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