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, |
4fcef00a | 4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software |
1bac305b | 5 | 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" | |
29 | ||
6a83354a AC |
30 | #ifdef TUI |
31 | #include "tui/tui.h" /* For tui_get_command_dimension. */ | |
32 | #endif | |
33 | ||
9d271fd8 AC |
34 | #ifdef __GO32__ |
35 | #include <pc.h> | |
36 | #endif | |
37 | ||
c906108c SS |
38 | /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */ |
39 | #ifdef reg | |
40 | #undef reg | |
41 | #endif | |
42 | ||
042be3a9 | 43 | #include <signal.h> |
c906108c SS |
44 | #include "gdbcmd.h" |
45 | #include "serial.h" | |
46 | #include "bfd.h" | |
47 | #include "target.h" | |
48 | #include "demangle.h" | |
49 | #include "expression.h" | |
50 | #include "language.h" | |
234b45d4 | 51 | #include "charset.h" |
c906108c | 52 | #include "annotate.h" |
303c8ebd | 53 | #include "filenames.h" |
7b90c3f9 | 54 | #include "symfile.h" |
c906108c | 55 | |
8731e58e | 56 | #include "inferior.h" /* for signed_pointer_to_address */ |
ac2e2ef7 | 57 | |
2d1b2124 AC |
58 | #include <sys/param.h> /* For MAXPATHLEN */ |
59 | ||
020cc13c AC |
60 | #ifdef HAVE_CURSES_H |
61 | #include <curses.h> | |
62 | #endif | |
63 | #ifdef HAVE_TERM_H | |
64 | #include <term.h> | |
65 | #endif | |
66 | ||
dbda9972 | 67 | #include "readline/readline.h" |
c906108c | 68 | |
3c37485b | 69 | #ifdef NEED_DECLARATION_MALLOC |
8dbb1c65 | 70 | extern PTR malloc (); /* OK: PTR */ |
3c37485b | 71 | #endif |
0e52036f | 72 | #ifdef NEED_DECLARATION_REALLOC |
8dbb1c65 | 73 | extern PTR realloc (); /* OK: PTR */ |
0e52036f | 74 | #endif |
81b8eb80 AC |
75 | #ifdef NEED_DECLARATION_FREE |
76 | extern void free (); | |
77 | #endif | |
a4db0f07 RH |
78 | /* Actually, we'll never have the decl, since we don't define _GNU_SOURCE. */ |
79 | #if defined(HAVE_CANONICALIZE_FILE_NAME) \ | |
80 | && defined(NEED_DECLARATION_CANONICALIZE_FILE_NAME) | |
81 | extern char *canonicalize_file_name (const char *); | |
82 | #endif | |
81b8eb80 | 83 | |
c906108c SS |
84 | /* readline defines this. */ |
85 | #undef savestring | |
86 | ||
9a4105ab | 87 | void (*deprecated_error_begin_hook) (void); |
c906108c | 88 | |
2acceee2 JM |
89 | /* Holds the last error message issued by gdb */ |
90 | ||
d9fcf2fb | 91 | static struct ui_file *gdb_lasterr; |
2acceee2 | 92 | |
c906108c SS |
93 | /* Prototypes for local functions */ |
94 | ||
d9fcf2fb JM |
95 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
96 | va_list, int); | |
c906108c | 97 | |
d9fcf2fb | 98 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 99 | |
e42c9534 AC |
100 | static void do_my_cleanups (struct cleanup **, struct cleanup *); |
101 | ||
a14ed312 | 102 | static void prompt_for_continue (void); |
c906108c | 103 | |
eb0d3137 | 104 | static void set_screen_size (void); |
a14ed312 | 105 | static void set_width (void); |
c906108c | 106 | |
d75e3c94 JJ |
107 | static NORETURN void error_stream_1 (struct ui_file *stream, |
108 | enum return_reason reason) ATTR_NORETURN; | |
109 | ||
c906108c SS |
110 | /* Chain of cleanup actions established with make_cleanup, |
111 | to be executed if an error happens. */ | |
112 | ||
c5aa993b JM |
113 | static struct cleanup *cleanup_chain; /* cleaned up after a failed command */ |
114 | static struct cleanup *final_cleanup_chain; /* cleaned up when gdb exits */ | |
115 | static struct cleanup *run_cleanup_chain; /* cleaned up on each 'run' */ | |
116 | static struct cleanup *exec_cleanup_chain; /* cleaned up on each execution command */ | |
6426a772 | 117 | /* cleaned up on each error from within an execution command */ |
8731e58e | 118 | static struct cleanup *exec_error_cleanup_chain; |
43ff13b4 JM |
119 | |
120 | /* Pointer to what is left to do for an execution command after the | |
121 | target stops. Used only in asynchronous mode, by targets that | |
122 | support async execution. The finish and until commands use it. So | |
123 | does the target extended-remote command. */ | |
124 | struct continuation *cmd_continuation; | |
c2d11a7d | 125 | struct continuation *intermediate_continuation; |
c906108c SS |
126 | |
127 | /* Nonzero if we have job control. */ | |
128 | ||
129 | int job_control; | |
130 | ||
131 | /* Nonzero means a quit has been requested. */ | |
132 | ||
133 | int quit_flag; | |
134 | ||
135 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
136 | than waiting until QUIT is executed. Be careful in setting this; | |
137 | code which executes with immediate_quit set has to be very careful | |
138 | about being able to deal with being interrupted at any time. It is | |
139 | almost always better to use QUIT; the only exception I can think of | |
140 | is being able to quit out of a system call (using EINTR loses if | |
141 | the SIGINT happens between the previous QUIT and the system call). | |
142 | To immediately quit in the case in which a SIGINT happens between | |
143 | the previous QUIT and setting immediate_quit (desirable anytime we | |
144 | expect to block), call QUIT after setting immediate_quit. */ | |
145 | ||
146 | int immediate_quit; | |
147 | ||
4a351cef AF |
148 | /* Nonzero means that encoded C++/ObjC names should be printed out in their |
149 | C++/ObjC form rather than raw. */ | |
c906108c SS |
150 | |
151 | int demangle = 1; | |
152 | ||
4a351cef AF |
153 | /* Nonzero means that encoded C++/ObjC names should be printed out in their |
154 | C++/ObjC form even in assembler language displays. If this is set, but | |
c906108c SS |
155 | DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */ |
156 | ||
157 | int asm_demangle = 0; | |
158 | ||
159 | /* Nonzero means that strings with character values >0x7F should be printed | |
160 | as octal escapes. Zero means just print the value (e.g. it's an | |
161 | international character, and the terminal or window can cope.) */ | |
162 | ||
163 | int sevenbit_strings = 0; | |
164 | ||
165 | /* String to be printed before error messages, if any. */ | |
166 | ||
167 | char *error_pre_print; | |
168 | ||
169 | /* String to be printed before quit messages, if any. */ | |
170 | ||
171 | char *quit_pre_print; | |
172 | ||
173 | /* String to be printed before warning messages, if any. */ | |
174 | ||
175 | char *warning_pre_print = "\nwarning: "; | |
176 | ||
177 | int pagination_enabled = 1; | |
c906108c | 178 | \f |
c5aa993b | 179 | |
c906108c SS |
180 | /* Add a new cleanup to the cleanup_chain, |
181 | and return the previous chain pointer | |
182 | to be passed later to do_cleanups or discard_cleanups. | |
183 | Args are FUNCTION to clean up with, and ARG to pass to it. */ | |
184 | ||
185 | struct cleanup * | |
e4005526 | 186 | make_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 187 | { |
c5aa993b | 188 | return make_my_cleanup (&cleanup_chain, function, arg); |
c906108c SS |
189 | } |
190 | ||
191 | struct cleanup * | |
e4005526 | 192 | make_final_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 193 | { |
c5aa993b | 194 | return make_my_cleanup (&final_cleanup_chain, function, arg); |
c906108c | 195 | } |
7a292a7a | 196 | |
c906108c | 197 | struct cleanup * |
e4005526 | 198 | make_run_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 199 | { |
c5aa993b | 200 | return make_my_cleanup (&run_cleanup_chain, function, arg); |
c906108c | 201 | } |
7a292a7a | 202 | |
43ff13b4 | 203 | struct cleanup * |
e4005526 | 204 | make_exec_cleanup (make_cleanup_ftype *function, void *arg) |
43ff13b4 | 205 | { |
c5aa993b | 206 | return make_my_cleanup (&exec_cleanup_chain, function, arg); |
43ff13b4 JM |
207 | } |
208 | ||
6426a772 | 209 | struct cleanup * |
e4005526 | 210 | make_exec_error_cleanup (make_cleanup_ftype *function, void *arg) |
6426a772 JM |
211 | { |
212 | return make_my_cleanup (&exec_error_cleanup_chain, function, arg); | |
213 | } | |
214 | ||
7a292a7a | 215 | static void |
fba45db2 | 216 | do_freeargv (void *arg) |
7a292a7a | 217 | { |
c5aa993b | 218 | freeargv ((char **) arg); |
7a292a7a SS |
219 | } |
220 | ||
221 | struct cleanup * | |
fba45db2 | 222 | make_cleanup_freeargv (char **arg) |
7a292a7a SS |
223 | { |
224 | return make_my_cleanup (&cleanup_chain, do_freeargv, arg); | |
225 | } | |
226 | ||
5c65bbb6 AC |
227 | static void |
228 | do_bfd_close_cleanup (void *arg) | |
229 | { | |
230 | bfd_close (arg); | |
231 | } | |
232 | ||
233 | struct cleanup * | |
234 | make_cleanup_bfd_close (bfd *abfd) | |
235 | { | |
236 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
237 | } | |
238 | ||
f5ff8c83 AC |
239 | static void |
240 | do_close_cleanup (void *arg) | |
241 | { | |
f042532c AC |
242 | int *fd = arg; |
243 | close (*fd); | |
244 | xfree (fd); | |
f5ff8c83 AC |
245 | } |
246 | ||
247 | struct cleanup * | |
248 | make_cleanup_close (int fd) | |
249 | { | |
f042532c AC |
250 | int *saved_fd = xmalloc (sizeof (fd)); |
251 | *saved_fd = fd; | |
252 | return make_cleanup (do_close_cleanup, saved_fd); | |
f5ff8c83 AC |
253 | } |
254 | ||
11cf8741 | 255 | static void |
d9fcf2fb | 256 | do_ui_file_delete (void *arg) |
11cf8741 | 257 | { |
d9fcf2fb | 258 | ui_file_delete (arg); |
11cf8741 JM |
259 | } |
260 | ||
261 | struct cleanup * | |
d9fcf2fb | 262 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 263 | { |
d9fcf2fb | 264 | return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg); |
11cf8741 JM |
265 | } |
266 | ||
7b90c3f9 JB |
267 | static void |
268 | do_free_section_addr_info (void *arg) | |
269 | { | |
270 | free_section_addr_info (arg); | |
271 | } | |
272 | ||
273 | struct cleanup * | |
274 | make_cleanup_free_section_addr_info (struct section_addr_info *addrs) | |
275 | { | |
276 | return make_my_cleanup (&cleanup_chain, do_free_section_addr_info, addrs); | |
277 | } | |
278 | ||
279 | ||
c906108c | 280 | struct cleanup * |
e4005526 AC |
281 | make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function, |
282 | void *arg) | |
c906108c | 283 | { |
52f0bd74 | 284 | struct cleanup *new |
8731e58e | 285 | = (struct cleanup *) xmalloc (sizeof (struct cleanup)); |
52f0bd74 | 286 | struct cleanup *old_chain = *pmy_chain; |
c906108c SS |
287 | |
288 | new->next = *pmy_chain; | |
289 | new->function = function; | |
290 | new->arg = arg; | |
291 | *pmy_chain = new; | |
292 | ||
293 | return old_chain; | |
294 | } | |
295 | ||
296 | /* Discard cleanups and do the actions they describe | |
297 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
298 | ||
299 | void | |
aa1ee363 | 300 | do_cleanups (struct cleanup *old_chain) |
c906108c | 301 | { |
c5aa993b | 302 | do_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
303 | } |
304 | ||
305 | void | |
aa1ee363 | 306 | do_final_cleanups (struct cleanup *old_chain) |
c906108c | 307 | { |
c5aa993b | 308 | do_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
309 | } |
310 | ||
311 | void | |
aa1ee363 | 312 | do_run_cleanups (struct cleanup *old_chain) |
c906108c | 313 | { |
c5aa993b | 314 | do_my_cleanups (&run_cleanup_chain, old_chain); |
c906108c SS |
315 | } |
316 | ||
43ff13b4 | 317 | void |
aa1ee363 | 318 | do_exec_cleanups (struct cleanup *old_chain) |
43ff13b4 | 319 | { |
c5aa993b | 320 | do_my_cleanups (&exec_cleanup_chain, old_chain); |
43ff13b4 JM |
321 | } |
322 | ||
6426a772 | 323 | void |
aa1ee363 | 324 | do_exec_error_cleanups (struct cleanup *old_chain) |
6426a772 JM |
325 | { |
326 | do_my_cleanups (&exec_error_cleanup_chain, old_chain); | |
327 | } | |
328 | ||
e42c9534 | 329 | static void |
aa1ee363 AC |
330 | do_my_cleanups (struct cleanup **pmy_chain, |
331 | struct cleanup *old_chain) | |
c906108c | 332 | { |
52f0bd74 | 333 | struct cleanup *ptr; |
c906108c SS |
334 | while ((ptr = *pmy_chain) != old_chain) |
335 | { | |
336 | *pmy_chain = ptr->next; /* Do this first incase recursion */ | |
337 | (*ptr->function) (ptr->arg); | |
b8c9b27d | 338 | xfree (ptr); |
c906108c SS |
339 | } |
340 | } | |
341 | ||
342 | /* Discard cleanups, not doing the actions they describe, | |
343 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
344 | ||
345 | void | |
aa1ee363 | 346 | discard_cleanups (struct cleanup *old_chain) |
c906108c | 347 | { |
c5aa993b | 348 | discard_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
349 | } |
350 | ||
351 | void | |
aa1ee363 | 352 | discard_final_cleanups (struct cleanup *old_chain) |
c906108c | 353 | { |
c5aa993b | 354 | discard_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
355 | } |
356 | ||
6426a772 | 357 | void |
aa1ee363 | 358 | discard_exec_error_cleanups (struct cleanup *old_chain) |
6426a772 JM |
359 | { |
360 | discard_my_cleanups (&exec_error_cleanup_chain, old_chain); | |
361 | } | |
362 | ||
c906108c | 363 | void |
aa1ee363 AC |
364 | discard_my_cleanups (struct cleanup **pmy_chain, |
365 | struct cleanup *old_chain) | |
c906108c | 366 | { |
52f0bd74 | 367 | struct cleanup *ptr; |
c906108c SS |
368 | while ((ptr = *pmy_chain) != old_chain) |
369 | { | |
370 | *pmy_chain = ptr->next; | |
b8c9b27d | 371 | xfree (ptr); |
c906108c SS |
372 | } |
373 | } | |
374 | ||
375 | /* Set the cleanup_chain to 0, and return the old cleanup chain. */ | |
376 | struct cleanup * | |
fba45db2 | 377 | save_cleanups (void) |
c906108c | 378 | { |
c5aa993b | 379 | return save_my_cleanups (&cleanup_chain); |
c906108c SS |
380 | } |
381 | ||
382 | struct cleanup * | |
fba45db2 | 383 | save_final_cleanups (void) |
c906108c | 384 | { |
c5aa993b | 385 | return save_my_cleanups (&final_cleanup_chain); |
c906108c SS |
386 | } |
387 | ||
388 | struct cleanup * | |
fba45db2 | 389 | save_my_cleanups (struct cleanup **pmy_chain) |
c906108c SS |
390 | { |
391 | struct cleanup *old_chain = *pmy_chain; | |
392 | ||
393 | *pmy_chain = 0; | |
394 | return old_chain; | |
395 | } | |
396 | ||
397 | /* Restore the cleanup chain from a previously saved chain. */ | |
398 | void | |
fba45db2 | 399 | restore_cleanups (struct cleanup *chain) |
c906108c | 400 | { |
c5aa993b | 401 | restore_my_cleanups (&cleanup_chain, chain); |
c906108c SS |
402 | } |
403 | ||
404 | void | |
fba45db2 | 405 | restore_final_cleanups (struct cleanup *chain) |
c906108c | 406 | { |
c5aa993b | 407 | restore_my_cleanups (&final_cleanup_chain, chain); |
c906108c SS |
408 | } |
409 | ||
410 | void | |
fba45db2 | 411 | restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain) |
c906108c SS |
412 | { |
413 | *pmy_chain = chain; | |
414 | } | |
415 | ||
416 | /* This function is useful for cleanups. | |
417 | Do | |
418 | ||
c5aa993b JM |
419 | foo = xmalloc (...); |
420 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
421 | |
422 | to arrange to free the object thus allocated. */ | |
423 | ||
424 | void | |
2f9429ae | 425 | free_current_contents (void *ptr) |
c906108c | 426 | { |
2f9429ae | 427 | void **location = ptr; |
e2f9c474 | 428 | if (location == NULL) |
8e65ff28 AC |
429 | internal_error (__FILE__, __LINE__, |
430 | "free_current_contents: NULL pointer"); | |
2f9429ae | 431 | if (*location != NULL) |
e2f9c474 | 432 | { |
b8c9b27d | 433 | xfree (*location); |
e2f9c474 AC |
434 | *location = NULL; |
435 | } | |
c906108c SS |
436 | } |
437 | ||
438 | /* Provide a known function that does nothing, to use as a base for | |
439 | for a possibly long chain of cleanups. This is useful where we | |
440 | use the cleanup chain for handling normal cleanups as well as dealing | |
441 | with cleanups that need to be done as a result of a call to error(). | |
442 | In such cases, we may not be certain where the first cleanup is, unless | |
443 | we have a do-nothing one to always use as the base. */ | |
444 | ||
c906108c | 445 | void |
e4005526 | 446 | null_cleanup (void *arg) |
c906108c SS |
447 | { |
448 | } | |
449 | ||
74f832da | 450 | /* Add a continuation to the continuation list, the global list |
c2d11a7d | 451 | cmd_continuation. The new continuation will be added at the front.*/ |
43ff13b4 | 452 | void |
74f832da KB |
453 | add_continuation (void (*continuation_hook) (struct continuation_arg *), |
454 | struct continuation_arg *arg_list) | |
43ff13b4 | 455 | { |
c5aa993b | 456 | struct continuation *continuation_ptr; |
43ff13b4 | 457 | |
8731e58e AC |
458 | continuation_ptr = |
459 | (struct continuation *) xmalloc (sizeof (struct continuation)); | |
c5aa993b JM |
460 | continuation_ptr->continuation_hook = continuation_hook; |
461 | continuation_ptr->arg_list = arg_list; | |
462 | continuation_ptr->next = cmd_continuation; | |
463 | cmd_continuation = continuation_ptr; | |
43ff13b4 JM |
464 | } |
465 | ||
466 | /* Walk down the cmd_continuation list, and execute all the | |
c2d11a7d JM |
467 | continuations. There is a problem though. In some cases new |
468 | continuations may be added while we are in the middle of this | |
469 | loop. If this happens they will be added in the front, and done | |
470 | before we have a chance of exhausting those that were already | |
471 | there. We need to then save the beginning of the list in a pointer | |
472 | and do the continuations from there on, instead of using the | |
473 | global beginning of list as our iteration pointer.*/ | |
c5aa993b | 474 | void |
fba45db2 | 475 | do_all_continuations (void) |
c2d11a7d JM |
476 | { |
477 | struct continuation *continuation_ptr; | |
478 | struct continuation *saved_continuation; | |
479 | ||
480 | /* Copy the list header into another pointer, and set the global | |
481 | list header to null, so that the global list can change as a side | |
482 | effect of invoking the continuations and the processing of | |
483 | the preexisting continuations will not be affected. */ | |
484 | continuation_ptr = cmd_continuation; | |
485 | cmd_continuation = NULL; | |
486 | ||
487 | /* Work now on the list we have set aside. */ | |
488 | while (continuation_ptr) | |
8731e58e AC |
489 | { |
490 | (continuation_ptr->continuation_hook) (continuation_ptr->arg_list); | |
491 | saved_continuation = continuation_ptr; | |
492 | continuation_ptr = continuation_ptr->next; | |
493 | xfree (saved_continuation); | |
494 | } | |
c2d11a7d JM |
495 | } |
496 | ||
497 | /* Walk down the cmd_continuation list, and get rid of all the | |
498 | continuations. */ | |
499 | void | |
fba45db2 | 500 | discard_all_continuations (void) |
43ff13b4 | 501 | { |
c5aa993b | 502 | struct continuation *continuation_ptr; |
43ff13b4 | 503 | |
c5aa993b JM |
504 | while (cmd_continuation) |
505 | { | |
c5aa993b JM |
506 | continuation_ptr = cmd_continuation; |
507 | cmd_continuation = continuation_ptr->next; | |
b8c9b27d | 508 | xfree (continuation_ptr); |
c5aa993b | 509 | } |
43ff13b4 | 510 | } |
c2c6d25f | 511 | |
57e687d9 | 512 | /* Add a continuation to the continuation list, the global list |
c2d11a7d JM |
513 | intermediate_continuation. The new continuation will be added at the front.*/ |
514 | void | |
74f832da KB |
515 | add_intermediate_continuation (void (*continuation_hook) |
516 | (struct continuation_arg *), | |
517 | struct continuation_arg *arg_list) | |
c2d11a7d JM |
518 | { |
519 | struct continuation *continuation_ptr; | |
520 | ||
8731e58e AC |
521 | continuation_ptr = |
522 | (struct continuation *) xmalloc (sizeof (struct continuation)); | |
c2d11a7d JM |
523 | continuation_ptr->continuation_hook = continuation_hook; |
524 | continuation_ptr->arg_list = arg_list; | |
525 | continuation_ptr->next = intermediate_continuation; | |
526 | intermediate_continuation = continuation_ptr; | |
527 | } | |
528 | ||
529 | /* Walk down the cmd_continuation list, and execute all the | |
530 | continuations. There is a problem though. In some cases new | |
531 | continuations may be added while we are in the middle of this | |
532 | loop. If this happens they will be added in the front, and done | |
533 | before we have a chance of exhausting those that were already | |
534 | there. We need to then save the beginning of the list in a pointer | |
535 | and do the continuations from there on, instead of using the | |
536 | global beginning of list as our iteration pointer.*/ | |
537 | void | |
fba45db2 | 538 | do_all_intermediate_continuations (void) |
c2d11a7d JM |
539 | { |
540 | struct continuation *continuation_ptr; | |
541 | struct continuation *saved_continuation; | |
542 | ||
543 | /* Copy the list header into another pointer, and set the global | |
544 | list header to null, so that the global list can change as a side | |
545 | effect of invoking the continuations and the processing of | |
546 | the preexisting continuations will not be affected. */ | |
547 | continuation_ptr = intermediate_continuation; | |
548 | intermediate_continuation = NULL; | |
549 | ||
550 | /* Work now on the list we have set aside. */ | |
551 | while (continuation_ptr) | |
8731e58e AC |
552 | { |
553 | (continuation_ptr->continuation_hook) (continuation_ptr->arg_list); | |
554 | saved_continuation = continuation_ptr; | |
555 | continuation_ptr = continuation_ptr->next; | |
556 | xfree (saved_continuation); | |
557 | } | |
c2d11a7d JM |
558 | } |
559 | ||
c2c6d25f JM |
560 | /* Walk down the cmd_continuation list, and get rid of all the |
561 | continuations. */ | |
562 | void | |
fba45db2 | 563 | discard_all_intermediate_continuations (void) |
c2c6d25f JM |
564 | { |
565 | struct continuation *continuation_ptr; | |
566 | ||
c2d11a7d | 567 | while (intermediate_continuation) |
c2c6d25f | 568 | { |
c2d11a7d JM |
569 | continuation_ptr = intermediate_continuation; |
570 | intermediate_continuation = continuation_ptr->next; | |
b8c9b27d | 571 | xfree (continuation_ptr); |
c2c6d25f JM |
572 | } |
573 | } | |
c906108c | 574 | \f |
c5aa993b | 575 | |
8731e58e | 576 | |
f5a96129 AC |
577 | /* Print a warning message. The first argument STRING is the warning |
578 | message, used as an fprintf format string, the second is the | |
579 | va_list of arguments for that string. A warning is unfiltered (not | |
580 | paginated) so that the user does not need to page through each | |
581 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
582 | |
583 | void | |
f5a96129 | 584 | vwarning (const char *string, va_list args) |
c906108c | 585 | { |
9a4105ab AC |
586 | if (deprecated_warning_hook) |
587 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
588 | else |
589 | { | |
590 | target_terminal_ours (); | |
591 | wrap_here (""); /* Force out any buffered output */ | |
592 | gdb_flush (gdb_stdout); | |
593 | if (warning_pre_print) | |
306d9ac5 | 594 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
595 | vfprintf_unfiltered (gdb_stderr, string, args); |
596 | fprintf_unfiltered (gdb_stderr, "\n"); | |
597 | va_end (args); | |
598 | } | |
c906108c SS |
599 | } |
600 | ||
601 | /* Print a warning message. | |
602 | The first argument STRING is the warning message, used as a fprintf string, | |
603 | and the remaining args are passed as arguments to it. | |
604 | The primary difference between warnings and errors is that a warning | |
605 | does not force the return to command level. */ | |
606 | ||
c906108c | 607 | void |
8731e58e | 608 | warning (const char *string, ...) |
c906108c SS |
609 | { |
610 | va_list args; | |
c906108c | 611 | va_start (args, string); |
f5a96129 AC |
612 | vwarning (string, args); |
613 | va_end (args); | |
c906108c SS |
614 | } |
615 | ||
c906108c SS |
616 | /* Print an error message and return to command level. |
617 | The first argument STRING is the error message, used as a fprintf string, | |
618 | and the remaining args are passed as arguments to it. */ | |
619 | ||
4ce44c66 JM |
620 | NORETURN void |
621 | verror (const char *string, va_list args) | |
622 | { | |
fffee0be AC |
623 | struct ui_file *tmp_stream = mem_fileopen (); |
624 | make_cleanup_ui_file_delete (tmp_stream); | |
625 | vfprintf_unfiltered (tmp_stream, string, args); | |
d75e3c94 | 626 | error_stream_1 (tmp_stream, RETURN_ERROR); |
4ce44c66 JM |
627 | } |
628 | ||
c906108c | 629 | NORETURN void |
8731e58e | 630 | error (const char *string, ...) |
c906108c SS |
631 | { |
632 | va_list args; | |
c906108c | 633 | va_start (args, string); |
4ce44c66 JM |
634 | verror (string, args); |
635 | va_end (args); | |
c906108c SS |
636 | } |
637 | ||
d75e3c94 JJ |
638 | /* Print an error message and quit. |
639 | The first argument STRING is the error message, used as a fprintf string, | |
640 | and the remaining args are passed as arguments to it. */ | |
641 | ||
642 | NORETURN void | |
643 | vfatal (const char *string, va_list args) | |
644 | { | |
645 | struct ui_file *tmp_stream = mem_fileopen (); | |
646 | make_cleanup_ui_file_delete (tmp_stream); | |
647 | vfprintf_unfiltered (tmp_stream, string, args); | |
648 | error_stream_1 (tmp_stream, RETURN_QUIT); | |
649 | } | |
650 | ||
651 | NORETURN void | |
652 | fatal (const char *string, ...) | |
653 | { | |
654 | va_list args; | |
655 | va_start (args, string); | |
656 | vfatal (string, args); | |
657 | va_end (args); | |
658 | } | |
659 | ||
fffee0be AC |
660 | static void |
661 | do_write (void *data, const char *buffer, long length_buffer) | |
662 | { | |
663 | ui_file_write (data, buffer, length_buffer); | |
664 | } | |
665 | ||
4fcef00a JJ |
666 | /* Cause a silent error to occur. Any error message is recorded |
667 | though it is not issued. */ | |
668 | NORETURN void | |
669 | error_silent (const char *string, ...) | |
670 | { | |
671 | va_list args; | |
672 | struct ui_file *tmp_stream = mem_fileopen (); | |
673 | va_start (args, string); | |
674 | make_cleanup_ui_file_delete (tmp_stream); | |
675 | vfprintf_unfiltered (tmp_stream, string, args); | |
676 | /* Copy the stream into the GDB_LASTERR buffer. */ | |
677 | ui_file_rewind (gdb_lasterr); | |
678 | ui_file_put (tmp_stream, do_write, gdb_lasterr); | |
679 | va_end (args); | |
680 | ||
681 | throw_exception (RETURN_ERROR); | |
682 | } | |
683 | ||
684 | /* Output an error message including any pre-print text to gdb_stderr. */ | |
685 | void | |
686 | error_output_message (char *pre_print, char *msg) | |
687 | { | |
688 | target_terminal_ours (); | |
689 | wrap_here (""); /* Force out any buffered output */ | |
690 | gdb_flush (gdb_stdout); | |
691 | annotate_error_begin (); | |
692 | if (pre_print) | |
693 | fputs_filtered (pre_print, gdb_stderr); | |
694 | fputs_filtered (msg, gdb_stderr); | |
695 | fprintf_filtered (gdb_stderr, "\n"); | |
696 | } | |
697 | ||
d75e3c94 JJ |
698 | static NORETURN void |
699 | error_stream_1 (struct ui_file *stream, enum return_reason reason) | |
2acceee2 | 700 | { |
9a4105ab AC |
701 | if (deprecated_error_begin_hook) |
702 | deprecated_error_begin_hook (); | |
fffee0be AC |
703 | |
704 | /* Copy the stream into the GDB_LASTERR buffer. */ | |
705 | ui_file_rewind (gdb_lasterr); | |
706 | ui_file_put (stream, do_write, gdb_lasterr); | |
707 | ||
708 | /* Write the message plus any error_pre_print to gdb_stderr. */ | |
709 | target_terminal_ours (); | |
710 | wrap_here (""); /* Force out any buffered output */ | |
711 | gdb_flush (gdb_stdout); | |
712 | annotate_error_begin (); | |
713 | if (error_pre_print) | |
306d9ac5 | 714 | fputs_filtered (error_pre_print, gdb_stderr); |
fffee0be AC |
715 | ui_file_put (stream, do_write, gdb_stderr); |
716 | fprintf_filtered (gdb_stderr, "\n"); | |
717 | ||
d75e3c94 JJ |
718 | throw_exception (reason); |
719 | } | |
720 | ||
721 | NORETURN void | |
722 | error_stream (struct ui_file *stream) | |
723 | { | |
724 | error_stream_1 (stream, RETURN_ERROR); | |
2acceee2 JM |
725 | } |
726 | ||
727 | /* Get the last error message issued by gdb */ | |
728 | ||
729 | char * | |
730 | error_last_message (void) | |
731 | { | |
4ce44c66 | 732 | long len; |
d9fcf2fb | 733 | return ui_file_xstrdup (gdb_lasterr, &len); |
2acceee2 | 734 | } |
8731e58e | 735 | |
2acceee2 JM |
736 | /* This is to be called by main() at the very beginning */ |
737 | ||
738 | void | |
739 | error_init (void) | |
740 | { | |
4ce44c66 | 741 | gdb_lasterr = mem_fileopen (); |
2acceee2 | 742 | } |
c906108c | 743 | |
dec43320 AC |
744 | /* Print a message reporting an internal error/warning. Ask the user |
745 | if they want to continue, dump core, or just exit. Return | |
746 | something to indicate a quit. */ | |
c906108c | 747 | |
dec43320 | 748 | struct internal_problem |
c906108c | 749 | { |
dec43320 AC |
750 | const char *name; |
751 | /* FIXME: cagney/2002-08-15: There should be ``maint set/show'' | |
752 | commands available for controlling these variables. */ | |
753 | enum auto_boolean should_quit; | |
754 | enum auto_boolean should_dump_core; | |
755 | }; | |
756 | ||
757 | /* Report a problem, internal to GDB, to the user. Once the problem | |
758 | has been reported, and assuming GDB didn't quit, the caller can | |
759 | either allow execution to resume or throw an error. */ | |
760 | ||
761 | static void | |
762 | internal_vproblem (struct internal_problem *problem, | |
8731e58e | 763 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 764 | { |
dec43320 | 765 | static int dejavu; |
375fc983 | 766 | int quit_p; |
7be570e7 | 767 | int dump_core_p; |
714b1282 | 768 | char *reason; |
c906108c | 769 | |
dec43320 | 770 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
771 | { |
772 | static char msg[] = "Recursive internal problem.\n"; | |
773 | switch (dejavu) | |
774 | { | |
775 | case 0: | |
776 | dejavu = 1; | |
777 | break; | |
778 | case 1: | |
779 | dejavu = 2; | |
780 | fputs_unfiltered (msg, gdb_stderr); | |
781 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
782 | default: | |
783 | dejavu = 3; | |
784 | write (STDERR_FILENO, msg, sizeof (msg)); | |
785 | exit (1); | |
786 | } | |
787 | } | |
c906108c | 788 | |
dec43320 | 789 | /* Try to get the message out and at the start of a new line. */ |
4261bedc | 790 | target_terminal_ours (); |
dec43320 AC |
791 | begin_line (); |
792 | ||
714b1282 AC |
793 | /* Create a string containing the full error/warning message. Need |
794 | to call query with this full string, as otherwize the reason | |
795 | (error/warning) and question become separated. Format using a | |
796 | style similar to a compiler error message. Include extra detail | |
797 | so that the user knows that they are living on the edge. */ | |
798 | { | |
799 | char *msg; | |
e623b504 | 800 | msg = xstrvprintf (fmt, ap); |
b435e160 | 801 | reason = xstrprintf ("\ |
714b1282 AC |
802 | %s:%d: %s: %s\n\ |
803 | A problem internal to GDB has been detected,\n\ | |
804 | further debugging may prove unreliable.", file, line, problem->name, msg); | |
805 | xfree (msg); | |
806 | make_cleanup (xfree, reason); | |
807 | } | |
7be570e7 | 808 | |
dec43320 AC |
809 | switch (problem->should_quit) |
810 | { | |
811 | case AUTO_BOOLEAN_AUTO: | |
812 | /* Default (yes/batch case) is to quit GDB. When in batch mode | |
8731e58e AC |
813 | this lessens the likelhood of GDB going into an infinate |
814 | loop. */ | |
714b1282 | 815 | quit_p = query ("%s\nQuit this debugging session? ", reason); |
dec43320 AC |
816 | break; |
817 | case AUTO_BOOLEAN_TRUE: | |
818 | quit_p = 1; | |
819 | break; | |
820 | case AUTO_BOOLEAN_FALSE: | |
821 | quit_p = 0; | |
822 | break; | |
823 | default: | |
824 | internal_error (__FILE__, __LINE__, "bad switch"); | |
825 | } | |
826 | ||
827 | switch (problem->should_dump_core) | |
828 | { | |
829 | case AUTO_BOOLEAN_AUTO: | |
830 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
8731e58e AC |
831 | `dropping' so that it is easier to see that something went |
832 | wrong in GDB. */ | |
714b1282 | 833 | dump_core_p = query ("%s\nCreate a core file of GDB? ", reason); |
dec43320 AC |
834 | break; |
835 | break; | |
836 | case AUTO_BOOLEAN_TRUE: | |
837 | dump_core_p = 1; | |
838 | break; | |
839 | case AUTO_BOOLEAN_FALSE: | |
840 | dump_core_p = 0; | |
841 | break; | |
842 | default: | |
843 | internal_error (__FILE__, __LINE__, "bad switch"); | |
844 | } | |
7be570e7 | 845 | |
375fc983 | 846 | if (quit_p) |
7be570e7 JM |
847 | { |
848 | if (dump_core_p) | |
8731e58e | 849 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
375fc983 AC |
850 | else |
851 | exit (1); | |
7be570e7 JM |
852 | } |
853 | else | |
854 | { | |
855 | if (dump_core_p) | |
375fc983 AC |
856 | { |
857 | if (fork () == 0) | |
8731e58e | 858 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
375fc983 | 859 | } |
7be570e7 | 860 | } |
96baa820 JM |
861 | |
862 | dejavu = 0; | |
dec43320 AC |
863 | } |
864 | ||
865 | static struct internal_problem internal_error_problem = { | |
866 | "internal-error", AUTO_BOOLEAN_AUTO, AUTO_BOOLEAN_AUTO | |
867 | }; | |
868 | ||
869 | NORETURN void | |
8731e58e | 870 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
871 | { |
872 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
b5a2688f | 873 | throw_exception (RETURN_ERROR); |
c906108c SS |
874 | } |
875 | ||
4ce44c66 | 876 | NORETURN void |
8e65ff28 | 877 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
878 | { |
879 | va_list ap; | |
880 | va_start (ap, string); | |
8e65ff28 | 881 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
882 | va_end (ap); |
883 | } | |
884 | ||
dec43320 | 885 | static struct internal_problem internal_warning_problem = { |
d833db3b | 886 | "internal-warning", AUTO_BOOLEAN_AUTO, AUTO_BOOLEAN_AUTO |
dec43320 AC |
887 | }; |
888 | ||
889 | void | |
8731e58e | 890 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
891 | { |
892 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
893 | } | |
894 | ||
895 | void | |
896 | internal_warning (const char *file, int line, const char *string, ...) | |
897 | { | |
898 | va_list ap; | |
899 | va_start (ap, string); | |
900 | internal_vwarning (file, line, string, ap); | |
901 | va_end (ap); | |
902 | } | |
903 | ||
c906108c SS |
904 | /* The strerror() function can return NULL for errno values that are |
905 | out of range. Provide a "safe" version that always returns a | |
906 | printable string. */ | |
907 | ||
908 | char * | |
fba45db2 | 909 | safe_strerror (int errnum) |
c906108c SS |
910 | { |
911 | char *msg; | |
912 | static char buf[32]; | |
913 | ||
5cb316ef AC |
914 | msg = strerror (errnum); |
915 | if (msg == NULL) | |
c906108c SS |
916 | { |
917 | sprintf (buf, "(undocumented errno %d)", errnum); | |
918 | msg = buf; | |
919 | } | |
920 | return (msg); | |
921 | } | |
922 | ||
c906108c SS |
923 | /* Print the system error message for errno, and also mention STRING |
924 | as the file name for which the error was encountered. | |
925 | Then return to command level. */ | |
926 | ||
927 | NORETURN void | |
6972bc8b | 928 | perror_with_name (const char *string) |
c906108c SS |
929 | { |
930 | char *err; | |
931 | char *combined; | |
932 | ||
933 | err = safe_strerror (errno); | |
934 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
935 | strcpy (combined, string); | |
936 | strcat (combined, ": "); | |
937 | strcat (combined, err); | |
938 | ||
939 | /* I understand setting these is a matter of taste. Still, some people | |
940 | may clear errno but not know about bfd_error. Doing this here is not | |
941 | unreasonable. */ | |
942 | bfd_set_error (bfd_error_no_error); | |
943 | errno = 0; | |
944 | ||
c5aa993b | 945 | error ("%s.", combined); |
c906108c SS |
946 | } |
947 | ||
948 | /* Print the system error message for ERRCODE, and also mention STRING | |
949 | as the file name for which the error was encountered. */ | |
950 | ||
951 | void | |
6972bc8b | 952 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
953 | { |
954 | char *err; | |
955 | char *combined; | |
956 | ||
957 | err = safe_strerror (errcode); | |
958 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
959 | strcpy (combined, string); | |
960 | strcat (combined, ": "); | |
961 | strcat (combined, err); | |
962 | ||
963 | /* We want anything which was printed on stdout to come out first, before | |
964 | this message. */ | |
965 | gdb_flush (gdb_stdout); | |
966 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
967 | } | |
968 | ||
969 | /* Control C eventually causes this to be called, at a convenient time. */ | |
970 | ||
971 | void | |
fba45db2 | 972 | quit (void) |
c906108c | 973 | { |
819cc324 | 974 | struct serial *gdb_stdout_serial = serial_fdopen (1); |
c906108c SS |
975 | |
976 | target_terminal_ours (); | |
977 | ||
978 | /* We want all output to appear now, before we print "Quit". We | |
979 | have 3 levels of buffering we have to flush (it's possible that | |
980 | some of these should be changed to flush the lower-level ones | |
981 | too): */ | |
982 | ||
983 | /* 1. The _filtered buffer. */ | |
c5aa993b | 984 | wrap_here ((char *) 0); |
c906108c SS |
985 | |
986 | /* 2. The stdio buffer. */ | |
987 | gdb_flush (gdb_stdout); | |
988 | gdb_flush (gdb_stderr); | |
989 | ||
990 | /* 3. The system-level buffer. */ | |
2cd58942 AC |
991 | serial_drain_output (gdb_stdout_serial); |
992 | serial_un_fdopen (gdb_stdout_serial); | |
c906108c SS |
993 | |
994 | annotate_error_begin (); | |
995 | ||
996 | /* Don't use *_filtered; we don't want to prompt the user to continue. */ | |
997 | if (quit_pre_print) | |
306d9ac5 | 998 | fputs_unfiltered (quit_pre_print, gdb_stderr); |
c906108c | 999 | |
7be570e7 JM |
1000 | #ifdef __MSDOS__ |
1001 | /* No steenking SIGINT will ever be coming our way when the | |
1002 | program is resumed. Don't lie. */ | |
1003 | fprintf_unfiltered (gdb_stderr, "Quit\n"); | |
1004 | #else | |
c906108c | 1005 | if (job_control |
8731e58e AC |
1006 | /* If there is no terminal switching for this target, then we can't |
1007 | possibly get screwed by the lack of job control. */ | |
c906108c SS |
1008 | || current_target.to_terminal_ours == NULL) |
1009 | fprintf_unfiltered (gdb_stderr, "Quit\n"); | |
1010 | else | |
1011 | fprintf_unfiltered (gdb_stderr, | |
8731e58e | 1012 | "Quit (expect signal SIGINT when the program is resumed)\n"); |
7be570e7 | 1013 | #endif |
b5a2688f | 1014 | throw_exception (RETURN_QUIT); |
c906108c SS |
1015 | } |
1016 | ||
c906108c | 1017 | /* Control C comes here */ |
c906108c | 1018 | void |
fba45db2 | 1019 | request_quit (int signo) |
c906108c SS |
1020 | { |
1021 | quit_flag = 1; | |
1f04aa62 AC |
1022 | /* Restore the signal handler. Harmless with BSD-style signals, |
1023 | needed for System V-style signals. */ | |
c906108c SS |
1024 | signal (signo, request_quit); |
1025 | ||
c5aa993b | 1026 | if (immediate_quit) |
c906108c | 1027 | quit (); |
c906108c | 1028 | } |
c906108c | 1029 | \f |
c906108c SS |
1030 | /* Called when a memory allocation fails, with the number of bytes of |
1031 | memory requested in SIZE. */ | |
1032 | ||
1033 | NORETURN void | |
fba45db2 | 1034 | nomem (long size) |
c906108c SS |
1035 | { |
1036 | if (size > 0) | |
1037 | { | |
8e65ff28 | 1038 | internal_error (__FILE__, __LINE__, |
8731e58e AC |
1039 | "virtual memory exhausted: can't allocate %ld bytes.", |
1040 | size); | |
c906108c SS |
1041 | } |
1042 | else | |
1043 | { | |
8731e58e | 1044 | internal_error (__FILE__, __LINE__, "virtual memory exhausted."); |
c906108c SS |
1045 | } |
1046 | } | |
1047 | ||
c0e61796 AC |
1048 | /* The xmalloc() (libiberty.h) family of memory management routines. |
1049 | ||
1050 | These are like the ISO-C malloc() family except that they implement | |
1051 | consistent semantics and guard against typical memory management | |
7936743b | 1052 | problems. */ |
c0e61796 AC |
1053 | |
1054 | /* NOTE: These are declared using PTR to ensure consistency with | |
1055 | "libiberty.h". xfree() is GDB local. */ | |
1056 | ||
8dbb1c65 | 1057 | PTR /* OK: PTR */ |
c0e61796 AC |
1058 | xmalloc (size_t size) |
1059 | { | |
7936743b AC |
1060 | void *val; |
1061 | ||
1062 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1063 | semantics. It never returns NULL. */ | |
1064 | if (size == 0) | |
1065 | size = 1; | |
1066 | ||
1067 | val = malloc (size); /* OK: malloc */ | |
1068 | if (val == NULL) | |
1069 | nomem (size); | |
1070 | ||
1071 | return (val); | |
c0e61796 | 1072 | } |
c906108c | 1073 | |
8dbb1c65 AC |
1074 | PTR /* OK: PTR */ |
1075 | xrealloc (PTR ptr, size_t size) /* OK: PTR */ | |
c906108c | 1076 | { |
0efffb96 AC |
1077 | void *val; |
1078 | ||
1079 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1080 | semantics. It never returns NULL. */ | |
1081 | if (size == 0) | |
1082 | size = 1; | |
1083 | ||
1084 | if (ptr != NULL) | |
1085 | val = realloc (ptr, size); /* OK: realloc */ | |
1086 | else | |
1087 | val = malloc (size); /* OK: malloc */ | |
1088 | if (val == NULL) | |
1089 | nomem (size); | |
1090 | ||
1091 | return (val); | |
c906108c | 1092 | } |
b8c9b27d | 1093 | |
8dbb1c65 | 1094 | PTR /* OK: PTR */ |
c0e61796 AC |
1095 | xcalloc (size_t number, size_t size) |
1096 | { | |
aa2ee5f6 AC |
1097 | void *mem; |
1098 | ||
1099 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1100 | semantics. It never returns NULL. */ | |
1101 | if (number == 0 || size == 0) | |
1102 | { | |
1103 | number = 1; | |
1104 | size = 1; | |
1105 | } | |
1106 | ||
1107 | mem = calloc (number, size); /* OK: xcalloc */ | |
1108 | if (mem == NULL) | |
1109 | nomem (number * size); | |
1110 | ||
1111 | return mem; | |
c0e61796 | 1112 | } |
b8c9b27d KB |
1113 | |
1114 | void | |
1115 | xfree (void *ptr) | |
1116 | { | |
2dc74dc1 AC |
1117 | if (ptr != NULL) |
1118 | free (ptr); /* OK: free */ | |
b8c9b27d | 1119 | } |
c906108c | 1120 | \f |
c5aa993b | 1121 | |
76995688 AC |
1122 | /* Like asprintf/vasprintf but get an internal_error if the call |
1123 | fails. */ | |
1124 | ||
9ebf4acf AC |
1125 | char * |
1126 | xstrprintf (const char *format, ...) | |
1127 | { | |
1128 | char *ret; | |
1129 | va_list args; | |
1130 | va_start (args, format); | |
e623b504 | 1131 | ret = xstrvprintf (format, args); |
9ebf4acf AC |
1132 | va_end (args); |
1133 | return ret; | |
1134 | } | |
1135 | ||
76995688 AC |
1136 | void |
1137 | xasprintf (char **ret, const char *format, ...) | |
1138 | { | |
1139 | va_list args; | |
1140 | va_start (args, format); | |
e623b504 | 1141 | (*ret) = xstrvprintf (format, args); |
76995688 AC |
1142 | va_end (args); |
1143 | } | |
1144 | ||
1145 | void | |
1146 | xvasprintf (char **ret, const char *format, va_list ap) | |
1147 | { | |
a552edd9 | 1148 | (*ret) = xstrvprintf (format, ap); |
76995688 AC |
1149 | } |
1150 | ||
e623b504 AC |
1151 | char * |
1152 | xstrvprintf (const char *format, va_list ap) | |
1153 | { | |
1154 | char *ret = NULL; | |
1155 | int status = vasprintf (&ret, format, ap); | |
1156 | /* NULL is returned when there was a memory allocation problem. */ | |
1157 | if (ret == NULL) | |
1158 | nomem (0); | |
1159 | /* A negative status (the printed length) with a non-NULL buffer | |
1160 | should never happen, but just to be sure. */ | |
1161 | if (status < 0) | |
1162 | internal_error (__FILE__, __LINE__, | |
1163 | "vasprintf call failed (errno %d)", errno); | |
1164 | return ret; | |
1165 | } | |
76995688 | 1166 | |
c906108c SS |
1167 | /* My replacement for the read system call. |
1168 | Used like `read' but keeps going if `read' returns too soon. */ | |
1169 | ||
1170 | int | |
fba45db2 | 1171 | myread (int desc, char *addr, int len) |
c906108c | 1172 | { |
52f0bd74 | 1173 | int val; |
c906108c SS |
1174 | int orglen = len; |
1175 | ||
1176 | while (len > 0) | |
1177 | { | |
1178 | val = read (desc, addr, len); | |
1179 | if (val < 0) | |
1180 | return val; | |
1181 | if (val == 0) | |
1182 | return orglen - len; | |
1183 | len -= val; | |
1184 | addr += val; | |
1185 | } | |
1186 | return orglen; | |
1187 | } | |
1188 | \f | |
1189 | /* Make a copy of the string at PTR with SIZE characters | |
1190 | (and add a null character at the end in the copy). | |
1191 | Uses malloc to get the space. Returns the address of the copy. */ | |
1192 | ||
1193 | char * | |
5565b556 | 1194 | savestring (const char *ptr, size_t size) |
c906108c | 1195 | { |
52f0bd74 | 1196 | char *p = (char *) xmalloc (size + 1); |
c906108c SS |
1197 | memcpy (p, ptr, size); |
1198 | p[size] = 0; | |
1199 | return p; | |
1200 | } | |
1201 | ||
c906108c | 1202 | void |
aa1ee363 | 1203 | print_spaces (int n, struct ui_file *file) |
c906108c | 1204 | { |
392a587b | 1205 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1206 | } |
1207 | ||
1208 | /* Print a host address. */ | |
1209 | ||
1210 | void | |
ac16bf07 | 1211 | gdb_print_host_address (const void *addr, struct ui_file *stream) |
c906108c SS |
1212 | { |
1213 | ||
1214 | /* We could use the %p conversion specifier to fprintf if we had any | |
1215 | way of knowing whether this host supports it. But the following | |
1216 | should work on the Alpha and on 32 bit machines. */ | |
1217 | ||
c5aa993b | 1218 | fprintf_filtered (stream, "0x%lx", (unsigned long) addr); |
c906108c SS |
1219 | } |
1220 | ||
1221 | /* Ask user a y-or-n question and return 1 iff answer is yes. | |
1222 | Takes three args which are given to printf to print the question. | |
1223 | The first, a control string, should end in "? ". | |
1224 | It should not say how to answer, because we do that. */ | |
1225 | ||
1226 | /* VARARGS */ | |
1227 | int | |
8731e58e | 1228 | query (const char *ctlstr, ...) |
c906108c SS |
1229 | { |
1230 | va_list args; | |
52f0bd74 AC |
1231 | int answer; |
1232 | int ans2; | |
c906108c SS |
1233 | int retval; |
1234 | ||
9a4105ab | 1235 | if (deprecated_query_hook) |
c906108c | 1236 | { |
3e6bb910 | 1237 | va_start (args, ctlstr); |
9a4105ab | 1238 | return deprecated_query_hook (ctlstr, args); |
c906108c SS |
1239 | } |
1240 | ||
1241 | /* Automatically answer "yes" if input is not from a terminal. */ | |
1242 | if (!input_from_terminal_p ()) | |
1243 | return 1; | |
c906108c SS |
1244 | |
1245 | while (1) | |
1246 | { | |
1247 | wrap_here (""); /* Flush any buffered output */ | |
1248 | gdb_flush (gdb_stdout); | |
1249 | ||
1250 | if (annotation_level > 1) | |
1251 | printf_filtered ("\n\032\032pre-query\n"); | |
1252 | ||
3e6bb910 | 1253 | va_start (args, ctlstr); |
c906108c | 1254 | vfprintf_filtered (gdb_stdout, ctlstr, args); |
3e6bb910 | 1255 | va_end (args); |
c906108c SS |
1256 | printf_filtered ("(y or n) "); |
1257 | ||
1258 | if (annotation_level > 1) | |
1259 | printf_filtered ("\n\032\032query\n"); | |
1260 | ||
c5aa993b | 1261 | wrap_here (""); |
c906108c SS |
1262 | gdb_flush (gdb_stdout); |
1263 | ||
37767e42 | 1264 | answer = fgetc (stdin); |
c906108c SS |
1265 | clearerr (stdin); /* in case of C-d */ |
1266 | if (answer == EOF) /* C-d */ | |
c5aa993b | 1267 | { |
c906108c SS |
1268 | retval = 1; |
1269 | break; | |
1270 | } | |
1271 | /* Eat rest of input line, to EOF or newline */ | |
37767e42 | 1272 | if (answer != '\n') |
c5aa993b | 1273 | do |
c906108c | 1274 | { |
8731e58e | 1275 | ans2 = fgetc (stdin); |
c906108c SS |
1276 | clearerr (stdin); |
1277 | } | |
c5aa993b | 1278 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); |
c906108c SS |
1279 | |
1280 | if (answer >= 'a') | |
1281 | answer -= 040; | |
1282 | if (answer == 'Y') | |
1283 | { | |
1284 | retval = 1; | |
1285 | break; | |
1286 | } | |
1287 | if (answer == 'N') | |
1288 | { | |
1289 | retval = 0; | |
1290 | break; | |
1291 | } | |
1292 | printf_filtered ("Please answer y or n.\n"); | |
1293 | } | |
1294 | ||
1295 | if (annotation_level > 1) | |
1296 | printf_filtered ("\n\032\032post-query\n"); | |
1297 | return retval; | |
1298 | } | |
c906108c | 1299 | \f |
c5aa993b | 1300 | |
cbdeadca JJ |
1301 | /* This function supports the nquery() and yquery() functions. |
1302 | Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1303 | answer is yes, or default the answer to the specified default. | |
1304 | DEFCHAR is either 'y' or 'n' and refers to the default answer. | |
1305 | CTLSTR is the control string and should end in "? ". It should | |
1306 | not say how to answer, because we do that. | |
1307 | ARGS are the arguments passed along with the CTLSTR argument to | |
1308 | printf. */ | |
1309 | ||
1310 | static int | |
1311 | defaulted_query (const char *ctlstr, const char defchar, va_list args) | |
1312 | { | |
1313 | int answer; | |
1314 | int ans2; | |
1315 | int retval; | |
1316 | int def_value; | |
1317 | char def_answer, not_def_answer; | |
1318 | char *y_string, *n_string; | |
1319 | ||
1320 | /* Set up according to which answer is the default. */ | |
1321 | if (defchar == 'y') | |
1322 | { | |
1323 | def_value = 1; | |
1324 | def_answer = 'Y'; | |
1325 | not_def_answer = 'N'; | |
1326 | y_string = "[y]"; | |
1327 | n_string = "n"; | |
1328 | } | |
1329 | else | |
1330 | { | |
1331 | def_value = 0; | |
1332 | def_answer = 'N'; | |
1333 | not_def_answer = 'Y'; | |
1334 | y_string = "y"; | |
1335 | n_string = "[n]"; | |
1336 | } | |
1337 | ||
9a4105ab | 1338 | if (deprecated_query_hook) |
cbdeadca | 1339 | { |
9a4105ab | 1340 | return deprecated_query_hook (ctlstr, args); |
cbdeadca JJ |
1341 | } |
1342 | ||
1343 | /* Automatically answer default value if input is not from a terminal. */ | |
1344 | if (!input_from_terminal_p ()) | |
1345 | return def_value; | |
1346 | ||
1347 | while (1) | |
1348 | { | |
1349 | wrap_here (""); /* Flush any buffered output */ | |
1350 | gdb_flush (gdb_stdout); | |
1351 | ||
1352 | if (annotation_level > 1) | |
7b6be525 | 1353 | printf_filtered ("\n\032\032pre-query\n"); |
cbdeadca JJ |
1354 | |
1355 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1356 | printf_filtered ("(%s or %s) ", y_string, n_string); | |
1357 | ||
1358 | if (annotation_level > 1) | |
7b6be525 | 1359 | printf_filtered ("\n\032\032query\n"); |
cbdeadca JJ |
1360 | |
1361 | wrap_here (""); | |
1362 | gdb_flush (gdb_stdout); | |
1363 | ||
1364 | answer = fgetc (stdin); | |
1365 | clearerr (stdin); /* in case of C-d */ | |
1366 | if (answer == EOF) /* C-d */ | |
1367 | { | |
1368 | retval = def_value; | |
1369 | break; | |
1370 | } | |
1371 | /* Eat rest of input line, to EOF or newline */ | |
1372 | if (answer != '\n') | |
1373 | do | |
1374 | { | |
1375 | ans2 = fgetc (stdin); | |
1376 | clearerr (stdin); | |
1377 | } | |
1378 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); | |
1379 | ||
1380 | if (answer >= 'a') | |
1381 | answer -= 040; | |
1382 | /* Check answer. For the non-default, the user must specify | |
1383 | the non-default explicitly. */ | |
1384 | if (answer == not_def_answer) | |
1385 | { | |
1386 | retval = !def_value; | |
1387 | break; | |
1388 | } | |
1389 | /* Otherwise, for the default, the user may either specify | |
1390 | the required input or have it default by entering nothing. */ | |
1391 | if (answer == def_answer || answer == '\n' || | |
1392 | answer == '\r' || answer == EOF) | |
1393 | { | |
1394 | retval = def_value; | |
1395 | break; | |
1396 | } | |
1397 | /* Invalid entries are not defaulted and require another selection. */ | |
1398 | printf_filtered ("Please answer %s or %s.\n", | |
1399 | y_string, n_string); | |
1400 | } | |
1401 | ||
1402 | if (annotation_level > 1) | |
7b6be525 | 1403 | printf_filtered ("\n\032\032post-query\n"); |
cbdeadca JJ |
1404 | return retval; |
1405 | } | |
1406 | \f | |
1407 | ||
1408 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1409 | answer is yes, or 0 if answer is defaulted. | |
1410 | Takes three args which are given to printf to print the question. | |
1411 | The first, a control string, should end in "? ". | |
1412 | It should not say how to answer, because we do that. */ | |
1413 | ||
1414 | int | |
1415 | nquery (const char *ctlstr, ...) | |
1416 | { | |
1417 | va_list args; | |
1418 | ||
1419 | va_start (args, ctlstr); | |
1420 | return defaulted_query (ctlstr, 'n', args); | |
1421 | va_end (args); | |
1422 | } | |
1423 | ||
1424 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1425 | answer is yes, or 1 if answer is defaulted. | |
1426 | Takes three args which are given to printf to print the question. | |
1427 | The first, a control string, should end in "? ". | |
1428 | It should not say how to answer, because we do that. */ | |
1429 | ||
1430 | int | |
1431 | yquery (const char *ctlstr, ...) | |
1432 | { | |
1433 | va_list args; | |
1434 | ||
1435 | va_start (args, ctlstr); | |
1436 | return defaulted_query (ctlstr, 'y', args); | |
1437 | va_end (args); | |
1438 | } | |
1439 | ||
234b45d4 KB |
1440 | /* Print an error message saying that we couldn't make sense of a |
1441 | \^mumble sequence in a string or character constant. START and END | |
1442 | indicate a substring of some larger string that contains the | |
1443 | erroneous backslash sequence, missing the initial backslash. */ | |
1444 | static NORETURN int | |
1445 | no_control_char_error (const char *start, const char *end) | |
1446 | { | |
1447 | int len = end - start; | |
1448 | char *copy = alloca (end - start + 1); | |
1449 | ||
1450 | memcpy (copy, start, len); | |
1451 | copy[len] = '\0'; | |
1452 | ||
1453 | error ("There is no control character `\\%s' in the `%s' character set.", | |
8731e58e | 1454 | copy, target_charset ()); |
234b45d4 KB |
1455 | } |
1456 | ||
c906108c SS |
1457 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1458 | containing a pointer to the string to parse. That pointer | |
1459 | should point to the character after the \. That pointer | |
1460 | is updated past the characters we use. The value of the | |
1461 | escape sequence is returned. | |
1462 | ||
1463 | A negative value means the sequence \ newline was seen, | |
1464 | which is supposed to be equivalent to nothing at all. | |
1465 | ||
1466 | If \ is followed by a null character, we return a negative | |
1467 | value and leave the string pointer pointing at the null character. | |
1468 | ||
1469 | If \ is followed by 000, we return 0 and leave the string pointer | |
1470 | after the zeros. A value of 0 does not mean end of string. */ | |
1471 | ||
1472 | int | |
fba45db2 | 1473 | parse_escape (char **string_ptr) |
c906108c | 1474 | { |
234b45d4 | 1475 | int target_char; |
52f0bd74 | 1476 | int c = *(*string_ptr)++; |
234b45d4 KB |
1477 | if (c_parse_backslash (c, &target_char)) |
1478 | return target_char; | |
8731e58e AC |
1479 | else |
1480 | switch (c) | |
234b45d4 | 1481 | { |
8731e58e AC |
1482 | case '\n': |
1483 | return -2; | |
1484 | case 0: | |
1485 | (*string_ptr)--; | |
1486 | return 0; | |
1487 | case '^': | |
1488 | { | |
1489 | /* Remember where this escape sequence started, for reporting | |
1490 | errors. */ | |
1491 | char *sequence_start_pos = *string_ptr - 1; | |
234b45d4 | 1492 | |
8731e58e AC |
1493 | c = *(*string_ptr)++; |
1494 | ||
1495 | if (c == '?') | |
1496 | { | |
1497 | /* XXXCHARSET: What is `delete' in the host character set? */ | |
1498 | c = 0177; | |
1499 | ||
1500 | if (!host_char_to_target (c, &target_char)) | |
1501 | error ("There is no character corresponding to `Delete' " | |
1502 | "in the target character set `%s'.", host_charset ()); | |
1503 | ||
1504 | return target_char; | |
1505 | } | |
1506 | else if (c == '\\') | |
1507 | target_char = parse_escape (string_ptr); | |
1508 | else | |
1509 | { | |
1510 | if (!host_char_to_target (c, &target_char)) | |
1511 | no_control_char_error (sequence_start_pos, *string_ptr); | |
1512 | } | |
1513 | ||
1514 | /* Now target_char is something like `c', and we want to find | |
1515 | its control-character equivalent. */ | |
1516 | if (!target_char_to_control_char (target_char, &target_char)) | |
1517 | no_control_char_error (sequence_start_pos, *string_ptr); | |
1518 | ||
1519 | return target_char; | |
1520 | } | |
1521 | ||
1522 | /* XXXCHARSET: we need to use isdigit and value-of-digit | |
1523 | methods of the host character set here. */ | |
1524 | ||
1525 | case '0': | |
1526 | case '1': | |
1527 | case '2': | |
1528 | case '3': | |
1529 | case '4': | |
1530 | case '5': | |
1531 | case '6': | |
1532 | case '7': | |
1533 | { | |
aa1ee363 AC |
1534 | int i = c - '0'; |
1535 | int count = 0; | |
8731e58e AC |
1536 | while (++count < 3) |
1537 | { | |
5cb316ef AC |
1538 | c = (**string_ptr); |
1539 | if (c >= '0' && c <= '7') | |
8731e58e | 1540 | { |
5cb316ef | 1541 | (*string_ptr)++; |
8731e58e AC |
1542 | i *= 8; |
1543 | i += c - '0'; | |
1544 | } | |
1545 | else | |
1546 | { | |
8731e58e AC |
1547 | break; |
1548 | } | |
1549 | } | |
1550 | return i; | |
1551 | } | |
1552 | default: | |
1553 | if (!host_char_to_target (c, &target_char)) | |
1554 | error | |
1555 | ("The escape sequence `\%c' is equivalent to plain `%c', which" | |
1556 | " has no equivalent\n" "in the `%s' character set.", c, c, | |
1557 | target_charset ()); | |
1558 | return target_char; | |
c906108c | 1559 | } |
c906108c SS |
1560 | } |
1561 | \f | |
1562 | /* Print the character C on STREAM as part of the contents of a literal | |
1563 | string whose delimiter is QUOTER. Note that this routine should only | |
1564 | be call for printing things which are independent of the language | |
1565 | of the program being debugged. */ | |
1566 | ||
43e526b9 | 1567 | static void |
74f832da KB |
1568 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
1569 | void (*do_fprintf) (struct ui_file *, const char *, ...), | |
1570 | struct ui_file *stream, int quoter) | |
c906108c SS |
1571 | { |
1572 | ||
1573 | c &= 0xFF; /* Avoid sign bit follies */ | |
1574 | ||
c5aa993b JM |
1575 | if (c < 0x20 || /* Low control chars */ |
1576 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1577 | (sevenbit_strings && c >= 0x80)) | |
1578 | { /* high order bit set */ | |
1579 | switch (c) | |
1580 | { | |
1581 | case '\n': | |
43e526b9 | 1582 | do_fputs ("\\n", stream); |
c5aa993b JM |
1583 | break; |
1584 | case '\b': | |
43e526b9 | 1585 | do_fputs ("\\b", stream); |
c5aa993b JM |
1586 | break; |
1587 | case '\t': | |
43e526b9 | 1588 | do_fputs ("\\t", stream); |
c5aa993b JM |
1589 | break; |
1590 | case '\f': | |
43e526b9 | 1591 | do_fputs ("\\f", stream); |
c5aa993b JM |
1592 | break; |
1593 | case '\r': | |
43e526b9 | 1594 | do_fputs ("\\r", stream); |
c5aa993b JM |
1595 | break; |
1596 | case '\033': | |
43e526b9 | 1597 | do_fputs ("\\e", stream); |
c5aa993b JM |
1598 | break; |
1599 | case '\007': | |
43e526b9 | 1600 | do_fputs ("\\a", stream); |
c5aa993b JM |
1601 | break; |
1602 | default: | |
43e526b9 | 1603 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1604 | break; |
1605 | } | |
1606 | } | |
1607 | else | |
1608 | { | |
1609 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1610 | do_fputs ("\\", stream); |
1611 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1612 | } |
c906108c | 1613 | } |
43e526b9 JM |
1614 | |
1615 | /* Print the character C on STREAM as part of the contents of a | |
1616 | literal string whose delimiter is QUOTER. Note that these routines | |
1617 | should only be call for printing things which are independent of | |
1618 | the language of the program being debugged. */ | |
1619 | ||
1620 | void | |
fba45db2 | 1621 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1622 | { |
1623 | while (*str) | |
1624 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1625 | } | |
1626 | ||
1627 | void | |
fba45db2 | 1628 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1629 | { |
1630 | while (*str) | |
1631 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1632 | } | |
1633 | ||
1634 | void | |
8731e58e AC |
1635 | fputstrn_unfiltered (const char *str, int n, int quoter, |
1636 | struct ui_file *stream) | |
43e526b9 JM |
1637 | { |
1638 | int i; | |
1639 | for (i = 0; i < n; i++) | |
1640 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1641 | } | |
c906108c | 1642 | \f |
c5aa993b | 1643 | |
c906108c SS |
1644 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1645 | static unsigned int lines_per_page; | |
eb0d3137 | 1646 | |
cbfbd72a | 1647 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1648 | static unsigned int chars_per_line; |
eb0d3137 | 1649 | |
c906108c SS |
1650 | /* Current count of lines printed on this page, chars on this line. */ |
1651 | static unsigned int lines_printed, chars_printed; | |
1652 | ||
1653 | /* Buffer and start column of buffered text, for doing smarter word- | |
1654 | wrapping. When someone calls wrap_here(), we start buffering output | |
1655 | that comes through fputs_filtered(). If we see a newline, we just | |
1656 | spit it out and forget about the wrap_here(). If we see another | |
1657 | wrap_here(), we spit it out and remember the newer one. If we see | |
1658 | the end of the line, we spit out a newline, the indent, and then | |
1659 | the buffered output. */ | |
1660 | ||
1661 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1662 | are waiting to be output (they have already been counted in chars_printed). | |
1663 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1664 | static char *wrap_buffer; | |
1665 | ||
1666 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1667 | static char *wrap_pointer; | |
1668 | ||
1669 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1670 | is non-zero. */ | |
1671 | static char *wrap_indent; | |
1672 | ||
1673 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1674 | is not in effect. */ | |
1675 | static int wrap_column; | |
c906108c | 1676 | \f |
c5aa993b | 1677 | |
eb0d3137 MK |
1678 | /* Inialize the number of lines per page and chars per line. */ |
1679 | ||
c906108c | 1680 | void |
fba45db2 | 1681 | init_page_info (void) |
c906108c SS |
1682 | { |
1683 | #if defined(TUI) | |
5ecb1806 | 1684 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1685 | #endif |
1686 | { | |
eb0d3137 | 1687 | int rows, cols; |
c906108c | 1688 | |
ec145965 EZ |
1689 | #if defined(__GO32__) |
1690 | rows = ScreenRows (); | |
1691 | cols = ScreenCols (); | |
1692 | lines_per_page = rows; | |
1693 | chars_per_line = cols; | |
1694 | #else | |
eb0d3137 MK |
1695 | /* Make sure Readline has initialized its terminal settings. */ |
1696 | rl_reset_terminal (NULL); | |
c906108c | 1697 | |
eb0d3137 MK |
1698 | /* Get the screen size from Readline. */ |
1699 | rl_get_screen_size (&rows, &cols); | |
1700 | lines_per_page = rows; | |
1701 | chars_per_line = cols; | |
c906108c | 1702 | |
eb0d3137 MK |
1703 | /* Readline should have fetched the termcap entry for us. */ |
1704 | if (tgetnum ("li") < 0 || getenv ("EMACS")) | |
1705 | { | |
1706 | /* The number of lines per page is not mentioned in the | |
1707 | terminal description. This probably means that paging is | |
1708 | not useful (e.g. emacs shell window), so disable paging. */ | |
1709 | lines_per_page = UINT_MAX; | |
1710 | } | |
c906108c | 1711 | |
eb0d3137 | 1712 | /* FIXME: Get rid of this junk. */ |
c906108c | 1713 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) |
c906108c SS |
1714 | SIGWINCH_HANDLER (SIGWINCH); |
1715 | #endif | |
eb0d3137 | 1716 | |
c906108c | 1717 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1718 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1719 | lines_per_page = UINT_MAX; |
eb0d3137 | 1720 | #endif |
ec145965 | 1721 | } |
eb0d3137 MK |
1722 | |
1723 | set_screen_size (); | |
c5aa993b | 1724 | set_width (); |
c906108c SS |
1725 | } |
1726 | ||
eb0d3137 MK |
1727 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1728 | ||
1729 | static void | |
1730 | set_screen_size (void) | |
1731 | { | |
1732 | int rows = lines_per_page; | |
1733 | int cols = chars_per_line; | |
1734 | ||
1735 | if (rows <= 0) | |
1736 | rows = INT_MAX; | |
1737 | ||
1738 | if (cols <= 0) | |
1739 | rl_get_screen_size (NULL, &cols); | |
1740 | ||
1741 | /* Update Readline's idea of the terminal size. */ | |
1742 | rl_set_screen_size (rows, cols); | |
1743 | } | |
1744 | ||
1745 | /* Reinitialize WRAP_BUFFER according to the current value of | |
1746 | CHARS_PER_LINE. */ | |
1747 | ||
c906108c | 1748 | static void |
fba45db2 | 1749 | set_width (void) |
c906108c SS |
1750 | { |
1751 | if (chars_per_line == 0) | |
c5aa993b | 1752 | init_page_info (); |
c906108c SS |
1753 | |
1754 | if (!wrap_buffer) | |
1755 | { | |
1756 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1757 | wrap_buffer[0] = '\0'; | |
1758 | } | |
1759 | else | |
1760 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 1761 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
1762 | } |
1763 | ||
c5aa993b | 1764 | static void |
fba45db2 | 1765 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1766 | { |
eb0d3137 | 1767 | set_screen_size (); |
c906108c SS |
1768 | set_width (); |
1769 | } | |
1770 | ||
eb0d3137 MK |
1771 | static void |
1772 | set_height_command (char *args, int from_tty, struct cmd_list_element *c) | |
1773 | { | |
1774 | set_screen_size (); | |
1775 | } | |
1776 | ||
c906108c SS |
1777 | /* Wait, so the user can read what's on the screen. Prompt the user |
1778 | to continue by pressing RETURN. */ | |
1779 | ||
1780 | static void | |
fba45db2 | 1781 | prompt_for_continue (void) |
c906108c SS |
1782 | { |
1783 | char *ignore; | |
1784 | char cont_prompt[120]; | |
1785 | ||
1786 | if (annotation_level > 1) | |
1787 | printf_unfiltered ("\n\032\032pre-prompt-for-continue\n"); | |
1788 | ||
1789 | strcpy (cont_prompt, | |
1790 | "---Type <return> to continue, or q <return> to quit---"); | |
1791 | if (annotation_level > 1) | |
1792 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1793 | ||
1794 | /* We must do this *before* we call gdb_readline, else it will eventually | |
1795 | call us -- thinking that we're trying to print beyond the end of the | |
1796 | screen. */ | |
1797 | reinitialize_more_filter (); | |
1798 | ||
1799 | immediate_quit++; | |
1800 | /* On a real operating system, the user can quit with SIGINT. | |
1801 | But not on GO32. | |
1802 | ||
1803 | 'q' is provided on all systems so users don't have to change habits | |
1804 | from system to system, and because telling them what to do in | |
1805 | the prompt is more user-friendly than expecting them to think of | |
1806 | SIGINT. */ | |
1807 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
1808 | whereas control-C to gdb_readline will cause the user to get dumped | |
1809 | out to DOS. */ | |
b4f5539f | 1810 | ignore = gdb_readline_wrapper (cont_prompt); |
c906108c SS |
1811 | |
1812 | if (annotation_level > 1) | |
1813 | printf_unfiltered ("\n\032\032post-prompt-for-continue\n"); | |
1814 | ||
1815 | if (ignore) | |
1816 | { | |
1817 | char *p = ignore; | |
1818 | while (*p == ' ' || *p == '\t') | |
1819 | ++p; | |
1820 | if (p[0] == 'q') | |
362646f5 | 1821 | async_request_quit (0); |
b8c9b27d | 1822 | xfree (ignore); |
c906108c SS |
1823 | } |
1824 | immediate_quit--; | |
1825 | ||
1826 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1827 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1828 | reinitialize_more_filter (); | |
1829 | ||
1830 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ | |
1831 | } | |
1832 | ||
1833 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
1834 | ||
1835 | void | |
fba45db2 | 1836 | reinitialize_more_filter (void) |
c906108c SS |
1837 | { |
1838 | lines_printed = 0; | |
1839 | chars_printed = 0; | |
1840 | } | |
1841 | ||
1842 | /* Indicate that if the next sequence of characters overflows the line, | |
1843 | a newline should be inserted here rather than when it hits the end. | |
1844 | If INDENT is non-null, it is a string to be printed to indent the | |
1845 | wrapped part on the next line. INDENT must remain accessible until | |
1846 | the next call to wrap_here() or until a newline is printed through | |
1847 | fputs_filtered(). | |
1848 | ||
1849 | If the line is already overfull, we immediately print a newline and | |
1850 | the indentation, and disable further wrapping. | |
1851 | ||
1852 | If we don't know the width of lines, but we know the page height, | |
1853 | we must not wrap words, but should still keep track of newlines | |
1854 | that were explicitly printed. | |
1855 | ||
1856 | INDENT should not contain tabs, as that will mess up the char count | |
1857 | on the next line. FIXME. | |
1858 | ||
1859 | This routine is guaranteed to force out any output which has been | |
1860 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1861 | used to force out output from the wrap_buffer. */ | |
1862 | ||
1863 | void | |
fba45db2 | 1864 | wrap_here (char *indent) |
c906108c SS |
1865 | { |
1866 | /* This should have been allocated, but be paranoid anyway. */ | |
1867 | if (!wrap_buffer) | |
e1e9e218 | 1868 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
1869 | |
1870 | if (wrap_buffer[0]) | |
1871 | { | |
1872 | *wrap_pointer = '\0'; | |
1873 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1874 | } | |
1875 | wrap_pointer = wrap_buffer; | |
1876 | wrap_buffer[0] = '\0'; | |
c5aa993b | 1877 | if (chars_per_line == UINT_MAX) /* No line overflow checking */ |
c906108c SS |
1878 | { |
1879 | wrap_column = 0; | |
1880 | } | |
1881 | else if (chars_printed >= chars_per_line) | |
1882 | { | |
1883 | puts_filtered ("\n"); | |
1884 | if (indent != NULL) | |
1885 | puts_filtered (indent); | |
1886 | wrap_column = 0; | |
1887 | } | |
1888 | else | |
1889 | { | |
1890 | wrap_column = chars_printed; | |
1891 | if (indent == NULL) | |
1892 | wrap_indent = ""; | |
1893 | else | |
1894 | wrap_indent = indent; | |
1895 | } | |
1896 | } | |
1897 | ||
4a351cef AF |
1898 | /* Print input string to gdb_stdout, filtered, with wrap, |
1899 | arranging strings in columns of n chars. String can be | |
1900 | right or left justified in the column. Never prints | |
1901 | trailing spaces. String should never be longer than | |
1902 | width. FIXME: this could be useful for the EXAMINE | |
1903 | command, which currently doesn't tabulate very well */ | |
1904 | ||
1905 | void | |
1906 | puts_filtered_tabular (char *string, int width, int right) | |
1907 | { | |
1908 | int spaces = 0; | |
1909 | int stringlen; | |
1910 | char *spacebuf; | |
1911 | ||
1912 | gdb_assert (chars_per_line > 0); | |
1913 | if (chars_per_line == UINT_MAX) | |
1914 | { | |
1915 | fputs_filtered (string, gdb_stdout); | |
1916 | fputs_filtered ("\n", gdb_stdout); | |
1917 | return; | |
1918 | } | |
1919 | ||
1920 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
1921 | fputs_filtered ("\n", gdb_stdout); | |
1922 | ||
1923 | if (width >= chars_per_line) | |
1924 | width = chars_per_line - 1; | |
1925 | ||
1926 | stringlen = strlen (string); | |
1927 | ||
1928 | if (chars_printed > 0) | |
1929 | spaces = width - (chars_printed - 1) % width - 1; | |
1930 | if (right) | |
1931 | spaces += width - stringlen; | |
1932 | ||
1933 | spacebuf = alloca (spaces + 1); | |
1934 | spacebuf[spaces] = '\0'; | |
1935 | while (spaces--) | |
1936 | spacebuf[spaces] = ' '; | |
1937 | ||
1938 | fputs_filtered (spacebuf, gdb_stdout); | |
1939 | fputs_filtered (string, gdb_stdout); | |
1940 | } | |
1941 | ||
1942 | ||
c906108c SS |
1943 | /* Ensure that whatever gets printed next, using the filtered output |
1944 | commands, starts at the beginning of the line. I.E. if there is | |
1945 | any pending output for the current line, flush it and start a new | |
1946 | line. Otherwise do nothing. */ | |
1947 | ||
1948 | void | |
fba45db2 | 1949 | begin_line (void) |
c906108c SS |
1950 | { |
1951 | if (chars_printed > 0) | |
1952 | { | |
1953 | puts_filtered ("\n"); | |
1954 | } | |
1955 | } | |
1956 | ||
ac9a91a7 | 1957 | |
c906108c SS |
1958 | /* Like fputs but if FILTER is true, pause after every screenful. |
1959 | ||
1960 | Regardless of FILTER can wrap at points other than the final | |
1961 | character of a line. | |
1962 | ||
1963 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
1964 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
1965 | anything. | |
1966 | ||
1967 | Note that a longjmp to top level may occur in this routine (only if | |
1968 | FILTER is true) (since prompt_for_continue may do so) so this | |
1969 | routine should not be called when cleanups are not in place. */ | |
1970 | ||
1971 | static void | |
fba45db2 KB |
1972 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
1973 | int filter) | |
c906108c SS |
1974 | { |
1975 | const char *lineptr; | |
1976 | ||
1977 | if (linebuffer == 0) | |
1978 | return; | |
1979 | ||
1980 | /* Don't do any filtering if it is disabled. */ | |
7a292a7a | 1981 | if ((stream != gdb_stdout) || !pagination_enabled |
c5aa993b | 1982 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX)) |
c906108c SS |
1983 | { |
1984 | fputs_unfiltered (linebuffer, stream); | |
1985 | return; | |
1986 | } | |
1987 | ||
1988 | /* Go through and output each character. Show line extension | |
1989 | when this is necessary; prompt user for new page when this is | |
1990 | necessary. */ | |
c5aa993b | 1991 | |
c906108c SS |
1992 | lineptr = linebuffer; |
1993 | while (*lineptr) | |
1994 | { | |
1995 | /* Possible new page. */ | |
8731e58e | 1996 | if (filter && (lines_printed >= lines_per_page - 1)) |
c906108c SS |
1997 | prompt_for_continue (); |
1998 | ||
1999 | while (*lineptr && *lineptr != '\n') | |
2000 | { | |
2001 | /* Print a single line. */ | |
2002 | if (*lineptr == '\t') | |
2003 | { | |
2004 | if (wrap_column) | |
2005 | *wrap_pointer++ = '\t'; | |
2006 | else | |
2007 | fputc_unfiltered ('\t', stream); | |
2008 | /* Shifting right by 3 produces the number of tab stops | |
2009 | we have already passed, and then adding one and | |
c5aa993b | 2010 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
2011 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
2012 | lineptr++; | |
2013 | } | |
2014 | else | |
2015 | { | |
2016 | if (wrap_column) | |
2017 | *wrap_pointer++ = *lineptr; | |
2018 | else | |
c5aa993b | 2019 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
2020 | chars_printed++; |
2021 | lineptr++; | |
2022 | } | |
c5aa993b | 2023 | |
c906108c SS |
2024 | if (chars_printed >= chars_per_line) |
2025 | { | |
2026 | unsigned int save_chars = chars_printed; | |
2027 | ||
2028 | chars_printed = 0; | |
2029 | lines_printed++; | |
2030 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
2031 | if chars_per_line is right, we probably just overflowed |
2032 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
2033 | if (wrap_column) |
2034 | fputc_unfiltered ('\n', stream); | |
2035 | ||
2036 | /* Possible new page. */ | |
2037 | if (lines_printed >= lines_per_page - 1) | |
2038 | prompt_for_continue (); | |
2039 | ||
2040 | /* Now output indentation and wrapped string */ | |
2041 | if (wrap_column) | |
2042 | { | |
2043 | fputs_unfiltered (wrap_indent, stream); | |
8731e58e | 2044 | *wrap_pointer = '\0'; /* Null-terminate saved stuff */ |
c5aa993b | 2045 | fputs_unfiltered (wrap_buffer, stream); /* and eject it */ |
c906108c SS |
2046 | /* FIXME, this strlen is what prevents wrap_indent from |
2047 | containing tabs. However, if we recurse to print it | |
2048 | and count its chars, we risk trouble if wrap_indent is | |
2049 | longer than (the user settable) chars_per_line. | |
2050 | Note also that this can set chars_printed > chars_per_line | |
2051 | if we are printing a long string. */ | |
2052 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 2053 | + (save_chars - wrap_column); |
c906108c SS |
2054 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
2055 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
2056 | wrap_column = 0; /* And disable fancy wrap */ |
2057 | } | |
c906108c SS |
2058 | } |
2059 | } | |
2060 | ||
2061 | if (*lineptr == '\n') | |
2062 | { | |
2063 | chars_printed = 0; | |
c5aa993b | 2064 | wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */ |
c906108c SS |
2065 | lines_printed++; |
2066 | fputc_unfiltered ('\n', stream); | |
2067 | lineptr++; | |
2068 | } | |
2069 | } | |
2070 | } | |
2071 | ||
2072 | void | |
fba45db2 | 2073 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
2074 | { |
2075 | fputs_maybe_filtered (linebuffer, stream, 1); | |
2076 | } | |
2077 | ||
2078 | int | |
fba45db2 | 2079 | putchar_unfiltered (int c) |
c906108c | 2080 | { |
11cf8741 | 2081 | char buf = c; |
d9fcf2fb | 2082 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
2083 | return c; |
2084 | } | |
2085 | ||
d1f4cff8 AC |
2086 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
2087 | May return nonlocally. */ | |
2088 | ||
2089 | int | |
2090 | putchar_filtered (int c) | |
2091 | { | |
2092 | return fputc_filtered (c, gdb_stdout); | |
2093 | } | |
2094 | ||
c906108c | 2095 | int |
fba45db2 | 2096 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 2097 | { |
11cf8741 | 2098 | char buf = c; |
d9fcf2fb | 2099 | ui_file_write (stream, &buf, 1); |
c906108c SS |
2100 | return c; |
2101 | } | |
2102 | ||
2103 | int | |
fba45db2 | 2104 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
2105 | { |
2106 | char buf[2]; | |
2107 | ||
2108 | buf[0] = c; | |
2109 | buf[1] = 0; | |
2110 | fputs_filtered (buf, stream); | |
2111 | return c; | |
2112 | } | |
2113 | ||
2114 | /* puts_debug is like fputs_unfiltered, except it prints special | |
2115 | characters in printable fashion. */ | |
2116 | ||
2117 | void | |
fba45db2 | 2118 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
2119 | { |
2120 | int ch; | |
2121 | ||
2122 | /* Print prefix and suffix after each line. */ | |
2123 | static int new_line = 1; | |
2124 | static int return_p = 0; | |
2125 | static char *prev_prefix = ""; | |
2126 | static char *prev_suffix = ""; | |
2127 | ||
2128 | if (*string == '\n') | |
2129 | return_p = 0; | |
2130 | ||
2131 | /* If the prefix is changing, print the previous suffix, a new line, | |
2132 | and the new prefix. */ | |
c5aa993b | 2133 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2134 | { |
9846de1b JM |
2135 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2136 | fputs_unfiltered ("\n", gdb_stdlog); | |
2137 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2138 | } |
2139 | ||
2140 | /* Print prefix if we printed a newline during the previous call. */ | |
2141 | if (new_line) | |
2142 | { | |
2143 | new_line = 0; | |
9846de1b | 2144 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2145 | } |
2146 | ||
2147 | prev_prefix = prefix; | |
2148 | prev_suffix = suffix; | |
2149 | ||
2150 | /* Output characters in a printable format. */ | |
2151 | while ((ch = *string++) != '\0') | |
2152 | { | |
2153 | switch (ch) | |
c5aa993b | 2154 | { |
c906108c SS |
2155 | default: |
2156 | if (isprint (ch)) | |
9846de1b | 2157 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2158 | |
2159 | else | |
9846de1b | 2160 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2161 | break; |
2162 | ||
c5aa993b JM |
2163 | case '\\': |
2164 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2165 | break; | |
2166 | case '\b': | |
2167 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2168 | break; | |
2169 | case '\f': | |
2170 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2171 | break; | |
2172 | case '\n': | |
2173 | new_line = 1; | |
2174 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2175 | break; | |
2176 | case '\r': | |
2177 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2178 | break; | |
2179 | case '\t': | |
2180 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2181 | break; | |
2182 | case '\v': | |
2183 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2184 | break; | |
2185 | } | |
c906108c SS |
2186 | |
2187 | return_p = ch == '\r'; | |
2188 | } | |
2189 | ||
2190 | /* Print suffix if we printed a newline. */ | |
2191 | if (new_line) | |
2192 | { | |
9846de1b JM |
2193 | fputs_unfiltered (suffix, gdb_stdlog); |
2194 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2195 | } |
2196 | } | |
2197 | ||
2198 | ||
2199 | /* Print a variable number of ARGS using format FORMAT. If this | |
2200 | information is going to put the amount written (since the last call | |
2201 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2202 | call prompt_for_continue to get the users permision to continue. | |
2203 | ||
2204 | Unlike fprintf, this function does not return a value. | |
2205 | ||
2206 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2207 | fprintf (takes a stream to write on), and printf (the usual). | |
2208 | ||
2209 | Note also that a longjmp to top level may occur in this routine | |
2210 | (since prompt_for_continue may do so) so this routine should not be | |
2211 | called when cleanups are not in place. */ | |
2212 | ||
2213 | static void | |
fba45db2 KB |
2214 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2215 | va_list args, int filter) | |
c906108c SS |
2216 | { |
2217 | char *linebuffer; | |
2218 | struct cleanup *old_cleanups; | |
2219 | ||
e623b504 | 2220 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2221 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2222 | fputs_maybe_filtered (linebuffer, stream, filter); |
2223 | do_cleanups (old_cleanups); | |
2224 | } | |
2225 | ||
2226 | ||
2227 | void | |
fba45db2 | 2228 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2229 | { |
2230 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2231 | } | |
2232 | ||
2233 | void | |
fba45db2 | 2234 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2235 | { |
2236 | char *linebuffer; | |
2237 | struct cleanup *old_cleanups; | |
2238 | ||
e623b504 | 2239 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2240 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2241 | fputs_unfiltered (linebuffer, stream); |
2242 | do_cleanups (old_cleanups); | |
2243 | } | |
2244 | ||
2245 | void | |
fba45db2 | 2246 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2247 | { |
2248 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2249 | } | |
2250 | ||
2251 | void | |
fba45db2 | 2252 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2253 | { |
2254 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2255 | } | |
2256 | ||
c906108c | 2257 | void |
8731e58e | 2258 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2259 | { |
2260 | va_list args; | |
c906108c | 2261 | va_start (args, format); |
c906108c SS |
2262 | vfprintf_filtered (stream, format, args); |
2263 | va_end (args); | |
2264 | } | |
2265 | ||
c906108c | 2266 | void |
8731e58e | 2267 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2268 | { |
2269 | va_list args; | |
c906108c | 2270 | va_start (args, format); |
c906108c SS |
2271 | vfprintf_unfiltered (stream, format, args); |
2272 | va_end (args); | |
2273 | } | |
2274 | ||
2275 | /* Like fprintf_filtered, but prints its result indented. | |
2276 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2277 | ||
c906108c | 2278 | void |
8731e58e AC |
2279 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2280 | ...) | |
c906108c SS |
2281 | { |
2282 | va_list args; | |
c906108c | 2283 | va_start (args, format); |
c906108c SS |
2284 | print_spaces_filtered (spaces, stream); |
2285 | ||
2286 | vfprintf_filtered (stream, format, args); | |
2287 | va_end (args); | |
2288 | } | |
2289 | ||
2290 | ||
c906108c | 2291 | void |
8731e58e | 2292 | printf_filtered (const char *format, ...) |
c906108c SS |
2293 | { |
2294 | va_list args; | |
c906108c | 2295 | va_start (args, format); |
c906108c SS |
2296 | vfprintf_filtered (gdb_stdout, format, args); |
2297 | va_end (args); | |
2298 | } | |
2299 | ||
2300 | ||
c906108c | 2301 | void |
8731e58e | 2302 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2303 | { |
2304 | va_list args; | |
c906108c | 2305 | va_start (args, format); |
c906108c SS |
2306 | vfprintf_unfiltered (gdb_stdout, format, args); |
2307 | va_end (args); | |
2308 | } | |
2309 | ||
2310 | /* Like printf_filtered, but prints it's result indented. | |
2311 | Called as printfi_filtered (spaces, format, ...); */ | |
2312 | ||
c906108c | 2313 | void |
8731e58e | 2314 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2315 | { |
2316 | va_list args; | |
c906108c | 2317 | va_start (args, format); |
c906108c SS |
2318 | print_spaces_filtered (spaces, gdb_stdout); |
2319 | vfprintf_filtered (gdb_stdout, format, args); | |
2320 | va_end (args); | |
2321 | } | |
2322 | ||
2323 | /* Easy -- but watch out! | |
2324 | ||
2325 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2326 | This one doesn't, and had better not! */ | |
2327 | ||
2328 | void | |
fba45db2 | 2329 | puts_filtered (const char *string) |
c906108c SS |
2330 | { |
2331 | fputs_filtered (string, gdb_stdout); | |
2332 | } | |
2333 | ||
2334 | void | |
fba45db2 | 2335 | puts_unfiltered (const char *string) |
c906108c SS |
2336 | { |
2337 | fputs_unfiltered (string, gdb_stdout); | |
2338 | } | |
2339 | ||
2340 | /* Return a pointer to N spaces and a null. The pointer is good | |
2341 | until the next call to here. */ | |
2342 | char * | |
fba45db2 | 2343 | n_spaces (int n) |
c906108c | 2344 | { |
392a587b JM |
2345 | char *t; |
2346 | static char *spaces = 0; | |
2347 | static int max_spaces = -1; | |
c906108c SS |
2348 | |
2349 | if (n > max_spaces) | |
2350 | { | |
2351 | if (spaces) | |
b8c9b27d | 2352 | xfree (spaces); |
c5aa993b JM |
2353 | spaces = (char *) xmalloc (n + 1); |
2354 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2355 | *--t = ' '; |
2356 | spaces[n] = '\0'; | |
2357 | max_spaces = n; | |
2358 | } | |
2359 | ||
2360 | return spaces + max_spaces - n; | |
2361 | } | |
2362 | ||
2363 | /* Print N spaces. */ | |
2364 | void | |
fba45db2 | 2365 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2366 | { |
2367 | fputs_filtered (n_spaces (n), stream); | |
2368 | } | |
2369 | \f | |
4a351cef | 2370 | /* C++/ObjC demangler stuff. */ |
c906108c | 2371 | |
389e51db AC |
2372 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2373 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2374 | If the name is not mangled, or the language for the name is unknown, or | |
2375 | demangling is off, the name is printed in its "raw" form. */ | |
c906108c SS |
2376 | |
2377 | void | |
8731e58e AC |
2378 | fprintf_symbol_filtered (struct ui_file *stream, char *name, |
2379 | enum language lang, int arg_mode) | |
c906108c SS |
2380 | { |
2381 | char *demangled; | |
2382 | ||
2383 | if (name != NULL) | |
2384 | { | |
2385 | /* If user wants to see raw output, no problem. */ | |
2386 | if (!demangle) | |
2387 | { | |
2388 | fputs_filtered (name, stream); | |
2389 | } | |
2390 | else | |
2391 | { | |
9a3d7dfd | 2392 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2393 | fputs_filtered (demangled ? demangled : name, stream); |
2394 | if (demangled != NULL) | |
2395 | { | |
b8c9b27d | 2396 | xfree (demangled); |
c906108c SS |
2397 | } |
2398 | } | |
2399 | } | |
2400 | } | |
2401 | ||
2402 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2403 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2404 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2405 | |
c906108c SS |
2406 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2407 | This "feature" is useful when searching for matching C++ function names | |
2408 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
2409 | function). */ | |
2410 | ||
2411 | int | |
fba45db2 | 2412 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2413 | { |
2414 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2415 | { | |
2416 | while (isspace (*string1)) | |
2417 | { | |
2418 | string1++; | |
2419 | } | |
2420 | while (isspace (*string2)) | |
2421 | { | |
2422 | string2++; | |
2423 | } | |
2424 | if (*string1 != *string2) | |
2425 | { | |
2426 | break; | |
2427 | } | |
2428 | if (*string1 != '\0') | |
2429 | { | |
2430 | string1++; | |
2431 | string2++; | |
2432 | } | |
2433 | } | |
2434 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2435 | } | |
2de7ced7 | 2436 | |
0fe19209 DC |
2437 | /* This is like strcmp except that it ignores whitespace and treats |
2438 | '(' as the first non-NULL character in terms of ordering. Like | |
2439 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2440 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2441 | according to that ordering. | |
2442 | ||
2443 | If a list is sorted according to this function and if you want to | |
2444 | find names in the list that match some fixed NAME according to | |
2445 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2446 | where this function would put NAME. | |
2447 | ||
2448 | Here are some examples of why using strcmp to sort is a bad idea: | |
2449 | ||
2450 | Whitespace example: | |
2451 | ||
2452 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2453 | we try to do a search for "foo<char*>", strcmp will locate this | |
2454 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2455 | will start looking at strings beginning with "goo", and will never | |
2456 | see the correct match of "foo<char *>". | |
2457 | ||
2458 | Parenthesis example: | |
2459 | ||
2460 | In practice, this is less like to be an issue, but I'll give it a | |
2461 | shot. Let's assume that '$' is a legitimate character to occur in | |
2462 | symbols. (Which may well even be the case on some systems.) Then | |
2463 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2464 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2465 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2466 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2467 | "foo") is false, so it won't proceed to the actual match of | |
2468 | "foo(int)" with "foo". */ | |
2469 | ||
2470 | int | |
2471 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2472 | { | |
2473 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2474 | { | |
2475 | while (isspace (*string1)) | |
2476 | { | |
2477 | string1++; | |
2478 | } | |
2479 | while (isspace (*string2)) | |
2480 | { | |
2481 | string2++; | |
2482 | } | |
2483 | if (*string1 != *string2) | |
2484 | { | |
2485 | break; | |
2486 | } | |
2487 | if (*string1 != '\0') | |
2488 | { | |
2489 | string1++; | |
2490 | string2++; | |
2491 | } | |
2492 | } | |
2493 | ||
2494 | switch (*string1) | |
2495 | { | |
2496 | /* Characters are non-equal unless they're both '\0'; we want to | |
2497 | make sure we get the comparison right according to our | |
2498 | comparison in the cases where one of them is '\0' or '('. */ | |
2499 | case '\0': | |
2500 | if (*string2 == '\0') | |
2501 | return 0; | |
2502 | else | |
2503 | return -1; | |
2504 | case '(': | |
2505 | if (*string2 == '\0') | |
2506 | return 1; | |
2507 | else | |
2508 | return -1; | |
2509 | default: | |
2510 | if (*string2 == '(') | |
2511 | return 1; | |
2512 | else | |
2513 | return *string1 - *string2; | |
2514 | } | |
2515 | } | |
2516 | ||
2de7ced7 DJ |
2517 | /* A simple comparison function with opposite semantics to strcmp. */ |
2518 | ||
2519 | int | |
2520 | streq (const char *lhs, const char *rhs) | |
2521 | { | |
2522 | return !strcmp (lhs, rhs); | |
2523 | } | |
c906108c | 2524 | \f |
c5aa993b | 2525 | |
c906108c | 2526 | /* |
c5aa993b JM |
2527 | ** subset_compare() |
2528 | ** Answer whether string_to_compare is a full or partial match to | |
2529 | ** template_string. The partial match must be in sequence starting | |
2530 | ** at index 0. | |
2531 | */ | |
c906108c | 2532 | int |
fba45db2 | 2533 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
2534 | { |
2535 | int match; | |
8731e58e AC |
2536 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
2537 | && strlen (string_to_compare) <= strlen (template_string)) | |
2538 | match = | |
2539 | (strncmp | |
2540 | (template_string, string_to_compare, strlen (string_to_compare)) == 0); | |
7a292a7a SS |
2541 | else |
2542 | match = 0; | |
2543 | return match; | |
2544 | } | |
c906108c SS |
2545 | |
2546 | ||
a14ed312 | 2547 | static void pagination_on_command (char *arg, int from_tty); |
7a292a7a | 2548 | static void |
fba45db2 | 2549 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
2550 | { |
2551 | pagination_enabled = 1; | |
2552 | } | |
2553 | ||
a14ed312 | 2554 | static void pagination_on_command (char *arg, int from_tty); |
7a292a7a | 2555 | static void |
fba45db2 | 2556 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
2557 | { |
2558 | pagination_enabled = 0; | |
2559 | } | |
c906108c | 2560 | \f |
c5aa993b | 2561 | |
c906108c | 2562 | void |
fba45db2 | 2563 | initialize_utils (void) |
c906108c SS |
2564 | { |
2565 | struct cmd_list_element *c; | |
2566 | ||
eb0d3137 | 2567 | c = add_set_cmd ("width", class_support, var_uinteger, &chars_per_line, |
c5aa993b JM |
2568 | "Set number of characters gdb thinks are in a line.", |
2569 | &setlist); | |
cb1a6d5f | 2570 | deprecated_add_show_from_set (c, &showlist); |
9f60d481 | 2571 | set_cmd_sfunc (c, set_width_command); |
c906108c | 2572 | |
eb0d3137 MK |
2573 | c = add_set_cmd ("height", class_support, var_uinteger, &lines_per_page, |
2574 | "Set number of lines gdb thinks are in a page.", &setlist); | |
cb1a6d5f | 2575 | deprecated_add_show_from_set (c, &showlist); |
eb0d3137 | 2576 | set_cmd_sfunc (c, set_height_command); |
c5aa993b | 2577 | |
c906108c SS |
2578 | init_page_info (); |
2579 | ||
cb1a6d5f | 2580 | deprecated_add_show_from_set |
c5aa993b JM |
2581 | (add_set_cmd ("demangle", class_support, var_boolean, |
2582 | (char *) &demangle, | |
8731e58e AC |
2583 | "Set demangling of encoded C++/ObjC names when displaying symbols.", |
2584 | &setprintlist), &showprintlist); | |
c906108c | 2585 | |
cb1a6d5f | 2586 | deprecated_add_show_from_set |
c906108c | 2587 | (add_set_cmd ("pagination", class_support, |
c5aa993b | 2588 | var_boolean, (char *) &pagination_enabled, |
8731e58e | 2589 | "Set state of pagination.", &setlist), &showlist); |
4261bedc | 2590 | |
c906108c SS |
2591 | if (xdb_commands) |
2592 | { | |
c5aa993b JM |
2593 | add_com ("am", class_support, pagination_on_command, |
2594 | "Enable pagination"); | |
2595 | add_com ("sm", class_support, pagination_off_command, | |
2596 | "Disable pagination"); | |
c906108c SS |
2597 | } |
2598 | ||
cb1a6d5f | 2599 | deprecated_add_show_from_set |
c5aa993b JM |
2600 | (add_set_cmd ("sevenbit-strings", class_support, var_boolean, |
2601 | (char *) &sevenbit_strings, | |
2602 | "Set printing of 8-bit characters in strings as \\nnn.", | |
8731e58e | 2603 | &setprintlist), &showprintlist); |
c906108c | 2604 | |
cb1a6d5f | 2605 | deprecated_add_show_from_set |
c5aa993b JM |
2606 | (add_set_cmd ("asm-demangle", class_support, var_boolean, |
2607 | (char *) &asm_demangle, | |
4a351cef | 2608 | "Set demangling of C++/ObjC names in disassembly listings.", |
8731e58e | 2609 | &setprintlist), &showprintlist); |
c906108c SS |
2610 | } |
2611 | ||
2612 | /* Machine specific function to handle SIGWINCH signal. */ | |
2613 | ||
2614 | #ifdef SIGWINCH_HANDLER_BODY | |
c5aa993b | 2615 | SIGWINCH_HANDLER_BODY |
c906108c | 2616 | #endif |
5683e87a | 2617 | /* print routines to handle variable size regs, etc. */ |
c906108c SS |
2618 | /* temporary storage using circular buffer */ |
2619 | #define NUMCELLS 16 | |
0759e0bf | 2620 | #define CELLSIZE 50 |
c5aa993b | 2621 | static char * |
fba45db2 | 2622 | get_cell (void) |
c906108c SS |
2623 | { |
2624 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b JM |
2625 | static int cell = 0; |
2626 | if (++cell >= NUMCELLS) | |
2627 | cell = 0; | |
c906108c SS |
2628 | return buf[cell]; |
2629 | } | |
2630 | ||
d4f3574e SS |
2631 | int |
2632 | strlen_paddr (void) | |
2633 | { | |
79496e2f | 2634 | return (TARGET_ADDR_BIT / 8 * 2); |
d4f3574e SS |
2635 | } |
2636 | ||
c5aa993b | 2637 | char * |
104c1213 | 2638 | paddr (CORE_ADDR addr) |
c906108c | 2639 | { |
79496e2f | 2640 | return phex (addr, TARGET_ADDR_BIT / 8); |
c906108c SS |
2641 | } |
2642 | ||
c5aa993b | 2643 | char * |
104c1213 | 2644 | paddr_nz (CORE_ADDR addr) |
c906108c | 2645 | { |
79496e2f | 2646 | return phex_nz (addr, TARGET_ADDR_BIT / 8); |
c906108c SS |
2647 | } |
2648 | ||
104c1213 | 2649 | static void |
bb599908 | 2650 | decimal2str (char *paddr_str, char *sign, ULONGEST addr, int width) |
104c1213 JM |
2651 | { |
2652 | /* steal code from valprint.c:print_decimal(). Should this worry | |
2653 | about the real size of addr as the above does? */ | |
2654 | unsigned long temp[3]; | |
2655 | int i = 0; | |
2656 | do | |
2657 | { | |
2658 | temp[i] = addr % (1000 * 1000 * 1000); | |
2659 | addr /= (1000 * 1000 * 1000); | |
2660 | i++; | |
bb599908 | 2661 | width -= 9; |
104c1213 JM |
2662 | } |
2663 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
bb599908 PH |
2664 | width += 9; |
2665 | if (width < 0) | |
2666 | width = 0; | |
104c1213 JM |
2667 | switch (i) |
2668 | { | |
2669 | case 1: | |
bb599908 | 2670 | sprintf (paddr_str, "%s%0*lu", sign, width, temp[0]); |
104c1213 JM |
2671 | break; |
2672 | case 2: | |
bb599908 | 2673 | sprintf (paddr_str, "%s%0*lu%09lu", sign, width, temp[1], temp[0]); |
104c1213 JM |
2674 | break; |
2675 | case 3: | |
bb599908 PH |
2676 | sprintf (paddr_str, "%s%0*lu%09lu%09lu", sign, width, |
2677 | temp[2], temp[1], temp[0]); | |
2678 | break; | |
2679 | default: | |
2680 | internal_error (__FILE__, __LINE__, | |
2681 | "failed internal consistency check"); | |
2682 | } | |
2683 | } | |
2684 | ||
2685 | static void | |
2686 | octal2str (char *paddr_str, ULONGEST addr, int width) | |
2687 | { | |
2688 | unsigned long temp[3]; | |
2689 | int i = 0; | |
2690 | do | |
2691 | { | |
2692 | temp[i] = addr % (0100000 * 0100000); | |
2693 | addr /= (0100000 * 0100000); | |
2694 | i++; | |
2695 | width -= 10; | |
2696 | } | |
2697 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
2698 | width += 10; | |
2699 | if (width < 0) | |
2700 | width = 0; | |
2701 | switch (i) | |
2702 | { | |
2703 | case 1: | |
2704 | if (temp[0] == 0) | |
2705 | sprintf (paddr_str, "%*o", width, 0); | |
2706 | else | |
2707 | sprintf (paddr_str, "0%0*lo", width, temp[0]); | |
2708 | break; | |
2709 | case 2: | |
2710 | sprintf (paddr_str, "0%0*lo%010lo", width, temp[1], temp[0]); | |
2711 | break; | |
2712 | case 3: | |
2713 | sprintf (paddr_str, "0%0*lo%010lo%010lo", width, | |
2714 | temp[2], temp[1], temp[0]); | |
104c1213 JM |
2715 | break; |
2716 | default: | |
8731e58e AC |
2717 | internal_error (__FILE__, __LINE__, |
2718 | "failed internal consistency check"); | |
104c1213 JM |
2719 | } |
2720 | } | |
2721 | ||
2722 | char * | |
2723 | paddr_u (CORE_ADDR addr) | |
2724 | { | |
2725 | char *paddr_str = get_cell (); | |
bb599908 | 2726 | decimal2str (paddr_str, "", addr, 0); |
104c1213 JM |
2727 | return paddr_str; |
2728 | } | |
2729 | ||
2730 | char * | |
2731 | paddr_d (LONGEST addr) | |
2732 | { | |
2733 | char *paddr_str = get_cell (); | |
2734 | if (addr < 0) | |
bb599908 | 2735 | decimal2str (paddr_str, "-", -addr, 0); |
104c1213 | 2736 | else |
bb599908 | 2737 | decimal2str (paddr_str, "", addr, 0); |
104c1213 JM |
2738 | return paddr_str; |
2739 | } | |
2740 | ||
5683e87a AC |
2741 | /* eliminate warning from compiler on 32-bit systems */ |
2742 | static int thirty_two = 32; | |
2743 | ||
104c1213 | 2744 | char * |
5683e87a | 2745 | phex (ULONGEST l, int sizeof_l) |
104c1213 | 2746 | { |
45a1e866 | 2747 | char *str; |
5683e87a | 2748 | switch (sizeof_l) |
104c1213 JM |
2749 | { |
2750 | case 8: | |
45a1e866 | 2751 | str = get_cell (); |
5683e87a AC |
2752 | sprintf (str, "%08lx%08lx", |
2753 | (unsigned long) (l >> thirty_two), | |
2754 | (unsigned long) (l & 0xffffffff)); | |
104c1213 JM |
2755 | break; |
2756 | case 4: | |
45a1e866 | 2757 | str = get_cell (); |
5683e87a | 2758 | sprintf (str, "%08lx", (unsigned long) l); |
104c1213 JM |
2759 | break; |
2760 | case 2: | |
45a1e866 | 2761 | str = get_cell (); |
5683e87a | 2762 | sprintf (str, "%04x", (unsigned short) (l & 0xffff)); |
104c1213 JM |
2763 | break; |
2764 | default: | |
45a1e866 | 2765 | str = phex (l, sizeof (l)); |
5683e87a | 2766 | break; |
104c1213 | 2767 | } |
5683e87a | 2768 | return str; |
104c1213 JM |
2769 | } |
2770 | ||
c5aa993b | 2771 | char * |
5683e87a | 2772 | phex_nz (ULONGEST l, int sizeof_l) |
c906108c | 2773 | { |
faf833ca | 2774 | char *str; |
5683e87a | 2775 | switch (sizeof_l) |
c906108c | 2776 | { |
c5aa993b JM |
2777 | case 8: |
2778 | { | |
5683e87a | 2779 | unsigned long high = (unsigned long) (l >> thirty_two); |
faf833ca | 2780 | str = get_cell (); |
c5aa993b | 2781 | if (high == 0) |
5683e87a | 2782 | sprintf (str, "%lx", (unsigned long) (l & 0xffffffff)); |
c5aa993b | 2783 | else |
8731e58e | 2784 | sprintf (str, "%lx%08lx", high, (unsigned long) (l & 0xffffffff)); |
c906108c | 2785 | break; |
c5aa993b JM |
2786 | } |
2787 | case 4: | |
faf833ca | 2788 | str = get_cell (); |
5683e87a | 2789 | sprintf (str, "%lx", (unsigned long) l); |
c5aa993b JM |
2790 | break; |
2791 | case 2: | |
faf833ca | 2792 | str = get_cell (); |
5683e87a | 2793 | sprintf (str, "%x", (unsigned short) (l & 0xffff)); |
c5aa993b JM |
2794 | break; |
2795 | default: | |
faf833ca | 2796 | str = phex_nz (l, sizeof (l)); |
5683e87a | 2797 | break; |
c906108c | 2798 | } |
5683e87a | 2799 | return str; |
c906108c | 2800 | } |
ac2e2ef7 | 2801 | |
0759e0bf AC |
2802 | /* Converts a LONGEST to a C-format hexadecimal literal and stores it |
2803 | in a static string. Returns a pointer to this string. */ | |
2804 | char * | |
2805 | hex_string (LONGEST num) | |
2806 | { | |
2807 | char *result = get_cell (); | |
2808 | snprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num))); | |
2809 | return result; | |
2810 | } | |
2811 | ||
2812 | /* Converts a LONGEST number to a C-format hexadecimal literal and | |
2813 | stores it in a static string. Returns a pointer to this string | |
2814 | that is valid until the next call. The number is padded on the | |
2815 | left with 0s to at least WIDTH characters. */ | |
2816 | char * | |
2817 | hex_string_custom (LONGEST num, int width) | |
2818 | { | |
2819 | char *result = get_cell (); | |
2820 | char *result_end = result + CELLSIZE - 1; | |
2821 | const char *hex = phex_nz (num, sizeof (num)); | |
2822 | int hex_len = strlen (hex); | |
2823 | ||
2824 | if (hex_len > width) | |
2825 | width = hex_len; | |
2826 | if (width + 2 >= CELLSIZE) | |
2827 | internal_error (__FILE__, __LINE__, | |
2828 | "hex_string_custom: insufficient space to store result"); | |
2829 | ||
2830 | strcpy (result_end - width - 2, "0x"); | |
2831 | memset (result_end - width, '0', width); | |
2832 | strcpy (result_end - hex_len, hex); | |
2833 | return result_end - width - 2; | |
2834 | } | |
ac2e2ef7 | 2835 | |
bb599908 PH |
2836 | /* Convert VAL to a numeral in the given radix. For |
2837 | * radix 10, IS_SIGNED may be true, indicating a signed quantity; | |
2838 | * otherwise VAL is interpreted as unsigned. If WIDTH is supplied, | |
2839 | * it is the minimum width (0-padded if needed). USE_C_FORMAT means | |
2840 | * to use C format in all cases. If it is false, then 'x' | |
2841 | * and 'o' formats do not include a prefix (0x or leading 0). */ | |
2842 | ||
2843 | char * | |
2844 | int_string (LONGEST val, int radix, int is_signed, int width, | |
2845 | int use_c_format) | |
2846 | { | |
2847 | switch (radix) | |
2848 | { | |
2849 | case 16: | |
2850 | { | |
2851 | char *result; | |
2852 | if (width == 0) | |
2853 | result = hex_string (val); | |
2854 | else | |
2855 | result = hex_string_custom (val, width); | |
2856 | if (! use_c_format) | |
2857 | result += 2; | |
2858 | return result; | |
2859 | } | |
2860 | case 10: | |
2861 | { | |
2862 | char *result = get_cell (); | |
2863 | if (is_signed && val < 0) | |
2864 | decimal2str (result, "-", -val, width); | |
2865 | else | |
2866 | decimal2str (result, "", val, width); | |
2867 | return result; | |
2868 | } | |
2869 | case 8: | |
2870 | { | |
2871 | char *result = get_cell (); | |
2872 | octal2str (result, val, width); | |
2873 | if (use_c_format || val == 0) | |
2874 | return result; | |
2875 | else | |
2876 | return result + 1; | |
2877 | } | |
2878 | default: | |
2879 | internal_error (__FILE__, __LINE__, | |
2880 | "failed internal consistency check"); | |
2881 | } | |
2882 | } | |
2883 | ||
03dd37c3 AC |
2884 | /* Convert a CORE_ADDR into a string. */ |
2885 | const char * | |
2886 | core_addr_to_string (const CORE_ADDR addr) | |
49b563f9 KS |
2887 | { |
2888 | char *str = get_cell (); | |
2889 | strcpy (str, "0x"); | |
2890 | strcat (str, phex (addr, sizeof (addr))); | |
2891 | return str; | |
2892 | } | |
2893 | ||
2894 | const char * | |
2895 | core_addr_to_string_nz (const CORE_ADDR addr) | |
03dd37c3 AC |
2896 | { |
2897 | char *str = get_cell (); | |
2898 | strcpy (str, "0x"); | |
2899 | strcat (str, phex_nz (addr, sizeof (addr))); | |
2900 | return str; | |
2901 | } | |
2902 | ||
2903 | /* Convert a string back into a CORE_ADDR. */ | |
2904 | CORE_ADDR | |
2905 | string_to_core_addr (const char *my_string) | |
2906 | { | |
2907 | CORE_ADDR addr = 0; | |
2908 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') | |
2909 | { | |
2910 | /* Assume that it is in decimal. */ | |
2911 | int i; | |
2912 | for (i = 2; my_string[i] != '\0'; i++) | |
2913 | { | |
2914 | if (isdigit (my_string[i])) | |
2915 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 2916 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
2917 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
2918 | else | |
2919 | internal_error (__FILE__, __LINE__, "invalid hex"); | |
2920 | } | |
2921 | } | |
2922 | else | |
2923 | { | |
2924 | /* Assume that it is in decimal. */ | |
2925 | int i; | |
2926 | for (i = 0; my_string[i] != '\0'; i++) | |
2927 | { | |
2928 | if (isdigit (my_string[i])) | |
2929 | addr = (my_string[i] - '0') + (addr * 10); | |
2930 | else | |
2931 | internal_error (__FILE__, __LINE__, "invalid decimal"); | |
2932 | } | |
2933 | } | |
2934 | return addr; | |
2935 | } | |
58d370e0 TT |
2936 | |
2937 | char * | |
2938 | gdb_realpath (const char *filename) | |
2939 | { | |
70d35819 AC |
2940 | /* Method 1: The system has a compile time upper bound on a filename |
2941 | path. Use that and realpath() to canonicalize the name. This is | |
2942 | the most common case. Note that, if there isn't a compile time | |
2943 | upper bound, you want to avoid realpath() at all costs. */ | |
a4db0f07 | 2944 | #if defined(HAVE_REALPATH) |
70d35819 | 2945 | { |
a4db0f07 | 2946 | # if defined (PATH_MAX) |
70d35819 | 2947 | char buf[PATH_MAX]; |
a4db0f07 RH |
2948 | # define USE_REALPATH |
2949 | # elif defined (MAXPATHLEN) | |
70d35819 | 2950 | char buf[MAXPATHLEN]; |
a4db0f07 RH |
2951 | # define USE_REALPATH |
2952 | # endif | |
70d35819 | 2953 | # if defined (USE_REALPATH) |
82c0260e | 2954 | const char *rp = realpath (filename, buf); |
70d35819 AC |
2955 | if (rp == NULL) |
2956 | rp = filename; | |
2957 | return xstrdup (rp); | |
70d35819 | 2958 | # endif |
6f88d630 | 2959 | } |
a4db0f07 RH |
2960 | #endif /* HAVE_REALPATH */ |
2961 | ||
70d35819 AC |
2962 | /* Method 2: The host system (i.e., GNU) has the function |
2963 | canonicalize_file_name() which malloc's a chunk of memory and | |
2964 | returns that, use that. */ | |
2965 | #if defined(HAVE_CANONICALIZE_FILE_NAME) | |
2966 | { | |
2967 | char *rp = canonicalize_file_name (filename); | |
2968 | if (rp == NULL) | |
2969 | return xstrdup (filename); | |
2970 | else | |
2971 | return rp; | |
2972 | } | |
58d370e0 | 2973 | #endif |
70d35819 | 2974 | |
6411e720 AC |
2975 | /* FIXME: cagney/2002-11-13: |
2976 | ||
2977 | Method 2a: Use realpath() with a NULL buffer. Some systems, due | |
2978 | to the problems described in in method 3, have modified their | |
2979 | realpath() implementation so that it will allocate a buffer when | |
2980 | NULL is passed in. Before this can be used, though, some sort of | |
2981 | configure time test would need to be added. Otherwize the code | |
2982 | will likely core dump. */ | |
2983 | ||
70d35819 AC |
2984 | /* Method 3: Now we're getting desperate! The system doesn't have a |
2985 | compile time buffer size and no alternative function. Query the | |
2986 | OS, using pathconf(), for the buffer limit. Care is needed | |
2987 | though, some systems do not limit PATH_MAX (return -1 for | |
2988 | pathconf()) making it impossible to pass a correctly sized buffer | |
2989 | to realpath() (it could always overflow). On those systems, we | |
2990 | skip this. */ | |
2991 | #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA) | |
2992 | { | |
2993 | /* Find out the max path size. */ | |
2994 | long path_max = pathconf ("/", _PC_PATH_MAX); | |
2995 | if (path_max > 0) | |
2996 | { | |
2997 | /* PATH_MAX is bounded. */ | |
2998 | char *buf = alloca (path_max); | |
2999 | char *rp = realpath (filename, buf); | |
3000 | return xstrdup (rp ? rp : filename); | |
3001 | } | |
3002 | } | |
3003 | #endif | |
3004 | ||
3005 | /* This system is a lost cause, just dup the buffer. */ | |
3006 | return xstrdup (filename); | |
58d370e0 | 3007 | } |
303c8ebd JB |
3008 | |
3009 | /* Return a copy of FILENAME, with its directory prefix canonicalized | |
3010 | by gdb_realpath. */ | |
3011 | ||
3012 | char * | |
3013 | xfullpath (const char *filename) | |
3014 | { | |
3015 | const char *base_name = lbasename (filename); | |
3016 | char *dir_name; | |
3017 | char *real_path; | |
3018 | char *result; | |
3019 | ||
3020 | /* Extract the basename of filename, and return immediately | |
3021 | a copy of filename if it does not contain any directory prefix. */ | |
3022 | if (base_name == filename) | |
3023 | return xstrdup (filename); | |
3024 | ||
3025 | dir_name = alloca ((size_t) (base_name - filename + 2)); | |
3026 | /* Allocate enough space to store the dir_name + plus one extra | |
3027 | character sometimes needed under Windows (see below), and | |
3028 | then the closing \000 character */ | |
3029 | strncpy (dir_name, filename, base_name - filename); | |
3030 | dir_name[base_name - filename] = '\000'; | |
3031 | ||
3032 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3033 | /* We need to be careful when filename is of the form 'd:foo', which | |
3034 | is equivalent of d:./foo, which is totally different from d:/foo. */ | |
8731e58e | 3035 | if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':') |
303c8ebd JB |
3036 | { |
3037 | dir_name[2] = '.'; | |
3038 | dir_name[3] = '\000'; | |
3039 | } | |
3040 | #endif | |
3041 | ||
3042 | /* Canonicalize the directory prefix, and build the resulting | |
3043 | filename. If the dirname realpath already contains an ending | |
3044 | directory separator, avoid doubling it. */ | |
3045 | real_path = gdb_realpath (dir_name); | |
3046 | if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1])) | |
3047 | result = concat (real_path, base_name, NULL); | |
3048 | else | |
3049 | result = concat (real_path, SLASH_STRING, base_name, NULL); | |
3050 | ||
3051 | xfree (real_path); | |
3052 | return result; | |
3053 | } | |
5b5d99cf JB |
3054 | |
3055 | ||
3056 | /* This is the 32-bit CRC function used by the GNU separate debug | |
3057 | facility. An executable may contain a section named | |
3058 | .gnu_debuglink, which holds the name of a separate executable file | |
3059 | containing its debug info, and a checksum of that file's contents, | |
3060 | computed using this function. */ | |
3061 | unsigned long | |
3062 | gnu_debuglink_crc32 (unsigned long crc, unsigned char *buf, size_t len) | |
3063 | { | |
8731e58e AC |
3064 | static const unsigned long crc32_table[256] = { |
3065 | 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, | |
3066 | 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, | |
3067 | 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, | |
3068 | 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, | |
3069 | 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, | |
3070 | 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, | |
3071 | 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, | |
3072 | 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, | |
3073 | 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, | |
3074 | 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, | |
3075 | 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, | |
3076 | 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, | |
3077 | 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, | |
3078 | 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, | |
3079 | 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, | |
3080 | 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, | |
3081 | 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, | |
3082 | 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, | |
3083 | 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, | |
3084 | 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, | |
3085 | 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, | |
3086 | 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, | |
3087 | 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, | |
3088 | 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, | |
3089 | 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, | |
3090 | 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, | |
3091 | 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, | |
3092 | 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, | |
3093 | 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, | |
3094 | 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, | |
3095 | 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, | |
3096 | 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, | |
3097 | 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, | |
3098 | 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, | |
3099 | 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, | |
3100 | 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, | |
3101 | 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, | |
3102 | 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, | |
3103 | 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, | |
3104 | 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, | |
3105 | 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, | |
3106 | 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, | |
3107 | 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, | |
3108 | 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, | |
3109 | 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, | |
3110 | 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, | |
3111 | 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, | |
3112 | 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, | |
3113 | 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, | |
3114 | 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, | |
3115 | 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, | |
3116 | 0x2d02ef8d | |
3117 | }; | |
5b5d99cf JB |
3118 | unsigned char *end; |
3119 | ||
3120 | crc = ~crc & 0xffffffff; | |
3121 | for (end = buf + len; buf < end; ++buf) | |
3122 | crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8); | |
3123 | return ~crc & 0xffffffff;; | |
3124 | } | |
5b03f266 AC |
3125 | |
3126 | ULONGEST | |
3127 | align_up (ULONGEST v, int n) | |
3128 | { | |
3129 | /* Check that N is really a power of two. */ | |
3130 | gdb_assert (n && (n & (n-1)) == 0); | |
3131 | return (v + n - 1) & -n; | |
3132 | } | |
3133 | ||
3134 | ULONGEST | |
3135 | align_down (ULONGEST v, int n) | |
3136 | { | |
3137 | /* Check that N is really a power of two. */ | |
3138 | gdb_assert (n && (n & (n-1)) == 0); | |
3139 | return (v & -n); | |
3140 | } |