Commit | Line | Data |
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c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
1bac305b | 2 | |
61baf725 | 3 | Copyright (C) 1986-2017 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c | 19 | |
4e8f7a8b | 20 | #include "defs.h" |
4e8f7a8b | 21 | #include <ctype.h> |
0b6cb71e | 22 | #include "gdb_wait.h" |
4e8f7a8b | 23 | #include "event-top.h" |
95e54da7 | 24 | #include "gdbthread.h" |
202cbf1c | 25 | #include "fnmatch.h" |
cbb099e8 | 26 | #include "gdb_bfd.h" |
7991dee7 JK |
27 | #ifdef HAVE_SYS_RESOURCE_H |
28 | #include <sys/resource.h> | |
29 | #endif /* HAVE_SYS_RESOURCE_H */ | |
4e8f7a8b | 30 | |
6a83354a AC |
31 | #ifdef TUI |
32 | #include "tui/tui.h" /* For tui_get_command_dimension. */ | |
33 | #endif | |
34 | ||
9d271fd8 AC |
35 | #ifdef __GO32__ |
36 | #include <pc.h> | |
37 | #endif | |
38 | ||
042be3a9 | 39 | #include <signal.h> |
c906108c SS |
40 | #include "gdbcmd.h" |
41 | #include "serial.h" | |
42 | #include "bfd.h" | |
43 | #include "target.h" | |
50f182aa | 44 | #include "gdb-demangle.h" |
c906108c SS |
45 | #include "expression.h" |
46 | #include "language.h" | |
234b45d4 | 47 | #include "charset.h" |
c906108c | 48 | #include "annotate.h" |
303c8ebd | 49 | #include "filenames.h" |
7b90c3f9 | 50 | #include "symfile.h" |
ae5a43e0 | 51 | #include "gdb_obstack.h" |
9544c605 | 52 | #include "gdbcore.h" |
698ba934 | 53 | #include "top.h" |
7c953934 | 54 | #include "main.h" |
cb08cc53 | 55 | #include "solist.h" |
c906108c | 56 | |
8731e58e | 57 | #include "inferior.h" /* for signed_pointer_to_address */ |
ac2e2ef7 | 58 | |
3b78cdbb | 59 | #include "gdb_curses.h" |
020cc13c | 60 | |
dbda9972 | 61 | #include "readline/readline.h" |
c906108c | 62 | |
dcb07cfa | 63 | #include <chrono> |
75feb17d | 64 | |
8626589c | 65 | #include "gdb_usleep.h" |
390a8aca | 66 | #include "interps.h" |
db1ff28b | 67 | #include "gdb_regex.h" |
15652511 | 68 | #include "job-control.h" |
14278e1f | 69 | #include "common/selftest.h" |
8626589c | 70 | |
a3828db0 | 71 | #if !HAVE_DECL_MALLOC |
5ac79d78 | 72 | extern PTR malloc (); /* ARI: PTR */ |
3c37485b | 73 | #endif |
a3828db0 | 74 | #if !HAVE_DECL_REALLOC |
5ac79d78 | 75 | extern PTR realloc (); /* ARI: PTR */ |
0e52036f | 76 | #endif |
a3828db0 | 77 | #if !HAVE_DECL_FREE |
81b8eb80 AC |
78 | extern void free (); |
79 | #endif | |
81b8eb80 | 80 | |
9a4105ab | 81 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
82 | |
83 | /* Prototypes for local functions */ | |
84 | ||
d9fcf2fb | 85 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
a0b31db1 | 86 | va_list, int) ATTRIBUTE_PRINTF (2, 0); |
c906108c | 87 | |
d9fcf2fb | 88 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 89 | |
a14ed312 | 90 | static void prompt_for_continue (void); |
c906108c | 91 | |
eb0d3137 | 92 | static void set_screen_size (void); |
a14ed312 | 93 | static void set_width (void); |
c906108c | 94 | |
260c0b2a DE |
95 | /* Time spent in prompt_for_continue in the currently executing command |
96 | waiting for user to respond. | |
97 | Initialized in make_command_stats_cleanup. | |
98 | Modified in prompt_for_continue and defaulted_query. | |
99 | Used in report_command_stats. */ | |
100 | ||
dcb07cfa | 101 | static std::chrono::steady_clock::duration prompt_for_continue_wait_time; |
260c0b2a | 102 | |
75feb17d DJ |
103 | /* A flag indicating whether to timestamp debugging messages. */ |
104 | ||
105 | static int debug_timestamp = 0; | |
106 | ||
c906108c SS |
107 | /* Nonzero means that strings with character values >0x7F should be printed |
108 | as octal escapes. Zero means just print the value (e.g. it's an | |
109 | international character, and the terminal or window can cope.) */ | |
110 | ||
111 | int sevenbit_strings = 0; | |
920d2a44 AC |
112 | static void |
113 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
114 | struct cmd_list_element *c, const char *value) | |
115 | { | |
3e43a32a MS |
116 | fprintf_filtered (file, _("Printing of 8-bit characters " |
117 | "in strings as \\nnn is %s.\n"), | |
920d2a44 AC |
118 | value); |
119 | } | |
c906108c | 120 | |
c906108c SS |
121 | /* String to be printed before warning messages, if any. */ |
122 | ||
69bbf465 | 123 | const char *warning_pre_print = "\nwarning: "; |
c906108c SS |
124 | |
125 | int pagination_enabled = 1; | |
920d2a44 AC |
126 | static void |
127 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
128 | struct cmd_list_element *c, const char *value) | |
129 | { | |
130 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
131 | } | |
132 | ||
c906108c | 133 | \f |
c27f5738 | 134 | /* Cleanup utilities. |
c5aa993b | 135 | |
c27f5738 DE |
136 | These are not defined in cleanups.c (nor declared in cleanups.h) |
137 | because while they use the "cleanup API" they are not part of the | |
138 | "cleanup API". */ | |
7a292a7a | 139 | |
8d4d924b JK |
140 | /* Helper function for make_cleanup_ui_out_redirect_pop. */ |
141 | ||
142 | static void | |
143 | do_ui_out_redirect_pop (void *arg) | |
144 | { | |
19ba03f4 | 145 | struct ui_out *uiout = (struct ui_out *) arg; |
8d4d924b | 146 | |
7becfd03 | 147 | uiout->redirect (NULL); |
8d4d924b JK |
148 | } |
149 | ||
150 | /* Return a new cleanup that pops the last redirection by ui_out_redirect | |
151 | with NULL parameter. */ | |
152 | ||
153 | struct cleanup * | |
154 | make_cleanup_ui_out_redirect_pop (struct ui_out *uiout) | |
155 | { | |
e0088cfd | 156 | return make_cleanup (do_ui_out_redirect_pop, uiout); |
8d4d924b JK |
157 | } |
158 | ||
7b90c3f9 JB |
159 | static void |
160 | do_free_section_addr_info (void *arg) | |
161 | { | |
19ba03f4 | 162 | free_section_addr_info ((struct section_addr_info *) arg); |
7b90c3f9 JB |
163 | } |
164 | ||
165 | struct cleanup * | |
166 | make_cleanup_free_section_addr_info (struct section_addr_info *addrs) | |
167 | { | |
e0088cfd | 168 | return make_cleanup (do_free_section_addr_info, addrs); |
7b90c3f9 JB |
169 | } |
170 | ||
0b080f59 VP |
171 | struct restore_integer_closure |
172 | { | |
173 | int *variable; | |
174 | int value; | |
175 | }; | |
176 | ||
177 | static void | |
178 | restore_integer (void *p) | |
179 | { | |
19ba03f4 SM |
180 | struct restore_integer_closure *closure |
181 | = (struct restore_integer_closure *) p; | |
e0627e85 | 182 | |
0b080f59 VP |
183 | *(closure->variable) = closure->value; |
184 | } | |
7b90c3f9 | 185 | |
3e43a32a MS |
186 | /* Remember the current value of *VARIABLE and make it restored when |
187 | the cleanup is run. */ | |
5da1313b | 188 | |
c906108c | 189 | struct cleanup * |
0b080f59 VP |
190 | make_cleanup_restore_integer (int *variable) |
191 | { | |
8d749320 | 192 | struct restore_integer_closure *c = XNEW (struct restore_integer_closure); |
e0627e85 | 193 | |
0b080f59 VP |
194 | c->variable = variable; |
195 | c->value = *variable; | |
196 | ||
e0088cfd | 197 | return make_cleanup_dtor (restore_integer, (void *) c, xfree); |
0b080f59 VP |
198 | } |
199 | ||
3e43a32a MS |
200 | /* Remember the current value of *VARIABLE and make it restored when |
201 | the cleanup is run. */ | |
5da1313b JK |
202 | |
203 | struct cleanup * | |
204 | make_cleanup_restore_uinteger (unsigned int *variable) | |
205 | { | |
206 | return make_cleanup_restore_integer ((int *) variable); | |
207 | } | |
208 | ||
c0edd9ed JK |
209 | /* Helper for make_cleanup_unpush_target. */ |
210 | ||
211 | static void | |
212 | do_unpush_target (void *arg) | |
213 | { | |
19ba03f4 | 214 | struct target_ops *ops = (struct target_ops *) arg; |
c0edd9ed JK |
215 | |
216 | unpush_target (ops); | |
217 | } | |
218 | ||
219 | /* Return a new cleanup that unpushes OPS. */ | |
220 | ||
221 | struct cleanup * | |
222 | make_cleanup_unpush_target (struct target_ops *ops) | |
223 | { | |
e0088cfd | 224 | return make_cleanup (do_unpush_target, ops); |
c0edd9ed JK |
225 | } |
226 | ||
028d0ed5 TJB |
227 | /* Helper for make_cleanup_value_free_to_mark. */ |
228 | ||
229 | static void | |
230 | do_value_free_to_mark (void *value) | |
231 | { | |
232 | value_free_to_mark ((struct value *) value); | |
233 | } | |
234 | ||
235 | /* Free all values allocated since MARK was obtained by value_mark | |
236 | (except for those released) when the cleanup is run. */ | |
237 | ||
238 | struct cleanup * | |
239 | make_cleanup_value_free_to_mark (struct value *mark) | |
240 | { | |
e0088cfd | 241 | return make_cleanup (do_value_free_to_mark, mark); |
028d0ed5 TJB |
242 | } |
243 | ||
72fc29ff TT |
244 | /* Helper for make_cleanup_value_free. */ |
245 | ||
246 | static void | |
247 | do_value_free (void *value) | |
248 | { | |
19ba03f4 | 249 | value_free ((struct value *) value); |
72fc29ff TT |
250 | } |
251 | ||
252 | /* Free VALUE. */ | |
253 | ||
254 | struct cleanup * | |
255 | make_cleanup_value_free (struct value *value) | |
256 | { | |
e0088cfd | 257 | return make_cleanup (do_value_free, value); |
72fc29ff TT |
258 | } |
259 | ||
410a0ff2 SDJ |
260 | /* Helper function for make_cleanup_clear_parser_state. */ |
261 | ||
262 | static void | |
263 | do_clear_parser_state (void *ptr) | |
264 | { | |
265 | struct parser_state **p = (struct parser_state **) ptr; | |
266 | ||
267 | *p = NULL; | |
268 | } | |
269 | ||
270 | /* Clean (i.e., set to NULL) the parser state variable P. */ | |
271 | ||
272 | struct cleanup * | |
273 | make_cleanup_clear_parser_state (struct parser_state **p) | |
274 | { | |
275 | return make_cleanup (do_clear_parser_state, (void *) p); | |
276 | } | |
277 | ||
c906108c SS |
278 | /* This function is useful for cleanups. |
279 | Do | |
280 | ||
c5aa993b JM |
281 | foo = xmalloc (...); |
282 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
283 | |
284 | to arrange to free the object thus allocated. */ | |
285 | ||
286 | void | |
2f9429ae | 287 | free_current_contents (void *ptr) |
c906108c | 288 | { |
19ba03f4 | 289 | void **location = (void **) ptr; |
e0627e85 | 290 | |
e2f9c474 | 291 | if (location == NULL) |
8e65ff28 | 292 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 293 | _("free_current_contents: NULL pointer")); |
2f9429ae | 294 | if (*location != NULL) |
e2f9c474 | 295 | { |
b8c9b27d | 296 | xfree (*location); |
e2f9c474 AC |
297 | *location = NULL; |
298 | } | |
c906108c | 299 | } |
c906108c | 300 | \f |
c5aa993b | 301 | |
8731e58e | 302 | |
f5a96129 AC |
303 | /* Print a warning message. The first argument STRING is the warning |
304 | message, used as an fprintf format string, the second is the | |
305 | va_list of arguments for that string. A warning is unfiltered (not | |
306 | paginated) so that the user does not need to page through each | |
307 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
308 | |
309 | void | |
f5a96129 | 310 | vwarning (const char *string, va_list args) |
c906108c | 311 | { |
9a4105ab AC |
312 | if (deprecated_warning_hook) |
313 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
314 | else |
315 | { | |
c5ac1540 PA |
316 | struct cleanup *old_chain = make_cleanup (null_cleanup, NULL); |
317 | ||
0d2f5c07 | 318 | if (target_supports_terminal_ours ()) |
c5ac1540 PA |
319 | { |
320 | make_cleanup_restore_target_terminal (); | |
321 | target_terminal_ours_for_output (); | |
322 | } | |
0d2f5c07 GB |
323 | if (filtered_printing_initialized ()) |
324 | wrap_here (""); /* Force out any buffered output. */ | |
f5a96129 AC |
325 | gdb_flush (gdb_stdout); |
326 | if (warning_pre_print) | |
306d9ac5 | 327 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
328 | vfprintf_unfiltered (gdb_stderr, string, args); |
329 | fprintf_unfiltered (gdb_stderr, "\n"); | |
c5ac1540 PA |
330 | |
331 | do_cleanups (old_chain); | |
f5a96129 | 332 | } |
c906108c SS |
333 | } |
334 | ||
c906108c SS |
335 | /* Print an error message and return to command level. |
336 | The first argument STRING is the error message, used as a fprintf string, | |
337 | and the remaining args are passed as arguments to it. */ | |
338 | ||
c25c4a8b | 339 | void |
4ce44c66 JM |
340 | verror (const char *string, va_list args) |
341 | { | |
6b1b7650 | 342 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
343 | } |
344 | ||
c25c4a8b | 345 | void |
d7e74731 | 346 | error_stream (const string_file &stream) |
2acceee2 | 347 | { |
d7e74731 | 348 | error (("%s"), stream.c_str ()); |
2acceee2 | 349 | } |
c906108c | 350 | |
2437fd32 GB |
351 | /* Emit a message and abort. */ |
352 | ||
353 | static void ATTRIBUTE_NORETURN | |
354 | abort_with_message (const char *msg) | |
355 | { | |
356 | if (gdb_stderr == NULL) | |
357 | fputs (msg, stderr); | |
358 | else | |
359 | fputs_unfiltered (msg, gdb_stderr); | |
360 | ||
361 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
362 | } | |
363 | ||
7991dee7 JK |
364 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
365 | ||
eae7090b | 366 | void |
7991dee7 JK |
367 | dump_core (void) |
368 | { | |
369 | #ifdef HAVE_SETRLIMIT | |
370 | struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY }; | |
371 | ||
372 | setrlimit (RLIMIT_CORE, &rlim); | |
373 | #endif /* HAVE_SETRLIMIT */ | |
374 | ||
375 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
376 | } | |
377 | ||
3e43a32a | 378 | /* Check whether GDB will be able to dump core using the dump_core |
eae7090b GB |
379 | function. Returns zero if GDB cannot or should not dump core. |
380 | If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected. | |
381 | If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected. */ | |
7991dee7 | 382 | |
eae7090b GB |
383 | int |
384 | can_dump_core (enum resource_limit_kind limit_kind) | |
7991dee7 JK |
385 | { |
386 | #ifdef HAVE_GETRLIMIT | |
387 | struct rlimit rlim; | |
388 | ||
389 | /* Be quiet and assume we can dump if an error is returned. */ | |
390 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
391 | return 1; | |
392 | ||
eae7090b | 393 | switch (limit_kind) |
7991dee7 | 394 | { |
eae7090b GB |
395 | case LIMIT_CUR: |
396 | if (rlim.rlim_cur == 0) | |
397 | return 0; | |
398 | ||
399 | case LIMIT_MAX: | |
400 | if (rlim.rlim_max == 0) | |
401 | return 0; | |
7991dee7 JK |
402 | } |
403 | #endif /* HAVE_GETRLIMIT */ | |
404 | ||
405 | return 1; | |
406 | } | |
407 | ||
eae7090b GB |
408 | /* Print a warning that we cannot dump core. */ |
409 | ||
410 | void | |
411 | warn_cant_dump_core (const char *reason) | |
412 | { | |
413 | fprintf_unfiltered (gdb_stderr, | |
414 | _("%s\nUnable to dump core, use `ulimit -c" | |
415 | " unlimited' before executing GDB next time.\n"), | |
416 | reason); | |
417 | } | |
418 | ||
419 | /* Check whether GDB will be able to dump core using the dump_core | |
420 | function, and print a warning if we cannot. */ | |
421 | ||
422 | static int | |
423 | can_dump_core_warn (enum resource_limit_kind limit_kind, | |
424 | const char *reason) | |
425 | { | |
426 | int core_dump_allowed = can_dump_core (limit_kind); | |
427 | ||
428 | if (!core_dump_allowed) | |
429 | warn_cant_dump_core (reason); | |
430 | ||
431 | return core_dump_allowed; | |
432 | } | |
433 | ||
3c16cced PA |
434 | /* Allow the user to configure the debugger behavior with respect to |
435 | what to do when an internal problem is detected. */ | |
436 | ||
437 | const char internal_problem_ask[] = "ask"; | |
438 | const char internal_problem_yes[] = "yes"; | |
439 | const char internal_problem_no[] = "no"; | |
40478521 | 440 | static const char *const internal_problem_modes[] = |
3c16cced PA |
441 | { |
442 | internal_problem_ask, | |
443 | internal_problem_yes, | |
444 | internal_problem_no, | |
445 | NULL | |
446 | }; | |
3c16cced | 447 | |
581e13c1 | 448 | /* Print a message reporting an internal error/warning. Ask the user |
dec43320 AC |
449 | if they want to continue, dump core, or just exit. Return |
450 | something to indicate a quit. */ | |
c906108c | 451 | |
dec43320 | 452 | struct internal_problem |
c906108c | 453 | { |
dec43320 | 454 | const char *name; |
57fcfb1b | 455 | int user_settable_should_quit; |
3c16cced | 456 | const char *should_quit; |
57fcfb1b | 457 | int user_settable_should_dump_core; |
3c16cced | 458 | const char *should_dump_core; |
dec43320 AC |
459 | }; |
460 | ||
461 | /* Report a problem, internal to GDB, to the user. Once the problem | |
462 | has been reported, and assuming GDB didn't quit, the caller can | |
463 | either allow execution to resume or throw an error. */ | |
464 | ||
a0b31db1 | 465 | static void ATTRIBUTE_PRINTF (4, 0) |
dec43320 | 466 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 467 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 468 | { |
dec43320 | 469 | static int dejavu; |
375fc983 | 470 | int quit_p; |
7be570e7 | 471 | int dump_core_p; |
714b1282 | 472 | char *reason; |
48be7c1b | 473 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); |
c906108c | 474 | |
dec43320 | 475 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
476 | { |
477 | static char msg[] = "Recursive internal problem.\n"; | |
5d502164 | 478 | |
714b1282 AC |
479 | switch (dejavu) |
480 | { | |
481 | case 0: | |
482 | dejavu = 1; | |
483 | break; | |
484 | case 1: | |
485 | dejavu = 2; | |
2437fd32 | 486 | abort_with_message (msg); |
714b1282 AC |
487 | default: |
488 | dejavu = 3; | |
bf1d7d9c JB |
489 | /* Newer GLIBC versions put the warn_unused_result attribute |
490 | on write, but this is one of those rare cases where | |
491 | ignoring the return value is correct. Casting to (void) | |
492 | does not fix this problem. This is the solution suggested | |
493 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
494 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
7991dee7 | 495 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
496 | exit (1); |
497 | } | |
498 | } | |
c906108c | 499 | |
714b1282 AC |
500 | /* Create a string containing the full error/warning message. Need |
501 | to call query with this full string, as otherwize the reason | |
502 | (error/warning) and question become separated. Format using a | |
503 | style similar to a compiler error message. Include extra detail | |
504 | so that the user knows that they are living on the edge. */ | |
505 | { | |
506 | char *msg; | |
5d502164 | 507 | |
e623b504 | 508 | msg = xstrvprintf (fmt, ap); |
3e43a32a MS |
509 | reason = xstrprintf ("%s:%d: %s: %s\n" |
510 | "A problem internal to GDB has been detected,\n" | |
511 | "further debugging may prove unreliable.", | |
512 | file, line, problem->name, msg); | |
714b1282 AC |
513 | xfree (msg); |
514 | make_cleanup (xfree, reason); | |
515 | } | |
7be570e7 | 516 | |
2437fd32 GB |
517 | /* Fall back to abort_with_message if gdb_stderr is not set up. */ |
518 | if (gdb_stderr == NULL) | |
519 | { | |
520 | fputs (reason, stderr); | |
521 | abort_with_message ("\n"); | |
522 | } | |
523 | ||
524 | /* Try to get the message out and at the start of a new line. */ | |
525 | if (target_supports_terminal_ours ()) | |
c5ac1540 PA |
526 | { |
527 | make_cleanup_restore_target_terminal (); | |
528 | target_terminal_ours_for_output (); | |
529 | } | |
2437fd32 GB |
530 | if (filtered_printing_initialized ()) |
531 | begin_line (); | |
532 | ||
196a707b | 533 | /* Emit the message unless query will emit it below. */ |
2437fd32 GB |
534 | if (problem->should_quit != internal_problem_ask |
535 | || !confirm | |
536 | || !filtered_printing_initialized ()) | |
196a707b GB |
537 | fprintf_unfiltered (gdb_stderr, "%s\n", reason); |
538 | ||
3c16cced | 539 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 540 | { |
dec43320 | 541 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
542 | this lessens the likelihood of GDB going into an infinite |
543 | loop. */ | |
2437fd32 | 544 | if (!confirm || !filtered_printing_initialized ()) |
196a707b | 545 | quit_p = 1; |
26bb68be PP |
546 | else |
547 | quit_p = query (_("%s\nQuit this debugging session? "), reason); | |
dec43320 | 548 | } |
3c16cced PA |
549 | else if (problem->should_quit == internal_problem_yes) |
550 | quit_p = 1; | |
551 | else if (problem->should_quit == internal_problem_no) | |
552 | quit_p = 0; | |
553 | else | |
554 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 555 | |
add6c04d GB |
556 | fputs_unfiltered (_("\nThis is a bug, please report it."), gdb_stderr); |
557 | if (REPORT_BUGS_TO[0]) | |
558 | fprintf_unfiltered (gdb_stderr, _(" For instructions, see:\n%s."), | |
559 | REPORT_BUGS_TO); | |
560 | fputs_unfiltered ("\n\n", gdb_stderr); | |
561 | ||
3c16cced | 562 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 563 | { |
eae7090b | 564 | if (!can_dump_core_warn (LIMIT_MAX, reason)) |
7991dee7 | 565 | dump_core_p = 0; |
2437fd32 GB |
566 | else if (!filtered_printing_initialized ()) |
567 | dump_core_p = 1; | |
7991dee7 JK |
568 | else |
569 | { | |
570 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
571 | `dropping' so that it is easier to see that something went | |
572 | wrong in GDB. */ | |
573 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason); | |
574 | } | |
dec43320 | 575 | } |
3c16cced | 576 | else if (problem->should_dump_core == internal_problem_yes) |
eae7090b | 577 | dump_core_p = can_dump_core_warn (LIMIT_MAX, reason); |
3c16cced PA |
578 | else if (problem->should_dump_core == internal_problem_no) |
579 | dump_core_p = 0; | |
580 | else | |
581 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 582 | |
375fc983 | 583 | if (quit_p) |
7be570e7 JM |
584 | { |
585 | if (dump_core_p) | |
7991dee7 | 586 | dump_core (); |
375fc983 AC |
587 | else |
588 | exit (1); | |
7be570e7 JM |
589 | } |
590 | else | |
591 | { | |
592 | if (dump_core_p) | |
375fc983 | 593 | { |
9b265ec2 | 594 | #ifdef HAVE_WORKING_FORK |
375fc983 | 595 | if (fork () == 0) |
7991dee7 | 596 | dump_core (); |
9b265ec2 | 597 | #endif |
375fc983 | 598 | } |
7be570e7 | 599 | } |
96baa820 JM |
600 | |
601 | dejavu = 0; | |
48be7c1b | 602 | do_cleanups (cleanup); |
dec43320 AC |
603 | } |
604 | ||
605 | static struct internal_problem internal_error_problem = { | |
57fcfb1b | 606 | "internal-error", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
607 | }; |
608 | ||
c25c4a8b | 609 | void |
8731e58e | 610 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
611 | { |
612 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
2c51604d | 613 | throw_quit (_("Command aborted.")); |
c906108c SS |
614 | } |
615 | ||
dec43320 | 616 | static struct internal_problem internal_warning_problem = { |
57fcfb1b | 617 | "internal-warning", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
618 | }; |
619 | ||
620 | void | |
8731e58e | 621 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
622 | { |
623 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
624 | } | |
625 | ||
57fcfb1b GB |
626 | static struct internal_problem demangler_warning_problem = { |
627 | "demangler-warning", 1, internal_problem_ask, 0, internal_problem_no | |
628 | }; | |
629 | ||
630 | void | |
631 | demangler_vwarning (const char *file, int line, const char *fmt, va_list ap) | |
632 | { | |
633 | internal_vproblem (&demangler_warning_problem, file, line, fmt, ap); | |
634 | } | |
635 | ||
636 | void | |
637 | demangler_warning (const char *file, int line, const char *string, ...) | |
638 | { | |
639 | va_list ap; | |
640 | ||
641 | va_start (ap, string); | |
642 | demangler_vwarning (file, line, string, ap); | |
643 | va_end (ap); | |
644 | } | |
645 | ||
3c16cced PA |
646 | /* Dummy functions to keep add_prefix_cmd happy. */ |
647 | ||
648 | static void | |
649 | set_internal_problem_cmd (char *args, int from_tty) | |
650 | { | |
651 | } | |
652 | ||
653 | static void | |
654 | show_internal_problem_cmd (char *args, int from_tty) | |
655 | { | |
656 | } | |
657 | ||
658 | /* When GDB reports an internal problem (error or warning) it gives | |
659 | the user the opportunity to quit GDB and/or create a core file of | |
660 | the current debug session. This function registers a few commands | |
661 | that make it possible to specify that GDB should always or never | |
662 | quit or create a core file, without asking. The commands look | |
663 | like: | |
664 | ||
665 | maint set PROBLEM-NAME quit ask|yes|no | |
666 | maint show PROBLEM-NAME quit | |
667 | maint set PROBLEM-NAME corefile ask|yes|no | |
668 | maint show PROBLEM-NAME corefile | |
669 | ||
670 | Where PROBLEM-NAME is currently "internal-error" or | |
671 | "internal-warning". */ | |
672 | ||
673 | static void | |
674 | add_internal_problem_command (struct internal_problem *problem) | |
675 | { | |
676 | struct cmd_list_element **set_cmd_list; | |
677 | struct cmd_list_element **show_cmd_list; | |
678 | char *set_doc; | |
679 | char *show_doc; | |
680 | ||
8d749320 SM |
681 | set_cmd_list = XNEW (struct cmd_list_element *); |
682 | show_cmd_list = XNEW (struct cmd_list_element *); | |
3c16cced PA |
683 | *set_cmd_list = NULL; |
684 | *show_cmd_list = NULL; | |
685 | ||
686 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
687 | problem->name); | |
688 | ||
689 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
690 | problem->name); | |
691 | ||
692 | add_prefix_cmd ((char*) problem->name, | |
693 | class_maintenance, set_internal_problem_cmd, set_doc, | |
694 | set_cmd_list, | |
c4f7c687 MK |
695 | concat ("maintenance set ", problem->name, " ", |
696 | (char *) NULL), | |
3c16cced PA |
697 | 0/*allow-unknown*/, &maintenance_set_cmdlist); |
698 | ||
699 | add_prefix_cmd ((char*) problem->name, | |
700 | class_maintenance, show_internal_problem_cmd, show_doc, | |
701 | show_cmd_list, | |
c4f7c687 MK |
702 | concat ("maintenance show ", problem->name, " ", |
703 | (char *) NULL), | |
3c16cced PA |
704 | 0/*allow-unknown*/, &maintenance_show_cmdlist); |
705 | ||
57fcfb1b GB |
706 | if (problem->user_settable_should_quit) |
707 | { | |
708 | set_doc = xstrprintf (_("Set whether GDB should quit " | |
709 | "when an %s is detected"), | |
710 | problem->name); | |
711 | show_doc = xstrprintf (_("Show whether GDB will quit " | |
712 | "when an %s is detected"), | |
713 | problem->name); | |
714 | add_setshow_enum_cmd ("quit", class_maintenance, | |
715 | internal_problem_modes, | |
716 | &problem->should_quit, | |
717 | set_doc, | |
718 | show_doc, | |
719 | NULL, /* help_doc */ | |
720 | NULL, /* setfunc */ | |
721 | NULL, /* showfunc */ | |
722 | set_cmd_list, | |
723 | show_cmd_list); | |
724 | ||
725 | xfree (set_doc); | |
726 | xfree (show_doc); | |
727 | } | |
1eefb858 | 728 | |
57fcfb1b GB |
729 | if (problem->user_settable_should_dump_core) |
730 | { | |
731 | set_doc = xstrprintf (_("Set whether GDB should create a core " | |
732 | "file of GDB when %s is detected"), | |
733 | problem->name); | |
734 | show_doc = xstrprintf (_("Show whether GDB will create a core " | |
735 | "file of GDB when %s is detected"), | |
736 | problem->name); | |
737 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
738 | internal_problem_modes, | |
739 | &problem->should_dump_core, | |
740 | set_doc, | |
741 | show_doc, | |
742 | NULL, /* help_doc */ | |
743 | NULL, /* setfunc */ | |
744 | NULL, /* showfunc */ | |
745 | set_cmd_list, | |
746 | show_cmd_list); | |
747 | ||
748 | xfree (set_doc); | |
749 | xfree (show_doc); | |
750 | } | |
3c16cced PA |
751 | } |
752 | ||
0cf4063e JB |
753 | /* Return a newly allocated string, containing the PREFIX followed |
754 | by the system error message for errno (separated by a colon). | |
755 | ||
756 | The result must be deallocated after use. */ | |
757 | ||
758 | static char * | |
759 | perror_string (const char *prefix) | |
760 | { | |
761 | char *err; | |
762 | char *combined; | |
763 | ||
764 | err = safe_strerror (errno); | |
765 | combined = (char *) xmalloc (strlen (err) + strlen (prefix) + 3); | |
766 | strcpy (combined, prefix); | |
767 | strcat (combined, ": "); | |
768 | strcat (combined, err); | |
769 | ||
770 | return combined; | |
771 | } | |
772 | ||
c906108c | 773 | /* Print the system error message for errno, and also mention STRING |
598d3636 JK |
774 | as the file name for which the error was encountered. Use ERRCODE |
775 | for the thrown exception. Then return to command level. */ | |
c906108c | 776 | |
c25c4a8b | 777 | void |
598d3636 | 778 | throw_perror_with_name (enum errors errcode, const char *string) |
c906108c | 779 | { |
c906108c SS |
780 | char *combined; |
781 | ||
0cf4063e JB |
782 | combined = perror_string (string); |
783 | make_cleanup (xfree, combined); | |
c906108c SS |
784 | |
785 | /* I understand setting these is a matter of taste. Still, some people | |
786 | may clear errno but not know about bfd_error. Doing this here is not | |
581e13c1 | 787 | unreasonable. */ |
c906108c SS |
788 | bfd_set_error (bfd_error_no_error); |
789 | errno = 0; | |
790 | ||
598d3636 JK |
791 | throw_error (errcode, _("%s."), combined); |
792 | } | |
793 | ||
794 | /* See throw_perror_with_name, ERRCODE defaults here to GENERIC_ERROR. */ | |
795 | ||
796 | void | |
797 | perror_with_name (const char *string) | |
798 | { | |
799 | throw_perror_with_name (GENERIC_ERROR, string); | |
c906108c SS |
800 | } |
801 | ||
7c647d61 JB |
802 | /* Same as perror_with_name except that it prints a warning instead |
803 | of throwing an error. */ | |
804 | ||
805 | void | |
806 | perror_warning_with_name (const char *string) | |
807 | { | |
808 | char *combined; | |
809 | ||
810 | combined = perror_string (string); | |
811 | warning (_("%s"), combined); | |
812 | xfree (combined); | |
813 | } | |
814 | ||
c906108c SS |
815 | /* Print the system error message for ERRCODE, and also mention STRING |
816 | as the file name for which the error was encountered. */ | |
817 | ||
818 | void | |
6972bc8b | 819 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
820 | { |
821 | char *err; | |
822 | char *combined; | |
823 | ||
824 | err = safe_strerror (errcode); | |
825 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
826 | strcpy (combined, string); | |
827 | strcat (combined, ": "); | |
828 | strcat (combined, err); | |
829 | ||
830 | /* We want anything which was printed on stdout to come out first, before | |
831 | this message. */ | |
832 | gdb_flush (gdb_stdout); | |
833 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
834 | } | |
835 | ||
836 | /* Control C eventually causes this to be called, at a convenient time. */ | |
837 | ||
838 | void | |
fba45db2 | 839 | quit (void) |
c906108c | 840 | { |
f38d3ad1 PA |
841 | struct ui *ui = current_ui; |
842 | ||
06c868a8 JK |
843 | if (sync_quit_force_run) |
844 | { | |
845 | sync_quit_force_run = 0; | |
268a799a | 846 | quit_force (NULL, 0); |
06c868a8 JK |
847 | } |
848 | ||
7be570e7 JM |
849 | #ifdef __MSDOS__ |
850 | /* No steenking SIGINT will ever be coming our way when the | |
851 | program is resumed. Don't lie. */ | |
2c51604d | 852 | throw_quit ("Quit"); |
7be570e7 | 853 | #else |
c906108c | 854 | if (job_control |
8731e58e AC |
855 | /* If there is no terminal switching for this target, then we can't |
856 | possibly get screwed by the lack of job control. */ | |
b0ed115f | 857 | || !target_supports_terminal_ours ()) |
2c51604d | 858 | throw_quit ("Quit"); |
c906108c | 859 | else |
2c51604d | 860 | throw_quit ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 861 | #endif |
c906108c SS |
862 | } |
863 | ||
abc56d60 PA |
864 | /* See defs.h. */ |
865 | ||
866 | void | |
867 | maybe_quit (void) | |
868 | { | |
048094ac | 869 | if (sync_quit_force_run) |
abc56d60 | 870 | quit (); |
048094ac PA |
871 | |
872 | quit_handler (); | |
873 | ||
abc56d60 PA |
874 | if (deprecated_interactive_hook) |
875 | deprecated_interactive_hook (); | |
abc56d60 PA |
876 | } |
877 | ||
c906108c | 878 | \f |
c906108c | 879 | /* Called when a memory allocation fails, with the number of bytes of |
581e13c1 | 880 | memory requested in SIZE. */ |
c906108c | 881 | |
c25c4a8b | 882 | void |
d26e3629 | 883 | malloc_failure (long size) |
c906108c SS |
884 | { |
885 | if (size > 0) | |
886 | { | |
8e65ff28 | 887 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 888 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 889 | size); |
c906108c SS |
890 | } |
891 | else | |
892 | { | |
e2e0b3e5 | 893 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
894 | } |
895 | } | |
896 | ||
c906108c SS |
897 | /* My replacement for the read system call. |
898 | Used like `read' but keeps going if `read' returns too soon. */ | |
899 | ||
900 | int | |
fba45db2 | 901 | myread (int desc, char *addr, int len) |
c906108c | 902 | { |
52f0bd74 | 903 | int val; |
c906108c SS |
904 | int orglen = len; |
905 | ||
906 | while (len > 0) | |
907 | { | |
908 | val = read (desc, addr, len); | |
909 | if (val < 0) | |
910 | return val; | |
911 | if (val == 0) | |
912 | return orglen - len; | |
913 | len -= val; | |
914 | addr += val; | |
915 | } | |
916 | return orglen; | |
917 | } | |
d26e3629 | 918 | |
c906108c | 919 | void |
aa1ee363 | 920 | print_spaces (int n, struct ui_file *file) |
c906108c | 921 | { |
392a587b | 922 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
923 | } |
924 | ||
925 | /* Print a host address. */ | |
926 | ||
927 | void | |
b80c3053 | 928 | gdb_print_host_address_1 (const void *addr, struct ui_file *stream) |
c906108c | 929 | { |
ea8992ce | 930 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 931 | } |
7c50a931 DE |
932 | |
933 | /* See utils.h. */ | |
934 | ||
935 | char * | |
936 | make_hex_string (const gdb_byte *data, size_t length) | |
937 | { | |
224c3ddb | 938 | char *result = (char *) xmalloc (length * 2 + 1); |
7c50a931 DE |
939 | char *p; |
940 | size_t i; | |
941 | ||
942 | p = result; | |
943 | for (i = 0; i < length; ++i) | |
dc4d6886 | 944 | p += xsnprintf (p, 3, "%02x", data[i]); |
7c50a931 DE |
945 | *p = '\0'; |
946 | return result; | |
947 | } | |
948 | ||
c906108c | 949 | \f |
c5aa993b | 950 | |
3eb7562a PA |
951 | /* A cleanup that simply calls ui_unregister_input_event_handler. */ |
952 | ||
953 | static void | |
954 | ui_unregister_input_event_handler_cleanup (void *ui) | |
955 | { | |
956 | ui_unregister_input_event_handler ((struct ui *) ui); | |
957 | } | |
958 | ||
959 | /* Set up to handle input. */ | |
960 | ||
961 | static struct cleanup * | |
962 | prepare_to_handle_input (void) | |
963 | { | |
964 | struct cleanup *old_chain; | |
965 | ||
966 | old_chain = make_cleanup_restore_target_terminal (); | |
967 | target_terminal_ours (); | |
968 | ||
969 | ui_register_input_event_handler (current_ui); | |
970 | if (current_ui->prompt_state == PROMPT_BLOCKED) | |
971 | make_cleanup (ui_unregister_input_event_handler_cleanup, current_ui); | |
972 | ||
973 | make_cleanup_override_quit_handler (default_quit_handler); | |
974 | ||
975 | return old_chain; | |
976 | } | |
977 | ||
db1ff28b JK |
978 | \f |
979 | ||
981c7f5a | 980 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 981 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
982 | answer is yes, or default the answer to the specified default |
983 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
984 | default answer, or '\0' for no default. | |
cbdeadca JJ |
985 | CTLSTR is the control string and should end in "? ". It should |
986 | not say how to answer, because we do that. | |
987 | ARGS are the arguments passed along with the CTLSTR argument to | |
988 | printf. */ | |
989 | ||
a0b31db1 | 990 | static int ATTRIBUTE_PRINTF (1, 0) |
cbdeadca JJ |
991 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
992 | { | |
cbdeadca JJ |
993 | int ans2; |
994 | int retval; | |
995 | int def_value; | |
996 | char def_answer, not_def_answer; | |
a121b7c1 PA |
997 | const char *y_string, *n_string; |
998 | char *question, *prompt; | |
80dbc9fd | 999 | struct cleanup *old_chain; |
cbdeadca JJ |
1000 | |
1001 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
1002 | if (defchar == '\0') |
1003 | { | |
1004 | def_value = 1; | |
1005 | def_answer = 'Y'; | |
1006 | not_def_answer = 'N'; | |
1007 | y_string = "y"; | |
1008 | n_string = "n"; | |
1009 | } | |
1010 | else if (defchar == 'y') | |
cbdeadca JJ |
1011 | { |
1012 | def_value = 1; | |
1013 | def_answer = 'Y'; | |
1014 | not_def_answer = 'N'; | |
1015 | y_string = "[y]"; | |
1016 | n_string = "n"; | |
1017 | } | |
1018 | else | |
1019 | { | |
1020 | def_value = 0; | |
1021 | def_answer = 'N'; | |
1022 | not_def_answer = 'Y'; | |
1023 | y_string = "y"; | |
1024 | n_string = "[n]"; | |
1025 | } | |
1026 | ||
981c7f5a | 1027 | /* Automatically answer the default value if the user did not want |
a502cf95 | 1028 | prompts or the command was issued with the server prefix. */ |
e360902b | 1029 | if (!confirm || server_command) |
981c7f5a DJ |
1030 | return def_value; |
1031 | ||
1032 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 1033 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
1034 | way, important error messages don't get lost when talking to GDB |
1035 | over a pipe. */ | |
268a799a | 1036 | if (current_ui->instream != current_ui->stdin_stream |
26a06916 SM |
1037 | || !input_interactive_p (current_ui) |
1038 | /* Restrict queries to the main UI. */ | |
1039 | || current_ui != main_ui) | |
981c7f5a | 1040 | { |
3eb7562a PA |
1041 | old_chain = make_cleanup_restore_target_terminal (); |
1042 | ||
651ce16a | 1043 | target_terminal_ours_for_output (); |
981c7f5a DJ |
1044 | wrap_here (""); |
1045 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1046 | ||
3e43a32a MS |
1047 | printf_filtered (_("(%s or %s) [answered %c; " |
1048 | "input not from terminal]\n"), | |
981c7f5a DJ |
1049 | y_string, n_string, def_answer); |
1050 | gdb_flush (gdb_stdout); | |
1051 | ||
651ce16a | 1052 | do_cleanups (old_chain); |
981c7f5a DJ |
1053 | return def_value; |
1054 | } | |
1055 | ||
9a4105ab | 1056 | if (deprecated_query_hook) |
cbdeadca | 1057 | { |
651ce16a | 1058 | int res; |
cbdeadca | 1059 | |
3eb7562a | 1060 | old_chain = make_cleanup_restore_target_terminal (); |
651ce16a PA |
1061 | res = deprecated_query_hook (ctlstr, args); |
1062 | do_cleanups (old_chain); | |
1063 | return res; | |
1064 | } | |
80dbc9fd | 1065 | |
981c7f5a DJ |
1066 | /* Format the question outside of the loop, to avoid reusing args. */ |
1067 | question = xstrvprintf (ctlstr, args); | |
3eb7562a | 1068 | old_chain = make_cleanup (xfree, question); |
588dcc3e PP |
1069 | prompt = xstrprintf (_("%s%s(%s or %s) %s"), |
1070 | annotation_level > 1 ? "\n\032\032pre-query\n" : "", | |
1071 | question, y_string, n_string, | |
1072 | annotation_level > 1 ? "\n\032\032query\n" : ""); | |
80dbc9fd | 1073 | make_cleanup (xfree, prompt); |
981c7f5a | 1074 | |
dcb07cfa PA |
1075 | /* Used to add duration we waited for user to respond to |
1076 | prompt_for_continue_wait_time. */ | |
1077 | using namespace std::chrono; | |
1078 | steady_clock::time_point prompt_started = steady_clock::now (); | |
260c0b2a | 1079 | |
3eb7562a | 1080 | prepare_to_handle_input (); |
651ce16a | 1081 | |
cbdeadca JJ |
1082 | while (1) |
1083 | { | |
588dcc3e | 1084 | char *response, answer; |
cbdeadca | 1085 | |
cbdeadca | 1086 | gdb_flush (gdb_stdout); |
588dcc3e | 1087 | response = gdb_readline_wrapper (prompt); |
cbdeadca | 1088 | |
588dcc3e | 1089 | if (response == NULL) /* C-d */ |
cbdeadca | 1090 | { |
fa3fd85b | 1091 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
1092 | retval = def_value; |
1093 | break; | |
1094 | } | |
588dcc3e PP |
1095 | |
1096 | answer = response[0]; | |
1097 | xfree (response); | |
cbdeadca JJ |
1098 | |
1099 | if (answer >= 'a') | |
1100 | answer -= 040; | |
1101 | /* Check answer. For the non-default, the user must specify | |
1102 | the non-default explicitly. */ | |
1103 | if (answer == not_def_answer) | |
1104 | { | |
1105 | retval = !def_value; | |
1106 | break; | |
1107 | } | |
981c7f5a DJ |
1108 | /* Otherwise, if a default was specified, the user may either |
1109 | specify the required input or have it default by entering | |
1110 | nothing. */ | |
1111 | if (answer == def_answer | |
588dcc3e | 1112 | || (defchar != '\0' && answer == '\0')) |
cbdeadca JJ |
1113 | { |
1114 | retval = def_value; | |
1115 | break; | |
1116 | } | |
1117 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 1118 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
1119 | y_string, n_string); |
1120 | } | |
1121 | ||
260c0b2a | 1122 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
dcb07cfa | 1123 | prompt_for_continue_wait_time += steady_clock::now () - prompt_started; |
260c0b2a | 1124 | |
cbdeadca | 1125 | if (annotation_level > 1) |
a3f17187 | 1126 | printf_filtered (("\n\032\032post-query\n")); |
80dbc9fd | 1127 | do_cleanups (old_chain); |
cbdeadca JJ |
1128 | return retval; |
1129 | } | |
1130 | \f | |
1131 | ||
1132 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1133 | answer is yes, or 0 if answer is defaulted. | |
1134 | Takes three args which are given to printf to print the question. | |
1135 | The first, a control string, should end in "? ". | |
1136 | It should not say how to answer, because we do that. */ | |
1137 | ||
1138 | int | |
1139 | nquery (const char *ctlstr, ...) | |
1140 | { | |
1141 | va_list args; | |
899500d6 | 1142 | int ret; |
cbdeadca JJ |
1143 | |
1144 | va_start (args, ctlstr); | |
899500d6 | 1145 | ret = defaulted_query (ctlstr, 'n', args); |
cbdeadca | 1146 | va_end (args); |
899500d6 | 1147 | return ret; |
cbdeadca JJ |
1148 | } |
1149 | ||
1150 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1151 | answer is yes, or 1 if answer is defaulted. | |
1152 | Takes three args which are given to printf to print the question. | |
1153 | The first, a control string, should end in "? ". | |
1154 | It should not say how to answer, because we do that. */ | |
1155 | ||
1156 | int | |
1157 | yquery (const char *ctlstr, ...) | |
1158 | { | |
1159 | va_list args; | |
899500d6 | 1160 | int ret; |
cbdeadca JJ |
1161 | |
1162 | va_start (args, ctlstr); | |
899500d6 | 1163 | ret = defaulted_query (ctlstr, 'y', args); |
cbdeadca | 1164 | va_end (args); |
899500d6 | 1165 | return ret; |
cbdeadca JJ |
1166 | } |
1167 | ||
981c7f5a DJ |
1168 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
1169 | Takes three args which are given to printf to print the question. | |
1170 | The first, a control string, should end in "? ". | |
1171 | It should not say how to answer, because we do that. */ | |
1172 | ||
1173 | int | |
1174 | query (const char *ctlstr, ...) | |
1175 | { | |
1176 | va_list args; | |
899500d6 | 1177 | int ret; |
981c7f5a DJ |
1178 | |
1179 | va_start (args, ctlstr); | |
899500d6 | 1180 | ret = defaulted_query (ctlstr, '\0', args); |
981c7f5a | 1181 | va_end (args); |
899500d6 | 1182 | return ret; |
981c7f5a DJ |
1183 | } |
1184 | ||
6c7a06a3 TT |
1185 | /* A helper for parse_escape that converts a host character to a |
1186 | target character. C is the host character. If conversion is | |
1187 | possible, then the target character is stored in *TARGET_C and the | |
1188 | function returns 1. Otherwise, the function returns 0. */ | |
1189 | ||
1190 | static int | |
f870a310 | 1191 | host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c) |
234b45d4 | 1192 | { |
6c7a06a3 | 1193 | char the_char = c; |
6c7a06a3 | 1194 | int result = 0; |
234b45d4 | 1195 | |
8268c778 | 1196 | auto_obstack host_data; |
234b45d4 | 1197 | |
f870a310 | 1198 | convert_between_encodings (target_charset (gdbarch), host_charset (), |
ac91cd70 PA |
1199 | (gdb_byte *) &the_char, 1, 1, |
1200 | &host_data, translit_none); | |
6c7a06a3 TT |
1201 | |
1202 | if (obstack_object_size (&host_data) == 1) | |
1203 | { | |
1204 | result = 1; | |
1205 | *target_c = *(char *) obstack_base (&host_data); | |
1206 | } | |
1207 | ||
6c7a06a3 | 1208 | return result; |
234b45d4 KB |
1209 | } |
1210 | ||
c906108c SS |
1211 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1212 | containing a pointer to the string to parse. That pointer | |
1213 | should point to the character after the \. That pointer | |
1214 | is updated past the characters we use. The value of the | |
1215 | escape sequence is returned. | |
1216 | ||
1217 | A negative value means the sequence \ newline was seen, | |
1218 | which is supposed to be equivalent to nothing at all. | |
1219 | ||
1220 | If \ is followed by a null character, we return a negative | |
1221 | value and leave the string pointer pointing at the null character. | |
1222 | ||
1223 | If \ is followed by 000, we return 0 and leave the string pointer | |
1224 | after the zeros. A value of 0 does not mean end of string. */ | |
1225 | ||
1226 | int | |
d7561cbb | 1227 | parse_escape (struct gdbarch *gdbarch, const char **string_ptr) |
c906108c | 1228 | { |
581e13c1 | 1229 | int target_char = -2; /* Initialize to avoid GCC warnings. */ |
52f0bd74 | 1230 | int c = *(*string_ptr)++; |
e0627e85 | 1231 | |
6c7a06a3 TT |
1232 | switch (c) |
1233 | { | |
8731e58e AC |
1234 | case '\n': |
1235 | return -2; | |
1236 | case 0: | |
1237 | (*string_ptr)--; | |
1238 | return 0; | |
8731e58e AC |
1239 | |
1240 | case '0': | |
1241 | case '1': | |
1242 | case '2': | |
1243 | case '3': | |
1244 | case '4': | |
1245 | case '5': | |
1246 | case '6': | |
1247 | case '7': | |
1248 | { | |
6c7a06a3 | 1249 | int i = host_hex_value (c); |
aa1ee363 | 1250 | int count = 0; |
8731e58e AC |
1251 | while (++count < 3) |
1252 | { | |
5cb316ef | 1253 | c = (**string_ptr); |
6c7a06a3 | 1254 | if (isdigit (c) && c != '8' && c != '9') |
8731e58e | 1255 | { |
5cb316ef | 1256 | (*string_ptr)++; |
8731e58e | 1257 | i *= 8; |
6c7a06a3 | 1258 | i += host_hex_value (c); |
8731e58e AC |
1259 | } |
1260 | else | |
1261 | { | |
8731e58e AC |
1262 | break; |
1263 | } | |
1264 | } | |
1265 | return i; | |
1266 | } | |
6c7a06a3 TT |
1267 | |
1268 | case 'a': | |
1269 | c = '\a'; | |
1270 | break; | |
1271 | case 'b': | |
1272 | c = '\b'; | |
1273 | break; | |
1274 | case 'f': | |
1275 | c = '\f'; | |
1276 | break; | |
1277 | case 'n': | |
1278 | c = '\n'; | |
1279 | break; | |
1280 | case 'r': | |
1281 | c = '\r'; | |
1282 | break; | |
1283 | case 't': | |
1284 | c = '\t'; | |
1285 | break; | |
1286 | case 'v': | |
1287 | c = '\v'; | |
1288 | break; | |
1289 | ||
1290 | default: | |
1291 | break; | |
1292 | } | |
1293 | ||
f870a310 | 1294 | if (!host_char_to_target (gdbarch, c, &target_char)) |
3351ea09 JB |
1295 | error (_("The escape sequence `\\%c' is equivalent to plain `%c'," |
1296 | " which has no equivalent\nin the `%s' character set."), | |
905b671b | 1297 | c, c, target_charset (gdbarch)); |
6c7a06a3 | 1298 | return target_char; |
c906108c SS |
1299 | } |
1300 | \f | |
1301 | /* Print the character C on STREAM as part of the contents of a literal | |
1302 | string whose delimiter is QUOTER. Note that this routine should only | |
f9acce4a | 1303 | be called for printing things which are independent of the language |
6ef284bd SM |
1304 | of the program being debugged. |
1305 | ||
1306 | printchar will normally escape backslashes and instances of QUOTER. If | |
1307 | QUOTER is 0, printchar won't escape backslashes or any quoting character. | |
1308 | As a side effect, if you pass the backslash character as the QUOTER, | |
1309 | printchar will escape backslashes as usual, but not any other quoting | |
1310 | character. */ | |
c906108c | 1311 | |
43e526b9 | 1312 | static void |
74f832da | 1313 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
bee0189a DJ |
1314 | void (*do_fprintf) (struct ui_file *, const char *, ...) |
1315 | ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter) | |
c906108c | 1316 | { |
c906108c SS |
1317 | c &= 0xFF; /* Avoid sign bit follies */ |
1318 | ||
c5aa993b JM |
1319 | if (c < 0x20 || /* Low control chars */ |
1320 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1321 | (sevenbit_strings && c >= 0x80)) | |
1322 | { /* high order bit set */ | |
1323 | switch (c) | |
1324 | { | |
1325 | case '\n': | |
43e526b9 | 1326 | do_fputs ("\\n", stream); |
c5aa993b JM |
1327 | break; |
1328 | case '\b': | |
43e526b9 | 1329 | do_fputs ("\\b", stream); |
c5aa993b JM |
1330 | break; |
1331 | case '\t': | |
43e526b9 | 1332 | do_fputs ("\\t", stream); |
c5aa993b JM |
1333 | break; |
1334 | case '\f': | |
43e526b9 | 1335 | do_fputs ("\\f", stream); |
c5aa993b JM |
1336 | break; |
1337 | case '\r': | |
43e526b9 | 1338 | do_fputs ("\\r", stream); |
c5aa993b JM |
1339 | break; |
1340 | case '\033': | |
43e526b9 | 1341 | do_fputs ("\\e", stream); |
c5aa993b JM |
1342 | break; |
1343 | case '\007': | |
43e526b9 | 1344 | do_fputs ("\\a", stream); |
c5aa993b JM |
1345 | break; |
1346 | default: | |
43e526b9 | 1347 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1348 | break; |
1349 | } | |
1350 | } | |
1351 | else | |
1352 | { | |
6ef284bd | 1353 | if (quoter != 0 && (c == '\\' || c == quoter)) |
43e526b9 JM |
1354 | do_fputs ("\\", stream); |
1355 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1356 | } |
c906108c | 1357 | } |
43e526b9 JM |
1358 | |
1359 | /* Print the character C on STREAM as part of the contents of a | |
1360 | literal string whose delimiter is QUOTER. Note that these routines | |
1361 | should only be call for printing things which are independent of | |
581e13c1 | 1362 | the language of the program being debugged. */ |
43e526b9 JM |
1363 | |
1364 | void | |
fba45db2 | 1365 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1366 | { |
1367 | while (*str) | |
1368 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1369 | } | |
1370 | ||
1371 | void | |
fba45db2 | 1372 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1373 | { |
1374 | while (*str) | |
1375 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1376 | } | |
1377 | ||
0876f84a DJ |
1378 | void |
1379 | fputstrn_filtered (const char *str, int n, int quoter, | |
1380 | struct ui_file *stream) | |
1381 | { | |
1382 | int i; | |
e0627e85 | 1383 | |
0876f84a DJ |
1384 | for (i = 0; i < n; i++) |
1385 | printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter); | |
1386 | } | |
1387 | ||
43e526b9 | 1388 | void |
8731e58e AC |
1389 | fputstrn_unfiltered (const char *str, int n, int quoter, |
1390 | struct ui_file *stream) | |
43e526b9 JM |
1391 | { |
1392 | int i; | |
5d502164 | 1393 | |
43e526b9 JM |
1394 | for (i = 0; i < n; i++) |
1395 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1396 | } | |
c906108c | 1397 | \f |
c5aa993b | 1398 | |
c906108c SS |
1399 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1400 | static unsigned int lines_per_page; | |
920d2a44 AC |
1401 | static void |
1402 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1403 | struct cmd_list_element *c, const char *value) | |
1404 | { | |
3e43a32a MS |
1405 | fprintf_filtered (file, |
1406 | _("Number of lines gdb thinks are in a page is %s.\n"), | |
920d2a44 AC |
1407 | value); |
1408 | } | |
eb0d3137 | 1409 | |
cbfbd72a | 1410 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1411 | static unsigned int chars_per_line; |
920d2a44 AC |
1412 | static void |
1413 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1414 | struct cmd_list_element *c, const char *value) | |
1415 | { | |
3e43a32a MS |
1416 | fprintf_filtered (file, |
1417 | _("Number of characters gdb thinks " | |
1418 | "are in a line is %s.\n"), | |
920d2a44 AC |
1419 | value); |
1420 | } | |
eb0d3137 | 1421 | |
c906108c SS |
1422 | /* Current count of lines printed on this page, chars on this line. */ |
1423 | static unsigned int lines_printed, chars_printed; | |
1424 | ||
1425 | /* Buffer and start column of buffered text, for doing smarter word- | |
1426 | wrapping. When someone calls wrap_here(), we start buffering output | |
1427 | that comes through fputs_filtered(). If we see a newline, we just | |
1428 | spit it out and forget about the wrap_here(). If we see another | |
1429 | wrap_here(), we spit it out and remember the newer one. If we see | |
1430 | the end of the line, we spit out a newline, the indent, and then | |
1431 | the buffered output. */ | |
1432 | ||
1433 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1434 | are waiting to be output (they have already been counted in chars_printed). | |
1435 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1436 | static char *wrap_buffer; | |
1437 | ||
1438 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1439 | static char *wrap_pointer; | |
1440 | ||
1441 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1442 | is non-zero. */ | |
d2c0eef4 | 1443 | static const char *wrap_indent; |
c906108c SS |
1444 | |
1445 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1446 | is not in effect. */ | |
1447 | static int wrap_column; | |
c906108c | 1448 | \f |
c5aa993b | 1449 | |
26c4b26f | 1450 | /* Initialize the number of lines per page and chars per line. */ |
eb0d3137 | 1451 | |
c906108c | 1452 | void |
fba45db2 | 1453 | init_page_info (void) |
c906108c | 1454 | { |
5da1313b JK |
1455 | if (batch_flag) |
1456 | { | |
1457 | lines_per_page = UINT_MAX; | |
1458 | chars_per_line = UINT_MAX; | |
1459 | } | |
1460 | else | |
c906108c | 1461 | #if defined(TUI) |
5ecb1806 | 1462 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1463 | #endif |
1464 | { | |
eb0d3137 | 1465 | int rows, cols; |
c906108c | 1466 | |
ec145965 EZ |
1467 | #if defined(__GO32__) |
1468 | rows = ScreenRows (); | |
1469 | cols = ScreenCols (); | |
1470 | lines_per_page = rows; | |
1471 | chars_per_line = cols; | |
1472 | #else | |
eb0d3137 MK |
1473 | /* Make sure Readline has initialized its terminal settings. */ |
1474 | rl_reset_terminal (NULL); | |
c906108c | 1475 | |
eb0d3137 MK |
1476 | /* Get the screen size from Readline. */ |
1477 | rl_get_screen_size (&rows, &cols); | |
1478 | lines_per_page = rows; | |
1479 | chars_per_line = cols; | |
c906108c | 1480 | |
1a66331e PM |
1481 | /* Readline should have fetched the termcap entry for us. |
1482 | Only try to use tgetnum function if rl_get_screen_size | |
1483 | did not return a useful value. */ | |
a121b7c1 | 1484 | if (((rows <= 0) && (tgetnum ((char *) "li") < 0)) |
e681cf3f EZ |
1485 | /* Also disable paging if inside Emacs. $EMACS was used |
1486 | before Emacs v25.1, $INSIDE_EMACS is used since then. */ | |
1487 | || getenv ("EMACS") || getenv ("INSIDE_EMACS")) | |
eb0d3137 | 1488 | { |
1a66331e PM |
1489 | /* The number of lines per page is not mentioned in the terminal |
1490 | description or EMACS evironment variable is set. This probably | |
1491 | means that paging is not useful, so disable paging. */ | |
eb0d3137 MK |
1492 | lines_per_page = UINT_MAX; |
1493 | } | |
c906108c | 1494 | |
c906108c | 1495 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1496 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1497 | lines_per_page = UINT_MAX; |
eb0d3137 | 1498 | #endif |
ec145965 | 1499 | } |
eb0d3137 | 1500 | |
24b73f8e PP |
1501 | /* We handle SIGWINCH ourselves. */ |
1502 | rl_catch_sigwinch = 0; | |
1503 | ||
eb0d3137 | 1504 | set_screen_size (); |
c5aa993b | 1505 | set_width (); |
c906108c SS |
1506 | } |
1507 | ||
2437fd32 GB |
1508 | /* Return nonzero if filtered printing is initialized. */ |
1509 | int | |
1510 | filtered_printing_initialized (void) | |
1511 | { | |
1512 | return wrap_buffer != NULL; | |
1513 | } | |
1514 | ||
5da1313b JK |
1515 | /* Helper for make_cleanup_restore_page_info. */ |
1516 | ||
1517 | static void | |
1518 | do_restore_page_info_cleanup (void *arg) | |
1519 | { | |
1520 | set_screen_size (); | |
1521 | set_width (); | |
1522 | } | |
1523 | ||
1524 | /* Provide cleanup for restoring the terminal size. */ | |
1525 | ||
1526 | struct cleanup * | |
1527 | make_cleanup_restore_page_info (void) | |
1528 | { | |
1529 | struct cleanup *back_to; | |
1530 | ||
1531 | back_to = make_cleanup (do_restore_page_info_cleanup, NULL); | |
1532 | make_cleanup_restore_uinteger (&lines_per_page); | |
1533 | make_cleanup_restore_uinteger (&chars_per_line); | |
1534 | ||
1535 | return back_to; | |
1536 | } | |
1537 | ||
1538 | /* Temporarily set BATCH_FLAG and the associated unlimited terminal size. | |
1539 | Provide cleanup for restoring the original state. */ | |
1540 | ||
1541 | struct cleanup * | |
1542 | set_batch_flag_and_make_cleanup_restore_page_info (void) | |
1543 | { | |
1544 | struct cleanup *back_to = make_cleanup_restore_page_info (); | |
1545 | ||
1546 | make_cleanup_restore_integer (&batch_flag); | |
1547 | batch_flag = 1; | |
1548 | init_page_info (); | |
1549 | ||
1550 | return back_to; | |
1551 | } | |
1552 | ||
eb0d3137 MK |
1553 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1554 | ||
1555 | static void | |
1556 | set_screen_size (void) | |
1557 | { | |
1558 | int rows = lines_per_page; | |
1559 | int cols = chars_per_line; | |
1560 | ||
1561 | if (rows <= 0) | |
1562 | rows = INT_MAX; | |
1563 | ||
1564 | if (cols <= 0) | |
0caa462c | 1565 | cols = INT_MAX; |
eb0d3137 MK |
1566 | |
1567 | /* Update Readline's idea of the terminal size. */ | |
1568 | rl_set_screen_size (rows, cols); | |
1569 | } | |
1570 | ||
1571 | /* Reinitialize WRAP_BUFFER according to the current value of | |
1572 | CHARS_PER_LINE. */ | |
1573 | ||
c906108c | 1574 | static void |
fba45db2 | 1575 | set_width (void) |
c906108c SS |
1576 | { |
1577 | if (chars_per_line == 0) | |
c5aa993b | 1578 | init_page_info (); |
c906108c SS |
1579 | |
1580 | if (!wrap_buffer) | |
1581 | { | |
1582 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1583 | wrap_buffer[0] = '\0'; | |
1584 | } | |
1585 | else | |
1586 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 1587 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
1588 | } |
1589 | ||
c5aa993b | 1590 | static void |
fba45db2 | 1591 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1592 | { |
eb0d3137 | 1593 | set_screen_size (); |
c906108c SS |
1594 | set_width (); |
1595 | } | |
1596 | ||
eb0d3137 MK |
1597 | static void |
1598 | set_height_command (char *args, int from_tty, struct cmd_list_element *c) | |
1599 | { | |
1600 | set_screen_size (); | |
1601 | } | |
1602 | ||
d6e5e7f7 PP |
1603 | /* See utils.h. */ |
1604 | ||
1605 | void | |
1606 | set_screen_width_and_height (int width, int height) | |
1607 | { | |
1608 | lines_per_page = height; | |
1609 | chars_per_line = width; | |
1610 | ||
1611 | set_screen_size (); | |
1612 | set_width (); | |
1613 | } | |
1614 | ||
c906108c | 1615 | /* Wait, so the user can read what's on the screen. Prompt the user |
720d2e96 PA |
1616 | to continue by pressing RETURN. 'q' is also provided because |
1617 | telling users what to do in the prompt is more user-friendly than | |
1618 | expecting them to think of Ctrl-C/SIGINT. */ | |
c906108c SS |
1619 | |
1620 | static void | |
fba45db2 | 1621 | prompt_for_continue (void) |
c906108c SS |
1622 | { |
1623 | char *ignore; | |
1624 | char cont_prompt[120]; | |
dcb07cfa | 1625 | struct cleanup *old_chain = make_cleanup (null_cleanup, NULL); |
260c0b2a DE |
1626 | /* Used to add duration we waited for user to respond to |
1627 | prompt_for_continue_wait_time. */ | |
dcb07cfa PA |
1628 | using namespace std::chrono; |
1629 | steady_clock::time_point prompt_started = steady_clock::now (); | |
c906108c SS |
1630 | |
1631 | if (annotation_level > 1) | |
a3f17187 | 1632 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
1633 | |
1634 | strcpy (cont_prompt, | |
1635 | "---Type <return> to continue, or q <return> to quit---"); | |
1636 | if (annotation_level > 1) | |
1637 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1638 | ||
720d2e96 PA |
1639 | /* We must do this *before* we call gdb_readline_wrapper, else it |
1640 | will eventually call us -- thinking that we're trying to print | |
1641 | beyond the end of the screen. */ | |
c906108c SS |
1642 | reinitialize_more_filter (); |
1643 | ||
3eb7562a | 1644 | prepare_to_handle_input (); |
82584158 | 1645 | |
720d2e96 PA |
1646 | /* Call gdb_readline_wrapper, not readline, in order to keep an |
1647 | event loop running. */ | |
b4f5539f | 1648 | ignore = gdb_readline_wrapper (cont_prompt); |
80dbc9fd | 1649 | make_cleanup (xfree, ignore); |
c906108c | 1650 | |
260c0b2a | 1651 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
dcb07cfa | 1652 | prompt_for_continue_wait_time += steady_clock::now () - prompt_started; |
260c0b2a | 1653 | |
c906108c | 1654 | if (annotation_level > 1) |
a3f17187 | 1655 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c | 1656 | |
80dbc9fd | 1657 | if (ignore != NULL) |
c906108c SS |
1658 | { |
1659 | char *p = ignore; | |
5d502164 | 1660 | |
c906108c SS |
1661 | while (*p == ' ' || *p == '\t') |
1662 | ++p; | |
1663 | if (p[0] == 'q') | |
1690b616 SL |
1664 | /* Do not call quit here; there is no possibility of SIGINT. */ |
1665 | throw_quit ("Quit"); | |
c906108c | 1666 | } |
c906108c SS |
1667 | |
1668 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1669 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1670 | reinitialize_more_filter (); | |
1671 | ||
581e13c1 | 1672 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ |
80dbc9fd PA |
1673 | |
1674 | do_cleanups (old_chain); | |
c906108c SS |
1675 | } |
1676 | ||
26c4b26f | 1677 | /* Initialize timer to keep track of how long we waited for the user. */ |
bd712aed DE |
1678 | |
1679 | void | |
1680 | reset_prompt_for_continue_wait_time (void) | |
1681 | { | |
dcb07cfa | 1682 | using namespace std::chrono; |
bd712aed | 1683 | |
dcb07cfa | 1684 | prompt_for_continue_wait_time = steady_clock::duration::zero (); |
bd712aed DE |
1685 | } |
1686 | ||
1687 | /* Fetch the cumulative time spent in prompt_for_continue. */ | |
1688 | ||
dcb07cfa PA |
1689 | std::chrono::steady_clock::duration |
1690 | get_prompt_for_continue_wait_time () | |
bd712aed DE |
1691 | { |
1692 | return prompt_for_continue_wait_time; | |
1693 | } | |
1694 | ||
c906108c SS |
1695 | /* Reinitialize filter; ie. tell it to reset to original values. */ |
1696 | ||
1697 | void | |
fba45db2 | 1698 | reinitialize_more_filter (void) |
c906108c SS |
1699 | { |
1700 | lines_printed = 0; | |
1701 | chars_printed = 0; | |
1702 | } | |
1703 | ||
1704 | /* Indicate that if the next sequence of characters overflows the line, | |
581e13c1 | 1705 | a newline should be inserted here rather than when it hits the end. |
c906108c SS |
1706 | If INDENT is non-null, it is a string to be printed to indent the |
1707 | wrapped part on the next line. INDENT must remain accessible until | |
1708 | the next call to wrap_here() or until a newline is printed through | |
1709 | fputs_filtered(). | |
1710 | ||
1711 | If the line is already overfull, we immediately print a newline and | |
1712 | the indentation, and disable further wrapping. | |
1713 | ||
1714 | If we don't know the width of lines, but we know the page height, | |
1715 | we must not wrap words, but should still keep track of newlines | |
1716 | that were explicitly printed. | |
1717 | ||
1718 | INDENT should not contain tabs, as that will mess up the char count | |
1719 | on the next line. FIXME. | |
1720 | ||
1721 | This routine is guaranteed to force out any output which has been | |
1722 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1723 | used to force out output from the wrap_buffer. */ | |
1724 | ||
1725 | void | |
d2c0eef4 | 1726 | wrap_here (const char *indent) |
c906108c | 1727 | { |
581e13c1 | 1728 | /* This should have been allocated, but be paranoid anyway. */ |
c906108c | 1729 | if (!wrap_buffer) |
3e43a32a MS |
1730 | internal_error (__FILE__, __LINE__, |
1731 | _("failed internal consistency check")); | |
c906108c SS |
1732 | |
1733 | if (wrap_buffer[0]) | |
1734 | { | |
1735 | *wrap_pointer = '\0'; | |
1736 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1737 | } | |
1738 | wrap_pointer = wrap_buffer; | |
1739 | wrap_buffer[0] = '\0'; | |
3e43a32a | 1740 | if (chars_per_line == UINT_MAX) /* No line overflow checking. */ |
c906108c SS |
1741 | { |
1742 | wrap_column = 0; | |
1743 | } | |
1744 | else if (chars_printed >= chars_per_line) | |
1745 | { | |
1746 | puts_filtered ("\n"); | |
1747 | if (indent != NULL) | |
1748 | puts_filtered (indent); | |
1749 | wrap_column = 0; | |
1750 | } | |
1751 | else | |
1752 | { | |
1753 | wrap_column = chars_printed; | |
1754 | if (indent == NULL) | |
1755 | wrap_indent = ""; | |
1756 | else | |
1757 | wrap_indent = indent; | |
1758 | } | |
1759 | } | |
1760 | ||
4a351cef | 1761 | /* Print input string to gdb_stdout, filtered, with wrap, |
581e13c1 | 1762 | arranging strings in columns of n chars. String can be |
4a351cef AF |
1763 | right or left justified in the column. Never prints |
1764 | trailing spaces. String should never be longer than | |
1765 | width. FIXME: this could be useful for the EXAMINE | |
581e13c1 | 1766 | command, which currently doesn't tabulate very well. */ |
4a351cef AF |
1767 | |
1768 | void | |
1769 | puts_filtered_tabular (char *string, int width, int right) | |
1770 | { | |
1771 | int spaces = 0; | |
1772 | int stringlen; | |
1773 | char *spacebuf; | |
1774 | ||
1775 | gdb_assert (chars_per_line > 0); | |
1776 | if (chars_per_line == UINT_MAX) | |
1777 | { | |
1778 | fputs_filtered (string, gdb_stdout); | |
1779 | fputs_filtered ("\n", gdb_stdout); | |
1780 | return; | |
1781 | } | |
1782 | ||
1783 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
1784 | fputs_filtered ("\n", gdb_stdout); | |
1785 | ||
1786 | if (width >= chars_per_line) | |
1787 | width = chars_per_line - 1; | |
1788 | ||
1789 | stringlen = strlen (string); | |
1790 | ||
1791 | if (chars_printed > 0) | |
1792 | spaces = width - (chars_printed - 1) % width - 1; | |
1793 | if (right) | |
1794 | spaces += width - stringlen; | |
1795 | ||
224c3ddb | 1796 | spacebuf = (char *) alloca (spaces + 1); |
4a351cef AF |
1797 | spacebuf[spaces] = '\0'; |
1798 | while (spaces--) | |
1799 | spacebuf[spaces] = ' '; | |
1800 | ||
1801 | fputs_filtered (spacebuf, gdb_stdout); | |
1802 | fputs_filtered (string, gdb_stdout); | |
1803 | } | |
1804 | ||
1805 | ||
c906108c | 1806 | /* Ensure that whatever gets printed next, using the filtered output |
581e13c1 | 1807 | commands, starts at the beginning of the line. I.e. if there is |
c906108c | 1808 | any pending output for the current line, flush it and start a new |
581e13c1 | 1809 | line. Otherwise do nothing. */ |
c906108c SS |
1810 | |
1811 | void | |
fba45db2 | 1812 | begin_line (void) |
c906108c SS |
1813 | { |
1814 | if (chars_printed > 0) | |
1815 | { | |
1816 | puts_filtered ("\n"); | |
1817 | } | |
1818 | } | |
1819 | ||
ac9a91a7 | 1820 | |
c906108c SS |
1821 | /* Like fputs but if FILTER is true, pause after every screenful. |
1822 | ||
1823 | Regardless of FILTER can wrap at points other than the final | |
1824 | character of a line. | |
1825 | ||
1826 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
1827 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
1828 | anything. | |
1829 | ||
1830 | Note that a longjmp to top level may occur in this routine (only if | |
1831 | FILTER is true) (since prompt_for_continue may do so) so this | |
1832 | routine should not be called when cleanups are not in place. */ | |
1833 | ||
1834 | static void | |
fba45db2 KB |
1835 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
1836 | int filter) | |
c906108c SS |
1837 | { |
1838 | const char *lineptr; | |
1839 | ||
1840 | if (linebuffer == 0) | |
1841 | return; | |
1842 | ||
1843 | /* Don't do any filtering if it is disabled. */ | |
390a8aca | 1844 | if (stream != gdb_stdout |
b2e7f004 JK |
1845 | || !pagination_enabled |
1846 | || batch_flag | |
390a8aca | 1847 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) |
58dadb1b | 1848 | || top_level_interpreter () == NULL |
112e8700 | 1849 | || interp_ui_out (top_level_interpreter ())->is_mi_like_p ()) |
c906108c SS |
1850 | { |
1851 | fputs_unfiltered (linebuffer, stream); | |
1852 | return; | |
1853 | } | |
1854 | ||
1855 | /* Go through and output each character. Show line extension | |
1856 | when this is necessary; prompt user for new page when this is | |
1857 | necessary. */ | |
c5aa993b | 1858 | |
c906108c SS |
1859 | lineptr = linebuffer; |
1860 | while (*lineptr) | |
1861 | { | |
1862 | /* Possible new page. */ | |
8731e58e | 1863 | if (filter && (lines_printed >= lines_per_page - 1)) |
c906108c SS |
1864 | prompt_for_continue (); |
1865 | ||
1866 | while (*lineptr && *lineptr != '\n') | |
1867 | { | |
1868 | /* Print a single line. */ | |
1869 | if (*lineptr == '\t') | |
1870 | { | |
1871 | if (wrap_column) | |
1872 | *wrap_pointer++ = '\t'; | |
1873 | else | |
1874 | fputc_unfiltered ('\t', stream); | |
1875 | /* Shifting right by 3 produces the number of tab stops | |
1876 | we have already passed, and then adding one and | |
c5aa993b | 1877 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
1878 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
1879 | lineptr++; | |
1880 | } | |
1881 | else | |
1882 | { | |
1883 | if (wrap_column) | |
1884 | *wrap_pointer++ = *lineptr; | |
1885 | else | |
c5aa993b | 1886 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
1887 | chars_printed++; |
1888 | lineptr++; | |
1889 | } | |
c5aa993b | 1890 | |
c906108c SS |
1891 | if (chars_printed >= chars_per_line) |
1892 | { | |
1893 | unsigned int save_chars = chars_printed; | |
1894 | ||
1895 | chars_printed = 0; | |
1896 | lines_printed++; | |
1897 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
1898 | if chars_per_line is right, we probably just overflowed |
1899 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
1900 | if (wrap_column) |
1901 | fputc_unfiltered ('\n', stream); | |
1902 | ||
1903 | /* Possible new page. */ | |
1904 | if (lines_printed >= lines_per_page - 1) | |
1905 | prompt_for_continue (); | |
1906 | ||
581e13c1 | 1907 | /* Now output indentation and wrapped string. */ |
c906108c SS |
1908 | if (wrap_column) |
1909 | { | |
1910 | fputs_unfiltered (wrap_indent, stream); | |
581e13c1 MS |
1911 | *wrap_pointer = '\0'; /* Null-terminate saved stuff, */ |
1912 | fputs_unfiltered (wrap_buffer, stream); /* and eject it. */ | |
c906108c SS |
1913 | /* FIXME, this strlen is what prevents wrap_indent from |
1914 | containing tabs. However, if we recurse to print it | |
1915 | and count its chars, we risk trouble if wrap_indent is | |
581e13c1 | 1916 | longer than (the user settable) chars_per_line. |
c906108c SS |
1917 | Note also that this can set chars_printed > chars_per_line |
1918 | if we are printing a long string. */ | |
1919 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 1920 | + (save_chars - wrap_column); |
c906108c SS |
1921 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
1922 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
1923 | wrap_column = 0; /* And disable fancy wrap */ |
1924 | } | |
c906108c SS |
1925 | } |
1926 | } | |
1927 | ||
1928 | if (*lineptr == '\n') | |
1929 | { | |
1930 | chars_printed = 0; | |
3e43a32a MS |
1931 | wrap_here ((char *) 0); /* Spit out chars, cancel |
1932 | further wraps. */ | |
c906108c SS |
1933 | lines_printed++; |
1934 | fputc_unfiltered ('\n', stream); | |
1935 | lineptr++; | |
1936 | } | |
1937 | } | |
1938 | } | |
1939 | ||
1940 | void | |
fba45db2 | 1941 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
1942 | { |
1943 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1944 | } | |
1945 | ||
1946 | int | |
fba45db2 | 1947 | putchar_unfiltered (int c) |
c906108c | 1948 | { |
11cf8741 | 1949 | char buf = c; |
e0627e85 | 1950 | |
d9fcf2fb | 1951 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
1952 | return c; |
1953 | } | |
1954 | ||
d1f4cff8 AC |
1955 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
1956 | May return nonlocally. */ | |
1957 | ||
1958 | int | |
1959 | putchar_filtered (int c) | |
1960 | { | |
1961 | return fputc_filtered (c, gdb_stdout); | |
1962 | } | |
1963 | ||
c906108c | 1964 | int |
fba45db2 | 1965 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 1966 | { |
11cf8741 | 1967 | char buf = c; |
e0627e85 | 1968 | |
d9fcf2fb | 1969 | ui_file_write (stream, &buf, 1); |
c906108c SS |
1970 | return c; |
1971 | } | |
1972 | ||
1973 | int | |
fba45db2 | 1974 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
1975 | { |
1976 | char buf[2]; | |
1977 | ||
1978 | buf[0] = c; | |
1979 | buf[1] = 0; | |
1980 | fputs_filtered (buf, stream); | |
1981 | return c; | |
1982 | } | |
1983 | ||
1984 | /* puts_debug is like fputs_unfiltered, except it prints special | |
1985 | characters in printable fashion. */ | |
1986 | ||
1987 | void | |
fba45db2 | 1988 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
1989 | { |
1990 | int ch; | |
1991 | ||
1992 | /* Print prefix and suffix after each line. */ | |
1993 | static int new_line = 1; | |
1994 | static int return_p = 0; | |
a121b7c1 PA |
1995 | static const char *prev_prefix = ""; |
1996 | static const char *prev_suffix = ""; | |
c906108c SS |
1997 | |
1998 | if (*string == '\n') | |
1999 | return_p = 0; | |
2000 | ||
2001 | /* If the prefix is changing, print the previous suffix, a new line, | |
2002 | and the new prefix. */ | |
c5aa993b | 2003 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2004 | { |
9846de1b JM |
2005 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2006 | fputs_unfiltered ("\n", gdb_stdlog); | |
2007 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2008 | } |
2009 | ||
2010 | /* Print prefix if we printed a newline during the previous call. */ | |
2011 | if (new_line) | |
2012 | { | |
2013 | new_line = 0; | |
9846de1b | 2014 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2015 | } |
2016 | ||
2017 | prev_prefix = prefix; | |
2018 | prev_suffix = suffix; | |
2019 | ||
2020 | /* Output characters in a printable format. */ | |
2021 | while ((ch = *string++) != '\0') | |
2022 | { | |
2023 | switch (ch) | |
c5aa993b | 2024 | { |
c906108c SS |
2025 | default: |
2026 | if (isprint (ch)) | |
9846de1b | 2027 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2028 | |
2029 | else | |
9846de1b | 2030 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2031 | break; |
2032 | ||
c5aa993b JM |
2033 | case '\\': |
2034 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2035 | break; | |
2036 | case '\b': | |
2037 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2038 | break; | |
2039 | case '\f': | |
2040 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2041 | break; | |
2042 | case '\n': | |
2043 | new_line = 1; | |
2044 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2045 | break; | |
2046 | case '\r': | |
2047 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2048 | break; | |
2049 | case '\t': | |
2050 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2051 | break; | |
2052 | case '\v': | |
2053 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2054 | break; | |
2055 | } | |
c906108c SS |
2056 | |
2057 | return_p = ch == '\r'; | |
2058 | } | |
2059 | ||
2060 | /* Print suffix if we printed a newline. */ | |
2061 | if (new_line) | |
2062 | { | |
9846de1b JM |
2063 | fputs_unfiltered (suffix, gdb_stdlog); |
2064 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2065 | } |
2066 | } | |
2067 | ||
2068 | ||
2069 | /* Print a variable number of ARGS using format FORMAT. If this | |
2070 | information is going to put the amount written (since the last call | |
2071 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2072 | call prompt_for_continue to get the users permision to continue. | |
2073 | ||
2074 | Unlike fprintf, this function does not return a value. | |
2075 | ||
2076 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2077 | fprintf (takes a stream to write on), and printf (the usual). | |
2078 | ||
2079 | Note also that a longjmp to top level may occur in this routine | |
2080 | (since prompt_for_continue may do so) so this routine should not be | |
2081 | called when cleanups are not in place. */ | |
2082 | ||
2083 | static void | |
fba45db2 KB |
2084 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2085 | va_list args, int filter) | |
c906108c SS |
2086 | { |
2087 | char *linebuffer; | |
2088 | struct cleanup *old_cleanups; | |
2089 | ||
e623b504 | 2090 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2091 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2092 | fputs_maybe_filtered (linebuffer, stream, filter); |
2093 | do_cleanups (old_cleanups); | |
2094 | } | |
2095 | ||
2096 | ||
2097 | void | |
fba45db2 | 2098 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2099 | { |
2100 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2101 | } | |
2102 | ||
2103 | void | |
fba45db2 | 2104 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2105 | { |
2106 | char *linebuffer; | |
2107 | struct cleanup *old_cleanups; | |
2108 | ||
e623b504 | 2109 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2110 | old_cleanups = make_cleanup (xfree, linebuffer); |
75feb17d DJ |
2111 | if (debug_timestamp && stream == gdb_stdlog) |
2112 | { | |
dcb07cfa | 2113 | using namespace std::chrono; |
6e5abd65 | 2114 | int len, need_nl; |
75feb17d | 2115 | |
dcb07cfa PA |
2116 | steady_clock::time_point now = steady_clock::now (); |
2117 | seconds s = duration_cast<seconds> (now.time_since_epoch ()); | |
2118 | microseconds us = duration_cast<microseconds> (now.time_since_epoch () - s); | |
6e5abd65 PA |
2119 | |
2120 | len = strlen (linebuffer); | |
2121 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); | |
2122 | ||
dcb07cfa PA |
2123 | std::string timestamp = string_printf ("%ld.%06ld %s%s", |
2124 | (long) s.count (), | |
2125 | (long) us.count (), | |
2126 | linebuffer, need_nl ? "\n": ""); | |
2127 | fputs_unfiltered (timestamp.c_str (), stream); | |
75feb17d | 2128 | } |
6e5abd65 PA |
2129 | else |
2130 | fputs_unfiltered (linebuffer, stream); | |
c906108c SS |
2131 | do_cleanups (old_cleanups); |
2132 | } | |
2133 | ||
2134 | void | |
fba45db2 | 2135 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2136 | { |
2137 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2138 | } | |
2139 | ||
2140 | void | |
fba45db2 | 2141 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2142 | { |
2143 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2144 | } | |
2145 | ||
c906108c | 2146 | void |
8731e58e | 2147 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2148 | { |
2149 | va_list args; | |
e0627e85 | 2150 | |
c906108c | 2151 | va_start (args, format); |
c906108c SS |
2152 | vfprintf_filtered (stream, format, args); |
2153 | va_end (args); | |
2154 | } | |
2155 | ||
c906108c | 2156 | void |
8731e58e | 2157 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2158 | { |
2159 | va_list args; | |
e0627e85 | 2160 | |
c906108c | 2161 | va_start (args, format); |
c906108c SS |
2162 | vfprintf_unfiltered (stream, format, args); |
2163 | va_end (args); | |
2164 | } | |
2165 | ||
2166 | /* Like fprintf_filtered, but prints its result indented. | |
2167 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2168 | ||
c906108c | 2169 | void |
8731e58e AC |
2170 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2171 | ...) | |
c906108c SS |
2172 | { |
2173 | va_list args; | |
e0627e85 | 2174 | |
c906108c | 2175 | va_start (args, format); |
c906108c SS |
2176 | print_spaces_filtered (spaces, stream); |
2177 | ||
2178 | vfprintf_filtered (stream, format, args); | |
2179 | va_end (args); | |
2180 | } | |
2181 | ||
2182 | ||
c906108c | 2183 | void |
8731e58e | 2184 | printf_filtered (const char *format, ...) |
c906108c SS |
2185 | { |
2186 | va_list args; | |
e0627e85 | 2187 | |
c906108c | 2188 | va_start (args, format); |
c906108c SS |
2189 | vfprintf_filtered (gdb_stdout, format, args); |
2190 | va_end (args); | |
2191 | } | |
2192 | ||
2193 | ||
c906108c | 2194 | void |
8731e58e | 2195 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2196 | { |
2197 | va_list args; | |
e0627e85 | 2198 | |
c906108c | 2199 | va_start (args, format); |
c906108c SS |
2200 | vfprintf_unfiltered (gdb_stdout, format, args); |
2201 | va_end (args); | |
2202 | } | |
2203 | ||
2204 | /* Like printf_filtered, but prints it's result indented. | |
2205 | Called as printfi_filtered (spaces, format, ...); */ | |
2206 | ||
c906108c | 2207 | void |
8731e58e | 2208 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2209 | { |
2210 | va_list args; | |
e0627e85 | 2211 | |
c906108c | 2212 | va_start (args, format); |
c906108c SS |
2213 | print_spaces_filtered (spaces, gdb_stdout); |
2214 | vfprintf_filtered (gdb_stdout, format, args); | |
2215 | va_end (args); | |
2216 | } | |
2217 | ||
2218 | /* Easy -- but watch out! | |
2219 | ||
2220 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2221 | This one doesn't, and had better not! */ | |
2222 | ||
2223 | void | |
fba45db2 | 2224 | puts_filtered (const char *string) |
c906108c SS |
2225 | { |
2226 | fputs_filtered (string, gdb_stdout); | |
2227 | } | |
2228 | ||
2229 | void | |
fba45db2 | 2230 | puts_unfiltered (const char *string) |
c906108c SS |
2231 | { |
2232 | fputs_unfiltered (string, gdb_stdout); | |
2233 | } | |
2234 | ||
2235 | /* Return a pointer to N spaces and a null. The pointer is good | |
2236 | until the next call to here. */ | |
2237 | char * | |
fba45db2 | 2238 | n_spaces (int n) |
c906108c | 2239 | { |
392a587b JM |
2240 | char *t; |
2241 | static char *spaces = 0; | |
2242 | static int max_spaces = -1; | |
c906108c SS |
2243 | |
2244 | if (n > max_spaces) | |
2245 | { | |
2246 | if (spaces) | |
b8c9b27d | 2247 | xfree (spaces); |
c5aa993b JM |
2248 | spaces = (char *) xmalloc (n + 1); |
2249 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2250 | *--t = ' '; |
2251 | spaces[n] = '\0'; | |
2252 | max_spaces = n; | |
2253 | } | |
2254 | ||
2255 | return spaces + max_spaces - n; | |
2256 | } | |
2257 | ||
2258 | /* Print N spaces. */ | |
2259 | void | |
fba45db2 | 2260 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2261 | { |
2262 | fputs_filtered (n_spaces (n), stream); | |
2263 | } | |
2264 | \f | |
4a351cef | 2265 | /* C++/ObjC demangler stuff. */ |
c906108c | 2266 | |
389e51db AC |
2267 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2268 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2269 | If the name is not mangled, or the language for the name is unknown, or | |
581e13c1 | 2270 | demangling is off, the name is printed in its "raw" form. */ |
c906108c SS |
2271 | |
2272 | void | |
0d5cff50 | 2273 | fprintf_symbol_filtered (struct ui_file *stream, const char *name, |
8731e58e | 2274 | enum language lang, int arg_mode) |
c906108c SS |
2275 | { |
2276 | char *demangled; | |
2277 | ||
2278 | if (name != NULL) | |
2279 | { | |
2280 | /* If user wants to see raw output, no problem. */ | |
2281 | if (!demangle) | |
2282 | { | |
2283 | fputs_filtered (name, stream); | |
2284 | } | |
2285 | else | |
2286 | { | |
9a3d7dfd | 2287 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2288 | fputs_filtered (demangled ? demangled : name, stream); |
2289 | if (demangled != NULL) | |
2290 | { | |
b8c9b27d | 2291 | xfree (demangled); |
c906108c SS |
2292 | } |
2293 | } | |
2294 | } | |
2295 | } | |
2296 | ||
1d550c82 | 2297 | /* Modes of operation for strncmp_iw_with_mode. */ |
c5aa993b | 2298 | |
1d550c82 PA |
2299 | enum class strncmp_iw_mode |
2300 | { | |
2301 | /* Work like strncmp, while ignoring whitespace. */ | |
2302 | NORMAL, | |
c906108c | 2303 | |
1d550c82 PA |
2304 | /* Like NORMAL, but also apply the strcmp_iw hack. I.e., |
2305 | string1=="FOO(PARAMS)" matches string2=="FOO". */ | |
2306 | MATCH_PARAMS, | |
2307 | }; | |
2308 | ||
2309 | /* Helper for strncmp_iw and strcmp_iw. */ | |
2310 | ||
2311 | static int | |
2312 | strncmp_iw_with_mode (const char *string1, const char *string2, | |
2313 | size_t string2_len, strncmp_iw_mode mode) | |
c906108c | 2314 | { |
1d550c82 PA |
2315 | const char *end_str2 = string2 + string2_len; |
2316 | ||
2317 | while (1) | |
c906108c SS |
2318 | { |
2319 | while (isspace (*string1)) | |
1d550c82 PA |
2320 | string1++; |
2321 | while (string2 < end_str2 && isspace (*string2)) | |
2322 | string2++; | |
2323 | if (*string1 == '\0' || string2 == end_str2) | |
2324 | break; | |
559a7a62 JK |
2325 | if (case_sensitivity == case_sensitive_on && *string1 != *string2) |
2326 | break; | |
2327 | if (case_sensitivity == case_sensitive_off | |
2328 | && (tolower ((unsigned char) *string1) | |
2329 | != tolower ((unsigned char) *string2))) | |
2330 | break; | |
1d550c82 PA |
2331 | |
2332 | string1++; | |
2333 | string2++; | |
c906108c | 2334 | } |
1d550c82 PA |
2335 | |
2336 | if (string2 == end_str2) | |
2337 | { | |
2338 | if (mode == strncmp_iw_mode::NORMAL) | |
2339 | return 0; | |
2340 | else | |
2341 | return (*string1 != '\0' && *string1 != '('); | |
2342 | } | |
2343 | else | |
2344 | return 1; | |
2345 | } | |
2346 | ||
2347 | /* See utils.h. */ | |
2348 | ||
2349 | int | |
2350 | strncmp_iw (const char *string1, const char *string2, size_t string2_len) | |
2351 | { | |
2352 | return strncmp_iw_with_mode (string1, string2, string2_len, | |
2353 | strncmp_iw_mode::NORMAL); | |
2354 | } | |
2355 | ||
2356 | /* See utils.h. */ | |
2357 | ||
2358 | int | |
2359 | strcmp_iw (const char *string1, const char *string2) | |
2360 | { | |
2361 | return strncmp_iw_with_mode (string1, string2, strlen (string2), | |
2362 | strncmp_iw_mode::MATCH_PARAMS); | |
c906108c | 2363 | } |
2de7ced7 | 2364 | |
0fe19209 DC |
2365 | /* This is like strcmp except that it ignores whitespace and treats |
2366 | '(' as the first non-NULL character in terms of ordering. Like | |
2367 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2368 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2369 | according to that ordering. | |
2370 | ||
2371 | If a list is sorted according to this function and if you want to | |
2372 | find names in the list that match some fixed NAME according to | |
2373 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2374 | where this function would put NAME. | |
2375 | ||
559a7a62 JK |
2376 | This function must be neutral to the CASE_SENSITIVITY setting as the user |
2377 | may choose it during later lookup. Therefore this function always sorts | |
2378 | primarily case-insensitively and secondarily case-sensitively. | |
2379 | ||
0fe19209 DC |
2380 | Here are some examples of why using strcmp to sort is a bad idea: |
2381 | ||
2382 | Whitespace example: | |
2383 | ||
2384 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2385 | we try to do a search for "foo<char*>", strcmp will locate this | |
2386 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2387 | will start looking at strings beginning with "goo", and will never | |
2388 | see the correct match of "foo<char *>". | |
2389 | ||
2390 | Parenthesis example: | |
2391 | ||
2392 | In practice, this is less like to be an issue, but I'll give it a | |
2393 | shot. Let's assume that '$' is a legitimate character to occur in | |
2394 | symbols. (Which may well even be the case on some systems.) Then | |
2395 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2396 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2397 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2398 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2399 | "foo") is false, so it won't proceed to the actual match of | |
2400 | "foo(int)" with "foo". */ | |
2401 | ||
2402 | int | |
2403 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2404 | { | |
559a7a62 JK |
2405 | const char *saved_string1 = string1, *saved_string2 = string2; |
2406 | enum case_sensitivity case_pass = case_sensitive_off; | |
2407 | ||
2408 | for (;;) | |
0fe19209 | 2409 | { |
b11b1f88 JK |
2410 | /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'. |
2411 | Provide stub characters if we are already at the end of one of the | |
2412 | strings. */ | |
2413 | char c1 = 'X', c2 = 'X'; | |
2414 | ||
2415 | while (*string1 != '\0' && *string2 != '\0') | |
0fe19209 | 2416 | { |
b11b1f88 JK |
2417 | while (isspace (*string1)) |
2418 | string1++; | |
2419 | while (isspace (*string2)) | |
2420 | string2++; | |
2421 | ||
559a7a62 JK |
2422 | switch (case_pass) |
2423 | { | |
2424 | case case_sensitive_off: | |
2425 | c1 = tolower ((unsigned char) *string1); | |
2426 | c2 = tolower ((unsigned char) *string2); | |
2427 | break; | |
2428 | case case_sensitive_on: | |
b11b1f88 JK |
2429 | c1 = *string1; |
2430 | c2 = *string2; | |
559a7a62 JK |
2431 | break; |
2432 | } | |
b11b1f88 JK |
2433 | if (c1 != c2) |
2434 | break; | |
2435 | ||
2436 | if (*string1 != '\0') | |
2437 | { | |
2438 | string1++; | |
2439 | string2++; | |
2440 | } | |
0fe19209 | 2441 | } |
b11b1f88 JK |
2442 | |
2443 | switch (*string1) | |
0fe19209 | 2444 | { |
b11b1f88 JK |
2445 | /* Characters are non-equal unless they're both '\0'; we want to |
2446 | make sure we get the comparison right according to our | |
2447 | comparison in the cases where one of them is '\0' or '('. */ | |
2448 | case '\0': | |
2449 | if (*string2 == '\0') | |
559a7a62 | 2450 | break; |
b11b1f88 JK |
2451 | else |
2452 | return -1; | |
2453 | case '(': | |
2454 | if (*string2 == '\0') | |
2455 | return 1; | |
2456 | else | |
2457 | return -1; | |
2458 | default: | |
2459 | if (*string2 == '\0' || *string2 == '(') | |
2460 | return 1; | |
559a7a62 JK |
2461 | else if (c1 > c2) |
2462 | return 1; | |
2463 | else if (c1 < c2) | |
2464 | return -1; | |
2465 | /* PASSTHRU */ | |
0fe19209 | 2466 | } |
559a7a62 JK |
2467 | |
2468 | if (case_pass == case_sensitive_on) | |
2469 | return 0; | |
2470 | ||
2471 | /* Otherwise the strings were equal in case insensitive way, make | |
2472 | a more fine grained comparison in a case sensitive way. */ | |
2473 | ||
2474 | case_pass = case_sensitive_on; | |
2475 | string1 = saved_string1; | |
2476 | string2 = saved_string2; | |
0fe19209 | 2477 | } |
0fe19209 DC |
2478 | } |
2479 | ||
2de7ced7 DJ |
2480 | /* A simple comparison function with opposite semantics to strcmp. */ |
2481 | ||
2482 | int | |
2483 | streq (const char *lhs, const char *rhs) | |
2484 | { | |
2485 | return !strcmp (lhs, rhs); | |
2486 | } | |
c906108c | 2487 | \f |
c5aa993b | 2488 | |
c906108c | 2489 | /* |
c5aa993b JM |
2490 | ** subset_compare() |
2491 | ** Answer whether string_to_compare is a full or partial match to | |
2492 | ** template_string. The partial match must be in sequence starting | |
2493 | ** at index 0. | |
2494 | */ | |
c906108c | 2495 | int |
a121b7c1 | 2496 | subset_compare (const char *string_to_compare, const char *template_string) |
7a292a7a SS |
2497 | { |
2498 | int match; | |
e0627e85 | 2499 | |
8731e58e AC |
2500 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
2501 | && strlen (string_to_compare) <= strlen (template_string)) | |
2502 | match = | |
61012eef | 2503 | (startswith (template_string, string_to_compare)); |
7a292a7a SS |
2504 | else |
2505 | match = 0; | |
2506 | return match; | |
2507 | } | |
c906108c | 2508 | |
75feb17d DJ |
2509 | static void |
2510 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
2511 | struct cmd_list_element *c, const char *value) | |
2512 | { | |
3e43a32a MS |
2513 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), |
2514 | value); | |
75feb17d | 2515 | } |
c906108c | 2516 | \f |
c5aa993b | 2517 | |
c906108c | 2518 | void |
fba45db2 | 2519 | initialize_utils (void) |
c906108c | 2520 | { |
35096d9d | 2521 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
77dec115 EZ |
2522 | Set number of characters where GDB should wrap lines of its output."), _("\ |
2523 | Show number of characters where GDB should wrap lines of its output."), _("\ | |
2524 | This affects where GDB wraps its output to fit the screen width.\n\ | |
f81d1120 | 2525 | Setting this to \"unlimited\" or zero prevents GDB from wrapping its output."), |
35096d9d | 2526 | set_width_command, |
920d2a44 | 2527 | show_chars_per_line, |
35096d9d AC |
2528 | &setlist, &showlist); |
2529 | ||
2530 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
77dec115 EZ |
2531 | Set number of lines in a page for GDB output pagination."), _("\ |
2532 | Show number of lines in a page for GDB output pagination."), _("\ | |
2533 | This affects the number of lines after which GDB will pause\n\ | |
2534 | its output and ask you whether to continue.\n\ | |
f81d1120 | 2535 | Setting this to \"unlimited\" or zero causes GDB never pause during output."), |
35096d9d | 2536 | set_height_command, |
920d2a44 | 2537 | show_lines_per_page, |
35096d9d | 2538 | &setlist, &showlist); |
c5aa993b | 2539 | |
5bf193a2 AC |
2540 | add_setshow_boolean_cmd ("pagination", class_support, |
2541 | &pagination_enabled, _("\ | |
77dec115 EZ |
2542 | Set state of GDB output pagination."), _("\ |
2543 | Show state of GDB output pagination."), _("\ | |
2544 | When pagination is ON, GDB pauses at end of each screenful of\n\ | |
2545 | its output and asks you whether to continue.\n\ | |
f81d1120 | 2546 | Turning pagination off is an alternative to \"set height unlimited\"."), |
5bf193a2 | 2547 | NULL, |
920d2a44 | 2548 | show_pagination_enabled, |
5bf193a2 | 2549 | &setlist, &showlist); |
4261bedc | 2550 | |
5bf193a2 AC |
2551 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, |
2552 | &sevenbit_strings, _("\ | |
2553 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
2554 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
2555 | NULL, | |
920d2a44 | 2556 | show_sevenbit_strings, |
5bf193a2 AC |
2557 | &setprintlist, &showprintlist); |
2558 | ||
75feb17d DJ |
2559 | add_setshow_boolean_cmd ("timestamp", class_maintenance, |
2560 | &debug_timestamp, _("\ | |
2561 | Set timestamping of debugging messages."), _("\ | |
2562 | Show timestamping of debugging messages."), _("\ | |
2563 | When set, debugging messages will be marked with seconds and microseconds."), | |
2564 | NULL, | |
2565 | show_debug_timestamp, | |
2566 | &setdebuglist, &showdebuglist); | |
c906108c SS |
2567 | } |
2568 | ||
66bf4b3a | 2569 | const char * |
5af949e3 | 2570 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
2571 | { |
2572 | /* Truncate address to the size of a target address, avoiding shifts | |
2573 | larger or equal than the width of a CORE_ADDR. The local | |
2574 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
581e13c1 | 2575 | when it won't occur. */ |
66bf4b3a AC |
2576 | /* NOTE: This assumes that the significant address information is |
2577 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2578 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2579 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2580 | ||
5af949e3 | 2581 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
2582 | |
2583 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2584 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2585 | return hex_string (addr); | |
2586 | } | |
2587 | ||
f1310107 TJB |
2588 | /* This function is described in "defs.h". */ |
2589 | ||
2590 | const char * | |
2591 | print_core_address (struct gdbarch *gdbarch, CORE_ADDR address) | |
2592 | { | |
2593 | int addr_bit = gdbarch_addr_bit (gdbarch); | |
2594 | ||
2595 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2596 | address &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2597 | ||
2598 | /* FIXME: cagney/2002-05-03: Need local_address_string() function | |
2599 | that returns the language localized string formatted to a width | |
2600 | based on gdbarch_addr_bit. */ | |
2601 | if (addr_bit <= 32) | |
2602 | return hex_string_custom (address, 8); | |
2603 | else | |
2604 | return hex_string_custom (address, 16); | |
2605 | } | |
2606 | ||
8e3b41a9 JK |
2607 | /* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */ |
2608 | ||
2609 | hashval_t | |
2610 | core_addr_hash (const void *ap) | |
2611 | { | |
19ba03f4 | 2612 | const CORE_ADDR *addrp = (const CORE_ADDR *) ap; |
8e3b41a9 JK |
2613 | |
2614 | return *addrp; | |
2615 | } | |
2616 | ||
2617 | /* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */ | |
2618 | ||
2619 | int | |
2620 | core_addr_eq (const void *ap, const void *bp) | |
2621 | { | |
19ba03f4 SM |
2622 | const CORE_ADDR *addr_ap = (const CORE_ADDR *) ap; |
2623 | const CORE_ADDR *addr_bp = (const CORE_ADDR *) bp; | |
8e3b41a9 JK |
2624 | |
2625 | return *addr_ap == *addr_bp; | |
2626 | } | |
2627 | ||
03dd37c3 AC |
2628 | /* Convert a string back into a CORE_ADDR. */ |
2629 | CORE_ADDR | |
2630 | string_to_core_addr (const char *my_string) | |
2631 | { | |
2632 | CORE_ADDR addr = 0; | |
9544c605 | 2633 | |
03dd37c3 AC |
2634 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
2635 | { | |
ced572fe | 2636 | /* Assume that it is in hex. */ |
03dd37c3 | 2637 | int i; |
5d502164 | 2638 | |
03dd37c3 AC |
2639 | for (i = 2; my_string[i] != '\0'; i++) |
2640 | { | |
2641 | if (isdigit (my_string[i])) | |
2642 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 2643 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
2644 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
2645 | else | |
63f06803 | 2646 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
2647 | } |
2648 | } | |
2649 | else | |
2650 | { | |
2651 | /* Assume that it is in decimal. */ | |
2652 | int i; | |
5d502164 | 2653 | |
03dd37c3 AC |
2654 | for (i = 0; my_string[i] != '\0'; i++) |
2655 | { | |
2656 | if (isdigit (my_string[i])) | |
2657 | addr = (my_string[i] - '0') + (addr * 10); | |
2658 | else | |
63f06803 | 2659 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
2660 | } |
2661 | } | |
9544c605 | 2662 | |
03dd37c3 AC |
2663 | return addr; |
2664 | } | |
58d370e0 | 2665 | |
14278e1f | 2666 | gdb::unique_xmalloc_ptr<char> |
58d370e0 TT |
2667 | gdb_realpath (const char *filename) |
2668 | { | |
0fa9473f JB |
2669 | /* On most hosts, we rely on canonicalize_file_name to compute |
2670 | the FILENAME's realpath. | |
2671 | ||
2672 | But the situation is slightly more complex on Windows, due to some | |
2673 | versions of GCC which were reported to generate paths where | |
2674 | backlashes (the directory separator) were doubled. For instance: | |
2675 | c:\\some\\double\\slashes\\dir | |
2676 | ... instead of ... | |
2677 | c:\some\double\slashes\dir | |
2678 | Those double-slashes were getting in the way when comparing paths, | |
2679 | for instance when trying to insert a breakpoint as follow: | |
2680 | (gdb) b c:/some/double/slashes/dir/foo.c:4 | |
2681 | No source file named c:/some/double/slashes/dir/foo.c:4. | |
2682 | (gdb) b c:\some\double\slashes\dir\foo.c:4 | |
2683 | No source file named c:\some\double\slashes\dir\foo.c:4. | |
2684 | To prevent this from happening, we need this function to always | |
2685 | strip those extra backslashes. While canonicalize_file_name does | |
2686 | perform this simplification, it only works when the path is valid. | |
2687 | Since the simplification would be useful even if the path is not | |
2688 | valid (one can always set a breakpoint on a file, even if the file | |
2689 | does not exist locally), we rely instead on GetFullPathName to | |
2690 | perform the canonicalization. */ | |
2691 | ||
9c5e4386 JB |
2692 | #if defined (_WIN32) |
2693 | { | |
2694 | char buf[MAX_PATH]; | |
2695 | DWORD len = GetFullPathName (filename, MAX_PATH, buf, NULL); | |
2696 | ||
0fa9473f JB |
2697 | /* The file system is case-insensitive but case-preserving. |
2698 | So it is important we do not lowercase the path. Otherwise, | |
2699 | we might not be able to display the original casing in a given | |
2700 | path. */ | |
9c5e4386 | 2701 | if (len > 0 && len < MAX_PATH) |
14278e1f | 2702 | return gdb::unique_xmalloc_ptr<char> (xstrdup (buf)); |
9c5e4386 | 2703 | } |
abbffc89 YQ |
2704 | #else |
2705 | { | |
2706 | char *rp = canonicalize_file_name (filename); | |
2707 | ||
2708 | if (rp != NULL) | |
14278e1f | 2709 | return gdb::unique_xmalloc_ptr<char> (rp); |
abbffc89 | 2710 | } |
9c5e4386 JB |
2711 | #endif |
2712 | ||
70d35819 | 2713 | /* This system is a lost cause, just dup the buffer. */ |
14278e1f | 2714 | return gdb::unique_xmalloc_ptr<char> (xstrdup (filename)); |
58d370e0 | 2715 | } |
303c8ebd | 2716 | |
14278e1f TT |
2717 | #if GDB_SELF_TEST |
2718 | ||
2719 | static void | |
2720 | gdb_realpath_check_trailer (const char *input, const char *trailer) | |
2721 | { | |
2722 | gdb::unique_xmalloc_ptr<char> result = gdb_realpath (input); | |
2723 | ||
2724 | size_t len = strlen (result.get ()); | |
2725 | size_t trail_len = strlen (trailer); | |
2726 | ||
2727 | SELF_CHECK (len >= trail_len | |
2728 | && strcmp (result.get () + len - trail_len, trailer) == 0); | |
2729 | } | |
2730 | ||
2731 | static void | |
2732 | gdb_realpath_tests () | |
2733 | { | |
2734 | /* A file which contains a directory prefix. */ | |
2735 | gdb_realpath_check_trailer ("./xfullpath.exp", "/xfullpath.exp"); | |
2736 | /* A file which contains a directory prefix. */ | |
2737 | gdb_realpath_check_trailer ("../../defs.h", "/defs.h"); | |
2738 | /* A one-character filename. */ | |
2739 | gdb_realpath_check_trailer ("./a", "/a"); | |
2740 | /* A file in the root directory. */ | |
2741 | gdb_realpath_check_trailer ("/root_file_which_should_exist", | |
2742 | "/root_file_which_should_exist"); | |
2743 | /* A file which does not have a directory prefix. */ | |
2744 | gdb_realpath_check_trailer ("xfullpath.exp", "xfullpath.exp"); | |
2745 | /* A one-char filename without any directory prefix. */ | |
2746 | gdb_realpath_check_trailer ("a", "a"); | |
2747 | /* An empty filename. */ | |
2748 | gdb_realpath_check_trailer ("", ""); | |
2749 | } | |
2750 | ||
2751 | #endif /* GDB_SELF_TEST */ | |
2752 | ||
4856b6bc JK |
2753 | /* Return a copy of FILENAME, with its directory prefix canonicalized |
2754 | by gdb_realpath. */ | |
2755 | ||
4971c9a7 | 2756 | gdb::unique_xmalloc_ptr<char> |
4856b6bc JK |
2757 | gdb_realpath_keepfile (const char *filename) |
2758 | { | |
2759 | const char *base_name = lbasename (filename); | |
2760 | char *dir_name; | |
4856b6bc JK |
2761 | char *result; |
2762 | ||
2763 | /* Extract the basename of filename, and return immediately | |
2764 | a copy of filename if it does not contain any directory prefix. */ | |
2765 | if (base_name == filename) | |
4971c9a7 | 2766 | return gdb::unique_xmalloc_ptr<char> (xstrdup (filename)); |
4856b6bc | 2767 | |
224c3ddb | 2768 | dir_name = (char *) alloca ((size_t) (base_name - filename + 2)); |
4856b6bc JK |
2769 | /* Allocate enough space to store the dir_name + plus one extra |
2770 | character sometimes needed under Windows (see below), and | |
2771 | then the closing \000 character. */ | |
2772 | strncpy (dir_name, filename, base_name - filename); | |
2773 | dir_name[base_name - filename] = '\000'; | |
2774 | ||
2775 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
2776 | /* We need to be careful when filename is of the form 'd:foo', which | |
2777 | is equivalent of d:./foo, which is totally different from d:/foo. */ | |
2778 | if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':') | |
2779 | { | |
2780 | dir_name[2] = '.'; | |
2781 | dir_name[3] = '\000'; | |
2782 | } | |
2783 | #endif | |
2784 | ||
2785 | /* Canonicalize the directory prefix, and build the resulting | |
2786 | filename. If the dirname realpath already contains an ending | |
2787 | directory separator, avoid doubling it. */ | |
14278e1f TT |
2788 | gdb::unique_xmalloc_ptr<char> path_storage = gdb_realpath (dir_name); |
2789 | const char *real_path = path_storage.get (); | |
4856b6bc JK |
2790 | if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1])) |
2791 | result = concat (real_path, base_name, (char *) NULL); | |
2792 | else | |
2793 | result = concat (real_path, SLASH_STRING, base_name, (char *) NULL); | |
2794 | ||
4971c9a7 | 2795 | return gdb::unique_xmalloc_ptr<char> (result); |
4856b6bc JK |
2796 | } |
2797 | ||
04affae3 JK |
2798 | /* Return PATH in absolute form, performing tilde-expansion if necessary. |
2799 | PATH cannot be NULL or the empty string. | |
e3e41d58 | 2800 | This does not resolve symlinks however, use gdb_realpath for that. */ |
04affae3 | 2801 | |
e3e41d58 | 2802 | gdb::unique_xmalloc_ptr<char> |
04affae3 JK |
2803 | gdb_abspath (const char *path) |
2804 | { | |
2805 | gdb_assert (path != NULL && path[0] != '\0'); | |
2806 | ||
2807 | if (path[0] == '~') | |
e3e41d58 | 2808 | return gdb::unique_xmalloc_ptr<char> (tilde_expand (path)); |
04affae3 JK |
2809 | |
2810 | if (IS_ABSOLUTE_PATH (path)) | |
e3e41d58 | 2811 | return gdb::unique_xmalloc_ptr<char> (xstrdup (path)); |
04affae3 JK |
2812 | |
2813 | /* Beware the // my son, the Emacs barfs, the botch that catch... */ | |
e3e41d58 TT |
2814 | return gdb::unique_xmalloc_ptr<char> |
2815 | (concat (current_directory, | |
2816 | IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1]) | |
2817 | ? "" : SLASH_STRING, | |
2818 | path, (char *) NULL)); | |
04affae3 JK |
2819 | } |
2820 | ||
5b03f266 AC |
2821 | ULONGEST |
2822 | align_up (ULONGEST v, int n) | |
2823 | { | |
2824 | /* Check that N is really a power of two. */ | |
2825 | gdb_assert (n && (n & (n-1)) == 0); | |
2826 | return (v + n - 1) & -n; | |
2827 | } | |
2828 | ||
2829 | ULONGEST | |
2830 | align_down (ULONGEST v, int n) | |
2831 | { | |
2832 | /* Check that N is really a power of two. */ | |
2833 | gdb_assert (n && (n & (n-1)) == 0); | |
2834 | return (v & -n); | |
2835 | } | |
ae5a43e0 DJ |
2836 | |
2837 | /* Allocation function for the libiberty hash table which uses an | |
2838 | obstack. The obstack is passed as DATA. */ | |
2839 | ||
2840 | void * | |
2841 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
2842 | { | |
241fd515 | 2843 | size_t total = size * count; |
ae5a43e0 | 2844 | void *ptr = obstack_alloc ((struct obstack *) data, total); |
e0627e85 | 2845 | |
ae5a43e0 DJ |
2846 | memset (ptr, 0, total); |
2847 | return ptr; | |
2848 | } | |
2849 | ||
2850 | /* Trivial deallocation function for the libiberty splay tree and hash | |
2851 | table - don't deallocate anything. Rely on later deletion of the | |
2852 | obstack. DATA will be the obstack, although it is not needed | |
2853 | here. */ | |
2854 | ||
2855 | void | |
2856 | dummy_obstack_deallocate (void *object, void *data) | |
2857 | { | |
2858 | return; | |
2859 | } | |
253c8abb | 2860 | |
e1024ff1 DJ |
2861 | /* Simple, portable version of dirname that does not modify its |
2862 | argument. */ | |
2863 | ||
d721ba37 | 2864 | std::string |
e1024ff1 DJ |
2865 | ldirname (const char *filename) |
2866 | { | |
d721ba37 | 2867 | std::string dirname; |
e1024ff1 | 2868 | const char *base = lbasename (filename); |
e1024ff1 DJ |
2869 | |
2870 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
2871 | --base; | |
2872 | ||
2873 | if (base == filename) | |
d721ba37 | 2874 | return dirname; |
e1024ff1 | 2875 | |
d721ba37 | 2876 | dirname = std::string (filename, base - filename); |
e1024ff1 DJ |
2877 | |
2878 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
2879 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
2880 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
2881 | && !IS_DIR_SEPARATOR (filename[0])) | |
2882 | dirname[base++ - filename] = '.'; | |
2883 | ||
e1024ff1 DJ |
2884 | return dirname; |
2885 | } | |
d1a41061 | 2886 | |
773a1edc TT |
2887 | /* See utils.h. */ |
2888 | ||
2889 | void | |
2890 | gdb_argv::reset (const char *s) | |
2891 | { | |
2892 | char **argv = buildargv (s); | |
2893 | ||
2894 | if (s != NULL && argv == NULL) | |
2895 | malloc_failure (0); | |
2896 | ||
2897 | freeargv (m_argv); | |
2898 | m_argv = argv; | |
2899 | } | |
2900 | ||
dc146f7c VP |
2901 | int |
2902 | compare_positive_ints (const void *ap, const void *bp) | |
2903 | { | |
2904 | /* Because we know we're comparing two ints which are positive, | |
2905 | there's no danger of overflow here. */ | |
2906 | return * (int *) ap - * (int *) bp; | |
2907 | } | |
2908 | ||
f8eba3c6 TT |
2909 | /* String compare function for qsort. */ |
2910 | ||
2911 | int | |
2912 | compare_strings (const void *arg1, const void *arg2) | |
2913 | { | |
2914 | const char **s1 = (const char **) arg1; | |
2915 | const char **s2 = (const char **) arg2; | |
2916 | ||
2917 | return strcmp (*s1, *s2); | |
2918 | } | |
2919 | ||
d18b8b7a | 2920 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3e43a32a MS |
2921 | #define AMBIGUOUS_MESS2 \ |
2922 | ".\nUse \"set gnutarget format-name\" to specify the format." | |
d18b8b7a HZ |
2923 | |
2924 | const char * | |
2925 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) | |
2926 | { | |
2927 | char *ret, *retp; | |
2928 | int ret_len; | |
2929 | char **p; | |
2930 | ||
2931 | /* Check if errmsg just need simple return. */ | |
2932 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
2933 | return bfd_errmsg (error_tag); | |
2934 | ||
2935 | ret_len = strlen (bfd_errmsg (error_tag)) + strlen (AMBIGUOUS_MESS1) | |
2936 | + strlen (AMBIGUOUS_MESS2); | |
2937 | for (p = matching; *p; p++) | |
2938 | ret_len += strlen (*p) + 1; | |
224c3ddb | 2939 | ret = (char *) xmalloc (ret_len + 1); |
d18b8b7a HZ |
2940 | retp = ret; |
2941 | make_cleanup (xfree, ret); | |
2942 | ||
2943 | strcpy (retp, bfd_errmsg (error_tag)); | |
2944 | retp += strlen (retp); | |
2945 | ||
2946 | strcpy (retp, AMBIGUOUS_MESS1); | |
2947 | retp += strlen (retp); | |
2948 | ||
2949 | for (p = matching; *p; p++) | |
2950 | { | |
2951 | sprintf (retp, " %s", *p); | |
2952 | retp += strlen (retp); | |
2953 | } | |
2954 | xfree (matching); | |
2955 | ||
2956 | strcpy (retp, AMBIGUOUS_MESS2); | |
2957 | ||
2958 | return ret; | |
2959 | } | |
2960 | ||
74164c56 JK |
2961 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
2962 | ||
2963 | int | |
c0939df1 | 2964 | parse_pid_to_attach (const char *args) |
74164c56 JK |
2965 | { |
2966 | unsigned long pid; | |
2967 | char *dummy; | |
2968 | ||
2969 | if (!args) | |
2970 | error_no_arg (_("process-id to attach")); | |
2971 | ||
c0939df1 | 2972 | dummy = (char *) args; |
74164c56 JK |
2973 | pid = strtoul (args, &dummy, 0); |
2974 | /* Some targets don't set errno on errors, grrr! */ | |
2975 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
2976 | error (_("Illegal process-id: %s."), args); | |
2977 | ||
2978 | return pid; | |
2979 | } | |
2980 | ||
353d1d73 JK |
2981 | /* Helper for make_bpstat_clear_actions_cleanup. */ |
2982 | ||
2983 | static void | |
2984 | do_bpstat_clear_actions_cleanup (void *unused) | |
2985 | { | |
2986 | bpstat_clear_actions (); | |
2987 | } | |
2988 | ||
2989 | /* Call bpstat_clear_actions for the case an exception is throw. You should | |
2990 | discard_cleanups if no exception is caught. */ | |
2991 | ||
2992 | struct cleanup * | |
2993 | make_bpstat_clear_actions_cleanup (void) | |
2994 | { | |
2995 | return make_cleanup (do_bpstat_clear_actions_cleanup, NULL); | |
2996 | } | |
2997 | ||
df15bd07 JK |
2998 | /* Check for GCC >= 4.x according to the symtab->producer string. Return minor |
2999 | version (x) of 4.x in such case. If it is not GCC or it is GCC older than | |
3000 | 4.x return -1. If it is GCC 5.x or higher return INT_MAX. */ | |
3001 | ||
3002 | int | |
3003 | producer_is_gcc_ge_4 (const char *producer) | |
3004 | { | |
df15bd07 | 3005 | int major, minor; |
b1ffba5a MW |
3006 | |
3007 | if (! producer_is_gcc (producer, &major, &minor)) | |
3008 | return -1; | |
df15bd07 JK |
3009 | if (major < 4) |
3010 | return -1; | |
3011 | if (major > 4) | |
3012 | return INT_MAX; | |
3013 | return minor; | |
3014 | } | |
3015 | ||
cc7039d3 JB |
3016 | /* Returns nonzero if the given PRODUCER string is GCC and sets the MAJOR |
3017 | and MINOR versions when not NULL. Returns zero if the given PRODUCER | |
b1ffba5a MW |
3018 | is NULL or it isn't GCC. */ |
3019 | ||
cc7039d3 | 3020 | int |
b1ffba5a | 3021 | producer_is_gcc (const char *producer, int *major, int *minor) |
38360086 MW |
3022 | { |
3023 | const char *cs; | |
38360086 | 3024 | |
61012eef | 3025 | if (producer != NULL && startswith (producer, "GNU ")) |
38360086 | 3026 | { |
b1ffba5a MW |
3027 | int maj, min; |
3028 | ||
3029 | if (major == NULL) | |
3030 | major = &maj; | |
3031 | if (minor == NULL) | |
3032 | minor = &min; | |
3033 | ||
9c37b5ae | 3034 | /* Skip any identifier after "GNU " - such as "C11" or "C++". |
38360086 MW |
3035 | A full producer string might look like: |
3036 | "GNU C 4.7.2" | |
3037 | "GNU Fortran 4.8.2 20140120 (Red Hat 4.8.2-16) -mtune=generic ..." | |
3038 | "GNU C++14 5.0.0 20150123 (experimental)" | |
3039 | */ | |
3040 | cs = &producer[strlen ("GNU ")]; | |
3041 | while (*cs && !isspace (*cs)) | |
3042 | cs++; | |
3043 | if (*cs && isspace (*cs)) | |
3044 | cs++; | |
b1ffba5a | 3045 | if (sscanf (cs, "%d.%d", major, minor) == 2) |
cc7039d3 | 3046 | return 1; |
38360086 MW |
3047 | } |
3048 | ||
3049 | /* Not recognized as GCC. */ | |
cc7039d3 | 3050 | return 0; |
38360086 MW |
3051 | } |
3052 | ||
e4ab2fad JK |
3053 | /* Helper for make_cleanup_free_char_ptr_vec. */ |
3054 | ||
3055 | static void | |
3056 | do_free_char_ptr_vec (void *arg) | |
3057 | { | |
19ba03f4 | 3058 | VEC (char_ptr) *char_ptr_vec = (VEC (char_ptr) *) arg; |
e4ab2fad JK |
3059 | |
3060 | free_char_ptr_vec (char_ptr_vec); | |
3061 | } | |
3062 | ||
3063 | /* Make cleanup handler calling xfree for each element of CHAR_PTR_VEC and | |
3064 | final VEC_free for CHAR_PTR_VEC itself. | |
3065 | ||
3066 | You must not modify CHAR_PTR_VEC after this cleanup registration as the | |
3067 | CHAR_PTR_VEC base address may change on its updates. Contrary to VEC_free | |
3068 | this function does not (cannot) clear the pointer. */ | |
3069 | ||
3070 | struct cleanup * | |
3071 | make_cleanup_free_char_ptr_vec (VEC (char_ptr) *char_ptr_vec) | |
3072 | { | |
3073 | return make_cleanup (do_free_char_ptr_vec, char_ptr_vec); | |
3074 | } | |
3075 | ||
6dea1fbd JK |
3076 | /* Substitute all occurences of string FROM by string TO in *STRINGP. *STRINGP |
3077 | must come from xrealloc-compatible allocator and it may be updated. FROM | |
1564a261 JK |
3078 | needs to be delimited by IS_DIR_SEPARATOR or DIRNAME_SEPARATOR (or be |
3079 | located at the start or end of *STRINGP. */ | |
6dea1fbd JK |
3080 | |
3081 | void | |
3082 | substitute_path_component (char **stringp, const char *from, const char *to) | |
3083 | { | |
3084 | char *string = *stringp, *s; | |
3085 | const size_t from_len = strlen (from); | |
3086 | const size_t to_len = strlen (to); | |
3087 | ||
3088 | for (s = string;;) | |
3089 | { | |
3090 | s = strstr (s, from); | |
3091 | if (s == NULL) | |
3092 | break; | |
3093 | ||
1564a261 JK |
3094 | if ((s == string || IS_DIR_SEPARATOR (s[-1]) |
3095 | || s[-1] == DIRNAME_SEPARATOR) | |
3096 | && (s[from_len] == '\0' || IS_DIR_SEPARATOR (s[from_len]) | |
3097 | || s[from_len] == DIRNAME_SEPARATOR)) | |
6dea1fbd JK |
3098 | { |
3099 | char *string_new; | |
3100 | ||
224c3ddb SM |
3101 | string_new |
3102 | = (char *) xrealloc (string, (strlen (string) + to_len + 1)); | |
6dea1fbd JK |
3103 | |
3104 | /* Relocate the current S pointer. */ | |
3105 | s = s - string + string_new; | |
3106 | string = string_new; | |
3107 | ||
3108 | /* Replace from by to. */ | |
3109 | memmove (&s[to_len], &s[from_len], strlen (&s[from_len]) + 1); | |
3110 | memcpy (s, to, to_len); | |
3111 | ||
3112 | s += to_len; | |
3113 | } | |
3114 | else | |
3115 | s++; | |
3116 | } | |
3117 | ||
3118 | *stringp = string; | |
3119 | } | |
3120 | ||
0b6cb71e DE |
3121 | #ifdef HAVE_WAITPID |
3122 | ||
3123 | #ifdef SIGALRM | |
3124 | ||
3125 | /* SIGALRM handler for waitpid_with_timeout. */ | |
3126 | ||
3127 | static void | |
3128 | sigalrm_handler (int signo) | |
3129 | { | |
3130 | /* Nothing to do. */ | |
3131 | } | |
3132 | ||
3133 | #endif | |
3134 | ||
3135 | /* Wrapper to wait for child PID to die with TIMEOUT. | |
3136 | TIMEOUT is the time to stop waiting in seconds. | |
3137 | If TIMEOUT is zero, pass WNOHANG to waitpid. | |
3138 | Returns PID if it was successfully waited for, otherwise -1. | |
3139 | ||
3140 | Timeouts are currently implemented with alarm and SIGALRM. | |
3141 | If the host does not support them, this waits "forever". | |
3142 | It would be odd though for a host to have waitpid and not SIGALRM. */ | |
3143 | ||
3144 | pid_t | |
3145 | wait_to_die_with_timeout (pid_t pid, int *status, int timeout) | |
3146 | { | |
3147 | pid_t waitpid_result; | |
3148 | ||
3149 | gdb_assert (pid > 0); | |
3150 | gdb_assert (timeout >= 0); | |
3151 | ||
3152 | if (timeout > 0) | |
3153 | { | |
3154 | #ifdef SIGALRM | |
3155 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3156 | struct sigaction sa, old_sa; | |
3157 | ||
3158 | sa.sa_handler = sigalrm_handler; | |
3159 | sigemptyset (&sa.sa_mask); | |
3160 | sa.sa_flags = 0; | |
3161 | sigaction (SIGALRM, &sa, &old_sa); | |
3162 | #else | |
a40805d4 | 3163 | sighandler_t ofunc; |
0b6cb71e | 3164 | |
a40805d4 | 3165 | ofunc = signal (SIGALRM, sigalrm_handler); |
0b6cb71e DE |
3166 | #endif |
3167 | ||
3168 | alarm (timeout); | |
3169 | #endif | |
3170 | ||
3171 | waitpid_result = waitpid (pid, status, 0); | |
3172 | ||
3173 | #ifdef SIGALRM | |
3174 | alarm (0); | |
3175 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3176 | sigaction (SIGALRM, &old_sa, NULL); | |
3177 | #else | |
3178 | signal (SIGALRM, ofunc); | |
3179 | #endif | |
3180 | #endif | |
3181 | } | |
3182 | else | |
3183 | waitpid_result = waitpid (pid, status, WNOHANG); | |
3184 | ||
3185 | if (waitpid_result == pid) | |
3186 | return pid; | |
3187 | else | |
3188 | return -1; | |
3189 | } | |
3190 | ||
3191 | #endif /* HAVE_WAITPID */ | |
3192 | ||
202cbf1c JK |
3193 | /* Provide fnmatch compatible function for FNM_FILE_NAME matching of host files. |
3194 | Both FNM_FILE_NAME and FNM_NOESCAPE must be set in FLAGS. | |
3195 | ||
3196 | It handles correctly HAVE_DOS_BASED_FILE_SYSTEM and | |
3197 | HAVE_CASE_INSENSITIVE_FILE_SYSTEM. */ | |
3198 | ||
3199 | int | |
3200 | gdb_filename_fnmatch (const char *pattern, const char *string, int flags) | |
3201 | { | |
3202 | gdb_assert ((flags & FNM_FILE_NAME) != 0); | |
3203 | ||
3204 | /* It is unclear how '\' escaping vs. directory separator should coexist. */ | |
3205 | gdb_assert ((flags & FNM_NOESCAPE) != 0); | |
3206 | ||
3207 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3208 | { | |
3209 | char *pattern_slash, *string_slash; | |
3210 | ||
3211 | /* Replace '\' by '/' in both strings. */ | |
3212 | ||
0ae1c716 | 3213 | pattern_slash = (char *) alloca (strlen (pattern) + 1); |
202cbf1c JK |
3214 | strcpy (pattern_slash, pattern); |
3215 | pattern = pattern_slash; | |
3216 | for (; *pattern_slash != 0; pattern_slash++) | |
3217 | if (IS_DIR_SEPARATOR (*pattern_slash)) | |
3218 | *pattern_slash = '/'; | |
3219 | ||
0ae1c716 | 3220 | string_slash = (char *) alloca (strlen (string) + 1); |
202cbf1c JK |
3221 | strcpy (string_slash, string); |
3222 | string = string_slash; | |
3223 | for (; *string_slash != 0; string_slash++) | |
3224 | if (IS_DIR_SEPARATOR (*string_slash)) | |
3225 | *string_slash = '/'; | |
3226 | } | |
3227 | #endif /* HAVE_DOS_BASED_FILE_SYSTEM */ | |
3228 | ||
3229 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
3230 | flags |= FNM_CASEFOLD; | |
3231 | #endif /* HAVE_CASE_INSENSITIVE_FILE_SYSTEM */ | |
3232 | ||
3233 | return fnmatch (pattern, string, flags); | |
3234 | } | |
3235 | ||
cce0e923 DE |
3236 | /* Return the number of path elements in PATH. |
3237 | / = 1 | |
3238 | /foo = 2 | |
3239 | /foo/ = 2 | |
3240 | foo/bar = 2 | |
3241 | foo/ = 1 */ | |
3242 | ||
3243 | int | |
3244 | count_path_elements (const char *path) | |
3245 | { | |
3246 | int count = 0; | |
3247 | const char *p = path; | |
3248 | ||
3249 | if (HAS_DRIVE_SPEC (p)) | |
3250 | { | |
3251 | p = STRIP_DRIVE_SPEC (p); | |
3252 | ++count; | |
3253 | } | |
3254 | ||
3255 | while (*p != '\0') | |
3256 | { | |
3257 | if (IS_DIR_SEPARATOR (*p)) | |
3258 | ++count; | |
3259 | ++p; | |
3260 | } | |
3261 | ||
3262 | /* Backup one if last character is /, unless it's the only one. */ | |
3263 | if (p > path + 1 && IS_DIR_SEPARATOR (p[-1])) | |
3264 | --count; | |
3265 | ||
3266 | /* Add one for the file name, if present. */ | |
3267 | if (p > path && !IS_DIR_SEPARATOR (p[-1])) | |
3268 | ++count; | |
3269 | ||
3270 | return count; | |
3271 | } | |
3272 | ||
3273 | /* Remove N leading path elements from PATH. | |
3274 | N must be non-negative. | |
3275 | If PATH has more than N path elements then return NULL. | |
3276 | If PATH has exactly N path elements then return "". | |
3277 | See count_path_elements for a description of how we do the counting. */ | |
3278 | ||
3279 | const char * | |
3280 | strip_leading_path_elements (const char *path, int n) | |
3281 | { | |
3282 | int i = 0; | |
3283 | const char *p = path; | |
3284 | ||
3285 | gdb_assert (n >= 0); | |
3286 | ||
3287 | if (n == 0) | |
3288 | return p; | |
3289 | ||
3290 | if (HAS_DRIVE_SPEC (p)) | |
3291 | { | |
3292 | p = STRIP_DRIVE_SPEC (p); | |
3293 | ++i; | |
3294 | } | |
3295 | ||
3296 | while (i < n) | |
3297 | { | |
3298 | while (*p != '\0' && !IS_DIR_SEPARATOR (*p)) | |
3299 | ++p; | |
3300 | if (*p == '\0') | |
3301 | { | |
3302 | if (i + 1 == n) | |
3303 | return ""; | |
3304 | return NULL; | |
3305 | } | |
3306 | ++p; | |
3307 | ++i; | |
3308 | } | |
3309 | ||
3310 | return p; | |
3311 | } | |
3312 | ||
2c0b251b PA |
3313 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
3314 | extern initialize_file_ftype _initialize_utils; | |
3315 | ||
3c16cced PA |
3316 | void |
3317 | _initialize_utils (void) | |
3318 | { | |
3319 | add_internal_problem_command (&internal_error_problem); | |
3320 | add_internal_problem_command (&internal_warning_problem); | |
57fcfb1b | 3321 | add_internal_problem_command (&demangler_warning_problem); |
14278e1f TT |
3322 | |
3323 | #if GDB_SELF_TEST | |
3324 | selftests::register_test (gdb_realpath_tests); | |
3325 | #endif | |
3c16cced | 3326 | } |