Commit | Line | Data |
---|---|---|
c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
a752853e AC |
2 | Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
3 | 1996, 1997, 1998, 1999, 2000, 2001, 2002 | |
d9fcf2fb | 4 | Free Software Foundation, Inc. |
c906108c | 5 | |
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b JM |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
c906108c | 22 | |
f33c6cbf AC |
23 | /* FIXME: cagney/2002-02-28: The GDB coding standard indicates that |
24 | "defs.h" should be included first. Unfortunatly some systems | |
25 | (currently Debian GNU/Linux) include the <stdbool.h> via <curses.h> | |
26 | and they clash with "bfd.h"'s definiton of true/false. The correct | |
27 | fix is to remove true/false from "bfd.h", however, until that | |
28 | happens, hack around it by including "config.h" and <curses.h> | |
29 | first. */ | |
30 | ||
4e8f7a8b | 31 | #include "config.h" |
c906108c SS |
32 | |
33 | #ifdef HAVE_CURSES_H | |
34 | #include <curses.h> | |
35 | #endif | |
36 | #ifdef HAVE_TERM_H | |
37 | #include <term.h> | |
38 | #endif | |
39 | ||
4e8f7a8b DJ |
40 | #include "defs.h" |
41 | #include "gdb_assert.h" | |
42 | #include <ctype.h> | |
43 | #include "gdb_string.h" | |
44 | #include "event-top.h" | |
45 | ||
9d271fd8 AC |
46 | #ifdef __GO32__ |
47 | #include <pc.h> | |
48 | #endif | |
49 | ||
c906108c SS |
50 | /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */ |
51 | #ifdef reg | |
52 | #undef reg | |
53 | #endif | |
54 | ||
042be3a9 | 55 | #include <signal.h> |
c906108c SS |
56 | #include "gdbcmd.h" |
57 | #include "serial.h" | |
58 | #include "bfd.h" | |
59 | #include "target.h" | |
60 | #include "demangle.h" | |
61 | #include "expression.h" | |
62 | #include "language.h" | |
63 | #include "annotate.h" | |
64 | ||
ac2e2ef7 AC |
65 | #include "inferior.h" /* for signed_pointer_to_address */ |
66 | ||
2d1b2124 AC |
67 | #include <sys/param.h> /* For MAXPATHLEN */ |
68 | ||
c906108c SS |
69 | #include <readline/readline.h> |
70 | ||
ed1801df AC |
71 | #ifdef USE_MMALLOC |
72 | #include "mmalloc.h" | |
73 | #endif | |
74 | ||
3c37485b AC |
75 | #ifdef NEED_DECLARATION_MALLOC |
76 | extern PTR malloc (); | |
77 | #endif | |
0e52036f AC |
78 | #ifdef NEED_DECLARATION_REALLOC |
79 | extern PTR realloc (); | |
80 | #endif | |
81b8eb80 AC |
81 | #ifdef NEED_DECLARATION_FREE |
82 | extern void free (); | |
83 | #endif | |
a4db0f07 RH |
84 | /* Actually, we'll never have the decl, since we don't define _GNU_SOURCE. */ |
85 | #if defined(HAVE_CANONICALIZE_FILE_NAME) \ | |
86 | && defined(NEED_DECLARATION_CANONICALIZE_FILE_NAME) | |
87 | extern char *canonicalize_file_name (const char *); | |
88 | #endif | |
81b8eb80 | 89 | |
c906108c SS |
90 | /* readline defines this. */ |
91 | #undef savestring | |
92 | ||
507f3c78 | 93 | void (*error_begin_hook) (void); |
c906108c | 94 | |
2acceee2 JM |
95 | /* Holds the last error message issued by gdb */ |
96 | ||
d9fcf2fb | 97 | static struct ui_file *gdb_lasterr; |
2acceee2 | 98 | |
c906108c SS |
99 | /* Prototypes for local functions */ |
100 | ||
d9fcf2fb JM |
101 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
102 | va_list, int); | |
c906108c | 103 | |
d9fcf2fb | 104 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c SS |
105 | |
106 | #if defined (USE_MMALLOC) && !defined (NO_MMCHECK) | |
a14ed312 | 107 | static void malloc_botch (void); |
c906108c SS |
108 | #endif |
109 | ||
a14ed312 | 110 | static void prompt_for_continue (void); |
c906108c | 111 | |
a14ed312 | 112 | static void set_width_command (char *, int, struct cmd_list_element *); |
c906108c | 113 | |
a14ed312 | 114 | static void set_width (void); |
c906108c | 115 | |
c906108c SS |
116 | /* Chain of cleanup actions established with make_cleanup, |
117 | to be executed if an error happens. */ | |
118 | ||
c5aa993b JM |
119 | static struct cleanup *cleanup_chain; /* cleaned up after a failed command */ |
120 | static struct cleanup *final_cleanup_chain; /* cleaned up when gdb exits */ | |
121 | static struct cleanup *run_cleanup_chain; /* cleaned up on each 'run' */ | |
122 | static struct cleanup *exec_cleanup_chain; /* cleaned up on each execution command */ | |
6426a772 JM |
123 | /* cleaned up on each error from within an execution command */ |
124 | static struct cleanup *exec_error_cleanup_chain; | |
43ff13b4 JM |
125 | |
126 | /* Pointer to what is left to do for an execution command after the | |
127 | target stops. Used only in asynchronous mode, by targets that | |
128 | support async execution. The finish and until commands use it. So | |
129 | does the target extended-remote command. */ | |
130 | struct continuation *cmd_continuation; | |
c2d11a7d | 131 | struct continuation *intermediate_continuation; |
c906108c SS |
132 | |
133 | /* Nonzero if we have job control. */ | |
134 | ||
135 | int job_control; | |
136 | ||
137 | /* Nonzero means a quit has been requested. */ | |
138 | ||
139 | int quit_flag; | |
140 | ||
141 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
142 | than waiting until QUIT is executed. Be careful in setting this; | |
143 | code which executes with immediate_quit set has to be very careful | |
144 | about being able to deal with being interrupted at any time. It is | |
145 | almost always better to use QUIT; the only exception I can think of | |
146 | is being able to quit out of a system call (using EINTR loses if | |
147 | the SIGINT happens between the previous QUIT and the system call). | |
148 | To immediately quit in the case in which a SIGINT happens between | |
149 | the previous QUIT and setting immediate_quit (desirable anytime we | |
150 | expect to block), call QUIT after setting immediate_quit. */ | |
151 | ||
152 | int immediate_quit; | |
153 | ||
154 | /* Nonzero means that encoded C++ names should be printed out in their | |
155 | C++ form rather than raw. */ | |
156 | ||
157 | int demangle = 1; | |
158 | ||
159 | /* Nonzero means that encoded C++ names should be printed out in their | |
160 | C++ form even in assembler language displays. If this is set, but | |
161 | DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */ | |
162 | ||
163 | int asm_demangle = 0; | |
164 | ||
165 | /* Nonzero means that strings with character values >0x7F should be printed | |
166 | as octal escapes. Zero means just print the value (e.g. it's an | |
167 | international character, and the terminal or window can cope.) */ | |
168 | ||
169 | int sevenbit_strings = 0; | |
170 | ||
171 | /* String to be printed before error messages, if any. */ | |
172 | ||
173 | char *error_pre_print; | |
174 | ||
175 | /* String to be printed before quit messages, if any. */ | |
176 | ||
177 | char *quit_pre_print; | |
178 | ||
179 | /* String to be printed before warning messages, if any. */ | |
180 | ||
181 | char *warning_pre_print = "\nwarning: "; | |
182 | ||
183 | int pagination_enabled = 1; | |
c906108c | 184 | \f |
c5aa993b | 185 | |
c906108c SS |
186 | /* Add a new cleanup to the cleanup_chain, |
187 | and return the previous chain pointer | |
188 | to be passed later to do_cleanups or discard_cleanups. | |
189 | Args are FUNCTION to clean up with, and ARG to pass to it. */ | |
190 | ||
191 | struct cleanup * | |
e4005526 | 192 | make_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 193 | { |
c5aa993b | 194 | return make_my_cleanup (&cleanup_chain, function, arg); |
c906108c SS |
195 | } |
196 | ||
197 | struct cleanup * | |
e4005526 | 198 | make_final_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 199 | { |
c5aa993b | 200 | return make_my_cleanup (&final_cleanup_chain, function, arg); |
c906108c | 201 | } |
7a292a7a | 202 | |
c906108c | 203 | struct cleanup * |
e4005526 | 204 | make_run_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 205 | { |
c5aa993b | 206 | return make_my_cleanup (&run_cleanup_chain, function, arg); |
c906108c | 207 | } |
7a292a7a | 208 | |
43ff13b4 | 209 | struct cleanup * |
e4005526 | 210 | make_exec_cleanup (make_cleanup_ftype *function, void *arg) |
43ff13b4 | 211 | { |
c5aa993b | 212 | return make_my_cleanup (&exec_cleanup_chain, function, arg); |
43ff13b4 JM |
213 | } |
214 | ||
6426a772 | 215 | struct cleanup * |
e4005526 | 216 | make_exec_error_cleanup (make_cleanup_ftype *function, void *arg) |
6426a772 JM |
217 | { |
218 | return make_my_cleanup (&exec_error_cleanup_chain, function, arg); | |
219 | } | |
220 | ||
7a292a7a | 221 | static void |
fba45db2 | 222 | do_freeargv (void *arg) |
7a292a7a | 223 | { |
c5aa993b | 224 | freeargv ((char **) arg); |
7a292a7a SS |
225 | } |
226 | ||
227 | struct cleanup * | |
fba45db2 | 228 | make_cleanup_freeargv (char **arg) |
7a292a7a SS |
229 | { |
230 | return make_my_cleanup (&cleanup_chain, do_freeargv, arg); | |
231 | } | |
232 | ||
5c65bbb6 AC |
233 | static void |
234 | do_bfd_close_cleanup (void *arg) | |
235 | { | |
236 | bfd_close (arg); | |
237 | } | |
238 | ||
239 | struct cleanup * | |
240 | make_cleanup_bfd_close (bfd *abfd) | |
241 | { | |
242 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
243 | } | |
244 | ||
f5ff8c83 AC |
245 | static void |
246 | do_close_cleanup (void *arg) | |
247 | { | |
f042532c AC |
248 | int *fd = arg; |
249 | close (*fd); | |
250 | xfree (fd); | |
f5ff8c83 AC |
251 | } |
252 | ||
253 | struct cleanup * | |
254 | make_cleanup_close (int fd) | |
255 | { | |
f042532c AC |
256 | int *saved_fd = xmalloc (sizeof (fd)); |
257 | *saved_fd = fd; | |
258 | return make_cleanup (do_close_cleanup, saved_fd); | |
f5ff8c83 AC |
259 | } |
260 | ||
11cf8741 | 261 | static void |
d9fcf2fb | 262 | do_ui_file_delete (void *arg) |
11cf8741 | 263 | { |
d9fcf2fb | 264 | ui_file_delete (arg); |
11cf8741 JM |
265 | } |
266 | ||
267 | struct cleanup * | |
d9fcf2fb | 268 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 269 | { |
d9fcf2fb | 270 | return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg); |
11cf8741 JM |
271 | } |
272 | ||
c906108c | 273 | struct cleanup * |
e4005526 AC |
274 | make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function, |
275 | void *arg) | |
c906108c SS |
276 | { |
277 | register struct cleanup *new | |
c5aa993b | 278 | = (struct cleanup *) xmalloc (sizeof (struct cleanup)); |
c906108c SS |
279 | register struct cleanup *old_chain = *pmy_chain; |
280 | ||
281 | new->next = *pmy_chain; | |
282 | new->function = function; | |
283 | new->arg = arg; | |
284 | *pmy_chain = new; | |
285 | ||
286 | return old_chain; | |
287 | } | |
288 | ||
289 | /* Discard cleanups and do the actions they describe | |
290 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
291 | ||
292 | void | |
fba45db2 | 293 | do_cleanups (register struct cleanup *old_chain) |
c906108c | 294 | { |
c5aa993b | 295 | do_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
296 | } |
297 | ||
298 | void | |
fba45db2 | 299 | do_final_cleanups (register struct cleanup *old_chain) |
c906108c | 300 | { |
c5aa993b | 301 | do_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
302 | } |
303 | ||
304 | void | |
fba45db2 | 305 | do_run_cleanups (register struct cleanup *old_chain) |
c906108c | 306 | { |
c5aa993b | 307 | do_my_cleanups (&run_cleanup_chain, old_chain); |
c906108c SS |
308 | } |
309 | ||
43ff13b4 | 310 | void |
fba45db2 | 311 | do_exec_cleanups (register struct cleanup *old_chain) |
43ff13b4 | 312 | { |
c5aa993b | 313 | do_my_cleanups (&exec_cleanup_chain, old_chain); |
43ff13b4 JM |
314 | } |
315 | ||
6426a772 | 316 | void |
fba45db2 | 317 | do_exec_error_cleanups (register struct cleanup *old_chain) |
6426a772 JM |
318 | { |
319 | do_my_cleanups (&exec_error_cleanup_chain, old_chain); | |
320 | } | |
321 | ||
c906108c | 322 | void |
fba45db2 KB |
323 | do_my_cleanups (register struct cleanup **pmy_chain, |
324 | register struct cleanup *old_chain) | |
c906108c SS |
325 | { |
326 | register struct cleanup *ptr; | |
327 | while ((ptr = *pmy_chain) != old_chain) | |
328 | { | |
329 | *pmy_chain = ptr->next; /* Do this first incase recursion */ | |
330 | (*ptr->function) (ptr->arg); | |
b8c9b27d | 331 | xfree (ptr); |
c906108c SS |
332 | } |
333 | } | |
334 | ||
335 | /* Discard cleanups, not doing the actions they describe, | |
336 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
337 | ||
338 | void | |
fba45db2 | 339 | discard_cleanups (register struct cleanup *old_chain) |
c906108c | 340 | { |
c5aa993b | 341 | discard_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
342 | } |
343 | ||
344 | void | |
fba45db2 | 345 | discard_final_cleanups (register struct cleanup *old_chain) |
c906108c | 346 | { |
c5aa993b | 347 | discard_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
348 | } |
349 | ||
6426a772 | 350 | void |
fba45db2 | 351 | discard_exec_error_cleanups (register struct cleanup *old_chain) |
6426a772 JM |
352 | { |
353 | discard_my_cleanups (&exec_error_cleanup_chain, old_chain); | |
354 | } | |
355 | ||
c906108c | 356 | void |
fba45db2 KB |
357 | discard_my_cleanups (register struct cleanup **pmy_chain, |
358 | register struct cleanup *old_chain) | |
c906108c SS |
359 | { |
360 | register struct cleanup *ptr; | |
361 | while ((ptr = *pmy_chain) != old_chain) | |
362 | { | |
363 | *pmy_chain = ptr->next; | |
b8c9b27d | 364 | xfree (ptr); |
c906108c SS |
365 | } |
366 | } | |
367 | ||
368 | /* Set the cleanup_chain to 0, and return the old cleanup chain. */ | |
369 | struct cleanup * | |
fba45db2 | 370 | save_cleanups (void) |
c906108c | 371 | { |
c5aa993b | 372 | return save_my_cleanups (&cleanup_chain); |
c906108c SS |
373 | } |
374 | ||
375 | struct cleanup * | |
fba45db2 | 376 | save_final_cleanups (void) |
c906108c | 377 | { |
c5aa993b | 378 | return save_my_cleanups (&final_cleanup_chain); |
c906108c SS |
379 | } |
380 | ||
381 | struct cleanup * | |
fba45db2 | 382 | save_my_cleanups (struct cleanup **pmy_chain) |
c906108c SS |
383 | { |
384 | struct cleanup *old_chain = *pmy_chain; | |
385 | ||
386 | *pmy_chain = 0; | |
387 | return old_chain; | |
388 | } | |
389 | ||
390 | /* Restore the cleanup chain from a previously saved chain. */ | |
391 | void | |
fba45db2 | 392 | restore_cleanups (struct cleanup *chain) |
c906108c | 393 | { |
c5aa993b | 394 | restore_my_cleanups (&cleanup_chain, chain); |
c906108c SS |
395 | } |
396 | ||
397 | void | |
fba45db2 | 398 | restore_final_cleanups (struct cleanup *chain) |
c906108c | 399 | { |
c5aa993b | 400 | restore_my_cleanups (&final_cleanup_chain, chain); |
c906108c SS |
401 | } |
402 | ||
403 | void | |
fba45db2 | 404 | restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain) |
c906108c SS |
405 | { |
406 | *pmy_chain = chain; | |
407 | } | |
408 | ||
409 | /* This function is useful for cleanups. | |
410 | Do | |
411 | ||
c5aa993b JM |
412 | foo = xmalloc (...); |
413 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
414 | |
415 | to arrange to free the object thus allocated. */ | |
416 | ||
417 | void | |
2f9429ae | 418 | free_current_contents (void *ptr) |
c906108c | 419 | { |
2f9429ae | 420 | void **location = ptr; |
e2f9c474 | 421 | if (location == NULL) |
8e65ff28 AC |
422 | internal_error (__FILE__, __LINE__, |
423 | "free_current_contents: NULL pointer"); | |
2f9429ae | 424 | if (*location != NULL) |
e2f9c474 | 425 | { |
b8c9b27d | 426 | xfree (*location); |
e2f9c474 AC |
427 | *location = NULL; |
428 | } | |
c906108c SS |
429 | } |
430 | ||
431 | /* Provide a known function that does nothing, to use as a base for | |
432 | for a possibly long chain of cleanups. This is useful where we | |
433 | use the cleanup chain for handling normal cleanups as well as dealing | |
434 | with cleanups that need to be done as a result of a call to error(). | |
435 | In such cases, we may not be certain where the first cleanup is, unless | |
436 | we have a do-nothing one to always use as the base. */ | |
437 | ||
438 | /* ARGSUSED */ | |
439 | void | |
e4005526 | 440 | null_cleanup (void *arg) |
c906108c SS |
441 | { |
442 | } | |
443 | ||
74f832da | 444 | /* Add a continuation to the continuation list, the global list |
c2d11a7d | 445 | cmd_continuation. The new continuation will be added at the front.*/ |
43ff13b4 | 446 | void |
74f832da KB |
447 | add_continuation (void (*continuation_hook) (struct continuation_arg *), |
448 | struct continuation_arg *arg_list) | |
43ff13b4 | 449 | { |
c5aa993b | 450 | struct continuation *continuation_ptr; |
43ff13b4 | 451 | |
c5aa993b JM |
452 | continuation_ptr = (struct continuation *) xmalloc (sizeof (struct continuation)); |
453 | continuation_ptr->continuation_hook = continuation_hook; | |
454 | continuation_ptr->arg_list = arg_list; | |
455 | continuation_ptr->next = cmd_continuation; | |
456 | cmd_continuation = continuation_ptr; | |
43ff13b4 JM |
457 | } |
458 | ||
459 | /* Walk down the cmd_continuation list, and execute all the | |
c2d11a7d JM |
460 | continuations. There is a problem though. In some cases new |
461 | continuations may be added while we are in the middle of this | |
462 | loop. If this happens they will be added in the front, and done | |
463 | before we have a chance of exhausting those that were already | |
464 | there. We need to then save the beginning of the list in a pointer | |
465 | and do the continuations from there on, instead of using the | |
466 | global beginning of list as our iteration pointer.*/ | |
c5aa993b | 467 | void |
fba45db2 | 468 | do_all_continuations (void) |
c2d11a7d JM |
469 | { |
470 | struct continuation *continuation_ptr; | |
471 | struct continuation *saved_continuation; | |
472 | ||
473 | /* Copy the list header into another pointer, and set the global | |
474 | list header to null, so that the global list can change as a side | |
475 | effect of invoking the continuations and the processing of | |
476 | the preexisting continuations will not be affected. */ | |
477 | continuation_ptr = cmd_continuation; | |
478 | cmd_continuation = NULL; | |
479 | ||
480 | /* Work now on the list we have set aside. */ | |
481 | while (continuation_ptr) | |
482 | { | |
483 | (continuation_ptr->continuation_hook) (continuation_ptr->arg_list); | |
484 | saved_continuation = continuation_ptr; | |
485 | continuation_ptr = continuation_ptr->next; | |
b8c9b27d | 486 | xfree (saved_continuation); |
c2d11a7d JM |
487 | } |
488 | } | |
489 | ||
490 | /* Walk down the cmd_continuation list, and get rid of all the | |
491 | continuations. */ | |
492 | void | |
fba45db2 | 493 | discard_all_continuations (void) |
43ff13b4 | 494 | { |
c5aa993b | 495 | struct continuation *continuation_ptr; |
43ff13b4 | 496 | |
c5aa993b JM |
497 | while (cmd_continuation) |
498 | { | |
c5aa993b JM |
499 | continuation_ptr = cmd_continuation; |
500 | cmd_continuation = continuation_ptr->next; | |
b8c9b27d | 501 | xfree (continuation_ptr); |
c5aa993b | 502 | } |
43ff13b4 | 503 | } |
c2c6d25f | 504 | |
57e687d9 | 505 | /* Add a continuation to the continuation list, the global list |
c2d11a7d JM |
506 | intermediate_continuation. The new continuation will be added at the front.*/ |
507 | void | |
74f832da KB |
508 | add_intermediate_continuation (void (*continuation_hook) |
509 | (struct continuation_arg *), | |
510 | struct continuation_arg *arg_list) | |
c2d11a7d JM |
511 | { |
512 | struct continuation *continuation_ptr; | |
513 | ||
514 | continuation_ptr = (struct continuation *) xmalloc (sizeof (struct continuation)); | |
515 | continuation_ptr->continuation_hook = continuation_hook; | |
516 | continuation_ptr->arg_list = arg_list; | |
517 | continuation_ptr->next = intermediate_continuation; | |
518 | intermediate_continuation = continuation_ptr; | |
519 | } | |
520 | ||
521 | /* Walk down the cmd_continuation list, and execute all the | |
522 | continuations. There is a problem though. In some cases new | |
523 | continuations may be added while we are in the middle of this | |
524 | loop. If this happens they will be added in the front, and done | |
525 | before we have a chance of exhausting those that were already | |
526 | there. We need to then save the beginning of the list in a pointer | |
527 | and do the continuations from there on, instead of using the | |
528 | global beginning of list as our iteration pointer.*/ | |
529 | void | |
fba45db2 | 530 | do_all_intermediate_continuations (void) |
c2d11a7d JM |
531 | { |
532 | struct continuation *continuation_ptr; | |
533 | struct continuation *saved_continuation; | |
534 | ||
535 | /* Copy the list header into another pointer, and set the global | |
536 | list header to null, so that the global list can change as a side | |
537 | effect of invoking the continuations and the processing of | |
538 | the preexisting continuations will not be affected. */ | |
539 | continuation_ptr = intermediate_continuation; | |
540 | intermediate_continuation = NULL; | |
541 | ||
542 | /* Work now on the list we have set aside. */ | |
543 | while (continuation_ptr) | |
544 | { | |
545 | (continuation_ptr->continuation_hook) (continuation_ptr->arg_list); | |
546 | saved_continuation = continuation_ptr; | |
547 | continuation_ptr = continuation_ptr->next; | |
b8c9b27d | 548 | xfree (saved_continuation); |
c2d11a7d JM |
549 | } |
550 | } | |
551 | ||
c2c6d25f JM |
552 | /* Walk down the cmd_continuation list, and get rid of all the |
553 | continuations. */ | |
554 | void | |
fba45db2 | 555 | discard_all_intermediate_continuations (void) |
c2c6d25f JM |
556 | { |
557 | struct continuation *continuation_ptr; | |
558 | ||
c2d11a7d | 559 | while (intermediate_continuation) |
c2c6d25f | 560 | { |
c2d11a7d JM |
561 | continuation_ptr = intermediate_continuation; |
562 | intermediate_continuation = continuation_ptr->next; | |
b8c9b27d | 563 | xfree (continuation_ptr); |
c2c6d25f JM |
564 | } |
565 | } | |
566 | ||
c906108c | 567 | \f |
c5aa993b | 568 | |
f5a96129 AC |
569 | /* Print a warning message. The first argument STRING is the warning |
570 | message, used as an fprintf format string, the second is the | |
571 | va_list of arguments for that string. A warning is unfiltered (not | |
572 | paginated) so that the user does not need to page through each | |
573 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
574 | |
575 | void | |
f5a96129 | 576 | vwarning (const char *string, va_list args) |
c906108c | 577 | { |
f5a96129 AC |
578 | if (warning_hook) |
579 | (*warning_hook) (string, args); | |
580 | else | |
581 | { | |
582 | target_terminal_ours (); | |
583 | wrap_here (""); /* Force out any buffered output */ | |
584 | gdb_flush (gdb_stdout); | |
585 | if (warning_pre_print) | |
586 | fprintf_unfiltered (gdb_stderr, warning_pre_print); | |
587 | vfprintf_unfiltered (gdb_stderr, string, args); | |
588 | fprintf_unfiltered (gdb_stderr, "\n"); | |
589 | va_end (args); | |
590 | } | |
c906108c SS |
591 | } |
592 | ||
593 | /* Print a warning message. | |
594 | The first argument STRING is the warning message, used as a fprintf string, | |
595 | and the remaining args are passed as arguments to it. | |
596 | The primary difference between warnings and errors is that a warning | |
597 | does not force the return to command level. */ | |
598 | ||
c906108c | 599 | void |
c5aa993b | 600 | warning (const char *string,...) |
c906108c SS |
601 | { |
602 | va_list args; | |
c906108c | 603 | va_start (args, string); |
f5a96129 AC |
604 | vwarning (string, args); |
605 | va_end (args); | |
c906108c SS |
606 | } |
607 | ||
c906108c SS |
608 | /* Print an error message and return to command level. |
609 | The first argument STRING is the error message, used as a fprintf string, | |
610 | and the remaining args are passed as arguments to it. */ | |
611 | ||
4ce44c66 JM |
612 | NORETURN void |
613 | verror (const char *string, va_list args) | |
614 | { | |
fffee0be AC |
615 | struct ui_file *tmp_stream = mem_fileopen (); |
616 | make_cleanup_ui_file_delete (tmp_stream); | |
617 | vfprintf_unfiltered (tmp_stream, string, args); | |
618 | error_stream (tmp_stream); | |
4ce44c66 JM |
619 | } |
620 | ||
c906108c | 621 | NORETURN void |
c5aa993b | 622 | error (const char *string,...) |
c906108c SS |
623 | { |
624 | va_list args; | |
c906108c | 625 | va_start (args, string); |
4ce44c66 JM |
626 | verror (string, args); |
627 | va_end (args); | |
c906108c SS |
628 | } |
629 | ||
fffee0be AC |
630 | static void |
631 | do_write (void *data, const char *buffer, long length_buffer) | |
632 | { | |
633 | ui_file_write (data, buffer, length_buffer); | |
634 | } | |
635 | ||
2acceee2 | 636 | NORETURN void |
d9fcf2fb | 637 | error_stream (struct ui_file *stream) |
2acceee2 | 638 | { |
fffee0be AC |
639 | if (error_begin_hook) |
640 | error_begin_hook (); | |
641 | ||
642 | /* Copy the stream into the GDB_LASTERR buffer. */ | |
643 | ui_file_rewind (gdb_lasterr); | |
644 | ui_file_put (stream, do_write, gdb_lasterr); | |
645 | ||
646 | /* Write the message plus any error_pre_print to gdb_stderr. */ | |
647 | target_terminal_ours (); | |
648 | wrap_here (""); /* Force out any buffered output */ | |
649 | gdb_flush (gdb_stdout); | |
650 | annotate_error_begin (); | |
651 | if (error_pre_print) | |
652 | fprintf_filtered (gdb_stderr, error_pre_print); | |
653 | ui_file_put (stream, do_write, gdb_stderr); | |
654 | fprintf_filtered (gdb_stderr, "\n"); | |
655 | ||
b5a2688f | 656 | throw_exception (RETURN_ERROR); |
2acceee2 JM |
657 | } |
658 | ||
659 | /* Get the last error message issued by gdb */ | |
660 | ||
661 | char * | |
662 | error_last_message (void) | |
663 | { | |
4ce44c66 | 664 | long len; |
d9fcf2fb | 665 | return ui_file_xstrdup (gdb_lasterr, &len); |
2acceee2 | 666 | } |
4ce44c66 | 667 | |
2acceee2 JM |
668 | /* This is to be called by main() at the very beginning */ |
669 | ||
670 | void | |
671 | error_init (void) | |
672 | { | |
4ce44c66 | 673 | gdb_lasterr = mem_fileopen (); |
2acceee2 | 674 | } |
c906108c | 675 | |
96baa820 JM |
676 | /* Print a message reporting an internal error. Ask the user if they |
677 | want to continue, dump core, or just exit. */ | |
c906108c | 678 | |
c906108c | 679 | NORETURN void |
8e65ff28 AC |
680 | internal_verror (const char *file, int line, |
681 | const char *fmt, va_list ap) | |
c906108c | 682 | { |
96baa820 JM |
683 | static char msg[] = "Internal GDB error: recursive internal error.\n"; |
684 | static int dejavu = 0; | |
375fc983 | 685 | int quit_p; |
7be570e7 | 686 | int dump_core_p; |
c906108c | 687 | |
96baa820 JM |
688 | /* don't allow infinite error recursion. */ |
689 | switch (dejavu) | |
690 | { | |
691 | case 0: | |
692 | dejavu = 1; | |
693 | break; | |
694 | case 1: | |
695 | dejavu = 2; | |
696 | fputs_unfiltered (msg, gdb_stderr); | |
5c7dd748 | 697 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
96baa820 JM |
698 | default: |
699 | dejavu = 3; | |
700 | write (STDERR_FILENO, msg, sizeof (msg)); | |
701 | exit (1); | |
702 | } | |
c906108c | 703 | |
96baa820 | 704 | /* Try to get the message out */ |
4261bedc | 705 | target_terminal_ours (); |
8e65ff28 | 706 | fprintf_unfiltered (gdb_stderr, "%s:%d: gdb-internal-error: ", file, line); |
4ce44c66 | 707 | vfprintf_unfiltered (gdb_stderr, fmt, ap); |
96baa820 | 708 | fputs_unfiltered ("\n", gdb_stderr); |
c906108c | 709 | |
375fc983 | 710 | /* Default (yes/batch case) is to quit GDB. When in batch mode this |
7be570e7 | 711 | lessens the likelhood of GDB going into an infinate loop. */ |
375fc983 | 712 | quit_p = query ("\ |
62fd9fad | 713 | An internal GDB error was detected. This may make further\n\ |
375fc983 | 714 | debugging unreliable. Quit this debugging session? "); |
7be570e7 | 715 | |
375fc983 AC |
716 | /* Default (yes/batch case) is to dump core. This leaves a GDB |
717 | dropping so that it is easier to see that something went wrong to | |
718 | GDB. */ | |
7be570e7 JM |
719 | dump_core_p = query ("\ |
720 | Create a core file containing the current state of GDB? "); | |
721 | ||
375fc983 | 722 | if (quit_p) |
7be570e7 JM |
723 | { |
724 | if (dump_core_p) | |
375fc983 AC |
725 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
726 | else | |
727 | exit (1); | |
7be570e7 JM |
728 | } |
729 | else | |
730 | { | |
731 | if (dump_core_p) | |
375fc983 AC |
732 | { |
733 | if (fork () == 0) | |
734 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
735 | } | |
7be570e7 | 736 | } |
96baa820 JM |
737 | |
738 | dejavu = 0; | |
b5a2688f | 739 | throw_exception (RETURN_ERROR); |
c906108c SS |
740 | } |
741 | ||
4ce44c66 | 742 | NORETURN void |
8e65ff28 | 743 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
744 | { |
745 | va_list ap; | |
746 | va_start (ap, string); | |
4261bedc | 747 | |
8e65ff28 | 748 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
749 | va_end (ap); |
750 | } | |
751 | ||
c906108c SS |
752 | /* The strerror() function can return NULL for errno values that are |
753 | out of range. Provide a "safe" version that always returns a | |
754 | printable string. */ | |
755 | ||
756 | char * | |
fba45db2 | 757 | safe_strerror (int errnum) |
c906108c SS |
758 | { |
759 | char *msg; | |
760 | static char buf[32]; | |
761 | ||
762 | if ((msg = strerror (errnum)) == NULL) | |
763 | { | |
764 | sprintf (buf, "(undocumented errno %d)", errnum); | |
765 | msg = buf; | |
766 | } | |
767 | return (msg); | |
768 | } | |
769 | ||
c906108c SS |
770 | /* Print the system error message for errno, and also mention STRING |
771 | as the file name for which the error was encountered. | |
772 | Then return to command level. */ | |
773 | ||
774 | NORETURN void | |
6972bc8b | 775 | perror_with_name (const char *string) |
c906108c SS |
776 | { |
777 | char *err; | |
778 | char *combined; | |
779 | ||
780 | err = safe_strerror (errno); | |
781 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
782 | strcpy (combined, string); | |
783 | strcat (combined, ": "); | |
784 | strcat (combined, err); | |
785 | ||
786 | /* I understand setting these is a matter of taste. Still, some people | |
787 | may clear errno but not know about bfd_error. Doing this here is not | |
788 | unreasonable. */ | |
789 | bfd_set_error (bfd_error_no_error); | |
790 | errno = 0; | |
791 | ||
c5aa993b | 792 | error ("%s.", combined); |
c906108c SS |
793 | } |
794 | ||
795 | /* Print the system error message for ERRCODE, and also mention STRING | |
796 | as the file name for which the error was encountered. */ | |
797 | ||
798 | void | |
6972bc8b | 799 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
800 | { |
801 | char *err; | |
802 | char *combined; | |
803 | ||
804 | err = safe_strerror (errcode); | |
805 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
806 | strcpy (combined, string); | |
807 | strcat (combined, ": "); | |
808 | strcat (combined, err); | |
809 | ||
810 | /* We want anything which was printed on stdout to come out first, before | |
811 | this message. */ | |
812 | gdb_flush (gdb_stdout); | |
813 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
814 | } | |
815 | ||
816 | /* Control C eventually causes this to be called, at a convenient time. */ | |
817 | ||
818 | void | |
fba45db2 | 819 | quit (void) |
c906108c | 820 | { |
819cc324 | 821 | struct serial *gdb_stdout_serial = serial_fdopen (1); |
c906108c SS |
822 | |
823 | target_terminal_ours (); | |
824 | ||
825 | /* We want all output to appear now, before we print "Quit". We | |
826 | have 3 levels of buffering we have to flush (it's possible that | |
827 | some of these should be changed to flush the lower-level ones | |
828 | too): */ | |
829 | ||
830 | /* 1. The _filtered buffer. */ | |
c5aa993b | 831 | wrap_here ((char *) 0); |
c906108c SS |
832 | |
833 | /* 2. The stdio buffer. */ | |
834 | gdb_flush (gdb_stdout); | |
835 | gdb_flush (gdb_stderr); | |
836 | ||
837 | /* 3. The system-level buffer. */ | |
2cd58942 AC |
838 | serial_drain_output (gdb_stdout_serial); |
839 | serial_un_fdopen (gdb_stdout_serial); | |
c906108c SS |
840 | |
841 | annotate_error_begin (); | |
842 | ||
843 | /* Don't use *_filtered; we don't want to prompt the user to continue. */ | |
844 | if (quit_pre_print) | |
845 | fprintf_unfiltered (gdb_stderr, quit_pre_print); | |
846 | ||
7be570e7 JM |
847 | #ifdef __MSDOS__ |
848 | /* No steenking SIGINT will ever be coming our way when the | |
849 | program is resumed. Don't lie. */ | |
850 | fprintf_unfiltered (gdb_stderr, "Quit\n"); | |
851 | #else | |
c906108c | 852 | if (job_control |
c5aa993b JM |
853 | /* If there is no terminal switching for this target, then we can't |
854 | possibly get screwed by the lack of job control. */ | |
c906108c SS |
855 | || current_target.to_terminal_ours == NULL) |
856 | fprintf_unfiltered (gdb_stderr, "Quit\n"); | |
857 | else | |
858 | fprintf_unfiltered (gdb_stderr, | |
c5aa993b | 859 | "Quit (expect signal SIGINT when the program is resumed)\n"); |
7be570e7 | 860 | #endif |
b5a2688f | 861 | throw_exception (RETURN_QUIT); |
c906108c SS |
862 | } |
863 | ||
c906108c | 864 | /* Control C comes here */ |
c906108c | 865 | void |
fba45db2 | 866 | request_quit (int signo) |
c906108c SS |
867 | { |
868 | quit_flag = 1; | |
869 | /* Restore the signal handler. Harmless with BSD-style signals, needed | |
870 | for System V-style signals. So just always do it, rather than worrying | |
871 | about USG defines and stuff like that. */ | |
872 | signal (signo, request_quit); | |
873 | ||
874 | #ifdef REQUEST_QUIT | |
875 | REQUEST_QUIT; | |
876 | #else | |
c5aa993b | 877 | if (immediate_quit) |
c906108c SS |
878 | quit (); |
879 | #endif | |
880 | } | |
c906108c SS |
881 | \f |
882 | /* Memory management stuff (malloc friends). */ | |
883 | ||
c906108c SS |
884 | #if !defined (USE_MMALLOC) |
885 | ||
c0e61796 AC |
886 | /* NOTE: These must use PTR so that their definition matches the |
887 | declaration found in "mmalloc.h". */ | |
ed9a39eb | 888 | |
ed1801df AC |
889 | static void * |
890 | mmalloc (void *md, size_t size) | |
c906108c | 891 | { |
c0e61796 | 892 | return malloc (size); /* NOTE: GDB's only call to malloc() */ |
c906108c SS |
893 | } |
894 | ||
ed1801df AC |
895 | static void * |
896 | mrealloc (void *md, void *ptr, size_t size) | |
c906108c | 897 | { |
c5aa993b | 898 | if (ptr == 0) /* Guard against old realloc's */ |
c0e61796 | 899 | return mmalloc (md, size); |
c906108c | 900 | else |
c0e61796 AC |
901 | return realloc (ptr, size); /* NOTE: GDB's only call to ralloc() */ |
902 | } | |
903 | ||
ed1801df AC |
904 | static void * |
905 | mcalloc (void *md, size_t number, size_t size) | |
c0e61796 AC |
906 | { |
907 | return calloc (number, size); /* NOTE: GDB's only call to calloc() */ | |
c906108c SS |
908 | } |
909 | ||
ed1801df AC |
910 | static void |
911 | mfree (void *md, void *ptr) | |
c906108c | 912 | { |
c0e61796 | 913 | free (ptr); /* NOTE: GDB's only call to free() */ |
c906108c SS |
914 | } |
915 | ||
c5aa993b | 916 | #endif /* USE_MMALLOC */ |
c906108c SS |
917 | |
918 | #if !defined (USE_MMALLOC) || defined (NO_MMCHECK) | |
919 | ||
920 | void | |
082faf24 | 921 | init_malloc (void *md) |
c906108c SS |
922 | { |
923 | } | |
924 | ||
925 | #else /* Have mmalloc and want corruption checking */ | |
926 | ||
927 | static void | |
fba45db2 | 928 | malloc_botch (void) |
c906108c | 929 | { |
96baa820 | 930 | fprintf_unfiltered (gdb_stderr, "Memory corruption\n"); |
e1e9e218 | 931 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
932 | } |
933 | ||
934 | /* Attempt to install hooks in mmalloc/mrealloc/mfree for the heap specified | |
935 | by MD, to detect memory corruption. Note that MD may be NULL to specify | |
936 | the default heap that grows via sbrk. | |
937 | ||
938 | Note that for freshly created regions, we must call mmcheckf prior to any | |
939 | mallocs in the region. Otherwise, any region which was allocated prior to | |
940 | installing the checking hooks, which is later reallocated or freed, will | |
941 | fail the checks! The mmcheck function only allows initial hooks to be | |
942 | installed before the first mmalloc. However, anytime after we have called | |
943 | mmcheck the first time to install the checking hooks, we can call it again | |
944 | to update the function pointer to the memory corruption handler. | |
945 | ||
946 | Returns zero on failure, non-zero on success. */ | |
947 | ||
948 | #ifndef MMCHECK_FORCE | |
949 | #define MMCHECK_FORCE 0 | |
950 | #endif | |
951 | ||
952 | void | |
082faf24 | 953 | init_malloc (void *md) |
c906108c SS |
954 | { |
955 | if (!mmcheckf (md, malloc_botch, MMCHECK_FORCE)) | |
956 | { | |
957 | /* Don't use warning(), which relies on current_target being set | |
c5aa993b JM |
958 | to something other than dummy_target, until after |
959 | initialize_all_files(). */ | |
c906108c SS |
960 | |
961 | fprintf_unfiltered | |
962 | (gdb_stderr, "warning: failed to install memory consistency checks; "); | |
963 | fprintf_unfiltered | |
964 | (gdb_stderr, "configuration should define NO_MMCHECK or MMCHECK_FORCE\n"); | |
965 | } | |
966 | ||
967 | mmtrace (); | |
968 | } | |
969 | ||
970 | #endif /* Have mmalloc and want corruption checking */ | |
971 | ||
972 | /* Called when a memory allocation fails, with the number of bytes of | |
973 | memory requested in SIZE. */ | |
974 | ||
975 | NORETURN void | |
fba45db2 | 976 | nomem (long size) |
c906108c SS |
977 | { |
978 | if (size > 0) | |
979 | { | |
8e65ff28 AC |
980 | internal_error (__FILE__, __LINE__, |
981 | "virtual memory exhausted: can't allocate %ld bytes.", size); | |
c906108c SS |
982 | } |
983 | else | |
984 | { | |
8e65ff28 AC |
985 | internal_error (__FILE__, __LINE__, |
986 | "virtual memory exhausted."); | |
c906108c SS |
987 | } |
988 | } | |
989 | ||
c0e61796 | 990 | /* The xmmalloc() family of memory management routines. |
c906108c | 991 | |
c0e61796 AC |
992 | These are are like the mmalloc() family except that they implement |
993 | consistent semantics and guard against typical memory management | |
994 | problems: if a malloc fails, an internal error is thrown; if | |
995 | free(NULL) is called, it is ignored; if *alloc(0) is called, NULL | |
996 | is returned. | |
997 | ||
998 | All these routines are implemented using the mmalloc() family. */ | |
999 | ||
1000 | void * | |
1001 | xmmalloc (void *md, size_t size) | |
c906108c | 1002 | { |
c0e61796 | 1003 | void *val; |
c906108c SS |
1004 | |
1005 | if (size == 0) | |
1006 | { | |
1007 | val = NULL; | |
1008 | } | |
c0e61796 | 1009 | else |
c906108c | 1010 | { |
c0e61796 AC |
1011 | val = mmalloc (md, size); |
1012 | if (val == NULL) | |
1013 | nomem (size); | |
c906108c SS |
1014 | } |
1015 | return (val); | |
1016 | } | |
1017 | ||
c0e61796 AC |
1018 | void * |
1019 | xmrealloc (void *md, void *ptr, size_t size) | |
c906108c | 1020 | { |
c0e61796 | 1021 | void *val; |
c906108c | 1022 | |
d7fa9de0 | 1023 | if (size == 0) |
c906108c | 1024 | { |
d7fa9de0 KB |
1025 | if (ptr != NULL) |
1026 | mfree (md, ptr); | |
1027 | val = NULL; | |
c906108c SS |
1028 | } |
1029 | else | |
1030 | { | |
d7fa9de0 KB |
1031 | if (ptr != NULL) |
1032 | { | |
1033 | val = mrealloc (md, ptr, size); | |
1034 | } | |
1035 | else | |
1036 | { | |
1037 | val = mmalloc (md, size); | |
1038 | } | |
1039 | if (val == NULL) | |
1040 | { | |
1041 | nomem (size); | |
1042 | } | |
c906108c SS |
1043 | } |
1044 | return (val); | |
1045 | } | |
1046 | ||
c0e61796 AC |
1047 | void * |
1048 | xmcalloc (void *md, size_t number, size_t size) | |
ed9a39eb | 1049 | { |
d7fa9de0 | 1050 | void *mem; |
d7fa9de0 KB |
1051 | if (number == 0 || size == 0) |
1052 | mem = NULL; | |
1053 | else | |
1054 | { | |
c0e61796 | 1055 | mem = mcalloc (md, number, size); |
d7fa9de0 KB |
1056 | if (mem == NULL) |
1057 | nomem (number * size); | |
1058 | } | |
ed9a39eb JM |
1059 | return mem; |
1060 | } | |
1061 | ||
c0e61796 AC |
1062 | void |
1063 | xmfree (void *md, void *ptr) | |
1064 | { | |
1065 | if (ptr != NULL) | |
1066 | mfree (md, ptr); | |
1067 | } | |
1068 | ||
1069 | /* The xmalloc() (libiberty.h) family of memory management routines. | |
1070 | ||
1071 | These are like the ISO-C malloc() family except that they implement | |
1072 | consistent semantics and guard against typical memory management | |
1073 | problems. See xmmalloc() above for further information. | |
1074 | ||
1075 | All these routines are wrappers to the xmmalloc() family. */ | |
1076 | ||
1077 | /* NOTE: These are declared using PTR to ensure consistency with | |
1078 | "libiberty.h". xfree() is GDB local. */ | |
1079 | ||
1080 | PTR | |
1081 | xmalloc (size_t size) | |
1082 | { | |
1083 | return xmmalloc (NULL, size); | |
1084 | } | |
c906108c SS |
1085 | |
1086 | PTR | |
fba45db2 | 1087 | xrealloc (PTR ptr, size_t size) |
c906108c | 1088 | { |
c0e61796 | 1089 | return xmrealloc (NULL, ptr, size); |
c906108c | 1090 | } |
b8c9b27d | 1091 | |
c0e61796 AC |
1092 | PTR |
1093 | xcalloc (size_t number, size_t size) | |
1094 | { | |
1095 | return xmcalloc (NULL, number, size); | |
1096 | } | |
b8c9b27d KB |
1097 | |
1098 | void | |
1099 | xfree (void *ptr) | |
1100 | { | |
c0e61796 | 1101 | xmfree (NULL, ptr); |
b8c9b27d | 1102 | } |
c906108c | 1103 | \f |
c5aa993b | 1104 | |
76995688 AC |
1105 | /* Like asprintf/vasprintf but get an internal_error if the call |
1106 | fails. */ | |
1107 | ||
1108 | void | |
1109 | xasprintf (char **ret, const char *format, ...) | |
1110 | { | |
1111 | va_list args; | |
1112 | va_start (args, format); | |
1113 | xvasprintf (ret, format, args); | |
1114 | va_end (args); | |
1115 | } | |
1116 | ||
1117 | void | |
1118 | xvasprintf (char **ret, const char *format, va_list ap) | |
1119 | { | |
1120 | int status = vasprintf (ret, format, ap); | |
1121 | /* NULL could be returned due to a memory allocation problem; a | |
1122 | badly format string; or something else. */ | |
1123 | if ((*ret) == NULL) | |
8e65ff28 AC |
1124 | internal_error (__FILE__, __LINE__, |
1125 | "vasprintf returned NULL buffer (errno %d)", | |
1126 | errno); | |
76995688 AC |
1127 | /* A negative status with a non-NULL buffer shouldn't never |
1128 | happen. But to be sure. */ | |
1129 | if (status < 0) | |
8e65ff28 AC |
1130 | internal_error (__FILE__, __LINE__, |
1131 | "vasprintf call failed (errno %d)", | |
1132 | errno); | |
76995688 AC |
1133 | } |
1134 | ||
1135 | ||
c906108c SS |
1136 | /* My replacement for the read system call. |
1137 | Used like `read' but keeps going if `read' returns too soon. */ | |
1138 | ||
1139 | int | |
fba45db2 | 1140 | myread (int desc, char *addr, int len) |
c906108c SS |
1141 | { |
1142 | register int val; | |
1143 | int orglen = len; | |
1144 | ||
1145 | while (len > 0) | |
1146 | { | |
1147 | val = read (desc, addr, len); | |
1148 | if (val < 0) | |
1149 | return val; | |
1150 | if (val == 0) | |
1151 | return orglen - len; | |
1152 | len -= val; | |
1153 | addr += val; | |
1154 | } | |
1155 | return orglen; | |
1156 | } | |
1157 | \f | |
1158 | /* Make a copy of the string at PTR with SIZE characters | |
1159 | (and add a null character at the end in the copy). | |
1160 | Uses malloc to get the space. Returns the address of the copy. */ | |
1161 | ||
1162 | char * | |
5565b556 | 1163 | savestring (const char *ptr, size_t size) |
c906108c SS |
1164 | { |
1165 | register char *p = (char *) xmalloc (size + 1); | |
1166 | memcpy (p, ptr, size); | |
1167 | p[size] = 0; | |
1168 | return p; | |
1169 | } | |
1170 | ||
1171 | char * | |
5565b556 | 1172 | msavestring (void *md, const char *ptr, size_t size) |
c906108c SS |
1173 | { |
1174 | register char *p = (char *) xmmalloc (md, size + 1); | |
1175 | memcpy (p, ptr, size); | |
1176 | p[size] = 0; | |
1177 | return p; | |
1178 | } | |
1179 | ||
c906108c | 1180 | char * |
082faf24 | 1181 | mstrsave (void *md, const char *ptr) |
c906108c SS |
1182 | { |
1183 | return (msavestring (md, ptr, strlen (ptr))); | |
1184 | } | |
1185 | ||
1186 | void | |
fba45db2 | 1187 | print_spaces (register int n, register struct ui_file *file) |
c906108c | 1188 | { |
392a587b | 1189 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1190 | } |
1191 | ||
1192 | /* Print a host address. */ | |
1193 | ||
1194 | void | |
d9fcf2fb | 1195 | gdb_print_host_address (void *addr, struct ui_file *stream) |
c906108c SS |
1196 | { |
1197 | ||
1198 | /* We could use the %p conversion specifier to fprintf if we had any | |
1199 | way of knowing whether this host supports it. But the following | |
1200 | should work on the Alpha and on 32 bit machines. */ | |
1201 | ||
c5aa993b | 1202 | fprintf_filtered (stream, "0x%lx", (unsigned long) addr); |
c906108c SS |
1203 | } |
1204 | ||
1205 | /* Ask user a y-or-n question and return 1 iff answer is yes. | |
1206 | Takes three args which are given to printf to print the question. | |
1207 | The first, a control string, should end in "? ". | |
1208 | It should not say how to answer, because we do that. */ | |
1209 | ||
1210 | /* VARARGS */ | |
1211 | int | |
6972bc8b | 1212 | query (const char *ctlstr,...) |
c906108c SS |
1213 | { |
1214 | va_list args; | |
1215 | register int answer; | |
1216 | register int ans2; | |
1217 | int retval; | |
1218 | ||
c906108c | 1219 | va_start (args, ctlstr); |
c906108c SS |
1220 | |
1221 | if (query_hook) | |
1222 | { | |
1223 | return query_hook (ctlstr, args); | |
1224 | } | |
1225 | ||
1226 | /* Automatically answer "yes" if input is not from a terminal. */ | |
1227 | if (!input_from_terminal_p ()) | |
1228 | return 1; | |
c906108c SS |
1229 | |
1230 | while (1) | |
1231 | { | |
1232 | wrap_here (""); /* Flush any buffered output */ | |
1233 | gdb_flush (gdb_stdout); | |
1234 | ||
1235 | if (annotation_level > 1) | |
1236 | printf_filtered ("\n\032\032pre-query\n"); | |
1237 | ||
1238 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1239 | printf_filtered ("(y or n) "); | |
1240 | ||
1241 | if (annotation_level > 1) | |
1242 | printf_filtered ("\n\032\032query\n"); | |
1243 | ||
c5aa993b | 1244 | wrap_here (""); |
c906108c SS |
1245 | gdb_flush (gdb_stdout); |
1246 | ||
37767e42 | 1247 | answer = fgetc (stdin); |
c906108c SS |
1248 | clearerr (stdin); /* in case of C-d */ |
1249 | if (answer == EOF) /* C-d */ | |
c5aa993b | 1250 | { |
c906108c SS |
1251 | retval = 1; |
1252 | break; | |
1253 | } | |
1254 | /* Eat rest of input line, to EOF or newline */ | |
37767e42 | 1255 | if (answer != '\n') |
c5aa993b | 1256 | do |
c906108c | 1257 | { |
37767e42 | 1258 | ans2 = fgetc (stdin); |
c906108c SS |
1259 | clearerr (stdin); |
1260 | } | |
c5aa993b | 1261 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); |
c906108c SS |
1262 | |
1263 | if (answer >= 'a') | |
1264 | answer -= 040; | |
1265 | if (answer == 'Y') | |
1266 | { | |
1267 | retval = 1; | |
1268 | break; | |
1269 | } | |
1270 | if (answer == 'N') | |
1271 | { | |
1272 | retval = 0; | |
1273 | break; | |
1274 | } | |
1275 | printf_filtered ("Please answer y or n.\n"); | |
1276 | } | |
1277 | ||
1278 | if (annotation_level > 1) | |
1279 | printf_filtered ("\n\032\032post-query\n"); | |
1280 | return retval; | |
1281 | } | |
c906108c | 1282 | \f |
c5aa993b | 1283 | |
c906108c SS |
1284 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1285 | containing a pointer to the string to parse. That pointer | |
1286 | should point to the character after the \. That pointer | |
1287 | is updated past the characters we use. The value of the | |
1288 | escape sequence is returned. | |
1289 | ||
1290 | A negative value means the sequence \ newline was seen, | |
1291 | which is supposed to be equivalent to nothing at all. | |
1292 | ||
1293 | If \ is followed by a null character, we return a negative | |
1294 | value and leave the string pointer pointing at the null character. | |
1295 | ||
1296 | If \ is followed by 000, we return 0 and leave the string pointer | |
1297 | after the zeros. A value of 0 does not mean end of string. */ | |
1298 | ||
1299 | int | |
fba45db2 | 1300 | parse_escape (char **string_ptr) |
c906108c SS |
1301 | { |
1302 | register int c = *(*string_ptr)++; | |
1303 | switch (c) | |
1304 | { | |
1305 | case 'a': | |
1306 | return 007; /* Bell (alert) char */ | |
1307 | case 'b': | |
1308 | return '\b'; | |
1309 | case 'e': /* Escape character */ | |
1310 | return 033; | |
1311 | case 'f': | |
1312 | return '\f'; | |
1313 | case 'n': | |
1314 | return '\n'; | |
1315 | case 'r': | |
1316 | return '\r'; | |
1317 | case 't': | |
1318 | return '\t'; | |
1319 | case 'v': | |
1320 | return '\v'; | |
1321 | case '\n': | |
1322 | return -2; | |
1323 | case 0: | |
1324 | (*string_ptr)--; | |
1325 | return 0; | |
1326 | case '^': | |
1327 | c = *(*string_ptr)++; | |
1328 | if (c == '\\') | |
1329 | c = parse_escape (string_ptr); | |
1330 | if (c == '?') | |
1331 | return 0177; | |
1332 | return (c & 0200) | (c & 037); | |
c5aa993b | 1333 | |
c906108c SS |
1334 | case '0': |
1335 | case '1': | |
1336 | case '2': | |
1337 | case '3': | |
1338 | case '4': | |
1339 | case '5': | |
1340 | case '6': | |
1341 | case '7': | |
1342 | { | |
1343 | register int i = c - '0'; | |
1344 | register int count = 0; | |
1345 | while (++count < 3) | |
1346 | { | |
1347 | if ((c = *(*string_ptr)++) >= '0' && c <= '7') | |
1348 | { | |
1349 | i *= 8; | |
1350 | i += c - '0'; | |
1351 | } | |
1352 | else | |
1353 | { | |
1354 | (*string_ptr)--; | |
1355 | break; | |
1356 | } | |
1357 | } | |
1358 | return i; | |
1359 | } | |
1360 | default: | |
1361 | return c; | |
1362 | } | |
1363 | } | |
1364 | \f | |
1365 | /* Print the character C on STREAM as part of the contents of a literal | |
1366 | string whose delimiter is QUOTER. Note that this routine should only | |
1367 | be call for printing things which are independent of the language | |
1368 | of the program being debugged. */ | |
1369 | ||
43e526b9 | 1370 | static void |
74f832da KB |
1371 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
1372 | void (*do_fprintf) (struct ui_file *, const char *, ...), | |
1373 | struct ui_file *stream, int quoter) | |
c906108c SS |
1374 | { |
1375 | ||
1376 | c &= 0xFF; /* Avoid sign bit follies */ | |
1377 | ||
c5aa993b JM |
1378 | if (c < 0x20 || /* Low control chars */ |
1379 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1380 | (sevenbit_strings && c >= 0x80)) | |
1381 | { /* high order bit set */ | |
1382 | switch (c) | |
1383 | { | |
1384 | case '\n': | |
43e526b9 | 1385 | do_fputs ("\\n", stream); |
c5aa993b JM |
1386 | break; |
1387 | case '\b': | |
43e526b9 | 1388 | do_fputs ("\\b", stream); |
c5aa993b JM |
1389 | break; |
1390 | case '\t': | |
43e526b9 | 1391 | do_fputs ("\\t", stream); |
c5aa993b JM |
1392 | break; |
1393 | case '\f': | |
43e526b9 | 1394 | do_fputs ("\\f", stream); |
c5aa993b JM |
1395 | break; |
1396 | case '\r': | |
43e526b9 | 1397 | do_fputs ("\\r", stream); |
c5aa993b JM |
1398 | break; |
1399 | case '\033': | |
43e526b9 | 1400 | do_fputs ("\\e", stream); |
c5aa993b JM |
1401 | break; |
1402 | case '\007': | |
43e526b9 | 1403 | do_fputs ("\\a", stream); |
c5aa993b JM |
1404 | break; |
1405 | default: | |
43e526b9 | 1406 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1407 | break; |
1408 | } | |
1409 | } | |
1410 | else | |
1411 | { | |
1412 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1413 | do_fputs ("\\", stream); |
1414 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1415 | } |
c906108c | 1416 | } |
43e526b9 JM |
1417 | |
1418 | /* Print the character C on STREAM as part of the contents of a | |
1419 | literal string whose delimiter is QUOTER. Note that these routines | |
1420 | should only be call for printing things which are independent of | |
1421 | the language of the program being debugged. */ | |
1422 | ||
1423 | void | |
fba45db2 | 1424 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1425 | { |
1426 | while (*str) | |
1427 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1428 | } | |
1429 | ||
1430 | void | |
fba45db2 | 1431 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1432 | { |
1433 | while (*str) | |
1434 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1435 | } | |
1436 | ||
1437 | void | |
fba45db2 | 1438 | fputstrn_unfiltered (const char *str, int n, int quoter, struct ui_file *stream) |
43e526b9 JM |
1439 | { |
1440 | int i; | |
1441 | for (i = 0; i < n; i++) | |
1442 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1443 | } | |
1444 | ||
c906108c | 1445 | \f |
c5aa993b | 1446 | |
c906108c SS |
1447 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1448 | static unsigned int lines_per_page; | |
cbfbd72a | 1449 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c SS |
1450 | static unsigned int chars_per_line; |
1451 | /* Current count of lines printed on this page, chars on this line. */ | |
1452 | static unsigned int lines_printed, chars_printed; | |
1453 | ||
1454 | /* Buffer and start column of buffered text, for doing smarter word- | |
1455 | wrapping. When someone calls wrap_here(), we start buffering output | |
1456 | that comes through fputs_filtered(). If we see a newline, we just | |
1457 | spit it out and forget about the wrap_here(). If we see another | |
1458 | wrap_here(), we spit it out and remember the newer one. If we see | |
1459 | the end of the line, we spit out a newline, the indent, and then | |
1460 | the buffered output. */ | |
1461 | ||
1462 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1463 | are waiting to be output (they have already been counted in chars_printed). | |
1464 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1465 | static char *wrap_buffer; | |
1466 | ||
1467 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1468 | static char *wrap_pointer; | |
1469 | ||
1470 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1471 | is non-zero. */ | |
1472 | static char *wrap_indent; | |
1473 | ||
1474 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1475 | is not in effect. */ | |
1476 | static int wrap_column; | |
c906108c | 1477 | \f |
c5aa993b | 1478 | |
c906108c SS |
1479 | /* Inialize the lines and chars per page */ |
1480 | void | |
fba45db2 | 1481 | init_page_info (void) |
c906108c SS |
1482 | { |
1483 | #if defined(TUI) | |
5ecb1806 | 1484 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1485 | #endif |
1486 | { | |
1487 | /* These defaults will be used if we are unable to get the correct | |
1488 | values from termcap. */ | |
1489 | #if defined(__GO32__) | |
c5aa993b JM |
1490 | lines_per_page = ScreenRows (); |
1491 | chars_per_line = ScreenCols (); | |
1492 | #else | |
c906108c SS |
1493 | lines_per_page = 24; |
1494 | chars_per_line = 80; | |
1495 | ||
d036b4d9 | 1496 | #if !defined (_WIN32) |
c906108c SS |
1497 | /* No termcap under MPW, although might be cool to do something |
1498 | by looking at worksheet or console window sizes. */ | |
1499 | /* Initialize the screen height and width from termcap. */ | |
1500 | { | |
c5aa993b | 1501 | char *termtype = getenv ("TERM"); |
c906108c | 1502 | |
c5aa993b JM |
1503 | /* Positive means success, nonpositive means failure. */ |
1504 | int status; | |
c906108c | 1505 | |
c5aa993b JM |
1506 | /* 2048 is large enough for all known terminals, according to the |
1507 | GNU termcap manual. */ | |
1508 | char term_buffer[2048]; | |
c906108c | 1509 | |
c5aa993b JM |
1510 | if (termtype) |
1511 | { | |
c906108c SS |
1512 | status = tgetent (term_buffer, termtype); |
1513 | if (status > 0) | |
1514 | { | |
c5aa993b | 1515 | int val; |
c906108c | 1516 | int running_in_emacs = getenv ("EMACS") != NULL; |
c5aa993b JM |
1517 | |
1518 | val = tgetnum ("li"); | |
1519 | if (val >= 0 && !running_in_emacs) | |
1520 | lines_per_page = val; | |
1521 | else | |
1522 | /* The number of lines per page is not mentioned | |
c906108c SS |
1523 | in the terminal description. This probably means |
1524 | that paging is not useful (e.g. emacs shell window), | |
1525 | so disable paging. */ | |
c5aa993b JM |
1526 | lines_per_page = UINT_MAX; |
1527 | ||
1528 | val = tgetnum ("co"); | |
1529 | if (val >= 0) | |
1530 | chars_per_line = val; | |
c906108c | 1531 | } |
c5aa993b | 1532 | } |
c906108c SS |
1533 | } |
1534 | #endif /* MPW */ | |
1535 | ||
1536 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) | |
1537 | ||
1538 | /* If there is a better way to determine the window size, use it. */ | |
1539 | SIGWINCH_HANDLER (SIGWINCH); | |
1540 | #endif | |
1541 | #endif | |
1542 | /* If the output is not a terminal, don't paginate it. */ | |
d9fcf2fb | 1543 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b JM |
1544 | lines_per_page = UINT_MAX; |
1545 | } /* the command_line_version */ | |
1546 | set_width (); | |
c906108c SS |
1547 | } |
1548 | ||
1549 | static void | |
fba45db2 | 1550 | set_width (void) |
c906108c SS |
1551 | { |
1552 | if (chars_per_line == 0) | |
c5aa993b | 1553 | init_page_info (); |
c906108c SS |
1554 | |
1555 | if (!wrap_buffer) | |
1556 | { | |
1557 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1558 | wrap_buffer[0] = '\0'; | |
1559 | } | |
1560 | else | |
1561 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
c5aa993b | 1562 | wrap_pointer = wrap_buffer; /* Start it at the beginning */ |
c906108c SS |
1563 | } |
1564 | ||
1565 | /* ARGSUSED */ | |
c5aa993b | 1566 | static void |
fba45db2 | 1567 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c SS |
1568 | { |
1569 | set_width (); | |
1570 | } | |
1571 | ||
1572 | /* Wait, so the user can read what's on the screen. Prompt the user | |
1573 | to continue by pressing RETURN. */ | |
1574 | ||
1575 | static void | |
fba45db2 | 1576 | prompt_for_continue (void) |
c906108c SS |
1577 | { |
1578 | char *ignore; | |
1579 | char cont_prompt[120]; | |
1580 | ||
1581 | if (annotation_level > 1) | |
1582 | printf_unfiltered ("\n\032\032pre-prompt-for-continue\n"); | |
1583 | ||
1584 | strcpy (cont_prompt, | |
1585 | "---Type <return> to continue, or q <return> to quit---"); | |
1586 | if (annotation_level > 1) | |
1587 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1588 | ||
1589 | /* We must do this *before* we call gdb_readline, else it will eventually | |
1590 | call us -- thinking that we're trying to print beyond the end of the | |
1591 | screen. */ | |
1592 | reinitialize_more_filter (); | |
1593 | ||
1594 | immediate_quit++; | |
1595 | /* On a real operating system, the user can quit with SIGINT. | |
1596 | But not on GO32. | |
1597 | ||
1598 | 'q' is provided on all systems so users don't have to change habits | |
1599 | from system to system, and because telling them what to do in | |
1600 | the prompt is more user-friendly than expecting them to think of | |
1601 | SIGINT. */ | |
1602 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
1603 | whereas control-C to gdb_readline will cause the user to get dumped | |
1604 | out to DOS. */ | |
1605 | ignore = readline (cont_prompt); | |
1606 | ||
1607 | if (annotation_level > 1) | |
1608 | printf_unfiltered ("\n\032\032post-prompt-for-continue\n"); | |
1609 | ||
1610 | if (ignore) | |
1611 | { | |
1612 | char *p = ignore; | |
1613 | while (*p == ' ' || *p == '\t') | |
1614 | ++p; | |
1615 | if (p[0] == 'q') | |
0f71a2f6 | 1616 | { |
6426a772 | 1617 | if (!event_loop_p) |
0f71a2f6 JM |
1618 | request_quit (SIGINT); |
1619 | else | |
c5aa993b | 1620 | async_request_quit (0); |
0f71a2f6 | 1621 | } |
b8c9b27d | 1622 | xfree (ignore); |
c906108c SS |
1623 | } |
1624 | immediate_quit--; | |
1625 | ||
1626 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1627 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1628 | reinitialize_more_filter (); | |
1629 | ||
1630 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ | |
1631 | } | |
1632 | ||
1633 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
1634 | ||
1635 | void | |
fba45db2 | 1636 | reinitialize_more_filter (void) |
c906108c SS |
1637 | { |
1638 | lines_printed = 0; | |
1639 | chars_printed = 0; | |
1640 | } | |
1641 | ||
1642 | /* Indicate that if the next sequence of characters overflows the line, | |
1643 | a newline should be inserted here rather than when it hits the end. | |
1644 | If INDENT is non-null, it is a string to be printed to indent the | |
1645 | wrapped part on the next line. INDENT must remain accessible until | |
1646 | the next call to wrap_here() or until a newline is printed through | |
1647 | fputs_filtered(). | |
1648 | ||
1649 | If the line is already overfull, we immediately print a newline and | |
1650 | the indentation, and disable further wrapping. | |
1651 | ||
1652 | If we don't know the width of lines, but we know the page height, | |
1653 | we must not wrap words, but should still keep track of newlines | |
1654 | that were explicitly printed. | |
1655 | ||
1656 | INDENT should not contain tabs, as that will mess up the char count | |
1657 | on the next line. FIXME. | |
1658 | ||
1659 | This routine is guaranteed to force out any output which has been | |
1660 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1661 | used to force out output from the wrap_buffer. */ | |
1662 | ||
1663 | void | |
fba45db2 | 1664 | wrap_here (char *indent) |
c906108c SS |
1665 | { |
1666 | /* This should have been allocated, but be paranoid anyway. */ | |
1667 | if (!wrap_buffer) | |
e1e9e218 | 1668 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
1669 | |
1670 | if (wrap_buffer[0]) | |
1671 | { | |
1672 | *wrap_pointer = '\0'; | |
1673 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1674 | } | |
1675 | wrap_pointer = wrap_buffer; | |
1676 | wrap_buffer[0] = '\0'; | |
c5aa993b | 1677 | if (chars_per_line == UINT_MAX) /* No line overflow checking */ |
c906108c SS |
1678 | { |
1679 | wrap_column = 0; | |
1680 | } | |
1681 | else if (chars_printed >= chars_per_line) | |
1682 | { | |
1683 | puts_filtered ("\n"); | |
1684 | if (indent != NULL) | |
1685 | puts_filtered (indent); | |
1686 | wrap_column = 0; | |
1687 | } | |
1688 | else | |
1689 | { | |
1690 | wrap_column = chars_printed; | |
1691 | if (indent == NULL) | |
1692 | wrap_indent = ""; | |
1693 | else | |
1694 | wrap_indent = indent; | |
1695 | } | |
1696 | } | |
1697 | ||
1698 | /* Ensure that whatever gets printed next, using the filtered output | |
1699 | commands, starts at the beginning of the line. I.E. if there is | |
1700 | any pending output for the current line, flush it and start a new | |
1701 | line. Otherwise do nothing. */ | |
1702 | ||
1703 | void | |
fba45db2 | 1704 | begin_line (void) |
c906108c SS |
1705 | { |
1706 | if (chars_printed > 0) | |
1707 | { | |
1708 | puts_filtered ("\n"); | |
1709 | } | |
1710 | } | |
1711 | ||
ac9a91a7 | 1712 | |
c906108c SS |
1713 | /* Like fputs but if FILTER is true, pause after every screenful. |
1714 | ||
1715 | Regardless of FILTER can wrap at points other than the final | |
1716 | character of a line. | |
1717 | ||
1718 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
1719 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
1720 | anything. | |
1721 | ||
1722 | Note that a longjmp to top level may occur in this routine (only if | |
1723 | FILTER is true) (since prompt_for_continue may do so) so this | |
1724 | routine should not be called when cleanups are not in place. */ | |
1725 | ||
1726 | static void | |
fba45db2 KB |
1727 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
1728 | int filter) | |
c906108c SS |
1729 | { |
1730 | const char *lineptr; | |
1731 | ||
1732 | if (linebuffer == 0) | |
1733 | return; | |
1734 | ||
1735 | /* Don't do any filtering if it is disabled. */ | |
7a292a7a | 1736 | if ((stream != gdb_stdout) || !pagination_enabled |
c5aa993b | 1737 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX)) |
c906108c SS |
1738 | { |
1739 | fputs_unfiltered (linebuffer, stream); | |
1740 | return; | |
1741 | } | |
1742 | ||
1743 | /* Go through and output each character. Show line extension | |
1744 | when this is necessary; prompt user for new page when this is | |
1745 | necessary. */ | |
c5aa993b | 1746 | |
c906108c SS |
1747 | lineptr = linebuffer; |
1748 | while (*lineptr) | |
1749 | { | |
1750 | /* Possible new page. */ | |
1751 | if (filter && | |
1752 | (lines_printed >= lines_per_page - 1)) | |
1753 | prompt_for_continue (); | |
1754 | ||
1755 | while (*lineptr && *lineptr != '\n') | |
1756 | { | |
1757 | /* Print a single line. */ | |
1758 | if (*lineptr == '\t') | |
1759 | { | |
1760 | if (wrap_column) | |
1761 | *wrap_pointer++ = '\t'; | |
1762 | else | |
1763 | fputc_unfiltered ('\t', stream); | |
1764 | /* Shifting right by 3 produces the number of tab stops | |
1765 | we have already passed, and then adding one and | |
c5aa993b | 1766 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
1767 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
1768 | lineptr++; | |
1769 | } | |
1770 | else | |
1771 | { | |
1772 | if (wrap_column) | |
1773 | *wrap_pointer++ = *lineptr; | |
1774 | else | |
c5aa993b | 1775 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
1776 | chars_printed++; |
1777 | lineptr++; | |
1778 | } | |
c5aa993b | 1779 | |
c906108c SS |
1780 | if (chars_printed >= chars_per_line) |
1781 | { | |
1782 | unsigned int save_chars = chars_printed; | |
1783 | ||
1784 | chars_printed = 0; | |
1785 | lines_printed++; | |
1786 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
1787 | if chars_per_line is right, we probably just overflowed |
1788 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
1789 | if (wrap_column) |
1790 | fputc_unfiltered ('\n', stream); | |
1791 | ||
1792 | /* Possible new page. */ | |
1793 | if (lines_printed >= lines_per_page - 1) | |
1794 | prompt_for_continue (); | |
1795 | ||
1796 | /* Now output indentation and wrapped string */ | |
1797 | if (wrap_column) | |
1798 | { | |
1799 | fputs_unfiltered (wrap_indent, stream); | |
c5aa993b JM |
1800 | *wrap_pointer = '\0'; /* Null-terminate saved stuff */ |
1801 | fputs_unfiltered (wrap_buffer, stream); /* and eject it */ | |
c906108c SS |
1802 | /* FIXME, this strlen is what prevents wrap_indent from |
1803 | containing tabs. However, if we recurse to print it | |
1804 | and count its chars, we risk trouble if wrap_indent is | |
1805 | longer than (the user settable) chars_per_line. | |
1806 | Note also that this can set chars_printed > chars_per_line | |
1807 | if we are printing a long string. */ | |
1808 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 1809 | + (save_chars - wrap_column); |
c906108c SS |
1810 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
1811 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
1812 | wrap_column = 0; /* And disable fancy wrap */ |
1813 | } | |
c906108c SS |
1814 | } |
1815 | } | |
1816 | ||
1817 | if (*lineptr == '\n') | |
1818 | { | |
1819 | chars_printed = 0; | |
c5aa993b | 1820 | wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */ |
c906108c SS |
1821 | lines_printed++; |
1822 | fputc_unfiltered ('\n', stream); | |
1823 | lineptr++; | |
1824 | } | |
1825 | } | |
1826 | } | |
1827 | ||
1828 | void | |
fba45db2 | 1829 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
1830 | { |
1831 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1832 | } | |
1833 | ||
1834 | int | |
fba45db2 | 1835 | putchar_unfiltered (int c) |
c906108c | 1836 | { |
11cf8741 | 1837 | char buf = c; |
d9fcf2fb | 1838 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
1839 | return c; |
1840 | } | |
1841 | ||
d1f4cff8 AC |
1842 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
1843 | May return nonlocally. */ | |
1844 | ||
1845 | int | |
1846 | putchar_filtered (int c) | |
1847 | { | |
1848 | return fputc_filtered (c, gdb_stdout); | |
1849 | } | |
1850 | ||
c906108c | 1851 | int |
fba45db2 | 1852 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 1853 | { |
11cf8741 | 1854 | char buf = c; |
d9fcf2fb | 1855 | ui_file_write (stream, &buf, 1); |
c906108c SS |
1856 | return c; |
1857 | } | |
1858 | ||
1859 | int | |
fba45db2 | 1860 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
1861 | { |
1862 | char buf[2]; | |
1863 | ||
1864 | buf[0] = c; | |
1865 | buf[1] = 0; | |
1866 | fputs_filtered (buf, stream); | |
1867 | return c; | |
1868 | } | |
1869 | ||
1870 | /* puts_debug is like fputs_unfiltered, except it prints special | |
1871 | characters in printable fashion. */ | |
1872 | ||
1873 | void | |
fba45db2 | 1874 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
1875 | { |
1876 | int ch; | |
1877 | ||
1878 | /* Print prefix and suffix after each line. */ | |
1879 | static int new_line = 1; | |
1880 | static int return_p = 0; | |
1881 | static char *prev_prefix = ""; | |
1882 | static char *prev_suffix = ""; | |
1883 | ||
1884 | if (*string == '\n') | |
1885 | return_p = 0; | |
1886 | ||
1887 | /* If the prefix is changing, print the previous suffix, a new line, | |
1888 | and the new prefix. */ | |
c5aa993b | 1889 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 1890 | { |
9846de1b JM |
1891 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
1892 | fputs_unfiltered ("\n", gdb_stdlog); | |
1893 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
1894 | } |
1895 | ||
1896 | /* Print prefix if we printed a newline during the previous call. */ | |
1897 | if (new_line) | |
1898 | { | |
1899 | new_line = 0; | |
9846de1b | 1900 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
1901 | } |
1902 | ||
1903 | prev_prefix = prefix; | |
1904 | prev_suffix = suffix; | |
1905 | ||
1906 | /* Output characters in a printable format. */ | |
1907 | while ((ch = *string++) != '\0') | |
1908 | { | |
1909 | switch (ch) | |
c5aa993b | 1910 | { |
c906108c SS |
1911 | default: |
1912 | if (isprint (ch)) | |
9846de1b | 1913 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
1914 | |
1915 | else | |
9846de1b | 1916 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
1917 | break; |
1918 | ||
c5aa993b JM |
1919 | case '\\': |
1920 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
1921 | break; | |
1922 | case '\b': | |
1923 | fputs_unfiltered ("\\b", gdb_stdlog); | |
1924 | break; | |
1925 | case '\f': | |
1926 | fputs_unfiltered ("\\f", gdb_stdlog); | |
1927 | break; | |
1928 | case '\n': | |
1929 | new_line = 1; | |
1930 | fputs_unfiltered ("\\n", gdb_stdlog); | |
1931 | break; | |
1932 | case '\r': | |
1933 | fputs_unfiltered ("\\r", gdb_stdlog); | |
1934 | break; | |
1935 | case '\t': | |
1936 | fputs_unfiltered ("\\t", gdb_stdlog); | |
1937 | break; | |
1938 | case '\v': | |
1939 | fputs_unfiltered ("\\v", gdb_stdlog); | |
1940 | break; | |
1941 | } | |
c906108c SS |
1942 | |
1943 | return_p = ch == '\r'; | |
1944 | } | |
1945 | ||
1946 | /* Print suffix if we printed a newline. */ | |
1947 | if (new_line) | |
1948 | { | |
9846de1b JM |
1949 | fputs_unfiltered (suffix, gdb_stdlog); |
1950 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
1951 | } |
1952 | } | |
1953 | ||
1954 | ||
1955 | /* Print a variable number of ARGS using format FORMAT. If this | |
1956 | information is going to put the amount written (since the last call | |
1957 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
1958 | call prompt_for_continue to get the users permision to continue. | |
1959 | ||
1960 | Unlike fprintf, this function does not return a value. | |
1961 | ||
1962 | We implement three variants, vfprintf (takes a vararg list and stream), | |
1963 | fprintf (takes a stream to write on), and printf (the usual). | |
1964 | ||
1965 | Note also that a longjmp to top level may occur in this routine | |
1966 | (since prompt_for_continue may do so) so this routine should not be | |
1967 | called when cleanups are not in place. */ | |
1968 | ||
1969 | static void | |
fba45db2 KB |
1970 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
1971 | va_list args, int filter) | |
c906108c SS |
1972 | { |
1973 | char *linebuffer; | |
1974 | struct cleanup *old_cleanups; | |
1975 | ||
76995688 | 1976 | xvasprintf (&linebuffer, format, args); |
b8c9b27d | 1977 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
1978 | fputs_maybe_filtered (linebuffer, stream, filter); |
1979 | do_cleanups (old_cleanups); | |
1980 | } | |
1981 | ||
1982 | ||
1983 | void | |
fba45db2 | 1984 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
1985 | { |
1986 | vfprintf_maybe_filtered (stream, format, args, 1); | |
1987 | } | |
1988 | ||
1989 | void | |
fba45db2 | 1990 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
1991 | { |
1992 | char *linebuffer; | |
1993 | struct cleanup *old_cleanups; | |
1994 | ||
76995688 | 1995 | xvasprintf (&linebuffer, format, args); |
b8c9b27d | 1996 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
1997 | fputs_unfiltered (linebuffer, stream); |
1998 | do_cleanups (old_cleanups); | |
1999 | } | |
2000 | ||
2001 | void | |
fba45db2 | 2002 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2003 | { |
2004 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2005 | } | |
2006 | ||
2007 | void | |
fba45db2 | 2008 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2009 | { |
2010 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2011 | } | |
2012 | ||
c906108c | 2013 | void |
d9fcf2fb | 2014 | fprintf_filtered (struct ui_file * stream, const char *format,...) |
c906108c SS |
2015 | { |
2016 | va_list args; | |
c906108c | 2017 | va_start (args, format); |
c906108c SS |
2018 | vfprintf_filtered (stream, format, args); |
2019 | va_end (args); | |
2020 | } | |
2021 | ||
c906108c | 2022 | void |
d9fcf2fb | 2023 | fprintf_unfiltered (struct ui_file * stream, const char *format,...) |
c906108c SS |
2024 | { |
2025 | va_list args; | |
c906108c | 2026 | va_start (args, format); |
c906108c SS |
2027 | vfprintf_unfiltered (stream, format, args); |
2028 | va_end (args); | |
2029 | } | |
2030 | ||
2031 | /* Like fprintf_filtered, but prints its result indented. | |
2032 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2033 | ||
c906108c | 2034 | void |
d9fcf2fb | 2035 | fprintfi_filtered (int spaces, struct ui_file * stream, const char *format,...) |
c906108c SS |
2036 | { |
2037 | va_list args; | |
c906108c | 2038 | va_start (args, format); |
c906108c SS |
2039 | print_spaces_filtered (spaces, stream); |
2040 | ||
2041 | vfprintf_filtered (stream, format, args); | |
2042 | va_end (args); | |
2043 | } | |
2044 | ||
2045 | ||
c906108c | 2046 | void |
c5aa993b | 2047 | printf_filtered (const char *format,...) |
c906108c SS |
2048 | { |
2049 | va_list args; | |
c906108c | 2050 | va_start (args, format); |
c906108c SS |
2051 | vfprintf_filtered (gdb_stdout, format, args); |
2052 | va_end (args); | |
2053 | } | |
2054 | ||
2055 | ||
c906108c | 2056 | void |
c5aa993b | 2057 | printf_unfiltered (const char *format,...) |
c906108c SS |
2058 | { |
2059 | va_list args; | |
c906108c | 2060 | va_start (args, format); |
c906108c SS |
2061 | vfprintf_unfiltered (gdb_stdout, format, args); |
2062 | va_end (args); | |
2063 | } | |
2064 | ||
2065 | /* Like printf_filtered, but prints it's result indented. | |
2066 | Called as printfi_filtered (spaces, format, ...); */ | |
2067 | ||
c906108c | 2068 | void |
c5aa993b | 2069 | printfi_filtered (int spaces, const char *format,...) |
c906108c SS |
2070 | { |
2071 | va_list args; | |
c906108c | 2072 | va_start (args, format); |
c906108c SS |
2073 | print_spaces_filtered (spaces, gdb_stdout); |
2074 | vfprintf_filtered (gdb_stdout, format, args); | |
2075 | va_end (args); | |
2076 | } | |
2077 | ||
2078 | /* Easy -- but watch out! | |
2079 | ||
2080 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2081 | This one doesn't, and had better not! */ | |
2082 | ||
2083 | void | |
fba45db2 | 2084 | puts_filtered (const char *string) |
c906108c SS |
2085 | { |
2086 | fputs_filtered (string, gdb_stdout); | |
2087 | } | |
2088 | ||
2089 | void | |
fba45db2 | 2090 | puts_unfiltered (const char *string) |
c906108c SS |
2091 | { |
2092 | fputs_unfiltered (string, gdb_stdout); | |
2093 | } | |
2094 | ||
2095 | /* Return a pointer to N spaces and a null. The pointer is good | |
2096 | until the next call to here. */ | |
2097 | char * | |
fba45db2 | 2098 | n_spaces (int n) |
c906108c | 2099 | { |
392a587b JM |
2100 | char *t; |
2101 | static char *spaces = 0; | |
2102 | static int max_spaces = -1; | |
c906108c SS |
2103 | |
2104 | if (n > max_spaces) | |
2105 | { | |
2106 | if (spaces) | |
b8c9b27d | 2107 | xfree (spaces); |
c5aa993b JM |
2108 | spaces = (char *) xmalloc (n + 1); |
2109 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2110 | *--t = ' '; |
2111 | spaces[n] = '\0'; | |
2112 | max_spaces = n; | |
2113 | } | |
2114 | ||
2115 | return spaces + max_spaces - n; | |
2116 | } | |
2117 | ||
2118 | /* Print N spaces. */ | |
2119 | void | |
fba45db2 | 2120 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2121 | { |
2122 | fputs_filtered (n_spaces (n), stream); | |
2123 | } | |
2124 | \f | |
2125 | /* C++ demangler stuff. */ | |
2126 | ||
2127 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language | |
2128 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2129 | If the name is not mangled, or the language for the name is unknown, or | |
2130 | demangling is off, the name is printed in its "raw" form. */ | |
2131 | ||
2132 | void | |
fba45db2 KB |
2133 | fprintf_symbol_filtered (struct ui_file *stream, char *name, enum language lang, |
2134 | int arg_mode) | |
c906108c SS |
2135 | { |
2136 | char *demangled; | |
2137 | ||
2138 | if (name != NULL) | |
2139 | { | |
2140 | /* If user wants to see raw output, no problem. */ | |
2141 | if (!demangle) | |
2142 | { | |
2143 | fputs_filtered (name, stream); | |
2144 | } | |
2145 | else | |
2146 | { | |
2147 | switch (lang) | |
2148 | { | |
2149 | case language_cplus: | |
2150 | demangled = cplus_demangle (name, arg_mode); | |
2151 | break; | |
2152 | case language_java: | |
2153 | demangled = cplus_demangle (name, arg_mode | DMGL_JAVA); | |
2154 | break; | |
2155 | case language_chill: | |
2156 | demangled = chill_demangle (name); | |
2157 | break; | |
2158 | default: | |
2159 | demangled = NULL; | |
2160 | break; | |
2161 | } | |
2162 | fputs_filtered (demangled ? demangled : name, stream); | |
2163 | if (demangled != NULL) | |
2164 | { | |
b8c9b27d | 2165 | xfree (demangled); |
c906108c SS |
2166 | } |
2167 | } | |
2168 | } | |
2169 | } | |
2170 | ||
2171 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2172 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2173 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2174 | |
c906108c SS |
2175 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2176 | This "feature" is useful when searching for matching C++ function names | |
2177 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
2178 | function). */ | |
2179 | ||
2180 | int | |
fba45db2 | 2181 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2182 | { |
2183 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2184 | { | |
2185 | while (isspace (*string1)) | |
2186 | { | |
2187 | string1++; | |
2188 | } | |
2189 | while (isspace (*string2)) | |
2190 | { | |
2191 | string2++; | |
2192 | } | |
2193 | if (*string1 != *string2) | |
2194 | { | |
2195 | break; | |
2196 | } | |
2197 | if (*string1 != '\0') | |
2198 | { | |
2199 | string1++; | |
2200 | string2++; | |
2201 | } | |
2202 | } | |
2203 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2204 | } | |
c906108c | 2205 | \f |
c5aa993b | 2206 | |
c906108c | 2207 | /* |
c5aa993b JM |
2208 | ** subset_compare() |
2209 | ** Answer whether string_to_compare is a full or partial match to | |
2210 | ** template_string. The partial match must be in sequence starting | |
2211 | ** at index 0. | |
2212 | */ | |
c906108c | 2213 | int |
fba45db2 | 2214 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
2215 | { |
2216 | int match; | |
c5aa993b JM |
2217 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL && |
2218 | strlen (string_to_compare) <= strlen (template_string)) | |
2219 | match = (strncmp (template_string, | |
2220 | string_to_compare, | |
2221 | strlen (string_to_compare)) == 0); | |
7a292a7a SS |
2222 | else |
2223 | match = 0; | |
2224 | return match; | |
2225 | } | |
c906108c SS |
2226 | |
2227 | ||
a14ed312 | 2228 | static void pagination_on_command (char *arg, int from_tty); |
7a292a7a | 2229 | static void |
fba45db2 | 2230 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
2231 | { |
2232 | pagination_enabled = 1; | |
2233 | } | |
2234 | ||
a14ed312 | 2235 | static void pagination_on_command (char *arg, int from_tty); |
7a292a7a | 2236 | static void |
fba45db2 | 2237 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
2238 | { |
2239 | pagination_enabled = 0; | |
2240 | } | |
c906108c | 2241 | \f |
c5aa993b | 2242 | |
c906108c | 2243 | void |
fba45db2 | 2244 | initialize_utils (void) |
c906108c SS |
2245 | { |
2246 | struct cmd_list_element *c; | |
2247 | ||
c5aa993b JM |
2248 | c = add_set_cmd ("width", class_support, var_uinteger, |
2249 | (char *) &chars_per_line, | |
2250 | "Set number of characters gdb thinks are in a line.", | |
2251 | &setlist); | |
c906108c | 2252 | add_show_from_set (c, &showlist); |
9f60d481 | 2253 | set_cmd_sfunc (c, set_width_command); |
c906108c SS |
2254 | |
2255 | add_show_from_set | |
2256 | (add_set_cmd ("height", class_support, | |
c5aa993b | 2257 | var_uinteger, (char *) &lines_per_page, |
c906108c SS |
2258 | "Set number of lines gdb thinks are in a page.", &setlist), |
2259 | &showlist); | |
c5aa993b | 2260 | |
c906108c SS |
2261 | init_page_info (); |
2262 | ||
2263 | /* If the output is not a terminal, don't paginate it. */ | |
d9fcf2fb | 2264 | if (!ui_file_isatty (gdb_stdout)) |
c906108c SS |
2265 | lines_per_page = UINT_MAX; |
2266 | ||
c5aa993b | 2267 | set_width_command ((char *) NULL, 0, c); |
c906108c SS |
2268 | |
2269 | add_show_from_set | |
c5aa993b JM |
2270 | (add_set_cmd ("demangle", class_support, var_boolean, |
2271 | (char *) &demangle, | |
2272 | "Set demangling of encoded C++ names when displaying symbols.", | |
c906108c SS |
2273 | &setprintlist), |
2274 | &showprintlist); | |
2275 | ||
2276 | add_show_from_set | |
2277 | (add_set_cmd ("pagination", class_support, | |
c5aa993b | 2278 | var_boolean, (char *) &pagination_enabled, |
c906108c SS |
2279 | "Set state of pagination.", &setlist), |
2280 | &showlist); | |
4261bedc | 2281 | |
c906108c SS |
2282 | if (xdb_commands) |
2283 | { | |
c5aa993b JM |
2284 | add_com ("am", class_support, pagination_on_command, |
2285 | "Enable pagination"); | |
2286 | add_com ("sm", class_support, pagination_off_command, | |
2287 | "Disable pagination"); | |
c906108c SS |
2288 | } |
2289 | ||
2290 | add_show_from_set | |
c5aa993b JM |
2291 | (add_set_cmd ("sevenbit-strings", class_support, var_boolean, |
2292 | (char *) &sevenbit_strings, | |
2293 | "Set printing of 8-bit characters in strings as \\nnn.", | |
c906108c SS |
2294 | &setprintlist), |
2295 | &showprintlist); | |
2296 | ||
2297 | add_show_from_set | |
c5aa993b JM |
2298 | (add_set_cmd ("asm-demangle", class_support, var_boolean, |
2299 | (char *) &asm_demangle, | |
2300 | "Set demangling of C++ names in disassembly listings.", | |
c906108c SS |
2301 | &setprintlist), |
2302 | &showprintlist); | |
2303 | } | |
2304 | ||
2305 | /* Machine specific function to handle SIGWINCH signal. */ | |
2306 | ||
2307 | #ifdef SIGWINCH_HANDLER_BODY | |
c5aa993b | 2308 | SIGWINCH_HANDLER_BODY |
c906108c | 2309 | #endif |
39424bef | 2310 | |
5683e87a AC |
2311 | /* print routines to handle variable size regs, etc. */ |
2312 | ||
c906108c SS |
2313 | /* temporary storage using circular buffer */ |
2314 | #define NUMCELLS 16 | |
2315 | #define CELLSIZE 32 | |
c5aa993b | 2316 | static char * |
fba45db2 | 2317 | get_cell (void) |
c906108c SS |
2318 | { |
2319 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b JM |
2320 | static int cell = 0; |
2321 | if (++cell >= NUMCELLS) | |
2322 | cell = 0; | |
c906108c SS |
2323 | return buf[cell]; |
2324 | } | |
2325 | ||
d4f3574e SS |
2326 | int |
2327 | strlen_paddr (void) | |
2328 | { | |
79496e2f | 2329 | return (TARGET_ADDR_BIT / 8 * 2); |
d4f3574e SS |
2330 | } |
2331 | ||
c5aa993b | 2332 | char * |
104c1213 | 2333 | paddr (CORE_ADDR addr) |
c906108c | 2334 | { |
79496e2f | 2335 | return phex (addr, TARGET_ADDR_BIT / 8); |
c906108c SS |
2336 | } |
2337 | ||
c5aa993b | 2338 | char * |
104c1213 | 2339 | paddr_nz (CORE_ADDR addr) |
c906108c | 2340 | { |
79496e2f | 2341 | return phex_nz (addr, TARGET_ADDR_BIT / 8); |
c906108c SS |
2342 | } |
2343 | ||
104c1213 JM |
2344 | static void |
2345 | decimal2str (char *paddr_str, char *sign, ULONGEST addr) | |
2346 | { | |
2347 | /* steal code from valprint.c:print_decimal(). Should this worry | |
2348 | about the real size of addr as the above does? */ | |
2349 | unsigned long temp[3]; | |
2350 | int i = 0; | |
2351 | do | |
2352 | { | |
2353 | temp[i] = addr % (1000 * 1000 * 1000); | |
2354 | addr /= (1000 * 1000 * 1000); | |
2355 | i++; | |
2356 | } | |
2357 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
2358 | switch (i) | |
2359 | { | |
2360 | case 1: | |
2361 | sprintf (paddr_str, "%s%lu", | |
2362 | sign, temp[0]); | |
2363 | break; | |
2364 | case 2: | |
2365 | sprintf (paddr_str, "%s%lu%09lu", | |
2366 | sign, temp[1], temp[0]); | |
2367 | break; | |
2368 | case 3: | |
2369 | sprintf (paddr_str, "%s%lu%09lu%09lu", | |
2370 | sign, temp[2], temp[1], temp[0]); | |
2371 | break; | |
2372 | default: | |
e1e9e218 | 2373 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
104c1213 JM |
2374 | } |
2375 | } | |
2376 | ||
2377 | char * | |
2378 | paddr_u (CORE_ADDR addr) | |
2379 | { | |
2380 | char *paddr_str = get_cell (); | |
2381 | decimal2str (paddr_str, "", addr); | |
2382 | return paddr_str; | |
2383 | } | |
2384 | ||
2385 | char * | |
2386 | paddr_d (LONGEST addr) | |
2387 | { | |
2388 | char *paddr_str = get_cell (); | |
2389 | if (addr < 0) | |
2390 | decimal2str (paddr_str, "-", -addr); | |
2391 | else | |
2392 | decimal2str (paddr_str, "", addr); | |
2393 | return paddr_str; | |
2394 | } | |
2395 | ||
5683e87a AC |
2396 | /* eliminate warning from compiler on 32-bit systems */ |
2397 | static int thirty_two = 32; | |
2398 | ||
104c1213 | 2399 | char * |
5683e87a | 2400 | phex (ULONGEST l, int sizeof_l) |
104c1213 | 2401 | { |
45a1e866 | 2402 | char *str; |
5683e87a | 2403 | switch (sizeof_l) |
104c1213 JM |
2404 | { |
2405 | case 8: | |
45a1e866 | 2406 | str = get_cell (); |
5683e87a AC |
2407 | sprintf (str, "%08lx%08lx", |
2408 | (unsigned long) (l >> thirty_two), | |
2409 | (unsigned long) (l & 0xffffffff)); | |
104c1213 JM |
2410 | break; |
2411 | case 4: | |
45a1e866 | 2412 | str = get_cell (); |
5683e87a | 2413 | sprintf (str, "%08lx", (unsigned long) l); |
104c1213 JM |
2414 | break; |
2415 | case 2: | |
45a1e866 | 2416 | str = get_cell (); |
5683e87a | 2417 | sprintf (str, "%04x", (unsigned short) (l & 0xffff)); |
104c1213 JM |
2418 | break; |
2419 | default: | |
45a1e866 | 2420 | str = phex (l, sizeof (l)); |
5683e87a | 2421 | break; |
104c1213 | 2422 | } |
5683e87a | 2423 | return str; |
104c1213 JM |
2424 | } |
2425 | ||
c5aa993b | 2426 | char * |
5683e87a | 2427 | phex_nz (ULONGEST l, int sizeof_l) |
c906108c | 2428 | { |
faf833ca | 2429 | char *str; |
5683e87a | 2430 | switch (sizeof_l) |
c906108c | 2431 | { |
c5aa993b JM |
2432 | case 8: |
2433 | { | |
5683e87a | 2434 | unsigned long high = (unsigned long) (l >> thirty_two); |
faf833ca | 2435 | str = get_cell (); |
c5aa993b | 2436 | if (high == 0) |
5683e87a | 2437 | sprintf (str, "%lx", (unsigned long) (l & 0xffffffff)); |
c5aa993b | 2438 | else |
5683e87a AC |
2439 | sprintf (str, "%lx%08lx", |
2440 | high, (unsigned long) (l & 0xffffffff)); | |
c906108c | 2441 | break; |
c5aa993b JM |
2442 | } |
2443 | case 4: | |
faf833ca | 2444 | str = get_cell (); |
5683e87a | 2445 | sprintf (str, "%lx", (unsigned long) l); |
c5aa993b JM |
2446 | break; |
2447 | case 2: | |
faf833ca | 2448 | str = get_cell (); |
5683e87a | 2449 | sprintf (str, "%x", (unsigned short) (l & 0xffff)); |
c5aa993b JM |
2450 | break; |
2451 | default: | |
faf833ca | 2452 | str = phex_nz (l, sizeof (l)); |
5683e87a | 2453 | break; |
c906108c | 2454 | } |
5683e87a | 2455 | return str; |
c906108c | 2456 | } |
ac2e2ef7 AC |
2457 | |
2458 | ||
2459 | /* Convert to / from the hosts pointer to GDB's internal CORE_ADDR | |
2460 | using the target's conversion routines. */ | |
2461 | CORE_ADDR | |
2462 | host_pointer_to_address (void *ptr) | |
2463 | { | |
090a2205 | 2464 | if (sizeof (ptr) != TYPE_LENGTH (builtin_type_void_data_ptr)) |
8e65ff28 AC |
2465 | internal_error (__FILE__, __LINE__, |
2466 | "core_addr_to_void_ptr: bad cast"); | |
090a2205 | 2467 | return POINTER_TO_ADDRESS (builtin_type_void_data_ptr, &ptr); |
ac2e2ef7 AC |
2468 | } |
2469 | ||
2470 | void * | |
2471 | address_to_host_pointer (CORE_ADDR addr) | |
2472 | { | |
2473 | void *ptr; | |
090a2205 | 2474 | if (sizeof (ptr) != TYPE_LENGTH (builtin_type_void_data_ptr)) |
8e65ff28 AC |
2475 | internal_error (__FILE__, __LINE__, |
2476 | "core_addr_to_void_ptr: bad cast"); | |
090a2205 | 2477 | ADDRESS_TO_POINTER (builtin_type_void_data_ptr, &ptr, addr); |
ac2e2ef7 AC |
2478 | return ptr; |
2479 | } | |
03dd37c3 AC |
2480 | |
2481 | /* Convert a CORE_ADDR into a string. */ | |
2482 | const char * | |
2483 | core_addr_to_string (const CORE_ADDR addr) | |
49b563f9 KS |
2484 | { |
2485 | char *str = get_cell (); | |
2486 | strcpy (str, "0x"); | |
2487 | strcat (str, phex (addr, sizeof (addr))); | |
2488 | return str; | |
2489 | } | |
2490 | ||
2491 | const char * | |
2492 | core_addr_to_string_nz (const CORE_ADDR addr) | |
03dd37c3 AC |
2493 | { |
2494 | char *str = get_cell (); | |
2495 | strcpy (str, "0x"); | |
2496 | strcat (str, phex_nz (addr, sizeof (addr))); | |
2497 | return str; | |
2498 | } | |
2499 | ||
2500 | /* Convert a string back into a CORE_ADDR. */ | |
2501 | CORE_ADDR | |
2502 | string_to_core_addr (const char *my_string) | |
2503 | { | |
2504 | CORE_ADDR addr = 0; | |
2505 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') | |
2506 | { | |
2507 | /* Assume that it is in decimal. */ | |
2508 | int i; | |
2509 | for (i = 2; my_string[i] != '\0'; i++) | |
2510 | { | |
2511 | if (isdigit (my_string[i])) | |
2512 | addr = (my_string[i] - '0') + (addr * 16); | |
2513 | else if (isxdigit (my_string[i])) | |
2514 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); | |
2515 | else | |
2516 | internal_error (__FILE__, __LINE__, "invalid hex"); | |
2517 | } | |
2518 | } | |
2519 | else | |
2520 | { | |
2521 | /* Assume that it is in decimal. */ | |
2522 | int i; | |
2523 | for (i = 0; my_string[i] != '\0'; i++) | |
2524 | { | |
2525 | if (isdigit (my_string[i])) | |
2526 | addr = (my_string[i] - '0') + (addr * 10); | |
2527 | else | |
2528 | internal_error (__FILE__, __LINE__, "invalid decimal"); | |
2529 | } | |
2530 | } | |
2531 | return addr; | |
2532 | } | |
58d370e0 TT |
2533 | |
2534 | char * | |
2535 | gdb_realpath (const char *filename) | |
2536 | { | |
a4db0f07 RH |
2537 | #if defined(HAVE_REALPATH) |
2538 | # if defined (PATH_MAX) | |
58d370e0 | 2539 | char buf[PATH_MAX]; |
a4db0f07 RH |
2540 | # define USE_REALPATH |
2541 | # elif defined (MAXPATHLEN) | |
2d1b2124 | 2542 | char buf[MAXPATHLEN]; |
a4db0f07 RH |
2543 | # define USE_REALPATH |
2544 | # elif defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA) | |
b84911e8 | 2545 | char *buf = alloca ((size_t)pathconf ("/", _PC_PATH_MAX)); |
a4db0f07 RH |
2546 | # define USE_REALPATH |
2547 | # endif | |
2548 | #endif /* HAVE_REALPATH */ | |
2549 | ||
2550 | #if defined(USE_REALPATH) | |
58d370e0 TT |
2551 | char *rp = realpath (filename, buf); |
2552 | return xstrdup (rp ? rp : filename); | |
a4db0f07 RH |
2553 | #elif defined(HAVE_CANONICALIZE_FILE_NAME) |
2554 | return canonicalize_file_name (filename); | |
58d370e0 TT |
2555 | #else |
2556 | return xstrdup (filename); | |
2557 | #endif | |
2558 | } |