Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
4389a95a | 2 | |
618f726f | 3 | Copyright (C) 1986-2016 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" | |
c906108c SS |
21 | #include "top.h" |
22 | #include "target.h" | |
23 | #include "inferior.h" | |
1adeb98a FN |
24 | #include "symfile.h" |
25 | #include "gdbcore.h" | |
c906108c SS |
26 | #include "getopt.h" |
27 | ||
28 | #include <sys/types.h> | |
53ce3c39 | 29 | #include <sys/stat.h> |
c906108c | 30 | #include <ctype.h> |
9e0b60a8 | 31 | #include "event-loop.h" |
8b93c638 | 32 | #include "ui-out.h" |
6457bd47 | 33 | |
4389a95a | 34 | #include "interps.h" |
f15ab4a7 | 35 | #include "main.h" |
29b0e8a2 | 36 | #include "source.h" |
4cc23ede | 37 | #include "cli/cli-cmds.h" |
7f6130ff | 38 | #include "objfiles.h" |
e2207b9a | 39 | #include "auto-load.h" |
bd712aed | 40 | #include "maint.h" |
29b0e8a2 | 41 | |
b5981e5a | 42 | #include "filenames.h" |
614c279d | 43 | #include "filestuff.h" |
992c7d70 | 44 | #include <signal.h> |
94696ad3 | 45 | #include "event-top.h" |
98880d46 | 46 | #include "infrun.h" |
f348d89a | 47 | #include "signals-state-save-restore.h" |
b5981e5a | 48 | |
4389a95a AC |
49 | /* The selected interpreter. This will be used as a set command |
50 | variable, so it should always be malloc'ed - since | |
371d5dec | 51 | do_setshow_command will free it. */ |
fb40c209 | 52 | char *interpreter_p; |
fb40c209 | 53 | |
371d5dec | 54 | /* Whether dbx commands will be handled. */ |
c906108c SS |
55 | int dbx_commands = 0; |
56 | ||
030292b7 DJ |
57 | /* System root path, used to find libraries etc. */ |
58 | char *gdb_sysroot = 0; | |
59 | ||
b14b1491 TT |
60 | /* GDB datadir, used to store data files. */ |
61 | char *gdb_datadir = 0; | |
62 | ||
e64e0392 DE |
63 | /* Non-zero if GDB_DATADIR was provided on the command line. |
64 | This doesn't track whether data-directory is set later from the | |
65 | command line, but we don't reread system.gdbinit when that happens. */ | |
66 | static int gdb_datadir_provided = 0; | |
67 | ||
0c4a4063 DE |
68 | /* If gdb was configured with --with-python=/path, |
69 | the possibly relocated path to python's lib directory. */ | |
70 | char *python_libdir = 0; | |
71 | ||
371d5dec | 72 | /* Target IO streams. */ |
449092f6 | 73 | struct ui_file *gdb_stdtargin; |
22e8e3c7 | 74 | struct ui_file *gdb_stdtarg; |
449092f6 | 75 | struct ui_file *gdb_stdtargerr; |
c906108c | 76 | |
7c953934 TT |
77 | /* True if --batch or --batch-silent was seen. */ |
78 | int batch_flag = 0; | |
79 | ||
1a088d06 AS |
80 | /* Support for the --batch-silent option. */ |
81 | int batch_silent = 0; | |
82 | ||
4b0ad762 AS |
83 | /* Support for --return-child-result option. |
84 | Set the default to -1 to return error in the case | |
85 | that the program does not run or does not complete. */ | |
86 | int return_child_result = 0; | |
87 | int return_child_result_value = -1; | |
88 | ||
c906108c | 89 | |
16e7150e JG |
90 | /* GDB as it has been invoked from the command line (i.e. argv[0]). */ |
91 | static char *gdb_program_name; | |
92 | ||
c88a1531 AB |
93 | /* Return read only pointer to GDB_PROGRAM_NAME. */ |
94 | const char * | |
95 | get_gdb_program_name (void) | |
96 | { | |
97 | return gdb_program_name; | |
98 | } | |
99 | ||
d9fcf2fb | 100 | static void print_gdb_help (struct ui_file *); |
c906108c | 101 | |
8d551b02 DE |
102 | /* Set the data-directory parameter to NEW_DATADIR. |
103 | If NEW_DATADIR is not a directory then a warning is printed. | |
104 | We don't signal an error for backward compatibility. */ | |
105 | ||
106 | void | |
107 | set_gdb_data_directory (const char *new_datadir) | |
108 | { | |
109 | struct stat st; | |
110 | ||
111 | if (stat (new_datadir, &st) < 0) | |
112 | { | |
113 | int save_errno = errno; | |
114 | ||
115 | fprintf_unfiltered (gdb_stderr, "Warning: "); | |
116 | print_sys_errmsg (new_datadir, save_errno); | |
117 | } | |
118 | else if (!S_ISDIR (st.st_mode)) | |
119 | warning (_("%s is not a directory."), new_datadir); | |
120 | ||
121 | xfree (gdb_datadir); | |
122 | gdb_datadir = gdb_realpath (new_datadir); | |
123 | ||
124 | /* gdb_realpath won't return an absolute path if the path doesn't exist, | |
125 | but we still want to record an absolute path here. If the user entered | |
126 | "../foo" and "../foo" doesn't exist then we'll record $(pwd)/../foo which | |
127 | isn't canonical, but that's ok. */ | |
128 | if (!IS_ABSOLUTE_PATH (gdb_datadir)) | |
129 | { | |
130 | char *abs_datadir = gdb_abspath (gdb_datadir); | |
131 | ||
132 | xfree (gdb_datadir); | |
133 | gdb_datadir = abs_datadir; | |
134 | } | |
135 | } | |
136 | ||
b14b1491 TT |
137 | /* Relocate a file or directory. PROGNAME is the name by which gdb |
138 | was invoked (i.e., argv[0]). INITIAL is the default value for the | |
139 | file or directory. FLAG is true if the value is relocatable, false | |
140 | otherwise. Returns a newly allocated string; this may return NULL | |
141 | under the same conditions as make_relative_prefix. */ | |
478aac75 | 142 | |
b14b1491 TT |
143 | static char * |
144 | relocate_path (const char *progname, const char *initial, int flag) | |
145 | { | |
146 | if (flag) | |
147 | return make_relative_prefix (progname, BINDIR, initial); | |
148 | return xstrdup (initial); | |
149 | } | |
150 | ||
151 | /* Like relocate_path, but specifically checks for a directory. | |
152 | INITIAL is relocated according to the rules of relocate_path. If | |
153 | the result is a directory, it is used; otherwise, INITIAL is used. | |
154 | The chosen directory is then canonicalized using lrealpath. This | |
155 | function always returns a newly-allocated string. */ | |
478aac75 DE |
156 | |
157 | char * | |
158 | relocate_gdb_directory (const char *initial, int flag) | |
b14b1491 TT |
159 | { |
160 | char *dir; | |
161 | ||
478aac75 | 162 | dir = relocate_path (gdb_program_name, initial, flag); |
b14b1491 TT |
163 | if (dir) |
164 | { | |
165 | struct stat s; | |
166 | ||
78a8b30e | 167 | if (*dir == '\0' || stat (dir, &s) != 0 || !S_ISDIR (s.st_mode)) |
b14b1491 TT |
168 | { |
169 | xfree (dir); | |
170 | dir = NULL; | |
171 | } | |
172 | } | |
173 | if (!dir) | |
174 | dir = xstrdup (initial); | |
175 | ||
176 | /* Canonicalize the directory. */ | |
177 | if (*dir) | |
178 | { | |
179 | char *canon_sysroot = lrealpath (dir); | |
b8d56208 | 180 | |
b14b1491 TT |
181 | if (canon_sysroot) |
182 | { | |
183 | xfree (dir); | |
184 | dir = canon_sysroot; | |
185 | } | |
186 | } | |
187 | ||
188 | return dir; | |
189 | } | |
190 | ||
371d5dec MS |
191 | /* Compute the locations of init files that GDB should source and |
192 | return them in SYSTEM_GDBINIT, HOME_GDBINIT, LOCAL_GDBINIT. If | |
193 | there is no system gdbinit (resp. home gdbinit and local gdbinit) | |
194 | to be loaded, then SYSTEM_GDBINIT (resp. HOME_GDBINIT and | |
195 | LOCAL_GDBINIT) is set to NULL. */ | |
16e7150e | 196 | static void |
50dd9793 PA |
197 | get_init_files (const char **system_gdbinit, |
198 | const char **home_gdbinit, | |
199 | const char **local_gdbinit) | |
16e7150e | 200 | { |
50dd9793 | 201 | static const char *sysgdbinit = NULL; |
16e7150e | 202 | static char *homeinit = NULL; |
50dd9793 | 203 | static const char *localinit = NULL; |
16e7150e JG |
204 | static int initialized = 0; |
205 | ||
206 | if (!initialized) | |
207 | { | |
208 | struct stat homebuf, cwdbuf, s; | |
e64e0392 | 209 | char *homedir; |
16e7150e | 210 | |
b14b1491 | 211 | if (SYSTEM_GDBINIT[0]) |
16e7150e | 212 | { |
e64e0392 DE |
213 | int datadir_len = strlen (GDB_DATADIR); |
214 | int sys_gdbinit_len = strlen (SYSTEM_GDBINIT); | |
215 | char *relocated_sysgdbinit; | |
216 | ||
217 | /* If SYSTEM_GDBINIT lives in data-directory, and data-directory | |
218 | has been provided, search for SYSTEM_GDBINIT there. */ | |
219 | if (gdb_datadir_provided | |
220 | && datadir_len < sys_gdbinit_len | |
b5981e5a EZ |
221 | && filename_ncmp (SYSTEM_GDBINIT, GDB_DATADIR, datadir_len) == 0 |
222 | && IS_DIR_SEPARATOR (SYSTEM_GDBINIT[datadir_len])) | |
e64e0392 DE |
223 | { |
224 | /* Append the part of SYSTEM_GDBINIT that follows GDB_DATADIR | |
225 | to gdb_datadir. */ | |
226 | char *tmp_sys_gdbinit = xstrdup (SYSTEM_GDBINIT + datadir_len); | |
227 | char *p; | |
228 | ||
b5981e5a | 229 | for (p = tmp_sys_gdbinit; IS_DIR_SEPARATOR (*p); ++p) |
e64e0392 DE |
230 | continue; |
231 | relocated_sysgdbinit = concat (gdb_datadir, SLASH_STRING, p, | |
b36cec19 | 232 | (char *) NULL); |
e64e0392 DE |
233 | xfree (tmp_sys_gdbinit); |
234 | } | |
235 | else | |
236 | { | |
237 | relocated_sysgdbinit = relocate_path (gdb_program_name, | |
238 | SYSTEM_GDBINIT, | |
239 | SYSTEM_GDBINIT_RELOCATABLE); | |
240 | } | |
b14b1491 | 241 | if (relocated_sysgdbinit && stat (relocated_sysgdbinit, &s) == 0) |
16e7150e JG |
242 | sysgdbinit = relocated_sysgdbinit; |
243 | else | |
244 | xfree (relocated_sysgdbinit); | |
245 | } | |
16e7150e JG |
246 | |
247 | homedir = getenv ("HOME"); | |
248 | ||
249 | /* If the .gdbinit file in the current directory is the same as | |
250 | the $HOME/.gdbinit file, it should not be sourced. homebuf | |
025bb325 | 251 | and cwdbuf are used in that purpose. Make sure that the stats |
16e7150e JG |
252 | are zero in case one of them fails (this guarantees that they |
253 | won't match if either exists). */ | |
254 | ||
255 | memset (&homebuf, 0, sizeof (struct stat)); | |
256 | memset (&cwdbuf, 0, sizeof (struct stat)); | |
257 | ||
258 | if (homedir) | |
259 | { | |
260 | homeinit = xstrprintf ("%s/%s", homedir, gdbinit); | |
261 | if (stat (homeinit, &homebuf) != 0) | |
262 | { | |
263 | xfree (homeinit); | |
264 | homeinit = NULL; | |
265 | } | |
266 | } | |
267 | ||
268 | if (stat (gdbinit, &cwdbuf) == 0) | |
269 | { | |
270 | if (!homeinit | |
271 | || memcmp ((char *) &homebuf, (char *) &cwdbuf, | |
272 | sizeof (struct stat))) | |
273 | localinit = gdbinit; | |
274 | } | |
275 | ||
276 | initialized = 1; | |
277 | } | |
278 | ||
279 | *system_gdbinit = sysgdbinit; | |
280 | *home_gdbinit = homeinit; | |
281 | *local_gdbinit = localinit; | |
282 | } | |
283 | ||
992c7d70 GB |
284 | /* Try to set up an alternate signal stack for SIGSEGV handlers. |
285 | This allows us to handle SIGSEGV signals generated when the | |
286 | normal process stack is exhausted. If this stack is not set | |
287 | up (sigaltstack is unavailable or fails) and a SIGSEGV is | |
288 | generated when the normal stack is exhausted then the program | |
289 | will behave as though no SIGSEGV handler was installed. */ | |
290 | ||
291 | static void | |
292 | setup_alternate_signal_stack (void) | |
293 | { | |
294 | #ifdef HAVE_SIGALTSTACK | |
295 | stack_t ss; | |
296 | ||
f39c07ac JB |
297 | /* FreeBSD versions older than 11.0 use char * for ss_sp instead of |
298 | void *. This cast works with both types. */ | |
299 | ss.ss_sp = (char *) xmalloc (SIGSTKSZ); | |
992c7d70 GB |
300 | ss.ss_size = SIGSTKSZ; |
301 | ss.ss_flags = 0; | |
302 | ||
303 | sigaltstack(&ss, NULL); | |
304 | #endif | |
305 | } | |
306 | ||
11cf8741 | 307 | /* Call command_loop. If it happens to return, pass that through as a |
371d5dec | 308 | non-zero return status. */ |
11cf8741 JM |
309 | |
310 | static int | |
311 | captured_command_loop (void *data) | |
c906108c | 312 | { |
f38d3ad1 PA |
313 | struct ui *ui = current_ui; |
314 | ||
bb5291d0 | 315 | /* Top-level execution commands can be run in the background from |
b4a14fd0 | 316 | here on. */ |
cb814510 | 317 | current_ui->async = 1; |
b4a14fd0 | 318 | |
3b12939d PA |
319 | /* Give the interpreter a chance to print a prompt, if necessary */ |
320 | if (ui->prompt_state != PROMPT_BLOCKED) | |
321 | interp_pre_command_loop (top_level_interpreter ()); | |
b2d86570 PA |
322 | |
323 | /* Now it's time to start the event loop. */ | |
324 | start_event_loop (); | |
325 | ||
11cf8741 JM |
326 | /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton |
327 | would clean things up (restoring the cleanup chain) to the state | |
328 | they were just prior to the call. Technically, this means that | |
e26cc349 | 329 | the do_cleanups() below is redundant. Unfortunately, many FUNCs |
11cf8741 JM |
330 | are not that well behaved. do_cleanups should either be replaced |
331 | with a do_cleanups call (to cover the problem) or an assertion | |
371d5dec | 332 | check to detect bad FUNCs code. */ |
6328eb38 | 333 | do_cleanups (all_cleanups ()); |
11cf8741 | 334 | /* If the command_loop returned, normally (rather than threw an |
025bb325 | 335 | error) we try to quit. If the quit is aborted, catch_errors() |
11cf8741 | 336 | which called this catch the signal and restart the command |
371d5dec | 337 | loop. */ |
268a799a | 338 | quit_command (NULL, ui->instream == ui->stdin_stream); |
11cf8741 JM |
339 | return 1; |
340 | } | |
341 | ||
94696ad3 PA |
342 | /* Handle command errors thrown from within |
343 | catch_command_errors/catch_command_errors_const. */ | |
344 | ||
345 | static int | |
284e6217 | 346 | handle_command_errors (struct gdb_exception e) |
94696ad3 PA |
347 | { |
348 | if (e.reason < 0) | |
349 | { | |
350 | exception_print (gdb_stderr, e); | |
351 | ||
352 | /* If any exception escaped to here, we better enable stdin. | |
353 | Otherwise, any command that calls async_disable_stdin, and | |
354 | then throws, will leave stdin inoperable. */ | |
355 | async_enable_stdin (); | |
356 | return 0; | |
357 | } | |
358 | return 1; | |
359 | } | |
360 | ||
9d1e69a2 PA |
361 | /* Type of the command callback passed to catch_command_errors. */ |
362 | ||
363 | typedef void (catch_command_errors_ftype) (char *, int); | |
364 | ||
365 | /* Wrap calls to commands run before the event loop is started. */ | |
366 | ||
367 | static int | |
368 | catch_command_errors (catch_command_errors_ftype *command, | |
97c18565 | 369 | char *arg, int from_tty) |
9d1e69a2 | 370 | { |
492d29ea | 371 | TRY |
9d1e69a2 | 372 | { |
3b12939d | 373 | int was_sync = current_ui->prompt_state == PROMPT_BLOCKED; |
98880d46 | 374 | |
9d1e69a2 | 375 | command (arg, from_tty); |
98880d46 PA |
376 | |
377 | maybe_wait_sync_command_done (was_sync); | |
9d1e69a2 | 378 | } |
492d29ea PA |
379 | CATCH (e, RETURN_MASK_ALL) |
380 | { | |
381 | return handle_command_errors (e); | |
382 | } | |
383 | END_CATCH | |
384 | ||
385 | return 1; | |
9d1e69a2 PA |
386 | } |
387 | ||
388 | /* Type of the command callback passed to catch_command_errors_const. */ | |
389 | ||
390 | typedef void (catch_command_errors_const_ftype) (const char *, int); | |
391 | ||
392 | /* Like catch_command_errors, but works with const command and args. */ | |
393 | ||
394 | static int | |
395 | catch_command_errors_const (catch_command_errors_const_ftype *command, | |
97c18565 | 396 | const char *arg, int from_tty) |
9d1e69a2 | 397 | { |
492d29ea | 398 | TRY |
9d1e69a2 | 399 | { |
3b12939d | 400 | int was_sync = current_ui->prompt_state == PROMPT_BLOCKED; |
98880d46 | 401 | |
9d1e69a2 | 402 | command (arg, from_tty); |
98880d46 PA |
403 | |
404 | maybe_wait_sync_command_done (was_sync); | |
9d1e69a2 | 405 | } |
492d29ea PA |
406 | CATCH (e, RETURN_MASK_ALL) |
407 | { | |
408 | return handle_command_errors (e); | |
409 | } | |
410 | END_CATCH | |
411 | ||
412 | return 1; | |
9d1e69a2 PA |
413 | } |
414 | ||
52059ffd TT |
415 | /* Type of this option. */ |
416 | enum cmdarg_kind | |
417 | { | |
418 | /* Option type -x. */ | |
419 | CMDARG_FILE, | |
26743505 | 420 | |
52059ffd TT |
421 | /* Option type -ex. */ |
422 | CMDARG_COMMAND, | |
8320cc4f | 423 | |
52059ffd TT |
424 | /* Option type -ix. */ |
425 | CMDARG_INIT_FILE, | |
8320cc4f | 426 | |
52059ffd TT |
427 | /* Option type -iex. */ |
428 | CMDARG_INIT_COMMAND | |
429 | }; | |
430 | ||
431 | /* Arguments of --command option and its counterpart. */ | |
432 | typedef struct cmdarg { | |
433 | /* Type of this option. */ | |
434 | enum cmdarg_kind type; | |
26743505 JK |
435 | |
436 | /* Value of this option - filename or the GDB command itself. String memory | |
437 | is not owned by this structure despite it is 'const'. */ | |
438 | char *string; | |
439 | } cmdarg_s; | |
440 | ||
441 | /* Define type VEC (cmdarg_s). */ | |
442 | DEF_VEC_O (cmdarg_s); | |
443 | ||
11cf8741 JM |
444 | static int |
445 | captured_main (void *data) | |
446 | { | |
19ba03f4 | 447 | struct captured_main_args *context = (struct captured_main_args *) data; |
11cf8741 JM |
448 | int argc = context->argc; |
449 | char **argv = context->argv; | |
c906108c | 450 | static int quiet = 0; |
552c04a7 | 451 | static int set_args = 0; |
07540c15 | 452 | static int inhibit_home_gdbinit = 0; |
c906108c SS |
453 | |
454 | /* Pointers to various arguments from command line. */ | |
455 | char *symarg = NULL; | |
456 | char *execarg = NULL; | |
a4d9b460 | 457 | char *pidarg = NULL; |
c906108c | 458 | char *corearg = NULL; |
a4d9b460 | 459 | char *pid_or_core_arg = NULL; |
c906108c SS |
460 | char *cdarg = NULL; |
461 | char *ttyarg = NULL; | |
462 | ||
371d5dec MS |
463 | /* These are static so that we can take their address in an |
464 | initializer. */ | |
c906108c SS |
465 | static int print_help; |
466 | static int print_version; | |
6eaaf48b | 467 | static int print_configuration; |
c906108c SS |
468 | |
469 | /* Pointers to all arguments of --command option. */ | |
26743505 JK |
470 | VEC (cmdarg_s) *cmdarg_vec = NULL; |
471 | struct cmdarg *cmdarg_p; | |
c906108c SS |
472 | |
473 | /* Indices of all arguments of --directory option. */ | |
474 | char **dirarg; | |
475 | /* Allocated size. */ | |
476 | int dirsize; | |
477 | /* Number of elements used. */ | |
478 | int ndir; | |
c5aa993b | 479 | |
16e7150e | 480 | /* gdb init files. */ |
50dd9793 PA |
481 | const char *system_gdbinit; |
482 | const char *home_gdbinit; | |
483 | const char *local_gdbinit; | |
c906108c | 484 | |
52f0bd74 | 485 | int i; |
88a1906b | 486 | int save_auto_load; |
7f6130ff | 487 | struct objfile *objfile; |
c906108c | 488 | |
e565b837 DE |
489 | struct cleanup *pre_stat_chain; |
490 | ||
491 | #ifdef HAVE_SBRK | |
492 | /* Set this before calling make_command_stats_cleanup. */ | |
493 | lim_at_start = (char *) sbrk (0); | |
494 | #endif | |
495 | ||
496 | pre_stat_chain = make_command_stats_cleanup (0); | |
c906108c | 497 | |
0fbb3da7 TT |
498 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) |
499 | setlocale (LC_MESSAGES, ""); | |
500 | #endif | |
501 | #if defined (HAVE_SETLOCALE) | |
502 | setlocale (LC_CTYPE, ""); | |
503 | #endif | |
504 | bindtextdomain (PACKAGE, LOCALEDIR); | |
505 | textdomain (PACKAGE); | |
506 | ||
5484b13a | 507 | bfd_init (); |
614c279d | 508 | notice_open_fds (); |
f348d89a | 509 | save_original_signals_state (); |
5484b13a | 510 | |
26743505 | 511 | make_cleanup (VEC_cleanup (cmdarg_s), &cmdarg_vec); |
c906108c SS |
512 | dirsize = 1; |
513 | dirarg = (char **) xmalloc (dirsize * sizeof (*dirarg)); | |
514 | ndir = 0; | |
515 | ||
2669cade | 516 | saved_command_line = (char *) xstrdup (""); |
694ec099 | 517 | |
ffa4ac95 YQ |
518 | #ifdef __MINGW32__ |
519 | /* Ensure stderr is unbuffered. A Cygwin pty or pipe is implemented | |
520 | as a Windows pipe, and Windows buffers on pipes. */ | |
521 | setvbuf (stderr, NULL, _IONBF, BUFSIZ); | |
522 | #endif | |
523 | ||
98d9f24e PA |
524 | main_ui = new_ui (stdin, stdout, stderr); |
525 | current_ui = main_ui; | |
ffa4ac95 | 526 | |
449092f6 CV |
527 | gdb_stdtargerr = gdb_stderr; /* for moment */ |
528 | gdb_stdtargin = gdb_stdin; /* for moment */ | |
c906108c | 529 | |
b5981e5a EZ |
530 | #ifdef __MINGW32__ |
531 | /* On Windows, argv[0] is not necessarily set to absolute form when | |
532 | GDB is found along PATH, without which relocation doesn't work. */ | |
533 | gdb_program_name = windows_get_absolute_argv0 (argv[0]); | |
534 | #else | |
16e7150e | 535 | gdb_program_name = xstrdup (argv[0]); |
b5981e5a | 536 | #endif |
16e7150e | 537 | |
075c7033 GB |
538 | /* Prefix warning messages with the command name. */ |
539 | warning_pre_print = xstrprintf ("%s: warning: ", gdb_program_name); | |
540 | ||
bf1d7d9c | 541 | if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf))) |
075c7033 GB |
542 | perror_warning_with_name (_("error finding working directory")); |
543 | ||
bf1d7d9c JB |
544 | current_directory = gdb_dirbuf; |
545 | ||
030292b7 | 546 | /* Set the sysroot path. */ |
478aac75 DE |
547 | gdb_sysroot = relocate_gdb_directory (TARGET_SYSTEM_ROOT, |
548 | TARGET_SYSTEM_ROOT_RELOCATABLE); | |
030292b7 | 549 | |
fed040c6 GB |
550 | if (gdb_sysroot == NULL || *gdb_sysroot == '\0') |
551 | { | |
552 | xfree (gdb_sysroot); | |
553 | gdb_sysroot = xstrdup (TARGET_SYSROOT_PREFIX); | |
554 | } | |
555 | ||
478aac75 DE |
556 | debug_file_directory = relocate_gdb_directory (DEBUGDIR, |
557 | DEBUGDIR_RELOCATABLE); | |
030292b7 | 558 | |
478aac75 DE |
559 | gdb_datadir = relocate_gdb_directory (GDB_DATADIR, |
560 | GDB_DATADIR_RELOCATABLE); | |
aa28a74e | 561 | |
0c4a4063 | 562 | #ifdef WITH_PYTHON_PATH |
e6040cbd MS |
563 | { |
564 | /* For later use in helping Python find itself. */ | |
b36cec19 | 565 | char *tmp = concat (WITH_PYTHON_PATH, SLASH_STRING, "lib", (char *) NULL); |
e6040cbd | 566 | |
478aac75 | 567 | python_libdir = relocate_gdb_directory (tmp, PYTHON_PATH_RELOCATABLE); |
e6040cbd MS |
568 | xfree (tmp); |
569 | } | |
0c4a4063 DE |
570 | #endif |
571 | ||
29b0e8a2 JM |
572 | #ifdef RELOC_SRCDIR |
573 | add_substitute_path_rule (RELOC_SRCDIR, | |
b5981e5a | 574 | make_relative_prefix (gdb_program_name, BINDIR, |
29b0e8a2 JM |
575 | RELOC_SRCDIR)); |
576 | #endif | |
577 | ||
4389a95a | 578 | /* There will always be an interpreter. Either the one passed into |
e46e5ccd KS |
579 | this captured main, or one specified by the user at start up, or |
580 | the console. Initialize the interpreter to the one requested by | |
581 | the application. */ | |
11bf1490 | 582 | interpreter_p = xstrdup (context->interpreter_p); |
4389a95a | 583 | |
c906108c SS |
584 | /* Parse arguments and options. */ |
585 | { | |
586 | int c; | |
587 | /* When var field is 0, use flag field to record the equivalent | |
588 | short option (or arbitrary numbers starting at 10 for those | |
589 | with no equivalent). */ | |
49c7e338 AC |
590 | enum { |
591 | OPT_SE = 10, | |
592 | OPT_CD, | |
593 | OPT_ANNOTATE, | |
594 | OPT_STATISTICS, | |
42fa7c0f AC |
595 | OPT_TUI, |
596 | OPT_NOWINDOWS, | |
8320cc4f JK |
597 | OPT_WINDOWS, |
598 | OPT_IX, | |
599 | OPT_IEX | |
49c7e338 | 600 | }; |
c906108c | 601 | static struct option long_options[] = |
c5aa993b | 602 | { |
49c7e338 | 603 | {"tui", no_argument, 0, OPT_TUI}, |
c5aa993b JM |
604 | {"dbx", no_argument, &dbx_commands, 1}, |
605 | {"readnow", no_argument, &readnow_symbol_files, 1}, | |
606 | {"r", no_argument, &readnow_symbol_files, 1}, | |
c5aa993b JM |
607 | {"quiet", no_argument, &quiet, 1}, |
608 | {"q", no_argument, &quiet, 1}, | |
609 | {"silent", no_argument, &quiet, 1}, | |
07540c15 | 610 | {"nh", no_argument, &inhibit_home_gdbinit, 1}, |
c5aa993b JM |
611 | {"nx", no_argument, &inhibit_gdbinit, 1}, |
612 | {"n", no_argument, &inhibit_gdbinit, 1}, | |
1a088d06 | 613 | {"batch-silent", no_argument, 0, 'B'}, |
7c953934 | 614 | {"batch", no_argument, &batch_flag, 1}, |
c5aa993b | 615 | |
371d5dec MS |
616 | /* This is a synonym for "--annotate=1". --annotate is now |
617 | preferred, but keep this here for a long time because people | |
618 | will be running emacses which use --fullname. */ | |
c5aa993b JM |
619 | {"fullname", no_argument, 0, 'f'}, |
620 | {"f", no_argument, 0, 'f'}, | |
621 | ||
49c7e338 | 622 | {"annotate", required_argument, 0, OPT_ANNOTATE}, |
c5aa993b | 623 | {"help", no_argument, &print_help, 1}, |
49c7e338 | 624 | {"se", required_argument, 0, OPT_SE}, |
c5aa993b JM |
625 | {"symbols", required_argument, 0, 's'}, |
626 | {"s", required_argument, 0, 's'}, | |
627 | {"exec", required_argument, 0, 'e'}, | |
628 | {"e", required_argument, 0, 'e'}, | |
629 | {"core", required_argument, 0, 'c'}, | |
630 | {"c", required_argument, 0, 'c'}, | |
00546b04 MS |
631 | {"pid", required_argument, 0, 'p'}, |
632 | {"p", required_argument, 0, 'p'}, | |
c5aa993b | 633 | {"command", required_argument, 0, 'x'}, |
8a5a3c82 | 634 | {"eval-command", required_argument, 0, 'X'}, |
c5aa993b | 635 | {"version", no_argument, &print_version, 1}, |
6eaaf48b | 636 | {"configuration", no_argument, &print_configuration, 1}, |
c5aa993b | 637 | {"x", required_argument, 0, 'x'}, |
8a5a3c82 | 638 | {"ex", required_argument, 0, 'X'}, |
8320cc4f JK |
639 | {"init-command", required_argument, 0, OPT_IX}, |
640 | {"init-eval-command", required_argument, 0, OPT_IEX}, | |
641 | {"ix", required_argument, 0, OPT_IX}, | |
642 | {"iex", required_argument, 0, OPT_IEX}, | |
3fc11d3e JM |
643 | #ifdef GDBTK |
644 | {"tclcommand", required_argument, 0, 'z'}, | |
645 | {"enable-external-editor", no_argument, 0, 'y'}, | |
646 | {"editor-command", required_argument, 0, 'w'}, | |
647 | #endif | |
8b93c638 JM |
648 | {"ui", required_argument, 0, 'i'}, |
649 | {"interpreter", required_argument, 0, 'i'}, | |
650 | {"i", required_argument, 0, 'i'}, | |
c5aa993b | 651 | {"directory", required_argument, 0, 'd'}, |
c4093a6a | 652 | {"d", required_argument, 0, 'd'}, |
aae1c79a | 653 | {"data-directory", required_argument, 0, 'D'}, |
8d551b02 | 654 | {"D", required_argument, 0, 'D'}, |
49c7e338 | 655 | {"cd", required_argument, 0, OPT_CD}, |
c5aa993b JM |
656 | {"tty", required_argument, 0, 't'}, |
657 | {"baud", required_argument, 0, 'b'}, | |
658 | {"b", required_argument, 0, 'b'}, | |
42fa7c0f AC |
659 | {"nw", no_argument, NULL, OPT_NOWINDOWS}, |
660 | {"nowindows", no_argument, NULL, OPT_NOWINDOWS}, | |
661 | {"w", no_argument, NULL, OPT_WINDOWS}, | |
662 | {"windows", no_argument, NULL, OPT_WINDOWS}, | |
49c7e338 | 663 | {"statistics", no_argument, 0, OPT_STATISTICS}, |
c5aa993b | 664 | {"write", no_argument, &write_files, 1}, |
552c04a7 | 665 | {"args", no_argument, &set_args, 1}, |
39c76ca3 | 666 | {"l", required_argument, 0, 'l'}, |
4b0ad762 | 667 | {"return-child-result", no_argument, &return_child_result, 1}, |
c5aa993b JM |
668 | {0, no_argument, 0, 0} |
669 | }; | |
c906108c SS |
670 | |
671 | while (1) | |
672 | { | |
673 | int option_index; | |
674 | ||
675 | c = getopt_long_only (argc, argv, "", | |
676 | long_options, &option_index); | |
552c04a7 | 677 | if (c == EOF || set_args) |
c906108c SS |
678 | break; |
679 | ||
680 | /* Long option that takes an argument. */ | |
681 | if (c == 0 && long_options[option_index].flag == 0) | |
682 | c = long_options[option_index].val; | |
683 | ||
684 | switch (c) | |
685 | { | |
686 | case 0: | |
687 | /* Long option that just sets a flag. */ | |
688 | break; | |
49c7e338 | 689 | case OPT_SE: |
c906108c SS |
690 | symarg = optarg; |
691 | execarg = optarg; | |
692 | break; | |
49c7e338 | 693 | case OPT_CD: |
c906108c SS |
694 | cdarg = optarg; |
695 | break; | |
49c7e338 | 696 | case OPT_ANNOTATE: |
c906108c SS |
697 | /* FIXME: what if the syntax is wrong (e.g. not digits)? */ |
698 | annotation_level = atoi (optarg); | |
699 | break; | |
49c7e338 | 700 | case OPT_STATISTICS: |
c906108c | 701 | /* Enable the display of both time and space usage. */ |
bd712aed DE |
702 | set_per_command_time (1); |
703 | set_per_command_space (1); | |
c906108c | 704 | break; |
49c7e338 | 705 | case OPT_TUI: |
021e7609 | 706 | /* --tui is equivalent to -i=tui. */ |
b0da54f1 | 707 | #ifdef TUI |
021e7609 | 708 | xfree (interpreter_p); |
cc4349ed | 709 | interpreter_p = xstrdup (INTERP_TUI); |
b0da54f1 | 710 | #else |
91b35fd0 | 711 | error (_("%s: TUI mode is not supported"), gdb_program_name); |
b0da54f1 | 712 | #endif |
021e7609 | 713 | break; |
42fa7c0f AC |
714 | case OPT_WINDOWS: |
715 | /* FIXME: cagney/2003-03-01: Not sure if this option is | |
716 | actually useful, and if it is, what it should do. */ | |
cc4349ed AS |
717 | #ifdef GDBTK |
718 | /* --windows is equivalent to -i=insight. */ | |
719 | xfree (interpreter_p); | |
720 | interpreter_p = xstrdup (INTERP_INSIGHT); | |
721 | #endif | |
42fa7c0f AC |
722 | break; |
723 | case OPT_NOWINDOWS: | |
724 | /* -nw is equivalent to -i=console. */ | |
725 | xfree (interpreter_p); | |
726 | interpreter_p = xstrdup (INTERP_CONSOLE); | |
42fa7c0f | 727 | break; |
c906108c SS |
728 | case 'f': |
729 | annotation_level = 1; | |
c906108c SS |
730 | break; |
731 | case 's': | |
732 | symarg = optarg; | |
733 | break; | |
734 | case 'e': | |
735 | execarg = optarg; | |
736 | break; | |
737 | case 'c': | |
738 | corearg = optarg; | |
739 | break; | |
00546b04 | 740 | case 'p': |
a4d9b460 | 741 | pidarg = optarg; |
00546b04 | 742 | break; |
c906108c | 743 | case 'x': |
26743505 JK |
744 | { |
745 | struct cmdarg cmdarg = { CMDARG_FILE, optarg }; | |
746 | ||
747 | VEC_safe_push (cmdarg_s, cmdarg_vec, &cmdarg); | |
748 | } | |
8a5a3c82 AS |
749 | break; |
750 | case 'X': | |
26743505 JK |
751 | { |
752 | struct cmdarg cmdarg = { CMDARG_COMMAND, optarg }; | |
753 | ||
754 | VEC_safe_push (cmdarg_s, cmdarg_vec, &cmdarg); | |
755 | } | |
756 | break; | |
8320cc4f JK |
757 | case OPT_IX: |
758 | { | |
759 | struct cmdarg cmdarg = { CMDARG_INIT_FILE, optarg }; | |
760 | ||
761 | VEC_safe_push (cmdarg_s, cmdarg_vec, &cmdarg); | |
762 | } | |
763 | break; | |
764 | case OPT_IEX: | |
765 | { | |
766 | struct cmdarg cmdarg = { CMDARG_INIT_COMMAND, optarg }; | |
767 | ||
768 | VEC_safe_push (cmdarg_s, cmdarg_vec, &cmdarg); | |
769 | } | |
c906108c | 770 | break; |
1a088d06 | 771 | case 'B': |
7c953934 | 772 | batch_flag = batch_silent = 1; |
1a088d06 AS |
773 | gdb_stdout = ui_file_new(); |
774 | break; | |
aae1c79a | 775 | case 'D': |
8d551b02 | 776 | if (optarg[0] == '\0') |
91b35fd0 GB |
777 | error (_("%s: empty path for `--data-directory'"), |
778 | gdb_program_name); | |
8d551b02 | 779 | set_gdb_data_directory (optarg); |
e64e0392 | 780 | gdb_datadir_provided = 1; |
aae1c79a | 781 | break; |
3fc11d3e JM |
782 | #ifdef GDBTK |
783 | case 'z': | |
784 | { | |
371d5dec MS |
785 | extern int gdbtk_test (char *); |
786 | ||
3fc11d3e | 787 | if (!gdbtk_test (optarg)) |
91b35fd0 GB |
788 | error (_("%s: unable to load tclcommand file \"%s\""), |
789 | gdb_program_name, optarg); | |
3fc11d3e JM |
790 | break; |
791 | } | |
792 | case 'y': | |
78f49586 TT |
793 | /* Backwards compatibility only. */ |
794 | break; | |
3fc11d3e JM |
795 | case 'w': |
796 | { | |
3a9b40b6 JK |
797 | /* Set the external editor commands when gdb is farming out files |
798 | to be edited by another program. */ | |
799 | extern char *external_editor_command; | |
800 | ||
3fc11d3e JM |
801 | external_editor_command = xstrdup (optarg); |
802 | break; | |
803 | } | |
804 | #endif /* GDBTK */ | |
fb40c209 | 805 | case 'i': |
4389a95a AC |
806 | xfree (interpreter_p); |
807 | interpreter_p = xstrdup (optarg); | |
fb40c209 | 808 | break; |
c906108c SS |
809 | case 'd': |
810 | dirarg[ndir++] = optarg; | |
811 | if (ndir >= dirsize) | |
812 | { | |
813 | dirsize *= 2; | |
c5aa993b | 814 | dirarg = (char **) xrealloc ((char *) dirarg, |
c906108c SS |
815 | dirsize * sizeof (*dirarg)); |
816 | } | |
817 | break; | |
818 | case 't': | |
819 | ttyarg = optarg; | |
820 | break; | |
821 | case 'q': | |
822 | quiet = 1; | |
823 | break; | |
824 | case 'b': | |
825 | { | |
826 | int i; | |
827 | char *p; | |
828 | ||
829 | i = strtol (optarg, &p, 0); | |
830 | if (i == 0 && p == optarg) | |
075c7033 GB |
831 | warning (_("could not set baud rate to `%s'."), |
832 | optarg); | |
c906108c SS |
833 | else |
834 | baud_rate = i; | |
835 | } | |
046ca86a | 836 | break; |
c906108c SS |
837 | case 'l': |
838 | { | |
839 | int i; | |
840 | char *p; | |
841 | ||
842 | i = strtol (optarg, &p, 0); | |
843 | if (i == 0 && p == optarg) | |
075c7033 GB |
844 | warning (_("could not set timeout limit to `%s'."), |
845 | optarg); | |
c906108c SS |
846 | else |
847 | remote_timeout = i; | |
848 | } | |
849 | break; | |
850 | ||
c906108c | 851 | case '?': |
91b35fd0 GB |
852 | error (_("Use `%s --help' for a complete list of options."), |
853 | gdb_program_name); | |
c906108c SS |
854 | } |
855 | } | |
856 | ||
7c953934 | 857 | if (batch_flag) |
c906108c SS |
858 | quiet = 1; |
859 | } | |
860 | ||
992c7d70 GB |
861 | /* Try to set up an alternate signal stack for SIGSEGV handlers. */ |
862 | setup_alternate_signal_stack (); | |
863 | ||
f218b647 | 864 | /* Initialize all files. */ |
b5981e5a | 865 | gdb_init (gdb_program_name); |
c906108c | 866 | |
371d5dec MS |
867 | /* Now that gdb_init has created the initial inferior, we're in |
868 | position to set args for that inferior. */ | |
3f81c18a VP |
869 | if (set_args) |
870 | { | |
871 | /* The remaining options are the command-line options for the | |
872 | inferior. The first one is the sym/exec file, and the rest | |
873 | are arguments. */ | |
874 | if (optind >= argc) | |
91b35fd0 GB |
875 | error (_("%s: `--args' specified but no program specified"), |
876 | gdb_program_name); | |
877 | ||
3f81c18a VP |
878 | symarg = argv[optind]; |
879 | execarg = argv[optind]; | |
880 | ++optind; | |
881 | set_inferior_args_vector (argc - optind, &argv[optind]); | |
882 | } | |
883 | else | |
884 | { | |
885 | /* OK, that's all the options. */ | |
886 | ||
887 | /* The first argument, if specified, is the name of the | |
888 | executable. */ | |
889 | if (optind < argc) | |
890 | { | |
891 | symarg = argv[optind]; | |
892 | execarg = argv[optind]; | |
893 | optind++; | |
894 | } | |
895 | ||
896 | /* If the user hasn't already specified a PID or the name of a | |
897 | core file, then a second optional argument is allowed. If | |
898 | present, this argument should be interpreted as either a | |
899 | PID or a core file, whichever works. */ | |
900 | if (pidarg == NULL && corearg == NULL && optind < argc) | |
901 | { | |
902 | pid_or_core_arg = argv[optind]; | |
903 | optind++; | |
904 | } | |
905 | ||
906 | /* Any argument left on the command line is unexpected and | |
907 | will be ignored. Inform the user. */ | |
908 | if (optind < argc) | |
3e43a32a MS |
909 | fprintf_unfiltered (gdb_stderr, |
910 | _("Excess command line " | |
911 | "arguments ignored. (%s%s)\n"), | |
3f81c18a VP |
912 | argv[optind], |
913 | (optind == argc - 1) ? "" : " ..."); | |
914 | } | |
915 | ||
025bb325 | 916 | /* Lookup gdbinit files. Note that the gdbinit file name may be |
371d5dec MS |
917 | overriden during file initialization, so get_init_files should be |
918 | called after gdb_init. */ | |
57a46001 JG |
919 | get_init_files (&system_gdbinit, &home_gdbinit, &local_gdbinit); |
920 | ||
c906108c | 921 | /* Do these (and anything which might call wrap_here or *_filtered) |
4389a95a AC |
922 | after initialize_all_files() but before the interpreter has been |
923 | installed. Otherwize the help/version messages will be eaten by | |
924 | the interpreter's output handler. */ | |
925 | ||
c906108c SS |
926 | if (print_version) |
927 | { | |
928 | print_gdb_version (gdb_stdout); | |
929 | wrap_here (""); | |
930 | printf_filtered ("\n"); | |
931 | exit (0); | |
932 | } | |
933 | ||
934 | if (print_help) | |
935 | { | |
936 | print_gdb_help (gdb_stdout); | |
937 | fputs_unfiltered ("\n", gdb_stdout); | |
938 | exit (0); | |
939 | } | |
940 | ||
6eaaf48b EZ |
941 | if (print_configuration) |
942 | { | |
943 | print_gdb_configuration (gdb_stdout); | |
944 | wrap_here (""); | |
945 | printf_filtered ("\n"); | |
946 | exit (0); | |
947 | } | |
948 | ||
4389a95a AC |
949 | /* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets |
950 | GDB retain the old MI1 interpreter startup behavior. Output the | |
951 | copyright message before the interpreter is installed. That way | |
952 | it isn't encapsulated in MI output. */ | |
953 | if (!quiet && strcmp (interpreter_p, INTERP_MI1) == 0) | |
954 | { | |
371d5dec MS |
955 | /* Print all the junk at the top, with trailing "..." if we are |
956 | about to read a symbol file (possibly slowly). */ | |
4389a95a AC |
957 | print_gdb_version (gdb_stdout); |
958 | if (symarg) | |
959 | printf_filtered (".."); | |
960 | wrap_here (""); | |
e896d70e | 961 | printf_filtered ("\n"); |
371d5dec MS |
962 | gdb_flush (gdb_stdout); /* Force to screen during slow |
963 | operations. */ | |
4389a95a AC |
964 | } |
965 | ||
4389a95a | 966 | /* Install the default UI. All the interpreters should have had a |
371d5dec | 967 | look at things by now. Initialize the default interpreter. */ |
60eb5395 | 968 | set_top_level_interpreter (interpreter_p); |
4389a95a AC |
969 | |
970 | /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets | |
971 | GDB retain the old MI1 interpreter startup behavior. Output the | |
972 | copyright message after the interpreter is installed when it is | |
973 | any sane interpreter. */ | |
974 | if (!quiet && !current_interp_named_p (INTERP_MI1)) | |
c906108c | 975 | { |
371d5dec MS |
976 | /* Print all the junk at the top, with trailing "..." if we are |
977 | about to read a symbol file (possibly slowly). */ | |
c906108c SS |
978 | print_gdb_version (gdb_stdout); |
979 | if (symarg) | |
980 | printf_filtered (".."); | |
c5aa993b | 981 | wrap_here (""); |
e896d70e | 982 | printf_filtered ("\n"); |
371d5dec MS |
983 | gdb_flush (gdb_stdout); /* Force to screen during slow |
984 | operations. */ | |
c906108c SS |
985 | } |
986 | ||
e896d70e | 987 | /* Set off error and warning messages with a blank line. */ |
075c7033 | 988 | xfree (warning_pre_print); |
defc6f8c | 989 | warning_pre_print = _("\nwarning: "); |
c906108c | 990 | |
16e7150e JG |
991 | /* Read and execute the system-wide gdbinit file, if it exists. |
992 | This is done *before* all the command line arguments are | |
993 | processed; it sets global parameters, which are independent of | |
994 | what file you are debugging or what directory you are in. */ | |
995 | if (system_gdbinit && !inhibit_gdbinit) | |
97c18565 | 996 | catch_command_errors_const (source_script, system_gdbinit, 0); |
16e7150e | 997 | |
c906108c SS |
998 | /* Read and execute $HOME/.gdbinit file, if it exists. This is done |
999 | *before* all the command line arguments are processed; it sets | |
1000 | global parameters, which are independent of what file you are | |
1001 | debugging or what directory you are in. */ | |
c906108c | 1002 | |
07540c15 | 1003 | if (home_gdbinit && !inhibit_gdbinit && !inhibit_home_gdbinit) |
97c18565 | 1004 | catch_command_errors_const (source_script, home_gdbinit, 0); |
c906108c | 1005 | |
2d7b58e8 JK |
1006 | /* Process '-ix' and '-iex' options early. */ |
1007 | for (i = 0; VEC_iterate (cmdarg_s, cmdarg_vec, i, cmdarg_p); i++) | |
1008 | switch (cmdarg_p->type) | |
1009 | { | |
1010 | case CMDARG_INIT_FILE: | |
50dd9793 | 1011 | catch_command_errors_const (source_script, cmdarg_p->string, |
97c18565 | 1012 | !batch_flag); |
2d7b58e8 JK |
1013 | break; |
1014 | case CMDARG_INIT_COMMAND: | |
1015 | catch_command_errors (execute_command, cmdarg_p->string, | |
97c18565 | 1016 | !batch_flag); |
2d7b58e8 JK |
1017 | break; |
1018 | } | |
1019 | ||
c906108c SS |
1020 | /* Now perform all the actions indicated by the arguments. */ |
1021 | if (cdarg != NULL) | |
1022 | { | |
97c18565 | 1023 | catch_command_errors (cd_command, cdarg, 0); |
c906108c | 1024 | } |
c906108c SS |
1025 | |
1026 | for (i = 0; i < ndir; i++) | |
97c18565 | 1027 | catch_command_errors (directory_switch, dirarg[i], 0); |
b8c9b27d | 1028 | xfree (dirarg); |
c906108c | 1029 | |
88a1906b | 1030 | /* Skip auto-loading section-specified scripts until we've sourced |
371d5dec MS |
1031 | local_gdbinit (which is often used to augment the source search |
1032 | path). */ | |
bf88dd68 JK |
1033 | save_auto_load = global_auto_load; |
1034 | global_auto_load = 0; | |
88a1906b | 1035 | |
c906108c SS |
1036 | if (execarg != NULL |
1037 | && symarg != NULL | |
5cb316ef | 1038 | && strcmp (execarg, symarg) == 0) |
c906108c | 1039 | { |
11cf8741 JM |
1040 | /* The exec file and the symbol-file are the same. If we can't |
1041 | open it, better only print one error message. | |
371d5dec | 1042 | catch_command_errors returns non-zero on success! */ |
5f08566b | 1043 | if (catch_command_errors_const (exec_file_attach, execarg, |
97c18565 | 1044 | !batch_flag)) |
69150c3d | 1045 | catch_command_errors_const (symbol_file_add_main, symarg, |
97c18565 | 1046 | !batch_flag); |
c906108c SS |
1047 | } |
1048 | else | |
1049 | { | |
1050 | if (execarg != NULL) | |
5f08566b | 1051 | catch_command_errors_const (exec_file_attach, execarg, |
97c18565 | 1052 | !batch_flag); |
c906108c | 1053 | if (symarg != NULL) |
69150c3d | 1054 | catch_command_errors_const (symbol_file_add_main, symarg, |
97c18565 | 1055 | !batch_flag); |
c906108c | 1056 | } |
c906108c | 1057 | |
a4d9b460 | 1058 | if (corearg && pidarg) |
3e43a32a MS |
1059 | error (_("Can't attach to process and specify " |
1060 | "a core file at the same time.")); | |
a4d9b460 | 1061 | |
c906108c | 1062 | if (corearg != NULL) |
97c18565 | 1063 | catch_command_errors (core_file_command, corearg, !batch_flag); |
a4d9b460 | 1064 | else if (pidarg != NULL) |
97c18565 | 1065 | catch_command_errors (attach_command, pidarg, !batch_flag); |
a4d9b460 | 1066 | else if (pid_or_core_arg) |
c906108c | 1067 | { |
a4d9b460 PA |
1068 | /* The user specified 'gdb program pid' or gdb program core'. |
1069 | If pid_or_core_arg's first character is a digit, try attach | |
1070 | first and then corefile. Otherwise try just corefile. */ | |
00546b04 | 1071 | |
a4d9b460 | 1072 | if (isdigit (pid_or_core_arg[0])) |
11cf8741 | 1073 | { |
a4d9b460 | 1074 | if (catch_command_errors (attach_command, pid_or_core_arg, |
97c18565 | 1075 | !batch_flag) == 0) |
a4d9b460 | 1076 | catch_command_errors (core_file_command, pid_or_core_arg, |
97c18565 | 1077 | !batch_flag); |
11cf8741 | 1078 | } |
a4d9b460 PA |
1079 | else /* Can't be a pid, better be a corefile. */ |
1080 | catch_command_errors (core_file_command, pid_or_core_arg, | |
97c18565 | 1081 | !batch_flag); |
c906108c | 1082 | } |
c906108c SS |
1083 | |
1084 | if (ttyarg != NULL) | |
3f81c18a | 1085 | set_inferior_io_terminal (ttyarg); |
c906108c | 1086 | |
371d5dec | 1087 | /* Error messages should no longer be distinguished with extra output. */ |
defc6f8c | 1088 | warning_pre_print = _("warning: "); |
c906108c SS |
1089 | |
1090 | /* Read the .gdbinit file in the current directory, *if* it isn't | |
1091 | the same as the $HOME/.gdbinit file (it should exist, also). */ | |
bf88dd68 JK |
1092 | if (local_gdbinit) |
1093 | { | |
1094 | auto_load_local_gdbinit_pathname = gdb_realpath (local_gdbinit); | |
1095 | ||
bccbefd2 | 1096 | if (!inhibit_gdbinit && auto_load_local_gdbinit |
4dc84fd1 JK |
1097 | && file_is_auto_load_safe (local_gdbinit, |
1098 | _("auto-load: Loading .gdbinit " | |
1099 | "file \"%s\".\n"), | |
1100 | local_gdbinit)) | |
bf88dd68 JK |
1101 | { |
1102 | auto_load_local_gdbinit_loaded = 1; | |
1103 | ||
97c18565 | 1104 | catch_command_errors_const (source_script, local_gdbinit, 0); |
bf88dd68 JK |
1105 | } |
1106 | } | |
c906108c | 1107 | |
88a1906b DE |
1108 | /* Now that all .gdbinit's have been read and all -d options have been |
1109 | processed, we can read any scripts mentioned in SYMARG. | |
1110 | We wait until now because it is common to add to the source search | |
1111 | path in local_gdbinit. */ | |
bf88dd68 | 1112 | global_auto_load = save_auto_load; |
7f6130ff JK |
1113 | ALL_OBJFILES (objfile) |
1114 | load_auto_scripts_for_objfile (objfile); | |
88a1906b | 1115 | |
8320cc4f | 1116 | /* Process '-x' and '-ex' options. */ |
26743505 JK |
1117 | for (i = 0; VEC_iterate (cmdarg_s, cmdarg_vec, i, cmdarg_p); i++) |
1118 | switch (cmdarg_p->type) | |
c906108c | 1119 | { |
26743505 | 1120 | case CMDARG_FILE: |
50dd9793 | 1121 | catch_command_errors_const (source_script, cmdarg_p->string, |
97c18565 | 1122 | !batch_flag); |
26743505 JK |
1123 | break; |
1124 | case CMDARG_COMMAND: | |
1125 | catch_command_errors (execute_command, cmdarg_p->string, | |
97c18565 | 1126 | !batch_flag); |
26743505 | 1127 | break; |
c906108c | 1128 | } |
c906108c | 1129 | |
371d5dec MS |
1130 | /* Read in the old history after all the command files have been |
1131 | read. */ | |
c5aa993b | 1132 | init_history (); |
c906108c | 1133 | |
7c953934 | 1134 | if (batch_flag) |
c906108c SS |
1135 | { |
1136 | /* We have hit the end of the batch file. */ | |
4b0ad762 | 1137 | quit_force (NULL, 0); |
c906108c SS |
1138 | } |
1139 | ||
c906108c | 1140 | /* Show time and/or space usage. */ |
0f3bb72e | 1141 | do_cleanups (pre_stat_chain); |
c906108c | 1142 | |
11cf8741 JM |
1143 | /* NOTE: cagney/1999-11-07: There is probably no reason for not |
1144 | moving this loop and the code found in captured_command_loop() | |
1145 | into the command_loop() proper. The main thing holding back that | |
371d5dec | 1146 | change - SET_TOP_LEVEL() - has been eliminated. */ |
11cf8741 JM |
1147 | while (1) |
1148 | { | |
1149 | catch_errors (captured_command_loop, 0, "", RETURN_MASK_ALL); | |
1150 | } | |
11cf8741 JM |
1151 | /* No exit -- exit is through quit_command. */ |
1152 | } | |
c906108c | 1153 | |
11cf8741 | 1154 | int |
f15ab4a7 | 1155 | gdb_main (struct captured_main_args *args) |
11cf8741 | 1156 | { |
98d9f24e PA |
1157 | TRY |
1158 | { | |
1159 | captured_main (args); | |
1160 | } | |
1161 | CATCH (ex, RETURN_MASK_ALL) | |
1162 | { | |
1163 | exception_print (gdb_stderr, ex); | |
1164 | } | |
1165 | END_CATCH | |
1166 | ||
864dbc90 AC |
1167 | /* The only way to end up here is by an error (normal exit is |
1168 | handled by quit_force()), hence always return an error status. */ | |
1169 | return 1; | |
c906108c SS |
1170 | } |
1171 | ||
11cf8741 | 1172 | |
c906108c SS |
1173 | /* Don't use *_filtered for printing help. We don't want to prompt |
1174 | for continue no matter how small the screen or how much we're going | |
1175 | to print. */ | |
1176 | ||
1177 | static void | |
d9fcf2fb | 1178 | print_gdb_help (struct ui_file *stream) |
c906108c | 1179 | { |
50dd9793 PA |
1180 | const char *system_gdbinit; |
1181 | const char *home_gdbinit; | |
1182 | const char *local_gdbinit; | |
16e7150e JG |
1183 | |
1184 | get_init_files (&system_gdbinit, &home_gdbinit, &local_gdbinit); | |
1185 | ||
b187bec1 EZ |
1186 | /* Note: The options in the list below are only approximately sorted |
1187 | in the alphabetical order, so as to group closely related options | |
1188 | together. */ | |
defc6f8c | 1189 | fputs_unfiltered (_("\ |
c906108c | 1190 | This is the GNU debugger. Usage:\n\n\ |
552c04a7 TT |
1191 | gdb [options] [executable-file [core-file or process-id]]\n\ |
1192 | gdb [options] --args executable-file [inferior-arguments ...]\n\n\ | |
defc6f8c TT |
1193 | "), stream); |
1194 | fputs_unfiltered (_("\ | |
b187bec1 | 1195 | Selection of debuggee and its files:\n\n\ |
552c04a7 | 1196 | --args Arguments after executable-file are passed to inferior\n\ |
b187bec1 EZ |
1197 | --core=COREFILE Analyze the core dump COREFILE.\n\ |
1198 | --exec=EXECFILE Use EXECFILE as the executable.\n\ | |
1199 | --pid=PID Attach to running process PID.\n\ | |
1200 | --directory=DIR Search for source files in DIR.\n\ | |
1201 | --se=FILE Use FILE as symbol file and executable file.\n\ | |
1202 | --symbols=SYMFILE Read symbols from SYMFILE.\n\ | |
1203 | --readnow Fully read symbol files on first access.\n\ | |
1204 | --write Set writing into executable and core files.\n\n\ | |
defc6f8c TT |
1205 | "), stream); |
1206 | fputs_unfiltered (_("\ | |
b187bec1 | 1207 | Initial commands and command files:\n\n\ |
8a5a3c82 | 1208 | --command=FILE, -x Execute GDB commands from FILE.\n\ |
b187bec1 EZ |
1209 | --init-command=FILE, -ix\n\ |
1210 | Like -x but execute commands before loading inferior.\n\ | |
8a5a3c82 AS |
1211 | --eval-command=COMMAND, -ex\n\ |
1212 | Execute a single GDB command.\n\ | |
1213 | May be used multiple times and in conjunction\n\ | |
1214 | with --command.\n\ | |
b187bec1 EZ |
1215 | --init-eval-command=COMMAND, -iex\n\ |
1216 | Like -ex but before loading inferior.\n\ | |
1217 | --nh Do not read ~/.gdbinit.\n\ | |
1218 | --nx Do not read any .gdbinit files in any directory.\n\n\ | |
defc6f8c TT |
1219 | "), stream); |
1220 | fputs_unfiltered (_("\ | |
b187bec1 | 1221 | Output and user interface control:\n\n\ |
c906108c | 1222 | --fullname Output information used by emacs-GDB interface.\n\ |
8b93c638 JM |
1223 | --interpreter=INTERP\n\ |
1224 | Select a specific interpreter / user interface\n\ | |
c906108c | 1225 | --tty=TTY Use TTY for input/output by the program being debugged.\n\ |
b187bec1 EZ |
1226 | -w Use the GUI interface.\n\ |
1227 | --nw Do not use the GUI interface.\n\ | |
defc6f8c | 1228 | "), stream); |
c906108c | 1229 | #if defined(TUI) |
defc6f8c | 1230 | fputs_unfiltered (_("\ |
c906108c | 1231 | --tui Use a terminal user interface.\n\ |
defc6f8c | 1232 | "), stream); |
c906108c | 1233 | #endif |
481860b3 | 1234 | fputs_unfiltered (_("\ |
b187bec1 | 1235 | --dbx DBX compatibility mode.\n\ |
adcc0a31 | 1236 | -q, --quiet, --silent\n\ |
1237 | Do not print version number on startup.\n\n\ | |
b187bec1 EZ |
1238 | "), stream); |
1239 | fputs_unfiltered (_("\ | |
1240 | Operating modes:\n\n\ | |
1241 | --batch Exit after processing options.\n\ | |
1242 | --batch-silent Like --batch, but suppress all gdb stdout output.\n\ | |
1243 | --return-child-result\n\ | |
1244 | GDB exit code will be the child's exit code.\n\ | |
1245 | --configuration Print details about GDB configuration and then exit.\n\ | |
1246 | --help Print this message and then exit.\n\ | |
1247 | --version Print version information and then exit.\n\n\ | |
1248 | Remote debugging options:\n\n\ | |
1249 | -b BAUDRATE Set serial port baud rate used for remote debugging.\n\ | |
1250 | -l TIMEOUT Set timeout in seconds for remote debugging.\n\n\ | |
1251 | Other options:\n\n\ | |
1252 | --cd=DIR Change current directory to DIR.\n\ | |
8d551b02 DE |
1253 | --data-directory=DIR, -D\n\ |
1254 | Set GDB's data-directory to DIR.\n\ | |
defc6f8c | 1255 | "), stream); |
defc6f8c | 1256 | fputs_unfiltered (_("\n\ |
16e7150e JG |
1257 | At startup, GDB reads the following init files and executes their commands:\n\ |
1258 | "), stream); | |
1259 | if (system_gdbinit) | |
1260 | fprintf_unfiltered (stream, _("\ | |
1261 | * system-wide init file: %s\n\ | |
1262 | "), system_gdbinit); | |
1263 | if (home_gdbinit) | |
1264 | fprintf_unfiltered (stream, _("\ | |
1265 | * user-specific init file: %s\n\ | |
1266 | "), home_gdbinit); | |
1267 | if (local_gdbinit) | |
1268 | fprintf_unfiltered (stream, _("\ | |
bf88dd68 | 1269 | * local init file (see also 'set auto-load local-gdbinit'): ./%s\n\ |
16e7150e JG |
1270 | "), local_gdbinit); |
1271 | fputs_unfiltered (_("\n\ | |
c906108c SS |
1272 | For more information, type \"help\" from within GDB, or consult the\n\ |
1273 | GDB manual (available as on-line info or a printed manual).\n\ | |
defc6f8c | 1274 | "), stream); |
c16158bc JM |
1275 | if (REPORT_BUGS_TO[0] && stream == gdb_stdout) |
1276 | fprintf_unfiltered (stream, _("\ | |
1277 | Report bugs to \"%s\".\n\ | |
1278 | "), REPORT_BUGS_TO); | |
c906108c | 1279 | } |