Commit | Line | Data |
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c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
1bac305b | 2 | |
42a4f53d | 3 | Copyright (C) 1986-2019 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 | |
8626589c | 65 | #include "gdb_usleep.h" |
390a8aca | 66 | #include "interps.h" |
db1ff28b | 67 | #include "gdb_regex.h" |
268a13a5 TT |
68 | #include "gdbsupport/job-control.h" |
69 | #include "gdbsupport/selftest.h" | |
70 | #include "gdbsupport/gdb_optional.h" | |
0662b6a7 PA |
71 | #include "cp-support.h" |
72 | #include <algorithm> | |
268a13a5 | 73 | #include "gdbsupport/pathstuff.h" |
cbe56571 | 74 | #include "cli/cli-style.h" |
268a13a5 | 75 | #include "gdbsupport/scope-exit.h" |
0d12e84c | 76 | #include "gdbarch.h" |
8626589c | 77 | |
9a4105ab | 78 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
79 | |
80 | /* Prototypes for local functions */ | |
81 | ||
d9fcf2fb | 82 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
a0b31db1 | 83 | va_list, int) ATTRIBUTE_PRINTF (2, 0); |
c906108c | 84 | |
d9fcf2fb | 85 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 86 | |
a14ed312 | 87 | static void prompt_for_continue (void); |
c906108c | 88 | |
eb0d3137 | 89 | static void set_screen_size (void); |
a14ed312 | 90 | static void set_width (void); |
c906108c | 91 | |
260c0b2a DE |
92 | /* Time spent in prompt_for_continue in the currently executing command |
93 | waiting for user to respond. | |
94 | Initialized in make_command_stats_cleanup. | |
95 | Modified in prompt_for_continue and defaulted_query. | |
96 | Used in report_command_stats. */ | |
97 | ||
dcb07cfa | 98 | static std::chrono::steady_clock::duration prompt_for_continue_wait_time; |
260c0b2a | 99 | |
75feb17d DJ |
100 | /* A flag indicating whether to timestamp debugging messages. */ |
101 | ||
491144b5 | 102 | static bool debug_timestamp = false; |
75feb17d | 103 | |
491144b5 CB |
104 | /* True means that strings with character values >0x7F should be printed |
105 | as octal escapes. False means just print the value (e.g. it's an | |
c906108c SS |
106 | international character, and the terminal or window can cope.) */ |
107 | ||
491144b5 | 108 | bool sevenbit_strings = false; |
920d2a44 AC |
109 | static void |
110 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
111 | struct cmd_list_element *c, const char *value) | |
112 | { | |
3e43a32a MS |
113 | fprintf_filtered (file, _("Printing of 8-bit characters " |
114 | "in strings as \\nnn is %s.\n"), | |
920d2a44 AC |
115 | value); |
116 | } | |
c906108c | 117 | |
c906108c SS |
118 | /* String to be printed before warning messages, if any. */ |
119 | ||
69bbf465 | 120 | const char *warning_pre_print = "\nwarning: "; |
c906108c | 121 | |
491144b5 | 122 | bool pagination_enabled = true; |
920d2a44 AC |
123 | static void |
124 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
125 | struct cmd_list_element *c, const char *value) | |
126 | { | |
127 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
128 | } | |
129 | ||
c906108c | 130 | \f |
c5aa993b | 131 | |
8731e58e | 132 | |
f5a96129 AC |
133 | /* Print a warning message. The first argument STRING is the warning |
134 | message, used as an fprintf format string, the second is the | |
135 | va_list of arguments for that string. A warning is unfiltered (not | |
136 | paginated) so that the user does not need to page through each | |
137 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
138 | |
139 | void | |
f5a96129 | 140 | vwarning (const char *string, va_list args) |
c906108c | 141 | { |
9a4105ab AC |
142 | if (deprecated_warning_hook) |
143 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
144 | else |
145 | { | |
223ffa71 | 146 | gdb::optional<target_terminal::scoped_restore_terminal_state> term_state; |
0d2f5c07 | 147 | if (target_supports_terminal_ours ()) |
c5ac1540 | 148 | { |
223ffa71 TT |
149 | term_state.emplace (); |
150 | target_terminal::ours_for_output (); | |
c5ac1540 | 151 | } |
0d2f5c07 GB |
152 | if (filtered_printing_initialized ()) |
153 | wrap_here (""); /* Force out any buffered output. */ | |
f5a96129 AC |
154 | gdb_flush (gdb_stdout); |
155 | if (warning_pre_print) | |
306d9ac5 | 156 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
157 | vfprintf_unfiltered (gdb_stderr, string, args); |
158 | fprintf_unfiltered (gdb_stderr, "\n"); | |
f5a96129 | 159 | } |
c906108c SS |
160 | } |
161 | ||
c906108c SS |
162 | /* Print an error message and return to command level. |
163 | The first argument STRING is the error message, used as a fprintf string, | |
164 | and the remaining args are passed as arguments to it. */ | |
165 | ||
c25c4a8b | 166 | void |
4ce44c66 JM |
167 | verror (const char *string, va_list args) |
168 | { | |
6b1b7650 | 169 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
170 | } |
171 | ||
c25c4a8b | 172 | void |
d7e74731 | 173 | error_stream (const string_file &stream) |
2acceee2 | 174 | { |
d7e74731 | 175 | error (("%s"), stream.c_str ()); |
2acceee2 | 176 | } |
c906108c | 177 | |
2437fd32 GB |
178 | /* Emit a message and abort. */ |
179 | ||
180 | static void ATTRIBUTE_NORETURN | |
181 | abort_with_message (const char *msg) | |
182 | { | |
72542b8e | 183 | if (current_ui == NULL) |
2437fd32 GB |
184 | fputs (msg, stderr); |
185 | else | |
186 | fputs_unfiltered (msg, gdb_stderr); | |
187 | ||
188 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
189 | } | |
190 | ||
7991dee7 JK |
191 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
192 | ||
eae7090b | 193 | void |
7991dee7 JK |
194 | dump_core (void) |
195 | { | |
196 | #ifdef HAVE_SETRLIMIT | |
206c1947 | 197 | struct rlimit rlim = { (rlim_t) RLIM_INFINITY, (rlim_t) RLIM_INFINITY }; |
7991dee7 JK |
198 | |
199 | setrlimit (RLIMIT_CORE, &rlim); | |
200 | #endif /* HAVE_SETRLIMIT */ | |
201 | ||
202 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
203 | } | |
204 | ||
3e43a32a | 205 | /* Check whether GDB will be able to dump core using the dump_core |
eae7090b GB |
206 | function. Returns zero if GDB cannot or should not dump core. |
207 | If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected. | |
208 | If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected. */ | |
7991dee7 | 209 | |
eae7090b GB |
210 | int |
211 | can_dump_core (enum resource_limit_kind limit_kind) | |
7991dee7 JK |
212 | { |
213 | #ifdef HAVE_GETRLIMIT | |
214 | struct rlimit rlim; | |
215 | ||
216 | /* Be quiet and assume we can dump if an error is returned. */ | |
217 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
218 | return 1; | |
219 | ||
eae7090b | 220 | switch (limit_kind) |
7991dee7 | 221 | { |
eae7090b GB |
222 | case LIMIT_CUR: |
223 | if (rlim.rlim_cur == 0) | |
224 | return 0; | |
565e0eda | 225 | /* Fall through. */ |
eae7090b GB |
226 | |
227 | case LIMIT_MAX: | |
228 | if (rlim.rlim_max == 0) | |
229 | return 0; | |
7991dee7 JK |
230 | } |
231 | #endif /* HAVE_GETRLIMIT */ | |
232 | ||
233 | return 1; | |
234 | } | |
235 | ||
eae7090b GB |
236 | /* Print a warning that we cannot dump core. */ |
237 | ||
238 | void | |
239 | warn_cant_dump_core (const char *reason) | |
240 | { | |
241 | fprintf_unfiltered (gdb_stderr, | |
242 | _("%s\nUnable to dump core, use `ulimit -c" | |
243 | " unlimited' before executing GDB next time.\n"), | |
244 | reason); | |
245 | } | |
246 | ||
247 | /* Check whether GDB will be able to dump core using the dump_core | |
248 | function, and print a warning if we cannot. */ | |
249 | ||
250 | static int | |
251 | can_dump_core_warn (enum resource_limit_kind limit_kind, | |
252 | const char *reason) | |
253 | { | |
254 | int core_dump_allowed = can_dump_core (limit_kind); | |
255 | ||
256 | if (!core_dump_allowed) | |
257 | warn_cant_dump_core (reason); | |
258 | ||
259 | return core_dump_allowed; | |
260 | } | |
261 | ||
3c16cced PA |
262 | /* Allow the user to configure the debugger behavior with respect to |
263 | what to do when an internal problem is detected. */ | |
264 | ||
265 | const char internal_problem_ask[] = "ask"; | |
266 | const char internal_problem_yes[] = "yes"; | |
267 | const char internal_problem_no[] = "no"; | |
40478521 | 268 | static const char *const internal_problem_modes[] = |
3c16cced PA |
269 | { |
270 | internal_problem_ask, | |
271 | internal_problem_yes, | |
272 | internal_problem_no, | |
273 | NULL | |
274 | }; | |
3c16cced | 275 | |
581e13c1 | 276 | /* Print a message reporting an internal error/warning. Ask the user |
dec43320 AC |
277 | if they want to continue, dump core, or just exit. Return |
278 | something to indicate a quit. */ | |
c906108c | 279 | |
dec43320 | 280 | struct internal_problem |
c906108c | 281 | { |
dec43320 | 282 | const char *name; |
57fcfb1b | 283 | int user_settable_should_quit; |
3c16cced | 284 | const char *should_quit; |
57fcfb1b | 285 | int user_settable_should_dump_core; |
3c16cced | 286 | const char *should_dump_core; |
dec43320 AC |
287 | }; |
288 | ||
289 | /* Report a problem, internal to GDB, to the user. Once the problem | |
290 | has been reported, and assuming GDB didn't quit, the caller can | |
291 | either allow execution to resume or throw an error. */ | |
292 | ||
a0b31db1 | 293 | static void ATTRIBUTE_PRINTF (4, 0) |
dec43320 | 294 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 295 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 296 | { |
dec43320 | 297 | static int dejavu; |
375fc983 | 298 | int quit_p; |
7be570e7 | 299 | int dump_core_p; |
e05550d7 | 300 | std::string reason; |
c906108c | 301 | |
dec43320 | 302 | /* Don't allow infinite error/warning recursion. */ |
714b1282 | 303 | { |
02cf60c7 | 304 | static const char msg[] = "Recursive internal problem.\n"; |
5d502164 | 305 | |
714b1282 AC |
306 | switch (dejavu) |
307 | { | |
308 | case 0: | |
309 | dejavu = 1; | |
310 | break; | |
311 | case 1: | |
312 | dejavu = 2; | |
2437fd32 | 313 | abort_with_message (msg); |
714b1282 AC |
314 | default: |
315 | dejavu = 3; | |
bf1d7d9c JB |
316 | /* Newer GLIBC versions put the warn_unused_result attribute |
317 | on write, but this is one of those rare cases where | |
318 | ignoring the return value is correct. Casting to (void) | |
319 | does not fix this problem. This is the solution suggested | |
320 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
321 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
7991dee7 | 322 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
323 | exit (1); |
324 | } | |
325 | } | |
c906108c | 326 | |
714b1282 AC |
327 | /* Create a string containing the full error/warning message. Need |
328 | to call query with this full string, as otherwize the reason | |
329 | (error/warning) and question become separated. Format using a | |
330 | style similar to a compiler error message. Include extra detail | |
331 | so that the user knows that they are living on the edge. */ | |
332 | { | |
f8bfbf22 | 333 | std::string msg = string_vprintf (fmt, ap); |
e05550d7 TT |
334 | reason = string_printf ("%s:%d: %s: %s\n" |
335 | "A problem internal to GDB has been detected,\n" | |
336 | "further debugging may prove unreliable.", | |
337 | file, line, problem->name, msg.c_str ()); | |
714b1282 | 338 | } |
7be570e7 | 339 | |
2437fd32 | 340 | /* Fall back to abort_with_message if gdb_stderr is not set up. */ |
72542b8e | 341 | if (current_ui == NULL) |
2437fd32 | 342 | { |
e05550d7 | 343 | fputs (reason.c_str (), stderr); |
2437fd32 GB |
344 | abort_with_message ("\n"); |
345 | } | |
346 | ||
347 | /* Try to get the message out and at the start of a new line. */ | |
223ffa71 | 348 | gdb::optional<target_terminal::scoped_restore_terminal_state> term_state; |
2437fd32 | 349 | if (target_supports_terminal_ours ()) |
c5ac1540 | 350 | { |
223ffa71 TT |
351 | term_state.emplace (); |
352 | target_terminal::ours_for_output (); | |
c5ac1540 | 353 | } |
2437fd32 GB |
354 | if (filtered_printing_initialized ()) |
355 | begin_line (); | |
356 | ||
196a707b | 357 | /* Emit the message unless query will emit it below. */ |
2437fd32 GB |
358 | if (problem->should_quit != internal_problem_ask |
359 | || !confirm | |
360 | || !filtered_printing_initialized ()) | |
e05550d7 | 361 | fprintf_unfiltered (gdb_stderr, "%s\n", reason.c_str ()); |
196a707b | 362 | |
3c16cced | 363 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 364 | { |
dec43320 | 365 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
366 | this lessens the likelihood of GDB going into an infinite |
367 | loop. */ | |
2437fd32 | 368 | if (!confirm || !filtered_printing_initialized ()) |
196a707b | 369 | quit_p = 1; |
26bb68be | 370 | else |
e05550d7 TT |
371 | quit_p = query (_("%s\nQuit this debugging session? "), |
372 | reason.c_str ()); | |
dec43320 | 373 | } |
3c16cced PA |
374 | else if (problem->should_quit == internal_problem_yes) |
375 | quit_p = 1; | |
376 | else if (problem->should_quit == internal_problem_no) | |
377 | quit_p = 0; | |
378 | else | |
379 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 380 | |
add6c04d GB |
381 | fputs_unfiltered (_("\nThis is a bug, please report it."), gdb_stderr); |
382 | if (REPORT_BUGS_TO[0]) | |
383 | fprintf_unfiltered (gdb_stderr, _(" For instructions, see:\n%s."), | |
384 | REPORT_BUGS_TO); | |
385 | fputs_unfiltered ("\n\n", gdb_stderr); | |
386 | ||
3c16cced | 387 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 388 | { |
e05550d7 | 389 | if (!can_dump_core_warn (LIMIT_MAX, reason.c_str ())) |
7991dee7 | 390 | dump_core_p = 0; |
2437fd32 GB |
391 | else if (!filtered_printing_initialized ()) |
392 | dump_core_p = 1; | |
7991dee7 JK |
393 | else |
394 | { | |
395 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
396 | `dropping' so that it is easier to see that something went | |
397 | wrong in GDB. */ | |
e05550d7 TT |
398 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), |
399 | reason.c_str ()); | |
7991dee7 | 400 | } |
dec43320 | 401 | } |
3c16cced | 402 | else if (problem->should_dump_core == internal_problem_yes) |
e05550d7 | 403 | dump_core_p = can_dump_core_warn (LIMIT_MAX, reason.c_str ()); |
3c16cced PA |
404 | else if (problem->should_dump_core == internal_problem_no) |
405 | dump_core_p = 0; | |
406 | else | |
407 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 408 | |
375fc983 | 409 | if (quit_p) |
7be570e7 JM |
410 | { |
411 | if (dump_core_p) | |
7991dee7 | 412 | dump_core (); |
375fc983 AC |
413 | else |
414 | exit (1); | |
7be570e7 JM |
415 | } |
416 | else | |
417 | { | |
418 | if (dump_core_p) | |
375fc983 | 419 | { |
9b265ec2 | 420 | #ifdef HAVE_WORKING_FORK |
375fc983 | 421 | if (fork () == 0) |
7991dee7 | 422 | dump_core (); |
9b265ec2 | 423 | #endif |
375fc983 | 424 | } |
7be570e7 | 425 | } |
96baa820 JM |
426 | |
427 | dejavu = 0; | |
dec43320 AC |
428 | } |
429 | ||
430 | static struct internal_problem internal_error_problem = { | |
57fcfb1b | 431 | "internal-error", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
432 | }; |
433 | ||
c25c4a8b | 434 | void |
8731e58e | 435 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
436 | { |
437 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
2c51604d | 438 | throw_quit (_("Command aborted.")); |
c906108c SS |
439 | } |
440 | ||
dec43320 | 441 | static struct internal_problem internal_warning_problem = { |
57fcfb1b | 442 | "internal-warning", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
443 | }; |
444 | ||
445 | void | |
8731e58e | 446 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
447 | { |
448 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
449 | } | |
450 | ||
57fcfb1b GB |
451 | static struct internal_problem demangler_warning_problem = { |
452 | "demangler-warning", 1, internal_problem_ask, 0, internal_problem_no | |
453 | }; | |
454 | ||
455 | void | |
456 | demangler_vwarning (const char *file, int line, const char *fmt, va_list ap) | |
457 | { | |
458 | internal_vproblem (&demangler_warning_problem, file, line, fmt, ap); | |
459 | } | |
460 | ||
461 | void | |
462 | demangler_warning (const char *file, int line, const char *string, ...) | |
463 | { | |
464 | va_list ap; | |
465 | ||
466 | va_start (ap, string); | |
467 | demangler_vwarning (file, line, string, ap); | |
468 | va_end (ap); | |
469 | } | |
470 | ||
3c16cced PA |
471 | /* Dummy functions to keep add_prefix_cmd happy. */ |
472 | ||
473 | static void | |
981a3fb3 | 474 | set_internal_problem_cmd (const char *args, int from_tty) |
3c16cced PA |
475 | { |
476 | } | |
477 | ||
478 | static void | |
981a3fb3 | 479 | show_internal_problem_cmd (const char *args, int from_tty) |
3c16cced PA |
480 | { |
481 | } | |
482 | ||
483 | /* When GDB reports an internal problem (error or warning) it gives | |
484 | the user the opportunity to quit GDB and/or create a core file of | |
485 | the current debug session. This function registers a few commands | |
486 | that make it possible to specify that GDB should always or never | |
487 | quit or create a core file, without asking. The commands look | |
488 | like: | |
489 | ||
490 | maint set PROBLEM-NAME quit ask|yes|no | |
491 | maint show PROBLEM-NAME quit | |
492 | maint set PROBLEM-NAME corefile ask|yes|no | |
493 | maint show PROBLEM-NAME corefile | |
494 | ||
495 | Where PROBLEM-NAME is currently "internal-error" or | |
496 | "internal-warning". */ | |
497 | ||
498 | static void | |
499 | add_internal_problem_command (struct internal_problem *problem) | |
500 | { | |
501 | struct cmd_list_element **set_cmd_list; | |
502 | struct cmd_list_element **show_cmd_list; | |
503 | char *set_doc; | |
504 | char *show_doc; | |
505 | ||
8d749320 SM |
506 | set_cmd_list = XNEW (struct cmd_list_element *); |
507 | show_cmd_list = XNEW (struct cmd_list_element *); | |
3c16cced PA |
508 | *set_cmd_list = NULL; |
509 | *show_cmd_list = NULL; | |
510 | ||
511 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
512 | problem->name); | |
513 | ||
514 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
515 | problem->name); | |
516 | ||
981a3fb3 | 517 | add_prefix_cmd (problem->name, |
3c16cced PA |
518 | class_maintenance, set_internal_problem_cmd, set_doc, |
519 | set_cmd_list, | |
c4f7c687 MK |
520 | concat ("maintenance set ", problem->name, " ", |
521 | (char *) NULL), | |
3c16cced PA |
522 | 0/*allow-unknown*/, &maintenance_set_cmdlist); |
523 | ||
981a3fb3 | 524 | add_prefix_cmd (problem->name, |
3c16cced PA |
525 | class_maintenance, show_internal_problem_cmd, show_doc, |
526 | show_cmd_list, | |
c4f7c687 MK |
527 | concat ("maintenance show ", problem->name, " ", |
528 | (char *) NULL), | |
3c16cced PA |
529 | 0/*allow-unknown*/, &maintenance_show_cmdlist); |
530 | ||
57fcfb1b GB |
531 | if (problem->user_settable_should_quit) |
532 | { | |
533 | set_doc = xstrprintf (_("Set whether GDB should quit " | |
590042fc | 534 | "when an %s is detected."), |
57fcfb1b GB |
535 | problem->name); |
536 | show_doc = xstrprintf (_("Show whether GDB will quit " | |
590042fc | 537 | "when an %s is detected."), |
57fcfb1b GB |
538 | problem->name); |
539 | add_setshow_enum_cmd ("quit", class_maintenance, | |
540 | internal_problem_modes, | |
541 | &problem->should_quit, | |
542 | set_doc, | |
543 | show_doc, | |
544 | NULL, /* help_doc */ | |
545 | NULL, /* setfunc */ | |
546 | NULL, /* showfunc */ | |
547 | set_cmd_list, | |
548 | show_cmd_list); | |
549 | ||
550 | xfree (set_doc); | |
551 | xfree (show_doc); | |
552 | } | |
1eefb858 | 553 | |
57fcfb1b GB |
554 | if (problem->user_settable_should_dump_core) |
555 | { | |
556 | set_doc = xstrprintf (_("Set whether GDB should create a core " | |
590042fc | 557 | "file of GDB when %s is detected."), |
57fcfb1b GB |
558 | problem->name); |
559 | show_doc = xstrprintf (_("Show whether GDB will create a core " | |
590042fc | 560 | "file of GDB when %s is detected."), |
57fcfb1b GB |
561 | problem->name); |
562 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
563 | internal_problem_modes, | |
564 | &problem->should_dump_core, | |
565 | set_doc, | |
566 | show_doc, | |
567 | NULL, /* help_doc */ | |
568 | NULL, /* setfunc */ | |
569 | NULL, /* showfunc */ | |
570 | set_cmd_list, | |
571 | show_cmd_list); | |
572 | ||
573 | xfree (set_doc); | |
574 | xfree (show_doc); | |
575 | } | |
3c16cced PA |
576 | } |
577 | ||
0cf4063e | 578 | /* Return a newly allocated string, containing the PREFIX followed |
18e9961f | 579 | by the system error message for errno (separated by a colon). */ |
0cf4063e | 580 | |
18e9961f | 581 | static std::string |
0cf4063e JB |
582 | perror_string (const char *prefix) |
583 | { | |
584 | char *err; | |
0cf4063e JB |
585 | |
586 | err = safe_strerror (errno); | |
18e9961f | 587 | return std::string (prefix) + ": " + err; |
0cf4063e JB |
588 | } |
589 | ||
c906108c | 590 | /* Print the system error message for errno, and also mention STRING |
598d3636 JK |
591 | as the file name for which the error was encountered. Use ERRCODE |
592 | for the thrown exception. Then return to command level. */ | |
c906108c | 593 | |
c25c4a8b | 594 | void |
598d3636 | 595 | throw_perror_with_name (enum errors errcode, const char *string) |
c906108c | 596 | { |
18e9961f | 597 | std::string combined = perror_string (string); |
c906108c SS |
598 | |
599 | /* I understand setting these is a matter of taste. Still, some people | |
600 | may clear errno but not know about bfd_error. Doing this here is not | |
581e13c1 | 601 | unreasonable. */ |
c906108c SS |
602 | bfd_set_error (bfd_error_no_error); |
603 | errno = 0; | |
604 | ||
18e9961f | 605 | throw_error (errcode, _("%s."), combined.c_str ()); |
598d3636 JK |
606 | } |
607 | ||
608 | /* See throw_perror_with_name, ERRCODE defaults here to GENERIC_ERROR. */ | |
609 | ||
610 | void | |
611 | perror_with_name (const char *string) | |
612 | { | |
613 | throw_perror_with_name (GENERIC_ERROR, string); | |
c906108c SS |
614 | } |
615 | ||
7c647d61 JB |
616 | /* Same as perror_with_name except that it prints a warning instead |
617 | of throwing an error. */ | |
618 | ||
619 | void | |
620 | perror_warning_with_name (const char *string) | |
621 | { | |
18e9961f TT |
622 | std::string combined = perror_string (string); |
623 | warning (_("%s"), combined.c_str ()); | |
7c647d61 JB |
624 | } |
625 | ||
c906108c SS |
626 | /* Print the system error message for ERRCODE, and also mention STRING |
627 | as the file name for which the error was encountered. */ | |
628 | ||
629 | void | |
6972bc8b | 630 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
631 | { |
632 | char *err; | |
633 | char *combined; | |
634 | ||
635 | err = safe_strerror (errcode); | |
636 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
637 | strcpy (combined, string); | |
638 | strcat (combined, ": "); | |
639 | strcat (combined, err); | |
640 | ||
641 | /* We want anything which was printed on stdout to come out first, before | |
642 | this message. */ | |
643 | gdb_flush (gdb_stdout); | |
644 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
645 | } | |
646 | ||
647 | /* Control C eventually causes this to be called, at a convenient time. */ | |
648 | ||
649 | void | |
fba45db2 | 650 | quit (void) |
c906108c | 651 | { |
06c868a8 JK |
652 | if (sync_quit_force_run) |
653 | { | |
654 | sync_quit_force_run = 0; | |
268a799a | 655 | quit_force (NULL, 0); |
06c868a8 JK |
656 | } |
657 | ||
7be570e7 JM |
658 | #ifdef __MSDOS__ |
659 | /* No steenking SIGINT will ever be coming our way when the | |
660 | program is resumed. Don't lie. */ | |
2c51604d | 661 | throw_quit ("Quit"); |
7be570e7 | 662 | #else |
c906108c | 663 | if (job_control |
8731e58e AC |
664 | /* If there is no terminal switching for this target, then we can't |
665 | possibly get screwed by the lack of job control. */ | |
b0ed115f | 666 | || !target_supports_terminal_ours ()) |
2c51604d | 667 | throw_quit ("Quit"); |
c906108c | 668 | else |
2c51604d | 669 | throw_quit ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 670 | #endif |
c906108c SS |
671 | } |
672 | ||
abc56d60 PA |
673 | /* See defs.h. */ |
674 | ||
675 | void | |
676 | maybe_quit (void) | |
677 | { | |
048094ac | 678 | if (sync_quit_force_run) |
abc56d60 | 679 | quit (); |
048094ac PA |
680 | |
681 | quit_handler (); | |
abc56d60 PA |
682 | } |
683 | ||
c906108c | 684 | \f |
c906108c | 685 | /* Called when a memory allocation fails, with the number of bytes of |
581e13c1 | 686 | memory requested in SIZE. */ |
c906108c | 687 | |
c25c4a8b | 688 | void |
d26e3629 | 689 | malloc_failure (long size) |
c906108c SS |
690 | { |
691 | if (size > 0) | |
692 | { | |
8e65ff28 | 693 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 694 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 695 | size); |
c906108c SS |
696 | } |
697 | else | |
698 | { | |
e2e0b3e5 | 699 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
700 | } |
701 | } | |
702 | ||
c906108c SS |
703 | /* My replacement for the read system call. |
704 | Used like `read' but keeps going if `read' returns too soon. */ | |
705 | ||
706 | int | |
fba45db2 | 707 | myread (int desc, char *addr, int len) |
c906108c | 708 | { |
52f0bd74 | 709 | int val; |
c906108c SS |
710 | int orglen = len; |
711 | ||
712 | while (len > 0) | |
713 | { | |
714 | val = read (desc, addr, len); | |
715 | if (val < 0) | |
716 | return val; | |
717 | if (val == 0) | |
718 | return orglen - len; | |
719 | len -= val; | |
720 | addr += val; | |
721 | } | |
722 | return orglen; | |
723 | } | |
d26e3629 | 724 | |
c906108c | 725 | void |
aa1ee363 | 726 | print_spaces (int n, struct ui_file *file) |
c906108c | 727 | { |
392a587b | 728 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
729 | } |
730 | ||
731 | /* Print a host address. */ | |
732 | ||
733 | void | |
b80c3053 | 734 | gdb_print_host_address_1 (const void *addr, struct ui_file *stream) |
c906108c | 735 | { |
ea8992ce | 736 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 737 | } |
7c50a931 | 738 | |
c906108c | 739 | \f |
c5aa993b | 740 | |
223ffa71 TT |
741 | /* An RAII class that sets up to handle input and then tears down |
742 | during destruction. */ | |
3eb7562a | 743 | |
223ffa71 | 744 | class scoped_input_handler |
3eb7562a | 745 | { |
223ffa71 | 746 | public: |
3eb7562a | 747 | |
223ffa71 | 748 | scoped_input_handler () |
c2f97536 | 749 | : m_quit_handler (&quit_handler, default_quit_handler), |
223ffa71 TT |
750 | m_ui (NULL) |
751 | { | |
752 | target_terminal::ours (); | |
753 | ui_register_input_event_handler (current_ui); | |
754 | if (current_ui->prompt_state == PROMPT_BLOCKED) | |
755 | m_ui = current_ui; | |
756 | } | |
3eb7562a | 757 | |
223ffa71 TT |
758 | ~scoped_input_handler () |
759 | { | |
760 | if (m_ui != NULL) | |
761 | ui_unregister_input_event_handler (m_ui); | |
762 | } | |
3eb7562a | 763 | |
223ffa71 | 764 | DISABLE_COPY_AND_ASSIGN (scoped_input_handler); |
3eb7562a | 765 | |
223ffa71 | 766 | private: |
3eb7562a | 767 | |
223ffa71 TT |
768 | /* Save and restore the terminal state. */ |
769 | target_terminal::scoped_restore_terminal_state m_term_state; | |
3eb7562a | 770 | |
223ffa71 | 771 | /* Save and restore the quit handler. */ |
c2f97536 | 772 | scoped_restore_tmpl<quit_handler_ftype *> m_quit_handler; |
223ffa71 TT |
773 | |
774 | /* The saved UI, if non-NULL. */ | |
775 | struct ui *m_ui; | |
776 | }; | |
3eb7562a | 777 | |
db1ff28b JK |
778 | \f |
779 | ||
981c7f5a | 780 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 781 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
782 | answer is yes, or default the answer to the specified default |
783 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
784 | default answer, or '\0' for no default. | |
cbdeadca JJ |
785 | CTLSTR is the control string and should end in "? ". It should |
786 | not say how to answer, because we do that. | |
787 | ARGS are the arguments passed along with the CTLSTR argument to | |
788 | printf. */ | |
789 | ||
a0b31db1 | 790 | static int ATTRIBUTE_PRINTF (1, 0) |
cbdeadca JJ |
791 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
792 | { | |
cbdeadca JJ |
793 | int retval; |
794 | int def_value; | |
795 | char def_answer, not_def_answer; | |
a121b7c1 | 796 | const char *y_string, *n_string; |
cbdeadca JJ |
797 | |
798 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
799 | if (defchar == '\0') |
800 | { | |
801 | def_value = 1; | |
802 | def_answer = 'Y'; | |
803 | not_def_answer = 'N'; | |
804 | y_string = "y"; | |
805 | n_string = "n"; | |
806 | } | |
807 | else if (defchar == 'y') | |
cbdeadca JJ |
808 | { |
809 | def_value = 1; | |
810 | def_answer = 'Y'; | |
811 | not_def_answer = 'N'; | |
812 | y_string = "[y]"; | |
813 | n_string = "n"; | |
814 | } | |
815 | else | |
816 | { | |
817 | def_value = 0; | |
818 | def_answer = 'N'; | |
819 | not_def_answer = 'Y'; | |
820 | y_string = "y"; | |
821 | n_string = "[n]"; | |
822 | } | |
823 | ||
981c7f5a | 824 | /* Automatically answer the default value if the user did not want |
a502cf95 | 825 | prompts or the command was issued with the server prefix. */ |
e360902b | 826 | if (!confirm || server_command) |
981c7f5a DJ |
827 | return def_value; |
828 | ||
829 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 830 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
831 | way, important error messages don't get lost when talking to GDB |
832 | over a pipe. */ | |
268a799a | 833 | if (current_ui->instream != current_ui->stdin_stream |
26a06916 SM |
834 | || !input_interactive_p (current_ui) |
835 | /* Restrict queries to the main UI. */ | |
836 | || current_ui != main_ui) | |
981c7f5a | 837 | { |
223ffa71 TT |
838 | target_terminal::scoped_restore_terminal_state term_state; |
839 | target_terminal::ours_for_output (); | |
981c7f5a DJ |
840 | wrap_here (""); |
841 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
842 | ||
3e43a32a MS |
843 | printf_filtered (_("(%s or %s) [answered %c; " |
844 | "input not from terminal]\n"), | |
981c7f5a | 845 | y_string, n_string, def_answer); |
981c7f5a DJ |
846 | |
847 | return def_value; | |
848 | } | |
849 | ||
9a4105ab | 850 | if (deprecated_query_hook) |
cbdeadca | 851 | { |
223ffa71 TT |
852 | target_terminal::scoped_restore_terminal_state term_state; |
853 | return deprecated_query_hook (ctlstr, args); | |
651ce16a | 854 | } |
80dbc9fd | 855 | |
981c7f5a | 856 | /* Format the question outside of the loop, to avoid reusing args. */ |
e05550d7 TT |
857 | std::string question = string_vprintf (ctlstr, args); |
858 | std::string prompt | |
859 | = string_printf (_("%s%s(%s or %s) %s"), | |
860 | annotation_level > 1 ? "\n\032\032pre-query\n" : "", | |
861 | question.c_str (), y_string, n_string, | |
862 | annotation_level > 1 ? "\n\032\032query\n" : ""); | |
981c7f5a | 863 | |
dcb07cfa PA |
864 | /* Used to add duration we waited for user to respond to |
865 | prompt_for_continue_wait_time. */ | |
866 | using namespace std::chrono; | |
867 | steady_clock::time_point prompt_started = steady_clock::now (); | |
260c0b2a | 868 | |
223ffa71 | 869 | scoped_input_handler prepare_input; |
651ce16a | 870 | |
cbdeadca JJ |
871 | while (1) |
872 | { | |
588dcc3e | 873 | char *response, answer; |
cbdeadca | 874 | |
cbdeadca | 875 | gdb_flush (gdb_stdout); |
e05550d7 | 876 | response = gdb_readline_wrapper (prompt.c_str ()); |
cbdeadca | 877 | |
588dcc3e | 878 | if (response == NULL) /* C-d */ |
cbdeadca | 879 | { |
fa3fd85b | 880 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
881 | retval = def_value; |
882 | break; | |
883 | } | |
588dcc3e PP |
884 | |
885 | answer = response[0]; | |
886 | xfree (response); | |
cbdeadca JJ |
887 | |
888 | if (answer >= 'a') | |
889 | answer -= 040; | |
890 | /* Check answer. For the non-default, the user must specify | |
891 | the non-default explicitly. */ | |
892 | if (answer == not_def_answer) | |
893 | { | |
894 | retval = !def_value; | |
895 | break; | |
896 | } | |
981c7f5a DJ |
897 | /* Otherwise, if a default was specified, the user may either |
898 | specify the required input or have it default by entering | |
899 | nothing. */ | |
900 | if (answer == def_answer | |
588dcc3e | 901 | || (defchar != '\0' && answer == '\0')) |
cbdeadca JJ |
902 | { |
903 | retval = def_value; | |
904 | break; | |
905 | } | |
906 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 907 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
908 | y_string, n_string); |
909 | } | |
910 | ||
260c0b2a | 911 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
dcb07cfa | 912 | prompt_for_continue_wait_time += steady_clock::now () - prompt_started; |
260c0b2a | 913 | |
cbdeadca | 914 | if (annotation_level > 1) |
a3f17187 | 915 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
916 | return retval; |
917 | } | |
918 | \f | |
919 | ||
920 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
921 | answer is yes, or 0 if answer is defaulted. | |
922 | Takes three args which are given to printf to print the question. | |
923 | The first, a control string, should end in "? ". | |
924 | It should not say how to answer, because we do that. */ | |
925 | ||
926 | int | |
927 | nquery (const char *ctlstr, ...) | |
928 | { | |
929 | va_list args; | |
899500d6 | 930 | int ret; |
cbdeadca JJ |
931 | |
932 | va_start (args, ctlstr); | |
899500d6 | 933 | ret = defaulted_query (ctlstr, 'n', args); |
cbdeadca | 934 | va_end (args); |
899500d6 | 935 | return ret; |
cbdeadca JJ |
936 | } |
937 | ||
938 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
939 | answer is yes, or 1 if answer is defaulted. | |
940 | Takes three args which are given to printf to print the question. | |
941 | The first, a control string, should end in "? ". | |
942 | It should not say how to answer, because we do that. */ | |
943 | ||
944 | int | |
945 | yquery (const char *ctlstr, ...) | |
946 | { | |
947 | va_list args; | |
899500d6 | 948 | int ret; |
cbdeadca JJ |
949 | |
950 | va_start (args, ctlstr); | |
899500d6 | 951 | ret = defaulted_query (ctlstr, 'y', args); |
cbdeadca | 952 | va_end (args); |
899500d6 | 953 | return ret; |
cbdeadca JJ |
954 | } |
955 | ||
981c7f5a DJ |
956 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
957 | Takes three args which are given to printf to print the question. | |
958 | The first, a control string, should end in "? ". | |
959 | It should not say how to answer, because we do that. */ | |
960 | ||
961 | int | |
962 | query (const char *ctlstr, ...) | |
963 | { | |
964 | va_list args; | |
899500d6 | 965 | int ret; |
981c7f5a DJ |
966 | |
967 | va_start (args, ctlstr); | |
899500d6 | 968 | ret = defaulted_query (ctlstr, '\0', args); |
981c7f5a | 969 | va_end (args); |
899500d6 | 970 | return ret; |
981c7f5a DJ |
971 | } |
972 | ||
6c7a06a3 TT |
973 | /* A helper for parse_escape that converts a host character to a |
974 | target character. C is the host character. If conversion is | |
975 | possible, then the target character is stored in *TARGET_C and the | |
976 | function returns 1. Otherwise, the function returns 0. */ | |
977 | ||
978 | static int | |
f870a310 | 979 | host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c) |
234b45d4 | 980 | { |
6c7a06a3 | 981 | char the_char = c; |
6c7a06a3 | 982 | int result = 0; |
234b45d4 | 983 | |
8268c778 | 984 | auto_obstack host_data; |
234b45d4 | 985 | |
f870a310 | 986 | convert_between_encodings (target_charset (gdbarch), host_charset (), |
ac91cd70 PA |
987 | (gdb_byte *) &the_char, 1, 1, |
988 | &host_data, translit_none); | |
6c7a06a3 TT |
989 | |
990 | if (obstack_object_size (&host_data) == 1) | |
991 | { | |
992 | result = 1; | |
993 | *target_c = *(char *) obstack_base (&host_data); | |
994 | } | |
995 | ||
6c7a06a3 | 996 | return result; |
234b45d4 KB |
997 | } |
998 | ||
c906108c SS |
999 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1000 | containing a pointer to the string to parse. That pointer | |
1001 | should point to the character after the \. That pointer | |
1002 | is updated past the characters we use. The value of the | |
1003 | escape sequence is returned. | |
1004 | ||
1005 | A negative value means the sequence \ newline was seen, | |
1006 | which is supposed to be equivalent to nothing at all. | |
1007 | ||
1008 | If \ is followed by a null character, we return a negative | |
1009 | value and leave the string pointer pointing at the null character. | |
1010 | ||
1011 | If \ is followed by 000, we return 0 and leave the string pointer | |
1012 | after the zeros. A value of 0 does not mean end of string. */ | |
1013 | ||
1014 | int | |
d7561cbb | 1015 | parse_escape (struct gdbarch *gdbarch, const char **string_ptr) |
c906108c | 1016 | { |
581e13c1 | 1017 | int target_char = -2; /* Initialize to avoid GCC warnings. */ |
52f0bd74 | 1018 | int c = *(*string_ptr)++; |
e0627e85 | 1019 | |
6c7a06a3 TT |
1020 | switch (c) |
1021 | { | |
8731e58e AC |
1022 | case '\n': |
1023 | return -2; | |
1024 | case 0: | |
1025 | (*string_ptr)--; | |
1026 | return 0; | |
8731e58e AC |
1027 | |
1028 | case '0': | |
1029 | case '1': | |
1030 | case '2': | |
1031 | case '3': | |
1032 | case '4': | |
1033 | case '5': | |
1034 | case '6': | |
1035 | case '7': | |
1036 | { | |
6c7a06a3 | 1037 | int i = host_hex_value (c); |
aa1ee363 | 1038 | int count = 0; |
8731e58e AC |
1039 | while (++count < 3) |
1040 | { | |
5cb316ef | 1041 | c = (**string_ptr); |
6c7a06a3 | 1042 | if (isdigit (c) && c != '8' && c != '9') |
8731e58e | 1043 | { |
5cb316ef | 1044 | (*string_ptr)++; |
8731e58e | 1045 | i *= 8; |
6c7a06a3 | 1046 | i += host_hex_value (c); |
8731e58e AC |
1047 | } |
1048 | else | |
1049 | { | |
8731e58e AC |
1050 | break; |
1051 | } | |
1052 | } | |
1053 | return i; | |
1054 | } | |
6c7a06a3 TT |
1055 | |
1056 | case 'a': | |
1057 | c = '\a'; | |
1058 | break; | |
1059 | case 'b': | |
1060 | c = '\b'; | |
1061 | break; | |
1062 | case 'f': | |
1063 | c = '\f'; | |
1064 | break; | |
1065 | case 'n': | |
1066 | c = '\n'; | |
1067 | break; | |
1068 | case 'r': | |
1069 | c = '\r'; | |
1070 | break; | |
1071 | case 't': | |
1072 | c = '\t'; | |
1073 | break; | |
1074 | case 'v': | |
1075 | c = '\v'; | |
1076 | break; | |
1077 | ||
1078 | default: | |
1079 | break; | |
1080 | } | |
1081 | ||
f870a310 | 1082 | if (!host_char_to_target (gdbarch, c, &target_char)) |
3351ea09 JB |
1083 | error (_("The escape sequence `\\%c' is equivalent to plain `%c'," |
1084 | " which has no equivalent\nin the `%s' character set."), | |
905b671b | 1085 | c, c, target_charset (gdbarch)); |
6c7a06a3 | 1086 | return target_char; |
c906108c SS |
1087 | } |
1088 | \f | |
1089 | /* Print the character C on STREAM as part of the contents of a literal | |
1090 | string whose delimiter is QUOTER. Note that this routine should only | |
f9acce4a | 1091 | be called for printing things which are independent of the language |
6ef284bd SM |
1092 | of the program being debugged. |
1093 | ||
1094 | printchar will normally escape backslashes and instances of QUOTER. If | |
1095 | QUOTER is 0, printchar won't escape backslashes or any quoting character. | |
1096 | As a side effect, if you pass the backslash character as the QUOTER, | |
1097 | printchar will escape backslashes as usual, but not any other quoting | |
1098 | character. */ | |
c906108c | 1099 | |
43e526b9 | 1100 | static void |
7c4e78cf | 1101 | printchar (int c, do_fputc_ftype do_fputc, ui_file *stream, int quoter) |
c906108c | 1102 | { |
c906108c SS |
1103 | c &= 0xFF; /* Avoid sign bit follies */ |
1104 | ||
c5aa993b JM |
1105 | if (c < 0x20 || /* Low control chars */ |
1106 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1107 | (sevenbit_strings && c >= 0x80)) | |
1108 | { /* high order bit set */ | |
7c4e78cf SM |
1109 | do_fputc ('\\', stream); |
1110 | ||
c5aa993b JM |
1111 | switch (c) |
1112 | { | |
1113 | case '\n': | |
7c4e78cf | 1114 | do_fputc ('n', stream); |
c5aa993b JM |
1115 | break; |
1116 | case '\b': | |
7c4e78cf | 1117 | do_fputc ('b', stream); |
c5aa993b JM |
1118 | break; |
1119 | case '\t': | |
7c4e78cf | 1120 | do_fputc ('t', stream); |
c5aa993b JM |
1121 | break; |
1122 | case '\f': | |
7c4e78cf | 1123 | do_fputc ('f', stream); |
c5aa993b JM |
1124 | break; |
1125 | case '\r': | |
7c4e78cf | 1126 | do_fputc ('r', stream); |
c5aa993b JM |
1127 | break; |
1128 | case '\033': | |
7c4e78cf | 1129 | do_fputc ('e', stream); |
c5aa993b JM |
1130 | break; |
1131 | case '\007': | |
7c4e78cf | 1132 | do_fputc ('a', stream); |
c5aa993b JM |
1133 | break; |
1134 | default: | |
7c4e78cf SM |
1135 | { |
1136 | do_fputc ('0' + ((c >> 6) & 0x7), stream); | |
1137 | do_fputc ('0' + ((c >> 3) & 0x7), stream); | |
1138 | do_fputc ('0' + ((c >> 0) & 0x7), stream); | |
1139 | break; | |
1140 | } | |
c5aa993b JM |
1141 | } |
1142 | } | |
1143 | else | |
1144 | { | |
6ef284bd | 1145 | if (quoter != 0 && (c == '\\' || c == quoter)) |
7c4e78cf SM |
1146 | do_fputc ('\\', stream); |
1147 | do_fputc (c, stream); | |
c5aa993b | 1148 | } |
c906108c | 1149 | } |
43e526b9 JM |
1150 | |
1151 | /* Print the character C on STREAM as part of the contents of a | |
1152 | literal string whose delimiter is QUOTER. Note that these routines | |
1153 | should only be call for printing things which are independent of | |
581e13c1 | 1154 | the language of the program being debugged. */ |
43e526b9 JM |
1155 | |
1156 | void | |
fba45db2 | 1157 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1158 | { |
1159 | while (*str) | |
7c4e78cf | 1160 | printchar (*str++, fputc_filtered, stream, quoter); |
43e526b9 JM |
1161 | } |
1162 | ||
1163 | void | |
fba45db2 | 1164 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1165 | { |
1166 | while (*str) | |
7c4e78cf | 1167 | printchar (*str++, fputc_unfiltered, stream, quoter); |
43e526b9 JM |
1168 | } |
1169 | ||
0876f84a DJ |
1170 | void |
1171 | fputstrn_filtered (const char *str, int n, int quoter, | |
1172 | struct ui_file *stream) | |
1173 | { | |
7c4e78cf SM |
1174 | for (int i = 0; i < n; i++) |
1175 | printchar (str[i], fputc_filtered, stream, quoter); | |
0876f84a DJ |
1176 | } |
1177 | ||
43e526b9 | 1178 | void |
8731e58e | 1179 | fputstrn_unfiltered (const char *str, int n, int quoter, |
7c4e78cf | 1180 | do_fputc_ftype do_fputc, struct ui_file *stream) |
43e526b9 | 1181 | { |
7c4e78cf SM |
1182 | for (int i = 0; i < n; i++) |
1183 | printchar (str[i], do_fputc, stream, quoter); | |
43e526b9 | 1184 | } |
c906108c | 1185 | \f |
c5aa993b | 1186 | |
c906108c SS |
1187 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1188 | static unsigned int lines_per_page; | |
920d2a44 AC |
1189 | static void |
1190 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1191 | struct cmd_list_element *c, const char *value) | |
1192 | { | |
3e43a32a MS |
1193 | fprintf_filtered (file, |
1194 | _("Number of lines gdb thinks are in a page is %s.\n"), | |
920d2a44 AC |
1195 | value); |
1196 | } | |
eb0d3137 | 1197 | |
cbfbd72a | 1198 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1199 | static unsigned int chars_per_line; |
920d2a44 AC |
1200 | static void |
1201 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1202 | struct cmd_list_element *c, const char *value) | |
1203 | { | |
3e43a32a MS |
1204 | fprintf_filtered (file, |
1205 | _("Number of characters gdb thinks " | |
1206 | "are in a line is %s.\n"), | |
920d2a44 AC |
1207 | value); |
1208 | } | |
eb0d3137 | 1209 | |
c906108c SS |
1210 | /* Current count of lines printed on this page, chars on this line. */ |
1211 | static unsigned int lines_printed, chars_printed; | |
1212 | ||
eb6af809 TT |
1213 | /* True if pagination is disabled for just one command. */ |
1214 | ||
1215 | static bool pagination_disabled_for_command; | |
1216 | ||
c906108c SS |
1217 | /* Buffer and start column of buffered text, for doing smarter word- |
1218 | wrapping. When someone calls wrap_here(), we start buffering output | |
1219 | that comes through fputs_filtered(). If we see a newline, we just | |
1220 | spit it out and forget about the wrap_here(). If we see another | |
1221 | wrap_here(), we spit it out and remember the newer one. If we see | |
1222 | the end of the line, we spit out a newline, the indent, and then | |
1223 | the buffered output. */ | |
1224 | ||
c5603d50 | 1225 | static bool filter_initialized = false; |
c906108c | 1226 | |
c5603d50 TT |
1227 | /* Contains characters which are waiting to be output (they have |
1228 | already been counted in chars_printed). */ | |
1229 | static std::string wrap_buffer; | |
c906108c SS |
1230 | |
1231 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1232 | is non-zero. */ | |
d2c0eef4 | 1233 | static const char *wrap_indent; |
c906108c SS |
1234 | |
1235 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1236 | is not in effect. */ | |
1237 | static int wrap_column; | |
a0087920 TT |
1238 | |
1239 | /* The style applied at the time that wrap_here was called. */ | |
1240 | static ui_file_style wrap_style; | |
c906108c | 1241 | \f |
c5aa993b | 1242 | |
26c4b26f | 1243 | /* Initialize the number of lines per page and chars per line. */ |
eb0d3137 | 1244 | |
c906108c | 1245 | void |
fba45db2 | 1246 | init_page_info (void) |
c906108c | 1247 | { |
5da1313b JK |
1248 | if (batch_flag) |
1249 | { | |
1250 | lines_per_page = UINT_MAX; | |
1251 | chars_per_line = UINT_MAX; | |
1252 | } | |
1253 | else | |
c906108c | 1254 | #if defined(TUI) |
5ecb1806 | 1255 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1256 | #endif |
1257 | { | |
eb0d3137 | 1258 | int rows, cols; |
c906108c | 1259 | |
ec145965 EZ |
1260 | #if defined(__GO32__) |
1261 | rows = ScreenRows (); | |
1262 | cols = ScreenCols (); | |
1263 | lines_per_page = rows; | |
1264 | chars_per_line = cols; | |
1265 | #else | |
eb0d3137 MK |
1266 | /* Make sure Readline has initialized its terminal settings. */ |
1267 | rl_reset_terminal (NULL); | |
c906108c | 1268 | |
eb0d3137 MK |
1269 | /* Get the screen size from Readline. */ |
1270 | rl_get_screen_size (&rows, &cols); | |
1271 | lines_per_page = rows; | |
1272 | chars_per_line = cols; | |
c906108c | 1273 | |
1a66331e PM |
1274 | /* Readline should have fetched the termcap entry for us. |
1275 | Only try to use tgetnum function if rl_get_screen_size | |
1276 | did not return a useful value. */ | |
a121b7c1 | 1277 | if (((rows <= 0) && (tgetnum ((char *) "li") < 0)) |
e681cf3f EZ |
1278 | /* Also disable paging if inside Emacs. $EMACS was used |
1279 | before Emacs v25.1, $INSIDE_EMACS is used since then. */ | |
1280 | || getenv ("EMACS") || getenv ("INSIDE_EMACS")) | |
eb0d3137 | 1281 | { |
1a66331e PM |
1282 | /* The number of lines per page is not mentioned in the terminal |
1283 | description or EMACS evironment variable is set. This probably | |
1284 | means that paging is not useful, so disable paging. */ | |
eb0d3137 MK |
1285 | lines_per_page = UINT_MAX; |
1286 | } | |
c906108c | 1287 | |
c906108c | 1288 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1289 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1290 | lines_per_page = UINT_MAX; |
eb0d3137 | 1291 | #endif |
ec145965 | 1292 | } |
eb0d3137 | 1293 | |
24b73f8e PP |
1294 | /* We handle SIGWINCH ourselves. */ |
1295 | rl_catch_sigwinch = 0; | |
1296 | ||
eb0d3137 | 1297 | set_screen_size (); |
c5aa993b | 1298 | set_width (); |
c906108c SS |
1299 | } |
1300 | ||
2437fd32 GB |
1301 | /* Return nonzero if filtered printing is initialized. */ |
1302 | int | |
1303 | filtered_printing_initialized (void) | |
1304 | { | |
c5603d50 | 1305 | return filter_initialized; |
2437fd32 GB |
1306 | } |
1307 | ||
b95de2b7 TT |
1308 | set_batch_flag_and_restore_page_info::set_batch_flag_and_restore_page_info () |
1309 | : m_save_lines_per_page (lines_per_page), | |
1310 | m_save_chars_per_line (chars_per_line), | |
1311 | m_save_batch_flag (batch_flag) | |
5da1313b | 1312 | { |
b95de2b7 TT |
1313 | batch_flag = 1; |
1314 | init_page_info (); | |
5da1313b JK |
1315 | } |
1316 | ||
b95de2b7 | 1317 | set_batch_flag_and_restore_page_info::~set_batch_flag_and_restore_page_info () |
5da1313b | 1318 | { |
b95de2b7 TT |
1319 | batch_flag = m_save_batch_flag; |
1320 | chars_per_line = m_save_chars_per_line; | |
1321 | lines_per_page = m_save_lines_per_page; | |
5da1313b | 1322 | |
b95de2b7 TT |
1323 | set_screen_size (); |
1324 | set_width (); | |
5da1313b JK |
1325 | } |
1326 | ||
eb0d3137 MK |
1327 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1328 | ||
1329 | static void | |
1330 | set_screen_size (void) | |
1331 | { | |
1332 | int rows = lines_per_page; | |
1333 | int cols = chars_per_line; | |
1334 | ||
23031e31 SJ |
1335 | /* If we get 0 or negative ROWS or COLS, treat as "infinite" size. |
1336 | A negative number can be seen here with the "set width/height" | |
1337 | commands and either: | |
eb0d3137 | 1338 | |
23031e31 SJ |
1339 | - the user specified "unlimited", which maps to UINT_MAX, or |
1340 | - the user spedified some number between INT_MAX and UINT_MAX. | |
1341 | ||
1342 | Cap "infinity" to approximately sqrt(INT_MAX) so that we don't | |
1343 | overflow in rl_set_screen_size, which multiplies rows and columns | |
1344 | to compute the number of characters on the screen. */ | |
1345 | ||
1346 | const int sqrt_int_max = INT_MAX >> (sizeof (int) * 8 / 2); | |
1347 | ||
1348 | if (rows <= 0 || rows > sqrt_int_max) | |
8ed25214 PA |
1349 | { |
1350 | rows = sqrt_int_max; | |
1351 | lines_per_page = UINT_MAX; | |
1352 | } | |
23031e31 SJ |
1353 | |
1354 | if (cols <= 0 || cols > sqrt_int_max) | |
8ed25214 PA |
1355 | { |
1356 | cols = sqrt_int_max; | |
1357 | chars_per_line = UINT_MAX; | |
1358 | } | |
eb0d3137 MK |
1359 | |
1360 | /* Update Readline's idea of the terminal size. */ | |
1361 | rl_set_screen_size (rows, cols); | |
1362 | } | |
1363 | ||
c5603d50 | 1364 | /* Reinitialize WRAP_BUFFER. */ |
eb0d3137 | 1365 | |
c906108c | 1366 | static void |
fba45db2 | 1367 | set_width (void) |
c906108c SS |
1368 | { |
1369 | if (chars_per_line == 0) | |
c5aa993b | 1370 | init_page_info (); |
c906108c | 1371 | |
c5603d50 TT |
1372 | wrap_buffer.clear (); |
1373 | filter_initialized = true; | |
c906108c SS |
1374 | } |
1375 | ||
c5aa993b | 1376 | static void |
eb4c3f4a | 1377 | set_width_command (const char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1378 | { |
eb0d3137 | 1379 | set_screen_size (); |
c906108c SS |
1380 | set_width (); |
1381 | } | |
1382 | ||
eb0d3137 | 1383 | static void |
eb4c3f4a | 1384 | set_height_command (const char *args, int from_tty, struct cmd_list_element *c) |
eb0d3137 MK |
1385 | { |
1386 | set_screen_size (); | |
1387 | } | |
1388 | ||
d6e5e7f7 PP |
1389 | /* See utils.h. */ |
1390 | ||
1391 | void | |
1392 | set_screen_width_and_height (int width, int height) | |
1393 | { | |
1394 | lines_per_page = height; | |
1395 | chars_per_line = width; | |
1396 | ||
1397 | set_screen_size (); | |
1398 | set_width (); | |
1399 | } | |
1400 | ||
cbe56571 TT |
1401 | /* The currently applied style. */ |
1402 | ||
1403 | static ui_file_style applied_style; | |
1404 | ||
a0087920 TT |
1405 | /* Emit an ANSI style escape for STYLE. If STREAM is nullptr, emit to |
1406 | the wrap buffer; otherwise emit to STREAM. */ | |
cbe56571 TT |
1407 | |
1408 | static void | |
a0087920 TT |
1409 | emit_style_escape (const ui_file_style &style, |
1410 | struct ui_file *stream = nullptr) | |
cbe56571 | 1411 | { |
cbe56571 TT |
1412 | applied_style = style; |
1413 | ||
a0087920 TT |
1414 | if (stream == nullptr) |
1415 | wrap_buffer.append (style.to_ansi ()); | |
1416 | else | |
1417 | fputs_unfiltered (style.to_ansi ().c_str (), stream); | |
cbe56571 TT |
1418 | } |
1419 | ||
ef1dfa36 TT |
1420 | /* Set the current output style. This will affect future uses of the |
1421 | _filtered output functions. */ | |
1422 | ||
1423 | static void | |
1424 | set_output_style (struct ui_file *stream, const ui_file_style &style) | |
1425 | { | |
8a522c6c | 1426 | if (!stream->can_emit_style_escape ()) |
cbe56571 TT |
1427 | return; |
1428 | ||
046bebe1 | 1429 | /* Note that we may not pass STREAM here, when we want to emit to |
a0087920 | 1430 | the wrap buffer, not directly to STREAM. */ |
046bebe1 TT |
1431 | if (stream == gdb_stdout) |
1432 | stream = nullptr; | |
1433 | emit_style_escape (style, stream); | |
cbe56571 TT |
1434 | } |
1435 | ||
ef1dfa36 TT |
1436 | /* See utils.h. */ |
1437 | ||
1438 | void | |
1439 | reset_terminal_style (struct ui_file *stream) | |
1440 | { | |
8a522c6c | 1441 | if (stream->can_emit_style_escape ()) |
ef1dfa36 TT |
1442 | { |
1443 | /* Force the setting, regardless of what we think the setting | |
1444 | might already be. */ | |
a0087920 TT |
1445 | applied_style = ui_file_style (); |
1446 | wrap_buffer.append (applied_style.to_ansi ()); | |
ef1dfa36 TT |
1447 | } |
1448 | } | |
1449 | ||
c906108c | 1450 | /* Wait, so the user can read what's on the screen. Prompt the user |
720d2e96 PA |
1451 | to continue by pressing RETURN. 'q' is also provided because |
1452 | telling users what to do in the prompt is more user-friendly than | |
1453 | expecting them to think of Ctrl-C/SIGINT. */ | |
c906108c SS |
1454 | |
1455 | static void | |
fba45db2 | 1456 | prompt_for_continue (void) |
c906108c | 1457 | { |
c906108c | 1458 | char cont_prompt[120]; |
260c0b2a DE |
1459 | /* Used to add duration we waited for user to respond to |
1460 | prompt_for_continue_wait_time. */ | |
dcb07cfa PA |
1461 | using namespace std::chrono; |
1462 | steady_clock::time_point prompt_started = steady_clock::now (); | |
eb6af809 | 1463 | bool disable_pagination = pagination_disabled_for_command; |
c906108c | 1464 | |
cbe56571 | 1465 | /* Clear the current styling. */ |
8a522c6c | 1466 | if (gdb_stdout->can_emit_style_escape ()) |
a0087920 | 1467 | emit_style_escape (ui_file_style (), gdb_stdout); |
cbe56571 | 1468 | |
c906108c | 1469 | if (annotation_level > 1) |
a3f17187 | 1470 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
1471 | |
1472 | strcpy (cont_prompt, | |
eb6af809 TT |
1473 | "--Type <RET> for more, q to quit, " |
1474 | "c to continue without paging--"); | |
c906108c SS |
1475 | if (annotation_level > 1) |
1476 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1477 | ||
720d2e96 PA |
1478 | /* We must do this *before* we call gdb_readline_wrapper, else it |
1479 | will eventually call us -- thinking that we're trying to print | |
1480 | beyond the end of the screen. */ | |
c906108c SS |
1481 | reinitialize_more_filter (); |
1482 | ||
223ffa71 | 1483 | scoped_input_handler prepare_input; |
82584158 | 1484 | |
720d2e96 PA |
1485 | /* Call gdb_readline_wrapper, not readline, in order to keep an |
1486 | event loop running. */ | |
5aa89276 | 1487 | gdb::unique_xmalloc_ptr<char> ignore (gdb_readline_wrapper (cont_prompt)); |
c906108c | 1488 | |
260c0b2a | 1489 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
dcb07cfa | 1490 | prompt_for_continue_wait_time += steady_clock::now () - prompt_started; |
260c0b2a | 1491 | |
c906108c | 1492 | if (annotation_level > 1) |
a3f17187 | 1493 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c | 1494 | |
80dbc9fd | 1495 | if (ignore != NULL) |
c906108c | 1496 | { |
5aa89276 | 1497 | char *p = ignore.get (); |
5d502164 | 1498 | |
c906108c SS |
1499 | while (*p == ' ' || *p == '\t') |
1500 | ++p; | |
1501 | if (p[0] == 'q') | |
1690b616 SL |
1502 | /* Do not call quit here; there is no possibility of SIGINT. */ |
1503 | throw_quit ("Quit"); | |
eb6af809 TT |
1504 | if (p[0] == 'c') |
1505 | disable_pagination = true; | |
c906108c | 1506 | } |
c906108c SS |
1507 | |
1508 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1509 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1510 | reinitialize_more_filter (); | |
eb6af809 | 1511 | pagination_disabled_for_command = disable_pagination; |
c906108c | 1512 | |
581e13c1 | 1513 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ |
c906108c SS |
1514 | } |
1515 | ||
26c4b26f | 1516 | /* Initialize timer to keep track of how long we waited for the user. */ |
bd712aed DE |
1517 | |
1518 | void | |
1519 | reset_prompt_for_continue_wait_time (void) | |
1520 | { | |
dcb07cfa | 1521 | using namespace std::chrono; |
bd712aed | 1522 | |
dcb07cfa | 1523 | prompt_for_continue_wait_time = steady_clock::duration::zero (); |
bd712aed DE |
1524 | } |
1525 | ||
1526 | /* Fetch the cumulative time spent in prompt_for_continue. */ | |
1527 | ||
dcb07cfa PA |
1528 | std::chrono::steady_clock::duration |
1529 | get_prompt_for_continue_wait_time () | |
bd712aed DE |
1530 | { |
1531 | return prompt_for_continue_wait_time; | |
1532 | } | |
1533 | ||
c906108c SS |
1534 | /* Reinitialize filter; ie. tell it to reset to original values. */ |
1535 | ||
1536 | void | |
fba45db2 | 1537 | reinitialize_more_filter (void) |
c906108c SS |
1538 | { |
1539 | lines_printed = 0; | |
1540 | chars_printed = 0; | |
eb6af809 | 1541 | pagination_disabled_for_command = false; |
c906108c SS |
1542 | } |
1543 | ||
c5603d50 TT |
1544 | /* Flush the wrap buffer to STREAM, if necessary. */ |
1545 | ||
1546 | static void | |
1547 | flush_wrap_buffer (struct ui_file *stream) | |
1548 | { | |
a0087920 | 1549 | if (stream == gdb_stdout && !wrap_buffer.empty ()) |
c5603d50 TT |
1550 | { |
1551 | fputs_unfiltered (wrap_buffer.c_str (), stream); | |
1552 | wrap_buffer.clear (); | |
1553 | } | |
1554 | } | |
1555 | ||
c906108c | 1556 | /* Indicate that if the next sequence of characters overflows the line, |
581e13c1 | 1557 | a newline should be inserted here rather than when it hits the end. |
c906108c SS |
1558 | If INDENT is non-null, it is a string to be printed to indent the |
1559 | wrapped part on the next line. INDENT must remain accessible until | |
1560 | the next call to wrap_here() or until a newline is printed through | |
1561 | fputs_filtered(). | |
1562 | ||
1563 | If the line is already overfull, we immediately print a newline and | |
1564 | the indentation, and disable further wrapping. | |
1565 | ||
1566 | If we don't know the width of lines, but we know the page height, | |
1567 | we must not wrap words, but should still keep track of newlines | |
1568 | that were explicitly printed. | |
1569 | ||
1570 | INDENT should not contain tabs, as that will mess up the char count | |
1571 | on the next line. FIXME. | |
1572 | ||
1573 | This routine is guaranteed to force out any output which has been | |
1574 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1575 | used to force out output from the wrap_buffer. */ | |
1576 | ||
1577 | void | |
d2c0eef4 | 1578 | wrap_here (const char *indent) |
c906108c | 1579 | { |
581e13c1 | 1580 | /* This should have been allocated, but be paranoid anyway. */ |
c5603d50 | 1581 | if (!filter_initialized) |
3e43a32a MS |
1582 | internal_error (__FILE__, __LINE__, |
1583 | _("failed internal consistency check")); | |
c906108c | 1584 | |
c5603d50 | 1585 | flush_wrap_buffer (gdb_stdout); |
3e43a32a | 1586 | if (chars_per_line == UINT_MAX) /* No line overflow checking. */ |
c906108c SS |
1587 | { |
1588 | wrap_column = 0; | |
1589 | } | |
1590 | else if (chars_printed >= chars_per_line) | |
1591 | { | |
1592 | puts_filtered ("\n"); | |
1593 | if (indent != NULL) | |
1594 | puts_filtered (indent); | |
1595 | wrap_column = 0; | |
1596 | } | |
1597 | else | |
1598 | { | |
1599 | wrap_column = chars_printed; | |
1600 | if (indent == NULL) | |
1601 | wrap_indent = ""; | |
1602 | else | |
1603 | wrap_indent = indent; | |
a0087920 | 1604 | wrap_style = applied_style; |
c906108c SS |
1605 | } |
1606 | } | |
1607 | ||
4a351cef | 1608 | /* Print input string to gdb_stdout, filtered, with wrap, |
581e13c1 | 1609 | arranging strings in columns of n chars. String can be |
4a351cef AF |
1610 | right or left justified in the column. Never prints |
1611 | trailing spaces. String should never be longer than | |
1612 | width. FIXME: this could be useful for the EXAMINE | |
581e13c1 | 1613 | command, which currently doesn't tabulate very well. */ |
4a351cef AF |
1614 | |
1615 | void | |
1616 | puts_filtered_tabular (char *string, int width, int right) | |
1617 | { | |
1618 | int spaces = 0; | |
1619 | int stringlen; | |
1620 | char *spacebuf; | |
1621 | ||
1622 | gdb_assert (chars_per_line > 0); | |
1623 | if (chars_per_line == UINT_MAX) | |
1624 | { | |
1625 | fputs_filtered (string, gdb_stdout); | |
1626 | fputs_filtered ("\n", gdb_stdout); | |
1627 | return; | |
1628 | } | |
1629 | ||
1630 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
1631 | fputs_filtered ("\n", gdb_stdout); | |
1632 | ||
1633 | if (width >= chars_per_line) | |
1634 | width = chars_per_line - 1; | |
1635 | ||
1636 | stringlen = strlen (string); | |
1637 | ||
1638 | if (chars_printed > 0) | |
1639 | spaces = width - (chars_printed - 1) % width - 1; | |
1640 | if (right) | |
1641 | spaces += width - stringlen; | |
1642 | ||
224c3ddb | 1643 | spacebuf = (char *) alloca (spaces + 1); |
4a351cef AF |
1644 | spacebuf[spaces] = '\0'; |
1645 | while (spaces--) | |
1646 | spacebuf[spaces] = ' '; | |
1647 | ||
1648 | fputs_filtered (spacebuf, gdb_stdout); | |
1649 | fputs_filtered (string, gdb_stdout); | |
1650 | } | |
1651 | ||
1652 | ||
c906108c | 1653 | /* Ensure that whatever gets printed next, using the filtered output |
581e13c1 | 1654 | commands, starts at the beginning of the line. I.e. if there is |
c906108c | 1655 | any pending output for the current line, flush it and start a new |
581e13c1 | 1656 | line. Otherwise do nothing. */ |
c906108c SS |
1657 | |
1658 | void | |
fba45db2 | 1659 | begin_line (void) |
c906108c SS |
1660 | { |
1661 | if (chars_printed > 0) | |
1662 | { | |
1663 | puts_filtered ("\n"); | |
1664 | } | |
1665 | } | |
1666 | ||
ac9a91a7 | 1667 | |
c906108c SS |
1668 | /* Like fputs but if FILTER is true, pause after every screenful. |
1669 | ||
1670 | Regardless of FILTER can wrap at points other than the final | |
1671 | character of a line. | |
1672 | ||
1673 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
1674 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
1675 | anything. | |
1676 | ||
1677 | Note that a longjmp to top level may occur in this routine (only if | |
1678 | FILTER is true) (since prompt_for_continue may do so) so this | |
1679 | routine should not be called when cleanups are not in place. */ | |
1680 | ||
1681 | static void | |
fba45db2 KB |
1682 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
1683 | int filter) | |
c906108c SS |
1684 | { |
1685 | const char *lineptr; | |
1686 | ||
1687 | if (linebuffer == 0) | |
1688 | return; | |
1689 | ||
1690 | /* Don't do any filtering if it is disabled. */ | |
390a8aca | 1691 | if (stream != gdb_stdout |
b2e7f004 | 1692 | || !pagination_enabled |
eb6af809 | 1693 | || pagination_disabled_for_command |
b2e7f004 | 1694 | || batch_flag |
390a8aca | 1695 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) |
58dadb1b | 1696 | || top_level_interpreter () == NULL |
29f94340 | 1697 | || top_level_interpreter ()->interp_ui_out ()->is_mi_like_p ()) |
c906108c | 1698 | { |
c5603d50 | 1699 | flush_wrap_buffer (stream); |
c906108c SS |
1700 | fputs_unfiltered (linebuffer, stream); |
1701 | return; | |
1702 | } | |
1703 | ||
a0087920 TT |
1704 | auto buffer_clearer |
1705 | = make_scope_exit ([&] () | |
1706 | { | |
1707 | wrap_buffer.clear (); | |
1708 | wrap_column = 0; | |
1709 | wrap_indent = ""; | |
1710 | }); | |
1711 | ||
c906108c SS |
1712 | /* Go through and output each character. Show line extension |
1713 | when this is necessary; prompt user for new page when this is | |
1714 | necessary. */ | |
c5aa993b | 1715 | |
c906108c SS |
1716 | lineptr = linebuffer; |
1717 | while (*lineptr) | |
1718 | { | |
eb6af809 TT |
1719 | /* Possible new page. Note that PAGINATION_DISABLED_FOR_COMMAND |
1720 | might be set during this loop, so we must continue to check | |
1721 | it here. */ | |
1722 | if (filter && (lines_printed >= lines_per_page - 1) | |
1723 | && !pagination_disabled_for_command) | |
c906108c SS |
1724 | prompt_for_continue (); |
1725 | ||
1726 | while (*lineptr && *lineptr != '\n') | |
1727 | { | |
a0087920 TT |
1728 | int skip_bytes; |
1729 | ||
c906108c SS |
1730 | /* Print a single line. */ |
1731 | if (*lineptr == '\t') | |
1732 | { | |
c5603d50 | 1733 | wrap_buffer.push_back ('\t'); |
c906108c SS |
1734 | /* Shifting right by 3 produces the number of tab stops |
1735 | we have already passed, and then adding one and | |
c5aa993b | 1736 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
1737 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
1738 | lineptr++; | |
1739 | } | |
a0087920 TT |
1740 | else if (*lineptr == '\033' |
1741 | && skip_ansi_escape (lineptr, &skip_bytes)) | |
1742 | { | |
1743 | wrap_buffer.append (lineptr, skip_bytes); | |
1744 | /* Note that we don't consider this a character, so we | |
1745 | don't increment chars_printed here. */ | |
1746 | lineptr += skip_bytes; | |
1747 | } | |
c906108c SS |
1748 | else |
1749 | { | |
c5603d50 | 1750 | wrap_buffer.push_back (*lineptr); |
c906108c SS |
1751 | chars_printed++; |
1752 | lineptr++; | |
1753 | } | |
c5aa993b | 1754 | |
c906108c SS |
1755 | if (chars_printed >= chars_per_line) |
1756 | { | |
1757 | unsigned int save_chars = chars_printed; | |
1758 | ||
99f20f08 TT |
1759 | /* If we change the style, below, we'll want to reset it |
1760 | before continuing to print. If there is no wrap | |
1761 | column, then we'll only reset the style if the pager | |
1762 | prompt is given; and to avoid emitting style | |
1763 | sequences in the middle of a run of text, we track | |
1764 | this as well. */ | |
1765 | ui_file_style save_style; | |
1766 | bool did_paginate = false; | |
1767 | ||
c906108c SS |
1768 | chars_printed = 0; |
1769 | lines_printed++; | |
c906108c | 1770 | if (wrap_column) |
cbe56571 | 1771 | { |
99f20f08 | 1772 | save_style = wrap_style; |
8a522c6c | 1773 | if (stream->can_emit_style_escape ()) |
a0087920 TT |
1774 | emit_style_escape (ui_file_style (), stream); |
1775 | /* If we aren't actually wrapping, don't output | |
1776 | newline -- if chars_per_line is right, we | |
1777 | probably just overflowed anyway; if it's wrong, | |
1778 | let us keep going. */ | |
cbe56571 TT |
1779 | fputc_unfiltered ('\n', stream); |
1780 | } | |
a0087920 | 1781 | else |
99f20f08 TT |
1782 | { |
1783 | save_style = applied_style; | |
1784 | flush_wrap_buffer (stream); | |
1785 | } | |
c906108c | 1786 | |
eb6af809 TT |
1787 | /* Possible new page. Note that |
1788 | PAGINATION_DISABLED_FOR_COMMAND might be set during | |
1789 | this loop, so we must continue to check it here. */ | |
1790 | if (lines_printed >= lines_per_page - 1 | |
1791 | && !pagination_disabled_for_command) | |
99f20f08 TT |
1792 | { |
1793 | prompt_for_continue (); | |
1794 | did_paginate = true; | |
1795 | } | |
c906108c | 1796 | |
581e13c1 | 1797 | /* Now output indentation and wrapped string. */ |
c906108c SS |
1798 | if (wrap_column) |
1799 | { | |
1800 | fputs_unfiltered (wrap_indent, stream); | |
8a522c6c | 1801 | if (stream->can_emit_style_escape ()) |
99f20f08 | 1802 | emit_style_escape (save_style, stream); |
c906108c SS |
1803 | /* FIXME, this strlen is what prevents wrap_indent from |
1804 | containing tabs. However, if we recurse to print it | |
1805 | and count its chars, we risk trouble if wrap_indent is | |
581e13c1 | 1806 | longer than (the user settable) chars_per_line. |
c906108c SS |
1807 | Note also that this can set chars_printed > chars_per_line |
1808 | if we are printing a long string. */ | |
1809 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 1810 | + (save_chars - wrap_column); |
c5aa993b JM |
1811 | wrap_column = 0; /* And disable fancy wrap */ |
1812 | } | |
ca1df239 | 1813 | else if (did_paginate && stream->can_emit_style_escape ()) |
99f20f08 | 1814 | emit_style_escape (save_style, stream); |
c906108c SS |
1815 | } |
1816 | } | |
1817 | ||
1818 | if (*lineptr == '\n') | |
1819 | { | |
1820 | chars_printed = 0; | |
3e43a32a MS |
1821 | wrap_here ((char *) 0); /* Spit out chars, cancel |
1822 | further wraps. */ | |
c906108c SS |
1823 | lines_printed++; |
1824 | fputc_unfiltered ('\n', stream); | |
1825 | lineptr++; | |
1826 | } | |
1827 | } | |
a0087920 TT |
1828 | |
1829 | buffer_clearer.release (); | |
c906108c SS |
1830 | } |
1831 | ||
1832 | void | |
fba45db2 | 1833 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
1834 | { |
1835 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1836 | } | |
1837 | ||
cbe56571 TT |
1838 | /* See utils.h. */ |
1839 | ||
1840 | void | |
1841 | fputs_styled (const char *linebuffer, const ui_file_style &style, | |
1842 | struct ui_file *stream) | |
1843 | { | |
a0087920 TT |
1844 | /* This just makes it so we emit somewhat fewer escape |
1845 | sequences. */ | |
1846 | if (style.is_default ()) | |
1847 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1848 | else | |
1849 | { | |
1850 | set_output_style (stream, style); | |
1851 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1852 | set_output_style (stream, ui_file_style ()); | |
1853 | } | |
cbe56571 TT |
1854 | } |
1855 | ||
9303eb2f PW |
1856 | /* See utils.h. */ |
1857 | ||
1858 | void | |
1859 | fputs_highlighted (const char *str, const compiled_regex &highlight, | |
1860 | struct ui_file *stream) | |
1861 | { | |
1862 | regmatch_t pmatch; | |
1863 | ||
1864 | while (*str && highlight.exec (str, 1, &pmatch, 0) == 0) | |
1865 | { | |
1866 | size_t n_highlight = pmatch.rm_eo - pmatch.rm_so; | |
1867 | ||
1868 | /* Output the part before pmatch with current style. */ | |
1869 | while (pmatch.rm_so > 0) | |
1870 | { | |
1871 | fputc_filtered (*str, stream); | |
1872 | pmatch.rm_so--; | |
1873 | str++; | |
1874 | } | |
1875 | ||
1876 | /* Output pmatch with the highlight style. */ | |
1877 | set_output_style (stream, highlight_style.style ()); | |
1878 | while (n_highlight > 0) | |
1879 | { | |
1880 | fputc_filtered (*str, stream); | |
1881 | n_highlight--; | |
1882 | str++; | |
1883 | } | |
1884 | set_output_style (stream, ui_file_style ()); | |
1885 | } | |
1886 | ||
1887 | /* Output the trailing part of STR not matching HIGHLIGHT. */ | |
1888 | if (*str) | |
1889 | fputs_filtered (str, stream); | |
1890 | } | |
1891 | ||
c906108c | 1892 | int |
fba45db2 | 1893 | putchar_unfiltered (int c) |
c906108c | 1894 | { |
11cf8741 | 1895 | char buf = c; |
e0627e85 | 1896 | |
d9fcf2fb | 1897 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
1898 | return c; |
1899 | } | |
1900 | ||
d1f4cff8 AC |
1901 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
1902 | May return nonlocally. */ | |
1903 | ||
1904 | int | |
1905 | putchar_filtered (int c) | |
1906 | { | |
1907 | return fputc_filtered (c, gdb_stdout); | |
1908 | } | |
1909 | ||
c906108c | 1910 | int |
fba45db2 | 1911 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 1912 | { |
11cf8741 | 1913 | char buf = c; |
e0627e85 | 1914 | |
d9fcf2fb | 1915 | ui_file_write (stream, &buf, 1); |
c906108c SS |
1916 | return c; |
1917 | } | |
1918 | ||
1919 | int | |
fba45db2 | 1920 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
1921 | { |
1922 | char buf[2]; | |
1923 | ||
1924 | buf[0] = c; | |
1925 | buf[1] = 0; | |
1926 | fputs_filtered (buf, stream); | |
1927 | return c; | |
1928 | } | |
1929 | ||
1930 | /* puts_debug is like fputs_unfiltered, except it prints special | |
1931 | characters in printable fashion. */ | |
1932 | ||
1933 | void | |
fba45db2 | 1934 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
1935 | { |
1936 | int ch; | |
1937 | ||
1938 | /* Print prefix and suffix after each line. */ | |
1939 | static int new_line = 1; | |
1940 | static int return_p = 0; | |
a121b7c1 PA |
1941 | static const char *prev_prefix = ""; |
1942 | static const char *prev_suffix = ""; | |
c906108c SS |
1943 | |
1944 | if (*string == '\n') | |
1945 | return_p = 0; | |
1946 | ||
1947 | /* If the prefix is changing, print the previous suffix, a new line, | |
1948 | and the new prefix. */ | |
c5aa993b | 1949 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 1950 | { |
9846de1b JM |
1951 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
1952 | fputs_unfiltered ("\n", gdb_stdlog); | |
1953 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
1954 | } |
1955 | ||
1956 | /* Print prefix if we printed a newline during the previous call. */ | |
1957 | if (new_line) | |
1958 | { | |
1959 | new_line = 0; | |
9846de1b | 1960 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
1961 | } |
1962 | ||
1963 | prev_prefix = prefix; | |
1964 | prev_suffix = suffix; | |
1965 | ||
1966 | /* Output characters in a printable format. */ | |
1967 | while ((ch = *string++) != '\0') | |
1968 | { | |
1969 | switch (ch) | |
c5aa993b | 1970 | { |
c906108c SS |
1971 | default: |
1972 | if (isprint (ch)) | |
9846de1b | 1973 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
1974 | |
1975 | else | |
9846de1b | 1976 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
1977 | break; |
1978 | ||
c5aa993b JM |
1979 | case '\\': |
1980 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
1981 | break; | |
1982 | case '\b': | |
1983 | fputs_unfiltered ("\\b", gdb_stdlog); | |
1984 | break; | |
1985 | case '\f': | |
1986 | fputs_unfiltered ("\\f", gdb_stdlog); | |
1987 | break; | |
1988 | case '\n': | |
1989 | new_line = 1; | |
1990 | fputs_unfiltered ("\\n", gdb_stdlog); | |
1991 | break; | |
1992 | case '\r': | |
1993 | fputs_unfiltered ("\\r", gdb_stdlog); | |
1994 | break; | |
1995 | case '\t': | |
1996 | fputs_unfiltered ("\\t", gdb_stdlog); | |
1997 | break; | |
1998 | case '\v': | |
1999 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2000 | break; | |
2001 | } | |
c906108c SS |
2002 | |
2003 | return_p = ch == '\r'; | |
2004 | } | |
2005 | ||
2006 | /* Print suffix if we printed a newline. */ | |
2007 | if (new_line) | |
2008 | { | |
9846de1b JM |
2009 | fputs_unfiltered (suffix, gdb_stdlog); |
2010 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2011 | } |
2012 | } | |
2013 | ||
2014 | ||
2015 | /* Print a variable number of ARGS using format FORMAT. If this | |
2016 | information is going to put the amount written (since the last call | |
2017 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2018 | call prompt_for_continue to get the users permision to continue. | |
2019 | ||
2020 | Unlike fprintf, this function does not return a value. | |
2021 | ||
2022 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2023 | fprintf (takes a stream to write on), and printf (the usual). | |
2024 | ||
2025 | Note also that a longjmp to top level may occur in this routine | |
2026 | (since prompt_for_continue may do so) so this routine should not be | |
2027 | called when cleanups are not in place. */ | |
2028 | ||
2029 | static void | |
fba45db2 KB |
2030 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2031 | va_list args, int filter) | |
c906108c | 2032 | { |
200aa7b1 TT |
2033 | std::string linebuffer = string_vprintf (format, args); |
2034 | fputs_maybe_filtered (linebuffer.c_str (), stream, filter); | |
c906108c SS |
2035 | } |
2036 | ||
2037 | ||
2038 | void | |
fba45db2 | 2039 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2040 | { |
2041 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2042 | } | |
2043 | ||
2044 | void | |
fba45db2 | 2045 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c | 2046 | { |
200aa7b1 | 2047 | std::string linebuffer = string_vprintf (format, args); |
75feb17d DJ |
2048 | if (debug_timestamp && stream == gdb_stdlog) |
2049 | { | |
dcb07cfa | 2050 | using namespace std::chrono; |
6e5abd65 | 2051 | int len, need_nl; |
75feb17d | 2052 | |
dcb07cfa PA |
2053 | steady_clock::time_point now = steady_clock::now (); |
2054 | seconds s = duration_cast<seconds> (now.time_since_epoch ()); | |
2055 | microseconds us = duration_cast<microseconds> (now.time_since_epoch () - s); | |
6e5abd65 | 2056 | |
200aa7b1 | 2057 | len = linebuffer.size (); |
6e5abd65 PA |
2058 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); |
2059 | ||
dcb07cfa PA |
2060 | std::string timestamp = string_printf ("%ld.%06ld %s%s", |
2061 | (long) s.count (), | |
2062 | (long) us.count (), | |
200aa7b1 TT |
2063 | linebuffer.c_str (), |
2064 | need_nl ? "\n": ""); | |
dcb07cfa | 2065 | fputs_unfiltered (timestamp.c_str (), stream); |
75feb17d | 2066 | } |
6e5abd65 | 2067 | else |
200aa7b1 | 2068 | fputs_unfiltered (linebuffer.c_str (), stream); |
c906108c SS |
2069 | } |
2070 | ||
2071 | void | |
fba45db2 | 2072 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2073 | { |
2074 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2075 | } | |
2076 | ||
2077 | void | |
fba45db2 | 2078 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2079 | { |
2080 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2081 | } | |
2082 | ||
c906108c | 2083 | void |
8731e58e | 2084 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2085 | { |
2086 | va_list args; | |
e0627e85 | 2087 | |
c906108c | 2088 | va_start (args, format); |
c906108c SS |
2089 | vfprintf_filtered (stream, format, args); |
2090 | va_end (args); | |
2091 | } | |
2092 | ||
c906108c | 2093 | void |
8731e58e | 2094 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2095 | { |
2096 | va_list args; | |
e0627e85 | 2097 | |
c906108c | 2098 | va_start (args, format); |
c906108c SS |
2099 | vfprintf_unfiltered (stream, format, args); |
2100 | va_end (args); | |
2101 | } | |
2102 | ||
2103 | /* Like fprintf_filtered, but prints its result indented. | |
2104 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2105 | ||
c906108c | 2106 | void |
8731e58e AC |
2107 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2108 | ...) | |
c906108c SS |
2109 | { |
2110 | va_list args; | |
e0627e85 | 2111 | |
c906108c | 2112 | va_start (args, format); |
c906108c SS |
2113 | print_spaces_filtered (spaces, stream); |
2114 | ||
2115 | vfprintf_filtered (stream, format, args); | |
2116 | va_end (args); | |
2117 | } | |
2118 | ||
cbe56571 TT |
2119 | /* See utils.h. */ |
2120 | ||
2121 | void | |
2122 | fprintf_styled (struct ui_file *stream, const ui_file_style &style, | |
2123 | const char *format, ...) | |
2124 | { | |
2125 | va_list args; | |
2126 | ||
2127 | set_output_style (stream, style); | |
2128 | va_start (args, format); | |
2129 | vfprintf_filtered (stream, format, args); | |
2130 | va_end (args); | |
2131 | set_output_style (stream, ui_file_style ()); | |
2132 | } | |
2133 | ||
c906108c | 2134 | |
c906108c | 2135 | void |
8731e58e | 2136 | printf_filtered (const char *format, ...) |
c906108c SS |
2137 | { |
2138 | va_list args; | |
e0627e85 | 2139 | |
c906108c | 2140 | va_start (args, format); |
c906108c SS |
2141 | vfprintf_filtered (gdb_stdout, format, args); |
2142 | va_end (args); | |
2143 | } | |
2144 | ||
2145 | ||
c906108c | 2146 | void |
8731e58e | 2147 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2148 | { |
2149 | va_list args; | |
e0627e85 | 2150 | |
c906108c | 2151 | va_start (args, format); |
c906108c SS |
2152 | vfprintf_unfiltered (gdb_stdout, format, args); |
2153 | va_end (args); | |
2154 | } | |
2155 | ||
2156 | /* Like printf_filtered, but prints it's result indented. | |
2157 | Called as printfi_filtered (spaces, format, ...); */ | |
2158 | ||
c906108c | 2159 | void |
8731e58e | 2160 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2161 | { |
2162 | va_list args; | |
e0627e85 | 2163 | |
c906108c | 2164 | va_start (args, format); |
c906108c SS |
2165 | print_spaces_filtered (spaces, gdb_stdout); |
2166 | vfprintf_filtered (gdb_stdout, format, args); | |
2167 | va_end (args); | |
2168 | } | |
2169 | ||
2170 | /* Easy -- but watch out! | |
2171 | ||
2172 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2173 | This one doesn't, and had better not! */ | |
2174 | ||
2175 | void | |
fba45db2 | 2176 | puts_filtered (const char *string) |
c906108c SS |
2177 | { |
2178 | fputs_filtered (string, gdb_stdout); | |
2179 | } | |
2180 | ||
2181 | void | |
fba45db2 | 2182 | puts_unfiltered (const char *string) |
c906108c SS |
2183 | { |
2184 | fputs_unfiltered (string, gdb_stdout); | |
2185 | } | |
2186 | ||
2187 | /* Return a pointer to N spaces and a null. The pointer is good | |
2188 | until the next call to here. */ | |
2189 | char * | |
fba45db2 | 2190 | n_spaces (int n) |
c906108c | 2191 | { |
392a587b JM |
2192 | char *t; |
2193 | static char *spaces = 0; | |
2194 | static int max_spaces = -1; | |
c906108c SS |
2195 | |
2196 | if (n > max_spaces) | |
2197 | { | |
2198 | if (spaces) | |
b8c9b27d | 2199 | xfree (spaces); |
c5aa993b JM |
2200 | spaces = (char *) xmalloc (n + 1); |
2201 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2202 | *--t = ' '; |
2203 | spaces[n] = '\0'; | |
2204 | max_spaces = n; | |
2205 | } | |
2206 | ||
2207 | return spaces + max_spaces - n; | |
2208 | } | |
2209 | ||
2210 | /* Print N spaces. */ | |
2211 | void | |
fba45db2 | 2212 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2213 | { |
2214 | fputs_filtered (n_spaces (n), stream); | |
2215 | } | |
2216 | \f | |
4a351cef | 2217 | /* C++/ObjC demangler stuff. */ |
c906108c | 2218 | |
389e51db AC |
2219 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2220 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2221 | If the name is not mangled, or the language for the name is unknown, or | |
581e13c1 | 2222 | demangling is off, the name is printed in its "raw" form. */ |
c906108c SS |
2223 | |
2224 | void | |
0d5cff50 | 2225 | fprintf_symbol_filtered (struct ui_file *stream, const char *name, |
8731e58e | 2226 | enum language lang, int arg_mode) |
c906108c SS |
2227 | { |
2228 | char *demangled; | |
2229 | ||
2230 | if (name != NULL) | |
2231 | { | |
2232 | /* If user wants to see raw output, no problem. */ | |
2233 | if (!demangle) | |
2234 | { | |
2235 | fputs_filtered (name, stream); | |
2236 | } | |
2237 | else | |
2238 | { | |
9a3d7dfd | 2239 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2240 | fputs_filtered (demangled ? demangled : name, stream); |
2241 | if (demangled != NULL) | |
2242 | { | |
b8c9b27d | 2243 | xfree (demangled); |
c906108c SS |
2244 | } |
2245 | } | |
2246 | } | |
2247 | } | |
2248 | ||
0662b6a7 PA |
2249 | /* True if CH is a character that can be part of a symbol name. I.e., |
2250 | either a number, a letter, or a '_'. */ | |
2251 | ||
2252 | static bool | |
2253 | valid_identifier_name_char (int ch) | |
2254 | { | |
2255 | return (isalnum (ch) || ch == '_'); | |
2256 | } | |
2257 | ||
2258 | /* Skip to end of token, or to END, whatever comes first. Input is | |
2259 | assumed to be a C++ operator name. */ | |
2260 | ||
2261 | static const char * | |
2262 | cp_skip_operator_token (const char *token, const char *end) | |
2263 | { | |
2264 | const char *p = token; | |
2265 | while (p != end && !isspace (*p) && *p != '(') | |
2266 | { | |
2267 | if (valid_identifier_name_char (*p)) | |
2268 | { | |
2269 | while (p != end && valid_identifier_name_char (*p)) | |
2270 | p++; | |
2271 | return p; | |
2272 | } | |
2273 | else | |
2274 | { | |
2275 | /* Note, ordered such that among ops that share a prefix, | |
2276 | longer comes first. This is so that the loop below can | |
2277 | bail on first match. */ | |
2278 | static const char *ops[] = | |
2279 | { | |
2280 | "[", | |
2281 | "]", | |
2282 | "~", | |
2283 | ",", | |
2284 | "-=", "--", "->", "-", | |
2285 | "+=", "++", "+", | |
2286 | "*=", "*", | |
2287 | "/=", "/", | |
2288 | "%=", "%", | |
2289 | "|=", "||", "|", | |
2290 | "&=", "&&", "&", | |
2291 | "^=", "^", | |
2292 | "!=", "!", | |
2293 | "<<=", "<=", "<<", "<", | |
2294 | ">>=", ">=", ">>", ">", | |
2295 | "==", "=", | |
2296 | }; | |
2297 | ||
2298 | for (const char *op : ops) | |
2299 | { | |
2300 | size_t oplen = strlen (op); | |
2301 | size_t lencmp = std::min<size_t> (oplen, end - p); | |
2302 | ||
2303 | if (strncmp (p, op, lencmp) == 0) | |
2304 | return p + lencmp; | |
2305 | } | |
2306 | /* Some unidentified character. Return it. */ | |
2307 | return p + 1; | |
2308 | } | |
2309 | } | |
2310 | ||
2311 | return p; | |
2312 | } | |
2313 | ||
2314 | /* Advance STRING1/STRING2 past whitespace. */ | |
2315 | ||
2316 | static void | |
2317 | skip_ws (const char *&string1, const char *&string2, const char *end_str2) | |
2318 | { | |
2319 | while (isspace (*string1)) | |
2320 | string1++; | |
2321 | while (string2 < end_str2 && isspace (*string2)) | |
2322 | string2++; | |
2323 | } | |
2324 | ||
2325 | /* True if STRING points at the start of a C++ operator name. START | |
2326 | is the start of the string that STRING points to, hence when | |
2327 | reading backwards, we must not read any character before START. */ | |
2328 | ||
2329 | static bool | |
2330 | cp_is_operator (const char *string, const char *start) | |
2331 | { | |
2332 | return ((string == start | |
2333 | || !valid_identifier_name_char (string[-1])) | |
2334 | && strncmp (string, CP_OPERATOR_STR, CP_OPERATOR_LEN) == 0 | |
2335 | && !valid_identifier_name_char (string[CP_OPERATOR_LEN])); | |
2336 | } | |
2337 | ||
bd69330d PA |
2338 | /* If *NAME points at an ABI tag, skip it and return true. Otherwise |
2339 | leave *NAME unmodified and return false. (see GCC's abi_tag | |
2340 | attribute), such names are demangled as e.g., | |
2341 | "function[abi:cxx11]()". */ | |
2342 | ||
2343 | static bool | |
2344 | skip_abi_tag (const char **name) | |
2345 | { | |
2346 | const char *p = *name; | |
2347 | ||
2348 | if (startswith (p, "[abi:")) | |
2349 | { | |
2350 | p += 5; | |
2351 | ||
2352 | while (valid_identifier_name_char (*p)) | |
2353 | p++; | |
2354 | ||
2355 | if (*p == ']') | |
2356 | { | |
2357 | p++; | |
2358 | *name = p; | |
2359 | return true; | |
2360 | } | |
2361 | } | |
2362 | return false; | |
2363 | } | |
2364 | ||
b5ec771e | 2365 | /* See utils.h. */ |
1d550c82 | 2366 | |
b5ec771e | 2367 | int |
1d550c82 | 2368 | strncmp_iw_with_mode (const char *string1, const char *string2, |
0662b6a7 | 2369 | size_t string2_len, strncmp_iw_mode mode, |
bd69330d PA |
2370 | enum language language, |
2371 | completion_match_for_lcd *match_for_lcd) | |
c906108c | 2372 | { |
0662b6a7 | 2373 | const char *string1_start = string1; |
1d550c82 | 2374 | const char *end_str2 = string2 + string2_len; |
0662b6a7 PA |
2375 | bool skip_spaces = true; |
2376 | bool have_colon_op = (language == language_cplus | |
2377 | || language == language_rust | |
2378 | || language == language_fortran); | |
1d550c82 PA |
2379 | |
2380 | while (1) | |
c906108c | 2381 | { |
0662b6a7 PA |
2382 | if (skip_spaces |
2383 | || ((isspace (*string1) && !valid_identifier_name_char (*string2)) | |
2384 | || (isspace (*string2) && !valid_identifier_name_char (*string1)))) | |
2385 | { | |
2386 | skip_ws (string1, string2, end_str2); | |
2387 | skip_spaces = false; | |
2388 | } | |
2389 | ||
bd69330d PA |
2390 | /* Skip [abi:cxx11] tags in the symbol name if the lookup name |
2391 | doesn't include them. E.g.: | |
2392 | ||
2393 | string1: function[abi:cxx1](int) | |
2394 | string2: function | |
2395 | ||
2396 | string1: function[abi:cxx1](int) | |
2397 | string2: function(int) | |
2398 | ||
2399 | string1: Struct[abi:cxx1]::function() | |
2400 | string2: Struct::function() | |
2401 | ||
2402 | string1: function(Struct[abi:cxx1], int) | |
2403 | string2: function(Struct, int) | |
2404 | */ | |
2405 | if (string2 == end_str2 | |
2406 | || (*string2 != '[' && !valid_identifier_name_char (*string2))) | |
2407 | { | |
2408 | const char *abi_start = string1; | |
2409 | ||
2410 | /* There can be more than one tag. */ | |
2411 | while (*string1 == '[' && skip_abi_tag (&string1)) | |
2412 | ; | |
2413 | ||
2414 | if (match_for_lcd != NULL && abi_start != string1) | |
2415 | match_for_lcd->mark_ignored_range (abi_start, string1); | |
2416 | ||
2417 | while (isspace (*string1)) | |
2418 | string1++; | |
2419 | } | |
2420 | ||
1d550c82 PA |
2421 | if (*string1 == '\0' || string2 == end_str2) |
2422 | break; | |
0662b6a7 PA |
2423 | |
2424 | /* Handle the :: operator. */ | |
2425 | if (have_colon_op && string1[0] == ':' && string1[1] == ':') | |
2426 | { | |
2427 | if (*string2 != ':') | |
2428 | return 1; | |
2429 | ||
2430 | string1++; | |
2431 | string2++; | |
2432 | ||
2433 | if (string2 == end_str2) | |
2434 | break; | |
2435 | ||
2436 | if (*string2 != ':') | |
2437 | return 1; | |
2438 | ||
2439 | string1++; | |
2440 | string2++; | |
2441 | ||
2442 | while (isspace (*string1)) | |
2443 | string1++; | |
2444 | while (string2 < end_str2 && isspace (*string2)) | |
2445 | string2++; | |
2446 | continue; | |
2447 | } | |
2448 | ||
2449 | /* Handle C++ user-defined operators. */ | |
2450 | else if (language == language_cplus | |
2451 | && *string1 == 'o') | |
2452 | { | |
2453 | if (cp_is_operator (string1, string1_start)) | |
2454 | { | |
2455 | /* An operator name in STRING1. Check STRING2. */ | |
2456 | size_t cmplen | |
2457 | = std::min<size_t> (CP_OPERATOR_LEN, end_str2 - string2); | |
2458 | if (strncmp (string1, string2, cmplen) != 0) | |
2459 | return 1; | |
2460 | ||
2461 | string1 += cmplen; | |
2462 | string2 += cmplen; | |
2463 | ||
2464 | if (string2 != end_str2) | |
2465 | { | |
2466 | /* Check for "operatorX" in STRING2. */ | |
2467 | if (valid_identifier_name_char (*string2)) | |
2468 | return 1; | |
2469 | ||
2470 | skip_ws (string1, string2, end_str2); | |
2471 | } | |
2472 | ||
2473 | /* Handle operator(). */ | |
2474 | if (*string1 == '(') | |
2475 | { | |
2476 | if (string2 == end_str2) | |
2477 | { | |
2478 | if (mode == strncmp_iw_mode::NORMAL) | |
2479 | return 0; | |
2480 | else | |
2481 | { | |
2482 | /* Don't break for the regular return at the | |
2483 | bottom, because "operator" should not | |
2484 | match "operator()", since this open | |
2485 | parentheses is not the parameter list | |
2486 | start. */ | |
2487 | return *string1 != '\0'; | |
2488 | } | |
2489 | } | |
2490 | ||
2491 | if (*string1 != *string2) | |
2492 | return 1; | |
2493 | ||
2494 | string1++; | |
2495 | string2++; | |
2496 | } | |
2497 | ||
2498 | while (1) | |
2499 | { | |
2500 | skip_ws (string1, string2, end_str2); | |
2501 | ||
2502 | /* Skip to end of token, or to END, whatever comes | |
2503 | first. */ | |
2504 | const char *end_str1 = string1 + strlen (string1); | |
2505 | const char *p1 = cp_skip_operator_token (string1, end_str1); | |
2506 | const char *p2 = cp_skip_operator_token (string2, end_str2); | |
2507 | ||
2508 | cmplen = std::min (p1 - string1, p2 - string2); | |
2509 | if (p2 == end_str2) | |
2510 | { | |
2511 | if (strncmp (string1, string2, cmplen) != 0) | |
2512 | return 1; | |
2513 | } | |
2514 | else | |
2515 | { | |
2516 | if (p1 - string1 != p2 - string2) | |
2517 | return 1; | |
2518 | if (strncmp (string1, string2, cmplen) != 0) | |
2519 | return 1; | |
2520 | } | |
2521 | ||
2522 | string1 += cmplen; | |
2523 | string2 += cmplen; | |
2524 | ||
2525 | if (*string1 == '\0' || string2 == end_str2) | |
2526 | break; | |
2527 | if (*string1 == '(' || *string2 == '(') | |
2528 | break; | |
2529 | } | |
2530 | ||
2531 | continue; | |
2532 | } | |
2533 | } | |
2534 | ||
559a7a62 JK |
2535 | if (case_sensitivity == case_sensitive_on && *string1 != *string2) |
2536 | break; | |
2537 | if (case_sensitivity == case_sensitive_off | |
2538 | && (tolower ((unsigned char) *string1) | |
2539 | != tolower ((unsigned char) *string2))) | |
2540 | break; | |
1d550c82 | 2541 | |
0662b6a7 PA |
2542 | /* If we see any non-whitespace, non-identifier-name character |
2543 | (any of "()<>*&" etc.), then skip spaces the next time | |
2544 | around. */ | |
2545 | if (!isspace (*string1) && !valid_identifier_name_char (*string1)) | |
2546 | skip_spaces = true; | |
2547 | ||
1d550c82 PA |
2548 | string1++; |
2549 | string2++; | |
c906108c | 2550 | } |
1d550c82 PA |
2551 | |
2552 | if (string2 == end_str2) | |
2553 | { | |
2554 | if (mode == strncmp_iw_mode::NORMAL) | |
bd69330d PA |
2555 | { |
2556 | /* Strip abi tag markers from the matched symbol name. | |
2557 | Usually the ABI marker will be found on function name | |
2558 | (automatically added because the function returns an | |
2559 | object marked with an ABI tag). However, it's also | |
2560 | possible to see a marker in one of the function | |
2561 | parameters, for example. | |
2562 | ||
2563 | string2 (lookup name): | |
2564 | func | |
2565 | symbol name: | |
2566 | function(some_struct[abi:cxx11], int) | |
2567 | ||
2568 | and for completion LCD computation we want to say that | |
2569 | the match was for: | |
2570 | function(some_struct, int) | |
2571 | */ | |
2572 | if (match_for_lcd != NULL) | |
2573 | { | |
2574 | while ((string1 = strstr (string1, "[abi:")) != NULL) | |
2575 | { | |
2576 | const char *abi_start = string1; | |
2577 | ||
2578 | /* There can be more than one tag. */ | |
2579 | while (skip_abi_tag (&string1) && *string1 == '[') | |
2580 | ; | |
2581 | ||
2582 | if (abi_start != string1) | |
2583 | match_for_lcd->mark_ignored_range (abi_start, string1); | |
2584 | } | |
2585 | } | |
2586 | ||
2587 | return 0; | |
2588 | } | |
1d550c82 PA |
2589 | else |
2590 | return (*string1 != '\0' && *string1 != '('); | |
2591 | } | |
2592 | else | |
2593 | return 1; | |
2594 | } | |
2595 | ||
2596 | /* See utils.h. */ | |
2597 | ||
2598 | int | |
2599 | strncmp_iw (const char *string1, const char *string2, size_t string2_len) | |
2600 | { | |
2601 | return strncmp_iw_with_mode (string1, string2, string2_len, | |
0662b6a7 | 2602 | strncmp_iw_mode::NORMAL, language_minimal); |
1d550c82 PA |
2603 | } |
2604 | ||
2605 | /* See utils.h. */ | |
2606 | ||
2607 | int | |
2608 | strcmp_iw (const char *string1, const char *string2) | |
2609 | { | |
2610 | return strncmp_iw_with_mode (string1, string2, strlen (string2), | |
0662b6a7 | 2611 | strncmp_iw_mode::MATCH_PARAMS, language_minimal); |
c906108c | 2612 | } |
2de7ced7 | 2613 | |
0fe19209 DC |
2614 | /* This is like strcmp except that it ignores whitespace and treats |
2615 | '(' as the first non-NULL character in terms of ordering. Like | |
2616 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2617 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2618 | according to that ordering. | |
2619 | ||
2620 | If a list is sorted according to this function and if you want to | |
2621 | find names in the list that match some fixed NAME according to | |
2622 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2623 | where this function would put NAME. | |
2624 | ||
559a7a62 JK |
2625 | This function must be neutral to the CASE_SENSITIVITY setting as the user |
2626 | may choose it during later lookup. Therefore this function always sorts | |
2627 | primarily case-insensitively and secondarily case-sensitively. | |
2628 | ||
0fe19209 DC |
2629 | Here are some examples of why using strcmp to sort is a bad idea: |
2630 | ||
2631 | Whitespace example: | |
2632 | ||
2633 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2634 | we try to do a search for "foo<char*>", strcmp will locate this | |
2635 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2636 | will start looking at strings beginning with "goo", and will never | |
2637 | see the correct match of "foo<char *>". | |
2638 | ||
2639 | Parenthesis example: | |
2640 | ||
2641 | In practice, this is less like to be an issue, but I'll give it a | |
2642 | shot. Let's assume that '$' is a legitimate character to occur in | |
2643 | symbols. (Which may well even be the case on some systems.) Then | |
2644 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2645 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2646 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2647 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2648 | "foo") is false, so it won't proceed to the actual match of | |
2649 | "foo(int)" with "foo". */ | |
2650 | ||
2651 | int | |
2652 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2653 | { | |
559a7a62 JK |
2654 | const char *saved_string1 = string1, *saved_string2 = string2; |
2655 | enum case_sensitivity case_pass = case_sensitive_off; | |
2656 | ||
2657 | for (;;) | |
0fe19209 | 2658 | { |
b11b1f88 JK |
2659 | /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'. |
2660 | Provide stub characters if we are already at the end of one of the | |
2661 | strings. */ | |
2662 | char c1 = 'X', c2 = 'X'; | |
2663 | ||
2664 | while (*string1 != '\0' && *string2 != '\0') | |
0fe19209 | 2665 | { |
b11b1f88 JK |
2666 | while (isspace (*string1)) |
2667 | string1++; | |
2668 | while (isspace (*string2)) | |
2669 | string2++; | |
2670 | ||
559a7a62 JK |
2671 | switch (case_pass) |
2672 | { | |
2673 | case case_sensitive_off: | |
2674 | c1 = tolower ((unsigned char) *string1); | |
2675 | c2 = tolower ((unsigned char) *string2); | |
2676 | break; | |
2677 | case case_sensitive_on: | |
b11b1f88 JK |
2678 | c1 = *string1; |
2679 | c2 = *string2; | |
559a7a62 JK |
2680 | break; |
2681 | } | |
b11b1f88 JK |
2682 | if (c1 != c2) |
2683 | break; | |
2684 | ||
2685 | if (*string1 != '\0') | |
2686 | { | |
2687 | string1++; | |
2688 | string2++; | |
2689 | } | |
0fe19209 | 2690 | } |
b11b1f88 JK |
2691 | |
2692 | switch (*string1) | |
0fe19209 | 2693 | { |
b11b1f88 JK |
2694 | /* Characters are non-equal unless they're both '\0'; we want to |
2695 | make sure we get the comparison right according to our | |
2696 | comparison in the cases where one of them is '\0' or '('. */ | |
2697 | case '\0': | |
2698 | if (*string2 == '\0') | |
559a7a62 | 2699 | break; |
b11b1f88 JK |
2700 | else |
2701 | return -1; | |
2702 | case '(': | |
2703 | if (*string2 == '\0') | |
2704 | return 1; | |
2705 | else | |
2706 | return -1; | |
2707 | default: | |
2708 | if (*string2 == '\0' || *string2 == '(') | |
2709 | return 1; | |
559a7a62 JK |
2710 | else if (c1 > c2) |
2711 | return 1; | |
2712 | else if (c1 < c2) | |
2713 | return -1; | |
2714 | /* PASSTHRU */ | |
0fe19209 | 2715 | } |
559a7a62 JK |
2716 | |
2717 | if (case_pass == case_sensitive_on) | |
2718 | return 0; | |
2719 | ||
2720 | /* Otherwise the strings were equal in case insensitive way, make | |
2721 | a more fine grained comparison in a case sensitive way. */ | |
2722 | ||
2723 | case_pass = case_sensitive_on; | |
2724 | string1 = saved_string1; | |
2725 | string2 = saved_string2; | |
0fe19209 | 2726 | } |
0fe19209 DC |
2727 | } |
2728 | ||
459a2e4c | 2729 | /* See utils.h. */ |
2de7ced7 | 2730 | |
459a2e4c | 2731 | bool |
2de7ced7 DJ |
2732 | streq (const char *lhs, const char *rhs) |
2733 | { | |
2734 | return !strcmp (lhs, rhs); | |
2735 | } | |
459a2e4c TT |
2736 | |
2737 | /* See utils.h. */ | |
2738 | ||
2739 | int | |
2740 | streq_hash (const void *lhs, const void *rhs) | |
2741 | { | |
2742 | return streq ((const char *) lhs, (const char *) rhs); | |
2743 | } | |
2744 | ||
c906108c | 2745 | \f |
c5aa993b | 2746 | |
c906108c | 2747 | /* |
c5aa993b JM |
2748 | ** subset_compare() |
2749 | ** Answer whether string_to_compare is a full or partial match to | |
2750 | ** template_string. The partial match must be in sequence starting | |
2751 | ** at index 0. | |
2752 | */ | |
c906108c | 2753 | int |
a121b7c1 | 2754 | subset_compare (const char *string_to_compare, const char *template_string) |
7a292a7a SS |
2755 | { |
2756 | int match; | |
e0627e85 | 2757 | |
cafb3438 | 2758 | if (template_string != NULL && string_to_compare != NULL |
8731e58e AC |
2759 | && strlen (string_to_compare) <= strlen (template_string)) |
2760 | match = | |
61012eef | 2761 | (startswith (template_string, string_to_compare)); |
7a292a7a SS |
2762 | else |
2763 | match = 0; | |
2764 | return match; | |
2765 | } | |
c906108c | 2766 | |
75feb17d DJ |
2767 | static void |
2768 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
2769 | struct cmd_list_element *c, const char *value) | |
2770 | { | |
3e43a32a MS |
2771 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), |
2772 | value); | |
75feb17d | 2773 | } |
c906108c | 2774 | \f |
c5aa993b | 2775 | |
c906108c | 2776 | void |
fba45db2 | 2777 | initialize_utils (void) |
c906108c | 2778 | { |
35096d9d | 2779 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
77dec115 EZ |
2780 | Set number of characters where GDB should wrap lines of its output."), _("\ |
2781 | Show number of characters where GDB should wrap lines of its output."), _("\ | |
2782 | This affects where GDB wraps its output to fit the screen width.\n\ | |
f81d1120 | 2783 | Setting this to \"unlimited\" or zero prevents GDB from wrapping its output."), |
35096d9d | 2784 | set_width_command, |
920d2a44 | 2785 | show_chars_per_line, |
35096d9d AC |
2786 | &setlist, &showlist); |
2787 | ||
2788 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
77dec115 EZ |
2789 | Set number of lines in a page for GDB output pagination."), _("\ |
2790 | Show number of lines in a page for GDB output pagination."), _("\ | |
2791 | This affects the number of lines after which GDB will pause\n\ | |
2792 | its output and ask you whether to continue.\n\ | |
f81d1120 | 2793 | Setting this to \"unlimited\" or zero causes GDB never pause during output."), |
35096d9d | 2794 | set_height_command, |
920d2a44 | 2795 | show_lines_per_page, |
35096d9d | 2796 | &setlist, &showlist); |
c5aa993b | 2797 | |
5bf193a2 AC |
2798 | add_setshow_boolean_cmd ("pagination", class_support, |
2799 | &pagination_enabled, _("\ | |
77dec115 EZ |
2800 | Set state of GDB output pagination."), _("\ |
2801 | Show state of GDB output pagination."), _("\ | |
2802 | When pagination is ON, GDB pauses at end of each screenful of\n\ | |
2803 | its output and asks you whether to continue.\n\ | |
f81d1120 | 2804 | Turning pagination off is an alternative to \"set height unlimited\"."), |
5bf193a2 | 2805 | NULL, |
920d2a44 | 2806 | show_pagination_enabled, |
5bf193a2 | 2807 | &setlist, &showlist); |
4261bedc | 2808 | |
5bf193a2 AC |
2809 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, |
2810 | &sevenbit_strings, _("\ | |
2811 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
2812 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
2813 | NULL, | |
920d2a44 | 2814 | show_sevenbit_strings, |
5bf193a2 AC |
2815 | &setprintlist, &showprintlist); |
2816 | ||
75feb17d DJ |
2817 | add_setshow_boolean_cmd ("timestamp", class_maintenance, |
2818 | &debug_timestamp, _("\ | |
2819 | Set timestamping of debugging messages."), _("\ | |
2820 | Show timestamping of debugging messages."), _("\ | |
2821 | When set, debugging messages will be marked with seconds and microseconds."), | |
2822 | NULL, | |
2823 | show_debug_timestamp, | |
2824 | &setdebuglist, &showdebuglist); | |
c906108c SS |
2825 | } |
2826 | ||
a738ea1d YQ |
2827 | /* See utils.h. */ |
2828 | ||
2829 | CORE_ADDR | |
2830 | address_significant (gdbarch *gdbarch, CORE_ADDR addr) | |
2831 | { | |
8727de56 OJ |
2832 | /* Clear insignificant bits of a target address and sign extend resulting |
2833 | address, avoiding shifts larger or equal than the width of a CORE_ADDR. | |
2834 | The local variable ADDR_BIT stops the compiler reporting a shift overflow | |
5969f0db OJ |
2835 | when it won't occur. Skip updating of target address if current target |
2836 | has not set gdbarch significant_addr_bit. */ | |
a738ea1d YQ |
2837 | int addr_bit = gdbarch_significant_addr_bit (gdbarch); |
2838 | ||
5969f0db | 2839 | if (addr_bit && (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))) |
8727de56 OJ |
2840 | { |
2841 | CORE_ADDR sign = (CORE_ADDR) 1 << (addr_bit - 1); | |
2842 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2843 | addr = (addr ^ sign) - sign; | |
2844 | } | |
a738ea1d YQ |
2845 | |
2846 | return addr; | |
2847 | } | |
2848 | ||
66bf4b3a | 2849 | const char * |
5af949e3 | 2850 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
2851 | { |
2852 | /* Truncate address to the size of a target address, avoiding shifts | |
2853 | larger or equal than the width of a CORE_ADDR. The local | |
2854 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
581e13c1 | 2855 | when it won't occur. */ |
66bf4b3a AC |
2856 | /* NOTE: This assumes that the significant address information is |
2857 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2858 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2859 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2860 | ||
5af949e3 | 2861 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
2862 | |
2863 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2864 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2865 | return hex_string (addr); | |
2866 | } | |
2867 | ||
f1310107 TJB |
2868 | /* This function is described in "defs.h". */ |
2869 | ||
2870 | const char * | |
2871 | print_core_address (struct gdbarch *gdbarch, CORE_ADDR address) | |
2872 | { | |
2873 | int addr_bit = gdbarch_addr_bit (gdbarch); | |
2874 | ||
2875 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2876 | address &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2877 | ||
2878 | /* FIXME: cagney/2002-05-03: Need local_address_string() function | |
2879 | that returns the language localized string formatted to a width | |
2880 | based on gdbarch_addr_bit. */ | |
2881 | if (addr_bit <= 32) | |
2882 | return hex_string_custom (address, 8); | |
2883 | else | |
2884 | return hex_string_custom (address, 16); | |
2885 | } | |
2886 | ||
8e3b41a9 JK |
2887 | /* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */ |
2888 | ||
2889 | hashval_t | |
2890 | core_addr_hash (const void *ap) | |
2891 | { | |
19ba03f4 | 2892 | const CORE_ADDR *addrp = (const CORE_ADDR *) ap; |
8e3b41a9 JK |
2893 | |
2894 | return *addrp; | |
2895 | } | |
2896 | ||
2897 | /* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */ | |
2898 | ||
2899 | int | |
2900 | core_addr_eq (const void *ap, const void *bp) | |
2901 | { | |
19ba03f4 SM |
2902 | const CORE_ADDR *addr_ap = (const CORE_ADDR *) ap; |
2903 | const CORE_ADDR *addr_bp = (const CORE_ADDR *) bp; | |
8e3b41a9 JK |
2904 | |
2905 | return *addr_ap == *addr_bp; | |
2906 | } | |
2907 | ||
03dd37c3 AC |
2908 | /* Convert a string back into a CORE_ADDR. */ |
2909 | CORE_ADDR | |
2910 | string_to_core_addr (const char *my_string) | |
2911 | { | |
2912 | CORE_ADDR addr = 0; | |
9544c605 | 2913 | |
03dd37c3 AC |
2914 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
2915 | { | |
ced572fe | 2916 | /* Assume that it is in hex. */ |
03dd37c3 | 2917 | int i; |
5d502164 | 2918 | |
03dd37c3 AC |
2919 | for (i = 2; my_string[i] != '\0'; i++) |
2920 | { | |
2921 | if (isdigit (my_string[i])) | |
2922 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 2923 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
2924 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
2925 | else | |
63f06803 | 2926 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
2927 | } |
2928 | } | |
2929 | else | |
2930 | { | |
2931 | /* Assume that it is in decimal. */ | |
2932 | int i; | |
5d502164 | 2933 | |
03dd37c3 AC |
2934 | for (i = 0; my_string[i] != '\0'; i++) |
2935 | { | |
2936 | if (isdigit (my_string[i])) | |
2937 | addr = (my_string[i] - '0') + (addr * 10); | |
2938 | else | |
63f06803 | 2939 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
2940 | } |
2941 | } | |
9544c605 | 2942 | |
03dd37c3 AC |
2943 | return addr; |
2944 | } | |
58d370e0 | 2945 | |
14278e1f TT |
2946 | #if GDB_SELF_TEST |
2947 | ||
2948 | static void | |
2949 | gdb_realpath_check_trailer (const char *input, const char *trailer) | |
2950 | { | |
2951 | gdb::unique_xmalloc_ptr<char> result = gdb_realpath (input); | |
2952 | ||
2953 | size_t len = strlen (result.get ()); | |
2954 | size_t trail_len = strlen (trailer); | |
2955 | ||
2956 | SELF_CHECK (len >= trail_len | |
2957 | && strcmp (result.get () + len - trail_len, trailer) == 0); | |
2958 | } | |
2959 | ||
2960 | static void | |
2961 | gdb_realpath_tests () | |
2962 | { | |
2963 | /* A file which contains a directory prefix. */ | |
2964 | gdb_realpath_check_trailer ("./xfullpath.exp", "/xfullpath.exp"); | |
2965 | /* A file which contains a directory prefix. */ | |
2966 | gdb_realpath_check_trailer ("../../defs.h", "/defs.h"); | |
2967 | /* A one-character filename. */ | |
2968 | gdb_realpath_check_trailer ("./a", "/a"); | |
2969 | /* A file in the root directory. */ | |
2970 | gdb_realpath_check_trailer ("/root_file_which_should_exist", | |
2971 | "/root_file_which_should_exist"); | |
2972 | /* A file which does not have a directory prefix. */ | |
2973 | gdb_realpath_check_trailer ("xfullpath.exp", "xfullpath.exp"); | |
2974 | /* A one-char filename without any directory prefix. */ | |
2975 | gdb_realpath_check_trailer ("a", "a"); | |
2976 | /* An empty filename. */ | |
2977 | gdb_realpath_check_trailer ("", ""); | |
2978 | } | |
2979 | ||
2980 | #endif /* GDB_SELF_TEST */ | |
2981 | ||
ae5a43e0 DJ |
2982 | /* Allocation function for the libiberty hash table which uses an |
2983 | obstack. The obstack is passed as DATA. */ | |
2984 | ||
2985 | void * | |
2986 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
2987 | { | |
241fd515 | 2988 | size_t total = size * count; |
ae5a43e0 | 2989 | void *ptr = obstack_alloc ((struct obstack *) data, total); |
e0627e85 | 2990 | |
ae5a43e0 DJ |
2991 | memset (ptr, 0, total); |
2992 | return ptr; | |
2993 | } | |
2994 | ||
2995 | /* Trivial deallocation function for the libiberty splay tree and hash | |
2996 | table - don't deallocate anything. Rely on later deletion of the | |
2997 | obstack. DATA will be the obstack, although it is not needed | |
2998 | here. */ | |
2999 | ||
3000 | void | |
3001 | dummy_obstack_deallocate (void *object, void *data) | |
3002 | { | |
3003 | return; | |
3004 | } | |
253c8abb | 3005 | |
e1024ff1 DJ |
3006 | /* Simple, portable version of dirname that does not modify its |
3007 | argument. */ | |
3008 | ||
d721ba37 | 3009 | std::string |
e1024ff1 DJ |
3010 | ldirname (const char *filename) |
3011 | { | |
d721ba37 | 3012 | std::string dirname; |
e1024ff1 | 3013 | const char *base = lbasename (filename); |
e1024ff1 DJ |
3014 | |
3015 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
3016 | --base; | |
3017 | ||
3018 | if (base == filename) | |
d721ba37 | 3019 | return dirname; |
e1024ff1 | 3020 | |
d721ba37 | 3021 | dirname = std::string (filename, base - filename); |
e1024ff1 DJ |
3022 | |
3023 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
3024 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
3025 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
3026 | && !IS_DIR_SEPARATOR (filename[0])) | |
3027 | dirname[base++ - filename] = '.'; | |
3028 | ||
e1024ff1 DJ |
3029 | return dirname; |
3030 | } | |
d1a41061 | 3031 | |
773a1edc TT |
3032 | /* See utils.h. */ |
3033 | ||
3034 | void | |
3035 | gdb_argv::reset (const char *s) | |
3036 | { | |
3037 | char **argv = buildargv (s); | |
3038 | ||
3039 | if (s != NULL && argv == NULL) | |
3040 | malloc_failure (0); | |
3041 | ||
3042 | freeargv (m_argv); | |
3043 | m_argv = argv; | |
3044 | } | |
3045 | ||
dc146f7c VP |
3046 | int |
3047 | compare_positive_ints (const void *ap, const void *bp) | |
3048 | { | |
3049 | /* Because we know we're comparing two ints which are positive, | |
3050 | there's no danger of overflow here. */ | |
3051 | return * (int *) ap - * (int *) bp; | |
3052 | } | |
3053 | ||
d18b8b7a | 3054 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3e43a32a MS |
3055 | #define AMBIGUOUS_MESS2 \ |
3056 | ".\nUse \"set gnutarget format-name\" to specify the format." | |
d18b8b7a | 3057 | |
803c08d0 | 3058 | std::string |
d18b8b7a HZ |
3059 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) |
3060 | { | |
d18b8b7a HZ |
3061 | char **p; |
3062 | ||
3063 | /* Check if errmsg just need simple return. */ | |
3064 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
3065 | return bfd_errmsg (error_tag); | |
3066 | ||
803c08d0 TT |
3067 | std::string ret (bfd_errmsg (error_tag)); |
3068 | ret += AMBIGUOUS_MESS1; | |
d18b8b7a HZ |
3069 | |
3070 | for (p = matching; *p; p++) | |
3071 | { | |
803c08d0 TT |
3072 | ret += " "; |
3073 | ret += *p; | |
d18b8b7a | 3074 | } |
803c08d0 | 3075 | ret += AMBIGUOUS_MESS2; |
d18b8b7a | 3076 | |
803c08d0 | 3077 | xfree (matching); |
d18b8b7a HZ |
3078 | |
3079 | return ret; | |
3080 | } | |
3081 | ||
74164c56 JK |
3082 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
3083 | ||
3084 | int | |
c0939df1 | 3085 | parse_pid_to_attach (const char *args) |
74164c56 JK |
3086 | { |
3087 | unsigned long pid; | |
3088 | char *dummy; | |
3089 | ||
3090 | if (!args) | |
3091 | error_no_arg (_("process-id to attach")); | |
3092 | ||
c0939df1 | 3093 | dummy = (char *) args; |
74164c56 JK |
3094 | pid = strtoul (args, &dummy, 0); |
3095 | /* Some targets don't set errno on errors, grrr! */ | |
3096 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
3097 | error (_("Illegal process-id: %s."), args); | |
3098 | ||
3099 | return pid; | |
3100 | } | |
3101 | ||
6dea1fbd JK |
3102 | /* Substitute all occurences of string FROM by string TO in *STRINGP. *STRINGP |
3103 | must come from xrealloc-compatible allocator and it may be updated. FROM | |
1564a261 JK |
3104 | needs to be delimited by IS_DIR_SEPARATOR or DIRNAME_SEPARATOR (or be |
3105 | located at the start or end of *STRINGP. */ | |
6dea1fbd JK |
3106 | |
3107 | void | |
3108 | substitute_path_component (char **stringp, const char *from, const char *to) | |
3109 | { | |
3110 | char *string = *stringp, *s; | |
3111 | const size_t from_len = strlen (from); | |
3112 | const size_t to_len = strlen (to); | |
3113 | ||
3114 | for (s = string;;) | |
3115 | { | |
3116 | s = strstr (s, from); | |
3117 | if (s == NULL) | |
3118 | break; | |
3119 | ||
1564a261 JK |
3120 | if ((s == string || IS_DIR_SEPARATOR (s[-1]) |
3121 | || s[-1] == DIRNAME_SEPARATOR) | |
3122 | && (s[from_len] == '\0' || IS_DIR_SEPARATOR (s[from_len]) | |
3123 | || s[from_len] == DIRNAME_SEPARATOR)) | |
6dea1fbd JK |
3124 | { |
3125 | char *string_new; | |
3126 | ||
224c3ddb SM |
3127 | string_new |
3128 | = (char *) xrealloc (string, (strlen (string) + to_len + 1)); | |
6dea1fbd JK |
3129 | |
3130 | /* Relocate the current S pointer. */ | |
3131 | s = s - string + string_new; | |
3132 | string = string_new; | |
3133 | ||
3134 | /* Replace from by to. */ | |
3135 | memmove (&s[to_len], &s[from_len], strlen (&s[from_len]) + 1); | |
3136 | memcpy (s, to, to_len); | |
3137 | ||
3138 | s += to_len; | |
3139 | } | |
3140 | else | |
3141 | s++; | |
3142 | } | |
3143 | ||
3144 | *stringp = string; | |
3145 | } | |
3146 | ||
0b6cb71e DE |
3147 | #ifdef HAVE_WAITPID |
3148 | ||
3149 | #ifdef SIGALRM | |
3150 | ||
3151 | /* SIGALRM handler for waitpid_with_timeout. */ | |
3152 | ||
3153 | static void | |
3154 | sigalrm_handler (int signo) | |
3155 | { | |
3156 | /* Nothing to do. */ | |
3157 | } | |
3158 | ||
3159 | #endif | |
3160 | ||
3161 | /* Wrapper to wait for child PID to die with TIMEOUT. | |
3162 | TIMEOUT is the time to stop waiting in seconds. | |
3163 | If TIMEOUT is zero, pass WNOHANG to waitpid. | |
3164 | Returns PID if it was successfully waited for, otherwise -1. | |
3165 | ||
3166 | Timeouts are currently implemented with alarm and SIGALRM. | |
3167 | If the host does not support them, this waits "forever". | |
3168 | It would be odd though for a host to have waitpid and not SIGALRM. */ | |
3169 | ||
3170 | pid_t | |
3171 | wait_to_die_with_timeout (pid_t pid, int *status, int timeout) | |
3172 | { | |
3173 | pid_t waitpid_result; | |
3174 | ||
3175 | gdb_assert (pid > 0); | |
3176 | gdb_assert (timeout >= 0); | |
3177 | ||
3178 | if (timeout > 0) | |
3179 | { | |
3180 | #ifdef SIGALRM | |
3181 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3182 | struct sigaction sa, old_sa; | |
3183 | ||
3184 | sa.sa_handler = sigalrm_handler; | |
3185 | sigemptyset (&sa.sa_mask); | |
3186 | sa.sa_flags = 0; | |
3187 | sigaction (SIGALRM, &sa, &old_sa); | |
3188 | #else | |
a40805d4 | 3189 | sighandler_t ofunc; |
0b6cb71e | 3190 | |
a40805d4 | 3191 | ofunc = signal (SIGALRM, sigalrm_handler); |
0b6cb71e DE |
3192 | #endif |
3193 | ||
3194 | alarm (timeout); | |
3195 | #endif | |
3196 | ||
3197 | waitpid_result = waitpid (pid, status, 0); | |
3198 | ||
3199 | #ifdef SIGALRM | |
3200 | alarm (0); | |
3201 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3202 | sigaction (SIGALRM, &old_sa, NULL); | |
3203 | #else | |
3204 | signal (SIGALRM, ofunc); | |
3205 | #endif | |
3206 | #endif | |
3207 | } | |
3208 | else | |
3209 | waitpid_result = waitpid (pid, status, WNOHANG); | |
3210 | ||
3211 | if (waitpid_result == pid) | |
3212 | return pid; | |
3213 | else | |
3214 | return -1; | |
3215 | } | |
3216 | ||
3217 | #endif /* HAVE_WAITPID */ | |
3218 | ||
202cbf1c JK |
3219 | /* Provide fnmatch compatible function for FNM_FILE_NAME matching of host files. |
3220 | Both FNM_FILE_NAME and FNM_NOESCAPE must be set in FLAGS. | |
3221 | ||
3222 | It handles correctly HAVE_DOS_BASED_FILE_SYSTEM and | |
3223 | HAVE_CASE_INSENSITIVE_FILE_SYSTEM. */ | |
3224 | ||
3225 | int | |
3226 | gdb_filename_fnmatch (const char *pattern, const char *string, int flags) | |
3227 | { | |
3228 | gdb_assert ((flags & FNM_FILE_NAME) != 0); | |
3229 | ||
3230 | /* It is unclear how '\' escaping vs. directory separator should coexist. */ | |
3231 | gdb_assert ((flags & FNM_NOESCAPE) != 0); | |
3232 | ||
3233 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3234 | { | |
3235 | char *pattern_slash, *string_slash; | |
3236 | ||
3237 | /* Replace '\' by '/' in both strings. */ | |
3238 | ||
0ae1c716 | 3239 | pattern_slash = (char *) alloca (strlen (pattern) + 1); |
202cbf1c JK |
3240 | strcpy (pattern_slash, pattern); |
3241 | pattern = pattern_slash; | |
3242 | for (; *pattern_slash != 0; pattern_slash++) | |
3243 | if (IS_DIR_SEPARATOR (*pattern_slash)) | |
3244 | *pattern_slash = '/'; | |
3245 | ||
0ae1c716 | 3246 | string_slash = (char *) alloca (strlen (string) + 1); |
202cbf1c JK |
3247 | strcpy (string_slash, string); |
3248 | string = string_slash; | |
3249 | for (; *string_slash != 0; string_slash++) | |
3250 | if (IS_DIR_SEPARATOR (*string_slash)) | |
3251 | *string_slash = '/'; | |
3252 | } | |
3253 | #endif /* HAVE_DOS_BASED_FILE_SYSTEM */ | |
3254 | ||
3255 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
3256 | flags |= FNM_CASEFOLD; | |
3257 | #endif /* HAVE_CASE_INSENSITIVE_FILE_SYSTEM */ | |
3258 | ||
3259 | return fnmatch (pattern, string, flags); | |
3260 | } | |
3261 | ||
cce0e923 DE |
3262 | /* Return the number of path elements in PATH. |
3263 | / = 1 | |
3264 | /foo = 2 | |
3265 | /foo/ = 2 | |
3266 | foo/bar = 2 | |
3267 | foo/ = 1 */ | |
3268 | ||
3269 | int | |
3270 | count_path_elements (const char *path) | |
3271 | { | |
3272 | int count = 0; | |
3273 | const char *p = path; | |
3274 | ||
3275 | if (HAS_DRIVE_SPEC (p)) | |
3276 | { | |
3277 | p = STRIP_DRIVE_SPEC (p); | |
3278 | ++count; | |
3279 | } | |
3280 | ||
3281 | while (*p != '\0') | |
3282 | { | |
3283 | if (IS_DIR_SEPARATOR (*p)) | |
3284 | ++count; | |
3285 | ++p; | |
3286 | } | |
3287 | ||
3288 | /* Backup one if last character is /, unless it's the only one. */ | |
3289 | if (p > path + 1 && IS_DIR_SEPARATOR (p[-1])) | |
3290 | --count; | |
3291 | ||
3292 | /* Add one for the file name, if present. */ | |
3293 | if (p > path && !IS_DIR_SEPARATOR (p[-1])) | |
3294 | ++count; | |
3295 | ||
3296 | return count; | |
3297 | } | |
3298 | ||
3299 | /* Remove N leading path elements from PATH. | |
3300 | N must be non-negative. | |
3301 | If PATH has more than N path elements then return NULL. | |
3302 | If PATH has exactly N path elements then return "". | |
3303 | See count_path_elements for a description of how we do the counting. */ | |
3304 | ||
3305 | const char * | |
3306 | strip_leading_path_elements (const char *path, int n) | |
3307 | { | |
3308 | int i = 0; | |
3309 | const char *p = path; | |
3310 | ||
3311 | gdb_assert (n >= 0); | |
3312 | ||
3313 | if (n == 0) | |
3314 | return p; | |
3315 | ||
3316 | if (HAS_DRIVE_SPEC (p)) | |
3317 | { | |
3318 | p = STRIP_DRIVE_SPEC (p); | |
3319 | ++i; | |
3320 | } | |
3321 | ||
3322 | while (i < n) | |
3323 | { | |
3324 | while (*p != '\0' && !IS_DIR_SEPARATOR (*p)) | |
3325 | ++p; | |
3326 | if (*p == '\0') | |
3327 | { | |
3328 | if (i + 1 == n) | |
3329 | return ""; | |
3330 | return NULL; | |
3331 | } | |
3332 | ++p; | |
3333 | ++i; | |
3334 | } | |
3335 | ||
3336 | return p; | |
3337 | } | |
3338 | ||
a99bc3d2 JB |
3339 | /* See utils.h. */ |
3340 | ||
3341 | void | |
3342 | copy_bitwise (gdb_byte *dest, ULONGEST dest_offset, | |
3343 | const gdb_byte *source, ULONGEST source_offset, | |
3344 | ULONGEST nbits, int bits_big_endian) | |
3345 | { | |
3346 | unsigned int buf, avail; | |
3347 | ||
3348 | if (nbits == 0) | |
3349 | return; | |
3350 | ||
3351 | if (bits_big_endian) | |
3352 | { | |
3353 | /* Start from the end, then work backwards. */ | |
3354 | dest_offset += nbits - 1; | |
3355 | dest += dest_offset / 8; | |
3356 | dest_offset = 7 - dest_offset % 8; | |
3357 | source_offset += nbits - 1; | |
3358 | source += source_offset / 8; | |
3359 | source_offset = 7 - source_offset % 8; | |
3360 | } | |
3361 | else | |
3362 | { | |
3363 | dest += dest_offset / 8; | |
3364 | dest_offset %= 8; | |
3365 | source += source_offset / 8; | |
3366 | source_offset %= 8; | |
3367 | } | |
3368 | ||
3369 | /* Fill BUF with DEST_OFFSET bits from the destination and 8 - | |
3370 | SOURCE_OFFSET bits from the source. */ | |
3371 | buf = *(bits_big_endian ? source-- : source++) >> source_offset; | |
3372 | buf <<= dest_offset; | |
3373 | buf |= *dest & ((1 << dest_offset) - 1); | |
3374 | ||
3375 | /* NBITS: bits yet to be written; AVAIL: BUF's fill level. */ | |
3376 | nbits += dest_offset; | |
3377 | avail = dest_offset + 8 - source_offset; | |
3378 | ||
3379 | /* Flush 8 bits from BUF, if appropriate. */ | |
3380 | if (nbits >= 8 && avail >= 8) | |
3381 | { | |
3382 | *(bits_big_endian ? dest-- : dest++) = buf; | |
3383 | buf >>= 8; | |
3384 | avail -= 8; | |
3385 | nbits -= 8; | |
3386 | } | |
3387 | ||
3388 | /* Copy the middle part. */ | |
3389 | if (nbits >= 8) | |
3390 | { | |
3391 | size_t len = nbits / 8; | |
3392 | ||
3393 | /* Use a faster method for byte-aligned copies. */ | |
3394 | if (avail == 0) | |
3395 | { | |
3396 | if (bits_big_endian) | |
3397 | { | |
3398 | dest -= len; | |
3399 | source -= len; | |
3400 | memcpy (dest + 1, source + 1, len); | |
3401 | } | |
3402 | else | |
3403 | { | |
3404 | memcpy (dest, source, len); | |
3405 | dest += len; | |
3406 | source += len; | |
3407 | } | |
3408 | } | |
3409 | else | |
3410 | { | |
3411 | while (len--) | |
3412 | { | |
3413 | buf |= *(bits_big_endian ? source-- : source++) << avail; | |
3414 | *(bits_big_endian ? dest-- : dest++) = buf; | |
3415 | buf >>= 8; | |
3416 | } | |
3417 | } | |
3418 | nbits %= 8; | |
3419 | } | |
3420 | ||
3421 | /* Write the last byte. */ | |
3422 | if (nbits) | |
3423 | { | |
3424 | if (avail < nbits) | |
3425 | buf |= *source << avail; | |
3426 | ||
3427 | buf &= (1 << nbits) - 1; | |
3428 | *dest = (*dest & (~0 << nbits)) | buf; | |
3429 | } | |
3430 | } | |
3431 | ||
3c16cced PA |
3432 | void |
3433 | _initialize_utils (void) | |
3434 | { | |
3435 | add_internal_problem_command (&internal_error_problem); | |
3436 | add_internal_problem_command (&internal_warning_problem); | |
57fcfb1b | 3437 | add_internal_problem_command (&demangler_warning_problem); |
14278e1f TT |
3438 | |
3439 | #if GDB_SELF_TEST | |
1526853e | 3440 | selftests::register_test ("gdb_realpath", gdb_realpath_tests); |
14278e1f | 3441 | #endif |
3c16cced | 3442 | } |