Commit | Line | Data |
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c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
1bac305b | 2 | |
3666a048 | 3 | Copyright (C) 1986-2021 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> |
268a13a5 | 22 | #include "gdbsupport/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 | |
390a8aca | 65 | #include "interps.h" |
db1ff28b | 66 | #include "gdb_regex.h" |
268a13a5 TT |
67 | #include "gdbsupport/job-control.h" |
68 | #include "gdbsupport/selftest.h" | |
69 | #include "gdbsupport/gdb_optional.h" | |
0662b6a7 PA |
70 | #include "cp-support.h" |
71 | #include <algorithm> | |
268a13a5 | 72 | #include "gdbsupport/pathstuff.h" |
cbe56571 | 73 | #include "cli/cli-style.h" |
268a13a5 | 74 | #include "gdbsupport/scope-exit.h" |
0d12e84c | 75 | #include "gdbarch.h" |
2a3c1174 | 76 | #include "cli-out.h" |
51e2cfa2 | 77 | #include "gdbsupport/gdb-safe-ctype.h" |
8626589c | 78 | |
9a4105ab | 79 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
80 | |
81 | /* Prototypes for local functions */ | |
82 | ||
d9fcf2fb | 83 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
2a3c1174 PA |
84 | va_list, bool, bool) |
85 | ATTRIBUTE_PRINTF (2, 0); | |
c906108c | 86 | |
d9fcf2fb | 87 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 88 | |
a14ed312 | 89 | static void prompt_for_continue (void); |
c906108c | 90 | |
eb0d3137 | 91 | static void set_screen_size (void); |
a14ed312 | 92 | static void set_width (void); |
c906108c | 93 | |
260c0b2a DE |
94 | /* Time spent in prompt_for_continue in the currently executing command |
95 | waiting for user to respond. | |
96 | Initialized in make_command_stats_cleanup. | |
97 | Modified in prompt_for_continue and defaulted_query. | |
98 | Used in report_command_stats. */ | |
99 | ||
dcb07cfa | 100 | static std::chrono::steady_clock::duration prompt_for_continue_wait_time; |
260c0b2a | 101 | |
75feb17d DJ |
102 | /* A flag indicating whether to timestamp debugging messages. */ |
103 | ||
491144b5 | 104 | static bool debug_timestamp = false; |
75feb17d | 105 | |
491144b5 CB |
106 | /* True means that strings with character values >0x7F should be printed |
107 | as octal escapes. False means just print the value (e.g. it's an | |
c906108c SS |
108 | international character, and the terminal or window can cope.) */ |
109 | ||
491144b5 | 110 | bool sevenbit_strings = false; |
920d2a44 AC |
111 | static void |
112 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
113 | struct cmd_list_element *c, const char *value) | |
114 | { | |
3e43a32a MS |
115 | fprintf_filtered (file, _("Printing of 8-bit characters " |
116 | "in strings as \\nnn is %s.\n"), | |
920d2a44 AC |
117 | value); |
118 | } | |
c906108c | 119 | |
c906108c SS |
120 | /* String to be printed before warning messages, if any. */ |
121 | ||
69bbf465 | 122 | const char *warning_pre_print = "\nwarning: "; |
c906108c | 123 | |
491144b5 | 124 | bool pagination_enabled = true; |
920d2a44 AC |
125 | static void |
126 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
127 | struct cmd_list_element *c, const char *value) | |
128 | { | |
129 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
130 | } | |
131 | ||
c906108c | 132 | \f |
c5aa993b | 133 | |
8731e58e | 134 | |
f5a96129 AC |
135 | /* Print a warning message. The first argument STRING is the warning |
136 | message, used as an fprintf format string, the second is the | |
137 | va_list of arguments for that string. A warning is unfiltered (not | |
138 | paginated) so that the user does not need to page through each | |
139 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
140 | |
141 | void | |
f5a96129 | 142 | vwarning (const char *string, va_list args) |
c906108c | 143 | { |
9a4105ab AC |
144 | if (deprecated_warning_hook) |
145 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
146 | else |
147 | { | |
223ffa71 | 148 | gdb::optional<target_terminal::scoped_restore_terminal_state> term_state; |
0d2f5c07 | 149 | if (target_supports_terminal_ours ()) |
c5ac1540 | 150 | { |
223ffa71 TT |
151 | term_state.emplace (); |
152 | target_terminal::ours_for_output (); | |
c5ac1540 | 153 | } |
0d2f5c07 GB |
154 | if (filtered_printing_initialized ()) |
155 | wrap_here (""); /* Force out any buffered output. */ | |
f5a96129 AC |
156 | gdb_flush (gdb_stdout); |
157 | if (warning_pre_print) | |
306d9ac5 | 158 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
159 | vfprintf_unfiltered (gdb_stderr, string, args); |
160 | fprintf_unfiltered (gdb_stderr, "\n"); | |
f5a96129 | 161 | } |
c906108c SS |
162 | } |
163 | ||
c906108c SS |
164 | /* Print an error message and return to command level. |
165 | The first argument STRING is the error message, used as a fprintf string, | |
166 | and the remaining args are passed as arguments to it. */ | |
167 | ||
c25c4a8b | 168 | void |
4ce44c66 JM |
169 | verror (const char *string, va_list args) |
170 | { | |
6b1b7650 | 171 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
172 | } |
173 | ||
c25c4a8b | 174 | void |
d7e74731 | 175 | error_stream (const string_file &stream) |
2acceee2 | 176 | { |
d7e74731 | 177 | error (("%s"), stream.c_str ()); |
2acceee2 | 178 | } |
c906108c | 179 | |
2437fd32 GB |
180 | /* Emit a message and abort. */ |
181 | ||
182 | static void ATTRIBUTE_NORETURN | |
183 | abort_with_message (const char *msg) | |
184 | { | |
72542b8e | 185 | if (current_ui == NULL) |
2437fd32 GB |
186 | fputs (msg, stderr); |
187 | else | |
188 | fputs_unfiltered (msg, gdb_stderr); | |
189 | ||
036003a6 | 190 | abort (); /* ARI: abort */ |
2437fd32 GB |
191 | } |
192 | ||
7991dee7 JK |
193 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
194 | ||
eae7090b | 195 | void |
7991dee7 JK |
196 | dump_core (void) |
197 | { | |
198 | #ifdef HAVE_SETRLIMIT | |
206c1947 | 199 | struct rlimit rlim = { (rlim_t) RLIM_INFINITY, (rlim_t) RLIM_INFINITY }; |
7991dee7 JK |
200 | |
201 | setrlimit (RLIMIT_CORE, &rlim); | |
202 | #endif /* HAVE_SETRLIMIT */ | |
203 | ||
036003a6 | 204 | abort (); /* ARI: abort */ |
7991dee7 JK |
205 | } |
206 | ||
3e43a32a | 207 | /* Check whether GDB will be able to dump core using the dump_core |
eae7090b GB |
208 | function. Returns zero if GDB cannot or should not dump core. |
209 | If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected. | |
210 | If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected. */ | |
7991dee7 | 211 | |
eae7090b GB |
212 | int |
213 | can_dump_core (enum resource_limit_kind limit_kind) | |
7991dee7 JK |
214 | { |
215 | #ifdef HAVE_GETRLIMIT | |
216 | struct rlimit rlim; | |
217 | ||
218 | /* Be quiet and assume we can dump if an error is returned. */ | |
219 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
220 | return 1; | |
221 | ||
eae7090b | 222 | switch (limit_kind) |
7991dee7 | 223 | { |
eae7090b GB |
224 | case LIMIT_CUR: |
225 | if (rlim.rlim_cur == 0) | |
226 | return 0; | |
565e0eda | 227 | /* Fall through. */ |
eae7090b GB |
228 | |
229 | case LIMIT_MAX: | |
230 | if (rlim.rlim_max == 0) | |
231 | return 0; | |
7991dee7 JK |
232 | } |
233 | #endif /* HAVE_GETRLIMIT */ | |
234 | ||
235 | return 1; | |
236 | } | |
237 | ||
eae7090b GB |
238 | /* Print a warning that we cannot dump core. */ |
239 | ||
240 | void | |
241 | warn_cant_dump_core (const char *reason) | |
242 | { | |
243 | fprintf_unfiltered (gdb_stderr, | |
244 | _("%s\nUnable to dump core, use `ulimit -c" | |
245 | " unlimited' before executing GDB next time.\n"), | |
246 | reason); | |
247 | } | |
248 | ||
249 | /* Check whether GDB will be able to dump core using the dump_core | |
250 | function, and print a warning if we cannot. */ | |
251 | ||
252 | static int | |
253 | can_dump_core_warn (enum resource_limit_kind limit_kind, | |
254 | const char *reason) | |
255 | { | |
256 | int core_dump_allowed = can_dump_core (limit_kind); | |
257 | ||
258 | if (!core_dump_allowed) | |
259 | warn_cant_dump_core (reason); | |
260 | ||
261 | return core_dump_allowed; | |
262 | } | |
263 | ||
3c16cced PA |
264 | /* Allow the user to configure the debugger behavior with respect to |
265 | what to do when an internal problem is detected. */ | |
266 | ||
267 | const char internal_problem_ask[] = "ask"; | |
268 | const char internal_problem_yes[] = "yes"; | |
269 | const char internal_problem_no[] = "no"; | |
40478521 | 270 | static const char *const internal_problem_modes[] = |
3c16cced PA |
271 | { |
272 | internal_problem_ask, | |
273 | internal_problem_yes, | |
274 | internal_problem_no, | |
275 | NULL | |
276 | }; | |
3c16cced | 277 | |
581e13c1 | 278 | /* Print a message reporting an internal error/warning. Ask the user |
dec43320 AC |
279 | if they want to continue, dump core, or just exit. Return |
280 | something to indicate a quit. */ | |
c906108c | 281 | |
dec43320 | 282 | struct internal_problem |
c906108c | 283 | { |
dec43320 | 284 | const char *name; |
57fcfb1b | 285 | int user_settable_should_quit; |
3c16cced | 286 | const char *should_quit; |
57fcfb1b | 287 | int user_settable_should_dump_core; |
3c16cced | 288 | const char *should_dump_core; |
dec43320 AC |
289 | }; |
290 | ||
291 | /* Report a problem, internal to GDB, to the user. Once the problem | |
292 | has been reported, and assuming GDB didn't quit, the caller can | |
293 | either allow execution to resume or throw an error. */ | |
294 | ||
a0b31db1 | 295 | static void ATTRIBUTE_PRINTF (4, 0) |
dec43320 | 296 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 297 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 298 | { |
dec43320 | 299 | static int dejavu; |
375fc983 | 300 | int quit_p; |
7be570e7 | 301 | int dump_core_p; |
e05550d7 | 302 | std::string reason; |
c906108c | 303 | |
dec43320 | 304 | /* Don't allow infinite error/warning recursion. */ |
714b1282 | 305 | { |
02cf60c7 | 306 | static const char msg[] = "Recursive internal problem.\n"; |
5d502164 | 307 | |
714b1282 AC |
308 | switch (dejavu) |
309 | { | |
310 | case 0: | |
311 | dejavu = 1; | |
312 | break; | |
313 | case 1: | |
314 | dejavu = 2; | |
2437fd32 | 315 | abort_with_message (msg); |
714b1282 AC |
316 | default: |
317 | dejavu = 3; | |
dda83cd7 SM |
318 | /* Newer GLIBC versions put the warn_unused_result attribute |
319 | on write, but this is one of those rare cases where | |
320 | ignoring the return value is correct. Casting to (void) | |
321 | does not fix this problem. This is the solution suggested | |
322 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
bf1d7d9c | 323 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) |
dda83cd7 | 324 | abort (); /* ARI: abort */ |
714b1282 AC |
325 | exit (1); |
326 | } | |
327 | } | |
c906108c | 328 | |
714b1282 AC |
329 | /* Create a string containing the full error/warning message. Need |
330 | to call query with this full string, as otherwize the reason | |
331 | (error/warning) and question become separated. Format using a | |
332 | style similar to a compiler error message. Include extra detail | |
333 | so that the user knows that they are living on the edge. */ | |
334 | { | |
f8bfbf22 | 335 | std::string msg = string_vprintf (fmt, ap); |
e05550d7 TT |
336 | reason = string_printf ("%s:%d: %s: %s\n" |
337 | "A problem internal to GDB has been detected,\n" | |
338 | "further debugging may prove unreliable.", | |
339 | file, line, problem->name, msg.c_str ()); | |
714b1282 | 340 | } |
7be570e7 | 341 | |
2437fd32 | 342 | /* Fall back to abort_with_message if gdb_stderr is not set up. */ |
72542b8e | 343 | if (current_ui == NULL) |
2437fd32 | 344 | { |
e05550d7 | 345 | fputs (reason.c_str (), stderr); |
2437fd32 GB |
346 | abort_with_message ("\n"); |
347 | } | |
348 | ||
349 | /* Try to get the message out and at the start of a new line. */ | |
223ffa71 | 350 | gdb::optional<target_terminal::scoped_restore_terminal_state> term_state; |
2437fd32 | 351 | if (target_supports_terminal_ours ()) |
c5ac1540 | 352 | { |
223ffa71 TT |
353 | term_state.emplace (); |
354 | target_terminal::ours_for_output (); | |
c5ac1540 | 355 | } |
2437fd32 GB |
356 | if (filtered_printing_initialized ()) |
357 | begin_line (); | |
358 | ||
196a707b | 359 | /* Emit the message unless query will emit it below. */ |
2437fd32 GB |
360 | if (problem->should_quit != internal_problem_ask |
361 | || !confirm | |
362 | || !filtered_printing_initialized ()) | |
e05550d7 | 363 | fprintf_unfiltered (gdb_stderr, "%s\n", reason.c_str ()); |
196a707b | 364 | |
3c16cced | 365 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 366 | { |
dec43320 | 367 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
368 | this lessens the likelihood of GDB going into an infinite |
369 | loop. */ | |
2437fd32 | 370 | if (!confirm || !filtered_printing_initialized ()) |
196a707b | 371 | quit_p = 1; |
26bb68be | 372 | else |
dda83cd7 | 373 | quit_p = query (_("%s\nQuit this debugging session? "), |
e05550d7 | 374 | reason.c_str ()); |
dec43320 | 375 | } |
3c16cced PA |
376 | else if (problem->should_quit == internal_problem_yes) |
377 | quit_p = 1; | |
378 | else if (problem->should_quit == internal_problem_no) | |
379 | quit_p = 0; | |
380 | else | |
381 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 382 | |
add6c04d GB |
383 | fputs_unfiltered (_("\nThis is a bug, please report it."), gdb_stderr); |
384 | if (REPORT_BUGS_TO[0]) | |
385 | fprintf_unfiltered (gdb_stderr, _(" For instructions, see:\n%s."), | |
386 | REPORT_BUGS_TO); | |
387 | fputs_unfiltered ("\n\n", gdb_stderr); | |
388 | ||
3c16cced | 389 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 390 | { |
e05550d7 | 391 | if (!can_dump_core_warn (LIMIT_MAX, reason.c_str ())) |
7991dee7 | 392 | dump_core_p = 0; |
2437fd32 GB |
393 | else if (!filtered_printing_initialized ()) |
394 | dump_core_p = 1; | |
7991dee7 JK |
395 | else |
396 | { | |
397 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
398 | `dropping' so that it is easier to see that something went | |
399 | wrong in GDB. */ | |
e05550d7 TT |
400 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), |
401 | reason.c_str ()); | |
7991dee7 | 402 | } |
dec43320 | 403 | } |
3c16cced | 404 | else if (problem->should_dump_core == internal_problem_yes) |
e05550d7 | 405 | dump_core_p = can_dump_core_warn (LIMIT_MAX, reason.c_str ()); |
3c16cced PA |
406 | else if (problem->should_dump_core == internal_problem_no) |
407 | dump_core_p = 0; | |
408 | else | |
409 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 410 | |
375fc983 | 411 | if (quit_p) |
7be570e7 JM |
412 | { |
413 | if (dump_core_p) | |
7991dee7 | 414 | dump_core (); |
375fc983 AC |
415 | else |
416 | exit (1); | |
7be570e7 JM |
417 | } |
418 | else | |
419 | { | |
420 | if (dump_core_p) | |
375fc983 | 421 | { |
9b265ec2 | 422 | #ifdef HAVE_WORKING_FORK |
375fc983 | 423 | if (fork () == 0) |
7991dee7 | 424 | dump_core (); |
9b265ec2 | 425 | #endif |
375fc983 | 426 | } |
7be570e7 | 427 | } |
96baa820 JM |
428 | |
429 | dejavu = 0; | |
dec43320 AC |
430 | } |
431 | ||
432 | static struct internal_problem internal_error_problem = { | |
57fcfb1b | 433 | "internal-error", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
434 | }; |
435 | ||
c25c4a8b | 436 | void |
8731e58e | 437 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
438 | { |
439 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
2c51604d | 440 | throw_quit (_("Command aborted.")); |
c906108c SS |
441 | } |
442 | ||
dec43320 | 443 | static struct internal_problem internal_warning_problem = { |
57fcfb1b | 444 | "internal-warning", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
445 | }; |
446 | ||
447 | void | |
8731e58e | 448 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
449 | { |
450 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
451 | } | |
452 | ||
57fcfb1b GB |
453 | static struct internal_problem demangler_warning_problem = { |
454 | "demangler-warning", 1, internal_problem_ask, 0, internal_problem_no | |
455 | }; | |
456 | ||
457 | void | |
458 | demangler_vwarning (const char *file, int line, const char *fmt, va_list ap) | |
459 | { | |
460 | internal_vproblem (&demangler_warning_problem, file, line, fmt, ap); | |
461 | } | |
462 | ||
463 | void | |
464 | demangler_warning (const char *file, int line, const char *string, ...) | |
465 | { | |
466 | va_list ap; | |
467 | ||
468 | va_start (ap, string); | |
469 | demangler_vwarning (file, line, string, ap); | |
470 | va_end (ap); | |
471 | } | |
472 | ||
3c16cced PA |
473 | /* When GDB reports an internal problem (error or warning) it gives |
474 | the user the opportunity to quit GDB and/or create a core file of | |
475 | the current debug session. This function registers a few commands | |
476 | that make it possible to specify that GDB should always or never | |
477 | quit or create a core file, without asking. The commands look | |
478 | like: | |
479 | ||
480 | maint set PROBLEM-NAME quit ask|yes|no | |
481 | maint show PROBLEM-NAME quit | |
482 | maint set PROBLEM-NAME corefile ask|yes|no | |
483 | maint show PROBLEM-NAME corefile | |
484 | ||
485 | Where PROBLEM-NAME is currently "internal-error" or | |
486 | "internal-warning". */ | |
487 | ||
488 | static void | |
489 | add_internal_problem_command (struct internal_problem *problem) | |
490 | { | |
491 | struct cmd_list_element **set_cmd_list; | |
492 | struct cmd_list_element **show_cmd_list; | |
493 | char *set_doc; | |
494 | char *show_doc; | |
495 | ||
8d749320 SM |
496 | set_cmd_list = XNEW (struct cmd_list_element *); |
497 | show_cmd_list = XNEW (struct cmd_list_element *); | |
3c16cced PA |
498 | *set_cmd_list = NULL; |
499 | *show_cmd_list = NULL; | |
500 | ||
501 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
502 | problem->name); | |
503 | ||
504 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
505 | problem->name); | |
506 | ||
3b6acaee TT |
507 | add_basic_prefix_cmd (problem->name, class_maintenance, set_doc, |
508 | set_cmd_list, | |
3b6acaee TT |
509 | 0/*allow-unknown*/, &maintenance_set_cmdlist); |
510 | ||
511 | add_show_prefix_cmd (problem->name, class_maintenance, show_doc, | |
512 | show_cmd_list, | |
3b6acaee | 513 | 0/*allow-unknown*/, &maintenance_show_cmdlist); |
3c16cced | 514 | |
57fcfb1b GB |
515 | if (problem->user_settable_should_quit) |
516 | { | |
517 | set_doc = xstrprintf (_("Set whether GDB should quit " | |
590042fc | 518 | "when an %s is detected."), |
57fcfb1b GB |
519 | problem->name); |
520 | show_doc = xstrprintf (_("Show whether GDB will quit " | |
590042fc | 521 | "when an %s is detected."), |
57fcfb1b GB |
522 | problem->name); |
523 | add_setshow_enum_cmd ("quit", class_maintenance, | |
524 | internal_problem_modes, | |
525 | &problem->should_quit, | |
526 | set_doc, | |
527 | show_doc, | |
528 | NULL, /* help_doc */ | |
529 | NULL, /* setfunc */ | |
530 | NULL, /* showfunc */ | |
531 | set_cmd_list, | |
532 | show_cmd_list); | |
533 | ||
534 | xfree (set_doc); | |
535 | xfree (show_doc); | |
536 | } | |
1eefb858 | 537 | |
57fcfb1b GB |
538 | if (problem->user_settable_should_dump_core) |
539 | { | |
540 | set_doc = xstrprintf (_("Set whether GDB should create a core " | |
590042fc | 541 | "file of GDB when %s is detected."), |
57fcfb1b GB |
542 | problem->name); |
543 | show_doc = xstrprintf (_("Show whether GDB will create a core " | |
590042fc | 544 | "file of GDB when %s is detected."), |
57fcfb1b GB |
545 | problem->name); |
546 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
547 | internal_problem_modes, | |
548 | &problem->should_dump_core, | |
549 | set_doc, | |
550 | show_doc, | |
551 | NULL, /* help_doc */ | |
552 | NULL, /* setfunc */ | |
553 | NULL, /* showfunc */ | |
554 | set_cmd_list, | |
555 | show_cmd_list); | |
556 | ||
557 | xfree (set_doc); | |
558 | xfree (show_doc); | |
559 | } | |
3c16cced PA |
560 | } |
561 | ||
0cf4063e | 562 | /* Return a newly allocated string, containing the PREFIX followed |
18e9961f | 563 | by the system error message for errno (separated by a colon). */ |
0cf4063e | 564 | |
18e9961f | 565 | static std::string |
0cf4063e JB |
566 | perror_string (const char *prefix) |
567 | { | |
b231e86a | 568 | const char *err = safe_strerror (errno); |
18e9961f | 569 | return std::string (prefix) + ": " + err; |
0cf4063e JB |
570 | } |
571 | ||
c906108c | 572 | /* Print the system error message for errno, and also mention STRING |
598d3636 JK |
573 | as the file name for which the error was encountered. Use ERRCODE |
574 | for the thrown exception. Then return to command level. */ | |
c906108c | 575 | |
c25c4a8b | 576 | void |
598d3636 | 577 | throw_perror_with_name (enum errors errcode, const char *string) |
c906108c | 578 | { |
18e9961f | 579 | std::string combined = perror_string (string); |
c906108c SS |
580 | |
581 | /* I understand setting these is a matter of taste. Still, some people | |
582 | may clear errno but not know about bfd_error. Doing this here is not | |
581e13c1 | 583 | unreasonable. */ |
c906108c SS |
584 | bfd_set_error (bfd_error_no_error); |
585 | errno = 0; | |
586 | ||
18e9961f | 587 | throw_error (errcode, _("%s."), combined.c_str ()); |
598d3636 JK |
588 | } |
589 | ||
590 | /* See throw_perror_with_name, ERRCODE defaults here to GENERIC_ERROR. */ | |
591 | ||
592 | void | |
593 | perror_with_name (const char *string) | |
594 | { | |
595 | throw_perror_with_name (GENERIC_ERROR, string); | |
c906108c SS |
596 | } |
597 | ||
7c647d61 JB |
598 | /* Same as perror_with_name except that it prints a warning instead |
599 | of throwing an error. */ | |
600 | ||
601 | void | |
602 | perror_warning_with_name (const char *string) | |
603 | { | |
18e9961f TT |
604 | std::string combined = perror_string (string); |
605 | warning (_("%s"), combined.c_str ()); | |
7c647d61 JB |
606 | } |
607 | ||
c906108c SS |
608 | /* Print the system error message for ERRCODE, and also mention STRING |
609 | as the file name for which the error was encountered. */ | |
610 | ||
611 | void | |
6972bc8b | 612 | print_sys_errmsg (const char *string, int errcode) |
c906108c | 613 | { |
b231e86a | 614 | const char *err = safe_strerror (errcode); |
c906108c SS |
615 | /* We want anything which was printed on stdout to come out first, before |
616 | this message. */ | |
617 | gdb_flush (gdb_stdout); | |
5df96a4e | 618 | fprintf_unfiltered (gdb_stderr, "%s: %s.\n", string, err); |
c906108c SS |
619 | } |
620 | ||
621 | /* Control C eventually causes this to be called, at a convenient time. */ | |
622 | ||
623 | void | |
fba45db2 | 624 | quit (void) |
c906108c | 625 | { |
06c868a8 JK |
626 | if (sync_quit_force_run) |
627 | { | |
628 | sync_quit_force_run = 0; | |
268a799a | 629 | quit_force (NULL, 0); |
06c868a8 JK |
630 | } |
631 | ||
7be570e7 JM |
632 | #ifdef __MSDOS__ |
633 | /* No steenking SIGINT will ever be coming our way when the | |
634 | program is resumed. Don't lie. */ | |
2c51604d | 635 | throw_quit ("Quit"); |
7be570e7 | 636 | #else |
c906108c | 637 | if (job_control |
8731e58e | 638 | /* If there is no terminal switching for this target, then we can't |
dda83cd7 | 639 | possibly get screwed by the lack of job control. */ |
b0ed115f | 640 | || !target_supports_terminal_ours ()) |
2c51604d | 641 | throw_quit ("Quit"); |
c906108c | 642 | else |
2c51604d | 643 | throw_quit ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 644 | #endif |
c906108c SS |
645 | } |
646 | ||
abc56d60 PA |
647 | /* See defs.h. */ |
648 | ||
649 | void | |
650 | maybe_quit (void) | |
651 | { | |
048094ac | 652 | if (sync_quit_force_run) |
abc56d60 | 653 | quit (); |
048094ac PA |
654 | |
655 | quit_handler (); | |
abc56d60 PA |
656 | } |
657 | ||
c906108c | 658 | \f |
c906108c | 659 | /* Called when a memory allocation fails, with the number of bytes of |
581e13c1 | 660 | memory requested in SIZE. */ |
c906108c | 661 | |
c25c4a8b | 662 | void |
d26e3629 | 663 | malloc_failure (long size) |
c906108c SS |
664 | { |
665 | if (size > 0) | |
666 | { | |
8e65ff28 | 667 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 668 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 669 | size); |
c906108c SS |
670 | } |
671 | else | |
672 | { | |
e2e0b3e5 | 673 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
674 | } |
675 | } | |
676 | ||
c1cd3163 TT |
677 | /* See common/errors.h. */ |
678 | ||
679 | void | |
680 | flush_streams () | |
681 | { | |
682 | gdb_stdout->flush (); | |
683 | gdb_stderr->flush (); | |
684 | } | |
685 | ||
c906108c SS |
686 | /* My replacement for the read system call. |
687 | Used like `read' but keeps going if `read' returns too soon. */ | |
688 | ||
689 | int | |
fba45db2 | 690 | myread (int desc, char *addr, int len) |
c906108c | 691 | { |
52f0bd74 | 692 | int val; |
c906108c SS |
693 | int orglen = len; |
694 | ||
695 | while (len > 0) | |
696 | { | |
697 | val = read (desc, addr, len); | |
698 | if (val < 0) | |
699 | return val; | |
700 | if (val == 0) | |
701 | return orglen - len; | |
702 | len -= val; | |
703 | addr += val; | |
704 | } | |
705 | return orglen; | |
706 | } | |
d26e3629 | 707 | |
e55c6530 JB |
708 | /* See utils.h. */ |
709 | ||
710 | ULONGEST | |
711 | uinteger_pow (ULONGEST v1, LONGEST v2) | |
712 | { | |
713 | if (v2 < 0) | |
714 | { | |
715 | if (v1 == 0) | |
716 | error (_("Attempt to raise 0 to negative power.")); | |
717 | else | |
718 | return 0; | |
719 | } | |
720 | else | |
721 | { | |
722 | /* The Russian Peasant's Algorithm. */ | |
723 | ULONGEST v; | |
724 | ||
725 | v = 1; | |
726 | for (;;) | |
727 | { | |
728 | if (v2 & 1L) | |
729 | v *= v1; | |
730 | v2 >>= 1; | |
731 | if (v2 == 0) | |
732 | return v; | |
733 | v1 *= v1; | |
734 | } | |
735 | } | |
736 | } | |
737 | ||
c906108c | 738 | void |
aa1ee363 | 739 | print_spaces (int n, struct ui_file *file) |
c906108c | 740 | { |
392a587b | 741 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
742 | } |
743 | ||
744 | /* Print a host address. */ | |
745 | ||
746 | void | |
b80c3053 | 747 | gdb_print_host_address_1 (const void *addr, struct ui_file *stream) |
c906108c | 748 | { |
ea8992ce | 749 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 750 | } |
7c50a931 | 751 | |
c906108c | 752 | \f |
c5aa993b | 753 | |
223ffa71 TT |
754 | /* An RAII class that sets up to handle input and then tears down |
755 | during destruction. */ | |
3eb7562a | 756 | |
223ffa71 | 757 | class scoped_input_handler |
3eb7562a | 758 | { |
223ffa71 | 759 | public: |
3eb7562a | 760 | |
223ffa71 | 761 | scoped_input_handler () |
c2f97536 | 762 | : m_quit_handler (&quit_handler, default_quit_handler), |
223ffa71 TT |
763 | m_ui (NULL) |
764 | { | |
765 | target_terminal::ours (); | |
766 | ui_register_input_event_handler (current_ui); | |
767 | if (current_ui->prompt_state == PROMPT_BLOCKED) | |
768 | m_ui = current_ui; | |
769 | } | |
3eb7562a | 770 | |
223ffa71 TT |
771 | ~scoped_input_handler () |
772 | { | |
773 | if (m_ui != NULL) | |
774 | ui_unregister_input_event_handler (m_ui); | |
775 | } | |
3eb7562a | 776 | |
223ffa71 | 777 | DISABLE_COPY_AND_ASSIGN (scoped_input_handler); |
3eb7562a | 778 | |
223ffa71 | 779 | private: |
3eb7562a | 780 | |
223ffa71 TT |
781 | /* Save and restore the terminal state. */ |
782 | target_terminal::scoped_restore_terminal_state m_term_state; | |
3eb7562a | 783 | |
223ffa71 | 784 | /* Save and restore the quit handler. */ |
c2f97536 | 785 | scoped_restore_tmpl<quit_handler_ftype *> m_quit_handler; |
223ffa71 TT |
786 | |
787 | /* The saved UI, if non-NULL. */ | |
788 | struct ui *m_ui; | |
789 | }; | |
3eb7562a | 790 | |
db1ff28b JK |
791 | \f |
792 | ||
981c7f5a | 793 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 794 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
795 | answer is yes, or default the answer to the specified default |
796 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
797 | default answer, or '\0' for no default. | |
cbdeadca JJ |
798 | CTLSTR is the control string and should end in "? ". It should |
799 | not say how to answer, because we do that. | |
800 | ARGS are the arguments passed along with the CTLSTR argument to | |
801 | printf. */ | |
802 | ||
a0b31db1 | 803 | static int ATTRIBUTE_PRINTF (1, 0) |
cbdeadca JJ |
804 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
805 | { | |
cbdeadca JJ |
806 | int retval; |
807 | int def_value; | |
808 | char def_answer, not_def_answer; | |
a121b7c1 | 809 | const char *y_string, *n_string; |
cbdeadca JJ |
810 | |
811 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
812 | if (defchar == '\0') |
813 | { | |
814 | def_value = 1; | |
815 | def_answer = 'Y'; | |
816 | not_def_answer = 'N'; | |
817 | y_string = "y"; | |
818 | n_string = "n"; | |
819 | } | |
820 | else if (defchar == 'y') | |
cbdeadca JJ |
821 | { |
822 | def_value = 1; | |
823 | def_answer = 'Y'; | |
824 | not_def_answer = 'N'; | |
825 | y_string = "[y]"; | |
826 | n_string = "n"; | |
827 | } | |
828 | else | |
829 | { | |
830 | def_value = 0; | |
831 | def_answer = 'N'; | |
832 | not_def_answer = 'Y'; | |
833 | y_string = "y"; | |
834 | n_string = "[n]"; | |
835 | } | |
836 | ||
981c7f5a | 837 | /* Automatically answer the default value if the user did not want |
a502cf95 | 838 | prompts or the command was issued with the server prefix. */ |
e360902b | 839 | if (!confirm || server_command) |
981c7f5a DJ |
840 | return def_value; |
841 | ||
842 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 843 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
844 | way, important error messages don't get lost when talking to GDB |
845 | over a pipe. */ | |
268a799a | 846 | if (current_ui->instream != current_ui->stdin_stream |
26a06916 SM |
847 | || !input_interactive_p (current_ui) |
848 | /* Restrict queries to the main UI. */ | |
849 | || current_ui != main_ui) | |
981c7f5a | 850 | { |
223ffa71 TT |
851 | target_terminal::scoped_restore_terminal_state term_state; |
852 | target_terminal::ours_for_output (); | |
981c7f5a DJ |
853 | wrap_here (""); |
854 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
855 | ||
3e43a32a MS |
856 | printf_filtered (_("(%s or %s) [answered %c; " |
857 | "input not from terminal]\n"), | |
981c7f5a | 858 | y_string, n_string, def_answer); |
981c7f5a DJ |
859 | |
860 | return def_value; | |
861 | } | |
862 | ||
9a4105ab | 863 | if (deprecated_query_hook) |
cbdeadca | 864 | { |
223ffa71 TT |
865 | target_terminal::scoped_restore_terminal_state term_state; |
866 | return deprecated_query_hook (ctlstr, args); | |
651ce16a | 867 | } |
80dbc9fd | 868 | |
981c7f5a | 869 | /* Format the question outside of the loop, to avoid reusing args. */ |
e05550d7 TT |
870 | std::string question = string_vprintf (ctlstr, args); |
871 | std::string prompt | |
872 | = string_printf (_("%s%s(%s or %s) %s"), | |
873 | annotation_level > 1 ? "\n\032\032pre-query\n" : "", | |
874 | question.c_str (), y_string, n_string, | |
875 | annotation_level > 1 ? "\n\032\032query\n" : ""); | |
981c7f5a | 876 | |
dcb07cfa PA |
877 | /* Used to add duration we waited for user to respond to |
878 | prompt_for_continue_wait_time. */ | |
879 | using namespace std::chrono; | |
880 | steady_clock::time_point prompt_started = steady_clock::now (); | |
260c0b2a | 881 | |
223ffa71 | 882 | scoped_input_handler prepare_input; |
651ce16a | 883 | |
cbdeadca JJ |
884 | while (1) |
885 | { | |
588dcc3e | 886 | char *response, answer; |
cbdeadca | 887 | |
cbdeadca | 888 | gdb_flush (gdb_stdout); |
e05550d7 | 889 | response = gdb_readline_wrapper (prompt.c_str ()); |
cbdeadca | 890 | |
588dcc3e | 891 | if (response == NULL) /* C-d */ |
cbdeadca | 892 | { |
fa3fd85b | 893 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
894 | retval = def_value; |
895 | break; | |
896 | } | |
588dcc3e PP |
897 | |
898 | answer = response[0]; | |
899 | xfree (response); | |
cbdeadca JJ |
900 | |
901 | if (answer >= 'a') | |
902 | answer -= 040; | |
903 | /* Check answer. For the non-default, the user must specify | |
dda83cd7 | 904 | the non-default explicitly. */ |
cbdeadca JJ |
905 | if (answer == not_def_answer) |
906 | { | |
907 | retval = !def_value; | |
908 | break; | |
909 | } | |
981c7f5a | 910 | /* Otherwise, if a default was specified, the user may either |
dda83cd7 SM |
911 | specify the required input or have it default by entering |
912 | nothing. */ | |
981c7f5a | 913 | if (answer == def_answer |
588dcc3e | 914 | || (defchar != '\0' && answer == '\0')) |
cbdeadca JJ |
915 | { |
916 | retval = def_value; | |
917 | break; | |
918 | } | |
919 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 920 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
921 | y_string, n_string); |
922 | } | |
923 | ||
260c0b2a | 924 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
dcb07cfa | 925 | prompt_for_continue_wait_time += steady_clock::now () - prompt_started; |
260c0b2a | 926 | |
cbdeadca | 927 | if (annotation_level > 1) |
a3f17187 | 928 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
929 | return retval; |
930 | } | |
931 | \f | |
932 | ||
933 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
934 | answer is yes, or 0 if answer is defaulted. | |
935 | Takes three args which are given to printf to print the question. | |
936 | The first, a control string, should end in "? ". | |
937 | It should not say how to answer, because we do that. */ | |
938 | ||
939 | int | |
940 | nquery (const char *ctlstr, ...) | |
941 | { | |
942 | va_list args; | |
899500d6 | 943 | int ret; |
cbdeadca JJ |
944 | |
945 | va_start (args, ctlstr); | |
899500d6 | 946 | ret = defaulted_query (ctlstr, 'n', args); |
cbdeadca | 947 | va_end (args); |
899500d6 | 948 | return ret; |
cbdeadca JJ |
949 | } |
950 | ||
951 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
952 | answer is yes, or 1 if answer is defaulted. | |
953 | Takes three args which are given to printf to print the question. | |
954 | The first, a control string, should end in "? ". | |
955 | It should not say how to answer, because we do that. */ | |
956 | ||
957 | int | |
958 | yquery (const char *ctlstr, ...) | |
959 | { | |
960 | va_list args; | |
899500d6 | 961 | int ret; |
cbdeadca JJ |
962 | |
963 | va_start (args, ctlstr); | |
899500d6 | 964 | ret = defaulted_query (ctlstr, 'y', args); |
cbdeadca | 965 | va_end (args); |
899500d6 | 966 | return ret; |
cbdeadca JJ |
967 | } |
968 | ||
981c7f5a DJ |
969 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
970 | Takes three args which are given to printf to print the question. | |
971 | The first, a control string, should end in "? ". | |
972 | It should not say how to answer, because we do that. */ | |
973 | ||
974 | int | |
975 | query (const char *ctlstr, ...) | |
976 | { | |
977 | va_list args; | |
899500d6 | 978 | int ret; |
981c7f5a DJ |
979 | |
980 | va_start (args, ctlstr); | |
899500d6 | 981 | ret = defaulted_query (ctlstr, '\0', args); |
981c7f5a | 982 | va_end (args); |
899500d6 | 983 | return ret; |
981c7f5a DJ |
984 | } |
985 | ||
6c7a06a3 TT |
986 | /* A helper for parse_escape that converts a host character to a |
987 | target character. C is the host character. If conversion is | |
988 | possible, then the target character is stored in *TARGET_C and the | |
989 | function returns 1. Otherwise, the function returns 0. */ | |
990 | ||
991 | static int | |
f870a310 | 992 | host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c) |
234b45d4 | 993 | { |
6c7a06a3 | 994 | char the_char = c; |
6c7a06a3 | 995 | int result = 0; |
234b45d4 | 996 | |
8268c778 | 997 | auto_obstack host_data; |
234b45d4 | 998 | |
f870a310 | 999 | convert_between_encodings (target_charset (gdbarch), host_charset (), |
ac91cd70 PA |
1000 | (gdb_byte *) &the_char, 1, 1, |
1001 | &host_data, translit_none); | |
6c7a06a3 TT |
1002 | |
1003 | if (obstack_object_size (&host_data) == 1) | |
1004 | { | |
1005 | result = 1; | |
1006 | *target_c = *(char *) obstack_base (&host_data); | |
1007 | } | |
1008 | ||
6c7a06a3 | 1009 | return result; |
234b45d4 KB |
1010 | } |
1011 | ||
c906108c SS |
1012 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1013 | containing a pointer to the string to parse. That pointer | |
1014 | should point to the character after the \. That pointer | |
1015 | is updated past the characters we use. The value of the | |
1016 | escape sequence is returned. | |
1017 | ||
1018 | A negative value means the sequence \ newline was seen, | |
1019 | which is supposed to be equivalent to nothing at all. | |
1020 | ||
1021 | If \ is followed by a null character, we return a negative | |
1022 | value and leave the string pointer pointing at the null character. | |
1023 | ||
1024 | If \ is followed by 000, we return 0 and leave the string pointer | |
1025 | after the zeros. A value of 0 does not mean end of string. */ | |
1026 | ||
1027 | int | |
d7561cbb | 1028 | parse_escape (struct gdbarch *gdbarch, const char **string_ptr) |
c906108c | 1029 | { |
581e13c1 | 1030 | int target_char = -2; /* Initialize to avoid GCC warnings. */ |
52f0bd74 | 1031 | int c = *(*string_ptr)++; |
e0627e85 | 1032 | |
6c7a06a3 TT |
1033 | switch (c) |
1034 | { | |
8731e58e AC |
1035 | case '\n': |
1036 | return -2; | |
1037 | case 0: | |
1038 | (*string_ptr)--; | |
1039 | return 0; | |
8731e58e AC |
1040 | |
1041 | case '0': | |
1042 | case '1': | |
1043 | case '2': | |
1044 | case '3': | |
1045 | case '4': | |
1046 | case '5': | |
1047 | case '6': | |
1048 | case '7': | |
1049 | { | |
6c7a06a3 | 1050 | int i = host_hex_value (c); |
aa1ee363 | 1051 | int count = 0; |
8731e58e AC |
1052 | while (++count < 3) |
1053 | { | |
5cb316ef | 1054 | c = (**string_ptr); |
51e2cfa2 | 1055 | if (ISDIGIT (c) && c != '8' && c != '9') |
8731e58e | 1056 | { |
5cb316ef | 1057 | (*string_ptr)++; |
8731e58e | 1058 | i *= 8; |
6c7a06a3 | 1059 | i += host_hex_value (c); |
8731e58e AC |
1060 | } |
1061 | else | |
1062 | { | |
8731e58e AC |
1063 | break; |
1064 | } | |
1065 | } | |
1066 | return i; | |
1067 | } | |
6c7a06a3 TT |
1068 | |
1069 | case 'a': | |
1070 | c = '\a'; | |
1071 | break; | |
1072 | case 'b': | |
1073 | c = '\b'; | |
1074 | break; | |
1075 | case 'f': | |
1076 | c = '\f'; | |
1077 | break; | |
1078 | case 'n': | |
1079 | c = '\n'; | |
1080 | break; | |
1081 | case 'r': | |
1082 | c = '\r'; | |
1083 | break; | |
1084 | case 't': | |
1085 | c = '\t'; | |
1086 | break; | |
1087 | case 'v': | |
1088 | c = '\v'; | |
1089 | break; | |
1090 | ||
1091 | default: | |
1092 | break; | |
1093 | } | |
1094 | ||
f870a310 | 1095 | if (!host_char_to_target (gdbarch, c, &target_char)) |
3351ea09 JB |
1096 | error (_("The escape sequence `\\%c' is equivalent to plain `%c'," |
1097 | " which has no equivalent\nin the `%s' character set."), | |
905b671b | 1098 | c, c, target_charset (gdbarch)); |
6c7a06a3 | 1099 | return target_char; |
c906108c SS |
1100 | } |
1101 | \f | |
1102 | /* Print the character C on STREAM as part of the contents of a literal | |
1103 | string whose delimiter is QUOTER. Note that this routine should only | |
f9acce4a | 1104 | be called for printing things which are independent of the language |
6ef284bd SM |
1105 | of the program being debugged. |
1106 | ||
1107 | printchar will normally escape backslashes and instances of QUOTER. If | |
1108 | QUOTER is 0, printchar won't escape backslashes or any quoting character. | |
1109 | As a side effect, if you pass the backslash character as the QUOTER, | |
1110 | printchar will escape backslashes as usual, but not any other quoting | |
1111 | character. */ | |
c906108c | 1112 | |
43e526b9 | 1113 | static void |
7c4e78cf | 1114 | printchar (int c, do_fputc_ftype do_fputc, ui_file *stream, int quoter) |
c906108c | 1115 | { |
c906108c SS |
1116 | c &= 0xFF; /* Avoid sign bit follies */ |
1117 | ||
c5aa993b JM |
1118 | if (c < 0x20 || /* Low control chars */ |
1119 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1120 | (sevenbit_strings && c >= 0x80)) | |
1121 | { /* high order bit set */ | |
7c4e78cf SM |
1122 | do_fputc ('\\', stream); |
1123 | ||
c5aa993b JM |
1124 | switch (c) |
1125 | { | |
1126 | case '\n': | |
7c4e78cf | 1127 | do_fputc ('n', stream); |
c5aa993b JM |
1128 | break; |
1129 | case '\b': | |
7c4e78cf | 1130 | do_fputc ('b', stream); |
c5aa993b JM |
1131 | break; |
1132 | case '\t': | |
7c4e78cf | 1133 | do_fputc ('t', stream); |
c5aa993b JM |
1134 | break; |
1135 | case '\f': | |
7c4e78cf | 1136 | do_fputc ('f', stream); |
c5aa993b JM |
1137 | break; |
1138 | case '\r': | |
7c4e78cf | 1139 | do_fputc ('r', stream); |
c5aa993b JM |
1140 | break; |
1141 | case '\033': | |
7c4e78cf | 1142 | do_fputc ('e', stream); |
c5aa993b JM |
1143 | break; |
1144 | case '\007': | |
7c4e78cf | 1145 | do_fputc ('a', stream); |
c5aa993b JM |
1146 | break; |
1147 | default: | |
7c4e78cf SM |
1148 | { |
1149 | do_fputc ('0' + ((c >> 6) & 0x7), stream); | |
1150 | do_fputc ('0' + ((c >> 3) & 0x7), stream); | |
1151 | do_fputc ('0' + ((c >> 0) & 0x7), stream); | |
1152 | break; | |
1153 | } | |
c5aa993b JM |
1154 | } |
1155 | } | |
1156 | else | |
1157 | { | |
6ef284bd | 1158 | if (quoter != 0 && (c == '\\' || c == quoter)) |
7c4e78cf SM |
1159 | do_fputc ('\\', stream); |
1160 | do_fputc (c, stream); | |
c5aa993b | 1161 | } |
c906108c | 1162 | } |
43e526b9 JM |
1163 | |
1164 | /* Print the character C on STREAM as part of the contents of a | |
1165 | literal string whose delimiter is QUOTER. Note that these routines | |
1166 | should only be call for printing things which are independent of | |
581e13c1 | 1167 | the language of the program being debugged. */ |
43e526b9 JM |
1168 | |
1169 | void | |
fba45db2 | 1170 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1171 | { |
1172 | while (*str) | |
7c4e78cf | 1173 | printchar (*str++, fputc_filtered, stream, quoter); |
43e526b9 JM |
1174 | } |
1175 | ||
1176 | void | |
fba45db2 | 1177 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1178 | { |
1179 | while (*str) | |
7c4e78cf | 1180 | printchar (*str++, fputc_unfiltered, stream, quoter); |
43e526b9 JM |
1181 | } |
1182 | ||
0876f84a DJ |
1183 | void |
1184 | fputstrn_filtered (const char *str, int n, int quoter, | |
1185 | struct ui_file *stream) | |
1186 | { | |
7c4e78cf SM |
1187 | for (int i = 0; i < n; i++) |
1188 | printchar (str[i], fputc_filtered, stream, quoter); | |
0876f84a DJ |
1189 | } |
1190 | ||
43e526b9 | 1191 | void |
8731e58e | 1192 | fputstrn_unfiltered (const char *str, int n, int quoter, |
7c4e78cf | 1193 | do_fputc_ftype do_fputc, struct ui_file *stream) |
43e526b9 | 1194 | { |
7c4e78cf SM |
1195 | for (int i = 0; i < n; i++) |
1196 | printchar (str[i], do_fputc, stream, quoter); | |
43e526b9 | 1197 | } |
c906108c | 1198 | \f |
c5aa993b | 1199 | |
c906108c SS |
1200 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1201 | static unsigned int lines_per_page; | |
920d2a44 AC |
1202 | static void |
1203 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1204 | struct cmd_list_element *c, const char *value) | |
1205 | { | |
3e43a32a MS |
1206 | fprintf_filtered (file, |
1207 | _("Number of lines gdb thinks are in a page is %s.\n"), | |
920d2a44 AC |
1208 | value); |
1209 | } | |
eb0d3137 | 1210 | |
cbfbd72a | 1211 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1212 | static unsigned int chars_per_line; |
920d2a44 AC |
1213 | static void |
1214 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1215 | struct cmd_list_element *c, const char *value) | |
1216 | { | |
3e43a32a MS |
1217 | fprintf_filtered (file, |
1218 | _("Number of characters gdb thinks " | |
1219 | "are in a line is %s.\n"), | |
920d2a44 AC |
1220 | value); |
1221 | } | |
eb0d3137 | 1222 | |
c906108c SS |
1223 | /* Current count of lines printed on this page, chars on this line. */ |
1224 | static unsigned int lines_printed, chars_printed; | |
1225 | ||
eb6af809 TT |
1226 | /* True if pagination is disabled for just one command. */ |
1227 | ||
1228 | static bool pagination_disabled_for_command; | |
1229 | ||
c906108c SS |
1230 | /* Buffer and start column of buffered text, for doing smarter word- |
1231 | wrapping. When someone calls wrap_here(), we start buffering output | |
1232 | that comes through fputs_filtered(). If we see a newline, we just | |
1233 | spit it out and forget about the wrap_here(). If we see another | |
1234 | wrap_here(), we spit it out and remember the newer one. If we see | |
1235 | the end of the line, we spit out a newline, the indent, and then | |
1236 | the buffered output. */ | |
1237 | ||
c5603d50 | 1238 | static bool filter_initialized = false; |
c906108c | 1239 | |
c5603d50 TT |
1240 | /* Contains characters which are waiting to be output (they have |
1241 | already been counted in chars_printed). */ | |
1242 | static std::string wrap_buffer; | |
c906108c SS |
1243 | |
1244 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1245 | is non-zero. */ | |
d2c0eef4 | 1246 | static const char *wrap_indent; |
c906108c SS |
1247 | |
1248 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1249 | is not in effect. */ | |
1250 | static int wrap_column; | |
a0087920 TT |
1251 | |
1252 | /* The style applied at the time that wrap_here was called. */ | |
1253 | static ui_file_style wrap_style; | |
c906108c | 1254 | \f |
c5aa993b | 1255 | |
26c4b26f | 1256 | /* Initialize the number of lines per page and chars per line. */ |
eb0d3137 | 1257 | |
c906108c | 1258 | void |
fba45db2 | 1259 | init_page_info (void) |
c906108c | 1260 | { |
5da1313b JK |
1261 | if (batch_flag) |
1262 | { | |
1263 | lines_per_page = UINT_MAX; | |
1264 | chars_per_line = UINT_MAX; | |
1265 | } | |
1266 | else | |
c906108c | 1267 | #if defined(TUI) |
5ecb1806 | 1268 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1269 | #endif |
1270 | { | |
eb0d3137 | 1271 | int rows, cols; |
c906108c | 1272 | |
ec145965 EZ |
1273 | #if defined(__GO32__) |
1274 | rows = ScreenRows (); | |
1275 | cols = ScreenCols (); | |
1276 | lines_per_page = rows; | |
1277 | chars_per_line = cols; | |
1278 | #else | |
eb0d3137 MK |
1279 | /* Make sure Readline has initialized its terminal settings. */ |
1280 | rl_reset_terminal (NULL); | |
c906108c | 1281 | |
eb0d3137 MK |
1282 | /* Get the screen size from Readline. */ |
1283 | rl_get_screen_size (&rows, &cols); | |
1284 | lines_per_page = rows; | |
1285 | chars_per_line = cols; | |
c906108c | 1286 | |
1a66331e | 1287 | /* Readline should have fetched the termcap entry for us. |
dda83cd7 SM |
1288 | Only try to use tgetnum function if rl_get_screen_size |
1289 | did not return a useful value. */ | |
a121b7c1 | 1290 | if (((rows <= 0) && (tgetnum ((char *) "li") < 0)) |
e681cf3f EZ |
1291 | /* Also disable paging if inside Emacs. $EMACS was used |
1292 | before Emacs v25.1, $INSIDE_EMACS is used since then. */ | |
1293 | || getenv ("EMACS") || getenv ("INSIDE_EMACS")) | |
eb0d3137 | 1294 | { |
1a66331e | 1295 | /* The number of lines per page is not mentioned in the terminal |
30baf67b | 1296 | description or EMACS environment variable is set. This probably |
1a66331e | 1297 | means that paging is not useful, so disable paging. */ |
eb0d3137 MK |
1298 | lines_per_page = UINT_MAX; |
1299 | } | |
c906108c | 1300 | |
c906108c | 1301 | /* If the output is not a terminal, don't paginate it. */ |
da5bd37e | 1302 | if (!gdb_stdout->isatty ()) |
c5aa993b | 1303 | lines_per_page = UINT_MAX; |
eb0d3137 | 1304 | #endif |
ec145965 | 1305 | } |
eb0d3137 | 1306 | |
24b73f8e PP |
1307 | /* We handle SIGWINCH ourselves. */ |
1308 | rl_catch_sigwinch = 0; | |
1309 | ||
eb0d3137 | 1310 | set_screen_size (); |
c5aa993b | 1311 | set_width (); |
c906108c SS |
1312 | } |
1313 | ||
2437fd32 GB |
1314 | /* Return nonzero if filtered printing is initialized. */ |
1315 | int | |
1316 | filtered_printing_initialized (void) | |
1317 | { | |
c5603d50 | 1318 | return filter_initialized; |
2437fd32 GB |
1319 | } |
1320 | ||
b95de2b7 TT |
1321 | set_batch_flag_and_restore_page_info::set_batch_flag_and_restore_page_info () |
1322 | : m_save_lines_per_page (lines_per_page), | |
1323 | m_save_chars_per_line (chars_per_line), | |
1324 | m_save_batch_flag (batch_flag) | |
5da1313b | 1325 | { |
b95de2b7 TT |
1326 | batch_flag = 1; |
1327 | init_page_info (); | |
5da1313b JK |
1328 | } |
1329 | ||
b95de2b7 | 1330 | set_batch_flag_and_restore_page_info::~set_batch_flag_and_restore_page_info () |
5da1313b | 1331 | { |
b95de2b7 TT |
1332 | batch_flag = m_save_batch_flag; |
1333 | chars_per_line = m_save_chars_per_line; | |
1334 | lines_per_page = m_save_lines_per_page; | |
5da1313b | 1335 | |
b95de2b7 TT |
1336 | set_screen_size (); |
1337 | set_width (); | |
5da1313b JK |
1338 | } |
1339 | ||
eb0d3137 MK |
1340 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1341 | ||
1342 | static void | |
1343 | set_screen_size (void) | |
1344 | { | |
1345 | int rows = lines_per_page; | |
1346 | int cols = chars_per_line; | |
1347 | ||
23031e31 SJ |
1348 | /* If we get 0 or negative ROWS or COLS, treat as "infinite" size. |
1349 | A negative number can be seen here with the "set width/height" | |
1350 | commands and either: | |
eb0d3137 | 1351 | |
23031e31 | 1352 | - the user specified "unlimited", which maps to UINT_MAX, or |
85102364 | 1353 | - the user specified some number between INT_MAX and UINT_MAX. |
23031e31 SJ |
1354 | |
1355 | Cap "infinity" to approximately sqrt(INT_MAX) so that we don't | |
1356 | overflow in rl_set_screen_size, which multiplies rows and columns | |
1357 | to compute the number of characters on the screen. */ | |
1358 | ||
1359 | const int sqrt_int_max = INT_MAX >> (sizeof (int) * 8 / 2); | |
1360 | ||
1361 | if (rows <= 0 || rows > sqrt_int_max) | |
8ed25214 PA |
1362 | { |
1363 | rows = sqrt_int_max; | |
1364 | lines_per_page = UINT_MAX; | |
1365 | } | |
23031e31 SJ |
1366 | |
1367 | if (cols <= 0 || cols > sqrt_int_max) | |
8ed25214 PA |
1368 | { |
1369 | cols = sqrt_int_max; | |
1370 | chars_per_line = UINT_MAX; | |
1371 | } | |
eb0d3137 MK |
1372 | |
1373 | /* Update Readline's idea of the terminal size. */ | |
1374 | rl_set_screen_size (rows, cols); | |
1375 | } | |
1376 | ||
c5603d50 | 1377 | /* Reinitialize WRAP_BUFFER. */ |
eb0d3137 | 1378 | |
c906108c | 1379 | static void |
fba45db2 | 1380 | set_width (void) |
c906108c SS |
1381 | { |
1382 | if (chars_per_line == 0) | |
c5aa993b | 1383 | init_page_info (); |
c906108c | 1384 | |
c5603d50 TT |
1385 | wrap_buffer.clear (); |
1386 | filter_initialized = true; | |
c906108c SS |
1387 | } |
1388 | ||
c5aa993b | 1389 | static void |
eb4c3f4a | 1390 | set_width_command (const char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1391 | { |
eb0d3137 | 1392 | set_screen_size (); |
c906108c SS |
1393 | set_width (); |
1394 | } | |
1395 | ||
eb0d3137 | 1396 | static void |
eb4c3f4a | 1397 | set_height_command (const char *args, int from_tty, struct cmd_list_element *c) |
eb0d3137 MK |
1398 | { |
1399 | set_screen_size (); | |
1400 | } | |
1401 | ||
d6e5e7f7 PP |
1402 | /* See utils.h. */ |
1403 | ||
1404 | void | |
1405 | set_screen_width_and_height (int width, int height) | |
1406 | { | |
1407 | lines_per_page = height; | |
1408 | chars_per_line = width; | |
1409 | ||
1410 | set_screen_size (); | |
1411 | set_width (); | |
1412 | } | |
1413 | ||
cbe56571 TT |
1414 | /* The currently applied style. */ |
1415 | ||
1416 | static ui_file_style applied_style; | |
1417 | ||
a0087920 TT |
1418 | /* Emit an ANSI style escape for STYLE. If STREAM is nullptr, emit to |
1419 | the wrap buffer; otherwise emit to STREAM. */ | |
cbe56571 TT |
1420 | |
1421 | static void | |
a0087920 TT |
1422 | emit_style_escape (const ui_file_style &style, |
1423 | struct ui_file *stream = nullptr) | |
cbe56571 | 1424 | { |
e7b43072 AB |
1425 | if (applied_style != style) |
1426 | { | |
1427 | applied_style = style; | |
cbe56571 | 1428 | |
e7b43072 AB |
1429 | if (stream == nullptr) |
1430 | wrap_buffer.append (style.to_ansi ()); | |
1431 | else | |
1432 | stream->puts (style.to_ansi ().c_str ()); | |
1433 | } | |
cbe56571 TT |
1434 | } |
1435 | ||
ef1dfa36 TT |
1436 | /* Set the current output style. This will affect future uses of the |
1437 | _filtered output functions. */ | |
1438 | ||
1439 | static void | |
1440 | set_output_style (struct ui_file *stream, const ui_file_style &style) | |
1441 | { | |
8a522c6c | 1442 | if (!stream->can_emit_style_escape ()) |
cbe56571 TT |
1443 | return; |
1444 | ||
046bebe1 | 1445 | /* Note that we may not pass STREAM here, when we want to emit to |
a0087920 | 1446 | the wrap buffer, not directly to STREAM. */ |
046bebe1 TT |
1447 | if (stream == gdb_stdout) |
1448 | stream = nullptr; | |
1449 | emit_style_escape (style, stream); | |
cbe56571 TT |
1450 | } |
1451 | ||
ef1dfa36 TT |
1452 | /* See utils.h. */ |
1453 | ||
1454 | void | |
1455 | reset_terminal_style (struct ui_file *stream) | |
1456 | { | |
8a522c6c | 1457 | if (stream->can_emit_style_escape ()) |
ef1dfa36 TT |
1458 | { |
1459 | /* Force the setting, regardless of what we think the setting | |
1460 | might already be. */ | |
a0087920 TT |
1461 | applied_style = ui_file_style (); |
1462 | wrap_buffer.append (applied_style.to_ansi ()); | |
ef1dfa36 TT |
1463 | } |
1464 | } | |
1465 | ||
c906108c | 1466 | /* Wait, so the user can read what's on the screen. Prompt the user |
720d2e96 PA |
1467 | to continue by pressing RETURN. 'q' is also provided because |
1468 | telling users what to do in the prompt is more user-friendly than | |
1469 | expecting them to think of Ctrl-C/SIGINT. */ | |
c906108c SS |
1470 | |
1471 | static void | |
fba45db2 | 1472 | prompt_for_continue (void) |
c906108c | 1473 | { |
c906108c | 1474 | char cont_prompt[120]; |
260c0b2a DE |
1475 | /* Used to add duration we waited for user to respond to |
1476 | prompt_for_continue_wait_time. */ | |
dcb07cfa PA |
1477 | using namespace std::chrono; |
1478 | steady_clock::time_point prompt_started = steady_clock::now (); | |
eb6af809 | 1479 | bool disable_pagination = pagination_disabled_for_command; |
c906108c | 1480 | |
cbe56571 | 1481 | /* Clear the current styling. */ |
8a522c6c | 1482 | if (gdb_stdout->can_emit_style_escape ()) |
a0087920 | 1483 | emit_style_escape (ui_file_style (), gdb_stdout); |
cbe56571 | 1484 | |
c906108c | 1485 | if (annotation_level > 1) |
a3f17187 | 1486 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
1487 | |
1488 | strcpy (cont_prompt, | |
eb6af809 TT |
1489 | "--Type <RET> for more, q to quit, " |
1490 | "c to continue without paging--"); | |
c906108c SS |
1491 | if (annotation_level > 1) |
1492 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1493 | ||
720d2e96 PA |
1494 | /* We must do this *before* we call gdb_readline_wrapper, else it |
1495 | will eventually call us -- thinking that we're trying to print | |
1496 | beyond the end of the screen. */ | |
c906108c SS |
1497 | reinitialize_more_filter (); |
1498 | ||
223ffa71 | 1499 | scoped_input_handler prepare_input; |
82584158 | 1500 | |
720d2e96 PA |
1501 | /* Call gdb_readline_wrapper, not readline, in order to keep an |
1502 | event loop running. */ | |
5aa89276 | 1503 | gdb::unique_xmalloc_ptr<char> ignore (gdb_readline_wrapper (cont_prompt)); |
c906108c | 1504 | |
260c0b2a | 1505 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
dcb07cfa | 1506 | prompt_for_continue_wait_time += steady_clock::now () - prompt_started; |
260c0b2a | 1507 | |
c906108c | 1508 | if (annotation_level > 1) |
a3f17187 | 1509 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c | 1510 | |
80dbc9fd | 1511 | if (ignore != NULL) |
c906108c | 1512 | { |
5aa89276 | 1513 | char *p = ignore.get (); |
5d502164 | 1514 | |
c906108c SS |
1515 | while (*p == ' ' || *p == '\t') |
1516 | ++p; | |
1517 | if (p[0] == 'q') | |
1690b616 SL |
1518 | /* Do not call quit here; there is no possibility of SIGINT. */ |
1519 | throw_quit ("Quit"); | |
eb6af809 TT |
1520 | if (p[0] == 'c') |
1521 | disable_pagination = true; | |
c906108c | 1522 | } |
c906108c SS |
1523 | |
1524 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1525 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1526 | reinitialize_more_filter (); | |
eb6af809 | 1527 | pagination_disabled_for_command = disable_pagination; |
c906108c | 1528 | |
581e13c1 | 1529 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ |
c906108c SS |
1530 | } |
1531 | ||
26c4b26f | 1532 | /* Initialize timer to keep track of how long we waited for the user. */ |
bd712aed DE |
1533 | |
1534 | void | |
1535 | reset_prompt_for_continue_wait_time (void) | |
1536 | { | |
dcb07cfa | 1537 | using namespace std::chrono; |
bd712aed | 1538 | |
dcb07cfa | 1539 | prompt_for_continue_wait_time = steady_clock::duration::zero (); |
bd712aed DE |
1540 | } |
1541 | ||
1542 | /* Fetch the cumulative time spent in prompt_for_continue. */ | |
1543 | ||
dcb07cfa PA |
1544 | std::chrono::steady_clock::duration |
1545 | get_prompt_for_continue_wait_time () | |
bd712aed DE |
1546 | { |
1547 | return prompt_for_continue_wait_time; | |
1548 | } | |
1549 | ||
c906108c SS |
1550 | /* Reinitialize filter; ie. tell it to reset to original values. */ |
1551 | ||
1552 | void | |
fba45db2 | 1553 | reinitialize_more_filter (void) |
c906108c SS |
1554 | { |
1555 | lines_printed = 0; | |
1556 | chars_printed = 0; | |
eb6af809 | 1557 | pagination_disabled_for_command = false; |
c906108c SS |
1558 | } |
1559 | ||
c5603d50 TT |
1560 | /* Flush the wrap buffer to STREAM, if necessary. */ |
1561 | ||
1562 | static void | |
1563 | flush_wrap_buffer (struct ui_file *stream) | |
1564 | { | |
a0087920 | 1565 | if (stream == gdb_stdout && !wrap_buffer.empty ()) |
c5603d50 | 1566 | { |
da5bd37e | 1567 | stream->puts (wrap_buffer.c_str ()); |
c5603d50 TT |
1568 | wrap_buffer.clear (); |
1569 | } | |
1570 | } | |
1571 | ||
faa17681 IB |
1572 | /* See utils.h. */ |
1573 | ||
1574 | void | |
1575 | gdb_flush (struct ui_file *stream) | |
1576 | { | |
1577 | flush_wrap_buffer (stream); | |
da5bd37e | 1578 | stream->flush (); |
faa17681 IB |
1579 | } |
1580 | ||
2f228731 TT |
1581 | /* See utils.h. */ |
1582 | ||
1583 | int | |
1584 | get_chars_per_line () | |
1585 | { | |
1586 | return chars_per_line; | |
1587 | } | |
1588 | ||
c906108c | 1589 | /* Indicate that if the next sequence of characters overflows the line, |
581e13c1 | 1590 | a newline should be inserted here rather than when it hits the end. |
c906108c SS |
1591 | If INDENT is non-null, it is a string to be printed to indent the |
1592 | wrapped part on the next line. INDENT must remain accessible until | |
1593 | the next call to wrap_here() or until a newline is printed through | |
1594 | fputs_filtered(). | |
1595 | ||
1596 | If the line is already overfull, we immediately print a newline and | |
1597 | the indentation, and disable further wrapping. | |
1598 | ||
1599 | If we don't know the width of lines, but we know the page height, | |
1600 | we must not wrap words, but should still keep track of newlines | |
1601 | that were explicitly printed. | |
1602 | ||
1603 | INDENT should not contain tabs, as that will mess up the char count | |
1604 | on the next line. FIXME. | |
1605 | ||
1606 | This routine is guaranteed to force out any output which has been | |
1607 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1608 | used to force out output from the wrap_buffer. */ | |
1609 | ||
1610 | void | |
d2c0eef4 | 1611 | wrap_here (const char *indent) |
c906108c | 1612 | { |
581e13c1 | 1613 | /* This should have been allocated, but be paranoid anyway. */ |
e2ff18a0 | 1614 | gdb_assert (filter_initialized); |
c906108c | 1615 | |
c5603d50 | 1616 | flush_wrap_buffer (gdb_stdout); |
3e43a32a | 1617 | if (chars_per_line == UINT_MAX) /* No line overflow checking. */ |
c906108c SS |
1618 | { |
1619 | wrap_column = 0; | |
1620 | } | |
1621 | else if (chars_printed >= chars_per_line) | |
1622 | { | |
1623 | puts_filtered ("\n"); | |
1624 | if (indent != NULL) | |
1625 | puts_filtered (indent); | |
1626 | wrap_column = 0; | |
1627 | } | |
1628 | else | |
1629 | { | |
1630 | wrap_column = chars_printed; | |
1631 | if (indent == NULL) | |
1632 | wrap_indent = ""; | |
1633 | else | |
1634 | wrap_indent = indent; | |
a0087920 | 1635 | wrap_style = applied_style; |
c906108c SS |
1636 | } |
1637 | } | |
1638 | ||
4a351cef | 1639 | /* Print input string to gdb_stdout, filtered, with wrap, |
581e13c1 | 1640 | arranging strings in columns of n chars. String can be |
4a351cef AF |
1641 | right or left justified in the column. Never prints |
1642 | trailing spaces. String should never be longer than | |
1643 | width. FIXME: this could be useful for the EXAMINE | |
581e13c1 | 1644 | command, which currently doesn't tabulate very well. */ |
4a351cef AF |
1645 | |
1646 | void | |
1647 | puts_filtered_tabular (char *string, int width, int right) | |
1648 | { | |
1649 | int spaces = 0; | |
1650 | int stringlen; | |
1651 | char *spacebuf; | |
1652 | ||
1653 | gdb_assert (chars_per_line > 0); | |
1654 | if (chars_per_line == UINT_MAX) | |
1655 | { | |
1656 | fputs_filtered (string, gdb_stdout); | |
1657 | fputs_filtered ("\n", gdb_stdout); | |
1658 | return; | |
1659 | } | |
1660 | ||
1661 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
1662 | fputs_filtered ("\n", gdb_stdout); | |
1663 | ||
1664 | if (width >= chars_per_line) | |
1665 | width = chars_per_line - 1; | |
1666 | ||
1667 | stringlen = strlen (string); | |
1668 | ||
1669 | if (chars_printed > 0) | |
1670 | spaces = width - (chars_printed - 1) % width - 1; | |
1671 | if (right) | |
1672 | spaces += width - stringlen; | |
1673 | ||
224c3ddb | 1674 | spacebuf = (char *) alloca (spaces + 1); |
4a351cef AF |
1675 | spacebuf[spaces] = '\0'; |
1676 | while (spaces--) | |
1677 | spacebuf[spaces] = ' '; | |
1678 | ||
1679 | fputs_filtered (spacebuf, gdb_stdout); | |
1680 | fputs_filtered (string, gdb_stdout); | |
1681 | } | |
1682 | ||
1683 | ||
c906108c | 1684 | /* Ensure that whatever gets printed next, using the filtered output |
581e13c1 | 1685 | commands, starts at the beginning of the line. I.e. if there is |
c906108c | 1686 | any pending output for the current line, flush it and start a new |
581e13c1 | 1687 | line. Otherwise do nothing. */ |
c906108c SS |
1688 | |
1689 | void | |
fba45db2 | 1690 | begin_line (void) |
c906108c SS |
1691 | { |
1692 | if (chars_printed > 0) | |
1693 | { | |
1694 | puts_filtered ("\n"); | |
1695 | } | |
1696 | } | |
1697 | ||
ac9a91a7 | 1698 | |
c906108c SS |
1699 | /* Like fputs but if FILTER is true, pause after every screenful. |
1700 | ||
1701 | Regardless of FILTER can wrap at points other than the final | |
1702 | character of a line. | |
1703 | ||
1704 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
1705 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
1706 | anything. | |
1707 | ||
1708 | Note that a longjmp to top level may occur in this routine (only if | |
1709 | FILTER is true) (since prompt_for_continue may do so) so this | |
1710 | routine should not be called when cleanups are not in place. */ | |
1711 | ||
1712 | static void | |
fba45db2 KB |
1713 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
1714 | int filter) | |
c906108c SS |
1715 | { |
1716 | const char *lineptr; | |
1717 | ||
1718 | if (linebuffer == 0) | |
1719 | return; | |
1720 | ||
1721 | /* Don't do any filtering if it is disabled. */ | |
390a8aca | 1722 | if (stream != gdb_stdout |
b2e7f004 | 1723 | || !pagination_enabled |
eb6af809 | 1724 | || pagination_disabled_for_command |
b2e7f004 | 1725 | || batch_flag |
390a8aca | 1726 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) |
58dadb1b | 1727 | || top_level_interpreter () == NULL |
29f94340 | 1728 | || top_level_interpreter ()->interp_ui_out ()->is_mi_like_p ()) |
c906108c | 1729 | { |
c5603d50 | 1730 | flush_wrap_buffer (stream); |
da5bd37e | 1731 | stream->puts (linebuffer); |
c906108c SS |
1732 | return; |
1733 | } | |
1734 | ||
a0087920 TT |
1735 | auto buffer_clearer |
1736 | = make_scope_exit ([&] () | |
1737 | { | |
1738 | wrap_buffer.clear (); | |
1739 | wrap_column = 0; | |
1740 | wrap_indent = ""; | |
1741 | }); | |
1742 | ||
c906108c SS |
1743 | /* Go through and output each character. Show line extension |
1744 | when this is necessary; prompt user for new page when this is | |
1745 | necessary. */ | |
c5aa993b | 1746 | |
c906108c SS |
1747 | lineptr = linebuffer; |
1748 | while (*lineptr) | |
1749 | { | |
eb6af809 TT |
1750 | /* Possible new page. Note that PAGINATION_DISABLED_FOR_COMMAND |
1751 | might be set during this loop, so we must continue to check | |
1752 | it here. */ | |
1753 | if (filter && (lines_printed >= lines_per_page - 1) | |
1754 | && !pagination_disabled_for_command) | |
c906108c SS |
1755 | prompt_for_continue (); |
1756 | ||
1757 | while (*lineptr && *lineptr != '\n') | |
1758 | { | |
a0087920 TT |
1759 | int skip_bytes; |
1760 | ||
c906108c SS |
1761 | /* Print a single line. */ |
1762 | if (*lineptr == '\t') | |
1763 | { | |
c5603d50 | 1764 | wrap_buffer.push_back ('\t'); |
c906108c | 1765 | /* Shifting right by 3 produces the number of tab stops |
dda83cd7 SM |
1766 | we have already passed, and then adding one and |
1767 | shifting left 3 advances to the next tab stop. */ | |
c906108c SS |
1768 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
1769 | lineptr++; | |
1770 | } | |
a0087920 TT |
1771 | else if (*lineptr == '\033' |
1772 | && skip_ansi_escape (lineptr, &skip_bytes)) | |
1773 | { | |
1774 | wrap_buffer.append (lineptr, skip_bytes); | |
1775 | /* Note that we don't consider this a character, so we | |
1776 | don't increment chars_printed here. */ | |
1777 | lineptr += skip_bytes; | |
1778 | } | |
2f228731 TT |
1779 | else if (*lineptr == '\r') |
1780 | { | |
1781 | wrap_buffer.push_back (*lineptr); | |
1782 | chars_printed = 0; | |
1783 | lineptr++; | |
1784 | } | |
c906108c SS |
1785 | else |
1786 | { | |
c5603d50 | 1787 | wrap_buffer.push_back (*lineptr); |
c906108c SS |
1788 | chars_printed++; |
1789 | lineptr++; | |
1790 | } | |
c5aa993b | 1791 | |
c906108c SS |
1792 | if (chars_printed >= chars_per_line) |
1793 | { | |
1794 | unsigned int save_chars = chars_printed; | |
1795 | ||
99f20f08 TT |
1796 | /* If we change the style, below, we'll want to reset it |
1797 | before continuing to print. If there is no wrap | |
1798 | column, then we'll only reset the style if the pager | |
1799 | prompt is given; and to avoid emitting style | |
1800 | sequences in the middle of a run of text, we track | |
1801 | this as well. */ | |
e7b43072 | 1802 | ui_file_style save_style = applied_style; |
99f20f08 TT |
1803 | bool did_paginate = false; |
1804 | ||
c906108c SS |
1805 | chars_printed = 0; |
1806 | lines_printed++; | |
c906108c | 1807 | if (wrap_column) |
cbe56571 | 1808 | { |
e7b43072 AB |
1809 | /* We are about to insert a newline at an historic |
1810 | location in the WRAP_BUFFER. Before we do we want to | |
1811 | restore the default style. To know if we actually | |
1812 | need to insert an escape sequence we must restore the | |
1813 | current applied style to how it was at the WRAP_COLUMN | |
1814 | location. */ | |
1815 | applied_style = wrap_style; | |
8a522c6c | 1816 | if (stream->can_emit_style_escape ()) |
a0087920 TT |
1817 | emit_style_escape (ui_file_style (), stream); |
1818 | /* If we aren't actually wrapping, don't output | |
1819 | newline -- if chars_per_line is right, we | |
1820 | probably just overflowed anyway; if it's wrong, | |
1821 | let us keep going. */ | |
3f702acd SDJ |
1822 | /* XXX: The ideal thing would be to call |
1823 | 'stream->putc' here, but we can't because it | |
1824 | currently calls 'fputc_unfiltered', which ends up | |
1825 | calling us, which generates an infinite | |
1826 | recursion. */ | |
1827 | stream->puts ("\n"); | |
cbe56571 | 1828 | } |
a0087920 | 1829 | else |
e7b43072 | 1830 | flush_wrap_buffer (stream); |
c906108c | 1831 | |
eb6af809 TT |
1832 | /* Possible new page. Note that |
1833 | PAGINATION_DISABLED_FOR_COMMAND might be set during | |
1834 | this loop, so we must continue to check it here. */ | |
1835 | if (lines_printed >= lines_per_page - 1 | |
1836 | && !pagination_disabled_for_command) | |
99f20f08 TT |
1837 | { |
1838 | prompt_for_continue (); | |
1839 | did_paginate = true; | |
1840 | } | |
c906108c | 1841 | |
581e13c1 | 1842 | /* Now output indentation and wrapped string. */ |
c906108c SS |
1843 | if (wrap_column) |
1844 | { | |
da5bd37e | 1845 | stream->puts (wrap_indent); |
e7b43072 AB |
1846 | |
1847 | /* Having finished inserting the wrapping we should | |
1848 | restore the style as it was at the WRAP_COLUMN. */ | |
8a522c6c | 1849 | if (stream->can_emit_style_escape ()) |
e7b43072 AB |
1850 | emit_style_escape (wrap_style, stream); |
1851 | ||
1852 | /* The WRAP_BUFFER will still contain content, and that | |
1853 | content might set some alternative style. Restore | |
1854 | APPLIED_STYLE as it was before we started wrapping, | |
1855 | this reflects the current style for the last character | |
1856 | in WRAP_BUFFER. */ | |
1857 | applied_style = save_style; | |
1858 | ||
c906108c SS |
1859 | /* FIXME, this strlen is what prevents wrap_indent from |
1860 | containing tabs. However, if we recurse to print it | |
1861 | and count its chars, we risk trouble if wrap_indent is | |
581e13c1 | 1862 | longer than (the user settable) chars_per_line. |
c906108c SS |
1863 | Note also that this can set chars_printed > chars_per_line |
1864 | if we are printing a long string. */ | |
1865 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 1866 | + (save_chars - wrap_column); |
c5aa993b JM |
1867 | wrap_column = 0; /* And disable fancy wrap */ |
1868 | } | |
ca1df239 | 1869 | else if (did_paginate && stream->can_emit_style_escape ()) |
99f20f08 | 1870 | emit_style_escape (save_style, stream); |
c906108c SS |
1871 | } |
1872 | } | |
1873 | ||
1874 | if (*lineptr == '\n') | |
1875 | { | |
1876 | chars_printed = 0; | |
3e43a32a MS |
1877 | wrap_here ((char *) 0); /* Spit out chars, cancel |
1878 | further wraps. */ | |
c906108c | 1879 | lines_printed++; |
3f702acd SDJ |
1880 | /* XXX: The ideal thing would be to call |
1881 | 'stream->putc' here, but we can't because it | |
1882 | currently calls 'fputc_unfiltered', which ends up | |
1883 | calling us, which generates an infinite | |
1884 | recursion. */ | |
1885 | stream->puts ("\n"); | |
c906108c SS |
1886 | lineptr++; |
1887 | } | |
1888 | } | |
a0087920 TT |
1889 | |
1890 | buffer_clearer.release (); | |
c906108c SS |
1891 | } |
1892 | ||
1893 | void | |
fba45db2 | 1894 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
1895 | { |
1896 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1897 | } | |
1898 | ||
dfcb27e4 IB |
1899 | void |
1900 | fputs_unfiltered (const char *linebuffer, struct ui_file *stream) | |
1901 | { | |
1902 | fputs_maybe_filtered (linebuffer, stream, 0); | |
1903 | } | |
1904 | ||
cbe56571 TT |
1905 | /* See utils.h. */ |
1906 | ||
1907 | void | |
1908 | fputs_styled (const char *linebuffer, const ui_file_style &style, | |
1909 | struct ui_file *stream) | |
1910 | { | |
e7b43072 AB |
1911 | set_output_style (stream, style); |
1912 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1913 | set_output_style (stream, ui_file_style ()); | |
cbe56571 TT |
1914 | } |
1915 | ||
9303eb2f PW |
1916 | /* See utils.h. */ |
1917 | ||
2a3c1174 PA |
1918 | void |
1919 | fputs_styled_unfiltered (const char *linebuffer, const ui_file_style &style, | |
1920 | struct ui_file *stream) | |
1921 | { | |
e7b43072 AB |
1922 | set_output_style (stream, style); |
1923 | fputs_maybe_filtered (linebuffer, stream, 0); | |
1924 | set_output_style (stream, ui_file_style ()); | |
2a3c1174 PA |
1925 | } |
1926 | ||
1927 | /* See utils.h. */ | |
1928 | ||
9303eb2f PW |
1929 | void |
1930 | fputs_highlighted (const char *str, const compiled_regex &highlight, | |
1931 | struct ui_file *stream) | |
1932 | { | |
1933 | regmatch_t pmatch; | |
1934 | ||
1935 | while (*str && highlight.exec (str, 1, &pmatch, 0) == 0) | |
1936 | { | |
1937 | size_t n_highlight = pmatch.rm_eo - pmatch.rm_so; | |
1938 | ||
1939 | /* Output the part before pmatch with current style. */ | |
1940 | while (pmatch.rm_so > 0) | |
1941 | { | |
1942 | fputc_filtered (*str, stream); | |
1943 | pmatch.rm_so--; | |
1944 | str++; | |
1945 | } | |
1946 | ||
1947 | /* Output pmatch with the highlight style. */ | |
1948 | set_output_style (stream, highlight_style.style ()); | |
1949 | while (n_highlight > 0) | |
1950 | { | |
1951 | fputc_filtered (*str, stream); | |
1952 | n_highlight--; | |
1953 | str++; | |
1954 | } | |
1955 | set_output_style (stream, ui_file_style ()); | |
1956 | } | |
1957 | ||
1958 | /* Output the trailing part of STR not matching HIGHLIGHT. */ | |
1959 | if (*str) | |
1960 | fputs_filtered (str, stream); | |
1961 | } | |
1962 | ||
c906108c | 1963 | int |
fba45db2 | 1964 | putchar_unfiltered (int c) |
c906108c | 1965 | { |
3f702acd | 1966 | return fputc_unfiltered (c, gdb_stdout); |
c906108c SS |
1967 | } |
1968 | ||
d1f4cff8 AC |
1969 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
1970 | May return nonlocally. */ | |
1971 | ||
1972 | int | |
1973 | putchar_filtered (int c) | |
1974 | { | |
1975 | return fputc_filtered (c, gdb_stdout); | |
1976 | } | |
1977 | ||
c906108c | 1978 | int |
fba45db2 | 1979 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 1980 | { |
3f702acd | 1981 | char buf[2]; |
e0627e85 | 1982 | |
3f702acd SDJ |
1983 | buf[0] = c; |
1984 | buf[1] = 0; | |
1985 | fputs_unfiltered (buf, stream); | |
c906108c SS |
1986 | return c; |
1987 | } | |
1988 | ||
1989 | int | |
fba45db2 | 1990 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
1991 | { |
1992 | char buf[2]; | |
1993 | ||
1994 | buf[0] = c; | |
1995 | buf[1] = 0; | |
1996 | fputs_filtered (buf, stream); | |
1997 | return c; | |
1998 | } | |
1999 | ||
2000 | /* puts_debug is like fputs_unfiltered, except it prints special | |
2001 | characters in printable fashion. */ | |
2002 | ||
2003 | void | |
fba45db2 | 2004 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
2005 | { |
2006 | int ch; | |
2007 | ||
2008 | /* Print prefix and suffix after each line. */ | |
2009 | static int new_line = 1; | |
2010 | static int return_p = 0; | |
a121b7c1 PA |
2011 | static const char *prev_prefix = ""; |
2012 | static const char *prev_suffix = ""; | |
c906108c SS |
2013 | |
2014 | if (*string == '\n') | |
2015 | return_p = 0; | |
2016 | ||
2017 | /* If the prefix is changing, print the previous suffix, a new line, | |
2018 | and the new prefix. */ | |
c5aa993b | 2019 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2020 | { |
9846de1b JM |
2021 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2022 | fputs_unfiltered ("\n", gdb_stdlog); | |
2023 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2024 | } |
2025 | ||
2026 | /* Print prefix if we printed a newline during the previous call. */ | |
2027 | if (new_line) | |
2028 | { | |
2029 | new_line = 0; | |
9846de1b | 2030 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2031 | } |
2032 | ||
2033 | prev_prefix = prefix; | |
2034 | prev_suffix = suffix; | |
2035 | ||
2036 | /* Output characters in a printable format. */ | |
2037 | while ((ch = *string++) != '\0') | |
2038 | { | |
2039 | switch (ch) | |
c5aa993b | 2040 | { |
c906108c | 2041 | default: |
51e2cfa2 | 2042 | if (gdb_isprint (ch)) |
9846de1b | 2043 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2044 | |
2045 | else | |
9846de1b | 2046 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2047 | break; |
2048 | ||
c5aa993b JM |
2049 | case '\\': |
2050 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2051 | break; | |
2052 | case '\b': | |
2053 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2054 | break; | |
2055 | case '\f': | |
2056 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2057 | break; | |
2058 | case '\n': | |
2059 | new_line = 1; | |
2060 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2061 | break; | |
2062 | case '\r': | |
2063 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2064 | break; | |
2065 | case '\t': | |
2066 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2067 | break; | |
2068 | case '\v': | |
2069 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2070 | break; | |
2071 | } | |
c906108c SS |
2072 | |
2073 | return_p = ch == '\r'; | |
2074 | } | |
2075 | ||
2076 | /* Print suffix if we printed a newline. */ | |
2077 | if (new_line) | |
2078 | { | |
9846de1b JM |
2079 | fputs_unfiltered (suffix, gdb_stdlog); |
2080 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2081 | } |
2082 | } | |
2083 | ||
2084 | ||
2085 | /* Print a variable number of ARGS using format FORMAT. If this | |
2086 | information is going to put the amount written (since the last call | |
2087 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
85102364 | 2088 | call prompt_for_continue to get the users permission to continue. |
c906108c SS |
2089 | |
2090 | Unlike fprintf, this function does not return a value. | |
2091 | ||
2092 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2093 | fprintf (takes a stream to write on), and printf (the usual). | |
2094 | ||
2a3c1174 PA |
2095 | Note also that this may throw a quit (since prompt_for_continue may |
2096 | do so). */ | |
c906108c SS |
2097 | |
2098 | static void | |
fba45db2 | 2099 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2a3c1174 | 2100 | va_list args, bool filter, bool gdbfmt) |
c906108c | 2101 | { |
2a3c1174 PA |
2102 | if (gdbfmt) |
2103 | { | |
2104 | ui_out_flags flags = disallow_ui_out_field; | |
2105 | if (!filter) | |
2106 | flags |= unfiltered_output; | |
2107 | cli_ui_out (stream, flags).vmessage (applied_style, format, args); | |
2108 | } | |
2109 | else | |
2110 | { | |
2111 | std::string str = string_vprintf (format, args); | |
2112 | fputs_maybe_filtered (str.c_str (), stream, filter); | |
2113 | } | |
c906108c SS |
2114 | } |
2115 | ||
2116 | ||
2117 | void | |
fba45db2 | 2118 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c | 2119 | { |
2a3c1174 | 2120 | vfprintf_maybe_filtered (stream, format, args, true, true); |
c906108c SS |
2121 | } |
2122 | ||
2123 | void | |
fba45db2 | 2124 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c | 2125 | { |
75feb17d DJ |
2126 | if (debug_timestamp && stream == gdb_stdlog) |
2127 | { | |
335709bc | 2128 | static bool needs_timestamp = true; |
75feb17d | 2129 | |
335709bc SM |
2130 | /* Print timestamp if previous print ended with a \n. */ |
2131 | if (needs_timestamp) | |
2132 | { | |
2133 | using namespace std::chrono; | |
2134 | ||
2135 | steady_clock::time_point now = steady_clock::now (); | |
2136 | seconds s = duration_cast<seconds> (now.time_since_epoch ()); | |
2137 | microseconds us = duration_cast<microseconds> (now.time_since_epoch () - s); | |
2138 | std::string timestamp = string_printf ("%ld.%06ld ", | |
2139 | (long) s.count (), | |
2140 | (long) us.count ()); | |
2141 | fputs_unfiltered (timestamp.c_str (), stream); | |
2142 | } | |
2143 | ||
2144 | /* Print the message. */ | |
2a3c1174 PA |
2145 | string_file sfile; |
2146 | cli_ui_out (&sfile, 0).vmessage (ui_file_style (), format, args); | |
2147 | std::string linebuffer = std::move (sfile.string ()); | |
335709bc | 2148 | fputs_unfiltered (linebuffer.c_str (), stream); |
2a3c1174 | 2149 | |
335709bc SM |
2150 | size_t len = linebuffer.length (); |
2151 | needs_timestamp = (len > 0 && linebuffer[len - 1] == '\n'); | |
75feb17d | 2152 | } |
6e5abd65 | 2153 | else |
2a3c1174 | 2154 | vfprintf_maybe_filtered (stream, format, args, false, true); |
c906108c SS |
2155 | } |
2156 | ||
2157 | void | |
fba45db2 | 2158 | vprintf_filtered (const char *format, va_list args) |
c906108c | 2159 | { |
2a3c1174 | 2160 | vfprintf_maybe_filtered (gdb_stdout, format, args, true, false); |
c906108c SS |
2161 | } |
2162 | ||
2163 | void | |
fba45db2 | 2164 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2165 | { |
2166 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2167 | } | |
2168 | ||
c906108c | 2169 | void |
8731e58e | 2170 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2171 | { |
2172 | va_list args; | |
e0627e85 | 2173 | |
c906108c | 2174 | va_start (args, format); |
c906108c SS |
2175 | vfprintf_filtered (stream, format, args); |
2176 | va_end (args); | |
2177 | } | |
2178 | ||
c906108c | 2179 | void |
8731e58e | 2180 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2181 | { |
2182 | va_list args; | |
e0627e85 | 2183 | |
c906108c | 2184 | va_start (args, format); |
c906108c SS |
2185 | vfprintf_unfiltered (stream, format, args); |
2186 | va_end (args); | |
2187 | } | |
2188 | ||
cbe56571 TT |
2189 | /* See utils.h. */ |
2190 | ||
2191 | void | |
2192 | fprintf_styled (struct ui_file *stream, const ui_file_style &style, | |
2193 | const char *format, ...) | |
2194 | { | |
2195 | va_list args; | |
2196 | ||
2197 | set_output_style (stream, style); | |
2198 | va_start (args, format); | |
2199 | vfprintf_filtered (stream, format, args); | |
2200 | va_end (args); | |
2201 | set_output_style (stream, ui_file_style ()); | |
2202 | } | |
2203 | ||
2a3c1174 PA |
2204 | /* See utils.h. */ |
2205 | ||
2206 | void | |
2207 | vfprintf_styled (struct ui_file *stream, const ui_file_style &style, | |
2208 | const char *format, va_list args) | |
2209 | { | |
2210 | set_output_style (stream, style); | |
2211 | vfprintf_filtered (stream, format, args); | |
2212 | set_output_style (stream, ui_file_style ()); | |
2213 | } | |
2214 | ||
2215 | /* See utils.h. */ | |
2216 | ||
2217 | void | |
2218 | vfprintf_styled_no_gdbfmt (struct ui_file *stream, const ui_file_style &style, | |
2219 | bool filter, const char *format, va_list args) | |
2220 | { | |
2221 | std::string str = string_vprintf (format, args); | |
2222 | if (!str.empty ()) | |
2223 | { | |
e7b43072 | 2224 | set_output_style (stream, style); |
2a3c1174 | 2225 | fputs_maybe_filtered (str.c_str (), stream, filter); |
e7b43072 | 2226 | set_output_style (stream, ui_file_style ()); |
2a3c1174 PA |
2227 | } |
2228 | } | |
c906108c | 2229 | |
c906108c | 2230 | void |
8731e58e | 2231 | printf_filtered (const char *format, ...) |
c906108c SS |
2232 | { |
2233 | va_list args; | |
e0627e85 | 2234 | |
c906108c | 2235 | va_start (args, format); |
c906108c SS |
2236 | vfprintf_filtered (gdb_stdout, format, args); |
2237 | va_end (args); | |
2238 | } | |
2239 | ||
2240 | ||
c906108c | 2241 | void |
8731e58e | 2242 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2243 | { |
2244 | va_list args; | |
e0627e85 | 2245 | |
c906108c | 2246 | va_start (args, format); |
c906108c SS |
2247 | vfprintf_unfiltered (gdb_stdout, format, args); |
2248 | va_end (args); | |
2249 | } | |
2250 | ||
c906108c SS |
2251 | /* Easy -- but watch out! |
2252 | ||
2253 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2254 | This one doesn't, and had better not! */ | |
2255 | ||
2256 | void | |
fba45db2 | 2257 | puts_filtered (const char *string) |
c906108c SS |
2258 | { |
2259 | fputs_filtered (string, gdb_stdout); | |
2260 | } | |
2261 | ||
2262 | void | |
fba45db2 | 2263 | puts_unfiltered (const char *string) |
c906108c SS |
2264 | { |
2265 | fputs_unfiltered (string, gdb_stdout); | |
2266 | } | |
2267 | ||
2268 | /* Return a pointer to N spaces and a null. The pointer is good | |
2269 | until the next call to here. */ | |
2270 | char * | |
fba45db2 | 2271 | n_spaces (int n) |
c906108c | 2272 | { |
392a587b JM |
2273 | char *t; |
2274 | static char *spaces = 0; | |
2275 | static int max_spaces = -1; | |
c906108c SS |
2276 | |
2277 | if (n > max_spaces) | |
2278 | { | |
84d53fa9 | 2279 | xfree (spaces); |
c5aa993b JM |
2280 | spaces = (char *) xmalloc (n + 1); |
2281 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2282 | *--t = ' '; |
2283 | spaces[n] = '\0'; | |
2284 | max_spaces = n; | |
2285 | } | |
2286 | ||
2287 | return spaces + max_spaces - n; | |
2288 | } | |
2289 | ||
2290 | /* Print N spaces. */ | |
2291 | void | |
fba45db2 | 2292 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2293 | { |
2294 | fputs_filtered (n_spaces (n), stream); | |
2295 | } | |
2296 | \f | |
4a351cef | 2297 | /* C++/ObjC demangler stuff. */ |
c906108c | 2298 | |
389e51db AC |
2299 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2300 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2301 | If the name is not mangled, or the language for the name is unknown, or | |
581e13c1 | 2302 | demangling is off, the name is printed in its "raw" form. */ |
c906108c SS |
2303 | |
2304 | void | |
0d5cff50 | 2305 | fprintf_symbol_filtered (struct ui_file *stream, const char *name, |
8731e58e | 2306 | enum language lang, int arg_mode) |
c906108c SS |
2307 | { |
2308 | char *demangled; | |
2309 | ||
2310 | if (name != NULL) | |
2311 | { | |
2312 | /* If user wants to see raw output, no problem. */ | |
2313 | if (!demangle) | |
2314 | { | |
2315 | fputs_filtered (name, stream); | |
2316 | } | |
2317 | else | |
2318 | { | |
9a3d7dfd | 2319 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2320 | fputs_filtered (demangled ? demangled : name, stream); |
2321 | if (demangled != NULL) | |
2322 | { | |
b8c9b27d | 2323 | xfree (demangled); |
c906108c SS |
2324 | } |
2325 | } | |
2326 | } | |
2327 | } | |
2328 | ||
0662b6a7 PA |
2329 | /* True if CH is a character that can be part of a symbol name. I.e., |
2330 | either a number, a letter, or a '_'. */ | |
2331 | ||
2332 | static bool | |
2333 | valid_identifier_name_char (int ch) | |
2334 | { | |
51e2cfa2 | 2335 | return (ISALNUM (ch) || ch == '_'); |
0662b6a7 PA |
2336 | } |
2337 | ||
2338 | /* Skip to end of token, or to END, whatever comes first. Input is | |
2339 | assumed to be a C++ operator name. */ | |
2340 | ||
2341 | static const char * | |
2342 | cp_skip_operator_token (const char *token, const char *end) | |
2343 | { | |
2344 | const char *p = token; | |
51e2cfa2 | 2345 | while (p != end && !ISSPACE (*p) && *p != '(') |
0662b6a7 PA |
2346 | { |
2347 | if (valid_identifier_name_char (*p)) | |
2348 | { | |
2349 | while (p != end && valid_identifier_name_char (*p)) | |
2350 | p++; | |
2351 | return p; | |
2352 | } | |
2353 | else | |
2354 | { | |
2355 | /* Note, ordered such that among ops that share a prefix, | |
2356 | longer comes first. This is so that the loop below can | |
2357 | bail on first match. */ | |
2358 | static const char *ops[] = | |
2359 | { | |
2360 | "[", | |
2361 | "]", | |
2362 | "~", | |
2363 | ",", | |
2364 | "-=", "--", "->", "-", | |
2365 | "+=", "++", "+", | |
2366 | "*=", "*", | |
2367 | "/=", "/", | |
2368 | "%=", "%", | |
2369 | "|=", "||", "|", | |
2370 | "&=", "&&", "&", | |
2371 | "^=", "^", | |
2372 | "!=", "!", | |
2373 | "<<=", "<=", "<<", "<", | |
2374 | ">>=", ">=", ">>", ">", | |
2375 | "==", "=", | |
2376 | }; | |
2377 | ||
2378 | for (const char *op : ops) | |
2379 | { | |
2380 | size_t oplen = strlen (op); | |
2381 | size_t lencmp = std::min<size_t> (oplen, end - p); | |
2382 | ||
2383 | if (strncmp (p, op, lencmp) == 0) | |
2384 | return p + lencmp; | |
2385 | } | |
2386 | /* Some unidentified character. Return it. */ | |
2387 | return p + 1; | |
2388 | } | |
2389 | } | |
2390 | ||
2391 | return p; | |
2392 | } | |
2393 | ||
2394 | /* Advance STRING1/STRING2 past whitespace. */ | |
2395 | ||
2396 | static void | |
2397 | skip_ws (const char *&string1, const char *&string2, const char *end_str2) | |
2398 | { | |
51e2cfa2 | 2399 | while (ISSPACE (*string1)) |
0662b6a7 | 2400 | string1++; |
51e2cfa2 | 2401 | while (string2 < end_str2 && ISSPACE (*string2)) |
0662b6a7 PA |
2402 | string2++; |
2403 | } | |
2404 | ||
2405 | /* True if STRING points at the start of a C++ operator name. START | |
2406 | is the start of the string that STRING points to, hence when | |
2407 | reading backwards, we must not read any character before START. */ | |
2408 | ||
2409 | static bool | |
2410 | cp_is_operator (const char *string, const char *start) | |
2411 | { | |
2412 | return ((string == start | |
2413 | || !valid_identifier_name_char (string[-1])) | |
2414 | && strncmp (string, CP_OPERATOR_STR, CP_OPERATOR_LEN) == 0 | |
2415 | && !valid_identifier_name_char (string[CP_OPERATOR_LEN])); | |
2416 | } | |
2417 | ||
bd69330d PA |
2418 | /* If *NAME points at an ABI tag, skip it and return true. Otherwise |
2419 | leave *NAME unmodified and return false. (see GCC's abi_tag | |
2420 | attribute), such names are demangled as e.g., | |
2421 | "function[abi:cxx11]()". */ | |
2422 | ||
2423 | static bool | |
2424 | skip_abi_tag (const char **name) | |
2425 | { | |
2426 | const char *p = *name; | |
2427 | ||
2428 | if (startswith (p, "[abi:")) | |
2429 | { | |
2430 | p += 5; | |
2431 | ||
2432 | while (valid_identifier_name_char (*p)) | |
2433 | p++; | |
2434 | ||
2435 | if (*p == ']') | |
2436 | { | |
2437 | p++; | |
2438 | *name = p; | |
2439 | return true; | |
2440 | } | |
2441 | } | |
2442 | return false; | |
2443 | } | |
2444 | ||
b5ec771e | 2445 | /* See utils.h. */ |
1d550c82 | 2446 | |
b5ec771e | 2447 | int |
1d550c82 | 2448 | strncmp_iw_with_mode (const char *string1, const char *string2, |
0662b6a7 | 2449 | size_t string2_len, strncmp_iw_mode mode, |
bd69330d PA |
2450 | enum language language, |
2451 | completion_match_for_lcd *match_for_lcd) | |
c906108c | 2452 | { |
0662b6a7 | 2453 | const char *string1_start = string1; |
1d550c82 | 2454 | const char *end_str2 = string2 + string2_len; |
0662b6a7 PA |
2455 | bool skip_spaces = true; |
2456 | bool have_colon_op = (language == language_cplus | |
2457 | || language == language_rust | |
2458 | || language == language_fortran); | |
1d550c82 PA |
2459 | |
2460 | while (1) | |
c906108c | 2461 | { |
0662b6a7 | 2462 | if (skip_spaces |
51e2cfa2 PA |
2463 | || ((ISSPACE (*string1) && !valid_identifier_name_char (*string2)) |
2464 | || (ISSPACE (*string2) && !valid_identifier_name_char (*string1)))) | |
0662b6a7 PA |
2465 | { |
2466 | skip_ws (string1, string2, end_str2); | |
2467 | skip_spaces = false; | |
2468 | } | |
2469 | ||
bd69330d PA |
2470 | /* Skip [abi:cxx11] tags in the symbol name if the lookup name |
2471 | doesn't include them. E.g.: | |
2472 | ||
2473 | string1: function[abi:cxx1](int) | |
2474 | string2: function | |
2475 | ||
2476 | string1: function[abi:cxx1](int) | |
2477 | string2: function(int) | |
2478 | ||
2479 | string1: Struct[abi:cxx1]::function() | |
2480 | string2: Struct::function() | |
2481 | ||
2482 | string1: function(Struct[abi:cxx1], int) | |
2483 | string2: function(Struct, int) | |
2484 | */ | |
2485 | if (string2 == end_str2 | |
2486 | || (*string2 != '[' && !valid_identifier_name_char (*string2))) | |
2487 | { | |
2488 | const char *abi_start = string1; | |
2489 | ||
2490 | /* There can be more than one tag. */ | |
2491 | while (*string1 == '[' && skip_abi_tag (&string1)) | |
2492 | ; | |
2493 | ||
2494 | if (match_for_lcd != NULL && abi_start != string1) | |
2495 | match_for_lcd->mark_ignored_range (abi_start, string1); | |
2496 | ||
51e2cfa2 | 2497 | while (ISSPACE (*string1)) |
bd69330d PA |
2498 | string1++; |
2499 | } | |
2500 | ||
1d550c82 PA |
2501 | if (*string1 == '\0' || string2 == end_str2) |
2502 | break; | |
0662b6a7 PA |
2503 | |
2504 | /* Handle the :: operator. */ | |
2505 | if (have_colon_op && string1[0] == ':' && string1[1] == ':') | |
2506 | { | |
2507 | if (*string2 != ':') | |
2508 | return 1; | |
2509 | ||
2510 | string1++; | |
2511 | string2++; | |
2512 | ||
2513 | if (string2 == end_str2) | |
2514 | break; | |
2515 | ||
2516 | if (*string2 != ':') | |
2517 | return 1; | |
2518 | ||
2519 | string1++; | |
2520 | string2++; | |
2521 | ||
51e2cfa2 | 2522 | while (ISSPACE (*string1)) |
0662b6a7 | 2523 | string1++; |
51e2cfa2 | 2524 | while (string2 < end_str2 && ISSPACE (*string2)) |
0662b6a7 PA |
2525 | string2++; |
2526 | continue; | |
2527 | } | |
2528 | ||
2529 | /* Handle C++ user-defined operators. */ | |
2530 | else if (language == language_cplus | |
2531 | && *string1 == 'o') | |
2532 | { | |
2533 | if (cp_is_operator (string1, string1_start)) | |
2534 | { | |
2535 | /* An operator name in STRING1. Check STRING2. */ | |
2536 | size_t cmplen | |
2537 | = std::min<size_t> (CP_OPERATOR_LEN, end_str2 - string2); | |
2538 | if (strncmp (string1, string2, cmplen) != 0) | |
2539 | return 1; | |
2540 | ||
2541 | string1 += cmplen; | |
2542 | string2 += cmplen; | |
2543 | ||
2544 | if (string2 != end_str2) | |
2545 | { | |
2546 | /* Check for "operatorX" in STRING2. */ | |
2547 | if (valid_identifier_name_char (*string2)) | |
2548 | return 1; | |
2549 | ||
2550 | skip_ws (string1, string2, end_str2); | |
2551 | } | |
2552 | ||
2553 | /* Handle operator(). */ | |
2554 | if (*string1 == '(') | |
2555 | { | |
2556 | if (string2 == end_str2) | |
2557 | { | |
2558 | if (mode == strncmp_iw_mode::NORMAL) | |
2559 | return 0; | |
2560 | else | |
2561 | { | |
2562 | /* Don't break for the regular return at the | |
2563 | bottom, because "operator" should not | |
2564 | match "operator()", since this open | |
2565 | parentheses is not the parameter list | |
2566 | start. */ | |
2567 | return *string1 != '\0'; | |
2568 | } | |
2569 | } | |
2570 | ||
2571 | if (*string1 != *string2) | |
2572 | return 1; | |
2573 | ||
2574 | string1++; | |
2575 | string2++; | |
2576 | } | |
2577 | ||
2578 | while (1) | |
2579 | { | |
2580 | skip_ws (string1, string2, end_str2); | |
2581 | ||
2582 | /* Skip to end of token, or to END, whatever comes | |
2583 | first. */ | |
2584 | const char *end_str1 = string1 + strlen (string1); | |
2585 | const char *p1 = cp_skip_operator_token (string1, end_str1); | |
2586 | const char *p2 = cp_skip_operator_token (string2, end_str2); | |
2587 | ||
2588 | cmplen = std::min (p1 - string1, p2 - string2); | |
2589 | if (p2 == end_str2) | |
2590 | { | |
2591 | if (strncmp (string1, string2, cmplen) != 0) | |
2592 | return 1; | |
2593 | } | |
2594 | else | |
2595 | { | |
2596 | if (p1 - string1 != p2 - string2) | |
2597 | return 1; | |
2598 | if (strncmp (string1, string2, cmplen) != 0) | |
2599 | return 1; | |
2600 | } | |
2601 | ||
2602 | string1 += cmplen; | |
2603 | string2 += cmplen; | |
2604 | ||
2605 | if (*string1 == '\0' || string2 == end_str2) | |
2606 | break; | |
2607 | if (*string1 == '(' || *string2 == '(') | |
2608 | break; | |
2609 | } | |
2610 | ||
2611 | continue; | |
2612 | } | |
2613 | } | |
2614 | ||
559a7a62 JK |
2615 | if (case_sensitivity == case_sensitive_on && *string1 != *string2) |
2616 | break; | |
2617 | if (case_sensitivity == case_sensitive_off | |
51e2cfa2 PA |
2618 | && (TOLOWER ((unsigned char) *string1) |
2619 | != TOLOWER ((unsigned char) *string2))) | |
559a7a62 | 2620 | break; |
1d550c82 | 2621 | |
0662b6a7 PA |
2622 | /* If we see any non-whitespace, non-identifier-name character |
2623 | (any of "()<>*&" etc.), then skip spaces the next time | |
2624 | around. */ | |
51e2cfa2 | 2625 | if (!ISSPACE (*string1) && !valid_identifier_name_char (*string1)) |
0662b6a7 PA |
2626 | skip_spaces = true; |
2627 | ||
1d550c82 PA |
2628 | string1++; |
2629 | string2++; | |
c906108c | 2630 | } |
1d550c82 PA |
2631 | |
2632 | if (string2 == end_str2) | |
2633 | { | |
2634 | if (mode == strncmp_iw_mode::NORMAL) | |
bd69330d PA |
2635 | { |
2636 | /* Strip abi tag markers from the matched symbol name. | |
2637 | Usually the ABI marker will be found on function name | |
2638 | (automatically added because the function returns an | |
2639 | object marked with an ABI tag). However, it's also | |
2640 | possible to see a marker in one of the function | |
2641 | parameters, for example. | |
2642 | ||
2643 | string2 (lookup name): | |
2644 | func | |
2645 | symbol name: | |
2646 | function(some_struct[abi:cxx11], int) | |
2647 | ||
2648 | and for completion LCD computation we want to say that | |
2649 | the match was for: | |
2650 | function(some_struct, int) | |
2651 | */ | |
2652 | if (match_for_lcd != NULL) | |
2653 | { | |
2654 | while ((string1 = strstr (string1, "[abi:")) != NULL) | |
2655 | { | |
2656 | const char *abi_start = string1; | |
2657 | ||
2658 | /* There can be more than one tag. */ | |
2659 | while (skip_abi_tag (&string1) && *string1 == '[') | |
2660 | ; | |
2661 | ||
2662 | if (abi_start != string1) | |
2663 | match_for_lcd->mark_ignored_range (abi_start, string1); | |
2664 | } | |
2665 | } | |
2666 | ||
2667 | return 0; | |
2668 | } | |
1d550c82 PA |
2669 | else |
2670 | return (*string1 != '\0' && *string1 != '('); | |
2671 | } | |
2672 | else | |
2673 | return 1; | |
2674 | } | |
2675 | ||
2676 | /* See utils.h. */ | |
2677 | ||
2678 | int | |
2679 | strncmp_iw (const char *string1, const char *string2, size_t string2_len) | |
2680 | { | |
2681 | return strncmp_iw_with_mode (string1, string2, string2_len, | |
0662b6a7 | 2682 | strncmp_iw_mode::NORMAL, language_minimal); |
1d550c82 PA |
2683 | } |
2684 | ||
2685 | /* See utils.h. */ | |
2686 | ||
2687 | int | |
2688 | strcmp_iw (const char *string1, const char *string2) | |
2689 | { | |
2690 | return strncmp_iw_with_mode (string1, string2, strlen (string2), | |
0662b6a7 | 2691 | strncmp_iw_mode::MATCH_PARAMS, language_minimal); |
c906108c | 2692 | } |
2de7ced7 | 2693 | |
0fe19209 DC |
2694 | /* This is like strcmp except that it ignores whitespace and treats |
2695 | '(' as the first non-NULL character in terms of ordering. Like | |
2696 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2697 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2698 | according to that ordering. | |
2699 | ||
2700 | If a list is sorted according to this function and if you want to | |
2701 | find names in the list that match some fixed NAME according to | |
2702 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2703 | where this function would put NAME. | |
2704 | ||
559a7a62 JK |
2705 | This function must be neutral to the CASE_SENSITIVITY setting as the user |
2706 | may choose it during later lookup. Therefore this function always sorts | |
2707 | primarily case-insensitively and secondarily case-sensitively. | |
2708 | ||
0fe19209 DC |
2709 | Here are some examples of why using strcmp to sort is a bad idea: |
2710 | ||
2711 | Whitespace example: | |
2712 | ||
2713 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2714 | we try to do a search for "foo<char*>", strcmp will locate this | |
2715 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2716 | will start looking at strings beginning with "goo", and will never | |
2717 | see the correct match of "foo<char *>". | |
2718 | ||
2719 | Parenthesis example: | |
2720 | ||
2721 | In practice, this is less like to be an issue, but I'll give it a | |
2722 | shot. Let's assume that '$' is a legitimate character to occur in | |
2723 | symbols. (Which may well even be the case on some systems.) Then | |
2724 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2725 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2726 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2727 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2728 | "foo") is false, so it won't proceed to the actual match of | |
2729 | "foo(int)" with "foo". */ | |
2730 | ||
2731 | int | |
2732 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2733 | { | |
559a7a62 JK |
2734 | const char *saved_string1 = string1, *saved_string2 = string2; |
2735 | enum case_sensitivity case_pass = case_sensitive_off; | |
2736 | ||
2737 | for (;;) | |
0fe19209 | 2738 | { |
b11b1f88 JK |
2739 | /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'. |
2740 | Provide stub characters if we are already at the end of one of the | |
2741 | strings. */ | |
2742 | char c1 = 'X', c2 = 'X'; | |
2743 | ||
2744 | while (*string1 != '\0' && *string2 != '\0') | |
0fe19209 | 2745 | { |
51e2cfa2 | 2746 | while (ISSPACE (*string1)) |
b11b1f88 | 2747 | string1++; |
51e2cfa2 | 2748 | while (ISSPACE (*string2)) |
b11b1f88 JK |
2749 | string2++; |
2750 | ||
559a7a62 JK |
2751 | switch (case_pass) |
2752 | { | |
2753 | case case_sensitive_off: | |
51e2cfa2 PA |
2754 | c1 = TOLOWER ((unsigned char) *string1); |
2755 | c2 = TOLOWER ((unsigned char) *string2); | |
559a7a62 JK |
2756 | break; |
2757 | case case_sensitive_on: | |
b11b1f88 JK |
2758 | c1 = *string1; |
2759 | c2 = *string2; | |
559a7a62 JK |
2760 | break; |
2761 | } | |
b11b1f88 JK |
2762 | if (c1 != c2) |
2763 | break; | |
2764 | ||
2765 | if (*string1 != '\0') | |
2766 | { | |
2767 | string1++; | |
2768 | string2++; | |
2769 | } | |
0fe19209 | 2770 | } |
b11b1f88 JK |
2771 | |
2772 | switch (*string1) | |
0fe19209 | 2773 | { |
b11b1f88 JK |
2774 | /* Characters are non-equal unless they're both '\0'; we want to |
2775 | make sure we get the comparison right according to our | |
2776 | comparison in the cases where one of them is '\0' or '('. */ | |
2777 | case '\0': | |
2778 | if (*string2 == '\0') | |
559a7a62 | 2779 | break; |
b11b1f88 JK |
2780 | else |
2781 | return -1; | |
2782 | case '(': | |
2783 | if (*string2 == '\0') | |
2784 | return 1; | |
2785 | else | |
2786 | return -1; | |
2787 | default: | |
2788 | if (*string2 == '\0' || *string2 == '(') | |
2789 | return 1; | |
559a7a62 JK |
2790 | else if (c1 > c2) |
2791 | return 1; | |
2792 | else if (c1 < c2) | |
2793 | return -1; | |
2794 | /* PASSTHRU */ | |
0fe19209 | 2795 | } |
559a7a62 JK |
2796 | |
2797 | if (case_pass == case_sensitive_on) | |
2798 | return 0; | |
2799 | ||
2800 | /* Otherwise the strings were equal in case insensitive way, make | |
2801 | a more fine grained comparison in a case sensitive way. */ | |
2802 | ||
2803 | case_pass = case_sensitive_on; | |
2804 | string1 = saved_string1; | |
2805 | string2 = saved_string2; | |
0fe19209 | 2806 | } |
0fe19209 DC |
2807 | } |
2808 | ||
459a2e4c | 2809 | /* See utils.h. */ |
2de7ced7 | 2810 | |
459a2e4c | 2811 | bool |
2de7ced7 DJ |
2812 | streq (const char *lhs, const char *rhs) |
2813 | { | |
2814 | return !strcmp (lhs, rhs); | |
2815 | } | |
459a2e4c | 2816 | |
c906108c | 2817 | \f |
c5aa993b | 2818 | |
c906108c | 2819 | /* |
c5aa993b JM |
2820 | ** subset_compare() |
2821 | ** Answer whether string_to_compare is a full or partial match to | |
2822 | ** template_string. The partial match must be in sequence starting | |
2823 | ** at index 0. | |
2824 | */ | |
c906108c | 2825 | int |
a121b7c1 | 2826 | subset_compare (const char *string_to_compare, const char *template_string) |
7a292a7a SS |
2827 | { |
2828 | int match; | |
e0627e85 | 2829 | |
cafb3438 | 2830 | if (template_string != NULL && string_to_compare != NULL |
8731e58e AC |
2831 | && strlen (string_to_compare) <= strlen (template_string)) |
2832 | match = | |
61012eef | 2833 | (startswith (template_string, string_to_compare)); |
7a292a7a SS |
2834 | else |
2835 | match = 0; | |
2836 | return match; | |
2837 | } | |
c906108c | 2838 | |
75feb17d DJ |
2839 | static void |
2840 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
2841 | struct cmd_list_element *c, const char *value) | |
2842 | { | |
3e43a32a MS |
2843 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), |
2844 | value); | |
75feb17d | 2845 | } |
c906108c | 2846 | \f |
c5aa993b | 2847 | |
a738ea1d YQ |
2848 | /* See utils.h. */ |
2849 | ||
2850 | CORE_ADDR | |
2851 | address_significant (gdbarch *gdbarch, CORE_ADDR addr) | |
2852 | { | |
8727de56 OJ |
2853 | /* Clear insignificant bits of a target address and sign extend resulting |
2854 | address, avoiding shifts larger or equal than the width of a CORE_ADDR. | |
2855 | The local variable ADDR_BIT stops the compiler reporting a shift overflow | |
5969f0db OJ |
2856 | when it won't occur. Skip updating of target address if current target |
2857 | has not set gdbarch significant_addr_bit. */ | |
a738ea1d YQ |
2858 | int addr_bit = gdbarch_significant_addr_bit (gdbarch); |
2859 | ||
5969f0db | 2860 | if (addr_bit && (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))) |
8727de56 OJ |
2861 | { |
2862 | CORE_ADDR sign = (CORE_ADDR) 1 << (addr_bit - 1); | |
2863 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2864 | addr = (addr ^ sign) - sign; | |
2865 | } | |
a738ea1d YQ |
2866 | |
2867 | return addr; | |
2868 | } | |
2869 | ||
66bf4b3a | 2870 | const char * |
5af949e3 | 2871 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
2872 | { |
2873 | /* Truncate address to the size of a target address, avoiding shifts | |
2874 | larger or equal than the width of a CORE_ADDR. The local | |
2875 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
581e13c1 | 2876 | when it won't occur. */ |
66bf4b3a AC |
2877 | /* NOTE: This assumes that the significant address information is |
2878 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2879 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2880 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2881 | ||
5af949e3 | 2882 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
2883 | |
2884 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2885 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2886 | return hex_string (addr); | |
2887 | } | |
2888 | ||
f1310107 TJB |
2889 | /* This function is described in "defs.h". */ |
2890 | ||
2891 | const char * | |
2892 | print_core_address (struct gdbarch *gdbarch, CORE_ADDR address) | |
2893 | { | |
2894 | int addr_bit = gdbarch_addr_bit (gdbarch); | |
2895 | ||
2896 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2897 | address &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2898 | ||
2899 | /* FIXME: cagney/2002-05-03: Need local_address_string() function | |
2900 | that returns the language localized string formatted to a width | |
2901 | based on gdbarch_addr_bit. */ | |
2902 | if (addr_bit <= 32) | |
2903 | return hex_string_custom (address, 8); | |
2904 | else | |
2905 | return hex_string_custom (address, 16); | |
2906 | } | |
2907 | ||
8e3b41a9 JK |
2908 | /* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */ |
2909 | ||
2910 | hashval_t | |
2911 | core_addr_hash (const void *ap) | |
2912 | { | |
19ba03f4 | 2913 | const CORE_ADDR *addrp = (const CORE_ADDR *) ap; |
8e3b41a9 JK |
2914 | |
2915 | return *addrp; | |
2916 | } | |
2917 | ||
2918 | /* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */ | |
2919 | ||
2920 | int | |
2921 | core_addr_eq (const void *ap, const void *bp) | |
2922 | { | |
19ba03f4 SM |
2923 | const CORE_ADDR *addr_ap = (const CORE_ADDR *) ap; |
2924 | const CORE_ADDR *addr_bp = (const CORE_ADDR *) bp; | |
8e3b41a9 JK |
2925 | |
2926 | return *addr_ap == *addr_bp; | |
2927 | } | |
2928 | ||
03dd37c3 AC |
2929 | /* Convert a string back into a CORE_ADDR. */ |
2930 | CORE_ADDR | |
2931 | string_to_core_addr (const char *my_string) | |
2932 | { | |
2933 | CORE_ADDR addr = 0; | |
9544c605 | 2934 | |
51e2cfa2 | 2935 | if (my_string[0] == '0' && TOLOWER (my_string[1]) == 'x') |
03dd37c3 | 2936 | { |
ced572fe | 2937 | /* Assume that it is in hex. */ |
03dd37c3 | 2938 | int i; |
5d502164 | 2939 | |
03dd37c3 AC |
2940 | for (i = 2; my_string[i] != '\0'; i++) |
2941 | { | |
51e2cfa2 | 2942 | if (ISDIGIT (my_string[i])) |
03dd37c3 | 2943 | addr = (my_string[i] - '0') + (addr * 16); |
51e2cfa2 PA |
2944 | else if (ISXDIGIT (my_string[i])) |
2945 | addr = (TOLOWER (my_string[i]) - 'a' + 0xa) + (addr * 16); | |
03dd37c3 | 2946 | else |
63f06803 | 2947 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
2948 | } |
2949 | } | |
2950 | else | |
2951 | { | |
2952 | /* Assume that it is in decimal. */ | |
2953 | int i; | |
5d502164 | 2954 | |
03dd37c3 AC |
2955 | for (i = 0; my_string[i] != '\0'; i++) |
2956 | { | |
51e2cfa2 | 2957 | if (ISDIGIT (my_string[i])) |
03dd37c3 AC |
2958 | addr = (my_string[i] - '0') + (addr * 10); |
2959 | else | |
63f06803 | 2960 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
2961 | } |
2962 | } | |
9544c605 | 2963 | |
03dd37c3 AC |
2964 | return addr; |
2965 | } | |
58d370e0 | 2966 | |
14278e1f TT |
2967 | #if GDB_SELF_TEST |
2968 | ||
2969 | static void | |
2970 | gdb_realpath_check_trailer (const char *input, const char *trailer) | |
2971 | { | |
2972 | gdb::unique_xmalloc_ptr<char> result = gdb_realpath (input); | |
2973 | ||
2974 | size_t len = strlen (result.get ()); | |
2975 | size_t trail_len = strlen (trailer); | |
2976 | ||
2977 | SELF_CHECK (len >= trail_len | |
2978 | && strcmp (result.get () + len - trail_len, trailer) == 0); | |
2979 | } | |
2980 | ||
2981 | static void | |
2982 | gdb_realpath_tests () | |
2983 | { | |
2984 | /* A file which contains a directory prefix. */ | |
2985 | gdb_realpath_check_trailer ("./xfullpath.exp", "/xfullpath.exp"); | |
2986 | /* A file which contains a directory prefix. */ | |
2987 | gdb_realpath_check_trailer ("../../defs.h", "/defs.h"); | |
2988 | /* A one-character filename. */ | |
2989 | gdb_realpath_check_trailer ("./a", "/a"); | |
2990 | /* A file in the root directory. */ | |
2991 | gdb_realpath_check_trailer ("/root_file_which_should_exist", | |
2992 | "/root_file_which_should_exist"); | |
2993 | /* A file which does not have a directory prefix. */ | |
2994 | gdb_realpath_check_trailer ("xfullpath.exp", "xfullpath.exp"); | |
2995 | /* A one-char filename without any directory prefix. */ | |
2996 | gdb_realpath_check_trailer ("a", "a"); | |
2997 | /* An empty filename. */ | |
2998 | gdb_realpath_check_trailer ("", ""); | |
2999 | } | |
3000 | ||
d369b608 SM |
3001 | /* Test the gdb_argv::as_array_view method. */ |
3002 | ||
3003 | static void | |
3004 | gdb_argv_as_array_view_test () | |
3005 | { | |
3006 | { | |
3007 | gdb_argv argv; | |
3008 | ||
3009 | gdb::array_view<char *> view = argv.as_array_view (); | |
3010 | ||
3011 | SELF_CHECK (view.data () == nullptr); | |
3012 | SELF_CHECK (view.size () == 0); | |
3013 | } | |
3014 | { | |
3015 | gdb_argv argv ("une bonne 50"); | |
3016 | ||
3017 | gdb::array_view<char *> view = argv.as_array_view (); | |
3018 | ||
3019 | SELF_CHECK (view.size () == 3); | |
3020 | SELF_CHECK (strcmp (view[0], "une") == 0); | |
3021 | SELF_CHECK (strcmp (view[1], "bonne") == 0); | |
3022 | SELF_CHECK (strcmp (view[2], "50") == 0); | |
3023 | } | |
3024 | } | |
3025 | ||
14278e1f TT |
3026 | #endif /* GDB_SELF_TEST */ |
3027 | ||
ae5a43e0 DJ |
3028 | /* Allocation function for the libiberty hash table which uses an |
3029 | obstack. The obstack is passed as DATA. */ | |
3030 | ||
3031 | void * | |
3032 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
3033 | { | |
241fd515 | 3034 | size_t total = size * count; |
ae5a43e0 | 3035 | void *ptr = obstack_alloc ((struct obstack *) data, total); |
e0627e85 | 3036 | |
ae5a43e0 DJ |
3037 | memset (ptr, 0, total); |
3038 | return ptr; | |
3039 | } | |
3040 | ||
3041 | /* Trivial deallocation function for the libiberty splay tree and hash | |
3042 | table - don't deallocate anything. Rely on later deletion of the | |
3043 | obstack. DATA will be the obstack, although it is not needed | |
3044 | here. */ | |
3045 | ||
3046 | void | |
3047 | dummy_obstack_deallocate (void *object, void *data) | |
3048 | { | |
3049 | return; | |
3050 | } | |
253c8abb | 3051 | |
e1024ff1 DJ |
3052 | /* Simple, portable version of dirname that does not modify its |
3053 | argument. */ | |
3054 | ||
d721ba37 | 3055 | std::string |
e1024ff1 DJ |
3056 | ldirname (const char *filename) |
3057 | { | |
d721ba37 | 3058 | std::string dirname; |
e1024ff1 | 3059 | const char *base = lbasename (filename); |
e1024ff1 DJ |
3060 | |
3061 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
3062 | --base; | |
3063 | ||
3064 | if (base == filename) | |
d721ba37 | 3065 | return dirname; |
e1024ff1 | 3066 | |
d721ba37 | 3067 | dirname = std::string (filename, base - filename); |
e1024ff1 DJ |
3068 | |
3069 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
3070 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
3071 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
3072 | && !IS_DIR_SEPARATOR (filename[0])) | |
3073 | dirname[base++ - filename] = '.'; | |
3074 | ||
e1024ff1 DJ |
3075 | return dirname; |
3076 | } | |
d1a41061 | 3077 | |
773a1edc TT |
3078 | /* See utils.h. */ |
3079 | ||
3080 | void | |
3081 | gdb_argv::reset (const char *s) | |
3082 | { | |
3083 | char **argv = buildargv (s); | |
3084 | ||
773a1edc TT |
3085 | freeargv (m_argv); |
3086 | m_argv = argv; | |
3087 | } | |
3088 | ||
d18b8b7a | 3089 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3e43a32a MS |
3090 | #define AMBIGUOUS_MESS2 \ |
3091 | ".\nUse \"set gnutarget format-name\" to specify the format." | |
d18b8b7a | 3092 | |
803c08d0 | 3093 | std::string |
d18b8b7a HZ |
3094 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) |
3095 | { | |
d18b8b7a HZ |
3096 | char **p; |
3097 | ||
3098 | /* Check if errmsg just need simple return. */ | |
3099 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
3100 | return bfd_errmsg (error_tag); | |
3101 | ||
803c08d0 TT |
3102 | std::string ret (bfd_errmsg (error_tag)); |
3103 | ret += AMBIGUOUS_MESS1; | |
d18b8b7a HZ |
3104 | |
3105 | for (p = matching; *p; p++) | |
3106 | { | |
803c08d0 TT |
3107 | ret += " "; |
3108 | ret += *p; | |
d18b8b7a | 3109 | } |
803c08d0 | 3110 | ret += AMBIGUOUS_MESS2; |
d18b8b7a | 3111 | |
803c08d0 | 3112 | xfree (matching); |
d18b8b7a HZ |
3113 | |
3114 | return ret; | |
3115 | } | |
3116 | ||
74164c56 JK |
3117 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
3118 | ||
3119 | int | |
c0939df1 | 3120 | parse_pid_to_attach (const char *args) |
74164c56 JK |
3121 | { |
3122 | unsigned long pid; | |
3123 | char *dummy; | |
3124 | ||
3125 | if (!args) | |
3126 | error_no_arg (_("process-id to attach")); | |
3127 | ||
c0939df1 | 3128 | dummy = (char *) args; |
74164c56 JK |
3129 | pid = strtoul (args, &dummy, 0); |
3130 | /* Some targets don't set errno on errors, grrr! */ | |
3131 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
3132 | error (_("Illegal process-id: %s."), args); | |
3133 | ||
3134 | return pid; | |
3135 | } | |
3136 | ||
30baf67b | 3137 | /* Substitute all occurrences of string FROM by string TO in *STRINGP. *STRINGP |
6dea1fbd | 3138 | must come from xrealloc-compatible allocator and it may be updated. FROM |
1564a261 JK |
3139 | needs to be delimited by IS_DIR_SEPARATOR or DIRNAME_SEPARATOR (or be |
3140 | located at the start or end of *STRINGP. */ | |
6dea1fbd JK |
3141 | |
3142 | void | |
3143 | substitute_path_component (char **stringp, const char *from, const char *to) | |
3144 | { | |
3145 | char *string = *stringp, *s; | |
3146 | const size_t from_len = strlen (from); | |
3147 | const size_t to_len = strlen (to); | |
3148 | ||
3149 | for (s = string;;) | |
3150 | { | |
3151 | s = strstr (s, from); | |
3152 | if (s == NULL) | |
3153 | break; | |
3154 | ||
1564a261 JK |
3155 | if ((s == string || IS_DIR_SEPARATOR (s[-1]) |
3156 | || s[-1] == DIRNAME_SEPARATOR) | |
dda83cd7 | 3157 | && (s[from_len] == '\0' || IS_DIR_SEPARATOR (s[from_len]) |
1564a261 | 3158 | || s[from_len] == DIRNAME_SEPARATOR)) |
6dea1fbd JK |
3159 | { |
3160 | char *string_new; | |
3161 | ||
224c3ddb SM |
3162 | string_new |
3163 | = (char *) xrealloc (string, (strlen (string) + to_len + 1)); | |
6dea1fbd JK |
3164 | |
3165 | /* Relocate the current S pointer. */ | |
3166 | s = s - string + string_new; | |
3167 | string = string_new; | |
3168 | ||
3169 | /* Replace from by to. */ | |
3170 | memmove (&s[to_len], &s[from_len], strlen (&s[from_len]) + 1); | |
3171 | memcpy (s, to, to_len); | |
3172 | ||
3173 | s += to_len; | |
3174 | } | |
3175 | else | |
3176 | s++; | |
3177 | } | |
3178 | ||
3179 | *stringp = string; | |
3180 | } | |
3181 | ||
0b6cb71e DE |
3182 | #ifdef HAVE_WAITPID |
3183 | ||
3184 | #ifdef SIGALRM | |
3185 | ||
3186 | /* SIGALRM handler for waitpid_with_timeout. */ | |
3187 | ||
3188 | static void | |
3189 | sigalrm_handler (int signo) | |
3190 | { | |
3191 | /* Nothing to do. */ | |
3192 | } | |
3193 | ||
3194 | #endif | |
3195 | ||
3196 | /* Wrapper to wait for child PID to die with TIMEOUT. | |
3197 | TIMEOUT is the time to stop waiting in seconds. | |
3198 | If TIMEOUT is zero, pass WNOHANG to waitpid. | |
3199 | Returns PID if it was successfully waited for, otherwise -1. | |
3200 | ||
3201 | Timeouts are currently implemented with alarm and SIGALRM. | |
3202 | If the host does not support them, this waits "forever". | |
3203 | It would be odd though for a host to have waitpid and not SIGALRM. */ | |
3204 | ||
3205 | pid_t | |
3206 | wait_to_die_with_timeout (pid_t pid, int *status, int timeout) | |
3207 | { | |
3208 | pid_t waitpid_result; | |
3209 | ||
3210 | gdb_assert (pid > 0); | |
3211 | gdb_assert (timeout >= 0); | |
3212 | ||
3213 | if (timeout > 0) | |
3214 | { | |
3215 | #ifdef SIGALRM | |
3216 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3217 | struct sigaction sa, old_sa; | |
3218 | ||
3219 | sa.sa_handler = sigalrm_handler; | |
3220 | sigemptyset (&sa.sa_mask); | |
3221 | sa.sa_flags = 0; | |
3222 | sigaction (SIGALRM, &sa, &old_sa); | |
3223 | #else | |
a40805d4 | 3224 | sighandler_t ofunc; |
0b6cb71e | 3225 | |
a40805d4 | 3226 | ofunc = signal (SIGALRM, sigalrm_handler); |
0b6cb71e DE |
3227 | #endif |
3228 | ||
3229 | alarm (timeout); | |
3230 | #endif | |
3231 | ||
3232 | waitpid_result = waitpid (pid, status, 0); | |
3233 | ||
3234 | #ifdef SIGALRM | |
3235 | alarm (0); | |
3236 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3237 | sigaction (SIGALRM, &old_sa, NULL); | |
3238 | #else | |
3239 | signal (SIGALRM, ofunc); | |
3240 | #endif | |
3241 | #endif | |
3242 | } | |
3243 | else | |
3244 | waitpid_result = waitpid (pid, status, WNOHANG); | |
3245 | ||
3246 | if (waitpid_result == pid) | |
3247 | return pid; | |
3248 | else | |
3249 | return -1; | |
3250 | } | |
3251 | ||
3252 | #endif /* HAVE_WAITPID */ | |
3253 | ||
202cbf1c JK |
3254 | /* Provide fnmatch compatible function for FNM_FILE_NAME matching of host files. |
3255 | Both FNM_FILE_NAME and FNM_NOESCAPE must be set in FLAGS. | |
3256 | ||
3257 | It handles correctly HAVE_DOS_BASED_FILE_SYSTEM and | |
3258 | HAVE_CASE_INSENSITIVE_FILE_SYSTEM. */ | |
3259 | ||
3260 | int | |
3261 | gdb_filename_fnmatch (const char *pattern, const char *string, int flags) | |
3262 | { | |
3263 | gdb_assert ((flags & FNM_FILE_NAME) != 0); | |
3264 | ||
3265 | /* It is unclear how '\' escaping vs. directory separator should coexist. */ | |
3266 | gdb_assert ((flags & FNM_NOESCAPE) != 0); | |
3267 | ||
3268 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3269 | { | |
3270 | char *pattern_slash, *string_slash; | |
3271 | ||
3272 | /* Replace '\' by '/' in both strings. */ | |
3273 | ||
0ae1c716 | 3274 | pattern_slash = (char *) alloca (strlen (pattern) + 1); |
202cbf1c JK |
3275 | strcpy (pattern_slash, pattern); |
3276 | pattern = pattern_slash; | |
3277 | for (; *pattern_slash != 0; pattern_slash++) | |
3278 | if (IS_DIR_SEPARATOR (*pattern_slash)) | |
3279 | *pattern_slash = '/'; | |
3280 | ||
0ae1c716 | 3281 | string_slash = (char *) alloca (strlen (string) + 1); |
202cbf1c JK |
3282 | strcpy (string_slash, string); |
3283 | string = string_slash; | |
3284 | for (; *string_slash != 0; string_slash++) | |
3285 | if (IS_DIR_SEPARATOR (*string_slash)) | |
3286 | *string_slash = '/'; | |
3287 | } | |
3288 | #endif /* HAVE_DOS_BASED_FILE_SYSTEM */ | |
3289 | ||
3290 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
3291 | flags |= FNM_CASEFOLD; | |
3292 | #endif /* HAVE_CASE_INSENSITIVE_FILE_SYSTEM */ | |
3293 | ||
3294 | return fnmatch (pattern, string, flags); | |
3295 | } | |
3296 | ||
cce0e923 DE |
3297 | /* Return the number of path elements in PATH. |
3298 | / = 1 | |
3299 | /foo = 2 | |
3300 | /foo/ = 2 | |
3301 | foo/bar = 2 | |
3302 | foo/ = 1 */ | |
3303 | ||
3304 | int | |
3305 | count_path_elements (const char *path) | |
3306 | { | |
3307 | int count = 0; | |
3308 | const char *p = path; | |
3309 | ||
3310 | if (HAS_DRIVE_SPEC (p)) | |
3311 | { | |
3312 | p = STRIP_DRIVE_SPEC (p); | |
3313 | ++count; | |
3314 | } | |
3315 | ||
3316 | while (*p != '\0') | |
3317 | { | |
3318 | if (IS_DIR_SEPARATOR (*p)) | |
3319 | ++count; | |
3320 | ++p; | |
3321 | } | |
3322 | ||
3323 | /* Backup one if last character is /, unless it's the only one. */ | |
3324 | if (p > path + 1 && IS_DIR_SEPARATOR (p[-1])) | |
3325 | --count; | |
3326 | ||
3327 | /* Add one for the file name, if present. */ | |
3328 | if (p > path && !IS_DIR_SEPARATOR (p[-1])) | |
3329 | ++count; | |
3330 | ||
3331 | return count; | |
3332 | } | |
3333 | ||
3334 | /* Remove N leading path elements from PATH. | |
3335 | N must be non-negative. | |
3336 | If PATH has more than N path elements then return NULL. | |
3337 | If PATH has exactly N path elements then return "". | |
3338 | See count_path_elements for a description of how we do the counting. */ | |
3339 | ||
3340 | const char * | |
3341 | strip_leading_path_elements (const char *path, int n) | |
3342 | { | |
3343 | int i = 0; | |
3344 | const char *p = path; | |
3345 | ||
3346 | gdb_assert (n >= 0); | |
3347 | ||
3348 | if (n == 0) | |
3349 | return p; | |
3350 | ||
3351 | if (HAS_DRIVE_SPEC (p)) | |
3352 | { | |
3353 | p = STRIP_DRIVE_SPEC (p); | |
3354 | ++i; | |
3355 | } | |
3356 | ||
3357 | while (i < n) | |
3358 | { | |
3359 | while (*p != '\0' && !IS_DIR_SEPARATOR (*p)) | |
3360 | ++p; | |
3361 | if (*p == '\0') | |
3362 | { | |
3363 | if (i + 1 == n) | |
3364 | return ""; | |
3365 | return NULL; | |
3366 | } | |
3367 | ++p; | |
3368 | ++i; | |
3369 | } | |
3370 | ||
3371 | return p; | |
3372 | } | |
3373 | ||
a99bc3d2 JB |
3374 | /* See utils.h. */ |
3375 | ||
3376 | void | |
3377 | copy_bitwise (gdb_byte *dest, ULONGEST dest_offset, | |
3378 | const gdb_byte *source, ULONGEST source_offset, | |
3379 | ULONGEST nbits, int bits_big_endian) | |
3380 | { | |
3381 | unsigned int buf, avail; | |
3382 | ||
3383 | if (nbits == 0) | |
3384 | return; | |
3385 | ||
3386 | if (bits_big_endian) | |
3387 | { | |
3388 | /* Start from the end, then work backwards. */ | |
3389 | dest_offset += nbits - 1; | |
3390 | dest += dest_offset / 8; | |
3391 | dest_offset = 7 - dest_offset % 8; | |
3392 | source_offset += nbits - 1; | |
3393 | source += source_offset / 8; | |
3394 | source_offset = 7 - source_offset % 8; | |
3395 | } | |
3396 | else | |
3397 | { | |
3398 | dest += dest_offset / 8; | |
3399 | dest_offset %= 8; | |
3400 | source += source_offset / 8; | |
3401 | source_offset %= 8; | |
3402 | } | |
3403 | ||
3404 | /* Fill BUF with DEST_OFFSET bits from the destination and 8 - | |
3405 | SOURCE_OFFSET bits from the source. */ | |
3406 | buf = *(bits_big_endian ? source-- : source++) >> source_offset; | |
3407 | buf <<= dest_offset; | |
3408 | buf |= *dest & ((1 << dest_offset) - 1); | |
3409 | ||
3410 | /* NBITS: bits yet to be written; AVAIL: BUF's fill level. */ | |
3411 | nbits += dest_offset; | |
3412 | avail = dest_offset + 8 - source_offset; | |
3413 | ||
3414 | /* Flush 8 bits from BUF, if appropriate. */ | |
3415 | if (nbits >= 8 && avail >= 8) | |
3416 | { | |
3417 | *(bits_big_endian ? dest-- : dest++) = buf; | |
3418 | buf >>= 8; | |
3419 | avail -= 8; | |
3420 | nbits -= 8; | |
3421 | } | |
3422 | ||
3423 | /* Copy the middle part. */ | |
3424 | if (nbits >= 8) | |
3425 | { | |
3426 | size_t len = nbits / 8; | |
3427 | ||
3428 | /* Use a faster method for byte-aligned copies. */ | |
3429 | if (avail == 0) | |
3430 | { | |
3431 | if (bits_big_endian) | |
3432 | { | |
3433 | dest -= len; | |
3434 | source -= len; | |
3435 | memcpy (dest + 1, source + 1, len); | |
3436 | } | |
3437 | else | |
3438 | { | |
3439 | memcpy (dest, source, len); | |
3440 | dest += len; | |
3441 | source += len; | |
3442 | } | |
3443 | } | |
3444 | else | |
3445 | { | |
3446 | while (len--) | |
3447 | { | |
3448 | buf |= *(bits_big_endian ? source-- : source++) << avail; | |
3449 | *(bits_big_endian ? dest-- : dest++) = buf; | |
3450 | buf >>= 8; | |
3451 | } | |
3452 | } | |
3453 | nbits %= 8; | |
3454 | } | |
3455 | ||
3456 | /* Write the last byte. */ | |
3457 | if (nbits) | |
3458 | { | |
3459 | if (avail < nbits) | |
3460 | buf |= *source << avail; | |
3461 | ||
3462 | buf &= (1 << nbits) - 1; | |
cf83625d | 3463 | *dest = (*dest & (~0U << nbits)) | buf; |
a99bc3d2 JB |
3464 | } |
3465 | } | |
3466 | ||
6c265988 | 3467 | void _initialize_utils (); |
3c16cced | 3468 | void |
6c265988 | 3469 | _initialize_utils () |
3c16cced | 3470 | { |
12904d37 TT |
3471 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
3472 | Set number of characters where GDB should wrap lines of its output."), _("\ | |
3473 | Show number of characters where GDB should wrap lines of its output."), _("\ | |
3474 | This affects where GDB wraps its output to fit the screen width.\n\ | |
3475 | Setting this to \"unlimited\" or zero prevents GDB from wrapping its output."), | |
3476 | set_width_command, | |
3477 | show_chars_per_line, | |
3478 | &setlist, &showlist); | |
3479 | ||
3480 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
3481 | Set number of lines in a page for GDB output pagination."), _("\ | |
3482 | Show number of lines in a page for GDB output pagination."), _("\ | |
3483 | This affects the number of lines after which GDB will pause\n\ | |
3484 | its output and ask you whether to continue.\n\ | |
3485 | Setting this to \"unlimited\" or zero causes GDB never pause during output."), | |
3486 | set_height_command, | |
3487 | show_lines_per_page, | |
3488 | &setlist, &showlist); | |
3489 | ||
3490 | add_setshow_boolean_cmd ("pagination", class_support, | |
3491 | &pagination_enabled, _("\ | |
3492 | Set state of GDB output pagination."), _("\ | |
3493 | Show state of GDB output pagination."), _("\ | |
3494 | When pagination is ON, GDB pauses at end of each screenful of\n\ | |
3495 | its output and asks you whether to continue.\n\ | |
3496 | Turning pagination off is an alternative to \"set height unlimited\"."), | |
3497 | NULL, | |
3498 | show_pagination_enabled, | |
3499 | &setlist, &showlist); | |
3500 | ||
3501 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, | |
3502 | &sevenbit_strings, _("\ | |
3503 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
3504 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
3505 | NULL, | |
3506 | show_sevenbit_strings, | |
3507 | &setprintlist, &showprintlist); | |
3508 | ||
3509 | add_setshow_boolean_cmd ("timestamp", class_maintenance, | |
3510 | &debug_timestamp, _("\ | |
3511 | Set timestamping of debugging messages."), _("\ | |
3512 | Show timestamping of debugging messages."), _("\ | |
3513 | When set, debugging messages will be marked with seconds and microseconds."), | |
3514 | NULL, | |
3515 | show_debug_timestamp, | |
3516 | &setdebuglist, &showdebuglist); | |
3517 | ||
3c16cced PA |
3518 | add_internal_problem_command (&internal_error_problem); |
3519 | add_internal_problem_command (&internal_warning_problem); | |
57fcfb1b | 3520 | add_internal_problem_command (&demangler_warning_problem); |
14278e1f TT |
3521 | |
3522 | #if GDB_SELF_TEST | |
1526853e | 3523 | selftests::register_test ("gdb_realpath", gdb_realpath_tests); |
d369b608 | 3524 | selftests::register_test ("gdb_argv_array_view", gdb_argv_as_array_view_test); |
14278e1f | 3525 | #endif |
3c16cced | 3526 | } |