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> | |
8626589c | 73 | |
a3828db0 | 74 | #if !HAVE_DECL_MALLOC |
5ac79d78 | 75 | extern PTR malloc (); /* ARI: PTR */ |
3c37485b | 76 | #endif |
a3828db0 | 77 | #if !HAVE_DECL_REALLOC |
5ac79d78 | 78 | extern PTR realloc (); /* ARI: PTR */ |
0e52036f | 79 | #endif |
a3828db0 | 80 | #if !HAVE_DECL_FREE |
81b8eb80 AC |
81 | extern void free (); |
82 | #endif | |
81b8eb80 | 83 | |
9a4105ab | 84 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
85 | |
86 | /* Prototypes for local functions */ | |
87 | ||
d9fcf2fb | 88 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
a0b31db1 | 89 | va_list, int) ATTRIBUTE_PRINTF (2, 0); |
c906108c | 90 | |
d9fcf2fb | 91 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 92 | |
a14ed312 | 93 | static void prompt_for_continue (void); |
c906108c | 94 | |
eb0d3137 | 95 | static void set_screen_size (void); |
a14ed312 | 96 | static void set_width (void); |
c906108c | 97 | |
260c0b2a DE |
98 | /* Time spent in prompt_for_continue in the currently executing command |
99 | waiting for user to respond. | |
100 | Initialized in make_command_stats_cleanup. | |
101 | Modified in prompt_for_continue and defaulted_query. | |
102 | Used in report_command_stats. */ | |
103 | ||
dcb07cfa | 104 | static std::chrono::steady_clock::duration prompt_for_continue_wait_time; |
260c0b2a | 105 | |
75feb17d DJ |
106 | /* A flag indicating whether to timestamp debugging messages. */ |
107 | ||
108 | static int debug_timestamp = 0; | |
109 | ||
c906108c SS |
110 | /* Nonzero means that strings with character values >0x7F should be printed |
111 | as octal escapes. Zero means just print the value (e.g. it's an | |
112 | international character, and the terminal or window can cope.) */ | |
113 | ||
114 | int sevenbit_strings = 0; | |
920d2a44 AC |
115 | static void |
116 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
117 | struct cmd_list_element *c, const char *value) | |
118 | { | |
3e43a32a MS |
119 | fprintf_filtered (file, _("Printing of 8-bit characters " |
120 | "in strings as \\nnn is %s.\n"), | |
920d2a44 AC |
121 | value); |
122 | } | |
c906108c | 123 | |
c906108c SS |
124 | /* String to be printed before warning messages, if any. */ |
125 | ||
69bbf465 | 126 | const char *warning_pre_print = "\nwarning: "; |
c906108c SS |
127 | |
128 | int pagination_enabled = 1; | |
920d2a44 AC |
129 | static void |
130 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
131 | struct cmd_list_element *c, const char *value) | |
132 | { | |
133 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
134 | } | |
135 | ||
c906108c | 136 | \f |
c27f5738 | 137 | /* Cleanup utilities. |
c5aa993b | 138 | |
c27f5738 DE |
139 | These are not defined in cleanups.c (nor declared in cleanups.h) |
140 | because while they use the "cleanup API" they are not part of the | |
141 | "cleanup API". */ | |
7a292a7a | 142 | |
7b90c3f9 JB |
143 | static void |
144 | do_free_section_addr_info (void *arg) | |
145 | { | |
19ba03f4 | 146 | free_section_addr_info ((struct section_addr_info *) arg); |
7b90c3f9 JB |
147 | } |
148 | ||
149 | struct cleanup * | |
150 | make_cleanup_free_section_addr_info (struct section_addr_info *addrs) | |
151 | { | |
e0088cfd | 152 | return make_cleanup (do_free_section_addr_info, addrs); |
7b90c3f9 JB |
153 | } |
154 | ||
c0edd9ed JK |
155 | /* Helper for make_cleanup_unpush_target. */ |
156 | ||
157 | static void | |
158 | do_unpush_target (void *arg) | |
159 | { | |
19ba03f4 | 160 | struct target_ops *ops = (struct target_ops *) arg; |
c0edd9ed JK |
161 | |
162 | unpush_target (ops); | |
163 | } | |
164 | ||
165 | /* Return a new cleanup that unpushes OPS. */ | |
166 | ||
167 | struct cleanup * | |
168 | make_cleanup_unpush_target (struct target_ops *ops) | |
169 | { | |
e0088cfd | 170 | return make_cleanup (do_unpush_target, ops); |
c0edd9ed JK |
171 | } |
172 | ||
028d0ed5 TJB |
173 | /* Helper for make_cleanup_value_free_to_mark. */ |
174 | ||
175 | static void | |
176 | do_value_free_to_mark (void *value) | |
177 | { | |
178 | value_free_to_mark ((struct value *) value); | |
179 | } | |
180 | ||
181 | /* Free all values allocated since MARK was obtained by value_mark | |
182 | (except for those released) when the cleanup is run. */ | |
183 | ||
184 | struct cleanup * | |
185 | make_cleanup_value_free_to_mark (struct value *mark) | |
186 | { | |
e0088cfd | 187 | return make_cleanup (do_value_free_to_mark, mark); |
028d0ed5 TJB |
188 | } |
189 | ||
c906108c SS |
190 | /* This function is useful for cleanups. |
191 | Do | |
192 | ||
c5aa993b JM |
193 | foo = xmalloc (...); |
194 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
195 | |
196 | to arrange to free the object thus allocated. */ | |
197 | ||
198 | void | |
2f9429ae | 199 | free_current_contents (void *ptr) |
c906108c | 200 | { |
19ba03f4 | 201 | void **location = (void **) ptr; |
e0627e85 | 202 | |
e2f9c474 | 203 | if (location == NULL) |
8e65ff28 | 204 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 205 | _("free_current_contents: NULL pointer")); |
2f9429ae | 206 | if (*location != NULL) |
e2f9c474 | 207 | { |
b8c9b27d | 208 | xfree (*location); |
e2f9c474 AC |
209 | *location = NULL; |
210 | } | |
c906108c | 211 | } |
c906108c | 212 | \f |
c5aa993b | 213 | |
8731e58e | 214 | |
f5a96129 AC |
215 | /* Print a warning message. The first argument STRING is the warning |
216 | message, used as an fprintf format string, the second is the | |
217 | va_list of arguments for that string. A warning is unfiltered (not | |
218 | paginated) so that the user does not need to page through each | |
219 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
220 | |
221 | void | |
f5a96129 | 222 | vwarning (const char *string, va_list args) |
c906108c | 223 | { |
9a4105ab AC |
224 | if (deprecated_warning_hook) |
225 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
226 | else |
227 | { | |
223ffa71 | 228 | gdb::optional<target_terminal::scoped_restore_terminal_state> term_state; |
0d2f5c07 | 229 | if (target_supports_terminal_ours ()) |
c5ac1540 | 230 | { |
223ffa71 TT |
231 | term_state.emplace (); |
232 | target_terminal::ours_for_output (); | |
c5ac1540 | 233 | } |
0d2f5c07 GB |
234 | if (filtered_printing_initialized ()) |
235 | wrap_here (""); /* Force out any buffered output. */ | |
f5a96129 AC |
236 | gdb_flush (gdb_stdout); |
237 | if (warning_pre_print) | |
306d9ac5 | 238 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
239 | vfprintf_unfiltered (gdb_stderr, string, args); |
240 | fprintf_unfiltered (gdb_stderr, "\n"); | |
f5a96129 | 241 | } |
c906108c SS |
242 | } |
243 | ||
c906108c SS |
244 | /* Print an error message and return to command level. |
245 | The first argument STRING is the error message, used as a fprintf string, | |
246 | and the remaining args are passed as arguments to it. */ | |
247 | ||
c25c4a8b | 248 | void |
4ce44c66 JM |
249 | verror (const char *string, va_list args) |
250 | { | |
6b1b7650 | 251 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
252 | } |
253 | ||
c25c4a8b | 254 | void |
d7e74731 | 255 | error_stream (const string_file &stream) |
2acceee2 | 256 | { |
d7e74731 | 257 | error (("%s"), stream.c_str ()); |
2acceee2 | 258 | } |
c906108c | 259 | |
2437fd32 GB |
260 | /* Emit a message and abort. */ |
261 | ||
262 | static void ATTRIBUTE_NORETURN | |
263 | abort_with_message (const char *msg) | |
264 | { | |
72542b8e | 265 | if (current_ui == NULL) |
2437fd32 GB |
266 | fputs (msg, stderr); |
267 | else | |
268 | fputs_unfiltered (msg, gdb_stderr); | |
269 | ||
270 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
271 | } | |
272 | ||
7991dee7 JK |
273 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
274 | ||
eae7090b | 275 | void |
7991dee7 JK |
276 | dump_core (void) |
277 | { | |
278 | #ifdef HAVE_SETRLIMIT | |
279 | struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY }; | |
280 | ||
281 | setrlimit (RLIMIT_CORE, &rlim); | |
282 | #endif /* HAVE_SETRLIMIT */ | |
283 | ||
284 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
285 | } | |
286 | ||
3e43a32a | 287 | /* Check whether GDB will be able to dump core using the dump_core |
eae7090b GB |
288 | function. Returns zero if GDB cannot or should not dump core. |
289 | If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected. | |
290 | If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected. */ | |
7991dee7 | 291 | |
eae7090b GB |
292 | int |
293 | can_dump_core (enum resource_limit_kind limit_kind) | |
7991dee7 JK |
294 | { |
295 | #ifdef HAVE_GETRLIMIT | |
296 | struct rlimit rlim; | |
297 | ||
298 | /* Be quiet and assume we can dump if an error is returned. */ | |
299 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
300 | return 1; | |
301 | ||
eae7090b | 302 | switch (limit_kind) |
7991dee7 | 303 | { |
eae7090b GB |
304 | case LIMIT_CUR: |
305 | if (rlim.rlim_cur == 0) | |
306 | return 0; | |
307 | ||
308 | case LIMIT_MAX: | |
309 | if (rlim.rlim_max == 0) | |
310 | return 0; | |
7991dee7 JK |
311 | } |
312 | #endif /* HAVE_GETRLIMIT */ | |
313 | ||
314 | return 1; | |
315 | } | |
316 | ||
eae7090b GB |
317 | /* Print a warning that we cannot dump core. */ |
318 | ||
319 | void | |
320 | warn_cant_dump_core (const char *reason) | |
321 | { | |
322 | fprintf_unfiltered (gdb_stderr, | |
323 | _("%s\nUnable to dump core, use `ulimit -c" | |
324 | " unlimited' before executing GDB next time.\n"), | |
325 | reason); | |
326 | } | |
327 | ||
328 | /* Check whether GDB will be able to dump core using the dump_core | |
329 | function, and print a warning if we cannot. */ | |
330 | ||
331 | static int | |
332 | can_dump_core_warn (enum resource_limit_kind limit_kind, | |
333 | const char *reason) | |
334 | { | |
335 | int core_dump_allowed = can_dump_core (limit_kind); | |
336 | ||
337 | if (!core_dump_allowed) | |
338 | warn_cant_dump_core (reason); | |
339 | ||
340 | return core_dump_allowed; | |
341 | } | |
342 | ||
3c16cced PA |
343 | /* Allow the user to configure the debugger behavior with respect to |
344 | what to do when an internal problem is detected. */ | |
345 | ||
346 | const char internal_problem_ask[] = "ask"; | |
347 | const char internal_problem_yes[] = "yes"; | |
348 | const char internal_problem_no[] = "no"; | |
40478521 | 349 | static const char *const internal_problem_modes[] = |
3c16cced PA |
350 | { |
351 | internal_problem_ask, | |
352 | internal_problem_yes, | |
353 | internal_problem_no, | |
354 | NULL | |
355 | }; | |
3c16cced | 356 | |
581e13c1 | 357 | /* Print a message reporting an internal error/warning. Ask the user |
dec43320 AC |
358 | if they want to continue, dump core, or just exit. Return |
359 | something to indicate a quit. */ | |
c906108c | 360 | |
dec43320 | 361 | struct internal_problem |
c906108c | 362 | { |
dec43320 | 363 | const char *name; |
57fcfb1b | 364 | int user_settable_should_quit; |
3c16cced | 365 | const char *should_quit; |
57fcfb1b | 366 | int user_settable_should_dump_core; |
3c16cced | 367 | const char *should_dump_core; |
dec43320 AC |
368 | }; |
369 | ||
370 | /* Report a problem, internal to GDB, to the user. Once the problem | |
371 | has been reported, and assuming GDB didn't quit, the caller can | |
372 | either allow execution to resume or throw an error. */ | |
373 | ||
a0b31db1 | 374 | static void ATTRIBUTE_PRINTF (4, 0) |
dec43320 | 375 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 376 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 377 | { |
dec43320 | 378 | static int dejavu; |
375fc983 | 379 | int quit_p; |
7be570e7 | 380 | int dump_core_p; |
e05550d7 | 381 | std::string reason; |
c906108c | 382 | |
dec43320 | 383 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
384 | { |
385 | static char msg[] = "Recursive internal problem.\n"; | |
5d502164 | 386 | |
714b1282 AC |
387 | switch (dejavu) |
388 | { | |
389 | case 0: | |
390 | dejavu = 1; | |
391 | break; | |
392 | case 1: | |
393 | dejavu = 2; | |
2437fd32 | 394 | abort_with_message (msg); |
714b1282 AC |
395 | default: |
396 | dejavu = 3; | |
bf1d7d9c JB |
397 | /* Newer GLIBC versions put the warn_unused_result attribute |
398 | on write, but this is one of those rare cases where | |
399 | ignoring the return value is correct. Casting to (void) | |
400 | does not fix this problem. This is the solution suggested | |
401 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
402 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
7991dee7 | 403 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
404 | exit (1); |
405 | } | |
406 | } | |
c906108c | 407 | |
714b1282 AC |
408 | /* Create a string containing the full error/warning message. Need |
409 | to call query with this full string, as otherwize the reason | |
410 | (error/warning) and question become separated. Format using a | |
411 | style similar to a compiler error message. Include extra detail | |
412 | so that the user knows that they are living on the edge. */ | |
413 | { | |
f8bfbf22 | 414 | std::string msg = string_vprintf (fmt, ap); |
e05550d7 TT |
415 | reason = string_printf ("%s:%d: %s: %s\n" |
416 | "A problem internal to GDB has been detected,\n" | |
417 | "further debugging may prove unreliable.", | |
418 | file, line, problem->name, msg.c_str ()); | |
714b1282 | 419 | } |
7be570e7 | 420 | |
2437fd32 | 421 | /* Fall back to abort_with_message if gdb_stderr is not set up. */ |
72542b8e | 422 | if (current_ui == NULL) |
2437fd32 | 423 | { |
e05550d7 | 424 | fputs (reason.c_str (), stderr); |
2437fd32 GB |
425 | abort_with_message ("\n"); |
426 | } | |
427 | ||
428 | /* Try to get the message out and at the start of a new line. */ | |
223ffa71 | 429 | gdb::optional<target_terminal::scoped_restore_terminal_state> term_state; |
2437fd32 | 430 | if (target_supports_terminal_ours ()) |
c5ac1540 | 431 | { |
223ffa71 TT |
432 | term_state.emplace (); |
433 | target_terminal::ours_for_output (); | |
c5ac1540 | 434 | } |
2437fd32 GB |
435 | if (filtered_printing_initialized ()) |
436 | begin_line (); | |
437 | ||
196a707b | 438 | /* Emit the message unless query will emit it below. */ |
2437fd32 GB |
439 | if (problem->should_quit != internal_problem_ask |
440 | || !confirm | |
441 | || !filtered_printing_initialized ()) | |
e05550d7 | 442 | fprintf_unfiltered (gdb_stderr, "%s\n", reason.c_str ()); |
196a707b | 443 | |
3c16cced | 444 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 445 | { |
dec43320 | 446 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
447 | this lessens the likelihood of GDB going into an infinite |
448 | loop. */ | |
2437fd32 | 449 | if (!confirm || !filtered_printing_initialized ()) |
196a707b | 450 | quit_p = 1; |
26bb68be | 451 | else |
e05550d7 TT |
452 | quit_p = query (_("%s\nQuit this debugging session? "), |
453 | reason.c_str ()); | |
dec43320 | 454 | } |
3c16cced PA |
455 | else if (problem->should_quit == internal_problem_yes) |
456 | quit_p = 1; | |
457 | else if (problem->should_quit == internal_problem_no) | |
458 | quit_p = 0; | |
459 | else | |
460 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 461 | |
add6c04d GB |
462 | fputs_unfiltered (_("\nThis is a bug, please report it."), gdb_stderr); |
463 | if (REPORT_BUGS_TO[0]) | |
464 | fprintf_unfiltered (gdb_stderr, _(" For instructions, see:\n%s."), | |
465 | REPORT_BUGS_TO); | |
466 | fputs_unfiltered ("\n\n", gdb_stderr); | |
467 | ||
3c16cced | 468 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 469 | { |
e05550d7 | 470 | if (!can_dump_core_warn (LIMIT_MAX, reason.c_str ())) |
7991dee7 | 471 | dump_core_p = 0; |
2437fd32 GB |
472 | else if (!filtered_printing_initialized ()) |
473 | dump_core_p = 1; | |
7991dee7 JK |
474 | else |
475 | { | |
476 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
477 | `dropping' so that it is easier to see that something went | |
478 | wrong in GDB. */ | |
e05550d7 TT |
479 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), |
480 | reason.c_str ()); | |
7991dee7 | 481 | } |
dec43320 | 482 | } |
3c16cced | 483 | else if (problem->should_dump_core == internal_problem_yes) |
e05550d7 | 484 | dump_core_p = can_dump_core_warn (LIMIT_MAX, reason.c_str ()); |
3c16cced PA |
485 | else if (problem->should_dump_core == internal_problem_no) |
486 | dump_core_p = 0; | |
487 | else | |
488 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 489 | |
375fc983 | 490 | if (quit_p) |
7be570e7 JM |
491 | { |
492 | if (dump_core_p) | |
7991dee7 | 493 | dump_core (); |
375fc983 AC |
494 | else |
495 | exit (1); | |
7be570e7 JM |
496 | } |
497 | else | |
498 | { | |
499 | if (dump_core_p) | |
375fc983 | 500 | { |
9b265ec2 | 501 | #ifdef HAVE_WORKING_FORK |
375fc983 | 502 | if (fork () == 0) |
7991dee7 | 503 | dump_core (); |
9b265ec2 | 504 | #endif |
375fc983 | 505 | } |
7be570e7 | 506 | } |
96baa820 JM |
507 | |
508 | dejavu = 0; | |
dec43320 AC |
509 | } |
510 | ||
511 | static struct internal_problem internal_error_problem = { | |
57fcfb1b | 512 | "internal-error", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
513 | }; |
514 | ||
c25c4a8b | 515 | void |
8731e58e | 516 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
517 | { |
518 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
2c51604d | 519 | throw_quit (_("Command aborted.")); |
c906108c SS |
520 | } |
521 | ||
dec43320 | 522 | static struct internal_problem internal_warning_problem = { |
57fcfb1b | 523 | "internal-warning", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
524 | }; |
525 | ||
526 | void | |
8731e58e | 527 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
528 | { |
529 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
530 | } | |
531 | ||
57fcfb1b GB |
532 | static struct internal_problem demangler_warning_problem = { |
533 | "demangler-warning", 1, internal_problem_ask, 0, internal_problem_no | |
534 | }; | |
535 | ||
536 | void | |
537 | demangler_vwarning (const char *file, int line, const char *fmt, va_list ap) | |
538 | { | |
539 | internal_vproblem (&demangler_warning_problem, file, line, fmt, ap); | |
540 | } | |
541 | ||
542 | void | |
543 | demangler_warning (const char *file, int line, const char *string, ...) | |
544 | { | |
545 | va_list ap; | |
546 | ||
547 | va_start (ap, string); | |
548 | demangler_vwarning (file, line, string, ap); | |
549 | va_end (ap); | |
550 | } | |
551 | ||
3c16cced PA |
552 | /* Dummy functions to keep add_prefix_cmd happy. */ |
553 | ||
554 | static void | |
981a3fb3 | 555 | set_internal_problem_cmd (const char *args, int from_tty) |
3c16cced PA |
556 | { |
557 | } | |
558 | ||
559 | static void | |
981a3fb3 | 560 | show_internal_problem_cmd (const char *args, int from_tty) |
3c16cced PA |
561 | { |
562 | } | |
563 | ||
564 | /* When GDB reports an internal problem (error or warning) it gives | |
565 | the user the opportunity to quit GDB and/or create a core file of | |
566 | the current debug session. This function registers a few commands | |
567 | that make it possible to specify that GDB should always or never | |
568 | quit or create a core file, without asking. The commands look | |
569 | like: | |
570 | ||
571 | maint set PROBLEM-NAME quit ask|yes|no | |
572 | maint show PROBLEM-NAME quit | |
573 | maint set PROBLEM-NAME corefile ask|yes|no | |
574 | maint show PROBLEM-NAME corefile | |
575 | ||
576 | Where PROBLEM-NAME is currently "internal-error" or | |
577 | "internal-warning". */ | |
578 | ||
579 | static void | |
580 | add_internal_problem_command (struct internal_problem *problem) | |
581 | { | |
582 | struct cmd_list_element **set_cmd_list; | |
583 | struct cmd_list_element **show_cmd_list; | |
584 | char *set_doc; | |
585 | char *show_doc; | |
586 | ||
8d749320 SM |
587 | set_cmd_list = XNEW (struct cmd_list_element *); |
588 | show_cmd_list = XNEW (struct cmd_list_element *); | |
3c16cced PA |
589 | *set_cmd_list = NULL; |
590 | *show_cmd_list = NULL; | |
591 | ||
592 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
593 | problem->name); | |
594 | ||
595 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
596 | problem->name); | |
597 | ||
981a3fb3 | 598 | add_prefix_cmd (problem->name, |
3c16cced PA |
599 | class_maintenance, set_internal_problem_cmd, set_doc, |
600 | set_cmd_list, | |
c4f7c687 MK |
601 | concat ("maintenance set ", problem->name, " ", |
602 | (char *) NULL), | |
3c16cced PA |
603 | 0/*allow-unknown*/, &maintenance_set_cmdlist); |
604 | ||
981a3fb3 | 605 | add_prefix_cmd (problem->name, |
3c16cced PA |
606 | class_maintenance, show_internal_problem_cmd, show_doc, |
607 | show_cmd_list, | |
c4f7c687 MK |
608 | concat ("maintenance show ", problem->name, " ", |
609 | (char *) NULL), | |
3c16cced PA |
610 | 0/*allow-unknown*/, &maintenance_show_cmdlist); |
611 | ||
57fcfb1b GB |
612 | if (problem->user_settable_should_quit) |
613 | { | |
614 | set_doc = xstrprintf (_("Set whether GDB should quit " | |
615 | "when an %s is detected"), | |
616 | problem->name); | |
617 | show_doc = xstrprintf (_("Show whether GDB will quit " | |
618 | "when an %s is detected"), | |
619 | problem->name); | |
620 | add_setshow_enum_cmd ("quit", class_maintenance, | |
621 | internal_problem_modes, | |
622 | &problem->should_quit, | |
623 | set_doc, | |
624 | show_doc, | |
625 | NULL, /* help_doc */ | |
626 | NULL, /* setfunc */ | |
627 | NULL, /* showfunc */ | |
628 | set_cmd_list, | |
629 | show_cmd_list); | |
630 | ||
631 | xfree (set_doc); | |
632 | xfree (show_doc); | |
633 | } | |
1eefb858 | 634 | |
57fcfb1b GB |
635 | if (problem->user_settable_should_dump_core) |
636 | { | |
637 | set_doc = xstrprintf (_("Set whether GDB should create a core " | |
638 | "file of GDB when %s is detected"), | |
639 | problem->name); | |
640 | show_doc = xstrprintf (_("Show whether GDB will create a core " | |
641 | "file of GDB when %s is detected"), | |
642 | problem->name); | |
643 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
644 | internal_problem_modes, | |
645 | &problem->should_dump_core, | |
646 | set_doc, | |
647 | show_doc, | |
648 | NULL, /* help_doc */ | |
649 | NULL, /* setfunc */ | |
650 | NULL, /* showfunc */ | |
651 | set_cmd_list, | |
652 | show_cmd_list); | |
653 | ||
654 | xfree (set_doc); | |
655 | xfree (show_doc); | |
656 | } | |
3c16cced PA |
657 | } |
658 | ||
0cf4063e | 659 | /* Return a newly allocated string, containing the PREFIX followed |
18e9961f | 660 | by the system error message for errno (separated by a colon). */ |
0cf4063e | 661 | |
18e9961f | 662 | static std::string |
0cf4063e JB |
663 | perror_string (const char *prefix) |
664 | { | |
665 | char *err; | |
0cf4063e JB |
666 | |
667 | err = safe_strerror (errno); | |
18e9961f | 668 | return std::string (prefix) + ": " + err; |
0cf4063e JB |
669 | } |
670 | ||
c906108c | 671 | /* Print the system error message for errno, and also mention STRING |
598d3636 JK |
672 | as the file name for which the error was encountered. Use ERRCODE |
673 | for the thrown exception. Then return to command level. */ | |
c906108c | 674 | |
c25c4a8b | 675 | void |
598d3636 | 676 | throw_perror_with_name (enum errors errcode, const char *string) |
c906108c | 677 | { |
18e9961f | 678 | std::string combined = perror_string (string); |
c906108c SS |
679 | |
680 | /* I understand setting these is a matter of taste. Still, some people | |
681 | may clear errno but not know about bfd_error. Doing this here is not | |
581e13c1 | 682 | unreasonable. */ |
c906108c SS |
683 | bfd_set_error (bfd_error_no_error); |
684 | errno = 0; | |
685 | ||
18e9961f | 686 | throw_error (errcode, _("%s."), combined.c_str ()); |
598d3636 JK |
687 | } |
688 | ||
689 | /* See throw_perror_with_name, ERRCODE defaults here to GENERIC_ERROR. */ | |
690 | ||
691 | void | |
692 | perror_with_name (const char *string) | |
693 | { | |
694 | throw_perror_with_name (GENERIC_ERROR, string); | |
c906108c SS |
695 | } |
696 | ||
7c647d61 JB |
697 | /* Same as perror_with_name except that it prints a warning instead |
698 | of throwing an error. */ | |
699 | ||
700 | void | |
701 | perror_warning_with_name (const char *string) | |
702 | { | |
18e9961f TT |
703 | std::string combined = perror_string (string); |
704 | warning (_("%s"), combined.c_str ()); | |
7c647d61 JB |
705 | } |
706 | ||
c906108c SS |
707 | /* Print the system error message for ERRCODE, and also mention STRING |
708 | as the file name for which the error was encountered. */ | |
709 | ||
710 | void | |
6972bc8b | 711 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
712 | { |
713 | char *err; | |
714 | char *combined; | |
715 | ||
716 | err = safe_strerror (errcode); | |
717 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
718 | strcpy (combined, string); | |
719 | strcat (combined, ": "); | |
720 | strcat (combined, err); | |
721 | ||
722 | /* We want anything which was printed on stdout to come out first, before | |
723 | this message. */ | |
724 | gdb_flush (gdb_stdout); | |
725 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
726 | } | |
727 | ||
728 | /* Control C eventually causes this to be called, at a convenient time. */ | |
729 | ||
730 | void | |
fba45db2 | 731 | quit (void) |
c906108c | 732 | { |
06c868a8 JK |
733 | if (sync_quit_force_run) |
734 | { | |
735 | sync_quit_force_run = 0; | |
268a799a | 736 | quit_force (NULL, 0); |
06c868a8 JK |
737 | } |
738 | ||
7be570e7 JM |
739 | #ifdef __MSDOS__ |
740 | /* No steenking SIGINT will ever be coming our way when the | |
741 | program is resumed. Don't lie. */ | |
2c51604d | 742 | throw_quit ("Quit"); |
7be570e7 | 743 | #else |
c906108c | 744 | if (job_control |
8731e58e AC |
745 | /* If there is no terminal switching for this target, then we can't |
746 | possibly get screwed by the lack of job control. */ | |
b0ed115f | 747 | || !target_supports_terminal_ours ()) |
2c51604d | 748 | throw_quit ("Quit"); |
c906108c | 749 | else |
2c51604d | 750 | throw_quit ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 751 | #endif |
c906108c SS |
752 | } |
753 | ||
abc56d60 PA |
754 | /* See defs.h. */ |
755 | ||
756 | void | |
757 | maybe_quit (void) | |
758 | { | |
048094ac | 759 | if (sync_quit_force_run) |
abc56d60 | 760 | quit (); |
048094ac PA |
761 | |
762 | quit_handler (); | |
763 | ||
abc56d60 PA |
764 | if (deprecated_interactive_hook) |
765 | deprecated_interactive_hook (); | |
abc56d60 PA |
766 | } |
767 | ||
c906108c | 768 | \f |
c906108c | 769 | /* Called when a memory allocation fails, with the number of bytes of |
581e13c1 | 770 | memory requested in SIZE. */ |
c906108c | 771 | |
c25c4a8b | 772 | void |
d26e3629 | 773 | malloc_failure (long size) |
c906108c SS |
774 | { |
775 | if (size > 0) | |
776 | { | |
8e65ff28 | 777 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 778 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 779 | size); |
c906108c SS |
780 | } |
781 | else | |
782 | { | |
e2e0b3e5 | 783 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
784 | } |
785 | } | |
786 | ||
c906108c SS |
787 | /* My replacement for the read system call. |
788 | Used like `read' but keeps going if `read' returns too soon. */ | |
789 | ||
790 | int | |
fba45db2 | 791 | myread (int desc, char *addr, int len) |
c906108c | 792 | { |
52f0bd74 | 793 | int val; |
c906108c SS |
794 | int orglen = len; |
795 | ||
796 | while (len > 0) | |
797 | { | |
798 | val = read (desc, addr, len); | |
799 | if (val < 0) | |
800 | return val; | |
801 | if (val == 0) | |
802 | return orglen - len; | |
803 | len -= val; | |
804 | addr += val; | |
805 | } | |
806 | return orglen; | |
807 | } | |
d26e3629 | 808 | |
c906108c | 809 | void |
aa1ee363 | 810 | print_spaces (int n, struct ui_file *file) |
c906108c | 811 | { |
392a587b | 812 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
813 | } |
814 | ||
815 | /* Print a host address. */ | |
816 | ||
817 | void | |
b80c3053 | 818 | gdb_print_host_address_1 (const void *addr, struct ui_file *stream) |
c906108c | 819 | { |
ea8992ce | 820 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 821 | } |
7c50a931 DE |
822 | |
823 | /* See utils.h. */ | |
824 | ||
825 | char * | |
826 | make_hex_string (const gdb_byte *data, size_t length) | |
827 | { | |
224c3ddb | 828 | char *result = (char *) xmalloc (length * 2 + 1); |
7c50a931 DE |
829 | char *p; |
830 | size_t i; | |
831 | ||
832 | p = result; | |
833 | for (i = 0; i < length; ++i) | |
dc4d6886 | 834 | p += xsnprintf (p, 3, "%02x", data[i]); |
7c50a931 DE |
835 | *p = '\0'; |
836 | return result; | |
837 | } | |
838 | ||
c906108c | 839 | \f |
c5aa993b | 840 | |
223ffa71 TT |
841 | /* An RAII class that sets up to handle input and then tears down |
842 | during destruction. */ | |
3eb7562a | 843 | |
223ffa71 | 844 | class scoped_input_handler |
3eb7562a | 845 | { |
223ffa71 | 846 | public: |
3eb7562a | 847 | |
223ffa71 | 848 | scoped_input_handler () |
c2f97536 | 849 | : m_quit_handler (&quit_handler, default_quit_handler), |
223ffa71 TT |
850 | m_ui (NULL) |
851 | { | |
852 | target_terminal::ours (); | |
853 | ui_register_input_event_handler (current_ui); | |
854 | if (current_ui->prompt_state == PROMPT_BLOCKED) | |
855 | m_ui = current_ui; | |
856 | } | |
3eb7562a | 857 | |
223ffa71 TT |
858 | ~scoped_input_handler () |
859 | { | |
860 | if (m_ui != NULL) | |
861 | ui_unregister_input_event_handler (m_ui); | |
862 | } | |
3eb7562a | 863 | |
223ffa71 | 864 | DISABLE_COPY_AND_ASSIGN (scoped_input_handler); |
3eb7562a | 865 | |
223ffa71 | 866 | private: |
3eb7562a | 867 | |
223ffa71 TT |
868 | /* Save and restore the terminal state. */ |
869 | target_terminal::scoped_restore_terminal_state m_term_state; | |
3eb7562a | 870 | |
223ffa71 | 871 | /* Save and restore the quit handler. */ |
c2f97536 | 872 | scoped_restore_tmpl<quit_handler_ftype *> m_quit_handler; |
223ffa71 TT |
873 | |
874 | /* The saved UI, if non-NULL. */ | |
875 | struct ui *m_ui; | |
876 | }; | |
3eb7562a | 877 | |
db1ff28b JK |
878 | \f |
879 | ||
981c7f5a | 880 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 881 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
882 | answer is yes, or default the answer to the specified default |
883 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
884 | default answer, or '\0' for no default. | |
cbdeadca JJ |
885 | CTLSTR is the control string and should end in "? ". It should |
886 | not say how to answer, because we do that. | |
887 | ARGS are the arguments passed along with the CTLSTR argument to | |
888 | printf. */ | |
889 | ||
a0b31db1 | 890 | static int ATTRIBUTE_PRINTF (1, 0) |
cbdeadca JJ |
891 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
892 | { | |
cbdeadca JJ |
893 | int retval; |
894 | int def_value; | |
895 | char def_answer, not_def_answer; | |
a121b7c1 | 896 | const char *y_string, *n_string; |
cbdeadca JJ |
897 | |
898 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
899 | if (defchar == '\0') |
900 | { | |
901 | def_value = 1; | |
902 | def_answer = 'Y'; | |
903 | not_def_answer = 'N'; | |
904 | y_string = "y"; | |
905 | n_string = "n"; | |
906 | } | |
907 | else if (defchar == 'y') | |
cbdeadca JJ |
908 | { |
909 | def_value = 1; | |
910 | def_answer = 'Y'; | |
911 | not_def_answer = 'N'; | |
912 | y_string = "[y]"; | |
913 | n_string = "n"; | |
914 | } | |
915 | else | |
916 | { | |
917 | def_value = 0; | |
918 | def_answer = 'N'; | |
919 | not_def_answer = 'Y'; | |
920 | y_string = "y"; | |
921 | n_string = "[n]"; | |
922 | } | |
923 | ||
981c7f5a | 924 | /* Automatically answer the default value if the user did not want |
a502cf95 | 925 | prompts or the command was issued with the server prefix. */ |
e360902b | 926 | if (!confirm || server_command) |
981c7f5a DJ |
927 | return def_value; |
928 | ||
929 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 930 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
931 | way, important error messages don't get lost when talking to GDB |
932 | over a pipe. */ | |
268a799a | 933 | if (current_ui->instream != current_ui->stdin_stream |
26a06916 SM |
934 | || !input_interactive_p (current_ui) |
935 | /* Restrict queries to the main UI. */ | |
936 | || current_ui != main_ui) | |
981c7f5a | 937 | { |
223ffa71 TT |
938 | target_terminal::scoped_restore_terminal_state term_state; |
939 | target_terminal::ours_for_output (); | |
981c7f5a DJ |
940 | wrap_here (""); |
941 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
942 | ||
3e43a32a MS |
943 | printf_filtered (_("(%s or %s) [answered %c; " |
944 | "input not from terminal]\n"), | |
981c7f5a DJ |
945 | y_string, n_string, def_answer); |
946 | gdb_flush (gdb_stdout); | |
947 | ||
948 | return def_value; | |
949 | } | |
950 | ||
9a4105ab | 951 | if (deprecated_query_hook) |
cbdeadca | 952 | { |
223ffa71 TT |
953 | target_terminal::scoped_restore_terminal_state term_state; |
954 | return deprecated_query_hook (ctlstr, args); | |
651ce16a | 955 | } |
80dbc9fd | 956 | |
981c7f5a | 957 | /* Format the question outside of the loop, to avoid reusing args. */ |
e05550d7 TT |
958 | std::string question = string_vprintf (ctlstr, args); |
959 | std::string prompt | |
960 | = string_printf (_("%s%s(%s or %s) %s"), | |
961 | annotation_level > 1 ? "\n\032\032pre-query\n" : "", | |
962 | question.c_str (), y_string, n_string, | |
963 | annotation_level > 1 ? "\n\032\032query\n" : ""); | |
981c7f5a | 964 | |
dcb07cfa PA |
965 | /* Used to add duration we waited for user to respond to |
966 | prompt_for_continue_wait_time. */ | |
967 | using namespace std::chrono; | |
968 | steady_clock::time_point prompt_started = steady_clock::now (); | |
260c0b2a | 969 | |
223ffa71 | 970 | scoped_input_handler prepare_input; |
651ce16a | 971 | |
cbdeadca JJ |
972 | while (1) |
973 | { | |
588dcc3e | 974 | char *response, answer; |
cbdeadca | 975 | |
cbdeadca | 976 | gdb_flush (gdb_stdout); |
e05550d7 | 977 | response = gdb_readline_wrapper (prompt.c_str ()); |
cbdeadca | 978 | |
588dcc3e | 979 | if (response == NULL) /* C-d */ |
cbdeadca | 980 | { |
fa3fd85b | 981 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
982 | retval = def_value; |
983 | break; | |
984 | } | |
588dcc3e PP |
985 | |
986 | answer = response[0]; | |
987 | xfree (response); | |
cbdeadca JJ |
988 | |
989 | if (answer >= 'a') | |
990 | answer -= 040; | |
991 | /* Check answer. For the non-default, the user must specify | |
992 | the non-default explicitly. */ | |
993 | if (answer == not_def_answer) | |
994 | { | |
995 | retval = !def_value; | |
996 | break; | |
997 | } | |
981c7f5a DJ |
998 | /* Otherwise, if a default was specified, the user may either |
999 | specify the required input or have it default by entering | |
1000 | nothing. */ | |
1001 | if (answer == def_answer | |
588dcc3e | 1002 | || (defchar != '\0' && answer == '\0')) |
cbdeadca JJ |
1003 | { |
1004 | retval = def_value; | |
1005 | break; | |
1006 | } | |
1007 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 1008 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
1009 | y_string, n_string); |
1010 | } | |
1011 | ||
260c0b2a | 1012 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
dcb07cfa | 1013 | prompt_for_continue_wait_time += steady_clock::now () - prompt_started; |
260c0b2a | 1014 | |
cbdeadca | 1015 | if (annotation_level > 1) |
a3f17187 | 1016 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
1017 | return retval; |
1018 | } | |
1019 | \f | |
1020 | ||
1021 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1022 | answer is yes, or 0 if answer is defaulted. | |
1023 | Takes three args which are given to printf to print the question. | |
1024 | The first, a control string, should end in "? ". | |
1025 | It should not say how to answer, because we do that. */ | |
1026 | ||
1027 | int | |
1028 | nquery (const char *ctlstr, ...) | |
1029 | { | |
1030 | va_list args; | |
899500d6 | 1031 | int ret; |
cbdeadca JJ |
1032 | |
1033 | va_start (args, ctlstr); | |
899500d6 | 1034 | ret = defaulted_query (ctlstr, 'n', args); |
cbdeadca | 1035 | va_end (args); |
899500d6 | 1036 | return ret; |
cbdeadca JJ |
1037 | } |
1038 | ||
1039 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1040 | answer is yes, or 1 if answer is defaulted. | |
1041 | Takes three args which are given to printf to print the question. | |
1042 | The first, a control string, should end in "? ". | |
1043 | It should not say how to answer, because we do that. */ | |
1044 | ||
1045 | int | |
1046 | yquery (const char *ctlstr, ...) | |
1047 | { | |
1048 | va_list args; | |
899500d6 | 1049 | int ret; |
cbdeadca JJ |
1050 | |
1051 | va_start (args, ctlstr); | |
899500d6 | 1052 | ret = defaulted_query (ctlstr, 'y', args); |
cbdeadca | 1053 | va_end (args); |
899500d6 | 1054 | return ret; |
cbdeadca JJ |
1055 | } |
1056 | ||
981c7f5a DJ |
1057 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
1058 | Takes three args which are given to printf to print the question. | |
1059 | The first, a control string, should end in "? ". | |
1060 | It should not say how to answer, because we do that. */ | |
1061 | ||
1062 | int | |
1063 | query (const char *ctlstr, ...) | |
1064 | { | |
1065 | va_list args; | |
899500d6 | 1066 | int ret; |
981c7f5a DJ |
1067 | |
1068 | va_start (args, ctlstr); | |
899500d6 | 1069 | ret = defaulted_query (ctlstr, '\0', args); |
981c7f5a | 1070 | va_end (args); |
899500d6 | 1071 | return ret; |
981c7f5a DJ |
1072 | } |
1073 | ||
6c7a06a3 TT |
1074 | /* A helper for parse_escape that converts a host character to a |
1075 | target character. C is the host character. If conversion is | |
1076 | possible, then the target character is stored in *TARGET_C and the | |
1077 | function returns 1. Otherwise, the function returns 0. */ | |
1078 | ||
1079 | static int | |
f870a310 | 1080 | host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c) |
234b45d4 | 1081 | { |
6c7a06a3 | 1082 | char the_char = c; |
6c7a06a3 | 1083 | int result = 0; |
234b45d4 | 1084 | |
8268c778 | 1085 | auto_obstack host_data; |
234b45d4 | 1086 | |
f870a310 | 1087 | convert_between_encodings (target_charset (gdbarch), host_charset (), |
ac91cd70 PA |
1088 | (gdb_byte *) &the_char, 1, 1, |
1089 | &host_data, translit_none); | |
6c7a06a3 TT |
1090 | |
1091 | if (obstack_object_size (&host_data) == 1) | |
1092 | { | |
1093 | result = 1; | |
1094 | *target_c = *(char *) obstack_base (&host_data); | |
1095 | } | |
1096 | ||
6c7a06a3 | 1097 | return result; |
234b45d4 KB |
1098 | } |
1099 | ||
c906108c SS |
1100 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1101 | containing a pointer to the string to parse. That pointer | |
1102 | should point to the character after the \. That pointer | |
1103 | is updated past the characters we use. The value of the | |
1104 | escape sequence is returned. | |
1105 | ||
1106 | A negative value means the sequence \ newline was seen, | |
1107 | which is supposed to be equivalent to nothing at all. | |
1108 | ||
1109 | If \ is followed by a null character, we return a negative | |
1110 | value and leave the string pointer pointing at the null character. | |
1111 | ||
1112 | If \ is followed by 000, we return 0 and leave the string pointer | |
1113 | after the zeros. A value of 0 does not mean end of string. */ | |
1114 | ||
1115 | int | |
d7561cbb | 1116 | parse_escape (struct gdbarch *gdbarch, const char **string_ptr) |
c906108c | 1117 | { |
581e13c1 | 1118 | int target_char = -2; /* Initialize to avoid GCC warnings. */ |
52f0bd74 | 1119 | int c = *(*string_ptr)++; |
e0627e85 | 1120 | |
6c7a06a3 TT |
1121 | switch (c) |
1122 | { | |
8731e58e AC |
1123 | case '\n': |
1124 | return -2; | |
1125 | case 0: | |
1126 | (*string_ptr)--; | |
1127 | return 0; | |
8731e58e AC |
1128 | |
1129 | case '0': | |
1130 | case '1': | |
1131 | case '2': | |
1132 | case '3': | |
1133 | case '4': | |
1134 | case '5': | |
1135 | case '6': | |
1136 | case '7': | |
1137 | { | |
6c7a06a3 | 1138 | int i = host_hex_value (c); |
aa1ee363 | 1139 | int count = 0; |
8731e58e AC |
1140 | while (++count < 3) |
1141 | { | |
5cb316ef | 1142 | c = (**string_ptr); |
6c7a06a3 | 1143 | if (isdigit (c) && c != '8' && c != '9') |
8731e58e | 1144 | { |
5cb316ef | 1145 | (*string_ptr)++; |
8731e58e | 1146 | i *= 8; |
6c7a06a3 | 1147 | i += host_hex_value (c); |
8731e58e AC |
1148 | } |
1149 | else | |
1150 | { | |
8731e58e AC |
1151 | break; |
1152 | } | |
1153 | } | |
1154 | return i; | |
1155 | } | |
6c7a06a3 TT |
1156 | |
1157 | case 'a': | |
1158 | c = '\a'; | |
1159 | break; | |
1160 | case 'b': | |
1161 | c = '\b'; | |
1162 | break; | |
1163 | case 'f': | |
1164 | c = '\f'; | |
1165 | break; | |
1166 | case 'n': | |
1167 | c = '\n'; | |
1168 | break; | |
1169 | case 'r': | |
1170 | c = '\r'; | |
1171 | break; | |
1172 | case 't': | |
1173 | c = '\t'; | |
1174 | break; | |
1175 | case 'v': | |
1176 | c = '\v'; | |
1177 | break; | |
1178 | ||
1179 | default: | |
1180 | break; | |
1181 | } | |
1182 | ||
f870a310 | 1183 | if (!host_char_to_target (gdbarch, c, &target_char)) |
3351ea09 JB |
1184 | error (_("The escape sequence `\\%c' is equivalent to plain `%c'," |
1185 | " which has no equivalent\nin the `%s' character set."), | |
905b671b | 1186 | c, c, target_charset (gdbarch)); |
6c7a06a3 | 1187 | return target_char; |
c906108c SS |
1188 | } |
1189 | \f | |
1190 | /* Print the character C on STREAM as part of the contents of a literal | |
1191 | string whose delimiter is QUOTER. Note that this routine should only | |
f9acce4a | 1192 | be called for printing things which are independent of the language |
6ef284bd SM |
1193 | of the program being debugged. |
1194 | ||
1195 | printchar will normally escape backslashes and instances of QUOTER. If | |
1196 | QUOTER is 0, printchar won't escape backslashes or any quoting character. | |
1197 | As a side effect, if you pass the backslash character as the QUOTER, | |
1198 | printchar will escape backslashes as usual, but not any other quoting | |
1199 | character. */ | |
c906108c | 1200 | |
43e526b9 | 1201 | static void |
74f832da | 1202 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
bee0189a DJ |
1203 | void (*do_fprintf) (struct ui_file *, const char *, ...) |
1204 | ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter) | |
c906108c | 1205 | { |
c906108c SS |
1206 | c &= 0xFF; /* Avoid sign bit follies */ |
1207 | ||
c5aa993b JM |
1208 | if (c < 0x20 || /* Low control chars */ |
1209 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1210 | (sevenbit_strings && c >= 0x80)) | |
1211 | { /* high order bit set */ | |
1212 | switch (c) | |
1213 | { | |
1214 | case '\n': | |
43e526b9 | 1215 | do_fputs ("\\n", stream); |
c5aa993b JM |
1216 | break; |
1217 | case '\b': | |
43e526b9 | 1218 | do_fputs ("\\b", stream); |
c5aa993b JM |
1219 | break; |
1220 | case '\t': | |
43e526b9 | 1221 | do_fputs ("\\t", stream); |
c5aa993b JM |
1222 | break; |
1223 | case '\f': | |
43e526b9 | 1224 | do_fputs ("\\f", stream); |
c5aa993b JM |
1225 | break; |
1226 | case '\r': | |
43e526b9 | 1227 | do_fputs ("\\r", stream); |
c5aa993b JM |
1228 | break; |
1229 | case '\033': | |
43e526b9 | 1230 | do_fputs ("\\e", stream); |
c5aa993b JM |
1231 | break; |
1232 | case '\007': | |
43e526b9 | 1233 | do_fputs ("\\a", stream); |
c5aa993b JM |
1234 | break; |
1235 | default: | |
43e526b9 | 1236 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1237 | break; |
1238 | } | |
1239 | } | |
1240 | else | |
1241 | { | |
6ef284bd | 1242 | if (quoter != 0 && (c == '\\' || c == quoter)) |
43e526b9 JM |
1243 | do_fputs ("\\", stream); |
1244 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1245 | } |
c906108c | 1246 | } |
43e526b9 JM |
1247 | |
1248 | /* Print the character C on STREAM as part of the contents of a | |
1249 | literal string whose delimiter is QUOTER. Note that these routines | |
1250 | should only be call for printing things which are independent of | |
581e13c1 | 1251 | the language of the program being debugged. */ |
43e526b9 JM |
1252 | |
1253 | void | |
fba45db2 | 1254 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1255 | { |
1256 | while (*str) | |
1257 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1258 | } | |
1259 | ||
1260 | void | |
fba45db2 | 1261 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1262 | { |
1263 | while (*str) | |
1264 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1265 | } | |
1266 | ||
0876f84a DJ |
1267 | void |
1268 | fputstrn_filtered (const char *str, int n, int quoter, | |
1269 | struct ui_file *stream) | |
1270 | { | |
1271 | int i; | |
e0627e85 | 1272 | |
0876f84a DJ |
1273 | for (i = 0; i < n; i++) |
1274 | printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter); | |
1275 | } | |
1276 | ||
43e526b9 | 1277 | void |
8731e58e AC |
1278 | fputstrn_unfiltered (const char *str, int n, int quoter, |
1279 | struct ui_file *stream) | |
43e526b9 JM |
1280 | { |
1281 | int i; | |
5d502164 | 1282 | |
43e526b9 JM |
1283 | for (i = 0; i < n; i++) |
1284 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1285 | } | |
c906108c | 1286 | \f |
c5aa993b | 1287 | |
c906108c SS |
1288 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1289 | static unsigned int lines_per_page; | |
920d2a44 AC |
1290 | static void |
1291 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1292 | struct cmd_list_element *c, const char *value) | |
1293 | { | |
3e43a32a MS |
1294 | fprintf_filtered (file, |
1295 | _("Number of lines gdb thinks are in a page is %s.\n"), | |
920d2a44 AC |
1296 | value); |
1297 | } | |
eb0d3137 | 1298 | |
cbfbd72a | 1299 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1300 | static unsigned int chars_per_line; |
920d2a44 AC |
1301 | static void |
1302 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1303 | struct cmd_list_element *c, const char *value) | |
1304 | { | |
3e43a32a MS |
1305 | fprintf_filtered (file, |
1306 | _("Number of characters gdb thinks " | |
1307 | "are in a line is %s.\n"), | |
920d2a44 AC |
1308 | value); |
1309 | } | |
eb0d3137 | 1310 | |
c906108c SS |
1311 | /* Current count of lines printed on this page, chars on this line. */ |
1312 | static unsigned int lines_printed, chars_printed; | |
1313 | ||
1314 | /* Buffer and start column of buffered text, for doing smarter word- | |
1315 | wrapping. When someone calls wrap_here(), we start buffering output | |
1316 | that comes through fputs_filtered(). If we see a newline, we just | |
1317 | spit it out and forget about the wrap_here(). If we see another | |
1318 | wrap_here(), we spit it out and remember the newer one. If we see | |
1319 | the end of the line, we spit out a newline, the indent, and then | |
1320 | the buffered output. */ | |
1321 | ||
1322 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1323 | are waiting to be output (they have already been counted in chars_printed). | |
1324 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1325 | static char *wrap_buffer; | |
1326 | ||
1327 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1328 | static char *wrap_pointer; | |
1329 | ||
1330 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1331 | is non-zero. */ | |
d2c0eef4 | 1332 | static const char *wrap_indent; |
c906108c SS |
1333 | |
1334 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1335 | is not in effect. */ | |
1336 | static int wrap_column; | |
c906108c | 1337 | \f |
c5aa993b | 1338 | |
26c4b26f | 1339 | /* Initialize the number of lines per page and chars per line. */ |
eb0d3137 | 1340 | |
c906108c | 1341 | void |
fba45db2 | 1342 | init_page_info (void) |
c906108c | 1343 | { |
5da1313b JK |
1344 | if (batch_flag) |
1345 | { | |
1346 | lines_per_page = UINT_MAX; | |
1347 | chars_per_line = UINT_MAX; | |
1348 | } | |
1349 | else | |
c906108c | 1350 | #if defined(TUI) |
5ecb1806 | 1351 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1352 | #endif |
1353 | { | |
eb0d3137 | 1354 | int rows, cols; |
c906108c | 1355 | |
ec145965 EZ |
1356 | #if defined(__GO32__) |
1357 | rows = ScreenRows (); | |
1358 | cols = ScreenCols (); | |
1359 | lines_per_page = rows; | |
1360 | chars_per_line = cols; | |
1361 | #else | |
eb0d3137 MK |
1362 | /* Make sure Readline has initialized its terminal settings. */ |
1363 | rl_reset_terminal (NULL); | |
c906108c | 1364 | |
eb0d3137 MK |
1365 | /* Get the screen size from Readline. */ |
1366 | rl_get_screen_size (&rows, &cols); | |
1367 | lines_per_page = rows; | |
1368 | chars_per_line = cols; | |
c906108c | 1369 | |
1a66331e PM |
1370 | /* Readline should have fetched the termcap entry for us. |
1371 | Only try to use tgetnum function if rl_get_screen_size | |
1372 | did not return a useful value. */ | |
a121b7c1 | 1373 | if (((rows <= 0) && (tgetnum ((char *) "li") < 0)) |
e681cf3f EZ |
1374 | /* Also disable paging if inside Emacs. $EMACS was used |
1375 | before Emacs v25.1, $INSIDE_EMACS is used since then. */ | |
1376 | || getenv ("EMACS") || getenv ("INSIDE_EMACS")) | |
eb0d3137 | 1377 | { |
1a66331e PM |
1378 | /* The number of lines per page is not mentioned in the terminal |
1379 | description or EMACS evironment variable is set. This probably | |
1380 | means that paging is not useful, so disable paging. */ | |
eb0d3137 MK |
1381 | lines_per_page = UINT_MAX; |
1382 | } | |
c906108c | 1383 | |
c906108c | 1384 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1385 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1386 | lines_per_page = UINT_MAX; |
eb0d3137 | 1387 | #endif |
ec145965 | 1388 | } |
eb0d3137 | 1389 | |
24b73f8e PP |
1390 | /* We handle SIGWINCH ourselves. */ |
1391 | rl_catch_sigwinch = 0; | |
1392 | ||
eb0d3137 | 1393 | set_screen_size (); |
c5aa993b | 1394 | set_width (); |
c906108c SS |
1395 | } |
1396 | ||
2437fd32 GB |
1397 | /* Return nonzero if filtered printing is initialized. */ |
1398 | int | |
1399 | filtered_printing_initialized (void) | |
1400 | { | |
1401 | return wrap_buffer != NULL; | |
1402 | } | |
1403 | ||
b95de2b7 TT |
1404 | set_batch_flag_and_restore_page_info::set_batch_flag_and_restore_page_info () |
1405 | : m_save_lines_per_page (lines_per_page), | |
1406 | m_save_chars_per_line (chars_per_line), | |
1407 | m_save_batch_flag (batch_flag) | |
5da1313b | 1408 | { |
b95de2b7 TT |
1409 | batch_flag = 1; |
1410 | init_page_info (); | |
5da1313b JK |
1411 | } |
1412 | ||
b95de2b7 | 1413 | set_batch_flag_and_restore_page_info::~set_batch_flag_and_restore_page_info () |
5da1313b | 1414 | { |
b95de2b7 TT |
1415 | batch_flag = m_save_batch_flag; |
1416 | chars_per_line = m_save_chars_per_line; | |
1417 | lines_per_page = m_save_lines_per_page; | |
5da1313b | 1418 | |
b95de2b7 TT |
1419 | set_screen_size (); |
1420 | set_width (); | |
5da1313b JK |
1421 | } |
1422 | ||
eb0d3137 MK |
1423 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1424 | ||
1425 | static void | |
1426 | set_screen_size (void) | |
1427 | { | |
1428 | int rows = lines_per_page; | |
1429 | int cols = chars_per_line; | |
1430 | ||
1431 | if (rows <= 0) | |
1432 | rows = INT_MAX; | |
1433 | ||
1434 | if (cols <= 0) | |
0caa462c | 1435 | cols = INT_MAX; |
eb0d3137 MK |
1436 | |
1437 | /* Update Readline's idea of the terminal size. */ | |
1438 | rl_set_screen_size (rows, cols); | |
1439 | } | |
1440 | ||
1441 | /* Reinitialize WRAP_BUFFER according to the current value of | |
1442 | CHARS_PER_LINE. */ | |
1443 | ||
c906108c | 1444 | static void |
fba45db2 | 1445 | set_width (void) |
c906108c SS |
1446 | { |
1447 | if (chars_per_line == 0) | |
c5aa993b | 1448 | init_page_info (); |
c906108c SS |
1449 | |
1450 | if (!wrap_buffer) | |
1451 | { | |
1452 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1453 | wrap_buffer[0] = '\0'; | |
1454 | } | |
1455 | else | |
1456 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 1457 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
1458 | } |
1459 | ||
c5aa993b | 1460 | static void |
eb4c3f4a | 1461 | set_width_command (const char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1462 | { |
eb0d3137 | 1463 | set_screen_size (); |
c906108c SS |
1464 | set_width (); |
1465 | } | |
1466 | ||
eb0d3137 | 1467 | static void |
eb4c3f4a | 1468 | set_height_command (const char *args, int from_tty, struct cmd_list_element *c) |
eb0d3137 MK |
1469 | { |
1470 | set_screen_size (); | |
1471 | } | |
1472 | ||
d6e5e7f7 PP |
1473 | /* See utils.h. */ |
1474 | ||
1475 | void | |
1476 | set_screen_width_and_height (int width, int height) | |
1477 | { | |
1478 | lines_per_page = height; | |
1479 | chars_per_line = width; | |
1480 | ||
1481 | set_screen_size (); | |
1482 | set_width (); | |
1483 | } | |
1484 | ||
c906108c | 1485 | /* Wait, so the user can read what's on the screen. Prompt the user |
720d2e96 PA |
1486 | to continue by pressing RETURN. 'q' is also provided because |
1487 | telling users what to do in the prompt is more user-friendly than | |
1488 | expecting them to think of Ctrl-C/SIGINT. */ | |
c906108c SS |
1489 | |
1490 | static void | |
fba45db2 | 1491 | prompt_for_continue (void) |
c906108c SS |
1492 | { |
1493 | char *ignore; | |
1494 | char cont_prompt[120]; | |
dcb07cfa | 1495 | struct cleanup *old_chain = make_cleanup (null_cleanup, NULL); |
260c0b2a DE |
1496 | /* Used to add duration we waited for user to respond to |
1497 | prompt_for_continue_wait_time. */ | |
dcb07cfa PA |
1498 | using namespace std::chrono; |
1499 | steady_clock::time_point prompt_started = steady_clock::now (); | |
c906108c SS |
1500 | |
1501 | if (annotation_level > 1) | |
a3f17187 | 1502 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
1503 | |
1504 | strcpy (cont_prompt, | |
1505 | "---Type <return> to continue, or q <return> to quit---"); | |
1506 | if (annotation_level > 1) | |
1507 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1508 | ||
720d2e96 PA |
1509 | /* We must do this *before* we call gdb_readline_wrapper, else it |
1510 | will eventually call us -- thinking that we're trying to print | |
1511 | beyond the end of the screen. */ | |
c906108c SS |
1512 | reinitialize_more_filter (); |
1513 | ||
223ffa71 | 1514 | scoped_input_handler prepare_input; |
82584158 | 1515 | |
720d2e96 PA |
1516 | /* Call gdb_readline_wrapper, not readline, in order to keep an |
1517 | event loop running. */ | |
b4f5539f | 1518 | ignore = gdb_readline_wrapper (cont_prompt); |
80dbc9fd | 1519 | make_cleanup (xfree, ignore); |
c906108c | 1520 | |
260c0b2a | 1521 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
dcb07cfa | 1522 | prompt_for_continue_wait_time += steady_clock::now () - prompt_started; |
260c0b2a | 1523 | |
c906108c | 1524 | if (annotation_level > 1) |
a3f17187 | 1525 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c | 1526 | |
80dbc9fd | 1527 | if (ignore != NULL) |
c906108c SS |
1528 | { |
1529 | char *p = ignore; | |
5d502164 | 1530 | |
c906108c SS |
1531 | while (*p == ' ' || *p == '\t') |
1532 | ++p; | |
1533 | if (p[0] == 'q') | |
1690b616 SL |
1534 | /* Do not call quit here; there is no possibility of SIGINT. */ |
1535 | throw_quit ("Quit"); | |
c906108c | 1536 | } |
c906108c SS |
1537 | |
1538 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1539 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1540 | reinitialize_more_filter (); | |
1541 | ||
581e13c1 | 1542 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ |
80dbc9fd PA |
1543 | |
1544 | do_cleanups (old_chain); | |
c906108c SS |
1545 | } |
1546 | ||
26c4b26f | 1547 | /* Initialize timer to keep track of how long we waited for the user. */ |
bd712aed DE |
1548 | |
1549 | void | |
1550 | reset_prompt_for_continue_wait_time (void) | |
1551 | { | |
dcb07cfa | 1552 | using namespace std::chrono; |
bd712aed | 1553 | |
dcb07cfa | 1554 | prompt_for_continue_wait_time = steady_clock::duration::zero (); |
bd712aed DE |
1555 | } |
1556 | ||
1557 | /* Fetch the cumulative time spent in prompt_for_continue. */ | |
1558 | ||
dcb07cfa PA |
1559 | std::chrono::steady_clock::duration |
1560 | get_prompt_for_continue_wait_time () | |
bd712aed DE |
1561 | { |
1562 | return prompt_for_continue_wait_time; | |
1563 | } | |
1564 | ||
c906108c SS |
1565 | /* Reinitialize filter; ie. tell it to reset to original values. */ |
1566 | ||
1567 | void | |
fba45db2 | 1568 | reinitialize_more_filter (void) |
c906108c SS |
1569 | { |
1570 | lines_printed = 0; | |
1571 | chars_printed = 0; | |
1572 | } | |
1573 | ||
1574 | /* Indicate that if the next sequence of characters overflows the line, | |
581e13c1 | 1575 | a newline should be inserted here rather than when it hits the end. |
c906108c SS |
1576 | If INDENT is non-null, it is a string to be printed to indent the |
1577 | wrapped part on the next line. INDENT must remain accessible until | |
1578 | the next call to wrap_here() or until a newline is printed through | |
1579 | fputs_filtered(). | |
1580 | ||
1581 | If the line is already overfull, we immediately print a newline and | |
1582 | the indentation, and disable further wrapping. | |
1583 | ||
1584 | If we don't know the width of lines, but we know the page height, | |
1585 | we must not wrap words, but should still keep track of newlines | |
1586 | that were explicitly printed. | |
1587 | ||
1588 | INDENT should not contain tabs, as that will mess up the char count | |
1589 | on the next line. FIXME. | |
1590 | ||
1591 | This routine is guaranteed to force out any output which has been | |
1592 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1593 | used to force out output from the wrap_buffer. */ | |
1594 | ||
1595 | void | |
d2c0eef4 | 1596 | wrap_here (const char *indent) |
c906108c | 1597 | { |
581e13c1 | 1598 | /* This should have been allocated, but be paranoid anyway. */ |
c906108c | 1599 | if (!wrap_buffer) |
3e43a32a MS |
1600 | internal_error (__FILE__, __LINE__, |
1601 | _("failed internal consistency check")); | |
c906108c SS |
1602 | |
1603 | if (wrap_buffer[0]) | |
1604 | { | |
1605 | *wrap_pointer = '\0'; | |
1606 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1607 | } | |
1608 | wrap_pointer = wrap_buffer; | |
1609 | wrap_buffer[0] = '\0'; | |
3e43a32a | 1610 | if (chars_per_line == UINT_MAX) /* No line overflow checking. */ |
c906108c SS |
1611 | { |
1612 | wrap_column = 0; | |
1613 | } | |
1614 | else if (chars_printed >= chars_per_line) | |
1615 | { | |
1616 | puts_filtered ("\n"); | |
1617 | if (indent != NULL) | |
1618 | puts_filtered (indent); | |
1619 | wrap_column = 0; | |
1620 | } | |
1621 | else | |
1622 | { | |
1623 | wrap_column = chars_printed; | |
1624 | if (indent == NULL) | |
1625 | wrap_indent = ""; | |
1626 | else | |
1627 | wrap_indent = indent; | |
1628 | } | |
1629 | } | |
1630 | ||
4a351cef | 1631 | /* Print input string to gdb_stdout, filtered, with wrap, |
581e13c1 | 1632 | arranging strings in columns of n chars. String can be |
4a351cef AF |
1633 | right or left justified in the column. Never prints |
1634 | trailing spaces. String should never be longer than | |
1635 | width. FIXME: this could be useful for the EXAMINE | |
581e13c1 | 1636 | command, which currently doesn't tabulate very well. */ |
4a351cef AF |
1637 | |
1638 | void | |
1639 | puts_filtered_tabular (char *string, int width, int right) | |
1640 | { | |
1641 | int spaces = 0; | |
1642 | int stringlen; | |
1643 | char *spacebuf; | |
1644 | ||
1645 | gdb_assert (chars_per_line > 0); | |
1646 | if (chars_per_line == UINT_MAX) | |
1647 | { | |
1648 | fputs_filtered (string, gdb_stdout); | |
1649 | fputs_filtered ("\n", gdb_stdout); | |
1650 | return; | |
1651 | } | |
1652 | ||
1653 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
1654 | fputs_filtered ("\n", gdb_stdout); | |
1655 | ||
1656 | if (width >= chars_per_line) | |
1657 | width = chars_per_line - 1; | |
1658 | ||
1659 | stringlen = strlen (string); | |
1660 | ||
1661 | if (chars_printed > 0) | |
1662 | spaces = width - (chars_printed - 1) % width - 1; | |
1663 | if (right) | |
1664 | spaces += width - stringlen; | |
1665 | ||
224c3ddb | 1666 | spacebuf = (char *) alloca (spaces + 1); |
4a351cef AF |
1667 | spacebuf[spaces] = '\0'; |
1668 | while (spaces--) | |
1669 | spacebuf[spaces] = ' '; | |
1670 | ||
1671 | fputs_filtered (spacebuf, gdb_stdout); | |
1672 | fputs_filtered (string, gdb_stdout); | |
1673 | } | |
1674 | ||
1675 | ||
c906108c | 1676 | /* Ensure that whatever gets printed next, using the filtered output |
581e13c1 | 1677 | commands, starts at the beginning of the line. I.e. if there is |
c906108c | 1678 | any pending output for the current line, flush it and start a new |
581e13c1 | 1679 | line. Otherwise do nothing. */ |
c906108c SS |
1680 | |
1681 | void | |
fba45db2 | 1682 | begin_line (void) |
c906108c SS |
1683 | { |
1684 | if (chars_printed > 0) | |
1685 | { | |
1686 | puts_filtered ("\n"); | |
1687 | } | |
1688 | } | |
1689 | ||
ac9a91a7 | 1690 | |
c906108c SS |
1691 | /* Like fputs but if FILTER is true, pause after every screenful. |
1692 | ||
1693 | Regardless of FILTER can wrap at points other than the final | |
1694 | character of a line. | |
1695 | ||
1696 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
1697 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
1698 | anything. | |
1699 | ||
1700 | Note that a longjmp to top level may occur in this routine (only if | |
1701 | FILTER is true) (since prompt_for_continue may do so) so this | |
1702 | routine should not be called when cleanups are not in place. */ | |
1703 | ||
1704 | static void | |
fba45db2 KB |
1705 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
1706 | int filter) | |
c906108c SS |
1707 | { |
1708 | const char *lineptr; | |
1709 | ||
1710 | if (linebuffer == 0) | |
1711 | return; | |
1712 | ||
1713 | /* Don't do any filtering if it is disabled. */ | |
390a8aca | 1714 | if (stream != gdb_stdout |
b2e7f004 JK |
1715 | || !pagination_enabled |
1716 | || batch_flag | |
390a8aca | 1717 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) |
58dadb1b | 1718 | || top_level_interpreter () == NULL |
112e8700 | 1719 | || interp_ui_out (top_level_interpreter ())->is_mi_like_p ()) |
c906108c SS |
1720 | { |
1721 | fputs_unfiltered (linebuffer, stream); | |
1722 | return; | |
1723 | } | |
1724 | ||
1725 | /* Go through and output each character. Show line extension | |
1726 | when this is necessary; prompt user for new page when this is | |
1727 | necessary. */ | |
c5aa993b | 1728 | |
c906108c SS |
1729 | lineptr = linebuffer; |
1730 | while (*lineptr) | |
1731 | { | |
1732 | /* Possible new page. */ | |
8731e58e | 1733 | if (filter && (lines_printed >= lines_per_page - 1)) |
c906108c SS |
1734 | prompt_for_continue (); |
1735 | ||
1736 | while (*lineptr && *lineptr != '\n') | |
1737 | { | |
1738 | /* Print a single line. */ | |
1739 | if (*lineptr == '\t') | |
1740 | { | |
1741 | if (wrap_column) | |
1742 | *wrap_pointer++ = '\t'; | |
1743 | else | |
1744 | fputc_unfiltered ('\t', stream); | |
1745 | /* Shifting right by 3 produces the number of tab stops | |
1746 | we have already passed, and then adding one and | |
c5aa993b | 1747 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
1748 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
1749 | lineptr++; | |
1750 | } | |
1751 | else | |
1752 | { | |
1753 | if (wrap_column) | |
1754 | *wrap_pointer++ = *lineptr; | |
1755 | else | |
c5aa993b | 1756 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
1757 | chars_printed++; |
1758 | lineptr++; | |
1759 | } | |
c5aa993b | 1760 | |
c906108c SS |
1761 | if (chars_printed >= chars_per_line) |
1762 | { | |
1763 | unsigned int save_chars = chars_printed; | |
1764 | ||
1765 | chars_printed = 0; | |
1766 | lines_printed++; | |
1767 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
1768 | if chars_per_line is right, we probably just overflowed |
1769 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
1770 | if (wrap_column) |
1771 | fputc_unfiltered ('\n', stream); | |
1772 | ||
1773 | /* Possible new page. */ | |
1774 | if (lines_printed >= lines_per_page - 1) | |
1775 | prompt_for_continue (); | |
1776 | ||
581e13c1 | 1777 | /* Now output indentation and wrapped string. */ |
c906108c SS |
1778 | if (wrap_column) |
1779 | { | |
1780 | fputs_unfiltered (wrap_indent, stream); | |
581e13c1 MS |
1781 | *wrap_pointer = '\0'; /* Null-terminate saved stuff, */ |
1782 | fputs_unfiltered (wrap_buffer, stream); /* and eject it. */ | |
c906108c SS |
1783 | /* FIXME, this strlen is what prevents wrap_indent from |
1784 | containing tabs. However, if we recurse to print it | |
1785 | and count its chars, we risk trouble if wrap_indent is | |
581e13c1 | 1786 | longer than (the user settable) chars_per_line. |
c906108c SS |
1787 | Note also that this can set chars_printed > chars_per_line |
1788 | if we are printing a long string. */ | |
1789 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 1790 | + (save_chars - wrap_column); |
c906108c SS |
1791 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
1792 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
1793 | wrap_column = 0; /* And disable fancy wrap */ |
1794 | } | |
c906108c SS |
1795 | } |
1796 | } | |
1797 | ||
1798 | if (*lineptr == '\n') | |
1799 | { | |
1800 | chars_printed = 0; | |
3e43a32a MS |
1801 | wrap_here ((char *) 0); /* Spit out chars, cancel |
1802 | further wraps. */ | |
c906108c SS |
1803 | lines_printed++; |
1804 | fputc_unfiltered ('\n', stream); | |
1805 | lineptr++; | |
1806 | } | |
1807 | } | |
1808 | } | |
1809 | ||
1810 | void | |
fba45db2 | 1811 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
1812 | { |
1813 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1814 | } | |
1815 | ||
1816 | int | |
fba45db2 | 1817 | putchar_unfiltered (int c) |
c906108c | 1818 | { |
11cf8741 | 1819 | char buf = c; |
e0627e85 | 1820 | |
d9fcf2fb | 1821 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
1822 | return c; |
1823 | } | |
1824 | ||
d1f4cff8 AC |
1825 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
1826 | May return nonlocally. */ | |
1827 | ||
1828 | int | |
1829 | putchar_filtered (int c) | |
1830 | { | |
1831 | return fputc_filtered (c, gdb_stdout); | |
1832 | } | |
1833 | ||
c906108c | 1834 | int |
fba45db2 | 1835 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 1836 | { |
11cf8741 | 1837 | char buf = c; |
e0627e85 | 1838 | |
d9fcf2fb | 1839 | ui_file_write (stream, &buf, 1); |
c906108c SS |
1840 | return c; |
1841 | } | |
1842 | ||
1843 | int | |
fba45db2 | 1844 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
1845 | { |
1846 | char buf[2]; | |
1847 | ||
1848 | buf[0] = c; | |
1849 | buf[1] = 0; | |
1850 | fputs_filtered (buf, stream); | |
1851 | return c; | |
1852 | } | |
1853 | ||
1854 | /* puts_debug is like fputs_unfiltered, except it prints special | |
1855 | characters in printable fashion. */ | |
1856 | ||
1857 | void | |
fba45db2 | 1858 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
1859 | { |
1860 | int ch; | |
1861 | ||
1862 | /* Print prefix and suffix after each line. */ | |
1863 | static int new_line = 1; | |
1864 | static int return_p = 0; | |
a121b7c1 PA |
1865 | static const char *prev_prefix = ""; |
1866 | static const char *prev_suffix = ""; | |
c906108c SS |
1867 | |
1868 | if (*string == '\n') | |
1869 | return_p = 0; | |
1870 | ||
1871 | /* If the prefix is changing, print the previous suffix, a new line, | |
1872 | and the new prefix. */ | |
c5aa993b | 1873 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 1874 | { |
9846de1b JM |
1875 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
1876 | fputs_unfiltered ("\n", gdb_stdlog); | |
1877 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
1878 | } |
1879 | ||
1880 | /* Print prefix if we printed a newline during the previous call. */ | |
1881 | if (new_line) | |
1882 | { | |
1883 | new_line = 0; | |
9846de1b | 1884 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
1885 | } |
1886 | ||
1887 | prev_prefix = prefix; | |
1888 | prev_suffix = suffix; | |
1889 | ||
1890 | /* Output characters in a printable format. */ | |
1891 | while ((ch = *string++) != '\0') | |
1892 | { | |
1893 | switch (ch) | |
c5aa993b | 1894 | { |
c906108c SS |
1895 | default: |
1896 | if (isprint (ch)) | |
9846de1b | 1897 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
1898 | |
1899 | else | |
9846de1b | 1900 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
1901 | break; |
1902 | ||
c5aa993b JM |
1903 | case '\\': |
1904 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
1905 | break; | |
1906 | case '\b': | |
1907 | fputs_unfiltered ("\\b", gdb_stdlog); | |
1908 | break; | |
1909 | case '\f': | |
1910 | fputs_unfiltered ("\\f", gdb_stdlog); | |
1911 | break; | |
1912 | case '\n': | |
1913 | new_line = 1; | |
1914 | fputs_unfiltered ("\\n", gdb_stdlog); | |
1915 | break; | |
1916 | case '\r': | |
1917 | fputs_unfiltered ("\\r", gdb_stdlog); | |
1918 | break; | |
1919 | case '\t': | |
1920 | fputs_unfiltered ("\\t", gdb_stdlog); | |
1921 | break; | |
1922 | case '\v': | |
1923 | fputs_unfiltered ("\\v", gdb_stdlog); | |
1924 | break; | |
1925 | } | |
c906108c SS |
1926 | |
1927 | return_p = ch == '\r'; | |
1928 | } | |
1929 | ||
1930 | /* Print suffix if we printed a newline. */ | |
1931 | if (new_line) | |
1932 | { | |
9846de1b JM |
1933 | fputs_unfiltered (suffix, gdb_stdlog); |
1934 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
1935 | } |
1936 | } | |
1937 | ||
1938 | ||
1939 | /* Print a variable number of ARGS using format FORMAT. If this | |
1940 | information is going to put the amount written (since the last call | |
1941 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
1942 | call prompt_for_continue to get the users permision to continue. | |
1943 | ||
1944 | Unlike fprintf, this function does not return a value. | |
1945 | ||
1946 | We implement three variants, vfprintf (takes a vararg list and stream), | |
1947 | fprintf (takes a stream to write on), and printf (the usual). | |
1948 | ||
1949 | Note also that a longjmp to top level may occur in this routine | |
1950 | (since prompt_for_continue may do so) so this routine should not be | |
1951 | called when cleanups are not in place. */ | |
1952 | ||
1953 | static void | |
fba45db2 KB |
1954 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
1955 | va_list args, int filter) | |
c906108c | 1956 | { |
200aa7b1 TT |
1957 | std::string linebuffer = string_vprintf (format, args); |
1958 | fputs_maybe_filtered (linebuffer.c_str (), stream, filter); | |
c906108c SS |
1959 | } |
1960 | ||
1961 | ||
1962 | void | |
fba45db2 | 1963 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
1964 | { |
1965 | vfprintf_maybe_filtered (stream, format, args, 1); | |
1966 | } | |
1967 | ||
1968 | void | |
fba45db2 | 1969 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c | 1970 | { |
200aa7b1 | 1971 | std::string linebuffer = string_vprintf (format, args); |
75feb17d DJ |
1972 | if (debug_timestamp && stream == gdb_stdlog) |
1973 | { | |
dcb07cfa | 1974 | using namespace std::chrono; |
6e5abd65 | 1975 | int len, need_nl; |
75feb17d | 1976 | |
dcb07cfa PA |
1977 | steady_clock::time_point now = steady_clock::now (); |
1978 | seconds s = duration_cast<seconds> (now.time_since_epoch ()); | |
1979 | microseconds us = duration_cast<microseconds> (now.time_since_epoch () - s); | |
6e5abd65 | 1980 | |
200aa7b1 | 1981 | len = linebuffer.size (); |
6e5abd65 PA |
1982 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); |
1983 | ||
dcb07cfa PA |
1984 | std::string timestamp = string_printf ("%ld.%06ld %s%s", |
1985 | (long) s.count (), | |
1986 | (long) us.count (), | |
200aa7b1 TT |
1987 | linebuffer.c_str (), |
1988 | need_nl ? "\n": ""); | |
dcb07cfa | 1989 | fputs_unfiltered (timestamp.c_str (), stream); |
75feb17d | 1990 | } |
6e5abd65 | 1991 | else |
200aa7b1 | 1992 | fputs_unfiltered (linebuffer.c_str (), stream); |
c906108c SS |
1993 | } |
1994 | ||
1995 | void | |
fba45db2 | 1996 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
1997 | { |
1998 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
1999 | } | |
2000 | ||
2001 | void | |
fba45db2 | 2002 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2003 | { |
2004 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2005 | } | |
2006 | ||
c906108c | 2007 | void |
8731e58e | 2008 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2009 | { |
2010 | va_list args; | |
e0627e85 | 2011 | |
c906108c | 2012 | va_start (args, format); |
c906108c SS |
2013 | vfprintf_filtered (stream, format, args); |
2014 | va_end (args); | |
2015 | } | |
2016 | ||
c906108c | 2017 | void |
8731e58e | 2018 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2019 | { |
2020 | va_list args; | |
e0627e85 | 2021 | |
c906108c | 2022 | va_start (args, format); |
c906108c SS |
2023 | vfprintf_unfiltered (stream, format, args); |
2024 | va_end (args); | |
2025 | } | |
2026 | ||
2027 | /* Like fprintf_filtered, but prints its result indented. | |
2028 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2029 | ||
c906108c | 2030 | void |
8731e58e AC |
2031 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2032 | ...) | |
c906108c SS |
2033 | { |
2034 | va_list args; | |
e0627e85 | 2035 | |
c906108c | 2036 | va_start (args, format); |
c906108c SS |
2037 | print_spaces_filtered (spaces, stream); |
2038 | ||
2039 | vfprintf_filtered (stream, format, args); | |
2040 | va_end (args); | |
2041 | } | |
2042 | ||
2043 | ||
c906108c | 2044 | void |
8731e58e | 2045 | printf_filtered (const char *format, ...) |
c906108c SS |
2046 | { |
2047 | va_list args; | |
e0627e85 | 2048 | |
c906108c | 2049 | va_start (args, format); |
c906108c SS |
2050 | vfprintf_filtered (gdb_stdout, format, args); |
2051 | va_end (args); | |
2052 | } | |
2053 | ||
2054 | ||
c906108c | 2055 | void |
8731e58e | 2056 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2057 | { |
2058 | va_list args; | |
e0627e85 | 2059 | |
c906108c | 2060 | va_start (args, format); |
c906108c SS |
2061 | vfprintf_unfiltered (gdb_stdout, format, args); |
2062 | va_end (args); | |
2063 | } | |
2064 | ||
2065 | /* Like printf_filtered, but prints it's result indented. | |
2066 | Called as printfi_filtered (spaces, format, ...); */ | |
2067 | ||
c906108c | 2068 | void |
8731e58e | 2069 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2070 | { |
2071 | va_list args; | |
e0627e85 | 2072 | |
c906108c | 2073 | va_start (args, format); |
c906108c SS |
2074 | print_spaces_filtered (spaces, gdb_stdout); |
2075 | vfprintf_filtered (gdb_stdout, format, args); | |
2076 | va_end (args); | |
2077 | } | |
2078 | ||
2079 | /* Easy -- but watch out! | |
2080 | ||
2081 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2082 | This one doesn't, and had better not! */ | |
2083 | ||
2084 | void | |
fba45db2 | 2085 | puts_filtered (const char *string) |
c906108c SS |
2086 | { |
2087 | fputs_filtered (string, gdb_stdout); | |
2088 | } | |
2089 | ||
2090 | void | |
fba45db2 | 2091 | puts_unfiltered (const char *string) |
c906108c SS |
2092 | { |
2093 | fputs_unfiltered (string, gdb_stdout); | |
2094 | } | |
2095 | ||
2096 | /* Return a pointer to N spaces and a null. The pointer is good | |
2097 | until the next call to here. */ | |
2098 | char * | |
fba45db2 | 2099 | n_spaces (int n) |
c906108c | 2100 | { |
392a587b JM |
2101 | char *t; |
2102 | static char *spaces = 0; | |
2103 | static int max_spaces = -1; | |
c906108c SS |
2104 | |
2105 | if (n > max_spaces) | |
2106 | { | |
2107 | if (spaces) | |
b8c9b27d | 2108 | xfree (spaces); |
c5aa993b JM |
2109 | spaces = (char *) xmalloc (n + 1); |
2110 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2111 | *--t = ' '; |
2112 | spaces[n] = '\0'; | |
2113 | max_spaces = n; | |
2114 | } | |
2115 | ||
2116 | return spaces + max_spaces - n; | |
2117 | } | |
2118 | ||
2119 | /* Print N spaces. */ | |
2120 | void | |
fba45db2 | 2121 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2122 | { |
2123 | fputs_filtered (n_spaces (n), stream); | |
2124 | } | |
2125 | \f | |
4a351cef | 2126 | /* C++/ObjC demangler stuff. */ |
c906108c | 2127 | |
389e51db AC |
2128 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2129 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2130 | If the name is not mangled, or the language for the name is unknown, or | |
581e13c1 | 2131 | demangling is off, the name is printed in its "raw" form. */ |
c906108c SS |
2132 | |
2133 | void | |
0d5cff50 | 2134 | fprintf_symbol_filtered (struct ui_file *stream, const char *name, |
8731e58e | 2135 | enum language lang, int arg_mode) |
c906108c SS |
2136 | { |
2137 | char *demangled; | |
2138 | ||
2139 | if (name != NULL) | |
2140 | { | |
2141 | /* If user wants to see raw output, no problem. */ | |
2142 | if (!demangle) | |
2143 | { | |
2144 | fputs_filtered (name, stream); | |
2145 | } | |
2146 | else | |
2147 | { | |
9a3d7dfd | 2148 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2149 | fputs_filtered (demangled ? demangled : name, stream); |
2150 | if (demangled != NULL) | |
2151 | { | |
b8c9b27d | 2152 | xfree (demangled); |
c906108c SS |
2153 | } |
2154 | } | |
2155 | } | |
2156 | } | |
2157 | ||
0662b6a7 PA |
2158 | /* True if CH is a character that can be part of a symbol name. I.e., |
2159 | either a number, a letter, or a '_'. */ | |
2160 | ||
2161 | static bool | |
2162 | valid_identifier_name_char (int ch) | |
2163 | { | |
2164 | return (isalnum (ch) || ch == '_'); | |
2165 | } | |
2166 | ||
2167 | /* Skip to end of token, or to END, whatever comes first. Input is | |
2168 | assumed to be a C++ operator name. */ | |
2169 | ||
2170 | static const char * | |
2171 | cp_skip_operator_token (const char *token, const char *end) | |
2172 | { | |
2173 | const char *p = token; | |
2174 | while (p != end && !isspace (*p) && *p != '(') | |
2175 | { | |
2176 | if (valid_identifier_name_char (*p)) | |
2177 | { | |
2178 | while (p != end && valid_identifier_name_char (*p)) | |
2179 | p++; | |
2180 | return p; | |
2181 | } | |
2182 | else | |
2183 | { | |
2184 | /* Note, ordered such that among ops that share a prefix, | |
2185 | longer comes first. This is so that the loop below can | |
2186 | bail on first match. */ | |
2187 | static const char *ops[] = | |
2188 | { | |
2189 | "[", | |
2190 | "]", | |
2191 | "~", | |
2192 | ",", | |
2193 | "-=", "--", "->", "-", | |
2194 | "+=", "++", "+", | |
2195 | "*=", "*", | |
2196 | "/=", "/", | |
2197 | "%=", "%", | |
2198 | "|=", "||", "|", | |
2199 | "&=", "&&", "&", | |
2200 | "^=", "^", | |
2201 | "!=", "!", | |
2202 | "<<=", "<=", "<<", "<", | |
2203 | ">>=", ">=", ">>", ">", | |
2204 | "==", "=", | |
2205 | }; | |
2206 | ||
2207 | for (const char *op : ops) | |
2208 | { | |
2209 | size_t oplen = strlen (op); | |
2210 | size_t lencmp = std::min<size_t> (oplen, end - p); | |
2211 | ||
2212 | if (strncmp (p, op, lencmp) == 0) | |
2213 | return p + lencmp; | |
2214 | } | |
2215 | /* Some unidentified character. Return it. */ | |
2216 | return p + 1; | |
2217 | } | |
2218 | } | |
2219 | ||
2220 | return p; | |
2221 | } | |
2222 | ||
2223 | /* Advance STRING1/STRING2 past whitespace. */ | |
2224 | ||
2225 | static void | |
2226 | skip_ws (const char *&string1, const char *&string2, const char *end_str2) | |
2227 | { | |
2228 | while (isspace (*string1)) | |
2229 | string1++; | |
2230 | while (string2 < end_str2 && isspace (*string2)) | |
2231 | string2++; | |
2232 | } | |
2233 | ||
2234 | /* True if STRING points at the start of a C++ operator name. START | |
2235 | is the start of the string that STRING points to, hence when | |
2236 | reading backwards, we must not read any character before START. */ | |
2237 | ||
2238 | static bool | |
2239 | cp_is_operator (const char *string, const char *start) | |
2240 | { | |
2241 | return ((string == start | |
2242 | || !valid_identifier_name_char (string[-1])) | |
2243 | && strncmp (string, CP_OPERATOR_STR, CP_OPERATOR_LEN) == 0 | |
2244 | && !valid_identifier_name_char (string[CP_OPERATOR_LEN])); | |
2245 | } | |
2246 | ||
bd69330d PA |
2247 | /* If *NAME points at an ABI tag, skip it and return true. Otherwise |
2248 | leave *NAME unmodified and return false. (see GCC's abi_tag | |
2249 | attribute), such names are demangled as e.g., | |
2250 | "function[abi:cxx11]()". */ | |
2251 | ||
2252 | static bool | |
2253 | skip_abi_tag (const char **name) | |
2254 | { | |
2255 | const char *p = *name; | |
2256 | ||
2257 | if (startswith (p, "[abi:")) | |
2258 | { | |
2259 | p += 5; | |
2260 | ||
2261 | while (valid_identifier_name_char (*p)) | |
2262 | p++; | |
2263 | ||
2264 | if (*p == ']') | |
2265 | { | |
2266 | p++; | |
2267 | *name = p; | |
2268 | return true; | |
2269 | } | |
2270 | } | |
2271 | return false; | |
2272 | } | |
2273 | ||
b5ec771e | 2274 | /* See utils.h. */ |
1d550c82 | 2275 | |
b5ec771e | 2276 | int |
1d550c82 | 2277 | strncmp_iw_with_mode (const char *string1, const char *string2, |
0662b6a7 | 2278 | size_t string2_len, strncmp_iw_mode mode, |
bd69330d PA |
2279 | enum language language, |
2280 | completion_match_for_lcd *match_for_lcd) | |
c906108c | 2281 | { |
0662b6a7 | 2282 | const char *string1_start = string1; |
1d550c82 | 2283 | const char *end_str2 = string2 + string2_len; |
0662b6a7 PA |
2284 | bool skip_spaces = true; |
2285 | bool have_colon_op = (language == language_cplus | |
2286 | || language == language_rust | |
2287 | || language == language_fortran); | |
1d550c82 PA |
2288 | |
2289 | while (1) | |
c906108c | 2290 | { |
0662b6a7 PA |
2291 | if (skip_spaces |
2292 | || ((isspace (*string1) && !valid_identifier_name_char (*string2)) | |
2293 | || (isspace (*string2) && !valid_identifier_name_char (*string1)))) | |
2294 | { | |
2295 | skip_ws (string1, string2, end_str2); | |
2296 | skip_spaces = false; | |
2297 | } | |
2298 | ||
bd69330d PA |
2299 | /* Skip [abi:cxx11] tags in the symbol name if the lookup name |
2300 | doesn't include them. E.g.: | |
2301 | ||
2302 | string1: function[abi:cxx1](int) | |
2303 | string2: function | |
2304 | ||
2305 | string1: function[abi:cxx1](int) | |
2306 | string2: function(int) | |
2307 | ||
2308 | string1: Struct[abi:cxx1]::function() | |
2309 | string2: Struct::function() | |
2310 | ||
2311 | string1: function(Struct[abi:cxx1], int) | |
2312 | string2: function(Struct, int) | |
2313 | */ | |
2314 | if (string2 == end_str2 | |
2315 | || (*string2 != '[' && !valid_identifier_name_char (*string2))) | |
2316 | { | |
2317 | const char *abi_start = string1; | |
2318 | ||
2319 | /* There can be more than one tag. */ | |
2320 | while (*string1 == '[' && skip_abi_tag (&string1)) | |
2321 | ; | |
2322 | ||
2323 | if (match_for_lcd != NULL && abi_start != string1) | |
2324 | match_for_lcd->mark_ignored_range (abi_start, string1); | |
2325 | ||
2326 | while (isspace (*string1)) | |
2327 | string1++; | |
2328 | } | |
2329 | ||
1d550c82 PA |
2330 | if (*string1 == '\0' || string2 == end_str2) |
2331 | break; | |
0662b6a7 PA |
2332 | |
2333 | /* Handle the :: operator. */ | |
2334 | if (have_colon_op && string1[0] == ':' && string1[1] == ':') | |
2335 | { | |
2336 | if (*string2 != ':') | |
2337 | return 1; | |
2338 | ||
2339 | string1++; | |
2340 | string2++; | |
2341 | ||
2342 | if (string2 == end_str2) | |
2343 | break; | |
2344 | ||
2345 | if (*string2 != ':') | |
2346 | return 1; | |
2347 | ||
2348 | string1++; | |
2349 | string2++; | |
2350 | ||
2351 | while (isspace (*string1)) | |
2352 | string1++; | |
2353 | while (string2 < end_str2 && isspace (*string2)) | |
2354 | string2++; | |
2355 | continue; | |
2356 | } | |
2357 | ||
2358 | /* Handle C++ user-defined operators. */ | |
2359 | else if (language == language_cplus | |
2360 | && *string1 == 'o') | |
2361 | { | |
2362 | if (cp_is_operator (string1, string1_start)) | |
2363 | { | |
2364 | /* An operator name in STRING1. Check STRING2. */ | |
2365 | size_t cmplen | |
2366 | = std::min<size_t> (CP_OPERATOR_LEN, end_str2 - string2); | |
2367 | if (strncmp (string1, string2, cmplen) != 0) | |
2368 | return 1; | |
2369 | ||
2370 | string1 += cmplen; | |
2371 | string2 += cmplen; | |
2372 | ||
2373 | if (string2 != end_str2) | |
2374 | { | |
2375 | /* Check for "operatorX" in STRING2. */ | |
2376 | if (valid_identifier_name_char (*string2)) | |
2377 | return 1; | |
2378 | ||
2379 | skip_ws (string1, string2, end_str2); | |
2380 | } | |
2381 | ||
2382 | /* Handle operator(). */ | |
2383 | if (*string1 == '(') | |
2384 | { | |
2385 | if (string2 == end_str2) | |
2386 | { | |
2387 | if (mode == strncmp_iw_mode::NORMAL) | |
2388 | return 0; | |
2389 | else | |
2390 | { | |
2391 | /* Don't break for the regular return at the | |
2392 | bottom, because "operator" should not | |
2393 | match "operator()", since this open | |
2394 | parentheses is not the parameter list | |
2395 | start. */ | |
2396 | return *string1 != '\0'; | |
2397 | } | |
2398 | } | |
2399 | ||
2400 | if (*string1 != *string2) | |
2401 | return 1; | |
2402 | ||
2403 | string1++; | |
2404 | string2++; | |
2405 | } | |
2406 | ||
2407 | while (1) | |
2408 | { | |
2409 | skip_ws (string1, string2, end_str2); | |
2410 | ||
2411 | /* Skip to end of token, or to END, whatever comes | |
2412 | first. */ | |
2413 | const char *end_str1 = string1 + strlen (string1); | |
2414 | const char *p1 = cp_skip_operator_token (string1, end_str1); | |
2415 | const char *p2 = cp_skip_operator_token (string2, end_str2); | |
2416 | ||
2417 | cmplen = std::min (p1 - string1, p2 - string2); | |
2418 | if (p2 == end_str2) | |
2419 | { | |
2420 | if (strncmp (string1, string2, cmplen) != 0) | |
2421 | return 1; | |
2422 | } | |
2423 | else | |
2424 | { | |
2425 | if (p1 - string1 != p2 - string2) | |
2426 | return 1; | |
2427 | if (strncmp (string1, string2, cmplen) != 0) | |
2428 | return 1; | |
2429 | } | |
2430 | ||
2431 | string1 += cmplen; | |
2432 | string2 += cmplen; | |
2433 | ||
2434 | if (*string1 == '\0' || string2 == end_str2) | |
2435 | break; | |
2436 | if (*string1 == '(' || *string2 == '(') | |
2437 | break; | |
2438 | } | |
2439 | ||
2440 | continue; | |
2441 | } | |
2442 | } | |
2443 | ||
559a7a62 JK |
2444 | if (case_sensitivity == case_sensitive_on && *string1 != *string2) |
2445 | break; | |
2446 | if (case_sensitivity == case_sensitive_off | |
2447 | && (tolower ((unsigned char) *string1) | |
2448 | != tolower ((unsigned char) *string2))) | |
2449 | break; | |
1d550c82 | 2450 | |
0662b6a7 PA |
2451 | /* If we see any non-whitespace, non-identifier-name character |
2452 | (any of "()<>*&" etc.), then skip spaces the next time | |
2453 | around. */ | |
2454 | if (!isspace (*string1) && !valid_identifier_name_char (*string1)) | |
2455 | skip_spaces = true; | |
2456 | ||
1d550c82 PA |
2457 | string1++; |
2458 | string2++; | |
c906108c | 2459 | } |
1d550c82 PA |
2460 | |
2461 | if (string2 == end_str2) | |
2462 | { | |
2463 | if (mode == strncmp_iw_mode::NORMAL) | |
bd69330d PA |
2464 | { |
2465 | /* Strip abi tag markers from the matched symbol name. | |
2466 | Usually the ABI marker will be found on function name | |
2467 | (automatically added because the function returns an | |
2468 | object marked with an ABI tag). However, it's also | |
2469 | possible to see a marker in one of the function | |
2470 | parameters, for example. | |
2471 | ||
2472 | string2 (lookup name): | |
2473 | func | |
2474 | symbol name: | |
2475 | function(some_struct[abi:cxx11], int) | |
2476 | ||
2477 | and for completion LCD computation we want to say that | |
2478 | the match was for: | |
2479 | function(some_struct, int) | |
2480 | */ | |
2481 | if (match_for_lcd != NULL) | |
2482 | { | |
2483 | while ((string1 = strstr (string1, "[abi:")) != NULL) | |
2484 | { | |
2485 | const char *abi_start = string1; | |
2486 | ||
2487 | /* There can be more than one tag. */ | |
2488 | while (skip_abi_tag (&string1) && *string1 == '[') | |
2489 | ; | |
2490 | ||
2491 | if (abi_start != string1) | |
2492 | match_for_lcd->mark_ignored_range (abi_start, string1); | |
2493 | } | |
2494 | } | |
2495 | ||
2496 | return 0; | |
2497 | } | |
1d550c82 PA |
2498 | else |
2499 | return (*string1 != '\0' && *string1 != '('); | |
2500 | } | |
2501 | else | |
2502 | return 1; | |
2503 | } | |
2504 | ||
2505 | /* See utils.h. */ | |
2506 | ||
2507 | int | |
2508 | strncmp_iw (const char *string1, const char *string2, size_t string2_len) | |
2509 | { | |
2510 | return strncmp_iw_with_mode (string1, string2, string2_len, | |
0662b6a7 | 2511 | strncmp_iw_mode::NORMAL, language_minimal); |
1d550c82 PA |
2512 | } |
2513 | ||
2514 | /* See utils.h. */ | |
2515 | ||
2516 | int | |
2517 | strcmp_iw (const char *string1, const char *string2) | |
2518 | { | |
2519 | return strncmp_iw_with_mode (string1, string2, strlen (string2), | |
0662b6a7 | 2520 | strncmp_iw_mode::MATCH_PARAMS, language_minimal); |
c906108c | 2521 | } |
2de7ced7 | 2522 | |
0fe19209 DC |
2523 | /* This is like strcmp except that it ignores whitespace and treats |
2524 | '(' as the first non-NULL character in terms of ordering. Like | |
2525 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2526 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2527 | according to that ordering. | |
2528 | ||
2529 | If a list is sorted according to this function and if you want to | |
2530 | find names in the list that match some fixed NAME according to | |
2531 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2532 | where this function would put NAME. | |
2533 | ||
559a7a62 JK |
2534 | This function must be neutral to the CASE_SENSITIVITY setting as the user |
2535 | may choose it during later lookup. Therefore this function always sorts | |
2536 | primarily case-insensitively and secondarily case-sensitively. | |
2537 | ||
0fe19209 DC |
2538 | Here are some examples of why using strcmp to sort is a bad idea: |
2539 | ||
2540 | Whitespace example: | |
2541 | ||
2542 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2543 | we try to do a search for "foo<char*>", strcmp will locate this | |
2544 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2545 | will start looking at strings beginning with "goo", and will never | |
2546 | see the correct match of "foo<char *>". | |
2547 | ||
2548 | Parenthesis example: | |
2549 | ||
2550 | In practice, this is less like to be an issue, but I'll give it a | |
2551 | shot. Let's assume that '$' is a legitimate character to occur in | |
2552 | symbols. (Which may well even be the case on some systems.) Then | |
2553 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2554 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2555 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2556 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2557 | "foo") is false, so it won't proceed to the actual match of | |
2558 | "foo(int)" with "foo". */ | |
2559 | ||
2560 | int | |
2561 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2562 | { | |
559a7a62 JK |
2563 | const char *saved_string1 = string1, *saved_string2 = string2; |
2564 | enum case_sensitivity case_pass = case_sensitive_off; | |
2565 | ||
2566 | for (;;) | |
0fe19209 | 2567 | { |
b11b1f88 JK |
2568 | /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'. |
2569 | Provide stub characters if we are already at the end of one of the | |
2570 | strings. */ | |
2571 | char c1 = 'X', c2 = 'X'; | |
2572 | ||
2573 | while (*string1 != '\0' && *string2 != '\0') | |
0fe19209 | 2574 | { |
b11b1f88 JK |
2575 | while (isspace (*string1)) |
2576 | string1++; | |
2577 | while (isspace (*string2)) | |
2578 | string2++; | |
2579 | ||
559a7a62 JK |
2580 | switch (case_pass) |
2581 | { | |
2582 | case case_sensitive_off: | |
2583 | c1 = tolower ((unsigned char) *string1); | |
2584 | c2 = tolower ((unsigned char) *string2); | |
2585 | break; | |
2586 | case case_sensitive_on: | |
b11b1f88 JK |
2587 | c1 = *string1; |
2588 | c2 = *string2; | |
559a7a62 JK |
2589 | break; |
2590 | } | |
b11b1f88 JK |
2591 | if (c1 != c2) |
2592 | break; | |
2593 | ||
2594 | if (*string1 != '\0') | |
2595 | { | |
2596 | string1++; | |
2597 | string2++; | |
2598 | } | |
0fe19209 | 2599 | } |
b11b1f88 JK |
2600 | |
2601 | switch (*string1) | |
0fe19209 | 2602 | { |
b11b1f88 JK |
2603 | /* Characters are non-equal unless they're both '\0'; we want to |
2604 | make sure we get the comparison right according to our | |
2605 | comparison in the cases where one of them is '\0' or '('. */ | |
2606 | case '\0': | |
2607 | if (*string2 == '\0') | |
559a7a62 | 2608 | break; |
b11b1f88 JK |
2609 | else |
2610 | return -1; | |
2611 | case '(': | |
2612 | if (*string2 == '\0') | |
2613 | return 1; | |
2614 | else | |
2615 | return -1; | |
2616 | default: | |
2617 | if (*string2 == '\0' || *string2 == '(') | |
2618 | return 1; | |
559a7a62 JK |
2619 | else if (c1 > c2) |
2620 | return 1; | |
2621 | else if (c1 < c2) | |
2622 | return -1; | |
2623 | /* PASSTHRU */ | |
0fe19209 | 2624 | } |
559a7a62 JK |
2625 | |
2626 | if (case_pass == case_sensitive_on) | |
2627 | return 0; | |
2628 | ||
2629 | /* Otherwise the strings were equal in case insensitive way, make | |
2630 | a more fine grained comparison in a case sensitive way. */ | |
2631 | ||
2632 | case_pass = case_sensitive_on; | |
2633 | string1 = saved_string1; | |
2634 | string2 = saved_string2; | |
0fe19209 | 2635 | } |
0fe19209 DC |
2636 | } |
2637 | ||
2de7ced7 DJ |
2638 | /* A simple comparison function with opposite semantics to strcmp. */ |
2639 | ||
2640 | int | |
2641 | streq (const char *lhs, const char *rhs) | |
2642 | { | |
2643 | return !strcmp (lhs, rhs); | |
2644 | } | |
c906108c | 2645 | \f |
c5aa993b | 2646 | |
c906108c | 2647 | /* |
c5aa993b JM |
2648 | ** subset_compare() |
2649 | ** Answer whether string_to_compare is a full or partial match to | |
2650 | ** template_string. The partial match must be in sequence starting | |
2651 | ** at index 0. | |
2652 | */ | |
c906108c | 2653 | int |
a121b7c1 | 2654 | subset_compare (const char *string_to_compare, const char *template_string) |
7a292a7a SS |
2655 | { |
2656 | int match; | |
e0627e85 | 2657 | |
8731e58e AC |
2658 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
2659 | && strlen (string_to_compare) <= strlen (template_string)) | |
2660 | match = | |
61012eef | 2661 | (startswith (template_string, string_to_compare)); |
7a292a7a SS |
2662 | else |
2663 | match = 0; | |
2664 | return match; | |
2665 | } | |
c906108c | 2666 | |
75feb17d DJ |
2667 | static void |
2668 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
2669 | struct cmd_list_element *c, const char *value) | |
2670 | { | |
3e43a32a MS |
2671 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), |
2672 | value); | |
75feb17d | 2673 | } |
c906108c | 2674 | \f |
c5aa993b | 2675 | |
c906108c | 2676 | void |
fba45db2 | 2677 | initialize_utils (void) |
c906108c | 2678 | { |
35096d9d | 2679 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
77dec115 EZ |
2680 | Set number of characters where GDB should wrap lines of its output."), _("\ |
2681 | Show number of characters where GDB should wrap lines of its output."), _("\ | |
2682 | This affects where GDB wraps its output to fit the screen width.\n\ | |
f81d1120 | 2683 | Setting this to \"unlimited\" or zero prevents GDB from wrapping its output."), |
35096d9d | 2684 | set_width_command, |
920d2a44 | 2685 | show_chars_per_line, |
35096d9d AC |
2686 | &setlist, &showlist); |
2687 | ||
2688 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
77dec115 EZ |
2689 | Set number of lines in a page for GDB output pagination."), _("\ |
2690 | Show number of lines in a page for GDB output pagination."), _("\ | |
2691 | This affects the number of lines after which GDB will pause\n\ | |
2692 | its output and ask you whether to continue.\n\ | |
f81d1120 | 2693 | Setting this to \"unlimited\" or zero causes GDB never pause during output."), |
35096d9d | 2694 | set_height_command, |
920d2a44 | 2695 | show_lines_per_page, |
35096d9d | 2696 | &setlist, &showlist); |
c5aa993b | 2697 | |
5bf193a2 AC |
2698 | add_setshow_boolean_cmd ("pagination", class_support, |
2699 | &pagination_enabled, _("\ | |
77dec115 EZ |
2700 | Set state of GDB output pagination."), _("\ |
2701 | Show state of GDB output pagination."), _("\ | |
2702 | When pagination is ON, GDB pauses at end of each screenful of\n\ | |
2703 | its output and asks you whether to continue.\n\ | |
f81d1120 | 2704 | Turning pagination off is an alternative to \"set height unlimited\"."), |
5bf193a2 | 2705 | NULL, |
920d2a44 | 2706 | show_pagination_enabled, |
5bf193a2 | 2707 | &setlist, &showlist); |
4261bedc | 2708 | |
5bf193a2 AC |
2709 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, |
2710 | &sevenbit_strings, _("\ | |
2711 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
2712 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
2713 | NULL, | |
920d2a44 | 2714 | show_sevenbit_strings, |
5bf193a2 AC |
2715 | &setprintlist, &showprintlist); |
2716 | ||
75feb17d DJ |
2717 | add_setshow_boolean_cmd ("timestamp", class_maintenance, |
2718 | &debug_timestamp, _("\ | |
2719 | Set timestamping of debugging messages."), _("\ | |
2720 | Show timestamping of debugging messages."), _("\ | |
2721 | When set, debugging messages will be marked with seconds and microseconds."), | |
2722 | NULL, | |
2723 | show_debug_timestamp, | |
2724 | &setdebuglist, &showdebuglist); | |
c906108c SS |
2725 | } |
2726 | ||
a738ea1d YQ |
2727 | /* See utils.h. */ |
2728 | ||
2729 | CORE_ADDR | |
2730 | address_significant (gdbarch *gdbarch, CORE_ADDR addr) | |
2731 | { | |
2732 | /* Truncate address to the significant bits of a target address, | |
2733 | avoiding shifts larger or equal than the width of a CORE_ADDR. | |
2734 | The local variable ADDR_BIT stops the compiler reporting a shift | |
2735 | overflow when it won't occur. */ | |
2736 | int addr_bit = gdbarch_significant_addr_bit (gdbarch); | |
2737 | ||
2738 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2739 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2740 | ||
2741 | return addr; | |
2742 | } | |
2743 | ||
66bf4b3a | 2744 | const char * |
5af949e3 | 2745 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
2746 | { |
2747 | /* Truncate address to the size of a target address, avoiding shifts | |
2748 | larger or equal than the width of a CORE_ADDR. The local | |
2749 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
581e13c1 | 2750 | when it won't occur. */ |
66bf4b3a AC |
2751 | /* NOTE: This assumes that the significant address information is |
2752 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2753 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2754 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2755 | ||
5af949e3 | 2756 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
2757 | |
2758 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2759 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2760 | return hex_string (addr); | |
2761 | } | |
2762 | ||
f1310107 TJB |
2763 | /* This function is described in "defs.h". */ |
2764 | ||
2765 | const char * | |
2766 | print_core_address (struct gdbarch *gdbarch, CORE_ADDR address) | |
2767 | { | |
2768 | int addr_bit = gdbarch_addr_bit (gdbarch); | |
2769 | ||
2770 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2771 | address &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2772 | ||
2773 | /* FIXME: cagney/2002-05-03: Need local_address_string() function | |
2774 | that returns the language localized string formatted to a width | |
2775 | based on gdbarch_addr_bit. */ | |
2776 | if (addr_bit <= 32) | |
2777 | return hex_string_custom (address, 8); | |
2778 | else | |
2779 | return hex_string_custom (address, 16); | |
2780 | } | |
2781 | ||
8e3b41a9 JK |
2782 | /* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */ |
2783 | ||
2784 | hashval_t | |
2785 | core_addr_hash (const void *ap) | |
2786 | { | |
19ba03f4 | 2787 | const CORE_ADDR *addrp = (const CORE_ADDR *) ap; |
8e3b41a9 JK |
2788 | |
2789 | return *addrp; | |
2790 | } | |
2791 | ||
2792 | /* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */ | |
2793 | ||
2794 | int | |
2795 | core_addr_eq (const void *ap, const void *bp) | |
2796 | { | |
19ba03f4 SM |
2797 | const CORE_ADDR *addr_ap = (const CORE_ADDR *) ap; |
2798 | const CORE_ADDR *addr_bp = (const CORE_ADDR *) bp; | |
8e3b41a9 JK |
2799 | |
2800 | return *addr_ap == *addr_bp; | |
2801 | } | |
2802 | ||
03dd37c3 AC |
2803 | /* Convert a string back into a CORE_ADDR. */ |
2804 | CORE_ADDR | |
2805 | string_to_core_addr (const char *my_string) | |
2806 | { | |
2807 | CORE_ADDR addr = 0; | |
9544c605 | 2808 | |
03dd37c3 AC |
2809 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
2810 | { | |
ced572fe | 2811 | /* Assume that it is in hex. */ |
03dd37c3 | 2812 | int i; |
5d502164 | 2813 | |
03dd37c3 AC |
2814 | for (i = 2; my_string[i] != '\0'; i++) |
2815 | { | |
2816 | if (isdigit (my_string[i])) | |
2817 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 2818 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
2819 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
2820 | else | |
63f06803 | 2821 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
2822 | } |
2823 | } | |
2824 | else | |
2825 | { | |
2826 | /* Assume that it is in decimal. */ | |
2827 | int i; | |
5d502164 | 2828 | |
03dd37c3 AC |
2829 | for (i = 0; my_string[i] != '\0'; i++) |
2830 | { | |
2831 | if (isdigit (my_string[i])) | |
2832 | addr = (my_string[i] - '0') + (addr * 10); | |
2833 | else | |
63f06803 | 2834 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
2835 | } |
2836 | } | |
9544c605 | 2837 | |
03dd37c3 AC |
2838 | return addr; |
2839 | } | |
58d370e0 | 2840 | |
14278e1f | 2841 | gdb::unique_xmalloc_ptr<char> |
58d370e0 TT |
2842 | gdb_realpath (const char *filename) |
2843 | { | |
0fa9473f JB |
2844 | /* On most hosts, we rely on canonicalize_file_name to compute |
2845 | the FILENAME's realpath. | |
2846 | ||
2847 | But the situation is slightly more complex on Windows, due to some | |
2848 | versions of GCC which were reported to generate paths where | |
2849 | backlashes (the directory separator) were doubled. For instance: | |
2850 | c:\\some\\double\\slashes\\dir | |
2851 | ... instead of ... | |
2852 | c:\some\double\slashes\dir | |
2853 | Those double-slashes were getting in the way when comparing paths, | |
2854 | for instance when trying to insert a breakpoint as follow: | |
2855 | (gdb) b c:/some/double/slashes/dir/foo.c:4 | |
2856 | No source file named c:/some/double/slashes/dir/foo.c:4. | |
2857 | (gdb) b c:\some\double\slashes\dir\foo.c:4 | |
2858 | No source file named c:\some\double\slashes\dir\foo.c:4. | |
2859 | To prevent this from happening, we need this function to always | |
2860 | strip those extra backslashes. While canonicalize_file_name does | |
2861 | perform this simplification, it only works when the path is valid. | |
2862 | Since the simplification would be useful even if the path is not | |
2863 | valid (one can always set a breakpoint on a file, even if the file | |
2864 | does not exist locally), we rely instead on GetFullPathName to | |
2865 | perform the canonicalization. */ | |
2866 | ||
9c5e4386 JB |
2867 | #if defined (_WIN32) |
2868 | { | |
2869 | char buf[MAX_PATH]; | |
2870 | DWORD len = GetFullPathName (filename, MAX_PATH, buf, NULL); | |
2871 | ||
0fa9473f JB |
2872 | /* The file system is case-insensitive but case-preserving. |
2873 | So it is important we do not lowercase the path. Otherwise, | |
2874 | we might not be able to display the original casing in a given | |
2875 | path. */ | |
9c5e4386 | 2876 | if (len > 0 && len < MAX_PATH) |
14278e1f | 2877 | return gdb::unique_xmalloc_ptr<char> (xstrdup (buf)); |
9c5e4386 | 2878 | } |
abbffc89 YQ |
2879 | #else |
2880 | { | |
2881 | char *rp = canonicalize_file_name (filename); | |
2882 | ||
2883 | if (rp != NULL) | |
14278e1f | 2884 | return gdb::unique_xmalloc_ptr<char> (rp); |
abbffc89 | 2885 | } |
9c5e4386 JB |
2886 | #endif |
2887 | ||
70d35819 | 2888 | /* This system is a lost cause, just dup the buffer. */ |
14278e1f | 2889 | return gdb::unique_xmalloc_ptr<char> (xstrdup (filename)); |
58d370e0 | 2890 | } |
303c8ebd | 2891 | |
14278e1f TT |
2892 | #if GDB_SELF_TEST |
2893 | ||
2894 | static void | |
2895 | gdb_realpath_check_trailer (const char *input, const char *trailer) | |
2896 | { | |
2897 | gdb::unique_xmalloc_ptr<char> result = gdb_realpath (input); | |
2898 | ||
2899 | size_t len = strlen (result.get ()); | |
2900 | size_t trail_len = strlen (trailer); | |
2901 | ||
2902 | SELF_CHECK (len >= trail_len | |
2903 | && strcmp (result.get () + len - trail_len, trailer) == 0); | |
2904 | } | |
2905 | ||
2906 | static void | |
2907 | gdb_realpath_tests () | |
2908 | { | |
2909 | /* A file which contains a directory prefix. */ | |
2910 | gdb_realpath_check_trailer ("./xfullpath.exp", "/xfullpath.exp"); | |
2911 | /* A file which contains a directory prefix. */ | |
2912 | gdb_realpath_check_trailer ("../../defs.h", "/defs.h"); | |
2913 | /* A one-character filename. */ | |
2914 | gdb_realpath_check_trailer ("./a", "/a"); | |
2915 | /* A file in the root directory. */ | |
2916 | gdb_realpath_check_trailer ("/root_file_which_should_exist", | |
2917 | "/root_file_which_should_exist"); | |
2918 | /* A file which does not have a directory prefix. */ | |
2919 | gdb_realpath_check_trailer ("xfullpath.exp", "xfullpath.exp"); | |
2920 | /* A one-char filename without any directory prefix. */ | |
2921 | gdb_realpath_check_trailer ("a", "a"); | |
2922 | /* An empty filename. */ | |
2923 | gdb_realpath_check_trailer ("", ""); | |
2924 | } | |
2925 | ||
2926 | #endif /* GDB_SELF_TEST */ | |
2927 | ||
4856b6bc JK |
2928 | /* Return a copy of FILENAME, with its directory prefix canonicalized |
2929 | by gdb_realpath. */ | |
2930 | ||
4971c9a7 | 2931 | gdb::unique_xmalloc_ptr<char> |
4856b6bc JK |
2932 | gdb_realpath_keepfile (const char *filename) |
2933 | { | |
2934 | const char *base_name = lbasename (filename); | |
2935 | char *dir_name; | |
4856b6bc JK |
2936 | char *result; |
2937 | ||
2938 | /* Extract the basename of filename, and return immediately | |
2939 | a copy of filename if it does not contain any directory prefix. */ | |
2940 | if (base_name == filename) | |
4971c9a7 | 2941 | return gdb::unique_xmalloc_ptr<char> (xstrdup (filename)); |
4856b6bc | 2942 | |
224c3ddb | 2943 | dir_name = (char *) alloca ((size_t) (base_name - filename + 2)); |
4856b6bc JK |
2944 | /* Allocate enough space to store the dir_name + plus one extra |
2945 | character sometimes needed under Windows (see below), and | |
2946 | then the closing \000 character. */ | |
2947 | strncpy (dir_name, filename, base_name - filename); | |
2948 | dir_name[base_name - filename] = '\000'; | |
2949 | ||
2950 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
2951 | /* We need to be careful when filename is of the form 'd:foo', which | |
2952 | is equivalent of d:./foo, which is totally different from d:/foo. */ | |
2953 | if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':') | |
2954 | { | |
2955 | dir_name[2] = '.'; | |
2956 | dir_name[3] = '\000'; | |
2957 | } | |
2958 | #endif | |
2959 | ||
2960 | /* Canonicalize the directory prefix, and build the resulting | |
2961 | filename. If the dirname realpath already contains an ending | |
2962 | directory separator, avoid doubling it. */ | |
14278e1f TT |
2963 | gdb::unique_xmalloc_ptr<char> path_storage = gdb_realpath (dir_name); |
2964 | const char *real_path = path_storage.get (); | |
4856b6bc JK |
2965 | if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1])) |
2966 | result = concat (real_path, base_name, (char *) NULL); | |
2967 | else | |
2968 | result = concat (real_path, SLASH_STRING, base_name, (char *) NULL); | |
2969 | ||
4971c9a7 | 2970 | return gdb::unique_xmalloc_ptr<char> (result); |
4856b6bc JK |
2971 | } |
2972 | ||
04affae3 JK |
2973 | /* Return PATH in absolute form, performing tilde-expansion if necessary. |
2974 | PATH cannot be NULL or the empty string. | |
e3e41d58 | 2975 | This does not resolve symlinks however, use gdb_realpath for that. */ |
04affae3 | 2976 | |
e3e41d58 | 2977 | gdb::unique_xmalloc_ptr<char> |
04affae3 JK |
2978 | gdb_abspath (const char *path) |
2979 | { | |
2980 | gdb_assert (path != NULL && path[0] != '\0'); | |
2981 | ||
2982 | if (path[0] == '~') | |
e3e41d58 | 2983 | return gdb::unique_xmalloc_ptr<char> (tilde_expand (path)); |
04affae3 JK |
2984 | |
2985 | if (IS_ABSOLUTE_PATH (path)) | |
e3e41d58 | 2986 | return gdb::unique_xmalloc_ptr<char> (xstrdup (path)); |
04affae3 JK |
2987 | |
2988 | /* Beware the // my son, the Emacs barfs, the botch that catch... */ | |
e3e41d58 TT |
2989 | return gdb::unique_xmalloc_ptr<char> |
2990 | (concat (current_directory, | |
2991 | IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1]) | |
2992 | ? "" : SLASH_STRING, | |
2993 | path, (char *) NULL)); | |
04affae3 JK |
2994 | } |
2995 | ||
5b03f266 AC |
2996 | ULONGEST |
2997 | align_up (ULONGEST v, int n) | |
2998 | { | |
2999 | /* Check that N is really a power of two. */ | |
3000 | gdb_assert (n && (n & (n-1)) == 0); | |
3001 | return (v + n - 1) & -n; | |
3002 | } | |
3003 | ||
3004 | ULONGEST | |
3005 | align_down (ULONGEST v, int n) | |
3006 | { | |
3007 | /* Check that N is really a power of two. */ | |
3008 | gdb_assert (n && (n & (n-1)) == 0); | |
3009 | return (v & -n); | |
3010 | } | |
ae5a43e0 DJ |
3011 | |
3012 | /* Allocation function for the libiberty hash table which uses an | |
3013 | obstack. The obstack is passed as DATA. */ | |
3014 | ||
3015 | void * | |
3016 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
3017 | { | |
241fd515 | 3018 | size_t total = size * count; |
ae5a43e0 | 3019 | void *ptr = obstack_alloc ((struct obstack *) data, total); |
e0627e85 | 3020 | |
ae5a43e0 DJ |
3021 | memset (ptr, 0, total); |
3022 | return ptr; | |
3023 | } | |
3024 | ||
3025 | /* Trivial deallocation function for the libiberty splay tree and hash | |
3026 | table - don't deallocate anything. Rely on later deletion of the | |
3027 | obstack. DATA will be the obstack, although it is not needed | |
3028 | here. */ | |
3029 | ||
3030 | void | |
3031 | dummy_obstack_deallocate (void *object, void *data) | |
3032 | { | |
3033 | return; | |
3034 | } | |
253c8abb | 3035 | |
e1024ff1 DJ |
3036 | /* Simple, portable version of dirname that does not modify its |
3037 | argument. */ | |
3038 | ||
d721ba37 | 3039 | std::string |
e1024ff1 DJ |
3040 | ldirname (const char *filename) |
3041 | { | |
d721ba37 | 3042 | std::string dirname; |
e1024ff1 | 3043 | const char *base = lbasename (filename); |
e1024ff1 DJ |
3044 | |
3045 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
3046 | --base; | |
3047 | ||
3048 | if (base == filename) | |
d721ba37 | 3049 | return dirname; |
e1024ff1 | 3050 | |
d721ba37 | 3051 | dirname = std::string (filename, base - filename); |
e1024ff1 DJ |
3052 | |
3053 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
3054 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
3055 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
3056 | && !IS_DIR_SEPARATOR (filename[0])) | |
3057 | dirname[base++ - filename] = '.'; | |
3058 | ||
e1024ff1 DJ |
3059 | return dirname; |
3060 | } | |
d1a41061 | 3061 | |
773a1edc TT |
3062 | /* See utils.h. */ |
3063 | ||
3064 | void | |
3065 | gdb_argv::reset (const char *s) | |
3066 | { | |
3067 | char **argv = buildargv (s); | |
3068 | ||
3069 | if (s != NULL && argv == NULL) | |
3070 | malloc_failure (0); | |
3071 | ||
3072 | freeargv (m_argv); | |
3073 | m_argv = argv; | |
3074 | } | |
3075 | ||
dc146f7c VP |
3076 | int |
3077 | compare_positive_ints (const void *ap, const void *bp) | |
3078 | { | |
3079 | /* Because we know we're comparing two ints which are positive, | |
3080 | there's no danger of overflow here. */ | |
3081 | return * (int *) ap - * (int *) bp; | |
3082 | } | |
3083 | ||
f8eba3c6 TT |
3084 | /* String compare function for qsort. */ |
3085 | ||
3086 | int | |
3087 | compare_strings (const void *arg1, const void *arg2) | |
3088 | { | |
3089 | const char **s1 = (const char **) arg1; | |
3090 | const char **s2 = (const char **) arg2; | |
3091 | ||
3092 | return strcmp (*s1, *s2); | |
3093 | } | |
3094 | ||
d18b8b7a | 3095 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3e43a32a MS |
3096 | #define AMBIGUOUS_MESS2 \ |
3097 | ".\nUse \"set gnutarget format-name\" to specify the format." | |
d18b8b7a HZ |
3098 | |
3099 | const char * | |
3100 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) | |
3101 | { | |
3102 | char *ret, *retp; | |
3103 | int ret_len; | |
3104 | char **p; | |
3105 | ||
3106 | /* Check if errmsg just need simple return. */ | |
3107 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
3108 | return bfd_errmsg (error_tag); | |
3109 | ||
3110 | ret_len = strlen (bfd_errmsg (error_tag)) + strlen (AMBIGUOUS_MESS1) | |
3111 | + strlen (AMBIGUOUS_MESS2); | |
3112 | for (p = matching; *p; p++) | |
3113 | ret_len += strlen (*p) + 1; | |
224c3ddb | 3114 | ret = (char *) xmalloc (ret_len + 1); |
d18b8b7a HZ |
3115 | retp = ret; |
3116 | make_cleanup (xfree, ret); | |
3117 | ||
3118 | strcpy (retp, bfd_errmsg (error_tag)); | |
3119 | retp += strlen (retp); | |
3120 | ||
3121 | strcpy (retp, AMBIGUOUS_MESS1); | |
3122 | retp += strlen (retp); | |
3123 | ||
3124 | for (p = matching; *p; p++) | |
3125 | { | |
3126 | sprintf (retp, " %s", *p); | |
3127 | retp += strlen (retp); | |
3128 | } | |
3129 | xfree (matching); | |
3130 | ||
3131 | strcpy (retp, AMBIGUOUS_MESS2); | |
3132 | ||
3133 | return ret; | |
3134 | } | |
3135 | ||
74164c56 JK |
3136 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
3137 | ||
3138 | int | |
c0939df1 | 3139 | parse_pid_to_attach (const char *args) |
74164c56 JK |
3140 | { |
3141 | unsigned long pid; | |
3142 | char *dummy; | |
3143 | ||
3144 | if (!args) | |
3145 | error_no_arg (_("process-id to attach")); | |
3146 | ||
c0939df1 | 3147 | dummy = (char *) args; |
74164c56 JK |
3148 | pid = strtoul (args, &dummy, 0); |
3149 | /* Some targets don't set errno on errors, grrr! */ | |
3150 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
3151 | error (_("Illegal process-id: %s."), args); | |
3152 | ||
3153 | return pid; | |
3154 | } | |
3155 | ||
353d1d73 JK |
3156 | /* Helper for make_bpstat_clear_actions_cleanup. */ |
3157 | ||
3158 | static void | |
3159 | do_bpstat_clear_actions_cleanup (void *unused) | |
3160 | { | |
3161 | bpstat_clear_actions (); | |
3162 | } | |
3163 | ||
3164 | /* Call bpstat_clear_actions for the case an exception is throw. You should | |
3165 | discard_cleanups if no exception is caught. */ | |
3166 | ||
3167 | struct cleanup * | |
3168 | make_bpstat_clear_actions_cleanup (void) | |
3169 | { | |
3170 | return make_cleanup (do_bpstat_clear_actions_cleanup, NULL); | |
3171 | } | |
3172 | ||
38360086 | 3173 | |
e4ab2fad JK |
3174 | /* Helper for make_cleanup_free_char_ptr_vec. */ |
3175 | ||
3176 | static void | |
3177 | do_free_char_ptr_vec (void *arg) | |
3178 | { | |
19ba03f4 | 3179 | VEC (char_ptr) *char_ptr_vec = (VEC (char_ptr) *) arg; |
e4ab2fad JK |
3180 | |
3181 | free_char_ptr_vec (char_ptr_vec); | |
3182 | } | |
3183 | ||
3184 | /* Make cleanup handler calling xfree for each element of CHAR_PTR_VEC and | |
3185 | final VEC_free for CHAR_PTR_VEC itself. | |
3186 | ||
3187 | You must not modify CHAR_PTR_VEC after this cleanup registration as the | |
3188 | CHAR_PTR_VEC base address may change on its updates. Contrary to VEC_free | |
3189 | this function does not (cannot) clear the pointer. */ | |
3190 | ||
3191 | struct cleanup * | |
3192 | make_cleanup_free_char_ptr_vec (VEC (char_ptr) *char_ptr_vec) | |
3193 | { | |
3194 | return make_cleanup (do_free_char_ptr_vec, char_ptr_vec); | |
3195 | } | |
3196 | ||
6dea1fbd JK |
3197 | /* Substitute all occurences of string FROM by string TO in *STRINGP. *STRINGP |
3198 | must come from xrealloc-compatible allocator and it may be updated. FROM | |
1564a261 JK |
3199 | needs to be delimited by IS_DIR_SEPARATOR or DIRNAME_SEPARATOR (or be |
3200 | located at the start or end of *STRINGP. */ | |
6dea1fbd JK |
3201 | |
3202 | void | |
3203 | substitute_path_component (char **stringp, const char *from, const char *to) | |
3204 | { | |
3205 | char *string = *stringp, *s; | |
3206 | const size_t from_len = strlen (from); | |
3207 | const size_t to_len = strlen (to); | |
3208 | ||
3209 | for (s = string;;) | |
3210 | { | |
3211 | s = strstr (s, from); | |
3212 | if (s == NULL) | |
3213 | break; | |
3214 | ||
1564a261 JK |
3215 | if ((s == string || IS_DIR_SEPARATOR (s[-1]) |
3216 | || s[-1] == DIRNAME_SEPARATOR) | |
3217 | && (s[from_len] == '\0' || IS_DIR_SEPARATOR (s[from_len]) | |
3218 | || s[from_len] == DIRNAME_SEPARATOR)) | |
6dea1fbd JK |
3219 | { |
3220 | char *string_new; | |
3221 | ||
224c3ddb SM |
3222 | string_new |
3223 | = (char *) xrealloc (string, (strlen (string) + to_len + 1)); | |
6dea1fbd JK |
3224 | |
3225 | /* Relocate the current S pointer. */ | |
3226 | s = s - string + string_new; | |
3227 | string = string_new; | |
3228 | ||
3229 | /* Replace from by to. */ | |
3230 | memmove (&s[to_len], &s[from_len], strlen (&s[from_len]) + 1); | |
3231 | memcpy (s, to, to_len); | |
3232 | ||
3233 | s += to_len; | |
3234 | } | |
3235 | else | |
3236 | s++; | |
3237 | } | |
3238 | ||
3239 | *stringp = string; | |
3240 | } | |
3241 | ||
0b6cb71e DE |
3242 | #ifdef HAVE_WAITPID |
3243 | ||
3244 | #ifdef SIGALRM | |
3245 | ||
3246 | /* SIGALRM handler for waitpid_with_timeout. */ | |
3247 | ||
3248 | static void | |
3249 | sigalrm_handler (int signo) | |
3250 | { | |
3251 | /* Nothing to do. */ | |
3252 | } | |
3253 | ||
3254 | #endif | |
3255 | ||
3256 | /* Wrapper to wait for child PID to die with TIMEOUT. | |
3257 | TIMEOUT is the time to stop waiting in seconds. | |
3258 | If TIMEOUT is zero, pass WNOHANG to waitpid. | |
3259 | Returns PID if it was successfully waited for, otherwise -1. | |
3260 | ||
3261 | Timeouts are currently implemented with alarm and SIGALRM. | |
3262 | If the host does not support them, this waits "forever". | |
3263 | It would be odd though for a host to have waitpid and not SIGALRM. */ | |
3264 | ||
3265 | pid_t | |
3266 | wait_to_die_with_timeout (pid_t pid, int *status, int timeout) | |
3267 | { | |
3268 | pid_t waitpid_result; | |
3269 | ||
3270 | gdb_assert (pid > 0); | |
3271 | gdb_assert (timeout >= 0); | |
3272 | ||
3273 | if (timeout > 0) | |
3274 | { | |
3275 | #ifdef SIGALRM | |
3276 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3277 | struct sigaction sa, old_sa; | |
3278 | ||
3279 | sa.sa_handler = sigalrm_handler; | |
3280 | sigemptyset (&sa.sa_mask); | |
3281 | sa.sa_flags = 0; | |
3282 | sigaction (SIGALRM, &sa, &old_sa); | |
3283 | #else | |
a40805d4 | 3284 | sighandler_t ofunc; |
0b6cb71e | 3285 | |
a40805d4 | 3286 | ofunc = signal (SIGALRM, sigalrm_handler); |
0b6cb71e DE |
3287 | #endif |
3288 | ||
3289 | alarm (timeout); | |
3290 | #endif | |
3291 | ||
3292 | waitpid_result = waitpid (pid, status, 0); | |
3293 | ||
3294 | #ifdef SIGALRM | |
3295 | alarm (0); | |
3296 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3297 | sigaction (SIGALRM, &old_sa, NULL); | |
3298 | #else | |
3299 | signal (SIGALRM, ofunc); | |
3300 | #endif | |
3301 | #endif | |
3302 | } | |
3303 | else | |
3304 | waitpid_result = waitpid (pid, status, WNOHANG); | |
3305 | ||
3306 | if (waitpid_result == pid) | |
3307 | return pid; | |
3308 | else | |
3309 | return -1; | |
3310 | } | |
3311 | ||
3312 | #endif /* HAVE_WAITPID */ | |
3313 | ||
202cbf1c JK |
3314 | /* Provide fnmatch compatible function for FNM_FILE_NAME matching of host files. |
3315 | Both FNM_FILE_NAME and FNM_NOESCAPE must be set in FLAGS. | |
3316 | ||
3317 | It handles correctly HAVE_DOS_BASED_FILE_SYSTEM and | |
3318 | HAVE_CASE_INSENSITIVE_FILE_SYSTEM. */ | |
3319 | ||
3320 | int | |
3321 | gdb_filename_fnmatch (const char *pattern, const char *string, int flags) | |
3322 | { | |
3323 | gdb_assert ((flags & FNM_FILE_NAME) != 0); | |
3324 | ||
3325 | /* It is unclear how '\' escaping vs. directory separator should coexist. */ | |
3326 | gdb_assert ((flags & FNM_NOESCAPE) != 0); | |
3327 | ||
3328 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3329 | { | |
3330 | char *pattern_slash, *string_slash; | |
3331 | ||
3332 | /* Replace '\' by '/' in both strings. */ | |
3333 | ||
0ae1c716 | 3334 | pattern_slash = (char *) alloca (strlen (pattern) + 1); |
202cbf1c JK |
3335 | strcpy (pattern_slash, pattern); |
3336 | pattern = pattern_slash; | |
3337 | for (; *pattern_slash != 0; pattern_slash++) | |
3338 | if (IS_DIR_SEPARATOR (*pattern_slash)) | |
3339 | *pattern_slash = '/'; | |
3340 | ||
0ae1c716 | 3341 | string_slash = (char *) alloca (strlen (string) + 1); |
202cbf1c JK |
3342 | strcpy (string_slash, string); |
3343 | string = string_slash; | |
3344 | for (; *string_slash != 0; string_slash++) | |
3345 | if (IS_DIR_SEPARATOR (*string_slash)) | |
3346 | *string_slash = '/'; | |
3347 | } | |
3348 | #endif /* HAVE_DOS_BASED_FILE_SYSTEM */ | |
3349 | ||
3350 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
3351 | flags |= FNM_CASEFOLD; | |
3352 | #endif /* HAVE_CASE_INSENSITIVE_FILE_SYSTEM */ | |
3353 | ||
3354 | return fnmatch (pattern, string, flags); | |
3355 | } | |
3356 | ||
cce0e923 DE |
3357 | /* Return the number of path elements in PATH. |
3358 | / = 1 | |
3359 | /foo = 2 | |
3360 | /foo/ = 2 | |
3361 | foo/bar = 2 | |
3362 | foo/ = 1 */ | |
3363 | ||
3364 | int | |
3365 | count_path_elements (const char *path) | |
3366 | { | |
3367 | int count = 0; | |
3368 | const char *p = path; | |
3369 | ||
3370 | if (HAS_DRIVE_SPEC (p)) | |
3371 | { | |
3372 | p = STRIP_DRIVE_SPEC (p); | |
3373 | ++count; | |
3374 | } | |
3375 | ||
3376 | while (*p != '\0') | |
3377 | { | |
3378 | if (IS_DIR_SEPARATOR (*p)) | |
3379 | ++count; | |
3380 | ++p; | |
3381 | } | |
3382 | ||
3383 | /* Backup one if last character is /, unless it's the only one. */ | |
3384 | if (p > path + 1 && IS_DIR_SEPARATOR (p[-1])) | |
3385 | --count; | |
3386 | ||
3387 | /* Add one for the file name, if present. */ | |
3388 | if (p > path && !IS_DIR_SEPARATOR (p[-1])) | |
3389 | ++count; | |
3390 | ||
3391 | return count; | |
3392 | } | |
3393 | ||
3394 | /* Remove N leading path elements from PATH. | |
3395 | N must be non-negative. | |
3396 | If PATH has more than N path elements then return NULL. | |
3397 | If PATH has exactly N path elements then return "". | |
3398 | See count_path_elements for a description of how we do the counting. */ | |
3399 | ||
3400 | const char * | |
3401 | strip_leading_path_elements (const char *path, int n) | |
3402 | { | |
3403 | int i = 0; | |
3404 | const char *p = path; | |
3405 | ||
3406 | gdb_assert (n >= 0); | |
3407 | ||
3408 | if (n == 0) | |
3409 | return p; | |
3410 | ||
3411 | if (HAS_DRIVE_SPEC (p)) | |
3412 | { | |
3413 | p = STRIP_DRIVE_SPEC (p); | |
3414 | ++i; | |
3415 | } | |
3416 | ||
3417 | while (i < n) | |
3418 | { | |
3419 | while (*p != '\0' && !IS_DIR_SEPARATOR (*p)) | |
3420 | ++p; | |
3421 | if (*p == '\0') | |
3422 | { | |
3423 | if (i + 1 == n) | |
3424 | return ""; | |
3425 | return NULL; | |
3426 | } | |
3427 | ++p; | |
3428 | ++i; | |
3429 | } | |
3430 | ||
3431 | return p; | |
3432 | } | |
3433 | ||
3c16cced PA |
3434 | void |
3435 | _initialize_utils (void) | |
3436 | { | |
3437 | add_internal_problem_command (&internal_error_problem); | |
3438 | add_internal_problem_command (&internal_warning_problem); | |
57fcfb1b | 3439 | add_internal_problem_command (&demangler_warning_problem); |
14278e1f TT |
3440 | |
3441 | #if GDB_SELF_TEST | |
1526853e | 3442 | selftests::register_test ("gdb_realpath", gdb_realpath_tests); |
14278e1f | 3443 | #endif |
3c16cced | 3444 | } |