Commit | Line | Data |
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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, |
4c38e0a4 | 5 | 2009, 2010 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 | ||
c906108c SS |
41 | /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */ |
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" |
8626589c | 76 | |
a3828db0 | 77 | #if !HAVE_DECL_MALLOC |
5ac79d78 | 78 | extern PTR malloc (); /* ARI: PTR */ |
3c37485b | 79 | #endif |
a3828db0 | 80 | #if !HAVE_DECL_REALLOC |
5ac79d78 | 81 | extern PTR realloc (); /* ARI: PTR */ |
0e52036f | 82 | #endif |
a3828db0 | 83 | #if !HAVE_DECL_FREE |
81b8eb80 AC |
84 | extern void free (); |
85 | #endif | |
81b8eb80 | 86 | |
c906108c SS |
87 | /* readline defines this. */ |
88 | #undef savestring | |
89 | ||
9a4105ab | 90 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
91 | |
92 | /* Prototypes for local functions */ | |
93 | ||
d9fcf2fb | 94 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
a0b31db1 | 95 | va_list, int) ATTRIBUTE_PRINTF (2, 0); |
c906108c | 96 | |
d9fcf2fb | 97 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 98 | |
e42c9534 AC |
99 | static void do_my_cleanups (struct cleanup **, struct cleanup *); |
100 | ||
a14ed312 | 101 | static void prompt_for_continue (void); |
c906108c | 102 | |
eb0d3137 | 103 | static void set_screen_size (void); |
a14ed312 | 104 | static void set_width (void); |
c906108c | 105 | |
75feb17d DJ |
106 | /* A flag indicating whether to timestamp debugging messages. */ |
107 | ||
108 | static int debug_timestamp = 0; | |
109 | ||
c906108c SS |
110 | /* Chain of cleanup actions established with make_cleanup, |
111 | to be executed if an error happens. */ | |
112 | ||
c5aa993b JM |
113 | static struct cleanup *cleanup_chain; /* cleaned up after a failed command */ |
114 | static struct cleanup *final_cleanup_chain; /* cleaned up when gdb exits */ | |
43ff13b4 | 115 | |
c906108c SS |
116 | /* Nonzero if we have job control. */ |
117 | ||
118 | int job_control; | |
119 | ||
120 | /* Nonzero means a quit has been requested. */ | |
121 | ||
122 | int quit_flag; | |
123 | ||
124 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
125 | than waiting until QUIT is executed. Be careful in setting this; | |
126 | code which executes with immediate_quit set has to be very careful | |
127 | about being able to deal with being interrupted at any time. It is | |
128 | almost always better to use QUIT; the only exception I can think of | |
129 | is being able to quit out of a system call (using EINTR loses if | |
130 | the SIGINT happens between the previous QUIT and the system call). | |
131 | To immediately quit in the case in which a SIGINT happens between | |
132 | the previous QUIT and setting immediate_quit (desirable anytime we | |
133 | expect to block), call QUIT after setting immediate_quit. */ | |
134 | ||
135 | int immediate_quit; | |
136 | ||
4a351cef AF |
137 | /* Nonzero means that encoded C++/ObjC names should be printed out in their |
138 | C++/ObjC form rather than raw. */ | |
c906108c SS |
139 | |
140 | int demangle = 1; | |
920d2a44 AC |
141 | static void |
142 | show_demangle (struct ui_file *file, int from_tty, | |
143 | struct cmd_list_element *c, const char *value) | |
144 | { | |
145 | fprintf_filtered (file, _("\ | |
146 | Demangling of encoded C++/ObjC names when displaying symbols is %s.\n"), | |
147 | value); | |
148 | } | |
c906108c | 149 | |
4a351cef AF |
150 | /* Nonzero means that encoded C++/ObjC names should be printed out in their |
151 | C++/ObjC form even in assembler language displays. If this is set, but | |
c906108c SS |
152 | DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */ |
153 | ||
154 | int asm_demangle = 0; | |
920d2a44 AC |
155 | static void |
156 | show_asm_demangle (struct ui_file *file, int from_tty, | |
157 | struct cmd_list_element *c, const char *value) | |
158 | { | |
159 | fprintf_filtered (file, _("\ | |
160 | Demangling of C++/ObjC names in disassembly listings is %s.\n"), | |
161 | value); | |
162 | } | |
c906108c SS |
163 | |
164 | /* Nonzero means that strings with character values >0x7F should be printed | |
165 | as octal escapes. Zero means just print the value (e.g. it's an | |
166 | international character, and the terminal or window can cope.) */ | |
167 | ||
168 | int sevenbit_strings = 0; | |
920d2a44 AC |
169 | static void |
170 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
171 | struct cmd_list_element *c, const char *value) | |
172 | { | |
173 | fprintf_filtered (file, _("\ | |
174 | Printing of 8-bit characters in strings as \\nnn is %s.\n"), | |
175 | value); | |
176 | } | |
c906108c SS |
177 | |
178 | /* String to be printed before error messages, if any. */ | |
179 | ||
180 | char *error_pre_print; | |
181 | ||
182 | /* String to be printed before quit messages, if any. */ | |
183 | ||
184 | char *quit_pre_print; | |
185 | ||
186 | /* String to be printed before warning messages, if any. */ | |
187 | ||
188 | char *warning_pre_print = "\nwarning: "; | |
189 | ||
190 | int pagination_enabled = 1; | |
920d2a44 AC |
191 | static void |
192 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
193 | struct cmd_list_element *c, const char *value) | |
194 | { | |
195 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
196 | } | |
197 | ||
c906108c | 198 | \f |
c5aa993b | 199 | |
c906108c SS |
200 | /* Add a new cleanup to the cleanup_chain, |
201 | and return the previous chain pointer | |
202 | to be passed later to do_cleanups or discard_cleanups. | |
203 | Args are FUNCTION to clean up with, and ARG to pass to it. */ | |
204 | ||
205 | struct cleanup * | |
e4005526 | 206 | make_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 207 | { |
c5aa993b | 208 | return make_my_cleanup (&cleanup_chain, function, arg); |
c906108c SS |
209 | } |
210 | ||
4f8d22e3 PA |
211 | struct cleanup * |
212 | make_cleanup_dtor (make_cleanup_ftype *function, void *arg, | |
213 | void (*dtor) (void *)) | |
214 | { | |
215 | return make_my_cleanup2 (&cleanup_chain, | |
216 | function, arg, dtor); | |
217 | } | |
218 | ||
c906108c | 219 | struct cleanup * |
e4005526 | 220 | make_final_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 221 | { |
c5aa993b | 222 | return make_my_cleanup (&final_cleanup_chain, function, arg); |
c906108c | 223 | } |
7a292a7a | 224 | |
7a292a7a | 225 | static void |
fba45db2 | 226 | do_freeargv (void *arg) |
7a292a7a | 227 | { |
c5aa993b | 228 | freeargv ((char **) arg); |
7a292a7a SS |
229 | } |
230 | ||
231 | struct cleanup * | |
fba45db2 | 232 | make_cleanup_freeargv (char **arg) |
7a292a7a SS |
233 | { |
234 | return make_my_cleanup (&cleanup_chain, do_freeargv, arg); | |
235 | } | |
236 | ||
5c65bbb6 AC |
237 | static void |
238 | do_bfd_close_cleanup (void *arg) | |
239 | { | |
240 | bfd_close (arg); | |
241 | } | |
242 | ||
243 | struct cleanup * | |
244 | make_cleanup_bfd_close (bfd *abfd) | |
245 | { | |
246 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
247 | } | |
248 | ||
f5ff8c83 AC |
249 | static void |
250 | do_close_cleanup (void *arg) | |
251 | { | |
f042532c | 252 | int *fd = arg; |
e0627e85 | 253 | |
f042532c | 254 | close (*fd); |
f5ff8c83 AC |
255 | } |
256 | ||
257 | struct cleanup * | |
258 | make_cleanup_close (int fd) | |
259 | { | |
f042532c | 260 | int *saved_fd = xmalloc (sizeof (fd)); |
e0627e85 | 261 | |
f042532c | 262 | *saved_fd = fd; |
a05016c0 | 263 | return make_cleanup_dtor (do_close_cleanup, saved_fd, xfree); |
f5ff8c83 AC |
264 | } |
265 | ||
7c8a8b04 TT |
266 | /* Helper function which does the work for make_cleanup_fclose. */ |
267 | ||
268 | static void | |
269 | do_fclose_cleanup (void *arg) | |
270 | { | |
c02866a0 | 271 | FILE *file = arg; |
e0627e85 | 272 | |
c02866a0 | 273 | fclose (file); |
7c8a8b04 TT |
274 | } |
275 | ||
276 | /* Return a new cleanup that closes FILE. */ | |
277 | ||
278 | struct cleanup * | |
279 | make_cleanup_fclose (FILE *file) | |
280 | { | |
281 | return make_cleanup (do_fclose_cleanup, file); | |
282 | } | |
283 | ||
16ad9370 TT |
284 | /* Helper function which does the work for make_cleanup_obstack_free. */ |
285 | ||
286 | static void | |
287 | do_obstack_free (void *arg) | |
288 | { | |
289 | struct obstack *ob = arg; | |
e0627e85 | 290 | |
16ad9370 TT |
291 | obstack_free (ob, NULL); |
292 | } | |
293 | ||
294 | /* Return a new cleanup that frees OBSTACK. */ | |
295 | ||
296 | struct cleanup * | |
297 | make_cleanup_obstack_free (struct obstack *obstack) | |
298 | { | |
299 | return make_cleanup (do_obstack_free, obstack); | |
300 | } | |
301 | ||
11cf8741 | 302 | static void |
d9fcf2fb | 303 | do_ui_file_delete (void *arg) |
11cf8741 | 304 | { |
d9fcf2fb | 305 | ui_file_delete (arg); |
11cf8741 JM |
306 | } |
307 | ||
308 | struct cleanup * | |
d9fcf2fb | 309 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 310 | { |
d9fcf2fb | 311 | return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg); |
11cf8741 JM |
312 | } |
313 | ||
7b90c3f9 JB |
314 | static void |
315 | do_free_section_addr_info (void *arg) | |
316 | { | |
317 | free_section_addr_info (arg); | |
318 | } | |
319 | ||
320 | struct cleanup * | |
321 | make_cleanup_free_section_addr_info (struct section_addr_info *addrs) | |
322 | { | |
323 | return make_my_cleanup (&cleanup_chain, do_free_section_addr_info, addrs); | |
324 | } | |
325 | ||
0b080f59 VP |
326 | struct restore_integer_closure |
327 | { | |
328 | int *variable; | |
329 | int value; | |
330 | }; | |
331 | ||
332 | static void | |
333 | restore_integer (void *p) | |
334 | { | |
335 | struct restore_integer_closure *closure = p; | |
e0627e85 | 336 | |
0b080f59 VP |
337 | *(closure->variable) = closure->value; |
338 | } | |
7b90c3f9 | 339 | |
0b080f59 VP |
340 | /* Remember the current value of *VARIABLE and make it restored when the cleanup |
341 | is run. */ | |
c906108c | 342 | struct cleanup * |
0b080f59 VP |
343 | make_cleanup_restore_integer (int *variable) |
344 | { | |
345 | struct restore_integer_closure *c = | |
346 | xmalloc (sizeof (struct restore_integer_closure)); | |
e0627e85 | 347 | |
0b080f59 VP |
348 | c->variable = variable; |
349 | c->value = *variable; | |
350 | ||
351 | return make_my_cleanup2 (&cleanup_chain, restore_integer, (void *)c, | |
352 | xfree); | |
353 | } | |
354 | ||
355 | struct cleanup * | |
356 | make_my_cleanup2 (struct cleanup **pmy_chain, make_cleanup_ftype *function, | |
357 | void *arg, void (*free_arg) (void *)) | |
c906108c | 358 | { |
52f0bd74 | 359 | struct cleanup *new |
8731e58e | 360 | = (struct cleanup *) xmalloc (sizeof (struct cleanup)); |
52f0bd74 | 361 | struct cleanup *old_chain = *pmy_chain; |
c906108c SS |
362 | |
363 | new->next = *pmy_chain; | |
364 | new->function = function; | |
0b080f59 | 365 | new->free_arg = free_arg; |
c906108c SS |
366 | new->arg = arg; |
367 | *pmy_chain = new; | |
368 | ||
369 | return old_chain; | |
370 | } | |
371 | ||
0b080f59 VP |
372 | struct cleanup * |
373 | make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function, | |
374 | void *arg) | |
375 | { | |
376 | return make_my_cleanup2 (pmy_chain, function, arg, NULL); | |
377 | } | |
378 | ||
c906108c SS |
379 | /* Discard cleanups and do the actions they describe |
380 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
381 | ||
382 | void | |
aa1ee363 | 383 | do_cleanups (struct cleanup *old_chain) |
c906108c | 384 | { |
c5aa993b | 385 | do_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
386 | } |
387 | ||
388 | void | |
aa1ee363 | 389 | do_final_cleanups (struct cleanup *old_chain) |
c906108c | 390 | { |
c5aa993b | 391 | do_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
392 | } |
393 | ||
e42c9534 | 394 | static void |
aa1ee363 AC |
395 | do_my_cleanups (struct cleanup **pmy_chain, |
396 | struct cleanup *old_chain) | |
c906108c | 397 | { |
52f0bd74 | 398 | struct cleanup *ptr; |
e0627e85 | 399 | |
c906108c SS |
400 | while ((ptr = *pmy_chain) != old_chain) |
401 | { | |
402 | *pmy_chain = ptr->next; /* Do this first incase recursion */ | |
403 | (*ptr->function) (ptr->arg); | |
0b080f59 VP |
404 | if (ptr->free_arg) |
405 | (*ptr->free_arg) (ptr->arg); | |
b8c9b27d | 406 | xfree (ptr); |
c906108c SS |
407 | } |
408 | } | |
409 | ||
410 | /* Discard cleanups, not doing the actions they describe, | |
411 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
412 | ||
413 | void | |
aa1ee363 | 414 | discard_cleanups (struct cleanup *old_chain) |
c906108c | 415 | { |
c5aa993b | 416 | discard_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
417 | } |
418 | ||
419 | void | |
aa1ee363 | 420 | discard_final_cleanups (struct cleanup *old_chain) |
c906108c | 421 | { |
c5aa993b | 422 | discard_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
423 | } |
424 | ||
425 | void | |
aa1ee363 AC |
426 | discard_my_cleanups (struct cleanup **pmy_chain, |
427 | struct cleanup *old_chain) | |
c906108c | 428 | { |
52f0bd74 | 429 | struct cleanup *ptr; |
e0627e85 | 430 | |
c906108c SS |
431 | while ((ptr = *pmy_chain) != old_chain) |
432 | { | |
433 | *pmy_chain = ptr->next; | |
0b080f59 VP |
434 | if (ptr->free_arg) |
435 | (*ptr->free_arg) (ptr->arg); | |
b8c9b27d | 436 | xfree (ptr); |
c906108c SS |
437 | } |
438 | } | |
439 | ||
440 | /* Set the cleanup_chain to 0, and return the old cleanup chain. */ | |
441 | struct cleanup * | |
fba45db2 | 442 | save_cleanups (void) |
c906108c | 443 | { |
c5aa993b | 444 | return save_my_cleanups (&cleanup_chain); |
c906108c SS |
445 | } |
446 | ||
447 | struct cleanup * | |
fba45db2 | 448 | save_final_cleanups (void) |
c906108c | 449 | { |
c5aa993b | 450 | return save_my_cleanups (&final_cleanup_chain); |
c906108c SS |
451 | } |
452 | ||
453 | struct cleanup * | |
fba45db2 | 454 | save_my_cleanups (struct cleanup **pmy_chain) |
c906108c SS |
455 | { |
456 | struct cleanup *old_chain = *pmy_chain; | |
457 | ||
458 | *pmy_chain = 0; | |
459 | return old_chain; | |
460 | } | |
461 | ||
462 | /* Restore the cleanup chain from a previously saved chain. */ | |
463 | void | |
fba45db2 | 464 | restore_cleanups (struct cleanup *chain) |
c906108c | 465 | { |
c5aa993b | 466 | restore_my_cleanups (&cleanup_chain, chain); |
c906108c SS |
467 | } |
468 | ||
469 | void | |
fba45db2 | 470 | restore_final_cleanups (struct cleanup *chain) |
c906108c | 471 | { |
c5aa993b | 472 | restore_my_cleanups (&final_cleanup_chain, chain); |
c906108c SS |
473 | } |
474 | ||
475 | void | |
fba45db2 | 476 | restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain) |
c906108c SS |
477 | { |
478 | *pmy_chain = chain; | |
479 | } | |
480 | ||
481 | /* This function is useful for cleanups. | |
482 | Do | |
483 | ||
c5aa993b JM |
484 | foo = xmalloc (...); |
485 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
486 | |
487 | to arrange to free the object thus allocated. */ | |
488 | ||
489 | void | |
2f9429ae | 490 | free_current_contents (void *ptr) |
c906108c | 491 | { |
2f9429ae | 492 | void **location = ptr; |
e0627e85 | 493 | |
e2f9c474 | 494 | if (location == NULL) |
8e65ff28 | 495 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 496 | _("free_current_contents: NULL pointer")); |
2f9429ae | 497 | if (*location != NULL) |
e2f9c474 | 498 | { |
b8c9b27d | 499 | xfree (*location); |
e2f9c474 AC |
500 | *location = NULL; |
501 | } | |
c906108c SS |
502 | } |
503 | ||
504 | /* Provide a known function that does nothing, to use as a base for | |
505 | for a possibly long chain of cleanups. This is useful where we | |
506 | use the cleanup chain for handling normal cleanups as well as dealing | |
507 | with cleanups that need to be done as a result of a call to error(). | |
508 | In such cases, we may not be certain where the first cleanup is, unless | |
509 | we have a do-nothing one to always use as the base. */ | |
510 | ||
c906108c | 511 | void |
e4005526 | 512 | null_cleanup (void *arg) |
c906108c SS |
513 | { |
514 | } | |
515 | ||
0ffe5012 PA |
516 | /* Continuations are implemented as cleanups internally. Inherit from |
517 | cleanups. */ | |
518 | struct continuation | |
519 | { | |
520 | struct cleanup base; | |
521 | }; | |
522 | ||
95e54da7 PA |
523 | /* Add a continuation to the continuation list of THREAD. The new |
524 | continuation will be added at the front. */ | |
43ff13b4 | 525 | void |
95e54da7 PA |
526 | add_continuation (struct thread_info *thread, |
527 | void (*continuation_hook) (void *), void *args, | |
604ead4a | 528 | void (*continuation_free_args) (void *)) |
43ff13b4 | 529 | { |
95e54da7 | 530 | struct cleanup *as_cleanup = &thread->continuations->base; |
604ead4a | 531 | make_cleanup_ftype *continuation_hook_fn = continuation_hook; |
43ff13b4 | 532 | |
0ffe5012 | 533 | make_my_cleanup2 (&as_cleanup, |
604ead4a PA |
534 | continuation_hook_fn, |
535 | args, | |
536 | continuation_free_args); | |
0ffe5012 | 537 | |
95e54da7 | 538 | thread->continuations = (struct continuation *) as_cleanup; |
43ff13b4 JM |
539 | } |
540 | ||
e0ba6746 PA |
541 | /* Add a continuation to the continuation list of INFERIOR. The new |
542 | continuation will be added at the front. */ | |
543 | ||
544 | void | |
545 | add_inferior_continuation (void (*continuation_hook) (void *), void *args, | |
546 | void (*continuation_free_args) (void *)) | |
547 | { | |
548 | struct inferior *inf = current_inferior (); | |
549 | struct cleanup *as_cleanup = &inf->continuations->base; | |
550 | make_cleanup_ftype *continuation_hook_fn = continuation_hook; | |
551 | ||
552 | make_my_cleanup2 (&as_cleanup, | |
553 | continuation_hook_fn, | |
554 | args, | |
555 | continuation_free_args); | |
556 | ||
557 | inf->continuations = (struct continuation *) as_cleanup; | |
558 | } | |
559 | ||
560 | /* Do all continuations of the current inferior. */ | |
561 | ||
562 | void | |
563 | do_all_inferior_continuations (void) | |
564 | { | |
e0ba6746 PA |
565 | struct cleanup *as_cleanup; |
566 | struct inferior *inf = current_inferior (); | |
567 | ||
568 | if (inf->continuations == NULL) | |
569 | return; | |
570 | ||
571 | /* Copy the list header into another pointer, and set the global | |
572 | list header to null, so that the global list can change as a side | |
573 | effect of invoking the continuations and the processing of the | |
574 | preexisting continuations will not be affected. */ | |
575 | ||
576 | as_cleanup = &inf->continuations->base; | |
577 | inf->continuations = NULL; | |
578 | ||
579 | /* Work now on the list we have set aside. */ | |
580 | do_my_cleanups (&as_cleanup, NULL); | |
581 | } | |
582 | ||
583 | /* Get rid of all the inferior-wide continuations of INF. */ | |
584 | ||
585 | void | |
586 | discard_all_inferior_continuations (struct inferior *inf) | |
587 | { | |
588 | struct cleanup *continuation_ptr = &inf->continuations->base; | |
e0627e85 | 589 | |
e0ba6746 PA |
590 | discard_my_cleanups (&continuation_ptr, NULL); |
591 | inf->continuations = NULL; | |
592 | } | |
593 | ||
95e54da7 PA |
594 | static void |
595 | restore_thread_cleanup (void *arg) | |
596 | { | |
597 | ptid_t *ptid_p = arg; | |
e0627e85 | 598 | |
95e54da7 PA |
599 | switch_to_thread (*ptid_p); |
600 | } | |
601 | ||
602 | /* Walk down the continuation list of PTID, and execute all the | |
603 | continuations. There is a problem though. In some cases new | |
604 | continuations may be added while we are in the middle of this loop. | |
605 | If this happens they will be added in the front, and done before we | |
606 | have a chance of exhausting those that were already there. We need | |
607 | to then save the beginning of the list in a pointer and do the | |
608 | continuations from there on, instead of using the global beginning | |
609 | of list as our iteration pointer. */ | |
610 | static void | |
611 | do_all_continuations_ptid (ptid_t ptid, | |
612 | struct continuation **continuations_p) | |
c2d11a7d | 613 | { |
95e54da7 PA |
614 | struct cleanup *old_chain; |
615 | ptid_t current_thread; | |
616 | struct cleanup *as_cleanup; | |
617 | ||
618 | if (*continuations_p == NULL) | |
619 | return; | |
620 | ||
621 | current_thread = inferior_ptid; | |
622 | ||
623 | /* Restore selected thread on exit. Don't try to restore the frame | |
624 | as well, because: | |
625 | ||
626 | - When running continuations, the selected frame is always #0. | |
627 | ||
628 | - The continuations may trigger symbol file loads, which may | |
629 | change the frame layout (frame ids change), which would trigger | |
630 | a warning if we used make_cleanup_restore_current_thread. */ | |
631 | ||
632 | old_chain = make_cleanup (restore_thread_cleanup, ¤t_thread); | |
633 | ||
634 | /* Let the continuation see this thread as selected. */ | |
635 | switch_to_thread (ptid); | |
c2d11a7d JM |
636 | |
637 | /* Copy the list header into another pointer, and set the global | |
638 | list header to null, so that the global list can change as a side | |
604ead4a PA |
639 | effect of invoking the continuations and the processing of the |
640 | preexisting continuations will not be affected. */ | |
641 | ||
95e54da7 PA |
642 | as_cleanup = &(*continuations_p)->base; |
643 | *continuations_p = NULL; | |
c2d11a7d | 644 | |
0a4a0819 | 645 | /* Work now on the list we have set aside. */ |
95e54da7 PA |
646 | do_my_cleanups (&as_cleanup, NULL); |
647 | ||
648 | do_cleanups (old_chain); | |
649 | } | |
650 | ||
651 | /* Callback for iterate over threads. */ | |
652 | static int | |
653 | do_all_continuations_thread_callback (struct thread_info *thread, void *data) | |
654 | { | |
655 | do_all_continuations_ptid (thread->ptid, &thread->continuations); | |
656 | return 0; | |
c2d11a7d JM |
657 | } |
658 | ||
95e54da7 | 659 | /* Do all continuations of thread THREAD. */ |
c2d11a7d | 660 | void |
95e54da7 PA |
661 | do_all_continuations_thread (struct thread_info *thread) |
662 | { | |
663 | do_all_continuations_thread_callback (thread, NULL); | |
664 | } | |
665 | ||
666 | /* Do all continuations of all threads. */ | |
667 | void | |
668 | do_all_continuations (void) | |
43ff13b4 | 669 | { |
95e54da7 PA |
670 | iterate_over_threads (do_all_continuations_thread_callback, NULL); |
671 | } | |
672 | ||
673 | /* Callback for iterate over threads. */ | |
674 | static int | |
675 | discard_all_continuations_thread_callback (struct thread_info *thread, | |
676 | void *data) | |
677 | { | |
678 | struct cleanup *continuation_ptr = &thread->continuations->base; | |
e0627e85 | 679 | |
0ffe5012 | 680 | discard_my_cleanups (&continuation_ptr, NULL); |
95e54da7 PA |
681 | thread->continuations = NULL; |
682 | return 0; | |
683 | } | |
684 | ||
685 | /* Get rid of all the continuations of THREAD. */ | |
686 | void | |
687 | discard_all_continuations_thread (struct thread_info *thread) | |
688 | { | |
689 | discard_all_continuations_thread_callback (thread, NULL); | |
690 | } | |
691 | ||
692 | /* Get rid of all the continuations of all threads. */ | |
693 | void | |
694 | discard_all_continuations (void) | |
695 | { | |
696 | iterate_over_threads (discard_all_continuations_thread_callback, NULL); | |
43ff13b4 | 697 | } |
c2c6d25f | 698 | |
95e54da7 PA |
699 | |
700 | /* Add a continuation to the intermediate continuation list of THREAD. | |
701 | The new continuation will be added at the front. */ | |
c2d11a7d | 702 | void |
95e54da7 PA |
703 | add_intermediate_continuation (struct thread_info *thread, |
704 | void (*continuation_hook) | |
604ead4a PA |
705 | (void *), void *args, |
706 | void (*continuation_free_args) (void *)) | |
c2d11a7d | 707 | { |
95e54da7 | 708 | struct cleanup *as_cleanup = &thread->intermediate_continuations->base; |
604ead4a | 709 | make_cleanup_ftype *continuation_hook_fn = continuation_hook; |
c2d11a7d | 710 | |
0ffe5012 | 711 | make_my_cleanup2 (&as_cleanup, |
604ead4a PA |
712 | continuation_hook_fn, |
713 | args, | |
714 | continuation_free_args); | |
0ffe5012 | 715 | |
95e54da7 | 716 | thread->intermediate_continuations = (struct continuation *) as_cleanup; |
c2d11a7d JM |
717 | } |
718 | ||
719 | /* Walk down the cmd_continuation list, and execute all the | |
720 | continuations. There is a problem though. In some cases new | |
721 | continuations may be added while we are in the middle of this | |
722 | loop. If this happens they will be added in the front, and done | |
723 | before we have a chance of exhausting those that were already | |
724 | there. We need to then save the beginning of the list in a pointer | |
725 | and do the continuations from there on, instead of using the | |
726 | global beginning of list as our iteration pointer.*/ | |
95e54da7 PA |
727 | static int |
728 | do_all_intermediate_continuations_thread_callback (struct thread_info *thread, | |
729 | void *data) | |
730 | { | |
731 | do_all_continuations_ptid (thread->ptid, | |
732 | &thread->intermediate_continuations); | |
733 | return 0; | |
734 | } | |
735 | ||
736 | /* Do all intermediate continuations of thread THREAD. */ | |
c2d11a7d | 737 | void |
95e54da7 | 738 | do_all_intermediate_continuations_thread (struct thread_info *thread) |
c2d11a7d | 739 | { |
95e54da7 PA |
740 | do_all_intermediate_continuations_thread_callback (thread, NULL); |
741 | } | |
c2d11a7d | 742 | |
95e54da7 PA |
743 | /* Do all intermediate continuations of all threads. */ |
744 | void | |
745 | do_all_intermediate_continuations (void) | |
746 | { | |
747 | iterate_over_threads (do_all_intermediate_continuations_thread_callback, NULL); | |
748 | } | |
604ead4a | 749 | |
95e54da7 PA |
750 | /* Callback for iterate over threads. */ |
751 | static int | |
752 | discard_all_intermediate_continuations_thread_callback (struct thread_info *thread, | |
753 | void *data) | |
754 | { | |
755 | struct cleanup *continuation_ptr = &thread->intermediate_continuations->base; | |
e0627e85 | 756 | |
95e54da7 PA |
757 | discard_my_cleanups (&continuation_ptr, NULL); |
758 | thread->intermediate_continuations = NULL; | |
759 | return 0; | |
760 | } | |
c2d11a7d | 761 | |
95e54da7 PA |
762 | /* Get rid of all the intermediate continuations of THREAD. */ |
763 | void | |
764 | discard_all_intermediate_continuations_thread (struct thread_info *thread) | |
765 | { | |
766 | discard_all_intermediate_continuations_thread_callback (thread, NULL); | |
c2d11a7d JM |
767 | } |
768 | ||
95e54da7 | 769 | /* Get rid of all the intermediate continuations of all threads. */ |
c2c6d25f | 770 | void |
fba45db2 | 771 | discard_all_intermediate_continuations (void) |
c2c6d25f | 772 | { |
95e54da7 | 773 | iterate_over_threads (discard_all_intermediate_continuations_thread_callback, NULL); |
c2c6d25f | 774 | } |
c906108c | 775 | \f |
c5aa993b | 776 | |
8731e58e | 777 | |
f5a96129 AC |
778 | /* Print a warning message. The first argument STRING is the warning |
779 | message, used as an fprintf format string, the second is the | |
780 | va_list of arguments for that string. A warning is unfiltered (not | |
781 | paginated) so that the user does not need to page through each | |
782 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
783 | |
784 | void | |
f5a96129 | 785 | vwarning (const char *string, va_list args) |
c906108c | 786 | { |
9a4105ab AC |
787 | if (deprecated_warning_hook) |
788 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
789 | else |
790 | { | |
791 | target_terminal_ours (); | |
792 | wrap_here (""); /* Force out any buffered output */ | |
793 | gdb_flush (gdb_stdout); | |
794 | if (warning_pre_print) | |
306d9ac5 | 795 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
796 | vfprintf_unfiltered (gdb_stderr, string, args); |
797 | fprintf_unfiltered (gdb_stderr, "\n"); | |
798 | va_end (args); | |
799 | } | |
c906108c SS |
800 | } |
801 | ||
802 | /* Print a warning message. | |
803 | The first argument STRING is the warning message, used as a fprintf string, | |
804 | and the remaining args are passed as arguments to it. | |
805 | The primary difference between warnings and errors is that a warning | |
806 | does not force the return to command level. */ | |
807 | ||
c906108c | 808 | void |
8731e58e | 809 | warning (const char *string, ...) |
c906108c SS |
810 | { |
811 | va_list args; | |
e0627e85 | 812 | |
c906108c | 813 | va_start (args, string); |
f5a96129 AC |
814 | vwarning (string, args); |
815 | va_end (args); | |
c906108c SS |
816 | } |
817 | ||
c906108c SS |
818 | /* Print an error message and return to command level. |
819 | The first argument STRING is the error message, used as a fprintf string, | |
820 | and the remaining args are passed as arguments to it. */ | |
821 | ||
c25c4a8b | 822 | void |
4ce44c66 JM |
823 | verror (const char *string, va_list args) |
824 | { | |
6b1b7650 | 825 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
826 | } |
827 | ||
c25c4a8b | 828 | void |
8731e58e | 829 | error (const char *string, ...) |
c906108c SS |
830 | { |
831 | va_list args; | |
e0627e85 | 832 | |
c906108c | 833 | va_start (args, string); |
6b1b7650 | 834 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 | 835 | va_end (args); |
c906108c SS |
836 | } |
837 | ||
d75e3c94 JJ |
838 | /* Print an error message and quit. |
839 | The first argument STRING is the error message, used as a fprintf string, | |
840 | and the remaining args are passed as arguments to it. */ | |
841 | ||
c25c4a8b | 842 | void |
d75e3c94 JJ |
843 | vfatal (const char *string, va_list args) |
844 | { | |
6b1b7650 | 845 | throw_vfatal (string, args); |
d75e3c94 JJ |
846 | } |
847 | ||
c25c4a8b | 848 | void |
d75e3c94 JJ |
849 | fatal (const char *string, ...) |
850 | { | |
851 | va_list args; | |
e0627e85 | 852 | |
d75e3c94 | 853 | va_start (args, string); |
6b1b7650 | 854 | throw_vfatal (string, args); |
d75e3c94 JJ |
855 | va_end (args); |
856 | } | |
857 | ||
c25c4a8b | 858 | void |
d75e3c94 | 859 | error_stream (struct ui_file *stream) |
2acceee2 | 860 | { |
759ef836 | 861 | char *message = ui_file_xstrdup (stream, NULL); |
e0627e85 | 862 | |
6b1b7650 | 863 | make_cleanup (xfree, message); |
8a3fe4f8 | 864 | error (("%s"), message); |
2acceee2 | 865 | } |
c906108c | 866 | |
7991dee7 JK |
867 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
868 | ||
869 | static void | |
870 | dump_core (void) | |
871 | { | |
872 | #ifdef HAVE_SETRLIMIT | |
873 | struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY }; | |
874 | ||
875 | setrlimit (RLIMIT_CORE, &rlim); | |
876 | #endif /* HAVE_SETRLIMIT */ | |
877 | ||
878 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
879 | } | |
880 | ||
881 | /* Check whether GDB will be able to dump core using the dump_core function. */ | |
882 | ||
883 | static int | |
884 | can_dump_core (const char *reason) | |
885 | { | |
886 | #ifdef HAVE_GETRLIMIT | |
887 | struct rlimit rlim; | |
888 | ||
889 | /* Be quiet and assume we can dump if an error is returned. */ | |
890 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
891 | return 1; | |
892 | ||
893 | if (rlim.rlim_max == 0) | |
894 | { | |
895 | fprintf_unfiltered (gdb_stderr, | |
896 | _("%s\nUnable to dump core, use `ulimit -c unlimited'" | |
897 | " before executing GDB next time.\n"), reason); | |
898 | return 0; | |
899 | } | |
900 | #endif /* HAVE_GETRLIMIT */ | |
901 | ||
902 | return 1; | |
903 | } | |
904 | ||
3c16cced PA |
905 | /* Allow the user to configure the debugger behavior with respect to |
906 | what to do when an internal problem is detected. */ | |
907 | ||
908 | const char internal_problem_ask[] = "ask"; | |
909 | const char internal_problem_yes[] = "yes"; | |
910 | const char internal_problem_no[] = "no"; | |
911 | static const char *internal_problem_modes[] = | |
912 | { | |
913 | internal_problem_ask, | |
914 | internal_problem_yes, | |
915 | internal_problem_no, | |
916 | NULL | |
917 | }; | |
3c16cced | 918 | |
dec43320 AC |
919 | /* Print a message reporting an internal error/warning. Ask the user |
920 | if they want to continue, dump core, or just exit. Return | |
921 | something to indicate a quit. */ | |
c906108c | 922 | |
dec43320 | 923 | struct internal_problem |
c906108c | 924 | { |
dec43320 | 925 | const char *name; |
3c16cced PA |
926 | const char *should_quit; |
927 | const char *should_dump_core; | |
dec43320 AC |
928 | }; |
929 | ||
930 | /* Report a problem, internal to GDB, to the user. Once the problem | |
931 | has been reported, and assuming GDB didn't quit, the caller can | |
932 | either allow execution to resume or throw an error. */ | |
933 | ||
a0b31db1 | 934 | static void ATTRIBUTE_PRINTF (4, 0) |
dec43320 | 935 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 936 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 937 | { |
dec43320 | 938 | static int dejavu; |
375fc983 | 939 | int quit_p; |
7be570e7 | 940 | int dump_core_p; |
714b1282 | 941 | char *reason; |
c906108c | 942 | |
dec43320 | 943 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
944 | { |
945 | static char msg[] = "Recursive internal problem.\n"; | |
5d502164 | 946 | |
714b1282 AC |
947 | switch (dejavu) |
948 | { | |
949 | case 0: | |
950 | dejavu = 1; | |
951 | break; | |
952 | case 1: | |
953 | dejavu = 2; | |
954 | fputs_unfiltered (msg, gdb_stderr); | |
7991dee7 | 955 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
956 | default: |
957 | dejavu = 3; | |
bf1d7d9c JB |
958 | /* Newer GLIBC versions put the warn_unused_result attribute |
959 | on write, but this is one of those rare cases where | |
960 | ignoring the return value is correct. Casting to (void) | |
961 | does not fix this problem. This is the solution suggested | |
962 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
963 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
7991dee7 | 964 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
965 | exit (1); |
966 | } | |
967 | } | |
c906108c | 968 | |
dec43320 | 969 | /* Try to get the message out and at the start of a new line. */ |
4261bedc | 970 | target_terminal_ours (); |
dec43320 AC |
971 | begin_line (); |
972 | ||
714b1282 AC |
973 | /* Create a string containing the full error/warning message. Need |
974 | to call query with this full string, as otherwize the reason | |
975 | (error/warning) and question become separated. Format using a | |
976 | style similar to a compiler error message. Include extra detail | |
977 | so that the user knows that they are living on the edge. */ | |
978 | { | |
979 | char *msg; | |
5d502164 | 980 | |
e623b504 | 981 | msg = xstrvprintf (fmt, ap); |
b435e160 | 982 | reason = xstrprintf ("\ |
714b1282 AC |
983 | %s:%d: %s: %s\n\ |
984 | A problem internal to GDB has been detected,\n\ | |
985 | further debugging may prove unreliable.", file, line, problem->name, msg); | |
986 | xfree (msg); | |
987 | make_cleanup (xfree, reason); | |
988 | } | |
7be570e7 | 989 | |
3c16cced | 990 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 991 | { |
dec43320 | 992 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
993 | this lessens the likelihood of GDB going into an infinite |
994 | loop. */ | |
26bb68be PP |
995 | if (caution == 0) |
996 | { | |
997 | /* Emit the message and quit. */ | |
998 | fputs_unfiltered (reason, gdb_stderr); | |
999 | fputs_unfiltered ("\n", gdb_stderr); | |
1000 | quit_p = 1; | |
1001 | } | |
1002 | else | |
1003 | quit_p = query (_("%s\nQuit this debugging session? "), reason); | |
dec43320 | 1004 | } |
3c16cced PA |
1005 | else if (problem->should_quit == internal_problem_yes) |
1006 | quit_p = 1; | |
1007 | else if (problem->should_quit == internal_problem_no) | |
1008 | quit_p = 0; | |
1009 | else | |
1010 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 1011 | |
3c16cced | 1012 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 1013 | { |
7991dee7 JK |
1014 | if (!can_dump_core (reason)) |
1015 | dump_core_p = 0; | |
1016 | else | |
1017 | { | |
1018 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
1019 | `dropping' so that it is easier to see that something went | |
1020 | wrong in GDB. */ | |
1021 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason); | |
1022 | } | |
dec43320 | 1023 | } |
3c16cced | 1024 | else if (problem->should_dump_core == internal_problem_yes) |
7991dee7 | 1025 | dump_core_p = can_dump_core (reason); |
3c16cced PA |
1026 | else if (problem->should_dump_core == internal_problem_no) |
1027 | dump_core_p = 0; | |
1028 | else | |
1029 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 1030 | |
375fc983 | 1031 | if (quit_p) |
7be570e7 JM |
1032 | { |
1033 | if (dump_core_p) | |
7991dee7 | 1034 | dump_core (); |
375fc983 AC |
1035 | else |
1036 | exit (1); | |
7be570e7 JM |
1037 | } |
1038 | else | |
1039 | { | |
1040 | if (dump_core_p) | |
375fc983 | 1041 | { |
9b265ec2 | 1042 | #ifdef HAVE_WORKING_FORK |
375fc983 | 1043 | if (fork () == 0) |
7991dee7 | 1044 | dump_core (); |
9b265ec2 | 1045 | #endif |
375fc983 | 1046 | } |
7be570e7 | 1047 | } |
96baa820 JM |
1048 | |
1049 | dejavu = 0; | |
dec43320 AC |
1050 | } |
1051 | ||
1052 | static struct internal_problem internal_error_problem = { | |
3c16cced | 1053 | "internal-error", internal_problem_ask, internal_problem_ask |
dec43320 AC |
1054 | }; |
1055 | ||
c25c4a8b | 1056 | void |
8731e58e | 1057 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
1058 | { |
1059 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
315a522e | 1060 | deprecated_throw_reason (RETURN_ERROR); |
c906108c SS |
1061 | } |
1062 | ||
c25c4a8b | 1063 | void |
8e65ff28 | 1064 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
1065 | { |
1066 | va_list ap; | |
e0627e85 | 1067 | |
4ce44c66 | 1068 | va_start (ap, string); |
8e65ff28 | 1069 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
1070 | va_end (ap); |
1071 | } | |
1072 | ||
dec43320 | 1073 | static struct internal_problem internal_warning_problem = { |
3c16cced | 1074 | "internal-warning", internal_problem_ask, internal_problem_ask |
dec43320 AC |
1075 | }; |
1076 | ||
1077 | void | |
8731e58e | 1078 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
1079 | { |
1080 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
1081 | } | |
1082 | ||
1083 | void | |
1084 | internal_warning (const char *file, int line, const char *string, ...) | |
1085 | { | |
1086 | va_list ap; | |
e0627e85 | 1087 | |
dec43320 AC |
1088 | va_start (ap, string); |
1089 | internal_vwarning (file, line, string, ap); | |
1090 | va_end (ap); | |
1091 | } | |
1092 | ||
3c16cced PA |
1093 | /* Dummy functions to keep add_prefix_cmd happy. */ |
1094 | ||
1095 | static void | |
1096 | set_internal_problem_cmd (char *args, int from_tty) | |
1097 | { | |
1098 | } | |
1099 | ||
1100 | static void | |
1101 | show_internal_problem_cmd (char *args, int from_tty) | |
1102 | { | |
1103 | } | |
1104 | ||
1105 | /* When GDB reports an internal problem (error or warning) it gives | |
1106 | the user the opportunity to quit GDB and/or create a core file of | |
1107 | the current debug session. This function registers a few commands | |
1108 | that make it possible to specify that GDB should always or never | |
1109 | quit or create a core file, without asking. The commands look | |
1110 | like: | |
1111 | ||
1112 | maint set PROBLEM-NAME quit ask|yes|no | |
1113 | maint show PROBLEM-NAME quit | |
1114 | maint set PROBLEM-NAME corefile ask|yes|no | |
1115 | maint show PROBLEM-NAME corefile | |
1116 | ||
1117 | Where PROBLEM-NAME is currently "internal-error" or | |
1118 | "internal-warning". */ | |
1119 | ||
1120 | static void | |
1121 | add_internal_problem_command (struct internal_problem *problem) | |
1122 | { | |
1123 | struct cmd_list_element **set_cmd_list; | |
1124 | struct cmd_list_element **show_cmd_list; | |
1125 | char *set_doc; | |
1126 | char *show_doc; | |
1127 | ||
1128 | set_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
1129 | show_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
1130 | *set_cmd_list = NULL; | |
1131 | *show_cmd_list = NULL; | |
1132 | ||
1133 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
1134 | problem->name); | |
1135 | ||
1136 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
1137 | problem->name); | |
1138 | ||
1139 | add_prefix_cmd ((char*) problem->name, | |
1140 | class_maintenance, set_internal_problem_cmd, set_doc, | |
1141 | set_cmd_list, | |
c4f7c687 MK |
1142 | concat ("maintenance set ", problem->name, " ", |
1143 | (char *) NULL), | |
3c16cced PA |
1144 | 0/*allow-unknown*/, &maintenance_set_cmdlist); |
1145 | ||
1146 | add_prefix_cmd ((char*) problem->name, | |
1147 | class_maintenance, show_internal_problem_cmd, show_doc, | |
1148 | show_cmd_list, | |
c4f7c687 MK |
1149 | concat ("maintenance show ", problem->name, " ", |
1150 | (char *) NULL), | |
3c16cced PA |
1151 | 0/*allow-unknown*/, &maintenance_show_cmdlist); |
1152 | ||
1153 | set_doc = xstrprintf (_("\ | |
1154 | Set whether GDB should quit when an %s is detected"), | |
1155 | problem->name); | |
1156 | show_doc = xstrprintf (_("\ | |
1157 | Show whether GDB will quit when an %s is detected"), | |
1158 | problem->name); | |
1159 | add_setshow_enum_cmd ("quit", class_maintenance, | |
1160 | internal_problem_modes, | |
1161 | &problem->should_quit, | |
1162 | set_doc, | |
1163 | show_doc, | |
1164 | NULL, /* help_doc */ | |
1165 | NULL, /* setfunc */ | |
1166 | NULL, /* showfunc */ | |
1167 | set_cmd_list, | |
1168 | show_cmd_list); | |
1169 | ||
1eefb858 TT |
1170 | xfree (set_doc); |
1171 | xfree (show_doc); | |
1172 | ||
3c16cced PA |
1173 | set_doc = xstrprintf (_("\ |
1174 | Set whether GDB should create a core file of GDB when %s is detected"), | |
1175 | problem->name); | |
1176 | show_doc = xstrprintf (_("\ | |
1177 | Show whether GDB will create a core file of GDB when %s is detected"), | |
1178 | problem->name); | |
1179 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
1180 | internal_problem_modes, | |
1181 | &problem->should_dump_core, | |
1182 | set_doc, | |
1183 | show_doc, | |
1184 | NULL, /* help_doc */ | |
1185 | NULL, /* setfunc */ | |
1186 | NULL, /* showfunc */ | |
1187 | set_cmd_list, | |
1188 | show_cmd_list); | |
1eefb858 TT |
1189 | |
1190 | xfree (set_doc); | |
1191 | xfree (show_doc); | |
3c16cced PA |
1192 | } |
1193 | ||
c906108c SS |
1194 | /* Print the system error message for errno, and also mention STRING |
1195 | as the file name for which the error was encountered. | |
1196 | Then return to command level. */ | |
1197 | ||
c25c4a8b | 1198 | void |
6972bc8b | 1199 | perror_with_name (const char *string) |
c906108c SS |
1200 | { |
1201 | char *err; | |
1202 | char *combined; | |
1203 | ||
1204 | err = safe_strerror (errno); | |
1205 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1206 | strcpy (combined, string); | |
1207 | strcat (combined, ": "); | |
1208 | strcat (combined, err); | |
1209 | ||
1210 | /* I understand setting these is a matter of taste. Still, some people | |
1211 | may clear errno but not know about bfd_error. Doing this here is not | |
1212 | unreasonable. */ | |
1213 | bfd_set_error (bfd_error_no_error); | |
1214 | errno = 0; | |
1215 | ||
8a3fe4f8 | 1216 | error (_("%s."), combined); |
c906108c SS |
1217 | } |
1218 | ||
1219 | /* Print the system error message for ERRCODE, and also mention STRING | |
1220 | as the file name for which the error was encountered. */ | |
1221 | ||
1222 | void | |
6972bc8b | 1223 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
1224 | { |
1225 | char *err; | |
1226 | char *combined; | |
1227 | ||
1228 | err = safe_strerror (errcode); | |
1229 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1230 | strcpy (combined, string); | |
1231 | strcat (combined, ": "); | |
1232 | strcat (combined, err); | |
1233 | ||
1234 | /* We want anything which was printed on stdout to come out first, before | |
1235 | this message. */ | |
1236 | gdb_flush (gdb_stdout); | |
1237 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
1238 | } | |
1239 | ||
1240 | /* Control C eventually causes this to be called, at a convenient time. */ | |
1241 | ||
1242 | void | |
fba45db2 | 1243 | quit (void) |
c906108c | 1244 | { |
7be570e7 JM |
1245 | #ifdef __MSDOS__ |
1246 | /* No steenking SIGINT will ever be coming our way when the | |
1247 | program is resumed. Don't lie. */ | |
e06e2353 | 1248 | fatal ("Quit"); |
7be570e7 | 1249 | #else |
c906108c | 1250 | if (job_control |
8731e58e AC |
1251 | /* If there is no terminal switching for this target, then we can't |
1252 | possibly get screwed by the lack of job control. */ | |
c906108c | 1253 | || current_target.to_terminal_ours == NULL) |
e06e2353 | 1254 | fatal ("Quit"); |
c906108c | 1255 | else |
e06e2353 | 1256 | fatal ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 1257 | #endif |
c906108c SS |
1258 | } |
1259 | ||
c906108c | 1260 | \f |
c906108c SS |
1261 | /* Called when a memory allocation fails, with the number of bytes of |
1262 | memory requested in SIZE. */ | |
1263 | ||
c25c4a8b | 1264 | void |
fba45db2 | 1265 | nomem (long size) |
c906108c SS |
1266 | { |
1267 | if (size > 0) | |
1268 | { | |
8e65ff28 | 1269 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 1270 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 1271 | size); |
c906108c SS |
1272 | } |
1273 | else | |
1274 | { | |
e2e0b3e5 | 1275 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
1276 | } |
1277 | } | |
1278 | ||
c0e61796 AC |
1279 | /* The xmalloc() (libiberty.h) family of memory management routines. |
1280 | ||
1281 | These are like the ISO-C malloc() family except that they implement | |
1282 | consistent semantics and guard against typical memory management | |
7936743b | 1283 | problems. */ |
c0e61796 AC |
1284 | |
1285 | /* NOTE: These are declared using PTR to ensure consistency with | |
1286 | "libiberty.h". xfree() is GDB local. */ | |
1287 | ||
5ac79d78 | 1288 | PTR /* ARI: PTR */ |
c0e61796 AC |
1289 | xmalloc (size_t size) |
1290 | { | |
7936743b AC |
1291 | void *val; |
1292 | ||
1293 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1294 | semantics. It never returns NULL. */ | |
1295 | if (size == 0) | |
1296 | size = 1; | |
1297 | ||
5ac79d78 | 1298 | val = malloc (size); /* ARI: malloc */ |
7936743b AC |
1299 | if (val == NULL) |
1300 | nomem (size); | |
1301 | ||
1302 | return (val); | |
c0e61796 | 1303 | } |
c906108c | 1304 | |
5b90c7b5 AC |
1305 | void * |
1306 | xzalloc (size_t size) | |
1307 | { | |
1308 | return xcalloc (1, size); | |
1309 | } | |
1310 | ||
5ac79d78 PM |
1311 | PTR /* ARI: PTR */ |
1312 | xrealloc (PTR ptr, size_t size) /* ARI: PTR */ | |
c906108c | 1313 | { |
0efffb96 AC |
1314 | void *val; |
1315 | ||
1316 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1317 | semantics. It never returns NULL. */ | |
1318 | if (size == 0) | |
1319 | size = 1; | |
1320 | ||
1321 | if (ptr != NULL) | |
5ac79d78 | 1322 | val = realloc (ptr, size); /* ARI: realloc */ |
0efffb96 | 1323 | else |
5ac79d78 | 1324 | val = malloc (size); /* ARI: malloc */ |
0efffb96 AC |
1325 | if (val == NULL) |
1326 | nomem (size); | |
1327 | ||
1328 | return (val); | |
c906108c | 1329 | } |
b8c9b27d | 1330 | |
5ac79d78 | 1331 | PTR /* ARI: PTR */ |
c0e61796 AC |
1332 | xcalloc (size_t number, size_t size) |
1333 | { | |
aa2ee5f6 AC |
1334 | void *mem; |
1335 | ||
1336 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1337 | semantics. It never returns NULL. */ | |
1338 | if (number == 0 || size == 0) | |
1339 | { | |
1340 | number = 1; | |
1341 | size = 1; | |
1342 | } | |
1343 | ||
5ac79d78 | 1344 | mem = calloc (number, size); /* ARI: xcalloc */ |
aa2ee5f6 AC |
1345 | if (mem == NULL) |
1346 | nomem (number * size); | |
1347 | ||
1348 | return mem; | |
c0e61796 | 1349 | } |
b8c9b27d KB |
1350 | |
1351 | void | |
1352 | xfree (void *ptr) | |
1353 | { | |
2dc74dc1 | 1354 | if (ptr != NULL) |
5ac79d78 | 1355 | free (ptr); /* ARI: free */ |
b8c9b27d | 1356 | } |
c906108c | 1357 | \f |
c5aa993b | 1358 | |
76995688 AC |
1359 | /* Like asprintf/vasprintf but get an internal_error if the call |
1360 | fails. */ | |
1361 | ||
9ebf4acf AC |
1362 | char * |
1363 | xstrprintf (const char *format, ...) | |
1364 | { | |
1365 | char *ret; | |
1366 | va_list args; | |
e0627e85 | 1367 | |
9ebf4acf | 1368 | va_start (args, format); |
e623b504 | 1369 | ret = xstrvprintf (format, args); |
9ebf4acf AC |
1370 | va_end (args); |
1371 | return ret; | |
1372 | } | |
1373 | ||
76995688 AC |
1374 | void |
1375 | xasprintf (char **ret, const char *format, ...) | |
1376 | { | |
1377 | va_list args; | |
e0627e85 | 1378 | |
76995688 | 1379 | va_start (args, format); |
e623b504 | 1380 | (*ret) = xstrvprintf (format, args); |
76995688 AC |
1381 | va_end (args); |
1382 | } | |
1383 | ||
1384 | void | |
1385 | xvasprintf (char **ret, const char *format, va_list ap) | |
1386 | { | |
a552edd9 | 1387 | (*ret) = xstrvprintf (format, ap); |
76995688 AC |
1388 | } |
1389 | ||
e623b504 AC |
1390 | char * |
1391 | xstrvprintf (const char *format, va_list ap) | |
1392 | { | |
1393 | char *ret = NULL; | |
1394 | int status = vasprintf (&ret, format, ap); | |
e0627e85 | 1395 | |
46e9880c DJ |
1396 | /* NULL is returned when there was a memory allocation problem, or |
1397 | any other error (for instance, a bad format string). A negative | |
1398 | status (the printed length) with a non-NULL buffer should never | |
1399 | happen, but just to be sure. */ | |
1400 | if (ret == NULL || status < 0) | |
1401 | internal_error (__FILE__, __LINE__, _("vasprintf call failed")); | |
e623b504 AC |
1402 | return ret; |
1403 | } | |
76995688 | 1404 | |
bde2058d MK |
1405 | int |
1406 | xsnprintf (char *str, size_t size, const char *format, ...) | |
1407 | { | |
1408 | va_list args; | |
1409 | int ret; | |
1410 | ||
1411 | va_start (args, format); | |
1412 | ret = vsnprintf (str, size, format, args); | |
1413 | gdb_assert (ret < size); | |
1414 | va_end (args); | |
1415 | ||
1416 | return ret; | |
1417 | } | |
1418 | ||
c906108c SS |
1419 | /* My replacement for the read system call. |
1420 | Used like `read' but keeps going if `read' returns too soon. */ | |
1421 | ||
1422 | int | |
fba45db2 | 1423 | myread (int desc, char *addr, int len) |
c906108c | 1424 | { |
52f0bd74 | 1425 | int val; |
c906108c SS |
1426 | int orglen = len; |
1427 | ||
1428 | while (len > 0) | |
1429 | { | |
1430 | val = read (desc, addr, len); | |
1431 | if (val < 0) | |
1432 | return val; | |
1433 | if (val == 0) | |
1434 | return orglen - len; | |
1435 | len -= val; | |
1436 | addr += val; | |
1437 | } | |
1438 | return orglen; | |
1439 | } | |
1440 | \f | |
1441 | /* Make a copy of the string at PTR with SIZE characters | |
1442 | (and add a null character at the end in the copy). | |
1443 | Uses malloc to get the space. Returns the address of the copy. */ | |
1444 | ||
1445 | char * | |
5565b556 | 1446 | savestring (const char *ptr, size_t size) |
c906108c | 1447 | { |
52f0bd74 | 1448 | char *p = (char *) xmalloc (size + 1); |
e0627e85 | 1449 | |
c906108c SS |
1450 | memcpy (p, ptr, size); |
1451 | p[size] = 0; | |
1452 | return p; | |
1453 | } | |
1454 | ||
c906108c | 1455 | void |
aa1ee363 | 1456 | print_spaces (int n, struct ui_file *file) |
c906108c | 1457 | { |
392a587b | 1458 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1459 | } |
1460 | ||
1461 | /* Print a host address. */ | |
1462 | ||
1463 | void | |
ac16bf07 | 1464 | gdb_print_host_address (const void *addr, struct ui_file *stream) |
c906108c | 1465 | { |
ea8992ce | 1466 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 1467 | } |
c906108c | 1468 | \f |
c5aa993b | 1469 | |
981c7f5a | 1470 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 1471 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
1472 | answer is yes, or default the answer to the specified default |
1473 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
1474 | default answer, or '\0' for no default. | |
cbdeadca JJ |
1475 | CTLSTR is the control string and should end in "? ". It should |
1476 | not say how to answer, because we do that. | |
1477 | ARGS are the arguments passed along with the CTLSTR argument to | |
1478 | printf. */ | |
1479 | ||
a0b31db1 | 1480 | static int ATTRIBUTE_PRINTF (1, 0) |
cbdeadca JJ |
1481 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
1482 | { | |
1483 | int answer; | |
1484 | int ans2; | |
1485 | int retval; | |
1486 | int def_value; | |
1487 | char def_answer, not_def_answer; | |
981c7f5a | 1488 | char *y_string, *n_string, *question; |
cbdeadca JJ |
1489 | |
1490 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
1491 | if (defchar == '\0') |
1492 | { | |
1493 | def_value = 1; | |
1494 | def_answer = 'Y'; | |
1495 | not_def_answer = 'N'; | |
1496 | y_string = "y"; | |
1497 | n_string = "n"; | |
1498 | } | |
1499 | else if (defchar == 'y') | |
cbdeadca JJ |
1500 | { |
1501 | def_value = 1; | |
1502 | def_answer = 'Y'; | |
1503 | not_def_answer = 'N'; | |
1504 | y_string = "[y]"; | |
1505 | n_string = "n"; | |
1506 | } | |
1507 | else | |
1508 | { | |
1509 | def_value = 0; | |
1510 | def_answer = 'N'; | |
1511 | not_def_answer = 'Y'; | |
1512 | y_string = "y"; | |
1513 | n_string = "[n]"; | |
1514 | } | |
1515 | ||
981c7f5a | 1516 | /* Automatically answer the default value if the user did not want |
a502cf95 NR |
1517 | prompts or the command was issued with the server prefix. */ |
1518 | if (! caution || server_command) | |
981c7f5a DJ |
1519 | return def_value; |
1520 | ||
1521 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 1522 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
1523 | way, important error messages don't get lost when talking to GDB |
1524 | over a pipe. */ | |
7c953934 | 1525 | if (batch_flag || ! input_from_terminal_p ()) |
981c7f5a DJ |
1526 | { |
1527 | wrap_here (""); | |
1528 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1529 | ||
1530 | printf_filtered (_("(%s or %s) [answered %c; input not from terminal]\n"), | |
1531 | y_string, n_string, def_answer); | |
1532 | gdb_flush (gdb_stdout); | |
1533 | ||
1534 | return def_value; | |
1535 | } | |
1536 | ||
9a4105ab | 1537 | if (deprecated_query_hook) |
cbdeadca | 1538 | { |
9a4105ab | 1539 | return deprecated_query_hook (ctlstr, args); |
cbdeadca JJ |
1540 | } |
1541 | ||
981c7f5a DJ |
1542 | /* Format the question outside of the loop, to avoid reusing args. */ |
1543 | question = xstrvprintf (ctlstr, args); | |
1544 | ||
cbdeadca JJ |
1545 | while (1) |
1546 | { | |
1547 | wrap_here (""); /* Flush any buffered output */ | |
1548 | gdb_flush (gdb_stdout); | |
1549 | ||
1550 | if (annotation_level > 1) | |
a3f17187 | 1551 | printf_filtered (("\n\032\032pre-query\n")); |
cbdeadca | 1552 | |
981c7f5a | 1553 | fputs_filtered (question, gdb_stdout); |
a3f17187 | 1554 | printf_filtered (_("(%s or %s) "), y_string, n_string); |
cbdeadca JJ |
1555 | |
1556 | if (annotation_level > 1) | |
a3f17187 | 1557 | printf_filtered (("\n\032\032query\n")); |
cbdeadca JJ |
1558 | |
1559 | wrap_here (""); | |
1560 | gdb_flush (gdb_stdout); | |
1561 | ||
1562 | answer = fgetc (stdin); | |
8626589c JB |
1563 | |
1564 | /* We expect fgetc to block until a character is read. But | |
1565 | this may not be the case if the terminal was opened with | |
1566 | the NONBLOCK flag. In that case, if there is nothing to | |
1567 | read on stdin, fgetc returns EOF, but also sets the error | |
1568 | condition flag on stdin and errno to EAGAIN. With a true | |
1569 | EOF, stdin's error condition flag is not set. | |
1570 | ||
1571 | A situation where this behavior was observed is a pseudo | |
1572 | terminal on AIX. */ | |
1573 | while (answer == EOF && ferror (stdin) && errno == EAGAIN) | |
1574 | { | |
1575 | /* Not a real EOF. Wait a little while and try again until | |
1576 | we read something. */ | |
1577 | clearerr (stdin); | |
1578 | gdb_usleep (10000); | |
1579 | answer = fgetc (stdin); | |
1580 | } | |
1581 | ||
cbdeadca JJ |
1582 | clearerr (stdin); /* in case of C-d */ |
1583 | if (answer == EOF) /* C-d */ | |
1584 | { | |
fa3fd85b | 1585 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
1586 | retval = def_value; |
1587 | break; | |
1588 | } | |
1589 | /* Eat rest of input line, to EOF or newline */ | |
1590 | if (answer != '\n') | |
1591 | do | |
1592 | { | |
1593 | ans2 = fgetc (stdin); | |
1594 | clearerr (stdin); | |
1595 | } | |
1596 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); | |
1597 | ||
1598 | if (answer >= 'a') | |
1599 | answer -= 040; | |
1600 | /* Check answer. For the non-default, the user must specify | |
1601 | the non-default explicitly. */ | |
1602 | if (answer == not_def_answer) | |
1603 | { | |
1604 | retval = !def_value; | |
1605 | break; | |
1606 | } | |
981c7f5a DJ |
1607 | /* Otherwise, if a default was specified, the user may either |
1608 | specify the required input or have it default by entering | |
1609 | nothing. */ | |
1610 | if (answer == def_answer | |
1611 | || (defchar != '\0' && | |
1612 | (answer == '\n' || answer == '\r' || answer == EOF))) | |
cbdeadca JJ |
1613 | { |
1614 | retval = def_value; | |
1615 | break; | |
1616 | } | |
1617 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 1618 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
1619 | y_string, n_string); |
1620 | } | |
1621 | ||
981c7f5a | 1622 | xfree (question); |
cbdeadca | 1623 | if (annotation_level > 1) |
a3f17187 | 1624 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
1625 | return retval; |
1626 | } | |
1627 | \f | |
1628 | ||
1629 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1630 | answer is yes, or 0 if answer is defaulted. | |
1631 | Takes three args which are given to printf to print the question. | |
1632 | The first, a control string, should end in "? ". | |
1633 | It should not say how to answer, because we do that. */ | |
1634 | ||
1635 | int | |
1636 | nquery (const char *ctlstr, ...) | |
1637 | { | |
1638 | va_list args; | |
1639 | ||
1640 | va_start (args, ctlstr); | |
1641 | return defaulted_query (ctlstr, 'n', args); | |
1642 | va_end (args); | |
1643 | } | |
1644 | ||
1645 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1646 | answer is yes, or 1 if answer is defaulted. | |
1647 | Takes three args which are given to printf to print the question. | |
1648 | The first, a control string, should end in "? ". | |
1649 | It should not say how to answer, because we do that. */ | |
1650 | ||
1651 | int | |
1652 | yquery (const char *ctlstr, ...) | |
1653 | { | |
1654 | va_list args; | |
1655 | ||
1656 | va_start (args, ctlstr); | |
1657 | return defaulted_query (ctlstr, 'y', args); | |
1658 | va_end (args); | |
1659 | } | |
1660 | ||
981c7f5a DJ |
1661 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
1662 | Takes three args which are given to printf to print the question. | |
1663 | The first, a control string, should end in "? ". | |
1664 | It should not say how to answer, because we do that. */ | |
1665 | ||
1666 | int | |
1667 | query (const char *ctlstr, ...) | |
1668 | { | |
1669 | va_list args; | |
1670 | ||
1671 | va_start (args, ctlstr); | |
1672 | return defaulted_query (ctlstr, '\0', args); | |
1673 | va_end (args); | |
1674 | } | |
1675 | ||
6c7a06a3 TT |
1676 | /* A helper for parse_escape that converts a host character to a |
1677 | target character. C is the host character. If conversion is | |
1678 | possible, then the target character is stored in *TARGET_C and the | |
1679 | function returns 1. Otherwise, the function returns 0. */ | |
1680 | ||
1681 | static int | |
f870a310 | 1682 | host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c) |
234b45d4 | 1683 | { |
6c7a06a3 TT |
1684 | struct obstack host_data; |
1685 | char the_char = c; | |
1686 | struct cleanup *cleanups; | |
1687 | int result = 0; | |
234b45d4 | 1688 | |
6c7a06a3 TT |
1689 | obstack_init (&host_data); |
1690 | cleanups = make_cleanup_obstack_free (&host_data); | |
234b45d4 | 1691 | |
f870a310 | 1692 | convert_between_encodings (target_charset (gdbarch), host_charset (), |
6c7a06a3 TT |
1693 | &the_char, 1, 1, &host_data, translit_none); |
1694 | ||
1695 | if (obstack_object_size (&host_data) == 1) | |
1696 | { | |
1697 | result = 1; | |
1698 | *target_c = *(char *) obstack_base (&host_data); | |
1699 | } | |
1700 | ||
1701 | do_cleanups (cleanups); | |
1702 | return result; | |
234b45d4 KB |
1703 | } |
1704 | ||
c906108c SS |
1705 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1706 | containing a pointer to the string to parse. That pointer | |
1707 | should point to the character after the \. That pointer | |
1708 | is updated past the characters we use. The value of the | |
1709 | escape sequence is returned. | |
1710 | ||
1711 | A negative value means the sequence \ newline was seen, | |
1712 | which is supposed to be equivalent to nothing at all. | |
1713 | ||
1714 | If \ is followed by a null character, we return a negative | |
1715 | value and leave the string pointer pointing at the null character. | |
1716 | ||
1717 | If \ is followed by 000, we return 0 and leave the string pointer | |
1718 | after the zeros. A value of 0 does not mean end of string. */ | |
1719 | ||
1720 | int | |
f870a310 | 1721 | parse_escape (struct gdbarch *gdbarch, char **string_ptr) |
c906108c | 1722 | { |
27e3013d | 1723 | int target_char = -2; /* initialize to avoid GCC warnings */ |
52f0bd74 | 1724 | int c = *(*string_ptr)++; |
e0627e85 | 1725 | |
6c7a06a3 TT |
1726 | switch (c) |
1727 | { | |
8731e58e AC |
1728 | case '\n': |
1729 | return -2; | |
1730 | case 0: | |
1731 | (*string_ptr)--; | |
1732 | return 0; | |
8731e58e AC |
1733 | |
1734 | case '0': | |
1735 | case '1': | |
1736 | case '2': | |
1737 | case '3': | |
1738 | case '4': | |
1739 | case '5': | |
1740 | case '6': | |
1741 | case '7': | |
1742 | { | |
6c7a06a3 | 1743 | int i = host_hex_value (c); |
aa1ee363 | 1744 | int count = 0; |
8731e58e AC |
1745 | while (++count < 3) |
1746 | { | |
5cb316ef | 1747 | c = (**string_ptr); |
6c7a06a3 | 1748 | if (isdigit (c) && c != '8' && c != '9') |
8731e58e | 1749 | { |
5cb316ef | 1750 | (*string_ptr)++; |
8731e58e | 1751 | i *= 8; |
6c7a06a3 | 1752 | i += host_hex_value (c); |
8731e58e AC |
1753 | } |
1754 | else | |
1755 | { | |
8731e58e AC |
1756 | break; |
1757 | } | |
1758 | } | |
1759 | return i; | |
1760 | } | |
6c7a06a3 TT |
1761 | |
1762 | case 'a': | |
1763 | c = '\a'; | |
1764 | break; | |
1765 | case 'b': | |
1766 | c = '\b'; | |
1767 | break; | |
1768 | case 'f': | |
1769 | c = '\f'; | |
1770 | break; | |
1771 | case 'n': | |
1772 | c = '\n'; | |
1773 | break; | |
1774 | case 'r': | |
1775 | c = '\r'; | |
1776 | break; | |
1777 | case 't': | |
1778 | c = '\t'; | |
1779 | break; | |
1780 | case 'v': | |
1781 | c = '\v'; | |
1782 | break; | |
1783 | ||
1784 | default: | |
1785 | break; | |
1786 | } | |
1787 | ||
f870a310 | 1788 | if (!host_char_to_target (gdbarch, c, &target_char)) |
6c7a06a3 TT |
1789 | error |
1790 | ("The escape sequence `\%c' is equivalent to plain `%c', which" | |
1791 | " has no equivalent\n" "in the `%s' character set.", c, c, | |
f870a310 | 1792 | target_charset (gdbarch)); |
6c7a06a3 | 1793 | return target_char; |
c906108c SS |
1794 | } |
1795 | \f | |
1796 | /* Print the character C on STREAM as part of the contents of a literal | |
1797 | string whose delimiter is QUOTER. Note that this routine should only | |
1798 | be call for printing things which are independent of the language | |
1799 | of the program being debugged. */ | |
1800 | ||
43e526b9 | 1801 | static void |
74f832da | 1802 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
bee0189a DJ |
1803 | void (*do_fprintf) (struct ui_file *, const char *, ...) |
1804 | ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter) | |
c906108c | 1805 | { |
c906108c SS |
1806 | c &= 0xFF; /* Avoid sign bit follies */ |
1807 | ||
c5aa993b JM |
1808 | if (c < 0x20 || /* Low control chars */ |
1809 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1810 | (sevenbit_strings && c >= 0x80)) | |
1811 | { /* high order bit set */ | |
1812 | switch (c) | |
1813 | { | |
1814 | case '\n': | |
43e526b9 | 1815 | do_fputs ("\\n", stream); |
c5aa993b JM |
1816 | break; |
1817 | case '\b': | |
43e526b9 | 1818 | do_fputs ("\\b", stream); |
c5aa993b JM |
1819 | break; |
1820 | case '\t': | |
43e526b9 | 1821 | do_fputs ("\\t", stream); |
c5aa993b JM |
1822 | break; |
1823 | case '\f': | |
43e526b9 | 1824 | do_fputs ("\\f", stream); |
c5aa993b JM |
1825 | break; |
1826 | case '\r': | |
43e526b9 | 1827 | do_fputs ("\\r", stream); |
c5aa993b JM |
1828 | break; |
1829 | case '\033': | |
43e526b9 | 1830 | do_fputs ("\\e", stream); |
c5aa993b JM |
1831 | break; |
1832 | case '\007': | |
43e526b9 | 1833 | do_fputs ("\\a", stream); |
c5aa993b JM |
1834 | break; |
1835 | default: | |
43e526b9 | 1836 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1837 | break; |
1838 | } | |
1839 | } | |
1840 | else | |
1841 | { | |
1842 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1843 | do_fputs ("\\", stream); |
1844 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1845 | } |
c906108c | 1846 | } |
43e526b9 JM |
1847 | |
1848 | /* Print the character C on STREAM as part of the contents of a | |
1849 | literal string whose delimiter is QUOTER. Note that these routines | |
1850 | should only be call for printing things which are independent of | |
1851 | the language of the program being debugged. */ | |
1852 | ||
1853 | void | |
fba45db2 | 1854 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1855 | { |
1856 | while (*str) | |
1857 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1858 | } | |
1859 | ||
1860 | void | |
fba45db2 | 1861 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1862 | { |
1863 | while (*str) | |
1864 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1865 | } | |
1866 | ||
0876f84a DJ |
1867 | void |
1868 | fputstrn_filtered (const char *str, int n, int quoter, | |
1869 | struct ui_file *stream) | |
1870 | { | |
1871 | int i; | |
e0627e85 | 1872 | |
0876f84a DJ |
1873 | for (i = 0; i < n; i++) |
1874 | printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter); | |
1875 | } | |
1876 | ||
43e526b9 | 1877 | void |
8731e58e AC |
1878 | fputstrn_unfiltered (const char *str, int n, int quoter, |
1879 | struct ui_file *stream) | |
43e526b9 JM |
1880 | { |
1881 | int i; | |
5d502164 | 1882 | |
43e526b9 JM |
1883 | for (i = 0; i < n; i++) |
1884 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1885 | } | |
c906108c | 1886 | \f |
c5aa993b | 1887 | |
c906108c SS |
1888 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1889 | static unsigned int lines_per_page; | |
920d2a44 AC |
1890 | static void |
1891 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1892 | struct cmd_list_element *c, const char *value) | |
1893 | { | |
1894 | fprintf_filtered (file, _("\ | |
1895 | Number of lines gdb thinks are in a page is %s.\n"), | |
1896 | value); | |
1897 | } | |
eb0d3137 | 1898 | |
cbfbd72a | 1899 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1900 | static unsigned int chars_per_line; |
920d2a44 AC |
1901 | static void |
1902 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1903 | struct cmd_list_element *c, const char *value) | |
1904 | { | |
1905 | fprintf_filtered (file, _("\ | |
1906 | Number of characters gdb thinks are in a line is %s.\n"), | |
1907 | value); | |
1908 | } | |
eb0d3137 | 1909 | |
c906108c SS |
1910 | /* Current count of lines printed on this page, chars on this line. */ |
1911 | static unsigned int lines_printed, chars_printed; | |
1912 | ||
1913 | /* Buffer and start column of buffered text, for doing smarter word- | |
1914 | wrapping. When someone calls wrap_here(), we start buffering output | |
1915 | that comes through fputs_filtered(). If we see a newline, we just | |
1916 | spit it out and forget about the wrap_here(). If we see another | |
1917 | wrap_here(), we spit it out and remember the newer one. If we see | |
1918 | the end of the line, we spit out a newline, the indent, and then | |
1919 | the buffered output. */ | |
1920 | ||
1921 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1922 | are waiting to be output (they have already been counted in chars_printed). | |
1923 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1924 | static char *wrap_buffer; | |
1925 | ||
1926 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1927 | static char *wrap_pointer; | |
1928 | ||
1929 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1930 | is non-zero. */ | |
1931 | static char *wrap_indent; | |
1932 | ||
1933 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1934 | is not in effect. */ | |
1935 | static int wrap_column; | |
c906108c | 1936 | \f |
c5aa993b | 1937 | |
eb0d3137 MK |
1938 | /* Inialize the number of lines per page and chars per line. */ |
1939 | ||
c906108c | 1940 | void |
fba45db2 | 1941 | init_page_info (void) |
c906108c SS |
1942 | { |
1943 | #if defined(TUI) | |
5ecb1806 | 1944 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1945 | #endif |
1946 | { | |
eb0d3137 | 1947 | int rows, cols; |
c906108c | 1948 | |
ec145965 EZ |
1949 | #if defined(__GO32__) |
1950 | rows = ScreenRows (); | |
1951 | cols = ScreenCols (); | |
1952 | lines_per_page = rows; | |
1953 | chars_per_line = cols; | |
1954 | #else | |
eb0d3137 MK |
1955 | /* Make sure Readline has initialized its terminal settings. */ |
1956 | rl_reset_terminal (NULL); | |
c906108c | 1957 | |
eb0d3137 MK |
1958 | /* Get the screen size from Readline. */ |
1959 | rl_get_screen_size (&rows, &cols); | |
1960 | lines_per_page = rows; | |
1961 | chars_per_line = cols; | |
c906108c | 1962 | |
eb0d3137 MK |
1963 | /* Readline should have fetched the termcap entry for us. */ |
1964 | if (tgetnum ("li") < 0 || getenv ("EMACS")) | |
1965 | { | |
1966 | /* The number of lines per page is not mentioned in the | |
1967 | terminal description. This probably means that paging is | |
1968 | not useful (e.g. emacs shell window), so disable paging. */ | |
1969 | lines_per_page = UINT_MAX; | |
1970 | } | |
c906108c | 1971 | |
eb0d3137 | 1972 | /* FIXME: Get rid of this junk. */ |
c906108c | 1973 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) |
c906108c SS |
1974 | SIGWINCH_HANDLER (SIGWINCH); |
1975 | #endif | |
eb0d3137 | 1976 | |
c906108c | 1977 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1978 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1979 | lines_per_page = UINT_MAX; |
eb0d3137 | 1980 | #endif |
ec145965 | 1981 | } |
eb0d3137 MK |
1982 | |
1983 | set_screen_size (); | |
c5aa993b | 1984 | set_width (); |
c906108c SS |
1985 | } |
1986 | ||
eb0d3137 MK |
1987 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1988 | ||
1989 | static void | |
1990 | set_screen_size (void) | |
1991 | { | |
1992 | int rows = lines_per_page; | |
1993 | int cols = chars_per_line; | |
1994 | ||
1995 | if (rows <= 0) | |
1996 | rows = INT_MAX; | |
1997 | ||
1998 | if (cols <= 0) | |
0caa462c | 1999 | cols = INT_MAX; |
eb0d3137 MK |
2000 | |
2001 | /* Update Readline's idea of the terminal size. */ | |
2002 | rl_set_screen_size (rows, cols); | |
2003 | } | |
2004 | ||
2005 | /* Reinitialize WRAP_BUFFER according to the current value of | |
2006 | CHARS_PER_LINE. */ | |
2007 | ||
c906108c | 2008 | static void |
fba45db2 | 2009 | set_width (void) |
c906108c SS |
2010 | { |
2011 | if (chars_per_line == 0) | |
c5aa993b | 2012 | init_page_info (); |
c906108c SS |
2013 | |
2014 | if (!wrap_buffer) | |
2015 | { | |
2016 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
2017 | wrap_buffer[0] = '\0'; | |
2018 | } | |
2019 | else | |
2020 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 2021 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
2022 | } |
2023 | ||
c5aa993b | 2024 | static void |
fba45db2 | 2025 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 2026 | { |
eb0d3137 | 2027 | set_screen_size (); |
c906108c SS |
2028 | set_width (); |
2029 | } | |
2030 | ||
eb0d3137 MK |
2031 | static void |
2032 | set_height_command (char *args, int from_tty, struct cmd_list_element *c) | |
2033 | { | |
2034 | set_screen_size (); | |
2035 | } | |
2036 | ||
c906108c SS |
2037 | /* Wait, so the user can read what's on the screen. Prompt the user |
2038 | to continue by pressing RETURN. */ | |
2039 | ||
2040 | static void | |
fba45db2 | 2041 | prompt_for_continue (void) |
c906108c SS |
2042 | { |
2043 | char *ignore; | |
2044 | char cont_prompt[120]; | |
2045 | ||
2046 | if (annotation_level > 1) | |
a3f17187 | 2047 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
2048 | |
2049 | strcpy (cont_prompt, | |
2050 | "---Type <return> to continue, or q <return> to quit---"); | |
2051 | if (annotation_level > 1) | |
2052 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
2053 | ||
2054 | /* We must do this *before* we call gdb_readline, else it will eventually | |
2055 | call us -- thinking that we're trying to print beyond the end of the | |
2056 | screen. */ | |
2057 | reinitialize_more_filter (); | |
2058 | ||
2059 | immediate_quit++; | |
2060 | /* On a real operating system, the user can quit with SIGINT. | |
2061 | But not on GO32. | |
2062 | ||
2063 | 'q' is provided on all systems so users don't have to change habits | |
2064 | from system to system, and because telling them what to do in | |
2065 | the prompt is more user-friendly than expecting them to think of | |
2066 | SIGINT. */ | |
2067 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
2068 | whereas control-C to gdb_readline will cause the user to get dumped | |
2069 | out to DOS. */ | |
b4f5539f | 2070 | ignore = gdb_readline_wrapper (cont_prompt); |
c906108c SS |
2071 | |
2072 | if (annotation_level > 1) | |
a3f17187 | 2073 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c SS |
2074 | |
2075 | if (ignore) | |
2076 | { | |
2077 | char *p = ignore; | |
5d502164 | 2078 | |
c906108c SS |
2079 | while (*p == ' ' || *p == '\t') |
2080 | ++p; | |
2081 | if (p[0] == 'q') | |
362646f5 | 2082 | async_request_quit (0); |
b8c9b27d | 2083 | xfree (ignore); |
c906108c SS |
2084 | } |
2085 | immediate_quit--; | |
2086 | ||
2087 | /* Now we have to do this again, so that GDB will know that it doesn't | |
2088 | need to save the ---Type <return>--- line at the top of the screen. */ | |
2089 | reinitialize_more_filter (); | |
2090 | ||
2091 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ | |
2092 | } | |
2093 | ||
2094 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
2095 | ||
2096 | void | |
fba45db2 | 2097 | reinitialize_more_filter (void) |
c906108c SS |
2098 | { |
2099 | lines_printed = 0; | |
2100 | chars_printed = 0; | |
2101 | } | |
2102 | ||
2103 | /* Indicate that if the next sequence of characters overflows the line, | |
2104 | a newline should be inserted here rather than when it hits the end. | |
2105 | If INDENT is non-null, it is a string to be printed to indent the | |
2106 | wrapped part on the next line. INDENT must remain accessible until | |
2107 | the next call to wrap_here() or until a newline is printed through | |
2108 | fputs_filtered(). | |
2109 | ||
2110 | If the line is already overfull, we immediately print a newline and | |
2111 | the indentation, and disable further wrapping. | |
2112 | ||
2113 | If we don't know the width of lines, but we know the page height, | |
2114 | we must not wrap words, but should still keep track of newlines | |
2115 | that were explicitly printed. | |
2116 | ||
2117 | INDENT should not contain tabs, as that will mess up the char count | |
2118 | on the next line. FIXME. | |
2119 | ||
2120 | This routine is guaranteed to force out any output which has been | |
2121 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
2122 | used to force out output from the wrap_buffer. */ | |
2123 | ||
2124 | void | |
fba45db2 | 2125 | wrap_here (char *indent) |
c906108c SS |
2126 | { |
2127 | /* This should have been allocated, but be paranoid anyway. */ | |
2128 | if (!wrap_buffer) | |
e2e0b3e5 | 2129 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
2130 | |
2131 | if (wrap_buffer[0]) | |
2132 | { | |
2133 | *wrap_pointer = '\0'; | |
2134 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
2135 | } | |
2136 | wrap_pointer = wrap_buffer; | |
2137 | wrap_buffer[0] = '\0'; | |
c5aa993b | 2138 | if (chars_per_line == UINT_MAX) /* No line overflow checking */ |
c906108c SS |
2139 | { |
2140 | wrap_column = 0; | |
2141 | } | |
2142 | else if (chars_printed >= chars_per_line) | |
2143 | { | |
2144 | puts_filtered ("\n"); | |
2145 | if (indent != NULL) | |
2146 | puts_filtered (indent); | |
2147 | wrap_column = 0; | |
2148 | } | |
2149 | else | |
2150 | { | |
2151 | wrap_column = chars_printed; | |
2152 | if (indent == NULL) | |
2153 | wrap_indent = ""; | |
2154 | else | |
2155 | wrap_indent = indent; | |
2156 | } | |
2157 | } | |
2158 | ||
4a351cef AF |
2159 | /* Print input string to gdb_stdout, filtered, with wrap, |
2160 | arranging strings in columns of n chars. String can be | |
2161 | right or left justified in the column. Never prints | |
2162 | trailing spaces. String should never be longer than | |
2163 | width. FIXME: this could be useful for the EXAMINE | |
2164 | command, which currently doesn't tabulate very well */ | |
2165 | ||
2166 | void | |
2167 | puts_filtered_tabular (char *string, int width, int right) | |
2168 | { | |
2169 | int spaces = 0; | |
2170 | int stringlen; | |
2171 | char *spacebuf; | |
2172 | ||
2173 | gdb_assert (chars_per_line > 0); | |
2174 | if (chars_per_line == UINT_MAX) | |
2175 | { | |
2176 | fputs_filtered (string, gdb_stdout); | |
2177 | fputs_filtered ("\n", gdb_stdout); | |
2178 | return; | |
2179 | } | |
2180 | ||
2181 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
2182 | fputs_filtered ("\n", gdb_stdout); | |
2183 | ||
2184 | if (width >= chars_per_line) | |
2185 | width = chars_per_line - 1; | |
2186 | ||
2187 | stringlen = strlen (string); | |
2188 | ||
2189 | if (chars_printed > 0) | |
2190 | spaces = width - (chars_printed - 1) % width - 1; | |
2191 | if (right) | |
2192 | spaces += width - stringlen; | |
2193 | ||
2194 | spacebuf = alloca (spaces + 1); | |
2195 | spacebuf[spaces] = '\0'; | |
2196 | while (spaces--) | |
2197 | spacebuf[spaces] = ' '; | |
2198 | ||
2199 | fputs_filtered (spacebuf, gdb_stdout); | |
2200 | fputs_filtered (string, gdb_stdout); | |
2201 | } | |
2202 | ||
2203 | ||
c906108c SS |
2204 | /* Ensure that whatever gets printed next, using the filtered output |
2205 | commands, starts at the beginning of the line. I.E. if there is | |
2206 | any pending output for the current line, flush it and start a new | |
2207 | line. Otherwise do nothing. */ | |
2208 | ||
2209 | void | |
fba45db2 | 2210 | begin_line (void) |
c906108c SS |
2211 | { |
2212 | if (chars_printed > 0) | |
2213 | { | |
2214 | puts_filtered ("\n"); | |
2215 | } | |
2216 | } | |
2217 | ||
ac9a91a7 | 2218 | |
c906108c SS |
2219 | /* Like fputs but if FILTER is true, pause after every screenful. |
2220 | ||
2221 | Regardless of FILTER can wrap at points other than the final | |
2222 | character of a line. | |
2223 | ||
2224 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
2225 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
2226 | anything. | |
2227 | ||
2228 | Note that a longjmp to top level may occur in this routine (only if | |
2229 | FILTER is true) (since prompt_for_continue may do so) so this | |
2230 | routine should not be called when cleanups are not in place. */ | |
2231 | ||
2232 | static void | |
fba45db2 KB |
2233 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
2234 | int filter) | |
c906108c SS |
2235 | { |
2236 | const char *lineptr; | |
2237 | ||
2238 | if (linebuffer == 0) | |
2239 | return; | |
2240 | ||
2241 | /* Don't do any filtering if it is disabled. */ | |
390a8aca PA |
2242 | if (stream != gdb_stdout |
2243 | || !pagination_enabled | |
2244 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) | |
58dadb1b | 2245 | || top_level_interpreter () == NULL |
390a8aca | 2246 | || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) |
c906108c SS |
2247 | { |
2248 | fputs_unfiltered (linebuffer, stream); | |
2249 | return; | |
2250 | } | |
2251 | ||
2252 | /* Go through and output each character. Show line extension | |
2253 | when this is necessary; prompt user for new page when this is | |
2254 | necessary. */ | |
c5aa993b | 2255 | |
c906108c SS |
2256 | lineptr = linebuffer; |
2257 | while (*lineptr) | |
2258 | { | |
2259 | /* Possible new page. */ | |
8731e58e | 2260 | if (filter && (lines_printed >= lines_per_page - 1)) |
c906108c SS |
2261 | prompt_for_continue (); |
2262 | ||
2263 | while (*lineptr && *lineptr != '\n') | |
2264 | { | |
2265 | /* Print a single line. */ | |
2266 | if (*lineptr == '\t') | |
2267 | { | |
2268 | if (wrap_column) | |
2269 | *wrap_pointer++ = '\t'; | |
2270 | else | |
2271 | fputc_unfiltered ('\t', stream); | |
2272 | /* Shifting right by 3 produces the number of tab stops | |
2273 | we have already passed, and then adding one and | |
c5aa993b | 2274 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
2275 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
2276 | lineptr++; | |
2277 | } | |
2278 | else | |
2279 | { | |
2280 | if (wrap_column) | |
2281 | *wrap_pointer++ = *lineptr; | |
2282 | else | |
c5aa993b | 2283 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
2284 | chars_printed++; |
2285 | lineptr++; | |
2286 | } | |
c5aa993b | 2287 | |
c906108c SS |
2288 | if (chars_printed >= chars_per_line) |
2289 | { | |
2290 | unsigned int save_chars = chars_printed; | |
2291 | ||
2292 | chars_printed = 0; | |
2293 | lines_printed++; | |
2294 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
2295 | if chars_per_line is right, we probably just overflowed |
2296 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
2297 | if (wrap_column) |
2298 | fputc_unfiltered ('\n', stream); | |
2299 | ||
2300 | /* Possible new page. */ | |
2301 | if (lines_printed >= lines_per_page - 1) | |
2302 | prompt_for_continue (); | |
2303 | ||
2304 | /* Now output indentation and wrapped string */ | |
2305 | if (wrap_column) | |
2306 | { | |
2307 | fputs_unfiltered (wrap_indent, stream); | |
8731e58e | 2308 | *wrap_pointer = '\0'; /* Null-terminate saved stuff */ |
c5aa993b | 2309 | fputs_unfiltered (wrap_buffer, stream); /* and eject it */ |
c906108c SS |
2310 | /* FIXME, this strlen is what prevents wrap_indent from |
2311 | containing tabs. However, if we recurse to print it | |
2312 | and count its chars, we risk trouble if wrap_indent is | |
2313 | longer than (the user settable) chars_per_line. | |
2314 | Note also that this can set chars_printed > chars_per_line | |
2315 | if we are printing a long string. */ | |
2316 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 2317 | + (save_chars - wrap_column); |
c906108c SS |
2318 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
2319 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
2320 | wrap_column = 0; /* And disable fancy wrap */ |
2321 | } | |
c906108c SS |
2322 | } |
2323 | } | |
2324 | ||
2325 | if (*lineptr == '\n') | |
2326 | { | |
2327 | chars_printed = 0; | |
c5aa993b | 2328 | wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */ |
c906108c SS |
2329 | lines_printed++; |
2330 | fputc_unfiltered ('\n', stream); | |
2331 | lineptr++; | |
2332 | } | |
2333 | } | |
2334 | } | |
2335 | ||
2336 | void | |
fba45db2 | 2337 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
2338 | { |
2339 | fputs_maybe_filtered (linebuffer, stream, 1); | |
2340 | } | |
2341 | ||
2342 | int | |
fba45db2 | 2343 | putchar_unfiltered (int c) |
c906108c | 2344 | { |
11cf8741 | 2345 | char buf = c; |
e0627e85 | 2346 | |
d9fcf2fb | 2347 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
2348 | return c; |
2349 | } | |
2350 | ||
d1f4cff8 AC |
2351 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
2352 | May return nonlocally. */ | |
2353 | ||
2354 | int | |
2355 | putchar_filtered (int c) | |
2356 | { | |
2357 | return fputc_filtered (c, gdb_stdout); | |
2358 | } | |
2359 | ||
c906108c | 2360 | int |
fba45db2 | 2361 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 2362 | { |
11cf8741 | 2363 | char buf = c; |
e0627e85 | 2364 | |
d9fcf2fb | 2365 | ui_file_write (stream, &buf, 1); |
c906108c SS |
2366 | return c; |
2367 | } | |
2368 | ||
2369 | int | |
fba45db2 | 2370 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
2371 | { |
2372 | char buf[2]; | |
2373 | ||
2374 | buf[0] = c; | |
2375 | buf[1] = 0; | |
2376 | fputs_filtered (buf, stream); | |
2377 | return c; | |
2378 | } | |
2379 | ||
2380 | /* puts_debug is like fputs_unfiltered, except it prints special | |
2381 | characters in printable fashion. */ | |
2382 | ||
2383 | void | |
fba45db2 | 2384 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
2385 | { |
2386 | int ch; | |
2387 | ||
2388 | /* Print prefix and suffix after each line. */ | |
2389 | static int new_line = 1; | |
2390 | static int return_p = 0; | |
2391 | static char *prev_prefix = ""; | |
2392 | static char *prev_suffix = ""; | |
2393 | ||
2394 | if (*string == '\n') | |
2395 | return_p = 0; | |
2396 | ||
2397 | /* If the prefix is changing, print the previous suffix, a new line, | |
2398 | and the new prefix. */ | |
c5aa993b | 2399 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2400 | { |
9846de1b JM |
2401 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2402 | fputs_unfiltered ("\n", gdb_stdlog); | |
2403 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2404 | } |
2405 | ||
2406 | /* Print prefix if we printed a newline during the previous call. */ | |
2407 | if (new_line) | |
2408 | { | |
2409 | new_line = 0; | |
9846de1b | 2410 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2411 | } |
2412 | ||
2413 | prev_prefix = prefix; | |
2414 | prev_suffix = suffix; | |
2415 | ||
2416 | /* Output characters in a printable format. */ | |
2417 | while ((ch = *string++) != '\0') | |
2418 | { | |
2419 | switch (ch) | |
c5aa993b | 2420 | { |
c906108c SS |
2421 | default: |
2422 | if (isprint (ch)) | |
9846de1b | 2423 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2424 | |
2425 | else | |
9846de1b | 2426 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2427 | break; |
2428 | ||
c5aa993b JM |
2429 | case '\\': |
2430 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2431 | break; | |
2432 | case '\b': | |
2433 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2434 | break; | |
2435 | case '\f': | |
2436 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2437 | break; | |
2438 | case '\n': | |
2439 | new_line = 1; | |
2440 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2441 | break; | |
2442 | case '\r': | |
2443 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2444 | break; | |
2445 | case '\t': | |
2446 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2447 | break; | |
2448 | case '\v': | |
2449 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2450 | break; | |
2451 | } | |
c906108c SS |
2452 | |
2453 | return_p = ch == '\r'; | |
2454 | } | |
2455 | ||
2456 | /* Print suffix if we printed a newline. */ | |
2457 | if (new_line) | |
2458 | { | |
9846de1b JM |
2459 | fputs_unfiltered (suffix, gdb_stdlog); |
2460 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2461 | } |
2462 | } | |
2463 | ||
2464 | ||
2465 | /* Print a variable number of ARGS using format FORMAT. If this | |
2466 | information is going to put the amount written (since the last call | |
2467 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2468 | call prompt_for_continue to get the users permision to continue. | |
2469 | ||
2470 | Unlike fprintf, this function does not return a value. | |
2471 | ||
2472 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2473 | fprintf (takes a stream to write on), and printf (the usual). | |
2474 | ||
2475 | Note also that a longjmp to top level may occur in this routine | |
2476 | (since prompt_for_continue may do so) so this routine should not be | |
2477 | called when cleanups are not in place. */ | |
2478 | ||
2479 | static void | |
fba45db2 KB |
2480 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2481 | va_list args, int filter) | |
c906108c SS |
2482 | { |
2483 | char *linebuffer; | |
2484 | struct cleanup *old_cleanups; | |
2485 | ||
e623b504 | 2486 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2487 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2488 | fputs_maybe_filtered (linebuffer, stream, filter); |
2489 | do_cleanups (old_cleanups); | |
2490 | } | |
2491 | ||
2492 | ||
2493 | void | |
fba45db2 | 2494 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2495 | { |
2496 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2497 | } | |
2498 | ||
2499 | void | |
fba45db2 | 2500 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2501 | { |
2502 | char *linebuffer; | |
2503 | struct cleanup *old_cleanups; | |
2504 | ||
e623b504 | 2505 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2506 | old_cleanups = make_cleanup (xfree, linebuffer); |
75feb17d DJ |
2507 | if (debug_timestamp && stream == gdb_stdlog) |
2508 | { | |
2509 | struct timeval tm; | |
2510 | char *timestamp; | |
6e5abd65 | 2511 | int len, need_nl; |
75feb17d DJ |
2512 | |
2513 | gettimeofday (&tm, NULL); | |
6e5abd65 PA |
2514 | |
2515 | len = strlen (linebuffer); | |
2516 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); | |
2517 | ||
2518 | timestamp = xstrprintf ("%ld:%ld %s%s", | |
2519 | (long) tm.tv_sec, (long) tm.tv_usec, | |
2520 | linebuffer, | |
2521 | need_nl ? "\n": ""); | |
75feb17d DJ |
2522 | make_cleanup (xfree, timestamp); |
2523 | fputs_unfiltered (timestamp, stream); | |
2524 | } | |
6e5abd65 PA |
2525 | else |
2526 | fputs_unfiltered (linebuffer, stream); | |
c906108c SS |
2527 | do_cleanups (old_cleanups); |
2528 | } | |
2529 | ||
2530 | void | |
fba45db2 | 2531 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2532 | { |
2533 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2534 | } | |
2535 | ||
2536 | void | |
fba45db2 | 2537 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2538 | { |
2539 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2540 | } | |
2541 | ||
c906108c | 2542 | void |
8731e58e | 2543 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2544 | { |
2545 | va_list args; | |
e0627e85 | 2546 | |
c906108c | 2547 | va_start (args, format); |
c906108c SS |
2548 | vfprintf_filtered (stream, format, args); |
2549 | va_end (args); | |
2550 | } | |
2551 | ||
c906108c | 2552 | void |
8731e58e | 2553 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2554 | { |
2555 | va_list args; | |
e0627e85 | 2556 | |
c906108c | 2557 | va_start (args, format); |
c906108c SS |
2558 | vfprintf_unfiltered (stream, format, args); |
2559 | va_end (args); | |
2560 | } | |
2561 | ||
2562 | /* Like fprintf_filtered, but prints its result indented. | |
2563 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2564 | ||
c906108c | 2565 | void |
8731e58e AC |
2566 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2567 | ...) | |
c906108c SS |
2568 | { |
2569 | va_list args; | |
e0627e85 | 2570 | |
c906108c | 2571 | va_start (args, format); |
c906108c SS |
2572 | print_spaces_filtered (spaces, stream); |
2573 | ||
2574 | vfprintf_filtered (stream, format, args); | |
2575 | va_end (args); | |
2576 | } | |
2577 | ||
2578 | ||
c906108c | 2579 | void |
8731e58e | 2580 | printf_filtered (const char *format, ...) |
c906108c SS |
2581 | { |
2582 | va_list args; | |
e0627e85 | 2583 | |
c906108c | 2584 | va_start (args, format); |
c906108c SS |
2585 | vfprintf_filtered (gdb_stdout, format, args); |
2586 | va_end (args); | |
2587 | } | |
2588 | ||
2589 | ||
c906108c | 2590 | void |
8731e58e | 2591 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2592 | { |
2593 | va_list args; | |
e0627e85 | 2594 | |
c906108c | 2595 | va_start (args, format); |
c906108c SS |
2596 | vfprintf_unfiltered (gdb_stdout, format, args); |
2597 | va_end (args); | |
2598 | } | |
2599 | ||
2600 | /* Like printf_filtered, but prints it's result indented. | |
2601 | Called as printfi_filtered (spaces, format, ...); */ | |
2602 | ||
c906108c | 2603 | void |
8731e58e | 2604 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2605 | { |
2606 | va_list args; | |
e0627e85 | 2607 | |
c906108c | 2608 | va_start (args, format); |
c906108c SS |
2609 | print_spaces_filtered (spaces, gdb_stdout); |
2610 | vfprintf_filtered (gdb_stdout, format, args); | |
2611 | va_end (args); | |
2612 | } | |
2613 | ||
2614 | /* Easy -- but watch out! | |
2615 | ||
2616 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2617 | This one doesn't, and had better not! */ | |
2618 | ||
2619 | void | |
fba45db2 | 2620 | puts_filtered (const char *string) |
c906108c SS |
2621 | { |
2622 | fputs_filtered (string, gdb_stdout); | |
2623 | } | |
2624 | ||
2625 | void | |
fba45db2 | 2626 | puts_unfiltered (const char *string) |
c906108c SS |
2627 | { |
2628 | fputs_unfiltered (string, gdb_stdout); | |
2629 | } | |
2630 | ||
2631 | /* Return a pointer to N spaces and a null. The pointer is good | |
2632 | until the next call to here. */ | |
2633 | char * | |
fba45db2 | 2634 | n_spaces (int n) |
c906108c | 2635 | { |
392a587b JM |
2636 | char *t; |
2637 | static char *spaces = 0; | |
2638 | static int max_spaces = -1; | |
c906108c SS |
2639 | |
2640 | if (n > max_spaces) | |
2641 | { | |
2642 | if (spaces) | |
b8c9b27d | 2643 | xfree (spaces); |
c5aa993b JM |
2644 | spaces = (char *) xmalloc (n + 1); |
2645 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2646 | *--t = ' '; |
2647 | spaces[n] = '\0'; | |
2648 | max_spaces = n; | |
2649 | } | |
2650 | ||
2651 | return spaces + max_spaces - n; | |
2652 | } | |
2653 | ||
2654 | /* Print N spaces. */ | |
2655 | void | |
fba45db2 | 2656 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2657 | { |
2658 | fputs_filtered (n_spaces (n), stream); | |
2659 | } | |
2660 | \f | |
4a351cef | 2661 | /* C++/ObjC demangler stuff. */ |
c906108c | 2662 | |
389e51db AC |
2663 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2664 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2665 | If the name is not mangled, or the language for the name is unknown, or | |
2666 | demangling is off, the name is printed in its "raw" form. */ | |
c906108c SS |
2667 | |
2668 | void | |
8731e58e AC |
2669 | fprintf_symbol_filtered (struct ui_file *stream, char *name, |
2670 | enum language lang, int arg_mode) | |
c906108c SS |
2671 | { |
2672 | char *demangled; | |
2673 | ||
2674 | if (name != NULL) | |
2675 | { | |
2676 | /* If user wants to see raw output, no problem. */ | |
2677 | if (!demangle) | |
2678 | { | |
2679 | fputs_filtered (name, stream); | |
2680 | } | |
2681 | else | |
2682 | { | |
9a3d7dfd | 2683 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2684 | fputs_filtered (demangled ? demangled : name, stream); |
2685 | if (demangled != NULL) | |
2686 | { | |
b8c9b27d | 2687 | xfree (demangled); |
c906108c SS |
2688 | } |
2689 | } | |
2690 | } | |
2691 | } | |
2692 | ||
2693 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2694 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2695 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2696 | |
c906108c SS |
2697 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2698 | This "feature" is useful when searching for matching C++ function names | |
2699 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
2700 | function). */ | |
2701 | ||
2702 | int | |
fba45db2 | 2703 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2704 | { |
2705 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2706 | { | |
2707 | while (isspace (*string1)) | |
2708 | { | |
2709 | string1++; | |
2710 | } | |
2711 | while (isspace (*string2)) | |
2712 | { | |
2713 | string2++; | |
2714 | } | |
2715 | if (*string1 != *string2) | |
2716 | { | |
2717 | break; | |
2718 | } | |
2719 | if (*string1 != '\0') | |
2720 | { | |
2721 | string1++; | |
2722 | string2++; | |
2723 | } | |
2724 | } | |
2725 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2726 | } | |
2de7ced7 | 2727 | |
0fe19209 DC |
2728 | /* This is like strcmp except that it ignores whitespace and treats |
2729 | '(' as the first non-NULL character in terms of ordering. Like | |
2730 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2731 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2732 | according to that ordering. | |
2733 | ||
2734 | If a list is sorted according to this function and if you want to | |
2735 | find names in the list that match some fixed NAME according to | |
2736 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2737 | where this function would put NAME. | |
2738 | ||
2739 | Here are some examples of why using strcmp to sort is a bad idea: | |
2740 | ||
2741 | Whitespace example: | |
2742 | ||
2743 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2744 | we try to do a search for "foo<char*>", strcmp will locate this | |
2745 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2746 | will start looking at strings beginning with "goo", and will never | |
2747 | see the correct match of "foo<char *>". | |
2748 | ||
2749 | Parenthesis example: | |
2750 | ||
2751 | In practice, this is less like to be an issue, but I'll give it a | |
2752 | shot. Let's assume that '$' is a legitimate character to occur in | |
2753 | symbols. (Which may well even be the case on some systems.) Then | |
2754 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2755 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2756 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2757 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2758 | "foo") is false, so it won't proceed to the actual match of | |
2759 | "foo(int)" with "foo". */ | |
2760 | ||
2761 | int | |
2762 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2763 | { | |
2764 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2765 | { | |
2766 | while (isspace (*string1)) | |
2767 | { | |
2768 | string1++; | |
2769 | } | |
2770 | while (isspace (*string2)) | |
2771 | { | |
2772 | string2++; | |
2773 | } | |
2774 | if (*string1 != *string2) | |
2775 | { | |
2776 | break; | |
2777 | } | |
2778 | if (*string1 != '\0') | |
2779 | { | |
2780 | string1++; | |
2781 | string2++; | |
2782 | } | |
2783 | } | |
2784 | ||
2785 | switch (*string1) | |
2786 | { | |
2787 | /* Characters are non-equal unless they're both '\0'; we want to | |
2788 | make sure we get the comparison right according to our | |
2789 | comparison in the cases where one of them is '\0' or '('. */ | |
2790 | case '\0': | |
2791 | if (*string2 == '\0') | |
2792 | return 0; | |
2793 | else | |
2794 | return -1; | |
2795 | case '(': | |
2796 | if (*string2 == '\0') | |
2797 | return 1; | |
2798 | else | |
2799 | return -1; | |
2800 | default: | |
2801 | if (*string2 == '(') | |
2802 | return 1; | |
2803 | else | |
2804 | return *string1 - *string2; | |
2805 | } | |
2806 | } | |
2807 | ||
2de7ced7 DJ |
2808 | /* A simple comparison function with opposite semantics to strcmp. */ |
2809 | ||
2810 | int | |
2811 | streq (const char *lhs, const char *rhs) | |
2812 | { | |
2813 | return !strcmp (lhs, rhs); | |
2814 | } | |
c906108c | 2815 | \f |
c5aa993b | 2816 | |
c906108c | 2817 | /* |
c5aa993b JM |
2818 | ** subset_compare() |
2819 | ** Answer whether string_to_compare is a full or partial match to | |
2820 | ** template_string. The partial match must be in sequence starting | |
2821 | ** at index 0. | |
2822 | */ | |
c906108c | 2823 | int |
fba45db2 | 2824 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
2825 | { |
2826 | int match; | |
e0627e85 | 2827 | |
8731e58e AC |
2828 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
2829 | && strlen (string_to_compare) <= strlen (template_string)) | |
2830 | match = | |
2831 | (strncmp | |
2832 | (template_string, string_to_compare, strlen (string_to_compare)) == 0); | |
7a292a7a SS |
2833 | else |
2834 | match = 0; | |
2835 | return match; | |
2836 | } | |
c906108c | 2837 | |
7a292a7a | 2838 | static void |
fba45db2 | 2839 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
2840 | { |
2841 | pagination_enabled = 1; | |
2842 | } | |
2843 | ||
7a292a7a | 2844 | static void |
fba45db2 | 2845 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
2846 | { |
2847 | pagination_enabled = 0; | |
2848 | } | |
75feb17d DJ |
2849 | |
2850 | static void | |
2851 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
2852 | struct cmd_list_element *c, const char *value) | |
2853 | { | |
2854 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), value); | |
2855 | } | |
c906108c | 2856 | \f |
c5aa993b | 2857 | |
c906108c | 2858 | void |
fba45db2 | 2859 | initialize_utils (void) |
c906108c | 2860 | { |
35096d9d AC |
2861 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
2862 | Set number of characters gdb thinks are in a line."), _("\ | |
2863 | Show number of characters gdb thinks are in a line."), NULL, | |
2864 | set_width_command, | |
920d2a44 | 2865 | show_chars_per_line, |
35096d9d AC |
2866 | &setlist, &showlist); |
2867 | ||
2868 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
2869 | Set number of lines gdb thinks are in a page."), _("\ | |
2870 | Show number of lines gdb thinks are in a page."), NULL, | |
2871 | set_height_command, | |
920d2a44 | 2872 | show_lines_per_page, |
35096d9d | 2873 | &setlist, &showlist); |
c5aa993b | 2874 | |
c906108c SS |
2875 | init_page_info (); |
2876 | ||
5bf193a2 AC |
2877 | add_setshow_boolean_cmd ("demangle", class_support, &demangle, _("\ |
2878 | Set demangling of encoded C++/ObjC names when displaying symbols."), _("\ | |
2879 | Show demangling of encoded C++/ObjC names when displaying symbols."), NULL, | |
2880 | NULL, | |
920d2a44 | 2881 | show_demangle, |
5bf193a2 AC |
2882 | &setprintlist, &showprintlist); |
2883 | ||
2884 | add_setshow_boolean_cmd ("pagination", class_support, | |
2885 | &pagination_enabled, _("\ | |
2886 | Set state of pagination."), _("\ | |
2887 | Show state of pagination."), NULL, | |
2888 | NULL, | |
920d2a44 | 2889 | show_pagination_enabled, |
5bf193a2 | 2890 | &setlist, &showlist); |
4261bedc | 2891 | |
c906108c SS |
2892 | if (xdb_commands) |
2893 | { | |
c5aa993b | 2894 | add_com ("am", class_support, pagination_on_command, |
1bedd215 | 2895 | _("Enable pagination")); |
c5aa993b | 2896 | add_com ("sm", class_support, pagination_off_command, |
1bedd215 | 2897 | _("Disable pagination")); |
c906108c SS |
2898 | } |
2899 | ||
5bf193a2 AC |
2900 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, |
2901 | &sevenbit_strings, _("\ | |
2902 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
2903 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
2904 | NULL, | |
920d2a44 | 2905 | show_sevenbit_strings, |
5bf193a2 AC |
2906 | &setprintlist, &showprintlist); |
2907 | ||
2908 | add_setshow_boolean_cmd ("asm-demangle", class_support, &asm_demangle, _("\ | |
2909 | Set demangling of C++/ObjC names in disassembly listings."), _("\ | |
2910 | Show demangling of C++/ObjC names in disassembly listings."), NULL, | |
2911 | NULL, | |
920d2a44 | 2912 | show_asm_demangle, |
5bf193a2 | 2913 | &setprintlist, &showprintlist); |
75feb17d DJ |
2914 | |
2915 | add_setshow_boolean_cmd ("timestamp", class_maintenance, | |
2916 | &debug_timestamp, _("\ | |
2917 | Set timestamping of debugging messages."), _("\ | |
2918 | Show timestamping of debugging messages."), _("\ | |
2919 | When set, debugging messages will be marked with seconds and microseconds."), | |
2920 | NULL, | |
2921 | show_debug_timestamp, | |
2922 | &setdebuglist, &showdebuglist); | |
c906108c SS |
2923 | } |
2924 | ||
2925 | /* Machine specific function to handle SIGWINCH signal. */ | |
2926 | ||
2927 | #ifdef SIGWINCH_HANDLER_BODY | |
c5aa993b | 2928 | SIGWINCH_HANDLER_BODY |
c906108c | 2929 | #endif |
5683e87a | 2930 | /* print routines to handle variable size regs, etc. */ |
c906108c SS |
2931 | /* temporary storage using circular buffer */ |
2932 | #define NUMCELLS 16 | |
0759e0bf | 2933 | #define CELLSIZE 50 |
c5aa993b | 2934 | static char * |
fba45db2 | 2935 | get_cell (void) |
c906108c SS |
2936 | { |
2937 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b | 2938 | static int cell = 0; |
e0627e85 | 2939 | |
c5aa993b JM |
2940 | if (++cell >= NUMCELLS) |
2941 | cell = 0; | |
c906108c SS |
2942 | return buf[cell]; |
2943 | } | |
2944 | ||
66bf4b3a | 2945 | const char * |
5af949e3 | 2946 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
2947 | { |
2948 | /* Truncate address to the size of a target address, avoiding shifts | |
2949 | larger or equal than the width of a CORE_ADDR. The local | |
2950 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
2951 | when it won't occur. */ | |
2952 | /* NOTE: This assumes that the significant address information is | |
2953 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2954 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2955 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2956 | ||
5af949e3 | 2957 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
2958 | |
2959 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2960 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2961 | return hex_string (addr); | |
2962 | } | |
2963 | ||
8cf46f62 MK |
2964 | static char * |
2965 | decimal2str (char *sign, ULONGEST addr, int width) | |
104c1213 | 2966 | { |
8cf46f62 | 2967 | /* Steal code from valprint.c:print_decimal(). Should this worry |
104c1213 JM |
2968 | about the real size of addr as the above does? */ |
2969 | unsigned long temp[3]; | |
8cf46f62 | 2970 | char *str = get_cell (); |
104c1213 | 2971 | int i = 0; |
5d502164 | 2972 | |
104c1213 JM |
2973 | do |
2974 | { | |
2975 | temp[i] = addr % (1000 * 1000 * 1000); | |
2976 | addr /= (1000 * 1000 * 1000); | |
2977 | i++; | |
bb599908 | 2978 | width -= 9; |
104c1213 JM |
2979 | } |
2980 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 2981 | |
bb599908 PH |
2982 | width += 9; |
2983 | if (width < 0) | |
2984 | width = 0; | |
8cf46f62 | 2985 | |
104c1213 JM |
2986 | switch (i) |
2987 | { | |
2988 | case 1: | |
8cf46f62 | 2989 | xsnprintf (str, CELLSIZE, "%s%0*lu", sign, width, temp[0]); |
104c1213 JM |
2990 | break; |
2991 | case 2: | |
8cf46f62 MK |
2992 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu", sign, width, |
2993 | temp[1], temp[0]); | |
104c1213 JM |
2994 | break; |
2995 | case 3: | |
8cf46f62 MK |
2996 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu%09lu", sign, width, |
2997 | temp[2], temp[1], temp[0]); | |
bb599908 PH |
2998 | break; |
2999 | default: | |
3000 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3001 | _("failed internal consistency check")); |
bb599908 | 3002 | } |
8cf46f62 MK |
3003 | |
3004 | return str; | |
bb599908 PH |
3005 | } |
3006 | ||
8cf46f62 MK |
3007 | static char * |
3008 | octal2str (ULONGEST addr, int width) | |
bb599908 PH |
3009 | { |
3010 | unsigned long temp[3]; | |
8cf46f62 | 3011 | char *str = get_cell (); |
bb599908 | 3012 | int i = 0; |
5d502164 | 3013 | |
bb599908 PH |
3014 | do |
3015 | { | |
3016 | temp[i] = addr % (0100000 * 0100000); | |
3017 | addr /= (0100000 * 0100000); | |
3018 | i++; | |
3019 | width -= 10; | |
3020 | } | |
3021 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 3022 | |
bb599908 PH |
3023 | width += 10; |
3024 | if (width < 0) | |
3025 | width = 0; | |
8cf46f62 | 3026 | |
bb599908 PH |
3027 | switch (i) |
3028 | { | |
3029 | case 1: | |
3030 | if (temp[0] == 0) | |
8cf46f62 | 3031 | xsnprintf (str, CELLSIZE, "%*o", width, 0); |
bb599908 | 3032 | else |
8cf46f62 | 3033 | xsnprintf (str, CELLSIZE, "0%0*lo", width, temp[0]); |
bb599908 PH |
3034 | break; |
3035 | case 2: | |
8cf46f62 | 3036 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo", width, temp[1], temp[0]); |
bb599908 PH |
3037 | break; |
3038 | case 3: | |
8cf46f62 MK |
3039 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo%010lo", width, |
3040 | temp[2], temp[1], temp[0]); | |
104c1213 JM |
3041 | break; |
3042 | default: | |
8731e58e | 3043 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 3044 | _("failed internal consistency check")); |
104c1213 | 3045 | } |
8cf46f62 MK |
3046 | |
3047 | return str; | |
104c1213 JM |
3048 | } |
3049 | ||
3050 | char * | |
623d3eb1 | 3051 | pulongest (ULONGEST u) |
104c1213 | 3052 | { |
623d3eb1 | 3053 | return decimal2str ("", u, 0); |
104c1213 JM |
3054 | } |
3055 | ||
3056 | char * | |
623d3eb1 | 3057 | plongest (LONGEST l) |
104c1213 | 3058 | { |
623d3eb1 DE |
3059 | if (l < 0) |
3060 | return decimal2str ("-", -l, 0); | |
104c1213 | 3061 | else |
623d3eb1 | 3062 | return decimal2str ("", l, 0); |
104c1213 JM |
3063 | } |
3064 | ||
8cf46f62 | 3065 | /* Eliminate warning from compiler on 32-bit systems. */ |
5683e87a AC |
3066 | static int thirty_two = 32; |
3067 | ||
104c1213 | 3068 | char * |
5683e87a | 3069 | phex (ULONGEST l, int sizeof_l) |
104c1213 | 3070 | { |
45a1e866 | 3071 | char *str; |
8cf46f62 | 3072 | |
5683e87a | 3073 | switch (sizeof_l) |
104c1213 JM |
3074 | { |
3075 | case 8: | |
45a1e866 | 3076 | str = get_cell (); |
8cf46f62 MK |
3077 | xsnprintf (str, CELLSIZE, "%08lx%08lx", |
3078 | (unsigned long) (l >> thirty_two), | |
3079 | (unsigned long) (l & 0xffffffff)); | |
104c1213 JM |
3080 | break; |
3081 | case 4: | |
45a1e866 | 3082 | str = get_cell (); |
8cf46f62 | 3083 | xsnprintf (str, CELLSIZE, "%08lx", (unsigned long) l); |
104c1213 JM |
3084 | break; |
3085 | case 2: | |
45a1e866 | 3086 | str = get_cell (); |
8cf46f62 | 3087 | xsnprintf (str, CELLSIZE, "%04x", (unsigned short) (l & 0xffff)); |
104c1213 JM |
3088 | break; |
3089 | default: | |
45a1e866 | 3090 | str = phex (l, sizeof (l)); |
5683e87a | 3091 | break; |
104c1213 | 3092 | } |
8cf46f62 | 3093 | |
5683e87a | 3094 | return str; |
104c1213 JM |
3095 | } |
3096 | ||
c5aa993b | 3097 | char * |
5683e87a | 3098 | phex_nz (ULONGEST l, int sizeof_l) |
c906108c | 3099 | { |
faf833ca | 3100 | char *str; |
8cf46f62 | 3101 | |
5683e87a | 3102 | switch (sizeof_l) |
c906108c | 3103 | { |
c5aa993b JM |
3104 | case 8: |
3105 | { | |
5683e87a | 3106 | unsigned long high = (unsigned long) (l >> thirty_two); |
5d502164 | 3107 | |
faf833ca | 3108 | str = get_cell (); |
c5aa993b | 3109 | if (high == 0) |
8cf46f62 MK |
3110 | xsnprintf (str, CELLSIZE, "%lx", |
3111 | (unsigned long) (l & 0xffffffff)); | |
c5aa993b | 3112 | else |
8cf46f62 MK |
3113 | xsnprintf (str, CELLSIZE, "%lx%08lx", high, |
3114 | (unsigned long) (l & 0xffffffff)); | |
c906108c | 3115 | break; |
c5aa993b JM |
3116 | } |
3117 | case 4: | |
faf833ca | 3118 | str = get_cell (); |
8cf46f62 | 3119 | xsnprintf (str, CELLSIZE, "%lx", (unsigned long) l); |
c5aa993b JM |
3120 | break; |
3121 | case 2: | |
faf833ca | 3122 | str = get_cell (); |
8cf46f62 | 3123 | xsnprintf (str, CELLSIZE, "%x", (unsigned short) (l & 0xffff)); |
c5aa993b JM |
3124 | break; |
3125 | default: | |
faf833ca | 3126 | str = phex_nz (l, sizeof (l)); |
5683e87a | 3127 | break; |
c906108c | 3128 | } |
8cf46f62 | 3129 | |
5683e87a | 3130 | return str; |
c906108c | 3131 | } |
ac2e2ef7 | 3132 | |
0759e0bf AC |
3133 | /* Converts a LONGEST to a C-format hexadecimal literal and stores it |
3134 | in a static string. Returns a pointer to this string. */ | |
3135 | char * | |
3136 | hex_string (LONGEST num) | |
3137 | { | |
3138 | char *result = get_cell (); | |
e0627e85 | 3139 | |
8cf46f62 | 3140 | xsnprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num))); |
0759e0bf AC |
3141 | return result; |
3142 | } | |
3143 | ||
3144 | /* Converts a LONGEST number to a C-format hexadecimal literal and | |
3145 | stores it in a static string. Returns a pointer to this string | |
3146 | that is valid until the next call. The number is padded on the | |
3147 | left with 0s to at least WIDTH characters. */ | |
3148 | char * | |
3149 | hex_string_custom (LONGEST num, int width) | |
3150 | { | |
3151 | char *result = get_cell (); | |
3152 | char *result_end = result + CELLSIZE - 1; | |
3153 | const char *hex = phex_nz (num, sizeof (num)); | |
3154 | int hex_len = strlen (hex); | |
3155 | ||
3156 | if (hex_len > width) | |
3157 | width = hex_len; | |
3158 | if (width + 2 >= CELLSIZE) | |
3159 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3160 | _("hex_string_custom: insufficient space to store result")); |
0759e0bf AC |
3161 | |
3162 | strcpy (result_end - width - 2, "0x"); | |
3163 | memset (result_end - width, '0', width); | |
3164 | strcpy (result_end - hex_len, hex); | |
3165 | return result_end - width - 2; | |
3166 | } | |
ac2e2ef7 | 3167 | |
bb599908 PH |
3168 | /* Convert VAL to a numeral in the given radix. For |
3169 | * radix 10, IS_SIGNED may be true, indicating a signed quantity; | |
3170 | * otherwise VAL is interpreted as unsigned. If WIDTH is supplied, | |
3171 | * it is the minimum width (0-padded if needed). USE_C_FORMAT means | |
3172 | * to use C format in all cases. If it is false, then 'x' | |
3173 | * and 'o' formats do not include a prefix (0x or leading 0). */ | |
3174 | ||
3175 | char * | |
3176 | int_string (LONGEST val, int radix, int is_signed, int width, | |
3177 | int use_c_format) | |
3178 | { | |
3179 | switch (radix) | |
3180 | { | |
3181 | case 16: | |
3182 | { | |
3183 | char *result; | |
5d502164 | 3184 | |
bb599908 PH |
3185 | if (width == 0) |
3186 | result = hex_string (val); | |
3187 | else | |
3188 | result = hex_string_custom (val, width); | |
3189 | if (! use_c_format) | |
3190 | result += 2; | |
3191 | return result; | |
3192 | } | |
3193 | case 10: | |
3194 | { | |
bb599908 | 3195 | if (is_signed && val < 0) |
8cf46f62 | 3196 | return decimal2str ("-", -val, width); |
bb599908 | 3197 | else |
8cf46f62 | 3198 | return decimal2str ("", val, width); |
bb599908 PH |
3199 | } |
3200 | case 8: | |
3201 | { | |
8cf46f62 | 3202 | char *result = octal2str (val, width); |
5d502164 | 3203 | |
bb599908 PH |
3204 | if (use_c_format || val == 0) |
3205 | return result; | |
3206 | else | |
3207 | return result + 1; | |
3208 | } | |
3209 | default: | |
3210 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3211 | _("failed internal consistency check")); |
bb599908 PH |
3212 | } |
3213 | } | |
3214 | ||
03dd37c3 AC |
3215 | /* Convert a CORE_ADDR into a string. */ |
3216 | const char * | |
3217 | core_addr_to_string (const CORE_ADDR addr) | |
49b563f9 KS |
3218 | { |
3219 | char *str = get_cell (); | |
e0627e85 | 3220 | |
49b563f9 KS |
3221 | strcpy (str, "0x"); |
3222 | strcat (str, phex (addr, sizeof (addr))); | |
3223 | return str; | |
3224 | } | |
3225 | ||
3226 | const char * | |
3227 | core_addr_to_string_nz (const CORE_ADDR addr) | |
03dd37c3 AC |
3228 | { |
3229 | char *str = get_cell (); | |
e0627e85 | 3230 | |
03dd37c3 AC |
3231 | strcpy (str, "0x"); |
3232 | strcat (str, phex_nz (addr, sizeof (addr))); | |
3233 | return str; | |
3234 | } | |
3235 | ||
3236 | /* Convert a string back into a CORE_ADDR. */ | |
3237 | CORE_ADDR | |
3238 | string_to_core_addr (const char *my_string) | |
3239 | { | |
3240 | CORE_ADDR addr = 0; | |
9544c605 | 3241 | |
03dd37c3 AC |
3242 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
3243 | { | |
ced572fe | 3244 | /* Assume that it is in hex. */ |
03dd37c3 | 3245 | int i; |
5d502164 | 3246 | |
03dd37c3 AC |
3247 | for (i = 2; my_string[i] != '\0'; i++) |
3248 | { | |
3249 | if (isdigit (my_string[i])) | |
3250 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 3251 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
3252 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
3253 | else | |
63f06803 | 3254 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
3255 | } |
3256 | } | |
3257 | else | |
3258 | { | |
3259 | /* Assume that it is in decimal. */ | |
3260 | int i; | |
5d502164 | 3261 | |
03dd37c3 AC |
3262 | for (i = 0; my_string[i] != '\0'; i++) |
3263 | { | |
3264 | if (isdigit (my_string[i])) | |
3265 | addr = (my_string[i] - '0') + (addr * 10); | |
3266 | else | |
63f06803 | 3267 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
3268 | } |
3269 | } | |
9544c605 | 3270 | |
03dd37c3 AC |
3271 | return addr; |
3272 | } | |
58d370e0 | 3273 | |
17ea7499 CES |
3274 | const char * |
3275 | host_address_to_string (const void *addr) | |
3276 | { | |
3277 | char *str = get_cell (); | |
ea8992ce | 3278 | |
773698b5 | 3279 | xsnprintf (str, CELLSIZE, "0x%s", phex_nz ((uintptr_t) addr, sizeof (addr))); |
17ea7499 CES |
3280 | return str; |
3281 | } | |
3282 | ||
58d370e0 TT |
3283 | char * |
3284 | gdb_realpath (const char *filename) | |
3285 | { | |
70d35819 AC |
3286 | /* Method 1: The system has a compile time upper bound on a filename |
3287 | path. Use that and realpath() to canonicalize the name. This is | |
3288 | the most common case. Note that, if there isn't a compile time | |
3289 | upper bound, you want to avoid realpath() at all costs. */ | |
a4db0f07 | 3290 | #if defined(HAVE_REALPATH) |
70d35819 | 3291 | { |
a4db0f07 | 3292 | # if defined (PATH_MAX) |
70d35819 | 3293 | char buf[PATH_MAX]; |
a4db0f07 RH |
3294 | # define USE_REALPATH |
3295 | # elif defined (MAXPATHLEN) | |
70d35819 | 3296 | char buf[MAXPATHLEN]; |
a4db0f07 RH |
3297 | # define USE_REALPATH |
3298 | # endif | |
70d35819 | 3299 | # if defined (USE_REALPATH) |
82c0260e | 3300 | const char *rp = realpath (filename, buf); |
5d502164 | 3301 | |
70d35819 AC |
3302 | if (rp == NULL) |
3303 | rp = filename; | |
3304 | return xstrdup (rp); | |
70d35819 | 3305 | # endif |
6f88d630 | 3306 | } |
a4db0f07 RH |
3307 | #endif /* HAVE_REALPATH */ |
3308 | ||
70d35819 AC |
3309 | /* Method 2: The host system (i.e., GNU) has the function |
3310 | canonicalize_file_name() which malloc's a chunk of memory and | |
3311 | returns that, use that. */ | |
3312 | #if defined(HAVE_CANONICALIZE_FILE_NAME) | |
3313 | { | |
3314 | char *rp = canonicalize_file_name (filename); | |
5d502164 | 3315 | |
70d35819 AC |
3316 | if (rp == NULL) |
3317 | return xstrdup (filename); | |
3318 | else | |
3319 | return rp; | |
3320 | } | |
58d370e0 | 3321 | #endif |
70d35819 | 3322 | |
6411e720 AC |
3323 | /* FIXME: cagney/2002-11-13: |
3324 | ||
3325 | Method 2a: Use realpath() with a NULL buffer. Some systems, due | |
3326 | to the problems described in in method 3, have modified their | |
3327 | realpath() implementation so that it will allocate a buffer when | |
3328 | NULL is passed in. Before this can be used, though, some sort of | |
3329 | configure time test would need to be added. Otherwize the code | |
3330 | will likely core dump. */ | |
3331 | ||
70d35819 AC |
3332 | /* Method 3: Now we're getting desperate! The system doesn't have a |
3333 | compile time buffer size and no alternative function. Query the | |
3334 | OS, using pathconf(), for the buffer limit. Care is needed | |
3335 | though, some systems do not limit PATH_MAX (return -1 for | |
3336 | pathconf()) making it impossible to pass a correctly sized buffer | |
3337 | to realpath() (it could always overflow). On those systems, we | |
3338 | skip this. */ | |
3339 | #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA) | |
3340 | { | |
3341 | /* Find out the max path size. */ | |
3342 | long path_max = pathconf ("/", _PC_PATH_MAX); | |
5d502164 | 3343 | |
70d35819 AC |
3344 | if (path_max > 0) |
3345 | { | |
3346 | /* PATH_MAX is bounded. */ | |
3347 | char *buf = alloca (path_max); | |
3348 | char *rp = realpath (filename, buf); | |
5d502164 | 3349 | |
70d35819 AC |
3350 | return xstrdup (rp ? rp : filename); |
3351 | } | |
3352 | } | |
3353 | #endif | |
3354 | ||
3355 | /* This system is a lost cause, just dup the buffer. */ | |
3356 | return xstrdup (filename); | |
58d370e0 | 3357 | } |
303c8ebd JB |
3358 | |
3359 | /* Return a copy of FILENAME, with its directory prefix canonicalized | |
3360 | by gdb_realpath. */ | |
3361 | ||
3362 | char * | |
3363 | xfullpath (const char *filename) | |
3364 | { | |
3365 | const char *base_name = lbasename (filename); | |
3366 | char *dir_name; | |
3367 | char *real_path; | |
3368 | char *result; | |
3369 | ||
3370 | /* Extract the basename of filename, and return immediately | |
3371 | a copy of filename if it does not contain any directory prefix. */ | |
3372 | if (base_name == filename) | |
3373 | return xstrdup (filename); | |
3374 | ||
3375 | dir_name = alloca ((size_t) (base_name - filename + 2)); | |
3376 | /* Allocate enough space to store the dir_name + plus one extra | |
3377 | character sometimes needed under Windows (see below), and | |
3378 | then the closing \000 character */ | |
3379 | strncpy (dir_name, filename, base_name - filename); | |
3380 | dir_name[base_name - filename] = '\000'; | |
3381 | ||
3382 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3383 | /* We need to be careful when filename is of the form 'd:foo', which | |
3384 | is equivalent of d:./foo, which is totally different from d:/foo. */ | |
8731e58e | 3385 | if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':') |
303c8ebd JB |
3386 | { |
3387 | dir_name[2] = '.'; | |
3388 | dir_name[3] = '\000'; | |
3389 | } | |
3390 | #endif | |
3391 | ||
3392 | /* Canonicalize the directory prefix, and build the resulting | |
3393 | filename. If the dirname realpath already contains an ending | |
3394 | directory separator, avoid doubling it. */ | |
3395 | real_path = gdb_realpath (dir_name); | |
3396 | if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1])) | |
c4f7c687 | 3397 | result = concat (real_path, base_name, (char *) NULL); |
303c8ebd | 3398 | else |
c4f7c687 | 3399 | result = concat (real_path, SLASH_STRING, base_name, (char *) NULL); |
303c8ebd JB |
3400 | |
3401 | xfree (real_path); | |
3402 | return result; | |
3403 | } | |
5b5d99cf JB |
3404 | |
3405 | ||
3406 | /* This is the 32-bit CRC function used by the GNU separate debug | |
3407 | facility. An executable may contain a section named | |
3408 | .gnu_debuglink, which holds the name of a separate executable file | |
3409 | containing its debug info, and a checksum of that file's contents, | |
3410 | computed using this function. */ | |
3411 | unsigned long | |
3412 | gnu_debuglink_crc32 (unsigned long crc, unsigned char *buf, size_t len) | |
3413 | { | |
6e0a4fbc | 3414 | static const unsigned int crc32_table[256] = { |
8731e58e AC |
3415 | 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, |
3416 | 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, | |
3417 | 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, | |
3418 | 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, | |
3419 | 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, | |
3420 | 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, | |
3421 | 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, | |
3422 | 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, | |
3423 | 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, | |
3424 | 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, | |
3425 | 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, | |
3426 | 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, | |
3427 | 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, | |
3428 | 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, | |
3429 | 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, | |
3430 | 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, | |
3431 | 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, | |
3432 | 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, | |
3433 | 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, | |
3434 | 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, | |
3435 | 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, | |
3436 | 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, | |
3437 | 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, | |
3438 | 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, | |
3439 | 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, | |
3440 | 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, | |
3441 | 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, | |
3442 | 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, | |
3443 | 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, | |
3444 | 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, | |
3445 | 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, | |
3446 | 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, | |
3447 | 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, | |
3448 | 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, | |
3449 | 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, | |
3450 | 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, | |
3451 | 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, | |
3452 | 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, | |
3453 | 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, | |
3454 | 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, | |
3455 | 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, | |
3456 | 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, | |
3457 | 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, | |
3458 | 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, | |
3459 | 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, | |
3460 | 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, | |
3461 | 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, | |
3462 | 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, | |
3463 | 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, | |
3464 | 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, | |
3465 | 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, | |
3466 | 0x2d02ef8d | |
3467 | }; | |
5b5d99cf JB |
3468 | unsigned char *end; |
3469 | ||
3470 | crc = ~crc & 0xffffffff; | |
3471 | for (end = buf + len; buf < end; ++buf) | |
3472 | crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8); | |
3473 | return ~crc & 0xffffffff;; | |
3474 | } | |
5b03f266 AC |
3475 | |
3476 | ULONGEST | |
3477 | align_up (ULONGEST v, int n) | |
3478 | { | |
3479 | /* Check that N is really a power of two. */ | |
3480 | gdb_assert (n && (n & (n-1)) == 0); | |
3481 | return (v + n - 1) & -n; | |
3482 | } | |
3483 | ||
3484 | ULONGEST | |
3485 | align_down (ULONGEST v, int n) | |
3486 | { | |
3487 | /* Check that N is really a power of two. */ | |
3488 | gdb_assert (n && (n & (n-1)) == 0); | |
3489 | return (v & -n); | |
3490 | } | |
ae5a43e0 DJ |
3491 | |
3492 | /* Allocation function for the libiberty hash table which uses an | |
3493 | obstack. The obstack is passed as DATA. */ | |
3494 | ||
3495 | void * | |
3496 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
3497 | { | |
3498 | unsigned int total = size * count; | |
3499 | void *ptr = obstack_alloc ((struct obstack *) data, total); | |
e0627e85 | 3500 | |
ae5a43e0 DJ |
3501 | memset (ptr, 0, total); |
3502 | return ptr; | |
3503 | } | |
3504 | ||
3505 | /* Trivial deallocation function for the libiberty splay tree and hash | |
3506 | table - don't deallocate anything. Rely on later deletion of the | |
3507 | obstack. DATA will be the obstack, although it is not needed | |
3508 | here. */ | |
3509 | ||
3510 | void | |
3511 | dummy_obstack_deallocate (void *object, void *data) | |
3512 | { | |
3513 | return; | |
3514 | } | |
253c8abb DJ |
3515 | |
3516 | /* The bit offset of the highest byte in a ULONGEST, for overflow | |
3517 | checking. */ | |
3518 | ||
3519 | #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT) | |
3520 | ||
3521 | /* True (non-zero) iff DIGIT is a valid digit in radix BASE, | |
3522 | where 2 <= BASE <= 36. */ | |
3523 | ||
3524 | static int | |
3525 | is_digit_in_base (unsigned char digit, int base) | |
3526 | { | |
3527 | if (!isalnum (digit)) | |
3528 | return 0; | |
3529 | if (base <= 10) | |
3530 | return (isdigit (digit) && digit < base + '0'); | |
3531 | else | |
3532 | return (isdigit (digit) || tolower (digit) < base - 10 + 'a'); | |
3533 | } | |
3534 | ||
3535 | static int | |
3536 | digit_to_int (unsigned char c) | |
3537 | { | |
3538 | if (isdigit (c)) | |
3539 | return c - '0'; | |
3540 | else | |
3541 | return tolower (c) - 'a' + 10; | |
3542 | } | |
3543 | ||
3544 | /* As for strtoul, but for ULONGEST results. */ | |
3545 | ||
3546 | ULONGEST | |
3547 | strtoulst (const char *num, const char **trailer, int base) | |
3548 | { | |
3549 | unsigned int high_part; | |
3550 | ULONGEST result; | |
3551 | int minus = 0; | |
3552 | int i = 0; | |
3553 | ||
3554 | /* Skip leading whitespace. */ | |
3555 | while (isspace (num[i])) | |
3556 | i++; | |
3557 | ||
3558 | /* Handle prefixes. */ | |
3559 | if (num[i] == '+') | |
3560 | i++; | |
3561 | else if (num[i] == '-') | |
3562 | { | |
3563 | minus = 1; | |
3564 | i++; | |
3565 | } | |
3566 | ||
3567 | if (base == 0 || base == 16) | |
3568 | { | |
3569 | if (num[i] == '0' && (num[i + 1] == 'x' || num[i + 1] == 'X')) | |
3570 | { | |
3571 | i += 2; | |
3572 | if (base == 0) | |
3573 | base = 16; | |
3574 | } | |
3575 | } | |
3576 | ||
3577 | if (base == 0 && num[i] == '0') | |
3578 | base = 8; | |
3579 | ||
3580 | if (base == 0) | |
3581 | base = 10; | |
3582 | ||
3583 | if (base < 2 || base > 36) | |
3584 | { | |
3585 | errno = EINVAL; | |
3586 | return 0; | |
3587 | } | |
3588 | ||
3589 | result = high_part = 0; | |
3590 | for (; is_digit_in_base (num[i], base); i += 1) | |
3591 | { | |
3592 | result = result * base + digit_to_int (num[i]); | |
3593 | high_part = high_part * base + (unsigned int) (result >> HIGH_BYTE_POSN); | |
3594 | result &= ((ULONGEST) 1 << HIGH_BYTE_POSN) - 1; | |
3595 | if (high_part > 0xff) | |
3596 | { | |
3597 | errno = ERANGE; | |
3598 | result = ~ (ULONGEST) 0; | |
3599 | high_part = 0; | |
3600 | minus = 0; | |
3601 | break; | |
3602 | } | |
3603 | } | |
3604 | ||
3605 | if (trailer != NULL) | |
3606 | *trailer = &num[i]; | |
3607 | ||
3608 | result = result + ((ULONGEST) high_part << HIGH_BYTE_POSN); | |
3609 | if (minus) | |
3610 | return -result; | |
3611 | else | |
3612 | return result; | |
3613 | } | |
e1024ff1 DJ |
3614 | |
3615 | /* Simple, portable version of dirname that does not modify its | |
3616 | argument. */ | |
3617 | ||
3618 | char * | |
3619 | ldirname (const char *filename) | |
3620 | { | |
3621 | const char *base = lbasename (filename); | |
3622 | char *dirname; | |
3623 | ||
3624 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
3625 | --base; | |
3626 | ||
3627 | if (base == filename) | |
3628 | return NULL; | |
3629 | ||
3630 | dirname = xmalloc (base - filename + 2); | |
3631 | memcpy (dirname, filename, base - filename); | |
3632 | ||
3633 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
3634 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
3635 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
3636 | && !IS_DIR_SEPARATOR (filename[0])) | |
3637 | dirname[base++ - filename] = '.'; | |
3638 | ||
3639 | dirname[base - filename] = '\0'; | |
3640 | return dirname; | |
3641 | } | |
d1a41061 PP |
3642 | |
3643 | /* Call libiberty's buildargv, and return the result. | |
3644 | If buildargv fails due to out-of-memory, call nomem. | |
3645 | Therefore, the returned value is guaranteed to be non-NULL, | |
3646 | unless the parameter itself is NULL. */ | |
3647 | ||
3648 | char ** | |
3649 | gdb_buildargv (const char *s) | |
3650 | { | |
3651 | char **argv = buildargv (s); | |
e0627e85 | 3652 | |
d1a41061 PP |
3653 | if (s != NULL && argv == NULL) |
3654 | nomem (0); | |
3655 | return argv; | |
3656 | } | |
3c16cced | 3657 | |
dc146f7c VP |
3658 | int |
3659 | compare_positive_ints (const void *ap, const void *bp) | |
3660 | { | |
3661 | /* Because we know we're comparing two ints which are positive, | |
3662 | there's no danger of overflow here. */ | |
3663 | return * (int *) ap - * (int *) bp; | |
3664 | } | |
3665 | ||
d18b8b7a HZ |
3666 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3667 | #define AMBIGUOUS_MESS2 ".\nUse \"set gnutarget format-name\" to specify the format." | |
3668 | ||
3669 | const char * | |
3670 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) | |
3671 | { | |
3672 | char *ret, *retp; | |
3673 | int ret_len; | |
3674 | char **p; | |
3675 | ||
3676 | /* Check if errmsg just need simple return. */ | |
3677 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
3678 | return bfd_errmsg (error_tag); | |
3679 | ||
3680 | ret_len = strlen (bfd_errmsg (error_tag)) + strlen (AMBIGUOUS_MESS1) | |
3681 | + strlen (AMBIGUOUS_MESS2); | |
3682 | for (p = matching; *p; p++) | |
3683 | ret_len += strlen (*p) + 1; | |
3684 | ret = xmalloc (ret_len + 1); | |
3685 | retp = ret; | |
3686 | make_cleanup (xfree, ret); | |
3687 | ||
3688 | strcpy (retp, bfd_errmsg (error_tag)); | |
3689 | retp += strlen (retp); | |
3690 | ||
3691 | strcpy (retp, AMBIGUOUS_MESS1); | |
3692 | retp += strlen (retp); | |
3693 | ||
3694 | for (p = matching; *p; p++) | |
3695 | { | |
3696 | sprintf (retp, " %s", *p); | |
3697 | retp += strlen (retp); | |
3698 | } | |
3699 | xfree (matching); | |
3700 | ||
3701 | strcpy (retp, AMBIGUOUS_MESS2); | |
3702 | ||
3703 | return ret; | |
3704 | } | |
3705 | ||
74164c56 JK |
3706 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
3707 | ||
3708 | int | |
3709 | parse_pid_to_attach (char *args) | |
3710 | { | |
3711 | unsigned long pid; | |
3712 | char *dummy; | |
3713 | ||
3714 | if (!args) | |
3715 | error_no_arg (_("process-id to attach")); | |
3716 | ||
3717 | dummy = args; | |
3718 | pid = strtoul (args, &dummy, 0); | |
3719 | /* Some targets don't set errno on errors, grrr! */ | |
3720 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
3721 | error (_("Illegal process-id: %s."), args); | |
3722 | ||
3723 | return pid; | |
3724 | } | |
3725 | ||
2c0b251b PA |
3726 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
3727 | extern initialize_file_ftype _initialize_utils; | |
3728 | ||
3c16cced PA |
3729 | void |
3730 | _initialize_utils (void) | |
3731 | { | |
3732 | add_internal_problem_command (&internal_error_problem); | |
3733 | add_internal_problem_command (&internal_warning_problem); | |
3734 | } |