Commit | Line | Data |
---|---|---|
c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
1bac305b | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, |
0fb0cc75 | 4 | 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, |
4c38e0a4 | 5 | 2009, 2010 Free Software Foundation, Inc. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c | 21 | |
4e8f7a8b DJ |
22 | #include "defs.h" |
23 | #include "gdb_assert.h" | |
24 | #include <ctype.h> | |
25 | #include "gdb_string.h" | |
26 | #include "event-top.h" | |
60250e8b | 27 | #include "exceptions.h" |
95e54da7 | 28 | #include "gdbthread.h" |
7991dee7 JK |
29 | #ifdef HAVE_SYS_RESOURCE_H |
30 | #include <sys/resource.h> | |
31 | #endif /* HAVE_SYS_RESOURCE_H */ | |
4e8f7a8b | 32 | |
6a83354a AC |
33 | #ifdef TUI |
34 | #include "tui/tui.h" /* For tui_get_command_dimension. */ | |
35 | #endif | |
36 | ||
9d271fd8 AC |
37 | #ifdef __GO32__ |
38 | #include <pc.h> | |
39 | #endif | |
40 | ||
c906108c SS |
41 | /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */ |
42 | #ifdef reg | |
43 | #undef reg | |
44 | #endif | |
45 | ||
042be3a9 | 46 | #include <signal.h> |
c906108c SS |
47 | #include "gdbcmd.h" |
48 | #include "serial.h" | |
49 | #include "bfd.h" | |
50 | #include "target.h" | |
51 | #include "demangle.h" | |
52 | #include "expression.h" | |
53 | #include "language.h" | |
234b45d4 | 54 | #include "charset.h" |
c906108c | 55 | #include "annotate.h" |
303c8ebd | 56 | #include "filenames.h" |
7b90c3f9 | 57 | #include "symfile.h" |
ae5a43e0 | 58 | #include "gdb_obstack.h" |
9544c605 | 59 | #include "gdbcore.h" |
698ba934 | 60 | #include "top.h" |
7c953934 | 61 | #include "main.h" |
c906108c | 62 | |
8731e58e | 63 | #include "inferior.h" /* for signed_pointer_to_address */ |
ac2e2ef7 | 64 | |
2d1b2124 AC |
65 | #include <sys/param.h> /* For MAXPATHLEN */ |
66 | ||
3b78cdbb | 67 | #include "gdb_curses.h" |
020cc13c | 68 | |
dbda9972 | 69 | #include "readline/readline.h" |
c906108c | 70 | |
75feb17d DJ |
71 | #include <sys/time.h> |
72 | #include <time.h> | |
73 | ||
8626589c | 74 | #include "gdb_usleep.h" |
390a8aca | 75 | #include "interps.h" |
8626589c | 76 | |
a3828db0 | 77 | #if !HAVE_DECL_MALLOC |
5ac79d78 | 78 | extern PTR malloc (); /* ARI: PTR */ |
3c37485b | 79 | #endif |
a3828db0 | 80 | #if !HAVE_DECL_REALLOC |
5ac79d78 | 81 | extern PTR realloc (); /* ARI: PTR */ |
0e52036f | 82 | #endif |
a3828db0 | 83 | #if !HAVE_DECL_FREE |
81b8eb80 AC |
84 | extern void free (); |
85 | #endif | |
81b8eb80 | 86 | |
c906108c SS |
87 | /* readline defines this. */ |
88 | #undef savestring | |
89 | ||
9a4105ab | 90 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
91 | |
92 | /* Prototypes for local functions */ | |
93 | ||
d9fcf2fb | 94 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
a0b31db1 | 95 | va_list, int) ATTRIBUTE_PRINTF (2, 0); |
c906108c | 96 | |
d9fcf2fb | 97 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 98 | |
e42c9534 AC |
99 | static void do_my_cleanups (struct cleanup **, struct cleanup *); |
100 | ||
a14ed312 | 101 | static void prompt_for_continue (void); |
c906108c | 102 | |
eb0d3137 | 103 | static void set_screen_size (void); |
a14ed312 | 104 | static void set_width (void); |
c906108c | 105 | |
75feb17d DJ |
106 | /* A flag indicating whether to timestamp debugging messages. */ |
107 | ||
108 | static int debug_timestamp = 0; | |
109 | ||
c906108c SS |
110 | /* Chain of cleanup actions established with make_cleanup, |
111 | to be executed if an error happens. */ | |
112 | ||
c5aa993b JM |
113 | static struct cleanup *cleanup_chain; /* cleaned up after a failed command */ |
114 | static struct cleanup *final_cleanup_chain; /* cleaned up when gdb exits */ | |
43ff13b4 | 115 | |
c906108c SS |
116 | /* Nonzero if we have job control. */ |
117 | ||
118 | int job_control; | |
119 | ||
120 | /* Nonzero means a quit has been requested. */ | |
121 | ||
122 | int quit_flag; | |
123 | ||
124 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
125 | than waiting until QUIT is executed. Be careful in setting this; | |
126 | code which executes with immediate_quit set has to be very careful | |
127 | about being able to deal with being interrupted at any time. It is | |
128 | almost always better to use QUIT; the only exception I can think of | |
129 | is being able to quit out of a system call (using EINTR loses if | |
130 | the SIGINT happens between the previous QUIT and the system call). | |
131 | To immediately quit in the case in which a SIGINT happens between | |
132 | the previous QUIT and setting immediate_quit (desirable anytime we | |
133 | expect to block), call QUIT after setting immediate_quit. */ | |
134 | ||
135 | int immediate_quit; | |
136 | ||
4a351cef AF |
137 | /* Nonzero means that encoded C++/ObjC names should be printed out in their |
138 | C++/ObjC form rather than raw. */ | |
c906108c SS |
139 | |
140 | int demangle = 1; | |
920d2a44 AC |
141 | static void |
142 | show_demangle (struct ui_file *file, int from_tty, | |
143 | struct cmd_list_element *c, const char *value) | |
144 | { | |
145 | fprintf_filtered (file, _("\ | |
146 | Demangling of encoded C++/ObjC names when displaying symbols is %s.\n"), | |
147 | value); | |
148 | } | |
c906108c | 149 | |
4a351cef AF |
150 | /* Nonzero means that encoded C++/ObjC names should be printed out in their |
151 | C++/ObjC form even in assembler language displays. If this is set, but | |
c906108c SS |
152 | DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */ |
153 | ||
154 | int asm_demangle = 0; | |
920d2a44 AC |
155 | static void |
156 | show_asm_demangle (struct ui_file *file, int from_tty, | |
157 | struct cmd_list_element *c, const char *value) | |
158 | { | |
159 | fprintf_filtered (file, _("\ | |
160 | Demangling of C++/ObjC names in disassembly listings is %s.\n"), | |
161 | value); | |
162 | } | |
c906108c SS |
163 | |
164 | /* Nonzero means that strings with character values >0x7F should be printed | |
165 | as octal escapes. Zero means just print the value (e.g. it's an | |
166 | international character, and the terminal or window can cope.) */ | |
167 | ||
168 | int sevenbit_strings = 0; | |
920d2a44 AC |
169 | static void |
170 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
171 | struct cmd_list_element *c, const char *value) | |
172 | { | |
173 | fprintf_filtered (file, _("\ | |
174 | Printing of 8-bit characters in strings as \\nnn is %s.\n"), | |
175 | value); | |
176 | } | |
c906108c SS |
177 | |
178 | /* String to be printed before error messages, if any. */ | |
179 | ||
180 | char *error_pre_print; | |
181 | ||
182 | /* String to be printed before quit messages, if any. */ | |
183 | ||
184 | char *quit_pre_print; | |
185 | ||
186 | /* String to be printed before warning messages, if any. */ | |
187 | ||
188 | char *warning_pre_print = "\nwarning: "; | |
189 | ||
190 | int pagination_enabled = 1; | |
920d2a44 AC |
191 | static void |
192 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
193 | struct cmd_list_element *c, const char *value) | |
194 | { | |
195 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
196 | } | |
197 | ||
c906108c | 198 | \f |
c5aa993b | 199 | |
c906108c SS |
200 | /* Add a new cleanup to the cleanup_chain, |
201 | and return the previous chain pointer | |
202 | to be passed later to do_cleanups or discard_cleanups. | |
203 | Args are FUNCTION to clean up with, and ARG to pass to it. */ | |
204 | ||
205 | struct cleanup * | |
e4005526 | 206 | make_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 207 | { |
c5aa993b | 208 | return make_my_cleanup (&cleanup_chain, function, arg); |
c906108c SS |
209 | } |
210 | ||
4f8d22e3 PA |
211 | struct cleanup * |
212 | make_cleanup_dtor (make_cleanup_ftype *function, void *arg, | |
213 | void (*dtor) (void *)) | |
214 | { | |
215 | return make_my_cleanup2 (&cleanup_chain, | |
216 | function, arg, dtor); | |
217 | } | |
218 | ||
c906108c | 219 | struct cleanup * |
e4005526 | 220 | make_final_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 221 | { |
c5aa993b | 222 | return make_my_cleanup (&final_cleanup_chain, function, arg); |
c906108c | 223 | } |
7a292a7a | 224 | |
7a292a7a | 225 | static void |
fba45db2 | 226 | do_freeargv (void *arg) |
7a292a7a | 227 | { |
c5aa993b | 228 | freeargv ((char **) arg); |
7a292a7a SS |
229 | } |
230 | ||
231 | struct cleanup * | |
fba45db2 | 232 | make_cleanup_freeargv (char **arg) |
7a292a7a SS |
233 | { |
234 | return make_my_cleanup (&cleanup_chain, do_freeargv, arg); | |
235 | } | |
236 | ||
5c65bbb6 AC |
237 | static void |
238 | do_bfd_close_cleanup (void *arg) | |
239 | { | |
240 | bfd_close (arg); | |
241 | } | |
242 | ||
243 | struct cleanup * | |
244 | make_cleanup_bfd_close (bfd *abfd) | |
245 | { | |
246 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
247 | } | |
248 | ||
f5ff8c83 AC |
249 | static void |
250 | do_close_cleanup (void *arg) | |
251 | { | |
f042532c | 252 | int *fd = arg; |
e0627e85 | 253 | |
f042532c | 254 | close (*fd); |
f5ff8c83 AC |
255 | } |
256 | ||
257 | struct cleanup * | |
258 | make_cleanup_close (int fd) | |
259 | { | |
f042532c | 260 | int *saved_fd = xmalloc (sizeof (fd)); |
e0627e85 | 261 | |
f042532c | 262 | *saved_fd = fd; |
a05016c0 | 263 | return make_cleanup_dtor (do_close_cleanup, saved_fd, xfree); |
f5ff8c83 AC |
264 | } |
265 | ||
7c8a8b04 TT |
266 | /* Helper function which does the work for make_cleanup_fclose. */ |
267 | ||
268 | static void | |
269 | do_fclose_cleanup (void *arg) | |
270 | { | |
c02866a0 | 271 | FILE *file = arg; |
e0627e85 | 272 | |
c02866a0 | 273 | fclose (file); |
7c8a8b04 TT |
274 | } |
275 | ||
276 | /* Return a new cleanup that closes FILE. */ | |
277 | ||
278 | struct cleanup * | |
279 | make_cleanup_fclose (FILE *file) | |
280 | { | |
281 | return make_cleanup (do_fclose_cleanup, file); | |
282 | } | |
283 | ||
16ad9370 TT |
284 | /* Helper function which does the work for make_cleanup_obstack_free. */ |
285 | ||
286 | static void | |
287 | do_obstack_free (void *arg) | |
288 | { | |
289 | struct obstack *ob = arg; | |
e0627e85 | 290 | |
16ad9370 TT |
291 | obstack_free (ob, NULL); |
292 | } | |
293 | ||
294 | /* Return a new cleanup that frees OBSTACK. */ | |
295 | ||
296 | struct cleanup * | |
297 | make_cleanup_obstack_free (struct obstack *obstack) | |
298 | { | |
299 | return make_cleanup (do_obstack_free, obstack); | |
300 | } | |
301 | ||
11cf8741 | 302 | static void |
d9fcf2fb | 303 | do_ui_file_delete (void *arg) |
11cf8741 | 304 | { |
d9fcf2fb | 305 | ui_file_delete (arg); |
11cf8741 JM |
306 | } |
307 | ||
308 | struct cleanup * | |
d9fcf2fb | 309 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 310 | { |
d9fcf2fb | 311 | return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg); |
11cf8741 JM |
312 | } |
313 | ||
7b90c3f9 JB |
314 | static void |
315 | do_free_section_addr_info (void *arg) | |
316 | { | |
317 | free_section_addr_info (arg); | |
318 | } | |
319 | ||
320 | struct cleanup * | |
321 | make_cleanup_free_section_addr_info (struct section_addr_info *addrs) | |
322 | { | |
323 | return make_my_cleanup (&cleanup_chain, do_free_section_addr_info, addrs); | |
324 | } | |
325 | ||
0b080f59 VP |
326 | struct restore_integer_closure |
327 | { | |
328 | int *variable; | |
329 | int value; | |
330 | }; | |
331 | ||
332 | static void | |
333 | restore_integer (void *p) | |
334 | { | |
335 | struct restore_integer_closure *closure = p; | |
e0627e85 | 336 | |
0b080f59 VP |
337 | *(closure->variable) = closure->value; |
338 | } | |
7b90c3f9 | 339 | |
0b080f59 VP |
340 | /* Remember the current value of *VARIABLE and make it restored when the cleanup |
341 | is run. */ | |
5da1313b | 342 | |
c906108c | 343 | struct cleanup * |
0b080f59 VP |
344 | make_cleanup_restore_integer (int *variable) |
345 | { | |
346 | struct restore_integer_closure *c = | |
347 | xmalloc (sizeof (struct restore_integer_closure)); | |
e0627e85 | 348 | |
0b080f59 VP |
349 | c->variable = variable; |
350 | c->value = *variable; | |
351 | ||
352 | return make_my_cleanup2 (&cleanup_chain, restore_integer, (void *)c, | |
353 | xfree); | |
354 | } | |
355 | ||
5da1313b JK |
356 | /* Remember the current value of *VARIABLE and make it restored when the cleanup |
357 | is run. */ | |
358 | ||
359 | struct cleanup * | |
360 | make_cleanup_restore_uinteger (unsigned int *variable) | |
361 | { | |
362 | return make_cleanup_restore_integer ((int *) variable); | |
363 | } | |
364 | ||
c0edd9ed JK |
365 | /* Helper for make_cleanup_unpush_target. */ |
366 | ||
367 | static void | |
368 | do_unpush_target (void *arg) | |
369 | { | |
370 | struct target_ops *ops = arg; | |
371 | ||
372 | unpush_target (ops); | |
373 | } | |
374 | ||
375 | /* Return a new cleanup that unpushes OPS. */ | |
376 | ||
377 | struct cleanup * | |
378 | make_cleanup_unpush_target (struct target_ops *ops) | |
379 | { | |
380 | return make_my_cleanup (&cleanup_chain, do_unpush_target, ops); | |
381 | } | |
382 | ||
5da1313b JK |
383 | struct restore_ui_file_closure |
384 | { | |
385 | struct ui_file **variable; | |
386 | struct ui_file *value; | |
387 | }; | |
388 | ||
389 | static void | |
390 | do_restore_ui_file (void *p) | |
391 | { | |
392 | struct restore_ui_file_closure *closure = p; | |
393 | ||
394 | *(closure->variable) = closure->value; | |
395 | } | |
396 | ||
397 | /* Remember the current value of *VARIABLE and make it restored when | |
398 | the cleanup is run. */ | |
399 | ||
400 | struct cleanup * | |
401 | make_cleanup_restore_ui_file (struct ui_file **variable) | |
402 | { | |
403 | struct restore_ui_file_closure *c = XNEW (struct restore_ui_file_closure); | |
404 | ||
405 | c->variable = variable; | |
406 | c->value = *variable; | |
407 | ||
408 | return make_cleanup_dtor (do_restore_ui_file, (void *) c, xfree); | |
409 | } | |
410 | ||
0b080f59 VP |
411 | struct cleanup * |
412 | make_my_cleanup2 (struct cleanup **pmy_chain, make_cleanup_ftype *function, | |
413 | void *arg, void (*free_arg) (void *)) | |
c906108c | 414 | { |
52f0bd74 | 415 | struct cleanup *new |
8731e58e | 416 | = (struct cleanup *) xmalloc (sizeof (struct cleanup)); |
52f0bd74 | 417 | struct cleanup *old_chain = *pmy_chain; |
c906108c SS |
418 | |
419 | new->next = *pmy_chain; | |
420 | new->function = function; | |
0b080f59 | 421 | new->free_arg = free_arg; |
c906108c SS |
422 | new->arg = arg; |
423 | *pmy_chain = new; | |
424 | ||
425 | return old_chain; | |
426 | } | |
427 | ||
0b080f59 VP |
428 | struct cleanup * |
429 | make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function, | |
430 | void *arg) | |
431 | { | |
432 | return make_my_cleanup2 (pmy_chain, function, arg, NULL); | |
433 | } | |
434 | ||
c906108c SS |
435 | /* Discard cleanups and do the actions they describe |
436 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
437 | ||
438 | void | |
aa1ee363 | 439 | do_cleanups (struct cleanup *old_chain) |
c906108c | 440 | { |
c5aa993b | 441 | do_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
442 | } |
443 | ||
444 | void | |
aa1ee363 | 445 | do_final_cleanups (struct cleanup *old_chain) |
c906108c | 446 | { |
c5aa993b | 447 | do_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
448 | } |
449 | ||
e42c9534 | 450 | static void |
aa1ee363 AC |
451 | do_my_cleanups (struct cleanup **pmy_chain, |
452 | struct cleanup *old_chain) | |
c906108c | 453 | { |
52f0bd74 | 454 | struct cleanup *ptr; |
e0627e85 | 455 | |
c906108c SS |
456 | while ((ptr = *pmy_chain) != old_chain) |
457 | { | |
458 | *pmy_chain = ptr->next; /* Do this first incase recursion */ | |
459 | (*ptr->function) (ptr->arg); | |
0b080f59 VP |
460 | if (ptr->free_arg) |
461 | (*ptr->free_arg) (ptr->arg); | |
b8c9b27d | 462 | xfree (ptr); |
c906108c SS |
463 | } |
464 | } | |
465 | ||
466 | /* Discard cleanups, not doing the actions they describe, | |
467 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
468 | ||
469 | void | |
aa1ee363 | 470 | discard_cleanups (struct cleanup *old_chain) |
c906108c | 471 | { |
c5aa993b | 472 | discard_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
473 | } |
474 | ||
475 | void | |
aa1ee363 | 476 | discard_final_cleanups (struct cleanup *old_chain) |
c906108c | 477 | { |
c5aa993b | 478 | discard_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
479 | } |
480 | ||
481 | void | |
aa1ee363 AC |
482 | discard_my_cleanups (struct cleanup **pmy_chain, |
483 | struct cleanup *old_chain) | |
c906108c | 484 | { |
52f0bd74 | 485 | struct cleanup *ptr; |
e0627e85 | 486 | |
c906108c SS |
487 | while ((ptr = *pmy_chain) != old_chain) |
488 | { | |
489 | *pmy_chain = ptr->next; | |
0b080f59 VP |
490 | if (ptr->free_arg) |
491 | (*ptr->free_arg) (ptr->arg); | |
b8c9b27d | 492 | xfree (ptr); |
c906108c SS |
493 | } |
494 | } | |
495 | ||
496 | /* Set the cleanup_chain to 0, and return the old cleanup chain. */ | |
497 | struct cleanup * | |
fba45db2 | 498 | save_cleanups (void) |
c906108c | 499 | { |
c5aa993b | 500 | return save_my_cleanups (&cleanup_chain); |
c906108c SS |
501 | } |
502 | ||
503 | struct cleanup * | |
fba45db2 | 504 | save_final_cleanups (void) |
c906108c | 505 | { |
c5aa993b | 506 | return save_my_cleanups (&final_cleanup_chain); |
c906108c SS |
507 | } |
508 | ||
509 | struct cleanup * | |
fba45db2 | 510 | save_my_cleanups (struct cleanup **pmy_chain) |
c906108c SS |
511 | { |
512 | struct cleanup *old_chain = *pmy_chain; | |
513 | ||
514 | *pmy_chain = 0; | |
515 | return old_chain; | |
516 | } | |
517 | ||
518 | /* Restore the cleanup chain from a previously saved chain. */ | |
519 | void | |
fba45db2 | 520 | restore_cleanups (struct cleanup *chain) |
c906108c | 521 | { |
c5aa993b | 522 | restore_my_cleanups (&cleanup_chain, chain); |
c906108c SS |
523 | } |
524 | ||
525 | void | |
fba45db2 | 526 | restore_final_cleanups (struct cleanup *chain) |
c906108c | 527 | { |
c5aa993b | 528 | restore_my_cleanups (&final_cleanup_chain, chain); |
c906108c SS |
529 | } |
530 | ||
531 | void | |
fba45db2 | 532 | restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain) |
c906108c SS |
533 | { |
534 | *pmy_chain = chain; | |
535 | } | |
536 | ||
537 | /* This function is useful for cleanups. | |
538 | Do | |
539 | ||
c5aa993b JM |
540 | foo = xmalloc (...); |
541 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
542 | |
543 | to arrange to free the object thus allocated. */ | |
544 | ||
545 | void | |
2f9429ae | 546 | free_current_contents (void *ptr) |
c906108c | 547 | { |
2f9429ae | 548 | void **location = ptr; |
e0627e85 | 549 | |
e2f9c474 | 550 | if (location == NULL) |
8e65ff28 | 551 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 552 | _("free_current_contents: NULL pointer")); |
2f9429ae | 553 | if (*location != NULL) |
e2f9c474 | 554 | { |
b8c9b27d | 555 | xfree (*location); |
e2f9c474 AC |
556 | *location = NULL; |
557 | } | |
c906108c SS |
558 | } |
559 | ||
560 | /* Provide a known function that does nothing, to use as a base for | |
561 | for a possibly long chain of cleanups. This is useful where we | |
562 | use the cleanup chain for handling normal cleanups as well as dealing | |
563 | with cleanups that need to be done as a result of a call to error(). | |
564 | In such cases, we may not be certain where the first cleanup is, unless | |
565 | we have a do-nothing one to always use as the base. */ | |
566 | ||
c906108c | 567 | void |
e4005526 | 568 | null_cleanup (void *arg) |
c906108c SS |
569 | { |
570 | } | |
571 | ||
0f3bb72e PH |
572 | /* If nonzero, display time usage both at startup and for each command. */ |
573 | ||
574 | static int display_time; | |
575 | ||
576 | /* If nonzero, display space usage both at startup and for each command. */ | |
577 | ||
578 | static int display_space; | |
579 | ||
580 | /* Records a run time and space usage to be used as a base for | |
581 | reporting elapsed time or change in space. In addition, | |
582 | the msg_type field indicates whether the saved time is from the | |
583 | beginning of GDB execution (0) or the beginning of an individual | |
584 | command execution (1). */ | |
585 | struct cmd_stats | |
586 | { | |
587 | int msg_type; | |
588 | long start_time; | |
589 | long start_space; | |
590 | }; | |
591 | ||
592 | /* Set whether to display time statistics to NEW_VALUE (non-zero | |
593 | means true). */ | |
594 | void | |
595 | set_display_time (int new_value) | |
596 | { | |
597 | display_time = new_value; | |
598 | } | |
599 | ||
600 | /* Set whether to display space statistics to NEW_VALUE (non-zero | |
601 | means true). */ | |
602 | void | |
603 | set_display_space (int new_value) | |
604 | { | |
605 | display_space = new_value; | |
606 | } | |
607 | ||
608 | /* As indicated by display_time and display_space, report GDB's elapsed time | |
609 | and space usage from the base time and space provided in ARG, which | |
610 | must be a pointer to a struct cmd_stat. This function is intended | |
611 | to be called as a cleanup. */ | |
612 | static void | |
613 | report_command_stats (void *arg) | |
614 | { | |
615 | struct cmd_stats *start_stats = (struct cmd_stats *) arg; | |
616 | int msg_type = start_stats->msg_type; | |
617 | ||
618 | if (display_time) | |
619 | { | |
620 | long cmd_time = get_run_time () - start_stats->start_time; | |
621 | ||
622 | printf_unfiltered (msg_type == 0 | |
623 | ? _("Startup time: %ld.%06ld\n") | |
624 | : _("Command execution time: %ld.%06ld\n"), | |
625 | cmd_time / 1000000, cmd_time % 1000000); | |
626 | } | |
627 | ||
628 | if (display_space) | |
629 | { | |
630 | #ifdef HAVE_SBRK | |
631 | char *lim = (char *) sbrk (0); | |
632 | ||
633 | long space_now = lim - lim_at_start; | |
634 | long space_diff = space_now - start_stats->start_space; | |
635 | ||
636 | printf_unfiltered (msg_type == 0 | |
637 | ? _("Space used: %ld (%c%ld during startup)\n") | |
638 | : _("Space used: %ld (%c%ld for this command)\n"), | |
639 | space_now, | |
640 | (space_diff >= 0 ? '+' : '-'), | |
641 | space_diff); | |
642 | #endif | |
643 | } | |
644 | } | |
645 | ||
646 | /* Create a cleanup that reports time and space used since its | |
647 | creation. Precise messages depend on MSG_TYPE: | |
648 | 0: Initial time/space | |
649 | 1: Individual command time/space. */ | |
650 | struct cleanup * | |
651 | make_command_stats_cleanup (int msg_type) | |
652 | { | |
653 | struct cmd_stats *new_stat = XMALLOC (struct cmd_stats); | |
654 | ||
655 | #ifdef HAVE_SBRK | |
656 | char *lim = (char *) sbrk (0); | |
657 | new_stat->start_space = lim - lim_at_start; | |
658 | #endif | |
659 | ||
660 | new_stat->msg_type = msg_type; | |
661 | new_stat->start_time = get_run_time (); | |
662 | ||
663 | return make_cleanup_dtor (report_command_stats, new_stat, xfree); | |
664 | } | |
665 | ||
0ffe5012 PA |
666 | /* Continuations are implemented as cleanups internally. Inherit from |
667 | cleanups. */ | |
668 | struct continuation | |
669 | { | |
670 | struct cleanup base; | |
671 | }; | |
672 | ||
95e54da7 PA |
673 | /* Add a continuation to the continuation list of THREAD. The new |
674 | continuation will be added at the front. */ | |
43ff13b4 | 675 | void |
95e54da7 PA |
676 | add_continuation (struct thread_info *thread, |
677 | void (*continuation_hook) (void *), void *args, | |
604ead4a | 678 | void (*continuation_free_args) (void *)) |
43ff13b4 | 679 | { |
95e54da7 | 680 | struct cleanup *as_cleanup = &thread->continuations->base; |
604ead4a | 681 | make_cleanup_ftype *continuation_hook_fn = continuation_hook; |
43ff13b4 | 682 | |
0ffe5012 | 683 | make_my_cleanup2 (&as_cleanup, |
604ead4a PA |
684 | continuation_hook_fn, |
685 | args, | |
686 | continuation_free_args); | |
0ffe5012 | 687 | |
95e54da7 | 688 | thread->continuations = (struct continuation *) as_cleanup; |
43ff13b4 JM |
689 | } |
690 | ||
e0ba6746 PA |
691 | /* Add a continuation to the continuation list of INFERIOR. The new |
692 | continuation will be added at the front. */ | |
693 | ||
694 | void | |
695 | add_inferior_continuation (void (*continuation_hook) (void *), void *args, | |
696 | void (*continuation_free_args) (void *)) | |
697 | { | |
698 | struct inferior *inf = current_inferior (); | |
699 | struct cleanup *as_cleanup = &inf->continuations->base; | |
700 | make_cleanup_ftype *continuation_hook_fn = continuation_hook; | |
701 | ||
702 | make_my_cleanup2 (&as_cleanup, | |
703 | continuation_hook_fn, | |
704 | args, | |
705 | continuation_free_args); | |
706 | ||
707 | inf->continuations = (struct continuation *) as_cleanup; | |
708 | } | |
709 | ||
710 | /* Do all continuations of the current inferior. */ | |
711 | ||
712 | void | |
713 | do_all_inferior_continuations (void) | |
714 | { | |
e0ba6746 PA |
715 | struct cleanup *as_cleanup; |
716 | struct inferior *inf = current_inferior (); | |
717 | ||
718 | if (inf->continuations == NULL) | |
719 | return; | |
720 | ||
721 | /* Copy the list header into another pointer, and set the global | |
722 | list header to null, so that the global list can change as a side | |
723 | effect of invoking the continuations and the processing of the | |
724 | preexisting continuations will not be affected. */ | |
725 | ||
726 | as_cleanup = &inf->continuations->base; | |
727 | inf->continuations = NULL; | |
728 | ||
729 | /* Work now on the list we have set aside. */ | |
730 | do_my_cleanups (&as_cleanup, NULL); | |
731 | } | |
732 | ||
733 | /* Get rid of all the inferior-wide continuations of INF. */ | |
734 | ||
735 | void | |
736 | discard_all_inferior_continuations (struct inferior *inf) | |
737 | { | |
738 | struct cleanup *continuation_ptr = &inf->continuations->base; | |
e0627e85 | 739 | |
e0ba6746 PA |
740 | discard_my_cleanups (&continuation_ptr, NULL); |
741 | inf->continuations = NULL; | |
742 | } | |
743 | ||
95e54da7 PA |
744 | static void |
745 | restore_thread_cleanup (void *arg) | |
746 | { | |
747 | ptid_t *ptid_p = arg; | |
e0627e85 | 748 | |
95e54da7 PA |
749 | switch_to_thread (*ptid_p); |
750 | } | |
751 | ||
752 | /* Walk down the continuation list of PTID, and execute all the | |
753 | continuations. There is a problem though. In some cases new | |
754 | continuations may be added while we are in the middle of this loop. | |
755 | If this happens they will be added in the front, and done before we | |
756 | have a chance of exhausting those that were already there. We need | |
757 | to then save the beginning of the list in a pointer and do the | |
758 | continuations from there on, instead of using the global beginning | |
759 | of list as our iteration pointer. */ | |
760 | static void | |
761 | do_all_continuations_ptid (ptid_t ptid, | |
762 | struct continuation **continuations_p) | |
c2d11a7d | 763 | { |
95e54da7 PA |
764 | struct cleanup *old_chain; |
765 | ptid_t current_thread; | |
766 | struct cleanup *as_cleanup; | |
767 | ||
768 | if (*continuations_p == NULL) | |
769 | return; | |
770 | ||
771 | current_thread = inferior_ptid; | |
772 | ||
773 | /* Restore selected thread on exit. Don't try to restore the frame | |
774 | as well, because: | |
775 | ||
776 | - When running continuations, the selected frame is always #0. | |
777 | ||
778 | - The continuations may trigger symbol file loads, which may | |
779 | change the frame layout (frame ids change), which would trigger | |
780 | a warning if we used make_cleanup_restore_current_thread. */ | |
781 | ||
782 | old_chain = make_cleanup (restore_thread_cleanup, ¤t_thread); | |
783 | ||
784 | /* Let the continuation see this thread as selected. */ | |
785 | switch_to_thread (ptid); | |
c2d11a7d JM |
786 | |
787 | /* Copy the list header into another pointer, and set the global | |
788 | list header to null, so that the global list can change as a side | |
604ead4a PA |
789 | effect of invoking the continuations and the processing of the |
790 | preexisting continuations will not be affected. */ | |
791 | ||
95e54da7 PA |
792 | as_cleanup = &(*continuations_p)->base; |
793 | *continuations_p = NULL; | |
c2d11a7d | 794 | |
0a4a0819 | 795 | /* Work now on the list we have set aside. */ |
95e54da7 PA |
796 | do_my_cleanups (&as_cleanup, NULL); |
797 | ||
798 | do_cleanups (old_chain); | |
799 | } | |
800 | ||
801 | /* Callback for iterate over threads. */ | |
802 | static int | |
803 | do_all_continuations_thread_callback (struct thread_info *thread, void *data) | |
804 | { | |
805 | do_all_continuations_ptid (thread->ptid, &thread->continuations); | |
806 | return 0; | |
c2d11a7d JM |
807 | } |
808 | ||
95e54da7 | 809 | /* Do all continuations of thread THREAD. */ |
c2d11a7d | 810 | void |
95e54da7 PA |
811 | do_all_continuations_thread (struct thread_info *thread) |
812 | { | |
813 | do_all_continuations_thread_callback (thread, NULL); | |
814 | } | |
815 | ||
816 | /* Do all continuations of all threads. */ | |
817 | void | |
818 | do_all_continuations (void) | |
43ff13b4 | 819 | { |
95e54da7 PA |
820 | iterate_over_threads (do_all_continuations_thread_callback, NULL); |
821 | } | |
822 | ||
823 | /* Callback for iterate over threads. */ | |
824 | static int | |
825 | discard_all_continuations_thread_callback (struct thread_info *thread, | |
826 | void *data) | |
827 | { | |
828 | struct cleanup *continuation_ptr = &thread->continuations->base; | |
e0627e85 | 829 | |
0ffe5012 | 830 | discard_my_cleanups (&continuation_ptr, NULL); |
95e54da7 PA |
831 | thread->continuations = NULL; |
832 | return 0; | |
833 | } | |
834 | ||
835 | /* Get rid of all the continuations of THREAD. */ | |
836 | void | |
837 | discard_all_continuations_thread (struct thread_info *thread) | |
838 | { | |
839 | discard_all_continuations_thread_callback (thread, NULL); | |
840 | } | |
841 | ||
842 | /* Get rid of all the continuations of all threads. */ | |
843 | void | |
844 | discard_all_continuations (void) | |
845 | { | |
846 | iterate_over_threads (discard_all_continuations_thread_callback, NULL); | |
43ff13b4 | 847 | } |
c2c6d25f | 848 | |
95e54da7 PA |
849 | |
850 | /* Add a continuation to the intermediate continuation list of THREAD. | |
851 | The new continuation will be added at the front. */ | |
c2d11a7d | 852 | void |
95e54da7 PA |
853 | add_intermediate_continuation (struct thread_info *thread, |
854 | void (*continuation_hook) | |
604ead4a PA |
855 | (void *), void *args, |
856 | void (*continuation_free_args) (void *)) | |
c2d11a7d | 857 | { |
95e54da7 | 858 | struct cleanup *as_cleanup = &thread->intermediate_continuations->base; |
604ead4a | 859 | make_cleanup_ftype *continuation_hook_fn = continuation_hook; |
c2d11a7d | 860 | |
0ffe5012 | 861 | make_my_cleanup2 (&as_cleanup, |
604ead4a PA |
862 | continuation_hook_fn, |
863 | args, | |
864 | continuation_free_args); | |
0ffe5012 | 865 | |
95e54da7 | 866 | thread->intermediate_continuations = (struct continuation *) as_cleanup; |
c2d11a7d JM |
867 | } |
868 | ||
869 | /* Walk down the cmd_continuation list, and execute all the | |
870 | continuations. There is a problem though. In some cases new | |
871 | continuations may be added while we are in the middle of this | |
872 | loop. If this happens they will be added in the front, and done | |
873 | before we have a chance of exhausting those that were already | |
874 | there. We need to then save the beginning of the list in a pointer | |
875 | and do the continuations from there on, instead of using the | |
876 | global beginning of list as our iteration pointer.*/ | |
95e54da7 PA |
877 | static int |
878 | do_all_intermediate_continuations_thread_callback (struct thread_info *thread, | |
879 | void *data) | |
880 | { | |
881 | do_all_continuations_ptid (thread->ptid, | |
882 | &thread->intermediate_continuations); | |
883 | return 0; | |
884 | } | |
885 | ||
886 | /* Do all intermediate continuations of thread THREAD. */ | |
c2d11a7d | 887 | void |
95e54da7 | 888 | do_all_intermediate_continuations_thread (struct thread_info *thread) |
c2d11a7d | 889 | { |
95e54da7 PA |
890 | do_all_intermediate_continuations_thread_callback (thread, NULL); |
891 | } | |
c2d11a7d | 892 | |
95e54da7 PA |
893 | /* Do all intermediate continuations of all threads. */ |
894 | void | |
895 | do_all_intermediate_continuations (void) | |
896 | { | |
897 | iterate_over_threads (do_all_intermediate_continuations_thread_callback, NULL); | |
898 | } | |
604ead4a | 899 | |
95e54da7 PA |
900 | /* Callback for iterate over threads. */ |
901 | static int | |
902 | discard_all_intermediate_continuations_thread_callback (struct thread_info *thread, | |
903 | void *data) | |
904 | { | |
905 | struct cleanup *continuation_ptr = &thread->intermediate_continuations->base; | |
e0627e85 | 906 | |
95e54da7 PA |
907 | discard_my_cleanups (&continuation_ptr, NULL); |
908 | thread->intermediate_continuations = NULL; | |
909 | return 0; | |
910 | } | |
c2d11a7d | 911 | |
95e54da7 PA |
912 | /* Get rid of all the intermediate continuations of THREAD. */ |
913 | void | |
914 | discard_all_intermediate_continuations_thread (struct thread_info *thread) | |
915 | { | |
916 | discard_all_intermediate_continuations_thread_callback (thread, NULL); | |
c2d11a7d JM |
917 | } |
918 | ||
95e54da7 | 919 | /* Get rid of all the intermediate continuations of all threads. */ |
c2c6d25f | 920 | void |
fba45db2 | 921 | discard_all_intermediate_continuations (void) |
c2c6d25f | 922 | { |
95e54da7 | 923 | iterate_over_threads (discard_all_intermediate_continuations_thread_callback, NULL); |
c2c6d25f | 924 | } |
c906108c | 925 | \f |
c5aa993b | 926 | |
8731e58e | 927 | |
f5a96129 AC |
928 | /* Print a warning message. The first argument STRING is the warning |
929 | message, used as an fprintf format string, the second is the | |
930 | va_list of arguments for that string. A warning is unfiltered (not | |
931 | paginated) so that the user does not need to page through each | |
932 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
933 | |
934 | void | |
f5a96129 | 935 | vwarning (const char *string, va_list args) |
c906108c | 936 | { |
9a4105ab AC |
937 | if (deprecated_warning_hook) |
938 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
939 | else |
940 | { | |
941 | target_terminal_ours (); | |
942 | wrap_here (""); /* Force out any buffered output */ | |
943 | gdb_flush (gdb_stdout); | |
944 | if (warning_pre_print) | |
306d9ac5 | 945 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
946 | vfprintf_unfiltered (gdb_stderr, string, args); |
947 | fprintf_unfiltered (gdb_stderr, "\n"); | |
948 | va_end (args); | |
949 | } | |
c906108c SS |
950 | } |
951 | ||
952 | /* Print a warning message. | |
953 | The first argument STRING is the warning message, used as a fprintf string, | |
954 | and the remaining args are passed as arguments to it. | |
955 | The primary difference between warnings and errors is that a warning | |
956 | does not force the return to command level. */ | |
957 | ||
c906108c | 958 | void |
8731e58e | 959 | warning (const char *string, ...) |
c906108c SS |
960 | { |
961 | va_list args; | |
e0627e85 | 962 | |
c906108c | 963 | va_start (args, string); |
f5a96129 AC |
964 | vwarning (string, args); |
965 | va_end (args); | |
c906108c SS |
966 | } |
967 | ||
c906108c SS |
968 | /* Print an error message and return to command level. |
969 | The first argument STRING is the error message, used as a fprintf string, | |
970 | and the remaining args are passed as arguments to it. */ | |
971 | ||
c25c4a8b | 972 | void |
4ce44c66 JM |
973 | verror (const char *string, va_list args) |
974 | { | |
6b1b7650 | 975 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
976 | } |
977 | ||
c25c4a8b | 978 | void |
8731e58e | 979 | error (const char *string, ...) |
c906108c SS |
980 | { |
981 | va_list args; | |
e0627e85 | 982 | |
c906108c | 983 | va_start (args, string); |
6b1b7650 | 984 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 | 985 | va_end (args); |
c906108c SS |
986 | } |
987 | ||
d75e3c94 JJ |
988 | /* Print an error message and quit. |
989 | The first argument STRING is the error message, used as a fprintf string, | |
990 | and the remaining args are passed as arguments to it. */ | |
991 | ||
c25c4a8b | 992 | void |
d75e3c94 JJ |
993 | vfatal (const char *string, va_list args) |
994 | { | |
6b1b7650 | 995 | throw_vfatal (string, args); |
d75e3c94 JJ |
996 | } |
997 | ||
c25c4a8b | 998 | void |
d75e3c94 JJ |
999 | fatal (const char *string, ...) |
1000 | { | |
1001 | va_list args; | |
e0627e85 | 1002 | |
d75e3c94 | 1003 | va_start (args, string); |
6b1b7650 | 1004 | throw_vfatal (string, args); |
d75e3c94 JJ |
1005 | va_end (args); |
1006 | } | |
1007 | ||
c25c4a8b | 1008 | void |
d75e3c94 | 1009 | error_stream (struct ui_file *stream) |
2acceee2 | 1010 | { |
759ef836 | 1011 | char *message = ui_file_xstrdup (stream, NULL); |
e0627e85 | 1012 | |
6b1b7650 | 1013 | make_cleanup (xfree, message); |
8a3fe4f8 | 1014 | error (("%s"), message); |
2acceee2 | 1015 | } |
c906108c | 1016 | |
7991dee7 JK |
1017 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
1018 | ||
1019 | static void | |
1020 | dump_core (void) | |
1021 | { | |
1022 | #ifdef HAVE_SETRLIMIT | |
1023 | struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY }; | |
1024 | ||
1025 | setrlimit (RLIMIT_CORE, &rlim); | |
1026 | #endif /* HAVE_SETRLIMIT */ | |
1027 | ||
1028 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
1029 | } | |
1030 | ||
1031 | /* Check whether GDB will be able to dump core using the dump_core function. */ | |
1032 | ||
1033 | static int | |
1034 | can_dump_core (const char *reason) | |
1035 | { | |
1036 | #ifdef HAVE_GETRLIMIT | |
1037 | struct rlimit rlim; | |
1038 | ||
1039 | /* Be quiet and assume we can dump if an error is returned. */ | |
1040 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
1041 | return 1; | |
1042 | ||
1043 | if (rlim.rlim_max == 0) | |
1044 | { | |
1045 | fprintf_unfiltered (gdb_stderr, | |
1046 | _("%s\nUnable to dump core, use `ulimit -c unlimited'" | |
1047 | " before executing GDB next time.\n"), reason); | |
1048 | return 0; | |
1049 | } | |
1050 | #endif /* HAVE_GETRLIMIT */ | |
1051 | ||
1052 | return 1; | |
1053 | } | |
1054 | ||
3c16cced PA |
1055 | /* Allow the user to configure the debugger behavior with respect to |
1056 | what to do when an internal problem is detected. */ | |
1057 | ||
1058 | const char internal_problem_ask[] = "ask"; | |
1059 | const char internal_problem_yes[] = "yes"; | |
1060 | const char internal_problem_no[] = "no"; | |
1061 | static const char *internal_problem_modes[] = | |
1062 | { | |
1063 | internal_problem_ask, | |
1064 | internal_problem_yes, | |
1065 | internal_problem_no, | |
1066 | NULL | |
1067 | }; | |
3c16cced | 1068 | |
dec43320 AC |
1069 | /* Print a message reporting an internal error/warning. Ask the user |
1070 | if they want to continue, dump core, or just exit. Return | |
1071 | something to indicate a quit. */ | |
c906108c | 1072 | |
dec43320 | 1073 | struct internal_problem |
c906108c | 1074 | { |
dec43320 | 1075 | const char *name; |
3c16cced PA |
1076 | const char *should_quit; |
1077 | const char *should_dump_core; | |
dec43320 AC |
1078 | }; |
1079 | ||
1080 | /* Report a problem, internal to GDB, to the user. Once the problem | |
1081 | has been reported, and assuming GDB didn't quit, the caller can | |
1082 | either allow execution to resume or throw an error. */ | |
1083 | ||
a0b31db1 | 1084 | static void ATTRIBUTE_PRINTF (4, 0) |
dec43320 | 1085 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 1086 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 1087 | { |
dec43320 | 1088 | static int dejavu; |
375fc983 | 1089 | int quit_p; |
7be570e7 | 1090 | int dump_core_p; |
714b1282 | 1091 | char *reason; |
c906108c | 1092 | |
dec43320 | 1093 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
1094 | { |
1095 | static char msg[] = "Recursive internal problem.\n"; | |
5d502164 | 1096 | |
714b1282 AC |
1097 | switch (dejavu) |
1098 | { | |
1099 | case 0: | |
1100 | dejavu = 1; | |
1101 | break; | |
1102 | case 1: | |
1103 | dejavu = 2; | |
1104 | fputs_unfiltered (msg, gdb_stderr); | |
7991dee7 | 1105 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
1106 | default: |
1107 | dejavu = 3; | |
bf1d7d9c JB |
1108 | /* Newer GLIBC versions put the warn_unused_result attribute |
1109 | on write, but this is one of those rare cases where | |
1110 | ignoring the return value is correct. Casting to (void) | |
1111 | does not fix this problem. This is the solution suggested | |
1112 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
1113 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
7991dee7 | 1114 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
1115 | exit (1); |
1116 | } | |
1117 | } | |
c906108c | 1118 | |
dec43320 | 1119 | /* Try to get the message out and at the start of a new line. */ |
4261bedc | 1120 | target_terminal_ours (); |
dec43320 AC |
1121 | begin_line (); |
1122 | ||
714b1282 AC |
1123 | /* Create a string containing the full error/warning message. Need |
1124 | to call query with this full string, as otherwize the reason | |
1125 | (error/warning) and question become separated. Format using a | |
1126 | style similar to a compiler error message. Include extra detail | |
1127 | so that the user knows that they are living on the edge. */ | |
1128 | { | |
1129 | char *msg; | |
5d502164 | 1130 | |
e623b504 | 1131 | msg = xstrvprintf (fmt, ap); |
b435e160 | 1132 | reason = xstrprintf ("\ |
714b1282 AC |
1133 | %s:%d: %s: %s\n\ |
1134 | A problem internal to GDB has been detected,\n\ | |
1135 | further debugging may prove unreliable.", file, line, problem->name, msg); | |
1136 | xfree (msg); | |
1137 | make_cleanup (xfree, reason); | |
1138 | } | |
7be570e7 | 1139 | |
3c16cced | 1140 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 1141 | { |
dec43320 | 1142 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
1143 | this lessens the likelihood of GDB going into an infinite |
1144 | loop. */ | |
26bb68be PP |
1145 | if (caution == 0) |
1146 | { | |
1147 | /* Emit the message and quit. */ | |
1148 | fputs_unfiltered (reason, gdb_stderr); | |
1149 | fputs_unfiltered ("\n", gdb_stderr); | |
1150 | quit_p = 1; | |
1151 | } | |
1152 | else | |
1153 | quit_p = query (_("%s\nQuit this debugging session? "), reason); | |
dec43320 | 1154 | } |
3c16cced PA |
1155 | else if (problem->should_quit == internal_problem_yes) |
1156 | quit_p = 1; | |
1157 | else if (problem->should_quit == internal_problem_no) | |
1158 | quit_p = 0; | |
1159 | else | |
1160 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 1161 | |
3c16cced | 1162 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 1163 | { |
7991dee7 JK |
1164 | if (!can_dump_core (reason)) |
1165 | dump_core_p = 0; | |
1166 | else | |
1167 | { | |
1168 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
1169 | `dropping' so that it is easier to see that something went | |
1170 | wrong in GDB. */ | |
1171 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason); | |
1172 | } | |
dec43320 | 1173 | } |
3c16cced | 1174 | else if (problem->should_dump_core == internal_problem_yes) |
7991dee7 | 1175 | dump_core_p = can_dump_core (reason); |
3c16cced PA |
1176 | else if (problem->should_dump_core == internal_problem_no) |
1177 | dump_core_p = 0; | |
1178 | else | |
1179 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 1180 | |
375fc983 | 1181 | if (quit_p) |
7be570e7 JM |
1182 | { |
1183 | if (dump_core_p) | |
7991dee7 | 1184 | dump_core (); |
375fc983 AC |
1185 | else |
1186 | exit (1); | |
7be570e7 JM |
1187 | } |
1188 | else | |
1189 | { | |
1190 | if (dump_core_p) | |
375fc983 | 1191 | { |
9b265ec2 | 1192 | #ifdef HAVE_WORKING_FORK |
375fc983 | 1193 | if (fork () == 0) |
7991dee7 | 1194 | dump_core (); |
9b265ec2 | 1195 | #endif |
375fc983 | 1196 | } |
7be570e7 | 1197 | } |
96baa820 JM |
1198 | |
1199 | dejavu = 0; | |
dec43320 AC |
1200 | } |
1201 | ||
1202 | static struct internal_problem internal_error_problem = { | |
3c16cced | 1203 | "internal-error", internal_problem_ask, internal_problem_ask |
dec43320 AC |
1204 | }; |
1205 | ||
c25c4a8b | 1206 | void |
8731e58e | 1207 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
1208 | { |
1209 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
315a522e | 1210 | deprecated_throw_reason (RETURN_ERROR); |
c906108c SS |
1211 | } |
1212 | ||
c25c4a8b | 1213 | void |
8e65ff28 | 1214 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
1215 | { |
1216 | va_list ap; | |
e0627e85 | 1217 | |
4ce44c66 | 1218 | va_start (ap, string); |
8e65ff28 | 1219 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
1220 | va_end (ap); |
1221 | } | |
1222 | ||
dec43320 | 1223 | static struct internal_problem internal_warning_problem = { |
3c16cced | 1224 | "internal-warning", internal_problem_ask, internal_problem_ask |
dec43320 AC |
1225 | }; |
1226 | ||
1227 | void | |
8731e58e | 1228 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
1229 | { |
1230 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
1231 | } | |
1232 | ||
1233 | void | |
1234 | internal_warning (const char *file, int line, const char *string, ...) | |
1235 | { | |
1236 | va_list ap; | |
e0627e85 | 1237 | |
dec43320 AC |
1238 | va_start (ap, string); |
1239 | internal_vwarning (file, line, string, ap); | |
1240 | va_end (ap); | |
1241 | } | |
1242 | ||
3c16cced PA |
1243 | /* Dummy functions to keep add_prefix_cmd happy. */ |
1244 | ||
1245 | static void | |
1246 | set_internal_problem_cmd (char *args, int from_tty) | |
1247 | { | |
1248 | } | |
1249 | ||
1250 | static void | |
1251 | show_internal_problem_cmd (char *args, int from_tty) | |
1252 | { | |
1253 | } | |
1254 | ||
1255 | /* When GDB reports an internal problem (error or warning) it gives | |
1256 | the user the opportunity to quit GDB and/or create a core file of | |
1257 | the current debug session. This function registers a few commands | |
1258 | that make it possible to specify that GDB should always or never | |
1259 | quit or create a core file, without asking. The commands look | |
1260 | like: | |
1261 | ||
1262 | maint set PROBLEM-NAME quit ask|yes|no | |
1263 | maint show PROBLEM-NAME quit | |
1264 | maint set PROBLEM-NAME corefile ask|yes|no | |
1265 | maint show PROBLEM-NAME corefile | |
1266 | ||
1267 | Where PROBLEM-NAME is currently "internal-error" or | |
1268 | "internal-warning". */ | |
1269 | ||
1270 | static void | |
1271 | add_internal_problem_command (struct internal_problem *problem) | |
1272 | { | |
1273 | struct cmd_list_element **set_cmd_list; | |
1274 | struct cmd_list_element **show_cmd_list; | |
1275 | char *set_doc; | |
1276 | char *show_doc; | |
1277 | ||
1278 | set_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
1279 | show_cmd_list = xmalloc (sizeof (*set_cmd_list)); | |
1280 | *set_cmd_list = NULL; | |
1281 | *show_cmd_list = NULL; | |
1282 | ||
1283 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
1284 | problem->name); | |
1285 | ||
1286 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
1287 | problem->name); | |
1288 | ||
1289 | add_prefix_cmd ((char*) problem->name, | |
1290 | class_maintenance, set_internal_problem_cmd, set_doc, | |
1291 | set_cmd_list, | |
c4f7c687 MK |
1292 | concat ("maintenance set ", problem->name, " ", |
1293 | (char *) NULL), | |
3c16cced PA |
1294 | 0/*allow-unknown*/, &maintenance_set_cmdlist); |
1295 | ||
1296 | add_prefix_cmd ((char*) problem->name, | |
1297 | class_maintenance, show_internal_problem_cmd, show_doc, | |
1298 | show_cmd_list, | |
c4f7c687 MK |
1299 | concat ("maintenance show ", problem->name, " ", |
1300 | (char *) NULL), | |
3c16cced PA |
1301 | 0/*allow-unknown*/, &maintenance_show_cmdlist); |
1302 | ||
1303 | set_doc = xstrprintf (_("\ | |
1304 | Set whether GDB should quit when an %s is detected"), | |
1305 | problem->name); | |
1306 | show_doc = xstrprintf (_("\ | |
1307 | Show whether GDB will quit when an %s is detected"), | |
1308 | problem->name); | |
1309 | add_setshow_enum_cmd ("quit", class_maintenance, | |
1310 | internal_problem_modes, | |
1311 | &problem->should_quit, | |
1312 | set_doc, | |
1313 | show_doc, | |
1314 | NULL, /* help_doc */ | |
1315 | NULL, /* setfunc */ | |
1316 | NULL, /* showfunc */ | |
1317 | set_cmd_list, | |
1318 | show_cmd_list); | |
1319 | ||
1eefb858 TT |
1320 | xfree (set_doc); |
1321 | xfree (show_doc); | |
1322 | ||
3c16cced PA |
1323 | set_doc = xstrprintf (_("\ |
1324 | Set whether GDB should create a core file of GDB when %s is detected"), | |
1325 | problem->name); | |
1326 | show_doc = xstrprintf (_("\ | |
1327 | Show whether GDB will create a core file of GDB when %s is detected"), | |
1328 | problem->name); | |
1329 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
1330 | internal_problem_modes, | |
1331 | &problem->should_dump_core, | |
1332 | set_doc, | |
1333 | show_doc, | |
1334 | NULL, /* help_doc */ | |
1335 | NULL, /* setfunc */ | |
1336 | NULL, /* showfunc */ | |
1337 | set_cmd_list, | |
1338 | show_cmd_list); | |
1eefb858 TT |
1339 | |
1340 | xfree (set_doc); | |
1341 | xfree (show_doc); | |
3c16cced PA |
1342 | } |
1343 | ||
c906108c SS |
1344 | /* Print the system error message for errno, and also mention STRING |
1345 | as the file name for which the error was encountered. | |
1346 | Then return to command level. */ | |
1347 | ||
c25c4a8b | 1348 | void |
6972bc8b | 1349 | perror_with_name (const char *string) |
c906108c SS |
1350 | { |
1351 | char *err; | |
1352 | char *combined; | |
1353 | ||
1354 | err = safe_strerror (errno); | |
1355 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1356 | strcpy (combined, string); | |
1357 | strcat (combined, ": "); | |
1358 | strcat (combined, err); | |
1359 | ||
1360 | /* I understand setting these is a matter of taste. Still, some people | |
1361 | may clear errno but not know about bfd_error. Doing this here is not | |
1362 | unreasonable. */ | |
1363 | bfd_set_error (bfd_error_no_error); | |
1364 | errno = 0; | |
1365 | ||
8a3fe4f8 | 1366 | error (_("%s."), combined); |
c906108c SS |
1367 | } |
1368 | ||
1369 | /* Print the system error message for ERRCODE, and also mention STRING | |
1370 | as the file name for which the error was encountered. */ | |
1371 | ||
1372 | void | |
6972bc8b | 1373 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
1374 | { |
1375 | char *err; | |
1376 | char *combined; | |
1377 | ||
1378 | err = safe_strerror (errcode); | |
1379 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1380 | strcpy (combined, string); | |
1381 | strcat (combined, ": "); | |
1382 | strcat (combined, err); | |
1383 | ||
1384 | /* We want anything which was printed on stdout to come out first, before | |
1385 | this message. */ | |
1386 | gdb_flush (gdb_stdout); | |
1387 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
1388 | } | |
1389 | ||
1390 | /* Control C eventually causes this to be called, at a convenient time. */ | |
1391 | ||
1392 | void | |
fba45db2 | 1393 | quit (void) |
c906108c | 1394 | { |
7be570e7 JM |
1395 | #ifdef __MSDOS__ |
1396 | /* No steenking SIGINT will ever be coming our way when the | |
1397 | program is resumed. Don't lie. */ | |
e06e2353 | 1398 | fatal ("Quit"); |
7be570e7 | 1399 | #else |
c906108c | 1400 | if (job_control |
8731e58e AC |
1401 | /* If there is no terminal switching for this target, then we can't |
1402 | possibly get screwed by the lack of job control. */ | |
c906108c | 1403 | || current_target.to_terminal_ours == NULL) |
e06e2353 | 1404 | fatal ("Quit"); |
c906108c | 1405 | else |
e06e2353 | 1406 | fatal ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 1407 | #endif |
c906108c SS |
1408 | } |
1409 | ||
c906108c | 1410 | \f |
c906108c SS |
1411 | /* Called when a memory allocation fails, with the number of bytes of |
1412 | memory requested in SIZE. */ | |
1413 | ||
c25c4a8b | 1414 | void |
fba45db2 | 1415 | nomem (long size) |
c906108c SS |
1416 | { |
1417 | if (size > 0) | |
1418 | { | |
8e65ff28 | 1419 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 1420 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 1421 | size); |
c906108c SS |
1422 | } |
1423 | else | |
1424 | { | |
e2e0b3e5 | 1425 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
1426 | } |
1427 | } | |
1428 | ||
c0e61796 AC |
1429 | /* The xmalloc() (libiberty.h) family of memory management routines. |
1430 | ||
1431 | These are like the ISO-C malloc() family except that they implement | |
1432 | consistent semantics and guard against typical memory management | |
7936743b | 1433 | problems. */ |
c0e61796 AC |
1434 | |
1435 | /* NOTE: These are declared using PTR to ensure consistency with | |
1436 | "libiberty.h". xfree() is GDB local. */ | |
1437 | ||
5ac79d78 | 1438 | PTR /* ARI: PTR */ |
c0e61796 AC |
1439 | xmalloc (size_t size) |
1440 | { | |
7936743b AC |
1441 | void *val; |
1442 | ||
1443 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1444 | semantics. It never returns NULL. */ | |
1445 | if (size == 0) | |
1446 | size = 1; | |
1447 | ||
5ac79d78 | 1448 | val = malloc (size); /* ARI: malloc */ |
7936743b AC |
1449 | if (val == NULL) |
1450 | nomem (size); | |
1451 | ||
1452 | return (val); | |
c0e61796 | 1453 | } |
c906108c | 1454 | |
5b90c7b5 AC |
1455 | void * |
1456 | xzalloc (size_t size) | |
1457 | { | |
1458 | return xcalloc (1, size); | |
1459 | } | |
1460 | ||
5ac79d78 PM |
1461 | PTR /* ARI: PTR */ |
1462 | xrealloc (PTR ptr, size_t size) /* ARI: PTR */ | |
c906108c | 1463 | { |
0efffb96 AC |
1464 | void *val; |
1465 | ||
1466 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1467 | semantics. It never returns NULL. */ | |
1468 | if (size == 0) | |
1469 | size = 1; | |
1470 | ||
1471 | if (ptr != NULL) | |
5ac79d78 | 1472 | val = realloc (ptr, size); /* ARI: realloc */ |
0efffb96 | 1473 | else |
5ac79d78 | 1474 | val = malloc (size); /* ARI: malloc */ |
0efffb96 AC |
1475 | if (val == NULL) |
1476 | nomem (size); | |
1477 | ||
1478 | return (val); | |
c906108c | 1479 | } |
b8c9b27d | 1480 | |
5ac79d78 | 1481 | PTR /* ARI: PTR */ |
c0e61796 AC |
1482 | xcalloc (size_t number, size_t size) |
1483 | { | |
aa2ee5f6 AC |
1484 | void *mem; |
1485 | ||
1486 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1487 | semantics. It never returns NULL. */ | |
1488 | if (number == 0 || size == 0) | |
1489 | { | |
1490 | number = 1; | |
1491 | size = 1; | |
1492 | } | |
1493 | ||
5ac79d78 | 1494 | mem = calloc (number, size); /* ARI: xcalloc */ |
aa2ee5f6 AC |
1495 | if (mem == NULL) |
1496 | nomem (number * size); | |
1497 | ||
1498 | return mem; | |
c0e61796 | 1499 | } |
b8c9b27d KB |
1500 | |
1501 | void | |
1502 | xfree (void *ptr) | |
1503 | { | |
2dc74dc1 | 1504 | if (ptr != NULL) |
5ac79d78 | 1505 | free (ptr); /* ARI: free */ |
b8c9b27d | 1506 | } |
c906108c | 1507 | \f |
c5aa993b | 1508 | |
76995688 AC |
1509 | /* Like asprintf/vasprintf but get an internal_error if the call |
1510 | fails. */ | |
1511 | ||
9ebf4acf AC |
1512 | char * |
1513 | xstrprintf (const char *format, ...) | |
1514 | { | |
1515 | char *ret; | |
1516 | va_list args; | |
e0627e85 | 1517 | |
9ebf4acf | 1518 | va_start (args, format); |
e623b504 | 1519 | ret = xstrvprintf (format, args); |
9ebf4acf AC |
1520 | va_end (args); |
1521 | return ret; | |
1522 | } | |
1523 | ||
76995688 AC |
1524 | void |
1525 | xasprintf (char **ret, const char *format, ...) | |
1526 | { | |
1527 | va_list args; | |
e0627e85 | 1528 | |
76995688 | 1529 | va_start (args, format); |
e623b504 | 1530 | (*ret) = xstrvprintf (format, args); |
76995688 AC |
1531 | va_end (args); |
1532 | } | |
1533 | ||
1534 | void | |
1535 | xvasprintf (char **ret, const char *format, va_list ap) | |
1536 | { | |
a552edd9 | 1537 | (*ret) = xstrvprintf (format, ap); |
76995688 AC |
1538 | } |
1539 | ||
e623b504 AC |
1540 | char * |
1541 | xstrvprintf (const char *format, va_list ap) | |
1542 | { | |
1543 | char *ret = NULL; | |
1544 | int status = vasprintf (&ret, format, ap); | |
e0627e85 | 1545 | |
46e9880c DJ |
1546 | /* NULL is returned when there was a memory allocation problem, or |
1547 | any other error (for instance, a bad format string). A negative | |
1548 | status (the printed length) with a non-NULL buffer should never | |
1549 | happen, but just to be sure. */ | |
1550 | if (ret == NULL || status < 0) | |
1551 | internal_error (__FILE__, __LINE__, _("vasprintf call failed")); | |
e623b504 AC |
1552 | return ret; |
1553 | } | |
76995688 | 1554 | |
bde2058d MK |
1555 | int |
1556 | xsnprintf (char *str, size_t size, const char *format, ...) | |
1557 | { | |
1558 | va_list args; | |
1559 | int ret; | |
1560 | ||
1561 | va_start (args, format); | |
1562 | ret = vsnprintf (str, size, format, args); | |
1563 | gdb_assert (ret < size); | |
1564 | va_end (args); | |
1565 | ||
1566 | return ret; | |
1567 | } | |
1568 | ||
c906108c SS |
1569 | /* My replacement for the read system call. |
1570 | Used like `read' but keeps going if `read' returns too soon. */ | |
1571 | ||
1572 | int | |
fba45db2 | 1573 | myread (int desc, char *addr, int len) |
c906108c | 1574 | { |
52f0bd74 | 1575 | int val; |
c906108c SS |
1576 | int orglen = len; |
1577 | ||
1578 | while (len > 0) | |
1579 | { | |
1580 | val = read (desc, addr, len); | |
1581 | if (val < 0) | |
1582 | return val; | |
1583 | if (val == 0) | |
1584 | return orglen - len; | |
1585 | len -= val; | |
1586 | addr += val; | |
1587 | } | |
1588 | return orglen; | |
1589 | } | |
1590 | \f | |
1591 | /* Make a copy of the string at PTR with SIZE characters | |
1592 | (and add a null character at the end in the copy). | |
1593 | Uses malloc to get the space. Returns the address of the copy. */ | |
1594 | ||
1595 | char * | |
5565b556 | 1596 | savestring (const char *ptr, size_t size) |
c906108c | 1597 | { |
52f0bd74 | 1598 | char *p = (char *) xmalloc (size + 1); |
e0627e85 | 1599 | |
c906108c SS |
1600 | memcpy (p, ptr, size); |
1601 | p[size] = 0; | |
1602 | return p; | |
1603 | } | |
1604 | ||
c906108c | 1605 | void |
aa1ee363 | 1606 | print_spaces (int n, struct ui_file *file) |
c906108c | 1607 | { |
392a587b | 1608 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1609 | } |
1610 | ||
1611 | /* Print a host address. */ | |
1612 | ||
1613 | void | |
ac16bf07 | 1614 | gdb_print_host_address (const void *addr, struct ui_file *stream) |
c906108c | 1615 | { |
ea8992ce | 1616 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 1617 | } |
c906108c | 1618 | \f |
c5aa993b | 1619 | |
981c7f5a | 1620 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 1621 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
1622 | answer is yes, or default the answer to the specified default |
1623 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
1624 | default answer, or '\0' for no default. | |
cbdeadca JJ |
1625 | CTLSTR is the control string and should end in "? ". It should |
1626 | not say how to answer, because we do that. | |
1627 | ARGS are the arguments passed along with the CTLSTR argument to | |
1628 | printf. */ | |
1629 | ||
a0b31db1 | 1630 | static int ATTRIBUTE_PRINTF (1, 0) |
cbdeadca JJ |
1631 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
1632 | { | |
1633 | int answer; | |
1634 | int ans2; | |
1635 | int retval; | |
1636 | int def_value; | |
1637 | char def_answer, not_def_answer; | |
981c7f5a | 1638 | char *y_string, *n_string, *question; |
cbdeadca JJ |
1639 | |
1640 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
1641 | if (defchar == '\0') |
1642 | { | |
1643 | def_value = 1; | |
1644 | def_answer = 'Y'; | |
1645 | not_def_answer = 'N'; | |
1646 | y_string = "y"; | |
1647 | n_string = "n"; | |
1648 | } | |
1649 | else if (defchar == 'y') | |
cbdeadca JJ |
1650 | { |
1651 | def_value = 1; | |
1652 | def_answer = 'Y'; | |
1653 | not_def_answer = 'N'; | |
1654 | y_string = "[y]"; | |
1655 | n_string = "n"; | |
1656 | } | |
1657 | else | |
1658 | { | |
1659 | def_value = 0; | |
1660 | def_answer = 'N'; | |
1661 | not_def_answer = 'Y'; | |
1662 | y_string = "y"; | |
1663 | n_string = "[n]"; | |
1664 | } | |
1665 | ||
981c7f5a | 1666 | /* Automatically answer the default value if the user did not want |
a502cf95 NR |
1667 | prompts or the command was issued with the server prefix. */ |
1668 | if (! caution || server_command) | |
981c7f5a DJ |
1669 | return def_value; |
1670 | ||
1671 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 1672 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
1673 | way, important error messages don't get lost when talking to GDB |
1674 | over a pipe. */ | |
c63a1f86 | 1675 | if (! input_from_terminal_p ()) |
981c7f5a DJ |
1676 | { |
1677 | wrap_here (""); | |
1678 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1679 | ||
1680 | printf_filtered (_("(%s or %s) [answered %c; input not from terminal]\n"), | |
1681 | y_string, n_string, def_answer); | |
1682 | gdb_flush (gdb_stdout); | |
1683 | ||
1684 | return def_value; | |
1685 | } | |
1686 | ||
9a4105ab | 1687 | if (deprecated_query_hook) |
cbdeadca | 1688 | { |
9a4105ab | 1689 | return deprecated_query_hook (ctlstr, args); |
cbdeadca JJ |
1690 | } |
1691 | ||
981c7f5a DJ |
1692 | /* Format the question outside of the loop, to avoid reusing args. */ |
1693 | question = xstrvprintf (ctlstr, args); | |
1694 | ||
cbdeadca JJ |
1695 | while (1) |
1696 | { | |
1697 | wrap_here (""); /* Flush any buffered output */ | |
1698 | gdb_flush (gdb_stdout); | |
1699 | ||
1700 | if (annotation_level > 1) | |
a3f17187 | 1701 | printf_filtered (("\n\032\032pre-query\n")); |
cbdeadca | 1702 | |
981c7f5a | 1703 | fputs_filtered (question, gdb_stdout); |
a3f17187 | 1704 | printf_filtered (_("(%s or %s) "), y_string, n_string); |
cbdeadca JJ |
1705 | |
1706 | if (annotation_level > 1) | |
a3f17187 | 1707 | printf_filtered (("\n\032\032query\n")); |
cbdeadca JJ |
1708 | |
1709 | wrap_here (""); | |
1710 | gdb_flush (gdb_stdout); | |
1711 | ||
1712 | answer = fgetc (stdin); | |
8626589c JB |
1713 | |
1714 | /* We expect fgetc to block until a character is read. But | |
1715 | this may not be the case if the terminal was opened with | |
1716 | the NONBLOCK flag. In that case, if there is nothing to | |
1717 | read on stdin, fgetc returns EOF, but also sets the error | |
1718 | condition flag on stdin and errno to EAGAIN. With a true | |
1719 | EOF, stdin's error condition flag is not set. | |
1720 | ||
1721 | A situation where this behavior was observed is a pseudo | |
1722 | terminal on AIX. */ | |
1723 | while (answer == EOF && ferror (stdin) && errno == EAGAIN) | |
1724 | { | |
1725 | /* Not a real EOF. Wait a little while and try again until | |
1726 | we read something. */ | |
1727 | clearerr (stdin); | |
1728 | gdb_usleep (10000); | |
1729 | answer = fgetc (stdin); | |
1730 | } | |
1731 | ||
cbdeadca JJ |
1732 | clearerr (stdin); /* in case of C-d */ |
1733 | if (answer == EOF) /* C-d */ | |
1734 | { | |
fa3fd85b | 1735 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
1736 | retval = def_value; |
1737 | break; | |
1738 | } | |
1739 | /* Eat rest of input line, to EOF or newline */ | |
1740 | if (answer != '\n') | |
1741 | do | |
1742 | { | |
1743 | ans2 = fgetc (stdin); | |
1744 | clearerr (stdin); | |
1745 | } | |
1746 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); | |
1747 | ||
1748 | if (answer >= 'a') | |
1749 | answer -= 040; | |
1750 | /* Check answer. For the non-default, the user must specify | |
1751 | the non-default explicitly. */ | |
1752 | if (answer == not_def_answer) | |
1753 | { | |
1754 | retval = !def_value; | |
1755 | break; | |
1756 | } | |
981c7f5a DJ |
1757 | /* Otherwise, if a default was specified, the user may either |
1758 | specify the required input or have it default by entering | |
1759 | nothing. */ | |
1760 | if (answer == def_answer | |
1761 | || (defchar != '\0' && | |
1762 | (answer == '\n' || answer == '\r' || answer == EOF))) | |
cbdeadca JJ |
1763 | { |
1764 | retval = def_value; | |
1765 | break; | |
1766 | } | |
1767 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 1768 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
1769 | y_string, n_string); |
1770 | } | |
1771 | ||
981c7f5a | 1772 | xfree (question); |
cbdeadca | 1773 | if (annotation_level > 1) |
a3f17187 | 1774 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
1775 | return retval; |
1776 | } | |
1777 | \f | |
1778 | ||
1779 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1780 | answer is yes, or 0 if answer is defaulted. | |
1781 | Takes three args which are given to printf to print the question. | |
1782 | The first, a control string, should end in "? ". | |
1783 | It should not say how to answer, because we do that. */ | |
1784 | ||
1785 | int | |
1786 | nquery (const char *ctlstr, ...) | |
1787 | { | |
1788 | va_list args; | |
1789 | ||
1790 | va_start (args, ctlstr); | |
1791 | return defaulted_query (ctlstr, 'n', args); | |
1792 | va_end (args); | |
1793 | } | |
1794 | ||
1795 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1796 | answer is yes, or 1 if answer is defaulted. | |
1797 | Takes three args which are given to printf to print the question. | |
1798 | The first, a control string, should end in "? ". | |
1799 | It should not say how to answer, because we do that. */ | |
1800 | ||
1801 | int | |
1802 | yquery (const char *ctlstr, ...) | |
1803 | { | |
1804 | va_list args; | |
1805 | ||
1806 | va_start (args, ctlstr); | |
1807 | return defaulted_query (ctlstr, 'y', args); | |
1808 | va_end (args); | |
1809 | } | |
1810 | ||
981c7f5a DJ |
1811 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
1812 | Takes three args which are given to printf to print the question. | |
1813 | The first, a control string, should end in "? ". | |
1814 | It should not say how to answer, because we do that. */ | |
1815 | ||
1816 | int | |
1817 | query (const char *ctlstr, ...) | |
1818 | { | |
1819 | va_list args; | |
1820 | ||
1821 | va_start (args, ctlstr); | |
1822 | return defaulted_query (ctlstr, '\0', args); | |
1823 | va_end (args); | |
1824 | } | |
1825 | ||
6c7a06a3 TT |
1826 | /* A helper for parse_escape that converts a host character to a |
1827 | target character. C is the host character. If conversion is | |
1828 | possible, then the target character is stored in *TARGET_C and the | |
1829 | function returns 1. Otherwise, the function returns 0. */ | |
1830 | ||
1831 | static int | |
f870a310 | 1832 | host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c) |
234b45d4 | 1833 | { |
6c7a06a3 TT |
1834 | struct obstack host_data; |
1835 | char the_char = c; | |
1836 | struct cleanup *cleanups; | |
1837 | int result = 0; | |
234b45d4 | 1838 | |
6c7a06a3 TT |
1839 | obstack_init (&host_data); |
1840 | cleanups = make_cleanup_obstack_free (&host_data); | |
234b45d4 | 1841 | |
f870a310 | 1842 | convert_between_encodings (target_charset (gdbarch), host_charset (), |
6c7a06a3 TT |
1843 | &the_char, 1, 1, &host_data, translit_none); |
1844 | ||
1845 | if (obstack_object_size (&host_data) == 1) | |
1846 | { | |
1847 | result = 1; | |
1848 | *target_c = *(char *) obstack_base (&host_data); | |
1849 | } | |
1850 | ||
1851 | do_cleanups (cleanups); | |
1852 | return result; | |
234b45d4 KB |
1853 | } |
1854 | ||
c906108c SS |
1855 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1856 | containing a pointer to the string to parse. That pointer | |
1857 | should point to the character after the \. That pointer | |
1858 | is updated past the characters we use. The value of the | |
1859 | escape sequence is returned. | |
1860 | ||
1861 | A negative value means the sequence \ newline was seen, | |
1862 | which is supposed to be equivalent to nothing at all. | |
1863 | ||
1864 | If \ is followed by a null character, we return a negative | |
1865 | value and leave the string pointer pointing at the null character. | |
1866 | ||
1867 | If \ is followed by 000, we return 0 and leave the string pointer | |
1868 | after the zeros. A value of 0 does not mean end of string. */ | |
1869 | ||
1870 | int | |
f870a310 | 1871 | parse_escape (struct gdbarch *gdbarch, char **string_ptr) |
c906108c | 1872 | { |
27e3013d | 1873 | int target_char = -2; /* initialize to avoid GCC warnings */ |
52f0bd74 | 1874 | int c = *(*string_ptr)++; |
e0627e85 | 1875 | |
6c7a06a3 TT |
1876 | switch (c) |
1877 | { | |
8731e58e AC |
1878 | case '\n': |
1879 | return -2; | |
1880 | case 0: | |
1881 | (*string_ptr)--; | |
1882 | return 0; | |
8731e58e AC |
1883 | |
1884 | case '0': | |
1885 | case '1': | |
1886 | case '2': | |
1887 | case '3': | |
1888 | case '4': | |
1889 | case '5': | |
1890 | case '6': | |
1891 | case '7': | |
1892 | { | |
6c7a06a3 | 1893 | int i = host_hex_value (c); |
aa1ee363 | 1894 | int count = 0; |
8731e58e AC |
1895 | while (++count < 3) |
1896 | { | |
5cb316ef | 1897 | c = (**string_ptr); |
6c7a06a3 | 1898 | if (isdigit (c) && c != '8' && c != '9') |
8731e58e | 1899 | { |
5cb316ef | 1900 | (*string_ptr)++; |
8731e58e | 1901 | i *= 8; |
6c7a06a3 | 1902 | i += host_hex_value (c); |
8731e58e AC |
1903 | } |
1904 | else | |
1905 | { | |
8731e58e AC |
1906 | break; |
1907 | } | |
1908 | } | |
1909 | return i; | |
1910 | } | |
6c7a06a3 TT |
1911 | |
1912 | case 'a': | |
1913 | c = '\a'; | |
1914 | break; | |
1915 | case 'b': | |
1916 | c = '\b'; | |
1917 | break; | |
1918 | case 'f': | |
1919 | c = '\f'; | |
1920 | break; | |
1921 | case 'n': | |
1922 | c = '\n'; | |
1923 | break; | |
1924 | case 'r': | |
1925 | c = '\r'; | |
1926 | break; | |
1927 | case 't': | |
1928 | c = '\t'; | |
1929 | break; | |
1930 | case 'v': | |
1931 | c = '\v'; | |
1932 | break; | |
1933 | ||
1934 | default: | |
1935 | break; | |
1936 | } | |
1937 | ||
f870a310 | 1938 | if (!host_char_to_target (gdbarch, c, &target_char)) |
6c7a06a3 TT |
1939 | error |
1940 | ("The escape sequence `\%c' is equivalent to plain `%c', which" | |
1941 | " has no equivalent\n" "in the `%s' character set.", c, c, | |
f870a310 | 1942 | target_charset (gdbarch)); |
6c7a06a3 | 1943 | return target_char; |
c906108c SS |
1944 | } |
1945 | \f | |
1946 | /* Print the character C on STREAM as part of the contents of a literal | |
1947 | string whose delimiter is QUOTER. Note that this routine should only | |
1948 | be call for printing things which are independent of the language | |
1949 | of the program being debugged. */ | |
1950 | ||
43e526b9 | 1951 | static void |
74f832da | 1952 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
bee0189a DJ |
1953 | void (*do_fprintf) (struct ui_file *, const char *, ...) |
1954 | ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter) | |
c906108c | 1955 | { |
c906108c SS |
1956 | c &= 0xFF; /* Avoid sign bit follies */ |
1957 | ||
c5aa993b JM |
1958 | if (c < 0x20 || /* Low control chars */ |
1959 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1960 | (sevenbit_strings && c >= 0x80)) | |
1961 | { /* high order bit set */ | |
1962 | switch (c) | |
1963 | { | |
1964 | case '\n': | |
43e526b9 | 1965 | do_fputs ("\\n", stream); |
c5aa993b JM |
1966 | break; |
1967 | case '\b': | |
43e526b9 | 1968 | do_fputs ("\\b", stream); |
c5aa993b JM |
1969 | break; |
1970 | case '\t': | |
43e526b9 | 1971 | do_fputs ("\\t", stream); |
c5aa993b JM |
1972 | break; |
1973 | case '\f': | |
43e526b9 | 1974 | do_fputs ("\\f", stream); |
c5aa993b JM |
1975 | break; |
1976 | case '\r': | |
43e526b9 | 1977 | do_fputs ("\\r", stream); |
c5aa993b JM |
1978 | break; |
1979 | case '\033': | |
43e526b9 | 1980 | do_fputs ("\\e", stream); |
c5aa993b JM |
1981 | break; |
1982 | case '\007': | |
43e526b9 | 1983 | do_fputs ("\\a", stream); |
c5aa993b JM |
1984 | break; |
1985 | default: | |
43e526b9 | 1986 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1987 | break; |
1988 | } | |
1989 | } | |
1990 | else | |
1991 | { | |
1992 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1993 | do_fputs ("\\", stream); |
1994 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1995 | } |
c906108c | 1996 | } |
43e526b9 JM |
1997 | |
1998 | /* Print the character C on STREAM as part of the contents of a | |
1999 | literal string whose delimiter is QUOTER. Note that these routines | |
2000 | should only be call for printing things which are independent of | |
2001 | the language of the program being debugged. */ | |
2002 | ||
2003 | void | |
fba45db2 | 2004 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
2005 | { |
2006 | while (*str) | |
2007 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
2008 | } | |
2009 | ||
2010 | void | |
fba45db2 | 2011 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
2012 | { |
2013 | while (*str) | |
2014 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
2015 | } | |
2016 | ||
0876f84a DJ |
2017 | void |
2018 | fputstrn_filtered (const char *str, int n, int quoter, | |
2019 | struct ui_file *stream) | |
2020 | { | |
2021 | int i; | |
e0627e85 | 2022 | |
0876f84a DJ |
2023 | for (i = 0; i < n; i++) |
2024 | printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter); | |
2025 | } | |
2026 | ||
43e526b9 | 2027 | void |
8731e58e AC |
2028 | fputstrn_unfiltered (const char *str, int n, int quoter, |
2029 | struct ui_file *stream) | |
43e526b9 JM |
2030 | { |
2031 | int i; | |
5d502164 | 2032 | |
43e526b9 JM |
2033 | for (i = 0; i < n; i++) |
2034 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
2035 | } | |
c906108c | 2036 | \f |
c5aa993b | 2037 | |
c906108c SS |
2038 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
2039 | static unsigned int lines_per_page; | |
920d2a44 AC |
2040 | static void |
2041 | show_lines_per_page (struct ui_file *file, int from_tty, | |
2042 | struct cmd_list_element *c, const char *value) | |
2043 | { | |
2044 | fprintf_filtered (file, _("\ | |
2045 | Number of lines gdb thinks are in a page is %s.\n"), | |
2046 | value); | |
2047 | } | |
eb0d3137 | 2048 | |
cbfbd72a | 2049 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 2050 | static unsigned int chars_per_line; |
920d2a44 AC |
2051 | static void |
2052 | show_chars_per_line (struct ui_file *file, int from_tty, | |
2053 | struct cmd_list_element *c, const char *value) | |
2054 | { | |
2055 | fprintf_filtered (file, _("\ | |
2056 | Number of characters gdb thinks are in a line is %s.\n"), | |
2057 | value); | |
2058 | } | |
eb0d3137 | 2059 | |
c906108c SS |
2060 | /* Current count of lines printed on this page, chars on this line. */ |
2061 | static unsigned int lines_printed, chars_printed; | |
2062 | ||
2063 | /* Buffer and start column of buffered text, for doing smarter word- | |
2064 | wrapping. When someone calls wrap_here(), we start buffering output | |
2065 | that comes through fputs_filtered(). If we see a newline, we just | |
2066 | spit it out and forget about the wrap_here(). If we see another | |
2067 | wrap_here(), we spit it out and remember the newer one. If we see | |
2068 | the end of the line, we spit out a newline, the indent, and then | |
2069 | the buffered output. */ | |
2070 | ||
2071 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
2072 | are waiting to be output (they have already been counted in chars_printed). | |
2073 | When wrap_buffer[0] is null, the buffer is empty. */ | |
2074 | static char *wrap_buffer; | |
2075 | ||
2076 | /* Pointer in wrap_buffer to the next character to fill. */ | |
2077 | static char *wrap_pointer; | |
2078 | ||
2079 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
2080 | is non-zero. */ | |
2081 | static char *wrap_indent; | |
2082 | ||
2083 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
2084 | is not in effect. */ | |
2085 | static int wrap_column; | |
c906108c | 2086 | \f |
c5aa993b | 2087 | |
eb0d3137 MK |
2088 | /* Inialize the number of lines per page and chars per line. */ |
2089 | ||
c906108c | 2090 | void |
fba45db2 | 2091 | init_page_info (void) |
c906108c | 2092 | { |
5da1313b JK |
2093 | if (batch_flag) |
2094 | { | |
2095 | lines_per_page = UINT_MAX; | |
2096 | chars_per_line = UINT_MAX; | |
2097 | } | |
2098 | else | |
c906108c | 2099 | #if defined(TUI) |
5ecb1806 | 2100 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
2101 | #endif |
2102 | { | |
eb0d3137 | 2103 | int rows, cols; |
c906108c | 2104 | |
ec145965 EZ |
2105 | #if defined(__GO32__) |
2106 | rows = ScreenRows (); | |
2107 | cols = ScreenCols (); | |
2108 | lines_per_page = rows; | |
2109 | chars_per_line = cols; | |
2110 | #else | |
eb0d3137 MK |
2111 | /* Make sure Readline has initialized its terminal settings. */ |
2112 | rl_reset_terminal (NULL); | |
c906108c | 2113 | |
eb0d3137 MK |
2114 | /* Get the screen size from Readline. */ |
2115 | rl_get_screen_size (&rows, &cols); | |
2116 | lines_per_page = rows; | |
2117 | chars_per_line = cols; | |
c906108c | 2118 | |
eb0d3137 MK |
2119 | /* Readline should have fetched the termcap entry for us. */ |
2120 | if (tgetnum ("li") < 0 || getenv ("EMACS")) | |
2121 | { | |
2122 | /* The number of lines per page is not mentioned in the | |
2123 | terminal description. This probably means that paging is | |
2124 | not useful (e.g. emacs shell window), so disable paging. */ | |
2125 | lines_per_page = UINT_MAX; | |
2126 | } | |
c906108c | 2127 | |
eb0d3137 | 2128 | /* FIXME: Get rid of this junk. */ |
c906108c | 2129 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) |
c906108c SS |
2130 | SIGWINCH_HANDLER (SIGWINCH); |
2131 | #endif | |
eb0d3137 | 2132 | |
c906108c | 2133 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 2134 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 2135 | lines_per_page = UINT_MAX; |
eb0d3137 | 2136 | #endif |
ec145965 | 2137 | } |
eb0d3137 MK |
2138 | |
2139 | set_screen_size (); | |
c5aa993b | 2140 | set_width (); |
c906108c SS |
2141 | } |
2142 | ||
5da1313b JK |
2143 | /* Helper for make_cleanup_restore_page_info. */ |
2144 | ||
2145 | static void | |
2146 | do_restore_page_info_cleanup (void *arg) | |
2147 | { | |
2148 | set_screen_size (); | |
2149 | set_width (); | |
2150 | } | |
2151 | ||
2152 | /* Provide cleanup for restoring the terminal size. */ | |
2153 | ||
2154 | struct cleanup * | |
2155 | make_cleanup_restore_page_info (void) | |
2156 | { | |
2157 | struct cleanup *back_to; | |
2158 | ||
2159 | back_to = make_cleanup (do_restore_page_info_cleanup, NULL); | |
2160 | make_cleanup_restore_uinteger (&lines_per_page); | |
2161 | make_cleanup_restore_uinteger (&chars_per_line); | |
2162 | ||
2163 | return back_to; | |
2164 | } | |
2165 | ||
2166 | /* Temporarily set BATCH_FLAG and the associated unlimited terminal size. | |
2167 | Provide cleanup for restoring the original state. */ | |
2168 | ||
2169 | struct cleanup * | |
2170 | set_batch_flag_and_make_cleanup_restore_page_info (void) | |
2171 | { | |
2172 | struct cleanup *back_to = make_cleanup_restore_page_info (); | |
2173 | ||
2174 | make_cleanup_restore_integer (&batch_flag); | |
2175 | batch_flag = 1; | |
2176 | init_page_info (); | |
2177 | ||
2178 | return back_to; | |
2179 | } | |
2180 | ||
eb0d3137 MK |
2181 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
2182 | ||
2183 | static void | |
2184 | set_screen_size (void) | |
2185 | { | |
2186 | int rows = lines_per_page; | |
2187 | int cols = chars_per_line; | |
2188 | ||
2189 | if (rows <= 0) | |
2190 | rows = INT_MAX; | |
2191 | ||
2192 | if (cols <= 0) | |
0caa462c | 2193 | cols = INT_MAX; |
eb0d3137 MK |
2194 | |
2195 | /* Update Readline's idea of the terminal size. */ | |
2196 | rl_set_screen_size (rows, cols); | |
2197 | } | |
2198 | ||
2199 | /* Reinitialize WRAP_BUFFER according to the current value of | |
2200 | CHARS_PER_LINE. */ | |
2201 | ||
c906108c | 2202 | static void |
fba45db2 | 2203 | set_width (void) |
c906108c SS |
2204 | { |
2205 | if (chars_per_line == 0) | |
c5aa993b | 2206 | init_page_info (); |
c906108c SS |
2207 | |
2208 | if (!wrap_buffer) | |
2209 | { | |
2210 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
2211 | wrap_buffer[0] = '\0'; | |
2212 | } | |
2213 | else | |
2214 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 2215 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
2216 | } |
2217 | ||
c5aa993b | 2218 | static void |
fba45db2 | 2219 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 2220 | { |
eb0d3137 | 2221 | set_screen_size (); |
c906108c SS |
2222 | set_width (); |
2223 | } | |
2224 | ||
eb0d3137 MK |
2225 | static void |
2226 | set_height_command (char *args, int from_tty, struct cmd_list_element *c) | |
2227 | { | |
2228 | set_screen_size (); | |
2229 | } | |
2230 | ||
c906108c SS |
2231 | /* Wait, so the user can read what's on the screen. Prompt the user |
2232 | to continue by pressing RETURN. */ | |
2233 | ||
2234 | static void | |
fba45db2 | 2235 | prompt_for_continue (void) |
c906108c SS |
2236 | { |
2237 | char *ignore; | |
2238 | char cont_prompt[120]; | |
2239 | ||
2240 | if (annotation_level > 1) | |
a3f17187 | 2241 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
2242 | |
2243 | strcpy (cont_prompt, | |
2244 | "---Type <return> to continue, or q <return> to quit---"); | |
2245 | if (annotation_level > 1) | |
2246 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
2247 | ||
2248 | /* We must do this *before* we call gdb_readline, else it will eventually | |
2249 | call us -- thinking that we're trying to print beyond the end of the | |
2250 | screen. */ | |
2251 | reinitialize_more_filter (); | |
2252 | ||
2253 | immediate_quit++; | |
2254 | /* On a real operating system, the user can quit with SIGINT. | |
2255 | But not on GO32. | |
2256 | ||
2257 | 'q' is provided on all systems so users don't have to change habits | |
2258 | from system to system, and because telling them what to do in | |
2259 | the prompt is more user-friendly than expecting them to think of | |
2260 | SIGINT. */ | |
2261 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
2262 | whereas control-C to gdb_readline will cause the user to get dumped | |
2263 | out to DOS. */ | |
b4f5539f | 2264 | ignore = gdb_readline_wrapper (cont_prompt); |
c906108c SS |
2265 | |
2266 | if (annotation_level > 1) | |
a3f17187 | 2267 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c SS |
2268 | |
2269 | if (ignore) | |
2270 | { | |
2271 | char *p = ignore; | |
5d502164 | 2272 | |
c906108c SS |
2273 | while (*p == ' ' || *p == '\t') |
2274 | ++p; | |
2275 | if (p[0] == 'q') | |
362646f5 | 2276 | async_request_quit (0); |
b8c9b27d | 2277 | xfree (ignore); |
c906108c SS |
2278 | } |
2279 | immediate_quit--; | |
2280 | ||
2281 | /* Now we have to do this again, so that GDB will know that it doesn't | |
2282 | need to save the ---Type <return>--- line at the top of the screen. */ | |
2283 | reinitialize_more_filter (); | |
2284 | ||
2285 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ | |
2286 | } | |
2287 | ||
2288 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
2289 | ||
2290 | void | |
fba45db2 | 2291 | reinitialize_more_filter (void) |
c906108c SS |
2292 | { |
2293 | lines_printed = 0; | |
2294 | chars_printed = 0; | |
2295 | } | |
2296 | ||
2297 | /* Indicate that if the next sequence of characters overflows the line, | |
2298 | a newline should be inserted here rather than when it hits the end. | |
2299 | If INDENT is non-null, it is a string to be printed to indent the | |
2300 | wrapped part on the next line. INDENT must remain accessible until | |
2301 | the next call to wrap_here() or until a newline is printed through | |
2302 | fputs_filtered(). | |
2303 | ||
2304 | If the line is already overfull, we immediately print a newline and | |
2305 | the indentation, and disable further wrapping. | |
2306 | ||
2307 | If we don't know the width of lines, but we know the page height, | |
2308 | we must not wrap words, but should still keep track of newlines | |
2309 | that were explicitly printed. | |
2310 | ||
2311 | INDENT should not contain tabs, as that will mess up the char count | |
2312 | on the next line. FIXME. | |
2313 | ||
2314 | This routine is guaranteed to force out any output which has been | |
2315 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
2316 | used to force out output from the wrap_buffer. */ | |
2317 | ||
2318 | void | |
fba45db2 | 2319 | wrap_here (char *indent) |
c906108c SS |
2320 | { |
2321 | /* This should have been allocated, but be paranoid anyway. */ | |
2322 | if (!wrap_buffer) | |
e2e0b3e5 | 2323 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
2324 | |
2325 | if (wrap_buffer[0]) | |
2326 | { | |
2327 | *wrap_pointer = '\0'; | |
2328 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
2329 | } | |
2330 | wrap_pointer = wrap_buffer; | |
2331 | wrap_buffer[0] = '\0'; | |
c5aa993b | 2332 | if (chars_per_line == UINT_MAX) /* No line overflow checking */ |
c906108c SS |
2333 | { |
2334 | wrap_column = 0; | |
2335 | } | |
2336 | else if (chars_printed >= chars_per_line) | |
2337 | { | |
2338 | puts_filtered ("\n"); | |
2339 | if (indent != NULL) | |
2340 | puts_filtered (indent); | |
2341 | wrap_column = 0; | |
2342 | } | |
2343 | else | |
2344 | { | |
2345 | wrap_column = chars_printed; | |
2346 | if (indent == NULL) | |
2347 | wrap_indent = ""; | |
2348 | else | |
2349 | wrap_indent = indent; | |
2350 | } | |
2351 | } | |
2352 | ||
4a351cef AF |
2353 | /* Print input string to gdb_stdout, filtered, with wrap, |
2354 | arranging strings in columns of n chars. String can be | |
2355 | right or left justified in the column. Never prints | |
2356 | trailing spaces. String should never be longer than | |
2357 | width. FIXME: this could be useful for the EXAMINE | |
2358 | command, which currently doesn't tabulate very well */ | |
2359 | ||
2360 | void | |
2361 | puts_filtered_tabular (char *string, int width, int right) | |
2362 | { | |
2363 | int spaces = 0; | |
2364 | int stringlen; | |
2365 | char *spacebuf; | |
2366 | ||
2367 | gdb_assert (chars_per_line > 0); | |
2368 | if (chars_per_line == UINT_MAX) | |
2369 | { | |
2370 | fputs_filtered (string, gdb_stdout); | |
2371 | fputs_filtered ("\n", gdb_stdout); | |
2372 | return; | |
2373 | } | |
2374 | ||
2375 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
2376 | fputs_filtered ("\n", gdb_stdout); | |
2377 | ||
2378 | if (width >= chars_per_line) | |
2379 | width = chars_per_line - 1; | |
2380 | ||
2381 | stringlen = strlen (string); | |
2382 | ||
2383 | if (chars_printed > 0) | |
2384 | spaces = width - (chars_printed - 1) % width - 1; | |
2385 | if (right) | |
2386 | spaces += width - stringlen; | |
2387 | ||
2388 | spacebuf = alloca (spaces + 1); | |
2389 | spacebuf[spaces] = '\0'; | |
2390 | while (spaces--) | |
2391 | spacebuf[spaces] = ' '; | |
2392 | ||
2393 | fputs_filtered (spacebuf, gdb_stdout); | |
2394 | fputs_filtered (string, gdb_stdout); | |
2395 | } | |
2396 | ||
2397 | ||
c906108c SS |
2398 | /* Ensure that whatever gets printed next, using the filtered output |
2399 | commands, starts at the beginning of the line. I.E. if there is | |
2400 | any pending output for the current line, flush it and start a new | |
2401 | line. Otherwise do nothing. */ | |
2402 | ||
2403 | void | |
fba45db2 | 2404 | begin_line (void) |
c906108c SS |
2405 | { |
2406 | if (chars_printed > 0) | |
2407 | { | |
2408 | puts_filtered ("\n"); | |
2409 | } | |
2410 | } | |
2411 | ||
ac9a91a7 | 2412 | |
c906108c SS |
2413 | /* Like fputs but if FILTER is true, pause after every screenful. |
2414 | ||
2415 | Regardless of FILTER can wrap at points other than the final | |
2416 | character of a line. | |
2417 | ||
2418 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
2419 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
2420 | anything. | |
2421 | ||
2422 | Note that a longjmp to top level may occur in this routine (only if | |
2423 | FILTER is true) (since prompt_for_continue may do so) so this | |
2424 | routine should not be called when cleanups are not in place. */ | |
2425 | ||
2426 | static void | |
fba45db2 KB |
2427 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
2428 | int filter) | |
c906108c SS |
2429 | { |
2430 | const char *lineptr; | |
2431 | ||
2432 | if (linebuffer == 0) | |
2433 | return; | |
2434 | ||
2435 | /* Don't do any filtering if it is disabled. */ | |
390a8aca | 2436 | if (stream != gdb_stdout |
c63a1f86 JK |
2437 | || ! pagination_enabled |
2438 | || ! input_from_terminal_p () | |
390a8aca | 2439 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) |
58dadb1b | 2440 | || top_level_interpreter () == NULL |
390a8aca | 2441 | || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) |
c906108c SS |
2442 | { |
2443 | fputs_unfiltered (linebuffer, stream); | |
2444 | return; | |
2445 | } | |
2446 | ||
2447 | /* Go through and output each character. Show line extension | |
2448 | when this is necessary; prompt user for new page when this is | |
2449 | necessary. */ | |
c5aa993b | 2450 | |
c906108c SS |
2451 | lineptr = linebuffer; |
2452 | while (*lineptr) | |
2453 | { | |
2454 | /* Possible new page. */ | |
8731e58e | 2455 | if (filter && (lines_printed >= lines_per_page - 1)) |
c906108c SS |
2456 | prompt_for_continue (); |
2457 | ||
2458 | while (*lineptr && *lineptr != '\n') | |
2459 | { | |
2460 | /* Print a single line. */ | |
2461 | if (*lineptr == '\t') | |
2462 | { | |
2463 | if (wrap_column) | |
2464 | *wrap_pointer++ = '\t'; | |
2465 | else | |
2466 | fputc_unfiltered ('\t', stream); | |
2467 | /* Shifting right by 3 produces the number of tab stops | |
2468 | we have already passed, and then adding one and | |
c5aa993b | 2469 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
2470 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
2471 | lineptr++; | |
2472 | } | |
2473 | else | |
2474 | { | |
2475 | if (wrap_column) | |
2476 | *wrap_pointer++ = *lineptr; | |
2477 | else | |
c5aa993b | 2478 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
2479 | chars_printed++; |
2480 | lineptr++; | |
2481 | } | |
c5aa993b | 2482 | |
c906108c SS |
2483 | if (chars_printed >= chars_per_line) |
2484 | { | |
2485 | unsigned int save_chars = chars_printed; | |
2486 | ||
2487 | chars_printed = 0; | |
2488 | lines_printed++; | |
2489 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
2490 | if chars_per_line is right, we probably just overflowed |
2491 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
2492 | if (wrap_column) |
2493 | fputc_unfiltered ('\n', stream); | |
2494 | ||
2495 | /* Possible new page. */ | |
2496 | if (lines_printed >= lines_per_page - 1) | |
2497 | prompt_for_continue (); | |
2498 | ||
2499 | /* Now output indentation and wrapped string */ | |
2500 | if (wrap_column) | |
2501 | { | |
2502 | fputs_unfiltered (wrap_indent, stream); | |
8731e58e | 2503 | *wrap_pointer = '\0'; /* Null-terminate saved stuff */ |
c5aa993b | 2504 | fputs_unfiltered (wrap_buffer, stream); /* and eject it */ |
c906108c SS |
2505 | /* FIXME, this strlen is what prevents wrap_indent from |
2506 | containing tabs. However, if we recurse to print it | |
2507 | and count its chars, we risk trouble if wrap_indent is | |
2508 | longer than (the user settable) chars_per_line. | |
2509 | Note also that this can set chars_printed > chars_per_line | |
2510 | if we are printing a long string. */ | |
2511 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 2512 | + (save_chars - wrap_column); |
c906108c SS |
2513 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
2514 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
2515 | wrap_column = 0; /* And disable fancy wrap */ |
2516 | } | |
c906108c SS |
2517 | } |
2518 | } | |
2519 | ||
2520 | if (*lineptr == '\n') | |
2521 | { | |
2522 | chars_printed = 0; | |
c5aa993b | 2523 | wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */ |
c906108c SS |
2524 | lines_printed++; |
2525 | fputc_unfiltered ('\n', stream); | |
2526 | lineptr++; | |
2527 | } | |
2528 | } | |
2529 | } | |
2530 | ||
2531 | void | |
fba45db2 | 2532 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
2533 | { |
2534 | fputs_maybe_filtered (linebuffer, stream, 1); | |
2535 | } | |
2536 | ||
2537 | int | |
fba45db2 | 2538 | putchar_unfiltered (int c) |
c906108c | 2539 | { |
11cf8741 | 2540 | char buf = c; |
e0627e85 | 2541 | |
d9fcf2fb | 2542 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
2543 | return c; |
2544 | } | |
2545 | ||
d1f4cff8 AC |
2546 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
2547 | May return nonlocally. */ | |
2548 | ||
2549 | int | |
2550 | putchar_filtered (int c) | |
2551 | { | |
2552 | return fputc_filtered (c, gdb_stdout); | |
2553 | } | |
2554 | ||
c906108c | 2555 | int |
fba45db2 | 2556 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 2557 | { |
11cf8741 | 2558 | char buf = c; |
e0627e85 | 2559 | |
d9fcf2fb | 2560 | ui_file_write (stream, &buf, 1); |
c906108c SS |
2561 | return c; |
2562 | } | |
2563 | ||
2564 | int | |
fba45db2 | 2565 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
2566 | { |
2567 | char buf[2]; | |
2568 | ||
2569 | buf[0] = c; | |
2570 | buf[1] = 0; | |
2571 | fputs_filtered (buf, stream); | |
2572 | return c; | |
2573 | } | |
2574 | ||
2575 | /* puts_debug is like fputs_unfiltered, except it prints special | |
2576 | characters in printable fashion. */ | |
2577 | ||
2578 | void | |
fba45db2 | 2579 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
2580 | { |
2581 | int ch; | |
2582 | ||
2583 | /* Print prefix and suffix after each line. */ | |
2584 | static int new_line = 1; | |
2585 | static int return_p = 0; | |
2586 | static char *prev_prefix = ""; | |
2587 | static char *prev_suffix = ""; | |
2588 | ||
2589 | if (*string == '\n') | |
2590 | return_p = 0; | |
2591 | ||
2592 | /* If the prefix is changing, print the previous suffix, a new line, | |
2593 | and the new prefix. */ | |
c5aa993b | 2594 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2595 | { |
9846de1b JM |
2596 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2597 | fputs_unfiltered ("\n", gdb_stdlog); | |
2598 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2599 | } |
2600 | ||
2601 | /* Print prefix if we printed a newline during the previous call. */ | |
2602 | if (new_line) | |
2603 | { | |
2604 | new_line = 0; | |
9846de1b | 2605 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2606 | } |
2607 | ||
2608 | prev_prefix = prefix; | |
2609 | prev_suffix = suffix; | |
2610 | ||
2611 | /* Output characters in a printable format. */ | |
2612 | while ((ch = *string++) != '\0') | |
2613 | { | |
2614 | switch (ch) | |
c5aa993b | 2615 | { |
c906108c SS |
2616 | default: |
2617 | if (isprint (ch)) | |
9846de1b | 2618 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2619 | |
2620 | else | |
9846de1b | 2621 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2622 | break; |
2623 | ||
c5aa993b JM |
2624 | case '\\': |
2625 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2626 | break; | |
2627 | case '\b': | |
2628 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2629 | break; | |
2630 | case '\f': | |
2631 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2632 | break; | |
2633 | case '\n': | |
2634 | new_line = 1; | |
2635 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2636 | break; | |
2637 | case '\r': | |
2638 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2639 | break; | |
2640 | case '\t': | |
2641 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2642 | break; | |
2643 | case '\v': | |
2644 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2645 | break; | |
2646 | } | |
c906108c SS |
2647 | |
2648 | return_p = ch == '\r'; | |
2649 | } | |
2650 | ||
2651 | /* Print suffix if we printed a newline. */ | |
2652 | if (new_line) | |
2653 | { | |
9846de1b JM |
2654 | fputs_unfiltered (suffix, gdb_stdlog); |
2655 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2656 | } |
2657 | } | |
2658 | ||
2659 | ||
2660 | /* Print a variable number of ARGS using format FORMAT. If this | |
2661 | information is going to put the amount written (since the last call | |
2662 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2663 | call prompt_for_continue to get the users permision to continue. | |
2664 | ||
2665 | Unlike fprintf, this function does not return a value. | |
2666 | ||
2667 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2668 | fprintf (takes a stream to write on), and printf (the usual). | |
2669 | ||
2670 | Note also that a longjmp to top level may occur in this routine | |
2671 | (since prompt_for_continue may do so) so this routine should not be | |
2672 | called when cleanups are not in place. */ | |
2673 | ||
2674 | static void | |
fba45db2 KB |
2675 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2676 | va_list args, int filter) | |
c906108c SS |
2677 | { |
2678 | char *linebuffer; | |
2679 | struct cleanup *old_cleanups; | |
2680 | ||
e623b504 | 2681 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2682 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2683 | fputs_maybe_filtered (linebuffer, stream, filter); |
2684 | do_cleanups (old_cleanups); | |
2685 | } | |
2686 | ||
2687 | ||
2688 | void | |
fba45db2 | 2689 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2690 | { |
2691 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2692 | } | |
2693 | ||
2694 | void | |
fba45db2 | 2695 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2696 | { |
2697 | char *linebuffer; | |
2698 | struct cleanup *old_cleanups; | |
2699 | ||
e623b504 | 2700 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2701 | old_cleanups = make_cleanup (xfree, linebuffer); |
75feb17d DJ |
2702 | if (debug_timestamp && stream == gdb_stdlog) |
2703 | { | |
2704 | struct timeval tm; | |
2705 | char *timestamp; | |
6e5abd65 | 2706 | int len, need_nl; |
75feb17d DJ |
2707 | |
2708 | gettimeofday (&tm, NULL); | |
6e5abd65 PA |
2709 | |
2710 | len = strlen (linebuffer); | |
2711 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); | |
2712 | ||
2713 | timestamp = xstrprintf ("%ld:%ld %s%s", | |
2714 | (long) tm.tv_sec, (long) tm.tv_usec, | |
2715 | linebuffer, | |
2716 | need_nl ? "\n": ""); | |
75feb17d DJ |
2717 | make_cleanup (xfree, timestamp); |
2718 | fputs_unfiltered (timestamp, stream); | |
2719 | } | |
6e5abd65 PA |
2720 | else |
2721 | fputs_unfiltered (linebuffer, stream); | |
c906108c SS |
2722 | do_cleanups (old_cleanups); |
2723 | } | |
2724 | ||
2725 | void | |
fba45db2 | 2726 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2727 | { |
2728 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2729 | } | |
2730 | ||
2731 | void | |
fba45db2 | 2732 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2733 | { |
2734 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2735 | } | |
2736 | ||
c906108c | 2737 | void |
8731e58e | 2738 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2739 | { |
2740 | va_list args; | |
e0627e85 | 2741 | |
c906108c | 2742 | va_start (args, format); |
c906108c SS |
2743 | vfprintf_filtered (stream, format, args); |
2744 | va_end (args); | |
2745 | } | |
2746 | ||
c906108c | 2747 | void |
8731e58e | 2748 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2749 | { |
2750 | va_list args; | |
e0627e85 | 2751 | |
c906108c | 2752 | va_start (args, format); |
c906108c SS |
2753 | vfprintf_unfiltered (stream, format, args); |
2754 | va_end (args); | |
2755 | } | |
2756 | ||
2757 | /* Like fprintf_filtered, but prints its result indented. | |
2758 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2759 | ||
c906108c | 2760 | void |
8731e58e AC |
2761 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2762 | ...) | |
c906108c SS |
2763 | { |
2764 | va_list args; | |
e0627e85 | 2765 | |
c906108c | 2766 | va_start (args, format); |
c906108c SS |
2767 | print_spaces_filtered (spaces, stream); |
2768 | ||
2769 | vfprintf_filtered (stream, format, args); | |
2770 | va_end (args); | |
2771 | } | |
2772 | ||
2773 | ||
c906108c | 2774 | void |
8731e58e | 2775 | printf_filtered (const char *format, ...) |
c906108c SS |
2776 | { |
2777 | va_list args; | |
e0627e85 | 2778 | |
c906108c | 2779 | va_start (args, format); |
c906108c SS |
2780 | vfprintf_filtered (gdb_stdout, format, args); |
2781 | va_end (args); | |
2782 | } | |
2783 | ||
2784 | ||
c906108c | 2785 | void |
8731e58e | 2786 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2787 | { |
2788 | va_list args; | |
e0627e85 | 2789 | |
c906108c | 2790 | va_start (args, format); |
c906108c SS |
2791 | vfprintf_unfiltered (gdb_stdout, format, args); |
2792 | va_end (args); | |
2793 | } | |
2794 | ||
2795 | /* Like printf_filtered, but prints it's result indented. | |
2796 | Called as printfi_filtered (spaces, format, ...); */ | |
2797 | ||
c906108c | 2798 | void |
8731e58e | 2799 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2800 | { |
2801 | va_list args; | |
e0627e85 | 2802 | |
c906108c | 2803 | va_start (args, format); |
c906108c SS |
2804 | print_spaces_filtered (spaces, gdb_stdout); |
2805 | vfprintf_filtered (gdb_stdout, format, args); | |
2806 | va_end (args); | |
2807 | } | |
2808 | ||
2809 | /* Easy -- but watch out! | |
2810 | ||
2811 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2812 | This one doesn't, and had better not! */ | |
2813 | ||
2814 | void | |
fba45db2 | 2815 | puts_filtered (const char *string) |
c906108c SS |
2816 | { |
2817 | fputs_filtered (string, gdb_stdout); | |
2818 | } | |
2819 | ||
2820 | void | |
fba45db2 | 2821 | puts_unfiltered (const char *string) |
c906108c SS |
2822 | { |
2823 | fputs_unfiltered (string, gdb_stdout); | |
2824 | } | |
2825 | ||
2826 | /* Return a pointer to N spaces and a null. The pointer is good | |
2827 | until the next call to here. */ | |
2828 | char * | |
fba45db2 | 2829 | n_spaces (int n) |
c906108c | 2830 | { |
392a587b JM |
2831 | char *t; |
2832 | static char *spaces = 0; | |
2833 | static int max_spaces = -1; | |
c906108c SS |
2834 | |
2835 | if (n > max_spaces) | |
2836 | { | |
2837 | if (spaces) | |
b8c9b27d | 2838 | xfree (spaces); |
c5aa993b JM |
2839 | spaces = (char *) xmalloc (n + 1); |
2840 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2841 | *--t = ' '; |
2842 | spaces[n] = '\0'; | |
2843 | max_spaces = n; | |
2844 | } | |
2845 | ||
2846 | return spaces + max_spaces - n; | |
2847 | } | |
2848 | ||
2849 | /* Print N spaces. */ | |
2850 | void | |
fba45db2 | 2851 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2852 | { |
2853 | fputs_filtered (n_spaces (n), stream); | |
2854 | } | |
2855 | \f | |
4a351cef | 2856 | /* C++/ObjC demangler stuff. */ |
c906108c | 2857 | |
389e51db AC |
2858 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2859 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2860 | If the name is not mangled, or the language for the name is unknown, or | |
2861 | demangling is off, the name is printed in its "raw" form. */ | |
c906108c SS |
2862 | |
2863 | void | |
8731e58e AC |
2864 | fprintf_symbol_filtered (struct ui_file *stream, char *name, |
2865 | enum language lang, int arg_mode) | |
c906108c SS |
2866 | { |
2867 | char *demangled; | |
2868 | ||
2869 | if (name != NULL) | |
2870 | { | |
2871 | /* If user wants to see raw output, no problem. */ | |
2872 | if (!demangle) | |
2873 | { | |
2874 | fputs_filtered (name, stream); | |
2875 | } | |
2876 | else | |
2877 | { | |
9a3d7dfd | 2878 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2879 | fputs_filtered (demangled ? demangled : name, stream); |
2880 | if (demangled != NULL) | |
2881 | { | |
b8c9b27d | 2882 | xfree (demangled); |
c906108c SS |
2883 | } |
2884 | } | |
2885 | } | |
2886 | } | |
2887 | ||
2888 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2889 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2890 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2891 | |
c906108c SS |
2892 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2893 | This "feature" is useful when searching for matching C++ function names | |
2894 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
2895 | function). */ | |
2896 | ||
2897 | int | |
fba45db2 | 2898 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2899 | { |
2900 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2901 | { | |
2902 | while (isspace (*string1)) | |
2903 | { | |
2904 | string1++; | |
2905 | } | |
2906 | while (isspace (*string2)) | |
2907 | { | |
2908 | string2++; | |
2909 | } | |
2910 | if (*string1 != *string2) | |
2911 | { | |
2912 | break; | |
2913 | } | |
2914 | if (*string1 != '\0') | |
2915 | { | |
2916 | string1++; | |
2917 | string2++; | |
2918 | } | |
2919 | } | |
2920 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2921 | } | |
2de7ced7 | 2922 | |
0fe19209 DC |
2923 | /* This is like strcmp except that it ignores whitespace and treats |
2924 | '(' as the first non-NULL character in terms of ordering. Like | |
2925 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2926 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2927 | according to that ordering. | |
2928 | ||
2929 | If a list is sorted according to this function and if you want to | |
2930 | find names in the list that match some fixed NAME according to | |
2931 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2932 | where this function would put NAME. | |
2933 | ||
2934 | Here are some examples of why using strcmp to sort is a bad idea: | |
2935 | ||
2936 | Whitespace example: | |
2937 | ||
2938 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2939 | we try to do a search for "foo<char*>", strcmp will locate this | |
2940 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2941 | will start looking at strings beginning with "goo", and will never | |
2942 | see the correct match of "foo<char *>". | |
2943 | ||
2944 | Parenthesis example: | |
2945 | ||
2946 | In practice, this is less like to be an issue, but I'll give it a | |
2947 | shot. Let's assume that '$' is a legitimate character to occur in | |
2948 | symbols. (Which may well even be the case on some systems.) Then | |
2949 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2950 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2951 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2952 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2953 | "foo") is false, so it won't proceed to the actual match of | |
2954 | "foo(int)" with "foo". */ | |
2955 | ||
2956 | int | |
2957 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2958 | { | |
2959 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2960 | { | |
2961 | while (isspace (*string1)) | |
2962 | { | |
2963 | string1++; | |
2964 | } | |
2965 | while (isspace (*string2)) | |
2966 | { | |
2967 | string2++; | |
2968 | } | |
2969 | if (*string1 != *string2) | |
2970 | { | |
2971 | break; | |
2972 | } | |
2973 | if (*string1 != '\0') | |
2974 | { | |
2975 | string1++; | |
2976 | string2++; | |
2977 | } | |
2978 | } | |
2979 | ||
2980 | switch (*string1) | |
2981 | { | |
2982 | /* Characters are non-equal unless they're both '\0'; we want to | |
2983 | make sure we get the comparison right according to our | |
2984 | comparison in the cases where one of them is '\0' or '('. */ | |
2985 | case '\0': | |
2986 | if (*string2 == '\0') | |
2987 | return 0; | |
2988 | else | |
2989 | return -1; | |
2990 | case '(': | |
2991 | if (*string2 == '\0') | |
2992 | return 1; | |
2993 | else | |
2994 | return -1; | |
2995 | default: | |
2996 | if (*string2 == '(') | |
2997 | return 1; | |
2998 | else | |
2999 | return *string1 - *string2; | |
3000 | } | |
3001 | } | |
3002 | ||
2de7ced7 DJ |
3003 | /* A simple comparison function with opposite semantics to strcmp. */ |
3004 | ||
3005 | int | |
3006 | streq (const char *lhs, const char *rhs) | |
3007 | { | |
3008 | return !strcmp (lhs, rhs); | |
3009 | } | |
c906108c | 3010 | \f |
c5aa993b | 3011 | |
c906108c | 3012 | /* |
c5aa993b JM |
3013 | ** subset_compare() |
3014 | ** Answer whether string_to_compare is a full or partial match to | |
3015 | ** template_string. The partial match must be in sequence starting | |
3016 | ** at index 0. | |
3017 | */ | |
c906108c | 3018 | int |
fba45db2 | 3019 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
3020 | { |
3021 | int match; | |
e0627e85 | 3022 | |
8731e58e AC |
3023 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
3024 | && strlen (string_to_compare) <= strlen (template_string)) | |
3025 | match = | |
3026 | (strncmp | |
3027 | (template_string, string_to_compare, strlen (string_to_compare)) == 0); | |
7a292a7a SS |
3028 | else |
3029 | match = 0; | |
3030 | return match; | |
3031 | } | |
c906108c | 3032 | |
7a292a7a | 3033 | static void |
fba45db2 | 3034 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
3035 | { |
3036 | pagination_enabled = 1; | |
3037 | } | |
3038 | ||
7a292a7a | 3039 | static void |
fba45db2 | 3040 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
3041 | { |
3042 | pagination_enabled = 0; | |
3043 | } | |
75feb17d DJ |
3044 | |
3045 | static void | |
3046 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
3047 | struct cmd_list_element *c, const char *value) | |
3048 | { | |
3049 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), value); | |
3050 | } | |
c906108c | 3051 | \f |
c5aa993b | 3052 | |
c906108c | 3053 | void |
fba45db2 | 3054 | initialize_utils (void) |
c906108c | 3055 | { |
35096d9d AC |
3056 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
3057 | Set number of characters gdb thinks are in a line."), _("\ | |
3058 | Show number of characters gdb thinks are in a line."), NULL, | |
3059 | set_width_command, | |
920d2a44 | 3060 | show_chars_per_line, |
35096d9d AC |
3061 | &setlist, &showlist); |
3062 | ||
3063 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
3064 | Set number of lines gdb thinks are in a page."), _("\ | |
3065 | Show number of lines gdb thinks are in a page."), NULL, | |
3066 | set_height_command, | |
920d2a44 | 3067 | show_lines_per_page, |
35096d9d | 3068 | &setlist, &showlist); |
c5aa993b | 3069 | |
c906108c SS |
3070 | init_page_info (); |
3071 | ||
5bf193a2 AC |
3072 | add_setshow_boolean_cmd ("demangle", class_support, &demangle, _("\ |
3073 | Set demangling of encoded C++/ObjC names when displaying symbols."), _("\ | |
3074 | Show demangling of encoded C++/ObjC names when displaying symbols."), NULL, | |
3075 | NULL, | |
920d2a44 | 3076 | show_demangle, |
5bf193a2 AC |
3077 | &setprintlist, &showprintlist); |
3078 | ||
3079 | add_setshow_boolean_cmd ("pagination", class_support, | |
3080 | &pagination_enabled, _("\ | |
3081 | Set state of pagination."), _("\ | |
3082 | Show state of pagination."), NULL, | |
3083 | NULL, | |
920d2a44 | 3084 | show_pagination_enabled, |
5bf193a2 | 3085 | &setlist, &showlist); |
4261bedc | 3086 | |
c906108c SS |
3087 | if (xdb_commands) |
3088 | { | |
c5aa993b | 3089 | add_com ("am", class_support, pagination_on_command, |
1bedd215 | 3090 | _("Enable pagination")); |
c5aa993b | 3091 | add_com ("sm", class_support, pagination_off_command, |
1bedd215 | 3092 | _("Disable pagination")); |
c906108c SS |
3093 | } |
3094 | ||
5bf193a2 AC |
3095 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, |
3096 | &sevenbit_strings, _("\ | |
3097 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
3098 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
3099 | NULL, | |
920d2a44 | 3100 | show_sevenbit_strings, |
5bf193a2 AC |
3101 | &setprintlist, &showprintlist); |
3102 | ||
3103 | add_setshow_boolean_cmd ("asm-demangle", class_support, &asm_demangle, _("\ | |
3104 | Set demangling of C++/ObjC names in disassembly listings."), _("\ | |
3105 | Show demangling of C++/ObjC names in disassembly listings."), NULL, | |
3106 | NULL, | |
920d2a44 | 3107 | show_asm_demangle, |
5bf193a2 | 3108 | &setprintlist, &showprintlist); |
75feb17d DJ |
3109 | |
3110 | add_setshow_boolean_cmd ("timestamp", class_maintenance, | |
3111 | &debug_timestamp, _("\ | |
3112 | Set timestamping of debugging messages."), _("\ | |
3113 | Show timestamping of debugging messages."), _("\ | |
3114 | When set, debugging messages will be marked with seconds and microseconds."), | |
3115 | NULL, | |
3116 | show_debug_timestamp, | |
3117 | &setdebuglist, &showdebuglist); | |
c906108c SS |
3118 | } |
3119 | ||
3120 | /* Machine specific function to handle SIGWINCH signal. */ | |
3121 | ||
3122 | #ifdef SIGWINCH_HANDLER_BODY | |
c5aa993b | 3123 | SIGWINCH_HANDLER_BODY |
c906108c | 3124 | #endif |
5683e87a | 3125 | /* print routines to handle variable size regs, etc. */ |
c906108c SS |
3126 | /* temporary storage using circular buffer */ |
3127 | #define NUMCELLS 16 | |
0759e0bf | 3128 | #define CELLSIZE 50 |
c5aa993b | 3129 | static char * |
fba45db2 | 3130 | get_cell (void) |
c906108c SS |
3131 | { |
3132 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b | 3133 | static int cell = 0; |
e0627e85 | 3134 | |
c5aa993b JM |
3135 | if (++cell >= NUMCELLS) |
3136 | cell = 0; | |
c906108c SS |
3137 | return buf[cell]; |
3138 | } | |
3139 | ||
66bf4b3a | 3140 | const char * |
5af949e3 | 3141 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
3142 | { |
3143 | /* Truncate address to the size of a target address, avoiding shifts | |
3144 | larger or equal than the width of a CORE_ADDR. The local | |
3145 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
3146 | when it won't occur. */ | |
3147 | /* NOTE: This assumes that the significant address information is | |
3148 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 3149 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
3150 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
3151 | ||
5af949e3 | 3152 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
3153 | |
3154 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
3155 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
3156 | return hex_string (addr); | |
3157 | } | |
3158 | ||
8cf46f62 MK |
3159 | static char * |
3160 | decimal2str (char *sign, ULONGEST addr, int width) | |
104c1213 | 3161 | { |
8cf46f62 | 3162 | /* Steal code from valprint.c:print_decimal(). Should this worry |
104c1213 JM |
3163 | about the real size of addr as the above does? */ |
3164 | unsigned long temp[3]; | |
8cf46f62 | 3165 | char *str = get_cell (); |
104c1213 | 3166 | int i = 0; |
5d502164 | 3167 | |
104c1213 JM |
3168 | do |
3169 | { | |
3170 | temp[i] = addr % (1000 * 1000 * 1000); | |
3171 | addr /= (1000 * 1000 * 1000); | |
3172 | i++; | |
bb599908 | 3173 | width -= 9; |
104c1213 JM |
3174 | } |
3175 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 3176 | |
bb599908 PH |
3177 | width += 9; |
3178 | if (width < 0) | |
3179 | width = 0; | |
8cf46f62 | 3180 | |
104c1213 JM |
3181 | switch (i) |
3182 | { | |
3183 | case 1: | |
8cf46f62 | 3184 | xsnprintf (str, CELLSIZE, "%s%0*lu", sign, width, temp[0]); |
104c1213 JM |
3185 | break; |
3186 | case 2: | |
8cf46f62 MK |
3187 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu", sign, width, |
3188 | temp[1], temp[0]); | |
104c1213 JM |
3189 | break; |
3190 | case 3: | |
8cf46f62 MK |
3191 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu%09lu", sign, width, |
3192 | temp[2], temp[1], temp[0]); | |
bb599908 PH |
3193 | break; |
3194 | default: | |
3195 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3196 | _("failed internal consistency check")); |
bb599908 | 3197 | } |
8cf46f62 MK |
3198 | |
3199 | return str; | |
bb599908 PH |
3200 | } |
3201 | ||
8cf46f62 MK |
3202 | static char * |
3203 | octal2str (ULONGEST addr, int width) | |
bb599908 PH |
3204 | { |
3205 | unsigned long temp[3]; | |
8cf46f62 | 3206 | char *str = get_cell (); |
bb599908 | 3207 | int i = 0; |
5d502164 | 3208 | |
bb599908 PH |
3209 | do |
3210 | { | |
3211 | temp[i] = addr % (0100000 * 0100000); | |
3212 | addr /= (0100000 * 0100000); | |
3213 | i++; | |
3214 | width -= 10; | |
3215 | } | |
3216 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 3217 | |
bb599908 PH |
3218 | width += 10; |
3219 | if (width < 0) | |
3220 | width = 0; | |
8cf46f62 | 3221 | |
bb599908 PH |
3222 | switch (i) |
3223 | { | |
3224 | case 1: | |
3225 | if (temp[0] == 0) | |
8cf46f62 | 3226 | xsnprintf (str, CELLSIZE, "%*o", width, 0); |
bb599908 | 3227 | else |
8cf46f62 | 3228 | xsnprintf (str, CELLSIZE, "0%0*lo", width, temp[0]); |
bb599908 PH |
3229 | break; |
3230 | case 2: | |
8cf46f62 | 3231 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo", width, temp[1], temp[0]); |
bb599908 PH |
3232 | break; |
3233 | case 3: | |
8cf46f62 MK |
3234 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo%010lo", width, |
3235 | temp[2], temp[1], temp[0]); | |
104c1213 JM |
3236 | break; |
3237 | default: | |
8731e58e | 3238 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 3239 | _("failed internal consistency check")); |
104c1213 | 3240 | } |
8cf46f62 MK |
3241 | |
3242 | return str; | |
104c1213 JM |
3243 | } |
3244 | ||
3245 | char * | |
623d3eb1 | 3246 | pulongest (ULONGEST u) |
104c1213 | 3247 | { |
623d3eb1 | 3248 | return decimal2str ("", u, 0); |
104c1213 JM |
3249 | } |
3250 | ||
3251 | char * | |
623d3eb1 | 3252 | plongest (LONGEST l) |
104c1213 | 3253 | { |
623d3eb1 DE |
3254 | if (l < 0) |
3255 | return decimal2str ("-", -l, 0); | |
104c1213 | 3256 | else |
623d3eb1 | 3257 | return decimal2str ("", l, 0); |
104c1213 JM |
3258 | } |
3259 | ||
8cf46f62 | 3260 | /* Eliminate warning from compiler on 32-bit systems. */ |
5683e87a AC |
3261 | static int thirty_two = 32; |
3262 | ||
104c1213 | 3263 | char * |
5683e87a | 3264 | phex (ULONGEST l, int sizeof_l) |
104c1213 | 3265 | { |
45a1e866 | 3266 | char *str; |
8cf46f62 | 3267 | |
5683e87a | 3268 | switch (sizeof_l) |
104c1213 JM |
3269 | { |
3270 | case 8: | |
45a1e866 | 3271 | str = get_cell (); |
8cf46f62 MK |
3272 | xsnprintf (str, CELLSIZE, "%08lx%08lx", |
3273 | (unsigned long) (l >> thirty_two), | |
3274 | (unsigned long) (l & 0xffffffff)); | |
104c1213 JM |
3275 | break; |
3276 | case 4: | |
45a1e866 | 3277 | str = get_cell (); |
8cf46f62 | 3278 | xsnprintf (str, CELLSIZE, "%08lx", (unsigned long) l); |
104c1213 JM |
3279 | break; |
3280 | case 2: | |
45a1e866 | 3281 | str = get_cell (); |
8cf46f62 | 3282 | xsnprintf (str, CELLSIZE, "%04x", (unsigned short) (l & 0xffff)); |
104c1213 JM |
3283 | break; |
3284 | default: | |
45a1e866 | 3285 | str = phex (l, sizeof (l)); |
5683e87a | 3286 | break; |
104c1213 | 3287 | } |
8cf46f62 | 3288 | |
5683e87a | 3289 | return str; |
104c1213 JM |
3290 | } |
3291 | ||
c5aa993b | 3292 | char * |
5683e87a | 3293 | phex_nz (ULONGEST l, int sizeof_l) |
c906108c | 3294 | { |
faf833ca | 3295 | char *str; |
8cf46f62 | 3296 | |
5683e87a | 3297 | switch (sizeof_l) |
c906108c | 3298 | { |
c5aa993b JM |
3299 | case 8: |
3300 | { | |
5683e87a | 3301 | unsigned long high = (unsigned long) (l >> thirty_two); |
5d502164 | 3302 | |
faf833ca | 3303 | str = get_cell (); |
c5aa993b | 3304 | if (high == 0) |
8cf46f62 MK |
3305 | xsnprintf (str, CELLSIZE, "%lx", |
3306 | (unsigned long) (l & 0xffffffff)); | |
c5aa993b | 3307 | else |
8cf46f62 MK |
3308 | xsnprintf (str, CELLSIZE, "%lx%08lx", high, |
3309 | (unsigned long) (l & 0xffffffff)); | |
c906108c | 3310 | break; |
c5aa993b JM |
3311 | } |
3312 | case 4: | |
faf833ca | 3313 | str = get_cell (); |
8cf46f62 | 3314 | xsnprintf (str, CELLSIZE, "%lx", (unsigned long) l); |
c5aa993b JM |
3315 | break; |
3316 | case 2: | |
faf833ca | 3317 | str = get_cell (); |
8cf46f62 | 3318 | xsnprintf (str, CELLSIZE, "%x", (unsigned short) (l & 0xffff)); |
c5aa993b JM |
3319 | break; |
3320 | default: | |
faf833ca | 3321 | str = phex_nz (l, sizeof (l)); |
5683e87a | 3322 | break; |
c906108c | 3323 | } |
8cf46f62 | 3324 | |
5683e87a | 3325 | return str; |
c906108c | 3326 | } |
ac2e2ef7 | 3327 | |
0759e0bf AC |
3328 | /* Converts a LONGEST to a C-format hexadecimal literal and stores it |
3329 | in a static string. Returns a pointer to this string. */ | |
3330 | char * | |
3331 | hex_string (LONGEST num) | |
3332 | { | |
3333 | char *result = get_cell (); | |
e0627e85 | 3334 | |
8cf46f62 | 3335 | xsnprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num))); |
0759e0bf AC |
3336 | return result; |
3337 | } | |
3338 | ||
3339 | /* Converts a LONGEST number to a C-format hexadecimal literal and | |
3340 | stores it in a static string. Returns a pointer to this string | |
3341 | that is valid until the next call. The number is padded on the | |
3342 | left with 0s to at least WIDTH characters. */ | |
3343 | char * | |
3344 | hex_string_custom (LONGEST num, int width) | |
3345 | { | |
3346 | char *result = get_cell (); | |
3347 | char *result_end = result + CELLSIZE - 1; | |
3348 | const char *hex = phex_nz (num, sizeof (num)); | |
3349 | int hex_len = strlen (hex); | |
3350 | ||
3351 | if (hex_len > width) | |
3352 | width = hex_len; | |
3353 | if (width + 2 >= CELLSIZE) | |
3354 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3355 | _("hex_string_custom: insufficient space to store result")); |
0759e0bf AC |
3356 | |
3357 | strcpy (result_end - width - 2, "0x"); | |
3358 | memset (result_end - width, '0', width); | |
3359 | strcpy (result_end - hex_len, hex); | |
3360 | return result_end - width - 2; | |
3361 | } | |
ac2e2ef7 | 3362 | |
bb599908 PH |
3363 | /* Convert VAL to a numeral in the given radix. For |
3364 | * radix 10, IS_SIGNED may be true, indicating a signed quantity; | |
3365 | * otherwise VAL is interpreted as unsigned. If WIDTH is supplied, | |
3366 | * it is the minimum width (0-padded if needed). USE_C_FORMAT means | |
3367 | * to use C format in all cases. If it is false, then 'x' | |
3368 | * and 'o' formats do not include a prefix (0x or leading 0). */ | |
3369 | ||
3370 | char * | |
3371 | int_string (LONGEST val, int radix, int is_signed, int width, | |
3372 | int use_c_format) | |
3373 | { | |
3374 | switch (radix) | |
3375 | { | |
3376 | case 16: | |
3377 | { | |
3378 | char *result; | |
5d502164 | 3379 | |
bb599908 PH |
3380 | if (width == 0) |
3381 | result = hex_string (val); | |
3382 | else | |
3383 | result = hex_string_custom (val, width); | |
3384 | if (! use_c_format) | |
3385 | result += 2; | |
3386 | return result; | |
3387 | } | |
3388 | case 10: | |
3389 | { | |
bb599908 | 3390 | if (is_signed && val < 0) |
8cf46f62 | 3391 | return decimal2str ("-", -val, width); |
bb599908 | 3392 | else |
8cf46f62 | 3393 | return decimal2str ("", val, width); |
bb599908 PH |
3394 | } |
3395 | case 8: | |
3396 | { | |
8cf46f62 | 3397 | char *result = octal2str (val, width); |
5d502164 | 3398 | |
bb599908 PH |
3399 | if (use_c_format || val == 0) |
3400 | return result; | |
3401 | else | |
3402 | return result + 1; | |
3403 | } | |
3404 | default: | |
3405 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 3406 | _("failed internal consistency check")); |
bb599908 PH |
3407 | } |
3408 | } | |
3409 | ||
03dd37c3 AC |
3410 | /* Convert a CORE_ADDR into a string. */ |
3411 | const char * | |
3412 | core_addr_to_string (const CORE_ADDR addr) | |
49b563f9 KS |
3413 | { |
3414 | char *str = get_cell (); | |
e0627e85 | 3415 | |
49b563f9 KS |
3416 | strcpy (str, "0x"); |
3417 | strcat (str, phex (addr, sizeof (addr))); | |
3418 | return str; | |
3419 | } | |
3420 | ||
3421 | const char * | |
3422 | core_addr_to_string_nz (const CORE_ADDR addr) | |
03dd37c3 AC |
3423 | { |
3424 | char *str = get_cell (); | |
e0627e85 | 3425 | |
03dd37c3 AC |
3426 | strcpy (str, "0x"); |
3427 | strcat (str, phex_nz (addr, sizeof (addr))); | |
3428 | return str; | |
3429 | } | |
3430 | ||
3431 | /* Convert a string back into a CORE_ADDR. */ | |
3432 | CORE_ADDR | |
3433 | string_to_core_addr (const char *my_string) | |
3434 | { | |
3435 | CORE_ADDR addr = 0; | |
9544c605 | 3436 | |
03dd37c3 AC |
3437 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
3438 | { | |
ced572fe | 3439 | /* Assume that it is in hex. */ |
03dd37c3 | 3440 | int i; |
5d502164 | 3441 | |
03dd37c3 AC |
3442 | for (i = 2; my_string[i] != '\0'; i++) |
3443 | { | |
3444 | if (isdigit (my_string[i])) | |
3445 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 3446 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
3447 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
3448 | else | |
63f06803 | 3449 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
3450 | } |
3451 | } | |
3452 | else | |
3453 | { | |
3454 | /* Assume that it is in decimal. */ | |
3455 | int i; | |
5d502164 | 3456 | |
03dd37c3 AC |
3457 | for (i = 0; my_string[i] != '\0'; i++) |
3458 | { | |
3459 | if (isdigit (my_string[i])) | |
3460 | addr = (my_string[i] - '0') + (addr * 10); | |
3461 | else | |
63f06803 | 3462 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
3463 | } |
3464 | } | |
9544c605 | 3465 | |
03dd37c3 AC |
3466 | return addr; |
3467 | } | |
58d370e0 | 3468 | |
17ea7499 CES |
3469 | const char * |
3470 | host_address_to_string (const void *addr) | |
3471 | { | |
3472 | char *str = get_cell (); | |
ea8992ce | 3473 | |
773698b5 | 3474 | xsnprintf (str, CELLSIZE, "0x%s", phex_nz ((uintptr_t) addr, sizeof (addr))); |
17ea7499 CES |
3475 | return str; |
3476 | } | |
3477 | ||
58d370e0 TT |
3478 | char * |
3479 | gdb_realpath (const char *filename) | |
3480 | { | |
70d35819 AC |
3481 | /* Method 1: The system has a compile time upper bound on a filename |
3482 | path. Use that and realpath() to canonicalize the name. This is | |
3483 | the most common case. Note that, if there isn't a compile time | |
3484 | upper bound, you want to avoid realpath() at all costs. */ | |
a4db0f07 | 3485 | #if defined(HAVE_REALPATH) |
70d35819 | 3486 | { |
a4db0f07 | 3487 | # if defined (PATH_MAX) |
70d35819 | 3488 | char buf[PATH_MAX]; |
a4db0f07 RH |
3489 | # define USE_REALPATH |
3490 | # elif defined (MAXPATHLEN) | |
70d35819 | 3491 | char buf[MAXPATHLEN]; |
a4db0f07 RH |
3492 | # define USE_REALPATH |
3493 | # endif | |
70d35819 | 3494 | # if defined (USE_REALPATH) |
82c0260e | 3495 | const char *rp = realpath (filename, buf); |
5d502164 | 3496 | |
70d35819 AC |
3497 | if (rp == NULL) |
3498 | rp = filename; | |
3499 | return xstrdup (rp); | |
70d35819 | 3500 | # endif |
6f88d630 | 3501 | } |
a4db0f07 RH |
3502 | #endif /* HAVE_REALPATH */ |
3503 | ||
70d35819 AC |
3504 | /* Method 2: The host system (i.e., GNU) has the function |
3505 | canonicalize_file_name() which malloc's a chunk of memory and | |
3506 | returns that, use that. */ | |
3507 | #if defined(HAVE_CANONICALIZE_FILE_NAME) | |
3508 | { | |
3509 | char *rp = canonicalize_file_name (filename); | |
5d502164 | 3510 | |
70d35819 AC |
3511 | if (rp == NULL) |
3512 | return xstrdup (filename); | |
3513 | else | |
3514 | return rp; | |
3515 | } | |
58d370e0 | 3516 | #endif |
70d35819 | 3517 | |
6411e720 AC |
3518 | /* FIXME: cagney/2002-11-13: |
3519 | ||
3520 | Method 2a: Use realpath() with a NULL buffer. Some systems, due | |
3521 | to the problems described in in method 3, have modified their | |
3522 | realpath() implementation so that it will allocate a buffer when | |
3523 | NULL is passed in. Before this can be used, though, some sort of | |
3524 | configure time test would need to be added. Otherwize the code | |
3525 | will likely core dump. */ | |
3526 | ||
70d35819 AC |
3527 | /* Method 3: Now we're getting desperate! The system doesn't have a |
3528 | compile time buffer size and no alternative function. Query the | |
3529 | OS, using pathconf(), for the buffer limit. Care is needed | |
3530 | though, some systems do not limit PATH_MAX (return -1 for | |
3531 | pathconf()) making it impossible to pass a correctly sized buffer | |
3532 | to realpath() (it could always overflow). On those systems, we | |
3533 | skip this. */ | |
3534 | #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA) | |
3535 | { | |
3536 | /* Find out the max path size. */ | |
3537 | long path_max = pathconf ("/", _PC_PATH_MAX); | |
5d502164 | 3538 | |
70d35819 AC |
3539 | if (path_max > 0) |
3540 | { | |
3541 | /* PATH_MAX is bounded. */ | |
3542 | char *buf = alloca (path_max); | |
3543 | char *rp = realpath (filename, buf); | |
5d502164 | 3544 | |
70d35819 AC |
3545 | return xstrdup (rp ? rp : filename); |
3546 | } | |
3547 | } | |
3548 | #endif | |
3549 | ||
3550 | /* This system is a lost cause, just dup the buffer. */ | |
3551 | return xstrdup (filename); | |
58d370e0 | 3552 | } |
303c8ebd JB |
3553 | |
3554 | /* Return a copy of FILENAME, with its directory prefix canonicalized | |
3555 | by gdb_realpath. */ | |
3556 | ||
3557 | char * | |
3558 | xfullpath (const char *filename) | |
3559 | { | |
3560 | const char *base_name = lbasename (filename); | |
3561 | char *dir_name; | |
3562 | char *real_path; | |
3563 | char *result; | |
3564 | ||
3565 | /* Extract the basename of filename, and return immediately | |
3566 | a copy of filename if it does not contain any directory prefix. */ | |
3567 | if (base_name == filename) | |
3568 | return xstrdup (filename); | |
3569 | ||
3570 | dir_name = alloca ((size_t) (base_name - filename + 2)); | |
3571 | /* Allocate enough space to store the dir_name + plus one extra | |
3572 | character sometimes needed under Windows (see below), and | |
3573 | then the closing \000 character */ | |
3574 | strncpy (dir_name, filename, base_name - filename); | |
3575 | dir_name[base_name - filename] = '\000'; | |
3576 | ||
3577 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3578 | /* We need to be careful when filename is of the form 'd:foo', which | |
3579 | is equivalent of d:./foo, which is totally different from d:/foo. */ | |
8731e58e | 3580 | if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':') |
303c8ebd JB |
3581 | { |
3582 | dir_name[2] = '.'; | |
3583 | dir_name[3] = '\000'; | |
3584 | } | |
3585 | #endif | |
3586 | ||
3587 | /* Canonicalize the directory prefix, and build the resulting | |
3588 | filename. If the dirname realpath already contains an ending | |
3589 | directory separator, avoid doubling it. */ | |
3590 | real_path = gdb_realpath (dir_name); | |
3591 | if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1])) | |
c4f7c687 | 3592 | result = concat (real_path, base_name, (char *) NULL); |
303c8ebd | 3593 | else |
c4f7c687 | 3594 | result = concat (real_path, SLASH_STRING, base_name, (char *) NULL); |
303c8ebd JB |
3595 | |
3596 | xfree (real_path); | |
3597 | return result; | |
3598 | } | |
5b5d99cf JB |
3599 | |
3600 | ||
3601 | /* This is the 32-bit CRC function used by the GNU separate debug | |
3602 | facility. An executable may contain a section named | |
3603 | .gnu_debuglink, which holds the name of a separate executable file | |
3604 | containing its debug info, and a checksum of that file's contents, | |
3605 | computed using this function. */ | |
3606 | unsigned long | |
3607 | gnu_debuglink_crc32 (unsigned long crc, unsigned char *buf, size_t len) | |
3608 | { | |
6e0a4fbc | 3609 | static const unsigned int crc32_table[256] = { |
8731e58e AC |
3610 | 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, |
3611 | 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, | |
3612 | 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, | |
3613 | 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, | |
3614 | 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, | |
3615 | 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, | |
3616 | 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, | |
3617 | 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, | |
3618 | 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, | |
3619 | 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, | |
3620 | 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, | |
3621 | 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, | |
3622 | 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, | |
3623 | 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, | |
3624 | 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, | |
3625 | 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, | |
3626 | 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, | |
3627 | 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, | |
3628 | 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, | |
3629 | 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, | |
3630 | 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, | |
3631 | 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, | |
3632 | 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, | |
3633 | 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, | |
3634 | 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, | |
3635 | 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, | |
3636 | 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, | |
3637 | 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, | |
3638 | 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, | |
3639 | 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, | |
3640 | 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, | |
3641 | 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, | |
3642 | 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, | |
3643 | 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, | |
3644 | 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, | |
3645 | 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, | |
3646 | 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, | |
3647 | 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, | |
3648 | 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, | |
3649 | 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, | |
3650 | 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, | |
3651 | 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, | |
3652 | 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, | |
3653 | 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, | |
3654 | 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, | |
3655 | 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, | |
3656 | 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, | |
3657 | 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, | |
3658 | 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, | |
3659 | 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, | |
3660 | 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, | |
3661 | 0x2d02ef8d | |
3662 | }; | |
5b5d99cf JB |
3663 | unsigned char *end; |
3664 | ||
3665 | crc = ~crc & 0xffffffff; | |
3666 | for (end = buf + len; buf < end; ++buf) | |
3667 | crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8); | |
3668 | return ~crc & 0xffffffff;; | |
3669 | } | |
5b03f266 AC |
3670 | |
3671 | ULONGEST | |
3672 | align_up (ULONGEST v, int n) | |
3673 | { | |
3674 | /* Check that N is really a power of two. */ | |
3675 | gdb_assert (n && (n & (n-1)) == 0); | |
3676 | return (v + n - 1) & -n; | |
3677 | } | |
3678 | ||
3679 | ULONGEST | |
3680 | align_down (ULONGEST v, int n) | |
3681 | { | |
3682 | /* Check that N is really a power of two. */ | |
3683 | gdb_assert (n && (n & (n-1)) == 0); | |
3684 | return (v & -n); | |
3685 | } | |
ae5a43e0 DJ |
3686 | |
3687 | /* Allocation function for the libiberty hash table which uses an | |
3688 | obstack. The obstack is passed as DATA. */ | |
3689 | ||
3690 | void * | |
3691 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
3692 | { | |
3693 | unsigned int total = size * count; | |
3694 | void *ptr = obstack_alloc ((struct obstack *) data, total); | |
e0627e85 | 3695 | |
ae5a43e0 DJ |
3696 | memset (ptr, 0, total); |
3697 | return ptr; | |
3698 | } | |
3699 | ||
3700 | /* Trivial deallocation function for the libiberty splay tree and hash | |
3701 | table - don't deallocate anything. Rely on later deletion of the | |
3702 | obstack. DATA will be the obstack, although it is not needed | |
3703 | here. */ | |
3704 | ||
3705 | void | |
3706 | dummy_obstack_deallocate (void *object, void *data) | |
3707 | { | |
3708 | return; | |
3709 | } | |
253c8abb DJ |
3710 | |
3711 | /* The bit offset of the highest byte in a ULONGEST, for overflow | |
3712 | checking. */ | |
3713 | ||
3714 | #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT) | |
3715 | ||
3716 | /* True (non-zero) iff DIGIT is a valid digit in radix BASE, | |
3717 | where 2 <= BASE <= 36. */ | |
3718 | ||
3719 | static int | |
3720 | is_digit_in_base (unsigned char digit, int base) | |
3721 | { | |
3722 | if (!isalnum (digit)) | |
3723 | return 0; | |
3724 | if (base <= 10) | |
3725 | return (isdigit (digit) && digit < base + '0'); | |
3726 | else | |
3727 | return (isdigit (digit) || tolower (digit) < base - 10 + 'a'); | |
3728 | } | |
3729 | ||
3730 | static int | |
3731 | digit_to_int (unsigned char c) | |
3732 | { | |
3733 | if (isdigit (c)) | |
3734 | return c - '0'; | |
3735 | else | |
3736 | return tolower (c) - 'a' + 10; | |
3737 | } | |
3738 | ||
3739 | /* As for strtoul, but for ULONGEST results. */ | |
3740 | ||
3741 | ULONGEST | |
3742 | strtoulst (const char *num, const char **trailer, int base) | |
3743 | { | |
3744 | unsigned int high_part; | |
3745 | ULONGEST result; | |
3746 | int minus = 0; | |
3747 | int i = 0; | |
3748 | ||
3749 | /* Skip leading whitespace. */ | |
3750 | while (isspace (num[i])) | |
3751 | i++; | |
3752 | ||
3753 | /* Handle prefixes. */ | |
3754 | if (num[i] == '+') | |
3755 | i++; | |
3756 | else if (num[i] == '-') | |
3757 | { | |
3758 | minus = 1; | |
3759 | i++; | |
3760 | } | |
3761 | ||
3762 | if (base == 0 || base == 16) | |
3763 | { | |
3764 | if (num[i] == '0' && (num[i + 1] == 'x' || num[i + 1] == 'X')) | |
3765 | { | |
3766 | i += 2; | |
3767 | if (base == 0) | |
3768 | base = 16; | |
3769 | } | |
3770 | } | |
3771 | ||
3772 | if (base == 0 && num[i] == '0') | |
3773 | base = 8; | |
3774 | ||
3775 | if (base == 0) | |
3776 | base = 10; | |
3777 | ||
3778 | if (base < 2 || base > 36) | |
3779 | { | |
3780 | errno = EINVAL; | |
3781 | return 0; | |
3782 | } | |
3783 | ||
3784 | result = high_part = 0; | |
3785 | for (; is_digit_in_base (num[i], base); i += 1) | |
3786 | { | |
3787 | result = result * base + digit_to_int (num[i]); | |
3788 | high_part = high_part * base + (unsigned int) (result >> HIGH_BYTE_POSN); | |
3789 | result &= ((ULONGEST) 1 << HIGH_BYTE_POSN) - 1; | |
3790 | if (high_part > 0xff) | |
3791 | { | |
3792 | errno = ERANGE; | |
3793 | result = ~ (ULONGEST) 0; | |
3794 | high_part = 0; | |
3795 | minus = 0; | |
3796 | break; | |
3797 | } | |
3798 | } | |
3799 | ||
3800 | if (trailer != NULL) | |
3801 | *trailer = &num[i]; | |
3802 | ||
3803 | result = result + ((ULONGEST) high_part << HIGH_BYTE_POSN); | |
3804 | if (minus) | |
3805 | return -result; | |
3806 | else | |
3807 | return result; | |
3808 | } | |
e1024ff1 DJ |
3809 | |
3810 | /* Simple, portable version of dirname that does not modify its | |
3811 | argument. */ | |
3812 | ||
3813 | char * | |
3814 | ldirname (const char *filename) | |
3815 | { | |
3816 | const char *base = lbasename (filename); | |
3817 | char *dirname; | |
3818 | ||
3819 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
3820 | --base; | |
3821 | ||
3822 | if (base == filename) | |
3823 | return NULL; | |
3824 | ||
3825 | dirname = xmalloc (base - filename + 2); | |
3826 | memcpy (dirname, filename, base - filename); | |
3827 | ||
3828 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
3829 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
3830 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
3831 | && !IS_DIR_SEPARATOR (filename[0])) | |
3832 | dirname[base++ - filename] = '.'; | |
3833 | ||
3834 | dirname[base - filename] = '\0'; | |
3835 | return dirname; | |
3836 | } | |
d1a41061 PP |
3837 | |
3838 | /* Call libiberty's buildargv, and return the result. | |
3839 | If buildargv fails due to out-of-memory, call nomem. | |
3840 | Therefore, the returned value is guaranteed to be non-NULL, | |
3841 | unless the parameter itself is NULL. */ | |
3842 | ||
3843 | char ** | |
3844 | gdb_buildargv (const char *s) | |
3845 | { | |
3846 | char **argv = buildargv (s); | |
e0627e85 | 3847 | |
d1a41061 PP |
3848 | if (s != NULL && argv == NULL) |
3849 | nomem (0); | |
3850 | return argv; | |
3851 | } | |
3c16cced | 3852 | |
dc146f7c VP |
3853 | int |
3854 | compare_positive_ints (const void *ap, const void *bp) | |
3855 | { | |
3856 | /* Because we know we're comparing two ints which are positive, | |
3857 | there's no danger of overflow here. */ | |
3858 | return * (int *) ap - * (int *) bp; | |
3859 | } | |
3860 | ||
d18b8b7a HZ |
3861 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3862 | #define AMBIGUOUS_MESS2 ".\nUse \"set gnutarget format-name\" to specify the format." | |
3863 | ||
3864 | const char * | |
3865 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) | |
3866 | { | |
3867 | char *ret, *retp; | |
3868 | int ret_len; | |
3869 | char **p; | |
3870 | ||
3871 | /* Check if errmsg just need simple return. */ | |
3872 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
3873 | return bfd_errmsg (error_tag); | |
3874 | ||
3875 | ret_len = strlen (bfd_errmsg (error_tag)) + strlen (AMBIGUOUS_MESS1) | |
3876 | + strlen (AMBIGUOUS_MESS2); | |
3877 | for (p = matching; *p; p++) | |
3878 | ret_len += strlen (*p) + 1; | |
3879 | ret = xmalloc (ret_len + 1); | |
3880 | retp = ret; | |
3881 | make_cleanup (xfree, ret); | |
3882 | ||
3883 | strcpy (retp, bfd_errmsg (error_tag)); | |
3884 | retp += strlen (retp); | |
3885 | ||
3886 | strcpy (retp, AMBIGUOUS_MESS1); | |
3887 | retp += strlen (retp); | |
3888 | ||
3889 | for (p = matching; *p; p++) | |
3890 | { | |
3891 | sprintf (retp, " %s", *p); | |
3892 | retp += strlen (retp); | |
3893 | } | |
3894 | xfree (matching); | |
3895 | ||
3896 | strcpy (retp, AMBIGUOUS_MESS2); | |
3897 | ||
3898 | return ret; | |
3899 | } | |
3900 | ||
74164c56 JK |
3901 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
3902 | ||
3903 | int | |
3904 | parse_pid_to_attach (char *args) | |
3905 | { | |
3906 | unsigned long pid; | |
3907 | char *dummy; | |
3908 | ||
3909 | if (!args) | |
3910 | error_no_arg (_("process-id to attach")); | |
3911 | ||
3912 | dummy = args; | |
3913 | pid = strtoul (args, &dummy, 0); | |
3914 | /* Some targets don't set errno on errors, grrr! */ | |
3915 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
3916 | error (_("Illegal process-id: %s."), args); | |
3917 | ||
3918 | return pid; | |
3919 | } | |
3920 | ||
2c0b251b PA |
3921 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
3922 | extern initialize_file_ftype _initialize_utils; | |
3923 | ||
3c16cced PA |
3924 | void |
3925 | _initialize_utils (void) | |
3926 | { | |
3927 | add_internal_problem_command (&internal_error_problem); | |
3928 | add_internal_problem_command (&internal_warning_problem); | |
3929 | } |