Commit | Line | Data |
---|---|---|
c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
1bac305b | 2 | |
a752853e | 3 | Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
05ff989b AC |
4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free |
5 | Software Foundation, Inc. | |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b JM |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | Boston, MA 02111-1307, USA. */ | |
c906108c | 23 | |
4e8f7a8b DJ |
24 | #include "defs.h" |
25 | #include "gdb_assert.h" | |
26 | #include <ctype.h> | |
27 | #include "gdb_string.h" | |
28 | #include "event-top.h" | |
60250e8b | 29 | #include "exceptions.h" |
4e8f7a8b | 30 | |
6a83354a AC |
31 | #ifdef TUI |
32 | #include "tui/tui.h" /* For tui_get_command_dimension. */ | |
33 | #endif | |
34 | ||
9d271fd8 AC |
35 | #ifdef __GO32__ |
36 | #include <pc.h> | |
37 | #endif | |
38 | ||
c906108c SS |
39 | /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */ |
40 | #ifdef reg | |
41 | #undef reg | |
42 | #endif | |
43 | ||
042be3a9 | 44 | #include <signal.h> |
c906108c SS |
45 | #include "gdbcmd.h" |
46 | #include "serial.h" | |
47 | #include "bfd.h" | |
48 | #include "target.h" | |
49 | #include "demangle.h" | |
50 | #include "expression.h" | |
51 | #include "language.h" | |
234b45d4 | 52 | #include "charset.h" |
c906108c | 53 | #include "annotate.h" |
303c8ebd | 54 | #include "filenames.h" |
7b90c3f9 | 55 | #include "symfile.h" |
c906108c | 56 | |
8731e58e | 57 | #include "inferior.h" /* for signed_pointer_to_address */ |
ac2e2ef7 | 58 | |
2d1b2124 AC |
59 | #include <sys/param.h> /* For MAXPATHLEN */ |
60 | ||
3b78cdbb | 61 | #include "gdb_curses.h" |
020cc13c | 62 | |
dbda9972 | 63 | #include "readline/readline.h" |
c906108c | 64 | |
a3828db0 | 65 | #if !HAVE_DECL_MALLOC |
8dbb1c65 | 66 | extern PTR malloc (); /* OK: PTR */ |
3c37485b | 67 | #endif |
a3828db0 | 68 | #if !HAVE_DECL_REALLOC |
8dbb1c65 | 69 | extern PTR realloc (); /* OK: PTR */ |
0e52036f | 70 | #endif |
a3828db0 | 71 | #if !HAVE_DECL_FREE |
81b8eb80 AC |
72 | extern void free (); |
73 | #endif | |
81b8eb80 | 74 | |
c906108c SS |
75 | /* readline defines this. */ |
76 | #undef savestring | |
77 | ||
9a4105ab | 78 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
79 | |
80 | /* Prototypes for local functions */ | |
81 | ||
d9fcf2fb JM |
82 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
83 | va_list, int); | |
c906108c | 84 | |
d9fcf2fb | 85 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 86 | |
e42c9534 AC |
87 | static void do_my_cleanups (struct cleanup **, struct cleanup *); |
88 | ||
a14ed312 | 89 | static void prompt_for_continue (void); |
c906108c | 90 | |
eb0d3137 | 91 | static void set_screen_size (void); |
a14ed312 | 92 | static void set_width (void); |
c906108c | 93 | |
c906108c SS |
94 | /* Chain of cleanup actions established with make_cleanup, |
95 | to be executed if an error happens. */ | |
96 | ||
c5aa993b JM |
97 | static struct cleanup *cleanup_chain; /* cleaned up after a failed command */ |
98 | static struct cleanup *final_cleanup_chain; /* cleaned up when gdb exits */ | |
99 | static struct cleanup *run_cleanup_chain; /* cleaned up on each 'run' */ | |
100 | static struct cleanup *exec_cleanup_chain; /* cleaned up on each execution command */ | |
6426a772 | 101 | /* cleaned up on each error from within an execution command */ |
8731e58e | 102 | static struct cleanup *exec_error_cleanup_chain; |
43ff13b4 JM |
103 | |
104 | /* Pointer to what is left to do for an execution command after the | |
105 | target stops. Used only in asynchronous mode, by targets that | |
106 | support async execution. The finish and until commands use it. So | |
107 | does the target extended-remote command. */ | |
108 | struct continuation *cmd_continuation; | |
c2d11a7d | 109 | struct continuation *intermediate_continuation; |
c906108c SS |
110 | |
111 | /* Nonzero if we have job control. */ | |
112 | ||
113 | int job_control; | |
114 | ||
115 | /* Nonzero means a quit has been requested. */ | |
116 | ||
117 | int quit_flag; | |
118 | ||
119 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
120 | than waiting until QUIT is executed. Be careful in setting this; | |
121 | code which executes with immediate_quit set has to be very careful | |
122 | about being able to deal with being interrupted at any time. It is | |
123 | almost always better to use QUIT; the only exception I can think of | |
124 | is being able to quit out of a system call (using EINTR loses if | |
125 | the SIGINT happens between the previous QUIT and the system call). | |
126 | To immediately quit in the case in which a SIGINT happens between | |
127 | the previous QUIT and setting immediate_quit (desirable anytime we | |
128 | expect to block), call QUIT after setting immediate_quit. */ | |
129 | ||
130 | int immediate_quit; | |
131 | ||
4a351cef AF |
132 | /* Nonzero means that encoded C++/ObjC names should be printed out in their |
133 | C++/ObjC form rather than raw. */ | |
c906108c SS |
134 | |
135 | int demangle = 1; | |
136 | ||
4a351cef AF |
137 | /* Nonzero means that encoded C++/ObjC names should be printed out in their |
138 | C++/ObjC form even in assembler language displays. If this is set, but | |
c906108c SS |
139 | DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */ |
140 | ||
141 | int asm_demangle = 0; | |
142 | ||
143 | /* Nonzero means that strings with character values >0x7F should be printed | |
144 | as octal escapes. Zero means just print the value (e.g. it's an | |
145 | international character, and the terminal or window can cope.) */ | |
146 | ||
147 | int sevenbit_strings = 0; | |
148 | ||
149 | /* String to be printed before error messages, if any. */ | |
150 | ||
151 | char *error_pre_print; | |
152 | ||
153 | /* String to be printed before quit messages, if any. */ | |
154 | ||
155 | char *quit_pre_print; | |
156 | ||
157 | /* String to be printed before warning messages, if any. */ | |
158 | ||
159 | char *warning_pre_print = "\nwarning: "; | |
160 | ||
161 | int pagination_enabled = 1; | |
c906108c | 162 | \f |
c5aa993b | 163 | |
c906108c SS |
164 | /* Add a new cleanup to the cleanup_chain, |
165 | and return the previous chain pointer | |
166 | to be passed later to do_cleanups or discard_cleanups. | |
167 | Args are FUNCTION to clean up with, and ARG to pass to it. */ | |
168 | ||
169 | struct cleanup * | |
e4005526 | 170 | make_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 171 | { |
c5aa993b | 172 | return make_my_cleanup (&cleanup_chain, function, arg); |
c906108c SS |
173 | } |
174 | ||
175 | struct cleanup * | |
e4005526 | 176 | make_final_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 177 | { |
c5aa993b | 178 | return make_my_cleanup (&final_cleanup_chain, function, arg); |
c906108c | 179 | } |
7a292a7a | 180 | |
c906108c | 181 | struct cleanup * |
e4005526 | 182 | make_run_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 183 | { |
c5aa993b | 184 | return make_my_cleanup (&run_cleanup_chain, function, arg); |
c906108c | 185 | } |
7a292a7a | 186 | |
43ff13b4 | 187 | struct cleanup * |
e4005526 | 188 | make_exec_cleanup (make_cleanup_ftype *function, void *arg) |
43ff13b4 | 189 | { |
c5aa993b | 190 | return make_my_cleanup (&exec_cleanup_chain, function, arg); |
43ff13b4 JM |
191 | } |
192 | ||
6426a772 | 193 | struct cleanup * |
e4005526 | 194 | make_exec_error_cleanup (make_cleanup_ftype *function, void *arg) |
6426a772 JM |
195 | { |
196 | return make_my_cleanup (&exec_error_cleanup_chain, function, arg); | |
197 | } | |
198 | ||
7a292a7a | 199 | static void |
fba45db2 | 200 | do_freeargv (void *arg) |
7a292a7a | 201 | { |
c5aa993b | 202 | freeargv ((char **) arg); |
7a292a7a SS |
203 | } |
204 | ||
205 | struct cleanup * | |
fba45db2 | 206 | make_cleanup_freeargv (char **arg) |
7a292a7a SS |
207 | { |
208 | return make_my_cleanup (&cleanup_chain, do_freeargv, arg); | |
209 | } | |
210 | ||
5c65bbb6 AC |
211 | static void |
212 | do_bfd_close_cleanup (void *arg) | |
213 | { | |
214 | bfd_close (arg); | |
215 | } | |
216 | ||
217 | struct cleanup * | |
218 | make_cleanup_bfd_close (bfd *abfd) | |
219 | { | |
220 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
221 | } | |
222 | ||
f5ff8c83 AC |
223 | static void |
224 | do_close_cleanup (void *arg) | |
225 | { | |
f042532c AC |
226 | int *fd = arg; |
227 | close (*fd); | |
228 | xfree (fd); | |
f5ff8c83 AC |
229 | } |
230 | ||
231 | struct cleanup * | |
232 | make_cleanup_close (int fd) | |
233 | { | |
f042532c AC |
234 | int *saved_fd = xmalloc (sizeof (fd)); |
235 | *saved_fd = fd; | |
236 | return make_cleanup (do_close_cleanup, saved_fd); | |
f5ff8c83 AC |
237 | } |
238 | ||
11cf8741 | 239 | static void |
d9fcf2fb | 240 | do_ui_file_delete (void *arg) |
11cf8741 | 241 | { |
d9fcf2fb | 242 | ui_file_delete (arg); |
11cf8741 JM |
243 | } |
244 | ||
245 | struct cleanup * | |
d9fcf2fb | 246 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 247 | { |
d9fcf2fb | 248 | return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg); |
11cf8741 JM |
249 | } |
250 | ||
7b90c3f9 JB |
251 | static void |
252 | do_free_section_addr_info (void *arg) | |
253 | { | |
254 | free_section_addr_info (arg); | |
255 | } | |
256 | ||
257 | struct cleanup * | |
258 | make_cleanup_free_section_addr_info (struct section_addr_info *addrs) | |
259 | { | |
260 | return make_my_cleanup (&cleanup_chain, do_free_section_addr_info, addrs); | |
261 | } | |
262 | ||
263 | ||
c906108c | 264 | struct cleanup * |
e4005526 AC |
265 | make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function, |
266 | void *arg) | |
c906108c | 267 | { |
52f0bd74 | 268 | struct cleanup *new |
8731e58e | 269 | = (struct cleanup *) xmalloc (sizeof (struct cleanup)); |
52f0bd74 | 270 | struct cleanup *old_chain = *pmy_chain; |
c906108c SS |
271 | |
272 | new->next = *pmy_chain; | |
273 | new->function = function; | |
274 | new->arg = arg; | |
275 | *pmy_chain = new; | |
276 | ||
277 | return old_chain; | |
278 | } | |
279 | ||
280 | /* Discard cleanups and do the actions they describe | |
281 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
282 | ||
283 | void | |
aa1ee363 | 284 | do_cleanups (struct cleanup *old_chain) |
c906108c | 285 | { |
c5aa993b | 286 | do_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
287 | } |
288 | ||
289 | void | |
aa1ee363 | 290 | do_final_cleanups (struct cleanup *old_chain) |
c906108c | 291 | { |
c5aa993b | 292 | do_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
293 | } |
294 | ||
295 | void | |
aa1ee363 | 296 | do_run_cleanups (struct cleanup *old_chain) |
c906108c | 297 | { |
c5aa993b | 298 | do_my_cleanups (&run_cleanup_chain, old_chain); |
c906108c SS |
299 | } |
300 | ||
43ff13b4 | 301 | void |
aa1ee363 | 302 | do_exec_cleanups (struct cleanup *old_chain) |
43ff13b4 | 303 | { |
c5aa993b | 304 | do_my_cleanups (&exec_cleanup_chain, old_chain); |
43ff13b4 JM |
305 | } |
306 | ||
6426a772 | 307 | void |
aa1ee363 | 308 | do_exec_error_cleanups (struct cleanup *old_chain) |
6426a772 JM |
309 | { |
310 | do_my_cleanups (&exec_error_cleanup_chain, old_chain); | |
311 | } | |
312 | ||
e42c9534 | 313 | static void |
aa1ee363 AC |
314 | do_my_cleanups (struct cleanup **pmy_chain, |
315 | struct cleanup *old_chain) | |
c906108c | 316 | { |
52f0bd74 | 317 | struct cleanup *ptr; |
c906108c SS |
318 | while ((ptr = *pmy_chain) != old_chain) |
319 | { | |
320 | *pmy_chain = ptr->next; /* Do this first incase recursion */ | |
321 | (*ptr->function) (ptr->arg); | |
b8c9b27d | 322 | xfree (ptr); |
c906108c SS |
323 | } |
324 | } | |
325 | ||
326 | /* Discard cleanups, not doing the actions they describe, | |
327 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
328 | ||
329 | void | |
aa1ee363 | 330 | discard_cleanups (struct cleanup *old_chain) |
c906108c | 331 | { |
c5aa993b | 332 | discard_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
333 | } |
334 | ||
335 | void | |
aa1ee363 | 336 | discard_final_cleanups (struct cleanup *old_chain) |
c906108c | 337 | { |
c5aa993b | 338 | discard_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
339 | } |
340 | ||
6426a772 | 341 | void |
aa1ee363 | 342 | discard_exec_error_cleanups (struct cleanup *old_chain) |
6426a772 JM |
343 | { |
344 | discard_my_cleanups (&exec_error_cleanup_chain, old_chain); | |
345 | } | |
346 | ||
c906108c | 347 | void |
aa1ee363 AC |
348 | discard_my_cleanups (struct cleanup **pmy_chain, |
349 | struct cleanup *old_chain) | |
c906108c | 350 | { |
52f0bd74 | 351 | struct cleanup *ptr; |
c906108c SS |
352 | while ((ptr = *pmy_chain) != old_chain) |
353 | { | |
354 | *pmy_chain = ptr->next; | |
b8c9b27d | 355 | xfree (ptr); |
c906108c SS |
356 | } |
357 | } | |
358 | ||
359 | /* Set the cleanup_chain to 0, and return the old cleanup chain. */ | |
360 | struct cleanup * | |
fba45db2 | 361 | save_cleanups (void) |
c906108c | 362 | { |
c5aa993b | 363 | return save_my_cleanups (&cleanup_chain); |
c906108c SS |
364 | } |
365 | ||
366 | struct cleanup * | |
fba45db2 | 367 | save_final_cleanups (void) |
c906108c | 368 | { |
c5aa993b | 369 | return save_my_cleanups (&final_cleanup_chain); |
c906108c SS |
370 | } |
371 | ||
372 | struct cleanup * | |
fba45db2 | 373 | save_my_cleanups (struct cleanup **pmy_chain) |
c906108c SS |
374 | { |
375 | struct cleanup *old_chain = *pmy_chain; | |
376 | ||
377 | *pmy_chain = 0; | |
378 | return old_chain; | |
379 | } | |
380 | ||
381 | /* Restore the cleanup chain from a previously saved chain. */ | |
382 | void | |
fba45db2 | 383 | restore_cleanups (struct cleanup *chain) |
c906108c | 384 | { |
c5aa993b | 385 | restore_my_cleanups (&cleanup_chain, chain); |
c906108c SS |
386 | } |
387 | ||
388 | void | |
fba45db2 | 389 | restore_final_cleanups (struct cleanup *chain) |
c906108c | 390 | { |
c5aa993b | 391 | restore_my_cleanups (&final_cleanup_chain, chain); |
c906108c SS |
392 | } |
393 | ||
394 | void | |
fba45db2 | 395 | restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain) |
c906108c SS |
396 | { |
397 | *pmy_chain = chain; | |
398 | } | |
399 | ||
400 | /* This function is useful for cleanups. | |
401 | Do | |
402 | ||
c5aa993b JM |
403 | foo = xmalloc (...); |
404 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
405 | |
406 | to arrange to free the object thus allocated. */ | |
407 | ||
408 | void | |
2f9429ae | 409 | free_current_contents (void *ptr) |
c906108c | 410 | { |
2f9429ae | 411 | void **location = ptr; |
e2f9c474 | 412 | if (location == NULL) |
8e65ff28 | 413 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 414 | _("free_current_contents: NULL pointer")); |
2f9429ae | 415 | if (*location != NULL) |
e2f9c474 | 416 | { |
b8c9b27d | 417 | xfree (*location); |
e2f9c474 AC |
418 | *location = NULL; |
419 | } | |
c906108c SS |
420 | } |
421 | ||
422 | /* Provide a known function that does nothing, to use as a base for | |
423 | for a possibly long chain of cleanups. This is useful where we | |
424 | use the cleanup chain for handling normal cleanups as well as dealing | |
425 | with cleanups that need to be done as a result of a call to error(). | |
426 | In such cases, we may not be certain where the first cleanup is, unless | |
427 | we have a do-nothing one to always use as the base. */ | |
428 | ||
c906108c | 429 | void |
e4005526 | 430 | null_cleanup (void *arg) |
c906108c SS |
431 | { |
432 | } | |
433 | ||
74f832da | 434 | /* Add a continuation to the continuation list, the global list |
c2d11a7d | 435 | cmd_continuation. The new continuation will be added at the front.*/ |
43ff13b4 | 436 | void |
74f832da KB |
437 | add_continuation (void (*continuation_hook) (struct continuation_arg *), |
438 | struct continuation_arg *arg_list) | |
43ff13b4 | 439 | { |
c5aa993b | 440 | struct continuation *continuation_ptr; |
43ff13b4 | 441 | |
8731e58e AC |
442 | continuation_ptr = |
443 | (struct continuation *) xmalloc (sizeof (struct continuation)); | |
c5aa993b JM |
444 | continuation_ptr->continuation_hook = continuation_hook; |
445 | continuation_ptr->arg_list = arg_list; | |
446 | continuation_ptr->next = cmd_continuation; | |
447 | cmd_continuation = continuation_ptr; | |
43ff13b4 JM |
448 | } |
449 | ||
450 | /* Walk down the cmd_continuation list, and execute all the | |
c2d11a7d JM |
451 | continuations. There is a problem though. In some cases new |
452 | continuations may be added while we are in the middle of this | |
453 | loop. If this happens they will be added in the front, and done | |
454 | before we have a chance of exhausting those that were already | |
455 | there. We need to then save the beginning of the list in a pointer | |
456 | and do the continuations from there on, instead of using the | |
0a4a0819 | 457 | global beginning of list as our iteration pointer. */ |
c5aa993b | 458 | void |
fba45db2 | 459 | do_all_continuations (void) |
c2d11a7d JM |
460 | { |
461 | struct continuation *continuation_ptr; | |
462 | struct continuation *saved_continuation; | |
463 | ||
464 | /* Copy the list header into another pointer, and set the global | |
465 | list header to null, so that the global list can change as a side | |
466 | effect of invoking the continuations and the processing of | |
467 | the preexisting continuations will not be affected. */ | |
468 | continuation_ptr = cmd_continuation; | |
469 | cmd_continuation = NULL; | |
470 | ||
0a4a0819 | 471 | /* Work now on the list we have set aside. */ |
c2d11a7d | 472 | while (continuation_ptr) |
8731e58e AC |
473 | { |
474 | (continuation_ptr->continuation_hook) (continuation_ptr->arg_list); | |
475 | saved_continuation = continuation_ptr; | |
476 | continuation_ptr = continuation_ptr->next; | |
477 | xfree (saved_continuation); | |
478 | } | |
c2d11a7d JM |
479 | } |
480 | ||
481 | /* Walk down the cmd_continuation list, and get rid of all the | |
482 | continuations. */ | |
483 | void | |
fba45db2 | 484 | discard_all_continuations (void) |
43ff13b4 | 485 | { |
c5aa993b | 486 | struct continuation *continuation_ptr; |
43ff13b4 | 487 | |
c5aa993b JM |
488 | while (cmd_continuation) |
489 | { | |
c5aa993b JM |
490 | continuation_ptr = cmd_continuation; |
491 | cmd_continuation = continuation_ptr->next; | |
b8c9b27d | 492 | xfree (continuation_ptr); |
c5aa993b | 493 | } |
43ff13b4 | 494 | } |
c2c6d25f | 495 | |
57e687d9 | 496 | /* Add a continuation to the continuation list, the global list |
0a4a0819 MS |
497 | intermediate_continuation. The new continuation will be added at |
498 | the front. */ | |
c2d11a7d | 499 | void |
74f832da KB |
500 | add_intermediate_continuation (void (*continuation_hook) |
501 | (struct continuation_arg *), | |
502 | struct continuation_arg *arg_list) | |
c2d11a7d JM |
503 | { |
504 | struct continuation *continuation_ptr; | |
505 | ||
8731e58e AC |
506 | continuation_ptr = |
507 | (struct continuation *) xmalloc (sizeof (struct continuation)); | |
c2d11a7d JM |
508 | continuation_ptr->continuation_hook = continuation_hook; |
509 | continuation_ptr->arg_list = arg_list; | |
510 | continuation_ptr->next = intermediate_continuation; | |
511 | intermediate_continuation = continuation_ptr; | |
512 | } | |
513 | ||
514 | /* Walk down the cmd_continuation list, and execute all the | |
515 | continuations. There is a problem though. In some cases new | |
516 | continuations may be added while we are in the middle of this | |
517 | loop. If this happens they will be added in the front, and done | |
518 | before we have a chance of exhausting those that were already | |
519 | there. We need to then save the beginning of the list in a pointer | |
520 | and do the continuations from there on, instead of using the | |
521 | global beginning of list as our iteration pointer.*/ | |
522 | void | |
fba45db2 | 523 | do_all_intermediate_continuations (void) |
c2d11a7d JM |
524 | { |
525 | struct continuation *continuation_ptr; | |
526 | struct continuation *saved_continuation; | |
527 | ||
528 | /* Copy the list header into another pointer, and set the global | |
529 | list header to null, so that the global list can change as a side | |
530 | effect of invoking the continuations and the processing of | |
531 | the preexisting continuations will not be affected. */ | |
532 | continuation_ptr = intermediate_continuation; | |
533 | intermediate_continuation = NULL; | |
534 | ||
0a4a0819 | 535 | /* Work now on the list we have set aside. */ |
c2d11a7d | 536 | while (continuation_ptr) |
8731e58e AC |
537 | { |
538 | (continuation_ptr->continuation_hook) (continuation_ptr->arg_list); | |
539 | saved_continuation = continuation_ptr; | |
540 | continuation_ptr = continuation_ptr->next; | |
541 | xfree (saved_continuation); | |
542 | } | |
c2d11a7d JM |
543 | } |
544 | ||
c2c6d25f JM |
545 | /* Walk down the cmd_continuation list, and get rid of all the |
546 | continuations. */ | |
547 | void | |
fba45db2 | 548 | discard_all_intermediate_continuations (void) |
c2c6d25f JM |
549 | { |
550 | struct continuation *continuation_ptr; | |
551 | ||
c2d11a7d | 552 | while (intermediate_continuation) |
c2c6d25f | 553 | { |
c2d11a7d JM |
554 | continuation_ptr = intermediate_continuation; |
555 | intermediate_continuation = continuation_ptr->next; | |
b8c9b27d | 556 | xfree (continuation_ptr); |
c2c6d25f JM |
557 | } |
558 | } | |
c906108c | 559 | \f |
c5aa993b | 560 | |
8731e58e | 561 | |
f5a96129 AC |
562 | /* Print a warning message. The first argument STRING is the warning |
563 | message, used as an fprintf format string, the second is the | |
564 | va_list of arguments for that string. A warning is unfiltered (not | |
565 | paginated) so that the user does not need to page through each | |
566 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
567 | |
568 | void | |
f5a96129 | 569 | vwarning (const char *string, va_list args) |
c906108c | 570 | { |
9a4105ab AC |
571 | if (deprecated_warning_hook) |
572 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
573 | else |
574 | { | |
575 | target_terminal_ours (); | |
576 | wrap_here (""); /* Force out any buffered output */ | |
577 | gdb_flush (gdb_stdout); | |
578 | if (warning_pre_print) | |
306d9ac5 | 579 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
580 | vfprintf_unfiltered (gdb_stderr, string, args); |
581 | fprintf_unfiltered (gdb_stderr, "\n"); | |
582 | va_end (args); | |
583 | } | |
c906108c SS |
584 | } |
585 | ||
586 | /* Print a warning message. | |
587 | The first argument STRING is the warning message, used as a fprintf string, | |
588 | and the remaining args are passed as arguments to it. | |
589 | The primary difference between warnings and errors is that a warning | |
590 | does not force the return to command level. */ | |
591 | ||
c906108c | 592 | void |
8731e58e | 593 | warning (const char *string, ...) |
c906108c SS |
594 | { |
595 | va_list args; | |
c906108c | 596 | va_start (args, string); |
f5a96129 AC |
597 | vwarning (string, args); |
598 | va_end (args); | |
c906108c SS |
599 | } |
600 | ||
c906108c SS |
601 | /* Print an error message and return to command level. |
602 | The first argument STRING is the error message, used as a fprintf string, | |
603 | and the remaining args are passed as arguments to it. */ | |
604 | ||
4ce44c66 JM |
605 | NORETURN void |
606 | verror (const char *string, va_list args) | |
607 | { | |
6b1b7650 | 608 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
609 | } |
610 | ||
c906108c | 611 | NORETURN void |
8731e58e | 612 | error (const char *string, ...) |
c906108c SS |
613 | { |
614 | va_list args; | |
c906108c | 615 | va_start (args, string); |
6b1b7650 | 616 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 | 617 | va_end (args); |
c906108c SS |
618 | } |
619 | ||
d75e3c94 JJ |
620 | /* Print an error message and quit. |
621 | The first argument STRING is the error message, used as a fprintf string, | |
622 | and the remaining args are passed as arguments to it. */ | |
623 | ||
624 | NORETURN void | |
625 | vfatal (const char *string, va_list args) | |
626 | { | |
6b1b7650 | 627 | throw_vfatal (string, args); |
d75e3c94 JJ |
628 | } |
629 | ||
630 | NORETURN void | |
631 | fatal (const char *string, ...) | |
632 | { | |
633 | va_list args; | |
634 | va_start (args, string); | |
6b1b7650 | 635 | throw_vfatal (string, args); |
d75e3c94 JJ |
636 | va_end (args); |
637 | } | |
638 | ||
d75e3c94 JJ |
639 | NORETURN void |
640 | error_stream (struct ui_file *stream) | |
2acceee2 | 641 | { |
4ce44c66 | 642 | long len; |
6b1b7650 AC |
643 | char *message = ui_file_xstrdup (stream, &len); |
644 | make_cleanup (xfree, message); | |
8a3fe4f8 | 645 | error (("%s"), message); |
2acceee2 | 646 | } |
c906108c | 647 | |
dec43320 AC |
648 | /* Print a message reporting an internal error/warning. Ask the user |
649 | if they want to continue, dump core, or just exit. Return | |
650 | something to indicate a quit. */ | |
c906108c | 651 | |
dec43320 | 652 | struct internal_problem |
c906108c | 653 | { |
dec43320 AC |
654 | const char *name; |
655 | /* FIXME: cagney/2002-08-15: There should be ``maint set/show'' | |
656 | commands available for controlling these variables. */ | |
657 | enum auto_boolean should_quit; | |
658 | enum auto_boolean should_dump_core; | |
659 | }; | |
660 | ||
661 | /* Report a problem, internal to GDB, to the user. Once the problem | |
662 | has been reported, and assuming GDB didn't quit, the caller can | |
663 | either allow execution to resume or throw an error. */ | |
664 | ||
665 | static void | |
666 | internal_vproblem (struct internal_problem *problem, | |
8731e58e | 667 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 668 | { |
dec43320 | 669 | static int dejavu; |
375fc983 | 670 | int quit_p; |
7be570e7 | 671 | int dump_core_p; |
714b1282 | 672 | char *reason; |
c906108c | 673 | |
dec43320 | 674 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
675 | { |
676 | static char msg[] = "Recursive internal problem.\n"; | |
677 | switch (dejavu) | |
678 | { | |
679 | case 0: | |
680 | dejavu = 1; | |
681 | break; | |
682 | case 1: | |
683 | dejavu = 2; | |
684 | fputs_unfiltered (msg, gdb_stderr); | |
685 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
686 | default: | |
687 | dejavu = 3; | |
688 | write (STDERR_FILENO, msg, sizeof (msg)); | |
689 | exit (1); | |
690 | } | |
691 | } | |
c906108c | 692 | |
dec43320 | 693 | /* Try to get the message out and at the start of a new line. */ |
4261bedc | 694 | target_terminal_ours (); |
dec43320 AC |
695 | begin_line (); |
696 | ||
714b1282 AC |
697 | /* Create a string containing the full error/warning message. Need |
698 | to call query with this full string, as otherwize the reason | |
699 | (error/warning) and question become separated. Format using a | |
700 | style similar to a compiler error message. Include extra detail | |
701 | so that the user knows that they are living on the edge. */ | |
702 | { | |
703 | char *msg; | |
e623b504 | 704 | msg = xstrvprintf (fmt, ap); |
b435e160 | 705 | reason = xstrprintf ("\ |
714b1282 AC |
706 | %s:%d: %s: %s\n\ |
707 | A problem internal to GDB has been detected,\n\ | |
708 | further debugging may prove unreliable.", file, line, problem->name, msg); | |
709 | xfree (msg); | |
710 | make_cleanup (xfree, reason); | |
711 | } | |
7be570e7 | 712 | |
dec43320 AC |
713 | switch (problem->should_quit) |
714 | { | |
715 | case AUTO_BOOLEAN_AUTO: | |
716 | /* Default (yes/batch case) is to quit GDB. When in batch mode | |
8731e58e AC |
717 | this lessens the likelhood of GDB going into an infinate |
718 | loop. */ | |
e2e0b3e5 | 719 | quit_p = query (_("%s\nQuit this debugging session? "), reason); |
dec43320 AC |
720 | break; |
721 | case AUTO_BOOLEAN_TRUE: | |
722 | quit_p = 1; | |
723 | break; | |
724 | case AUTO_BOOLEAN_FALSE: | |
725 | quit_p = 0; | |
726 | break; | |
727 | default: | |
e2e0b3e5 | 728 | internal_error (__FILE__, __LINE__, _("bad switch")); |
dec43320 AC |
729 | } |
730 | ||
731 | switch (problem->should_dump_core) | |
732 | { | |
733 | case AUTO_BOOLEAN_AUTO: | |
734 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
8731e58e AC |
735 | `dropping' so that it is easier to see that something went |
736 | wrong in GDB. */ | |
e2e0b3e5 | 737 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason); |
dec43320 AC |
738 | break; |
739 | break; | |
740 | case AUTO_BOOLEAN_TRUE: | |
741 | dump_core_p = 1; | |
742 | break; | |
743 | case AUTO_BOOLEAN_FALSE: | |
744 | dump_core_p = 0; | |
745 | break; | |
746 | default: | |
e2e0b3e5 | 747 | internal_error (__FILE__, __LINE__, _("bad switch")); |
dec43320 | 748 | } |
7be570e7 | 749 | |
375fc983 | 750 | if (quit_p) |
7be570e7 JM |
751 | { |
752 | if (dump_core_p) | |
8731e58e | 753 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
375fc983 AC |
754 | else |
755 | exit (1); | |
7be570e7 JM |
756 | } |
757 | else | |
758 | { | |
759 | if (dump_core_p) | |
375fc983 AC |
760 | { |
761 | if (fork () == 0) | |
8731e58e | 762 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
375fc983 | 763 | } |
7be570e7 | 764 | } |
96baa820 JM |
765 | |
766 | dejavu = 0; | |
dec43320 AC |
767 | } |
768 | ||
769 | static struct internal_problem internal_error_problem = { | |
770 | "internal-error", AUTO_BOOLEAN_AUTO, AUTO_BOOLEAN_AUTO | |
771 | }; | |
772 | ||
773 | NORETURN void | |
8731e58e | 774 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
775 | { |
776 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
315a522e | 777 | deprecated_throw_reason (RETURN_ERROR); |
c906108c SS |
778 | } |
779 | ||
4ce44c66 | 780 | NORETURN void |
8e65ff28 | 781 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
782 | { |
783 | va_list ap; | |
784 | va_start (ap, string); | |
8e65ff28 | 785 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
786 | va_end (ap); |
787 | } | |
788 | ||
dec43320 | 789 | static struct internal_problem internal_warning_problem = { |
d833db3b | 790 | "internal-warning", AUTO_BOOLEAN_AUTO, AUTO_BOOLEAN_AUTO |
dec43320 AC |
791 | }; |
792 | ||
793 | void | |
8731e58e | 794 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
795 | { |
796 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
797 | } | |
798 | ||
799 | void | |
800 | internal_warning (const char *file, int line, const char *string, ...) | |
801 | { | |
802 | va_list ap; | |
803 | va_start (ap, string); | |
804 | internal_vwarning (file, line, string, ap); | |
805 | va_end (ap); | |
806 | } | |
807 | ||
c906108c SS |
808 | /* The strerror() function can return NULL for errno values that are |
809 | out of range. Provide a "safe" version that always returns a | |
810 | printable string. */ | |
811 | ||
812 | char * | |
fba45db2 | 813 | safe_strerror (int errnum) |
c906108c SS |
814 | { |
815 | char *msg; | |
816 | static char buf[32]; | |
817 | ||
5cb316ef AC |
818 | msg = strerror (errnum); |
819 | if (msg == NULL) | |
c906108c SS |
820 | { |
821 | sprintf (buf, "(undocumented errno %d)", errnum); | |
822 | msg = buf; | |
823 | } | |
824 | return (msg); | |
825 | } | |
826 | ||
c906108c SS |
827 | /* Print the system error message for errno, and also mention STRING |
828 | as the file name for which the error was encountered. | |
829 | Then return to command level. */ | |
830 | ||
831 | NORETURN void | |
6972bc8b | 832 | perror_with_name (const char *string) |
c906108c SS |
833 | { |
834 | char *err; | |
835 | char *combined; | |
836 | ||
837 | err = safe_strerror (errno); | |
838 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
839 | strcpy (combined, string); | |
840 | strcat (combined, ": "); | |
841 | strcat (combined, err); | |
842 | ||
843 | /* I understand setting these is a matter of taste. Still, some people | |
844 | may clear errno but not know about bfd_error. Doing this here is not | |
845 | unreasonable. */ | |
846 | bfd_set_error (bfd_error_no_error); | |
847 | errno = 0; | |
848 | ||
8a3fe4f8 | 849 | error (_("%s."), combined); |
c906108c SS |
850 | } |
851 | ||
852 | /* Print the system error message for ERRCODE, and also mention STRING | |
853 | as the file name for which the error was encountered. */ | |
854 | ||
855 | void | |
6972bc8b | 856 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
857 | { |
858 | char *err; | |
859 | char *combined; | |
860 | ||
861 | err = safe_strerror (errcode); | |
862 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
863 | strcpy (combined, string); | |
864 | strcat (combined, ": "); | |
865 | strcat (combined, err); | |
866 | ||
867 | /* We want anything which was printed on stdout to come out first, before | |
868 | this message. */ | |
869 | gdb_flush (gdb_stdout); | |
870 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
871 | } | |
872 | ||
873 | /* Control C eventually causes this to be called, at a convenient time. */ | |
874 | ||
875 | void | |
fba45db2 | 876 | quit (void) |
c906108c | 877 | { |
7be570e7 JM |
878 | #ifdef __MSDOS__ |
879 | /* No steenking SIGINT will ever be coming our way when the | |
880 | program is resumed. Don't lie. */ | |
e06e2353 | 881 | fatal ("Quit"); |
7be570e7 | 882 | #else |
c906108c | 883 | if (job_control |
8731e58e AC |
884 | /* If there is no terminal switching for this target, then we can't |
885 | possibly get screwed by the lack of job control. */ | |
c906108c | 886 | || current_target.to_terminal_ours == NULL) |
e06e2353 | 887 | fatal ("Quit"); |
c906108c | 888 | else |
e06e2353 | 889 | fatal ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 890 | #endif |
c906108c SS |
891 | } |
892 | ||
c906108c | 893 | /* Control C comes here */ |
c906108c | 894 | void |
fba45db2 | 895 | request_quit (int signo) |
c906108c SS |
896 | { |
897 | quit_flag = 1; | |
1f04aa62 AC |
898 | /* Restore the signal handler. Harmless with BSD-style signals, |
899 | needed for System V-style signals. */ | |
c906108c SS |
900 | signal (signo, request_quit); |
901 | ||
c5aa993b | 902 | if (immediate_quit) |
c906108c | 903 | quit (); |
c906108c | 904 | } |
c906108c | 905 | \f |
c906108c SS |
906 | /* Called when a memory allocation fails, with the number of bytes of |
907 | memory requested in SIZE. */ | |
908 | ||
909 | NORETURN void | |
fba45db2 | 910 | nomem (long size) |
c906108c SS |
911 | { |
912 | if (size > 0) | |
913 | { | |
8e65ff28 | 914 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 915 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 916 | size); |
c906108c SS |
917 | } |
918 | else | |
919 | { | |
e2e0b3e5 | 920 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
921 | } |
922 | } | |
923 | ||
c0e61796 AC |
924 | /* The xmalloc() (libiberty.h) family of memory management routines. |
925 | ||
926 | These are like the ISO-C malloc() family except that they implement | |
927 | consistent semantics and guard against typical memory management | |
7936743b | 928 | problems. */ |
c0e61796 AC |
929 | |
930 | /* NOTE: These are declared using PTR to ensure consistency with | |
931 | "libiberty.h". xfree() is GDB local. */ | |
932 | ||
8dbb1c65 | 933 | PTR /* OK: PTR */ |
c0e61796 AC |
934 | xmalloc (size_t size) |
935 | { | |
7936743b AC |
936 | void *val; |
937 | ||
938 | /* See libiberty/xmalloc.c. This function need's to match that's | |
939 | semantics. It never returns NULL. */ | |
940 | if (size == 0) | |
941 | size = 1; | |
942 | ||
943 | val = malloc (size); /* OK: malloc */ | |
944 | if (val == NULL) | |
945 | nomem (size); | |
946 | ||
947 | return (val); | |
c0e61796 | 948 | } |
c906108c | 949 | |
5b90c7b5 AC |
950 | void * |
951 | xzalloc (size_t size) | |
952 | { | |
953 | return xcalloc (1, size); | |
954 | } | |
955 | ||
8dbb1c65 AC |
956 | PTR /* OK: PTR */ |
957 | xrealloc (PTR ptr, size_t size) /* OK: PTR */ | |
c906108c | 958 | { |
0efffb96 AC |
959 | void *val; |
960 | ||
961 | /* See libiberty/xmalloc.c. This function need's to match that's | |
962 | semantics. It never returns NULL. */ | |
963 | if (size == 0) | |
964 | size = 1; | |
965 | ||
966 | if (ptr != NULL) | |
967 | val = realloc (ptr, size); /* OK: realloc */ | |
968 | else | |
969 | val = malloc (size); /* OK: malloc */ | |
970 | if (val == NULL) | |
971 | nomem (size); | |
972 | ||
973 | return (val); | |
c906108c | 974 | } |
b8c9b27d | 975 | |
8dbb1c65 | 976 | PTR /* OK: PTR */ |
c0e61796 AC |
977 | xcalloc (size_t number, size_t size) |
978 | { | |
aa2ee5f6 AC |
979 | void *mem; |
980 | ||
981 | /* See libiberty/xmalloc.c. This function need's to match that's | |
982 | semantics. It never returns NULL. */ | |
983 | if (number == 0 || size == 0) | |
984 | { | |
985 | number = 1; | |
986 | size = 1; | |
987 | } | |
988 | ||
989 | mem = calloc (number, size); /* OK: xcalloc */ | |
990 | if (mem == NULL) | |
991 | nomem (number * size); | |
992 | ||
993 | return mem; | |
c0e61796 | 994 | } |
b8c9b27d KB |
995 | |
996 | void | |
997 | xfree (void *ptr) | |
998 | { | |
2dc74dc1 AC |
999 | if (ptr != NULL) |
1000 | free (ptr); /* OK: free */ | |
b8c9b27d | 1001 | } |
c906108c | 1002 | \f |
c5aa993b | 1003 | |
76995688 AC |
1004 | /* Like asprintf/vasprintf but get an internal_error if the call |
1005 | fails. */ | |
1006 | ||
9ebf4acf AC |
1007 | char * |
1008 | xstrprintf (const char *format, ...) | |
1009 | { | |
1010 | char *ret; | |
1011 | va_list args; | |
1012 | va_start (args, format); | |
e623b504 | 1013 | ret = xstrvprintf (format, args); |
9ebf4acf AC |
1014 | va_end (args); |
1015 | return ret; | |
1016 | } | |
1017 | ||
76995688 AC |
1018 | void |
1019 | xasprintf (char **ret, const char *format, ...) | |
1020 | { | |
1021 | va_list args; | |
1022 | va_start (args, format); | |
e623b504 | 1023 | (*ret) = xstrvprintf (format, args); |
76995688 AC |
1024 | va_end (args); |
1025 | } | |
1026 | ||
1027 | void | |
1028 | xvasprintf (char **ret, const char *format, va_list ap) | |
1029 | { | |
a552edd9 | 1030 | (*ret) = xstrvprintf (format, ap); |
76995688 AC |
1031 | } |
1032 | ||
e623b504 AC |
1033 | char * |
1034 | xstrvprintf (const char *format, va_list ap) | |
1035 | { | |
1036 | char *ret = NULL; | |
1037 | int status = vasprintf (&ret, format, ap); | |
1038 | /* NULL is returned when there was a memory allocation problem. */ | |
1039 | if (ret == NULL) | |
1040 | nomem (0); | |
1041 | /* A negative status (the printed length) with a non-NULL buffer | |
1042 | should never happen, but just to be sure. */ | |
1043 | if (status < 0) | |
1044 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 1045 | _("vasprintf call failed (errno %d)"), errno); |
e623b504 AC |
1046 | return ret; |
1047 | } | |
76995688 | 1048 | |
c906108c SS |
1049 | /* My replacement for the read system call. |
1050 | Used like `read' but keeps going if `read' returns too soon. */ | |
1051 | ||
1052 | int | |
fba45db2 | 1053 | myread (int desc, char *addr, int len) |
c906108c | 1054 | { |
52f0bd74 | 1055 | int val; |
c906108c SS |
1056 | int orglen = len; |
1057 | ||
1058 | while (len > 0) | |
1059 | { | |
1060 | val = read (desc, addr, len); | |
1061 | if (val < 0) | |
1062 | return val; | |
1063 | if (val == 0) | |
1064 | return orglen - len; | |
1065 | len -= val; | |
1066 | addr += val; | |
1067 | } | |
1068 | return orglen; | |
1069 | } | |
1070 | \f | |
1071 | /* Make a copy of the string at PTR with SIZE characters | |
1072 | (and add a null character at the end in the copy). | |
1073 | Uses malloc to get the space. Returns the address of the copy. */ | |
1074 | ||
1075 | char * | |
5565b556 | 1076 | savestring (const char *ptr, size_t size) |
c906108c | 1077 | { |
52f0bd74 | 1078 | char *p = (char *) xmalloc (size + 1); |
c906108c SS |
1079 | memcpy (p, ptr, size); |
1080 | p[size] = 0; | |
1081 | return p; | |
1082 | } | |
1083 | ||
c906108c | 1084 | void |
aa1ee363 | 1085 | print_spaces (int n, struct ui_file *file) |
c906108c | 1086 | { |
392a587b | 1087 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1088 | } |
1089 | ||
1090 | /* Print a host address. */ | |
1091 | ||
1092 | void | |
ac16bf07 | 1093 | gdb_print_host_address (const void *addr, struct ui_file *stream) |
c906108c SS |
1094 | { |
1095 | ||
1096 | /* We could use the %p conversion specifier to fprintf if we had any | |
1097 | way of knowing whether this host supports it. But the following | |
1098 | should work on the Alpha and on 32 bit machines. */ | |
1099 | ||
c5aa993b | 1100 | fprintf_filtered (stream, "0x%lx", (unsigned long) addr); |
c906108c SS |
1101 | } |
1102 | ||
1103 | /* Ask user a y-or-n question and return 1 iff answer is yes. | |
1104 | Takes three args which are given to printf to print the question. | |
1105 | The first, a control string, should end in "? ". | |
1106 | It should not say how to answer, because we do that. */ | |
1107 | ||
1108 | /* VARARGS */ | |
1109 | int | |
8731e58e | 1110 | query (const char *ctlstr, ...) |
c906108c SS |
1111 | { |
1112 | va_list args; | |
52f0bd74 AC |
1113 | int answer; |
1114 | int ans2; | |
c906108c SS |
1115 | int retval; |
1116 | ||
9a4105ab | 1117 | if (deprecated_query_hook) |
c906108c | 1118 | { |
3e6bb910 | 1119 | va_start (args, ctlstr); |
9a4105ab | 1120 | return deprecated_query_hook (ctlstr, args); |
c906108c SS |
1121 | } |
1122 | ||
1123 | /* Automatically answer "yes" if input is not from a terminal. */ | |
1124 | if (!input_from_terminal_p ()) | |
1125 | return 1; | |
c906108c SS |
1126 | |
1127 | while (1) | |
1128 | { | |
1129 | wrap_here (""); /* Flush any buffered output */ | |
1130 | gdb_flush (gdb_stdout); | |
1131 | ||
1132 | if (annotation_level > 1) | |
1133 | printf_filtered ("\n\032\032pre-query\n"); | |
1134 | ||
3e6bb910 | 1135 | va_start (args, ctlstr); |
c906108c | 1136 | vfprintf_filtered (gdb_stdout, ctlstr, args); |
3e6bb910 | 1137 | va_end (args); |
c906108c SS |
1138 | printf_filtered ("(y or n) "); |
1139 | ||
1140 | if (annotation_level > 1) | |
1141 | printf_filtered ("\n\032\032query\n"); | |
1142 | ||
c5aa993b | 1143 | wrap_here (""); |
c906108c SS |
1144 | gdb_flush (gdb_stdout); |
1145 | ||
37767e42 | 1146 | answer = fgetc (stdin); |
c906108c SS |
1147 | clearerr (stdin); /* in case of C-d */ |
1148 | if (answer == EOF) /* C-d */ | |
c5aa993b | 1149 | { |
c906108c SS |
1150 | retval = 1; |
1151 | break; | |
1152 | } | |
1153 | /* Eat rest of input line, to EOF or newline */ | |
37767e42 | 1154 | if (answer != '\n') |
c5aa993b | 1155 | do |
c906108c | 1156 | { |
8731e58e | 1157 | ans2 = fgetc (stdin); |
c906108c SS |
1158 | clearerr (stdin); |
1159 | } | |
c5aa993b | 1160 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); |
c906108c SS |
1161 | |
1162 | if (answer >= 'a') | |
1163 | answer -= 040; | |
1164 | if (answer == 'Y') | |
1165 | { | |
1166 | retval = 1; | |
1167 | break; | |
1168 | } | |
1169 | if (answer == 'N') | |
1170 | { | |
1171 | retval = 0; | |
1172 | break; | |
1173 | } | |
1174 | printf_filtered ("Please answer y or n.\n"); | |
1175 | } | |
1176 | ||
1177 | if (annotation_level > 1) | |
1178 | printf_filtered ("\n\032\032post-query\n"); | |
1179 | return retval; | |
1180 | } | |
c906108c | 1181 | \f |
c5aa993b | 1182 | |
cbdeadca JJ |
1183 | /* This function supports the nquery() and yquery() functions. |
1184 | Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1185 | answer is yes, or default the answer to the specified default. | |
1186 | DEFCHAR is either 'y' or 'n' and refers to the default answer. | |
1187 | CTLSTR is the control string and should end in "? ". It should | |
1188 | not say how to answer, because we do that. | |
1189 | ARGS are the arguments passed along with the CTLSTR argument to | |
1190 | printf. */ | |
1191 | ||
1192 | static int | |
1193 | defaulted_query (const char *ctlstr, const char defchar, va_list args) | |
1194 | { | |
1195 | int answer; | |
1196 | int ans2; | |
1197 | int retval; | |
1198 | int def_value; | |
1199 | char def_answer, not_def_answer; | |
1200 | char *y_string, *n_string; | |
1201 | ||
1202 | /* Set up according to which answer is the default. */ | |
1203 | if (defchar == 'y') | |
1204 | { | |
1205 | def_value = 1; | |
1206 | def_answer = 'Y'; | |
1207 | not_def_answer = 'N'; | |
1208 | y_string = "[y]"; | |
1209 | n_string = "n"; | |
1210 | } | |
1211 | else | |
1212 | { | |
1213 | def_value = 0; | |
1214 | def_answer = 'N'; | |
1215 | not_def_answer = 'Y'; | |
1216 | y_string = "y"; | |
1217 | n_string = "[n]"; | |
1218 | } | |
1219 | ||
9a4105ab | 1220 | if (deprecated_query_hook) |
cbdeadca | 1221 | { |
9a4105ab | 1222 | return deprecated_query_hook (ctlstr, args); |
cbdeadca JJ |
1223 | } |
1224 | ||
1225 | /* Automatically answer default value if input is not from a terminal. */ | |
1226 | if (!input_from_terminal_p ()) | |
1227 | return def_value; | |
1228 | ||
1229 | while (1) | |
1230 | { | |
1231 | wrap_here (""); /* Flush any buffered output */ | |
1232 | gdb_flush (gdb_stdout); | |
1233 | ||
1234 | if (annotation_level > 1) | |
7b6be525 | 1235 | printf_filtered ("\n\032\032pre-query\n"); |
cbdeadca JJ |
1236 | |
1237 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1238 | printf_filtered ("(%s or %s) ", y_string, n_string); | |
1239 | ||
1240 | if (annotation_level > 1) | |
7b6be525 | 1241 | printf_filtered ("\n\032\032query\n"); |
cbdeadca JJ |
1242 | |
1243 | wrap_here (""); | |
1244 | gdb_flush (gdb_stdout); | |
1245 | ||
1246 | answer = fgetc (stdin); | |
1247 | clearerr (stdin); /* in case of C-d */ | |
1248 | if (answer == EOF) /* C-d */ | |
1249 | { | |
1250 | retval = def_value; | |
1251 | break; | |
1252 | } | |
1253 | /* Eat rest of input line, to EOF or newline */ | |
1254 | if (answer != '\n') | |
1255 | do | |
1256 | { | |
1257 | ans2 = fgetc (stdin); | |
1258 | clearerr (stdin); | |
1259 | } | |
1260 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); | |
1261 | ||
1262 | if (answer >= 'a') | |
1263 | answer -= 040; | |
1264 | /* Check answer. For the non-default, the user must specify | |
1265 | the non-default explicitly. */ | |
1266 | if (answer == not_def_answer) | |
1267 | { | |
1268 | retval = !def_value; | |
1269 | break; | |
1270 | } | |
1271 | /* Otherwise, for the default, the user may either specify | |
1272 | the required input or have it default by entering nothing. */ | |
1273 | if (answer == def_answer || answer == '\n' || | |
1274 | answer == '\r' || answer == EOF) | |
1275 | { | |
1276 | retval = def_value; | |
1277 | break; | |
1278 | } | |
1279 | /* Invalid entries are not defaulted and require another selection. */ | |
1280 | printf_filtered ("Please answer %s or %s.\n", | |
1281 | y_string, n_string); | |
1282 | } | |
1283 | ||
1284 | if (annotation_level > 1) | |
7b6be525 | 1285 | printf_filtered ("\n\032\032post-query\n"); |
cbdeadca JJ |
1286 | return retval; |
1287 | } | |
1288 | \f | |
1289 | ||
1290 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1291 | answer is yes, or 0 if answer is defaulted. | |
1292 | Takes three args which are given to printf to print the question. | |
1293 | The first, a control string, should end in "? ". | |
1294 | It should not say how to answer, because we do that. */ | |
1295 | ||
1296 | int | |
1297 | nquery (const char *ctlstr, ...) | |
1298 | { | |
1299 | va_list args; | |
1300 | ||
1301 | va_start (args, ctlstr); | |
1302 | return defaulted_query (ctlstr, 'n', args); | |
1303 | va_end (args); | |
1304 | } | |
1305 | ||
1306 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1307 | answer is yes, or 1 if answer is defaulted. | |
1308 | Takes three args which are given to printf to print the question. | |
1309 | The first, a control string, should end in "? ". | |
1310 | It should not say how to answer, because we do that. */ | |
1311 | ||
1312 | int | |
1313 | yquery (const char *ctlstr, ...) | |
1314 | { | |
1315 | va_list args; | |
1316 | ||
1317 | va_start (args, ctlstr); | |
1318 | return defaulted_query (ctlstr, 'y', args); | |
1319 | va_end (args); | |
1320 | } | |
1321 | ||
234b45d4 KB |
1322 | /* Print an error message saying that we couldn't make sense of a |
1323 | \^mumble sequence in a string or character constant. START and END | |
1324 | indicate a substring of some larger string that contains the | |
1325 | erroneous backslash sequence, missing the initial backslash. */ | |
1326 | static NORETURN int | |
1327 | no_control_char_error (const char *start, const char *end) | |
1328 | { | |
1329 | int len = end - start; | |
1330 | char *copy = alloca (end - start + 1); | |
1331 | ||
1332 | memcpy (copy, start, len); | |
1333 | copy[len] = '\0'; | |
1334 | ||
8a3fe4f8 | 1335 | error (_("There is no control character `\\%s' in the `%s' character set."), |
8731e58e | 1336 | copy, target_charset ()); |
234b45d4 KB |
1337 | } |
1338 | ||
c906108c SS |
1339 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1340 | containing a pointer to the string to parse. That pointer | |
1341 | should point to the character after the \. That pointer | |
1342 | is updated past the characters we use. The value of the | |
1343 | escape sequence is returned. | |
1344 | ||
1345 | A negative value means the sequence \ newline was seen, | |
1346 | which is supposed to be equivalent to nothing at all. | |
1347 | ||
1348 | If \ is followed by a null character, we return a negative | |
1349 | value and leave the string pointer pointing at the null character. | |
1350 | ||
1351 | If \ is followed by 000, we return 0 and leave the string pointer | |
1352 | after the zeros. A value of 0 does not mean end of string. */ | |
1353 | ||
1354 | int | |
fba45db2 | 1355 | parse_escape (char **string_ptr) |
c906108c | 1356 | { |
234b45d4 | 1357 | int target_char; |
52f0bd74 | 1358 | int c = *(*string_ptr)++; |
234b45d4 KB |
1359 | if (c_parse_backslash (c, &target_char)) |
1360 | return target_char; | |
8731e58e AC |
1361 | else |
1362 | switch (c) | |
234b45d4 | 1363 | { |
8731e58e AC |
1364 | case '\n': |
1365 | return -2; | |
1366 | case 0: | |
1367 | (*string_ptr)--; | |
1368 | return 0; | |
1369 | case '^': | |
1370 | { | |
1371 | /* Remember where this escape sequence started, for reporting | |
1372 | errors. */ | |
1373 | char *sequence_start_pos = *string_ptr - 1; | |
234b45d4 | 1374 | |
8731e58e AC |
1375 | c = *(*string_ptr)++; |
1376 | ||
1377 | if (c == '?') | |
1378 | { | |
1379 | /* XXXCHARSET: What is `delete' in the host character set? */ | |
1380 | c = 0177; | |
1381 | ||
1382 | if (!host_char_to_target (c, &target_char)) | |
8a3fe4f8 AC |
1383 | error (_("There is no character corresponding to `Delete' " |
1384 | "in the target character set `%s'."), host_charset ()); | |
8731e58e AC |
1385 | |
1386 | return target_char; | |
1387 | } | |
1388 | else if (c == '\\') | |
1389 | target_char = parse_escape (string_ptr); | |
1390 | else | |
1391 | { | |
1392 | if (!host_char_to_target (c, &target_char)) | |
1393 | no_control_char_error (sequence_start_pos, *string_ptr); | |
1394 | } | |
1395 | ||
1396 | /* Now target_char is something like `c', and we want to find | |
1397 | its control-character equivalent. */ | |
1398 | if (!target_char_to_control_char (target_char, &target_char)) | |
1399 | no_control_char_error (sequence_start_pos, *string_ptr); | |
1400 | ||
1401 | return target_char; | |
1402 | } | |
1403 | ||
1404 | /* XXXCHARSET: we need to use isdigit and value-of-digit | |
1405 | methods of the host character set here. */ | |
1406 | ||
1407 | case '0': | |
1408 | case '1': | |
1409 | case '2': | |
1410 | case '3': | |
1411 | case '4': | |
1412 | case '5': | |
1413 | case '6': | |
1414 | case '7': | |
1415 | { | |
aa1ee363 AC |
1416 | int i = c - '0'; |
1417 | int count = 0; | |
8731e58e AC |
1418 | while (++count < 3) |
1419 | { | |
5cb316ef AC |
1420 | c = (**string_ptr); |
1421 | if (c >= '0' && c <= '7') | |
8731e58e | 1422 | { |
5cb316ef | 1423 | (*string_ptr)++; |
8731e58e AC |
1424 | i *= 8; |
1425 | i += c - '0'; | |
1426 | } | |
1427 | else | |
1428 | { | |
8731e58e AC |
1429 | break; |
1430 | } | |
1431 | } | |
1432 | return i; | |
1433 | } | |
1434 | default: | |
1435 | if (!host_char_to_target (c, &target_char)) | |
1436 | error | |
1437 | ("The escape sequence `\%c' is equivalent to plain `%c', which" | |
1438 | " has no equivalent\n" "in the `%s' character set.", c, c, | |
1439 | target_charset ()); | |
1440 | return target_char; | |
c906108c | 1441 | } |
c906108c SS |
1442 | } |
1443 | \f | |
1444 | /* Print the character C on STREAM as part of the contents of a literal | |
1445 | string whose delimiter is QUOTER. Note that this routine should only | |
1446 | be call for printing things which are independent of the language | |
1447 | of the program being debugged. */ | |
1448 | ||
43e526b9 | 1449 | static void |
74f832da KB |
1450 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
1451 | void (*do_fprintf) (struct ui_file *, const char *, ...), | |
1452 | struct ui_file *stream, int quoter) | |
c906108c SS |
1453 | { |
1454 | ||
1455 | c &= 0xFF; /* Avoid sign bit follies */ | |
1456 | ||
c5aa993b JM |
1457 | if (c < 0x20 || /* Low control chars */ |
1458 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1459 | (sevenbit_strings && c >= 0x80)) | |
1460 | { /* high order bit set */ | |
1461 | switch (c) | |
1462 | { | |
1463 | case '\n': | |
43e526b9 | 1464 | do_fputs ("\\n", stream); |
c5aa993b JM |
1465 | break; |
1466 | case '\b': | |
43e526b9 | 1467 | do_fputs ("\\b", stream); |
c5aa993b JM |
1468 | break; |
1469 | case '\t': | |
43e526b9 | 1470 | do_fputs ("\\t", stream); |
c5aa993b JM |
1471 | break; |
1472 | case '\f': | |
43e526b9 | 1473 | do_fputs ("\\f", stream); |
c5aa993b JM |
1474 | break; |
1475 | case '\r': | |
43e526b9 | 1476 | do_fputs ("\\r", stream); |
c5aa993b JM |
1477 | break; |
1478 | case '\033': | |
43e526b9 | 1479 | do_fputs ("\\e", stream); |
c5aa993b JM |
1480 | break; |
1481 | case '\007': | |
43e526b9 | 1482 | do_fputs ("\\a", stream); |
c5aa993b JM |
1483 | break; |
1484 | default: | |
43e526b9 | 1485 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1486 | break; |
1487 | } | |
1488 | } | |
1489 | else | |
1490 | { | |
1491 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1492 | do_fputs ("\\", stream); |
1493 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1494 | } |
c906108c | 1495 | } |
43e526b9 JM |
1496 | |
1497 | /* Print the character C on STREAM as part of the contents of a | |
1498 | literal string whose delimiter is QUOTER. Note that these routines | |
1499 | should only be call for printing things which are independent of | |
1500 | the language of the program being debugged. */ | |
1501 | ||
1502 | void | |
fba45db2 | 1503 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1504 | { |
1505 | while (*str) | |
1506 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1507 | } | |
1508 | ||
1509 | void | |
fba45db2 | 1510 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1511 | { |
1512 | while (*str) | |
1513 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1514 | } | |
1515 | ||
1516 | void | |
8731e58e AC |
1517 | fputstrn_unfiltered (const char *str, int n, int quoter, |
1518 | struct ui_file *stream) | |
43e526b9 JM |
1519 | { |
1520 | int i; | |
1521 | for (i = 0; i < n; i++) | |
1522 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1523 | } | |
c906108c | 1524 | \f |
c5aa993b | 1525 | |
c906108c SS |
1526 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1527 | static unsigned int lines_per_page; | |
eb0d3137 | 1528 | |
cbfbd72a | 1529 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1530 | static unsigned int chars_per_line; |
eb0d3137 | 1531 | |
c906108c SS |
1532 | /* Current count of lines printed on this page, chars on this line. */ |
1533 | static unsigned int lines_printed, chars_printed; | |
1534 | ||
1535 | /* Buffer and start column of buffered text, for doing smarter word- | |
1536 | wrapping. When someone calls wrap_here(), we start buffering output | |
1537 | that comes through fputs_filtered(). If we see a newline, we just | |
1538 | spit it out and forget about the wrap_here(). If we see another | |
1539 | wrap_here(), we spit it out and remember the newer one. If we see | |
1540 | the end of the line, we spit out a newline, the indent, and then | |
1541 | the buffered output. */ | |
1542 | ||
1543 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1544 | are waiting to be output (they have already been counted in chars_printed). | |
1545 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1546 | static char *wrap_buffer; | |
1547 | ||
1548 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1549 | static char *wrap_pointer; | |
1550 | ||
1551 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1552 | is non-zero. */ | |
1553 | static char *wrap_indent; | |
1554 | ||
1555 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1556 | is not in effect. */ | |
1557 | static int wrap_column; | |
c906108c | 1558 | \f |
c5aa993b | 1559 | |
eb0d3137 MK |
1560 | /* Inialize the number of lines per page and chars per line. */ |
1561 | ||
c906108c | 1562 | void |
fba45db2 | 1563 | init_page_info (void) |
c906108c SS |
1564 | { |
1565 | #if defined(TUI) | |
5ecb1806 | 1566 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1567 | #endif |
1568 | { | |
eb0d3137 | 1569 | int rows, cols; |
c906108c | 1570 | |
ec145965 EZ |
1571 | #if defined(__GO32__) |
1572 | rows = ScreenRows (); | |
1573 | cols = ScreenCols (); | |
1574 | lines_per_page = rows; | |
1575 | chars_per_line = cols; | |
1576 | #else | |
eb0d3137 MK |
1577 | /* Make sure Readline has initialized its terminal settings. */ |
1578 | rl_reset_terminal (NULL); | |
c906108c | 1579 | |
eb0d3137 MK |
1580 | /* Get the screen size from Readline. */ |
1581 | rl_get_screen_size (&rows, &cols); | |
1582 | lines_per_page = rows; | |
1583 | chars_per_line = cols; | |
c906108c | 1584 | |
eb0d3137 MK |
1585 | /* Readline should have fetched the termcap entry for us. */ |
1586 | if (tgetnum ("li") < 0 || getenv ("EMACS")) | |
1587 | { | |
1588 | /* The number of lines per page is not mentioned in the | |
1589 | terminal description. This probably means that paging is | |
1590 | not useful (e.g. emacs shell window), so disable paging. */ | |
1591 | lines_per_page = UINT_MAX; | |
1592 | } | |
c906108c | 1593 | |
eb0d3137 | 1594 | /* FIXME: Get rid of this junk. */ |
c906108c | 1595 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) |
c906108c SS |
1596 | SIGWINCH_HANDLER (SIGWINCH); |
1597 | #endif | |
eb0d3137 | 1598 | |
c906108c | 1599 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1600 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1601 | lines_per_page = UINT_MAX; |
eb0d3137 | 1602 | #endif |
ec145965 | 1603 | } |
eb0d3137 MK |
1604 | |
1605 | set_screen_size (); | |
c5aa993b | 1606 | set_width (); |
c906108c SS |
1607 | } |
1608 | ||
eb0d3137 MK |
1609 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1610 | ||
1611 | static void | |
1612 | set_screen_size (void) | |
1613 | { | |
1614 | int rows = lines_per_page; | |
1615 | int cols = chars_per_line; | |
1616 | ||
1617 | if (rows <= 0) | |
1618 | rows = INT_MAX; | |
1619 | ||
1620 | if (cols <= 0) | |
1621 | rl_get_screen_size (NULL, &cols); | |
1622 | ||
1623 | /* Update Readline's idea of the terminal size. */ | |
1624 | rl_set_screen_size (rows, cols); | |
1625 | } | |
1626 | ||
1627 | /* Reinitialize WRAP_BUFFER according to the current value of | |
1628 | CHARS_PER_LINE. */ | |
1629 | ||
c906108c | 1630 | static void |
fba45db2 | 1631 | set_width (void) |
c906108c SS |
1632 | { |
1633 | if (chars_per_line == 0) | |
c5aa993b | 1634 | init_page_info (); |
c906108c SS |
1635 | |
1636 | if (!wrap_buffer) | |
1637 | { | |
1638 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1639 | wrap_buffer[0] = '\0'; | |
1640 | } | |
1641 | else | |
1642 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 1643 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
1644 | } |
1645 | ||
c5aa993b | 1646 | static void |
fba45db2 | 1647 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1648 | { |
eb0d3137 | 1649 | set_screen_size (); |
c906108c SS |
1650 | set_width (); |
1651 | } | |
1652 | ||
eb0d3137 MK |
1653 | static void |
1654 | set_height_command (char *args, int from_tty, struct cmd_list_element *c) | |
1655 | { | |
1656 | set_screen_size (); | |
1657 | } | |
1658 | ||
c906108c SS |
1659 | /* Wait, so the user can read what's on the screen. Prompt the user |
1660 | to continue by pressing RETURN. */ | |
1661 | ||
1662 | static void | |
fba45db2 | 1663 | prompt_for_continue (void) |
c906108c SS |
1664 | { |
1665 | char *ignore; | |
1666 | char cont_prompt[120]; | |
1667 | ||
1668 | if (annotation_level > 1) | |
1669 | printf_unfiltered ("\n\032\032pre-prompt-for-continue\n"); | |
1670 | ||
1671 | strcpy (cont_prompt, | |
1672 | "---Type <return> to continue, or q <return> to quit---"); | |
1673 | if (annotation_level > 1) | |
1674 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1675 | ||
1676 | /* We must do this *before* we call gdb_readline, else it will eventually | |
1677 | call us -- thinking that we're trying to print beyond the end of the | |
1678 | screen. */ | |
1679 | reinitialize_more_filter (); | |
1680 | ||
1681 | immediate_quit++; | |
1682 | /* On a real operating system, the user can quit with SIGINT. | |
1683 | But not on GO32. | |
1684 | ||
1685 | 'q' is provided on all systems so users don't have to change habits | |
1686 | from system to system, and because telling them what to do in | |
1687 | the prompt is more user-friendly than expecting them to think of | |
1688 | SIGINT. */ | |
1689 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
1690 | whereas control-C to gdb_readline will cause the user to get dumped | |
1691 | out to DOS. */ | |
b4f5539f | 1692 | ignore = gdb_readline_wrapper (cont_prompt); |
c906108c SS |
1693 | |
1694 | if (annotation_level > 1) | |
1695 | printf_unfiltered ("\n\032\032post-prompt-for-continue\n"); | |
1696 | ||
1697 | if (ignore) | |
1698 | { | |
1699 | char *p = ignore; | |
1700 | while (*p == ' ' || *p == '\t') | |
1701 | ++p; | |
1702 | if (p[0] == 'q') | |
362646f5 | 1703 | async_request_quit (0); |
b8c9b27d | 1704 | xfree (ignore); |
c906108c SS |
1705 | } |
1706 | immediate_quit--; | |
1707 | ||
1708 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1709 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1710 | reinitialize_more_filter (); | |
1711 | ||
1712 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ | |
1713 | } | |
1714 | ||
1715 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
1716 | ||
1717 | void | |
fba45db2 | 1718 | reinitialize_more_filter (void) |
c906108c SS |
1719 | { |
1720 | lines_printed = 0; | |
1721 | chars_printed = 0; | |
1722 | } | |
1723 | ||
1724 | /* Indicate that if the next sequence of characters overflows the line, | |
1725 | a newline should be inserted here rather than when it hits the end. | |
1726 | If INDENT is non-null, it is a string to be printed to indent the | |
1727 | wrapped part on the next line. INDENT must remain accessible until | |
1728 | the next call to wrap_here() or until a newline is printed through | |
1729 | fputs_filtered(). | |
1730 | ||
1731 | If the line is already overfull, we immediately print a newline and | |
1732 | the indentation, and disable further wrapping. | |
1733 | ||
1734 | If we don't know the width of lines, but we know the page height, | |
1735 | we must not wrap words, but should still keep track of newlines | |
1736 | that were explicitly printed. | |
1737 | ||
1738 | INDENT should not contain tabs, as that will mess up the char count | |
1739 | on the next line. FIXME. | |
1740 | ||
1741 | This routine is guaranteed to force out any output which has been | |
1742 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1743 | used to force out output from the wrap_buffer. */ | |
1744 | ||
1745 | void | |
fba45db2 | 1746 | wrap_here (char *indent) |
c906108c SS |
1747 | { |
1748 | /* This should have been allocated, but be paranoid anyway. */ | |
1749 | if (!wrap_buffer) | |
e2e0b3e5 | 1750 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
1751 | |
1752 | if (wrap_buffer[0]) | |
1753 | { | |
1754 | *wrap_pointer = '\0'; | |
1755 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1756 | } | |
1757 | wrap_pointer = wrap_buffer; | |
1758 | wrap_buffer[0] = '\0'; | |
c5aa993b | 1759 | if (chars_per_line == UINT_MAX) /* No line overflow checking */ |
c906108c SS |
1760 | { |
1761 | wrap_column = 0; | |
1762 | } | |
1763 | else if (chars_printed >= chars_per_line) | |
1764 | { | |
1765 | puts_filtered ("\n"); | |
1766 | if (indent != NULL) | |
1767 | puts_filtered (indent); | |
1768 | wrap_column = 0; | |
1769 | } | |
1770 | else | |
1771 | { | |
1772 | wrap_column = chars_printed; | |
1773 | if (indent == NULL) | |
1774 | wrap_indent = ""; | |
1775 | else | |
1776 | wrap_indent = indent; | |
1777 | } | |
1778 | } | |
1779 | ||
4a351cef AF |
1780 | /* Print input string to gdb_stdout, filtered, with wrap, |
1781 | arranging strings in columns of n chars. String can be | |
1782 | right or left justified in the column. Never prints | |
1783 | trailing spaces. String should never be longer than | |
1784 | width. FIXME: this could be useful for the EXAMINE | |
1785 | command, which currently doesn't tabulate very well */ | |
1786 | ||
1787 | void | |
1788 | puts_filtered_tabular (char *string, int width, int right) | |
1789 | { | |
1790 | int spaces = 0; | |
1791 | int stringlen; | |
1792 | char *spacebuf; | |
1793 | ||
1794 | gdb_assert (chars_per_line > 0); | |
1795 | if (chars_per_line == UINT_MAX) | |
1796 | { | |
1797 | fputs_filtered (string, gdb_stdout); | |
1798 | fputs_filtered ("\n", gdb_stdout); | |
1799 | return; | |
1800 | } | |
1801 | ||
1802 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
1803 | fputs_filtered ("\n", gdb_stdout); | |
1804 | ||
1805 | if (width >= chars_per_line) | |
1806 | width = chars_per_line - 1; | |
1807 | ||
1808 | stringlen = strlen (string); | |
1809 | ||
1810 | if (chars_printed > 0) | |
1811 | spaces = width - (chars_printed - 1) % width - 1; | |
1812 | if (right) | |
1813 | spaces += width - stringlen; | |
1814 | ||
1815 | spacebuf = alloca (spaces + 1); | |
1816 | spacebuf[spaces] = '\0'; | |
1817 | while (spaces--) | |
1818 | spacebuf[spaces] = ' '; | |
1819 | ||
1820 | fputs_filtered (spacebuf, gdb_stdout); | |
1821 | fputs_filtered (string, gdb_stdout); | |
1822 | } | |
1823 | ||
1824 | ||
c906108c SS |
1825 | /* Ensure that whatever gets printed next, using the filtered output |
1826 | commands, starts at the beginning of the line. I.E. if there is | |
1827 | any pending output for the current line, flush it and start a new | |
1828 | line. Otherwise do nothing. */ | |
1829 | ||
1830 | void | |
fba45db2 | 1831 | begin_line (void) |
c906108c SS |
1832 | { |
1833 | if (chars_printed > 0) | |
1834 | { | |
1835 | puts_filtered ("\n"); | |
1836 | } | |
1837 | } | |
1838 | ||
ac9a91a7 | 1839 | |
c906108c SS |
1840 | /* Like fputs but if FILTER is true, pause after every screenful. |
1841 | ||
1842 | Regardless of FILTER can wrap at points other than the final | |
1843 | character of a line. | |
1844 | ||
1845 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
1846 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
1847 | anything. | |
1848 | ||
1849 | Note that a longjmp to top level may occur in this routine (only if | |
1850 | FILTER is true) (since prompt_for_continue may do so) so this | |
1851 | routine should not be called when cleanups are not in place. */ | |
1852 | ||
1853 | static void | |
fba45db2 KB |
1854 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
1855 | int filter) | |
c906108c SS |
1856 | { |
1857 | const char *lineptr; | |
1858 | ||
1859 | if (linebuffer == 0) | |
1860 | return; | |
1861 | ||
1862 | /* Don't do any filtering if it is disabled. */ | |
7a292a7a | 1863 | if ((stream != gdb_stdout) || !pagination_enabled |
c5aa993b | 1864 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX)) |
c906108c SS |
1865 | { |
1866 | fputs_unfiltered (linebuffer, stream); | |
1867 | return; | |
1868 | } | |
1869 | ||
1870 | /* Go through and output each character. Show line extension | |
1871 | when this is necessary; prompt user for new page when this is | |
1872 | necessary. */ | |
c5aa993b | 1873 | |
c906108c SS |
1874 | lineptr = linebuffer; |
1875 | while (*lineptr) | |
1876 | { | |
1877 | /* Possible new page. */ | |
8731e58e | 1878 | if (filter && (lines_printed >= lines_per_page - 1)) |
c906108c SS |
1879 | prompt_for_continue (); |
1880 | ||
1881 | while (*lineptr && *lineptr != '\n') | |
1882 | { | |
1883 | /* Print a single line. */ | |
1884 | if (*lineptr == '\t') | |
1885 | { | |
1886 | if (wrap_column) | |
1887 | *wrap_pointer++ = '\t'; | |
1888 | else | |
1889 | fputc_unfiltered ('\t', stream); | |
1890 | /* Shifting right by 3 produces the number of tab stops | |
1891 | we have already passed, and then adding one and | |
c5aa993b | 1892 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
1893 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
1894 | lineptr++; | |
1895 | } | |
1896 | else | |
1897 | { | |
1898 | if (wrap_column) | |
1899 | *wrap_pointer++ = *lineptr; | |
1900 | else | |
c5aa993b | 1901 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
1902 | chars_printed++; |
1903 | lineptr++; | |
1904 | } | |
c5aa993b | 1905 | |
c906108c SS |
1906 | if (chars_printed >= chars_per_line) |
1907 | { | |
1908 | unsigned int save_chars = chars_printed; | |
1909 | ||
1910 | chars_printed = 0; | |
1911 | lines_printed++; | |
1912 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
1913 | if chars_per_line is right, we probably just overflowed |
1914 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
1915 | if (wrap_column) |
1916 | fputc_unfiltered ('\n', stream); | |
1917 | ||
1918 | /* Possible new page. */ | |
1919 | if (lines_printed >= lines_per_page - 1) | |
1920 | prompt_for_continue (); | |
1921 | ||
1922 | /* Now output indentation and wrapped string */ | |
1923 | if (wrap_column) | |
1924 | { | |
1925 | fputs_unfiltered (wrap_indent, stream); | |
8731e58e | 1926 | *wrap_pointer = '\0'; /* Null-terminate saved stuff */ |
c5aa993b | 1927 | fputs_unfiltered (wrap_buffer, stream); /* and eject it */ |
c906108c SS |
1928 | /* FIXME, this strlen is what prevents wrap_indent from |
1929 | containing tabs. However, if we recurse to print it | |
1930 | and count its chars, we risk trouble if wrap_indent is | |
1931 | longer than (the user settable) chars_per_line. | |
1932 | Note also that this can set chars_printed > chars_per_line | |
1933 | if we are printing a long string. */ | |
1934 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 1935 | + (save_chars - wrap_column); |
c906108c SS |
1936 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
1937 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
1938 | wrap_column = 0; /* And disable fancy wrap */ |
1939 | } | |
c906108c SS |
1940 | } |
1941 | } | |
1942 | ||
1943 | if (*lineptr == '\n') | |
1944 | { | |
1945 | chars_printed = 0; | |
c5aa993b | 1946 | wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */ |
c906108c SS |
1947 | lines_printed++; |
1948 | fputc_unfiltered ('\n', stream); | |
1949 | lineptr++; | |
1950 | } | |
1951 | } | |
1952 | } | |
1953 | ||
1954 | void | |
fba45db2 | 1955 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
1956 | { |
1957 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1958 | } | |
1959 | ||
1960 | int | |
fba45db2 | 1961 | putchar_unfiltered (int c) |
c906108c | 1962 | { |
11cf8741 | 1963 | char buf = c; |
d9fcf2fb | 1964 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
1965 | return c; |
1966 | } | |
1967 | ||
d1f4cff8 AC |
1968 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
1969 | May return nonlocally. */ | |
1970 | ||
1971 | int | |
1972 | putchar_filtered (int c) | |
1973 | { | |
1974 | return fputc_filtered (c, gdb_stdout); | |
1975 | } | |
1976 | ||
c906108c | 1977 | int |
fba45db2 | 1978 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 1979 | { |
11cf8741 | 1980 | char buf = c; |
d9fcf2fb | 1981 | ui_file_write (stream, &buf, 1); |
c906108c SS |
1982 | return c; |
1983 | } | |
1984 | ||
1985 | int | |
fba45db2 | 1986 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
1987 | { |
1988 | char buf[2]; | |
1989 | ||
1990 | buf[0] = c; | |
1991 | buf[1] = 0; | |
1992 | fputs_filtered (buf, stream); | |
1993 | return c; | |
1994 | } | |
1995 | ||
1996 | /* puts_debug is like fputs_unfiltered, except it prints special | |
1997 | characters in printable fashion. */ | |
1998 | ||
1999 | void | |
fba45db2 | 2000 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
2001 | { |
2002 | int ch; | |
2003 | ||
2004 | /* Print prefix and suffix after each line. */ | |
2005 | static int new_line = 1; | |
2006 | static int return_p = 0; | |
2007 | static char *prev_prefix = ""; | |
2008 | static char *prev_suffix = ""; | |
2009 | ||
2010 | if (*string == '\n') | |
2011 | return_p = 0; | |
2012 | ||
2013 | /* If the prefix is changing, print the previous suffix, a new line, | |
2014 | and the new prefix. */ | |
c5aa993b | 2015 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2016 | { |
9846de1b JM |
2017 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2018 | fputs_unfiltered ("\n", gdb_stdlog); | |
2019 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2020 | } |
2021 | ||
2022 | /* Print prefix if we printed a newline during the previous call. */ | |
2023 | if (new_line) | |
2024 | { | |
2025 | new_line = 0; | |
9846de1b | 2026 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2027 | } |
2028 | ||
2029 | prev_prefix = prefix; | |
2030 | prev_suffix = suffix; | |
2031 | ||
2032 | /* Output characters in a printable format. */ | |
2033 | while ((ch = *string++) != '\0') | |
2034 | { | |
2035 | switch (ch) | |
c5aa993b | 2036 | { |
c906108c SS |
2037 | default: |
2038 | if (isprint (ch)) | |
9846de1b | 2039 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2040 | |
2041 | else | |
9846de1b | 2042 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2043 | break; |
2044 | ||
c5aa993b JM |
2045 | case '\\': |
2046 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2047 | break; | |
2048 | case '\b': | |
2049 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2050 | break; | |
2051 | case '\f': | |
2052 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2053 | break; | |
2054 | case '\n': | |
2055 | new_line = 1; | |
2056 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2057 | break; | |
2058 | case '\r': | |
2059 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2060 | break; | |
2061 | case '\t': | |
2062 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2063 | break; | |
2064 | case '\v': | |
2065 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2066 | break; | |
2067 | } | |
c906108c SS |
2068 | |
2069 | return_p = ch == '\r'; | |
2070 | } | |
2071 | ||
2072 | /* Print suffix if we printed a newline. */ | |
2073 | if (new_line) | |
2074 | { | |
9846de1b JM |
2075 | fputs_unfiltered (suffix, gdb_stdlog); |
2076 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2077 | } |
2078 | } | |
2079 | ||
2080 | ||
2081 | /* Print a variable number of ARGS using format FORMAT. If this | |
2082 | information is going to put the amount written (since the last call | |
2083 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2084 | call prompt_for_continue to get the users permision to continue. | |
2085 | ||
2086 | Unlike fprintf, this function does not return a value. | |
2087 | ||
2088 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2089 | fprintf (takes a stream to write on), and printf (the usual). | |
2090 | ||
2091 | Note also that a longjmp to top level may occur in this routine | |
2092 | (since prompt_for_continue may do so) so this routine should not be | |
2093 | called when cleanups are not in place. */ | |
2094 | ||
2095 | static void | |
fba45db2 KB |
2096 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2097 | va_list args, int filter) | |
c906108c SS |
2098 | { |
2099 | char *linebuffer; | |
2100 | struct cleanup *old_cleanups; | |
2101 | ||
e623b504 | 2102 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2103 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2104 | fputs_maybe_filtered (linebuffer, stream, filter); |
2105 | do_cleanups (old_cleanups); | |
2106 | } | |
2107 | ||
2108 | ||
2109 | void | |
fba45db2 | 2110 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2111 | { |
2112 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2113 | } | |
2114 | ||
2115 | void | |
fba45db2 | 2116 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2117 | { |
2118 | char *linebuffer; | |
2119 | struct cleanup *old_cleanups; | |
2120 | ||
e623b504 | 2121 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2122 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2123 | fputs_unfiltered (linebuffer, stream); |
2124 | do_cleanups (old_cleanups); | |
2125 | } | |
2126 | ||
2127 | void | |
fba45db2 | 2128 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2129 | { |
2130 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2131 | } | |
2132 | ||
2133 | void | |
fba45db2 | 2134 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2135 | { |
2136 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2137 | } | |
2138 | ||
c906108c | 2139 | void |
8731e58e | 2140 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2141 | { |
2142 | va_list args; | |
c906108c | 2143 | va_start (args, format); |
c906108c SS |
2144 | vfprintf_filtered (stream, format, args); |
2145 | va_end (args); | |
2146 | } | |
2147 | ||
c906108c | 2148 | void |
8731e58e | 2149 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2150 | { |
2151 | va_list args; | |
c906108c | 2152 | va_start (args, format); |
c906108c SS |
2153 | vfprintf_unfiltered (stream, format, args); |
2154 | va_end (args); | |
2155 | } | |
2156 | ||
2157 | /* Like fprintf_filtered, but prints its result indented. | |
2158 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2159 | ||
c906108c | 2160 | void |
8731e58e AC |
2161 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2162 | ...) | |
c906108c SS |
2163 | { |
2164 | va_list args; | |
c906108c | 2165 | va_start (args, format); |
c906108c SS |
2166 | print_spaces_filtered (spaces, stream); |
2167 | ||
2168 | vfprintf_filtered (stream, format, args); | |
2169 | va_end (args); | |
2170 | } | |
2171 | ||
2172 | ||
c906108c | 2173 | void |
8731e58e | 2174 | printf_filtered (const char *format, ...) |
c906108c SS |
2175 | { |
2176 | va_list args; | |
c906108c | 2177 | va_start (args, format); |
c906108c SS |
2178 | vfprintf_filtered (gdb_stdout, format, args); |
2179 | va_end (args); | |
2180 | } | |
2181 | ||
2182 | ||
c906108c | 2183 | void |
8731e58e | 2184 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2185 | { |
2186 | va_list args; | |
c906108c | 2187 | va_start (args, format); |
c906108c SS |
2188 | vfprintf_unfiltered (gdb_stdout, format, args); |
2189 | va_end (args); | |
2190 | } | |
2191 | ||
2192 | /* Like printf_filtered, but prints it's result indented. | |
2193 | Called as printfi_filtered (spaces, format, ...); */ | |
2194 | ||
c906108c | 2195 | void |
8731e58e | 2196 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2197 | { |
2198 | va_list args; | |
c906108c | 2199 | va_start (args, format); |
c906108c SS |
2200 | print_spaces_filtered (spaces, gdb_stdout); |
2201 | vfprintf_filtered (gdb_stdout, format, args); | |
2202 | va_end (args); | |
2203 | } | |
2204 | ||
2205 | /* Easy -- but watch out! | |
2206 | ||
2207 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2208 | This one doesn't, and had better not! */ | |
2209 | ||
2210 | void | |
fba45db2 | 2211 | puts_filtered (const char *string) |
c906108c SS |
2212 | { |
2213 | fputs_filtered (string, gdb_stdout); | |
2214 | } | |
2215 | ||
2216 | void | |
fba45db2 | 2217 | puts_unfiltered (const char *string) |
c906108c SS |
2218 | { |
2219 | fputs_unfiltered (string, gdb_stdout); | |
2220 | } | |
2221 | ||
2222 | /* Return a pointer to N spaces and a null. The pointer is good | |
2223 | until the next call to here. */ | |
2224 | char * | |
fba45db2 | 2225 | n_spaces (int n) |
c906108c | 2226 | { |
392a587b JM |
2227 | char *t; |
2228 | static char *spaces = 0; | |
2229 | static int max_spaces = -1; | |
c906108c SS |
2230 | |
2231 | if (n > max_spaces) | |
2232 | { | |
2233 | if (spaces) | |
b8c9b27d | 2234 | xfree (spaces); |
c5aa993b JM |
2235 | spaces = (char *) xmalloc (n + 1); |
2236 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2237 | *--t = ' '; |
2238 | spaces[n] = '\0'; | |
2239 | max_spaces = n; | |
2240 | } | |
2241 | ||
2242 | return spaces + max_spaces - n; | |
2243 | } | |
2244 | ||
2245 | /* Print N spaces. */ | |
2246 | void | |
fba45db2 | 2247 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2248 | { |
2249 | fputs_filtered (n_spaces (n), stream); | |
2250 | } | |
2251 | \f | |
4a351cef | 2252 | /* C++/ObjC demangler stuff. */ |
c906108c | 2253 | |
389e51db AC |
2254 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2255 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2256 | If the name is not mangled, or the language for the name is unknown, or | |
2257 | demangling is off, the name is printed in its "raw" form. */ | |
c906108c SS |
2258 | |
2259 | void | |
8731e58e AC |
2260 | fprintf_symbol_filtered (struct ui_file *stream, char *name, |
2261 | enum language lang, int arg_mode) | |
c906108c SS |
2262 | { |
2263 | char *demangled; | |
2264 | ||
2265 | if (name != NULL) | |
2266 | { | |
2267 | /* If user wants to see raw output, no problem. */ | |
2268 | if (!demangle) | |
2269 | { | |
2270 | fputs_filtered (name, stream); | |
2271 | } | |
2272 | else | |
2273 | { | |
9a3d7dfd | 2274 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2275 | fputs_filtered (demangled ? demangled : name, stream); |
2276 | if (demangled != NULL) | |
2277 | { | |
b8c9b27d | 2278 | xfree (demangled); |
c906108c SS |
2279 | } |
2280 | } | |
2281 | } | |
2282 | } | |
2283 | ||
2284 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2285 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2286 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2287 | |
c906108c SS |
2288 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2289 | This "feature" is useful when searching for matching C++ function names | |
2290 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
2291 | function). */ | |
2292 | ||
2293 | int | |
fba45db2 | 2294 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2295 | { |
2296 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2297 | { | |
2298 | while (isspace (*string1)) | |
2299 | { | |
2300 | string1++; | |
2301 | } | |
2302 | while (isspace (*string2)) | |
2303 | { | |
2304 | string2++; | |
2305 | } | |
2306 | if (*string1 != *string2) | |
2307 | { | |
2308 | break; | |
2309 | } | |
2310 | if (*string1 != '\0') | |
2311 | { | |
2312 | string1++; | |
2313 | string2++; | |
2314 | } | |
2315 | } | |
2316 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2317 | } | |
2de7ced7 | 2318 | |
0fe19209 DC |
2319 | /* This is like strcmp except that it ignores whitespace and treats |
2320 | '(' as the first non-NULL character in terms of ordering. Like | |
2321 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2322 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2323 | according to that ordering. | |
2324 | ||
2325 | If a list is sorted according to this function and if you want to | |
2326 | find names in the list that match some fixed NAME according to | |
2327 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2328 | where this function would put NAME. | |
2329 | ||
2330 | Here are some examples of why using strcmp to sort is a bad idea: | |
2331 | ||
2332 | Whitespace example: | |
2333 | ||
2334 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2335 | we try to do a search for "foo<char*>", strcmp will locate this | |
2336 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2337 | will start looking at strings beginning with "goo", and will never | |
2338 | see the correct match of "foo<char *>". | |
2339 | ||
2340 | Parenthesis example: | |
2341 | ||
2342 | In practice, this is less like to be an issue, but I'll give it a | |
2343 | shot. Let's assume that '$' is a legitimate character to occur in | |
2344 | symbols. (Which may well even be the case on some systems.) Then | |
2345 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2346 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2347 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2348 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2349 | "foo") is false, so it won't proceed to the actual match of | |
2350 | "foo(int)" with "foo". */ | |
2351 | ||
2352 | int | |
2353 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2354 | { | |
2355 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2356 | { | |
2357 | while (isspace (*string1)) | |
2358 | { | |
2359 | string1++; | |
2360 | } | |
2361 | while (isspace (*string2)) | |
2362 | { | |
2363 | string2++; | |
2364 | } | |
2365 | if (*string1 != *string2) | |
2366 | { | |
2367 | break; | |
2368 | } | |
2369 | if (*string1 != '\0') | |
2370 | { | |
2371 | string1++; | |
2372 | string2++; | |
2373 | } | |
2374 | } | |
2375 | ||
2376 | switch (*string1) | |
2377 | { | |
2378 | /* Characters are non-equal unless they're both '\0'; we want to | |
2379 | make sure we get the comparison right according to our | |
2380 | comparison in the cases where one of them is '\0' or '('. */ | |
2381 | case '\0': | |
2382 | if (*string2 == '\0') | |
2383 | return 0; | |
2384 | else | |
2385 | return -1; | |
2386 | case '(': | |
2387 | if (*string2 == '\0') | |
2388 | return 1; | |
2389 | else | |
2390 | return -1; | |
2391 | default: | |
2392 | if (*string2 == '(') | |
2393 | return 1; | |
2394 | else | |
2395 | return *string1 - *string2; | |
2396 | } | |
2397 | } | |
2398 | ||
2de7ced7 DJ |
2399 | /* A simple comparison function with opposite semantics to strcmp. */ |
2400 | ||
2401 | int | |
2402 | streq (const char *lhs, const char *rhs) | |
2403 | { | |
2404 | return !strcmp (lhs, rhs); | |
2405 | } | |
c906108c | 2406 | \f |
c5aa993b | 2407 | |
c906108c | 2408 | /* |
c5aa993b JM |
2409 | ** subset_compare() |
2410 | ** Answer whether string_to_compare is a full or partial match to | |
2411 | ** template_string. The partial match must be in sequence starting | |
2412 | ** at index 0. | |
2413 | */ | |
c906108c | 2414 | int |
fba45db2 | 2415 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
2416 | { |
2417 | int match; | |
8731e58e AC |
2418 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
2419 | && strlen (string_to_compare) <= strlen (template_string)) | |
2420 | match = | |
2421 | (strncmp | |
2422 | (template_string, string_to_compare, strlen (string_to_compare)) == 0); | |
7a292a7a SS |
2423 | else |
2424 | match = 0; | |
2425 | return match; | |
2426 | } | |
c906108c SS |
2427 | |
2428 | ||
a14ed312 | 2429 | static void pagination_on_command (char *arg, int from_tty); |
7a292a7a | 2430 | static void |
fba45db2 | 2431 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
2432 | { |
2433 | pagination_enabled = 1; | |
2434 | } | |
2435 | ||
a14ed312 | 2436 | static void pagination_on_command (char *arg, int from_tty); |
7a292a7a | 2437 | static void |
fba45db2 | 2438 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
2439 | { |
2440 | pagination_enabled = 0; | |
2441 | } | |
c906108c | 2442 | \f |
c5aa993b | 2443 | |
c906108c | 2444 | void |
fba45db2 | 2445 | initialize_utils (void) |
c906108c SS |
2446 | { |
2447 | struct cmd_list_element *c; | |
2448 | ||
eb0d3137 | 2449 | c = add_set_cmd ("width", class_support, var_uinteger, &chars_per_line, |
c5aa993b JM |
2450 | "Set number of characters gdb thinks are in a line.", |
2451 | &setlist); | |
cb1a6d5f | 2452 | deprecated_add_show_from_set (c, &showlist); |
9f60d481 | 2453 | set_cmd_sfunc (c, set_width_command); |
c906108c | 2454 | |
eb0d3137 MK |
2455 | c = add_set_cmd ("height", class_support, var_uinteger, &lines_per_page, |
2456 | "Set number of lines gdb thinks are in a page.", &setlist); | |
cb1a6d5f | 2457 | deprecated_add_show_from_set (c, &showlist); |
eb0d3137 | 2458 | set_cmd_sfunc (c, set_height_command); |
c5aa993b | 2459 | |
c906108c SS |
2460 | init_page_info (); |
2461 | ||
cb1a6d5f | 2462 | deprecated_add_show_from_set |
c5aa993b JM |
2463 | (add_set_cmd ("demangle", class_support, var_boolean, |
2464 | (char *) &demangle, | |
8731e58e AC |
2465 | "Set demangling of encoded C++/ObjC names when displaying symbols.", |
2466 | &setprintlist), &showprintlist); | |
c906108c | 2467 | |
cb1a6d5f | 2468 | deprecated_add_show_from_set |
c906108c | 2469 | (add_set_cmd ("pagination", class_support, |
c5aa993b | 2470 | var_boolean, (char *) &pagination_enabled, |
8731e58e | 2471 | "Set state of pagination.", &setlist), &showlist); |
4261bedc | 2472 | |
c906108c SS |
2473 | if (xdb_commands) |
2474 | { | |
c5aa993b JM |
2475 | add_com ("am", class_support, pagination_on_command, |
2476 | "Enable pagination"); | |
2477 | add_com ("sm", class_support, pagination_off_command, | |
2478 | "Disable pagination"); | |
c906108c SS |
2479 | } |
2480 | ||
cb1a6d5f | 2481 | deprecated_add_show_from_set |
c5aa993b JM |
2482 | (add_set_cmd ("sevenbit-strings", class_support, var_boolean, |
2483 | (char *) &sevenbit_strings, | |
2484 | "Set printing of 8-bit characters in strings as \\nnn.", | |
8731e58e | 2485 | &setprintlist), &showprintlist); |
c906108c | 2486 | |
cb1a6d5f | 2487 | deprecated_add_show_from_set |
c5aa993b JM |
2488 | (add_set_cmd ("asm-demangle", class_support, var_boolean, |
2489 | (char *) &asm_demangle, | |
4a351cef | 2490 | "Set demangling of C++/ObjC names in disassembly listings.", |
8731e58e | 2491 | &setprintlist), &showprintlist); |
c906108c SS |
2492 | } |
2493 | ||
2494 | /* Machine specific function to handle SIGWINCH signal. */ | |
2495 | ||
2496 | #ifdef SIGWINCH_HANDLER_BODY | |
c5aa993b | 2497 | SIGWINCH_HANDLER_BODY |
c906108c | 2498 | #endif |
5683e87a | 2499 | /* print routines to handle variable size regs, etc. */ |
c906108c SS |
2500 | /* temporary storage using circular buffer */ |
2501 | #define NUMCELLS 16 | |
0759e0bf | 2502 | #define CELLSIZE 50 |
c5aa993b | 2503 | static char * |
fba45db2 | 2504 | get_cell (void) |
c906108c SS |
2505 | { |
2506 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b JM |
2507 | static int cell = 0; |
2508 | if (++cell >= NUMCELLS) | |
2509 | cell = 0; | |
c906108c SS |
2510 | return buf[cell]; |
2511 | } | |
2512 | ||
d4f3574e SS |
2513 | int |
2514 | strlen_paddr (void) | |
2515 | { | |
79496e2f | 2516 | return (TARGET_ADDR_BIT / 8 * 2); |
d4f3574e SS |
2517 | } |
2518 | ||
c5aa993b | 2519 | char * |
104c1213 | 2520 | paddr (CORE_ADDR addr) |
c906108c | 2521 | { |
79496e2f | 2522 | return phex (addr, TARGET_ADDR_BIT / 8); |
c906108c SS |
2523 | } |
2524 | ||
c5aa993b | 2525 | char * |
104c1213 | 2526 | paddr_nz (CORE_ADDR addr) |
c906108c | 2527 | { |
79496e2f | 2528 | return phex_nz (addr, TARGET_ADDR_BIT / 8); |
c906108c SS |
2529 | } |
2530 | ||
104c1213 | 2531 | static void |
bb599908 | 2532 | decimal2str (char *paddr_str, char *sign, ULONGEST addr, int width) |
104c1213 JM |
2533 | { |
2534 | /* steal code from valprint.c:print_decimal(). Should this worry | |
2535 | about the real size of addr as the above does? */ | |
2536 | unsigned long temp[3]; | |
2537 | int i = 0; | |
2538 | do | |
2539 | { | |
2540 | temp[i] = addr % (1000 * 1000 * 1000); | |
2541 | addr /= (1000 * 1000 * 1000); | |
2542 | i++; | |
bb599908 | 2543 | width -= 9; |
104c1213 JM |
2544 | } |
2545 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
bb599908 PH |
2546 | width += 9; |
2547 | if (width < 0) | |
2548 | width = 0; | |
104c1213 JM |
2549 | switch (i) |
2550 | { | |
2551 | case 1: | |
bb599908 | 2552 | sprintf (paddr_str, "%s%0*lu", sign, width, temp[0]); |
104c1213 JM |
2553 | break; |
2554 | case 2: | |
bb599908 | 2555 | sprintf (paddr_str, "%s%0*lu%09lu", sign, width, temp[1], temp[0]); |
104c1213 JM |
2556 | break; |
2557 | case 3: | |
bb599908 PH |
2558 | sprintf (paddr_str, "%s%0*lu%09lu%09lu", sign, width, |
2559 | temp[2], temp[1], temp[0]); | |
2560 | break; | |
2561 | default: | |
2562 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2563 | _("failed internal consistency check")); |
bb599908 PH |
2564 | } |
2565 | } | |
2566 | ||
2567 | static void | |
2568 | octal2str (char *paddr_str, ULONGEST addr, int width) | |
2569 | { | |
2570 | unsigned long temp[3]; | |
2571 | int i = 0; | |
2572 | do | |
2573 | { | |
2574 | temp[i] = addr % (0100000 * 0100000); | |
2575 | addr /= (0100000 * 0100000); | |
2576 | i++; | |
2577 | width -= 10; | |
2578 | } | |
2579 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
2580 | width += 10; | |
2581 | if (width < 0) | |
2582 | width = 0; | |
2583 | switch (i) | |
2584 | { | |
2585 | case 1: | |
2586 | if (temp[0] == 0) | |
2587 | sprintf (paddr_str, "%*o", width, 0); | |
2588 | else | |
2589 | sprintf (paddr_str, "0%0*lo", width, temp[0]); | |
2590 | break; | |
2591 | case 2: | |
2592 | sprintf (paddr_str, "0%0*lo%010lo", width, temp[1], temp[0]); | |
2593 | break; | |
2594 | case 3: | |
2595 | sprintf (paddr_str, "0%0*lo%010lo%010lo", width, | |
2596 | temp[2], temp[1], temp[0]); | |
104c1213 JM |
2597 | break; |
2598 | default: | |
8731e58e | 2599 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 2600 | _("failed internal consistency check")); |
104c1213 JM |
2601 | } |
2602 | } | |
2603 | ||
2604 | char * | |
2605 | paddr_u (CORE_ADDR addr) | |
2606 | { | |
2607 | char *paddr_str = get_cell (); | |
bb599908 | 2608 | decimal2str (paddr_str, "", addr, 0); |
104c1213 JM |
2609 | return paddr_str; |
2610 | } | |
2611 | ||
2612 | char * | |
2613 | paddr_d (LONGEST addr) | |
2614 | { | |
2615 | char *paddr_str = get_cell (); | |
2616 | if (addr < 0) | |
bb599908 | 2617 | decimal2str (paddr_str, "-", -addr, 0); |
104c1213 | 2618 | else |
bb599908 | 2619 | decimal2str (paddr_str, "", addr, 0); |
104c1213 JM |
2620 | return paddr_str; |
2621 | } | |
2622 | ||
5683e87a AC |
2623 | /* eliminate warning from compiler on 32-bit systems */ |
2624 | static int thirty_two = 32; | |
2625 | ||
104c1213 | 2626 | char * |
5683e87a | 2627 | phex (ULONGEST l, int sizeof_l) |
104c1213 | 2628 | { |
45a1e866 | 2629 | char *str; |
5683e87a | 2630 | switch (sizeof_l) |
104c1213 JM |
2631 | { |
2632 | case 8: | |
45a1e866 | 2633 | str = get_cell (); |
5683e87a AC |
2634 | sprintf (str, "%08lx%08lx", |
2635 | (unsigned long) (l >> thirty_two), | |
2636 | (unsigned long) (l & 0xffffffff)); | |
104c1213 JM |
2637 | break; |
2638 | case 4: | |
45a1e866 | 2639 | str = get_cell (); |
5683e87a | 2640 | sprintf (str, "%08lx", (unsigned long) l); |
104c1213 JM |
2641 | break; |
2642 | case 2: | |
45a1e866 | 2643 | str = get_cell (); |
5683e87a | 2644 | sprintf (str, "%04x", (unsigned short) (l & 0xffff)); |
104c1213 JM |
2645 | break; |
2646 | default: | |
45a1e866 | 2647 | str = phex (l, sizeof (l)); |
5683e87a | 2648 | break; |
104c1213 | 2649 | } |
5683e87a | 2650 | return str; |
104c1213 JM |
2651 | } |
2652 | ||
c5aa993b | 2653 | char * |
5683e87a | 2654 | phex_nz (ULONGEST l, int sizeof_l) |
c906108c | 2655 | { |
faf833ca | 2656 | char *str; |
5683e87a | 2657 | switch (sizeof_l) |
c906108c | 2658 | { |
c5aa993b JM |
2659 | case 8: |
2660 | { | |
5683e87a | 2661 | unsigned long high = (unsigned long) (l >> thirty_two); |
faf833ca | 2662 | str = get_cell (); |
c5aa993b | 2663 | if (high == 0) |
5683e87a | 2664 | sprintf (str, "%lx", (unsigned long) (l & 0xffffffff)); |
c5aa993b | 2665 | else |
8731e58e | 2666 | sprintf (str, "%lx%08lx", high, (unsigned long) (l & 0xffffffff)); |
c906108c | 2667 | break; |
c5aa993b JM |
2668 | } |
2669 | case 4: | |
faf833ca | 2670 | str = get_cell (); |
5683e87a | 2671 | sprintf (str, "%lx", (unsigned long) l); |
c5aa993b JM |
2672 | break; |
2673 | case 2: | |
faf833ca | 2674 | str = get_cell (); |
5683e87a | 2675 | sprintf (str, "%x", (unsigned short) (l & 0xffff)); |
c5aa993b JM |
2676 | break; |
2677 | default: | |
faf833ca | 2678 | str = phex_nz (l, sizeof (l)); |
5683e87a | 2679 | break; |
c906108c | 2680 | } |
5683e87a | 2681 | return str; |
c906108c | 2682 | } |
ac2e2ef7 | 2683 | |
0759e0bf AC |
2684 | /* Converts a LONGEST to a C-format hexadecimal literal and stores it |
2685 | in a static string. Returns a pointer to this string. */ | |
2686 | char * | |
2687 | hex_string (LONGEST num) | |
2688 | { | |
2689 | char *result = get_cell (); | |
2690 | snprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num))); | |
2691 | return result; | |
2692 | } | |
2693 | ||
2694 | /* Converts a LONGEST number to a C-format hexadecimal literal and | |
2695 | stores it in a static string. Returns a pointer to this string | |
2696 | that is valid until the next call. The number is padded on the | |
2697 | left with 0s to at least WIDTH characters. */ | |
2698 | char * | |
2699 | hex_string_custom (LONGEST num, int width) | |
2700 | { | |
2701 | char *result = get_cell (); | |
2702 | char *result_end = result + CELLSIZE - 1; | |
2703 | const char *hex = phex_nz (num, sizeof (num)); | |
2704 | int hex_len = strlen (hex); | |
2705 | ||
2706 | if (hex_len > width) | |
2707 | width = hex_len; | |
2708 | if (width + 2 >= CELLSIZE) | |
2709 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2710 | _("hex_string_custom: insufficient space to store result")); |
0759e0bf AC |
2711 | |
2712 | strcpy (result_end - width - 2, "0x"); | |
2713 | memset (result_end - width, '0', width); | |
2714 | strcpy (result_end - hex_len, hex); | |
2715 | return result_end - width - 2; | |
2716 | } | |
ac2e2ef7 | 2717 | |
bb599908 PH |
2718 | /* Convert VAL to a numeral in the given radix. For |
2719 | * radix 10, IS_SIGNED may be true, indicating a signed quantity; | |
2720 | * otherwise VAL is interpreted as unsigned. If WIDTH is supplied, | |
2721 | * it is the minimum width (0-padded if needed). USE_C_FORMAT means | |
2722 | * to use C format in all cases. If it is false, then 'x' | |
2723 | * and 'o' formats do not include a prefix (0x or leading 0). */ | |
2724 | ||
2725 | char * | |
2726 | int_string (LONGEST val, int radix, int is_signed, int width, | |
2727 | int use_c_format) | |
2728 | { | |
2729 | switch (radix) | |
2730 | { | |
2731 | case 16: | |
2732 | { | |
2733 | char *result; | |
2734 | if (width == 0) | |
2735 | result = hex_string (val); | |
2736 | else | |
2737 | result = hex_string_custom (val, width); | |
2738 | if (! use_c_format) | |
2739 | result += 2; | |
2740 | return result; | |
2741 | } | |
2742 | case 10: | |
2743 | { | |
2744 | char *result = get_cell (); | |
2745 | if (is_signed && val < 0) | |
2746 | decimal2str (result, "-", -val, width); | |
2747 | else | |
2748 | decimal2str (result, "", val, width); | |
2749 | return result; | |
2750 | } | |
2751 | case 8: | |
2752 | { | |
2753 | char *result = get_cell (); | |
2754 | octal2str (result, val, width); | |
2755 | if (use_c_format || val == 0) | |
2756 | return result; | |
2757 | else | |
2758 | return result + 1; | |
2759 | } | |
2760 | default: | |
2761 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2762 | _("failed internal consistency check")); |
bb599908 PH |
2763 | } |
2764 | } | |
2765 | ||
03dd37c3 AC |
2766 | /* Convert a CORE_ADDR into a string. */ |
2767 | const char * | |
2768 | core_addr_to_string (const CORE_ADDR addr) | |
49b563f9 KS |
2769 | { |
2770 | char *str = get_cell (); | |
2771 | strcpy (str, "0x"); | |
2772 | strcat (str, phex (addr, sizeof (addr))); | |
2773 | return str; | |
2774 | } | |
2775 | ||
2776 | const char * | |
2777 | core_addr_to_string_nz (const CORE_ADDR addr) | |
03dd37c3 AC |
2778 | { |
2779 | char *str = get_cell (); | |
2780 | strcpy (str, "0x"); | |
2781 | strcat (str, phex_nz (addr, sizeof (addr))); | |
2782 | return str; | |
2783 | } | |
2784 | ||
2785 | /* Convert a string back into a CORE_ADDR. */ | |
2786 | CORE_ADDR | |
2787 | string_to_core_addr (const char *my_string) | |
2788 | { | |
2789 | CORE_ADDR addr = 0; | |
2790 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') | |
2791 | { | |
2792 | /* Assume that it is in decimal. */ | |
2793 | int i; | |
2794 | for (i = 2; my_string[i] != '\0'; i++) | |
2795 | { | |
2796 | if (isdigit (my_string[i])) | |
2797 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 2798 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
2799 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
2800 | else | |
e2e0b3e5 | 2801 | internal_error (__FILE__, __LINE__, _("invalid hex")); |
03dd37c3 AC |
2802 | } |
2803 | } | |
2804 | else | |
2805 | { | |
2806 | /* Assume that it is in decimal. */ | |
2807 | int i; | |
2808 | for (i = 0; my_string[i] != '\0'; i++) | |
2809 | { | |
2810 | if (isdigit (my_string[i])) | |
2811 | addr = (my_string[i] - '0') + (addr * 10); | |
2812 | else | |
e2e0b3e5 | 2813 | internal_error (__FILE__, __LINE__, _("invalid decimal")); |
03dd37c3 AC |
2814 | } |
2815 | } | |
2816 | return addr; | |
2817 | } | |
58d370e0 TT |
2818 | |
2819 | char * | |
2820 | gdb_realpath (const char *filename) | |
2821 | { | |
70d35819 AC |
2822 | /* Method 1: The system has a compile time upper bound on a filename |
2823 | path. Use that and realpath() to canonicalize the name. This is | |
2824 | the most common case. Note that, if there isn't a compile time | |
2825 | upper bound, you want to avoid realpath() at all costs. */ | |
a4db0f07 | 2826 | #if defined(HAVE_REALPATH) |
70d35819 | 2827 | { |
a4db0f07 | 2828 | # if defined (PATH_MAX) |
70d35819 | 2829 | char buf[PATH_MAX]; |
a4db0f07 RH |
2830 | # define USE_REALPATH |
2831 | # elif defined (MAXPATHLEN) | |
70d35819 | 2832 | char buf[MAXPATHLEN]; |
a4db0f07 RH |
2833 | # define USE_REALPATH |
2834 | # endif | |
70d35819 | 2835 | # if defined (USE_REALPATH) |
82c0260e | 2836 | const char *rp = realpath (filename, buf); |
70d35819 AC |
2837 | if (rp == NULL) |
2838 | rp = filename; | |
2839 | return xstrdup (rp); | |
70d35819 | 2840 | # endif |
6f88d630 | 2841 | } |
a4db0f07 RH |
2842 | #endif /* HAVE_REALPATH */ |
2843 | ||
70d35819 AC |
2844 | /* Method 2: The host system (i.e., GNU) has the function |
2845 | canonicalize_file_name() which malloc's a chunk of memory and | |
2846 | returns that, use that. */ | |
2847 | #if defined(HAVE_CANONICALIZE_FILE_NAME) | |
2848 | { | |
2849 | char *rp = canonicalize_file_name (filename); | |
2850 | if (rp == NULL) | |
2851 | return xstrdup (filename); | |
2852 | else | |
2853 | return rp; | |
2854 | } | |
58d370e0 | 2855 | #endif |
70d35819 | 2856 | |
6411e720 AC |
2857 | /* FIXME: cagney/2002-11-13: |
2858 | ||
2859 | Method 2a: Use realpath() with a NULL buffer. Some systems, due | |
2860 | to the problems described in in method 3, have modified their | |
2861 | realpath() implementation so that it will allocate a buffer when | |
2862 | NULL is passed in. Before this can be used, though, some sort of | |
2863 | configure time test would need to be added. Otherwize the code | |
2864 | will likely core dump. */ | |
2865 | ||
70d35819 AC |
2866 | /* Method 3: Now we're getting desperate! The system doesn't have a |
2867 | compile time buffer size and no alternative function. Query the | |
2868 | OS, using pathconf(), for the buffer limit. Care is needed | |
2869 | though, some systems do not limit PATH_MAX (return -1 for | |
2870 | pathconf()) making it impossible to pass a correctly sized buffer | |
2871 | to realpath() (it could always overflow). On those systems, we | |
2872 | skip this. */ | |
2873 | #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA) | |
2874 | { | |
2875 | /* Find out the max path size. */ | |
2876 | long path_max = pathconf ("/", _PC_PATH_MAX); | |
2877 | if (path_max > 0) | |
2878 | { | |
2879 | /* PATH_MAX is bounded. */ | |
2880 | char *buf = alloca (path_max); | |
2881 | char *rp = realpath (filename, buf); | |
2882 | return xstrdup (rp ? rp : filename); | |
2883 | } | |
2884 | } | |
2885 | #endif | |
2886 | ||
2887 | /* This system is a lost cause, just dup the buffer. */ | |
2888 | return xstrdup (filename); | |
58d370e0 | 2889 | } |
303c8ebd JB |
2890 | |
2891 | /* Return a copy of FILENAME, with its directory prefix canonicalized | |
2892 | by gdb_realpath. */ | |
2893 | ||
2894 | char * | |
2895 | xfullpath (const char *filename) | |
2896 | { | |
2897 | const char *base_name = lbasename (filename); | |
2898 | char *dir_name; | |
2899 | char *real_path; | |
2900 | char *result; | |
2901 | ||
2902 | /* Extract the basename of filename, and return immediately | |
2903 | a copy of filename if it does not contain any directory prefix. */ | |
2904 | if (base_name == filename) | |
2905 | return xstrdup (filename); | |
2906 | ||
2907 | dir_name = alloca ((size_t) (base_name - filename + 2)); | |
2908 | /* Allocate enough space to store the dir_name + plus one extra | |
2909 | character sometimes needed under Windows (see below), and | |
2910 | then the closing \000 character */ | |
2911 | strncpy (dir_name, filename, base_name - filename); | |
2912 | dir_name[base_name - filename] = '\000'; | |
2913 | ||
2914 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
2915 | /* We need to be careful when filename is of the form 'd:foo', which | |
2916 | is equivalent of d:./foo, which is totally different from d:/foo. */ | |
8731e58e | 2917 | if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':') |
303c8ebd JB |
2918 | { |
2919 | dir_name[2] = '.'; | |
2920 | dir_name[3] = '\000'; | |
2921 | } | |
2922 | #endif | |
2923 | ||
2924 | /* Canonicalize the directory prefix, and build the resulting | |
2925 | filename. If the dirname realpath already contains an ending | |
2926 | directory separator, avoid doubling it. */ | |
2927 | real_path = gdb_realpath (dir_name); | |
2928 | if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1])) | |
2929 | result = concat (real_path, base_name, NULL); | |
2930 | else | |
2931 | result = concat (real_path, SLASH_STRING, base_name, NULL); | |
2932 | ||
2933 | xfree (real_path); | |
2934 | return result; | |
2935 | } | |
5b5d99cf JB |
2936 | |
2937 | ||
2938 | /* This is the 32-bit CRC function used by the GNU separate debug | |
2939 | facility. An executable may contain a section named | |
2940 | .gnu_debuglink, which holds the name of a separate executable file | |
2941 | containing its debug info, and a checksum of that file's contents, | |
2942 | computed using this function. */ | |
2943 | unsigned long | |
2944 | gnu_debuglink_crc32 (unsigned long crc, unsigned char *buf, size_t len) | |
2945 | { | |
8731e58e AC |
2946 | static const unsigned long crc32_table[256] = { |
2947 | 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, | |
2948 | 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, | |
2949 | 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, | |
2950 | 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, | |
2951 | 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, | |
2952 | 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, | |
2953 | 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, | |
2954 | 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, | |
2955 | 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, | |
2956 | 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, | |
2957 | 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, | |
2958 | 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, | |
2959 | 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, | |
2960 | 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, | |
2961 | 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, | |
2962 | 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, | |
2963 | 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, | |
2964 | 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, | |
2965 | 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, | |
2966 | 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, | |
2967 | 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, | |
2968 | 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, | |
2969 | 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, | |
2970 | 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, | |
2971 | 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, | |
2972 | 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, | |
2973 | 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, | |
2974 | 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, | |
2975 | 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, | |
2976 | 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, | |
2977 | 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, | |
2978 | 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, | |
2979 | 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, | |
2980 | 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, | |
2981 | 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, | |
2982 | 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, | |
2983 | 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, | |
2984 | 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, | |
2985 | 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, | |
2986 | 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, | |
2987 | 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, | |
2988 | 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, | |
2989 | 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, | |
2990 | 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, | |
2991 | 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, | |
2992 | 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, | |
2993 | 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, | |
2994 | 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, | |
2995 | 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, | |
2996 | 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, | |
2997 | 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, | |
2998 | 0x2d02ef8d | |
2999 | }; | |
5b5d99cf JB |
3000 | unsigned char *end; |
3001 | ||
3002 | crc = ~crc & 0xffffffff; | |
3003 | for (end = buf + len; buf < end; ++buf) | |
3004 | crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8); | |
3005 | return ~crc & 0xffffffff;; | |
3006 | } | |
5b03f266 AC |
3007 | |
3008 | ULONGEST | |
3009 | align_up (ULONGEST v, int n) | |
3010 | { | |
3011 | /* Check that N is really a power of two. */ | |
3012 | gdb_assert (n && (n & (n-1)) == 0); | |
3013 | return (v + n - 1) & -n; | |
3014 | } | |
3015 | ||
3016 | ULONGEST | |
3017 | align_down (ULONGEST v, int n) | |
3018 | { | |
3019 | /* Check that N is really a power of two. */ | |
3020 | gdb_assert (n && (n & (n-1)) == 0); | |
3021 | return (v & -n); | |
3022 | } |