Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e AC |
2 | |
3 | Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, | |
637537d0 | 4 | 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 |
a752853e | 5 | 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 | |
11 | the Free Software Foundation; either version 2 of the License, or | |
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 JM |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
23 | |
24 | #include "defs.h" | |
25 | #include "gdbcmd.h" | |
26 | #include "call-cmds.h" | |
210661e7 EZ |
27 | #include "cli/cli-cmds.h" |
28 | #include "cli/cli-script.h" | |
29 | #include "cli/cli-setshow.h" | |
18a642a1 | 30 | #include "cli/cli-decode.h" |
c906108c SS |
31 | #include "symtab.h" |
32 | #include "inferior.h" | |
60250e8b | 33 | #include "exceptions.h" |
042be3a9 | 34 | #include <signal.h> |
c906108c SS |
35 | #include "target.h" |
36 | #include "breakpoint.h" | |
37 | #include "gdbtypes.h" | |
38 | #include "expression.h" | |
39 | #include "value.h" | |
40 | #include "language.h" | |
c5aa993b | 41 | #include "terminal.h" /* For job_control. */ |
c906108c | 42 | #include "annotate.h" |
c5f0f3d0 | 43 | #include "completer.h" |
c906108c | 44 | #include "top.h" |
d4f3574e | 45 | #include "version.h" |
210661e7 | 46 | #include "serial.h" |
d16aafd8 | 47 | #include "doublest.h" |
f9c696d2 | 48 | #include "gdb_assert.h" |
f17517ea | 49 | #include "main.h" |
c906108c SS |
50 | |
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 | |
104c1213 JM |
67 | /* Default command line prompt. This is overriden in some configs. */ |
68 | ||
69 | #ifndef DEFAULT_PROMPT | |
70 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
71 | #endif |
72 | ||
73 | /* Initialization file name for gdb. This is overridden in some configs. */ | |
74 | ||
eaae3919 EZ |
75 | #ifndef PATH_MAX |
76 | # ifdef FILENAME_MAX | |
77 | # define PATH_MAX FILENAME_MAX | |
78 | # else | |
79 | # define PATH_MAX 512 | |
80 | # endif | |
81 | #endif | |
82 | ||
c906108c SS |
83 | #ifndef GDBINIT_FILENAME |
84 | #define GDBINIT_FILENAME ".gdbinit" | |
85 | #endif | |
eaae3919 | 86 | char gdbinit[PATH_MAX + 1] = GDBINIT_FILENAME; |
c906108c SS |
87 | |
88 | int inhibit_gdbinit = 0; | |
89 | ||
90 | /* If nonzero, and GDB has been configured to be able to use windows, | |
91 | attempt to open them upon startup. */ | |
92 | ||
f15ab4a7 | 93 | int use_windows = 0; |
c906108c | 94 | |
c906108c SS |
95 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
96 | ||
97 | /* Flag for whether we want all the "from_tty" gubbish printed. */ | |
98 | ||
c5aa993b | 99 | int caution = 1; /* Default is yes, sigh. */ |
920d2a44 AC |
100 | static void |
101 | show_caution (struct ui_file *file, int from_tty, | |
102 | struct cmd_list_element *c, const char *value) | |
103 | { | |
104 | fprintf_filtered (file, _("\ | |
105 | Whether to confirm potentially dangerous operations is %s.\n"), | |
106 | value); | |
107 | } | |
c906108c | 108 | |
c906108c SS |
109 | /* stdio stream that command input is being read from. Set to stdin normally. |
110 | Set by source_command to the file we are sourcing. Set to NULL if we are | |
111 | executing a user-defined command or interacting via a GUI. */ | |
112 | ||
113 | FILE *instream; | |
114 | ||
115 | /* Current working directory. */ | |
116 | ||
117 | char *current_directory; | |
118 | ||
119 | /* The directory name is actually stored here (usually). */ | |
120 | char gdb_dirbuf[1024]; | |
121 | ||
122 | /* Function to call before reading a command, if nonzero. | |
123 | The function receives two args: an input stream, | |
124 | and a prompt string. */ | |
125 | ||
507f3c78 | 126 | void (*window_hook) (FILE *, char *); |
c906108c SS |
127 | |
128 | int epoch_interface; | |
129 | int xgdb_verbose; | |
130 | ||
131 | /* gdb prints this when reading a command interactively */ | |
c5aa993b | 132 | static char *gdb_prompt_string; /* the global prompt string */ |
c906108c SS |
133 | |
134 | /* Buffer used for reading command lines, and the size | |
135 | allocated for it so far. */ | |
136 | ||
137 | char *line; | |
138 | int linesize = 100; | |
139 | ||
140 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 141 | affects things like recording into the command history, commands |
c906108c SS |
142 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
143 | whatever) can issue its own commands and also send along commands | |
144 | from the user, and have the user not notice that the user interface | |
145 | is issuing commands too. */ | |
146 | int server_command; | |
147 | ||
148 | /* Baud rate specified for talking to serial target systems. Default | |
149 | is left as -1, so targets can choose their own defaults. */ | |
150 | /* FIXME: This means that "show remotebaud" and gr_files_info can print -1 | |
151 | or (unsigned int)-1. This is a Bad User Interface. */ | |
152 | ||
153 | int baud_rate = -1; | |
154 | ||
155 | /* Timeout limit for response from target. */ | |
156 | ||
ce808e91 AC |
157 | /* The default value has been changed many times over the years. It |
158 | was originally 5 seconds. But that was thought to be a long time | |
159 | to sit and wait, so it was changed to 2 seconds. That was thought | |
160 | to be plenty unless the connection was going through some terminal | |
161 | server or multiplexer or other form of hairy serial connection. | |
162 | ||
163 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
164 | it began being used in other remote-* targets. It appears that the | |
165 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 166 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
167 | |
168 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
169 | 20 seconds is far worse. This demonstrates the difficulty of using | |
170 | a single variable for all protocol timeouts. | |
171 | ||
172 | As remote.c is used much more than remote-e7000.c, it was changed | |
173 | back to 2 seconds in 1999. */ | |
174 | ||
175 | int remote_timeout = 2; | |
c906108c SS |
176 | |
177 | /* Non-zero tells remote* modules to output debugging info. */ | |
178 | ||
179 | int remote_debug = 0; | |
180 | ||
43ff13b4 JM |
181 | /* Non-zero means the target is running. Note: this is different from |
182 | saying that there is an active target and we are stopped at a | |
183 | breakpoint, for instance. This is a real indicator whether the | |
184 | target is off and running, which gdb is doing something else. */ | |
185 | int target_executing = 0; | |
186 | ||
c906108c SS |
187 | /* Level of control structure. */ |
188 | static int control_level; | |
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 SS |
271 | |
272 | /* Called when the registers have changed, as a hint to a GUI | |
273 | to minimize window update. */ | |
274 | ||
9a4105ab | 275 | void (*deprecated_registers_changed_hook) (void); |
c906108c SS |
276 | |
277 | /* Tell the GUI someone changed the register REGNO. -1 means | |
278 | that the caller does not know which register changed or | |
c5aa993b | 279 | that several registers have changed (see value_assign). */ |
9a4105ab | 280 | void (*deprecated_register_changed_hook) (int regno); |
c906108c SS |
281 | |
282 | /* Tell the GUI someone changed LEN bytes of memory at ADDR */ | |
9a4105ab | 283 | void (*deprecated_memory_changed_hook) (CORE_ADDR addr, int len); |
c906108c SS |
284 | |
285 | /* Called when going to wait for the target. Usually allows the GUI to run | |
286 | while waiting for target events. */ | |
287 | ||
9a4105ab AC |
288 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
289 | struct target_waitstatus * status); | |
c906108c SS |
290 | |
291 | /* Used by UI as a wrapper around command execution. May do various things | |
292 | like enabling/disabling buttons, etc... */ | |
293 | ||
9a4105ab AC |
294 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, char *cmd, |
295 | int from_tty); | |
c906108c | 296 | |
96baa820 JM |
297 | /* Called after a `set' command has finished. Is only run if the |
298 | `set' command succeeded. */ | |
299 | ||
9a4105ab | 300 | void (*deprecated_set_hook) (struct cmd_list_element * c); |
96baa820 | 301 | |
c906108c SS |
302 | /* Called when the current thread changes. Argument is thread id. */ |
303 | ||
9a4105ab | 304 | void (*deprecated_context_hook) (int id); |
c906108c SS |
305 | |
306 | /* Takes control from error (). Typically used to prevent longjmps out of the | |
307 | middle of the GUI. Usually used in conjunction with a catch routine. */ | |
308 | ||
c40d0d10 | 309 | void (*deprecated_error_hook) (void); |
11cf8741 | 310 | |
c906108c SS |
311 | /* Handler for SIGHUP. */ |
312 | ||
313 | #ifdef SIGHUP | |
392a587b | 314 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 SS |
315 | gdb to use the event loop as the default command loop and we merge |
316 | event-top.c into this file, top.c */ | |
317 | /* static */ int | |
d0c8cdfb | 318 | quit_cover (void *s) |
c906108c | 319 | { |
c5aa993b JM |
320 | caution = 0; /* Throw caution to the wind -- we're exiting. |
321 | This prevents asking the user dumb questions. */ | |
322 | quit_command ((char *) 0, 0); | |
c906108c SS |
323 | return 0; |
324 | } | |
325 | #endif /* defined SIGHUP */ | |
326 | \f | |
327 | /* Line number we are currently in in a file which is being sourced. */ | |
392a587b | 328 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
329 | gdb to use the event loop as the default command loop and we merge |
330 | event-top.c into this file, top.c */ | |
331 | /* static */ int source_line_number; | |
c906108c SS |
332 | |
333 | /* Name of the file we are sourcing. */ | |
392a587b | 334 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
335 | gdb to use the event loop as the default command loop and we merge |
336 | event-top.c into this file, top.c */ | |
337 | /* static */ char *source_file_name; | |
c906108c | 338 | |
c906108c SS |
339 | /* Clean up on error during a "source" command (or execution of a |
340 | user-defined command). */ | |
341 | ||
d318976c | 342 | void |
e41a3b1a | 343 | do_restore_instream_cleanup (void *stream) |
c906108c SS |
344 | { |
345 | /* Restore the previous input stream. */ | |
346 | instream = stream; | |
347 | } | |
348 | ||
349 | /* Read commands from STREAM. */ | |
350 | void | |
fba45db2 | 351 | read_command_file (FILE *stream) |
c906108c SS |
352 | { |
353 | struct cleanup *cleanups; | |
354 | ||
e41a3b1a | 355 | cleanups = make_cleanup (do_restore_instream_cleanup, instream); |
c906108c | 356 | instream = stream; |
c5aa993b | 357 | command_loop (); |
c906108c SS |
358 | do_cleanups (cleanups); |
359 | } | |
360 | \f | |
507f3c78 | 361 | void (*pre_init_ui_hook) (void); |
c906108c | 362 | |
e41a3b1a AC |
363 | #ifdef __MSDOS__ |
364 | void | |
365 | do_chdir_cleanup (void *old_dir) | |
366 | { | |
367 | chdir (old_dir); | |
b8c9b27d | 368 | xfree (old_dir); |
e41a3b1a AC |
369 | } |
370 | #endif | |
371 | ||
d318976c FN |
372 | /* Execute the line P as a command. |
373 | Pass FROM_TTY as second argument to the defining function. */ | |
c906108c | 374 | |
d318976c FN |
375 | void |
376 | execute_command (char *p, int from_tty) | |
c906108c | 377 | { |
52f0bd74 AC |
378 | struct cmd_list_element *c; |
379 | enum language flang; | |
d318976c FN |
380 | static int warned = 0; |
381 | char *line; | |
67e1e03a | 382 | |
d318976c | 383 | free_all_values (); |
c906108c | 384 | |
d318976c FN |
385 | /* Force cleanup of any alloca areas if using C alloca instead of |
386 | a builtin alloca. */ | |
387 | alloca (0); | |
c906108c | 388 | |
d318976c FN |
389 | /* This can happen when command_line_input hits end of file. */ |
390 | if (p == NULL) | |
391 | return; | |
c906108c | 392 | |
d318976c | 393 | serial_log_command (p); |
8b93c638 | 394 | |
d318976c FN |
395 | while (*p == ' ' || *p == '\t') |
396 | p++; | |
397 | if (*p) | |
8b93c638 | 398 | { |
d318976c FN |
399 | char *arg; |
400 | line = p; | |
8b93c638 | 401 | |
d318976c | 402 | c = lookup_cmd (&p, cmdlist, "", 0, 1); |
8b93c638 | 403 | |
d318976c FN |
404 | /* If the target is running, we allow only a limited set of |
405 | commands. */ | |
362646f5 | 406 | if (target_can_async_p () && target_executing) |
d8fe84e3 EZ |
407 | if (strcmp (c->name, "help") != 0 |
408 | && strcmp (c->name, "pwd") != 0 | |
409 | && strcmp (c->name, "show") != 0 | |
410 | && strcmp (c->name, "stop") != 0) | |
8a3fe4f8 | 411 | error (_("Cannot execute this command while the target is running.")); |
8b93c638 | 412 | |
d318976c FN |
413 | /* Pass null arg rather than an empty one. */ |
414 | arg = *p ? p : 0; | |
8b93c638 | 415 | |
9f60d481 AC |
416 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
417 | while the is_complete_command(cfunc) test is just plain | |
418 | bogus. They should both be replaced by a test of the form | |
419 | c->strip_trailing_white_space_p. */ | |
420 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
421 | can't be replaced with func. This is because it is the | |
422 | cfunc, and not the func, that has the value that the | |
423 | is_complete_command hack is testing for. */ | |
424 | /* Clear off trailing whitespace, except for set and complete | |
425 | command. */ | |
d318976c FN |
426 | if (arg |
427 | && c->type != set_cmd | |
bbaca940 | 428 | && !is_complete_command (c)) |
8b93c638 | 429 | { |
d318976c FN |
430 | p = arg + strlen (arg) - 1; |
431 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
432 | p--; | |
433 | *(p + 1) = '\0'; | |
8b93c638 JM |
434 | } |
435 | ||
d318976c | 436 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 437 | execute_cmd_pre_hook (c); |
c906108c | 438 | |
d318976c FN |
439 | if (c->flags & DEPRECATED_WARN_USER) |
440 | deprecated_cmd_warning (&line); | |
c906108c | 441 | |
d318976c FN |
442 | if (c->class == class_user) |
443 | execute_user_command (c, arg); | |
444 | else if (c->type == set_cmd || c->type == show_cmd) | |
445 | do_setshow_command (arg, from_tty & caution, c); | |
f436dd25 | 446 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 447 | error (_("That is not a command, just a help topic.")); |
9a4105ab AC |
448 | else if (deprecated_call_command_hook) |
449 | deprecated_call_command_hook (c, arg, from_tty & caution); | |
d318976c | 450 | else |
f436dd25 | 451 | cmd_func (c, arg, from_tty & caution); |
d318976c FN |
452 | |
453 | /* If this command has been post-hooked, run the hook last. */ | |
5913bcb0 | 454 | execute_cmd_post_hook (c); |
c906108c | 455 | |
c906108c SS |
456 | } |
457 | ||
d318976c FN |
458 | /* Tell the user if the language has changed (except first time). */ |
459 | if (current_language != expected_language) | |
c906108c | 460 | { |
d318976c | 461 | if (language_mode == language_mode_auto) |
c906108c | 462 | { |
d318976c | 463 | language_info (1); /* Print what changed. */ |
c906108c | 464 | } |
d318976c | 465 | warned = 0; |
c906108c SS |
466 | } |
467 | ||
d318976c FN |
468 | /* Warn the user if the working language does not match the |
469 | language of the current frame. Only warn the user if we are | |
470 | actually running the program, i.e. there is a stack. */ | |
471 | /* FIXME: This should be cacheing the frame and only running when | |
472 | the frame changes. */ | |
473 | ||
474 | if (target_has_stack) | |
c906108c | 475 | { |
d318976c FN |
476 | flang = get_frame_language (); |
477 | if (!warned | |
478 | && flang != language_unknown | |
479 | && flang != current_language->la_language) | |
c906108c | 480 | { |
d318976c FN |
481 | printf_filtered ("%s\n", lang_frame_mismatch_warn); |
482 | warned = 1; | |
c906108c | 483 | } |
c906108c SS |
484 | } |
485 | } | |
486 | ||
d318976c FN |
487 | /* Read commands from `instream' and execute them |
488 | until end of file or error reading instream. */ | |
c906108c | 489 | |
d318976c FN |
490 | void |
491 | command_loop (void) | |
c906108c | 492 | { |
d318976c FN |
493 | struct cleanup *old_chain; |
494 | char *command; | |
495 | int stdin_is_tty = ISATTY (stdin); | |
496 | long time_at_cmd_start; | |
497 | #ifdef HAVE_SBRK | |
498 | long space_at_cmd_start = 0; | |
499 | #endif | |
500 | extern int display_time; | |
501 | extern int display_space; | |
c5aa993b | 502 | |
d318976c FN |
503 | while (instream && !feof (instream)) |
504 | { | |
d318976c FN |
505 | if (window_hook && instream == stdin) |
506 | (*window_hook) (instream, get_prompt ()); | |
c906108c | 507 | |
d318976c FN |
508 | quit_flag = 0; |
509 | if (instream == stdin && stdin_is_tty) | |
510 | reinitialize_more_filter (); | |
511 | old_chain = make_cleanup (null_cleanup, 0); | |
c906108c | 512 | |
d318976c FN |
513 | /* Get a command-line. This calls the readline package. */ |
514 | command = command_line_input (instream == stdin ? | |
515 | get_prompt () : (char *) NULL, | |
516 | instream == stdin, "prompt"); | |
d318976c FN |
517 | if (command == 0) |
518 | return; | |
c906108c | 519 | |
d318976c | 520 | time_at_cmd_start = get_run_time (); |
c906108c | 521 | |
d318976c | 522 | if (display_space) |
9e0b60a8 | 523 | { |
d318976c | 524 | #ifdef HAVE_SBRK |
d318976c | 525 | char *lim = (char *) sbrk (0); |
6dd77b81 | 526 | space_at_cmd_start = lim - lim_at_start; |
9e0b60a8 | 527 | #endif |
d318976c | 528 | } |
9e0b60a8 | 529 | |
d318976c FN |
530 | execute_command (command, instream == stdin); |
531 | /* Do any commands attached to breakpoint we stopped at. */ | |
532 | bpstat_do_actions (&stop_bpstat); | |
533 | do_cleanups (old_chain); | |
9e0b60a8 | 534 | |
d318976c | 535 | if (display_time) |
9e0b60a8 | 536 | { |
d318976c | 537 | long cmd_time = get_run_time () - time_at_cmd_start; |
9e0b60a8 | 538 | |
a3f17187 | 539 | printf_unfiltered (_("Command execution time: %ld.%06ld\n"), |
d318976c | 540 | cmd_time / 1000000, cmd_time % 1000000); |
9e0b60a8 | 541 | } |
9e0b60a8 | 542 | |
d318976c | 543 | if (display_space) |
9e0b60a8 | 544 | { |
d318976c | 545 | #ifdef HAVE_SBRK |
d318976c | 546 | char *lim = (char *) sbrk (0); |
6dd77b81 | 547 | long space_now = lim - lim_at_start; |
d318976c FN |
548 | long space_diff = space_now - space_at_cmd_start; |
549 | ||
a3f17187 | 550 | printf_unfiltered (_("Space used: %ld (%c%ld for this command)\n"), |
d318976c FN |
551 | space_now, |
552 | (space_diff >= 0 ? '+' : '-'), | |
553 | space_diff); | |
554 | #endif | |
9e0b60a8 | 555 | } |
9e0b60a8 | 556 | } |
9e0b60a8 | 557 | } |
9e0b60a8 | 558 | |
d318976c FN |
559 | /* Read commands from `instream' and execute them until end of file or |
560 | error reading instream. This command loop doesnt care about any | |
561 | such things as displaying time and space usage. If the user asks | |
562 | for those, they won't work. */ | |
563 | void | |
564 | simplified_command_loop (char *(*read_input_func) (char *), | |
565 | void (*execute_command_func) (char *, int)) | |
9e0b60a8 | 566 | { |
d318976c FN |
567 | struct cleanup *old_chain; |
568 | char *command; | |
569 | int stdin_is_tty = ISATTY (stdin); | |
9e0b60a8 | 570 | |
d318976c | 571 | while (instream && !feof (instream)) |
9e0b60a8 | 572 | { |
d318976c FN |
573 | quit_flag = 0; |
574 | if (instream == stdin && stdin_is_tty) | |
575 | reinitialize_more_filter (); | |
576 | old_chain = make_cleanup (null_cleanup, 0); | |
577 | ||
578 | /* Get a command-line. */ | |
579 | command = (*read_input_func) (instream == stdin ? | |
580 | get_prompt () : (char *) NULL); | |
9e0b60a8 | 581 | |
d318976c FN |
582 | if (command == 0) |
583 | return; | |
9e0b60a8 | 584 | |
d318976c | 585 | (*execute_command_func) (command, instream == stdin); |
9e0b60a8 | 586 | |
d318976c FN |
587 | /* Do any commands attached to breakpoint we stopped at. */ |
588 | bpstat_do_actions (&stop_bpstat); | |
9e0b60a8 | 589 | |
d318976c | 590 | do_cleanups (old_chain); |
c5aa993b | 591 | } |
9e0b60a8 | 592 | } |
d318976c FN |
593 | \f |
594 | /* Commands call this if they do not want to be repeated by null lines. */ | |
9e0b60a8 | 595 | |
d318976c FN |
596 | void |
597 | dont_repeat (void) | |
9e0b60a8 | 598 | { |
d318976c FN |
599 | if (server_command) |
600 | return; | |
9e0b60a8 | 601 | |
d318976c FN |
602 | /* If we aren't reading from standard input, we are saving the last |
603 | thing read from stdin in line and don't want to delete it. Null lines | |
604 | won't repeat here in any case. */ | |
605 | if (instream == stdin) | |
606 | *line = 0; | |
9e0b60a8 | 607 | } |
d318976c FN |
608 | \f |
609 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 610 | |
d318976c FN |
611 | It prints PROMPT_ARG once at the start. |
612 | Action is compatible with "readline", e.g. space for the result is | |
613 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 614 | |
d318976c FN |
615 | A NULL return means end of file. */ |
616 | char * | |
617 | gdb_readline (char *prompt_arg) | |
9e0b60a8 | 618 | { |
d318976c FN |
619 | int c; |
620 | char *result; | |
621 | int input_index = 0; | |
622 | int result_size = 80; | |
9e0b60a8 | 623 | |
d318976c | 624 | if (prompt_arg) |
9e0b60a8 | 625 | { |
d318976c FN |
626 | /* Don't use a _filtered function here. It causes the assumed |
627 | character position to be off, since the newline we read from | |
628 | the user is not accounted for. */ | |
629 | fputs_unfiltered (prompt_arg, gdb_stdout); | |
9e0b60a8 JM |
630 | gdb_flush (gdb_stdout); |
631 | } | |
632 | ||
d318976c | 633 | result = (char *) xmalloc (result_size); |
9e0b60a8 JM |
634 | |
635 | while (1) | |
636 | { | |
d318976c FN |
637 | /* Read from stdin if we are executing a user defined command. |
638 | This is the right thing for prompt_for_continue, at least. */ | |
639 | c = fgetc (instream ? instream : stdin); | |
9e0b60a8 | 640 | |
d318976c | 641 | if (c == EOF) |
9e0b60a8 | 642 | { |
d318976c FN |
643 | if (input_index > 0) |
644 | /* The last line does not end with a newline. Return it, and | |
645 | if we are called again fgetc will still return EOF and | |
646 | we'll return NULL then. */ | |
9e0b60a8 | 647 | break; |
b8c9b27d | 648 | xfree (result); |
d318976c | 649 | return NULL; |
9e0b60a8 | 650 | } |
c5aa993b | 651 | |
d318976c | 652 | if (c == '\n') |
9e0b60a8 | 653 | { |
d318976c FN |
654 | if (input_index > 0 && result[input_index - 1] == '\r') |
655 | input_index--; | |
656 | break; | |
9e0b60a8 | 657 | } |
9e0b60a8 | 658 | |
d318976c FN |
659 | result[input_index++] = c; |
660 | while (input_index >= result_size) | |
9e0b60a8 | 661 | { |
d318976c FN |
662 | result_size *= 2; |
663 | result = (char *) xrealloc (result, result_size); | |
9e0b60a8 | 664 | } |
9e0b60a8 JM |
665 | } |
666 | ||
d318976c FN |
667 | result[input_index++] = '\0'; |
668 | return result; | |
9e0b60a8 JM |
669 | } |
670 | ||
d318976c FN |
671 | /* Variables which control command line editing and history |
672 | substitution. These variables are given default values at the end | |
673 | of this file. */ | |
674 | static int command_editing_p; | |
920d2a44 | 675 | |
d318976c FN |
676 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
677 | gdb to use the event loop as the default command loop and we merge | |
678 | event-top.c into this file, top.c */ | |
920d2a44 | 679 | |
d318976c | 680 | /* static */ int history_expansion_p; |
920d2a44 | 681 | |
d318976c | 682 | static int write_history_p; |
920d2a44 AC |
683 | static void |
684 | show_write_history_p (struct ui_file *file, int from_tty, | |
685 | struct cmd_list_element *c, const char *value) | |
686 | { | |
687 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
688 | value); | |
689 | } | |
690 | ||
d318976c | 691 | static int history_size; |
920d2a44 AC |
692 | static void |
693 | show_history_size (struct ui_file *file, int from_tty, | |
694 | struct cmd_list_element *c, const char *value) | |
695 | { | |
696 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
697 | value); | |
698 | } | |
699 | ||
d318976c | 700 | static char *history_filename; |
920d2a44 AC |
701 | static void |
702 | show_history_filename (struct ui_file *file, int from_tty, | |
703 | struct cmd_list_element *c, const char *value) | |
704 | { | |
705 | fprintf_filtered (file, _("\ | |
706 | The filename in which to record the command history is \"%s\".\n"), | |
707 | value); | |
708 | } | |
9e0b60a8 | 709 | |
b4f5539f TT |
710 | /* This is like readline(), but it has some gdb-specific behavior. |
711 | gdb can use readline in both the synchronous and async modes during | |
712 | a single gdb invocation. At the ordinary top-level prompt we might | |
713 | be using the async readline. That means we can't use | |
714 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
715 | However, for a secondary prompt (" >", such as occurs during a | |
716 | `define'), gdb just calls readline() directly, running it in | |
717 | synchronous mode. So for operate-and-get-next to work in this | |
718 | situation, we have to switch the hooks around. That is what | |
719 | gdb_readline_wrapper is for. */ | |
720 | char * | |
721 | gdb_readline_wrapper (char *prompt) | |
722 | { | |
723 | /* Set the hook that works in this case. */ | |
362646f5 | 724 | if (after_char_processing_hook) |
b4f5539f TT |
725 | { |
726 | rl_pre_input_hook = (Function *) after_char_processing_hook; | |
727 | after_char_processing_hook = NULL; | |
728 | } | |
729 | ||
730 | return readline (prompt); | |
731 | } | |
732 | ||
9e0b60a8 | 733 | \f |
d318976c FN |
734 | #ifdef STOP_SIGNAL |
735 | static void | |
736 | stop_sig (int signo) | |
9e0b60a8 | 737 | { |
d318976c FN |
738 | #if STOP_SIGNAL == SIGTSTP |
739 | signal (SIGTSTP, SIG_DFL); | |
46711df8 MK |
740 | #if HAVE_SIGPROCMASK |
741 | { | |
742 | sigset_t zero; | |
743 | ||
744 | sigemptyset (&zero); | |
745 | sigprocmask (SIG_SETMASK, &zero, 0); | |
746 | } | |
747 | #elif HAVE_SIGSETMASK | |
d318976c | 748 | sigsetmask (0); |
46711df8 | 749 | #endif |
d318976c FN |
750 | kill (getpid (), SIGTSTP); |
751 | signal (SIGTSTP, stop_sig); | |
752 | #else | |
753 | signal (STOP_SIGNAL, stop_sig); | |
754 | #endif | |
755 | printf_unfiltered ("%s", get_prompt ()); | |
756 | gdb_flush (gdb_stdout); | |
9e0b60a8 | 757 | |
d318976c FN |
758 | /* Forget about any previous command -- null line now will do nothing. */ |
759 | dont_repeat (); | |
9e0b60a8 | 760 | } |
d318976c | 761 | #endif /* STOP_SIGNAL */ |
9e0b60a8 | 762 | |
d318976c | 763 | /* Initialize signal handlers. */ |
64cdedad EZ |
764 | static void |
765 | float_handler (int signo) | |
766 | { | |
767 | /* This message is based on ANSI C, section 4.7. Note that integer | |
768 | divide by zero causes this, so "float" is a misnomer. */ | |
769 | signal (SIGFPE, float_handler); | |
8a3fe4f8 | 770 | error (_("Erroneous arithmetic operation.")); |
64cdedad EZ |
771 | } |
772 | ||
9e0b60a8 | 773 | static void |
d318976c | 774 | do_nothing (int signo) |
9e0b60a8 | 775 | { |
d318976c FN |
776 | /* Under System V the default disposition of a signal is reinstated after |
777 | the signal is caught and delivered to an application process. On such | |
778 | systems one must restore the replacement signal handler if one wishes | |
779 | to continue handling the signal in one's program. On BSD systems this | |
780 | is not needed but it is harmless, and it simplifies the code to just do | |
781 | it unconditionally. */ | |
782 | signal (signo, do_nothing); | |
9e0b60a8 JM |
783 | } |
784 | ||
467d8519 TT |
785 | /* The current saved history number from operate-and-get-next. |
786 | This is -1 if not valid. */ | |
787 | static int operate_saved_history = -1; | |
788 | ||
789 | /* This is put on the appropriate hook and helps operate-and-get-next | |
790 | do its work. */ | |
b9362cc7 | 791 | static void |
5ae5f592 | 792 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
793 | { |
794 | int delta = where_history () - operate_saved_history; | |
795 | /* The `key' argument to rl_get_previous_history is ignored. */ | |
796 | rl_get_previous_history (delta, 0); | |
797 | operate_saved_history = -1; | |
798 | ||
799 | /* readline doesn't automatically update the display for us. */ | |
800 | rl_redisplay (); | |
801 | ||
802 | after_char_processing_hook = NULL; | |
803 | rl_pre_input_hook = NULL; | |
804 | } | |
805 | ||
806 | /* This is a gdb-local readline command handler. It accepts the | |
807 | current command line (like RET does) and, if this command was taken | |
808 | from the history, arranges for the next command in the history to | |
809 | appear on the command line when the prompt returns. | |
810 | We ignore the arguments. */ | |
811 | static int | |
812 | gdb_rl_operate_and_get_next (int count, int key) | |
813 | { | |
b5686e99 MK |
814 | int where; |
815 | ||
362646f5 AC |
816 | /* Use the async hook. */ |
817 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 818 | |
b5686e99 MK |
819 | /* Find the current line, and find the next line to use. */ |
820 | where = where_history(); | |
821 | ||
822 | /* FIXME: kettenis/20020817: max_input_history is renamed into | |
823 | history_max_entries in readline-4.2. When we do a new readline | |
824 | import, we should probably change it here too, even though | |
825 | readline maintains backwards compatibility for now by still | |
826 | defining max_input_history. */ | |
827 | if ((history_is_stifled () && (history_length >= max_input_history)) || | |
828 | (where >= history_length - 1)) | |
829 | operate_saved_history = where; | |
830 | else | |
831 | operate_saved_history = where + 1; | |
832 | ||
467d8519 TT |
833 | return rl_newline (1, key); |
834 | } | |
835 | \f | |
d318976c FN |
836 | /* Read one line from the command input stream `instream' |
837 | into the local static buffer `linebuffer' (whose current length | |
838 | is `linelength'). | |
839 | The buffer is made bigger as necessary. | |
840 | Returns the address of the start of the line. | |
9e0b60a8 | 841 | |
d318976c | 842 | NULL is returned for end of file. |
9e0b60a8 | 843 | |
d318976c FN |
844 | *If* the instream == stdin & stdin is a terminal, the line read |
845 | is copied into the file line saver (global var char *line, | |
846 | length linesize) so that it can be duplicated. | |
9e0b60a8 | 847 | |
d318976c FN |
848 | This routine either uses fancy command line editing or |
849 | simple input as the user has requested. */ | |
10689f25 | 850 | |
d318976c FN |
851 | char * |
852 | command_line_input (char *prompt_arg, int repeat, char *annotation_suffix) | |
9e0b60a8 | 853 | { |
d318976c FN |
854 | static char *linebuffer = 0; |
855 | static unsigned linelength = 0; | |
52f0bd74 | 856 | char *p; |
d318976c FN |
857 | char *p1; |
858 | char *rl; | |
859 | char *local_prompt = prompt_arg; | |
860 | char *nline; | |
861 | char got_eof = 0; | |
862 | ||
863 | /* The annotation suffix must be non-NULL. */ | |
864 | if (annotation_suffix == NULL) | |
865 | annotation_suffix = ""; | |
9e0b60a8 | 866 | |
d318976c FN |
867 | if (annotation_level > 1 && instream == stdin) |
868 | { | |
869 | local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg)) | |
870 | + strlen (annotation_suffix) + 40); | |
871 | if (prompt_arg == NULL) | |
872 | local_prompt[0] = '\0'; | |
873 | else | |
874 | strcpy (local_prompt, prompt_arg); | |
875 | strcat (local_prompt, "\n\032\032"); | |
876 | strcat (local_prompt, annotation_suffix); | |
877 | strcat (local_prompt, "\n"); | |
878 | } | |
9e0b60a8 | 879 | |
d318976c | 880 | if (linebuffer == 0) |
9e0b60a8 | 881 | { |
d318976c FN |
882 | linelength = 80; |
883 | linebuffer = (char *) xmalloc (linelength); | |
9e0b60a8 | 884 | } |
9e0b60a8 | 885 | |
d318976c | 886 | p = linebuffer; |
9e0b60a8 | 887 | |
d318976c FN |
888 | /* Control-C quits instantly if typed while in this loop |
889 | since it should not wait until the user types a newline. */ | |
890 | immediate_quit++; | |
891 | #ifdef STOP_SIGNAL | |
892 | if (job_control) | |
362646f5 | 893 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
894 | #endif |
895 | ||
896 | while (1) | |
9e0b60a8 | 897 | { |
d318976c FN |
898 | /* Make sure that all output has been output. Some machines may let |
899 | you get away with leaving out some of the gdb_flush, but not all. */ | |
900 | wrap_here (""); | |
901 | gdb_flush (gdb_stdout); | |
902 | gdb_flush (gdb_stderr); | |
903 | ||
904 | if (source_file_name != NULL) | |
637537d0 | 905 | ++source_line_number; |
d318976c FN |
906 | |
907 | if (annotation_level > 1 && instream == stdin) | |
908 | { | |
306d9ac5 DC |
909 | puts_unfiltered ("\n\032\032pre-"); |
910 | puts_unfiltered (annotation_suffix); | |
911 | puts_unfiltered ("\n"); | |
d318976c FN |
912 | } |
913 | ||
914 | /* Don't use fancy stuff if not talking to stdin. */ | |
9a4105ab | 915 | if (deprecated_readline_hook && instream == NULL) |
d318976c | 916 | { |
9a4105ab | 917 | rl = (*deprecated_readline_hook) (local_prompt); |
d318976c FN |
918 | } |
919 | else if (command_editing_p && instream == stdin && ISATTY (instream)) | |
920 | { | |
b4f5539f | 921 | rl = gdb_readline_wrapper (local_prompt); |
d318976c | 922 | } |
9e0b60a8 | 923 | else |
d318976c FN |
924 | { |
925 | rl = gdb_readline (local_prompt); | |
926 | } | |
9e0b60a8 | 927 | |
d318976c FN |
928 | if (annotation_level > 1 && instream == stdin) |
929 | { | |
306d9ac5 DC |
930 | puts_unfiltered ("\n\032\032post-"); |
931 | puts_unfiltered (annotation_suffix); | |
932 | puts_unfiltered ("\n"); | |
d318976c | 933 | } |
9e0b60a8 | 934 | |
d318976c | 935 | if (!rl || rl == (char *) EOF) |
9e0b60a8 | 936 | { |
d318976c FN |
937 | got_eof = 1; |
938 | break; | |
9e0b60a8 | 939 | } |
d318976c FN |
940 | if (strlen (rl) + 1 + (p - linebuffer) > linelength) |
941 | { | |
942 | linelength = strlen (rl) + 1 + (p - linebuffer); | |
943 | nline = (char *) xrealloc (linebuffer, linelength); | |
944 | p += nline - linebuffer; | |
945 | linebuffer = nline; | |
946 | } | |
947 | p1 = rl; | |
948 | /* Copy line. Don't copy null at end. (Leaves line alone | |
949 | if this was just a newline) */ | |
950 | while (*p1) | |
951 | *p++ = *p1++; | |
9e0b60a8 | 952 | |
b8c9b27d | 953 | xfree (rl); /* Allocated in readline. */ |
9e0b60a8 | 954 | |
d318976c FN |
955 | if (p == linebuffer || *(p - 1) != '\\') |
956 | break; | |
9e0b60a8 | 957 | |
d318976c FN |
958 | p--; /* Put on top of '\'. */ |
959 | local_prompt = (char *) 0; | |
960 | } | |
9e0b60a8 | 961 | |
d318976c FN |
962 | #ifdef STOP_SIGNAL |
963 | if (job_control) | |
964 | signal (STOP_SIGNAL, SIG_DFL); | |
965 | #endif | |
966 | immediate_quit--; | |
9e0b60a8 | 967 | |
d318976c FN |
968 | if (got_eof) |
969 | return NULL; | |
9e0b60a8 | 970 | |
d318976c FN |
971 | #define SERVER_COMMAND_LENGTH 7 |
972 | server_command = | |
973 | (p - linebuffer > SERVER_COMMAND_LENGTH) | |
bf896cb0 | 974 | && strncmp (linebuffer, "server ", SERVER_COMMAND_LENGTH) == 0; |
d318976c | 975 | if (server_command) |
9e0b60a8 | 976 | { |
d318976c FN |
977 | /* Note that we don't set `line'. Between this and the check in |
978 | dont_repeat, this insures that repeating will still do the | |
979 | right thing. */ | |
980 | *p = '\0'; | |
981 | return linebuffer + SERVER_COMMAND_LENGTH; | |
9e0b60a8 | 982 | } |
9e0b60a8 | 983 | |
d318976c FN |
984 | /* Do history expansion if that is wished. */ |
985 | if (history_expansion_p && instream == stdin | |
986 | && ISATTY (instream)) | |
987 | { | |
988 | char *history_value; | |
989 | int expanded; | |
9e0b60a8 | 990 | |
d318976c FN |
991 | *p = '\0'; /* Insert null now. */ |
992 | expanded = history_expand (linebuffer, &history_value); | |
993 | if (expanded) | |
994 | { | |
995 | /* Print the changes. */ | |
996 | printf_unfiltered ("%s\n", history_value); | |
9e0b60a8 | 997 | |
d318976c FN |
998 | /* If there was an error, call this function again. */ |
999 | if (expanded < 0) | |
1000 | { | |
b8c9b27d | 1001 | xfree (history_value); |
d318976c FN |
1002 | return command_line_input (prompt_arg, repeat, annotation_suffix); |
1003 | } | |
1004 | if (strlen (history_value) > linelength) | |
1005 | { | |
1006 | linelength = strlen (history_value) + 1; | |
1007 | linebuffer = (char *) xrealloc (linebuffer, linelength); | |
1008 | } | |
1009 | strcpy (linebuffer, history_value); | |
1010 | p = linebuffer + strlen (linebuffer); | |
b8c9b27d | 1011 | xfree (history_value); |
d318976c FN |
1012 | } |
1013 | } | |
9e0b60a8 | 1014 | |
d318976c FN |
1015 | /* If we just got an empty line, and that is supposed |
1016 | to repeat the previous command, return the value in the | |
1017 | global buffer. */ | |
1018 | if (repeat && p == linebuffer) | |
1019 | return line; | |
1020 | for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++); | |
1021 | if (repeat && !*p1) | |
1022 | return line; | |
9e0b60a8 | 1023 | |
d318976c | 1024 | *p = 0; |
9e0b60a8 | 1025 | |
d318976c FN |
1026 | /* Add line to history if appropriate. */ |
1027 | if (instream == stdin | |
1028 | && ISATTY (stdin) && *linebuffer) | |
1029 | add_history (linebuffer); | |
9e0b60a8 | 1030 | |
d318976c FN |
1031 | /* Note: lines consisting solely of comments are added to the command |
1032 | history. This is useful when you type a command, and then | |
1033 | realize you don't want to execute it quite yet. You can comment | |
1034 | out the command and then later fetch it from the value history | |
1035 | and remove the '#'. The kill ring is probably better, but some | |
1036 | people are in the habit of commenting things out. */ | |
1037 | if (*p1 == '#') | |
1038 | *p1 = '\0'; /* Found a comment. */ | |
9e0b60a8 | 1039 | |
d318976c FN |
1040 | /* Save into global buffer if appropriate. */ |
1041 | if (repeat) | |
1042 | { | |
1043 | if (linelength > linesize) | |
1044 | { | |
1045 | line = xrealloc (line, linelength); | |
1046 | linesize = linelength; | |
1047 | } | |
1048 | strcpy (line, linebuffer); | |
1049 | return line; | |
1050 | } | |
9e0b60a8 | 1051 | |
d318976c | 1052 | return linebuffer; |
9e0b60a8 JM |
1053 | } |
1054 | \f | |
1055 | /* Print the GDB banner. */ | |
1056 | void | |
fba45db2 | 1057 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1058 | { |
1059 | /* From GNU coding standards, first line is meant to be easy for a | |
1060 | program to parse, and is just canonical program name and version | |
1061 | number, which starts after last space. */ | |
1062 | ||
1063 | fprintf_filtered (stream, "GNU gdb %s\n", version); | |
1064 | ||
1065 | /* Second line is a copyright notice. */ | |
1066 | ||
ab830481 | 1067 | fprintf_filtered (stream, "Copyright 2005 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1068 | |
1069 | /* Following the copyright is a brief statement that the program is | |
1070 | free software, that users are free to copy and change it on | |
1071 | certain conditions, that it is covered by the GNU GPL, and that | |
1072 | there is no warranty. */ | |
1073 | ||
1074 | fprintf_filtered (stream, "\ | |
1075 | GDB is free software, covered by the GNU General Public License, and you are\n\ | |
1076 | welcome to change it and/or distribute copies of it under certain conditions.\n\ | |
1077 | Type \"show copying\" to see the conditions.\n\ | |
1078 | There is absolutely no warranty for GDB. Type \"show warranty\" for details.\n"); | |
1079 | ||
1080 | /* After the required info we print the configuration information. */ | |
1081 | ||
1082 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1083 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 JM |
1084 | { |
1085 | fprintf_filtered (stream, "--host=%s --target=%s", host_name, target_name); | |
1086 | } | |
1087 | else | |
1088 | { | |
1089 | fprintf_filtered (stream, "%s", host_name); | |
1090 | } | |
1091 | fprintf_filtered (stream, "\"."); | |
1092 | } | |
9e0b60a8 JM |
1093 | \f |
1094 | /* get_prompt: access method for the GDB prompt string. */ | |
1095 | ||
9e0b60a8 | 1096 | char * |
fba45db2 | 1097 | get_prompt (void) |
9e0b60a8 | 1098 | { |
362646f5 | 1099 | return PROMPT (0); |
9e0b60a8 JM |
1100 | } |
1101 | ||
1102 | void | |
fba45db2 | 1103 | set_prompt (char *s) |
9e0b60a8 JM |
1104 | { |
1105 | /* ??rehrauer: I don't know why this fails, since it looks as though | |
1106 | assignments to prompt are wrapped in calls to savestring... | |
c5aa993b | 1107 | if (prompt != NULL) |
b8c9b27d | 1108 | xfree (prompt); |
c5aa993b | 1109 | */ |
362646f5 | 1110 | PROMPT (0) = savestring (s, strlen (s)); |
9e0b60a8 | 1111 | } |
9e0b60a8 | 1112 | \f |
c5aa993b | 1113 | |
9e0b60a8 JM |
1114 | /* If necessary, make the user confirm that we should quit. Return |
1115 | non-zero if we should quit, zero if we shouldn't. */ | |
1116 | ||
1117 | int | |
fba45db2 | 1118 | quit_confirm (void) |
9e0b60a8 | 1119 | { |
39f77062 | 1120 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
9e0b60a8 JM |
1121 | { |
1122 | char *s; | |
1123 | ||
1124 | /* This is something of a hack. But there's no reliable way to | |
c5aa993b JM |
1125 | see if a GUI is running. The `use_windows' variable doesn't |
1126 | cut it. */ | |
9a4105ab | 1127 | if (deprecated_init_ui_hook) |
9e0b60a8 JM |
1128 | s = "A debugging session is active.\nDo you still want to close the debugger?"; |
1129 | else if (attach_flag) | |
1130 | s = "The program is running. Quit anyway (and detach it)? "; | |
1131 | else | |
1132 | s = "The program is running. Exit anyway? "; | |
1133 | ||
306d9ac5 | 1134 | if (!query ("%s", s)) |
9e0b60a8 JM |
1135 | return 0; |
1136 | } | |
1137 | ||
1138 | return 1; | |
1139 | } | |
1140 | ||
b0abbc58 | 1141 | /* Helper routine for quit_force that requires error handling. */ |
9e0b60a8 | 1142 | |
b0abbc58 | 1143 | struct qt_args |
9e0b60a8 | 1144 | { |
b0abbc58 JJ |
1145 | char *args; |
1146 | int from_tty; | |
1147 | }; | |
9e0b60a8 | 1148 | |
b0abbc58 JJ |
1149 | static int |
1150 | quit_target (void *arg) | |
1151 | { | |
1152 | struct qt_args *qt = (struct qt_args *)arg; | |
9e0b60a8 | 1153 | |
39f77062 | 1154 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
9e0b60a8 JM |
1155 | { |
1156 | if (attach_flag) | |
b0abbc58 | 1157 | target_detach (qt->args, qt->from_tty); |
9e0b60a8 | 1158 | else |
b0abbc58 | 1159 | target_kill (); |
9e0b60a8 JM |
1160 | } |
1161 | ||
1162 | /* UDI wants this, to kill the TIP. */ | |
f1c07ab0 | 1163 | target_close (¤t_target, 1); |
9e0b60a8 JM |
1164 | |
1165 | /* Save the history information if it is appropriate to do so. */ | |
1166 | if (write_history_p && history_filename) | |
1167 | write_history (history_filename); | |
1168 | ||
c5aa993b | 1169 | do_final_cleanups (ALL_CLEANUPS); /* Do any final cleanups before exiting */ |
9e0b60a8 | 1170 | |
b0abbc58 JJ |
1171 | return 0; |
1172 | } | |
1173 | ||
1174 | /* Quit without asking for confirmation. */ | |
1175 | ||
1176 | void | |
1177 | quit_force (char *args, int from_tty) | |
1178 | { | |
1179 | int exit_code = 0; | |
365c70b1 | 1180 | struct qt_args qt; |
b0abbc58 JJ |
1181 | |
1182 | /* An optional expression may be used to cause gdb to terminate with the | |
1183 | value of that expression. */ | |
1184 | if (args) | |
1185 | { | |
1186 | struct value *val = parse_and_eval (args); | |
1187 | ||
1188 | exit_code = (int) value_as_long (val); | |
1189 | } | |
4b0ad762 AS |
1190 | else if (return_child_result) |
1191 | exit_code = return_child_result_value; | |
b0abbc58 | 1192 | |
365c70b1 JJ |
1193 | qt.args = args; |
1194 | qt.from_tty = from_tty; | |
1195 | ||
b0abbc58 | 1196 | /* We want to handle any quit errors and exit regardless. */ |
365c70b1 | 1197 | catch_errors (quit_target, &qt, |
b0abbc58 JJ |
1198 | "Quitting: ", RETURN_MASK_ALL); |
1199 | ||
9e0b60a8 JM |
1200 | exit (exit_code); |
1201 | } | |
1202 | ||
9e0b60a8 JM |
1203 | /* Returns whether GDB is running on a terminal and whether the user |
1204 | desires that questions be asked of them on that terminal. */ | |
1205 | ||
1206 | int | |
fba45db2 | 1207 | input_from_terminal_p (void) |
9e0b60a8 JM |
1208 | { |
1209 | return gdb_has_a_terminal () && (instream == stdin) & caution; | |
1210 | } | |
1211 | \f | |
9e0b60a8 | 1212 | static void |
fba45db2 | 1213 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1214 | { |
c5aa993b JM |
1215 | *line = 0; /* Can't call dont_repeat here because we're not |
1216 | necessarily reading from stdin. */ | |
9e0b60a8 JM |
1217 | } |
1218 | \f | |
1219 | /* Functions to manipulate command line editing control variables. */ | |
1220 | ||
1221 | /* Number of commands to print in each call to show_commands. */ | |
1222 | #define Hist_print 10 | |
d318976c | 1223 | void |
fba45db2 | 1224 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1225 | { |
1226 | /* Index for history commands. Relative to history_base. */ | |
1227 | int offset; | |
1228 | ||
1229 | /* Number of the history entry which we are planning to display next. | |
1230 | Relative to history_base. */ | |
1231 | static int num = 0; | |
1232 | ||
1233 | /* The first command in the history which doesn't exist (i.e. one more | |
1234 | than the number of the last command). Relative to history_base. */ | |
1235 | int hist_len; | |
1236 | ||
9e0b60a8 JM |
1237 | /* Print out some of the commands from the command history. */ |
1238 | /* First determine the length of the history list. */ | |
1239 | hist_len = history_size; | |
1240 | for (offset = 0; offset < history_size; offset++) | |
1241 | { | |
1242 | if (!history_get (history_base + offset)) | |
1243 | { | |
1244 | hist_len = offset; | |
1245 | break; | |
1246 | } | |
1247 | } | |
1248 | ||
1249 | if (args) | |
1250 | { | |
1251 | if (args[0] == '+' && args[1] == '\0') | |
1252 | /* "info editing +" should print from the stored position. */ | |
1253 | ; | |
1254 | else | |
1255 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1256 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1257 | } |
1258 | /* "show commands" means print the last Hist_print commands. */ | |
1259 | else | |
1260 | { | |
1261 | num = hist_len - Hist_print; | |
1262 | } | |
1263 | ||
1264 | if (num < 0) | |
1265 | num = 0; | |
1266 | ||
1267 | /* If there are at least Hist_print commands, we want to display the last | |
1268 | Hist_print rather than, say, the last 6. */ | |
1269 | if (hist_len - num < Hist_print) | |
1270 | { | |
1271 | num = hist_len - Hist_print; | |
1272 | if (num < 0) | |
1273 | num = 0; | |
1274 | } | |
1275 | ||
1276 | for (offset = num; offset < num + Hist_print && offset < hist_len; offset++) | |
1277 | { | |
1278 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1279 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1280 | } |
1281 | ||
1282 | /* The next command we want to display is the next one that we haven't | |
1283 | displayed yet. */ | |
1284 | num += Hist_print; | |
1285 | ||
1286 | /* If the user repeats this command with return, it should do what | |
1287 | "show commands +" does. This is unnecessary if arg is null, | |
1288 | because "show commands +" is not useful after "show commands". */ | |
1289 | if (from_tty && args) | |
1290 | { | |
1291 | args[0] = '+'; | |
1292 | args[1] = '\0'; | |
1293 | } | |
1294 | } | |
1295 | ||
1296 | /* Called by do_setshow_command. */ | |
9e0b60a8 | 1297 | static void |
fba45db2 | 1298 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1299 | { |
1300 | if (history_size == INT_MAX) | |
1301 | unstifle_history (); | |
1302 | else if (history_size >= 0) | |
1303 | stifle_history (history_size); | |
1304 | else | |
1305 | { | |
1306 | history_size = INT_MAX; | |
8a3fe4f8 | 1307 | error (_("History size must be non-negative")); |
9e0b60a8 JM |
1308 | } |
1309 | } | |
1310 | ||
d318976c | 1311 | void |
fba45db2 | 1312 | set_history (char *args, int from_tty) |
9e0b60a8 | 1313 | { |
a3f17187 | 1314 | printf_unfiltered (_("\"set history\" must be followed by the name of a history subcommand.\n")); |
9e0b60a8 JM |
1315 | help_list (sethistlist, "set history ", -1, gdb_stdout); |
1316 | } | |
1317 | ||
d318976c | 1318 | void |
fba45db2 | 1319 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1320 | { |
1321 | cmd_show_list (showhistlist, from_tty, ""); | |
1322 | } | |
1323 | ||
1324 | int info_verbose = 0; /* Default verbose msgs off */ | |
1325 | ||
1326 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1327 | void |
fba45db2 | 1328 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1329 | { |
1330 | char *cmdname = "verbose"; | |
1331 | struct cmd_list_element *showcmd; | |
1332 | ||
1333 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1334 | ||
1335 | if (info_verbose) | |
1336 | { | |
1337 | c->doc = "Set verbose printing of informational messages."; | |
1338 | showcmd->doc = "Show verbose printing of informational messages."; | |
1339 | } | |
1340 | else | |
1341 | { | |
1342 | c->doc = "Set verbosity."; | |
1343 | showcmd->doc = "Show verbosity."; | |
1344 | } | |
1345 | } | |
1346 | ||
9e0b60a8 JM |
1347 | /* Init the history buffer. Note that we are called after the init file(s) |
1348 | * have been read so that the user can change the history file via his | |
1349 | * .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1350 | * overrides all of this. | |
1351 | */ | |
1352 | ||
1353 | void | |
fba45db2 | 1354 | init_history (void) |
9e0b60a8 JM |
1355 | { |
1356 | char *tmpenv; | |
1357 | ||
1358 | tmpenv = getenv ("HISTSIZE"); | |
1359 | if (tmpenv) | |
1360 | history_size = atoi (tmpenv); | |
1361 | else if (!history_size) | |
1362 | history_size = 256; | |
1363 | ||
1364 | stifle_history (history_size); | |
1365 | ||
1366 | tmpenv = getenv ("GDBHISTFILE"); | |
1367 | if (tmpenv) | |
c5aa993b JM |
1368 | history_filename = savestring (tmpenv, strlen (tmpenv)); |
1369 | else if (!history_filename) | |
1370 | { | |
1371 | /* We include the current directory so that if the user changes | |
1372 | directories the file written will be the same as the one | |
1373 | that was read. */ | |
a0b3c4fd | 1374 | #ifdef __MSDOS__ |
eb2f494a | 1375 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1376 | history_filename = concat (current_directory, "/_gdb_history", |
1377 | (char *)NULL); | |
a0b3c4fd | 1378 | #else |
1754f103 MK |
1379 | history_filename = concat (current_directory, "/.gdb_history", |
1380 | (char *)NULL); | |
a0b3c4fd | 1381 | #endif |
c5aa993b | 1382 | } |
9e0b60a8 JM |
1383 | read_history (history_filename); |
1384 | } | |
1385 | ||
920d2a44 AC |
1386 | static void |
1387 | show_new_async_prompt (struct ui_file *file, int from_tty, | |
1388 | struct cmd_list_element *c, const char *value) | |
1389 | { | |
1390 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1391 | } | |
1392 | ||
1393 | static void | |
1394 | show_async_command_editing_p (struct ui_file *file, int from_tty, | |
1395 | struct cmd_list_element *c, const char *value) | |
1396 | { | |
1397 | fprintf_filtered (file, _("\ | |
1398 | Editing of command lines as they are typed is %s.\n"), | |
1399 | value); | |
1400 | } | |
1401 | ||
1402 | static void | |
1403 | show_annotation_level (struct ui_file *file, int from_tty, | |
1404 | struct cmd_list_element *c, const char *value) | |
1405 | { | |
1406 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1407 | } | |
1408 | ||
1409 | static void | |
1410 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1411 | struct cmd_list_element *c, const char *value) | |
1412 | { | |
1413 | fprintf_filtered (file, _("\ | |
1414 | Notification of completion for asynchronous execution commands is %s.\n"), | |
1415 | value); | |
1416 | } | |
9e0b60a8 | 1417 | static void |
fba45db2 | 1418 | init_main (void) |
9e0b60a8 JM |
1419 | { |
1420 | struct cmd_list_element *c; | |
1421 | ||
362646f5 AC |
1422 | /* initialize the prompt stack to a simple "(gdb) " prompt or to |
1423 | whatever the DEFAULT_PROMPT is. */ | |
1424 | the_prompts.top = 0; | |
1425 | PREFIX (0) = ""; | |
1426 | PROMPT (0) = savestring (DEFAULT_PROMPT, strlen (DEFAULT_PROMPT)); | |
1427 | SUFFIX (0) = ""; | |
1428 | /* Set things up for annotation_level > 1, if the user ever decides | |
1429 | to use it. */ | |
1430 | async_annotation_suffix = "prompt"; | |
1431 | /* Set the variable associated with the setshow prompt command. */ | |
1432 | new_async_prompt = savestring (PROMPT (0), strlen (PROMPT (0))); | |
1433 | ||
1434 | /* If gdb was started with --annotate=2, this is equivalent to the | |
1435 | user entering the command 'set annotate 2' at the gdb prompt, so | |
1436 | we need to do extra processing. */ | |
1437 | if (annotation_level > 1) | |
1438 | set_async_annotation_level (NULL, 0, NULL); | |
9e0b60a8 JM |
1439 | |
1440 | /* Set the important stuff up for command editing. */ | |
1441 | command_editing_p = 1; | |
9e0b60a8 JM |
1442 | history_expansion_p = 0; |
1443 | write_history_p = 0; | |
1444 | ||
1445 | /* Setup important stuff for command line editing. */ | |
38017ce8 | 1446 | rl_completion_entry_function = readline_line_completion_function; |
51065942 | 1447 | rl_completer_word_break_characters = default_word_break_characters (); |
d318976c | 1448 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
9e0b60a8 | 1449 | rl_readline_name = "gdb"; |
7cb3ec5e | 1450 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 1451 | |
467d8519 TT |
1452 | /* The name for this defun comes from Bash, where it originated. |
1453 | 15 is Control-o, the same binding this function has in Bash. */ | |
1454 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
1455 | ||
4d28ad1e AC |
1456 | add_setshow_string_cmd ("prompt", class_support, |
1457 | &new_async_prompt, _("\ | |
1458 | Set gdb's prompt"), _("\ | |
1459 | Show gdb's prompt"), NULL, | |
1460 | set_async_prompt, | |
920d2a44 | 1461 | show_new_async_prompt, |
4d28ad1e | 1462 | &setlist, &showlist); |
9e0b60a8 | 1463 | |
1bedd215 AC |
1464 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
1465 | Don't repeat this command.\n\ | |
9e0b60a8 | 1466 | Primarily used inside of user-defined commands that should not be repeated when\n\ |
1bedd215 | 1467 | hitting return.")); |
9e0b60a8 | 1468 | |
5bf193a2 AC |
1469 | add_setshow_boolean_cmd ("editing", class_support, |
1470 | &async_command_editing_p, _("\ | |
1471 | Set editing of command lines as they are typed."), _("\ | |
1472 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
1473 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
1474 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 AC |
1475 | EMACS-like or VI-like commands like control-P or ESC."), |
1476 | set_async_editing_command, | |
920d2a44 | 1477 | show_async_command_editing_p, |
5bf193a2 AC |
1478 | &setlist, &showlist); |
1479 | ||
1480 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
1481 | Set saving of the history record on exit."), _("\ | |
1482 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 1483 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
1484 | Without an argument, saving is enabled."), |
1485 | NULL, | |
920d2a44 | 1486 | show_write_history_p, |
5bf193a2 | 1487 | &sethistlist, &showhistlist); |
9e0b60a8 | 1488 | |
4d28ad1e AC |
1489 | add_setshow_integer_cmd ("size", no_class, &history_size, _("\ |
1490 | Set the size of the command history,"), _("\ | |
1491 | Show the size of the command history,"), _("\ | |
1492 | ie. the number of previous commands to keep a record of."), | |
1493 | set_history_size_command, | |
920d2a44 | 1494 | show_history_size, |
4d28ad1e AC |
1495 | &sethistlist, &showhistlist); |
1496 | ||
1497 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ | |
1498 | Set the filename in which to record the command history"), _("\ | |
1499 | Show the filename in which to record the command history"), _("\ | |
1500 | (the list of previous commands of which a record is kept)."), | |
1501 | NULL, | |
920d2a44 | 1502 | show_history_filename, |
4d28ad1e | 1503 | &sethistlist, &showhistlist); |
9e0b60a8 | 1504 | |
5bf193a2 AC |
1505 | add_setshow_boolean_cmd ("confirm", class_support, &caution, _("\ |
1506 | Set whether to confirm potentially dangerous operations."), _("\ | |
1507 | Show whether to confirm potentially dangerous operations."), NULL, | |
1508 | NULL, | |
920d2a44 | 1509 | show_caution, |
5bf193a2 | 1510 | &setlist, &showlist); |
9e0b60a8 | 1511 | |
85c07804 AC |
1512 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
1513 | Set annotation_level."), _("\ | |
1514 | Show annotation_level."), _("\ | |
9e0b60a8 | 1515 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 AC |
1516 | 2 == output annotated suitably for use by programs that control GDB."), |
1517 | set_async_annotation_level, | |
920d2a44 | 1518 | show_annotation_level, |
85c07804 | 1519 | &setlist, &showlist); |
362646f5 | 1520 | |
5bf193a2 AC |
1521 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
1522 | &exec_done_display_p, _("\ | |
1523 | Set notification of completion for asynchronous execution commands."), _("\ | |
1524 | Show notification of completion for asynchronous execution commands."), _("\ | |
1525 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
1526 | NULL, | |
920d2a44 | 1527 | show_exec_done_display_p, |
5bf193a2 | 1528 | &setlist, &showlist); |
9e0b60a8 | 1529 | } |
64cdedad EZ |
1530 | |
1531 | void | |
1532 | gdb_init (char *argv0) | |
1533 | { | |
1534 | if (pre_init_ui_hook) | |
1535 | pre_init_ui_hook (); | |
1536 | ||
1537 | /* Run the init function of each source file */ | |
1538 | ||
1539 | getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); | |
1540 | current_directory = gdb_dirbuf; | |
1541 | ||
1542 | #ifdef __MSDOS__ | |
1543 | /* Make sure we return to the original directory upon exit, come | |
1544 | what may, since the OS doesn't do that for us. */ | |
1545 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
1546 | #endif | |
1547 | ||
1548 | init_cmd_lists (); /* This needs to be done first */ | |
1549 | initialize_targets (); /* Setup target_terminal macros for utils.c */ | |
1550 | initialize_utils (); /* Make errors and warnings possible */ | |
1551 | initialize_all_files (); | |
1552 | initialize_current_architecture (); | |
1553 | init_cli_cmds(); | |
1554 | init_main (); /* But that omits this file! Do it now */ | |
1555 | ||
362646f5 | 1556 | async_init_signals (); |
64cdedad EZ |
1557 | |
1558 | /* We need a default language for parsing expressions, so simple things like | |
1559 | "set width 0" won't fail if no language is explicitly set in a config file | |
1560 | or implicitly set by reading an executable during startup. */ | |
1561 | set_language (language_c); | |
1562 | expected_language = current_language; /* don't warn about the change. */ | |
1563 | ||
9a4105ab AC |
1564 | /* Allow another UI to initialize. If the UI fails to initialize, |
1565 | and it wants GDB to revert to the CLI, it should clear | |
1566 | deprecated_init_ui_hook. */ | |
1567 | if (deprecated_init_ui_hook) | |
1568 | deprecated_init_ui_hook (argv0); | |
64cdedad | 1569 | } |