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 | |
390a8aca | 65 | #include "interps.h" |
db1ff28b | 66 | #include "gdb_regex.h" |
268a13a5 TT |
67 | #include "gdbsupport/job-control.h" |
68 | #include "gdbsupport/selftest.h" | |
69 | #include "gdbsupport/gdb_optional.h" | |
0662b6a7 PA |
70 | #include "cp-support.h" |
71 | #include <algorithm> | |
268a13a5 | 72 | #include "gdbsupport/pathstuff.h" |
cbe56571 | 73 | #include "cli/cli-style.h" |
268a13a5 | 74 | #include "gdbsupport/scope-exit.h" |
0d12e84c | 75 | #include "gdbarch.h" |
8626589c | 76 | |
9a4105ab | 77 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
78 | |
79 | /* Prototypes for local functions */ | |
80 | ||
d9fcf2fb | 81 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
a0b31db1 | 82 | va_list, int) ATTRIBUTE_PRINTF (2, 0); |
c906108c | 83 | |
d9fcf2fb | 84 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 85 | |
a14ed312 | 86 | static void prompt_for_continue (void); |
c906108c | 87 | |
eb0d3137 | 88 | static void set_screen_size (void); |
a14ed312 | 89 | static void set_width (void); |
c906108c | 90 | |
260c0b2a DE |
91 | /* Time spent in prompt_for_continue in the currently executing command |
92 | waiting for user to respond. | |
93 | Initialized in make_command_stats_cleanup. | |
94 | Modified in prompt_for_continue and defaulted_query. | |
95 | Used in report_command_stats. */ | |
96 | ||
dcb07cfa | 97 | static std::chrono::steady_clock::duration prompt_for_continue_wait_time; |
260c0b2a | 98 | |
75feb17d DJ |
99 | /* A flag indicating whether to timestamp debugging messages. */ |
100 | ||
491144b5 | 101 | static bool debug_timestamp = false; |
75feb17d | 102 | |
491144b5 CB |
103 | /* True means that strings with character values >0x7F should be printed |
104 | as octal escapes. False means just print the value (e.g. it's an | |
c906108c SS |
105 | international character, and the terminal or window can cope.) */ |
106 | ||
491144b5 | 107 | bool sevenbit_strings = false; |
920d2a44 AC |
108 | static void |
109 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
110 | struct cmd_list_element *c, const char *value) | |
111 | { | |
3e43a32a MS |
112 | fprintf_filtered (file, _("Printing of 8-bit characters " |
113 | "in strings as \\nnn is %s.\n"), | |
920d2a44 AC |
114 | value); |
115 | } | |
c906108c | 116 | |
c906108c SS |
117 | /* String to be printed before warning messages, if any. */ |
118 | ||
69bbf465 | 119 | const char *warning_pre_print = "\nwarning: "; |
c906108c | 120 | |
491144b5 | 121 | bool pagination_enabled = true; |
920d2a44 AC |
122 | static void |
123 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
124 | struct cmd_list_element *c, const char *value) | |
125 | { | |
126 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
127 | } | |
128 | ||
c906108c | 129 | \f |
c5aa993b | 130 | |
8731e58e | 131 | |
f5a96129 AC |
132 | /* Print a warning message. The first argument STRING is the warning |
133 | message, used as an fprintf format string, the second is the | |
134 | va_list of arguments for that string. A warning is unfiltered (not | |
135 | paginated) so that the user does not need to page through each | |
136 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
137 | |
138 | void | |
f5a96129 | 139 | vwarning (const char *string, va_list args) |
c906108c | 140 | { |
9a4105ab AC |
141 | if (deprecated_warning_hook) |
142 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
143 | else |
144 | { | |
223ffa71 | 145 | gdb::optional<target_terminal::scoped_restore_terminal_state> term_state; |
0d2f5c07 | 146 | if (target_supports_terminal_ours ()) |
c5ac1540 | 147 | { |
223ffa71 TT |
148 | term_state.emplace (); |
149 | target_terminal::ours_for_output (); | |
c5ac1540 | 150 | } |
0d2f5c07 GB |
151 | if (filtered_printing_initialized ()) |
152 | wrap_here (""); /* Force out any buffered output. */ | |
f5a96129 AC |
153 | gdb_flush (gdb_stdout); |
154 | if (warning_pre_print) | |
306d9ac5 | 155 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
156 | vfprintf_unfiltered (gdb_stderr, string, args); |
157 | fprintf_unfiltered (gdb_stderr, "\n"); | |
f5a96129 | 158 | } |
c906108c SS |
159 | } |
160 | ||
c906108c SS |
161 | /* Print an error message and return to command level. |
162 | The first argument STRING is the error message, used as a fprintf string, | |
163 | and the remaining args are passed as arguments to it. */ | |
164 | ||
c25c4a8b | 165 | void |
4ce44c66 JM |
166 | verror (const char *string, va_list args) |
167 | { | |
6b1b7650 | 168 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
169 | } |
170 | ||
c25c4a8b | 171 | void |
d7e74731 | 172 | error_stream (const string_file &stream) |
2acceee2 | 173 | { |
d7e74731 | 174 | error (("%s"), stream.c_str ()); |
2acceee2 | 175 | } |
c906108c | 176 | |
2437fd32 GB |
177 | /* Emit a message and abort. */ |
178 | ||
179 | static void ATTRIBUTE_NORETURN | |
180 | abort_with_message (const char *msg) | |
181 | { | |
72542b8e | 182 | if (current_ui == NULL) |
2437fd32 GB |
183 | fputs (msg, stderr); |
184 | else | |
185 | fputs_unfiltered (msg, gdb_stderr); | |
186 | ||
187 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
188 | } | |
189 | ||
7991dee7 JK |
190 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
191 | ||
eae7090b | 192 | void |
7991dee7 JK |
193 | dump_core (void) |
194 | { | |
195 | #ifdef HAVE_SETRLIMIT | |
206c1947 | 196 | struct rlimit rlim = { (rlim_t) RLIM_INFINITY, (rlim_t) RLIM_INFINITY }; |
7991dee7 JK |
197 | |
198 | setrlimit (RLIMIT_CORE, &rlim); | |
199 | #endif /* HAVE_SETRLIMIT */ | |
200 | ||
201 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
202 | } | |
203 | ||
3e43a32a | 204 | /* Check whether GDB will be able to dump core using the dump_core |
eae7090b GB |
205 | function. Returns zero if GDB cannot or should not dump core. |
206 | If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected. | |
207 | If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected. */ | |
7991dee7 | 208 | |
eae7090b GB |
209 | int |
210 | can_dump_core (enum resource_limit_kind limit_kind) | |
7991dee7 JK |
211 | { |
212 | #ifdef HAVE_GETRLIMIT | |
213 | struct rlimit rlim; | |
214 | ||
215 | /* Be quiet and assume we can dump if an error is returned. */ | |
216 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
217 | return 1; | |
218 | ||
eae7090b | 219 | switch (limit_kind) |
7991dee7 | 220 | { |
eae7090b GB |
221 | case LIMIT_CUR: |
222 | if (rlim.rlim_cur == 0) | |
223 | return 0; | |
565e0eda | 224 | /* Fall through. */ |
eae7090b GB |
225 | |
226 | case LIMIT_MAX: | |
227 | if (rlim.rlim_max == 0) | |
228 | return 0; | |
7991dee7 JK |
229 | } |
230 | #endif /* HAVE_GETRLIMIT */ | |
231 | ||
232 | return 1; | |
233 | } | |
234 | ||
eae7090b GB |
235 | /* Print a warning that we cannot dump core. */ |
236 | ||
237 | void | |
238 | warn_cant_dump_core (const char *reason) | |
239 | { | |
240 | fprintf_unfiltered (gdb_stderr, | |
241 | _("%s\nUnable to dump core, use `ulimit -c" | |
242 | " unlimited' before executing GDB next time.\n"), | |
243 | reason); | |
244 | } | |
245 | ||
246 | /* Check whether GDB will be able to dump core using the dump_core | |
247 | function, and print a warning if we cannot. */ | |
248 | ||
249 | static int | |
250 | can_dump_core_warn (enum resource_limit_kind limit_kind, | |
251 | const char *reason) | |
252 | { | |
253 | int core_dump_allowed = can_dump_core (limit_kind); | |
254 | ||
255 | if (!core_dump_allowed) | |
256 | warn_cant_dump_core (reason); | |
257 | ||
258 | return core_dump_allowed; | |
259 | } | |
260 | ||
3c16cced PA |
261 | /* Allow the user to configure the debugger behavior with respect to |
262 | what to do when an internal problem is detected. */ | |
263 | ||
264 | const char internal_problem_ask[] = "ask"; | |
265 | const char internal_problem_yes[] = "yes"; | |
266 | const char internal_problem_no[] = "no"; | |
40478521 | 267 | static const char *const internal_problem_modes[] = |
3c16cced PA |
268 | { |
269 | internal_problem_ask, | |
270 | internal_problem_yes, | |
271 | internal_problem_no, | |
272 | NULL | |
273 | }; | |
3c16cced | 274 | |
581e13c1 | 275 | /* Print a message reporting an internal error/warning. Ask the user |
dec43320 AC |
276 | if they want to continue, dump core, or just exit. Return |
277 | something to indicate a quit. */ | |
c906108c | 278 | |
dec43320 | 279 | struct internal_problem |
c906108c | 280 | { |
dec43320 | 281 | const char *name; |
57fcfb1b | 282 | int user_settable_should_quit; |
3c16cced | 283 | const char *should_quit; |
57fcfb1b | 284 | int user_settable_should_dump_core; |
3c16cced | 285 | const char *should_dump_core; |
dec43320 AC |
286 | }; |
287 | ||
288 | /* Report a problem, internal to GDB, to the user. Once the problem | |
289 | has been reported, and assuming GDB didn't quit, the caller can | |
290 | either allow execution to resume or throw an error. */ | |
291 | ||
a0b31db1 | 292 | static void ATTRIBUTE_PRINTF (4, 0) |
dec43320 | 293 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 294 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 295 | { |
dec43320 | 296 | static int dejavu; |
375fc983 | 297 | int quit_p; |
7be570e7 | 298 | int dump_core_p; |
e05550d7 | 299 | std::string reason; |
c906108c | 300 | |
dec43320 | 301 | /* Don't allow infinite error/warning recursion. */ |
714b1282 | 302 | { |
02cf60c7 | 303 | static const char msg[] = "Recursive internal problem.\n"; |
5d502164 | 304 | |
714b1282 AC |
305 | switch (dejavu) |
306 | { | |
307 | case 0: | |
308 | dejavu = 1; | |
309 | break; | |
310 | case 1: | |
311 | dejavu = 2; | |
2437fd32 | 312 | abort_with_message (msg); |
714b1282 AC |
313 | default: |
314 | dejavu = 3; | |
bf1d7d9c JB |
315 | /* Newer GLIBC versions put the warn_unused_result attribute |
316 | on write, but this is one of those rare cases where | |
317 | ignoring the return value is correct. Casting to (void) | |
318 | does not fix this problem. This is the solution suggested | |
319 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
320 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
7991dee7 | 321 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
322 | exit (1); |
323 | } | |
324 | } | |
c906108c | 325 | |
714b1282 AC |
326 | /* Create a string containing the full error/warning message. Need |
327 | to call query with this full string, as otherwize the reason | |
328 | (error/warning) and question become separated. Format using a | |
329 | style similar to a compiler error message. Include extra detail | |
330 | so that the user knows that they are living on the edge. */ | |
331 | { | |
f8bfbf22 | 332 | std::string msg = string_vprintf (fmt, ap); |
e05550d7 TT |
333 | reason = string_printf ("%s:%d: %s: %s\n" |
334 | "A problem internal to GDB has been detected,\n" | |
335 | "further debugging may prove unreliable.", | |
336 | file, line, problem->name, msg.c_str ()); | |
714b1282 | 337 | } |
7be570e7 | 338 | |
2437fd32 | 339 | /* Fall back to abort_with_message if gdb_stderr is not set up. */ |
72542b8e | 340 | if (current_ui == NULL) |
2437fd32 | 341 | { |
e05550d7 | 342 | fputs (reason.c_str (), stderr); |
2437fd32 GB |
343 | abort_with_message ("\n"); |
344 | } | |
345 | ||
346 | /* Try to get the message out and at the start of a new line. */ | |
223ffa71 | 347 | gdb::optional<target_terminal::scoped_restore_terminal_state> term_state; |
2437fd32 | 348 | if (target_supports_terminal_ours ()) |
c5ac1540 | 349 | { |
223ffa71 TT |
350 | term_state.emplace (); |
351 | target_terminal::ours_for_output (); | |
c5ac1540 | 352 | } |
2437fd32 GB |
353 | if (filtered_printing_initialized ()) |
354 | begin_line (); | |
355 | ||
196a707b | 356 | /* Emit the message unless query will emit it below. */ |
2437fd32 GB |
357 | if (problem->should_quit != internal_problem_ask |
358 | || !confirm | |
359 | || !filtered_printing_initialized ()) | |
e05550d7 | 360 | fprintf_unfiltered (gdb_stderr, "%s\n", reason.c_str ()); |
196a707b | 361 | |
3c16cced | 362 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 363 | { |
dec43320 | 364 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
365 | this lessens the likelihood of GDB going into an infinite |
366 | loop. */ | |
2437fd32 | 367 | if (!confirm || !filtered_printing_initialized ()) |
196a707b | 368 | quit_p = 1; |
26bb68be | 369 | else |
e05550d7 TT |
370 | quit_p = query (_("%s\nQuit this debugging session? "), |
371 | reason.c_str ()); | |
dec43320 | 372 | } |
3c16cced PA |
373 | else if (problem->should_quit == internal_problem_yes) |
374 | quit_p = 1; | |
375 | else if (problem->should_quit == internal_problem_no) | |
376 | quit_p = 0; | |
377 | else | |
378 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 379 | |
add6c04d GB |
380 | fputs_unfiltered (_("\nThis is a bug, please report it."), gdb_stderr); |
381 | if (REPORT_BUGS_TO[0]) | |
382 | fprintf_unfiltered (gdb_stderr, _(" For instructions, see:\n%s."), | |
383 | REPORT_BUGS_TO); | |
384 | fputs_unfiltered ("\n\n", gdb_stderr); | |
385 | ||
3c16cced | 386 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 387 | { |
e05550d7 | 388 | if (!can_dump_core_warn (LIMIT_MAX, reason.c_str ())) |
7991dee7 | 389 | dump_core_p = 0; |
2437fd32 GB |
390 | else if (!filtered_printing_initialized ()) |
391 | dump_core_p = 1; | |
7991dee7 JK |
392 | else |
393 | { | |
394 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
395 | `dropping' so that it is easier to see that something went | |
396 | wrong in GDB. */ | |
e05550d7 TT |
397 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), |
398 | reason.c_str ()); | |
7991dee7 | 399 | } |
dec43320 | 400 | } |
3c16cced | 401 | else if (problem->should_dump_core == internal_problem_yes) |
e05550d7 | 402 | dump_core_p = can_dump_core_warn (LIMIT_MAX, reason.c_str ()); |
3c16cced PA |
403 | else if (problem->should_dump_core == internal_problem_no) |
404 | dump_core_p = 0; | |
405 | else | |
406 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 407 | |
375fc983 | 408 | if (quit_p) |
7be570e7 JM |
409 | { |
410 | if (dump_core_p) | |
7991dee7 | 411 | dump_core (); |
375fc983 AC |
412 | else |
413 | exit (1); | |
7be570e7 JM |
414 | } |
415 | else | |
416 | { | |
417 | if (dump_core_p) | |
375fc983 | 418 | { |
9b265ec2 | 419 | #ifdef HAVE_WORKING_FORK |
375fc983 | 420 | if (fork () == 0) |
7991dee7 | 421 | dump_core (); |
9b265ec2 | 422 | #endif |
375fc983 | 423 | } |
7be570e7 | 424 | } |
96baa820 JM |
425 | |
426 | dejavu = 0; | |
dec43320 AC |
427 | } |
428 | ||
429 | static struct internal_problem internal_error_problem = { | |
57fcfb1b | 430 | "internal-error", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
431 | }; |
432 | ||
c25c4a8b | 433 | void |
8731e58e | 434 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
435 | { |
436 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
2c51604d | 437 | throw_quit (_("Command aborted.")); |
c906108c SS |
438 | } |
439 | ||
dec43320 | 440 | static struct internal_problem internal_warning_problem = { |
57fcfb1b | 441 | "internal-warning", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
442 | }; |
443 | ||
444 | void | |
8731e58e | 445 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
446 | { |
447 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
448 | } | |
449 | ||
57fcfb1b GB |
450 | static struct internal_problem demangler_warning_problem = { |
451 | "demangler-warning", 1, internal_problem_ask, 0, internal_problem_no | |
452 | }; | |
453 | ||
454 | void | |
455 | demangler_vwarning (const char *file, int line, const char *fmt, va_list ap) | |
456 | { | |
457 | internal_vproblem (&demangler_warning_problem, file, line, fmt, ap); | |
458 | } | |
459 | ||
460 | void | |
461 | demangler_warning (const char *file, int line, const char *string, ...) | |
462 | { | |
463 | va_list ap; | |
464 | ||
465 | va_start (ap, string); | |
466 | demangler_vwarning (file, line, string, ap); | |
467 | va_end (ap); | |
468 | } | |
469 | ||
3c16cced PA |
470 | /* Dummy functions to keep add_prefix_cmd happy. */ |
471 | ||
472 | static void | |
981a3fb3 | 473 | set_internal_problem_cmd (const char *args, int from_tty) |
3c16cced PA |
474 | { |
475 | } | |
476 | ||
477 | static void | |
981a3fb3 | 478 | show_internal_problem_cmd (const char *args, int from_tty) |
3c16cced PA |
479 | { |
480 | } | |
481 | ||
482 | /* When GDB reports an internal problem (error or warning) it gives | |
483 | the user the opportunity to quit GDB and/or create a core file of | |
484 | the current debug session. This function registers a few commands | |
485 | that make it possible to specify that GDB should always or never | |
486 | quit or create a core file, without asking. The commands look | |
487 | like: | |
488 | ||
489 | maint set PROBLEM-NAME quit ask|yes|no | |
490 | maint show PROBLEM-NAME quit | |
491 | maint set PROBLEM-NAME corefile ask|yes|no | |
492 | maint show PROBLEM-NAME corefile | |
493 | ||
494 | Where PROBLEM-NAME is currently "internal-error" or | |
495 | "internal-warning". */ | |
496 | ||
497 | static void | |
498 | add_internal_problem_command (struct internal_problem *problem) | |
499 | { | |
500 | struct cmd_list_element **set_cmd_list; | |
501 | struct cmd_list_element **show_cmd_list; | |
502 | char *set_doc; | |
503 | char *show_doc; | |
504 | ||
8d749320 SM |
505 | set_cmd_list = XNEW (struct cmd_list_element *); |
506 | show_cmd_list = XNEW (struct cmd_list_element *); | |
3c16cced PA |
507 | *set_cmd_list = NULL; |
508 | *show_cmd_list = NULL; | |
509 | ||
510 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
511 | problem->name); | |
512 | ||
513 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
514 | problem->name); | |
515 | ||
981a3fb3 | 516 | add_prefix_cmd (problem->name, |
3c16cced PA |
517 | class_maintenance, set_internal_problem_cmd, set_doc, |
518 | set_cmd_list, | |
c4f7c687 MK |
519 | concat ("maintenance set ", problem->name, " ", |
520 | (char *) NULL), | |
3c16cced PA |
521 | 0/*allow-unknown*/, &maintenance_set_cmdlist); |
522 | ||
981a3fb3 | 523 | add_prefix_cmd (problem->name, |
3c16cced PA |
524 | class_maintenance, show_internal_problem_cmd, show_doc, |
525 | show_cmd_list, | |
c4f7c687 MK |
526 | concat ("maintenance show ", problem->name, " ", |
527 | (char *) NULL), | |
3c16cced PA |
528 | 0/*allow-unknown*/, &maintenance_show_cmdlist); |
529 | ||
57fcfb1b GB |
530 | if (problem->user_settable_should_quit) |
531 | { | |
532 | set_doc = xstrprintf (_("Set whether GDB should quit " | |
590042fc | 533 | "when an %s is detected."), |
57fcfb1b GB |
534 | problem->name); |
535 | show_doc = xstrprintf (_("Show whether GDB will quit " | |
590042fc | 536 | "when an %s is detected."), |
57fcfb1b GB |
537 | problem->name); |
538 | add_setshow_enum_cmd ("quit", class_maintenance, | |
539 | internal_problem_modes, | |
540 | &problem->should_quit, | |
541 | set_doc, | |
542 | show_doc, | |
543 | NULL, /* help_doc */ | |
544 | NULL, /* setfunc */ | |
545 | NULL, /* showfunc */ | |
546 | set_cmd_list, | |
547 | show_cmd_list); | |
548 | ||
549 | xfree (set_doc); | |
550 | xfree (show_doc); | |
551 | } | |
1eefb858 | 552 | |
57fcfb1b GB |
553 | if (problem->user_settable_should_dump_core) |
554 | { | |
555 | set_doc = xstrprintf (_("Set whether GDB should create a core " | |
590042fc | 556 | "file of GDB when %s is detected."), |
57fcfb1b GB |
557 | problem->name); |
558 | show_doc = xstrprintf (_("Show whether GDB will create a core " | |
590042fc | 559 | "file of GDB when %s is detected."), |
57fcfb1b GB |
560 | problem->name); |
561 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
562 | internal_problem_modes, | |
563 | &problem->should_dump_core, | |
564 | set_doc, | |
565 | show_doc, | |
566 | NULL, /* help_doc */ | |
567 | NULL, /* setfunc */ | |
568 | NULL, /* showfunc */ | |
569 | set_cmd_list, | |
570 | show_cmd_list); | |
571 | ||
572 | xfree (set_doc); | |
573 | xfree (show_doc); | |
574 | } | |
3c16cced PA |
575 | } |
576 | ||
0cf4063e | 577 | /* Return a newly allocated string, containing the PREFIX followed |
18e9961f | 578 | by the system error message for errno (separated by a colon). */ |
0cf4063e | 579 | |
18e9961f | 580 | static std::string |
0cf4063e JB |
581 | perror_string (const char *prefix) |
582 | { | |
583 | char *err; | |
0cf4063e JB |
584 | |
585 | err = safe_strerror (errno); | |
18e9961f | 586 | return std::string (prefix) + ": " + err; |
0cf4063e JB |
587 | } |
588 | ||
c906108c | 589 | /* Print the system error message for errno, and also mention STRING |
598d3636 JK |
590 | as the file name for which the error was encountered. Use ERRCODE |
591 | for the thrown exception. Then return to command level. */ | |
c906108c | 592 | |
c25c4a8b | 593 | void |
598d3636 | 594 | throw_perror_with_name (enum errors errcode, const char *string) |
c906108c | 595 | { |
18e9961f | 596 | std::string combined = perror_string (string); |
c906108c SS |
597 | |
598 | /* I understand setting these is a matter of taste. Still, some people | |
599 | may clear errno but not know about bfd_error. Doing this here is not | |
581e13c1 | 600 | unreasonable. */ |
c906108c SS |
601 | bfd_set_error (bfd_error_no_error); |
602 | errno = 0; | |
603 | ||
18e9961f | 604 | throw_error (errcode, _("%s."), combined.c_str ()); |
598d3636 JK |
605 | } |
606 | ||
607 | /* See throw_perror_with_name, ERRCODE defaults here to GENERIC_ERROR. */ | |
608 | ||
609 | void | |
610 | perror_with_name (const char *string) | |
611 | { | |
612 | throw_perror_with_name (GENERIC_ERROR, string); | |
c906108c SS |
613 | } |
614 | ||
7c647d61 JB |
615 | /* Same as perror_with_name except that it prints a warning instead |
616 | of throwing an error. */ | |
617 | ||
618 | void | |
619 | perror_warning_with_name (const char *string) | |
620 | { | |
18e9961f TT |
621 | std::string combined = perror_string (string); |
622 | warning (_("%s"), combined.c_str ()); | |
7c647d61 JB |
623 | } |
624 | ||
c906108c SS |
625 | /* Print the system error message for ERRCODE, and also mention STRING |
626 | as the file name for which the error was encountered. */ | |
627 | ||
628 | void | |
6972bc8b | 629 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
630 | { |
631 | char *err; | |
632 | char *combined; | |
633 | ||
634 | err = safe_strerror (errcode); | |
635 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
636 | strcpy (combined, string); | |
637 | strcat (combined, ": "); | |
638 | strcat (combined, err); | |
639 | ||
640 | /* We want anything which was printed on stdout to come out first, before | |
641 | this message. */ | |
642 | gdb_flush (gdb_stdout); | |
643 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
644 | } | |
645 | ||
646 | /* Control C eventually causes this to be called, at a convenient time. */ | |
647 | ||
648 | void | |
fba45db2 | 649 | quit (void) |
c906108c | 650 | { |
06c868a8 JK |
651 | if (sync_quit_force_run) |
652 | { | |
653 | sync_quit_force_run = 0; | |
268a799a | 654 | quit_force (NULL, 0); |
06c868a8 JK |
655 | } |
656 | ||
7be570e7 JM |
657 | #ifdef __MSDOS__ |
658 | /* No steenking SIGINT will ever be coming our way when the | |
659 | program is resumed. Don't lie. */ | |
2c51604d | 660 | throw_quit ("Quit"); |
7be570e7 | 661 | #else |
c906108c | 662 | if (job_control |
8731e58e AC |
663 | /* If there is no terminal switching for this target, then we can't |
664 | possibly get screwed by the lack of job control. */ | |
b0ed115f | 665 | || !target_supports_terminal_ours ()) |
2c51604d | 666 | throw_quit ("Quit"); |
c906108c | 667 | else |
2c51604d | 668 | throw_quit ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 669 | #endif |
c906108c SS |
670 | } |
671 | ||
abc56d60 PA |
672 | /* See defs.h. */ |
673 | ||
674 | void | |
675 | maybe_quit (void) | |
676 | { | |
048094ac | 677 | if (sync_quit_force_run) |
abc56d60 | 678 | quit (); |
048094ac PA |
679 | |
680 | quit_handler (); | |
abc56d60 PA |
681 | } |
682 | ||
c906108c | 683 | \f |
c906108c | 684 | /* Called when a memory allocation fails, with the number of bytes of |
581e13c1 | 685 | memory requested in SIZE. */ |
c906108c | 686 | |
c25c4a8b | 687 | void |
d26e3629 | 688 | malloc_failure (long size) |
c906108c SS |
689 | { |
690 | if (size > 0) | |
691 | { | |
8e65ff28 | 692 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 693 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 694 | size); |
c906108c SS |
695 | } |
696 | else | |
697 | { | |
e2e0b3e5 | 698 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
699 | } |
700 | } | |
701 | ||
c906108c SS |
702 | /* My replacement for the read system call. |
703 | Used like `read' but keeps going if `read' returns too soon. */ | |
704 | ||
705 | int | |
fba45db2 | 706 | myread (int desc, char *addr, int len) |
c906108c | 707 | { |
52f0bd74 | 708 | int val; |
c906108c SS |
709 | int orglen = len; |
710 | ||
711 | while (len > 0) | |
712 | { | |
713 | val = read (desc, addr, len); | |
714 | if (val < 0) | |
715 | return val; | |
716 | if (val == 0) | |
717 | return orglen - len; | |
718 | len -= val; | |
719 | addr += val; | |
720 | } | |
721 | return orglen; | |
722 | } | |
d26e3629 | 723 | |
c906108c | 724 | void |
aa1ee363 | 725 | print_spaces (int n, struct ui_file *file) |
c906108c | 726 | { |
392a587b | 727 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
728 | } |
729 | ||
730 | /* Print a host address. */ | |
731 | ||
732 | void | |
b80c3053 | 733 | gdb_print_host_address_1 (const void *addr, struct ui_file *stream) |
c906108c | 734 | { |
ea8992ce | 735 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 736 | } |
7c50a931 | 737 | |
c906108c | 738 | \f |
c5aa993b | 739 | |
223ffa71 TT |
740 | /* An RAII class that sets up to handle input and then tears down |
741 | during destruction. */ | |
3eb7562a | 742 | |
223ffa71 | 743 | class scoped_input_handler |
3eb7562a | 744 | { |
223ffa71 | 745 | public: |
3eb7562a | 746 | |
223ffa71 | 747 | scoped_input_handler () |
c2f97536 | 748 | : m_quit_handler (&quit_handler, default_quit_handler), |
223ffa71 TT |
749 | m_ui (NULL) |
750 | { | |
751 | target_terminal::ours (); | |
752 | ui_register_input_event_handler (current_ui); | |
753 | if (current_ui->prompt_state == PROMPT_BLOCKED) | |
754 | m_ui = current_ui; | |
755 | } | |
3eb7562a | 756 | |
223ffa71 TT |
757 | ~scoped_input_handler () |
758 | { | |
759 | if (m_ui != NULL) | |
760 | ui_unregister_input_event_handler (m_ui); | |
761 | } | |
3eb7562a | 762 | |
223ffa71 | 763 | DISABLE_COPY_AND_ASSIGN (scoped_input_handler); |
3eb7562a | 764 | |
223ffa71 | 765 | private: |
3eb7562a | 766 | |
223ffa71 TT |
767 | /* Save and restore the terminal state. */ |
768 | target_terminal::scoped_restore_terminal_state m_term_state; | |
3eb7562a | 769 | |
223ffa71 | 770 | /* Save and restore the quit handler. */ |
c2f97536 | 771 | scoped_restore_tmpl<quit_handler_ftype *> m_quit_handler; |
223ffa71 TT |
772 | |
773 | /* The saved UI, if non-NULL. */ | |
774 | struct ui *m_ui; | |
775 | }; | |
3eb7562a | 776 | |
db1ff28b JK |
777 | \f |
778 | ||
981c7f5a | 779 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 780 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
781 | answer is yes, or default the answer to the specified default |
782 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
783 | default answer, or '\0' for no default. | |
cbdeadca JJ |
784 | CTLSTR is the control string and should end in "? ". It should |
785 | not say how to answer, because we do that. | |
786 | ARGS are the arguments passed along with the CTLSTR argument to | |
787 | printf. */ | |
788 | ||
a0b31db1 | 789 | static int ATTRIBUTE_PRINTF (1, 0) |
cbdeadca JJ |
790 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
791 | { | |
cbdeadca JJ |
792 | int retval; |
793 | int def_value; | |
794 | char def_answer, not_def_answer; | |
a121b7c1 | 795 | const char *y_string, *n_string; |
cbdeadca JJ |
796 | |
797 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
798 | if (defchar == '\0') |
799 | { | |
800 | def_value = 1; | |
801 | def_answer = 'Y'; | |
802 | not_def_answer = 'N'; | |
803 | y_string = "y"; | |
804 | n_string = "n"; | |
805 | } | |
806 | else if (defchar == 'y') | |
cbdeadca JJ |
807 | { |
808 | def_value = 1; | |
809 | def_answer = 'Y'; | |
810 | not_def_answer = 'N'; | |
811 | y_string = "[y]"; | |
812 | n_string = "n"; | |
813 | } | |
814 | else | |
815 | { | |
816 | def_value = 0; | |
817 | def_answer = 'N'; | |
818 | not_def_answer = 'Y'; | |
819 | y_string = "y"; | |
820 | n_string = "[n]"; | |
821 | } | |
822 | ||
981c7f5a | 823 | /* Automatically answer the default value if the user did not want |
a502cf95 | 824 | prompts or the command was issued with the server prefix. */ |
e360902b | 825 | if (!confirm || server_command) |
981c7f5a DJ |
826 | return def_value; |
827 | ||
828 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 829 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
830 | way, important error messages don't get lost when talking to GDB |
831 | over a pipe. */ | |
268a799a | 832 | if (current_ui->instream != current_ui->stdin_stream |
26a06916 SM |
833 | || !input_interactive_p (current_ui) |
834 | /* Restrict queries to the main UI. */ | |
835 | || current_ui != main_ui) | |
981c7f5a | 836 | { |
223ffa71 TT |
837 | target_terminal::scoped_restore_terminal_state term_state; |
838 | target_terminal::ours_for_output (); | |
981c7f5a DJ |
839 | wrap_here (""); |
840 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
841 | ||
3e43a32a MS |
842 | printf_filtered (_("(%s or %s) [answered %c; " |
843 | "input not from terminal]\n"), | |
981c7f5a | 844 | y_string, n_string, def_answer); |
981c7f5a DJ |
845 | |
846 | return def_value; | |
847 | } | |
848 | ||
9a4105ab | 849 | if (deprecated_query_hook) |
cbdeadca | 850 | { |
223ffa71 TT |
851 | target_terminal::scoped_restore_terminal_state term_state; |
852 | return deprecated_query_hook (ctlstr, args); | |
651ce16a | 853 | } |
80dbc9fd | 854 | |
981c7f5a | 855 | /* Format the question outside of the loop, to avoid reusing args. */ |
e05550d7 TT |
856 | std::string question = string_vprintf (ctlstr, args); |
857 | std::string prompt | |
858 | = string_printf (_("%s%s(%s or %s) %s"), | |
859 | annotation_level > 1 ? "\n\032\032pre-query\n" : "", | |
860 | question.c_str (), y_string, n_string, | |
861 | annotation_level > 1 ? "\n\032\032query\n" : ""); | |
981c7f5a | 862 | |
dcb07cfa PA |
863 | /* Used to add duration we waited for user to respond to |
864 | prompt_for_continue_wait_time. */ | |
865 | using namespace std::chrono; | |
866 | steady_clock::time_point prompt_started = steady_clock::now (); | |
260c0b2a | 867 | |
223ffa71 | 868 | scoped_input_handler prepare_input; |
651ce16a | 869 | |
cbdeadca JJ |
870 | while (1) |
871 | { | |
588dcc3e | 872 | char *response, answer; |
cbdeadca | 873 | |
cbdeadca | 874 | gdb_flush (gdb_stdout); |
e05550d7 | 875 | response = gdb_readline_wrapper (prompt.c_str ()); |
cbdeadca | 876 | |
588dcc3e | 877 | if (response == NULL) /* C-d */ |
cbdeadca | 878 | { |
fa3fd85b | 879 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
880 | retval = def_value; |
881 | break; | |
882 | } | |
588dcc3e PP |
883 | |
884 | answer = response[0]; | |
885 | xfree (response); | |
cbdeadca JJ |
886 | |
887 | if (answer >= 'a') | |
888 | answer -= 040; | |
889 | /* Check answer. For the non-default, the user must specify | |
890 | the non-default explicitly. */ | |
891 | if (answer == not_def_answer) | |
892 | { | |
893 | retval = !def_value; | |
894 | break; | |
895 | } | |
981c7f5a DJ |
896 | /* Otherwise, if a default was specified, the user may either |
897 | specify the required input or have it default by entering | |
898 | nothing. */ | |
899 | if (answer == def_answer | |
588dcc3e | 900 | || (defchar != '\0' && answer == '\0')) |
cbdeadca JJ |
901 | { |
902 | retval = def_value; | |
903 | break; | |
904 | } | |
905 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 906 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
907 | y_string, n_string); |
908 | } | |
909 | ||
260c0b2a | 910 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
dcb07cfa | 911 | prompt_for_continue_wait_time += steady_clock::now () - prompt_started; |
260c0b2a | 912 | |
cbdeadca | 913 | if (annotation_level > 1) |
a3f17187 | 914 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
915 | return retval; |
916 | } | |
917 | \f | |
918 | ||
919 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
920 | answer is yes, or 0 if answer is defaulted. | |
921 | Takes three args which are given to printf to print the question. | |
922 | The first, a control string, should end in "? ". | |
923 | It should not say how to answer, because we do that. */ | |
924 | ||
925 | int | |
926 | nquery (const char *ctlstr, ...) | |
927 | { | |
928 | va_list args; | |
899500d6 | 929 | int ret; |
cbdeadca JJ |
930 | |
931 | va_start (args, ctlstr); | |
899500d6 | 932 | ret = defaulted_query (ctlstr, 'n', args); |
cbdeadca | 933 | va_end (args); |
899500d6 | 934 | return ret; |
cbdeadca JJ |
935 | } |
936 | ||
937 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
938 | answer is yes, or 1 if answer is defaulted. | |
939 | Takes three args which are given to printf to print the question. | |
940 | The first, a control string, should end in "? ". | |
941 | It should not say how to answer, because we do that. */ | |
942 | ||
943 | int | |
944 | yquery (const char *ctlstr, ...) | |
945 | { | |
946 | va_list args; | |
899500d6 | 947 | int ret; |
cbdeadca JJ |
948 | |
949 | va_start (args, ctlstr); | |
899500d6 | 950 | ret = defaulted_query (ctlstr, 'y', args); |
cbdeadca | 951 | va_end (args); |
899500d6 | 952 | return ret; |
cbdeadca JJ |
953 | } |
954 | ||
981c7f5a DJ |
955 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
956 | Takes three args which are given to printf to print the question. | |
957 | The first, a control string, should end in "? ". | |
958 | It should not say how to answer, because we do that. */ | |
959 | ||
960 | int | |
961 | query (const char *ctlstr, ...) | |
962 | { | |
963 | va_list args; | |
899500d6 | 964 | int ret; |
981c7f5a DJ |
965 | |
966 | va_start (args, ctlstr); | |
899500d6 | 967 | ret = defaulted_query (ctlstr, '\0', args); |
981c7f5a | 968 | va_end (args); |
899500d6 | 969 | return ret; |
981c7f5a DJ |
970 | } |
971 | ||
6c7a06a3 TT |
972 | /* A helper for parse_escape that converts a host character to a |
973 | target character. C is the host character. If conversion is | |
974 | possible, then the target character is stored in *TARGET_C and the | |
975 | function returns 1. Otherwise, the function returns 0. */ | |
976 | ||
977 | static int | |
f870a310 | 978 | host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c) |
234b45d4 | 979 | { |
6c7a06a3 | 980 | char the_char = c; |
6c7a06a3 | 981 | int result = 0; |
234b45d4 | 982 | |
8268c778 | 983 | auto_obstack host_data; |
234b45d4 | 984 | |
f870a310 | 985 | convert_between_encodings (target_charset (gdbarch), host_charset (), |
ac91cd70 PA |
986 | (gdb_byte *) &the_char, 1, 1, |
987 | &host_data, translit_none); | |
6c7a06a3 TT |
988 | |
989 | if (obstack_object_size (&host_data) == 1) | |
990 | { | |
991 | result = 1; | |
992 | *target_c = *(char *) obstack_base (&host_data); | |
993 | } | |
994 | ||
6c7a06a3 | 995 | return result; |
234b45d4 KB |
996 | } |
997 | ||
c906108c SS |
998 | /* Parse a C escape sequence. STRING_PTR points to a variable |
999 | containing a pointer to the string to parse. That pointer | |
1000 | should point to the character after the \. That pointer | |
1001 | is updated past the characters we use. The value of the | |
1002 | escape sequence is returned. | |
1003 | ||
1004 | A negative value means the sequence \ newline was seen, | |
1005 | which is supposed to be equivalent to nothing at all. | |
1006 | ||
1007 | If \ is followed by a null character, we return a negative | |
1008 | value and leave the string pointer pointing at the null character. | |
1009 | ||
1010 | If \ is followed by 000, we return 0 and leave the string pointer | |
1011 | after the zeros. A value of 0 does not mean end of string. */ | |
1012 | ||
1013 | int | |
d7561cbb | 1014 | parse_escape (struct gdbarch *gdbarch, const char **string_ptr) |
c906108c | 1015 | { |
581e13c1 | 1016 | int target_char = -2; /* Initialize to avoid GCC warnings. */ |
52f0bd74 | 1017 | int c = *(*string_ptr)++; |
e0627e85 | 1018 | |
6c7a06a3 TT |
1019 | switch (c) |
1020 | { | |
8731e58e AC |
1021 | case '\n': |
1022 | return -2; | |
1023 | case 0: | |
1024 | (*string_ptr)--; | |
1025 | return 0; | |
8731e58e AC |
1026 | |
1027 | case '0': | |
1028 | case '1': | |
1029 | case '2': | |
1030 | case '3': | |
1031 | case '4': | |
1032 | case '5': | |
1033 | case '6': | |
1034 | case '7': | |
1035 | { | |
6c7a06a3 | 1036 | int i = host_hex_value (c); |
aa1ee363 | 1037 | int count = 0; |
8731e58e AC |
1038 | while (++count < 3) |
1039 | { | |
5cb316ef | 1040 | c = (**string_ptr); |
6c7a06a3 | 1041 | if (isdigit (c) && c != '8' && c != '9') |
8731e58e | 1042 | { |
5cb316ef | 1043 | (*string_ptr)++; |
8731e58e | 1044 | i *= 8; |
6c7a06a3 | 1045 | i += host_hex_value (c); |
8731e58e AC |
1046 | } |
1047 | else | |
1048 | { | |
8731e58e AC |
1049 | break; |
1050 | } | |
1051 | } | |
1052 | return i; | |
1053 | } | |
6c7a06a3 TT |
1054 | |
1055 | case 'a': | |
1056 | c = '\a'; | |
1057 | break; | |
1058 | case 'b': | |
1059 | c = '\b'; | |
1060 | break; | |
1061 | case 'f': | |
1062 | c = '\f'; | |
1063 | break; | |
1064 | case 'n': | |
1065 | c = '\n'; | |
1066 | break; | |
1067 | case 'r': | |
1068 | c = '\r'; | |
1069 | break; | |
1070 | case 't': | |
1071 | c = '\t'; | |
1072 | break; | |
1073 | case 'v': | |
1074 | c = '\v'; | |
1075 | break; | |
1076 | ||
1077 | default: | |
1078 | break; | |
1079 | } | |
1080 | ||
f870a310 | 1081 | if (!host_char_to_target (gdbarch, c, &target_char)) |
3351ea09 JB |
1082 | error (_("The escape sequence `\\%c' is equivalent to plain `%c'," |
1083 | " which has no equivalent\nin the `%s' character set."), | |
905b671b | 1084 | c, c, target_charset (gdbarch)); |
6c7a06a3 | 1085 | return target_char; |
c906108c SS |
1086 | } |
1087 | \f | |
1088 | /* Print the character C on STREAM as part of the contents of a literal | |
1089 | string whose delimiter is QUOTER. Note that this routine should only | |
f9acce4a | 1090 | be called for printing things which are independent of the language |
6ef284bd SM |
1091 | of the program being debugged. |
1092 | ||
1093 | printchar will normally escape backslashes and instances of QUOTER. If | |
1094 | QUOTER is 0, printchar won't escape backslashes or any quoting character. | |
1095 | As a side effect, if you pass the backslash character as the QUOTER, | |
1096 | printchar will escape backslashes as usual, but not any other quoting | |
1097 | character. */ | |
c906108c | 1098 | |
43e526b9 | 1099 | static void |
7c4e78cf | 1100 | printchar (int c, do_fputc_ftype do_fputc, ui_file *stream, int quoter) |
c906108c | 1101 | { |
c906108c SS |
1102 | c &= 0xFF; /* Avoid sign bit follies */ |
1103 | ||
c5aa993b JM |
1104 | if (c < 0x20 || /* Low control chars */ |
1105 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1106 | (sevenbit_strings && c >= 0x80)) | |
1107 | { /* high order bit set */ | |
7c4e78cf SM |
1108 | do_fputc ('\\', stream); |
1109 | ||
c5aa993b JM |
1110 | switch (c) |
1111 | { | |
1112 | case '\n': | |
7c4e78cf | 1113 | do_fputc ('n', stream); |
c5aa993b JM |
1114 | break; |
1115 | case '\b': | |
7c4e78cf | 1116 | do_fputc ('b', stream); |
c5aa993b JM |
1117 | break; |
1118 | case '\t': | |
7c4e78cf | 1119 | do_fputc ('t', stream); |
c5aa993b JM |
1120 | break; |
1121 | case '\f': | |
7c4e78cf | 1122 | do_fputc ('f', stream); |
c5aa993b JM |
1123 | break; |
1124 | case '\r': | |
7c4e78cf | 1125 | do_fputc ('r', stream); |
c5aa993b JM |
1126 | break; |
1127 | case '\033': | |
7c4e78cf | 1128 | do_fputc ('e', stream); |
c5aa993b JM |
1129 | break; |
1130 | case '\007': | |
7c4e78cf | 1131 | do_fputc ('a', stream); |
c5aa993b JM |
1132 | break; |
1133 | default: | |
7c4e78cf SM |
1134 | { |
1135 | do_fputc ('0' + ((c >> 6) & 0x7), stream); | |
1136 | do_fputc ('0' + ((c >> 3) & 0x7), stream); | |
1137 | do_fputc ('0' + ((c >> 0) & 0x7), stream); | |
1138 | break; | |
1139 | } | |
c5aa993b JM |
1140 | } |
1141 | } | |
1142 | else | |
1143 | { | |
6ef284bd | 1144 | if (quoter != 0 && (c == '\\' || c == quoter)) |
7c4e78cf SM |
1145 | do_fputc ('\\', stream); |
1146 | do_fputc (c, stream); | |
c5aa993b | 1147 | } |
c906108c | 1148 | } |
43e526b9 JM |
1149 | |
1150 | /* Print the character C on STREAM as part of the contents of a | |
1151 | literal string whose delimiter is QUOTER. Note that these routines | |
1152 | should only be call for printing things which are independent of | |
581e13c1 | 1153 | the language of the program being debugged. */ |
43e526b9 JM |
1154 | |
1155 | void | |
fba45db2 | 1156 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1157 | { |
1158 | while (*str) | |
7c4e78cf | 1159 | printchar (*str++, fputc_filtered, stream, quoter); |
43e526b9 JM |
1160 | } |
1161 | ||
1162 | void | |
fba45db2 | 1163 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1164 | { |
1165 | while (*str) | |
7c4e78cf | 1166 | printchar (*str++, fputc_unfiltered, stream, quoter); |
43e526b9 JM |
1167 | } |
1168 | ||
0876f84a DJ |
1169 | void |
1170 | fputstrn_filtered (const char *str, int n, int quoter, | |
1171 | struct ui_file *stream) | |
1172 | { | |
7c4e78cf SM |
1173 | for (int i = 0; i < n; i++) |
1174 | printchar (str[i], fputc_filtered, stream, quoter); | |
0876f84a DJ |
1175 | } |
1176 | ||
43e526b9 | 1177 | void |
8731e58e | 1178 | fputstrn_unfiltered (const char *str, int n, int quoter, |
7c4e78cf | 1179 | do_fputc_ftype do_fputc, struct ui_file *stream) |
43e526b9 | 1180 | { |
7c4e78cf SM |
1181 | for (int i = 0; i < n; i++) |
1182 | printchar (str[i], do_fputc, stream, quoter); | |
43e526b9 | 1183 | } |
c906108c | 1184 | \f |
c5aa993b | 1185 | |
c906108c SS |
1186 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1187 | static unsigned int lines_per_page; | |
920d2a44 AC |
1188 | static void |
1189 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1190 | struct cmd_list_element *c, const char *value) | |
1191 | { | |
3e43a32a MS |
1192 | fprintf_filtered (file, |
1193 | _("Number of lines gdb thinks are in a page is %s.\n"), | |
920d2a44 AC |
1194 | value); |
1195 | } | |
eb0d3137 | 1196 | |
cbfbd72a | 1197 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1198 | static unsigned int chars_per_line; |
920d2a44 AC |
1199 | static void |
1200 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1201 | struct cmd_list_element *c, const char *value) | |
1202 | { | |
3e43a32a MS |
1203 | fprintf_filtered (file, |
1204 | _("Number of characters gdb thinks " | |
1205 | "are in a line is %s.\n"), | |
920d2a44 AC |
1206 | value); |
1207 | } | |
eb0d3137 | 1208 | |
c906108c SS |
1209 | /* Current count of lines printed on this page, chars on this line. */ |
1210 | static unsigned int lines_printed, chars_printed; | |
1211 | ||
eb6af809 TT |
1212 | /* True if pagination is disabled for just one command. */ |
1213 | ||
1214 | static bool pagination_disabled_for_command; | |
1215 | ||
c906108c SS |
1216 | /* Buffer and start column of buffered text, for doing smarter word- |
1217 | wrapping. When someone calls wrap_here(), we start buffering output | |
1218 | that comes through fputs_filtered(). If we see a newline, we just | |
1219 | spit it out and forget about the wrap_here(). If we see another | |
1220 | wrap_here(), we spit it out and remember the newer one. If we see | |
1221 | the end of the line, we spit out a newline, the indent, and then | |
1222 | the buffered output. */ | |
1223 | ||
c5603d50 | 1224 | static bool filter_initialized = false; |
c906108c | 1225 | |
c5603d50 TT |
1226 | /* Contains characters which are waiting to be output (they have |
1227 | already been counted in chars_printed). */ | |
1228 | static std::string wrap_buffer; | |
c906108c SS |
1229 | |
1230 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1231 | is non-zero. */ | |
d2c0eef4 | 1232 | static const char *wrap_indent; |
c906108c SS |
1233 | |
1234 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1235 | is not in effect. */ | |
1236 | static int wrap_column; | |
a0087920 TT |
1237 | |
1238 | /* The style applied at the time that wrap_here was called. */ | |
1239 | static ui_file_style wrap_style; | |
c906108c | 1240 | \f |
c5aa993b | 1241 | |
26c4b26f | 1242 | /* Initialize the number of lines per page and chars per line. */ |
eb0d3137 | 1243 | |
c906108c | 1244 | void |
fba45db2 | 1245 | init_page_info (void) |
c906108c | 1246 | { |
5da1313b JK |
1247 | if (batch_flag) |
1248 | { | |
1249 | lines_per_page = UINT_MAX; | |
1250 | chars_per_line = UINT_MAX; | |
1251 | } | |
1252 | else | |
c906108c | 1253 | #if defined(TUI) |
5ecb1806 | 1254 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1255 | #endif |
1256 | { | |
eb0d3137 | 1257 | int rows, cols; |
c906108c | 1258 | |
ec145965 EZ |
1259 | #if defined(__GO32__) |
1260 | rows = ScreenRows (); | |
1261 | cols = ScreenCols (); | |
1262 | lines_per_page = rows; | |
1263 | chars_per_line = cols; | |
1264 | #else | |
eb0d3137 MK |
1265 | /* Make sure Readline has initialized its terminal settings. */ |
1266 | rl_reset_terminal (NULL); | |
c906108c | 1267 | |
eb0d3137 MK |
1268 | /* Get the screen size from Readline. */ |
1269 | rl_get_screen_size (&rows, &cols); | |
1270 | lines_per_page = rows; | |
1271 | chars_per_line = cols; | |
c906108c | 1272 | |
1a66331e PM |
1273 | /* Readline should have fetched the termcap entry for us. |
1274 | Only try to use tgetnum function if rl_get_screen_size | |
1275 | did not return a useful value. */ | |
a121b7c1 | 1276 | if (((rows <= 0) && (tgetnum ((char *) "li") < 0)) |
e681cf3f EZ |
1277 | /* Also disable paging if inside Emacs. $EMACS was used |
1278 | before Emacs v25.1, $INSIDE_EMACS is used since then. */ | |
1279 | || getenv ("EMACS") || getenv ("INSIDE_EMACS")) | |
eb0d3137 | 1280 | { |
1a66331e PM |
1281 | /* The number of lines per page is not mentioned in the terminal |
1282 | description or EMACS evironment variable is set. This probably | |
1283 | means that paging is not useful, so disable paging. */ | |
eb0d3137 MK |
1284 | lines_per_page = UINT_MAX; |
1285 | } | |
c906108c | 1286 | |
c906108c | 1287 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1288 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1289 | lines_per_page = UINT_MAX; |
eb0d3137 | 1290 | #endif |
ec145965 | 1291 | } |
eb0d3137 | 1292 | |
24b73f8e PP |
1293 | /* We handle SIGWINCH ourselves. */ |
1294 | rl_catch_sigwinch = 0; | |
1295 | ||
eb0d3137 | 1296 | set_screen_size (); |
c5aa993b | 1297 | set_width (); |
c906108c SS |
1298 | } |
1299 | ||
2437fd32 GB |
1300 | /* Return nonzero if filtered printing is initialized. */ |
1301 | int | |
1302 | filtered_printing_initialized (void) | |
1303 | { | |
c5603d50 | 1304 | return filter_initialized; |
2437fd32 GB |
1305 | } |
1306 | ||
b95de2b7 TT |
1307 | set_batch_flag_and_restore_page_info::set_batch_flag_and_restore_page_info () |
1308 | : m_save_lines_per_page (lines_per_page), | |
1309 | m_save_chars_per_line (chars_per_line), | |
1310 | m_save_batch_flag (batch_flag) | |
5da1313b | 1311 | { |
b95de2b7 TT |
1312 | batch_flag = 1; |
1313 | init_page_info (); | |
5da1313b JK |
1314 | } |
1315 | ||
b95de2b7 | 1316 | set_batch_flag_and_restore_page_info::~set_batch_flag_and_restore_page_info () |
5da1313b | 1317 | { |
b95de2b7 TT |
1318 | batch_flag = m_save_batch_flag; |
1319 | chars_per_line = m_save_chars_per_line; | |
1320 | lines_per_page = m_save_lines_per_page; | |
5da1313b | 1321 | |
b95de2b7 TT |
1322 | set_screen_size (); |
1323 | set_width (); | |
5da1313b JK |
1324 | } |
1325 | ||
eb0d3137 MK |
1326 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1327 | ||
1328 | static void | |
1329 | set_screen_size (void) | |
1330 | { | |
1331 | int rows = lines_per_page; | |
1332 | int cols = chars_per_line; | |
1333 | ||
23031e31 SJ |
1334 | /* If we get 0 or negative ROWS or COLS, treat as "infinite" size. |
1335 | A negative number can be seen here with the "set width/height" | |
1336 | commands and either: | |
eb0d3137 | 1337 | |
23031e31 SJ |
1338 | - the user specified "unlimited", which maps to UINT_MAX, or |
1339 | - the user spedified some number between INT_MAX and UINT_MAX. | |
1340 | ||
1341 | Cap "infinity" to approximately sqrt(INT_MAX) so that we don't | |
1342 | overflow in rl_set_screen_size, which multiplies rows and columns | |
1343 | to compute the number of characters on the screen. */ | |
1344 | ||
1345 | const int sqrt_int_max = INT_MAX >> (sizeof (int) * 8 / 2); | |
1346 | ||
1347 | if (rows <= 0 || rows > sqrt_int_max) | |
8ed25214 PA |
1348 | { |
1349 | rows = sqrt_int_max; | |
1350 | lines_per_page = UINT_MAX; | |
1351 | } | |
23031e31 SJ |
1352 | |
1353 | if (cols <= 0 || cols > sqrt_int_max) | |
8ed25214 PA |
1354 | { |
1355 | cols = sqrt_int_max; | |
1356 | chars_per_line = UINT_MAX; | |
1357 | } | |
eb0d3137 MK |
1358 | |
1359 | /* Update Readline's idea of the terminal size. */ | |
1360 | rl_set_screen_size (rows, cols); | |
1361 | } | |
1362 | ||
c5603d50 | 1363 | /* Reinitialize WRAP_BUFFER. */ |
eb0d3137 | 1364 | |
c906108c | 1365 | static void |
fba45db2 | 1366 | set_width (void) |
c906108c SS |
1367 | { |
1368 | if (chars_per_line == 0) | |
c5aa993b | 1369 | init_page_info (); |
c906108c | 1370 | |
c5603d50 TT |
1371 | wrap_buffer.clear (); |
1372 | filter_initialized = true; | |
c906108c SS |
1373 | } |
1374 | ||
c5aa993b | 1375 | static void |
eb4c3f4a | 1376 | set_width_command (const char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1377 | { |
eb0d3137 | 1378 | set_screen_size (); |
c906108c SS |
1379 | set_width (); |
1380 | } | |
1381 | ||
eb0d3137 | 1382 | static void |
eb4c3f4a | 1383 | set_height_command (const char *args, int from_tty, struct cmd_list_element *c) |
eb0d3137 MK |
1384 | { |
1385 | set_screen_size (); | |
1386 | } | |
1387 | ||
d6e5e7f7 PP |
1388 | /* See utils.h. */ |
1389 | ||
1390 | void | |
1391 | set_screen_width_and_height (int width, int height) | |
1392 | { | |
1393 | lines_per_page = height; | |
1394 | chars_per_line = width; | |
1395 | ||
1396 | set_screen_size (); | |
1397 | set_width (); | |
1398 | } | |
1399 | ||
cbe56571 TT |
1400 | /* The currently applied style. */ |
1401 | ||
1402 | static ui_file_style applied_style; | |
1403 | ||
a0087920 TT |
1404 | /* Emit an ANSI style escape for STYLE. If STREAM is nullptr, emit to |
1405 | the wrap buffer; otherwise emit to STREAM. */ | |
cbe56571 TT |
1406 | |
1407 | static void | |
a0087920 TT |
1408 | emit_style_escape (const ui_file_style &style, |
1409 | struct ui_file *stream = nullptr) | |
cbe56571 | 1410 | { |
cbe56571 TT |
1411 | applied_style = style; |
1412 | ||
a0087920 TT |
1413 | if (stream == nullptr) |
1414 | wrap_buffer.append (style.to_ansi ()); | |
1415 | else | |
1416 | fputs_unfiltered (style.to_ansi ().c_str (), stream); | |
cbe56571 TT |
1417 | } |
1418 | ||
ef1dfa36 TT |
1419 | /* Set the current output style. This will affect future uses of the |
1420 | _filtered output functions. */ | |
1421 | ||
1422 | static void | |
1423 | set_output_style (struct ui_file *stream, const ui_file_style &style) | |
1424 | { | |
8a522c6c | 1425 | if (!stream->can_emit_style_escape ()) |
cbe56571 TT |
1426 | return; |
1427 | ||
046bebe1 | 1428 | /* Note that we may not pass STREAM here, when we want to emit to |
a0087920 | 1429 | the wrap buffer, not directly to STREAM. */ |
046bebe1 TT |
1430 | if (stream == gdb_stdout) |
1431 | stream = nullptr; | |
1432 | emit_style_escape (style, stream); | |
cbe56571 TT |
1433 | } |
1434 | ||
ef1dfa36 TT |
1435 | /* See utils.h. */ |
1436 | ||
1437 | void | |
1438 | reset_terminal_style (struct ui_file *stream) | |
1439 | { | |
8a522c6c | 1440 | if (stream->can_emit_style_escape ()) |
ef1dfa36 TT |
1441 | { |
1442 | /* Force the setting, regardless of what we think the setting | |
1443 | might already be. */ | |
a0087920 TT |
1444 | applied_style = ui_file_style (); |
1445 | wrap_buffer.append (applied_style.to_ansi ()); | |
ef1dfa36 TT |
1446 | } |
1447 | } | |
1448 | ||
c906108c | 1449 | /* Wait, so the user can read what's on the screen. Prompt the user |
720d2e96 PA |
1450 | to continue by pressing RETURN. 'q' is also provided because |
1451 | telling users what to do in the prompt is more user-friendly than | |
1452 | expecting them to think of Ctrl-C/SIGINT. */ | |
c906108c SS |
1453 | |
1454 | static void | |
fba45db2 | 1455 | prompt_for_continue (void) |
c906108c | 1456 | { |
c906108c | 1457 | char cont_prompt[120]; |
260c0b2a DE |
1458 | /* Used to add duration we waited for user to respond to |
1459 | prompt_for_continue_wait_time. */ | |
dcb07cfa PA |
1460 | using namespace std::chrono; |
1461 | steady_clock::time_point prompt_started = steady_clock::now (); | |
eb6af809 | 1462 | bool disable_pagination = pagination_disabled_for_command; |
c906108c | 1463 | |
cbe56571 | 1464 | /* Clear the current styling. */ |
8a522c6c | 1465 | if (gdb_stdout->can_emit_style_escape ()) |
a0087920 | 1466 | emit_style_escape (ui_file_style (), gdb_stdout); |
cbe56571 | 1467 | |
c906108c | 1468 | if (annotation_level > 1) |
a3f17187 | 1469 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
1470 | |
1471 | strcpy (cont_prompt, | |
eb6af809 TT |
1472 | "--Type <RET> for more, q to quit, " |
1473 | "c to continue without paging--"); | |
c906108c SS |
1474 | if (annotation_level > 1) |
1475 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1476 | ||
720d2e96 PA |
1477 | /* We must do this *before* we call gdb_readline_wrapper, else it |
1478 | will eventually call us -- thinking that we're trying to print | |
1479 | beyond the end of the screen. */ | |
c906108c SS |
1480 | reinitialize_more_filter (); |
1481 | ||
223ffa71 | 1482 | scoped_input_handler prepare_input; |
82584158 | 1483 | |
720d2e96 PA |
1484 | /* Call gdb_readline_wrapper, not readline, in order to keep an |
1485 | event loop running. */ | |
5aa89276 | 1486 | gdb::unique_xmalloc_ptr<char> ignore (gdb_readline_wrapper (cont_prompt)); |
c906108c | 1487 | |
260c0b2a | 1488 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
dcb07cfa | 1489 | prompt_for_continue_wait_time += steady_clock::now () - prompt_started; |
260c0b2a | 1490 | |
c906108c | 1491 | if (annotation_level > 1) |
a3f17187 | 1492 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c | 1493 | |
80dbc9fd | 1494 | if (ignore != NULL) |
c906108c | 1495 | { |
5aa89276 | 1496 | char *p = ignore.get (); |
5d502164 | 1497 | |
c906108c SS |
1498 | while (*p == ' ' || *p == '\t') |
1499 | ++p; | |
1500 | if (p[0] == 'q') | |
1690b616 SL |
1501 | /* Do not call quit here; there is no possibility of SIGINT. */ |
1502 | throw_quit ("Quit"); | |
eb6af809 TT |
1503 | if (p[0] == 'c') |
1504 | disable_pagination = true; | |
c906108c | 1505 | } |
c906108c SS |
1506 | |
1507 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1508 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1509 | reinitialize_more_filter (); | |
eb6af809 | 1510 | pagination_disabled_for_command = disable_pagination; |
c906108c | 1511 | |
581e13c1 | 1512 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ |
c906108c SS |
1513 | } |
1514 | ||
26c4b26f | 1515 | /* Initialize timer to keep track of how long we waited for the user. */ |
bd712aed DE |
1516 | |
1517 | void | |
1518 | reset_prompt_for_continue_wait_time (void) | |
1519 | { | |
dcb07cfa | 1520 | using namespace std::chrono; |
bd712aed | 1521 | |
dcb07cfa | 1522 | prompt_for_continue_wait_time = steady_clock::duration::zero (); |
bd712aed DE |
1523 | } |
1524 | ||
1525 | /* Fetch the cumulative time spent in prompt_for_continue. */ | |
1526 | ||
dcb07cfa PA |
1527 | std::chrono::steady_clock::duration |
1528 | get_prompt_for_continue_wait_time () | |
bd712aed DE |
1529 | { |
1530 | return prompt_for_continue_wait_time; | |
1531 | } | |
1532 | ||
c906108c SS |
1533 | /* Reinitialize filter; ie. tell it to reset to original values. */ |
1534 | ||
1535 | void | |
fba45db2 | 1536 | reinitialize_more_filter (void) |
c906108c SS |
1537 | { |
1538 | lines_printed = 0; | |
1539 | chars_printed = 0; | |
eb6af809 | 1540 | pagination_disabled_for_command = false; |
c906108c SS |
1541 | } |
1542 | ||
c5603d50 TT |
1543 | /* Flush the wrap buffer to STREAM, if necessary. */ |
1544 | ||
1545 | static void | |
1546 | flush_wrap_buffer (struct ui_file *stream) | |
1547 | { | |
a0087920 | 1548 | if (stream == gdb_stdout && !wrap_buffer.empty ()) |
c5603d50 TT |
1549 | { |
1550 | fputs_unfiltered (wrap_buffer.c_str (), stream); | |
1551 | wrap_buffer.clear (); | |
1552 | } | |
1553 | } | |
1554 | ||
c906108c | 1555 | /* Indicate that if the next sequence of characters overflows the line, |
581e13c1 | 1556 | a newline should be inserted here rather than when it hits the end. |
c906108c SS |
1557 | If INDENT is non-null, it is a string to be printed to indent the |
1558 | wrapped part on the next line. INDENT must remain accessible until | |
1559 | the next call to wrap_here() or until a newline is printed through | |
1560 | fputs_filtered(). | |
1561 | ||
1562 | If the line is already overfull, we immediately print a newline and | |
1563 | the indentation, and disable further wrapping. | |
1564 | ||
1565 | If we don't know the width of lines, but we know the page height, | |
1566 | we must not wrap words, but should still keep track of newlines | |
1567 | that were explicitly printed. | |
1568 | ||
1569 | INDENT should not contain tabs, as that will mess up the char count | |
1570 | on the next line. FIXME. | |
1571 | ||
1572 | This routine is guaranteed to force out any output which has been | |
1573 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1574 | used to force out output from the wrap_buffer. */ | |
1575 | ||
1576 | void | |
d2c0eef4 | 1577 | wrap_here (const char *indent) |
c906108c | 1578 | { |
581e13c1 | 1579 | /* This should have been allocated, but be paranoid anyway. */ |
c5603d50 | 1580 | if (!filter_initialized) |
3e43a32a MS |
1581 | internal_error (__FILE__, __LINE__, |
1582 | _("failed internal consistency check")); | |
c906108c | 1583 | |
c5603d50 | 1584 | flush_wrap_buffer (gdb_stdout); |
3e43a32a | 1585 | if (chars_per_line == UINT_MAX) /* No line overflow checking. */ |
c906108c SS |
1586 | { |
1587 | wrap_column = 0; | |
1588 | } | |
1589 | else if (chars_printed >= chars_per_line) | |
1590 | { | |
1591 | puts_filtered ("\n"); | |
1592 | if (indent != NULL) | |
1593 | puts_filtered (indent); | |
1594 | wrap_column = 0; | |
1595 | } | |
1596 | else | |
1597 | { | |
1598 | wrap_column = chars_printed; | |
1599 | if (indent == NULL) | |
1600 | wrap_indent = ""; | |
1601 | else | |
1602 | wrap_indent = indent; | |
a0087920 | 1603 | wrap_style = applied_style; |
c906108c SS |
1604 | } |
1605 | } | |
1606 | ||
4a351cef | 1607 | /* Print input string to gdb_stdout, filtered, with wrap, |
581e13c1 | 1608 | arranging strings in columns of n chars. String can be |
4a351cef AF |
1609 | right or left justified in the column. Never prints |
1610 | trailing spaces. String should never be longer than | |
1611 | width. FIXME: this could be useful for the EXAMINE | |
581e13c1 | 1612 | command, which currently doesn't tabulate very well. */ |
4a351cef AF |
1613 | |
1614 | void | |
1615 | puts_filtered_tabular (char *string, int width, int right) | |
1616 | { | |
1617 | int spaces = 0; | |
1618 | int stringlen; | |
1619 | char *spacebuf; | |
1620 | ||
1621 | gdb_assert (chars_per_line > 0); | |
1622 | if (chars_per_line == UINT_MAX) | |
1623 | { | |
1624 | fputs_filtered (string, gdb_stdout); | |
1625 | fputs_filtered ("\n", gdb_stdout); | |
1626 | return; | |
1627 | } | |
1628 | ||
1629 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
1630 | fputs_filtered ("\n", gdb_stdout); | |
1631 | ||
1632 | if (width >= chars_per_line) | |
1633 | width = chars_per_line - 1; | |
1634 | ||
1635 | stringlen = strlen (string); | |
1636 | ||
1637 | if (chars_printed > 0) | |
1638 | spaces = width - (chars_printed - 1) % width - 1; | |
1639 | if (right) | |
1640 | spaces += width - stringlen; | |
1641 | ||
224c3ddb | 1642 | spacebuf = (char *) alloca (spaces + 1); |
4a351cef AF |
1643 | spacebuf[spaces] = '\0'; |
1644 | while (spaces--) | |
1645 | spacebuf[spaces] = ' '; | |
1646 | ||
1647 | fputs_filtered (spacebuf, gdb_stdout); | |
1648 | fputs_filtered (string, gdb_stdout); | |
1649 | } | |
1650 | ||
1651 | ||
c906108c | 1652 | /* Ensure that whatever gets printed next, using the filtered output |
581e13c1 | 1653 | commands, starts at the beginning of the line. I.e. if there is |
c906108c | 1654 | any pending output for the current line, flush it and start a new |
581e13c1 | 1655 | line. Otherwise do nothing. */ |
c906108c SS |
1656 | |
1657 | void | |
fba45db2 | 1658 | begin_line (void) |
c906108c SS |
1659 | { |
1660 | if (chars_printed > 0) | |
1661 | { | |
1662 | puts_filtered ("\n"); | |
1663 | } | |
1664 | } | |
1665 | ||
ac9a91a7 | 1666 | |
c906108c SS |
1667 | /* Like fputs but if FILTER is true, pause after every screenful. |
1668 | ||
1669 | Regardless of FILTER can wrap at points other than the final | |
1670 | character of a line. | |
1671 | ||
1672 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
1673 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
1674 | anything. | |
1675 | ||
1676 | Note that a longjmp to top level may occur in this routine (only if | |
1677 | FILTER is true) (since prompt_for_continue may do so) so this | |
1678 | routine should not be called when cleanups are not in place. */ | |
1679 | ||
1680 | static void | |
fba45db2 KB |
1681 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
1682 | int filter) | |
c906108c SS |
1683 | { |
1684 | const char *lineptr; | |
1685 | ||
1686 | if (linebuffer == 0) | |
1687 | return; | |
1688 | ||
1689 | /* Don't do any filtering if it is disabled. */ | |
390a8aca | 1690 | if (stream != gdb_stdout |
b2e7f004 | 1691 | || !pagination_enabled |
eb6af809 | 1692 | || pagination_disabled_for_command |
b2e7f004 | 1693 | || batch_flag |
390a8aca | 1694 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) |
58dadb1b | 1695 | || top_level_interpreter () == NULL |
29f94340 | 1696 | || top_level_interpreter ()->interp_ui_out ()->is_mi_like_p ()) |
c906108c | 1697 | { |
c5603d50 | 1698 | flush_wrap_buffer (stream); |
c906108c SS |
1699 | fputs_unfiltered (linebuffer, stream); |
1700 | return; | |
1701 | } | |
1702 | ||
a0087920 TT |
1703 | auto buffer_clearer |
1704 | = make_scope_exit ([&] () | |
1705 | { | |
1706 | wrap_buffer.clear (); | |
1707 | wrap_column = 0; | |
1708 | wrap_indent = ""; | |
1709 | }); | |
1710 | ||
c906108c SS |
1711 | /* Go through and output each character. Show line extension |
1712 | when this is necessary; prompt user for new page when this is | |
1713 | necessary. */ | |
c5aa993b | 1714 | |
c906108c SS |
1715 | lineptr = linebuffer; |
1716 | while (*lineptr) | |
1717 | { | |
eb6af809 TT |
1718 | /* Possible new page. Note that PAGINATION_DISABLED_FOR_COMMAND |
1719 | might be set during this loop, so we must continue to check | |
1720 | it here. */ | |
1721 | if (filter && (lines_printed >= lines_per_page - 1) | |
1722 | && !pagination_disabled_for_command) | |
c906108c SS |
1723 | prompt_for_continue (); |
1724 | ||
1725 | while (*lineptr && *lineptr != '\n') | |
1726 | { | |
a0087920 TT |
1727 | int skip_bytes; |
1728 | ||
c906108c SS |
1729 | /* Print a single line. */ |
1730 | if (*lineptr == '\t') | |
1731 | { | |
c5603d50 | 1732 | wrap_buffer.push_back ('\t'); |
c906108c SS |
1733 | /* Shifting right by 3 produces the number of tab stops |
1734 | we have already passed, and then adding one and | |
c5aa993b | 1735 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
1736 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
1737 | lineptr++; | |
1738 | } | |
a0087920 TT |
1739 | else if (*lineptr == '\033' |
1740 | && skip_ansi_escape (lineptr, &skip_bytes)) | |
1741 | { | |
1742 | wrap_buffer.append (lineptr, skip_bytes); | |
1743 | /* Note that we don't consider this a character, so we | |
1744 | don't increment chars_printed here. */ | |
1745 | lineptr += skip_bytes; | |
1746 | } | |
c906108c SS |
1747 | else |
1748 | { | |
c5603d50 | 1749 | wrap_buffer.push_back (*lineptr); |
c906108c SS |
1750 | chars_printed++; |
1751 | lineptr++; | |
1752 | } | |
c5aa993b | 1753 | |
c906108c SS |
1754 | if (chars_printed >= chars_per_line) |
1755 | { | |
1756 | unsigned int save_chars = chars_printed; | |
1757 | ||
99f20f08 TT |
1758 | /* If we change the style, below, we'll want to reset it |
1759 | before continuing to print. If there is no wrap | |
1760 | column, then we'll only reset the style if the pager | |
1761 | prompt is given; and to avoid emitting style | |
1762 | sequences in the middle of a run of text, we track | |
1763 | this as well. */ | |
1764 | ui_file_style save_style; | |
1765 | bool did_paginate = false; | |
1766 | ||
c906108c SS |
1767 | chars_printed = 0; |
1768 | lines_printed++; | |
c906108c | 1769 | if (wrap_column) |
cbe56571 | 1770 | { |
99f20f08 | 1771 | save_style = wrap_style; |
8a522c6c | 1772 | if (stream->can_emit_style_escape ()) |
a0087920 TT |
1773 | emit_style_escape (ui_file_style (), stream); |
1774 | /* If we aren't actually wrapping, don't output | |
1775 | newline -- if chars_per_line is right, we | |
1776 | probably just overflowed anyway; if it's wrong, | |
1777 | let us keep going. */ | |
cbe56571 TT |
1778 | fputc_unfiltered ('\n', stream); |
1779 | } | |
a0087920 | 1780 | else |
99f20f08 TT |
1781 | { |
1782 | save_style = applied_style; | |
1783 | flush_wrap_buffer (stream); | |
1784 | } | |
c906108c | 1785 | |
eb6af809 TT |
1786 | /* Possible new page. Note that |
1787 | PAGINATION_DISABLED_FOR_COMMAND might be set during | |
1788 | this loop, so we must continue to check it here. */ | |
1789 | if (lines_printed >= lines_per_page - 1 | |
1790 | && !pagination_disabled_for_command) | |
99f20f08 TT |
1791 | { |
1792 | prompt_for_continue (); | |
1793 | did_paginate = true; | |
1794 | } | |
c906108c | 1795 | |
581e13c1 | 1796 | /* Now output indentation and wrapped string. */ |
c906108c SS |
1797 | if (wrap_column) |
1798 | { | |
1799 | fputs_unfiltered (wrap_indent, stream); | |
8a522c6c | 1800 | if (stream->can_emit_style_escape ()) |
99f20f08 | 1801 | emit_style_escape (save_style, stream); |
c906108c SS |
1802 | /* FIXME, this strlen is what prevents wrap_indent from |
1803 | containing tabs. However, if we recurse to print it | |
1804 | and count its chars, we risk trouble if wrap_indent is | |
581e13c1 | 1805 | longer than (the user settable) chars_per_line. |
c906108c SS |
1806 | Note also that this can set chars_printed > chars_per_line |
1807 | if we are printing a long string. */ | |
1808 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 1809 | + (save_chars - wrap_column); |
c5aa993b JM |
1810 | wrap_column = 0; /* And disable fancy wrap */ |
1811 | } | |
ca1df239 | 1812 | else if (did_paginate && stream->can_emit_style_escape ()) |
99f20f08 | 1813 | emit_style_escape (save_style, stream); |
c906108c SS |
1814 | } |
1815 | } | |
1816 | ||
1817 | if (*lineptr == '\n') | |
1818 | { | |
1819 | chars_printed = 0; | |
3e43a32a MS |
1820 | wrap_here ((char *) 0); /* Spit out chars, cancel |
1821 | further wraps. */ | |
c906108c SS |
1822 | lines_printed++; |
1823 | fputc_unfiltered ('\n', stream); | |
1824 | lineptr++; | |
1825 | } | |
1826 | } | |
a0087920 TT |
1827 | |
1828 | buffer_clearer.release (); | |
c906108c SS |
1829 | } |
1830 | ||
1831 | void | |
fba45db2 | 1832 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
1833 | { |
1834 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1835 | } | |
1836 | ||
cbe56571 TT |
1837 | /* See utils.h. */ |
1838 | ||
1839 | void | |
1840 | fputs_styled (const char *linebuffer, const ui_file_style &style, | |
1841 | struct ui_file *stream) | |
1842 | { | |
a0087920 TT |
1843 | /* This just makes it so we emit somewhat fewer escape |
1844 | sequences. */ | |
1845 | if (style.is_default ()) | |
1846 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1847 | else | |
1848 | { | |
1849 | set_output_style (stream, style); | |
1850 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1851 | set_output_style (stream, ui_file_style ()); | |
1852 | } | |
cbe56571 TT |
1853 | } |
1854 | ||
9303eb2f PW |
1855 | /* See utils.h. */ |
1856 | ||
1857 | void | |
1858 | fputs_highlighted (const char *str, const compiled_regex &highlight, | |
1859 | struct ui_file *stream) | |
1860 | { | |
1861 | regmatch_t pmatch; | |
1862 | ||
1863 | while (*str && highlight.exec (str, 1, &pmatch, 0) == 0) | |
1864 | { | |
1865 | size_t n_highlight = pmatch.rm_eo - pmatch.rm_so; | |
1866 | ||
1867 | /* Output the part before pmatch with current style. */ | |
1868 | while (pmatch.rm_so > 0) | |
1869 | { | |
1870 | fputc_filtered (*str, stream); | |
1871 | pmatch.rm_so--; | |
1872 | str++; | |
1873 | } | |
1874 | ||
1875 | /* Output pmatch with the highlight style. */ | |
1876 | set_output_style (stream, highlight_style.style ()); | |
1877 | while (n_highlight > 0) | |
1878 | { | |
1879 | fputc_filtered (*str, stream); | |
1880 | n_highlight--; | |
1881 | str++; | |
1882 | } | |
1883 | set_output_style (stream, ui_file_style ()); | |
1884 | } | |
1885 | ||
1886 | /* Output the trailing part of STR not matching HIGHLIGHT. */ | |
1887 | if (*str) | |
1888 | fputs_filtered (str, stream); | |
1889 | } | |
1890 | ||
c906108c | 1891 | int |
fba45db2 | 1892 | putchar_unfiltered (int c) |
c906108c | 1893 | { |
11cf8741 | 1894 | char buf = c; |
e0627e85 | 1895 | |
d9fcf2fb | 1896 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
1897 | return c; |
1898 | } | |
1899 | ||
d1f4cff8 AC |
1900 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
1901 | May return nonlocally. */ | |
1902 | ||
1903 | int | |
1904 | putchar_filtered (int c) | |
1905 | { | |
1906 | return fputc_filtered (c, gdb_stdout); | |
1907 | } | |
1908 | ||
c906108c | 1909 | int |
fba45db2 | 1910 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 1911 | { |
11cf8741 | 1912 | char buf = c; |
e0627e85 | 1913 | |
d9fcf2fb | 1914 | ui_file_write (stream, &buf, 1); |
c906108c SS |
1915 | return c; |
1916 | } | |
1917 | ||
1918 | int | |
fba45db2 | 1919 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
1920 | { |
1921 | char buf[2]; | |
1922 | ||
1923 | buf[0] = c; | |
1924 | buf[1] = 0; | |
1925 | fputs_filtered (buf, stream); | |
1926 | return c; | |
1927 | } | |
1928 | ||
1929 | /* puts_debug is like fputs_unfiltered, except it prints special | |
1930 | characters in printable fashion. */ | |
1931 | ||
1932 | void | |
fba45db2 | 1933 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
1934 | { |
1935 | int ch; | |
1936 | ||
1937 | /* Print prefix and suffix after each line. */ | |
1938 | static int new_line = 1; | |
1939 | static int return_p = 0; | |
a121b7c1 PA |
1940 | static const char *prev_prefix = ""; |
1941 | static const char *prev_suffix = ""; | |
c906108c SS |
1942 | |
1943 | if (*string == '\n') | |
1944 | return_p = 0; | |
1945 | ||
1946 | /* If the prefix is changing, print the previous suffix, a new line, | |
1947 | and the new prefix. */ | |
c5aa993b | 1948 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 1949 | { |
9846de1b JM |
1950 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
1951 | fputs_unfiltered ("\n", gdb_stdlog); | |
1952 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
1953 | } |
1954 | ||
1955 | /* Print prefix if we printed a newline during the previous call. */ | |
1956 | if (new_line) | |
1957 | { | |
1958 | new_line = 0; | |
9846de1b | 1959 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
1960 | } |
1961 | ||
1962 | prev_prefix = prefix; | |
1963 | prev_suffix = suffix; | |
1964 | ||
1965 | /* Output characters in a printable format. */ | |
1966 | while ((ch = *string++) != '\0') | |
1967 | { | |
1968 | switch (ch) | |
c5aa993b | 1969 | { |
c906108c SS |
1970 | default: |
1971 | if (isprint (ch)) | |
9846de1b | 1972 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
1973 | |
1974 | else | |
9846de1b | 1975 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
1976 | break; |
1977 | ||
c5aa993b JM |
1978 | case '\\': |
1979 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
1980 | break; | |
1981 | case '\b': | |
1982 | fputs_unfiltered ("\\b", gdb_stdlog); | |
1983 | break; | |
1984 | case '\f': | |
1985 | fputs_unfiltered ("\\f", gdb_stdlog); | |
1986 | break; | |
1987 | case '\n': | |
1988 | new_line = 1; | |
1989 | fputs_unfiltered ("\\n", gdb_stdlog); | |
1990 | break; | |
1991 | case '\r': | |
1992 | fputs_unfiltered ("\\r", gdb_stdlog); | |
1993 | break; | |
1994 | case '\t': | |
1995 | fputs_unfiltered ("\\t", gdb_stdlog); | |
1996 | break; | |
1997 | case '\v': | |
1998 | fputs_unfiltered ("\\v", gdb_stdlog); | |
1999 | break; | |
2000 | } | |
c906108c SS |
2001 | |
2002 | return_p = ch == '\r'; | |
2003 | } | |
2004 | ||
2005 | /* Print suffix if we printed a newline. */ | |
2006 | if (new_line) | |
2007 | { | |
9846de1b JM |
2008 | fputs_unfiltered (suffix, gdb_stdlog); |
2009 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2010 | } |
2011 | } | |
2012 | ||
2013 | ||
2014 | /* Print a variable number of ARGS using format FORMAT. If this | |
2015 | information is going to put the amount written (since the last call | |
2016 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2017 | call prompt_for_continue to get the users permision to continue. | |
2018 | ||
2019 | Unlike fprintf, this function does not return a value. | |
2020 | ||
2021 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2022 | fprintf (takes a stream to write on), and printf (the usual). | |
2023 | ||
2024 | Note also that a longjmp to top level may occur in this routine | |
2025 | (since prompt_for_continue may do so) so this routine should not be | |
2026 | called when cleanups are not in place. */ | |
2027 | ||
2028 | static void | |
fba45db2 KB |
2029 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2030 | va_list args, int filter) | |
c906108c | 2031 | { |
200aa7b1 TT |
2032 | std::string linebuffer = string_vprintf (format, args); |
2033 | fputs_maybe_filtered (linebuffer.c_str (), stream, filter); | |
c906108c SS |
2034 | } |
2035 | ||
2036 | ||
2037 | void | |
fba45db2 | 2038 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2039 | { |
2040 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2041 | } | |
2042 | ||
2043 | void | |
fba45db2 | 2044 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c | 2045 | { |
200aa7b1 | 2046 | std::string linebuffer = string_vprintf (format, args); |
75feb17d DJ |
2047 | if (debug_timestamp && stream == gdb_stdlog) |
2048 | { | |
dcb07cfa | 2049 | using namespace std::chrono; |
6e5abd65 | 2050 | int len, need_nl; |
75feb17d | 2051 | |
dcb07cfa PA |
2052 | steady_clock::time_point now = steady_clock::now (); |
2053 | seconds s = duration_cast<seconds> (now.time_since_epoch ()); | |
2054 | microseconds us = duration_cast<microseconds> (now.time_since_epoch () - s); | |
6e5abd65 | 2055 | |
200aa7b1 | 2056 | len = linebuffer.size (); |
6e5abd65 PA |
2057 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); |
2058 | ||
dcb07cfa PA |
2059 | std::string timestamp = string_printf ("%ld.%06ld %s%s", |
2060 | (long) s.count (), | |
2061 | (long) us.count (), | |
200aa7b1 TT |
2062 | linebuffer.c_str (), |
2063 | need_nl ? "\n": ""); | |
dcb07cfa | 2064 | fputs_unfiltered (timestamp.c_str (), stream); |
75feb17d | 2065 | } |
6e5abd65 | 2066 | else |
200aa7b1 | 2067 | fputs_unfiltered (linebuffer.c_str (), stream); |
c906108c SS |
2068 | } |
2069 | ||
2070 | void | |
fba45db2 | 2071 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2072 | { |
2073 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2074 | } | |
2075 | ||
2076 | void | |
fba45db2 | 2077 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2078 | { |
2079 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2080 | } | |
2081 | ||
c906108c | 2082 | void |
8731e58e | 2083 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2084 | { |
2085 | va_list args; | |
e0627e85 | 2086 | |
c906108c | 2087 | va_start (args, format); |
c906108c SS |
2088 | vfprintf_filtered (stream, format, args); |
2089 | va_end (args); | |
2090 | } | |
2091 | ||
c906108c | 2092 | void |
8731e58e | 2093 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2094 | { |
2095 | va_list args; | |
e0627e85 | 2096 | |
c906108c | 2097 | va_start (args, format); |
c906108c SS |
2098 | vfprintf_unfiltered (stream, format, args); |
2099 | va_end (args); | |
2100 | } | |
2101 | ||
2102 | /* Like fprintf_filtered, but prints its result indented. | |
2103 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2104 | ||
c906108c | 2105 | void |
8731e58e AC |
2106 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2107 | ...) | |
c906108c SS |
2108 | { |
2109 | va_list args; | |
e0627e85 | 2110 | |
c906108c | 2111 | va_start (args, format); |
c906108c SS |
2112 | print_spaces_filtered (spaces, stream); |
2113 | ||
2114 | vfprintf_filtered (stream, format, args); | |
2115 | va_end (args); | |
2116 | } | |
2117 | ||
cbe56571 TT |
2118 | /* See utils.h. */ |
2119 | ||
2120 | void | |
2121 | fprintf_styled (struct ui_file *stream, const ui_file_style &style, | |
2122 | const char *format, ...) | |
2123 | { | |
2124 | va_list args; | |
2125 | ||
2126 | set_output_style (stream, style); | |
2127 | va_start (args, format); | |
2128 | vfprintf_filtered (stream, format, args); | |
2129 | va_end (args); | |
2130 | set_output_style (stream, ui_file_style ()); | |
2131 | } | |
2132 | ||
c906108c | 2133 | |
c906108c | 2134 | void |
8731e58e | 2135 | printf_filtered (const char *format, ...) |
c906108c SS |
2136 | { |
2137 | va_list args; | |
e0627e85 | 2138 | |
c906108c | 2139 | va_start (args, format); |
c906108c SS |
2140 | vfprintf_filtered (gdb_stdout, format, args); |
2141 | va_end (args); | |
2142 | } | |
2143 | ||
2144 | ||
c906108c | 2145 | void |
8731e58e | 2146 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2147 | { |
2148 | va_list args; | |
e0627e85 | 2149 | |
c906108c | 2150 | va_start (args, format); |
c906108c SS |
2151 | vfprintf_unfiltered (gdb_stdout, format, args); |
2152 | va_end (args); | |
2153 | } | |
2154 | ||
2155 | /* Like printf_filtered, but prints it's result indented. | |
2156 | Called as printfi_filtered (spaces, format, ...); */ | |
2157 | ||
c906108c | 2158 | void |
8731e58e | 2159 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2160 | { |
2161 | va_list args; | |
e0627e85 | 2162 | |
c906108c | 2163 | va_start (args, format); |
c906108c SS |
2164 | print_spaces_filtered (spaces, gdb_stdout); |
2165 | vfprintf_filtered (gdb_stdout, format, args); | |
2166 | va_end (args); | |
2167 | } | |
2168 | ||
2169 | /* Easy -- but watch out! | |
2170 | ||
2171 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2172 | This one doesn't, and had better not! */ | |
2173 | ||
2174 | void | |
fba45db2 | 2175 | puts_filtered (const char *string) |
c906108c SS |
2176 | { |
2177 | fputs_filtered (string, gdb_stdout); | |
2178 | } | |
2179 | ||
2180 | void | |
fba45db2 | 2181 | puts_unfiltered (const char *string) |
c906108c SS |
2182 | { |
2183 | fputs_unfiltered (string, gdb_stdout); | |
2184 | } | |
2185 | ||
2186 | /* Return a pointer to N spaces and a null. The pointer is good | |
2187 | until the next call to here. */ | |
2188 | char * | |
fba45db2 | 2189 | n_spaces (int n) |
c906108c | 2190 | { |
392a587b JM |
2191 | char *t; |
2192 | static char *spaces = 0; | |
2193 | static int max_spaces = -1; | |
c906108c SS |
2194 | |
2195 | if (n > max_spaces) | |
2196 | { | |
2197 | if (spaces) | |
b8c9b27d | 2198 | xfree (spaces); |
c5aa993b JM |
2199 | spaces = (char *) xmalloc (n + 1); |
2200 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2201 | *--t = ' '; |
2202 | spaces[n] = '\0'; | |
2203 | max_spaces = n; | |
2204 | } | |
2205 | ||
2206 | return spaces + max_spaces - n; | |
2207 | } | |
2208 | ||
2209 | /* Print N spaces. */ | |
2210 | void | |
fba45db2 | 2211 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2212 | { |
2213 | fputs_filtered (n_spaces (n), stream); | |
2214 | } | |
2215 | \f | |
4a351cef | 2216 | /* C++/ObjC demangler stuff. */ |
c906108c | 2217 | |
389e51db AC |
2218 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2219 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2220 | If the name is not mangled, or the language for the name is unknown, or | |
581e13c1 | 2221 | demangling is off, the name is printed in its "raw" form. */ |
c906108c SS |
2222 | |
2223 | void | |
0d5cff50 | 2224 | fprintf_symbol_filtered (struct ui_file *stream, const char *name, |
8731e58e | 2225 | enum language lang, int arg_mode) |
c906108c SS |
2226 | { |
2227 | char *demangled; | |
2228 | ||
2229 | if (name != NULL) | |
2230 | { | |
2231 | /* If user wants to see raw output, no problem. */ | |
2232 | if (!demangle) | |
2233 | { | |
2234 | fputs_filtered (name, stream); | |
2235 | } | |
2236 | else | |
2237 | { | |
9a3d7dfd | 2238 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2239 | fputs_filtered (demangled ? demangled : name, stream); |
2240 | if (demangled != NULL) | |
2241 | { | |
b8c9b27d | 2242 | xfree (demangled); |
c906108c SS |
2243 | } |
2244 | } | |
2245 | } | |
2246 | } | |
2247 | ||
0662b6a7 PA |
2248 | /* True if CH is a character that can be part of a symbol name. I.e., |
2249 | either a number, a letter, or a '_'. */ | |
2250 | ||
2251 | static bool | |
2252 | valid_identifier_name_char (int ch) | |
2253 | { | |
2254 | return (isalnum (ch) || ch == '_'); | |
2255 | } | |
2256 | ||
2257 | /* Skip to end of token, or to END, whatever comes first. Input is | |
2258 | assumed to be a C++ operator name. */ | |
2259 | ||
2260 | static const char * | |
2261 | cp_skip_operator_token (const char *token, const char *end) | |
2262 | { | |
2263 | const char *p = token; | |
2264 | while (p != end && !isspace (*p) && *p != '(') | |
2265 | { | |
2266 | if (valid_identifier_name_char (*p)) | |
2267 | { | |
2268 | while (p != end && valid_identifier_name_char (*p)) | |
2269 | p++; | |
2270 | return p; | |
2271 | } | |
2272 | else | |
2273 | { | |
2274 | /* Note, ordered such that among ops that share a prefix, | |
2275 | longer comes first. This is so that the loop below can | |
2276 | bail on first match. */ | |
2277 | static const char *ops[] = | |
2278 | { | |
2279 | "[", | |
2280 | "]", | |
2281 | "~", | |
2282 | ",", | |
2283 | "-=", "--", "->", "-", | |
2284 | "+=", "++", "+", | |
2285 | "*=", "*", | |
2286 | "/=", "/", | |
2287 | "%=", "%", | |
2288 | "|=", "||", "|", | |
2289 | "&=", "&&", "&", | |
2290 | "^=", "^", | |
2291 | "!=", "!", | |
2292 | "<<=", "<=", "<<", "<", | |
2293 | ">>=", ">=", ">>", ">", | |
2294 | "==", "=", | |
2295 | }; | |
2296 | ||
2297 | for (const char *op : ops) | |
2298 | { | |
2299 | size_t oplen = strlen (op); | |
2300 | size_t lencmp = std::min<size_t> (oplen, end - p); | |
2301 | ||
2302 | if (strncmp (p, op, lencmp) == 0) | |
2303 | return p + lencmp; | |
2304 | } | |
2305 | /* Some unidentified character. Return it. */ | |
2306 | return p + 1; | |
2307 | } | |
2308 | } | |
2309 | ||
2310 | return p; | |
2311 | } | |
2312 | ||
2313 | /* Advance STRING1/STRING2 past whitespace. */ | |
2314 | ||
2315 | static void | |
2316 | skip_ws (const char *&string1, const char *&string2, const char *end_str2) | |
2317 | { | |
2318 | while (isspace (*string1)) | |
2319 | string1++; | |
2320 | while (string2 < end_str2 && isspace (*string2)) | |
2321 | string2++; | |
2322 | } | |
2323 | ||
2324 | /* True if STRING points at the start of a C++ operator name. START | |
2325 | is the start of the string that STRING points to, hence when | |
2326 | reading backwards, we must not read any character before START. */ | |
2327 | ||
2328 | static bool | |
2329 | cp_is_operator (const char *string, const char *start) | |
2330 | { | |
2331 | return ((string == start | |
2332 | || !valid_identifier_name_char (string[-1])) | |
2333 | && strncmp (string, CP_OPERATOR_STR, CP_OPERATOR_LEN) == 0 | |
2334 | && !valid_identifier_name_char (string[CP_OPERATOR_LEN])); | |
2335 | } | |
2336 | ||
bd69330d PA |
2337 | /* If *NAME points at an ABI tag, skip it and return true. Otherwise |
2338 | leave *NAME unmodified and return false. (see GCC's abi_tag | |
2339 | attribute), such names are demangled as e.g., | |
2340 | "function[abi:cxx11]()". */ | |
2341 | ||
2342 | static bool | |
2343 | skip_abi_tag (const char **name) | |
2344 | { | |
2345 | const char *p = *name; | |
2346 | ||
2347 | if (startswith (p, "[abi:")) | |
2348 | { | |
2349 | p += 5; | |
2350 | ||
2351 | while (valid_identifier_name_char (*p)) | |
2352 | p++; | |
2353 | ||
2354 | if (*p == ']') | |
2355 | { | |
2356 | p++; | |
2357 | *name = p; | |
2358 | return true; | |
2359 | } | |
2360 | } | |
2361 | return false; | |
2362 | } | |
2363 | ||
b5ec771e | 2364 | /* See utils.h. */ |
1d550c82 | 2365 | |
b5ec771e | 2366 | int |
1d550c82 | 2367 | strncmp_iw_with_mode (const char *string1, const char *string2, |
0662b6a7 | 2368 | size_t string2_len, strncmp_iw_mode mode, |
bd69330d PA |
2369 | enum language language, |
2370 | completion_match_for_lcd *match_for_lcd) | |
c906108c | 2371 | { |
0662b6a7 | 2372 | const char *string1_start = string1; |
1d550c82 | 2373 | const char *end_str2 = string2 + string2_len; |
0662b6a7 PA |
2374 | bool skip_spaces = true; |
2375 | bool have_colon_op = (language == language_cplus | |
2376 | || language == language_rust | |
2377 | || language == language_fortran); | |
1d550c82 PA |
2378 | |
2379 | while (1) | |
c906108c | 2380 | { |
0662b6a7 PA |
2381 | if (skip_spaces |
2382 | || ((isspace (*string1) && !valid_identifier_name_char (*string2)) | |
2383 | || (isspace (*string2) && !valid_identifier_name_char (*string1)))) | |
2384 | { | |
2385 | skip_ws (string1, string2, end_str2); | |
2386 | skip_spaces = false; | |
2387 | } | |
2388 | ||
bd69330d PA |
2389 | /* Skip [abi:cxx11] tags in the symbol name if the lookup name |
2390 | doesn't include them. E.g.: | |
2391 | ||
2392 | string1: function[abi:cxx1](int) | |
2393 | string2: function | |
2394 | ||
2395 | string1: function[abi:cxx1](int) | |
2396 | string2: function(int) | |
2397 | ||
2398 | string1: Struct[abi:cxx1]::function() | |
2399 | string2: Struct::function() | |
2400 | ||
2401 | string1: function(Struct[abi:cxx1], int) | |
2402 | string2: function(Struct, int) | |
2403 | */ | |
2404 | if (string2 == end_str2 | |
2405 | || (*string2 != '[' && !valid_identifier_name_char (*string2))) | |
2406 | { | |
2407 | const char *abi_start = string1; | |
2408 | ||
2409 | /* There can be more than one tag. */ | |
2410 | while (*string1 == '[' && skip_abi_tag (&string1)) | |
2411 | ; | |
2412 | ||
2413 | if (match_for_lcd != NULL && abi_start != string1) | |
2414 | match_for_lcd->mark_ignored_range (abi_start, string1); | |
2415 | ||
2416 | while (isspace (*string1)) | |
2417 | string1++; | |
2418 | } | |
2419 | ||
1d550c82 PA |
2420 | if (*string1 == '\0' || string2 == end_str2) |
2421 | break; | |
0662b6a7 PA |
2422 | |
2423 | /* Handle the :: operator. */ | |
2424 | if (have_colon_op && string1[0] == ':' && string1[1] == ':') | |
2425 | { | |
2426 | if (*string2 != ':') | |
2427 | return 1; | |
2428 | ||
2429 | string1++; | |
2430 | string2++; | |
2431 | ||
2432 | if (string2 == end_str2) | |
2433 | break; | |
2434 | ||
2435 | if (*string2 != ':') | |
2436 | return 1; | |
2437 | ||
2438 | string1++; | |
2439 | string2++; | |
2440 | ||
2441 | while (isspace (*string1)) | |
2442 | string1++; | |
2443 | while (string2 < end_str2 && isspace (*string2)) | |
2444 | string2++; | |
2445 | continue; | |
2446 | } | |
2447 | ||
2448 | /* Handle C++ user-defined operators. */ | |
2449 | else if (language == language_cplus | |
2450 | && *string1 == 'o') | |
2451 | { | |
2452 | if (cp_is_operator (string1, string1_start)) | |
2453 | { | |
2454 | /* An operator name in STRING1. Check STRING2. */ | |
2455 | size_t cmplen | |
2456 | = std::min<size_t> (CP_OPERATOR_LEN, end_str2 - string2); | |
2457 | if (strncmp (string1, string2, cmplen) != 0) | |
2458 | return 1; | |
2459 | ||
2460 | string1 += cmplen; | |
2461 | string2 += cmplen; | |
2462 | ||
2463 | if (string2 != end_str2) | |
2464 | { | |
2465 | /* Check for "operatorX" in STRING2. */ | |
2466 | if (valid_identifier_name_char (*string2)) | |
2467 | return 1; | |
2468 | ||
2469 | skip_ws (string1, string2, end_str2); | |
2470 | } | |
2471 | ||
2472 | /* Handle operator(). */ | |
2473 | if (*string1 == '(') | |
2474 | { | |
2475 | if (string2 == end_str2) | |
2476 | { | |
2477 | if (mode == strncmp_iw_mode::NORMAL) | |
2478 | return 0; | |
2479 | else | |
2480 | { | |
2481 | /* Don't break for the regular return at the | |
2482 | bottom, because "operator" should not | |
2483 | match "operator()", since this open | |
2484 | parentheses is not the parameter list | |
2485 | start. */ | |
2486 | return *string1 != '\0'; | |
2487 | } | |
2488 | } | |
2489 | ||
2490 | if (*string1 != *string2) | |
2491 | return 1; | |
2492 | ||
2493 | string1++; | |
2494 | string2++; | |
2495 | } | |
2496 | ||
2497 | while (1) | |
2498 | { | |
2499 | skip_ws (string1, string2, end_str2); | |
2500 | ||
2501 | /* Skip to end of token, or to END, whatever comes | |
2502 | first. */ | |
2503 | const char *end_str1 = string1 + strlen (string1); | |
2504 | const char *p1 = cp_skip_operator_token (string1, end_str1); | |
2505 | const char *p2 = cp_skip_operator_token (string2, end_str2); | |
2506 | ||
2507 | cmplen = std::min (p1 - string1, p2 - string2); | |
2508 | if (p2 == end_str2) | |
2509 | { | |
2510 | if (strncmp (string1, string2, cmplen) != 0) | |
2511 | return 1; | |
2512 | } | |
2513 | else | |
2514 | { | |
2515 | if (p1 - string1 != p2 - string2) | |
2516 | return 1; | |
2517 | if (strncmp (string1, string2, cmplen) != 0) | |
2518 | return 1; | |
2519 | } | |
2520 | ||
2521 | string1 += cmplen; | |
2522 | string2 += cmplen; | |
2523 | ||
2524 | if (*string1 == '\0' || string2 == end_str2) | |
2525 | break; | |
2526 | if (*string1 == '(' || *string2 == '(') | |
2527 | break; | |
2528 | } | |
2529 | ||
2530 | continue; | |
2531 | } | |
2532 | } | |
2533 | ||
559a7a62 JK |
2534 | if (case_sensitivity == case_sensitive_on && *string1 != *string2) |
2535 | break; | |
2536 | if (case_sensitivity == case_sensitive_off | |
2537 | && (tolower ((unsigned char) *string1) | |
2538 | != tolower ((unsigned char) *string2))) | |
2539 | break; | |
1d550c82 | 2540 | |
0662b6a7 PA |
2541 | /* If we see any non-whitespace, non-identifier-name character |
2542 | (any of "()<>*&" etc.), then skip spaces the next time | |
2543 | around. */ | |
2544 | if (!isspace (*string1) && !valid_identifier_name_char (*string1)) | |
2545 | skip_spaces = true; | |
2546 | ||
1d550c82 PA |
2547 | string1++; |
2548 | string2++; | |
c906108c | 2549 | } |
1d550c82 PA |
2550 | |
2551 | if (string2 == end_str2) | |
2552 | { | |
2553 | if (mode == strncmp_iw_mode::NORMAL) | |
bd69330d PA |
2554 | { |
2555 | /* Strip abi tag markers from the matched symbol name. | |
2556 | Usually the ABI marker will be found on function name | |
2557 | (automatically added because the function returns an | |
2558 | object marked with an ABI tag). However, it's also | |
2559 | possible to see a marker in one of the function | |
2560 | parameters, for example. | |
2561 | ||
2562 | string2 (lookup name): | |
2563 | func | |
2564 | symbol name: | |
2565 | function(some_struct[abi:cxx11], int) | |
2566 | ||
2567 | and for completion LCD computation we want to say that | |
2568 | the match was for: | |
2569 | function(some_struct, int) | |
2570 | */ | |
2571 | if (match_for_lcd != NULL) | |
2572 | { | |
2573 | while ((string1 = strstr (string1, "[abi:")) != NULL) | |
2574 | { | |
2575 | const char *abi_start = string1; | |
2576 | ||
2577 | /* There can be more than one tag. */ | |
2578 | while (skip_abi_tag (&string1) && *string1 == '[') | |
2579 | ; | |
2580 | ||
2581 | if (abi_start != string1) | |
2582 | match_for_lcd->mark_ignored_range (abi_start, string1); | |
2583 | } | |
2584 | } | |
2585 | ||
2586 | return 0; | |
2587 | } | |
1d550c82 PA |
2588 | else |
2589 | return (*string1 != '\0' && *string1 != '('); | |
2590 | } | |
2591 | else | |
2592 | return 1; | |
2593 | } | |
2594 | ||
2595 | /* See utils.h. */ | |
2596 | ||
2597 | int | |
2598 | strncmp_iw (const char *string1, const char *string2, size_t string2_len) | |
2599 | { | |
2600 | return strncmp_iw_with_mode (string1, string2, string2_len, | |
0662b6a7 | 2601 | strncmp_iw_mode::NORMAL, language_minimal); |
1d550c82 PA |
2602 | } |
2603 | ||
2604 | /* See utils.h. */ | |
2605 | ||
2606 | int | |
2607 | strcmp_iw (const char *string1, const char *string2) | |
2608 | { | |
2609 | return strncmp_iw_with_mode (string1, string2, strlen (string2), | |
0662b6a7 | 2610 | strncmp_iw_mode::MATCH_PARAMS, language_minimal); |
c906108c | 2611 | } |
2de7ced7 | 2612 | |
0fe19209 DC |
2613 | /* This is like strcmp except that it ignores whitespace and treats |
2614 | '(' as the first non-NULL character in terms of ordering. Like | |
2615 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2616 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2617 | according to that ordering. | |
2618 | ||
2619 | If a list is sorted according to this function and if you want to | |
2620 | find names in the list that match some fixed NAME according to | |
2621 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2622 | where this function would put NAME. | |
2623 | ||
559a7a62 JK |
2624 | This function must be neutral to the CASE_SENSITIVITY setting as the user |
2625 | may choose it during later lookup. Therefore this function always sorts | |
2626 | primarily case-insensitively and secondarily case-sensitively. | |
2627 | ||
0fe19209 DC |
2628 | Here are some examples of why using strcmp to sort is a bad idea: |
2629 | ||
2630 | Whitespace example: | |
2631 | ||
2632 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2633 | we try to do a search for "foo<char*>", strcmp will locate this | |
2634 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2635 | will start looking at strings beginning with "goo", and will never | |
2636 | see the correct match of "foo<char *>". | |
2637 | ||
2638 | Parenthesis example: | |
2639 | ||
2640 | In practice, this is less like to be an issue, but I'll give it a | |
2641 | shot. Let's assume that '$' is a legitimate character to occur in | |
2642 | symbols. (Which may well even be the case on some systems.) Then | |
2643 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2644 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2645 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2646 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2647 | "foo") is false, so it won't proceed to the actual match of | |
2648 | "foo(int)" with "foo". */ | |
2649 | ||
2650 | int | |
2651 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2652 | { | |
559a7a62 JK |
2653 | const char *saved_string1 = string1, *saved_string2 = string2; |
2654 | enum case_sensitivity case_pass = case_sensitive_off; | |
2655 | ||
2656 | for (;;) | |
0fe19209 | 2657 | { |
b11b1f88 JK |
2658 | /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'. |
2659 | Provide stub characters if we are already at the end of one of the | |
2660 | strings. */ | |
2661 | char c1 = 'X', c2 = 'X'; | |
2662 | ||
2663 | while (*string1 != '\0' && *string2 != '\0') | |
0fe19209 | 2664 | { |
b11b1f88 JK |
2665 | while (isspace (*string1)) |
2666 | string1++; | |
2667 | while (isspace (*string2)) | |
2668 | string2++; | |
2669 | ||
559a7a62 JK |
2670 | switch (case_pass) |
2671 | { | |
2672 | case case_sensitive_off: | |
2673 | c1 = tolower ((unsigned char) *string1); | |
2674 | c2 = tolower ((unsigned char) *string2); | |
2675 | break; | |
2676 | case case_sensitive_on: | |
b11b1f88 JK |
2677 | c1 = *string1; |
2678 | c2 = *string2; | |
559a7a62 JK |
2679 | break; |
2680 | } | |
b11b1f88 JK |
2681 | if (c1 != c2) |
2682 | break; | |
2683 | ||
2684 | if (*string1 != '\0') | |
2685 | { | |
2686 | string1++; | |
2687 | string2++; | |
2688 | } | |
0fe19209 | 2689 | } |
b11b1f88 JK |
2690 | |
2691 | switch (*string1) | |
0fe19209 | 2692 | { |
b11b1f88 JK |
2693 | /* Characters are non-equal unless they're both '\0'; we want to |
2694 | make sure we get the comparison right according to our | |
2695 | comparison in the cases where one of them is '\0' or '('. */ | |
2696 | case '\0': | |
2697 | if (*string2 == '\0') | |
559a7a62 | 2698 | break; |
b11b1f88 JK |
2699 | else |
2700 | return -1; | |
2701 | case '(': | |
2702 | if (*string2 == '\0') | |
2703 | return 1; | |
2704 | else | |
2705 | return -1; | |
2706 | default: | |
2707 | if (*string2 == '\0' || *string2 == '(') | |
2708 | return 1; | |
559a7a62 JK |
2709 | else if (c1 > c2) |
2710 | return 1; | |
2711 | else if (c1 < c2) | |
2712 | return -1; | |
2713 | /* PASSTHRU */ | |
0fe19209 | 2714 | } |
559a7a62 JK |
2715 | |
2716 | if (case_pass == case_sensitive_on) | |
2717 | return 0; | |
2718 | ||
2719 | /* Otherwise the strings were equal in case insensitive way, make | |
2720 | a more fine grained comparison in a case sensitive way. */ | |
2721 | ||
2722 | case_pass = case_sensitive_on; | |
2723 | string1 = saved_string1; | |
2724 | string2 = saved_string2; | |
0fe19209 | 2725 | } |
0fe19209 DC |
2726 | } |
2727 | ||
459a2e4c | 2728 | /* See utils.h. */ |
2de7ced7 | 2729 | |
459a2e4c | 2730 | bool |
2de7ced7 DJ |
2731 | streq (const char *lhs, const char *rhs) |
2732 | { | |
2733 | return !strcmp (lhs, rhs); | |
2734 | } | |
459a2e4c TT |
2735 | |
2736 | /* See utils.h. */ | |
2737 | ||
2738 | int | |
2739 | streq_hash (const void *lhs, const void *rhs) | |
2740 | { | |
2741 | return streq ((const char *) lhs, (const char *) rhs); | |
2742 | } | |
2743 | ||
c906108c | 2744 | \f |
c5aa993b | 2745 | |
c906108c | 2746 | /* |
c5aa993b JM |
2747 | ** subset_compare() |
2748 | ** Answer whether string_to_compare is a full or partial match to | |
2749 | ** template_string. The partial match must be in sequence starting | |
2750 | ** at index 0. | |
2751 | */ | |
c906108c | 2752 | int |
a121b7c1 | 2753 | subset_compare (const char *string_to_compare, const char *template_string) |
7a292a7a SS |
2754 | { |
2755 | int match; | |
e0627e85 | 2756 | |
cafb3438 | 2757 | if (template_string != NULL && string_to_compare != NULL |
8731e58e AC |
2758 | && strlen (string_to_compare) <= strlen (template_string)) |
2759 | match = | |
61012eef | 2760 | (startswith (template_string, string_to_compare)); |
7a292a7a SS |
2761 | else |
2762 | match = 0; | |
2763 | return match; | |
2764 | } | |
c906108c | 2765 | |
75feb17d DJ |
2766 | static void |
2767 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
2768 | struct cmd_list_element *c, const char *value) | |
2769 | { | |
3e43a32a MS |
2770 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), |
2771 | value); | |
75feb17d | 2772 | } |
c906108c | 2773 | \f |
c5aa993b | 2774 | |
a738ea1d YQ |
2775 | /* See utils.h. */ |
2776 | ||
2777 | CORE_ADDR | |
2778 | address_significant (gdbarch *gdbarch, CORE_ADDR addr) | |
2779 | { | |
8727de56 OJ |
2780 | /* Clear insignificant bits of a target address and sign extend resulting |
2781 | address, avoiding shifts larger or equal than the width of a CORE_ADDR. | |
2782 | The local variable ADDR_BIT stops the compiler reporting a shift overflow | |
5969f0db OJ |
2783 | when it won't occur. Skip updating of target address if current target |
2784 | has not set gdbarch significant_addr_bit. */ | |
a738ea1d YQ |
2785 | int addr_bit = gdbarch_significant_addr_bit (gdbarch); |
2786 | ||
5969f0db | 2787 | if (addr_bit && (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))) |
8727de56 OJ |
2788 | { |
2789 | CORE_ADDR sign = (CORE_ADDR) 1 << (addr_bit - 1); | |
2790 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2791 | addr = (addr ^ sign) - sign; | |
2792 | } | |
a738ea1d YQ |
2793 | |
2794 | return addr; | |
2795 | } | |
2796 | ||
66bf4b3a | 2797 | const char * |
5af949e3 | 2798 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
2799 | { |
2800 | /* Truncate address to the size of a target address, avoiding shifts | |
2801 | larger or equal than the width of a CORE_ADDR. The local | |
2802 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
581e13c1 | 2803 | when it won't occur. */ |
66bf4b3a AC |
2804 | /* NOTE: This assumes that the significant address information is |
2805 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2806 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2807 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2808 | ||
5af949e3 | 2809 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
2810 | |
2811 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2812 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2813 | return hex_string (addr); | |
2814 | } | |
2815 | ||
f1310107 TJB |
2816 | /* This function is described in "defs.h". */ |
2817 | ||
2818 | const char * | |
2819 | print_core_address (struct gdbarch *gdbarch, CORE_ADDR address) | |
2820 | { | |
2821 | int addr_bit = gdbarch_addr_bit (gdbarch); | |
2822 | ||
2823 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2824 | address &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2825 | ||
2826 | /* FIXME: cagney/2002-05-03: Need local_address_string() function | |
2827 | that returns the language localized string formatted to a width | |
2828 | based on gdbarch_addr_bit. */ | |
2829 | if (addr_bit <= 32) | |
2830 | return hex_string_custom (address, 8); | |
2831 | else | |
2832 | return hex_string_custom (address, 16); | |
2833 | } | |
2834 | ||
8e3b41a9 JK |
2835 | /* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */ |
2836 | ||
2837 | hashval_t | |
2838 | core_addr_hash (const void *ap) | |
2839 | { | |
19ba03f4 | 2840 | const CORE_ADDR *addrp = (const CORE_ADDR *) ap; |
8e3b41a9 JK |
2841 | |
2842 | return *addrp; | |
2843 | } | |
2844 | ||
2845 | /* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */ | |
2846 | ||
2847 | int | |
2848 | core_addr_eq (const void *ap, const void *bp) | |
2849 | { | |
19ba03f4 SM |
2850 | const CORE_ADDR *addr_ap = (const CORE_ADDR *) ap; |
2851 | const CORE_ADDR *addr_bp = (const CORE_ADDR *) bp; | |
8e3b41a9 JK |
2852 | |
2853 | return *addr_ap == *addr_bp; | |
2854 | } | |
2855 | ||
03dd37c3 AC |
2856 | /* Convert a string back into a CORE_ADDR. */ |
2857 | CORE_ADDR | |
2858 | string_to_core_addr (const char *my_string) | |
2859 | { | |
2860 | CORE_ADDR addr = 0; | |
9544c605 | 2861 | |
03dd37c3 AC |
2862 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
2863 | { | |
ced572fe | 2864 | /* Assume that it is in hex. */ |
03dd37c3 | 2865 | int i; |
5d502164 | 2866 | |
03dd37c3 AC |
2867 | for (i = 2; my_string[i] != '\0'; i++) |
2868 | { | |
2869 | if (isdigit (my_string[i])) | |
2870 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 2871 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
2872 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
2873 | else | |
63f06803 | 2874 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
2875 | } |
2876 | } | |
2877 | else | |
2878 | { | |
2879 | /* Assume that it is in decimal. */ | |
2880 | int i; | |
5d502164 | 2881 | |
03dd37c3 AC |
2882 | for (i = 0; my_string[i] != '\0'; i++) |
2883 | { | |
2884 | if (isdigit (my_string[i])) | |
2885 | addr = (my_string[i] - '0') + (addr * 10); | |
2886 | else | |
63f06803 | 2887 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
2888 | } |
2889 | } | |
9544c605 | 2890 | |
03dd37c3 AC |
2891 | return addr; |
2892 | } | |
58d370e0 | 2893 | |
14278e1f TT |
2894 | #if GDB_SELF_TEST |
2895 | ||
2896 | static void | |
2897 | gdb_realpath_check_trailer (const char *input, const char *trailer) | |
2898 | { | |
2899 | gdb::unique_xmalloc_ptr<char> result = gdb_realpath (input); | |
2900 | ||
2901 | size_t len = strlen (result.get ()); | |
2902 | size_t trail_len = strlen (trailer); | |
2903 | ||
2904 | SELF_CHECK (len >= trail_len | |
2905 | && strcmp (result.get () + len - trail_len, trailer) == 0); | |
2906 | } | |
2907 | ||
2908 | static void | |
2909 | gdb_realpath_tests () | |
2910 | { | |
2911 | /* A file which contains a directory prefix. */ | |
2912 | gdb_realpath_check_trailer ("./xfullpath.exp", "/xfullpath.exp"); | |
2913 | /* A file which contains a directory prefix. */ | |
2914 | gdb_realpath_check_trailer ("../../defs.h", "/defs.h"); | |
2915 | /* A one-character filename. */ | |
2916 | gdb_realpath_check_trailer ("./a", "/a"); | |
2917 | /* A file in the root directory. */ | |
2918 | gdb_realpath_check_trailer ("/root_file_which_should_exist", | |
2919 | "/root_file_which_should_exist"); | |
2920 | /* A file which does not have a directory prefix. */ | |
2921 | gdb_realpath_check_trailer ("xfullpath.exp", "xfullpath.exp"); | |
2922 | /* A one-char filename without any directory prefix. */ | |
2923 | gdb_realpath_check_trailer ("a", "a"); | |
2924 | /* An empty filename. */ | |
2925 | gdb_realpath_check_trailer ("", ""); | |
2926 | } | |
2927 | ||
2928 | #endif /* GDB_SELF_TEST */ | |
2929 | ||
ae5a43e0 DJ |
2930 | /* Allocation function for the libiberty hash table which uses an |
2931 | obstack. The obstack is passed as DATA. */ | |
2932 | ||
2933 | void * | |
2934 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
2935 | { | |
241fd515 | 2936 | size_t total = size * count; |
ae5a43e0 | 2937 | void *ptr = obstack_alloc ((struct obstack *) data, total); |
e0627e85 | 2938 | |
ae5a43e0 DJ |
2939 | memset (ptr, 0, total); |
2940 | return ptr; | |
2941 | } | |
2942 | ||
2943 | /* Trivial deallocation function for the libiberty splay tree and hash | |
2944 | table - don't deallocate anything. Rely on later deletion of the | |
2945 | obstack. DATA will be the obstack, although it is not needed | |
2946 | here. */ | |
2947 | ||
2948 | void | |
2949 | dummy_obstack_deallocate (void *object, void *data) | |
2950 | { | |
2951 | return; | |
2952 | } | |
253c8abb | 2953 | |
e1024ff1 DJ |
2954 | /* Simple, portable version of dirname that does not modify its |
2955 | argument. */ | |
2956 | ||
d721ba37 | 2957 | std::string |
e1024ff1 DJ |
2958 | ldirname (const char *filename) |
2959 | { | |
d721ba37 | 2960 | std::string dirname; |
e1024ff1 | 2961 | const char *base = lbasename (filename); |
e1024ff1 DJ |
2962 | |
2963 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
2964 | --base; | |
2965 | ||
2966 | if (base == filename) | |
d721ba37 | 2967 | return dirname; |
e1024ff1 | 2968 | |
d721ba37 | 2969 | dirname = std::string (filename, base - filename); |
e1024ff1 DJ |
2970 | |
2971 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
2972 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
2973 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
2974 | && !IS_DIR_SEPARATOR (filename[0])) | |
2975 | dirname[base++ - filename] = '.'; | |
2976 | ||
e1024ff1 DJ |
2977 | return dirname; |
2978 | } | |
d1a41061 | 2979 | |
773a1edc TT |
2980 | /* See utils.h. */ |
2981 | ||
2982 | void | |
2983 | gdb_argv::reset (const char *s) | |
2984 | { | |
2985 | char **argv = buildargv (s); | |
2986 | ||
2987 | if (s != NULL && argv == NULL) | |
2988 | malloc_failure (0); | |
2989 | ||
2990 | freeargv (m_argv); | |
2991 | m_argv = argv; | |
2992 | } | |
2993 | ||
dc146f7c VP |
2994 | int |
2995 | compare_positive_ints (const void *ap, const void *bp) | |
2996 | { | |
2997 | /* Because we know we're comparing two ints which are positive, | |
2998 | there's no danger of overflow here. */ | |
2999 | return * (int *) ap - * (int *) bp; | |
3000 | } | |
3001 | ||
d18b8b7a | 3002 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3e43a32a MS |
3003 | #define AMBIGUOUS_MESS2 \ |
3004 | ".\nUse \"set gnutarget format-name\" to specify the format." | |
d18b8b7a | 3005 | |
803c08d0 | 3006 | std::string |
d18b8b7a HZ |
3007 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) |
3008 | { | |
d18b8b7a HZ |
3009 | char **p; |
3010 | ||
3011 | /* Check if errmsg just need simple return. */ | |
3012 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
3013 | return bfd_errmsg (error_tag); | |
3014 | ||
803c08d0 TT |
3015 | std::string ret (bfd_errmsg (error_tag)); |
3016 | ret += AMBIGUOUS_MESS1; | |
d18b8b7a HZ |
3017 | |
3018 | for (p = matching; *p; p++) | |
3019 | { | |
803c08d0 TT |
3020 | ret += " "; |
3021 | ret += *p; | |
d18b8b7a | 3022 | } |
803c08d0 | 3023 | ret += AMBIGUOUS_MESS2; |
d18b8b7a | 3024 | |
803c08d0 | 3025 | xfree (matching); |
d18b8b7a HZ |
3026 | |
3027 | return ret; | |
3028 | } | |
3029 | ||
74164c56 JK |
3030 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
3031 | ||
3032 | int | |
c0939df1 | 3033 | parse_pid_to_attach (const char *args) |
74164c56 JK |
3034 | { |
3035 | unsigned long pid; | |
3036 | char *dummy; | |
3037 | ||
3038 | if (!args) | |
3039 | error_no_arg (_("process-id to attach")); | |
3040 | ||
c0939df1 | 3041 | dummy = (char *) args; |
74164c56 JK |
3042 | pid = strtoul (args, &dummy, 0); |
3043 | /* Some targets don't set errno on errors, grrr! */ | |
3044 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
3045 | error (_("Illegal process-id: %s."), args); | |
3046 | ||
3047 | return pid; | |
3048 | } | |
3049 | ||
6dea1fbd JK |
3050 | /* Substitute all occurences of string FROM by string TO in *STRINGP. *STRINGP |
3051 | must come from xrealloc-compatible allocator and it may be updated. FROM | |
1564a261 JK |
3052 | needs to be delimited by IS_DIR_SEPARATOR or DIRNAME_SEPARATOR (or be |
3053 | located at the start or end of *STRINGP. */ | |
6dea1fbd JK |
3054 | |
3055 | void | |
3056 | substitute_path_component (char **stringp, const char *from, const char *to) | |
3057 | { | |
3058 | char *string = *stringp, *s; | |
3059 | const size_t from_len = strlen (from); | |
3060 | const size_t to_len = strlen (to); | |
3061 | ||
3062 | for (s = string;;) | |
3063 | { | |
3064 | s = strstr (s, from); | |
3065 | if (s == NULL) | |
3066 | break; | |
3067 | ||
1564a261 JK |
3068 | if ((s == string || IS_DIR_SEPARATOR (s[-1]) |
3069 | || s[-1] == DIRNAME_SEPARATOR) | |
3070 | && (s[from_len] == '\0' || IS_DIR_SEPARATOR (s[from_len]) | |
3071 | || s[from_len] == DIRNAME_SEPARATOR)) | |
6dea1fbd JK |
3072 | { |
3073 | char *string_new; | |
3074 | ||
224c3ddb SM |
3075 | string_new |
3076 | = (char *) xrealloc (string, (strlen (string) + to_len + 1)); | |
6dea1fbd JK |
3077 | |
3078 | /* Relocate the current S pointer. */ | |
3079 | s = s - string + string_new; | |
3080 | string = string_new; | |
3081 | ||
3082 | /* Replace from by to. */ | |
3083 | memmove (&s[to_len], &s[from_len], strlen (&s[from_len]) + 1); | |
3084 | memcpy (s, to, to_len); | |
3085 | ||
3086 | s += to_len; | |
3087 | } | |
3088 | else | |
3089 | s++; | |
3090 | } | |
3091 | ||
3092 | *stringp = string; | |
3093 | } | |
3094 | ||
0b6cb71e DE |
3095 | #ifdef HAVE_WAITPID |
3096 | ||
3097 | #ifdef SIGALRM | |
3098 | ||
3099 | /* SIGALRM handler for waitpid_with_timeout. */ | |
3100 | ||
3101 | static void | |
3102 | sigalrm_handler (int signo) | |
3103 | { | |
3104 | /* Nothing to do. */ | |
3105 | } | |
3106 | ||
3107 | #endif | |
3108 | ||
3109 | /* Wrapper to wait for child PID to die with TIMEOUT. | |
3110 | TIMEOUT is the time to stop waiting in seconds. | |
3111 | If TIMEOUT is zero, pass WNOHANG to waitpid. | |
3112 | Returns PID if it was successfully waited for, otherwise -1. | |
3113 | ||
3114 | Timeouts are currently implemented with alarm and SIGALRM. | |
3115 | If the host does not support them, this waits "forever". | |
3116 | It would be odd though for a host to have waitpid and not SIGALRM. */ | |
3117 | ||
3118 | pid_t | |
3119 | wait_to_die_with_timeout (pid_t pid, int *status, int timeout) | |
3120 | { | |
3121 | pid_t waitpid_result; | |
3122 | ||
3123 | gdb_assert (pid > 0); | |
3124 | gdb_assert (timeout >= 0); | |
3125 | ||
3126 | if (timeout > 0) | |
3127 | { | |
3128 | #ifdef SIGALRM | |
3129 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3130 | struct sigaction sa, old_sa; | |
3131 | ||
3132 | sa.sa_handler = sigalrm_handler; | |
3133 | sigemptyset (&sa.sa_mask); | |
3134 | sa.sa_flags = 0; | |
3135 | sigaction (SIGALRM, &sa, &old_sa); | |
3136 | #else | |
a40805d4 | 3137 | sighandler_t ofunc; |
0b6cb71e | 3138 | |
a40805d4 | 3139 | ofunc = signal (SIGALRM, sigalrm_handler); |
0b6cb71e DE |
3140 | #endif |
3141 | ||
3142 | alarm (timeout); | |
3143 | #endif | |
3144 | ||
3145 | waitpid_result = waitpid (pid, status, 0); | |
3146 | ||
3147 | #ifdef SIGALRM | |
3148 | alarm (0); | |
3149 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3150 | sigaction (SIGALRM, &old_sa, NULL); | |
3151 | #else | |
3152 | signal (SIGALRM, ofunc); | |
3153 | #endif | |
3154 | #endif | |
3155 | } | |
3156 | else | |
3157 | waitpid_result = waitpid (pid, status, WNOHANG); | |
3158 | ||
3159 | if (waitpid_result == pid) | |
3160 | return pid; | |
3161 | else | |
3162 | return -1; | |
3163 | } | |
3164 | ||
3165 | #endif /* HAVE_WAITPID */ | |
3166 | ||
202cbf1c JK |
3167 | /* Provide fnmatch compatible function for FNM_FILE_NAME matching of host files. |
3168 | Both FNM_FILE_NAME and FNM_NOESCAPE must be set in FLAGS. | |
3169 | ||
3170 | It handles correctly HAVE_DOS_BASED_FILE_SYSTEM and | |
3171 | HAVE_CASE_INSENSITIVE_FILE_SYSTEM. */ | |
3172 | ||
3173 | int | |
3174 | gdb_filename_fnmatch (const char *pattern, const char *string, int flags) | |
3175 | { | |
3176 | gdb_assert ((flags & FNM_FILE_NAME) != 0); | |
3177 | ||
3178 | /* It is unclear how '\' escaping vs. directory separator should coexist. */ | |
3179 | gdb_assert ((flags & FNM_NOESCAPE) != 0); | |
3180 | ||
3181 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3182 | { | |
3183 | char *pattern_slash, *string_slash; | |
3184 | ||
3185 | /* Replace '\' by '/' in both strings. */ | |
3186 | ||
0ae1c716 | 3187 | pattern_slash = (char *) alloca (strlen (pattern) + 1); |
202cbf1c JK |
3188 | strcpy (pattern_slash, pattern); |
3189 | pattern = pattern_slash; | |
3190 | for (; *pattern_slash != 0; pattern_slash++) | |
3191 | if (IS_DIR_SEPARATOR (*pattern_slash)) | |
3192 | *pattern_slash = '/'; | |
3193 | ||
0ae1c716 | 3194 | string_slash = (char *) alloca (strlen (string) + 1); |
202cbf1c JK |
3195 | strcpy (string_slash, string); |
3196 | string = string_slash; | |
3197 | for (; *string_slash != 0; string_slash++) | |
3198 | if (IS_DIR_SEPARATOR (*string_slash)) | |
3199 | *string_slash = '/'; | |
3200 | } | |
3201 | #endif /* HAVE_DOS_BASED_FILE_SYSTEM */ | |
3202 | ||
3203 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
3204 | flags |= FNM_CASEFOLD; | |
3205 | #endif /* HAVE_CASE_INSENSITIVE_FILE_SYSTEM */ | |
3206 | ||
3207 | return fnmatch (pattern, string, flags); | |
3208 | } | |
3209 | ||
cce0e923 DE |
3210 | /* Return the number of path elements in PATH. |
3211 | / = 1 | |
3212 | /foo = 2 | |
3213 | /foo/ = 2 | |
3214 | foo/bar = 2 | |
3215 | foo/ = 1 */ | |
3216 | ||
3217 | int | |
3218 | count_path_elements (const char *path) | |
3219 | { | |
3220 | int count = 0; | |
3221 | const char *p = path; | |
3222 | ||
3223 | if (HAS_DRIVE_SPEC (p)) | |
3224 | { | |
3225 | p = STRIP_DRIVE_SPEC (p); | |
3226 | ++count; | |
3227 | } | |
3228 | ||
3229 | while (*p != '\0') | |
3230 | { | |
3231 | if (IS_DIR_SEPARATOR (*p)) | |
3232 | ++count; | |
3233 | ++p; | |
3234 | } | |
3235 | ||
3236 | /* Backup one if last character is /, unless it's the only one. */ | |
3237 | if (p > path + 1 && IS_DIR_SEPARATOR (p[-1])) | |
3238 | --count; | |
3239 | ||
3240 | /* Add one for the file name, if present. */ | |
3241 | if (p > path && !IS_DIR_SEPARATOR (p[-1])) | |
3242 | ++count; | |
3243 | ||
3244 | return count; | |
3245 | } | |
3246 | ||
3247 | /* Remove N leading path elements from PATH. | |
3248 | N must be non-negative. | |
3249 | If PATH has more than N path elements then return NULL. | |
3250 | If PATH has exactly N path elements then return "". | |
3251 | See count_path_elements for a description of how we do the counting. */ | |
3252 | ||
3253 | const char * | |
3254 | strip_leading_path_elements (const char *path, int n) | |
3255 | { | |
3256 | int i = 0; | |
3257 | const char *p = path; | |
3258 | ||
3259 | gdb_assert (n >= 0); | |
3260 | ||
3261 | if (n == 0) | |
3262 | return p; | |
3263 | ||
3264 | if (HAS_DRIVE_SPEC (p)) | |
3265 | { | |
3266 | p = STRIP_DRIVE_SPEC (p); | |
3267 | ++i; | |
3268 | } | |
3269 | ||
3270 | while (i < n) | |
3271 | { | |
3272 | while (*p != '\0' && !IS_DIR_SEPARATOR (*p)) | |
3273 | ++p; | |
3274 | if (*p == '\0') | |
3275 | { | |
3276 | if (i + 1 == n) | |
3277 | return ""; | |
3278 | return NULL; | |
3279 | } | |
3280 | ++p; | |
3281 | ++i; | |
3282 | } | |
3283 | ||
3284 | return p; | |
3285 | } | |
3286 | ||
a99bc3d2 JB |
3287 | /* See utils.h. */ |
3288 | ||
3289 | void | |
3290 | copy_bitwise (gdb_byte *dest, ULONGEST dest_offset, | |
3291 | const gdb_byte *source, ULONGEST source_offset, | |
3292 | ULONGEST nbits, int bits_big_endian) | |
3293 | { | |
3294 | unsigned int buf, avail; | |
3295 | ||
3296 | if (nbits == 0) | |
3297 | return; | |
3298 | ||
3299 | if (bits_big_endian) | |
3300 | { | |
3301 | /* Start from the end, then work backwards. */ | |
3302 | dest_offset += nbits - 1; | |
3303 | dest += dest_offset / 8; | |
3304 | dest_offset = 7 - dest_offset % 8; | |
3305 | source_offset += nbits - 1; | |
3306 | source += source_offset / 8; | |
3307 | source_offset = 7 - source_offset % 8; | |
3308 | } | |
3309 | else | |
3310 | { | |
3311 | dest += dest_offset / 8; | |
3312 | dest_offset %= 8; | |
3313 | source += source_offset / 8; | |
3314 | source_offset %= 8; | |
3315 | } | |
3316 | ||
3317 | /* Fill BUF with DEST_OFFSET bits from the destination and 8 - | |
3318 | SOURCE_OFFSET bits from the source. */ | |
3319 | buf = *(bits_big_endian ? source-- : source++) >> source_offset; | |
3320 | buf <<= dest_offset; | |
3321 | buf |= *dest & ((1 << dest_offset) - 1); | |
3322 | ||
3323 | /* NBITS: bits yet to be written; AVAIL: BUF's fill level. */ | |
3324 | nbits += dest_offset; | |
3325 | avail = dest_offset + 8 - source_offset; | |
3326 | ||
3327 | /* Flush 8 bits from BUF, if appropriate. */ | |
3328 | if (nbits >= 8 && avail >= 8) | |
3329 | { | |
3330 | *(bits_big_endian ? dest-- : dest++) = buf; | |
3331 | buf >>= 8; | |
3332 | avail -= 8; | |
3333 | nbits -= 8; | |
3334 | } | |
3335 | ||
3336 | /* Copy the middle part. */ | |
3337 | if (nbits >= 8) | |
3338 | { | |
3339 | size_t len = nbits / 8; | |
3340 | ||
3341 | /* Use a faster method for byte-aligned copies. */ | |
3342 | if (avail == 0) | |
3343 | { | |
3344 | if (bits_big_endian) | |
3345 | { | |
3346 | dest -= len; | |
3347 | source -= len; | |
3348 | memcpy (dest + 1, source + 1, len); | |
3349 | } | |
3350 | else | |
3351 | { | |
3352 | memcpy (dest, source, len); | |
3353 | dest += len; | |
3354 | source += len; | |
3355 | } | |
3356 | } | |
3357 | else | |
3358 | { | |
3359 | while (len--) | |
3360 | { | |
3361 | buf |= *(bits_big_endian ? source-- : source++) << avail; | |
3362 | *(bits_big_endian ? dest-- : dest++) = buf; | |
3363 | buf >>= 8; | |
3364 | } | |
3365 | } | |
3366 | nbits %= 8; | |
3367 | } | |
3368 | ||
3369 | /* Write the last byte. */ | |
3370 | if (nbits) | |
3371 | { | |
3372 | if (avail < nbits) | |
3373 | buf |= *source << avail; | |
3374 | ||
3375 | buf &= (1 << nbits) - 1; | |
3376 | *dest = (*dest & (~0 << nbits)) | buf; | |
3377 | } | |
3378 | } | |
3379 | ||
3c16cced PA |
3380 | void |
3381 | _initialize_utils (void) | |
3382 | { | |
12904d37 TT |
3383 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
3384 | Set number of characters where GDB should wrap lines of its output."), _("\ | |
3385 | Show number of characters where GDB should wrap lines of its output."), _("\ | |
3386 | This affects where GDB wraps its output to fit the screen width.\n\ | |
3387 | Setting this to \"unlimited\" or zero prevents GDB from wrapping its output."), | |
3388 | set_width_command, | |
3389 | show_chars_per_line, | |
3390 | &setlist, &showlist); | |
3391 | ||
3392 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
3393 | Set number of lines in a page for GDB output pagination."), _("\ | |
3394 | Show number of lines in a page for GDB output pagination."), _("\ | |
3395 | This affects the number of lines after which GDB will pause\n\ | |
3396 | its output and ask you whether to continue.\n\ | |
3397 | Setting this to \"unlimited\" or zero causes GDB never pause during output."), | |
3398 | set_height_command, | |
3399 | show_lines_per_page, | |
3400 | &setlist, &showlist); | |
3401 | ||
3402 | add_setshow_boolean_cmd ("pagination", class_support, | |
3403 | &pagination_enabled, _("\ | |
3404 | Set state of GDB output pagination."), _("\ | |
3405 | Show state of GDB output pagination."), _("\ | |
3406 | When pagination is ON, GDB pauses at end of each screenful of\n\ | |
3407 | its output and asks you whether to continue.\n\ | |
3408 | Turning pagination off is an alternative to \"set height unlimited\"."), | |
3409 | NULL, | |
3410 | show_pagination_enabled, | |
3411 | &setlist, &showlist); | |
3412 | ||
3413 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, | |
3414 | &sevenbit_strings, _("\ | |
3415 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
3416 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
3417 | NULL, | |
3418 | show_sevenbit_strings, | |
3419 | &setprintlist, &showprintlist); | |
3420 | ||
3421 | add_setshow_boolean_cmd ("timestamp", class_maintenance, | |
3422 | &debug_timestamp, _("\ | |
3423 | Set timestamping of debugging messages."), _("\ | |
3424 | Show timestamping of debugging messages."), _("\ | |
3425 | When set, debugging messages will be marked with seconds and microseconds."), | |
3426 | NULL, | |
3427 | show_debug_timestamp, | |
3428 | &setdebuglist, &showdebuglist); | |
3429 | ||
3c16cced PA |
3430 | add_internal_problem_command (&internal_error_problem); |
3431 | add_internal_problem_command (&internal_warning_problem); | |
57fcfb1b | 3432 | add_internal_problem_command (&demangler_warning_problem); |
14278e1f TT |
3433 | |
3434 | #if GDB_SELF_TEST | |
1526853e | 3435 | selftests::register_test ("gdb_realpath", gdb_realpath_tests); |
14278e1f | 3436 | #endif |
3c16cced | 3437 | } |