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 /* Accessor routines. */
173 set_inferior_io_terminal (const char *terminal_name
)
175 if (inferior_io_terminal
)
176 xfree (inferior_io_terminal
);
179 inferior_io_terminal
= NULL
;
181 inferior_io_terminal
= xstrdup (terminal_name
);
185 get_inferior_io_terminal (void)
187 return inferior_io_terminal
;
191 get_inferior_args (void)
193 if (inferior_argc
!= 0)
197 n
= gdbarch_construct_inferior_arguments (current_gdbarch
,
198 inferior_argc
, inferior_argv
);
199 old
= set_inferior_args (n
);
203 if (inferior_args
== NULL
)
204 inferior_args
= xstrdup ("");
206 return inferior_args
;
210 set_inferior_args (char *newargs
)
212 char *saved_args
= inferior_args
;
214 inferior_args
= newargs
;
222 set_inferior_args_vector (int argc
, char **argv
)
224 inferior_argc
= argc
;
225 inferior_argv
= argv
;
228 /* Notice when `set args' is run. */
230 notice_args_set (char *args
, int from_tty
, struct cmd_list_element
*c
)
236 /* Notice when `show args' is run. */
238 notice_args_read (struct ui_file
*file
, int from_tty
,
239 struct cmd_list_element
*c
, const char *value
)
241 /* Note that we ignore the passed-in value in favor of computing it
243 deprecated_show_value_hack (file
, from_tty
, c
, get_inferior_args ());
247 /* Compute command-line string given argument vector. This does the
248 same shell processing as fork_inferior. */
250 construct_inferior_arguments (struct gdbarch
*gdbarch
, int argc
, char **argv
)
254 if (STARTUP_WITH_SHELL
)
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";
264 /* We over-compute the size. It shouldn't matter. */
265 for (i
= 0; i
< argc
; ++i
)
266 length
+= 3 * strlen (argv
[i
]) + 1 + 2 * (argv
[i
][0] == '\0');
268 result
= (char *) xmalloc (length
);
271 for (i
= 0; i
< argc
; ++i
)
276 /* Need to handle empty arguments specially. */
277 if (argv
[i
][0] == '\0')
284 for (cp
= argv
[i
]; *cp
; ++cp
)
288 /* A newline cannot be quoted with a backslash (it
289 just disappears), only by putting it inside
297 if (strchr (special
, *cp
) != NULL
)
308 /* In this case we can't handle arguments that contain spaces,
309 tabs, or newlines -- see breakup_args(). */
313 for (i
= 0; i
< argc
; ++i
)
315 char *cp
= strchr (argv
[i
], ' ');
317 cp
= strchr (argv
[i
], '\t');
319 cp
= strchr (argv
[i
], '\n');
321 error (_("can't handle command-line argument containing whitespace"));
322 length
+= strlen (argv
[i
]) + 1;
325 result
= (char *) xmalloc (length
);
327 for (i
= 0; i
< argc
; ++i
)
330 strcat (result
, " ");
331 strcat (result
, argv
[i
]);
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. */
344 strip_bg_char (char **args
)
348 p
= strchr (*args
, '&');
352 if (p
== (*args
+ strlen (*args
) - 1))
354 if (strlen (*args
) > 1)
358 while (*p
== ' ' || *p
== '\t');
370 tty_command (char *file
, int from_tty
)
373 error_no_arg (_("terminal name for running target process"));
375 set_inferior_io_terminal (file
);
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. */
383 post_create_inferior (struct target_ops
*target
, int from_tty
)
385 /* Be sure we own the terminal in case write operations are performed. */
386 target_terminal_ours ();
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
392 target_find_description ();
394 /* Now that we know the register layout, retrieve current PC. */
395 stop_pc
= regcache_read_pc (get_current_regcache ());
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 /* If the user sets watchpoints before execution having started,
425 then she gets software watchpoints, because GDB can't know which
426 target will end up being pushed, or if it supports hardware
427 watchpoints or not. breakpoint_re_set takes care of promoting
428 watchpoints to hardware watchpoints if possible, however, if this
429 new inferior doesn't load shared libraries or we don't pull in
430 symbols from any other source on this target/arch,
431 breakpoint_re_set is never called. Call it now so that software
432 watchpoints get a chance to be promoted to hardware watchpoints
433 if the now pushed target supports hardware watchpoints. */
434 breakpoint_re_set ();
436 observer_notify_inferior_created (target
, from_tty
);
439 /* Kill the inferior if already running. This function is designed
440 to be called when we are about to start the execution of the program
441 from the beginning. Ask the user to confirm that he wants to restart
442 the program being debugged when FROM_TTY is non-null. */
445 kill_if_already_running (int from_tty
)
447 if (! ptid_equal (inferior_ptid
, null_ptid
) && target_has_execution
)
449 /* Bail out before killing the program if we will not be able to
451 target_require_runnable ();
454 && !query (_("The program being debugged has been started already.\n\
455 Start it from the beginning? ")))
456 error (_("Program not restarted."));
461 /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert
462 a temporary breakpoint at the begining of the main program before
463 running the program. */
466 run_command_1 (char *args
, int from_tty
, int tbreak_at_main
)
469 struct cleanup
*old_chain
;
474 kill_if_already_running (from_tty
);
476 init_wait_for_inferior ();
477 clear_breakpoint_hit_counts ();
479 /* Clean up any leftovers from other runs. Some other things from
480 this function should probably be moved into target_pre_inferior. */
481 target_pre_inferior (from_tty
);
483 /* The comment here used to read, "The exec file is re-read every
484 time we do a generic_mourn_inferior, so we just have to worry
485 about the symbol file." The `generic_mourn_inferior' function
486 gets called whenever the program exits. However, suppose the
487 program exits, and *then* the executable file changes? We need
488 to check again here. Since reopen_exec_file doesn't do anything
489 if the timestamp hasn't changed, I don't see the harm. */
493 /* Insert the temporary breakpoint if a location was specified. */
495 tbreak_command (main_name (), 0);
497 exec_file
= (char *) get_exec_file (0);
499 if (non_stop
&& !target_supports_non_stop ())
500 error (_("The target does not support running in non-stop mode."));
502 /* We keep symbols from add-symbol-file, on the grounds that the
503 user might want to add some symbols before running the program
504 (right?). But sometimes (dynamic loading where the user manually
505 introduces the new symbols with add-symbol-file), the code which
506 the symbols describe does not persist between runs. Currently
507 the user has to manually nuke all symbols between runs if they
508 want them to go away (PR 2207). This is probably reasonable. */
512 if (target_can_async_p ())
513 async_disable_stdin ();
517 int async_exec
= strip_bg_char (&args
);
519 /* If we get a request for running in the bg but the target
520 doesn't support it, error out. */
521 if (async_exec
&& !target_can_async_p ())
522 error (_("Asynchronous execution not supported on this target."));
524 /* If we don't get a request of running in the bg, then we need
525 to simulate synchronous (fg) execution. */
526 if (!async_exec
&& target_can_async_p ())
528 /* Simulate synchronous execution */
529 async_disable_stdin ();
532 /* If there were other args, beside '&', process them. */
535 char *old_args
= set_inferior_args (xstrdup (args
));
542 ui_out_field_string (uiout
, NULL
, "Starting program");
543 ui_out_text (uiout
, ": ");
545 ui_out_field_string (uiout
, "execfile", exec_file
);
546 ui_out_spaces (uiout
, 1);
547 /* We call get_inferior_args() because we might need to compute
549 ui_out_field_string (uiout
, "infargs", get_inferior_args ());
550 ui_out_text (uiout
, "\n");
551 ui_out_flush (uiout
);
554 /* We call get_inferior_args() because we might need to compute
556 target_create_inferior (exec_file
, get_inferior_args (),
557 environ_vector (inferior_environ
), from_tty
);
559 /* We're starting off a new process. When we get out of here, in
560 non-stop mode, finish the state of all threads of that process,
561 but leave other threads alone, as they may be stopped in internal
562 events --- the frontend shouldn't see them as stopped. In
563 all-stop, always finish the state of all threads, as we may be
564 resuming more than just the new process. */
566 ptid
= pid_to_ptid (ptid_get_pid (inferior_ptid
));
568 ptid
= minus_one_ptid
;
569 old_chain
= make_cleanup (finish_thread_state_cleanup
, &ptid
);
571 /* Pass zero for FROM_TTY, because at this point the "run" command
572 has done its thing; now we are setting up the running program. */
573 post_create_inferior (¤t_target
, 0);
575 /* Start the target running. */
576 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_0
, 0);
578 /* Since there was no error, there's no need to finish the thread
580 discard_cleanups (old_chain
);
584 run_command (char *args
, int from_tty
)
586 run_command_1 (args
, from_tty
, 0);
590 run_no_args_command (char *args
, int from_tty
)
592 char *old_args
= set_inferior_args (xstrdup (""));
597 /* Start the execution of the program up until the beginning of the main
601 start_command (char *args
, int from_tty
)
603 /* Some languages such as Ada need to search inside the program
604 minimal symbols for the location where to put the temporary
605 breakpoint before starting. */
606 if (!have_minimal_symbols ())
607 error (_("No symbol table loaded. Use the \"file\" command."));
609 /* Run the program until reaching the main procedure... */
610 run_command_1 (args
, from_tty
, 1);
614 proceed_thread_callback (struct thread_info
*thread
, void *arg
)
616 /* We go through all threads individually instead of compressing
617 into a single target `resume_all' request, because some threads
618 may be stopped in internal breakpoints/events, or stopped waiting
619 for its turn in the displaced stepping queue (that is, they are
620 running && !executing). The target side has no idea about why
621 the thread is stopped, so a `resume_all' command would resume too
622 much. If/when GDB gains a way to tell the target `hold this
623 thread stopped until I say otherwise', then we can optimize
625 if (!is_stopped (thread
->ptid
))
628 switch_to_thread (thread
->ptid
);
629 clear_proceed_status ();
630 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
635 ensure_valid_thread (void)
637 if (ptid_equal (inferior_ptid
, null_ptid
)
638 || is_exited (inferior_ptid
))
640 Cannot execute this command without a live selected thread."));
644 continue_1 (int all_threads
)
648 if (non_stop
&& all_threads
)
650 /* Don't error out if the current thread is running, because
651 there may be other stopped threads. */
652 struct cleanup
*old_chain
;
654 /* Backup current thread and selected frame. */
655 old_chain
= make_cleanup_restore_current_thread ();
657 iterate_over_threads (proceed_thread_callback
, NULL
);
659 /* Restore selected ptid. */
660 do_cleanups (old_chain
);
664 ensure_valid_thread ();
665 ensure_not_running ();
666 clear_proceed_status ();
667 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
671 /* continue [-a] [proceed-count] [&] */
673 continue_command (char *args
, int from_tty
)
679 /* Find out whether we must run in the background. */
681 async_exec
= strip_bg_char (&args
);
683 /* If we must run in the background, but the target can't do it,
685 if (async_exec
&& !target_can_async_p ())
686 error (_("Asynchronous execution not supported on this target."));
688 /* If we are not asked to run in the bg, then prepare to run in the
689 foreground, synchronously. */
690 if (!async_exec
&& target_can_async_p ())
692 /* Simulate synchronous execution */
693 async_disable_stdin ();
698 if (strncmp (args
, "-a", sizeof ("-a") - 1) == 0)
701 args
+= sizeof ("-a") - 1;
707 if (!non_stop
&& all_threads
)
708 error (_("`-a' is meaningless in all-stop mode."));
710 if (args
!= NULL
&& all_threads
)
712 Can't resume all threads and specify proceed count simultaneously."));
714 /* If we have an argument left, set proceed count of breakpoint we
721 struct thread_info
*tp
;
724 tp
= find_thread_ptid (inferior_ptid
);
728 struct target_waitstatus ws
;
730 get_last_target_status (&last_ptid
, &ws
);
731 tp
= find_thread_ptid (last_ptid
);
734 bs
= tp
->stop_bpstat
;
736 while ((stat
= bpstat_num (&bs
, &num
)) != 0)
739 set_ignore_count (num
,
740 parse_and_eval_long (args
) - 1,
742 /* set_ignore_count prints a message ending with a period.
743 So print two spaces before "Continuing.". */
745 printf_filtered (" ");
749 if (!stopped
&& from_tty
)
752 ("Not stopped at any breakpoint; argument ignored.\n");
757 printf_filtered (_("Continuing.\n"));
759 continue_1 (all_threads
);
762 /* Step until outside of current statement. */
765 step_command (char *count_string
, int from_tty
)
767 step_1 (0, 0, count_string
);
770 /* Likewise, but skip over subroutine calls as if single instructions. */
773 next_command (char *count_string
, int from_tty
)
775 step_1 (1, 0, count_string
);
778 /* Likewise, but step only one instruction. */
781 stepi_command (char *count_string
, int from_tty
)
783 step_1 (0, 1, count_string
);
787 nexti_command (char *count_string
, int from_tty
)
789 step_1 (1, 1, count_string
);
793 delete_longjmp_breakpoint_cleanup (void *arg
)
795 int thread
= * (int *) arg
;
796 delete_longjmp_breakpoint (thread
);
800 step_1 (int skip_subroutines
, int single_inst
, char *count_string
)
803 struct frame_info
*frame
;
804 struct cleanup
*cleanups
= make_cleanup (null_cleanup
, NULL
);
809 ensure_valid_thread ();
810 ensure_not_running ();
813 async_exec
= strip_bg_char (&count_string
);
815 /* If we get a request for running in the bg but the target
816 doesn't support it, error out. */
817 if (async_exec
&& !target_can_async_p ())
818 error (_("Asynchronous execution not supported on this target."));
820 /* If we don't get a request of running in the bg, then we need
821 to simulate synchronous (fg) execution. */
822 if (!async_exec
&& target_can_async_p ())
824 /* Simulate synchronous execution */
825 async_disable_stdin ();
828 count
= count_string
? parse_and_eval_long (count_string
) : 1;
830 if (!single_inst
|| skip_subroutines
) /* leave si command alone */
832 if (in_thread_list (inferior_ptid
))
833 thread
= pid_to_thread_id (inferior_ptid
);
835 set_longjmp_breakpoint ();
837 make_cleanup (delete_longjmp_breakpoint_cleanup
, &thread
);
840 /* In synchronous case, all is well; each step_once call will step once. */
841 if (!target_can_async_p ())
843 for (; count
> 0; count
--)
845 struct thread_info
*tp
;
846 step_once (skip_subroutines
, single_inst
, count
, thread
);
848 if (target_has_execution
849 && !ptid_equal (inferior_ptid
, null_ptid
))
850 tp
= inferior_thread ();
854 if (!tp
|| !tp
->stop_step
|| !tp
->step_multi
)
856 /* If we stopped for some reason that is not stepping
857 there are no further steps to make. */
864 do_cleanups (cleanups
);
868 /* In the case of an asynchronous target things get complicated;
869 do only one step for now, before returning control to the
870 event loop. Let the continuation figure out how many other
871 steps we need to do, and handle them one at the time, through
873 step_once (skip_subroutines
, single_inst
, count
, thread
);
875 /* We are running, and the continuation is installed. It will
876 disable the longjmp breakpoint as appropriate. */
877 discard_cleanups (cleanups
);
881 struct step_1_continuation_args
884 int skip_subroutines
;
889 /* Called after we are done with one step operation, to check whether
890 we need to step again, before we print the prompt and return control
891 to the user. If count is > 1, we will need to do one more call to
892 proceed(), via step_once(). Basically it is like step_once and
893 step_1_continuation are co-recursive. */
895 step_1_continuation (void *args
)
897 struct step_1_continuation_args
*a
= args
;
899 if (target_has_execution
)
901 struct thread_info
*tp
;
903 tp
= inferior_thread ();
904 if (tp
->step_multi
&& tp
->stop_step
)
906 /* There are more steps to make, and we did stop due to
907 ending a stepping range. Do another step. */
908 step_once (a
->skip_subroutines
, a
->single_inst
,
909 a
->count
- 1, a
->thread
);
915 /* We either stopped for some reason that is not stepping, or there
916 are no further steps to make. Cleanup. */
917 if (!a
->single_inst
|| a
->skip_subroutines
)
918 delete_longjmp_breakpoint (a
->thread
);
921 /* Do just one step operation. This is useful to implement the 'step
922 n' kind of commands. In case of asynchronous targets, we will have
923 to set up a continuation to be done after the target stops (after
924 this one step). For synch targets, the caller handles further
928 step_once (int skip_subroutines
, int single_inst
, int count
, int thread
)
930 struct frame_info
*frame
;
934 /* Don't assume THREAD is a valid thread id. It is set to -1 if
935 the longjmp breakpoint was not required. Use the
936 INFERIOR_PTID thread instead, which is the same thread when
938 struct thread_info
*tp
= inferior_thread ();
939 clear_proceed_status ();
941 frame
= get_current_frame ();
942 tp
->step_frame_id
= get_frame_id (frame
);
948 pc
= get_frame_pc (frame
);
949 find_pc_line_pc_range (pc
,
950 &tp
->step_range_start
, &tp
->step_range_end
);
952 /* If we have no line info, switch to stepi mode. */
953 if (tp
->step_range_end
== 0 && step_stop_if_no_debug
)
955 tp
->step_range_start
= tp
->step_range_end
= 1;
957 else if (tp
->step_range_end
== 0)
960 if (find_pc_partial_function (pc
, &name
,
961 &tp
->step_range_start
,
962 &tp
->step_range_end
) == 0)
963 error (_("Cannot find bounds of current function"));
965 target_terminal_ours ();
966 printf_filtered (_("\
967 Single stepping until exit from function %s, \n\
968 which has no line number information.\n"), name
);
973 /* Say we are stepping, but stop after one insn whatever it does. */
974 tp
->step_range_start
= tp
->step_range_end
= 1;
975 if (!skip_subroutines
)
977 Don't step over function calls, not even to functions lacking
979 tp
->step_over_calls
= STEP_OVER_NONE
;
982 if (skip_subroutines
)
983 tp
->step_over_calls
= STEP_OVER_ALL
;
985 tp
->step_multi
= (count
> 1);
986 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
988 /* For async targets, register a continuation to do any
989 additional steps. For sync targets, the caller will handle
991 if (target_can_async_p ())
993 struct step_1_continuation_args
*args
;
995 args
= xmalloc (sizeof (*args
));
996 args
->skip_subroutines
= skip_subroutines
;
997 args
->single_inst
= single_inst
;
999 args
->thread
= thread
;
1001 add_intermediate_continuation (tp
, step_1_continuation
, args
, xfree
);
1007 /* Continue program at specified address. */
1010 jump_command (char *arg
, int from_tty
)
1013 struct symtabs_and_lines sals
;
1014 struct symtab_and_line sal
;
1020 ensure_valid_thread ();
1021 ensure_not_running ();
1023 /* Find out whether we must run in the background. */
1025 async_exec
= strip_bg_char (&arg
);
1027 /* If we must run in the background, but the target can't do it,
1029 if (async_exec
&& !target_can_async_p ())
1030 error (_("Asynchronous execution not supported on this target."));
1033 error_no_arg (_("starting address"));
1035 sals
= decode_line_spec_1 (arg
, 1);
1036 if (sals
.nelts
!= 1)
1038 error (_("Unreasonable jump request"));
1044 if (sal
.symtab
== 0 && sal
.pc
== 0)
1045 error (_("No source file has been specified."));
1047 resolve_sal_pc (&sal
); /* May error out */
1049 /* See if we are trying to jump to another function. */
1050 fn
= get_frame_function (get_current_frame ());
1051 sfn
= find_pc_function (sal
.pc
);
1052 if (fn
!= NULL
&& sfn
!= fn
)
1054 if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal
.line
,
1055 SYMBOL_PRINT_NAME (fn
)))
1057 error (_("Not confirmed."));
1064 fixup_symbol_section (sfn
, 0);
1065 if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn
)) &&
1066 !section_is_mapped (SYMBOL_OBJ_SECTION (sfn
)))
1068 if (!query (_("WARNING!!! Destination is in unmapped overlay! Jump anyway? ")))
1070 error (_("Not confirmed."));
1080 printf_filtered (_("Continuing at "));
1081 fputs_filtered (paddress (addr
), gdb_stdout
);
1082 printf_filtered (".\n");
1085 /* If we are not asked to run in the bg, then prepare to run in the
1086 foreground, synchronously. */
1087 if (!async_exec
&& target_can_async_p ())
1089 /* Simulate synchronous execution */
1090 async_disable_stdin ();
1093 clear_proceed_status ();
1094 proceed (addr
, TARGET_SIGNAL_0
, 0);
1098 /* Go to line or address in current procedure */
1100 go_command (char *line_no
, int from_tty
)
1102 if (line_no
== (char *) NULL
|| !*line_no
)
1103 printf_filtered (_("Usage: go <location>\n"));
1106 tbreak_command (line_no
, from_tty
);
1107 jump_command (line_no
, from_tty
);
1112 /* Continue program giving it specified signal. */
1115 signal_command (char *signum_exp
, int from_tty
)
1117 enum target_signal oursig
;
1120 dont_repeat (); /* Too dangerous. */
1122 ensure_valid_thread ();
1123 ensure_not_running ();
1125 /* Find out whether we must run in the background. */
1126 if (signum_exp
!= NULL
)
1127 async_exec
= strip_bg_char (&signum_exp
);
1129 /* If we must run in the background, but the target can't do it,
1131 if (async_exec
&& !target_can_async_p ())
1132 error (_("Asynchronous execution not supported on this target."));
1134 /* If we are not asked to run in the bg, then prepare to run in the
1135 foreground, synchronously. */
1136 if (!async_exec
&& target_can_async_p ())
1138 /* Simulate synchronous execution. */
1139 async_disable_stdin ();
1143 error_no_arg (_("signal number"));
1145 /* It would be even slicker to make signal names be valid expressions,
1146 (the type could be "enum $signal" or some such), then the user could
1147 assign them to convenience variables. */
1148 oursig
= target_signal_from_name (signum_exp
);
1150 if (oursig
== TARGET_SIGNAL_UNKNOWN
)
1152 /* No, try numeric. */
1153 int num
= parse_and_eval_long (signum_exp
);
1156 oursig
= TARGET_SIGNAL_0
;
1158 oursig
= target_signal_from_command (num
);
1163 if (oursig
== TARGET_SIGNAL_0
)
1164 printf_filtered (_("Continuing with no signal.\n"));
1166 printf_filtered (_("Continuing with signal %s.\n"),
1167 target_signal_to_name (oursig
));
1170 clear_proceed_status ();
1171 proceed ((CORE_ADDR
) -1, oursig
, 0);
1174 /* Proceed until we reach a different source line with pc greater than
1175 our current one or exit the function. We skip calls in both cases.
1177 Note that eventually this command should probably be changed so
1178 that only source lines are printed out when we hit the breakpoint
1179 we set. This may involve changes to wait_for_inferior and the
1180 proceed status code. */
1183 until_next_command (int from_tty
)
1185 struct frame_info
*frame
;
1187 struct symbol
*func
;
1188 struct symtab_and_line sal
;
1189 struct thread_info
*tp
= inferior_thread ();
1191 clear_proceed_status ();
1193 frame
= get_current_frame ();
1195 /* Step until either exited from this function or greater
1196 than the current line (if in symbolic section) or pc (if
1199 pc
= get_frame_pc (frame
);
1200 func
= find_pc_function (pc
);
1204 struct minimal_symbol
*msymbol
= lookup_minimal_symbol_by_pc (pc
);
1206 if (msymbol
== NULL
)
1207 error (_("Execution is not within a known function."));
1209 tp
->step_range_start
= SYMBOL_VALUE_ADDRESS (msymbol
);
1210 tp
->step_range_end
= pc
;
1214 sal
= find_pc_line (pc
, 0);
1216 tp
->step_range_start
= BLOCK_START (SYMBOL_BLOCK_VALUE (func
));
1217 tp
->step_range_end
= sal
.end
;
1220 tp
->step_over_calls
= STEP_OVER_ALL
;
1221 tp
->step_frame_id
= get_frame_id (frame
);
1223 tp
->step_multi
= 0; /* Only one call to proceed */
1225 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
1229 until_command (char *arg
, int from_tty
)
1233 if (!target_has_execution
)
1234 error (_("The program is not running."));
1236 /* Find out whether we must run in the background. */
1238 async_exec
= strip_bg_char (&arg
);
1240 /* If we must run in the background, but the target can't do it,
1242 if (async_exec
&& !target_can_async_p ())
1243 error (_("Asynchronous execution not supported on this target."));
1245 /* If we are not asked to run in the bg, then prepare to run in the
1246 foreground, synchronously. */
1247 if (!async_exec
&& target_can_async_p ())
1249 /* Simulate synchronous execution */
1250 async_disable_stdin ();
1254 until_break_command (arg
, from_tty
, 0);
1256 until_next_command (from_tty
);
1260 advance_command (char *arg
, int from_tty
)
1264 if (!target_has_execution
)
1265 error (_("The program is not running."));
1268 error_no_arg (_("a location"));
1270 /* Find out whether we must run in the background. */
1272 async_exec
= strip_bg_char (&arg
);
1274 /* If we must run in the background, but the target can't do it,
1276 if (async_exec
&& !target_can_async_p ())
1277 error (_("Asynchronous execution not supported on this target."));
1279 /* If we are not asked to run in the bg, then prepare to run in the
1280 foreground, synchronously. */
1281 if (!async_exec
&& target_can_async_p ())
1283 /* Simulate synchronous execution. */
1284 async_disable_stdin ();
1287 until_break_command (arg
, from_tty
, 1);
1290 /* Print the result of a function at the end of a 'finish' command. */
1293 print_return_value (struct type
*func_type
, struct type
*value_type
)
1295 struct gdbarch
*gdbarch
= current_gdbarch
;
1296 struct cleanup
*old_chain
;
1297 struct ui_stream
*stb
;
1298 struct value
*value
;
1300 CHECK_TYPEDEF (value_type
);
1301 gdb_assert (TYPE_CODE (value_type
) != TYPE_CODE_VOID
);
1303 /* FIXME: 2003-09-27: When returning from a nested inferior function
1304 call, it's possible (with no help from the architecture vector)
1305 to locate and return/print a "struct return" value. This is just
1306 a more complicated case of what is already being done in in the
1307 inferior function call code. In fact, when inferior function
1308 calls are made async, this will likely be made the norm. */
1310 switch (gdbarch_return_value (gdbarch
, func_type
, value_type
,
1313 case RETURN_VALUE_REGISTER_CONVENTION
:
1314 case RETURN_VALUE_ABI_RETURNS_ADDRESS
:
1315 case RETURN_VALUE_ABI_PRESERVES_ADDRESS
:
1316 value
= allocate_value (value_type
);
1317 gdbarch_return_value (gdbarch
, func_type
, value_type
, stop_registers
,
1318 value_contents_raw (value
), NULL
);
1320 case RETURN_VALUE_STRUCT_CONVENTION
:
1324 internal_error (__FILE__
, __LINE__
, _("bad switch"));
1329 struct value_print_options opts
;
1332 stb
= ui_out_stream_new (uiout
);
1333 old_chain
= make_cleanup_ui_out_stream_delete (stb
);
1334 ui_out_text (uiout
, "Value returned is ");
1335 ui_out_field_fmt (uiout
, "gdb-result-var", "$%d",
1336 record_latest_value (value
));
1337 ui_out_text (uiout
, " = ");
1338 get_raw_print_options (&opts
);
1339 value_print (value
, stb
->stream
, &opts
);
1340 ui_out_field_stream (uiout
, "return-value", stb
);
1341 ui_out_text (uiout
, "\n");
1342 do_cleanups (old_chain
);
1346 ui_out_text (uiout
, "Value returned has type: ");
1347 ui_out_field_string (uiout
, "return-type", TYPE_NAME (value_type
));
1348 ui_out_text (uiout
, ".");
1349 ui_out_text (uiout
, " Cannot determine contents\n");
1353 /* Stuff that needs to be done by the finish command after the target
1354 has stopped. In asynchronous mode, we wait for the target to stop
1355 in the call to poll or select in the event loop, so it is
1356 impossible to do all the stuff as part of the finish_command
1357 function itself. The only chance we have to complete this command
1358 is in fetch_inferior_event, which is called by the event loop as
1359 soon as it detects that the target has stopped. This function is
1360 called via the cmd_continuation pointer. */
1362 struct finish_command_continuation_args
1364 struct breakpoint
*breakpoint
;
1365 struct symbol
*function
;
1369 finish_command_continuation (void *arg
)
1371 struct finish_command_continuation_args
*a
= arg
;
1372 struct thread_info
*tp
= NULL
;
1375 if (!ptid_equal (inferior_ptid
, null_ptid
)
1376 && target_has_execution
1377 && is_stopped (inferior_ptid
))
1379 tp
= inferior_thread ();
1380 bs
= tp
->stop_bpstat
;
1383 if (bpstat_find_breakpoint (bs
, a
->breakpoint
) != NULL
1384 && a
->function
!= NULL
)
1386 struct type
*value_type
;
1388 value_type
= TYPE_TARGET_TYPE (SYMBOL_TYPE (a
->function
));
1390 internal_error (__FILE__
, __LINE__
,
1391 _("finish_command: function has no target type"));
1393 if (TYPE_CODE (value_type
) != TYPE_CODE_VOID
)
1394 print_return_value (SYMBOL_TYPE (a
->function
), value_type
);
1397 /* We suppress normal call of normal_stop observer and do it here so
1398 that the *stopped notification includes the return value. */
1399 if (bs
!= NULL
&& tp
->proceed_to_finish
)
1400 observer_notify_normal_stop (bs
, 1 /* print frame */);
1401 delete_breakpoint (a
->breakpoint
);
1405 finish_command_continuation_free_arg (void *arg
)
1410 /* finish_backward -- helper function for finish_command. */
1413 finish_backward (struct symbol
*function
)
1415 struct symtab_and_line sal
;
1416 struct thread_info
*tp
= inferior_thread ();
1417 struct breakpoint
*breakpoint
;
1418 struct cleanup
*old_chain
;
1420 CORE_ADDR func_addr
;
1423 pc
= get_frame_pc (get_current_frame ());
1425 if (find_pc_partial_function (pc
, NULL
, &func_addr
, NULL
) == 0)
1426 internal_error (__FILE__
, __LINE__
,
1427 _("Finish: couldn't find function."));
1429 sal
= find_pc_line (func_addr
, 0);
1431 /* We don't need a return value. */
1432 tp
->proceed_to_finish
= 0;
1433 /* Special case: if we're sitting at the function entry point,
1434 then all we need to do is take a reverse singlestep. We
1435 don't need to set a breakpoint, and indeed it would do us
1438 Note that this can only happen at frame #0, since there's
1439 no way that a function up the stack can have a return address
1440 that's equal to its entry point. */
1444 /* Set breakpoint and continue. */
1446 set_momentary_breakpoint (sal
,
1447 get_frame_id (get_selected_frame (NULL
)),
1449 /* Tell the breakpoint to keep quiet. We won't be done
1450 until we've done another reverse single-step. */
1451 make_breakpoint_silent (breakpoint
);
1452 old_chain
= make_cleanup_delete_breakpoint (breakpoint
);
1453 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
1454 /* We will be stopped when proceed returns. */
1455 back_up
= bpstat_find_breakpoint (tp
->stop_bpstat
, breakpoint
) != NULL
;
1456 do_cleanups (old_chain
);
1462 /* If in fact we hit the step-resume breakpoint (and not
1463 some other breakpoint), then we're almost there --
1464 we just need to back up by one more single-step. */
1465 tp
->step_range_start
= tp
->step_range_end
= 1;
1466 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
1471 /* finish_forward -- helper function for finish_command. */
1474 finish_forward (struct symbol
*function
, struct frame_info
*frame
)
1476 struct symtab_and_line sal
;
1477 struct thread_info
*tp
= inferior_thread ();
1478 struct breakpoint
*breakpoint
;
1479 struct cleanup
*old_chain
;
1480 struct finish_command_continuation_args
*cargs
;
1482 sal
= find_pc_line (get_frame_pc (frame
), 0);
1483 sal
.pc
= get_frame_pc (frame
);
1485 breakpoint
= set_momentary_breakpoint (sal
, get_frame_id (frame
),
1488 old_chain
= make_cleanup_delete_breakpoint (breakpoint
);
1490 tp
->proceed_to_finish
= 1; /* We want stop_registers, please... */
1491 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
1493 cargs
= xmalloc (sizeof (*cargs
));
1495 cargs
->breakpoint
= breakpoint
;
1496 cargs
->function
= function
;
1497 add_continuation (tp
, finish_command_continuation
, cargs
,
1498 finish_command_continuation_free_arg
);
1500 discard_cleanups (old_chain
);
1501 if (!target_can_async_p ())
1502 do_all_continuations ();
1505 /* "finish": Set a temporary breakpoint at the place the selected
1506 frame will return to, then continue. */
1509 finish_command (char *arg
, int from_tty
)
1511 struct frame_info
*frame
;
1512 struct symbol
*function
;
1516 /* Find out whether we must run in the background. */
1518 async_exec
= strip_bg_char (&arg
);
1520 /* If we must run in the background, but the target can't do it,
1522 if (async_exec
&& !target_can_async_p ())
1523 error (_("Asynchronous execution not supported on this target."));
1525 /* Don't try to async in reverse. */
1526 if (async_exec
&& execution_direction
== EXEC_REVERSE
)
1527 error (_("Asynchronous 'finish' not supported in reverse."));
1529 /* If we are not asked to run in the bg, then prepare to run in the
1530 foreground, synchronously. */
1531 if (!async_exec
&& target_can_async_p ())
1533 /* Simulate synchronous execution. */
1534 async_disable_stdin ();
1538 error (_("The \"finish\" command does not take any arguments."));
1539 if (!target_has_execution
)
1540 error (_("The program is not running."));
1542 frame
= get_prev_frame (get_selected_frame (_("No selected frame.")));
1544 error (_("\"finish\" not meaningful in the outermost frame."));
1546 clear_proceed_status ();
1548 /* Find the function we will return from. */
1550 function
= find_pc_function (get_frame_pc (get_selected_frame (NULL
)));
1552 /* Print info on the selected frame, including level number but not
1556 if (execution_direction
== EXEC_REVERSE
)
1557 printf_filtered (_("Run back to call of "));
1559 printf_filtered (_("Run till exit from "));
1561 print_stack_frame (get_selected_frame (NULL
), 1, LOCATION
);
1564 if (execution_direction
== EXEC_REVERSE
)
1565 finish_backward (function
);
1567 finish_forward (function
, frame
);
1572 program_info (char *args
, int from_tty
)
1576 struct thread_info
*tp
;
1579 if (!target_has_execution
)
1581 printf_filtered (_("The program being debugged is not being run.\n"));
1586 ptid
= inferior_ptid
;
1589 struct target_waitstatus ws
;
1590 get_last_target_status (&ptid
, &ws
);
1593 if (ptid_equal (ptid
, null_ptid
) || is_exited (ptid
))
1594 error (_("Invalid selected thread."));
1595 else if (is_running (ptid
))
1596 error (_("Selected thread is running."));
1598 tp
= find_thread_ptid (ptid
);
1599 bs
= tp
->stop_bpstat
;
1600 stat
= bpstat_num (&bs
, &num
);
1602 target_files_info ();
1603 printf_filtered (_("Program stopped at %s.\n"), paddress (stop_pc
));
1605 printf_filtered (_("It stopped after being stepped.\n"));
1608 /* There may be several breakpoints in the same place, so this
1609 isn't as strange as it seems. */
1614 printf_filtered (_("\
1615 It stopped at a breakpoint that has since been deleted.\n"));
1618 printf_filtered (_("It stopped at breakpoint %d.\n"), num
);
1619 stat
= bpstat_num (&bs
, &num
);
1622 else if (tp
->stop_signal
!= TARGET_SIGNAL_0
)
1624 printf_filtered (_("It stopped with signal %s, %s.\n"),
1625 target_signal_to_name (tp
->stop_signal
),
1626 target_signal_to_string (tp
->stop_signal
));
1631 printf_filtered (_("\
1632 Type \"info stack\" or \"info registers\" for more information.\n"));
1637 environment_info (char *var
, int from_tty
)
1641 char *val
= get_in_environ (inferior_environ
, var
);
1644 puts_filtered (var
);
1645 puts_filtered (" = ");
1646 puts_filtered (val
);
1647 puts_filtered ("\n");
1651 puts_filtered ("Environment variable \"");
1652 puts_filtered (var
);
1653 puts_filtered ("\" not defined.\n");
1658 char **vector
= environ_vector (inferior_environ
);
1661 puts_filtered (*vector
++);
1662 puts_filtered ("\n");
1668 set_environment_command (char *arg
, int from_tty
)
1670 char *p
, *val
, *var
;
1674 error_no_arg (_("environment variable and value"));
1676 /* Find seperation between variable name and value */
1677 p
= (char *) strchr (arg
, '=');
1678 val
= (char *) strchr (arg
, ' ');
1680 if (p
!= 0 && val
!= 0)
1682 /* We have both a space and an equals. If the space is before the
1683 equals, walk forward over the spaces til we see a nonspace
1684 (possibly the equals). */
1689 /* Now if the = is after the char following the spaces,
1690 take the char following the spaces. */
1694 else if (val
!= 0 && p
== 0)
1698 error_no_arg (_("environment variable to set"));
1700 if (p
== 0 || p
[1] == 0)
1704 p
= arg
+ strlen (arg
); /* So that savestring below will work */
1708 /* Not setting variable value to null */
1710 while (*val
== ' ' || *val
== '\t')
1714 while (p
!= arg
&& (p
[-1] == ' ' || p
[-1] == '\t'))
1717 var
= savestring (arg
, p
- arg
);
1720 printf_filtered (_("\
1721 Setting environment variable \"%s\" to null value.\n"),
1723 set_in_environ (inferior_environ
, var
, "");
1726 set_in_environ (inferior_environ
, var
, val
);
1731 unset_environment_command (char *var
, int from_tty
)
1735 /* If there is no argument, delete all environment variables.
1736 Ask for confirmation if reading from the terminal. */
1737 if (!from_tty
|| query (_("Delete all environment variables? ")))
1739 free_environ (inferior_environ
);
1740 inferior_environ
= make_environ ();
1744 unset_in_environ (inferior_environ
, var
);
1747 /* Handle the execution path (PATH variable) */
1749 static const char path_var_name
[] = "PATH";
1752 path_info (char *args
, int from_tty
)
1754 puts_filtered ("Executable and object file path: ");
1755 puts_filtered (get_in_environ (inferior_environ
, path_var_name
));
1756 puts_filtered ("\n");
1759 /* Add zero or more directories to the front of the execution path. */
1762 path_command (char *dirname
, int from_tty
)
1767 env
= get_in_environ (inferior_environ
, path_var_name
);
1768 /* Can be null if path is not set */
1771 exec_path
= xstrdup (env
);
1772 mod_path (dirname
, &exec_path
);
1773 set_in_environ (inferior_environ
, path_var_name
, exec_path
);
1776 path_info ((char *) NULL
, from_tty
);
1780 /* Print out the machine register regnum. If regnum is -1, print all
1781 registers (print_all == 1) or all non-float and non-vector
1782 registers (print_all == 0).
1784 For most machines, having all_registers_info() print the
1785 register(s) one per line is good enough. If a different format is
1786 required, (eg, for MIPS or Pyramid 90x, which both have lots of
1787 regs), or there is an existing convention for showing all the
1788 registers, define the architecture method PRINT_REGISTERS_INFO to
1789 provide that format. */
1792 default_print_registers_info (struct gdbarch
*gdbarch
,
1793 struct ui_file
*file
,
1794 struct frame_info
*frame
,
1795 int regnum
, int print_all
)
1798 const int numregs
= gdbarch_num_regs (gdbarch
)
1799 + gdbarch_num_pseudo_regs (gdbarch
);
1800 gdb_byte buffer
[MAX_REGISTER_SIZE
];
1802 for (i
= 0; i
< numregs
; i
++)
1804 /* Decide between printing all regs, non-float / vector regs, or
1810 if (!gdbarch_register_reggroup_p (gdbarch
, i
, all_reggroup
))
1815 if (!gdbarch_register_reggroup_p (gdbarch
, i
, general_reggroup
))
1825 /* If the register name is empty, it is undefined for this
1826 processor, so don't display anything. */
1827 if (gdbarch_register_name (gdbarch
, i
) == NULL
1828 || *(gdbarch_register_name (gdbarch
, i
)) == '\0')
1831 fputs_filtered (gdbarch_register_name (gdbarch
, i
), file
);
1832 print_spaces_filtered (15 - strlen (gdbarch_register_name
1833 (gdbarch
, i
)), file
);
1835 /* Get the data in raw format. */
1836 if (! frame_register_read (frame
, i
, buffer
))
1838 fprintf_filtered (file
, "*value not available*\n");
1842 /* If virtual format is floating, print it that way, and in raw
1844 if (TYPE_CODE (register_type (gdbarch
, i
)) == TYPE_CODE_FLT
1845 || TYPE_CODE (register_type (gdbarch
, i
)) == TYPE_CODE_DECFLOAT
)
1848 struct value_print_options opts
;
1850 get_user_print_options (&opts
);
1852 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1853 file
, 0, &opts
, current_language
);
1855 fprintf_filtered (file
, "\t(raw 0x");
1856 for (j
= 0; j
< register_size (gdbarch
, i
); j
++)
1859 if (gdbarch_byte_order (gdbarch
) == BFD_ENDIAN_BIG
)
1862 idx
= register_size (gdbarch
, i
) - 1 - j
;
1863 fprintf_filtered (file
, "%02x", (unsigned char) buffer
[idx
]);
1865 fprintf_filtered (file
, ")");
1869 struct value_print_options opts
;
1871 /* Print the register in hex. */
1872 get_formatted_print_options (&opts
, 'x');
1874 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1877 /* If not a vector register, print it also according to its
1879 if (TYPE_VECTOR (register_type (gdbarch
, i
)) == 0)
1881 get_user_print_options (&opts
);
1883 fprintf_filtered (file
, "\t");
1884 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1885 file
, 0, &opts
, current_language
);
1889 fprintf_filtered (file
, "\n");
1894 registers_info (char *addr_exp
, int fpregs
)
1896 struct frame_info
*frame
;
1897 struct gdbarch
*gdbarch
;
1898 int regnum
, numregs
;
1901 if (!target_has_registers
)
1902 error (_("The program has no registers now."));
1903 frame
= get_selected_frame (NULL
);
1904 gdbarch
= get_frame_arch (frame
);
1908 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
1913 while (*addr_exp
!= '\0')
1918 /* Keep skipping leading white space. */
1919 if (isspace ((*addr_exp
)))
1925 /* Discard any leading ``$''. Check that there is something
1926 resembling a register following it. */
1927 if (addr_exp
[0] == '$')
1929 if (isspace ((*addr_exp
)) || (*addr_exp
) == '\0')
1930 error (_("Missing register name"));
1932 /* Find the start/end of this register name/num/group. */
1934 while ((*addr_exp
) != '\0' && !isspace ((*addr_exp
)))
1938 /* Figure out what we've found and display it. */
1940 /* A register name? */
1942 int regnum
= user_reg_map_name_to_regnum (gdbarch
, start
, end
- start
);
1945 /* User registers lie completely outside of the range of
1946 normal registers. Catch them early so that the target
1948 if (regnum
>= gdbarch_num_regs (gdbarch
)
1949 + gdbarch_num_pseudo_regs (gdbarch
))
1951 struct value_print_options opts
;
1952 struct value
*val
= value_of_user_reg (regnum
, frame
);
1954 printf_filtered ("%s: ", start
);
1955 get_formatted_print_options (&opts
, 'x');
1956 print_scalar_formatted (value_contents (val
),
1957 check_typedef (value_type (val
)),
1958 &opts
, 0, gdb_stdout
);
1959 printf_filtered ("\n");
1962 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
1963 frame
, regnum
, fpregs
);
1968 /* A register group? */
1970 struct reggroup
*group
;
1971 for (group
= reggroup_next (gdbarch
, NULL
);
1973 group
= reggroup_next (gdbarch
, group
))
1975 /* Don't bother with a length check. Should the user
1976 enter a short register group name, go with the first
1977 group that matches. */
1978 if (strncmp (start
, reggroup_name (group
), end
- start
) == 0)
1985 regnum
< gdbarch_num_regs (gdbarch
)
1986 + gdbarch_num_pseudo_regs (gdbarch
);
1989 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, group
))
1990 gdbarch_print_registers_info (gdbarch
,
1998 /* Nothing matched. */
1999 error (_("Invalid register `%.*s'"), (int) (end
- start
), start
);
2004 all_registers_info (char *addr_exp
, int from_tty
)
2006 registers_info (addr_exp
, 1);
2010 nofp_registers_info (char *addr_exp
, int from_tty
)
2012 registers_info (addr_exp
, 0);
2016 print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
,
2017 struct frame_info
*frame
, const char *args
)
2019 if (gdbarch_print_vector_info_p (gdbarch
))
2020 gdbarch_print_vector_info (gdbarch
, file
, frame
, args
);
2024 int printed_something
= 0;
2027 regnum
< gdbarch_num_regs (gdbarch
)
2028 + gdbarch_num_pseudo_regs (gdbarch
);
2031 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, vector_reggroup
))
2033 printed_something
= 1;
2034 gdbarch_print_registers_info (gdbarch
, file
, frame
, regnum
, 1);
2037 if (!printed_something
)
2038 fprintf_filtered (file
, "No vector information\n");
2043 vector_info (char *args
, int from_tty
)
2045 if (!target_has_registers
)
2046 error (_("The program has no registers now."));
2048 print_vector_info (current_gdbarch
, gdb_stdout
,
2049 get_selected_frame (NULL
), args
);
2052 /* Kill the inferior process. Make us have no inferior. */
2055 kill_command (char *arg
, int from_tty
)
2057 /* FIXME: This should not really be inferior_ptid (or target_has_execution).
2058 It should be a distinct flag that indicates that a target is active, cuz
2059 some targets don't have processes! */
2061 if (ptid_equal (inferior_ptid
, null_ptid
))
2062 error (_("The program is not being run."));
2063 if (!query (_("Kill the program being debugged? ")))
2064 error (_("Not confirmed."));
2067 /* If we still have other inferiors to debug, then don't mess with
2068 with their threads. */
2069 if (!have_inferiors ())
2071 init_thread_list (); /* Destroy thread info */
2073 /* Killing off the inferior can leave us with a core file. If
2074 so, print the state we are left in. */
2075 if (target_has_stack
)
2077 printf_filtered (_("In %s,\n"), target_longname
);
2078 print_stack_frame (get_selected_frame (NULL
), 1, SRC_AND_LOC
);
2081 bfd_cache_close_all ();
2084 /* Used in `attach&' command. ARG is a point to an integer
2085 representing a process id. Proceed threads of this process iff
2086 they stopped due to debugger request, and when they did, they
2087 reported a clean stop (TARGET_SIGNAL_0). Do not proceed threads
2088 that have been explicitly been told to stop. */
2091 proceed_after_attach_callback (struct thread_info
*thread
,
2094 int pid
= * (int *) arg
;
2096 if (ptid_get_pid (thread
->ptid
) == pid
2097 && !is_exited (thread
->ptid
)
2098 && !is_executing (thread
->ptid
)
2099 && !thread
->stop_requested
2100 && thread
->stop_signal
== TARGET_SIGNAL_0
)
2102 switch_to_thread (thread
->ptid
);
2103 clear_proceed_status ();
2104 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
2111 proceed_after_attach (int pid
)
2113 /* Don't error out if the current thread is running, because
2114 there may be other stopped threads. */
2115 struct cleanup
*old_chain
;
2117 /* Backup current thread and selected frame. */
2118 old_chain
= make_cleanup_restore_current_thread ();
2120 iterate_over_threads (proceed_after_attach_callback
, &pid
);
2122 /* Restore selected ptid. */
2123 do_cleanups (old_chain
);
2128 * Should save/restore the tty state since it might be that the
2129 * program to be debugged was started on this tty and it wants
2130 * the tty in some state other than what we want. If it's running
2131 * on another terminal or without a terminal, then saving and
2132 * restoring the tty state is a harmless no-op.
2133 * This only needs to be done if we are attaching to a process.
2138 takes a program started up outside of gdb and ``attaches'' to it.
2139 This stops it cold in its tracks and allows us to start debugging it.
2140 and wait for the trace-trap that results from attaching. */
2143 attach_command_post_wait (char *args
, int from_tty
, int async_exec
)
2146 char *full_exec_path
= NULL
;
2147 struct inferior
*inferior
;
2149 inferior
= current_inferior ();
2150 inferior
->stop_soon
= NO_STOP_QUIETLY
;
2152 /* If no exec file is yet known, try to determine it from the
2154 exec_file
= (char *) get_exec_file (0);
2157 exec_file
= target_pid_to_exec_file (PIDGET (inferior_ptid
));
2160 /* It's possible we don't have a full path, but rather just a
2161 filename. Some targets, such as HP-UX, don't provide the
2164 Attempt to qualify the filename against the source path.
2165 (If that fails, we'll just fall back on the original
2166 filename. Not much more we can do...)
2168 if (!source_full_path_of (exec_file
, &full_exec_path
))
2169 full_exec_path
= xstrdup (exec_file
);
2171 exec_file_attach (full_exec_path
, from_tty
);
2172 symbol_file_add_main (full_exec_path
, from_tty
);
2177 reopen_exec_file ();
2181 /* Take any necessary post-attaching actions for this platform. */
2182 target_post_attach (PIDGET (inferior_ptid
));
2184 post_create_inferior (¤t_target
, from_tty
);
2186 /* Install inferior's terminal modes. */
2187 target_terminal_inferior ();
2191 /* The user requested an `attach&', so be sure to leave threads
2192 that didn't get a signal running. */
2194 /* Immediatelly resume all suspended threads of this inferior,
2195 and this inferior only. This should have no effect on
2196 already running threads. If a thread has been stopped with a
2197 signal, leave it be. */
2199 proceed_after_attach (inferior
->pid
);
2202 if (inferior_thread ()->stop_signal
== TARGET_SIGNAL_0
)
2204 clear_proceed_status ();
2205 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
2211 /* The user requested a plain `attach', so be sure to leave
2212 the inferior stopped. */
2214 if (target_can_async_p ())
2215 async_enable_stdin ();
2217 /* At least the current thread is already stopped. */
2219 /* In all-stop, by definition, all threads have to be already
2220 stopped at this point. In non-stop, however, although the
2221 selected thread is stopped, others may still be executing.
2222 Be sure to explicitly stop all threads of the process. This
2223 should have no effect on already stopped threads. */
2225 target_stop (pid_to_ptid (inferior
->pid
));
2227 /* Tell the user/frontend where we're stopped. */
2229 if (deprecated_attach_hook
)
2230 deprecated_attach_hook ();
2234 struct attach_command_continuation_args
2242 attach_command_continuation (void *args
)
2244 struct attach_command_continuation_args
*a
= args
;
2245 attach_command_post_wait (a
->args
, a
->from_tty
, a
->async_exec
);
2249 attach_command_continuation_free_args (void *args
)
2251 struct attach_command_continuation_args
*a
= args
;
2257 attach_command (char *args
, int from_tty
)
2260 char *full_exec_path
= NULL
;
2262 struct cleanup
*back_to
= make_cleanup (null_cleanup
, NULL
);
2264 dont_repeat (); /* Not for the faint of heart */
2266 if (gdbarch_has_global_solist (target_gdbarch
))
2267 /* Don't complain if all processes share the same symbol
2270 else if (target_has_execution
)
2272 if (query (_("A program is being debugged already. Kill it? ")))
2275 error (_("Not killed."));
2278 /* Clean up any leftovers from other runs. Some other things from
2279 this function should probably be moved into target_pre_inferior. */
2280 target_pre_inferior (from_tty
);
2282 if (non_stop
&& !target_supports_non_stop ())
2283 error (_("Cannot attach to this target in non-stop mode"));
2287 async_exec
= strip_bg_char (&args
);
2289 /* If we get a request for running in the bg but the target
2290 doesn't support it, error out. */
2291 if (async_exec
&& !target_can_async_p ())
2292 error (_("Asynchronous execution not supported on this target."));
2295 /* If we don't get a request of running in the bg, then we need
2296 to simulate synchronous (fg) execution. */
2297 if (!async_exec
&& target_can_async_p ())
2299 /* Simulate synchronous execution */
2300 async_disable_stdin ();
2301 make_cleanup ((make_cleanup_ftype
*)async_enable_stdin
, NULL
);
2304 target_attach (args
, from_tty
);
2306 /* Set up the "saved terminal modes" of the inferior
2307 based on what modes we are starting it with. */
2308 target_terminal_init ();
2310 /* Set up execution context to know that we should return from
2311 wait_for_inferior as soon as the target reports a stop. */
2312 init_wait_for_inferior ();
2313 clear_proceed_status ();
2317 /* If we find that the current thread isn't stopped, explicitly
2318 do so now, because we're going to install breakpoints and
2322 /* The user requested an `attach&'; stop just one thread. */
2323 target_stop (inferior_ptid
);
2325 /* The user requested an `attach', so stop all threads of this
2327 target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid
)));
2330 /* Some system don't generate traps when attaching to inferior.
2331 E.g. Mach 3 or GNU hurd. */
2332 if (!target_attach_no_wait
)
2334 struct inferior
*inferior
= current_inferior ();
2336 /* Careful here. See comments in inferior.h. Basically some
2337 OSes don't ignore SIGSTOPs on continue requests anymore. We
2338 need a way for handle_inferior_event to reset the stop_signal
2339 variable after an attach, and this is what
2340 STOP_QUIETLY_NO_SIGSTOP is for. */
2341 inferior
->stop_soon
= STOP_QUIETLY_NO_SIGSTOP
;
2343 if (target_can_async_p ())
2345 /* sync_execution mode. Wait for stop. */
2346 struct attach_command_continuation_args
*a
;
2348 a
= xmalloc (sizeof (*a
));
2349 a
->args
= xstrdup (args
);
2350 a
->from_tty
= from_tty
;
2351 a
->async_exec
= async_exec
;
2352 add_inferior_continuation (attach_command_continuation
, a
,
2353 attach_command_continuation_free_args
);
2354 discard_cleanups (back_to
);
2358 wait_for_inferior (0);
2361 attach_command_post_wait (args
, from_tty
, async_exec
);
2362 discard_cleanups (back_to
);
2365 /* We had just found out that the target was already attached to an
2366 inferior. PTID points at a thread of this new inferior, that is
2367 the most likely to be stopped right now, but not necessarily so.
2368 The new inferior is assumed to be already added to the inferior
2369 list at this point. If LEAVE_RUNNING, then leave the threads of
2370 this inferior running, except those we've explicitly seen reported
2374 notice_new_inferior (ptid_t ptid
, int leave_running
, int from_tty
)
2376 struct cleanup
* old_chain
;
2379 old_chain
= make_cleanup (null_cleanup
, NULL
);
2381 /* If in non-stop, leave threads as running as they were. If
2382 they're stopped for some reason other than us telling it to, the
2383 target reports a signal != TARGET_SIGNAL_0. We don't try to
2384 resume threads with such a stop signal. */
2385 async_exec
= non_stop
;
2387 if (!ptid_equal (inferior_ptid
, null_ptid
))
2388 make_cleanup_restore_current_thread ();
2390 switch_to_thread (ptid
);
2392 /* When we "notice" a new inferior we need to do all the things we
2393 would normally do if we had just attached to it. */
2395 if (is_executing (inferior_ptid
))
2397 struct inferior
*inferior
= current_inferior ();
2399 /* We're going to install breakpoints, and poke at memory,
2400 ensure that the inferior is stopped for a moment while we do
2402 target_stop (inferior_ptid
);
2404 inferior
->stop_soon
= STOP_QUIETLY_REMOTE
;
2406 /* Wait for stop before proceeding. */
2407 if (target_can_async_p ())
2409 struct attach_command_continuation_args
*a
;
2411 a
= xmalloc (sizeof (*a
));
2412 a
->args
= xstrdup ("");
2413 a
->from_tty
= from_tty
;
2414 a
->async_exec
= async_exec
;
2415 add_inferior_continuation (attach_command_continuation
, a
,
2416 attach_command_continuation_free_args
);
2418 do_cleanups (old_chain
);
2422 wait_for_inferior (0);
2425 async_exec
= leave_running
;
2426 attach_command_post_wait ("" /* args */, from_tty
, async_exec
);
2428 do_cleanups (old_chain
);
2433 * takes a program previously attached to and detaches it.
2434 * The program resumes execution and will no longer stop
2435 * on signals, etc. We better not have left any breakpoints
2436 * in the program or it'll die when it hits one. For this
2437 * to work, it may be necessary for the process to have been
2438 * previously attached. It *might* work if the program was
2439 * started via the normal ptrace (PTRACE_TRACEME).
2443 detach_command (char *args
, int from_tty
)
2445 dont_repeat (); /* Not for the faint of heart. */
2447 if (ptid_equal (inferior_ptid
, null_ptid
))
2448 error (_("The program is not being run."));
2450 target_detach (args
, from_tty
);
2452 /* If the solist is global across inferiors, don't clear it when we
2453 detach from a single inferior. */
2454 if (!gdbarch_has_global_solist (target_gdbarch
))
2455 no_shared_libraries (NULL
, from_tty
);
2457 /* If we still have inferiors to debug, then don't mess with their
2459 if (!have_inferiors ())
2460 init_thread_list ();
2462 if (deprecated_detach_hook
)
2463 deprecated_detach_hook ();
2466 /* Disconnect from the current target without resuming it (leaving it
2467 waiting for a debugger).
2469 We'd better not have left any breakpoints in the program or the
2470 next debugger will get confused. Currently only supported for some
2471 remote targets, since the normal attach mechanisms don't work on
2472 stopped processes on some native platforms (e.g. GNU/Linux). */
2475 disconnect_command (char *args
, int from_tty
)
2477 dont_repeat (); /* Not for the faint of heart */
2478 target_disconnect (args
, from_tty
);
2479 no_shared_libraries (NULL
, from_tty
);
2480 init_thread_list ();
2481 if (deprecated_detach_hook
)
2482 deprecated_detach_hook ();
2486 interrupt_target_1 (int all_threads
)
2490 ptid
= minus_one_ptid
;
2492 ptid
= inferior_ptid
;
2495 /* Tag the thread as having been explicitly requested to stop, so
2496 other parts of gdb know not to resume this thread automatically,
2497 if it was stopped due to an internal event. Limit this to
2498 non-stop mode, as when debugging a multi-threaded application in
2499 all-stop mode, we will only get one stop event --- it's undefined
2500 which thread will report the event. */
2502 set_stop_requested (ptid
, 1);
2505 /* Stop the execution of the target while running in async mode, in
2506 the backgound. In all-stop, stop the whole process. In non-stop
2507 mode, stop the current thread only by default, or stop all threads
2508 if the `-a' switch is used. */
2510 /* interrupt [-a] */
2512 interrupt_target_command (char *args
, int from_tty
)
2514 if (target_can_async_p ())
2516 int all_threads
= 0;
2518 dont_repeat (); /* Not for the faint of heart */
2521 && strncmp (args
, "-a", sizeof ("-a") - 1) == 0)
2524 if (!non_stop
&& all_threads
)
2525 error (_("-a is meaningless in all-stop mode."));
2527 interrupt_target_1 (all_threads
);
2532 print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
,
2533 struct frame_info
*frame
, const char *args
)
2535 if (gdbarch_print_float_info_p (gdbarch
))
2536 gdbarch_print_float_info (gdbarch
, file
, frame
, args
);
2540 int printed_something
= 0;
2543 regnum
< gdbarch_num_regs (gdbarch
)
2544 + gdbarch_num_pseudo_regs (gdbarch
);
2547 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, float_reggroup
))
2549 printed_something
= 1;
2550 gdbarch_print_registers_info (gdbarch
, file
, frame
, regnum
, 1);
2553 if (!printed_something
)
2554 fprintf_filtered (file
, "\
2555 No floating-point info available for this processor.\n");
2560 float_info (char *args
, int from_tty
)
2562 if (!target_has_registers
)
2563 error (_("The program has no registers now."));
2565 print_float_info (current_gdbarch
, gdb_stdout
,
2566 get_selected_frame (NULL
), args
);
2570 unset_command (char *args
, int from_tty
)
2572 printf_filtered (_("\
2573 \"unset\" must be followed by the name of an unset subcommand.\n"));
2574 help_list (unsetlist
, "unset ", -1, gdb_stdout
);
2578 _initialize_infcmd (void)
2580 struct cmd_list_element
*c
= NULL
;
2582 /* add the filename of the terminal connected to inferior I/O */
2583 add_setshow_filename_cmd ("inferior-tty", class_run
,
2584 &inferior_io_terminal
, _("\
2585 Set terminal for future runs of program being debugged."), _("\
2586 Show terminal for future runs of program being debugged."), _("\
2587 Usage: set inferior-tty /dev/pts/1"), NULL
, NULL
, &setlist
, &showlist
);
2588 add_com_alias ("tty", "set inferior-tty", class_alias
, 0);
2590 add_setshow_optional_filename_cmd ("args", class_run
,
2591 &inferior_args
, _("\
2592 Set argument list to give program being debugged when it is started."), _("\
2593 Show argument list to give program being debugged when it is started."), _("\
2594 Follow this command with any number of args, to be passed to the program."),
2597 &setlist
, &showlist
);
2599 c
= add_cmd ("environment", no_class
, environment_info
, _("\
2600 The environment to give the program, or one variable's value.\n\
2601 With an argument VAR, prints the value of environment variable VAR to\n\
2602 give the program being debugged. With no arguments, prints the entire\n\
2603 environment to be given to the program."), &showlist
);
2604 set_cmd_completer (c
, noop_completer
);
2606 add_prefix_cmd ("unset", no_class
, unset_command
,
2607 _("Complement to certain \"set\" commands."),
2608 &unsetlist
, "unset ", 0, &cmdlist
);
2610 c
= add_cmd ("environment", class_run
, unset_environment_command
, _("\
2611 Cancel environment variable VAR for the program.\n\
2612 This does not affect the program until the next \"run\" command."),
2614 set_cmd_completer (c
, noop_completer
);
2616 c
= add_cmd ("environment", class_run
, set_environment_command
, _("\
2617 Set environment variable value to give the program.\n\
2618 Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\
2619 VALUES of environment variables are uninterpreted strings.\n\
2620 This does not affect the program until the next \"run\" command."),
2622 set_cmd_completer (c
, noop_completer
);
2624 c
= add_com ("path", class_files
, path_command
, _("\
2625 Add directory DIR(s) to beginning of search path for object files.\n\
2626 $cwd in the path means the current working directory.\n\
2627 This path is equivalent to the $PATH shell variable. It is a list of\n\
2628 directories, separated by colons. These directories are searched to find\n\
2629 fully linked executable files and separately compiled object files as needed."));
2630 set_cmd_completer (c
, filename_completer
);
2632 c
= add_cmd ("paths", no_class
, path_info
, _("\
2633 Current search path for finding object files.\n\
2634 $cwd in the path means the current working directory.\n\
2635 This path is equivalent to the $PATH shell variable. It is a list of\n\
2636 directories, separated by colons. These directories are searched to find\n\
2637 fully linked executable files and separately compiled object files as needed."),
2639 set_cmd_completer (c
, noop_completer
);
2641 add_com ("kill", class_run
, kill_command
,
2642 _("Kill execution of program being debugged."));
2644 add_com ("attach", class_run
, attach_command
, _("\
2645 Attach to a process or file outside of GDB.\n\
2646 This command attaches to another target, of the same type as your last\n\
2647 \"target\" command (\"info files\" will show your target stack).\n\
2648 The command may take as argument a process id or a device file.\n\
2649 For a process id, you must have permission to send the process a signal,\n\
2650 and it must have the same effective uid as the debugger.\n\
2651 When using \"attach\" with a process id, the debugger finds the\n\
2652 program running in the process, looking first in the current working\n\
2653 directory, or (if not found there) using the source file search path\n\
2654 (see the \"directory\" command). You can also use the \"file\" command\n\
2655 to specify the program, and to load its symbol table."));
2657 add_prefix_cmd ("detach", class_run
, detach_command
, _("\
2658 Detach a process or file previously attached.\n\
2659 If a process, it is no longer traced, and it continues its execution. If\n\
2660 you were debugging a file, the file is closed and gdb no longer accesses it."),
2661 &detachlist
, "detach ", 0, &cmdlist
);
2663 add_com ("disconnect", class_run
, disconnect_command
, _("\
2664 Disconnect from a target.\n\
2665 The target will wait for another debugger to connect. Not available for\n\
2668 add_com ("signal", class_run
, signal_command
, _("\
2669 Continue program giving it signal specified by the argument.\n\
2670 An argument of \"0\" means continue program without giving it a signal."));
2672 add_com ("stepi", class_run
, stepi_command
, _("\
2673 Step one instruction exactly.\n\
2674 Argument N means do this N times (or till program stops for another reason)."));
2675 add_com_alias ("si", "stepi", class_alias
, 0);
2677 add_com ("nexti", class_run
, nexti_command
, _("\
2678 Step one instruction, but proceed through subroutine calls.\n\
2679 Argument N means do this N times (or till program stops for another reason)."));
2680 add_com_alias ("ni", "nexti", class_alias
, 0);
2682 add_com ("finish", class_run
, finish_command
, _("\
2683 Execute until selected stack frame returns.\n\
2684 Upon return, the value returned is printed and put in the value history."));
2685 add_com_alias ("fin", "finish", class_run
, 1);
2687 add_com ("next", class_run
, next_command
, _("\
2688 Step program, proceeding through subroutine calls.\n\
2689 Like the \"step\" command as long as subroutine calls do not happen;\n\
2690 when they do, the call is treated as one instruction.\n\
2691 Argument N means do this N times (or till program stops for another reason)."));
2692 add_com_alias ("n", "next", class_run
, 1);
2694 add_com_alias ("S", "next", class_run
, 1);
2696 add_com ("step", class_run
, step_command
, _("\
2697 Step program until it reaches a different source line.\n\
2698 Argument N means do this N times (or till program stops for another reason)."));
2699 add_com_alias ("s", "step", class_run
, 1);
2701 c
= add_com ("until", class_run
, until_command
, _("\
2702 Execute until the program reaches a source line greater than the current\n\
2703 or a specified location (same args as break command) within the current frame."));
2704 set_cmd_completer (c
, location_completer
);
2705 add_com_alias ("u", "until", class_run
, 1);
2707 c
= add_com ("advance", class_run
, advance_command
, _("\
2708 Continue the program up to the given location (same form as args for break command).\n\
2709 Execution will also stop upon exit from the current stack frame."));
2710 set_cmd_completer (c
, location_completer
);
2712 c
= add_com ("jump", class_run
, jump_command
, _("\
2713 Continue program being debugged at specified line or address.\n\
2714 Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\
2715 for an address to start at."));
2716 set_cmd_completer (c
, location_completer
);
2720 c
= add_com ("go", class_run
, go_command
, _("\
2721 Usage: go <location>\n\
2722 Continue program being debugged, stopping at specified line or \n\
2724 Give as argument either LINENUM or *ADDR, where ADDR is an \n\
2725 expression for an address to start at.\n\
2726 This command is a combination of tbreak and jump."));
2727 set_cmd_completer (c
, location_completer
);
2731 add_com_alias ("g", "go", class_run
, 1);
2733 c
= add_com ("continue", class_run
, continue_command
, _("\
2734 Continue program being debugged, after signal or breakpoint.\n\
2735 If proceeding from breakpoint, a number N may be used as an argument,\n\
2736 which means to set the ignore count of that breakpoint to N - 1 (so that\n\
2737 the breakpoint won't break until the Nth time it is reached).\n\
2739 If non-stop mode is enabled, continue only the current thread,\n\
2740 otherwise all the threads in the program are continued. To \n\
2741 continue all stopped threads in non-stop mode, use the -a option.\n\
2742 Specifying -a and an ignore count simultaneously is an error."));
2743 add_com_alias ("c", "cont", class_run
, 1);
2744 add_com_alias ("fg", "cont", class_run
, 1);
2746 c
= add_com ("run", class_run
, run_command
, _("\
2747 Start debugged program. You may specify arguments to give it.\n\
2748 Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\
2749 Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\
2750 With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\
2751 To cancel previous arguments and run with no arguments,\n\
2752 use \"set args\" without arguments."));
2753 set_cmd_completer (c
, filename_completer
);
2754 add_com_alias ("r", "run", class_run
, 1);
2756 add_com ("R", class_run
, run_no_args_command
,
2757 _("Start debugged program with no arguments."));
2759 c
= add_com ("start", class_run
, start_command
, _("\
2760 Run the debugged program until the beginning of the main procedure.\n\
2761 You may specify arguments to give to your program, just as with the\n\
2762 \"run\" command."));
2763 set_cmd_completer (c
, filename_completer
);
2765 c
= add_com ("interrupt", class_run
, interrupt_target_command
,
2766 _("Interrupt the execution of the debugged program.\n\
2767 If non-stop mode is enabled, interrupt only the current thread,\n\
2768 otherwise all the threads in the program are stopped. To \n\
2769 interrupt all running threads in non-stop mode, use the -a option."));
2771 add_info ("registers", nofp_registers_info
, _("\
2772 List of integer registers and their contents, for selected stack frame.\n\
2773 Register name as argument means describe only that register."));
2774 add_info_alias ("r", "registers", 1);
2777 add_com ("lr", class_info
, nofp_registers_info
, _("\
2778 List of integer registers and their contents, for selected stack frame.\n\
2779 Register name as argument means describe only that register."));
2780 add_info ("all-registers", all_registers_info
, _("\
2781 List of all registers and their contents, for selected stack frame.\n\
2782 Register name as argument means describe only that register."));
2784 add_info ("program", program_info
,
2785 _("Execution status of the program."));
2787 add_info ("float", float_info
,
2788 _("Print the status of the floating point unit\n"));
2790 add_info ("vector", vector_info
,
2791 _("Print the status of the vector unit\n"));
2793 inferior_environ
= make_environ ();
2794 init_environ (inferior_environ
);