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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
9b254dd1 DJ |
4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
5 | 2008 Free Software Foundation, Inc. | |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include "gdbcmd.h" | |
24 | #include "call-cmds.h" | |
210661e7 EZ |
25 | #include "cli/cli-cmds.h" |
26 | #include "cli/cli-script.h" | |
27 | #include "cli/cli-setshow.h" | |
18a642a1 | 28 | #include "cli/cli-decode.h" |
c906108c SS |
29 | #include "symtab.h" |
30 | #include "inferior.h" | |
60250e8b | 31 | #include "exceptions.h" |
042be3a9 | 32 | #include <signal.h> |
c906108c SS |
33 | #include "target.h" |
34 | #include "breakpoint.h" | |
35 | #include "gdbtypes.h" | |
36 | #include "expression.h" | |
37 | #include "value.h" | |
38 | #include "language.h" | |
c5aa993b | 39 | #include "terminal.h" /* For job_control. */ |
c906108c | 40 | #include "annotate.h" |
c5f0f3d0 | 41 | #include "completer.h" |
c906108c | 42 | #include "top.h" |
d4f3574e | 43 | #include "version.h" |
210661e7 | 44 | #include "serial.h" |
d16aafd8 | 45 | #include "doublest.h" |
f9c696d2 | 46 | #include "gdb_assert.h" |
f17517ea | 47 | #include "main.h" |
2e03ee74 | 48 | #include "event-loop.h" |
c906108c SS |
49 | |
50 | /* readline include files */ | |
dbda9972 AC |
51 | #include "readline/readline.h" |
52 | #include "readline/history.h" | |
c906108c SS |
53 | |
54 | /* readline defines this. */ | |
55 | #undef savestring | |
56 | ||
57 | #include <sys/types.h> | |
c906108c | 58 | |
c2c6d25f | 59 | #include "event-top.h" |
c906108c SS |
60 | #include "gdb_string.h" |
61 | #include "gdb_stat.h" | |
62 | #include <ctype.h> | |
8b93c638 JM |
63 | #include "ui-out.h" |
64 | #include "cli-out.h" | |
c906108c | 65 | |
104c1213 JM |
66 | /* Default command line prompt. This is overriden in some configs. */ |
67 | ||
68 | #ifndef DEFAULT_PROMPT | |
69 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
70 | #endif |
71 | ||
72 | /* Initialization file name for gdb. This is overridden in some configs. */ | |
73 | ||
eaae3919 EZ |
74 | #ifndef PATH_MAX |
75 | # ifdef FILENAME_MAX | |
76 | # define PATH_MAX FILENAME_MAX | |
77 | # else | |
78 | # define PATH_MAX 512 | |
79 | # endif | |
80 | #endif | |
81 | ||
c906108c SS |
82 | #ifndef GDBINIT_FILENAME |
83 | #define GDBINIT_FILENAME ".gdbinit" | |
84 | #endif | |
eaae3919 | 85 | char gdbinit[PATH_MAX + 1] = GDBINIT_FILENAME; |
c906108c SS |
86 | |
87 | int inhibit_gdbinit = 0; | |
88 | ||
89 | /* If nonzero, and GDB has been configured to be able to use windows, | |
90 | attempt to open them upon startup. */ | |
91 | ||
f15ab4a7 | 92 | int use_windows = 0; |
c906108c | 93 | |
c906108c SS |
94 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
95 | ||
96 | /* Flag for whether we want all the "from_tty" gubbish printed. */ | |
97 | ||
c5aa993b | 98 | int caution = 1; /* Default is yes, sigh. */ |
920d2a44 AC |
99 | static void |
100 | show_caution (struct ui_file *file, int from_tty, | |
101 | struct cmd_list_element *c, const char *value) | |
102 | { | |
103 | fprintf_filtered (file, _("\ | |
104 | Whether to confirm potentially dangerous operations is %s.\n"), | |
105 | value); | |
106 | } | |
c906108c | 107 | |
c906108c SS |
108 | /* stdio stream that command input is being read from. Set to stdin normally. |
109 | Set by source_command to the file we are sourcing. Set to NULL if we are | |
110 | executing a user-defined command or interacting via a GUI. */ | |
111 | ||
112 | FILE *instream; | |
113 | ||
698ba934 DJ |
114 | /* Flag to indicate whether a user defined command is currently running. */ |
115 | ||
116 | int in_user_command; | |
117 | ||
c906108c SS |
118 | /* Current working directory. */ |
119 | ||
120 | char *current_directory; | |
121 | ||
122 | /* The directory name is actually stored here (usually). */ | |
123 | char gdb_dirbuf[1024]; | |
124 | ||
125 | /* Function to call before reading a command, if nonzero. | |
126 | The function receives two args: an input stream, | |
127 | and a prompt string. */ | |
128 | ||
507f3c78 | 129 | void (*window_hook) (FILE *, char *); |
c906108c SS |
130 | |
131 | int epoch_interface; | |
132 | int xgdb_verbose; | |
133 | ||
134 | /* gdb prints this when reading a command interactively */ | |
c5aa993b | 135 | static char *gdb_prompt_string; /* the global prompt string */ |
c906108c SS |
136 | |
137 | /* Buffer used for reading command lines, and the size | |
138 | allocated for it so far. */ | |
139 | ||
140 | char *line; | |
141 | int linesize = 100; | |
142 | ||
143 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 144 | affects things like recording into the command history, commands |
c906108c SS |
145 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
146 | whatever) can issue its own commands and also send along commands | |
147 | from the user, and have the user not notice that the user interface | |
148 | is issuing commands too. */ | |
149 | int server_command; | |
150 | ||
151 | /* Baud rate specified for talking to serial target systems. Default | |
152 | is left as -1, so targets can choose their own defaults. */ | |
153 | /* FIXME: This means that "show remotebaud" and gr_files_info can print -1 | |
154 | or (unsigned int)-1. This is a Bad User Interface. */ | |
155 | ||
156 | int baud_rate = -1; | |
157 | ||
158 | /* Timeout limit for response from target. */ | |
159 | ||
ce808e91 AC |
160 | /* The default value has been changed many times over the years. It |
161 | was originally 5 seconds. But that was thought to be a long time | |
162 | to sit and wait, so it was changed to 2 seconds. That was thought | |
163 | to be plenty unless the connection was going through some terminal | |
164 | server or multiplexer or other form of hairy serial connection. | |
165 | ||
166 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
167 | it began being used in other remote-* targets. It appears that the | |
168 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 169 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
170 | |
171 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
172 | 20 seconds is far worse. This demonstrates the difficulty of using | |
173 | a single variable for all protocol timeouts. | |
174 | ||
175 | As remote.c is used much more than remote-e7000.c, it was changed | |
176 | back to 2 seconds in 1999. */ | |
177 | ||
178 | int remote_timeout = 2; | |
c906108c SS |
179 | |
180 | /* Non-zero tells remote* modules to output debugging info. */ | |
181 | ||
182 | int remote_debug = 0; | |
183 | ||
43ff13b4 JM |
184 | /* Non-zero means the target is running. Note: this is different from |
185 | saying that there is an active target and we are stopped at a | |
186 | breakpoint, for instance. This is a real indicator whether the | |
187 | target is off and running, which gdb is doing something else. */ | |
188 | int target_executing = 0; | |
189 | ||
6dd77b81 RH |
190 | /* Sbrk location on entry to main. Used for statistics only. */ |
191 | #ifdef HAVE_SBRK | |
192 | char *lim_at_start; | |
193 | #endif | |
194 | ||
c906108c SS |
195 | /* Signal to catch ^Z typed while reading a command: SIGTSTP or SIGCONT. */ |
196 | ||
197 | #ifndef STOP_SIGNAL | |
198 | #ifdef SIGTSTP | |
199 | #define STOP_SIGNAL SIGTSTP | |
a14ed312 | 200 | static void stop_sig (int); |
c906108c SS |
201 | #endif |
202 | #endif | |
203 | ||
c906108c SS |
204 | /* Hooks for alternate command interfaces. */ |
205 | ||
206 | /* Called after most modules have been initialized, but before taking users | |
1ad24239 KS |
207 | command file. |
208 | ||
209 | If the UI fails to initialize and it wants GDB to continue | |
210 | using the default UI, then it should clear this hook before returning. */ | |
c906108c | 211 | |
9a4105ab | 212 | void (*deprecated_init_ui_hook) (char *argv0); |
7a292a7a SS |
213 | |
214 | /* This hook is called from within gdb's many mini-event loops which could | |
215 | steal control from a real user interface's event loop. It returns | |
216 | non-zero if the user is requesting a detach, zero otherwise. */ | |
217 | ||
98bbd631 | 218 | int (*deprecated_ui_loop_hook) (int); |
c906108c SS |
219 | |
220 | /* Called instead of command_loop at top level. Can be invoked via | |
b5a2688f | 221 | throw_exception(). */ |
c906108c | 222 | |
9a4105ab | 223 | void (*deprecated_command_loop_hook) (void); |
c906108c SS |
224 | |
225 | ||
c906108c SS |
226 | /* Called from print_frame_info to list the line we stopped in. */ |
227 | ||
9a4105ab AC |
228 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, int line, |
229 | int stopline, int noerror); | |
c906108c SS |
230 | /* Replaces most of query. */ |
231 | ||
9a4105ab | 232 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
233 | |
234 | /* Replaces most of warning. */ | |
235 | ||
9a4105ab | 236 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 237 | |
9a4105ab AC |
238 | /* These three functions support getting lines of text from the user. |
239 | They are used in sequence. First deprecated_readline_begin_hook is | |
240 | called with a text string that might be (for example) a message for | |
241 | the user to type in a sequence of commands to be executed at a | |
242 | breakpoint. If this function calls back to a GUI, it might take | |
243 | this opportunity to pop up a text interaction window with this | |
244 | message. Next, deprecated_readline_hook is called with a prompt | |
245 | that is emitted prior to collecting the user input. It can be | |
246 | called multiple times. Finally, deprecated_readline_end_hook is | |
247 | called to notify the GUI that we are done with the interaction | |
248 | window and it can close it. */ | |
c906108c | 249 | |
9a4105ab AC |
250 | void (*deprecated_readline_begin_hook) (char *, ...); |
251 | char *(*deprecated_readline_hook) (char *); | |
252 | void (*deprecated_readline_end_hook) (void); | |
c906108c SS |
253 | |
254 | /* Called as appropriate to notify the interface of the specified breakpoint | |
255 | conditions. */ | |
256 | ||
9a4105ab AC |
257 | void (*deprecated_create_breakpoint_hook) (struct breakpoint * bpt); |
258 | void (*deprecated_delete_breakpoint_hook) (struct breakpoint * bpt); | |
259 | void (*deprecated_modify_breakpoint_hook) (struct breakpoint * bpt); | |
c906108c | 260 | |
6426a772 JM |
261 | /* Called as appropriate to notify the interface that we have attached |
262 | to or detached from an already running process. */ | |
263 | ||
9a4105ab AC |
264 | void (*deprecated_attach_hook) (void); |
265 | void (*deprecated_detach_hook) (void); | |
6426a772 | 266 | |
c906108c SS |
267 | /* Called during long calculations to allow GUI to repair window damage, and to |
268 | check for stop buttons, etc... */ | |
269 | ||
9a4105ab | 270 | void (*deprecated_interactive_hook) (void); |
c906108c | 271 | |
c906108c SS |
272 | /* Tell the GUI someone changed the register REGNO. -1 means |
273 | that the caller does not know which register changed or | |
c5aa993b | 274 | that several registers have changed (see value_assign). */ |
9a4105ab | 275 | void (*deprecated_register_changed_hook) (int regno); |
c906108c SS |
276 | |
277 | /* Tell the GUI someone changed LEN bytes of memory at ADDR */ | |
9a4105ab | 278 | void (*deprecated_memory_changed_hook) (CORE_ADDR addr, int len); |
c906108c SS |
279 | |
280 | /* Called when going to wait for the target. Usually allows the GUI to run | |
281 | while waiting for target events. */ | |
282 | ||
9a4105ab AC |
283 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
284 | struct target_waitstatus * status); | |
c906108c SS |
285 | |
286 | /* Used by UI as a wrapper around command execution. May do various things | |
287 | like enabling/disabling buttons, etc... */ | |
288 | ||
9a4105ab AC |
289 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, char *cmd, |
290 | int from_tty); | |
c906108c | 291 | |
96baa820 JM |
292 | /* Called after a `set' command has finished. Is only run if the |
293 | `set' command succeeded. */ | |
294 | ||
9a4105ab | 295 | void (*deprecated_set_hook) (struct cmd_list_element * c); |
96baa820 | 296 | |
c906108c SS |
297 | /* Called when the current thread changes. Argument is thread id. */ |
298 | ||
9a4105ab | 299 | void (*deprecated_context_hook) (int id); |
c906108c SS |
300 | |
301 | /* Takes control from error (). Typically used to prevent longjmps out of the | |
302 | middle of the GUI. Usually used in conjunction with a catch routine. */ | |
303 | ||
c40d0d10 | 304 | void (*deprecated_error_hook) (void); |
11cf8741 | 305 | |
c906108c SS |
306 | /* Handler for SIGHUP. */ |
307 | ||
308 | #ifdef SIGHUP | |
392a587b | 309 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 SS |
310 | gdb to use the event loop as the default command loop and we merge |
311 | event-top.c into this file, top.c */ | |
312 | /* static */ int | |
d0c8cdfb | 313 | quit_cover (void *s) |
c906108c | 314 | { |
c5aa993b JM |
315 | caution = 0; /* Throw caution to the wind -- we're exiting. |
316 | This prevents asking the user dumb questions. */ | |
317 | quit_command ((char *) 0, 0); | |
c906108c SS |
318 | return 0; |
319 | } | |
320 | #endif /* defined SIGHUP */ | |
321 | \f | |
322 | /* Line number we are currently in in a file which is being sourced. */ | |
392a587b | 323 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
324 | gdb to use the event loop as the default command loop and we merge |
325 | event-top.c into this file, top.c */ | |
326 | /* static */ int source_line_number; | |
c906108c SS |
327 | |
328 | /* Name of the file we are sourcing. */ | |
392a587b | 329 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
330 | gdb to use the event loop as the default command loop and we merge |
331 | event-top.c into this file, top.c */ | |
332 | /* static */ char *source_file_name; | |
c906108c | 333 | |
c906108c SS |
334 | /* Clean up on error during a "source" command (or execution of a |
335 | user-defined command). */ | |
336 | ||
d318976c | 337 | void |
e41a3b1a | 338 | do_restore_instream_cleanup (void *stream) |
c906108c SS |
339 | { |
340 | /* Restore the previous input stream. */ | |
341 | instream = stream; | |
342 | } | |
343 | ||
344 | /* Read commands from STREAM. */ | |
345 | void | |
fba45db2 | 346 | read_command_file (FILE *stream) |
c906108c SS |
347 | { |
348 | struct cleanup *cleanups; | |
349 | ||
e41a3b1a | 350 | cleanups = make_cleanup (do_restore_instream_cleanup, instream); |
c906108c | 351 | instream = stream; |
c5aa993b | 352 | command_loop (); |
c906108c SS |
353 | do_cleanups (cleanups); |
354 | } | |
355 | \f | |
507f3c78 | 356 | void (*pre_init_ui_hook) (void); |
c906108c | 357 | |
e41a3b1a AC |
358 | #ifdef __MSDOS__ |
359 | void | |
360 | do_chdir_cleanup (void *old_dir) | |
361 | { | |
362 | chdir (old_dir); | |
b8c9b27d | 363 | xfree (old_dir); |
e41a3b1a AC |
364 | } |
365 | #endif | |
366 | ||
32c1e744 VP |
367 | /* Do any commands attached to breakpoint we stopped at. Only if we |
368 | are always running synchronously. Or if we have just executed a | |
369 | command that doesn't start the target. */ | |
370 | static void | |
371 | command_line_handler_continuation (struct continuation_arg *arg) | |
372 | { | |
373 | extern int display_time; | |
374 | extern int display_space; | |
375 | ||
376 | long time_at_cmd_start = arg->data.longint; | |
377 | long space_at_cmd_start = arg->next->data.longint; | |
378 | ||
379 | bpstat_do_actions (&stop_bpstat); | |
380 | ||
381 | if (display_time) | |
382 | { | |
383 | long cmd_time = get_run_time () - time_at_cmd_start; | |
384 | ||
385 | printf_unfiltered (_("Command execution time: %ld.%06ld\n"), | |
386 | cmd_time / 1000000, cmd_time % 1000000); | |
387 | } | |
388 | if (display_space) | |
389 | { | |
390 | #ifdef HAVE_SBRK | |
391 | char *lim = (char *) sbrk (0); | |
392 | long space_now = lim - lim_at_start; | |
393 | long space_diff = space_now - space_at_cmd_start; | |
394 | ||
395 | printf_unfiltered (_("Space used: %ld (%c%ld for this command)\n"), | |
396 | space_now, | |
397 | (space_diff >= 0 ? '+' : '-'), | |
398 | space_diff); | |
399 | #endif | |
400 | } | |
401 | } | |
402 | ||
d318976c FN |
403 | /* Execute the line P as a command. |
404 | Pass FROM_TTY as second argument to the defining function. */ | |
c906108c | 405 | |
d318976c FN |
406 | void |
407 | execute_command (char *p, int from_tty) | |
c906108c | 408 | { |
52f0bd74 AC |
409 | struct cmd_list_element *c; |
410 | enum language flang; | |
d318976c FN |
411 | static int warned = 0; |
412 | char *line; | |
32c1e744 VP |
413 | struct continuation_arg *arg1; |
414 | struct continuation_arg *arg2; | |
2f77b315 | 415 | long time_at_cmd_start = 0; |
32c1e744 VP |
416 | #ifdef HAVE_SBRK |
417 | long space_at_cmd_start = 0; | |
418 | #endif | |
419 | extern int display_time; | |
420 | extern int display_space; | |
421 | ||
422 | if (target_can_async_p ()) | |
423 | { | |
424 | time_at_cmd_start = get_run_time (); | |
425 | ||
426 | if (display_space) | |
427 | { | |
428 | #ifdef HAVE_SBRK | |
429 | char *lim = (char *) sbrk (0); | |
430 | space_at_cmd_start = lim - lim_at_start; | |
431 | #endif | |
432 | } | |
433 | } | |
67e1e03a | 434 | |
d318976c | 435 | free_all_values (); |
c906108c | 436 | |
d318976c FN |
437 | /* Force cleanup of any alloca areas if using C alloca instead of |
438 | a builtin alloca. */ | |
439 | alloca (0); | |
c906108c | 440 | |
d318976c FN |
441 | /* This can happen when command_line_input hits end of file. */ |
442 | if (p == NULL) | |
443 | return; | |
c906108c | 444 | |
49d03eab | 445 | target_log_command (p); |
8b93c638 | 446 | |
d318976c FN |
447 | while (*p == ' ' || *p == '\t') |
448 | p++; | |
449 | if (*p) | |
8b93c638 | 450 | { |
d318976c FN |
451 | char *arg; |
452 | line = p; | |
8b93c638 | 453 | |
16026cd7 AS |
454 | /* If trace-commands is set then this will print this command. */ |
455 | print_command_trace (p); | |
456 | ||
d318976c | 457 | c = lookup_cmd (&p, cmdlist, "", 0, 1); |
8b93c638 | 458 | |
d318976c FN |
459 | /* If the target is running, we allow only a limited set of |
460 | commands. */ | |
700b53b1 TT |
461 | if (target_can_async_p () && target_executing && !get_cmd_async_ok (c)) |
462 | error (_("Cannot execute this command while the target is running.")); | |
8b93c638 | 463 | |
d318976c FN |
464 | /* Pass null arg rather than an empty one. */ |
465 | arg = *p ? p : 0; | |
8b93c638 | 466 | |
9f60d481 AC |
467 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
468 | while the is_complete_command(cfunc) test is just plain | |
469 | bogus. They should both be replaced by a test of the form | |
470 | c->strip_trailing_white_space_p. */ | |
471 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
472 | can't be replaced with func. This is because it is the | |
473 | cfunc, and not the func, that has the value that the | |
474 | is_complete_command hack is testing for. */ | |
475 | /* Clear off trailing whitespace, except for set and complete | |
476 | command. */ | |
d318976c FN |
477 | if (arg |
478 | && c->type != set_cmd | |
bbaca940 | 479 | && !is_complete_command (c)) |
8b93c638 | 480 | { |
d318976c FN |
481 | p = arg + strlen (arg) - 1; |
482 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
483 | p--; | |
484 | *(p + 1) = '\0'; | |
8b93c638 JM |
485 | } |
486 | ||
d318976c | 487 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 488 | execute_cmd_pre_hook (c); |
c906108c | 489 | |
d318976c FN |
490 | if (c->flags & DEPRECATED_WARN_USER) |
491 | deprecated_cmd_warning (&line); | |
c906108c | 492 | |
d318976c FN |
493 | if (c->class == class_user) |
494 | execute_user_command (c, arg); | |
495 | else if (c->type == set_cmd || c->type == show_cmd) | |
496 | do_setshow_command (arg, from_tty & caution, c); | |
f436dd25 | 497 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 498 | error (_("That is not a command, just a help topic.")); |
9a4105ab AC |
499 | else if (deprecated_call_command_hook) |
500 | deprecated_call_command_hook (c, arg, from_tty & caution); | |
d318976c | 501 | else |
f436dd25 | 502 | cmd_func (c, arg, from_tty & caution); |
d318976c FN |
503 | |
504 | /* If this command has been post-hooked, run the hook last. */ | |
5913bcb0 | 505 | execute_cmd_post_hook (c); |
c906108c | 506 | |
c906108c SS |
507 | } |
508 | ||
d318976c FN |
509 | /* Tell the user if the language has changed (except first time). */ |
510 | if (current_language != expected_language) | |
c906108c | 511 | { |
d318976c | 512 | if (language_mode == language_mode_auto) |
c906108c | 513 | { |
d318976c | 514 | language_info (1); /* Print what changed. */ |
c906108c | 515 | } |
d318976c | 516 | warned = 0; |
c906108c SS |
517 | } |
518 | ||
d318976c FN |
519 | /* Warn the user if the working language does not match the |
520 | language of the current frame. Only warn the user if we are | |
521 | actually running the program, i.e. there is a stack. */ | |
522 | /* FIXME: This should be cacheing the frame and only running when | |
523 | the frame changes. */ | |
524 | ||
32c1e744 | 525 | if (!target_executing && target_has_stack) |
c906108c | 526 | { |
d318976c FN |
527 | flang = get_frame_language (); |
528 | if (!warned | |
529 | && flang != language_unknown | |
530 | && flang != current_language->la_language) | |
c906108c | 531 | { |
d318976c FN |
532 | printf_filtered ("%s\n", lang_frame_mismatch_warn); |
533 | warned = 1; | |
c906108c | 534 | } |
c906108c | 535 | } |
32c1e744 VP |
536 | |
537 | /* Set things up for this function to be compete later, once the | |
538 | execution has completed, if we are doing an execution command, | |
539 | otherwise, just go ahead and finish. */ | |
540 | if (target_can_async_p () && target_executing) | |
541 | { | |
542 | arg1 = | |
543 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
544 | arg2 = | |
545 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
546 | arg1->next = arg2; | |
547 | arg2->next = NULL; | |
548 | arg1->data.longint = time_at_cmd_start; | |
549 | #ifdef HAVE_SBRK | |
550 | arg2->data.longint = space_at_cmd_start; | |
551 | #endif | |
552 | add_continuation (command_line_handler_continuation, arg1); | |
553 | } | |
c906108c SS |
554 | } |
555 | ||
d318976c FN |
556 | /* Read commands from `instream' and execute them |
557 | until end of file or error reading instream. */ | |
c906108c | 558 | |
d318976c FN |
559 | void |
560 | command_loop (void) | |
c906108c | 561 | { |
d318976c FN |
562 | struct cleanup *old_chain; |
563 | char *command; | |
564 | int stdin_is_tty = ISATTY (stdin); | |
565 | long time_at_cmd_start; | |
566 | #ifdef HAVE_SBRK | |
567 | long space_at_cmd_start = 0; | |
568 | #endif | |
569 | extern int display_time; | |
570 | extern int display_space; | |
c5aa993b | 571 | |
d318976c FN |
572 | while (instream && !feof (instream)) |
573 | { | |
d318976c FN |
574 | if (window_hook && instream == stdin) |
575 | (*window_hook) (instream, get_prompt ()); | |
c906108c | 576 | |
d318976c FN |
577 | quit_flag = 0; |
578 | if (instream == stdin && stdin_is_tty) | |
579 | reinitialize_more_filter (); | |
580 | old_chain = make_cleanup (null_cleanup, 0); | |
c906108c | 581 | |
d318976c FN |
582 | /* Get a command-line. This calls the readline package. */ |
583 | command = command_line_input (instream == stdin ? | |
584 | get_prompt () : (char *) NULL, | |
585 | instream == stdin, "prompt"); | |
d318976c FN |
586 | if (command == 0) |
587 | return; | |
c906108c | 588 | |
d318976c | 589 | time_at_cmd_start = get_run_time (); |
c906108c | 590 | |
d318976c | 591 | if (display_space) |
9e0b60a8 | 592 | { |
d318976c | 593 | #ifdef HAVE_SBRK |
d318976c | 594 | char *lim = (char *) sbrk (0); |
6dd77b81 | 595 | space_at_cmd_start = lim - lim_at_start; |
9e0b60a8 | 596 | #endif |
d318976c | 597 | } |
9e0b60a8 | 598 | |
d318976c FN |
599 | execute_command (command, instream == stdin); |
600 | /* Do any commands attached to breakpoint we stopped at. */ | |
601 | bpstat_do_actions (&stop_bpstat); | |
602 | do_cleanups (old_chain); | |
9e0b60a8 | 603 | |
d318976c | 604 | if (display_time) |
9e0b60a8 | 605 | { |
d318976c | 606 | long cmd_time = get_run_time () - time_at_cmd_start; |
9e0b60a8 | 607 | |
a3f17187 | 608 | printf_unfiltered (_("Command execution time: %ld.%06ld\n"), |
d318976c | 609 | cmd_time / 1000000, cmd_time % 1000000); |
9e0b60a8 | 610 | } |
9e0b60a8 | 611 | |
d318976c | 612 | if (display_space) |
9e0b60a8 | 613 | { |
d318976c | 614 | #ifdef HAVE_SBRK |
d318976c | 615 | char *lim = (char *) sbrk (0); |
6dd77b81 | 616 | long space_now = lim - lim_at_start; |
d318976c FN |
617 | long space_diff = space_now - space_at_cmd_start; |
618 | ||
57ee890f | 619 | printf_unfiltered (_("Space used: %ld (%s%ld for this command)\n"), |
d318976c | 620 | space_now, |
57ee890f | 621 | (space_diff >= 0 ? "+" : ""), |
d318976c FN |
622 | space_diff); |
623 | #endif | |
9e0b60a8 | 624 | } |
9e0b60a8 | 625 | } |
9e0b60a8 | 626 | } |
d318976c FN |
627 | \f |
628 | /* Commands call this if they do not want to be repeated by null lines. */ | |
9e0b60a8 | 629 | |
d318976c FN |
630 | void |
631 | dont_repeat (void) | |
9e0b60a8 | 632 | { |
d318976c FN |
633 | if (server_command) |
634 | return; | |
9e0b60a8 | 635 | |
d318976c FN |
636 | /* If we aren't reading from standard input, we are saving the last |
637 | thing read from stdin in line and don't want to delete it. Null lines | |
638 | won't repeat here in any case. */ | |
639 | if (instream == stdin) | |
640 | *line = 0; | |
9e0b60a8 | 641 | } |
d318976c FN |
642 | \f |
643 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 644 | |
d318976c FN |
645 | It prints PROMPT_ARG once at the start. |
646 | Action is compatible with "readline", e.g. space for the result is | |
647 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 648 | |
d318976c FN |
649 | A NULL return means end of file. */ |
650 | char * | |
651 | gdb_readline (char *prompt_arg) | |
9e0b60a8 | 652 | { |
d318976c FN |
653 | int c; |
654 | char *result; | |
655 | int input_index = 0; | |
656 | int result_size = 80; | |
9e0b60a8 | 657 | |
d318976c | 658 | if (prompt_arg) |
9e0b60a8 | 659 | { |
d318976c FN |
660 | /* Don't use a _filtered function here. It causes the assumed |
661 | character position to be off, since the newline we read from | |
662 | the user is not accounted for. */ | |
663 | fputs_unfiltered (prompt_arg, gdb_stdout); | |
9e0b60a8 JM |
664 | gdb_flush (gdb_stdout); |
665 | } | |
666 | ||
d318976c | 667 | result = (char *) xmalloc (result_size); |
9e0b60a8 JM |
668 | |
669 | while (1) | |
670 | { | |
d318976c FN |
671 | /* Read from stdin if we are executing a user defined command. |
672 | This is the right thing for prompt_for_continue, at least. */ | |
673 | c = fgetc (instream ? instream : stdin); | |
9e0b60a8 | 674 | |
d318976c | 675 | if (c == EOF) |
9e0b60a8 | 676 | { |
d318976c FN |
677 | if (input_index > 0) |
678 | /* The last line does not end with a newline. Return it, and | |
679 | if we are called again fgetc will still return EOF and | |
680 | we'll return NULL then. */ | |
9e0b60a8 | 681 | break; |
b8c9b27d | 682 | xfree (result); |
d318976c | 683 | return NULL; |
9e0b60a8 | 684 | } |
c5aa993b | 685 | |
d318976c | 686 | if (c == '\n') |
9e0b60a8 | 687 | { |
d318976c FN |
688 | if (input_index > 0 && result[input_index - 1] == '\r') |
689 | input_index--; | |
690 | break; | |
9e0b60a8 | 691 | } |
9e0b60a8 | 692 | |
d318976c FN |
693 | result[input_index++] = c; |
694 | while (input_index >= result_size) | |
9e0b60a8 | 695 | { |
d318976c FN |
696 | result_size *= 2; |
697 | result = (char *) xrealloc (result, result_size); | |
9e0b60a8 | 698 | } |
9e0b60a8 JM |
699 | } |
700 | ||
d318976c FN |
701 | result[input_index++] = '\0'; |
702 | return result; | |
9e0b60a8 JM |
703 | } |
704 | ||
d318976c FN |
705 | /* Variables which control command line editing and history |
706 | substitution. These variables are given default values at the end | |
707 | of this file. */ | |
708 | static int command_editing_p; | |
920d2a44 | 709 | |
d318976c FN |
710 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
711 | gdb to use the event loop as the default command loop and we merge | |
712 | event-top.c into this file, top.c */ | |
920d2a44 | 713 | |
d318976c | 714 | /* static */ int history_expansion_p; |
920d2a44 | 715 | |
d318976c | 716 | static int write_history_p; |
920d2a44 AC |
717 | static void |
718 | show_write_history_p (struct ui_file *file, int from_tty, | |
719 | struct cmd_list_element *c, const char *value) | |
720 | { | |
721 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
722 | value); | |
723 | } | |
724 | ||
d318976c | 725 | static int history_size; |
920d2a44 AC |
726 | static void |
727 | show_history_size (struct ui_file *file, int from_tty, | |
728 | struct cmd_list_element *c, const char *value) | |
729 | { | |
730 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
731 | value); | |
732 | } | |
733 | ||
d318976c | 734 | static char *history_filename; |
920d2a44 AC |
735 | static void |
736 | show_history_filename (struct ui_file *file, int from_tty, | |
737 | struct cmd_list_element *c, const char *value) | |
738 | { | |
739 | fprintf_filtered (file, _("\ | |
740 | The filename in which to record the command history is \"%s\".\n"), | |
741 | value); | |
742 | } | |
9e0b60a8 | 743 | |
b4f5539f | 744 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 745 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
746 | a single gdb invocation. At the ordinary top-level prompt we might |
747 | be using the async readline. That means we can't use | |
748 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
749 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
750 | `define'), gdb wants a synchronous response. |
751 | ||
752 | We used to call readline() directly, running it in synchronous | |
753 | mode. But mixing modes this way is not supported, and as of | |
754 | readline 5.x it no longer works; the arrow keys come unbound during | |
755 | the synchronous call. So we make a nested call into the event | |
756 | loop. That's what gdb_readline_wrapper is for. */ | |
757 | ||
758 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
759 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
760 | the user types Control-D for EOF. */ | |
761 | static int gdb_readline_wrapper_done; | |
762 | ||
763 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
764 | is seen. */ | |
765 | static char *gdb_readline_wrapper_result; | |
766 | ||
767 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
768 | to be called after the newline is processed (which will redisplay | |
769 | the prompt). But in gdb_readline_wrapper we will not get a new | |
770 | prompt until the next call, or until we return to the event loop. | |
771 | So we disable this hook around the newline and restore it before we | |
772 | return. */ | |
773 | static void (*saved_after_char_processing_hook) (void); | |
774 | ||
775 | /* This function is called when readline has seen a complete line of | |
776 | text. */ | |
777 | ||
778 | static void | |
779 | gdb_readline_wrapper_line (char *line) | |
780 | { | |
781 | gdb_assert (!gdb_readline_wrapper_done); | |
782 | gdb_readline_wrapper_result = line; | |
783 | gdb_readline_wrapper_done = 1; | |
784 | ||
785 | /* Prevent operate-and-get-next from acting too early. */ | |
786 | saved_after_char_processing_hook = after_char_processing_hook; | |
787 | after_char_processing_hook = NULL; | |
1b05479a DJ |
788 | |
789 | /* Prevent parts of the prompt from being redisplayed if annotations | |
790 | are enabled, and readline's state getting out of sync. */ | |
791 | if (async_command_editing_p) | |
792 | rl_callback_handler_remove (); | |
2e03ee74 DJ |
793 | } |
794 | ||
795 | struct gdb_readline_wrapper_cleanup | |
796 | { | |
797 | void (*handler_orig) (char *); | |
2e03ee74 DJ |
798 | int already_prompted_orig; |
799 | }; | |
800 | ||
801 | static void | |
802 | gdb_readline_wrapper_cleanup (void *arg) | |
803 | { | |
804 | struct gdb_readline_wrapper_cleanup *cleanup = arg; | |
805 | ||
2e03ee74 | 806 | rl_already_prompted = cleanup->already_prompted_orig; |
2e03ee74 DJ |
807 | |
808 | gdb_assert (input_handler == gdb_readline_wrapper_line); | |
809 | input_handler = cleanup->handler_orig; | |
810 | gdb_readline_wrapper_result = NULL; | |
811 | gdb_readline_wrapper_done = 0; | |
812 | ||
813 | after_char_processing_hook = saved_after_char_processing_hook; | |
814 | saved_after_char_processing_hook = NULL; | |
815 | ||
816 | xfree (cleanup); | |
817 | } | |
818 | ||
b4f5539f TT |
819 | char * |
820 | gdb_readline_wrapper (char *prompt) | |
821 | { | |
2e03ee74 DJ |
822 | struct cleanup *back_to; |
823 | struct gdb_readline_wrapper_cleanup *cleanup; | |
824 | char *retval; | |
825 | ||
826 | cleanup = xmalloc (sizeof (*cleanup)); | |
827 | cleanup->handler_orig = input_handler; | |
828 | input_handler = gdb_readline_wrapper_line; | |
829 | ||
2e03ee74 DJ |
830 | cleanup->already_prompted_orig = rl_already_prompted; |
831 | ||
832 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); | |
833 | ||
834 | /* Display our prompt and prevent double prompt display. */ | |
1b05479a | 835 | display_gdb_prompt (prompt); |
2e03ee74 DJ |
836 | rl_already_prompted = 1; |
837 | ||
362646f5 | 838 | if (after_char_processing_hook) |
2e03ee74 DJ |
839 | (*after_char_processing_hook) (); |
840 | gdb_assert (after_char_processing_hook == NULL); | |
841 | ||
842 | /* gdb_do_one_event argument is unused. */ | |
843 | while (gdb_do_one_event (NULL) >= 0) | |
844 | if (gdb_readline_wrapper_done) | |
845 | break; | |
b4f5539f | 846 | |
2e03ee74 DJ |
847 | retval = gdb_readline_wrapper_result; |
848 | do_cleanups (back_to); | |
849 | return retval; | |
b4f5539f TT |
850 | } |
851 | ||
9e0b60a8 | 852 | \f |
d318976c FN |
853 | #ifdef STOP_SIGNAL |
854 | static void | |
855 | stop_sig (int signo) | |
9e0b60a8 | 856 | { |
d318976c FN |
857 | #if STOP_SIGNAL == SIGTSTP |
858 | signal (SIGTSTP, SIG_DFL); | |
46711df8 MK |
859 | #if HAVE_SIGPROCMASK |
860 | { | |
861 | sigset_t zero; | |
862 | ||
863 | sigemptyset (&zero); | |
864 | sigprocmask (SIG_SETMASK, &zero, 0); | |
865 | } | |
866 | #elif HAVE_SIGSETMASK | |
d318976c | 867 | sigsetmask (0); |
46711df8 | 868 | #endif |
d318976c FN |
869 | kill (getpid (), SIGTSTP); |
870 | signal (SIGTSTP, stop_sig); | |
871 | #else | |
872 | signal (STOP_SIGNAL, stop_sig); | |
873 | #endif | |
874 | printf_unfiltered ("%s", get_prompt ()); | |
875 | gdb_flush (gdb_stdout); | |
9e0b60a8 | 876 | |
d318976c FN |
877 | /* Forget about any previous command -- null line now will do nothing. */ |
878 | dont_repeat (); | |
9e0b60a8 | 879 | } |
d318976c | 880 | #endif /* STOP_SIGNAL */ |
9e0b60a8 | 881 | |
d318976c | 882 | /* Initialize signal handlers. */ |
64cdedad EZ |
883 | static void |
884 | float_handler (int signo) | |
885 | { | |
886 | /* This message is based on ANSI C, section 4.7. Note that integer | |
887 | divide by zero causes this, so "float" is a misnomer. */ | |
888 | signal (SIGFPE, float_handler); | |
8a3fe4f8 | 889 | error (_("Erroneous arithmetic operation.")); |
64cdedad EZ |
890 | } |
891 | ||
9e0b60a8 | 892 | static void |
d318976c | 893 | do_nothing (int signo) |
9e0b60a8 | 894 | { |
d318976c FN |
895 | /* Under System V the default disposition of a signal is reinstated after |
896 | the signal is caught and delivered to an application process. On such | |
897 | systems one must restore the replacement signal handler if one wishes | |
898 | to continue handling the signal in one's program. On BSD systems this | |
899 | is not needed but it is harmless, and it simplifies the code to just do | |
900 | it unconditionally. */ | |
901 | signal (signo, do_nothing); | |
9e0b60a8 JM |
902 | } |
903 | ||
467d8519 TT |
904 | /* The current saved history number from operate-and-get-next. |
905 | This is -1 if not valid. */ | |
906 | static int operate_saved_history = -1; | |
907 | ||
908 | /* This is put on the appropriate hook and helps operate-and-get-next | |
909 | do its work. */ | |
b9362cc7 | 910 | static void |
5ae5f592 | 911 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
912 | { |
913 | int delta = where_history () - operate_saved_history; | |
914 | /* The `key' argument to rl_get_previous_history is ignored. */ | |
915 | rl_get_previous_history (delta, 0); | |
916 | operate_saved_history = -1; | |
917 | ||
918 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 919 | rl_redisplay (); |
467d8519 TT |
920 | |
921 | after_char_processing_hook = NULL; | |
922 | rl_pre_input_hook = NULL; | |
923 | } | |
924 | ||
925 | /* This is a gdb-local readline command handler. It accepts the | |
926 | current command line (like RET does) and, if this command was taken | |
927 | from the history, arranges for the next command in the history to | |
928 | appear on the command line when the prompt returns. | |
929 | We ignore the arguments. */ | |
930 | static int | |
931 | gdb_rl_operate_and_get_next (int count, int key) | |
932 | { | |
b5686e99 MK |
933 | int where; |
934 | ||
362646f5 AC |
935 | /* Use the async hook. */ |
936 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 937 | |
b5686e99 MK |
938 | /* Find the current line, and find the next line to use. */ |
939 | where = where_history(); | |
940 | ||
941 | /* FIXME: kettenis/20020817: max_input_history is renamed into | |
942 | history_max_entries in readline-4.2. When we do a new readline | |
943 | import, we should probably change it here too, even though | |
944 | readline maintains backwards compatibility for now by still | |
945 | defining max_input_history. */ | |
946 | if ((history_is_stifled () && (history_length >= max_input_history)) || | |
947 | (where >= history_length - 1)) | |
948 | operate_saved_history = where; | |
949 | else | |
950 | operate_saved_history = where + 1; | |
951 | ||
467d8519 TT |
952 | return rl_newline (1, key); |
953 | } | |
954 | \f | |
d318976c FN |
955 | /* Read one line from the command input stream `instream' |
956 | into the local static buffer `linebuffer' (whose current length | |
957 | is `linelength'). | |
958 | The buffer is made bigger as necessary. | |
959 | Returns the address of the start of the line. | |
9e0b60a8 | 960 | |
d318976c | 961 | NULL is returned for end of file. |
9e0b60a8 | 962 | |
d318976c FN |
963 | *If* the instream == stdin & stdin is a terminal, the line read |
964 | is copied into the file line saver (global var char *line, | |
965 | length linesize) so that it can be duplicated. | |
9e0b60a8 | 966 | |
d318976c FN |
967 | This routine either uses fancy command line editing or |
968 | simple input as the user has requested. */ | |
10689f25 | 969 | |
d318976c FN |
970 | char * |
971 | command_line_input (char *prompt_arg, int repeat, char *annotation_suffix) | |
9e0b60a8 | 972 | { |
d318976c FN |
973 | static char *linebuffer = 0; |
974 | static unsigned linelength = 0; | |
52f0bd74 | 975 | char *p; |
d318976c FN |
976 | char *p1; |
977 | char *rl; | |
978 | char *local_prompt = prompt_arg; | |
979 | char *nline; | |
980 | char got_eof = 0; | |
981 | ||
982 | /* The annotation suffix must be non-NULL. */ | |
983 | if (annotation_suffix == NULL) | |
984 | annotation_suffix = ""; | |
9e0b60a8 | 985 | |
d318976c FN |
986 | if (annotation_level > 1 && instream == stdin) |
987 | { | |
988 | local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg)) | |
989 | + strlen (annotation_suffix) + 40); | |
990 | if (prompt_arg == NULL) | |
991 | local_prompt[0] = '\0'; | |
992 | else | |
993 | strcpy (local_prompt, prompt_arg); | |
994 | strcat (local_prompt, "\n\032\032"); | |
995 | strcat (local_prompt, annotation_suffix); | |
996 | strcat (local_prompt, "\n"); | |
997 | } | |
9e0b60a8 | 998 | |
d318976c | 999 | if (linebuffer == 0) |
9e0b60a8 | 1000 | { |
d318976c FN |
1001 | linelength = 80; |
1002 | linebuffer = (char *) xmalloc (linelength); | |
9e0b60a8 | 1003 | } |
9e0b60a8 | 1004 | |
d318976c | 1005 | p = linebuffer; |
9e0b60a8 | 1006 | |
d318976c FN |
1007 | /* Control-C quits instantly if typed while in this loop |
1008 | since it should not wait until the user types a newline. */ | |
1009 | immediate_quit++; | |
1010 | #ifdef STOP_SIGNAL | |
1011 | if (job_control) | |
362646f5 | 1012 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
1013 | #endif |
1014 | ||
1015 | while (1) | |
9e0b60a8 | 1016 | { |
d318976c FN |
1017 | /* Make sure that all output has been output. Some machines may let |
1018 | you get away with leaving out some of the gdb_flush, but not all. */ | |
1019 | wrap_here (""); | |
1020 | gdb_flush (gdb_stdout); | |
1021 | gdb_flush (gdb_stderr); | |
1022 | ||
1023 | if (source_file_name != NULL) | |
637537d0 | 1024 | ++source_line_number; |
d318976c FN |
1025 | |
1026 | if (annotation_level > 1 && instream == stdin) | |
1027 | { | |
306d9ac5 DC |
1028 | puts_unfiltered ("\n\032\032pre-"); |
1029 | puts_unfiltered (annotation_suffix); | |
1030 | puts_unfiltered ("\n"); | |
d318976c FN |
1031 | } |
1032 | ||
1033 | /* Don't use fancy stuff if not talking to stdin. */ | |
698ba934 | 1034 | if (deprecated_readline_hook && input_from_terminal_p ()) |
d318976c | 1035 | { |
9a4105ab | 1036 | rl = (*deprecated_readline_hook) (local_prompt); |
d318976c | 1037 | } |
698ba934 | 1038 | else if (command_editing_p && input_from_terminal_p ()) |
d318976c | 1039 | { |
b4f5539f | 1040 | rl = gdb_readline_wrapper (local_prompt); |
d318976c | 1041 | } |
9e0b60a8 | 1042 | else |
d318976c FN |
1043 | { |
1044 | rl = gdb_readline (local_prompt); | |
1045 | } | |
9e0b60a8 | 1046 | |
d318976c FN |
1047 | if (annotation_level > 1 && instream == stdin) |
1048 | { | |
306d9ac5 DC |
1049 | puts_unfiltered ("\n\032\032post-"); |
1050 | puts_unfiltered (annotation_suffix); | |
1051 | puts_unfiltered ("\n"); | |
d318976c | 1052 | } |
9e0b60a8 | 1053 | |
d318976c | 1054 | if (!rl || rl == (char *) EOF) |
9e0b60a8 | 1055 | { |
d318976c FN |
1056 | got_eof = 1; |
1057 | break; | |
9e0b60a8 | 1058 | } |
d318976c FN |
1059 | if (strlen (rl) + 1 + (p - linebuffer) > linelength) |
1060 | { | |
1061 | linelength = strlen (rl) + 1 + (p - linebuffer); | |
1062 | nline = (char *) xrealloc (linebuffer, linelength); | |
1063 | p += nline - linebuffer; | |
1064 | linebuffer = nline; | |
1065 | } | |
1066 | p1 = rl; | |
1067 | /* Copy line. Don't copy null at end. (Leaves line alone | |
1068 | if this was just a newline) */ | |
1069 | while (*p1) | |
1070 | *p++ = *p1++; | |
9e0b60a8 | 1071 | |
b8c9b27d | 1072 | xfree (rl); /* Allocated in readline. */ |
9e0b60a8 | 1073 | |
d318976c FN |
1074 | if (p == linebuffer || *(p - 1) != '\\') |
1075 | break; | |
9e0b60a8 | 1076 | |
d318976c FN |
1077 | p--; /* Put on top of '\'. */ |
1078 | local_prompt = (char *) 0; | |
1079 | } | |
9e0b60a8 | 1080 | |
d318976c FN |
1081 | #ifdef STOP_SIGNAL |
1082 | if (job_control) | |
1083 | signal (STOP_SIGNAL, SIG_DFL); | |
1084 | #endif | |
1085 | immediate_quit--; | |
9e0b60a8 | 1086 | |
d318976c FN |
1087 | if (got_eof) |
1088 | return NULL; | |
9e0b60a8 | 1089 | |
d318976c FN |
1090 | #define SERVER_COMMAND_LENGTH 7 |
1091 | server_command = | |
1092 | (p - linebuffer > SERVER_COMMAND_LENGTH) | |
bf896cb0 | 1093 | && strncmp (linebuffer, "server ", SERVER_COMMAND_LENGTH) == 0; |
d318976c | 1094 | if (server_command) |
9e0b60a8 | 1095 | { |
d318976c FN |
1096 | /* Note that we don't set `line'. Between this and the check in |
1097 | dont_repeat, this insures that repeating will still do the | |
1098 | right thing. */ | |
1099 | *p = '\0'; | |
1100 | return linebuffer + SERVER_COMMAND_LENGTH; | |
9e0b60a8 | 1101 | } |
9e0b60a8 | 1102 | |
d318976c FN |
1103 | /* Do history expansion if that is wished. */ |
1104 | if (history_expansion_p && instream == stdin | |
1105 | && ISATTY (instream)) | |
1106 | { | |
1107 | char *history_value; | |
1108 | int expanded; | |
9e0b60a8 | 1109 | |
d318976c FN |
1110 | *p = '\0'; /* Insert null now. */ |
1111 | expanded = history_expand (linebuffer, &history_value); | |
1112 | if (expanded) | |
1113 | { | |
1114 | /* Print the changes. */ | |
1115 | printf_unfiltered ("%s\n", history_value); | |
9e0b60a8 | 1116 | |
d318976c FN |
1117 | /* If there was an error, call this function again. */ |
1118 | if (expanded < 0) | |
1119 | { | |
b8c9b27d | 1120 | xfree (history_value); |
d318976c FN |
1121 | return command_line_input (prompt_arg, repeat, annotation_suffix); |
1122 | } | |
1123 | if (strlen (history_value) > linelength) | |
1124 | { | |
1125 | linelength = strlen (history_value) + 1; | |
1126 | linebuffer = (char *) xrealloc (linebuffer, linelength); | |
1127 | } | |
1128 | strcpy (linebuffer, history_value); | |
1129 | p = linebuffer + strlen (linebuffer); | |
d318976c | 1130 | } |
91d2803c | 1131 | xfree (history_value); |
d318976c | 1132 | } |
9e0b60a8 | 1133 | |
d318976c FN |
1134 | /* If we just got an empty line, and that is supposed |
1135 | to repeat the previous command, return the value in the | |
1136 | global buffer. */ | |
1137 | if (repeat && p == linebuffer) | |
1138 | return line; | |
1139 | for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++); | |
1140 | if (repeat && !*p1) | |
1141 | return line; | |
9e0b60a8 | 1142 | |
d318976c | 1143 | *p = 0; |
9e0b60a8 | 1144 | |
d318976c FN |
1145 | /* Add line to history if appropriate. */ |
1146 | if (instream == stdin | |
1147 | && ISATTY (stdin) && *linebuffer) | |
1148 | add_history (linebuffer); | |
9e0b60a8 | 1149 | |
d318976c FN |
1150 | /* Note: lines consisting solely of comments are added to the command |
1151 | history. This is useful when you type a command, and then | |
1152 | realize you don't want to execute it quite yet. You can comment | |
1153 | out the command and then later fetch it from the value history | |
1154 | and remove the '#'. The kill ring is probably better, but some | |
1155 | people are in the habit of commenting things out. */ | |
1156 | if (*p1 == '#') | |
1157 | *p1 = '\0'; /* Found a comment. */ | |
9e0b60a8 | 1158 | |
d318976c FN |
1159 | /* Save into global buffer if appropriate. */ |
1160 | if (repeat) | |
1161 | { | |
1162 | if (linelength > linesize) | |
1163 | { | |
1164 | line = xrealloc (line, linelength); | |
1165 | linesize = linelength; | |
1166 | } | |
1167 | strcpy (line, linebuffer); | |
1168 | return line; | |
1169 | } | |
9e0b60a8 | 1170 | |
d318976c | 1171 | return linebuffer; |
9e0b60a8 JM |
1172 | } |
1173 | \f | |
1174 | /* Print the GDB banner. */ | |
1175 | void | |
fba45db2 | 1176 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1177 | { |
1178 | /* From GNU coding standards, first line is meant to be easy for a | |
1179 | program to parse, and is just canonical program name and version | |
1180 | number, which starts after last space. */ | |
1181 | ||
1182 | fprintf_filtered (stream, "GNU gdb %s\n", version); | |
1183 | ||
1184 | /* Second line is a copyright notice. */ | |
1185 | ||
636265b6 | 1186 | fprintf_filtered (stream, "Copyright (C) 2008 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1187 | |
1188 | /* Following the copyright is a brief statement that the program is | |
1189 | free software, that users are free to copy and change it on | |
1190 | certain conditions, that it is covered by the GNU GPL, and that | |
1191 | there is no warranty. */ | |
1192 | ||
1193 | fprintf_filtered (stream, "\ | |
b8533aec DJ |
1194 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\n\ |
1195 | This is free software: you are free to change and redistribute it.\n\ | |
0b93d57c | 1196 | There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\ |
b8533aec | 1197 | and \"show warranty\" for details.\n"); |
9e0b60a8 JM |
1198 | |
1199 | /* After the required info we print the configuration information. */ | |
1200 | ||
1201 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1202 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 JM |
1203 | { |
1204 | fprintf_filtered (stream, "--host=%s --target=%s", host_name, target_name); | |
1205 | } | |
1206 | else | |
1207 | { | |
1208 | fprintf_filtered (stream, "%s", host_name); | |
1209 | } | |
1210 | fprintf_filtered (stream, "\"."); | |
1211 | } | |
9e0b60a8 JM |
1212 | \f |
1213 | /* get_prompt: access method for the GDB prompt string. */ | |
1214 | ||
9e0b60a8 | 1215 | char * |
fba45db2 | 1216 | get_prompt (void) |
9e0b60a8 | 1217 | { |
362646f5 | 1218 | return PROMPT (0); |
9e0b60a8 JM |
1219 | } |
1220 | ||
1221 | void | |
fba45db2 | 1222 | set_prompt (char *s) |
9e0b60a8 JM |
1223 | { |
1224 | /* ??rehrauer: I don't know why this fails, since it looks as though | |
1225 | assignments to prompt are wrapped in calls to savestring... | |
c5aa993b | 1226 | if (prompt != NULL) |
b8c9b27d | 1227 | xfree (prompt); |
c5aa993b | 1228 | */ |
362646f5 | 1229 | PROMPT (0) = savestring (s, strlen (s)); |
9e0b60a8 | 1230 | } |
9e0b60a8 | 1231 | \f |
c5aa993b | 1232 | |
9e0b60a8 JM |
1233 | /* If necessary, make the user confirm that we should quit. Return |
1234 | non-zero if we should quit, zero if we shouldn't. */ | |
1235 | ||
1236 | int | |
fba45db2 | 1237 | quit_confirm (void) |
9e0b60a8 | 1238 | { |
39f77062 | 1239 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
9e0b60a8 JM |
1240 | { |
1241 | char *s; | |
1242 | ||
1243 | /* This is something of a hack. But there's no reliable way to | |
c5aa993b JM |
1244 | see if a GUI is running. The `use_windows' variable doesn't |
1245 | cut it. */ | |
9a4105ab | 1246 | if (deprecated_init_ui_hook) |
9e0b60a8 JM |
1247 | s = "A debugging session is active.\nDo you still want to close the debugger?"; |
1248 | else if (attach_flag) | |
1249 | s = "The program is running. Quit anyway (and detach it)? "; | |
1250 | else | |
b21991b0 | 1251 | s = "The program is running. Quit anyway (and kill it)? "; |
9e0b60a8 | 1252 | |
306d9ac5 | 1253 | if (!query ("%s", s)) |
9e0b60a8 JM |
1254 | return 0; |
1255 | } | |
1256 | ||
1257 | return 1; | |
1258 | } | |
1259 | ||
b0abbc58 | 1260 | /* Helper routine for quit_force that requires error handling. */ |
9e0b60a8 | 1261 | |
b0abbc58 | 1262 | struct qt_args |
9e0b60a8 | 1263 | { |
b0abbc58 JJ |
1264 | char *args; |
1265 | int from_tty; | |
1266 | }; | |
9e0b60a8 | 1267 | |
b0abbc58 JJ |
1268 | static int |
1269 | quit_target (void *arg) | |
1270 | { | |
1271 | struct qt_args *qt = (struct qt_args *)arg; | |
9e0b60a8 | 1272 | |
39f77062 | 1273 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
9e0b60a8 JM |
1274 | { |
1275 | if (attach_flag) | |
b0abbc58 | 1276 | target_detach (qt->args, qt->from_tty); |
9e0b60a8 | 1277 | else |
b0abbc58 | 1278 | target_kill (); |
9e0b60a8 JM |
1279 | } |
1280 | ||
1281 | /* UDI wants this, to kill the TIP. */ | |
f1c07ab0 | 1282 | target_close (¤t_target, 1); |
9e0b60a8 JM |
1283 | |
1284 | /* Save the history information if it is appropriate to do so. */ | |
1285 | if (write_history_p && history_filename) | |
1286 | write_history (history_filename); | |
1287 | ||
c5aa993b | 1288 | do_final_cleanups (ALL_CLEANUPS); /* Do any final cleanups before exiting */ |
9e0b60a8 | 1289 | |
b0abbc58 JJ |
1290 | return 0; |
1291 | } | |
1292 | ||
1293 | /* Quit without asking for confirmation. */ | |
1294 | ||
1295 | void | |
1296 | quit_force (char *args, int from_tty) | |
1297 | { | |
1298 | int exit_code = 0; | |
365c70b1 | 1299 | struct qt_args qt; |
b0abbc58 JJ |
1300 | |
1301 | /* An optional expression may be used to cause gdb to terminate with the | |
1302 | value of that expression. */ | |
1303 | if (args) | |
1304 | { | |
1305 | struct value *val = parse_and_eval (args); | |
1306 | ||
1307 | exit_code = (int) value_as_long (val); | |
1308 | } | |
4b0ad762 AS |
1309 | else if (return_child_result) |
1310 | exit_code = return_child_result_value; | |
b0abbc58 | 1311 | |
365c70b1 JJ |
1312 | qt.args = args; |
1313 | qt.from_tty = from_tty; | |
1314 | ||
b0abbc58 | 1315 | /* We want to handle any quit errors and exit regardless. */ |
365c70b1 | 1316 | catch_errors (quit_target, &qt, |
b0abbc58 JJ |
1317 | "Quitting: ", RETURN_MASK_ALL); |
1318 | ||
9e0b60a8 JM |
1319 | exit (exit_code); |
1320 | } | |
1321 | ||
698ba934 DJ |
1322 | /* Returns whether GDB is running on a terminal and input is |
1323 | currently coming from that terminal. */ | |
9e0b60a8 JM |
1324 | |
1325 | int | |
fba45db2 | 1326 | input_from_terminal_p (void) |
9e0b60a8 | 1327 | { |
698ba934 DJ |
1328 | if (gdb_has_a_terminal () && instream == stdin) |
1329 | return 1; | |
1330 | ||
1331 | /* If INSTREAM is unset, and we are not in a user command, we | |
1332 | must be in Insight. That's like having a terminal, for our | |
1333 | purposes. */ | |
1334 | if (instream == NULL && !in_user_command) | |
1335 | return 1; | |
1336 | ||
1337 | return 0; | |
9e0b60a8 JM |
1338 | } |
1339 | \f | |
9e0b60a8 | 1340 | static void |
fba45db2 | 1341 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1342 | { |
c5aa993b JM |
1343 | *line = 0; /* Can't call dont_repeat here because we're not |
1344 | necessarily reading from stdin. */ | |
9e0b60a8 JM |
1345 | } |
1346 | \f | |
1347 | /* Functions to manipulate command line editing control variables. */ | |
1348 | ||
1349 | /* Number of commands to print in each call to show_commands. */ | |
1350 | #define Hist_print 10 | |
d318976c | 1351 | void |
fba45db2 | 1352 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1353 | { |
1354 | /* Index for history commands. Relative to history_base. */ | |
1355 | int offset; | |
1356 | ||
1357 | /* Number of the history entry which we are planning to display next. | |
1358 | Relative to history_base. */ | |
1359 | static int num = 0; | |
1360 | ||
1361 | /* The first command in the history which doesn't exist (i.e. one more | |
1362 | than the number of the last command). Relative to history_base. */ | |
1363 | int hist_len; | |
1364 | ||
9e0b60a8 JM |
1365 | /* Print out some of the commands from the command history. */ |
1366 | /* First determine the length of the history list. */ | |
1367 | hist_len = history_size; | |
1368 | for (offset = 0; offset < history_size; offset++) | |
1369 | { | |
1370 | if (!history_get (history_base + offset)) | |
1371 | { | |
1372 | hist_len = offset; | |
1373 | break; | |
1374 | } | |
1375 | } | |
1376 | ||
1377 | if (args) | |
1378 | { | |
1379 | if (args[0] == '+' && args[1] == '\0') | |
1380 | /* "info editing +" should print from the stored position. */ | |
1381 | ; | |
1382 | else | |
1383 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1384 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1385 | } |
1386 | /* "show commands" means print the last Hist_print commands. */ | |
1387 | else | |
1388 | { | |
1389 | num = hist_len - Hist_print; | |
1390 | } | |
1391 | ||
1392 | if (num < 0) | |
1393 | num = 0; | |
1394 | ||
1395 | /* If there are at least Hist_print commands, we want to display the last | |
1396 | Hist_print rather than, say, the last 6. */ | |
1397 | if (hist_len - num < Hist_print) | |
1398 | { | |
1399 | num = hist_len - Hist_print; | |
1400 | if (num < 0) | |
1401 | num = 0; | |
1402 | } | |
1403 | ||
1404 | for (offset = num; offset < num + Hist_print && offset < hist_len; offset++) | |
1405 | { | |
1406 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1407 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1408 | } |
1409 | ||
1410 | /* The next command we want to display is the next one that we haven't | |
1411 | displayed yet. */ | |
1412 | num += Hist_print; | |
1413 | ||
1414 | /* If the user repeats this command with return, it should do what | |
1415 | "show commands +" does. This is unnecessary if arg is null, | |
1416 | because "show commands +" is not useful after "show commands". */ | |
1417 | if (from_tty && args) | |
1418 | { | |
1419 | args[0] = '+'; | |
1420 | args[1] = '\0'; | |
1421 | } | |
1422 | } | |
1423 | ||
1424 | /* Called by do_setshow_command. */ | |
9e0b60a8 | 1425 | static void |
fba45db2 | 1426 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1427 | { |
1428 | if (history_size == INT_MAX) | |
1429 | unstifle_history (); | |
1430 | else if (history_size >= 0) | |
1431 | stifle_history (history_size); | |
1432 | else | |
1433 | { | |
1434 | history_size = INT_MAX; | |
8a3fe4f8 | 1435 | error (_("History size must be non-negative")); |
9e0b60a8 JM |
1436 | } |
1437 | } | |
1438 | ||
d318976c | 1439 | void |
fba45db2 | 1440 | set_history (char *args, int from_tty) |
9e0b60a8 | 1441 | { |
a3f17187 | 1442 | printf_unfiltered (_("\"set history\" must be followed by the name of a history subcommand.\n")); |
9e0b60a8 JM |
1443 | help_list (sethistlist, "set history ", -1, gdb_stdout); |
1444 | } | |
1445 | ||
d318976c | 1446 | void |
fba45db2 | 1447 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1448 | { |
1449 | cmd_show_list (showhistlist, from_tty, ""); | |
1450 | } | |
1451 | ||
1452 | int info_verbose = 0; /* Default verbose msgs off */ | |
1453 | ||
1454 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1455 | void |
fba45db2 | 1456 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1457 | { |
1458 | char *cmdname = "verbose"; | |
1459 | struct cmd_list_element *showcmd; | |
1460 | ||
1461 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1462 | ||
1463 | if (info_verbose) | |
1464 | { | |
1465 | c->doc = "Set verbose printing of informational messages."; | |
1466 | showcmd->doc = "Show verbose printing of informational messages."; | |
1467 | } | |
1468 | else | |
1469 | { | |
1470 | c->doc = "Set verbosity."; | |
1471 | showcmd->doc = "Show verbosity."; | |
1472 | } | |
1473 | } | |
1474 | ||
9e0b60a8 JM |
1475 | /* Init the history buffer. Note that we are called after the init file(s) |
1476 | * have been read so that the user can change the history file via his | |
1477 | * .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1478 | * overrides all of this. | |
1479 | */ | |
1480 | ||
1481 | void | |
fba45db2 | 1482 | init_history (void) |
9e0b60a8 JM |
1483 | { |
1484 | char *tmpenv; | |
1485 | ||
1486 | tmpenv = getenv ("HISTSIZE"); | |
1487 | if (tmpenv) | |
1488 | history_size = atoi (tmpenv); | |
1489 | else if (!history_size) | |
1490 | history_size = 256; | |
1491 | ||
1492 | stifle_history (history_size); | |
1493 | ||
1494 | tmpenv = getenv ("GDBHISTFILE"); | |
1495 | if (tmpenv) | |
c5aa993b JM |
1496 | history_filename = savestring (tmpenv, strlen (tmpenv)); |
1497 | else if (!history_filename) | |
1498 | { | |
1499 | /* We include the current directory so that if the user changes | |
1500 | directories the file written will be the same as the one | |
1501 | that was read. */ | |
a0b3c4fd | 1502 | #ifdef __MSDOS__ |
eb2f494a | 1503 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1504 | history_filename = concat (current_directory, "/_gdb_history", |
1505 | (char *)NULL); | |
a0b3c4fd | 1506 | #else |
1754f103 MK |
1507 | history_filename = concat (current_directory, "/.gdb_history", |
1508 | (char *)NULL); | |
a0b3c4fd | 1509 | #endif |
c5aa993b | 1510 | } |
9e0b60a8 JM |
1511 | read_history (history_filename); |
1512 | } | |
1513 | ||
920d2a44 AC |
1514 | static void |
1515 | show_new_async_prompt (struct ui_file *file, int from_tty, | |
1516 | struct cmd_list_element *c, const char *value) | |
1517 | { | |
1518 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1519 | } | |
1520 | ||
1521 | static void | |
1522 | show_async_command_editing_p (struct ui_file *file, int from_tty, | |
1523 | struct cmd_list_element *c, const char *value) | |
1524 | { | |
1525 | fprintf_filtered (file, _("\ | |
1526 | Editing of command lines as they are typed is %s.\n"), | |
1527 | value); | |
1528 | } | |
1529 | ||
1530 | static void | |
1531 | show_annotation_level (struct ui_file *file, int from_tty, | |
1532 | struct cmd_list_element *c, const char *value) | |
1533 | { | |
1534 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1535 | } | |
1536 | ||
1537 | static void | |
1538 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1539 | struct cmd_list_element *c, const char *value) | |
1540 | { | |
1541 | fprintf_filtered (file, _("\ | |
1542 | Notification of completion for asynchronous execution commands is %s.\n"), | |
1543 | value); | |
1544 | } | |
9e0b60a8 | 1545 | static void |
fba45db2 | 1546 | init_main (void) |
9e0b60a8 JM |
1547 | { |
1548 | struct cmd_list_element *c; | |
1549 | ||
362646f5 AC |
1550 | /* initialize the prompt stack to a simple "(gdb) " prompt or to |
1551 | whatever the DEFAULT_PROMPT is. */ | |
1552 | the_prompts.top = 0; | |
1553 | PREFIX (0) = ""; | |
1554 | PROMPT (0) = savestring (DEFAULT_PROMPT, strlen (DEFAULT_PROMPT)); | |
1555 | SUFFIX (0) = ""; | |
1556 | /* Set things up for annotation_level > 1, if the user ever decides | |
1557 | to use it. */ | |
1558 | async_annotation_suffix = "prompt"; | |
1559 | /* Set the variable associated with the setshow prompt command. */ | |
1560 | new_async_prompt = savestring (PROMPT (0), strlen (PROMPT (0))); | |
1561 | ||
1562 | /* If gdb was started with --annotate=2, this is equivalent to the | |
1563 | user entering the command 'set annotate 2' at the gdb prompt, so | |
1564 | we need to do extra processing. */ | |
1565 | if (annotation_level > 1) | |
1566 | set_async_annotation_level (NULL, 0, NULL); | |
9e0b60a8 JM |
1567 | |
1568 | /* Set the important stuff up for command editing. */ | |
1569 | command_editing_p = 1; | |
9e0b60a8 JM |
1570 | history_expansion_p = 0; |
1571 | write_history_p = 0; | |
1572 | ||
1573 | /* Setup important stuff for command line editing. */ | |
38017ce8 | 1574 | rl_completion_entry_function = readline_line_completion_function; |
51065942 | 1575 | rl_completer_word_break_characters = default_word_break_characters (); |
d318976c | 1576 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
9e0b60a8 | 1577 | rl_readline_name = "gdb"; |
7cb3ec5e | 1578 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 1579 | |
467d8519 TT |
1580 | /* The name for this defun comes from Bash, where it originated. |
1581 | 15 is Control-o, the same binding this function has in Bash. */ | |
1582 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
1583 | ||
4d28ad1e AC |
1584 | add_setshow_string_cmd ("prompt", class_support, |
1585 | &new_async_prompt, _("\ | |
1586 | Set gdb's prompt"), _("\ | |
1587 | Show gdb's prompt"), NULL, | |
1588 | set_async_prompt, | |
920d2a44 | 1589 | show_new_async_prompt, |
4d28ad1e | 1590 | &setlist, &showlist); |
9e0b60a8 | 1591 | |
1bedd215 AC |
1592 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
1593 | Don't repeat this command.\n\ | |
9e0b60a8 | 1594 | Primarily used inside of user-defined commands that should not be repeated when\n\ |
1bedd215 | 1595 | hitting return.")); |
9e0b60a8 | 1596 | |
5bf193a2 AC |
1597 | add_setshow_boolean_cmd ("editing", class_support, |
1598 | &async_command_editing_p, _("\ | |
1599 | Set editing of command lines as they are typed."), _("\ | |
1600 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
1601 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
1602 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 AC |
1603 | EMACS-like or VI-like commands like control-P or ESC."), |
1604 | set_async_editing_command, | |
920d2a44 | 1605 | show_async_command_editing_p, |
5bf193a2 AC |
1606 | &setlist, &showlist); |
1607 | ||
1608 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
1609 | Set saving of the history record on exit."), _("\ | |
1610 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 1611 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
1612 | Without an argument, saving is enabled."), |
1613 | NULL, | |
920d2a44 | 1614 | show_write_history_p, |
5bf193a2 | 1615 | &sethistlist, &showhistlist); |
9e0b60a8 | 1616 | |
4d28ad1e AC |
1617 | add_setshow_integer_cmd ("size", no_class, &history_size, _("\ |
1618 | Set the size of the command history,"), _("\ | |
1619 | Show the size of the command history,"), _("\ | |
1620 | ie. the number of previous commands to keep a record of."), | |
1621 | set_history_size_command, | |
920d2a44 | 1622 | show_history_size, |
4d28ad1e AC |
1623 | &sethistlist, &showhistlist); |
1624 | ||
1625 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ | |
1626 | Set the filename in which to record the command history"), _("\ | |
1627 | Show the filename in which to record the command history"), _("\ | |
1628 | (the list of previous commands of which a record is kept)."), | |
1629 | NULL, | |
920d2a44 | 1630 | show_history_filename, |
4d28ad1e | 1631 | &sethistlist, &showhistlist); |
9e0b60a8 | 1632 | |
5bf193a2 AC |
1633 | add_setshow_boolean_cmd ("confirm", class_support, &caution, _("\ |
1634 | Set whether to confirm potentially dangerous operations."), _("\ | |
1635 | Show whether to confirm potentially dangerous operations."), NULL, | |
1636 | NULL, | |
920d2a44 | 1637 | show_caution, |
5bf193a2 | 1638 | &setlist, &showlist); |
9e0b60a8 | 1639 | |
85c07804 AC |
1640 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
1641 | Set annotation_level."), _("\ | |
1642 | Show annotation_level."), _("\ | |
9e0b60a8 | 1643 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 AC |
1644 | 2 == output annotated suitably for use by programs that control GDB."), |
1645 | set_async_annotation_level, | |
920d2a44 | 1646 | show_annotation_level, |
85c07804 | 1647 | &setlist, &showlist); |
362646f5 | 1648 | |
5bf193a2 AC |
1649 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
1650 | &exec_done_display_p, _("\ | |
1651 | Set notification of completion for asynchronous execution commands."), _("\ | |
1652 | Show notification of completion for asynchronous execution commands."), _("\ | |
1653 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
1654 | NULL, | |
920d2a44 | 1655 | show_exec_done_display_p, |
5bf193a2 | 1656 | &setlist, &showlist); |
9e0b60a8 | 1657 | } |
64cdedad EZ |
1658 | |
1659 | void | |
1660 | gdb_init (char *argv0) | |
1661 | { | |
1662 | if (pre_init_ui_hook) | |
1663 | pre_init_ui_hook (); | |
1664 | ||
1665 | /* Run the init function of each source file */ | |
1666 | ||
1667 | getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); | |
1668 | current_directory = gdb_dirbuf; | |
1669 | ||
1670 | #ifdef __MSDOS__ | |
1671 | /* Make sure we return to the original directory upon exit, come | |
1672 | what may, since the OS doesn't do that for us. */ | |
1673 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
1674 | #endif | |
1675 | ||
1676 | init_cmd_lists (); /* This needs to be done first */ | |
1677 | initialize_targets (); /* Setup target_terminal macros for utils.c */ | |
1678 | initialize_utils (); /* Make errors and warnings possible */ | |
1679 | initialize_all_files (); | |
1680 | initialize_current_architecture (); | |
1681 | init_cli_cmds(); | |
1682 | init_main (); /* But that omits this file! Do it now */ | |
1683 | ||
0ea3f30e DJ |
1684 | initialize_stdin_serial (); |
1685 | ||
362646f5 | 1686 | async_init_signals (); |
64cdedad EZ |
1687 | |
1688 | /* We need a default language for parsing expressions, so simple things like | |
1689 | "set width 0" won't fail if no language is explicitly set in a config file | |
1690 | or implicitly set by reading an executable during startup. */ | |
1691 | set_language (language_c); | |
1692 | expected_language = current_language; /* don't warn about the change. */ | |
1693 | ||
9a4105ab AC |
1694 | /* Allow another UI to initialize. If the UI fails to initialize, |
1695 | and it wants GDB to revert to the CLI, it should clear | |
1696 | deprecated_init_ui_hook. */ | |
1697 | if (deprecated_init_ui_hook) | |
1698 | deprecated_init_ui_hook (argv0); | |
64cdedad | 1699 | } |