1 /* Memory-access and commands for "inferior" process, for GDB.
3 Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
4 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
5 2008, 2009 Free Software Foundation, Inc.
7 This file is part of GDB.
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
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
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.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
24 #include "gdb_string.h"
38 #include "completer.h"
40 #include "event-top.h"
41 #include "parser-defs.h"
43 #include "reggroups.h"
47 #include "gdb_assert.h"
49 #include "target-descriptions.h"
50 #include "user-regs.h"
51 #include "exceptions.h"
52 #include "cli/cli-decode.h"
53 #include "gdbthread.h"
56 /* Functions exported for general use, in inferior.h: */
58 void all_registers_info (char *, int);
60 void registers_info (char *, int);
62 void nexti_command (char *, int);
64 void stepi_command (char *, int);
66 void continue_command (char *, int);
68 void interrupt_target_command (char *args
, int from_tty
);
70 /* Local functions: */
72 static void nofp_registers_info (char *, int);
74 static void print_return_value (struct type
*func_type
,
75 struct type
*value_type
);
77 static void until_next_command (int);
79 static void until_command (char *, int);
81 static void path_info (char *, int);
83 static void path_command (char *, int);
85 static void unset_command (char *, int);
87 static void float_info (char *, int);
89 static void disconnect_command (char *, int);
91 static void unset_environment_command (char *, int);
93 static void set_environment_command (char *, int);
95 static void environment_info (char *, int);
97 static void program_info (char *, int);
99 static void finish_command (char *, int);
101 static void signal_command (char *, int);
103 static void jump_command (char *, int);
105 static void step_1 (int, int, char *);
106 static void step_once (int skip_subroutines
, int single_inst
, int count
, int thread
);
108 static void next_command (char *, int);
110 static void step_command (char *, int);
112 static void run_command (char *, int);
114 static void run_no_args_command (char *args
, int from_tty
);
116 static void go_command (char *line_no
, int from_tty
);
118 static int strip_bg_char (char **);
120 void _initialize_infcmd (void);
122 #define ERROR_NO_INFERIOR \
123 if (!target_has_execution) error (_("The program is not being run."));
125 /* String containing arguments to give to the program, separated by spaces.
126 Empty string (pointer to '\0') means no args. */
128 static char *inferior_args
;
130 /* The inferior arguments as a vector. If INFERIOR_ARGC is nonzero,
131 then we must compute INFERIOR_ARGS from this (via the target). */
133 static int inferior_argc
;
134 static char **inferior_argv
;
136 /* File name for default use for standard in/out in the inferior. */
138 static char *inferior_io_terminal
;
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
145 ptid_t inferior_ptid
;
147 /* Address at which inferior stopped. */
151 /* Flag indicating that a command has proceeded the inferior past the
152 current breakpoint. */
154 int breakpoint_proceeded
;
156 /* Nonzero if stopped due to completion of a stack dummy routine. */
158 int stop_stack_dummy
;
160 /* Nonzero if stopped due to a random (unexpected) signal in inferior
163 int stopped_by_random_signal
;
165 /* Environment to use for running inferior,
166 in format described in environ.h. */
168 struct gdb_environ
*inferior_environ
;
170 /* When set, no calls to target_resumed observer will be made. */
171 int suppress_resume_observer
= 0;
173 /* Accessor routines. */
176 set_inferior_io_terminal (const char *terminal_name
)
178 if (inferior_io_terminal
)
179 xfree (inferior_io_terminal
);
182 inferior_io_terminal
= NULL
;
184 inferior_io_terminal
= savestring (terminal_name
, strlen (terminal_name
));
188 get_inferior_io_terminal (void)
190 return inferior_io_terminal
;
194 get_inferior_args (void)
196 if (inferior_argc
!= 0)
200 n
= gdbarch_construct_inferior_arguments (current_gdbarch
,
201 inferior_argc
, inferior_argv
);
202 old
= set_inferior_args (n
);
206 if (inferior_args
== NULL
)
207 inferior_args
= xstrdup ("");
209 return inferior_args
;
213 set_inferior_args (char *newargs
)
215 char *saved_args
= inferior_args
;
217 inferior_args
= newargs
;
225 set_inferior_args_vector (int argc
, char **argv
)
227 inferior_argc
= argc
;
228 inferior_argv
= argv
;
231 /* Notice when `set args' is run. */
233 notice_args_set (char *args
, int from_tty
, struct cmd_list_element
*c
)
239 /* Notice when `show args' is run. */
241 notice_args_read (struct ui_file
*file
, int from_tty
,
242 struct cmd_list_element
*c
, const char *value
)
244 /* Note that we ignore the passed-in value in favor of computing it
246 deprecated_show_value_hack (file
, from_tty
, c
, get_inferior_args ());
250 /* Compute command-line string given argument vector. This does the
251 same shell processing as fork_inferior. */
253 construct_inferior_arguments (struct gdbarch
*gdbarch
, int argc
, char **argv
)
257 if (STARTUP_WITH_SHELL
)
259 /* This holds all the characters considered special to the
260 typical Unix shells. We include `^' because the SunOS
261 /bin/sh treats it as a synonym for `|'. */
262 char *special
= "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n";
267 /* We over-compute the size. It shouldn't matter. */
268 for (i
= 0; i
< argc
; ++i
)
269 length
+= 3 * strlen (argv
[i
]) + 1 + 2 * (argv
[i
][0] == '\0');
271 result
= (char *) xmalloc (length
);
274 for (i
= 0; i
< argc
; ++i
)
279 /* Need to handle empty arguments specially. */
280 if (argv
[i
][0] == '\0')
287 for (cp
= argv
[i
]; *cp
; ++cp
)
291 /* A newline cannot be quoted with a backslash (it
292 just disappears), only by putting it inside
300 if (strchr (special
, *cp
) != NULL
)
311 /* In this case we can't handle arguments that contain spaces,
312 tabs, or newlines -- see breakup_args(). */
316 for (i
= 0; i
< argc
; ++i
)
318 char *cp
= strchr (argv
[i
], ' ');
320 cp
= strchr (argv
[i
], '\t');
322 cp
= strchr (argv
[i
], '\n');
324 error (_("can't handle command-line argument containing whitespace"));
325 length
+= strlen (argv
[i
]) + 1;
328 result
= (char *) xmalloc (length
);
330 for (i
= 0; i
< argc
; ++i
)
333 strcat (result
, " ");
334 strcat (result
, argv
[i
]);
342 /* This function detects whether or not a '&' character (indicating
343 background execution) has been added as *the last* of the arguments ARGS
344 of a command. If it has, it removes it and returns 1. Otherwise it
345 does nothing and returns 0. */
347 strip_bg_char (char **args
)
351 p
= strchr (*args
, '&');
355 if (p
== (*args
+ strlen (*args
) - 1))
357 if (strlen (*args
) > 1)
361 while (*p
== ' ' || *p
== '\t');
373 tty_command (char *file
, int from_tty
)
376 error_no_arg (_("terminal name for running target process"));
378 set_inferior_io_terminal (file
);
381 /* Common actions to take after creating any sort of inferior, by any
382 means (running, attaching, connecting, et cetera). The target
383 should be stopped. */
386 post_create_inferior (struct target_ops
*target
, int from_tty
)
388 /* Be sure we own the terminal in case write operations are performed. */
389 target_terminal_ours ();
391 /* If the target hasn't taken care of this already, do it now.
392 Targets which need to access registers during to_open,
393 to_create_inferior, or to_attach should do it earlier; but many
395 target_find_description ();
397 /* If the solist is global across processes, there's no need to
399 if (exec_bfd
&& !gdbarch_has_global_solist (target_gdbarch
))
401 /* Sometimes the platform-specific hook loads initial shared
402 libraries, and sometimes it doesn't. Try to do so first, so
403 that we can add them with the correct value for FROM_TTY.
404 If we made all the inferior hook methods consistent,
405 this call could be removed. */
407 SOLIB_ADD (NULL
, from_tty
, target
, auto_solib_add
);
409 solib_add (NULL
, from_tty
, target
, auto_solib_add
);
415 /* Create the hooks to handle shared library load and unload
417 #ifdef SOLIB_CREATE_INFERIOR_HOOK
418 SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid
));
420 solib_create_inferior_hook ();
424 observer_notify_inferior_created (target
, from_tty
);
427 /* Kill the inferior if already running. This function is designed
428 to be called when we are about to start the execution of the program
429 from the beginning. Ask the user to confirm that he wants to restart
430 the program being debugged when FROM_TTY is non-null. */
433 kill_if_already_running (int from_tty
)
435 if (! ptid_equal (inferior_ptid
, null_ptid
) && target_has_execution
)
437 /* Bail out before killing the program if we will not be able to
439 target_require_runnable ();
442 && !query (_("The program being debugged has been started already.\n\
443 Start it from the beginning? ")))
444 error (_("Program not restarted."));
449 /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert
450 a temporary breakpoint at the begining of the main program before
451 running the program. */
454 run_command_1 (char *args
, int from_tty
, int tbreak_at_main
)
457 struct cleanup
*old_chain
;
462 kill_if_already_running (from_tty
);
464 init_wait_for_inferior ();
465 clear_breakpoint_hit_counts ();
467 /* Clean up any leftovers from other runs. Some other things from
468 this function should probably be moved into target_pre_inferior. */
469 target_pre_inferior (from_tty
);
471 /* The comment here used to read, "The exec file is re-read every
472 time we do a generic_mourn_inferior, so we just have to worry
473 about the symbol file." The `generic_mourn_inferior' function
474 gets called whenever the program exits. However, suppose the
475 program exits, and *then* the executable file changes? We need
476 to check again here. Since reopen_exec_file doesn't do anything
477 if the timestamp hasn't changed, I don't see the harm. */
481 /* Insert the temporary breakpoint if a location was specified. */
483 tbreak_command (main_name (), 0);
485 exec_file
= (char *) get_exec_file (0);
487 if (non_stop
&& !target_supports_non_stop ())
488 error (_("The target does not support running in non-stop mode."));
490 /* We keep symbols from add-symbol-file, on the grounds that the
491 user might want to add some symbols before running the program
492 (right?). But sometimes (dynamic loading where the user manually
493 introduces the new symbols with add-symbol-file), the code which
494 the symbols describe does not persist between runs. Currently
495 the user has to manually nuke all symbols between runs if they
496 want them to go away (PR 2207). This is probably reasonable. */
500 if (target_can_async_p ())
501 async_disable_stdin ();
505 int async_exec
= strip_bg_char (&args
);
507 /* If we get a request for running in the bg but the target
508 doesn't support it, error out. */
509 if (async_exec
&& !target_can_async_p ())
510 error (_("Asynchronous execution not supported on this target."));
512 /* If we don't get a request of running in the bg, then we need
513 to simulate synchronous (fg) execution. */
514 if (!async_exec
&& target_can_async_p ())
516 /* Simulate synchronous execution */
517 async_disable_stdin ();
520 /* If there were other args, beside '&', process them. */
523 char *old_args
= set_inferior_args (xstrdup (args
));
530 ui_out_field_string (uiout
, NULL
, "Starting program");
531 ui_out_text (uiout
, ": ");
533 ui_out_field_string (uiout
, "execfile", exec_file
);
534 ui_out_spaces (uiout
, 1);
535 /* We call get_inferior_args() because we might need to compute
537 ui_out_field_string (uiout
, "infargs", get_inferior_args ());
538 ui_out_text (uiout
, "\n");
539 ui_out_flush (uiout
);
542 /* We call get_inferior_args() because we might need to compute
544 target_create_inferior (exec_file
, get_inferior_args (),
545 environ_vector (inferior_environ
), from_tty
);
547 /* We're starting off a new process. When we get out of here, in
548 non-stop mode, finish the state of all threads of that process,
549 but leave other threads alone, as they may be stopped in internal
550 events --- the frontend shouldn't see them as stopped. In
551 all-stop, always finish the state of all threads, as we may be
552 resuming more than just the new process. */
554 ptid
= pid_to_ptid (ptid_get_pid (inferior_ptid
));
556 ptid
= minus_one_ptid
;
557 old_chain
= make_cleanup (finish_thread_state_cleanup
, &ptid
);
559 /* Pass zero for FROM_TTY, because at this point the "run" command
560 has done its thing; now we are setting up the running program. */
561 post_create_inferior (¤t_target
, 0);
563 /* Start the target running. */
564 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_0
, 0);
566 /* Since there was no error, there's no need to finish the thread
568 discard_cleanups (old_chain
);
572 run_command (char *args
, int from_tty
)
574 run_command_1 (args
, from_tty
, 0);
578 run_no_args_command (char *args
, int from_tty
)
580 char *old_args
= set_inferior_args (xstrdup (""));
585 /* Start the execution of the program up until the beginning of the main
589 start_command (char *args
, int from_tty
)
591 /* Some languages such as Ada need to search inside the program
592 minimal symbols for the location where to put the temporary
593 breakpoint before starting. */
594 if (!have_minimal_symbols ())
595 error (_("No symbol table loaded. Use the \"file\" command."));
597 /* Run the program until reaching the main procedure... */
598 run_command_1 (args
, from_tty
, 1);
602 proceed_thread_callback (struct thread_info
*thread
, void *arg
)
604 /* We go through all threads individually instead of compressing
605 into a single target `resume_all' request, because some threads
606 may be stopped in internal breakpoints/events, or stopped waiting
607 for its turn in the displaced stepping queue (that is, they are
608 running && !executing). The target side has no idea about why
609 the thread is stopped, so a `resume_all' command would resume too
610 much. If/when GDB gains a way to tell the target `hold this
611 thread stopped until I say otherwise', then we can optimize
613 if (!is_stopped (thread
->ptid
))
616 switch_to_thread (thread
->ptid
);
617 clear_proceed_status ();
618 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
623 continue_1 (int all_threads
)
627 if (non_stop
&& all_threads
)
629 /* Don't error out if the current thread is running, because
630 there may be other stopped threads. */
631 struct cleanup
*old_chain
;
633 /* Backup current thread and selected frame. */
634 old_chain
= make_cleanup_restore_current_thread ();
636 iterate_over_threads (proceed_thread_callback
, NULL
);
638 /* Restore selected ptid. */
639 do_cleanups (old_chain
);
643 ensure_not_running ();
644 clear_proceed_status ();
645 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
649 /* continue [-a] [proceed-count] [&] */
651 continue_command (char *args
, int from_tty
)
657 /* Find out whether we must run in the background. */
659 async_exec
= strip_bg_char (&args
);
661 /* If we must run in the background, but the target can't do it,
663 if (async_exec
&& !target_can_async_p ())
664 error (_("Asynchronous execution not supported on this target."));
666 /* If we are not asked to run in the bg, then prepare to run in the
667 foreground, synchronously. */
668 if (!async_exec
&& target_can_async_p ())
670 /* Simulate synchronous execution */
671 async_disable_stdin ();
676 if (strncmp (args
, "-a", sizeof ("-a") - 1) == 0)
679 args
+= sizeof ("-a") - 1;
685 if (!non_stop
&& all_threads
)
686 error (_("`-a' is meaningless in all-stop mode."));
688 if (args
!= NULL
&& all_threads
)
690 Can't resume all threads and specify proceed count simultaneously."));
692 /* If we have an argument left, set proceed count of breakpoint we
699 struct thread_info
*tp
;
702 tp
= find_thread_pid (inferior_ptid
);
706 struct target_waitstatus ws
;
708 get_last_target_status (&last_ptid
, &ws
);
709 tp
= find_thread_pid (last_ptid
);
712 bs
= tp
->stop_bpstat
;
714 while ((stat
= bpstat_num (&bs
, &num
)) != 0)
717 set_ignore_count (num
,
718 parse_and_eval_long (args
) - 1,
720 /* set_ignore_count prints a message ending with a period.
721 So print two spaces before "Continuing.". */
723 printf_filtered (" ");
727 if (!stopped
&& from_tty
)
730 ("Not stopped at any breakpoint; argument ignored.\n");
735 printf_filtered (_("Continuing.\n"));
737 continue_1 (all_threads
);
740 /* Step until outside of current statement. */
743 step_command (char *count_string
, int from_tty
)
745 step_1 (0, 0, count_string
);
748 /* Likewise, but skip over subroutine calls as if single instructions. */
751 next_command (char *count_string
, int from_tty
)
753 step_1 (1, 0, count_string
);
756 /* Likewise, but step only one instruction. */
759 stepi_command (char *count_string
, int from_tty
)
761 step_1 (0, 1, count_string
);
765 nexti_command (char *count_string
, int from_tty
)
767 step_1 (1, 1, count_string
);
771 delete_longjmp_breakpoint_cleanup (void *arg
)
773 int thread
= * (int *) arg
;
774 delete_longjmp_breakpoint (thread
);
778 step_1 (int skip_subroutines
, int single_inst
, char *count_string
)
781 struct frame_info
*frame
;
782 struct cleanup
*cleanups
= make_cleanup (null_cleanup
, NULL
);
787 ensure_not_running ();
790 async_exec
= strip_bg_char (&count_string
);
792 /* If we get a request for running in the bg but the target
793 doesn't support it, error out. */
794 if (async_exec
&& !target_can_async_p ())
795 error (_("Asynchronous execution not supported on this target."));
797 /* If we don't get a request of running in the bg, then we need
798 to simulate synchronous (fg) execution. */
799 if (!async_exec
&& target_can_async_p ())
801 /* Simulate synchronous execution */
802 async_disable_stdin ();
805 count
= count_string
? parse_and_eval_long (count_string
) : 1;
807 if (!single_inst
|| skip_subroutines
) /* leave si command alone */
809 if (in_thread_list (inferior_ptid
))
810 thread
= pid_to_thread_id (inferior_ptid
);
812 set_longjmp_breakpoint ();
814 make_cleanup (delete_longjmp_breakpoint_cleanup
, &thread
);
817 /* In synchronous case, all is well; each step_once call will step once. */
818 if (!target_can_async_p ())
820 for (; count
> 0; count
--)
822 struct thread_info
*tp
;
823 step_once (skip_subroutines
, single_inst
, count
, thread
);
825 if (target_has_execution
826 && !ptid_equal (inferior_ptid
, null_ptid
))
827 tp
= inferior_thread ();
831 if (!tp
|| !tp
->stop_step
|| !tp
->step_multi
)
833 /* If we stopped for some reason that is not stepping
834 there are no further steps to make. */
841 do_cleanups (cleanups
);
845 /* In the case of an asynchronous target things get complicated;
846 do only one step for now, before returning control to the
847 event loop. Let the continuation figure out how many other
848 steps we need to do, and handle them one at the time, through
850 step_once (skip_subroutines
, single_inst
, count
, thread
);
852 /* We are running, and the continuation is installed. It will
853 disable the longjmp breakpoint as appropriate. */
854 discard_cleanups (cleanups
);
858 struct step_1_continuation_args
861 int skip_subroutines
;
866 /* Called after we are done with one step operation, to check whether
867 we need to step again, before we print the prompt and return control
868 to the user. If count is > 1, we will need to do one more call to
869 proceed(), via step_once(). Basically it is like step_once and
870 step_1_continuation are co-recursive. */
872 step_1_continuation (void *args
)
874 struct step_1_continuation_args
*a
= args
;
876 if (target_has_execution
)
878 struct thread_info
*tp
;
880 tp
= inferior_thread ();
881 if (tp
->step_multi
&& tp
->stop_step
)
883 /* There are more steps to make, and we did stop due to
884 ending a stepping range. Do another step. */
885 step_once (a
->skip_subroutines
, a
->single_inst
,
886 a
->count
- 1, a
->thread
);
892 /* We either stopped for some reason that is not stepping, or there
893 are no further steps to make. Cleanup. */
894 if (!a
->single_inst
|| a
->skip_subroutines
)
895 delete_longjmp_breakpoint (a
->thread
);
898 /* Do just one step operation. This is useful to implement the 'step
899 n' kind of commands. In case of asynchronous targets, we will have
900 to set up a continuation to be done after the target stops (after
901 this one step). For synch targets, the caller handles further
905 step_once (int skip_subroutines
, int single_inst
, int count
, int thread
)
907 struct frame_info
*frame
;
911 /* Don't assume THREAD is a valid thread id. It is set to -1 if
912 the longjmp breakpoint was not required. Use the
913 INFERIOR_PTID thread instead, which is the same thread when
915 struct thread_info
*tp
= inferior_thread ();
916 clear_proceed_status ();
918 frame
= get_current_frame ();
919 tp
->step_frame_id
= get_frame_id (frame
);
925 pc
= get_frame_pc (frame
);
926 find_pc_line_pc_range (pc
,
927 &tp
->step_range_start
, &tp
->step_range_end
);
929 /* If we have no line info, switch to stepi mode. */
930 if (tp
->step_range_end
== 0 && step_stop_if_no_debug
)
932 tp
->step_range_start
= tp
->step_range_end
= 1;
934 else if (tp
->step_range_end
== 0)
937 if (find_pc_partial_function (pc
, &name
,
938 &tp
->step_range_start
,
939 &tp
->step_range_end
) == 0)
940 error (_("Cannot find bounds of current function"));
942 target_terminal_ours ();
943 printf_filtered (_("\
944 Single stepping until exit from function %s, \n\
945 which has no line number information.\n"), name
);
950 /* Say we are stepping, but stop after one insn whatever it does. */
951 tp
->step_range_start
= tp
->step_range_end
= 1;
952 if (!skip_subroutines
)
954 Don't step over function calls, not even to functions lacking
956 tp
->step_over_calls
= STEP_OVER_NONE
;
959 if (skip_subroutines
)
960 tp
->step_over_calls
= STEP_OVER_ALL
;
962 tp
->step_multi
= (count
> 1);
963 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
965 /* For async targets, register a continuation to do any
966 additional steps. For sync targets, the caller will handle
968 if (target_can_async_p ())
970 struct step_1_continuation_args
*args
;
972 args
= xmalloc (sizeof (*args
));
973 args
->skip_subroutines
= skip_subroutines
;
974 args
->single_inst
= single_inst
;
976 args
->thread
= thread
;
978 add_intermediate_continuation (tp
, step_1_continuation
, args
, xfree
);
984 /* Continue program at specified address. */
987 jump_command (char *arg
, int from_tty
)
990 struct symtabs_and_lines sals
;
991 struct symtab_and_line sal
;
997 ensure_not_running ();
999 /* Find out whether we must run in the background. */
1001 async_exec
= strip_bg_char (&arg
);
1003 /* If we must run in the background, but the target can't do it,
1005 if (async_exec
&& !target_can_async_p ())
1006 error (_("Asynchronous execution not supported on this target."));
1009 error_no_arg (_("starting address"));
1011 sals
= decode_line_spec_1 (arg
, 1);
1012 if (sals
.nelts
!= 1)
1014 error (_("Unreasonable jump request"));
1020 if (sal
.symtab
== 0 && sal
.pc
== 0)
1021 error (_("No source file has been specified."));
1023 resolve_sal_pc (&sal
); /* May error out */
1025 /* See if we are trying to jump to another function. */
1026 fn
= get_frame_function (get_current_frame ());
1027 sfn
= find_pc_function (sal
.pc
);
1028 if (fn
!= NULL
&& sfn
!= fn
)
1030 if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal
.line
,
1031 SYMBOL_PRINT_NAME (fn
)))
1033 error (_("Not confirmed."));
1040 fixup_symbol_section (sfn
, 0);
1041 if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn
)) &&
1042 !section_is_mapped (SYMBOL_OBJ_SECTION (sfn
)))
1044 if (!query (_("WARNING!!! Destination is in unmapped overlay! Jump anyway? ")))
1046 error (_("Not confirmed."));
1056 printf_filtered (_("Continuing at "));
1057 fputs_filtered (paddress (addr
), gdb_stdout
);
1058 printf_filtered (".\n");
1061 /* If we are not asked to run in the bg, then prepare to run in the
1062 foreground, synchronously. */
1063 if (!async_exec
&& target_can_async_p ())
1065 /* Simulate synchronous execution */
1066 async_disable_stdin ();
1069 clear_proceed_status ();
1070 proceed (addr
, TARGET_SIGNAL_0
, 0);
1074 /* Go to line or address in current procedure */
1076 go_command (char *line_no
, int from_tty
)
1078 if (line_no
== (char *) NULL
|| !*line_no
)
1079 printf_filtered (_("Usage: go <location>\n"));
1082 tbreak_command (line_no
, from_tty
);
1083 jump_command (line_no
, from_tty
);
1088 /* Continue program giving it specified signal. */
1091 signal_command (char *signum_exp
, int from_tty
)
1093 enum target_signal oursig
;
1096 dont_repeat (); /* Too dangerous. */
1098 ensure_not_running ();
1100 /* Find out whether we must run in the background. */
1101 if (signum_exp
!= NULL
)
1102 async_exec
= strip_bg_char (&signum_exp
);
1104 /* If we must run in the background, but the target can't do it,
1106 if (async_exec
&& !target_can_async_p ())
1107 error (_("Asynchronous execution not supported on this target."));
1109 /* If we are not asked to run in the bg, then prepare to run in the
1110 foreground, synchronously. */
1111 if (!async_exec
&& target_can_async_p ())
1113 /* Simulate synchronous execution. */
1114 async_disable_stdin ();
1118 error_no_arg (_("signal number"));
1120 /* It would be even slicker to make signal names be valid expressions,
1121 (the type could be "enum $signal" or some such), then the user could
1122 assign them to convenience variables. */
1123 oursig
= target_signal_from_name (signum_exp
);
1125 if (oursig
== TARGET_SIGNAL_UNKNOWN
)
1127 /* No, try numeric. */
1128 int num
= parse_and_eval_long (signum_exp
);
1131 oursig
= TARGET_SIGNAL_0
;
1133 oursig
= target_signal_from_command (num
);
1138 if (oursig
== TARGET_SIGNAL_0
)
1139 printf_filtered (_("Continuing with no signal.\n"));
1141 printf_filtered (_("Continuing with signal %s.\n"),
1142 target_signal_to_name (oursig
));
1145 clear_proceed_status ();
1146 proceed ((CORE_ADDR
) -1, oursig
, 0);
1149 /* Proceed until we reach a different source line with pc greater than
1150 our current one or exit the function. We skip calls in both cases.
1152 Note that eventually this command should probably be changed so
1153 that only source lines are printed out when we hit the breakpoint
1154 we set. This may involve changes to wait_for_inferior and the
1155 proceed status code. */
1158 until_next_command (int from_tty
)
1160 struct frame_info
*frame
;
1162 struct symbol
*func
;
1163 struct symtab_and_line sal
;
1164 struct thread_info
*tp
= inferior_thread ();
1166 clear_proceed_status ();
1168 frame
= get_current_frame ();
1170 /* Step until either exited from this function or greater
1171 than the current line (if in symbolic section) or pc (if
1174 pc
= get_frame_pc (frame
);
1175 func
= find_pc_function (pc
);
1179 struct minimal_symbol
*msymbol
= lookup_minimal_symbol_by_pc (pc
);
1181 if (msymbol
== NULL
)
1182 error (_("Execution is not within a known function."));
1184 tp
->step_range_start
= SYMBOL_VALUE_ADDRESS (msymbol
);
1185 tp
->step_range_end
= pc
;
1189 sal
= find_pc_line (pc
, 0);
1191 tp
->step_range_start
= BLOCK_START (SYMBOL_BLOCK_VALUE (func
));
1192 tp
->step_range_end
= sal
.end
;
1195 tp
->step_over_calls
= STEP_OVER_ALL
;
1196 tp
->step_frame_id
= get_frame_id (frame
);
1198 tp
->step_multi
= 0; /* Only one call to proceed */
1200 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
1204 until_command (char *arg
, int from_tty
)
1208 if (!target_has_execution
)
1209 error (_("The program is not running."));
1211 /* Find out whether we must run in the background. */
1213 async_exec
= strip_bg_char (&arg
);
1215 /* If we must run in the background, but the target can't do it,
1217 if (async_exec
&& !target_can_async_p ())
1218 error (_("Asynchronous execution not supported on this target."));
1220 /* If we are not asked to run in the bg, then prepare to run in the
1221 foreground, synchronously. */
1222 if (!async_exec
&& target_can_async_p ())
1224 /* Simulate synchronous execution */
1225 async_disable_stdin ();
1229 until_break_command (arg
, from_tty
, 0);
1231 until_next_command (from_tty
);
1235 advance_command (char *arg
, int from_tty
)
1239 if (!target_has_execution
)
1240 error (_("The program is not running."));
1243 error_no_arg (_("a location"));
1245 /* Find out whether we must run in the background. */
1247 async_exec
= strip_bg_char (&arg
);
1249 /* If we must run in the background, but the target can't do it,
1251 if (async_exec
&& !target_can_async_p ())
1252 error (_("Asynchronous execution not supported on this target."));
1254 /* If we are not asked to run in the bg, then prepare to run in the
1255 foreground, synchronously. */
1256 if (!async_exec
&& target_can_async_p ())
1258 /* Simulate synchronous execution. */
1259 async_disable_stdin ();
1262 until_break_command (arg
, from_tty
, 1);
1265 /* Print the result of a function at the end of a 'finish' command. */
1268 print_return_value (struct type
*func_type
, struct type
*value_type
)
1270 struct gdbarch
*gdbarch
= current_gdbarch
;
1271 struct cleanup
*old_chain
;
1272 struct ui_stream
*stb
;
1273 struct value
*value
;
1275 CHECK_TYPEDEF (value_type
);
1276 gdb_assert (TYPE_CODE (value_type
) != TYPE_CODE_VOID
);
1278 /* FIXME: 2003-09-27: When returning from a nested inferior function
1279 call, it's possible (with no help from the architecture vector)
1280 to locate and return/print a "struct return" value. This is just
1281 a more complicated case of what is already being done in in the
1282 inferior function call code. In fact, when inferior function
1283 calls are made async, this will likely be made the norm. */
1285 switch (gdbarch_return_value (gdbarch
, func_type
, value_type
,
1288 case RETURN_VALUE_REGISTER_CONVENTION
:
1289 case RETURN_VALUE_ABI_RETURNS_ADDRESS
:
1290 case RETURN_VALUE_ABI_PRESERVES_ADDRESS
:
1291 value
= allocate_value (value_type
);
1292 gdbarch_return_value (gdbarch
, func_type
, value_type
, stop_registers
,
1293 value_contents_raw (value
), NULL
);
1295 case RETURN_VALUE_STRUCT_CONVENTION
:
1299 internal_error (__FILE__
, __LINE__
, _("bad switch"));
1304 struct value_print_options opts
;
1307 stb
= ui_out_stream_new (uiout
);
1308 old_chain
= make_cleanup_ui_out_stream_delete (stb
);
1309 ui_out_text (uiout
, "Value returned is ");
1310 ui_out_field_fmt (uiout
, "gdb-result-var", "$%d",
1311 record_latest_value (value
));
1312 ui_out_text (uiout
, " = ");
1313 get_raw_print_options (&opts
);
1314 value_print (value
, stb
->stream
, &opts
);
1315 ui_out_field_stream (uiout
, "return-value", stb
);
1316 ui_out_text (uiout
, "\n");
1317 do_cleanups (old_chain
);
1321 ui_out_text (uiout
, "Value returned has type: ");
1322 ui_out_field_string (uiout
, "return-type", TYPE_NAME (value_type
));
1323 ui_out_text (uiout
, ".");
1324 ui_out_text (uiout
, " Cannot determine contents\n");
1328 /* Stuff that needs to be done by the finish command after the target
1329 has stopped. In asynchronous mode, we wait for the target to stop
1330 in the call to poll or select in the event loop, so it is
1331 impossible to do all the stuff as part of the finish_command
1332 function itself. The only chance we have to complete this command
1333 is in fetch_inferior_event, which is called by the event loop as
1334 soon as it detects that the target has stopped. This function is
1335 called via the cmd_continuation pointer. */
1337 struct finish_command_continuation_args
1339 struct breakpoint
*breakpoint
;
1340 struct symbol
*function
;
1344 finish_command_continuation (void *arg
)
1346 struct finish_command_continuation_args
*a
= arg
;
1347 struct thread_info
*tp
= NULL
;
1350 if (!ptid_equal (inferior_ptid
, null_ptid
)
1351 && target_has_execution
1352 && is_stopped (inferior_ptid
))
1354 tp
= inferior_thread ();
1355 bs
= tp
->stop_bpstat
;
1358 if (bpstat_find_breakpoint (bs
, a
->breakpoint
) != NULL
1359 && a
->function
!= NULL
)
1361 struct type
*value_type
;
1363 value_type
= TYPE_TARGET_TYPE (SYMBOL_TYPE (a
->function
));
1365 internal_error (__FILE__
, __LINE__
,
1366 _("finish_command: function has no target type"));
1368 if (TYPE_CODE (value_type
) != TYPE_CODE_VOID
)
1369 print_return_value (SYMBOL_TYPE (a
->function
), value_type
);
1372 /* We suppress normal call of normal_stop observer and do it here so
1373 that the *stopped notification includes the return value. */
1374 if (bs
!= NULL
&& tp
->proceed_to_finish
)
1375 observer_notify_normal_stop (bs
, 1 /* print frame */);
1376 delete_breakpoint (a
->breakpoint
);
1380 finish_command_continuation_free_arg (void *arg
)
1385 /* finish_backward -- helper function for finish_command. */
1388 finish_backward (struct symbol
*function
)
1390 struct symtab_and_line sal
;
1391 struct thread_info
*tp
= inferior_thread ();
1392 struct breakpoint
*breakpoint
;
1393 struct cleanup
*old_chain
;
1395 CORE_ADDR func_addr
;
1398 pc
= get_frame_pc (get_current_frame ());
1400 if (find_pc_partial_function (pc
, NULL
, &func_addr
, NULL
) == 0)
1401 internal_error (__FILE__
, __LINE__
,
1402 _("Finish: couldn't find function."));
1404 sal
= find_pc_line (func_addr
, 0);
1406 /* We don't need a return value. */
1407 tp
->proceed_to_finish
= 0;
1408 /* Special case: if we're sitting at the function entry point,
1409 then all we need to do is take a reverse singlestep. We
1410 don't need to set a breakpoint, and indeed it would do us
1413 Note that this can only happen at frame #0, since there's
1414 no way that a function up the stack can have a return address
1415 that's equal to its entry point. */
1419 /* Set breakpoint and continue. */
1421 set_momentary_breakpoint (sal
,
1422 get_frame_id (get_selected_frame (NULL
)),
1424 /* Tell the breakpoint to keep quiet. We won't be done
1425 until we've done another reverse single-step. */
1426 make_breakpoint_silent (breakpoint
);
1427 old_chain
= make_cleanup_delete_breakpoint (breakpoint
);
1428 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
1429 /* We will be stopped when proceed returns. */
1430 back_up
= bpstat_find_breakpoint (tp
->stop_bpstat
, breakpoint
) != NULL
;
1431 do_cleanups (old_chain
);
1437 /* If in fact we hit the step-resume breakpoint (and not
1438 some other breakpoint), then we're almost there --
1439 we just need to back up by one more single-step. */
1440 tp
->step_range_start
= tp
->step_range_end
= 1;
1441 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
1446 /* finish_forward -- helper function for finish_command. */
1449 finish_forward (struct symbol
*function
, struct frame_info
*frame
)
1451 struct symtab_and_line sal
;
1452 struct thread_info
*tp
= inferior_thread ();
1453 struct breakpoint
*breakpoint
;
1454 struct cleanup
*old_chain
;
1455 struct finish_command_continuation_args
*cargs
;
1457 sal
= find_pc_line (get_frame_pc (frame
), 0);
1458 sal
.pc
= get_frame_pc (frame
);
1460 breakpoint
= set_momentary_breakpoint (sal
, get_frame_id (frame
),
1463 old_chain
= make_cleanup_delete_breakpoint (breakpoint
);
1465 tp
->proceed_to_finish
= 1; /* We want stop_registers, please... */
1466 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
1468 cargs
= xmalloc (sizeof (*cargs
));
1470 cargs
->breakpoint
= breakpoint
;
1471 cargs
->function
= function
;
1472 add_continuation (tp
, finish_command_continuation
, cargs
,
1473 finish_command_continuation_free_arg
);
1475 discard_cleanups (old_chain
);
1476 if (!target_can_async_p ())
1477 do_all_continuations ();
1480 /* "finish": Set a temporary breakpoint at the place the selected
1481 frame will return to, then continue. */
1484 finish_command (char *arg
, int from_tty
)
1486 struct frame_info
*frame
;
1487 struct symbol
*function
;
1491 /* Find out whether we must run in the background. */
1493 async_exec
= strip_bg_char (&arg
);
1495 /* If we must run in the background, but the target can't do it,
1497 if (async_exec
&& !target_can_async_p ())
1498 error (_("Asynchronous execution not supported on this target."));
1500 /* Don't try to async in reverse. */
1501 if (async_exec
&& execution_direction
== EXEC_REVERSE
)
1502 error (_("Asynchronous 'finish' not supported in reverse."));
1504 /* If we are not asked to run in the bg, then prepare to run in the
1505 foreground, synchronously. */
1506 if (!async_exec
&& target_can_async_p ())
1508 /* Simulate synchronous execution. */
1509 async_disable_stdin ();
1513 error (_("The \"finish\" command does not take any arguments."));
1514 if (!target_has_execution
)
1515 error (_("The program is not running."));
1517 frame
= get_prev_frame (get_selected_frame (_("No selected frame.")));
1519 error (_("\"finish\" not meaningful in the outermost frame."));
1521 clear_proceed_status ();
1523 /* Find the function we will return from. */
1525 function
= find_pc_function (get_frame_pc (get_selected_frame (NULL
)));
1527 /* Print info on the selected frame, including level number but not
1531 if (execution_direction
== EXEC_REVERSE
)
1532 printf_filtered (_("Run back to call of "));
1534 printf_filtered (_("Run till exit from "));
1536 print_stack_frame (get_selected_frame (NULL
), 1, LOCATION
);
1539 if (execution_direction
== EXEC_REVERSE
)
1540 finish_backward (function
);
1542 finish_forward (function
, frame
);
1547 program_info (char *args
, int from_tty
)
1551 struct thread_info
*tp
;
1554 if (!target_has_execution
)
1556 printf_filtered (_("The program being debugged is not being run.\n"));
1561 ptid
= inferior_ptid
;
1564 struct target_waitstatus ws
;
1565 get_last_target_status (&ptid
, &ws
);
1568 if (ptid_equal (ptid
, null_ptid
) || is_exited (ptid
))
1569 error (_("Invalid selected thread."));
1570 else if (is_running (ptid
))
1571 error (_("Selected thread is running."));
1573 tp
= find_thread_pid (ptid
);
1574 bs
= tp
->stop_bpstat
;
1575 stat
= bpstat_num (&bs
, &num
);
1577 target_files_info ();
1578 printf_filtered (_("Program stopped at %s.\n"), paddress (stop_pc
));
1580 printf_filtered (_("It stopped after being stepped.\n"));
1583 /* There may be several breakpoints in the same place, so this
1584 isn't as strange as it seems. */
1589 printf_filtered (_("\
1590 It stopped at a breakpoint that has since been deleted.\n"));
1593 printf_filtered (_("It stopped at breakpoint %d.\n"), num
);
1594 stat
= bpstat_num (&bs
, &num
);
1597 else if (tp
->stop_signal
!= TARGET_SIGNAL_0
)
1599 printf_filtered (_("It stopped with signal %s, %s.\n"),
1600 target_signal_to_name (tp
->stop_signal
),
1601 target_signal_to_string (tp
->stop_signal
));
1606 printf_filtered (_("\
1607 Type \"info stack\" or \"info registers\" for more information.\n"));
1612 environment_info (char *var
, int from_tty
)
1616 char *val
= get_in_environ (inferior_environ
, var
);
1619 puts_filtered (var
);
1620 puts_filtered (" = ");
1621 puts_filtered (val
);
1622 puts_filtered ("\n");
1626 puts_filtered ("Environment variable \"");
1627 puts_filtered (var
);
1628 puts_filtered ("\" not defined.\n");
1633 char **vector
= environ_vector (inferior_environ
);
1636 puts_filtered (*vector
++);
1637 puts_filtered ("\n");
1643 set_environment_command (char *arg
, int from_tty
)
1645 char *p
, *val
, *var
;
1649 error_no_arg (_("environment variable and value"));
1651 /* Find seperation between variable name and value */
1652 p
= (char *) strchr (arg
, '=');
1653 val
= (char *) strchr (arg
, ' ');
1655 if (p
!= 0 && val
!= 0)
1657 /* We have both a space and an equals. If the space is before the
1658 equals, walk forward over the spaces til we see a nonspace
1659 (possibly the equals). */
1664 /* Now if the = is after the char following the spaces,
1665 take the char following the spaces. */
1669 else if (val
!= 0 && p
== 0)
1673 error_no_arg (_("environment variable to set"));
1675 if (p
== 0 || p
[1] == 0)
1679 p
= arg
+ strlen (arg
); /* So that savestring below will work */
1683 /* Not setting variable value to null */
1685 while (*val
== ' ' || *val
== '\t')
1689 while (p
!= arg
&& (p
[-1] == ' ' || p
[-1] == '\t'))
1692 var
= savestring (arg
, p
- arg
);
1695 printf_filtered (_("\
1696 Setting environment variable \"%s\" to null value.\n"),
1698 set_in_environ (inferior_environ
, var
, "");
1701 set_in_environ (inferior_environ
, var
, val
);
1706 unset_environment_command (char *var
, int from_tty
)
1710 /* If there is no argument, delete all environment variables.
1711 Ask for confirmation if reading from the terminal. */
1712 if (!from_tty
|| query (_("Delete all environment variables? ")))
1714 free_environ (inferior_environ
);
1715 inferior_environ
= make_environ ();
1719 unset_in_environ (inferior_environ
, var
);
1722 /* Handle the execution path (PATH variable) */
1724 static const char path_var_name
[] = "PATH";
1727 path_info (char *args
, int from_tty
)
1729 puts_filtered ("Executable and object file path: ");
1730 puts_filtered (get_in_environ (inferior_environ
, path_var_name
));
1731 puts_filtered ("\n");
1734 /* Add zero or more directories to the front of the execution path. */
1737 path_command (char *dirname
, int from_tty
)
1742 env
= get_in_environ (inferior_environ
, path_var_name
);
1743 /* Can be null if path is not set */
1746 exec_path
= xstrdup (env
);
1747 mod_path (dirname
, &exec_path
);
1748 set_in_environ (inferior_environ
, path_var_name
, exec_path
);
1751 path_info ((char *) NULL
, from_tty
);
1755 /* Print out the machine register regnum. If regnum is -1, print all
1756 registers (print_all == 1) or all non-float and non-vector
1757 registers (print_all == 0).
1759 For most machines, having all_registers_info() print the
1760 register(s) one per line is good enough. If a different format is
1761 required, (eg, for MIPS or Pyramid 90x, which both have lots of
1762 regs), or there is an existing convention for showing all the
1763 registers, define the architecture method PRINT_REGISTERS_INFO to
1764 provide that format. */
1767 default_print_registers_info (struct gdbarch
*gdbarch
,
1768 struct ui_file
*file
,
1769 struct frame_info
*frame
,
1770 int regnum
, int print_all
)
1773 const int numregs
= gdbarch_num_regs (gdbarch
)
1774 + gdbarch_num_pseudo_regs (gdbarch
);
1775 gdb_byte buffer
[MAX_REGISTER_SIZE
];
1777 for (i
= 0; i
< numregs
; i
++)
1779 /* Decide between printing all regs, non-float / vector regs, or
1785 if (!gdbarch_register_reggroup_p (gdbarch
, i
, all_reggroup
))
1790 if (!gdbarch_register_reggroup_p (gdbarch
, i
, general_reggroup
))
1800 /* If the register name is empty, it is undefined for this
1801 processor, so don't display anything. */
1802 if (gdbarch_register_name (gdbarch
, i
) == NULL
1803 || *(gdbarch_register_name (gdbarch
, i
)) == '\0')
1806 fputs_filtered (gdbarch_register_name (gdbarch
, i
), file
);
1807 print_spaces_filtered (15 - strlen (gdbarch_register_name
1808 (gdbarch
, i
)), file
);
1810 /* Get the data in raw format. */
1811 if (! frame_register_read (frame
, i
, buffer
))
1813 fprintf_filtered (file
, "*value not available*\n");
1817 /* If virtual format is floating, print it that way, and in raw
1819 if (TYPE_CODE (register_type (gdbarch
, i
)) == TYPE_CODE_FLT
1820 || TYPE_CODE (register_type (gdbarch
, i
)) == TYPE_CODE_DECFLOAT
)
1823 struct value_print_options opts
;
1825 get_user_print_options (&opts
);
1827 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1828 file
, 0, &opts
, current_language
);
1830 fprintf_filtered (file
, "\t(raw 0x");
1831 for (j
= 0; j
< register_size (gdbarch
, i
); j
++)
1834 if (gdbarch_byte_order (gdbarch
) == BFD_ENDIAN_BIG
)
1837 idx
= register_size (gdbarch
, i
) - 1 - j
;
1838 fprintf_filtered (file
, "%02x", (unsigned char) buffer
[idx
]);
1840 fprintf_filtered (file
, ")");
1844 struct value_print_options opts
;
1846 /* Print the register in hex. */
1847 get_formatted_print_options (&opts
, 'x');
1849 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1852 /* If not a vector register, print it also according to its
1854 if (TYPE_VECTOR (register_type (gdbarch
, i
)) == 0)
1856 get_user_print_options (&opts
);
1858 fprintf_filtered (file
, "\t");
1859 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1860 file
, 0, &opts
, current_language
);
1864 fprintf_filtered (file
, "\n");
1869 registers_info (char *addr_exp
, int fpregs
)
1871 struct frame_info
*frame
;
1872 struct gdbarch
*gdbarch
;
1873 int regnum
, numregs
;
1876 if (!target_has_registers
)
1877 error (_("The program has no registers now."));
1878 frame
= get_selected_frame (NULL
);
1879 gdbarch
= get_frame_arch (frame
);
1883 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
1888 while (*addr_exp
!= '\0')
1893 /* Keep skipping leading white space. */
1894 if (isspace ((*addr_exp
)))
1900 /* Discard any leading ``$''. Check that there is something
1901 resembling a register following it. */
1902 if (addr_exp
[0] == '$')
1904 if (isspace ((*addr_exp
)) || (*addr_exp
) == '\0')
1905 error (_("Missing register name"));
1907 /* Find the start/end of this register name/num/group. */
1909 while ((*addr_exp
) != '\0' && !isspace ((*addr_exp
)))
1913 /* Figure out what we've found and display it. */
1915 /* A register name? */
1917 int regnum
= user_reg_map_name_to_regnum (gdbarch
, start
, end
- start
);
1920 /* User registers lie completely outside of the range of
1921 normal registers. Catch them early so that the target
1923 if (regnum
>= gdbarch_num_regs (gdbarch
)
1924 + gdbarch_num_pseudo_regs (gdbarch
))
1926 struct value_print_options opts
;
1927 struct value
*val
= value_of_user_reg (regnum
, frame
);
1929 printf_filtered ("%s: ", start
);
1930 get_formatted_print_options (&opts
, 'x');
1931 print_scalar_formatted (value_contents (val
),
1932 check_typedef (value_type (val
)),
1933 &opts
, 0, gdb_stdout
);
1934 printf_filtered ("\n");
1937 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
1938 frame
, regnum
, fpregs
);
1943 /* A register group? */
1945 struct reggroup
*group
;
1946 for (group
= reggroup_next (gdbarch
, NULL
);
1948 group
= reggroup_next (gdbarch
, group
))
1950 /* Don't bother with a length check. Should the user
1951 enter a short register group name, go with the first
1952 group that matches. */
1953 if (strncmp (start
, reggroup_name (group
), end
- start
) == 0)
1960 regnum
< gdbarch_num_regs (gdbarch
)
1961 + gdbarch_num_pseudo_regs (gdbarch
);
1964 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, group
))
1965 gdbarch_print_registers_info (gdbarch
,
1973 /* Nothing matched. */
1974 error (_("Invalid register `%.*s'"), (int) (end
- start
), start
);
1979 all_registers_info (char *addr_exp
, int from_tty
)
1981 registers_info (addr_exp
, 1);
1985 nofp_registers_info (char *addr_exp
, int from_tty
)
1987 registers_info (addr_exp
, 0);
1991 print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
,
1992 struct frame_info
*frame
, const char *args
)
1994 if (gdbarch_print_vector_info_p (gdbarch
))
1995 gdbarch_print_vector_info (gdbarch
, file
, frame
, args
);
1999 int printed_something
= 0;
2002 regnum
< gdbarch_num_regs (gdbarch
)
2003 + gdbarch_num_pseudo_regs (gdbarch
);
2006 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, vector_reggroup
))
2008 printed_something
= 1;
2009 gdbarch_print_registers_info (gdbarch
, file
, frame
, regnum
, 1);
2012 if (!printed_something
)
2013 fprintf_filtered (file
, "No vector information\n");
2018 vector_info (char *args
, int from_tty
)
2020 if (!target_has_registers
)
2021 error (_("The program has no registers now."));
2023 print_vector_info (current_gdbarch
, gdb_stdout
,
2024 get_selected_frame (NULL
), args
);
2028 /* Used in `attach&' command. ARG is a point to an integer
2029 representing a process id. Proceed threads of this process iff
2030 they stopped due to debugger request, and when they did, they
2031 reported a clean stop (TARGET_SIGNAL_0). Do not proceed threads
2032 that have been explicitly been told to stop. */
2035 proceed_after_attach_callback (struct thread_info
*thread
,
2038 int pid
= * (int *) arg
;
2040 if (ptid_get_pid (thread
->ptid
) == pid
2041 && !is_exited (thread
->ptid
)
2042 && !is_executing (thread
->ptid
)
2043 && !thread
->stop_requested
2044 && thread
->stop_signal
== TARGET_SIGNAL_0
)
2046 switch_to_thread (thread
->ptid
);
2047 clear_proceed_status ();
2048 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
2055 proceed_after_attach (int pid
)
2057 /* Don't error out if the current thread is running, because
2058 there may be other stopped threads. */
2059 struct cleanup
*old_chain
;
2061 /* Backup current thread and selected frame. */
2062 old_chain
= make_cleanup_restore_current_thread ();
2064 iterate_over_threads (proceed_after_attach_callback
, &pid
);
2066 /* Restore selected ptid. */
2067 do_cleanups (old_chain
);
2072 * Should save/restore the tty state since it might be that the
2073 * program to be debugged was started on this tty and it wants
2074 * the tty in some state other than what we want. If it's running
2075 * on another terminal or without a terminal, then saving and
2076 * restoring the tty state is a harmless no-op.
2077 * This only needs to be done if we are attaching to a process.
2082 takes a program started up outside of gdb and ``attaches'' to it.
2083 This stops it cold in its tracks and allows us to start debugging it.
2084 and wait for the trace-trap that results from attaching. */
2087 attach_command_post_wait (char *args
, int from_tty
, int async_exec
)
2090 char *full_exec_path
= NULL
;
2091 struct inferior
*inferior
;
2093 inferior
= current_inferior ();
2094 inferior
->stop_soon
= NO_STOP_QUIETLY
;
2096 /* If no exec file is yet known, try to determine it from the
2098 exec_file
= (char *) get_exec_file (0);
2101 exec_file
= target_pid_to_exec_file (PIDGET (inferior_ptid
));
2104 /* It's possible we don't have a full path, but rather just a
2105 filename. Some targets, such as HP-UX, don't provide the
2108 Attempt to qualify the filename against the source path.
2109 (If that fails, we'll just fall back on the original
2110 filename. Not much more we can do...)
2112 if (!source_full_path_of (exec_file
, &full_exec_path
))
2113 full_exec_path
= savestring (exec_file
, strlen (exec_file
));
2115 exec_file_attach (full_exec_path
, from_tty
);
2116 symbol_file_add_main (full_exec_path
, from_tty
);
2121 reopen_exec_file ();
2125 /* Take any necessary post-attaching actions for this platform. */
2126 target_post_attach (PIDGET (inferior_ptid
));
2128 post_create_inferior (¤t_target
, from_tty
);
2130 /* Install inferior's terminal modes. */
2131 target_terminal_inferior ();
2135 /* The user requested an `attach&', so be sure to leave threads
2136 that didn't get a signal running. */
2138 /* Immediatelly resume all suspended threads of this inferior,
2139 and this inferior only. This should have no effect on
2140 already running threads. If a thread has been stopped with a
2141 signal, leave it be. */
2143 proceed_after_attach (inferior
->pid
);
2146 if (inferior_thread ()->stop_signal
== TARGET_SIGNAL_0
)
2148 clear_proceed_status ();
2149 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
2155 /* The user requested a plain `attach', so be sure to leave
2156 the inferior stopped. */
2158 if (target_can_async_p ())
2159 async_enable_stdin ();
2161 /* At least the current thread is already stopped. */
2163 /* In all-stop, by definition, all threads have to be already
2164 stopped at this point. In non-stop, however, although the
2165 selected thread is stopped, others may still be executing.
2166 Be sure to explicitly stop all threads of the process. This
2167 should have no effect on already stopped threads. */
2169 target_stop (pid_to_ptid (inferior
->pid
));
2171 /* Tell the user/frontend where we're stopped. */
2173 if (deprecated_attach_hook
)
2174 deprecated_attach_hook ();
2178 struct attach_command_continuation_args
2186 attach_command_continuation (void *args
)
2188 struct attach_command_continuation_args
*a
= args
;
2189 attach_command_post_wait (a
->args
, a
->from_tty
, a
->async_exec
);
2193 attach_command_continuation_free_args (void *args
)
2195 struct attach_command_continuation_args
*a
= args
;
2201 attach_command (char *args
, int from_tty
)
2204 char *full_exec_path
= NULL
;
2206 struct cleanup
*back_to
= make_cleanup (null_cleanup
, NULL
);
2208 dont_repeat (); /* Not for the faint of heart */
2210 if (target_supports_multi_process ())
2211 /* Don't complain if we can be attached to multiple processes. */
2213 else if (target_has_execution
)
2215 if (query (_("A program is being debugged already. Kill it? ")))
2218 error (_("Not killed."));
2221 /* Clean up any leftovers from other runs. Some other things from
2222 this function should probably be moved into target_pre_inferior. */
2223 target_pre_inferior (from_tty
);
2225 if (non_stop
&& !target_supports_non_stop ())
2226 error (_("Cannot attach to this target in non-stop mode"));
2230 async_exec
= strip_bg_char (&args
);
2232 /* If we get a request for running in the bg but the target
2233 doesn't support it, error out. */
2234 if (async_exec
&& !target_can_async_p ())
2235 error (_("Asynchronous execution not supported on this target."));
2238 /* If we don't get a request of running in the bg, then we need
2239 to simulate synchronous (fg) execution. */
2240 if (!async_exec
&& target_can_async_p ())
2242 /* Simulate synchronous execution */
2243 async_disable_stdin ();
2244 make_cleanup ((make_cleanup_ftype
*)async_enable_stdin
, NULL
);
2247 target_attach (args
, from_tty
);
2249 /* Set up the "saved terminal modes" of the inferior
2250 based on what modes we are starting it with. */
2251 target_terminal_init ();
2253 /* Set up execution context to know that we should return from
2254 wait_for_inferior as soon as the target reports a stop. */
2255 init_wait_for_inferior ();
2256 clear_proceed_status ();
2260 /* If we find that the current thread isn't stopped, explicitly
2261 do so now, because we're going to install breakpoints and
2265 /* The user requested an `attach&'; stop just one thread. */
2266 target_stop (inferior_ptid
);
2268 /* The user requested an `attach', so stop all threads of this
2270 target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid
)));
2273 /* Some system don't generate traps when attaching to inferior.
2274 E.g. Mach 3 or GNU hurd. */
2275 if (!target_attach_no_wait
)
2277 struct inferior
*inferior
= current_inferior ();
2279 /* Careful here. See comments in inferior.h. Basically some
2280 OSes don't ignore SIGSTOPs on continue requests anymore. We
2281 need a way for handle_inferior_event to reset the stop_signal
2282 variable after an attach, and this is what
2283 STOP_QUIETLY_NO_SIGSTOP is for. */
2284 inferior
->stop_soon
= STOP_QUIETLY_NO_SIGSTOP
;
2286 if (target_can_async_p ())
2288 /* sync_execution mode. Wait for stop. */
2289 struct attach_command_continuation_args
*a
;
2291 a
= xmalloc (sizeof (*a
));
2292 a
->args
= xstrdup (args
);
2293 a
->from_tty
= from_tty
;
2294 a
->async_exec
= async_exec
;
2295 add_inferior_continuation (attach_command_continuation
, a
,
2296 attach_command_continuation_free_args
);
2297 discard_cleanups (back_to
);
2301 wait_for_inferior (0);
2304 attach_command_post_wait (args
, from_tty
, async_exec
);
2305 discard_cleanups (back_to
);
2308 /* We had just found out that the target was already attached to an
2309 inferior. PTID points at a thread of this new inferior, that is
2310 the most likely to be stopped right now, but not necessarily so.
2311 The new inferior is assumed to be already added to the inferior
2312 list at this point. If LEAVE_RUNNING, then leave the threads of
2313 this inferior running, except those we've explicitly seen reported
2317 notice_new_inferior (ptid_t ptid
, int leave_running
, int from_tty
)
2319 struct cleanup
* old_chain
;
2322 old_chain
= make_cleanup (null_cleanup
, NULL
);
2324 /* If in non-stop, leave threads as running as they were. If
2325 they're stopped for some reason other than us telling it to, the
2326 target reports a signal != TARGET_SIGNAL_0. We don't try to
2327 resume threads with such a stop signal. */
2328 async_exec
= non_stop
;
2330 if (!ptid_equal (inferior_ptid
, null_ptid
))
2331 make_cleanup_restore_current_thread ();
2333 switch_to_thread (ptid
);
2335 /* When we "notice" a new inferior we need to do all the things we
2336 would normally do if we had just attached to it. */
2338 if (is_executing (inferior_ptid
))
2340 struct inferior
*inferior
= current_inferior ();
2342 /* We're going to install breakpoints, and poke at memory,
2343 ensure that the inferior is stopped for a moment while we do
2345 target_stop (inferior_ptid
);
2347 inferior
->stop_soon
= STOP_QUIETLY_REMOTE
;
2349 /* Wait for stop before proceeding. */
2350 if (target_can_async_p ())
2352 struct attach_command_continuation_args
*a
;
2354 a
= xmalloc (sizeof (*a
));
2355 a
->args
= xstrdup ("");
2356 a
->from_tty
= from_tty
;
2357 a
->async_exec
= async_exec
;
2358 add_inferior_continuation (attach_command_continuation
, a
,
2359 attach_command_continuation_free_args
);
2361 do_cleanups (old_chain
);
2365 wait_for_inferior (0);
2368 async_exec
= leave_running
;
2369 attach_command_post_wait ("" /* args */, from_tty
, async_exec
);
2371 do_cleanups (old_chain
);
2376 * takes a program previously attached to and detaches it.
2377 * The program resumes execution and will no longer stop
2378 * on signals, etc. We better not have left any breakpoints
2379 * in the program or it'll die when it hits one. For this
2380 * to work, it may be necessary for the process to have been
2381 * previously attached. It *might* work if the program was
2382 * started via the normal ptrace (PTRACE_TRACEME).
2386 detach_command (char *args
, int from_tty
)
2388 dont_repeat (); /* Not for the faint of heart. */
2389 target_detach (args
, from_tty
);
2391 /* If the solist is global across inferiors, don't clear it when we
2392 detach from a single inferior. */
2393 if (!gdbarch_has_global_solist (target_gdbarch
))
2394 no_shared_libraries (NULL
, from_tty
);
2396 /* If the current target interface claims there's still execution,
2397 then don't mess with threads of other processes. */
2398 if (!target_has_execution
)
2399 init_thread_list ();
2401 if (deprecated_detach_hook
)
2402 deprecated_detach_hook ();
2405 /* Disconnect from the current target without resuming it (leaving it
2406 waiting for a debugger).
2408 We'd better not have left any breakpoints in the program or the
2409 next debugger will get confused. Currently only supported for some
2410 remote targets, since the normal attach mechanisms don't work on
2411 stopped processes on some native platforms (e.g. GNU/Linux). */
2414 disconnect_command (char *args
, int from_tty
)
2416 dont_repeat (); /* Not for the faint of heart */
2417 target_disconnect (args
, from_tty
);
2418 no_shared_libraries (NULL
, from_tty
);
2419 init_thread_list ();
2420 if (deprecated_detach_hook
)
2421 deprecated_detach_hook ();
2425 interrupt_target_1 (int all_threads
)
2429 ptid
= minus_one_ptid
;
2431 ptid
= inferior_ptid
;
2434 /* Tag the thread as having been explicitly requested to stop, so
2435 other parts of gdb know not to resume this thread automatically,
2436 if it was stopped due to an internal event. Limit this to
2437 non-stop mode, as when debugging a multi-threaded application in
2438 all-stop mode, we will only get one stop event --- it's undefined
2439 which thread will report the event. */
2441 set_stop_requested (ptid
, 1);
2444 /* Stop the execution of the target while running in async mode, in
2445 the backgound. In all-stop, stop the whole process. In non-stop
2446 mode, stop the current thread only by default, or stop all threads
2447 if the `-a' switch is used. */
2449 /* interrupt [-a] */
2451 interrupt_target_command (char *args
, int from_tty
)
2453 if (target_can_async_p ())
2455 int all_threads
= 0;
2457 dont_repeat (); /* Not for the faint of heart */
2460 && strncmp (args
, "-a", sizeof ("-a") - 1) == 0)
2463 if (!non_stop
&& all_threads
)
2464 error (_("-a is meaningless in all-stop mode."));
2466 interrupt_target_1 (all_threads
);
2471 print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
,
2472 struct frame_info
*frame
, const char *args
)
2474 if (gdbarch_print_float_info_p (gdbarch
))
2475 gdbarch_print_float_info (gdbarch
, file
, frame
, args
);
2479 int printed_something
= 0;
2482 regnum
< gdbarch_num_regs (gdbarch
)
2483 + gdbarch_num_pseudo_regs (gdbarch
);
2486 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, float_reggroup
))
2488 printed_something
= 1;
2489 gdbarch_print_registers_info (gdbarch
, file
, frame
, regnum
, 1);
2492 if (!printed_something
)
2493 fprintf_filtered (file
, "\
2494 No floating-point info available for this processor.\n");
2499 float_info (char *args
, int from_tty
)
2501 if (!target_has_registers
)
2502 error (_("The program has no registers now."));
2504 print_float_info (current_gdbarch
, gdb_stdout
,
2505 get_selected_frame (NULL
), args
);
2509 unset_command (char *args
, int from_tty
)
2511 printf_filtered (_("\
2512 \"unset\" must be followed by the name of an unset subcommand.\n"));
2513 help_list (unsetlist
, "unset ", -1, gdb_stdout
);
2517 _initialize_infcmd (void)
2519 struct cmd_list_element
*c
= NULL
;
2521 /* add the filename of the terminal connected to inferior I/O */
2522 add_setshow_filename_cmd ("inferior-tty", class_run
,
2523 &inferior_io_terminal
, _("\
2524 Set terminal for future runs of program being debugged."), _("\
2525 Show terminal for future runs of program being debugged."), _("\
2526 Usage: set inferior-tty /dev/pts/1"), NULL
, NULL
, &setlist
, &showlist
);
2527 add_com_alias ("tty", "set inferior-tty", class_alias
, 0);
2529 add_setshow_optional_filename_cmd ("args", class_run
,
2530 &inferior_args
, _("\
2531 Set argument list to give program being debugged when it is started."), _("\
2532 Show argument list to give program being debugged when it is started."), _("\
2533 Follow this command with any number of args, to be passed to the program."),
2536 &setlist
, &showlist
);
2538 c
= add_cmd ("environment", no_class
, environment_info
, _("\
2539 The environment to give the program, or one variable's value.\n\
2540 With an argument VAR, prints the value of environment variable VAR to\n\
2541 give the program being debugged. With no arguments, prints the entire\n\
2542 environment to be given to the program."), &showlist
);
2543 set_cmd_completer (c
, noop_completer
);
2545 add_prefix_cmd ("unset", no_class
, unset_command
,
2546 _("Complement to certain \"set\" commands."),
2547 &unsetlist
, "unset ", 0, &cmdlist
);
2549 c
= add_cmd ("environment", class_run
, unset_environment_command
, _("\
2550 Cancel environment variable VAR for the program.\n\
2551 This does not affect the program until the next \"run\" command."),
2553 set_cmd_completer (c
, noop_completer
);
2555 c
= add_cmd ("environment", class_run
, set_environment_command
, _("\
2556 Set environment variable value to give the program.\n\
2557 Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\
2558 VALUES of environment variables are uninterpreted strings.\n\
2559 This does not affect the program until the next \"run\" command."),
2561 set_cmd_completer (c
, noop_completer
);
2563 c
= add_com ("path", class_files
, path_command
, _("\
2564 Add directory DIR(s) to beginning of search path for object files.\n\
2565 $cwd in the path means the current working directory.\n\
2566 This path is equivalent to the $PATH shell variable. It is a list of\n\
2567 directories, separated by colons. These directories are searched to find\n\
2568 fully linked executable files and separately compiled object files as needed."));
2569 set_cmd_completer (c
, filename_completer
);
2571 c
= add_cmd ("paths", no_class
, path_info
, _("\
2572 Current search path for finding object files.\n\
2573 $cwd in the path means the current working directory.\n\
2574 This path is equivalent to the $PATH shell variable. It is a list of\n\
2575 directories, separated by colons. These directories are searched to find\n\
2576 fully linked executable files and separately compiled object files as needed."),
2578 set_cmd_completer (c
, noop_completer
);
2580 add_com ("attach", class_run
, attach_command
, _("\
2581 Attach to a process or file outside of GDB.\n\
2582 This command attaches to another target, of the same type as your last\n\
2583 \"target\" command (\"info files\" will show your target stack).\n\
2584 The command may take as argument a process id or a device file.\n\
2585 For a process id, you must have permission to send the process a signal,\n\
2586 and it must have the same effective uid as the debugger.\n\
2587 When using \"attach\" with a process id, the debugger finds the\n\
2588 program running in the process, looking first in the current working\n\
2589 directory, or (if not found there) using the source file search path\n\
2590 (see the \"directory\" command). You can also use the \"file\" command\n\
2591 to specify the program, and to load its symbol table."));
2593 add_prefix_cmd ("detach", class_run
, detach_command
, _("\
2594 Detach a process or file previously attached.\n\
2595 If a process, it is no longer traced, and it continues its execution. If\n\
2596 you were debugging a file, the file is closed and gdb no longer accesses it."),
2597 &detachlist
, "detach ", 0, &cmdlist
);
2599 add_com ("disconnect", class_run
, disconnect_command
, _("\
2600 Disconnect from a target.\n\
2601 The target will wait for another debugger to connect. Not available for\n\
2604 add_com ("signal", class_run
, signal_command
, _("\
2605 Continue program giving it signal specified by the argument.\n\
2606 An argument of \"0\" means continue program without giving it a signal."));
2608 add_com ("stepi", class_run
, stepi_command
, _("\
2609 Step one instruction exactly.\n\
2610 Argument N means do this N times (or till program stops for another reason)."));
2611 add_com_alias ("si", "stepi", class_alias
, 0);
2613 add_com ("nexti", class_run
, nexti_command
, _("\
2614 Step one instruction, but proceed through subroutine calls.\n\
2615 Argument N means do this N times (or till program stops for another reason)."));
2616 add_com_alias ("ni", "nexti", class_alias
, 0);
2618 add_com ("finish", class_run
, finish_command
, _("\
2619 Execute until selected stack frame returns.\n\
2620 Upon return, the value returned is printed and put in the value history."));
2621 add_com_alias ("fin", "finish", class_run
, 1);
2623 add_com ("next", class_run
, next_command
, _("\
2624 Step program, proceeding through subroutine calls.\n\
2625 Like the \"step\" command as long as subroutine calls do not happen;\n\
2626 when they do, the call is treated as one instruction.\n\
2627 Argument N means do this N times (or till program stops for another reason)."));
2628 add_com_alias ("n", "next", class_run
, 1);
2630 add_com_alias ("S", "next", class_run
, 1);
2632 add_com ("step", class_run
, step_command
, _("\
2633 Step program until it reaches a different source line.\n\
2634 Argument N means do this N times (or till program stops for another reason)."));
2635 add_com_alias ("s", "step", class_run
, 1);
2637 c
= add_com ("until", class_run
, until_command
, _("\
2638 Execute until the program reaches a source line greater than the current\n\
2639 or a specified location (same args as break command) within the current frame."));
2640 set_cmd_completer (c
, location_completer
);
2641 add_com_alias ("u", "until", class_run
, 1);
2643 c
= add_com ("advance", class_run
, advance_command
, _("\
2644 Continue the program up to the given location (same form as args for break command).\n\
2645 Execution will also stop upon exit from the current stack frame."));
2646 set_cmd_completer (c
, location_completer
);
2648 c
= add_com ("jump", class_run
, jump_command
, _("\
2649 Continue program being debugged at specified line or address.\n\
2650 Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\
2651 for an address to start at."));
2652 set_cmd_completer (c
, location_completer
);
2656 c
= add_com ("go", class_run
, go_command
, _("\
2657 Usage: go <location>\n\
2658 Continue program being debugged, stopping at specified line or \n\
2660 Give as argument either LINENUM or *ADDR, where ADDR is an \n\
2661 expression for an address to start at.\n\
2662 This command is a combination of tbreak and jump."));
2663 set_cmd_completer (c
, location_completer
);
2667 add_com_alias ("g", "go", class_run
, 1);
2669 c
= add_com ("continue", class_run
, continue_command
, _("\
2670 Continue program being debugged, after signal or breakpoint.\n\
2671 If proceeding from breakpoint, a number N may be used as an argument,\n\
2672 which means to set the ignore count of that breakpoint to N - 1 (so that\n\
2673 the breakpoint won't break until the Nth time it is reached).\n\
2675 If non-stop mode is enabled, continue only the current thread,\n\
2676 otherwise all the threads in the program are continued. To \n\
2677 continue all stopped threads in non-stop mode, use the -a option.\n\
2678 Specifying -a and an ignore count simultaneously is an error."));
2679 add_com_alias ("c", "cont", class_run
, 1);
2680 add_com_alias ("fg", "cont", class_run
, 1);
2682 c
= add_com ("run", class_run
, run_command
, _("\
2683 Start debugged program. You may specify arguments to give it.\n\
2684 Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\
2685 Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\
2686 With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\
2687 To cancel previous arguments and run with no arguments,\n\
2688 use \"set args\" without arguments."));
2689 set_cmd_completer (c
, filename_completer
);
2690 add_com_alias ("r", "run", class_run
, 1);
2692 add_com ("R", class_run
, run_no_args_command
,
2693 _("Start debugged program with no arguments."));
2695 c
= add_com ("start", class_run
, start_command
, _("\
2696 Run the debugged program until the beginning of the main procedure.\n\
2697 You may specify arguments to give to your program, just as with the\n\
2698 \"run\" command."));
2699 set_cmd_completer (c
, filename_completer
);
2701 c
= add_com ("interrupt", class_run
, interrupt_target_command
,
2702 _("Interrupt the execution of the debugged program.\n\
2703 If non-stop mode is enabled, interrupt only the current thread,\n\
2704 otherwise all the threads in the program are stopped. To \n\
2705 interrupt all running threads in non-stop mode, use the -a option."));
2707 add_info ("registers", nofp_registers_info
, _("\
2708 List of integer registers and their contents, for selected stack frame.\n\
2709 Register name as argument means describe only that register."));
2710 add_info_alias ("r", "registers", 1);
2713 add_com ("lr", class_info
, nofp_registers_info
, _("\
2714 List of integer registers and their contents, for selected stack frame.\n\
2715 Register name as argument means describe only that register."));
2716 add_info ("all-registers", all_registers_info
, _("\
2717 List of all registers and their contents, for selected stack frame.\n\
2718 Register name as argument means describe only that register."));
2720 add_info ("program", program_info
,
2721 _("Execution status of the program."));
2723 add_info ("float", float_info
,
2724 _("Print the status of the floating point unit\n"));
2726 add_info ("vector", vector_info
,
2727 _("Print the status of the vector unit\n"));
2729 inferior_environ
= make_environ ();
2730 init_environ (inferior_environ
);