Commit | Line | Data |
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c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
1bac305b | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, |
0fb0cc75 JB |
4 | 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, |
5 | 2009 Free Software Foundation, Inc. | |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 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 | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c | 21 | |
4e8f7a8b DJ |
22 | #include "defs.h" |
23 | #include "gdb_assert.h" | |
24 | #include <ctype.h> | |
25 | #include "gdb_string.h" | |
26 | #include "event-top.h" | |
60250e8b | 27 | #include "exceptions.h" |
95e54da7 | 28 | #include "gdbthread.h" |
4e8f7a8b | 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" |
ae5a43e0 | 55 | #include "gdb_obstack.h" |
9544c605 | 56 | #include "gdbcore.h" |
698ba934 | 57 | #include "top.h" |
c906108c | 58 | |
8731e58e | 59 | #include "inferior.h" /* for signed_pointer_to_address */ |
ac2e2ef7 | 60 | |
2d1b2124 AC |
61 | #include <sys/param.h> /* For MAXPATHLEN */ |
62 | ||
3b78cdbb | 63 | #include "gdb_curses.h" |
020cc13c | 64 | |
dbda9972 | 65 | #include "readline/readline.h" |
c906108c | 66 | |
75feb17d DJ |
67 | #include <sys/time.h> |
68 | #include <time.h> | |
69 | ||
a3828db0 | 70 | #if !HAVE_DECL_MALLOC |
8dbb1c65 | 71 | extern PTR malloc (); /* OK: PTR */ |
3c37485b | 72 | #endif |
a3828db0 | 73 | #if !HAVE_DECL_REALLOC |
8dbb1c65 | 74 | extern PTR realloc (); /* OK: PTR */ |
0e52036f | 75 | #endif |
a3828db0 | 76 | #if !HAVE_DECL_FREE |
81b8eb80 AC |
77 | extern void free (); |
78 | #endif | |
81b8eb80 | 79 | |
c906108c SS |
80 | /* readline defines this. */ |
81 | #undef savestring | |
82 | ||
9a4105ab | 83 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
84 | |
85 | /* Prototypes for local functions */ | |
86 | ||
d9fcf2fb | 87 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
bee0189a | 88 | va_list, int) ATTR_FORMAT (printf, 2, 0); |
c906108c | 89 | |
d9fcf2fb | 90 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 91 | |
e42c9534 AC |
92 | static void do_my_cleanups (struct cleanup **, struct cleanup *); |
93 | ||
a14ed312 | 94 | static void prompt_for_continue (void); |
c906108c | 95 | |
eb0d3137 | 96 | static void set_screen_size (void); |
a14ed312 | 97 | static void set_width (void); |
c906108c | 98 | |
75feb17d DJ |
99 | /* A flag indicating whether to timestamp debugging messages. */ |
100 | ||
101 | static int debug_timestamp = 0; | |
102 | ||
c906108c SS |
103 | /* Chain of cleanup actions established with make_cleanup, |
104 | to be executed if an error happens. */ | |
105 | ||
c5aa993b JM |
106 | static struct cleanup *cleanup_chain; /* cleaned up after a failed command */ |
107 | static struct cleanup *final_cleanup_chain; /* cleaned up when gdb exits */ | |
43ff13b4 | 108 | |
c906108c SS |
109 | /* Nonzero if we have job control. */ |
110 | ||
111 | int job_control; | |
112 | ||
113 | /* Nonzero means a quit has been requested. */ | |
114 | ||
115 | int quit_flag; | |
116 | ||
117 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
118 | than waiting until QUIT is executed. Be careful in setting this; | |
119 | code which executes with immediate_quit set has to be very careful | |
120 | about being able to deal with being interrupted at any time. It is | |
121 | almost always better to use QUIT; the only exception I can think of | |
122 | is being able to quit out of a system call (using EINTR loses if | |
123 | the SIGINT happens between the previous QUIT and the system call). | |
124 | To immediately quit in the case in which a SIGINT happens between | |
125 | the previous QUIT and setting immediate_quit (desirable anytime we | |
126 | expect to block), call QUIT after setting immediate_quit. */ | |
127 | ||
128 | int immediate_quit; | |
129 | ||
4a351cef AF |
130 | /* Nonzero means that encoded C++/ObjC names should be printed out in their |
131 | C++/ObjC form rather than raw. */ | |
c906108c SS |
132 | |
133 | int demangle = 1; | |
920d2a44 AC |
134 | static void |
135 | show_demangle (struct ui_file *file, int from_tty, | |
136 | struct cmd_list_element *c, const char *value) | |
137 | { | |
138 | fprintf_filtered (file, _("\ | |
139 | Demangling of encoded C++/ObjC names when displaying symbols is %s.\n"), | |
140 | value); | |
141 | } | |
c906108c | 142 | |
4a351cef AF |
143 | /* Nonzero means that encoded C++/ObjC names should be printed out in their |
144 | C++/ObjC form even in assembler language displays. If this is set, but | |
c906108c SS |
145 | DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */ |
146 | ||
147 | int asm_demangle = 0; | |
920d2a44 AC |
148 | static void |
149 | show_asm_demangle (struct ui_file *file, int from_tty, | |
150 | struct cmd_list_element *c, const char *value) | |
151 | { | |
152 | fprintf_filtered (file, _("\ | |
153 | Demangling of C++/ObjC names in disassembly listings is %s.\n"), | |
154 | value); | |
155 | } | |
c906108c SS |
156 | |
157 | /* Nonzero means that strings with character values >0x7F should be printed | |
158 | as octal escapes. Zero means just print the value (e.g. it's an | |
159 | international character, and the terminal or window can cope.) */ | |
160 | ||
161 | int sevenbit_strings = 0; | |
920d2a44 AC |
162 | static void |
163 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
164 | struct cmd_list_element *c, const char *value) | |
165 | { | |
166 | fprintf_filtered (file, _("\ | |
167 | Printing of 8-bit characters in strings as \\nnn is %s.\n"), | |
168 | value); | |
169 | } | |
c906108c SS |
170 | |
171 | /* String to be printed before error messages, if any. */ | |
172 | ||
173 | char *error_pre_print; | |
174 | ||
175 | /* String to be printed before quit messages, if any. */ | |
176 | ||
177 | char *quit_pre_print; | |
178 | ||
179 | /* String to be printed before warning messages, if any. */ | |
180 | ||
181 | char *warning_pre_print = "\nwarning: "; | |
182 | ||
183 | int pagination_enabled = 1; | |
920d2a44 AC |
184 | static void |
185 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
186 | struct cmd_list_element *c, const char *value) | |
187 | { | |
188 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
189 | } | |
190 | ||
c906108c | 191 | \f |
c5aa993b | 192 | |
c906108c SS |
193 | /* Add a new cleanup to the cleanup_chain, |
194 | and return the previous chain pointer | |
195 | to be passed later to do_cleanups or discard_cleanups. | |
196 | Args are FUNCTION to clean up with, and ARG to pass to it. */ | |
197 | ||
198 | struct cleanup * | |
e4005526 | 199 | make_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 200 | { |
c5aa993b | 201 | return make_my_cleanup (&cleanup_chain, function, arg); |
c906108c SS |
202 | } |
203 | ||
4f8d22e3 PA |
204 | struct cleanup * |
205 | make_cleanup_dtor (make_cleanup_ftype *function, void *arg, | |
206 | void (*dtor) (void *)) | |
207 | { | |
208 | return make_my_cleanup2 (&cleanup_chain, | |
209 | function, arg, dtor); | |
210 | } | |
211 | ||
c906108c | 212 | struct cleanup * |
e4005526 | 213 | make_final_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 214 | { |
c5aa993b | 215 | return make_my_cleanup (&final_cleanup_chain, function, arg); |
c906108c | 216 | } |
7a292a7a | 217 | |
7a292a7a | 218 | static void |
fba45db2 | 219 | do_freeargv (void *arg) |
7a292a7a | 220 | { |
c5aa993b | 221 | freeargv ((char **) arg); |
7a292a7a SS |
222 | } |
223 | ||
224 | struct cleanup * | |
fba45db2 | 225 | make_cleanup_freeargv (char **arg) |
7a292a7a SS |
226 | { |
227 | return make_my_cleanup (&cleanup_chain, do_freeargv, arg); | |
228 | } | |
229 | ||
5c65bbb6 AC |
230 | static void |
231 | do_bfd_close_cleanup (void *arg) | |
232 | { | |
233 | bfd_close (arg); | |
234 | } | |
235 | ||
236 | struct cleanup * | |
237 | make_cleanup_bfd_close (bfd *abfd) | |
238 | { | |
239 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
240 | } | |
241 | ||
f5ff8c83 AC |
242 | static void |
243 | do_close_cleanup (void *arg) | |
244 | { | |
f042532c AC |
245 | int *fd = arg; |
246 | close (*fd); | |
f5ff8c83 AC |
247 | } |
248 | ||
249 | struct cleanup * | |
250 | make_cleanup_close (int fd) | |
251 | { | |
f042532c AC |
252 | int *saved_fd = xmalloc (sizeof (fd)); |
253 | *saved_fd = fd; | |
a05016c0 | 254 | return make_cleanup_dtor (do_close_cleanup, saved_fd, xfree); |
f5ff8c83 AC |
255 | } |
256 | ||
7c8a8b04 TT |
257 | /* Helper function which does the work for make_cleanup_fclose. */ |
258 | ||
259 | static void | |
260 | do_fclose_cleanup (void *arg) | |
261 | { | |
262 | FILE *file = arg; | |
263 | fclose (arg); | |
264 | } | |
265 | ||
266 | /* Return a new cleanup that closes FILE. */ | |
267 | ||
268 | struct cleanup * | |
269 | make_cleanup_fclose (FILE *file) | |
270 | { | |
271 | return make_cleanup (do_fclose_cleanup, file); | |
272 | } | |
273 | ||
11cf8741 | 274 | static void |
d9fcf2fb | 275 | do_ui_file_delete (void *arg) |
11cf8741 | 276 | { |
d9fcf2fb | 277 | ui_file_delete (arg); |
11cf8741 JM |
278 | } |
279 | ||
280 | struct cleanup * | |
d9fcf2fb | 281 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 282 | { |
d9fcf2fb | 283 | return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg); |
11cf8741 JM |
284 | } |
285 | ||
7b90c3f9 JB |
286 | static void |
287 | do_free_section_addr_info (void *arg) | |
288 | { | |
289 | free_section_addr_info (arg); | |
290 | } | |
291 | ||
292 | struct cleanup * | |
293 | make_cleanup_free_section_addr_info (struct section_addr_info *addrs) | |
294 | { | |
295 | return make_my_cleanup (&cleanup_chain, do_free_section_addr_info, addrs); | |
296 | } | |
297 | ||
0b080f59 VP |
298 | struct restore_integer_closure |
299 | { | |
300 | int *variable; | |
301 | int value; | |
302 | }; | |
303 | ||
304 | static void | |
305 | restore_integer (void *p) | |
306 | { | |
307 | struct restore_integer_closure *closure = p; | |
308 | *(closure->variable) = closure->value; | |
309 | } | |
7b90c3f9 | 310 | |
0b080f59 VP |
311 | /* Remember the current value of *VARIABLE and make it restored when the cleanup |
312 | is run. */ | |
c906108c | 313 | struct cleanup * |
0b080f59 VP |
314 | make_cleanup_restore_integer (int *variable) |
315 | { | |
316 | struct restore_integer_closure *c = | |
317 | xmalloc (sizeof (struct restore_integer_closure)); | |
318 | c->variable = variable; | |
319 | c->value = *variable; | |
320 | ||
321 | return make_my_cleanup2 (&cleanup_chain, restore_integer, (void *)c, | |
322 | xfree); | |
323 | } | |
324 | ||
325 | struct cleanup * | |
326 | make_my_cleanup2 (struct cleanup **pmy_chain, make_cleanup_ftype *function, | |
327 | void *arg, void (*free_arg) (void *)) | |
c906108c | 328 | { |
52f0bd74 | 329 | struct cleanup *new |
8731e58e | 330 | = (struct cleanup *) xmalloc (sizeof (struct cleanup)); |
52f0bd74 | 331 | struct cleanup *old_chain = *pmy_chain; |
c906108c SS |
332 | |
333 | new->next = *pmy_chain; | |
334 | new->function = function; | |
0b080f59 | 335 | new->free_arg = free_arg; |
c906108c SS |
336 | new->arg = arg; |
337 | *pmy_chain = new; | |
338 | ||
339 | return old_chain; | |
340 | } | |
341 | ||
0b080f59 VP |
342 | struct cleanup * |
343 | make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function, | |
344 | void *arg) | |
345 | { | |
346 | return make_my_cleanup2 (pmy_chain, function, arg, NULL); | |
347 | } | |
348 | ||
c906108c SS |
349 | /* Discard cleanups and do the actions they describe |
350 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
351 | ||
352 | void | |
aa1ee363 | 353 | do_cleanups (struct cleanup *old_chain) |
c906108c | 354 | { |
c5aa993b | 355 | do_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
356 | } |
357 | ||
358 | void | |
aa1ee363 | 359 | do_final_cleanups (struct cleanup *old_chain) |
c906108c | 360 | { |
c5aa993b | 361 | do_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
362 | } |
363 | ||
e42c9534 | 364 | static void |
aa1ee363 AC |
365 | do_my_cleanups (struct cleanup **pmy_chain, |
366 | struct cleanup *old_chain) | |
c906108c | 367 | { |
52f0bd74 | 368 | struct cleanup *ptr; |
c906108c SS |
369 | while ((ptr = *pmy_chain) != old_chain) |
370 | { | |
371 | *pmy_chain = ptr->next; /* Do this first incase recursion */ | |
372 | (*ptr->function) (ptr->arg); | |
0b080f59 VP |
373 | if (ptr->free_arg) |
374 | (*ptr->free_arg) (ptr->arg); | |
b8c9b27d | 375 | xfree (ptr); |
c906108c SS |
376 | } |
377 | } | |
378 | ||
379 | /* Discard cleanups, not doing the actions they describe, | |
380 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
381 | ||
382 | void | |
aa1ee363 | 383 | discard_cleanups (struct cleanup *old_chain) |
c906108c | 384 | { |
c5aa993b | 385 | discard_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
386 | } |
387 | ||
388 | void | |
aa1ee363 | 389 | discard_final_cleanups (struct cleanup *old_chain) |
c906108c | 390 | { |
c5aa993b | 391 | discard_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
392 | } |
393 | ||
394 | void | |
aa1ee363 AC |
395 | discard_my_cleanups (struct cleanup **pmy_chain, |
396 | struct cleanup *old_chain) | |
c906108c | 397 | { |
52f0bd74 | 398 | struct cleanup *ptr; |
c906108c SS |
399 | while ((ptr = *pmy_chain) != old_chain) |
400 | { | |
401 | *pmy_chain = ptr->next; | |
0b080f59 VP |
402 | if (ptr->free_arg) |
403 | (*ptr->free_arg) (ptr->arg); | |
b8c9b27d | 404 | xfree (ptr); |
c906108c SS |
405 | } |
406 | } | |
407 | ||
408 | /* Set the cleanup_chain to 0, and return the old cleanup chain. */ | |
409 | struct cleanup * | |
fba45db2 | 410 | save_cleanups (void) |
c906108c | 411 | { |
c5aa993b | 412 | return save_my_cleanups (&cleanup_chain); |
c906108c SS |
413 | } |
414 | ||
415 | struct cleanup * | |
fba45db2 | 416 | save_final_cleanups (void) |
c906108c | 417 | { |
c5aa993b | 418 | return save_my_cleanups (&final_cleanup_chain); |
c906108c SS |
419 | } |
420 | ||
421 | struct cleanup * | |
fba45db2 | 422 | save_my_cleanups (struct cleanup **pmy_chain) |
c906108c SS |
423 | { |
424 | struct cleanup *old_chain = *pmy_chain; | |
425 | ||
426 | *pmy_chain = 0; | |
427 | return old_chain; | |
428 | } | |
429 | ||
430 | /* Restore the cleanup chain from a previously saved chain. */ | |
431 | void | |
fba45db2 | 432 | restore_cleanups (struct cleanup *chain) |
c906108c | 433 | { |
c5aa993b | 434 | restore_my_cleanups (&cleanup_chain, chain); |
c906108c SS |
435 | } |
436 | ||
437 | void | |
fba45db2 | 438 | restore_final_cleanups (struct cleanup *chain) |
c906108c | 439 | { |
c5aa993b | 440 | restore_my_cleanups (&final_cleanup_chain, chain); |
c906108c SS |
441 | } |
442 | ||
443 | void | |
fba45db2 | 444 | restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain) |
c906108c SS |
445 | { |
446 | *pmy_chain = chain; | |
447 | } | |
448 | ||
449 | /* This function is useful for cleanups. | |
450 | Do | |
451 | ||
c5aa993b JM |
452 | foo = xmalloc (...); |
453 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
454 | |
455 | to arrange to free the object thus allocated. */ | |
456 | ||
457 | void | |
2f9429ae | 458 | free_current_contents (void *ptr) |
c906108c | 459 | { |
2f9429ae | 460 | void **location = ptr; |
e2f9c474 | 461 | if (location == NULL) |
8e65ff28 | 462 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 463 | _("free_current_contents: NULL pointer")); |
2f9429ae | 464 | if (*location != NULL) |
e2f9c474 | 465 | { |
b8c9b27d | 466 | xfree (*location); |
e2f9c474 AC |
467 | *location = NULL; |
468 | } | |
c906108c SS |
469 | } |
470 | ||
471 | /* Provide a known function that does nothing, to use as a base for | |
472 | for a possibly long chain of cleanups. This is useful where we | |
473 | use the cleanup chain for handling normal cleanups as well as dealing | |
474 | with cleanups that need to be done as a result of a call to error(). | |
475 | In such cases, we may not be certain where the first cleanup is, unless | |
476 | we have a do-nothing one to always use as the base. */ | |
477 | ||
c906108c | 478 | void |
e4005526 | 479 | null_cleanup (void *arg) |
c906108c SS |
480 | { |
481 | } | |
482 | ||
0ffe5012 PA |
483 | /* Continuations are implemented as cleanups internally. Inherit from |
484 | cleanups. */ | |
485 | struct continuation | |
486 | { | |
487 | struct cleanup base; | |
488 | }; | |
489 | ||
95e54da7 PA |
490 | /* Add a continuation to the continuation list of THREAD. The new |
491 | continuation will be added at the front. */ | |
43ff13b4 | 492 | void |
95e54da7 PA |
493 | add_continuation (struct thread_info *thread, |
494 | void (*continuation_hook) (void *), void *args, | |
604ead4a | 495 | void (*continuation_free_args) (void *)) |
43ff13b4 | 496 | { |
95e54da7 | 497 | struct cleanup *as_cleanup = &thread->continuations->base; |
604ead4a | 498 | make_cleanup_ftype *continuation_hook_fn = continuation_hook; |
43ff13b4 | 499 | |
0ffe5012 | 500 | make_my_cleanup2 (&as_cleanup, |
604ead4a PA |
501 | continuation_hook_fn, |
502 | args, | |
503 | continuation_free_args); | |
0ffe5012 | 504 | |
95e54da7 | 505 | thread->continuations = (struct continuation *) as_cleanup; |
43ff13b4 JM |
506 | } |
507 | ||
e0ba6746 PA |
508 | /* Add a continuation to the continuation list of INFERIOR. The new |
509 | continuation will be added at the front. */ | |
510 | ||
511 | void | |
512 | add_inferior_continuation (void (*continuation_hook) (void *), void *args, | |
513 | void (*continuation_free_args) (void *)) | |
514 | { | |
515 | struct inferior *inf = current_inferior (); | |
516 | struct cleanup *as_cleanup = &inf->continuations->base; | |
517 | make_cleanup_ftype *continuation_hook_fn = continuation_hook; | |
518 | ||
519 | make_my_cleanup2 (&as_cleanup, | |
520 | continuation_hook_fn, | |
521 | args, | |
522 | continuation_free_args); | |
523 | ||
524 | inf->continuations = (struct continuation *) as_cleanup; | |
525 | } | |
526 | ||
527 | /* Do all continuations of the current inferior. */ | |
528 | ||
529 | void | |
530 | do_all_inferior_continuations (void) | |
531 | { | |
532 | struct cleanup *old_chain; | |
533 | struct cleanup *as_cleanup; | |
534 | struct inferior *inf = current_inferior (); | |
535 | ||
536 | if (inf->continuations == NULL) | |
537 | return; | |
538 | ||
539 | /* Copy the list header into another pointer, and set the global | |
540 | list header to null, so that the global list can change as a side | |
541 | effect of invoking the continuations and the processing of the | |
542 | preexisting continuations will not be affected. */ | |
543 | ||
544 | as_cleanup = &inf->continuations->base; | |
545 | inf->continuations = NULL; | |
546 | ||
547 | /* Work now on the list we have set aside. */ | |
548 | do_my_cleanups (&as_cleanup, NULL); | |
549 | } | |
550 | ||
551 | /* Get rid of all the inferior-wide continuations of INF. */ | |
552 | ||
553 | void | |
554 | discard_all_inferior_continuations (struct inferior *inf) | |
555 | { | |
556 | struct cleanup *continuation_ptr = &inf->continuations->base; | |
557 | discard_my_cleanups (&continuation_ptr, NULL); | |
558 | inf->continuations = NULL; | |
559 | } | |
560 | ||
95e54da7 PA |
561 | static void |
562 | restore_thread_cleanup (void *arg) | |
563 | { | |
564 | ptid_t *ptid_p = arg; | |
565 | switch_to_thread (*ptid_p); | |
566 | } | |
567 | ||
568 | /* Walk down the continuation list of PTID, and execute all the | |
569 | continuations. There is a problem though. In some cases new | |
570 | continuations may be added while we are in the middle of this loop. | |
571 | If this happens they will be added in the front, and done before we | |
572 | have a chance of exhausting those that were already there. We need | |
573 | to then save the beginning of the list in a pointer and do the | |
574 | continuations from there on, instead of using the global beginning | |
575 | of list as our iteration pointer. */ | |
576 | static void | |
577 | do_all_continuations_ptid (ptid_t ptid, | |
578 | struct continuation **continuations_p) | |
c2d11a7d | 579 | { |
95e54da7 PA |
580 | struct cleanup *old_chain; |
581 | ptid_t current_thread; | |
582 | struct cleanup *as_cleanup; | |
583 | ||
584 | if (*continuations_p == NULL) | |
585 | return; | |
586 | ||
587 | current_thread = inferior_ptid; | |
588 | ||
589 | /* Restore selected thread on exit. Don't try to restore the frame | |
590 | as well, because: | |
591 | ||
592 | - When running continuations, the selected frame is always #0. | |
593 | ||
594 | - The continuations may trigger symbol file loads, which may | |
595 | change the frame layout (frame ids change), which would trigger | |
596 | a warning if we used make_cleanup_restore_current_thread. */ | |
597 | ||
598 | old_chain = make_cleanup (restore_thread_cleanup, ¤t_thread); | |
599 | ||
600 | /* Let the continuation see this thread as selected. */ | |
601 | switch_to_thread (ptid); | |
c2d11a7d JM |
602 | |
603 | /* Copy the list header into another pointer, and set the global | |
604 | list header to null, so that the global list can change as a side | |
604ead4a PA |
605 | effect of invoking the continuations and the processing of the |
606 | preexisting continuations will not be affected. */ | |
607 | ||
95e54da7 PA |
608 | as_cleanup = &(*continuations_p)->base; |
609 | *continuations_p = NULL; | |
c2d11a7d | 610 | |
0a4a0819 | 611 | /* Work now on the list we have set aside. */ |
95e54da7 PA |
612 | do_my_cleanups (&as_cleanup, NULL); |
613 | ||
614 | do_cleanups (old_chain); | |
615 | } | |
616 | ||
617 | /* Callback for iterate over threads. */ | |
618 | static int | |
619 | do_all_continuations_thread_callback (struct thread_info *thread, void *data) | |
620 | { | |
621 | do_all_continuations_ptid (thread->ptid, &thread->continuations); | |
622 | return 0; | |
c2d11a7d JM |
623 | } |
624 | ||
95e54da7 | 625 | /* Do all continuations of thread THREAD. */ |
c2d11a7d | 626 | void |
95e54da7 PA |
627 | do_all_continuations_thread (struct thread_info *thread) |
628 | { | |
629 | do_all_continuations_thread_callback (thread, NULL); | |
630 | } | |
631 | ||
632 | /* Do all continuations of all threads. */ | |
633 | void | |
634 | do_all_continuations (void) | |
43ff13b4 | 635 | { |
95e54da7 PA |
636 | iterate_over_threads (do_all_continuations_thread_callback, NULL); |
637 | } | |
638 | ||
639 | /* Callback for iterate over threads. */ | |
640 | static int | |
641 | discard_all_continuations_thread_callback (struct thread_info *thread, | |
642 | void *data) | |
643 | { | |
644 | struct cleanup *continuation_ptr = &thread->continuations->base; | |
0ffe5012 | 645 | discard_my_cleanups (&continuation_ptr, NULL); |
95e54da7 PA |
646 | thread->continuations = NULL; |
647 | return 0; | |
648 | } | |
649 | ||
650 | /* Get rid of all the continuations of THREAD. */ | |
651 | void | |
652 | discard_all_continuations_thread (struct thread_info *thread) | |
653 | { | |
654 | discard_all_continuations_thread_callback (thread, NULL); | |
655 | } | |
656 | ||
657 | /* Get rid of all the continuations of all threads. */ | |
658 | void | |
659 | discard_all_continuations (void) | |
660 | { | |
661 | iterate_over_threads (discard_all_continuations_thread_callback, NULL); | |
43ff13b4 | 662 | } |
c2c6d25f | 663 | |
95e54da7 PA |
664 | |
665 | /* Add a continuation to the intermediate continuation list of THREAD. | |
666 | The new continuation will be added at the front. */ | |
c2d11a7d | 667 | void |
95e54da7 PA |
668 | add_intermediate_continuation (struct thread_info *thread, |
669 | void (*continuation_hook) | |
604ead4a PA |
670 | (void *), void *args, |
671 | void (*continuation_free_args) (void *)) | |
c2d11a7d | 672 | { |
95e54da7 | 673 | struct cleanup *as_cleanup = &thread->intermediate_continuations->base; |
604ead4a | 674 | make_cleanup_ftype *continuation_hook_fn = continuation_hook; |
c2d11a7d | 675 | |
0ffe5012 | 676 | make_my_cleanup2 (&as_cleanup, |
604ead4a PA |
677 | continuation_hook_fn, |
678 | args, | |
679 | continuation_free_args); | |
0ffe5012 | 680 | |
95e54da7 | 681 | thread->intermediate_continuations = (struct continuation *) as_cleanup; |
c2d11a7d JM |
682 | } |
683 | ||
684 | /* Walk down the cmd_continuation list, and execute all the | |
685 | continuations. There is a problem though. In some cases new | |
686 | continuations may be added while we are in the middle of this | |
687 | loop. If this happens they will be added in the front, and done | |
688 | before we have a chance of exhausting those that were already | |
689 | there. We need to then save the beginning of the list in a pointer | |
690 | and do the continuations from there on, instead of using the | |
691 | global beginning of list as our iteration pointer.*/ | |
95e54da7 PA |
692 | static int |
693 | do_all_intermediate_continuations_thread_callback (struct thread_info *thread, | |
694 | void *data) | |
695 | { | |
696 | do_all_continuations_ptid (thread->ptid, | |
697 | &thread->intermediate_continuations); | |
698 | return 0; | |
699 | } | |
700 | ||
701 | /* Do all intermediate continuations of thread THREAD. */ | |
c2d11a7d | 702 | void |
95e54da7 | 703 | do_all_intermediate_continuations_thread (struct thread_info *thread) |
c2d11a7d | 704 | { |
95e54da7 PA |
705 | do_all_intermediate_continuations_thread_callback (thread, NULL); |
706 | } | |
c2d11a7d | 707 | |
95e54da7 PA |
708 | /* Do all intermediate continuations of all threads. */ |
709 | void | |
710 | do_all_intermediate_continuations (void) | |
711 | { | |
712 | iterate_over_threads (do_all_intermediate_continuations_thread_callback, NULL); | |
713 | } | |
604ead4a | 714 | |
95e54da7 PA |
715 | /* Callback for iterate over threads. */ |
716 | static int | |
717 | discard_all_intermediate_continuations_thread_callback (struct thread_info *thread, | |
718 | void *data) | |
719 | { | |
720 | struct cleanup *continuation_ptr = &thread->intermediate_continuations->base; | |
721 | discard_my_cleanups (&continuation_ptr, NULL); | |
722 | thread->intermediate_continuations = NULL; | |
723 | return 0; | |
724 | } | |
c2d11a7d | 725 | |
95e54da7 PA |
726 | /* Get rid of all the intermediate continuations of THREAD. */ |
727 | void | |
728 | discard_all_intermediate_continuations_thread (struct thread_info *thread) | |
729 | { | |
730 | discard_all_intermediate_continuations_thread_callback (thread, NULL); | |
c2d11a7d JM |
731 | } |
732 | ||
95e54da7 | 733 | /* Get rid of all the intermediate continuations of all threads. */ |
c2c6d25f | 734 | void |
fba45db2 | 735 | discard_all_intermediate_continuations (void) |
c2c6d25f | 736 | { |
95e54da7 | 737 | iterate_over_threads (discard_all_intermediate_continuations_thread_callback, NULL); |
c2c6d25f | 738 | } |
c906108c | 739 | \f |
c5aa993b | 740 | |
8731e58e | 741 | |
f5a96129 AC |
742 | /* Print a warning message. The first argument STRING is the warning |
743 | message, used as an fprintf format string, the second is the | |
744 | va_list of arguments for that string. A warning is unfiltered (not | |
745 | paginated) so that the user does not need to page through each | |
746 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
747 | |
748 | void | |
f5a96129 | 749 | vwarning (const char *string, va_list args) |
c906108c | 750 | { |
9a4105ab AC |
751 | if (deprecated_warning_hook) |
752 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
753 | else |
754 | { | |
755 | target_terminal_ours (); | |
756 | wrap_here (""); /* Force out any buffered output */ | |
757 | gdb_flush (gdb_stdout); | |
758 | if (warning_pre_print) | |
306d9ac5 | 759 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
760 | vfprintf_unfiltered (gdb_stderr, string, args); |
761 | fprintf_unfiltered (gdb_stderr, "\n"); | |
762 | va_end (args); | |
763 | } | |
c906108c SS |
764 | } |
765 | ||
766 | /* Print a warning message. | |
767 | The first argument STRING is the warning message, used as a fprintf string, | |
768 | and the remaining args are passed as arguments to it. | |
769 | The primary difference between warnings and errors is that a warning | |
770 | does not force the return to command level. */ | |
771 | ||
c906108c | 772 | void |
8731e58e | 773 | warning (const char *string, ...) |
c906108c SS |
774 | { |
775 | va_list args; | |
c906108c | 776 | va_start (args, string); |
f5a96129 AC |
777 | vwarning (string, args); |
778 | va_end (args); | |
c906108c SS |
779 | } |
780 | ||
c906108c SS |
781 | /* Print an error message and return to command level. |
782 | The first argument STRING is the error message, used as a fprintf string, | |
783 | and the remaining args are passed as arguments to it. */ | |
784 | ||
4ce44c66 JM |
785 | NORETURN void |
786 | verror (const char *string, va_list args) | |
787 | { | |
6b1b7650 | 788 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
789 | } |
790 | ||
c906108c | 791 | NORETURN void |
8731e58e | 792 | error (const char *string, ...) |
c906108c SS |
793 | { |
794 | va_list args; | |
c906108c | 795 | va_start (args, string); |
6b1b7650 | 796 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 | 797 | va_end (args); |
c906108c SS |
798 | } |
799 | ||
d75e3c94 JJ |
800 | /* Print an error message and quit. |
801 | The first argument STRING is the error message, used as a fprintf string, | |
802 | and the remaining args are passed as arguments to it. */ | |
803 | ||
804 | NORETURN void | |
805 | vfatal (const char *string, va_list args) | |
806 | { | |
6b1b7650 | 807 | throw_vfatal (string, args); |
d75e3c94 JJ |
808 | } |
809 | ||
810 | NORETURN void | |
811 | fatal (const char *string, ...) | |
812 | { | |
813 | va_list args; | |
814 | va_start (args, string); | |
6b1b7650 | 815 | throw_vfatal (string, args); |
d75e3c94 JJ |
816 | va_end (args); |
817 | } | |
818 | ||
d75e3c94 JJ |
819 | NORETURN void |
820 | error_stream (struct ui_file *stream) | |
2acceee2 | 821 | { |
4ce44c66 | 822 | long len; |
6b1b7650 AC |
823 | char *message = ui_file_xstrdup (stream, &len); |
824 | make_cleanup (xfree, message); | |
8a3fe4f8 | 825 | error (("%s"), message); |
2acceee2 | 826 | } |
c906108c | 827 | |
dec43320 AC |
828 | /* Print a message reporting an internal error/warning. Ask the user |
829 | if they want to continue, dump core, or just exit. Return | |
830 | something to indicate a quit. */ | |
c906108c | 831 | |
dec43320 | 832 | struct internal_problem |
c906108c | 833 | { |
dec43320 AC |
834 | const char *name; |
835 | /* FIXME: cagney/2002-08-15: There should be ``maint set/show'' | |
836 | commands available for controlling these variables. */ | |
837 | enum auto_boolean should_quit; | |
838 | enum auto_boolean should_dump_core; | |
839 | }; | |
840 | ||
841 | /* Report a problem, internal to GDB, to the user. Once the problem | |
842 | has been reported, and assuming GDB didn't quit, the caller can | |
843 | either allow execution to resume or throw an error. */ | |
844 | ||
bee0189a | 845 | static void ATTR_FORMAT (printf, 4, 0) |
dec43320 | 846 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 847 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 848 | { |
dec43320 | 849 | static int dejavu; |
375fc983 | 850 | int quit_p; |
7be570e7 | 851 | int dump_core_p; |
714b1282 | 852 | char *reason; |
c906108c | 853 | |
dec43320 | 854 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
855 | { |
856 | static char msg[] = "Recursive internal problem.\n"; | |
857 | switch (dejavu) | |
858 | { | |
859 | case 0: | |
860 | dejavu = 1; | |
861 | break; | |
862 | case 1: | |
863 | dejavu = 2; | |
864 | fputs_unfiltered (msg, gdb_stderr); | |
bf1d7d9c | 865 | abort (); /* NOTE: GDB has only four calls to abort(). */ |
714b1282 AC |
866 | default: |
867 | dejavu = 3; | |
bf1d7d9c JB |
868 | /* Newer GLIBC versions put the warn_unused_result attribute |
869 | on write, but this is one of those rare cases where | |
870 | ignoring the return value is correct. Casting to (void) | |
871 | does not fix this problem. This is the solution suggested | |
872 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
873 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
874 | abort (); /* NOTE: GDB has only four calls to abort(). */ | |
714b1282 AC |
875 | exit (1); |
876 | } | |
877 | } | |
c906108c | 878 | |
dec43320 | 879 | /* Try to get the message out and at the start of a new line. */ |
4261bedc | 880 | target_terminal_ours (); |
dec43320 AC |
881 | begin_line (); |
882 | ||
714b1282 AC |
883 | /* Create a string containing the full error/warning message. Need |
884 | to call query with this full string, as otherwize the reason | |
885 | (error/warning) and question become separated. Format using a | |
886 | style similar to a compiler error message. Include extra detail | |
887 | so that the user knows that they are living on the edge. */ | |
888 | { | |
889 | char *msg; | |
e623b504 | 890 | msg = xstrvprintf (fmt, ap); |
b435e160 | 891 | reason = xstrprintf ("\ |
714b1282 AC |
892 | %s:%d: %s: %s\n\ |
893 | A problem internal to GDB has been detected,\n\ | |
894 | further debugging may prove unreliable.", file, line, problem->name, msg); | |
895 | xfree (msg); | |
896 | make_cleanup (xfree, reason); | |
897 | } | |
7be570e7 | 898 | |
dec43320 AC |
899 | switch (problem->should_quit) |
900 | { | |
901 | case AUTO_BOOLEAN_AUTO: | |
902 | /* Default (yes/batch case) is to quit GDB. When in batch mode | |
8731e58e AC |
903 | this lessens the likelhood of GDB going into an infinate |
904 | loop. */ | |
e2e0b3e5 | 905 | quit_p = query (_("%s\nQuit this debugging session? "), reason); |
dec43320 AC |
906 | break; |
907 | case AUTO_BOOLEAN_TRUE: | |
908 | quit_p = 1; | |
909 | break; | |
910 | case AUTO_BOOLEAN_FALSE: | |
911 | quit_p = 0; | |
912 | break; | |
913 | default: | |
e2e0b3e5 | 914 | internal_error (__FILE__, __LINE__, _("bad switch")); |
dec43320 AC |
915 | } |
916 | ||
917 | switch (problem->should_dump_core) | |
918 | { | |
919 | case AUTO_BOOLEAN_AUTO: | |
920 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
8731e58e AC |
921 | `dropping' so that it is easier to see that something went |
922 | wrong in GDB. */ | |
e2e0b3e5 | 923 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason); |
dec43320 AC |
924 | break; |
925 | break; | |
926 | case AUTO_BOOLEAN_TRUE: | |
927 | dump_core_p = 1; | |
928 | break; | |
929 | case AUTO_BOOLEAN_FALSE: | |
930 | dump_core_p = 0; | |
931 | break; | |
932 | default: | |
e2e0b3e5 | 933 | internal_error (__FILE__, __LINE__, _("bad switch")); |
dec43320 | 934 | } |
7be570e7 | 935 | |
375fc983 | 936 | if (quit_p) |
7be570e7 JM |
937 | { |
938 | if (dump_core_p) | |
bf1d7d9c | 939 | abort (); /* NOTE: GDB has only four calls to abort(). */ |
375fc983 AC |
940 | else |
941 | exit (1); | |
7be570e7 JM |
942 | } |
943 | else | |
944 | { | |
945 | if (dump_core_p) | |
375fc983 | 946 | { |
9b265ec2 | 947 | #ifdef HAVE_WORKING_FORK |
375fc983 | 948 | if (fork () == 0) |
bf1d7d9c | 949 | abort (); /* NOTE: GDB has only four calls to abort(). */ |
9b265ec2 | 950 | #endif |
375fc983 | 951 | } |
7be570e7 | 952 | } |
96baa820 JM |
953 | |
954 | dejavu = 0; | |
dec43320 AC |
955 | } |
956 | ||
957 | static struct internal_problem internal_error_problem = { | |
958 | "internal-error", AUTO_BOOLEAN_AUTO, AUTO_BOOLEAN_AUTO | |
959 | }; | |
960 | ||
961 | NORETURN void | |
8731e58e | 962 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
963 | { |
964 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
315a522e | 965 | deprecated_throw_reason (RETURN_ERROR); |
c906108c SS |
966 | } |
967 | ||
4ce44c66 | 968 | NORETURN void |
8e65ff28 | 969 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
970 | { |
971 | va_list ap; | |
972 | va_start (ap, string); | |
8e65ff28 | 973 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
974 | va_end (ap); |
975 | } | |
976 | ||
dec43320 | 977 | static struct internal_problem internal_warning_problem = { |
d833db3b | 978 | "internal-warning", AUTO_BOOLEAN_AUTO, AUTO_BOOLEAN_AUTO |
dec43320 AC |
979 | }; |
980 | ||
981 | void | |
8731e58e | 982 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
983 | { |
984 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
985 | } | |
986 | ||
987 | void | |
988 | internal_warning (const char *file, int line, const char *string, ...) | |
989 | { | |
990 | va_list ap; | |
991 | va_start (ap, string); | |
992 | internal_vwarning (file, line, string, ap); | |
993 | va_end (ap); | |
994 | } | |
995 | ||
c906108c SS |
996 | /* Print the system error message for errno, and also mention STRING |
997 | as the file name for which the error was encountered. | |
998 | Then return to command level. */ | |
999 | ||
1000 | NORETURN void | |
6972bc8b | 1001 | perror_with_name (const char *string) |
c906108c SS |
1002 | { |
1003 | char *err; | |
1004 | char *combined; | |
1005 | ||
1006 | err = safe_strerror (errno); | |
1007 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1008 | strcpy (combined, string); | |
1009 | strcat (combined, ": "); | |
1010 | strcat (combined, err); | |
1011 | ||
1012 | /* I understand setting these is a matter of taste. Still, some people | |
1013 | may clear errno but not know about bfd_error. Doing this here is not | |
1014 | unreasonable. */ | |
1015 | bfd_set_error (bfd_error_no_error); | |
1016 | errno = 0; | |
1017 | ||
8a3fe4f8 | 1018 | error (_("%s."), combined); |
c906108c SS |
1019 | } |
1020 | ||
1021 | /* Print the system error message for ERRCODE, and also mention STRING | |
1022 | as the file name for which the error was encountered. */ | |
1023 | ||
1024 | void | |
6972bc8b | 1025 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
1026 | { |
1027 | char *err; | |
1028 | char *combined; | |
1029 | ||
1030 | err = safe_strerror (errcode); | |
1031 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
1032 | strcpy (combined, string); | |
1033 | strcat (combined, ": "); | |
1034 | strcat (combined, err); | |
1035 | ||
1036 | /* We want anything which was printed on stdout to come out first, before | |
1037 | this message. */ | |
1038 | gdb_flush (gdb_stdout); | |
1039 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
1040 | } | |
1041 | ||
1042 | /* Control C eventually causes this to be called, at a convenient time. */ | |
1043 | ||
1044 | void | |
fba45db2 | 1045 | quit (void) |
c906108c | 1046 | { |
7be570e7 JM |
1047 | #ifdef __MSDOS__ |
1048 | /* No steenking SIGINT will ever be coming our way when the | |
1049 | program is resumed. Don't lie. */ | |
e06e2353 | 1050 | fatal ("Quit"); |
7be570e7 | 1051 | #else |
c906108c | 1052 | if (job_control |
8731e58e AC |
1053 | /* If there is no terminal switching for this target, then we can't |
1054 | possibly get screwed by the lack of job control. */ | |
c906108c | 1055 | || current_target.to_terminal_ours == NULL) |
e06e2353 | 1056 | fatal ("Quit"); |
c906108c | 1057 | else |
e06e2353 | 1058 | fatal ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 1059 | #endif |
c906108c SS |
1060 | } |
1061 | ||
c906108c | 1062 | \f |
c906108c SS |
1063 | /* Called when a memory allocation fails, with the number of bytes of |
1064 | memory requested in SIZE. */ | |
1065 | ||
1066 | NORETURN void | |
fba45db2 | 1067 | nomem (long size) |
c906108c SS |
1068 | { |
1069 | if (size > 0) | |
1070 | { | |
8e65ff28 | 1071 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 1072 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 1073 | size); |
c906108c SS |
1074 | } |
1075 | else | |
1076 | { | |
e2e0b3e5 | 1077 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
1078 | } |
1079 | } | |
1080 | ||
c0e61796 AC |
1081 | /* The xmalloc() (libiberty.h) family of memory management routines. |
1082 | ||
1083 | These are like the ISO-C malloc() family except that they implement | |
1084 | consistent semantics and guard against typical memory management | |
7936743b | 1085 | problems. */ |
c0e61796 AC |
1086 | |
1087 | /* NOTE: These are declared using PTR to ensure consistency with | |
1088 | "libiberty.h". xfree() is GDB local. */ | |
1089 | ||
8dbb1c65 | 1090 | PTR /* OK: PTR */ |
c0e61796 AC |
1091 | xmalloc (size_t size) |
1092 | { | |
7936743b AC |
1093 | void *val; |
1094 | ||
1095 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1096 | semantics. It never returns NULL. */ | |
1097 | if (size == 0) | |
1098 | size = 1; | |
1099 | ||
1100 | val = malloc (size); /* OK: malloc */ | |
1101 | if (val == NULL) | |
1102 | nomem (size); | |
1103 | ||
1104 | return (val); | |
c0e61796 | 1105 | } |
c906108c | 1106 | |
5b90c7b5 AC |
1107 | void * |
1108 | xzalloc (size_t size) | |
1109 | { | |
1110 | return xcalloc (1, size); | |
1111 | } | |
1112 | ||
8dbb1c65 AC |
1113 | PTR /* OK: PTR */ |
1114 | xrealloc (PTR ptr, size_t size) /* OK: PTR */ | |
c906108c | 1115 | { |
0efffb96 AC |
1116 | void *val; |
1117 | ||
1118 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1119 | semantics. It never returns NULL. */ | |
1120 | if (size == 0) | |
1121 | size = 1; | |
1122 | ||
1123 | if (ptr != NULL) | |
1124 | val = realloc (ptr, size); /* OK: realloc */ | |
1125 | else | |
1126 | val = malloc (size); /* OK: malloc */ | |
1127 | if (val == NULL) | |
1128 | nomem (size); | |
1129 | ||
1130 | return (val); | |
c906108c | 1131 | } |
b8c9b27d | 1132 | |
8dbb1c65 | 1133 | PTR /* OK: PTR */ |
c0e61796 AC |
1134 | xcalloc (size_t number, size_t size) |
1135 | { | |
aa2ee5f6 AC |
1136 | void *mem; |
1137 | ||
1138 | /* See libiberty/xmalloc.c. This function need's to match that's | |
1139 | semantics. It never returns NULL. */ | |
1140 | if (number == 0 || size == 0) | |
1141 | { | |
1142 | number = 1; | |
1143 | size = 1; | |
1144 | } | |
1145 | ||
1146 | mem = calloc (number, size); /* OK: xcalloc */ | |
1147 | if (mem == NULL) | |
1148 | nomem (number * size); | |
1149 | ||
1150 | return mem; | |
c0e61796 | 1151 | } |
b8c9b27d KB |
1152 | |
1153 | void | |
1154 | xfree (void *ptr) | |
1155 | { | |
2dc74dc1 AC |
1156 | if (ptr != NULL) |
1157 | free (ptr); /* OK: free */ | |
b8c9b27d | 1158 | } |
c906108c | 1159 | \f |
c5aa993b | 1160 | |
76995688 AC |
1161 | /* Like asprintf/vasprintf but get an internal_error if the call |
1162 | fails. */ | |
1163 | ||
9ebf4acf AC |
1164 | char * |
1165 | xstrprintf (const char *format, ...) | |
1166 | { | |
1167 | char *ret; | |
1168 | va_list args; | |
1169 | va_start (args, format); | |
e623b504 | 1170 | ret = xstrvprintf (format, args); |
9ebf4acf AC |
1171 | va_end (args); |
1172 | return ret; | |
1173 | } | |
1174 | ||
76995688 AC |
1175 | void |
1176 | xasprintf (char **ret, const char *format, ...) | |
1177 | { | |
1178 | va_list args; | |
1179 | va_start (args, format); | |
e623b504 | 1180 | (*ret) = xstrvprintf (format, args); |
76995688 AC |
1181 | va_end (args); |
1182 | } | |
1183 | ||
1184 | void | |
1185 | xvasprintf (char **ret, const char *format, va_list ap) | |
1186 | { | |
a552edd9 | 1187 | (*ret) = xstrvprintf (format, ap); |
76995688 AC |
1188 | } |
1189 | ||
e623b504 AC |
1190 | char * |
1191 | xstrvprintf (const char *format, va_list ap) | |
1192 | { | |
1193 | char *ret = NULL; | |
1194 | int status = vasprintf (&ret, format, ap); | |
46e9880c DJ |
1195 | /* NULL is returned when there was a memory allocation problem, or |
1196 | any other error (for instance, a bad format string). A negative | |
1197 | status (the printed length) with a non-NULL buffer should never | |
1198 | happen, but just to be sure. */ | |
1199 | if (ret == NULL || status < 0) | |
1200 | internal_error (__FILE__, __LINE__, _("vasprintf call failed")); | |
e623b504 AC |
1201 | return ret; |
1202 | } | |
76995688 | 1203 | |
bde2058d MK |
1204 | int |
1205 | xsnprintf (char *str, size_t size, const char *format, ...) | |
1206 | { | |
1207 | va_list args; | |
1208 | int ret; | |
1209 | ||
1210 | va_start (args, format); | |
1211 | ret = vsnprintf (str, size, format, args); | |
1212 | gdb_assert (ret < size); | |
1213 | va_end (args); | |
1214 | ||
1215 | return ret; | |
1216 | } | |
1217 | ||
c906108c SS |
1218 | /* My replacement for the read system call. |
1219 | Used like `read' but keeps going if `read' returns too soon. */ | |
1220 | ||
1221 | int | |
fba45db2 | 1222 | myread (int desc, char *addr, int len) |
c906108c | 1223 | { |
52f0bd74 | 1224 | int val; |
c906108c SS |
1225 | int orglen = len; |
1226 | ||
1227 | while (len > 0) | |
1228 | { | |
1229 | val = read (desc, addr, len); | |
1230 | if (val < 0) | |
1231 | return val; | |
1232 | if (val == 0) | |
1233 | return orglen - len; | |
1234 | len -= val; | |
1235 | addr += val; | |
1236 | } | |
1237 | return orglen; | |
1238 | } | |
1239 | \f | |
1240 | /* Make a copy of the string at PTR with SIZE characters | |
1241 | (and add a null character at the end in the copy). | |
1242 | Uses malloc to get the space. Returns the address of the copy. */ | |
1243 | ||
1244 | char * | |
5565b556 | 1245 | savestring (const char *ptr, size_t size) |
c906108c | 1246 | { |
52f0bd74 | 1247 | char *p = (char *) xmalloc (size + 1); |
c906108c SS |
1248 | memcpy (p, ptr, size); |
1249 | p[size] = 0; | |
1250 | return p; | |
1251 | } | |
1252 | ||
c906108c | 1253 | void |
aa1ee363 | 1254 | print_spaces (int n, struct ui_file *file) |
c906108c | 1255 | { |
392a587b | 1256 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1257 | } |
1258 | ||
1259 | /* Print a host address. */ | |
1260 | ||
1261 | void | |
ac16bf07 | 1262 | gdb_print_host_address (const void *addr, struct ui_file *stream) |
c906108c | 1263 | { |
ea8992ce | 1264 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 1265 | } |
c906108c | 1266 | \f |
c5aa993b | 1267 | |
981c7f5a | 1268 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 1269 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
1270 | answer is yes, or default the answer to the specified default |
1271 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
1272 | default answer, or '\0' for no default. | |
cbdeadca JJ |
1273 | CTLSTR is the control string and should end in "? ". It should |
1274 | not say how to answer, because we do that. | |
1275 | ARGS are the arguments passed along with the CTLSTR argument to | |
1276 | printf. */ | |
1277 | ||
bee0189a | 1278 | static int ATTR_FORMAT (printf, 1, 0) |
cbdeadca JJ |
1279 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
1280 | { | |
1281 | int answer; | |
1282 | int ans2; | |
1283 | int retval; | |
1284 | int def_value; | |
1285 | char def_answer, not_def_answer; | |
981c7f5a | 1286 | char *y_string, *n_string, *question; |
cbdeadca JJ |
1287 | |
1288 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
1289 | if (defchar == '\0') |
1290 | { | |
1291 | def_value = 1; | |
1292 | def_answer = 'Y'; | |
1293 | not_def_answer = 'N'; | |
1294 | y_string = "y"; | |
1295 | n_string = "n"; | |
1296 | } | |
1297 | else if (defchar == 'y') | |
cbdeadca JJ |
1298 | { |
1299 | def_value = 1; | |
1300 | def_answer = 'Y'; | |
1301 | not_def_answer = 'N'; | |
1302 | y_string = "[y]"; | |
1303 | n_string = "n"; | |
1304 | } | |
1305 | else | |
1306 | { | |
1307 | def_value = 0; | |
1308 | def_answer = 'N'; | |
1309 | not_def_answer = 'Y'; | |
1310 | y_string = "y"; | |
1311 | n_string = "[n]"; | |
1312 | } | |
1313 | ||
981c7f5a DJ |
1314 | /* Automatically answer the default value if the user did not want |
1315 | prompts. */ | |
1316 | if (! caution) | |
1317 | return def_value; | |
1318 | ||
1319 | /* If input isn't coming from the user directly, just say what | |
1320 | question we're asking, and then answer "yes" automatically. This | |
1321 | way, important error messages don't get lost when talking to GDB | |
1322 | over a pipe. */ | |
1323 | if (! input_from_terminal_p ()) | |
1324 | { | |
1325 | wrap_here (""); | |
1326 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1327 | ||
1328 | printf_filtered (_("(%s or %s) [answered %c; input not from terminal]\n"), | |
1329 | y_string, n_string, def_answer); | |
1330 | gdb_flush (gdb_stdout); | |
1331 | ||
1332 | return def_value; | |
1333 | } | |
1334 | ||
698ba934 DJ |
1335 | /* Automatically answer the default value if input is not from the user |
1336 | directly, or if the user did not want prompts. */ | |
1337 | if (!input_from_terminal_p () || !caution) | |
1338 | return def_value; | |
1339 | ||
9a4105ab | 1340 | if (deprecated_query_hook) |
cbdeadca | 1341 | { |
9a4105ab | 1342 | return deprecated_query_hook (ctlstr, args); |
cbdeadca JJ |
1343 | } |
1344 | ||
981c7f5a DJ |
1345 | /* Format the question outside of the loop, to avoid reusing args. */ |
1346 | question = xstrvprintf (ctlstr, args); | |
1347 | ||
cbdeadca JJ |
1348 | while (1) |
1349 | { | |
1350 | wrap_here (""); /* Flush any buffered output */ | |
1351 | gdb_flush (gdb_stdout); | |
1352 | ||
1353 | if (annotation_level > 1) | |
a3f17187 | 1354 | printf_filtered (("\n\032\032pre-query\n")); |
cbdeadca | 1355 | |
981c7f5a | 1356 | fputs_filtered (question, gdb_stdout); |
a3f17187 | 1357 | printf_filtered (_("(%s or %s) "), y_string, n_string); |
cbdeadca JJ |
1358 | |
1359 | if (annotation_level > 1) | |
a3f17187 | 1360 | printf_filtered (("\n\032\032query\n")); |
cbdeadca JJ |
1361 | |
1362 | wrap_here (""); | |
1363 | gdb_flush (gdb_stdout); | |
1364 | ||
1365 | answer = fgetc (stdin); | |
1366 | clearerr (stdin); /* in case of C-d */ | |
1367 | if (answer == EOF) /* C-d */ | |
1368 | { | |
fa3fd85b | 1369 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
1370 | retval = def_value; |
1371 | break; | |
1372 | } | |
1373 | /* Eat rest of input line, to EOF or newline */ | |
1374 | if (answer != '\n') | |
1375 | do | |
1376 | { | |
1377 | ans2 = fgetc (stdin); | |
1378 | clearerr (stdin); | |
1379 | } | |
1380 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); | |
1381 | ||
1382 | if (answer >= 'a') | |
1383 | answer -= 040; | |
1384 | /* Check answer. For the non-default, the user must specify | |
1385 | the non-default explicitly. */ | |
1386 | if (answer == not_def_answer) | |
1387 | { | |
1388 | retval = !def_value; | |
1389 | break; | |
1390 | } | |
981c7f5a DJ |
1391 | /* Otherwise, if a default was specified, the user may either |
1392 | specify the required input or have it default by entering | |
1393 | nothing. */ | |
1394 | if (answer == def_answer | |
1395 | || (defchar != '\0' && | |
1396 | (answer == '\n' || answer == '\r' || answer == EOF))) | |
cbdeadca JJ |
1397 | { |
1398 | retval = def_value; | |
1399 | break; | |
1400 | } | |
1401 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 1402 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
1403 | y_string, n_string); |
1404 | } | |
1405 | ||
981c7f5a | 1406 | xfree (question); |
cbdeadca | 1407 | if (annotation_level > 1) |
a3f17187 | 1408 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
1409 | return retval; |
1410 | } | |
1411 | \f | |
1412 | ||
1413 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1414 | answer is yes, or 0 if answer is defaulted. | |
1415 | Takes three args which are given to printf to print the question. | |
1416 | The first, a control string, should end in "? ". | |
1417 | It should not say how to answer, because we do that. */ | |
1418 | ||
1419 | int | |
1420 | nquery (const char *ctlstr, ...) | |
1421 | { | |
1422 | va_list args; | |
1423 | ||
1424 | va_start (args, ctlstr); | |
1425 | return defaulted_query (ctlstr, 'n', args); | |
1426 | va_end (args); | |
1427 | } | |
1428 | ||
1429 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1430 | answer is yes, or 1 if answer is defaulted. | |
1431 | Takes three args which are given to printf to print the question. | |
1432 | The first, a control string, should end in "? ". | |
1433 | It should not say how to answer, because we do that. */ | |
1434 | ||
1435 | int | |
1436 | yquery (const char *ctlstr, ...) | |
1437 | { | |
1438 | va_list args; | |
1439 | ||
1440 | va_start (args, ctlstr); | |
1441 | return defaulted_query (ctlstr, 'y', args); | |
1442 | va_end (args); | |
1443 | } | |
1444 | ||
981c7f5a DJ |
1445 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
1446 | Takes three args which are given to printf to print the question. | |
1447 | The first, a control string, should end in "? ". | |
1448 | It should not say how to answer, because we do that. */ | |
1449 | ||
1450 | int | |
1451 | query (const char *ctlstr, ...) | |
1452 | { | |
1453 | va_list args; | |
1454 | ||
1455 | va_start (args, ctlstr); | |
1456 | return defaulted_query (ctlstr, '\0', args); | |
1457 | va_end (args); | |
1458 | } | |
1459 | ||
234b45d4 KB |
1460 | /* Print an error message saying that we couldn't make sense of a |
1461 | \^mumble sequence in a string or character constant. START and END | |
1462 | indicate a substring of some larger string that contains the | |
1463 | erroneous backslash sequence, missing the initial backslash. */ | |
1464 | static NORETURN int | |
1465 | no_control_char_error (const char *start, const char *end) | |
1466 | { | |
1467 | int len = end - start; | |
1468 | char *copy = alloca (end - start + 1); | |
1469 | ||
1470 | memcpy (copy, start, len); | |
1471 | copy[len] = '\0'; | |
1472 | ||
8a3fe4f8 | 1473 | error (_("There is no control character `\\%s' in the `%s' character set."), |
8731e58e | 1474 | copy, target_charset ()); |
234b45d4 KB |
1475 | } |
1476 | ||
c906108c SS |
1477 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1478 | containing a pointer to the string to parse. That pointer | |
1479 | should point to the character after the \. That pointer | |
1480 | is updated past the characters we use. The value of the | |
1481 | escape sequence is returned. | |
1482 | ||
1483 | A negative value means the sequence \ newline was seen, | |
1484 | which is supposed to be equivalent to nothing at all. | |
1485 | ||
1486 | If \ is followed by a null character, we return a negative | |
1487 | value and leave the string pointer pointing at the null character. | |
1488 | ||
1489 | If \ is followed by 000, we return 0 and leave the string pointer | |
1490 | after the zeros. A value of 0 does not mean end of string. */ | |
1491 | ||
1492 | int | |
fba45db2 | 1493 | parse_escape (char **string_ptr) |
c906108c | 1494 | { |
234b45d4 | 1495 | int target_char; |
52f0bd74 | 1496 | int c = *(*string_ptr)++; |
234b45d4 KB |
1497 | if (c_parse_backslash (c, &target_char)) |
1498 | return target_char; | |
8731e58e AC |
1499 | else |
1500 | switch (c) | |
234b45d4 | 1501 | { |
8731e58e AC |
1502 | case '\n': |
1503 | return -2; | |
1504 | case 0: | |
1505 | (*string_ptr)--; | |
1506 | return 0; | |
1507 | case '^': | |
1508 | { | |
1509 | /* Remember where this escape sequence started, for reporting | |
1510 | errors. */ | |
1511 | char *sequence_start_pos = *string_ptr - 1; | |
234b45d4 | 1512 | |
8731e58e AC |
1513 | c = *(*string_ptr)++; |
1514 | ||
1515 | if (c == '?') | |
1516 | { | |
1517 | /* XXXCHARSET: What is `delete' in the host character set? */ | |
1518 | c = 0177; | |
1519 | ||
1520 | if (!host_char_to_target (c, &target_char)) | |
8a3fe4f8 AC |
1521 | error (_("There is no character corresponding to `Delete' " |
1522 | "in the target character set `%s'."), host_charset ()); | |
8731e58e AC |
1523 | |
1524 | return target_char; | |
1525 | } | |
1526 | else if (c == '\\') | |
1527 | target_char = parse_escape (string_ptr); | |
1528 | else | |
1529 | { | |
1530 | if (!host_char_to_target (c, &target_char)) | |
1531 | no_control_char_error (sequence_start_pos, *string_ptr); | |
1532 | } | |
1533 | ||
1534 | /* Now target_char is something like `c', and we want to find | |
1535 | its control-character equivalent. */ | |
1536 | if (!target_char_to_control_char (target_char, &target_char)) | |
1537 | no_control_char_error (sequence_start_pos, *string_ptr); | |
1538 | ||
1539 | return target_char; | |
1540 | } | |
1541 | ||
1542 | /* XXXCHARSET: we need to use isdigit and value-of-digit | |
1543 | methods of the host character set here. */ | |
1544 | ||
1545 | case '0': | |
1546 | case '1': | |
1547 | case '2': | |
1548 | case '3': | |
1549 | case '4': | |
1550 | case '5': | |
1551 | case '6': | |
1552 | case '7': | |
1553 | { | |
aa1ee363 AC |
1554 | int i = c - '0'; |
1555 | int count = 0; | |
8731e58e AC |
1556 | while (++count < 3) |
1557 | { | |
5cb316ef AC |
1558 | c = (**string_ptr); |
1559 | if (c >= '0' && c <= '7') | |
8731e58e | 1560 | { |
5cb316ef | 1561 | (*string_ptr)++; |
8731e58e AC |
1562 | i *= 8; |
1563 | i += c - '0'; | |
1564 | } | |
1565 | else | |
1566 | { | |
8731e58e AC |
1567 | break; |
1568 | } | |
1569 | } | |
1570 | return i; | |
1571 | } | |
1572 | default: | |
1573 | if (!host_char_to_target (c, &target_char)) | |
1574 | error | |
1575 | ("The escape sequence `\%c' is equivalent to plain `%c', which" | |
1576 | " has no equivalent\n" "in the `%s' character set.", c, c, | |
1577 | target_charset ()); | |
1578 | return target_char; | |
c906108c | 1579 | } |
c906108c SS |
1580 | } |
1581 | \f | |
1582 | /* Print the character C on STREAM as part of the contents of a literal | |
1583 | string whose delimiter is QUOTER. Note that this routine should only | |
1584 | be call for printing things which are independent of the language | |
1585 | of the program being debugged. */ | |
1586 | ||
43e526b9 | 1587 | static void |
74f832da | 1588 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
bee0189a DJ |
1589 | void (*do_fprintf) (struct ui_file *, const char *, ...) |
1590 | ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter) | |
c906108c SS |
1591 | { |
1592 | ||
1593 | c &= 0xFF; /* Avoid sign bit follies */ | |
1594 | ||
c5aa993b JM |
1595 | if (c < 0x20 || /* Low control chars */ |
1596 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1597 | (sevenbit_strings && c >= 0x80)) | |
1598 | { /* high order bit set */ | |
1599 | switch (c) | |
1600 | { | |
1601 | case '\n': | |
43e526b9 | 1602 | do_fputs ("\\n", stream); |
c5aa993b JM |
1603 | break; |
1604 | case '\b': | |
43e526b9 | 1605 | do_fputs ("\\b", stream); |
c5aa993b JM |
1606 | break; |
1607 | case '\t': | |
43e526b9 | 1608 | do_fputs ("\\t", stream); |
c5aa993b JM |
1609 | break; |
1610 | case '\f': | |
43e526b9 | 1611 | do_fputs ("\\f", stream); |
c5aa993b JM |
1612 | break; |
1613 | case '\r': | |
43e526b9 | 1614 | do_fputs ("\\r", stream); |
c5aa993b JM |
1615 | break; |
1616 | case '\033': | |
43e526b9 | 1617 | do_fputs ("\\e", stream); |
c5aa993b JM |
1618 | break; |
1619 | case '\007': | |
43e526b9 | 1620 | do_fputs ("\\a", stream); |
c5aa993b JM |
1621 | break; |
1622 | default: | |
43e526b9 | 1623 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1624 | break; |
1625 | } | |
1626 | } | |
1627 | else | |
1628 | { | |
1629 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1630 | do_fputs ("\\", stream); |
1631 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1632 | } |
c906108c | 1633 | } |
43e526b9 JM |
1634 | |
1635 | /* Print the character C on STREAM as part of the contents of a | |
1636 | literal string whose delimiter is QUOTER. Note that these routines | |
1637 | should only be call for printing things which are independent of | |
1638 | the language of the program being debugged. */ | |
1639 | ||
1640 | void | |
fba45db2 | 1641 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1642 | { |
1643 | while (*str) | |
1644 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1645 | } | |
1646 | ||
1647 | void | |
fba45db2 | 1648 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1649 | { |
1650 | while (*str) | |
1651 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1652 | } | |
1653 | ||
0876f84a DJ |
1654 | void |
1655 | fputstrn_filtered (const char *str, int n, int quoter, | |
1656 | struct ui_file *stream) | |
1657 | { | |
1658 | int i; | |
1659 | for (i = 0; i < n; i++) | |
1660 | printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter); | |
1661 | } | |
1662 | ||
43e526b9 | 1663 | void |
8731e58e AC |
1664 | fputstrn_unfiltered (const char *str, int n, int quoter, |
1665 | struct ui_file *stream) | |
43e526b9 JM |
1666 | { |
1667 | int i; | |
1668 | for (i = 0; i < n; i++) | |
1669 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1670 | } | |
c906108c | 1671 | \f |
c5aa993b | 1672 | |
c906108c SS |
1673 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1674 | static unsigned int lines_per_page; | |
920d2a44 AC |
1675 | static void |
1676 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1677 | struct cmd_list_element *c, const char *value) | |
1678 | { | |
1679 | fprintf_filtered (file, _("\ | |
1680 | Number of lines gdb thinks are in a page is %s.\n"), | |
1681 | value); | |
1682 | } | |
eb0d3137 | 1683 | |
cbfbd72a | 1684 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1685 | static unsigned int chars_per_line; |
920d2a44 AC |
1686 | static void |
1687 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1688 | struct cmd_list_element *c, const char *value) | |
1689 | { | |
1690 | fprintf_filtered (file, _("\ | |
1691 | Number of characters gdb thinks are in a line is %s.\n"), | |
1692 | value); | |
1693 | } | |
eb0d3137 | 1694 | |
c906108c SS |
1695 | /* Current count of lines printed on this page, chars on this line. */ |
1696 | static unsigned int lines_printed, chars_printed; | |
1697 | ||
1698 | /* Buffer and start column of buffered text, for doing smarter word- | |
1699 | wrapping. When someone calls wrap_here(), we start buffering output | |
1700 | that comes through fputs_filtered(). If we see a newline, we just | |
1701 | spit it out and forget about the wrap_here(). If we see another | |
1702 | wrap_here(), we spit it out and remember the newer one. If we see | |
1703 | the end of the line, we spit out a newline, the indent, and then | |
1704 | the buffered output. */ | |
1705 | ||
1706 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1707 | are waiting to be output (they have already been counted in chars_printed). | |
1708 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1709 | static char *wrap_buffer; | |
1710 | ||
1711 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1712 | static char *wrap_pointer; | |
1713 | ||
1714 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1715 | is non-zero. */ | |
1716 | static char *wrap_indent; | |
1717 | ||
1718 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1719 | is not in effect. */ | |
1720 | static int wrap_column; | |
c906108c | 1721 | \f |
c5aa993b | 1722 | |
eb0d3137 MK |
1723 | /* Inialize the number of lines per page and chars per line. */ |
1724 | ||
c906108c | 1725 | void |
fba45db2 | 1726 | init_page_info (void) |
c906108c SS |
1727 | { |
1728 | #if defined(TUI) | |
5ecb1806 | 1729 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1730 | #endif |
1731 | { | |
eb0d3137 | 1732 | int rows, cols; |
c906108c | 1733 | |
ec145965 EZ |
1734 | #if defined(__GO32__) |
1735 | rows = ScreenRows (); | |
1736 | cols = ScreenCols (); | |
1737 | lines_per_page = rows; | |
1738 | chars_per_line = cols; | |
1739 | #else | |
eb0d3137 MK |
1740 | /* Make sure Readline has initialized its terminal settings. */ |
1741 | rl_reset_terminal (NULL); | |
c906108c | 1742 | |
eb0d3137 MK |
1743 | /* Get the screen size from Readline. */ |
1744 | rl_get_screen_size (&rows, &cols); | |
1745 | lines_per_page = rows; | |
1746 | chars_per_line = cols; | |
c906108c | 1747 | |
eb0d3137 MK |
1748 | /* Readline should have fetched the termcap entry for us. */ |
1749 | if (tgetnum ("li") < 0 || getenv ("EMACS")) | |
1750 | { | |
1751 | /* The number of lines per page is not mentioned in the | |
1752 | terminal description. This probably means that paging is | |
1753 | not useful (e.g. emacs shell window), so disable paging. */ | |
1754 | lines_per_page = UINT_MAX; | |
1755 | } | |
c906108c | 1756 | |
eb0d3137 | 1757 | /* FIXME: Get rid of this junk. */ |
c906108c | 1758 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) |
c906108c SS |
1759 | SIGWINCH_HANDLER (SIGWINCH); |
1760 | #endif | |
eb0d3137 | 1761 | |
c906108c | 1762 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1763 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1764 | lines_per_page = UINT_MAX; |
eb0d3137 | 1765 | #endif |
ec145965 | 1766 | } |
eb0d3137 MK |
1767 | |
1768 | set_screen_size (); | |
c5aa993b | 1769 | set_width (); |
c906108c SS |
1770 | } |
1771 | ||
eb0d3137 MK |
1772 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1773 | ||
1774 | static void | |
1775 | set_screen_size (void) | |
1776 | { | |
1777 | int rows = lines_per_page; | |
1778 | int cols = chars_per_line; | |
1779 | ||
1780 | if (rows <= 0) | |
1781 | rows = INT_MAX; | |
1782 | ||
1783 | if (cols <= 0) | |
0caa462c | 1784 | cols = INT_MAX; |
eb0d3137 MK |
1785 | |
1786 | /* Update Readline's idea of the terminal size. */ | |
1787 | rl_set_screen_size (rows, cols); | |
1788 | } | |
1789 | ||
1790 | /* Reinitialize WRAP_BUFFER according to the current value of | |
1791 | CHARS_PER_LINE. */ | |
1792 | ||
c906108c | 1793 | static void |
fba45db2 | 1794 | set_width (void) |
c906108c SS |
1795 | { |
1796 | if (chars_per_line == 0) | |
c5aa993b | 1797 | init_page_info (); |
c906108c SS |
1798 | |
1799 | if (!wrap_buffer) | |
1800 | { | |
1801 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1802 | wrap_buffer[0] = '\0'; | |
1803 | } | |
1804 | else | |
1805 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 1806 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
1807 | } |
1808 | ||
c5aa993b | 1809 | static void |
fba45db2 | 1810 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1811 | { |
eb0d3137 | 1812 | set_screen_size (); |
c906108c SS |
1813 | set_width (); |
1814 | } | |
1815 | ||
eb0d3137 MK |
1816 | static void |
1817 | set_height_command (char *args, int from_tty, struct cmd_list_element *c) | |
1818 | { | |
1819 | set_screen_size (); | |
1820 | } | |
1821 | ||
c906108c SS |
1822 | /* Wait, so the user can read what's on the screen. Prompt the user |
1823 | to continue by pressing RETURN. */ | |
1824 | ||
1825 | static void | |
fba45db2 | 1826 | prompt_for_continue (void) |
c906108c SS |
1827 | { |
1828 | char *ignore; | |
1829 | char cont_prompt[120]; | |
1830 | ||
1831 | if (annotation_level > 1) | |
a3f17187 | 1832 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
1833 | |
1834 | strcpy (cont_prompt, | |
1835 | "---Type <return> to continue, or q <return> to quit---"); | |
1836 | if (annotation_level > 1) | |
1837 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1838 | ||
1839 | /* We must do this *before* we call gdb_readline, else it will eventually | |
1840 | call us -- thinking that we're trying to print beyond the end of the | |
1841 | screen. */ | |
1842 | reinitialize_more_filter (); | |
1843 | ||
1844 | immediate_quit++; | |
1845 | /* On a real operating system, the user can quit with SIGINT. | |
1846 | But not on GO32. | |
1847 | ||
1848 | 'q' is provided on all systems so users don't have to change habits | |
1849 | from system to system, and because telling them what to do in | |
1850 | the prompt is more user-friendly than expecting them to think of | |
1851 | SIGINT. */ | |
1852 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
1853 | whereas control-C to gdb_readline will cause the user to get dumped | |
1854 | out to DOS. */ | |
b4f5539f | 1855 | ignore = gdb_readline_wrapper (cont_prompt); |
c906108c SS |
1856 | |
1857 | if (annotation_level > 1) | |
a3f17187 | 1858 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c SS |
1859 | |
1860 | if (ignore) | |
1861 | { | |
1862 | char *p = ignore; | |
1863 | while (*p == ' ' || *p == '\t') | |
1864 | ++p; | |
1865 | if (p[0] == 'q') | |
362646f5 | 1866 | async_request_quit (0); |
b8c9b27d | 1867 | xfree (ignore); |
c906108c SS |
1868 | } |
1869 | immediate_quit--; | |
1870 | ||
1871 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1872 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1873 | reinitialize_more_filter (); | |
1874 | ||
1875 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ | |
1876 | } | |
1877 | ||
1878 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
1879 | ||
1880 | void | |
fba45db2 | 1881 | reinitialize_more_filter (void) |
c906108c SS |
1882 | { |
1883 | lines_printed = 0; | |
1884 | chars_printed = 0; | |
1885 | } | |
1886 | ||
1887 | /* Indicate that if the next sequence of characters overflows the line, | |
1888 | a newline should be inserted here rather than when it hits the end. | |
1889 | If INDENT is non-null, it is a string to be printed to indent the | |
1890 | wrapped part on the next line. INDENT must remain accessible until | |
1891 | the next call to wrap_here() or until a newline is printed through | |
1892 | fputs_filtered(). | |
1893 | ||
1894 | If the line is already overfull, we immediately print a newline and | |
1895 | the indentation, and disable further wrapping. | |
1896 | ||
1897 | If we don't know the width of lines, but we know the page height, | |
1898 | we must not wrap words, but should still keep track of newlines | |
1899 | that were explicitly printed. | |
1900 | ||
1901 | INDENT should not contain tabs, as that will mess up the char count | |
1902 | on the next line. FIXME. | |
1903 | ||
1904 | This routine is guaranteed to force out any output which has been | |
1905 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1906 | used to force out output from the wrap_buffer. */ | |
1907 | ||
1908 | void | |
fba45db2 | 1909 | wrap_here (char *indent) |
c906108c SS |
1910 | { |
1911 | /* This should have been allocated, but be paranoid anyway. */ | |
1912 | if (!wrap_buffer) | |
e2e0b3e5 | 1913 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
1914 | |
1915 | if (wrap_buffer[0]) | |
1916 | { | |
1917 | *wrap_pointer = '\0'; | |
1918 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1919 | } | |
1920 | wrap_pointer = wrap_buffer; | |
1921 | wrap_buffer[0] = '\0'; | |
c5aa993b | 1922 | if (chars_per_line == UINT_MAX) /* No line overflow checking */ |
c906108c SS |
1923 | { |
1924 | wrap_column = 0; | |
1925 | } | |
1926 | else if (chars_printed >= chars_per_line) | |
1927 | { | |
1928 | puts_filtered ("\n"); | |
1929 | if (indent != NULL) | |
1930 | puts_filtered (indent); | |
1931 | wrap_column = 0; | |
1932 | } | |
1933 | else | |
1934 | { | |
1935 | wrap_column = chars_printed; | |
1936 | if (indent == NULL) | |
1937 | wrap_indent = ""; | |
1938 | else | |
1939 | wrap_indent = indent; | |
1940 | } | |
1941 | } | |
1942 | ||
4a351cef AF |
1943 | /* Print input string to gdb_stdout, filtered, with wrap, |
1944 | arranging strings in columns of n chars. String can be | |
1945 | right or left justified in the column. Never prints | |
1946 | trailing spaces. String should never be longer than | |
1947 | width. FIXME: this could be useful for the EXAMINE | |
1948 | command, which currently doesn't tabulate very well */ | |
1949 | ||
1950 | void | |
1951 | puts_filtered_tabular (char *string, int width, int right) | |
1952 | { | |
1953 | int spaces = 0; | |
1954 | int stringlen; | |
1955 | char *spacebuf; | |
1956 | ||
1957 | gdb_assert (chars_per_line > 0); | |
1958 | if (chars_per_line == UINT_MAX) | |
1959 | { | |
1960 | fputs_filtered (string, gdb_stdout); | |
1961 | fputs_filtered ("\n", gdb_stdout); | |
1962 | return; | |
1963 | } | |
1964 | ||
1965 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
1966 | fputs_filtered ("\n", gdb_stdout); | |
1967 | ||
1968 | if (width >= chars_per_line) | |
1969 | width = chars_per_line - 1; | |
1970 | ||
1971 | stringlen = strlen (string); | |
1972 | ||
1973 | if (chars_printed > 0) | |
1974 | spaces = width - (chars_printed - 1) % width - 1; | |
1975 | if (right) | |
1976 | spaces += width - stringlen; | |
1977 | ||
1978 | spacebuf = alloca (spaces + 1); | |
1979 | spacebuf[spaces] = '\0'; | |
1980 | while (spaces--) | |
1981 | spacebuf[spaces] = ' '; | |
1982 | ||
1983 | fputs_filtered (spacebuf, gdb_stdout); | |
1984 | fputs_filtered (string, gdb_stdout); | |
1985 | } | |
1986 | ||
1987 | ||
c906108c SS |
1988 | /* Ensure that whatever gets printed next, using the filtered output |
1989 | commands, starts at the beginning of the line. I.E. if there is | |
1990 | any pending output for the current line, flush it and start a new | |
1991 | line. Otherwise do nothing. */ | |
1992 | ||
1993 | void | |
fba45db2 | 1994 | begin_line (void) |
c906108c SS |
1995 | { |
1996 | if (chars_printed > 0) | |
1997 | { | |
1998 | puts_filtered ("\n"); | |
1999 | } | |
2000 | } | |
2001 | ||
ac9a91a7 | 2002 | |
c906108c SS |
2003 | /* Like fputs but if FILTER is true, pause after every screenful. |
2004 | ||
2005 | Regardless of FILTER can wrap at points other than the final | |
2006 | character of a line. | |
2007 | ||
2008 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
2009 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
2010 | anything. | |
2011 | ||
2012 | Note that a longjmp to top level may occur in this routine (only if | |
2013 | FILTER is true) (since prompt_for_continue may do so) so this | |
2014 | routine should not be called when cleanups are not in place. */ | |
2015 | ||
2016 | static void | |
fba45db2 KB |
2017 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
2018 | int filter) | |
c906108c SS |
2019 | { |
2020 | const char *lineptr; | |
2021 | ||
2022 | if (linebuffer == 0) | |
2023 | return; | |
2024 | ||
2025 | /* Don't do any filtering if it is disabled. */ | |
7a292a7a | 2026 | if ((stream != gdb_stdout) || !pagination_enabled |
c5aa993b | 2027 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX)) |
c906108c SS |
2028 | { |
2029 | fputs_unfiltered (linebuffer, stream); | |
2030 | return; | |
2031 | } | |
2032 | ||
2033 | /* Go through and output each character. Show line extension | |
2034 | when this is necessary; prompt user for new page when this is | |
2035 | necessary. */ | |
c5aa993b | 2036 | |
c906108c SS |
2037 | lineptr = linebuffer; |
2038 | while (*lineptr) | |
2039 | { | |
2040 | /* Possible new page. */ | |
8731e58e | 2041 | if (filter && (lines_printed >= lines_per_page - 1)) |
c906108c SS |
2042 | prompt_for_continue (); |
2043 | ||
2044 | while (*lineptr && *lineptr != '\n') | |
2045 | { | |
2046 | /* Print a single line. */ | |
2047 | if (*lineptr == '\t') | |
2048 | { | |
2049 | if (wrap_column) | |
2050 | *wrap_pointer++ = '\t'; | |
2051 | else | |
2052 | fputc_unfiltered ('\t', stream); | |
2053 | /* Shifting right by 3 produces the number of tab stops | |
2054 | we have already passed, and then adding one and | |
c5aa993b | 2055 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
2056 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
2057 | lineptr++; | |
2058 | } | |
2059 | else | |
2060 | { | |
2061 | if (wrap_column) | |
2062 | *wrap_pointer++ = *lineptr; | |
2063 | else | |
c5aa993b | 2064 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
2065 | chars_printed++; |
2066 | lineptr++; | |
2067 | } | |
c5aa993b | 2068 | |
c906108c SS |
2069 | if (chars_printed >= chars_per_line) |
2070 | { | |
2071 | unsigned int save_chars = chars_printed; | |
2072 | ||
2073 | chars_printed = 0; | |
2074 | lines_printed++; | |
2075 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
2076 | if chars_per_line is right, we probably just overflowed |
2077 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
2078 | if (wrap_column) |
2079 | fputc_unfiltered ('\n', stream); | |
2080 | ||
2081 | /* Possible new page. */ | |
2082 | if (lines_printed >= lines_per_page - 1) | |
2083 | prompt_for_continue (); | |
2084 | ||
2085 | /* Now output indentation and wrapped string */ | |
2086 | if (wrap_column) | |
2087 | { | |
2088 | fputs_unfiltered (wrap_indent, stream); | |
8731e58e | 2089 | *wrap_pointer = '\0'; /* Null-terminate saved stuff */ |
c5aa993b | 2090 | fputs_unfiltered (wrap_buffer, stream); /* and eject it */ |
c906108c SS |
2091 | /* FIXME, this strlen is what prevents wrap_indent from |
2092 | containing tabs. However, if we recurse to print it | |
2093 | and count its chars, we risk trouble if wrap_indent is | |
2094 | longer than (the user settable) chars_per_line. | |
2095 | Note also that this can set chars_printed > chars_per_line | |
2096 | if we are printing a long string. */ | |
2097 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 2098 | + (save_chars - wrap_column); |
c906108c SS |
2099 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
2100 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
2101 | wrap_column = 0; /* And disable fancy wrap */ |
2102 | } | |
c906108c SS |
2103 | } |
2104 | } | |
2105 | ||
2106 | if (*lineptr == '\n') | |
2107 | { | |
2108 | chars_printed = 0; | |
c5aa993b | 2109 | wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */ |
c906108c SS |
2110 | lines_printed++; |
2111 | fputc_unfiltered ('\n', stream); | |
2112 | lineptr++; | |
2113 | } | |
2114 | } | |
2115 | } | |
2116 | ||
2117 | void | |
fba45db2 | 2118 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
2119 | { |
2120 | fputs_maybe_filtered (linebuffer, stream, 1); | |
2121 | } | |
2122 | ||
2123 | int | |
fba45db2 | 2124 | putchar_unfiltered (int c) |
c906108c | 2125 | { |
11cf8741 | 2126 | char buf = c; |
d9fcf2fb | 2127 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
2128 | return c; |
2129 | } | |
2130 | ||
d1f4cff8 AC |
2131 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
2132 | May return nonlocally. */ | |
2133 | ||
2134 | int | |
2135 | putchar_filtered (int c) | |
2136 | { | |
2137 | return fputc_filtered (c, gdb_stdout); | |
2138 | } | |
2139 | ||
c906108c | 2140 | int |
fba45db2 | 2141 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 2142 | { |
11cf8741 | 2143 | char buf = c; |
d9fcf2fb | 2144 | ui_file_write (stream, &buf, 1); |
c906108c SS |
2145 | return c; |
2146 | } | |
2147 | ||
2148 | int | |
fba45db2 | 2149 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
2150 | { |
2151 | char buf[2]; | |
2152 | ||
2153 | buf[0] = c; | |
2154 | buf[1] = 0; | |
2155 | fputs_filtered (buf, stream); | |
2156 | return c; | |
2157 | } | |
2158 | ||
2159 | /* puts_debug is like fputs_unfiltered, except it prints special | |
2160 | characters in printable fashion. */ | |
2161 | ||
2162 | void | |
fba45db2 | 2163 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
2164 | { |
2165 | int ch; | |
2166 | ||
2167 | /* Print prefix and suffix after each line. */ | |
2168 | static int new_line = 1; | |
2169 | static int return_p = 0; | |
2170 | static char *prev_prefix = ""; | |
2171 | static char *prev_suffix = ""; | |
2172 | ||
2173 | if (*string == '\n') | |
2174 | return_p = 0; | |
2175 | ||
2176 | /* If the prefix is changing, print the previous suffix, a new line, | |
2177 | and the new prefix. */ | |
c5aa993b | 2178 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2179 | { |
9846de1b JM |
2180 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2181 | fputs_unfiltered ("\n", gdb_stdlog); | |
2182 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2183 | } |
2184 | ||
2185 | /* Print prefix if we printed a newline during the previous call. */ | |
2186 | if (new_line) | |
2187 | { | |
2188 | new_line = 0; | |
9846de1b | 2189 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2190 | } |
2191 | ||
2192 | prev_prefix = prefix; | |
2193 | prev_suffix = suffix; | |
2194 | ||
2195 | /* Output characters in a printable format. */ | |
2196 | while ((ch = *string++) != '\0') | |
2197 | { | |
2198 | switch (ch) | |
c5aa993b | 2199 | { |
c906108c SS |
2200 | default: |
2201 | if (isprint (ch)) | |
9846de1b | 2202 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2203 | |
2204 | else | |
9846de1b | 2205 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2206 | break; |
2207 | ||
c5aa993b JM |
2208 | case '\\': |
2209 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2210 | break; | |
2211 | case '\b': | |
2212 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2213 | break; | |
2214 | case '\f': | |
2215 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2216 | break; | |
2217 | case '\n': | |
2218 | new_line = 1; | |
2219 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2220 | break; | |
2221 | case '\r': | |
2222 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2223 | break; | |
2224 | case '\t': | |
2225 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2226 | break; | |
2227 | case '\v': | |
2228 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2229 | break; | |
2230 | } | |
c906108c SS |
2231 | |
2232 | return_p = ch == '\r'; | |
2233 | } | |
2234 | ||
2235 | /* Print suffix if we printed a newline. */ | |
2236 | if (new_line) | |
2237 | { | |
9846de1b JM |
2238 | fputs_unfiltered (suffix, gdb_stdlog); |
2239 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2240 | } |
2241 | } | |
2242 | ||
2243 | ||
2244 | /* Print a variable number of ARGS using format FORMAT. If this | |
2245 | information is going to put the amount written (since the last call | |
2246 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2247 | call prompt_for_continue to get the users permision to continue. | |
2248 | ||
2249 | Unlike fprintf, this function does not return a value. | |
2250 | ||
2251 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2252 | fprintf (takes a stream to write on), and printf (the usual). | |
2253 | ||
2254 | Note also that a longjmp to top level may occur in this routine | |
2255 | (since prompt_for_continue may do so) so this routine should not be | |
2256 | called when cleanups are not in place. */ | |
2257 | ||
2258 | static void | |
fba45db2 KB |
2259 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2260 | va_list args, int filter) | |
c906108c SS |
2261 | { |
2262 | char *linebuffer; | |
2263 | struct cleanup *old_cleanups; | |
2264 | ||
e623b504 | 2265 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2266 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2267 | fputs_maybe_filtered (linebuffer, stream, filter); |
2268 | do_cleanups (old_cleanups); | |
2269 | } | |
2270 | ||
2271 | ||
2272 | void | |
fba45db2 | 2273 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2274 | { |
2275 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2276 | } | |
2277 | ||
2278 | void | |
fba45db2 | 2279 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2280 | { |
2281 | char *linebuffer; | |
2282 | struct cleanup *old_cleanups; | |
2283 | ||
e623b504 | 2284 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2285 | old_cleanups = make_cleanup (xfree, linebuffer); |
75feb17d DJ |
2286 | if (debug_timestamp && stream == gdb_stdlog) |
2287 | { | |
2288 | struct timeval tm; | |
2289 | char *timestamp; | |
6e5abd65 | 2290 | int len, need_nl; |
75feb17d DJ |
2291 | |
2292 | gettimeofday (&tm, NULL); | |
6e5abd65 PA |
2293 | |
2294 | len = strlen (linebuffer); | |
2295 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); | |
2296 | ||
2297 | timestamp = xstrprintf ("%ld:%ld %s%s", | |
2298 | (long) tm.tv_sec, (long) tm.tv_usec, | |
2299 | linebuffer, | |
2300 | need_nl ? "\n": ""); | |
75feb17d DJ |
2301 | make_cleanup (xfree, timestamp); |
2302 | fputs_unfiltered (timestamp, stream); | |
2303 | } | |
6e5abd65 PA |
2304 | else |
2305 | fputs_unfiltered (linebuffer, stream); | |
c906108c SS |
2306 | do_cleanups (old_cleanups); |
2307 | } | |
2308 | ||
2309 | void | |
fba45db2 | 2310 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2311 | { |
2312 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2313 | } | |
2314 | ||
2315 | void | |
fba45db2 | 2316 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2317 | { |
2318 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2319 | } | |
2320 | ||
c906108c | 2321 | void |
8731e58e | 2322 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2323 | { |
2324 | va_list args; | |
c906108c | 2325 | va_start (args, format); |
c906108c SS |
2326 | vfprintf_filtered (stream, format, args); |
2327 | va_end (args); | |
2328 | } | |
2329 | ||
c906108c | 2330 | void |
8731e58e | 2331 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2332 | { |
2333 | va_list args; | |
c906108c | 2334 | va_start (args, format); |
c906108c SS |
2335 | vfprintf_unfiltered (stream, format, args); |
2336 | va_end (args); | |
2337 | } | |
2338 | ||
2339 | /* Like fprintf_filtered, but prints its result indented. | |
2340 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2341 | ||
c906108c | 2342 | void |
8731e58e AC |
2343 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2344 | ...) | |
c906108c SS |
2345 | { |
2346 | va_list args; | |
c906108c | 2347 | va_start (args, format); |
c906108c SS |
2348 | print_spaces_filtered (spaces, stream); |
2349 | ||
2350 | vfprintf_filtered (stream, format, args); | |
2351 | va_end (args); | |
2352 | } | |
2353 | ||
2354 | ||
c906108c | 2355 | void |
8731e58e | 2356 | printf_filtered (const char *format, ...) |
c906108c SS |
2357 | { |
2358 | va_list args; | |
c906108c | 2359 | va_start (args, format); |
c906108c SS |
2360 | vfprintf_filtered (gdb_stdout, format, args); |
2361 | va_end (args); | |
2362 | } | |
2363 | ||
2364 | ||
c906108c | 2365 | void |
8731e58e | 2366 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2367 | { |
2368 | va_list args; | |
c906108c | 2369 | va_start (args, format); |
c906108c SS |
2370 | vfprintf_unfiltered (gdb_stdout, format, args); |
2371 | va_end (args); | |
2372 | } | |
2373 | ||
2374 | /* Like printf_filtered, but prints it's result indented. | |
2375 | Called as printfi_filtered (spaces, format, ...); */ | |
2376 | ||
c906108c | 2377 | void |
8731e58e | 2378 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2379 | { |
2380 | va_list args; | |
c906108c | 2381 | va_start (args, format); |
c906108c SS |
2382 | print_spaces_filtered (spaces, gdb_stdout); |
2383 | vfprintf_filtered (gdb_stdout, format, args); | |
2384 | va_end (args); | |
2385 | } | |
2386 | ||
2387 | /* Easy -- but watch out! | |
2388 | ||
2389 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2390 | This one doesn't, and had better not! */ | |
2391 | ||
2392 | void | |
fba45db2 | 2393 | puts_filtered (const char *string) |
c906108c SS |
2394 | { |
2395 | fputs_filtered (string, gdb_stdout); | |
2396 | } | |
2397 | ||
2398 | void | |
fba45db2 | 2399 | puts_unfiltered (const char *string) |
c906108c SS |
2400 | { |
2401 | fputs_unfiltered (string, gdb_stdout); | |
2402 | } | |
2403 | ||
2404 | /* Return a pointer to N spaces and a null. The pointer is good | |
2405 | until the next call to here. */ | |
2406 | char * | |
fba45db2 | 2407 | n_spaces (int n) |
c906108c | 2408 | { |
392a587b JM |
2409 | char *t; |
2410 | static char *spaces = 0; | |
2411 | static int max_spaces = -1; | |
c906108c SS |
2412 | |
2413 | if (n > max_spaces) | |
2414 | { | |
2415 | if (spaces) | |
b8c9b27d | 2416 | xfree (spaces); |
c5aa993b JM |
2417 | spaces = (char *) xmalloc (n + 1); |
2418 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2419 | *--t = ' '; |
2420 | spaces[n] = '\0'; | |
2421 | max_spaces = n; | |
2422 | } | |
2423 | ||
2424 | return spaces + max_spaces - n; | |
2425 | } | |
2426 | ||
2427 | /* Print N spaces. */ | |
2428 | void | |
fba45db2 | 2429 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2430 | { |
2431 | fputs_filtered (n_spaces (n), stream); | |
2432 | } | |
2433 | \f | |
4a351cef | 2434 | /* C++/ObjC demangler stuff. */ |
c906108c | 2435 | |
389e51db AC |
2436 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2437 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2438 | If the name is not mangled, or the language for the name is unknown, or | |
2439 | demangling is off, the name is printed in its "raw" form. */ | |
c906108c SS |
2440 | |
2441 | void | |
8731e58e AC |
2442 | fprintf_symbol_filtered (struct ui_file *stream, char *name, |
2443 | enum language lang, int arg_mode) | |
c906108c SS |
2444 | { |
2445 | char *demangled; | |
2446 | ||
2447 | if (name != NULL) | |
2448 | { | |
2449 | /* If user wants to see raw output, no problem. */ | |
2450 | if (!demangle) | |
2451 | { | |
2452 | fputs_filtered (name, stream); | |
2453 | } | |
2454 | else | |
2455 | { | |
9a3d7dfd | 2456 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2457 | fputs_filtered (demangled ? demangled : name, stream); |
2458 | if (demangled != NULL) | |
2459 | { | |
b8c9b27d | 2460 | xfree (demangled); |
c906108c SS |
2461 | } |
2462 | } | |
2463 | } | |
2464 | } | |
2465 | ||
2466 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2467 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2468 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2469 | |
c906108c SS |
2470 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2471 | This "feature" is useful when searching for matching C++ function names | |
2472 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
2473 | function). */ | |
2474 | ||
2475 | int | |
fba45db2 | 2476 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2477 | { |
2478 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2479 | { | |
2480 | while (isspace (*string1)) | |
2481 | { | |
2482 | string1++; | |
2483 | } | |
2484 | while (isspace (*string2)) | |
2485 | { | |
2486 | string2++; | |
2487 | } | |
2488 | if (*string1 != *string2) | |
2489 | { | |
2490 | break; | |
2491 | } | |
2492 | if (*string1 != '\0') | |
2493 | { | |
2494 | string1++; | |
2495 | string2++; | |
2496 | } | |
2497 | } | |
2498 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2499 | } | |
2de7ced7 | 2500 | |
0fe19209 DC |
2501 | /* This is like strcmp except that it ignores whitespace and treats |
2502 | '(' as the first non-NULL character in terms of ordering. Like | |
2503 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2504 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2505 | according to that ordering. | |
2506 | ||
2507 | If a list is sorted according to this function and if you want to | |
2508 | find names in the list that match some fixed NAME according to | |
2509 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2510 | where this function would put NAME. | |
2511 | ||
2512 | Here are some examples of why using strcmp to sort is a bad idea: | |
2513 | ||
2514 | Whitespace example: | |
2515 | ||
2516 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2517 | we try to do a search for "foo<char*>", strcmp will locate this | |
2518 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2519 | will start looking at strings beginning with "goo", and will never | |
2520 | see the correct match of "foo<char *>". | |
2521 | ||
2522 | Parenthesis example: | |
2523 | ||
2524 | In practice, this is less like to be an issue, but I'll give it a | |
2525 | shot. Let's assume that '$' is a legitimate character to occur in | |
2526 | symbols. (Which may well even be the case on some systems.) Then | |
2527 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2528 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2529 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2530 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2531 | "foo") is false, so it won't proceed to the actual match of | |
2532 | "foo(int)" with "foo". */ | |
2533 | ||
2534 | int | |
2535 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2536 | { | |
2537 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2538 | { | |
2539 | while (isspace (*string1)) | |
2540 | { | |
2541 | string1++; | |
2542 | } | |
2543 | while (isspace (*string2)) | |
2544 | { | |
2545 | string2++; | |
2546 | } | |
2547 | if (*string1 != *string2) | |
2548 | { | |
2549 | break; | |
2550 | } | |
2551 | if (*string1 != '\0') | |
2552 | { | |
2553 | string1++; | |
2554 | string2++; | |
2555 | } | |
2556 | } | |
2557 | ||
2558 | switch (*string1) | |
2559 | { | |
2560 | /* Characters are non-equal unless they're both '\0'; we want to | |
2561 | make sure we get the comparison right according to our | |
2562 | comparison in the cases where one of them is '\0' or '('. */ | |
2563 | case '\0': | |
2564 | if (*string2 == '\0') | |
2565 | return 0; | |
2566 | else | |
2567 | return -1; | |
2568 | case '(': | |
2569 | if (*string2 == '\0') | |
2570 | return 1; | |
2571 | else | |
2572 | return -1; | |
2573 | default: | |
2574 | if (*string2 == '(') | |
2575 | return 1; | |
2576 | else | |
2577 | return *string1 - *string2; | |
2578 | } | |
2579 | } | |
2580 | ||
2de7ced7 DJ |
2581 | /* A simple comparison function with opposite semantics to strcmp. */ |
2582 | ||
2583 | int | |
2584 | streq (const char *lhs, const char *rhs) | |
2585 | { | |
2586 | return !strcmp (lhs, rhs); | |
2587 | } | |
c906108c | 2588 | \f |
c5aa993b | 2589 | |
c906108c | 2590 | /* |
c5aa993b JM |
2591 | ** subset_compare() |
2592 | ** Answer whether string_to_compare is a full or partial match to | |
2593 | ** template_string. The partial match must be in sequence starting | |
2594 | ** at index 0. | |
2595 | */ | |
c906108c | 2596 | int |
fba45db2 | 2597 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
2598 | { |
2599 | int match; | |
8731e58e AC |
2600 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
2601 | && strlen (string_to_compare) <= strlen (template_string)) | |
2602 | match = | |
2603 | (strncmp | |
2604 | (template_string, string_to_compare, strlen (string_to_compare)) == 0); | |
7a292a7a SS |
2605 | else |
2606 | match = 0; | |
2607 | return match; | |
2608 | } | |
c906108c | 2609 | |
7a292a7a | 2610 | static void |
fba45db2 | 2611 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
2612 | { |
2613 | pagination_enabled = 1; | |
2614 | } | |
2615 | ||
7a292a7a | 2616 | static void |
fba45db2 | 2617 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
2618 | { |
2619 | pagination_enabled = 0; | |
2620 | } | |
75feb17d DJ |
2621 | |
2622 | static void | |
2623 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
2624 | struct cmd_list_element *c, const char *value) | |
2625 | { | |
2626 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), value); | |
2627 | } | |
c906108c | 2628 | \f |
c5aa993b | 2629 | |
c906108c | 2630 | void |
fba45db2 | 2631 | initialize_utils (void) |
c906108c SS |
2632 | { |
2633 | struct cmd_list_element *c; | |
2634 | ||
35096d9d AC |
2635 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
2636 | Set number of characters gdb thinks are in a line."), _("\ | |
2637 | Show number of characters gdb thinks are in a line."), NULL, | |
2638 | set_width_command, | |
920d2a44 | 2639 | show_chars_per_line, |
35096d9d AC |
2640 | &setlist, &showlist); |
2641 | ||
2642 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
2643 | Set number of lines gdb thinks are in a page."), _("\ | |
2644 | Show number of lines gdb thinks are in a page."), NULL, | |
2645 | set_height_command, | |
920d2a44 | 2646 | show_lines_per_page, |
35096d9d | 2647 | &setlist, &showlist); |
c5aa993b | 2648 | |
c906108c SS |
2649 | init_page_info (); |
2650 | ||
5bf193a2 AC |
2651 | add_setshow_boolean_cmd ("demangle", class_support, &demangle, _("\ |
2652 | Set demangling of encoded C++/ObjC names when displaying symbols."), _("\ | |
2653 | Show demangling of encoded C++/ObjC names when displaying symbols."), NULL, | |
2654 | NULL, | |
920d2a44 | 2655 | show_demangle, |
5bf193a2 AC |
2656 | &setprintlist, &showprintlist); |
2657 | ||
2658 | add_setshow_boolean_cmd ("pagination", class_support, | |
2659 | &pagination_enabled, _("\ | |
2660 | Set state of pagination."), _("\ | |
2661 | Show state of pagination."), NULL, | |
2662 | NULL, | |
920d2a44 | 2663 | show_pagination_enabled, |
5bf193a2 | 2664 | &setlist, &showlist); |
4261bedc | 2665 | |
c906108c SS |
2666 | if (xdb_commands) |
2667 | { | |
c5aa993b | 2668 | add_com ("am", class_support, pagination_on_command, |
1bedd215 | 2669 | _("Enable pagination")); |
c5aa993b | 2670 | add_com ("sm", class_support, pagination_off_command, |
1bedd215 | 2671 | _("Disable pagination")); |
c906108c SS |
2672 | } |
2673 | ||
5bf193a2 AC |
2674 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, |
2675 | &sevenbit_strings, _("\ | |
2676 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
2677 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
2678 | NULL, | |
920d2a44 | 2679 | show_sevenbit_strings, |
5bf193a2 AC |
2680 | &setprintlist, &showprintlist); |
2681 | ||
2682 | add_setshow_boolean_cmd ("asm-demangle", class_support, &asm_demangle, _("\ | |
2683 | Set demangling of C++/ObjC names in disassembly listings."), _("\ | |
2684 | Show demangling of C++/ObjC names in disassembly listings."), NULL, | |
2685 | NULL, | |
920d2a44 | 2686 | show_asm_demangle, |
5bf193a2 | 2687 | &setprintlist, &showprintlist); |
75feb17d DJ |
2688 | |
2689 | add_setshow_boolean_cmd ("timestamp", class_maintenance, | |
2690 | &debug_timestamp, _("\ | |
2691 | Set timestamping of debugging messages."), _("\ | |
2692 | Show timestamping of debugging messages."), _("\ | |
2693 | When set, debugging messages will be marked with seconds and microseconds."), | |
2694 | NULL, | |
2695 | show_debug_timestamp, | |
2696 | &setdebuglist, &showdebuglist); | |
c906108c SS |
2697 | } |
2698 | ||
2699 | /* Machine specific function to handle SIGWINCH signal. */ | |
2700 | ||
2701 | #ifdef SIGWINCH_HANDLER_BODY | |
c5aa993b | 2702 | SIGWINCH_HANDLER_BODY |
c906108c | 2703 | #endif |
5683e87a | 2704 | /* print routines to handle variable size regs, etc. */ |
c906108c SS |
2705 | /* temporary storage using circular buffer */ |
2706 | #define NUMCELLS 16 | |
0759e0bf | 2707 | #define CELLSIZE 50 |
c5aa993b | 2708 | static char * |
fba45db2 | 2709 | get_cell (void) |
c906108c SS |
2710 | { |
2711 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b JM |
2712 | static int cell = 0; |
2713 | if (++cell >= NUMCELLS) | |
2714 | cell = 0; | |
c906108c SS |
2715 | return buf[cell]; |
2716 | } | |
2717 | ||
d4f3574e SS |
2718 | int |
2719 | strlen_paddr (void) | |
2720 | { | |
17a912b6 | 2721 | return (gdbarch_addr_bit (current_gdbarch) / 8 * 2); |
d4f3574e SS |
2722 | } |
2723 | ||
c5aa993b | 2724 | char * |
104c1213 | 2725 | paddr (CORE_ADDR addr) |
c906108c | 2726 | { |
17a912b6 | 2727 | return phex (addr, gdbarch_addr_bit (current_gdbarch) / 8); |
c906108c SS |
2728 | } |
2729 | ||
c5aa993b | 2730 | char * |
104c1213 | 2731 | paddr_nz (CORE_ADDR addr) |
c906108c | 2732 | { |
17a912b6 | 2733 | return phex_nz (addr, gdbarch_addr_bit (current_gdbarch) / 8); |
c906108c SS |
2734 | } |
2735 | ||
66bf4b3a AC |
2736 | const char * |
2737 | paddress (CORE_ADDR addr) | |
2738 | { | |
2739 | /* Truncate address to the size of a target address, avoiding shifts | |
2740 | larger or equal than the width of a CORE_ADDR. The local | |
2741 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
2742 | when it won't occur. */ | |
2743 | /* NOTE: This assumes that the significant address information is | |
2744 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2745 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2746 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2747 | ||
17a912b6 | 2748 | int addr_bit = gdbarch_addr_bit (current_gdbarch); |
66bf4b3a AC |
2749 | |
2750 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2751 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2752 | return hex_string (addr); | |
2753 | } | |
2754 | ||
8cf46f62 MK |
2755 | static char * |
2756 | decimal2str (char *sign, ULONGEST addr, int width) | |
104c1213 | 2757 | { |
8cf46f62 | 2758 | /* Steal code from valprint.c:print_decimal(). Should this worry |
104c1213 JM |
2759 | about the real size of addr as the above does? */ |
2760 | unsigned long temp[3]; | |
8cf46f62 MK |
2761 | char *str = get_cell (); |
2762 | ||
104c1213 JM |
2763 | int i = 0; |
2764 | do | |
2765 | { | |
2766 | temp[i] = addr % (1000 * 1000 * 1000); | |
2767 | addr /= (1000 * 1000 * 1000); | |
2768 | i++; | |
bb599908 | 2769 | width -= 9; |
104c1213 JM |
2770 | } |
2771 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 2772 | |
bb599908 PH |
2773 | width += 9; |
2774 | if (width < 0) | |
2775 | width = 0; | |
8cf46f62 | 2776 | |
104c1213 JM |
2777 | switch (i) |
2778 | { | |
2779 | case 1: | |
8cf46f62 | 2780 | xsnprintf (str, CELLSIZE, "%s%0*lu", sign, width, temp[0]); |
104c1213 JM |
2781 | break; |
2782 | case 2: | |
8cf46f62 MK |
2783 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu", sign, width, |
2784 | temp[1], temp[0]); | |
104c1213 JM |
2785 | break; |
2786 | case 3: | |
8cf46f62 MK |
2787 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu%09lu", sign, width, |
2788 | temp[2], temp[1], temp[0]); | |
bb599908 PH |
2789 | break; |
2790 | default: | |
2791 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2792 | _("failed internal consistency check")); |
bb599908 | 2793 | } |
8cf46f62 MK |
2794 | |
2795 | return str; | |
bb599908 PH |
2796 | } |
2797 | ||
8cf46f62 MK |
2798 | static char * |
2799 | octal2str (ULONGEST addr, int width) | |
bb599908 PH |
2800 | { |
2801 | unsigned long temp[3]; | |
8cf46f62 MK |
2802 | char *str = get_cell (); |
2803 | ||
bb599908 PH |
2804 | int i = 0; |
2805 | do | |
2806 | { | |
2807 | temp[i] = addr % (0100000 * 0100000); | |
2808 | addr /= (0100000 * 0100000); | |
2809 | i++; | |
2810 | width -= 10; | |
2811 | } | |
2812 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 2813 | |
bb599908 PH |
2814 | width += 10; |
2815 | if (width < 0) | |
2816 | width = 0; | |
8cf46f62 | 2817 | |
bb599908 PH |
2818 | switch (i) |
2819 | { | |
2820 | case 1: | |
2821 | if (temp[0] == 0) | |
8cf46f62 | 2822 | xsnprintf (str, CELLSIZE, "%*o", width, 0); |
bb599908 | 2823 | else |
8cf46f62 | 2824 | xsnprintf (str, CELLSIZE, "0%0*lo", width, temp[0]); |
bb599908 PH |
2825 | break; |
2826 | case 2: | |
8cf46f62 | 2827 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo", width, temp[1], temp[0]); |
bb599908 PH |
2828 | break; |
2829 | case 3: | |
8cf46f62 MK |
2830 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo%010lo", width, |
2831 | temp[2], temp[1], temp[0]); | |
104c1213 JM |
2832 | break; |
2833 | default: | |
8731e58e | 2834 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 2835 | _("failed internal consistency check")); |
104c1213 | 2836 | } |
8cf46f62 MK |
2837 | |
2838 | return str; | |
104c1213 JM |
2839 | } |
2840 | ||
2841 | char * | |
623d3eb1 | 2842 | pulongest (ULONGEST u) |
104c1213 | 2843 | { |
623d3eb1 | 2844 | return decimal2str ("", u, 0); |
104c1213 JM |
2845 | } |
2846 | ||
2847 | char * | |
623d3eb1 | 2848 | plongest (LONGEST l) |
104c1213 | 2849 | { |
623d3eb1 DE |
2850 | if (l < 0) |
2851 | return decimal2str ("-", -l, 0); | |
104c1213 | 2852 | else |
623d3eb1 | 2853 | return decimal2str ("", l, 0); |
104c1213 JM |
2854 | } |
2855 | ||
8cf46f62 | 2856 | /* Eliminate warning from compiler on 32-bit systems. */ |
5683e87a AC |
2857 | static int thirty_two = 32; |
2858 | ||
104c1213 | 2859 | char * |
5683e87a | 2860 | phex (ULONGEST l, int sizeof_l) |
104c1213 | 2861 | { |
45a1e866 | 2862 | char *str; |
8cf46f62 | 2863 | |
5683e87a | 2864 | switch (sizeof_l) |
104c1213 JM |
2865 | { |
2866 | case 8: | |
45a1e866 | 2867 | str = get_cell (); |
8cf46f62 MK |
2868 | xsnprintf (str, CELLSIZE, "%08lx%08lx", |
2869 | (unsigned long) (l >> thirty_two), | |
2870 | (unsigned long) (l & 0xffffffff)); | |
104c1213 JM |
2871 | break; |
2872 | case 4: | |
45a1e866 | 2873 | str = get_cell (); |
8cf46f62 | 2874 | xsnprintf (str, CELLSIZE, "%08lx", (unsigned long) l); |
104c1213 JM |
2875 | break; |
2876 | case 2: | |
45a1e866 | 2877 | str = get_cell (); |
8cf46f62 | 2878 | xsnprintf (str, CELLSIZE, "%04x", (unsigned short) (l & 0xffff)); |
104c1213 JM |
2879 | break; |
2880 | default: | |
45a1e866 | 2881 | str = phex (l, sizeof (l)); |
5683e87a | 2882 | break; |
104c1213 | 2883 | } |
8cf46f62 | 2884 | |
5683e87a | 2885 | return str; |
104c1213 JM |
2886 | } |
2887 | ||
c5aa993b | 2888 | char * |
5683e87a | 2889 | phex_nz (ULONGEST l, int sizeof_l) |
c906108c | 2890 | { |
faf833ca | 2891 | char *str; |
8cf46f62 | 2892 | |
5683e87a | 2893 | switch (sizeof_l) |
c906108c | 2894 | { |
c5aa993b JM |
2895 | case 8: |
2896 | { | |
5683e87a | 2897 | unsigned long high = (unsigned long) (l >> thirty_two); |
faf833ca | 2898 | str = get_cell (); |
c5aa993b | 2899 | if (high == 0) |
8cf46f62 MK |
2900 | xsnprintf (str, CELLSIZE, "%lx", |
2901 | (unsigned long) (l & 0xffffffff)); | |
c5aa993b | 2902 | else |
8cf46f62 MK |
2903 | xsnprintf (str, CELLSIZE, "%lx%08lx", high, |
2904 | (unsigned long) (l & 0xffffffff)); | |
c906108c | 2905 | break; |
c5aa993b JM |
2906 | } |
2907 | case 4: | |
faf833ca | 2908 | str = get_cell (); |
8cf46f62 | 2909 | xsnprintf (str, CELLSIZE, "%lx", (unsigned long) l); |
c5aa993b JM |
2910 | break; |
2911 | case 2: | |
faf833ca | 2912 | str = get_cell (); |
8cf46f62 | 2913 | xsnprintf (str, CELLSIZE, "%x", (unsigned short) (l & 0xffff)); |
c5aa993b JM |
2914 | break; |
2915 | default: | |
faf833ca | 2916 | str = phex_nz (l, sizeof (l)); |
5683e87a | 2917 | break; |
c906108c | 2918 | } |
8cf46f62 | 2919 | |
5683e87a | 2920 | return str; |
c906108c | 2921 | } |
ac2e2ef7 | 2922 | |
0759e0bf AC |
2923 | /* Converts a LONGEST to a C-format hexadecimal literal and stores it |
2924 | in a static string. Returns a pointer to this string. */ | |
2925 | char * | |
2926 | hex_string (LONGEST num) | |
2927 | { | |
2928 | char *result = get_cell (); | |
8cf46f62 | 2929 | xsnprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num))); |
0759e0bf AC |
2930 | return result; |
2931 | } | |
2932 | ||
2933 | /* Converts a LONGEST number to a C-format hexadecimal literal and | |
2934 | stores it in a static string. Returns a pointer to this string | |
2935 | that is valid until the next call. The number is padded on the | |
2936 | left with 0s to at least WIDTH characters. */ | |
2937 | char * | |
2938 | hex_string_custom (LONGEST num, int width) | |
2939 | { | |
2940 | char *result = get_cell (); | |
2941 | char *result_end = result + CELLSIZE - 1; | |
2942 | const char *hex = phex_nz (num, sizeof (num)); | |
2943 | int hex_len = strlen (hex); | |
2944 | ||
2945 | if (hex_len > width) | |
2946 | width = hex_len; | |
2947 | if (width + 2 >= CELLSIZE) | |
2948 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2949 | _("hex_string_custom: insufficient space to store result")); |
0759e0bf AC |
2950 | |
2951 | strcpy (result_end - width - 2, "0x"); | |
2952 | memset (result_end - width, '0', width); | |
2953 | strcpy (result_end - hex_len, hex); | |
2954 | return result_end - width - 2; | |
2955 | } | |
ac2e2ef7 | 2956 | |
bb599908 PH |
2957 | /* Convert VAL to a numeral in the given radix. For |
2958 | * radix 10, IS_SIGNED may be true, indicating a signed quantity; | |
2959 | * otherwise VAL is interpreted as unsigned. If WIDTH is supplied, | |
2960 | * it is the minimum width (0-padded if needed). USE_C_FORMAT means | |
2961 | * to use C format in all cases. If it is false, then 'x' | |
2962 | * and 'o' formats do not include a prefix (0x or leading 0). */ | |
2963 | ||
2964 | char * | |
2965 | int_string (LONGEST val, int radix, int is_signed, int width, | |
2966 | int use_c_format) | |
2967 | { | |
2968 | switch (radix) | |
2969 | { | |
2970 | case 16: | |
2971 | { | |
2972 | char *result; | |
2973 | if (width == 0) | |
2974 | result = hex_string (val); | |
2975 | else | |
2976 | result = hex_string_custom (val, width); | |
2977 | if (! use_c_format) | |
2978 | result += 2; | |
2979 | return result; | |
2980 | } | |
2981 | case 10: | |
2982 | { | |
bb599908 | 2983 | if (is_signed && val < 0) |
8cf46f62 | 2984 | return decimal2str ("-", -val, width); |
bb599908 | 2985 | else |
8cf46f62 | 2986 | return decimal2str ("", val, width); |
bb599908 PH |
2987 | } |
2988 | case 8: | |
2989 | { | |
8cf46f62 | 2990 | char *result = octal2str (val, width); |
bb599908 PH |
2991 | if (use_c_format || val == 0) |
2992 | return result; | |
2993 | else | |
2994 | return result + 1; | |
2995 | } | |
2996 | default: | |
2997 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2998 | _("failed internal consistency check")); |
bb599908 PH |
2999 | } |
3000 | } | |
3001 | ||
03dd37c3 AC |
3002 | /* Convert a CORE_ADDR into a string. */ |
3003 | const char * | |
3004 | core_addr_to_string (const CORE_ADDR addr) | |
49b563f9 KS |
3005 | { |
3006 | char *str = get_cell (); | |
3007 | strcpy (str, "0x"); | |
3008 | strcat (str, phex (addr, sizeof (addr))); | |
3009 | return str; | |
3010 | } | |
3011 | ||
3012 | const char * | |
3013 | core_addr_to_string_nz (const CORE_ADDR addr) | |
03dd37c3 AC |
3014 | { |
3015 | char *str = get_cell (); | |
3016 | strcpy (str, "0x"); | |
3017 | strcat (str, phex_nz (addr, sizeof (addr))); | |
3018 | return str; | |
3019 | } | |
3020 | ||
3021 | /* Convert a string back into a CORE_ADDR. */ | |
3022 | CORE_ADDR | |
3023 | string_to_core_addr (const char *my_string) | |
3024 | { | |
9544c605 | 3025 | int addr_bit = gdbarch_addr_bit (current_gdbarch); |
03dd37c3 | 3026 | CORE_ADDR addr = 0; |
9544c605 | 3027 | |
03dd37c3 AC |
3028 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
3029 | { | |
ced572fe | 3030 | /* Assume that it is in hex. */ |
03dd37c3 AC |
3031 | int i; |
3032 | for (i = 2; my_string[i] != '\0'; i++) | |
3033 | { | |
3034 | if (isdigit (my_string[i])) | |
3035 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 3036 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
3037 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
3038 | else | |
63f06803 | 3039 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 | 3040 | } |
9544c605 MR |
3041 | |
3042 | /* Not very modular, but if the executable format expects | |
3043 | addresses to be sign-extended, then do so if the address was | |
3044 | specified with only 32 significant bits. Really this should | |
3045 | be determined by the target architecture, not by the object | |
3046 | file. */ | |
3047 | if (i - 2 == addr_bit / 4 | |
3048 | && exec_bfd | |
3049 | && bfd_get_sign_extend_vma (exec_bfd)) | |
3050 | addr = (addr ^ ((CORE_ADDR) 1 << (addr_bit - 1))) | |
3051 | - ((CORE_ADDR) 1 << (addr_bit - 1)); | |
03dd37c3 AC |
3052 | } |
3053 | else | |
3054 | { | |
3055 | /* Assume that it is in decimal. */ | |
3056 | int i; | |
3057 | for (i = 0; my_string[i] != '\0'; i++) | |
3058 | { | |
3059 | if (isdigit (my_string[i])) | |
3060 | addr = (my_string[i] - '0') + (addr * 10); | |
3061 | else | |
63f06803 | 3062 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
3063 | } |
3064 | } | |
9544c605 | 3065 | |
03dd37c3 AC |
3066 | return addr; |
3067 | } | |
58d370e0 | 3068 | |
17ea7499 CES |
3069 | const char * |
3070 | host_address_to_string (const void *addr) | |
3071 | { | |
3072 | char *str = get_cell (); | |
ea8992ce JB |
3073 | |
3074 | /* We could use the %p conversion specifier to sprintf if we had any | |
3075 | way of knowing whether this host supports it. But the following | |
3076 | should work on the Alpha and on 32 bit machines. */ | |
17ea7499 CES |
3077 | sprintf (str, "0x%lx", (unsigned long) addr); |
3078 | return str; | |
3079 | } | |
3080 | ||
58d370e0 TT |
3081 | char * |
3082 | gdb_realpath (const char *filename) | |
3083 | { | |
70d35819 AC |
3084 | /* Method 1: The system has a compile time upper bound on a filename |
3085 | path. Use that and realpath() to canonicalize the name. This is | |
3086 | the most common case. Note that, if there isn't a compile time | |
3087 | upper bound, you want to avoid realpath() at all costs. */ | |
a4db0f07 | 3088 | #if defined(HAVE_REALPATH) |
70d35819 | 3089 | { |
a4db0f07 | 3090 | # if defined (PATH_MAX) |
70d35819 | 3091 | char buf[PATH_MAX]; |
a4db0f07 RH |
3092 | # define USE_REALPATH |
3093 | # elif defined (MAXPATHLEN) | |
70d35819 | 3094 | char buf[MAXPATHLEN]; |
a4db0f07 RH |
3095 | # define USE_REALPATH |
3096 | # endif | |
70d35819 | 3097 | # if defined (USE_REALPATH) |
82c0260e | 3098 | const char *rp = realpath (filename, buf); |
70d35819 AC |
3099 | if (rp == NULL) |
3100 | rp = filename; | |
3101 | return xstrdup (rp); | |
70d35819 | 3102 | # endif |
6f88d630 | 3103 | } |
a4db0f07 RH |
3104 | #endif /* HAVE_REALPATH */ |
3105 | ||
70d35819 AC |
3106 | /* Method 2: The host system (i.e., GNU) has the function |
3107 | canonicalize_file_name() which malloc's a chunk of memory and | |
3108 | returns that, use that. */ | |
3109 | #if defined(HAVE_CANONICALIZE_FILE_NAME) | |
3110 | { | |
3111 | char *rp = canonicalize_file_name (filename); | |
3112 | if (rp == NULL) | |
3113 | return xstrdup (filename); | |
3114 | else | |
3115 | return rp; | |
3116 | } | |
58d370e0 | 3117 | #endif |
70d35819 | 3118 | |
6411e720 AC |
3119 | /* FIXME: cagney/2002-11-13: |
3120 | ||
3121 | Method 2a: Use realpath() with a NULL buffer. Some systems, due | |
3122 | to the problems described in in method 3, have modified their | |
3123 | realpath() implementation so that it will allocate a buffer when | |
3124 | NULL is passed in. Before this can be used, though, some sort of | |
3125 | configure time test would need to be added. Otherwize the code | |
3126 | will likely core dump. */ | |
3127 | ||
70d35819 AC |
3128 | /* Method 3: Now we're getting desperate! The system doesn't have a |
3129 | compile time buffer size and no alternative function. Query the | |
3130 | OS, using pathconf(), for the buffer limit. Care is needed | |
3131 | though, some systems do not limit PATH_MAX (return -1 for | |
3132 | pathconf()) making it impossible to pass a correctly sized buffer | |
3133 | to realpath() (it could always overflow). On those systems, we | |
3134 | skip this. */ | |
3135 | #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA) | |
3136 | { | |
3137 | /* Find out the max path size. */ | |
3138 | long path_max = pathconf ("/", _PC_PATH_MAX); | |
3139 | if (path_max > 0) | |
3140 | { | |
3141 | /* PATH_MAX is bounded. */ | |
3142 | char *buf = alloca (path_max); | |
3143 | char *rp = realpath (filename, buf); | |
3144 | return xstrdup (rp ? rp : filename); | |
3145 | } | |
3146 | } | |
3147 | #endif | |
3148 | ||
3149 | /* This system is a lost cause, just dup the buffer. */ | |
3150 | return xstrdup (filename); | |
58d370e0 | 3151 | } |
303c8ebd JB |
3152 | |
3153 | /* Return a copy of FILENAME, with its directory prefix canonicalized | |
3154 | by gdb_realpath. */ | |
3155 | ||
3156 | char * | |
3157 | xfullpath (const char *filename) | |
3158 | { | |
3159 | const char *base_name = lbasename (filename); | |
3160 | char *dir_name; | |
3161 | char *real_path; | |
3162 | char *result; | |
3163 | ||
3164 | /* Extract the basename of filename, and return immediately | |
3165 | a copy of filename if it does not contain any directory prefix. */ | |
3166 | if (base_name == filename) | |
3167 | return xstrdup (filename); | |
3168 | ||
3169 | dir_name = alloca ((size_t) (base_name - filename + 2)); | |
3170 | /* Allocate enough space to store the dir_name + plus one extra | |
3171 | character sometimes needed under Windows (see below), and | |
3172 | then the closing \000 character */ | |
3173 | strncpy (dir_name, filename, base_name - filename); | |
3174 | dir_name[base_name - filename] = '\000'; | |
3175 | ||
3176 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3177 | /* We need to be careful when filename is of the form 'd:foo', which | |
3178 | is equivalent of d:./foo, which is totally different from d:/foo. */ | |
8731e58e | 3179 | if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':') |
303c8ebd JB |
3180 | { |
3181 | dir_name[2] = '.'; | |
3182 | dir_name[3] = '\000'; | |
3183 | } | |
3184 | #endif | |
3185 | ||
3186 | /* Canonicalize the directory prefix, and build the resulting | |
3187 | filename. If the dirname realpath already contains an ending | |
3188 | directory separator, avoid doubling it. */ | |
3189 | real_path = gdb_realpath (dir_name); | |
3190 | if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1])) | |
1754f103 | 3191 | result = concat (real_path, base_name, (char *)NULL); |
303c8ebd | 3192 | else |
1754f103 | 3193 | result = concat (real_path, SLASH_STRING, base_name, (char *)NULL); |
303c8ebd JB |
3194 | |
3195 | xfree (real_path); | |
3196 | return result; | |
3197 | } | |
5b5d99cf JB |
3198 | |
3199 | ||
3200 | /* This is the 32-bit CRC function used by the GNU separate debug | |
3201 | facility. An executable may contain a section named | |
3202 | .gnu_debuglink, which holds the name of a separate executable file | |
3203 | containing its debug info, and a checksum of that file's contents, | |
3204 | computed using this function. */ | |
3205 | unsigned long | |
3206 | gnu_debuglink_crc32 (unsigned long crc, unsigned char *buf, size_t len) | |
3207 | { | |
8731e58e AC |
3208 | static const unsigned long crc32_table[256] = { |
3209 | 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, | |
3210 | 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, | |
3211 | 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, | |
3212 | 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, | |
3213 | 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, | |
3214 | 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, | |
3215 | 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, | |
3216 | 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, | |
3217 | 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, | |
3218 | 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, | |
3219 | 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, | |
3220 | 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, | |
3221 | 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, | |
3222 | 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, | |
3223 | 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, | |
3224 | 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, | |
3225 | 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, | |
3226 | 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, | |
3227 | 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, | |
3228 | 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, | |
3229 | 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, | |
3230 | 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, | |
3231 | 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, | |
3232 | 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, | |
3233 | 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, | |
3234 | 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, | |
3235 | 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, | |
3236 | 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, | |
3237 | 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, | |
3238 | 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, | |
3239 | 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, | |
3240 | 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, | |
3241 | 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, | |
3242 | 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, | |
3243 | 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, | |
3244 | 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, | |
3245 | 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, | |
3246 | 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, | |
3247 | 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, | |
3248 | 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, | |
3249 | 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, | |
3250 | 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, | |
3251 | 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, | |
3252 | 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, | |
3253 | 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, | |
3254 | 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, | |
3255 | 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, | |
3256 | 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, | |
3257 | 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, | |
3258 | 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, | |
3259 | 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, | |
3260 | 0x2d02ef8d | |
3261 | }; | |
5b5d99cf JB |
3262 | unsigned char *end; |
3263 | ||
3264 | crc = ~crc & 0xffffffff; | |
3265 | for (end = buf + len; buf < end; ++buf) | |
3266 | crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8); | |
3267 | return ~crc & 0xffffffff;; | |
3268 | } | |
5b03f266 AC |
3269 | |
3270 | ULONGEST | |
3271 | align_up (ULONGEST v, int n) | |
3272 | { | |
3273 | /* Check that N is really a power of two. */ | |
3274 | gdb_assert (n && (n & (n-1)) == 0); | |
3275 | return (v + n - 1) & -n; | |
3276 | } | |
3277 | ||
3278 | ULONGEST | |
3279 | align_down (ULONGEST v, int n) | |
3280 | { | |
3281 | /* Check that N is really a power of two. */ | |
3282 | gdb_assert (n && (n & (n-1)) == 0); | |
3283 | return (v & -n); | |
3284 | } | |
ae5a43e0 DJ |
3285 | |
3286 | /* Allocation function for the libiberty hash table which uses an | |
3287 | obstack. The obstack is passed as DATA. */ | |
3288 | ||
3289 | void * | |
3290 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
3291 | { | |
3292 | unsigned int total = size * count; | |
3293 | void *ptr = obstack_alloc ((struct obstack *) data, total); | |
3294 | memset (ptr, 0, total); | |
3295 | return ptr; | |
3296 | } | |
3297 | ||
3298 | /* Trivial deallocation function for the libiberty splay tree and hash | |
3299 | table - don't deallocate anything. Rely on later deletion of the | |
3300 | obstack. DATA will be the obstack, although it is not needed | |
3301 | here. */ | |
3302 | ||
3303 | void | |
3304 | dummy_obstack_deallocate (void *object, void *data) | |
3305 | { | |
3306 | return; | |
3307 | } | |
253c8abb DJ |
3308 | |
3309 | /* The bit offset of the highest byte in a ULONGEST, for overflow | |
3310 | checking. */ | |
3311 | ||
3312 | #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT) | |
3313 | ||
3314 | /* True (non-zero) iff DIGIT is a valid digit in radix BASE, | |
3315 | where 2 <= BASE <= 36. */ | |
3316 | ||
3317 | static int | |
3318 | is_digit_in_base (unsigned char digit, int base) | |
3319 | { | |
3320 | if (!isalnum (digit)) | |
3321 | return 0; | |
3322 | if (base <= 10) | |
3323 | return (isdigit (digit) && digit < base + '0'); | |
3324 | else | |
3325 | return (isdigit (digit) || tolower (digit) < base - 10 + 'a'); | |
3326 | } | |
3327 | ||
3328 | static int | |
3329 | digit_to_int (unsigned char c) | |
3330 | { | |
3331 | if (isdigit (c)) | |
3332 | return c - '0'; | |
3333 | else | |
3334 | return tolower (c) - 'a' + 10; | |
3335 | } | |
3336 | ||
3337 | /* As for strtoul, but for ULONGEST results. */ | |
3338 | ||
3339 | ULONGEST | |
3340 | strtoulst (const char *num, const char **trailer, int base) | |
3341 | { | |
3342 | unsigned int high_part; | |
3343 | ULONGEST result; | |
3344 | int minus = 0; | |
3345 | int i = 0; | |
3346 | ||
3347 | /* Skip leading whitespace. */ | |
3348 | while (isspace (num[i])) | |
3349 | i++; | |
3350 | ||
3351 | /* Handle prefixes. */ | |
3352 | if (num[i] == '+') | |
3353 | i++; | |
3354 | else if (num[i] == '-') | |
3355 | { | |
3356 | minus = 1; | |
3357 | i++; | |
3358 | } | |
3359 | ||
3360 | if (base == 0 || base == 16) | |
3361 | { | |
3362 | if (num[i] == '0' && (num[i + 1] == 'x' || num[i + 1] == 'X')) | |
3363 | { | |
3364 | i += 2; | |
3365 | if (base == 0) | |
3366 | base = 16; | |
3367 | } | |
3368 | } | |
3369 | ||
3370 | if (base == 0 && num[i] == '0') | |
3371 | base = 8; | |
3372 | ||
3373 | if (base == 0) | |
3374 | base = 10; | |
3375 | ||
3376 | if (base < 2 || base > 36) | |
3377 | { | |
3378 | errno = EINVAL; | |
3379 | return 0; | |
3380 | } | |
3381 | ||
3382 | result = high_part = 0; | |
3383 | for (; is_digit_in_base (num[i], base); i += 1) | |
3384 | { | |
3385 | result = result * base + digit_to_int (num[i]); | |
3386 | high_part = high_part * base + (unsigned int) (result >> HIGH_BYTE_POSN); | |
3387 | result &= ((ULONGEST) 1 << HIGH_BYTE_POSN) - 1; | |
3388 | if (high_part > 0xff) | |
3389 | { | |
3390 | errno = ERANGE; | |
3391 | result = ~ (ULONGEST) 0; | |
3392 | high_part = 0; | |
3393 | minus = 0; | |
3394 | break; | |
3395 | } | |
3396 | } | |
3397 | ||
3398 | if (trailer != NULL) | |
3399 | *trailer = &num[i]; | |
3400 | ||
3401 | result = result + ((ULONGEST) high_part << HIGH_BYTE_POSN); | |
3402 | if (minus) | |
3403 | return -result; | |
3404 | else | |
3405 | return result; | |
3406 | } | |
e1024ff1 DJ |
3407 | |
3408 | /* Simple, portable version of dirname that does not modify its | |
3409 | argument. */ | |
3410 | ||
3411 | char * | |
3412 | ldirname (const char *filename) | |
3413 | { | |
3414 | const char *base = lbasename (filename); | |
3415 | char *dirname; | |
3416 | ||
3417 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
3418 | --base; | |
3419 | ||
3420 | if (base == filename) | |
3421 | return NULL; | |
3422 | ||
3423 | dirname = xmalloc (base - filename + 2); | |
3424 | memcpy (dirname, filename, base - filename); | |
3425 | ||
3426 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
3427 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
3428 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
3429 | && !IS_DIR_SEPARATOR (filename[0])) | |
3430 | dirname[base++ - filename] = '.'; | |
3431 | ||
3432 | dirname[base - filename] = '\0'; | |
3433 | return dirname; | |
3434 | } | |
d1a41061 PP |
3435 | |
3436 | /* Call libiberty's buildargv, and return the result. | |
3437 | If buildargv fails due to out-of-memory, call nomem. | |
3438 | Therefore, the returned value is guaranteed to be non-NULL, | |
3439 | unless the parameter itself is NULL. */ | |
3440 | ||
3441 | char ** | |
3442 | gdb_buildargv (const char *s) | |
3443 | { | |
3444 | char **argv = buildargv (s); | |
3445 | if (s != NULL && argv == NULL) | |
3446 | nomem (0); | |
3447 | return argv; | |
3448 | } |