1 /* Memory-access and commands for "inferior" process, for GDB.
3 Copyright (C) 1986-2019 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 #include "arch-utils.h"
28 #include "common/environ.h"
36 #include "completer.h"
38 #include "event-top.h"
39 #include "parser-defs.h"
41 #include "reggroups.h"
45 #include "observable.h"
46 #include "target-descriptions.h"
47 #include "user-regs.h"
48 #include "cli/cli-decode.h"
49 #include "gdbthread.h"
51 #include "inline-frame.h"
52 #include "tracepoint.h"
54 #include "continuations.h"
56 #include "cli/cli-utils.h"
58 #include "thread-fsm.h"
61 #include "common/gdb_optional.h"
64 /* Local functions: */
66 static void until_next_command (int);
68 static void step_1 (int, int, const char *);
70 #define ERROR_NO_INFERIOR \
71 if (!target_has_execution) error (_("The program is not being run."));
73 /* Scratch area where string containing arguments to give to the
74 program will be stored by 'set args'. As soon as anything is
75 stored, notice_args_set will move it into per-inferior storage.
76 Arguments are separated by spaces. Empty string (pointer to '\0')
79 static char *inferior_args_scratch
;
81 /* Scratch area where the new cwd will be stored by 'set cwd'. */
83 static char *inferior_cwd_scratch
;
85 /* Scratch area where 'set inferior-tty' will store user-provided value.
86 We'll immediate copy it into per-inferior storage. */
88 static char *inferior_io_terminal_scratch
;
90 /* Pid of our debugged inferior, or 0 if no inferior now.
91 Since various parts of infrun.c test this to see whether there is a program
92 being debugged it should be nonzero (currently 3 is used) for remote
97 /* Nonzero if stopped due to completion of a stack dummy routine. */
99 enum stop_stack_kind stop_stack_dummy
;
101 /* Nonzero if stopped due to a random (unexpected) signal in inferior
104 int stopped_by_random_signal
;
106 /* See inferior.h. */
108 int startup_with_shell
= 1;
111 /* Accessor routines. */
113 /* Set the io terminal for the current inferior. Ownership of
114 TERMINAL_NAME is not transferred. */
117 set_inferior_io_terminal (const char *terminal_name
)
119 xfree (current_inferior ()->terminal
);
121 if (terminal_name
!= NULL
&& *terminal_name
!= '\0')
122 current_inferior ()->terminal
= xstrdup (terminal_name
);
124 current_inferior ()->terminal
= NULL
;
128 get_inferior_io_terminal (void)
130 return current_inferior ()->terminal
;
134 set_inferior_tty_command (const char *args
, int from_tty
,
135 struct cmd_list_element
*c
)
137 /* CLI has assigned the user-provided value to inferior_io_terminal_scratch.
138 Now route it to current inferior. */
139 set_inferior_io_terminal (inferior_io_terminal_scratch
);
143 show_inferior_tty_command (struct ui_file
*file
, int from_tty
,
144 struct cmd_list_element
*c
, const char *value
)
146 /* Note that we ignore the passed-in value in favor of computing it
148 const char *inferior_io_terminal
= get_inferior_io_terminal ();
150 if (inferior_io_terminal
== NULL
)
151 inferior_io_terminal
= "";
152 fprintf_filtered (gdb_stdout
,
153 _("Terminal for future runs of program being debugged "
154 "is \"%s\".\n"), inferior_io_terminal
);
158 get_inferior_args (void)
160 if (current_inferior ()->argc
!= 0)
164 n
= construct_inferior_arguments (current_inferior ()->argc
,
165 current_inferior ()->argv
);
166 set_inferior_args (n
);
170 if (current_inferior ()->args
== NULL
)
171 current_inferior ()->args
= xstrdup ("");
173 return current_inferior ()->args
;
176 /* Set the arguments for the current inferior. Ownership of
177 NEWARGS is not transferred. */
180 set_inferior_args (const char *newargs
)
182 xfree (current_inferior ()->args
);
183 current_inferior ()->args
= newargs
? xstrdup (newargs
) : NULL
;
184 current_inferior ()->argc
= 0;
185 current_inferior ()->argv
= 0;
189 set_inferior_args_vector (int argc
, char **argv
)
191 current_inferior ()->argc
= argc
;
192 current_inferior ()->argv
= argv
;
195 /* Notice when `set args' is run. */
198 set_args_command (const char *args
, int from_tty
, struct cmd_list_element
*c
)
200 /* CLI has assigned the user-provided value to inferior_args_scratch.
201 Now route it to current inferior. */
202 set_inferior_args (inferior_args_scratch
);
205 /* Notice when `show args' is run. */
208 show_args_command (struct ui_file
*file
, int from_tty
,
209 struct cmd_list_element
*c
, const char *value
)
211 /* Note that we ignore the passed-in value in favor of computing it
213 deprecated_show_value_hack (file
, from_tty
, c
, get_inferior_args ());
216 /* See common/common-inferior.h. */
219 set_inferior_cwd (const char *cwd
)
221 struct inferior
*inf
= current_inferior ();
223 gdb_assert (inf
!= NULL
);
228 inf
->cwd
.reset (xstrdup (cwd
));
231 /* See common/common-inferior.h. */
236 return current_inferior ()->cwd
.get ();
239 /* Handle the 'set cwd' command. */
242 set_cwd_command (const char *args
, int from_tty
, struct cmd_list_element
*c
)
244 if (*inferior_cwd_scratch
== '\0')
245 set_inferior_cwd (NULL
);
247 set_inferior_cwd (inferior_cwd_scratch
);
250 /* Handle the 'show cwd' command. */
253 show_cwd_command (struct ui_file
*file
, int from_tty
,
254 struct cmd_list_element
*c
, const char *value
)
256 const char *cwd
= get_inferior_cwd ();
259 fprintf_filtered (gdb_stdout
,
261 You have not set the inferior's current working directory.\n\
262 The inferior will inherit GDB's cwd if native debugging, or the remote\n\
263 server's cwd if remote debugging.\n"));
265 fprintf_filtered (gdb_stdout
,
266 _("Current working directory that will be used "
267 "when starting the inferior is \"%s\".\n"), cwd
);
271 /* Compute command-line string given argument vector. This does the
272 same shell processing as fork_inferior. */
275 construct_inferior_arguments (int argc
, char **argv
)
279 if (startup_with_shell
)
282 /* This holds all the characters considered special to the
284 static const char special
[] = "\"!&*|[]{}<>?`~^=;, \t\n";
285 static const char quote
= '"';
287 /* This holds all the characters considered special to the
288 typical Unix shells. We include `^' because the SunOS
289 /bin/sh treats it as a synonym for `|'. */
290 static const char special
[] = "\"!#$&*()\\|[]{}<>?'`~^; \t\n";
291 static const char quote
= '\'';
297 /* We over-compute the size. It shouldn't matter. */
298 for (i
= 0; i
< argc
; ++i
)
299 length
+= 3 * strlen (argv
[i
]) + 1 + 2 * (argv
[i
][0] == '\0');
301 result
= (char *) xmalloc (length
);
304 for (i
= 0; i
< argc
; ++i
)
309 /* Need to handle empty arguments specially. */
310 if (argv
[i
][0] == '\0')
320 if (strpbrk (argv
[i
], special
))
326 for (cp
= argv
[i
]; *cp
; ++cp
)
330 /* A newline cannot be quoted with a backslash (it
331 just disappears), only by putting it inside
342 if (strchr (special
, *cp
) != NULL
)
358 /* In this case we can't handle arguments that contain spaces,
359 tabs, or newlines -- see breakup_args(). */
363 for (i
= 0; i
< argc
; ++i
)
365 char *cp
= strchr (argv
[i
], ' ');
367 cp
= strchr (argv
[i
], '\t');
369 cp
= strchr (argv
[i
], '\n');
371 error (_("can't handle command-line "
372 "argument containing whitespace"));
373 length
+= strlen (argv
[i
]) + 1;
376 result
= (char *) xmalloc (length
);
378 for (i
= 0; i
< argc
; ++i
)
381 strcat (result
, " ");
382 strcat (result
, argv
[i
]);
390 /* This function strips the '&' character (indicating background
391 execution) that is added as *the last* of the arguments ARGS of a
392 command. A copy of the incoming ARGS without the '&' is returned,
393 unless the resulting string after stripping is empty, in which case
394 NULL is returned. *BG_CHAR_P is an output boolean that indicates
395 whether the '&' character was found. */
397 static gdb::unique_xmalloc_ptr
<char>
398 strip_bg_char (const char *args
, int *bg_char_p
)
402 if (args
== NULL
|| *args
== '\0')
408 p
= args
+ strlen (args
);
412 while (p
> args
&& isspace (p
[-1]))
417 return gdb::unique_xmalloc_ptr
<char>
418 (savestring (args
, p
- args
));
420 return gdb::unique_xmalloc_ptr
<char> (nullptr);
424 return gdb::unique_xmalloc_ptr
<char> (xstrdup (args
));
427 /* Common actions to take after creating any sort of inferior, by any
428 means (running, attaching, connecting, et cetera). The target
429 should be stopped. */
432 post_create_inferior (struct target_ops
*target
, int from_tty
)
435 /* Be sure we own the terminal in case write operations are performed. */
436 target_terminal::ours_for_output ();
438 /* If the target hasn't taken care of this already, do it now.
439 Targets which need to access registers during to_open,
440 to_create_inferior, or to_attach should do it earlier; but many
442 target_find_description ();
444 /* Now that we know the register layout, retrieve current PC. But
445 if the PC is unavailable (e.g., we're opening a core file with
446 missing registers info), ignore it. */
447 thread_info
*thr
= inferior_thread ();
449 thr
->suspend
.stop_pc
= 0;
452 thr
->suspend
.stop_pc
= regcache_read_pc (get_current_regcache ());
454 CATCH (ex
, RETURN_MASK_ERROR
)
456 if (ex
.error
!= NOT_AVAILABLE_ERROR
)
457 throw_exception (ex
);
463 const unsigned solib_add_generation
464 = current_program_space
->solib_add_generation
;
466 /* Create the hooks to handle shared library load and unload
468 solib_create_inferior_hook (from_tty
);
470 if (current_program_space
->solib_add_generation
== solib_add_generation
)
472 /* The platform-specific hook should load initial shared libraries,
473 but didn't. FROM_TTY will be incorrectly 0 but such solib
474 targets should be fixed anyway. Call it only after the solib
475 target has been initialized by solib_create_inferior_hook. */
478 warning (_("platform-specific solib_create_inferior_hook did "
479 "not load initial shared libraries."));
481 /* If the solist is global across processes, there's no need to
483 if (!gdbarch_has_global_solist (target_gdbarch ()))
484 solib_add (NULL
, 0, auto_solib_add
);
488 /* If the user sets watchpoints before execution having started,
489 then she gets software watchpoints, because GDB can't know which
490 target will end up being pushed, or if it supports hardware
491 watchpoints or not. breakpoint_re_set takes care of promoting
492 watchpoints to hardware watchpoints if possible, however, if this
493 new inferior doesn't load shared libraries or we don't pull in
494 symbols from any other source on this target/arch,
495 breakpoint_re_set is never called. Call it now so that software
496 watchpoints get a chance to be promoted to hardware watchpoints
497 if the now pushed target supports hardware watchpoints. */
498 breakpoint_re_set ();
500 gdb::observers::inferior_created
.notify (target
, from_tty
);
503 /* Kill the inferior if already running. This function is designed
504 to be called when we are about to start the execution of the program
505 from the beginning. Ask the user to confirm that he wants to restart
506 the program being debugged when FROM_TTY is non-null. */
509 kill_if_already_running (int from_tty
)
511 if (inferior_ptid
!= null_ptid
&& target_has_execution
)
513 /* Bail out before killing the program if we will not be able to
515 target_require_runnable ();
518 && !query (_("The program being debugged has been started already.\n\
519 Start it from the beginning? ")))
520 error (_("Program not restarted."));
525 /* See inferior.h. */
528 prepare_execution_command (struct target_ops
*target
, int background
)
530 /* If we get a request for running in the bg but the target
531 doesn't support it, error out. */
532 if (background
&& !target
->can_async_p ())
533 error (_("Asynchronous execution not supported on this target."));
537 /* If we get a request for running in the fg, then we need to
538 simulate synchronous (fg) execution. Note no cleanup is
539 necessary for this. stdin is re-enabled whenever an error
540 reaches the top level. */
541 all_uis_on_sync_execution_starting ();
545 /* Determine how the new inferior will behave. */
549 /* Run program without any explicit stop during startup. */
552 /* Stop at the beginning of the program's main function. */
555 /* Stop at the first instruction of the program. */
556 RUN_STOP_AT_FIRST_INSN
559 /* Implement the "run" command. Force a stop during program start if
560 requested by RUN_HOW. */
563 run_command_1 (const char *args
, int from_tty
, enum run_how run_how
)
565 const char *exec_file
;
566 struct ui_out
*uiout
= current_uiout
;
567 struct target_ops
*run_target
;
572 kill_if_already_running (from_tty
);
574 init_wait_for_inferior ();
575 clear_breakpoint_hit_counts ();
577 /* Clean up any leftovers from other runs. Some other things from
578 this function should probably be moved into target_pre_inferior. */
579 target_pre_inferior (from_tty
);
581 /* The comment here used to read, "The exec file is re-read every
582 time we do a generic_mourn_inferior, so we just have to worry
583 about the symbol file." The `generic_mourn_inferior' function
584 gets called whenever the program exits. However, suppose the
585 program exits, and *then* the executable file changes? We need
586 to check again here. Since reopen_exec_file doesn't do anything
587 if the timestamp hasn't changed, I don't see the harm. */
591 gdb::unique_xmalloc_ptr
<char> stripped
= strip_bg_char (args
, &async_exec
);
592 args
= stripped
.get ();
594 /* Do validation and preparation before possibly changing anything
597 run_target
= find_run_target ();
599 prepare_execution_command (run_target
, async_exec
);
601 if (non_stop
&& !run_target
->supports_non_stop ())
602 error (_("The target does not support running in non-stop mode."));
604 /* Done. Can now set breakpoints, change inferior args, etc. */
606 /* Insert temporary breakpoint in main function if requested. */
607 if (run_how
== RUN_STOP_AT_MAIN
)
608 tbreak_command (main_name (), 0);
610 exec_file
= get_exec_file (0);
612 /* We keep symbols from add-symbol-file, on the grounds that the
613 user might want to add some symbols before running the program
614 (right?). But sometimes (dynamic loading where the user manually
615 introduces the new symbols with add-symbol-file), the code which
616 the symbols describe does not persist between runs. Currently
617 the user has to manually nuke all symbols between runs if they
618 want them to go away (PR 2207). This is probably reasonable. */
620 /* If there were other args, beside '&', process them. */
622 set_inferior_args (args
);
626 uiout
->field_string (NULL
, "Starting program");
629 uiout
->field_string ("execfile", exec_file
);
631 /* We call get_inferior_args() because we might need to compute
633 uiout
->field_string ("infargs", get_inferior_args ());
638 /* We call get_inferior_args() because we might need to compute
640 run_target
->create_inferior (exec_file
,
641 std::string (get_inferior_args ()),
642 current_inferior ()->environment
.envp (),
644 /* to_create_inferior should push the target, so after this point we
645 shouldn't refer to run_target again. */
648 /* We're starting off a new process. When we get out of here, in
649 non-stop mode, finish the state of all threads of that process,
650 but leave other threads alone, as they may be stopped in internal
651 events --- the frontend shouldn't see them as stopped. In
652 all-stop, always finish the state of all threads, as we may be
653 resuming more than just the new process. */
654 ptid_t finish_ptid
= (non_stop
655 ? ptid_t (current_inferior ()->pid
)
657 scoped_finish_thread_state
finish_state (finish_ptid
);
659 /* Pass zero for FROM_TTY, because at this point the "run" command
660 has done its thing; now we are setting up the running program. */
661 post_create_inferior (current_top_target (), 0);
663 /* Queue a pending event so that the program stops immediately. */
664 if (run_how
== RUN_STOP_AT_FIRST_INSN
)
666 thread_info
*thr
= inferior_thread ();
667 thr
->suspend
.waitstatus_pending_p
= 1;
668 thr
->suspend
.waitstatus
.kind
= TARGET_WAITKIND_STOPPED
;
669 thr
->suspend
.waitstatus
.value
.sig
= GDB_SIGNAL_0
;
672 /* Start the target running. Do not use -1 continuation as it would skip
673 breakpoint right at the entry point. */
674 proceed (regcache_read_pc (get_current_regcache ()), GDB_SIGNAL_0
);
676 /* Since there was no error, there's no need to finish the thread
678 finish_state
.release ();
682 run_command (const char *args
, int from_tty
)
684 run_command_1 (args
, from_tty
, RUN_NORMAL
);
687 /* Start the execution of the program up until the beginning of the main
691 start_command (const char *args
, int from_tty
)
693 /* Some languages such as Ada need to search inside the program
694 minimal symbols for the location where to put the temporary
695 breakpoint before starting. */
696 if (!have_minimal_symbols ())
697 error (_("No symbol table loaded. Use the \"file\" command."));
699 /* Run the program until reaching the main procedure... */
700 run_command_1 (args
, from_tty
, RUN_STOP_AT_MAIN
);
703 /* Start the execution of the program stopping at the first
707 starti_command (const char *args
, int from_tty
)
709 run_command_1 (args
, from_tty
, RUN_STOP_AT_FIRST_INSN
);
713 proceed_thread_callback (struct thread_info
*thread
, void *arg
)
715 /* We go through all threads individually instead of compressing
716 into a single target `resume_all' request, because some threads
717 may be stopped in internal breakpoints/events, or stopped waiting
718 for its turn in the displaced stepping queue (that is, they are
719 running && !executing). The target side has no idea about why
720 the thread is stopped, so a `resume_all' command would resume too
721 much. If/when GDB gains a way to tell the target `hold this
722 thread stopped until I say otherwise', then we can optimize
724 if (thread
->state
!= THREAD_STOPPED
)
727 switch_to_thread (thread
);
728 clear_proceed_status (0);
729 proceed ((CORE_ADDR
) -1, GDB_SIGNAL_DEFAULT
);
734 ensure_valid_thread (void)
736 if (inferior_ptid
== null_ptid
737 || inferior_thread ()->state
== THREAD_EXITED
)
738 error (_("Cannot execute this command without a live selected thread."));
741 /* If the user is looking at trace frames, any resumption of execution
742 is likely to mix up recorded and live target data. So simply
743 disallow those commands. */
746 ensure_not_tfind_mode (void)
748 if (get_traceframe_number () >= 0)
749 error (_("Cannot execute this command while looking at trace frames."));
752 /* Throw an error indicating the current thread is running. */
755 error_is_running (void)
757 error (_("Cannot execute this command while "
758 "the selected thread is running."));
761 /* Calls error_is_running if the current thread is running. */
764 ensure_not_running (void)
766 if (inferior_thread ()->state
== THREAD_RUNNING
)
771 continue_1 (int all_threads
)
774 ensure_not_tfind_mode ();
776 if (non_stop
&& all_threads
)
778 /* Don't error out if the current thread is running, because
779 there may be other stopped threads. */
781 /* Backup current thread and selected frame and restore on scope
783 scoped_restore_current_thread restore_thread
;
785 iterate_over_threads (proceed_thread_callback
, NULL
);
787 if (current_ui
->prompt_state
== PROMPT_BLOCKED
)
789 /* If all threads in the target were already running,
790 proceed_thread_callback ends up never calling proceed,
791 and so nothing calls this to put the inferior's terminal
792 settings in effect and remove stdin from the event loop,
793 which we must when running a foreground command. E.g.:
797 <all threads are running now>
800 <no thread was resumed, but the inferior now owns the terminal>
802 target_terminal::inferior ();
807 ensure_valid_thread ();
808 ensure_not_running ();
809 clear_proceed_status (0);
810 proceed ((CORE_ADDR
) -1, GDB_SIGNAL_DEFAULT
);
814 /* continue [-a] [proceed-count] [&] */
817 continue_command (const char *args
, int from_tty
)
824 /* Find out whether we must run in the background. */
825 gdb::unique_xmalloc_ptr
<char> stripped
= strip_bg_char (args
, &async_exec
);
826 args
= stripped
.get ();
830 if (startswith (args
, "-a"))
833 args
+= sizeof ("-a") - 1;
839 if (!non_stop
&& all_threads
)
840 error (_("`-a' is meaningless in all-stop mode."));
842 if (args
!= NULL
&& all_threads
)
843 error (_("Can't resume all threads and specify "
844 "proceed count simultaneously."));
846 /* If we have an argument left, set proceed count of breakpoint we
853 struct thread_info
*tp
;
856 tp
= inferior_thread ();
860 struct target_waitstatus ws
;
862 get_last_target_status (&last_ptid
, &ws
);
863 tp
= find_thread_ptid (last_ptid
);
866 bs
= tp
->control
.stop_bpstat
;
868 while ((stat
= bpstat_num (&bs
, &num
)) != 0)
871 set_ignore_count (num
,
872 parse_and_eval_long (args
) - 1,
874 /* set_ignore_count prints a message ending with a period.
875 So print two spaces before "Continuing.". */
877 printf_filtered (" ");
881 if (!stopped
&& from_tty
)
884 ("Not stopped at any breakpoint; argument ignored.\n");
889 ensure_not_tfind_mode ();
891 if (!non_stop
|| !all_threads
)
893 ensure_valid_thread ();
894 ensure_not_running ();
897 prepare_execution_command (current_top_target (), async_exec
);
900 printf_filtered (_("Continuing.\n"));
902 continue_1 (all_threads
);
905 /* Record the starting point of a "step" or "next" command. */
908 set_step_frame (void)
910 frame_info
*frame
= get_current_frame ();
912 symtab_and_line sal
= find_frame_sal (frame
);
913 set_step_info (frame
, sal
);
915 CORE_ADDR pc
= get_frame_pc (frame
);
916 thread_info
*tp
= inferior_thread ();
917 tp
->control
.step_start_function
= find_pc_function (pc
);
920 /* Step until outside of current statement. */
923 step_command (const char *count_string
, int from_tty
)
925 step_1 (0, 0, count_string
);
928 /* Likewise, but skip over subroutine calls as if single instructions. */
931 next_command (const char *count_string
, int from_tty
)
933 step_1 (1, 0, count_string
);
936 /* Likewise, but step only one instruction. */
939 stepi_command (const char *count_string
, int from_tty
)
941 step_1 (0, 1, count_string
);
945 nexti_command (const char *count_string
, int from_tty
)
947 step_1 (1, 1, count_string
);
950 /* Data for the FSM that manages the step/next/stepi/nexti
953 struct step_command_fsm
955 /* The base class. */
956 struct thread_fsm thread_fsm
;
958 /* How many steps left in a "step N"-like command. */
961 /* If true, this is a next/nexti, otherwise a step/stepi. */
962 int skip_subroutines
;
964 /* If true, this is a stepi/nexti, otherwise a step/step. */
968 static void step_command_fsm_clean_up (struct thread_fsm
*self
,
969 struct thread_info
*thread
);
970 static int step_command_fsm_should_stop (struct thread_fsm
*self
,
971 struct thread_info
*thread
);
972 static enum async_reply_reason
973 step_command_fsm_async_reply_reason (struct thread_fsm
*self
);
975 /* step_command_fsm's vtable. */
977 static struct thread_fsm_ops step_command_fsm_ops
=
980 step_command_fsm_clean_up
,
981 step_command_fsm_should_stop
,
982 NULL
, /* return_value */
983 step_command_fsm_async_reply_reason
,
986 /* Allocate a new step_command_fsm. */
988 static struct step_command_fsm
*
989 new_step_command_fsm (struct interp
*cmd_interp
)
991 struct step_command_fsm
*sm
;
993 sm
= XCNEW (struct step_command_fsm
);
994 thread_fsm_ctor (&sm
->thread_fsm
, &step_command_fsm_ops
, cmd_interp
);
999 /* Prepare for a step/next/etc. command. Any target resource
1000 allocated here is undone in the FSM's clean_up method. */
1003 step_command_fsm_prepare (struct step_command_fsm
*sm
,
1004 int skip_subroutines
, int single_inst
,
1005 int count
, struct thread_info
*thread
)
1007 sm
->skip_subroutines
= skip_subroutines
;
1008 sm
->single_inst
= single_inst
;
1011 /* Leave the si command alone. */
1012 if (!sm
->single_inst
|| sm
->skip_subroutines
)
1013 set_longjmp_breakpoint (thread
, get_frame_id (get_current_frame ()));
1015 thread
->control
.stepping_command
= 1;
1018 static int prepare_one_step (struct step_command_fsm
*sm
);
1021 step_1 (int skip_subroutines
, int single_inst
, const char *count_string
)
1025 struct thread_info
*thr
;
1026 struct step_command_fsm
*step_sm
;
1029 ensure_not_tfind_mode ();
1030 ensure_valid_thread ();
1031 ensure_not_running ();
1033 gdb::unique_xmalloc_ptr
<char> stripped
1034 = strip_bg_char (count_string
, &async_exec
);
1035 count_string
= stripped
.get ();
1037 prepare_execution_command (current_top_target (), async_exec
);
1039 count
= count_string
? parse_and_eval_long (count_string
) : 1;
1041 clear_proceed_status (1);
1043 /* Setup the execution command state machine to handle all the COUNT
1045 thr
= inferior_thread ();
1046 step_sm
= new_step_command_fsm (command_interp ());
1047 thr
->thread_fsm
= &step_sm
->thread_fsm
;
1049 step_command_fsm_prepare (step_sm
, skip_subroutines
,
1050 single_inst
, count
, thr
);
1052 /* Do only one step for now, before returning control to the event
1053 loop. Let the continuation figure out how many other steps we
1054 need to do, and handle them one at the time, through
1056 if (!prepare_one_step (step_sm
))
1057 proceed ((CORE_ADDR
) -1, GDB_SIGNAL_DEFAULT
);
1062 /* Stepped into an inline frame. Pretend that we've
1064 thread_fsm_clean_up (thr
->thread_fsm
, thr
);
1065 proceeded
= normal_stop ();
1067 inferior_event_handler (INF_EXEC_COMPLETE
, NULL
);
1068 all_uis_check_sync_execution_done ();
1072 /* Implementation of the 'should_stop' FSM method for stepping
1073 commands. Called after we are done with one step operation, to
1074 check whether we need to step again, before we print the prompt and
1075 return control to the user. If count is > 1, returns false, as we
1076 will need to keep going. */
1079 step_command_fsm_should_stop (struct thread_fsm
*self
, struct thread_info
*tp
)
1081 struct step_command_fsm
*sm
= (struct step_command_fsm
*) self
;
1083 if (tp
->control
.stop_step
)
1085 /* There are more steps to make, and we did stop due to
1086 ending a stepping range. Do another step. */
1087 if (--sm
->count
> 0)
1088 return prepare_one_step (sm
);
1090 thread_fsm_set_finished (self
);
1096 /* Implementation of the 'clean_up' FSM method for stepping commands. */
1099 step_command_fsm_clean_up (struct thread_fsm
*self
, struct thread_info
*thread
)
1101 struct step_command_fsm
*sm
= (struct step_command_fsm
*) self
;
1103 if (!sm
->single_inst
|| sm
->skip_subroutines
)
1104 delete_longjmp_breakpoint (thread
->global_num
);
1107 /* Implementation of the 'async_reply_reason' FSM method for stepping
1110 static enum async_reply_reason
1111 step_command_fsm_async_reply_reason (struct thread_fsm
*self
)
1113 return EXEC_ASYNC_END_STEPPING_RANGE
;
1116 /* Prepare for one step in "step N". The actual target resumption is
1117 done by the caller. Return true if we're done and should thus
1118 report a stop to the user. Returns false if the target needs to be
1122 prepare_one_step (struct step_command_fsm
*sm
)
1126 struct frame_info
*frame
= get_current_frame ();
1128 /* Don't assume THREAD is a valid thread id. It is set to -1 if
1129 the longjmp breakpoint was not required. Use the
1130 INFERIOR_PTID thread instead, which is the same thread when
1132 struct thread_info
*tp
= inferior_thread ();
1136 if (!sm
->single_inst
)
1140 /* Step at an inlined function behaves like "down". */
1141 if (!sm
->skip_subroutines
1142 && inline_skipped_frames (tp
))
1146 /* Pretend that we've ran. */
1147 resume_ptid
= user_visible_resume_ptid (1);
1148 set_running (resume_ptid
, 1);
1150 step_into_inline_frame (tp
);
1152 return prepare_one_step (sm
);
1155 pc
= get_frame_pc (frame
);
1156 find_pc_line_pc_range (pc
,
1157 &tp
->control
.step_range_start
,
1158 &tp
->control
.step_range_end
);
1160 tp
->control
.may_range_step
= 1;
1162 /* If we have no line info, switch to stepi mode. */
1163 if (tp
->control
.step_range_end
== 0 && step_stop_if_no_debug
)
1165 tp
->control
.step_range_start
= tp
->control
.step_range_end
= 1;
1166 tp
->control
.may_range_step
= 0;
1168 else if (tp
->control
.step_range_end
== 0)
1172 if (find_pc_partial_function (pc
, &name
,
1173 &tp
->control
.step_range_start
,
1174 &tp
->control
.step_range_end
) == 0)
1175 error (_("Cannot find bounds of current function"));
1177 target_terminal::ours_for_output ();
1178 printf_filtered (_("Single stepping until exit from function %s,"
1179 "\nwhich has no line number information.\n"),
1185 /* Say we are stepping, but stop after one insn whatever it does. */
1186 tp
->control
.step_range_start
= tp
->control
.step_range_end
= 1;
1187 if (!sm
->skip_subroutines
)
1189 Don't step over function calls, not even to functions lacking
1191 tp
->control
.step_over_calls
= STEP_OVER_NONE
;
1194 if (sm
->skip_subroutines
)
1195 tp
->control
.step_over_calls
= STEP_OVER_ALL
;
1201 thread_fsm_set_finished (&sm
->thread_fsm
);
1206 /* Continue program at specified address. */
1209 jump_command (const char *arg
, int from_tty
)
1211 struct gdbarch
*gdbarch
= get_current_arch ();
1218 ensure_not_tfind_mode ();
1219 ensure_valid_thread ();
1220 ensure_not_running ();
1222 /* Find out whether we must run in the background. */
1223 gdb::unique_xmalloc_ptr
<char> stripped
= strip_bg_char (arg
, &async_exec
);
1224 arg
= stripped
.get ();
1226 prepare_execution_command (current_top_target (), async_exec
);
1229 error_no_arg (_("starting address"));
1231 std::vector
<symtab_and_line
> sals
1232 = decode_line_with_last_displayed (arg
, DECODE_LINE_FUNFIRSTLINE
);
1233 if (sals
.size () != 1)
1234 error (_("Unreasonable jump request"));
1236 symtab_and_line
&sal
= sals
[0];
1238 if (sal
.symtab
== 0 && sal
.pc
== 0)
1239 error (_("No source file has been specified."));
1241 resolve_sal_pc (&sal
); /* May error out. */
1243 /* See if we are trying to jump to another function. */
1244 fn
= get_frame_function (get_current_frame ());
1245 sfn
= find_pc_function (sal
.pc
);
1246 if (fn
!= NULL
&& sfn
!= fn
)
1248 if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal
.line
,
1249 SYMBOL_PRINT_NAME (fn
)))
1251 error (_("Not confirmed."));
1258 struct obj_section
*section
;
1260 fixup_symbol_section (sfn
, 0);
1261 section
= SYMBOL_OBJ_SECTION (symbol_objfile (sfn
), sfn
);
1262 if (section_is_overlay (section
)
1263 && !section_is_mapped (section
))
1265 if (!query (_("WARNING!!! Destination is in "
1266 "unmapped overlay! Jump anyway? ")))
1268 error (_("Not confirmed."));
1278 printf_filtered (_("Continuing at "));
1279 fputs_filtered (paddress (gdbarch
, addr
), gdb_stdout
);
1280 printf_filtered (".\n");
1283 clear_proceed_status (0);
1284 proceed (addr
, GDB_SIGNAL_0
);
1287 /* Continue program giving it specified signal. */
1290 signal_command (const char *signum_exp
, int from_tty
)
1292 enum gdb_signal oursig
;
1295 dont_repeat (); /* Too dangerous. */
1297 ensure_not_tfind_mode ();
1298 ensure_valid_thread ();
1299 ensure_not_running ();
1301 /* Find out whether we must run in the background. */
1302 gdb::unique_xmalloc_ptr
<char> stripped
1303 = strip_bg_char (signum_exp
, &async_exec
);
1304 signum_exp
= stripped
.get ();
1306 prepare_execution_command (current_top_target (), async_exec
);
1309 error_no_arg (_("signal number"));
1311 /* It would be even slicker to make signal names be valid expressions,
1312 (the type could be "enum $signal" or some such), then the user could
1313 assign them to convenience variables. */
1314 oursig
= gdb_signal_from_name (signum_exp
);
1316 if (oursig
== GDB_SIGNAL_UNKNOWN
)
1318 /* No, try numeric. */
1319 int num
= parse_and_eval_long (signum_exp
);
1322 oursig
= GDB_SIGNAL_0
;
1324 oursig
= gdb_signal_from_command (num
);
1327 /* Look for threads other than the current that this command ends up
1328 resuming too (due to schedlock off), and warn if they'll get a
1329 signal delivered. "signal 0" is used to suppress a previous
1330 signal, but if the current thread is no longer the one that got
1331 the signal, then the user is potentially suppressing the signal
1332 of the wrong thread. */
1335 int must_confirm
= 0;
1337 /* This indicates what will be resumed. Either a single thread,
1338 a whole process, or all threads of all processes. */
1339 ptid_t resume_ptid
= user_visible_resume_ptid (0);
1341 for (thread_info
*tp
: all_non_exited_threads (resume_ptid
))
1343 if (tp
->ptid
== inferior_ptid
)
1346 if (tp
->suspend
.stop_signal
!= GDB_SIGNAL_0
1347 && signal_pass_state (tp
->suspend
.stop_signal
))
1350 printf_unfiltered (_("Note:\n"));
1351 printf_unfiltered (_(" Thread %s previously stopped with signal %s, %s.\n"),
1352 print_thread_id (tp
),
1353 gdb_signal_to_name (tp
->suspend
.stop_signal
),
1354 gdb_signal_to_string (tp
->suspend
.stop_signal
));
1360 && !query (_("Continuing thread %s (the current thread) with specified signal will\n"
1361 "still deliver the signals noted above to their respective threads.\n"
1362 "Continue anyway? "),
1363 print_thread_id (inferior_thread ())))
1364 error (_("Not confirmed."));
1369 if (oursig
== GDB_SIGNAL_0
)
1370 printf_filtered (_("Continuing with no signal.\n"));
1372 printf_filtered (_("Continuing with signal %s.\n"),
1373 gdb_signal_to_name (oursig
));
1376 clear_proceed_status (0);
1377 proceed ((CORE_ADDR
) -1, oursig
);
1380 /* Queue a signal to be delivered to the current thread. */
1383 queue_signal_command (const char *signum_exp
, int from_tty
)
1385 enum gdb_signal oursig
;
1386 struct thread_info
*tp
;
1389 ensure_not_tfind_mode ();
1390 ensure_valid_thread ();
1391 ensure_not_running ();
1393 if (signum_exp
== NULL
)
1394 error_no_arg (_("signal number"));
1396 /* It would be even slicker to make signal names be valid expressions,
1397 (the type could be "enum $signal" or some such), then the user could
1398 assign them to convenience variables. */
1399 oursig
= gdb_signal_from_name (signum_exp
);
1401 if (oursig
== GDB_SIGNAL_UNKNOWN
)
1403 /* No, try numeric. */
1404 int num
= parse_and_eval_long (signum_exp
);
1407 oursig
= GDB_SIGNAL_0
;
1409 oursig
= gdb_signal_from_command (num
);
1412 if (oursig
!= GDB_SIGNAL_0
1413 && !signal_pass_state (oursig
))
1414 error (_("Signal handling set to not pass this signal to the program."));
1416 tp
= inferior_thread ();
1417 tp
->suspend
.stop_signal
= oursig
;
1420 /* Data for the FSM that manages the until (with no argument)
1423 struct until_next_fsm
1425 /* The base class. */
1426 struct thread_fsm thread_fsm
;
1428 /* The thread that as current when the command was executed. */
1432 static int until_next_fsm_should_stop (struct thread_fsm
*self
,
1433 struct thread_info
*thread
);
1434 static void until_next_fsm_clean_up (struct thread_fsm
*self
,
1435 struct thread_info
*thread
);
1436 static enum async_reply_reason
1437 until_next_fsm_async_reply_reason (struct thread_fsm
*self
);
1439 /* until_next_fsm's vtable. */
1441 static struct thread_fsm_ops until_next_fsm_ops
=
1444 until_next_fsm_clean_up
,
1445 until_next_fsm_should_stop
,
1446 NULL
, /* return_value */
1447 until_next_fsm_async_reply_reason
,
1450 /* Allocate a new until_next_fsm. */
1452 static struct until_next_fsm
*
1453 new_until_next_fsm (struct interp
*cmd_interp
, int thread
)
1455 struct until_next_fsm
*sm
;
1457 sm
= XCNEW (struct until_next_fsm
);
1458 thread_fsm_ctor (&sm
->thread_fsm
, &until_next_fsm_ops
, cmd_interp
);
1460 sm
->thread
= thread
;
1465 /* Implementation of the 'should_stop' FSM method for the until (with
1469 until_next_fsm_should_stop (struct thread_fsm
*self
,
1470 struct thread_info
*tp
)
1472 if (tp
->control
.stop_step
)
1473 thread_fsm_set_finished (self
);
1478 /* Implementation of the 'clean_up' FSM method for the until (with no
1482 until_next_fsm_clean_up (struct thread_fsm
*self
, struct thread_info
*thread
)
1484 delete_longjmp_breakpoint (thread
->global_num
);
1487 /* Implementation of the 'async_reply_reason' FSM method for the until
1488 (with no arg) command. */
1490 static enum async_reply_reason
1491 until_next_fsm_async_reply_reason (struct thread_fsm
*self
)
1493 return EXEC_ASYNC_END_STEPPING_RANGE
;
1496 /* Proceed until we reach a different source line with pc greater than
1497 our current one or exit the function. We skip calls in both cases.
1499 Note that eventually this command should probably be changed so
1500 that only source lines are printed out when we hit the breakpoint
1501 we set. This may involve changes to wait_for_inferior and the
1502 proceed status code. */
1505 until_next_command (int from_tty
)
1507 struct frame_info
*frame
;
1509 struct symbol
*func
;
1510 struct symtab_and_line sal
;
1511 struct thread_info
*tp
= inferior_thread ();
1512 int thread
= tp
->global_num
;
1513 struct until_next_fsm
*sm
;
1515 clear_proceed_status (0);
1518 frame
= get_current_frame ();
1520 /* Step until either exited from this function or greater
1521 than the current line (if in symbolic section) or pc (if
1524 pc
= get_frame_pc (frame
);
1525 func
= find_pc_function (pc
);
1529 struct bound_minimal_symbol msymbol
= lookup_minimal_symbol_by_pc (pc
);
1531 if (msymbol
.minsym
== NULL
)
1532 error (_("Execution is not within a known function."));
1534 tp
->control
.step_range_start
= BMSYMBOL_VALUE_ADDRESS (msymbol
);
1535 /* The upper-bound of step_range is exclusive. In order to make PC
1536 within the range, set the step_range_end with PC + 1. */
1537 tp
->control
.step_range_end
= pc
+ 1;
1541 sal
= find_pc_line (pc
, 0);
1543 tp
->control
.step_range_start
= BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (func
));
1544 tp
->control
.step_range_end
= sal
.end
;
1546 tp
->control
.may_range_step
= 1;
1548 tp
->control
.step_over_calls
= STEP_OVER_ALL
;
1550 set_longjmp_breakpoint (tp
, get_frame_id (frame
));
1551 delete_longjmp_breakpoint_cleanup
lj_deleter (thread
);
1553 sm
= new_until_next_fsm (command_interp (), tp
->global_num
);
1554 tp
->thread_fsm
= &sm
->thread_fsm
;
1555 lj_deleter
.release ();
1557 proceed ((CORE_ADDR
) -1, GDB_SIGNAL_DEFAULT
);
1561 until_command (const char *arg
, int from_tty
)
1566 ensure_not_tfind_mode ();
1567 ensure_valid_thread ();
1568 ensure_not_running ();
1570 /* Find out whether we must run in the background. */
1571 gdb::unique_xmalloc_ptr
<char> stripped
= strip_bg_char (arg
, &async_exec
);
1572 arg
= stripped
.get ();
1574 prepare_execution_command (current_top_target (), async_exec
);
1577 until_break_command (arg
, from_tty
, 0);
1579 until_next_command (from_tty
);
1583 advance_command (const char *arg
, int from_tty
)
1588 ensure_not_tfind_mode ();
1589 ensure_valid_thread ();
1590 ensure_not_running ();
1593 error_no_arg (_("a location"));
1595 /* Find out whether we must run in the background. */
1596 gdb::unique_xmalloc_ptr
<char> stripped
= strip_bg_char (arg
, &async_exec
);
1597 arg
= stripped
.get ();
1599 prepare_execution_command (current_top_target (), async_exec
);
1601 until_break_command (arg
, from_tty
, 1);
1604 /* Return the value of the result of a function at the end of a 'finish'
1605 command/BP. DTOR_DATA (if not NULL) can represent inferior registers
1606 right after an inferior call has finished. */
1609 get_return_value (struct value
*function
, struct type
*value_type
)
1611 regcache
*stop_regs
= get_current_regcache ();
1612 struct gdbarch
*gdbarch
= stop_regs
->arch ();
1613 struct value
*value
;
1615 value_type
= check_typedef (value_type
);
1616 gdb_assert (TYPE_CODE (value_type
) != TYPE_CODE_VOID
);
1618 /* FIXME: 2003-09-27: When returning from a nested inferior function
1619 call, it's possible (with no help from the architecture vector)
1620 to locate and return/print a "struct return" value. This is just
1621 a more complicated case of what is already being done in the
1622 inferior function call code. In fact, when inferior function
1623 calls are made async, this will likely be made the norm. */
1625 switch (gdbarch_return_value (gdbarch
, function
, value_type
,
1628 case RETURN_VALUE_REGISTER_CONVENTION
:
1629 case RETURN_VALUE_ABI_RETURNS_ADDRESS
:
1630 case RETURN_VALUE_ABI_PRESERVES_ADDRESS
:
1631 value
= allocate_value (value_type
);
1632 gdbarch_return_value (gdbarch
, function
, value_type
, stop_regs
,
1633 value_contents_raw (value
), NULL
);
1635 case RETURN_VALUE_STRUCT_CONVENTION
:
1639 internal_error (__FILE__
, __LINE__
, _("bad switch"));
1645 /* The captured function return value/type and its position in the
1648 struct return_value_info
1650 /* The captured return value. May be NULL if we weren't able to
1651 retrieve it. See get_return_value. */
1652 struct value
*value
;
1654 /* The return type. In some cases, we'll not be able extract the
1655 return value, but we always know the type. */
1658 /* If we captured a value, this is the value history index. */
1659 int value_history_index
;
1662 /* Helper for print_return_value. */
1665 print_return_value_1 (struct ui_out
*uiout
, struct return_value_info
*rv
)
1667 if (rv
->value
!= NULL
)
1669 struct value_print_options opts
;
1672 uiout
->text ("Value returned is ");
1673 uiout
->field_fmt ("gdb-result-var", "$%d",
1674 rv
->value_history_index
);
1675 uiout
->text (" = ");
1676 get_user_print_options (&opts
);
1680 value_print (rv
->value
, &stb
, &opts
);
1681 uiout
->field_stream ("return-value", stb
);
1686 std::string type_name
= type_to_string (rv
->type
);
1687 uiout
->text ("Value returned has type: ");
1688 uiout
->field_string ("return-type", type_name
.c_str ());
1690 uiout
->text (" Cannot determine contents\n");
1694 /* Print the result of a function at the end of a 'finish' command.
1695 RV points at an object representing the captured return value/type
1696 and its position in the value history. */
1699 print_return_value (struct ui_out
*uiout
, struct return_value_info
*rv
)
1701 if (rv
->type
== NULL
1702 || TYPE_CODE (check_typedef (rv
->type
)) == TYPE_CODE_VOID
)
1707 /* print_return_value_1 can throw an exception in some
1708 circumstances. We need to catch this so that we still
1709 delete the breakpoint. */
1710 print_return_value_1 (uiout
, rv
);
1712 CATCH (ex
, RETURN_MASK_ALL
)
1714 exception_print (gdb_stdout
, ex
);
1719 /* Data for the FSM that manages the finish command. */
1721 struct finish_command_fsm
1723 /* The base class. */
1724 struct thread_fsm thread_fsm
;
1726 /* The momentary breakpoint set at the function's return address in
1728 struct breakpoint
*breakpoint
;
1730 /* The function that we're stepping out of. */
1731 struct symbol
*function
;
1733 /* If the FSM finishes successfully, this stores the function's
1735 struct return_value_info return_value
;
1738 static int finish_command_fsm_should_stop (struct thread_fsm
*self
,
1739 struct thread_info
*thread
);
1740 static void finish_command_fsm_clean_up (struct thread_fsm
*self
,
1741 struct thread_info
*thread
);
1742 static struct return_value_info
*
1743 finish_command_fsm_return_value (struct thread_fsm
*self
);
1744 static enum async_reply_reason
1745 finish_command_fsm_async_reply_reason (struct thread_fsm
*self
);
1747 /* finish_command_fsm's vtable. */
1749 static struct thread_fsm_ops finish_command_fsm_ops
=
1752 finish_command_fsm_clean_up
,
1753 finish_command_fsm_should_stop
,
1754 finish_command_fsm_return_value
,
1755 finish_command_fsm_async_reply_reason
,
1756 NULL
, /* should_notify_stop */
1759 /* Allocate a new finish_command_fsm. */
1761 static struct finish_command_fsm
*
1762 new_finish_command_fsm (struct interp
*cmd_interp
)
1764 struct finish_command_fsm
*sm
;
1766 sm
= XCNEW (struct finish_command_fsm
);
1767 thread_fsm_ctor (&sm
->thread_fsm
, &finish_command_fsm_ops
, cmd_interp
);
1772 /* Implementation of the 'should_stop' FSM method for the finish
1773 commands. Detects whether the thread stepped out of the function
1774 successfully, and if so, captures the function's return value and
1775 marks the FSM finished. */
1778 finish_command_fsm_should_stop (struct thread_fsm
*self
,
1779 struct thread_info
*tp
)
1781 struct finish_command_fsm
*f
= (struct finish_command_fsm
*) self
;
1782 struct return_value_info
*rv
= &f
->return_value
;
1784 if (f
->function
!= NULL
1785 && bpstat_find_breakpoint (tp
->control
.stop_bpstat
,
1786 f
->breakpoint
) != NULL
)
1789 thread_fsm_set_finished (self
);
1791 rv
->type
= TYPE_TARGET_TYPE (SYMBOL_TYPE (f
->function
));
1792 if (rv
->type
== NULL
)
1793 internal_error (__FILE__
, __LINE__
,
1794 _("finish_command: function has no target type"));
1796 if (TYPE_CODE (check_typedef (rv
->type
)) != TYPE_CODE_VOID
)
1800 func
= read_var_value (f
->function
, NULL
, get_current_frame ());
1801 rv
->value
= get_return_value (func
, rv
->type
);
1802 if (rv
->value
!= NULL
)
1803 rv
->value_history_index
= record_latest_value (rv
->value
);
1806 else if (tp
->control
.stop_step
)
1808 /* Finishing from an inline frame, or reverse finishing. In
1809 either case, there's no way to retrieve the return value. */
1810 thread_fsm_set_finished (self
);
1816 /* Implementation of the 'clean_up' FSM method for the finish
1820 finish_command_fsm_clean_up (struct thread_fsm
*self
,
1821 struct thread_info
*thread
)
1823 struct finish_command_fsm
*f
= (struct finish_command_fsm
*) self
;
1825 if (f
->breakpoint
!= NULL
)
1827 delete_breakpoint (f
->breakpoint
);
1828 f
->breakpoint
= NULL
;
1830 delete_longjmp_breakpoint (thread
->global_num
);
1833 /* Implementation of the 'return_value' FSM method for the finish
1836 static struct return_value_info
*
1837 finish_command_fsm_return_value (struct thread_fsm
*self
)
1839 struct finish_command_fsm
*f
= (struct finish_command_fsm
*) self
;
1841 return &f
->return_value
;
1844 /* Implementation of the 'async_reply_reason' FSM method for the
1847 static enum async_reply_reason
1848 finish_command_fsm_async_reply_reason (struct thread_fsm
*self
)
1850 if (execution_direction
== EXEC_REVERSE
)
1851 return EXEC_ASYNC_END_STEPPING_RANGE
;
1853 return EXEC_ASYNC_FUNCTION_FINISHED
;
1856 /* finish_backward -- helper function for finish_command. */
1859 finish_backward (struct finish_command_fsm
*sm
)
1861 struct symtab_and_line sal
;
1862 struct thread_info
*tp
= inferior_thread ();
1864 CORE_ADDR func_addr
;
1866 pc
= get_frame_pc (get_current_frame ());
1868 if (find_pc_partial_function (pc
, NULL
, &func_addr
, NULL
) == 0)
1869 error (_("Cannot find bounds of current function"));
1871 sal
= find_pc_line (func_addr
, 0);
1873 tp
->control
.proceed_to_finish
= 1;
1874 /* Special case: if we're sitting at the function entry point,
1875 then all we need to do is take a reverse singlestep. We
1876 don't need to set a breakpoint, and indeed it would do us
1879 Note that this can only happen at frame #0, since there's
1880 no way that a function up the stack can have a return address
1881 that's equal to its entry point. */
1885 struct frame_info
*frame
= get_selected_frame (NULL
);
1886 struct gdbarch
*gdbarch
= get_frame_arch (frame
);
1888 /* Set a step-resume at the function's entry point. Once that's
1889 hit, we'll do one more step backwards. */
1890 symtab_and_line sr_sal
;
1892 sr_sal
.pspace
= get_frame_program_space (frame
);
1893 insert_step_resume_breakpoint_at_sal (gdbarch
,
1894 sr_sal
, null_frame_id
);
1896 proceed ((CORE_ADDR
) -1, GDB_SIGNAL_DEFAULT
);
1900 /* We're almost there -- we just need to back up by one more
1902 tp
->control
.step_range_start
= tp
->control
.step_range_end
= 1;
1903 proceed ((CORE_ADDR
) -1, GDB_SIGNAL_DEFAULT
);
1907 /* finish_forward -- helper function for finish_command. FRAME is the
1908 frame that called the function we're about to step out of. */
1911 finish_forward (struct finish_command_fsm
*sm
, struct frame_info
*frame
)
1913 struct frame_id frame_id
= get_frame_id (frame
);
1914 struct gdbarch
*gdbarch
= get_frame_arch (frame
);
1915 struct symtab_and_line sal
;
1916 struct thread_info
*tp
= inferior_thread ();
1918 sal
= find_pc_line (get_frame_pc (frame
), 0);
1919 sal
.pc
= get_frame_pc (frame
);
1921 sm
->breakpoint
= set_momentary_breakpoint (gdbarch
, sal
,
1922 get_stack_frame_id (frame
),
1923 bp_finish
).release ();
1925 /* set_momentary_breakpoint invalidates FRAME. */
1928 set_longjmp_breakpoint (tp
, frame_id
);
1930 /* We want to print return value, please... */
1931 tp
->control
.proceed_to_finish
= 1;
1933 proceed ((CORE_ADDR
) -1, GDB_SIGNAL_DEFAULT
);
1936 /* Skip frames for "finish". */
1938 static struct frame_info
*
1939 skip_finish_frames (struct frame_info
*frame
)
1941 struct frame_info
*start
;
1947 frame
= skip_tailcall_frames (frame
);
1951 frame
= skip_unwritable_frames (frame
);
1955 while (start
!= frame
);
1960 /* "finish": Set a temporary breakpoint at the place the selected
1961 frame will return to, then continue. */
1964 finish_command (const char *arg
, int from_tty
)
1966 struct frame_info
*frame
;
1968 struct finish_command_fsm
*sm
;
1969 struct thread_info
*tp
;
1972 ensure_not_tfind_mode ();
1973 ensure_valid_thread ();
1974 ensure_not_running ();
1976 /* Find out whether we must run in the background. */
1977 gdb::unique_xmalloc_ptr
<char> stripped
= strip_bg_char (arg
, &async_exec
);
1978 arg
= stripped
.get ();
1980 prepare_execution_command (current_top_target (), async_exec
);
1983 error (_("The \"finish\" command does not take any arguments."));
1985 frame
= get_prev_frame (get_selected_frame (_("No selected frame.")));
1987 error (_("\"finish\" not meaningful in the outermost frame."));
1989 clear_proceed_status (0);
1991 tp
= inferior_thread ();
1993 sm
= new_finish_command_fsm (command_interp ());
1995 tp
->thread_fsm
= &sm
->thread_fsm
;
1997 /* Finishing from an inline frame is completely different. We don't
1998 try to show the "return value" - no way to locate it. */
1999 if (get_frame_type (get_selected_frame (_("No selected frame.")))
2002 /* Claim we are stepping in the calling frame. An empty step
2003 range means that we will stop once we aren't in a function
2004 called by that frame. We don't use the magic "1" value for
2005 step_range_end, because then infrun will think this is nexti,
2006 and not step over the rest of this inlined function call. */
2007 set_step_info (frame
, {});
2008 tp
->control
.step_range_start
= get_frame_pc (frame
);
2009 tp
->control
.step_range_end
= tp
->control
.step_range_start
;
2010 tp
->control
.step_over_calls
= STEP_OVER_ALL
;
2012 /* Print info on the selected frame, including level number but not
2016 printf_filtered (_("Run till exit from "));
2017 print_stack_frame (get_selected_frame (NULL
), 1, LOCATION
, 0);
2020 proceed ((CORE_ADDR
) -1, GDB_SIGNAL_DEFAULT
);
2024 /* Find the function we will return from. */
2026 sm
->function
= find_pc_function (get_frame_pc (get_selected_frame (NULL
)));
2028 /* Print info on the selected frame, including level number but not
2032 if (execution_direction
== EXEC_REVERSE
)
2033 printf_filtered (_("Run back to call of "));
2036 if (sm
->function
!= NULL
&& TYPE_NO_RETURN (sm
->function
->type
)
2037 && !query (_("warning: Function %s does not return normally.\n"
2038 "Try to finish anyway? "),
2039 SYMBOL_PRINT_NAME (sm
->function
)))
2040 error (_("Not confirmed."));
2041 printf_filtered (_("Run till exit from "));
2044 print_stack_frame (get_selected_frame (NULL
), 1, LOCATION
, 0);
2047 if (execution_direction
== EXEC_REVERSE
)
2048 finish_backward (sm
);
2051 frame
= skip_finish_frames (frame
);
2054 error (_("Cannot find the caller frame."));
2056 finish_forward (sm
, frame
);
2062 info_program_command (const char *args
, int from_tty
)
2068 if (!target_has_execution
)
2070 printf_filtered (_("The program being debugged is not being run.\n"));
2075 ptid
= inferior_ptid
;
2078 struct target_waitstatus ws
;
2080 get_last_target_status (&ptid
, &ws
);
2083 if (ptid
== null_ptid
|| ptid
== minus_one_ptid
)
2084 error (_("No selected thread."));
2086 thread_info
*tp
= find_thread_ptid (ptid
);
2088 if (tp
->state
== THREAD_EXITED
)
2089 error (_("Invalid selected thread."));
2090 else if (tp
->state
== THREAD_RUNNING
)
2091 error (_("Selected thread is running."));
2093 bs
= tp
->control
.stop_bpstat
;
2094 stat
= bpstat_num (&bs
, &num
);
2096 target_files_info ();
2097 printf_filtered (_("Program stopped at %s.\n"),
2098 paddress (target_gdbarch (), tp
->suspend
.stop_pc
));
2099 if (tp
->control
.stop_step
)
2100 printf_filtered (_("It stopped after being stepped.\n"));
2103 /* There may be several breakpoints in the same place, so this
2104 isn't as strange as it seems. */
2109 printf_filtered (_("It stopped at a breakpoint "
2110 "that has since been deleted.\n"));
2113 printf_filtered (_("It stopped at breakpoint %d.\n"), num
);
2114 stat
= bpstat_num (&bs
, &num
);
2117 else if (tp
->suspend
.stop_signal
!= GDB_SIGNAL_0
)
2119 printf_filtered (_("It stopped with signal %s, %s.\n"),
2120 gdb_signal_to_name (tp
->suspend
.stop_signal
),
2121 gdb_signal_to_string (tp
->suspend
.stop_signal
));
2126 printf_filtered (_("Type \"info stack\" or \"info "
2127 "registers\" for more information.\n"));
2132 environment_info (const char *var
, int from_tty
)
2136 const char *val
= current_inferior ()->environment
.get (var
);
2140 puts_filtered (var
);
2141 puts_filtered (" = ");
2142 puts_filtered (val
);
2143 puts_filtered ("\n");
2147 puts_filtered ("Environment variable \"");
2148 puts_filtered (var
);
2149 puts_filtered ("\" not defined.\n");
2154 char **envp
= current_inferior ()->environment
.envp ();
2156 for (int idx
= 0; envp
[idx
] != NULL
; ++idx
)
2158 puts_filtered (envp
[idx
]);
2159 puts_filtered ("\n");
2165 set_environment_command (const char *arg
, int from_tty
)
2167 const char *p
, *val
;
2171 error_no_arg (_("environment variable and value"));
2173 /* Find seperation between variable name and value. */
2174 p
= (char *) strchr (arg
, '=');
2175 val
= (char *) strchr (arg
, ' ');
2177 if (p
!= 0 && val
!= 0)
2179 /* We have both a space and an equals. If the space is before the
2180 equals, walk forward over the spaces til we see a nonspace
2181 (possibly the equals). */
2186 /* Now if the = is after the char following the spaces,
2187 take the char following the spaces. */
2191 else if (val
!= 0 && p
== 0)
2195 error_no_arg (_("environment variable to set"));
2197 if (p
== 0 || p
[1] == 0)
2201 p
= arg
+ strlen (arg
); /* So that savestring below will work. */
2205 /* Not setting variable value to null. */
2207 while (*val
== ' ' || *val
== '\t')
2211 while (p
!= arg
&& (p
[-1] == ' ' || p
[-1] == '\t'))
2214 std::string
var (arg
, p
- arg
);
2217 printf_filtered (_("Setting environment variable "
2218 "\"%s\" to null value.\n"),
2220 current_inferior ()->environment
.set (var
.c_str (), "");
2223 current_inferior ()->environment
.set (var
.c_str (), val
);
2227 unset_environment_command (const char *var
, int from_tty
)
2231 /* If there is no argument, delete all environment variables.
2232 Ask for confirmation if reading from the terminal. */
2233 if (!from_tty
|| query (_("Delete all environment variables? ")))
2234 current_inferior ()->environment
.clear ();
2237 current_inferior ()->environment
.unset (var
);
2240 /* Handle the execution path (PATH variable). */
2242 static const char path_var_name
[] = "PATH";
2245 path_info (const char *args
, int from_tty
)
2247 puts_filtered ("Executable and object file path: ");
2248 puts_filtered (current_inferior ()->environment
.get (path_var_name
));
2249 puts_filtered ("\n");
2252 /* Add zero or more directories to the front of the execution path. */
2255 path_command (const char *dirname
, int from_tty
)
2261 env
= current_inferior ()->environment
.get (path_var_name
);
2262 /* Can be null if path is not set. */
2265 exec_path
= xstrdup (env
);
2266 mod_path (dirname
, &exec_path
);
2267 current_inferior ()->environment
.set (path_var_name
, exec_path
);
2270 path_info ((char *) NULL
, from_tty
);
2275 pad_to_column (string_file
&stream
, int col
)
2277 /* At least one space must be printed to separate columns. */
2279 const int size
= stream
.size ();
2281 stream
.puts (n_spaces (col
- size
));
2284 /* Print out the register NAME with value VAL, to FILE, in the default
2288 default_print_one_register_info (struct ui_file
*file
,
2292 struct type
*regtype
= value_type (val
);
2293 int print_raw_format
;
2294 string_file format_stream
;
2297 value_column_1
= 15,
2298 /* Give enough room for "0x", 16 hex digits and two spaces in
2299 preceding column. */
2300 value_column_2
= value_column_1
+ 2 + 16 + 2,
2303 format_stream
.puts (name
);
2304 pad_to_column (format_stream
, value_column_1
);
2306 print_raw_format
= (value_entirely_available (val
)
2307 && !value_optimized_out (val
));
2309 /* If virtual format is floating, print it that way, and in raw
2311 if (TYPE_CODE (regtype
) == TYPE_CODE_FLT
2312 || TYPE_CODE (regtype
) == TYPE_CODE_DECFLOAT
)
2314 struct value_print_options opts
;
2315 const gdb_byte
*valaddr
= value_contents_for_printing (val
);
2316 enum bfd_endian byte_order
= gdbarch_byte_order (get_type_arch (regtype
));
2318 get_user_print_options (&opts
);
2322 value_embedded_offset (val
), 0,
2323 &format_stream
, 0, val
, &opts
, current_language
);
2325 if (print_raw_format
)
2327 pad_to_column (format_stream
, value_column_2
);
2328 format_stream
.puts ("(raw ");
2329 print_hex_chars (&format_stream
, valaddr
, TYPE_LENGTH (regtype
),
2331 format_stream
.putc (')');
2336 struct value_print_options opts
;
2338 /* Print the register in hex. */
2339 get_formatted_print_options (&opts
, 'x');
2342 value_embedded_offset (val
), 0,
2343 &format_stream
, 0, val
, &opts
, current_language
);
2344 /* If not a vector register, print it also according to its
2346 if (print_raw_format
&& TYPE_VECTOR (regtype
) == 0)
2348 pad_to_column (format_stream
, value_column_2
);
2349 get_user_print_options (&opts
);
2352 value_embedded_offset (val
), 0,
2353 &format_stream
, 0, val
, &opts
, current_language
);
2357 fputs_filtered (format_stream
.c_str (), file
);
2358 fprintf_filtered (file
, "\n");
2361 /* Print out the machine register regnum. If regnum is -1, print all
2362 registers (print_all == 1) or all non-float and non-vector
2363 registers (print_all == 0).
2365 For most machines, having all_registers_info() print the
2366 register(s) one per line is good enough. If a different format is
2367 required, (eg, for MIPS or Pyramid 90x, which both have lots of
2368 regs), or there is an existing convention for showing all the
2369 registers, define the architecture method PRINT_REGISTERS_INFO to
2370 provide that format. */
2373 default_print_registers_info (struct gdbarch
*gdbarch
,
2374 struct ui_file
*file
,
2375 struct frame_info
*frame
,
2376 int regnum
, int print_all
)
2379 const int numregs
= gdbarch_num_cooked_regs (gdbarch
);
2381 for (i
= 0; i
< numregs
; i
++)
2383 /* Decide between printing all regs, non-float / vector regs, or
2389 if (!gdbarch_register_reggroup_p (gdbarch
, i
, all_reggroup
))
2394 if (!gdbarch_register_reggroup_p (gdbarch
, i
, general_reggroup
))
2404 /* If the register name is empty, it is undefined for this
2405 processor, so don't display anything. */
2406 if (gdbarch_register_name (gdbarch
, i
) == NULL
2407 || *(gdbarch_register_name (gdbarch
, i
)) == '\0')
2410 default_print_one_register_info (file
,
2411 gdbarch_register_name (gdbarch
, i
),
2412 value_of_register (i
, frame
));
2417 registers_info (const char *addr_exp
, int fpregs
)
2419 struct frame_info
*frame
;
2420 struct gdbarch
*gdbarch
;
2422 if (!target_has_registers
)
2423 error (_("The program has no registers now."));
2424 frame
= get_selected_frame (NULL
);
2425 gdbarch
= get_frame_arch (frame
);
2429 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
2434 while (*addr_exp
!= '\0')
2439 /* Skip leading white space. */
2440 addr_exp
= skip_spaces (addr_exp
);
2442 /* Discard any leading ``$''. Check that there is something
2443 resembling a register following it. */
2444 if (addr_exp
[0] == '$')
2446 if (isspace ((*addr_exp
)) || (*addr_exp
) == '\0')
2447 error (_("Missing register name"));
2449 /* Find the start/end of this register name/num/group. */
2451 while ((*addr_exp
) != '\0' && !isspace ((*addr_exp
)))
2455 /* Figure out what we've found and display it. */
2457 /* A register name? */
2459 int regnum
= user_reg_map_name_to_regnum (gdbarch
, start
, end
- start
);
2463 /* User registers lie completely outside of the range of
2464 normal registers. Catch them early so that the target
2466 if (regnum
>= gdbarch_num_cooked_regs (gdbarch
))
2468 struct value
*regval
= value_of_user_reg (regnum
, frame
);
2469 const char *regname
= user_reg_map_regnum_to_name (gdbarch
,
2472 /* Print in the same fashion
2473 gdbarch_print_registers_info's default
2474 implementation prints. */
2475 default_print_one_register_info (gdb_stdout
,
2480 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
2481 frame
, regnum
, fpregs
);
2486 /* A register group? */
2488 struct reggroup
*group
;
2490 for (group
= reggroup_next (gdbarch
, NULL
);
2492 group
= reggroup_next (gdbarch
, group
))
2494 /* Don't bother with a length check. Should the user
2495 enter a short register group name, go with the first
2496 group that matches. */
2497 if (strncmp (start
, reggroup_name (group
), end
- start
) == 0)
2505 regnum
< gdbarch_num_cooked_regs (gdbarch
);
2508 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, group
))
2509 gdbarch_print_registers_info (gdbarch
,
2517 /* Nothing matched. */
2518 error (_("Invalid register `%.*s'"), (int) (end
- start
), start
);
2523 info_all_registers_command (const char *addr_exp
, int from_tty
)
2525 registers_info (addr_exp
, 1);
2529 info_registers_command (const char *addr_exp
, int from_tty
)
2531 registers_info (addr_exp
, 0);
2535 print_vector_info (struct ui_file
*file
,
2536 struct frame_info
*frame
, const char *args
)
2538 struct gdbarch
*gdbarch
= get_frame_arch (frame
);
2540 if (gdbarch_print_vector_info_p (gdbarch
))
2541 gdbarch_print_vector_info (gdbarch
, file
, frame
, args
);
2545 int printed_something
= 0;
2547 for (regnum
= 0; regnum
< gdbarch_num_cooked_regs (gdbarch
); regnum
++)
2549 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, vector_reggroup
))
2551 printed_something
= 1;
2552 gdbarch_print_registers_info (gdbarch
, file
, frame
, regnum
, 1);
2555 if (!printed_something
)
2556 fprintf_filtered (file
, "No vector information\n");
2561 info_vector_command (const char *args
, int from_tty
)
2563 if (!target_has_registers
)
2564 error (_("The program has no registers now."));
2566 print_vector_info (gdb_stdout
, get_selected_frame (NULL
), args
);
2569 /* Kill the inferior process. Make us have no inferior. */
2572 kill_command (const char *arg
, int from_tty
)
2574 /* FIXME: This should not really be inferior_ptid (or target_has_execution).
2575 It should be a distinct flag that indicates that a target is active, cuz
2576 some targets don't have processes! */
2578 if (inferior_ptid
== null_ptid
)
2579 error (_("The program is not being run."));
2580 if (!query (_("Kill the program being debugged? ")))
2581 error (_("Not confirmed."));
2583 int pid
= current_inferior ()->pid
;
2584 /* Save the pid as a string before killing the inferior, since that
2585 may unpush the current target, and we need the string after. */
2586 std::string pid_str
= target_pid_to_str (ptid_t (pid
));
2587 int infnum
= current_inferior ()->num
;
2591 if (print_inferior_events
)
2592 printf_unfiltered (_("[Inferior %d (%s) killed]\n"),
2593 infnum
, pid_str
.c_str ());
2595 /* If we still have other inferiors to debug, then don't mess with
2596 with their threads. */
2597 if (!have_inferiors ())
2599 init_thread_list (); /* Destroy thread info. */
2601 /* Killing off the inferior can leave us with a core file. If
2602 so, print the state we are left in. */
2603 if (target_has_stack
)
2605 printf_filtered (_("In %s,\n"), target_longname
);
2606 print_stack_frame (get_selected_frame (NULL
), 1, SRC_AND_LOC
, 1);
2609 bfd_cache_close_all ();
2612 /* Used in `attach&' command. Proceed threads of inferior INF iff
2613 they stopped due to debugger request, and when they did, they
2614 reported a clean stop (GDB_SIGNAL_0). Do not proceed threads that
2615 have been explicitly been told to stop. */
2618 proceed_after_attach (inferior
*inf
)
2620 /* Don't error out if the current thread is running, because
2621 there may be other stopped threads. */
2623 /* Backup current thread and selected frame. */
2624 scoped_restore_current_thread restore_thread
;
2626 for (thread_info
*thread
: inf
->non_exited_threads ())
2627 if (!thread
->executing
2628 && !thread
->stop_requested
2629 && thread
->suspend
.stop_signal
== GDB_SIGNAL_0
)
2631 switch_to_thread (thread
);
2632 clear_proceed_status (0);
2633 proceed ((CORE_ADDR
) -1, GDB_SIGNAL_DEFAULT
);
2637 /* See inferior.h. */
2640 setup_inferior (int from_tty
)
2642 struct inferior
*inferior
;
2644 inferior
= current_inferior ();
2645 inferior
->needs_setup
= 0;
2647 /* If no exec file is yet known, try to determine it from the
2649 if (get_exec_file (0) == NULL
)
2650 exec_file_locate_attach (inferior_ptid
.pid (), 1, from_tty
);
2653 reopen_exec_file ();
2657 /* Take any necessary post-attaching actions for this platform. */
2658 target_post_attach (inferior_ptid
.pid ());
2660 post_create_inferior (current_top_target (), from_tty
);
2663 /* What to do after the first program stops after attaching. */
2664 enum attach_post_wait_mode
2666 /* Do nothing. Leaves threads as they are. */
2667 ATTACH_POST_WAIT_NOTHING
,
2669 /* Re-resume threads that are marked running. */
2670 ATTACH_POST_WAIT_RESUME
,
2672 /* Stop all threads. */
2673 ATTACH_POST_WAIT_STOP
,
2676 /* Called after we've attached to a process and we've seen it stop for
2677 the first time. If ASYNC_EXEC is true, re-resume threads that
2678 should be running. Else if ATTACH, */
2681 attach_post_wait (const char *args
, int from_tty
, enum attach_post_wait_mode mode
)
2683 struct inferior
*inferior
;
2685 inferior
= current_inferior ();
2686 inferior
->control
.stop_soon
= NO_STOP_QUIETLY
;
2688 if (inferior
->needs_setup
)
2689 setup_inferior (from_tty
);
2691 if (mode
== ATTACH_POST_WAIT_RESUME
)
2693 /* The user requested an `attach&', so be sure to leave threads
2694 that didn't get a signal running. */
2696 /* Immediatelly resume all suspended threads of this inferior,
2697 and this inferior only. This should have no effect on
2698 already running threads. If a thread has been stopped with a
2699 signal, leave it be. */
2701 proceed_after_attach (inferior
);
2704 if (inferior_thread ()->suspend
.stop_signal
== GDB_SIGNAL_0
)
2706 clear_proceed_status (0);
2707 proceed ((CORE_ADDR
) -1, GDB_SIGNAL_DEFAULT
);
2711 else if (mode
== ATTACH_POST_WAIT_STOP
)
2713 /* The user requested a plain `attach', so be sure to leave
2714 the inferior stopped. */
2716 /* At least the current thread is already stopped. */
2718 /* In all-stop, by definition, all threads have to be already
2719 stopped at this point. In non-stop, however, although the
2720 selected thread is stopped, others may still be executing.
2721 Be sure to explicitly stop all threads of the process. This
2722 should have no effect on already stopped threads. */
2724 target_stop (ptid_t (inferior
->pid
));
2725 else if (target_is_non_stop_p ())
2727 struct thread_info
*lowest
= inferior_thread ();
2729 stop_all_threads ();
2731 /* It's not defined which thread will report the attach
2732 stop. For consistency, always select the thread with
2733 lowest GDB number, which should be the main thread, if it
2735 for (thread_info
*thread
: current_inferior ()->non_exited_threads ())
2736 if (thread
->inf
->num
< lowest
->inf
->num
2737 || thread
->per_inf_num
< lowest
->per_inf_num
)
2740 switch_to_thread (lowest
);
2743 /* Tell the user/frontend where we're stopped. */
2745 if (deprecated_attach_hook
)
2746 deprecated_attach_hook ();
2750 struct attach_command_continuation_args
2754 enum attach_post_wait_mode mode
;
2758 attach_command_continuation (void *args
, int err
)
2760 struct attach_command_continuation_args
*a
2761 = (struct attach_command_continuation_args
*) args
;
2766 attach_post_wait (a
->args
, a
->from_tty
, a
->mode
);
2770 attach_command_continuation_free_args (void *args
)
2772 struct attach_command_continuation_args
*a
2773 = (struct attach_command_continuation_args
*) args
;
2779 /* "attach" command entry point. Takes a program started up outside
2780 of gdb and ``attaches'' to it. This stops it cold in its tracks
2781 and allows us to start debugging it. */
2784 attach_command (const char *args
, int from_tty
)
2787 struct target_ops
*attach_target
;
2788 struct inferior
*inferior
= current_inferior ();
2789 enum attach_post_wait_mode mode
;
2791 dont_repeat (); /* Not for the faint of heart */
2793 if (gdbarch_has_global_solist (target_gdbarch ()))
2794 /* Don't complain if all processes share the same symbol
2797 else if (target_has_execution
)
2799 if (query (_("A program is being debugged already. Kill it? ")))
2802 error (_("Not killed."));
2805 /* Clean up any leftovers from other runs. Some other things from
2806 this function should probably be moved into target_pre_inferior. */
2807 target_pre_inferior (from_tty
);
2809 gdb::unique_xmalloc_ptr
<char> stripped
= strip_bg_char (args
, &async_exec
);
2810 args
= stripped
.get ();
2812 attach_target
= find_attach_target ();
2814 prepare_execution_command (attach_target
, async_exec
);
2816 if (non_stop
&& !attach_target
->supports_non_stop ())
2817 error (_("Cannot attach to this target in non-stop mode"));
2819 attach_target
->attach (args
, from_tty
);
2820 /* to_attach should push the target, so after this point we
2821 shouldn't refer to attach_target again. */
2822 attach_target
= NULL
;
2824 /* Set up the "saved terminal modes" of the inferior
2825 based on what modes we are starting it with. */
2826 target_terminal::init ();
2828 /* Install inferior's terminal modes. This may look like a no-op,
2829 as we've just saved them above, however, this does more than
2830 restore terminal settings:
2832 - installs a SIGINT handler that forwards SIGINT to the inferior.
2833 Otherwise a Ctrl-C pressed just while waiting for the initial
2834 stop would end up as a spurious Quit.
2836 - removes stdin from the event loop, which we need if attaching
2837 in the foreground, otherwise on targets that report an initial
2838 stop on attach (which are most) we'd process input/commands
2839 while we're in the event loop waiting for that stop. That is,
2840 before the attach continuation runs and the command is really
2842 target_terminal::inferior ();
2844 /* Set up execution context to know that we should return from
2845 wait_for_inferior as soon as the target reports a stop. */
2846 init_wait_for_inferior ();
2847 clear_proceed_status (0);
2849 inferior
->needs_setup
= 1;
2851 if (target_is_non_stop_p ())
2853 /* If we find that the current thread isn't stopped, explicitly
2854 do so now, because we're going to install breakpoints and
2858 /* The user requested an `attach&'; stop just one thread. */
2859 target_stop (inferior_ptid
);
2861 /* The user requested an `attach', so stop all threads of this
2863 target_stop (ptid_t (inferior_ptid
.pid ()));
2866 mode
= async_exec
? ATTACH_POST_WAIT_RESUME
: ATTACH_POST_WAIT_STOP
;
2868 /* Some system don't generate traps when attaching to inferior.
2869 E.g. Mach 3 or GNU hurd. */
2870 if (!target_attach_no_wait ())
2872 struct attach_command_continuation_args
*a
;
2874 /* Careful here. See comments in inferior.h. Basically some
2875 OSes don't ignore SIGSTOPs on continue requests anymore. We
2876 need a way for handle_inferior_event to reset the stop_signal
2877 variable after an attach, and this is what
2878 STOP_QUIETLY_NO_SIGSTOP is for. */
2879 inferior
->control
.stop_soon
= STOP_QUIETLY_NO_SIGSTOP
;
2881 /* Wait for stop. */
2882 a
= XNEW (struct attach_command_continuation_args
);
2883 a
->args
= xstrdup (args
);
2884 a
->from_tty
= from_tty
;
2886 add_inferior_continuation (attach_command_continuation
, a
,
2887 attach_command_continuation_free_args
);
2889 if (!target_is_async_p ())
2890 mark_infrun_async_event_handler ();
2894 attach_post_wait (args
, from_tty
, mode
);
2897 /* We had just found out that the target was already attached to an
2898 inferior. PTID points at a thread of this new inferior, that is
2899 the most likely to be stopped right now, but not necessarily so.
2900 The new inferior is assumed to be already added to the inferior
2901 list at this point. If LEAVE_RUNNING, then leave the threads of
2902 this inferior running, except those we've explicitly seen reported
2906 notice_new_inferior (thread_info
*thr
, int leave_running
, int from_tty
)
2908 enum attach_post_wait_mode mode
2909 = leave_running
? ATTACH_POST_WAIT_RESUME
: ATTACH_POST_WAIT_NOTHING
;
2911 gdb::optional
<scoped_restore_current_thread
> restore_thread
;
2913 if (inferior_ptid
!= null_ptid
)
2914 restore_thread
.emplace ();
2916 /* Avoid reading registers -- we haven't fetched the target
2918 switch_to_thread_no_regs (thr
);
2920 /* When we "notice" a new inferior we need to do all the things we
2921 would normally do if we had just attached to it. */
2925 struct attach_command_continuation_args
*a
;
2926 struct inferior
*inferior
= current_inferior ();
2928 /* We're going to install breakpoints, and poke at memory,
2929 ensure that the inferior is stopped for a moment while we do
2931 target_stop (inferior_ptid
);
2933 inferior
->control
.stop_soon
= STOP_QUIETLY_REMOTE
;
2935 /* Wait for stop before proceeding. */
2936 a
= XNEW (struct attach_command_continuation_args
);
2937 a
->args
= xstrdup ("");
2938 a
->from_tty
= from_tty
;
2940 add_inferior_continuation (attach_command_continuation
, a
,
2941 attach_command_continuation_free_args
);
2946 attach_post_wait ("" /* args */, from_tty
, mode
);
2951 * takes a program previously attached to and detaches it.
2952 * The program resumes execution and will no longer stop
2953 * on signals, etc. We better not have left any breakpoints
2954 * in the program or it'll die when it hits one. For this
2955 * to work, it may be necessary for the process to have been
2956 * previously attached. It *might* work if the program was
2957 * started via the normal ptrace (PTRACE_TRACEME).
2961 detach_command (const char *args
, int from_tty
)
2963 dont_repeat (); /* Not for the faint of heart. */
2965 if (inferior_ptid
== null_ptid
)
2966 error (_("The program is not being run."));
2968 query_if_trace_running (from_tty
);
2970 disconnect_tracing ();
2972 target_detach (current_inferior (), from_tty
);
2974 /* The current inferior process was just detached successfully. Get
2975 rid of breakpoints that no longer make sense. Note we don't do
2976 this within target_detach because that is also used when
2977 following child forks, and in that case we will want to transfer
2978 breakpoints to the child, not delete them. */
2979 breakpoint_init_inferior (inf_exited
);
2981 /* If the solist is global across inferiors, don't clear it when we
2982 detach from a single inferior. */
2983 if (!gdbarch_has_global_solist (target_gdbarch ()))
2984 no_shared_libraries (NULL
, from_tty
);
2986 if (deprecated_detach_hook
)
2987 deprecated_detach_hook ();
2990 /* Disconnect from the current target without resuming it (leaving it
2991 waiting for a debugger).
2993 We'd better not have left any breakpoints in the program or the
2994 next debugger will get confused. Currently only supported for some
2995 remote targets, since the normal attach mechanisms don't work on
2996 stopped processes on some native platforms (e.g. GNU/Linux). */
2999 disconnect_command (const char *args
, int from_tty
)
3001 dont_repeat (); /* Not for the faint of heart. */
3002 query_if_trace_running (from_tty
);
3003 disconnect_tracing ();
3004 target_disconnect (args
, from_tty
);
3005 no_shared_libraries (NULL
, from_tty
);
3006 init_thread_list ();
3007 if (deprecated_detach_hook
)
3008 deprecated_detach_hook ();
3012 interrupt_target_1 (int all_threads
)
3017 ptid
= minus_one_ptid
;
3019 ptid
= inferior_ptid
;
3024 target_interrupt ();
3026 /* Tag the thread as having been explicitly requested to stop, so
3027 other parts of gdb know not to resume this thread automatically,
3028 if it was stopped due to an internal event. Limit this to
3029 non-stop mode, as when debugging a multi-threaded application in
3030 all-stop mode, we will only get one stop event --- it's undefined
3031 which thread will report the event. */
3033 set_stop_requested (ptid
, 1);
3037 Stop the execution of the target while running in async mode, in
3038 the background. In all-stop, stop the whole process. In non-stop
3039 mode, stop the current thread only by default, or stop all threads
3040 if the `-a' switch is used. */
3043 interrupt_command (const char *args
, int from_tty
)
3045 if (target_can_async_p ())
3047 int all_threads
= 0;
3049 dont_repeat (); /* Not for the faint of heart. */
3052 && startswith (args
, "-a"))
3055 if (!non_stop
&& all_threads
)
3056 error (_("-a is meaningless in all-stop mode."));
3058 interrupt_target_1 (all_threads
);
3062 /* See inferior.h. */
3065 default_print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
,
3066 struct frame_info
*frame
, const char *args
)
3069 int printed_something
= 0;
3071 for (regnum
= 0; regnum
< gdbarch_num_cooked_regs (gdbarch
); regnum
++)
3073 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, float_reggroup
))
3075 printed_something
= 1;
3076 gdbarch_print_registers_info (gdbarch
, file
, frame
, regnum
, 1);
3079 if (!printed_something
)
3080 fprintf_filtered (file
, "No floating-point info "
3081 "available for this processor.\n");
3085 info_float_command (const char *args
, int from_tty
)
3087 struct frame_info
*frame
;
3089 if (!target_has_registers
)
3090 error (_("The program has no registers now."));
3092 frame
= get_selected_frame (NULL
);
3093 gdbarch_print_float_info (get_frame_arch (frame
), gdb_stdout
, frame
, args
);
3097 unset_command (const char *args
, int from_tty
)
3099 printf_filtered (_("\"unset\" must be followed by the "
3100 "name of an unset subcommand.\n"));
3101 help_list (unsetlist
, "unset ", all_commands
, gdb_stdout
);
3104 /* Implement `info proc' family of commands. */
3107 info_proc_cmd_1 (const char *args
, enum info_proc_what what
, int from_tty
)
3109 struct gdbarch
*gdbarch
= get_current_arch ();
3111 if (!target_info_proc (args
, what
))
3113 if (gdbarch_info_proc_p (gdbarch
))
3114 gdbarch_info_proc (gdbarch
, args
, what
);
3116 error (_("Not supported on this target."));
3120 /* Implement `info proc' when given without any futher parameters. */
3123 info_proc_cmd (const char *args
, int from_tty
)
3125 info_proc_cmd_1 (args
, IP_MINIMAL
, from_tty
);
3128 /* Implement `info proc mappings'. */
3131 info_proc_cmd_mappings (const char *args
, int from_tty
)
3133 info_proc_cmd_1 (args
, IP_MAPPINGS
, from_tty
);
3136 /* Implement `info proc stat'. */
3139 info_proc_cmd_stat (const char *args
, int from_tty
)
3141 info_proc_cmd_1 (args
, IP_STAT
, from_tty
);
3144 /* Implement `info proc status'. */
3147 info_proc_cmd_status (const char *args
, int from_tty
)
3149 info_proc_cmd_1 (args
, IP_STATUS
, from_tty
);
3152 /* Implement `info proc cwd'. */
3155 info_proc_cmd_cwd (const char *args
, int from_tty
)
3157 info_proc_cmd_1 (args
, IP_CWD
, from_tty
);
3160 /* Implement `info proc cmdline'. */
3163 info_proc_cmd_cmdline (const char *args
, int from_tty
)
3165 info_proc_cmd_1 (args
, IP_CMDLINE
, from_tty
);
3168 /* Implement `info proc exe'. */
3171 info_proc_cmd_exe (const char *args
, int from_tty
)
3173 info_proc_cmd_1 (args
, IP_EXE
, from_tty
);
3176 /* Implement `info proc files'. */
3179 info_proc_cmd_files (const char *args
, int from_tty
)
3181 info_proc_cmd_1 (args
, IP_FILES
, from_tty
);
3184 /* Implement `info proc all'. */
3187 info_proc_cmd_all (const char *args
, int from_tty
)
3189 info_proc_cmd_1 (args
, IP_ALL
, from_tty
);
3192 /* This help string is used for the run, start, and starti commands.
3193 It is defined as a macro to prevent duplication. */
3195 #define RUN_ARGS_HELP \
3196 "You may specify arguments to give it.\n\
3197 Args may include \"*\", or \"[...]\"; they are expanded using the\n\
3198 shell that will start the program (specified by the \"$SHELL\" environment\n\
3199 variable). Input and output redirection with \">\", \"<\", or \">>\"\n\
3200 are also allowed.\n\
3202 With no arguments, uses arguments last specified (with \"run\" or \n\
3203 \"set args\"). To cancel previous arguments and run with no arguments,\n\
3204 use \"set args\" without arguments.\n\
3206 To start the inferior without using a shell, use \"set startup-with-shell off\"."
3209 _initialize_infcmd (void)
3211 static struct cmd_list_element
*info_proc_cmdlist
;
3212 struct cmd_list_element
*c
= NULL
;
3213 const char *cmd_name
;
3215 /* Add the filename of the terminal connected to inferior I/O. */
3216 add_setshow_optional_filename_cmd ("inferior-tty", class_run
,
3217 &inferior_io_terminal_scratch
, _("\
3218 Set terminal for future runs of program being debugged."), _("\
3219 Show terminal for future runs of program being debugged."), _("\
3220 Usage: set inferior-tty [TTY]\n\n\
3221 If TTY is omitted, the default behavior of using the same terminal as GDB\n\
3223 set_inferior_tty_command
,
3224 show_inferior_tty_command
,
3225 &setlist
, &showlist
);
3226 cmd_name
= "inferior-tty";
3227 c
= lookup_cmd (&cmd_name
, setlist
, "", -1, 1);
3228 gdb_assert (c
!= NULL
);
3229 add_alias_cmd ("tty", c
, class_alias
, 0, &cmdlist
);
3232 add_setshow_string_noescape_cmd (cmd_name
, class_run
,
3233 &inferior_args_scratch
, _("\
3234 Set argument list to give program being debugged when it is started."), _("\
3235 Show argument list to give program being debugged when it is started."), _("\
3236 Follow this command with any number of args, to be passed to the program."),
3239 &setlist
, &showlist
);
3240 c
= lookup_cmd (&cmd_name
, setlist
, "", -1, 1);
3241 gdb_assert (c
!= NULL
);
3242 set_cmd_completer (c
, filename_completer
);
3245 add_setshow_string_noescape_cmd (cmd_name
, class_run
,
3246 &inferior_cwd_scratch
, _("\
3247 Set the current working directory to be used when the inferior is started.\n\
3248 Changing this setting does not have any effect on inferiors that are\n\
3251 Show the current working directory that is used when the inferior is started."),
3253 Use this command to change the current working directory that will be used\n\
3254 when the inferior is started. This setting does not affect GDB's current\n\
3255 working directory."),
3258 &setlist
, &showlist
);
3259 c
= lookup_cmd (&cmd_name
, setlist
, "", -1, 1);
3260 gdb_assert (c
!= NULL
);
3261 set_cmd_completer (c
, filename_completer
);
3263 c
= add_cmd ("environment", no_class
, environment_info
, _("\
3264 The environment to give the program, or one variable's value.\n\
3265 With an argument VAR, prints the value of environment variable VAR to\n\
3266 give the program being debugged. With no arguments, prints the entire\n\
3267 environment to be given to the program."), &showlist
);
3268 set_cmd_completer (c
, noop_completer
);
3270 add_prefix_cmd ("unset", no_class
, unset_command
,
3271 _("Complement to certain \"set\" commands."),
3272 &unsetlist
, "unset ", 0, &cmdlist
);
3274 c
= add_cmd ("environment", class_run
, unset_environment_command
, _("\
3275 Cancel environment variable VAR for the program.\n\
3276 This does not affect the program until the next \"run\" command."),
3278 set_cmd_completer (c
, noop_completer
);
3280 c
= add_cmd ("environment", class_run
, set_environment_command
, _("\
3281 Set environment variable value to give the program.\n\
3282 Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\
3283 VALUES of environment variables are uninterpreted strings.\n\
3284 This does not affect the program until the next \"run\" command."),
3286 set_cmd_completer (c
, noop_completer
);
3288 c
= add_com ("path", class_files
, path_command
, _("\
3289 Add directory DIR(s) to beginning of search path for object files.\n\
3290 $cwd in the path means the current working directory.\n\
3291 This path is equivalent to the $PATH shell variable. It is a list of\n\
3292 directories, separated by colons. These directories are searched to find\n\
3293 fully linked executable files and separately compiled object files as \
3295 set_cmd_completer (c
, filename_completer
);
3297 c
= add_cmd ("paths", no_class
, path_info
, _("\
3298 Current search path for finding object files.\n\
3299 $cwd in the path means the current working directory.\n\
3300 This path is equivalent to the $PATH shell variable. It is a list of\n\
3301 directories, separated by colons. These directories are searched to find\n\
3302 fully linked executable files and separately compiled object files as \
3305 set_cmd_completer (c
, noop_completer
);
3307 add_prefix_cmd ("kill", class_run
, kill_command
,
3308 _("Kill execution of program being debugged."),
3309 &killlist
, "kill ", 0, &cmdlist
);
3311 add_com ("attach", class_run
, attach_command
, _("\
3312 Attach to a process or file outside of GDB.\n\
3313 This command attaches to another target, of the same type as your last\n\
3314 \"target\" command (\"info files\" will show your target stack).\n\
3315 The command may take as argument a process id or a device file.\n\
3316 For a process id, you must have permission to send the process a signal,\n\
3317 and it must have the same effective uid as the debugger.\n\
3318 When using \"attach\" with a process id, the debugger finds the\n\
3319 program running in the process, looking first in the current working\n\
3320 directory, or (if not found there) using the source file search path\n\
3321 (see the \"directory\" command). You can also use the \"file\" command\n\
3322 to specify the program, and to load its symbol table."));
3324 add_prefix_cmd ("detach", class_run
, detach_command
, _("\
3325 Detach a process or file previously attached.\n\
3326 If a process, it is no longer traced, and it continues its execution. If\n\
3327 you were debugging a file, the file is closed and gdb no longer accesses it."),
3328 &detachlist
, "detach ", 0, &cmdlist
);
3330 add_com ("disconnect", class_run
, disconnect_command
, _("\
3331 Disconnect from a target.\n\
3332 The target will wait for another debugger to connect. Not available for\n\
3335 c
= add_com ("signal", class_run
, signal_command
, _("\
3336 Continue program with the specified signal.\n\
3337 Usage: signal SIGNAL\n\
3338 The SIGNAL argument is processed the same as the handle command.\n\
3340 An argument of \"0\" means continue the program without sending it a signal.\n\
3341 This is useful in cases where the program stopped because of a signal,\n\
3342 and you want to resume the program while discarding the signal.\n\
3344 In a multi-threaded program the signal is delivered to, or discarded from,\n\
3345 the current thread only."));
3346 set_cmd_completer (c
, signal_completer
);
3348 c
= add_com ("queue-signal", class_run
, queue_signal_command
, _("\
3349 Queue a signal to be delivered to the current thread when it is resumed.\n\
3350 Usage: queue-signal SIGNAL\n\
3351 The SIGNAL argument is processed the same as the handle command.\n\
3352 It is an error if the handling state of SIGNAL is \"nopass\".\n\
3354 An argument of \"0\" means remove any currently queued signal from\n\
3355 the current thread. This is useful in cases where the program stopped\n\
3356 because of a signal, and you want to resume it while discarding the signal.\n\
3358 In a multi-threaded program the signal is queued with, or discarded from,\n\
3359 the current thread only."));
3360 set_cmd_completer (c
, signal_completer
);
3362 add_com ("stepi", class_run
, stepi_command
, _("\
3363 Step one instruction exactly.\n\
3365 Argument N means step N times (or till program stops for another \
3367 add_com_alias ("si", "stepi", class_alias
, 0);
3369 add_com ("nexti", class_run
, nexti_command
, _("\
3370 Step one instruction, but proceed through subroutine calls.\n\
3372 Argument N means step N times (or till program stops for another \
3374 add_com_alias ("ni", "nexti", class_alias
, 0);
3376 add_com ("finish", class_run
, finish_command
, _("\
3377 Execute until selected stack frame returns.\n\
3379 Upon return, the value returned is printed and put in the value history."));
3380 add_com_alias ("fin", "finish", class_run
, 1);
3382 add_com ("next", class_run
, next_command
, _("\
3383 Step program, proceeding through subroutine calls.\n\
3385 Unlike \"step\", if the current source line calls a subroutine,\n\
3386 this command does not enter the subroutine, but instead steps over\n\
3387 the call, in effect treating it as a single source line."));
3388 add_com_alias ("n", "next", class_run
, 1);
3390 add_com ("step", class_run
, step_command
, _("\
3391 Step program until it reaches a different source line.\n\
3393 Argument N means step N times (or till program stops for another \
3395 add_com_alias ("s", "step", class_run
, 1);
3397 c
= add_com ("until", class_run
, until_command
, _("\
3398 Execute until the program reaches a source line greater than the current\n\
3399 or a specified location (same args as break command) within the current \
3401 set_cmd_completer (c
, location_completer
);
3402 add_com_alias ("u", "until", class_run
, 1);
3404 c
= add_com ("advance", class_run
, advance_command
, _("\
3405 Continue the program up to the given location (same form as args for break \
3407 Execution will also stop upon exit from the current stack frame."));
3408 set_cmd_completer (c
, location_completer
);
3410 c
= add_com ("jump", class_run
, jump_command
, _("\
3411 Continue program being debugged at specified line or address.\n\
3412 Usage: jump LOCATION\n\
3413 Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\
3414 for an address to start at."));
3415 set_cmd_completer (c
, location_completer
);
3416 add_com_alias ("j", "jump", class_run
, 1);
3418 add_com ("continue", class_run
, continue_command
, _("\
3419 Continue program being debugged, after signal or breakpoint.\n\
3420 Usage: continue [N]\n\
3421 If proceeding from breakpoint, a number N may be used as an argument,\n\
3422 which means to set the ignore count of that breakpoint to N - 1 (so that\n\
3423 the breakpoint won't break until the Nth time it is reached).\n\
3425 If non-stop mode is enabled, continue only the current thread,\n\
3426 otherwise all the threads in the program are continued. To \n\
3427 continue all stopped threads in non-stop mode, use the -a option.\n\
3428 Specifying -a and an ignore count simultaneously is an error."));
3429 add_com_alias ("c", "cont", class_run
, 1);
3430 add_com_alias ("fg", "cont", class_run
, 1);
3432 c
= add_com ("run", class_run
, run_command
, _("\
3433 Start debugged program.\n"
3435 set_cmd_completer (c
, filename_completer
);
3436 add_com_alias ("r", "run", class_run
, 1);
3438 c
= add_com ("start", class_run
, start_command
, _("\
3439 Start the debugged program stopping at the beginning of the main procedure.\n"
3441 set_cmd_completer (c
, filename_completer
);
3443 c
= add_com ("starti", class_run
, starti_command
, _("\
3444 Start the debugged program stopping at the first instruction.\n"
3446 set_cmd_completer (c
, filename_completer
);
3448 add_com ("interrupt", class_run
, interrupt_command
,
3449 _("Interrupt the execution of the debugged program.\n\
3450 If non-stop mode is enabled, interrupt only the current thread,\n\
3451 otherwise all the threads in the program are stopped. To \n\
3452 interrupt all running threads in non-stop mode, use the -a option."));
3454 c
= add_info ("registers", info_registers_command
, _("\
3455 List of integer registers and their contents, for selected stack frame.\n\
3456 One or more register names as argument means describe the given registers.\n\
3457 One or more register group names as argument means describe the registers\n\
3458 in the named register groups."));
3459 add_info_alias ("r", "registers", 1);
3460 set_cmd_completer (c
, reg_or_group_completer
);
3462 c
= add_info ("all-registers", info_all_registers_command
, _("\
3463 List of all registers and their contents, for selected stack frame.\n\
3464 One or more register names as argument means describe the given registers.\n\
3465 One or more register group names as argument means describe the registers\n\
3466 in the named register groups."));
3467 set_cmd_completer (c
, reg_or_group_completer
);
3469 add_info ("program", info_program_command
,
3470 _("Execution status of the program."));
3472 add_info ("float", info_float_command
,
3473 _("Print the status of the floating point unit\n"));
3475 add_info ("vector", info_vector_command
,
3476 _("Print the status of the vector unit\n"));
3478 add_prefix_cmd ("proc", class_info
, info_proc_cmd
,
3480 Show additional information about a process.\n\
3481 Specify any process id, or use the program being debugged by default."),
3482 &info_proc_cmdlist
, "info proc ",
3483 1/*allow-unknown*/, &infolist
);
3485 add_cmd ("mappings", class_info
, info_proc_cmd_mappings
, _("\
3486 List memory regions mapped by the specified process."),
3487 &info_proc_cmdlist
);
3489 add_cmd ("stat", class_info
, info_proc_cmd_stat
, _("\
3490 List process info from /proc/PID/stat."),
3491 &info_proc_cmdlist
);
3493 add_cmd ("status", class_info
, info_proc_cmd_status
, _("\
3494 List process info from /proc/PID/status."),
3495 &info_proc_cmdlist
);
3497 add_cmd ("cwd", class_info
, info_proc_cmd_cwd
, _("\
3498 List current working directory of the specified process."),
3499 &info_proc_cmdlist
);
3501 add_cmd ("cmdline", class_info
, info_proc_cmd_cmdline
, _("\
3502 List command line arguments of the specified process."),
3503 &info_proc_cmdlist
);
3505 add_cmd ("exe", class_info
, info_proc_cmd_exe
, _("\
3506 List absolute filename for executable of the specified process."),
3507 &info_proc_cmdlist
);
3509 add_cmd ("files", class_info
, info_proc_cmd_files
, _("\
3510 List files opened by the specified process."),
3511 &info_proc_cmdlist
);
3513 add_cmd ("all", class_info
, info_proc_cmd_all
, _("\
3514 List all available info about the specified process."),
3515 &info_proc_cmdlist
);