Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
4389a95a | 2 | |
32d0add0 | 3 | Copyright (C) 1986-2015 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" |
b5981e5a | 47 | |
4389a95a AC |
48 | /* The selected interpreter. This will be used as a set command |
49 | variable, so it should always be malloc'ed - since | |
371d5dec | 50 | do_setshow_command will free it. */ |
fb40c209 | 51 | char *interpreter_p; |
fb40c209 | 52 | |
371d5dec | 53 | /* Whether xdb commands will be handled. */ |
c906108c SS |
54 | int xdb_commands = 0; |
55 | ||
371d5dec | 56 | /* Whether dbx commands will be handled. */ |
c906108c SS |
57 | int dbx_commands = 0; |
58 | ||
030292b7 DJ |
59 | /* System root path, used to find libraries etc. */ |
60 | char *gdb_sysroot = 0; | |
61 | ||
b14b1491 TT |
62 | /* GDB datadir, used to store data files. */ |
63 | char *gdb_datadir = 0; | |
64 | ||
e64e0392 DE |
65 | /* Non-zero if GDB_DATADIR was provided on the command line. |
66 | This doesn't track whether data-directory is set later from the | |
67 | command line, but we don't reread system.gdbinit when that happens. */ | |
68 | static int gdb_datadir_provided = 0; | |
69 | ||
0c4a4063 DE |
70 | /* If gdb was configured with --with-python=/path, |
71 | the possibly relocated path to python's lib directory. */ | |
72 | char *python_libdir = 0; | |
73 | ||
d9fcf2fb JM |
74 | struct ui_file *gdb_stdout; |
75 | struct ui_file *gdb_stderr; | |
76 | struct ui_file *gdb_stdlog; | |
449092f6 | 77 | struct ui_file *gdb_stdin; |
371d5dec | 78 | /* Target IO streams. */ |
449092f6 | 79 | struct ui_file *gdb_stdtargin; |
22e8e3c7 | 80 | struct ui_file *gdb_stdtarg; |
449092f6 | 81 | struct ui_file *gdb_stdtargerr; |
c906108c | 82 | |
7c953934 TT |
83 | /* True if --batch or --batch-silent was seen. */ |
84 | int batch_flag = 0; | |
85 | ||
1a088d06 AS |
86 | /* Support for the --batch-silent option. */ |
87 | int batch_silent = 0; | |
88 | ||
4b0ad762 AS |
89 | /* Support for --return-child-result option. |
90 | Set the default to -1 to return error in the case | |
91 | that the program does not run or does not complete. */ | |
92 | int return_child_result = 0; | |
93 | int return_child_result_value = -1; | |
94 | ||
c906108c | 95 | |
16e7150e JG |
96 | /* GDB as it has been invoked from the command line (i.e. argv[0]). */ |
97 | static char *gdb_program_name; | |
98 | ||
c88a1531 AB |
99 | /* Return read only pointer to GDB_PROGRAM_NAME. */ |
100 | const char * | |
101 | get_gdb_program_name (void) | |
102 | { | |
103 | return gdb_program_name; | |
104 | } | |
105 | ||
d9fcf2fb | 106 | static void print_gdb_help (struct ui_file *); |
c906108c | 107 | |
8d551b02 DE |
108 | /* Set the data-directory parameter to NEW_DATADIR. |
109 | If NEW_DATADIR is not a directory then a warning is printed. | |
110 | We don't signal an error for backward compatibility. */ | |
111 | ||
112 | void | |
113 | set_gdb_data_directory (const char *new_datadir) | |
114 | { | |
115 | struct stat st; | |
116 | ||
117 | if (stat (new_datadir, &st) < 0) | |
118 | { | |
119 | int save_errno = errno; | |
120 | ||
121 | fprintf_unfiltered (gdb_stderr, "Warning: "); | |
122 | print_sys_errmsg (new_datadir, save_errno); | |
123 | } | |
124 | else if (!S_ISDIR (st.st_mode)) | |
125 | warning (_("%s is not a directory."), new_datadir); | |
126 | ||
127 | xfree (gdb_datadir); | |
128 | gdb_datadir = gdb_realpath (new_datadir); | |
129 | ||
130 | /* gdb_realpath won't return an absolute path if the path doesn't exist, | |
131 | but we still want to record an absolute path here. If the user entered | |
132 | "../foo" and "../foo" doesn't exist then we'll record $(pwd)/../foo which | |
133 | isn't canonical, but that's ok. */ | |
134 | if (!IS_ABSOLUTE_PATH (gdb_datadir)) | |
135 | { | |
136 | char *abs_datadir = gdb_abspath (gdb_datadir); | |
137 | ||
138 | xfree (gdb_datadir); | |
139 | gdb_datadir = abs_datadir; | |
140 | } | |
141 | } | |
142 | ||
b14b1491 TT |
143 | /* Relocate a file or directory. PROGNAME is the name by which gdb |
144 | was invoked (i.e., argv[0]). INITIAL is the default value for the | |
145 | file or directory. FLAG is true if the value is relocatable, false | |
146 | otherwise. Returns a newly allocated string; this may return NULL | |
147 | under the same conditions as make_relative_prefix. */ | |
478aac75 | 148 | |
b14b1491 TT |
149 | static char * |
150 | relocate_path (const char *progname, const char *initial, int flag) | |
151 | { | |
152 | if (flag) | |
153 | return make_relative_prefix (progname, BINDIR, initial); | |
154 | return xstrdup (initial); | |
155 | } | |
156 | ||
157 | /* Like relocate_path, but specifically checks for a directory. | |
158 | INITIAL is relocated according to the rules of relocate_path. If | |
159 | the result is a directory, it is used; otherwise, INITIAL is used. | |
160 | The chosen directory is then canonicalized using lrealpath. This | |
161 | function always returns a newly-allocated string. */ | |
478aac75 DE |
162 | |
163 | char * | |
164 | relocate_gdb_directory (const char *initial, int flag) | |
b14b1491 TT |
165 | { |
166 | char *dir; | |
167 | ||
478aac75 | 168 | dir = relocate_path (gdb_program_name, initial, flag); |
b14b1491 TT |
169 | if (dir) |
170 | { | |
171 | struct stat s; | |
172 | ||
78a8b30e | 173 | if (*dir == '\0' || stat (dir, &s) != 0 || !S_ISDIR (s.st_mode)) |
b14b1491 TT |
174 | { |
175 | xfree (dir); | |
176 | dir = NULL; | |
177 | } | |
178 | } | |
179 | if (!dir) | |
180 | dir = xstrdup (initial); | |
181 | ||
182 | /* Canonicalize the directory. */ | |
183 | if (*dir) | |
184 | { | |
185 | char *canon_sysroot = lrealpath (dir); | |
b8d56208 | 186 | |
b14b1491 TT |
187 | if (canon_sysroot) |
188 | { | |
189 | xfree (dir); | |
190 | dir = canon_sysroot; | |
191 | } | |
192 | } | |
193 | ||
194 | return dir; | |
195 | } | |
196 | ||
371d5dec MS |
197 | /* Compute the locations of init files that GDB should source and |
198 | return them in SYSTEM_GDBINIT, HOME_GDBINIT, LOCAL_GDBINIT. If | |
199 | there is no system gdbinit (resp. home gdbinit and local gdbinit) | |
200 | to be loaded, then SYSTEM_GDBINIT (resp. HOME_GDBINIT and | |
201 | LOCAL_GDBINIT) is set to NULL. */ | |
16e7150e | 202 | static void |
50dd9793 PA |
203 | get_init_files (const char **system_gdbinit, |
204 | const char **home_gdbinit, | |
205 | const char **local_gdbinit) | |
16e7150e | 206 | { |
50dd9793 | 207 | static const char *sysgdbinit = NULL; |
16e7150e | 208 | static char *homeinit = NULL; |
50dd9793 | 209 | static const char *localinit = NULL; |
16e7150e JG |
210 | static int initialized = 0; |
211 | ||
212 | if (!initialized) | |
213 | { | |
214 | struct stat homebuf, cwdbuf, s; | |
e64e0392 | 215 | char *homedir; |
16e7150e | 216 | |
b14b1491 | 217 | if (SYSTEM_GDBINIT[0]) |
16e7150e | 218 | { |
e64e0392 DE |
219 | int datadir_len = strlen (GDB_DATADIR); |
220 | int sys_gdbinit_len = strlen (SYSTEM_GDBINIT); | |
221 | char *relocated_sysgdbinit; | |
222 | ||
223 | /* If SYSTEM_GDBINIT lives in data-directory, and data-directory | |
224 | has been provided, search for SYSTEM_GDBINIT there. */ | |
225 | if (gdb_datadir_provided | |
226 | && datadir_len < sys_gdbinit_len | |
b5981e5a EZ |
227 | && filename_ncmp (SYSTEM_GDBINIT, GDB_DATADIR, datadir_len) == 0 |
228 | && IS_DIR_SEPARATOR (SYSTEM_GDBINIT[datadir_len])) | |
e64e0392 DE |
229 | { |
230 | /* Append the part of SYSTEM_GDBINIT that follows GDB_DATADIR | |
231 | to gdb_datadir. */ | |
232 | char *tmp_sys_gdbinit = xstrdup (SYSTEM_GDBINIT + datadir_len); | |
233 | char *p; | |
234 | ||
b5981e5a | 235 | for (p = tmp_sys_gdbinit; IS_DIR_SEPARATOR (*p); ++p) |
e64e0392 DE |
236 | continue; |
237 | relocated_sysgdbinit = concat (gdb_datadir, SLASH_STRING, p, | |
238 | NULL); | |
239 | xfree (tmp_sys_gdbinit); | |
240 | } | |
241 | else | |
242 | { | |
243 | relocated_sysgdbinit = relocate_path (gdb_program_name, | |
244 | SYSTEM_GDBINIT, | |
245 | SYSTEM_GDBINIT_RELOCATABLE); | |
246 | } | |
b14b1491 | 247 | if (relocated_sysgdbinit && stat (relocated_sysgdbinit, &s) == 0) |
16e7150e JG |
248 | sysgdbinit = relocated_sysgdbinit; |
249 | else | |
250 | xfree (relocated_sysgdbinit); | |
251 | } | |
16e7150e JG |
252 | |
253 | homedir = getenv ("HOME"); | |
254 | ||
255 | /* If the .gdbinit file in the current directory is the same as | |
256 | the $HOME/.gdbinit file, it should not be sourced. homebuf | |
025bb325 | 257 | and cwdbuf are used in that purpose. Make sure that the stats |
16e7150e JG |
258 | are zero in case one of them fails (this guarantees that they |
259 | won't match if either exists). */ | |
260 | ||
261 | memset (&homebuf, 0, sizeof (struct stat)); | |
262 | memset (&cwdbuf, 0, sizeof (struct stat)); | |
263 | ||
264 | if (homedir) | |
265 | { | |
266 | homeinit = xstrprintf ("%s/%s", homedir, gdbinit); | |
267 | if (stat (homeinit, &homebuf) != 0) | |
268 | { | |
269 | xfree (homeinit); | |
270 | homeinit = NULL; | |
271 | } | |
272 | } | |
273 | ||
274 | if (stat (gdbinit, &cwdbuf) == 0) | |
275 | { | |
276 | if (!homeinit | |
277 | || memcmp ((char *) &homebuf, (char *) &cwdbuf, | |
278 | sizeof (struct stat))) | |
279 | localinit = gdbinit; | |
280 | } | |
281 | ||
282 | initialized = 1; | |
283 | } | |
284 | ||
285 | *system_gdbinit = sysgdbinit; | |
286 | *home_gdbinit = homeinit; | |
287 | *local_gdbinit = localinit; | |
288 | } | |
289 | ||
992c7d70 GB |
290 | /* Try to set up an alternate signal stack for SIGSEGV handlers. |
291 | This allows us to handle SIGSEGV signals generated when the | |
292 | normal process stack is exhausted. If this stack is not set | |
293 | up (sigaltstack is unavailable or fails) and a SIGSEGV is | |
294 | generated when the normal stack is exhausted then the program | |
295 | will behave as though no SIGSEGV handler was installed. */ | |
296 | ||
297 | static void | |
298 | setup_alternate_signal_stack (void) | |
299 | { | |
300 | #ifdef HAVE_SIGALTSTACK | |
301 | stack_t ss; | |
302 | ||
303 | ss.ss_sp = xmalloc (SIGSTKSZ); | |
304 | ss.ss_size = SIGSTKSZ; | |
305 | ss.ss_flags = 0; | |
306 | ||
307 | sigaltstack(&ss, NULL); | |
308 | #endif | |
309 | } | |
310 | ||
11cf8741 | 311 | /* Call command_loop. If it happens to return, pass that through as a |
371d5dec | 312 | non-zero return status. */ |
11cf8741 JM |
313 | |
314 | static int | |
315 | captured_command_loop (void *data) | |
c906108c | 316 | { |
bb5291d0 | 317 | /* Top-level execution commands can be run in the background from |
b4a14fd0 PA |
318 | here on. */ |
319 | interpreter_async = 1; | |
320 | ||
4389a95a | 321 | current_interp_command_loop (); |
11cf8741 JM |
322 | /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton |
323 | would clean things up (restoring the cleanup chain) to the state | |
324 | they were just prior to the call. Technically, this means that | |
e26cc349 | 325 | the do_cleanups() below is redundant. Unfortunately, many FUNCs |
11cf8741 JM |
326 | are not that well behaved. do_cleanups should either be replaced |
327 | with a do_cleanups call (to cover the problem) or an assertion | |
371d5dec | 328 | check to detect bad FUNCs code. */ |
6328eb38 | 329 | do_cleanups (all_cleanups ()); |
11cf8741 | 330 | /* If the command_loop returned, normally (rather than threw an |
025bb325 | 331 | error) we try to quit. If the quit is aborted, catch_errors() |
11cf8741 | 332 | which called this catch the signal and restart the command |
371d5dec | 333 | loop. */ |
11cf8741 JM |
334 | quit_command (NULL, instream == stdin); |
335 | return 1; | |
336 | } | |
337 | ||
94696ad3 PA |
338 | /* Handle command errors thrown from within |
339 | catch_command_errors/catch_command_errors_const. */ | |
340 | ||
341 | static int | |
284e6217 | 342 | handle_command_errors (struct gdb_exception e) |
94696ad3 PA |
343 | { |
344 | if (e.reason < 0) | |
345 | { | |
346 | exception_print (gdb_stderr, e); | |
347 | ||
348 | /* If any exception escaped to here, we better enable stdin. | |
349 | Otherwise, any command that calls async_disable_stdin, and | |
350 | then throws, will leave stdin inoperable. */ | |
351 | async_enable_stdin (); | |
352 | return 0; | |
353 | } | |
354 | return 1; | |
355 | } | |
356 | ||
9d1e69a2 PA |
357 | /* Type of the command callback passed to catch_command_errors. */ |
358 | ||
359 | typedef void (catch_command_errors_ftype) (char *, int); | |
360 | ||
361 | /* Wrap calls to commands run before the event loop is started. */ | |
362 | ||
363 | static int | |
364 | catch_command_errors (catch_command_errors_ftype *command, | |
97c18565 | 365 | char *arg, int from_tty) |
9d1e69a2 | 366 | { |
492d29ea | 367 | TRY |
9d1e69a2 | 368 | { |
98880d46 PA |
369 | int was_sync = sync_execution; |
370 | ||
9d1e69a2 | 371 | command (arg, from_tty); |
98880d46 PA |
372 | |
373 | maybe_wait_sync_command_done (was_sync); | |
9d1e69a2 | 374 | } |
492d29ea PA |
375 | CATCH (e, RETURN_MASK_ALL) |
376 | { | |
377 | return handle_command_errors (e); | |
378 | } | |
379 | END_CATCH | |
380 | ||
381 | return 1; | |
9d1e69a2 PA |
382 | } |
383 | ||
384 | /* Type of the command callback passed to catch_command_errors_const. */ | |
385 | ||
386 | typedef void (catch_command_errors_const_ftype) (const char *, int); | |
387 | ||
388 | /* Like catch_command_errors, but works with const command and args. */ | |
389 | ||
390 | static int | |
391 | catch_command_errors_const (catch_command_errors_const_ftype *command, | |
97c18565 | 392 | const char *arg, int from_tty) |
9d1e69a2 | 393 | { |
492d29ea | 394 | TRY |
9d1e69a2 | 395 | { |
98880d46 PA |
396 | int was_sync = sync_execution; |
397 | ||
9d1e69a2 | 398 | command (arg, from_tty); |
98880d46 PA |
399 | |
400 | maybe_wait_sync_command_done (was_sync); | |
9d1e69a2 | 401 | } |
492d29ea PA |
402 | CATCH (e, RETURN_MASK_ALL) |
403 | { | |
404 | return handle_command_errors (e); | |
405 | } | |
406 | END_CATCH | |
407 | ||
408 | return 1; | |
9d1e69a2 PA |
409 | } |
410 | ||
52059ffd TT |
411 | /* Type of this option. */ |
412 | enum cmdarg_kind | |
413 | { | |
414 | /* Option type -x. */ | |
415 | CMDARG_FILE, | |
26743505 | 416 | |
52059ffd TT |
417 | /* Option type -ex. */ |
418 | CMDARG_COMMAND, | |
8320cc4f | 419 | |
52059ffd TT |
420 | /* Option type -ix. */ |
421 | CMDARG_INIT_FILE, | |
8320cc4f | 422 | |
52059ffd TT |
423 | /* Option type -iex. */ |
424 | CMDARG_INIT_COMMAND | |
425 | }; | |
426 | ||
427 | /* Arguments of --command option and its counterpart. */ | |
428 | typedef struct cmdarg { | |
429 | /* Type of this option. */ | |
430 | enum cmdarg_kind type; | |
26743505 JK |
431 | |
432 | /* Value of this option - filename or the GDB command itself. String memory | |
433 | is not owned by this structure despite it is 'const'. */ | |
434 | char *string; | |
435 | } cmdarg_s; | |
436 | ||
437 | /* Define type VEC (cmdarg_s). */ | |
438 | DEF_VEC_O (cmdarg_s); | |
439 | ||
11cf8741 JM |
440 | static int |
441 | captured_main (void *data) | |
442 | { | |
443 | struct captured_main_args *context = data; | |
444 | int argc = context->argc; | |
445 | char **argv = context->argv; | |
c906108c | 446 | static int quiet = 0; |
552c04a7 | 447 | static int set_args = 0; |
07540c15 | 448 | static int inhibit_home_gdbinit = 0; |
c906108c SS |
449 | |
450 | /* Pointers to various arguments from command line. */ | |
451 | char *symarg = NULL; | |
452 | char *execarg = NULL; | |
a4d9b460 | 453 | char *pidarg = NULL; |
c906108c | 454 | char *corearg = NULL; |
a4d9b460 | 455 | char *pid_or_core_arg = NULL; |
c906108c SS |
456 | char *cdarg = NULL; |
457 | char *ttyarg = NULL; | |
458 | ||
371d5dec MS |
459 | /* These are static so that we can take their address in an |
460 | initializer. */ | |
c906108c SS |
461 | static int print_help; |
462 | static int print_version; | |
6eaaf48b | 463 | static int print_configuration; |
c906108c SS |
464 | |
465 | /* Pointers to all arguments of --command option. */ | |
26743505 JK |
466 | VEC (cmdarg_s) *cmdarg_vec = NULL; |
467 | struct cmdarg *cmdarg_p; | |
c906108c SS |
468 | |
469 | /* Indices of all arguments of --directory option. */ | |
470 | char **dirarg; | |
471 | /* Allocated size. */ | |
472 | int dirsize; | |
473 | /* Number of elements used. */ | |
474 | int ndir; | |
c5aa993b | 475 | |
16e7150e | 476 | /* gdb init files. */ |
50dd9793 PA |
477 | const char *system_gdbinit; |
478 | const char *home_gdbinit; | |
479 | const char *local_gdbinit; | |
c906108c | 480 | |
52f0bd74 | 481 | int i; |
88a1906b | 482 | int save_auto_load; |
7f6130ff | 483 | struct objfile *objfile; |
c906108c | 484 | |
e565b837 DE |
485 | struct cleanup *pre_stat_chain; |
486 | ||
487 | #ifdef HAVE_SBRK | |
488 | /* Set this before calling make_command_stats_cleanup. */ | |
489 | lim_at_start = (char *) sbrk (0); | |
490 | #endif | |
491 | ||
492 | pre_stat_chain = make_command_stats_cleanup (0); | |
c906108c | 493 | |
0fbb3da7 TT |
494 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) |
495 | setlocale (LC_MESSAGES, ""); | |
496 | #endif | |
497 | #if defined (HAVE_SETLOCALE) | |
498 | setlocale (LC_CTYPE, ""); | |
499 | #endif | |
500 | bindtextdomain (PACKAGE, LOCALEDIR); | |
501 | textdomain (PACKAGE); | |
502 | ||
5484b13a | 503 | bfd_init (); |
614c279d | 504 | notice_open_fds (); |
5484b13a | 505 | |
26743505 | 506 | make_cleanup (VEC_cleanup (cmdarg_s), &cmdarg_vec); |
c906108c SS |
507 | dirsize = 1; |
508 | dirarg = (char **) xmalloc (dirsize * sizeof (*dirarg)); | |
509 | ndir = 0; | |
510 | ||
522002f9 | 511 | clear_quit_flag (); |
dc7eb48e PA |
512 | saved_command_line = (char *) xmalloc (saved_command_line_size); |
513 | saved_command_line[0] = '\0'; | |
c906108c SS |
514 | instream = stdin; |
515 | ||
ffa4ac95 YQ |
516 | #ifdef __MINGW32__ |
517 | /* Ensure stderr is unbuffered. A Cygwin pty or pipe is implemented | |
518 | as a Windows pipe, and Windows buffers on pipes. */ | |
519 | setvbuf (stderr, NULL, _IONBF, BUFSIZ); | |
520 | #endif | |
521 | ||
da59e081 | 522 | gdb_stdout = stdio_fileopen (stdout); |
ffa4ac95 YQ |
523 | gdb_stderr = stderr_fileopen (); |
524 | ||
da59e081 JM |
525 | gdb_stdlog = gdb_stderr; /* for moment */ |
526 | gdb_stdtarg = gdb_stderr; /* for moment */ | |
449092f6 CV |
527 | gdb_stdin = stdio_fileopen (stdin); |
528 | gdb_stdtargerr = gdb_stderr; /* for moment */ | |
529 | gdb_stdtargin = gdb_stdin; /* for moment */ | |
c906108c | 530 | |
b5981e5a EZ |
531 | #ifdef __MINGW32__ |
532 | /* On Windows, argv[0] is not necessarily set to absolute form when | |
533 | GDB is found along PATH, without which relocation doesn't work. */ | |
534 | gdb_program_name = windows_get_absolute_argv0 (argv[0]); | |
535 | #else | |
16e7150e | 536 | gdb_program_name = xstrdup (argv[0]); |
b5981e5a | 537 | #endif |
16e7150e | 538 | |
075c7033 GB |
539 | /* Prefix warning messages with the command name. */ |
540 | warning_pre_print = xstrprintf ("%s: warning: ", gdb_program_name); | |
541 | ||
bf1d7d9c | 542 | if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf))) |
075c7033 GB |
543 | perror_warning_with_name (_("error finding working directory")); |
544 | ||
bf1d7d9c JB |
545 | current_directory = gdb_dirbuf; |
546 | ||
030292b7 | 547 | /* Set the sysroot path. */ |
478aac75 DE |
548 | gdb_sysroot = relocate_gdb_directory (TARGET_SYSTEM_ROOT, |
549 | TARGET_SYSTEM_ROOT_RELOCATABLE); | |
030292b7 | 550 | |
478aac75 DE |
551 | debug_file_directory = relocate_gdb_directory (DEBUGDIR, |
552 | DEBUGDIR_RELOCATABLE); | |
030292b7 | 553 | |
478aac75 DE |
554 | gdb_datadir = relocate_gdb_directory (GDB_DATADIR, |
555 | GDB_DATADIR_RELOCATABLE); | |
aa28a74e | 556 | |
0c4a4063 | 557 | #ifdef WITH_PYTHON_PATH |
e6040cbd MS |
558 | { |
559 | /* For later use in helping Python find itself. */ | |
560 | char *tmp = concat (WITH_PYTHON_PATH, SLASH_STRING, "lib", NULL); | |
561 | ||
478aac75 | 562 | python_libdir = relocate_gdb_directory (tmp, PYTHON_PATH_RELOCATABLE); |
e6040cbd MS |
563 | xfree (tmp); |
564 | } | |
0c4a4063 DE |
565 | #endif |
566 | ||
29b0e8a2 JM |
567 | #ifdef RELOC_SRCDIR |
568 | add_substitute_path_rule (RELOC_SRCDIR, | |
b5981e5a | 569 | make_relative_prefix (gdb_program_name, BINDIR, |
29b0e8a2 JM |
570 | RELOC_SRCDIR)); |
571 | #endif | |
572 | ||
4389a95a | 573 | /* There will always be an interpreter. Either the one passed into |
e46e5ccd KS |
574 | this captured main, or one specified by the user at start up, or |
575 | the console. Initialize the interpreter to the one requested by | |
576 | the application. */ | |
11bf1490 | 577 | interpreter_p = xstrdup (context->interpreter_p); |
4389a95a | 578 | |
c906108c SS |
579 | /* Parse arguments and options. */ |
580 | { | |
581 | int c; | |
582 | /* When var field is 0, use flag field to record the equivalent | |
583 | short option (or arbitrary numbers starting at 10 for those | |
584 | with no equivalent). */ | |
49c7e338 AC |
585 | enum { |
586 | OPT_SE = 10, | |
587 | OPT_CD, | |
588 | OPT_ANNOTATE, | |
589 | OPT_STATISTICS, | |
42fa7c0f AC |
590 | OPT_TUI, |
591 | OPT_NOWINDOWS, | |
8320cc4f JK |
592 | OPT_WINDOWS, |
593 | OPT_IX, | |
594 | OPT_IEX | |
49c7e338 | 595 | }; |
c906108c | 596 | static struct option long_options[] = |
c5aa993b | 597 | { |
49c7e338 | 598 | {"tui", no_argument, 0, OPT_TUI}, |
c5aa993b JM |
599 | {"xdb", no_argument, &xdb_commands, 1}, |
600 | {"dbx", no_argument, &dbx_commands, 1}, | |
601 | {"readnow", no_argument, &readnow_symbol_files, 1}, | |
602 | {"r", no_argument, &readnow_symbol_files, 1}, | |
c5aa993b JM |
603 | {"quiet", no_argument, &quiet, 1}, |
604 | {"q", no_argument, &quiet, 1}, | |
605 | {"silent", no_argument, &quiet, 1}, | |
07540c15 | 606 | {"nh", no_argument, &inhibit_home_gdbinit, 1}, |
c5aa993b JM |
607 | {"nx", no_argument, &inhibit_gdbinit, 1}, |
608 | {"n", no_argument, &inhibit_gdbinit, 1}, | |
1a088d06 | 609 | {"batch-silent", no_argument, 0, 'B'}, |
7c953934 | 610 | {"batch", no_argument, &batch_flag, 1}, |
c5aa993b | 611 | |
371d5dec MS |
612 | /* This is a synonym for "--annotate=1". --annotate is now |
613 | preferred, but keep this here for a long time because people | |
614 | will be running emacses which use --fullname. */ | |
c5aa993b JM |
615 | {"fullname", no_argument, 0, 'f'}, |
616 | {"f", no_argument, 0, 'f'}, | |
617 | ||
49c7e338 | 618 | {"annotate", required_argument, 0, OPT_ANNOTATE}, |
c5aa993b | 619 | {"help", no_argument, &print_help, 1}, |
49c7e338 | 620 | {"se", required_argument, 0, OPT_SE}, |
c5aa993b JM |
621 | {"symbols", required_argument, 0, 's'}, |
622 | {"s", required_argument, 0, 's'}, | |
623 | {"exec", required_argument, 0, 'e'}, | |
624 | {"e", required_argument, 0, 'e'}, | |
625 | {"core", required_argument, 0, 'c'}, | |
626 | {"c", required_argument, 0, 'c'}, | |
00546b04 MS |
627 | {"pid", required_argument, 0, 'p'}, |
628 | {"p", required_argument, 0, 'p'}, | |
c5aa993b | 629 | {"command", required_argument, 0, 'x'}, |
8a5a3c82 | 630 | {"eval-command", required_argument, 0, 'X'}, |
c5aa993b | 631 | {"version", no_argument, &print_version, 1}, |
6eaaf48b | 632 | {"configuration", no_argument, &print_configuration, 1}, |
c5aa993b | 633 | {"x", required_argument, 0, 'x'}, |
8a5a3c82 | 634 | {"ex", required_argument, 0, 'X'}, |
8320cc4f JK |
635 | {"init-command", required_argument, 0, OPT_IX}, |
636 | {"init-eval-command", required_argument, 0, OPT_IEX}, | |
637 | {"ix", required_argument, 0, OPT_IX}, | |
638 | {"iex", required_argument, 0, OPT_IEX}, | |
3fc11d3e JM |
639 | #ifdef GDBTK |
640 | {"tclcommand", required_argument, 0, 'z'}, | |
641 | {"enable-external-editor", no_argument, 0, 'y'}, | |
642 | {"editor-command", required_argument, 0, 'w'}, | |
643 | #endif | |
8b93c638 JM |
644 | {"ui", required_argument, 0, 'i'}, |
645 | {"interpreter", required_argument, 0, 'i'}, | |
646 | {"i", required_argument, 0, 'i'}, | |
c5aa993b | 647 | {"directory", required_argument, 0, 'd'}, |
c4093a6a | 648 | {"d", required_argument, 0, 'd'}, |
aae1c79a | 649 | {"data-directory", required_argument, 0, 'D'}, |
8d551b02 | 650 | {"D", required_argument, 0, 'D'}, |
49c7e338 | 651 | {"cd", required_argument, 0, OPT_CD}, |
c5aa993b JM |
652 | {"tty", required_argument, 0, 't'}, |
653 | {"baud", required_argument, 0, 'b'}, | |
654 | {"b", required_argument, 0, 'b'}, | |
42fa7c0f AC |
655 | {"nw", no_argument, NULL, OPT_NOWINDOWS}, |
656 | {"nowindows", no_argument, NULL, OPT_NOWINDOWS}, | |
657 | {"w", no_argument, NULL, OPT_WINDOWS}, | |
658 | {"windows", no_argument, NULL, OPT_WINDOWS}, | |
49c7e338 | 659 | {"statistics", no_argument, 0, OPT_STATISTICS}, |
c5aa993b | 660 | {"write", no_argument, &write_files, 1}, |
552c04a7 | 661 | {"args", no_argument, &set_args, 1}, |
39c76ca3 | 662 | {"l", required_argument, 0, 'l'}, |
4b0ad762 | 663 | {"return-child-result", no_argument, &return_child_result, 1}, |
c5aa993b JM |
664 | {0, no_argument, 0, 0} |
665 | }; | |
c906108c SS |
666 | |
667 | while (1) | |
668 | { | |
669 | int option_index; | |
670 | ||
671 | c = getopt_long_only (argc, argv, "", | |
672 | long_options, &option_index); | |
552c04a7 | 673 | if (c == EOF || set_args) |
c906108c SS |
674 | break; |
675 | ||
676 | /* Long option that takes an argument. */ | |
677 | if (c == 0 && long_options[option_index].flag == 0) | |
678 | c = long_options[option_index].val; | |
679 | ||
680 | switch (c) | |
681 | { | |
682 | case 0: | |
683 | /* Long option that just sets a flag. */ | |
684 | break; | |
49c7e338 | 685 | case OPT_SE: |
c906108c SS |
686 | symarg = optarg; |
687 | execarg = optarg; | |
688 | break; | |
49c7e338 | 689 | case OPT_CD: |
c906108c SS |
690 | cdarg = optarg; |
691 | break; | |
49c7e338 | 692 | case OPT_ANNOTATE: |
c906108c SS |
693 | /* FIXME: what if the syntax is wrong (e.g. not digits)? */ |
694 | annotation_level = atoi (optarg); | |
695 | break; | |
49c7e338 | 696 | case OPT_STATISTICS: |
c906108c | 697 | /* Enable the display of both time and space usage. */ |
bd712aed DE |
698 | set_per_command_time (1); |
699 | set_per_command_space (1); | |
c906108c | 700 | break; |
49c7e338 | 701 | case OPT_TUI: |
021e7609 | 702 | /* --tui is equivalent to -i=tui. */ |
b0da54f1 | 703 | #ifdef TUI |
021e7609 | 704 | xfree (interpreter_p); |
cc4349ed | 705 | interpreter_p = xstrdup (INTERP_TUI); |
b0da54f1 | 706 | #else |
91b35fd0 | 707 | error (_("%s: TUI mode is not supported"), gdb_program_name); |
b0da54f1 | 708 | #endif |
021e7609 | 709 | break; |
42fa7c0f AC |
710 | case OPT_WINDOWS: |
711 | /* FIXME: cagney/2003-03-01: Not sure if this option is | |
712 | actually useful, and if it is, what it should do. */ | |
cc4349ed AS |
713 | #ifdef GDBTK |
714 | /* --windows is equivalent to -i=insight. */ | |
715 | xfree (interpreter_p); | |
716 | interpreter_p = xstrdup (INTERP_INSIGHT); | |
717 | #endif | |
42fa7c0f AC |
718 | break; |
719 | case OPT_NOWINDOWS: | |
720 | /* -nw is equivalent to -i=console. */ | |
721 | xfree (interpreter_p); | |
722 | interpreter_p = xstrdup (INTERP_CONSOLE); | |
42fa7c0f | 723 | break; |
c906108c SS |
724 | case 'f': |
725 | annotation_level = 1; | |
c906108c SS |
726 | break; |
727 | case 's': | |
728 | symarg = optarg; | |
729 | break; | |
730 | case 'e': | |
731 | execarg = optarg; | |
732 | break; | |
733 | case 'c': | |
734 | corearg = optarg; | |
735 | break; | |
00546b04 | 736 | case 'p': |
a4d9b460 | 737 | pidarg = optarg; |
00546b04 | 738 | break; |
c906108c | 739 | case 'x': |
26743505 JK |
740 | { |
741 | struct cmdarg cmdarg = { CMDARG_FILE, optarg }; | |
742 | ||
743 | VEC_safe_push (cmdarg_s, cmdarg_vec, &cmdarg); | |
744 | } | |
8a5a3c82 AS |
745 | break; |
746 | case 'X': | |
26743505 JK |
747 | { |
748 | struct cmdarg cmdarg = { CMDARG_COMMAND, optarg }; | |
749 | ||
750 | VEC_safe_push (cmdarg_s, cmdarg_vec, &cmdarg); | |
751 | } | |
752 | break; | |
8320cc4f JK |
753 | case OPT_IX: |
754 | { | |
755 | struct cmdarg cmdarg = { CMDARG_INIT_FILE, optarg }; | |
756 | ||
757 | VEC_safe_push (cmdarg_s, cmdarg_vec, &cmdarg); | |
758 | } | |
759 | break; | |
760 | case OPT_IEX: | |
761 | { | |
762 | struct cmdarg cmdarg = { CMDARG_INIT_COMMAND, optarg }; | |
763 | ||
764 | VEC_safe_push (cmdarg_s, cmdarg_vec, &cmdarg); | |
765 | } | |
c906108c | 766 | break; |
1a088d06 | 767 | case 'B': |
7c953934 | 768 | batch_flag = batch_silent = 1; |
1a088d06 AS |
769 | gdb_stdout = ui_file_new(); |
770 | break; | |
aae1c79a | 771 | case 'D': |
8d551b02 | 772 | if (optarg[0] == '\0') |
91b35fd0 GB |
773 | error (_("%s: empty path for `--data-directory'"), |
774 | gdb_program_name); | |
8d551b02 | 775 | set_gdb_data_directory (optarg); |
e64e0392 | 776 | gdb_datadir_provided = 1; |
aae1c79a | 777 | break; |
3fc11d3e JM |
778 | #ifdef GDBTK |
779 | case 'z': | |
780 | { | |
371d5dec MS |
781 | extern int gdbtk_test (char *); |
782 | ||
3fc11d3e | 783 | if (!gdbtk_test (optarg)) |
91b35fd0 GB |
784 | error (_("%s: unable to load tclcommand file \"%s\""), |
785 | gdb_program_name, optarg); | |
3fc11d3e JM |
786 | break; |
787 | } | |
788 | case 'y': | |
78f49586 TT |
789 | /* Backwards compatibility only. */ |
790 | break; | |
3fc11d3e JM |
791 | case 'w': |
792 | { | |
3a9b40b6 JK |
793 | /* Set the external editor commands when gdb is farming out files |
794 | to be edited by another program. */ | |
795 | extern char *external_editor_command; | |
796 | ||
3fc11d3e JM |
797 | external_editor_command = xstrdup (optarg); |
798 | break; | |
799 | } | |
800 | #endif /* GDBTK */ | |
fb40c209 | 801 | case 'i': |
4389a95a AC |
802 | xfree (interpreter_p); |
803 | interpreter_p = xstrdup (optarg); | |
fb40c209 | 804 | break; |
c906108c SS |
805 | case 'd': |
806 | dirarg[ndir++] = optarg; | |
807 | if (ndir >= dirsize) | |
808 | { | |
809 | dirsize *= 2; | |
c5aa993b | 810 | dirarg = (char **) xrealloc ((char *) dirarg, |
c906108c SS |
811 | dirsize * sizeof (*dirarg)); |
812 | } | |
813 | break; | |
814 | case 't': | |
815 | ttyarg = optarg; | |
816 | break; | |
817 | case 'q': | |
818 | quiet = 1; | |
819 | break; | |
820 | case 'b': | |
821 | { | |
822 | int i; | |
823 | char *p; | |
824 | ||
825 | i = strtol (optarg, &p, 0); | |
826 | if (i == 0 && p == optarg) | |
075c7033 GB |
827 | warning (_("could not set baud rate to `%s'."), |
828 | optarg); | |
c906108c SS |
829 | else |
830 | baud_rate = i; | |
831 | } | |
046ca86a | 832 | break; |
c906108c SS |
833 | case 'l': |
834 | { | |
835 | int i; | |
836 | char *p; | |
837 | ||
838 | i = strtol (optarg, &p, 0); | |
839 | if (i == 0 && p == optarg) | |
075c7033 GB |
840 | warning (_("could not set timeout limit to `%s'."), |
841 | optarg); | |
c906108c SS |
842 | else |
843 | remote_timeout = i; | |
844 | } | |
845 | break; | |
846 | ||
c906108c | 847 | case '?': |
91b35fd0 GB |
848 | error (_("Use `%s --help' for a complete list of options."), |
849 | gdb_program_name); | |
c906108c SS |
850 | } |
851 | } | |
852 | ||
7c953934 | 853 | if (batch_flag) |
c906108c SS |
854 | quiet = 1; |
855 | } | |
856 | ||
992c7d70 GB |
857 | /* Try to set up an alternate signal stack for SIGSEGV handlers. */ |
858 | setup_alternate_signal_stack (); | |
859 | ||
0f71a2f6 | 860 | /* Initialize all files. Give the interpreter a chance to take |
ba5e7e8d | 861 | control of the console via the deprecated_init_ui_hook (). */ |
b5981e5a | 862 | gdb_init (gdb_program_name); |
c906108c | 863 | |
371d5dec MS |
864 | /* Now that gdb_init has created the initial inferior, we're in |
865 | position to set args for that inferior. */ | |
3f81c18a VP |
866 | if (set_args) |
867 | { | |
868 | /* The remaining options are the command-line options for the | |
869 | inferior. The first one is the sym/exec file, and the rest | |
870 | are arguments. */ | |
871 | if (optind >= argc) | |
91b35fd0 GB |
872 | error (_("%s: `--args' specified but no program specified"), |
873 | gdb_program_name); | |
874 | ||
3f81c18a VP |
875 | symarg = argv[optind]; |
876 | execarg = argv[optind]; | |
877 | ++optind; | |
878 | set_inferior_args_vector (argc - optind, &argv[optind]); | |
879 | } | |
880 | else | |
881 | { | |
882 | /* OK, that's all the options. */ | |
883 | ||
884 | /* The first argument, if specified, is the name of the | |
885 | executable. */ | |
886 | if (optind < argc) | |
887 | { | |
888 | symarg = argv[optind]; | |
889 | execarg = argv[optind]; | |
890 | optind++; | |
891 | } | |
892 | ||
893 | /* If the user hasn't already specified a PID or the name of a | |
894 | core file, then a second optional argument is allowed. If | |
895 | present, this argument should be interpreted as either a | |
896 | PID or a core file, whichever works. */ | |
897 | if (pidarg == NULL && corearg == NULL && optind < argc) | |
898 | { | |
899 | pid_or_core_arg = argv[optind]; | |
900 | optind++; | |
901 | } | |
902 | ||
903 | /* Any argument left on the command line is unexpected and | |
904 | will be ignored. Inform the user. */ | |
905 | if (optind < argc) | |
3e43a32a MS |
906 | fprintf_unfiltered (gdb_stderr, |
907 | _("Excess command line " | |
908 | "arguments ignored. (%s%s)\n"), | |
3f81c18a VP |
909 | argv[optind], |
910 | (optind == argc - 1) ? "" : " ..."); | |
911 | } | |
912 | ||
025bb325 | 913 | /* Lookup gdbinit files. Note that the gdbinit file name may be |
371d5dec MS |
914 | overriden during file initialization, so get_init_files should be |
915 | called after gdb_init. */ | |
57a46001 JG |
916 | get_init_files (&system_gdbinit, &home_gdbinit, &local_gdbinit); |
917 | ||
c906108c | 918 | /* Do these (and anything which might call wrap_here or *_filtered) |
4389a95a AC |
919 | after initialize_all_files() but before the interpreter has been |
920 | installed. Otherwize the help/version messages will be eaten by | |
921 | the interpreter's output handler. */ | |
922 | ||
c906108c SS |
923 | if (print_version) |
924 | { | |
925 | print_gdb_version (gdb_stdout); | |
926 | wrap_here (""); | |
927 | printf_filtered ("\n"); | |
928 | exit (0); | |
929 | } | |
930 | ||
931 | if (print_help) | |
932 | { | |
933 | print_gdb_help (gdb_stdout); | |
934 | fputs_unfiltered ("\n", gdb_stdout); | |
935 | exit (0); | |
936 | } | |
937 | ||
6eaaf48b EZ |
938 | if (print_configuration) |
939 | { | |
940 | print_gdb_configuration (gdb_stdout); | |
941 | wrap_here (""); | |
942 | printf_filtered ("\n"); | |
943 | exit (0); | |
944 | } | |
945 | ||
4389a95a AC |
946 | /* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets |
947 | GDB retain the old MI1 interpreter startup behavior. Output the | |
948 | copyright message before the interpreter is installed. That way | |
949 | it isn't encapsulated in MI output. */ | |
950 | if (!quiet && strcmp (interpreter_p, INTERP_MI1) == 0) | |
951 | { | |
371d5dec MS |
952 | /* Print all the junk at the top, with trailing "..." if we are |
953 | about to read a symbol file (possibly slowly). */ | |
4389a95a AC |
954 | print_gdb_version (gdb_stdout); |
955 | if (symarg) | |
956 | printf_filtered (".."); | |
957 | wrap_here (""); | |
e896d70e | 958 | printf_filtered ("\n"); |
371d5dec MS |
959 | gdb_flush (gdb_stdout); /* Force to screen during slow |
960 | operations. */ | |
4389a95a AC |
961 | } |
962 | ||
4389a95a | 963 | /* Install the default UI. All the interpreters should have had a |
371d5dec | 964 | look at things by now. Initialize the default interpreter. */ |
4389a95a AC |
965 | |
966 | { | |
967 | /* Find it. */ | |
968 | struct interp *interp = interp_lookup (interpreter_p); | |
b8d56208 | 969 | |
4389a95a | 970 | if (interp == NULL) |
8a3fe4f8 | 971 | error (_("Interpreter `%s' unrecognized"), interpreter_p); |
4389a95a | 972 | /* Install it. */ |
683f2885 | 973 | if (!interp_set (interp, 1)) |
fd0ef3dd | 974 | error (_("Interpreter `%s' failed to initialize."), interpreter_p); |
4389a95a AC |
975 | } |
976 | ||
977 | /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets | |
978 | GDB retain the old MI1 interpreter startup behavior. Output the | |
979 | copyright message after the interpreter is installed when it is | |
980 | any sane interpreter. */ | |
981 | if (!quiet && !current_interp_named_p (INTERP_MI1)) | |
c906108c | 982 | { |
371d5dec MS |
983 | /* Print all the junk at the top, with trailing "..." if we are |
984 | about to read a symbol file (possibly slowly). */ | |
c906108c SS |
985 | print_gdb_version (gdb_stdout); |
986 | if (symarg) | |
987 | printf_filtered (".."); | |
c5aa993b | 988 | wrap_here (""); |
e896d70e | 989 | printf_filtered ("\n"); |
371d5dec MS |
990 | gdb_flush (gdb_stdout); /* Force to screen during slow |
991 | operations. */ | |
c906108c SS |
992 | } |
993 | ||
e896d70e | 994 | /* Set off error and warning messages with a blank line. */ |
075c7033 | 995 | xfree (warning_pre_print); |
defc6f8c | 996 | warning_pre_print = _("\nwarning: "); |
c906108c | 997 | |
16e7150e JG |
998 | /* Read and execute the system-wide gdbinit file, if it exists. |
999 | This is done *before* all the command line arguments are | |
1000 | processed; it sets global parameters, which are independent of | |
1001 | what file you are debugging or what directory you are in. */ | |
1002 | if (system_gdbinit && !inhibit_gdbinit) | |
97c18565 | 1003 | catch_command_errors_const (source_script, system_gdbinit, 0); |
16e7150e | 1004 | |
c906108c SS |
1005 | /* Read and execute $HOME/.gdbinit file, if it exists. This is done |
1006 | *before* all the command line arguments are processed; it sets | |
1007 | global parameters, which are independent of what file you are | |
1008 | debugging or what directory you are in. */ | |
c906108c | 1009 | |
07540c15 | 1010 | if (home_gdbinit && !inhibit_gdbinit && !inhibit_home_gdbinit) |
97c18565 | 1011 | catch_command_errors_const (source_script, home_gdbinit, 0); |
c906108c | 1012 | |
2d7b58e8 JK |
1013 | /* Process '-ix' and '-iex' options early. */ |
1014 | for (i = 0; VEC_iterate (cmdarg_s, cmdarg_vec, i, cmdarg_p); i++) | |
1015 | switch (cmdarg_p->type) | |
1016 | { | |
1017 | case CMDARG_INIT_FILE: | |
50dd9793 | 1018 | catch_command_errors_const (source_script, cmdarg_p->string, |
97c18565 | 1019 | !batch_flag); |
2d7b58e8 JK |
1020 | break; |
1021 | case CMDARG_INIT_COMMAND: | |
1022 | catch_command_errors (execute_command, cmdarg_p->string, | |
97c18565 | 1023 | !batch_flag); |
2d7b58e8 JK |
1024 | break; |
1025 | } | |
1026 | ||
c906108c SS |
1027 | /* Now perform all the actions indicated by the arguments. */ |
1028 | if (cdarg != NULL) | |
1029 | { | |
97c18565 | 1030 | catch_command_errors (cd_command, cdarg, 0); |
c906108c | 1031 | } |
c906108c SS |
1032 | |
1033 | for (i = 0; i < ndir; i++) | |
97c18565 | 1034 | catch_command_errors (directory_switch, dirarg[i], 0); |
b8c9b27d | 1035 | xfree (dirarg); |
c906108c | 1036 | |
88a1906b | 1037 | /* Skip auto-loading section-specified scripts until we've sourced |
371d5dec MS |
1038 | local_gdbinit (which is often used to augment the source search |
1039 | path). */ | |
bf88dd68 JK |
1040 | save_auto_load = global_auto_load; |
1041 | global_auto_load = 0; | |
88a1906b | 1042 | |
c906108c SS |
1043 | if (execarg != NULL |
1044 | && symarg != NULL | |
5cb316ef | 1045 | && strcmp (execarg, symarg) == 0) |
c906108c | 1046 | { |
11cf8741 JM |
1047 | /* The exec file and the symbol-file are the same. If we can't |
1048 | open it, better only print one error message. | |
371d5dec | 1049 | catch_command_errors returns non-zero on success! */ |
5f08566b | 1050 | if (catch_command_errors_const (exec_file_attach, execarg, |
97c18565 | 1051 | !batch_flag)) |
69150c3d | 1052 | catch_command_errors_const (symbol_file_add_main, symarg, |
97c18565 | 1053 | !batch_flag); |
c906108c SS |
1054 | } |
1055 | else | |
1056 | { | |
1057 | if (execarg != NULL) | |
5f08566b | 1058 | catch_command_errors_const (exec_file_attach, execarg, |
97c18565 | 1059 | !batch_flag); |
c906108c | 1060 | if (symarg != NULL) |
69150c3d | 1061 | catch_command_errors_const (symbol_file_add_main, symarg, |
97c18565 | 1062 | !batch_flag); |
c906108c | 1063 | } |
c906108c | 1064 | |
a4d9b460 | 1065 | if (corearg && pidarg) |
3e43a32a MS |
1066 | error (_("Can't attach to process and specify " |
1067 | "a core file at the same time.")); | |
a4d9b460 | 1068 | |
c906108c | 1069 | if (corearg != NULL) |
97c18565 | 1070 | catch_command_errors (core_file_command, corearg, !batch_flag); |
a4d9b460 | 1071 | else if (pidarg != NULL) |
97c18565 | 1072 | catch_command_errors (attach_command, pidarg, !batch_flag); |
a4d9b460 | 1073 | else if (pid_or_core_arg) |
c906108c | 1074 | { |
a4d9b460 PA |
1075 | /* The user specified 'gdb program pid' or gdb program core'. |
1076 | If pid_or_core_arg's first character is a digit, try attach | |
1077 | first and then corefile. Otherwise try just corefile. */ | |
00546b04 | 1078 | |
a4d9b460 | 1079 | if (isdigit (pid_or_core_arg[0])) |
11cf8741 | 1080 | { |
a4d9b460 | 1081 | if (catch_command_errors (attach_command, pid_or_core_arg, |
97c18565 | 1082 | !batch_flag) == 0) |
a4d9b460 | 1083 | catch_command_errors (core_file_command, pid_or_core_arg, |
97c18565 | 1084 | !batch_flag); |
11cf8741 | 1085 | } |
a4d9b460 PA |
1086 | else /* Can't be a pid, better be a corefile. */ |
1087 | catch_command_errors (core_file_command, pid_or_core_arg, | |
97c18565 | 1088 | !batch_flag); |
c906108c | 1089 | } |
c906108c SS |
1090 | |
1091 | if (ttyarg != NULL) | |
3f81c18a | 1092 | set_inferior_io_terminal (ttyarg); |
c906108c | 1093 | |
371d5dec | 1094 | /* Error messages should no longer be distinguished with extra output. */ |
defc6f8c | 1095 | warning_pre_print = _("warning: "); |
c906108c SS |
1096 | |
1097 | /* Read the .gdbinit file in the current directory, *if* it isn't | |
1098 | the same as the $HOME/.gdbinit file (it should exist, also). */ | |
bf88dd68 JK |
1099 | if (local_gdbinit) |
1100 | { | |
1101 | auto_load_local_gdbinit_pathname = gdb_realpath (local_gdbinit); | |
1102 | ||
bccbefd2 | 1103 | if (!inhibit_gdbinit && auto_load_local_gdbinit |
4dc84fd1 JK |
1104 | && file_is_auto_load_safe (local_gdbinit, |
1105 | _("auto-load: Loading .gdbinit " | |
1106 | "file \"%s\".\n"), | |
1107 | local_gdbinit)) | |
bf88dd68 JK |
1108 | { |
1109 | auto_load_local_gdbinit_loaded = 1; | |
1110 | ||
97c18565 | 1111 | catch_command_errors_const (source_script, local_gdbinit, 0); |
bf88dd68 JK |
1112 | } |
1113 | } | |
c906108c | 1114 | |
88a1906b DE |
1115 | /* Now that all .gdbinit's have been read and all -d options have been |
1116 | processed, we can read any scripts mentioned in SYMARG. | |
1117 | We wait until now because it is common to add to the source search | |
1118 | path in local_gdbinit. */ | |
bf88dd68 | 1119 | global_auto_load = save_auto_load; |
7f6130ff JK |
1120 | ALL_OBJFILES (objfile) |
1121 | load_auto_scripts_for_objfile (objfile); | |
88a1906b | 1122 | |
8320cc4f | 1123 | /* Process '-x' and '-ex' options. */ |
26743505 JK |
1124 | for (i = 0; VEC_iterate (cmdarg_s, cmdarg_vec, i, cmdarg_p); i++) |
1125 | switch (cmdarg_p->type) | |
c906108c | 1126 | { |
26743505 | 1127 | case CMDARG_FILE: |
50dd9793 | 1128 | catch_command_errors_const (source_script, cmdarg_p->string, |
97c18565 | 1129 | !batch_flag); |
26743505 JK |
1130 | break; |
1131 | case CMDARG_COMMAND: | |
1132 | catch_command_errors (execute_command, cmdarg_p->string, | |
97c18565 | 1133 | !batch_flag); |
26743505 | 1134 | break; |
c906108c | 1135 | } |
c906108c | 1136 | |
371d5dec MS |
1137 | /* Read in the old history after all the command files have been |
1138 | read. */ | |
c5aa993b | 1139 | init_history (); |
c906108c | 1140 | |
7c953934 | 1141 | if (batch_flag) |
c906108c SS |
1142 | { |
1143 | /* We have hit the end of the batch file. */ | |
4b0ad762 | 1144 | quit_force (NULL, 0); |
c906108c SS |
1145 | } |
1146 | ||
c906108c | 1147 | /* Show time and/or space usage. */ |
0f3bb72e | 1148 | do_cleanups (pre_stat_chain); |
c906108c | 1149 | |
11cf8741 JM |
1150 | /* NOTE: cagney/1999-11-07: There is probably no reason for not |
1151 | moving this loop and the code found in captured_command_loop() | |
1152 | into the command_loop() proper. The main thing holding back that | |
371d5dec | 1153 | change - SET_TOP_LEVEL() - has been eliminated. */ |
11cf8741 JM |
1154 | while (1) |
1155 | { | |
1156 | catch_errors (captured_command_loop, 0, "", RETURN_MASK_ALL); | |
1157 | } | |
11cf8741 JM |
1158 | /* No exit -- exit is through quit_command. */ |
1159 | } | |
c906108c | 1160 | |
11cf8741 | 1161 | int |
f15ab4a7 | 1162 | gdb_main (struct captured_main_args *args) |
11cf8741 | 1163 | { |
f15ab4a7 | 1164 | catch_errors (captured_main, args, "", RETURN_MASK_ALL); |
864dbc90 AC |
1165 | /* The only way to end up here is by an error (normal exit is |
1166 | handled by quit_force()), hence always return an error status. */ | |
1167 | return 1; | |
c906108c SS |
1168 | } |
1169 | ||
11cf8741 | 1170 | |
c906108c SS |
1171 | /* Don't use *_filtered for printing help. We don't want to prompt |
1172 | for continue no matter how small the screen or how much we're going | |
1173 | to print. */ | |
1174 | ||
1175 | static void | |
d9fcf2fb | 1176 | print_gdb_help (struct ui_file *stream) |
c906108c | 1177 | { |
50dd9793 PA |
1178 | const char *system_gdbinit; |
1179 | const char *home_gdbinit; | |
1180 | const char *local_gdbinit; | |
16e7150e JG |
1181 | |
1182 | get_init_files (&system_gdbinit, &home_gdbinit, &local_gdbinit); | |
1183 | ||
b187bec1 EZ |
1184 | /* Note: The options in the list below are only approximately sorted |
1185 | in the alphabetical order, so as to group closely related options | |
1186 | together. */ | |
defc6f8c | 1187 | fputs_unfiltered (_("\ |
c906108c | 1188 | This is the GNU debugger. Usage:\n\n\ |
552c04a7 TT |
1189 | gdb [options] [executable-file [core-file or process-id]]\n\ |
1190 | gdb [options] --args executable-file [inferior-arguments ...]\n\n\ | |
defc6f8c TT |
1191 | "), stream); |
1192 | fputs_unfiltered (_("\ | |
b187bec1 | 1193 | Selection of debuggee and its files:\n\n\ |
552c04a7 | 1194 | --args Arguments after executable-file are passed to inferior\n\ |
b187bec1 EZ |
1195 | --core=COREFILE Analyze the core dump COREFILE.\n\ |
1196 | --exec=EXECFILE Use EXECFILE as the executable.\n\ | |
1197 | --pid=PID Attach to running process PID.\n\ | |
1198 | --directory=DIR Search for source files in DIR.\n\ | |
1199 | --se=FILE Use FILE as symbol file and executable file.\n\ | |
1200 | --symbols=SYMFILE Read symbols from SYMFILE.\n\ | |
1201 | --readnow Fully read symbol files on first access.\n\ | |
1202 | --write Set writing into executable and core files.\n\n\ | |
defc6f8c TT |
1203 | "), stream); |
1204 | fputs_unfiltered (_("\ | |
b187bec1 | 1205 | Initial commands and command files:\n\n\ |
8a5a3c82 | 1206 | --command=FILE, -x Execute GDB commands from FILE.\n\ |
b187bec1 EZ |
1207 | --init-command=FILE, -ix\n\ |
1208 | Like -x but execute commands before loading inferior.\n\ | |
8a5a3c82 AS |
1209 | --eval-command=COMMAND, -ex\n\ |
1210 | Execute a single GDB command.\n\ | |
1211 | May be used multiple times and in conjunction\n\ | |
1212 | with --command.\n\ | |
b187bec1 EZ |
1213 | --init-eval-command=COMMAND, -iex\n\ |
1214 | Like -ex but before loading inferior.\n\ | |
1215 | --nh Do not read ~/.gdbinit.\n\ | |
1216 | --nx Do not read any .gdbinit files in any directory.\n\n\ | |
defc6f8c TT |
1217 | "), stream); |
1218 | fputs_unfiltered (_("\ | |
b187bec1 | 1219 | Output and user interface control:\n\n\ |
c906108c | 1220 | --fullname Output information used by emacs-GDB interface.\n\ |
8b93c638 JM |
1221 | --interpreter=INTERP\n\ |
1222 | Select a specific interpreter / user interface\n\ | |
c906108c | 1223 | --tty=TTY Use TTY for input/output by the program being debugged.\n\ |
b187bec1 EZ |
1224 | -w Use the GUI interface.\n\ |
1225 | --nw Do not use the GUI interface.\n\ | |
defc6f8c | 1226 | "), stream); |
c906108c | 1227 | #if defined(TUI) |
defc6f8c | 1228 | fputs_unfiltered (_("\ |
c906108c | 1229 | --tui Use a terminal user interface.\n\ |
defc6f8c | 1230 | "), stream); |
c906108c | 1231 | #endif |
481860b3 | 1232 | fputs_unfiltered (_("\ |
b187bec1 | 1233 | --dbx DBX compatibility mode.\n\ |
c906108c | 1234 | --xdb XDB compatibility mode.\n\ |
adcc0a31 | 1235 | -q, --quiet, --silent\n\ |
1236 | Do not print version number on startup.\n\n\ | |
b187bec1 EZ |
1237 | "), stream); |
1238 | fputs_unfiltered (_("\ | |
1239 | Operating modes:\n\n\ | |
1240 | --batch Exit after processing options.\n\ | |
1241 | --batch-silent Like --batch, but suppress all gdb stdout output.\n\ | |
1242 | --return-child-result\n\ | |
1243 | GDB exit code will be the child's exit code.\n\ | |
1244 | --configuration Print details about GDB configuration and then exit.\n\ | |
1245 | --help Print this message and then exit.\n\ | |
1246 | --version Print version information and then exit.\n\n\ | |
1247 | Remote debugging options:\n\n\ | |
1248 | -b BAUDRATE Set serial port baud rate used for remote debugging.\n\ | |
1249 | -l TIMEOUT Set timeout in seconds for remote debugging.\n\n\ | |
1250 | Other options:\n\n\ | |
1251 | --cd=DIR Change current directory to DIR.\n\ | |
8d551b02 DE |
1252 | --data-directory=DIR, -D\n\ |
1253 | Set GDB's data-directory to DIR.\n\ | |
defc6f8c | 1254 | "), stream); |
defc6f8c | 1255 | fputs_unfiltered (_("\n\ |
16e7150e JG |
1256 | At startup, GDB reads the following init files and executes their commands:\n\ |
1257 | "), stream); | |
1258 | if (system_gdbinit) | |
1259 | fprintf_unfiltered (stream, _("\ | |
1260 | * system-wide init file: %s\n\ | |
1261 | "), system_gdbinit); | |
1262 | if (home_gdbinit) | |
1263 | fprintf_unfiltered (stream, _("\ | |
1264 | * user-specific init file: %s\n\ | |
1265 | "), home_gdbinit); | |
1266 | if (local_gdbinit) | |
1267 | fprintf_unfiltered (stream, _("\ | |
bf88dd68 | 1268 | * local init file (see also 'set auto-load local-gdbinit'): ./%s\n\ |
16e7150e JG |
1269 | "), local_gdbinit); |
1270 | fputs_unfiltered (_("\n\ | |
c906108c SS |
1271 | For more information, type \"help\" from within GDB, or consult the\n\ |
1272 | GDB manual (available as on-line info or a printed manual).\n\ | |
defc6f8c | 1273 | "), stream); |
c16158bc JM |
1274 | if (REPORT_BUGS_TO[0] && stream == gdb_stdout) |
1275 | fprintf_unfiltered (stream, _("\ | |
1276 | Report bugs to \"%s\".\n\ | |
1277 | "), REPORT_BUGS_TO); | |
c906108c | 1278 | } |