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 | |
81b8eb80 | 84 | |
917317f4 JM |
85 | #undef XMALLOC |
86 | #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE))) | |
87 | ||
c906108c SS |
88 | /* readline defines this. */ |
89 | #undef savestring | |
90 | ||
507f3c78 | 91 | void (*error_begin_hook) (void); |
c906108c | 92 | |
2acceee2 JM |
93 | /* Holds the last error message issued by gdb */ |
94 | ||
d9fcf2fb | 95 | static struct ui_file *gdb_lasterr; |
2acceee2 | 96 | |
c906108c SS |
97 | /* Prototypes for local functions */ |
98 | ||
d9fcf2fb JM |
99 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
100 | va_list, int); | |
c906108c | 101 | |
d9fcf2fb | 102 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c SS |
103 | |
104 | #if defined (USE_MMALLOC) && !defined (NO_MMCHECK) | |
a14ed312 | 105 | static void malloc_botch (void); |
c906108c SS |
106 | #endif |
107 | ||
a14ed312 | 108 | static void prompt_for_continue (void); |
c906108c | 109 | |
a14ed312 | 110 | static void set_width_command (char *, int, struct cmd_list_element *); |
c906108c | 111 | |
a14ed312 | 112 | static void set_width (void); |
c906108c | 113 | |
c906108c SS |
114 | /* Chain of cleanup actions established with make_cleanup, |
115 | to be executed if an error happens. */ | |
116 | ||
c5aa993b JM |
117 | static struct cleanup *cleanup_chain; /* cleaned up after a failed command */ |
118 | static struct cleanup *final_cleanup_chain; /* cleaned up when gdb exits */ | |
119 | static struct cleanup *run_cleanup_chain; /* cleaned up on each 'run' */ | |
120 | static struct cleanup *exec_cleanup_chain; /* cleaned up on each execution command */ | |
6426a772 JM |
121 | /* cleaned up on each error from within an execution command */ |
122 | static struct cleanup *exec_error_cleanup_chain; | |
43ff13b4 JM |
123 | |
124 | /* Pointer to what is left to do for an execution command after the | |
125 | target stops. Used only in asynchronous mode, by targets that | |
126 | support async execution. The finish and until commands use it. So | |
127 | does the target extended-remote command. */ | |
128 | struct continuation *cmd_continuation; | |
c2d11a7d | 129 | struct continuation *intermediate_continuation; |
c906108c SS |
130 | |
131 | /* Nonzero if we have job control. */ | |
132 | ||
133 | int job_control; | |
134 | ||
135 | /* Nonzero means a quit has been requested. */ | |
136 | ||
137 | int quit_flag; | |
138 | ||
139 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
140 | than waiting until QUIT is executed. Be careful in setting this; | |
141 | code which executes with immediate_quit set has to be very careful | |
142 | about being able to deal with being interrupted at any time. It is | |
143 | almost always better to use QUIT; the only exception I can think of | |
144 | is being able to quit out of a system call (using EINTR loses if | |
145 | the SIGINT happens between the previous QUIT and the system call). | |
146 | To immediately quit in the case in which a SIGINT happens between | |
147 | the previous QUIT and setting immediate_quit (desirable anytime we | |
148 | expect to block), call QUIT after setting immediate_quit. */ | |
149 | ||
150 | int immediate_quit; | |
151 | ||
152 | /* Nonzero means that encoded C++ names should be printed out in their | |
153 | C++ form rather than raw. */ | |
154 | ||
155 | int demangle = 1; | |
156 | ||
157 | /* Nonzero means that encoded C++ names should be printed out in their | |
158 | C++ form even in assembler language displays. If this is set, but | |
159 | DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */ | |
160 | ||
161 | int asm_demangle = 0; | |
162 | ||
163 | /* Nonzero means that strings with character values >0x7F should be printed | |
164 | as octal escapes. Zero means just print the value (e.g. it's an | |
165 | international character, and the terminal or window can cope.) */ | |
166 | ||
167 | int sevenbit_strings = 0; | |
168 | ||
169 | /* String to be printed before error messages, if any. */ | |
170 | ||
171 | char *error_pre_print; | |
172 | ||
173 | /* String to be printed before quit messages, if any. */ | |
174 | ||
175 | char *quit_pre_print; | |
176 | ||
177 | /* String to be printed before warning messages, if any. */ | |
178 | ||
179 | char *warning_pre_print = "\nwarning: "; | |
180 | ||
181 | int pagination_enabled = 1; | |
c906108c | 182 | \f |
c5aa993b | 183 | |
c906108c SS |
184 | /* Add a new cleanup to the cleanup_chain, |
185 | and return the previous chain pointer | |
186 | to be passed later to do_cleanups or discard_cleanups. | |
187 | Args are FUNCTION to clean up with, and ARG to pass to it. */ | |
188 | ||
189 | struct cleanup * | |
e4005526 | 190 | make_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 191 | { |
c5aa993b | 192 | return make_my_cleanup (&cleanup_chain, function, arg); |
c906108c SS |
193 | } |
194 | ||
195 | struct cleanup * | |
e4005526 | 196 | make_final_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 197 | { |
c5aa993b | 198 | return make_my_cleanup (&final_cleanup_chain, function, arg); |
c906108c | 199 | } |
7a292a7a | 200 | |
c906108c | 201 | struct cleanup * |
e4005526 | 202 | make_run_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 203 | { |
c5aa993b | 204 | return make_my_cleanup (&run_cleanup_chain, function, arg); |
c906108c | 205 | } |
7a292a7a | 206 | |
43ff13b4 | 207 | struct cleanup * |
e4005526 | 208 | make_exec_cleanup (make_cleanup_ftype *function, void *arg) |
43ff13b4 | 209 | { |
c5aa993b | 210 | return make_my_cleanup (&exec_cleanup_chain, function, arg); |
43ff13b4 JM |
211 | } |
212 | ||
6426a772 | 213 | struct cleanup * |
e4005526 | 214 | make_exec_error_cleanup (make_cleanup_ftype *function, void *arg) |
6426a772 JM |
215 | { |
216 | return make_my_cleanup (&exec_error_cleanup_chain, function, arg); | |
217 | } | |
218 | ||
7a292a7a | 219 | static void |
fba45db2 | 220 | do_freeargv (void *arg) |
7a292a7a | 221 | { |
c5aa993b | 222 | freeargv ((char **) arg); |
7a292a7a SS |
223 | } |
224 | ||
225 | struct cleanup * | |
fba45db2 | 226 | make_cleanup_freeargv (char **arg) |
7a292a7a SS |
227 | { |
228 | return make_my_cleanup (&cleanup_chain, do_freeargv, arg); | |
229 | } | |
230 | ||
5c65bbb6 AC |
231 | static void |
232 | do_bfd_close_cleanup (void *arg) | |
233 | { | |
234 | bfd_close (arg); | |
235 | } | |
236 | ||
237 | struct cleanup * | |
238 | make_cleanup_bfd_close (bfd *abfd) | |
239 | { | |
240 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
241 | } | |
242 | ||
f5ff8c83 AC |
243 | static void |
244 | do_close_cleanup (void *arg) | |
245 | { | |
f042532c AC |
246 | int *fd = arg; |
247 | close (*fd); | |
248 | xfree (fd); | |
f5ff8c83 AC |
249 | } |
250 | ||
251 | struct cleanup * | |
252 | make_cleanup_close (int fd) | |
253 | { | |
f042532c AC |
254 | int *saved_fd = xmalloc (sizeof (fd)); |
255 | *saved_fd = fd; | |
256 | return make_cleanup (do_close_cleanup, saved_fd); | |
f5ff8c83 AC |
257 | } |
258 | ||
11cf8741 | 259 | static void |
d9fcf2fb | 260 | do_ui_file_delete (void *arg) |
11cf8741 | 261 | { |
d9fcf2fb | 262 | ui_file_delete (arg); |
11cf8741 JM |
263 | } |
264 | ||
265 | struct cleanup * | |
d9fcf2fb | 266 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 267 | { |
d9fcf2fb | 268 | return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg); |
11cf8741 JM |
269 | } |
270 | ||
c906108c | 271 | struct cleanup * |
e4005526 AC |
272 | make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function, |
273 | void *arg) | |
c906108c SS |
274 | { |
275 | register struct cleanup *new | |
c5aa993b | 276 | = (struct cleanup *) xmalloc (sizeof (struct cleanup)); |
c906108c SS |
277 | register struct cleanup *old_chain = *pmy_chain; |
278 | ||
279 | new->next = *pmy_chain; | |
280 | new->function = function; | |
281 | new->arg = arg; | |
282 | *pmy_chain = new; | |
283 | ||
284 | return old_chain; | |
285 | } | |
286 | ||
287 | /* Discard cleanups and do the actions they describe | |
288 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
289 | ||
290 | void | |
fba45db2 | 291 | do_cleanups (register struct cleanup *old_chain) |
c906108c | 292 | { |
c5aa993b | 293 | do_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
294 | } |
295 | ||
296 | void | |
fba45db2 | 297 | do_final_cleanups (register struct cleanup *old_chain) |
c906108c | 298 | { |
c5aa993b | 299 | do_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
300 | } |
301 | ||
302 | void | |
fba45db2 | 303 | do_run_cleanups (register struct cleanup *old_chain) |
c906108c | 304 | { |
c5aa993b | 305 | do_my_cleanups (&run_cleanup_chain, old_chain); |
c906108c SS |
306 | } |
307 | ||
43ff13b4 | 308 | void |
fba45db2 | 309 | do_exec_cleanups (register struct cleanup *old_chain) |
43ff13b4 | 310 | { |
c5aa993b | 311 | do_my_cleanups (&exec_cleanup_chain, old_chain); |
43ff13b4 JM |
312 | } |
313 | ||
6426a772 | 314 | void |
fba45db2 | 315 | do_exec_error_cleanups (register struct cleanup *old_chain) |
6426a772 JM |
316 | { |
317 | do_my_cleanups (&exec_error_cleanup_chain, old_chain); | |
318 | } | |
319 | ||
c906108c | 320 | void |
fba45db2 KB |
321 | do_my_cleanups (register struct cleanup **pmy_chain, |
322 | register struct cleanup *old_chain) | |
c906108c SS |
323 | { |
324 | register struct cleanup *ptr; | |
325 | while ((ptr = *pmy_chain) != old_chain) | |
326 | { | |
327 | *pmy_chain = ptr->next; /* Do this first incase recursion */ | |
328 | (*ptr->function) (ptr->arg); | |
b8c9b27d | 329 | xfree (ptr); |
c906108c SS |
330 | } |
331 | } | |
332 | ||
333 | /* Discard cleanups, not doing the actions they describe, | |
334 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
335 | ||
336 | void | |
fba45db2 | 337 | discard_cleanups (register struct cleanup *old_chain) |
c906108c | 338 | { |
c5aa993b | 339 | discard_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
340 | } |
341 | ||
342 | void | |
fba45db2 | 343 | discard_final_cleanups (register struct cleanup *old_chain) |
c906108c | 344 | { |
c5aa993b | 345 | discard_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
346 | } |
347 | ||
6426a772 | 348 | void |
fba45db2 | 349 | discard_exec_error_cleanups (register struct cleanup *old_chain) |
6426a772 JM |
350 | { |
351 | discard_my_cleanups (&exec_error_cleanup_chain, old_chain); | |
352 | } | |
353 | ||
c906108c | 354 | void |
fba45db2 KB |
355 | discard_my_cleanups (register struct cleanup **pmy_chain, |
356 | register struct cleanup *old_chain) | |
c906108c SS |
357 | { |
358 | register struct cleanup *ptr; | |
359 | while ((ptr = *pmy_chain) != old_chain) | |
360 | { | |
361 | *pmy_chain = ptr->next; | |
b8c9b27d | 362 | xfree (ptr); |
c906108c SS |
363 | } |
364 | } | |
365 | ||
366 | /* Set the cleanup_chain to 0, and return the old cleanup chain. */ | |
367 | struct cleanup * | |
fba45db2 | 368 | save_cleanups (void) |
c906108c | 369 | { |
c5aa993b | 370 | return save_my_cleanups (&cleanup_chain); |
c906108c SS |
371 | } |
372 | ||
373 | struct cleanup * | |
fba45db2 | 374 | save_final_cleanups (void) |
c906108c | 375 | { |
c5aa993b | 376 | return save_my_cleanups (&final_cleanup_chain); |
c906108c SS |
377 | } |
378 | ||
379 | struct cleanup * | |
fba45db2 | 380 | save_my_cleanups (struct cleanup **pmy_chain) |
c906108c SS |
381 | { |
382 | struct cleanup *old_chain = *pmy_chain; | |
383 | ||
384 | *pmy_chain = 0; | |
385 | return old_chain; | |
386 | } | |
387 | ||
388 | /* Restore the cleanup chain from a previously saved chain. */ | |
389 | void | |
fba45db2 | 390 | restore_cleanups (struct cleanup *chain) |
c906108c | 391 | { |
c5aa993b | 392 | restore_my_cleanups (&cleanup_chain, chain); |
c906108c SS |
393 | } |
394 | ||
395 | void | |
fba45db2 | 396 | restore_final_cleanups (struct cleanup *chain) |
c906108c | 397 | { |
c5aa993b | 398 | restore_my_cleanups (&final_cleanup_chain, chain); |
c906108c SS |
399 | } |
400 | ||
401 | void | |
fba45db2 | 402 | restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain) |
c906108c SS |
403 | { |
404 | *pmy_chain = chain; | |
405 | } | |
406 | ||
407 | /* This function is useful for cleanups. | |
408 | Do | |
409 | ||
c5aa993b JM |
410 | foo = xmalloc (...); |
411 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
412 | |
413 | to arrange to free the object thus allocated. */ | |
414 | ||
415 | void | |
2f9429ae | 416 | free_current_contents (void *ptr) |
c906108c | 417 | { |
2f9429ae | 418 | void **location = ptr; |
e2f9c474 | 419 | if (location == NULL) |
8e65ff28 AC |
420 | internal_error (__FILE__, __LINE__, |
421 | "free_current_contents: NULL pointer"); | |
2f9429ae | 422 | if (*location != NULL) |
e2f9c474 | 423 | { |
b8c9b27d | 424 | xfree (*location); |
e2f9c474 AC |
425 | *location = NULL; |
426 | } | |
c906108c SS |
427 | } |
428 | ||
429 | /* Provide a known function that does nothing, to use as a base for | |
430 | for a possibly long chain of cleanups. This is useful where we | |
431 | use the cleanup chain for handling normal cleanups as well as dealing | |
432 | with cleanups that need to be done as a result of a call to error(). | |
433 | In such cases, we may not be certain where the first cleanup is, unless | |
434 | we have a do-nothing one to always use as the base. */ | |
435 | ||
436 | /* ARGSUSED */ | |
437 | void | |
e4005526 | 438 | null_cleanup (void *arg) |
c906108c SS |
439 | { |
440 | } | |
441 | ||
74f832da | 442 | /* Add a continuation to the continuation list, the global list |
c2d11a7d | 443 | cmd_continuation. The new continuation will be added at the front.*/ |
43ff13b4 | 444 | void |
74f832da KB |
445 | add_continuation (void (*continuation_hook) (struct continuation_arg *), |
446 | struct continuation_arg *arg_list) | |
43ff13b4 | 447 | { |
c5aa993b | 448 | struct continuation *continuation_ptr; |
43ff13b4 | 449 | |
c5aa993b JM |
450 | continuation_ptr = (struct continuation *) xmalloc (sizeof (struct continuation)); |
451 | continuation_ptr->continuation_hook = continuation_hook; | |
452 | continuation_ptr->arg_list = arg_list; | |
453 | continuation_ptr->next = cmd_continuation; | |
454 | cmd_continuation = continuation_ptr; | |
43ff13b4 JM |
455 | } |
456 | ||
457 | /* Walk down the cmd_continuation list, and execute all the | |
c2d11a7d JM |
458 | continuations. There is a problem though. In some cases new |
459 | continuations may be added while we are in the middle of this | |
460 | loop. If this happens they will be added in the front, and done | |
461 | before we have a chance of exhausting those that were already | |
462 | there. We need to then save the beginning of the list in a pointer | |
463 | and do the continuations from there on, instead of using the | |
464 | global beginning of list as our iteration pointer.*/ | |
c5aa993b | 465 | void |
fba45db2 | 466 | do_all_continuations (void) |
c2d11a7d JM |
467 | { |
468 | struct continuation *continuation_ptr; | |
469 | struct continuation *saved_continuation; | |
470 | ||
471 | /* Copy the list header into another pointer, and set the global | |
472 | list header to null, so that the global list can change as a side | |
473 | effect of invoking the continuations and the processing of | |
474 | the preexisting continuations will not be affected. */ | |
475 | continuation_ptr = cmd_continuation; | |
476 | cmd_continuation = NULL; | |
477 | ||
478 | /* Work now on the list we have set aside. */ | |
479 | while (continuation_ptr) | |
480 | { | |
481 | (continuation_ptr->continuation_hook) (continuation_ptr->arg_list); | |
482 | saved_continuation = continuation_ptr; | |
483 | continuation_ptr = continuation_ptr->next; | |
b8c9b27d | 484 | xfree (saved_continuation); |
c2d11a7d JM |
485 | } |
486 | } | |
487 | ||
488 | /* Walk down the cmd_continuation list, and get rid of all the | |
489 | continuations. */ | |
490 | void | |
fba45db2 | 491 | discard_all_continuations (void) |
43ff13b4 | 492 | { |
c5aa993b | 493 | struct continuation *continuation_ptr; |
43ff13b4 | 494 | |
c5aa993b JM |
495 | while (cmd_continuation) |
496 | { | |
c5aa993b JM |
497 | continuation_ptr = cmd_continuation; |
498 | cmd_continuation = continuation_ptr->next; | |
b8c9b27d | 499 | xfree (continuation_ptr); |
c5aa993b | 500 | } |
43ff13b4 | 501 | } |
c2c6d25f | 502 | |
57e687d9 | 503 | /* Add a continuation to the continuation list, the global list |
c2d11a7d JM |
504 | intermediate_continuation. The new continuation will be added at the front.*/ |
505 | void | |
74f832da KB |
506 | add_intermediate_continuation (void (*continuation_hook) |
507 | (struct continuation_arg *), | |
508 | struct continuation_arg *arg_list) | |
c2d11a7d JM |
509 | { |
510 | struct continuation *continuation_ptr; | |
511 | ||
512 | continuation_ptr = (struct continuation *) xmalloc (sizeof (struct continuation)); | |
513 | continuation_ptr->continuation_hook = continuation_hook; | |
514 | continuation_ptr->arg_list = arg_list; | |
515 | continuation_ptr->next = intermediate_continuation; | |
516 | intermediate_continuation = continuation_ptr; | |
517 | } | |
518 | ||
519 | /* Walk down the cmd_continuation list, and execute all the | |
520 | continuations. There is a problem though. In some cases new | |
521 | continuations may be added while we are in the middle of this | |
522 | loop. If this happens they will be added in the front, and done | |
523 | before we have a chance of exhausting those that were already | |
524 | there. We need to then save the beginning of the list in a pointer | |
525 | and do the continuations from there on, instead of using the | |
526 | global beginning of list as our iteration pointer.*/ | |
527 | void | |
fba45db2 | 528 | do_all_intermediate_continuations (void) |
c2d11a7d JM |
529 | { |
530 | struct continuation *continuation_ptr; | |
531 | struct continuation *saved_continuation; | |
532 | ||
533 | /* Copy the list header into another pointer, and set the global | |
534 | list header to null, so that the global list can change as a side | |
535 | effect of invoking the continuations and the processing of | |
536 | the preexisting continuations will not be affected. */ | |
537 | continuation_ptr = intermediate_continuation; | |
538 | intermediate_continuation = NULL; | |
539 | ||
540 | /* Work now on the list we have set aside. */ | |
541 | while (continuation_ptr) | |
542 | { | |
543 | (continuation_ptr->continuation_hook) (continuation_ptr->arg_list); | |
544 | saved_continuation = continuation_ptr; | |
545 | continuation_ptr = continuation_ptr->next; | |
b8c9b27d | 546 | xfree (saved_continuation); |
c2d11a7d JM |
547 | } |
548 | } | |
549 | ||
c2c6d25f JM |
550 | /* Walk down the cmd_continuation list, and get rid of all the |
551 | continuations. */ | |
552 | void | |
fba45db2 | 553 | discard_all_intermediate_continuations (void) |
c2c6d25f JM |
554 | { |
555 | struct continuation *continuation_ptr; | |
556 | ||
c2d11a7d | 557 | while (intermediate_continuation) |
c2c6d25f | 558 | { |
c2d11a7d JM |
559 | continuation_ptr = intermediate_continuation; |
560 | intermediate_continuation = continuation_ptr->next; | |
b8c9b27d | 561 | xfree (continuation_ptr); |
c2c6d25f JM |
562 | } |
563 | } | |
564 | ||
c906108c | 565 | \f |
c5aa993b | 566 | |
f5a96129 AC |
567 | /* Print a warning message. The first argument STRING is the warning |
568 | message, used as an fprintf format string, the second is the | |
569 | va_list of arguments for that string. A warning is unfiltered (not | |
570 | paginated) so that the user does not need to page through each | |
571 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
572 | |
573 | void | |
f5a96129 | 574 | vwarning (const char *string, va_list args) |
c906108c | 575 | { |
f5a96129 AC |
576 | if (warning_hook) |
577 | (*warning_hook) (string, args); | |
578 | else | |
579 | { | |
580 | target_terminal_ours (); | |
581 | wrap_here (""); /* Force out any buffered output */ | |
582 | gdb_flush (gdb_stdout); | |
583 | if (warning_pre_print) | |
584 | fprintf_unfiltered (gdb_stderr, warning_pre_print); | |
585 | vfprintf_unfiltered (gdb_stderr, string, args); | |
586 | fprintf_unfiltered (gdb_stderr, "\n"); | |
587 | va_end (args); | |
588 | } | |
c906108c SS |
589 | } |
590 | ||
591 | /* Print a warning message. | |
592 | The first argument STRING is the warning message, used as a fprintf string, | |
593 | and the remaining args are passed as arguments to it. | |
594 | The primary difference between warnings and errors is that a warning | |
595 | does not force the return to command level. */ | |
596 | ||
c906108c | 597 | void |
c5aa993b | 598 | warning (const char *string,...) |
c906108c SS |
599 | { |
600 | va_list args; | |
c906108c | 601 | va_start (args, string); |
f5a96129 AC |
602 | vwarning (string, args); |
603 | va_end (args); | |
c906108c SS |
604 | } |
605 | ||
c906108c SS |
606 | /* Print an error message and return to command level. |
607 | The first argument STRING is the error message, used as a fprintf string, | |
608 | and the remaining args are passed as arguments to it. */ | |
609 | ||
4ce44c66 JM |
610 | NORETURN void |
611 | verror (const char *string, va_list args) | |
612 | { | |
fffee0be AC |
613 | struct ui_file *tmp_stream = mem_fileopen (); |
614 | make_cleanup_ui_file_delete (tmp_stream); | |
615 | vfprintf_unfiltered (tmp_stream, string, args); | |
616 | error_stream (tmp_stream); | |
4ce44c66 JM |
617 | } |
618 | ||
c906108c | 619 | NORETURN void |
c5aa993b | 620 | error (const char *string,...) |
c906108c SS |
621 | { |
622 | va_list args; | |
c906108c | 623 | va_start (args, string); |
4ce44c66 JM |
624 | verror (string, args); |
625 | va_end (args); | |
c906108c SS |
626 | } |
627 | ||
fffee0be AC |
628 | static void |
629 | do_write (void *data, const char *buffer, long length_buffer) | |
630 | { | |
631 | ui_file_write (data, buffer, length_buffer); | |
632 | } | |
633 | ||
2acceee2 | 634 | NORETURN void |
d9fcf2fb | 635 | error_stream (struct ui_file *stream) |
2acceee2 | 636 | { |
fffee0be AC |
637 | if (error_begin_hook) |
638 | error_begin_hook (); | |
639 | ||
640 | /* Copy the stream into the GDB_LASTERR buffer. */ | |
641 | ui_file_rewind (gdb_lasterr); | |
642 | ui_file_put (stream, do_write, gdb_lasterr); | |
643 | ||
644 | /* Write the message plus any error_pre_print to gdb_stderr. */ | |
645 | target_terminal_ours (); | |
646 | wrap_here (""); /* Force out any buffered output */ | |
647 | gdb_flush (gdb_stdout); | |
648 | annotate_error_begin (); | |
649 | if (error_pre_print) | |
650 | fprintf_filtered (gdb_stderr, error_pre_print); | |
651 | ui_file_put (stream, do_write, gdb_stderr); | |
652 | fprintf_filtered (gdb_stderr, "\n"); | |
653 | ||
b5a2688f | 654 | throw_exception (RETURN_ERROR); |
2acceee2 JM |
655 | } |
656 | ||
657 | /* Get the last error message issued by gdb */ | |
658 | ||
659 | char * | |
660 | error_last_message (void) | |
661 | { | |
4ce44c66 | 662 | long len; |
d9fcf2fb | 663 | return ui_file_xstrdup (gdb_lasterr, &len); |
2acceee2 | 664 | } |
4ce44c66 | 665 | |
2acceee2 JM |
666 | /* This is to be called by main() at the very beginning */ |
667 | ||
668 | void | |
669 | error_init (void) | |
670 | { | |
4ce44c66 | 671 | gdb_lasterr = mem_fileopen (); |
2acceee2 | 672 | } |
c906108c | 673 | |
96baa820 JM |
674 | /* Print a message reporting an internal error. Ask the user if they |
675 | want to continue, dump core, or just exit. */ | |
c906108c | 676 | |
c906108c | 677 | NORETURN void |
8e65ff28 AC |
678 | internal_verror (const char *file, int line, |
679 | const char *fmt, va_list ap) | |
c906108c | 680 | { |
96baa820 JM |
681 | static char msg[] = "Internal GDB error: recursive internal error.\n"; |
682 | static int dejavu = 0; | |
375fc983 | 683 | int quit_p; |
7be570e7 | 684 | int dump_core_p; |
c906108c | 685 | |
96baa820 JM |
686 | /* don't allow infinite error recursion. */ |
687 | switch (dejavu) | |
688 | { | |
689 | case 0: | |
690 | dejavu = 1; | |
691 | break; | |
692 | case 1: | |
693 | dejavu = 2; | |
694 | fputs_unfiltered (msg, gdb_stderr); | |
5c7dd748 | 695 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
96baa820 JM |
696 | default: |
697 | dejavu = 3; | |
698 | write (STDERR_FILENO, msg, sizeof (msg)); | |
699 | exit (1); | |
700 | } | |
c906108c | 701 | |
96baa820 | 702 | /* Try to get the message out */ |
4261bedc | 703 | target_terminal_ours (); |
8e65ff28 | 704 | fprintf_unfiltered (gdb_stderr, "%s:%d: gdb-internal-error: ", file, line); |
4ce44c66 | 705 | vfprintf_unfiltered (gdb_stderr, fmt, ap); |
96baa820 | 706 | fputs_unfiltered ("\n", gdb_stderr); |
c906108c | 707 | |
375fc983 | 708 | /* Default (yes/batch case) is to quit GDB. When in batch mode this |
7be570e7 | 709 | lessens the likelhood of GDB going into an infinate loop. */ |
375fc983 | 710 | quit_p = query ("\ |
62fd9fad | 711 | An internal GDB error was detected. This may make further\n\ |
375fc983 | 712 | debugging unreliable. Quit this debugging session? "); |
7be570e7 | 713 | |
375fc983 AC |
714 | /* Default (yes/batch case) is to dump core. This leaves a GDB |
715 | dropping so that it is easier to see that something went wrong to | |
716 | GDB. */ | |
7be570e7 JM |
717 | dump_core_p = query ("\ |
718 | Create a core file containing the current state of GDB? "); | |
719 | ||
375fc983 | 720 | if (quit_p) |
7be570e7 JM |
721 | { |
722 | if (dump_core_p) | |
375fc983 AC |
723 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
724 | else | |
725 | exit (1); | |
7be570e7 JM |
726 | } |
727 | else | |
728 | { | |
729 | if (dump_core_p) | |
375fc983 AC |
730 | { |
731 | if (fork () == 0) | |
732 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
733 | } | |
7be570e7 | 734 | } |
96baa820 JM |
735 | |
736 | dejavu = 0; | |
b5a2688f | 737 | throw_exception (RETURN_ERROR); |
c906108c SS |
738 | } |
739 | ||
4ce44c66 | 740 | NORETURN void |
8e65ff28 | 741 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
742 | { |
743 | va_list ap; | |
744 | va_start (ap, string); | |
4261bedc | 745 | |
8e65ff28 | 746 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
747 | va_end (ap); |
748 | } | |
749 | ||
c906108c SS |
750 | /* The strerror() function can return NULL for errno values that are |
751 | out of range. Provide a "safe" version that always returns a | |
752 | printable string. */ | |
753 | ||
754 | char * | |
fba45db2 | 755 | safe_strerror (int errnum) |
c906108c SS |
756 | { |
757 | char *msg; | |
758 | static char buf[32]; | |
759 | ||
760 | if ((msg = strerror (errnum)) == NULL) | |
761 | { | |
762 | sprintf (buf, "(undocumented errno %d)", errnum); | |
763 | msg = buf; | |
764 | } | |
765 | return (msg); | |
766 | } | |
767 | ||
c906108c SS |
768 | /* Print the system error message for errno, and also mention STRING |
769 | as the file name for which the error was encountered. | |
770 | Then return to command level. */ | |
771 | ||
772 | NORETURN void | |
6972bc8b | 773 | perror_with_name (const char *string) |
c906108c SS |
774 | { |
775 | char *err; | |
776 | char *combined; | |
777 | ||
778 | err = safe_strerror (errno); | |
779 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
780 | strcpy (combined, string); | |
781 | strcat (combined, ": "); | |
782 | strcat (combined, err); | |
783 | ||
784 | /* I understand setting these is a matter of taste. Still, some people | |
785 | may clear errno but not know about bfd_error. Doing this here is not | |
786 | unreasonable. */ | |
787 | bfd_set_error (bfd_error_no_error); | |
788 | errno = 0; | |
789 | ||
c5aa993b | 790 | error ("%s.", combined); |
c906108c SS |
791 | } |
792 | ||
793 | /* Print the system error message for ERRCODE, and also mention STRING | |
794 | as the file name for which the error was encountered. */ | |
795 | ||
796 | void | |
6972bc8b | 797 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
798 | { |
799 | char *err; | |
800 | char *combined; | |
801 | ||
802 | err = safe_strerror (errcode); | |
803 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
804 | strcpy (combined, string); | |
805 | strcat (combined, ": "); | |
806 | strcat (combined, err); | |
807 | ||
808 | /* We want anything which was printed on stdout to come out first, before | |
809 | this message. */ | |
810 | gdb_flush (gdb_stdout); | |
811 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
812 | } | |
813 | ||
814 | /* Control C eventually causes this to be called, at a convenient time. */ | |
815 | ||
816 | void | |
fba45db2 | 817 | quit (void) |
c906108c | 818 | { |
819cc324 | 819 | struct serial *gdb_stdout_serial = serial_fdopen (1); |
c906108c SS |
820 | |
821 | target_terminal_ours (); | |
822 | ||
823 | /* We want all output to appear now, before we print "Quit". We | |
824 | have 3 levels of buffering we have to flush (it's possible that | |
825 | some of these should be changed to flush the lower-level ones | |
826 | too): */ | |
827 | ||
828 | /* 1. The _filtered buffer. */ | |
c5aa993b | 829 | wrap_here ((char *) 0); |
c906108c SS |
830 | |
831 | /* 2. The stdio buffer. */ | |
832 | gdb_flush (gdb_stdout); | |
833 | gdb_flush (gdb_stderr); | |
834 | ||
835 | /* 3. The system-level buffer. */ | |
2cd58942 AC |
836 | serial_drain_output (gdb_stdout_serial); |
837 | serial_un_fdopen (gdb_stdout_serial); | |
c906108c SS |
838 | |
839 | annotate_error_begin (); | |
840 | ||
841 | /* Don't use *_filtered; we don't want to prompt the user to continue. */ | |
842 | if (quit_pre_print) | |
843 | fprintf_unfiltered (gdb_stderr, quit_pre_print); | |
844 | ||
7be570e7 JM |
845 | #ifdef __MSDOS__ |
846 | /* No steenking SIGINT will ever be coming our way when the | |
847 | program is resumed. Don't lie. */ | |
848 | fprintf_unfiltered (gdb_stderr, "Quit\n"); | |
849 | #else | |
c906108c | 850 | if (job_control |
c5aa993b JM |
851 | /* If there is no terminal switching for this target, then we can't |
852 | possibly get screwed by the lack of job control. */ | |
c906108c SS |
853 | || current_target.to_terminal_ours == NULL) |
854 | fprintf_unfiltered (gdb_stderr, "Quit\n"); | |
855 | else | |
856 | fprintf_unfiltered (gdb_stderr, | |
c5aa993b | 857 | "Quit (expect signal SIGINT when the program is resumed)\n"); |
7be570e7 | 858 | #endif |
b5a2688f | 859 | throw_exception (RETURN_QUIT); |
c906108c SS |
860 | } |
861 | ||
c906108c | 862 | /* Control C comes here */ |
c906108c | 863 | void |
fba45db2 | 864 | request_quit (int signo) |
c906108c SS |
865 | { |
866 | quit_flag = 1; | |
867 | /* Restore the signal handler. Harmless with BSD-style signals, needed | |
868 | for System V-style signals. So just always do it, rather than worrying | |
869 | about USG defines and stuff like that. */ | |
870 | signal (signo, request_quit); | |
871 | ||
872 | #ifdef REQUEST_QUIT | |
873 | REQUEST_QUIT; | |
874 | #else | |
c5aa993b | 875 | if (immediate_quit) |
c906108c SS |
876 | quit (); |
877 | #endif | |
878 | } | |
c906108c SS |
879 | \f |
880 | /* Memory management stuff (malloc friends). */ | |
881 | ||
c906108c SS |
882 | #if !defined (USE_MMALLOC) |
883 | ||
c0e61796 AC |
884 | /* NOTE: These must use PTR so that their definition matches the |
885 | declaration found in "mmalloc.h". */ | |
ed9a39eb | 886 | |
ed1801df AC |
887 | static void * |
888 | mmalloc (void *md, size_t size) | |
c906108c | 889 | { |
c0e61796 | 890 | return malloc (size); /* NOTE: GDB's only call to malloc() */ |
c906108c SS |
891 | } |
892 | ||
ed1801df AC |
893 | static void * |
894 | mrealloc (void *md, void *ptr, size_t size) | |
c906108c | 895 | { |
c5aa993b | 896 | if (ptr == 0) /* Guard against old realloc's */ |
c0e61796 | 897 | return mmalloc (md, size); |
c906108c | 898 | else |
c0e61796 AC |
899 | return realloc (ptr, size); /* NOTE: GDB's only call to ralloc() */ |
900 | } | |
901 | ||
ed1801df AC |
902 | static void * |
903 | mcalloc (void *md, size_t number, size_t size) | |
c0e61796 AC |
904 | { |
905 | return calloc (number, size); /* NOTE: GDB's only call to calloc() */ | |
c906108c SS |
906 | } |
907 | ||
ed1801df AC |
908 | static void |
909 | mfree (void *md, void *ptr) | |
c906108c | 910 | { |
c0e61796 | 911 | free (ptr); /* NOTE: GDB's only call to free() */ |
c906108c SS |
912 | } |
913 | ||
c5aa993b | 914 | #endif /* USE_MMALLOC */ |
c906108c SS |
915 | |
916 | #if !defined (USE_MMALLOC) || defined (NO_MMCHECK) | |
917 | ||
918 | void | |
082faf24 | 919 | init_malloc (void *md) |
c906108c SS |
920 | { |
921 | } | |
922 | ||
923 | #else /* Have mmalloc and want corruption checking */ | |
924 | ||
925 | static void | |
fba45db2 | 926 | malloc_botch (void) |
c906108c | 927 | { |
96baa820 | 928 | fprintf_unfiltered (gdb_stderr, "Memory corruption\n"); |
e1e9e218 | 929 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
930 | } |
931 | ||
932 | /* Attempt to install hooks in mmalloc/mrealloc/mfree for the heap specified | |
933 | by MD, to detect memory corruption. Note that MD may be NULL to specify | |
934 | the default heap that grows via sbrk. | |
935 | ||
936 | Note that for freshly created regions, we must call mmcheckf prior to any | |
937 | mallocs in the region. Otherwise, any region which was allocated prior to | |
938 | installing the checking hooks, which is later reallocated or freed, will | |
939 | fail the checks! The mmcheck function only allows initial hooks to be | |
940 | installed before the first mmalloc. However, anytime after we have called | |
941 | mmcheck the first time to install the checking hooks, we can call it again | |
942 | to update the function pointer to the memory corruption handler. | |
943 | ||
944 | Returns zero on failure, non-zero on success. */ | |
945 | ||
946 | #ifndef MMCHECK_FORCE | |
947 | #define MMCHECK_FORCE 0 | |
948 | #endif | |
949 | ||
950 | void | |
082faf24 | 951 | init_malloc (void *md) |
c906108c SS |
952 | { |
953 | if (!mmcheckf (md, malloc_botch, MMCHECK_FORCE)) | |
954 | { | |
955 | /* Don't use warning(), which relies on current_target being set | |
c5aa993b JM |
956 | to something other than dummy_target, until after |
957 | initialize_all_files(). */ | |
c906108c SS |
958 | |
959 | fprintf_unfiltered | |
960 | (gdb_stderr, "warning: failed to install memory consistency checks; "); | |
961 | fprintf_unfiltered | |
962 | (gdb_stderr, "configuration should define NO_MMCHECK or MMCHECK_FORCE\n"); | |
963 | } | |
964 | ||
965 | mmtrace (); | |
966 | } | |
967 | ||
968 | #endif /* Have mmalloc and want corruption checking */ | |
969 | ||
970 | /* Called when a memory allocation fails, with the number of bytes of | |
971 | memory requested in SIZE. */ | |
972 | ||
973 | NORETURN void | |
fba45db2 | 974 | nomem (long size) |
c906108c SS |
975 | { |
976 | if (size > 0) | |
977 | { | |
8e65ff28 AC |
978 | internal_error (__FILE__, __LINE__, |
979 | "virtual memory exhausted: can't allocate %ld bytes.", size); | |
c906108c SS |
980 | } |
981 | else | |
982 | { | |
8e65ff28 AC |
983 | internal_error (__FILE__, __LINE__, |
984 | "virtual memory exhausted."); | |
c906108c SS |
985 | } |
986 | } | |
987 | ||
c0e61796 | 988 | /* The xmmalloc() family of memory management routines. |
c906108c | 989 | |
c0e61796 AC |
990 | These are are like the mmalloc() family except that they implement |
991 | consistent semantics and guard against typical memory management | |
992 | problems: if a malloc fails, an internal error is thrown; if | |
993 | free(NULL) is called, it is ignored; if *alloc(0) is called, NULL | |
994 | is returned. | |
995 | ||
996 | All these routines are implemented using the mmalloc() family. */ | |
997 | ||
998 | void * | |
999 | xmmalloc (void *md, size_t size) | |
c906108c | 1000 | { |
c0e61796 | 1001 | void *val; |
c906108c SS |
1002 | |
1003 | if (size == 0) | |
1004 | { | |
1005 | val = NULL; | |
1006 | } | |
c0e61796 | 1007 | else |
c906108c | 1008 | { |
c0e61796 AC |
1009 | val = mmalloc (md, size); |
1010 | if (val == NULL) | |
1011 | nomem (size); | |
c906108c SS |
1012 | } |
1013 | return (val); | |
1014 | } | |
1015 | ||
c0e61796 AC |
1016 | void * |
1017 | xmrealloc (void *md, void *ptr, size_t size) | |
c906108c | 1018 | { |
c0e61796 | 1019 | void *val; |
c906108c | 1020 | |
d7fa9de0 | 1021 | if (size == 0) |
c906108c | 1022 | { |
d7fa9de0 KB |
1023 | if (ptr != NULL) |
1024 | mfree (md, ptr); | |
1025 | val = NULL; | |
c906108c SS |
1026 | } |
1027 | else | |
1028 | { | |
d7fa9de0 KB |
1029 | if (ptr != NULL) |
1030 | { | |
1031 | val = mrealloc (md, ptr, size); | |
1032 | } | |
1033 | else | |
1034 | { | |
1035 | val = mmalloc (md, size); | |
1036 | } | |
1037 | if (val == NULL) | |
1038 | { | |
1039 | nomem (size); | |
1040 | } | |
c906108c SS |
1041 | } |
1042 | return (val); | |
1043 | } | |
1044 | ||
c0e61796 AC |
1045 | void * |
1046 | xmcalloc (void *md, size_t number, size_t size) | |
ed9a39eb | 1047 | { |
d7fa9de0 | 1048 | void *mem; |
d7fa9de0 KB |
1049 | if (number == 0 || size == 0) |
1050 | mem = NULL; | |
1051 | else | |
1052 | { | |
c0e61796 | 1053 | mem = mcalloc (md, number, size); |
d7fa9de0 KB |
1054 | if (mem == NULL) |
1055 | nomem (number * size); | |
1056 | } | |
ed9a39eb JM |
1057 | return mem; |
1058 | } | |
1059 | ||
c0e61796 AC |
1060 | void |
1061 | xmfree (void *md, void *ptr) | |
1062 | { | |
1063 | if (ptr != NULL) | |
1064 | mfree (md, ptr); | |
1065 | } | |
1066 | ||
1067 | /* The xmalloc() (libiberty.h) family of memory management routines. | |
1068 | ||
1069 | These are like the ISO-C malloc() family except that they implement | |
1070 | consistent semantics and guard against typical memory management | |
1071 | problems. See xmmalloc() above for further information. | |
1072 | ||
1073 | All these routines are wrappers to the xmmalloc() family. */ | |
1074 | ||
1075 | /* NOTE: These are declared using PTR to ensure consistency with | |
1076 | "libiberty.h". xfree() is GDB local. */ | |
1077 | ||
1078 | PTR | |
1079 | xmalloc (size_t size) | |
1080 | { | |
1081 | return xmmalloc (NULL, size); | |
1082 | } | |
c906108c SS |
1083 | |
1084 | PTR | |
fba45db2 | 1085 | xrealloc (PTR ptr, size_t size) |
c906108c | 1086 | { |
c0e61796 | 1087 | return xmrealloc (NULL, ptr, size); |
c906108c | 1088 | } |
b8c9b27d | 1089 | |
c0e61796 AC |
1090 | PTR |
1091 | xcalloc (size_t number, size_t size) | |
1092 | { | |
1093 | return xmcalloc (NULL, number, size); | |
1094 | } | |
b8c9b27d KB |
1095 | |
1096 | void | |
1097 | xfree (void *ptr) | |
1098 | { | |
c0e61796 | 1099 | xmfree (NULL, ptr); |
b8c9b27d | 1100 | } |
c906108c | 1101 | \f |
c5aa993b | 1102 | |
76995688 AC |
1103 | /* Like asprintf/vasprintf but get an internal_error if the call |
1104 | fails. */ | |
1105 | ||
1106 | void | |
1107 | xasprintf (char **ret, const char *format, ...) | |
1108 | { | |
1109 | va_list args; | |
1110 | va_start (args, format); | |
1111 | xvasprintf (ret, format, args); | |
1112 | va_end (args); | |
1113 | } | |
1114 | ||
1115 | void | |
1116 | xvasprintf (char **ret, const char *format, va_list ap) | |
1117 | { | |
1118 | int status = vasprintf (ret, format, ap); | |
1119 | /* NULL could be returned due to a memory allocation problem; a | |
1120 | badly format string; or something else. */ | |
1121 | if ((*ret) == NULL) | |
8e65ff28 AC |
1122 | internal_error (__FILE__, __LINE__, |
1123 | "vasprintf returned NULL buffer (errno %d)", | |
1124 | errno); | |
76995688 AC |
1125 | /* A negative status with a non-NULL buffer shouldn't never |
1126 | happen. But to be sure. */ | |
1127 | if (status < 0) | |
8e65ff28 AC |
1128 | internal_error (__FILE__, __LINE__, |
1129 | "vasprintf call failed (errno %d)", | |
1130 | errno); | |
76995688 AC |
1131 | } |
1132 | ||
1133 | ||
c906108c SS |
1134 | /* My replacement for the read system call. |
1135 | Used like `read' but keeps going if `read' returns too soon. */ | |
1136 | ||
1137 | int | |
fba45db2 | 1138 | myread (int desc, char *addr, int len) |
c906108c SS |
1139 | { |
1140 | register int val; | |
1141 | int orglen = len; | |
1142 | ||
1143 | while (len > 0) | |
1144 | { | |
1145 | val = read (desc, addr, len); | |
1146 | if (val < 0) | |
1147 | return val; | |
1148 | if (val == 0) | |
1149 | return orglen - len; | |
1150 | len -= val; | |
1151 | addr += val; | |
1152 | } | |
1153 | return orglen; | |
1154 | } | |
1155 | \f | |
1156 | /* Make a copy of the string at PTR with SIZE characters | |
1157 | (and add a null character at the end in the copy). | |
1158 | Uses malloc to get the space. Returns the address of the copy. */ | |
1159 | ||
1160 | char * | |
5565b556 | 1161 | savestring (const char *ptr, size_t size) |
c906108c SS |
1162 | { |
1163 | register char *p = (char *) xmalloc (size + 1); | |
1164 | memcpy (p, ptr, size); | |
1165 | p[size] = 0; | |
1166 | return p; | |
1167 | } | |
1168 | ||
1169 | char * | |
5565b556 | 1170 | msavestring (void *md, const char *ptr, size_t size) |
c906108c SS |
1171 | { |
1172 | register char *p = (char *) xmmalloc (md, size + 1); | |
1173 | memcpy (p, ptr, size); | |
1174 | p[size] = 0; | |
1175 | return p; | |
1176 | } | |
1177 | ||
c906108c | 1178 | char * |
082faf24 | 1179 | mstrsave (void *md, const char *ptr) |
c906108c SS |
1180 | { |
1181 | return (msavestring (md, ptr, strlen (ptr))); | |
1182 | } | |
1183 | ||
1184 | void | |
fba45db2 | 1185 | print_spaces (register int n, register struct ui_file *file) |
c906108c | 1186 | { |
392a587b | 1187 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1188 | } |
1189 | ||
1190 | /* Print a host address. */ | |
1191 | ||
1192 | void | |
d9fcf2fb | 1193 | gdb_print_host_address (void *addr, struct ui_file *stream) |
c906108c SS |
1194 | { |
1195 | ||
1196 | /* We could use the %p conversion specifier to fprintf if we had any | |
1197 | way of knowing whether this host supports it. But the following | |
1198 | should work on the Alpha and on 32 bit machines. */ | |
1199 | ||
c5aa993b | 1200 | fprintf_filtered (stream, "0x%lx", (unsigned long) addr); |
c906108c SS |
1201 | } |
1202 | ||
1203 | /* Ask user a y-or-n question and return 1 iff answer is yes. | |
1204 | Takes three args which are given to printf to print the question. | |
1205 | The first, a control string, should end in "? ". | |
1206 | It should not say how to answer, because we do that. */ | |
1207 | ||
1208 | /* VARARGS */ | |
1209 | int | |
6972bc8b | 1210 | query (const char *ctlstr,...) |
c906108c SS |
1211 | { |
1212 | va_list args; | |
1213 | register int answer; | |
1214 | register int ans2; | |
1215 | int retval; | |
1216 | ||
c906108c | 1217 | va_start (args, ctlstr); |
c906108c SS |
1218 | |
1219 | if (query_hook) | |
1220 | { | |
1221 | return query_hook (ctlstr, args); | |
1222 | } | |
1223 | ||
1224 | /* Automatically answer "yes" if input is not from a terminal. */ | |
1225 | if (!input_from_terminal_p ()) | |
1226 | return 1; | |
c906108c SS |
1227 | |
1228 | while (1) | |
1229 | { | |
1230 | wrap_here (""); /* Flush any buffered output */ | |
1231 | gdb_flush (gdb_stdout); | |
1232 | ||
1233 | if (annotation_level > 1) | |
1234 | printf_filtered ("\n\032\032pre-query\n"); | |
1235 | ||
1236 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1237 | printf_filtered ("(y or n) "); | |
1238 | ||
1239 | if (annotation_level > 1) | |
1240 | printf_filtered ("\n\032\032query\n"); | |
1241 | ||
c5aa993b | 1242 | wrap_here (""); |
c906108c SS |
1243 | gdb_flush (gdb_stdout); |
1244 | ||
37767e42 | 1245 | answer = fgetc (stdin); |
c906108c SS |
1246 | clearerr (stdin); /* in case of C-d */ |
1247 | if (answer == EOF) /* C-d */ | |
c5aa993b | 1248 | { |
c906108c SS |
1249 | retval = 1; |
1250 | break; | |
1251 | } | |
1252 | /* Eat rest of input line, to EOF or newline */ | |
37767e42 | 1253 | if (answer != '\n') |
c5aa993b | 1254 | do |
c906108c | 1255 | { |
37767e42 | 1256 | ans2 = fgetc (stdin); |
c906108c SS |
1257 | clearerr (stdin); |
1258 | } | |
c5aa993b | 1259 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); |
c906108c SS |
1260 | |
1261 | if (answer >= 'a') | |
1262 | answer -= 040; | |
1263 | if (answer == 'Y') | |
1264 | { | |
1265 | retval = 1; | |
1266 | break; | |
1267 | } | |
1268 | if (answer == 'N') | |
1269 | { | |
1270 | retval = 0; | |
1271 | break; | |
1272 | } | |
1273 | printf_filtered ("Please answer y or n.\n"); | |
1274 | } | |
1275 | ||
1276 | if (annotation_level > 1) | |
1277 | printf_filtered ("\n\032\032post-query\n"); | |
1278 | return retval; | |
1279 | } | |
c906108c | 1280 | \f |
c5aa993b | 1281 | |
c906108c SS |
1282 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1283 | containing a pointer to the string to parse. That pointer | |
1284 | should point to the character after the \. That pointer | |
1285 | is updated past the characters we use. The value of the | |
1286 | escape sequence is returned. | |
1287 | ||
1288 | A negative value means the sequence \ newline was seen, | |
1289 | which is supposed to be equivalent to nothing at all. | |
1290 | ||
1291 | If \ is followed by a null character, we return a negative | |
1292 | value and leave the string pointer pointing at the null character. | |
1293 | ||
1294 | If \ is followed by 000, we return 0 and leave the string pointer | |
1295 | after the zeros. A value of 0 does not mean end of string. */ | |
1296 | ||
1297 | int | |
fba45db2 | 1298 | parse_escape (char **string_ptr) |
c906108c SS |
1299 | { |
1300 | register int c = *(*string_ptr)++; | |
1301 | switch (c) | |
1302 | { | |
1303 | case 'a': | |
1304 | return 007; /* Bell (alert) char */ | |
1305 | case 'b': | |
1306 | return '\b'; | |
1307 | case 'e': /* Escape character */ | |
1308 | return 033; | |
1309 | case 'f': | |
1310 | return '\f'; | |
1311 | case 'n': | |
1312 | return '\n'; | |
1313 | case 'r': | |
1314 | return '\r'; | |
1315 | case 't': | |
1316 | return '\t'; | |
1317 | case 'v': | |
1318 | return '\v'; | |
1319 | case '\n': | |
1320 | return -2; | |
1321 | case 0: | |
1322 | (*string_ptr)--; | |
1323 | return 0; | |
1324 | case '^': | |
1325 | c = *(*string_ptr)++; | |
1326 | if (c == '\\') | |
1327 | c = parse_escape (string_ptr); | |
1328 | if (c == '?') | |
1329 | return 0177; | |
1330 | return (c & 0200) | (c & 037); | |
c5aa993b | 1331 | |
c906108c SS |
1332 | case '0': |
1333 | case '1': | |
1334 | case '2': | |
1335 | case '3': | |
1336 | case '4': | |
1337 | case '5': | |
1338 | case '6': | |
1339 | case '7': | |
1340 | { | |
1341 | register int i = c - '0'; | |
1342 | register int count = 0; | |
1343 | while (++count < 3) | |
1344 | { | |
1345 | if ((c = *(*string_ptr)++) >= '0' && c <= '7') | |
1346 | { | |
1347 | i *= 8; | |
1348 | i += c - '0'; | |
1349 | } | |
1350 | else | |
1351 | { | |
1352 | (*string_ptr)--; | |
1353 | break; | |
1354 | } | |
1355 | } | |
1356 | return i; | |
1357 | } | |
1358 | default: | |
1359 | return c; | |
1360 | } | |
1361 | } | |
1362 | \f | |
1363 | /* Print the character C on STREAM as part of the contents of a literal | |
1364 | string whose delimiter is QUOTER. Note that this routine should only | |
1365 | be call for printing things which are independent of the language | |
1366 | of the program being debugged. */ | |
1367 | ||
43e526b9 | 1368 | static void |
74f832da KB |
1369 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
1370 | void (*do_fprintf) (struct ui_file *, const char *, ...), | |
1371 | struct ui_file *stream, int quoter) | |
c906108c SS |
1372 | { |
1373 | ||
1374 | c &= 0xFF; /* Avoid sign bit follies */ | |
1375 | ||
c5aa993b JM |
1376 | if (c < 0x20 || /* Low control chars */ |
1377 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1378 | (sevenbit_strings && c >= 0x80)) | |
1379 | { /* high order bit set */ | |
1380 | switch (c) | |
1381 | { | |
1382 | case '\n': | |
43e526b9 | 1383 | do_fputs ("\\n", stream); |
c5aa993b JM |
1384 | break; |
1385 | case '\b': | |
43e526b9 | 1386 | do_fputs ("\\b", stream); |
c5aa993b JM |
1387 | break; |
1388 | case '\t': | |
43e526b9 | 1389 | do_fputs ("\\t", stream); |
c5aa993b JM |
1390 | break; |
1391 | case '\f': | |
43e526b9 | 1392 | do_fputs ("\\f", stream); |
c5aa993b JM |
1393 | break; |
1394 | case '\r': | |
43e526b9 | 1395 | do_fputs ("\\r", stream); |
c5aa993b JM |
1396 | break; |
1397 | case '\033': | |
43e526b9 | 1398 | do_fputs ("\\e", stream); |
c5aa993b JM |
1399 | break; |
1400 | case '\007': | |
43e526b9 | 1401 | do_fputs ("\\a", stream); |
c5aa993b JM |
1402 | break; |
1403 | default: | |
43e526b9 | 1404 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1405 | break; |
1406 | } | |
1407 | } | |
1408 | else | |
1409 | { | |
1410 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1411 | do_fputs ("\\", stream); |
1412 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1413 | } |
c906108c | 1414 | } |
43e526b9 JM |
1415 | |
1416 | /* Print the character C on STREAM as part of the contents of a | |
1417 | literal string whose delimiter is QUOTER. Note that these routines | |
1418 | should only be call for printing things which are independent of | |
1419 | the language of the program being debugged. */ | |
1420 | ||
1421 | void | |
fba45db2 | 1422 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1423 | { |
1424 | while (*str) | |
1425 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1426 | } | |
1427 | ||
1428 | void | |
fba45db2 | 1429 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1430 | { |
1431 | while (*str) | |
1432 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1433 | } | |
1434 | ||
1435 | void | |
fba45db2 | 1436 | fputstrn_unfiltered (const char *str, int n, int quoter, struct ui_file *stream) |
43e526b9 JM |
1437 | { |
1438 | int i; | |
1439 | for (i = 0; i < n; i++) | |
1440 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1441 | } | |
1442 | ||
c906108c | 1443 | \f |
c5aa993b | 1444 | |
c906108c SS |
1445 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1446 | static unsigned int lines_per_page; | |
cbfbd72a | 1447 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c SS |
1448 | static unsigned int chars_per_line; |
1449 | /* Current count of lines printed on this page, chars on this line. */ | |
1450 | static unsigned int lines_printed, chars_printed; | |
1451 | ||
1452 | /* Buffer and start column of buffered text, for doing smarter word- | |
1453 | wrapping. When someone calls wrap_here(), we start buffering output | |
1454 | that comes through fputs_filtered(). If we see a newline, we just | |
1455 | spit it out and forget about the wrap_here(). If we see another | |
1456 | wrap_here(), we spit it out and remember the newer one. If we see | |
1457 | the end of the line, we spit out a newline, the indent, and then | |
1458 | the buffered output. */ | |
1459 | ||
1460 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1461 | are waiting to be output (they have already been counted in chars_printed). | |
1462 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1463 | static char *wrap_buffer; | |
1464 | ||
1465 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1466 | static char *wrap_pointer; | |
1467 | ||
1468 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1469 | is non-zero. */ | |
1470 | static char *wrap_indent; | |
1471 | ||
1472 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1473 | is not in effect. */ | |
1474 | static int wrap_column; | |
c906108c | 1475 | \f |
c5aa993b | 1476 | |
c906108c SS |
1477 | /* Inialize the lines and chars per page */ |
1478 | void | |
fba45db2 | 1479 | init_page_info (void) |
c906108c SS |
1480 | { |
1481 | #if defined(TUI) | |
5ecb1806 | 1482 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1483 | #endif |
1484 | { | |
1485 | /* These defaults will be used if we are unable to get the correct | |
1486 | values from termcap. */ | |
1487 | #if defined(__GO32__) | |
c5aa993b JM |
1488 | lines_per_page = ScreenRows (); |
1489 | chars_per_line = ScreenCols (); | |
1490 | #else | |
c906108c SS |
1491 | lines_per_page = 24; |
1492 | chars_per_line = 80; | |
1493 | ||
d036b4d9 | 1494 | #if !defined (_WIN32) |
c906108c SS |
1495 | /* No termcap under MPW, although might be cool to do something |
1496 | by looking at worksheet or console window sizes. */ | |
1497 | /* Initialize the screen height and width from termcap. */ | |
1498 | { | |
c5aa993b | 1499 | char *termtype = getenv ("TERM"); |
c906108c | 1500 | |
c5aa993b JM |
1501 | /* Positive means success, nonpositive means failure. */ |
1502 | int status; | |
c906108c | 1503 | |
c5aa993b JM |
1504 | /* 2048 is large enough for all known terminals, according to the |
1505 | GNU termcap manual. */ | |
1506 | char term_buffer[2048]; | |
c906108c | 1507 | |
c5aa993b JM |
1508 | if (termtype) |
1509 | { | |
c906108c SS |
1510 | status = tgetent (term_buffer, termtype); |
1511 | if (status > 0) | |
1512 | { | |
c5aa993b | 1513 | int val; |
c906108c | 1514 | int running_in_emacs = getenv ("EMACS") != NULL; |
c5aa993b JM |
1515 | |
1516 | val = tgetnum ("li"); | |
1517 | if (val >= 0 && !running_in_emacs) | |
1518 | lines_per_page = val; | |
1519 | else | |
1520 | /* The number of lines per page is not mentioned | |
c906108c SS |
1521 | in the terminal description. This probably means |
1522 | that paging is not useful (e.g. emacs shell window), | |
1523 | so disable paging. */ | |
c5aa993b JM |
1524 | lines_per_page = UINT_MAX; |
1525 | ||
1526 | val = tgetnum ("co"); | |
1527 | if (val >= 0) | |
1528 | chars_per_line = val; | |
c906108c | 1529 | } |
c5aa993b | 1530 | } |
c906108c SS |
1531 | } |
1532 | #endif /* MPW */ | |
1533 | ||
1534 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) | |
1535 | ||
1536 | /* If there is a better way to determine the window size, use it. */ | |
1537 | SIGWINCH_HANDLER (SIGWINCH); | |
1538 | #endif | |
1539 | #endif | |
1540 | /* If the output is not a terminal, don't paginate it. */ | |
d9fcf2fb | 1541 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b JM |
1542 | lines_per_page = UINT_MAX; |
1543 | } /* the command_line_version */ | |
1544 | set_width (); | |
c906108c SS |
1545 | } |
1546 | ||
1547 | static void | |
fba45db2 | 1548 | set_width (void) |
c906108c SS |
1549 | { |
1550 | if (chars_per_line == 0) | |
c5aa993b | 1551 | init_page_info (); |
c906108c SS |
1552 | |
1553 | if (!wrap_buffer) | |
1554 | { | |
1555 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1556 | wrap_buffer[0] = '\0'; | |
1557 | } | |
1558 | else | |
1559 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
c5aa993b | 1560 | wrap_pointer = wrap_buffer; /* Start it at the beginning */ |
c906108c SS |
1561 | } |
1562 | ||
1563 | /* ARGSUSED */ | |
c5aa993b | 1564 | static void |
fba45db2 | 1565 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c SS |
1566 | { |
1567 | set_width (); | |
1568 | } | |
1569 | ||
1570 | /* Wait, so the user can read what's on the screen. Prompt the user | |
1571 | to continue by pressing RETURN. */ | |
1572 | ||
1573 | static void | |
fba45db2 | 1574 | prompt_for_continue (void) |
c906108c SS |
1575 | { |
1576 | char *ignore; | |
1577 | char cont_prompt[120]; | |
1578 | ||
1579 | if (annotation_level > 1) | |
1580 | printf_unfiltered ("\n\032\032pre-prompt-for-continue\n"); | |
1581 | ||
1582 | strcpy (cont_prompt, | |
1583 | "---Type <return> to continue, or q <return> to quit---"); | |
1584 | if (annotation_level > 1) | |
1585 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1586 | ||
1587 | /* We must do this *before* we call gdb_readline, else it will eventually | |
1588 | call us -- thinking that we're trying to print beyond the end of the | |
1589 | screen. */ | |
1590 | reinitialize_more_filter (); | |
1591 | ||
1592 | immediate_quit++; | |
1593 | /* On a real operating system, the user can quit with SIGINT. | |
1594 | But not on GO32. | |
1595 | ||
1596 | 'q' is provided on all systems so users don't have to change habits | |
1597 | from system to system, and because telling them what to do in | |
1598 | the prompt is more user-friendly than expecting them to think of | |
1599 | SIGINT. */ | |
1600 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
1601 | whereas control-C to gdb_readline will cause the user to get dumped | |
1602 | out to DOS. */ | |
1603 | ignore = readline (cont_prompt); | |
1604 | ||
1605 | if (annotation_level > 1) | |
1606 | printf_unfiltered ("\n\032\032post-prompt-for-continue\n"); | |
1607 | ||
1608 | if (ignore) | |
1609 | { | |
1610 | char *p = ignore; | |
1611 | while (*p == ' ' || *p == '\t') | |
1612 | ++p; | |
1613 | if (p[0] == 'q') | |
0f71a2f6 | 1614 | { |
6426a772 | 1615 | if (!event_loop_p) |
0f71a2f6 JM |
1616 | request_quit (SIGINT); |
1617 | else | |
c5aa993b | 1618 | async_request_quit (0); |
0f71a2f6 | 1619 | } |
b8c9b27d | 1620 | xfree (ignore); |
c906108c SS |
1621 | } |
1622 | immediate_quit--; | |
1623 | ||
1624 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1625 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1626 | reinitialize_more_filter (); | |
1627 | ||
1628 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ | |
1629 | } | |
1630 | ||
1631 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
1632 | ||
1633 | void | |
fba45db2 | 1634 | reinitialize_more_filter (void) |
c906108c SS |
1635 | { |
1636 | lines_printed = 0; | |
1637 | chars_printed = 0; | |
1638 | } | |
1639 | ||
1640 | /* Indicate that if the next sequence of characters overflows the line, | |
1641 | a newline should be inserted here rather than when it hits the end. | |
1642 | If INDENT is non-null, it is a string to be printed to indent the | |
1643 | wrapped part on the next line. INDENT must remain accessible until | |
1644 | the next call to wrap_here() or until a newline is printed through | |
1645 | fputs_filtered(). | |
1646 | ||
1647 | If the line is already overfull, we immediately print a newline and | |
1648 | the indentation, and disable further wrapping. | |
1649 | ||
1650 | If we don't know the width of lines, but we know the page height, | |
1651 | we must not wrap words, but should still keep track of newlines | |
1652 | that were explicitly printed. | |
1653 | ||
1654 | INDENT should not contain tabs, as that will mess up the char count | |
1655 | on the next line. FIXME. | |
1656 | ||
1657 | This routine is guaranteed to force out any output which has been | |
1658 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1659 | used to force out output from the wrap_buffer. */ | |
1660 | ||
1661 | void | |
fba45db2 | 1662 | wrap_here (char *indent) |
c906108c SS |
1663 | { |
1664 | /* This should have been allocated, but be paranoid anyway. */ | |
1665 | if (!wrap_buffer) | |
e1e9e218 | 1666 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
1667 | |
1668 | if (wrap_buffer[0]) | |
1669 | { | |
1670 | *wrap_pointer = '\0'; | |
1671 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1672 | } | |
1673 | wrap_pointer = wrap_buffer; | |
1674 | wrap_buffer[0] = '\0'; | |
c5aa993b | 1675 | if (chars_per_line == UINT_MAX) /* No line overflow checking */ |
c906108c SS |
1676 | { |
1677 | wrap_column = 0; | |
1678 | } | |
1679 | else if (chars_printed >= chars_per_line) | |
1680 | { | |
1681 | puts_filtered ("\n"); | |
1682 | if (indent != NULL) | |
1683 | puts_filtered (indent); | |
1684 | wrap_column = 0; | |
1685 | } | |
1686 | else | |
1687 | { | |
1688 | wrap_column = chars_printed; | |
1689 | if (indent == NULL) | |
1690 | wrap_indent = ""; | |
1691 | else | |
1692 | wrap_indent = indent; | |
1693 | } | |
1694 | } | |
1695 | ||
1696 | /* Ensure that whatever gets printed next, using the filtered output | |
1697 | commands, starts at the beginning of the line. I.E. if there is | |
1698 | any pending output for the current line, flush it and start a new | |
1699 | line. Otherwise do nothing. */ | |
1700 | ||
1701 | void | |
fba45db2 | 1702 | begin_line (void) |
c906108c SS |
1703 | { |
1704 | if (chars_printed > 0) | |
1705 | { | |
1706 | puts_filtered ("\n"); | |
1707 | } | |
1708 | } | |
1709 | ||
ac9a91a7 | 1710 | |
c906108c SS |
1711 | /* Like fputs but if FILTER is true, pause after every screenful. |
1712 | ||
1713 | Regardless of FILTER can wrap at points other than the final | |
1714 | character of a line. | |
1715 | ||
1716 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
1717 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
1718 | anything. | |
1719 | ||
1720 | Note that a longjmp to top level may occur in this routine (only if | |
1721 | FILTER is true) (since prompt_for_continue may do so) so this | |
1722 | routine should not be called when cleanups are not in place. */ | |
1723 | ||
1724 | static void | |
fba45db2 KB |
1725 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
1726 | int filter) | |
c906108c SS |
1727 | { |
1728 | const char *lineptr; | |
1729 | ||
1730 | if (linebuffer == 0) | |
1731 | return; | |
1732 | ||
1733 | /* Don't do any filtering if it is disabled. */ | |
7a292a7a | 1734 | if ((stream != gdb_stdout) || !pagination_enabled |
c5aa993b | 1735 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX)) |
c906108c SS |
1736 | { |
1737 | fputs_unfiltered (linebuffer, stream); | |
1738 | return; | |
1739 | } | |
1740 | ||
1741 | /* Go through and output each character. Show line extension | |
1742 | when this is necessary; prompt user for new page when this is | |
1743 | necessary. */ | |
c5aa993b | 1744 | |
c906108c SS |
1745 | lineptr = linebuffer; |
1746 | while (*lineptr) | |
1747 | { | |
1748 | /* Possible new page. */ | |
1749 | if (filter && | |
1750 | (lines_printed >= lines_per_page - 1)) | |
1751 | prompt_for_continue (); | |
1752 | ||
1753 | while (*lineptr && *lineptr != '\n') | |
1754 | { | |
1755 | /* Print a single line. */ | |
1756 | if (*lineptr == '\t') | |
1757 | { | |
1758 | if (wrap_column) | |
1759 | *wrap_pointer++ = '\t'; | |
1760 | else | |
1761 | fputc_unfiltered ('\t', stream); | |
1762 | /* Shifting right by 3 produces the number of tab stops | |
1763 | we have already passed, and then adding one and | |
c5aa993b | 1764 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
1765 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
1766 | lineptr++; | |
1767 | } | |
1768 | else | |
1769 | { | |
1770 | if (wrap_column) | |
1771 | *wrap_pointer++ = *lineptr; | |
1772 | else | |
c5aa993b | 1773 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
1774 | chars_printed++; |
1775 | lineptr++; | |
1776 | } | |
c5aa993b | 1777 | |
c906108c SS |
1778 | if (chars_printed >= chars_per_line) |
1779 | { | |
1780 | unsigned int save_chars = chars_printed; | |
1781 | ||
1782 | chars_printed = 0; | |
1783 | lines_printed++; | |
1784 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
1785 | if chars_per_line is right, we probably just overflowed |
1786 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
1787 | if (wrap_column) |
1788 | fputc_unfiltered ('\n', stream); | |
1789 | ||
1790 | /* Possible new page. */ | |
1791 | if (lines_printed >= lines_per_page - 1) | |
1792 | prompt_for_continue (); | |
1793 | ||
1794 | /* Now output indentation and wrapped string */ | |
1795 | if (wrap_column) | |
1796 | { | |
1797 | fputs_unfiltered (wrap_indent, stream); | |
c5aa993b JM |
1798 | *wrap_pointer = '\0'; /* Null-terminate saved stuff */ |
1799 | fputs_unfiltered (wrap_buffer, stream); /* and eject it */ | |
c906108c SS |
1800 | /* FIXME, this strlen is what prevents wrap_indent from |
1801 | containing tabs. However, if we recurse to print it | |
1802 | and count its chars, we risk trouble if wrap_indent is | |
1803 | longer than (the user settable) chars_per_line. | |
1804 | Note also that this can set chars_printed > chars_per_line | |
1805 | if we are printing a long string. */ | |
1806 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 1807 | + (save_chars - wrap_column); |
c906108c SS |
1808 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
1809 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
1810 | wrap_column = 0; /* And disable fancy wrap */ |
1811 | } | |
c906108c SS |
1812 | } |
1813 | } | |
1814 | ||
1815 | if (*lineptr == '\n') | |
1816 | { | |
1817 | chars_printed = 0; | |
c5aa993b | 1818 | wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */ |
c906108c SS |
1819 | lines_printed++; |
1820 | fputc_unfiltered ('\n', stream); | |
1821 | lineptr++; | |
1822 | } | |
1823 | } | |
1824 | } | |
1825 | ||
1826 | void | |
fba45db2 | 1827 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
1828 | { |
1829 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1830 | } | |
1831 | ||
1832 | int | |
fba45db2 | 1833 | putchar_unfiltered (int c) |
c906108c | 1834 | { |
11cf8741 | 1835 | char buf = c; |
d9fcf2fb | 1836 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
1837 | return c; |
1838 | } | |
1839 | ||
d1f4cff8 AC |
1840 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
1841 | May return nonlocally. */ | |
1842 | ||
1843 | int | |
1844 | putchar_filtered (int c) | |
1845 | { | |
1846 | return fputc_filtered (c, gdb_stdout); | |
1847 | } | |
1848 | ||
c906108c | 1849 | int |
fba45db2 | 1850 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 1851 | { |
11cf8741 | 1852 | char buf = c; |
d9fcf2fb | 1853 | ui_file_write (stream, &buf, 1); |
c906108c SS |
1854 | return c; |
1855 | } | |
1856 | ||
1857 | int | |
fba45db2 | 1858 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
1859 | { |
1860 | char buf[2]; | |
1861 | ||
1862 | buf[0] = c; | |
1863 | buf[1] = 0; | |
1864 | fputs_filtered (buf, stream); | |
1865 | return c; | |
1866 | } | |
1867 | ||
1868 | /* puts_debug is like fputs_unfiltered, except it prints special | |
1869 | characters in printable fashion. */ | |
1870 | ||
1871 | void | |
fba45db2 | 1872 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
1873 | { |
1874 | int ch; | |
1875 | ||
1876 | /* Print prefix and suffix after each line. */ | |
1877 | static int new_line = 1; | |
1878 | static int return_p = 0; | |
1879 | static char *prev_prefix = ""; | |
1880 | static char *prev_suffix = ""; | |
1881 | ||
1882 | if (*string == '\n') | |
1883 | return_p = 0; | |
1884 | ||
1885 | /* If the prefix is changing, print the previous suffix, a new line, | |
1886 | and the new prefix. */ | |
c5aa993b | 1887 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 1888 | { |
9846de1b JM |
1889 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
1890 | fputs_unfiltered ("\n", gdb_stdlog); | |
1891 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
1892 | } |
1893 | ||
1894 | /* Print prefix if we printed a newline during the previous call. */ | |
1895 | if (new_line) | |
1896 | { | |
1897 | new_line = 0; | |
9846de1b | 1898 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
1899 | } |
1900 | ||
1901 | prev_prefix = prefix; | |
1902 | prev_suffix = suffix; | |
1903 | ||
1904 | /* Output characters in a printable format. */ | |
1905 | while ((ch = *string++) != '\0') | |
1906 | { | |
1907 | switch (ch) | |
c5aa993b | 1908 | { |
c906108c SS |
1909 | default: |
1910 | if (isprint (ch)) | |
9846de1b | 1911 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
1912 | |
1913 | else | |
9846de1b | 1914 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
1915 | break; |
1916 | ||
c5aa993b JM |
1917 | case '\\': |
1918 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
1919 | break; | |
1920 | case '\b': | |
1921 | fputs_unfiltered ("\\b", gdb_stdlog); | |
1922 | break; | |
1923 | case '\f': | |
1924 | fputs_unfiltered ("\\f", gdb_stdlog); | |
1925 | break; | |
1926 | case '\n': | |
1927 | new_line = 1; | |
1928 | fputs_unfiltered ("\\n", gdb_stdlog); | |
1929 | break; | |
1930 | case '\r': | |
1931 | fputs_unfiltered ("\\r", gdb_stdlog); | |
1932 | break; | |
1933 | case '\t': | |
1934 | fputs_unfiltered ("\\t", gdb_stdlog); | |
1935 | break; | |
1936 | case '\v': | |
1937 | fputs_unfiltered ("\\v", gdb_stdlog); | |
1938 | break; | |
1939 | } | |
c906108c SS |
1940 | |
1941 | return_p = ch == '\r'; | |
1942 | } | |
1943 | ||
1944 | /* Print suffix if we printed a newline. */ | |
1945 | if (new_line) | |
1946 | { | |
9846de1b JM |
1947 | fputs_unfiltered (suffix, gdb_stdlog); |
1948 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
1949 | } |
1950 | } | |
1951 | ||
1952 | ||
1953 | /* Print a variable number of ARGS using format FORMAT. If this | |
1954 | information is going to put the amount written (since the last call | |
1955 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
1956 | call prompt_for_continue to get the users permision to continue. | |
1957 | ||
1958 | Unlike fprintf, this function does not return a value. | |
1959 | ||
1960 | We implement three variants, vfprintf (takes a vararg list and stream), | |
1961 | fprintf (takes a stream to write on), and printf (the usual). | |
1962 | ||
1963 | Note also that a longjmp to top level may occur in this routine | |
1964 | (since prompt_for_continue may do so) so this routine should not be | |
1965 | called when cleanups are not in place. */ | |
1966 | ||
1967 | static void | |
fba45db2 KB |
1968 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
1969 | va_list args, int filter) | |
c906108c SS |
1970 | { |
1971 | char *linebuffer; | |
1972 | struct cleanup *old_cleanups; | |
1973 | ||
76995688 | 1974 | xvasprintf (&linebuffer, format, args); |
b8c9b27d | 1975 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
1976 | fputs_maybe_filtered (linebuffer, stream, filter); |
1977 | do_cleanups (old_cleanups); | |
1978 | } | |
1979 | ||
1980 | ||
1981 | void | |
fba45db2 | 1982 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
1983 | { |
1984 | vfprintf_maybe_filtered (stream, format, args, 1); | |
1985 | } | |
1986 | ||
1987 | void | |
fba45db2 | 1988 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
1989 | { |
1990 | char *linebuffer; | |
1991 | struct cleanup *old_cleanups; | |
1992 | ||
76995688 | 1993 | xvasprintf (&linebuffer, format, args); |
b8c9b27d | 1994 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
1995 | fputs_unfiltered (linebuffer, stream); |
1996 | do_cleanups (old_cleanups); | |
1997 | } | |
1998 | ||
1999 | void | |
fba45db2 | 2000 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2001 | { |
2002 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2003 | } | |
2004 | ||
2005 | void | |
fba45db2 | 2006 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2007 | { |
2008 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2009 | } | |
2010 | ||
c906108c | 2011 | void |
d9fcf2fb | 2012 | fprintf_filtered (struct ui_file * stream, const char *format,...) |
c906108c SS |
2013 | { |
2014 | va_list args; | |
c906108c | 2015 | va_start (args, format); |
c906108c SS |
2016 | vfprintf_filtered (stream, format, args); |
2017 | va_end (args); | |
2018 | } | |
2019 | ||
c906108c | 2020 | void |
d9fcf2fb | 2021 | fprintf_unfiltered (struct ui_file * stream, const char *format,...) |
c906108c SS |
2022 | { |
2023 | va_list args; | |
c906108c | 2024 | va_start (args, format); |
c906108c SS |
2025 | vfprintf_unfiltered (stream, format, args); |
2026 | va_end (args); | |
2027 | } | |
2028 | ||
2029 | /* Like fprintf_filtered, but prints its result indented. | |
2030 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2031 | ||
c906108c | 2032 | void |
d9fcf2fb | 2033 | fprintfi_filtered (int spaces, struct ui_file * stream, const char *format,...) |
c906108c SS |
2034 | { |
2035 | va_list args; | |
c906108c | 2036 | va_start (args, format); |
c906108c SS |
2037 | print_spaces_filtered (spaces, stream); |
2038 | ||
2039 | vfprintf_filtered (stream, format, args); | |
2040 | va_end (args); | |
2041 | } | |
2042 | ||
2043 | ||
c906108c | 2044 | void |
c5aa993b | 2045 | printf_filtered (const char *format,...) |
c906108c SS |
2046 | { |
2047 | va_list args; | |
c906108c | 2048 | va_start (args, format); |
c906108c SS |
2049 | vfprintf_filtered (gdb_stdout, format, args); |
2050 | va_end (args); | |
2051 | } | |
2052 | ||
2053 | ||
c906108c | 2054 | void |
c5aa993b | 2055 | printf_unfiltered (const char *format,...) |
c906108c SS |
2056 | { |
2057 | va_list args; | |
c906108c | 2058 | va_start (args, format); |
c906108c SS |
2059 | vfprintf_unfiltered (gdb_stdout, format, args); |
2060 | va_end (args); | |
2061 | } | |
2062 | ||
2063 | /* Like printf_filtered, but prints it's result indented. | |
2064 | Called as printfi_filtered (spaces, format, ...); */ | |
2065 | ||
c906108c | 2066 | void |
c5aa993b | 2067 | printfi_filtered (int spaces, const char *format,...) |
c906108c SS |
2068 | { |
2069 | va_list args; | |
c906108c | 2070 | va_start (args, format); |
c906108c SS |
2071 | print_spaces_filtered (spaces, gdb_stdout); |
2072 | vfprintf_filtered (gdb_stdout, format, args); | |
2073 | va_end (args); | |
2074 | } | |
2075 | ||
2076 | /* Easy -- but watch out! | |
2077 | ||
2078 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2079 | This one doesn't, and had better not! */ | |
2080 | ||
2081 | void | |
fba45db2 | 2082 | puts_filtered (const char *string) |
c906108c SS |
2083 | { |
2084 | fputs_filtered (string, gdb_stdout); | |
2085 | } | |
2086 | ||
2087 | void | |
fba45db2 | 2088 | puts_unfiltered (const char *string) |
c906108c SS |
2089 | { |
2090 | fputs_unfiltered (string, gdb_stdout); | |
2091 | } | |
2092 | ||
2093 | /* Return a pointer to N spaces and a null. The pointer is good | |
2094 | until the next call to here. */ | |
2095 | char * | |
fba45db2 | 2096 | n_spaces (int n) |
c906108c | 2097 | { |
392a587b JM |
2098 | char *t; |
2099 | static char *spaces = 0; | |
2100 | static int max_spaces = -1; | |
c906108c SS |
2101 | |
2102 | if (n > max_spaces) | |
2103 | { | |
2104 | if (spaces) | |
b8c9b27d | 2105 | xfree (spaces); |
c5aa993b JM |
2106 | spaces = (char *) xmalloc (n + 1); |
2107 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2108 | *--t = ' '; |
2109 | spaces[n] = '\0'; | |
2110 | max_spaces = n; | |
2111 | } | |
2112 | ||
2113 | return spaces + max_spaces - n; | |
2114 | } | |
2115 | ||
2116 | /* Print N spaces. */ | |
2117 | void | |
fba45db2 | 2118 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2119 | { |
2120 | fputs_filtered (n_spaces (n), stream); | |
2121 | } | |
2122 | \f | |
2123 | /* C++ demangler stuff. */ | |
2124 | ||
2125 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language | |
2126 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2127 | If the name is not mangled, or the language for the name is unknown, or | |
2128 | demangling is off, the name is printed in its "raw" form. */ | |
2129 | ||
2130 | void | |
fba45db2 KB |
2131 | fprintf_symbol_filtered (struct ui_file *stream, char *name, enum language lang, |
2132 | int arg_mode) | |
c906108c SS |
2133 | { |
2134 | char *demangled; | |
2135 | ||
2136 | if (name != NULL) | |
2137 | { | |
2138 | /* If user wants to see raw output, no problem. */ | |
2139 | if (!demangle) | |
2140 | { | |
2141 | fputs_filtered (name, stream); | |
2142 | } | |
2143 | else | |
2144 | { | |
2145 | switch (lang) | |
2146 | { | |
2147 | case language_cplus: | |
2148 | demangled = cplus_demangle (name, arg_mode); | |
2149 | break; | |
2150 | case language_java: | |
2151 | demangled = cplus_demangle (name, arg_mode | DMGL_JAVA); | |
2152 | break; | |
2153 | case language_chill: | |
2154 | demangled = chill_demangle (name); | |
2155 | break; | |
2156 | default: | |
2157 | demangled = NULL; | |
2158 | break; | |
2159 | } | |
2160 | fputs_filtered (demangled ? demangled : name, stream); | |
2161 | if (demangled != NULL) | |
2162 | { | |
b8c9b27d | 2163 | xfree (demangled); |
c906108c SS |
2164 | } |
2165 | } | |
2166 | } | |
2167 | } | |
2168 | ||
2169 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2170 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2171 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2172 | |
c906108c SS |
2173 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2174 | This "feature" is useful when searching for matching C++ function names | |
2175 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
2176 | function). */ | |
2177 | ||
2178 | int | |
fba45db2 | 2179 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2180 | { |
2181 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2182 | { | |
2183 | while (isspace (*string1)) | |
2184 | { | |
2185 | string1++; | |
2186 | } | |
2187 | while (isspace (*string2)) | |
2188 | { | |
2189 | string2++; | |
2190 | } | |
2191 | if (*string1 != *string2) | |
2192 | { | |
2193 | break; | |
2194 | } | |
2195 | if (*string1 != '\0') | |
2196 | { | |
2197 | string1++; | |
2198 | string2++; | |
2199 | } | |
2200 | } | |
2201 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2202 | } | |
c906108c | 2203 | \f |
c5aa993b | 2204 | |
c906108c | 2205 | /* |
c5aa993b JM |
2206 | ** subset_compare() |
2207 | ** Answer whether string_to_compare is a full or partial match to | |
2208 | ** template_string. The partial match must be in sequence starting | |
2209 | ** at index 0. | |
2210 | */ | |
c906108c | 2211 | int |
fba45db2 | 2212 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
2213 | { |
2214 | int match; | |
c5aa993b JM |
2215 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL && |
2216 | strlen (string_to_compare) <= strlen (template_string)) | |
2217 | match = (strncmp (template_string, | |
2218 | string_to_compare, | |
2219 | strlen (string_to_compare)) == 0); | |
7a292a7a SS |
2220 | else |
2221 | match = 0; | |
2222 | return match; | |
2223 | } | |
c906108c SS |
2224 | |
2225 | ||
a14ed312 | 2226 | static void pagination_on_command (char *arg, int from_tty); |
7a292a7a | 2227 | static void |
fba45db2 | 2228 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
2229 | { |
2230 | pagination_enabled = 1; | |
2231 | } | |
2232 | ||
a14ed312 | 2233 | static void pagination_on_command (char *arg, int from_tty); |
7a292a7a | 2234 | static void |
fba45db2 | 2235 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
2236 | { |
2237 | pagination_enabled = 0; | |
2238 | } | |
c906108c | 2239 | \f |
c5aa993b | 2240 | |
c906108c | 2241 | void |
fba45db2 | 2242 | initialize_utils (void) |
c906108c SS |
2243 | { |
2244 | struct cmd_list_element *c; | |
2245 | ||
c5aa993b JM |
2246 | c = add_set_cmd ("width", class_support, var_uinteger, |
2247 | (char *) &chars_per_line, | |
2248 | "Set number of characters gdb thinks are in a line.", | |
2249 | &setlist); | |
c906108c | 2250 | add_show_from_set (c, &showlist); |
9f60d481 | 2251 | set_cmd_sfunc (c, set_width_command); |
c906108c SS |
2252 | |
2253 | add_show_from_set | |
2254 | (add_set_cmd ("height", class_support, | |
c5aa993b | 2255 | var_uinteger, (char *) &lines_per_page, |
c906108c SS |
2256 | "Set number of lines gdb thinks are in a page.", &setlist), |
2257 | &showlist); | |
c5aa993b | 2258 | |
c906108c SS |
2259 | init_page_info (); |
2260 | ||
2261 | /* If the output is not a terminal, don't paginate it. */ | |
d9fcf2fb | 2262 | if (!ui_file_isatty (gdb_stdout)) |
c906108c SS |
2263 | lines_per_page = UINT_MAX; |
2264 | ||
c5aa993b | 2265 | set_width_command ((char *) NULL, 0, c); |
c906108c SS |
2266 | |
2267 | add_show_from_set | |
c5aa993b JM |
2268 | (add_set_cmd ("demangle", class_support, var_boolean, |
2269 | (char *) &demangle, | |
2270 | "Set demangling of encoded C++ names when displaying symbols.", | |
c906108c SS |
2271 | &setprintlist), |
2272 | &showprintlist); | |
2273 | ||
2274 | add_show_from_set | |
2275 | (add_set_cmd ("pagination", class_support, | |
c5aa993b | 2276 | var_boolean, (char *) &pagination_enabled, |
c906108c SS |
2277 | "Set state of pagination.", &setlist), |
2278 | &showlist); | |
4261bedc | 2279 | |
c906108c SS |
2280 | if (xdb_commands) |
2281 | { | |
c5aa993b JM |
2282 | add_com ("am", class_support, pagination_on_command, |
2283 | "Enable pagination"); | |
2284 | add_com ("sm", class_support, pagination_off_command, | |
2285 | "Disable pagination"); | |
c906108c SS |
2286 | } |
2287 | ||
2288 | add_show_from_set | |
c5aa993b JM |
2289 | (add_set_cmd ("sevenbit-strings", class_support, var_boolean, |
2290 | (char *) &sevenbit_strings, | |
2291 | "Set printing of 8-bit characters in strings as \\nnn.", | |
c906108c SS |
2292 | &setprintlist), |
2293 | &showprintlist); | |
2294 | ||
2295 | add_show_from_set | |
c5aa993b JM |
2296 | (add_set_cmd ("asm-demangle", class_support, var_boolean, |
2297 | (char *) &asm_demangle, | |
2298 | "Set demangling of C++ names in disassembly listings.", | |
c906108c SS |
2299 | &setprintlist), |
2300 | &showprintlist); | |
2301 | } | |
2302 | ||
2303 | /* Machine specific function to handle SIGWINCH signal. */ | |
2304 | ||
2305 | #ifdef SIGWINCH_HANDLER_BODY | |
c5aa993b | 2306 | SIGWINCH_HANDLER_BODY |
c906108c | 2307 | #endif |
39424bef | 2308 | |
5683e87a AC |
2309 | /* print routines to handle variable size regs, etc. */ |
2310 | ||
c906108c SS |
2311 | /* temporary storage using circular buffer */ |
2312 | #define NUMCELLS 16 | |
2313 | #define CELLSIZE 32 | |
c5aa993b | 2314 | static char * |
fba45db2 | 2315 | get_cell (void) |
c906108c SS |
2316 | { |
2317 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b JM |
2318 | static int cell = 0; |
2319 | if (++cell >= NUMCELLS) | |
2320 | cell = 0; | |
c906108c SS |
2321 | return buf[cell]; |
2322 | } | |
2323 | ||
d4f3574e SS |
2324 | int |
2325 | strlen_paddr (void) | |
2326 | { | |
79496e2f | 2327 | return (TARGET_ADDR_BIT / 8 * 2); |
d4f3574e SS |
2328 | } |
2329 | ||
c5aa993b | 2330 | char * |
104c1213 | 2331 | paddr (CORE_ADDR addr) |
c906108c | 2332 | { |
79496e2f | 2333 | return phex (addr, TARGET_ADDR_BIT / 8); |
c906108c SS |
2334 | } |
2335 | ||
c5aa993b | 2336 | char * |
104c1213 | 2337 | paddr_nz (CORE_ADDR addr) |
c906108c | 2338 | { |
79496e2f | 2339 | return phex_nz (addr, TARGET_ADDR_BIT / 8); |
c906108c SS |
2340 | } |
2341 | ||
104c1213 JM |
2342 | static void |
2343 | decimal2str (char *paddr_str, char *sign, ULONGEST addr) | |
2344 | { | |
2345 | /* steal code from valprint.c:print_decimal(). Should this worry | |
2346 | about the real size of addr as the above does? */ | |
2347 | unsigned long temp[3]; | |
2348 | int i = 0; | |
2349 | do | |
2350 | { | |
2351 | temp[i] = addr % (1000 * 1000 * 1000); | |
2352 | addr /= (1000 * 1000 * 1000); | |
2353 | i++; | |
2354 | } | |
2355 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
2356 | switch (i) | |
2357 | { | |
2358 | case 1: | |
2359 | sprintf (paddr_str, "%s%lu", | |
2360 | sign, temp[0]); | |
2361 | break; | |
2362 | case 2: | |
2363 | sprintf (paddr_str, "%s%lu%09lu", | |
2364 | sign, temp[1], temp[0]); | |
2365 | break; | |
2366 | case 3: | |
2367 | sprintf (paddr_str, "%s%lu%09lu%09lu", | |
2368 | sign, temp[2], temp[1], temp[0]); | |
2369 | break; | |
2370 | default: | |
e1e9e218 | 2371 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
104c1213 JM |
2372 | } |
2373 | } | |
2374 | ||
2375 | char * | |
2376 | paddr_u (CORE_ADDR addr) | |
2377 | { | |
2378 | char *paddr_str = get_cell (); | |
2379 | decimal2str (paddr_str, "", addr); | |
2380 | return paddr_str; | |
2381 | } | |
2382 | ||
2383 | char * | |
2384 | paddr_d (LONGEST addr) | |
2385 | { | |
2386 | char *paddr_str = get_cell (); | |
2387 | if (addr < 0) | |
2388 | decimal2str (paddr_str, "-", -addr); | |
2389 | else | |
2390 | decimal2str (paddr_str, "", addr); | |
2391 | return paddr_str; | |
2392 | } | |
2393 | ||
5683e87a AC |
2394 | /* eliminate warning from compiler on 32-bit systems */ |
2395 | static int thirty_two = 32; | |
2396 | ||
104c1213 | 2397 | char * |
5683e87a | 2398 | phex (ULONGEST l, int sizeof_l) |
104c1213 | 2399 | { |
45a1e866 | 2400 | char *str; |
5683e87a | 2401 | switch (sizeof_l) |
104c1213 JM |
2402 | { |
2403 | case 8: | |
45a1e866 | 2404 | str = get_cell (); |
5683e87a AC |
2405 | sprintf (str, "%08lx%08lx", |
2406 | (unsigned long) (l >> thirty_two), | |
2407 | (unsigned long) (l & 0xffffffff)); | |
104c1213 JM |
2408 | break; |
2409 | case 4: | |
45a1e866 | 2410 | str = get_cell (); |
5683e87a | 2411 | sprintf (str, "%08lx", (unsigned long) l); |
104c1213 JM |
2412 | break; |
2413 | case 2: | |
45a1e866 | 2414 | str = get_cell (); |
5683e87a | 2415 | sprintf (str, "%04x", (unsigned short) (l & 0xffff)); |
104c1213 JM |
2416 | break; |
2417 | default: | |
45a1e866 | 2418 | str = phex (l, sizeof (l)); |
5683e87a | 2419 | break; |
104c1213 | 2420 | } |
5683e87a | 2421 | return str; |
104c1213 JM |
2422 | } |
2423 | ||
c5aa993b | 2424 | char * |
5683e87a | 2425 | phex_nz (ULONGEST l, int sizeof_l) |
c906108c | 2426 | { |
faf833ca | 2427 | char *str; |
5683e87a | 2428 | switch (sizeof_l) |
c906108c | 2429 | { |
c5aa993b JM |
2430 | case 8: |
2431 | { | |
5683e87a | 2432 | unsigned long high = (unsigned long) (l >> thirty_two); |
faf833ca | 2433 | str = get_cell (); |
c5aa993b | 2434 | if (high == 0) |
5683e87a | 2435 | sprintf (str, "%lx", (unsigned long) (l & 0xffffffff)); |
c5aa993b | 2436 | else |
5683e87a AC |
2437 | sprintf (str, "%lx%08lx", |
2438 | high, (unsigned long) (l & 0xffffffff)); | |
c906108c | 2439 | break; |
c5aa993b JM |
2440 | } |
2441 | case 4: | |
faf833ca | 2442 | str = get_cell (); |
5683e87a | 2443 | sprintf (str, "%lx", (unsigned long) l); |
c5aa993b JM |
2444 | break; |
2445 | case 2: | |
faf833ca | 2446 | str = get_cell (); |
5683e87a | 2447 | sprintf (str, "%x", (unsigned short) (l & 0xffff)); |
c5aa993b JM |
2448 | break; |
2449 | default: | |
faf833ca | 2450 | str = phex_nz (l, sizeof (l)); |
5683e87a | 2451 | break; |
c906108c | 2452 | } |
5683e87a | 2453 | return str; |
c906108c | 2454 | } |
ac2e2ef7 AC |
2455 | |
2456 | ||
2457 | /* Convert to / from the hosts pointer to GDB's internal CORE_ADDR | |
2458 | using the target's conversion routines. */ | |
2459 | CORE_ADDR | |
2460 | host_pointer_to_address (void *ptr) | |
2461 | { | |
090a2205 | 2462 | if (sizeof (ptr) != TYPE_LENGTH (builtin_type_void_data_ptr)) |
8e65ff28 AC |
2463 | internal_error (__FILE__, __LINE__, |
2464 | "core_addr_to_void_ptr: bad cast"); | |
090a2205 | 2465 | return POINTER_TO_ADDRESS (builtin_type_void_data_ptr, &ptr); |
ac2e2ef7 AC |
2466 | } |
2467 | ||
2468 | void * | |
2469 | address_to_host_pointer (CORE_ADDR addr) | |
2470 | { | |
2471 | void *ptr; | |
090a2205 | 2472 | if (sizeof (ptr) != TYPE_LENGTH (builtin_type_void_data_ptr)) |
8e65ff28 AC |
2473 | internal_error (__FILE__, __LINE__, |
2474 | "core_addr_to_void_ptr: bad cast"); | |
090a2205 | 2475 | ADDRESS_TO_POINTER (builtin_type_void_data_ptr, &ptr, addr); |
ac2e2ef7 AC |
2476 | return ptr; |
2477 | } | |
03dd37c3 AC |
2478 | |
2479 | /* Convert a CORE_ADDR into a string. */ | |
2480 | const char * | |
2481 | core_addr_to_string (const CORE_ADDR addr) | |
49b563f9 KS |
2482 | { |
2483 | char *str = get_cell (); | |
2484 | strcpy (str, "0x"); | |
2485 | strcat (str, phex (addr, sizeof (addr))); | |
2486 | return str; | |
2487 | } | |
2488 | ||
2489 | const char * | |
2490 | core_addr_to_string_nz (const CORE_ADDR addr) | |
03dd37c3 AC |
2491 | { |
2492 | char *str = get_cell (); | |
2493 | strcpy (str, "0x"); | |
2494 | strcat (str, phex_nz (addr, sizeof (addr))); | |
2495 | return str; | |
2496 | } | |
2497 | ||
2498 | /* Convert a string back into a CORE_ADDR. */ | |
2499 | CORE_ADDR | |
2500 | string_to_core_addr (const char *my_string) | |
2501 | { | |
2502 | CORE_ADDR addr = 0; | |
2503 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') | |
2504 | { | |
2505 | /* Assume that it is in decimal. */ | |
2506 | int i; | |
2507 | for (i = 2; my_string[i] != '\0'; i++) | |
2508 | { | |
2509 | if (isdigit (my_string[i])) | |
2510 | addr = (my_string[i] - '0') + (addr * 16); | |
2511 | else if (isxdigit (my_string[i])) | |
2512 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); | |
2513 | else | |
2514 | internal_error (__FILE__, __LINE__, "invalid hex"); | |
2515 | } | |
2516 | } | |
2517 | else | |
2518 | { | |
2519 | /* Assume that it is in decimal. */ | |
2520 | int i; | |
2521 | for (i = 0; my_string[i] != '\0'; i++) | |
2522 | { | |
2523 | if (isdigit (my_string[i])) | |
2524 | addr = (my_string[i] - '0') + (addr * 10); | |
2525 | else | |
2526 | internal_error (__FILE__, __LINE__, "invalid decimal"); | |
2527 | } | |
2528 | } | |
2529 | return addr; | |
2530 | } | |
58d370e0 TT |
2531 | |
2532 | char * | |
2533 | gdb_realpath (const char *filename) | |
2534 | { | |
27aac7ff AC |
2535 | #ifdef HAVE_CANONICALIZE_FILE_NAME |
2536 | return canonicalize_file_name (filename); | |
2537 | #elif defined (HAVE_REALPATH) | |
2d1b2124 | 2538 | #if defined (PATH_MAX) |
58d370e0 | 2539 | char buf[PATH_MAX]; |
2d1b2124 AC |
2540 | #elif defined (MAXPATHLEN) |
2541 | char buf[MAXPATHLEN]; | |
b84911e8 RB |
2542 | #elif defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA) |
2543 | char *buf = alloca ((size_t)pathconf ("/", _PC_PATH_MAX)); | |
2d1b2124 AC |
2544 | #else |
2545 | #error "Neither PATH_MAX nor MAXPATHLEN defined" | |
2546 | #endif | |
58d370e0 TT |
2547 | char *rp = realpath (filename, buf); |
2548 | return xstrdup (rp ? rp : filename); | |
2549 | #else | |
2550 | return xstrdup (filename); | |
2551 | #endif | |
2552 | } |