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" |
c906108c | 61 | |
8731e58e | 62 | #include "inferior.h" /* for signed_pointer_to_address */ |
ac2e2ef7 | 63 | |
2d1b2124 AC |
64 | #include <sys/param.h> /* For MAXPATHLEN */ |
65 | ||
3b78cdbb | 66 | #include "gdb_curses.h" |
020cc13c | 67 | |
dbda9972 | 68 | #include "readline/readline.h" |
c906108c | 69 | |
75feb17d DJ |
70 | #include <sys/time.h> |
71 | #include <time.h> | |
72 | ||
8626589c | 73 | #include "gdb_usleep.h" |
390a8aca | 74 | #include "interps.h" |
8626589c | 75 | |
a3828db0 | 76 | #if !HAVE_DECL_MALLOC |
5ac79d78 | 77 | extern PTR malloc (); /* ARI: PTR */ |
3c37485b | 78 | #endif |
a3828db0 | 79 | #if !HAVE_DECL_REALLOC |
5ac79d78 | 80 | extern PTR realloc (); /* ARI: PTR */ |
0e52036f | 81 | #endif |
a3828db0 | 82 | #if !HAVE_DECL_FREE |
81b8eb80 AC |
83 | extern void free (); |
84 | #endif | |
81b8eb80 | 85 | |
c906108c SS |
86 | /* readline defines this. */ |
87 | #undef savestring | |
88 | ||
9a4105ab | 89 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
90 | |
91 | /* Prototypes for local functions */ | |
92 | ||
d9fcf2fb | 93 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
bee0189a | 94 | va_list, int) ATTR_FORMAT (printf, 2, 0); |
c906108c | 95 | |
d9fcf2fb | 96 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 97 | |
e42c9534 AC |
98 | static void do_my_cleanups (struct cleanup **, struct cleanup *); |
99 | ||
a14ed312 | 100 | static void prompt_for_continue (void); |
c906108c | 101 | |
eb0d3137 | 102 | static void set_screen_size (void); |
a14ed312 | 103 | static void set_width (void); |
c906108c | 104 | |
75feb17d DJ |
105 | /* A flag indicating whether to timestamp debugging messages. */ |
106 | ||
107 | static int debug_timestamp = 0; | |
108 | ||
c906108c SS |
109 | /* Chain of cleanup actions established with make_cleanup, |
110 | to be executed if an error happens. */ | |
111 | ||
c5aa993b JM |
112 | static struct cleanup *cleanup_chain; /* cleaned up after a failed command */ |
113 | static struct cleanup *final_cleanup_chain; /* cleaned up when gdb exits */ | |
43ff13b4 | 114 | |
c906108c SS |
115 | /* Nonzero if we have job control. */ |
116 | ||
117 | int job_control; | |
118 | ||
119 | /* Nonzero means a quit has been requested. */ | |
120 | ||
121 | int quit_flag; | |
122 | ||
123 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
124 | than waiting until QUIT is executed. Be careful in setting this; | |
125 | code which executes with immediate_quit set has to be very careful | |
126 | about being able to deal with being interrupted at any time. It is | |
127 | almost always better to use QUIT; the only exception I can think of | |
128 | is being able to quit out of a system call (using EINTR loses if | |
129 | the SIGINT happens between the previous QUIT and the system call). | |
130 | To immediately quit in the case in which a SIGINT happens between | |
131 | the previous QUIT and setting immediate_quit (desirable anytime we | |
132 | expect to block), call QUIT after setting immediate_quit. */ | |
133 | ||
134 | int immediate_quit; | |
135 | ||
4a351cef AF |
136 | /* Nonzero means that encoded C++/ObjC names should be printed out in their |
137 | C++/ObjC form rather than raw. */ | |
c906108c SS |
138 | |
139 | int demangle = 1; | |
920d2a44 AC |
140 | static void |
141 | show_demangle (struct ui_file *file, int from_tty, | |
142 | struct cmd_list_element *c, const char *value) | |
143 | { | |
144 | fprintf_filtered (file, _("\ | |
145 | Demangling of encoded C++/ObjC names when displaying symbols is %s.\n"), | |
146 | value); | |
147 | } | |
c906108c | 148 | |
4a351cef AF |
149 | /* Nonzero means that encoded C++/ObjC names should be printed out in their |
150 | C++/ObjC form even in assembler language displays. If this is set, but | |
c906108c SS |
151 | DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */ |
152 | ||
153 | int asm_demangle = 0; | |
920d2a44 AC |
154 | static void |
155 | show_asm_demangle (struct ui_file *file, int from_tty, | |
156 | struct cmd_list_element *c, const char *value) | |
157 | { | |
158 | fprintf_filtered (file, _("\ | |
159 | Demangling of C++/ObjC names in disassembly listings is %s.\n"), | |
160 | value); | |
161 | } | |
c906108c SS |
162 | |
163 | /* Nonzero means that strings with character values >0x7F should be printed | |
164 | as octal escapes. Zero means just print the value (e.g. it's an | |
165 | international character, and the terminal or window can cope.) */ | |
166 | ||
167 | int sevenbit_strings = 0; | |
920d2a44 AC |
168 | static void |
169 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
170 | struct cmd_list_element *c, const char *value) | |
171 | { | |
172 | fprintf_filtered (file, _("\ | |
173 | Printing of 8-bit characters in strings as \\nnn is %s.\n"), | |
174 | value); | |
175 | } | |
c906108c SS |
176 | |
177 | /* String to be printed before error messages, if any. */ | |
178 | ||
179 | char *error_pre_print; | |
180 | ||
181 | /* String to be printed before quit messages, if any. */ | |
182 | ||
183 | char *quit_pre_print; | |
184 | ||
185 | /* String to be printed before warning messages, if any. */ | |
186 | ||
187 | char *warning_pre_print = "\nwarning: "; | |
188 | ||
189 | int pagination_enabled = 1; | |
920d2a44 AC |
190 | static void |
191 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
192 | struct cmd_list_element *c, const char *value) | |
193 | { | |
194 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
195 | } | |
196 | ||
c906108c | 197 | \f |
c5aa993b | 198 | |
c906108c SS |
199 | /* Add a new cleanup to the cleanup_chain, |
200 | and return the previous chain pointer | |
201 | to be passed later to do_cleanups or discard_cleanups. | |
202 | Args are FUNCTION to clean up with, and ARG to pass to it. */ | |
203 | ||
204 | struct cleanup * | |
e4005526 | 205 | make_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 206 | { |
c5aa993b | 207 | return make_my_cleanup (&cleanup_chain, function, arg); |
c906108c SS |
208 | } |
209 | ||
4f8d22e3 PA |
210 | struct cleanup * |
211 | make_cleanup_dtor (make_cleanup_ftype *function, void *arg, | |
212 | void (*dtor) (void *)) | |
213 | { | |
214 | return make_my_cleanup2 (&cleanup_chain, | |
215 | function, arg, dtor); | |
216 | } | |
217 | ||
c906108c | 218 | struct cleanup * |
e4005526 | 219 | make_final_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 220 | { |
c5aa993b | 221 | return make_my_cleanup (&final_cleanup_chain, function, arg); |
c906108c | 222 | } |
7a292a7a | 223 | |
7a292a7a | 224 | static void |
fba45db2 | 225 | do_freeargv (void *arg) |
7a292a7a | 226 | { |
c5aa993b | 227 | freeargv ((char **) arg); |
7a292a7a SS |
228 | } |
229 | ||
230 | struct cleanup * | |
fba45db2 | 231 | make_cleanup_freeargv (char **arg) |
7a292a7a SS |
232 | { |
233 | return make_my_cleanup (&cleanup_chain, do_freeargv, arg); | |
234 | } | |
235 | ||
5c65bbb6 AC |
236 | static void |
237 | do_bfd_close_cleanup (void *arg) | |
238 | { | |
239 | bfd_close (arg); | |
240 | } | |
241 | ||
242 | struct cleanup * | |
243 | make_cleanup_bfd_close (bfd *abfd) | |
244 | { | |
245 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
246 | } | |
247 | ||
f5ff8c83 AC |
248 | static void |
249 | do_close_cleanup (void *arg) | |
250 | { | |
f042532c AC |
251 | int *fd = arg; |
252 | close (*fd); | |
f5ff8c83 AC |
253 | } |
254 | ||
255 | struct cleanup * | |
256 | make_cleanup_close (int fd) | |
257 | { | |
f042532c AC |
258 | int *saved_fd = xmalloc (sizeof (fd)); |
259 | *saved_fd = fd; | |
a05016c0 | 260 | return make_cleanup_dtor (do_close_cleanup, saved_fd, xfree); |
f5ff8c83 AC |
261 | } |
262 | ||
7c8a8b04 TT |
263 | /* Helper function which does the work for make_cleanup_fclose. */ |
264 | ||
265 | static void | |
266 | do_fclose_cleanup (void *arg) | |
267 | { | |
268 | FILE *file = arg; | |
269 | fclose (arg); | |
270 | } | |
271 | ||
272 | /* Return a new cleanup that closes FILE. */ | |
273 | ||
274 | struct cleanup * | |
275 | make_cleanup_fclose (FILE *file) | |
276 | { | |
277 | return make_cleanup (do_fclose_cleanup, file); | |
278 | } | |
279 | ||
16ad9370 TT |
280 | /* Helper function which does the work for make_cleanup_obstack_free. */ |
281 | ||
282 | static void | |
283 | do_obstack_free (void *arg) | |
284 | { | |
285 | struct obstack *ob = arg; | |
286 | obstack_free (ob, NULL); | |
287 | } | |
288 | ||
289 | /* Return a new cleanup that frees OBSTACK. */ | |
290 | ||
291 | struct cleanup * | |
292 | make_cleanup_obstack_free (struct obstack *obstack) | |
293 | { | |
294 | return make_cleanup (do_obstack_free, obstack); | |
295 | } | |
296 | ||
11cf8741 | 297 | static void |
d9fcf2fb | 298 | do_ui_file_delete (void *arg) |
11cf8741 | 299 | { |
d9fcf2fb | 300 | ui_file_delete (arg); |
11cf8741 JM |
301 | } |
302 | ||
303 | struct cleanup * | |
d9fcf2fb | 304 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 305 | { |
d9fcf2fb | 306 | return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg); |
11cf8741 JM |
307 | } |
308 | ||
7b90c3f9 JB |
309 | static void |
310 | do_free_section_addr_info (void *arg) | |
311 | { | |
312 | free_section_addr_info (arg); | |
313 | } | |
314 | ||
315 | struct cleanup * | |
316 | make_cleanup_free_section_addr_info (struct section_addr_info *addrs) | |
317 | { | |
318 | return make_my_cleanup (&cleanup_chain, do_free_section_addr_info, addrs); | |
319 | } | |
320 | ||
0b080f59 VP |
321 | struct restore_integer_closure |
322 | { | |
323 | int *variable; | |
324 | int value; | |
325 | }; | |
326 | ||
327 | static void | |
328 | restore_integer (void *p) | |
329 | { | |
330 | struct restore_integer_closure *closure = p; | |
331 | *(closure->variable) = closure->value; | |
332 | } | |
7b90c3f9 | 333 | |
0b080f59 VP |
334 | /* Remember the current value of *VARIABLE and make it restored when the cleanup |
335 | is run. */ | |
c906108c | 336 | struct cleanup * |
0b080f59 VP |
337 | make_cleanup_restore_integer (int *variable) |
338 | { | |
339 | struct restore_integer_closure *c = | |
340 | xmalloc (sizeof (struct restore_integer_closure)); | |
341 | c->variable = variable; | |
342 | c->value = *variable; | |
343 | ||
344 | return make_my_cleanup2 (&cleanup_chain, restore_integer, (void *)c, | |
345 | xfree); | |
346 | } | |
347 | ||
348 | struct cleanup * | |
349 | make_my_cleanup2 (struct cleanup **pmy_chain, make_cleanup_ftype *function, | |
350 | void *arg, void (*free_arg) (void *)) | |
c906108c | 351 | { |
52f0bd74 | 352 | struct cleanup *new |
8731e58e | 353 | = (struct cleanup *) xmalloc (sizeof (struct cleanup)); |
52f0bd74 | 354 | struct cleanup *old_chain = *pmy_chain; |
c906108c SS |
355 | |
356 | new->next = *pmy_chain; | |
357 | new->function = function; | |
0b080f59 | 358 | new->free_arg = free_arg; |
c906108c SS |
359 | new->arg = arg; |
360 | *pmy_chain = new; | |
361 | ||
362 | return old_chain; | |
363 | } | |
364 | ||
0b080f59 VP |
365 | struct cleanup * |
366 | make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function, | |
367 | void *arg) | |
368 | { | |
369 | return make_my_cleanup2 (pmy_chain, function, arg, NULL); | |
370 | } | |
371 | ||
c906108c SS |
372 | /* Discard cleanups and do the actions they describe |
373 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
374 | ||
375 | void | |
aa1ee363 | 376 | do_cleanups (struct cleanup *old_chain) |
c906108c | 377 | { |
c5aa993b | 378 | do_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
379 | } |
380 | ||
381 | void | |
aa1ee363 | 382 | do_final_cleanups (struct cleanup *old_chain) |
c906108c | 383 | { |
c5aa993b | 384 | do_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
385 | } |
386 | ||
e42c9534 | 387 | static void |
aa1ee363 AC |
388 | do_my_cleanups (struct cleanup **pmy_chain, |
389 | struct cleanup *old_chain) | |
c906108c | 390 | { |
52f0bd74 | 391 | struct cleanup *ptr; |
c906108c SS |
392 | while ((ptr = *pmy_chain) != old_chain) |
393 | { | |
394 | *pmy_chain = ptr->next; /* Do this first incase recursion */ | |
395 | (*ptr->function) (ptr->arg); | |
0b080f59 VP |
396 | if (ptr->free_arg) |
397 | (*ptr->free_arg) (ptr->arg); | |
b8c9b27d | 398 | xfree (ptr); |
c906108c SS |
399 | } |
400 | } | |
401 | ||
402 | /* Discard cleanups, not doing the actions they describe, | |
403 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
404 | ||
405 | void | |
aa1ee363 | 406 | discard_cleanups (struct cleanup *old_chain) |
c906108c | 407 | { |
c5aa993b | 408 | discard_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
409 | } |
410 | ||
411 | void | |
aa1ee363 | 412 | discard_final_cleanups (struct cleanup *old_chain) |
c906108c | 413 | { |
c5aa993b | 414 | discard_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
415 | } |
416 | ||
417 | void | |
aa1ee363 AC |
418 | discard_my_cleanups (struct cleanup **pmy_chain, |
419 | struct cleanup *old_chain) | |
c906108c | 420 | { |
52f0bd74 | 421 | struct cleanup *ptr; |
c906108c SS |
422 | while ((ptr = *pmy_chain) != old_chain) |
423 | { | |
424 | *pmy_chain = ptr->next; | |
0b080f59 VP |
425 | if (ptr->free_arg) |
426 | (*ptr->free_arg) (ptr->arg); | |
b8c9b27d | 427 | xfree (ptr); |
c906108c SS |
428 | } |
429 | } | |
430 | ||
431 | /* Set the cleanup_chain to 0, and return the old cleanup chain. */ | |
432 | struct cleanup * | |
fba45db2 | 433 | save_cleanups (void) |
c906108c | 434 | { |
c5aa993b | 435 | return save_my_cleanups (&cleanup_chain); |
c906108c SS |
436 | } |
437 | ||
438 | struct cleanup * | |
fba45db2 | 439 | save_final_cleanups (void) |
c906108c | 440 | { |
c5aa993b | 441 | return save_my_cleanups (&final_cleanup_chain); |
c906108c SS |
442 | } |
443 | ||
444 | struct cleanup * | |
fba45db2 | 445 | save_my_cleanups (struct cleanup **pmy_chain) |
c906108c SS |
446 | { |
447 | struct cleanup *old_chain = *pmy_chain; | |
448 | ||
449 | *pmy_chain = 0; | |
450 | return old_chain; | |
451 | } | |
452 | ||
453 | /* Restore the cleanup chain from a previously saved chain. */ | |
454 | void | |
fba45db2 | 455 | restore_cleanups (struct cleanup *chain) |
c906108c | 456 | { |
c5aa993b | 457 | restore_my_cleanups (&cleanup_chain, chain); |
c906108c SS |
458 | } |
459 | ||
460 | void | |
fba45db2 | 461 | restore_final_cleanups (struct cleanup *chain) |
c906108c | 462 | { |
c5aa993b | 463 | restore_my_cleanups (&final_cleanup_chain, chain); |
c906108c SS |
464 | } |
465 | ||
466 | void | |
fba45db2 | 467 | restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain) |
c906108c SS |
468 | { |
469 | *pmy_chain = chain; | |
470 | } | |
471 | ||
472 | /* This function is useful for cleanups. | |
473 | Do | |
474 | ||
c5aa993b JM |
475 | foo = xmalloc (...); |
476 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
477 | |
478 | to arrange to free the object thus allocated. */ | |
479 | ||
480 | void | |
2f9429ae | 481 | free_current_contents (void *ptr) |
c906108c | 482 | { |
2f9429ae | 483 | void **location = ptr; |
e2f9c474 | 484 | if (location == NULL) |
8e65ff28 | 485 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 486 | _("free_current_contents: NULL pointer")); |
2f9429ae | 487 | if (*location != NULL) |
e2f9c474 | 488 | { |
b8c9b27d | 489 | xfree (*location); |
e2f9c474 AC |
490 | *location = NULL; |
491 | } | |
c906108c SS |
492 | } |
493 | ||
494 | /* Provide a known function that does nothing, to use as a base for | |
495 | for a possibly long chain of cleanups. This is useful where we | |
496 | use the cleanup chain for handling normal cleanups as well as dealing | |
497 | with cleanups that need to be done as a result of a call to error(). | |
498 | In such cases, we may not be certain where the first cleanup is, unless | |
499 | we have a do-nothing one to always use as the base. */ | |
500 | ||
c906108c | 501 | void |
e4005526 | 502 | null_cleanup (void *arg) |
c906108c SS |
503 | { |
504 | } | |
505 | ||
0ffe5012 PA |
506 | /* Continuations are implemented as cleanups internally. Inherit from |
507 | cleanups. */ | |
508 | struct continuation | |
509 | { | |
510 | struct cleanup base; | |
511 | }; | |
512 | ||
95e54da7 PA |
513 | /* Add a continuation to the continuation list of THREAD. The new |
514 | continuation will be added at the front. */ | |
43ff13b4 | 515 | void |
95e54da7 PA |
516 | add_continuation (struct thread_info *thread, |
517 | void (*continuation_hook) (void *), void *args, | |
604ead4a | 518 | void (*continuation_free_args) (void *)) |
43ff13b4 | 519 | { |
95e54da7 | 520 | struct cleanup *as_cleanup = &thread->continuations->base; |
604ead4a | 521 | make_cleanup_ftype *continuation_hook_fn = continuation_hook; |
43ff13b4 | 522 | |
0ffe5012 | 523 | make_my_cleanup2 (&as_cleanup, |
604ead4a PA |
524 | continuation_hook_fn, |
525 | args, | |
526 | continuation_free_args); | |
0ffe5012 | 527 | |
95e54da7 | 528 | thread->continuations = (struct continuation *) as_cleanup; |
43ff13b4 JM |
529 | } |
530 | ||
e0ba6746 PA |
531 | /* Add a continuation to the continuation list of INFERIOR. The new |
532 | continuation will be added at the front. */ | |
533 | ||
534 | void | |
535 | add_inferior_continuation (void (*continuation_hook) (void *), void *args, | |
536 | void (*continuation_free_args) (void *)) | |
537 | { | |
538 | struct inferior *inf = current_inferior (); | |
539 | struct cleanup *as_cleanup = &inf->continuations->base; | |
540 | make_cleanup_ftype *continuation_hook_fn = continuation_hook; | |
541 | ||
542 | make_my_cleanup2 (&as_cleanup, | |
543 | continuation_hook_fn, | |
544 | args, | |
545 | continuation_free_args); | |
546 | ||
547 | inf->continuations = (struct continuation *) as_cleanup; | |
548 | } | |
549 | ||
550 | /* Do all continuations of the current inferior. */ | |
551 | ||
552 | void | |
553 | do_all_inferior_continuations (void) | |
554 | { | |
555 | struct cleanup *old_chain; | |
556 | struct cleanup *as_cleanup; | |
557 | struct inferior *inf = current_inferior (); | |
558 | ||
559 | if (inf->continuations == NULL) | |
560 | return; | |
561 | ||
562 | /* Copy the list header into another pointer, and set the global | |
563 | list header to null, so that the global list can change as a side | |
564 | effect of invoking the continuations and the processing of the | |
565 | preexisting continuations will not be affected. */ | |
566 | ||
567 | as_cleanup = &inf->continuations->base; | |
568 | inf->continuations = NULL; | |
569 | ||
570 | /* Work now on the list we have set aside. */ | |
571 | do_my_cleanups (&as_cleanup, NULL); | |
572 | } | |
573 | ||
574 | /* Get rid of all the inferior-wide continuations of INF. */ | |
575 | ||
576 | void | |
577 | discard_all_inferior_continuations (struct inferior *inf) | |
578 | { | |
579 | struct cleanup *continuation_ptr = &inf->continuations->base; | |
580 | discard_my_cleanups (&continuation_ptr, NULL); | |
581 | inf->continuations = NULL; | |
582 | } | |
583 | ||
95e54da7 PA |
584 | static void |
585 | restore_thread_cleanup (void *arg) | |
586 | { | |
587 | ptid_t *ptid_p = arg; | |
588 | switch_to_thread (*ptid_p); | |
589 | } | |
590 | ||
591 | /* Walk down the continuation list of PTID, and execute all the | |
592 | continuations. There is a problem though. In some cases new | |
593 | continuations may be added while we are in the middle of this loop. | |
594 | If this happens they will be added in the front, and done before we | |
595 | have a chance of exhausting those that were already there. We need | |
596 | to then save the beginning of the list in a pointer and do the | |
597 | continuations from there on, instead of using the global beginning | |
598 | of list as our iteration pointer. */ | |
599 | static void | |
600 | do_all_continuations_ptid (ptid_t ptid, | |
601 | struct continuation **continuations_p) | |
c2d11a7d | 602 | { |
95e54da7 PA |
603 | struct cleanup *old_chain; |
604 | ptid_t current_thread; | |
605 | struct cleanup *as_cleanup; | |
606 | ||
607 | if (*continuations_p == NULL) | |
608 | return; | |
609 | ||
610 | current_thread = inferior_ptid; | |
611 | ||
612 | /* Restore selected thread on exit. Don't try to restore the frame | |
613 | as well, because: | |
614 | ||
615 | - When running continuations, the selected frame is always #0. | |
616 | ||
617 | - The continuations may trigger symbol file loads, which may | |
618 | change the frame layout (frame ids change), which would trigger | |
619 | a warning if we used make_cleanup_restore_current_thread. */ | |
620 | ||
621 | old_chain = make_cleanup (restore_thread_cleanup, ¤t_thread); | |
622 | ||
623 | /* Let the continuation see this thread as selected. */ | |
624 | switch_to_thread (ptid); | |
c2d11a7d JM |
625 | |
626 | /* Copy the list header into another pointer, and set the global | |
627 | list header to null, so that the global list can change as a side | |
604ead4a PA |
628 | effect of invoking the continuations and the processing of the |
629 | preexisting continuations will not be affected. */ | |
630 | ||
95e54da7 PA |
631 | as_cleanup = &(*continuations_p)->base; |
632 | *continuations_p = NULL; | |
c2d11a7d | 633 | |
0a4a0819 | 634 | /* Work now on the list we have set aside. */ |
95e54da7 PA |
635 | do_my_cleanups (&as_cleanup, NULL); |
636 | ||
637 | do_cleanups (old_chain); | |
638 | } | |
639 | ||
640 | /* Callback for iterate over threads. */ | |
641 | static int | |
642 | do_all_continuations_thread_callback (struct thread_info *thread, void *data) | |
643 | { | |
644 | do_all_continuations_ptid (thread->ptid, &thread->continuations); | |
645 | return 0; | |
c2d11a7d JM |
646 | } |
647 | ||
95e54da7 | 648 | /* Do all continuations of thread THREAD. */ |
c2d11a7d | 649 | void |
95e54da7 PA |
650 | do_all_continuations_thread (struct thread_info *thread) |
651 | { | |
652 | do_all_continuations_thread_callback (thread, NULL); | |
653 | } | |
654 | ||
655 | /* Do all continuations of all threads. */ | |
656 | void | |
657 | do_all_continuations (void) | |
43ff13b4 | 658 | { |
95e54da7 PA |
659 | iterate_over_threads (do_all_continuations_thread_callback, NULL); |
660 | } | |
661 | ||
662 | /* Callback for iterate over threads. */ | |
663 | static int | |
664 | discard_all_continuations_thread_callback (struct thread_info *thread, | |
665 | void *data) | |
666 | { | |
667 | struct cleanup *continuation_ptr = &thread->continuations->base; | |
0ffe5012 | 668 | discard_my_cleanups (&continuation_ptr, NULL); |
95e54da7 PA |
669 | thread->continuations = NULL; |
670 | return 0; | |
671 | } | |
672 | ||
673 | /* Get rid of all the continuations of THREAD. */ | |
674 | void | |
675 | discard_all_continuations_thread (struct thread_info *thread) | |
676 | { | |
677 | discard_all_continuations_thread_callback (thread, NULL); | |
678 | } | |
679 | ||
680 | /* Get rid of all the continuations of all threads. */ | |
681 | void | |
682 | discard_all_continuations (void) | |
683 | { | |
684 | iterate_over_threads (discard_all_continuations_thread_callback, NULL); | |
43ff13b4 | 685 | } |
c2c6d25f | 686 | |
95e54da7 PA |
687 | |
688 | /* Add a continuation to the intermediate continuation list of THREAD. | |
689 | The new continuation will be added at the front. */ | |
c2d11a7d | 690 | void |
95e54da7 PA |
691 | add_intermediate_continuation (struct thread_info *thread, |
692 | void (*continuation_hook) | |
604ead4a PA |
693 | (void *), void *args, |
694 | void (*continuation_free_args) (void *)) | |
c2d11a7d | 695 | { |
95e54da7 | 696 | struct cleanup *as_cleanup = &thread->intermediate_continuations->base; |
604ead4a | 697 | make_cleanup_ftype *continuation_hook_fn = continuation_hook; |
c2d11a7d | 698 | |
0ffe5012 | 699 | make_my_cleanup2 (&as_cleanup, |
604ead4a PA |
700 | continuation_hook_fn, |
701 | args, | |
702 | continuation_free_args); | |
0ffe5012 | 703 | |
95e54da7 | 704 | thread->intermediate_continuations = (struct continuation *) as_cleanup; |
c2d11a7d JM |
705 | } |
706 | ||
707 | /* Walk down the cmd_continuation list, and execute all the | |
708 | continuations. There is a problem though. In some cases new | |
709 | continuations may be added while we are in the middle of this | |
710 | loop. If this happens they will be added in the front, and done | |
711 | before we have a chance of exhausting those that were already | |
712 | there. We need to then save the beginning of the list in a pointer | |
713 | and do the continuations from there on, instead of using the | |
714 | global beginning of list as our iteration pointer.*/ | |
95e54da7 PA |
715 | static int |
716 | do_all_intermediate_continuations_thread_callback (struct thread_info *thread, | |
717 | void *data) | |
718 | { | |
719 | do_all_continuations_ptid (thread->ptid, | |
720 | &thread->intermediate_continuations); | |
721 | return 0; | |
722 | } | |
723 | ||
724 | /* Do all intermediate continuations of thread THREAD. */ | |
c2d11a7d | 725 | void |
95e54da7 | 726 | do_all_intermediate_continuations_thread (struct thread_info *thread) |
c2d11a7d | 727 | { |
95e54da7 PA |
728 | do_all_intermediate_continuations_thread_callback (thread, NULL); |
729 | } | |
c2d11a7d | 730 | |
95e54da7 PA |
731 | /* Do all intermediate continuations of all threads. */ |
732 | void | |
733 | do_all_intermediate_continuations (void) | |
734 | { | |
735 | iterate_over_threads (do_all_intermediate_continuations_thread_callback, NULL); | |
736 | } | |
604ead4a | 737 | |
95e54da7 PA |
738 | /* Callback for iterate over threads. */ |
739 | static int | |
740 | discard_all_intermediate_continuations_thread_callback (struct thread_info *thread, | |
741 | void *data) | |
742 | { | |
743 | struct cleanup *continuation_ptr = &thread->intermediate_continuations->base; | |
744 | discard_my_cleanups (&continuation_ptr, NULL); | |
745 | thread->intermediate_continuations = NULL; | |
746 | return 0; | |
747 | } | |
c2d11a7d | 748 | |
95e54da7 PA |
749 | /* Get rid of all the intermediate continuations of THREAD. */ |
750 | void | |
751 | discard_all_intermediate_continuations_thread (struct thread_info *thread) | |
752 | { | |
753 | discard_all_intermediate_continuations_thread_callback (thread, NULL); | |
c2d11a7d JM |
754 | } |
755 | ||
95e54da7 | 756 | /* Get rid of all the intermediate continuations of all threads. */ |
c2c6d25f | 757 | void |
fba45db2 | 758 | discard_all_intermediate_continuations (void) |
c2c6d25f | 759 | { |
95e54da7 | 760 | iterate_over_threads (discard_all_intermediate_continuations_thread_callback, NULL); |
c2c6d25f | 761 | } |
c906108c | 762 | \f |
c5aa993b | 763 | |
8731e58e | 764 | |
f5a96129 AC |
765 | /* Print a warning message. The first argument STRING is the warning |
766 | message, used as an fprintf format string, the second is the | |
767 | va_list of arguments for that string. A warning is unfiltered (not | |
768 | paginated) so that the user does not need to page through each | |
769 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
770 | |
771 | void | |
f5a96129 | 772 | vwarning (const char *string, va_list args) |
c906108c | 773 | { |
9a4105ab AC |
774 | if (deprecated_warning_hook) |
775 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
776 | else |
777 | { | |
778 | target_terminal_ours (); | |
779 | wrap_here (""); /* Force out any buffered output */ | |
780 | gdb_flush (gdb_stdout); | |
781 | if (warning_pre_print) | |
306d9ac5 | 782 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
783 | vfprintf_unfiltered (gdb_stderr, string, args); |
784 | fprintf_unfiltered (gdb_stderr, "\n"); | |
785 | va_end (args); | |
786 | } | |
c906108c SS |
787 | } |
788 | ||
789 | /* Print a warning message. | |
790 | The first argument STRING is the warning message, used as a fprintf string, | |
791 | and the remaining args are passed as arguments to it. | |
792 | The primary difference between warnings and errors is that a warning | |
793 | does not force the return to command level. */ | |
794 | ||
c906108c | 795 | void |
8731e58e | 796 | warning (const char *string, ...) |
c906108c SS |
797 | { |
798 | va_list args; | |
c906108c | 799 | va_start (args, string); |
f5a96129 AC |
800 | vwarning (string, args); |
801 | va_end (args); | |
c906108c SS |
802 | } |
803 | ||
c906108c SS |
804 | /* Print an error message and return to command level. |
805 | The first argument STRING is the error message, used as a fprintf string, | |
806 | and the remaining args are passed as arguments to it. */ | |
807 | ||
4ce44c66 JM |
808 | NORETURN void |
809 | verror (const char *string, va_list args) | |
810 | { | |
6b1b7650 | 811 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
812 | } |
813 | ||
c906108c | 814 | NORETURN void |
8731e58e | 815 | error (const char *string, ...) |
c906108c SS |
816 | { |
817 | va_list args; | |
c906108c | 818 | va_start (args, string); |
6b1b7650 | 819 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 | 820 | va_end (args); |
c906108c SS |
821 | } |
822 | ||
d75e3c94 JJ |
823 | /* Print an error message and quit. |
824 | The first argument STRING is the error message, used as a fprintf string, | |
825 | and the remaining args are passed as arguments to it. */ | |
826 | ||
827 | NORETURN void | |
828 | vfatal (const char *string, va_list args) | |
829 | { | |
6b1b7650 | 830 | throw_vfatal (string, args); |
d75e3c94 JJ |
831 | } |
832 | ||
833 | NORETURN void | |
834 | fatal (const char *string, ...) | |
835 | { | |
836 | va_list args; | |
837 | va_start (args, string); | |
6b1b7650 | 838 | throw_vfatal (string, args); |
d75e3c94 JJ |
839 | va_end (args); |
840 | } | |
841 | ||
d75e3c94 JJ |
842 | NORETURN void |
843 | error_stream (struct ui_file *stream) | |
2acceee2 | 844 | { |
759ef836 | 845 | char *message = ui_file_xstrdup (stream, NULL); |
6b1b7650 | 846 | make_cleanup (xfree, message); |
8a3fe4f8 | 847 | error (("%s"), message); |
2acceee2 | 848 | } |
c906108c | 849 | |
7991dee7 JK |
850 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
851 | ||
852 | static void | |
853 | dump_core (void) | |
854 | { | |
855 | #ifdef HAVE_SETRLIMIT | |
856 | struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY }; | |
857 | ||
858 | setrlimit (RLIMIT_CORE, &rlim); | |
859 | #endif /* HAVE_SETRLIMIT */ | |
860 | ||
861 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
862 | } | |
863 | ||
864 | /* Check whether GDB will be able to dump core using the dump_core function. */ | |
865 | ||
866 | static int | |
867 | can_dump_core (const char *reason) | |
868 | { | |
869 | #ifdef HAVE_GETRLIMIT | |
870 | struct rlimit rlim; | |
871 | ||
872 | /* Be quiet and assume we can dump if an error is returned. */ | |
873 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
874 | return 1; | |
875 | ||
876 | if (rlim.rlim_max == 0) | |
877 | { | |
878 | fprintf_unfiltered (gdb_stderr, | |
879 | _("%s\nUnable to dump core, use `ulimit -c unlimited'" | |
880 | " before executing GDB next time.\n"), reason); | |
881 | return 0; | |
882 | } | |
883 | #endif /* HAVE_GETRLIMIT */ | |
884 | ||
885 | return 1; | |
886 | } | |
887 | ||
3c16cced PA |
888 | /* Allow the user to configure the debugger behavior with respect to |
889 | what to do when an internal problem is detected. */ | |
890 | ||
891 | const char internal_problem_ask[] = "ask"; | |
892 | const char internal_problem_yes[] = "yes"; | |
893 | const char internal_problem_no[] = "no"; | |
894 | static const char *internal_problem_modes[] = | |
895 | { | |
896 | internal_problem_ask, | |
897 | internal_problem_yes, | |
898 | internal_problem_no, | |
899 | NULL | |
900 | }; | |
901 | static const char *internal_problem_mode = internal_problem_ask; | |
902 | ||
dec43320 AC |
903 | /* Print a message reporting an internal error/warning. Ask the user |
904 | if they want to continue, dump core, or just exit. Return | |
905 | something to indicate a quit. */ | |
c906108c | 906 | |
dec43320 | 907 | struct internal_problem |
c906108c | 908 | { |
dec43320 | 909 | const char *name; |
3c16cced PA |
910 | const char *should_quit; |
911 | const char *should_dump_core; | |
dec43320 AC |
912 | }; |
913 | ||
914 | /* Report a problem, internal to GDB, to the user. Once the problem | |
915 | has been reported, and assuming GDB didn't quit, the caller can | |
916 | either allow execution to resume or throw an error. */ | |
917 | ||
bee0189a | 918 | static void ATTR_FORMAT (printf, 4, 0) |
dec43320 | 919 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 920 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 921 | { |
dec43320 | 922 | static int dejavu; |
375fc983 | 923 | int quit_p; |
7be570e7 | 924 | int dump_core_p; |
714b1282 | 925 | char *reason; |
c906108c | 926 | |
dec43320 | 927 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
928 | { |
929 | static char msg[] = "Recursive internal problem.\n"; | |
930 | switch (dejavu) | |
931 | { | |
932 | case 0: | |
933 | dejavu = 1; | |
934 | break; | |
935 | case 1: | |
936 | dejavu = 2; | |
937 | fputs_unfiltered (msg, gdb_stderr); | |
7991dee7 | 938 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
939 | default: |
940 | dejavu = 3; | |
bf1d7d9c JB |
941 | /* Newer GLIBC versions put the warn_unused_result attribute |
942 | on write, but this is one of those rare cases where | |
943 | ignoring the return value is correct. Casting to (void) | |
944 | does not fix this problem. This is the solution suggested | |
945 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
946 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
7991dee7 | 947 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
948 | exit (1); |
949 | } | |
950 | } | |
c906108c | 951 | |
dec43320 | 952 | /* Try to get the message out and at the start of a new line. */ |
4261bedc | 953 | target_terminal_ours (); |
dec43320 AC |
954 | begin_line (); |
955 | ||
714b1282 AC |
956 | /* Create a string containing the full error/warning message. Need |
957 | to call query with this full string, as otherwize the reason | |
958 | (error/warning) and question become separated. Format using a | |
959 | style similar to a compiler error message. Include extra detail | |
960 | so that the user knows that they are living on the edge. */ | |
961 | { | |
962 | char *msg; | |
e623b504 | 963 | msg = xstrvprintf (fmt, ap); |
b435e160 | 964 | reason = xstrprintf ("\ |
714b1282 AC |
965 | %s:%d: %s: %s\n\ |
966 | A problem internal to GDB has been detected,\n\ | |
967 | further debugging may prove unreliable.", file, line, problem->name, msg); | |
968 | xfree (msg); | |
969 | make_cleanup (xfree, reason); | |
970 | } | |
7be570e7 | 971 | |
3c16cced | 972 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 973 | { |
dec43320 | 974 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
975 | this lessens the likelihood of GDB going into an infinite |
976 | loop. */ | |
26bb68be PP |
977 | if (caution == 0) |
978 | { | |
979 | /* Emit the message and quit. */ | |
980 | fputs_unfiltered (reason, gdb_stderr); | |
981 | fputs_unfiltered ("\n", gdb_stderr); | |
982 | quit_p = 1; | |
983 | } | |
984 | else | |
985 | quit_p = query (_("%s\nQuit this debugging session? "), reason); | |
dec43320 | 986 | } |
3c16cced PA |
987 | else if (problem->should_quit == internal_problem_yes) |
988 | quit_p = 1; | |
989 | else if (problem->should_quit == internal_problem_no) | |
990 | quit_p = 0; | |
991 | else | |
992 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 993 | |
3c16cced | 994 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 995 | { |
7991dee7 JK |
996 | if (!can_dump_core (reason)) |
997 | dump_core_p = 0; | |
998 | else | |
999 | { | |
1000 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
1001 | `dropping' so that it is easier to see that something went | |
1002 | wrong in GDB. */ | |
1003 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason); | |
1004 | } | |
dec43320 | 1005 | } |
3c16cced | 1006 | else if (problem->should_dump_core == internal_problem_yes) |
7991dee7 | 1007 | dump_core_p = can_dump_core (reason); |
3c16cced PA |
1008 | else if (problem->should_dump_core == internal_problem_no) |
1009 | dump_core_p = 0; | |
1010 | else | |
1011 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 1012 | |
375fc983 | 1013 | if (quit_p) |
7be570e7 JM |
1014 | { |
1015 | if (dump_core_p) | |
7991dee7 | 1016 | dump_core (); |
375fc983 AC |
1017 | else |
1018 | exit (1); | |
7be570e7 JM |
1019 | } |
1020 | else | |
1021 | { | |
1022 | if (dump_core_p) | |
375fc983 | 1023 | { |
9b265ec2 | 1024 | #ifdef HAVE_WORKING_FORK |
375fc983 | 1025 | if (fork () == 0) |
7991dee7 | 1026 | dump_core (); |
9b265ec2 | 1027 | #endif |
375fc983 | 1028 | } |
7be570e7 | 1029 | } |
96baa820 JM |
1030 | |
1031 | dejavu = 0; | |
dec43320 AC |
1032 | } |
1033 | ||
1034 | static struct internal_problem internal_error_problem = { | |
3c16cced | 1035 | "internal-error", internal_problem_ask, internal_problem_ask |
dec43320 AC |
1036 | }; |
1037 | ||
1038 | NORETURN void | |
8731e58e | 1039 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
1040 | { |
1041 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
315a522e | 1042 | deprecated_throw_reason (RETURN_ERROR); |
c906108c SS |
1043 | } |
1044 | ||
4ce44c66 | 1045 | NORETURN void |
8e65ff28 | 1046 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
1047 | { |
1048 | va_list ap; | |
1049 | va_start (ap, string); | |
8e65ff28 | 1050 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
1051 | va_end (ap); |
1052 | } | |
1053 | ||
dec43320 | 1054 | static struct internal_problem internal_warning_problem = { |
3c16cced | 1055 | "internal-warning", internal_problem_ask, internal_problem_ask |
dec43320 AC |
1056 | }; |
1057 | ||
1058 | void | |
8731e58e | 1059 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
1060 | { |
1061 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
1062 | } | |
1063 | ||
1064 | void | |
1065 | internal_warning (const char *file, int line, const char *string, ...) | |
1066 | { | |
1067 | va_list ap; | |
1068 | va_start (ap, string); | |
1069 | internal_vwarning (file, line, string, ap); | |
1070 | va_end (ap); | |
1071 | } | |
1072 | ||
3c16cced PA |
1073 | /* Dummy functions to keep add_prefix_cmd happy. */ |
1074 | ||
1075 | static void | |
1076 | set_internal_problem_cmd (char *args, int from_tty) | |
1077 | { | |
1078 | } | |
1079 | ||
1080 | static void | |
1081 | show_internal_problem_cmd (char *args, int from_tty) | |
1082 | { | |
1083 | } | |
1084 | ||
1085 | /* When GDB reports an internal problem (error or warning) it gives | |
1086 | the user the opportunity to quit GDB and/or create a core file of | |
1087 | the current debug session. This function registers a few commands | |
1088 | that make it possible to specify that GDB should always or never | |
1089 | quit or create a core file, without asking. The commands look | |
1090 | like: | |
1091 | ||
1092 | maint set PROBLEM-NAME quit ask|yes|no | |
1093 | maint show PROBLEM-NAME quit | |
1094 | maint set PROBLEM-NAME corefile ask|yes|no | |
1095 | maint show PROBLEM-NAME corefile | |
1096 | ||
1097 | Where PROBLEM-NAME is currently "internal-error" or | |
1098 | "internal-warning". */ | |
1099 | ||
1100 | static void | |
1101 | add_internal_problem_command (struct internal_problem *problem) | |
1102 | { | |
1103 | struct cmd_list_element **set_cmd_list; | |
1104 | struct cmd_list_element **show_cmd_list; | |
1105 | char *set_doc; | |
1106 | char *show_doc; | |
1107 | ||
1108 | set_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
1109 | show_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
1110 | *set_cmd_list = NULL; | |
1111 | *show_cmd_list = NULL; | |
1112 | ||
1113 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
1114 | problem->name); | |
1115 | ||
1116 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
1117 | problem->name); | |
1118 | ||
1119 | add_prefix_cmd ((char*) problem->name, | |
1120 | class_maintenance, set_internal_problem_cmd, set_doc, | |
1121 | set_cmd_list, | |
1122 | concat ("maintenance set ", problem->name, " ", NULL), | |
1123 | 0/*allow-unknown*/, &maintenance_set_cmdlist); | |
1124 | ||
1125 | add_prefix_cmd ((char*) problem->name, | |
1126 | class_maintenance, show_internal_problem_cmd, show_doc, | |
1127 | show_cmd_list, | |
1128 | concat ("maintenance show ", problem->name, " ", NULL), | |
1129 | 0/*allow-unknown*/, &maintenance_show_cmdlist); | |
1130 | ||
1131 | set_doc = xstrprintf (_("\ | |
1132 | Set whether GDB should quit when an %s is detected"), | |
1133 | problem->name); | |
1134 | show_doc = xstrprintf (_("\ | |
1135 | Show whether GDB will quit when an %s is detected"), | |
1136 | problem->name); | |
1137 | add_setshow_enum_cmd ("quit", class_maintenance, | |
1138 | internal_problem_modes, | |
1139 | &problem->should_quit, | |
1140 | set_doc, | |
1141 | show_doc, | |
1142 | NULL, /* help_doc */ | |
1143 | NULL, /* setfunc */ | |
1144 | NULL, /* showfunc */ | |
1145 | set_cmd_list, | |
1146 | show_cmd_list); | |
1147 | ||
1eefb858 TT |
1148 | xfree (set_doc); |
1149 | xfree (show_doc); | |
1150 | ||
3c16cced PA |
1151 | set_doc = xstrprintf (_("\ |
1152 | Set whether GDB should create a core file of GDB when %s is detected"), | |
1153 | problem->name); | |
1154 | show_doc = xstrprintf (_("\ | |
1155 | Show whether GDB will create a core file of GDB when %s is detected"), | |
1156 | problem->name); | |
1157 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
1158 | internal_problem_modes, | |
1159 | &problem->should_dump_core, | |
1160 | set_doc, | |
1161 | show_doc, | |
1162 | NULL, /* help_doc */ | |
1163 | NULL, /* setfunc */ | |
1164 | NULL, /* showfunc */ | |
1165 | set_cmd_list, | |
1166 | show_cmd_list); | |
1eefb858 TT |
1167 | |
1168 | xfree (set_doc); | |
1169 | xfree (show_doc); | |
3c16cced PA |
1170 | } |
1171 | ||
c906108c SS |
1172 | /* Print the system error message for errno, and also mention STRING |
1173 | as the file name for which the error was encountered. | |
1174 | Then return to command level. */ | |
1175 | ||
1176 | NORETURN void | |
6972bc8b | 1177 | perror_with_name (const char *string) |
c906108c SS |
1178 | { |
1179 | char *err; | |
1180 | char *combined; | |
1181 | ||
1182 | err = safe_strerror (errno); | |
1183 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1184 | strcpy (combined, string); | |
1185 | strcat (combined, ": "); | |
1186 | strcat (combined, err); | |
1187 | ||
1188 | /* I understand setting these is a matter of taste. Still, some people | |
1189 | may clear errno but not know about bfd_error. Doing this here is not | |
1190 | unreasonable. */ | |
1191 | bfd_set_error (bfd_error_no_error); | |
1192 | errno = 0; | |
1193 | ||
8a3fe4f8 | 1194 | error (_("%s."), combined); |
c906108c SS |
1195 | } |
1196 | ||
1197 | /* Print the system error message for ERRCODE, and also mention STRING | |
1198 | as the file name for which the error was encountered. */ | |
1199 | ||
1200 | void | |
6972bc8b | 1201 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
1202 | { |
1203 | char *err; | |
1204 | char *combined; | |
1205 | ||
1206 | err = safe_strerror (errcode); | |
1207 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1208 | strcpy (combined, string); | |
1209 | strcat (combined, ": "); | |
1210 | strcat (combined, err); | |
1211 | ||
1212 | /* We want anything which was printed on stdout to come out first, before | |
1213 | this message. */ | |
1214 | gdb_flush (gdb_stdout); | |
1215 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
1216 | } | |
1217 | ||
1218 | /* Control C eventually causes this to be called, at a convenient time. */ | |
1219 | ||
1220 | void | |
fba45db2 | 1221 | quit (void) |
c906108c | 1222 | { |
7be570e7 JM |
1223 | #ifdef __MSDOS__ |
1224 | /* No steenking SIGINT will ever be coming our way when the | |
1225 | program is resumed. Don't lie. */ | |
e06e2353 | 1226 | fatal ("Quit"); |
7be570e7 | 1227 | #else |
c906108c | 1228 | if (job_control |
8731e58e AC |
1229 | /* If there is no terminal switching for this target, then we can't |
1230 | possibly get screwed by the lack of job control. */ | |
c906108c | 1231 | || current_target.to_terminal_ours == NULL) |
e06e2353 | 1232 | fatal ("Quit"); |
c906108c | 1233 | else |
e06e2353 | 1234 | fatal ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 1235 | #endif |
c906108c SS |
1236 | } |
1237 | ||
c906108c | 1238 | \f |
c906108c SS |
1239 | /* Called when a memory allocation fails, with the number of bytes of |
1240 | memory requested in SIZE. */ | |
1241 | ||
1242 | NORETURN void | |
fba45db2 | 1243 | nomem (long size) |
c906108c SS |
1244 | { |
1245 | if (size > 0) | |
1246 | { | |
8e65ff28 | 1247 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 1248 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 1249 | size); |
c906108c SS |
1250 | } |
1251 | else | |
1252 | { | |
e2e0b3e5 | 1253 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
1254 | } |
1255 | } | |
1256 | ||
c0e61796 AC |
1257 | /* The xmalloc() (libiberty.h) family of memory management routines. |
1258 | ||
1259 | These are like the ISO-C malloc() family except that they implement | |
1260 | consistent semantics and guard against typical memory management | |
7936743b | 1261 | problems. */ |
c0e61796 AC |
1262 | |
1263 | /* NOTE: These are declared using PTR to ensure consistency with | |
1264 | "libiberty.h". xfree() is GDB local. */ | |
1265 | ||
5ac79d78 | 1266 | PTR /* ARI: PTR */ |
c0e61796 AC |
1267 | xmalloc (size_t size) |
1268 | { | |
7936743b AC |
1269 | void *val; |
1270 | ||
1271 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1272 | semantics. It never returns NULL. */ | |
1273 | if (size == 0) | |
1274 | size = 1; | |
1275 | ||
5ac79d78 | 1276 | val = malloc (size); /* ARI: malloc */ |
7936743b AC |
1277 | if (val == NULL) |
1278 | nomem (size); | |
1279 | ||
1280 | return (val); | |
c0e61796 | 1281 | } |
c906108c | 1282 | |
5b90c7b5 AC |
1283 | void * |
1284 | xzalloc (size_t size) | |
1285 | { | |
1286 | return xcalloc (1, size); | |
1287 | } | |
1288 | ||
5ac79d78 PM |
1289 | PTR /* ARI: PTR */ |
1290 | xrealloc (PTR ptr, size_t size) /* ARI: PTR */ | |
c906108c | 1291 | { |
0efffb96 AC |
1292 | void *val; |
1293 | ||
1294 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1295 | semantics. It never returns NULL. */ | |
1296 | if (size == 0) | |
1297 | size = 1; | |
1298 | ||
1299 | if (ptr != NULL) | |
5ac79d78 | 1300 | val = realloc (ptr, size); /* ARI: realloc */ |
0efffb96 | 1301 | else |
5ac79d78 | 1302 | val = malloc (size); /* ARI: malloc */ |
0efffb96 AC |
1303 | if (val == NULL) |
1304 | nomem (size); | |
1305 | ||
1306 | return (val); | |
c906108c | 1307 | } |
b8c9b27d | 1308 | |
5ac79d78 | 1309 | PTR /* ARI: PTR */ |
c0e61796 AC |
1310 | xcalloc (size_t number, size_t size) |
1311 | { | |
aa2ee5f6 AC |
1312 | void *mem; |
1313 | ||
1314 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1315 | semantics. It never returns NULL. */ | |
1316 | if (number == 0 || size == 0) | |
1317 | { | |
1318 | number = 1; | |
1319 | size = 1; | |
1320 | } | |
1321 | ||
5ac79d78 | 1322 | mem = calloc (number, size); /* ARI: xcalloc */ |
aa2ee5f6 AC |
1323 | if (mem == NULL) |
1324 | nomem (number * size); | |
1325 | ||
1326 | return mem; | |
c0e61796 | 1327 | } |
b8c9b27d KB |
1328 | |
1329 | void | |
1330 | xfree (void *ptr) | |
1331 | { | |
2dc74dc1 | 1332 | if (ptr != NULL) |
5ac79d78 | 1333 | free (ptr); /* ARI: free */ |
b8c9b27d | 1334 | } |
c906108c | 1335 | \f |
c5aa993b | 1336 | |
76995688 AC |
1337 | /* Like asprintf/vasprintf but get an internal_error if the call |
1338 | fails. */ | |
1339 | ||
9ebf4acf AC |
1340 | char * |
1341 | xstrprintf (const char *format, ...) | |
1342 | { | |
1343 | char *ret; | |
1344 | va_list args; | |
1345 | va_start (args, format); | |
e623b504 | 1346 | ret = xstrvprintf (format, args); |
9ebf4acf AC |
1347 | va_end (args); |
1348 | return ret; | |
1349 | } | |
1350 | ||
76995688 AC |
1351 | void |
1352 | xasprintf (char **ret, const char *format, ...) | |
1353 | { | |
1354 | va_list args; | |
1355 | va_start (args, format); | |
e623b504 | 1356 | (*ret) = xstrvprintf (format, args); |
76995688 AC |
1357 | va_end (args); |
1358 | } | |
1359 | ||
1360 | void | |
1361 | xvasprintf (char **ret, const char *format, va_list ap) | |
1362 | { | |
a552edd9 | 1363 | (*ret) = xstrvprintf (format, ap); |
76995688 AC |
1364 | } |
1365 | ||
e623b504 AC |
1366 | char * |
1367 | xstrvprintf (const char *format, va_list ap) | |
1368 | { | |
1369 | char *ret = NULL; | |
1370 | int status = vasprintf (&ret, format, ap); | |
46e9880c DJ |
1371 | /* NULL is returned when there was a memory allocation problem, or |
1372 | any other error (for instance, a bad format string). A negative | |
1373 | status (the printed length) with a non-NULL buffer should never | |
1374 | happen, but just to be sure. */ | |
1375 | if (ret == NULL || status < 0) | |
1376 | internal_error (__FILE__, __LINE__, _("vasprintf call failed")); | |
e623b504 AC |
1377 | return ret; |
1378 | } | |
76995688 | 1379 | |
bde2058d MK |
1380 | int |
1381 | xsnprintf (char *str, size_t size, const char *format, ...) | |
1382 | { | |
1383 | va_list args; | |
1384 | int ret; | |
1385 | ||
1386 | va_start (args, format); | |
1387 | ret = vsnprintf (str, size, format, args); | |
1388 | gdb_assert (ret < size); | |
1389 | va_end (args); | |
1390 | ||
1391 | return ret; | |
1392 | } | |
1393 | ||
c906108c SS |
1394 | /* My replacement for the read system call. |
1395 | Used like `read' but keeps going if `read' returns too soon. */ | |
1396 | ||
1397 | int | |
fba45db2 | 1398 | myread (int desc, char *addr, int len) |
c906108c | 1399 | { |
52f0bd74 | 1400 | int val; |
c906108c SS |
1401 | int orglen = len; |
1402 | ||
1403 | while (len > 0) | |
1404 | { | |
1405 | val = read (desc, addr, len); | |
1406 | if (val < 0) | |
1407 | return val; | |
1408 | if (val == 0) | |
1409 | return orglen - len; | |
1410 | len -= val; | |
1411 | addr += val; | |
1412 | } | |
1413 | return orglen; | |
1414 | } | |
1415 | \f | |
1416 | /* Make a copy of the string at PTR with SIZE characters | |
1417 | (and add a null character at the end in the copy). | |
1418 | Uses malloc to get the space. Returns the address of the copy. */ | |
1419 | ||
1420 | char * | |
5565b556 | 1421 | savestring (const char *ptr, size_t size) |
c906108c | 1422 | { |
52f0bd74 | 1423 | char *p = (char *) xmalloc (size + 1); |
c906108c SS |
1424 | memcpy (p, ptr, size); |
1425 | p[size] = 0; | |
1426 | return p; | |
1427 | } | |
1428 | ||
c906108c | 1429 | void |
aa1ee363 | 1430 | print_spaces (int n, struct ui_file *file) |
c906108c | 1431 | { |
392a587b | 1432 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1433 | } |
1434 | ||
1435 | /* Print a host address. */ | |
1436 | ||
1437 | void | |
ac16bf07 | 1438 | gdb_print_host_address (const void *addr, struct ui_file *stream) |
c906108c | 1439 | { |
ea8992ce | 1440 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 1441 | } |
c906108c | 1442 | \f |
c5aa993b | 1443 | |
981c7f5a | 1444 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 1445 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
1446 | answer is yes, or default the answer to the specified default |
1447 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
1448 | default answer, or '\0' for no default. | |
cbdeadca JJ |
1449 | CTLSTR is the control string and should end in "? ". It should |
1450 | not say how to answer, because we do that. | |
1451 | ARGS are the arguments passed along with the CTLSTR argument to | |
1452 | printf. */ | |
1453 | ||
bee0189a | 1454 | static int ATTR_FORMAT (printf, 1, 0) |
cbdeadca JJ |
1455 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
1456 | { | |
1457 | int answer; | |
1458 | int ans2; | |
1459 | int retval; | |
1460 | int def_value; | |
1461 | char def_answer, not_def_answer; | |
981c7f5a | 1462 | char *y_string, *n_string, *question; |
cbdeadca JJ |
1463 | |
1464 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
1465 | if (defchar == '\0') |
1466 | { | |
1467 | def_value = 1; | |
1468 | def_answer = 'Y'; | |
1469 | not_def_answer = 'N'; | |
1470 | y_string = "y"; | |
1471 | n_string = "n"; | |
1472 | } | |
1473 | else if (defchar == 'y') | |
cbdeadca JJ |
1474 | { |
1475 | def_value = 1; | |
1476 | def_answer = 'Y'; | |
1477 | not_def_answer = 'N'; | |
1478 | y_string = "[y]"; | |
1479 | n_string = "n"; | |
1480 | } | |
1481 | else | |
1482 | { | |
1483 | def_value = 0; | |
1484 | def_answer = 'N'; | |
1485 | not_def_answer = 'Y'; | |
1486 | y_string = "y"; | |
1487 | n_string = "[n]"; | |
1488 | } | |
1489 | ||
981c7f5a | 1490 | /* Automatically answer the default value if the user did not want |
a502cf95 NR |
1491 | prompts or the command was issued with the server prefix. */ |
1492 | if (! caution || server_command) | |
981c7f5a DJ |
1493 | return def_value; |
1494 | ||
1495 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 1496 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
1497 | way, important error messages don't get lost when talking to GDB |
1498 | over a pipe. */ | |
1499 | if (! input_from_terminal_p ()) | |
1500 | { | |
1501 | wrap_here (""); | |
1502 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1503 | ||
1504 | printf_filtered (_("(%s or %s) [answered %c; input not from terminal]\n"), | |
1505 | y_string, n_string, def_answer); | |
1506 | gdb_flush (gdb_stdout); | |
1507 | ||
1508 | return def_value; | |
1509 | } | |
1510 | ||
9a4105ab | 1511 | if (deprecated_query_hook) |
cbdeadca | 1512 | { |
9a4105ab | 1513 | return deprecated_query_hook (ctlstr, args); |
cbdeadca JJ |
1514 | } |
1515 | ||
981c7f5a DJ |
1516 | /* Format the question outside of the loop, to avoid reusing args. */ |
1517 | question = xstrvprintf (ctlstr, args); | |
1518 | ||
cbdeadca JJ |
1519 | while (1) |
1520 | { | |
1521 | wrap_here (""); /* Flush any buffered output */ | |
1522 | gdb_flush (gdb_stdout); | |
1523 | ||
1524 | if (annotation_level > 1) | |
a3f17187 | 1525 | printf_filtered (("\n\032\032pre-query\n")); |
cbdeadca | 1526 | |
981c7f5a | 1527 | fputs_filtered (question, gdb_stdout); |
a3f17187 | 1528 | printf_filtered (_("(%s or %s) "), y_string, n_string); |
cbdeadca JJ |
1529 | |
1530 | if (annotation_level > 1) | |
a3f17187 | 1531 | printf_filtered (("\n\032\032query\n")); |
cbdeadca JJ |
1532 | |
1533 | wrap_here (""); | |
1534 | gdb_flush (gdb_stdout); | |
1535 | ||
1536 | answer = fgetc (stdin); | |
8626589c JB |
1537 | |
1538 | /* We expect fgetc to block until a character is read. But | |
1539 | this may not be the case if the terminal was opened with | |
1540 | the NONBLOCK flag. In that case, if there is nothing to | |
1541 | read on stdin, fgetc returns EOF, but also sets the error | |
1542 | condition flag on stdin and errno to EAGAIN. With a true | |
1543 | EOF, stdin's error condition flag is not set. | |
1544 | ||
1545 | A situation where this behavior was observed is a pseudo | |
1546 | terminal on AIX. */ | |
1547 | while (answer == EOF && ferror (stdin) && errno == EAGAIN) | |
1548 | { | |
1549 | /* Not a real EOF. Wait a little while and try again until | |
1550 | we read something. */ | |
1551 | clearerr (stdin); | |
1552 | gdb_usleep (10000); | |
1553 | answer = fgetc (stdin); | |
1554 | } | |
1555 | ||
cbdeadca JJ |
1556 | clearerr (stdin); /* in case of C-d */ |
1557 | if (answer == EOF) /* C-d */ | |
1558 | { | |
fa3fd85b | 1559 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
1560 | retval = def_value; |
1561 | break; | |
1562 | } | |
1563 | /* Eat rest of input line, to EOF or newline */ | |
1564 | if (answer != '\n') | |
1565 | do | |
1566 | { | |
1567 | ans2 = fgetc (stdin); | |
1568 | clearerr (stdin); | |
1569 | } | |
1570 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); | |
1571 | ||
1572 | if (answer >= 'a') | |
1573 | answer -= 040; | |
1574 | /* Check answer. For the non-default, the user must specify | |
1575 | the non-default explicitly. */ | |
1576 | if (answer == not_def_answer) | |
1577 | { | |
1578 | retval = !def_value; | |
1579 | break; | |
1580 | } | |
981c7f5a DJ |
1581 | /* Otherwise, if a default was specified, the user may either |
1582 | specify the required input or have it default by entering | |
1583 | nothing. */ | |
1584 | if (answer == def_answer | |
1585 | || (defchar != '\0' && | |
1586 | (answer == '\n' || answer == '\r' || answer == EOF))) | |
cbdeadca JJ |
1587 | { |
1588 | retval = def_value; | |
1589 | break; | |
1590 | } | |
1591 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 1592 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
1593 | y_string, n_string); |
1594 | } | |
1595 | ||
981c7f5a | 1596 | xfree (question); |
cbdeadca | 1597 | if (annotation_level > 1) |
a3f17187 | 1598 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
1599 | return retval; |
1600 | } | |
1601 | \f | |
1602 | ||
1603 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1604 | answer is yes, or 0 if answer is defaulted. | |
1605 | Takes three args which are given to printf to print the question. | |
1606 | The first, a control string, should end in "? ". | |
1607 | It should not say how to answer, because we do that. */ | |
1608 | ||
1609 | int | |
1610 | nquery (const char *ctlstr, ...) | |
1611 | { | |
1612 | va_list args; | |
1613 | ||
1614 | va_start (args, ctlstr); | |
1615 | return defaulted_query (ctlstr, 'n', args); | |
1616 | va_end (args); | |
1617 | } | |
1618 | ||
1619 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1620 | answer is yes, or 1 if answer is defaulted. | |
1621 | Takes three args which are given to printf to print the question. | |
1622 | The first, a control string, should end in "? ". | |
1623 | It should not say how to answer, because we do that. */ | |
1624 | ||
1625 | int | |
1626 | yquery (const char *ctlstr, ...) | |
1627 | { | |
1628 | va_list args; | |
1629 | ||
1630 | va_start (args, ctlstr); | |
1631 | return defaulted_query (ctlstr, 'y', args); | |
1632 | va_end (args); | |
1633 | } | |
1634 | ||
981c7f5a DJ |
1635 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
1636 | Takes three args which are given to printf to print the question. | |
1637 | The first, a control string, should end in "? ". | |
1638 | It should not say how to answer, because we do that. */ | |
1639 | ||
1640 | int | |
1641 | query (const char *ctlstr, ...) | |
1642 | { | |
1643 | va_list args; | |
1644 | ||
1645 | va_start (args, ctlstr); | |
1646 | return defaulted_query (ctlstr, '\0', args); | |
1647 | va_end (args); | |
1648 | } | |
1649 | ||
6c7a06a3 TT |
1650 | /* A helper for parse_escape that converts a host character to a |
1651 | target character. C is the host character. If conversion is | |
1652 | possible, then the target character is stored in *TARGET_C and the | |
1653 | function returns 1. Otherwise, the function returns 0. */ | |
1654 | ||
1655 | static int | |
1656 | host_char_to_target (int c, int *target_c) | |
234b45d4 | 1657 | { |
6c7a06a3 TT |
1658 | struct obstack host_data; |
1659 | char the_char = c; | |
1660 | struct cleanup *cleanups; | |
1661 | int result = 0; | |
234b45d4 | 1662 | |
6c7a06a3 TT |
1663 | obstack_init (&host_data); |
1664 | cleanups = make_cleanup_obstack_free (&host_data); | |
234b45d4 | 1665 | |
6c7a06a3 TT |
1666 | convert_between_encodings (target_charset (), host_charset (), |
1667 | &the_char, 1, 1, &host_data, translit_none); | |
1668 | ||
1669 | if (obstack_object_size (&host_data) == 1) | |
1670 | { | |
1671 | result = 1; | |
1672 | *target_c = *(char *) obstack_base (&host_data); | |
1673 | } | |
1674 | ||
1675 | do_cleanups (cleanups); | |
1676 | return result; | |
234b45d4 KB |
1677 | } |
1678 | ||
c906108c SS |
1679 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1680 | containing a pointer to the string to parse. That pointer | |
1681 | should point to the character after the \. That pointer | |
1682 | is updated past the characters we use. The value of the | |
1683 | escape sequence is returned. | |
1684 | ||
1685 | A negative value means the sequence \ newline was seen, | |
1686 | which is supposed to be equivalent to nothing at all. | |
1687 | ||
1688 | If \ is followed by a null character, we return a negative | |
1689 | value and leave the string pointer pointing at the null character. | |
1690 | ||
1691 | If \ is followed by 000, we return 0 and leave the string pointer | |
1692 | after the zeros. A value of 0 does not mean end of string. */ | |
1693 | ||
1694 | int | |
fba45db2 | 1695 | parse_escape (char **string_ptr) |
c906108c | 1696 | { |
27e3013d | 1697 | int target_char = -2; /* initialize to avoid GCC warnings */ |
52f0bd74 | 1698 | int c = *(*string_ptr)++; |
6c7a06a3 TT |
1699 | switch (c) |
1700 | { | |
8731e58e AC |
1701 | case '\n': |
1702 | return -2; | |
1703 | case 0: | |
1704 | (*string_ptr)--; | |
1705 | return 0; | |
8731e58e AC |
1706 | |
1707 | case '0': | |
1708 | case '1': | |
1709 | case '2': | |
1710 | case '3': | |
1711 | case '4': | |
1712 | case '5': | |
1713 | case '6': | |
1714 | case '7': | |
1715 | { | |
6c7a06a3 | 1716 | int i = host_hex_value (c); |
aa1ee363 | 1717 | int count = 0; |
8731e58e AC |
1718 | while (++count < 3) |
1719 | { | |
5cb316ef | 1720 | c = (**string_ptr); |
6c7a06a3 | 1721 | if (isdigit (c) && c != '8' && c != '9') |
8731e58e | 1722 | { |
5cb316ef | 1723 | (*string_ptr)++; |
8731e58e | 1724 | i *= 8; |
6c7a06a3 | 1725 | i += host_hex_value (c); |
8731e58e AC |
1726 | } |
1727 | else | |
1728 | { | |
8731e58e AC |
1729 | break; |
1730 | } | |
1731 | } | |
1732 | return i; | |
1733 | } | |
6c7a06a3 TT |
1734 | |
1735 | case 'a': | |
1736 | c = '\a'; | |
1737 | break; | |
1738 | case 'b': | |
1739 | c = '\b'; | |
1740 | break; | |
1741 | case 'f': | |
1742 | c = '\f'; | |
1743 | break; | |
1744 | case 'n': | |
1745 | c = '\n'; | |
1746 | break; | |
1747 | case 'r': | |
1748 | c = '\r'; | |
1749 | break; | |
1750 | case 't': | |
1751 | c = '\t'; | |
1752 | break; | |
1753 | case 'v': | |
1754 | c = '\v'; | |
1755 | break; | |
1756 | ||
1757 | default: | |
1758 | break; | |
1759 | } | |
1760 | ||
1761 | if (!host_char_to_target (c, &target_char)) | |
1762 | error | |
1763 | ("The escape sequence `\%c' is equivalent to plain `%c', which" | |
1764 | " has no equivalent\n" "in the `%s' character set.", c, c, | |
1765 | target_charset ()); | |
1766 | return target_char; | |
c906108c SS |
1767 | } |
1768 | \f | |
1769 | /* Print the character C on STREAM as part of the contents of a literal | |
1770 | string whose delimiter is QUOTER. Note that this routine should only | |
1771 | be call for printing things which are independent of the language | |
1772 | of the program being debugged. */ | |
1773 | ||
43e526b9 | 1774 | static void |
74f832da | 1775 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
bee0189a DJ |
1776 | void (*do_fprintf) (struct ui_file *, const char *, ...) |
1777 | ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter) | |
c906108c SS |
1778 | { |
1779 | ||
1780 | c &= 0xFF; /* Avoid sign bit follies */ | |
1781 | ||
c5aa993b JM |
1782 | if (c < 0x20 || /* Low control chars */ |
1783 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1784 | (sevenbit_strings && c >= 0x80)) | |
1785 | { /* high order bit set */ | |
1786 | switch (c) | |
1787 | { | |
1788 | case '\n': | |
43e526b9 | 1789 | do_fputs ("\\n", stream); |
c5aa993b JM |
1790 | break; |
1791 | case '\b': | |
43e526b9 | 1792 | do_fputs ("\\b", stream); |
c5aa993b JM |
1793 | break; |
1794 | case '\t': | |
43e526b9 | 1795 | do_fputs ("\\t", stream); |
c5aa993b JM |
1796 | break; |
1797 | case '\f': | |
43e526b9 | 1798 | do_fputs ("\\f", stream); |
c5aa993b JM |
1799 | break; |
1800 | case '\r': | |
43e526b9 | 1801 | do_fputs ("\\r", stream); |
c5aa993b JM |
1802 | break; |
1803 | case '\033': | |
43e526b9 | 1804 | do_fputs ("\\e", stream); |
c5aa993b JM |
1805 | break; |
1806 | case '\007': | |
43e526b9 | 1807 | do_fputs ("\\a", stream); |
c5aa993b JM |
1808 | break; |
1809 | default: | |
43e526b9 | 1810 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1811 | break; |
1812 | } | |
1813 | } | |
1814 | else | |
1815 | { | |
1816 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1817 | do_fputs ("\\", stream); |
1818 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1819 | } |
c906108c | 1820 | } |
43e526b9 JM |
1821 | |
1822 | /* Print the character C on STREAM as part of the contents of a | |
1823 | literal string whose delimiter is QUOTER. Note that these routines | |
1824 | should only be call for printing things which are independent of | |
1825 | the language of the program being debugged. */ | |
1826 | ||
1827 | void | |
fba45db2 | 1828 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1829 | { |
1830 | while (*str) | |
1831 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1832 | } | |
1833 | ||
1834 | void | |
fba45db2 | 1835 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1836 | { |
1837 | while (*str) | |
1838 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1839 | } | |
1840 | ||
0876f84a DJ |
1841 | void |
1842 | fputstrn_filtered (const char *str, int n, int quoter, | |
1843 | struct ui_file *stream) | |
1844 | { | |
1845 | int i; | |
1846 | for (i = 0; i < n; i++) | |
1847 | printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter); | |
1848 | } | |
1849 | ||
43e526b9 | 1850 | void |
8731e58e AC |
1851 | fputstrn_unfiltered (const char *str, int n, int quoter, |
1852 | struct ui_file *stream) | |
43e526b9 JM |
1853 | { |
1854 | int i; | |
1855 | for (i = 0; i < n; i++) | |
1856 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1857 | } | |
c906108c | 1858 | \f |
c5aa993b | 1859 | |
c906108c SS |
1860 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1861 | static unsigned int lines_per_page; | |
920d2a44 AC |
1862 | static void |
1863 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1864 | struct cmd_list_element *c, const char *value) | |
1865 | { | |
1866 | fprintf_filtered (file, _("\ | |
1867 | Number of lines gdb thinks are in a page is %s.\n"), | |
1868 | value); | |
1869 | } | |
eb0d3137 | 1870 | |
cbfbd72a | 1871 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1872 | static unsigned int chars_per_line; |
920d2a44 AC |
1873 | static void |
1874 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1875 | struct cmd_list_element *c, const char *value) | |
1876 | { | |
1877 | fprintf_filtered (file, _("\ | |
1878 | Number of characters gdb thinks are in a line is %s.\n"), | |
1879 | value); | |
1880 | } | |
eb0d3137 | 1881 | |
c906108c SS |
1882 | /* Current count of lines printed on this page, chars on this line. */ |
1883 | static unsigned int lines_printed, chars_printed; | |
1884 | ||
1885 | /* Buffer and start column of buffered text, for doing smarter word- | |
1886 | wrapping. When someone calls wrap_here(), we start buffering output | |
1887 | that comes through fputs_filtered(). If we see a newline, we just | |
1888 | spit it out and forget about the wrap_here(). If we see another | |
1889 | wrap_here(), we spit it out and remember the newer one. If we see | |
1890 | the end of the line, we spit out a newline, the indent, and then | |
1891 | the buffered output. */ | |
1892 | ||
1893 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1894 | are waiting to be output (they have already been counted in chars_printed). | |
1895 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1896 | static char *wrap_buffer; | |
1897 | ||
1898 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1899 | static char *wrap_pointer; | |
1900 | ||
1901 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1902 | is non-zero. */ | |
1903 | static char *wrap_indent; | |
1904 | ||
1905 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1906 | is not in effect. */ | |
1907 | static int wrap_column; | |
c906108c | 1908 | \f |
c5aa993b | 1909 | |
eb0d3137 MK |
1910 | /* Inialize the number of lines per page and chars per line. */ |
1911 | ||
c906108c | 1912 | void |
fba45db2 | 1913 | init_page_info (void) |
c906108c SS |
1914 | { |
1915 | #if defined(TUI) | |
5ecb1806 | 1916 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1917 | #endif |
1918 | { | |
eb0d3137 | 1919 | int rows, cols; |
c906108c | 1920 | |
ec145965 EZ |
1921 | #if defined(__GO32__) |
1922 | rows = ScreenRows (); | |
1923 | cols = ScreenCols (); | |
1924 | lines_per_page = rows; | |
1925 | chars_per_line = cols; | |
1926 | #else | |
eb0d3137 MK |
1927 | /* Make sure Readline has initialized its terminal settings. */ |
1928 | rl_reset_terminal (NULL); | |
c906108c | 1929 | |
eb0d3137 MK |
1930 | /* Get the screen size from Readline. */ |
1931 | rl_get_screen_size (&rows, &cols); | |
1932 | lines_per_page = rows; | |
1933 | chars_per_line = cols; | |
c906108c | 1934 | |
eb0d3137 MK |
1935 | /* Readline should have fetched the termcap entry for us. */ |
1936 | if (tgetnum ("li") < 0 || getenv ("EMACS")) | |
1937 | { | |
1938 | /* The number of lines per page is not mentioned in the | |
1939 | terminal description. This probably means that paging is | |
1940 | not useful (e.g. emacs shell window), so disable paging. */ | |
1941 | lines_per_page = UINT_MAX; | |
1942 | } | |
c906108c | 1943 | |
eb0d3137 | 1944 | /* FIXME: Get rid of this junk. */ |
c906108c | 1945 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) |
c906108c SS |
1946 | SIGWINCH_HANDLER (SIGWINCH); |
1947 | #endif | |
eb0d3137 | 1948 | |
c906108c | 1949 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1950 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1951 | lines_per_page = UINT_MAX; |
eb0d3137 | 1952 | #endif |
ec145965 | 1953 | } |
eb0d3137 MK |
1954 | |
1955 | set_screen_size (); | |
c5aa993b | 1956 | set_width (); |
c906108c SS |
1957 | } |
1958 | ||
eb0d3137 MK |
1959 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1960 | ||
1961 | static void | |
1962 | set_screen_size (void) | |
1963 | { | |
1964 | int rows = lines_per_page; | |
1965 | int cols = chars_per_line; | |
1966 | ||
1967 | if (rows <= 0) | |
1968 | rows = INT_MAX; | |
1969 | ||
1970 | if (cols <= 0) | |
0caa462c | 1971 | cols = INT_MAX; |
eb0d3137 MK |
1972 | |
1973 | /* Update Readline's idea of the terminal size. */ | |
1974 | rl_set_screen_size (rows, cols); | |
1975 | } | |
1976 | ||
1977 | /* Reinitialize WRAP_BUFFER according to the current value of | |
1978 | CHARS_PER_LINE. */ | |
1979 | ||
c906108c | 1980 | static void |
fba45db2 | 1981 | set_width (void) |
c906108c SS |
1982 | { |
1983 | if (chars_per_line == 0) | |
c5aa993b | 1984 | init_page_info (); |
c906108c SS |
1985 | |
1986 | if (!wrap_buffer) | |
1987 | { | |
1988 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1989 | wrap_buffer[0] = '\0'; | |
1990 | } | |
1991 | else | |
1992 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 1993 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
1994 | } |
1995 | ||
c5aa993b | 1996 | static void |
fba45db2 | 1997 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1998 | { |
eb0d3137 | 1999 | set_screen_size (); |
c906108c SS |
2000 | set_width (); |
2001 | } | |
2002 | ||
eb0d3137 MK |
2003 | static void |
2004 | set_height_command (char *args, int from_tty, struct cmd_list_element *c) | |
2005 | { | |
2006 | set_screen_size (); | |
2007 | } | |
2008 | ||
c906108c SS |
2009 | /* Wait, so the user can read what's on the screen. Prompt the user |
2010 | to continue by pressing RETURN. */ | |
2011 | ||
2012 | static void | |
fba45db2 | 2013 | prompt_for_continue (void) |
c906108c SS |
2014 | { |
2015 | char *ignore; | |
2016 | char cont_prompt[120]; | |
2017 | ||
2018 | if (annotation_level > 1) | |
a3f17187 | 2019 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
2020 | |
2021 | strcpy (cont_prompt, | |
2022 | "---Type <return> to continue, or q <return> to quit---"); | |
2023 | if (annotation_level > 1) | |
2024 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
2025 | ||
2026 | /* We must do this *before* we call gdb_readline, else it will eventually | |
2027 | call us -- thinking that we're trying to print beyond the end of the | |
2028 | screen. */ | |
2029 | reinitialize_more_filter (); | |
2030 | ||
2031 | immediate_quit++; | |
2032 | /* On a real operating system, the user can quit with SIGINT. | |
2033 | But not on GO32. | |
2034 | ||
2035 | 'q' is provided on all systems so users don't have to change habits | |
2036 | from system to system, and because telling them what to do in | |
2037 | the prompt is more user-friendly than expecting them to think of | |
2038 | SIGINT. */ | |
2039 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
2040 | whereas control-C to gdb_readline will cause the user to get dumped | |
2041 | out to DOS. */ | |
b4f5539f | 2042 | ignore = gdb_readline_wrapper (cont_prompt); |
c906108c SS |
2043 | |
2044 | if (annotation_level > 1) | |
a3f17187 | 2045 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c SS |
2046 | |
2047 | if (ignore) | |
2048 | { | |
2049 | char *p = ignore; | |
2050 | while (*p == ' ' || *p == '\t') | |
2051 | ++p; | |
2052 | if (p[0] == 'q') | |
362646f5 | 2053 | async_request_quit (0); |
b8c9b27d | 2054 | xfree (ignore); |
c906108c SS |
2055 | } |
2056 | immediate_quit--; | |
2057 | ||
2058 | /* Now we have to do this again, so that GDB will know that it doesn't | |
2059 | need to save the ---Type <return>--- line at the top of the screen. */ | |
2060 | reinitialize_more_filter (); | |
2061 | ||
2062 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ | |
2063 | } | |
2064 | ||
2065 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
2066 | ||
2067 | void | |
fba45db2 | 2068 | reinitialize_more_filter (void) |
c906108c SS |
2069 | { |
2070 | lines_printed = 0; | |
2071 | chars_printed = 0; | |
2072 | } | |
2073 | ||
2074 | /* Indicate that if the next sequence of characters overflows the line, | |
2075 | a newline should be inserted here rather than when it hits the end. | |
2076 | If INDENT is non-null, it is a string to be printed to indent the | |
2077 | wrapped part on the next line. INDENT must remain accessible until | |
2078 | the next call to wrap_here() or until a newline is printed through | |
2079 | fputs_filtered(). | |
2080 | ||
2081 | If the line is already overfull, we immediately print a newline and | |
2082 | the indentation, and disable further wrapping. | |
2083 | ||
2084 | If we don't know the width of lines, but we know the page height, | |
2085 | we must not wrap words, but should still keep track of newlines | |
2086 | that were explicitly printed. | |
2087 | ||
2088 | INDENT should not contain tabs, as that will mess up the char count | |
2089 | on the next line. FIXME. | |
2090 | ||
2091 | This routine is guaranteed to force out any output which has been | |
2092 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
2093 | used to force out output from the wrap_buffer. */ | |
2094 | ||
2095 | void | |
fba45db2 | 2096 | wrap_here (char *indent) |
c906108c SS |
2097 | { |
2098 | /* This should have been allocated, but be paranoid anyway. */ | |
2099 | if (!wrap_buffer) | |
e2e0b3e5 | 2100 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
2101 | |
2102 | if (wrap_buffer[0]) | |
2103 | { | |
2104 | *wrap_pointer = '\0'; | |
2105 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
2106 | } | |
2107 | wrap_pointer = wrap_buffer; | |
2108 | wrap_buffer[0] = '\0'; | |
c5aa993b | 2109 | if (chars_per_line == UINT_MAX) /* No line overflow checking */ |
c906108c SS |
2110 | { |
2111 | wrap_column = 0; | |
2112 | } | |
2113 | else if (chars_printed >= chars_per_line) | |
2114 | { | |
2115 | puts_filtered ("\n"); | |
2116 | if (indent != NULL) | |
2117 | puts_filtered (indent); | |
2118 | wrap_column = 0; | |
2119 | } | |
2120 | else | |
2121 | { | |
2122 | wrap_column = chars_printed; | |
2123 | if (indent == NULL) | |
2124 | wrap_indent = ""; | |
2125 | else | |
2126 | wrap_indent = indent; | |
2127 | } | |
2128 | } | |
2129 | ||
4a351cef AF |
2130 | /* Print input string to gdb_stdout, filtered, with wrap, |
2131 | arranging strings in columns of n chars. String can be | |
2132 | right or left justified in the column. Never prints | |
2133 | trailing spaces. String should never be longer than | |
2134 | width. FIXME: this could be useful for the EXAMINE | |
2135 | command, which currently doesn't tabulate very well */ | |
2136 | ||
2137 | void | |
2138 | puts_filtered_tabular (char *string, int width, int right) | |
2139 | { | |
2140 | int spaces = 0; | |
2141 | int stringlen; | |
2142 | char *spacebuf; | |
2143 | ||
2144 | gdb_assert (chars_per_line > 0); | |
2145 | if (chars_per_line == UINT_MAX) | |
2146 | { | |
2147 | fputs_filtered (string, gdb_stdout); | |
2148 | fputs_filtered ("\n", gdb_stdout); | |
2149 | return; | |
2150 | } | |
2151 | ||
2152 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
2153 | fputs_filtered ("\n", gdb_stdout); | |
2154 | ||
2155 | if (width >= chars_per_line) | |
2156 | width = chars_per_line - 1; | |
2157 | ||
2158 | stringlen = strlen (string); | |
2159 | ||
2160 | if (chars_printed > 0) | |
2161 | spaces = width - (chars_printed - 1) % width - 1; | |
2162 | if (right) | |
2163 | spaces += width - stringlen; | |
2164 | ||
2165 | spacebuf = alloca (spaces + 1); | |
2166 | spacebuf[spaces] = '\0'; | |
2167 | while (spaces--) | |
2168 | spacebuf[spaces] = ' '; | |
2169 | ||
2170 | fputs_filtered (spacebuf, gdb_stdout); | |
2171 | fputs_filtered (string, gdb_stdout); | |
2172 | } | |
2173 | ||
2174 | ||
c906108c SS |
2175 | /* Ensure that whatever gets printed next, using the filtered output |
2176 | commands, starts at the beginning of the line. I.E. if there is | |
2177 | any pending output for the current line, flush it and start a new | |
2178 | line. Otherwise do nothing. */ | |
2179 | ||
2180 | void | |
fba45db2 | 2181 | begin_line (void) |
c906108c SS |
2182 | { |
2183 | if (chars_printed > 0) | |
2184 | { | |
2185 | puts_filtered ("\n"); | |
2186 | } | |
2187 | } | |
2188 | ||
ac9a91a7 | 2189 | |
c906108c SS |
2190 | /* Like fputs but if FILTER is true, pause after every screenful. |
2191 | ||
2192 | Regardless of FILTER can wrap at points other than the final | |
2193 | character of a line. | |
2194 | ||
2195 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
2196 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
2197 | anything. | |
2198 | ||
2199 | Note that a longjmp to top level may occur in this routine (only if | |
2200 | FILTER is true) (since prompt_for_continue may do so) so this | |
2201 | routine should not be called when cleanups are not in place. */ | |
2202 | ||
2203 | static void | |
fba45db2 KB |
2204 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
2205 | int filter) | |
c906108c SS |
2206 | { |
2207 | const char *lineptr; | |
2208 | ||
2209 | if (linebuffer == 0) | |
2210 | return; | |
2211 | ||
2212 | /* Don't do any filtering if it is disabled. */ | |
390a8aca PA |
2213 | if (stream != gdb_stdout |
2214 | || !pagination_enabled | |
2215 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) | |
2216 | || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) | |
c906108c SS |
2217 | { |
2218 | fputs_unfiltered (linebuffer, stream); | |
2219 | return; | |
2220 | } | |
2221 | ||
2222 | /* Go through and output each character. Show line extension | |
2223 | when this is necessary; prompt user for new page when this is | |
2224 | necessary. */ | |
c5aa993b | 2225 | |
c906108c SS |
2226 | lineptr = linebuffer; |
2227 | while (*lineptr) | |
2228 | { | |
2229 | /* Possible new page. */ | |
8731e58e | 2230 | if (filter && (lines_printed >= lines_per_page - 1)) |
c906108c SS |
2231 | prompt_for_continue (); |
2232 | ||
2233 | while (*lineptr && *lineptr != '\n') | |
2234 | { | |
2235 | /* Print a single line. */ | |
2236 | if (*lineptr == '\t') | |
2237 | { | |
2238 | if (wrap_column) | |
2239 | *wrap_pointer++ = '\t'; | |
2240 | else | |
2241 | fputc_unfiltered ('\t', stream); | |
2242 | /* Shifting right by 3 produces the number of tab stops | |
2243 | we have already passed, and then adding one and | |
c5aa993b | 2244 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
2245 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
2246 | lineptr++; | |
2247 | } | |
2248 | else | |
2249 | { | |
2250 | if (wrap_column) | |
2251 | *wrap_pointer++ = *lineptr; | |
2252 | else | |
c5aa993b | 2253 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
2254 | chars_printed++; |
2255 | lineptr++; | |
2256 | } | |
c5aa993b | 2257 | |
c906108c SS |
2258 | if (chars_printed >= chars_per_line) |
2259 | { | |
2260 | unsigned int save_chars = chars_printed; | |
2261 | ||
2262 | chars_printed = 0; | |
2263 | lines_printed++; | |
2264 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
2265 | if chars_per_line is right, we probably just overflowed |
2266 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
2267 | if (wrap_column) |
2268 | fputc_unfiltered ('\n', stream); | |
2269 | ||
2270 | /* Possible new page. */ | |
2271 | if (lines_printed >= lines_per_page - 1) | |
2272 | prompt_for_continue (); | |
2273 | ||
2274 | /* Now output indentation and wrapped string */ | |
2275 | if (wrap_column) | |
2276 | { | |
2277 | fputs_unfiltered (wrap_indent, stream); | |
8731e58e | 2278 | *wrap_pointer = '\0'; /* Null-terminate saved stuff */ |
c5aa993b | 2279 | fputs_unfiltered (wrap_buffer, stream); /* and eject it */ |
c906108c SS |
2280 | /* FIXME, this strlen is what prevents wrap_indent from |
2281 | containing tabs. However, if we recurse to print it | |
2282 | and count its chars, we risk trouble if wrap_indent is | |
2283 | longer than (the user settable) chars_per_line. | |
2284 | Note also that this can set chars_printed > chars_per_line | |
2285 | if we are printing a long string. */ | |
2286 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 2287 | + (save_chars - wrap_column); |
c906108c SS |
2288 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
2289 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
2290 | wrap_column = 0; /* And disable fancy wrap */ |
2291 | } | |
c906108c SS |
2292 | } |
2293 | } | |
2294 | ||
2295 | if (*lineptr == '\n') | |
2296 | { | |
2297 | chars_printed = 0; | |
c5aa993b | 2298 | wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */ |
c906108c SS |
2299 | lines_printed++; |
2300 | fputc_unfiltered ('\n', stream); | |
2301 | lineptr++; | |
2302 | } | |
2303 | } | |
2304 | } | |
2305 | ||
2306 | void | |
fba45db2 | 2307 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
2308 | { |
2309 | fputs_maybe_filtered (linebuffer, stream, 1); | |
2310 | } | |
2311 | ||
2312 | int | |
fba45db2 | 2313 | putchar_unfiltered (int c) |
c906108c | 2314 | { |
11cf8741 | 2315 | char buf = c; |
d9fcf2fb | 2316 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
2317 | return c; |
2318 | } | |
2319 | ||
d1f4cff8 AC |
2320 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
2321 | May return nonlocally. */ | |
2322 | ||
2323 | int | |
2324 | putchar_filtered (int c) | |
2325 | { | |
2326 | return fputc_filtered (c, gdb_stdout); | |
2327 | } | |
2328 | ||
c906108c | 2329 | int |
fba45db2 | 2330 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 2331 | { |
11cf8741 | 2332 | char buf = c; |
d9fcf2fb | 2333 | ui_file_write (stream, &buf, 1); |
c906108c SS |
2334 | return c; |
2335 | } | |
2336 | ||
2337 | int | |
fba45db2 | 2338 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
2339 | { |
2340 | char buf[2]; | |
2341 | ||
2342 | buf[0] = c; | |
2343 | buf[1] = 0; | |
2344 | fputs_filtered (buf, stream); | |
2345 | return c; | |
2346 | } | |
2347 | ||
2348 | /* puts_debug is like fputs_unfiltered, except it prints special | |
2349 | characters in printable fashion. */ | |
2350 | ||
2351 | void | |
fba45db2 | 2352 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
2353 | { |
2354 | int ch; | |
2355 | ||
2356 | /* Print prefix and suffix after each line. */ | |
2357 | static int new_line = 1; | |
2358 | static int return_p = 0; | |
2359 | static char *prev_prefix = ""; | |
2360 | static char *prev_suffix = ""; | |
2361 | ||
2362 | if (*string == '\n') | |
2363 | return_p = 0; | |
2364 | ||
2365 | /* If the prefix is changing, print the previous suffix, a new line, | |
2366 | and the new prefix. */ | |
c5aa993b | 2367 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2368 | { |
9846de1b JM |
2369 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2370 | fputs_unfiltered ("\n", gdb_stdlog); | |
2371 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2372 | } |
2373 | ||
2374 | /* Print prefix if we printed a newline during the previous call. */ | |
2375 | if (new_line) | |
2376 | { | |
2377 | new_line = 0; | |
9846de1b | 2378 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2379 | } |
2380 | ||
2381 | prev_prefix = prefix; | |
2382 | prev_suffix = suffix; | |
2383 | ||
2384 | /* Output characters in a printable format. */ | |
2385 | while ((ch = *string++) != '\0') | |
2386 | { | |
2387 | switch (ch) | |
c5aa993b | 2388 | { |
c906108c SS |
2389 | default: |
2390 | if (isprint (ch)) | |
9846de1b | 2391 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2392 | |
2393 | else | |
9846de1b | 2394 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2395 | break; |
2396 | ||
c5aa993b JM |
2397 | case '\\': |
2398 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2399 | break; | |
2400 | case '\b': | |
2401 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2402 | break; | |
2403 | case '\f': | |
2404 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2405 | break; | |
2406 | case '\n': | |
2407 | new_line = 1; | |
2408 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2409 | break; | |
2410 | case '\r': | |
2411 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2412 | break; | |
2413 | case '\t': | |
2414 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2415 | break; | |
2416 | case '\v': | |
2417 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2418 | break; | |
2419 | } | |
c906108c SS |
2420 | |
2421 | return_p = ch == '\r'; | |
2422 | } | |
2423 | ||
2424 | /* Print suffix if we printed a newline. */ | |
2425 | if (new_line) | |
2426 | { | |
9846de1b JM |
2427 | fputs_unfiltered (suffix, gdb_stdlog); |
2428 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2429 | } |
2430 | } | |
2431 | ||
2432 | ||
2433 | /* Print a variable number of ARGS using format FORMAT. If this | |
2434 | information is going to put the amount written (since the last call | |
2435 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2436 | call prompt_for_continue to get the users permision to continue. | |
2437 | ||
2438 | Unlike fprintf, this function does not return a value. | |
2439 | ||
2440 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2441 | fprintf (takes a stream to write on), and printf (the usual). | |
2442 | ||
2443 | Note also that a longjmp to top level may occur in this routine | |
2444 | (since prompt_for_continue may do so) so this routine should not be | |
2445 | called when cleanups are not in place. */ | |
2446 | ||
2447 | static void | |
fba45db2 KB |
2448 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2449 | va_list args, int filter) | |
c906108c SS |
2450 | { |
2451 | char *linebuffer; | |
2452 | struct cleanup *old_cleanups; | |
2453 | ||
e623b504 | 2454 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2455 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2456 | fputs_maybe_filtered (linebuffer, stream, filter); |
2457 | do_cleanups (old_cleanups); | |
2458 | } | |
2459 | ||
2460 | ||
2461 | void | |
fba45db2 | 2462 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2463 | { |
2464 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2465 | } | |
2466 | ||
2467 | void | |
fba45db2 | 2468 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2469 | { |
2470 | char *linebuffer; | |
2471 | struct cleanup *old_cleanups; | |
2472 | ||
e623b504 | 2473 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2474 | old_cleanups = make_cleanup (xfree, linebuffer); |
75feb17d DJ |
2475 | if (debug_timestamp && stream == gdb_stdlog) |
2476 | { | |
2477 | struct timeval tm; | |
2478 | char *timestamp; | |
6e5abd65 | 2479 | int len, need_nl; |
75feb17d DJ |
2480 | |
2481 | gettimeofday (&tm, NULL); | |
6e5abd65 PA |
2482 | |
2483 | len = strlen (linebuffer); | |
2484 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); | |
2485 | ||
2486 | timestamp = xstrprintf ("%ld:%ld %s%s", | |
2487 | (long) tm.tv_sec, (long) tm.tv_usec, | |
2488 | linebuffer, | |
2489 | need_nl ? "\n": ""); | |
75feb17d DJ |
2490 | make_cleanup (xfree, timestamp); |
2491 | fputs_unfiltered (timestamp, stream); | |
2492 | } | |
6e5abd65 PA |
2493 | else |
2494 | fputs_unfiltered (linebuffer, stream); | |
c906108c SS |
2495 | do_cleanups (old_cleanups); |
2496 | } | |
2497 | ||
2498 | void | |
fba45db2 | 2499 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2500 | { |
2501 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2502 | } | |
2503 | ||
2504 | void | |
fba45db2 | 2505 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2506 | { |
2507 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2508 | } | |
2509 | ||
c906108c | 2510 | void |
8731e58e | 2511 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2512 | { |
2513 | va_list args; | |
c906108c | 2514 | va_start (args, format); |
c906108c SS |
2515 | vfprintf_filtered (stream, format, args); |
2516 | va_end (args); | |
2517 | } | |
2518 | ||
c906108c | 2519 | void |
8731e58e | 2520 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2521 | { |
2522 | va_list args; | |
c906108c | 2523 | va_start (args, format); |
c906108c SS |
2524 | vfprintf_unfiltered (stream, format, args); |
2525 | va_end (args); | |
2526 | } | |
2527 | ||
2528 | /* Like fprintf_filtered, but prints its result indented. | |
2529 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2530 | ||
c906108c | 2531 | void |
8731e58e AC |
2532 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2533 | ...) | |
c906108c SS |
2534 | { |
2535 | va_list args; | |
c906108c | 2536 | va_start (args, format); |
c906108c SS |
2537 | print_spaces_filtered (spaces, stream); |
2538 | ||
2539 | vfprintf_filtered (stream, format, args); | |
2540 | va_end (args); | |
2541 | } | |
2542 | ||
2543 | ||
c906108c | 2544 | void |
8731e58e | 2545 | printf_filtered (const char *format, ...) |
c906108c SS |
2546 | { |
2547 | va_list args; | |
c906108c | 2548 | va_start (args, format); |
c906108c SS |
2549 | vfprintf_filtered (gdb_stdout, format, args); |
2550 | va_end (args); | |
2551 | } | |
2552 | ||
2553 | ||
c906108c | 2554 | void |
8731e58e | 2555 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2556 | { |
2557 | va_list args; | |
c906108c | 2558 | va_start (args, format); |
c906108c SS |
2559 | vfprintf_unfiltered (gdb_stdout, format, args); |
2560 | va_end (args); | |
2561 | } | |
2562 | ||
2563 | /* Like printf_filtered, but prints it's result indented. | |
2564 | Called as printfi_filtered (spaces, format, ...); */ | |
2565 | ||
c906108c | 2566 | void |
8731e58e | 2567 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2568 | { |
2569 | va_list args; | |
c906108c | 2570 | va_start (args, format); |
c906108c SS |
2571 | print_spaces_filtered (spaces, gdb_stdout); |
2572 | vfprintf_filtered (gdb_stdout, format, args); | |
2573 | va_end (args); | |
2574 | } | |
2575 | ||
2576 | /* Easy -- but watch out! | |
2577 | ||
2578 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2579 | This one doesn't, and had better not! */ | |
2580 | ||
2581 | void | |
fba45db2 | 2582 | puts_filtered (const char *string) |
c906108c SS |
2583 | { |
2584 | fputs_filtered (string, gdb_stdout); | |
2585 | } | |
2586 | ||
2587 | void | |
fba45db2 | 2588 | puts_unfiltered (const char *string) |
c906108c SS |
2589 | { |
2590 | fputs_unfiltered (string, gdb_stdout); | |
2591 | } | |
2592 | ||
2593 | /* Return a pointer to N spaces and a null. The pointer is good | |
2594 | until the next call to here. */ | |
2595 | char * | |
fba45db2 | 2596 | n_spaces (int n) |
c906108c | 2597 | { |
392a587b JM |
2598 | char *t; |
2599 | static char *spaces = 0; | |
2600 | static int max_spaces = -1; | |
c906108c SS |
2601 | |
2602 | if (n > max_spaces) | |
2603 | { | |
2604 | if (spaces) | |
b8c9b27d | 2605 | xfree (spaces); |
c5aa993b JM |
2606 | spaces = (char *) xmalloc (n + 1); |
2607 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2608 | *--t = ' '; |
2609 | spaces[n] = '\0'; | |
2610 | max_spaces = n; | |
2611 | } | |
2612 | ||
2613 | return spaces + max_spaces - n; | |
2614 | } | |
2615 | ||
2616 | /* Print N spaces. */ | |
2617 | void | |
fba45db2 | 2618 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2619 | { |
2620 | fputs_filtered (n_spaces (n), stream); | |
2621 | } | |
2622 | \f | |
4a351cef | 2623 | /* C++/ObjC demangler stuff. */ |
c906108c | 2624 | |
389e51db AC |
2625 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2626 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2627 | If the name is not mangled, or the language for the name is unknown, or | |
2628 | demangling is off, the name is printed in its "raw" form. */ | |
c906108c SS |
2629 | |
2630 | void | |
8731e58e AC |
2631 | fprintf_symbol_filtered (struct ui_file *stream, char *name, |
2632 | enum language lang, int arg_mode) | |
c906108c SS |
2633 | { |
2634 | char *demangled; | |
2635 | ||
2636 | if (name != NULL) | |
2637 | { | |
2638 | /* If user wants to see raw output, no problem. */ | |
2639 | if (!demangle) | |
2640 | { | |
2641 | fputs_filtered (name, stream); | |
2642 | } | |
2643 | else | |
2644 | { | |
9a3d7dfd | 2645 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2646 | fputs_filtered (demangled ? demangled : name, stream); |
2647 | if (demangled != NULL) | |
2648 | { | |
b8c9b27d | 2649 | xfree (demangled); |
c906108c SS |
2650 | } |
2651 | } | |
2652 | } | |
2653 | } | |
2654 | ||
2655 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2656 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2657 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2658 | |
c906108c SS |
2659 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2660 | This "feature" is useful when searching for matching C++ function names | |
2661 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
2662 | function). */ | |
2663 | ||
2664 | int | |
fba45db2 | 2665 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2666 | { |
2667 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2668 | { | |
2669 | while (isspace (*string1)) | |
2670 | { | |
2671 | string1++; | |
2672 | } | |
2673 | while (isspace (*string2)) | |
2674 | { | |
2675 | string2++; | |
2676 | } | |
2677 | if (*string1 != *string2) | |
2678 | { | |
2679 | break; | |
2680 | } | |
2681 | if (*string1 != '\0') | |
2682 | { | |
2683 | string1++; | |
2684 | string2++; | |
2685 | } | |
2686 | } | |
2687 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2688 | } | |
2de7ced7 | 2689 | |
0fe19209 DC |
2690 | /* This is like strcmp except that it ignores whitespace and treats |
2691 | '(' as the first non-NULL character in terms of ordering. Like | |
2692 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2693 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2694 | according to that ordering. | |
2695 | ||
2696 | If a list is sorted according to this function and if you want to | |
2697 | find names in the list that match some fixed NAME according to | |
2698 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2699 | where this function would put NAME. | |
2700 | ||
2701 | Here are some examples of why using strcmp to sort is a bad idea: | |
2702 | ||
2703 | Whitespace example: | |
2704 | ||
2705 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2706 | we try to do a search for "foo<char*>", strcmp will locate this | |
2707 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2708 | will start looking at strings beginning with "goo", and will never | |
2709 | see the correct match of "foo<char *>". | |
2710 | ||
2711 | Parenthesis example: | |
2712 | ||
2713 | In practice, this is less like to be an issue, but I'll give it a | |
2714 | shot. Let's assume that '$' is a legitimate character to occur in | |
2715 | symbols. (Which may well even be the case on some systems.) Then | |
2716 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2717 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2718 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2719 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2720 | "foo") is false, so it won't proceed to the actual match of | |
2721 | "foo(int)" with "foo". */ | |
2722 | ||
2723 | int | |
2724 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2725 | { | |
2726 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2727 | { | |
2728 | while (isspace (*string1)) | |
2729 | { | |
2730 | string1++; | |
2731 | } | |
2732 | while (isspace (*string2)) | |
2733 | { | |
2734 | string2++; | |
2735 | } | |
2736 | if (*string1 != *string2) | |
2737 | { | |
2738 | break; | |
2739 | } | |
2740 | if (*string1 != '\0') | |
2741 | { | |
2742 | string1++; | |
2743 | string2++; | |
2744 | } | |
2745 | } | |
2746 | ||
2747 | switch (*string1) | |
2748 | { | |
2749 | /* Characters are non-equal unless they're both '\0'; we want to | |
2750 | make sure we get the comparison right according to our | |
2751 | comparison in the cases where one of them is '\0' or '('. */ | |
2752 | case '\0': | |
2753 | if (*string2 == '\0') | |
2754 | return 0; | |
2755 | else | |
2756 | return -1; | |
2757 | case '(': | |
2758 | if (*string2 == '\0') | |
2759 | return 1; | |
2760 | else | |
2761 | return -1; | |
2762 | default: | |
2763 | if (*string2 == '(') | |
2764 | return 1; | |
2765 | else | |
2766 | return *string1 - *string2; | |
2767 | } | |
2768 | } | |
2769 | ||
2de7ced7 DJ |
2770 | /* A simple comparison function with opposite semantics to strcmp. */ |
2771 | ||
2772 | int | |
2773 | streq (const char *lhs, const char *rhs) | |
2774 | { | |
2775 | return !strcmp (lhs, rhs); | |
2776 | } | |
c906108c | 2777 | \f |
c5aa993b | 2778 | |
c906108c | 2779 | /* |
c5aa993b JM |
2780 | ** subset_compare() |
2781 | ** Answer whether string_to_compare is a full or partial match to | |
2782 | ** template_string. The partial match must be in sequence starting | |
2783 | ** at index 0. | |
2784 | */ | |
c906108c | 2785 | int |
fba45db2 | 2786 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
2787 | { |
2788 | int match; | |
8731e58e AC |
2789 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
2790 | && strlen (string_to_compare) <= strlen (template_string)) | |
2791 | match = | |
2792 | (strncmp | |
2793 | (template_string, string_to_compare, strlen (string_to_compare)) == 0); | |
7a292a7a SS |
2794 | else |
2795 | match = 0; | |
2796 | return match; | |
2797 | } | |
c906108c | 2798 | |
7a292a7a | 2799 | static void |
fba45db2 | 2800 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
2801 | { |
2802 | pagination_enabled = 1; | |
2803 | } | |
2804 | ||
7a292a7a | 2805 | static void |
fba45db2 | 2806 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
2807 | { |
2808 | pagination_enabled = 0; | |
2809 | } | |
75feb17d DJ |
2810 | |
2811 | static void | |
2812 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
2813 | struct cmd_list_element *c, const char *value) | |
2814 | { | |
2815 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), value); | |
2816 | } | |
c906108c | 2817 | \f |
c5aa993b | 2818 | |
c906108c | 2819 | void |
fba45db2 | 2820 | initialize_utils (void) |
c906108c SS |
2821 | { |
2822 | struct cmd_list_element *c; | |
2823 | ||
35096d9d AC |
2824 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
2825 | Set number of characters gdb thinks are in a line."), _("\ | |
2826 | Show number of characters gdb thinks are in a line."), NULL, | |
2827 | set_width_command, | |
920d2a44 | 2828 | show_chars_per_line, |
35096d9d AC |
2829 | &setlist, &showlist); |
2830 | ||
2831 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
2832 | Set number of lines gdb thinks are in a page."), _("\ | |
2833 | Show number of lines gdb thinks are in a page."), NULL, | |
2834 | set_height_command, | |
920d2a44 | 2835 | show_lines_per_page, |
35096d9d | 2836 | &setlist, &showlist); |
c5aa993b | 2837 | |
c906108c SS |
2838 | init_page_info (); |
2839 | ||
5bf193a2 AC |
2840 | add_setshow_boolean_cmd ("demangle", class_support, &demangle, _("\ |
2841 | Set demangling of encoded C++/ObjC names when displaying symbols."), _("\ | |
2842 | Show demangling of encoded C++/ObjC names when displaying symbols."), NULL, | |
2843 | NULL, | |
920d2a44 | 2844 | show_demangle, |
5bf193a2 AC |
2845 | &setprintlist, &showprintlist); |
2846 | ||
2847 | add_setshow_boolean_cmd ("pagination", class_support, | |
2848 | &pagination_enabled, _("\ | |
2849 | Set state of pagination."), _("\ | |
2850 | Show state of pagination."), NULL, | |
2851 | NULL, | |
920d2a44 | 2852 | show_pagination_enabled, |
5bf193a2 | 2853 | &setlist, &showlist); |
4261bedc | 2854 | |
c906108c SS |
2855 | if (xdb_commands) |
2856 | { | |
c5aa993b | 2857 | add_com ("am", class_support, pagination_on_command, |
1bedd215 | 2858 | _("Enable pagination")); |
c5aa993b | 2859 | add_com ("sm", class_support, pagination_off_command, |
1bedd215 | 2860 | _("Disable pagination")); |
c906108c SS |
2861 | } |
2862 | ||
5bf193a2 AC |
2863 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, |
2864 | &sevenbit_strings, _("\ | |
2865 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
2866 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
2867 | NULL, | |
920d2a44 | 2868 | show_sevenbit_strings, |
5bf193a2 AC |
2869 | &setprintlist, &showprintlist); |
2870 | ||
2871 | add_setshow_boolean_cmd ("asm-demangle", class_support, &asm_demangle, _("\ | |
2872 | Set demangling of C++/ObjC names in disassembly listings."), _("\ | |
2873 | Show demangling of C++/ObjC names in disassembly listings."), NULL, | |
2874 | NULL, | |
920d2a44 | 2875 | show_asm_demangle, |
5bf193a2 | 2876 | &setprintlist, &showprintlist); |
75feb17d DJ |
2877 | |
2878 | add_setshow_boolean_cmd ("timestamp", class_maintenance, | |
2879 | &debug_timestamp, _("\ | |
2880 | Set timestamping of debugging messages."), _("\ | |
2881 | Show timestamping of debugging messages."), _("\ | |
2882 | When set, debugging messages will be marked with seconds and microseconds."), | |
2883 | NULL, | |
2884 | show_debug_timestamp, | |
2885 | &setdebuglist, &showdebuglist); | |
c906108c SS |
2886 | } |
2887 | ||
2888 | /* Machine specific function to handle SIGWINCH signal. */ | |
2889 | ||
2890 | #ifdef SIGWINCH_HANDLER_BODY | |
c5aa993b | 2891 | SIGWINCH_HANDLER_BODY |
c906108c | 2892 | #endif |
5683e87a | 2893 | /* print routines to handle variable size regs, etc. */ |
c906108c SS |
2894 | /* temporary storage using circular buffer */ |
2895 | #define NUMCELLS 16 | |
0759e0bf | 2896 | #define CELLSIZE 50 |
c5aa993b | 2897 | static char * |
fba45db2 | 2898 | get_cell (void) |
c906108c SS |
2899 | { |
2900 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b JM |
2901 | static int cell = 0; |
2902 | if (++cell >= NUMCELLS) | |
2903 | cell = 0; | |
c906108c SS |
2904 | return buf[cell]; |
2905 | } | |
2906 | ||
66bf4b3a | 2907 | const char * |
5af949e3 | 2908 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
2909 | { |
2910 | /* Truncate address to the size of a target address, avoiding shifts | |
2911 | larger or equal than the width of a CORE_ADDR. The local | |
2912 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
2913 | when it won't occur. */ | |
2914 | /* NOTE: This assumes that the significant address information is | |
2915 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2916 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2917 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2918 | ||
5af949e3 | 2919 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
2920 | |
2921 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2922 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2923 | return hex_string (addr); | |
2924 | } | |
2925 | ||
8cf46f62 MK |
2926 | static char * |
2927 | decimal2str (char *sign, ULONGEST addr, int width) | |
104c1213 | 2928 | { |
8cf46f62 | 2929 | /* Steal code from valprint.c:print_decimal(). Should this worry |
104c1213 JM |
2930 | about the real size of addr as the above does? */ |
2931 | unsigned long temp[3]; | |
8cf46f62 MK |
2932 | char *str = get_cell (); |
2933 | ||
104c1213 JM |
2934 | int i = 0; |
2935 | do | |
2936 | { | |
2937 | temp[i] = addr % (1000 * 1000 * 1000); | |
2938 | addr /= (1000 * 1000 * 1000); | |
2939 | i++; | |
bb599908 | 2940 | width -= 9; |
104c1213 JM |
2941 | } |
2942 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 2943 | |
bb599908 PH |
2944 | width += 9; |
2945 | if (width < 0) | |
2946 | width = 0; | |
8cf46f62 | 2947 | |
104c1213 JM |
2948 | switch (i) |
2949 | { | |
2950 | case 1: | |
8cf46f62 | 2951 | xsnprintf (str, CELLSIZE, "%s%0*lu", sign, width, temp[0]); |
104c1213 JM |
2952 | break; |
2953 | case 2: | |
8cf46f62 MK |
2954 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu", sign, width, |
2955 | temp[1], temp[0]); | |
104c1213 JM |
2956 | break; |
2957 | case 3: | |
8cf46f62 MK |
2958 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu%09lu", sign, width, |
2959 | temp[2], temp[1], temp[0]); | |
bb599908 PH |
2960 | break; |
2961 | default: | |
2962 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2963 | _("failed internal consistency check")); |
bb599908 | 2964 | } |
8cf46f62 MK |
2965 | |
2966 | return str; | |
bb599908 PH |
2967 | } |
2968 | ||
8cf46f62 MK |
2969 | static char * |
2970 | octal2str (ULONGEST addr, int width) | |
bb599908 PH |
2971 | { |
2972 | unsigned long temp[3]; | |
8cf46f62 MK |
2973 | char *str = get_cell (); |
2974 | ||
bb599908 PH |
2975 | int i = 0; |
2976 | do | |
2977 | { | |
2978 | temp[i] = addr % (0100000 * 0100000); | |
2979 | addr /= (0100000 * 0100000); | |
2980 | i++; | |
2981 | width -= 10; | |
2982 | } | |
2983 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 2984 | |
bb599908 PH |
2985 | width += 10; |
2986 | if (width < 0) | |
2987 | width = 0; | |
8cf46f62 | 2988 | |
bb599908 PH |
2989 | switch (i) |
2990 | { | |
2991 | case 1: | |
2992 | if (temp[0] == 0) | |
8cf46f62 | 2993 | xsnprintf (str, CELLSIZE, "%*o", width, 0); |
bb599908 | 2994 | else |
8cf46f62 | 2995 | xsnprintf (str, CELLSIZE, "0%0*lo", width, temp[0]); |
bb599908 PH |
2996 | break; |
2997 | case 2: | |
8cf46f62 | 2998 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo", width, temp[1], temp[0]); |
bb599908 PH |
2999 | break; |
3000 | case 3: | |
8cf46f62 MK |
3001 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo%010lo", width, |
3002 | temp[2], temp[1], temp[0]); | |
104c1213 JM |
3003 | break; |
3004 | default: | |
8731e58e | 3005 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 3006 | _("failed internal consistency check")); |
104c1213 | 3007 | } |
8cf46f62 MK |
3008 | |
3009 | return str; | |
104c1213 JM |
3010 | } |
3011 | ||
3012 | char * | |
623d3eb1 | 3013 | pulongest (ULONGEST u) |
104c1213 | 3014 | { |
623d3eb1 | 3015 | return decimal2str ("", u, 0); |
104c1213 JM |
3016 | } |
3017 | ||
3018 | char * | |
623d3eb1 | 3019 | plongest (LONGEST l) |
104c1213 | 3020 | { |
623d3eb1 DE |
3021 | if (l < 0) |
3022 | return decimal2str ("-", -l, 0); | |
104c1213 | 3023 | else |
623d3eb1 | 3024 | return decimal2str ("", l, 0); |
104c1213 JM |
3025 | } |
3026 | ||
8cf46f62 | 3027 | /* Eliminate warning from compiler on 32-bit systems. */ |
5683e87a AC |
3028 | static int thirty_two = 32; |
3029 | ||
104c1213 | 3030 | char * |
5683e87a | 3031 | phex (ULONGEST l, int sizeof_l) |
104c1213 | 3032 | { |
45a1e866 | 3033 | char *str; |
8cf46f62 | 3034 | |
5683e87a | 3035 | switch (sizeof_l) |
104c1213 JM |
3036 | { |
3037 | case 8: | |
45a1e866 | 3038 | str = get_cell (); |
8cf46f62 MK |
3039 | xsnprintf (str, CELLSIZE, "%08lx%08lx", |
3040 | (unsigned long) (l >> thirty_two), | |
3041 | (unsigned long) (l & 0xffffffff)); | |
104c1213 JM |
3042 | break; |
3043 | case 4: | |
45a1e866 | 3044 | str = get_cell (); |
8cf46f62 | 3045 | xsnprintf (str, CELLSIZE, "%08lx", (unsigned long) l); |
104c1213 JM |
3046 | break; |
3047 | case 2: | |
45a1e866 | 3048 | str = get_cell (); |
8cf46f62 | 3049 | xsnprintf (str, CELLSIZE, "%04x", (unsigned short) (l & 0xffff)); |
104c1213 JM |
3050 | break; |
3051 | default: | |
45a1e866 | 3052 | str = phex (l, sizeof (l)); |
5683e87a | 3053 | break; |
104c1213 | 3054 | } |
8cf46f62 | 3055 | |
5683e87a | 3056 | return str; |
104c1213 JM |
3057 | } |
3058 | ||
c5aa993b | 3059 | char * |
5683e87a | 3060 | phex_nz (ULONGEST l, int sizeof_l) |
c906108c | 3061 | { |
faf833ca | 3062 | char *str; |
8cf46f62 | 3063 | |
5683e87a | 3064 | switch (sizeof_l) |
c906108c | 3065 | { |
c5aa993b JM |
3066 | case 8: |
3067 | { | |
5683e87a | 3068 | unsigned long high = (unsigned long) (l >> thirty_two); |
faf833ca | 3069 | str = get_cell (); |
c5aa993b | 3070 | if (high == 0) |
8cf46f62 MK |
3071 | xsnprintf (str, CELLSIZE, "%lx", |
3072 | (unsigned long) (l & 0xffffffff)); | |
c5aa993b | 3073 | else |
8cf46f62 MK |
3074 | xsnprintf (str, CELLSIZE, "%lx%08lx", high, |
3075 | (unsigned long) (l & 0xffffffff)); | |
c906108c | 3076 | break; |
c5aa993b JM |
3077 | } |
3078 | case 4: | |
faf833ca | 3079 | str = get_cell (); |
8cf46f62 | 3080 | xsnprintf (str, CELLSIZE, "%lx", (unsigned long) l); |
c5aa993b JM |
3081 | break; |
3082 | case 2: | |
faf833ca | 3083 | str = get_cell (); |
8cf46f62 | 3084 | xsnprintf (str, CELLSIZE, "%x", (unsigned short) (l & 0xffff)); |
c5aa993b JM |
3085 | break; |
3086 | default: | |
faf833ca | 3087 | str = phex_nz (l, sizeof (l)); |
5683e87a | 3088 | break; |
c906108c | 3089 | } |
8cf46f62 | 3090 | |
5683e87a | 3091 | return str; |
c906108c | 3092 | } |
ac2e2ef7 | 3093 | |
0759e0bf AC |
3094 | /* Converts a LONGEST to a C-format hexadecimal literal and stores it |
3095 | in a static string. Returns a pointer to this string. */ | |
3096 | char * | |
3097 | hex_string (LONGEST num) | |
3098 | { | |
3099 | char *result = get_cell (); | |
8cf46f62 | 3100 | xsnprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num))); |
0759e0bf AC |
3101 | return result; |
3102 | } | |
3103 | ||
3104 | /* Converts a LONGEST number to a C-format hexadecimal literal and | |
3105 | stores it in a static string. Returns a pointer to this string | |
3106 | that is valid until the next call. The number is padded on the | |
3107 | left with 0s to at least WIDTH characters. */ | |
3108 | char * | |
3109 | hex_string_custom (LONGEST num, int width) | |
3110 | { | |
3111 | char *result = get_cell (); | |
3112 | char *result_end = result + CELLSIZE - 1; | |
3113 | const char *hex = phex_nz (num, sizeof (num)); | |
3114 | int hex_len = strlen (hex); | |
3115 | ||
3116 | if (hex_len > width) | |
3117 | width = hex_len; | |
3118 | if (width + 2 >= CELLSIZE) | |
3119 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3120 | _("hex_string_custom: insufficient space to store result")); |
0759e0bf AC |
3121 | |
3122 | strcpy (result_end - width - 2, "0x"); | |
3123 | memset (result_end - width, '0', width); | |
3124 | strcpy (result_end - hex_len, hex); | |
3125 | return result_end - width - 2; | |
3126 | } | |
ac2e2ef7 | 3127 | |
bb599908 PH |
3128 | /* Convert VAL to a numeral in the given radix. For |
3129 | * radix 10, IS_SIGNED may be true, indicating a signed quantity; | |
3130 | * otherwise VAL is interpreted as unsigned. If WIDTH is supplied, | |
3131 | * it is the minimum width (0-padded if needed). USE_C_FORMAT means | |
3132 | * to use C format in all cases. If it is false, then 'x' | |
3133 | * and 'o' formats do not include a prefix (0x or leading 0). */ | |
3134 | ||
3135 | char * | |
3136 | int_string (LONGEST val, int radix, int is_signed, int width, | |
3137 | int use_c_format) | |
3138 | { | |
3139 | switch (radix) | |
3140 | { | |
3141 | case 16: | |
3142 | { | |
3143 | char *result; | |
3144 | if (width == 0) | |
3145 | result = hex_string (val); | |
3146 | else | |
3147 | result = hex_string_custom (val, width); | |
3148 | if (! use_c_format) | |
3149 | result += 2; | |
3150 | return result; | |
3151 | } | |
3152 | case 10: | |
3153 | { | |
bb599908 | 3154 | if (is_signed && val < 0) |
8cf46f62 | 3155 | return decimal2str ("-", -val, width); |
bb599908 | 3156 | else |
8cf46f62 | 3157 | return decimal2str ("", val, width); |
bb599908 PH |
3158 | } |
3159 | case 8: | |
3160 | { | |
8cf46f62 | 3161 | char *result = octal2str (val, width); |
bb599908 PH |
3162 | if (use_c_format || val == 0) |
3163 | return result; | |
3164 | else | |
3165 | return result + 1; | |
3166 | } | |
3167 | default: | |
3168 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3169 | _("failed internal consistency check")); |
bb599908 PH |
3170 | } |
3171 | } | |
3172 | ||
03dd37c3 AC |
3173 | /* Convert a CORE_ADDR into a string. */ |
3174 | const char * | |
3175 | core_addr_to_string (const CORE_ADDR addr) | |
49b563f9 KS |
3176 | { |
3177 | char *str = get_cell (); | |
3178 | strcpy (str, "0x"); | |
3179 | strcat (str, phex (addr, sizeof (addr))); | |
3180 | return str; | |
3181 | } | |
3182 | ||
3183 | const char * | |
3184 | core_addr_to_string_nz (const CORE_ADDR addr) | |
03dd37c3 AC |
3185 | { |
3186 | char *str = get_cell (); | |
3187 | strcpy (str, "0x"); | |
3188 | strcat (str, phex_nz (addr, sizeof (addr))); | |
3189 | return str; | |
3190 | } | |
3191 | ||
3192 | /* Convert a string back into a CORE_ADDR. */ | |
3193 | CORE_ADDR | |
3194 | string_to_core_addr (const char *my_string) | |
3195 | { | |
3196 | CORE_ADDR addr = 0; | |
9544c605 | 3197 | |
03dd37c3 AC |
3198 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
3199 | { | |
ced572fe | 3200 | /* Assume that it is in hex. */ |
03dd37c3 AC |
3201 | int i; |
3202 | for (i = 2; my_string[i] != '\0'; i++) | |
3203 | { | |
3204 | if (isdigit (my_string[i])) | |
3205 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 3206 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
3207 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
3208 | else | |
63f06803 | 3209 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
3210 | } |
3211 | } | |
3212 | else | |
3213 | { | |
3214 | /* Assume that it is in decimal. */ | |
3215 | int i; | |
3216 | for (i = 0; my_string[i] != '\0'; i++) | |
3217 | { | |
3218 | if (isdigit (my_string[i])) | |
3219 | addr = (my_string[i] - '0') + (addr * 10); | |
3220 | else | |
63f06803 | 3221 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
3222 | } |
3223 | } | |
9544c605 | 3224 | |
03dd37c3 AC |
3225 | return addr; |
3226 | } | |
58d370e0 | 3227 | |
17ea7499 CES |
3228 | const char * |
3229 | host_address_to_string (const void *addr) | |
3230 | { | |
3231 | char *str = get_cell (); | |
ea8992ce | 3232 | |
773698b5 | 3233 | xsnprintf (str, CELLSIZE, "0x%s", phex_nz ((uintptr_t) addr, sizeof (addr))); |
17ea7499 CES |
3234 | return str; |
3235 | } | |
3236 | ||
58d370e0 TT |
3237 | char * |
3238 | gdb_realpath (const char *filename) | |
3239 | { | |
70d35819 AC |
3240 | /* Method 1: The system has a compile time upper bound on a filename |
3241 | path. Use that and realpath() to canonicalize the name. This is | |
3242 | the most common case. Note that, if there isn't a compile time | |
3243 | upper bound, you want to avoid realpath() at all costs. */ | |
a4db0f07 | 3244 | #if defined(HAVE_REALPATH) |
70d35819 | 3245 | { |
a4db0f07 | 3246 | # if defined (PATH_MAX) |
70d35819 | 3247 | char buf[PATH_MAX]; |
a4db0f07 RH |
3248 | # define USE_REALPATH |
3249 | # elif defined (MAXPATHLEN) | |
70d35819 | 3250 | char buf[MAXPATHLEN]; |
a4db0f07 RH |
3251 | # define USE_REALPATH |
3252 | # endif | |
70d35819 | 3253 | # if defined (USE_REALPATH) |
82c0260e | 3254 | const char *rp = realpath (filename, buf); |
70d35819 AC |
3255 | if (rp == NULL) |
3256 | rp = filename; | |
3257 | return xstrdup (rp); | |
70d35819 | 3258 | # endif |
6f88d630 | 3259 | } |
a4db0f07 RH |
3260 | #endif /* HAVE_REALPATH */ |
3261 | ||
70d35819 AC |
3262 | /* Method 2: The host system (i.e., GNU) has the function |
3263 | canonicalize_file_name() which malloc's a chunk of memory and | |
3264 | returns that, use that. */ | |
3265 | #if defined(HAVE_CANONICALIZE_FILE_NAME) | |
3266 | { | |
3267 | char *rp = canonicalize_file_name (filename); | |
3268 | if (rp == NULL) | |
3269 | return xstrdup (filename); | |
3270 | else | |
3271 | return rp; | |
3272 | } | |
58d370e0 | 3273 | #endif |
70d35819 | 3274 | |
6411e720 AC |
3275 | /* FIXME: cagney/2002-11-13: |
3276 | ||
3277 | Method 2a: Use realpath() with a NULL buffer. Some systems, due | |
3278 | to the problems described in in method 3, have modified their | |
3279 | realpath() implementation so that it will allocate a buffer when | |
3280 | NULL is passed in. Before this can be used, though, some sort of | |
3281 | configure time test would need to be added. Otherwize the code | |
3282 | will likely core dump. */ | |
3283 | ||
70d35819 AC |
3284 | /* Method 3: Now we're getting desperate! The system doesn't have a |
3285 | compile time buffer size and no alternative function. Query the | |
3286 | OS, using pathconf(), for the buffer limit. Care is needed | |
3287 | though, some systems do not limit PATH_MAX (return -1 for | |
3288 | pathconf()) making it impossible to pass a correctly sized buffer | |
3289 | to realpath() (it could always overflow). On those systems, we | |
3290 | skip this. */ | |
3291 | #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA) | |
3292 | { | |
3293 | /* Find out the max path size. */ | |
3294 | long path_max = pathconf ("/", _PC_PATH_MAX); | |
3295 | if (path_max > 0) | |
3296 | { | |
3297 | /* PATH_MAX is bounded. */ | |
3298 | char *buf = alloca (path_max); | |
3299 | char *rp = realpath (filename, buf); | |
3300 | return xstrdup (rp ? rp : filename); | |
3301 | } | |
3302 | } | |
3303 | #endif | |
3304 | ||
3305 | /* This system is a lost cause, just dup the buffer. */ | |
3306 | return xstrdup (filename); | |
58d370e0 | 3307 | } |
303c8ebd JB |
3308 | |
3309 | /* Return a copy of FILENAME, with its directory prefix canonicalized | |
3310 | by gdb_realpath. */ | |
3311 | ||
3312 | char * | |
3313 | xfullpath (const char *filename) | |
3314 | { | |
3315 | const char *base_name = lbasename (filename); | |
3316 | char *dir_name; | |
3317 | char *real_path; | |
3318 | char *result; | |
3319 | ||
3320 | /* Extract the basename of filename, and return immediately | |
3321 | a copy of filename if it does not contain any directory prefix. */ | |
3322 | if (base_name == filename) | |
3323 | return xstrdup (filename); | |
3324 | ||
3325 | dir_name = alloca ((size_t) (base_name - filename + 2)); | |
3326 | /* Allocate enough space to store the dir_name + plus one extra | |
3327 | character sometimes needed under Windows (see below), and | |
3328 | then the closing \000 character */ | |
3329 | strncpy (dir_name, filename, base_name - filename); | |
3330 | dir_name[base_name - filename] = '\000'; | |
3331 | ||
3332 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3333 | /* We need to be careful when filename is of the form 'd:foo', which | |
3334 | is equivalent of d:./foo, which is totally different from d:/foo. */ | |
8731e58e | 3335 | if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':') |
303c8ebd JB |
3336 | { |
3337 | dir_name[2] = '.'; | |
3338 | dir_name[3] = '\000'; | |
3339 | } | |
3340 | #endif | |
3341 | ||
3342 | /* Canonicalize the directory prefix, and build the resulting | |
3343 | filename. If the dirname realpath already contains an ending | |
3344 | directory separator, avoid doubling it. */ | |
3345 | real_path = gdb_realpath (dir_name); | |
3346 | if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1])) | |
1754f103 | 3347 | result = concat (real_path, base_name, (char *)NULL); |
303c8ebd | 3348 | else |
1754f103 | 3349 | result = concat (real_path, SLASH_STRING, base_name, (char *)NULL); |
303c8ebd JB |
3350 | |
3351 | xfree (real_path); | |
3352 | return result; | |
3353 | } | |
5b5d99cf JB |
3354 | |
3355 | ||
3356 | /* This is the 32-bit CRC function used by the GNU separate debug | |
3357 | facility. An executable may contain a section named | |
3358 | .gnu_debuglink, which holds the name of a separate executable file | |
3359 | containing its debug info, and a checksum of that file's contents, | |
3360 | computed using this function. */ | |
3361 | unsigned long | |
3362 | gnu_debuglink_crc32 (unsigned long crc, unsigned char *buf, size_t len) | |
3363 | { | |
6e0a4fbc | 3364 | static const unsigned int crc32_table[256] = { |
8731e58e AC |
3365 | 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, |
3366 | 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, | |
3367 | 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, | |
3368 | 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, | |
3369 | 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, | |
3370 | 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, | |
3371 | 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, | |
3372 | 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, | |
3373 | 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, | |
3374 | 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, | |
3375 | 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, | |
3376 | 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, | |
3377 | 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, | |
3378 | 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, | |
3379 | 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, | |
3380 | 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, | |
3381 | 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, | |
3382 | 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, | |
3383 | 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, | |
3384 | 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, | |
3385 | 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, | |
3386 | 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, | |
3387 | 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, | |
3388 | 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, | |
3389 | 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, | |
3390 | 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, | |
3391 | 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, | |
3392 | 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, | |
3393 | 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, | |
3394 | 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, | |
3395 | 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, | |
3396 | 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, | |
3397 | 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, | |
3398 | 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, | |
3399 | 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, | |
3400 | 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, | |
3401 | 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, | |
3402 | 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, | |
3403 | 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, | |
3404 | 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, | |
3405 | 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, | |
3406 | 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, | |
3407 | 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, | |
3408 | 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, | |
3409 | 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, | |
3410 | 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, | |
3411 | 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, | |
3412 | 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, | |
3413 | 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, | |
3414 | 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, | |
3415 | 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, | |
3416 | 0x2d02ef8d | |
3417 | }; | |
5b5d99cf JB |
3418 | unsigned char *end; |
3419 | ||
3420 | crc = ~crc & 0xffffffff; | |
3421 | for (end = buf + len; buf < end; ++buf) | |
3422 | crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8); | |
3423 | return ~crc & 0xffffffff;; | |
3424 | } | |
5b03f266 AC |
3425 | |
3426 | ULONGEST | |
3427 | align_up (ULONGEST v, int n) | |
3428 | { | |
3429 | /* Check that N is really a power of two. */ | |
3430 | gdb_assert (n && (n & (n-1)) == 0); | |
3431 | return (v + n - 1) & -n; | |
3432 | } | |
3433 | ||
3434 | ULONGEST | |
3435 | align_down (ULONGEST v, int n) | |
3436 | { | |
3437 | /* Check that N is really a power of two. */ | |
3438 | gdb_assert (n && (n & (n-1)) == 0); | |
3439 | return (v & -n); | |
3440 | } | |
ae5a43e0 DJ |
3441 | |
3442 | /* Allocation function for the libiberty hash table which uses an | |
3443 | obstack. The obstack is passed as DATA. */ | |
3444 | ||
3445 | void * | |
3446 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
3447 | { | |
3448 | unsigned int total = size * count; | |
3449 | void *ptr = obstack_alloc ((struct obstack *) data, total); | |
3450 | memset (ptr, 0, total); | |
3451 | return ptr; | |
3452 | } | |
3453 | ||
3454 | /* Trivial deallocation function for the libiberty splay tree and hash | |
3455 | table - don't deallocate anything. Rely on later deletion of the | |
3456 | obstack. DATA will be the obstack, although it is not needed | |
3457 | here. */ | |
3458 | ||
3459 | void | |
3460 | dummy_obstack_deallocate (void *object, void *data) | |
3461 | { | |
3462 | return; | |
3463 | } | |
253c8abb DJ |
3464 | |
3465 | /* The bit offset of the highest byte in a ULONGEST, for overflow | |
3466 | checking. */ | |
3467 | ||
3468 | #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT) | |
3469 | ||
3470 | /* True (non-zero) iff DIGIT is a valid digit in radix BASE, | |
3471 | where 2 <= BASE <= 36. */ | |
3472 | ||
3473 | static int | |
3474 | is_digit_in_base (unsigned char digit, int base) | |
3475 | { | |
3476 | if (!isalnum (digit)) | |
3477 | return 0; | |
3478 | if (base <= 10) | |
3479 | return (isdigit (digit) && digit < base + '0'); | |
3480 | else | |
3481 | return (isdigit (digit) || tolower (digit) < base - 10 + 'a'); | |
3482 | } | |
3483 | ||
3484 | static int | |
3485 | digit_to_int (unsigned char c) | |
3486 | { | |
3487 | if (isdigit (c)) | |
3488 | return c - '0'; | |
3489 | else | |
3490 | return tolower (c) - 'a' + 10; | |
3491 | } | |
3492 | ||
3493 | /* As for strtoul, but for ULONGEST results. */ | |
3494 | ||
3495 | ULONGEST | |
3496 | strtoulst (const char *num, const char **trailer, int base) | |
3497 | { | |
3498 | unsigned int high_part; | |
3499 | ULONGEST result; | |
3500 | int minus = 0; | |
3501 | int i = 0; | |
3502 | ||
3503 | /* Skip leading whitespace. */ | |
3504 | while (isspace (num[i])) | |
3505 | i++; | |
3506 | ||
3507 | /* Handle prefixes. */ | |
3508 | if (num[i] == '+') | |
3509 | i++; | |
3510 | else if (num[i] == '-') | |
3511 | { | |
3512 | minus = 1; | |
3513 | i++; | |
3514 | } | |
3515 | ||
3516 | if (base == 0 || base == 16) | |
3517 | { | |
3518 | if (num[i] == '0' && (num[i + 1] == 'x' || num[i + 1] == 'X')) | |
3519 | { | |
3520 | i += 2; | |
3521 | if (base == 0) | |
3522 | base = 16; | |
3523 | } | |
3524 | } | |
3525 | ||
3526 | if (base == 0 && num[i] == '0') | |
3527 | base = 8; | |
3528 | ||
3529 | if (base == 0) | |
3530 | base = 10; | |
3531 | ||
3532 | if (base < 2 || base > 36) | |
3533 | { | |
3534 | errno = EINVAL; | |
3535 | return 0; | |
3536 | } | |
3537 | ||
3538 | result = high_part = 0; | |
3539 | for (; is_digit_in_base (num[i], base); i += 1) | |
3540 | { | |
3541 | result = result * base + digit_to_int (num[i]); | |
3542 | high_part = high_part * base + (unsigned int) (result >> HIGH_BYTE_POSN); | |
3543 | result &= ((ULONGEST) 1 << HIGH_BYTE_POSN) - 1; | |
3544 | if (high_part > 0xff) | |
3545 | { | |
3546 | errno = ERANGE; | |
3547 | result = ~ (ULONGEST) 0; | |
3548 | high_part = 0; | |
3549 | minus = 0; | |
3550 | break; | |
3551 | } | |
3552 | } | |
3553 | ||
3554 | if (trailer != NULL) | |
3555 | *trailer = &num[i]; | |
3556 | ||
3557 | result = result + ((ULONGEST) high_part << HIGH_BYTE_POSN); | |
3558 | if (minus) | |
3559 | return -result; | |
3560 | else | |
3561 | return result; | |
3562 | } | |
e1024ff1 DJ |
3563 | |
3564 | /* Simple, portable version of dirname that does not modify its | |
3565 | argument. */ | |
3566 | ||
3567 | char * | |
3568 | ldirname (const char *filename) | |
3569 | { | |
3570 | const char *base = lbasename (filename); | |
3571 | char *dirname; | |
3572 | ||
3573 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
3574 | --base; | |
3575 | ||
3576 | if (base == filename) | |
3577 | return NULL; | |
3578 | ||
3579 | dirname = xmalloc (base - filename + 2); | |
3580 | memcpy (dirname, filename, base - filename); | |
3581 | ||
3582 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
3583 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
3584 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
3585 | && !IS_DIR_SEPARATOR (filename[0])) | |
3586 | dirname[base++ - filename] = '.'; | |
3587 | ||
3588 | dirname[base - filename] = '\0'; | |
3589 | return dirname; | |
3590 | } | |
d1a41061 PP |
3591 | |
3592 | /* Call libiberty's buildargv, and return the result. | |
3593 | If buildargv fails due to out-of-memory, call nomem. | |
3594 | Therefore, the returned value is guaranteed to be non-NULL, | |
3595 | unless the parameter itself is NULL. */ | |
3596 | ||
3597 | char ** | |
3598 | gdb_buildargv (const char *s) | |
3599 | { | |
3600 | char **argv = buildargv (s); | |
3601 | if (s != NULL && argv == NULL) | |
3602 | nomem (0); | |
3603 | return argv; | |
3604 | } | |
3c16cced | 3605 | |
dc146f7c VP |
3606 | int |
3607 | compare_positive_ints (const void *ap, const void *bp) | |
3608 | { | |
3609 | /* Because we know we're comparing two ints which are positive, | |
3610 | there's no danger of overflow here. */ | |
3611 | return * (int *) ap - * (int *) bp; | |
3612 | } | |
3613 | ||
d18b8b7a HZ |
3614 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3615 | #define AMBIGUOUS_MESS2 ".\nUse \"set gnutarget format-name\" to specify the format." | |
3616 | ||
3617 | const char * | |
3618 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) | |
3619 | { | |
3620 | char *ret, *retp; | |
3621 | int ret_len; | |
3622 | char **p; | |
3623 | ||
3624 | /* Check if errmsg just need simple return. */ | |
3625 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
3626 | return bfd_errmsg (error_tag); | |
3627 | ||
3628 | ret_len = strlen (bfd_errmsg (error_tag)) + strlen (AMBIGUOUS_MESS1) | |
3629 | + strlen (AMBIGUOUS_MESS2); | |
3630 | for (p = matching; *p; p++) | |
3631 | ret_len += strlen (*p) + 1; | |
3632 | ret = xmalloc (ret_len + 1); | |
3633 | retp = ret; | |
3634 | make_cleanup (xfree, ret); | |
3635 | ||
3636 | strcpy (retp, bfd_errmsg (error_tag)); | |
3637 | retp += strlen (retp); | |
3638 | ||
3639 | strcpy (retp, AMBIGUOUS_MESS1); | |
3640 | retp += strlen (retp); | |
3641 | ||
3642 | for (p = matching; *p; p++) | |
3643 | { | |
3644 | sprintf (retp, " %s", *p); | |
3645 | retp += strlen (retp); | |
3646 | } | |
3647 | xfree (matching); | |
3648 | ||
3649 | strcpy (retp, AMBIGUOUS_MESS2); | |
3650 | ||
3651 | return ret; | |
3652 | } | |
3653 | ||
74164c56 JK |
3654 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
3655 | ||
3656 | int | |
3657 | parse_pid_to_attach (char *args) | |
3658 | { | |
3659 | unsigned long pid; | |
3660 | char *dummy; | |
3661 | ||
3662 | if (!args) | |
3663 | error_no_arg (_("process-id to attach")); | |
3664 | ||
3665 | dummy = args; | |
3666 | pid = strtoul (args, &dummy, 0); | |
3667 | /* Some targets don't set errno on errors, grrr! */ | |
3668 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
3669 | error (_("Illegal process-id: %s."), args); | |
3670 | ||
3671 | return pid; | |
3672 | } | |
3673 | ||
2c0b251b PA |
3674 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
3675 | extern initialize_file_ftype _initialize_utils; | |
3676 | ||
3c16cced PA |
3677 | void |
3678 | _initialize_utils (void) | |
3679 | { | |
3680 | add_internal_problem_command (&internal_error_problem); | |
3681 | add_internal_problem_command (&internal_warning_problem); | |
3682 | } |