Commit | Line | Data |
---|---|---|
c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
b6ba6518 KB |
2 | Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, |
3 | 1997, 1998, 1999, 2000, 2001 | |
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 SS |
22 | |
23 | #include "defs.h" | |
39424bef | 24 | #include "gdb_assert.h" |
c906108c SS |
25 | #include <ctype.h> |
26 | #include "gdb_string.h" | |
c2c6d25f | 27 | #include "event-top.h" |
c906108c SS |
28 | |
29 | #ifdef HAVE_CURSES_H | |
30 | #include <curses.h> | |
31 | #endif | |
32 | #ifdef HAVE_TERM_H | |
33 | #include <term.h> | |
34 | #endif | |
35 | ||
9d271fd8 AC |
36 | #ifdef __GO32__ |
37 | #include <pc.h> | |
38 | #endif | |
39 | ||
c906108c SS |
40 | /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */ |
41 | #ifdef reg | |
42 | #undef reg | |
43 | #endif | |
44 | ||
042be3a9 | 45 | #include <signal.h> |
c906108c SS |
46 | #include "gdbcmd.h" |
47 | #include "serial.h" | |
48 | #include "bfd.h" | |
49 | #include "target.h" | |
50 | #include "demangle.h" | |
51 | #include "expression.h" | |
52 | #include "language.h" | |
53 | #include "annotate.h" | |
54 | ||
ac2e2ef7 AC |
55 | #include "inferior.h" /* for signed_pointer_to_address */ |
56 | ||
c906108c SS |
57 | #include <readline/readline.h> |
58 | ||
81b8eb80 | 59 | #ifndef MALLOC_INCOMPATIBLE |
3c37485b AC |
60 | #ifdef NEED_DECLARATION_MALLOC |
61 | extern PTR malloc (); | |
62 | #endif | |
0e52036f AC |
63 | #ifdef NEED_DECLARATION_REALLOC |
64 | extern PTR realloc (); | |
65 | #endif | |
81b8eb80 AC |
66 | #ifdef NEED_DECLARATION_FREE |
67 | extern void free (); | |
68 | #endif | |
69 | #endif | |
70 | ||
917317f4 JM |
71 | #undef XMALLOC |
72 | #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE))) | |
73 | ||
c906108c SS |
74 | /* readline defines this. */ |
75 | #undef savestring | |
76 | ||
507f3c78 | 77 | void (*error_begin_hook) (void); |
c906108c | 78 | |
2acceee2 JM |
79 | /* Holds the last error message issued by gdb */ |
80 | ||
d9fcf2fb | 81 | static struct ui_file *gdb_lasterr; |
2acceee2 | 82 | |
c906108c SS |
83 | /* Prototypes for local functions */ |
84 | ||
d9fcf2fb JM |
85 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
86 | va_list, int); | |
c906108c | 87 | |
d9fcf2fb | 88 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c SS |
89 | |
90 | #if defined (USE_MMALLOC) && !defined (NO_MMCHECK) | |
a14ed312 | 91 | static void malloc_botch (void); |
c906108c SS |
92 | #endif |
93 | ||
a14ed312 | 94 | static void prompt_for_continue (void); |
c906108c | 95 | |
a14ed312 | 96 | static void set_width_command (char *, int, struct cmd_list_element *); |
c906108c | 97 | |
a14ed312 | 98 | static void set_width (void); |
c906108c | 99 | |
c906108c SS |
100 | /* Chain of cleanup actions established with make_cleanup, |
101 | to be executed if an error happens. */ | |
102 | ||
c5aa993b JM |
103 | static struct cleanup *cleanup_chain; /* cleaned up after a failed command */ |
104 | static struct cleanup *final_cleanup_chain; /* cleaned up when gdb exits */ | |
105 | static struct cleanup *run_cleanup_chain; /* cleaned up on each 'run' */ | |
106 | static struct cleanup *exec_cleanup_chain; /* cleaned up on each execution command */ | |
6426a772 JM |
107 | /* cleaned up on each error from within an execution command */ |
108 | static struct cleanup *exec_error_cleanup_chain; | |
43ff13b4 JM |
109 | |
110 | /* Pointer to what is left to do for an execution command after the | |
111 | target stops. Used only in asynchronous mode, by targets that | |
112 | support async execution. The finish and until commands use it. So | |
113 | does the target extended-remote command. */ | |
114 | struct continuation *cmd_continuation; | |
c2d11a7d | 115 | struct continuation *intermediate_continuation; |
c906108c SS |
116 | |
117 | /* Nonzero if we have job control. */ | |
118 | ||
119 | int job_control; | |
120 | ||
121 | /* Nonzero means a quit has been requested. */ | |
122 | ||
123 | int quit_flag; | |
124 | ||
125 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
126 | than waiting until QUIT is executed. Be careful in setting this; | |
127 | code which executes with immediate_quit set has to be very careful | |
128 | about being able to deal with being interrupted at any time. It is | |
129 | almost always better to use QUIT; the only exception I can think of | |
130 | is being able to quit out of a system call (using EINTR loses if | |
131 | the SIGINT happens between the previous QUIT and the system call). | |
132 | To immediately quit in the case in which a SIGINT happens between | |
133 | the previous QUIT and setting immediate_quit (desirable anytime we | |
134 | expect to block), call QUIT after setting immediate_quit. */ | |
135 | ||
136 | int immediate_quit; | |
137 | ||
138 | /* Nonzero means that encoded C++ names should be printed out in their | |
139 | C++ form rather than raw. */ | |
140 | ||
141 | int demangle = 1; | |
142 | ||
143 | /* Nonzero means that encoded C++ names should be printed out in their | |
144 | C++ form even in assembler language displays. If this is set, but | |
145 | DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */ | |
146 | ||
147 | int asm_demangle = 0; | |
148 | ||
149 | /* Nonzero means that strings with character values >0x7F should be printed | |
150 | as octal escapes. Zero means just print the value (e.g. it's an | |
151 | international character, and the terminal or window can cope.) */ | |
152 | ||
153 | int sevenbit_strings = 0; | |
154 | ||
155 | /* String to be printed before error messages, if any. */ | |
156 | ||
157 | char *error_pre_print; | |
158 | ||
159 | /* String to be printed before quit messages, if any. */ | |
160 | ||
161 | char *quit_pre_print; | |
162 | ||
163 | /* String to be printed before warning messages, if any. */ | |
164 | ||
165 | char *warning_pre_print = "\nwarning: "; | |
166 | ||
167 | int pagination_enabled = 1; | |
c906108c | 168 | \f |
c5aa993b | 169 | |
c906108c SS |
170 | /* Add a new cleanup to the cleanup_chain, |
171 | and return the previous chain pointer | |
172 | to be passed later to do_cleanups or discard_cleanups. | |
173 | Args are FUNCTION to clean up with, and ARG to pass to it. */ | |
174 | ||
175 | struct cleanup * | |
e4005526 | 176 | make_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 177 | { |
c5aa993b | 178 | return make_my_cleanup (&cleanup_chain, function, arg); |
c906108c SS |
179 | } |
180 | ||
181 | struct cleanup * | |
e4005526 | 182 | make_final_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 183 | { |
c5aa993b | 184 | return make_my_cleanup (&final_cleanup_chain, function, arg); |
c906108c | 185 | } |
7a292a7a | 186 | |
c906108c | 187 | struct cleanup * |
e4005526 | 188 | make_run_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 189 | { |
c5aa993b | 190 | return make_my_cleanup (&run_cleanup_chain, function, arg); |
c906108c | 191 | } |
7a292a7a | 192 | |
43ff13b4 | 193 | struct cleanup * |
e4005526 | 194 | make_exec_cleanup (make_cleanup_ftype *function, void *arg) |
43ff13b4 | 195 | { |
c5aa993b | 196 | return make_my_cleanup (&exec_cleanup_chain, function, arg); |
43ff13b4 JM |
197 | } |
198 | ||
6426a772 | 199 | struct cleanup * |
e4005526 | 200 | make_exec_error_cleanup (make_cleanup_ftype *function, void *arg) |
6426a772 JM |
201 | { |
202 | return make_my_cleanup (&exec_error_cleanup_chain, function, arg); | |
203 | } | |
204 | ||
7a292a7a | 205 | static void |
fba45db2 | 206 | do_freeargv (void *arg) |
7a292a7a | 207 | { |
c5aa993b | 208 | freeargv ((char **) arg); |
7a292a7a SS |
209 | } |
210 | ||
211 | struct cleanup * | |
fba45db2 | 212 | make_cleanup_freeargv (char **arg) |
7a292a7a SS |
213 | { |
214 | return make_my_cleanup (&cleanup_chain, do_freeargv, arg); | |
215 | } | |
216 | ||
5c65bbb6 AC |
217 | static void |
218 | do_bfd_close_cleanup (void *arg) | |
219 | { | |
220 | bfd_close (arg); | |
221 | } | |
222 | ||
223 | struct cleanup * | |
224 | make_cleanup_bfd_close (bfd *abfd) | |
225 | { | |
226 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
227 | } | |
228 | ||
f5ff8c83 AC |
229 | static void |
230 | do_close_cleanup (void *arg) | |
231 | { | |
f042532c AC |
232 | int *fd = arg; |
233 | close (*fd); | |
234 | xfree (fd); | |
f5ff8c83 AC |
235 | } |
236 | ||
237 | struct cleanup * | |
238 | make_cleanup_close (int fd) | |
239 | { | |
f042532c AC |
240 | int *saved_fd = xmalloc (sizeof (fd)); |
241 | *saved_fd = fd; | |
242 | return make_cleanup (do_close_cleanup, saved_fd); | |
f5ff8c83 AC |
243 | } |
244 | ||
11cf8741 | 245 | static void |
d9fcf2fb | 246 | do_ui_file_delete (void *arg) |
11cf8741 | 247 | { |
d9fcf2fb | 248 | ui_file_delete (arg); |
11cf8741 JM |
249 | } |
250 | ||
251 | struct cleanup * | |
d9fcf2fb | 252 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 253 | { |
d9fcf2fb | 254 | return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg); |
11cf8741 JM |
255 | } |
256 | ||
c906108c | 257 | struct cleanup * |
e4005526 AC |
258 | make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function, |
259 | void *arg) | |
c906108c SS |
260 | { |
261 | register struct cleanup *new | |
c5aa993b | 262 | = (struct cleanup *) xmalloc (sizeof (struct cleanup)); |
c906108c SS |
263 | register struct cleanup *old_chain = *pmy_chain; |
264 | ||
265 | new->next = *pmy_chain; | |
266 | new->function = function; | |
267 | new->arg = arg; | |
268 | *pmy_chain = new; | |
269 | ||
270 | return old_chain; | |
271 | } | |
272 | ||
273 | /* Discard cleanups and do the actions they describe | |
274 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
275 | ||
276 | void | |
fba45db2 | 277 | do_cleanups (register struct cleanup *old_chain) |
c906108c | 278 | { |
c5aa993b | 279 | do_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
280 | } |
281 | ||
282 | void | |
fba45db2 | 283 | do_final_cleanups (register struct cleanup *old_chain) |
c906108c | 284 | { |
c5aa993b | 285 | do_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
286 | } |
287 | ||
288 | void | |
fba45db2 | 289 | do_run_cleanups (register struct cleanup *old_chain) |
c906108c | 290 | { |
c5aa993b | 291 | do_my_cleanups (&run_cleanup_chain, old_chain); |
c906108c SS |
292 | } |
293 | ||
43ff13b4 | 294 | void |
fba45db2 | 295 | do_exec_cleanups (register struct cleanup *old_chain) |
43ff13b4 | 296 | { |
c5aa993b | 297 | do_my_cleanups (&exec_cleanup_chain, old_chain); |
43ff13b4 JM |
298 | } |
299 | ||
6426a772 | 300 | void |
fba45db2 | 301 | do_exec_error_cleanups (register struct cleanup *old_chain) |
6426a772 JM |
302 | { |
303 | do_my_cleanups (&exec_error_cleanup_chain, old_chain); | |
304 | } | |
305 | ||
c906108c | 306 | void |
fba45db2 KB |
307 | do_my_cleanups (register struct cleanup **pmy_chain, |
308 | register struct cleanup *old_chain) | |
c906108c SS |
309 | { |
310 | register struct cleanup *ptr; | |
311 | while ((ptr = *pmy_chain) != old_chain) | |
312 | { | |
313 | *pmy_chain = ptr->next; /* Do this first incase recursion */ | |
314 | (*ptr->function) (ptr->arg); | |
b8c9b27d | 315 | xfree (ptr); |
c906108c SS |
316 | } |
317 | } | |
318 | ||
319 | /* Discard cleanups, not doing the actions they describe, | |
320 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
321 | ||
322 | void | |
fba45db2 | 323 | discard_cleanups (register struct cleanup *old_chain) |
c906108c | 324 | { |
c5aa993b | 325 | discard_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
326 | } |
327 | ||
328 | void | |
fba45db2 | 329 | discard_final_cleanups (register struct cleanup *old_chain) |
c906108c | 330 | { |
c5aa993b | 331 | discard_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
332 | } |
333 | ||
6426a772 | 334 | void |
fba45db2 | 335 | discard_exec_error_cleanups (register struct cleanup *old_chain) |
6426a772 JM |
336 | { |
337 | discard_my_cleanups (&exec_error_cleanup_chain, old_chain); | |
338 | } | |
339 | ||
c906108c | 340 | void |
fba45db2 KB |
341 | discard_my_cleanups (register struct cleanup **pmy_chain, |
342 | register struct cleanup *old_chain) | |
c906108c SS |
343 | { |
344 | register struct cleanup *ptr; | |
345 | while ((ptr = *pmy_chain) != old_chain) | |
346 | { | |
347 | *pmy_chain = ptr->next; | |
b8c9b27d | 348 | xfree (ptr); |
c906108c SS |
349 | } |
350 | } | |
351 | ||
352 | /* Set the cleanup_chain to 0, and return the old cleanup chain. */ | |
353 | struct cleanup * | |
fba45db2 | 354 | save_cleanups (void) |
c906108c | 355 | { |
c5aa993b | 356 | return save_my_cleanups (&cleanup_chain); |
c906108c SS |
357 | } |
358 | ||
359 | struct cleanup * | |
fba45db2 | 360 | save_final_cleanups (void) |
c906108c | 361 | { |
c5aa993b | 362 | return save_my_cleanups (&final_cleanup_chain); |
c906108c SS |
363 | } |
364 | ||
365 | struct cleanup * | |
fba45db2 | 366 | save_my_cleanups (struct cleanup **pmy_chain) |
c906108c SS |
367 | { |
368 | struct cleanup *old_chain = *pmy_chain; | |
369 | ||
370 | *pmy_chain = 0; | |
371 | return old_chain; | |
372 | } | |
373 | ||
374 | /* Restore the cleanup chain from a previously saved chain. */ | |
375 | void | |
fba45db2 | 376 | restore_cleanups (struct cleanup *chain) |
c906108c | 377 | { |
c5aa993b | 378 | restore_my_cleanups (&cleanup_chain, chain); |
c906108c SS |
379 | } |
380 | ||
381 | void | |
fba45db2 | 382 | restore_final_cleanups (struct cleanup *chain) |
c906108c | 383 | { |
c5aa993b | 384 | restore_my_cleanups (&final_cleanup_chain, chain); |
c906108c SS |
385 | } |
386 | ||
387 | void | |
fba45db2 | 388 | restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain) |
c906108c SS |
389 | { |
390 | *pmy_chain = chain; | |
391 | } | |
392 | ||
393 | /* This function is useful for cleanups. | |
394 | Do | |
395 | ||
c5aa993b JM |
396 | foo = xmalloc (...); |
397 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
398 | |
399 | to arrange to free the object thus allocated. */ | |
400 | ||
401 | void | |
2f9429ae | 402 | free_current_contents (void *ptr) |
c906108c | 403 | { |
2f9429ae | 404 | void **location = ptr; |
e2f9c474 | 405 | if (location == NULL) |
8e65ff28 AC |
406 | internal_error (__FILE__, __LINE__, |
407 | "free_current_contents: NULL pointer"); | |
2f9429ae | 408 | if (*location != NULL) |
e2f9c474 | 409 | { |
b8c9b27d | 410 | xfree (*location); |
e2f9c474 AC |
411 | *location = NULL; |
412 | } | |
c906108c SS |
413 | } |
414 | ||
415 | /* Provide a known function that does nothing, to use as a base for | |
416 | for a possibly long chain of cleanups. This is useful where we | |
417 | use the cleanup chain for handling normal cleanups as well as dealing | |
418 | with cleanups that need to be done as a result of a call to error(). | |
419 | In such cases, we may not be certain where the first cleanup is, unless | |
420 | we have a do-nothing one to always use as the base. */ | |
421 | ||
422 | /* ARGSUSED */ | |
423 | void | |
e4005526 | 424 | null_cleanup (void *arg) |
c906108c SS |
425 | { |
426 | } | |
427 | ||
74f832da | 428 | /* Add a continuation to the continuation list, the global list |
c2d11a7d | 429 | cmd_continuation. The new continuation will be added at the front.*/ |
43ff13b4 | 430 | void |
74f832da KB |
431 | add_continuation (void (*continuation_hook) (struct continuation_arg *), |
432 | struct continuation_arg *arg_list) | |
43ff13b4 | 433 | { |
c5aa993b | 434 | struct continuation *continuation_ptr; |
43ff13b4 | 435 | |
c5aa993b JM |
436 | continuation_ptr = (struct continuation *) xmalloc (sizeof (struct continuation)); |
437 | continuation_ptr->continuation_hook = continuation_hook; | |
438 | continuation_ptr->arg_list = arg_list; | |
439 | continuation_ptr->next = cmd_continuation; | |
440 | cmd_continuation = continuation_ptr; | |
43ff13b4 JM |
441 | } |
442 | ||
443 | /* Walk down the cmd_continuation list, and execute all the | |
c2d11a7d JM |
444 | continuations. There is a problem though. In some cases new |
445 | continuations may be added while we are in the middle of this | |
446 | loop. If this happens they will be added in the front, and done | |
447 | before we have a chance of exhausting those that were already | |
448 | there. We need to then save the beginning of the list in a pointer | |
449 | and do the continuations from there on, instead of using the | |
450 | global beginning of list as our iteration pointer.*/ | |
c5aa993b | 451 | void |
fba45db2 | 452 | do_all_continuations (void) |
c2d11a7d JM |
453 | { |
454 | struct continuation *continuation_ptr; | |
455 | struct continuation *saved_continuation; | |
456 | ||
457 | /* Copy the list header into another pointer, and set the global | |
458 | list header to null, so that the global list can change as a side | |
459 | effect of invoking the continuations and the processing of | |
460 | the preexisting continuations will not be affected. */ | |
461 | continuation_ptr = cmd_continuation; | |
462 | cmd_continuation = NULL; | |
463 | ||
464 | /* Work now on the list we have set aside. */ | |
465 | while (continuation_ptr) | |
466 | { | |
467 | (continuation_ptr->continuation_hook) (continuation_ptr->arg_list); | |
468 | saved_continuation = continuation_ptr; | |
469 | continuation_ptr = continuation_ptr->next; | |
b8c9b27d | 470 | xfree (saved_continuation); |
c2d11a7d JM |
471 | } |
472 | } | |
473 | ||
474 | /* Walk down the cmd_continuation list, and get rid of all the | |
475 | continuations. */ | |
476 | void | |
fba45db2 | 477 | discard_all_continuations (void) |
43ff13b4 | 478 | { |
c5aa993b | 479 | struct continuation *continuation_ptr; |
43ff13b4 | 480 | |
c5aa993b JM |
481 | while (cmd_continuation) |
482 | { | |
c5aa993b JM |
483 | continuation_ptr = cmd_continuation; |
484 | cmd_continuation = continuation_ptr->next; | |
b8c9b27d | 485 | xfree (continuation_ptr); |
c5aa993b | 486 | } |
43ff13b4 | 487 | } |
c2c6d25f | 488 | |
57e687d9 | 489 | /* Add a continuation to the continuation list, the global list |
c2d11a7d JM |
490 | intermediate_continuation. The new continuation will be added at the front.*/ |
491 | void | |
74f832da KB |
492 | add_intermediate_continuation (void (*continuation_hook) |
493 | (struct continuation_arg *), | |
494 | struct continuation_arg *arg_list) | |
c2d11a7d JM |
495 | { |
496 | struct continuation *continuation_ptr; | |
497 | ||
498 | continuation_ptr = (struct continuation *) xmalloc (sizeof (struct continuation)); | |
499 | continuation_ptr->continuation_hook = continuation_hook; | |
500 | continuation_ptr->arg_list = arg_list; | |
501 | continuation_ptr->next = intermediate_continuation; | |
502 | intermediate_continuation = continuation_ptr; | |
503 | } | |
504 | ||
505 | /* Walk down the cmd_continuation list, and execute all the | |
506 | continuations. There is a problem though. In some cases new | |
507 | continuations may be added while we are in the middle of this | |
508 | loop. If this happens they will be added in the front, and done | |
509 | before we have a chance of exhausting those that were already | |
510 | there. We need to then save the beginning of the list in a pointer | |
511 | and do the continuations from there on, instead of using the | |
512 | global beginning of list as our iteration pointer.*/ | |
513 | void | |
fba45db2 | 514 | do_all_intermediate_continuations (void) |
c2d11a7d JM |
515 | { |
516 | struct continuation *continuation_ptr; | |
517 | struct continuation *saved_continuation; | |
518 | ||
519 | /* Copy the list header into another pointer, and set the global | |
520 | list header to null, so that the global list can change as a side | |
521 | effect of invoking the continuations and the processing of | |
522 | the preexisting continuations will not be affected. */ | |
523 | continuation_ptr = intermediate_continuation; | |
524 | intermediate_continuation = NULL; | |
525 | ||
526 | /* Work now on the list we have set aside. */ | |
527 | while (continuation_ptr) | |
528 | { | |
529 | (continuation_ptr->continuation_hook) (continuation_ptr->arg_list); | |
530 | saved_continuation = continuation_ptr; | |
531 | continuation_ptr = continuation_ptr->next; | |
b8c9b27d | 532 | xfree (saved_continuation); |
c2d11a7d JM |
533 | } |
534 | } | |
535 | ||
c2c6d25f JM |
536 | /* Walk down the cmd_continuation list, and get rid of all the |
537 | continuations. */ | |
538 | void | |
fba45db2 | 539 | discard_all_intermediate_continuations (void) |
c2c6d25f JM |
540 | { |
541 | struct continuation *continuation_ptr; | |
542 | ||
c2d11a7d | 543 | while (intermediate_continuation) |
c2c6d25f | 544 | { |
c2d11a7d JM |
545 | continuation_ptr = intermediate_continuation; |
546 | intermediate_continuation = continuation_ptr->next; | |
b8c9b27d | 547 | xfree (continuation_ptr); |
c2c6d25f JM |
548 | } |
549 | } | |
550 | ||
c906108c | 551 | \f |
c5aa993b | 552 | |
c906108c SS |
553 | /* Print a warning message. Way to use this is to call warning_begin, |
554 | output the warning message (use unfiltered output to gdb_stderr), | |
555 | ending in a newline. There is not currently a warning_end that you | |
556 | call afterwards, but such a thing might be added if it is useful | |
557 | for a GUI to separate warning messages from other output. | |
558 | ||
559 | FIXME: Why do warnings use unfiltered output and errors filtered? | |
560 | Is this anything other than a historical accident? */ | |
561 | ||
562 | void | |
fba45db2 | 563 | warning_begin (void) |
c906108c SS |
564 | { |
565 | target_terminal_ours (); | |
c5aa993b | 566 | wrap_here (""); /* Force out any buffered output */ |
c906108c SS |
567 | gdb_flush (gdb_stdout); |
568 | if (warning_pre_print) | |
569 | fprintf_unfiltered (gdb_stderr, warning_pre_print); | |
570 | } | |
571 | ||
572 | /* Print a warning message. | |
573 | The first argument STRING is the warning message, used as a fprintf string, | |
574 | and the remaining args are passed as arguments to it. | |
575 | The primary difference between warnings and errors is that a warning | |
576 | does not force the return to command level. */ | |
577 | ||
c906108c | 578 | void |
c5aa993b | 579 | warning (const char *string,...) |
c906108c SS |
580 | { |
581 | va_list args; | |
c906108c | 582 | va_start (args, string); |
c906108c SS |
583 | if (warning_hook) |
584 | (*warning_hook) (string, args); | |
585 | else | |
c5aa993b JM |
586 | { |
587 | warning_begin (); | |
588 | vfprintf_unfiltered (gdb_stderr, string, args); | |
589 | fprintf_unfiltered (gdb_stderr, "\n"); | |
590 | va_end (args); | |
591 | } | |
c906108c SS |
592 | } |
593 | ||
594 | /* Start the printing of an error message. Way to use this is to call | |
595 | this, output the error message (use filtered output to gdb_stderr | |
596 | (FIXME: Some callers, like memory_error, use gdb_stdout)), ending | |
597 | in a newline, and then call return_to_top_level (RETURN_ERROR). | |
598 | error() provides a convenient way to do this for the special case | |
599 | that the error message can be formatted with a single printf call, | |
600 | but this is more general. */ | |
601 | void | |
fba45db2 | 602 | error_begin (void) |
c906108c SS |
603 | { |
604 | if (error_begin_hook) | |
605 | error_begin_hook (); | |
606 | ||
607 | target_terminal_ours (); | |
c5aa993b | 608 | wrap_here (""); /* Force out any buffered output */ |
c906108c SS |
609 | gdb_flush (gdb_stdout); |
610 | ||
611 | annotate_error_begin (); | |
612 | ||
613 | if (error_pre_print) | |
614 | fprintf_filtered (gdb_stderr, error_pre_print); | |
615 | } | |
616 | ||
617 | /* Print an error message and return to command level. | |
618 | The first argument STRING is the error message, used as a fprintf string, | |
619 | and the remaining args are passed as arguments to it. */ | |
620 | ||
4ce44c66 JM |
621 | NORETURN void |
622 | verror (const char *string, va_list args) | |
623 | { | |
c2d11a7d JM |
624 | char *err_string; |
625 | struct cleanup *err_string_cleanup; | |
4ce44c66 | 626 | /* FIXME: cagney/1999-11-10: All error calls should come here. |
e26cc349 | 627 | Unfortunately some code uses the sequence: error_begin(); print |
4ce44c66 JM |
628 | error message; return_to_top_level. That code should be |
629 | flushed. */ | |
630 | error_begin (); | |
c2d11a7d JM |
631 | /* NOTE: It's tempting to just do the following... |
632 | vfprintf_filtered (gdb_stderr, string, args); | |
633 | and then follow with a similar looking statement to cause the message | |
634 | to also go to gdb_lasterr. But if we do this, we'll be traversing the | |
635 | va_list twice which works on some platforms and fails miserably on | |
636 | others. */ | |
637 | /* Save it as the last error */ | |
d9fcf2fb | 638 | ui_file_rewind (gdb_lasterr); |
4ce44c66 | 639 | vfprintf_filtered (gdb_lasterr, string, args); |
c2d11a7d JM |
640 | /* Retrieve the last error and print it to gdb_stderr */ |
641 | err_string = error_last_message (); | |
b8c9b27d | 642 | err_string_cleanup = make_cleanup (xfree, err_string); |
c2d11a7d JM |
643 | fputs_filtered (err_string, gdb_stderr); |
644 | fprintf_filtered (gdb_stderr, "\n"); | |
645 | do_cleanups (err_string_cleanup); | |
4ce44c66 JM |
646 | return_to_top_level (RETURN_ERROR); |
647 | } | |
648 | ||
c906108c | 649 | NORETURN void |
c5aa993b | 650 | error (const char *string,...) |
c906108c SS |
651 | { |
652 | va_list args; | |
c906108c | 653 | va_start (args, string); |
4ce44c66 JM |
654 | verror (string, args); |
655 | va_end (args); | |
c906108c SS |
656 | } |
657 | ||
2acceee2 | 658 | NORETURN void |
d9fcf2fb | 659 | error_stream (struct ui_file *stream) |
2acceee2 | 660 | { |
4ce44c66 | 661 | long size; |
d9fcf2fb | 662 | char *msg = ui_file_xstrdup (stream, &size); |
b8c9b27d | 663 | make_cleanup (xfree, msg); |
4ce44c66 | 664 | error ("%s", msg); |
2acceee2 JM |
665 | } |
666 | ||
667 | /* Get the last error message issued by gdb */ | |
668 | ||
669 | char * | |
670 | error_last_message (void) | |
671 | { | |
4ce44c66 | 672 | long len; |
d9fcf2fb | 673 | return ui_file_xstrdup (gdb_lasterr, &len); |
2acceee2 | 674 | } |
4ce44c66 | 675 | |
2acceee2 JM |
676 | /* This is to be called by main() at the very beginning */ |
677 | ||
678 | void | |
679 | error_init (void) | |
680 | { | |
4ce44c66 | 681 | gdb_lasterr = mem_fileopen (); |
2acceee2 | 682 | } |
c906108c | 683 | |
96baa820 JM |
684 | /* Print a message reporting an internal error. Ask the user if they |
685 | want to continue, dump core, or just exit. */ | |
c906108c | 686 | |
c906108c | 687 | NORETURN void |
8e65ff28 AC |
688 | internal_verror (const char *file, int line, |
689 | const char *fmt, va_list ap) | |
c906108c | 690 | { |
96baa820 JM |
691 | static char msg[] = "Internal GDB error: recursive internal error.\n"; |
692 | static int dejavu = 0; | |
7be570e7 JM |
693 | int continue_p; |
694 | int dump_core_p; | |
c906108c | 695 | |
96baa820 JM |
696 | /* don't allow infinite error recursion. */ |
697 | switch (dejavu) | |
698 | { | |
699 | case 0: | |
700 | dejavu = 1; | |
701 | break; | |
702 | case 1: | |
703 | dejavu = 2; | |
704 | fputs_unfiltered (msg, gdb_stderr); | |
5c7dd748 | 705 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
96baa820 JM |
706 | default: |
707 | dejavu = 3; | |
708 | write (STDERR_FILENO, msg, sizeof (msg)); | |
709 | exit (1); | |
710 | } | |
c906108c | 711 | |
96baa820 | 712 | /* Try to get the message out */ |
4261bedc | 713 | target_terminal_ours (); |
8e65ff28 | 714 | fprintf_unfiltered (gdb_stderr, "%s:%d: gdb-internal-error: ", file, line); |
4ce44c66 | 715 | vfprintf_unfiltered (gdb_stderr, fmt, ap); |
96baa820 | 716 | fputs_unfiltered ("\n", gdb_stderr); |
c906108c | 717 | |
7be570e7 JM |
718 | /* Default (no case) is to quit GDB. When in batch mode this |
719 | lessens the likelhood of GDB going into an infinate loop. */ | |
720 | continue_p = query ("\ | |
62fd9fad | 721 | An internal GDB error was detected. This may make further\n\ |
7be570e7 JM |
722 | debugging unreliable. Continue this debugging session? "); |
723 | ||
724 | /* Default (no case) is to not dump core. Lessen the chance of GDB | |
725 | leaving random core files around. */ | |
726 | dump_core_p = query ("\ | |
727 | Create a core file containing the current state of GDB? "); | |
728 | ||
729 | if (continue_p) | |
730 | { | |
731 | if (dump_core_p) | |
732 | { | |
733 | if (fork () == 0) | |
5c7dd748 | 734 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
7be570e7 JM |
735 | } |
736 | } | |
737 | else | |
738 | { | |
739 | if (dump_core_p) | |
5c7dd748 | 740 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
7be570e7 JM |
741 | else |
742 | exit (1); | |
743 | } | |
96baa820 JM |
744 | |
745 | dejavu = 0; | |
746 | return_to_top_level (RETURN_ERROR); | |
c906108c SS |
747 | } |
748 | ||
4ce44c66 | 749 | NORETURN void |
8e65ff28 | 750 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
751 | { |
752 | va_list ap; | |
753 | va_start (ap, string); | |
4261bedc | 754 | |
8e65ff28 | 755 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
756 | va_end (ap); |
757 | } | |
758 | ||
c906108c SS |
759 | /* The strerror() function can return NULL for errno values that are |
760 | out of range. Provide a "safe" version that always returns a | |
761 | printable string. */ | |
762 | ||
763 | char * | |
fba45db2 | 764 | safe_strerror (int errnum) |
c906108c SS |
765 | { |
766 | char *msg; | |
767 | static char buf[32]; | |
768 | ||
769 | if ((msg = strerror (errnum)) == NULL) | |
770 | { | |
771 | sprintf (buf, "(undocumented errno %d)", errnum); | |
772 | msg = buf; | |
773 | } | |
774 | return (msg); | |
775 | } | |
776 | ||
c906108c SS |
777 | /* Print the system error message for errno, and also mention STRING |
778 | as the file name for which the error was encountered. | |
779 | Then return to command level. */ | |
780 | ||
781 | NORETURN void | |
fba45db2 | 782 | perror_with_name (char *string) |
c906108c SS |
783 | { |
784 | char *err; | |
785 | char *combined; | |
786 | ||
787 | err = safe_strerror (errno); | |
788 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
789 | strcpy (combined, string); | |
790 | strcat (combined, ": "); | |
791 | strcat (combined, err); | |
792 | ||
793 | /* I understand setting these is a matter of taste. Still, some people | |
794 | may clear errno but not know about bfd_error. Doing this here is not | |
795 | unreasonable. */ | |
796 | bfd_set_error (bfd_error_no_error); | |
797 | errno = 0; | |
798 | ||
c5aa993b | 799 | error ("%s.", combined); |
c906108c SS |
800 | } |
801 | ||
802 | /* Print the system error message for ERRCODE, and also mention STRING | |
803 | as the file name for which the error was encountered. */ | |
804 | ||
805 | void | |
fba45db2 | 806 | print_sys_errmsg (char *string, int errcode) |
c906108c SS |
807 | { |
808 | char *err; | |
809 | char *combined; | |
810 | ||
811 | err = safe_strerror (errcode); | |
812 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
813 | strcpy (combined, string); | |
814 | strcat (combined, ": "); | |
815 | strcat (combined, err); | |
816 | ||
817 | /* We want anything which was printed on stdout to come out first, before | |
818 | this message. */ | |
819 | gdb_flush (gdb_stdout); | |
820 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
821 | } | |
822 | ||
823 | /* Control C eventually causes this to be called, at a convenient time. */ | |
824 | ||
825 | void | |
fba45db2 | 826 | quit (void) |
c906108c | 827 | { |
819cc324 | 828 | struct serial *gdb_stdout_serial = serial_fdopen (1); |
c906108c SS |
829 | |
830 | target_terminal_ours (); | |
831 | ||
832 | /* We want all output to appear now, before we print "Quit". We | |
833 | have 3 levels of buffering we have to flush (it's possible that | |
834 | some of these should be changed to flush the lower-level ones | |
835 | too): */ | |
836 | ||
837 | /* 1. The _filtered buffer. */ | |
c5aa993b | 838 | wrap_here ((char *) 0); |
c906108c SS |
839 | |
840 | /* 2. The stdio buffer. */ | |
841 | gdb_flush (gdb_stdout); | |
842 | gdb_flush (gdb_stderr); | |
843 | ||
844 | /* 3. The system-level buffer. */ | |
2cd58942 AC |
845 | serial_drain_output (gdb_stdout_serial); |
846 | serial_un_fdopen (gdb_stdout_serial); | |
c906108c SS |
847 | |
848 | annotate_error_begin (); | |
849 | ||
850 | /* Don't use *_filtered; we don't want to prompt the user to continue. */ | |
851 | if (quit_pre_print) | |
852 | fprintf_unfiltered (gdb_stderr, quit_pre_print); | |
853 | ||
7be570e7 JM |
854 | #ifdef __MSDOS__ |
855 | /* No steenking SIGINT will ever be coming our way when the | |
856 | program is resumed. Don't lie. */ | |
857 | fprintf_unfiltered (gdb_stderr, "Quit\n"); | |
858 | #else | |
c906108c | 859 | if (job_control |
c5aa993b JM |
860 | /* If there is no terminal switching for this target, then we can't |
861 | possibly get screwed by the lack of job control. */ | |
c906108c SS |
862 | || current_target.to_terminal_ours == NULL) |
863 | fprintf_unfiltered (gdb_stderr, "Quit\n"); | |
864 | else | |
865 | fprintf_unfiltered (gdb_stderr, | |
c5aa993b | 866 | "Quit (expect signal SIGINT when the program is resumed)\n"); |
7be570e7 | 867 | #endif |
c906108c SS |
868 | return_to_top_level (RETURN_QUIT); |
869 | } | |
870 | ||
c906108c | 871 | /* Control C comes here */ |
c906108c | 872 | void |
fba45db2 | 873 | request_quit (int signo) |
c906108c SS |
874 | { |
875 | quit_flag = 1; | |
876 | /* Restore the signal handler. Harmless with BSD-style signals, needed | |
877 | for System V-style signals. So just always do it, rather than worrying | |
878 | about USG defines and stuff like that. */ | |
879 | signal (signo, request_quit); | |
880 | ||
881 | #ifdef REQUEST_QUIT | |
882 | REQUEST_QUIT; | |
883 | #else | |
c5aa993b | 884 | if (immediate_quit) |
c906108c SS |
885 | quit (); |
886 | #endif | |
887 | } | |
c906108c SS |
888 | \f |
889 | /* Memory management stuff (malloc friends). */ | |
890 | ||
c906108c SS |
891 | #if !defined (USE_MMALLOC) |
892 | ||
c0e61796 AC |
893 | /* NOTE: These must use PTR so that their definition matches the |
894 | declaration found in "mmalloc.h". */ | |
ed9a39eb | 895 | |
c906108c | 896 | PTR |
fba45db2 | 897 | mmalloc (PTR md, size_t size) |
c906108c | 898 | { |
c0e61796 | 899 | return malloc (size); /* NOTE: GDB's only call to malloc() */ |
c906108c SS |
900 | } |
901 | ||
902 | PTR | |
fba45db2 | 903 | mrealloc (PTR md, PTR ptr, size_t size) |
c906108c | 904 | { |
c5aa993b | 905 | if (ptr == 0) /* Guard against old realloc's */ |
c0e61796 | 906 | return mmalloc (md, size); |
c906108c | 907 | else |
c0e61796 AC |
908 | return realloc (ptr, size); /* NOTE: GDB's only call to ralloc() */ |
909 | } | |
910 | ||
911 | PTR | |
912 | mcalloc (PTR md, size_t number, size_t size) | |
913 | { | |
914 | return calloc (number, size); /* NOTE: GDB's only call to calloc() */ | |
c906108c SS |
915 | } |
916 | ||
917 | void | |
fba45db2 | 918 | mfree (PTR md, PTR ptr) |
c906108c | 919 | { |
c0e61796 | 920 | free (ptr); /* NOTE: GDB's only call to free() */ |
c906108c SS |
921 | } |
922 | ||
c5aa993b | 923 | #endif /* USE_MMALLOC */ |
c906108c SS |
924 | |
925 | #if !defined (USE_MMALLOC) || defined (NO_MMCHECK) | |
926 | ||
927 | void | |
082faf24 | 928 | init_malloc (void *md) |
c906108c SS |
929 | { |
930 | } | |
931 | ||
932 | #else /* Have mmalloc and want corruption checking */ | |
933 | ||
934 | static void | |
fba45db2 | 935 | malloc_botch (void) |
c906108c | 936 | { |
96baa820 | 937 | fprintf_unfiltered (gdb_stderr, "Memory corruption\n"); |
e1e9e218 | 938 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
939 | } |
940 | ||
941 | /* Attempt to install hooks in mmalloc/mrealloc/mfree for the heap specified | |
942 | by MD, to detect memory corruption. Note that MD may be NULL to specify | |
943 | the default heap that grows via sbrk. | |
944 | ||
945 | Note that for freshly created regions, we must call mmcheckf prior to any | |
946 | mallocs in the region. Otherwise, any region which was allocated prior to | |
947 | installing the checking hooks, which is later reallocated or freed, will | |
948 | fail the checks! The mmcheck function only allows initial hooks to be | |
949 | installed before the first mmalloc. However, anytime after we have called | |
950 | mmcheck the first time to install the checking hooks, we can call it again | |
951 | to update the function pointer to the memory corruption handler. | |
952 | ||
953 | Returns zero on failure, non-zero on success. */ | |
954 | ||
955 | #ifndef MMCHECK_FORCE | |
956 | #define MMCHECK_FORCE 0 | |
957 | #endif | |
958 | ||
959 | void | |
082faf24 | 960 | init_malloc (void *md) |
c906108c SS |
961 | { |
962 | if (!mmcheckf (md, malloc_botch, MMCHECK_FORCE)) | |
963 | { | |
964 | /* Don't use warning(), which relies on current_target being set | |
c5aa993b JM |
965 | to something other than dummy_target, until after |
966 | initialize_all_files(). */ | |
c906108c SS |
967 | |
968 | fprintf_unfiltered | |
969 | (gdb_stderr, "warning: failed to install memory consistency checks; "); | |
970 | fprintf_unfiltered | |
971 | (gdb_stderr, "configuration should define NO_MMCHECK or MMCHECK_FORCE\n"); | |
972 | } | |
973 | ||
974 | mmtrace (); | |
975 | } | |
976 | ||
977 | #endif /* Have mmalloc and want corruption checking */ | |
978 | ||
979 | /* Called when a memory allocation fails, with the number of bytes of | |
980 | memory requested in SIZE. */ | |
981 | ||
982 | NORETURN void | |
fba45db2 | 983 | nomem (long size) |
c906108c SS |
984 | { |
985 | if (size > 0) | |
986 | { | |
8e65ff28 AC |
987 | internal_error (__FILE__, __LINE__, |
988 | "virtual memory exhausted: can't allocate %ld bytes.", size); | |
c906108c SS |
989 | } |
990 | else | |
991 | { | |
8e65ff28 AC |
992 | internal_error (__FILE__, __LINE__, |
993 | "virtual memory exhausted."); | |
c906108c SS |
994 | } |
995 | } | |
996 | ||
c0e61796 | 997 | /* The xmmalloc() family of memory management routines. |
c906108c | 998 | |
c0e61796 AC |
999 | These are are like the mmalloc() family except that they implement |
1000 | consistent semantics and guard against typical memory management | |
1001 | problems: if a malloc fails, an internal error is thrown; if | |
1002 | free(NULL) is called, it is ignored; if *alloc(0) is called, NULL | |
1003 | is returned. | |
1004 | ||
1005 | All these routines are implemented using the mmalloc() family. */ | |
1006 | ||
1007 | void * | |
1008 | xmmalloc (void *md, size_t size) | |
c906108c | 1009 | { |
c0e61796 | 1010 | void *val; |
c906108c SS |
1011 | |
1012 | if (size == 0) | |
1013 | { | |
1014 | val = NULL; | |
1015 | } | |
c0e61796 | 1016 | else |
c906108c | 1017 | { |
c0e61796 AC |
1018 | val = mmalloc (md, size); |
1019 | if (val == NULL) | |
1020 | nomem (size); | |
c906108c SS |
1021 | } |
1022 | return (val); | |
1023 | } | |
1024 | ||
c0e61796 AC |
1025 | void * |
1026 | xmrealloc (void *md, void *ptr, size_t size) | |
c906108c | 1027 | { |
c0e61796 | 1028 | void *val; |
c906108c | 1029 | |
d7fa9de0 | 1030 | if (size == 0) |
c906108c | 1031 | { |
d7fa9de0 KB |
1032 | if (ptr != NULL) |
1033 | mfree (md, ptr); | |
1034 | val = NULL; | |
c906108c SS |
1035 | } |
1036 | else | |
1037 | { | |
d7fa9de0 KB |
1038 | if (ptr != NULL) |
1039 | { | |
1040 | val = mrealloc (md, ptr, size); | |
1041 | } | |
1042 | else | |
1043 | { | |
1044 | val = mmalloc (md, size); | |
1045 | } | |
1046 | if (val == NULL) | |
1047 | { | |
1048 | nomem (size); | |
1049 | } | |
c906108c SS |
1050 | } |
1051 | return (val); | |
1052 | } | |
1053 | ||
c0e61796 AC |
1054 | void * |
1055 | xmcalloc (void *md, size_t number, size_t size) | |
ed9a39eb | 1056 | { |
d7fa9de0 | 1057 | void *mem; |
d7fa9de0 KB |
1058 | if (number == 0 || size == 0) |
1059 | mem = NULL; | |
1060 | else | |
1061 | { | |
c0e61796 | 1062 | mem = mcalloc (md, number, size); |
d7fa9de0 KB |
1063 | if (mem == NULL) |
1064 | nomem (number * size); | |
1065 | } | |
ed9a39eb JM |
1066 | return mem; |
1067 | } | |
1068 | ||
c0e61796 AC |
1069 | void |
1070 | xmfree (void *md, void *ptr) | |
1071 | { | |
1072 | if (ptr != NULL) | |
1073 | mfree (md, ptr); | |
1074 | } | |
1075 | ||
1076 | /* The xmalloc() (libiberty.h) family of memory management routines. | |
1077 | ||
1078 | These are like the ISO-C malloc() family except that they implement | |
1079 | consistent semantics and guard against typical memory management | |
1080 | problems. See xmmalloc() above for further information. | |
1081 | ||
1082 | All these routines are wrappers to the xmmalloc() family. */ | |
1083 | ||
1084 | /* NOTE: These are declared using PTR to ensure consistency with | |
1085 | "libiberty.h". xfree() is GDB local. */ | |
1086 | ||
1087 | PTR | |
1088 | xmalloc (size_t size) | |
1089 | { | |
1090 | return xmmalloc (NULL, size); | |
1091 | } | |
c906108c SS |
1092 | |
1093 | PTR | |
fba45db2 | 1094 | xrealloc (PTR ptr, size_t size) |
c906108c | 1095 | { |
c0e61796 | 1096 | return xmrealloc (NULL, ptr, size); |
c906108c | 1097 | } |
b8c9b27d | 1098 | |
c0e61796 AC |
1099 | PTR |
1100 | xcalloc (size_t number, size_t size) | |
1101 | { | |
1102 | return xmcalloc (NULL, number, size); | |
1103 | } | |
b8c9b27d KB |
1104 | |
1105 | void | |
1106 | xfree (void *ptr) | |
1107 | { | |
c0e61796 | 1108 | xmfree (NULL, ptr); |
b8c9b27d | 1109 | } |
c906108c | 1110 | \f |
c5aa993b | 1111 | |
76995688 AC |
1112 | /* Like asprintf/vasprintf but get an internal_error if the call |
1113 | fails. */ | |
1114 | ||
1115 | void | |
1116 | xasprintf (char **ret, const char *format, ...) | |
1117 | { | |
1118 | va_list args; | |
1119 | va_start (args, format); | |
1120 | xvasprintf (ret, format, args); | |
1121 | va_end (args); | |
1122 | } | |
1123 | ||
1124 | void | |
1125 | xvasprintf (char **ret, const char *format, va_list ap) | |
1126 | { | |
1127 | int status = vasprintf (ret, format, ap); | |
1128 | /* NULL could be returned due to a memory allocation problem; a | |
1129 | badly format string; or something else. */ | |
1130 | if ((*ret) == NULL) | |
8e65ff28 AC |
1131 | internal_error (__FILE__, __LINE__, |
1132 | "vasprintf returned NULL buffer (errno %d)", | |
1133 | errno); | |
76995688 AC |
1134 | /* A negative status with a non-NULL buffer shouldn't never |
1135 | happen. But to be sure. */ | |
1136 | if (status < 0) | |
8e65ff28 AC |
1137 | internal_error (__FILE__, __LINE__, |
1138 | "vasprintf call failed (errno %d)", | |
1139 | errno); | |
76995688 AC |
1140 | } |
1141 | ||
1142 | ||
c906108c SS |
1143 | /* My replacement for the read system call. |
1144 | Used like `read' but keeps going if `read' returns too soon. */ | |
1145 | ||
1146 | int | |
fba45db2 | 1147 | myread (int desc, char *addr, int len) |
c906108c SS |
1148 | { |
1149 | register int val; | |
1150 | int orglen = len; | |
1151 | ||
1152 | while (len > 0) | |
1153 | { | |
1154 | val = read (desc, addr, len); | |
1155 | if (val < 0) | |
1156 | return val; | |
1157 | if (val == 0) | |
1158 | return orglen - len; | |
1159 | len -= val; | |
1160 | addr += val; | |
1161 | } | |
1162 | return orglen; | |
1163 | } | |
1164 | \f | |
1165 | /* Make a copy of the string at PTR with SIZE characters | |
1166 | (and add a null character at the end in the copy). | |
1167 | Uses malloc to get the space. Returns the address of the copy. */ | |
1168 | ||
1169 | char * | |
5565b556 | 1170 | savestring (const char *ptr, size_t size) |
c906108c SS |
1171 | { |
1172 | register char *p = (char *) xmalloc (size + 1); | |
1173 | memcpy (p, ptr, size); | |
1174 | p[size] = 0; | |
1175 | return p; | |
1176 | } | |
1177 | ||
1178 | char * | |
5565b556 | 1179 | msavestring (void *md, const char *ptr, size_t size) |
c906108c SS |
1180 | { |
1181 | register char *p = (char *) xmmalloc (md, size + 1); | |
1182 | memcpy (p, ptr, size); | |
1183 | p[size] = 0; | |
1184 | return p; | |
1185 | } | |
1186 | ||
c906108c | 1187 | char * |
082faf24 | 1188 | mstrsave (void *md, const char *ptr) |
c906108c SS |
1189 | { |
1190 | return (msavestring (md, ptr, strlen (ptr))); | |
1191 | } | |
1192 | ||
1193 | void | |
fba45db2 | 1194 | print_spaces (register int n, register struct ui_file *file) |
c906108c | 1195 | { |
392a587b | 1196 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1197 | } |
1198 | ||
1199 | /* Print a host address. */ | |
1200 | ||
1201 | void | |
d9fcf2fb | 1202 | gdb_print_host_address (void *addr, struct ui_file *stream) |
c906108c SS |
1203 | { |
1204 | ||
1205 | /* We could use the %p conversion specifier to fprintf if we had any | |
1206 | way of knowing whether this host supports it. But the following | |
1207 | should work on the Alpha and on 32 bit machines. */ | |
1208 | ||
c5aa993b | 1209 | fprintf_filtered (stream, "0x%lx", (unsigned long) addr); |
c906108c SS |
1210 | } |
1211 | ||
1212 | /* Ask user a y-or-n question and return 1 iff answer is yes. | |
1213 | Takes three args which are given to printf to print the question. | |
1214 | The first, a control string, should end in "? ". | |
1215 | It should not say how to answer, because we do that. */ | |
1216 | ||
1217 | /* VARARGS */ | |
1218 | int | |
c5aa993b | 1219 | query (char *ctlstr,...) |
c906108c SS |
1220 | { |
1221 | va_list args; | |
1222 | register int answer; | |
1223 | register int ans2; | |
1224 | int retval; | |
1225 | ||
c906108c | 1226 | va_start (args, ctlstr); |
c906108c SS |
1227 | |
1228 | if (query_hook) | |
1229 | { | |
1230 | return query_hook (ctlstr, args); | |
1231 | } | |
1232 | ||
1233 | /* Automatically answer "yes" if input is not from a terminal. */ | |
1234 | if (!input_from_terminal_p ()) | |
1235 | return 1; | |
d036b4d9 AC |
1236 | /* OBSOLETE #ifdef MPW */ |
1237 | /* OBSOLETE *//* FIXME Automatically answer "yes" if called from MacGDB. */ | |
1238 | /* OBSOLETE if (mac_app) */ | |
1239 | /* OBSOLETE return 1; */ | |
1240 | /* OBSOLETE #endif *//* MPW */ | |
c906108c SS |
1241 | |
1242 | while (1) | |
1243 | { | |
1244 | wrap_here (""); /* Flush any buffered output */ | |
1245 | gdb_flush (gdb_stdout); | |
1246 | ||
1247 | if (annotation_level > 1) | |
1248 | printf_filtered ("\n\032\032pre-query\n"); | |
1249 | ||
1250 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1251 | printf_filtered ("(y or n) "); | |
1252 | ||
1253 | if (annotation_level > 1) | |
1254 | printf_filtered ("\n\032\032query\n"); | |
1255 | ||
d036b4d9 AC |
1256 | /* OBSOLETE #ifdef MPW */ |
1257 | /* OBSOLETE *//* If not in MacGDB, move to a new line so the entered line doesn't */ | |
1258 | /* OBSOLETE have a prompt on the front of it. */ | |
1259 | /* OBSOLETE if (!mac_app) */ | |
1260 | /* OBSOLETE fputs_unfiltered ("\n", gdb_stdout); */ | |
1261 | /* OBSOLETE #endif *//* MPW */ | |
c906108c | 1262 | |
c5aa993b | 1263 | wrap_here (""); |
c906108c SS |
1264 | gdb_flush (gdb_stdout); |
1265 | ||
37767e42 | 1266 | answer = fgetc (stdin); |
c906108c SS |
1267 | clearerr (stdin); /* in case of C-d */ |
1268 | if (answer == EOF) /* C-d */ | |
c5aa993b | 1269 | { |
c906108c SS |
1270 | retval = 1; |
1271 | break; | |
1272 | } | |
1273 | /* Eat rest of input line, to EOF or newline */ | |
37767e42 | 1274 | if (answer != '\n') |
c5aa993b | 1275 | do |
c906108c | 1276 | { |
37767e42 | 1277 | ans2 = fgetc (stdin); |
c906108c SS |
1278 | clearerr (stdin); |
1279 | } | |
c5aa993b | 1280 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); |
c906108c SS |
1281 | |
1282 | if (answer >= 'a') | |
1283 | answer -= 040; | |
1284 | if (answer == 'Y') | |
1285 | { | |
1286 | retval = 1; | |
1287 | break; | |
1288 | } | |
1289 | if (answer == 'N') | |
1290 | { | |
1291 | retval = 0; | |
1292 | break; | |
1293 | } | |
1294 | printf_filtered ("Please answer y or n.\n"); | |
1295 | } | |
1296 | ||
1297 | if (annotation_level > 1) | |
1298 | printf_filtered ("\n\032\032post-query\n"); | |
1299 | return retval; | |
1300 | } | |
c906108c | 1301 | \f |
c5aa993b | 1302 | |
c906108c SS |
1303 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1304 | containing a pointer to the string to parse. That pointer | |
1305 | should point to the character after the \. That pointer | |
1306 | is updated past the characters we use. The value of the | |
1307 | escape sequence is returned. | |
1308 | ||
1309 | A negative value means the sequence \ newline was seen, | |
1310 | which is supposed to be equivalent to nothing at all. | |
1311 | ||
1312 | If \ is followed by a null character, we return a negative | |
1313 | value and leave the string pointer pointing at the null character. | |
1314 | ||
1315 | If \ is followed by 000, we return 0 and leave the string pointer | |
1316 | after the zeros. A value of 0 does not mean end of string. */ | |
1317 | ||
1318 | int | |
fba45db2 | 1319 | parse_escape (char **string_ptr) |
c906108c SS |
1320 | { |
1321 | register int c = *(*string_ptr)++; | |
1322 | switch (c) | |
1323 | { | |
1324 | case 'a': | |
1325 | return 007; /* Bell (alert) char */ | |
1326 | case 'b': | |
1327 | return '\b'; | |
1328 | case 'e': /* Escape character */ | |
1329 | return 033; | |
1330 | case 'f': | |
1331 | return '\f'; | |
1332 | case 'n': | |
1333 | return '\n'; | |
1334 | case 'r': | |
1335 | return '\r'; | |
1336 | case 't': | |
1337 | return '\t'; | |
1338 | case 'v': | |
1339 | return '\v'; | |
1340 | case '\n': | |
1341 | return -2; | |
1342 | case 0: | |
1343 | (*string_ptr)--; | |
1344 | return 0; | |
1345 | case '^': | |
1346 | c = *(*string_ptr)++; | |
1347 | if (c == '\\') | |
1348 | c = parse_escape (string_ptr); | |
1349 | if (c == '?') | |
1350 | return 0177; | |
1351 | return (c & 0200) | (c & 037); | |
c5aa993b | 1352 | |
c906108c SS |
1353 | case '0': |
1354 | case '1': | |
1355 | case '2': | |
1356 | case '3': | |
1357 | case '4': | |
1358 | case '5': | |
1359 | case '6': | |
1360 | case '7': | |
1361 | { | |
1362 | register int i = c - '0'; | |
1363 | register int count = 0; | |
1364 | while (++count < 3) | |
1365 | { | |
1366 | if ((c = *(*string_ptr)++) >= '0' && c <= '7') | |
1367 | { | |
1368 | i *= 8; | |
1369 | i += c - '0'; | |
1370 | } | |
1371 | else | |
1372 | { | |
1373 | (*string_ptr)--; | |
1374 | break; | |
1375 | } | |
1376 | } | |
1377 | return i; | |
1378 | } | |
1379 | default: | |
1380 | return c; | |
1381 | } | |
1382 | } | |
1383 | \f | |
1384 | /* Print the character C on STREAM as part of the contents of a literal | |
1385 | string whose delimiter is QUOTER. Note that this routine should only | |
1386 | be call for printing things which are independent of the language | |
1387 | of the program being debugged. */ | |
1388 | ||
43e526b9 | 1389 | static void |
74f832da KB |
1390 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
1391 | void (*do_fprintf) (struct ui_file *, const char *, ...), | |
1392 | struct ui_file *stream, int quoter) | |
c906108c SS |
1393 | { |
1394 | ||
1395 | c &= 0xFF; /* Avoid sign bit follies */ | |
1396 | ||
c5aa993b JM |
1397 | if (c < 0x20 || /* Low control chars */ |
1398 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1399 | (sevenbit_strings && c >= 0x80)) | |
1400 | { /* high order bit set */ | |
1401 | switch (c) | |
1402 | { | |
1403 | case '\n': | |
43e526b9 | 1404 | do_fputs ("\\n", stream); |
c5aa993b JM |
1405 | break; |
1406 | case '\b': | |
43e526b9 | 1407 | do_fputs ("\\b", stream); |
c5aa993b JM |
1408 | break; |
1409 | case '\t': | |
43e526b9 | 1410 | do_fputs ("\\t", stream); |
c5aa993b JM |
1411 | break; |
1412 | case '\f': | |
43e526b9 | 1413 | do_fputs ("\\f", stream); |
c5aa993b JM |
1414 | break; |
1415 | case '\r': | |
43e526b9 | 1416 | do_fputs ("\\r", stream); |
c5aa993b JM |
1417 | break; |
1418 | case '\033': | |
43e526b9 | 1419 | do_fputs ("\\e", stream); |
c5aa993b JM |
1420 | break; |
1421 | case '\007': | |
43e526b9 | 1422 | do_fputs ("\\a", stream); |
c5aa993b JM |
1423 | break; |
1424 | default: | |
43e526b9 | 1425 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1426 | break; |
1427 | } | |
1428 | } | |
1429 | else | |
1430 | { | |
1431 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1432 | do_fputs ("\\", stream); |
1433 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1434 | } |
c906108c | 1435 | } |
43e526b9 JM |
1436 | |
1437 | /* Print the character C on STREAM as part of the contents of a | |
1438 | literal string whose delimiter is QUOTER. Note that these routines | |
1439 | should only be call for printing things which are independent of | |
1440 | the language of the program being debugged. */ | |
1441 | ||
1442 | void | |
fba45db2 | 1443 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1444 | { |
1445 | while (*str) | |
1446 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1447 | } | |
1448 | ||
1449 | void | |
fba45db2 | 1450 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1451 | { |
1452 | while (*str) | |
1453 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1454 | } | |
1455 | ||
1456 | void | |
fba45db2 | 1457 | fputstrn_unfiltered (const char *str, int n, int quoter, struct ui_file *stream) |
43e526b9 JM |
1458 | { |
1459 | int i; | |
1460 | for (i = 0; i < n; i++) | |
1461 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1462 | } | |
1463 | ||
c906108c | 1464 | \f |
c5aa993b | 1465 | |
c906108c SS |
1466 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1467 | static unsigned int lines_per_page; | |
cbfbd72a | 1468 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c SS |
1469 | static unsigned int chars_per_line; |
1470 | /* Current count of lines printed on this page, chars on this line. */ | |
1471 | static unsigned int lines_printed, chars_printed; | |
1472 | ||
1473 | /* Buffer and start column of buffered text, for doing smarter word- | |
1474 | wrapping. When someone calls wrap_here(), we start buffering output | |
1475 | that comes through fputs_filtered(). If we see a newline, we just | |
1476 | spit it out and forget about the wrap_here(). If we see another | |
1477 | wrap_here(), we spit it out and remember the newer one. If we see | |
1478 | the end of the line, we spit out a newline, the indent, and then | |
1479 | the buffered output. */ | |
1480 | ||
1481 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1482 | are waiting to be output (they have already been counted in chars_printed). | |
1483 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1484 | static char *wrap_buffer; | |
1485 | ||
1486 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1487 | static char *wrap_pointer; | |
1488 | ||
1489 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1490 | is non-zero. */ | |
1491 | static char *wrap_indent; | |
1492 | ||
1493 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1494 | is not in effect. */ | |
1495 | static int wrap_column; | |
c906108c | 1496 | \f |
c5aa993b | 1497 | |
c906108c SS |
1498 | /* Inialize the lines and chars per page */ |
1499 | void | |
fba45db2 | 1500 | init_page_info (void) |
c906108c SS |
1501 | { |
1502 | #if defined(TUI) | |
5ecb1806 | 1503 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1504 | #endif |
1505 | { | |
1506 | /* These defaults will be used if we are unable to get the correct | |
1507 | values from termcap. */ | |
1508 | #if defined(__GO32__) | |
c5aa993b JM |
1509 | lines_per_page = ScreenRows (); |
1510 | chars_per_line = ScreenCols (); | |
1511 | #else | |
c906108c SS |
1512 | lines_per_page = 24; |
1513 | chars_per_line = 80; | |
1514 | ||
d036b4d9 | 1515 | #if !defined (_WIN32) |
c906108c SS |
1516 | /* No termcap under MPW, although might be cool to do something |
1517 | by looking at worksheet or console window sizes. */ | |
1518 | /* Initialize the screen height and width from termcap. */ | |
1519 | { | |
c5aa993b | 1520 | char *termtype = getenv ("TERM"); |
c906108c | 1521 | |
c5aa993b JM |
1522 | /* Positive means success, nonpositive means failure. */ |
1523 | int status; | |
c906108c | 1524 | |
c5aa993b JM |
1525 | /* 2048 is large enough for all known terminals, according to the |
1526 | GNU termcap manual. */ | |
1527 | char term_buffer[2048]; | |
c906108c | 1528 | |
c5aa993b JM |
1529 | if (termtype) |
1530 | { | |
c906108c SS |
1531 | status = tgetent (term_buffer, termtype); |
1532 | if (status > 0) | |
1533 | { | |
c5aa993b | 1534 | int val; |
c906108c | 1535 | int running_in_emacs = getenv ("EMACS") != NULL; |
c5aa993b JM |
1536 | |
1537 | val = tgetnum ("li"); | |
1538 | if (val >= 0 && !running_in_emacs) | |
1539 | lines_per_page = val; | |
1540 | else | |
1541 | /* The number of lines per page is not mentioned | |
c906108c SS |
1542 | in the terminal description. This probably means |
1543 | that paging is not useful (e.g. emacs shell window), | |
1544 | so disable paging. */ | |
c5aa993b JM |
1545 | lines_per_page = UINT_MAX; |
1546 | ||
1547 | val = tgetnum ("co"); | |
1548 | if (val >= 0) | |
1549 | chars_per_line = val; | |
c906108c | 1550 | } |
c5aa993b | 1551 | } |
c906108c SS |
1552 | } |
1553 | #endif /* MPW */ | |
1554 | ||
1555 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) | |
1556 | ||
1557 | /* If there is a better way to determine the window size, use it. */ | |
1558 | SIGWINCH_HANDLER (SIGWINCH); | |
1559 | #endif | |
1560 | #endif | |
1561 | /* If the output is not a terminal, don't paginate it. */ | |
d9fcf2fb | 1562 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b JM |
1563 | lines_per_page = UINT_MAX; |
1564 | } /* the command_line_version */ | |
1565 | set_width (); | |
c906108c SS |
1566 | } |
1567 | ||
1568 | static void | |
fba45db2 | 1569 | set_width (void) |
c906108c SS |
1570 | { |
1571 | if (chars_per_line == 0) | |
c5aa993b | 1572 | init_page_info (); |
c906108c SS |
1573 | |
1574 | if (!wrap_buffer) | |
1575 | { | |
1576 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1577 | wrap_buffer[0] = '\0'; | |
1578 | } | |
1579 | else | |
1580 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
c5aa993b | 1581 | wrap_pointer = wrap_buffer; /* Start it at the beginning */ |
c906108c SS |
1582 | } |
1583 | ||
1584 | /* ARGSUSED */ | |
c5aa993b | 1585 | static void |
fba45db2 | 1586 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c SS |
1587 | { |
1588 | set_width (); | |
1589 | } | |
1590 | ||
1591 | /* Wait, so the user can read what's on the screen. Prompt the user | |
1592 | to continue by pressing RETURN. */ | |
1593 | ||
1594 | static void | |
fba45db2 | 1595 | prompt_for_continue (void) |
c906108c SS |
1596 | { |
1597 | char *ignore; | |
1598 | char cont_prompt[120]; | |
1599 | ||
1600 | if (annotation_level > 1) | |
1601 | printf_unfiltered ("\n\032\032pre-prompt-for-continue\n"); | |
1602 | ||
1603 | strcpy (cont_prompt, | |
1604 | "---Type <return> to continue, or q <return> to quit---"); | |
1605 | if (annotation_level > 1) | |
1606 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1607 | ||
1608 | /* We must do this *before* we call gdb_readline, else it will eventually | |
1609 | call us -- thinking that we're trying to print beyond the end of the | |
1610 | screen. */ | |
1611 | reinitialize_more_filter (); | |
1612 | ||
1613 | immediate_quit++; | |
1614 | /* On a real operating system, the user can quit with SIGINT. | |
1615 | But not on GO32. | |
1616 | ||
1617 | 'q' is provided on all systems so users don't have to change habits | |
1618 | from system to system, and because telling them what to do in | |
1619 | the prompt is more user-friendly than expecting them to think of | |
1620 | SIGINT. */ | |
1621 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
1622 | whereas control-C to gdb_readline will cause the user to get dumped | |
1623 | out to DOS. */ | |
1624 | ignore = readline (cont_prompt); | |
1625 | ||
1626 | if (annotation_level > 1) | |
1627 | printf_unfiltered ("\n\032\032post-prompt-for-continue\n"); | |
1628 | ||
1629 | if (ignore) | |
1630 | { | |
1631 | char *p = ignore; | |
1632 | while (*p == ' ' || *p == '\t') | |
1633 | ++p; | |
1634 | if (p[0] == 'q') | |
0f71a2f6 | 1635 | { |
6426a772 | 1636 | if (!event_loop_p) |
0f71a2f6 JM |
1637 | request_quit (SIGINT); |
1638 | else | |
c5aa993b | 1639 | async_request_quit (0); |
0f71a2f6 | 1640 | } |
b8c9b27d | 1641 | xfree (ignore); |
c906108c SS |
1642 | } |
1643 | immediate_quit--; | |
1644 | ||
1645 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1646 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1647 | reinitialize_more_filter (); | |
1648 | ||
1649 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ | |
1650 | } | |
1651 | ||
1652 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
1653 | ||
1654 | void | |
fba45db2 | 1655 | reinitialize_more_filter (void) |
c906108c SS |
1656 | { |
1657 | lines_printed = 0; | |
1658 | chars_printed = 0; | |
1659 | } | |
1660 | ||
1661 | /* Indicate that if the next sequence of characters overflows the line, | |
1662 | a newline should be inserted here rather than when it hits the end. | |
1663 | If INDENT is non-null, it is a string to be printed to indent the | |
1664 | wrapped part on the next line. INDENT must remain accessible until | |
1665 | the next call to wrap_here() or until a newline is printed through | |
1666 | fputs_filtered(). | |
1667 | ||
1668 | If the line is already overfull, we immediately print a newline and | |
1669 | the indentation, and disable further wrapping. | |
1670 | ||
1671 | If we don't know the width of lines, but we know the page height, | |
1672 | we must not wrap words, but should still keep track of newlines | |
1673 | that were explicitly printed. | |
1674 | ||
1675 | INDENT should not contain tabs, as that will mess up the char count | |
1676 | on the next line. FIXME. | |
1677 | ||
1678 | This routine is guaranteed to force out any output which has been | |
1679 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1680 | used to force out output from the wrap_buffer. */ | |
1681 | ||
1682 | void | |
fba45db2 | 1683 | wrap_here (char *indent) |
c906108c SS |
1684 | { |
1685 | /* This should have been allocated, but be paranoid anyway. */ | |
1686 | if (!wrap_buffer) | |
e1e9e218 | 1687 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
1688 | |
1689 | if (wrap_buffer[0]) | |
1690 | { | |
1691 | *wrap_pointer = '\0'; | |
1692 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1693 | } | |
1694 | wrap_pointer = wrap_buffer; | |
1695 | wrap_buffer[0] = '\0'; | |
c5aa993b | 1696 | if (chars_per_line == UINT_MAX) /* No line overflow checking */ |
c906108c SS |
1697 | { |
1698 | wrap_column = 0; | |
1699 | } | |
1700 | else if (chars_printed >= chars_per_line) | |
1701 | { | |
1702 | puts_filtered ("\n"); | |
1703 | if (indent != NULL) | |
1704 | puts_filtered (indent); | |
1705 | wrap_column = 0; | |
1706 | } | |
1707 | else | |
1708 | { | |
1709 | wrap_column = chars_printed; | |
1710 | if (indent == NULL) | |
1711 | wrap_indent = ""; | |
1712 | else | |
1713 | wrap_indent = indent; | |
1714 | } | |
1715 | } | |
1716 | ||
1717 | /* Ensure that whatever gets printed next, using the filtered output | |
1718 | commands, starts at the beginning of the line. I.E. if there is | |
1719 | any pending output for the current line, flush it and start a new | |
1720 | line. Otherwise do nothing. */ | |
1721 | ||
1722 | void | |
fba45db2 | 1723 | begin_line (void) |
c906108c SS |
1724 | { |
1725 | if (chars_printed > 0) | |
1726 | { | |
1727 | puts_filtered ("\n"); | |
1728 | } | |
1729 | } | |
1730 | ||
ac9a91a7 | 1731 | |
c906108c SS |
1732 | /* Like fputs but if FILTER is true, pause after every screenful. |
1733 | ||
1734 | Regardless of FILTER can wrap at points other than the final | |
1735 | character of a line. | |
1736 | ||
1737 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
1738 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
1739 | anything. | |
1740 | ||
1741 | Note that a longjmp to top level may occur in this routine (only if | |
1742 | FILTER is true) (since prompt_for_continue may do so) so this | |
1743 | routine should not be called when cleanups are not in place. */ | |
1744 | ||
1745 | static void | |
fba45db2 KB |
1746 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
1747 | int filter) | |
c906108c SS |
1748 | { |
1749 | const char *lineptr; | |
1750 | ||
1751 | if (linebuffer == 0) | |
1752 | return; | |
1753 | ||
1754 | /* Don't do any filtering if it is disabled. */ | |
7a292a7a | 1755 | if ((stream != gdb_stdout) || !pagination_enabled |
c5aa993b | 1756 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX)) |
c906108c SS |
1757 | { |
1758 | fputs_unfiltered (linebuffer, stream); | |
1759 | return; | |
1760 | } | |
1761 | ||
1762 | /* Go through and output each character. Show line extension | |
1763 | when this is necessary; prompt user for new page when this is | |
1764 | necessary. */ | |
c5aa993b | 1765 | |
c906108c SS |
1766 | lineptr = linebuffer; |
1767 | while (*lineptr) | |
1768 | { | |
1769 | /* Possible new page. */ | |
1770 | if (filter && | |
1771 | (lines_printed >= lines_per_page - 1)) | |
1772 | prompt_for_continue (); | |
1773 | ||
1774 | while (*lineptr && *lineptr != '\n') | |
1775 | { | |
1776 | /* Print a single line. */ | |
1777 | if (*lineptr == '\t') | |
1778 | { | |
1779 | if (wrap_column) | |
1780 | *wrap_pointer++ = '\t'; | |
1781 | else | |
1782 | fputc_unfiltered ('\t', stream); | |
1783 | /* Shifting right by 3 produces the number of tab stops | |
1784 | we have already passed, and then adding one and | |
c5aa993b | 1785 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
1786 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
1787 | lineptr++; | |
1788 | } | |
1789 | else | |
1790 | { | |
1791 | if (wrap_column) | |
1792 | *wrap_pointer++ = *lineptr; | |
1793 | else | |
c5aa993b | 1794 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
1795 | chars_printed++; |
1796 | lineptr++; | |
1797 | } | |
c5aa993b | 1798 | |
c906108c SS |
1799 | if (chars_printed >= chars_per_line) |
1800 | { | |
1801 | unsigned int save_chars = chars_printed; | |
1802 | ||
1803 | chars_printed = 0; | |
1804 | lines_printed++; | |
1805 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
1806 | if chars_per_line is right, we probably just overflowed |
1807 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
1808 | if (wrap_column) |
1809 | fputc_unfiltered ('\n', stream); | |
1810 | ||
1811 | /* Possible new page. */ | |
1812 | if (lines_printed >= lines_per_page - 1) | |
1813 | prompt_for_continue (); | |
1814 | ||
1815 | /* Now output indentation and wrapped string */ | |
1816 | if (wrap_column) | |
1817 | { | |
1818 | fputs_unfiltered (wrap_indent, stream); | |
c5aa993b JM |
1819 | *wrap_pointer = '\0'; /* Null-terminate saved stuff */ |
1820 | fputs_unfiltered (wrap_buffer, stream); /* and eject it */ | |
c906108c SS |
1821 | /* FIXME, this strlen is what prevents wrap_indent from |
1822 | containing tabs. However, if we recurse to print it | |
1823 | and count its chars, we risk trouble if wrap_indent is | |
1824 | longer than (the user settable) chars_per_line. | |
1825 | Note also that this can set chars_printed > chars_per_line | |
1826 | if we are printing a long string. */ | |
1827 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 1828 | + (save_chars - wrap_column); |
c906108c SS |
1829 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
1830 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
1831 | wrap_column = 0; /* And disable fancy wrap */ |
1832 | } | |
c906108c SS |
1833 | } |
1834 | } | |
1835 | ||
1836 | if (*lineptr == '\n') | |
1837 | { | |
1838 | chars_printed = 0; | |
c5aa993b | 1839 | wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */ |
c906108c SS |
1840 | lines_printed++; |
1841 | fputc_unfiltered ('\n', stream); | |
1842 | lineptr++; | |
1843 | } | |
1844 | } | |
1845 | } | |
1846 | ||
1847 | void | |
fba45db2 | 1848 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
1849 | { |
1850 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1851 | } | |
1852 | ||
1853 | int | |
fba45db2 | 1854 | putchar_unfiltered (int c) |
c906108c | 1855 | { |
11cf8741 | 1856 | char buf = c; |
d9fcf2fb | 1857 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
1858 | return c; |
1859 | } | |
1860 | ||
d1f4cff8 AC |
1861 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
1862 | May return nonlocally. */ | |
1863 | ||
1864 | int | |
1865 | putchar_filtered (int c) | |
1866 | { | |
1867 | return fputc_filtered (c, gdb_stdout); | |
1868 | } | |
1869 | ||
c906108c | 1870 | int |
fba45db2 | 1871 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 1872 | { |
11cf8741 | 1873 | char buf = c; |
d9fcf2fb | 1874 | ui_file_write (stream, &buf, 1); |
c906108c SS |
1875 | return c; |
1876 | } | |
1877 | ||
1878 | int | |
fba45db2 | 1879 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
1880 | { |
1881 | char buf[2]; | |
1882 | ||
1883 | buf[0] = c; | |
1884 | buf[1] = 0; | |
1885 | fputs_filtered (buf, stream); | |
1886 | return c; | |
1887 | } | |
1888 | ||
1889 | /* puts_debug is like fputs_unfiltered, except it prints special | |
1890 | characters in printable fashion. */ | |
1891 | ||
1892 | void | |
fba45db2 | 1893 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
1894 | { |
1895 | int ch; | |
1896 | ||
1897 | /* Print prefix and suffix after each line. */ | |
1898 | static int new_line = 1; | |
1899 | static int return_p = 0; | |
1900 | static char *prev_prefix = ""; | |
1901 | static char *prev_suffix = ""; | |
1902 | ||
1903 | if (*string == '\n') | |
1904 | return_p = 0; | |
1905 | ||
1906 | /* If the prefix is changing, print the previous suffix, a new line, | |
1907 | and the new prefix. */ | |
c5aa993b | 1908 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 1909 | { |
9846de1b JM |
1910 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
1911 | fputs_unfiltered ("\n", gdb_stdlog); | |
1912 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
1913 | } |
1914 | ||
1915 | /* Print prefix if we printed a newline during the previous call. */ | |
1916 | if (new_line) | |
1917 | { | |
1918 | new_line = 0; | |
9846de1b | 1919 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
1920 | } |
1921 | ||
1922 | prev_prefix = prefix; | |
1923 | prev_suffix = suffix; | |
1924 | ||
1925 | /* Output characters in a printable format. */ | |
1926 | while ((ch = *string++) != '\0') | |
1927 | { | |
1928 | switch (ch) | |
c5aa993b | 1929 | { |
c906108c SS |
1930 | default: |
1931 | if (isprint (ch)) | |
9846de1b | 1932 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
1933 | |
1934 | else | |
9846de1b | 1935 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
1936 | break; |
1937 | ||
c5aa993b JM |
1938 | case '\\': |
1939 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
1940 | break; | |
1941 | case '\b': | |
1942 | fputs_unfiltered ("\\b", gdb_stdlog); | |
1943 | break; | |
1944 | case '\f': | |
1945 | fputs_unfiltered ("\\f", gdb_stdlog); | |
1946 | break; | |
1947 | case '\n': | |
1948 | new_line = 1; | |
1949 | fputs_unfiltered ("\\n", gdb_stdlog); | |
1950 | break; | |
1951 | case '\r': | |
1952 | fputs_unfiltered ("\\r", gdb_stdlog); | |
1953 | break; | |
1954 | case '\t': | |
1955 | fputs_unfiltered ("\\t", gdb_stdlog); | |
1956 | break; | |
1957 | case '\v': | |
1958 | fputs_unfiltered ("\\v", gdb_stdlog); | |
1959 | break; | |
1960 | } | |
c906108c SS |
1961 | |
1962 | return_p = ch == '\r'; | |
1963 | } | |
1964 | ||
1965 | /* Print suffix if we printed a newline. */ | |
1966 | if (new_line) | |
1967 | { | |
9846de1b JM |
1968 | fputs_unfiltered (suffix, gdb_stdlog); |
1969 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
1970 | } |
1971 | } | |
1972 | ||
1973 | ||
1974 | /* Print a variable number of ARGS using format FORMAT. If this | |
1975 | information is going to put the amount written (since the last call | |
1976 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
1977 | call prompt_for_continue to get the users permision to continue. | |
1978 | ||
1979 | Unlike fprintf, this function does not return a value. | |
1980 | ||
1981 | We implement three variants, vfprintf (takes a vararg list and stream), | |
1982 | fprintf (takes a stream to write on), and printf (the usual). | |
1983 | ||
1984 | Note also that a longjmp to top level may occur in this routine | |
1985 | (since prompt_for_continue may do so) so this routine should not be | |
1986 | called when cleanups are not in place. */ | |
1987 | ||
1988 | static void | |
fba45db2 KB |
1989 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
1990 | va_list args, int filter) | |
c906108c SS |
1991 | { |
1992 | char *linebuffer; | |
1993 | struct cleanup *old_cleanups; | |
1994 | ||
76995688 | 1995 | xvasprintf (&linebuffer, format, args); |
b8c9b27d | 1996 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
1997 | fputs_maybe_filtered (linebuffer, stream, filter); |
1998 | do_cleanups (old_cleanups); | |
1999 | } | |
2000 | ||
2001 | ||
2002 | void | |
fba45db2 | 2003 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2004 | { |
2005 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2006 | } | |
2007 | ||
2008 | void | |
fba45db2 | 2009 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2010 | { |
2011 | char *linebuffer; | |
2012 | struct cleanup *old_cleanups; | |
2013 | ||
76995688 | 2014 | xvasprintf (&linebuffer, format, args); |
b8c9b27d | 2015 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2016 | fputs_unfiltered (linebuffer, stream); |
2017 | do_cleanups (old_cleanups); | |
2018 | } | |
2019 | ||
2020 | void | |
fba45db2 | 2021 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2022 | { |
2023 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2024 | } | |
2025 | ||
2026 | void | |
fba45db2 | 2027 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2028 | { |
2029 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2030 | } | |
2031 | ||
c906108c | 2032 | void |
d9fcf2fb | 2033 | fprintf_filtered (struct ui_file * stream, const char *format,...) |
c906108c SS |
2034 | { |
2035 | va_list args; | |
c906108c | 2036 | va_start (args, format); |
c906108c SS |
2037 | vfprintf_filtered (stream, format, args); |
2038 | va_end (args); | |
2039 | } | |
2040 | ||
c906108c | 2041 | void |
d9fcf2fb | 2042 | fprintf_unfiltered (struct ui_file * stream, const char *format,...) |
c906108c SS |
2043 | { |
2044 | va_list args; | |
c906108c | 2045 | va_start (args, format); |
c906108c SS |
2046 | vfprintf_unfiltered (stream, format, args); |
2047 | va_end (args); | |
2048 | } | |
2049 | ||
2050 | /* Like fprintf_filtered, but prints its result indented. | |
2051 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2052 | ||
c906108c | 2053 | void |
d9fcf2fb | 2054 | fprintfi_filtered (int spaces, struct ui_file * stream, const char *format,...) |
c906108c SS |
2055 | { |
2056 | va_list args; | |
c906108c | 2057 | va_start (args, format); |
c906108c SS |
2058 | print_spaces_filtered (spaces, stream); |
2059 | ||
2060 | vfprintf_filtered (stream, format, args); | |
2061 | va_end (args); | |
2062 | } | |
2063 | ||
2064 | ||
c906108c | 2065 | void |
c5aa993b | 2066 | printf_filtered (const char *format,...) |
c906108c SS |
2067 | { |
2068 | va_list args; | |
c906108c | 2069 | va_start (args, format); |
c906108c SS |
2070 | vfprintf_filtered (gdb_stdout, format, args); |
2071 | va_end (args); | |
2072 | } | |
2073 | ||
2074 | ||
c906108c | 2075 | void |
c5aa993b | 2076 | printf_unfiltered (const char *format,...) |
c906108c SS |
2077 | { |
2078 | va_list args; | |
c906108c | 2079 | va_start (args, format); |
c906108c SS |
2080 | vfprintf_unfiltered (gdb_stdout, format, args); |
2081 | va_end (args); | |
2082 | } | |
2083 | ||
2084 | /* Like printf_filtered, but prints it's result indented. | |
2085 | Called as printfi_filtered (spaces, format, ...); */ | |
2086 | ||
c906108c | 2087 | void |
c5aa993b | 2088 | printfi_filtered (int spaces, const char *format,...) |
c906108c SS |
2089 | { |
2090 | va_list args; | |
c906108c | 2091 | va_start (args, format); |
c906108c SS |
2092 | print_spaces_filtered (spaces, gdb_stdout); |
2093 | vfprintf_filtered (gdb_stdout, format, args); | |
2094 | va_end (args); | |
2095 | } | |
2096 | ||
2097 | /* Easy -- but watch out! | |
2098 | ||
2099 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2100 | This one doesn't, and had better not! */ | |
2101 | ||
2102 | void | |
fba45db2 | 2103 | puts_filtered (const char *string) |
c906108c SS |
2104 | { |
2105 | fputs_filtered (string, gdb_stdout); | |
2106 | } | |
2107 | ||
2108 | void | |
fba45db2 | 2109 | puts_unfiltered (const char *string) |
c906108c SS |
2110 | { |
2111 | fputs_unfiltered (string, gdb_stdout); | |
2112 | } | |
2113 | ||
2114 | /* Return a pointer to N spaces and a null. The pointer is good | |
2115 | until the next call to here. */ | |
2116 | char * | |
fba45db2 | 2117 | n_spaces (int n) |
c906108c | 2118 | { |
392a587b JM |
2119 | char *t; |
2120 | static char *spaces = 0; | |
2121 | static int max_spaces = -1; | |
c906108c SS |
2122 | |
2123 | if (n > max_spaces) | |
2124 | { | |
2125 | if (spaces) | |
b8c9b27d | 2126 | xfree (spaces); |
c5aa993b JM |
2127 | spaces = (char *) xmalloc (n + 1); |
2128 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2129 | *--t = ' '; |
2130 | spaces[n] = '\0'; | |
2131 | max_spaces = n; | |
2132 | } | |
2133 | ||
2134 | return spaces + max_spaces - n; | |
2135 | } | |
2136 | ||
2137 | /* Print N spaces. */ | |
2138 | void | |
fba45db2 | 2139 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2140 | { |
2141 | fputs_filtered (n_spaces (n), stream); | |
2142 | } | |
2143 | \f | |
2144 | /* C++ demangler stuff. */ | |
2145 | ||
2146 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language | |
2147 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2148 | If the name is not mangled, or the language for the name is unknown, or | |
2149 | demangling is off, the name is printed in its "raw" form. */ | |
2150 | ||
2151 | void | |
fba45db2 KB |
2152 | fprintf_symbol_filtered (struct ui_file *stream, char *name, enum language lang, |
2153 | int arg_mode) | |
c906108c SS |
2154 | { |
2155 | char *demangled; | |
2156 | ||
2157 | if (name != NULL) | |
2158 | { | |
2159 | /* If user wants to see raw output, no problem. */ | |
2160 | if (!demangle) | |
2161 | { | |
2162 | fputs_filtered (name, stream); | |
2163 | } | |
2164 | else | |
2165 | { | |
2166 | switch (lang) | |
2167 | { | |
2168 | case language_cplus: | |
2169 | demangled = cplus_demangle (name, arg_mode); | |
2170 | break; | |
2171 | case language_java: | |
2172 | demangled = cplus_demangle (name, arg_mode | DMGL_JAVA); | |
2173 | break; | |
2174 | case language_chill: | |
2175 | demangled = chill_demangle (name); | |
2176 | break; | |
2177 | default: | |
2178 | demangled = NULL; | |
2179 | break; | |
2180 | } | |
2181 | fputs_filtered (demangled ? demangled : name, stream); | |
2182 | if (demangled != NULL) | |
2183 | { | |
b8c9b27d | 2184 | xfree (demangled); |
c906108c SS |
2185 | } |
2186 | } | |
2187 | } | |
2188 | } | |
2189 | ||
2190 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2191 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2192 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2193 | |
c906108c SS |
2194 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2195 | This "feature" is useful when searching for matching C++ function names | |
2196 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
2197 | function). */ | |
2198 | ||
2199 | int | |
fba45db2 | 2200 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2201 | { |
2202 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2203 | { | |
2204 | while (isspace (*string1)) | |
2205 | { | |
2206 | string1++; | |
2207 | } | |
2208 | while (isspace (*string2)) | |
2209 | { | |
2210 | string2++; | |
2211 | } | |
2212 | if (*string1 != *string2) | |
2213 | { | |
2214 | break; | |
2215 | } | |
2216 | if (*string1 != '\0') | |
2217 | { | |
2218 | string1++; | |
2219 | string2++; | |
2220 | } | |
2221 | } | |
2222 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2223 | } | |
c906108c | 2224 | \f |
c5aa993b | 2225 | |
c906108c | 2226 | /* |
c5aa993b JM |
2227 | ** subset_compare() |
2228 | ** Answer whether string_to_compare is a full or partial match to | |
2229 | ** template_string. The partial match must be in sequence starting | |
2230 | ** at index 0. | |
2231 | */ | |
c906108c | 2232 | int |
fba45db2 | 2233 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
2234 | { |
2235 | int match; | |
c5aa993b JM |
2236 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL && |
2237 | strlen (string_to_compare) <= strlen (template_string)) | |
2238 | match = (strncmp (template_string, | |
2239 | string_to_compare, | |
2240 | strlen (string_to_compare)) == 0); | |
7a292a7a SS |
2241 | else |
2242 | match = 0; | |
2243 | return match; | |
2244 | } | |
c906108c SS |
2245 | |
2246 | ||
a14ed312 | 2247 | static void pagination_on_command (char *arg, int from_tty); |
7a292a7a | 2248 | static void |
fba45db2 | 2249 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
2250 | { |
2251 | pagination_enabled = 1; | |
2252 | } | |
2253 | ||
a14ed312 | 2254 | static void pagination_on_command (char *arg, int from_tty); |
7a292a7a | 2255 | static void |
fba45db2 | 2256 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
2257 | { |
2258 | pagination_enabled = 0; | |
2259 | } | |
c906108c | 2260 | \f |
c5aa993b | 2261 | |
c906108c | 2262 | void |
fba45db2 | 2263 | initialize_utils (void) |
c906108c SS |
2264 | { |
2265 | struct cmd_list_element *c; | |
2266 | ||
c5aa993b JM |
2267 | c = add_set_cmd ("width", class_support, var_uinteger, |
2268 | (char *) &chars_per_line, | |
2269 | "Set number of characters gdb thinks are in a line.", | |
2270 | &setlist); | |
c906108c SS |
2271 | add_show_from_set (c, &showlist); |
2272 | c->function.sfunc = set_width_command; | |
2273 | ||
2274 | add_show_from_set | |
2275 | (add_set_cmd ("height", class_support, | |
c5aa993b | 2276 | var_uinteger, (char *) &lines_per_page, |
c906108c SS |
2277 | "Set number of lines gdb thinks are in a page.", &setlist), |
2278 | &showlist); | |
c5aa993b | 2279 | |
c906108c SS |
2280 | init_page_info (); |
2281 | ||
2282 | /* If the output is not a terminal, don't paginate it. */ | |
d9fcf2fb | 2283 | if (!ui_file_isatty (gdb_stdout)) |
c906108c SS |
2284 | lines_per_page = UINT_MAX; |
2285 | ||
c5aa993b | 2286 | set_width_command ((char *) NULL, 0, c); |
c906108c SS |
2287 | |
2288 | add_show_from_set | |
c5aa993b JM |
2289 | (add_set_cmd ("demangle", class_support, var_boolean, |
2290 | (char *) &demangle, | |
2291 | "Set demangling of encoded C++ names when displaying symbols.", | |
c906108c SS |
2292 | &setprintlist), |
2293 | &showprintlist); | |
2294 | ||
2295 | add_show_from_set | |
2296 | (add_set_cmd ("pagination", class_support, | |
c5aa993b | 2297 | var_boolean, (char *) &pagination_enabled, |
c906108c SS |
2298 | "Set state of pagination.", &setlist), |
2299 | &showlist); | |
4261bedc | 2300 | |
c906108c SS |
2301 | if (xdb_commands) |
2302 | { | |
c5aa993b JM |
2303 | add_com ("am", class_support, pagination_on_command, |
2304 | "Enable pagination"); | |
2305 | add_com ("sm", class_support, pagination_off_command, | |
2306 | "Disable pagination"); | |
c906108c SS |
2307 | } |
2308 | ||
2309 | add_show_from_set | |
c5aa993b JM |
2310 | (add_set_cmd ("sevenbit-strings", class_support, var_boolean, |
2311 | (char *) &sevenbit_strings, | |
2312 | "Set printing of 8-bit characters in strings as \\nnn.", | |
c906108c SS |
2313 | &setprintlist), |
2314 | &showprintlist); | |
2315 | ||
2316 | add_show_from_set | |
c5aa993b JM |
2317 | (add_set_cmd ("asm-demangle", class_support, var_boolean, |
2318 | (char *) &asm_demangle, | |
2319 | "Set demangling of C++ names in disassembly listings.", | |
c906108c SS |
2320 | &setprintlist), |
2321 | &showprintlist); | |
2322 | } | |
2323 | ||
2324 | /* Machine specific function to handle SIGWINCH signal. */ | |
2325 | ||
2326 | #ifdef SIGWINCH_HANDLER_BODY | |
c5aa993b | 2327 | SIGWINCH_HANDLER_BODY |
c906108c | 2328 | #endif |
39424bef | 2329 | |
5683e87a AC |
2330 | /* print routines to handle variable size regs, etc. */ |
2331 | ||
c906108c SS |
2332 | /* temporary storage using circular buffer */ |
2333 | #define NUMCELLS 16 | |
2334 | #define CELLSIZE 32 | |
c5aa993b | 2335 | static char * |
fba45db2 | 2336 | get_cell (void) |
c906108c SS |
2337 | { |
2338 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b JM |
2339 | static int cell = 0; |
2340 | if (++cell >= NUMCELLS) | |
2341 | cell = 0; | |
c906108c SS |
2342 | return buf[cell]; |
2343 | } | |
2344 | ||
d4f3574e SS |
2345 | int |
2346 | strlen_paddr (void) | |
2347 | { | |
79496e2f | 2348 | return (TARGET_ADDR_BIT / 8 * 2); |
d4f3574e SS |
2349 | } |
2350 | ||
c5aa993b | 2351 | char * |
104c1213 | 2352 | paddr (CORE_ADDR addr) |
c906108c | 2353 | { |
79496e2f | 2354 | return phex (addr, TARGET_ADDR_BIT / 8); |
c906108c SS |
2355 | } |
2356 | ||
c5aa993b | 2357 | char * |
104c1213 | 2358 | paddr_nz (CORE_ADDR addr) |
c906108c | 2359 | { |
79496e2f | 2360 | return phex_nz (addr, TARGET_ADDR_BIT / 8); |
c906108c SS |
2361 | } |
2362 | ||
104c1213 JM |
2363 | static void |
2364 | decimal2str (char *paddr_str, char *sign, ULONGEST addr) | |
2365 | { | |
2366 | /* steal code from valprint.c:print_decimal(). Should this worry | |
2367 | about the real size of addr as the above does? */ | |
2368 | unsigned long temp[3]; | |
2369 | int i = 0; | |
2370 | do | |
2371 | { | |
2372 | temp[i] = addr % (1000 * 1000 * 1000); | |
2373 | addr /= (1000 * 1000 * 1000); | |
2374 | i++; | |
2375 | } | |
2376 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
2377 | switch (i) | |
2378 | { | |
2379 | case 1: | |
2380 | sprintf (paddr_str, "%s%lu", | |
2381 | sign, temp[0]); | |
2382 | break; | |
2383 | case 2: | |
2384 | sprintf (paddr_str, "%s%lu%09lu", | |
2385 | sign, temp[1], temp[0]); | |
2386 | break; | |
2387 | case 3: | |
2388 | sprintf (paddr_str, "%s%lu%09lu%09lu", | |
2389 | sign, temp[2], temp[1], temp[0]); | |
2390 | break; | |
2391 | default: | |
e1e9e218 | 2392 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
104c1213 JM |
2393 | } |
2394 | } | |
2395 | ||
2396 | char * | |
2397 | paddr_u (CORE_ADDR addr) | |
2398 | { | |
2399 | char *paddr_str = get_cell (); | |
2400 | decimal2str (paddr_str, "", addr); | |
2401 | return paddr_str; | |
2402 | } | |
2403 | ||
2404 | char * | |
2405 | paddr_d (LONGEST addr) | |
2406 | { | |
2407 | char *paddr_str = get_cell (); | |
2408 | if (addr < 0) | |
2409 | decimal2str (paddr_str, "-", -addr); | |
2410 | else | |
2411 | decimal2str (paddr_str, "", addr); | |
2412 | return paddr_str; | |
2413 | } | |
2414 | ||
5683e87a AC |
2415 | /* eliminate warning from compiler on 32-bit systems */ |
2416 | static int thirty_two = 32; | |
2417 | ||
104c1213 | 2418 | char * |
5683e87a | 2419 | phex (ULONGEST l, int sizeof_l) |
104c1213 | 2420 | { |
5683e87a AC |
2421 | char *str = get_cell (); |
2422 | switch (sizeof_l) | |
104c1213 JM |
2423 | { |
2424 | case 8: | |
5683e87a AC |
2425 | sprintf (str, "%08lx%08lx", |
2426 | (unsigned long) (l >> thirty_two), | |
2427 | (unsigned long) (l & 0xffffffff)); | |
104c1213 JM |
2428 | break; |
2429 | case 4: | |
5683e87a | 2430 | sprintf (str, "%08lx", (unsigned long) l); |
104c1213 JM |
2431 | break; |
2432 | case 2: | |
5683e87a | 2433 | sprintf (str, "%04x", (unsigned short) (l & 0xffff)); |
104c1213 JM |
2434 | break; |
2435 | default: | |
5683e87a AC |
2436 | phex (l, sizeof (l)); |
2437 | break; | |
104c1213 | 2438 | } |
5683e87a | 2439 | return str; |
104c1213 JM |
2440 | } |
2441 | ||
c5aa993b | 2442 | char * |
5683e87a | 2443 | phex_nz (ULONGEST l, int sizeof_l) |
c906108c | 2444 | { |
5683e87a AC |
2445 | char *str = get_cell (); |
2446 | switch (sizeof_l) | |
c906108c | 2447 | { |
c5aa993b JM |
2448 | case 8: |
2449 | { | |
5683e87a | 2450 | unsigned long high = (unsigned long) (l >> thirty_two); |
c5aa993b | 2451 | if (high == 0) |
5683e87a | 2452 | sprintf (str, "%lx", (unsigned long) (l & 0xffffffff)); |
c5aa993b | 2453 | else |
5683e87a AC |
2454 | sprintf (str, "%lx%08lx", |
2455 | high, (unsigned long) (l & 0xffffffff)); | |
c906108c | 2456 | break; |
c5aa993b JM |
2457 | } |
2458 | case 4: | |
5683e87a | 2459 | sprintf (str, "%lx", (unsigned long) l); |
c5aa993b JM |
2460 | break; |
2461 | case 2: | |
5683e87a | 2462 | sprintf (str, "%x", (unsigned short) (l & 0xffff)); |
c5aa993b JM |
2463 | break; |
2464 | default: | |
5683e87a AC |
2465 | phex_nz (l, sizeof (l)); |
2466 | break; | |
c906108c | 2467 | } |
5683e87a | 2468 | return str; |
c906108c | 2469 | } |
ac2e2ef7 AC |
2470 | |
2471 | ||
2472 | /* Convert to / from the hosts pointer to GDB's internal CORE_ADDR | |
2473 | using the target's conversion routines. */ | |
2474 | CORE_ADDR | |
2475 | host_pointer_to_address (void *ptr) | |
2476 | { | |
090a2205 | 2477 | if (sizeof (ptr) != TYPE_LENGTH (builtin_type_void_data_ptr)) |
8e65ff28 AC |
2478 | internal_error (__FILE__, __LINE__, |
2479 | "core_addr_to_void_ptr: bad cast"); | |
090a2205 | 2480 | return POINTER_TO_ADDRESS (builtin_type_void_data_ptr, &ptr); |
ac2e2ef7 AC |
2481 | } |
2482 | ||
2483 | void * | |
2484 | address_to_host_pointer (CORE_ADDR addr) | |
2485 | { | |
2486 | void *ptr; | |
090a2205 | 2487 | if (sizeof (ptr) != TYPE_LENGTH (builtin_type_void_data_ptr)) |
8e65ff28 AC |
2488 | internal_error (__FILE__, __LINE__, |
2489 | "core_addr_to_void_ptr: bad cast"); | |
090a2205 | 2490 | ADDRESS_TO_POINTER (builtin_type_void_data_ptr, &ptr, addr); |
ac2e2ef7 AC |
2491 | return ptr; |
2492 | } | |
03dd37c3 AC |
2493 | |
2494 | /* Convert a CORE_ADDR into a string. */ | |
2495 | const char * | |
2496 | core_addr_to_string (const CORE_ADDR addr) | |
2497 | { | |
2498 | char *str = get_cell (); | |
2499 | strcpy (str, "0x"); | |
2500 | strcat (str, phex_nz (addr, sizeof (addr))); | |
2501 | return str; | |
2502 | } | |
2503 | ||
2504 | /* Convert a string back into a CORE_ADDR. */ | |
2505 | CORE_ADDR | |
2506 | string_to_core_addr (const char *my_string) | |
2507 | { | |
2508 | CORE_ADDR addr = 0; | |
2509 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') | |
2510 | { | |
2511 | /* Assume that it is in decimal. */ | |
2512 | int i; | |
2513 | for (i = 2; my_string[i] != '\0'; i++) | |
2514 | { | |
2515 | if (isdigit (my_string[i])) | |
2516 | addr = (my_string[i] - '0') + (addr * 16); | |
2517 | else if (isxdigit (my_string[i])) | |
2518 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); | |
2519 | else | |
2520 | internal_error (__FILE__, __LINE__, "invalid hex"); | |
2521 | } | |
2522 | } | |
2523 | else | |
2524 | { | |
2525 | /* Assume that it is in decimal. */ | |
2526 | int i; | |
2527 | for (i = 0; my_string[i] != '\0'; i++) | |
2528 | { | |
2529 | if (isdigit (my_string[i])) | |
2530 | addr = (my_string[i] - '0') + (addr * 10); | |
2531 | else | |
2532 | internal_error (__FILE__, __LINE__, "invalid decimal"); | |
2533 | } | |
2534 | } | |
2535 | return addr; | |
2536 | } |