Commit | Line | Data |
---|---|---|
c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
a752853e AC |
2 | Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
3 | 1996, 1997, 1998, 1999, 2000, 2001, 2002 | |
d9fcf2fb | 4 | Free Software Foundation, Inc. |
c906108c | 5 | |
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b JM |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
c906108c 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 | ||
2d1b2124 AC |
57 | #include <sys/param.h> /* For MAXPATHLEN */ |
58 | ||
c906108c SS |
59 | #include <readline/readline.h> |
60 | ||
ed1801df AC |
61 | #ifdef USE_MMALLOC |
62 | #include "mmalloc.h" | |
63 | #endif | |
64 | ||
3c37485b AC |
65 | #ifdef NEED_DECLARATION_MALLOC |
66 | extern PTR malloc (); | |
67 | #endif | |
0e52036f AC |
68 | #ifdef NEED_DECLARATION_REALLOC |
69 | extern PTR realloc (); | |
70 | #endif | |
81b8eb80 AC |
71 | #ifdef NEED_DECLARATION_FREE |
72 | extern void free (); | |
73 | #endif | |
81b8eb80 | 74 | |
917317f4 JM |
75 | #undef XMALLOC |
76 | #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE))) | |
77 | ||
c906108c SS |
78 | /* readline defines this. */ |
79 | #undef savestring | |
80 | ||
507f3c78 | 81 | void (*error_begin_hook) (void); |
c906108c | 82 | |
2acceee2 JM |
83 | /* Holds the last error message issued by gdb */ |
84 | ||
d9fcf2fb | 85 | static struct ui_file *gdb_lasterr; |
2acceee2 | 86 | |
c906108c SS |
87 | /* Prototypes for local functions */ |
88 | ||
d9fcf2fb JM |
89 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
90 | va_list, int); | |
c906108c | 91 | |
d9fcf2fb | 92 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c SS |
93 | |
94 | #if defined (USE_MMALLOC) && !defined (NO_MMCHECK) | |
a14ed312 | 95 | static void malloc_botch (void); |
c906108c SS |
96 | #endif |
97 | ||
a14ed312 | 98 | static void prompt_for_continue (void); |
c906108c | 99 | |
a14ed312 | 100 | static void set_width_command (char *, int, struct cmd_list_element *); |
c906108c | 101 | |
a14ed312 | 102 | static void set_width (void); |
c906108c | 103 | |
c906108c SS |
104 | /* Chain of cleanup actions established with make_cleanup, |
105 | to be executed if an error happens. */ | |
106 | ||
c5aa993b JM |
107 | static struct cleanup *cleanup_chain; /* cleaned up after a failed command */ |
108 | static struct cleanup *final_cleanup_chain; /* cleaned up when gdb exits */ | |
109 | static struct cleanup *run_cleanup_chain; /* cleaned up on each 'run' */ | |
110 | static struct cleanup *exec_cleanup_chain; /* cleaned up on each execution command */ | |
6426a772 JM |
111 | /* cleaned up on each error from within an execution command */ |
112 | static struct cleanup *exec_error_cleanup_chain; | |
43ff13b4 JM |
113 | |
114 | /* Pointer to what is left to do for an execution command after the | |
115 | target stops. Used only in asynchronous mode, by targets that | |
116 | support async execution. The finish and until commands use it. So | |
117 | does the target extended-remote command. */ | |
118 | struct continuation *cmd_continuation; | |
c2d11a7d | 119 | struct continuation *intermediate_continuation; |
c906108c SS |
120 | |
121 | /* Nonzero if we have job control. */ | |
122 | ||
123 | int job_control; | |
124 | ||
125 | /* Nonzero means a quit has been requested. */ | |
126 | ||
127 | int quit_flag; | |
128 | ||
129 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
130 | than waiting until QUIT is executed. Be careful in setting this; | |
131 | code which executes with immediate_quit set has to be very careful | |
132 | about being able to deal with being interrupted at any time. It is | |
133 | almost always better to use QUIT; the only exception I can think of | |
134 | is being able to quit out of a system call (using EINTR loses if | |
135 | the SIGINT happens between the previous QUIT and the system call). | |
136 | To immediately quit in the case in which a SIGINT happens between | |
137 | the previous QUIT and setting immediate_quit (desirable anytime we | |
138 | expect to block), call QUIT after setting immediate_quit. */ | |
139 | ||
140 | int immediate_quit; | |
141 | ||
142 | /* Nonzero means that encoded C++ names should be printed out in their | |
143 | C++ form rather than raw. */ | |
144 | ||
145 | int demangle = 1; | |
146 | ||
147 | /* Nonzero means that encoded C++ names should be printed out in their | |
148 | C++ form even in assembler language displays. If this is set, but | |
149 | DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */ | |
150 | ||
151 | int asm_demangle = 0; | |
152 | ||
153 | /* Nonzero means that strings with character values >0x7F should be printed | |
154 | as octal escapes. Zero means just print the value (e.g. it's an | |
155 | international character, and the terminal or window can cope.) */ | |
156 | ||
157 | int sevenbit_strings = 0; | |
158 | ||
159 | /* String to be printed before error messages, if any. */ | |
160 | ||
161 | char *error_pre_print; | |
162 | ||
163 | /* String to be printed before quit messages, if any. */ | |
164 | ||
165 | char *quit_pre_print; | |
166 | ||
167 | /* String to be printed before warning messages, if any. */ | |
168 | ||
169 | char *warning_pre_print = "\nwarning: "; | |
170 | ||
171 | int pagination_enabled = 1; | |
c906108c | 172 | \f |
c5aa993b | 173 | |
c906108c SS |
174 | /* Add a new cleanup to the cleanup_chain, |
175 | and return the previous chain pointer | |
176 | to be passed later to do_cleanups or discard_cleanups. | |
177 | Args are FUNCTION to clean up with, and ARG to pass to it. */ | |
178 | ||
179 | struct cleanup * | |
e4005526 | 180 | make_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 181 | { |
c5aa993b | 182 | return make_my_cleanup (&cleanup_chain, function, arg); |
c906108c SS |
183 | } |
184 | ||
185 | struct cleanup * | |
e4005526 | 186 | make_final_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 187 | { |
c5aa993b | 188 | return make_my_cleanup (&final_cleanup_chain, function, arg); |
c906108c | 189 | } |
7a292a7a | 190 | |
c906108c | 191 | struct cleanup * |
e4005526 | 192 | make_run_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 193 | { |
c5aa993b | 194 | return make_my_cleanup (&run_cleanup_chain, function, arg); |
c906108c | 195 | } |
7a292a7a | 196 | |
43ff13b4 | 197 | struct cleanup * |
e4005526 | 198 | make_exec_cleanup (make_cleanup_ftype *function, void *arg) |
43ff13b4 | 199 | { |
c5aa993b | 200 | return make_my_cleanup (&exec_cleanup_chain, function, arg); |
43ff13b4 JM |
201 | } |
202 | ||
6426a772 | 203 | struct cleanup * |
e4005526 | 204 | make_exec_error_cleanup (make_cleanup_ftype *function, void *arg) |
6426a772 JM |
205 | { |
206 | return make_my_cleanup (&exec_error_cleanup_chain, function, arg); | |
207 | } | |
208 | ||
7a292a7a | 209 | static void |
fba45db2 | 210 | do_freeargv (void *arg) |
7a292a7a | 211 | { |
c5aa993b | 212 | freeargv ((char **) arg); |
7a292a7a SS |
213 | } |
214 | ||
215 | struct cleanup * | |
fba45db2 | 216 | make_cleanup_freeargv (char **arg) |
7a292a7a SS |
217 | { |
218 | return make_my_cleanup (&cleanup_chain, do_freeargv, arg); | |
219 | } | |
220 | ||
5c65bbb6 AC |
221 | static void |
222 | do_bfd_close_cleanup (void *arg) | |
223 | { | |
224 | bfd_close (arg); | |
225 | } | |
226 | ||
227 | struct cleanup * | |
228 | make_cleanup_bfd_close (bfd *abfd) | |
229 | { | |
230 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
231 | } | |
232 | ||
f5ff8c83 AC |
233 | static void |
234 | do_close_cleanup (void *arg) | |
235 | { | |
f042532c AC |
236 | int *fd = arg; |
237 | close (*fd); | |
238 | xfree (fd); | |
f5ff8c83 AC |
239 | } |
240 | ||
241 | struct cleanup * | |
242 | make_cleanup_close (int fd) | |
243 | { | |
f042532c AC |
244 | int *saved_fd = xmalloc (sizeof (fd)); |
245 | *saved_fd = fd; | |
246 | return make_cleanup (do_close_cleanup, saved_fd); | |
f5ff8c83 AC |
247 | } |
248 | ||
11cf8741 | 249 | static void |
d9fcf2fb | 250 | do_ui_file_delete (void *arg) |
11cf8741 | 251 | { |
d9fcf2fb | 252 | ui_file_delete (arg); |
11cf8741 JM |
253 | } |
254 | ||
255 | struct cleanup * | |
d9fcf2fb | 256 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 257 | { |
d9fcf2fb | 258 | return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg); |
11cf8741 JM |
259 | } |
260 | ||
c906108c | 261 | struct cleanup * |
e4005526 AC |
262 | make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function, |
263 | void *arg) | |
c906108c SS |
264 | { |
265 | register struct cleanup *new | |
c5aa993b | 266 | = (struct cleanup *) xmalloc (sizeof (struct cleanup)); |
c906108c SS |
267 | register struct cleanup *old_chain = *pmy_chain; |
268 | ||
269 | new->next = *pmy_chain; | |
270 | new->function = function; | |
271 | new->arg = arg; | |
272 | *pmy_chain = new; | |
273 | ||
274 | return old_chain; | |
275 | } | |
276 | ||
277 | /* Discard cleanups and do the actions they describe | |
278 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
279 | ||
280 | void | |
fba45db2 | 281 | do_cleanups (register struct cleanup *old_chain) |
c906108c | 282 | { |
c5aa993b | 283 | do_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
284 | } |
285 | ||
286 | void | |
fba45db2 | 287 | do_final_cleanups (register struct cleanup *old_chain) |
c906108c | 288 | { |
c5aa993b | 289 | do_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
290 | } |
291 | ||
292 | void | |
fba45db2 | 293 | do_run_cleanups (register struct cleanup *old_chain) |
c906108c | 294 | { |
c5aa993b | 295 | do_my_cleanups (&run_cleanup_chain, old_chain); |
c906108c SS |
296 | } |
297 | ||
43ff13b4 | 298 | void |
fba45db2 | 299 | do_exec_cleanups (register struct cleanup *old_chain) |
43ff13b4 | 300 | { |
c5aa993b | 301 | do_my_cleanups (&exec_cleanup_chain, old_chain); |
43ff13b4 JM |
302 | } |
303 | ||
6426a772 | 304 | void |
fba45db2 | 305 | do_exec_error_cleanups (register struct cleanup *old_chain) |
6426a772 JM |
306 | { |
307 | do_my_cleanups (&exec_error_cleanup_chain, old_chain); | |
308 | } | |
309 | ||
c906108c | 310 | void |
fba45db2 KB |
311 | do_my_cleanups (register struct cleanup **pmy_chain, |
312 | register struct cleanup *old_chain) | |
c906108c SS |
313 | { |
314 | register struct cleanup *ptr; | |
315 | while ((ptr = *pmy_chain) != old_chain) | |
316 | { | |
317 | *pmy_chain = ptr->next; /* Do this first incase recursion */ | |
318 | (*ptr->function) (ptr->arg); | |
b8c9b27d | 319 | xfree (ptr); |
c906108c SS |
320 | } |
321 | } | |
322 | ||
323 | /* Discard cleanups, not doing the actions they describe, | |
324 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
325 | ||
326 | void | |
fba45db2 | 327 | discard_cleanups (register struct cleanup *old_chain) |
c906108c | 328 | { |
c5aa993b | 329 | discard_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
330 | } |
331 | ||
332 | void | |
fba45db2 | 333 | discard_final_cleanups (register struct cleanup *old_chain) |
c906108c | 334 | { |
c5aa993b | 335 | discard_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
336 | } |
337 | ||
6426a772 | 338 | void |
fba45db2 | 339 | discard_exec_error_cleanups (register struct cleanup *old_chain) |
6426a772 JM |
340 | { |
341 | discard_my_cleanups (&exec_error_cleanup_chain, old_chain); | |
342 | } | |
343 | ||
c906108c | 344 | void |
fba45db2 KB |
345 | discard_my_cleanups (register struct cleanup **pmy_chain, |
346 | register struct cleanup *old_chain) | |
c906108c SS |
347 | { |
348 | register struct cleanup *ptr; | |
349 | while ((ptr = *pmy_chain) != old_chain) | |
350 | { | |
351 | *pmy_chain = ptr->next; | |
b8c9b27d | 352 | xfree (ptr); |
c906108c SS |
353 | } |
354 | } | |
355 | ||
356 | /* Set the cleanup_chain to 0, and return the old cleanup chain. */ | |
357 | struct cleanup * | |
fba45db2 | 358 | save_cleanups (void) |
c906108c | 359 | { |
c5aa993b | 360 | return save_my_cleanups (&cleanup_chain); |
c906108c SS |
361 | } |
362 | ||
363 | struct cleanup * | |
fba45db2 | 364 | save_final_cleanups (void) |
c906108c | 365 | { |
c5aa993b | 366 | return save_my_cleanups (&final_cleanup_chain); |
c906108c SS |
367 | } |
368 | ||
369 | struct cleanup * | |
fba45db2 | 370 | save_my_cleanups (struct cleanup **pmy_chain) |
c906108c SS |
371 | { |
372 | struct cleanup *old_chain = *pmy_chain; | |
373 | ||
374 | *pmy_chain = 0; | |
375 | return old_chain; | |
376 | } | |
377 | ||
378 | /* Restore the cleanup chain from a previously saved chain. */ | |
379 | void | |
fba45db2 | 380 | restore_cleanups (struct cleanup *chain) |
c906108c | 381 | { |
c5aa993b | 382 | restore_my_cleanups (&cleanup_chain, chain); |
c906108c SS |
383 | } |
384 | ||
385 | void | |
fba45db2 | 386 | restore_final_cleanups (struct cleanup *chain) |
c906108c | 387 | { |
c5aa993b | 388 | restore_my_cleanups (&final_cleanup_chain, chain); |
c906108c SS |
389 | } |
390 | ||
391 | void | |
fba45db2 | 392 | restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain) |
c906108c SS |
393 | { |
394 | *pmy_chain = chain; | |
395 | } | |
396 | ||
397 | /* This function is useful for cleanups. | |
398 | Do | |
399 | ||
c5aa993b JM |
400 | foo = xmalloc (...); |
401 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
402 | |
403 | to arrange to free the object thus allocated. */ | |
404 | ||
405 | void | |
2f9429ae | 406 | free_current_contents (void *ptr) |
c906108c | 407 | { |
2f9429ae | 408 | void **location = ptr; |
e2f9c474 | 409 | if (location == NULL) |
8e65ff28 AC |
410 | internal_error (__FILE__, __LINE__, |
411 | "free_current_contents: NULL pointer"); | |
2f9429ae | 412 | if (*location != NULL) |
e2f9c474 | 413 | { |
b8c9b27d | 414 | xfree (*location); |
e2f9c474 AC |
415 | *location = NULL; |
416 | } | |
c906108c SS |
417 | } |
418 | ||
419 | /* Provide a known function that does nothing, to use as a base for | |
420 | for a possibly long chain of cleanups. This is useful where we | |
421 | use the cleanup chain for handling normal cleanups as well as dealing | |
422 | with cleanups that need to be done as a result of a call to error(). | |
423 | In such cases, we may not be certain where the first cleanup is, unless | |
424 | we have a do-nothing one to always use as the base. */ | |
425 | ||
426 | /* ARGSUSED */ | |
427 | void | |
e4005526 | 428 | null_cleanup (void *arg) |
c906108c SS |
429 | { |
430 | } | |
431 | ||
74f832da | 432 | /* Add a continuation to the continuation list, the global list |
c2d11a7d | 433 | cmd_continuation. The new continuation will be added at the front.*/ |
43ff13b4 | 434 | void |
74f832da KB |
435 | add_continuation (void (*continuation_hook) (struct continuation_arg *), |
436 | struct continuation_arg *arg_list) | |
43ff13b4 | 437 | { |
c5aa993b | 438 | struct continuation *continuation_ptr; |
43ff13b4 | 439 | |
c5aa993b JM |
440 | continuation_ptr = (struct continuation *) xmalloc (sizeof (struct continuation)); |
441 | continuation_ptr->continuation_hook = continuation_hook; | |
442 | continuation_ptr->arg_list = arg_list; | |
443 | continuation_ptr->next = cmd_continuation; | |
444 | cmd_continuation = continuation_ptr; | |
43ff13b4 JM |
445 | } |
446 | ||
447 | /* Walk down the cmd_continuation list, and execute all the | |
c2d11a7d JM |
448 | continuations. There is a problem though. In some cases new |
449 | continuations may be added while we are in the middle of this | |
450 | loop. If this happens they will be added in the front, and done | |
451 | before we have a chance of exhausting those that were already | |
452 | there. We need to then save the beginning of the list in a pointer | |
453 | and do the continuations from there on, instead of using the | |
454 | global beginning of list as our iteration pointer.*/ | |
c5aa993b | 455 | void |
fba45db2 | 456 | do_all_continuations (void) |
c2d11a7d JM |
457 | { |
458 | struct continuation *continuation_ptr; | |
459 | struct continuation *saved_continuation; | |
460 | ||
461 | /* Copy the list header into another pointer, and set the global | |
462 | list header to null, so that the global list can change as a side | |
463 | effect of invoking the continuations and the processing of | |
464 | the preexisting continuations will not be affected. */ | |
465 | continuation_ptr = cmd_continuation; | |
466 | cmd_continuation = NULL; | |
467 | ||
468 | /* Work now on the list we have set aside. */ | |
469 | while (continuation_ptr) | |
470 | { | |
471 | (continuation_ptr->continuation_hook) (continuation_ptr->arg_list); | |
472 | saved_continuation = continuation_ptr; | |
473 | continuation_ptr = continuation_ptr->next; | |
b8c9b27d | 474 | xfree (saved_continuation); |
c2d11a7d JM |
475 | } |
476 | } | |
477 | ||
478 | /* Walk down the cmd_continuation list, and get rid of all the | |
479 | continuations. */ | |
480 | void | |
fba45db2 | 481 | discard_all_continuations (void) |
43ff13b4 | 482 | { |
c5aa993b | 483 | struct continuation *continuation_ptr; |
43ff13b4 | 484 | |
c5aa993b JM |
485 | while (cmd_continuation) |
486 | { | |
c5aa993b JM |
487 | continuation_ptr = cmd_continuation; |
488 | cmd_continuation = continuation_ptr->next; | |
b8c9b27d | 489 | xfree (continuation_ptr); |
c5aa993b | 490 | } |
43ff13b4 | 491 | } |
c2c6d25f | 492 | |
57e687d9 | 493 | /* Add a continuation to the continuation list, the global list |
c2d11a7d JM |
494 | intermediate_continuation. The new continuation will be added at the front.*/ |
495 | void | |
74f832da KB |
496 | add_intermediate_continuation (void (*continuation_hook) |
497 | (struct continuation_arg *), | |
498 | struct continuation_arg *arg_list) | |
c2d11a7d JM |
499 | { |
500 | struct continuation *continuation_ptr; | |
501 | ||
502 | continuation_ptr = (struct continuation *) xmalloc (sizeof (struct continuation)); | |
503 | continuation_ptr->continuation_hook = continuation_hook; | |
504 | continuation_ptr->arg_list = arg_list; | |
505 | continuation_ptr->next = intermediate_continuation; | |
506 | intermediate_continuation = continuation_ptr; | |
507 | } | |
508 | ||
509 | /* Walk down the cmd_continuation list, and execute all the | |
510 | continuations. There is a problem though. In some cases new | |
511 | continuations may be added while we are in the middle of this | |
512 | loop. If this happens they will be added in the front, and done | |
513 | before we have a chance of exhausting those that were already | |
514 | there. We need to then save the beginning of the list in a pointer | |
515 | and do the continuations from there on, instead of using the | |
516 | global beginning of list as our iteration pointer.*/ | |
517 | void | |
fba45db2 | 518 | do_all_intermediate_continuations (void) |
c2d11a7d JM |
519 | { |
520 | struct continuation *continuation_ptr; | |
521 | struct continuation *saved_continuation; | |
522 | ||
523 | /* Copy the list header into another pointer, and set the global | |
524 | list header to null, so that the global list can change as a side | |
525 | effect of invoking the continuations and the processing of | |
526 | the preexisting continuations will not be affected. */ | |
527 | continuation_ptr = intermediate_continuation; | |
528 | intermediate_continuation = NULL; | |
529 | ||
530 | /* Work now on the list we have set aside. */ | |
531 | while (continuation_ptr) | |
532 | { | |
533 | (continuation_ptr->continuation_hook) (continuation_ptr->arg_list); | |
534 | saved_continuation = continuation_ptr; | |
535 | continuation_ptr = continuation_ptr->next; | |
b8c9b27d | 536 | xfree (saved_continuation); |
c2d11a7d JM |
537 | } |
538 | } | |
539 | ||
c2c6d25f JM |
540 | /* Walk down the cmd_continuation list, and get rid of all the |
541 | continuations. */ | |
542 | void | |
fba45db2 | 543 | discard_all_intermediate_continuations (void) |
c2c6d25f JM |
544 | { |
545 | struct continuation *continuation_ptr; | |
546 | ||
c2d11a7d | 547 | while (intermediate_continuation) |
c2c6d25f | 548 | { |
c2d11a7d JM |
549 | continuation_ptr = intermediate_continuation; |
550 | intermediate_continuation = continuation_ptr->next; | |
b8c9b27d | 551 | xfree (continuation_ptr); |
c2c6d25f JM |
552 | } |
553 | } | |
554 | ||
c906108c | 555 | \f |
c5aa993b | 556 | |
c906108c SS |
557 | /* Print a warning message. Way to use this is to call warning_begin, |
558 | output the warning message (use unfiltered output to gdb_stderr), | |
559 | ending in a newline. There is not currently a warning_end that you | |
560 | call afterwards, but such a thing might be added if it is useful | |
561 | for a GUI to separate warning messages from other output. | |
562 | ||
563 | FIXME: Why do warnings use unfiltered output and errors filtered? | |
564 | Is this anything other than a historical accident? */ | |
565 | ||
566 | void | |
fba45db2 | 567 | warning_begin (void) |
c906108c SS |
568 | { |
569 | target_terminal_ours (); | |
c5aa993b | 570 | wrap_here (""); /* Force out any buffered output */ |
c906108c SS |
571 | gdb_flush (gdb_stdout); |
572 | if (warning_pre_print) | |
573 | fprintf_unfiltered (gdb_stderr, warning_pre_print); | |
574 | } | |
575 | ||
576 | /* Print a warning message. | |
577 | The first argument STRING is the warning message, used as a fprintf string, | |
578 | and the remaining args are passed as arguments to it. | |
579 | The primary difference between warnings and errors is that a warning | |
580 | does not force the return to command level. */ | |
581 | ||
c906108c | 582 | void |
c5aa993b | 583 | warning (const char *string,...) |
c906108c SS |
584 | { |
585 | va_list args; | |
c906108c | 586 | va_start (args, string); |
c906108c SS |
587 | if (warning_hook) |
588 | (*warning_hook) (string, args); | |
589 | else | |
c5aa993b JM |
590 | { |
591 | warning_begin (); | |
592 | vfprintf_unfiltered (gdb_stderr, string, args); | |
593 | fprintf_unfiltered (gdb_stderr, "\n"); | |
594 | va_end (args); | |
595 | } | |
c906108c SS |
596 | } |
597 | ||
598 | /* Start the printing of an error message. Way to use this is to call | |
599 | this, output the error message (use filtered output to gdb_stderr | |
600 | (FIXME: Some callers, like memory_error, use gdb_stdout)), ending | |
601 | in a newline, and then call return_to_top_level (RETURN_ERROR). | |
602 | error() provides a convenient way to do this for the special case | |
603 | that the error message can be formatted with a single printf call, | |
604 | but this is more general. */ | |
605 | void | |
fba45db2 | 606 | error_begin (void) |
c906108c SS |
607 | { |
608 | if (error_begin_hook) | |
609 | error_begin_hook (); | |
610 | ||
611 | target_terminal_ours (); | |
c5aa993b | 612 | wrap_here (""); /* Force out any buffered output */ |
c906108c SS |
613 | gdb_flush (gdb_stdout); |
614 | ||
615 | annotate_error_begin (); | |
616 | ||
617 | if (error_pre_print) | |
618 | fprintf_filtered (gdb_stderr, error_pre_print); | |
619 | } | |
620 | ||
621 | /* Print an error message and return to command level. | |
622 | The first argument STRING is the error message, used as a fprintf string, | |
623 | and the remaining args are passed as arguments to it. */ | |
624 | ||
4ce44c66 JM |
625 | NORETURN void |
626 | verror (const char *string, va_list args) | |
627 | { | |
c2d11a7d JM |
628 | char *err_string; |
629 | struct cleanup *err_string_cleanup; | |
4ce44c66 | 630 | /* FIXME: cagney/1999-11-10: All error calls should come here. |
e26cc349 | 631 | Unfortunately some code uses the sequence: error_begin(); print |
4ce44c66 JM |
632 | error message; return_to_top_level. That code should be |
633 | flushed. */ | |
634 | error_begin (); | |
c2d11a7d JM |
635 | /* NOTE: It's tempting to just do the following... |
636 | vfprintf_filtered (gdb_stderr, string, args); | |
637 | and then follow with a similar looking statement to cause the message | |
638 | to also go to gdb_lasterr. But if we do this, we'll be traversing the | |
639 | va_list twice which works on some platforms and fails miserably on | |
640 | others. */ | |
641 | /* Save it as the last error */ | |
d9fcf2fb | 642 | ui_file_rewind (gdb_lasterr); |
4ce44c66 | 643 | vfprintf_filtered (gdb_lasterr, string, args); |
c2d11a7d JM |
644 | /* Retrieve the last error and print it to gdb_stderr */ |
645 | err_string = error_last_message (); | |
b8c9b27d | 646 | err_string_cleanup = make_cleanup (xfree, err_string); |
c2d11a7d JM |
647 | fputs_filtered (err_string, gdb_stderr); |
648 | fprintf_filtered (gdb_stderr, "\n"); | |
649 | do_cleanups (err_string_cleanup); | |
4ce44c66 JM |
650 | return_to_top_level (RETURN_ERROR); |
651 | } | |
652 | ||
c906108c | 653 | NORETURN void |
c5aa993b | 654 | error (const char *string,...) |
c906108c SS |
655 | { |
656 | va_list args; | |
c906108c | 657 | va_start (args, string); |
4ce44c66 JM |
658 | verror (string, args); |
659 | va_end (args); | |
c906108c SS |
660 | } |
661 | ||
2acceee2 | 662 | NORETURN void |
d9fcf2fb | 663 | error_stream (struct ui_file *stream) |
2acceee2 | 664 | { |
4ce44c66 | 665 | long size; |
d9fcf2fb | 666 | char *msg = ui_file_xstrdup (stream, &size); |
b8c9b27d | 667 | make_cleanup (xfree, msg); |
4ce44c66 | 668 | error ("%s", msg); |
2acceee2 JM |
669 | } |
670 | ||
671 | /* Get the last error message issued by gdb */ | |
672 | ||
673 | char * | |
674 | error_last_message (void) | |
675 | { | |
4ce44c66 | 676 | long len; |
d9fcf2fb | 677 | return ui_file_xstrdup (gdb_lasterr, &len); |
2acceee2 | 678 | } |
4ce44c66 | 679 | |
2acceee2 JM |
680 | /* This is to be called by main() at the very beginning */ |
681 | ||
682 | void | |
683 | error_init (void) | |
684 | { | |
4ce44c66 | 685 | gdb_lasterr = mem_fileopen (); |
2acceee2 | 686 | } |
c906108c | 687 | |
96baa820 JM |
688 | /* Print a message reporting an internal error. Ask the user if they |
689 | want to continue, dump core, or just exit. */ | |
c906108c | 690 | |
c906108c | 691 | NORETURN void |
8e65ff28 AC |
692 | internal_verror (const char *file, int line, |
693 | const char *fmt, va_list ap) | |
c906108c | 694 | { |
96baa820 JM |
695 | static char msg[] = "Internal GDB error: recursive internal error.\n"; |
696 | static int dejavu = 0; | |
375fc983 | 697 | int quit_p; |
7be570e7 | 698 | int dump_core_p; |
c906108c | 699 | |
96baa820 JM |
700 | /* don't allow infinite error recursion. */ |
701 | switch (dejavu) | |
702 | { | |
703 | case 0: | |
704 | dejavu = 1; | |
705 | break; | |
706 | case 1: | |
707 | dejavu = 2; | |
708 | fputs_unfiltered (msg, gdb_stderr); | |
5c7dd748 | 709 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
96baa820 JM |
710 | default: |
711 | dejavu = 3; | |
712 | write (STDERR_FILENO, msg, sizeof (msg)); | |
713 | exit (1); | |
714 | } | |
c906108c | 715 | |
96baa820 | 716 | /* Try to get the message out */ |
4261bedc | 717 | target_terminal_ours (); |
8e65ff28 | 718 | fprintf_unfiltered (gdb_stderr, "%s:%d: gdb-internal-error: ", file, line); |
4ce44c66 | 719 | vfprintf_unfiltered (gdb_stderr, fmt, ap); |
96baa820 | 720 | fputs_unfiltered ("\n", gdb_stderr); |
c906108c | 721 | |
375fc983 | 722 | /* Default (yes/batch case) is to quit GDB. When in batch mode this |
7be570e7 | 723 | lessens the likelhood of GDB going into an infinate loop. */ |
375fc983 | 724 | quit_p = query ("\ |
62fd9fad | 725 | An internal GDB error was detected. This may make further\n\ |
375fc983 | 726 | debugging unreliable. Quit this debugging session? "); |
7be570e7 | 727 | |
375fc983 AC |
728 | /* Default (yes/batch case) is to dump core. This leaves a GDB |
729 | dropping so that it is easier to see that something went wrong to | |
730 | GDB. */ | |
7be570e7 JM |
731 | dump_core_p = query ("\ |
732 | Create a core file containing the current state of GDB? "); | |
733 | ||
375fc983 | 734 | if (quit_p) |
7be570e7 JM |
735 | { |
736 | if (dump_core_p) | |
375fc983 AC |
737 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
738 | else | |
739 | exit (1); | |
7be570e7 JM |
740 | } |
741 | else | |
742 | { | |
743 | if (dump_core_p) | |
375fc983 AC |
744 | { |
745 | if (fork () == 0) | |
746 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
747 | } | |
7be570e7 | 748 | } |
96baa820 JM |
749 | |
750 | dejavu = 0; | |
751 | return_to_top_level (RETURN_ERROR); | |
c906108c SS |
752 | } |
753 | ||
4ce44c66 | 754 | NORETURN void |
8e65ff28 | 755 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
756 | { |
757 | va_list ap; | |
758 | va_start (ap, string); | |
4261bedc | 759 | |
8e65ff28 | 760 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
761 | va_end (ap); |
762 | } | |
763 | ||
c906108c SS |
764 | /* The strerror() function can return NULL for errno values that are |
765 | out of range. Provide a "safe" version that always returns a | |
766 | printable string. */ | |
767 | ||
768 | char * | |
fba45db2 | 769 | safe_strerror (int errnum) |
c906108c SS |
770 | { |
771 | char *msg; | |
772 | static char buf[32]; | |
773 | ||
774 | if ((msg = strerror (errnum)) == NULL) | |
775 | { | |
776 | sprintf (buf, "(undocumented errno %d)", errnum); | |
777 | msg = buf; | |
778 | } | |
779 | return (msg); | |
780 | } | |
781 | ||
c906108c SS |
782 | /* Print the system error message for errno, and also mention STRING |
783 | as the file name for which the error was encountered. | |
784 | Then return to command level. */ | |
785 | ||
786 | NORETURN void | |
fba45db2 | 787 | perror_with_name (char *string) |
c906108c SS |
788 | { |
789 | char *err; | |
790 | char *combined; | |
791 | ||
792 | err = safe_strerror (errno); | |
793 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
794 | strcpy (combined, string); | |
795 | strcat (combined, ": "); | |
796 | strcat (combined, err); | |
797 | ||
798 | /* I understand setting these is a matter of taste. Still, some people | |
799 | may clear errno but not know about bfd_error. Doing this here is not | |
800 | unreasonable. */ | |
801 | bfd_set_error (bfd_error_no_error); | |
802 | errno = 0; | |
803 | ||
c5aa993b | 804 | error ("%s.", combined); |
c906108c SS |
805 | } |
806 | ||
807 | /* Print the system error message for ERRCODE, and also mention STRING | |
808 | as the file name for which the error was encountered. */ | |
809 | ||
810 | void | |
fba45db2 | 811 | print_sys_errmsg (char *string, int errcode) |
c906108c SS |
812 | { |
813 | char *err; | |
814 | char *combined; | |
815 | ||
816 | err = safe_strerror (errcode); | |
817 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
818 | strcpy (combined, string); | |
819 | strcat (combined, ": "); | |
820 | strcat (combined, err); | |
821 | ||
822 | /* We want anything which was printed on stdout to come out first, before | |
823 | this message. */ | |
824 | gdb_flush (gdb_stdout); | |
825 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
826 | } | |
827 | ||
828 | /* Control C eventually causes this to be called, at a convenient time. */ | |
829 | ||
830 | void | |
fba45db2 | 831 | quit (void) |
c906108c | 832 | { |
819cc324 | 833 | struct serial *gdb_stdout_serial = serial_fdopen (1); |
c906108c SS |
834 | |
835 | target_terminal_ours (); | |
836 | ||
837 | /* We want all output to appear now, before we print "Quit". We | |
838 | have 3 levels of buffering we have to flush (it's possible that | |
839 | some of these should be changed to flush the lower-level ones | |
840 | too): */ | |
841 | ||
842 | /* 1. The _filtered buffer. */ | |
c5aa993b | 843 | wrap_here ((char *) 0); |
c906108c SS |
844 | |
845 | /* 2. The stdio buffer. */ | |
846 | gdb_flush (gdb_stdout); | |
847 | gdb_flush (gdb_stderr); | |
848 | ||
849 | /* 3. The system-level buffer. */ | |
2cd58942 AC |
850 | serial_drain_output (gdb_stdout_serial); |
851 | serial_un_fdopen (gdb_stdout_serial); | |
c906108c SS |
852 | |
853 | annotate_error_begin (); | |
854 | ||
855 | /* Don't use *_filtered; we don't want to prompt the user to continue. */ | |
856 | if (quit_pre_print) | |
857 | fprintf_unfiltered (gdb_stderr, quit_pre_print); | |
858 | ||
7be570e7 JM |
859 | #ifdef __MSDOS__ |
860 | /* No steenking SIGINT will ever be coming our way when the | |
861 | program is resumed. Don't lie. */ | |
862 | fprintf_unfiltered (gdb_stderr, "Quit\n"); | |
863 | #else | |
c906108c | 864 | if (job_control |
c5aa993b JM |
865 | /* If there is no terminal switching for this target, then we can't |
866 | possibly get screwed by the lack of job control. */ | |
c906108c SS |
867 | || current_target.to_terminal_ours == NULL) |
868 | fprintf_unfiltered (gdb_stderr, "Quit\n"); | |
869 | else | |
870 | fprintf_unfiltered (gdb_stderr, | |
c5aa993b | 871 | "Quit (expect signal SIGINT when the program is resumed)\n"); |
7be570e7 | 872 | #endif |
c906108c SS |
873 | return_to_top_level (RETURN_QUIT); |
874 | } | |
875 | ||
c906108c | 876 | /* Control C comes here */ |
c906108c | 877 | void |
fba45db2 | 878 | request_quit (int signo) |
c906108c SS |
879 | { |
880 | quit_flag = 1; | |
881 | /* Restore the signal handler. Harmless with BSD-style signals, needed | |
882 | for System V-style signals. So just always do it, rather than worrying | |
883 | about USG defines and stuff like that. */ | |
884 | signal (signo, request_quit); | |
885 | ||
886 | #ifdef REQUEST_QUIT | |
887 | REQUEST_QUIT; | |
888 | #else | |
c5aa993b | 889 | if (immediate_quit) |
c906108c SS |
890 | quit (); |
891 | #endif | |
892 | } | |
c906108c SS |
893 | \f |
894 | /* Memory management stuff (malloc friends). */ | |
895 | ||
c906108c SS |
896 | #if !defined (USE_MMALLOC) |
897 | ||
c0e61796 AC |
898 | /* NOTE: These must use PTR so that their definition matches the |
899 | declaration found in "mmalloc.h". */ | |
ed9a39eb | 900 | |
ed1801df AC |
901 | static void * |
902 | mmalloc (void *md, size_t size) | |
c906108c | 903 | { |
c0e61796 | 904 | return malloc (size); /* NOTE: GDB's only call to malloc() */ |
c906108c SS |
905 | } |
906 | ||
ed1801df AC |
907 | static void * |
908 | mrealloc (void *md, void *ptr, size_t size) | |
c906108c | 909 | { |
c5aa993b | 910 | if (ptr == 0) /* Guard against old realloc's */ |
c0e61796 | 911 | return mmalloc (md, size); |
c906108c | 912 | else |
c0e61796 AC |
913 | return realloc (ptr, size); /* NOTE: GDB's only call to ralloc() */ |
914 | } | |
915 | ||
ed1801df AC |
916 | static void * |
917 | mcalloc (void *md, size_t number, size_t size) | |
c0e61796 AC |
918 | { |
919 | return calloc (number, size); /* NOTE: GDB's only call to calloc() */ | |
c906108c SS |
920 | } |
921 | ||
ed1801df AC |
922 | static void |
923 | mfree (void *md, void *ptr) | |
c906108c | 924 | { |
c0e61796 | 925 | free (ptr); /* NOTE: GDB's only call to free() */ |
c906108c SS |
926 | } |
927 | ||
c5aa993b | 928 | #endif /* USE_MMALLOC */ |
c906108c SS |
929 | |
930 | #if !defined (USE_MMALLOC) || defined (NO_MMCHECK) | |
931 | ||
932 | void | |
082faf24 | 933 | init_malloc (void *md) |
c906108c SS |
934 | { |
935 | } | |
936 | ||
937 | #else /* Have mmalloc and want corruption checking */ | |
938 | ||
939 | static void | |
fba45db2 | 940 | malloc_botch (void) |
c906108c | 941 | { |
96baa820 | 942 | fprintf_unfiltered (gdb_stderr, "Memory corruption\n"); |
e1e9e218 | 943 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
944 | } |
945 | ||
946 | /* Attempt to install hooks in mmalloc/mrealloc/mfree for the heap specified | |
947 | by MD, to detect memory corruption. Note that MD may be NULL to specify | |
948 | the default heap that grows via sbrk. | |
949 | ||
950 | Note that for freshly created regions, we must call mmcheckf prior to any | |
951 | mallocs in the region. Otherwise, any region which was allocated prior to | |
952 | installing the checking hooks, which is later reallocated or freed, will | |
953 | fail the checks! The mmcheck function only allows initial hooks to be | |
954 | installed before the first mmalloc. However, anytime after we have called | |
955 | mmcheck the first time to install the checking hooks, we can call it again | |
956 | to update the function pointer to the memory corruption handler. | |
957 | ||
958 | Returns zero on failure, non-zero on success. */ | |
959 | ||
960 | #ifndef MMCHECK_FORCE | |
961 | #define MMCHECK_FORCE 0 | |
962 | #endif | |
963 | ||
964 | void | |
082faf24 | 965 | init_malloc (void *md) |
c906108c SS |
966 | { |
967 | if (!mmcheckf (md, malloc_botch, MMCHECK_FORCE)) | |
968 | { | |
969 | /* Don't use warning(), which relies on current_target being set | |
c5aa993b JM |
970 | to something other than dummy_target, until after |
971 | initialize_all_files(). */ | |
c906108c SS |
972 | |
973 | fprintf_unfiltered | |
974 | (gdb_stderr, "warning: failed to install memory consistency checks; "); | |
975 | fprintf_unfiltered | |
976 | (gdb_stderr, "configuration should define NO_MMCHECK or MMCHECK_FORCE\n"); | |
977 | } | |
978 | ||
979 | mmtrace (); | |
980 | } | |
981 | ||
982 | #endif /* Have mmalloc and want corruption checking */ | |
983 | ||
984 | /* Called when a memory allocation fails, with the number of bytes of | |
985 | memory requested in SIZE. */ | |
986 | ||
987 | NORETURN void | |
fba45db2 | 988 | nomem (long size) |
c906108c SS |
989 | { |
990 | if (size > 0) | |
991 | { | |
8e65ff28 AC |
992 | internal_error (__FILE__, __LINE__, |
993 | "virtual memory exhausted: can't allocate %ld bytes.", size); | |
c906108c SS |
994 | } |
995 | else | |
996 | { | |
8e65ff28 AC |
997 | internal_error (__FILE__, __LINE__, |
998 | "virtual memory exhausted."); | |
c906108c SS |
999 | } |
1000 | } | |
1001 | ||
c0e61796 | 1002 | /* The xmmalloc() family of memory management routines. |
c906108c | 1003 | |
c0e61796 AC |
1004 | These are are like the mmalloc() family except that they implement |
1005 | consistent semantics and guard against typical memory management | |
1006 | problems: if a malloc fails, an internal error is thrown; if | |
1007 | free(NULL) is called, it is ignored; if *alloc(0) is called, NULL | |
1008 | is returned. | |
1009 | ||
1010 | All these routines are implemented using the mmalloc() family. */ | |
1011 | ||
1012 | void * | |
1013 | xmmalloc (void *md, size_t size) | |
c906108c | 1014 | { |
c0e61796 | 1015 | void *val; |
c906108c SS |
1016 | |
1017 | if (size == 0) | |
1018 | { | |
1019 | val = NULL; | |
1020 | } | |
c0e61796 | 1021 | else |
c906108c | 1022 | { |
c0e61796 AC |
1023 | val = mmalloc (md, size); |
1024 | if (val == NULL) | |
1025 | nomem (size); | |
c906108c SS |
1026 | } |
1027 | return (val); | |
1028 | } | |
1029 | ||
c0e61796 AC |
1030 | void * |
1031 | xmrealloc (void *md, void *ptr, size_t size) | |
c906108c | 1032 | { |
c0e61796 | 1033 | void *val; |
c906108c | 1034 | |
d7fa9de0 | 1035 | if (size == 0) |
c906108c | 1036 | { |
d7fa9de0 KB |
1037 | if (ptr != NULL) |
1038 | mfree (md, ptr); | |
1039 | val = NULL; | |
c906108c SS |
1040 | } |
1041 | else | |
1042 | { | |
d7fa9de0 KB |
1043 | if (ptr != NULL) |
1044 | { | |
1045 | val = mrealloc (md, ptr, size); | |
1046 | } | |
1047 | else | |
1048 | { | |
1049 | val = mmalloc (md, size); | |
1050 | } | |
1051 | if (val == NULL) | |
1052 | { | |
1053 | nomem (size); | |
1054 | } | |
c906108c SS |
1055 | } |
1056 | return (val); | |
1057 | } | |
1058 | ||
c0e61796 AC |
1059 | void * |
1060 | xmcalloc (void *md, size_t number, size_t size) | |
ed9a39eb | 1061 | { |
d7fa9de0 | 1062 | void *mem; |
d7fa9de0 KB |
1063 | if (number == 0 || size == 0) |
1064 | mem = NULL; | |
1065 | else | |
1066 | { | |
c0e61796 | 1067 | mem = mcalloc (md, number, size); |
d7fa9de0 KB |
1068 | if (mem == NULL) |
1069 | nomem (number * size); | |
1070 | } | |
ed9a39eb JM |
1071 | return mem; |
1072 | } | |
1073 | ||
c0e61796 AC |
1074 | void |
1075 | xmfree (void *md, void *ptr) | |
1076 | { | |
1077 | if (ptr != NULL) | |
1078 | mfree (md, ptr); | |
1079 | } | |
1080 | ||
1081 | /* The xmalloc() (libiberty.h) family of memory management routines. | |
1082 | ||
1083 | These are like the ISO-C malloc() family except that they implement | |
1084 | consistent semantics and guard against typical memory management | |
1085 | problems. See xmmalloc() above for further information. | |
1086 | ||
1087 | All these routines are wrappers to the xmmalloc() family. */ | |
1088 | ||
1089 | /* NOTE: These are declared using PTR to ensure consistency with | |
1090 | "libiberty.h". xfree() is GDB local. */ | |
1091 | ||
1092 | PTR | |
1093 | xmalloc (size_t size) | |
1094 | { | |
1095 | return xmmalloc (NULL, size); | |
1096 | } | |
c906108c SS |
1097 | |
1098 | PTR | |
fba45db2 | 1099 | xrealloc (PTR ptr, size_t size) |
c906108c | 1100 | { |
c0e61796 | 1101 | return xmrealloc (NULL, ptr, size); |
c906108c | 1102 | } |
b8c9b27d | 1103 | |
c0e61796 AC |
1104 | PTR |
1105 | xcalloc (size_t number, size_t size) | |
1106 | { | |
1107 | return xmcalloc (NULL, number, size); | |
1108 | } | |
b8c9b27d KB |
1109 | |
1110 | void | |
1111 | xfree (void *ptr) | |
1112 | { | |
c0e61796 | 1113 | xmfree (NULL, ptr); |
b8c9b27d | 1114 | } |
c906108c | 1115 | \f |
c5aa993b | 1116 | |
76995688 AC |
1117 | /* Like asprintf/vasprintf but get an internal_error if the call |
1118 | fails. */ | |
1119 | ||
1120 | void | |
1121 | xasprintf (char **ret, const char *format, ...) | |
1122 | { | |
1123 | va_list args; | |
1124 | va_start (args, format); | |
1125 | xvasprintf (ret, format, args); | |
1126 | va_end (args); | |
1127 | } | |
1128 | ||
1129 | void | |
1130 | xvasprintf (char **ret, const char *format, va_list ap) | |
1131 | { | |
1132 | int status = vasprintf (ret, format, ap); | |
1133 | /* NULL could be returned due to a memory allocation problem; a | |
1134 | badly format string; or something else. */ | |
1135 | if ((*ret) == NULL) | |
8e65ff28 AC |
1136 | internal_error (__FILE__, __LINE__, |
1137 | "vasprintf returned NULL buffer (errno %d)", | |
1138 | errno); | |
76995688 AC |
1139 | /* A negative status with a non-NULL buffer shouldn't never |
1140 | happen. But to be sure. */ | |
1141 | if (status < 0) | |
8e65ff28 AC |
1142 | internal_error (__FILE__, __LINE__, |
1143 | "vasprintf call failed (errno %d)", | |
1144 | errno); | |
76995688 AC |
1145 | } |
1146 | ||
1147 | ||
c906108c SS |
1148 | /* My replacement for the read system call. |
1149 | Used like `read' but keeps going if `read' returns too soon. */ | |
1150 | ||
1151 | int | |
fba45db2 | 1152 | myread (int desc, char *addr, int len) |
c906108c SS |
1153 | { |
1154 | register int val; | |
1155 | int orglen = len; | |
1156 | ||
1157 | while (len > 0) | |
1158 | { | |
1159 | val = read (desc, addr, len); | |
1160 | if (val < 0) | |
1161 | return val; | |
1162 | if (val == 0) | |
1163 | return orglen - len; | |
1164 | len -= val; | |
1165 | addr += val; | |
1166 | } | |
1167 | return orglen; | |
1168 | } | |
1169 | \f | |
1170 | /* Make a copy of the string at PTR with SIZE characters | |
1171 | (and add a null character at the end in the copy). | |
1172 | Uses malloc to get the space. Returns the address of the copy. */ | |
1173 | ||
1174 | char * | |
5565b556 | 1175 | savestring (const char *ptr, size_t size) |
c906108c SS |
1176 | { |
1177 | register char *p = (char *) xmalloc (size + 1); | |
1178 | memcpy (p, ptr, size); | |
1179 | p[size] = 0; | |
1180 | return p; | |
1181 | } | |
1182 | ||
1183 | char * | |
5565b556 | 1184 | msavestring (void *md, const char *ptr, size_t size) |
c906108c SS |
1185 | { |
1186 | register char *p = (char *) xmmalloc (md, size + 1); | |
1187 | memcpy (p, ptr, size); | |
1188 | p[size] = 0; | |
1189 | return p; | |
1190 | } | |
1191 | ||
c906108c | 1192 | char * |
082faf24 | 1193 | mstrsave (void *md, const char *ptr) |
c906108c SS |
1194 | { |
1195 | return (msavestring (md, ptr, strlen (ptr))); | |
1196 | } | |
1197 | ||
1198 | void | |
fba45db2 | 1199 | print_spaces (register int n, register struct ui_file *file) |
c906108c | 1200 | { |
392a587b | 1201 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1202 | } |
1203 | ||
1204 | /* Print a host address. */ | |
1205 | ||
1206 | void | |
d9fcf2fb | 1207 | gdb_print_host_address (void *addr, struct ui_file *stream) |
c906108c SS |
1208 | { |
1209 | ||
1210 | /* We could use the %p conversion specifier to fprintf if we had any | |
1211 | way of knowing whether this host supports it. But the following | |
1212 | should work on the Alpha and on 32 bit machines. */ | |
1213 | ||
c5aa993b | 1214 | fprintf_filtered (stream, "0x%lx", (unsigned long) addr); |
c906108c SS |
1215 | } |
1216 | ||
1217 | /* Ask user a y-or-n question and return 1 iff answer is yes. | |
1218 | Takes three args which are given to printf to print the question. | |
1219 | The first, a control string, should end in "? ". | |
1220 | It should not say how to answer, because we do that. */ | |
1221 | ||
1222 | /* VARARGS */ | |
1223 | int | |
c5aa993b | 1224 | query (char *ctlstr,...) |
c906108c SS |
1225 | { |
1226 | va_list args; | |
1227 | register int answer; | |
1228 | register int ans2; | |
1229 | int retval; | |
1230 | ||
c906108c | 1231 | va_start (args, ctlstr); |
c906108c SS |
1232 | |
1233 | if (query_hook) | |
1234 | { | |
1235 | return query_hook (ctlstr, args); | |
1236 | } | |
1237 | ||
1238 | /* Automatically answer "yes" if input is not from a terminal. */ | |
1239 | if (!input_from_terminal_p ()) | |
1240 | return 1; | |
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 | ||
c5aa993b | 1256 | wrap_here (""); |
c906108c SS |
1257 | gdb_flush (gdb_stdout); |
1258 | ||
37767e42 | 1259 | answer = fgetc (stdin); |
c906108c SS |
1260 | clearerr (stdin); /* in case of C-d */ |
1261 | if (answer == EOF) /* C-d */ | |
c5aa993b | 1262 | { |
c906108c SS |
1263 | retval = 1; |
1264 | break; | |
1265 | } | |
1266 | /* Eat rest of input line, to EOF or newline */ | |
37767e42 | 1267 | if (answer != '\n') |
c5aa993b | 1268 | do |
c906108c | 1269 | { |
37767e42 | 1270 | ans2 = fgetc (stdin); |
c906108c SS |
1271 | clearerr (stdin); |
1272 | } | |
c5aa993b | 1273 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); |
c906108c SS |
1274 | |
1275 | if (answer >= 'a') | |
1276 | answer -= 040; | |
1277 | if (answer == 'Y') | |
1278 | { | |
1279 | retval = 1; | |
1280 | break; | |
1281 | } | |
1282 | if (answer == 'N') | |
1283 | { | |
1284 | retval = 0; | |
1285 | break; | |
1286 | } | |
1287 | printf_filtered ("Please answer y or n.\n"); | |
1288 | } | |
1289 | ||
1290 | if (annotation_level > 1) | |
1291 | printf_filtered ("\n\032\032post-query\n"); | |
1292 | return retval; | |
1293 | } | |
c906108c | 1294 | \f |
c5aa993b | 1295 | |
c906108c SS |
1296 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1297 | containing a pointer to the string to parse. That pointer | |
1298 | should point to the character after the \. That pointer | |
1299 | is updated past the characters we use. The value of the | |
1300 | escape sequence is returned. | |
1301 | ||
1302 | A negative value means the sequence \ newline was seen, | |
1303 | which is supposed to be equivalent to nothing at all. | |
1304 | ||
1305 | If \ is followed by a null character, we return a negative | |
1306 | value and leave the string pointer pointing at the null character. | |
1307 | ||
1308 | If \ is followed by 000, we return 0 and leave the string pointer | |
1309 | after the zeros. A value of 0 does not mean end of string. */ | |
1310 | ||
1311 | int | |
fba45db2 | 1312 | parse_escape (char **string_ptr) |
c906108c SS |
1313 | { |
1314 | register int c = *(*string_ptr)++; | |
1315 | switch (c) | |
1316 | { | |
1317 | case 'a': | |
1318 | return 007; /* Bell (alert) char */ | |
1319 | case 'b': | |
1320 | return '\b'; | |
1321 | case 'e': /* Escape character */ | |
1322 | return 033; | |
1323 | case 'f': | |
1324 | return '\f'; | |
1325 | case 'n': | |
1326 | return '\n'; | |
1327 | case 'r': | |
1328 | return '\r'; | |
1329 | case 't': | |
1330 | return '\t'; | |
1331 | case 'v': | |
1332 | return '\v'; | |
1333 | case '\n': | |
1334 | return -2; | |
1335 | case 0: | |
1336 | (*string_ptr)--; | |
1337 | return 0; | |
1338 | case '^': | |
1339 | c = *(*string_ptr)++; | |
1340 | if (c == '\\') | |
1341 | c = parse_escape (string_ptr); | |
1342 | if (c == '?') | |
1343 | return 0177; | |
1344 | return (c & 0200) | (c & 037); | |
c5aa993b | 1345 | |
c906108c SS |
1346 | case '0': |
1347 | case '1': | |
1348 | case '2': | |
1349 | case '3': | |
1350 | case '4': | |
1351 | case '5': | |
1352 | case '6': | |
1353 | case '7': | |
1354 | { | |
1355 | register int i = c - '0'; | |
1356 | register int count = 0; | |
1357 | while (++count < 3) | |
1358 | { | |
1359 | if ((c = *(*string_ptr)++) >= '0' && c <= '7') | |
1360 | { | |
1361 | i *= 8; | |
1362 | i += c - '0'; | |
1363 | } | |
1364 | else | |
1365 | { | |
1366 | (*string_ptr)--; | |
1367 | break; | |
1368 | } | |
1369 | } | |
1370 | return i; | |
1371 | } | |
1372 | default: | |
1373 | return c; | |
1374 | } | |
1375 | } | |
1376 | \f | |
1377 | /* Print the character C on STREAM as part of the contents of a literal | |
1378 | string whose delimiter is QUOTER. Note that this routine should only | |
1379 | be call for printing things which are independent of the language | |
1380 | of the program being debugged. */ | |
1381 | ||
43e526b9 | 1382 | static void |
74f832da KB |
1383 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
1384 | void (*do_fprintf) (struct ui_file *, const char *, ...), | |
1385 | struct ui_file *stream, int quoter) | |
c906108c SS |
1386 | { |
1387 | ||
1388 | c &= 0xFF; /* Avoid sign bit follies */ | |
1389 | ||
c5aa993b JM |
1390 | if (c < 0x20 || /* Low control chars */ |
1391 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1392 | (sevenbit_strings && c >= 0x80)) | |
1393 | { /* high order bit set */ | |
1394 | switch (c) | |
1395 | { | |
1396 | case '\n': | |
43e526b9 | 1397 | do_fputs ("\\n", stream); |
c5aa993b JM |
1398 | break; |
1399 | case '\b': | |
43e526b9 | 1400 | do_fputs ("\\b", stream); |
c5aa993b JM |
1401 | break; |
1402 | case '\t': | |
43e526b9 | 1403 | do_fputs ("\\t", stream); |
c5aa993b JM |
1404 | break; |
1405 | case '\f': | |
43e526b9 | 1406 | do_fputs ("\\f", stream); |
c5aa993b JM |
1407 | break; |
1408 | case '\r': | |
43e526b9 | 1409 | do_fputs ("\\r", stream); |
c5aa993b JM |
1410 | break; |
1411 | case '\033': | |
43e526b9 | 1412 | do_fputs ("\\e", stream); |
c5aa993b JM |
1413 | break; |
1414 | case '\007': | |
43e526b9 | 1415 | do_fputs ("\\a", stream); |
c5aa993b JM |
1416 | break; |
1417 | default: | |
43e526b9 | 1418 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1419 | break; |
1420 | } | |
1421 | } | |
1422 | else | |
1423 | { | |
1424 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1425 | do_fputs ("\\", stream); |
1426 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1427 | } |
c906108c | 1428 | } |
43e526b9 JM |
1429 | |
1430 | /* Print the character C on STREAM as part of the contents of a | |
1431 | literal string whose delimiter is QUOTER. Note that these routines | |
1432 | should only be call for printing things which are independent of | |
1433 | the language of the program being debugged. */ | |
1434 | ||
1435 | void | |
fba45db2 | 1436 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1437 | { |
1438 | while (*str) | |
1439 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1440 | } | |
1441 | ||
1442 | void | |
fba45db2 | 1443 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1444 | { |
1445 | while (*str) | |
1446 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1447 | } | |
1448 | ||
1449 | void | |
fba45db2 | 1450 | fputstrn_unfiltered (const char *str, int n, int quoter, struct ui_file *stream) |
43e526b9 JM |
1451 | { |
1452 | int i; | |
1453 | for (i = 0; i < n; i++) | |
1454 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1455 | } | |
1456 | ||
c906108c | 1457 | \f |
c5aa993b | 1458 | |
c906108c SS |
1459 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1460 | static unsigned int lines_per_page; | |
cbfbd72a | 1461 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c SS |
1462 | static unsigned int chars_per_line; |
1463 | /* Current count of lines printed on this page, chars on this line. */ | |
1464 | static unsigned int lines_printed, chars_printed; | |
1465 | ||
1466 | /* Buffer and start column of buffered text, for doing smarter word- | |
1467 | wrapping. When someone calls wrap_here(), we start buffering output | |
1468 | that comes through fputs_filtered(). If we see a newline, we just | |
1469 | spit it out and forget about the wrap_here(). If we see another | |
1470 | wrap_here(), we spit it out and remember the newer one. If we see | |
1471 | the end of the line, we spit out a newline, the indent, and then | |
1472 | the buffered output. */ | |
1473 | ||
1474 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1475 | are waiting to be output (they have already been counted in chars_printed). | |
1476 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1477 | static char *wrap_buffer; | |
1478 | ||
1479 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1480 | static char *wrap_pointer; | |
1481 | ||
1482 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1483 | is non-zero. */ | |
1484 | static char *wrap_indent; | |
1485 | ||
1486 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1487 | is not in effect. */ | |
1488 | static int wrap_column; | |
c906108c | 1489 | \f |
c5aa993b | 1490 | |
c906108c SS |
1491 | /* Inialize the lines and chars per page */ |
1492 | void | |
fba45db2 | 1493 | init_page_info (void) |
c906108c SS |
1494 | { |
1495 | #if defined(TUI) | |
5ecb1806 | 1496 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1497 | #endif |
1498 | { | |
1499 | /* These defaults will be used if we are unable to get the correct | |
1500 | values from termcap. */ | |
1501 | #if defined(__GO32__) | |
c5aa993b JM |
1502 | lines_per_page = ScreenRows (); |
1503 | chars_per_line = ScreenCols (); | |
1504 | #else | |
c906108c SS |
1505 | lines_per_page = 24; |
1506 | chars_per_line = 80; | |
1507 | ||
d036b4d9 | 1508 | #if !defined (_WIN32) |
c906108c SS |
1509 | /* No termcap under MPW, although might be cool to do something |
1510 | by looking at worksheet or console window sizes. */ | |
1511 | /* Initialize the screen height and width from termcap. */ | |
1512 | { | |
c5aa993b | 1513 | char *termtype = getenv ("TERM"); |
c906108c | 1514 | |
c5aa993b JM |
1515 | /* Positive means success, nonpositive means failure. */ |
1516 | int status; | |
c906108c | 1517 | |
c5aa993b JM |
1518 | /* 2048 is large enough for all known terminals, according to the |
1519 | GNU termcap manual. */ | |
1520 | char term_buffer[2048]; | |
c906108c | 1521 | |
c5aa993b JM |
1522 | if (termtype) |
1523 | { | |
c906108c SS |
1524 | status = tgetent (term_buffer, termtype); |
1525 | if (status > 0) | |
1526 | { | |
c5aa993b | 1527 | int val; |
c906108c | 1528 | int running_in_emacs = getenv ("EMACS") != NULL; |
c5aa993b JM |
1529 | |
1530 | val = tgetnum ("li"); | |
1531 | if (val >= 0 && !running_in_emacs) | |
1532 | lines_per_page = val; | |
1533 | else | |
1534 | /* The number of lines per page is not mentioned | |
c906108c SS |
1535 | in the terminal description. This probably means |
1536 | that paging is not useful (e.g. emacs shell window), | |
1537 | so disable paging. */ | |
c5aa993b JM |
1538 | lines_per_page = UINT_MAX; |
1539 | ||
1540 | val = tgetnum ("co"); | |
1541 | if (val >= 0) | |
1542 | chars_per_line = val; | |
c906108c | 1543 | } |
c5aa993b | 1544 | } |
c906108c SS |
1545 | } |
1546 | #endif /* MPW */ | |
1547 | ||
1548 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) | |
1549 | ||
1550 | /* If there is a better way to determine the window size, use it. */ | |
1551 | SIGWINCH_HANDLER (SIGWINCH); | |
1552 | #endif | |
1553 | #endif | |
1554 | /* If the output is not a terminal, don't paginate it. */ | |
d9fcf2fb | 1555 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b JM |
1556 | lines_per_page = UINT_MAX; |
1557 | } /* the command_line_version */ | |
1558 | set_width (); | |
c906108c SS |
1559 | } |
1560 | ||
1561 | static void | |
fba45db2 | 1562 | set_width (void) |
c906108c SS |
1563 | { |
1564 | if (chars_per_line == 0) | |
c5aa993b | 1565 | init_page_info (); |
c906108c SS |
1566 | |
1567 | if (!wrap_buffer) | |
1568 | { | |
1569 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1570 | wrap_buffer[0] = '\0'; | |
1571 | } | |
1572 | else | |
1573 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
c5aa993b | 1574 | wrap_pointer = wrap_buffer; /* Start it at the beginning */ |
c906108c SS |
1575 | } |
1576 | ||
1577 | /* ARGSUSED */ | |
c5aa993b | 1578 | static void |
fba45db2 | 1579 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c SS |
1580 | { |
1581 | set_width (); | |
1582 | } | |
1583 | ||
1584 | /* Wait, so the user can read what's on the screen. Prompt the user | |
1585 | to continue by pressing RETURN. */ | |
1586 | ||
1587 | static void | |
fba45db2 | 1588 | prompt_for_continue (void) |
c906108c SS |
1589 | { |
1590 | char *ignore; | |
1591 | char cont_prompt[120]; | |
1592 | ||
1593 | if (annotation_level > 1) | |
1594 | printf_unfiltered ("\n\032\032pre-prompt-for-continue\n"); | |
1595 | ||
1596 | strcpy (cont_prompt, | |
1597 | "---Type <return> to continue, or q <return> to quit---"); | |
1598 | if (annotation_level > 1) | |
1599 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1600 | ||
1601 | /* We must do this *before* we call gdb_readline, else it will eventually | |
1602 | call us -- thinking that we're trying to print beyond the end of the | |
1603 | screen. */ | |
1604 | reinitialize_more_filter (); | |
1605 | ||
1606 | immediate_quit++; | |
1607 | /* On a real operating system, the user can quit with SIGINT. | |
1608 | But not on GO32. | |
1609 | ||
1610 | 'q' is provided on all systems so users don't have to change habits | |
1611 | from system to system, and because telling them what to do in | |
1612 | the prompt is more user-friendly than expecting them to think of | |
1613 | SIGINT. */ | |
1614 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
1615 | whereas control-C to gdb_readline will cause the user to get dumped | |
1616 | out to DOS. */ | |
1617 | ignore = readline (cont_prompt); | |
1618 | ||
1619 | if (annotation_level > 1) | |
1620 | printf_unfiltered ("\n\032\032post-prompt-for-continue\n"); | |
1621 | ||
1622 | if (ignore) | |
1623 | { | |
1624 | char *p = ignore; | |
1625 | while (*p == ' ' || *p == '\t') | |
1626 | ++p; | |
1627 | if (p[0] == 'q') | |
0f71a2f6 | 1628 | { |
6426a772 | 1629 | if (!event_loop_p) |
0f71a2f6 JM |
1630 | request_quit (SIGINT); |
1631 | else | |
c5aa993b | 1632 | async_request_quit (0); |
0f71a2f6 | 1633 | } |
b8c9b27d | 1634 | xfree (ignore); |
c906108c SS |
1635 | } |
1636 | immediate_quit--; | |
1637 | ||
1638 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1639 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1640 | reinitialize_more_filter (); | |
1641 | ||
1642 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ | |
1643 | } | |
1644 | ||
1645 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
1646 | ||
1647 | void | |
fba45db2 | 1648 | reinitialize_more_filter (void) |
c906108c SS |
1649 | { |
1650 | lines_printed = 0; | |
1651 | chars_printed = 0; | |
1652 | } | |
1653 | ||
1654 | /* Indicate that if the next sequence of characters overflows the line, | |
1655 | a newline should be inserted here rather than when it hits the end. | |
1656 | If INDENT is non-null, it is a string to be printed to indent the | |
1657 | wrapped part on the next line. INDENT must remain accessible until | |
1658 | the next call to wrap_here() or until a newline is printed through | |
1659 | fputs_filtered(). | |
1660 | ||
1661 | If the line is already overfull, we immediately print a newline and | |
1662 | the indentation, and disable further wrapping. | |
1663 | ||
1664 | If we don't know the width of lines, but we know the page height, | |
1665 | we must not wrap words, but should still keep track of newlines | |
1666 | that were explicitly printed. | |
1667 | ||
1668 | INDENT should not contain tabs, as that will mess up the char count | |
1669 | on the next line. FIXME. | |
1670 | ||
1671 | This routine is guaranteed to force out any output which has been | |
1672 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1673 | used to force out output from the wrap_buffer. */ | |
1674 | ||
1675 | void | |
fba45db2 | 1676 | wrap_here (char *indent) |
c906108c SS |
1677 | { |
1678 | /* This should have been allocated, but be paranoid anyway. */ | |
1679 | if (!wrap_buffer) | |
e1e9e218 | 1680 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
1681 | |
1682 | if (wrap_buffer[0]) | |
1683 | { | |
1684 | *wrap_pointer = '\0'; | |
1685 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1686 | } | |
1687 | wrap_pointer = wrap_buffer; | |
1688 | wrap_buffer[0] = '\0'; | |
c5aa993b | 1689 | if (chars_per_line == UINT_MAX) /* No line overflow checking */ |
c906108c SS |
1690 | { |
1691 | wrap_column = 0; | |
1692 | } | |
1693 | else if (chars_printed >= chars_per_line) | |
1694 | { | |
1695 | puts_filtered ("\n"); | |
1696 | if (indent != NULL) | |
1697 | puts_filtered (indent); | |
1698 | wrap_column = 0; | |
1699 | } | |
1700 | else | |
1701 | { | |
1702 | wrap_column = chars_printed; | |
1703 | if (indent == NULL) | |
1704 | wrap_indent = ""; | |
1705 | else | |
1706 | wrap_indent = indent; | |
1707 | } | |
1708 | } | |
1709 | ||
1710 | /* Ensure that whatever gets printed next, using the filtered output | |
1711 | commands, starts at the beginning of the line. I.E. if there is | |
1712 | any pending output for the current line, flush it and start a new | |
1713 | line. Otherwise do nothing. */ | |
1714 | ||
1715 | void | |
fba45db2 | 1716 | begin_line (void) |
c906108c SS |
1717 | { |
1718 | if (chars_printed > 0) | |
1719 | { | |
1720 | puts_filtered ("\n"); | |
1721 | } | |
1722 | } | |
1723 | ||
ac9a91a7 | 1724 | |
c906108c SS |
1725 | /* Like fputs but if FILTER is true, pause after every screenful. |
1726 | ||
1727 | Regardless of FILTER can wrap at points other than the final | |
1728 | character of a line. | |
1729 | ||
1730 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
1731 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
1732 | anything. | |
1733 | ||
1734 | Note that a longjmp to top level may occur in this routine (only if | |
1735 | FILTER is true) (since prompt_for_continue may do so) so this | |
1736 | routine should not be called when cleanups are not in place. */ | |
1737 | ||
1738 | static void | |
fba45db2 KB |
1739 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
1740 | int filter) | |
c906108c SS |
1741 | { |
1742 | const char *lineptr; | |
1743 | ||
1744 | if (linebuffer == 0) | |
1745 | return; | |
1746 | ||
1747 | /* Don't do any filtering if it is disabled. */ | |
7a292a7a | 1748 | if ((stream != gdb_stdout) || !pagination_enabled |
c5aa993b | 1749 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX)) |
c906108c SS |
1750 | { |
1751 | fputs_unfiltered (linebuffer, stream); | |
1752 | return; | |
1753 | } | |
1754 | ||
1755 | /* Go through and output each character. Show line extension | |
1756 | when this is necessary; prompt user for new page when this is | |
1757 | necessary. */ | |
c5aa993b | 1758 | |
c906108c SS |
1759 | lineptr = linebuffer; |
1760 | while (*lineptr) | |
1761 | { | |
1762 | /* Possible new page. */ | |
1763 | if (filter && | |
1764 | (lines_printed >= lines_per_page - 1)) | |
1765 | prompt_for_continue (); | |
1766 | ||
1767 | while (*lineptr && *lineptr != '\n') | |
1768 | { | |
1769 | /* Print a single line. */ | |
1770 | if (*lineptr == '\t') | |
1771 | { | |
1772 | if (wrap_column) | |
1773 | *wrap_pointer++ = '\t'; | |
1774 | else | |
1775 | fputc_unfiltered ('\t', stream); | |
1776 | /* Shifting right by 3 produces the number of tab stops | |
1777 | we have already passed, and then adding one and | |
c5aa993b | 1778 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
1779 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
1780 | lineptr++; | |
1781 | } | |
1782 | else | |
1783 | { | |
1784 | if (wrap_column) | |
1785 | *wrap_pointer++ = *lineptr; | |
1786 | else | |
c5aa993b | 1787 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
1788 | chars_printed++; |
1789 | lineptr++; | |
1790 | } | |
c5aa993b | 1791 | |
c906108c SS |
1792 | if (chars_printed >= chars_per_line) |
1793 | { | |
1794 | unsigned int save_chars = chars_printed; | |
1795 | ||
1796 | chars_printed = 0; | |
1797 | lines_printed++; | |
1798 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
1799 | if chars_per_line is right, we probably just overflowed |
1800 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
1801 | if (wrap_column) |
1802 | fputc_unfiltered ('\n', stream); | |
1803 | ||
1804 | /* Possible new page. */ | |
1805 | if (lines_printed >= lines_per_page - 1) | |
1806 | prompt_for_continue (); | |
1807 | ||
1808 | /* Now output indentation and wrapped string */ | |
1809 | if (wrap_column) | |
1810 | { | |
1811 | fputs_unfiltered (wrap_indent, stream); | |
c5aa993b JM |
1812 | *wrap_pointer = '\0'; /* Null-terminate saved stuff */ |
1813 | fputs_unfiltered (wrap_buffer, stream); /* and eject it */ | |
c906108c SS |
1814 | /* FIXME, this strlen is what prevents wrap_indent from |
1815 | containing tabs. However, if we recurse to print it | |
1816 | and count its chars, we risk trouble if wrap_indent is | |
1817 | longer than (the user settable) chars_per_line. | |
1818 | Note also that this can set chars_printed > chars_per_line | |
1819 | if we are printing a long string. */ | |
1820 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 1821 | + (save_chars - wrap_column); |
c906108c SS |
1822 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
1823 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
1824 | wrap_column = 0; /* And disable fancy wrap */ |
1825 | } | |
c906108c SS |
1826 | } |
1827 | } | |
1828 | ||
1829 | if (*lineptr == '\n') | |
1830 | { | |
1831 | chars_printed = 0; | |
c5aa993b | 1832 | wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */ |
c906108c SS |
1833 | lines_printed++; |
1834 | fputc_unfiltered ('\n', stream); | |
1835 | lineptr++; | |
1836 | } | |
1837 | } | |
1838 | } | |
1839 | ||
1840 | void | |
fba45db2 | 1841 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
1842 | { |
1843 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1844 | } | |
1845 | ||
1846 | int | |
fba45db2 | 1847 | putchar_unfiltered (int c) |
c906108c | 1848 | { |
11cf8741 | 1849 | char buf = c; |
d9fcf2fb | 1850 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
1851 | return c; |
1852 | } | |
1853 | ||
d1f4cff8 AC |
1854 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
1855 | May return nonlocally. */ | |
1856 | ||
1857 | int | |
1858 | putchar_filtered (int c) | |
1859 | { | |
1860 | return fputc_filtered (c, gdb_stdout); | |
1861 | } | |
1862 | ||
c906108c | 1863 | int |
fba45db2 | 1864 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 1865 | { |
11cf8741 | 1866 | char buf = c; |
d9fcf2fb | 1867 | ui_file_write (stream, &buf, 1); |
c906108c SS |
1868 | return c; |
1869 | } | |
1870 | ||
1871 | int | |
fba45db2 | 1872 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
1873 | { |
1874 | char buf[2]; | |
1875 | ||
1876 | buf[0] = c; | |
1877 | buf[1] = 0; | |
1878 | fputs_filtered (buf, stream); | |
1879 | return c; | |
1880 | } | |
1881 | ||
1882 | /* puts_debug is like fputs_unfiltered, except it prints special | |
1883 | characters in printable fashion. */ | |
1884 | ||
1885 | void | |
fba45db2 | 1886 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
1887 | { |
1888 | int ch; | |
1889 | ||
1890 | /* Print prefix and suffix after each line. */ | |
1891 | static int new_line = 1; | |
1892 | static int return_p = 0; | |
1893 | static char *prev_prefix = ""; | |
1894 | static char *prev_suffix = ""; | |
1895 | ||
1896 | if (*string == '\n') | |
1897 | return_p = 0; | |
1898 | ||
1899 | /* If the prefix is changing, print the previous suffix, a new line, | |
1900 | and the new prefix. */ | |
c5aa993b | 1901 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 1902 | { |
9846de1b JM |
1903 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
1904 | fputs_unfiltered ("\n", gdb_stdlog); | |
1905 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
1906 | } |
1907 | ||
1908 | /* Print prefix if we printed a newline during the previous call. */ | |
1909 | if (new_line) | |
1910 | { | |
1911 | new_line = 0; | |
9846de1b | 1912 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
1913 | } |
1914 | ||
1915 | prev_prefix = prefix; | |
1916 | prev_suffix = suffix; | |
1917 | ||
1918 | /* Output characters in a printable format. */ | |
1919 | while ((ch = *string++) != '\0') | |
1920 | { | |
1921 | switch (ch) | |
c5aa993b | 1922 | { |
c906108c SS |
1923 | default: |
1924 | if (isprint (ch)) | |
9846de1b | 1925 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
1926 | |
1927 | else | |
9846de1b | 1928 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
1929 | break; |
1930 | ||
c5aa993b JM |
1931 | case '\\': |
1932 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
1933 | break; | |
1934 | case '\b': | |
1935 | fputs_unfiltered ("\\b", gdb_stdlog); | |
1936 | break; | |
1937 | case '\f': | |
1938 | fputs_unfiltered ("\\f", gdb_stdlog); | |
1939 | break; | |
1940 | case '\n': | |
1941 | new_line = 1; | |
1942 | fputs_unfiltered ("\\n", gdb_stdlog); | |
1943 | break; | |
1944 | case '\r': | |
1945 | fputs_unfiltered ("\\r", gdb_stdlog); | |
1946 | break; | |
1947 | case '\t': | |
1948 | fputs_unfiltered ("\\t", gdb_stdlog); | |
1949 | break; | |
1950 | case '\v': | |
1951 | fputs_unfiltered ("\\v", gdb_stdlog); | |
1952 | break; | |
1953 | } | |
c906108c SS |
1954 | |
1955 | return_p = ch == '\r'; | |
1956 | } | |
1957 | ||
1958 | /* Print suffix if we printed a newline. */ | |
1959 | if (new_line) | |
1960 | { | |
9846de1b JM |
1961 | fputs_unfiltered (suffix, gdb_stdlog); |
1962 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
1963 | } |
1964 | } | |
1965 | ||
1966 | ||
1967 | /* Print a variable number of ARGS using format FORMAT. If this | |
1968 | information is going to put the amount written (since the last call | |
1969 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
1970 | call prompt_for_continue to get the users permision to continue. | |
1971 | ||
1972 | Unlike fprintf, this function does not return a value. | |
1973 | ||
1974 | We implement three variants, vfprintf (takes a vararg list and stream), | |
1975 | fprintf (takes a stream to write on), and printf (the usual). | |
1976 | ||
1977 | Note also that a longjmp to top level may occur in this routine | |
1978 | (since prompt_for_continue may do so) so this routine should not be | |
1979 | called when cleanups are not in place. */ | |
1980 | ||
1981 | static void | |
fba45db2 KB |
1982 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
1983 | va_list args, int filter) | |
c906108c SS |
1984 | { |
1985 | char *linebuffer; | |
1986 | struct cleanup *old_cleanups; | |
1987 | ||
76995688 | 1988 | xvasprintf (&linebuffer, format, args); |
b8c9b27d | 1989 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
1990 | fputs_maybe_filtered (linebuffer, stream, filter); |
1991 | do_cleanups (old_cleanups); | |
1992 | } | |
1993 | ||
1994 | ||
1995 | void | |
fba45db2 | 1996 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
1997 | { |
1998 | vfprintf_maybe_filtered (stream, format, args, 1); | |
1999 | } | |
2000 | ||
2001 | void | |
fba45db2 | 2002 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2003 | { |
2004 | char *linebuffer; | |
2005 | struct cleanup *old_cleanups; | |
2006 | ||
76995688 | 2007 | xvasprintf (&linebuffer, format, args); |
b8c9b27d | 2008 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2009 | fputs_unfiltered (linebuffer, stream); |
2010 | do_cleanups (old_cleanups); | |
2011 | } | |
2012 | ||
2013 | void | |
fba45db2 | 2014 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2015 | { |
2016 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2017 | } | |
2018 | ||
2019 | void | |
fba45db2 | 2020 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2021 | { |
2022 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2023 | } | |
2024 | ||
c906108c | 2025 | void |
d9fcf2fb | 2026 | fprintf_filtered (struct ui_file * stream, const char *format,...) |
c906108c SS |
2027 | { |
2028 | va_list args; | |
c906108c | 2029 | va_start (args, format); |
c906108c SS |
2030 | vfprintf_filtered (stream, format, args); |
2031 | va_end (args); | |
2032 | } | |
2033 | ||
c906108c | 2034 | void |
d9fcf2fb | 2035 | fprintf_unfiltered (struct ui_file * stream, const char *format,...) |
c906108c SS |
2036 | { |
2037 | va_list args; | |
c906108c | 2038 | va_start (args, format); |
c906108c SS |
2039 | vfprintf_unfiltered (stream, format, args); |
2040 | va_end (args); | |
2041 | } | |
2042 | ||
2043 | /* Like fprintf_filtered, but prints its result indented. | |
2044 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2045 | ||
c906108c | 2046 | void |
d9fcf2fb | 2047 | fprintfi_filtered (int spaces, struct ui_file * stream, const char *format,...) |
c906108c SS |
2048 | { |
2049 | va_list args; | |
c906108c | 2050 | va_start (args, format); |
c906108c SS |
2051 | print_spaces_filtered (spaces, stream); |
2052 | ||
2053 | vfprintf_filtered (stream, format, args); | |
2054 | va_end (args); | |
2055 | } | |
2056 | ||
2057 | ||
c906108c | 2058 | void |
c5aa993b | 2059 | printf_filtered (const char *format,...) |
c906108c SS |
2060 | { |
2061 | va_list args; | |
c906108c | 2062 | va_start (args, format); |
c906108c SS |
2063 | vfprintf_filtered (gdb_stdout, format, args); |
2064 | va_end (args); | |
2065 | } | |
2066 | ||
2067 | ||
c906108c | 2068 | void |
c5aa993b | 2069 | printf_unfiltered (const char *format,...) |
c906108c SS |
2070 | { |
2071 | va_list args; | |
c906108c | 2072 | va_start (args, format); |
c906108c SS |
2073 | vfprintf_unfiltered (gdb_stdout, format, args); |
2074 | va_end (args); | |
2075 | } | |
2076 | ||
2077 | /* Like printf_filtered, but prints it's result indented. | |
2078 | Called as printfi_filtered (spaces, format, ...); */ | |
2079 | ||
c906108c | 2080 | void |
c5aa993b | 2081 | printfi_filtered (int spaces, const char *format,...) |
c906108c SS |
2082 | { |
2083 | va_list args; | |
c906108c | 2084 | va_start (args, format); |
c906108c SS |
2085 | print_spaces_filtered (spaces, gdb_stdout); |
2086 | vfprintf_filtered (gdb_stdout, format, args); | |
2087 | va_end (args); | |
2088 | } | |
2089 | ||
2090 | /* Easy -- but watch out! | |
2091 | ||
2092 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2093 | This one doesn't, and had better not! */ | |
2094 | ||
2095 | void | |
fba45db2 | 2096 | puts_filtered (const char *string) |
c906108c SS |
2097 | { |
2098 | fputs_filtered (string, gdb_stdout); | |
2099 | } | |
2100 | ||
2101 | void | |
fba45db2 | 2102 | puts_unfiltered (const char *string) |
c906108c SS |
2103 | { |
2104 | fputs_unfiltered (string, gdb_stdout); | |
2105 | } | |
2106 | ||
2107 | /* Return a pointer to N spaces and a null. The pointer is good | |
2108 | until the next call to here. */ | |
2109 | char * | |
fba45db2 | 2110 | n_spaces (int n) |
c906108c | 2111 | { |
392a587b JM |
2112 | char *t; |
2113 | static char *spaces = 0; | |
2114 | static int max_spaces = -1; | |
c906108c SS |
2115 | |
2116 | if (n > max_spaces) | |
2117 | { | |
2118 | if (spaces) | |
b8c9b27d | 2119 | xfree (spaces); |
c5aa993b JM |
2120 | spaces = (char *) xmalloc (n + 1); |
2121 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2122 | *--t = ' '; |
2123 | spaces[n] = '\0'; | |
2124 | max_spaces = n; | |
2125 | } | |
2126 | ||
2127 | return spaces + max_spaces - n; | |
2128 | } | |
2129 | ||
2130 | /* Print N spaces. */ | |
2131 | void | |
fba45db2 | 2132 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2133 | { |
2134 | fputs_filtered (n_spaces (n), stream); | |
2135 | } | |
2136 | \f | |
2137 | /* C++ demangler stuff. */ | |
2138 | ||
2139 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language | |
2140 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2141 | If the name is not mangled, or the language for the name is unknown, or | |
2142 | demangling is off, the name is printed in its "raw" form. */ | |
2143 | ||
2144 | void | |
fba45db2 KB |
2145 | fprintf_symbol_filtered (struct ui_file *stream, char *name, enum language lang, |
2146 | int arg_mode) | |
c906108c SS |
2147 | { |
2148 | char *demangled; | |
2149 | ||
2150 | if (name != NULL) | |
2151 | { | |
2152 | /* If user wants to see raw output, no problem. */ | |
2153 | if (!demangle) | |
2154 | { | |
2155 | fputs_filtered (name, stream); | |
2156 | } | |
2157 | else | |
2158 | { | |
2159 | switch (lang) | |
2160 | { | |
2161 | case language_cplus: | |
2162 | demangled = cplus_demangle (name, arg_mode); | |
2163 | break; | |
2164 | case language_java: | |
2165 | demangled = cplus_demangle (name, arg_mode | DMGL_JAVA); | |
2166 | break; | |
2167 | case language_chill: | |
2168 | demangled = chill_demangle (name); | |
2169 | break; | |
2170 | default: | |
2171 | demangled = NULL; | |
2172 | break; | |
2173 | } | |
2174 | fputs_filtered (demangled ? demangled : name, stream); | |
2175 | if (demangled != NULL) | |
2176 | { | |
b8c9b27d | 2177 | xfree (demangled); |
c906108c SS |
2178 | } |
2179 | } | |
2180 | } | |
2181 | } | |
2182 | ||
2183 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2184 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2185 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2186 | |
c906108c SS |
2187 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2188 | This "feature" is useful when searching for matching C++ function names | |
2189 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
2190 | function). */ | |
2191 | ||
2192 | int | |
fba45db2 | 2193 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2194 | { |
2195 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2196 | { | |
2197 | while (isspace (*string1)) | |
2198 | { | |
2199 | string1++; | |
2200 | } | |
2201 | while (isspace (*string2)) | |
2202 | { | |
2203 | string2++; | |
2204 | } | |
2205 | if (*string1 != *string2) | |
2206 | { | |
2207 | break; | |
2208 | } | |
2209 | if (*string1 != '\0') | |
2210 | { | |
2211 | string1++; | |
2212 | string2++; | |
2213 | } | |
2214 | } | |
2215 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2216 | } | |
c906108c | 2217 | \f |
c5aa993b | 2218 | |
c906108c | 2219 | /* |
c5aa993b JM |
2220 | ** subset_compare() |
2221 | ** Answer whether string_to_compare is a full or partial match to | |
2222 | ** template_string. The partial match must be in sequence starting | |
2223 | ** at index 0. | |
2224 | */ | |
c906108c | 2225 | int |
fba45db2 | 2226 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
2227 | { |
2228 | int match; | |
c5aa993b JM |
2229 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL && |
2230 | strlen (string_to_compare) <= strlen (template_string)) | |
2231 | match = (strncmp (template_string, | |
2232 | string_to_compare, | |
2233 | strlen (string_to_compare)) == 0); | |
7a292a7a SS |
2234 | else |
2235 | match = 0; | |
2236 | return match; | |
2237 | } | |
c906108c SS |
2238 | |
2239 | ||
a14ed312 | 2240 | static void pagination_on_command (char *arg, int from_tty); |
7a292a7a | 2241 | static void |
fba45db2 | 2242 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
2243 | { |
2244 | pagination_enabled = 1; | |
2245 | } | |
2246 | ||
a14ed312 | 2247 | static void pagination_on_command (char *arg, int from_tty); |
7a292a7a | 2248 | static void |
fba45db2 | 2249 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
2250 | { |
2251 | pagination_enabled = 0; | |
2252 | } | |
c906108c | 2253 | \f |
c5aa993b | 2254 | |
c906108c | 2255 | void |
fba45db2 | 2256 | initialize_utils (void) |
c906108c SS |
2257 | { |
2258 | struct cmd_list_element *c; | |
2259 | ||
c5aa993b JM |
2260 | c = add_set_cmd ("width", class_support, var_uinteger, |
2261 | (char *) &chars_per_line, | |
2262 | "Set number of characters gdb thinks are in a line.", | |
2263 | &setlist); | |
c906108c SS |
2264 | add_show_from_set (c, &showlist); |
2265 | c->function.sfunc = set_width_command; | |
2266 | ||
2267 | add_show_from_set | |
2268 | (add_set_cmd ("height", class_support, | |
c5aa993b | 2269 | var_uinteger, (char *) &lines_per_page, |
c906108c SS |
2270 | "Set number of lines gdb thinks are in a page.", &setlist), |
2271 | &showlist); | |
c5aa993b | 2272 | |
c906108c SS |
2273 | init_page_info (); |
2274 | ||
2275 | /* If the output is not a terminal, don't paginate it. */ | |
d9fcf2fb | 2276 | if (!ui_file_isatty (gdb_stdout)) |
c906108c SS |
2277 | lines_per_page = UINT_MAX; |
2278 | ||
c5aa993b | 2279 | set_width_command ((char *) NULL, 0, c); |
c906108c SS |
2280 | |
2281 | add_show_from_set | |
c5aa993b JM |
2282 | (add_set_cmd ("demangle", class_support, var_boolean, |
2283 | (char *) &demangle, | |
2284 | "Set demangling of encoded C++ names when displaying symbols.", | |
c906108c SS |
2285 | &setprintlist), |
2286 | &showprintlist); | |
2287 | ||
2288 | add_show_from_set | |
2289 | (add_set_cmd ("pagination", class_support, | |
c5aa993b | 2290 | var_boolean, (char *) &pagination_enabled, |
c906108c SS |
2291 | "Set state of pagination.", &setlist), |
2292 | &showlist); | |
4261bedc | 2293 | |
c906108c SS |
2294 | if (xdb_commands) |
2295 | { | |
c5aa993b JM |
2296 | add_com ("am", class_support, pagination_on_command, |
2297 | "Enable pagination"); | |
2298 | add_com ("sm", class_support, pagination_off_command, | |
2299 | "Disable pagination"); | |
c906108c SS |
2300 | } |
2301 | ||
2302 | add_show_from_set | |
c5aa993b JM |
2303 | (add_set_cmd ("sevenbit-strings", class_support, var_boolean, |
2304 | (char *) &sevenbit_strings, | |
2305 | "Set printing of 8-bit characters in strings as \\nnn.", | |
c906108c SS |
2306 | &setprintlist), |
2307 | &showprintlist); | |
2308 | ||
2309 | add_show_from_set | |
c5aa993b JM |
2310 | (add_set_cmd ("asm-demangle", class_support, var_boolean, |
2311 | (char *) &asm_demangle, | |
2312 | "Set demangling of C++ names in disassembly listings.", | |
c906108c SS |
2313 | &setprintlist), |
2314 | &showprintlist); | |
2315 | } | |
2316 | ||
2317 | /* Machine specific function to handle SIGWINCH signal. */ | |
2318 | ||
2319 | #ifdef SIGWINCH_HANDLER_BODY | |
c5aa993b | 2320 | SIGWINCH_HANDLER_BODY |
c906108c | 2321 | #endif |
39424bef | 2322 | |
5683e87a AC |
2323 | /* print routines to handle variable size regs, etc. */ |
2324 | ||
c906108c SS |
2325 | /* temporary storage using circular buffer */ |
2326 | #define NUMCELLS 16 | |
2327 | #define CELLSIZE 32 | |
c5aa993b | 2328 | static char * |
fba45db2 | 2329 | get_cell (void) |
c906108c SS |
2330 | { |
2331 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b JM |
2332 | static int cell = 0; |
2333 | if (++cell >= NUMCELLS) | |
2334 | cell = 0; | |
c906108c SS |
2335 | return buf[cell]; |
2336 | } | |
2337 | ||
d4f3574e SS |
2338 | int |
2339 | strlen_paddr (void) | |
2340 | { | |
79496e2f | 2341 | return (TARGET_ADDR_BIT / 8 * 2); |
d4f3574e SS |
2342 | } |
2343 | ||
c5aa993b | 2344 | char * |
104c1213 | 2345 | paddr (CORE_ADDR addr) |
c906108c | 2346 | { |
79496e2f | 2347 | return phex (addr, TARGET_ADDR_BIT / 8); |
c906108c SS |
2348 | } |
2349 | ||
c5aa993b | 2350 | char * |
104c1213 | 2351 | paddr_nz (CORE_ADDR addr) |
c906108c | 2352 | { |
79496e2f | 2353 | return phex_nz (addr, TARGET_ADDR_BIT / 8); |
c906108c SS |
2354 | } |
2355 | ||
104c1213 JM |
2356 | static void |
2357 | decimal2str (char *paddr_str, char *sign, ULONGEST addr) | |
2358 | { | |
2359 | /* steal code from valprint.c:print_decimal(). Should this worry | |
2360 | about the real size of addr as the above does? */ | |
2361 | unsigned long temp[3]; | |
2362 | int i = 0; | |
2363 | do | |
2364 | { | |
2365 | temp[i] = addr % (1000 * 1000 * 1000); | |
2366 | addr /= (1000 * 1000 * 1000); | |
2367 | i++; | |
2368 | } | |
2369 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
2370 | switch (i) | |
2371 | { | |
2372 | case 1: | |
2373 | sprintf (paddr_str, "%s%lu", | |
2374 | sign, temp[0]); | |
2375 | break; | |
2376 | case 2: | |
2377 | sprintf (paddr_str, "%s%lu%09lu", | |
2378 | sign, temp[1], temp[0]); | |
2379 | break; | |
2380 | case 3: | |
2381 | sprintf (paddr_str, "%s%lu%09lu%09lu", | |
2382 | sign, temp[2], temp[1], temp[0]); | |
2383 | break; | |
2384 | default: | |
e1e9e218 | 2385 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
104c1213 JM |
2386 | } |
2387 | } | |
2388 | ||
2389 | char * | |
2390 | paddr_u (CORE_ADDR addr) | |
2391 | { | |
2392 | char *paddr_str = get_cell (); | |
2393 | decimal2str (paddr_str, "", addr); | |
2394 | return paddr_str; | |
2395 | } | |
2396 | ||
2397 | char * | |
2398 | paddr_d (LONGEST addr) | |
2399 | { | |
2400 | char *paddr_str = get_cell (); | |
2401 | if (addr < 0) | |
2402 | decimal2str (paddr_str, "-", -addr); | |
2403 | else | |
2404 | decimal2str (paddr_str, "", addr); | |
2405 | return paddr_str; | |
2406 | } | |
2407 | ||
5683e87a AC |
2408 | /* eliminate warning from compiler on 32-bit systems */ |
2409 | static int thirty_two = 32; | |
2410 | ||
104c1213 | 2411 | char * |
5683e87a | 2412 | phex (ULONGEST l, int sizeof_l) |
104c1213 | 2413 | { |
45a1e866 | 2414 | char *str; |
5683e87a | 2415 | switch (sizeof_l) |
104c1213 JM |
2416 | { |
2417 | case 8: | |
45a1e866 | 2418 | str = get_cell (); |
5683e87a AC |
2419 | sprintf (str, "%08lx%08lx", |
2420 | (unsigned long) (l >> thirty_two), | |
2421 | (unsigned long) (l & 0xffffffff)); | |
104c1213 JM |
2422 | break; |
2423 | case 4: | |
45a1e866 | 2424 | str = get_cell (); |
5683e87a | 2425 | sprintf (str, "%08lx", (unsigned long) l); |
104c1213 JM |
2426 | break; |
2427 | case 2: | |
45a1e866 | 2428 | str = get_cell (); |
5683e87a | 2429 | sprintf (str, "%04x", (unsigned short) (l & 0xffff)); |
104c1213 JM |
2430 | break; |
2431 | default: | |
45a1e866 | 2432 | str = phex (l, sizeof (l)); |
5683e87a | 2433 | break; |
104c1213 | 2434 | } |
5683e87a | 2435 | return str; |
104c1213 JM |
2436 | } |
2437 | ||
c5aa993b | 2438 | char * |
5683e87a | 2439 | phex_nz (ULONGEST l, int sizeof_l) |
c906108c | 2440 | { |
faf833ca | 2441 | char *str; |
5683e87a | 2442 | switch (sizeof_l) |
c906108c | 2443 | { |
c5aa993b JM |
2444 | case 8: |
2445 | { | |
5683e87a | 2446 | unsigned long high = (unsigned long) (l >> thirty_two); |
faf833ca | 2447 | str = get_cell (); |
c5aa993b | 2448 | if (high == 0) |
5683e87a | 2449 | sprintf (str, "%lx", (unsigned long) (l & 0xffffffff)); |
c5aa993b | 2450 | else |
5683e87a AC |
2451 | sprintf (str, "%lx%08lx", |
2452 | high, (unsigned long) (l & 0xffffffff)); | |
c906108c | 2453 | break; |
c5aa993b JM |
2454 | } |
2455 | case 4: | |
faf833ca | 2456 | str = get_cell (); |
5683e87a | 2457 | sprintf (str, "%lx", (unsigned long) l); |
c5aa993b JM |
2458 | break; |
2459 | case 2: | |
faf833ca | 2460 | str = get_cell (); |
5683e87a | 2461 | sprintf (str, "%x", (unsigned short) (l & 0xffff)); |
c5aa993b JM |
2462 | break; |
2463 | default: | |
faf833ca | 2464 | str = phex_nz (l, sizeof (l)); |
5683e87a | 2465 | break; |
c906108c | 2466 | } |
5683e87a | 2467 | return str; |
c906108c | 2468 | } |
ac2e2ef7 AC |
2469 | |
2470 | ||
2471 | /* Convert to / from the hosts pointer to GDB's internal CORE_ADDR | |
2472 | using the target's conversion routines. */ | |
2473 | CORE_ADDR | |
2474 | host_pointer_to_address (void *ptr) | |
2475 | { | |
090a2205 | 2476 | if (sizeof (ptr) != TYPE_LENGTH (builtin_type_void_data_ptr)) |
8e65ff28 AC |
2477 | internal_error (__FILE__, __LINE__, |
2478 | "core_addr_to_void_ptr: bad cast"); | |
090a2205 | 2479 | return POINTER_TO_ADDRESS (builtin_type_void_data_ptr, &ptr); |
ac2e2ef7 AC |
2480 | } |
2481 | ||
2482 | void * | |
2483 | address_to_host_pointer (CORE_ADDR addr) | |
2484 | { | |
2485 | void *ptr; | |
090a2205 | 2486 | if (sizeof (ptr) != TYPE_LENGTH (builtin_type_void_data_ptr)) |
8e65ff28 AC |
2487 | internal_error (__FILE__, __LINE__, |
2488 | "core_addr_to_void_ptr: bad cast"); | |
090a2205 | 2489 | ADDRESS_TO_POINTER (builtin_type_void_data_ptr, &ptr, addr); |
ac2e2ef7 AC |
2490 | return ptr; |
2491 | } | |
03dd37c3 AC |
2492 | |
2493 | /* Convert a CORE_ADDR into a string. */ | |
2494 | const char * | |
2495 | core_addr_to_string (const CORE_ADDR addr) | |
2496 | { | |
2497 | char *str = get_cell (); | |
2498 | strcpy (str, "0x"); | |
2499 | strcat (str, phex_nz (addr, sizeof (addr))); | |
2500 | return str; | |
2501 | } | |
2502 | ||
2503 | /* Convert a string back into a CORE_ADDR. */ | |
2504 | CORE_ADDR | |
2505 | string_to_core_addr (const char *my_string) | |
2506 | { | |
2507 | CORE_ADDR addr = 0; | |
2508 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') | |
2509 | { | |
2510 | /* Assume that it is in decimal. */ | |
2511 | int i; | |
2512 | for (i = 2; my_string[i] != '\0'; i++) | |
2513 | { | |
2514 | if (isdigit (my_string[i])) | |
2515 | addr = (my_string[i] - '0') + (addr * 16); | |
2516 | else if (isxdigit (my_string[i])) | |
2517 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); | |
2518 | else | |
2519 | internal_error (__FILE__, __LINE__, "invalid hex"); | |
2520 | } | |
2521 | } | |
2522 | else | |
2523 | { | |
2524 | /* Assume that it is in decimal. */ | |
2525 | int i; | |
2526 | for (i = 0; my_string[i] != '\0'; i++) | |
2527 | { | |
2528 | if (isdigit (my_string[i])) | |
2529 | addr = (my_string[i] - '0') + (addr * 10); | |
2530 | else | |
2531 | internal_error (__FILE__, __LINE__, "invalid decimal"); | |
2532 | } | |
2533 | } | |
2534 | return addr; | |
2535 | } | |
58d370e0 TT |
2536 | |
2537 | char * | |
2538 | gdb_realpath (const char *filename) | |
2539 | { | |
2540 | #ifdef HAVE_REALPATH | |
2d1b2124 | 2541 | #if defined (PATH_MAX) |
58d370e0 | 2542 | char buf[PATH_MAX]; |
2d1b2124 AC |
2543 | #elif defined (MAXPATHLEN) |
2544 | char buf[MAXPATHLEN]; | |
2545 | #else | |
2546 | #error "Neither PATH_MAX nor MAXPATHLEN defined" | |
2547 | #endif | |
58d370e0 TT |
2548 | char *rp = realpath (filename, buf); |
2549 | return xstrdup (rp ? rp : filename); | |
2550 | #else | |
2551 | return xstrdup (filename); | |
2552 | #endif | |
2553 | } |