Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e | 2 | |
c5a57081 | 3 | Copyright (C) 1986-2012 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 SS |
19 | |
20 | #include "defs.h" | |
21 | #include "gdbcmd.h" | |
22 | #include "call-cmds.h" | |
210661e7 EZ |
23 | #include "cli/cli-cmds.h" |
24 | #include "cli/cli-script.h" | |
25 | #include "cli/cli-setshow.h" | |
18a642a1 | 26 | #include "cli/cli-decode.h" |
c906108c SS |
27 | #include "symtab.h" |
28 | #include "inferior.h" | |
60250e8b | 29 | #include "exceptions.h" |
042be3a9 | 30 | #include <signal.h> |
c906108c SS |
31 | #include "target.h" |
32 | #include "breakpoint.h" | |
33 | #include "gdbtypes.h" | |
34 | #include "expression.h" | |
35 | #include "value.h" | |
36 | #include "language.h" | |
c5aa993b | 37 | #include "terminal.h" /* For job_control. */ |
c906108c | 38 | #include "annotate.h" |
c5f0f3d0 | 39 | #include "completer.h" |
c906108c | 40 | #include "top.h" |
d4f3574e | 41 | #include "version.h" |
210661e7 | 42 | #include "serial.h" |
d16aafd8 | 43 | #include "doublest.h" |
f9c696d2 | 44 | #include "gdb_assert.h" |
f17517ea | 45 | #include "main.h" |
2e03ee74 | 46 | #include "event-loop.h" |
8ea051c5 | 47 | #include "gdbthread.h" |
9dea9163 | 48 | #include "python/python.h" |
b4a14fd0 | 49 | #include "interps.h" |
c906108c | 50 | |
371d5dec | 51 | /* readline include files. */ |
dbda9972 AC |
52 | #include "readline/readline.h" |
53 | #include "readline/history.h" | |
c906108c SS |
54 | |
55 | /* readline defines this. */ | |
56 | #undef savestring | |
57 | ||
58 | #include <sys/types.h> | |
c906108c | 59 | |
c2c6d25f | 60 | #include "event-top.h" |
c906108c SS |
61 | #include "gdb_string.h" |
62 | #include "gdb_stat.h" | |
63 | #include <ctype.h> | |
8b93c638 JM |
64 | #include "ui-out.h" |
65 | #include "cli-out.h" | |
c906108c | 66 | |
95298e72 PM |
67 | #define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt |
68 | #define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix | |
69 | #define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix | |
70 | ||
371d5dec | 71 | /* Default command line prompt. This is overriden in some configs. */ |
104c1213 JM |
72 | |
73 | #ifndef DEFAULT_PROMPT | |
74 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
75 | #endif |
76 | ||
77 | /* Initialization file name for gdb. This is overridden in some configs. */ | |
78 | ||
eaae3919 EZ |
79 | #ifndef PATH_MAX |
80 | # ifdef FILENAME_MAX | |
81 | # define PATH_MAX FILENAME_MAX | |
82 | # else | |
83 | # define PATH_MAX 512 | |
84 | # endif | |
85 | #endif | |
86 | ||
c906108c SS |
87 | #ifndef GDBINIT_FILENAME |
88 | #define GDBINIT_FILENAME ".gdbinit" | |
89 | #endif | |
eaae3919 | 90 | char gdbinit[PATH_MAX + 1] = GDBINIT_FILENAME; |
c906108c SS |
91 | |
92 | int inhibit_gdbinit = 0; | |
93 | ||
94 | /* If nonzero, and GDB has been configured to be able to use windows, | |
95 | attempt to open them upon startup. */ | |
96 | ||
f15ab4a7 | 97 | int use_windows = 0; |
c906108c | 98 | |
c906108c SS |
99 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
100 | ||
050a2e1d PA |
101 | /* Flag for whether we want to confirm potentially dangerous |
102 | operations. Default is yes. */ | |
103 | ||
e360902b | 104 | int confirm = 1; |
c906108c | 105 | |
920d2a44 | 106 | static void |
e360902b | 107 | show_confirm (struct ui_file *file, int from_tty, |
920d2a44 AC |
108 | struct cmd_list_element *c, const char *value) |
109 | { | |
3e43a32a MS |
110 | fprintf_filtered (file, _("Whether to confirm potentially " |
111 | "dangerous operations is %s.\n"), | |
920d2a44 AC |
112 | value); |
113 | } | |
c906108c | 114 | |
371d5dec MS |
115 | /* stdio stream that command input is being read from. Set to stdin |
116 | normally. Set by source_command to the file we are sourcing. Set | |
117 | to NULL if we are executing a user-defined command or interacting | |
118 | via a GUI. */ | |
c906108c SS |
119 | |
120 | FILE *instream; | |
121 | ||
698ba934 DJ |
122 | /* Flag to indicate whether a user defined command is currently running. */ |
123 | ||
124 | int in_user_command; | |
125 | ||
c906108c SS |
126 | /* Current working directory. */ |
127 | ||
128 | char *current_directory; | |
129 | ||
130 | /* The directory name is actually stored here (usually). */ | |
131 | char gdb_dirbuf[1024]; | |
132 | ||
133 | /* Function to call before reading a command, if nonzero. | |
134 | The function receives two args: an input stream, | |
135 | and a prompt string. */ | |
136 | ||
507f3c78 | 137 | void (*window_hook) (FILE *, char *); |
c906108c SS |
138 | |
139 | int epoch_interface; | |
140 | int xgdb_verbose; | |
141 | ||
c906108c SS |
142 | /* Buffer used for reading command lines, and the size |
143 | allocated for it so far. */ | |
144 | ||
dc7eb48e PA |
145 | char *saved_command_line; |
146 | int saved_command_line_size = 100; | |
c906108c SS |
147 | |
148 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 149 | affects things like recording into the command history, commands |
c906108c SS |
150 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
151 | whatever) can issue its own commands and also send along commands | |
152 | from the user, and have the user not notice that the user interface | |
153 | is issuing commands too. */ | |
154 | int server_command; | |
155 | ||
156 | /* Baud rate specified for talking to serial target systems. Default | |
157 | is left as -1, so targets can choose their own defaults. */ | |
371d5dec MS |
158 | /* FIXME: This means that "show remotebaud" and gr_files_info can |
159 | print -1 or (unsigned int)-1. This is a Bad User Interface. */ | |
c906108c SS |
160 | |
161 | int baud_rate = -1; | |
162 | ||
371d5dec | 163 | /* Timeout limit for response from target. */ |
c906108c | 164 | |
ce808e91 AC |
165 | /* The default value has been changed many times over the years. It |
166 | was originally 5 seconds. But that was thought to be a long time | |
167 | to sit and wait, so it was changed to 2 seconds. That was thought | |
168 | to be plenty unless the connection was going through some terminal | |
169 | server or multiplexer or other form of hairy serial connection. | |
170 | ||
171 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
172 | it began being used in other remote-* targets. It appears that the | |
173 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 174 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
175 | |
176 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
177 | 20 seconds is far worse. This demonstrates the difficulty of using | |
178 | a single variable for all protocol timeouts. | |
179 | ||
180 | As remote.c is used much more than remote-e7000.c, it was changed | |
371d5dec | 181 | back to 2 seconds in 1999. */ |
ce808e91 AC |
182 | |
183 | int remote_timeout = 2; | |
c906108c SS |
184 | |
185 | /* Non-zero tells remote* modules to output debugging info. */ | |
186 | ||
187 | int remote_debug = 0; | |
188 | ||
6dd77b81 RH |
189 | /* Sbrk location on entry to main. Used for statistics only. */ |
190 | #ifdef HAVE_SBRK | |
191 | char *lim_at_start; | |
192 | #endif | |
193 | ||
c906108c SS |
194 | /* Hooks for alternate command interfaces. */ |
195 | ||
371d5dec MS |
196 | /* Called after most modules have been initialized, but before taking |
197 | users command file. | |
1ad24239 | 198 | |
371d5dec MS |
199 | If the UI fails to initialize and it wants GDB to continue using |
200 | the default UI, then it should clear this hook before returning. */ | |
c906108c | 201 | |
9a4105ab | 202 | void (*deprecated_init_ui_hook) (char *argv0); |
7a292a7a | 203 | |
371d5dec MS |
204 | /* This hook is called from within gdb's many mini-event loops which |
205 | could steal control from a real user interface's event loop. It | |
206 | returns non-zero if the user is requesting a detach, zero | |
207 | otherwise. */ | |
7a292a7a | 208 | |
98bbd631 | 209 | int (*deprecated_ui_loop_hook) (int); |
c906108c SS |
210 | |
211 | /* Called instead of command_loop at top level. Can be invoked via | |
b5a2688f | 212 | throw_exception(). */ |
c906108c | 213 | |
9a4105ab | 214 | void (*deprecated_command_loop_hook) (void); |
c906108c SS |
215 | |
216 | ||
c906108c SS |
217 | /* Called from print_frame_info to list the line we stopped in. */ |
218 | ||
371d5dec MS |
219 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, |
220 | int line, | |
221 | int stopline, | |
222 | int noerror); | |
c906108c SS |
223 | /* Replaces most of query. */ |
224 | ||
9a4105ab | 225 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
226 | |
227 | /* Replaces most of warning. */ | |
228 | ||
9a4105ab | 229 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 230 | |
9a4105ab AC |
231 | /* These three functions support getting lines of text from the user. |
232 | They are used in sequence. First deprecated_readline_begin_hook is | |
233 | called with a text string that might be (for example) a message for | |
234 | the user to type in a sequence of commands to be executed at a | |
235 | breakpoint. If this function calls back to a GUI, it might take | |
236 | this opportunity to pop up a text interaction window with this | |
237 | message. Next, deprecated_readline_hook is called with a prompt | |
238 | that is emitted prior to collecting the user input. It can be | |
239 | called multiple times. Finally, deprecated_readline_end_hook is | |
240 | called to notify the GUI that we are done with the interaction | |
241 | window and it can close it. */ | |
c906108c | 242 | |
9a4105ab AC |
243 | void (*deprecated_readline_begin_hook) (char *, ...); |
244 | char *(*deprecated_readline_hook) (char *); | |
245 | void (*deprecated_readline_end_hook) (void); | |
c906108c | 246 | |
6426a772 | 247 | /* Called as appropriate to notify the interface that we have attached |
371d5dec | 248 | to or detached from an already running process. */ |
6426a772 | 249 | |
9a4105ab AC |
250 | void (*deprecated_attach_hook) (void); |
251 | void (*deprecated_detach_hook) (void); | |
6426a772 | 252 | |
371d5dec MS |
253 | /* Called during long calculations to allow GUI to repair window |
254 | damage, and to check for stop buttons, etc... */ | |
c906108c | 255 | |
9a4105ab | 256 | void (*deprecated_interactive_hook) (void); |
c906108c | 257 | |
c378eb4e | 258 | /* Tell the GUI someone changed the register REGNO. -1 means |
c906108c | 259 | that the caller does not know which register changed or |
371d5dec | 260 | that several registers have changed (see value_assign). */ |
9a4105ab | 261 | void (*deprecated_register_changed_hook) (int regno); |
c906108c | 262 | |
371d5dec MS |
263 | /* Called when going to wait for the target. Usually allows the GUI |
264 | to run while waiting for target events. */ | |
c906108c | 265 | |
9a4105ab | 266 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
47608cb1 PA |
267 | struct target_waitstatus *status, |
268 | int options); | |
c906108c | 269 | |
371d5dec MS |
270 | /* Used by UI as a wrapper around command execution. May do various |
271 | things like enabling/disabling buttons, etc... */ | |
c906108c | 272 | |
371d5dec MS |
273 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, |
274 | char *cmd, int from_tty); | |
c906108c | 275 | |
96baa820 JM |
276 | /* Called after a `set' command has finished. Is only run if the |
277 | `set' command succeeded. */ | |
278 | ||
9a4105ab | 279 | void (*deprecated_set_hook) (struct cmd_list_element * c); |
96baa820 | 280 | |
c906108c SS |
281 | /* Called when the current thread changes. Argument is thread id. */ |
282 | ||
9a4105ab | 283 | void (*deprecated_context_hook) (int id); |
c906108c | 284 | |
c906108c SS |
285 | /* Handler for SIGHUP. */ |
286 | ||
287 | #ifdef SIGHUP | |
392a587b | 288 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 | 289 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 290 | event-top.c into this file, top.c. */ |
b2cd6b29 JM |
291 | /* static */ void |
292 | quit_cover (void) | |
c906108c | 293 | { |
e360902b PA |
294 | /* Stop asking user for confirmation --- we're exiting. This |
295 | prevents asking the user dumb questions. */ | |
296 | confirm = 0; | |
c5aa993b | 297 | quit_command ((char *) 0, 0); |
c906108c SS |
298 | } |
299 | #endif /* defined SIGHUP */ | |
300 | \f | |
7a9dd1b2 | 301 | /* Line number we are currently in, in a file which is being sourced. */ |
392a587b | 302 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 303 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 304 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 305 | /* static */ int source_line_number; |
c906108c SS |
306 | |
307 | /* Name of the file we are sourcing. */ | |
392a587b | 308 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 309 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 310 | event-top.c into this file, top.c. */ |
05159abe | 311 | /* static */ const char *source_file_name; |
c906108c | 312 | |
c906108c SS |
313 | /* Clean up on error during a "source" command (or execution of a |
314 | user-defined command). */ | |
315 | ||
d318976c | 316 | void |
e41a3b1a | 317 | do_restore_instream_cleanup (void *stream) |
c906108c SS |
318 | { |
319 | /* Restore the previous input stream. */ | |
320 | instream = stream; | |
321 | } | |
322 | ||
323 | /* Read commands from STREAM. */ | |
324 | void | |
fba45db2 | 325 | read_command_file (FILE *stream) |
c906108c SS |
326 | { |
327 | struct cleanup *cleanups; | |
328 | ||
e41a3b1a | 329 | cleanups = make_cleanup (do_restore_instream_cleanup, instream); |
c906108c | 330 | instream = stream; |
c5aa993b | 331 | command_loop (); |
c906108c SS |
332 | do_cleanups (cleanups); |
333 | } | |
334 | \f | |
507f3c78 | 335 | void (*pre_init_ui_hook) (void); |
c906108c | 336 | |
e41a3b1a AC |
337 | #ifdef __MSDOS__ |
338 | void | |
339 | do_chdir_cleanup (void *old_dir) | |
340 | { | |
341 | chdir (old_dir); | |
b8c9b27d | 342 | xfree (old_dir); |
e41a3b1a AC |
343 | } |
344 | #endif | |
345 | ||
028d0ed5 | 346 | struct cleanup * |
4e5d721f DE |
347 | prepare_execute_command (void) |
348 | { | |
028d0ed5 TJB |
349 | struct value *mark; |
350 | struct cleanup *cleanup; | |
351 | ||
352 | mark = value_mark (); | |
353 | cleanup = make_cleanup_value_free_to_mark (mark); | |
4e5d721f | 354 | |
371d5dec MS |
355 | /* With multiple threads running while the one we're examining is |
356 | stopped, the dcache can get stale without us being able to detect | |
357 | it. For the duration of the command, though, use the dcache to | |
358 | help things like backtrace. */ | |
4e5d721f DE |
359 | if (non_stop) |
360 | target_dcache_invalidate (); | |
028d0ed5 TJB |
361 | |
362 | return cleanup; | |
4e5d721f DE |
363 | } |
364 | ||
77cce10f PA |
365 | /* Tell the user if the language has changed (except first time) after |
366 | executing a command. */ | |
367 | ||
368 | void | |
369 | check_frame_language_change (void) | |
370 | { | |
371 | static int warned = 0; | |
372 | ||
373 | /* First make sure that a new frame has been selected, in case the | |
374 | command or the hooks changed the program state. */ | |
375 | deprecated_safe_get_selected_frame (); | |
376 | if (current_language != expected_language) | |
377 | { | |
378 | if (language_mode == language_mode_auto && info_verbose) | |
379 | { | |
380 | language_info (1); /* Print what changed. */ | |
381 | } | |
382 | warned = 0; | |
383 | } | |
384 | ||
385 | /* Warn the user if the working language does not match the language | |
386 | of the current frame. Only warn the user if we are actually | |
387 | running the program, i.e. there is a stack. */ | |
388 | /* FIXME: This should be cacheing the frame and only running when | |
389 | the frame changes. */ | |
390 | ||
391 | if (has_stack_frames ()) | |
392 | { | |
393 | enum language flang; | |
394 | ||
395 | flang = get_frame_language (); | |
396 | if (!warned | |
397 | && flang != language_unknown | |
398 | && flang != current_language->la_language) | |
399 | { | |
400 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
401 | warned = 1; | |
402 | } | |
403 | } | |
404 | } | |
405 | ||
648bf667 | 406 | /* Execute the line P as a command, in the current user context. |
d318976c | 407 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 408 | |
d318976c FN |
409 | void |
410 | execute_command (char *p, int from_tty) | |
c906108c | 411 | { |
353d1d73 | 412 | struct cleanup *cleanup_if_error, *cleanup; |
52f0bd74 | 413 | struct cmd_list_element *c; |
d318976c | 414 | char *line; |
4e5d721f | 415 | |
353d1d73 | 416 | cleanup_if_error = make_bpstat_clear_actions_cleanup (); |
028d0ed5 | 417 | cleanup = prepare_execute_command (); |
c906108c | 418 | |
d318976c FN |
419 | /* Force cleanup of any alloca areas if using C alloca instead of |
420 | a builtin alloca. */ | |
421 | alloca (0); | |
c906108c | 422 | |
d318976c FN |
423 | /* This can happen when command_line_input hits end of file. */ |
424 | if (p == NULL) | |
5fe41fbf TT |
425 | { |
426 | do_cleanups (cleanup); | |
427 | return; | |
428 | } | |
c906108c | 429 | |
49d03eab | 430 | target_log_command (p); |
8b93c638 | 431 | |
d318976c FN |
432 | while (*p == ' ' || *p == '\t') |
433 | p++; | |
434 | if (*p) | |
8b93c638 | 435 | { |
d318976c FN |
436 | char *arg; |
437 | line = p; | |
8b93c638 | 438 | |
16026cd7 AS |
439 | /* If trace-commands is set then this will print this command. */ |
440 | print_command_trace (p); | |
441 | ||
d318976c | 442 | c = lookup_cmd (&p, cmdlist, "", 0, 1); |
8b93c638 | 443 | |
d318976c FN |
444 | /* Pass null arg rather than an empty one. */ |
445 | arg = *p ? p : 0; | |
8b93c638 | 446 | |
9f60d481 AC |
447 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
448 | while the is_complete_command(cfunc) test is just plain | |
449 | bogus. They should both be replaced by a test of the form | |
450 | c->strip_trailing_white_space_p. */ | |
451 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
452 | can't be replaced with func. This is because it is the | |
453 | cfunc, and not the func, that has the value that the | |
454 | is_complete_command hack is testing for. */ | |
455 | /* Clear off trailing whitespace, except for set and complete | |
456 | command. */ | |
d318976c FN |
457 | if (arg |
458 | && c->type != set_cmd | |
bbaca940 | 459 | && !is_complete_command (c)) |
8b93c638 | 460 | { |
d318976c FN |
461 | p = arg + strlen (arg) - 1; |
462 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
463 | p--; | |
464 | *(p + 1) = '\0'; | |
8b93c638 JM |
465 | } |
466 | ||
371d5dec | 467 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 468 | execute_cmd_pre_hook (c); |
c906108c | 469 | |
d318976c FN |
470 | if (c->flags & DEPRECATED_WARN_USER) |
471 | deprecated_cmd_warning (&line); | |
c906108c | 472 | |
7d74f244 DE |
473 | /* c->user_commands would be NULL in the case of a python command. */ |
474 | if (c->class == class_user && c->user_commands) | |
d318976c FN |
475 | execute_user_command (c, arg); |
476 | else if (c->type == set_cmd || c->type == show_cmd) | |
050a2e1d | 477 | do_setshow_command (arg, from_tty, c); |
f436dd25 | 478 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 479 | error (_("That is not a command, just a help topic.")); |
9a4105ab | 480 | else if (deprecated_call_command_hook) |
050a2e1d | 481 | deprecated_call_command_hook (c, arg, from_tty); |
d318976c | 482 | else |
050a2e1d | 483 | cmd_func (c, arg, from_tty); |
b4a14fd0 PA |
484 | |
485 | /* If the interpreter is in sync mode (we're running a user | |
486 | command's list, running command hooks or similars), and we | |
487 | just ran a synchronous command that started the target, wait | |
488 | for that command to end. */ | |
0f641c01 | 489 | if (!interpreter_async && sync_execution) |
b4a14fd0 PA |
490 | { |
491 | while (gdb_do_one_event () >= 0) | |
492 | if (!sync_execution) | |
493 | break; | |
494 | } | |
495 | ||
371d5dec | 496 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 497 | execute_cmd_post_hook (c); |
c906108c | 498 | |
c906108c SS |
499 | } |
500 | ||
77cce10f | 501 | check_frame_language_change (); |
028d0ed5 | 502 | |
353d1d73 JK |
503 | do_cleanups (cleanup); |
504 | discard_cleanups (cleanup_if_error); | |
c906108c SS |
505 | } |
506 | ||
5da1313b JK |
507 | /* Run execute_command for P and FROM_TTY. Capture its output into the |
508 | returned string, do not display it to the screen. BATCH_FLAG will be | |
509 | temporarily set to true. */ | |
510 | ||
511 | char * | |
512 | execute_command_to_string (char *p, int from_tty) | |
513 | { | |
514 | struct ui_file *str_file; | |
515 | struct cleanup *cleanup; | |
516 | char *retval; | |
517 | ||
518 | /* GDB_STDOUT should be better already restored during these | |
519 | restoration callbacks. */ | |
520 | cleanup = set_batch_flag_and_make_cleanup_restore_page_info (); | |
521 | ||
b4a14fd0 PA |
522 | make_cleanup_restore_integer (&interpreter_async); |
523 | interpreter_async = 0; | |
524 | ||
5da1313b JK |
525 | str_file = mem_fileopen (); |
526 | ||
8d4d924b | 527 | make_cleanup_ui_file_delete (str_file); |
5da1313b JK |
528 | make_cleanup_restore_ui_file (&gdb_stdout); |
529 | make_cleanup_restore_ui_file (&gdb_stderr); | |
8d4d924b JK |
530 | make_cleanup_restore_ui_file (&gdb_stdlog); |
531 | make_cleanup_restore_ui_file (&gdb_stdtarg); | |
532 | make_cleanup_restore_ui_file (&gdb_stdtargerr); | |
533 | ||
79a45e25 | 534 | if (ui_out_redirect (current_uiout, str_file) < 0) |
8d4d924b JK |
535 | warning (_("Current output protocol does not support redirection")); |
536 | else | |
79a45e25 | 537 | make_cleanup_ui_out_redirect_pop (current_uiout); |
5da1313b JK |
538 | |
539 | gdb_stdout = str_file; | |
540 | gdb_stderr = str_file; | |
8d4d924b JK |
541 | gdb_stdlog = str_file; |
542 | gdb_stdtarg = str_file; | |
543 | gdb_stdtargerr = str_file; | |
5da1313b JK |
544 | |
545 | execute_command (p, from_tty); | |
546 | ||
547 | retval = ui_file_xstrdup (str_file, NULL); | |
548 | ||
549 | do_cleanups (cleanup); | |
550 | ||
551 | return retval; | |
552 | } | |
553 | ||
d318976c FN |
554 | /* Read commands from `instream' and execute them |
555 | until end of file or error reading instream. */ | |
c906108c | 556 | |
d318976c FN |
557 | void |
558 | command_loop (void) | |
c906108c | 559 | { |
d318976c FN |
560 | struct cleanup *old_chain; |
561 | char *command; | |
562 | int stdin_is_tty = ISATTY (stdin); | |
c5aa993b | 563 | |
d318976c FN |
564 | while (instream && !feof (instream)) |
565 | { | |
d318976c | 566 | if (window_hook && instream == stdin) |
ab821bc6 | 567 | (*window_hook) (instream, get_prompt ()); |
c906108c | 568 | |
d318976c FN |
569 | quit_flag = 0; |
570 | if (instream == stdin && stdin_is_tty) | |
571 | reinitialize_more_filter (); | |
572 | old_chain = make_cleanup (null_cleanup, 0); | |
c906108c | 573 | |
c378eb4e | 574 | /* Get a command-line. This calls the readline package. */ |
d318976c | 575 | command = command_line_input (instream == stdin ? |
ab821bc6 | 576 | get_prompt () : (char *) NULL, |
d318976c | 577 | instream == stdin, "prompt"); |
d318976c | 578 | if (command == 0) |
5fe41fbf TT |
579 | { |
580 | do_cleanups (old_chain); | |
581 | return; | |
582 | } | |
c906108c | 583 | |
0f3bb72e | 584 | make_command_stats_cleanup (1); |
9e0b60a8 | 585 | |
d318976c | 586 | execute_command (command, instream == stdin); |
347bddb7 PA |
587 | |
588 | /* Do any commands attached to breakpoint we are stopped at. */ | |
589 | bpstat_do_actions (); | |
590 | ||
d318976c | 591 | do_cleanups (old_chain); |
9e0b60a8 | 592 | } |
9e0b60a8 | 593 | } |
d318976c | 594 | \f |
47a80e90 TT |
595 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
596 | set via prevent_dont_repeat. */ | |
597 | ||
598 | static int suppress_dont_repeat = 0; | |
599 | ||
d318976c | 600 | /* Commands call this if they do not want to be repeated by null lines. */ |
9e0b60a8 | 601 | |
d318976c FN |
602 | void |
603 | dont_repeat (void) | |
9e0b60a8 | 604 | { |
47a80e90 | 605 | if (suppress_dont_repeat || server_command) |
d318976c | 606 | return; |
9e0b60a8 | 607 | |
d318976c | 608 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
609 | thing read from stdin in line and don't want to delete it. Null |
610 | lines won't repeat here in any case. */ | |
d318976c | 611 | if (instream == stdin) |
dc7eb48e | 612 | *saved_command_line = 0; |
9e0b60a8 | 613 | } |
47a80e90 TT |
614 | |
615 | /* Prevent dont_repeat from working, and return a cleanup that | |
616 | restores the previous state. */ | |
617 | ||
618 | struct cleanup * | |
619 | prevent_dont_repeat (void) | |
620 | { | |
621 | struct cleanup *result = make_cleanup_restore_integer (&suppress_dont_repeat); | |
622 | ||
623 | suppress_dont_repeat = 1; | |
624 | return result; | |
625 | } | |
626 | ||
d318976c FN |
627 | \f |
628 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 629 | |
d318976c FN |
630 | It prints PROMPT_ARG once at the start. |
631 | Action is compatible with "readline", e.g. space for the result is | |
632 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 633 | |
d318976c FN |
634 | A NULL return means end of file. */ |
635 | char * | |
636 | gdb_readline (char *prompt_arg) | |
9e0b60a8 | 637 | { |
d318976c FN |
638 | int c; |
639 | char *result; | |
640 | int input_index = 0; | |
641 | int result_size = 80; | |
9e0b60a8 | 642 | |
d318976c | 643 | if (prompt_arg) |
9e0b60a8 | 644 | { |
d318976c FN |
645 | /* Don't use a _filtered function here. It causes the assumed |
646 | character position to be off, since the newline we read from | |
647 | the user is not accounted for. */ | |
648 | fputs_unfiltered (prompt_arg, gdb_stdout); | |
9e0b60a8 JM |
649 | gdb_flush (gdb_stdout); |
650 | } | |
651 | ||
d318976c | 652 | result = (char *) xmalloc (result_size); |
9e0b60a8 JM |
653 | |
654 | while (1) | |
655 | { | |
d318976c FN |
656 | /* Read from stdin if we are executing a user defined command. |
657 | This is the right thing for prompt_for_continue, at least. */ | |
658 | c = fgetc (instream ? instream : stdin); | |
9e0b60a8 | 659 | |
d318976c | 660 | if (c == EOF) |
9e0b60a8 | 661 | { |
d318976c FN |
662 | if (input_index > 0) |
663 | /* The last line does not end with a newline. Return it, and | |
664 | if we are called again fgetc will still return EOF and | |
665 | we'll return NULL then. */ | |
9e0b60a8 | 666 | break; |
b8c9b27d | 667 | xfree (result); |
d318976c | 668 | return NULL; |
9e0b60a8 | 669 | } |
c5aa993b | 670 | |
d318976c | 671 | if (c == '\n') |
9e0b60a8 | 672 | { |
d318976c FN |
673 | if (input_index > 0 && result[input_index - 1] == '\r') |
674 | input_index--; | |
675 | break; | |
9e0b60a8 | 676 | } |
9e0b60a8 | 677 | |
d318976c FN |
678 | result[input_index++] = c; |
679 | while (input_index >= result_size) | |
9e0b60a8 | 680 | { |
d318976c FN |
681 | result_size *= 2; |
682 | result = (char *) xrealloc (result, result_size); | |
9e0b60a8 | 683 | } |
9e0b60a8 JM |
684 | } |
685 | ||
d318976c FN |
686 | result[input_index++] = '\0'; |
687 | return result; | |
9e0b60a8 JM |
688 | } |
689 | ||
d318976c FN |
690 | /* Variables which control command line editing and history |
691 | substitution. These variables are given default values at the end | |
692 | of this file. */ | |
693 | static int command_editing_p; | |
920d2a44 | 694 | |
d318976c FN |
695 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
696 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 697 | event-top.c into this file, top.c. */ |
920d2a44 | 698 | |
d318976c | 699 | /* static */ int history_expansion_p; |
920d2a44 | 700 | |
d318976c | 701 | static int write_history_p; |
920d2a44 AC |
702 | static void |
703 | show_write_history_p (struct ui_file *file, int from_tty, | |
704 | struct cmd_list_element *c, const char *value) | |
705 | { | |
706 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
707 | value); | |
708 | } | |
709 | ||
d318976c | 710 | static int history_size; |
920d2a44 AC |
711 | static void |
712 | show_history_size (struct ui_file *file, int from_tty, | |
713 | struct cmd_list_element *c, const char *value) | |
714 | { | |
715 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
716 | value); | |
717 | } | |
718 | ||
d318976c | 719 | static char *history_filename; |
920d2a44 AC |
720 | static void |
721 | show_history_filename (struct ui_file *file, int from_tty, | |
722 | struct cmd_list_element *c, const char *value) | |
723 | { | |
3e43a32a MS |
724 | fprintf_filtered (file, _("The filename in which to record " |
725 | "the command history is \"%s\".\n"), | |
920d2a44 AC |
726 | value); |
727 | } | |
9e0b60a8 | 728 | |
b4f5539f | 729 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 730 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
731 | a single gdb invocation. At the ordinary top-level prompt we might |
732 | be using the async readline. That means we can't use | |
733 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
734 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
735 | `define'), gdb wants a synchronous response. |
736 | ||
737 | We used to call readline() directly, running it in synchronous | |
738 | mode. But mixing modes this way is not supported, and as of | |
739 | readline 5.x it no longer works; the arrow keys come unbound during | |
740 | the synchronous call. So we make a nested call into the event | |
741 | loop. That's what gdb_readline_wrapper is for. */ | |
742 | ||
743 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
744 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
745 | the user types Control-D for EOF. */ | |
746 | static int gdb_readline_wrapper_done; | |
747 | ||
748 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
749 | is seen. */ | |
750 | static char *gdb_readline_wrapper_result; | |
751 | ||
752 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
753 | to be called after the newline is processed (which will redisplay | |
754 | the prompt). But in gdb_readline_wrapper we will not get a new | |
755 | prompt until the next call, or until we return to the event loop. | |
756 | So we disable this hook around the newline and restore it before we | |
757 | return. */ | |
758 | static void (*saved_after_char_processing_hook) (void); | |
759 | ||
760 | /* This function is called when readline has seen a complete line of | |
761 | text. */ | |
762 | ||
763 | static void | |
764 | gdb_readline_wrapper_line (char *line) | |
765 | { | |
766 | gdb_assert (!gdb_readline_wrapper_done); | |
767 | gdb_readline_wrapper_result = line; | |
768 | gdb_readline_wrapper_done = 1; | |
769 | ||
770 | /* Prevent operate-and-get-next from acting too early. */ | |
771 | saved_after_char_processing_hook = after_char_processing_hook; | |
772 | after_char_processing_hook = NULL; | |
1b05479a DJ |
773 | |
774 | /* Prevent parts of the prompt from being redisplayed if annotations | |
775 | are enabled, and readline's state getting out of sync. */ | |
776 | if (async_command_editing_p) | |
777 | rl_callback_handler_remove (); | |
2e03ee74 DJ |
778 | } |
779 | ||
780 | struct gdb_readline_wrapper_cleanup | |
781 | { | |
782 | void (*handler_orig) (char *); | |
2e03ee74 DJ |
783 | int already_prompted_orig; |
784 | }; | |
785 | ||
786 | static void | |
787 | gdb_readline_wrapper_cleanup (void *arg) | |
788 | { | |
789 | struct gdb_readline_wrapper_cleanup *cleanup = arg; | |
790 | ||
2e03ee74 | 791 | rl_already_prompted = cleanup->already_prompted_orig; |
2e03ee74 DJ |
792 | |
793 | gdb_assert (input_handler == gdb_readline_wrapper_line); | |
794 | input_handler = cleanup->handler_orig; | |
795 | gdb_readline_wrapper_result = NULL; | |
796 | gdb_readline_wrapper_done = 0; | |
797 | ||
798 | after_char_processing_hook = saved_after_char_processing_hook; | |
799 | saved_after_char_processing_hook = NULL; | |
800 | ||
801 | xfree (cleanup); | |
802 | } | |
803 | ||
b4f5539f TT |
804 | char * |
805 | gdb_readline_wrapper (char *prompt) | |
806 | { | |
2e03ee74 DJ |
807 | struct cleanup *back_to; |
808 | struct gdb_readline_wrapper_cleanup *cleanup; | |
809 | char *retval; | |
810 | ||
811 | cleanup = xmalloc (sizeof (*cleanup)); | |
812 | cleanup->handler_orig = input_handler; | |
813 | input_handler = gdb_readline_wrapper_line; | |
814 | ||
2e03ee74 DJ |
815 | cleanup->already_prompted_orig = rl_already_prompted; |
816 | ||
817 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); | |
818 | ||
819 | /* Display our prompt and prevent double prompt display. */ | |
1b05479a | 820 | display_gdb_prompt (prompt); |
2e03ee74 DJ |
821 | rl_already_prompted = 1; |
822 | ||
362646f5 | 823 | if (after_char_processing_hook) |
2e03ee74 DJ |
824 | (*after_char_processing_hook) (); |
825 | gdb_assert (after_char_processing_hook == NULL); | |
826 | ||
e0dd0826 | 827 | while (gdb_do_one_event () >= 0) |
2e03ee74 DJ |
828 | if (gdb_readline_wrapper_done) |
829 | break; | |
b4f5539f | 830 | |
2e03ee74 DJ |
831 | retval = gdb_readline_wrapper_result; |
832 | do_cleanups (back_to); | |
833 | return retval; | |
b4f5539f TT |
834 | } |
835 | ||
9e0b60a8 | 836 | \f |
467d8519 TT |
837 | /* The current saved history number from operate-and-get-next. |
838 | This is -1 if not valid. */ | |
839 | static int operate_saved_history = -1; | |
840 | ||
841 | /* This is put on the appropriate hook and helps operate-and-get-next | |
842 | do its work. */ | |
b9362cc7 | 843 | static void |
5ae5f592 | 844 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
845 | { |
846 | int delta = where_history () - operate_saved_history; | |
5d502164 | 847 | |
467d8519 TT |
848 | /* The `key' argument to rl_get_previous_history is ignored. */ |
849 | rl_get_previous_history (delta, 0); | |
850 | operate_saved_history = -1; | |
851 | ||
852 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 853 | rl_redisplay (); |
467d8519 TT |
854 | |
855 | after_char_processing_hook = NULL; | |
856 | rl_pre_input_hook = NULL; | |
857 | } | |
858 | ||
859 | /* This is a gdb-local readline command handler. It accepts the | |
860 | current command line (like RET does) and, if this command was taken | |
861 | from the history, arranges for the next command in the history to | |
862 | appear on the command line when the prompt returns. | |
863 | We ignore the arguments. */ | |
864 | static int | |
865 | gdb_rl_operate_and_get_next (int count, int key) | |
866 | { | |
b5686e99 MK |
867 | int where; |
868 | ||
362646f5 AC |
869 | /* Use the async hook. */ |
870 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 871 | |
b5686e99 MK |
872 | /* Find the current line, and find the next line to use. */ |
873 | where = where_history(); | |
874 | ||
875 | /* FIXME: kettenis/20020817: max_input_history is renamed into | |
876 | history_max_entries in readline-4.2. When we do a new readline | |
877 | import, we should probably change it here too, even though | |
878 | readline maintains backwards compatibility for now by still | |
879 | defining max_input_history. */ | |
880 | if ((history_is_stifled () && (history_length >= max_input_history)) || | |
881 | (where >= history_length - 1)) | |
882 | operate_saved_history = where; | |
883 | else | |
884 | operate_saved_history = where + 1; | |
885 | ||
467d8519 TT |
886 | return rl_newline (1, key); |
887 | } | |
888 | \f | |
d318976c FN |
889 | /* Read one line from the command input stream `instream' |
890 | into the local static buffer `linebuffer' (whose current length | |
891 | is `linelength'). | |
892 | The buffer is made bigger as necessary. | |
893 | Returns the address of the start of the line. | |
9e0b60a8 | 894 | |
d318976c | 895 | NULL is returned for end of file. |
9e0b60a8 | 896 | |
d318976c FN |
897 | *If* the instream == stdin & stdin is a terminal, the line read |
898 | is copied into the file line saver (global var char *line, | |
899 | length linesize) so that it can be duplicated. | |
9e0b60a8 | 900 | |
d318976c FN |
901 | This routine either uses fancy command line editing or |
902 | simple input as the user has requested. */ | |
10689f25 | 903 | |
d318976c FN |
904 | char * |
905 | command_line_input (char *prompt_arg, int repeat, char *annotation_suffix) | |
9e0b60a8 | 906 | { |
d318976c FN |
907 | static char *linebuffer = 0; |
908 | static unsigned linelength = 0; | |
52f0bd74 | 909 | char *p; |
d318976c FN |
910 | char *p1; |
911 | char *rl; | |
912 | char *local_prompt = prompt_arg; | |
913 | char *nline; | |
914 | char got_eof = 0; | |
915 | ||
916 | /* The annotation suffix must be non-NULL. */ | |
917 | if (annotation_suffix == NULL) | |
918 | annotation_suffix = ""; | |
9e0b60a8 | 919 | |
d318976c FN |
920 | if (annotation_level > 1 && instream == stdin) |
921 | { | |
922 | local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg)) | |
923 | + strlen (annotation_suffix) + 40); | |
924 | if (prompt_arg == NULL) | |
925 | local_prompt[0] = '\0'; | |
926 | else | |
927 | strcpy (local_prompt, prompt_arg); | |
928 | strcat (local_prompt, "\n\032\032"); | |
929 | strcat (local_prompt, annotation_suffix); | |
930 | strcat (local_prompt, "\n"); | |
931 | } | |
9e0b60a8 | 932 | |
d318976c | 933 | if (linebuffer == 0) |
9e0b60a8 | 934 | { |
d318976c FN |
935 | linelength = 80; |
936 | linebuffer = (char *) xmalloc (linelength); | |
9e0b60a8 | 937 | } |
9e0b60a8 | 938 | |
d318976c | 939 | p = linebuffer; |
9e0b60a8 | 940 | |
d318976c FN |
941 | /* Control-C quits instantly if typed while in this loop |
942 | since it should not wait until the user types a newline. */ | |
943 | immediate_quit++; | |
944 | #ifdef STOP_SIGNAL | |
945 | if (job_control) | |
362646f5 | 946 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
947 | #endif |
948 | ||
949 | while (1) | |
9e0b60a8 | 950 | { |
371d5dec MS |
951 | /* Make sure that all output has been output. Some machines may |
952 | let you get away with leaving out some of the gdb_flush, but | |
953 | not all. */ | |
d318976c FN |
954 | wrap_here (""); |
955 | gdb_flush (gdb_stdout); | |
956 | gdb_flush (gdb_stderr); | |
957 | ||
958 | if (source_file_name != NULL) | |
637537d0 | 959 | ++source_line_number; |
d318976c FN |
960 | |
961 | if (annotation_level > 1 && instream == stdin) | |
962 | { | |
306d9ac5 DC |
963 | puts_unfiltered ("\n\032\032pre-"); |
964 | puts_unfiltered (annotation_suffix); | |
965 | puts_unfiltered ("\n"); | |
d318976c FN |
966 | } |
967 | ||
968 | /* Don't use fancy stuff if not talking to stdin. */ | |
698ba934 | 969 | if (deprecated_readline_hook && input_from_terminal_p ()) |
d318976c | 970 | { |
9a4105ab | 971 | rl = (*deprecated_readline_hook) (local_prompt); |
d318976c | 972 | } |
698ba934 | 973 | else if (command_editing_p && input_from_terminal_p ()) |
d318976c | 974 | { |
b4f5539f | 975 | rl = gdb_readline_wrapper (local_prompt); |
d318976c | 976 | } |
9e0b60a8 | 977 | else |
d318976c FN |
978 | { |
979 | rl = gdb_readline (local_prompt); | |
980 | } | |
9e0b60a8 | 981 | |
d318976c FN |
982 | if (annotation_level > 1 && instream == stdin) |
983 | { | |
306d9ac5 DC |
984 | puts_unfiltered ("\n\032\032post-"); |
985 | puts_unfiltered (annotation_suffix); | |
986 | puts_unfiltered ("\n"); | |
d318976c | 987 | } |
9e0b60a8 | 988 | |
d318976c | 989 | if (!rl || rl == (char *) EOF) |
9e0b60a8 | 990 | { |
d318976c FN |
991 | got_eof = 1; |
992 | break; | |
9e0b60a8 | 993 | } |
d318976c FN |
994 | if (strlen (rl) + 1 + (p - linebuffer) > linelength) |
995 | { | |
996 | linelength = strlen (rl) + 1 + (p - linebuffer); | |
997 | nline = (char *) xrealloc (linebuffer, linelength); | |
998 | p += nline - linebuffer; | |
999 | linebuffer = nline; | |
1000 | } | |
1001 | p1 = rl; | |
1002 | /* Copy line. Don't copy null at end. (Leaves line alone | |
371d5dec | 1003 | if this was just a newline). */ |
d318976c FN |
1004 | while (*p1) |
1005 | *p++ = *p1++; | |
9e0b60a8 | 1006 | |
b8c9b27d | 1007 | xfree (rl); /* Allocated in readline. */ |
9e0b60a8 | 1008 | |
d318976c FN |
1009 | if (p == linebuffer || *(p - 1) != '\\') |
1010 | break; | |
9e0b60a8 | 1011 | |
d318976c FN |
1012 | p--; /* Put on top of '\'. */ |
1013 | local_prompt = (char *) 0; | |
1014 | } | |
9e0b60a8 | 1015 | |
d318976c FN |
1016 | #ifdef STOP_SIGNAL |
1017 | if (job_control) | |
1018 | signal (STOP_SIGNAL, SIG_DFL); | |
1019 | #endif | |
1020 | immediate_quit--; | |
9e0b60a8 | 1021 | |
d318976c FN |
1022 | if (got_eof) |
1023 | return NULL; | |
9e0b60a8 | 1024 | |
d318976c FN |
1025 | #define SERVER_COMMAND_LENGTH 7 |
1026 | server_command = | |
1027 | (p - linebuffer > SERVER_COMMAND_LENGTH) | |
bf896cb0 | 1028 | && strncmp (linebuffer, "server ", SERVER_COMMAND_LENGTH) == 0; |
d318976c | 1029 | if (server_command) |
9e0b60a8 | 1030 | { |
d318976c FN |
1031 | /* Note that we don't set `line'. Between this and the check in |
1032 | dont_repeat, this insures that repeating will still do the | |
1033 | right thing. */ | |
1034 | *p = '\0'; | |
1035 | return linebuffer + SERVER_COMMAND_LENGTH; | |
9e0b60a8 | 1036 | } |
9e0b60a8 | 1037 | |
d318976c FN |
1038 | /* Do history expansion if that is wished. */ |
1039 | if (history_expansion_p && instream == stdin | |
1040 | && ISATTY (instream)) | |
1041 | { | |
1042 | char *history_value; | |
1043 | int expanded; | |
9e0b60a8 | 1044 | |
d318976c FN |
1045 | *p = '\0'; /* Insert null now. */ |
1046 | expanded = history_expand (linebuffer, &history_value); | |
1047 | if (expanded) | |
1048 | { | |
1049 | /* Print the changes. */ | |
1050 | printf_unfiltered ("%s\n", history_value); | |
9e0b60a8 | 1051 | |
d318976c FN |
1052 | /* If there was an error, call this function again. */ |
1053 | if (expanded < 0) | |
1054 | { | |
b8c9b27d | 1055 | xfree (history_value); |
3e43a32a MS |
1056 | return command_line_input (prompt_arg, repeat, |
1057 | annotation_suffix); | |
d318976c FN |
1058 | } |
1059 | if (strlen (history_value) > linelength) | |
1060 | { | |
1061 | linelength = strlen (history_value) + 1; | |
1062 | linebuffer = (char *) xrealloc (linebuffer, linelength); | |
1063 | } | |
1064 | strcpy (linebuffer, history_value); | |
1065 | p = linebuffer + strlen (linebuffer); | |
d318976c | 1066 | } |
91d2803c | 1067 | xfree (history_value); |
d318976c | 1068 | } |
9e0b60a8 | 1069 | |
371d5dec MS |
1070 | /* If we just got an empty line, and that is supposed to repeat the |
1071 | previous command, return the value in the global buffer. */ | |
d318976c | 1072 | if (repeat && p == linebuffer) |
dc7eb48e | 1073 | return saved_command_line; |
d318976c FN |
1074 | for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++); |
1075 | if (repeat && !*p1) | |
dc7eb48e | 1076 | return saved_command_line; |
9e0b60a8 | 1077 | |
d318976c | 1078 | *p = 0; |
9e0b60a8 | 1079 | |
d318976c FN |
1080 | /* Add line to history if appropriate. */ |
1081 | if (instream == stdin | |
1082 | && ISATTY (stdin) && *linebuffer) | |
1083 | add_history (linebuffer); | |
9e0b60a8 | 1084 | |
d318976c FN |
1085 | /* Note: lines consisting solely of comments are added to the command |
1086 | history. This is useful when you type a command, and then | |
1087 | realize you don't want to execute it quite yet. You can comment | |
1088 | out the command and then later fetch it from the value history | |
1089 | and remove the '#'. The kill ring is probably better, but some | |
1090 | people are in the habit of commenting things out. */ | |
1091 | if (*p1 == '#') | |
371d5dec | 1092 | *p1 = '\0'; /* Found a comment. */ |
9e0b60a8 | 1093 | |
d318976c FN |
1094 | /* Save into global buffer if appropriate. */ |
1095 | if (repeat) | |
1096 | { | |
dc7eb48e | 1097 | if (linelength > saved_command_line_size) |
d318976c | 1098 | { |
dc7eb48e PA |
1099 | saved_command_line = xrealloc (saved_command_line, linelength); |
1100 | saved_command_line_size = linelength; | |
d318976c | 1101 | } |
dc7eb48e PA |
1102 | strcpy (saved_command_line, linebuffer); |
1103 | return saved_command_line; | |
d318976c | 1104 | } |
9e0b60a8 | 1105 | |
d318976c | 1106 | return linebuffer; |
9e0b60a8 JM |
1107 | } |
1108 | \f | |
371d5dec | 1109 | /* Print the GDB banner. */ |
9e0b60a8 | 1110 | void |
fba45db2 | 1111 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1112 | { |
1113 | /* From GNU coding standards, first line is meant to be easy for a | |
1114 | program to parse, and is just canonical program name and version | |
371d5dec | 1115 | number, which starts after last space. */ |
9e0b60a8 | 1116 | |
c16158bc | 1117 | fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version); |
9e0b60a8 | 1118 | |
371d5dec | 1119 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1120 | |
3e43a32a | 1121 | fprintf_filtered (stream, |
67827812 | 1122 | "Copyright (C) 2012 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1123 | |
1124 | /* Following the copyright is a brief statement that the program is | |
1125 | free software, that users are free to copy and change it on | |
1126 | certain conditions, that it is covered by the GNU GPL, and that | |
371d5dec | 1127 | there is no warranty. */ |
9e0b60a8 JM |
1128 | |
1129 | fprintf_filtered (stream, "\ | |
3e43a32a MS |
1130 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\ |
1131 | \nThis is free software: you are free to change and redistribute it.\n\ | |
0b93d57c | 1132 | There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\ |
b8533aec | 1133 | and \"show warranty\" for details.\n"); |
9e0b60a8 | 1134 | |
371d5dec | 1135 | /* After the required info we print the configuration information. */ |
9e0b60a8 JM |
1136 | |
1137 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1138 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 | 1139 | { |
3e43a32a MS |
1140 | fprintf_filtered (stream, "--host=%s --target=%s", |
1141 | host_name, target_name); | |
9e0b60a8 JM |
1142 | } |
1143 | else | |
1144 | { | |
1145 | fprintf_filtered (stream, "%s", host_name); | |
1146 | } | |
1147 | fprintf_filtered (stream, "\"."); | |
c16158bc JM |
1148 | |
1149 | if (REPORT_BUGS_TO[0]) | |
1150 | { | |
1151 | fprintf_filtered (stream, | |
1152 | _("\nFor bug reporting instructions, please see:\n")); | |
7949220d | 1153 | fprintf_filtered (stream, "%s.", REPORT_BUGS_TO); |
c16158bc | 1154 | } |
9e0b60a8 | 1155 | } |
9e0b60a8 | 1156 | \f |
95298e72 | 1157 | |
ab821bc6 PA |
1158 | /* The current top level prompt, settable with "set prompt", and/or |
1159 | with the python `gdb.prompt_hook' hook. */ | |
1160 | static char *top_prompt; | |
9e0b60a8 | 1161 | |
ab821bc6 | 1162 | /* Access method for the GDB prompt string. */ |
95298e72 PM |
1163 | |
1164 | char * | |
ab821bc6 | 1165 | get_prompt (void) |
95298e72 | 1166 | { |
ab821bc6 | 1167 | return top_prompt; |
95298e72 PM |
1168 | } |
1169 | ||
ab821bc6 | 1170 | /* Set method for the GDB prompt string. */ |
95298e72 PM |
1171 | |
1172 | void | |
ab821bc6 | 1173 | set_prompt (const char *s) |
95298e72 | 1174 | { |
ab821bc6 | 1175 | char *p = xstrdup (s); |
95298e72 | 1176 | |
ab821bc6 PA |
1177 | xfree (top_prompt); |
1178 | top_prompt = p; | |
9e0b60a8 | 1179 | } |
9e0b60a8 | 1180 | \f |
c5aa993b | 1181 | |
b0abbc58 | 1182 | struct qt_args |
9e0b60a8 | 1183 | { |
b0abbc58 JJ |
1184 | char *args; |
1185 | int from_tty; | |
1186 | }; | |
9e0b60a8 | 1187 | |
54a012c9 PA |
1188 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1189 | inferior, depending on how we originally gained control of it. */ | |
1190 | ||
1191 | static int | |
1192 | kill_or_detach (struct inferior *inf, void *args) | |
1193 | { | |
1194 | struct qt_args *qt = args; | |
1195 | struct thread_info *thread; | |
1196 | ||
6c95b8df PA |
1197 | if (inf->pid == 0) |
1198 | return 0; | |
1199 | ||
b8fa0bfa PA |
1200 | thread = any_thread_of_process (inf->pid); |
1201 | if (thread != NULL) | |
9e0b60a8 | 1202 | { |
54a012c9 | 1203 | switch_to_thread (thread->ptid); |
c35b1492 PA |
1204 | |
1205 | /* Leave core files alone. */ | |
1206 | if (target_has_execution) | |
1207 | { | |
1208 | if (inf->attach_flag) | |
1209 | target_detach (qt->args, qt->from_tty); | |
1210 | else | |
1211 | target_kill (); | |
1212 | } | |
9e0b60a8 JM |
1213 | } |
1214 | ||
54a012c9 PA |
1215 | return 0; |
1216 | } | |
1217 | ||
b8fa0bfa PA |
1218 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1219 | will do to each inferior on a "quit". ARG points to a struct | |
1220 | ui_out where output is to be collected. */ | |
1221 | ||
1222 | static int | |
1223 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1224 | { | |
1225 | struct ui_file *stb = arg; | |
1226 | ||
6c95b8df PA |
1227 | if (inf->pid == 0) |
1228 | return 0; | |
1229 | ||
b8fa0bfa PA |
1230 | if (inf->attach_flag) |
1231 | fprintf_filtered (stb, | |
1232 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
1233 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1234 | else | |
1235 | fprintf_filtered (stb, | |
1236 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
1237 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1238 | ||
1239 | return 0; | |
1240 | } | |
1241 | ||
1242 | /* If necessary, make the user confirm that we should quit. Return | |
1243 | non-zero if we should quit, zero if we shouldn't. */ | |
1244 | ||
1245 | int | |
1246 | quit_confirm (void) | |
1247 | { | |
1248 | struct ui_file *stb; | |
1249 | struct cleanup *old_chain; | |
1250 | char *str; | |
1251 | int qr; | |
1252 | ||
1253 | /* Don't even ask if we're only debugging a core file inferior. */ | |
1254 | if (!have_live_inferiors ()) | |
1255 | return 1; | |
1256 | ||
1257 | /* Build the query string as a single string. */ | |
1258 | stb = mem_fileopen (); | |
1259 | old_chain = make_cleanup_ui_file_delete (stb); | |
1260 | ||
1261 | /* This is something of a hack. But there's no reliable way to see | |
1262 | if a GUI is running. The `use_windows' variable doesn't cut | |
1263 | it. */ | |
1264 | if (deprecated_init_ui_hook) | |
1265 | fprintf_filtered (stb, _("A debugging session is active.\n" | |
1266 | "Do you still want to close the debugger?")); | |
1267 | else | |
1268 | { | |
1269 | fprintf_filtered (stb, _("A debugging session is active.\n\n")); | |
1270 | iterate_over_inferiors (print_inferior_quit_action, stb); | |
1271 | fprintf_filtered (stb, _("\nQuit anyway? ")); | |
1272 | } | |
1273 | ||
1274 | str = ui_file_xstrdup (stb, NULL); | |
1275 | make_cleanup (xfree, str); | |
1276 | ||
1277 | qr = query ("%s", str); | |
1278 | do_cleanups (old_chain); | |
1279 | return qr; | |
1280 | } | |
1281 | ||
54a012c9 PA |
1282 | /* Helper routine for quit_force that requires error handling. */ |
1283 | ||
1284 | static int | |
1285 | quit_target (void *arg) | |
1286 | { | |
1287 | struct qt_args *qt = (struct qt_args *)arg; | |
1288 | ||
1289 | /* Kill or detach all inferiors. */ | |
c35b1492 | 1290 | iterate_over_inferiors (kill_or_detach, qt); |
54a012c9 | 1291 | |
aa76d38d PA |
1292 | /* Give all pushed targets a chance to do minimal cleanup, and pop |
1293 | them all out. */ | |
1294 | pop_all_targets (1); | |
9e0b60a8 JM |
1295 | |
1296 | /* Save the history information if it is appropriate to do so. */ | |
1297 | if (write_history_p && history_filename) | |
1298 | write_history (history_filename); | |
1299 | ||
371d5dec MS |
1300 | do_final_cleanups (ALL_CLEANUPS); /* Do any final cleanups before |
1301 | exiting. */ | |
b0abbc58 JJ |
1302 | return 0; |
1303 | } | |
1304 | ||
1305 | /* Quit without asking for confirmation. */ | |
1306 | ||
1307 | void | |
1308 | quit_force (char *args, int from_tty) | |
1309 | { | |
1310 | int exit_code = 0; | |
365c70b1 | 1311 | struct qt_args qt; |
b0abbc58 JJ |
1312 | |
1313 | /* An optional expression may be used to cause gdb to terminate with the | |
371d5dec | 1314 | value of that expression. */ |
b0abbc58 JJ |
1315 | if (args) |
1316 | { | |
1317 | struct value *val = parse_and_eval (args); | |
1318 | ||
1319 | exit_code = (int) value_as_long (val); | |
1320 | } | |
4b0ad762 AS |
1321 | else if (return_child_result) |
1322 | exit_code = return_child_result_value; | |
b0abbc58 | 1323 | |
365c70b1 JJ |
1324 | qt.args = args; |
1325 | qt.from_tty = from_tty; | |
1326 | ||
b0abbc58 | 1327 | /* We want to handle any quit errors and exit regardless. */ |
365c70b1 | 1328 | catch_errors (quit_target, &qt, |
b0abbc58 JJ |
1329 | "Quitting: ", RETURN_MASK_ALL); |
1330 | ||
9e0b60a8 JM |
1331 | exit (exit_code); |
1332 | } | |
1333 | ||
698ba934 DJ |
1334 | /* Returns whether GDB is running on a terminal and input is |
1335 | currently coming from that terminal. */ | |
9e0b60a8 JM |
1336 | |
1337 | int | |
fba45db2 | 1338 | input_from_terminal_p (void) |
9e0b60a8 | 1339 | { |
c63a1f86 JK |
1340 | if (batch_flag) |
1341 | return 0; | |
1342 | ||
698ba934 DJ |
1343 | if (gdb_has_a_terminal () && instream == stdin) |
1344 | return 1; | |
1345 | ||
1346 | /* If INSTREAM is unset, and we are not in a user command, we | |
1347 | must be in Insight. That's like having a terminal, for our | |
1348 | purposes. */ | |
1349 | if (instream == NULL && !in_user_command) | |
1350 | return 1; | |
1351 | ||
1352 | return 0; | |
9e0b60a8 JM |
1353 | } |
1354 | \f | |
9e0b60a8 | 1355 | static void |
fba45db2 | 1356 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1357 | { |
dc7eb48e PA |
1358 | /* Can't call dont_repeat here because we're not necessarily reading |
1359 | from stdin. */ | |
1360 | *saved_command_line = 0; | |
9e0b60a8 JM |
1361 | } |
1362 | \f | |
1363 | /* Functions to manipulate command line editing control variables. */ | |
1364 | ||
1365 | /* Number of commands to print in each call to show_commands. */ | |
1366 | #define Hist_print 10 | |
d318976c | 1367 | void |
fba45db2 | 1368 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1369 | { |
1370 | /* Index for history commands. Relative to history_base. */ | |
1371 | int offset; | |
1372 | ||
1373 | /* Number of the history entry which we are planning to display next. | |
1374 | Relative to history_base. */ | |
1375 | static int num = 0; | |
1376 | ||
1377 | /* The first command in the history which doesn't exist (i.e. one more | |
1378 | than the number of the last command). Relative to history_base. */ | |
1379 | int hist_len; | |
1380 | ||
9e0b60a8 JM |
1381 | /* Print out some of the commands from the command history. */ |
1382 | /* First determine the length of the history list. */ | |
1383 | hist_len = history_size; | |
1384 | for (offset = 0; offset < history_size; offset++) | |
1385 | { | |
1386 | if (!history_get (history_base + offset)) | |
1387 | { | |
1388 | hist_len = offset; | |
1389 | break; | |
1390 | } | |
1391 | } | |
1392 | ||
1393 | if (args) | |
1394 | { | |
1395 | if (args[0] == '+' && args[1] == '\0') | |
1396 | /* "info editing +" should print from the stored position. */ | |
1397 | ; | |
1398 | else | |
1399 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1400 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1401 | } |
1402 | /* "show commands" means print the last Hist_print commands. */ | |
1403 | else | |
1404 | { | |
1405 | num = hist_len - Hist_print; | |
1406 | } | |
1407 | ||
1408 | if (num < 0) | |
1409 | num = 0; | |
1410 | ||
1411 | /* If there are at least Hist_print commands, we want to display the last | |
1412 | Hist_print rather than, say, the last 6. */ | |
1413 | if (hist_len - num < Hist_print) | |
1414 | { | |
1415 | num = hist_len - Hist_print; | |
1416 | if (num < 0) | |
1417 | num = 0; | |
1418 | } | |
1419 | ||
1420 | for (offset = num; offset < num + Hist_print && offset < hist_len; offset++) | |
1421 | { | |
1422 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1423 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1424 | } |
1425 | ||
1426 | /* The next command we want to display is the next one that we haven't | |
1427 | displayed yet. */ | |
1428 | num += Hist_print; | |
1429 | ||
1430 | /* If the user repeats this command with return, it should do what | |
1431 | "show commands +" does. This is unnecessary if arg is null, | |
1432 | because "show commands +" is not useful after "show commands". */ | |
1433 | if (from_tty && args) | |
1434 | { | |
1435 | args[0] = '+'; | |
1436 | args[1] = '\0'; | |
1437 | } | |
1438 | } | |
1439 | ||
1440 | /* Called by do_setshow_command. */ | |
9e0b60a8 | 1441 | static void |
fba45db2 | 1442 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1443 | { |
1444 | if (history_size == INT_MAX) | |
1445 | unstifle_history (); | |
1446 | else if (history_size >= 0) | |
1447 | stifle_history (history_size); | |
1448 | else | |
1449 | { | |
1450 | history_size = INT_MAX; | |
8a3fe4f8 | 1451 | error (_("History size must be non-negative")); |
9e0b60a8 JM |
1452 | } |
1453 | } | |
1454 | ||
d318976c | 1455 | void |
fba45db2 | 1456 | set_history (char *args, int from_tty) |
9e0b60a8 | 1457 | { |
3e43a32a MS |
1458 | printf_unfiltered (_("\"set history\" must be followed " |
1459 | "by the name of a history subcommand.\n")); | |
9e0b60a8 JM |
1460 | help_list (sethistlist, "set history ", -1, gdb_stdout); |
1461 | } | |
1462 | ||
d318976c | 1463 | void |
fba45db2 | 1464 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1465 | { |
1466 | cmd_show_list (showhistlist, from_tty, ""); | |
1467 | } | |
1468 | ||
371d5dec | 1469 | int info_verbose = 0; /* Default verbose msgs off. */ |
9e0b60a8 JM |
1470 | |
1471 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1472 | void |
fba45db2 | 1473 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1474 | { |
1475 | char *cmdname = "verbose"; | |
1476 | struct cmd_list_element *showcmd; | |
1477 | ||
1478 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1427fe5e | 1479 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 JM |
1480 | |
1481 | if (info_verbose) | |
1482 | { | |
1483 | c->doc = "Set verbose printing of informational messages."; | |
1484 | showcmd->doc = "Show verbose printing of informational messages."; | |
1485 | } | |
1486 | else | |
1487 | { | |
1488 | c->doc = "Set verbosity."; | |
1489 | showcmd->doc = "Show verbosity."; | |
1490 | } | |
1491 | } | |
1492 | ||
9e0b60a8 | 1493 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1494 | have been read so that the user can change the history file via his |
1495 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1496 | overrides all of this. */ | |
9e0b60a8 JM |
1497 | |
1498 | void | |
fba45db2 | 1499 | init_history (void) |
9e0b60a8 JM |
1500 | { |
1501 | char *tmpenv; | |
1502 | ||
1503 | tmpenv = getenv ("HISTSIZE"); | |
1504 | if (tmpenv) | |
1505 | history_size = atoi (tmpenv); | |
1506 | else if (!history_size) | |
1507 | history_size = 256; | |
1508 | ||
1509 | stifle_history (history_size); | |
1510 | ||
1511 | tmpenv = getenv ("GDBHISTFILE"); | |
1512 | if (tmpenv) | |
1b36a34b | 1513 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1514 | else if (!history_filename) |
1515 | { | |
1516 | /* We include the current directory so that if the user changes | |
1517 | directories the file written will be the same as the one | |
1518 | that was read. */ | |
a0b3c4fd | 1519 | #ifdef __MSDOS__ |
eb2f494a | 1520 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1521 | history_filename = concat (current_directory, "/_gdb_history", |
1522 | (char *)NULL); | |
a0b3c4fd | 1523 | #else |
1754f103 MK |
1524 | history_filename = concat (current_directory, "/.gdb_history", |
1525 | (char *)NULL); | |
a0b3c4fd | 1526 | #endif |
c5aa993b | 1527 | } |
9e0b60a8 JM |
1528 | read_history (history_filename); |
1529 | } | |
1530 | ||
920d2a44 | 1531 | static void |
ab821bc6 PA |
1532 | show_prompt (struct ui_file *file, int from_tty, |
1533 | struct cmd_list_element *c, const char *value) | |
920d2a44 AC |
1534 | { |
1535 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1536 | } | |
1537 | ||
1538 | static void | |
1539 | show_async_command_editing_p (struct ui_file *file, int from_tty, | |
1540 | struct cmd_list_element *c, const char *value) | |
1541 | { | |
3e43a32a MS |
1542 | fprintf_filtered (file, _("Editing of command lines as " |
1543 | "they are typed is %s.\n"), | |
920d2a44 AC |
1544 | value); |
1545 | } | |
1546 | ||
1547 | static void | |
1548 | show_annotation_level (struct ui_file *file, int from_tty, | |
1549 | struct cmd_list_element *c, const char *value) | |
1550 | { | |
1551 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1552 | } | |
1553 | ||
1554 | static void | |
1555 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1556 | struct cmd_list_element *c, const char *value) | |
1557 | { | |
3e43a32a MS |
1558 | fprintf_filtered (file, _("Notification of completion for " |
1559 | "asynchronous execution commands is %s.\n"), | |
920d2a44 AC |
1560 | value); |
1561 | } | |
9e0b60a8 | 1562 | static void |
fba45db2 | 1563 | init_main (void) |
9e0b60a8 | 1564 | { |
ab821bc6 PA |
1565 | /* Initialize the prompt to a simple "(gdb) " prompt or to whatever |
1566 | the DEFAULT_PROMPT is. */ | |
1567 | set_prompt (DEFAULT_PROMPT); | |
1568 | ||
362646f5 AC |
1569 | /* Set things up for annotation_level > 1, if the user ever decides |
1570 | to use it. */ | |
1571 | async_annotation_suffix = "prompt"; | |
362646f5 | 1572 | |
9e0b60a8 JM |
1573 | /* Set the important stuff up for command editing. */ |
1574 | command_editing_p = 1; | |
9e0b60a8 JM |
1575 | history_expansion_p = 0; |
1576 | write_history_p = 0; | |
1577 | ||
1578 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 1579 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
38017ce8 | 1580 | rl_completion_entry_function = readline_line_completion_function; |
51065942 | 1581 | rl_completer_word_break_characters = default_word_break_characters (); |
d318976c | 1582 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
9e0b60a8 | 1583 | rl_readline_name = "gdb"; |
7cb3ec5e | 1584 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 1585 | |
467d8519 TT |
1586 | /* The name for this defun comes from Bash, where it originated. |
1587 | 15 is Control-o, the same binding this function has in Bash. */ | |
1588 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
1589 | ||
4d28ad1e | 1590 | add_setshow_string_cmd ("prompt", class_support, |
ab821bc6 | 1591 | &top_prompt, |
3e43a32a MS |
1592 | _("Set gdb's prompt"), |
1593 | _("Show gdb's prompt"), | |
ab821bc6 PA |
1594 | NULL, NULL, |
1595 | show_prompt, | |
4d28ad1e | 1596 | &setlist, &showlist); |
9e0b60a8 | 1597 | |
1bedd215 | 1598 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
1599 | Don't repeat this command.\nPrimarily \ |
1600 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 1601 | hitting return.")); |
9e0b60a8 | 1602 | |
5bf193a2 AC |
1603 | add_setshow_boolean_cmd ("editing", class_support, |
1604 | &async_command_editing_p, _("\ | |
1605 | Set editing of command lines as they are typed."), _("\ | |
1606 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
1607 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
1608 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 AC |
1609 | EMACS-like or VI-like commands like control-P or ESC."), |
1610 | set_async_editing_command, | |
920d2a44 | 1611 | show_async_command_editing_p, |
5bf193a2 AC |
1612 | &setlist, &showlist); |
1613 | ||
1614 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
1615 | Set saving of the history record on exit."), _("\ | |
1616 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 1617 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
1618 | Without an argument, saving is enabled."), |
1619 | NULL, | |
920d2a44 | 1620 | show_write_history_p, |
5bf193a2 | 1621 | &sethistlist, &showhistlist); |
9e0b60a8 | 1622 | |
4d28ad1e AC |
1623 | add_setshow_integer_cmd ("size", no_class, &history_size, _("\ |
1624 | Set the size of the command history,"), _("\ | |
1625 | Show the size of the command history,"), _("\ | |
1626 | ie. the number of previous commands to keep a record of."), | |
1627 | set_history_size_command, | |
920d2a44 | 1628 | show_history_size, |
4d28ad1e AC |
1629 | &sethistlist, &showhistlist); |
1630 | ||
1631 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ | |
1632 | Set the filename in which to record the command history"), _("\ | |
1633 | Show the filename in which to record the command history"), _("\ | |
1634 | (the list of previous commands of which a record is kept)."), | |
1635 | NULL, | |
920d2a44 | 1636 | show_history_filename, |
4d28ad1e | 1637 | &sethistlist, &showhistlist); |
9e0b60a8 | 1638 | |
e360902b | 1639 | add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\ |
5bf193a2 AC |
1640 | Set whether to confirm potentially dangerous operations."), _("\ |
1641 | Show whether to confirm potentially dangerous operations."), NULL, | |
1642 | NULL, | |
e360902b | 1643 | show_confirm, |
5bf193a2 | 1644 | &setlist, &showlist); |
9e0b60a8 | 1645 | |
85c07804 AC |
1646 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
1647 | Set annotation_level."), _("\ | |
1648 | Show annotation_level."), _("\ | |
9e0b60a8 | 1649 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 | 1650 | 2 == output annotated suitably for use by programs that control GDB."), |
ab821bc6 | 1651 | NULL, |
920d2a44 | 1652 | show_annotation_level, |
85c07804 | 1653 | &setlist, &showlist); |
362646f5 | 1654 | |
5bf193a2 AC |
1655 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
1656 | &exec_done_display_p, _("\ | |
1657 | Set notification of completion for asynchronous execution commands."), _("\ | |
1658 | Show notification of completion for asynchronous execution commands."), _("\ | |
1659 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
1660 | NULL, | |
920d2a44 | 1661 | show_exec_done_display_p, |
5bf193a2 | 1662 | &setlist, &showlist); |
b14b1491 TT |
1663 | |
1664 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
1665 | &gdb_datadir, _("Set GDB's data directory."), | |
1666 | _("Show GDB's data directory."), | |
1667 | _("\ | |
1668 | When set, GDB uses the specified path to search for data files."), | |
1669 | NULL, NULL, | |
1670 | &setlist, | |
1671 | &showlist); | |
9e0b60a8 | 1672 | } |
64cdedad EZ |
1673 | |
1674 | void | |
1675 | gdb_init (char *argv0) | |
1676 | { | |
1677 | if (pre_init_ui_hook) | |
1678 | pre_init_ui_hook (); | |
1679 | ||
371d5dec | 1680 | /* Run the init function of each source file. */ |
64cdedad | 1681 | |
64cdedad EZ |
1682 | #ifdef __MSDOS__ |
1683 | /* Make sure we return to the original directory upon exit, come | |
1684 | what may, since the OS doesn't do that for us. */ | |
1685 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
1686 | #endif | |
1687 | ||
371d5dec MS |
1688 | init_cmd_lists (); /* This needs to be done first. */ |
1689 | initialize_targets (); /* Setup target_terminal macros for utils.c. */ | |
1690 | initialize_utils (); /* Make errors and warnings possible. */ | |
9dea9163 DE |
1691 | |
1692 | /* Here is where we call all the _initialize_foo routines. */ | |
64cdedad | 1693 | initialize_all_files (); |
9dea9163 | 1694 | |
6c95b8df PA |
1695 | /* This creates the current_program_space. Do this after all the |
1696 | _initialize_foo routines have had a chance to install their | |
1697 | per-sspace data keys. Also do this before | |
1698 | initialize_current_architecture is called, because it accesses | |
1699 | exec_bfd of the current program space. */ | |
1700 | initialize_progspace (); | |
1701 | initialize_inferiors (); | |
64cdedad EZ |
1702 | initialize_current_architecture (); |
1703 | init_cli_cmds(); | |
371d5dec | 1704 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 1705 | |
0ea3f30e DJ |
1706 | initialize_stdin_serial (); |
1707 | ||
362646f5 | 1708 | async_init_signals (); |
64cdedad | 1709 | |
371d5dec MS |
1710 | /* We need a default language for parsing expressions, so simple |
1711 | things like "set width 0" won't fail if no language is explicitly | |
1712 | set in a config file or implicitly set by reading an executable | |
1713 | during startup. */ | |
64cdedad | 1714 | set_language (language_c); |
371d5dec | 1715 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 1716 | |
c378eb4e | 1717 | /* Allow another UI to initialize. If the UI fails to initialize, |
9a4105ab AC |
1718 | and it wants GDB to revert to the CLI, it should clear |
1719 | deprecated_init_ui_hook. */ | |
1720 | if (deprecated_init_ui_hook) | |
1721 | deprecated_init_ui_hook (argv0); | |
9dea9163 DE |
1722 | |
1723 | #ifdef HAVE_PYTHON | |
371d5dec MS |
1724 | /* Python initialization can require various commands to be |
1725 | installed. For example "info pretty-printer" needs the "info" | |
1726 | prefix to be installed. Keep things simple and just do final | |
1727 | python initialization here. */ | |
9dea9163 DE |
1728 | finish_python_initialization (); |
1729 | #endif | |
64cdedad | 1730 | } |