Commit | Line | Data |
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c906108c | 1 | /* Memory-access and commands for "inferior" process, for GDB. |
990a07ab | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
9b254dd1 | 4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
0fb0cc75 | 5 | 2008, 2009 Free Software Foundation, Inc. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include <signal.h> | |
24 | #include "gdb_string.h" | |
25 | #include "symtab.h" | |
26 | #include "gdbtypes.h" | |
27 | #include "frame.h" | |
28 | #include "inferior.h" | |
29 | #include "environ.h" | |
30 | #include "value.h" | |
31 | #include "gdbcmd.h" | |
1adeb98a | 32 | #include "symfile.h" |
c906108c SS |
33 | #include "gdbcore.h" |
34 | #include "target.h" | |
35 | #include "language.h" | |
36 | #include "symfile.h" | |
37 | #include "objfiles.h" | |
c94fdfd0 | 38 | #include "completer.h" |
8b93c638 | 39 | #include "ui-out.h" |
6426a772 | 40 | #include "event-top.h" |
96baa820 | 41 | #include "parser-defs.h" |
36160dc4 | 42 | #include "regcache.h" |
f9418c0f | 43 | #include "reggroups.h" |
fe898f56 | 44 | #include "block.h" |
a77053c2 | 45 | #include "solib.h" |
f9418c0f | 46 | #include <ctype.h> |
92ad9cd9 | 47 | #include "gdb_assert.h" |
281b533b | 48 | #include "observer.h" |
424163ea | 49 | #include "target-descriptions.h" |
ad842144 | 50 | #include "user-regs.h" |
32c1e744 | 51 | #include "exceptions.h" |
700b53b1 | 52 | #include "cli/cli-decode.h" |
a0ef4274 | 53 | #include "gdbthread.h" |
79a45b7d | 54 | #include "valprint.h" |
72cec141 | 55 | |
a58dd373 | 56 | /* Functions exported for general use, in inferior.h: */ |
c906108c | 57 | |
a14ed312 | 58 | void all_registers_info (char *, int); |
c906108c | 59 | |
a14ed312 | 60 | void registers_info (char *, int); |
c906108c | 61 | |
a58dd373 EZ |
62 | void nexti_command (char *, int); |
63 | ||
64 | void stepi_command (char *, int); | |
c906108c | 65 | |
a14ed312 | 66 | void continue_command (char *, int); |
c906108c | 67 | |
a58dd373 EZ |
68 | void interrupt_target_command (char *args, int from_tty); |
69 | ||
70 | /* Local functions: */ | |
71 | ||
72 | static void nofp_registers_info (char *, int); | |
73 | ||
c055b101 CV |
74 | static void print_return_value (struct type *func_type, |
75 | struct type *value_type); | |
11cf8741 | 76 | |
a14ed312 | 77 | static void until_next_command (int); |
c906108c | 78 | |
a14ed312 | 79 | static void until_command (char *, int); |
c906108c | 80 | |
a14ed312 | 81 | static void path_info (char *, int); |
c906108c | 82 | |
a14ed312 | 83 | static void path_command (char *, int); |
c906108c | 84 | |
a14ed312 | 85 | static void unset_command (char *, int); |
c906108c | 86 | |
a14ed312 | 87 | static void float_info (char *, int); |
c906108c | 88 | |
6ad8ae5c DJ |
89 | static void disconnect_command (char *, int); |
90 | ||
a14ed312 | 91 | static void unset_environment_command (char *, int); |
c906108c | 92 | |
a14ed312 | 93 | static void set_environment_command (char *, int); |
c906108c | 94 | |
a14ed312 | 95 | static void environment_info (char *, int); |
c906108c | 96 | |
a14ed312 | 97 | static void program_info (char *, int); |
c906108c | 98 | |
a14ed312 | 99 | static void finish_command (char *, int); |
c906108c | 100 | |
a14ed312 | 101 | static void signal_command (char *, int); |
c906108c | 102 | |
a14ed312 | 103 | static void jump_command (char *, int); |
c906108c | 104 | |
a14ed312 | 105 | static void step_1 (int, int, char *); |
611c83ae | 106 | static void step_once (int skip_subroutines, int single_inst, int count, int thread); |
c906108c | 107 | |
a14ed312 | 108 | static void next_command (char *, int); |
c906108c | 109 | |
a14ed312 | 110 | static void step_command (char *, int); |
c906108c | 111 | |
a14ed312 | 112 | static void run_command (char *, int); |
c906108c | 113 | |
a14ed312 | 114 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 115 | |
a14ed312 | 116 | static void go_command (char *line_no, int from_tty); |
392a587b | 117 | |
a14ed312 | 118 | static int strip_bg_char (char **); |
43ff13b4 | 119 | |
a14ed312 | 120 | void _initialize_infcmd (void); |
c906108c | 121 | |
c906108c | 122 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 123 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c SS |
124 | |
125 | /* String containing arguments to give to the program, separated by spaces. | |
126 | Empty string (pointer to '\0') means no args. */ | |
127 | ||
128 | static char *inferior_args; | |
129 | ||
552c04a7 TT |
130 | /* The inferior arguments as a vector. If INFERIOR_ARGC is nonzero, |
131 | then we must compute INFERIOR_ARGS from this (via the target). */ | |
132 | ||
133 | static int inferior_argc; | |
134 | static char **inferior_argv; | |
135 | ||
c906108c SS |
136 | /* File name for default use for standard in/out in the inferior. */ |
137 | ||
3cb3b8df | 138 | static char *inferior_io_terminal; |
c906108c SS |
139 | |
140 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
141 | Since various parts of infrun.c test this to see whether there is a program | |
142 | being debugged it should be nonzero (currently 3 is used) for remote | |
143 | debugging. */ | |
144 | ||
39f77062 | 145 | ptid_t inferior_ptid; |
c906108c | 146 | |
c906108c SS |
147 | /* Address at which inferior stopped. */ |
148 | ||
149 | CORE_ADDR stop_pc; | |
150 | ||
c906108c SS |
151 | /* Flag indicating that a command has proceeded the inferior past the |
152 | current breakpoint. */ | |
153 | ||
154 | int breakpoint_proceeded; | |
155 | ||
c906108c SS |
156 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
157 | ||
158 | int stop_stack_dummy; | |
159 | ||
160 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
161 | process. */ | |
162 | ||
163 | int stopped_by_random_signal; | |
164 | ||
c906108c SS |
165 | /* Environment to use for running inferior, |
166 | in format described in environ.h. */ | |
167 | ||
1bf1958d | 168 | struct gdb_environ *inferior_environ; |
c906108c | 169 | \f |
07091751 FN |
170 | /* Accessor routines. */ |
171 | ||
3cb3b8df BR |
172 | void |
173 | set_inferior_io_terminal (const char *terminal_name) | |
174 | { | |
175 | if (inferior_io_terminal) | |
176 | xfree (inferior_io_terminal); | |
177 | ||
178 | if (!terminal_name) | |
179 | inferior_io_terminal = NULL; | |
180 | else | |
181 | inferior_io_terminal = savestring (terminal_name, strlen (terminal_name)); | |
182 | } | |
183 | ||
184 | const char * | |
185 | get_inferior_io_terminal (void) | |
186 | { | |
187 | return inferior_io_terminal; | |
188 | } | |
189 | ||
07091751 FN |
190 | char * |
191 | get_inferior_args (void) | |
192 | { | |
552c04a7 TT |
193 | if (inferior_argc != 0) |
194 | { | |
195 | char *n, *old; | |
196 | ||
197 | n = gdbarch_construct_inferior_arguments (current_gdbarch, | |
198 | inferior_argc, inferior_argv); | |
199 | old = set_inferior_args (n); | |
200 | xfree (old); | |
201 | } | |
202 | ||
203 | if (inferior_args == NULL) | |
204 | inferior_args = xstrdup (""); | |
205 | ||
07091751 FN |
206 | return inferior_args; |
207 | } | |
208 | ||
209 | char * | |
210 | set_inferior_args (char *newargs) | |
211 | { | |
212 | char *saved_args = inferior_args; | |
213 | ||
214 | inferior_args = newargs; | |
552c04a7 TT |
215 | inferior_argc = 0; |
216 | inferior_argv = 0; | |
07091751 FN |
217 | |
218 | return saved_args; | |
219 | } | |
c5aa993b | 220 | |
552c04a7 TT |
221 | void |
222 | set_inferior_args_vector (int argc, char **argv) | |
223 | { | |
224 | inferior_argc = argc; | |
225 | inferior_argv = argv; | |
226 | } | |
227 | ||
228 | /* Notice when `set args' is run. */ | |
229 | static void | |
230 | notice_args_set (char *args, int from_tty, struct cmd_list_element *c) | |
231 | { | |
232 | inferior_argc = 0; | |
233 | inferior_argv = 0; | |
234 | } | |
235 | ||
236 | /* Notice when `show args' is run. */ | |
237 | static void | |
b4b4ac0b AC |
238 | notice_args_read (struct ui_file *file, int from_tty, |
239 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 240 | { |
258c00cc TT |
241 | /* Note that we ignore the passed-in value in favor of computing it |
242 | directly. */ | |
243 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
244 | } |
245 | ||
c2a727fa TT |
246 | \f |
247 | /* Compute command-line string given argument vector. This does the | |
248 | same shell processing as fork_inferior. */ | |
c2a727fa TT |
249 | char * |
250 | construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv) | |
251 | { | |
252 | char *result; | |
253 | ||
254 | if (STARTUP_WITH_SHELL) | |
255 | { | |
256 | /* This holds all the characters considered special to the | |
257 | typical Unix shells. We include `^' because the SunOS | |
258 | /bin/sh treats it as a synonym for `|'. */ | |
259 | char *special = "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n"; | |
260 | int i; | |
261 | int length = 0; | |
262 | char *out, *cp; | |
263 | ||
264 | /* We over-compute the size. It shouldn't matter. */ | |
265 | for (i = 0; i < argc; ++i) | |
c2226152 | 266 | length += 3 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
267 | |
268 | result = (char *) xmalloc (length); | |
269 | out = result; | |
270 | ||
271 | for (i = 0; i < argc; ++i) | |
272 | { | |
273 | if (i > 0) | |
274 | *out++ = ' '; | |
275 | ||
03c6228e AS |
276 | /* Need to handle empty arguments specially. */ |
277 | if (argv[i][0] == '\0') | |
c2a727fa | 278 | { |
03c6228e AS |
279 | *out++ = '\''; |
280 | *out++ = '\''; | |
281 | } | |
282 | else | |
283 | { | |
284 | for (cp = argv[i]; *cp; ++cp) | |
285 | { | |
c2226152 AS |
286 | if (*cp == '\n') |
287 | { | |
288 | /* A newline cannot be quoted with a backslash (it | |
289 | just disappears), only by putting it inside | |
290 | quotes. */ | |
291 | *out++ = '\''; | |
292 | *out++ = '\n'; | |
293 | *out++ = '\''; | |
294 | } | |
295 | else | |
296 | { | |
297 | if (strchr (special, *cp) != NULL) | |
298 | *out++ = '\\'; | |
299 | *out++ = *cp; | |
300 | } | |
03c6228e | 301 | } |
c2a727fa TT |
302 | } |
303 | } | |
304 | *out = '\0'; | |
305 | } | |
306 | else | |
307 | { | |
308 | /* In this case we can't handle arguments that contain spaces, | |
309 | tabs, or newlines -- see breakup_args(). */ | |
310 | int i; | |
311 | int length = 0; | |
312 | ||
313 | for (i = 0; i < argc; ++i) | |
314 | { | |
315 | char *cp = strchr (argv[i], ' '); | |
316 | if (cp == NULL) | |
317 | cp = strchr (argv[i], '\t'); | |
318 | if (cp == NULL) | |
319 | cp = strchr (argv[i], '\n'); | |
320 | if (cp != NULL) | |
8a3fe4f8 | 321 | error (_("can't handle command-line argument containing whitespace")); |
c2a727fa TT |
322 | length += strlen (argv[i]) + 1; |
323 | } | |
324 | ||
325 | result = (char *) xmalloc (length); | |
326 | result[0] = '\0'; | |
327 | for (i = 0; i < argc; ++i) | |
328 | { | |
329 | if (i > 0) | |
330 | strcat (result, " "); | |
331 | strcat (result, argv[i]); | |
332 | } | |
333 | } | |
334 | ||
335 | return result; | |
336 | } | |
552c04a7 TT |
337 | \f |
338 | ||
43ff13b4 JM |
339 | /* This function detects whether or not a '&' character (indicating |
340 | background execution) has been added as *the last* of the arguments ARGS | |
341 | of a command. If it has, it removes it and returns 1. Otherwise it | |
342 | does nothing and returns 0. */ | |
c5aa993b | 343 | static int |
fba45db2 | 344 | strip_bg_char (char **args) |
43ff13b4 JM |
345 | { |
346 | char *p = NULL; | |
c5aa993b | 347 | |
9846de1b | 348 | p = strchr (*args, '&'); |
c5aa993b | 349 | |
9846de1b | 350 | if (p) |
43ff13b4 JM |
351 | { |
352 | if (p == (*args + strlen (*args) - 1)) | |
353 | { | |
c5aa993b | 354 | if (strlen (*args) > 1) |
43ff13b4 JM |
355 | { |
356 | do | |
357 | p--; | |
358 | while (*p == ' ' || *p == '\t'); | |
359 | *(p + 1) = '\0'; | |
360 | } | |
361 | else | |
362 | *args = 0; | |
363 | return 1; | |
364 | } | |
365 | } | |
366 | return 0; | |
367 | } | |
368 | ||
c906108c | 369 | void |
fba45db2 | 370 | tty_command (char *file, int from_tty) |
c906108c SS |
371 | { |
372 | if (file == 0) | |
e2e0b3e5 | 373 | error_no_arg (_("terminal name for running target process")); |
c906108c | 374 | |
3cb3b8df | 375 | set_inferior_io_terminal (file); |
c906108c SS |
376 | } |
377 | ||
281b533b DJ |
378 | /* Common actions to take after creating any sort of inferior, by any |
379 | means (running, attaching, connecting, et cetera). The target | |
380 | should be stopped. */ | |
381 | ||
382 | void | |
383 | post_create_inferior (struct target_ops *target, int from_tty) | |
384 | { | |
b79599ff DP |
385 | /* Be sure we own the terminal in case write operations are performed. */ |
386 | target_terminal_ours (); | |
387 | ||
424163ea DJ |
388 | /* If the target hasn't taken care of this already, do it now. |
389 | Targets which need to access registers during to_open, | |
390 | to_create_inferior, or to_attach should do it earlier; but many | |
391 | don't need to. */ | |
392 | target_find_description (); | |
393 | ||
50c71eaf PA |
394 | /* If the solist is global across processes, there's no need to |
395 | refetch it here. */ | |
396 | if (exec_bfd && !gdbarch_has_global_solist (target_gdbarch)) | |
9353355f DJ |
397 | { |
398 | /* Sometimes the platform-specific hook loads initial shared | |
399 | libraries, and sometimes it doesn't. Try to do so first, so | |
de1b3c3d PA |
400 | that we can add them with the correct value for FROM_TTY. |
401 | If we made all the inferior hook methods consistent, | |
402 | this call could be removed. */ | |
9353355f DJ |
403 | #ifdef SOLIB_ADD |
404 | SOLIB_ADD (NULL, from_tty, target, auto_solib_add); | |
405 | #else | |
406 | solib_add (NULL, from_tty, target, auto_solib_add); | |
407 | #endif | |
50c71eaf | 408 | } |
9353355f | 409 | |
50c71eaf PA |
410 | if (exec_bfd) |
411 | { | |
9353355f DJ |
412 | /* Create the hooks to handle shared library load and unload |
413 | events. */ | |
414 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 415 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f DJ |
416 | #else |
417 | solib_create_inferior_hook (); | |
418 | #endif | |
9353355f DJ |
419 | } |
420 | ||
281b533b DJ |
421 | observer_notify_inferior_created (target, from_tty); |
422 | } | |
423 | ||
a4d5f2e0 JB |
424 | /* Kill the inferior if already running. This function is designed |
425 | to be called when we are about to start the execution of the program | |
426 | from the beginning. Ask the user to confirm that he wants to restart | |
427 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 428 | |
8edfe269 | 429 | static void |
a4d5f2e0 JB |
430 | kill_if_already_running (int from_tty) |
431 | { | |
39f77062 | 432 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 433 | { |
8edfe269 DJ |
434 | /* Bail out before killing the program if we will not be able to |
435 | restart it. */ | |
436 | target_require_runnable (); | |
437 | ||
adf40b2e | 438 | if (from_tty |
9e2f0ad4 HZ |
439 | && !query (_("The program being debugged has been started already.\n\ |
440 | Start it from the beginning? "))) | |
8a3fe4f8 | 441 | error (_("Program not restarted.")); |
c906108c | 442 | target_kill (); |
c906108c | 443 | } |
a4d5f2e0 JB |
444 | } |
445 | ||
f67a969f JB |
446 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
447 | a temporary breakpoint at the begining of the main program before | |
448 | running the program. */ | |
449 | ||
a4d5f2e0 | 450 | static void |
f67a969f | 451 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
452 | { |
453 | char *exec_file; | |
29f49a6a PA |
454 | struct cleanup *old_chain; |
455 | ptid_t ptid; | |
c906108c | 456 | |
a4d5f2e0 JB |
457 | dont_repeat (); |
458 | ||
459 | kill_if_already_running (from_tty); | |
3c35e65b UW |
460 | |
461 | init_wait_for_inferior (); | |
c906108c SS |
462 | clear_breakpoint_hit_counts (); |
463 | ||
fd79ecee DJ |
464 | /* Clean up any leftovers from other runs. Some other things from |
465 | this function should probably be moved into target_pre_inferior. */ | |
466 | target_pre_inferior (from_tty); | |
467 | ||
39ad761d JB |
468 | /* The comment here used to read, "The exec file is re-read every |
469 | time we do a generic_mourn_inferior, so we just have to worry | |
470 | about the symbol file." The `generic_mourn_inferior' function | |
471 | gets called whenever the program exits. However, suppose the | |
472 | program exits, and *then* the executable file changes? We need | |
473 | to check again here. Since reopen_exec_file doesn't do anything | |
474 | if the timestamp hasn't changed, I don't see the harm. */ | |
475 | reopen_exec_file (); | |
c906108c SS |
476 | reread_symbols (); |
477 | ||
f67a969f JB |
478 | /* Insert the temporary breakpoint if a location was specified. */ |
479 | if (tbreak_at_main) | |
480 | tbreak_command (main_name (), 0); | |
481 | ||
39ad761d JB |
482 | exec_file = (char *) get_exec_file (0); |
483 | ||
9908b566 VP |
484 | if (non_stop && !target_supports_non_stop ()) |
485 | error (_("The target does not support running in non-stop mode.")); | |
486 | ||
c906108c SS |
487 | /* We keep symbols from add-symbol-file, on the grounds that the |
488 | user might want to add some symbols before running the program | |
489 | (right?). But sometimes (dynamic loading where the user manually | |
490 | introduces the new symbols with add-symbol-file), the code which | |
491 | the symbols describe does not persist between runs. Currently | |
492 | the user has to manually nuke all symbols between runs if they | |
493 | want them to go away (PR 2207). This is probably reasonable. */ | |
494 | ||
43ff13b4 | 495 | if (!args) |
6426a772 | 496 | { |
362646f5 | 497 | if (target_can_async_p ()) |
6426a772 JM |
498 | async_disable_stdin (); |
499 | } | |
43ff13b4 | 500 | else |
c906108c | 501 | { |
43ff13b4 JM |
502 | int async_exec = strip_bg_char (&args); |
503 | ||
504 | /* If we get a request for running in the bg but the target | |
505 | doesn't support it, error out. */ | |
362646f5 | 506 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 507 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
508 | |
509 | /* If we don't get a request of running in the bg, then we need | |
c5aa993b | 510 | to simulate synchronous (fg) execution. */ |
362646f5 | 511 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
512 | { |
513 | /* Simulate synchronous execution */ | |
6426a772 | 514 | async_disable_stdin (); |
43ff13b4 JM |
515 | } |
516 | ||
517 | /* If there were other args, beside '&', process them. */ | |
518 | if (args) | |
519 | { | |
07091751 FN |
520 | char *old_args = set_inferior_args (xstrdup (args)); |
521 | xfree (old_args); | |
43ff13b4 | 522 | } |
c906108c SS |
523 | } |
524 | ||
525 | if (from_tty) | |
526 | { | |
8b93c638 JM |
527 | ui_out_field_string (uiout, NULL, "Starting program"); |
528 | ui_out_text (uiout, ": "); | |
529 | if (exec_file) | |
530 | ui_out_field_string (uiout, "execfile", exec_file); | |
531 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
532 | /* We call get_inferior_args() because we might need to compute |
533 | the value now. */ | |
534 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
535 | ui_out_text (uiout, "\n"); |
536 | ui_out_flush (uiout); | |
c906108c SS |
537 | } |
538 | ||
552c04a7 TT |
539 | /* We call get_inferior_args() because we might need to compute |
540 | the value now. */ | |
541 | target_create_inferior (exec_file, get_inferior_args (), | |
c27cda74 | 542 | environ_vector (inferior_environ), from_tty); |
281b533b | 543 | |
29f49a6a PA |
544 | /* We're starting off a new process. When we get out of here, in |
545 | non-stop mode, finish the state of all threads of that process, | |
546 | but leave other threads alone, as they may be stopped in internal | |
547 | events --- the frontend shouldn't see them as stopped. In | |
548 | all-stop, always finish the state of all threads, as we may be | |
549 | resuming more than just the new process. */ | |
550 | if (non_stop) | |
551 | ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
552 | else | |
553 | ptid = minus_one_ptid; | |
554 | old_chain = make_cleanup (finish_thread_state_cleanup, &ptid); | |
555 | ||
de1b3c3d PA |
556 | /* Pass zero for FROM_TTY, because at this point the "run" command |
557 | has done its thing; now we are setting up the running program. */ | |
558 | post_create_inferior (¤t_target, 0); | |
281b533b DJ |
559 | |
560 | /* Start the target running. */ | |
561 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
c906108c | 562 | |
29f49a6a PA |
563 | /* Since there was no error, there's no need to finish the thread |
564 | states here. */ | |
565 | discard_cleanups (old_chain); | |
566 | } | |
c906108c | 567 | |
f67a969f JB |
568 | static void |
569 | run_command (char *args, int from_tty) | |
570 | { | |
571 | run_command_1 (args, from_tty, 0); | |
572 | } | |
573 | ||
c906108c | 574 | static void |
fba45db2 | 575 | run_no_args_command (char *args, int from_tty) |
c906108c | 576 | { |
07091751 FN |
577 | char *old_args = set_inferior_args (xstrdup ("")); |
578 | xfree (old_args); | |
c906108c | 579 | } |
c906108c | 580 | \f |
c5aa993b | 581 | |
a4d5f2e0 JB |
582 | /* Start the execution of the program up until the beginning of the main |
583 | program. */ | |
584 | ||
585 | static void | |
586 | start_command (char *args, int from_tty) | |
587 | { | |
588 | /* Some languages such as Ada need to search inside the program | |
589 | minimal symbols for the location where to put the temporary | |
590 | breakpoint before starting. */ | |
591 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 592 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 593 | |
f67a969f JB |
594 | /* Run the program until reaching the main procedure... */ |
595 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
596 | } |
597 | ||
8cae4b3f PA |
598 | static int |
599 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
600 | { | |
74531fed PA |
601 | /* We go through all threads individually instead of compressing |
602 | into a single target `resume_all' request, because some threads | |
603 | may be stopped in internal breakpoints/events, or stopped waiting | |
604 | for its turn in the displaced stepping queue (that is, they are | |
605 | running && !executing). The target side has no idea about why | |
606 | the thread is stopped, so a `resume_all' command would resume too | |
607 | much. If/when GDB gains a way to tell the target `hold this | |
608 | thread stopped until I say otherwise', then we can optimize | |
609 | this. */ | |
4f8d22e3 | 610 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
611 | return 0; |
612 | ||
dcf4fbde | 613 | switch_to_thread (thread->ptid); |
8cae4b3f PA |
614 | clear_proceed_status (); |
615 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
616 | return 0; | |
617 | } | |
618 | ||
d729566a PA |
619 | void |
620 | ensure_valid_thread (void) | |
621 | { | |
622 | if (ptid_equal (inferior_ptid, null_ptid) | |
623 | || is_exited (inferior_ptid)) | |
624 | error (_("\ | |
625 | Cannot execute this command without a live selected thread.")); | |
626 | } | |
627 | ||
77ebaa5a VP |
628 | void |
629 | continue_1 (int all_threads) | |
630 | { | |
3d488bfc PA |
631 | ERROR_NO_INFERIOR; |
632 | ||
77ebaa5a VP |
633 | if (non_stop && all_threads) |
634 | { | |
635 | /* Don't error out if the current thread is running, because | |
636 | there may be other stopped threads. */ | |
637 | struct cleanup *old_chain; | |
638 | ||
639 | /* Backup current thread and selected frame. */ | |
640 | old_chain = make_cleanup_restore_current_thread (); | |
641 | ||
642 | iterate_over_threads (proceed_thread_callback, NULL); | |
643 | ||
644 | /* Restore selected ptid. */ | |
645 | do_cleanups (old_chain); | |
646 | } | |
647 | else | |
648 | { | |
d729566a | 649 | ensure_valid_thread (); |
77ebaa5a VP |
650 | ensure_not_running (); |
651 | clear_proceed_status (); | |
652 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
653 | } | |
654 | } | |
655 | ||
8cae4b3f | 656 | /* continue [-a] [proceed-count] [&] */ |
c906108c | 657 | void |
8cae4b3f | 658 | continue_command (char *args, int from_tty) |
c906108c | 659 | { |
c5aa993b | 660 | int async_exec = 0; |
8cae4b3f | 661 | int all_threads = 0; |
c906108c SS |
662 | ERROR_NO_INFERIOR; |
663 | ||
43ff13b4 | 664 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
665 | if (args != NULL) |
666 | async_exec = strip_bg_char (&args); | |
43ff13b4 JM |
667 | |
668 | /* If we must run in the background, but the target can't do it, | |
669 | error out. */ | |
362646f5 | 670 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 671 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
672 | |
673 | /* If we are not asked to run in the bg, then prepare to run in the | |
674 | foreground, synchronously. */ | |
362646f5 | 675 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 676 | { |
43ff13b4 | 677 | /* Simulate synchronous execution */ |
6426a772 | 678 | async_disable_stdin (); |
43ff13b4 | 679 | } |
c906108c | 680 | |
8cae4b3f PA |
681 | if (args != NULL) |
682 | { | |
683 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
684 | { | |
685 | all_threads = 1; | |
686 | args += sizeof ("-a") - 1; | |
687 | if (*args == '\0') | |
688 | args = NULL; | |
689 | } | |
690 | } | |
691 | ||
692 | if (!non_stop && all_threads) | |
693 | error (_("`-a' is meaningless in all-stop mode.")); | |
694 | ||
695 | if (args != NULL && all_threads) | |
696 | error (_("\ | |
697 | Can't resume all threads and specify proceed count simultaneously.")); | |
698 | ||
699 | /* If we have an argument left, set proceed count of breakpoint we | |
700 | stopped at. */ | |
701 | if (args != NULL) | |
c906108c | 702 | { |
347bddb7 | 703 | bpstat bs = NULL; |
8671a17b PA |
704 | int num, stat; |
705 | int stopped = 0; | |
347bddb7 PA |
706 | struct thread_info *tp; |
707 | ||
708 | if (non_stop) | |
709 | tp = find_thread_pid (inferior_ptid); | |
710 | else | |
711 | { | |
712 | ptid_t last_ptid; | |
713 | struct target_waitstatus ws; | |
714 | ||
715 | get_last_target_status (&last_ptid, &ws); | |
716 | tp = find_thread_pid (last_ptid); | |
717 | } | |
718 | if (tp != NULL) | |
719 | bs = tp->stop_bpstat; | |
8671a17b PA |
720 | |
721 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
722 | if (stat > 0) | |
723 | { | |
724 | set_ignore_count (num, | |
8cae4b3f | 725 | parse_and_eval_long (args) - 1, |
8671a17b PA |
726 | from_tty); |
727 | /* set_ignore_count prints a message ending with a period. | |
728 | So print two spaces before "Continuing.". */ | |
729 | if (from_tty) | |
730 | printf_filtered (" "); | |
731 | stopped = 1; | |
732 | } | |
733 | ||
734 | if (!stopped && from_tty) | |
c906108c SS |
735 | { |
736 | printf_filtered | |
737 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
738 | } | |
c906108c SS |
739 | } |
740 | ||
741 | if (from_tty) | |
a3f17187 | 742 | printf_filtered (_("Continuing.\n")); |
c906108c | 743 | |
77ebaa5a | 744 | continue_1 (all_threads); |
c906108c SS |
745 | } |
746 | \f | |
747 | /* Step until outside of current statement. */ | |
748 | ||
c906108c | 749 | static void |
fba45db2 | 750 | step_command (char *count_string, int from_tty) |
c906108c SS |
751 | { |
752 | step_1 (0, 0, count_string); | |
753 | } | |
754 | ||
755 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
756 | ||
c906108c | 757 | static void |
fba45db2 | 758 | next_command (char *count_string, int from_tty) |
c906108c SS |
759 | { |
760 | step_1 (1, 0, count_string); | |
761 | } | |
762 | ||
763 | /* Likewise, but step only one instruction. */ | |
764 | ||
c906108c | 765 | void |
fba45db2 | 766 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
767 | { |
768 | step_1 (0, 1, count_string); | |
769 | } | |
770 | ||
c906108c | 771 | void |
fba45db2 | 772 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
773 | { |
774 | step_1 (1, 1, count_string); | |
775 | } | |
776 | ||
74b7792f | 777 | static void |
611c83ae | 778 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 779 | { |
611c83ae PA |
780 | int thread = * (int *) arg; |
781 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
782 | } |
783 | ||
c906108c | 784 | static void |
fba45db2 | 785 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 786 | { |
52f0bd74 | 787 | int count = 1; |
c906108c | 788 | struct frame_info *frame; |
f107f563 | 789 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 790 | int async_exec = 0; |
b3dc826b | 791 | int thread = -1; |
c5aa993b | 792 | |
c906108c | 793 | ERROR_NO_INFERIOR; |
d729566a | 794 | ensure_valid_thread (); |
94cc34af | 795 | ensure_not_running (); |
43ff13b4 JM |
796 | |
797 | if (count_string) | |
798 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 799 | |
43ff13b4 JM |
800 | /* If we get a request for running in the bg but the target |
801 | doesn't support it, error out. */ | |
362646f5 | 802 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 803 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
804 | |
805 | /* If we don't get a request of running in the bg, then we need | |
806 | to simulate synchronous (fg) execution. */ | |
362646f5 | 807 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
808 | { |
809 | /* Simulate synchronous execution */ | |
6426a772 | 810 | async_disable_stdin (); |
43ff13b4 JM |
811 | } |
812 | ||
bb518678 | 813 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 814 | |
c5aa993b | 815 | if (!single_inst || skip_subroutines) /* leave si command alone */ |
c906108c | 816 | { |
611c83ae | 817 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 818 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae PA |
819 | |
820 | set_longjmp_breakpoint (); | |
821 | ||
b3dc826b | 822 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
823 | } |
824 | ||
37d94800 | 825 | /* In synchronous case, all is well; each step_once call will step once. */ |
362646f5 | 826 | if (!target_can_async_p ()) |
c2d11a7d JM |
827 | { |
828 | for (; count > 0; count--) | |
829 | { | |
37d94800 PA |
830 | struct thread_info *tp; |
831 | step_once (skip_subroutines, single_inst, count, thread); | |
c2d11a7d | 832 | |
37d94800 PA |
833 | if (target_has_execution |
834 | && !ptid_equal (inferior_ptid, null_ptid)) | |
835 | tp = inferior_thread (); | |
c2d11a7d | 836 | else |
37d94800 PA |
837 | tp = NULL; |
838 | ||
839 | if (!tp || !tp->stop_step || !tp->step_multi) | |
c2d11a7d | 840 | { |
37d94800 PA |
841 | /* If we stopped for some reason that is not stepping |
842 | there are no further steps to make. */ | |
843 | if (tp) | |
844 | tp->step_multi = 0; | |
845 | break; | |
c2d11a7d | 846 | } |
c2d11a7d JM |
847 | } |
848 | ||
f107f563 | 849 | do_cleanups (cleanups); |
c2d11a7d | 850 | } |
c2d11a7d JM |
851 | else |
852 | { | |
37d94800 PA |
853 | /* In the case of an asynchronous target things get complicated; |
854 | do only one step for now, before returning control to the | |
855 | event loop. Let the continuation figure out how many other | |
856 | steps we need to do, and handle them one at the time, through | |
857 | step_once. */ | |
b3dc826b | 858 | step_once (skip_subroutines, single_inst, count, thread); |
37d94800 | 859 | |
611c83ae | 860 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
861 | disable the longjmp breakpoint as appropriate. */ |
862 | discard_cleanups (cleanups); | |
c906108c | 863 | } |
c2d11a7d | 864 | } |
c906108c | 865 | |
bfec99b2 PA |
866 | struct step_1_continuation_args |
867 | { | |
868 | int count; | |
869 | int skip_subroutines; | |
870 | int single_inst; | |
871 | int thread; | |
872 | }; | |
873 | ||
c2d11a7d JM |
874 | /* Called after we are done with one step operation, to check whether |
875 | we need to step again, before we print the prompt and return control | |
876 | to the user. If count is > 1, we will need to do one more call to | |
877 | proceed(), via step_once(). Basically it is like step_once and | |
878 | step_1_continuation are co-recursive. */ | |
879 | static void | |
604ead4a | 880 | step_1_continuation (void *args) |
c2d11a7d | 881 | { |
bfec99b2 | 882 | struct step_1_continuation_args *a = args; |
f13468d9 | 883 | |
af679fd0 | 884 | if (target_has_execution) |
f13468d9 | 885 | { |
af679fd0 PA |
886 | struct thread_info *tp; |
887 | ||
888 | tp = inferior_thread (); | |
414c69f7 | 889 | if (tp->step_multi && tp->stop_step) |
af679fd0 PA |
890 | { |
891 | /* There are more steps to make, and we did stop due to | |
892 | ending a stepping range. Do another step. */ | |
37d94800 PA |
893 | step_once (a->skip_subroutines, a->single_inst, |
894 | a->count - 1, a->thread); | |
af679fd0 PA |
895 | return; |
896 | } | |
897 | tp->step_multi = 0; | |
f107f563 | 898 | } |
af679fd0 PA |
899 | |
900 | /* We either stopped for some reason that is not stepping, or there | |
901 | are no further steps to make. Cleanup. */ | |
902 | if (!a->single_inst || a->skip_subroutines) | |
903 | delete_longjmp_breakpoint (a->thread); | |
c2d11a7d JM |
904 | } |
905 | ||
37d94800 PA |
906 | /* Do just one step operation. This is useful to implement the 'step |
907 | n' kind of commands. In case of asynchronous targets, we will have | |
908 | to set up a continuation to be done after the target stops (after | |
909 | this one step). For synch targets, the caller handles further | |
910 | stepping. */ | |
911 | ||
912 | static void | |
611c83ae | 913 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 914 | { |
0d06e24b | 915 | struct frame_info *frame; |
c2d11a7d JM |
916 | |
917 | if (count > 0) | |
c906108c | 918 | { |
4e1c45ea PA |
919 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
920 | the longjmp breakpoint was not required. Use the | |
921 | INFERIOR_PTID thread instead, which is the same thread when | |
922 | THREAD is set. */ | |
923 | struct thread_info *tp = inferior_thread (); | |
c906108c SS |
924 | clear_proceed_status (); |
925 | ||
926 | frame = get_current_frame (); | |
4e1c45ea | 927 | tp->step_frame_id = get_frame_id (frame); |
c906108c | 928 | |
c5aa993b | 929 | if (!single_inst) |
c906108c | 930 | { |
1641cfcc PA |
931 | CORE_ADDR pc; |
932 | ||
933 | pc = get_frame_pc (frame); | |
934 | find_pc_line_pc_range (pc, | |
4e1c45ea | 935 | &tp->step_range_start, &tp->step_range_end); |
5fbbeb29 CF |
936 | |
937 | /* If we have no line info, switch to stepi mode. */ | |
4e1c45ea | 938 | if (tp->step_range_end == 0 && step_stop_if_no_debug) |
5fbbeb29 | 939 | { |
4e1c45ea | 940 | tp->step_range_start = tp->step_range_end = 1; |
5fbbeb29 | 941 | } |
4e1c45ea | 942 | else if (tp->step_range_end == 0) |
c906108c SS |
943 | { |
944 | char *name; | |
1641cfcc | 945 | if (find_pc_partial_function (pc, &name, |
4e1c45ea PA |
946 | &tp->step_range_start, |
947 | &tp->step_range_end) == 0) | |
8a3fe4f8 | 948 | error (_("Cannot find bounds of current function")); |
c906108c SS |
949 | |
950 | target_terminal_ours (); | |
a3f17187 | 951 | printf_filtered (_("\ |
c906108c | 952 | Single stepping until exit from function %s, \n\ |
a3f17187 | 953 | which has no line number information.\n"), name); |
c906108c SS |
954 | } |
955 | } | |
956 | else | |
957 | { | |
958 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
4e1c45ea | 959 | tp->step_range_start = tp->step_range_end = 1; |
c906108c SS |
960 | if (!skip_subroutines) |
961 | /* It is stepi. | |
962 | Don't step over function calls, not even to functions lacking | |
963 | line numbers. */ | |
078130d0 | 964 | tp->step_over_calls = STEP_OVER_NONE; |
c906108c SS |
965 | } |
966 | ||
967 | if (skip_subroutines) | |
078130d0 | 968 | tp->step_over_calls = STEP_OVER_ALL; |
c906108c | 969 | |
95e54da7 | 970 | tp->step_multi = (count > 1); |
f107f563 | 971 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
bfec99b2 | 972 | |
37d94800 PA |
973 | /* For async targets, register a continuation to do any |
974 | additional steps. For sync targets, the caller will handle | |
975 | further stepping. */ | |
976 | if (target_can_async_p ()) | |
977 | { | |
978 | struct step_1_continuation_args *args; | |
979 | ||
980 | args = xmalloc (sizeof (*args)); | |
981 | args->skip_subroutines = skip_subroutines; | |
982 | args->single_inst = single_inst; | |
983 | args->count = count; | |
984 | args->thread = thread; | |
985 | ||
986 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); | |
987 | } | |
c906108c | 988 | } |
c906108c | 989 | } |
c2d11a7d | 990 | |
c906108c SS |
991 | \f |
992 | /* Continue program at specified address. */ | |
993 | ||
994 | static void | |
fba45db2 | 995 | jump_command (char *arg, int from_tty) |
c906108c | 996 | { |
52f0bd74 | 997 | CORE_ADDR addr; |
c906108c SS |
998 | struct symtabs_and_lines sals; |
999 | struct symtab_and_line sal; | |
1000 | struct symbol *fn; | |
1001 | struct symbol *sfn; | |
43ff13b4 | 1002 | int async_exec = 0; |
c5aa993b | 1003 | |
c906108c | 1004 | ERROR_NO_INFERIOR; |
d729566a | 1005 | ensure_valid_thread (); |
94cc34af | 1006 | ensure_not_running (); |
c906108c | 1007 | |
43ff13b4 JM |
1008 | /* Find out whether we must run in the background. */ |
1009 | if (arg != NULL) | |
1010 | async_exec = strip_bg_char (&arg); | |
1011 | ||
1012 | /* If we must run in the background, but the target can't do it, | |
1013 | error out. */ | |
362646f5 | 1014 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1015 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1016 | |
c906108c | 1017 | if (!arg) |
e2e0b3e5 | 1018 | error_no_arg (_("starting address")); |
c906108c SS |
1019 | |
1020 | sals = decode_line_spec_1 (arg, 1); | |
1021 | if (sals.nelts != 1) | |
1022 | { | |
8a3fe4f8 | 1023 | error (_("Unreasonable jump request")); |
c906108c SS |
1024 | } |
1025 | ||
1026 | sal = sals.sals[0]; | |
b8c9b27d | 1027 | xfree (sals.sals); |
c906108c SS |
1028 | |
1029 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1030 | error (_("No source file has been specified.")); |
c906108c | 1031 | |
c5aa993b | 1032 | resolve_sal_pc (&sal); /* May error out */ |
c906108c SS |
1033 | |
1034 | /* See if we are trying to jump to another function. */ | |
1035 | fn = get_frame_function (get_current_frame ()); | |
1036 | sfn = find_pc_function (sal.pc); | |
1037 | if (fn != NULL && sfn != fn) | |
1038 | { | |
9e2f0ad4 | 1039 | if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal.line, |
de5ad195 | 1040 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1041 | { |
8a3fe4f8 | 1042 | error (_("Not confirmed.")); |
c906108c SS |
1043 | /* NOTREACHED */ |
1044 | } | |
1045 | } | |
1046 | ||
c5aa993b | 1047 | if (sfn != NULL) |
c906108c SS |
1048 | { |
1049 | fixup_symbol_section (sfn, 0); | |
714835d5 UW |
1050 | if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn)) && |
1051 | !section_is_mapped (SYMBOL_OBJ_SECTION (sfn))) | |
c906108c | 1052 | { |
9e2f0ad4 | 1053 | if (!query (_("WARNING!!! Destination is in unmapped overlay! Jump anyway? "))) |
c906108c | 1054 | { |
8a3fe4f8 | 1055 | error (_("Not confirmed.")); |
c906108c SS |
1056 | /* NOTREACHED */ |
1057 | } | |
1058 | } | |
1059 | } | |
1060 | ||
c906108c SS |
1061 | addr = sal.pc; |
1062 | ||
1063 | if (from_tty) | |
1064 | { | |
a3f17187 | 1065 | printf_filtered (_("Continuing at ")); |
ed49a04f | 1066 | fputs_filtered (paddress (addr), gdb_stdout); |
c906108c SS |
1067 | printf_filtered (".\n"); |
1068 | } | |
1069 | ||
89113898 PA |
1070 | /* If we are not asked to run in the bg, then prepare to run in the |
1071 | foreground, synchronously. */ | |
1072 | if (!async_exec && target_can_async_p ()) | |
1073 | { | |
1074 | /* Simulate synchronous execution */ | |
1075 | async_disable_stdin (); | |
1076 | } | |
1077 | ||
c906108c SS |
1078 | clear_proceed_status (); |
1079 | proceed (addr, TARGET_SIGNAL_0, 0); | |
1080 | } | |
c906108c | 1081 | \f |
c5aa993b | 1082 | |
c906108c SS |
1083 | /* Go to line or address in current procedure */ |
1084 | static void | |
fba45db2 | 1085 | go_command (char *line_no, int from_tty) |
c906108c | 1086 | { |
c5aa993b | 1087 | if (line_no == (char *) NULL || !*line_no) |
f42429a6 | 1088 | printf_filtered (_("Usage: go <location>\n")); |
c906108c SS |
1089 | else |
1090 | { | |
b83266a0 SS |
1091 | tbreak_command (line_no, from_tty); |
1092 | jump_command (line_no, from_tty); | |
c906108c SS |
1093 | } |
1094 | } | |
c906108c | 1095 | \f |
c5aa993b | 1096 | |
c906108c SS |
1097 | /* Continue program giving it specified signal. */ |
1098 | ||
1099 | static void | |
fba45db2 | 1100 | signal_command (char *signum_exp, int from_tty) |
c906108c SS |
1101 | { |
1102 | enum target_signal oursig; | |
32c1e744 | 1103 | int async_exec = 0; |
c906108c SS |
1104 | |
1105 | dont_repeat (); /* Too dangerous. */ | |
1106 | ERROR_NO_INFERIOR; | |
d729566a | 1107 | ensure_valid_thread (); |
94cc34af | 1108 | ensure_not_running (); |
c906108c | 1109 | |
32c1e744 VP |
1110 | /* Find out whether we must run in the background. */ |
1111 | if (signum_exp != NULL) | |
1112 | async_exec = strip_bg_char (&signum_exp); | |
1113 | ||
1114 | /* If we must run in the background, but the target can't do it, | |
1115 | error out. */ | |
1116 | if (async_exec && !target_can_async_p ()) | |
1117 | error (_("Asynchronous execution not supported on this target.")); | |
1118 | ||
1119 | /* If we are not asked to run in the bg, then prepare to run in the | |
1120 | foreground, synchronously. */ | |
1121 | if (!async_exec && target_can_async_p ()) | |
1122 | { | |
1123 | /* Simulate synchronous execution. */ | |
1124 | async_disable_stdin (); | |
1125 | } | |
1126 | ||
c906108c | 1127 | if (!signum_exp) |
e2e0b3e5 | 1128 | error_no_arg (_("signal number")); |
c906108c SS |
1129 | |
1130 | /* It would be even slicker to make signal names be valid expressions, | |
1131 | (the type could be "enum $signal" or some such), then the user could | |
1132 | assign them to convenience variables. */ | |
1133 | oursig = target_signal_from_name (signum_exp); | |
1134 | ||
1135 | if (oursig == TARGET_SIGNAL_UNKNOWN) | |
1136 | { | |
1137 | /* No, try numeric. */ | |
bb518678 | 1138 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1139 | |
1140 | if (num == 0) | |
1141 | oursig = TARGET_SIGNAL_0; | |
1142 | else | |
1143 | oursig = target_signal_from_command (num); | |
1144 | } | |
1145 | ||
1146 | if (from_tty) | |
1147 | { | |
1148 | if (oursig == TARGET_SIGNAL_0) | |
a3f17187 | 1149 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1150 | else |
a3f17187 | 1151 | printf_filtered (_("Continuing with signal %s.\n"), |
c906108c SS |
1152 | target_signal_to_name (oursig)); |
1153 | } | |
1154 | ||
1155 | clear_proceed_status (); | |
a12cc160 | 1156 | proceed ((CORE_ADDR) -1, oursig, 0); |
c906108c SS |
1157 | } |
1158 | ||
c906108c SS |
1159 | /* Proceed until we reach a different source line with pc greater than |
1160 | our current one or exit the function. We skip calls in both cases. | |
1161 | ||
1162 | Note that eventually this command should probably be changed so | |
1163 | that only source lines are printed out when we hit the breakpoint | |
1164 | we set. This may involve changes to wait_for_inferior and the | |
1165 | proceed status code. */ | |
1166 | ||
c906108c | 1167 | static void |
fba45db2 | 1168 | until_next_command (int from_tty) |
c906108c SS |
1169 | { |
1170 | struct frame_info *frame; | |
1171 | CORE_ADDR pc; | |
1172 | struct symbol *func; | |
1173 | struct symtab_and_line sal; | |
4e1c45ea | 1174 | struct thread_info *tp = inferior_thread (); |
c5aa993b | 1175 | |
c906108c SS |
1176 | clear_proceed_status (); |
1177 | ||
1178 | frame = get_current_frame (); | |
1179 | ||
1180 | /* Step until either exited from this function or greater | |
1181 | than the current line (if in symbolic section) or pc (if | |
1182 | not). */ | |
1183 | ||
1c7819ef | 1184 | pc = get_frame_pc (frame); |
c906108c | 1185 | func = find_pc_function (pc); |
c5aa993b | 1186 | |
c906108c SS |
1187 | if (!func) |
1188 | { | |
1189 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1190 | |
c906108c | 1191 | if (msymbol == NULL) |
8a3fe4f8 | 1192 | error (_("Execution is not within a known function.")); |
c5aa993b | 1193 | |
4e1c45ea PA |
1194 | tp->step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1195 | tp->step_range_end = pc; | |
c906108c SS |
1196 | } |
1197 | else | |
1198 | { | |
1199 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1200 | |
4e1c45ea PA |
1201 | tp->step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1202 | tp->step_range_end = sal.end; | |
c906108c | 1203 | } |
c5aa993b | 1204 | |
078130d0 | 1205 | tp->step_over_calls = STEP_OVER_ALL; |
4e1c45ea | 1206 | tp->step_frame_id = get_frame_id (frame); |
c906108c | 1207 | |
af679fd0 | 1208 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1209 | |
2acceee2 | 1210 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
c906108c SS |
1211 | } |
1212 | ||
c5aa993b | 1213 | static void |
fba45db2 | 1214 | until_command (char *arg, int from_tty) |
c906108c | 1215 | { |
43ff13b4 JM |
1216 | int async_exec = 0; |
1217 | ||
c906108c | 1218 | if (!target_has_execution) |
8a3fe4f8 | 1219 | error (_("The program is not running.")); |
43ff13b4 JM |
1220 | |
1221 | /* Find out whether we must run in the background. */ | |
1222 | if (arg != NULL) | |
1223 | async_exec = strip_bg_char (&arg); | |
1224 | ||
1225 | /* If we must run in the background, but the target can't do it, | |
1226 | error out. */ | |
362646f5 | 1227 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1228 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1229 | |
1230 | /* If we are not asked to run in the bg, then prepare to run in the | |
1231 | foreground, synchronously. */ | |
362646f5 | 1232 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1233 | { |
43ff13b4 | 1234 | /* Simulate synchronous execution */ |
6426a772 | 1235 | async_disable_stdin (); |
43ff13b4 JM |
1236 | } |
1237 | ||
c906108c | 1238 | if (arg) |
ae66c1fc | 1239 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1240 | else |
1241 | until_next_command (from_tty); | |
1242 | } | |
ae66c1fc EZ |
1243 | |
1244 | static void | |
1245 | advance_command (char *arg, int from_tty) | |
1246 | { | |
1247 | int async_exec = 0; | |
1248 | ||
1249 | if (!target_has_execution) | |
8a3fe4f8 | 1250 | error (_("The program is not running.")); |
ae66c1fc EZ |
1251 | |
1252 | if (arg == NULL) | |
e2e0b3e5 | 1253 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1254 | |
1255 | /* Find out whether we must run in the background. */ | |
1256 | if (arg != NULL) | |
1257 | async_exec = strip_bg_char (&arg); | |
1258 | ||
1259 | /* If we must run in the background, but the target can't do it, | |
1260 | error out. */ | |
362646f5 | 1261 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1262 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1263 | |
1264 | /* If we are not asked to run in the bg, then prepare to run in the | |
1265 | foreground, synchronously. */ | |
362646f5 | 1266 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1267 | { |
1268 | /* Simulate synchronous execution. */ | |
1269 | async_disable_stdin (); | |
1270 | } | |
1271 | ||
1272 | until_break_command (arg, from_tty, 1); | |
1273 | } | |
c906108c | 1274 | \f |
f941662f MK |
1275 | /* Print the result of a function at the end of a 'finish' command. */ |
1276 | ||
11cf8741 | 1277 | static void |
c055b101 | 1278 | print_return_value (struct type *func_type, struct type *value_type) |
11cf8741 | 1279 | { |
31db7b6c | 1280 | struct gdbarch *gdbarch = current_gdbarch; |
bb472c1e MK |
1281 | struct cleanup *old_chain; |
1282 | struct ui_stream *stb; | |
44e5158b AC |
1283 | struct value *value; |
1284 | ||
181fc57c | 1285 | CHECK_TYPEDEF (value_type); |
44e5158b | 1286 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1287 | |
92ad9cd9 AC |
1288 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1289 | call, it's possible (with no help from the architecture vector) | |
1290 | to locate and return/print a "struct return" value. This is just | |
1291 | a more complicated case of what is already being done in in the | |
1292 | inferior function call code. In fact, when inferior function | |
1293 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1294 | |
c055b101 CV |
1295 | switch (gdbarch_return_value (gdbarch, func_type, value_type, |
1296 | NULL, NULL, NULL)) | |
44e5158b | 1297 | { |
750eb019 AC |
1298 | case RETURN_VALUE_REGISTER_CONVENTION: |
1299 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1300 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1301 | value = allocate_value (value_type); |
c055b101 | 1302 | gdbarch_return_value (gdbarch, func_type, value_type, stop_registers, |
990a07ab | 1303 | value_contents_raw (value), NULL); |
750eb019 AC |
1304 | break; |
1305 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1306 | value = NULL; | |
1307 | break; | |
1308 | default: | |
e2e0b3e5 | 1309 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1310 | } |
bb472c1e | 1311 | |
31db7b6c MK |
1312 | if (value) |
1313 | { | |
79a45b7d TT |
1314 | struct value_print_options opts; |
1315 | ||
31db7b6c | 1316 | /* Print it. */ |
1d751abe PA |
1317 | stb = ui_out_stream_new (uiout); |
1318 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
31db7b6c MK |
1319 | ui_out_text (uiout, "Value returned is "); |
1320 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1321 | record_latest_value (value)); | |
1322 | ui_out_text (uiout, " = "); | |
79a45b7d TT |
1323 | get_raw_print_options (&opts); |
1324 | value_print (value, stb->stream, &opts); | |
31db7b6c MK |
1325 | ui_out_field_stream (uiout, "return-value", stb); |
1326 | ui_out_text (uiout, "\n"); | |
1d751abe | 1327 | do_cleanups (old_chain); |
31db7b6c MK |
1328 | } |
1329 | else | |
1330 | { | |
1331 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1332 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1333 | ui_out_text (uiout, "."); | |
1334 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1335 | } |
11cf8741 JM |
1336 | } |
1337 | ||
43ff13b4 | 1338 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1339 | has stopped. In asynchronous mode, we wait for the target to stop |
1340 | in the call to poll or select in the event loop, so it is | |
1341 | impossible to do all the stuff as part of the finish_command | |
1342 | function itself. The only chance we have to complete this command | |
1343 | is in fetch_inferior_event, which is called by the event loop as | |
1344 | soon as it detects that the target has stopped. This function is | |
1345 | called via the cmd_continuation pointer. */ | |
1346 | ||
bfec99b2 | 1347 | struct finish_command_continuation_args |
43ff13b4 | 1348 | { |
43ff13b4 | 1349 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1350 | struct symbol *function; |
1351 | }; | |
c5aa993b | 1352 | |
bfec99b2 | 1353 | static void |
604ead4a | 1354 | finish_command_continuation (void *arg) |
bfec99b2 PA |
1355 | { |
1356 | struct finish_command_continuation_args *a = arg; | |
41d2bdb4 | 1357 | struct thread_info *tp = NULL; |
347bddb7 PA |
1358 | bpstat bs = NULL; |
1359 | ||
1360 | if (!ptid_equal (inferior_ptid, null_ptid) | |
1361 | && target_has_execution | |
1362 | && is_stopped (inferior_ptid)) | |
41d2bdb4 PA |
1363 | { |
1364 | tp = inferior_thread (); | |
1365 | bs = tp->stop_bpstat; | |
1366 | } | |
347bddb7 PA |
1367 | |
1368 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL | |
604ead4a | 1369 | && a->function != NULL) |
43ff13b4 | 1370 | { |
604ead4a | 1371 | struct type *value_type; |
bfec99b2 | 1372 | |
604ead4a PA |
1373 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); |
1374 | if (!value_type) | |
1375 | internal_error (__FILE__, __LINE__, | |
1376 | _("finish_command: function has no target type")); | |
f5871ec0 | 1377 | |
604ead4a PA |
1378 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
1379 | print_return_value (SYMBOL_TYPE (a->function), value_type); | |
43ff13b4 | 1380 | } |
f941662f | 1381 | |
604ead4a | 1382 | /* We suppress normal call of normal_stop observer and do it here so |
41d2bdb4 PA |
1383 | that the *stopped notification includes the return value. */ |
1384 | if (bs != NULL && tp->proceed_to_finish) | |
1385 | observer_notify_normal_stop (bs, 1 /* print frame */); | |
bfec99b2 | 1386 | delete_breakpoint (a->breakpoint); |
43ff13b4 JM |
1387 | } |
1388 | ||
604ead4a PA |
1389 | static void |
1390 | finish_command_continuation_free_arg (void *arg) | |
1391 | { | |
604ead4a PA |
1392 | xfree (arg); |
1393 | } | |
1394 | ||
b2175913 MS |
1395 | /* finish_backward -- helper function for finish_command. */ |
1396 | ||
1397 | static void | |
1398 | finish_backward (struct symbol *function) | |
1399 | { | |
1400 | struct symtab_and_line sal; | |
1401 | struct thread_info *tp = inferior_thread (); | |
1402 | struct breakpoint *breakpoint; | |
1403 | struct cleanup *old_chain; | |
1c7819ef | 1404 | CORE_ADDR pc; |
b2175913 MS |
1405 | CORE_ADDR func_addr; |
1406 | int back_up; | |
1407 | ||
1c7819ef PA |
1408 | pc = get_frame_pc (get_current_frame ()); |
1409 | ||
1410 | if (find_pc_partial_function (pc, NULL, &func_addr, NULL) == 0) | |
b2175913 MS |
1411 | internal_error (__FILE__, __LINE__, |
1412 | _("Finish: couldn't find function.")); | |
1413 | ||
1414 | sal = find_pc_line (func_addr, 0); | |
1415 | ||
1416 | /* We don't need a return value. */ | |
1417 | tp->proceed_to_finish = 0; | |
1418 | /* Special case: if we're sitting at the function entry point, | |
1419 | then all we need to do is take a reverse singlestep. We | |
1420 | don't need to set a breakpoint, and indeed it would do us | |
1421 | no good to do so. | |
1422 | ||
1423 | Note that this can only happen at frame #0, since there's | |
1424 | no way that a function up the stack can have a return address | |
1425 | that's equal to its entry point. */ | |
1426 | ||
1c7819ef | 1427 | if (sal.pc != pc) |
b2175913 MS |
1428 | { |
1429 | /* Set breakpoint and continue. */ | |
1430 | breakpoint = | |
1431 | set_momentary_breakpoint (sal, | |
1432 | get_frame_id (get_selected_frame (NULL)), | |
1433 | bp_breakpoint); | |
1434 | /* Tell the breakpoint to keep quiet. We won't be done | |
1435 | until we've done another reverse single-step. */ | |
1436 | make_breakpoint_silent (breakpoint); | |
1437 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1438 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
1439 | /* We will be stopped when proceed returns. */ | |
1440 | back_up = bpstat_find_breakpoint (tp->stop_bpstat, breakpoint) != NULL; | |
1441 | do_cleanups (old_chain); | |
1442 | } | |
1443 | else | |
1444 | back_up = 1; | |
1445 | if (back_up) | |
1446 | { | |
1447 | /* If in fact we hit the step-resume breakpoint (and not | |
1448 | some other breakpoint), then we're almost there -- | |
1449 | we just need to back up by one more single-step. */ | |
1450 | tp->step_range_start = tp->step_range_end = 1; | |
1451 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); | |
1452 | } | |
1453 | return; | |
1454 | } | |
1455 | ||
1456 | /* finish_forward -- helper function for finish_command. */ | |
1457 | ||
1458 | static void | |
1459 | finish_forward (struct symbol *function, struct frame_info *frame) | |
1460 | { | |
1461 | struct symtab_and_line sal; | |
1462 | struct thread_info *tp = inferior_thread (); | |
1463 | struct breakpoint *breakpoint; | |
1464 | struct cleanup *old_chain; | |
1465 | struct finish_command_continuation_args *cargs; | |
1466 | ||
1467 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1468 | sal.pc = get_frame_pc (frame); | |
1469 | ||
1470 | breakpoint = set_momentary_breakpoint (sal, get_frame_id (frame), | |
1471 | bp_finish); | |
1472 | ||
1473 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1474 | ||
1475 | tp->proceed_to_finish = 1; /* We want stop_registers, please... */ | |
b2175913 MS |
1476 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); |
1477 | ||
1478 | cargs = xmalloc (sizeof (*cargs)); | |
1479 | ||
1480 | cargs->breakpoint = breakpoint; | |
1481 | cargs->function = function; | |
1482 | add_continuation (tp, finish_command_continuation, cargs, | |
1483 | finish_command_continuation_free_arg); | |
1484 | ||
1485 | discard_cleanups (old_chain); | |
1486 | if (!target_can_async_p ()) | |
1487 | do_all_continuations (); | |
1488 | } | |
1489 | ||
f941662f MK |
1490 | /* "finish": Set a temporary breakpoint at the place the selected |
1491 | frame will return to, then continue. */ | |
c906108c SS |
1492 | |
1493 | static void | |
fba45db2 | 1494 | finish_command (char *arg, int from_tty) |
c906108c | 1495 | { |
52f0bd74 AC |
1496 | struct frame_info *frame; |
1497 | struct symbol *function; | |
43ff13b4 JM |
1498 | |
1499 | int async_exec = 0; | |
1500 | ||
f941662f | 1501 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1502 | if (arg != NULL) |
1503 | async_exec = strip_bg_char (&arg); | |
1504 | ||
1505 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1506 | error out. */ |
362646f5 | 1507 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1508 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1509 | |
b2175913 MS |
1510 | /* Don't try to async in reverse. */ |
1511 | if (async_exec && execution_direction == EXEC_REVERSE) | |
1512 | error (_("Asynchronous 'finish' not supported in reverse.")); | |
1513 | ||
43ff13b4 | 1514 | /* If we are not asked to run in the bg, then prepare to run in the |
f941662f | 1515 | foreground, synchronously. */ |
362646f5 | 1516 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1517 | { |
f941662f | 1518 | /* Simulate synchronous execution. */ |
6426a772 | 1519 | async_disable_stdin (); |
43ff13b4 | 1520 | } |
c906108c SS |
1521 | |
1522 | if (arg) | |
8a3fe4f8 | 1523 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1524 | if (!target_has_execution) |
8a3fe4f8 | 1525 | error (_("The program is not running.")); |
c906108c | 1526 | |
206415a3 | 1527 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1528 | if (frame == 0) |
8a3fe4f8 | 1529 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1530 | |
1531 | clear_proceed_status (); | |
1532 | ||
c906108c SS |
1533 | /* Find the function we will return from. */ |
1534 | ||
206415a3 | 1535 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1536 | |
f941662f MK |
1537 | /* Print info on the selected frame, including level number but not |
1538 | source. */ | |
c906108c SS |
1539 | if (from_tty) |
1540 | { | |
b2175913 MS |
1541 | if (execution_direction == EXEC_REVERSE) |
1542 | printf_filtered (_("Run back to call of ")); | |
1543 | else | |
1544 | printf_filtered (_("Run till exit from ")); | |
1545 | ||
b04f3ab4 | 1546 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1547 | } |
1548 | ||
b2175913 MS |
1549 | if (execution_direction == EXEC_REVERSE) |
1550 | finish_backward (function); | |
1551 | else | |
1552 | finish_forward (function, frame); | |
c906108c SS |
1553 | } |
1554 | \f | |
f941662f | 1555 | |
c906108c | 1556 | static void |
fba45db2 | 1557 | program_info (char *args, int from_tty) |
c906108c | 1558 | { |
347bddb7 PA |
1559 | bpstat bs; |
1560 | int num, stat; | |
1561 | struct thread_info *tp; | |
1562 | ptid_t ptid; | |
c5aa993b | 1563 | |
c906108c SS |
1564 | if (!target_has_execution) |
1565 | { | |
a3f17187 | 1566 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1567 | return; |
1568 | } | |
1569 | ||
347bddb7 PA |
1570 | if (non_stop) |
1571 | ptid = inferior_ptid; | |
1572 | else | |
1573 | { | |
1574 | struct target_waitstatus ws; | |
1575 | get_last_target_status (&ptid, &ws); | |
1576 | } | |
1577 | ||
1578 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1579 | error (_("Invalid selected thread.")); | |
1580 | else if (is_running (ptid)) | |
1581 | error (_("Selected thread is running.")); | |
1582 | ||
1583 | tp = find_thread_pid (ptid); | |
1584 | bs = tp->stop_bpstat; | |
1585 | stat = bpstat_num (&bs, &num); | |
1586 | ||
c906108c | 1587 | target_files_info (); |
616d7dd2 | 1588 | printf_filtered (_("Program stopped at %s.\n"), paddress (stop_pc)); |
414c69f7 | 1589 | if (tp->stop_step) |
a3f17187 | 1590 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1591 | else if (stat != 0) |
c906108c SS |
1592 | { |
1593 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1594 | isn't as strange as it seems. */ |
8671a17b | 1595 | while (stat != 0) |
c906108c | 1596 | { |
8671a17b | 1597 | if (stat < 0) |
c906108c | 1598 | { |
a3f17187 AC |
1599 | printf_filtered (_("\ |
1600 | It stopped at a breakpoint that has since been deleted.\n")); | |
c906108c SS |
1601 | } |
1602 | else | |
a3f17187 | 1603 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1604 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1605 | } |
1606 | } | |
2020b7ab | 1607 | else if (tp->stop_signal != TARGET_SIGNAL_0) |
c906108c | 1608 | { |
a3f17187 | 1609 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
2020b7ab PA |
1610 | target_signal_to_name (tp->stop_signal), |
1611 | target_signal_to_string (tp->stop_signal)); | |
c906108c SS |
1612 | } |
1613 | ||
1614 | if (!from_tty) | |
1615 | { | |
a3f17187 AC |
1616 | printf_filtered (_("\ |
1617 | Type \"info stack\" or \"info registers\" for more information.\n")); | |
c906108c SS |
1618 | } |
1619 | } | |
1620 | \f | |
1621 | static void | |
fba45db2 | 1622 | environment_info (char *var, int from_tty) |
c906108c SS |
1623 | { |
1624 | if (var) | |
1625 | { | |
aa1ee363 | 1626 | char *val = get_in_environ (inferior_environ, var); |
c906108c SS |
1627 | if (val) |
1628 | { | |
1629 | puts_filtered (var); | |
1630 | puts_filtered (" = "); | |
1631 | puts_filtered (val); | |
1632 | puts_filtered ("\n"); | |
1633 | } | |
1634 | else | |
1635 | { | |
1636 | puts_filtered ("Environment variable \""); | |
1637 | puts_filtered (var); | |
1638 | puts_filtered ("\" not defined.\n"); | |
1639 | } | |
1640 | } | |
1641 | else | |
1642 | { | |
aa1ee363 | 1643 | char **vector = environ_vector (inferior_environ); |
c906108c SS |
1644 | while (*vector) |
1645 | { | |
1646 | puts_filtered (*vector++); | |
1647 | puts_filtered ("\n"); | |
1648 | } | |
1649 | } | |
1650 | } | |
1651 | ||
1652 | static void | |
fba45db2 | 1653 | set_environment_command (char *arg, int from_tty) |
c906108c | 1654 | { |
52f0bd74 | 1655 | char *p, *val, *var; |
c906108c SS |
1656 | int nullset = 0; |
1657 | ||
1658 | if (arg == 0) | |
e2e0b3e5 | 1659 | error_no_arg (_("environment variable and value")); |
c906108c SS |
1660 | |
1661 | /* Find seperation between variable name and value */ | |
1662 | p = (char *) strchr (arg, '='); | |
1663 | val = (char *) strchr (arg, ' '); | |
1664 | ||
1665 | if (p != 0 && val != 0) | |
1666 | { | |
1667 | /* We have both a space and an equals. If the space is before the | |
c5aa993b JM |
1668 | equals, walk forward over the spaces til we see a nonspace |
1669 | (possibly the equals). */ | |
c906108c SS |
1670 | if (p > val) |
1671 | while (*val == ' ') | |
1672 | val++; | |
1673 | ||
1674 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1675 | take the char following the spaces. */ |
c906108c SS |
1676 | if (p > val) |
1677 | p = val - 1; | |
1678 | } | |
1679 | else if (val != 0 && p == 0) | |
1680 | p = val; | |
1681 | ||
1682 | if (p == arg) | |
e2e0b3e5 | 1683 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1684 | |
1685 | if (p == 0 || p[1] == 0) | |
1686 | { | |
1687 | nullset = 1; | |
1688 | if (p == 0) | |
1689 | p = arg + strlen (arg); /* So that savestring below will work */ | |
1690 | } | |
1691 | else | |
1692 | { | |
1693 | /* Not setting variable value to null */ | |
1694 | val = p + 1; | |
1695 | while (*val == ' ' || *val == '\t') | |
1696 | val++; | |
1697 | } | |
1698 | ||
c5aa993b JM |
1699 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1700 | p--; | |
c906108c SS |
1701 | |
1702 | var = savestring (arg, p - arg); | |
1703 | if (nullset) | |
1704 | { | |
a3f17187 AC |
1705 | printf_filtered (_("\ |
1706 | Setting environment variable \"%s\" to null value.\n"), | |
1707 | var); | |
c906108c SS |
1708 | set_in_environ (inferior_environ, var, ""); |
1709 | } | |
1710 | else | |
1711 | set_in_environ (inferior_environ, var, val); | |
b8c9b27d | 1712 | xfree (var); |
c906108c SS |
1713 | } |
1714 | ||
1715 | static void | |
fba45db2 | 1716 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1717 | { |
1718 | if (var == 0) | |
1719 | { | |
1720 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1721 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1722 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c SS |
1723 | { |
1724 | free_environ (inferior_environ); | |
1725 | inferior_environ = make_environ (); | |
1726 | } | |
1727 | } | |
1728 | else | |
1729 | unset_in_environ (inferior_environ, var); | |
1730 | } | |
1731 | ||
1732 | /* Handle the execution path (PATH variable) */ | |
1733 | ||
1734 | static const char path_var_name[] = "PATH"; | |
1735 | ||
c906108c | 1736 | static void |
fba45db2 | 1737 | path_info (char *args, int from_tty) |
c906108c SS |
1738 | { |
1739 | puts_filtered ("Executable and object file path: "); | |
1740 | puts_filtered (get_in_environ (inferior_environ, path_var_name)); | |
1741 | puts_filtered ("\n"); | |
1742 | } | |
1743 | ||
1744 | /* Add zero or more directories to the front of the execution path. */ | |
1745 | ||
1746 | static void | |
fba45db2 | 1747 | path_command (char *dirname, int from_tty) |
c906108c SS |
1748 | { |
1749 | char *exec_path; | |
1750 | char *env; | |
1751 | dont_repeat (); | |
1752 | env = get_in_environ (inferior_environ, path_var_name); | |
1753 | /* Can be null if path is not set */ | |
1754 | if (!env) | |
1755 | env = ""; | |
4fcf66da | 1756 | exec_path = xstrdup (env); |
c906108c SS |
1757 | mod_path (dirname, &exec_path); |
1758 | set_in_environ (inferior_environ, path_var_name, exec_path); | |
b8c9b27d | 1759 | xfree (exec_path); |
c906108c | 1760 | if (from_tty) |
c5aa993b | 1761 | path_info ((char *) NULL, from_tty); |
c906108c | 1762 | } |
c906108c | 1763 | \f |
c5aa993b | 1764 | |
4782dc19 | 1765 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
1766 | registers (print_all == 1) or all non-float and non-vector |
1767 | registers (print_all == 0). | |
c906108c SS |
1768 | |
1769 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
1770 | register(s) one per line is good enough. If a different format is |
1771 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
1772 | regs), or there is an existing convention for showing all the | |
1773 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
1774 | provide that format. */ | |
c906108c | 1775 | |
666e11c5 | 1776 | void |
0ab7a791 AC |
1777 | default_print_registers_info (struct gdbarch *gdbarch, |
1778 | struct ui_file *file, | |
1779 | struct frame_info *frame, | |
1780 | int regnum, int print_all) | |
c906108c | 1781 | { |
0ab7a791 | 1782 | int i; |
a4bd449d UW |
1783 | const int numregs = gdbarch_num_regs (gdbarch) |
1784 | + gdbarch_num_pseudo_regs (gdbarch); | |
10c42a71 | 1785 | gdb_byte buffer[MAX_REGISTER_SIZE]; |
0ab7a791 | 1786 | |
c906108c SS |
1787 | for (i = 0; i < numregs; i++) |
1788 | { | |
4782dc19 AC |
1789 | /* Decide between printing all regs, non-float / vector regs, or |
1790 | specific reg. */ | |
c5aa993b JM |
1791 | if (regnum == -1) |
1792 | { | |
f9418c0f | 1793 | if (print_all) |
4782dc19 | 1794 | { |
f9418c0f | 1795 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 1796 | continue; |
f9418c0f AC |
1797 | } |
1798 | else | |
1799 | { | |
1800 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
1801 | continue; |
1802 | } | |
c5aa993b JM |
1803 | } |
1804 | else | |
1805 | { | |
1806 | if (i != regnum) | |
1807 | continue; | |
1808 | } | |
c906108c SS |
1809 | |
1810 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 1811 | processor, so don't display anything. */ |
a4bd449d UW |
1812 | if (gdbarch_register_name (gdbarch, i) == NULL |
1813 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
1814 | continue; |
1815 | ||
a4bd449d | 1816 | fputs_filtered (gdbarch_register_name (gdbarch, i), file); |
c9f4d572 | 1817 | print_spaces_filtered (15 - strlen (gdbarch_register_name |
a4bd449d | 1818 | (gdbarch, i)), file); |
c906108c SS |
1819 | |
1820 | /* Get the data in raw format. */ | |
9730f241 | 1821 | if (! frame_register_read (frame, i, buffer)) |
c906108c | 1822 | { |
0ab7a791 | 1823 | fprintf_filtered (file, "*value not available*\n"); |
c906108c SS |
1824 | continue; |
1825 | } | |
1826 | ||
0ab7a791 AC |
1827 | /* If virtual format is floating, print it that way, and in raw |
1828 | hex. */ | |
f949c649 TJB |
1829 | if (TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_FLT |
1830 | || TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_DECFLOAT) | |
c906108c | 1831 | { |
0ab7a791 | 1832 | int j; |
79a45b7d | 1833 | struct value_print_options opts; |
c906108c | 1834 | |
79a45b7d TT |
1835 | get_user_print_options (&opts); |
1836 | opts.deref_ref = 1; | |
a4bd449d | 1837 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d | 1838 | file, 0, &opts, current_language); |
c906108c | 1839 | |
0ab7a791 | 1840 | fprintf_filtered (file, "\t(raw 0x"); |
a4bd449d | 1841 | for (j = 0; j < register_size (gdbarch, i); j++) |
c906108c | 1842 | { |
0ab7a791 | 1843 | int idx; |
a4bd449d | 1844 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
0ab7a791 AC |
1845 | idx = j; |
1846 | else | |
a4bd449d | 1847 | idx = register_size (gdbarch, i) - 1 - j; |
9730f241 | 1848 | fprintf_filtered (file, "%02x", (unsigned char) buffer[idx]); |
c906108c | 1849 | } |
0ab7a791 | 1850 | fprintf_filtered (file, ")"); |
c906108c | 1851 | } |
c906108c SS |
1852 | else |
1853 | { | |
79a45b7d TT |
1854 | struct value_print_options opts; |
1855 | ||
ab4327e0 | 1856 | /* Print the register in hex. */ |
79a45b7d TT |
1857 | get_formatted_print_options (&opts, 'x'); |
1858 | opts.deref_ref = 1; | |
a4bd449d | 1859 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d TT |
1860 | file, 0, &opts, |
1861 | current_language); | |
ab4327e0 EZ |
1862 | /* If not a vector register, print it also according to its |
1863 | natural format. */ | |
a4bd449d | 1864 | if (TYPE_VECTOR (register_type (gdbarch, i)) == 0) |
ab4327e0 | 1865 | { |
79a45b7d TT |
1866 | get_user_print_options (&opts); |
1867 | opts.deref_ref = 1; | |
9d84ac84 | 1868 | fprintf_filtered (file, "\t"); |
a4bd449d | 1869 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d | 1870 | file, 0, &opts, current_language); |
ab4327e0 | 1871 | } |
c906108c SS |
1872 | } |
1873 | ||
0ab7a791 | 1874 | fprintf_filtered (file, "\n"); |
c906108c SS |
1875 | } |
1876 | } | |
c906108c | 1877 | |
c906108c | 1878 | void |
fba45db2 | 1879 | registers_info (char *addr_exp, int fpregs) |
c906108c | 1880 | { |
206415a3 | 1881 | struct frame_info *frame; |
a4bd449d | 1882 | struct gdbarch *gdbarch; |
c906108c | 1883 | int regnum, numregs; |
52f0bd74 | 1884 | char *end; |
c906108c SS |
1885 | |
1886 | if (!target_has_registers) | |
8a3fe4f8 | 1887 | error (_("The program has no registers now.")); |
206415a3 | 1888 | frame = get_selected_frame (NULL); |
a4bd449d | 1889 | gdbarch = get_frame_arch (frame); |
c906108c SS |
1890 | |
1891 | if (!addr_exp) | |
1892 | { | |
a4bd449d | 1893 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1894 | frame, -1, fpregs); |
c906108c SS |
1895 | return; |
1896 | } | |
1897 | ||
f9418c0f | 1898 | while (*addr_exp != '\0') |
c5aa993b | 1899 | { |
f9418c0f AC |
1900 | char *start; |
1901 | const char *end; | |
c906108c | 1902 | |
f9418c0f AC |
1903 | /* Keep skipping leading white space. */ |
1904 | if (isspace ((*addr_exp))) | |
1905 | { | |
1906 | addr_exp++; | |
1907 | continue; | |
1908 | } | |
c906108c | 1909 | |
f9418c0f AC |
1910 | /* Discard any leading ``$''. Check that there is something |
1911 | resembling a register following it. */ | |
1912 | if (addr_exp[0] == '$') | |
1913 | addr_exp++; | |
1914 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 1915 | error (_("Missing register name")); |
c906108c | 1916 | |
f9418c0f AC |
1917 | /* Find the start/end of this register name/num/group. */ |
1918 | start = addr_exp; | |
1919 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
1920 | addr_exp++; | |
1921 | end = addr_exp; | |
ad842144 | 1922 | |
f9418c0f AC |
1923 | /* Figure out what we've found and display it. */ |
1924 | ||
1925 | /* A register name? */ | |
1926 | { | |
029a67e4 | 1927 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
f9418c0f AC |
1928 | if (regnum >= 0) |
1929 | { | |
ad842144 MR |
1930 | /* User registers lie completely outside of the range of |
1931 | normal registers. Catch them early so that the target | |
1932 | never sees them. */ | |
1933 | if (regnum >= gdbarch_num_regs (gdbarch) | |
1934 | + gdbarch_num_pseudo_regs (gdbarch)) | |
1935 | { | |
79a45b7d | 1936 | struct value_print_options opts; |
ad842144 MR |
1937 | struct value *val = value_of_user_reg (regnum, frame); |
1938 | ||
1939 | printf_filtered ("%s: ", start); | |
79a45b7d | 1940 | get_formatted_print_options (&opts, 'x'); |
ad842144 MR |
1941 | print_scalar_formatted (value_contents (val), |
1942 | check_typedef (value_type (val)), | |
79a45b7d | 1943 | &opts, 0, gdb_stdout); |
ad842144 MR |
1944 | printf_filtered ("\n"); |
1945 | } | |
1946 | else | |
1947 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
1948 | frame, regnum, fpregs); | |
f9418c0f AC |
1949 | continue; |
1950 | } | |
1951 | } | |
ad842144 | 1952 | |
f9418c0f AC |
1953 | /* A register group? */ |
1954 | { | |
6c7d17ba | 1955 | struct reggroup *group; |
a4bd449d | 1956 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 1957 | group != NULL; |
a4bd449d | 1958 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
1959 | { |
1960 | /* Don't bother with a length check. Should the user | |
1961 | enter a short register group name, go with the first | |
1962 | group that matches. */ | |
6c7d17ba | 1963 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
1964 | break; |
1965 | } | |
6c7d17ba | 1966 | if (group != NULL) |
f9418c0f AC |
1967 | { |
1968 | int regnum; | |
f57d151a | 1969 | for (regnum = 0; |
a4bd449d UW |
1970 | regnum < gdbarch_num_regs (gdbarch) |
1971 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1972 | regnum++) |
f9418c0f | 1973 | { |
a4bd449d UW |
1974 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
1975 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 1976 | gdb_stdout, frame, |
f9418c0f AC |
1977 | regnum, fpregs); |
1978 | } | |
1979 | continue; | |
1980 | } | |
1981 | } | |
c906108c | 1982 | |
f9418c0f | 1983 | /* Nothing matched. */ |
8a3fe4f8 | 1984 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 1985 | } |
c906108c SS |
1986 | } |
1987 | ||
1988 | void | |
fba45db2 | 1989 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
1990 | { |
1991 | registers_info (addr_exp, 1); | |
1992 | } | |
1993 | ||
a58dd373 | 1994 | static void |
fba45db2 | 1995 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
1996 | { |
1997 | registers_info (addr_exp, 0); | |
1998 | } | |
e76f1f2e AC |
1999 | |
2000 | static void | |
2001 | print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, | |
2002 | struct frame_info *frame, const char *args) | |
2003 | { | |
2004 | if (gdbarch_print_vector_info_p (gdbarch)) | |
2005 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
2006 | else | |
2007 | { | |
2008 | int regnum; | |
2009 | int printed_something = 0; | |
ab4327e0 | 2010 | |
f57d151a | 2011 | for (regnum = 0; |
a4bd449d UW |
2012 | regnum < gdbarch_num_regs (gdbarch) |
2013 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2014 | regnum++) |
e76f1f2e | 2015 | { |
f9418c0f | 2016 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
2017 | { |
2018 | printed_something = 1; | |
e76f1f2e | 2019 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
2020 | } |
2021 | } | |
2022 | if (!printed_something) | |
2023 | fprintf_filtered (file, "No vector information\n"); | |
2024 | } | |
2025 | } | |
2026 | ||
2027 | static void | |
2028 | vector_info (char *args, int from_tty) | |
2029 | { | |
206415a3 DJ |
2030 | if (!target_has_registers) |
2031 | error (_("The program has no registers now.")); | |
2032 | ||
2033 | print_vector_info (current_gdbarch, gdb_stdout, | |
2034 | get_selected_frame (NULL), args); | |
e76f1f2e | 2035 | } |
c906108c | 2036 | \f |
c5aa993b | 2037 | |
74531fed PA |
2038 | /* Used in `attach&' command. ARG is a point to an integer |
2039 | representing a process id. Proceed threads of this process iff | |
2040 | they stopped due to debugger request, and when they did, they | |
2041 | reported a clean stop (TARGET_SIGNAL_0). Do not proceed threads | |
2042 | that have been explicitly been told to stop. */ | |
2043 | ||
2044 | static int | |
2045 | proceed_after_attach_callback (struct thread_info *thread, | |
2046 | void *arg) | |
2047 | { | |
2048 | int pid = * (int *) arg; | |
2049 | ||
2050 | if (ptid_get_pid (thread->ptid) == pid | |
2051 | && !is_exited (thread->ptid) | |
2052 | && !is_executing (thread->ptid) | |
2053 | && !thread->stop_requested | |
2054 | && thread->stop_signal == TARGET_SIGNAL_0) | |
2055 | { | |
2056 | switch_to_thread (thread->ptid); | |
2057 | clear_proceed_status (); | |
2058 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2059 | } | |
2060 | ||
2061 | return 0; | |
2062 | } | |
2063 | ||
2064 | static void | |
2065 | proceed_after_attach (int pid) | |
2066 | { | |
2067 | /* Don't error out if the current thread is running, because | |
2068 | there may be other stopped threads. */ | |
2069 | struct cleanup *old_chain; | |
2070 | ||
2071 | /* Backup current thread and selected frame. */ | |
2072 | old_chain = make_cleanup_restore_current_thread (); | |
2073 | ||
2074 | iterate_over_threads (proceed_after_attach_callback, &pid); | |
2075 | ||
2076 | /* Restore selected ptid. */ | |
2077 | do_cleanups (old_chain); | |
2078 | } | |
2079 | ||
c906108c SS |
2080 | /* |
2081 | * TODO: | |
2082 | * Should save/restore the tty state since it might be that the | |
2083 | * program to be debugged was started on this tty and it wants | |
2084 | * the tty in some state other than what we want. If it's running | |
2085 | * on another terminal or without a terminal, then saving and | |
2086 | * restoring the tty state is a harmless no-op. | |
2087 | * This only needs to be done if we are attaching to a process. | |
2088 | */ | |
2089 | ||
2090 | /* | |
2091 | attach_command -- | |
2092 | takes a program started up outside of gdb and ``attaches'' to it. | |
2093 | This stops it cold in its tracks and allows us to start debugging it. | |
2094 | and wait for the trace-trap that results from attaching. */ | |
2095 | ||
9356cf8d PA |
2096 | static void |
2097 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
2098 | { | |
2099 | char *exec_file; | |
2100 | char *full_exec_path = NULL; | |
d6b48e9c | 2101 | struct inferior *inferior; |
9356cf8d | 2102 | |
d6b48e9c PA |
2103 | inferior = current_inferior (); |
2104 | inferior->stop_soon = NO_STOP_QUIETLY; | |
9356cf8d PA |
2105 | |
2106 | /* If no exec file is yet known, try to determine it from the | |
2107 | process itself. */ | |
2108 | exec_file = (char *) get_exec_file (0); | |
2109 | if (!exec_file) | |
2110 | { | |
2111 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
2112 | if (exec_file) | |
2113 | { | |
2114 | /* It's possible we don't have a full path, but rather just a | |
2115 | filename. Some targets, such as HP-UX, don't provide the | |
2116 | full path, sigh. | |
2117 | ||
2118 | Attempt to qualify the filename against the source path. | |
2119 | (If that fails, we'll just fall back on the original | |
2120 | filename. Not much more we can do...) | |
2121 | */ | |
2122 | if (!source_full_path_of (exec_file, &full_exec_path)) | |
2123 | full_exec_path = savestring (exec_file, strlen (exec_file)); | |
2124 | ||
2125 | exec_file_attach (full_exec_path, from_tty); | |
2126 | symbol_file_add_main (full_exec_path, from_tty); | |
2127 | } | |
2128 | } | |
2129 | else | |
2130 | { | |
2131 | reopen_exec_file (); | |
2132 | reread_symbols (); | |
2133 | } | |
2134 | ||
2135 | /* Take any necessary post-attaching actions for this platform. */ | |
2136 | target_post_attach (PIDGET (inferior_ptid)); | |
2137 | ||
2138 | post_create_inferior (¤t_target, from_tty); | |
2139 | ||
2140 | /* Install inferior's terminal modes. */ | |
2141 | target_terminal_inferior (); | |
2142 | ||
2143 | if (async_exec) | |
74531fed PA |
2144 | { |
2145 | /* The user requested an `attach&', so be sure to leave threads | |
2146 | that didn't get a signal running. */ | |
2147 | ||
2148 | /* Immediatelly resume all suspended threads of this inferior, | |
2149 | and this inferior only. This should have no effect on | |
2150 | already running threads. If a thread has been stopped with a | |
2151 | signal, leave it be. */ | |
2152 | if (non_stop) | |
2153 | proceed_after_attach (inferior->pid); | |
2154 | else | |
2155 | { | |
2156 | if (inferior_thread ()->stop_signal == TARGET_SIGNAL_0) | |
2157 | { | |
2158 | clear_proceed_status (); | |
2159 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2160 | } | |
2161 | } | |
2162 | } | |
9356cf8d PA |
2163 | else |
2164 | { | |
74531fed PA |
2165 | /* The user requested a plain `attach', so be sure to leave |
2166 | the inferior stopped. */ | |
2167 | ||
9356cf8d PA |
2168 | if (target_can_async_p ()) |
2169 | async_enable_stdin (); | |
74531fed PA |
2170 | |
2171 | /* At least the current thread is already stopped. */ | |
2172 | ||
2173 | /* In all-stop, by definition, all threads have to be already | |
2174 | stopped at this point. In non-stop, however, although the | |
2175 | selected thread is stopped, others may still be executing. | |
2176 | Be sure to explicitly stop all threads of the process. This | |
2177 | should have no effect on already stopped threads. */ | |
2178 | if (non_stop) | |
2179 | target_stop (pid_to_ptid (inferior->pid)); | |
2180 | ||
2181 | /* Tell the user/frontend where we're stopped. */ | |
9356cf8d PA |
2182 | normal_stop (); |
2183 | if (deprecated_attach_hook) | |
2184 | deprecated_attach_hook (); | |
2185 | } | |
2186 | } | |
2187 | ||
bfec99b2 | 2188 | struct attach_command_continuation_args |
9356cf8d PA |
2189 | { |
2190 | char *args; | |
2191 | int from_tty; | |
2192 | int async_exec; | |
bfec99b2 | 2193 | }; |
9356cf8d | 2194 | |
bfec99b2 | 2195 | static void |
604ead4a | 2196 | attach_command_continuation (void *args) |
bfec99b2 PA |
2197 | { |
2198 | struct attach_command_continuation_args *a = args; | |
2199 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); | |
9356cf8d PA |
2200 | } |
2201 | ||
604ead4a PA |
2202 | static void |
2203 | attach_command_continuation_free_args (void *args) | |
2204 | { | |
2205 | struct attach_command_continuation_args *a = args; | |
2206 | xfree (a->args); | |
2207 | xfree (a); | |
2208 | } | |
2209 | ||
c906108c | 2210 | void |
fba45db2 | 2211 | attach_command (char *args, int from_tty) |
c906108c | 2212 | { |
c5aa993b JM |
2213 | char *exec_file; |
2214 | char *full_exec_path = NULL; | |
9356cf8d | 2215 | int async_exec = 0; |
cb0362bb | 2216 | struct cleanup *back_to = make_cleanup (null_cleanup, NULL); |
c906108c | 2217 | |
c5aa993b | 2218 | dont_repeat (); /* Not for the faint of heart */ |
c906108c | 2219 | |
8a305172 PA |
2220 | if (target_supports_multi_process ()) |
2221 | /* Don't complain if we can be attached to multiple processes. */ | |
2222 | ; | |
2223 | else if (target_has_execution) | |
c906108c | 2224 | { |
9e2f0ad4 | 2225 | if (query (_("A program is being debugged already. Kill it? "))) |
c906108c SS |
2226 | target_kill (); |
2227 | else | |
8a3fe4f8 | 2228 | error (_("Not killed.")); |
c906108c SS |
2229 | } |
2230 | ||
fd79ecee DJ |
2231 | /* Clean up any leftovers from other runs. Some other things from |
2232 | this function should probably be moved into target_pre_inferior. */ | |
2233 | target_pre_inferior (from_tty); | |
2234 | ||
9908b566 VP |
2235 | if (non_stop && !target_supports_non_stop ()) |
2236 | error (_("Cannot attach to this target in non-stop mode")); | |
2237 | ||
9356cf8d PA |
2238 | if (args) |
2239 | { | |
2240 | async_exec = strip_bg_char (&args); | |
2241 | ||
2242 | /* If we get a request for running in the bg but the target | |
2243 | doesn't support it, error out. */ | |
2244 | if (async_exec && !target_can_async_p ()) | |
2245 | error (_("Asynchronous execution not supported on this target.")); | |
2246 | } | |
2247 | ||
2248 | /* If we don't get a request of running in the bg, then we need | |
2249 | to simulate synchronous (fg) execution. */ | |
2250 | if (!async_exec && target_can_async_p ()) | |
2251 | { | |
2252 | /* Simulate synchronous execution */ | |
2253 | async_disable_stdin (); | |
cb0362bb | 2254 | make_cleanup ((make_cleanup_ftype *)async_enable_stdin, NULL); |
9356cf8d PA |
2255 | } |
2256 | ||
c906108c SS |
2257 | target_attach (args, from_tty); |
2258 | ||
2259 | /* Set up the "saved terminal modes" of the inferior | |
2260 | based on what modes we are starting it with. */ | |
2261 | target_terminal_init (); | |
2262 | ||
c906108c SS |
2263 | /* Set up execution context to know that we should return from |
2264 | wait_for_inferior as soon as the target reports a stop. */ | |
2265 | init_wait_for_inferior (); | |
2266 | clear_proceed_status (); | |
c906108c | 2267 | |
74531fed PA |
2268 | if (non_stop) |
2269 | { | |
2270 | /* If we find that the current thread isn't stopped, explicitly | |
2271 | do so now, because we're going to install breakpoints and | |
2272 | poke at memory. */ | |
2273 | ||
2274 | if (async_exec) | |
2275 | /* The user requested an `attach&'; stop just one thread. */ | |
2276 | target_stop (inferior_ptid); | |
2277 | else | |
2278 | /* The user requested an `attach', so stop all threads of this | |
2279 | inferior. */ | |
2280 | target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid))); | |
2281 | } | |
2282 | ||
dc177b7a PA |
2283 | /* Some system don't generate traps when attaching to inferior. |
2284 | E.g. Mach 3 or GNU hurd. */ | |
2285 | if (!target_attach_no_wait) | |
c5aa993b | 2286 | { |
d6b48e9c PA |
2287 | struct inferior *inferior = current_inferior (); |
2288 | ||
dc177b7a PA |
2289 | /* Careful here. See comments in inferior.h. Basically some |
2290 | OSes don't ignore SIGSTOPs on continue requests anymore. We | |
2291 | need a way for handle_inferior_event to reset the stop_signal | |
2292 | variable after an attach, and this is what | |
2293 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
d6b48e9c | 2294 | inferior->stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2295 | |
dc177b7a PA |
2296 | if (target_can_async_p ()) |
2297 | { | |
2298 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2299 | struct attach_command_continuation_args *a; |
2300 | ||
2301 | a = xmalloc (sizeof (*a)); | |
2302 | a->args = xstrdup (args); | |
2303 | a->from_tty = from_tty; | |
2304 | a->async_exec = async_exec; | |
e0ba6746 PA |
2305 | add_inferior_continuation (attach_command_continuation, a, |
2306 | attach_command_continuation_free_args); | |
cb0362bb | 2307 | discard_cleanups (back_to); |
dc177b7a PA |
2308 | return; |
2309 | } | |
c906108c | 2310 | |
dc177b7a PA |
2311 | wait_for_inferior (0); |
2312 | } | |
6426a772 | 2313 | |
9356cf8d | 2314 | attach_command_post_wait (args, from_tty, async_exec); |
cb0362bb | 2315 | discard_cleanups (back_to); |
c906108c SS |
2316 | } |
2317 | ||
1941c569 PA |
2318 | /* We had just found out that the target was already attached to an |
2319 | inferior. PTID points at a thread of this new inferior, that is | |
2320 | the most likely to be stopped right now, but not necessarily so. | |
2321 | The new inferior is assumed to be already added to the inferior | |
2322 | list at this point. If LEAVE_RUNNING, then leave the threads of | |
2323 | this inferior running, except those we've explicitly seen reported | |
2324 | as stopped. */ | |
2325 | ||
2326 | void | |
2327 | notice_new_inferior (ptid_t ptid, int leave_running, int from_tty) | |
2328 | { | |
2329 | struct cleanup* old_chain; | |
2330 | int async_exec; | |
2331 | ||
2332 | old_chain = make_cleanup (null_cleanup, NULL); | |
2333 | ||
2334 | /* If in non-stop, leave threads as running as they were. If | |
2335 | they're stopped for some reason other than us telling it to, the | |
2336 | target reports a signal != TARGET_SIGNAL_0. We don't try to | |
2337 | resume threads with such a stop signal. */ | |
2338 | async_exec = non_stop; | |
2339 | ||
2340 | if (!ptid_equal (inferior_ptid, null_ptid)) | |
2341 | make_cleanup_restore_current_thread (); | |
2342 | ||
2343 | switch_to_thread (ptid); | |
2344 | ||
2345 | /* When we "notice" a new inferior we need to do all the things we | |
2346 | would normally do if we had just attached to it. */ | |
2347 | ||
2348 | if (is_executing (inferior_ptid)) | |
2349 | { | |
2350 | struct inferior *inferior = current_inferior (); | |
2351 | ||
2352 | /* We're going to install breakpoints, and poke at memory, | |
2353 | ensure that the inferior is stopped for a moment while we do | |
2354 | that. */ | |
2355 | target_stop (inferior_ptid); | |
2356 | ||
2357 | inferior->stop_soon = STOP_QUIETLY_REMOTE; | |
2358 | ||
2359 | /* Wait for stop before proceeding. */ | |
2360 | if (target_can_async_p ()) | |
2361 | { | |
2362 | struct attach_command_continuation_args *a; | |
2363 | ||
2364 | a = xmalloc (sizeof (*a)); | |
2365 | a->args = xstrdup (""); | |
2366 | a->from_tty = from_tty; | |
2367 | a->async_exec = async_exec; | |
2368 | add_inferior_continuation (attach_command_continuation, a, | |
2369 | attach_command_continuation_free_args); | |
2370 | ||
2371 | do_cleanups (old_chain); | |
2372 | return; | |
2373 | } | |
2374 | else | |
2375 | wait_for_inferior (0); | |
2376 | } | |
2377 | ||
2378 | async_exec = leave_running; | |
2379 | attach_command_post_wait ("" /* args */, from_tty, async_exec); | |
2380 | ||
2381 | do_cleanups (old_chain); | |
2382 | } | |
2383 | ||
c906108c SS |
2384 | /* |
2385 | * detach_command -- | |
2386 | * takes a program previously attached to and detaches it. | |
2387 | * The program resumes execution and will no longer stop | |
2388 | * on signals, etc. We better not have left any breakpoints | |
2389 | * in the program or it'll die when it hits one. For this | |
2390 | * to work, it may be necessary for the process to have been | |
2391 | * previously attached. It *might* work if the program was | |
2392 | * started via the normal ptrace (PTRACE_TRACEME). | |
2393 | */ | |
2394 | ||
6418d433 | 2395 | void |
fba45db2 | 2396 | detach_command (char *args, int from_tty) |
c906108c | 2397 | { |
1f5d0fc9 | 2398 | dont_repeat (); /* Not for the faint of heart. */ |
d729566a PA |
2399 | |
2400 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2401 | error (_("The program is not being run.")); | |
2402 | ||
c906108c | 2403 | target_detach (args, from_tty); |
50c71eaf PA |
2404 | |
2405 | /* If the solist is global across inferiors, don't clear it when we | |
2406 | detach from a single inferior. */ | |
2407 | if (!gdbarch_has_global_solist (target_gdbarch)) | |
2408 | no_shared_libraries (NULL, from_tty); | |
8a305172 PA |
2409 | |
2410 | /* If the current target interface claims there's still execution, | |
2411 | then don't mess with threads of other processes. */ | |
2412 | if (!target_has_execution) | |
2413 | init_thread_list (); | |
2414 | ||
9a4105ab AC |
2415 | if (deprecated_detach_hook) |
2416 | deprecated_detach_hook (); | |
c906108c SS |
2417 | } |
2418 | ||
6ad8ae5c DJ |
2419 | /* Disconnect from the current target without resuming it (leaving it |
2420 | waiting for a debugger). | |
2421 | ||
2422 | We'd better not have left any breakpoints in the program or the | |
2423 | next debugger will get confused. Currently only supported for some | |
2424 | remote targets, since the normal attach mechanisms don't work on | |
2425 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2426 | ||
2427 | static void | |
2428 | disconnect_command (char *args, int from_tty) | |
2429 | { | |
2430 | dont_repeat (); /* Not for the faint of heart */ | |
2431 | target_disconnect (args, from_tty); | |
e85a822c | 2432 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2433 | init_thread_list (); |
9a4105ab AC |
2434 | if (deprecated_detach_hook) |
2435 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2436 | } |
2437 | ||
77ebaa5a VP |
2438 | void |
2439 | interrupt_target_1 (int all_threads) | |
2440 | { | |
2441 | ptid_t ptid; | |
2442 | if (all_threads) | |
2443 | ptid = minus_one_ptid; | |
2444 | else | |
2445 | ptid = inferior_ptid; | |
2446 | target_stop (ptid); | |
252fbfc8 PA |
2447 | |
2448 | /* Tag the thread as having been explicitly requested to stop, so | |
2449 | other parts of gdb know not to resume this thread automatically, | |
2450 | if it was stopped due to an internal event. Limit this to | |
2451 | non-stop mode, as when debugging a multi-threaded application in | |
2452 | all-stop mode, we will only get one stop event --- it's undefined | |
2453 | which thread will report the event. */ | |
2454 | if (non_stop) | |
2455 | set_stop_requested (ptid, 1); | |
77ebaa5a VP |
2456 | } |
2457 | ||
43ff13b4 | 2458 | /* Stop the execution of the target while running in async mode, in |
8cae4b3f PA |
2459 | the backgound. In all-stop, stop the whole process. In non-stop |
2460 | mode, stop the current thread only by default, or stop all threads | |
2461 | if the `-a' switch is used. */ | |
2462 | ||
2463 | /* interrupt [-a] */ | |
8b93c638 | 2464 | void |
fba45db2 | 2465 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2466 | { |
362646f5 | 2467 | if (target_can_async_p ()) |
43ff13b4 | 2468 | { |
8cae4b3f PA |
2469 | int all_threads = 0; |
2470 | ||
c5aa993b | 2471 | dont_repeat (); /* Not for the faint of heart */ |
94cc34af | 2472 | |
8cae4b3f PA |
2473 | if (args != NULL |
2474 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2475 | all_threads = 1; | |
2476 | ||
2477 | if (!non_stop && all_threads) | |
2478 | error (_("-a is meaningless in all-stop mode.")); | |
2479 | ||
77ebaa5a | 2480 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2481 | } |
2482 | } | |
2483 | ||
c906108c | 2484 | static void |
23e3a7ac AC |
2485 | print_float_info (struct gdbarch *gdbarch, struct ui_file *file, |
2486 | struct frame_info *frame, const char *args) | |
c906108c | 2487 | { |
23e3a7ac AC |
2488 | if (gdbarch_print_float_info_p (gdbarch)) |
2489 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2490 | else | |
2491 | { | |
23e3a7ac AC |
2492 | int regnum; |
2493 | int printed_something = 0; | |
ab4327e0 | 2494 | |
f57d151a | 2495 | for (regnum = 0; |
a4bd449d UW |
2496 | regnum < gdbarch_num_regs (gdbarch) |
2497 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2498 | regnum++) |
23e3a7ac | 2499 | { |
f9418c0f | 2500 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2501 | { |
2502 | printed_something = 1; | |
23e3a7ac | 2503 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2504 | } |
2505 | } | |
2506 | if (!printed_something) | |
2507 | fprintf_filtered (file, "\ | |
2508 | No floating-point info available for this processor.\n"); | |
23e3a7ac AC |
2509 | } |
2510 | } | |
2511 | ||
2512 | static void | |
2513 | float_info (char *args, int from_tty) | |
2514 | { | |
206415a3 DJ |
2515 | if (!target_has_registers) |
2516 | error (_("The program has no registers now.")); | |
2517 | ||
1f5d0fc9 | 2518 | print_float_info (current_gdbarch, gdb_stdout, |
206415a3 | 2519 | get_selected_frame (NULL), args); |
c906108c SS |
2520 | } |
2521 | \f | |
c906108c | 2522 | static void |
fba45db2 | 2523 | unset_command (char *args, int from_tty) |
c906108c | 2524 | { |
a3f17187 AC |
2525 | printf_filtered (_("\ |
2526 | \"unset\" must be followed by the name of an unset subcommand.\n")); | |
c906108c SS |
2527 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2528 | } | |
2529 | ||
2530 | void | |
fba45db2 | 2531 | _initialize_infcmd (void) |
c906108c | 2532 | { |
3cb3b8df BR |
2533 | struct cmd_list_element *c = NULL; |
2534 | ||
2535 | /* add the filename of the terminal connected to inferior I/O */ | |
2536 | add_setshow_filename_cmd ("inferior-tty", class_run, | |
2537 | &inferior_io_terminal, _("\ | |
2538 | Set terminal for future runs of program being debugged."), _("\ | |
2539 | Show terminal for future runs of program being debugged."), _("\ | |
2540 | Usage: set inferior-tty /dev/pts/1"), NULL, NULL, &setlist, &showlist); | |
2541 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); | |
c906108c | 2542 | |
b4b4ac0b AC |
2543 | add_setshow_optional_filename_cmd ("args", class_run, |
2544 | &inferior_args, _("\ | |
2545 | Set argument list to give program being debugged when it is started."), _("\ | |
2546 | Show argument list to give program being debugged when it is started."), _("\ | |
2547 | Follow this command with any number of args, to be passed to the program."), | |
2548 | notice_args_set, | |
2549 | notice_args_read, | |
2550 | &setlist, &showlist); | |
c906108c | 2551 | |
1a966eab AC |
2552 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2553 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2554 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2555 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2556 | environment to be given to the program."), &showlist); |
5ba2abeb | 2557 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2558 | |
2559 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2560 | _("Complement to certain \"set\" commands."), |
c906108c | 2561 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2562 | |
1a966eab AC |
2563 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2564 | Cancel environment variable VAR for the program.\n\ | |
2565 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2566 | &unsetlist); |
5ba2abeb | 2567 | set_cmd_completer (c, noop_completer); |
c906108c | 2568 | |
1a966eab AC |
2569 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2570 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2571 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2572 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2573 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2574 | &setlist); |
5ba2abeb | 2575 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2576 | |
1bedd215 AC |
2577 | c = add_com ("path", class_files, path_command, _("\ |
2578 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2579 | $cwd in the path means the current working directory.\n\ |
2580 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2581 | directories, separated by colons. These directories are searched to find\n\ | |
1bedd215 | 2582 | fully linked executable files and separately compiled object files as needed.")); |
5ba2abeb | 2583 | set_cmd_completer (c, filename_completer); |
c906108c | 2584 | |
1a966eab AC |
2585 | c = add_cmd ("paths", no_class, path_info, _("\ |
2586 | Current search path for finding object files.\n\ | |
c906108c SS |
2587 | $cwd in the path means the current working directory.\n\ |
2588 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2589 | directories, separated by colons. These directories are searched to find\n\ | |
1a966eab | 2590 | fully linked executable files and separately compiled object files as needed."), |
c906108c | 2591 | &showlist); |
5ba2abeb | 2592 | set_cmd_completer (c, noop_completer); |
c906108c | 2593 | |
1bedd215 AC |
2594 | add_com ("attach", class_run, attach_command, _("\ |
2595 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
2596 | This command attaches to another target, of the same type as your last\n\ |
2597 | \"target\" command (\"info files\" will show your target stack).\n\ | |
2598 | The command may take as argument a process id or a device file.\n\ | |
2599 | For a process id, you must have permission to send the process a signal,\n\ | |
2600 | and it must have the same effective uid as the debugger.\n\ | |
2601 | When using \"attach\" with a process id, the debugger finds the\n\ | |
2602 | program running in the process, looking first in the current working\n\ | |
2603 | directory, or (if not found there) using the source file search path\n\ | |
2604 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 2605 | to specify the program, and to load its symbol table.")); |
c906108c | 2606 | |
f73adfeb | 2607 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 2608 | Detach a process or file previously attached.\n\ |
c906108c | 2609 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
2610 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2611 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 2612 | |
1bedd215 AC |
2613 | add_com ("disconnect", class_run, disconnect_command, _("\ |
2614 | Disconnect from a target.\n\ | |
6ad8ae5c | 2615 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 2616 | all targets.")); |
6ad8ae5c | 2617 | |
1bedd215 AC |
2618 | add_com ("signal", class_run, signal_command, _("\ |
2619 | Continue program giving it signal specified by the argument.\n\ | |
2620 | An argument of \"0\" means continue program without giving it a signal.")); | |
c906108c | 2621 | |
1bedd215 AC |
2622 | add_com ("stepi", class_run, stepi_command, _("\ |
2623 | Step one instruction exactly.\n\ | |
2624 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2625 | add_com_alias ("si", "stepi", class_alias, 0); |
2626 | ||
1bedd215 AC |
2627 | add_com ("nexti", class_run, nexti_command, _("\ |
2628 | Step one instruction, but proceed through subroutine calls.\n\ | |
2629 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2630 | add_com_alias ("ni", "nexti", class_alias, 0); |
2631 | ||
1bedd215 AC |
2632 | add_com ("finish", class_run, finish_command, _("\ |
2633 | Execute until selected stack frame returns.\n\ | |
2634 | Upon return, the value returned is printed and put in the value history.")); | |
0e479716 | 2635 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 2636 | |
1bedd215 AC |
2637 | add_com ("next", class_run, next_command, _("\ |
2638 | Step program, proceeding through subroutine calls.\n\ | |
c906108c SS |
2639 | Like the \"step\" command as long as subroutine calls do not happen;\n\ |
2640 | when they do, the call is treated as one instruction.\n\ | |
1bedd215 | 2641 | Argument N means do this N times (or till program stops for another reason).")); |
c906108c SS |
2642 | add_com_alias ("n", "next", class_run, 1); |
2643 | if (xdb_commands) | |
c5aa993b | 2644 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 2645 | |
1bedd215 AC |
2646 | add_com ("step", class_run, step_command, _("\ |
2647 | Step program until it reaches a different source line.\n\ | |
2648 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2649 | add_com_alias ("s", "step", class_run, 1); |
2650 | ||
1bedd215 AC |
2651 | c = add_com ("until", class_run, until_command, _("\ |
2652 | Execute until the program reaches a source line greater than the current\n\ | |
2653 | or a specified location (same args as break command) within the current frame.")); | |
5ba2abeb | 2654 | set_cmd_completer (c, location_completer); |
c906108c | 2655 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 2656 | |
1bedd215 AC |
2657 | c = add_com ("advance", class_run, advance_command, _("\ |
2658 | Continue the program up to the given location (same form as args for break command).\n\ | |
2659 | Execution will also stop upon exit from the current stack frame.")); | |
ae66c1fc EZ |
2660 | set_cmd_completer (c, location_completer); |
2661 | ||
1bedd215 AC |
2662 | c = add_com ("jump", class_run, jump_command, _("\ |
2663 | Continue program being debugged at specified line or address.\n\ | |
c906108c | 2664 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 2665 | for an address to start at.")); |
5ba2abeb | 2666 | set_cmd_completer (c, location_completer); |
c906108c | 2667 | |
b83266a0 | 2668 | if (xdb_commands) |
c94fdfd0 | 2669 | { |
1bedd215 AC |
2670 | c = add_com ("go", class_run, go_command, _("\ |
2671 | Usage: go <location>\n\ | |
c906108c SS |
2672 | Continue program being debugged, stopping at specified line or \n\ |
2673 | address.\n\ | |
2674 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
2675 | expression for an address to start at.\n\ | |
1bedd215 | 2676 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 2677 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 2678 | } |
b83266a0 | 2679 | |
c906108c | 2680 | if (xdb_commands) |
c5aa993b | 2681 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 2682 | |
8cae4b3f | 2683 | c = add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 2684 | Continue program being debugged, after signal or breakpoint.\n\ |
c906108c SS |
2685 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
2686 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
2687 | the breakpoint won't break until the Nth time it is reached).\n\ |
2688 | \n\ | |
2689 | If non-stop mode is enabled, continue only the current thread,\n\ | |
2690 | otherwise all the threads in the program are continued. To \n\ | |
2691 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
2692 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
2693 | add_com_alias ("c", "cont", class_run, 1); |
2694 | add_com_alias ("fg", "cont", class_run, 1); | |
2695 | ||
1bedd215 AC |
2696 | c = add_com ("run", class_run, run_command, _("\ |
2697 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c SS |
2698 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
2699 | Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\ | |
2700 | With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\ | |
2701 | To cancel previous arguments and run with no arguments,\n\ | |
1bedd215 | 2702 | use \"set args\" without arguments.")); |
5ba2abeb | 2703 | set_cmd_completer (c, filename_completer); |
c906108c SS |
2704 | add_com_alias ("r", "run", class_run, 1); |
2705 | if (xdb_commands) | |
2706 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 2707 | _("Start debugged program with no arguments.")); |
c906108c | 2708 | |
1bedd215 | 2709 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
2710 | Run the debugged program until the beginning of the main procedure.\n\ |
2711 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 2712 | \"run\" command.")); |
a4d5f2e0 JB |
2713 | set_cmd_completer (c, filename_completer); |
2714 | ||
700b53b1 | 2715 | c = add_com ("interrupt", class_run, interrupt_target_command, |
8cae4b3f PA |
2716 | _("Interrupt the execution of the debugged program.\n\ |
2717 | If non-stop mode is enabled, interrupt only the current thread,\n\ | |
2718 | otherwise all the threads in the program are stopped. To \n\ | |
2719 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 2720 | |
1bedd215 AC |
2721 | add_info ("registers", nofp_registers_info, _("\ |
2722 | List of integer registers and their contents, for selected stack frame.\n\ | |
2723 | Register name as argument means describe only that register.")); | |
7194c49b | 2724 | add_info_alias ("r", "registers", 1); |
c906108c SS |
2725 | |
2726 | if (xdb_commands) | |
1bedd215 AC |
2727 | add_com ("lr", class_info, nofp_registers_info, _("\ |
2728 | List of integer registers and their contents, for selected stack frame.\n\ | |
2729 | Register name as argument means describe only that register.")); | |
2730 | add_info ("all-registers", all_registers_info, _("\ | |
2731 | List of all registers and their contents, for selected stack frame.\n\ | |
2732 | Register name as argument means describe only that register.")); | |
c906108c SS |
2733 | |
2734 | add_info ("program", program_info, | |
1bedd215 | 2735 | _("Execution status of the program.")); |
c906108c SS |
2736 | |
2737 | add_info ("float", float_info, | |
1bedd215 | 2738 | _("Print the status of the floating point unit\n")); |
c906108c | 2739 | |
e76f1f2e | 2740 | add_info ("vector", vector_info, |
1bedd215 | 2741 | _("Print the status of the vector unit\n")); |
e76f1f2e | 2742 | |
c906108c SS |
2743 | inferior_environ = make_environ (); |
2744 | init_environ (inferior_environ); | |
2745 | } |