Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
4389a95a | 2 | |
61baf725 | 3 | Copyright (C) 1986-2017 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" |
f60ee22e | 48 | #include <vector> |
b5981e5a | 49 | |
4389a95a AC |
50 | /* The selected interpreter. This will be used as a set command |
51 | variable, so it should always be malloc'ed - since | |
371d5dec | 52 | do_setshow_command will free it. */ |
fb40c209 | 53 | char *interpreter_p; |
fb40c209 | 54 | |
371d5dec | 55 | /* Whether dbx commands will be handled. */ |
c906108c SS |
56 | int dbx_commands = 0; |
57 | ||
030292b7 DJ |
58 | /* System root path, used to find libraries etc. */ |
59 | char *gdb_sysroot = 0; | |
60 | ||
b14b1491 TT |
61 | /* GDB datadir, used to store data files. */ |
62 | char *gdb_datadir = 0; | |
63 | ||
e64e0392 DE |
64 | /* Non-zero if GDB_DATADIR was provided on the command line. |
65 | This doesn't track whether data-directory is set later from the | |
66 | command line, but we don't reread system.gdbinit when that happens. */ | |
67 | static int gdb_datadir_provided = 0; | |
68 | ||
0c4a4063 DE |
69 | /* If gdb was configured with --with-python=/path, |
70 | the possibly relocated path to python's lib directory. */ | |
71 | char *python_libdir = 0; | |
72 | ||
371d5dec | 73 | /* Target IO streams. */ |
449092f6 | 74 | struct ui_file *gdb_stdtargin; |
22e8e3c7 | 75 | struct ui_file *gdb_stdtarg; |
449092f6 | 76 | struct ui_file *gdb_stdtargerr; |
c906108c | 77 | |
7c953934 TT |
78 | /* True if --batch or --batch-silent was seen. */ |
79 | int batch_flag = 0; | |
80 | ||
1a088d06 AS |
81 | /* Support for the --batch-silent option. */ |
82 | int batch_silent = 0; | |
83 | ||
4b0ad762 AS |
84 | /* Support for --return-child-result option. |
85 | Set the default to -1 to return error in the case | |
86 | that the program does not run or does not complete. */ | |
87 | int return_child_result = 0; | |
88 | int return_child_result_value = -1; | |
89 | ||
c906108c | 90 | |
16e7150e JG |
91 | /* GDB as it has been invoked from the command line (i.e. argv[0]). */ |
92 | static char *gdb_program_name; | |
93 | ||
c88a1531 AB |
94 | /* Return read only pointer to GDB_PROGRAM_NAME. */ |
95 | const char * | |
96 | get_gdb_program_name (void) | |
97 | { | |
98 | return gdb_program_name; | |
99 | } | |
100 | ||
d9fcf2fb | 101 | static void print_gdb_help (struct ui_file *); |
c906108c | 102 | |
8d551b02 DE |
103 | /* Set the data-directory parameter to NEW_DATADIR. |
104 | If NEW_DATADIR is not a directory then a warning is printed. | |
105 | We don't signal an error for backward compatibility. */ | |
106 | ||
107 | void | |
108 | set_gdb_data_directory (const char *new_datadir) | |
109 | { | |
110 | struct stat st; | |
111 | ||
112 | if (stat (new_datadir, &st) < 0) | |
113 | { | |
114 | int save_errno = errno; | |
115 | ||
116 | fprintf_unfiltered (gdb_stderr, "Warning: "); | |
117 | print_sys_errmsg (new_datadir, save_errno); | |
118 | } | |
119 | else if (!S_ISDIR (st.st_mode)) | |
120 | warning (_("%s is not a directory."), new_datadir); | |
121 | ||
122 | xfree (gdb_datadir); | |
14278e1f | 123 | gdb_datadir = gdb_realpath (new_datadir).release (); |
8d551b02 DE |
124 | |
125 | /* gdb_realpath won't return an absolute path if the path doesn't exist, | |
126 | but we still want to record an absolute path here. If the user entered | |
127 | "../foo" and "../foo" doesn't exist then we'll record $(pwd)/../foo which | |
128 | isn't canonical, but that's ok. */ | |
129 | if (!IS_ABSOLUTE_PATH (gdb_datadir)) | |
130 | { | |
e3e41d58 | 131 | gdb::unique_xmalloc_ptr<char> abs_datadir = gdb_abspath (gdb_datadir); |
8d551b02 DE |
132 | |
133 | xfree (gdb_datadir); | |
e3e41d58 | 134 | gdb_datadir = abs_datadir.release (); |
8d551b02 DE |
135 | } |
136 | } | |
137 | ||
b14b1491 TT |
138 | /* Relocate a file or directory. PROGNAME is the name by which gdb |
139 | was invoked (i.e., argv[0]). INITIAL is the default value for the | |
140 | file or directory. FLAG is true if the value is relocatable, false | |
141 | otherwise. Returns a newly allocated string; this may return NULL | |
142 | under the same conditions as make_relative_prefix. */ | |
478aac75 | 143 | |
b14b1491 TT |
144 | static char * |
145 | relocate_path (const char *progname, const char *initial, int flag) | |
146 | { | |
147 | if (flag) | |
148 | return make_relative_prefix (progname, BINDIR, initial); | |
149 | return xstrdup (initial); | |
150 | } | |
151 | ||
152 | /* Like relocate_path, but specifically checks for a directory. | |
153 | INITIAL is relocated according to the rules of relocate_path. If | |
154 | the result is a directory, it is used; otherwise, INITIAL is used. | |
155 | The chosen directory is then canonicalized using lrealpath. This | |
156 | function always returns a newly-allocated string. */ | |
478aac75 DE |
157 | |
158 | char * | |
159 | relocate_gdb_directory (const char *initial, int flag) | |
b14b1491 TT |
160 | { |
161 | char *dir; | |
162 | ||
478aac75 | 163 | dir = relocate_path (gdb_program_name, initial, flag); |
b14b1491 TT |
164 | if (dir) |
165 | { | |
166 | struct stat s; | |
167 | ||
78a8b30e | 168 | if (*dir == '\0' || stat (dir, &s) != 0 || !S_ISDIR (s.st_mode)) |
b14b1491 TT |
169 | { |
170 | xfree (dir); | |
171 | dir = NULL; | |
172 | } | |
173 | } | |
174 | if (!dir) | |
175 | dir = xstrdup (initial); | |
176 | ||
177 | /* Canonicalize the directory. */ | |
178 | if (*dir) | |
179 | { | |
180 | char *canon_sysroot = lrealpath (dir); | |
b8d56208 | 181 | |
b14b1491 TT |
182 | if (canon_sysroot) |
183 | { | |
184 | xfree (dir); | |
185 | dir = canon_sysroot; | |
186 | } | |
187 | } | |
188 | ||
189 | return dir; | |
190 | } | |
191 | ||
371d5dec MS |
192 | /* Compute the locations of init files that GDB should source and |
193 | return them in SYSTEM_GDBINIT, HOME_GDBINIT, LOCAL_GDBINIT. If | |
194 | there is no system gdbinit (resp. home gdbinit and local gdbinit) | |
195 | to be loaded, then SYSTEM_GDBINIT (resp. HOME_GDBINIT and | |
196 | LOCAL_GDBINIT) is set to NULL. */ | |
16e7150e | 197 | static void |
50dd9793 PA |
198 | get_init_files (const char **system_gdbinit, |
199 | const char **home_gdbinit, | |
200 | const char **local_gdbinit) | |
16e7150e | 201 | { |
50dd9793 | 202 | static const char *sysgdbinit = NULL; |
16e7150e | 203 | static char *homeinit = NULL; |
50dd9793 | 204 | static const char *localinit = NULL; |
16e7150e JG |
205 | static int initialized = 0; |
206 | ||
207 | if (!initialized) | |
208 | { | |
209 | struct stat homebuf, cwdbuf, s; | |
e64e0392 | 210 | char *homedir; |
16e7150e | 211 | |
b14b1491 | 212 | if (SYSTEM_GDBINIT[0]) |
16e7150e | 213 | { |
e64e0392 DE |
214 | int datadir_len = strlen (GDB_DATADIR); |
215 | int sys_gdbinit_len = strlen (SYSTEM_GDBINIT); | |
216 | char *relocated_sysgdbinit; | |
217 | ||
218 | /* If SYSTEM_GDBINIT lives in data-directory, and data-directory | |
219 | has been provided, search for SYSTEM_GDBINIT there. */ | |
220 | if (gdb_datadir_provided | |
221 | && datadir_len < sys_gdbinit_len | |
b5981e5a EZ |
222 | && filename_ncmp (SYSTEM_GDBINIT, GDB_DATADIR, datadir_len) == 0 |
223 | && IS_DIR_SEPARATOR (SYSTEM_GDBINIT[datadir_len])) | |
e64e0392 DE |
224 | { |
225 | /* Append the part of SYSTEM_GDBINIT that follows GDB_DATADIR | |
226 | to gdb_datadir. */ | |
cc75e0fd | 227 | char *tmp_sys_gdbinit = xstrdup (&SYSTEM_GDBINIT[datadir_len]); |
e64e0392 DE |
228 | char *p; |
229 | ||
b5981e5a | 230 | for (p = tmp_sys_gdbinit; IS_DIR_SEPARATOR (*p); ++p) |
e64e0392 DE |
231 | continue; |
232 | relocated_sysgdbinit = concat (gdb_datadir, SLASH_STRING, p, | |
b36cec19 | 233 | (char *) NULL); |
e64e0392 DE |
234 | xfree (tmp_sys_gdbinit); |
235 | } | |
236 | else | |
237 | { | |
238 | relocated_sysgdbinit = relocate_path (gdb_program_name, | |
239 | SYSTEM_GDBINIT, | |
240 | SYSTEM_GDBINIT_RELOCATABLE); | |
241 | } | |
b14b1491 | 242 | if (relocated_sysgdbinit && stat (relocated_sysgdbinit, &s) == 0) |
16e7150e JG |
243 | sysgdbinit = relocated_sysgdbinit; |
244 | else | |
245 | xfree (relocated_sysgdbinit); | |
246 | } | |
16e7150e JG |
247 | |
248 | homedir = getenv ("HOME"); | |
249 | ||
250 | /* If the .gdbinit file in the current directory is the same as | |
251 | the $HOME/.gdbinit file, it should not be sourced. homebuf | |
025bb325 | 252 | and cwdbuf are used in that purpose. Make sure that the stats |
16e7150e JG |
253 | are zero in case one of them fails (this guarantees that they |
254 | won't match if either exists). */ | |
255 | ||
256 | memset (&homebuf, 0, sizeof (struct stat)); | |
257 | memset (&cwdbuf, 0, sizeof (struct stat)); | |
258 | ||
259 | if (homedir) | |
260 | { | |
261 | homeinit = xstrprintf ("%s/%s", homedir, gdbinit); | |
262 | if (stat (homeinit, &homebuf) != 0) | |
263 | { | |
264 | xfree (homeinit); | |
265 | homeinit = NULL; | |
266 | } | |
267 | } | |
268 | ||
269 | if (stat (gdbinit, &cwdbuf) == 0) | |
270 | { | |
271 | if (!homeinit | |
272 | || memcmp ((char *) &homebuf, (char *) &cwdbuf, | |
273 | sizeof (struct stat))) | |
274 | localinit = gdbinit; | |
275 | } | |
276 | ||
277 | initialized = 1; | |
278 | } | |
279 | ||
280 | *system_gdbinit = sysgdbinit; | |
281 | *home_gdbinit = homeinit; | |
282 | *local_gdbinit = localinit; | |
283 | } | |
284 | ||
992c7d70 GB |
285 | /* Try to set up an alternate signal stack for SIGSEGV handlers. |
286 | This allows us to handle SIGSEGV signals generated when the | |
287 | normal process stack is exhausted. If this stack is not set | |
288 | up (sigaltstack is unavailable or fails) and a SIGSEGV is | |
289 | generated when the normal stack is exhausted then the program | |
290 | will behave as though no SIGSEGV handler was installed. */ | |
291 | ||
292 | static void | |
293 | setup_alternate_signal_stack (void) | |
294 | { | |
295 | #ifdef HAVE_SIGALTSTACK | |
296 | stack_t ss; | |
297 | ||
f39c07ac JB |
298 | /* FreeBSD versions older than 11.0 use char * for ss_sp instead of |
299 | void *. This cast works with both types. */ | |
300 | ss.ss_sp = (char *) xmalloc (SIGSTKSZ); | |
992c7d70 GB |
301 | ss.ss_size = SIGSTKSZ; |
302 | ss.ss_flags = 0; | |
303 | ||
304 | sigaltstack(&ss, NULL); | |
305 | #endif | |
306 | } | |
307 | ||
bf469271 | 308 | /* Call command_loop. */ |
11cf8741 | 309 | |
fcc8fb2f PA |
310 | /* Prevent inlining this function for the benefit of GDB's selftests |
311 | in the testsuite. Those tests want to run GDB under GDB and stop | |
312 | here. */ | |
313 | static void captured_command_loop () __attribute__((noinline)); | |
314 | ||
bf469271 PA |
315 | static void |
316 | captured_command_loop () | |
c906108c | 317 | { |
f38d3ad1 PA |
318 | struct ui *ui = current_ui; |
319 | ||
bb5291d0 | 320 | /* Top-level execution commands can be run in the background from |
b4a14fd0 | 321 | here on. */ |
cb814510 | 322 | current_ui->async = 1; |
b4a14fd0 | 323 | |
3b12939d PA |
324 | /* Give the interpreter a chance to print a prompt, if necessary */ |
325 | if (ui->prompt_state != PROMPT_BLOCKED) | |
326 | interp_pre_command_loop (top_level_interpreter ()); | |
b2d86570 PA |
327 | |
328 | /* Now it's time to start the event loop. */ | |
329 | start_event_loop (); | |
330 | ||
11cf8741 JM |
331 | /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton |
332 | would clean things up (restoring the cleanup chain) to the state | |
333 | they were just prior to the call. Technically, this means that | |
e26cc349 | 334 | the do_cleanups() below is redundant. Unfortunately, many FUNCs |
11cf8741 JM |
335 | are not that well behaved. do_cleanups should either be replaced |
336 | with a do_cleanups call (to cover the problem) or an assertion | |
371d5dec | 337 | check to detect bad FUNCs code. */ |
6328eb38 | 338 | do_cleanups (all_cleanups ()); |
11cf8741 | 339 | /* If the command_loop returned, normally (rather than threw an |
bf469271 PA |
340 | error) we try to quit. If the quit is aborted, our caller |
341 | catches the signal and restarts the command loop. */ | |
268a799a | 342 | quit_command (NULL, ui->instream == ui->stdin_stream); |
11cf8741 JM |
343 | } |
344 | ||
013af3fc | 345 | /* Handle command errors thrown from within catch_command_errors. */ |
94696ad3 PA |
346 | |
347 | static int | |
284e6217 | 348 | handle_command_errors (struct gdb_exception e) |
94696ad3 PA |
349 | { |
350 | if (e.reason < 0) | |
351 | { | |
352 | exception_print (gdb_stderr, e); | |
353 | ||
354 | /* If any exception escaped to here, we better enable stdin. | |
355 | Otherwise, any command that calls async_disable_stdin, and | |
356 | then throws, will leave stdin inoperable. */ | |
357 | async_enable_stdin (); | |
358 | return 0; | |
359 | } | |
360 | return 1; | |
361 | } | |
362 | ||
9d1e69a2 PA |
363 | /* Type of the command callback passed to catch_command_errors. */ |
364 | ||
365 | typedef void (catch_command_errors_ftype) (char *, int); | |
366 | ||
367 | /* Wrap calls to commands run before the event loop is started. */ | |
368 | ||
369 | static int | |
370 | catch_command_errors (catch_command_errors_ftype *command, | |
97c18565 | 371 | char *arg, int from_tty) |
9d1e69a2 | 372 | { |
492d29ea | 373 | TRY |
9d1e69a2 | 374 | { |
3b12939d | 375 | int was_sync = current_ui->prompt_state == PROMPT_BLOCKED; |
98880d46 | 376 | |
9d1e69a2 | 377 | command (arg, from_tty); |
98880d46 PA |
378 | |
379 | maybe_wait_sync_command_done (was_sync); | |
9d1e69a2 | 380 | } |
492d29ea PA |
381 | CATCH (e, RETURN_MASK_ALL) |
382 | { | |
383 | return handle_command_errors (e); | |
384 | } | |
385 | END_CATCH | |
386 | ||
387 | return 1; | |
9d1e69a2 PA |
388 | } |
389 | ||
013af3fc TT |
390 | /* Type of the command callback passed to the const |
391 | catch_command_errors. */ | |
9d1e69a2 PA |
392 | |
393 | typedef void (catch_command_errors_const_ftype) (const char *, int); | |
394 | ||
013af3fc | 395 | /* Const-correct catch_command_errors. */ |
9d1e69a2 PA |
396 | |
397 | static int | |
013af3fc TT |
398 | catch_command_errors (catch_command_errors_const_ftype command, |
399 | const char *arg, int from_tty) | |
9d1e69a2 | 400 | { |
492d29ea | 401 | TRY |
9d1e69a2 | 402 | { |
3b12939d | 403 | int was_sync = current_ui->prompt_state == PROMPT_BLOCKED; |
98880d46 | 404 | |
9d1e69a2 | 405 | command (arg, from_tty); |
98880d46 PA |
406 | |
407 | maybe_wait_sync_command_done (was_sync); | |
9d1e69a2 | 408 | } |
492d29ea PA |
409 | CATCH (e, RETURN_MASK_ALL) |
410 | { | |
411 | return handle_command_errors (e); | |
412 | } | |
413 | END_CATCH | |
414 | ||
415 | return 1; | |
9d1e69a2 PA |
416 | } |
417 | ||
ecf45d2c SL |
418 | /* Adapter for symbol_file_add_main that translates 'from_tty' to a |
419 | symfile_add_flags. */ | |
420 | ||
421 | static void | |
422 | symbol_file_add_main_adapter (const char *arg, int from_tty) | |
423 | { | |
424 | symfile_add_flags add_flags = 0; | |
425 | ||
426 | if (from_tty) | |
427 | add_flags |= SYMFILE_VERBOSE; | |
428 | ||
429 | symbol_file_add_main (arg, add_flags); | |
430 | } | |
431 | ||
52059ffd TT |
432 | /* Type of this option. */ |
433 | enum cmdarg_kind | |
434 | { | |
435 | /* Option type -x. */ | |
436 | CMDARG_FILE, | |
26743505 | 437 | |
52059ffd TT |
438 | /* Option type -ex. */ |
439 | CMDARG_COMMAND, | |
8320cc4f | 440 | |
52059ffd TT |
441 | /* Option type -ix. */ |
442 | CMDARG_INIT_FILE, | |
8320cc4f | 443 | |
52059ffd TT |
444 | /* Option type -iex. */ |
445 | CMDARG_INIT_COMMAND | |
446 | }; | |
447 | ||
448 | /* Arguments of --command option and its counterpart. */ | |
7a63494a PA |
449 | struct cmdarg |
450 | { | |
451 | cmdarg (cmdarg_kind type_, char *string_) | |
452 | : type (type_), string (string_) | |
453 | {} | |
454 | ||
52059ffd TT |
455 | /* Type of this option. */ |
456 | enum cmdarg_kind type; | |
26743505 JK |
457 | |
458 | /* Value of this option - filename or the GDB command itself. String memory | |
459 | is not owned by this structure despite it is 'const'. */ | |
460 | char *string; | |
f60ee22e | 461 | }; |
26743505 | 462 | |
1e3b796d TT |
463 | static void |
464 | captured_main_1 (struct captured_main_args *context) | |
11cf8741 | 465 | { |
11cf8741 JM |
466 | int argc = context->argc; |
467 | char **argv = context->argv; | |
1e3b796d | 468 | |
c906108c | 469 | static int quiet = 0; |
552c04a7 | 470 | static int set_args = 0; |
07540c15 | 471 | static int inhibit_home_gdbinit = 0; |
c906108c SS |
472 | |
473 | /* Pointers to various arguments from command line. */ | |
474 | char *symarg = NULL; | |
475 | char *execarg = NULL; | |
a4d9b460 | 476 | char *pidarg = NULL; |
c906108c | 477 | char *corearg = NULL; |
a4d9b460 | 478 | char *pid_or_core_arg = NULL; |
c906108c SS |
479 | char *cdarg = NULL; |
480 | char *ttyarg = NULL; | |
481 | ||
371d5dec MS |
482 | /* These are static so that we can take their address in an |
483 | initializer. */ | |
c906108c SS |
484 | static int print_help; |
485 | static int print_version; | |
6eaaf48b | 486 | static int print_configuration; |
c906108c SS |
487 | |
488 | /* Pointers to all arguments of --command option. */ | |
f60ee22e | 489 | std::vector<struct cmdarg> cmdarg_vec; |
c906108c | 490 | |
f60ee22e TT |
491 | /* All arguments of --directory option. */ |
492 | std::vector<char *> dirarg; | |
c5aa993b | 493 | |
16e7150e | 494 | /* gdb init files. */ |
50dd9793 PA |
495 | const char *system_gdbinit; |
496 | const char *home_gdbinit; | |
497 | const char *local_gdbinit; | |
c906108c | 498 | |
52f0bd74 | 499 | int i; |
88a1906b | 500 | int save_auto_load; |
7f6130ff | 501 | struct objfile *objfile; |
c906108c | 502 | |
e565b837 | 503 | #ifdef HAVE_SBRK |
1e3b796d | 504 | /* Set this before constructing scoped_command_stats. */ |
e565b837 DE |
505 | lim_at_start = (char *) sbrk (0); |
506 | #endif | |
507 | ||
1e3b796d | 508 | scoped_command_stats stat_reporter (false); |
c906108c | 509 | |
0fbb3da7 TT |
510 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) |
511 | setlocale (LC_MESSAGES, ""); | |
512 | #endif | |
513 | #if defined (HAVE_SETLOCALE) | |
514 | setlocale (LC_CTYPE, ""); | |
515 | #endif | |
66797541 | 516 | #ifdef ENABLE_NLS |
0fbb3da7 TT |
517 | bindtextdomain (PACKAGE, LOCALEDIR); |
518 | textdomain (PACKAGE); | |
66797541 | 519 | #endif |
0fbb3da7 | 520 | |
5484b13a | 521 | bfd_init (); |
614c279d | 522 | notice_open_fds (); |
f348d89a | 523 | save_original_signals_state (); |
5484b13a | 524 | |
2669cade | 525 | saved_command_line = (char *) xstrdup (""); |
694ec099 | 526 | |
ffa4ac95 YQ |
527 | #ifdef __MINGW32__ |
528 | /* Ensure stderr is unbuffered. A Cygwin pty or pipe is implemented | |
529 | as a Windows pipe, and Windows buffers on pipes. */ | |
530 | setvbuf (stderr, NULL, _IONBF, BUFSIZ); | |
531 | #endif | |
532 | ||
895b8f30 | 533 | main_ui = new ui (stdin, stdout, stderr); |
98d9f24e | 534 | current_ui = main_ui; |
ffa4ac95 | 535 | |
449092f6 CV |
536 | gdb_stdtargerr = gdb_stderr; /* for moment */ |
537 | gdb_stdtargin = gdb_stdin; /* for moment */ | |
c906108c | 538 | |
b5981e5a EZ |
539 | #ifdef __MINGW32__ |
540 | /* On Windows, argv[0] is not necessarily set to absolute form when | |
541 | GDB is found along PATH, without which relocation doesn't work. */ | |
542 | gdb_program_name = windows_get_absolute_argv0 (argv[0]); | |
543 | #else | |
16e7150e | 544 | gdb_program_name = xstrdup (argv[0]); |
b5981e5a | 545 | #endif |
16e7150e | 546 | |
075c7033 | 547 | /* Prefix warning messages with the command name. */ |
69bbf465 PA |
548 | gdb::unique_xmalloc_ptr<char> tmp_warn_preprint |
549 | (xstrprintf ("%s: warning: ", gdb_program_name)); | |
550 | warning_pre_print = tmp_warn_preprint.get (); | |
075c7033 | 551 | |
43573013 SDJ |
552 | current_directory = getcwd (NULL, 0); |
553 | if (current_directory == NULL) | |
075c7033 GB |
554 | perror_warning_with_name (_("error finding working directory")); |
555 | ||
030292b7 | 556 | /* Set the sysroot path. */ |
478aac75 DE |
557 | gdb_sysroot = relocate_gdb_directory (TARGET_SYSTEM_ROOT, |
558 | TARGET_SYSTEM_ROOT_RELOCATABLE); | |
030292b7 | 559 | |
fed040c6 GB |
560 | if (gdb_sysroot == NULL || *gdb_sysroot == '\0') |
561 | { | |
562 | xfree (gdb_sysroot); | |
563 | gdb_sysroot = xstrdup (TARGET_SYSROOT_PREFIX); | |
564 | } | |
565 | ||
478aac75 DE |
566 | debug_file_directory = relocate_gdb_directory (DEBUGDIR, |
567 | DEBUGDIR_RELOCATABLE); | |
030292b7 | 568 | |
478aac75 DE |
569 | gdb_datadir = relocate_gdb_directory (GDB_DATADIR, |
570 | GDB_DATADIR_RELOCATABLE); | |
aa28a74e | 571 | |
0c4a4063 | 572 | #ifdef WITH_PYTHON_PATH |
e6040cbd MS |
573 | { |
574 | /* For later use in helping Python find itself. */ | |
b36cec19 | 575 | char *tmp = concat (WITH_PYTHON_PATH, SLASH_STRING, "lib", (char *) NULL); |
e6040cbd | 576 | |
478aac75 | 577 | python_libdir = relocate_gdb_directory (tmp, PYTHON_PATH_RELOCATABLE); |
e6040cbd MS |
578 | xfree (tmp); |
579 | } | |
0c4a4063 DE |
580 | #endif |
581 | ||
29b0e8a2 JM |
582 | #ifdef RELOC_SRCDIR |
583 | add_substitute_path_rule (RELOC_SRCDIR, | |
b5981e5a | 584 | make_relative_prefix (gdb_program_name, BINDIR, |
29b0e8a2 JM |
585 | RELOC_SRCDIR)); |
586 | #endif | |
587 | ||
4389a95a | 588 | /* There will always be an interpreter. Either the one passed into |
e46e5ccd KS |
589 | this captured main, or one specified by the user at start up, or |
590 | the console. Initialize the interpreter to the one requested by | |
591 | the application. */ | |
11bf1490 | 592 | interpreter_p = xstrdup (context->interpreter_p); |
4389a95a | 593 | |
c906108c SS |
594 | /* Parse arguments and options. */ |
595 | { | |
596 | int c; | |
597 | /* When var field is 0, use flag field to record the equivalent | |
598 | short option (or arbitrary numbers starting at 10 for those | |
599 | with no equivalent). */ | |
49c7e338 AC |
600 | enum { |
601 | OPT_SE = 10, | |
602 | OPT_CD, | |
603 | OPT_ANNOTATE, | |
604 | OPT_STATISTICS, | |
42fa7c0f AC |
605 | OPT_TUI, |
606 | OPT_NOWINDOWS, | |
8320cc4f JK |
607 | OPT_WINDOWS, |
608 | OPT_IX, | |
609 | OPT_IEX | |
49c7e338 | 610 | }; |
c906108c | 611 | static struct option long_options[] = |
c5aa993b | 612 | { |
49c7e338 | 613 | {"tui", no_argument, 0, OPT_TUI}, |
c5aa993b JM |
614 | {"dbx", no_argument, &dbx_commands, 1}, |
615 | {"readnow", no_argument, &readnow_symbol_files, 1}, | |
616 | {"r", no_argument, &readnow_symbol_files, 1}, | |
c5aa993b JM |
617 | {"quiet", no_argument, &quiet, 1}, |
618 | {"q", no_argument, &quiet, 1}, | |
619 | {"silent", no_argument, &quiet, 1}, | |
07540c15 | 620 | {"nh", no_argument, &inhibit_home_gdbinit, 1}, |
c5aa993b JM |
621 | {"nx", no_argument, &inhibit_gdbinit, 1}, |
622 | {"n", no_argument, &inhibit_gdbinit, 1}, | |
1a088d06 | 623 | {"batch-silent", no_argument, 0, 'B'}, |
7c953934 | 624 | {"batch", no_argument, &batch_flag, 1}, |
c5aa993b | 625 | |
371d5dec MS |
626 | /* This is a synonym for "--annotate=1". --annotate is now |
627 | preferred, but keep this here for a long time because people | |
628 | will be running emacses which use --fullname. */ | |
c5aa993b JM |
629 | {"fullname", no_argument, 0, 'f'}, |
630 | {"f", no_argument, 0, 'f'}, | |
631 | ||
49c7e338 | 632 | {"annotate", required_argument, 0, OPT_ANNOTATE}, |
c5aa993b | 633 | {"help", no_argument, &print_help, 1}, |
49c7e338 | 634 | {"se", required_argument, 0, OPT_SE}, |
c5aa993b JM |
635 | {"symbols", required_argument, 0, 's'}, |
636 | {"s", required_argument, 0, 's'}, | |
637 | {"exec", required_argument, 0, 'e'}, | |
638 | {"e", required_argument, 0, 'e'}, | |
639 | {"core", required_argument, 0, 'c'}, | |
640 | {"c", required_argument, 0, 'c'}, | |
00546b04 MS |
641 | {"pid", required_argument, 0, 'p'}, |
642 | {"p", required_argument, 0, 'p'}, | |
c5aa993b | 643 | {"command", required_argument, 0, 'x'}, |
8a5a3c82 | 644 | {"eval-command", required_argument, 0, 'X'}, |
c5aa993b | 645 | {"version", no_argument, &print_version, 1}, |
6eaaf48b | 646 | {"configuration", no_argument, &print_configuration, 1}, |
c5aa993b | 647 | {"x", required_argument, 0, 'x'}, |
8a5a3c82 | 648 | {"ex", required_argument, 0, 'X'}, |
8320cc4f JK |
649 | {"init-command", required_argument, 0, OPT_IX}, |
650 | {"init-eval-command", required_argument, 0, OPT_IEX}, | |
651 | {"ix", required_argument, 0, OPT_IX}, | |
652 | {"iex", required_argument, 0, OPT_IEX}, | |
3fc11d3e JM |
653 | #ifdef GDBTK |
654 | {"tclcommand", required_argument, 0, 'z'}, | |
655 | {"enable-external-editor", no_argument, 0, 'y'}, | |
656 | {"editor-command", required_argument, 0, 'w'}, | |
657 | #endif | |
8b93c638 JM |
658 | {"ui", required_argument, 0, 'i'}, |
659 | {"interpreter", required_argument, 0, 'i'}, | |
660 | {"i", required_argument, 0, 'i'}, | |
c5aa993b | 661 | {"directory", required_argument, 0, 'd'}, |
c4093a6a | 662 | {"d", required_argument, 0, 'd'}, |
aae1c79a | 663 | {"data-directory", required_argument, 0, 'D'}, |
8d551b02 | 664 | {"D", required_argument, 0, 'D'}, |
49c7e338 | 665 | {"cd", required_argument, 0, OPT_CD}, |
c5aa993b JM |
666 | {"tty", required_argument, 0, 't'}, |
667 | {"baud", required_argument, 0, 'b'}, | |
668 | {"b", required_argument, 0, 'b'}, | |
42fa7c0f AC |
669 | {"nw", no_argument, NULL, OPT_NOWINDOWS}, |
670 | {"nowindows", no_argument, NULL, OPT_NOWINDOWS}, | |
671 | {"w", no_argument, NULL, OPT_WINDOWS}, | |
672 | {"windows", no_argument, NULL, OPT_WINDOWS}, | |
49c7e338 | 673 | {"statistics", no_argument, 0, OPT_STATISTICS}, |
c5aa993b | 674 | {"write", no_argument, &write_files, 1}, |
552c04a7 | 675 | {"args", no_argument, &set_args, 1}, |
39c76ca3 | 676 | {"l", required_argument, 0, 'l'}, |
4b0ad762 | 677 | {"return-child-result", no_argument, &return_child_result, 1}, |
c5aa993b JM |
678 | {0, no_argument, 0, 0} |
679 | }; | |
c906108c SS |
680 | |
681 | while (1) | |
682 | { | |
683 | int option_index; | |
684 | ||
685 | c = getopt_long_only (argc, argv, "", | |
686 | long_options, &option_index); | |
552c04a7 | 687 | if (c == EOF || set_args) |
c906108c SS |
688 | break; |
689 | ||
690 | /* Long option that takes an argument. */ | |
691 | if (c == 0 && long_options[option_index].flag == 0) | |
692 | c = long_options[option_index].val; | |
693 | ||
694 | switch (c) | |
695 | { | |
696 | case 0: | |
697 | /* Long option that just sets a flag. */ | |
698 | break; | |
49c7e338 | 699 | case OPT_SE: |
c906108c SS |
700 | symarg = optarg; |
701 | execarg = optarg; | |
702 | break; | |
49c7e338 | 703 | case OPT_CD: |
c906108c SS |
704 | cdarg = optarg; |
705 | break; | |
49c7e338 | 706 | case OPT_ANNOTATE: |
c906108c SS |
707 | /* FIXME: what if the syntax is wrong (e.g. not digits)? */ |
708 | annotation_level = atoi (optarg); | |
709 | break; | |
49c7e338 | 710 | case OPT_STATISTICS: |
c906108c | 711 | /* Enable the display of both time and space usage. */ |
bd712aed DE |
712 | set_per_command_time (1); |
713 | set_per_command_space (1); | |
c906108c | 714 | break; |
49c7e338 | 715 | case OPT_TUI: |
021e7609 | 716 | /* --tui is equivalent to -i=tui. */ |
b0da54f1 | 717 | #ifdef TUI |
021e7609 | 718 | xfree (interpreter_p); |
cc4349ed | 719 | interpreter_p = xstrdup (INTERP_TUI); |
b0da54f1 | 720 | #else |
91b35fd0 | 721 | error (_("%s: TUI mode is not supported"), gdb_program_name); |
b0da54f1 | 722 | #endif |
021e7609 | 723 | break; |
42fa7c0f AC |
724 | case OPT_WINDOWS: |
725 | /* FIXME: cagney/2003-03-01: Not sure if this option is | |
726 | actually useful, and if it is, what it should do. */ | |
cc4349ed AS |
727 | #ifdef GDBTK |
728 | /* --windows is equivalent to -i=insight. */ | |
729 | xfree (interpreter_p); | |
730 | interpreter_p = xstrdup (INTERP_INSIGHT); | |
731 | #endif | |
42fa7c0f AC |
732 | break; |
733 | case OPT_NOWINDOWS: | |
734 | /* -nw is equivalent to -i=console. */ | |
735 | xfree (interpreter_p); | |
736 | interpreter_p = xstrdup (INTERP_CONSOLE); | |
42fa7c0f | 737 | break; |
c906108c SS |
738 | case 'f': |
739 | annotation_level = 1; | |
c906108c SS |
740 | break; |
741 | case 's': | |
742 | symarg = optarg; | |
743 | break; | |
744 | case 'e': | |
745 | execarg = optarg; | |
746 | break; | |
747 | case 'c': | |
748 | corearg = optarg; | |
749 | break; | |
00546b04 | 750 | case 'p': |
a4d9b460 | 751 | pidarg = optarg; |
00546b04 | 752 | break; |
c906108c | 753 | case 'x': |
7a63494a | 754 | cmdarg_vec.emplace_back (CMDARG_FILE, optarg); |
8a5a3c82 AS |
755 | break; |
756 | case 'X': | |
7a63494a | 757 | cmdarg_vec.emplace_back (CMDARG_COMMAND, optarg); |
26743505 | 758 | break; |
8320cc4f | 759 | case OPT_IX: |
7a63494a | 760 | cmdarg_vec.emplace_back (CMDARG_INIT_FILE, optarg); |
8320cc4f JK |
761 | break; |
762 | case OPT_IEX: | |
7a63494a | 763 | cmdarg_vec.emplace_back (CMDARG_INIT_COMMAND, optarg); |
c906108c | 764 | break; |
1a088d06 | 765 | case 'B': |
7c953934 | 766 | batch_flag = batch_silent = 1; |
d7e74731 | 767 | gdb_stdout = new null_file (); |
1a088d06 | 768 | break; |
aae1c79a | 769 | case 'D': |
8d551b02 | 770 | if (optarg[0] == '\0') |
91b35fd0 GB |
771 | error (_("%s: empty path for `--data-directory'"), |
772 | gdb_program_name); | |
8d551b02 | 773 | set_gdb_data_directory (optarg); |
e64e0392 | 774 | gdb_datadir_provided = 1; |
aae1c79a | 775 | break; |
3fc11d3e JM |
776 | #ifdef GDBTK |
777 | case 'z': | |
778 | { | |
371d5dec MS |
779 | extern int gdbtk_test (char *); |
780 | ||
3fc11d3e | 781 | if (!gdbtk_test (optarg)) |
91b35fd0 GB |
782 | error (_("%s: unable to load tclcommand file \"%s\""), |
783 | gdb_program_name, optarg); | |
3fc11d3e JM |
784 | break; |
785 | } | |
786 | case 'y': | |
78f49586 TT |
787 | /* Backwards compatibility only. */ |
788 | break; | |
3fc11d3e JM |
789 | case 'w': |
790 | { | |
3a9b40b6 JK |
791 | /* Set the external editor commands when gdb is farming out files |
792 | to be edited by another program. */ | |
793 | extern char *external_editor_command; | |
794 | ||
3fc11d3e JM |
795 | external_editor_command = xstrdup (optarg); |
796 | break; | |
797 | } | |
798 | #endif /* GDBTK */ | |
fb40c209 | 799 | case 'i': |
4389a95a AC |
800 | xfree (interpreter_p); |
801 | interpreter_p = xstrdup (optarg); | |
fb40c209 | 802 | break; |
c906108c | 803 | case 'd': |
f60ee22e | 804 | dirarg.push_back (optarg); |
c906108c SS |
805 | break; |
806 | case 't': | |
807 | ttyarg = optarg; | |
808 | break; | |
809 | case 'q': | |
810 | quiet = 1; | |
811 | break; | |
812 | case 'b': | |
813 | { | |
814 | int i; | |
815 | char *p; | |
816 | ||
817 | i = strtol (optarg, &p, 0); | |
818 | if (i == 0 && p == optarg) | |
075c7033 GB |
819 | warning (_("could not set baud rate to `%s'."), |
820 | optarg); | |
c906108c SS |
821 | else |
822 | baud_rate = i; | |
823 | } | |
046ca86a | 824 | break; |
c906108c SS |
825 | case 'l': |
826 | { | |
827 | int i; | |
828 | char *p; | |
829 | ||
830 | i = strtol (optarg, &p, 0); | |
831 | if (i == 0 && p == optarg) | |
075c7033 GB |
832 | warning (_("could not set timeout limit to `%s'."), |
833 | optarg); | |
c906108c SS |
834 | else |
835 | remote_timeout = i; | |
836 | } | |
837 | break; | |
838 | ||
c906108c | 839 | case '?': |
91b35fd0 GB |
840 | error (_("Use `%s --help' for a complete list of options."), |
841 | gdb_program_name); | |
c906108c SS |
842 | } |
843 | } | |
844 | ||
7c953934 | 845 | if (batch_flag) |
c906108c SS |
846 | quiet = 1; |
847 | } | |
848 | ||
992c7d70 GB |
849 | /* Try to set up an alternate signal stack for SIGSEGV handlers. */ |
850 | setup_alternate_signal_stack (); | |
851 | ||
f218b647 | 852 | /* Initialize all files. */ |
b5981e5a | 853 | gdb_init (gdb_program_name); |
c906108c | 854 | |
371d5dec MS |
855 | /* Now that gdb_init has created the initial inferior, we're in |
856 | position to set args for that inferior. */ | |
3f81c18a VP |
857 | if (set_args) |
858 | { | |
859 | /* The remaining options are the command-line options for the | |
860 | inferior. The first one is the sym/exec file, and the rest | |
861 | are arguments. */ | |
862 | if (optind >= argc) | |
91b35fd0 GB |
863 | error (_("%s: `--args' specified but no program specified"), |
864 | gdb_program_name); | |
865 | ||
3f81c18a VP |
866 | symarg = argv[optind]; |
867 | execarg = argv[optind]; | |
868 | ++optind; | |
869 | set_inferior_args_vector (argc - optind, &argv[optind]); | |
870 | } | |
871 | else | |
872 | { | |
873 | /* OK, that's all the options. */ | |
874 | ||
875 | /* The first argument, if specified, is the name of the | |
876 | executable. */ | |
877 | if (optind < argc) | |
878 | { | |
879 | symarg = argv[optind]; | |
880 | execarg = argv[optind]; | |
881 | optind++; | |
882 | } | |
883 | ||
884 | /* If the user hasn't already specified a PID or the name of a | |
885 | core file, then a second optional argument is allowed. If | |
886 | present, this argument should be interpreted as either a | |
887 | PID or a core file, whichever works. */ | |
888 | if (pidarg == NULL && corearg == NULL && optind < argc) | |
889 | { | |
890 | pid_or_core_arg = argv[optind]; | |
891 | optind++; | |
892 | } | |
893 | ||
894 | /* Any argument left on the command line is unexpected and | |
895 | will be ignored. Inform the user. */ | |
896 | if (optind < argc) | |
3e43a32a MS |
897 | fprintf_unfiltered (gdb_stderr, |
898 | _("Excess command line " | |
899 | "arguments ignored. (%s%s)\n"), | |
3f81c18a VP |
900 | argv[optind], |
901 | (optind == argc - 1) ? "" : " ..."); | |
902 | } | |
903 | ||
025bb325 | 904 | /* Lookup gdbinit files. Note that the gdbinit file name may be |
371d5dec MS |
905 | overriden during file initialization, so get_init_files should be |
906 | called after gdb_init. */ | |
57a46001 JG |
907 | get_init_files (&system_gdbinit, &home_gdbinit, &local_gdbinit); |
908 | ||
c906108c | 909 | /* Do these (and anything which might call wrap_here or *_filtered) |
4389a95a AC |
910 | after initialize_all_files() but before the interpreter has been |
911 | installed. Otherwize the help/version messages will be eaten by | |
912 | the interpreter's output handler. */ | |
913 | ||
c906108c SS |
914 | if (print_version) |
915 | { | |
916 | print_gdb_version (gdb_stdout); | |
917 | wrap_here (""); | |
918 | printf_filtered ("\n"); | |
919 | exit (0); | |
920 | } | |
921 | ||
922 | if (print_help) | |
923 | { | |
924 | print_gdb_help (gdb_stdout); | |
925 | fputs_unfiltered ("\n", gdb_stdout); | |
926 | exit (0); | |
927 | } | |
928 | ||
6eaaf48b EZ |
929 | if (print_configuration) |
930 | { | |
931 | print_gdb_configuration (gdb_stdout); | |
932 | wrap_here (""); | |
933 | printf_filtered ("\n"); | |
934 | exit (0); | |
935 | } | |
936 | ||
4389a95a AC |
937 | /* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets |
938 | GDB retain the old MI1 interpreter startup behavior. Output the | |
939 | copyright message before the interpreter is installed. That way | |
940 | it isn't encapsulated in MI output. */ | |
941 | if (!quiet && strcmp (interpreter_p, INTERP_MI1) == 0) | |
942 | { | |
371d5dec MS |
943 | /* Print all the junk at the top, with trailing "..." if we are |
944 | about to read a symbol file (possibly slowly). */ | |
4389a95a AC |
945 | print_gdb_version (gdb_stdout); |
946 | if (symarg) | |
947 | printf_filtered (".."); | |
948 | wrap_here (""); | |
e896d70e | 949 | printf_filtered ("\n"); |
371d5dec MS |
950 | gdb_flush (gdb_stdout); /* Force to screen during slow |
951 | operations. */ | |
4389a95a AC |
952 | } |
953 | ||
4389a95a | 954 | /* Install the default UI. All the interpreters should have had a |
371d5dec | 955 | look at things by now. Initialize the default interpreter. */ |
60eb5395 | 956 | set_top_level_interpreter (interpreter_p); |
4389a95a AC |
957 | |
958 | /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets | |
959 | GDB retain the old MI1 interpreter startup behavior. Output the | |
960 | copyright message after the interpreter is installed when it is | |
961 | any sane interpreter. */ | |
962 | if (!quiet && !current_interp_named_p (INTERP_MI1)) | |
c906108c | 963 | { |
371d5dec MS |
964 | /* Print all the junk at the top, with trailing "..." if we are |
965 | about to read a symbol file (possibly slowly). */ | |
c906108c SS |
966 | print_gdb_version (gdb_stdout); |
967 | if (symarg) | |
968 | printf_filtered (".."); | |
c5aa993b | 969 | wrap_here (""); |
e896d70e | 970 | printf_filtered ("\n"); |
371d5dec MS |
971 | gdb_flush (gdb_stdout); /* Force to screen during slow |
972 | operations. */ | |
c906108c SS |
973 | } |
974 | ||
e896d70e | 975 | /* Set off error and warning messages with a blank line. */ |
69bbf465 | 976 | tmp_warn_preprint.reset (); |
defc6f8c | 977 | warning_pre_print = _("\nwarning: "); |
c906108c | 978 | |
16e7150e JG |
979 | /* Read and execute the system-wide gdbinit file, if it exists. |
980 | This is done *before* all the command line arguments are | |
981 | processed; it sets global parameters, which are independent of | |
982 | what file you are debugging or what directory you are in. */ | |
983 | if (system_gdbinit && !inhibit_gdbinit) | |
013af3fc | 984 | catch_command_errors (source_script, system_gdbinit, 0); |
16e7150e | 985 | |
c906108c SS |
986 | /* Read and execute $HOME/.gdbinit file, if it exists. This is done |
987 | *before* all the command line arguments are processed; it sets | |
988 | global parameters, which are independent of what file you are | |
989 | debugging or what directory you are in. */ | |
c906108c | 990 | |
07540c15 | 991 | if (home_gdbinit && !inhibit_gdbinit && !inhibit_home_gdbinit) |
013af3fc | 992 | catch_command_errors (source_script, home_gdbinit, 0); |
c906108c | 993 | |
2d7b58e8 | 994 | /* Process '-ix' and '-iex' options early. */ |
f60ee22e | 995 | for (i = 0; i < cmdarg_vec.size (); i++) |
2d7b58e8 | 996 | { |
f60ee22e TT |
997 | const struct cmdarg &cmdarg_p = cmdarg_vec[i]; |
998 | ||
999 | switch (cmdarg_p.type) | |
1000 | { | |
1001 | case CMDARG_INIT_FILE: | |
013af3fc TT |
1002 | catch_command_errors (source_script, cmdarg_p.string, |
1003 | !batch_flag); | |
f60ee22e TT |
1004 | break; |
1005 | case CMDARG_INIT_COMMAND: | |
1006 | catch_command_errors (execute_command, cmdarg_p.string, | |
1007 | !batch_flag); | |
1008 | break; | |
1009 | } | |
2d7b58e8 JK |
1010 | } |
1011 | ||
c906108c SS |
1012 | /* Now perform all the actions indicated by the arguments. */ |
1013 | if (cdarg != NULL) | |
1014 | { | |
97c18565 | 1015 | catch_command_errors (cd_command, cdarg, 0); |
c906108c | 1016 | } |
c906108c | 1017 | |
f60ee22e | 1018 | for (i = 0; i < dirarg.size (); i++) |
97c18565 | 1019 | catch_command_errors (directory_switch, dirarg[i], 0); |
c906108c | 1020 | |
88a1906b | 1021 | /* Skip auto-loading section-specified scripts until we've sourced |
371d5dec MS |
1022 | local_gdbinit (which is often used to augment the source search |
1023 | path). */ | |
bf88dd68 JK |
1024 | save_auto_load = global_auto_load; |
1025 | global_auto_load = 0; | |
88a1906b | 1026 | |
c906108c SS |
1027 | if (execarg != NULL |
1028 | && symarg != NULL | |
5cb316ef | 1029 | && strcmp (execarg, symarg) == 0) |
c906108c | 1030 | { |
11cf8741 JM |
1031 | /* The exec file and the symbol-file are the same. If we can't |
1032 | open it, better only print one error message. | |
371d5dec | 1033 | catch_command_errors returns non-zero on success! */ |
013af3fc TT |
1034 | if (catch_command_errors (exec_file_attach, execarg, |
1035 | !batch_flag)) | |
1036 | catch_command_errors (symbol_file_add_main_adapter, symarg, | |
1037 | !batch_flag); | |
c906108c SS |
1038 | } |
1039 | else | |
1040 | { | |
1041 | if (execarg != NULL) | |
013af3fc TT |
1042 | catch_command_errors (exec_file_attach, execarg, |
1043 | !batch_flag); | |
c906108c | 1044 | if (symarg != NULL) |
013af3fc TT |
1045 | catch_command_errors (symbol_file_add_main_adapter, symarg, |
1046 | !batch_flag); | |
c906108c | 1047 | } |
c906108c | 1048 | |
a4d9b460 | 1049 | if (corearg && pidarg) |
3e43a32a MS |
1050 | error (_("Can't attach to process and specify " |
1051 | "a core file at the same time.")); | |
a4d9b460 | 1052 | |
c906108c | 1053 | if (corearg != NULL) |
97c18565 | 1054 | catch_command_errors (core_file_command, corearg, !batch_flag); |
a4d9b460 | 1055 | else if (pidarg != NULL) |
97c18565 | 1056 | catch_command_errors (attach_command, pidarg, !batch_flag); |
a4d9b460 | 1057 | else if (pid_or_core_arg) |
c906108c | 1058 | { |
a4d9b460 PA |
1059 | /* The user specified 'gdb program pid' or gdb program core'. |
1060 | If pid_or_core_arg's first character is a digit, try attach | |
1061 | first and then corefile. Otherwise try just corefile. */ | |
00546b04 | 1062 | |
a4d9b460 | 1063 | if (isdigit (pid_or_core_arg[0])) |
11cf8741 | 1064 | { |
a4d9b460 | 1065 | if (catch_command_errors (attach_command, pid_or_core_arg, |
97c18565 | 1066 | !batch_flag) == 0) |
a4d9b460 | 1067 | catch_command_errors (core_file_command, pid_or_core_arg, |
97c18565 | 1068 | !batch_flag); |
11cf8741 | 1069 | } |
a4d9b460 PA |
1070 | else /* Can't be a pid, better be a corefile. */ |
1071 | catch_command_errors (core_file_command, pid_or_core_arg, | |
97c18565 | 1072 | !batch_flag); |
c906108c | 1073 | } |
c906108c SS |
1074 | |
1075 | if (ttyarg != NULL) | |
3f81c18a | 1076 | set_inferior_io_terminal (ttyarg); |
c906108c | 1077 | |
371d5dec | 1078 | /* Error messages should no longer be distinguished with extra output. */ |
defc6f8c | 1079 | warning_pre_print = _("warning: "); |
c906108c SS |
1080 | |
1081 | /* Read the .gdbinit file in the current directory, *if* it isn't | |
1082 | the same as the $HOME/.gdbinit file (it should exist, also). */ | |
bf88dd68 JK |
1083 | if (local_gdbinit) |
1084 | { | |
14278e1f TT |
1085 | auto_load_local_gdbinit_pathname |
1086 | = gdb_realpath (local_gdbinit).release (); | |
bf88dd68 | 1087 | |
bccbefd2 | 1088 | if (!inhibit_gdbinit && auto_load_local_gdbinit |
4dc84fd1 JK |
1089 | && file_is_auto_load_safe (local_gdbinit, |
1090 | _("auto-load: Loading .gdbinit " | |
1091 | "file \"%s\".\n"), | |
1092 | local_gdbinit)) | |
bf88dd68 JK |
1093 | { |
1094 | auto_load_local_gdbinit_loaded = 1; | |
1095 | ||
013af3fc | 1096 | catch_command_errors (source_script, local_gdbinit, 0); |
bf88dd68 JK |
1097 | } |
1098 | } | |
c906108c | 1099 | |
88a1906b DE |
1100 | /* Now that all .gdbinit's have been read and all -d options have been |
1101 | processed, we can read any scripts mentioned in SYMARG. | |
1102 | We wait until now because it is common to add to the source search | |
1103 | path in local_gdbinit. */ | |
bf88dd68 | 1104 | global_auto_load = save_auto_load; |
7f6130ff JK |
1105 | ALL_OBJFILES (objfile) |
1106 | load_auto_scripts_for_objfile (objfile); | |
88a1906b | 1107 | |
8320cc4f | 1108 | /* Process '-x' and '-ex' options. */ |
f60ee22e | 1109 | for (i = 0; i < cmdarg_vec.size (); i++) |
c906108c | 1110 | { |
f60ee22e TT |
1111 | const struct cmdarg &cmdarg_p = cmdarg_vec[i]; |
1112 | ||
1113 | switch (cmdarg_p.type) | |
1114 | { | |
1115 | case CMDARG_FILE: | |
013af3fc TT |
1116 | catch_command_errors (source_script, cmdarg_p.string, |
1117 | !batch_flag); | |
f60ee22e TT |
1118 | break; |
1119 | case CMDARG_COMMAND: | |
1120 | catch_command_errors (execute_command, cmdarg_p.string, | |
1121 | !batch_flag); | |
1122 | break; | |
1123 | } | |
c906108c | 1124 | } |
c906108c | 1125 | |
371d5dec MS |
1126 | /* Read in the old history after all the command files have been |
1127 | read. */ | |
c5aa993b | 1128 | init_history (); |
c906108c | 1129 | |
7c953934 | 1130 | if (batch_flag) |
c906108c SS |
1131 | { |
1132 | /* We have hit the end of the batch file. */ | |
4b0ad762 | 1133 | quit_force (NULL, 0); |
c906108c | 1134 | } |
1e3b796d TT |
1135 | } |
1136 | ||
1137 | static void | |
1138 | captured_main (void *data) | |
1139 | { | |
1140 | struct captured_main_args *context = (struct captured_main_args *) data; | |
1141 | ||
1142 | captured_main_1 (context); | |
c906108c | 1143 | |
11cf8741 JM |
1144 | /* NOTE: cagney/1999-11-07: There is probably no reason for not |
1145 | moving this loop and the code found in captured_command_loop() | |
1146 | into the command_loop() proper. The main thing holding back that | |
371d5dec | 1147 | change - SET_TOP_LEVEL() - has been eliminated. */ |
11cf8741 JM |
1148 | while (1) |
1149 | { | |
bf469271 PA |
1150 | TRY |
1151 | { | |
1152 | captured_command_loop (); | |
1153 | } | |
1154 | CATCH (ex, RETURN_MASK_ALL) | |
1155 | { | |
1156 | exception_print (gdb_stderr, ex); | |
1157 | } | |
1158 | END_CATCH | |
11cf8741 | 1159 | } |
11cf8741 JM |
1160 | /* No exit -- exit is through quit_command. */ |
1161 | } | |
c906108c | 1162 | |
11cf8741 | 1163 | int |
f15ab4a7 | 1164 | gdb_main (struct captured_main_args *args) |
11cf8741 | 1165 | { |
98d9f24e PA |
1166 | TRY |
1167 | { | |
1168 | captured_main (args); | |
1169 | } | |
1170 | CATCH (ex, RETURN_MASK_ALL) | |
1171 | { | |
1172 | exception_print (gdb_stderr, ex); | |
1173 | } | |
1174 | END_CATCH | |
1175 | ||
864dbc90 AC |
1176 | /* The only way to end up here is by an error (normal exit is |
1177 | handled by quit_force()), hence always return an error status. */ | |
1178 | return 1; | |
c906108c SS |
1179 | } |
1180 | ||
11cf8741 | 1181 | |
c906108c SS |
1182 | /* Don't use *_filtered for printing help. We don't want to prompt |
1183 | for continue no matter how small the screen or how much we're going | |
1184 | to print. */ | |
1185 | ||
1186 | static void | |
d9fcf2fb | 1187 | print_gdb_help (struct ui_file *stream) |
c906108c | 1188 | { |
50dd9793 PA |
1189 | const char *system_gdbinit; |
1190 | const char *home_gdbinit; | |
1191 | const char *local_gdbinit; | |
16e7150e JG |
1192 | |
1193 | get_init_files (&system_gdbinit, &home_gdbinit, &local_gdbinit); | |
1194 | ||
b187bec1 EZ |
1195 | /* Note: The options in the list below are only approximately sorted |
1196 | in the alphabetical order, so as to group closely related options | |
1197 | together. */ | |
defc6f8c | 1198 | fputs_unfiltered (_("\ |
c906108c | 1199 | This is the GNU debugger. Usage:\n\n\ |
552c04a7 TT |
1200 | gdb [options] [executable-file [core-file or process-id]]\n\ |
1201 | gdb [options] --args executable-file [inferior-arguments ...]\n\n\ | |
defc6f8c TT |
1202 | "), stream); |
1203 | fputs_unfiltered (_("\ | |
b187bec1 | 1204 | Selection of debuggee and its files:\n\n\ |
552c04a7 | 1205 | --args Arguments after executable-file are passed to inferior\n\ |
b187bec1 EZ |
1206 | --core=COREFILE Analyze the core dump COREFILE.\n\ |
1207 | --exec=EXECFILE Use EXECFILE as the executable.\n\ | |
1208 | --pid=PID Attach to running process PID.\n\ | |
1209 | --directory=DIR Search for source files in DIR.\n\ | |
1210 | --se=FILE Use FILE as symbol file and executable file.\n\ | |
1211 | --symbols=SYMFILE Read symbols from SYMFILE.\n\ | |
1212 | --readnow Fully read symbol files on first access.\n\ | |
1213 | --write Set writing into executable and core files.\n\n\ | |
defc6f8c TT |
1214 | "), stream); |
1215 | fputs_unfiltered (_("\ | |
b187bec1 | 1216 | Initial commands and command files:\n\n\ |
8a5a3c82 | 1217 | --command=FILE, -x Execute GDB commands from FILE.\n\ |
b187bec1 EZ |
1218 | --init-command=FILE, -ix\n\ |
1219 | Like -x but execute commands before loading inferior.\n\ | |
8a5a3c82 AS |
1220 | --eval-command=COMMAND, -ex\n\ |
1221 | Execute a single GDB command.\n\ | |
1222 | May be used multiple times and in conjunction\n\ | |
1223 | with --command.\n\ | |
b187bec1 EZ |
1224 | --init-eval-command=COMMAND, -iex\n\ |
1225 | Like -ex but before loading inferior.\n\ | |
1226 | --nh Do not read ~/.gdbinit.\n\ | |
1227 | --nx Do not read any .gdbinit files in any directory.\n\n\ | |
defc6f8c TT |
1228 | "), stream); |
1229 | fputs_unfiltered (_("\ | |
b187bec1 | 1230 | Output and user interface control:\n\n\ |
c906108c | 1231 | --fullname Output information used by emacs-GDB interface.\n\ |
8b93c638 JM |
1232 | --interpreter=INTERP\n\ |
1233 | Select a specific interpreter / user interface\n\ | |
c906108c | 1234 | --tty=TTY Use TTY for input/output by the program being debugged.\n\ |
b187bec1 EZ |
1235 | -w Use the GUI interface.\n\ |
1236 | --nw Do not use the GUI interface.\n\ | |
defc6f8c | 1237 | "), stream); |
c906108c | 1238 | #if defined(TUI) |
defc6f8c | 1239 | fputs_unfiltered (_("\ |
c906108c | 1240 | --tui Use a terminal user interface.\n\ |
defc6f8c | 1241 | "), stream); |
c906108c | 1242 | #endif |
481860b3 | 1243 | fputs_unfiltered (_("\ |
b187bec1 | 1244 | --dbx DBX compatibility mode.\n\ |
adcc0a31 | 1245 | -q, --quiet, --silent\n\ |
1246 | Do not print version number on startup.\n\n\ | |
b187bec1 EZ |
1247 | "), stream); |
1248 | fputs_unfiltered (_("\ | |
1249 | Operating modes:\n\n\ | |
1250 | --batch Exit after processing options.\n\ | |
1251 | --batch-silent Like --batch, but suppress all gdb stdout output.\n\ | |
1252 | --return-child-result\n\ | |
1253 | GDB exit code will be the child's exit code.\n\ | |
1254 | --configuration Print details about GDB configuration and then exit.\n\ | |
1255 | --help Print this message and then exit.\n\ | |
1256 | --version Print version information and then exit.\n\n\ | |
1257 | Remote debugging options:\n\n\ | |
1258 | -b BAUDRATE Set serial port baud rate used for remote debugging.\n\ | |
1259 | -l TIMEOUT Set timeout in seconds for remote debugging.\n\n\ | |
1260 | Other options:\n\n\ | |
1261 | --cd=DIR Change current directory to DIR.\n\ | |
8d551b02 DE |
1262 | --data-directory=DIR, -D\n\ |
1263 | Set GDB's data-directory to DIR.\n\ | |
defc6f8c | 1264 | "), stream); |
defc6f8c | 1265 | fputs_unfiltered (_("\n\ |
16e7150e JG |
1266 | At startup, GDB reads the following init files and executes their commands:\n\ |
1267 | "), stream); | |
1268 | if (system_gdbinit) | |
1269 | fprintf_unfiltered (stream, _("\ | |
1270 | * system-wide init file: %s\n\ | |
1271 | "), system_gdbinit); | |
1272 | if (home_gdbinit) | |
1273 | fprintf_unfiltered (stream, _("\ | |
1274 | * user-specific init file: %s\n\ | |
1275 | "), home_gdbinit); | |
1276 | if (local_gdbinit) | |
1277 | fprintf_unfiltered (stream, _("\ | |
bf88dd68 | 1278 | * local init file (see also 'set auto-load local-gdbinit'): ./%s\n\ |
16e7150e JG |
1279 | "), local_gdbinit); |
1280 | fputs_unfiltered (_("\n\ | |
c906108c SS |
1281 | For more information, type \"help\" from within GDB, or consult the\n\ |
1282 | GDB manual (available as on-line info or a printed manual).\n\ | |
defc6f8c | 1283 | "), stream); |
c16158bc JM |
1284 | if (REPORT_BUGS_TO[0] && stream == gdb_stdout) |
1285 | fprintf_unfiltered (stream, _("\ | |
1286 | Report bugs to \"%s\".\n\ | |
1287 | "), REPORT_BUGS_TO); | |
c906108c | 1288 | } |