908 PH |
3316 | break; |
3317 | case 2: | |
8cf46f62 | 3318 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo", width, temp[1], temp[0]); |
bb599908 PH |
3319 | break; |
3320 | case 3: | |
8cf46f62 MK |
3321 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo%010lo", width, |
3322 | temp[2], temp[1], temp[0]); | |
104c1213 JM |
3323 | break; |
3324 | default: | |
8731e58e | 3325 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 3326 | _("failed internal consistency check")); |
104c1213 | 3327 | } |
8cf46f62 MK |
3328 | |
3329 | return str; | |
104c1213 JM |
3330 | } |
3331 | ||
3332 | char * | |
623d3eb1 | 3333 | pulongest (ULONGEST u) |
104c1213 | 3334 | { |
623d3eb1 | 3335 | return decimal2str ("", u, 0); |
104c1213 JM |
3336 | } |
3337 | ||
3338 | char * | |
623d3eb1 | 3339 | plongest (LONGEST l) |
104c1213 | 3340 | { |
623d3eb1 DE |
3341 | if (l < 0) |
3342 | return decimal2str ("-", -l, 0); | |
104c1213 | 3343 | else |
623d3eb1 | 3344 | return decimal2str ("", l, 0); |
104c1213 JM |
3345 | } |
3346 | ||
8cf46f62 | 3347 | /* Eliminate warning from compiler on 32-bit systems. */ |
5683e87a AC |
3348 | static int thirty_two = 32; |
3349 | ||
104c1213 | 3350 | char * |
5683e87a | 3351 | phex (ULONGEST l, int sizeof_l) |
104c1213 | 3352 | { |
45a1e866 | 3353 | char *str; |
8cf46f62 | 3354 | |
5683e87a | 3355 | switch (sizeof_l) |
104c1213 JM |
3356 | { |
3357 | case 8: | |
45a1e866 | 3358 | str = get_cell (); |
8cf46f62 MK |
3359 | xsnprintf (str, CELLSIZE, "%08lx%08lx", |
3360 | (unsigned long) (l >> thirty_two), | |
3361 | (unsigned long) (l & 0xffffffff)); | |
104c1213 JM |
3362 | break; |
3363 | case 4: | |
45a1e866 | 3364 | str = get_cell (); |
8cf46f62 | 3365 | xsnprintf (str, CELLSIZE, "%08lx", (unsigned long) l); |
104c1213 JM |
3366 | break; |
3367 | case 2: | |
45a1e866 | 3368 | str = get_cell (); |
8cf46f62 | 3369 | xsnprintf (str, CELLSIZE, "%04x", (unsigned short) (l & 0xffff)); |
104c1213 JM |
3370 | break; |
3371 | default: | |
45a1e866 | 3372 | str = phex (l, sizeof (l)); |
5683e87a | 3373 | break; |
104c1213 | 3374 | } |
8cf46f62 | 3375 | |
5683e87a | 3376 | return str; |
104c1213 JM |
3377 | } |
3378 | ||
c5aa993b | 3379 | char * |
5683e87a | 3380 | phex_nz (ULONGEST l, int sizeof_l) |
c906108c | 3381 | { |
faf833ca | 3382 | char *str; |
8cf46f62 | 3383 | |
5683e87a | 3384 | switch (sizeof_l) |
c906108c | 3385 | { |
c5aa993b JM |
3386 | case 8: |
3387 | { | |
5683e87a | 3388 | unsigned long high = (unsigned long) (l >> thirty_two); |
5d502164 | 3389 | |
faf833ca | 3390 | str = get_cell (); |
c5aa993b | 3391 | if (high == 0) |
8cf46f62 MK |
3392 | xsnprintf (str, CELLSIZE, "%lx", |
3393 | (unsigned long) (l & 0xffffffff)); | |
c5aa993b | 3394 | else |
8cf46f62 MK |
3395 | xsnprintf (str, CELLSIZE, "%lx%08lx", high, |
3396 | (unsigned long) (l & 0xffffffff)); | |
c906108c | 3397 | break; |
c5aa993b JM |
3398 | } |
3399 | case 4: | |
faf833ca | 3400 | str = get_cell (); |
8cf46f62 | 3401 | xsnprintf (str, CELLSIZE, "%lx", (unsigned long) l); |
c5aa993b JM |
3402 | break; |
3403 | case 2: | |
faf833ca | 3404 | str = get_cell (); |
8cf46f62 | 3405 | xsnprintf (str, CELLSIZE, "%x", (unsigned short) (l & 0xffff)); |
c5aa993b JM |
3406 | break; |
3407 | default: | |
faf833ca | 3408 | str = phex_nz (l, sizeof (l)); |
5683e87a | 3409 | break; |
c906108c | 3410 | } |
8cf46f62 | 3411 | |
5683e87a | 3412 | return str; |
c906108c | 3413 | } |
ac2e2ef7 | 3414 | |
0759e0bf AC |
3415 | /* Converts a LONGEST to a C-format hexadecimal literal and stores it |
3416 | in a static string. Returns a pointer to this string. */ | |
3417 | char * | |
3418 | hex_string (LONGEST num) | |
3419 | { | |
3420 | char *result = get_cell (); | |
e0627e85 | 3421 | |
8cf46f62 | 3422 | xsnprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num))); |
0759e0bf AC |
3423 | return result; |
3424 | } | |
3425 | ||
3426 | /* Converts a LONGEST number to a C-format hexadecimal literal and | |
3427 | stores it in a static string. Returns a pointer to this string | |
3428 | that is valid until the next call. The number is padded on the | |
3429 | left with 0s to at least WIDTH characters. */ | |
3430 | char * | |
3431 | hex_string_custom (LONGEST num, int width) | |
3432 | { | |
3433 | char *result = get_cell (); | |
3434 | char *result_end = result + CELLSIZE - 1; | |
3435 | const char *hex = phex_nz (num, sizeof (num)); | |
3436 | int hex_len = strlen (hex); | |
3437 | ||
3438 | if (hex_len > width) | |
3439 | width = hex_len; | |
3440 | if (width + 2 >= CELLSIZE) | |
3e43a32a MS |
3441 | internal_error (__FILE__, __LINE__, _("\ |
3442 | hex_string_custom: insufficient space to store result")); | |
0759e0bf AC |
3443 | |
3444 | strcpy (result_end - width - 2, "0x"); | |
3445 | memset (result_end - width, '0', width); | |
3446 | strcpy (result_end - hex_len, hex); | |
3447 | return result_end - width - 2; | |
3448 | } | |
ac2e2ef7 | 3449 | |
bb599908 PH |
3450 | /* Convert VAL to a numeral in the given radix. For |
3451 | * radix 10, IS_SIGNED may be true, indicating a signed quantity; | |
3452 | * otherwise VAL is interpreted as unsigned. If WIDTH is supplied, | |
3453 | * it is the minimum width (0-padded if needed). USE_C_FORMAT means | |
3454 | * to use C format in all cases. If it is false, then 'x' | |
581e13c1 | 3455 | * and 'o' formats do not include a prefix (0x or leading 0). */ |
bb599908 PH |
3456 | |
3457 | char * | |
3458 | int_string (LONGEST val, int radix, int is_signed, int width, | |
3459 | int use_c_format) | |
3460 | { | |
3461 | switch (radix) | |
3462 | { | |
3463 | case 16: | |
3464 | { | |
3465 | char *result; | |
5d502164 | 3466 | |
bb599908 PH |
3467 | if (width == 0) |
3468 | result = hex_string (val); | |
3469 | else | |
3470 | result = hex_string_custom (val, width); | |
3471 | if (! use_c_format) | |
3472 | result += 2; | |
3473 | return result; | |
3474 | } | |
3475 | case 10: | |
3476 | { | |
bb599908 | 3477 | if (is_signed && val < 0) |
8cf46f62 | 3478 | return decimal2str ("-", -val, width); |
bb599908 | 3479 | else |
8cf46f62 | 3480 | return decimal2str ("", val, width); |
bb599908 PH |
3481 | } |
3482 | case 8: | |
3483 | { | |
8cf46f62 | 3484 | char *result = octal2str (val, width); |
5d502164 | 3485 | |
bb599908 PH |
3486 | if (use_c_format || val == 0) |
3487 | return result; | |
3488 | else | |
3489 | return result + 1; | |
3490 | } | |
3491 | default: | |
3492 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3493 | _("failed internal consistency check")); |
bb599908 PH |
3494 | } |
3495 | } | |
3496 | ||
03dd37c3 AC |
3497 | /* Convert a CORE_ADDR into a string. */ |
3498 | const char * | |
3499 | core_addr_to_string (const CORE_ADDR addr) | |
49b563f9 KS |
3500 | { |
3501 | char *str = get_cell (); | |
e0627e85 | 3502 | |
49b563f9 KS |
3503 | strcpy (str, "0x"); |
3504 | strcat (str, phex (addr, sizeof (addr))); | |
3505 | return str; | |
3506 | } | |
3507 | ||
3508 | const char * | |
3509 | core_addr_to_string_nz (const CORE_ADDR addr) | |
03dd37c3 AC |
3510 | { |
3511 | char *str = get_cell (); | |
e0627e85 | 3512 | |
03dd37c3 AC |
3513 | strcpy (str, "0x"); |
3514 | strcat (str, phex_nz (addr, sizeof (addr))); | |
3515 | return str; | |
3516 | } | |
3517 | ||
3518 | /* Convert a string back into a CORE_ADDR. */ | |
3519 | CORE_ADDR | |
3520 | string_to_core_addr (const char *my_string) | |
3521 | { | |
3522 | CORE_ADDR addr = 0; | |
9544c605 | 3523 | |
03dd37c3 AC |
3524 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
3525 | { | |
ced572fe | 3526 | /* Assume that it is in hex. */ |
03dd37c3 | 3527 | int i; |
5d502164 | 3528 | |
03dd37c3 AC |
3529 | for (i = 2; my_string[i] != '\0'; i++) |
3530 | { | |
3531 | if (isdigit (my_string[i])) | |
3532 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 3533 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
3534 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
3535 | else | |
63f06803 | 3536 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
3537 | } |
3538 | } | |
3539 | else | |
3540 | { | |
3541 | /* Assume that it is in decimal. */ | |
3542 | int i; | |
5d502164 | 3543 | |
03dd37c3 AC |
3544 | for (i = 0; my_string[i] != '\0'; i++) |
3545 | { | |
3546 | if (isdigit (my_string[i])) | |
3547 | addr = (my_string[i] - '0') + (addr * 10); | |
3548 | else | |
63f06803 | 3549 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
3550 | } |
3551 | } | |
9544c605 | 3552 | |
03dd37c3 AC |
3553 | return addr; |
3554 | } | |
58d370e0 | 3555 | |
17ea7499 CES |
3556 | const char * |
3557 | host_address_to_string (const void *addr) | |
3558 | { | |
3559 | char *str = get_cell (); | |
ea8992ce | 3560 | |
773698b5 | 3561 | xsnprintf (str, CELLSIZE, "0x%s", phex_nz ((uintptr_t) addr, sizeof (addr))); |
17ea7499 CES |
3562 | return str; |
3563 | } | |
3564 | ||
58d370e0 TT |
3565 | char * |
3566 | gdb_realpath (const char *filename) | |
3567 | { | |
70d35819 AC |
3568 | /* Method 1: The system has a compile time upper bound on a filename |
3569 | path. Use that and realpath() to canonicalize the name. This is | |
3570 | the most common case. Note that, if there isn't a compile time | |
3571 | upper bound, you want to avoid realpath() at all costs. */ | |
a4db0f07 | 3572 | #if defined(HAVE_REALPATH) |
70d35819 | 3573 | { |
a4db0f07 | 3574 | # if defined (PATH_MAX) |
70d35819 | 3575 | char buf[PATH_MAX]; |
a4db0f07 RH |
3576 | # define USE_REALPATH |
3577 | # elif defined (MAXPATHLEN) | |
70d35819 | 3578 | char buf[MAXPATHLEN]; |
a4db0f07 RH |
3579 | # define USE_REALPATH |
3580 | # endif | |
70d35819 | 3581 | # if defined (USE_REALPATH) |
82c0260e | 3582 | const char *rp = realpath (filename, buf); |
5d502164 | 3583 | |
70d35819 AC |
3584 | if (rp == NULL) |
3585 | rp = filename; | |
3586 | return xstrdup (rp); | |
70d35819 | 3587 | # endif |
6f88d630 | 3588 | } |
a4db0f07 RH |
3589 | #endif /* HAVE_REALPATH */ |
3590 | ||
70d35819 AC |
3591 | /* Method 2: The host system (i.e., GNU) has the function |
3592 | canonicalize_file_name() which malloc's a chunk of memory and | |
3593 | returns that, use that. */ | |
3594 | #if defined(HAVE_CANONICALIZE_FILE_NAME) | |
3595 | { | |
3596 | char *rp = canonicalize_file_name (filename); | |
5d502164 | 3597 | |
70d35819 AC |
3598 | if (rp == NULL) |
3599 | return xstrdup (filename); | |
3600 | else | |
3601 | return rp; | |
3602 | } | |
58d370e0 | 3603 | #endif |
70d35819 | 3604 | |
6411e720 AC |
3605 | /* FIXME: cagney/2002-11-13: |
3606 | ||
3607 | Method 2a: Use realpath() with a NULL buffer. Some systems, due | |
3608 | to the problems described in in method 3, have modified their | |
3609 | realpath() implementation so that it will allocate a buffer when | |
3610 | NULL is passed in. Before this can be used, though, some sort of | |
3611 | configure time test would need to be added. Otherwize the code | |
3612 | will likely core dump. */ | |
3613 | ||
70d35819 AC |
3614 | /* Method 3: Now we're getting desperate! The system doesn't have a |
3615 | compile time buffer size and no alternative function. Query the | |
3616 | OS, using pathconf(), for the buffer limit. Care is needed | |
3617 | though, some systems do not limit PATH_MAX (return -1 for | |
3618 | pathconf()) making it impossible to pass a correctly sized buffer | |
3619 | to realpath() (it could always overflow). On those systems, we | |
3620 | skip this. */ | |
3621 | #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA) | |
3622 | { | |
3623 | /* Find out the max path size. */ | |
3624 | long path_max = pathconf ("/", _PC_PATH_MAX); | |
5d502164 | 3625 | |
70d35819 AC |
3626 | if (path_max > 0) |
3627 | { | |
3628 | /* PATH_MAX is bounded. */ | |
3629 | char *buf = alloca (path_max); | |
3630 | char *rp = realpath (filename, buf); | |
5d502164 | 3631 | |
70d35819 AC |
3632 | return xstrdup (rp ? rp : filename); |
3633 | } | |
3634 | } | |
3635 | #endif | |
3636 | ||
3637 | /* This system is a lost cause, just dup the buffer. */ | |
3638 | return xstrdup (filename); | |
58d370e0 | 3639 | } |
303c8ebd JB |
3640 | |
3641 | /* Return a copy of FILENAME, with its directory prefix canonicalized | |
3642 | by gdb_realpath. */ | |
3643 | ||
3644 | char * | |
3645 | xfullpath (const char *filename) | |
3646 | { | |
3647 | const char *base_name = lbasename (filename); | |
3648 | char *dir_name; | |
3649 | char *real_path; | |
3650 | char *result; | |
3651 | ||
3652 | /* Extract the basename of filename, and return immediately | |
581e13c1 | 3653 | a copy of filename if it does not contain any directory prefix. */ |
303c8ebd JB |
3654 | if (base_name == filename) |
3655 | return xstrdup (filename); | |
3656 | ||
3657 | dir_name = alloca ((size_t) (base_name - filename + 2)); | |
3658 | /* Allocate enough space to store the dir_name + plus one extra | |
3659 | character sometimes needed under Windows (see below), and | |
581e13c1 | 3660 | then the closing \000 character. */ |
303c8ebd JB |
3661 | strncpy (dir_name, filename, base_name - filename); |
3662 | dir_name[base_name - filename] = '\000'; | |
3663 | ||
3664 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3665 | /* We need to be careful when filename is of the form 'd:foo', which | |
3666 | is equivalent of d:./foo, which is totally different from d:/foo. */ | |
8731e58e | 3667 | if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':') |
303c8ebd JB |
3668 | { |
3669 | dir_name[2] = '.'; | |
3670 | dir_name[3] = '\000'; | |
3671 | } | |
3672 | #endif | |
3673 | ||
3674 | /* Canonicalize the directory prefix, and build the resulting | |
581e13c1 | 3675 | filename. If the dirname realpath already contains an ending |
303c8ebd JB |
3676 | directory separator, avoid doubling it. */ |
3677 | real_path = gdb_realpath (dir_name); | |
3678 | if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1])) | |
c4f7c687 | 3679 | result = concat (real_path, base_name, (char *) NULL); |
303c8ebd | 3680 | else |
c4f7c687 | 3681 | result = concat (real_path, SLASH_STRING, base_name, (char *) NULL); |
303c8ebd JB |
3682 | |
3683 | xfree (real_path); | |
3684 | return result; | |
3685 | } | |
5b5d99cf JB |
3686 | |
3687 | ||
3688 | /* This is the 32-bit CRC function used by the GNU separate debug | |
3689 | facility. An executable may contain a section named | |
3690 | .gnu_debuglink, which holds the name of a separate executable file | |
3691 | containing its debug info, and a checksum of that file's contents, | |
3692 | computed using this function. */ | |
3693 | unsigned long | |
3694 | gnu_debuglink_crc32 (unsigned long crc, unsigned char *buf, size_t len) | |
3695 | { | |
6e0a4fbc | 3696 | static const unsigned int crc32_table[256] = { |
8731e58e AC |
3697 | 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, |
3698 | 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, | |
3699 | 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, | |
3700 | 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, | |
3701 | 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, | |
3702 | 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, | |
3703 | 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, | |
3704 | 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, | |
3705 | 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, | |
3706 | 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, | |
3707 | 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, | |
3708 | 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, | |
3709 | 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, | |
3710 | 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, | |
3711 | 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, | |
3712 | 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, | |
3713 | 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, | |
3714 | 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, | |
3715 | 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, | |
3716 | 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, | |
3717 | 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, | |
3718 | 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, | |
3719 | 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, | |
3720 | 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, | |
3721 | 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, | |
3722 | 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, | |
3723 | 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, | |
3724 | 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, | |
3725 | 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, | |
3726 | 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, | |
3727 | 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, | |
3728 | 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, | |
3729 | 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, | |
3730 | 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, | |
3731 | 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, | |
3732 | 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, | |
3733 | 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, | |
3734 | 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, | |
3735 | 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, | |
3736 | 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, | |
3737 | 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, | |
3738 | 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, | |
3739 | 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, | |
3740 | 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, | |
3741 | 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, | |
3742 | 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, | |
3743 | 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, | |
3744 | 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, | |
3745 | 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, | |
3746 | 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, | |
3747 | 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, | |
3748 | 0x2d02ef8d | |
3749 | }; | |
5b5d99cf JB |
3750 | unsigned char *end; |
3751 | ||
3752 | crc = ~crc & 0xffffffff; | |
3753 | for (end = buf + len; buf < end; ++buf) | |
3754 | crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8); | |
82ae4854 | 3755 | return ~crc & 0xffffffff; |
5b5d99cf | 3756 | } |
5b03f266 AC |
3757 | |
3758 | ULONGEST | |
3759 | align_up (ULONGEST v, int n) | |
3760 | { | |
3761 | /* Check that N is really a power of two. */ | |
3762 | gdb_assert (n && (n & (n-1)) == 0); | |
3763 | return (v + n - 1) & -n; | |
3764 | } | |
3765 | ||
3766 | ULONGEST | |
3767 | align_down (ULONGEST v, int n) | |
3768 | { | |
3769 | /* Check that N is really a power of two. */ | |
3770 | gdb_assert (n && (n & (n-1)) == 0); | |
3771 | return (v & -n); | |
3772 | } | |
ae5a43e0 DJ |
3773 | |
3774 | /* Allocation function for the libiberty hash table which uses an | |
3775 | obstack. The obstack is passed as DATA. */ | |
3776 | ||
3777 | void * | |
3778 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
3779 | { | |
3780 | unsigned int total = size * count; | |
3781 | void *ptr = obstack_alloc ((struct obstack *) data, total); | |
e0627e85 | 3782 | |
ae5a43e0 DJ |
3783 | memset (ptr, 0, total); |
3784 | return ptr; | |
3785 | } | |
3786 | ||
3787 | /* Trivial deallocation function for the libiberty splay tree and hash | |
3788 | table - don't deallocate anything. Rely on later deletion of the | |
3789 | obstack. DATA will be the obstack, although it is not needed | |
3790 | here. */ | |
3791 | ||
3792 | void | |
3793 | dummy_obstack_deallocate (void *object, void *data) | |
3794 | { | |
3795 | return; | |
3796 | } | |
253c8abb DJ |
3797 | |
3798 | /* The bit offset of the highest byte in a ULONGEST, for overflow | |
3799 | checking. */ | |
3800 | ||
3801 | #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT) | |
3802 | ||
3803 | /* True (non-zero) iff DIGIT is a valid digit in radix BASE, | |
3804 | where 2 <= BASE <= 36. */ | |
3805 | ||
3806 | static int | |
3807 | is_digit_in_base (unsigned char digit, int base) | |
3808 | { | |
3809 | if (!isalnum (digit)) | |
3810 | return 0; | |
3811 | if (base <= 10) | |
3812 | return (isdigit (digit) && digit < base + '0'); | |
3813 | else | |
3814 | return (isdigit (digit) || tolower (digit) < base - 10 + 'a'); | |
3815 | } | |
3816 | ||
3817 | static int | |
3818 | digit_to_int (unsigned char c) | |
3819 | { | |
3820 | if (isdigit (c)) | |
3821 | return c - '0'; | |
3822 | else | |
3823 | return tolower (c) - 'a' + 10; | |
3824 | } | |
3825 | ||
3826 | /* As for strtoul, but for ULONGEST results. */ | |
3827 | ||
3828 | ULONGEST | |
3829 | strtoulst (const char *num, const char **trailer, int base) | |
3830 | { | |
3831 | unsigned int high_part; | |
3832 | ULONGEST result; | |
3833 | int minus = 0; | |
3834 | int i = 0; | |
3835 | ||
3836 | /* Skip leading whitespace. */ | |
3837 | while (isspace (num[i])) | |
3838 | i++; | |
3839 | ||
3840 | /* Handle prefixes. */ | |
3841 | if (num[i] == '+') | |
3842 | i++; | |
3843 | else if (num[i] == '-') | |
3844 | { | |
3845 | minus = 1; | |
3846 | i++; | |
3847 | } | |
3848 | ||
3849 | if (base == 0 || base == 16) | |
3850 | { | |
3851 | if (num[i] == '0' && (num[i + 1] == 'x' || num[i + 1] == 'X')) | |
3852 | { | |
3853 | i += 2; | |
3854 | if (base == 0) | |
3855 | base = 16; | |
3856 | } | |
3857 | } | |
3858 | ||
3859 | if (base == 0 && num[i] == '0') | |
3860 | base = 8; | |
3861 | ||
3862 | if (base == 0) | |
3863 | base = 10; | |
3864 | ||
3865 | if (base < 2 || base > 36) | |
3866 | { | |
3867 | errno = EINVAL; | |
3868 | return 0; | |
3869 | } | |
3870 | ||
3871 | result = high_part = 0; | |
3872 | for (; is_digit_in_base (num[i], base); i += 1) | |
3873 | { | |
3874 | result = result * base + digit_to_int (num[i]); | |
3875 | high_part = high_part * base + (unsigned int) (result >> HIGH_BYTE_POSN); | |
3876 | result &= ((ULONGEST) 1 << HIGH_BYTE_POSN) - 1; | |
3877 | if (high_part > 0xff) | |
3878 | { | |
3879 | errno = ERANGE; | |
3880 | result = ~ (ULONGEST) 0; | |
3881 | high_part = 0; | |
3882 | minus = 0; | |
3883 | break; | |
3884 | } | |
3885 | } | |
3886 | ||
3887 | if (trailer != NULL) | |
3888 | *trailer = &num[i]; | |
3889 | ||
3890 | result = result + ((ULONGEST) high_part << HIGH_BYTE_POSN); | |
3891 | if (minus) | |
3892 | return -result; | |
3893 | else | |
3894 | return result; | |
3895 | } | |
e1024ff1 DJ |
3896 | |
3897 | /* Simple, portable version of dirname that does not modify its | |
3898 | argument. */ | |
3899 | ||
3900 | char * | |
3901 | ldirname (const char *filename) | |
3902 | { | |
3903 | const char *base = lbasename (filename); | |
3904 | char *dirname; | |
3905 | ||
3906 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
3907 | --base; | |
3908 | ||
3909 | if (base == filename) | |
3910 | return NULL; | |
3911 | ||
3912 | dirname = xmalloc (base - filename + 2); | |
3913 | memcpy (dirname, filename, base - filename); | |
3914 | ||
3915 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
3916 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
3917 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
3918 | && !IS_DIR_SEPARATOR (filename[0])) | |
3919 | dirname[base++ - filename] = '.'; | |
3920 | ||
3921 | dirname[base - filename] = '\0'; | |
3922 | return dirname; | |
3923 | } | |
d1a41061 PP |
3924 | |
3925 | /* Call libiberty's buildargv, and return the result. | |
3926 | If buildargv fails due to out-of-memory, call nomem. | |
3927 | Therefore, the returned value is guaranteed to be non-NULL, | |
3928 | unless the parameter itself is NULL. */ | |
3929 | ||
3930 | char ** | |
3931 | gdb_buildargv (const char *s) | |
3932 | { | |
3933 | char **argv = buildargv (s); | |
e0627e85 | 3934 | |
d1a41061 PP |
3935 | if (s != NULL && argv == NULL) |
3936 | nomem (0); | |
3937 | return argv; | |
3938 | } | |
3c16cced | 3939 | |
dc146f7c VP |
3940 | int |
3941 | compare_positive_ints (const void *ap, const void *bp) | |
3942 | { | |
3943 | /* Because we know we're comparing two ints which are positive, | |
3944 | there's no danger of overflow here. */ | |
3945 | return * (int *) ap - * (int *) bp; | |
3946 | } | |
3947 | ||
d18b8b7a | 3948 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3e43a32a MS |
3949 | #define AMBIGUOUS_MESS2 \ |
3950 | ".\nUse \"set gnutarget format-name\" to specify the format." | |
d18b8b7a HZ |
3951 | |
3952 | const char * | |
3953 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) | |
3954 | { | |
3955 | char *ret, *retp; | |
3956 | int ret_len; | |
3957 | char **p; | |
3958 | ||
3959 | /* Check if errmsg just need simple return. */ | |
3960 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
3961 | return bfd_errmsg (error_tag); | |
3962 | ||
3963 | ret_len = strlen (bfd_errmsg (error_tag)) + strlen (AMBIGUOUS_MESS1) | |
3964 | + strlen (AMBIGUOUS_MESS2); | |
3965 | for (p = matching; *p; p++) | |
3966 | ret_len += strlen (*p) + 1; | |
3967 | ret = xmalloc (ret_len + 1); | |
3968 | retp = ret; | |
3969 | make_cleanup (xfree, ret); | |
3970 | ||
3971 | strcpy (retp, bfd_errmsg (error_tag)); | |
3972 | retp += strlen (retp); | |
3973 | ||
3974 | strcpy (retp, AMBIGUOUS_MESS1); | |
3975 | retp += strlen (retp); | |
3976 | ||
3977 | for (p = matching; *p; p++) | |
3978 | { | |
3979 | sprintf (retp, " %s", *p); | |
3980 | retp += strlen (retp); | |
3981 | } | |
3982 | xfree (matching); | |
3983 | ||
3984 | strcpy (retp, AMBIGUOUS_MESS2); | |
3985 | ||
3986 | return ret; | |
3987 | } | |
3988 | ||
74164c56 JK |
3989 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
3990 | ||
3991 | int | |
3992 | parse_pid_to_attach (char *args) | |
3993 | { | |
3994 | unsigned long pid; | |
3995 | char *dummy; | |
3996 | ||
3997 | if (!args) | |
3998 | error_no_arg (_("process-id to attach")); | |
3999 | ||
4000 | dummy = args; | |
4001 | pid = strtoul (args, &dummy, 0); | |
4002 | /* Some targets don't set errno on errors, grrr! */ | |
4003 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
4004 | error (_("Illegal process-id: %s."), args); | |
4005 | ||
4006 | return pid; | |
4007 | } | |
4008 | ||
2c0b251b PA |
4009 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
4010 | extern initialize_file_ftype _initialize_utils; | |
4011 | ||
3c16cced PA |
4012 | void |
4013 | _initialize_utils (void) | |
4014 | { | |
4015 | add_internal_problem_command (&internal_error_problem); | |
4016 | add_internal_problem_command (&internal_warning_problem); | |
4017 | } |