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" |
2a3c1174 | 76 | #include "cli-out.h" |
8626589c | 77 | |
9a4105ab | 78 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
79 | |
80 | /* Prototypes for local functions */ | |
81 | ||
d9fcf2fb | 82 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
2a3c1174 PA |
83 | va_list, bool, bool) |
84 | ATTRIBUTE_PRINTF (2, 0); | |
c906108c | 85 | |
d9fcf2fb | 86 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 87 | |
a14ed312 | 88 | static void prompt_for_continue (void); |
c906108c | 89 | |
eb0d3137 | 90 | static void set_screen_size (void); |
a14ed312 | 91 | static void set_width (void); |
c906108c | 92 | |
260c0b2a DE |
93 | /* Time spent in prompt_for_continue in the currently executing command |
94 | waiting for user to respond. | |
95 | Initialized in make_command_stats_cleanup. | |
96 | Modified in prompt_for_continue and defaulted_query. | |
97 | Used in report_command_stats. */ | |
98 | ||
dcb07cfa | 99 | static std::chrono::steady_clock::duration prompt_for_continue_wait_time; |
260c0b2a | 100 | |
75feb17d DJ |
101 | /* A flag indicating whether to timestamp debugging messages. */ |
102 | ||
491144b5 | 103 | static bool debug_timestamp = false; |
75feb17d | 104 | |
491144b5 CB |
105 | /* True means that strings with character values >0x7F should be printed |
106 | as octal escapes. False means just print the value (e.g. it's an | |
c906108c SS |
107 | international character, and the terminal or window can cope.) */ |
108 | ||
491144b5 | 109 | bool sevenbit_strings = false; |
920d2a44 AC |
110 | static void |
111 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
112 | struct cmd_list_element *c, const char *value) | |
113 | { | |
3e43a32a MS |
114 | fprintf_filtered (file, _("Printing of 8-bit characters " |
115 | "in strings as \\nnn is %s.\n"), | |
920d2a44 AC |
116 | value); |
117 | } | |
c906108c | 118 | |
c906108c SS |
119 | /* String to be printed before warning messages, if any. */ |
120 | ||
69bbf465 | 121 | const char *warning_pre_print = "\nwarning: "; |
c906108c | 122 | |
491144b5 | 123 | bool pagination_enabled = true; |
920d2a44 AC |
124 | static void |
125 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
126 | struct cmd_list_element *c, const char *value) | |
127 | { | |
128 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
129 | } | |
130 | ||
c906108c | 131 | \f |
c5aa993b | 132 | |
8731e58e | 133 | |
f5a96129 AC |
134 | /* Print a warning message. The first argument STRING is the warning |
135 | message, used as an fprintf format string, the second is the | |
136 | va_list of arguments for that string. A warning is unfiltered (not | |
137 | paginated) so that the user does not need to page through each | |
138 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
139 | |
140 | void | |
f5a96129 | 141 | vwarning (const char *string, va_list args) |
c906108c | 142 | { |
9a4105ab AC |
143 | if (deprecated_warning_hook) |
144 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
145 | else |
146 | { | |
223ffa71 | 147 | gdb::optional<target_terminal::scoped_restore_terminal_state> term_state; |
0d2f5c07 | 148 | if (target_supports_terminal_ours ()) |
c5ac1540 | 149 | { |
223ffa71 TT |
150 | term_state.emplace (); |
151 | target_terminal::ours_for_output (); | |
c5ac1540 | 152 | } |
0d2f5c07 GB |
153 | if (filtered_printing_initialized ()) |
154 | wrap_here (""); /* Force out any buffered output. */ | |
f5a96129 AC |
155 | gdb_flush (gdb_stdout); |
156 | if (warning_pre_print) | |
306d9ac5 | 157 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
158 | vfprintf_unfiltered (gdb_stderr, string, args); |
159 | fprintf_unfiltered (gdb_stderr, "\n"); | |
f5a96129 | 160 | } |
c906108c SS |
161 | } |
162 | ||
c906108c SS |
163 | /* Print an error message and return to command level. |
164 | The first argument STRING is the error message, used as a fprintf string, | |
165 | and the remaining args are passed as arguments to it. */ | |
166 | ||
c25c4a8b | 167 | void |
4ce44c66 JM |
168 | verror (const char *string, va_list args) |
169 | { | |
6b1b7650 | 170 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
171 | } |
172 | ||
c25c4a8b | 173 | void |
d7e74731 | 174 | error_stream (const string_file &stream) |
2acceee2 | 175 | { |
d7e74731 | 176 | error (("%s"), stream.c_str ()); |
2acceee2 | 177 | } |
c906108c | 178 | |
2437fd32 GB |
179 | /* Emit a message and abort. */ |
180 | ||
181 | static void ATTRIBUTE_NORETURN | |
182 | abort_with_message (const char *msg) | |
183 | { | |
72542b8e | 184 | if (current_ui == NULL) |
2437fd32 GB |
185 | fputs (msg, stderr); |
186 | else | |
187 | fputs_unfiltered (msg, gdb_stderr); | |
188 | ||
189 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
190 | } | |
191 | ||
7991dee7 JK |
192 | /* Dump core trying to increase the core soft limit to hard limit first. */ |
193 | ||
eae7090b | 194 | void |
7991dee7 JK |
195 | dump_core (void) |
196 | { | |
197 | #ifdef HAVE_SETRLIMIT | |
206c1947 | 198 | struct rlimit rlim = { (rlim_t) RLIM_INFINITY, (rlim_t) RLIM_INFINITY }; |
7991dee7 JK |
199 | |
200 | setrlimit (RLIMIT_CORE, &rlim); | |
201 | #endif /* HAVE_SETRLIMIT */ | |
202 | ||
203 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
204 | } | |
205 | ||
3e43a32a | 206 | /* Check whether GDB will be able to dump core using the dump_core |
eae7090b GB |
207 | function. Returns zero if GDB cannot or should not dump core. |
208 | If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected. | |
209 | If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected. */ | |
7991dee7 | 210 | |
eae7090b GB |
211 | int |
212 | can_dump_core (enum resource_limit_kind limit_kind) | |
7991dee7 JK |
213 | { |
214 | #ifdef HAVE_GETRLIMIT | |
215 | struct rlimit rlim; | |
216 | ||
217 | /* Be quiet and assume we can dump if an error is returned. */ | |
218 | if (getrlimit (RLIMIT_CORE, &rlim) != 0) | |
219 | return 1; | |
220 | ||
eae7090b | 221 | switch (limit_kind) |
7991dee7 | 222 | { |
eae7090b GB |
223 | case LIMIT_CUR: |
224 | if (rlim.rlim_cur == 0) | |
225 | return 0; | |
565e0eda | 226 | /* Fall through. */ |
eae7090b GB |
227 | |
228 | case LIMIT_MAX: | |
229 | if (rlim.rlim_max == 0) | |
230 | return 0; | |
7991dee7 JK |
231 | } |
232 | #endif /* HAVE_GETRLIMIT */ | |
233 | ||
234 | return 1; | |
235 | } | |
236 | ||
eae7090b GB |
237 | /* Print a warning that we cannot dump core. */ |
238 | ||
239 | void | |
240 | warn_cant_dump_core (const char *reason) | |
241 | { | |
242 | fprintf_unfiltered (gdb_stderr, | |
243 | _("%s\nUnable to dump core, use `ulimit -c" | |
244 | " unlimited' before executing GDB next time.\n"), | |
245 | reason); | |
246 | } | |
247 | ||
248 | /* Check whether GDB will be able to dump core using the dump_core | |
249 | function, and print a warning if we cannot. */ | |
250 | ||
251 | static int | |
252 | can_dump_core_warn (enum resource_limit_kind limit_kind, | |
253 | const char *reason) | |
254 | { | |
255 | int core_dump_allowed = can_dump_core (limit_kind); | |
256 | ||
257 | if (!core_dump_allowed) | |
258 | warn_cant_dump_core (reason); | |
259 | ||
260 | return core_dump_allowed; | |
261 | } | |
262 | ||
3c16cced PA |
263 | /* Allow the user to configure the debugger behavior with respect to |
264 | what to do when an internal problem is detected. */ | |
265 | ||
266 | const char internal_problem_ask[] = "ask"; | |
267 | const char internal_problem_yes[] = "yes"; | |
268 | const char internal_problem_no[] = "no"; | |
40478521 | 269 | static const char *const internal_problem_modes[] = |
3c16cced PA |
270 | { |
271 | internal_problem_ask, | |
272 | internal_problem_yes, | |
273 | internal_problem_no, | |
274 | NULL | |
275 | }; | |
3c16cced | 276 | |
581e13c1 | 277 | /* Print a message reporting an internal error/warning. Ask the user |
dec43320 AC |
278 | if they want to continue, dump core, or just exit. Return |
279 | something to indicate a quit. */ | |
c906108c | 280 | |
dec43320 | 281 | struct internal_problem |
c906108c | 282 | { |
dec43320 | 283 | const char *name; |
57fcfb1b | 284 | int user_settable_should_quit; |
3c16cced | 285 | const char *should_quit; |
57fcfb1b | 286 | int user_settable_should_dump_core; |
3c16cced | 287 | const char *should_dump_core; |
dec43320 AC |
288 | }; |
289 | ||
290 | /* Report a problem, internal to GDB, to the user. Once the problem | |
291 | has been reported, and assuming GDB didn't quit, the caller can | |
292 | either allow execution to resume or throw an error. */ | |
293 | ||
a0b31db1 | 294 | static void ATTRIBUTE_PRINTF (4, 0) |
dec43320 | 295 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 296 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 297 | { |
dec43320 | 298 | static int dejavu; |
375fc983 | 299 | int quit_p; |
7be570e7 | 300 | int dump_core_p; |
e05550d7 | 301 | std::string reason; |
c906108c | 302 | |
dec43320 | 303 | /* Don't allow infinite error/warning recursion. */ |
714b1282 | 304 | { |
02cf60c7 | 305 | static const char msg[] = "Recursive internal problem.\n"; |
5d502164 | 306 | |
714b1282 AC |
307 | switch (dejavu) |
308 | { | |
309 | case 0: | |
310 | dejavu = 1; | |
311 | break; | |
312 | case 1: | |
313 | dejavu = 2; | |
2437fd32 | 314 | abort_with_message (msg); |
714b1282 AC |
315 | default: |
316 | dejavu = 3; | |
bf1d7d9c JB |
317 | /* Newer GLIBC versions put the warn_unused_result attribute |
318 | on write, but this is one of those rare cases where | |
319 | ignoring the return value is correct. Casting to (void) | |
320 | does not fix this problem. This is the solution suggested | |
321 | at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */ | |
322 | if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg)) | |
7991dee7 | 323 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
714b1282 AC |
324 | exit (1); |
325 | } | |
326 | } | |
c906108c | 327 | |
714b1282 AC |
328 | /* Create a string containing the full error/warning message. Need |
329 | to call query with this full string, as otherwize the reason | |
330 | (error/warning) and question become separated. Format using a | |
331 | style similar to a compiler error message. Include extra detail | |
332 | so that the user knows that they are living on the edge. */ | |
333 | { | |
f8bfbf22 | 334 | std::string msg = string_vprintf (fmt, ap); |
e05550d7 TT |
335 | reason = string_printf ("%s:%d: %s: %s\n" |
336 | "A problem internal to GDB has been detected,\n" | |
337 | "further debugging may prove unreliable.", | |
338 | file, line, problem->name, msg.c_str ()); | |
714b1282 | 339 | } |
7be570e7 | 340 | |
2437fd32 | 341 | /* Fall back to abort_with_message if gdb_stderr is not set up. */ |
72542b8e | 342 | if (current_ui == NULL) |
2437fd32 | 343 | { |
e05550d7 | 344 | fputs (reason.c_str (), stderr); |
2437fd32 GB |
345 | abort_with_message ("\n"); |
346 | } | |
347 | ||
348 | /* Try to get the message out and at the start of a new line. */ | |
223ffa71 | 349 | gdb::optional<target_terminal::scoped_restore_terminal_state> term_state; |
2437fd32 | 350 | if (target_supports_terminal_ours ()) |
c5ac1540 | 351 | { |
223ffa71 TT |
352 | term_state.emplace (); |
353 | target_terminal::ours_for_output (); | |
c5ac1540 | 354 | } |
2437fd32 GB |
355 | if (filtered_printing_initialized ()) |
356 | begin_line (); | |
357 | ||
196a707b | 358 | /* Emit the message unless query will emit it below. */ |
2437fd32 GB |
359 | if (problem->should_quit != internal_problem_ask |
360 | || !confirm | |
361 | || !filtered_printing_initialized ()) | |
e05550d7 | 362 | fprintf_unfiltered (gdb_stderr, "%s\n", reason.c_str ()); |
196a707b | 363 | |
3c16cced | 364 | if (problem->should_quit == internal_problem_ask) |
dec43320 | 365 | { |
dec43320 | 366 | /* Default (yes/batch case) is to quit GDB. When in batch mode |
3c16cced PA |
367 | this lessens the likelihood of GDB going into an infinite |
368 | loop. */ | |
2437fd32 | 369 | if (!confirm || !filtered_printing_initialized ()) |
196a707b | 370 | quit_p = 1; |
26bb68be | 371 | else |
e05550d7 TT |
372 | quit_p = query (_("%s\nQuit this debugging session? "), |
373 | reason.c_str ()); | |
dec43320 | 374 | } |
3c16cced PA |
375 | else if (problem->should_quit == internal_problem_yes) |
376 | quit_p = 1; | |
377 | else if (problem->should_quit == internal_problem_no) | |
378 | quit_p = 0; | |
379 | else | |
380 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
dec43320 | 381 | |
add6c04d GB |
382 | fputs_unfiltered (_("\nThis is a bug, please report it."), gdb_stderr); |
383 | if (REPORT_BUGS_TO[0]) | |
384 | fprintf_unfiltered (gdb_stderr, _(" For instructions, see:\n%s."), | |
385 | REPORT_BUGS_TO); | |
386 | fputs_unfiltered ("\n\n", gdb_stderr); | |
387 | ||
3c16cced | 388 | if (problem->should_dump_core == internal_problem_ask) |
dec43320 | 389 | { |
e05550d7 | 390 | if (!can_dump_core_warn (LIMIT_MAX, reason.c_str ())) |
7991dee7 | 391 | dump_core_p = 0; |
2437fd32 GB |
392 | else if (!filtered_printing_initialized ()) |
393 | dump_core_p = 1; | |
7991dee7 JK |
394 | else |
395 | { | |
396 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
397 | `dropping' so that it is easier to see that something went | |
398 | wrong in GDB. */ | |
e05550d7 TT |
399 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), |
400 | reason.c_str ()); | |
7991dee7 | 401 | } |
dec43320 | 402 | } |
3c16cced | 403 | else if (problem->should_dump_core == internal_problem_yes) |
e05550d7 | 404 | dump_core_p = can_dump_core_warn (LIMIT_MAX, reason.c_str ()); |
3c16cced PA |
405 | else if (problem->should_dump_core == internal_problem_no) |
406 | dump_core_p = 0; | |
407 | else | |
408 | internal_error (__FILE__, __LINE__, _("bad switch")); | |
7be570e7 | 409 | |
375fc983 | 410 | if (quit_p) |
7be570e7 JM |
411 | { |
412 | if (dump_core_p) | |
7991dee7 | 413 | dump_core (); |
375fc983 AC |
414 | else |
415 | exit (1); | |
7be570e7 JM |
416 | } |
417 | else | |
418 | { | |
419 | if (dump_core_p) | |
375fc983 | 420 | { |
9b265ec2 | 421 | #ifdef HAVE_WORKING_FORK |
375fc983 | 422 | if (fork () == 0) |
7991dee7 | 423 | dump_core (); |
9b265ec2 | 424 | #endif |
375fc983 | 425 | } |
7be570e7 | 426 | } |
96baa820 JM |
427 | |
428 | dejavu = 0; | |
dec43320 AC |
429 | } |
430 | ||
431 | static struct internal_problem internal_error_problem = { | |
57fcfb1b | 432 | "internal-error", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
433 | }; |
434 | ||
c25c4a8b | 435 | void |
8731e58e | 436 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
437 | { |
438 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
2c51604d | 439 | throw_quit (_("Command aborted.")); |
c906108c SS |
440 | } |
441 | ||
dec43320 | 442 | static struct internal_problem internal_warning_problem = { |
57fcfb1b | 443 | "internal-warning", 1, internal_problem_ask, 1, internal_problem_ask |
dec43320 AC |
444 | }; |
445 | ||
446 | void | |
8731e58e | 447 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
448 | { |
449 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
450 | } | |
451 | ||
57fcfb1b GB |
452 | static struct internal_problem demangler_warning_problem = { |
453 | "demangler-warning", 1, internal_problem_ask, 0, internal_problem_no | |
454 | }; | |
455 | ||
456 | void | |
457 | demangler_vwarning (const char *file, int line, const char *fmt, va_list ap) | |
458 | { | |
459 | internal_vproblem (&demangler_warning_problem, file, line, fmt, ap); | |
460 | } | |
461 | ||
462 | void | |
463 | demangler_warning (const char *file, int line, const char *string, ...) | |
464 | { | |
465 | va_list ap; | |
466 | ||
467 | va_start (ap, string); | |
468 | demangler_vwarning (file, line, string, ap); | |
469 | va_end (ap); | |
470 | } | |
471 | ||
3c16cced PA |
472 | /* Dummy functions to keep add_prefix_cmd happy. */ |
473 | ||
474 | static void | |
981a3fb3 | 475 | set_internal_problem_cmd (const char *args, int from_tty) |
3c16cced PA |
476 | { |
477 | } | |
478 | ||
479 | static void | |
981a3fb3 | 480 | show_internal_problem_cmd (const char *args, int from_tty) |
3c16cced PA |
481 | { |
482 | } | |
483 | ||
484 | /* When GDB reports an internal problem (error or warning) it gives | |
485 | the user the opportunity to quit GDB and/or create a core file of | |
486 | the current debug session. This function registers a few commands | |
487 | that make it possible to specify that GDB should always or never | |
488 | quit or create a core file, without asking. The commands look | |
489 | like: | |
490 | ||
491 | maint set PROBLEM-NAME quit ask|yes|no | |
492 | maint show PROBLEM-NAME quit | |
493 | maint set PROBLEM-NAME corefile ask|yes|no | |
494 | maint show PROBLEM-NAME corefile | |
495 | ||
496 | Where PROBLEM-NAME is currently "internal-error" or | |
497 | "internal-warning". */ | |
498 | ||
499 | static void | |
500 | add_internal_problem_command (struct internal_problem *problem) | |
501 | { | |
502 | struct cmd_list_element **set_cmd_list; | |
503 | struct cmd_list_element **show_cmd_list; | |
504 | char *set_doc; | |
505 | char *show_doc; | |
506 | ||
8d749320 SM |
507 | set_cmd_list = XNEW (struct cmd_list_element *); |
508 | show_cmd_list = XNEW (struct cmd_list_element *); | |
3c16cced PA |
509 | *set_cmd_list = NULL; |
510 | *show_cmd_list = NULL; | |
511 | ||
512 | set_doc = xstrprintf (_("Configure what GDB does when %s is detected."), | |
513 | problem->name); | |
514 | ||
515 | show_doc = xstrprintf (_("Show what GDB does when %s is detected."), | |
516 | problem->name); | |
517 | ||
981a3fb3 | 518 | add_prefix_cmd (problem->name, |
3c16cced PA |
519 | class_maintenance, set_internal_problem_cmd, set_doc, |
520 | set_cmd_list, | |
c4f7c687 MK |
521 | concat ("maintenance set ", problem->name, " ", |
522 | (char *) NULL), | |
3c16cced PA |
523 | 0/*allow-unknown*/, &maintenance_set_cmdlist); |
524 | ||
981a3fb3 | 525 | add_prefix_cmd (problem->name, |
3c16cced PA |
526 | class_maintenance, show_internal_problem_cmd, show_doc, |
527 | show_cmd_list, | |
c4f7c687 MK |
528 | concat ("maintenance show ", problem->name, " ", |
529 | (char *) NULL), | |
3c16cced PA |
530 | 0/*allow-unknown*/, &maintenance_show_cmdlist); |
531 | ||
57fcfb1b GB |
532 | if (problem->user_settable_should_quit) |
533 | { | |
534 | set_doc = xstrprintf (_("Set whether GDB should quit " | |
590042fc | 535 | "when an %s is detected."), |
57fcfb1b GB |
536 | problem->name); |
537 | show_doc = xstrprintf (_("Show whether GDB will quit " | |
590042fc | 538 | "when an %s is detected."), |
57fcfb1b GB |
539 | problem->name); |
540 | add_setshow_enum_cmd ("quit", class_maintenance, | |
541 | internal_problem_modes, | |
542 | &problem->should_quit, | |
543 | set_doc, | |
544 | show_doc, | |
545 | NULL, /* help_doc */ | |
546 | NULL, /* setfunc */ | |
547 | NULL, /* showfunc */ | |
548 | set_cmd_list, | |
549 | show_cmd_list); | |
550 | ||
551 | xfree (set_doc); | |
552 | xfree (show_doc); | |
553 | } | |
1eefb858 | 554 | |
57fcfb1b GB |
555 | if (problem->user_settable_should_dump_core) |
556 | { | |
557 | set_doc = xstrprintf (_("Set whether GDB should create a core " | |
590042fc | 558 | "file of GDB when %s is detected."), |
57fcfb1b GB |
559 | problem->name); |
560 | show_doc = xstrprintf (_("Show whether GDB will create a core " | |
590042fc | 561 | "file of GDB when %s is detected."), |
57fcfb1b GB |
562 | problem->name); |
563 | add_setshow_enum_cmd ("corefile", class_maintenance, | |
564 | internal_problem_modes, | |
565 | &problem->should_dump_core, | |
566 | set_doc, | |
567 | show_doc, | |
568 | NULL, /* help_doc */ | |
569 | NULL, /* setfunc */ | |
570 | NULL, /* showfunc */ | |
571 | set_cmd_list, | |
572 | show_cmd_list); | |
573 | ||
574 | xfree (set_doc); | |
575 | xfree (show_doc); | |
576 | } | |
3c16cced PA |
577 | } |
578 | ||
0cf4063e | 579 | /* Return a newly allocated string, containing the PREFIX followed |
18e9961f | 580 | by the system error message for errno (separated by a colon). */ |
0cf4063e | 581 | |
18e9961f | 582 | static std::string |
0cf4063e JB |
583 | perror_string (const char *prefix) |
584 | { | |
b231e86a | 585 | const char *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 | 630 | { |
b231e86a CB |
631 | const char *err = safe_strerror (errcode); |
632 | char *combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
c906108c SS |
633 | strcpy (combined, string); |
634 | strcat (combined, ": "); | |
635 | strcat (combined, err); | |
636 | ||
637 | /* We want anything which was printed on stdout to come out first, before | |
638 | this message. */ | |
639 | gdb_flush (gdb_stdout); | |
640 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
641 | } | |
642 | ||
643 | /* Control C eventually causes this to be called, at a convenient time. */ | |
644 | ||
645 | void | |
fba45db2 | 646 | quit (void) |
c906108c | 647 | { |
06c868a8 JK |
648 | if (sync_quit_force_run) |
649 | { | |
650 | sync_quit_force_run = 0; | |
268a799a | 651 | quit_force (NULL, 0); |
06c868a8 JK |
652 | } |
653 | ||
7be570e7 JM |
654 | #ifdef __MSDOS__ |
655 | /* No steenking SIGINT will ever be coming our way when the | |
656 | program is resumed. Don't lie. */ | |
2c51604d | 657 | throw_quit ("Quit"); |
7be570e7 | 658 | #else |
c906108c | 659 | if (job_control |
8731e58e AC |
660 | /* If there is no terminal switching for this target, then we can't |
661 | possibly get screwed by the lack of job control. */ | |
b0ed115f | 662 | || !target_supports_terminal_ours ()) |
2c51604d | 663 | throw_quit ("Quit"); |
c906108c | 664 | else |
2c51604d | 665 | throw_quit ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 666 | #endif |
c906108c SS |
667 | } |
668 | ||
abc56d60 PA |
669 | /* See defs.h. */ |
670 | ||
671 | void | |
672 | maybe_quit (void) | |
673 | { | |
048094ac | 674 | if (sync_quit_force_run) |
abc56d60 | 675 | quit (); |
048094ac PA |
676 | |
677 | quit_handler (); | |
abc56d60 PA |
678 | } |
679 | ||
c906108c | 680 | \f |
c906108c | 681 | /* Called when a memory allocation fails, with the number of bytes of |
581e13c1 | 682 | memory requested in SIZE. */ |
c906108c | 683 | |
c25c4a8b | 684 | void |
d26e3629 | 685 | malloc_failure (long size) |
c906108c SS |
686 | { |
687 | if (size > 0) | |
688 | { | |
8e65ff28 | 689 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 690 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 691 | size); |
c906108c SS |
692 | } |
693 | else | |
694 | { | |
e2e0b3e5 | 695 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
696 | } |
697 | } | |
698 | ||
c906108c SS |
699 | /* My replacement for the read system call. |
700 | Used like `read' but keeps going if `read' returns too soon. */ | |
701 | ||
702 | int | |
fba45db2 | 703 | myread (int desc, char *addr, int len) |
c906108c | 704 | { |
52f0bd74 | 705 | int val; |
c906108c SS |
706 | int orglen = len; |
707 | ||
708 | while (len > 0) | |
709 | { | |
710 | val = read (desc, addr, len); | |
711 | if (val < 0) | |
712 | return val; | |
713 | if (val == 0) | |
714 | return orglen - len; | |
715 | len -= val; | |
716 | addr += val; | |
717 | } | |
718 | return orglen; | |
719 | } | |
d26e3629 | 720 | |
c906108c | 721 | void |
aa1ee363 | 722 | print_spaces (int n, struct ui_file *file) |
c906108c | 723 | { |
392a587b | 724 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
725 | } |
726 | ||
727 | /* Print a host address. */ | |
728 | ||
729 | void | |
b80c3053 | 730 | gdb_print_host_address_1 (const void *addr, struct ui_file *stream) |
c906108c | 731 | { |
ea8992ce | 732 | fprintf_filtered (stream, "%s", host_address_to_string (addr)); |
c906108c | 733 | } |
7c50a931 | 734 | |
c906108c | 735 | \f |
c5aa993b | 736 | |
223ffa71 TT |
737 | /* An RAII class that sets up to handle input and then tears down |
738 | during destruction. */ | |
3eb7562a | 739 | |
223ffa71 | 740 | class scoped_input_handler |
3eb7562a | 741 | { |
223ffa71 | 742 | public: |
3eb7562a | 743 | |
223ffa71 | 744 | scoped_input_handler () |
c2f97536 | 745 | : m_quit_handler (&quit_handler, default_quit_handler), |
223ffa71 TT |
746 | m_ui (NULL) |
747 | { | |
748 | target_terminal::ours (); | |
749 | ui_register_input_event_handler (current_ui); | |
750 | if (current_ui->prompt_state == PROMPT_BLOCKED) | |
751 | m_ui = current_ui; | |
752 | } | |
3eb7562a | 753 | |
223ffa71 TT |
754 | ~scoped_input_handler () |
755 | { | |
756 | if (m_ui != NULL) | |
757 | ui_unregister_input_event_handler (m_ui); | |
758 | } | |
3eb7562a | 759 | |
223ffa71 | 760 | DISABLE_COPY_AND_ASSIGN (scoped_input_handler); |
3eb7562a | 761 | |
223ffa71 | 762 | private: |
3eb7562a | 763 | |
223ffa71 TT |
764 | /* Save and restore the terminal state. */ |
765 | target_terminal::scoped_restore_terminal_state m_term_state; | |
3eb7562a | 766 | |
223ffa71 | 767 | /* Save and restore the quit handler. */ |
c2f97536 | 768 | scoped_restore_tmpl<quit_handler_ftype *> m_quit_handler; |
223ffa71 TT |
769 | |
770 | /* The saved UI, if non-NULL. */ | |
771 | struct ui *m_ui; | |
772 | }; | |
3eb7562a | 773 | |
db1ff28b JK |
774 | \f |
775 | ||
981c7f5a | 776 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 777 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
778 | answer is yes, or default the answer to the specified default |
779 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
780 | default answer, or '\0' for no default. | |
cbdeadca JJ |
781 | CTLSTR is the control string and should end in "? ". It should |
782 | not say how to answer, because we do that. | |
783 | ARGS are the arguments passed along with the CTLSTR argument to | |
784 | printf. */ | |
785 | ||
a0b31db1 | 786 | static int ATTRIBUTE_PRINTF (1, 0) |
cbdeadca JJ |
787 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
788 | { | |
cbdeadca JJ |
789 | int retval; |
790 | int def_value; | |
791 | char def_answer, not_def_answer; | |
a121b7c1 | 792 | const char *y_string, *n_string; |
cbdeadca JJ |
793 | |
794 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
795 | if (defchar == '\0') |
796 | { | |
797 | def_value = 1; | |
798 | def_answer = 'Y'; | |
799 | not_def_answer = 'N'; | |
800 | y_string = "y"; | |
801 | n_string = "n"; | |
802 | } | |
803 | else if (defchar == 'y') | |
cbdeadca JJ |
804 | { |
805 | def_value = 1; | |
806 | def_answer = 'Y'; | |
807 | not_def_answer = 'N'; | |
808 | y_string = "[y]"; | |
809 | n_string = "n"; | |
810 | } | |
811 | else | |
812 | { | |
813 | def_value = 0; | |
814 | def_answer = 'N'; | |
815 | not_def_answer = 'Y'; | |
816 | y_string = "y"; | |
817 | n_string = "[n]"; | |
818 | } | |
819 | ||
981c7f5a | 820 | /* Automatically answer the default value if the user did not want |
a502cf95 | 821 | prompts or the command was issued with the server prefix. */ |
e360902b | 822 | if (!confirm || server_command) |
981c7f5a DJ |
823 | return def_value; |
824 | ||
825 | /* If input isn't coming from the user directly, just say what | |
7a01c6e0 | 826 | question we're asking, and then answer the default automatically. This |
981c7f5a DJ |
827 | way, important error messages don't get lost when talking to GDB |
828 | over a pipe. */ | |
268a799a | 829 | if (current_ui->instream != current_ui->stdin_stream |
26a06916 SM |
830 | || !input_interactive_p (current_ui) |
831 | /* Restrict queries to the main UI. */ | |
832 | || current_ui != main_ui) | |
981c7f5a | 833 | { |
223ffa71 TT |
834 | target_terminal::scoped_restore_terminal_state term_state; |
835 | target_terminal::ours_for_output (); | |
981c7f5a DJ |
836 | wrap_here (""); |
837 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
838 | ||
3e43a32a MS |
839 | printf_filtered (_("(%s or %s) [answered %c; " |
840 | "input not from terminal]\n"), | |
981c7f5a | 841 | y_string, n_string, def_answer); |
981c7f5a DJ |
842 | |
843 | return def_value; | |
844 | } | |
845 | ||
9a4105ab | 846 | if (deprecated_query_hook) |
cbdeadca | 847 | { |
223ffa71 TT |
848 | target_terminal::scoped_restore_terminal_state term_state; |
849 | return deprecated_query_hook (ctlstr, args); | |
651ce16a | 850 | } |
80dbc9fd | 851 | |
981c7f5a | 852 | /* Format the question outside of the loop, to avoid reusing args. */ |
e05550d7 TT |
853 | std::string question = string_vprintf (ctlstr, args); |
854 | std::string prompt | |
855 | = string_printf (_("%s%s(%s or %s) %s"), | |
856 | annotation_level > 1 ? "\n\032\032pre-query\n" : "", | |
857 | question.c_str (), y_string, n_string, | |
858 | annotation_level > 1 ? "\n\032\032query\n" : ""); | |
981c7f5a | 859 | |
dcb07cfa PA |
860 | /* Used to add duration we waited for user to respond to |
861 | prompt_for_continue_wait_time. */ | |
862 | using namespace std::chrono; | |
863 | steady_clock::time_point prompt_started = steady_clock::now (); | |
260c0b2a | 864 | |
223ffa71 | 865 | scoped_input_handler prepare_input; |
651ce16a | 866 | |
cbdeadca JJ |
867 | while (1) |
868 | { | |
588dcc3e | 869 | char *response, answer; |
cbdeadca | 870 | |
cbdeadca | 871 | gdb_flush (gdb_stdout); |
e05550d7 | 872 | response = gdb_readline_wrapper (prompt.c_str ()); |
cbdeadca | 873 | |
588dcc3e | 874 | if (response == NULL) /* C-d */ |
cbdeadca | 875 | { |
fa3fd85b | 876 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
877 | retval = def_value; |
878 | break; | |
879 | } | |
588dcc3e PP |
880 | |
881 | answer = response[0]; | |
882 | xfree (response); | |
cbdeadca JJ |
883 | |
884 | if (answer >= 'a') | |
885 | answer -= 040; | |
886 | /* Check answer. For the non-default, the user must specify | |
887 | the non-default explicitly. */ | |
888 | if (answer == not_def_answer) | |
889 | { | |
890 | retval = !def_value; | |
891 | break; | |
892 | } | |
981c7f5a DJ |
893 | /* Otherwise, if a default was specified, the user may either |
894 | specify the required input or have it default by entering | |
895 | nothing. */ | |
896 | if (answer == def_answer | |
588dcc3e | 897 | || (defchar != '\0' && answer == '\0')) |
cbdeadca JJ |
898 | { |
899 | retval = def_value; | |
900 | break; | |
901 | } | |
902 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 903 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
904 | y_string, n_string); |
905 | } | |
906 | ||
260c0b2a | 907 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
dcb07cfa | 908 | prompt_for_continue_wait_time += steady_clock::now () - prompt_started; |
260c0b2a | 909 | |
cbdeadca | 910 | if (annotation_level > 1) |
a3f17187 | 911 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
912 | return retval; |
913 | } | |
914 | \f | |
915 | ||
916 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
917 | answer is yes, or 0 if answer is defaulted. | |
918 | Takes three args which are given to printf to print the question. | |
919 | The first, a control string, should end in "? ". | |
920 | It should not say how to answer, because we do that. */ | |
921 | ||
922 | int | |
923 | nquery (const char *ctlstr, ...) | |
924 | { | |
925 | va_list args; | |
899500d6 | 926 | int ret; |
cbdeadca JJ |
927 | |
928 | va_start (args, ctlstr); | |
899500d6 | 929 | ret = defaulted_query (ctlstr, 'n', args); |
cbdeadca | 930 | va_end (args); |
899500d6 | 931 | return ret; |
cbdeadca JJ |
932 | } |
933 | ||
934 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
935 | answer is yes, or 1 if answer is defaulted. | |
936 | Takes three args which are given to printf to print the question. | |
937 | The first, a control string, should end in "? ". | |
938 | It should not say how to answer, because we do that. */ | |
939 | ||
940 | int | |
941 | yquery (const char *ctlstr, ...) | |
942 | { | |
943 | va_list args; | |
899500d6 | 944 | int ret; |
cbdeadca JJ |
945 | |
946 | va_start (args, ctlstr); | |
899500d6 | 947 | ret = defaulted_query (ctlstr, 'y', args); |
cbdeadca | 948 | va_end (args); |
899500d6 | 949 | return ret; |
cbdeadca JJ |
950 | } |
951 | ||
981c7f5a DJ |
952 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
953 | Takes three args which are given to printf to print the question. | |
954 | The first, a control string, should end in "? ". | |
955 | It should not say how to answer, because we do that. */ | |
956 | ||
957 | int | |
958 | query (const char *ctlstr, ...) | |
959 | { | |
960 | va_list args; | |
899500d6 | 961 | int ret; |
981c7f5a DJ |
962 | |
963 | va_start (args, ctlstr); | |
899500d6 | 964 | ret = defaulted_query (ctlstr, '\0', args); |
981c7f5a | 965 | va_end (args); |
899500d6 | 966 | return ret; |
981c7f5a DJ |
967 | } |
968 | ||
6c7a06a3 TT |
969 | /* A helper for parse_escape that converts a host character to a |
970 | target character. C is the host character. If conversion is | |
971 | possible, then the target character is stored in *TARGET_C and the | |
972 | function returns 1. Otherwise, the function returns 0. */ | |
973 | ||
974 | static int | |
f870a310 | 975 | host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c) |
234b45d4 | 976 | { |
6c7a06a3 | 977 | char the_char = c; |
6c7a06a3 | 978 | int result = 0; |
234b45d4 | 979 | |
8268c778 | 980 | auto_obstack host_data; |
234b45d4 | 981 | |
f870a310 | 982 | convert_between_encodings (target_charset (gdbarch), host_charset (), |
ac91cd70 PA |
983 | (gdb_byte *) &the_char, 1, 1, |
984 | &host_data, translit_none); | |
6c7a06a3 TT |
985 | |
986 | if (obstack_object_size (&host_data) == 1) | |
987 | { | |
988 | result = 1; | |
989 | *target_c = *(char *) obstack_base (&host_data); | |
990 | } | |
991 | ||
6c7a06a3 | 992 | return result; |
234b45d4 KB |
993 | } |
994 | ||
c906108c SS |
995 | /* Parse a C escape sequence. STRING_PTR points to a variable |
996 | containing a pointer to the string to parse. That pointer | |
997 | should point to the character after the \. That pointer | |
998 | is updated past the characters we use. The value of the | |
999 | escape sequence is returned. | |
1000 | ||
1001 | A negative value means the sequence \ newline was seen, | |
1002 | which is supposed to be equivalent to nothing at all. | |
1003 | ||
1004 | If \ is followed by a null character, we return a negative | |
1005 | value and leave the string pointer pointing at the null character. | |
1006 | ||
1007 | If \ is followed by 000, we return 0 and leave the string pointer | |
1008 | after the zeros. A value of 0 does not mean end of string. */ | |
1009 | ||
1010 | int | |
d7561cbb | 1011 | parse_escape (struct gdbarch *gdbarch, const char **string_ptr) |
c906108c | 1012 | { |
581e13c1 | 1013 | int target_char = -2; /* Initialize to avoid GCC warnings. */ |
52f0bd74 | 1014 | int c = *(*string_ptr)++; |
e0627e85 | 1015 | |
6c7a06a3 TT |
1016 | switch (c) |
1017 | { | |
8731e58e AC |
1018 | case '\n': |
1019 | return -2; | |
1020 | case 0: | |
1021 | (*string_ptr)--; | |
1022 | return 0; | |
8731e58e AC |
1023 | |
1024 | case '0': | |
1025 | case '1': | |
1026 | case '2': | |
1027 | case '3': | |
1028 | case '4': | |
1029 | case '5': | |
1030 | case '6': | |
1031 | case '7': | |
1032 | { | |
6c7a06a3 | 1033 | int i = host_hex_value (c); |
aa1ee363 | 1034 | int count = 0; |
8731e58e AC |
1035 | while (++count < 3) |
1036 | { | |
5cb316ef | 1037 | c = (**string_ptr); |
6c7a06a3 | 1038 | if (isdigit (c) && c != '8' && c != '9') |
8731e58e | 1039 | { |
5cb316ef | 1040 | (*string_ptr)++; |
8731e58e | 1041 | i *= 8; |
6c7a06a3 | 1042 | i += host_hex_value (c); |
8731e58e AC |
1043 | } |
1044 | else | |
1045 | { | |
8731e58e AC |
1046 | break; |
1047 | } | |
1048 | } | |
1049 | return i; | |
1050 | } | |
6c7a06a3 TT |
1051 | |
1052 | case 'a': | |
1053 | c = '\a'; | |
1054 | break; | |
1055 | case 'b': | |
1056 | c = '\b'; | |
1057 | break; | |
1058 | case 'f': | |
1059 | c = '\f'; | |
1060 | break; | |
1061 | case 'n': | |
1062 | c = '\n'; | |
1063 | break; | |
1064 | case 'r': | |
1065 | c = '\r'; | |
1066 | break; | |
1067 | case 't': | |
1068 | c = '\t'; | |
1069 | break; | |
1070 | case 'v': | |
1071 | c = '\v'; | |
1072 | break; | |
1073 | ||
1074 | default: | |
1075 | break; | |
1076 | } | |
1077 | ||
f870a310 | 1078 | if (!host_char_to_target (gdbarch, c, &target_char)) |
3351ea09 JB |
1079 | error (_("The escape sequence `\\%c' is equivalent to plain `%c'," |
1080 | " which has no equivalent\nin the `%s' character set."), | |
905b671b | 1081 | c, c, target_charset (gdbarch)); |
6c7a06a3 | 1082 | return target_char; |
c906108c SS |
1083 | } |
1084 | \f | |
1085 | /* Print the character C on STREAM as part of the contents of a literal | |
1086 | string whose delimiter is QUOTER. Note that this routine should only | |
f9acce4a | 1087 | be called for printing things which are independent of the language |
6ef284bd SM |
1088 | of the program being debugged. |
1089 | ||
1090 | printchar will normally escape backslashes and instances of QUOTER. If | |
1091 | QUOTER is 0, printchar won't escape backslashes or any quoting character. | |
1092 | As a side effect, if you pass the backslash character as the QUOTER, | |
1093 | printchar will escape backslashes as usual, but not any other quoting | |
1094 | character. */ | |
c906108c | 1095 | |
43e526b9 | 1096 | static void |
7c4e78cf | 1097 | printchar (int c, do_fputc_ftype do_fputc, ui_file *stream, int quoter) |
c906108c | 1098 | { |
c906108c SS |
1099 | c &= 0xFF; /* Avoid sign bit follies */ |
1100 | ||
c5aa993b JM |
1101 | if (c < 0x20 || /* Low control chars */ |
1102 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1103 | (sevenbit_strings && c >= 0x80)) | |
1104 | { /* high order bit set */ | |
7c4e78cf SM |
1105 | do_fputc ('\\', stream); |
1106 | ||
c5aa993b JM |
1107 | switch (c) |
1108 | { | |
1109 | case '\n': | |
7c4e78cf | 1110 | do_fputc ('n', stream); |
c5aa993b JM |
1111 | break; |
1112 | case '\b': | |
7c4e78cf | 1113 | do_fputc ('b', stream); |
c5aa993b JM |
1114 | break; |
1115 | case '\t': | |
7c4e78cf | 1116 | do_fputc ('t', stream); |
c5aa993b JM |
1117 | break; |
1118 | case '\f': | |
7c4e78cf | 1119 | do_fputc ('f', stream); |
c5aa993b JM |
1120 | break; |
1121 | case '\r': | |
7c4e78cf | 1122 | do_fputc ('r', stream); |
c5aa993b JM |
1123 | break; |
1124 | case '\033': | |
7c4e78cf | 1125 | do_fputc ('e', stream); |
c5aa993b JM |
1126 | break; |
1127 | case '\007': | |
7c4e78cf | 1128 | do_fputc ('a', stream); |
c5aa993b JM |
1129 | break; |
1130 | default: | |
7c4e78cf SM |
1131 | { |
1132 | do_fputc ('0' + ((c >> 6) & 0x7), stream); | |
1133 | do_fputc ('0' + ((c >> 3) & 0x7), stream); | |
1134 | do_fputc ('0' + ((c >> 0) & 0x7), stream); | |
1135 | break; | |
1136 | } | |
c5aa993b JM |
1137 | } |
1138 | } | |
1139 | else | |
1140 | { | |
6ef284bd | 1141 | if (quoter != 0 && (c == '\\' || c == quoter)) |
7c4e78cf SM |
1142 | do_fputc ('\\', stream); |
1143 | do_fputc (c, stream); | |
c5aa993b | 1144 | } |
c906108c | 1145 | } |
43e526b9 JM |
1146 | |
1147 | /* Print the character C on STREAM as part of the contents of a | |
1148 | literal string whose delimiter is QUOTER. Note that these routines | |
1149 | should only be call for printing things which are independent of | |
581e13c1 | 1150 | the language of the program being debugged. */ |
43e526b9 JM |
1151 | |
1152 | void | |
fba45db2 | 1153 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1154 | { |
1155 | while (*str) | |
7c4e78cf | 1156 | printchar (*str++, fputc_filtered, stream, quoter); |
43e526b9 JM |
1157 | } |
1158 | ||
1159 | void | |
fba45db2 | 1160 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1161 | { |
1162 | while (*str) | |
7c4e78cf | 1163 | printchar (*str++, fputc_unfiltered, stream, quoter); |
43e526b9 JM |
1164 | } |
1165 | ||
0876f84a DJ |
1166 | void |
1167 | fputstrn_filtered (const char *str, int n, int quoter, | |
1168 | struct ui_file *stream) | |
1169 | { | |
7c4e78cf SM |
1170 | for (int i = 0; i < n; i++) |
1171 | printchar (str[i], fputc_filtered, stream, quoter); | |
0876f84a DJ |
1172 | } |
1173 | ||
43e526b9 | 1174 | void |
8731e58e | 1175 | fputstrn_unfiltered (const char *str, int n, int quoter, |
7c4e78cf | 1176 | do_fputc_ftype do_fputc, struct ui_file *stream) |
43e526b9 | 1177 | { |
7c4e78cf SM |
1178 | for (int i = 0; i < n; i++) |
1179 | printchar (str[i], do_fputc, stream, quoter); | |
43e526b9 | 1180 | } |
c906108c | 1181 | \f |
c5aa993b | 1182 | |
c906108c SS |
1183 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1184 | static unsigned int lines_per_page; | |
920d2a44 AC |
1185 | static void |
1186 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1187 | struct cmd_list_element *c, const char *value) | |
1188 | { | |
3e43a32a MS |
1189 | fprintf_filtered (file, |
1190 | _("Number of lines gdb thinks are in a page is %s.\n"), | |
920d2a44 AC |
1191 | value); |
1192 | } | |
eb0d3137 | 1193 | |
cbfbd72a | 1194 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1195 | static unsigned int chars_per_line; |
920d2a44 AC |
1196 | static void |
1197 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1198 | struct cmd_list_element *c, const char *value) | |
1199 | { | |
3e43a32a MS |
1200 | fprintf_filtered (file, |
1201 | _("Number of characters gdb thinks " | |
1202 | "are in a line is %s.\n"), | |
920d2a44 AC |
1203 | value); |
1204 | } | |
eb0d3137 | 1205 | |
c906108c SS |
1206 | /* Current count of lines printed on this page, chars on this line. */ |
1207 | static unsigned int lines_printed, chars_printed; | |
1208 | ||
eb6af809 TT |
1209 | /* True if pagination is disabled for just one command. */ |
1210 | ||
1211 | static bool pagination_disabled_for_command; | |
1212 | ||
c906108c SS |
1213 | /* Buffer and start column of buffered text, for doing smarter word- |
1214 | wrapping. When someone calls wrap_here(), we start buffering output | |
1215 | that comes through fputs_filtered(). If we see a newline, we just | |
1216 | spit it out and forget about the wrap_here(). If we see another | |
1217 | wrap_here(), we spit it out and remember the newer one. If we see | |
1218 | the end of the line, we spit out a newline, the indent, and then | |
1219 | the buffered output. */ | |
1220 | ||
c5603d50 | 1221 | static bool filter_initialized = false; |
c906108c | 1222 | |
c5603d50 TT |
1223 | /* Contains characters which are waiting to be output (they have |
1224 | already been counted in chars_printed). */ | |
1225 | static std::string wrap_buffer; | |
c906108c SS |
1226 | |
1227 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1228 | is non-zero. */ | |
d2c0eef4 | 1229 | static const char *wrap_indent; |
c906108c SS |
1230 | |
1231 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1232 | is not in effect. */ | |
1233 | static int wrap_column; | |
a0087920 TT |
1234 | |
1235 | /* The style applied at the time that wrap_here was called. */ | |
1236 | static ui_file_style wrap_style; | |
c906108c | 1237 | \f |
c5aa993b | 1238 | |
26c4b26f | 1239 | /* Initialize the number of lines per page and chars per line. */ |
eb0d3137 | 1240 | |
c906108c | 1241 | void |
fba45db2 | 1242 | init_page_info (void) |
c906108c | 1243 | { |
5da1313b JK |
1244 | if (batch_flag) |
1245 | { | |
1246 | lines_per_page = UINT_MAX; | |
1247 | chars_per_line = UINT_MAX; | |
1248 | } | |
1249 | else | |
c906108c | 1250 | #if defined(TUI) |
5ecb1806 | 1251 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1252 | #endif |
1253 | { | |
eb0d3137 | 1254 | int rows, cols; |
c906108c | 1255 | |
ec145965 EZ |
1256 | #if defined(__GO32__) |
1257 | rows = ScreenRows (); | |
1258 | cols = ScreenCols (); | |
1259 | lines_per_page = rows; | |
1260 | chars_per_line = cols; | |
1261 | #else | |
eb0d3137 MK |
1262 | /* Make sure Readline has initialized its terminal settings. */ |
1263 | rl_reset_terminal (NULL); | |
c906108c | 1264 | |
eb0d3137 MK |
1265 | /* Get the screen size from Readline. */ |
1266 | rl_get_screen_size (&rows, &cols); | |
1267 | lines_per_page = rows; | |
1268 | chars_per_line = cols; | |
c906108c | 1269 | |
1a66331e PM |
1270 | /* Readline should have fetched the termcap entry for us. |
1271 | Only try to use tgetnum function if rl_get_screen_size | |
1272 | did not return a useful value. */ | |
a121b7c1 | 1273 | if (((rows <= 0) && (tgetnum ((char *) "li") < 0)) |
e681cf3f EZ |
1274 | /* Also disable paging if inside Emacs. $EMACS was used |
1275 | before Emacs v25.1, $INSIDE_EMACS is used since then. */ | |
1276 | || getenv ("EMACS") || getenv ("INSIDE_EMACS")) | |
eb0d3137 | 1277 | { |
1a66331e | 1278 | /* The number of lines per page is not mentioned in the terminal |
30baf67b | 1279 | description or EMACS environment variable is set. This probably |
1a66331e | 1280 | means that paging is not useful, so disable paging. */ |
eb0d3137 MK |
1281 | lines_per_page = UINT_MAX; |
1282 | } | |
c906108c | 1283 | |
c906108c | 1284 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1285 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1286 | lines_per_page = UINT_MAX; |
eb0d3137 | 1287 | #endif |
ec145965 | 1288 | } |
eb0d3137 | 1289 | |
24b73f8e PP |
1290 | /* We handle SIGWINCH ourselves. */ |
1291 | rl_catch_sigwinch = 0; | |
1292 | ||
eb0d3137 | 1293 | set_screen_size (); |
c5aa993b | 1294 | set_width (); |
c906108c SS |
1295 | } |
1296 | ||
2437fd32 GB |
1297 | /* Return nonzero if filtered printing is initialized. */ |
1298 | int | |
1299 | filtered_printing_initialized (void) | |
1300 | { | |
c5603d50 | 1301 | return filter_initialized; |
2437fd32 GB |
1302 | } |
1303 | ||
b95de2b7 TT |
1304 | set_batch_flag_and_restore_page_info::set_batch_flag_and_restore_page_info () |
1305 | : m_save_lines_per_page (lines_per_page), | |
1306 | m_save_chars_per_line (chars_per_line), | |
1307 | m_save_batch_flag (batch_flag) | |
5da1313b | 1308 | { |
b95de2b7 TT |
1309 | batch_flag = 1; |
1310 | init_page_info (); | |
5da1313b JK |
1311 | } |
1312 | ||
b95de2b7 | 1313 | set_batch_flag_and_restore_page_info::~set_batch_flag_and_restore_page_info () |
5da1313b | 1314 | { |
b95de2b7 TT |
1315 | batch_flag = m_save_batch_flag; |
1316 | chars_per_line = m_save_chars_per_line; | |
1317 | lines_per_page = m_save_lines_per_page; | |
5da1313b | 1318 | |
b95de2b7 TT |
1319 | set_screen_size (); |
1320 | set_width (); | |
5da1313b JK |
1321 | } |
1322 | ||
eb0d3137 MK |
1323 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1324 | ||
1325 | static void | |
1326 | set_screen_size (void) | |
1327 | { | |
1328 | int rows = lines_per_page; | |
1329 | int cols = chars_per_line; | |
1330 | ||
23031e31 SJ |
1331 | /* If we get 0 or negative ROWS or COLS, treat as "infinite" size. |
1332 | A negative number can be seen here with the "set width/height" | |
1333 | commands and either: | |
eb0d3137 | 1334 | |
23031e31 | 1335 | - the user specified "unlimited", which maps to UINT_MAX, or |
85102364 | 1336 | - the user specified some number between INT_MAX and UINT_MAX. |
23031e31 SJ |
1337 | |
1338 | Cap "infinity" to approximately sqrt(INT_MAX) so that we don't | |
1339 | overflow in rl_set_screen_size, which multiplies rows and columns | |
1340 | to compute the number of characters on the screen. */ | |
1341 | ||
1342 | const int sqrt_int_max = INT_MAX >> (sizeof (int) * 8 / 2); | |
1343 | ||
1344 | if (rows <= 0 || rows > sqrt_int_max) | |
8ed25214 PA |
1345 | { |
1346 | rows = sqrt_int_max; | |
1347 | lines_per_page = UINT_MAX; | |
1348 | } | |
23031e31 SJ |
1349 | |
1350 | if (cols <= 0 || cols > sqrt_int_max) | |
8ed25214 PA |
1351 | { |
1352 | cols = sqrt_int_max; | |
1353 | chars_per_line = UINT_MAX; | |
1354 | } | |
eb0d3137 MK |
1355 | |
1356 | /* Update Readline's idea of the terminal size. */ | |
1357 | rl_set_screen_size (rows, cols); | |
1358 | } | |
1359 | ||
c5603d50 | 1360 | /* Reinitialize WRAP_BUFFER. */ |
eb0d3137 | 1361 | |
c906108c | 1362 | static void |
fba45db2 | 1363 | set_width (void) |
c906108c SS |
1364 | { |
1365 | if (chars_per_line == 0) | |
c5aa993b | 1366 | init_page_info (); |
c906108c | 1367 | |
c5603d50 TT |
1368 | wrap_buffer.clear (); |
1369 | filter_initialized = true; | |
c906108c SS |
1370 | } |
1371 | ||
c5aa993b | 1372 | static void |
eb4c3f4a | 1373 | set_width_command (const char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1374 | { |
eb0d3137 | 1375 | set_screen_size (); |
c906108c SS |
1376 | set_width (); |
1377 | } | |
1378 | ||
eb0d3137 | 1379 | static void |
eb4c3f4a | 1380 | set_height_command (const char *args, int from_tty, struct cmd_list_element *c) |
eb0d3137 MK |
1381 | { |
1382 | set_screen_size (); | |
1383 | } | |
1384 | ||
d6e5e7f7 PP |
1385 | /* See utils.h. */ |
1386 | ||
1387 | void | |
1388 | set_screen_width_and_height (int width, int height) | |
1389 | { | |
1390 | lines_per_page = height; | |
1391 | chars_per_line = width; | |
1392 | ||
1393 | set_screen_size (); | |
1394 | set_width (); | |
1395 | } | |
1396 | ||
cbe56571 TT |
1397 | /* The currently applied style. */ |
1398 | ||
1399 | static ui_file_style applied_style; | |
1400 | ||
a0087920 TT |
1401 | /* Emit an ANSI style escape for STYLE. If STREAM is nullptr, emit to |
1402 | the wrap buffer; otherwise emit to STREAM. */ | |
cbe56571 TT |
1403 | |
1404 | static void | |
a0087920 TT |
1405 | emit_style_escape (const ui_file_style &style, |
1406 | struct ui_file *stream = nullptr) | |
cbe56571 | 1407 | { |
cbe56571 TT |
1408 | applied_style = style; |
1409 | ||
a0087920 TT |
1410 | if (stream == nullptr) |
1411 | wrap_buffer.append (style.to_ansi ()); | |
1412 | else | |
1413 | fputs_unfiltered (style.to_ansi ().c_str (), stream); | |
cbe56571 TT |
1414 | } |
1415 | ||
ef1dfa36 TT |
1416 | /* Set the current output style. This will affect future uses of the |
1417 | _filtered output functions. */ | |
1418 | ||
1419 | static void | |
1420 | set_output_style (struct ui_file *stream, const ui_file_style &style) | |
1421 | { | |
8a522c6c | 1422 | if (!stream->can_emit_style_escape ()) |
cbe56571 TT |
1423 | return; |
1424 | ||
046bebe1 | 1425 | /* Note that we may not pass STREAM here, when we want to emit to |
a0087920 | 1426 | the wrap buffer, not directly to STREAM. */ |
046bebe1 TT |
1427 | if (stream == gdb_stdout) |
1428 | stream = nullptr; | |
1429 | emit_style_escape (style, stream); | |
cbe56571 TT |
1430 | } |
1431 | ||
ef1dfa36 TT |
1432 | /* See utils.h. */ |
1433 | ||
1434 | void | |
1435 | reset_terminal_style (struct ui_file *stream) | |
1436 | { | |
8a522c6c | 1437 | if (stream->can_emit_style_escape ()) |
ef1dfa36 TT |
1438 | { |
1439 | /* Force the setting, regardless of what we think the setting | |
1440 | might already be. */ | |
a0087920 TT |
1441 | applied_style = ui_file_style (); |
1442 | wrap_buffer.append (applied_style.to_ansi ()); | |
ef1dfa36 TT |
1443 | } |
1444 | } | |
1445 | ||
c906108c | 1446 | /* Wait, so the user can read what's on the screen. Prompt the user |
720d2e96 PA |
1447 | to continue by pressing RETURN. 'q' is also provided because |
1448 | telling users what to do in the prompt is more user-friendly than | |
1449 | expecting them to think of Ctrl-C/SIGINT. */ | |
c906108c SS |
1450 | |
1451 | static void | |
fba45db2 | 1452 | prompt_for_continue (void) |
c906108c | 1453 | { |
c906108c | 1454 | char cont_prompt[120]; |
260c0b2a DE |
1455 | /* Used to add duration we waited for user to respond to |
1456 | prompt_for_continue_wait_time. */ | |
dcb07cfa PA |
1457 | using namespace std::chrono; |
1458 | steady_clock::time_point prompt_started = steady_clock::now (); | |
eb6af809 | 1459 | bool disable_pagination = pagination_disabled_for_command; |
c906108c | 1460 | |
cbe56571 | 1461 | /* Clear the current styling. */ |
8a522c6c | 1462 | if (gdb_stdout->can_emit_style_escape ()) |
a0087920 | 1463 | emit_style_escape (ui_file_style (), gdb_stdout); |
cbe56571 | 1464 | |
c906108c | 1465 | if (annotation_level > 1) |
a3f17187 | 1466 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
1467 | |
1468 | strcpy (cont_prompt, | |
eb6af809 TT |
1469 | "--Type <RET> for more, q to quit, " |
1470 | "c to continue without paging--"); | |
c906108c SS |
1471 | if (annotation_level > 1) |
1472 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1473 | ||
720d2e96 PA |
1474 | /* We must do this *before* we call gdb_readline_wrapper, else it |
1475 | will eventually call us -- thinking that we're trying to print | |
1476 | beyond the end of the screen. */ | |
c906108c SS |
1477 | reinitialize_more_filter (); |
1478 | ||
223ffa71 | 1479 | scoped_input_handler prepare_input; |
82584158 | 1480 | |
720d2e96 PA |
1481 | /* Call gdb_readline_wrapper, not readline, in order to keep an |
1482 | event loop running. */ | |
5aa89276 | 1483 | gdb::unique_xmalloc_ptr<char> ignore (gdb_readline_wrapper (cont_prompt)); |
c906108c | 1484 | |
260c0b2a | 1485 | /* Add time spend in this routine to prompt_for_continue_wait_time. */ |
dcb07cfa | 1486 | prompt_for_continue_wait_time += steady_clock::now () - prompt_started; |
260c0b2a | 1487 | |
c906108c | 1488 | if (annotation_level > 1) |
a3f17187 | 1489 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c | 1490 | |
80dbc9fd | 1491 | if (ignore != NULL) |
c906108c | 1492 | { |
5aa89276 | 1493 | char *p = ignore.get (); |
5d502164 | 1494 | |
c906108c SS |
1495 | while (*p == ' ' || *p == '\t') |
1496 | ++p; | |
1497 | if (p[0] == 'q') | |
1690b616 SL |
1498 | /* Do not call quit here; there is no possibility of SIGINT. */ |
1499 | throw_quit ("Quit"); | |
eb6af809 TT |
1500 | if (p[0] == 'c') |
1501 | disable_pagination = true; | |
c906108c | 1502 | } |
c906108c SS |
1503 | |
1504 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1505 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1506 | reinitialize_more_filter (); | |
eb6af809 | 1507 | pagination_disabled_for_command = disable_pagination; |
c906108c | 1508 | |
581e13c1 | 1509 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ |
c906108c SS |
1510 | } |
1511 | ||
26c4b26f | 1512 | /* Initialize timer to keep track of how long we waited for the user. */ |
bd712aed DE |
1513 | |
1514 | void | |
1515 | reset_prompt_for_continue_wait_time (void) | |
1516 | { | |
dcb07cfa | 1517 | using namespace std::chrono; |
bd712aed | 1518 | |
dcb07cfa | 1519 | prompt_for_continue_wait_time = steady_clock::duration::zero (); |
bd712aed DE |
1520 | } |
1521 | ||
1522 | /* Fetch the cumulative time spent in prompt_for_continue. */ | |
1523 | ||
dcb07cfa PA |
1524 | std::chrono::steady_clock::duration |
1525 | get_prompt_for_continue_wait_time () | |
bd712aed DE |
1526 | { |
1527 | return prompt_for_continue_wait_time; | |
1528 | } | |
1529 | ||
c906108c SS |
1530 | /* Reinitialize filter; ie. tell it to reset to original values. */ |
1531 | ||
1532 | void | |
fba45db2 | 1533 | reinitialize_more_filter (void) |
c906108c SS |
1534 | { |
1535 | lines_printed = 0; | |
1536 | chars_printed = 0; | |
eb6af809 | 1537 | pagination_disabled_for_command = false; |
c906108c SS |
1538 | } |
1539 | ||
c5603d50 TT |
1540 | /* Flush the wrap buffer to STREAM, if necessary. */ |
1541 | ||
1542 | static void | |
1543 | flush_wrap_buffer (struct ui_file *stream) | |
1544 | { | |
a0087920 | 1545 | if (stream == gdb_stdout && !wrap_buffer.empty ()) |
c5603d50 TT |
1546 | { |
1547 | fputs_unfiltered (wrap_buffer.c_str (), stream); | |
1548 | wrap_buffer.clear (); | |
1549 | } | |
1550 | } | |
1551 | ||
c906108c | 1552 | /* Indicate that if the next sequence of characters overflows the line, |
581e13c1 | 1553 | a newline should be inserted here rather than when it hits the end. |
c906108c SS |
1554 | If INDENT is non-null, it is a string to be printed to indent the |
1555 | wrapped part on the next line. INDENT must remain accessible until | |
1556 | the next call to wrap_here() or until a newline is printed through | |
1557 | fputs_filtered(). | |
1558 | ||
1559 | If the line is already overfull, we immediately print a newline and | |
1560 | the indentation, and disable further wrapping. | |
1561 | ||
1562 | If we don't know the width of lines, but we know the page height, | |
1563 | we must not wrap words, but should still keep track of newlines | |
1564 | that were explicitly printed. | |
1565 | ||
1566 | INDENT should not contain tabs, as that will mess up the char count | |
1567 | on the next line. FIXME. | |
1568 | ||
1569 | This routine is guaranteed to force out any output which has been | |
1570 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1571 | used to force out output from the wrap_buffer. */ | |
1572 | ||
1573 | void | |
d2c0eef4 | 1574 | wrap_here (const char *indent) |
c906108c | 1575 | { |
581e13c1 | 1576 | /* This should have been allocated, but be paranoid anyway. */ |
c5603d50 | 1577 | if (!filter_initialized) |
3e43a32a MS |
1578 | internal_error (__FILE__, __LINE__, |
1579 | _("failed internal consistency check")); | |
c906108c | 1580 | |
c5603d50 | 1581 | flush_wrap_buffer (gdb_stdout); |
3e43a32a | 1582 | if (chars_per_line == UINT_MAX) /* No line overflow checking. */ |
c906108c SS |
1583 | { |
1584 | wrap_column = 0; | |
1585 | } | |
1586 | else if (chars_printed >= chars_per_line) | |
1587 | { | |
1588 | puts_filtered ("\n"); | |
1589 | if (indent != NULL) | |
1590 | puts_filtered (indent); | |
1591 | wrap_column = 0; | |
1592 | } | |
1593 | else | |
1594 | { | |
1595 | wrap_column = chars_printed; | |
1596 | if (indent == NULL) | |
1597 | wrap_indent = ""; | |
1598 | else | |
1599 | wrap_indent = indent; | |
a0087920 | 1600 | wrap_style = applied_style; |
c906108c SS |
1601 | } |
1602 | } | |
1603 | ||
4a351cef | 1604 | /* Print input string to gdb_stdout, filtered, with wrap, |
581e13c1 | 1605 | arranging strings in columns of n chars. String can be |
4a351cef AF |
1606 | right or left justified in the column. Never prints |
1607 | trailing spaces. String should never be longer than | |
1608 | width. FIXME: this could be useful for the EXAMINE | |
581e13c1 | 1609 | command, which currently doesn't tabulate very well. */ |
4a351cef AF |
1610 | |
1611 | void | |
1612 | puts_filtered_tabular (char *string, int width, int right) | |
1613 | { | |
1614 | int spaces = 0; | |
1615 | int stringlen; | |
1616 | char *spacebuf; | |
1617 | ||
1618 | gdb_assert (chars_per_line > 0); | |
1619 | if (chars_per_line == UINT_MAX) | |
1620 | { | |
1621 | fputs_filtered (string, gdb_stdout); | |
1622 | fputs_filtered ("\n", gdb_stdout); | |
1623 | return; | |
1624 | } | |
1625 | ||
1626 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
1627 | fputs_filtered ("\n", gdb_stdout); | |
1628 | ||
1629 | if (width >= chars_per_line) | |
1630 | width = chars_per_line - 1; | |
1631 | ||
1632 | stringlen = strlen (string); | |
1633 | ||
1634 | if (chars_printed > 0) | |
1635 | spaces = width - (chars_printed - 1) % width - 1; | |
1636 | if (right) | |
1637 | spaces += width - stringlen; | |
1638 | ||
224c3ddb | 1639 | spacebuf = (char *) alloca (spaces + 1); |
4a351cef AF |
1640 | spacebuf[spaces] = '\0'; |
1641 | while (spaces--) | |
1642 | spacebuf[spaces] = ' '; | |
1643 | ||
1644 | fputs_filtered (spacebuf, gdb_stdout); | |
1645 | fputs_filtered (string, gdb_stdout); | |
1646 | } | |
1647 | ||
1648 | ||
c906108c | 1649 | /* Ensure that whatever gets printed next, using the filtered output |
581e13c1 | 1650 | commands, starts at the beginning of the line. I.e. if there is |
c906108c | 1651 | any pending output for the current line, flush it and start a new |
581e13c1 | 1652 | line. Otherwise do nothing. */ |
c906108c SS |
1653 | |
1654 | void | |
fba45db2 | 1655 | begin_line (void) |
c906108c SS |
1656 | { |
1657 | if (chars_printed > 0) | |
1658 | { | |
1659 | puts_filtered ("\n"); | |
1660 | } | |
1661 | } | |
1662 | ||
ac9a91a7 | 1663 | |
c906108c SS |
1664 | /* Like fputs but if FILTER is true, pause after every screenful. |
1665 | ||
1666 | Regardless of FILTER can wrap at points other than the final | |
1667 | character of a line. | |
1668 | ||
1669 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
1670 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
1671 | anything. | |
1672 | ||
1673 | Note that a longjmp to top level may occur in this routine (only if | |
1674 | FILTER is true) (since prompt_for_continue may do so) so this | |
1675 | routine should not be called when cleanups are not in place. */ | |
1676 | ||
1677 | static void | |
fba45db2 KB |
1678 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
1679 | int filter) | |
c906108c SS |
1680 | { |
1681 | const char *lineptr; | |
1682 | ||
1683 | if (linebuffer == 0) | |
1684 | return; | |
1685 | ||
1686 | /* Don't do any filtering if it is disabled. */ | |
390a8aca | 1687 | if (stream != gdb_stdout |
b2e7f004 | 1688 | || !pagination_enabled |
eb6af809 | 1689 | || pagination_disabled_for_command |
b2e7f004 | 1690 | || batch_flag |
390a8aca | 1691 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX) |
58dadb1b | 1692 | || top_level_interpreter () == NULL |
29f94340 | 1693 | || top_level_interpreter ()->interp_ui_out ()->is_mi_like_p ()) |
c906108c | 1694 | { |
c5603d50 | 1695 | flush_wrap_buffer (stream); |
c906108c SS |
1696 | fputs_unfiltered (linebuffer, stream); |
1697 | return; | |
1698 | } | |
1699 | ||
a0087920 TT |
1700 | auto buffer_clearer |
1701 | = make_scope_exit ([&] () | |
1702 | { | |
1703 | wrap_buffer.clear (); | |
1704 | wrap_column = 0; | |
1705 | wrap_indent = ""; | |
1706 | }); | |
1707 | ||
c906108c SS |
1708 | /* Go through and output each character. Show line extension |
1709 | when this is necessary; prompt user for new page when this is | |
1710 | necessary. */ | |
c5aa993b | 1711 | |
c906108c SS |
1712 | lineptr = linebuffer; |
1713 | while (*lineptr) | |
1714 | { | |
eb6af809 TT |
1715 | /* Possible new page. Note that PAGINATION_DISABLED_FOR_COMMAND |
1716 | might be set during this loop, so we must continue to check | |
1717 | it here. */ | |
1718 | if (filter && (lines_printed >= lines_per_page - 1) | |
1719 | && !pagination_disabled_for_command) | |
c906108c SS |
1720 | prompt_for_continue (); |
1721 | ||
1722 | while (*lineptr && *lineptr != '\n') | |
1723 | { | |
a0087920 TT |
1724 | int skip_bytes; |
1725 | ||
c906108c SS |
1726 | /* Print a single line. */ |
1727 | if (*lineptr == '\t') | |
1728 | { | |
c5603d50 | 1729 | wrap_buffer.push_back ('\t'); |
c906108c SS |
1730 | /* Shifting right by 3 produces the number of tab stops |
1731 | we have already passed, and then adding one and | |
c5aa993b | 1732 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
1733 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
1734 | lineptr++; | |
1735 | } | |
a0087920 TT |
1736 | else if (*lineptr == '\033' |
1737 | && skip_ansi_escape (lineptr, &skip_bytes)) | |
1738 | { | |
1739 | wrap_buffer.append (lineptr, skip_bytes); | |
1740 | /* Note that we don't consider this a character, so we | |
1741 | don't increment chars_printed here. */ | |
1742 | lineptr += skip_bytes; | |
1743 | } | |
c906108c SS |
1744 | else |
1745 | { | |
c5603d50 | 1746 | wrap_buffer.push_back (*lineptr); |
c906108c SS |
1747 | chars_printed++; |
1748 | lineptr++; | |
1749 | } | |
c5aa993b | 1750 | |
c906108c SS |
1751 | if (chars_printed >= chars_per_line) |
1752 | { | |
1753 | unsigned int save_chars = chars_printed; | |
1754 | ||
99f20f08 TT |
1755 | /* If we change the style, below, we'll want to reset it |
1756 | before continuing to print. If there is no wrap | |
1757 | column, then we'll only reset the style if the pager | |
1758 | prompt is given; and to avoid emitting style | |
1759 | sequences in the middle of a run of text, we track | |
1760 | this as well. */ | |
1761 | ui_file_style save_style; | |
1762 | bool did_paginate = false; | |
1763 | ||
c906108c SS |
1764 | chars_printed = 0; |
1765 | lines_printed++; | |
c906108c | 1766 | if (wrap_column) |
cbe56571 | 1767 | { |
99f20f08 | 1768 | save_style = wrap_style; |
8a522c6c | 1769 | if (stream->can_emit_style_escape ()) |
a0087920 TT |
1770 | emit_style_escape (ui_file_style (), stream); |
1771 | /* If we aren't actually wrapping, don't output | |
1772 | newline -- if chars_per_line is right, we | |
1773 | probably just overflowed anyway; if it's wrong, | |
1774 | let us keep going. */ | |
cbe56571 TT |
1775 | fputc_unfiltered ('\n', stream); |
1776 | } | |
a0087920 | 1777 | else |
99f20f08 TT |
1778 | { |
1779 | save_style = applied_style; | |
1780 | flush_wrap_buffer (stream); | |
1781 | } | |
c906108c | 1782 | |
eb6af809 TT |
1783 | /* Possible new page. Note that |
1784 | PAGINATION_DISABLED_FOR_COMMAND might be set during | |
1785 | this loop, so we must continue to check it here. */ | |
1786 | if (lines_printed >= lines_per_page - 1 | |
1787 | && !pagination_disabled_for_command) | |
99f20f08 TT |
1788 | { |
1789 | prompt_for_continue (); | |
1790 | did_paginate = true; | |
1791 | } | |
c906108c | 1792 | |
581e13c1 | 1793 | /* Now output indentation and wrapped string. */ |
c906108c SS |
1794 | if (wrap_column) |
1795 | { | |
1796 | fputs_unfiltered (wrap_indent, stream); | |
8a522c6c | 1797 | if (stream->can_emit_style_escape ()) |
99f20f08 | 1798 | emit_style_escape (save_style, stream); |
c906108c SS |
1799 | /* FIXME, this strlen is what prevents wrap_indent from |
1800 | containing tabs. However, if we recurse to print it | |
1801 | and count its chars, we risk trouble if wrap_indent is | |
581e13c1 | 1802 | longer than (the user settable) chars_per_line. |
c906108c SS |
1803 | Note also that this can set chars_printed > chars_per_line |
1804 | if we are printing a long string. */ | |
1805 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 1806 | + (save_chars - wrap_column); |
c5aa993b JM |
1807 | wrap_column = 0; /* And disable fancy wrap */ |
1808 | } | |
ca1df239 | 1809 | else if (did_paginate && stream->can_emit_style_escape ()) |
99f20f08 | 1810 | emit_style_escape (save_style, stream); |
c906108c SS |
1811 | } |
1812 | } | |
1813 | ||
1814 | if (*lineptr == '\n') | |
1815 | { | |
1816 | chars_printed = 0; | |
3e43a32a MS |
1817 | wrap_here ((char *) 0); /* Spit out chars, cancel |
1818 | further wraps. */ | |
c906108c SS |
1819 | lines_printed++; |
1820 | fputc_unfiltered ('\n', stream); | |
1821 | lineptr++; | |
1822 | } | |
1823 | } | |
a0087920 TT |
1824 | |
1825 | buffer_clearer.release (); | |
c906108c SS |
1826 | } |
1827 | ||
1828 | void | |
fba45db2 | 1829 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
1830 | { |
1831 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1832 | } | |
1833 | ||
cbe56571 TT |
1834 | /* See utils.h. */ |
1835 | ||
1836 | void | |
1837 | fputs_styled (const char *linebuffer, const ui_file_style &style, | |
1838 | struct ui_file *stream) | |
1839 | { | |
a0087920 TT |
1840 | /* This just makes it so we emit somewhat fewer escape |
1841 | sequences. */ | |
1842 | if (style.is_default ()) | |
1843 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1844 | else | |
1845 | { | |
1846 | set_output_style (stream, style); | |
1847 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1848 | set_output_style (stream, ui_file_style ()); | |
1849 | } | |
cbe56571 TT |
1850 | } |
1851 | ||
9303eb2f PW |
1852 | /* See utils.h. */ |
1853 | ||
2a3c1174 PA |
1854 | void |
1855 | fputs_styled_unfiltered (const char *linebuffer, const ui_file_style &style, | |
1856 | struct ui_file *stream) | |
1857 | { | |
1858 | /* This just makes it so we emit somewhat fewer escape | |
1859 | sequences. */ | |
1860 | if (style.is_default ()) | |
1861 | fputs_maybe_filtered (linebuffer, stream, 0); | |
1862 | else | |
1863 | { | |
1864 | set_output_style (stream, style); | |
1865 | fputs_maybe_filtered (linebuffer, stream, 0); | |
1866 | set_output_style (stream, ui_file_style ()); | |
1867 | } | |
1868 | } | |
1869 | ||
1870 | /* See utils.h. */ | |
1871 | ||
9303eb2f PW |
1872 | void |
1873 | fputs_highlighted (const char *str, const compiled_regex &highlight, | |
1874 | struct ui_file *stream) | |
1875 | { | |
1876 | regmatch_t pmatch; | |
1877 | ||
1878 | while (*str && highlight.exec (str, 1, &pmatch, 0) == 0) | |
1879 | { | |
1880 | size_t n_highlight = pmatch.rm_eo - pmatch.rm_so; | |
1881 | ||
1882 | /* Output the part before pmatch with current style. */ | |
1883 | while (pmatch.rm_so > 0) | |
1884 | { | |
1885 | fputc_filtered (*str, stream); | |
1886 | pmatch.rm_so--; | |
1887 | str++; | |
1888 | } | |
1889 | ||
1890 | /* Output pmatch with the highlight style. */ | |
1891 | set_output_style (stream, highlight_style.style ()); | |
1892 | while (n_highlight > 0) | |
1893 | { | |
1894 | fputc_filtered (*str, stream); | |
1895 | n_highlight--; | |
1896 | str++; | |
1897 | } | |
1898 | set_output_style (stream, ui_file_style ()); | |
1899 | } | |
1900 | ||
1901 | /* Output the trailing part of STR not matching HIGHLIGHT. */ | |
1902 | if (*str) | |
1903 | fputs_filtered (str, stream); | |
1904 | } | |
1905 | ||
c906108c | 1906 | int |
fba45db2 | 1907 | putchar_unfiltered (int c) |
c906108c | 1908 | { |
11cf8741 | 1909 | char buf = c; |
e0627e85 | 1910 | |
d9fcf2fb | 1911 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
1912 | return c; |
1913 | } | |
1914 | ||
d1f4cff8 AC |
1915 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
1916 | May return nonlocally. */ | |
1917 | ||
1918 | int | |
1919 | putchar_filtered (int c) | |
1920 | { | |
1921 | return fputc_filtered (c, gdb_stdout); | |
1922 | } | |
1923 | ||
c906108c | 1924 | int |
fba45db2 | 1925 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 1926 | { |
11cf8741 | 1927 | char buf = c; |
e0627e85 | 1928 | |
d9fcf2fb | 1929 | ui_file_write (stream, &buf, 1); |
c906108c SS |
1930 | return c; |
1931 | } | |
1932 | ||
1933 | int | |
fba45db2 | 1934 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
1935 | { |
1936 | char buf[2]; | |
1937 | ||
1938 | buf[0] = c; | |
1939 | buf[1] = 0; | |
1940 | fputs_filtered (buf, stream); | |
1941 | return c; | |
1942 | } | |
1943 | ||
1944 | /* puts_debug is like fputs_unfiltered, except it prints special | |
1945 | characters in printable fashion. */ | |
1946 | ||
1947 | void | |
fba45db2 | 1948 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
1949 | { |
1950 | int ch; | |
1951 | ||
1952 | /* Print prefix and suffix after each line. */ | |
1953 | static int new_line = 1; | |
1954 | static int return_p = 0; | |
a121b7c1 PA |
1955 | static const char *prev_prefix = ""; |
1956 | static const char *prev_suffix = ""; | |
c906108c SS |
1957 | |
1958 | if (*string == '\n') | |
1959 | return_p = 0; | |
1960 | ||
1961 | /* If the prefix is changing, print the previous suffix, a new line, | |
1962 | and the new prefix. */ | |
c5aa993b | 1963 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 1964 | { |
9846de1b JM |
1965 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
1966 | fputs_unfiltered ("\n", gdb_stdlog); | |
1967 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
1968 | } |
1969 | ||
1970 | /* Print prefix if we printed a newline during the previous call. */ | |
1971 | if (new_line) | |
1972 | { | |
1973 | new_line = 0; | |
9846de1b | 1974 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
1975 | } |
1976 | ||
1977 | prev_prefix = prefix; | |
1978 | prev_suffix = suffix; | |
1979 | ||
1980 | /* Output characters in a printable format. */ | |
1981 | while ((ch = *string++) != '\0') | |
1982 | { | |
1983 | switch (ch) | |
c5aa993b | 1984 | { |
c906108c SS |
1985 | default: |
1986 | if (isprint (ch)) | |
9846de1b | 1987 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
1988 | |
1989 | else | |
9846de1b | 1990 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
1991 | break; |
1992 | ||
c5aa993b JM |
1993 | case '\\': |
1994 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
1995 | break; | |
1996 | case '\b': | |
1997 | fputs_unfiltered ("\\b", gdb_stdlog); | |
1998 | break; | |
1999 | case '\f': | |
2000 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2001 | break; | |
2002 | case '\n': | |
2003 | new_line = 1; | |
2004 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2005 | break; | |
2006 | case '\r': | |
2007 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2008 | break; | |
2009 | case '\t': | |
2010 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2011 | break; | |
2012 | case '\v': | |
2013 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2014 | break; | |
2015 | } | |
c906108c SS |
2016 | |
2017 | return_p = ch == '\r'; | |
2018 | } | |
2019 | ||
2020 | /* Print suffix if we printed a newline. */ | |
2021 | if (new_line) | |
2022 | { | |
9846de1b JM |
2023 | fputs_unfiltered (suffix, gdb_stdlog); |
2024 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2025 | } |
2026 | } | |
2027 | ||
2028 | ||
2029 | /* Print a variable number of ARGS using format FORMAT. If this | |
2030 | information is going to put the amount written (since the last call | |
2031 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
85102364 | 2032 | call prompt_for_continue to get the users permission to continue. |
c906108c SS |
2033 | |
2034 | Unlike fprintf, this function does not return a value. | |
2035 | ||
2036 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2037 | fprintf (takes a stream to write on), and printf (the usual). | |
2038 | ||
2a3c1174 PA |
2039 | Note also that this may throw a quit (since prompt_for_continue may |
2040 | do so). */ | |
c906108c SS |
2041 | |
2042 | static void | |
fba45db2 | 2043 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2a3c1174 | 2044 | va_list args, bool filter, bool gdbfmt) |
c906108c | 2045 | { |
2a3c1174 PA |
2046 | if (gdbfmt) |
2047 | { | |
2048 | ui_out_flags flags = disallow_ui_out_field; | |
2049 | if (!filter) | |
2050 | flags |= unfiltered_output; | |
2051 | cli_ui_out (stream, flags).vmessage (applied_style, format, args); | |
2052 | } | |
2053 | else | |
2054 | { | |
2055 | std::string str = string_vprintf (format, args); | |
2056 | fputs_maybe_filtered (str.c_str (), stream, filter); | |
2057 | } | |
c906108c SS |
2058 | } |
2059 | ||
2060 | ||
2061 | void | |
fba45db2 | 2062 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c | 2063 | { |
2a3c1174 | 2064 | vfprintf_maybe_filtered (stream, format, args, true, true); |
c906108c SS |
2065 | } |
2066 | ||
2067 | void | |
fba45db2 | 2068 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c | 2069 | { |
75feb17d DJ |
2070 | if (debug_timestamp && stream == gdb_stdlog) |
2071 | { | |
dcb07cfa | 2072 | using namespace std::chrono; |
6e5abd65 | 2073 | int len, need_nl; |
75feb17d | 2074 | |
2a3c1174 PA |
2075 | string_file sfile; |
2076 | cli_ui_out (&sfile, 0).vmessage (ui_file_style (), format, args); | |
2077 | std::string linebuffer = std::move (sfile.string ()); | |
2078 | ||
dcb07cfa PA |
2079 | steady_clock::time_point now = steady_clock::now (); |
2080 | seconds s = duration_cast<seconds> (now.time_since_epoch ()); | |
2081 | microseconds us = duration_cast<microseconds> (now.time_since_epoch () - s); | |
6e5abd65 | 2082 | |
200aa7b1 | 2083 | len = linebuffer.size (); |
6e5abd65 PA |
2084 | need_nl = (len > 0 && linebuffer[len - 1] != '\n'); |
2085 | ||
dcb07cfa PA |
2086 | std::string timestamp = string_printf ("%ld.%06ld %s%s", |
2087 | (long) s.count (), | |
2088 | (long) us.count (), | |
200aa7b1 TT |
2089 | linebuffer.c_str (), |
2090 | need_nl ? "\n": ""); | |
dcb07cfa | 2091 | fputs_unfiltered (timestamp.c_str (), stream); |
75feb17d | 2092 | } |
6e5abd65 | 2093 | else |
2a3c1174 | 2094 | vfprintf_maybe_filtered (stream, format, args, false, true); |
c906108c SS |
2095 | } |
2096 | ||
2097 | void | |
fba45db2 | 2098 | vprintf_filtered (const char *format, va_list args) |
c906108c | 2099 | { |
2a3c1174 | 2100 | vfprintf_maybe_filtered (gdb_stdout, format, args, true, false); |
c906108c SS |
2101 | } |
2102 | ||
2103 | void | |
fba45db2 | 2104 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2105 | { |
2106 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2107 | } | |
2108 | ||
c906108c | 2109 | void |
8731e58e | 2110 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2111 | { |
2112 | va_list args; | |
e0627e85 | 2113 | |
c906108c | 2114 | va_start (args, format); |
c906108c SS |
2115 | vfprintf_filtered (stream, format, args); |
2116 | va_end (args); | |
2117 | } | |
2118 | ||
c906108c | 2119 | void |
8731e58e | 2120 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2121 | { |
2122 | va_list args; | |
e0627e85 | 2123 | |
c906108c | 2124 | va_start (args, format); |
c906108c SS |
2125 | vfprintf_unfiltered (stream, format, args); |
2126 | va_end (args); | |
2127 | } | |
2128 | ||
2129 | /* Like fprintf_filtered, but prints its result indented. | |
2130 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2131 | ||
c906108c | 2132 | void |
8731e58e AC |
2133 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2134 | ...) | |
c906108c SS |
2135 | { |
2136 | va_list args; | |
e0627e85 | 2137 | |
c906108c | 2138 | va_start (args, format); |
c906108c SS |
2139 | print_spaces_filtered (spaces, stream); |
2140 | ||
2141 | vfprintf_filtered (stream, format, args); | |
2142 | va_end (args); | |
2143 | } | |
2144 | ||
cbe56571 TT |
2145 | /* See utils.h. */ |
2146 | ||
2147 | void | |
2148 | fprintf_styled (struct ui_file *stream, const ui_file_style &style, | |
2149 | const char *format, ...) | |
2150 | { | |
2151 | va_list args; | |
2152 | ||
2153 | set_output_style (stream, style); | |
2154 | va_start (args, format); | |
2155 | vfprintf_filtered (stream, format, args); | |
2156 | va_end (args); | |
2157 | set_output_style (stream, ui_file_style ()); | |
2158 | } | |
2159 | ||
2a3c1174 PA |
2160 | /* See utils.h. */ |
2161 | ||
2162 | void | |
2163 | vfprintf_styled (struct ui_file *stream, const ui_file_style &style, | |
2164 | const char *format, va_list args) | |
2165 | { | |
2166 | set_output_style (stream, style); | |
2167 | vfprintf_filtered (stream, format, args); | |
2168 | set_output_style (stream, ui_file_style ()); | |
2169 | } | |
2170 | ||
2171 | /* See utils.h. */ | |
2172 | ||
2173 | void | |
2174 | vfprintf_styled_no_gdbfmt (struct ui_file *stream, const ui_file_style &style, | |
2175 | bool filter, const char *format, va_list args) | |
2176 | { | |
2177 | std::string str = string_vprintf (format, args); | |
2178 | if (!str.empty ()) | |
2179 | { | |
2180 | if (!style.is_default ()) | |
2181 | set_output_style (stream, style); | |
2182 | fputs_maybe_filtered (str.c_str (), stream, filter); | |
2183 | if (!style.is_default ()) | |
2184 | set_output_style (stream, ui_file_style ()); | |
2185 | } | |
2186 | } | |
c906108c | 2187 | |
c906108c | 2188 | void |
8731e58e | 2189 | printf_filtered (const char *format, ...) |
c906108c SS |
2190 | { |
2191 | va_list args; | |
e0627e85 | 2192 | |
c906108c | 2193 | va_start (args, format); |
c906108c SS |
2194 | vfprintf_filtered (gdb_stdout, format, args); |
2195 | va_end (args); | |
2196 | } | |
2197 | ||
2198 | ||
c906108c | 2199 | void |
8731e58e | 2200 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2201 | { |
2202 | va_list args; | |
e0627e85 | 2203 | |
c906108c | 2204 | va_start (args, format); |
c906108c SS |
2205 | vfprintf_unfiltered (gdb_stdout, format, args); |
2206 | va_end (args); | |
2207 | } | |
2208 | ||
2209 | /* Like printf_filtered, but prints it's result indented. | |
2210 | Called as printfi_filtered (spaces, format, ...); */ | |
2211 | ||
c906108c | 2212 | void |
8731e58e | 2213 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2214 | { |
2215 | va_list args; | |
e0627e85 | 2216 | |
c906108c | 2217 | va_start (args, format); |
c906108c SS |
2218 | print_spaces_filtered (spaces, gdb_stdout); |
2219 | vfprintf_filtered (gdb_stdout, format, args); | |
2220 | va_end (args); | |
2221 | } | |
2222 | ||
2223 | /* Easy -- but watch out! | |
2224 | ||
2225 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2226 | This one doesn't, and had better not! */ | |
2227 | ||
2228 | void | |
fba45db2 | 2229 | puts_filtered (const char *string) |
c906108c SS |
2230 | { |
2231 | fputs_filtered (string, gdb_stdout); | |
2232 | } | |
2233 | ||
2234 | void | |
fba45db2 | 2235 | puts_unfiltered (const char *string) |
c906108c SS |
2236 | { |
2237 | fputs_unfiltered (string, gdb_stdout); | |
2238 | } | |
2239 | ||
2240 | /* Return a pointer to N spaces and a null. The pointer is good | |
2241 | until the next call to here. */ | |
2242 | char * | |
fba45db2 | 2243 | n_spaces (int n) |
c906108c | 2244 | { |
392a587b JM |
2245 | char *t; |
2246 | static char *spaces = 0; | |
2247 | static int max_spaces = -1; | |
c906108c SS |
2248 | |
2249 | if (n > max_spaces) | |
2250 | { | |
2251 | if (spaces) | |
b8c9b27d | 2252 | xfree (spaces); |
c5aa993b JM |
2253 | spaces = (char *) xmalloc (n + 1); |
2254 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2255 | *--t = ' '; |
2256 | spaces[n] = '\0'; | |
2257 | max_spaces = n; | |
2258 | } | |
2259 | ||
2260 | return spaces + max_spaces - n; | |
2261 | } | |
2262 | ||
2263 | /* Print N spaces. */ | |
2264 | void | |
fba45db2 | 2265 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2266 | { |
2267 | fputs_filtered (n_spaces (n), stream); | |
2268 | } | |
2269 | \f | |
4a351cef | 2270 | /* C++/ObjC demangler stuff. */ |
c906108c | 2271 | |
389e51db AC |
2272 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2273 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2274 | If the name is not mangled, or the language for the name is unknown, or | |
581e13c1 | 2275 | demangling is off, the name is printed in its "raw" form. */ |
c906108c SS |
2276 | |
2277 | void | |
0d5cff50 | 2278 | fprintf_symbol_filtered (struct ui_file *stream, const char *name, |
8731e58e | 2279 | enum language lang, int arg_mode) |
c906108c SS |
2280 | { |
2281 | char *demangled; | |
2282 | ||
2283 | if (name != NULL) | |
2284 | { | |
2285 | /* If user wants to see raw output, no problem. */ | |
2286 | if (!demangle) | |
2287 | { | |
2288 | fputs_filtered (name, stream); | |
2289 | } | |
2290 | else | |
2291 | { | |
9a3d7dfd | 2292 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2293 | fputs_filtered (demangled ? demangled : name, stream); |
2294 | if (demangled != NULL) | |
2295 | { | |
b8c9b27d | 2296 | xfree (demangled); |
c906108c SS |
2297 | } |
2298 | } | |
2299 | } | |
2300 | } | |
2301 | ||
0662b6a7 PA |
2302 | /* True if CH is a character that can be part of a symbol name. I.e., |
2303 | either a number, a letter, or a '_'. */ | |
2304 | ||
2305 | static bool | |
2306 | valid_identifier_name_char (int ch) | |
2307 | { | |
2308 | return (isalnum (ch) || ch == '_'); | |
2309 | } | |
2310 | ||
2311 | /* Skip to end of token, or to END, whatever comes first. Input is | |
2312 | assumed to be a C++ operator name. */ | |
2313 | ||
2314 | static const char * | |
2315 | cp_skip_operator_token (const char *token, const char *end) | |
2316 | { | |
2317 | const char *p = token; | |
2318 | while (p != end && !isspace (*p) && *p != '(') | |
2319 | { | |
2320 | if (valid_identifier_name_char (*p)) | |
2321 | { | |
2322 | while (p != end && valid_identifier_name_char (*p)) | |
2323 | p++; | |
2324 | return p; | |
2325 | } | |
2326 | else | |
2327 | { | |
2328 | /* Note, ordered such that among ops that share a prefix, | |
2329 | longer comes first. This is so that the loop below can | |
2330 | bail on first match. */ | |
2331 | static const char *ops[] = | |
2332 | { | |
2333 | "[", | |
2334 | "]", | |
2335 | "~", | |
2336 | ",", | |
2337 | "-=", "--", "->", "-", | |
2338 | "+=", "++", "+", | |
2339 | "*=", "*", | |
2340 | "/=", "/", | |
2341 | "%=", "%", | |
2342 | "|=", "||", "|", | |
2343 | "&=", "&&", "&", | |
2344 | "^=", "^", | |
2345 | "!=", "!", | |
2346 | "<<=", "<=", "<<", "<", | |
2347 | ">>=", ">=", ">>", ">", | |
2348 | "==", "=", | |
2349 | }; | |
2350 | ||
2351 | for (const char *op : ops) | |
2352 | { | |
2353 | size_t oplen = strlen (op); | |
2354 | size_t lencmp = std::min<size_t> (oplen, end - p); | |
2355 | ||
2356 | if (strncmp (p, op, lencmp) == 0) | |
2357 | return p + lencmp; | |
2358 | } | |
2359 | /* Some unidentified character. Return it. */ | |
2360 | return p + 1; | |
2361 | } | |
2362 | } | |
2363 | ||
2364 | return p; | |
2365 | } | |
2366 | ||
2367 | /* Advance STRING1/STRING2 past whitespace. */ | |
2368 | ||
2369 | static void | |
2370 | skip_ws (const char *&string1, const char *&string2, const char *end_str2) | |
2371 | { | |
2372 | while (isspace (*string1)) | |
2373 | string1++; | |
2374 | while (string2 < end_str2 && isspace (*string2)) | |
2375 | string2++; | |
2376 | } | |
2377 | ||
2378 | /* True if STRING points at the start of a C++ operator name. START | |
2379 | is the start of the string that STRING points to, hence when | |
2380 | reading backwards, we must not read any character before START. */ | |
2381 | ||
2382 | static bool | |
2383 | cp_is_operator (const char *string, const char *start) | |
2384 | { | |
2385 | return ((string == start | |
2386 | || !valid_identifier_name_char (string[-1])) | |
2387 | && strncmp (string, CP_OPERATOR_STR, CP_OPERATOR_LEN) == 0 | |
2388 | && !valid_identifier_name_char (string[CP_OPERATOR_LEN])); | |
2389 | } | |
2390 | ||
bd69330d PA |
2391 | /* If *NAME points at an ABI tag, skip it and return true. Otherwise |
2392 | leave *NAME unmodified and return false. (see GCC's abi_tag | |
2393 | attribute), such names are demangled as e.g., | |
2394 | "function[abi:cxx11]()". */ | |
2395 | ||
2396 | static bool | |
2397 | skip_abi_tag (const char **name) | |
2398 | { | |
2399 | const char *p = *name; | |
2400 | ||
2401 | if (startswith (p, "[abi:")) | |
2402 | { | |
2403 | p += 5; | |
2404 | ||
2405 | while (valid_identifier_name_char (*p)) | |
2406 | p++; | |
2407 | ||
2408 | if (*p == ']') | |
2409 | { | |
2410 | p++; | |
2411 | *name = p; | |
2412 | return true; | |
2413 | } | |
2414 | } | |
2415 | return false; | |
2416 | } | |
2417 | ||
b5ec771e | 2418 | /* See utils.h. */ |
1d550c82 | 2419 | |
b5ec771e | 2420 | int |
1d550c82 | 2421 | strncmp_iw_with_mode (const char *string1, const char *string2, |
0662b6a7 | 2422 | size_t string2_len, strncmp_iw_mode mode, |
bd69330d PA |
2423 | enum language language, |
2424 | completion_match_for_lcd *match_for_lcd) | |
c906108c | 2425 | { |
0662b6a7 | 2426 | const char *string1_start = string1; |
1d550c82 | 2427 | const char *end_str2 = string2 + string2_len; |
0662b6a7 PA |
2428 | bool skip_spaces = true; |
2429 | bool have_colon_op = (language == language_cplus | |
2430 | || language == language_rust | |
2431 | || language == language_fortran); | |
1d550c82 PA |
2432 | |
2433 | while (1) | |
c906108c | 2434 | { |
0662b6a7 PA |
2435 | if (skip_spaces |
2436 | || ((isspace (*string1) && !valid_identifier_name_char (*string2)) | |
2437 | || (isspace (*string2) && !valid_identifier_name_char (*string1)))) | |
2438 | { | |
2439 | skip_ws (string1, string2, end_str2); | |
2440 | skip_spaces = false; | |
2441 | } | |
2442 | ||
bd69330d PA |
2443 | /* Skip [abi:cxx11] tags in the symbol name if the lookup name |
2444 | doesn't include them. E.g.: | |
2445 | ||
2446 | string1: function[abi:cxx1](int) | |
2447 | string2: function | |
2448 | ||
2449 | string1: function[abi:cxx1](int) | |
2450 | string2: function(int) | |
2451 | ||
2452 | string1: Struct[abi:cxx1]::function() | |
2453 | string2: Struct::function() | |
2454 | ||
2455 | string1: function(Struct[abi:cxx1], int) | |
2456 | string2: function(Struct, int) | |
2457 | */ | |
2458 | if (string2 == end_str2 | |
2459 | || (*string2 != '[' && !valid_identifier_name_char (*string2))) | |
2460 | { | |
2461 | const char *abi_start = string1; | |
2462 | ||
2463 | /* There can be more than one tag. */ | |
2464 | while (*string1 == '[' && skip_abi_tag (&string1)) | |
2465 | ; | |
2466 | ||
2467 | if (match_for_lcd != NULL && abi_start != string1) | |
2468 | match_for_lcd->mark_ignored_range (abi_start, string1); | |
2469 | ||
2470 | while (isspace (*string1)) | |
2471 | string1++; | |
2472 | } | |
2473 | ||
1d550c82 PA |
2474 | if (*string1 == '\0' || string2 == end_str2) |
2475 | break; | |
0662b6a7 PA |
2476 | |
2477 | /* Handle the :: operator. */ | |
2478 | if (have_colon_op && string1[0] == ':' && string1[1] == ':') | |
2479 | { | |
2480 | if (*string2 != ':') | |
2481 | return 1; | |
2482 | ||
2483 | string1++; | |
2484 | string2++; | |
2485 | ||
2486 | if (string2 == end_str2) | |
2487 | break; | |
2488 | ||
2489 | if (*string2 != ':') | |
2490 | return 1; | |
2491 | ||
2492 | string1++; | |
2493 | string2++; | |
2494 | ||
2495 | while (isspace (*string1)) | |
2496 | string1++; | |
2497 | while (string2 < end_str2 && isspace (*string2)) | |
2498 | string2++; | |
2499 | continue; | |
2500 | } | |
2501 | ||
2502 | /* Handle C++ user-defined operators. */ | |
2503 | else if (language == language_cplus | |
2504 | && *string1 == 'o') | |
2505 | { | |
2506 | if (cp_is_operator (string1, string1_start)) | |
2507 | { | |
2508 | /* An operator name in STRING1. Check STRING2. */ | |
2509 | size_t cmplen | |
2510 | = std::min<size_t> (CP_OPERATOR_LEN, end_str2 - string2); | |
2511 | if (strncmp (string1, string2, cmplen) != 0) | |
2512 | return 1; | |
2513 | ||
2514 | string1 += cmplen; | |
2515 | string2 += cmplen; | |
2516 | ||
2517 | if (string2 != end_str2) | |
2518 | { | |
2519 | /* Check for "operatorX" in STRING2. */ | |
2520 | if (valid_identifier_name_char (*string2)) | |
2521 | return 1; | |
2522 | ||
2523 | skip_ws (string1, string2, end_str2); | |
2524 | } | |
2525 | ||
2526 | /* Handle operator(). */ | |
2527 | if (*string1 == '(') | |
2528 | { | |
2529 | if (string2 == end_str2) | |
2530 | { | |
2531 | if (mode == strncmp_iw_mode::NORMAL) | |
2532 | return 0; | |
2533 | else | |
2534 | { | |
2535 | /* Don't break for the regular return at the | |
2536 | bottom, because "operator" should not | |
2537 | match "operator()", since this open | |
2538 | parentheses is not the parameter list | |
2539 | start. */ | |
2540 | return *string1 != '\0'; | |
2541 | } | |
2542 | } | |
2543 | ||
2544 | if (*string1 != *string2) | |
2545 | return 1; | |
2546 | ||
2547 | string1++; | |
2548 | string2++; | |
2549 | } | |
2550 | ||
2551 | while (1) | |
2552 | { | |
2553 | skip_ws (string1, string2, end_str2); | |
2554 | ||
2555 | /* Skip to end of token, or to END, whatever comes | |
2556 | first. */ | |
2557 | const char *end_str1 = string1 + strlen (string1); | |
2558 | const char *p1 = cp_skip_operator_token (string1, end_str1); | |
2559 | const char *p2 = cp_skip_operator_token (string2, end_str2); | |
2560 | ||
2561 | cmplen = std::min (p1 - string1, p2 - string2); | |
2562 | if (p2 == end_str2) | |
2563 | { | |
2564 | if (strncmp (string1, string2, cmplen) != 0) | |
2565 | return 1; | |
2566 | } | |
2567 | else | |
2568 | { | |
2569 | if (p1 - string1 != p2 - string2) | |
2570 | return 1; | |
2571 | if (strncmp (string1, string2, cmplen) != 0) | |
2572 | return 1; | |
2573 | } | |
2574 | ||
2575 | string1 += cmplen; | |
2576 | string2 += cmplen; | |
2577 | ||
2578 | if (*string1 == '\0' || string2 == end_str2) | |
2579 | break; | |
2580 | if (*string1 == '(' || *string2 == '(') | |
2581 | break; | |
2582 | } | |
2583 | ||
2584 | continue; | |
2585 | } | |
2586 | } | |
2587 | ||
559a7a62 JK |
2588 | if (case_sensitivity == case_sensitive_on && *string1 != *string2) |
2589 | break; | |
2590 | if (case_sensitivity == case_sensitive_off | |
2591 | && (tolower ((unsigned char) *string1) | |
2592 | != tolower ((unsigned char) *string2))) | |
2593 | break; | |
1d550c82 | 2594 | |
0662b6a7 PA |
2595 | /* If we see any non-whitespace, non-identifier-name character |
2596 | (any of "()<>*&" etc.), then skip spaces the next time | |
2597 | around. */ | |
2598 | if (!isspace (*string1) && !valid_identifier_name_char (*string1)) | |
2599 | skip_spaces = true; | |
2600 | ||
1d550c82 PA |
2601 | string1++; |
2602 | string2++; | |
c906108c | 2603 | } |
1d550c82 PA |
2604 | |
2605 | if (string2 == end_str2) | |
2606 | { | |
2607 | if (mode == strncmp_iw_mode::NORMAL) | |
bd69330d PA |
2608 | { |
2609 | /* Strip abi tag markers from the matched symbol name. | |
2610 | Usually the ABI marker will be found on function name | |
2611 | (automatically added because the function returns an | |
2612 | object marked with an ABI tag). However, it's also | |
2613 | possible to see a marker in one of the function | |
2614 | parameters, for example. | |
2615 | ||
2616 | string2 (lookup name): | |
2617 | func | |
2618 | symbol name: | |
2619 | function(some_struct[abi:cxx11], int) | |
2620 | ||
2621 | and for completion LCD computation we want to say that | |
2622 | the match was for: | |
2623 | function(some_struct, int) | |
2624 | */ | |
2625 | if (match_for_lcd != NULL) | |
2626 | { | |
2627 | while ((string1 = strstr (string1, "[abi:")) != NULL) | |
2628 | { | |
2629 | const char *abi_start = string1; | |
2630 | ||
2631 | /* There can be more than one tag. */ | |
2632 | while (skip_abi_tag (&string1) && *string1 == '[') | |
2633 | ; | |
2634 | ||
2635 | if (abi_start != string1) | |
2636 | match_for_lcd->mark_ignored_range (abi_start, string1); | |
2637 | } | |
2638 | } | |
2639 | ||
2640 | return 0; | |
2641 | } | |
1d550c82 PA |
2642 | else |
2643 | return (*string1 != '\0' && *string1 != '('); | |
2644 | } | |
2645 | else | |
2646 | return 1; | |
2647 | } | |
2648 | ||
2649 | /* See utils.h. */ | |
2650 | ||
2651 | int | |
2652 | strncmp_iw (const char *string1, const char *string2, size_t string2_len) | |
2653 | { | |
2654 | return strncmp_iw_with_mode (string1, string2, string2_len, | |
0662b6a7 | 2655 | strncmp_iw_mode::NORMAL, language_minimal); |
1d550c82 PA |
2656 | } |
2657 | ||
2658 | /* See utils.h. */ | |
2659 | ||
2660 | int | |
2661 | strcmp_iw (const char *string1, const char *string2) | |
2662 | { | |
2663 | return strncmp_iw_with_mode (string1, string2, strlen (string2), | |
0662b6a7 | 2664 | strncmp_iw_mode::MATCH_PARAMS, language_minimal); |
c906108c | 2665 | } |
2de7ced7 | 2666 | |
0fe19209 DC |
2667 | /* This is like strcmp except that it ignores whitespace and treats |
2668 | '(' as the first non-NULL character in terms of ordering. Like | |
2669 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2670 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2671 | according to that ordering. | |
2672 | ||
2673 | If a list is sorted according to this function and if you want to | |
2674 | find names in the list that match some fixed NAME according to | |
2675 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2676 | where this function would put NAME. | |
2677 | ||
559a7a62 JK |
2678 | This function must be neutral to the CASE_SENSITIVITY setting as the user |
2679 | may choose it during later lookup. Therefore this function always sorts | |
2680 | primarily case-insensitively and secondarily case-sensitively. | |
2681 | ||
0fe19209 DC |
2682 | Here are some examples of why using strcmp to sort is a bad idea: |
2683 | ||
2684 | Whitespace example: | |
2685 | ||
2686 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2687 | we try to do a search for "foo<char*>", strcmp will locate this | |
2688 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2689 | will start looking at strings beginning with "goo", and will never | |
2690 | see the correct match of "foo<char *>". | |
2691 | ||
2692 | Parenthesis example: | |
2693 | ||
2694 | In practice, this is less like to be an issue, but I'll give it a | |
2695 | shot. Let's assume that '$' is a legitimate character to occur in | |
2696 | symbols. (Which may well even be the case on some systems.) Then | |
2697 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2698 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2699 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2700 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2701 | "foo") is false, so it won't proceed to the actual match of | |
2702 | "foo(int)" with "foo". */ | |
2703 | ||
2704 | int | |
2705 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2706 | { | |
559a7a62 JK |
2707 | const char *saved_string1 = string1, *saved_string2 = string2; |
2708 | enum case_sensitivity case_pass = case_sensitive_off; | |
2709 | ||
2710 | for (;;) | |
0fe19209 | 2711 | { |
b11b1f88 JK |
2712 | /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'. |
2713 | Provide stub characters if we are already at the end of one of the | |
2714 | strings. */ | |
2715 | char c1 = 'X', c2 = 'X'; | |
2716 | ||
2717 | while (*string1 != '\0' && *string2 != '\0') | |
0fe19209 | 2718 | { |
b11b1f88 JK |
2719 | while (isspace (*string1)) |
2720 | string1++; | |
2721 | while (isspace (*string2)) | |
2722 | string2++; | |
2723 | ||
559a7a62 JK |
2724 | switch (case_pass) |
2725 | { | |
2726 | case case_sensitive_off: | |
2727 | c1 = tolower ((unsigned char) *string1); | |
2728 | c2 = tolower ((unsigned char) *string2); | |
2729 | break; | |
2730 | case case_sensitive_on: | |
b11b1f88 JK |
2731 | c1 = *string1; |
2732 | c2 = *string2; | |
559a7a62 JK |
2733 | break; |
2734 | } | |
b11b1f88 JK |
2735 | if (c1 != c2) |
2736 | break; | |
2737 | ||
2738 | if (*string1 != '\0') | |
2739 | { | |
2740 | string1++; | |
2741 | string2++; | |
2742 | } | |
0fe19209 | 2743 | } |
b11b1f88 JK |
2744 | |
2745 | switch (*string1) | |
0fe19209 | 2746 | { |
b11b1f88 JK |
2747 | /* Characters are non-equal unless they're both '\0'; we want to |
2748 | make sure we get the comparison right according to our | |
2749 | comparison in the cases where one of them is '\0' or '('. */ | |
2750 | case '\0': | |
2751 | if (*string2 == '\0') | |
559a7a62 | 2752 | break; |
b11b1f88 JK |
2753 | else |
2754 | return -1; | |
2755 | case '(': | |
2756 | if (*string2 == '\0') | |
2757 | return 1; | |
2758 | else | |
2759 | return -1; | |
2760 | default: | |
2761 | if (*string2 == '\0' || *string2 == '(') | |
2762 | return 1; | |
559a7a62 JK |
2763 | else if (c1 > c2) |
2764 | return 1; | |
2765 | else if (c1 < c2) | |
2766 | return -1; | |
2767 | /* PASSTHRU */ | |
0fe19209 | 2768 | } |
559a7a62 JK |
2769 | |
2770 | if (case_pass == case_sensitive_on) | |
2771 | return 0; | |
2772 | ||
2773 | /* Otherwise the strings were equal in case insensitive way, make | |
2774 | a more fine grained comparison in a case sensitive way. */ | |
2775 | ||
2776 | case_pass = case_sensitive_on; | |
2777 | string1 = saved_string1; | |
2778 | string2 = saved_string2; | |
0fe19209 | 2779 | } |
0fe19209 DC |
2780 | } |
2781 | ||
459a2e4c | 2782 | /* See utils.h. */ |
2de7ced7 | 2783 | |
459a2e4c | 2784 | bool |
2de7ced7 DJ |
2785 | streq (const char *lhs, const char *rhs) |
2786 | { | |
2787 | return !strcmp (lhs, rhs); | |
2788 | } | |
459a2e4c TT |
2789 | |
2790 | /* See utils.h. */ | |
2791 | ||
2792 | int | |
2793 | streq_hash (const void *lhs, const void *rhs) | |
2794 | { | |
2795 | return streq ((const char *) lhs, (const char *) rhs); | |
2796 | } | |
2797 | ||
c906108c | 2798 | \f |
c5aa993b | 2799 | |
c906108c | 2800 | /* |
c5aa993b JM |
2801 | ** subset_compare() |
2802 | ** Answer whether string_to_compare is a full or partial match to | |
2803 | ** template_string. The partial match must be in sequence starting | |
2804 | ** at index 0. | |
2805 | */ | |
c906108c | 2806 | int |
a121b7c1 | 2807 | subset_compare (const char *string_to_compare, const char *template_string) |
7a292a7a SS |
2808 | { |
2809 | int match; | |
e0627e85 | 2810 | |
cafb3438 | 2811 | if (template_string != NULL && string_to_compare != NULL |
8731e58e AC |
2812 | && strlen (string_to_compare) <= strlen (template_string)) |
2813 | match = | |
61012eef | 2814 | (startswith (template_string, string_to_compare)); |
7a292a7a SS |
2815 | else |
2816 | match = 0; | |
2817 | return match; | |
2818 | } | |
c906108c | 2819 | |
75feb17d DJ |
2820 | static void |
2821 | show_debug_timestamp (struct ui_file *file, int from_tty, | |
2822 | struct cmd_list_element *c, const char *value) | |
2823 | { | |
3e43a32a MS |
2824 | fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), |
2825 | value); | |
75feb17d | 2826 | } |
c906108c | 2827 | \f |
c5aa993b | 2828 | |
a738ea1d YQ |
2829 | /* See utils.h. */ |
2830 | ||
2831 | CORE_ADDR | |
2832 | address_significant (gdbarch *gdbarch, CORE_ADDR addr) | |
2833 | { | |
8727de56 OJ |
2834 | /* Clear insignificant bits of a target address and sign extend resulting |
2835 | address, avoiding shifts larger or equal than the width of a CORE_ADDR. | |
2836 | The local variable ADDR_BIT stops the compiler reporting a shift overflow | |
5969f0db OJ |
2837 | when it won't occur. Skip updating of target address if current target |
2838 | has not set gdbarch significant_addr_bit. */ | |
a738ea1d YQ |
2839 | int addr_bit = gdbarch_significant_addr_bit (gdbarch); |
2840 | ||
5969f0db | 2841 | if (addr_bit && (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))) |
8727de56 OJ |
2842 | { |
2843 | CORE_ADDR sign = (CORE_ADDR) 1 << (addr_bit - 1); | |
2844 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2845 | addr = (addr ^ sign) - sign; | |
2846 | } | |
a738ea1d YQ |
2847 | |
2848 | return addr; | |
2849 | } | |
2850 | ||
66bf4b3a | 2851 | const char * |
5af949e3 | 2852 | paddress (struct gdbarch *gdbarch, CORE_ADDR addr) |
66bf4b3a AC |
2853 | { |
2854 | /* Truncate address to the size of a target address, avoiding shifts | |
2855 | larger or equal than the width of a CORE_ADDR. The local | |
2856 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
581e13c1 | 2857 | when it won't occur. */ |
66bf4b3a AC |
2858 | /* NOTE: This assumes that the significant address information is |
2859 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2860 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2861 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2862 | ||
5af949e3 | 2863 | int addr_bit = gdbarch_addr_bit (gdbarch); |
66bf4b3a AC |
2864 | |
2865 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2866 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2867 | return hex_string (addr); | |
2868 | } | |
2869 | ||
f1310107 TJB |
2870 | /* This function is described in "defs.h". */ |
2871 | ||
2872 | const char * | |
2873 | print_core_address (struct gdbarch *gdbarch, CORE_ADDR address) | |
2874 | { | |
2875 | int addr_bit = gdbarch_addr_bit (gdbarch); | |
2876 | ||
2877 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2878 | address &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2879 | ||
2880 | /* FIXME: cagney/2002-05-03: Need local_address_string() function | |
2881 | that returns the language localized string formatted to a width | |
2882 | based on gdbarch_addr_bit. */ | |
2883 | if (addr_bit <= 32) | |
2884 | return hex_string_custom (address, 8); | |
2885 | else | |
2886 | return hex_string_custom (address, 16); | |
2887 | } | |
2888 | ||
8e3b41a9 JK |
2889 | /* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */ |
2890 | ||
2891 | hashval_t | |
2892 | core_addr_hash (const void *ap) | |
2893 | { | |
19ba03f4 | 2894 | const CORE_ADDR *addrp = (const CORE_ADDR *) ap; |
8e3b41a9 JK |
2895 | |
2896 | return *addrp; | |
2897 | } | |
2898 | ||
2899 | /* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */ | |
2900 | ||
2901 | int | |
2902 | core_addr_eq (const void *ap, const void *bp) | |
2903 | { | |
19ba03f4 SM |
2904 | const CORE_ADDR *addr_ap = (const CORE_ADDR *) ap; |
2905 | const CORE_ADDR *addr_bp = (const CORE_ADDR *) bp; | |
8e3b41a9 JK |
2906 | |
2907 | return *addr_ap == *addr_bp; | |
2908 | } | |
2909 | ||
03dd37c3 AC |
2910 | /* Convert a string back into a CORE_ADDR. */ |
2911 | CORE_ADDR | |
2912 | string_to_core_addr (const char *my_string) | |
2913 | { | |
2914 | CORE_ADDR addr = 0; | |
9544c605 | 2915 | |
03dd37c3 AC |
2916 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') |
2917 | { | |
ced572fe | 2918 | /* Assume that it is in hex. */ |
03dd37c3 | 2919 | int i; |
5d502164 | 2920 | |
03dd37c3 AC |
2921 | for (i = 2; my_string[i] != '\0'; i++) |
2922 | { | |
2923 | if (isdigit (my_string[i])) | |
2924 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 2925 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
2926 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
2927 | else | |
63f06803 | 2928 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
2929 | } |
2930 | } | |
2931 | else | |
2932 | { | |
2933 | /* Assume that it is in decimal. */ | |
2934 | int i; | |
5d502164 | 2935 | |
03dd37c3 AC |
2936 | for (i = 0; my_string[i] != '\0'; i++) |
2937 | { | |
2938 | if (isdigit (my_string[i])) | |
2939 | addr = (my_string[i] - '0') + (addr * 10); | |
2940 | else | |
63f06803 | 2941 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
2942 | } |
2943 | } | |
9544c605 | 2944 | |
03dd37c3 AC |
2945 | return addr; |
2946 | } | |
58d370e0 | 2947 | |
14278e1f TT |
2948 | #if GDB_SELF_TEST |
2949 | ||
2950 | static void | |
2951 | gdb_realpath_check_trailer (const char *input, const char *trailer) | |
2952 | { | |
2953 | gdb::unique_xmalloc_ptr<char> result = gdb_realpath (input); | |
2954 | ||
2955 | size_t len = strlen (result.get ()); | |
2956 | size_t trail_len = strlen (trailer); | |
2957 | ||
2958 | SELF_CHECK (len >= trail_len | |
2959 | && strcmp (result.get () + len - trail_len, trailer) == 0); | |
2960 | } | |
2961 | ||
2962 | static void | |
2963 | gdb_realpath_tests () | |
2964 | { | |
2965 | /* A file which contains a directory prefix. */ | |
2966 | gdb_realpath_check_trailer ("./xfullpath.exp", "/xfullpath.exp"); | |
2967 | /* A file which contains a directory prefix. */ | |
2968 | gdb_realpath_check_trailer ("../../defs.h", "/defs.h"); | |
2969 | /* A one-character filename. */ | |
2970 | gdb_realpath_check_trailer ("./a", "/a"); | |
2971 | /* A file in the root directory. */ | |
2972 | gdb_realpath_check_trailer ("/root_file_which_should_exist", | |
2973 | "/root_file_which_should_exist"); | |
2974 | /* A file which does not have a directory prefix. */ | |
2975 | gdb_realpath_check_trailer ("xfullpath.exp", "xfullpath.exp"); | |
2976 | /* A one-char filename without any directory prefix. */ | |
2977 | gdb_realpath_check_trailer ("a", "a"); | |
2978 | /* An empty filename. */ | |
2979 | gdb_realpath_check_trailer ("", ""); | |
2980 | } | |
2981 | ||
2982 | #endif /* GDB_SELF_TEST */ | |
2983 | ||
ae5a43e0 DJ |
2984 | /* Allocation function for the libiberty hash table which uses an |
2985 | obstack. The obstack is passed as DATA. */ | |
2986 | ||
2987 | void * | |
2988 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
2989 | { | |
241fd515 | 2990 | size_t total = size * count; |
ae5a43e0 | 2991 | void *ptr = obstack_alloc ((struct obstack *) data, total); |
e0627e85 | 2992 | |
ae5a43e0 DJ |
2993 | memset (ptr, 0, total); |
2994 | return ptr; | |
2995 | } | |
2996 | ||
2997 | /* Trivial deallocation function for the libiberty splay tree and hash | |
2998 | table - don't deallocate anything. Rely on later deletion of the | |
2999 | obstack. DATA will be the obstack, although it is not needed | |
3000 | here. */ | |
3001 | ||
3002 | void | |
3003 | dummy_obstack_deallocate (void *object, void *data) | |
3004 | { | |
3005 | return; | |
3006 | } | |
253c8abb | 3007 | |
e1024ff1 DJ |
3008 | /* Simple, portable version of dirname that does not modify its |
3009 | argument. */ | |
3010 | ||
d721ba37 | 3011 | std::string |
e1024ff1 DJ |
3012 | ldirname (const char *filename) |
3013 | { | |
d721ba37 | 3014 | std::string dirname; |
e1024ff1 | 3015 | const char *base = lbasename (filename); |
e1024ff1 DJ |
3016 | |
3017 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
3018 | --base; | |
3019 | ||
3020 | if (base == filename) | |
d721ba37 | 3021 | return dirname; |
e1024ff1 | 3022 | |
d721ba37 | 3023 | dirname = std::string (filename, base - filename); |
e1024ff1 DJ |
3024 | |
3025 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
3026 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
3027 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
3028 | && !IS_DIR_SEPARATOR (filename[0])) | |
3029 | dirname[base++ - filename] = '.'; | |
3030 | ||
e1024ff1 DJ |
3031 | return dirname; |
3032 | } | |
d1a41061 | 3033 | |
773a1edc TT |
3034 | /* See utils.h. */ |
3035 | ||
3036 | void | |
3037 | gdb_argv::reset (const char *s) | |
3038 | { | |
3039 | char **argv = buildargv (s); | |
3040 | ||
3041 | if (s != NULL && argv == NULL) | |
3042 | malloc_failure (0); | |
3043 | ||
3044 | freeargv (m_argv); | |
3045 | m_argv = argv; | |
3046 | } | |
3047 | ||
d18b8b7a | 3048 | #define AMBIGUOUS_MESS1 ".\nMatching formats:" |
3e43a32a MS |
3049 | #define AMBIGUOUS_MESS2 \ |
3050 | ".\nUse \"set gnutarget format-name\" to specify the format." | |
d18b8b7a | 3051 | |
803c08d0 | 3052 | std::string |
d18b8b7a HZ |
3053 | gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) |
3054 | { | |
d18b8b7a HZ |
3055 | char **p; |
3056 | ||
3057 | /* Check if errmsg just need simple return. */ | |
3058 | if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL) | |
3059 | return bfd_errmsg (error_tag); | |
3060 | ||
803c08d0 TT |
3061 | std::string ret (bfd_errmsg (error_tag)); |
3062 | ret += AMBIGUOUS_MESS1; | |
d18b8b7a HZ |
3063 | |
3064 | for (p = matching; *p; p++) | |
3065 | { | |
803c08d0 TT |
3066 | ret += " "; |
3067 | ret += *p; | |
d18b8b7a | 3068 | } |
803c08d0 | 3069 | ret += AMBIGUOUS_MESS2; |
d18b8b7a | 3070 | |
803c08d0 | 3071 | xfree (matching); |
d18b8b7a HZ |
3072 | |
3073 | return ret; | |
3074 | } | |
3075 | ||
74164c56 JK |
3076 | /* Return ARGS parsed as a valid pid, or throw an error. */ |
3077 | ||
3078 | int | |
c0939df1 | 3079 | parse_pid_to_attach (const char *args) |
74164c56 JK |
3080 | { |
3081 | unsigned long pid; | |
3082 | char *dummy; | |
3083 | ||
3084 | if (!args) | |
3085 | error_no_arg (_("process-id to attach")); | |
3086 | ||
c0939df1 | 3087 | dummy = (char *) args; |
74164c56 JK |
3088 | pid = strtoul (args, &dummy, 0); |
3089 | /* Some targets don't set errno on errors, grrr! */ | |
3090 | if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)]) | |
3091 | error (_("Illegal process-id: %s."), args); | |
3092 | ||
3093 | return pid; | |
3094 | } | |
3095 | ||
30baf67b | 3096 | /* Substitute all occurrences of string FROM by string TO in *STRINGP. *STRINGP |
6dea1fbd | 3097 | must come from xrealloc-compatible allocator and it may be updated. FROM |
1564a261 JK |
3098 | needs to be delimited by IS_DIR_SEPARATOR or DIRNAME_SEPARATOR (or be |
3099 | located at the start or end of *STRINGP. */ | |
6dea1fbd JK |
3100 | |
3101 | void | |
3102 | substitute_path_component (char **stringp, const char *from, const char *to) | |
3103 | { | |
3104 | char *string = *stringp, *s; | |
3105 | const size_t from_len = strlen (from); | |
3106 | const size_t to_len = strlen (to); | |
3107 | ||
3108 | for (s = string;;) | |
3109 | { | |
3110 | s = strstr (s, from); | |
3111 | if (s == NULL) | |
3112 | break; | |
3113 | ||
1564a261 JK |
3114 | if ((s == string || IS_DIR_SEPARATOR (s[-1]) |
3115 | || s[-1] == DIRNAME_SEPARATOR) | |
3116 | && (s[from_len] == '\0' || IS_DIR_SEPARATOR (s[from_len]) | |
3117 | || s[from_len] == DIRNAME_SEPARATOR)) | |
6dea1fbd JK |
3118 | { |
3119 | char *string_new; | |
3120 | ||
224c3ddb SM |
3121 | string_new |
3122 | = (char *) xrealloc (string, (strlen (string) + to_len + 1)); | |
6dea1fbd JK |
3123 | |
3124 | /* Relocate the current S pointer. */ | |
3125 | s = s - string + string_new; | |
3126 | string = string_new; | |
3127 | ||
3128 | /* Replace from by to. */ | |
3129 | memmove (&s[to_len], &s[from_len], strlen (&s[from_len]) + 1); | |
3130 | memcpy (s, to, to_len); | |
3131 | ||
3132 | s += to_len; | |
3133 | } | |
3134 | else | |
3135 | s++; | |
3136 | } | |
3137 | ||
3138 | *stringp = string; | |
3139 | } | |
3140 | ||
0b6cb71e DE |
3141 | #ifdef HAVE_WAITPID |
3142 | ||
3143 | #ifdef SIGALRM | |
3144 | ||
3145 | /* SIGALRM handler for waitpid_with_timeout. */ | |
3146 | ||
3147 | static void | |
3148 | sigalrm_handler (int signo) | |
3149 | { | |
3150 | /* Nothing to do. */ | |
3151 | } | |
3152 | ||
3153 | #endif | |
3154 | ||
3155 | /* Wrapper to wait for child PID to die with TIMEOUT. | |
3156 | TIMEOUT is the time to stop waiting in seconds. | |
3157 | If TIMEOUT is zero, pass WNOHANG to waitpid. | |
3158 | Returns PID if it was successfully waited for, otherwise -1. | |
3159 | ||
3160 | Timeouts are currently implemented with alarm and SIGALRM. | |
3161 | If the host does not support them, this waits "forever". | |
3162 | It would be odd though for a host to have waitpid and not SIGALRM. */ | |
3163 | ||
3164 | pid_t | |
3165 | wait_to_die_with_timeout (pid_t pid, int *status, int timeout) | |
3166 | { | |
3167 | pid_t waitpid_result; | |
3168 | ||
3169 | gdb_assert (pid > 0); | |
3170 | gdb_assert (timeout >= 0); | |
3171 | ||
3172 | if (timeout > 0) | |
3173 | { | |
3174 | #ifdef SIGALRM | |
3175 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3176 | struct sigaction sa, old_sa; | |
3177 | ||
3178 | sa.sa_handler = sigalrm_handler; | |
3179 | sigemptyset (&sa.sa_mask); | |
3180 | sa.sa_flags = 0; | |
3181 | sigaction (SIGALRM, &sa, &old_sa); | |
3182 | #else | |
a40805d4 | 3183 | sighandler_t ofunc; |
0b6cb71e | 3184 | |
a40805d4 | 3185 | ofunc = signal (SIGALRM, sigalrm_handler); |
0b6cb71e DE |
3186 | #endif |
3187 | ||
3188 | alarm (timeout); | |
3189 | #endif | |
3190 | ||
3191 | waitpid_result = waitpid (pid, status, 0); | |
3192 | ||
3193 | #ifdef SIGALRM | |
3194 | alarm (0); | |
3195 | #if defined (HAVE_SIGACTION) && defined (SA_RESTART) | |
3196 | sigaction (SIGALRM, &old_sa, NULL); | |
3197 | #else | |
3198 | signal (SIGALRM, ofunc); | |
3199 | #endif | |
3200 | #endif | |
3201 | } | |
3202 | else | |
3203 | waitpid_result = waitpid (pid, status, WNOHANG); | |
3204 | ||
3205 | if (waitpid_result == pid) | |
3206 | return pid; | |
3207 | else | |
3208 | return -1; | |
3209 | } | |
3210 | ||
3211 | #endif /* HAVE_WAITPID */ | |
3212 | ||
202cbf1c JK |
3213 | /* Provide fnmatch compatible function for FNM_FILE_NAME matching of host files. |
3214 | Both FNM_FILE_NAME and FNM_NOESCAPE must be set in FLAGS. | |
3215 | ||
3216 | It handles correctly HAVE_DOS_BASED_FILE_SYSTEM and | |
3217 | HAVE_CASE_INSENSITIVE_FILE_SYSTEM. */ | |
3218 | ||
3219 | int | |
3220 | gdb_filename_fnmatch (const char *pattern, const char *string, int flags) | |
3221 | { | |
3222 | gdb_assert ((flags & FNM_FILE_NAME) != 0); | |
3223 | ||
3224 | /* It is unclear how '\' escaping vs. directory separator should coexist. */ | |
3225 | gdb_assert ((flags & FNM_NOESCAPE) != 0); | |
3226 | ||
3227 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
3228 | { | |
3229 | char *pattern_slash, *string_slash; | |
3230 | ||
3231 | /* Replace '\' by '/' in both strings. */ | |
3232 | ||
0ae1c716 | 3233 | pattern_slash = (char *) alloca (strlen (pattern) + 1); |
202cbf1c JK |
3234 | strcpy (pattern_slash, pattern); |
3235 | pattern = pattern_slash; | |
3236 | for (; *pattern_slash != 0; pattern_slash++) | |
3237 | if (IS_DIR_SEPARATOR (*pattern_slash)) | |
3238 | *pattern_slash = '/'; | |
3239 | ||
0ae1c716 | 3240 | string_slash = (char *) alloca (strlen (string) + 1); |
202cbf1c JK |
3241 | strcpy (string_slash, string); |
3242 | string = string_slash; | |
3243 | for (; *string_slash != 0; string_slash++) | |
3244 | if (IS_DIR_SEPARATOR (*string_slash)) | |
3245 | *string_slash = '/'; | |
3246 | } | |
3247 | #endif /* HAVE_DOS_BASED_FILE_SYSTEM */ | |
3248 | ||
3249 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
3250 | flags |= FNM_CASEFOLD; | |
3251 | #endif /* HAVE_CASE_INSENSITIVE_FILE_SYSTEM */ | |
3252 | ||
3253 | return fnmatch (pattern, string, flags); | |
3254 | } | |
3255 | ||
cce0e923 DE |
3256 | /* Return the number of path elements in PATH. |
3257 | / = 1 | |
3258 | /foo = 2 | |
3259 | /foo/ = 2 | |
3260 | foo/bar = 2 | |
3261 | foo/ = 1 */ | |
3262 | ||
3263 | int | |
3264 | count_path_elements (const char *path) | |
3265 | { | |
3266 | int count = 0; | |
3267 | const char *p = path; | |
3268 | ||
3269 | if (HAS_DRIVE_SPEC (p)) | |
3270 | { | |
3271 | p = STRIP_DRIVE_SPEC (p); | |
3272 | ++count; | |
3273 | } | |
3274 | ||
3275 | while (*p != '\0') | |
3276 | { | |
3277 | if (IS_DIR_SEPARATOR (*p)) | |
3278 | ++count; | |
3279 | ++p; | |
3280 | } | |
3281 | ||
3282 | /* Backup one if last character is /, unless it's the only one. */ | |
3283 | if (p > path + 1 && IS_DIR_SEPARATOR (p[-1])) | |
3284 | --count; | |
3285 | ||
3286 | /* Add one for the file name, if present. */ | |
3287 | if (p > path && !IS_DIR_SEPARATOR (p[-1])) | |
3288 | ++count; | |
3289 | ||
3290 | return count; | |
3291 | } | |
3292 | ||
3293 | /* Remove N leading path elements from PATH. | |
3294 | N must be non-negative. | |
3295 | If PATH has more than N path elements then return NULL. | |
3296 | If PATH has exactly N path elements then return "". | |
3297 | See count_path_elements for a description of how we do the counting. */ | |
3298 | ||
3299 | const char * | |
3300 | strip_leading_path_elements (const char *path, int n) | |
3301 | { | |
3302 | int i = 0; | |
3303 | const char *p = path; | |
3304 | ||
3305 | gdb_assert (n >= 0); | |
3306 | ||
3307 | if (n == 0) | |
3308 | return p; | |
3309 | ||
3310 | if (HAS_DRIVE_SPEC (p)) | |
3311 | { | |
3312 | p = STRIP_DRIVE_SPEC (p); | |
3313 | ++i; | |
3314 | } | |
3315 | ||
3316 | while (i < n) | |
3317 | { | |
3318 | while (*p != '\0' && !IS_DIR_SEPARATOR (*p)) | |
3319 | ++p; | |
3320 | if (*p == '\0') | |
3321 | { | |
3322 | if (i + 1 == n) | |
3323 | return ""; | |
3324 | return NULL; | |
3325 | } | |
3326 | ++p; | |
3327 | ++i; | |
3328 | } | |
3329 | ||
3330 | return p; | |
3331 | } | |
3332 | ||
a99bc3d2 JB |
3333 | /* See utils.h. */ |
3334 | ||
3335 | void | |
3336 | copy_bitwise (gdb_byte *dest, ULONGEST dest_offset, | |
3337 | const gdb_byte *source, ULONGEST source_offset, | |
3338 | ULONGEST nbits, int bits_big_endian) | |
3339 | { | |
3340 | unsigned int buf, avail; | |
3341 | ||
3342 | if (nbits == 0) | |
3343 | return; | |
3344 | ||
3345 | if (bits_big_endian) | |
3346 | { | |
3347 | /* Start from the end, then work backwards. */ | |
3348 | dest_offset += nbits - 1; | |
3349 | dest += dest_offset / 8; | |
3350 | dest_offset = 7 - dest_offset % 8; | |
3351 | source_offset += nbits - 1; | |
3352 | source += source_offset / 8; | |
3353 | source_offset = 7 - source_offset % 8; | |
3354 | } | |
3355 | else | |
3356 | { | |
3357 | dest += dest_offset / 8; | |
3358 | dest_offset %= 8; | |
3359 | source += source_offset / 8; | |
3360 | source_offset %= 8; | |
3361 | } | |
3362 | ||
3363 | /* Fill BUF with DEST_OFFSET bits from the destination and 8 - | |
3364 | SOURCE_OFFSET bits from the source. */ | |
3365 | buf = *(bits_big_endian ? source-- : source++) >> source_offset; | |
3366 | buf <<= dest_offset; | |
3367 | buf |= *dest & ((1 << dest_offset) - 1); | |
3368 | ||
3369 | /* NBITS: bits yet to be written; AVAIL: BUF's fill level. */ | |
3370 | nbits += dest_offset; | |
3371 | avail = dest_offset + 8 - source_offset; | |
3372 | ||
3373 | /* Flush 8 bits from BUF, if appropriate. */ | |
3374 | if (nbits >= 8 && avail >= 8) | |
3375 | { | |
3376 | *(bits_big_endian ? dest-- : dest++) = buf; | |
3377 | buf >>= 8; | |
3378 | avail -= 8; | |
3379 | nbits -= 8; | |
3380 | } | |
3381 | ||
3382 | /* Copy the middle part. */ | |
3383 | if (nbits >= 8) | |
3384 | { | |
3385 | size_t len = nbits / 8; | |
3386 | ||
3387 | /* Use a faster method for byte-aligned copies. */ | |
3388 | if (avail == 0) | |
3389 | { | |
3390 | if (bits_big_endian) | |
3391 | { | |
3392 | dest -= len; | |
3393 | source -= len; | |
3394 | memcpy (dest + 1, source + 1, len); | |
3395 | } | |
3396 | else | |
3397 | { | |
3398 | memcpy (dest, source, len); | |
3399 | dest += len; | |
3400 | source += len; | |
3401 | } | |
3402 | } | |
3403 | else | |
3404 | { | |
3405 | while (len--) | |
3406 | { | |
3407 | buf |= *(bits_big_endian ? source-- : source++) << avail; | |
3408 | *(bits_big_endian ? dest-- : dest++) = buf; | |
3409 | buf >>= 8; | |
3410 | } | |
3411 | } | |
3412 | nbits %= 8; | |
3413 | } | |
3414 | ||
3415 | /* Write the last byte. */ | |
3416 | if (nbits) | |
3417 | { | |
3418 | if (avail < nbits) | |
3419 | buf |= *source << avail; | |
3420 | ||
3421 | buf &= (1 << nbits) - 1; | |
3422 | *dest = (*dest & (~0 << nbits)) | buf; | |
3423 | } | |
3424 | } | |
3425 | ||
3c16cced PA |
3426 | void |
3427 | _initialize_utils (void) | |
3428 | { | |
12904d37 TT |
3429 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
3430 | Set number of characters where GDB should wrap lines of its output."), _("\ | |
3431 | Show number of characters where GDB should wrap lines of its output."), _("\ | |
3432 | This affects where GDB wraps its output to fit the screen width.\n\ | |
3433 | Setting this to \"unlimited\" or zero prevents GDB from wrapping its output."), | |
3434 | set_width_command, | |
3435 | show_chars_per_line, | |
3436 | &setlist, &showlist); | |
3437 | ||
3438 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
3439 | Set number of lines in a page for GDB output pagination."), _("\ | |
3440 | Show number of lines in a page for GDB output pagination."), _("\ | |
3441 | This affects the number of lines after which GDB will pause\n\ | |
3442 | its output and ask you whether to continue.\n\ | |
3443 | Setting this to \"unlimited\" or zero causes GDB never pause during output."), | |
3444 | set_height_command, | |
3445 | show_lines_per_page, | |
3446 | &setlist, &showlist); | |
3447 | ||
3448 | add_setshow_boolean_cmd ("pagination", class_support, | |
3449 | &pagination_enabled, _("\ | |
3450 | Set state of GDB output pagination."), _("\ | |
3451 | Show state of GDB output pagination."), _("\ | |
3452 | When pagination is ON, GDB pauses at end of each screenful of\n\ | |
3453 | its output and asks you whether to continue.\n\ | |
3454 | Turning pagination off is an alternative to \"set height unlimited\"."), | |
3455 | NULL, | |
3456 | show_pagination_enabled, | |
3457 | &setlist, &showlist); | |
3458 | ||
3459 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, | |
3460 | &sevenbit_strings, _("\ | |
3461 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
3462 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
3463 | NULL, | |
3464 | show_sevenbit_strings, | |
3465 | &setprintlist, &showprintlist); | |
3466 | ||
3467 | add_setshow_boolean_cmd ("timestamp", class_maintenance, | |
3468 | &debug_timestamp, _("\ | |
3469 | Set timestamping of debugging messages."), _("\ | |
3470 | Show timestamping of debugging messages."), _("\ | |
3471 | When set, debugging messages will be marked with seconds and microseconds."), | |
3472 | NULL, | |
3473 | show_debug_timestamp, | |
3474 | &setdebuglist, &showdebuglist); | |
3475 | ||
3c16cced PA |
3476 | add_internal_problem_command (&internal_error_problem); |
3477 | add_internal_problem_command (&internal_warning_problem); | |
57fcfb1b | 3478 | add_internal_problem_command (&demangler_warning_problem); |
14278e1f TT |
3479 | |
3480 | #if GDB_SELF_TEST | |
1526853e | 3481 | selftests::register_test ("gdb_realpath", gdb_realpath_tests); |
14278e1f | 3482 | #endif |
3c16cced | 3483 | } |