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 | ||
013af3fc TT |
363 | /* Type of the command callback passed to the const |
364 | catch_command_errors. */ | |
9d1e69a2 PA |
365 | |
366 | typedef void (catch_command_errors_const_ftype) (const char *, int); | |
367 | ||
95a6b0a1 | 368 | /* Wrap calls to commands run before the event loop is started. */ |
9d1e69a2 PA |
369 | |
370 | static int | |
013af3fc TT |
371 | catch_command_errors (catch_command_errors_const_ftype command, |
372 | const char *arg, int from_tty) | |
9d1e69a2 | 373 | { |
492d29ea | 374 | TRY |
9d1e69a2 | 375 | { |
3b12939d | 376 | int was_sync = current_ui->prompt_state == PROMPT_BLOCKED; |
98880d46 | 377 | |
9d1e69a2 | 378 | command (arg, from_tty); |
98880d46 PA |
379 | |
380 | maybe_wait_sync_command_done (was_sync); | |
9d1e69a2 | 381 | } |
492d29ea PA |
382 | CATCH (e, RETURN_MASK_ALL) |
383 | { | |
384 | return handle_command_errors (e); | |
385 | } | |
386 | END_CATCH | |
387 | ||
388 | return 1; | |
9d1e69a2 PA |
389 | } |
390 | ||
ecf45d2c SL |
391 | /* Adapter for symbol_file_add_main that translates 'from_tty' to a |
392 | symfile_add_flags. */ | |
393 | ||
394 | static void | |
395 | symbol_file_add_main_adapter (const char *arg, int from_tty) | |
396 | { | |
397 | symfile_add_flags add_flags = 0; | |
398 | ||
399 | if (from_tty) | |
400 | add_flags |= SYMFILE_VERBOSE; | |
401 | ||
402 | symbol_file_add_main (arg, add_flags); | |
403 | } | |
404 | ||
52059ffd TT |
405 | /* Type of this option. */ |
406 | enum cmdarg_kind | |
407 | { | |
408 | /* Option type -x. */ | |
409 | CMDARG_FILE, | |
26743505 | 410 | |
52059ffd TT |
411 | /* Option type -ex. */ |
412 | CMDARG_COMMAND, | |
8320cc4f | 413 | |
52059ffd TT |
414 | /* Option type -ix. */ |
415 | CMDARG_INIT_FILE, | |
8320cc4f | 416 | |
52059ffd TT |
417 | /* Option type -iex. */ |
418 | CMDARG_INIT_COMMAND | |
419 | }; | |
420 | ||
421 | /* Arguments of --command option and its counterpart. */ | |
7a63494a PA |
422 | struct cmdarg |
423 | { | |
424 | cmdarg (cmdarg_kind type_, char *string_) | |
425 | : type (type_), string (string_) | |
426 | {} | |
427 | ||
52059ffd TT |
428 | /* Type of this option. */ |
429 | enum cmdarg_kind type; | |
26743505 JK |
430 | |
431 | /* Value of this option - filename or the GDB command itself. String memory | |
432 | is not owned by this structure despite it is 'const'. */ | |
433 | char *string; | |
f60ee22e | 434 | }; |
26743505 | 435 | |
1e3b796d TT |
436 | static void |
437 | captured_main_1 (struct captured_main_args *context) | |
11cf8741 | 438 | { |
11cf8741 JM |
439 | int argc = context->argc; |
440 | char **argv = context->argv; | |
1e3b796d | 441 | |
c906108c | 442 | static int quiet = 0; |
552c04a7 | 443 | static int set_args = 0; |
07540c15 | 444 | static int inhibit_home_gdbinit = 0; |
c906108c SS |
445 | |
446 | /* Pointers to various arguments from command line. */ | |
447 | char *symarg = NULL; | |
448 | char *execarg = NULL; | |
a4d9b460 | 449 | char *pidarg = NULL; |
c906108c | 450 | char *corearg = NULL; |
a4d9b460 | 451 | char *pid_or_core_arg = NULL; |
c906108c SS |
452 | char *cdarg = NULL; |
453 | char *ttyarg = NULL; | |
454 | ||
371d5dec MS |
455 | /* These are static so that we can take their address in an |
456 | initializer. */ | |
c906108c SS |
457 | static int print_help; |
458 | static int print_version; | |
6eaaf48b | 459 | static int print_configuration; |
c906108c SS |
460 | |
461 | /* Pointers to all arguments of --command option. */ | |
f60ee22e | 462 | std::vector<struct cmdarg> cmdarg_vec; |
c906108c | 463 | |
f60ee22e TT |
464 | /* All arguments of --directory option. */ |
465 | std::vector<char *> dirarg; | |
c5aa993b | 466 | |
16e7150e | 467 | /* gdb init files. */ |
50dd9793 PA |
468 | const char *system_gdbinit; |
469 | const char *home_gdbinit; | |
470 | const char *local_gdbinit; | |
c906108c | 471 | |
52f0bd74 | 472 | int i; |
88a1906b | 473 | int save_auto_load; |
7f6130ff | 474 | struct objfile *objfile; |
c906108c | 475 | |
e565b837 | 476 | #ifdef HAVE_SBRK |
1e3b796d | 477 | /* Set this before constructing scoped_command_stats. */ |
e565b837 DE |
478 | lim_at_start = (char *) sbrk (0); |
479 | #endif | |
480 | ||
1e3b796d | 481 | scoped_command_stats stat_reporter (false); |
c906108c | 482 | |
0fbb3da7 TT |
483 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) |
484 | setlocale (LC_MESSAGES, ""); | |
485 | #endif | |
486 | #if defined (HAVE_SETLOCALE) | |
487 | setlocale (LC_CTYPE, ""); | |
488 | #endif | |
66797541 | 489 | #ifdef ENABLE_NLS |
0fbb3da7 TT |
490 | bindtextdomain (PACKAGE, LOCALEDIR); |
491 | textdomain (PACKAGE); | |
66797541 | 492 | #endif |
0fbb3da7 | 493 | |
5484b13a | 494 | bfd_init (); |
614c279d | 495 | notice_open_fds (); |
f348d89a | 496 | save_original_signals_state (); |
5484b13a | 497 | |
2669cade | 498 | saved_command_line = (char *) xstrdup (""); |
694ec099 | 499 | |
ffa4ac95 YQ |
500 | #ifdef __MINGW32__ |
501 | /* Ensure stderr is unbuffered. A Cygwin pty or pipe is implemented | |
502 | as a Windows pipe, and Windows buffers on pipes. */ | |
503 | setvbuf (stderr, NULL, _IONBF, BUFSIZ); | |
504 | #endif | |
505 | ||
895b8f30 | 506 | main_ui = new ui (stdin, stdout, stderr); |
98d9f24e | 507 | current_ui = main_ui; |
ffa4ac95 | 508 | |
449092f6 CV |
509 | gdb_stdtargerr = gdb_stderr; /* for moment */ |
510 | gdb_stdtargin = gdb_stdin; /* for moment */ | |
c906108c | 511 | |
b5981e5a EZ |
512 | #ifdef __MINGW32__ |
513 | /* On Windows, argv[0] is not necessarily set to absolute form when | |
514 | GDB is found along PATH, without which relocation doesn't work. */ | |
515 | gdb_program_name = windows_get_absolute_argv0 (argv[0]); | |
516 | #else | |
16e7150e | 517 | gdb_program_name = xstrdup (argv[0]); |
b5981e5a | 518 | #endif |
16e7150e | 519 | |
075c7033 | 520 | /* Prefix warning messages with the command name. */ |
69bbf465 PA |
521 | gdb::unique_xmalloc_ptr<char> tmp_warn_preprint |
522 | (xstrprintf ("%s: warning: ", gdb_program_name)); | |
523 | warning_pre_print = tmp_warn_preprint.get (); | |
075c7033 | 524 | |
43573013 SDJ |
525 | current_directory = getcwd (NULL, 0); |
526 | if (current_directory == NULL) | |
075c7033 GB |
527 | perror_warning_with_name (_("error finding working directory")); |
528 | ||
030292b7 | 529 | /* Set the sysroot path. */ |
478aac75 DE |
530 | gdb_sysroot = relocate_gdb_directory (TARGET_SYSTEM_ROOT, |
531 | TARGET_SYSTEM_ROOT_RELOCATABLE); | |
030292b7 | 532 | |
fed040c6 GB |
533 | if (gdb_sysroot == NULL || *gdb_sysroot == '\0') |
534 | { | |
535 | xfree (gdb_sysroot); | |
536 | gdb_sysroot = xstrdup (TARGET_SYSROOT_PREFIX); | |
537 | } | |
538 | ||
478aac75 DE |
539 | debug_file_directory = relocate_gdb_directory (DEBUGDIR, |
540 | DEBUGDIR_RELOCATABLE); | |
030292b7 | 541 | |
478aac75 DE |
542 | gdb_datadir = relocate_gdb_directory (GDB_DATADIR, |
543 | GDB_DATADIR_RELOCATABLE); | |
aa28a74e | 544 | |
0c4a4063 | 545 | #ifdef WITH_PYTHON_PATH |
e6040cbd MS |
546 | { |
547 | /* For later use in helping Python find itself. */ | |
b36cec19 | 548 | char *tmp = concat (WITH_PYTHON_PATH, SLASH_STRING, "lib", (char *) NULL); |
e6040cbd | 549 | |
478aac75 | 550 | python_libdir = relocate_gdb_directory (tmp, PYTHON_PATH_RELOCATABLE); |
e6040cbd MS |
551 | xfree (tmp); |
552 | } | |
0c4a4063 DE |
553 | #endif |
554 | ||
29b0e8a2 JM |
555 | #ifdef RELOC_SRCDIR |
556 | add_substitute_path_rule (RELOC_SRCDIR, | |
b5981e5a | 557 | make_relative_prefix (gdb_program_name, BINDIR, |
29b0e8a2 JM |
558 | RELOC_SRCDIR)); |
559 | #endif | |
560 | ||
4389a95a | 561 | /* There will always be an interpreter. Either the one passed into |
e46e5ccd KS |
562 | this captured main, or one specified by the user at start up, or |
563 | the console. Initialize the interpreter to the one requested by | |
564 | the application. */ | |
11bf1490 | 565 | interpreter_p = xstrdup (context->interpreter_p); |
4389a95a | 566 | |
c906108c SS |
567 | /* Parse arguments and options. */ |
568 | { | |
569 | int c; | |
570 | /* When var field is 0, use flag field to record the equivalent | |
571 | short option (or arbitrary numbers starting at 10 for those | |
572 | with no equivalent). */ | |
49c7e338 AC |
573 | enum { |
574 | OPT_SE = 10, | |
575 | OPT_CD, | |
576 | OPT_ANNOTATE, | |
577 | OPT_STATISTICS, | |
42fa7c0f AC |
578 | OPT_TUI, |
579 | OPT_NOWINDOWS, | |
8320cc4f JK |
580 | OPT_WINDOWS, |
581 | OPT_IX, | |
582 | OPT_IEX | |
49c7e338 | 583 | }; |
c906108c | 584 | static struct option long_options[] = |
c5aa993b | 585 | { |
49c7e338 | 586 | {"tui", no_argument, 0, OPT_TUI}, |
c5aa993b JM |
587 | {"dbx", no_argument, &dbx_commands, 1}, |
588 | {"readnow", no_argument, &readnow_symbol_files, 1}, | |
589 | {"r", no_argument, &readnow_symbol_files, 1}, | |
c5aa993b JM |
590 | {"quiet", no_argument, &quiet, 1}, |
591 | {"q", no_argument, &quiet, 1}, | |
592 | {"silent", no_argument, &quiet, 1}, | |
07540c15 | 593 | {"nh", no_argument, &inhibit_home_gdbinit, 1}, |
c5aa993b JM |
594 | {"nx", no_argument, &inhibit_gdbinit, 1}, |
595 | {"n", no_argument, &inhibit_gdbinit, 1}, | |
1a088d06 | 596 | {"batch-silent", no_argument, 0, 'B'}, |
7c953934 | 597 | {"batch", no_argument, &batch_flag, 1}, |
c5aa993b | 598 | |
371d5dec MS |
599 | /* This is a synonym for "--annotate=1". --annotate is now |
600 | preferred, but keep this here for a long time because people | |
601 | will be running emacses which use --fullname. */ | |
c5aa993b JM |
602 | {"fullname", no_argument, 0, 'f'}, |
603 | {"f", no_argument, 0, 'f'}, | |
604 | ||
49c7e338 | 605 | {"annotate", required_argument, 0, OPT_ANNOTATE}, |
c5aa993b | 606 | {"help", no_argument, &print_help, 1}, |
49c7e338 | 607 | {"se", required_argument, 0, OPT_SE}, |
c5aa993b JM |
608 | {"symbols", required_argument, 0, 's'}, |
609 | {"s", required_argument, 0, 's'}, | |
610 | {"exec", required_argument, 0, 'e'}, | |
611 | {"e", required_argument, 0, 'e'}, | |
612 | {"core", required_argument, 0, 'c'}, | |
613 | {"c", required_argument, 0, 'c'}, | |
00546b04 MS |
614 | {"pid", required_argument, 0, 'p'}, |
615 | {"p", required_argument, 0, 'p'}, | |
c5aa993b | 616 | {"command", required_argument, 0, 'x'}, |
8a5a3c82 | 617 | {"eval-command", required_argument, 0, 'X'}, |
c5aa993b | 618 | {"version", no_argument, &print_version, 1}, |
6eaaf48b | 619 | {"configuration", no_argument, &print_configuration, 1}, |
c5aa993b | 620 | {"x", required_argument, 0, 'x'}, |
8a5a3c82 | 621 | {"ex", required_argument, 0, 'X'}, |
8320cc4f JK |
622 | {"init-command", required_argument, 0, OPT_IX}, |
623 | {"init-eval-command", required_argument, 0, OPT_IEX}, | |
624 | {"ix", required_argument, 0, OPT_IX}, | |
625 | {"iex", required_argument, 0, OPT_IEX}, | |
3fc11d3e JM |
626 | #ifdef GDBTK |
627 | {"tclcommand", required_argument, 0, 'z'}, | |
628 | {"enable-external-editor", no_argument, 0, 'y'}, | |
629 | {"editor-command", required_argument, 0, 'w'}, | |
630 | #endif | |
8b93c638 JM |
631 | {"ui", required_argument, 0, 'i'}, |
632 | {"interpreter", required_argument, 0, 'i'}, | |
633 | {"i", required_argument, 0, 'i'}, | |
c5aa993b | 634 | {"directory", required_argument, 0, 'd'}, |
c4093a6a | 635 | {"d", required_argument, 0, 'd'}, |
aae1c79a | 636 | {"data-directory", required_argument, 0, 'D'}, |
8d551b02 | 637 | {"D", required_argument, 0, 'D'}, |
49c7e338 | 638 | {"cd", required_argument, 0, OPT_CD}, |
c5aa993b JM |
639 | {"tty", required_argument, 0, 't'}, |
640 | {"baud", required_argument, 0, 'b'}, | |
641 | {"b", required_argument, 0, 'b'}, | |
42fa7c0f AC |
642 | {"nw", no_argument, NULL, OPT_NOWINDOWS}, |
643 | {"nowindows", no_argument, NULL, OPT_NOWINDOWS}, | |
644 | {"w", no_argument, NULL, OPT_WINDOWS}, | |
645 | {"windows", no_argument, NULL, OPT_WINDOWS}, | |
49c7e338 | 646 | {"statistics", no_argument, 0, OPT_STATISTICS}, |
c5aa993b | 647 | {"write", no_argument, &write_files, 1}, |
552c04a7 | 648 | {"args", no_argument, &set_args, 1}, |
39c76ca3 | 649 | {"l", required_argument, 0, 'l'}, |
4b0ad762 | 650 | {"return-child-result", no_argument, &return_child_result, 1}, |
c5aa993b JM |
651 | {0, no_argument, 0, 0} |
652 | }; | |
c906108c SS |
653 | |
654 | while (1) | |
655 | { | |
656 | int option_index; | |
657 | ||
658 | c = getopt_long_only (argc, argv, "", | |
659 | long_options, &option_index); | |
552c04a7 | 660 | if (c == EOF || set_args) |
c906108c SS |
661 | break; |
662 | ||
663 | /* Long option that takes an argument. */ | |
664 | if (c == 0 && long_options[option_index].flag == 0) | |
665 | c = long_options[option_index].val; | |
666 | ||
667 | switch (c) | |
668 | { | |
669 | case 0: | |
670 | /* Long option that just sets a flag. */ | |
671 | break; | |
49c7e338 | 672 | case OPT_SE: |
c906108c SS |
673 | symarg = optarg; |
674 | execarg = optarg; | |
675 | break; | |
49c7e338 | 676 | case OPT_CD: |
c906108c SS |
677 | cdarg = optarg; |
678 | break; | |
49c7e338 | 679 | case OPT_ANNOTATE: |
c906108c SS |
680 | /* FIXME: what if the syntax is wrong (e.g. not digits)? */ |
681 | annotation_level = atoi (optarg); | |
682 | break; | |
49c7e338 | 683 | case OPT_STATISTICS: |
c906108c | 684 | /* Enable the display of both time and space usage. */ |
bd712aed DE |
685 | set_per_command_time (1); |
686 | set_per_command_space (1); | |
c906108c | 687 | break; |
49c7e338 | 688 | case OPT_TUI: |
021e7609 | 689 | /* --tui is equivalent to -i=tui. */ |
b0da54f1 | 690 | #ifdef TUI |
021e7609 | 691 | xfree (interpreter_p); |
cc4349ed | 692 | interpreter_p = xstrdup (INTERP_TUI); |
b0da54f1 | 693 | #else |
91b35fd0 | 694 | error (_("%s: TUI mode is not supported"), gdb_program_name); |
b0da54f1 | 695 | #endif |
021e7609 | 696 | break; |
42fa7c0f AC |
697 | case OPT_WINDOWS: |
698 | /* FIXME: cagney/2003-03-01: Not sure if this option is | |
699 | actually useful, and if it is, what it should do. */ | |
cc4349ed AS |
700 | #ifdef GDBTK |
701 | /* --windows is equivalent to -i=insight. */ | |
702 | xfree (interpreter_p); | |
703 | interpreter_p = xstrdup (INTERP_INSIGHT); | |
704 | #endif | |
42fa7c0f AC |
705 | break; |
706 | case OPT_NOWINDOWS: | |
707 | /* -nw is equivalent to -i=console. */ | |
708 | xfree (interpreter_p); | |
709 | interpreter_p = xstrdup (INTERP_CONSOLE); | |
42fa7c0f | 710 | break; |
c906108c SS |
711 | case 'f': |
712 | annotation_level = 1; | |
c906108c SS |
713 | break; |
714 | case 's': | |
715 | symarg = optarg; | |
716 | break; | |
717 | case 'e': | |
718 | execarg = optarg; | |
719 | break; | |
720 | case 'c': | |
721 | corearg = optarg; | |
722 | break; | |
00546b04 | 723 | case 'p': |
a4d9b460 | 724 | pidarg = optarg; |
00546b04 | 725 | break; |
c906108c | 726 | case 'x': |
7a63494a | 727 | cmdarg_vec.emplace_back (CMDARG_FILE, optarg); |
8a5a3c82 AS |
728 | break; |
729 | case 'X': | |
7a63494a | 730 | cmdarg_vec.emplace_back (CMDARG_COMMAND, optarg); |
26743505 | 731 | break; |
8320cc4f | 732 | case OPT_IX: |
7a63494a | 733 | cmdarg_vec.emplace_back (CMDARG_INIT_FILE, optarg); |
8320cc4f JK |
734 | break; |
735 | case OPT_IEX: | |
7a63494a | 736 | cmdarg_vec.emplace_back (CMDARG_INIT_COMMAND, optarg); |
c906108c | 737 | break; |
1a088d06 | 738 | case 'B': |
7c953934 | 739 | batch_flag = batch_silent = 1; |
d7e74731 | 740 | gdb_stdout = new null_file (); |
1a088d06 | 741 | break; |
aae1c79a | 742 | case 'D': |
8d551b02 | 743 | if (optarg[0] == '\0') |
91b35fd0 GB |
744 | error (_("%s: empty path for `--data-directory'"), |
745 | gdb_program_name); | |
8d551b02 | 746 | set_gdb_data_directory (optarg); |
e64e0392 | 747 | gdb_datadir_provided = 1; |
aae1c79a | 748 | break; |
3fc11d3e JM |
749 | #ifdef GDBTK |
750 | case 'z': | |
751 | { | |
371d5dec MS |
752 | extern int gdbtk_test (char *); |
753 | ||
3fc11d3e | 754 | if (!gdbtk_test (optarg)) |
91b35fd0 GB |
755 | error (_("%s: unable to load tclcommand file \"%s\""), |
756 | gdb_program_name, optarg); | |
3fc11d3e JM |
757 | break; |
758 | } | |
759 | case 'y': | |
78f49586 TT |
760 | /* Backwards compatibility only. */ |
761 | break; | |
3fc11d3e JM |
762 | case 'w': |
763 | { | |
3a9b40b6 JK |
764 | /* Set the external editor commands when gdb is farming out files |
765 | to be edited by another program. */ | |
766 | extern char *external_editor_command; | |
767 | ||
3fc11d3e JM |
768 | external_editor_command = xstrdup (optarg); |
769 | break; | |
770 | } | |
771 | #endif /* GDBTK */ | |
fb40c209 | 772 | case 'i': |
4389a95a AC |
773 | xfree (interpreter_p); |
774 | interpreter_p = xstrdup (optarg); | |
fb40c209 | 775 | break; |
c906108c | 776 | case 'd': |
f60ee22e | 777 | dirarg.push_back (optarg); |
c906108c SS |
778 | break; |
779 | case 't': | |
780 | ttyarg = optarg; | |
781 | break; | |
782 | case 'q': | |
783 | quiet = 1; | |
784 | break; | |
785 | case 'b': | |
786 | { | |
787 | int i; | |
788 | char *p; | |
789 | ||
790 | i = strtol (optarg, &p, 0); | |
791 | if (i == 0 && p == optarg) | |
075c7033 GB |
792 | warning (_("could not set baud rate to `%s'."), |
793 | optarg); | |
c906108c SS |
794 | else |
795 | baud_rate = i; | |
796 | } | |
046ca86a | 797 | break; |
c906108c SS |
798 | case 'l': |
799 | { | |
800 | int i; | |
801 | char *p; | |
802 | ||
803 | i = strtol (optarg, &p, 0); | |
804 | if (i == 0 && p == optarg) | |
075c7033 GB |
805 | warning (_("could not set timeout limit to `%s'."), |
806 | optarg); | |
c906108c SS |
807 | else |
808 | remote_timeout = i; | |
809 | } | |
810 | break; | |
811 | ||
c906108c | 812 | case '?': |
91b35fd0 GB |
813 | error (_("Use `%s --help' for a complete list of options."), |
814 | gdb_program_name); | |
c906108c SS |
815 | } |
816 | } | |
817 | ||
7c953934 | 818 | if (batch_flag) |
c906108c SS |
819 | quiet = 1; |
820 | } | |
821 | ||
992c7d70 GB |
822 | /* Try to set up an alternate signal stack for SIGSEGV handlers. */ |
823 | setup_alternate_signal_stack (); | |
824 | ||
f218b647 | 825 | /* Initialize all files. */ |
b5981e5a | 826 | gdb_init (gdb_program_name); |
c906108c | 827 | |
371d5dec MS |
828 | /* Now that gdb_init has created the initial inferior, we're in |
829 | position to set args for that inferior. */ | |
3f81c18a VP |
830 | if (set_args) |
831 | { | |
832 | /* The remaining options are the command-line options for the | |
833 | inferior. The first one is the sym/exec file, and the rest | |
834 | are arguments. */ | |
835 | if (optind >= argc) | |
91b35fd0 GB |
836 | error (_("%s: `--args' specified but no program specified"), |
837 | gdb_program_name); | |
838 | ||
3f81c18a VP |
839 | symarg = argv[optind]; |
840 | execarg = argv[optind]; | |
841 | ++optind; | |
842 | set_inferior_args_vector (argc - optind, &argv[optind]); | |
843 | } | |
844 | else | |
845 | { | |
846 | /* OK, that's all the options. */ | |
847 | ||
848 | /* The first argument, if specified, is the name of the | |
849 | executable. */ | |
850 | if (optind < argc) | |
851 | { | |
852 | symarg = argv[optind]; | |
853 | execarg = argv[optind]; | |
854 | optind++; | |
855 | } | |
856 | ||
857 | /* If the user hasn't already specified a PID or the name of a | |
858 | core file, then a second optional argument is allowed. If | |
859 | present, this argument should be interpreted as either a | |
860 | PID or a core file, whichever works. */ | |
861 | if (pidarg == NULL && corearg == NULL && optind < argc) | |
862 | { | |
863 | pid_or_core_arg = argv[optind]; | |
864 | optind++; | |
865 | } | |
866 | ||
867 | /* Any argument left on the command line is unexpected and | |
868 | will be ignored. Inform the user. */ | |
869 | if (optind < argc) | |
3e43a32a MS |
870 | fprintf_unfiltered (gdb_stderr, |
871 | _("Excess command line " | |
872 | "arguments ignored. (%s%s)\n"), | |
3f81c18a VP |
873 | argv[optind], |
874 | (optind == argc - 1) ? "" : " ..."); | |
875 | } | |
876 | ||
025bb325 | 877 | /* Lookup gdbinit files. Note that the gdbinit file name may be |
371d5dec MS |
878 | overriden during file initialization, so get_init_files should be |
879 | called after gdb_init. */ | |
57a46001 JG |
880 | get_init_files (&system_gdbinit, &home_gdbinit, &local_gdbinit); |
881 | ||
c906108c | 882 | /* Do these (and anything which might call wrap_here or *_filtered) |
4389a95a AC |
883 | after initialize_all_files() but before the interpreter has been |
884 | installed. Otherwize the help/version messages will be eaten by | |
885 | the interpreter's output handler. */ | |
886 | ||
c906108c SS |
887 | if (print_version) |
888 | { | |
889 | print_gdb_version (gdb_stdout); | |
890 | wrap_here (""); | |
891 | printf_filtered ("\n"); | |
892 | exit (0); | |
893 | } | |
894 | ||
895 | if (print_help) | |
896 | { | |
897 | print_gdb_help (gdb_stdout); | |
898 | fputs_unfiltered ("\n", gdb_stdout); | |
899 | exit (0); | |
900 | } | |
901 | ||
6eaaf48b EZ |
902 | if (print_configuration) |
903 | { | |
904 | print_gdb_configuration (gdb_stdout); | |
905 | wrap_here (""); | |
906 | printf_filtered ("\n"); | |
907 | exit (0); | |
908 | } | |
909 | ||
4389a95a AC |
910 | /* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets |
911 | GDB retain the old MI1 interpreter startup behavior. Output the | |
912 | copyright message before the interpreter is installed. That way | |
913 | it isn't encapsulated in MI output. */ | |
914 | if (!quiet && strcmp (interpreter_p, INTERP_MI1) == 0) | |
915 | { | |
371d5dec MS |
916 | /* Print all the junk at the top, with trailing "..." if we are |
917 | about to read a symbol file (possibly slowly). */ | |
4389a95a AC |
918 | print_gdb_version (gdb_stdout); |
919 | if (symarg) | |
920 | printf_filtered (".."); | |
921 | wrap_here (""); | |
e896d70e | 922 | printf_filtered ("\n"); |
371d5dec MS |
923 | gdb_flush (gdb_stdout); /* Force to screen during slow |
924 | operations. */ | |
4389a95a AC |
925 | } |
926 | ||
4389a95a | 927 | /* Install the default UI. All the interpreters should have had a |
371d5dec | 928 | look at things by now. Initialize the default interpreter. */ |
60eb5395 | 929 | set_top_level_interpreter (interpreter_p); |
4389a95a AC |
930 | |
931 | /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets | |
932 | GDB retain the old MI1 interpreter startup behavior. Output the | |
933 | copyright message after the interpreter is installed when it is | |
934 | any sane interpreter. */ | |
935 | if (!quiet && !current_interp_named_p (INTERP_MI1)) | |
c906108c | 936 | { |
371d5dec MS |
937 | /* Print all the junk at the top, with trailing "..." if we are |
938 | about to read a symbol file (possibly slowly). */ | |
c906108c SS |
939 | print_gdb_version (gdb_stdout); |
940 | if (symarg) | |
941 | printf_filtered (".."); | |
c5aa993b | 942 | wrap_here (""); |
e896d70e | 943 | printf_filtered ("\n"); |
371d5dec MS |
944 | gdb_flush (gdb_stdout); /* Force to screen during slow |
945 | operations. */ | |
c906108c SS |
946 | } |
947 | ||
e896d70e | 948 | /* Set off error and warning messages with a blank line. */ |
69bbf465 | 949 | tmp_warn_preprint.reset (); |
defc6f8c | 950 | warning_pre_print = _("\nwarning: "); |
c906108c | 951 | |
16e7150e JG |
952 | /* Read and execute the system-wide gdbinit file, if it exists. |
953 | This is done *before* all the command line arguments are | |
954 | processed; it sets global parameters, which are independent of | |
955 | what file you are debugging or what directory you are in. */ | |
956 | if (system_gdbinit && !inhibit_gdbinit) | |
013af3fc | 957 | catch_command_errors (source_script, system_gdbinit, 0); |
16e7150e | 958 | |
c906108c SS |
959 | /* Read and execute $HOME/.gdbinit file, if it exists. This is done |
960 | *before* all the command line arguments are processed; it sets | |
961 | global parameters, which are independent of what file you are | |
962 | debugging or what directory you are in. */ | |
c906108c | 963 | |
07540c15 | 964 | if (home_gdbinit && !inhibit_gdbinit && !inhibit_home_gdbinit) |
013af3fc | 965 | catch_command_errors (source_script, home_gdbinit, 0); |
c906108c | 966 | |
2d7b58e8 | 967 | /* Process '-ix' and '-iex' options early. */ |
f60ee22e | 968 | for (i = 0; i < cmdarg_vec.size (); i++) |
2d7b58e8 | 969 | { |
f60ee22e TT |
970 | const struct cmdarg &cmdarg_p = cmdarg_vec[i]; |
971 | ||
972 | switch (cmdarg_p.type) | |
973 | { | |
974 | case CMDARG_INIT_FILE: | |
013af3fc TT |
975 | catch_command_errors (source_script, cmdarg_p.string, |
976 | !batch_flag); | |
f60ee22e TT |
977 | break; |
978 | case CMDARG_INIT_COMMAND: | |
979 | catch_command_errors (execute_command, cmdarg_p.string, | |
980 | !batch_flag); | |
981 | break; | |
982 | } | |
2d7b58e8 JK |
983 | } |
984 | ||
c906108c SS |
985 | /* Now perform all the actions indicated by the arguments. */ |
986 | if (cdarg != NULL) | |
987 | { | |
97c18565 | 988 | catch_command_errors (cd_command, cdarg, 0); |
c906108c | 989 | } |
c906108c | 990 | |
f60ee22e | 991 | for (i = 0; i < dirarg.size (); i++) |
97c18565 | 992 | catch_command_errors (directory_switch, dirarg[i], 0); |
c906108c | 993 | |
88a1906b | 994 | /* Skip auto-loading section-specified scripts until we've sourced |
371d5dec MS |
995 | local_gdbinit (which is often used to augment the source search |
996 | path). */ | |
bf88dd68 JK |
997 | save_auto_load = global_auto_load; |
998 | global_auto_load = 0; | |
88a1906b | 999 | |
c906108c SS |
1000 | if (execarg != NULL |
1001 | && symarg != NULL | |
5cb316ef | 1002 | && strcmp (execarg, symarg) == 0) |
c906108c | 1003 | { |
11cf8741 JM |
1004 | /* The exec file and the symbol-file are the same. If we can't |
1005 | open it, better only print one error message. | |
371d5dec | 1006 | catch_command_errors returns non-zero on success! */ |
013af3fc TT |
1007 | if (catch_command_errors (exec_file_attach, execarg, |
1008 | !batch_flag)) | |
1009 | catch_command_errors (symbol_file_add_main_adapter, symarg, | |
1010 | !batch_flag); | |
c906108c SS |
1011 | } |
1012 | else | |
1013 | { | |
1014 | if (execarg != NULL) | |
013af3fc TT |
1015 | catch_command_errors (exec_file_attach, execarg, |
1016 | !batch_flag); | |
c906108c | 1017 | if (symarg != NULL) |
013af3fc TT |
1018 | catch_command_errors (symbol_file_add_main_adapter, symarg, |
1019 | !batch_flag); | |
c906108c | 1020 | } |
c906108c | 1021 | |
a4d9b460 | 1022 | if (corearg && pidarg) |
3e43a32a MS |
1023 | error (_("Can't attach to process and specify " |
1024 | "a core file at the same time.")); | |
a4d9b460 | 1025 | |
c906108c | 1026 | if (corearg != NULL) |
97c18565 | 1027 | catch_command_errors (core_file_command, corearg, !batch_flag); |
a4d9b460 | 1028 | else if (pidarg != NULL) |
97c18565 | 1029 | catch_command_errors (attach_command, pidarg, !batch_flag); |
a4d9b460 | 1030 | else if (pid_or_core_arg) |
c906108c | 1031 | { |
a4d9b460 PA |
1032 | /* The user specified 'gdb program pid' or gdb program core'. |
1033 | If pid_or_core_arg's first character is a digit, try attach | |
1034 | first and then corefile. Otherwise try just corefile. */ | |
00546b04 | 1035 | |
a4d9b460 | 1036 | if (isdigit (pid_or_core_arg[0])) |
11cf8741 | 1037 | { |
a4d9b460 | 1038 | if (catch_command_errors (attach_command, pid_or_core_arg, |
97c18565 | 1039 | !batch_flag) == 0) |
a4d9b460 | 1040 | catch_command_errors (core_file_command, pid_or_core_arg, |
97c18565 | 1041 | !batch_flag); |
11cf8741 | 1042 | } |
a4d9b460 PA |
1043 | else /* Can't be a pid, better be a corefile. */ |
1044 | catch_command_errors (core_file_command, pid_or_core_arg, | |
97c18565 | 1045 | !batch_flag); |
c906108c | 1046 | } |
c906108c SS |
1047 | |
1048 | if (ttyarg != NULL) | |
3f81c18a | 1049 | set_inferior_io_terminal (ttyarg); |
c906108c | 1050 | |
371d5dec | 1051 | /* Error messages should no longer be distinguished with extra output. */ |
defc6f8c | 1052 | warning_pre_print = _("warning: "); |
c906108c SS |
1053 | |
1054 | /* Read the .gdbinit file in the current directory, *if* it isn't | |
1055 | the same as the $HOME/.gdbinit file (it should exist, also). */ | |
bf88dd68 JK |
1056 | if (local_gdbinit) |
1057 | { | |
14278e1f TT |
1058 | auto_load_local_gdbinit_pathname |
1059 | = gdb_realpath (local_gdbinit).release (); | |
bf88dd68 | 1060 | |
bccbefd2 | 1061 | if (!inhibit_gdbinit && auto_load_local_gdbinit |
4dc84fd1 JK |
1062 | && file_is_auto_load_safe (local_gdbinit, |
1063 | _("auto-load: Loading .gdbinit " | |
1064 | "file \"%s\".\n"), | |
1065 | local_gdbinit)) | |
bf88dd68 JK |
1066 | { |
1067 | auto_load_local_gdbinit_loaded = 1; | |
1068 | ||
013af3fc | 1069 | catch_command_errors (source_script, local_gdbinit, 0); |
bf88dd68 JK |
1070 | } |
1071 | } | |
c906108c | 1072 | |
88a1906b DE |
1073 | /* Now that all .gdbinit's have been read and all -d options have been |
1074 | processed, we can read any scripts mentioned in SYMARG. | |
1075 | We wait until now because it is common to add to the source search | |
1076 | path in local_gdbinit. */ | |
bf88dd68 | 1077 | global_auto_load = save_auto_load; |
7f6130ff JK |
1078 | ALL_OBJFILES (objfile) |
1079 | load_auto_scripts_for_objfile (objfile); | |
88a1906b | 1080 | |
8320cc4f | 1081 | /* Process '-x' and '-ex' options. */ |
f60ee22e | 1082 | for (i = 0; i < cmdarg_vec.size (); i++) |
c906108c | 1083 | { |
f60ee22e TT |
1084 | const struct cmdarg &cmdarg_p = cmdarg_vec[i]; |
1085 | ||
1086 | switch (cmdarg_p.type) | |
1087 | { | |
1088 | case CMDARG_FILE: | |
013af3fc TT |
1089 | catch_command_errors (source_script, cmdarg_p.string, |
1090 | !batch_flag); | |
f60ee22e TT |
1091 | break; |
1092 | case CMDARG_COMMAND: | |
1093 | catch_command_errors (execute_command, cmdarg_p.string, | |
1094 | !batch_flag); | |
1095 | break; | |
1096 | } | |
c906108c | 1097 | } |
c906108c | 1098 | |
371d5dec MS |
1099 | /* Read in the old history after all the command files have been |
1100 | read. */ | |
c5aa993b | 1101 | init_history (); |
c906108c | 1102 | |
7c953934 | 1103 | if (batch_flag) |
c906108c SS |
1104 | { |
1105 | /* We have hit the end of the batch file. */ | |
4b0ad762 | 1106 | quit_force (NULL, 0); |
c906108c | 1107 | } |
1e3b796d TT |
1108 | } |
1109 | ||
1110 | static void | |
1111 | captured_main (void *data) | |
1112 | { | |
1113 | struct captured_main_args *context = (struct captured_main_args *) data; | |
1114 | ||
1115 | captured_main_1 (context); | |
c906108c | 1116 | |
11cf8741 JM |
1117 | /* NOTE: cagney/1999-11-07: There is probably no reason for not |
1118 | moving this loop and the code found in captured_command_loop() | |
1119 | into the command_loop() proper. The main thing holding back that | |
371d5dec | 1120 | change - SET_TOP_LEVEL() - has been eliminated. */ |
11cf8741 JM |
1121 | while (1) |
1122 | { | |
bf469271 PA |
1123 | TRY |
1124 | { | |
1125 | captured_command_loop (); | |
1126 | } | |
1127 | CATCH (ex, RETURN_MASK_ALL) | |
1128 | { | |
1129 | exception_print (gdb_stderr, ex); | |
1130 | } | |
1131 | END_CATCH | |
11cf8741 | 1132 | } |
11cf8741 JM |
1133 | /* No exit -- exit is through quit_command. */ |
1134 | } | |
c906108c | 1135 | |
11cf8741 | 1136 | int |
f15ab4a7 | 1137 | gdb_main (struct captured_main_args *args) |
11cf8741 | 1138 | { |
98d9f24e PA |
1139 | TRY |
1140 | { | |
1141 | captured_main (args); | |
1142 | } | |
1143 | CATCH (ex, RETURN_MASK_ALL) | |
1144 | { | |
1145 | exception_print (gdb_stderr, ex); | |
1146 | } | |
1147 | END_CATCH | |
1148 | ||
864dbc90 AC |
1149 | /* The only way to end up here is by an error (normal exit is |
1150 | handled by quit_force()), hence always return an error status. */ | |
1151 | return 1; | |
c906108c SS |
1152 | } |
1153 | ||
11cf8741 | 1154 | |
c906108c SS |
1155 | /* Don't use *_filtered for printing help. We don't want to prompt |
1156 | for continue no matter how small the screen or how much we're going | |
1157 | to print. */ | |
1158 | ||
1159 | static void | |
d9fcf2fb | 1160 | print_gdb_help (struct ui_file *stream) |
c906108c | 1161 | { |
50dd9793 PA |
1162 | const char *system_gdbinit; |
1163 | const char *home_gdbinit; | |
1164 | const char *local_gdbinit; | |
16e7150e JG |
1165 | |
1166 | get_init_files (&system_gdbinit, &home_gdbinit, &local_gdbinit); | |
1167 | ||
b187bec1 EZ |
1168 | /* Note: The options in the list below are only approximately sorted |
1169 | in the alphabetical order, so as to group closely related options | |
1170 | together. */ | |
defc6f8c | 1171 | fputs_unfiltered (_("\ |
c906108c | 1172 | This is the GNU debugger. Usage:\n\n\ |
552c04a7 TT |
1173 | gdb [options] [executable-file [core-file or process-id]]\n\ |
1174 | gdb [options] --args executable-file [inferior-arguments ...]\n\n\ | |
defc6f8c TT |
1175 | "), stream); |
1176 | fputs_unfiltered (_("\ | |
b187bec1 | 1177 | Selection of debuggee and its files:\n\n\ |
552c04a7 | 1178 | --args Arguments after executable-file are passed to inferior\n\ |
b187bec1 EZ |
1179 | --core=COREFILE Analyze the core dump COREFILE.\n\ |
1180 | --exec=EXECFILE Use EXECFILE as the executable.\n\ | |
1181 | --pid=PID Attach to running process PID.\n\ | |
1182 | --directory=DIR Search for source files in DIR.\n\ | |
1183 | --se=FILE Use FILE as symbol file and executable file.\n\ | |
1184 | --symbols=SYMFILE Read symbols from SYMFILE.\n\ | |
1185 | --readnow Fully read symbol files on first access.\n\ | |
1186 | --write Set writing into executable and core files.\n\n\ | |
defc6f8c TT |
1187 | "), stream); |
1188 | fputs_unfiltered (_("\ | |
b187bec1 | 1189 | Initial commands and command files:\n\n\ |
8a5a3c82 | 1190 | --command=FILE, -x Execute GDB commands from FILE.\n\ |
b187bec1 EZ |
1191 | --init-command=FILE, -ix\n\ |
1192 | Like -x but execute commands before loading inferior.\n\ | |
8a5a3c82 AS |
1193 | --eval-command=COMMAND, -ex\n\ |
1194 | Execute a single GDB command.\n\ | |
1195 | May be used multiple times and in conjunction\n\ | |
1196 | with --command.\n\ | |
b187bec1 EZ |
1197 | --init-eval-command=COMMAND, -iex\n\ |
1198 | Like -ex but before loading inferior.\n\ | |
1199 | --nh Do not read ~/.gdbinit.\n\ | |
1200 | --nx Do not read any .gdbinit files in any directory.\n\n\ | |
defc6f8c TT |
1201 | "), stream); |
1202 | fputs_unfiltered (_("\ | |
b187bec1 | 1203 | Output and user interface control:\n\n\ |
c906108c | 1204 | --fullname Output information used by emacs-GDB interface.\n\ |
8b93c638 JM |
1205 | --interpreter=INTERP\n\ |
1206 | Select a specific interpreter / user interface\n\ | |
c906108c | 1207 | --tty=TTY Use TTY for input/output by the program being debugged.\n\ |
b187bec1 EZ |
1208 | -w Use the GUI interface.\n\ |
1209 | --nw Do not use the GUI interface.\n\ | |
defc6f8c | 1210 | "), stream); |
c906108c | 1211 | #if defined(TUI) |
defc6f8c | 1212 | fputs_unfiltered (_("\ |
c906108c | 1213 | --tui Use a terminal user interface.\n\ |
defc6f8c | 1214 | "), stream); |
c906108c | 1215 | #endif |
481860b3 | 1216 | fputs_unfiltered (_("\ |
b187bec1 | 1217 | --dbx DBX compatibility mode.\n\ |
adcc0a31 | 1218 | -q, --quiet, --silent\n\ |
1219 | Do not print version number on startup.\n\n\ | |
b187bec1 EZ |
1220 | "), stream); |
1221 | fputs_unfiltered (_("\ | |
1222 | Operating modes:\n\n\ | |
1223 | --batch Exit after processing options.\n\ | |
1224 | --batch-silent Like --batch, but suppress all gdb stdout output.\n\ | |
1225 | --return-child-result\n\ | |
1226 | GDB exit code will be the child's exit code.\n\ | |
1227 | --configuration Print details about GDB configuration and then exit.\n\ | |
1228 | --help Print this message and then exit.\n\ | |
1229 | --version Print version information and then exit.\n\n\ | |
1230 | Remote debugging options:\n\n\ | |
1231 | -b BAUDRATE Set serial port baud rate used for remote debugging.\n\ | |
1232 | -l TIMEOUT Set timeout in seconds for remote debugging.\n\n\ | |
1233 | Other options:\n\n\ | |
1234 | --cd=DIR Change current directory to DIR.\n\ | |
8d551b02 DE |
1235 | --data-directory=DIR, -D\n\ |
1236 | Set GDB's data-directory to DIR.\n\ | |
defc6f8c | 1237 | "), stream); |
defc6f8c | 1238 | fputs_unfiltered (_("\n\ |
16e7150e JG |
1239 | At startup, GDB reads the following init files and executes their commands:\n\ |
1240 | "), stream); | |
1241 | if (system_gdbinit) | |
1242 | fprintf_unfiltered (stream, _("\ | |
1243 | * system-wide init file: %s\n\ | |
1244 | "), system_gdbinit); | |
1245 | if (home_gdbinit) | |
1246 | fprintf_unfiltered (stream, _("\ | |
1247 | * user-specific init file: %s\n\ | |
1248 | "), home_gdbinit); | |
1249 | if (local_gdbinit) | |
1250 | fprintf_unfiltered (stream, _("\ | |
bf88dd68 | 1251 | * local init file (see also 'set auto-load local-gdbinit'): ./%s\n\ |
16e7150e JG |
1252 | "), local_gdbinit); |
1253 | fputs_unfiltered (_("\n\ | |
c906108c SS |
1254 | For more information, type \"help\" from within GDB, or consult the\n\ |
1255 | GDB manual (available as on-line info or a printed manual).\n\ | |
defc6f8c | 1256 | "), stream); |
c16158bc JM |
1257 | if (REPORT_BUGS_TO[0] && stream == gdb_stdout) |
1258 | fprintf_unfiltered (stream, _("\ | |
1259 | Report bugs to \"%s\".\n\ | |
1260 | "), REPORT_BUGS_TO); | |
c906108c | 1261 | } |