1 /* Memory-access and commands for "inferior" process, for GDB.
3 Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
4 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
5 2008 Free Software Foundation, Inc.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
24 #include "gdb_string.h"
38 #include "completer.h"
40 #include "event-top.h"
41 #include "parser-defs.h"
43 #include "reggroups.h"
47 #include "gdb_assert.h"
49 #include "target-descriptions.h"
50 #include "user-regs.h"
51 #include "exceptions.h"
52 #include "cli/cli-decode.h"
53 #include "gdbthread.h"
56 /* Functions exported for general use, in inferior.h: */
58 void all_registers_info (char *, int);
60 void registers_info (char *, int);
62 void nexti_command (char *, int);
64 void stepi_command (char *, int);
66 void continue_command (char *, int);
68 void interrupt_target_command (char *args
, int from_tty
);
70 /* Local functions: */
72 static void nofp_registers_info (char *, int);
74 static void print_return_value (struct type
*func_type
,
75 struct type
*value_type
);
77 static void until_next_command (int);
79 static void until_command (char *, int);
81 static void path_info (char *, int);
83 static void path_command (char *, int);
85 static void unset_command (char *, int);
87 static void float_info (char *, int);
89 static void detach_command (char *, int);
91 static void disconnect_command (char *, int);
93 static void unset_environment_command (char *, int);
95 static void set_environment_command (char *, int);
97 static void environment_info (char *, int);
99 static void program_info (char *, int);
101 static void finish_command (char *, int);
103 static void signal_command (char *, int);
105 static void jump_command (char *, int);
107 static void step_1 (int, int, char *);
108 static void step_once (int skip_subroutines
, int single_inst
, int count
, int thread
);
110 static void next_command (char *, int);
112 static void step_command (char *, int);
114 static void run_command (char *, int);
116 static void run_no_args_command (char *args
, int from_tty
);
118 static void go_command (char *line_no
, int from_tty
);
120 static int strip_bg_char (char **);
122 void _initialize_infcmd (void);
124 #define ERROR_NO_INFERIOR \
125 if (!target_has_execution) error (_("The program is not being run."));
127 /* String containing arguments to give to the program, separated by spaces.
128 Empty string (pointer to '\0') means no args. */
130 static char *inferior_args
;
132 /* The inferior arguments as a vector. If INFERIOR_ARGC is nonzero,
133 then we must compute INFERIOR_ARGS from this (via the target). */
135 static int inferior_argc
;
136 static char **inferior_argv
;
138 /* File name for default use for standard in/out in the inferior. */
140 static char *inferior_io_terminal
;
142 /* Pid of our debugged inferior, or 0 if no inferior now.
143 Since various parts of infrun.c test this to see whether there is a program
144 being debugged it should be nonzero (currently 3 is used) for remote
147 ptid_t inferior_ptid
;
149 /* Address at which inferior stopped. */
153 /* Flag indicating that a command has proceeded the inferior past the
154 current breakpoint. */
156 int breakpoint_proceeded
;
158 /* Nonzero if stopped due to completion of a stack dummy routine. */
160 int stop_stack_dummy
;
162 /* Nonzero if stopped due to a random (unexpected) signal in inferior
165 int stopped_by_random_signal
;
167 /* Environment to use for running inferior,
168 in format described in environ.h. */
170 struct gdb_environ
*inferior_environ
;
172 /* When set, no calls to target_resumed observer will be made. */
173 int suppress_resume_observer
= 0;
174 /* When set, normal_stop will not call the normal_stop observer. */
175 int suppress_stop_observer
= 0;
177 /* Accessor routines. */
180 set_inferior_io_terminal (const char *terminal_name
)
182 if (inferior_io_terminal
)
183 xfree (inferior_io_terminal
);
186 inferior_io_terminal
= NULL
;
188 inferior_io_terminal
= savestring (terminal_name
, strlen (terminal_name
));
192 get_inferior_io_terminal (void)
194 return inferior_io_terminal
;
198 get_inferior_args (void)
200 if (inferior_argc
!= 0)
204 n
= gdbarch_construct_inferior_arguments (current_gdbarch
,
205 inferior_argc
, inferior_argv
);
206 old
= set_inferior_args (n
);
210 if (inferior_args
== NULL
)
211 inferior_args
= xstrdup ("");
213 return inferior_args
;
217 set_inferior_args (char *newargs
)
219 char *saved_args
= inferior_args
;
221 inferior_args
= newargs
;
229 set_inferior_args_vector (int argc
, char **argv
)
231 inferior_argc
= argc
;
232 inferior_argv
= argv
;
235 /* Notice when `set args' is run. */
237 notice_args_set (char *args
, int from_tty
, struct cmd_list_element
*c
)
243 /* Notice when `show args' is run. */
245 notice_args_read (struct ui_file
*file
, int from_tty
,
246 struct cmd_list_element
*c
, const char *value
)
248 /* Note that we ignore the passed-in value in favor of computing it
250 deprecated_show_value_hack (file
, from_tty
, c
, get_inferior_args ());
254 /* Compute command-line string given argument vector. This does the
255 same shell processing as fork_inferior. */
257 construct_inferior_arguments (struct gdbarch
*gdbarch
, int argc
, char **argv
)
261 if (STARTUP_WITH_SHELL
)
263 /* This holds all the characters considered special to the
264 typical Unix shells. We include `^' because the SunOS
265 /bin/sh treats it as a synonym for `|'. */
266 char *special
= "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n";
271 /* We over-compute the size. It shouldn't matter. */
272 for (i
= 0; i
< argc
; ++i
)
273 length
+= 3 * strlen (argv
[i
]) + 1 + 2 * (argv
[i
][0] == '\0');
275 result
= (char *) xmalloc (length
);
278 for (i
= 0; i
< argc
; ++i
)
283 /* Need to handle empty arguments specially. */
284 if (argv
[i
][0] == '\0')
291 for (cp
= argv
[i
]; *cp
; ++cp
)
295 /* A newline cannot be quoted with a backslash (it
296 just disappears), only by putting it inside
304 if (strchr (special
, *cp
) != NULL
)
315 /* In this case we can't handle arguments that contain spaces,
316 tabs, or newlines -- see breakup_args(). */
320 for (i
= 0; i
< argc
; ++i
)
322 char *cp
= strchr (argv
[i
], ' ');
324 cp
= strchr (argv
[i
], '\t');
326 cp
= strchr (argv
[i
], '\n');
328 error (_("can't handle command-line argument containing whitespace"));
329 length
+= strlen (argv
[i
]) + 1;
332 result
= (char *) xmalloc (length
);
334 for (i
= 0; i
< argc
; ++i
)
337 strcat (result
, " ");
338 strcat (result
, argv
[i
]);
346 /* This function detects whether or not a '&' character (indicating
347 background execution) has been added as *the last* of the arguments ARGS
348 of a command. If it has, it removes it and returns 1. Otherwise it
349 does nothing and returns 0. */
351 strip_bg_char (char **args
)
355 p
= strchr (*args
, '&');
359 if (p
== (*args
+ strlen (*args
) - 1))
361 if (strlen (*args
) > 1)
365 while (*p
== ' ' || *p
== '\t');
377 tty_command (char *file
, int from_tty
)
380 error_no_arg (_("terminal name for running target process"));
382 set_inferior_io_terminal (file
);
385 /* Common actions to take after creating any sort of inferior, by any
386 means (running, attaching, connecting, et cetera). The target
387 should be stopped. */
390 post_create_inferior (struct target_ops
*target
, int from_tty
)
392 /* Be sure we own the terminal in case write operations are performed. */
393 target_terminal_ours ();
395 /* If the target hasn't taken care of this already, do it now.
396 Targets which need to access registers during to_open,
397 to_create_inferior, or to_attach should do it earlier; but many
399 target_find_description ();
401 /* If the solist is global across processes, there's no need to
403 if (exec_bfd
&& !gdbarch_has_global_solist (target_gdbarch
))
405 /* Sometimes the platform-specific hook loads initial shared
406 libraries, and sometimes it doesn't. Try to do so first, so
407 that we can add them with the correct value for FROM_TTY.
408 If we made all the inferior hook methods consistent,
409 this call could be removed. */
411 SOLIB_ADD (NULL
, from_tty
, target
, auto_solib_add
);
413 solib_add (NULL
, from_tty
, target
, auto_solib_add
);
419 /* Create the hooks to handle shared library load and unload
421 #ifdef SOLIB_CREATE_INFERIOR_HOOK
422 SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid
));
424 solib_create_inferior_hook ();
428 observer_notify_inferior_created (target
, from_tty
);
431 /* Kill the inferior if already running. This function is designed
432 to be called when we are about to start the execution of the program
433 from the beginning. Ask the user to confirm that he wants to restart
434 the program being debugged when FROM_TTY is non-null. */
437 kill_if_already_running (int from_tty
)
439 if (! ptid_equal (inferior_ptid
, null_ptid
) && target_has_execution
)
441 /* Bail out before killing the program if we will not be able to
443 target_require_runnable ();
446 && !query ("The program being debugged has been started already.\n\
447 Start it from the beginning? "))
448 error (_("Program not restarted."));
453 /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert
454 a temporary breakpoint at the begining of the main program before
455 running the program. */
458 run_command_1 (char *args
, int from_tty
, int tbreak_at_main
)
464 kill_if_already_running (from_tty
);
466 init_wait_for_inferior ();
467 clear_breakpoint_hit_counts ();
469 /* Clean up any leftovers from other runs. Some other things from
470 this function should probably be moved into target_pre_inferior. */
471 target_pre_inferior (from_tty
);
473 /* The comment here used to read, "The exec file is re-read every
474 time we do a generic_mourn_inferior, so we just have to worry
475 about the symbol file." The `generic_mourn_inferior' function
476 gets called whenever the program exits. However, suppose the
477 program exits, and *then* the executable file changes? We need
478 to check again here. Since reopen_exec_file doesn't do anything
479 if the timestamp hasn't changed, I don't see the harm. */
483 /* Insert the temporary breakpoint if a location was specified. */
485 tbreak_command (main_name (), 0);
487 exec_file
= (char *) get_exec_file (0);
489 if (non_stop
&& !target_supports_non_stop ())
490 error (_("The target does not support running in non-stop mode."));
492 /* We keep symbols from add-symbol-file, on the grounds that the
493 user might want to add some symbols before running the program
494 (right?). But sometimes (dynamic loading where the user manually
495 introduces the new symbols with add-symbol-file), the code which
496 the symbols describe does not persist between runs. Currently
497 the user has to manually nuke all symbols between runs if they
498 want them to go away (PR 2207). This is probably reasonable. */
502 if (target_can_async_p ())
503 async_disable_stdin ();
507 int async_exec
= strip_bg_char (&args
);
509 /* If we get a request for running in the bg but the target
510 doesn't support it, error out. */
511 if (async_exec
&& !target_can_async_p ())
512 error (_("Asynchronous execution not supported on this target."));
514 /* If we don't get a request of running in the bg, then we need
515 to simulate synchronous (fg) execution. */
516 if (!async_exec
&& target_can_async_p ())
518 /* Simulate synchronous execution */
519 async_disable_stdin ();
522 /* If there were other args, beside '&', process them. */
525 char *old_args
= set_inferior_args (xstrdup (args
));
532 ui_out_field_string (uiout
, NULL
, "Starting program");
533 ui_out_text (uiout
, ": ");
535 ui_out_field_string (uiout
, "execfile", exec_file
);
536 ui_out_spaces (uiout
, 1);
537 /* We call get_inferior_args() because we might need to compute
539 ui_out_field_string (uiout
, "infargs", get_inferior_args ());
540 ui_out_text (uiout
, "\n");
541 ui_out_flush (uiout
);
544 /* We call get_inferior_args() because we might need to compute
546 target_create_inferior (exec_file
, get_inferior_args (),
547 environ_vector (inferior_environ
), from_tty
);
549 /* Pass zero for FROM_TTY, because at this point the "run" command
550 has done its thing; now we are setting up the running program. */
551 post_create_inferior (¤t_target
, 0);
553 /* Start the target running. */
554 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_0
, 0);
559 run_command (char *args
, int from_tty
)
561 run_command_1 (args
, from_tty
, 0);
565 run_no_args_command (char *args
, int from_tty
)
567 char *old_args
= set_inferior_args (xstrdup (""));
572 /* Start the execution of the program up until the beginning of the main
576 start_command (char *args
, int from_tty
)
578 /* Some languages such as Ada need to search inside the program
579 minimal symbols for the location where to put the temporary
580 breakpoint before starting. */
581 if (!have_minimal_symbols ())
582 error (_("No symbol table loaded. Use the \"file\" command."));
584 /* Run the program until reaching the main procedure... */
585 run_command_1 (args
, from_tty
, 1);
589 proceed_thread_callback (struct thread_info
*thread
, void *arg
)
591 /* We go through all threads individually instead of compressing
592 into a single target `resume_all' request, because some threads
593 may be stopped in internal breakpoints/events, or stopped waiting
594 for its turn in the displaced stepping queue (that is, they are
595 running && !executing). The target side has no idea about why
596 the thread is stopped, so a `resume_all' command would resume too
597 much. If/when GDB gains a way to tell the target `hold this
598 thread stopped until I say otherwise', then we can optimize
600 if (!is_stopped (thread
->ptid
))
603 switch_to_thread (thread
->ptid
);
604 clear_proceed_status ();
605 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
610 continue_1 (int all_threads
)
614 if (non_stop
&& all_threads
)
616 /* Don't error out if the current thread is running, because
617 there may be other stopped threads. */
618 struct cleanup
*old_chain
;
620 /* Backup current thread and selected frame. */
621 old_chain
= make_cleanup_restore_current_thread ();
623 iterate_over_threads (proceed_thread_callback
, NULL
);
625 /* Restore selected ptid. */
626 do_cleanups (old_chain
);
630 ensure_not_running ();
631 clear_proceed_status ();
632 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
636 /* continue [-a] [proceed-count] [&] */
638 continue_command (char *args
, int from_tty
)
644 /* Find out whether we must run in the background. */
646 async_exec
= strip_bg_char (&args
);
648 /* If we must run in the background, but the target can't do it,
650 if (async_exec
&& !target_can_async_p ())
651 error (_("Asynchronous execution not supported on this target."));
653 /* If we are not asked to run in the bg, then prepare to run in the
654 foreground, synchronously. */
655 if (!async_exec
&& target_can_async_p ())
657 /* Simulate synchronous execution */
658 async_disable_stdin ();
663 if (strncmp (args
, "-a", sizeof ("-a") - 1) == 0)
666 args
+= sizeof ("-a") - 1;
672 if (!non_stop
&& all_threads
)
673 error (_("`-a' is meaningless in all-stop mode."));
675 if (args
!= NULL
&& all_threads
)
677 Can't resume all threads and specify proceed count simultaneously."));
679 /* If we have an argument left, set proceed count of breakpoint we
686 struct thread_info
*tp
;
689 tp
= find_thread_pid (inferior_ptid
);
693 struct target_waitstatus ws
;
695 get_last_target_status (&last_ptid
, &ws
);
696 tp
= find_thread_pid (last_ptid
);
699 bs
= tp
->stop_bpstat
;
701 while ((stat
= bpstat_num (&bs
, &num
)) != 0)
704 set_ignore_count (num
,
705 parse_and_eval_long (args
) - 1,
707 /* set_ignore_count prints a message ending with a period.
708 So print two spaces before "Continuing.". */
710 printf_filtered (" ");
714 if (!stopped
&& from_tty
)
717 ("Not stopped at any breakpoint; argument ignored.\n");
722 printf_filtered (_("Continuing.\n"));
724 continue_1 (all_threads
);
727 /* Step until outside of current statement. */
730 step_command (char *count_string
, int from_tty
)
732 step_1 (0, 0, count_string
);
735 /* Likewise, but skip over subroutine calls as if single instructions. */
738 next_command (char *count_string
, int from_tty
)
740 step_1 (1, 0, count_string
);
743 /* Likewise, but step only one instruction. */
746 stepi_command (char *count_string
, int from_tty
)
748 step_1 (0, 1, count_string
);
752 nexti_command (char *count_string
, int from_tty
)
754 step_1 (1, 1, count_string
);
758 delete_longjmp_breakpoint_cleanup (void *arg
)
760 int thread
= * (int *) arg
;
761 delete_longjmp_breakpoint (thread
);
765 step_1 (int skip_subroutines
, int single_inst
, char *count_string
)
768 struct frame_info
*frame
;
769 struct cleanup
*cleanups
= make_cleanup (null_cleanup
, NULL
);
774 ensure_not_running ();
777 async_exec
= strip_bg_char (&count_string
);
779 /* If we get a request for running in the bg but the target
780 doesn't support it, error out. */
781 if (async_exec
&& !target_can_async_p ())
782 error (_("Asynchronous execution not supported on this target."));
784 /* If we don't get a request of running in the bg, then we need
785 to simulate synchronous (fg) execution. */
786 if (!async_exec
&& target_can_async_p ())
788 /* Simulate synchronous execution */
789 async_disable_stdin ();
792 count
= count_string
? parse_and_eval_long (count_string
) : 1;
794 if (!single_inst
|| skip_subroutines
) /* leave si command alone */
796 if (in_thread_list (inferior_ptid
))
797 thread
= pid_to_thread_id (inferior_ptid
);
799 set_longjmp_breakpoint ();
801 make_cleanup (delete_longjmp_breakpoint_cleanup
, &thread
);
804 /* In synchronous case, all is well, just use the regular for loop. */
805 if (!target_can_async_p ())
807 for (; count
> 0; count
--)
809 struct thread_info
*tp
= inferior_thread ();
810 clear_proceed_status ();
812 frame
= get_current_frame ();
813 tp
->step_frame_id
= get_frame_id (frame
);
817 find_pc_line_pc_range (stop_pc
,
818 &tp
->step_range_start
, &tp
->step_range_end
);
819 if (tp
->step_range_end
== 0)
822 if (find_pc_partial_function (stop_pc
, &name
,
823 &tp
->step_range_start
,
824 &tp
->step_range_end
) == 0)
825 error (_("Cannot find bounds of current function"));
827 target_terminal_ours ();
828 printf_filtered (_("\
829 Single stepping until exit from function %s, \n\
830 which has no line number information.\n"), name
);
835 /* Say we are stepping, but stop after one insn whatever it does. */
836 tp
->step_range_start
= tp
->step_range_end
= 1;
837 if (!skip_subroutines
)
839 Don't step over function calls, not even to functions lacking
841 tp
->step_over_calls
= STEP_OVER_NONE
;
844 if (skip_subroutines
)
845 tp
->step_over_calls
= STEP_OVER_ALL
;
847 tp
->step_multi
= (count
> 1);
848 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
850 if (!target_has_execution
851 || !inferior_thread ()->stop_step
)
855 do_cleanups (cleanups
);
858 /* In case of asynchronous target things get complicated, do only
859 one step for now, before returning control to the event loop. Let
860 the continuation figure out how many other steps we need to do,
861 and handle them one at the time, through step_once(). */
864 step_once (skip_subroutines
, single_inst
, count
, thread
);
865 /* We are running, and the continuation is installed. It will
866 disable the longjmp breakpoint as appropriate. */
867 discard_cleanups (cleanups
);
871 struct step_1_continuation_args
874 int skip_subroutines
;
879 /* Called after we are done with one step operation, to check whether
880 we need to step again, before we print the prompt and return control
881 to the user. If count is > 1, we will need to do one more call to
882 proceed(), via step_once(). Basically it is like step_once and
883 step_1_continuation are co-recursive. */
885 step_1_continuation (void *args
)
887 struct step_1_continuation_args
*a
= args
;
889 if (target_has_execution
)
891 struct thread_info
*tp
;
893 tp
= inferior_thread ();
894 if (tp
->step_multi
&& tp
->stop_step
)
896 /* There are more steps to make, and we did stop due to
897 ending a stepping range. Do another step. */
898 step_once (a
->skip_subroutines
, a
->single_inst
, a
->count
- 1, a
->thread
);
904 /* We either stopped for some reason that is not stepping, or there
905 are no further steps to make. Cleanup. */
906 if (!a
->single_inst
|| a
->skip_subroutines
)
907 delete_longjmp_breakpoint (a
->thread
);
910 /* Do just one step operation. If count >1 we will have to set up a
911 continuation to be done after the target stops (after this one
912 step). This is useful to implement the 'step n' kind of commands, in
913 case of asynchronous targets. We had to split step_1 into two parts,
914 one to be done before proceed() and one afterwards. This function is
915 called in case of step n with n>1, after the first step operation has
918 step_once (int skip_subroutines
, int single_inst
, int count
, int thread
)
920 struct frame_info
*frame
;
921 struct step_1_continuation_args
*args
;
925 /* Don't assume THREAD is a valid thread id. It is set to -1 if
926 the longjmp breakpoint was not required. Use the
927 INFERIOR_PTID thread instead, which is the same thread when
929 struct thread_info
*tp
= inferior_thread ();
930 clear_proceed_status ();
932 frame
= get_current_frame ();
933 if (!frame
) /* Avoid coredump here. Why tho? */
934 error (_("No current frame"));
935 tp
->step_frame_id
= get_frame_id (frame
);
939 find_pc_line_pc_range (stop_pc
,
940 &tp
->step_range_start
, &tp
->step_range_end
);
942 /* If we have no line info, switch to stepi mode. */
943 if (tp
->step_range_end
== 0 && step_stop_if_no_debug
)
945 tp
->step_range_start
= tp
->step_range_end
= 1;
947 else if (tp
->step_range_end
== 0)
950 if (find_pc_partial_function (stop_pc
, &name
,
951 &tp
->step_range_start
,
952 &tp
->step_range_end
) == 0)
953 error (_("Cannot find bounds of current function"));
955 target_terminal_ours ();
956 printf_filtered (_("\
957 Single stepping until exit from function %s, \n\
958 which has no line number information.\n"), name
);
963 /* Say we are stepping, but stop after one insn whatever it does. */
964 tp
->step_range_start
= tp
->step_range_end
= 1;
965 if (!skip_subroutines
)
967 Don't step over function calls, not even to functions lacking
969 tp
->step_over_calls
= STEP_OVER_NONE
;
972 if (skip_subroutines
)
973 tp
->step_over_calls
= STEP_OVER_ALL
;
975 tp
->step_multi
= (count
> 1);
976 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
978 args
= xmalloc (sizeof (*args
));
979 args
->skip_subroutines
= skip_subroutines
;
980 args
->single_inst
= single_inst
;
982 args
->thread
= thread
;
983 add_intermediate_continuation (tp
, step_1_continuation
, args
, xfree
);
988 /* Continue program at specified address. */
991 jump_command (char *arg
, int from_tty
)
994 struct symtabs_and_lines sals
;
995 struct symtab_and_line sal
;
1001 ensure_not_running ();
1003 /* Find out whether we must run in the background. */
1005 async_exec
= strip_bg_char (&arg
);
1007 /* If we must run in the background, but the target can't do it,
1009 if (async_exec
&& !target_can_async_p ())
1010 error (_("Asynchronous execution not supported on this target."));
1013 error_no_arg (_("starting address"));
1015 sals
= decode_line_spec_1 (arg
, 1);
1016 if (sals
.nelts
!= 1)
1018 error (_("Unreasonable jump request"));
1024 if (sal
.symtab
== 0 && sal
.pc
== 0)
1025 error (_("No source file has been specified."));
1027 resolve_sal_pc (&sal
); /* May error out */
1029 /* See if we are trying to jump to another function. */
1030 fn
= get_frame_function (get_current_frame ());
1031 sfn
= find_pc_function (sal
.pc
);
1032 if (fn
!= NULL
&& sfn
!= fn
)
1034 if (!query ("Line %d is not in `%s'. Jump anyway? ", sal
.line
,
1035 SYMBOL_PRINT_NAME (fn
)))
1037 error (_("Not confirmed."));
1044 fixup_symbol_section (sfn
, 0);
1045 if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn
)) &&
1046 !section_is_mapped (SYMBOL_OBJ_SECTION (sfn
)))
1048 if (!query ("WARNING!!! Destination is in unmapped overlay! Jump anyway? "))
1050 error (_("Not confirmed."));
1060 printf_filtered (_("Continuing at "));
1061 fputs_filtered (paddress (addr
), gdb_stdout
);
1062 printf_filtered (".\n");
1065 /* If we are not asked to run in the bg, then prepare to run in the
1066 foreground, synchronously. */
1067 if (!async_exec
&& target_can_async_p ())
1069 /* Simulate synchronous execution */
1070 async_disable_stdin ();
1073 clear_proceed_status ();
1074 proceed (addr
, TARGET_SIGNAL_0
, 0);
1078 /* Go to line or address in current procedure */
1080 go_command (char *line_no
, int from_tty
)
1082 if (line_no
== (char *) NULL
|| !*line_no
)
1083 printf_filtered (_("Usage: go <location>\n"));
1086 tbreak_command (line_no
, from_tty
);
1087 jump_command (line_no
, from_tty
);
1092 /* Continue program giving it specified signal. */
1095 signal_command (char *signum_exp
, int from_tty
)
1097 enum target_signal oursig
;
1100 dont_repeat (); /* Too dangerous. */
1102 ensure_not_running ();
1104 /* Find out whether we must run in the background. */
1105 if (signum_exp
!= NULL
)
1106 async_exec
= strip_bg_char (&signum_exp
);
1108 /* If we must run in the background, but the target can't do it,
1110 if (async_exec
&& !target_can_async_p ())
1111 error (_("Asynchronous execution not supported on this target."));
1113 /* If we are not asked to run in the bg, then prepare to run in the
1114 foreground, synchronously. */
1115 if (!async_exec
&& target_can_async_p ())
1117 /* Simulate synchronous execution. */
1118 async_disable_stdin ();
1122 error_no_arg (_("signal number"));
1124 /* It would be even slicker to make signal names be valid expressions,
1125 (the type could be "enum $signal" or some such), then the user could
1126 assign them to convenience variables. */
1127 oursig
= target_signal_from_name (signum_exp
);
1129 if (oursig
== TARGET_SIGNAL_UNKNOWN
)
1131 /* No, try numeric. */
1132 int num
= parse_and_eval_long (signum_exp
);
1135 oursig
= TARGET_SIGNAL_0
;
1137 oursig
= target_signal_from_command (num
);
1142 if (oursig
== TARGET_SIGNAL_0
)
1143 printf_filtered (_("Continuing with no signal.\n"));
1145 printf_filtered (_("Continuing with signal %s.\n"),
1146 target_signal_to_name (oursig
));
1149 clear_proceed_status ();
1150 /* "signal 0" should not get stuck if we are stopped at a breakpoint.
1151 FIXME: Neither should "signal foo" but when I tried passing
1152 (CORE_ADDR)-1 unconditionally I got a testsuite failure which I haven't
1153 tried to track down yet. */
1154 proceed (oursig
== TARGET_SIGNAL_0
? (CORE_ADDR
) -1 : stop_pc
, oursig
, 0);
1157 /* Proceed until we reach a different source line with pc greater than
1158 our current one or exit the function. We skip calls in both cases.
1160 Note that eventually this command should probably be changed so
1161 that only source lines are printed out when we hit the breakpoint
1162 we set. This may involve changes to wait_for_inferior and the
1163 proceed status code. */
1166 until_next_command (int from_tty
)
1168 struct frame_info
*frame
;
1170 struct symbol
*func
;
1171 struct symtab_and_line sal
;
1172 struct thread_info
*tp
= inferior_thread ();
1174 clear_proceed_status ();
1176 frame
= get_current_frame ();
1178 /* Step until either exited from this function or greater
1179 than the current line (if in symbolic section) or pc (if
1183 func
= find_pc_function (pc
);
1187 struct minimal_symbol
*msymbol
= lookup_minimal_symbol_by_pc (pc
);
1189 if (msymbol
== NULL
)
1190 error (_("Execution is not within a known function."));
1192 tp
->step_range_start
= SYMBOL_VALUE_ADDRESS (msymbol
);
1193 tp
->step_range_end
= pc
;
1197 sal
= find_pc_line (pc
, 0);
1199 tp
->step_range_start
= BLOCK_START (SYMBOL_BLOCK_VALUE (func
));
1200 tp
->step_range_end
= sal
.end
;
1203 tp
->step_over_calls
= STEP_OVER_ALL
;
1204 tp
->step_frame_id
= get_frame_id (frame
);
1206 tp
->step_multi
= 0; /* Only one call to proceed */
1208 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
1212 until_command (char *arg
, int from_tty
)
1216 if (!target_has_execution
)
1217 error (_("The program is not running."));
1219 /* Find out whether we must run in the background. */
1221 async_exec
= strip_bg_char (&arg
);
1223 /* If we must run in the background, but the target can't do it,
1225 if (async_exec
&& !target_can_async_p ())
1226 error (_("Asynchronous execution not supported on this target."));
1228 /* If we are not asked to run in the bg, then prepare to run in the
1229 foreground, synchronously. */
1230 if (!async_exec
&& target_can_async_p ())
1232 /* Simulate synchronous execution */
1233 async_disable_stdin ();
1237 until_break_command (arg
, from_tty
, 0);
1239 until_next_command (from_tty
);
1243 advance_command (char *arg
, int from_tty
)
1247 if (!target_has_execution
)
1248 error (_("The program is not running."));
1251 error_no_arg (_("a location"));
1253 /* Find out whether we must run in the background. */
1255 async_exec
= strip_bg_char (&arg
);
1257 /* If we must run in the background, but the target can't do it,
1259 if (async_exec
&& !target_can_async_p ())
1260 error (_("Asynchronous execution not supported on this target."));
1262 /* If we are not asked to run in the bg, then prepare to run in the
1263 foreground, synchronously. */
1264 if (!async_exec
&& target_can_async_p ())
1266 /* Simulate synchronous execution. */
1267 async_disable_stdin ();
1270 until_break_command (arg
, from_tty
, 1);
1273 /* Print the result of a function at the end of a 'finish' command. */
1276 print_return_value (struct type
*func_type
, struct type
*value_type
)
1278 struct gdbarch
*gdbarch
= current_gdbarch
;
1279 struct cleanup
*old_chain
;
1280 struct ui_stream
*stb
;
1281 struct value
*value
;
1283 CHECK_TYPEDEF (value_type
);
1284 gdb_assert (TYPE_CODE (value_type
) != TYPE_CODE_VOID
);
1286 /* FIXME: 2003-09-27: When returning from a nested inferior function
1287 call, it's possible (with no help from the architecture vector)
1288 to locate and return/print a "struct return" value. This is just
1289 a more complicated case of what is already being done in in the
1290 inferior function call code. In fact, when inferior function
1291 calls are made async, this will likely be made the norm. */
1293 switch (gdbarch_return_value (gdbarch
, func_type
, value_type
,
1296 case RETURN_VALUE_REGISTER_CONVENTION
:
1297 case RETURN_VALUE_ABI_RETURNS_ADDRESS
:
1298 case RETURN_VALUE_ABI_PRESERVES_ADDRESS
:
1299 value
= allocate_value (value_type
);
1300 gdbarch_return_value (gdbarch
, func_type
, value_type
, stop_registers
,
1301 value_contents_raw (value
), NULL
);
1303 case RETURN_VALUE_STRUCT_CONVENTION
:
1307 internal_error (__FILE__
, __LINE__
, _("bad switch"));
1312 struct value_print_options opts
;
1315 stb
= ui_out_stream_new (uiout
);
1316 old_chain
= make_cleanup_ui_out_stream_delete (stb
);
1317 ui_out_text (uiout
, "Value returned is ");
1318 ui_out_field_fmt (uiout
, "gdb-result-var", "$%d",
1319 record_latest_value (value
));
1320 ui_out_text (uiout
, " = ");
1321 get_raw_print_options (&opts
);
1322 value_print (value
, stb
->stream
, &opts
);
1323 ui_out_field_stream (uiout
, "return-value", stb
);
1324 ui_out_text (uiout
, "\n");
1325 do_cleanups (old_chain
);
1329 ui_out_text (uiout
, "Value returned has type: ");
1330 ui_out_field_string (uiout
, "return-type", TYPE_NAME (value_type
));
1331 ui_out_text (uiout
, ".");
1332 ui_out_text (uiout
, " Cannot determine contents\n");
1336 /* Stuff that needs to be done by the finish command after the target
1337 has stopped. In asynchronous mode, we wait for the target to stop
1338 in the call to poll or select in the event loop, so it is
1339 impossible to do all the stuff as part of the finish_command
1340 function itself. The only chance we have to complete this command
1341 is in fetch_inferior_event, which is called by the event loop as
1342 soon as it detects that the target has stopped. This function is
1343 called via the cmd_continuation pointer. */
1345 struct finish_command_continuation_args
1347 struct breakpoint
*breakpoint
;
1348 struct symbol
*function
;
1352 finish_command_continuation (void *arg
)
1354 struct finish_command_continuation_args
*a
= arg
;
1358 if (!ptid_equal (inferior_ptid
, null_ptid
)
1359 && target_has_execution
1360 && is_stopped (inferior_ptid
))
1361 bs
= inferior_thread ()->stop_bpstat
;
1363 if (bpstat_find_breakpoint (bs
, a
->breakpoint
) != NULL
1364 && a
->function
!= NULL
)
1366 struct type
*value_type
;
1368 value_type
= TYPE_TARGET_TYPE (SYMBOL_TYPE (a
->function
));
1370 internal_error (__FILE__
, __LINE__
,
1371 _("finish_command: function has no target type"));
1373 if (TYPE_CODE (value_type
) != TYPE_CODE_VOID
)
1374 print_return_value (SYMBOL_TYPE (a
->function
), value_type
);
1377 /* We suppress normal call of normal_stop observer and do it here so
1378 that that *stopped notification includes the return value. */
1379 /* NOTE: This is broken in non-stop mode. There is no guarantee the
1380 next stop will be in the same thread that we started doing a
1381 finish on. This suppressing (or some other replacement means)
1382 should be a thread property. */
1383 observer_notify_normal_stop (bs
);
1384 suppress_stop_observer
= 0;
1385 delete_breakpoint (a
->breakpoint
);
1389 finish_command_continuation_free_arg (void *arg
)
1391 /* NOTE: See finish_command_continuation. This would go away, if
1392 this suppressing is made a thread property. */
1393 suppress_stop_observer
= 0;
1397 /* finish_backward -- helper function for finish_command. */
1400 finish_backward (struct symbol
*function
)
1402 struct symtab_and_line sal
;
1403 struct thread_info
*tp
= inferior_thread ();
1404 struct breakpoint
*breakpoint
;
1405 struct cleanup
*old_chain
;
1406 CORE_ADDR func_addr
;
1409 if (find_pc_partial_function (get_frame_pc (get_current_frame ()),
1410 NULL
, &func_addr
, NULL
) == 0)
1411 internal_error (__FILE__
, __LINE__
,
1412 _("Finish: couldn't find function."));
1414 sal
= find_pc_line (func_addr
, 0);
1416 /* We don't need a return value. */
1417 tp
->proceed_to_finish
= 0;
1418 /* Special case: if we're sitting at the function entry point,
1419 then all we need to do is take a reverse singlestep. We
1420 don't need to set a breakpoint, and indeed it would do us
1423 Note that this can only happen at frame #0, since there's
1424 no way that a function up the stack can have a return address
1425 that's equal to its entry point. */
1427 if (sal
.pc
!= read_pc ())
1429 /* Set breakpoint and continue. */
1431 set_momentary_breakpoint (sal
,
1432 get_frame_id (get_selected_frame (NULL
)),
1434 /* Tell the breakpoint to keep quiet. We won't be done
1435 until we've done another reverse single-step. */
1436 make_breakpoint_silent (breakpoint
);
1437 old_chain
= make_cleanup_delete_breakpoint (breakpoint
);
1438 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
1439 /* We will be stopped when proceed returns. */
1440 back_up
= bpstat_find_breakpoint (tp
->stop_bpstat
, breakpoint
) != NULL
;
1441 do_cleanups (old_chain
);
1447 /* If in fact we hit the step-resume breakpoint (and not
1448 some other breakpoint), then we're almost there --
1449 we just need to back up by one more single-step. */
1450 tp
->step_range_start
= tp
->step_range_end
= 1;
1451 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
1456 /* finish_forward -- helper function for finish_command. */
1459 finish_forward (struct symbol
*function
, struct frame_info
*frame
)
1461 struct symtab_and_line sal
;
1462 struct thread_info
*tp
= inferior_thread ();
1463 struct breakpoint
*breakpoint
;
1464 struct cleanup
*old_chain
;
1465 struct finish_command_continuation_args
*cargs
;
1467 sal
= find_pc_line (get_frame_pc (frame
), 0);
1468 sal
.pc
= get_frame_pc (frame
);
1470 breakpoint
= set_momentary_breakpoint (sal
, get_frame_id (frame
),
1473 old_chain
= make_cleanup_delete_breakpoint (breakpoint
);
1475 tp
->proceed_to_finish
= 1; /* We want stop_registers, please... */
1476 make_cleanup_restore_integer (&suppress_stop_observer
);
1477 suppress_stop_observer
= 1;
1478 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
1480 cargs
= xmalloc (sizeof (*cargs
));
1482 cargs
->breakpoint
= breakpoint
;
1483 cargs
->function
= function
;
1484 add_continuation (tp
, finish_command_continuation
, cargs
,
1485 finish_command_continuation_free_arg
);
1487 discard_cleanups (old_chain
);
1488 if (!target_can_async_p ())
1489 do_all_continuations ();
1492 /* "finish": Set a temporary breakpoint at the place the selected
1493 frame will return to, then continue. */
1496 finish_command (char *arg
, int from_tty
)
1498 struct frame_info
*frame
;
1499 struct symbol
*function
;
1503 /* Find out whether we must run in the background. */
1505 async_exec
= strip_bg_char (&arg
);
1507 /* If we must run in the background, but the target can't do it,
1509 if (async_exec
&& !target_can_async_p ())
1510 error (_("Asynchronous execution not supported on this target."));
1512 /* Don't try to async in reverse. */
1513 if (async_exec
&& execution_direction
== EXEC_REVERSE
)
1514 error (_("Asynchronous 'finish' not supported in reverse."));
1516 /* If we are not asked to run in the bg, then prepare to run in the
1517 foreground, synchronously. */
1518 if (!async_exec
&& target_can_async_p ())
1520 /* Simulate synchronous execution. */
1521 async_disable_stdin ();
1525 error (_("The \"finish\" command does not take any arguments."));
1526 if (!target_has_execution
)
1527 error (_("The program is not running."));
1529 frame
= get_prev_frame (get_selected_frame (_("No selected frame.")));
1531 error (_("\"finish\" not meaningful in the outermost frame."));
1533 clear_proceed_status ();
1535 /* Find the function we will return from. */
1537 function
= find_pc_function (get_frame_pc (get_selected_frame (NULL
)));
1539 /* Print info on the selected frame, including level number but not
1543 if (execution_direction
== EXEC_REVERSE
)
1544 printf_filtered (_("Run back to call of "));
1546 printf_filtered (_("Run till exit from "));
1548 print_stack_frame (get_selected_frame (NULL
), 1, LOCATION
);
1551 if (execution_direction
== EXEC_REVERSE
)
1552 finish_backward (function
);
1554 finish_forward (function
, frame
);
1559 program_info (char *args
, int from_tty
)
1563 struct thread_info
*tp
;
1566 if (!target_has_execution
)
1568 printf_filtered (_("The program being debugged is not being run.\n"));
1573 ptid
= inferior_ptid
;
1576 struct target_waitstatus ws
;
1577 get_last_target_status (&ptid
, &ws
);
1580 if (ptid_equal (ptid
, null_ptid
) || is_exited (ptid
))
1581 error (_("Invalid selected thread."));
1582 else if (is_running (ptid
))
1583 error (_("Selected thread is running."));
1585 tp
= find_thread_pid (ptid
);
1586 bs
= tp
->stop_bpstat
;
1587 stat
= bpstat_num (&bs
, &num
);
1589 target_files_info ();
1590 printf_filtered (_("Program stopped at %s.\n"),
1591 hex_string ((unsigned long) stop_pc
));
1593 printf_filtered (_("It stopped after being stepped.\n"));
1596 /* There may be several breakpoints in the same place, so this
1597 isn't as strange as it seems. */
1602 printf_filtered (_("\
1603 It stopped at a breakpoint that has since been deleted.\n"));
1606 printf_filtered (_("It stopped at breakpoint %d.\n"), num
);
1607 stat
= bpstat_num (&bs
, &num
);
1610 else if (tp
->stop_signal
!= TARGET_SIGNAL_0
)
1612 printf_filtered (_("It stopped with signal %s, %s.\n"),
1613 target_signal_to_name (tp
->stop_signal
),
1614 target_signal_to_string (tp
->stop_signal
));
1619 printf_filtered (_("\
1620 Type \"info stack\" or \"info registers\" for more information.\n"));
1625 environment_info (char *var
, int from_tty
)
1629 char *val
= get_in_environ (inferior_environ
, var
);
1632 puts_filtered (var
);
1633 puts_filtered (" = ");
1634 puts_filtered (val
);
1635 puts_filtered ("\n");
1639 puts_filtered ("Environment variable \"");
1640 puts_filtered (var
);
1641 puts_filtered ("\" not defined.\n");
1646 char **vector
= environ_vector (inferior_environ
);
1649 puts_filtered (*vector
++);
1650 puts_filtered ("\n");
1656 set_environment_command (char *arg
, int from_tty
)
1658 char *p
, *val
, *var
;
1662 error_no_arg (_("environment variable and value"));
1664 /* Find seperation between variable name and value */
1665 p
= (char *) strchr (arg
, '=');
1666 val
= (char *) strchr (arg
, ' ');
1668 if (p
!= 0 && val
!= 0)
1670 /* We have both a space and an equals. If the space is before the
1671 equals, walk forward over the spaces til we see a nonspace
1672 (possibly the equals). */
1677 /* Now if the = is after the char following the spaces,
1678 take the char following the spaces. */
1682 else if (val
!= 0 && p
== 0)
1686 error_no_arg (_("environment variable to set"));
1688 if (p
== 0 || p
[1] == 0)
1692 p
= arg
+ strlen (arg
); /* So that savestring below will work */
1696 /* Not setting variable value to null */
1698 while (*val
== ' ' || *val
== '\t')
1702 while (p
!= arg
&& (p
[-1] == ' ' || p
[-1] == '\t'))
1705 var
= savestring (arg
, p
- arg
);
1708 printf_filtered (_("\
1709 Setting environment variable \"%s\" to null value.\n"),
1711 set_in_environ (inferior_environ
, var
, "");
1714 set_in_environ (inferior_environ
, var
, val
);
1719 unset_environment_command (char *var
, int from_tty
)
1723 /* If there is no argument, delete all environment variables.
1724 Ask for confirmation if reading from the terminal. */
1725 if (!from_tty
|| query (_("Delete all environment variables? ")))
1727 free_environ (inferior_environ
);
1728 inferior_environ
= make_environ ();
1732 unset_in_environ (inferior_environ
, var
);
1735 /* Handle the execution path (PATH variable) */
1737 static const char path_var_name
[] = "PATH";
1740 path_info (char *args
, int from_tty
)
1742 puts_filtered ("Executable and object file path: ");
1743 puts_filtered (get_in_environ (inferior_environ
, path_var_name
));
1744 puts_filtered ("\n");
1747 /* Add zero or more directories to the front of the execution path. */
1750 path_command (char *dirname
, int from_tty
)
1755 env
= get_in_environ (inferior_environ
, path_var_name
);
1756 /* Can be null if path is not set */
1759 exec_path
= xstrdup (env
);
1760 mod_path (dirname
, &exec_path
);
1761 set_in_environ (inferior_environ
, path_var_name
, exec_path
);
1764 path_info ((char *) NULL
, from_tty
);
1768 /* Print out the machine register regnum. If regnum is -1, print all
1769 registers (print_all == 1) or all non-float and non-vector
1770 registers (print_all == 0).
1772 For most machines, having all_registers_info() print the
1773 register(s) one per line is good enough. If a different format is
1774 required, (eg, for MIPS or Pyramid 90x, which both have lots of
1775 regs), or there is an existing convention for showing all the
1776 registers, define the architecture method PRINT_REGISTERS_INFO to
1777 provide that format. */
1780 default_print_registers_info (struct gdbarch
*gdbarch
,
1781 struct ui_file
*file
,
1782 struct frame_info
*frame
,
1783 int regnum
, int print_all
)
1786 const int numregs
= gdbarch_num_regs (gdbarch
)
1787 + gdbarch_num_pseudo_regs (gdbarch
);
1788 gdb_byte buffer
[MAX_REGISTER_SIZE
];
1790 for (i
= 0; i
< numregs
; i
++)
1792 /* Decide between printing all regs, non-float / vector regs, or
1798 if (!gdbarch_register_reggroup_p (gdbarch
, i
, all_reggroup
))
1803 if (!gdbarch_register_reggroup_p (gdbarch
, i
, general_reggroup
))
1813 /* If the register name is empty, it is undefined for this
1814 processor, so don't display anything. */
1815 if (gdbarch_register_name (gdbarch
, i
) == NULL
1816 || *(gdbarch_register_name (gdbarch
, i
)) == '\0')
1819 fputs_filtered (gdbarch_register_name (gdbarch
, i
), file
);
1820 print_spaces_filtered (15 - strlen (gdbarch_register_name
1821 (gdbarch
, i
)), file
);
1823 /* Get the data in raw format. */
1824 if (! frame_register_read (frame
, i
, buffer
))
1826 fprintf_filtered (file
, "*value not available*\n");
1830 /* If virtual format is floating, print it that way, and in raw
1832 if (TYPE_CODE (register_type (gdbarch
, i
)) == TYPE_CODE_FLT
1833 || TYPE_CODE (register_type (gdbarch
, i
)) == TYPE_CODE_DECFLOAT
)
1836 struct value_print_options opts
;
1838 get_user_print_options (&opts
);
1840 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1841 file
, 0, &opts
, current_language
);
1843 fprintf_filtered (file
, "\t(raw 0x");
1844 for (j
= 0; j
< register_size (gdbarch
, i
); j
++)
1847 if (gdbarch_byte_order (gdbarch
) == BFD_ENDIAN_BIG
)
1850 idx
= register_size (gdbarch
, i
) - 1 - j
;
1851 fprintf_filtered (file
, "%02x", (unsigned char) buffer
[idx
]);
1853 fprintf_filtered (file
, ")");
1857 struct value_print_options opts
;
1859 /* Print the register in hex. */
1860 get_formatted_print_options (&opts
, 'x');
1862 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1865 /* If not a vector register, print it also according to its
1867 if (TYPE_VECTOR (register_type (gdbarch
, i
)) == 0)
1869 get_user_print_options (&opts
);
1871 fprintf_filtered (file
, "\t");
1872 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1873 file
, 0, &opts
, current_language
);
1877 fprintf_filtered (file
, "\n");
1882 registers_info (char *addr_exp
, int fpregs
)
1884 struct frame_info
*frame
;
1885 struct gdbarch
*gdbarch
;
1886 int regnum
, numregs
;
1889 if (!target_has_registers
)
1890 error (_("The program has no registers now."));
1891 frame
= get_selected_frame (NULL
);
1892 gdbarch
= get_frame_arch (frame
);
1896 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
1901 while (*addr_exp
!= '\0')
1906 /* Keep skipping leading white space. */
1907 if (isspace ((*addr_exp
)))
1913 /* Discard any leading ``$''. Check that there is something
1914 resembling a register following it. */
1915 if (addr_exp
[0] == '$')
1917 if (isspace ((*addr_exp
)) || (*addr_exp
) == '\0')
1918 error (_("Missing register name"));
1920 /* Find the start/end of this register name/num/group. */
1922 while ((*addr_exp
) != '\0' && !isspace ((*addr_exp
)))
1926 /* Figure out what we've found and display it. */
1928 /* A register name? */
1930 int regnum
= user_reg_map_name_to_regnum (gdbarch
, start
, end
- start
);
1933 /* User registers lie completely outside of the range of
1934 normal registers. Catch them early so that the target
1936 if (regnum
>= gdbarch_num_regs (gdbarch
)
1937 + gdbarch_num_pseudo_regs (gdbarch
))
1939 struct value_print_options opts
;
1940 struct value
*val
= value_of_user_reg (regnum
, frame
);
1942 printf_filtered ("%s: ", start
);
1943 get_formatted_print_options (&opts
, 'x');
1944 print_scalar_formatted (value_contents (val
),
1945 check_typedef (value_type (val
)),
1946 &opts
, 0, gdb_stdout
);
1947 printf_filtered ("\n");
1950 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
1951 frame
, regnum
, fpregs
);
1956 /* A register number? (how portable is this one?). */
1959 int regnum
= strtol (start
, &endptr
, 0);
1962 && regnum
< gdbarch_num_regs (gdbarch
)
1963 + gdbarch_num_pseudo_regs (gdbarch
))
1965 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
1966 frame
, regnum
, fpregs
);
1971 /* A register group? */
1973 struct reggroup
*group
;
1974 for (group
= reggroup_next (gdbarch
, NULL
);
1976 group
= reggroup_next (gdbarch
, group
))
1978 /* Don't bother with a length check. Should the user
1979 enter a short register group name, go with the first
1980 group that matches. */
1981 if (strncmp (start
, reggroup_name (group
), end
- start
) == 0)
1988 regnum
< gdbarch_num_regs (gdbarch
)
1989 + gdbarch_num_pseudo_regs (gdbarch
);
1992 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, group
))
1993 gdbarch_print_registers_info (gdbarch
,
2001 /* Nothing matched. */
2002 error (_("Invalid register `%.*s'"), (int) (end
- start
), start
);
2007 all_registers_info (char *addr_exp
, int from_tty
)
2009 registers_info (addr_exp
, 1);
2013 nofp_registers_info (char *addr_exp
, int from_tty
)
2015 registers_info (addr_exp
, 0);
2019 print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
,
2020 struct frame_info
*frame
, const char *args
)
2022 if (gdbarch_print_vector_info_p (gdbarch
))
2023 gdbarch_print_vector_info (gdbarch
, file
, frame
, args
);
2027 int printed_something
= 0;
2030 regnum
< gdbarch_num_regs (gdbarch
)
2031 + gdbarch_num_pseudo_regs (gdbarch
);
2034 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, vector_reggroup
))
2036 printed_something
= 1;
2037 gdbarch_print_registers_info (gdbarch
, file
, frame
, regnum
, 1);
2040 if (!printed_something
)
2041 fprintf_filtered (file
, "No vector information\n");
2046 vector_info (char *args
, int from_tty
)
2048 if (!target_has_registers
)
2049 error (_("The program has no registers now."));
2051 print_vector_info (current_gdbarch
, gdb_stdout
,
2052 get_selected_frame (NULL
), args
);
2056 /* Used in `attach&' command. ARG is a point to an integer
2057 representing a process id. Proceed threads of this process iff
2058 they stopped due to debugger request, and when they did, they
2059 reported a clean stop (TARGET_SIGNAL_0). Do not proceed threads
2060 that have been explicitly been told to stop. */
2063 proceed_after_attach_callback (struct thread_info
*thread
,
2066 int pid
= * (int *) arg
;
2068 if (ptid_get_pid (thread
->ptid
) == pid
2069 && !is_exited (thread
->ptid
)
2070 && !is_executing (thread
->ptid
)
2071 && !thread
->stop_requested
2072 && thread
->stop_signal
== TARGET_SIGNAL_0
)
2074 switch_to_thread (thread
->ptid
);
2075 clear_proceed_status ();
2076 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
2083 proceed_after_attach (int pid
)
2085 /* Don't error out if the current thread is running, because
2086 there may be other stopped threads. */
2087 struct cleanup
*old_chain
;
2089 /* Backup current thread and selected frame. */
2090 old_chain
= make_cleanup_restore_current_thread ();
2092 iterate_over_threads (proceed_after_attach_callback
, &pid
);
2094 /* Restore selected ptid. */
2095 do_cleanups (old_chain
);
2100 * Should save/restore the tty state since it might be that the
2101 * program to be debugged was started on this tty and it wants
2102 * the tty in some state other than what we want. If it's running
2103 * on another terminal or without a terminal, then saving and
2104 * restoring the tty state is a harmless no-op.
2105 * This only needs to be done if we are attaching to a process.
2110 takes a program started up outside of gdb and ``attaches'' to it.
2111 This stops it cold in its tracks and allows us to start debugging it.
2112 and wait for the trace-trap that results from attaching. */
2115 attach_command_post_wait (char *args
, int from_tty
, int async_exec
)
2118 char *full_exec_path
= NULL
;
2119 struct inferior
*inferior
;
2121 inferior
= current_inferior ();
2122 inferior
->stop_soon
= NO_STOP_QUIETLY
;
2124 /* If no exec file is yet known, try to determine it from the
2126 exec_file
= (char *) get_exec_file (0);
2129 exec_file
= target_pid_to_exec_file (PIDGET (inferior_ptid
));
2132 /* It's possible we don't have a full path, but rather just a
2133 filename. Some targets, such as HP-UX, don't provide the
2136 Attempt to qualify the filename against the source path.
2137 (If that fails, we'll just fall back on the original
2138 filename. Not much more we can do...)
2140 if (!source_full_path_of (exec_file
, &full_exec_path
))
2141 full_exec_path
= savestring (exec_file
, strlen (exec_file
));
2143 exec_file_attach (full_exec_path
, from_tty
);
2144 symbol_file_add_main (full_exec_path
, from_tty
);
2149 reopen_exec_file ();
2153 /* Take any necessary post-attaching actions for this platform. */
2154 target_post_attach (PIDGET (inferior_ptid
));
2156 post_create_inferior (¤t_target
, from_tty
);
2158 /* Install inferior's terminal modes. */
2159 target_terminal_inferior ();
2163 /* The user requested an `attach&', so be sure to leave threads
2164 that didn't get a signal running. */
2166 /* Immediatelly resume all suspended threads of this inferior,
2167 and this inferior only. This should have no effect on
2168 already running threads. If a thread has been stopped with a
2169 signal, leave it be. */
2171 proceed_after_attach (inferior
->pid
);
2174 if (inferior_thread ()->stop_signal
== TARGET_SIGNAL_0
)
2176 clear_proceed_status ();
2177 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
2183 /* The user requested a plain `attach', so be sure to leave
2184 the inferior stopped. */
2186 if (target_can_async_p ())
2187 async_enable_stdin ();
2189 /* At least the current thread is already stopped. */
2191 /* In all-stop, by definition, all threads have to be already
2192 stopped at this point. In non-stop, however, although the
2193 selected thread is stopped, others may still be executing.
2194 Be sure to explicitly stop all threads of the process. This
2195 should have no effect on already stopped threads. */
2197 target_stop (pid_to_ptid (inferior
->pid
));
2199 /* Tell the user/frontend where we're stopped. */
2201 if (deprecated_attach_hook
)
2202 deprecated_attach_hook ();
2206 struct attach_command_continuation_args
2214 attach_command_continuation (void *args
)
2216 struct attach_command_continuation_args
*a
= args
;
2217 attach_command_post_wait (a
->args
, a
->from_tty
, a
->async_exec
);
2221 attach_command_continuation_free_args (void *args
)
2223 struct attach_command_continuation_args
*a
= args
;
2229 attach_command (char *args
, int from_tty
)
2232 char *full_exec_path
= NULL
;
2234 struct cleanup
*back_to
= make_cleanup (null_cleanup
, NULL
);
2236 dont_repeat (); /* Not for the faint of heart */
2238 if (target_supports_multi_process ())
2239 /* Don't complain if we can be attached to multiple processes. */
2241 else if (target_has_execution
)
2243 if (query ("A program is being debugged already. Kill it? "))
2246 error (_("Not killed."));
2249 /* Clean up any leftovers from other runs. Some other things from
2250 this function should probably be moved into target_pre_inferior. */
2251 target_pre_inferior (from_tty
);
2253 if (non_stop
&& !target_supports_non_stop ())
2254 error (_("Cannot attach to this target in non-stop mode"));
2258 async_exec
= strip_bg_char (&args
);
2260 /* If we get a request for running in the bg but the target
2261 doesn't support it, error out. */
2262 if (async_exec
&& !target_can_async_p ())
2263 error (_("Asynchronous execution not supported on this target."));
2266 /* If we don't get a request of running in the bg, then we need
2267 to simulate synchronous (fg) execution. */
2268 if (!async_exec
&& target_can_async_p ())
2270 /* Simulate synchronous execution */
2271 async_disable_stdin ();
2272 make_cleanup ((make_cleanup_ftype
*)async_enable_stdin
, NULL
);
2275 target_attach (args
, from_tty
);
2277 /* Set up the "saved terminal modes" of the inferior
2278 based on what modes we are starting it with. */
2279 target_terminal_init ();
2281 /* Set up execution context to know that we should return from
2282 wait_for_inferior as soon as the target reports a stop. */
2283 init_wait_for_inferior ();
2284 clear_proceed_status ();
2288 /* If we find that the current thread isn't stopped, explicitly
2289 do so now, because we're going to install breakpoints and
2293 /* The user requested an `attach&'; stop just one thread. */
2294 target_stop (inferior_ptid
);
2296 /* The user requested an `attach', so stop all threads of this
2298 target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid
)));
2301 /* Some system don't generate traps when attaching to inferior.
2302 E.g. Mach 3 or GNU hurd. */
2303 if (!target_attach_no_wait
)
2305 struct inferior
*inferior
= current_inferior ();
2307 /* Careful here. See comments in inferior.h. Basically some
2308 OSes don't ignore SIGSTOPs on continue requests anymore. We
2309 need a way for handle_inferior_event to reset the stop_signal
2310 variable after an attach, and this is what
2311 STOP_QUIETLY_NO_SIGSTOP is for. */
2312 inferior
->stop_soon
= STOP_QUIETLY_NO_SIGSTOP
;
2314 if (target_can_async_p ())
2316 /* sync_execution mode. Wait for stop. */
2317 struct attach_command_continuation_args
*a
;
2319 a
= xmalloc (sizeof (*a
));
2320 a
->args
= xstrdup (args
);
2321 a
->from_tty
= from_tty
;
2322 a
->async_exec
= async_exec
;
2323 add_inferior_continuation (attach_command_continuation
, a
,
2324 attach_command_continuation_free_args
);
2325 discard_cleanups (back_to
);
2329 wait_for_inferior (0);
2332 attach_command_post_wait (args
, from_tty
, async_exec
);
2333 discard_cleanups (back_to
);
2338 * takes a program previously attached to and detaches it.
2339 * The program resumes execution and will no longer stop
2340 * on signals, etc. We better not have left any breakpoints
2341 * in the program or it'll die when it hits one. For this
2342 * to work, it may be necessary for the process to have been
2343 * previously attached. It *might* work if the program was
2344 * started via the normal ptrace (PTRACE_TRACEME).
2348 detach_command (char *args
, int from_tty
)
2350 dont_repeat (); /* Not for the faint of heart. */
2351 target_detach (args
, from_tty
);
2353 /* If the solist is global across inferiors, don't clear it when we
2354 detach from a single inferior. */
2355 if (!gdbarch_has_global_solist (target_gdbarch
))
2356 no_shared_libraries (NULL
, from_tty
);
2358 /* If the current target interface claims there's still execution,
2359 then don't mess with threads of other processes. */
2360 if (!target_has_execution
)
2361 init_thread_list ();
2363 if (deprecated_detach_hook
)
2364 deprecated_detach_hook ();
2367 /* Disconnect from the current target without resuming it (leaving it
2368 waiting for a debugger).
2370 We'd better not have left any breakpoints in the program or the
2371 next debugger will get confused. Currently only supported for some
2372 remote targets, since the normal attach mechanisms don't work on
2373 stopped processes on some native platforms (e.g. GNU/Linux). */
2376 disconnect_command (char *args
, int from_tty
)
2378 dont_repeat (); /* Not for the faint of heart */
2379 target_disconnect (args
, from_tty
);
2380 no_shared_libraries (NULL
, from_tty
);
2381 init_thread_list ();
2382 if (deprecated_detach_hook
)
2383 deprecated_detach_hook ();
2387 interrupt_target_1 (int all_threads
)
2391 ptid
= minus_one_ptid
;
2393 ptid
= inferior_ptid
;
2396 /* Tag the thread as having been explicitly requested to stop, so
2397 other parts of gdb know not to resume this thread automatically,
2398 if it was stopped due to an internal event. Limit this to
2399 non-stop mode, as when debugging a multi-threaded application in
2400 all-stop mode, we will only get one stop event --- it's undefined
2401 which thread will report the event. */
2403 set_stop_requested (ptid
, 1);
2406 /* Stop the execution of the target while running in async mode, in
2407 the backgound. In all-stop, stop the whole process. In non-stop
2408 mode, stop the current thread only by default, or stop all threads
2409 if the `-a' switch is used. */
2411 /* interrupt [-a] */
2413 interrupt_target_command (char *args
, int from_tty
)
2415 if (target_can_async_p ())
2417 int all_threads
= 0;
2419 dont_repeat (); /* Not for the faint of heart */
2422 && strncmp (args
, "-a", sizeof ("-a") - 1) == 0)
2425 if (!non_stop
&& all_threads
)
2426 error (_("-a is meaningless in all-stop mode."));
2428 interrupt_target_1 (all_threads
);
2433 print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
,
2434 struct frame_info
*frame
, const char *args
)
2436 if (gdbarch_print_float_info_p (gdbarch
))
2437 gdbarch_print_float_info (gdbarch
, file
, frame
, args
);
2441 int printed_something
= 0;
2444 regnum
< gdbarch_num_regs (gdbarch
)
2445 + gdbarch_num_pseudo_regs (gdbarch
);
2448 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, float_reggroup
))
2450 printed_something
= 1;
2451 gdbarch_print_registers_info (gdbarch
, file
, frame
, regnum
, 1);
2454 if (!printed_something
)
2455 fprintf_filtered (file
, "\
2456 No floating-point info available for this processor.\n");
2461 float_info (char *args
, int from_tty
)
2463 if (!target_has_registers
)
2464 error (_("The program has no registers now."));
2466 print_float_info (current_gdbarch
, gdb_stdout
,
2467 get_selected_frame (NULL
), args
);
2471 unset_command (char *args
, int from_tty
)
2473 printf_filtered (_("\
2474 \"unset\" must be followed by the name of an unset subcommand.\n"));
2475 help_list (unsetlist
, "unset ", -1, gdb_stdout
);
2479 _initialize_infcmd (void)
2481 struct cmd_list_element
*c
= NULL
;
2483 /* add the filename of the terminal connected to inferior I/O */
2484 add_setshow_filename_cmd ("inferior-tty", class_run
,
2485 &inferior_io_terminal
, _("\
2486 Set terminal for future runs of program being debugged."), _("\
2487 Show terminal for future runs of program being debugged."), _("\
2488 Usage: set inferior-tty /dev/pts/1"), NULL
, NULL
, &setlist
, &showlist
);
2489 add_com_alias ("tty", "set inferior-tty", class_alias
, 0);
2491 add_setshow_optional_filename_cmd ("args", class_run
,
2492 &inferior_args
, _("\
2493 Set argument list to give program being debugged when it is started."), _("\
2494 Show argument list to give program being debugged when it is started."), _("\
2495 Follow this command with any number of args, to be passed to the program."),
2498 &setlist
, &showlist
);
2500 c
= add_cmd ("environment", no_class
, environment_info
, _("\
2501 The environment to give the program, or one variable's value.\n\
2502 With an argument VAR, prints the value of environment variable VAR to\n\
2503 give the program being debugged. With no arguments, prints the entire\n\
2504 environment to be given to the program."), &showlist
);
2505 set_cmd_completer (c
, noop_completer
);
2507 add_prefix_cmd ("unset", no_class
, unset_command
,
2508 _("Complement to certain \"set\" commands."),
2509 &unsetlist
, "unset ", 0, &cmdlist
);
2511 c
= add_cmd ("environment", class_run
, unset_environment_command
, _("\
2512 Cancel environment variable VAR for the program.\n\
2513 This does not affect the program until the next \"run\" command."),
2515 set_cmd_completer (c
, noop_completer
);
2517 c
= add_cmd ("environment", class_run
, set_environment_command
, _("\
2518 Set environment variable value to give the program.\n\
2519 Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\
2520 VALUES of environment variables are uninterpreted strings.\n\
2521 This does not affect the program until the next \"run\" command."),
2523 set_cmd_completer (c
, noop_completer
);
2525 c
= add_com ("path", class_files
, path_command
, _("\
2526 Add directory DIR(s) to beginning of search path for object files.\n\
2527 $cwd in the path means the current working directory.\n\
2528 This path is equivalent to the $PATH shell variable. It is a list of\n\
2529 directories, separated by colons. These directories are searched to find\n\
2530 fully linked executable files and separately compiled object files as needed."));
2531 set_cmd_completer (c
, filename_completer
);
2533 c
= add_cmd ("paths", no_class
, path_info
, _("\
2534 Current search path for finding object files.\n\
2535 $cwd in the path means the current working directory.\n\
2536 This path is equivalent to the $PATH shell variable. It is a list of\n\
2537 directories, separated by colons. These directories are searched to find\n\
2538 fully linked executable files and separately compiled object files as needed."),
2540 set_cmd_completer (c
, noop_completer
);
2542 add_com ("attach", class_run
, attach_command
, _("\
2543 Attach to a process or file outside of GDB.\n\
2544 This command attaches to another target, of the same type as your last\n\
2545 \"target\" command (\"info files\" will show your target stack).\n\
2546 The command may take as argument a process id or a device file.\n\
2547 For a process id, you must have permission to send the process a signal,\n\
2548 and it must have the same effective uid as the debugger.\n\
2549 When using \"attach\" with a process id, the debugger finds the\n\
2550 program running in the process, looking first in the current working\n\
2551 directory, or (if not found there) using the source file search path\n\
2552 (see the \"directory\" command). You can also use the \"file\" command\n\
2553 to specify the program, and to load its symbol table."));
2555 add_prefix_cmd ("detach", class_run
, detach_command
, _("\
2556 Detach a process or file previously attached.\n\
2557 If a process, it is no longer traced, and it continues its execution. If\n\
2558 you were debugging a file, the file is closed and gdb no longer accesses it."),
2559 &detachlist
, "detach ", 0, &cmdlist
);
2561 add_com ("disconnect", class_run
, disconnect_command
, _("\
2562 Disconnect from a target.\n\
2563 The target will wait for another debugger to connect. Not available for\n\
2566 add_com ("signal", class_run
, signal_command
, _("\
2567 Continue program giving it signal specified by the argument.\n\
2568 An argument of \"0\" means continue program without giving it a signal."));
2570 add_com ("stepi", class_run
, stepi_command
, _("\
2571 Step one instruction exactly.\n\
2572 Argument N means do this N times (or till program stops for another reason)."));
2573 add_com_alias ("si", "stepi", class_alias
, 0);
2575 add_com ("nexti", class_run
, nexti_command
, _("\
2576 Step one instruction, but proceed through subroutine calls.\n\
2577 Argument N means do this N times (or till program stops for another reason)."));
2578 add_com_alias ("ni", "nexti", class_alias
, 0);
2580 add_com ("finish", class_run
, finish_command
, _("\
2581 Execute until selected stack frame returns.\n\
2582 Upon return, the value returned is printed and put in the value history."));
2583 add_com_alias ("fin", "finish", class_run
, 1);
2585 add_com ("next", class_run
, next_command
, _("\
2586 Step program, proceeding through subroutine calls.\n\
2587 Like the \"step\" command as long as subroutine calls do not happen;\n\
2588 when they do, the call is treated as one instruction.\n\
2589 Argument N means do this N times (or till program stops for another reason)."));
2590 add_com_alias ("n", "next", class_run
, 1);
2592 add_com_alias ("S", "next", class_run
, 1);
2594 add_com ("step", class_run
, step_command
, _("\
2595 Step program until it reaches a different source line.\n\
2596 Argument N means do this N times (or till program stops for another reason)."));
2597 add_com_alias ("s", "step", class_run
, 1);
2599 c
= add_com ("until", class_run
, until_command
, _("\
2600 Execute until the program reaches a source line greater than the current\n\
2601 or a specified location (same args as break command) within the current frame."));
2602 set_cmd_completer (c
, location_completer
);
2603 add_com_alias ("u", "until", class_run
, 1);
2605 c
= add_com ("advance", class_run
, advance_command
, _("\
2606 Continue the program up to the given location (same form as args for break command).\n\
2607 Execution will also stop upon exit from the current stack frame."));
2608 set_cmd_completer (c
, location_completer
);
2610 c
= add_com ("jump", class_run
, jump_command
, _("\
2611 Continue program being debugged at specified line or address.\n\
2612 Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\
2613 for an address to start at."));
2614 set_cmd_completer (c
, location_completer
);
2618 c
= add_com ("go", class_run
, go_command
, _("\
2619 Usage: go <location>\n\
2620 Continue program being debugged, stopping at specified line or \n\
2622 Give as argument either LINENUM or *ADDR, where ADDR is an \n\
2623 expression for an address to start at.\n\
2624 This command is a combination of tbreak and jump."));
2625 set_cmd_completer (c
, location_completer
);
2629 add_com_alias ("g", "go", class_run
, 1);
2631 c
= add_com ("continue", class_run
, continue_command
, _("\
2632 Continue program being debugged, after signal or breakpoint.\n\
2633 If proceeding from breakpoint, a number N may be used as an argument,\n\
2634 which means to set the ignore count of that breakpoint to N - 1 (so that\n\
2635 the breakpoint won't break until the Nth time it is reached).\n\
2637 If non-stop mode is enabled, continue only the current thread,\n\
2638 otherwise all the threads in the program are continued. To \n\
2639 continue all stopped threads in non-stop mode, use the -a option.\n\
2640 Specifying -a and an ignore count simultaneously is an error."));
2641 add_com_alias ("c", "cont", class_run
, 1);
2642 add_com_alias ("fg", "cont", class_run
, 1);
2644 c
= add_com ("run", class_run
, run_command
, _("\
2645 Start debugged program. You may specify arguments to give it.\n\
2646 Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\
2647 Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\
2648 With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\
2649 To cancel previous arguments and run with no arguments,\n\
2650 use \"set args\" without arguments."));
2651 set_cmd_completer (c
, filename_completer
);
2652 add_com_alias ("r", "run", class_run
, 1);
2654 add_com ("R", class_run
, run_no_args_command
,
2655 _("Start debugged program with no arguments."));
2657 c
= add_com ("start", class_run
, start_command
, _("\
2658 Run the debugged program until the beginning of the main procedure.\n\
2659 You may specify arguments to give to your program, just as with the\n\
2660 \"run\" command."));
2661 set_cmd_completer (c
, filename_completer
);
2663 c
= add_com ("interrupt", class_run
, interrupt_target_command
,
2664 _("Interrupt the execution of the debugged program.\n\
2665 If non-stop mode is enabled, interrupt only the current thread,\n\
2666 otherwise all the threads in the program are stopped. To \n\
2667 interrupt all running threads in non-stop mode, use the -a option."));
2669 add_info ("registers", nofp_registers_info
, _("\
2670 List of integer registers and their contents, for selected stack frame.\n\
2671 Register name as argument means describe only that register."));
2672 add_info_alias ("r", "registers", 1);
2675 add_com ("lr", class_info
, nofp_registers_info
, _("\
2676 List of integer registers and their contents, for selected stack frame.\n\
2677 Register name as argument means describe only that register."));
2678 add_info ("all-registers", all_registers_info
, _("\
2679 List of all registers and their contents, for selected stack frame.\n\
2680 Register name as argument means describe only that register."));
2682 add_info ("program", program_info
,
2683 _("Execution status of the program."));
2685 add_info ("float", float_info
,
2686 _("Print the status of the floating point unit\n"));
2688 add_info ("vector", vector_info
,
2689 _("Print the status of the vector unit\n"));
2691 inferior_environ
= make_environ ();
2692 init_environ (inferior_environ
);