Commit | Line | Data |
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c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
1bac305b | 2 | |
e2882c85 | 3 | Copyright (C) 1986-2018 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" |
223ffa71 | 70 | #include "common/gdb_optional.h" |
0662b6a7 PA |
71 | #include "cp-support.h" |
72 | #include <algorithm> | |
b4987c95 | 73 | #include "common/pathstuff.h" |
8626589c | 74 | |
a3828db0 | 75 | #if !HAVE_DECL_MALLOC |
5ac79d78 | 76 | extern PTR malloc (); /* ARI: PTR */ |
3c37485b | 77 | #endif |
a3828db0 | 78 | #if !HAVE_DECL_REALLOC |
5ac79d78 | 79 | extern PTR realloc (); /* ARI: PTR */ |
0e52036f | 80 | #endif |
a3828db0 | 81 | #if !HAVE_DECL_FREE |
81b8eb80 AC |
82 | extern void free (); |
83 | #endif | |
81b8eb80 | 84 | |
9a4105ab | 85 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
86 | |
87 | /* Prototypes for local functions */ | |
88 | ||
d9fcf2fb | 89 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
a0b31db1 | 90 | va_list, int) ATTRIBUTE_PRINTF (2, 0); |
c906108c | 91 | |
d9fcf2fb | 92 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 93 | |
a14ed312 | 94 | static void prompt_for_continue (void); |
c906108c | 95 | |
eb0d3137 | 96 | static void set_screen_size (void); |
a14ed312 | 97 | static void set_width (void); |
c906108c | 98 | |
260c0b2a DE |
99 | /* Time spent in prompt_for_continue in the currently executing command |
100 | waiting for user to respond. | |
101 | Initialized in make_command_stats_cleanup. | |
102 | Modified in prompt_for_continue and defaulted_query. | |
103 | Used in report_command_stats. */ | |
104 | ||
dcb07cfa | 105 | static std::chrono::steady_clock::duration prompt_for_continue_wait_time; |
260c0b2a | 106 | |
75feb17d DJ |
107 | /* A flag indicating whether to timestamp debugging messages. */ |
108 | ||
109 | static int debug_timestamp = 0; | |
110 | ||
c906108c SS |
111 | /* Nonzero means that strings with character values >0x7F should be printed |
112 | as octal escapes. Zero means just print the value (e.g. it's an | |
113 | international character, and the terminal or window can cope.) */ | |
114 | ||
115 | int sevenbit_strings = 0; | |
920d2a44 AC |
116 | static void |
117 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
118 | struct cmd_list_element *c, const char *value) | |
119 | { | |
3e43a32a MS |
120 | fprintf_filtered (file, _("Printing of 8-bit characters " |
121 | "in strings as \\nnn is %s.\n"), | |
920d2a44 AC |
122 | value); |
123 | } | |
c906108c | 124 | |
c906108c SS |
125 | /* String to be printed before warning messages, if any. */ |
126 | ||
69bbf465 | 127 | const char *warning_pre_print = "\nwarning: "; |
c906108c SS |
128 | |
129 | int pagination_enabled = 1; | |
920d2a44 AC |
130 | static void |
131 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
132 | struct cmd_list_element *c, const char *value) | |
133 | { | |
134 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
135 | } | |
136 | ||
c906108c | 137 | \f |
c27f5738 | 138 | /* Cleanup utilities. |
c5aa993b | 139 | |
c27f5738 DE |
140 | These are not defined in cleanups.c (nor declared in cleanups.h) |
141 | because while they use the "cleanup API" they are not part of the | |
142 | "cleanup API". */ | |
7a292a7a | 143 | |
028d0ed5 TJB |
144 | /* Helper for make_cleanup_value_free_to_mark. */ |
145 | ||
146 | static void | |
147 | do_value_free_to_mark (void *value) | |
148 | { | |
149 | value_free_to_mark ((struct value *) value); | |
150 | } | |
151 | ||
152 | /* Free all values allocated since MARK was obtained by value_mark | |
153 | (except for those released) when the cleanup is run. */ | |
154 | ||
155 | struct cleanup * | |
156 | make_cleanup_value_free_to_mark (struct value *mark) | |
157 | { | |
e0088cfd | 158 | return make_cleanup (do_value_free_to_mark, mark); |
028d0ed5 TJB |
159 | } |
160 | ||
c906108c SS |
161 | /* This function is useful for cleanups. |
162 | Do | |
163 | ||
c5aa993b JM |
164 | foo = xmalloc (...); |
165 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
166 | |
167 | to arrange to free the object thus allocated. */ | |
168 | ||
169 | void | |
2f9429ae | 170 | free_current_contents (void *ptr) |
c906108c | 171 | { |
19ba03f4 | 172 | void **location = (void **) ptr; |
e0627e85 | 173 | |
e2f9c474 | 174 | if (location == NULL) |
8e65ff28 | 175 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 176 | _("free_current_contents: NULL pointer")); |
2f9429ae | 177 | if (*location != NULL) |
e2f9c474 | 178 | { |
b8c9b27d | 179 | xfree (*location); |
e2f9c474 AC |
180 | *location = NULL; |
181 | } | |
c906108c | 182 | } |
c906108c | 183 | \f |
c5aa993b | 184 | |
8731e58e | 185 | |
f5a96129 AC |
186 | /* Print a warning message. The first argument STRING is the warning |
187 | message, used as an fprintf format string, the second is the | |
188 | va_list of arguments for that string. A warning is unfiltered (not | |
189 | paginated) so that the user does not need to page through each | |
190 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
191 | |
192 | void | |
f5a96129 | 193 | vwarning (const char *string, va_list args) |
c906108c | 194 | { |
9a4105ab AC |
195 | if (deprecated_warning_hook) |
196 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
197 | else |
198 | { | |
223ffa71 | 199 | gdb::optional<target_terminal::scoped_restore_terminal_state> term_state; |
0d2f5c07 | 200 | if (target_supports_terminal_ours ()) |
c5ac1540 | 201 | { |
223ffa71 TT |
202 | term_state.emplace (); |
203 | target_terminal::ours_for_output (); | |
c5ac1540 | 204 | } |
0d2f5c07 GB |
205 | if (filtered_printing_initialized ()) |
206 | wrap_here (""); /* Force out any buffered output. */ | |
f5a96129 AC |
207 | gdb_flush (gdb_stdout); |
208 | if (warning_pre_print) | |
306d9ac5 | 209 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
210 | vfprintf_unfiltered (gdb_stderr, string, args); |
211 | fprintf_unfiltered (gdb_stderr, "\n"); | |
f5a96129 | 212 | } |
c906108c SS |
213 | } |
214 | ||
c906108c SS |
215 | /* Print an error message and return to command level. |
216 | The first argument STRING is the error message, used as a fprintf string, | |
217 | and the remaining args are passed as arguments to it. */ | |
218 | ||
c25c4a8b | 219 | void |
4ce44c66 JM |
220 | verror (const char *string, va_list args) |
221 | { | |
6b1b7650 | 222 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
223 | } |
224 | ||
c25c4a8b | 225 | void |
d7e74731 | 226 | error_stream (const string_file &stream) |
2acceee2 | 227 | { |
d7e74731 | 228 | error (("%s"), stream.c_str ()); |
2acceee2 | 229 | } |
c906108c | 230 | |
2437fd32 GB |
231 | /* Emit a message and abort. */ |
232 | ||
233 | static void ATTRIBUTE_NORETURN | |
234 | abort_with_message (const char *msg) | |
235 | { | |
72542b8e | 236 | if (current_ui == NULL) |
2437fd32 GB |
237 | fputs (msg, stderr); |
238 | else | |
239 | fputs_unfiltered (msg, gdb_stderr); | |
240 | ||
241 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
242 | } | |
243 | ||
7991dee7 JK |
244 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
245 | ||
eae7090b | 246 | void |
7991dee7 JK |
247 | dump_core (void) |
248 | { | |
249 | #ifdef HAVE_SETRLIMIT | |
250 | struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY }; | |
251 | ||
252 | setrlimit (RLIMIT_CORE, &rlim); | |
253 | #endif /* HAVE_SETRLIMIT */ | |
254 | ||
255 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
256 | } | |
257 | ||
3e43a32a | 258 | /* Check whether GDB will be able to dump core using the dump_core |
eae7090b GB |
259 | function. Returns zero if GDB cannot or should not dump core. |
260 | If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected. | |
261 | If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected. */ | |
7991dee7 | 262 | |
eae7090b GB |
263 | int |
264 | can_dump_core (enum resource_limit_kind limit_kind) | |
7991dee7 JK |
265 | { |
266 | #ifdef HAVE_GETRLIMIT | |
267 | struct rlimit rlim; | |
268 | ||
269 | /* Be quiet and assume we can dump if an error is returned. */ | |
270 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
271 | return 1; | |
272 | ||
eae7090b | 273 | switch (limit_kind) |
7991dee7 | 274 | { |
eae7090b GB |
275 | case LIMIT_CUR: |
276 | if (rlim.rlim_cur == 0) | |
277 | return 0; | |
565e0eda | 278 | /* Fall through. */ |
eae7090b GB |
279 | |
280 | case LIMIT_MAX: | |
281 | if (rlim.rlim_max == 0) | |
282 | return 0; | |
7991dee7 JK |
283 | } |
284 | #endif /* HAVE_GETRLIMIT */ | |
285 | ||
286 | return 1; | |
287 | } | |
288 | ||
eae7090b GB |
289 | /* Print a warning that we cannot dump core. */ |
290 | ||
291 | void | |
292 | warn_cant_dump_core (const char *reason) | |
293 | { | |
294 | fprintf_unfiltered (gdb_stderr, | |
295 | _("%s\nUnable to dump core, use `ulimit -c" | |
296 | " unlimited' before executing GDB next time.\n"), | |
297 | reason); | |
298 | } | |
299 | ||
300 | /* Check whether GDB will be able to dump core using the dump_core | |
301 | function, and print a warning if we cannot. */ | |
302 | ||
303 | static int | |
304 | can_dump_core_warn (enum resource_limit_kind limit_kind, | |
305 | const char *reason) | |
306 | { | |
307 | int core_dump_allowed = can_dump_core (limit_kind); | |
308 | ||
309 | if (!core_dump_allowed) | |
310 | warn_cant_dump_core (reason); | |
311 | ||
312 | return core_dump_allowed; | |
313 | } | |
314 | ||
3c16cced PA |
315 | /* Allow the user to configure the debugger behavior with respect to |
316 | what to do when an internal problem is detected. */ | |
317 | ||
318 | const char internal_problem_ask[] = "ask"; | |
319 | const char internal_problem_yes[] = "yes"; | |
320 | const char internal_problem_no[] = "no"; | |
40478521 | 321 | static const char *const internal_problem_modes[] = |
3c16cced PA |
322 | { |
323 | internal_problem_ask, | |
324 | internal_problem_yes, | |
325 | internal_problem_no, | |
326 | NULL | |
327 | }; | |
3c16cced | 328 | |
581e13c1 | 329 | /* Print a message reporting an internal error/warning. Ask the user |
dec43320 AC |
330 | if they want to continue, dump core, or just exit. Return |
331 | something to indicate a quit. */ | |
c906108c | 332 | |
dec43320 | 333 | struct internal_problem |
c906108c | 334 | { |
dec43320 | 335 | const char *name; |
57fcfb1b | 336 | int user_settable_should_quit; |
3c16cced | 337 | const char *should_quit; |
57fcfb1b | 338 | int user_settable_should_dump_core; |
3c16cced | 339 | const char *should_dump_core; |
dec43320 AC |
340 | }; |
341 | ||
342 | /* Report a problem, internal to GDB, to the user. Once the problem | |
343 | has been reported, and assuming GDB didn't quit, the caller can | |
344 | either allow execution to resume or throw an error. */ | |
345 | ||
a0b31db1 | 346 | static void ATTRIBUTE_PRINTF (4, 0) |
dec43320 | 347 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 348 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 349 | { |
dec43320 | 350 | static int dejavu; |
375fc983 | 351 | int quit_p; |
7be570e7 | 352 | int dump_core_p; |
e05550d7 | 353 | std::string reason; |
c906108c | 354 | |
dec43320 | 355 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
356 | { |
357 | static char msg[] = "Recursive internal problem.\n"; | |
5d502164 | 358 | |
714b1282 AC |
359 | switch (dejavu) |
360 | { | |
361 | case 0: | |
362 | dejavu = 1; | |
363 | break; | |
364 | case 1: | |
365 | dejavu = 2; | |
2437fd32 | 366 | abort_with_message (msg); |
714b1282 AC |
367 | default: |
368 | dejavu = 3; | |
bf1d7d9c JB |
369 | /* Newer GLIBC versions put the warn_unused_result attribute |
370 | on write, but this is one of those rare cases where | |
371 | ignoring the return value is correct. Casting to (void) | |
372 | does not fix this problem. This is the solution suggested | |
373 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
374 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
7991dee7 | 375 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
376 | exit (1); |
377 | } | |
378 | } | |
c906108c | 379 | |
714b1282 AC |
380 | /* Create a string containing the full error/warning message. Need |
381 | to call query with this full string, as otherwize the reason | |
382 | (error/warning) and question become separated. Format using a | |
383 | style similar to a compiler error message. Include extra detail | |
384 | so that the user knows that they are living on the edge. */ | |
385 | { | |
f8bfbf22 | 386 | std::string msg = string_vprintf (fmt, ap); |
e05550d7 TT |
387 | reason = string_printf ("%s:%d: %s: %s\n" |
388 | "A problem internal to GDB has been detected,\n" | |
389 | "further debugging may prove unreliable.", | |
390 | file, line, problem->name, msg.c_str ()); | |
714b1282 | 391 | } |
7be570e7 | 392 | |
2437fd32 | 393 | /* Fall back to abort_with_message if gdb_stderr is not set up. */ |
72542b8e | 394 | if (current_ui == NULL) |
2437fd32 | 395 | { |
e05550d7 | 396 | fputs (reason.c_str (), stderr); |
2437fd32 GB |
397 | abort_with_message ("\n"); |
398 | } | |
399 | ||
400 | /* Try to get the message out and at the start of a new line. */ | |
223ffa71 | 401 | gdb::optional<target_terminal::scoped_restore_terminal_state> term_state; |
2437fd32 | 402 | if (target_supports_terminal_ours ()) |
c5ac1540 | 403 | { |
223ffa71 TT |
404 | term_state.emplace (); |
405 | target_terminal::ours_for_output (); | |
c5ac1540 | 406 | } |
2437fd32 GB |
407 | if (filtered_printing_initialized ()) |
408 | begin_line (); | |
409 | ||
196a707b | 410 | /* Emit the message unless query will emit it below. */ |
2437fd32 GB |
411 | if (problem->should_quit != internal_problem_ask |
412 | || !confirm | |
413 | || !filtered_printing_initialized ()) | |
e05550d7 | 414 | fprintf_unfiltered (gdb_stderr, "%s\n", reason.c_str ()); |
196a707b | 415 | |
3c16cced | 416 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 417 | { |
dec43320 | 418 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
419 | this lessens the likelihood of GDB going into an infinite |
420 | loop. */ | |
2437fd32 | 421 | if (!confirm || !filtered_printing_initialized ()) |
196a707b | 422 | quit_p = 1; |
26bb68be | 423 | else |
e05550d7 TT |
424 | quit_p = query (_("%s\nQuit this debugging session? "), |
425 | reason.c_str ()); | |
dec43320 | 426 | } |
3c16cced PA |
427 | else if (problem->should_quit == internal_problem_yes) |
428 | quit_p = 1; | |
429 | else if (problem->should_quit == internal_problem_no) | |
430 | quit_p = 0; | |
431 | else | |
432 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 433 | |
add6c04d GB |
434 | fputs_unfiltered (_("\nThis is a bug, please report it."), gdb_stderr); |
435 | if (REPORT_BUGS_TO[0]) | |
436 | fprintf_unfiltered (gdb_stderr, _(" For instructions, see:\n%s."), | |
437 | REPORT_BUGS_TO); | |
438 | fputs_unfiltered ("\n\n", gdb_stderr); | |
439 | ||
3c16cced | 440 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 441 | { |
e05550d7 | 442 | if (!can_dump_core_warn (LIMIT_MAX, reason.c_str ())) |
7991dee7 | 443 | dump_core_p = 0; |
2437fd32 GB |
444 | else if (!filtered_printing_initialized ()) |
445 | dump_core_p = 1; | |
7991dee7 JK |
446 | else |
447 | { | |
448 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
449 | `dropping' so that it is easier to see that something went | |
450 | wrong in GDB. */ | |
e05550d7 TT |
451 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), |
452 | reason.c_str ()); | |
7991dee7 | 453 | } |
dec43320 | 454 | } |
3c16cced | 455 | else if (problem->should_dump_core == internal_problem_yes) |
e05550d7 | 456 | dump_core_p = can_dump_core_warn (LIMIT_MAX, reason.c_str ()); |
3c16cced PA |
457 | else if (problem->should_dump_core == internal_problem_no) |
458 | dump_core_p = 0; | |
459 | else | |
460 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 461 | |
375fc983 | 462 | if (quit_p) |
7be570e7 JM |
463 | { |
464 | if (dump_core_p) | |
7991dee7 | 465 | dump_core (); |
375fc983 AC |
466 | else |
467 | exit (1); | |
7be570e7 JM |
468 | } |
469 | else | |
470 | { | |
471 | if (dump_core_p) | |
375fc983 | 472 | { |
9b265ec2 | 473 | #ifdef HAVE_WORKING_FORK |
375fc983 | 474 | if (fork () == 0) |
7991dee7 | 475 | dump_core (); |
9b265ec2 | 476 | #endif |
375fc983 | 477 | } |
7be570e7 | 478 | } |
96baa820 JM |
479 | |
480 | dejavu = 0; | |
dec43320 AC |
481 | } |
482 | ||
483 | static struct internal_problem internal_error_problem = { | |
57fcfb1b | 484 | "internal-error", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
485 | }; |
486 | ||
c25c4a8b | 487 | void |
8731e58e | 488 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
489 | { |
490 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
2c51604d | 491 | throw_quit (_("Command aborted.")); |
c906108c SS |
492 | } |
493 | ||
dec43320 | 494 | static struct internal_problem internal_warning_problem = { |
57fcfb1b | 495 | "internal-warning", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
496 | }; |
497 | ||
498 | void | |
8731e58e | 499 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
500 | { |
501 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
502 | } | |
503 | ||
57fcfb1b GB |
504 | static struct internal_problem demangler_warning_problem = { |
505 | "demangler-warning", 1, internal_problem_ask, 0, internal_problem_no | |
506 | }; | |
507 | ||
508 | void | |
509 | demangler_vwarning (const char *file, int line, const char *fmt, va_list ap) | |
510 | { | |
511 | internal_vproblem (&demangler_warning_problem, file, line, fmt, ap); | |
512 | } | |
513 | ||
514 | void | |
515 | demangler_warning (const char *file, int line, const char *string, ...) | |
516 | { | |
517 | va_list ap; | |
518 | ||
519 | va_start (ap, string); | |
520 | demangler_vwarning (file, line, string, ap); | |
521 | va_end (ap); | |
522 | } | |
523 | ||
3c16cced PA |
524 | /* Dummy functions to keep add_prefix_cmd happy. */ |
525 | ||
526 | static void | |
981a3fb3 | 527 | set_internal_problem_cmd (const char *args, int from_tty) |
3c16cced PA |
528 | { |
529 | } | |
530 | ||
531 | static void | |
981a3fb3 | 532 | show_internal_problem_cmd (const char *args, int from_tty) |
3c16cced PA |
533 | { |
534 | } | |
535 | ||
536 | /* When GDB reports an internal problem (error or warning) it gives | |
537 | the user the opportunity to quit GDB and/or create a core file of | |
538 | the current debug session. This function registers a few commands | |
539 | that make it possible to specify that GDB should always or never | |
540 | quit or create a core file, without asking. The commands look | |
541 | like: | |
542 | ||
543 | maint set PROBLEM-NAME quit ask|yes|no | |
544 | maint show PROBLEM-NAME quit | |
545 | maint set PROBLEM-NAME corefile ask|yes|no | |
546 | maint show PROBLEM-NAME corefile | |
547 | ||
548 | Where PROBLEM-NAME is currently "internal-error" or | |
549 | "internal-warning". */ | |
550 | ||
551 | static void | |
552 | add_internal_problem_command (struct internal_problem *problem) | |
553 | { | |
554 | struct cmd_list_element **set_cmd_list; | |
555 | struct cmd_list_element **show_cmd_list; | |
556 | char *set_doc; | |
557 | char *show_doc; | |
558 | ||
8d749320 SM |
559 | set_cmd_list = XNEW (struct cmd_list_element *); |
560 | show_cmd_list = XNEW (struct cmd_list_element *); | |
3c16cced PA |
561 | *set_cmd_list = NULL; |
562 | *show_cmd_list = NULL; | |
563 | ||
564 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
565 | problem->name); | |
566 | ||
567 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
568 | problem->name); | |
569 | ||
981a3fb3 | 570 | add_prefix_cmd (problem->name, |
3c16cced PA |
571 | class_maintenance, set_internal_problem_cmd, set_doc, |
572 | set_cmd_list, | |
c4f7c687 MK |
573 | concat ("maintenance set ", problem->name, " ", |
574 | (char *) NULL), | |
3c16cced PA |
575 | 0/*allow-unknown*/, &maintenance_set_cmdlist); |
576 | ||
981a3fb3 | 577 | add_prefix_cmd (problem->name, |
3c16cced PA |
578 | class_maintenance, show_internal_problem_cmd, show_doc, |
579 | show_cmd_list, | |
c4f7c687 MK |
580 | concat ("maintenance show ", problem->name, " ", |
581 | (char *) NULL), | |
3c16cced PA |
582 | 0/*allow-unknown*/, &maintenance_show_cmdlist); |
583 | ||
57fcfb1b GB |
584 | if (problem->user_settable_should_quit) |
585 | { | |
586 | set_doc = xstrprintf (_("Set whether GDB should quit " | |
587 | "when an %s is detected"), | |
588 | problem->name); | |
589 | show_doc = xstrprintf (_("Show whether GDB will quit " | |
590 | "when an %s is detected"), | |
591 | problem->name); | |
592 | add_setshow_enum_cmd ("quit", class_maintenance, | |
593 | internal_problem_modes, | |
594 | &problem->should_quit, | |
595 | set_doc, | |
596 | show_doc, | |
597 | NULL, /* help_doc */ | |
598 | NULL, /* setfunc */ | |
599 | NULL, /* showfunc */ | |
600 | set_cmd_list, | |
601 | show_cmd_list); | |
602 | ||
603 | xfree (set_doc); | |
604 | xfree (show_doc); | |
605 | } | |
1eefb858 | 606 | |
57fcfb1b GB |
607 | if (problem->user_settable_should_dump_core) |
608 | { | |
609 | set_doc = xstrprintf (_("Set whether GDB should create a core " | |
610 | "file of GDB when %s is detected"), | |
611 | problem->name); | |
612 | show_doc = xstrprintf (_("Show whether GDB will create a core " | |
613 | "file of GDB when %s is detected"), | |
614 | problem->name); | |
615 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
616 | internal_problem_modes, | |
617 | &problem->should_dump_core, | |
618 | set_doc, | |
619 | show_doc, | |
620 | NULL, /* help_doc */ | |
621 | NULL, /* setfunc */ | |
622 | NULL, /* showfunc */ | |
623 | set_cmd_list, | |
624 | show_cmd_list); | |
625 | ||
626 | xfree (set_doc); | |
627 | xfree (show_doc); | |
628 | } | |
3c16cced PA |
629 | } |
630 | ||
0cf4063e | 631 | /* Return a newly allocated string, containing the PREFIX followed |
18e9961f | 632 | by the system error message for errno (separated by a colon). */ |
0cf4063e | 633 | |
18e9961f | 634 | static std::string |
0cf4063e JB |
635 | perror_string (const char *prefix) |
636 | { | |
637 | char *err; | |
0cf4063e JB |
638 | |
639 | err = safe_strerror (errno); | |
18e9961f | 640 | return std::string (prefix) + ": " + err; |
0cf4063e JB |
641 | } |
642 | ||
c906108c | 643 | /* Print the system error message for errno, and also mention STRING |
598d3636 JK |
644 | as the file name for which the error was encountered. Use ERRCODE |
645 | for the thrown exception. Then return to command level. */ | |
c906108c | 646 | |
c25c4a8b | 647 | void |
598d3636 | 648 | throw_perror_with_name (enum errors errcode, const char *string) |
c906108c | 649 | { |
18e9961f | 650 | std::string combined = perror_string (string); |
c906108c SS |
651 | |
652 | /* I understand setting these is a matter of taste. Still, some people | |
653 | may clear errno but not know about bfd_error. Doing this here is not | |
581e13c1 | 654 | unreasonable. */ |
c906108c SS |
655 | bfd_set_error (bfd_error_no_error); |
656 | errno = 0; | |
657 | ||
18e9961f | 658 | throw_error (errcode, _("%s."), combined.c_str ()); |
598d3636 JK |
659 | } |
660 | ||
661 | /* See throw_perror_with_name, ERRCODE defaults here to GENERIC_ERROR. */ | |
662 | ||
663 | void | |
664 | perror_with_name (const char *string) | |
665 | { | |
666 | throw_perror_with_name (GENERIC_ERROR, string); | |
c906108c SS |
667 | } |
668 | ||
7c647d61 JB |
669 | /* Same as perror_with_name except that it prints a warning instead |
670 | of throwing an error. */ | |
671 | ||
672 | void | |
673 | perror_warning_with_name (const char *string) | |
674 | { | |
18e9961f TT |
675 | std::string combined = perror_string (string); |
676 | warning (_("%s"), combined.c_str ()); | |
7c647d61 JB |
677 | } |
678 | ||
c906108c SS |
679 | /* Print the system error message for ERRCODE, and also mention STRING |
680 | as the file name for which the error was encountered. */ | |
681 | ||
682 | void | |
6972bc8b | 683 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
684 | { |
685 | char *err; | |
686 | char *combined; | |
687 | ||
688 | err = safe_strerror (errcode); | |
689 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
690 | strcpy (combined, string); | |
691 | strcat (combined, ": "); | |
692 | strcat (combined, err); | |
693 | ||
694 | /* We want anything which was printed on stdout to come out first, before | |
695 | this message. */ | |
696 | gdb_flush (gdb_stdout); | |
697 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
698 | } | |
699 | ||
700 | /* Control C eventually causes this to be called, at a convenient time. */ | |
701 | ||
702 | void | |
fba45db2 | 703 | quit (void) |
c906108c | 704 | { |
06c868a8 JK |
705 | if (sync_quit_force_run) |
706 | { | |
707 | sync_quit_force_run = 0; | |
268a799a | 708 | quit_force (NULL, 0); |
06c868a8 JK |
709 | } |
710 | ||
7be570e7 JM |
711 | #ifdef __MSDOS__ |
712 | /* No steenking SIGINT will ever be coming our way when the | |
713 | program is resumed. Don't lie. */ | |
2c51604d | 714 | throw_quit ("Quit"); |
7be570e7 | 715 | #else |
c906108c | 716 | if (job_control |
8731e58e AC |
717 | /* If there is no terminal switching for this target, then we can't |
718 | possibly get screwed by the lack of job control. */ | |
b0ed115f | 719 | || !target_supports_terminal_ours ()) |
2c51604d | 720 | throw_quit ("Quit"); |
c906108c | 721 | else |
2c51604d | 722 | throw_quit ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 723 | #endif |
c906108c SS |
724 | } |
725 | ||
abc56d60 PA |
726 | /* See defs.h. */ |
727 | ||
728 | void | |
729 | maybe_quit (void) | |
730 | { | |
048094ac | 731 | if (sync_quit_force_run) |
abc56d60 | 732 | quit (); |
048094ac PA |
733 | |
734 | quit_handler (); | |
735 | ||
abc56d60 PA |
736 | if (deprecated_interactive_hook) |
737 | deprecated_interactive_hook (); | |
abc56d60 PA |
738 | } |
739 | ||
c906108c | 740 | \f |
c906108c | 741 | /* Called when a memory allocation fails, with the number of bytes of |
581e13c1 | 742 | memory requested in SIZE. */ |
c906108c | 743 | |
c25c4a8b | 744 | void |
d26e3629 | 745 | malloc_failure (long size) |
c906108c SS |
746 | { |
747 | if (size > 0) | |
748 | { | |
8e65ff28 | 749 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 750 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 751 | size); |
c906108c SS |
752 | } |
753 | else | |
754 | { | |
e2e0b3e5 | 755 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
756 | } |
757 | } | |
758 | ||
c906108c SS |
759 | /* My replacement for the read system call. |
760 | Used like `read' but keeps going if `read' returns too soon. */ | |
761 | ||
762 | int | |
fba45db2 | 763 | myread (int desc, char *addr, int len) |
c906108c | 764 | { |
52f0bd74 | 765 | int val; |
c906108c SS |
766 | int orglen = len; |
767 | ||
768 | while (len > 0) | |
769 | { | |
770 | val = read (desc, addr, len); | |
771 | if (val < 0) | |
772 | return val; | |
773 | if (val == 0) | |
774 | return orglen - len; | |
775 | len -= val; | |
776 | addr += val; | |
777 | } | |
778 | return orglen; | |
779 | } | |
d26e3629 | 780 | |
c906108c | 781 | void |
aa1ee363 | 782 | print_spaces (int n, struct ui_file *file) |
c906108c | 783 | { |
392a587b | 784 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
785 | } |
786 | ||
787 | /* Print a host address. */ | |
788 | ||
789 | void | |
b80c3053 | 790 | gdb_print_host_address_1 (const void *addr, struct ui_file *stream) |
c906108c | 791 | { |
ea8992ce | 792 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 793 | } |
7c50a931 DE |
794 | |
795 | /* See utils.h. */ | |
796 | ||
797 | char * | |
798 | make_hex_string (const gdb_byte *data, size_t length) | |
799 | { | |
224c3ddb | 800 | char *result = (char *) xmalloc (length * 2 + 1); |
7c50a931 DE |
801 | char *p; |
802 | size_t i; | |
803 | ||
804 | p = result; | |
805 | for (i = 0; i < length; ++i) | |
dc4d6886 | 806 | p += xsnprintf (p, 3, "%02x", data[i]); |
7c50a931 DE |
807 | *p = '\0'; |
808 | return result; | |
809 | } | |
810 | ||
c906108c | 811 | \f |
c5aa993b | 812 | |
223ffa71 TT |
813 | /* An RAII class that sets up to handle input and then tears down |
814 | during destruction. */ | |
3eb7562a | 815 | |
223ffa71 | 816 | class scoped_input_handler |
3eb7562a | 817 | { |
223ffa71 | 818 | public: |
3eb7562a | 819 | |
223ffa71 | 820 | scoped_input_handler () |
c2f97536 | 821 | : m_quit_handler (&quit_handler, default_quit_handler), |
223ffa71 TT |
822 | m_ui (NULL) |
823 | { | |
824 | target_terminal::ours (); | |
825 | ui_register_input_event_handler (current_ui); | |
826 | if (current_ui->prompt_state == PROMPT_BLOCKED) | |
827 | m_ui = current_ui; | |
828 | } | |
3eb7562a | 829 | |
223ffa71 TT |
830 | ~scoped_input_handler () |
831 | { | |
832 | if (m_ui != NULL) | |
833 | ui_unregister_input_event_handler (m_ui); | |
834 | } | |
3eb7562a | 835 | |
223ffa71 | 836 | DISABLE_COPY_AND_ASSIGN (scoped_input_handler); |
3eb7562a | 837 | |
223ffa71 | 838 | private: |
3eb7562a | 839 | |
223ffa71 TT |
840 | /* Save and restore the terminal state. */ |
841 | target_terminal::scoped_restore_terminal_state m_term_state; | |
3eb7562a | 842 | |
223ffa71 | 843 | /* Save and restore the quit handler. */ |
c2f97536 | 844 | scoped_restore_tmpl<quit_handler_ftype *> m_quit_handler; |
223ffa71 TT |
845 | |
846 | /* The saved UI, if non-NULL. */ | |
847 | struct ui *m_ui; | |
848 | }; | |
3eb7562a | 849 | |
db1ff28b JK |
850 | \f |
851 | ||
981c7f5a | 852 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 853 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
854 | answer is yes, or default the answer to the specified default |
855 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
856 | default answer, or '\0' for no default. | |
cbdeadca JJ |
857 | CTLSTR is the control string and should end in "? ". It should |
858 | not say how to answer, because we do that. | |
859 | ARGS are the arguments passed along with the CTLSTR argument to | |
860 | printf. */ | |
861 | ||
a0b31db1 | 862 | static int ATTRIBUTE_PRINTF (1, 0) |
cbdeadca JJ |
863 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
864 | { | |
cbdeadca JJ |
865 | int retval; |
866 | int def_value; | |
867 | char def_answer, not_def_answer; | |
a121b7c1 | 868 | const char *y_string, *n_string; |
cbdeadca JJ |
869 | |
870 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
871 | if (defchar == '\0') |
872 | { | |
873 | def_value = 1; | |
874 | def_answer = 'Y'; | |
875 | not_def_answer = 'N'; | |
876 | y_string = "y"; | |
877 | n_string = "n"; | |
878 | } | |
879 | else if (defchar == 'y') | |
cbdeadca JJ |
880 | { |
881 | def_value = 1; | |
882 | def_answer = 'Y'; | |
883 | not_def_answer = 'N'; | |
884 | y_string = "[y]"; | |
885 | n_string = "n"; | |
886 | } | |
887 | else | |
888 | { | |
889 | def_value = 0; | |
890 | def_answer = 'N'; | |
891 | not_def_answer = 'Y'; | |
892 | y_string = "y"; | |
893 | n_string = "[n]"; | |
894 | } | |
895 | ||
981c7f5a | 896 | /* Automatically answer the default value if the user did not want |
a502cf95 | 897 | prompts or the command was issued with the server prefix. */ |
e360902b | 898 | if (!confirm || server_command) |
981c7f5a DJ |
899 | return def_value; |
900 | ||
901 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 902 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
903 | way, important error messages don't get lost when talking to GDB |
904 | over a pipe. */ | |
268a799a | 905 | if (current_ui->instream != current_ui->stdin_stream |
26a06916 SM |
906 | || !input_interactive_p (current_ui) |
907 | /* Restrict queries to the main UI. */ | |
908 | || current_ui != main_ui) | |
981c7f5a | 909 | { |
223ffa71 TT |
910 | target_terminal::scoped_restore_terminal_state term_state; |
911 | target_terminal::ours_for_output (); | |
981c7f5a DJ |
912 | wrap_here (""); |
913 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
914 | ||
3e43a32a MS |
915 | printf_filtered (_("(%s or %s) [answered %c; " |
916 | "input not from terminal]\n"), | |
981c7f5a DJ |
917 | y_string, n_string, def_answer); |
918 | gdb_flush (gdb_stdout); | |
919 | ||
920 | return def_value; | |
921 | } | |
922 | ||
9a4105ab | 923 | if (deprecated_query_hook) |
cbdeadca | 924 | { |
223ffa71 TT |
925 | target_terminal::scoped_restore_terminal_state term_state; |
926 | return deprecated_query_hook (ctlstr, args); | |
651ce16a | 927 | } |
80dbc9fd | 928 | |
981c7f5a | 929 | /* Format the question outside of the loop, to avoid reusing args. */ |
e05550d7 TT |
930 | std::string question = string_vprintf (ctlstr, args); |
931 | std::string prompt | |
932 | = string_printf (_("%s%s(%s or %s) %s"), | |
933 | annotation_level > 1 ? "\n\032\032pre-query\n" : "", | |
934 | question.c_str (), y_string, n_string, | |
935 | annotation_level > 1 ? "\n\032\032query\n" : ""); | |
981c7f5a | 936 | |
dcb07cfa PA |
937 | /* Used to add duration we waited for user to respond to |
938 | prompt_for_continue_wait_time. */ | |
939 | using namespace std::chrono; | |
940 | steady_clock::time_point prompt_started = steady_clock::now (); | |
260c0b2a | 941 | |
223ffa71 | 942 | scoped_input_handler prepare_input; |
651ce16a | 943 | |
cbdeadca JJ |
944 | while (1) |
945 | { | |
588dcc3e | 946 | char *response, answer; |
cbdeadca | 947 | |
cbdeadca | 948 | gdb_flush (gdb_stdout); |
e05550d7 | 949 | response = gdb_readline_wrapper (prompt.c_str ()); |
cbdeadca | 950 | |
588dcc3e | 951 | if (response == NULL) /* C-d */ |
cbdeadca | 952 | { |
fa3fd85b | 953 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
954 | retval = def_value; |
955 | break; | |
956 | } | |
588dcc3e PP |
957 | |
958 | answer = response[0]; | |
959 | xfree (response); | |
cbdeadca JJ |
960 | |
961 | if (answer >= 'a') | |
962 | answer -= 040; | |
963 | /* Check answer. For the non-default, the user must specify | |
964 | the non-default explicitly. */ | |
965 | if (answer == not_def_answer) | |
966 | { | |
967 | retval = !def_value; | |
968 | break; | |
969 | } | |
981c7f5a DJ |
970 | /* Otherwise, if a default was specified, the user may either |
971 | specify the required input or have it default by entering | |
972 | nothing. */ | |
973 | if (answer == def_answer | |
588dcc3e | 974 | || (defchar != '\0' && answer == '\0')) |
cbdeadca JJ |
975 | { |
976 | retval = def_value; | |
977 | break; | |
978 | } | |
979 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 980 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
981 | y_string, n_string); |
982 | } | |
983 | ||
260c0b2a | 984 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
dcb07cfa | 985 | prompt_for_continue_wait_time += steady_clock::now () - prompt_started; |
260c0b2a | 986 | |
cbdeadca | 987 | if (annotation_level > 1) |
a3f17187 | 988 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
989 | return retval; |
990 | } | |
991 | \f | |
992 | ||
993 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
994 | answer is yes, or 0 if answer is defaulted. | |
995 | Takes three args which are given to printf to print the question. | |
996 | The first, a control string, should end in "? ". | |
997 | It should not say how to answer, because we do that. */ | |
998 | ||
999 | int | |
1000 | nquery (const char *ctlstr, ...) | |
1001 | { | |
1002 | va_list args; | |
899500d6 | 1003 | int ret; |
cbdeadca JJ |
1004 | |
1005 | va_start (args, ctlstr); | |
899500d6 | 1006 | ret = defaulted_query (ctlstr, 'n', args); |
cbdeadca | 1007 | va_end (args); |
899500d6 | 1008 | return ret; |
cbdeadca JJ |
1009 | } |
1010 | ||
1011 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1012 | answer is yes, or 1 if answer is defaulted. | |
1013 | Takes three args which are given to printf to print the question. | |
1014 | The first, a control string, should end in "? ". | |
1015 | It should not say how to answer, because we do that. */ | |
1016 | ||
1017 | int | |
1018 | yquery (const char *ctlstr, ...) | |
1019 | { | |
1020 | va_list args; | |
899500d6 | 1021 | int ret; |
cbdeadca JJ |
1022 | |
1023 | va_start (args, ctlstr); | |
899500d6 | 1024 | ret = defaulted_query (ctlstr, 'y', args); |
cbdeadca | 1025 | va_end (args); |
899500d6 | 1026 | return ret; |
cbdeadca JJ |
1027 | } |
1028 | ||
981c7f5a DJ |
1029 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
1030 | Takes three args which are given to printf to print the question. | |
1031 | The first, a control string, should end in "? ". | |
1032 | It should not say how to answer, because we do that. */ | |
1033 | ||
1034 | int | |
1035 | query (const char *ctlstr, ...) | |
1036 | { | |
1037 | va_list args; | |
899500d6 | 1038 | int ret; |
981c7f5a DJ |
1039 | |
1040 | va_start (args, ctlstr); | |
899500d6 | 1041 | ret = defaulted_query (ctlstr, '\0', args); |
981c7f5a | 1042 | va_end (args); |
899500d6 | 1043 | return ret; |
981c7f5a DJ |
1044 | } |
1045 | ||
6c7a06a3 TT |
1046 | /* A helper for parse_escape that converts a host character to a |
1047 | target character. C is the host character. If conversion is | |
1048 | possible, then the target character is stored in *TARGET_C and the | |
1049 | function returns 1. Otherwise, the function returns 0. */ | |
1050 | ||
1051 | static int | |
f870a310 | 1052 | host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c) |
234b45d4 | 1053 | { |
6c7a06a3 | 1054 | char the_char = c; |
6c7a06a3 | 1055 | int result = 0; |
234b45d4 | 1056 | |
8268c778 | 1057 | auto_obstack host_data; |
234b45d4 | 1058 | |
f870a310 | 1059 | convert_between_encodings (target_charset (gdbarch), host_charset (), |
ac91cd70 PA |
1060 | (gdb_byte *) &the_char, 1, 1, |
1061 | &host_data, translit_none); | |
6c7a06a3 TT |
1062 | |
1063 | if (obstack_object_size (&host_data) == 1) | |
1064 | { | |
1065 | result = 1; | |
1066 | *target_c = *(char *) obstack_base (&host_data); | |
1067 | } | |
1068 | ||
6c7a06a3 | 1069 | return result; |
234b45d4 KB |
1070 | } |
1071 | ||
c906108c SS |
1072 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1073 | containing a pointer to the string to parse. That pointer | |
1074 | should point to the character after the \. That pointer | |
1075 | is updated past the characters we use. The value of the | |
1076 | escape sequence is returned. | |
1077 | ||
1078 | A negative value means the sequence \ newline was seen, | |
1079 | which is supposed to be equivalent to nothing at all. | |
1080 | ||
1081 | If \ is followed by a null character, we return a negative | |
1082 | value and leave the string pointer pointing at the null character. | |
1083 | ||
1084 | If \ is followed by 000, we return 0 and leave the string pointer | |
1085 | after the zeros. A value of 0 does not mean end of string. */ | |
1086 | ||
1087 | int | |
d7561cbb | 1088 | parse_escape (struct gdbarch *gdbarch, const char **string_ptr) |
c906108c | 1089 | { |
581e13c1 | 1090 | int target_char = -2; /* Initialize to avoid GCC warnings. */ |
52f0bd74 | 1091 | int c = *(*string_ptr)++; |
e0627e85 | 1092 | |
6c7a06a3 TT |
1093 | switch (c) |
1094 | { | |
8731e58e AC |
1095 | case '\n': |
1096 | return -2; | |
1097 | case 0: | |
1098 | (*string_ptr)--; | |
1099 | return 0; | |
8731e58e AC |
1100 | |
1101 | case '0': | |
1102 | case '1': | |
1103 | case '2': | |
1104 | case '3': | |
1105 | case '4': | |
1106 | case '5': | |
1107 | case '6': | |
1108 | case '7': | |
1109 | { | |
6c7a06a3 | 1110 | int i = host_hex_value (c); |
aa1ee363 | 1111 | int count = 0; |
8731e58e AC |
1112 | while (++count < 3) |
1113 | { | |
5cb316ef | 1114 | c = (**string_ptr); |
6c7a06a3 | 1115 | if (isdigit (c) && c != '8' && c != '9') |
8731e58e | 1116 | { |
5cb316ef | 1117 | (*string_ptr)++; |
8731e58e | 1118 | i *= 8; |
6c7a06a3 | 1119 | i += host_hex_value (c); |
8731e58e AC |
1120 | } |
1121 | else | |
1122 | { | |
8731e58e AC |
1123 | break; |
1124 | } | |
1125 | } | |
1126 | return i; | |
1127 | } | |
6c7a06a3 TT |
1128 | |
1129 | case 'a': | |
1130 | c = '\a'; | |
1131 | break; | |
1132 | case 'b': | |
1133 | c = '\b'; | |
1134 | break; | |
1135 | case 'f': | |
1136 | c = '\f'; | |
1137 | break; | |
1138 | case 'n': | |
1139 | c = '\n'; | |
1140 | break; | |
1141 | case 'r': | |
1142 | c = '\r'; | |
1143 | break; | |
1144 | case 't': | |
1145 | c = '\t'; | |
1146 | break; | |
1147 | case 'v': | |
1148 | c = '\v'; | |
1149 | break; | |
1150 | ||
1151 | default: | |
1152 | break; | |
1153 | } | |
1154 | ||
f870a310 | 1155 | if (!host_char_to_target (gdbarch, c, &target_char)) |
3351ea09 JB |
1156 | error (_("The escape sequence `\\%c' is equivalent to plain `%c'," |
1157 | " which has no equivalent\nin the `%s' character set."), | |
905b671b | 1158 | c, c, target_charset (gdbarch)); |
6c7a06a3 | 1159 | return target_char; |
c906108c SS |
1160 | } |
1161 | \f | |
1162 | /* Print the character C on STREAM as part of the contents of a literal | |
1163 | string whose delimiter is QUOTER. Note that this routine should only | |
f9acce4a | 1164 | be called for printing things which are independent of the language |
6ef284bd SM |
1165 | of the program being debugged. |
1166 | ||
1167 | printchar will normally escape backslashes and instances of QUOTER. If | |
1168 | QUOTER is 0, printchar won't escape backslashes or any quoting character. | |
1169 | As a side effect, if you pass the backslash character as the QUOTER, | |
1170 | printchar will escape backslashes as usual, but not any other quoting | |
1171 | character. */ | |
c906108c | 1172 | |
43e526b9 | 1173 | static void |
7c4e78cf | 1174 | printchar (int c, do_fputc_ftype do_fputc, ui_file *stream, int quoter) |
c906108c | 1175 | { |
c906108c SS |
1176 | c &= 0xFF; /* Avoid sign bit follies */ |
1177 | ||
c5aa993b JM |
1178 | if (c < 0x20 || /* Low control chars */ |
1179 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1180 | (sevenbit_strings && c >= 0x80)) | |
1181 | { /* high order bit set */ | |
7c4e78cf SM |
1182 | do_fputc ('\\', stream); |
1183 | ||
c5aa993b JM |
1184 | switch (c) |
1185 | { | |
1186 | case '\n': | |
7c4e78cf | 1187 | do_fputc ('n', stream); |
c5aa993b JM |
1188 | break; |
1189 | case '\b': | |
7c4e78cf | 1190 | do_fputc ('b', stream); |
c5aa993b JM |
1191 | break; |
1192 | case '\t': | |
7c4e78cf | 1193 | do_fputc ('t', stream); |
c5aa993b JM |
1194 | break; |
1195 | case '\f': | |
7c4e78cf | 1196 | do_fputc ('f', stream); |
c5aa993b JM |
1197 | break; |
1198 | case '\r': | |
7c4e78cf | 1199 | do_fputc ('r', stream); |
c5aa993b JM |
1200 | break; |
1201 | case '\033': | |
7c4e78cf | 1202 | do_fputc ('e', stream); |
c5aa993b JM |
1203 | break; |
1204 | case '\007': | |
7c4e78cf | 1205 | do_fputc ('a', stream); |
c5aa993b JM |
1206 | break; |
1207 | default: | |
7c4e78cf SM |
1208 | { |
1209 | do_fputc ('0' + ((c >> 6) & 0x7), stream); | |
1210 | do_fputc ('0' + ((c >> 3) & 0x7), stream); | |
1211 | do_fputc ('0' + ((c >> 0) & 0x7), stream); | |
1212 | break; | |
1213 | } | |
c5aa993b JM |
1214 | } |
1215 | } | |
1216 | else | |
1217 | { | |
6ef284bd | 1218 | if (quoter != 0 && (c == '\\' || c == quoter)) |
7c4e78cf SM |
1219 | do_fputc ('\\', stream); |
1220 | do_fputc (c, stream); | |
c5aa993b | 1221 | } |
c906108c | 1222 | } |
43e526b9 JM |
1223 | |
1224 | /* Print the character C on STREAM as part of the contents of a | |
1225 | literal string whose delimiter is QUOTER. Note that these routines | |
1226 | should only be call for printing things which are independent of | |
581e13c1 | 1227 | the language of the program being debugged. */ |
43e526b9 JM |
1228 | |
1229 | void | |
fba45db2 | 1230 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1231 | { |
1232 | while (*str) | |
7c4e78cf | 1233 | printchar (*str++, fputc_filtered, stream, quoter); |
43e526b9 JM |
1234 | } |
1235 | ||
1236 | void | |
fba45db2 | 1237 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1238 | { |
1239 | while (*str) | |
7c4e78cf | 1240 | printchar (*str++, fputc_unfiltered, stream, quoter); |
43e526b9 JM |
1241 | } |
1242 | ||
0876f84a DJ |
1243 | void |
1244 | fputstrn_filtered (const char *str, int n, int quoter, | |
1245 | struct ui_file *stream) | |
1246 | { | |
7c4e78cf SM |
1247 | for (int i = 0; i < n; i++) |
1248 | printchar (str[i], fputc_filtered, stream, quoter); | |
0876f84a DJ |
1249 | } |
1250 | ||
43e526b9 | 1251 | void |
8731e58e | 1252 | fputstrn_unfiltered (const char *str, int n, int quoter, |
7c4e78cf | 1253 | do_fputc_ftype do_fputc, struct ui_file *stream) |
43e526b9 | 1254 | { |
7c4e78cf SM |
1255 | for (int i = 0; i < n; i++) |
1256 | printchar (str[i], do_fputc, stream, quoter); | |
43e526b9 | 1257 | } |
c906108c | 1258 | \f |
c5aa993b | 1259 | |
c906108c SS |
1260 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1261 | static unsigned int lines_per_page; | |
920d2a44 AC |
1262 | static void |
1263 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1264 | struct cmd_list_element *c, const char *value) | |
1265 | { | |
3e43a32a MS |
1266 | fprintf_filtered (file, |
1267 | _("Number of lines gdb thinks are in a page is %s.\n"), | |
920d2a44 AC |
1268 | value); |
1269 | } | |
eb0d3137 | 1270 | |
cbfbd72a | 1271 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1272 | static unsigned int chars_per_line; |
920d2a44 AC |
1273 | static void |
1274 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1275 | struct cmd_list_element *c, const char *value) | |
1276 | { | |
3e43a32a MS |
1277 | fprintf_filtered (file, |
1278 | _("Number of characters gdb thinks " | |
1279 | "are in a line is %s.\n"), | |
920d2a44 AC |
1280 | value); |
1281 | } | |
eb0d3137 | 1282 | |
c906108c SS |
1283 | /* Current count of lines printed on this page, chars on this line. */ |
1284 | static unsigned int lines_printed, chars_printed; | |
1285 | ||
eb6af809 TT |
1286 | /* True if pagination is disabled for just one command. */ |
1287 | ||
1288 | static bool pagination_disabled_for_command; | |
1289 | ||
c906108c SS |
1290 | /* Buffer and start column of buffered text, for doing smarter word- |
1291 | wrapping. When someone calls wrap_here(), we start buffering output | |
1292 | that comes through fputs_filtered(). If we see a newline, we just | |
1293 | spit it out and forget about the wrap_here(). If we see another | |
1294 | wrap_here(), we spit it out and remember the newer one. If we see | |
1295 | the end of the line, we spit out a newline, the indent, and then | |
1296 | the buffered output. */ | |
1297 | ||
1298 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1299 | are waiting to be output (they have already been counted in chars_printed). | |
1300 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1301 | static char *wrap_buffer; | |
1302 | ||
1303 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1304 | static char *wrap_pointer; | |
1305 | ||
1306 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1307 | is non-zero. */ | |
d2c0eef4 | 1308 | static const char *wrap_indent; |
c906108c SS |
1309 | |
1310 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1311 | is not in effect. */ | |
1312 | static int wrap_column; | |
c906108c | 1313 | \f |
c5aa993b | 1314 | |
26c4b26f | 1315 | /* Initialize the number of lines per page and chars per line. */ |
eb0d3137 | 1316 | |
c906108c | 1317 | void |
fba45db2 | 1318 | init_page_info (void) |
c906108c | 1319 | { |
5da1313b JK |
1320 | if (batch_flag) |
1321 | { | |
1322 | lines_per_page = UINT_MAX; | |
1323 | chars_per_line = UINT_MAX; | |
1324 | } | |
1325 | else | |
c906108c | 1326 | #if defined(TUI) |
5ecb1806 | 1327 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1328 | #endif |
1329 | { | |
eb0d3137 | 1330 | int rows, cols; |
c906108c | 1331 | |
ec145965 EZ |
1332 | #if defined(__GO32__) |
1333 | rows = ScreenRows (); | |
1334 | cols = ScreenCols (); | |
1335 | lines_per_page = rows; | |
1336 | chars_per_line = cols; | |
1337 | #else | |
eb0d3137 MK |
1338 | /* Make sure Readline has initialized its terminal settings. */ |
1339 | rl_reset_terminal (NULL); | |
c906108c | 1340 | |
eb0d3137 MK |
1341 | /* Get the screen size from Readline. */ |
1342 | rl_get_screen_size (&rows, &cols); | |
1343 | lines_per_page = rows; | |
1344 | chars_per_line = cols; | |
c906108c | 1345 | |
1a66331e PM |
1346 | /* Readline should have fetched the termcap entry for us. |
1347 | Only try to use tgetnum function if rl_get_screen_size | |
1348 | did not return a useful value. */ | |
a121b7c1 | 1349 | if (((rows <= 0) && (tgetnum ((char *) "li") < 0)) |
e681cf3f EZ |
1350 | /* Also disable paging if inside Emacs. $EMACS was used |
1351 | before Emacs v25.1, $INSIDE_EMACS is used since then. */ | |
1352 | || getenv ("EMACS") || getenv ("INSIDE_EMACS")) | |
eb0d3137 | 1353 | { |
1a66331e PM |
1354 | /* The number of lines per page is not mentioned in the terminal |
1355 | description or EMACS evironment variable is set. This probably | |
1356 | means that paging is not useful, so disable paging. */ | |
eb0d3137 MK |
1357 | lines_per_page = UINT_MAX; |
1358 | } | |
c906108c | 1359 | |
c906108c | 1360 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1361 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1362 | lines_per_page = UINT_MAX; |
eb0d3137 | 1363 | #endif |
ec145965 | 1364 | } |
eb0d3137 | 1365 | |
24b73f8e PP |
1366 | /* We handle SIGWINCH ourselves. */ |
1367 | rl_catch_sigwinch = 0; | |
1368 | ||
eb0d3137 | 1369 | set_screen_size (); |
c5aa993b | 1370 | set_width (); |
c906108c SS |
1371 | } |
1372 | ||
2437fd32 GB |
1373 | /* Return nonzero if filtered printing is initialized. */ |
1374 | int | |
1375 | filtered_printing_initialized (void) | |
1376 | { | |
1377 | return wrap_buffer != NULL; | |
1378 | } | |
1379 | ||
b95de2b7 TT |
1380 | set_batch_flag_and_restore_page_info::set_batch_flag_and_restore_page_info () |
1381 | : m_save_lines_per_page (lines_per_page), | |
1382 | m_save_chars_per_line (chars_per_line), | |
1383 | m_save_batch_flag (batch_flag) | |
5da1313b | 1384 | { |
b95de2b7 TT |
1385 | batch_flag = 1; |
1386 | init_page_info (); | |
5da1313b JK |
1387 | } |
1388 | ||
b95de2b7 | 1389 | set_batch_flag_and_restore_page_info::~set_batch_flag_and_restore_page_info () |
5da1313b | 1390 | { |
b95de2b7 TT |
1391 | batch_flag = m_save_batch_flag; |
1392 | chars_per_line = m_save_chars_per_line; | |
1393 | lines_per_page = m_save_lines_per_page; | |
5da1313b | 1394 | |
b95de2b7 TT |
1395 | set_screen_size (); |
1396 | set_width (); | |
5da1313b JK |
1397 | } |
1398 | ||
eb0d3137 MK |
1399 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1400 | ||
1401 | static void | |
1402 | set_screen_size (void) | |
1403 | { | |
1404 | int rows = lines_per_page; | |
1405 | int cols = chars_per_line; | |
1406 | ||
1407 | if (rows <= 0) | |
1408 | rows = INT_MAX; | |
1409 | ||
1410 | if (cols <= 0) | |
0caa462c | 1411 | cols = INT_MAX; |
eb0d3137 MK |
1412 | |
1413 | /* Update Readline's idea of the terminal size. */ | |
1414 | rl_set_screen_size (rows, cols); | |
1415 | } | |
1416 | ||
1417 | /* Reinitialize WRAP_BUFFER according to the current value of | |
1418 | CHARS_PER_LINE. */ | |
1419 | ||
c906108c | 1420 | static void |
fba45db2 | 1421 | set_width (void) |
c906108c SS |
1422 | { |
1423 | if (chars_per_line == 0) | |
c5aa993b | 1424 | init_page_info (); |
c906108c SS |
1425 | |
1426 | if (!wrap_buffer) | |
1427 | { | |
1428 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1429 | wrap_buffer[0] = '\0'; | |
1430 | } | |
1431 | else | |
1432 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 1433 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
1434 | } |
1435 | ||
c5aa993b | 1436 | static void |
eb4c3f4a | 1437 | set_width_command (const char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1438 | { |
eb0d3137 | 1439 | set_screen_size (); |
c906108c SS |
1440 | set_width (); |
1441 | } | |
1442 | ||
eb0d3137 | 1443 | static void |
eb4c3f4a | 1444 | set_height_command (const char *args, int from_tty, struct cmd_list_element *c) |
eb0d3137 MK |
1445 | { |
1446 | set_screen_size (); | |
1447 | } | |
1448 | ||
d6e5e7f7 PP |
1449 | /* See utils.h. */ |
1450 | ||
1451 | void | |
1452 | set_screen_width_and_height (int width, int height) | |
1453 | { | |
1454 | lines_per_page = height; | |
1455 | chars_per_line = width; | |
1456 | ||
1457 | set_screen_size (); | |
1458 | set_width (); | |
1459 | } | |
1460 | ||
c906108c | 1461 | /* Wait, so the user can read what's on the screen. Prompt the user |
720d2e96 PA |
1462 | to continue by pressing RETURN. 'q' is also provided because |
1463 | telling users what to do in the prompt is more user-friendly than | |
1464 | expecting them to think of Ctrl-C/SIGINT. */ | |
c906108c SS |
1465 | |
1466 | static void | |
fba45db2 | 1467 | prompt_for_continue (void) |
c906108c | 1468 | { |
c906108c | 1469 | char cont_prompt[120]; |
260c0b2a DE |
1470 | /* Used to add duration we waited for user to respond to |
1471 | prompt_for_continue_wait_time. */ | |
dcb07cfa PA |
1472 | using namespace std::chrono; |
1473 | steady_clock::time_point prompt_started = steady_clock::now (); | |
eb6af809 | 1474 | bool disable_pagination = pagination_disabled_for_command; |
c906108c SS |
1475 | |
1476 | if (annotation_level > 1) | |
a3f17187 | 1477 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
1478 | |
1479 | strcpy (cont_prompt, | |
eb6af809 TT |
1480 | "--Type <RET> for more, q to quit, " |
1481 | "c to continue without paging--"); | |
c906108c SS |
1482 | if (annotation_level > 1) |
1483 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1484 | ||
720d2e96 PA |
1485 | /* We must do this *before* we call gdb_readline_wrapper, else it |
1486 | will eventually call us -- thinking that we're trying to print | |
1487 | beyond the end of the screen. */ | |
c906108c SS |
1488 | reinitialize_more_filter (); |
1489 | ||
223ffa71 | 1490 | scoped_input_handler prepare_input; |
82584158 | 1491 | |
720d2e96 PA |
1492 | /* Call gdb_readline_wrapper, not readline, in order to keep an |
1493 | event loop running. */ | |
5aa89276 | 1494 | gdb::unique_xmalloc_ptr<char> ignore (gdb_readline_wrapper (cont_prompt)); |
c906108c | 1495 | |
260c0b2a | 1496 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
dcb07cfa | 1497 | prompt_for_continue_wait_time += steady_clock::now () - prompt_started; |
260c0b2a | 1498 | |
c906108c | 1499 | if (annotation_level > 1) |
a3f17187 | 1500 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c | 1501 | |
80dbc9fd | 1502 | if (ignore != NULL) |
c906108c | 1503 | { |
5aa89276 | 1504 | char *p = ignore.get (); |
5d502164 | 1505 | |
c906108c SS |
1506 | while (*p == ' ' || *p == '\t') |
1507 | ++p; | |
1508 | if (p[0] == 'q') | |
1690b616 SL |
1509 | /* Do not call quit here; there is no possibility of SIGINT. */ |
1510 | throw_quit ("Quit"); | |
eb6af809 TT |
1511 | if (p[0] == 'c') |
1512 | disable_pagination = true; | |
c906108c | 1513 | } |
c906108c SS |
1514 | |
1515 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1516 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1517 | reinitialize_more_filter (); | |
eb6af809 | 1518 | pagination_disabled_for_command = disable_pagination; |
c906108c | 1519 | |
581e13c1 | 1520 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ |
c906108c SS |
1521 | } |
1522 | ||
26c4b26f | 1523 | /* Initialize timer to keep track of how long we waited for the user. */ |
bd712aed DE |
1524 | |
1525 | void | |
1526 | reset_prompt_for_continue_wait_time (void) | |
1527 | { | |
dcb07cfa | 1528 | using namespace std::chrono; |
bd712aed | 1529 | |
dcb07cfa | 1530 | prompt_for_continue_wait_time = steady_clock::duration::zero (); |
bd712aed DE |
1531 | } |
1532 | ||
1533 | /* Fetch the cumulative time spent in prompt_for_continue. */ | |
1534 | ||
dcb07cfa PA |
1535 | std::chrono::steady_clock::duration |
1536 | get_prompt_for_continue_wait_time () | |
bd712aed DE |
1537 | { |
1538 | return prompt_for_continue_wait_time; | |
1539 | } | |
1540 | ||
c906108c SS |
1541 | /* Reinitialize filter; ie. tell it to reset to original values. */ |
1542 | ||
1543 | void | |
fba45db2 | 1544 | reinitialize_more_filter (void) |
c906108c SS |
1545 | { |
1546 | lines_printed = 0; | |
1547 | chars_printed = 0; | |
eb6af809 | 1548 | pagination_disabled_for_command = false; |
c906108c SS |
1549 | } |
1550 | ||
1551 | /* Indicate that if the next sequence of characters overflows the line, | |
581e13c1 | 1552 | a newline should be inserted here rather than when it hits the end. |
c906108c SS |
1553 | If INDENT is non-null, it is a string to be printed to indent the |
1554 | wrapped part on the next line. INDENT must remain accessible until | |
1555 | the next call to wrap_here() or until a newline is printed through | |
1556 | fputs_filtered(). | |
1557 | ||
1558 | If the line is already overfull, we immediately print a newline and | |
1559 | the indentation, and disable further wrapping. | |
1560 | ||
1561 | If we don't know the width of lines, but we know the page height, | |
1562 | we must not wrap words, but should still keep track of newlines | |
1563 | that were explicitly printed. | |
1564 | ||
1565 | INDENT should not contain tabs, as that will mess up the char count | |
1566 | on the next line. FIXME. | |
1567 | ||
1568 | This routine is guaranteed to force out any output which has been | |
1569 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1570 | used to force out output from the wrap_buffer. */ | |
1571 | ||
1572 | void | |
d2c0eef4 | 1573 | wrap_here (const char *indent) |
c906108c | 1574 | { |
581e13c1 | 1575 | /* This should have been allocated, but be paranoid anyway. */ |
c906108c | 1576 | if (!wrap_buffer) |
3e43a32a MS |
1577 | internal_error (__FILE__, __LINE__, |
1578 | _("failed internal consistency check")); | |
c906108c SS |
1579 | |
1580 | if (wrap_buffer[0]) | |
1581 | { | |
1582 | *wrap_pointer = '\0'; | |
1583 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1584 | } | |
1585 | wrap_pointer = wrap_buffer; | |
1586 | wrap_buffer[0] = '\0'; | |
3e43a32a | 1587 | if (chars_per_line == UINT_MAX) /* No line overflow checking. */ |
c906108c SS |
1588 | { |
1589 | wrap_column = 0; | |
1590 | } | |
1591 | else if (chars_printed >= chars_per_line) | |
1592 | { | |
1593 | puts_filtered ("\n"); | |
1594 | if (indent != NULL) | |
1595 | puts_filtered (indent); | |
1596 | wrap_column = 0; | |
1597 | } | |
1598 | else | |
1599 | { | |
1600 | wrap_column = chars_printed; | |
1601 | if (indent == NULL) | |
1602 | wrap_indent = ""; | |
1603 | else | |
1604 | wrap_indent = indent; | |
1605 | } | |
1606 | } | |
1607 | ||
4a351cef | 1608 | /* Print input string to gdb_stdout, filtered, with wrap, |
581e13c1 | 1609 | arranging strings in columns of n chars. String can be |
4a351cef AF |
1610 | right or left justified in the column. Never prints |
1611 | trailing spaces. String should never be longer than | |
1612 | width. FIXME: this could be useful for the EXAMINE | |
581e13c1 | 1613 | command, which currently doesn't tabulate very well. */ |
4a351cef AF |
1614 | |
1615 | void | |
1616 | puts_filtered_tabular (char *string, int width, int right) | |
1617 | { | |
1618 | int spaces = 0; | |
1619 | int stringlen; | |
1620 | char *spacebuf; | |
1621 | ||
1622 | gdb_assert (chars_per_line > 0); | |
1623 | if (chars_per_line == UINT_MAX) | |
1624 | { | |
1625 | fputs_filtered (string, gdb_stdout); | |
1626 | fputs_filtered ("\n", gdb_stdout); | |
1627 | return; | |
1628 | } | |
1629 | ||
1630 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
1631 | fputs_filtered ("\n", gdb_stdout); | |
1632 | ||
1633 | if (width >= chars_per_line) | |
1634 | width = chars_per_line - 1; | |
1635 | ||
1636 | stringlen = strlen (string); | |
1637 | ||
1638 | if (chars_printed > 0) | |
1639 | spaces = width - (chars_printed - 1) % width - 1; | |
1640 | if (right) | |
1641 | spaces += width - stringlen; | |
1642 | ||
224c3ddb | 1643 | spacebuf = (char *) alloca (spaces + 1); |
4a351cef AF |
1644 | spacebuf[spaces] = '\0'; |
1645 | while (spaces--) | |
1646 | spacebuf[spaces] = ' '; | |
1647 | ||
1648 | fputs_filtered (spacebuf, gdb_stdout); | |
1649 | fputs_filtered (string, gdb_stdout); | |
1650 | } | |
1651 | ||
1652 | ||
c906108c | 1653 | /* Ensure that whatever gets printed next, using the filtered output |
581e13c1 | 1654 | commands, starts at the beginning of the line. I.e. if there is |
c906108c | 1655 | any pending output for the current line, flush it and start a new |
581e13c1 | 1656 | line. Otherwise do nothing. */ |
c906108c SS |
1657 | |
1658 | void | |
fba45db2 | 1659 | begin_line (void) |
c906108c SS |
1660 | { |
1661 | if (chars_printed > 0) | |
1662 | { | |
1663 | puts_filtered ("\n"); | |
1664 | } | |
1665 | } | |
1666 | ||
ac9a91a7 | 1667 | |
c906108c SS |
1668 | /* Like fputs but if FILTER is true, pause after every screenful. |
1669 | ||
1670 | Regardless of FILTER can wrap at points other than the final | |
1671 | character of a line. | |
1672 | ||
1673 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
1674 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
1675 | anything. | |
1676 | ||
1677 | Note that a longjmp to top level may occur in this routine (only if | |
1678 | FILTER is true) (since prompt_for_continue may do so) so this | |
1679 | routine should not be called when cleanups are not in place. */ | |
1680 | ||
1681 | static void | |
fba45db2 KB |
1682 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
1683 | int filter) | |
c906108c SS |
1684 | { |
1685 | const char *lineptr; | |
1686 | ||
1687 | if (linebuffer == 0) | |
1688 | return; | |
1689 | ||
1690 | /* Don't do any filtering if it is disabled. */ | |
390a8aca | 1691 | if (stream != gdb_stdout |
b2e7f004 | 1692 | || !pagination_enabled |
eb6af809 | 1693 | || pagination_disabled_for_command |
b2e7f004 | 1694 | || batch_flag |
390a8aca | 1695 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) |
58dadb1b | 1696 | || top_level_interpreter () == NULL |
29f94340 | 1697 | || top_level_interpreter ()->interp_ui_out ()->is_mi_like_p ()) |
c906108c SS |
1698 | { |
1699 | fputs_unfiltered (linebuffer, stream); | |
1700 | return; | |
1701 | } | |
1702 | ||
1703 | /* Go through and output each character. Show line extension | |
1704 | when this is necessary; prompt user for new page when this is | |
1705 | necessary. */ | |
c5aa993b | 1706 | |
c906108c SS |
1707 | lineptr = linebuffer; |
1708 | while (*lineptr) | |
1709 | { | |
eb6af809 TT |
1710 | /* Possible new page. Note that PAGINATION_DISABLED_FOR_COMMAND |
1711 | might be set during this loop, so we must continue to check | |
1712 | it here. */ | |
1713 | if (filter && (lines_printed >= lines_per_page - 1) | |
1714 | && !pagination_disabled_for_command) | |
c906108c SS |
1715 | prompt_for_continue (); |
1716 | ||
1717 | while (*lineptr && *lineptr != '\n') | |
1718 | { | |
1719 | /* Print a single line. */ | |
1720 | if (*lineptr == '\t') | |
1721 | { | |
1722 | if (wrap_column) | |
1723 | *wrap_pointer++ = '\t'; | |
1724 | else | |
1725 | fputc_unfiltered ('\t', stream); | |
1726 | /* Shifting right by 3 produces the number of tab stops | |
1727 | we have already passed, and then adding one and | |
c5aa993b | 1728 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
1729 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
1730 | lineptr++; | |
1731 | } | |
1732 | else | |
1733 | { | |
1734 | if (wrap_column) | |
1735 | *wrap_pointer++ = *lineptr; | |
1736 | else | |
c5aa993b | 1737 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
1738 | chars_printed++; |
1739 | lineptr++; | |
1740 | } | |
c5aa993b | 1741 | |
c906108c SS |
1742 | if (chars_printed >= chars_per_line) |
1743 | { | |
1744 | unsigned int save_chars = chars_printed; | |
1745 | ||
1746 | chars_printed = 0; | |
1747 | lines_printed++; | |
1748 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
1749 | if chars_per_line is right, we probably just overflowed |
1750 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
1751 | if (wrap_column) |
1752 | fputc_unfiltered ('\n', stream); | |
1753 | ||
eb6af809 TT |
1754 | /* Possible new page. Note that |
1755 | PAGINATION_DISABLED_FOR_COMMAND might be set during | |
1756 | this loop, so we must continue to check it here. */ | |
1757 | if (lines_printed >= lines_per_page - 1 | |
1758 | && !pagination_disabled_for_command) | |
c906108c SS |
1759 | prompt_for_continue (); |
1760 | ||
581e13c1 | 1761 | /* Now output indentation and wrapped string. */ |
c906108c SS |
1762 | if (wrap_column) |
1763 | { | |
1764 | fputs_unfiltered (wrap_indent, stream); | |
581e13c1 MS |
1765 | *wrap_pointer = '\0'; /* Null-terminate saved stuff, */ |
1766 | fputs_unfiltered (wrap_buffer, stream); /* and eject it. */ | |
c906108c SS |
1767 | /* FIXME, this strlen is what prevents wrap_indent from |
1768 | containing tabs. However, if we recurse to print it | |
1769 | and count its chars, we risk trouble if wrap_indent is | |
581e13c1 | 1770 | longer than (the user settable) chars_per_line. |
c906108c SS |
1771 | Note also that this can set chars_printed > chars_per_line |
1772 | if we are printing a long string. */ | |
1773 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 1774 | + (save_chars - wrap_column); |
c906108c SS |
1775 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
1776 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
1777 | wrap_column = 0; /* And disable fancy wrap */ |
1778 | } | |
c906108c SS |
1779 | } |
1780 | } | |
1781 | ||
1782 | if (*lineptr == '\n') | |
1783 | { | |
1784 | chars_printed = 0; | |
3e43a32a MS |
1785 | wrap_here ((char *) 0); /* Spit out chars, cancel |
1786 | further wraps. */ | |
c906108c SS |
1787 | lines_printed++; |
1788 | fputc_unfiltered ('\n', stream); | |
1789 | lineptr++; | |
1790 | } | |
1791 | } | |
1792 | } | |
1793 | ||
1794 | void | |
fba45db2 | 1795 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
1796 | { |
1797 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1798 | } | |
1799 | ||
1800 | int | |
fba45db2 | 1801 | putchar_unfiltered (int c) |
c906108c | 1802 | { |
11cf8741 | 1803 | char buf = c; |
e0627e85 | 1804 | |
d9fcf2fb | 1805 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
1806 | return c; |
1807 | } | |
1808 | ||
d1f4cff8 AC |
1809 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
1810 | May return nonlocally. */ | |
1811 | ||
1812 | int | |
1813 | putchar_filtered (int c) | |
1814 | { | |
1815 | return fputc_filtered (c, gdb_stdout); | |
1816 | } | |
1817 | ||
c906108c | 1818 | int |
fba45db2 | 1819 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 1820 | { |
11cf8741 | 1821 | char buf = c; |
e0627e85 | 1822 | |
d9fcf2fb | 1823 | ui_file_write (stream, &buf, 1); |
c906108c SS |
1824 | return c; |
1825 | } | |
1826 | ||
1827 | int | |
fba45db2 | 1828 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
1829 | { |
1830 | char buf[2]; | |
1831 | ||
1832 | buf[0] = c; | |
1833 | buf[1] = 0; | |
1834 | fputs_filtered (buf, stream); | |
1835 | return c; | |
1836 | } | |
1837 | ||
1838 | /* puts_debug is like fputs_unfiltered, except it prints special | |
1839 | characters in printable fashion. */ | |
1840 | ||
1841 | void | |
fba45db2 | 1842 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
1843 | { |
1844 | int ch; | |
1845 | ||
1846 | /* Print prefix and suffix after each line. */ | |
1847 | static int new_line = 1; | |
1848 | static int return_p = 0; | |
a121b7c1 PA |
1849 | static const char *prev_prefix = ""; |
1850 | static const char *prev_suffix = ""; | |
c906108c SS |
1851 | |
1852 | if (*string == '\n') | |
1853 | return_p = 0; | |
1854 | ||
1855 | /* If the prefix is changing, print the previous suffix, a new line, | |
1856 | and the new prefix. */ | |
c5aa993b | 1857 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 1858 | { |
9846de1b JM |
1859 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
1860 | fputs_unfiltered ("\n", gdb_stdlog); | |
1861 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
1862 | } |
1863 | ||
1864 | /* Print prefix if we printed a newline during the previous call. */ | |
1865 | if (new_line) | |
1866 | { | |
1867 | new_line = 0; | |
9846de1b | 1868 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
1869 | } |
1870 | ||
1871 | prev_prefix = prefix; | |
1872 | prev_suffix = suffix; | |
1873 | ||
1874 | /* Output characters in a printable format. */ | |
1875 | while ((ch = *string++) != '\0') | |
1876 | { | |
1877 | switch (ch) | |
c5aa993b | 1878 | { |
c906108c SS |
1879 | default: |
1880 | if (isprint (ch)) | |
9846de1b | 1881 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
1882 | |
1883 | else | |
9846de1b | 1884 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
1885 | break; |
1886 | ||
c5aa993b JM |
1887 | case '\\': |
1888 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
1889 | break; | |
1890 | case '\b': | |
1891 | fputs_unfiltered ("\\b", gdb_stdlog); | |
1892 | break; | |
1893 | case '\f': | |
1894 | fputs_unfiltered ("\\f", gdb_stdlog); | |
1895 | break; | |
1896 | case '\n': | |
1897 | new_line = 1; | |
1898 | fputs_unfiltered ("\\n", gdb_stdlog); | |
1899 | break; | |
1900 | case '\r': | |
1901 | fputs_unfiltered ("\\r", gdb_stdlog); | |
1902 | break; | |
1903 | case '\t': | |
1904 | fputs_unfiltered ("\\t", gdb_stdlog); | |
1905 | break; | |
1906 | case '\v': | |
1907 | fputs_unfiltered ("\\v", gdb_stdlog); | |
1908 | break; | |
1909 | } | |
c906108c SS |
1910 | |
1911 | return_p = ch == '\r'; | |
1912 | } | |
1913 | ||
1914 | /* Print suffix if we printed a newline. */ | |
1915 | if (new_line) | |
1916 | { | |
9846de1b JM |
1917 | fputs_unfiltered (suffix, gdb_stdlog); |
1918 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
1919 | } |
1920 | } | |
1921 | ||
1922 | ||
1923 | /* Print a variable number of ARGS using format FORMAT. If this | |
1924 | information is going to put the amount written (since the last call | |
1925 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
1926 | call prompt_for_continue to get the users permision to continue. | |
1927 | ||
1928 | Unlike fprintf, this function does not return a value. | |
1929 | ||
1930 | We implement three variants, vfprintf (takes a vararg list and stream), | |
1931 | fprintf (takes a stream to write on), and printf (the usual). | |
1932 | ||
1933 | Note also that a longjmp to top level may occur in this routine | |
1934 | (since prompt_for_continue may do so) so this routine should not be | |
1935 | called when cleanups are not in place. */ | |
1936 | ||
1937 | static void | |
fba45db2 KB |
1938 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
1939 | va_list args, int filter) | |
c906108c | 1940 | { |
200aa7b1 TT |
1941 | std::string linebuffer = string_vprintf (format, args); |
1942 | fputs_maybe_filtered (linebuffer.c_str (), stream, filter); | |
c906108c SS |
1943 | } |
1944 | ||
1945 | ||
1946 | void | |
fba45db2 | 1947 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
1948 | { |
1949 | vfprintf_maybe_filtered (stream, format, args, 1); | |
1950 | } | |
1951 | ||
1952 | void | |
fba45db2 | 1953 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c | 1954 | { |
200aa7b1 | 1955 | std::string linebuffer = string_vprintf (format, args); |
75feb17d DJ |
1956 | if (debug_timestamp && stream == gdb_stdlog) |
1957 | { | |
dcb07cfa | 1958 | using namespace std::chrono; |
6e5abd65 | 1959 | int len, need_nl; |
75feb17d | 1960 | |
dcb07cfa PA |
1961 | steady_clock::time_point now = steady_clock::now (); |
1962 | seconds s = duration_cast<seconds> (now.time_since_epoch ()); | |
1963 | microseconds us = duration_cast<microseconds> (now.time_since_epoch () - s); | |
6e5abd65 | 1964 | |
200aa7b1 | 1965 | len = linebuffer.size (); |
6e5abd65 PA |
1966 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); |
1967 | ||
dcb07cfa PA |
1968 | std::string timestamp = string_printf ("%ld.%06ld %s%s", |
1969 | (long) s.count (), | |
1970 | (long) us.count (), | |
200aa7b1 TT |
1971 | linebuffer.c_str (), |
1972 | need_nl ? "\n": ""); | |
dcb07cfa | 1973 | fputs_unfiltered (timestamp.c_str (), stream); |
75feb17d | 1974 | } |
6e5abd65 | 1975 | else |
200aa7b1 | 1976 | fputs_unfiltered (linebuffer.c_str (), stream); |
c906108c SS |
1977 | } |
1978 | ||
1979 | void | |
fba45db2 | 1980 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
1981 | { |
1982 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
1983 | } | |
1984 | ||
1985 | void | |
fba45db2 | 1986 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
1987 | { |
1988 | vfprintf_unfiltered (gdb_stdout, format, args); | |
1989 | } | |
1990 | ||
c906108c | 1991 | void |
8731e58e | 1992 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
1993 | { |
1994 | va_list args; | |
e0627e85 | 1995 | |
c906108c | 1996 | va_start (args, format); |
c906108c SS |
1997 | vfprintf_filtered (stream, format, args); |
1998 | va_end (args); | |
1999 | } | |
2000 | ||
c906108c | 2001 | void |
8731e58e | 2002 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2003 | { |
2004 | va_list args; | |
e0627e85 | 2005 | |
c906108c | 2006 | va_start (args, format); |
c906108c SS |
2007 | vfprintf_unfiltered (stream, format, args); |
2008 | va_end (args); | |
2009 | } | |
2010 | ||
2011 | /* Like fprintf_filtered, but prints its result indented. | |
2012 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2013 | ||
c906108c | 2014 | void |
8731e58e AC |
2015 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2016 | ...) | |
c906108c SS |
2017 | { |
2018 | va_list args; | |
e0627e85 | 2019 | |
c906108c | 2020 | va_start (args, format); |
c906108c SS |
2021 | print_spaces_filtered (spaces, stream); |
2022 | ||
2023 | vfprintf_filtered (stream, format, args); | |
2024 | va_end (args); | |
2025 | } | |
2026 | ||
2027 | ||
c906108c | 2028 | void |
8731e58e | 2029 | printf_filtered (const char *format, ...) |
c906108c SS |
2030 | { |
2031 | va_list args; | |
e0627e85 | 2032 | |
c906108c | 2033 | va_start (args, format); |
c906108c SS |
2034 | vfprintf_filtered (gdb_stdout, format, args); |
2035 | va_end (args); | |
2036 | } | |
2037 | ||
2038 | ||
c906108c | 2039 | void |
8731e58e | 2040 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2041 | { |
2042 | va_list args; | |
e0627e85 | 2043 | |
c906108c | 2044 | va_start (args, format); |
c906108c SS |
2045 | vfprintf_unfiltered (gdb_stdout, format, args); |
2046 | va_end (args); | |
2047 | } | |
2048 | ||
2049 | /* Like printf_filtered, but prints it's result indented. | |
2050 | Called as printfi_filtered (spaces, format, ...); */ | |
2051 | ||
c906108c | 2052 | void |
8731e58e | 2053 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2054 | { |
2055 | va_list args; | |
e0627e85 | 2056 | |
c906108c | 2057 | va_start (args, format); |
c906108c SS |
2058 | print_spaces_filtered (spaces, gdb_stdout); |
2059 | vfprintf_filtered (gdb_stdout, format, args); | |
2060 | va_end (args); | |
2061 | } | |
2062 | ||
2063 | /* Easy -- but watch out! | |
2064 | ||
2065 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2066 | This one doesn't, and had better not! */ | |
2067 | ||
2068 | void | |
fba45db2 | 2069 | puts_filtered (const char *string) |
c906108c SS |
2070 | { |
2071 | fputs_filtered (string, gdb_stdout); | |
2072 | } | |
2073 | ||
2074 | void | |
fba45db2 | 2075 | puts_unfiltered (const char *string) |
c906108c SS |
2076 | { |
2077 | fputs_unfiltered (string, gdb_stdout); | |
2078 | } | |
2079 | ||
2080 | /* Return a pointer to N spaces and a null. The pointer is good | |
2081 | until the next call to here. */ | |
2082 | char * | |
fba45db2 | 2083 | n_spaces (int n) |
c906108c | 2084 | { |
392a587b JM |
2085 | char *t; |
2086 | static char *spaces = 0; | |
2087 | static int max_spaces = -1; | |
c906108c SS |
2088 | |
2089 | if (n > max_spaces) | |
2090 | { | |
2091 | if (spaces) | |
b8c9b27d | 2092 | xfree (spaces); |
c5aa993b JM |
2093 | spaces = (char *) xmalloc (n + 1); |
2094 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2095 | *--t = ' '; |
2096 | spaces[n] = '\0'; | |
2097 | max_spaces = n; | |
2098 | } | |
2099 | ||
2100 | return spaces + max_spaces - n; | |
2101 | } | |
2102 | ||
2103 | /* Print N spaces. */ | |
2104 | void | |
fba45db2 | 2105 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2106 | { |
2107 | fputs_filtered (n_spaces (n), stream); | |
2108 | } | |
2109 | \f | |
4a351cef | 2110 | /* C++/ObjC demangler stuff. */ |
c906108c | 2111 | |
389e51db AC |
2112 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2113 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2114 | If the name is not mangled, or the language for the name is unknown, or | |
581e13c1 | 2115 | demangling is off, the name is printed in its "raw" form. */ |
c906108c SS |
2116 | |
2117 | void | |
0d5cff50 | 2118 | fprintf_symbol_filtered (struct ui_file *stream, const char *name, |
8731e58e | 2119 | enum language lang, int arg_mode) |
c906108c SS |
2120 | { |
2121 | char *demangled; | |
2122 | ||
2123 | if (name != NULL) | |
2124 | { | |
2125 | /* If user wants to see raw output, no problem. */ | |
2126 | if (!demangle) | |
2127 | { | |
2128 | fputs_filtered (name, stream); | |
2129 | } | |
2130 | else | |
2131 | { | |
9a3d7dfd | 2132 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2133 | fputs_filtered (demangled ? demangled : name, stream); |
2134 | if (demangled != NULL) | |
2135 | { | |
b8c9b27d | 2136 | xfree (demangled); |
c906108c SS |
2137 | } |
2138 | } | |
2139 | } | |
2140 | } | |
2141 | ||
0662b6a7 PA |
2142 | /* True if CH is a character that can be part of a symbol name. I.e., |
2143 | either a number, a letter, or a '_'. */ | |
2144 | ||
2145 | static bool | |
2146 | valid_identifier_name_char (int ch) | |
2147 | { | |
2148 | return (isalnum (ch) || ch == '_'); | |
2149 | } | |
2150 | ||
2151 | /* Skip to end of token, or to END, whatever comes first. Input is | |
2152 | assumed to be a C++ operator name. */ | |
2153 | ||
2154 | static const char * | |
2155 | cp_skip_operator_token (const char *token, const char *end) | |
2156 | { | |
2157 | const char *p = token; | |
2158 | while (p != end && !isspace (*p) && *p != '(') | |
2159 | { | |
2160 | if (valid_identifier_name_char (*p)) | |
2161 | { | |
2162 | while (p != end && valid_identifier_name_char (*p)) | |
2163 | p++; | |
2164 | return p; | |
2165 | } | |
2166 | else | |
2167 | { | |
2168 | /* Note, ordered such that among ops that share a prefix, | |
2169 | longer comes first. This is so that the loop below can | |
2170 | bail on first match. */ | |
2171 | static const char *ops[] = | |
2172 | { | |
2173 | "[", | |
2174 | "]", | |
2175 | "~", | |
2176 | ",", | |
2177 | "-=", "--", "->", "-", | |
2178 | "+=", "++", "+", | |
2179 | "*=", "*", | |
2180 | "/=", "/", | |
2181 | "%=", "%", | |
2182 | "|=", "||", "|", | |
2183 | "&=", "&&", "&", | |
2184 | "^=", "^", | |
2185 | "!=", "!", | |
2186 | "<<=", "<=", "<<", "<", | |
2187 | ">>=", ">=", ">>", ">", | |
2188 | "==", "=", | |
2189 | }; | |
2190 | ||
2191 | for (const char *op : ops) | |
2192 | { | |
2193 | size_t oplen = strlen (op); | |
2194 | size_t lencmp = std::min<size_t> (oplen, end - p); | |
2195 | ||
2196 | if (strncmp (p, op, lencmp) == 0) | |
2197 | return p + lencmp; | |
2198 | } | |
2199 | /* Some unidentified character. Return it. */ | |
2200 | return p + 1; | |
2201 | } | |
2202 | } | |
2203 | ||
2204 | return p; | |
2205 | } | |
2206 | ||
2207 | /* Advance STRING1/STRING2 past whitespace. */ | |
2208 | ||
2209 | static void | |
2210 | skip_ws (const char *&string1, const char *&string2, const char *end_str2) | |
2211 | { | |
2212 | while (isspace (*string1)) | |
2213 | string1++; | |
2214 | while (string2 < end_str2 && isspace (*string2)) | |
2215 | string2++; | |
2216 | } | |
2217 | ||
2218 | /* True if STRING points at the start of a C++ operator name. START | |
2219 | is the start of the string that STRING points to, hence when | |
2220 | reading backwards, we must not read any character before START. */ | |
2221 | ||
2222 | static bool | |
2223 | cp_is_operator (const char *string, const char *start) | |
2224 | { | |
2225 | return ((string == start | |
2226 | || !valid_identifier_name_char (string[-1])) | |
2227 | && strncmp (string, CP_OPERATOR_STR, CP_OPERATOR_LEN) == 0 | |
2228 | && !valid_identifier_name_char (string[CP_OPERATOR_LEN])); | |
2229 | } | |
2230 | ||
bd69330d PA |
2231 | /* If *NAME points at an ABI tag, skip it and return true. Otherwise |
2232 | leave *NAME unmodified and return false. (see GCC's abi_tag | |
2233 | attribute), such names are demangled as e.g., | |
2234 | "function[abi:cxx11]()". */ | |
2235 | ||
2236 | static bool | |
2237 | skip_abi_tag (const char **name) | |
2238 | { | |
2239 | const char *p = *name; | |
2240 | ||
2241 | if (startswith (p, "[abi:")) | |
2242 | { | |
2243 | p += 5; | |
2244 | ||
2245 | while (valid_identifier_name_char (*p)) | |
2246 | p++; | |
2247 | ||
2248 | if (*p == ']') | |
2249 | { | |
2250 | p++; | |
2251 | *name = p; | |
2252 | return true; | |
2253 | } | |
2254 | } | |
2255 | return false; | |
2256 | } | |
2257 | ||
b5ec771e | 2258 | /* See utils.h. */ |
1d550c82 | 2259 | |
b5ec771e | 2260 | int |
1d550c82 | 2261 | strncmp_iw_with_mode (const char *string1, const char *string2, |
0662b6a7 | 2262 | size_t string2_len, strncmp_iw_mode mode, |
bd69330d PA |
2263 | enum language language, |
2264 | completion_match_for_lcd *match_for_lcd) | |
c906108c | 2265 | { |
0662b6a7 | 2266 | const char *string1_start = string1; |
1d550c82 | 2267 | const char *end_str2 = string2 + string2_len; |
0662b6a7 PA |
2268 | bool skip_spaces = true; |
2269 | bool have_colon_op = (language == language_cplus | |
2270 | || language == language_rust | |
2271 | || language == language_fortran); | |
1d550c82 PA |
2272 | |
2273 | while (1) | |
c906108c | 2274 | { |
0662b6a7 PA |
2275 | if (skip_spaces |
2276 | || ((isspace (*string1) && !valid_identifier_name_char (*string2)) | |
2277 | || (isspace (*string2) && !valid_identifier_name_char (*string1)))) | |
2278 | { | |
2279 | skip_ws (string1, string2, end_str2); | |
2280 | skip_spaces = false; | |
2281 | } | |
2282 | ||
bd69330d PA |
2283 | /* Skip [abi:cxx11] tags in the symbol name if the lookup name |
2284 | doesn't include them. E.g.: | |
2285 | ||
2286 | string1: function[abi:cxx1](int) | |
2287 | string2: function | |
2288 | ||
2289 | string1: function[abi:cxx1](int) | |
2290 | string2: function(int) | |
2291 | ||
2292 | string1: Struct[abi:cxx1]::function() | |
2293 | string2: Struct::function() | |
2294 | ||
2295 | string1: function(Struct[abi:cxx1], int) | |
2296 | string2: function(Struct, int) | |
2297 | */ | |
2298 | if (string2 == end_str2 | |
2299 | || (*string2 != '[' && !valid_identifier_name_char (*string2))) | |
2300 | { | |
2301 | const char *abi_start = string1; | |
2302 | ||
2303 | /* There can be more than one tag. */ | |
2304 | while (*string1 == '[' && skip_abi_tag (&string1)) | |
2305 | ; | |
2306 | ||
2307 | if (match_for_lcd != NULL && abi_start != string1) | |
2308 | match_for_lcd->mark_ignored_range (abi_start, string1); | |
2309 | ||
2310 | while (isspace (*string1)) | |
2311 | string1++; | |
2312 | } | |
2313 | ||
1d550c82 PA |
2314 | if (*string1 == '\0' || string2 == end_str2) |
2315 | break; | |
0662b6a7 PA |
2316 | |
2317 | /* Handle the :: operator. */ | |
2318 | if (have_colon_op && string1[0] == ':' && string1[1] == ':') | |
2319 | { | |
2320 | if (*string2 != ':') | |
2321 | return 1; | |
2322 | ||
2323 | string1++; | |
2324 | string2++; | |
2325 | ||
2326 | if (string2 == end_str2) | |
2327 | break; | |
2328 | ||
2329 | if (*string2 != ':') | |
2330 | return 1; | |
2331 | ||
2332 | string1++; | |
2333 | string2++; | |
2334 | ||
2335 | while (isspace (*string1)) | |
2336 | string1++; | |
2337 | while (string2 < end_str2 && isspace (*string2)) | |
2338 | string2++; | |
2339 | continue; | |
2340 | } | |
2341 | ||
2342 | /* Handle C++ user-defined operators. */ | |
2343 | else if (language == language_cplus | |
2344 | && *string1 == 'o') | |
2345 | { | |
2346 | if (cp_is_operator (string1, string1_start)) | |
2347 | { | |
2348 | /* An operator name in STRING1. Check STRING2. */ | |
2349 | size_t cmplen | |
2350 | = std::min<size_t> (CP_OPERATOR_LEN, end_str2 - string2); | |
2351 | if (strncmp (string1, string2, cmplen) != 0) | |
2352 | return 1; | |
2353 | ||
2354 | string1 += cmplen; | |
2355 | string2 += cmplen; | |
2356 | ||
2357 | if (string2 != end_str2) | |
2358 | { | |
2359 | /* Check for "operatorX" in STRING2. */ | |
2360 | if (valid_identifier_name_char (*string2)) | |
2361 | return 1; | |
2362 | ||
2363 | skip_ws (string1, string2, end_str2); | |
2364 | } | |
2365 | ||
2366 | /* Handle operator(). */ | |
2367 | if (*string1 == '(') | |
2368 | { | |
2369 | if (string2 == end_str2) | |
2370 | { | |
2371 | if (mode == strncmp_iw_mode::NORMAL) | |
2372 | return 0; | |
2373 | else | |
2374 | { | |
2375 | /* Don't break for the regular return at the | |
2376 | bottom, because "operator" should not | |
2377 | match "operator()", since this open | |
2378 | parentheses is not the parameter list | |
2379 | start. */ | |
2380 | return *string1 != '\0'; | |
2381 | } | |
2382 | } | |
2383 | ||
2384 | if (*string1 != *string2) | |
2385 | return 1; | |
2386 | ||
2387 | string1++; | |
2388 | string2++; | |
2389 | } | |
2390 | ||
2391 | while (1) | |
2392 | { | |
2393 | skip_ws (string1, string2, end_str2); | |
2394 | ||
2395 | /* Skip to end of token, or to END, whatever comes | |
2396 | first. */ | |
2397 | const char *end_str1 = string1 + strlen (string1); | |
2398 | const char *p1 = cp_skip_operator_token (string1, end_str1); | |
2399 | const char *p2 = cp_skip_operator_token (string2, end_str2); | |
2400 | ||
2401 | cmplen = std::min (p1 - string1, p2 - string2); | |
2402 | if (p2 == end_str2) | |
2403 | { | |
2404 | if (strncmp (string1, string2, cmplen) != 0) | |
2405 | return 1; | |
2406 | } | |
2407 | else | |
2408 | { | |
2409 | if (p1 - string1 != p2 - string2) | |
2410 | return 1; | |
2411 | if (strncmp (string1, string2, cmplen) != 0) | |
2412 | return 1; | |
2413 | } | |
2414 | ||
2415 | string1 += cmplen; | |
2416 | string2 += cmplen; | |
2417 | ||
2418 | if (*string1 == '\0' || string2 == end_str2) | |
2419 | break; | |
2420 | if (*string1 == '(' || *string2 == '(') | |
2421 | break; | |
2422 | } | |
2423 | ||
2424 | continue; | |
2425 | } | |
2426 | } | |
2427 | ||
559a7a62 JK |
2428 | if (case_sensitivity == case_sensitive_on && *string1 != *string2) |
2429 | break; | |
2430 | if (case_sensitivity == case_sensitive_off | |
2431 | && (tolower ((unsigned char) *string1) | |
2432 | != tolower ((unsigned char) *string2))) | |
2433 | break; | |
1d550c82 | 2434 | |
0662b6a7 PA |
2435 | /* If we see any non-whitespace, non-identifier-name character |
2436 | (any of "()<>*&" etc.), then skip spaces the next time | |
2437 | around. */ | |
2438 | if (!isspace (*string1) && !valid_identifier_name_char (*string1)) | |
2439 | skip_spaces = true; | |
2440 | ||
1d550c82 PA |
2441 | string1++; |
2442 | string2++; | |
c906108c | 2443 | } |
1d550c82 PA |
2444 | |
2445 | if (string2 == end_str2) | |
2446 | { | |
2447 | if (mode == strncmp_iw_mode::NORMAL) | |
bd69330d PA |
2448 | { |
2449 | /* Strip abi tag markers from the matched symbol name. | |
2450 | Usually the ABI marker will be found on function name | |
2451 | (automatically added because the function returns an | |
2452 | object marked with an ABI tag). However, it's also | |
2453 | possible to see a marker in one of the function | |
2454 | parameters, for example. | |
2455 | ||
2456 | string2 (lookup name): | |
2457 | func | |
2458 | symbol name: | |
2459 | function(some_struct[abi:cxx11], int) | |
2460 | ||
2461 | and for completion LCD computation we want to say that | |
2462 | the match was for: | |
2463 | function(some_struct, int) | |
2464 | */ | |
2465 | if (match_for_lcd != NULL) | |
2466 | { | |
2467 | while ((string1 = strstr (string1, "[abi:")) != NULL) | |
2468 | { | |
2469 | const char *abi_start = string1; | |
2470 | ||
2471 | /* There can be more than one tag. */ | |
2472 | while (skip_abi_tag (&string1) && *string1 == '[') | |
2473 | ; | |
2474 | ||
2475 | if (abi_start != string1) | |
2476 | match_for_lcd->mark_ignored_range (abi_start, string1); | |
2477 | } | |
2478 | } | |
2479 | ||
2480 | return 0; | |
2481 | } | |
1d550c82 PA |
2482 | else |
2483 | return (*string1 != '\0' && *string1 != '('); | |
2484 | } | |
2485 | else | |
2486 | return 1; | |
2487 | } | |
2488 | ||
2489 | /* See utils.h. */ | |
2490 | ||
2491 | int | |
2492 | strncmp_iw (const char *string1, const char *string2, size_t string2_len) | |
2493 | { | |
2494 | return strncmp_iw_with_mode (string1, string2, string2_len, | |
0662b6a7 | 2495 | strncmp_iw_mode::NORMAL, language_minimal); |
1d550c82 PA |
2496 | } |
2497 | ||
2498 | /* See utils.h. */ | |
2499 | ||
2500 | int | |
2501 | strcmp_iw (const char *string1, const char *string2) | |
2502 | { | |
2503 | return strncmp_iw_with_mode (string1, string2, strlen (string2), | |
0662b6a7 | 2504 | strncmp_iw_mode::MATCH_PARAMS, language_minimal); |
c906108c | 2505 | } |
2de7ced7 | 2506 | |
0fe19209 DC |
2507 | /* This is like strcmp except that it ignores whitespace and treats |
2508 | '(' as the first non-NULL character in terms of ordering. Like | |
2509 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2510 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2511 | according to that ordering. | |
2512 | ||
2513 | If a list is sorted according to this function and if you want to | |
2514 | find names in the list that match some fixed NAME according to | |
2515 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2516 | where this function would put NAME. | |
2517 | ||
559a7a62 JK |
2518 | This function must be neutral to the CASE_SENSITIVITY setting as the user |
2519 | may choose it during later lookup. Therefore this function always sorts | |
2520 | primarily case-insensitively and secondarily case-sensitively. | |
2521 | ||
0fe19209 DC |
2522 | Here are some examples of why using strcmp to sort is a bad idea: |
2523 | ||
2524 | Whitespace example: | |
2525 | ||
2526 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2527 | we try to do a search for "foo<char*>", strcmp will locate this | |
2528 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2529 | will start looking at strings beginning with "goo", and will never | |
2530 | see the correct match of "foo<char *>". | |
2531 | ||
2532 | Parenthesis example: | |
2533 | ||
2534 | In practice, this is less like to be an issue, but I'll give it a | |
2535 | shot. Let's assume that '$' is a legitimate character to occur in | |
2536 | symbols. (Which may well even be the case on some systems.) Then | |
2537 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2538 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2539 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2540 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2541 | "foo") is false, so it won't proceed to the actual match of | |
2542 | "foo(int)" with "foo". */ | |
2543 | ||
2544 | int | |
2545 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2546 | { | |
559a7a62 JK |
2547 | const char *saved_string1 = string1, *saved_string2 = string2; |
2548 | enum case_sensitivity case_pass = case_sensitive_off; | |
2549 | ||
2550 | for (;;) | |
0fe19209 | 2551 | { |
b11b1f88 JK |
2552 | /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'. |
2553 | Provide stub characters if we are already at the end of one of the | |
2554 | strings. */ | |
2555 | char c1 = 'X', c2 = 'X'; | |
2556 | ||
2557 | while (*string1 != '\0' && *string2 != '\0') | |
0fe19209 | 2558 | { |
b11b1f88 JK |
2559 | while (isspace (*string1)) |
2560 | string1++; | |
2561 | while (isspace (*string2)) | |
2562 | string2++; | |
2563 | ||
559a7a62 JK |
2564 | switch (case_pass) |
2565 | { | |
2566 | case case_sensitive_off: | |
2567 | c1 = tolower ((unsigned char) *string1); | |
2568 | c2 = tolower ((unsigned char) *string2); | |
2569 | break; | |
2570 | case case_sensitive_on: | |
b11b1f88 JK |
2571 | c1 = *string1; |
2572 | c2 = *string2; | |
559a7a62 JK |
2573 | break; |
2574 | } | |
b11b1f88 JK |
2575 | if (c1 != c2) |
2576 | break; | |
2577 | ||
2578 | if (*string1 != '\0') | |
2579 | { | |
2580 | string1++; | |
2581 | string2++; | |
2582 | } | |
0fe19209 | 2583 | } |
b11b1f88 JK |
2584 | |
2585 | switch (*string1) | |
0fe19209 | 2586 | { |
b11b1f88 JK |
2587 | /* Characters are non-equal unless they're both '\0'; we want to |
2588 | make sure we get the comparison right according to our | |
2589 | comparison in the cases where one of them is '\0' or '('. */ | |
2590 | case '\0': | |
2591 | if (*string2 == '\0') | |
559a7a62 | 2592 | break; |
b11b1f88 JK |
2593 | else |
2594 | return -1; | |
2595 | case '(': | |
2596 | if (*string2 == '\0') | |
2597 | return 1; | |
2598 | else | |
2599 | return -1; | |
2600 | default: | |
2601 | if (*string2 == '\0' || *string2 == '(') | |
2602 | return 1; | |
559a7a62 JK |
2603 | else if (c1 > c2) |
2604 | return 1; | |
2605 | else if (c1 < c2) | |
2606 | return -1; | |
2607 | /* PASSTHRU */ | |
0fe19209 | 2608 | } |
559a7a62 JK |
2609 | |
2610 | if (case_pass == case_sensitive_on) | |
2611 | return 0; | |
2612 | ||
2613 | /* Otherwise the strings were equal in case insensitive way, make | |
2614 | a more fine grained comparison in a case sensitive way. */ | |
2615 | ||
2616 | case_pass = case_sensitive_on; | |
2617 | string1 = saved_string1; | |
2618 | string2 = saved_string2; | |
0fe19209 | 2619 | } |
0fe19209 DC |
2620 | } |
2621 | ||
459a2e4c | 2622 | /* See utils.h. */ |
2de7ced7 | 2623 | |
459a2e4c | 2624 | bool |
2de7ced7 DJ |
2625 | streq (const char *lhs, const char *rhs) |
2626 | { | |
2627 | return !strcmp (lhs, rhs); | |
2628 | } | |
459a2e4c TT |
2629 | |
2630 | /* See utils.h. */ | |
2631 | ||
2632 | int | |
2633 | streq_hash (const void *lhs, const void *rhs) | |
2634 | { | |
2635 | return streq ((const char *) lhs, (const char *) rhs); | |
2636 | } | |
2637 | ||
c906108c | 2638 | \f |
c5aa993b | 2639 | |
c906108c | 2640 | /* |
c5aa993b JM |
2641 | ** subset_compare() |
2642 | ** Answer whether string_to_compare is a full or partial match to | |
2643 | ** template_string. The partial match must be in sequence starting | |
2644 | ** at index 0. | |
2645 | */ | |
c906108c | 2646 | int |
a121b7c1 | 2647 | subset_compare (const char *string_to_compare, const char *template_string) |
7a292a7a SS |
2648 | { |
2649 | int match; | |
e0627e85 | 2650 | |
8731e58e AC |
2651 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
2652 | && strlen (string_to_compare) <= strlen (template_string)) | |
2653 | match = | |
61012eef | 2654 | (startswith (template_string, string_to_compare)); |
7a292a7a SS |
2655 | else |
2656 | match = 0; | |
2657 | return match; | |
2658 | } | |
c906108c | 2659 | |
75feb17d DJ |
2660 | static void |
2661 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
2662 | struct cmd_list_element *c, const char *value) | |
2663 | { | |
3e43a32a MS |
2664 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), |
2665 | value); | |
75feb17d | 2666 | } |
c906108c | 2667 | \f |
c5aa993b | 2668 | |
c906108c | 2669 | void |
fba45db2 | 2670 | initialize_utils (void) |
c906108c | 2671 | { |
35096d9d | 2672 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
77dec115 EZ |
2673 | Set number of characters where GDB should wrap lines of its output."), _("\ |
2674 | Show number of characters where GDB should wrap lines of its output."), _("\ | |
2675 | This affects where GDB wraps its output to fit the screen width.\n\ | |
f81d1120 | 2676 | Setting this to \"unlimited\" or zero prevents GDB from wrapping its output."), |
35096d9d | 2677 | set_width_command, |
920d2a44 | 2678 | show_chars_per_line, |
35096d9d AC |
2679 | &setlist, &showlist); |
2680 | ||
2681 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
77dec115 EZ |
2682 | Set number of lines in a page for GDB output pagination."), _("\ |
2683 | Show number of lines in a page for GDB output pagination."), _("\ | |
2684 | This affects the number of lines after which GDB will pause\n\ | |
2685 | its output and ask you whether to continue.\n\ | |
f81d1120 | 2686 | Setting this to \"unlimited\" or zero causes GDB never pause during output."), |
35096d9d | 2687 | set_height_command, |
920d2a44 | 2688 | show_lines_per_page, |
35096d9d | 2689 | &setlist, &showlist); |
c5aa993b | 2690 | |
5bf193a2 AC |
2691 | add_setshow_boolean_cmd ("pagination", class_support, |
2692 | &pagination_enabled, _("\ | |
77dec115 EZ |
2693 | Set state of GDB output pagination."), _("\ |
2694 | Show state of GDB output pagination."), _("\ | |
2695 | When pagination is ON, GDB pauses at end of each screenful of\n\ | |
2696 | its output and asks you whether to continue.\n\ | |
f81d1120 | 2697 | Turning pagination off is an alternative to \"set height unlimited\"."), |
5bf193a2 | 2698 | NULL, |
920d2a44 | 2699 | show_pagination_enabled, |
5bf193a2 | 2700 | &setlist, &showlist); |
4261bedc | 2701 | |
5bf193a2 AC |
2702 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, |
2703 | &sevenbit_strings, _("\ | |
2704 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
2705 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
2706 | NULL, | |
920d2a44 | 2707 | show_sevenbit_strings, |
5bf193a2 AC |
2708 | &setprintlist, &showprintlist); |
2709 | ||
75feb17d DJ |
2710 | add_setshow_boolean_cmd ("timestamp", class_maintenance, |
2711 | &debug_timestamp, _("\ | |
2712 | Set timestamping of debugging messages."), _("\ | |
2713 | Show timestamping of debugging messages."), _("\ | |
2714 | When set, debugging messages will be marked with seconds and microseconds."), | |
2715 | NULL, | |
2716 | show_debug_timestamp, | |
2717 | &setdebuglist, &showdebuglist); | |
c906108c SS |
2718 | } |
2719 | ||
a738ea1d YQ |
2720 | /* See utils.h. */ |
2721 | ||
2722 | CORE_ADDR | |
2723 | address_significant (gdbarch *gdbarch, CORE_ADDR addr) | |
2724 | { | |
8727de56 OJ |
2725 | /* Clear insignificant bits of a target address and sign extend resulting |
2726 | address, avoiding shifts larger or equal than the width of a CORE_ADDR. | |
2727 | The local variable ADDR_BIT stops the compiler reporting a shift overflow | |
5969f0db OJ |
2728 | when it won't occur. Skip updating of target address if current target |
2729 | has not set gdbarch significant_addr_bit. */ | |
a738ea1d YQ |
2730 | int addr_bit = gdbarch_significant_addr_bit (gdbarch); |
2731 | ||
5969f0db | 2732 | if (addr_bit && (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))) |
8727de56 OJ |
2733 | { |
2734 | CORE_ADDR sign = (CORE_ADDR) 1 << (addr_bit - 1); | |
2735 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2736 | addr = (addr ^ sign) - sign; | |
2737 | } | |
a738ea1d YQ |
2738 | |
2739 | return addr; | |
2740 | } | |
2741 | ||
66bf4b3a | 2742 | const char * |
5af949e3 | 2743 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
2744 | { |
2745 | /* Truncate address to the size of a target address, avoiding shifts | |
2746 | larger or equal than the width of a CORE_ADDR. The local | |
2747 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
581e13c1 | 2748 | when it won't occur. */ |
66bf4b3a AC |
2749 | /* NOTE: This assumes that the significant address information is |
2750 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2751 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2752 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2753 | ||
5af949e3 | 2754 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
2755 | |
2756 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2757 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2758 | return hex_string (addr); | |
2759 | } | |
2760 | ||
f1310107 TJB |
2761 | /* This function is described in "defs.h". */ |
2762 | ||
2763 | const char * | |
2764 | print_core_address (struct gdbarch *gdbarch, CORE_ADDR address) | |
2765 | { | |
2766 | int addr_bit = gdbarch_addr_bit (gdbarch); | |
2767 | ||
2768 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2769 | address &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2770 | ||
2771 | /* FIXME: cagney/2002-05-03: Need local_address_string() function | |
2772 | that returns the language localized string formatted to a width | |
2773 | based on gdbarch_addr_bit. */ | |
2774 | if (addr_bit <= 32) | |
2775 | return hex_string_custom (address, 8); | |
2776 | else | |
2777 | return hex_string_custom (address, 16); | |
2778 | } | |
2779 | ||
8e3b41a9 JK |
2780 | /* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */ |
2781 | ||
2782 | hashval_t | |
2783 | core_addr_hash (const void *ap) | |
2784 | { | |
19ba03f4 | 2785 | const CORE_ADDR *addrp = (const CORE_ADDR *) ap; |
8e3b41a9 JK |
2786 | |
2787 | return *addrp; | |
2788 | } | |
2789 | ||
2790 | /* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */ | |
2791 | ||
2792 | int | |
2793 | core_addr_eq (const void *ap, const void *bp) | |
2794 | { | |
19ba03f4 SM |
2795 | const CORE_ADDR *addr_ap = (const CORE_ADDR *) ap; |
2796 | const CORE_ADDR *addr_bp = (const CORE_ADDR *) bp; | |
8e3b41a9 JK |
2797 | |
2798 | return *addr_ap == *addr_bp; | |
2799 | } | |
2800 | ||
03dd37c3 AC |
2801 | /* Convert a string back into a CORE_ADDR. */ |
2802 | CORE_ADDR | |
2803 | string_to_core_addr (const char *my_string) | |
2804 | { | |
2805 | CORE_ADDR addr = 0; | |
9544c605 | 2806 | |
03dd37c3 AC |
2807 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
2808 | { | |
ced572fe | 2809 | /* Assume that it is in hex. */ |
03dd37c3 | 2810 | int i; |
5d502164 | 2811 | |
03dd37c3 AC |
2812 | for (i = 2; my_string[i] != '\0'; i++) |
2813 | { | |
2814 | if (isdigit (my_string[i])) | |
2815 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 2816 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
2817 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
2818 | else | |
63f06803 | 2819 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
2820 | } |
2821 | } | |
2822 | else | |
2823 | { | |
2824 | /* Assume that it is in decimal. */ | |
2825 | int i; | |
5d502164 | 2826 | |
03dd37c3 AC |
2827 | for (i = 0; my_string[i] != '\0'; i++) |
2828 | { | |
2829 | if (isdigit (my_string[i])) | |
2830 | addr = (my_string[i] - '0') + (addr * 10); | |
2831 | else | |
63f06803 | 2832 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
2833 | } |
2834 | } | |
9544c605 | 2835 | |
03dd37c3 AC |
2836 | return addr; |
2837 | } | |
58d370e0 | 2838 | |
14278e1f TT |
2839 | #if GDB_SELF_TEST |
2840 | ||
2841 | static void | |
2842 | gdb_realpath_check_trailer (const char *input, const char *trailer) | |
2843 | { | |
2844 | gdb::unique_xmalloc_ptr<char> result = gdb_realpath (input); | |
2845 | ||
2846 | size_t len = strlen (result.get ()); | |
2847 | size_t trail_len = strlen (trailer); | |
2848 | ||
2849 | SELF_CHECK (len >= trail_len | |
2850 | && strcmp (result.get () + len - trail_len, trailer) == 0); | |
2851 | } | |
2852 | ||
2853 | static void | |
2854 | gdb_realpath_tests () | |
2855 | { | |
2856 | /* A file which contains a directory prefix. */ | |
2857 | gdb_realpath_check_trailer ("./xfullpath.exp", "/xfullpath.exp"); | |
2858 | /* A file which contains a directory prefix. */ | |
2859 | gdb_realpath_check_trailer ("../../defs.h", "/defs.h"); | |
2860 | /* A one-character filename. */ | |
2861 | gdb_realpath_check_trailer ("./a", "/a"); | |
2862 | /* A file in the root directory. */ | |
2863 | gdb_realpath_check_trailer ("/root_file_which_should_exist", | |
2864 | "/root_file_which_should_exist"); | |
2865 | /* A file which does not have a directory prefix. */ | |
2866 | gdb_realpath_check_trailer ("xfullpath.exp", "xfullpath.exp"); | |
2867 | /* A one-char filename without any directory prefix. */ | |
2868 | gdb_realpath_check_trailer ("a", "a"); | |
2869 | /* An empty filename. */ | |
2870 | gdb_realpath_check_trailer ("", ""); | |
2871 | } | |
2872 | ||
2873 | #endif /* GDB_SELF_TEST */ | |
2874 | ||
ae5a43e0 DJ |
2875 | /* Allocation function for the libiberty hash table which uses an |
2876 | obstack. The obstack is passed as DATA. */ | |
2877 | ||
2878 | void * | |
2879 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
2880 | { | |
241fd515 | 2881 | size_t total = size * count; |
ae5a43e0 | 2882 | void *ptr = obstack_alloc ((struct obstack *) data, total); |
e0627e85 | 2883 | |
ae5a43e0 DJ |
2884 | memset (ptr, 0, total); |
2885 | return ptr; | |
2886 | } | |
2887 | ||
2888 | /* Trivial deallocation function for the libiberty splay tree and hash | |
2889 | table - don't deallocate anything. Rely on later deletion of the | |
2890 | obstack. DATA will be the obstack, although it is not needed | |
2891 | here. */ | |
2892 | ||
2893 | void | |
2894 | dummy_obstack_deallocate (void *object, void *data) | |
2895 | { | |
2896 | return; | |
2897 | } | |
253c8abb | 2898 | |
e1024ff1 DJ |
2899 | /* Simple, portable version of dirname that does not modify its |
2900 | argument. */ | |
2901 | ||
d721ba37 | 2902 | std::string |
e1024ff1 DJ |
2903 | ldirname (const char *filename) |
2904 | { | |
d721ba37 | 2905 | std::string dirname; |
e1024ff1 | 2906 | const char *base = lbasename (filename); |
e1024ff1 DJ |
2907 | |
2908 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
2909 | --base; | |
2910 | ||
2911 | if (base == filename) | |
d721ba37 | 2912 | return dirname; |
e1024ff1 | 2913 | |
d721ba37 | 2914 | dirname = std::string (filename, base - filename); |
e1024ff1 DJ |
2915 | |
2916 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
2917 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
2918 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
2919 | && !IS_DIR_SEPARATOR (filename[0])) | |
2920 | dirname[base++ - filename] = '.'; | |
2921 | ||
e1024ff1 DJ |
2922 | return dirname; |
2923 | } | |
d1a41061 | 2924 | |
773a1edc TT |
2925 | /* See utils.h. */ |
2926 | ||
2927 | void | |
2928 | gdb_argv::reset (const char *s) | |
2929 | { | |
2930 | char **argv = buildargv (s); | |
2931 | ||
2932 | if (s != NULL && argv == NULL) | |
2933 | malloc_failure (0); | |
2934 | ||
2935 | freeargv (m_argv); | |
2936 | m_argv = argv; | |
2937 | } | |
2938 | ||
dc146f7c VP |
2939 | int |
2940 | compare_positive_ints (const void *ap, const void *bp) | |
2941 | { | |
2942 | /* Because we know we're comparing two ints which are positive, | |
2943 | there's no danger of overflow here. */ | |
2944 | return * (int *) ap - * (int *) bp; | |
2945 | } | |
2946 | ||
d18b8b7a | 2947 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3e43a32a MS |
2948 | #define AMBIGUOUS_MESS2 \ |
2949 | ".\nUse \"set gnutarget format-name\" to specify the format." | |
d18b8b7a HZ |
2950 | |
2951 | const char * | |
2952 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) | |
2953 | { | |
2954 | char *ret, *retp; | |
2955 | int ret_len; | |
2956 | char **p; | |
2957 | ||
2958 | /* Check if errmsg just need simple return. */ | |
2959 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
2960 | return bfd_errmsg (error_tag); | |
2961 | ||
2962 | ret_len = strlen (bfd_errmsg (error_tag)) + strlen (AMBIGUOUS_MESS1) | |
2963 | + strlen (AMBIGUOUS_MESS2); | |
2964 | for (p = matching; *p; p++) | |
2965 | ret_len += strlen (*p) + 1; | |
224c3ddb | 2966 | ret = (char *) xmalloc (ret_len + 1); |
d18b8b7a HZ |
2967 | retp = ret; |
2968 | make_cleanup (xfree, ret); | |
2969 | ||
2970 | strcpy (retp, bfd_errmsg (error_tag)); | |
2971 | retp += strlen (retp); | |
2972 | ||
2973 | strcpy (retp, AMBIGUOUS_MESS1); | |
2974 | retp += strlen (retp); | |
2975 | ||
2976 | for (p = matching; *p; p++) | |
2977 | { | |
2978 | sprintf (retp, " %s", *p); | |
2979 | retp += strlen (retp); | |
2980 | } | |
2981 | xfree (matching); | |
2982 | ||
2983 | strcpy (retp, AMBIGUOUS_MESS2); | |
2984 | ||
2985 | return ret; | |
2986 | } | |
2987 | ||
74164c56 JK |
2988 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
2989 | ||
2990 | int | |
c0939df1 | 2991 | parse_pid_to_attach (const char *args) |
74164c56 JK |
2992 | { |
2993 | unsigned long pid; | |
2994 | char *dummy; | |
2995 | ||
2996 | if (!args) | |
2997 | error_no_arg (_("process-id to attach")); | |
2998 | ||
c0939df1 | 2999 | dummy = (char *) args; |
74164c56 JK |
3000 | pid = strtoul (args, &dummy, 0); |
3001 | /* Some targets don't set errno on errors, grrr! */ | |
3002 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
3003 | error (_("Illegal process-id: %s."), args); | |
3004 | ||
3005 | return pid; | |
3006 | } | |
3007 | ||
353d1d73 JK |
3008 | /* Helper for make_bpstat_clear_actions_cleanup. */ |
3009 | ||
3010 | static void | |
3011 | do_bpstat_clear_actions_cleanup (void *unused) | |
3012 | { | |
3013 | bpstat_clear_actions (); | |
3014 | } | |
3015 | ||
3016 | /* Call bpstat_clear_actions for the case an exception is throw. You should | |
3017 | discard_cleanups if no exception is caught. */ | |
3018 | ||
3019 | struct cleanup * | |
3020 | make_bpstat_clear_actions_cleanup (void) | |
3021 | { | |
3022 | return make_cleanup (do_bpstat_clear_actions_cleanup, NULL); | |
3023 | } | |
3024 | ||
6dea1fbd JK |
3025 | /* Substitute all occurences of string FROM by string TO in *STRINGP. *STRINGP |
3026 | must come from xrealloc-compatible allocator and it may be updated. FROM | |
1564a261 JK |
3027 | needs to be delimited by IS_DIR_SEPARATOR or DIRNAME_SEPARATOR (or be |
3028 | located at the start or end of *STRINGP. */ | |
6dea1fbd JK |
3029 | |
3030 | void | |
3031 | substitute_path_component (char **stringp, const char *from, const char *to) | |
3032 | { | |
3033 | char *string = *stringp, *s; | |
3034 | const size_t from_len = strlen (from); | |
3035 | const size_t to_len = strlen (to); | |
3036 | ||
3037 | for (s = string;;) | |
3038 | { | |
3039 | s = strstr (s, from); | |
3040 | if (s == NULL) | |
3041 | break; | |
3042 | ||
1564a261 JK |
3043 | if ((s == string || IS_DIR_SEPARATOR (s[-1]) |
3044 | || s[-1] == DIRNAME_SEPARATOR) | |
3045 | && (s[from_len] == '\0' || IS_DIR_SEPARATOR (s[from_len]) | |
3046 | || s[from_len] == DIRNAME_SEPARATOR)) | |
6dea1fbd JK |
3047 | { |
3048 | char *string_new; | |
3049 | ||
224c3ddb SM |
3050 | string_new |
3051 | = (char *) xrealloc (string, (strlen (string) + to_len + 1)); | |
6dea1fbd JK |
3052 | |
3053 | /* Relocate the current S pointer. */ | |
3054 | s = s - string + string_new; | |
3055 | string = string_new; | |
3056 | ||
3057 | /* Replace from by to. */ | |
3058 | memmove (&s[to_len], &s[from_len], strlen (&s[from_len]) + 1); | |
3059 | memcpy (s, to, to_len); | |
3060 | ||
3061 | s += to_len; | |
3062 | } | |
3063 | else | |
3064 | s++; | |
3065 | } | |
3066 | ||
3067 | *stringp = string; | |
3068 | } | |
3069 | ||
0b6cb71e DE |
3070 | #ifdef HAVE_WAITPID |
3071 | ||
3072 | #ifdef SIGALRM | |
3073 | ||
3074 | /* SIGALRM handler for waitpid_with_timeout. */ | |
3075 | ||
3076 | static void | |
3077 | sigalrm_handler (int signo) | |
3078 | { | |
3079 | /* Nothing to do. */ | |
3080 | } | |
3081 | ||
3082 | #endif | |
3083 | ||
3084 | /* Wrapper to wait for child PID to die with TIMEOUT. | |
3085 | TIMEOUT is the time to stop waiting in seconds. | |
3086 | If TIMEOUT is zero, pass WNOHANG to waitpid. | |
3087 | Returns PID if it was successfully waited for, otherwise -1. | |
3088 | ||
3089 | Timeouts are currently implemented with alarm and SIGALRM. | |
3090 | If the host does not support them, this waits "forever". | |
3091 | It would be odd though for a host to have waitpid and not SIGALRM. */ | |
3092 | ||
3093 | pid_t | |
3094 | wait_to_die_with_timeout (pid_t pid, int *status, int timeout) | |
3095 | { | |
3096 | pid_t waitpid_result; | |
3097 | ||
3098 | gdb_assert (pid > 0); | |
3099 | gdb_assert (timeout >= 0); | |
3100 | ||
3101 | if (timeout > 0) | |
3102 | { | |
3103 | #ifdef SIGALRM | |
3104 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3105 | struct sigaction sa, old_sa; | |
3106 | ||
3107 | sa.sa_handler = sigalrm_handler; | |
3108 | sigemptyset (&sa.sa_mask); | |
3109 | sa.sa_flags = 0; | |
3110 | sigaction (SIGALRM, &sa, &old_sa); | |
3111 | #else | |
a40805d4 | 3112 | sighandler_t ofunc; |
0b6cb71e | 3113 | |
a40805d4 | 3114 | ofunc = signal (SIGALRM, sigalrm_handler); |
0b6cb71e DE |
3115 | #endif |
3116 | ||
3117 | alarm (timeout); | |
3118 | #endif | |
3119 | ||
3120 | waitpid_result = waitpid (pid, status, 0); | |
3121 | ||
3122 | #ifdef SIGALRM | |
3123 | alarm (0); | |
3124 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3125 | sigaction (SIGALRM, &old_sa, NULL); | |
3126 | #else | |
3127 | signal (SIGALRM, ofunc); | |
3128 | #endif | |
3129 | #endif | |
3130 | } | |
3131 | else | |
3132 | waitpid_result = waitpid (pid, status, WNOHANG); | |
3133 | ||
3134 | if (waitpid_result == pid) | |
3135 | return pid; | |
3136 | else | |
3137 | return -1; | |
3138 | } | |
3139 | ||
3140 | #endif /* HAVE_WAITPID */ | |
3141 | ||
202cbf1c JK |
3142 | /* Provide fnmatch compatible function for FNM_FILE_NAME matching of host files. |
3143 | Both FNM_FILE_NAME and FNM_NOESCAPE must be set in FLAGS. | |
3144 | ||
3145 | It handles correctly HAVE_DOS_BASED_FILE_SYSTEM and | |
3146 | HAVE_CASE_INSENSITIVE_FILE_SYSTEM. */ | |
3147 | ||
3148 | int | |
3149 | gdb_filename_fnmatch (const char *pattern, const char *string, int flags) | |
3150 | { | |
3151 | gdb_assert ((flags & FNM_FILE_NAME) != 0); | |
3152 | ||
3153 | /* It is unclear how '\' escaping vs. directory separator should coexist. */ | |
3154 | gdb_assert ((flags & FNM_NOESCAPE) != 0); | |
3155 | ||
3156 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3157 | { | |
3158 | char *pattern_slash, *string_slash; | |
3159 | ||
3160 | /* Replace '\' by '/' in both strings. */ | |
3161 | ||
0ae1c716 | 3162 | pattern_slash = (char *) alloca (strlen (pattern) + 1); |
202cbf1c JK |
3163 | strcpy (pattern_slash, pattern); |
3164 | pattern = pattern_slash; | |
3165 | for (; *pattern_slash != 0; pattern_slash++) | |
3166 | if (IS_DIR_SEPARATOR (*pattern_slash)) | |
3167 | *pattern_slash = '/'; | |
3168 | ||
0ae1c716 | 3169 | string_slash = (char *) alloca (strlen (string) + 1); |
202cbf1c JK |
3170 | strcpy (string_slash, string); |
3171 | string = string_slash; | |
3172 | for (; *string_slash != 0; string_slash++) | |
3173 | if (IS_DIR_SEPARATOR (*string_slash)) | |
3174 | *string_slash = '/'; | |
3175 | } | |
3176 | #endif /* HAVE_DOS_BASED_FILE_SYSTEM */ | |
3177 | ||
3178 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
3179 | flags |= FNM_CASEFOLD; | |
3180 | #endif /* HAVE_CASE_INSENSITIVE_FILE_SYSTEM */ | |
3181 | ||
3182 | return fnmatch (pattern, string, flags); | |
3183 | } | |
3184 | ||
cce0e923 DE |
3185 | /* Return the number of path elements in PATH. |
3186 | / = 1 | |
3187 | /foo = 2 | |
3188 | /foo/ = 2 | |
3189 | foo/bar = 2 | |
3190 | foo/ = 1 */ | |
3191 | ||
3192 | int | |
3193 | count_path_elements (const char *path) | |
3194 | { | |
3195 | int count = 0; | |
3196 | const char *p = path; | |
3197 | ||
3198 | if (HAS_DRIVE_SPEC (p)) | |
3199 | { | |
3200 | p = STRIP_DRIVE_SPEC (p); | |
3201 | ++count; | |
3202 | } | |
3203 | ||
3204 | while (*p != '\0') | |
3205 | { | |
3206 | if (IS_DIR_SEPARATOR (*p)) | |
3207 | ++count; | |
3208 | ++p; | |
3209 | } | |
3210 | ||
3211 | /* Backup one if last character is /, unless it's the only one. */ | |
3212 | if (p > path + 1 && IS_DIR_SEPARATOR (p[-1])) | |
3213 | --count; | |
3214 | ||
3215 | /* Add one for the file name, if present. */ | |
3216 | if (p > path && !IS_DIR_SEPARATOR (p[-1])) | |
3217 | ++count; | |
3218 | ||
3219 | return count; | |
3220 | } | |
3221 | ||
3222 | /* Remove N leading path elements from PATH. | |
3223 | N must be non-negative. | |
3224 | If PATH has more than N path elements then return NULL. | |
3225 | If PATH has exactly N path elements then return "". | |
3226 | See count_path_elements for a description of how we do the counting. */ | |
3227 | ||
3228 | const char * | |
3229 | strip_leading_path_elements (const char *path, int n) | |
3230 | { | |
3231 | int i = 0; | |
3232 | const char *p = path; | |
3233 | ||
3234 | gdb_assert (n >= 0); | |
3235 | ||
3236 | if (n == 0) | |
3237 | return p; | |
3238 | ||
3239 | if (HAS_DRIVE_SPEC (p)) | |
3240 | { | |
3241 | p = STRIP_DRIVE_SPEC (p); | |
3242 | ++i; | |
3243 | } | |
3244 | ||
3245 | while (i < n) | |
3246 | { | |
3247 | while (*p != '\0' && !IS_DIR_SEPARATOR (*p)) | |
3248 | ++p; | |
3249 | if (*p == '\0') | |
3250 | { | |
3251 | if (i + 1 == n) | |
3252 | return ""; | |
3253 | return NULL; | |
3254 | } | |
3255 | ++p; | |
3256 | ++i; | |
3257 | } | |
3258 | ||
3259 | return p; | |
3260 | } | |
3261 | ||
3c16cced PA |
3262 | void |
3263 | _initialize_utils (void) | |
3264 | { | |
3265 | add_internal_problem_command (&internal_error_problem); | |
3266 | add_internal_problem_command (&internal_warning_problem); | |
57fcfb1b | 3267 | add_internal_problem_command (&demangler_warning_problem); |
14278e1f TT |
3268 | |
3269 | #if GDB_SELF_TEST | |
1526853e | 3270 | selftests::register_test ("gdb_realpath", gdb_realpath_tests); |
14278e1f | 3271 | #endif |
3c16cced | 3272 | } |