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 disconnect_command (char *, int);
91 static void unset_environment_command (char *, int);
93 static void set_environment_command (char *, int);
95 static void environment_info (char *, int);
97 static void program_info (char *, int);
99 static void finish_command (char *, int);
101 static void signal_command (char *, int);
103 static void jump_command (char *, int);
105 static void step_1 (int, int, char *);
106 static void step_once (int skip_subroutines
, int single_inst
, int count
, int thread
);
108 static void next_command (char *, int);
110 static void step_command (char *, int);
112 static void run_command (char *, int);
114 static void run_no_args_command (char *args
, int from_tty
);
116 static void go_command (char *line_no
, int from_tty
);
118 static int strip_bg_char (char **);
120 void _initialize_infcmd (void);
122 #define ERROR_NO_INFERIOR \
123 if (!target_has_execution) error (_("The program is not being run."));
125 /* String containing arguments to give to the program, separated by spaces.
126 Empty string (pointer to '\0') means no args. */
128 static char *inferior_args
;
130 /* The inferior arguments as a vector. If INFERIOR_ARGC is nonzero,
131 then we must compute INFERIOR_ARGS from this (via the target). */
133 static int inferior_argc
;
134 static char **inferior_argv
;
136 /* File name for default use for standard in/out in the inferior. */
138 static char *inferior_io_terminal
;
140 /* Pid of our debugged inferior, or 0 if no inferior now.
141 Since various parts of infrun.c test this to see whether there is a program
142 being debugged it should be nonzero (currently 3 is used) for remote
145 ptid_t inferior_ptid
;
147 /* Address at which inferior stopped. */
151 /* Flag indicating that a command has proceeded the inferior past the
152 current breakpoint. */
154 int breakpoint_proceeded
;
156 /* Nonzero if stopped due to completion of a stack dummy routine. */
158 int stop_stack_dummy
;
160 /* Nonzero if stopped due to a random (unexpected) signal in inferior
163 int stopped_by_random_signal
;
165 /* Environment to use for running inferior,
166 in format described in environ.h. */
168 struct gdb_environ
*inferior_environ
;
170 /* When set, no calls to target_resumed observer will be made. */
171 int suppress_resume_observer
= 0;
172 /* When set, normal_stop will not call the normal_stop observer. */
173 int suppress_stop_observer
= 0;
175 /* Accessor routines. */
178 set_inferior_io_terminal (const char *terminal_name
)
180 if (inferior_io_terminal
)
181 xfree (inferior_io_terminal
);
184 inferior_io_terminal
= NULL
;
186 inferior_io_terminal
= savestring (terminal_name
, strlen (terminal_name
));
190 get_inferior_io_terminal (void)
192 return inferior_io_terminal
;
196 get_inferior_args (void)
198 if (inferior_argc
!= 0)
202 n
= gdbarch_construct_inferior_arguments (current_gdbarch
,
203 inferior_argc
, inferior_argv
);
204 old
= set_inferior_args (n
);
208 if (inferior_args
== NULL
)
209 inferior_args
= xstrdup ("");
211 return inferior_args
;
215 set_inferior_args (char *newargs
)
217 char *saved_args
= inferior_args
;
219 inferior_args
= newargs
;
227 set_inferior_args_vector (int argc
, char **argv
)
229 inferior_argc
= argc
;
230 inferior_argv
= argv
;
233 /* Notice when `set args' is run. */
235 notice_args_set (char *args
, int from_tty
, struct cmd_list_element
*c
)
241 /* Notice when `show args' is run. */
243 notice_args_read (struct ui_file
*file
, int from_tty
,
244 struct cmd_list_element
*c
, const char *value
)
246 /* Note that we ignore the passed-in value in favor of computing it
248 deprecated_show_value_hack (file
, from_tty
, c
, get_inferior_args ());
252 /* Compute command-line string given argument vector. This does the
253 same shell processing as fork_inferior. */
255 construct_inferior_arguments (struct gdbarch
*gdbarch
, int argc
, char **argv
)
259 if (STARTUP_WITH_SHELL
)
261 /* This holds all the characters considered special to the
262 typical Unix shells. We include `^' because the SunOS
263 /bin/sh treats it as a synonym for `|'. */
264 char *special
= "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n";
269 /* We over-compute the size. It shouldn't matter. */
270 for (i
= 0; i
< argc
; ++i
)
271 length
+= 3 * strlen (argv
[i
]) + 1 + 2 * (argv
[i
][0] == '\0');
273 result
= (char *) xmalloc (length
);
276 for (i
= 0; i
< argc
; ++i
)
281 /* Need to handle empty arguments specially. */
282 if (argv
[i
][0] == '\0')
289 for (cp
= argv
[i
]; *cp
; ++cp
)
293 /* A newline cannot be quoted with a backslash (it
294 just disappears), only by putting it inside
302 if (strchr (special
, *cp
) != NULL
)
313 /* In this case we can't handle arguments that contain spaces,
314 tabs, or newlines -- see breakup_args(). */
318 for (i
= 0; i
< argc
; ++i
)
320 char *cp
= strchr (argv
[i
], ' ');
322 cp
= strchr (argv
[i
], '\t');
324 cp
= strchr (argv
[i
], '\n');
326 error (_("can't handle command-line argument containing whitespace"));
327 length
+= strlen (argv
[i
]) + 1;
330 result
= (char *) xmalloc (length
);
332 for (i
= 0; i
< argc
; ++i
)
335 strcat (result
, " ");
336 strcat (result
, argv
[i
]);
344 /* This function detects whether or not a '&' character (indicating
345 background execution) has been added as *the last* of the arguments ARGS
346 of a command. If it has, it removes it and returns 1. Otherwise it
347 does nothing and returns 0. */
349 strip_bg_char (char **args
)
353 p
= strchr (*args
, '&');
357 if (p
== (*args
+ strlen (*args
) - 1))
359 if (strlen (*args
) > 1)
363 while (*p
== ' ' || *p
== '\t');
375 tty_command (char *file
, int from_tty
)
378 error_no_arg (_("terminal name for running target process"));
380 set_inferior_io_terminal (file
);
383 /* Common actions to take after creating any sort of inferior, by any
384 means (running, attaching, connecting, et cetera). The target
385 should be stopped. */
388 post_create_inferior (struct target_ops
*target
, int from_tty
)
390 /* Be sure we own the terminal in case write operations are performed. */
391 target_terminal_ours ();
393 /* If the target hasn't taken care of this already, do it now.
394 Targets which need to access registers during to_open,
395 to_create_inferior, or to_attach should do it earlier; but many
397 target_find_description ();
399 /* If the solist is global across processes, there's no need to
401 if (exec_bfd
&& !gdbarch_has_global_solist (target_gdbarch
))
403 /* Sometimes the platform-specific hook loads initial shared
404 libraries, and sometimes it doesn't. Try to do so first, so
405 that we can add them with the correct value for FROM_TTY.
406 If we made all the inferior hook methods consistent,
407 this call could be removed. */
409 SOLIB_ADD (NULL
, from_tty
, target
, auto_solib_add
);
411 solib_add (NULL
, from_tty
, target
, auto_solib_add
);
417 /* Create the hooks to handle shared library load and unload
419 #ifdef SOLIB_CREATE_INFERIOR_HOOK
420 SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid
));
422 solib_create_inferior_hook ();
426 observer_notify_inferior_created (target
, from_tty
);
429 /* Kill the inferior if already running. This function is designed
430 to be called when we are about to start the execution of the program
431 from the beginning. Ask the user to confirm that he wants to restart
432 the program being debugged when FROM_TTY is non-null. */
435 kill_if_already_running (int from_tty
)
437 if (! ptid_equal (inferior_ptid
, null_ptid
) && target_has_execution
)
439 /* Bail out before killing the program if we will not be able to
441 target_require_runnable ();
444 && !query ("The program being debugged has been started already.\n\
445 Start it from the beginning? "))
446 error (_("Program not restarted."));
451 /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert
452 a temporary breakpoint at the begining of the main program before
453 running the program. */
456 run_command_1 (char *args
, int from_tty
, int tbreak_at_main
)
462 kill_if_already_running (from_tty
);
464 init_wait_for_inferior ();
465 clear_breakpoint_hit_counts ();
467 /* Clean up any leftovers from other runs. Some other things from
468 this function should probably be moved into target_pre_inferior. */
469 target_pre_inferior (from_tty
);
471 /* The comment here used to read, "The exec file is re-read every
472 time we do a generic_mourn_inferior, so we just have to worry
473 about the symbol file." The `generic_mourn_inferior' function
474 gets called whenever the program exits. However, suppose the
475 program exits, and *then* the executable file changes? We need
476 to check again here. Since reopen_exec_file doesn't do anything
477 if the timestamp hasn't changed, I don't see the harm. */
481 /* Insert the temporary breakpoint if a location was specified. */
483 tbreak_command (main_name (), 0);
485 exec_file
= (char *) get_exec_file (0);
487 if (non_stop
&& !target_supports_non_stop ())
488 error (_("The target does not support running in non-stop mode."));
490 /* We keep symbols from add-symbol-file, on the grounds that the
491 user might want to add some symbols before running the program
492 (right?). But sometimes (dynamic loading where the user manually
493 introduces the new symbols with add-symbol-file), the code which
494 the symbols describe does not persist between runs. Currently
495 the user has to manually nuke all symbols between runs if they
496 want them to go away (PR 2207). This is probably reasonable. */
500 if (target_can_async_p ())
501 async_disable_stdin ();
505 int async_exec
= strip_bg_char (&args
);
507 /* If we get a request for running in the bg but the target
508 doesn't support it, error out. */
509 if (async_exec
&& !target_can_async_p ())
510 error (_("Asynchronous execution not supported on this target."));
512 /* If we don't get a request of running in the bg, then we need
513 to simulate synchronous (fg) execution. */
514 if (!async_exec
&& target_can_async_p ())
516 /* Simulate synchronous execution */
517 async_disable_stdin ();
520 /* If there were other args, beside '&', process them. */
523 char *old_args
= set_inferior_args (xstrdup (args
));
530 ui_out_field_string (uiout
, NULL
, "Starting program");
531 ui_out_text (uiout
, ": ");
533 ui_out_field_string (uiout
, "execfile", exec_file
);
534 ui_out_spaces (uiout
, 1);
535 /* We call get_inferior_args() because we might need to compute
537 ui_out_field_string (uiout
, "infargs", get_inferior_args ());
538 ui_out_text (uiout
, "\n");
539 ui_out_flush (uiout
);
542 /* We call get_inferior_args() because we might need to compute
544 target_create_inferior (exec_file
, get_inferior_args (),
545 environ_vector (inferior_environ
), from_tty
);
547 /* Pass zero for FROM_TTY, because at this point the "run" command
548 has done its thing; now we are setting up the running program. */
549 post_create_inferior (¤t_target
, 0);
551 /* Start the target running. */
552 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_0
, 0);
557 run_command (char *args
, int from_tty
)
559 run_command_1 (args
, from_tty
, 0);
563 run_no_args_command (char *args
, int from_tty
)
565 char *old_args
= set_inferior_args (xstrdup (""));
570 /* Start the execution of the program up until the beginning of the main
574 start_command (char *args
, int from_tty
)
576 /* Some languages such as Ada need to search inside the program
577 minimal symbols for the location where to put the temporary
578 breakpoint before starting. */
579 if (!have_minimal_symbols ())
580 error (_("No symbol table loaded. Use the \"file\" command."));
582 /* Run the program until reaching the main procedure... */
583 run_command_1 (args
, from_tty
, 1);
587 proceed_thread_callback (struct thread_info
*thread
, void *arg
)
589 /* We go through all threads individually instead of compressing
590 into a single target `resume_all' request, because some threads
591 may be stopped in internal breakpoints/events, or stopped waiting
592 for its turn in the displaced stepping queue (that is, they are
593 running && !executing). The target side has no idea about why
594 the thread is stopped, so a `resume_all' command would resume too
595 much. If/when GDB gains a way to tell the target `hold this
596 thread stopped until I say otherwise', then we can optimize
598 if (!is_stopped (thread
->ptid
))
601 switch_to_thread (thread
->ptid
);
602 clear_proceed_status ();
603 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
608 continue_1 (int all_threads
)
612 if (non_stop
&& all_threads
)
614 /* Don't error out if the current thread is running, because
615 there may be other stopped threads. */
616 struct cleanup
*old_chain
;
618 /* Backup current thread and selected frame. */
619 old_chain
= make_cleanup_restore_current_thread ();
621 iterate_over_threads (proceed_thread_callback
, NULL
);
623 /* Restore selected ptid. */
624 do_cleanups (old_chain
);
628 ensure_not_running ();
629 clear_proceed_status ();
630 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
634 /* continue [-a] [proceed-count] [&] */
636 continue_command (char *args
, int from_tty
)
642 /* Find out whether we must run in the background. */
644 async_exec
= strip_bg_char (&args
);
646 /* If we must run in the background, but the target can't do it,
648 if (async_exec
&& !target_can_async_p ())
649 error (_("Asynchronous execution not supported on this target."));
651 /* If we are not asked to run in the bg, then prepare to run in the
652 foreground, synchronously. */
653 if (!async_exec
&& target_can_async_p ())
655 /* Simulate synchronous execution */
656 async_disable_stdin ();
661 if (strncmp (args
, "-a", sizeof ("-a") - 1) == 0)
664 args
+= sizeof ("-a") - 1;
670 if (!non_stop
&& all_threads
)
671 error (_("`-a' is meaningless in all-stop mode."));
673 if (args
!= NULL
&& all_threads
)
675 Can't resume all threads and specify proceed count simultaneously."));
677 /* If we have an argument left, set proceed count of breakpoint we
684 struct thread_info
*tp
;
687 tp
= find_thread_pid (inferior_ptid
);
691 struct target_waitstatus ws
;
693 get_last_target_status (&last_ptid
, &ws
);
694 tp
= find_thread_pid (last_ptid
);
697 bs
= tp
->stop_bpstat
;
699 while ((stat
= bpstat_num (&bs
, &num
)) != 0)
702 set_ignore_count (num
,
703 parse_and_eval_long (args
) - 1,
705 /* set_ignore_count prints a message ending with a period.
706 So print two spaces before "Continuing.". */
708 printf_filtered (" ");
712 if (!stopped
&& from_tty
)
715 ("Not stopped at any breakpoint; argument ignored.\n");
720 printf_filtered (_("Continuing.\n"));
722 continue_1 (all_threads
);
725 /* Step until outside of current statement. */
728 step_command (char *count_string
, int from_tty
)
730 step_1 (0, 0, count_string
);
733 /* Likewise, but skip over subroutine calls as if single instructions. */
736 next_command (char *count_string
, int from_tty
)
738 step_1 (1, 0, count_string
);
741 /* Likewise, but step only one instruction. */
744 stepi_command (char *count_string
, int from_tty
)
746 step_1 (0, 1, count_string
);
750 nexti_command (char *count_string
, int from_tty
)
752 step_1 (1, 1, count_string
);
756 delete_longjmp_breakpoint_cleanup (void *arg
)
758 int thread
= * (int *) arg
;
759 delete_longjmp_breakpoint (thread
);
763 step_1 (int skip_subroutines
, int single_inst
, char *count_string
)
766 struct frame_info
*frame
;
767 struct cleanup
*cleanups
= make_cleanup (null_cleanup
, NULL
);
772 ensure_not_running ();
775 async_exec
= strip_bg_char (&count_string
);
777 /* If we get a request for running in the bg but the target
778 doesn't support it, error out. */
779 if (async_exec
&& !target_can_async_p ())
780 error (_("Asynchronous execution not supported on this target."));
782 /* If we don't get a request of running in the bg, then we need
783 to simulate synchronous (fg) execution. */
784 if (!async_exec
&& target_can_async_p ())
786 /* Simulate synchronous execution */
787 async_disable_stdin ();
790 count
= count_string
? parse_and_eval_long (count_string
) : 1;
792 if (!single_inst
|| skip_subroutines
) /* leave si command alone */
794 if (in_thread_list (inferior_ptid
))
795 thread
= pid_to_thread_id (inferior_ptid
);
797 set_longjmp_breakpoint ();
799 make_cleanup (delete_longjmp_breakpoint_cleanup
, &thread
);
802 /* In synchronous case, all is well, just use the regular for loop. */
803 if (!target_can_async_p ())
805 for (; count
> 0; count
--)
807 struct thread_info
*tp
= inferior_thread ();
808 clear_proceed_status ();
810 frame
= get_current_frame ();
811 tp
->step_frame_id
= get_frame_id (frame
);
815 find_pc_line_pc_range (stop_pc
,
816 &tp
->step_range_start
, &tp
->step_range_end
);
817 if (tp
->step_range_end
== 0)
820 if (find_pc_partial_function (stop_pc
, &name
,
821 &tp
->step_range_start
,
822 &tp
->step_range_end
) == 0)
823 error (_("Cannot find bounds of current function"));
825 target_terminal_ours ();
826 printf_filtered (_("\
827 Single stepping until exit from function %s, \n\
828 which has no line number information.\n"), name
);
833 /* Say we are stepping, but stop after one insn whatever it does. */
834 tp
->step_range_start
= tp
->step_range_end
= 1;
835 if (!skip_subroutines
)
837 Don't step over function calls, not even to functions lacking
839 tp
->step_over_calls
= STEP_OVER_NONE
;
842 if (skip_subroutines
)
843 tp
->step_over_calls
= STEP_OVER_ALL
;
845 tp
->step_multi
= (count
> 1);
846 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
848 if (!target_has_execution
849 || !inferior_thread ()->stop_step
)
853 do_cleanups (cleanups
);
856 /* In case of asynchronous target things get complicated, do only
857 one step for now, before returning control to the event loop. Let
858 the continuation figure out how many other steps we need to do,
859 and handle them one at the time, through step_once(). */
862 step_once (skip_subroutines
, single_inst
, count
, thread
);
863 /* We are running, and the continuation is installed. It will
864 disable the longjmp breakpoint as appropriate. */
865 discard_cleanups (cleanups
);
869 struct step_1_continuation_args
872 int skip_subroutines
;
877 /* Called after we are done with one step operation, to check whether
878 we need to step again, before we print the prompt and return control
879 to the user. If count is > 1, we will need to do one more call to
880 proceed(), via step_once(). Basically it is like step_once and
881 step_1_continuation are co-recursive. */
883 step_1_continuation (void *args
)
885 struct step_1_continuation_args
*a
= args
;
887 if (target_has_execution
)
889 struct thread_info
*tp
;
891 tp
= inferior_thread ();
892 if (tp
->step_multi
&& tp
->stop_step
)
894 /* There are more steps to make, and we did stop due to
895 ending a stepping range. Do another step. */
896 step_once (a
->skip_subroutines
, a
->single_inst
, a
->count
- 1, a
->thread
);
902 /* We either stopped for some reason that is not stepping, or there
903 are no further steps to make. Cleanup. */
904 if (!a
->single_inst
|| a
->skip_subroutines
)
905 delete_longjmp_breakpoint (a
->thread
);
908 /* Do just one step operation. If count >1 we will have to set up a
909 continuation to be done after the target stops (after this one
910 step). This is useful to implement the 'step n' kind of commands, in
911 case of asynchronous targets. We had to split step_1 into two parts,
912 one to be done before proceed() and one afterwards. This function is
913 called in case of step n with n>1, after the first step operation has
916 step_once (int skip_subroutines
, int single_inst
, int count
, int thread
)
918 struct frame_info
*frame
;
919 struct step_1_continuation_args
*args
;
923 /* Don't assume THREAD is a valid thread id. It is set to -1 if
924 the longjmp breakpoint was not required. Use the
925 INFERIOR_PTID thread instead, which is the same thread when
927 struct thread_info
*tp
= inferior_thread ();
928 clear_proceed_status ();
930 frame
= get_current_frame ();
931 if (!frame
) /* Avoid coredump here. Why tho? */
932 error (_("No current frame"));
933 tp
->step_frame_id
= get_frame_id (frame
);
937 find_pc_line_pc_range (stop_pc
,
938 &tp
->step_range_start
, &tp
->step_range_end
);
940 /* If we have no line info, switch to stepi mode. */
941 if (tp
->step_range_end
== 0 && step_stop_if_no_debug
)
943 tp
->step_range_start
= tp
->step_range_end
= 1;
945 else if (tp
->step_range_end
== 0)
948 if (find_pc_partial_function (stop_pc
, &name
,
949 &tp
->step_range_start
,
950 &tp
->step_range_end
) == 0)
951 error (_("Cannot find bounds of current function"));
953 target_terminal_ours ();
954 printf_filtered (_("\
955 Single stepping until exit from function %s, \n\
956 which has no line number information.\n"), name
);
961 /* Say we are stepping, but stop after one insn whatever it does. */
962 tp
->step_range_start
= tp
->step_range_end
= 1;
963 if (!skip_subroutines
)
965 Don't step over function calls, not even to functions lacking
967 tp
->step_over_calls
= STEP_OVER_NONE
;
970 if (skip_subroutines
)
971 tp
->step_over_calls
= STEP_OVER_ALL
;
973 tp
->step_multi
= (count
> 1);
974 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
976 args
= xmalloc (sizeof (*args
));
977 args
->skip_subroutines
= skip_subroutines
;
978 args
->single_inst
= single_inst
;
980 args
->thread
= thread
;
981 add_intermediate_continuation (tp
, step_1_continuation
, args
, xfree
);
986 /* Continue program at specified address. */
989 jump_command (char *arg
, int from_tty
)
992 struct symtabs_and_lines sals
;
993 struct symtab_and_line sal
;
999 ensure_not_running ();
1001 /* Find out whether we must run in the background. */
1003 async_exec
= strip_bg_char (&arg
);
1005 /* If we must run in the background, but the target can't do it,
1007 if (async_exec
&& !target_can_async_p ())
1008 error (_("Asynchronous execution not supported on this target."));
1011 error_no_arg (_("starting address"));
1013 sals
= decode_line_spec_1 (arg
, 1);
1014 if (sals
.nelts
!= 1)
1016 error (_("Unreasonable jump request"));
1022 if (sal
.symtab
== 0 && sal
.pc
== 0)
1023 error (_("No source file has been specified."));
1025 resolve_sal_pc (&sal
); /* May error out */
1027 /* See if we are trying to jump to another function. */
1028 fn
= get_frame_function (get_current_frame ());
1029 sfn
= find_pc_function (sal
.pc
);
1030 if (fn
!= NULL
&& sfn
!= fn
)
1032 if (!query ("Line %d is not in `%s'. Jump anyway? ", sal
.line
,
1033 SYMBOL_PRINT_NAME (fn
)))
1035 error (_("Not confirmed."));
1042 fixup_symbol_section (sfn
, 0);
1043 if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn
)) &&
1044 !section_is_mapped (SYMBOL_OBJ_SECTION (sfn
)))
1046 if (!query ("WARNING!!! Destination is in unmapped overlay! Jump anyway? "))
1048 error (_("Not confirmed."));
1058 printf_filtered (_("Continuing at "));
1059 fputs_filtered (paddress (addr
), gdb_stdout
);
1060 printf_filtered (".\n");
1063 /* If we are not asked to run in the bg, then prepare to run in the
1064 foreground, synchronously. */
1065 if (!async_exec
&& target_can_async_p ())
1067 /* Simulate synchronous execution */
1068 async_disable_stdin ();
1071 clear_proceed_status ();
1072 proceed (addr
, TARGET_SIGNAL_0
, 0);
1076 /* Go to line or address in current procedure */
1078 go_command (char *line_no
, int from_tty
)
1080 if (line_no
== (char *) NULL
|| !*line_no
)
1081 printf_filtered (_("Usage: go <location>\n"));
1084 tbreak_command (line_no
, from_tty
);
1085 jump_command (line_no
, from_tty
);
1090 /* Continue program giving it specified signal. */
1093 signal_command (char *signum_exp
, int from_tty
)
1095 enum target_signal oursig
;
1098 dont_repeat (); /* Too dangerous. */
1100 ensure_not_running ();
1102 /* Find out whether we must run in the background. */
1103 if (signum_exp
!= NULL
)
1104 async_exec
= strip_bg_char (&signum_exp
);
1106 /* If we must run in the background, but the target can't do it,
1108 if (async_exec
&& !target_can_async_p ())
1109 error (_("Asynchronous execution not supported on this target."));
1111 /* If we are not asked to run in the bg, then prepare to run in the
1112 foreground, synchronously. */
1113 if (!async_exec
&& target_can_async_p ())
1115 /* Simulate synchronous execution. */
1116 async_disable_stdin ();
1120 error_no_arg (_("signal number"));
1122 /* It would be even slicker to make signal names be valid expressions,
1123 (the type could be "enum $signal" or some such), then the user could
1124 assign them to convenience variables. */
1125 oursig
= target_signal_from_name (signum_exp
);
1127 if (oursig
== TARGET_SIGNAL_UNKNOWN
)
1129 /* No, try numeric. */
1130 int num
= parse_and_eval_long (signum_exp
);
1133 oursig
= TARGET_SIGNAL_0
;
1135 oursig
= target_signal_from_command (num
);
1140 if (oursig
== TARGET_SIGNAL_0
)
1141 printf_filtered (_("Continuing with no signal.\n"));
1143 printf_filtered (_("Continuing with signal %s.\n"),
1144 target_signal_to_name (oursig
));
1147 clear_proceed_status ();
1148 /* "signal 0" should not get stuck if we are stopped at a breakpoint.
1149 FIXME: Neither should "signal foo" but when I tried passing
1150 (CORE_ADDR)-1 unconditionally I got a testsuite failure which I haven't
1151 tried to track down yet. */
1152 proceed (oursig
== TARGET_SIGNAL_0
? (CORE_ADDR
) -1 : stop_pc
, oursig
, 0);
1155 /* Proceed until we reach a different source line with pc greater than
1156 our current one or exit the function. We skip calls in both cases.
1158 Note that eventually this command should probably be changed so
1159 that only source lines are printed out when we hit the breakpoint
1160 we set. This may involve changes to wait_for_inferior and the
1161 proceed status code. */
1164 until_next_command (int from_tty
)
1166 struct frame_info
*frame
;
1168 struct symbol
*func
;
1169 struct symtab_and_line sal
;
1170 struct thread_info
*tp
= inferior_thread ();
1172 clear_proceed_status ();
1174 frame
= get_current_frame ();
1176 /* Step until either exited from this function or greater
1177 than the current line (if in symbolic section) or pc (if
1181 func
= find_pc_function (pc
);
1185 struct minimal_symbol
*msymbol
= lookup_minimal_symbol_by_pc (pc
);
1187 if (msymbol
== NULL
)
1188 error (_("Execution is not within a known function."));
1190 tp
->step_range_start
= SYMBOL_VALUE_ADDRESS (msymbol
);
1191 tp
->step_range_end
= pc
;
1195 sal
= find_pc_line (pc
, 0);
1197 tp
->step_range_start
= BLOCK_START (SYMBOL_BLOCK_VALUE (func
));
1198 tp
->step_range_end
= sal
.end
;
1201 tp
->step_over_calls
= STEP_OVER_ALL
;
1202 tp
->step_frame_id
= get_frame_id (frame
);
1204 tp
->step_multi
= 0; /* Only one call to proceed */
1206 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
1210 until_command (char *arg
, int from_tty
)
1214 if (!target_has_execution
)
1215 error (_("The program is not running."));
1217 /* Find out whether we must run in the background. */
1219 async_exec
= strip_bg_char (&arg
);
1221 /* If we must run in the background, but the target can't do it,
1223 if (async_exec
&& !target_can_async_p ())
1224 error (_("Asynchronous execution not supported on this target."));
1226 /* If we are not asked to run in the bg, then prepare to run in the
1227 foreground, synchronously. */
1228 if (!async_exec
&& target_can_async_p ())
1230 /* Simulate synchronous execution */
1231 async_disable_stdin ();
1235 until_break_command (arg
, from_tty
, 0);
1237 until_next_command (from_tty
);
1241 advance_command (char *arg
, int from_tty
)
1245 if (!target_has_execution
)
1246 error (_("The program is not running."));
1249 error_no_arg (_("a location"));
1251 /* Find out whether we must run in the background. */
1253 async_exec
= strip_bg_char (&arg
);
1255 /* If we must run in the background, but the target can't do it,
1257 if (async_exec
&& !target_can_async_p ())
1258 error (_("Asynchronous execution not supported on this target."));
1260 /* If we are not asked to run in the bg, then prepare to run in the
1261 foreground, synchronously. */
1262 if (!async_exec
&& target_can_async_p ())
1264 /* Simulate synchronous execution. */
1265 async_disable_stdin ();
1268 until_break_command (arg
, from_tty
, 1);
1271 /* Print the result of a function at the end of a 'finish' command. */
1274 print_return_value (struct type
*func_type
, struct type
*value_type
)
1276 struct gdbarch
*gdbarch
= current_gdbarch
;
1277 struct cleanup
*old_chain
;
1278 struct ui_stream
*stb
;
1279 struct value
*value
;
1281 CHECK_TYPEDEF (value_type
);
1282 gdb_assert (TYPE_CODE (value_type
) != TYPE_CODE_VOID
);
1284 /* FIXME: 2003-09-27: When returning from a nested inferior function
1285 call, it's possible (with no help from the architecture vector)
1286 to locate and return/print a "struct return" value. This is just
1287 a more complicated case of what is already being done in in the
1288 inferior function call code. In fact, when inferior function
1289 calls are made async, this will likely be made the norm. */
1291 switch (gdbarch_return_value (gdbarch
, func_type
, value_type
,
1294 case RETURN_VALUE_REGISTER_CONVENTION
:
1295 case RETURN_VALUE_ABI_RETURNS_ADDRESS
:
1296 case RETURN_VALUE_ABI_PRESERVES_ADDRESS
:
1297 value
= allocate_value (value_type
);
1298 gdbarch_return_value (gdbarch
, func_type
, value_type
, stop_registers
,
1299 value_contents_raw (value
), NULL
);
1301 case RETURN_VALUE_STRUCT_CONVENTION
:
1305 internal_error (__FILE__
, __LINE__
, _("bad switch"));
1310 struct value_print_options opts
;
1313 stb
= ui_out_stream_new (uiout
);
1314 old_chain
= make_cleanup_ui_out_stream_delete (stb
);
1315 ui_out_text (uiout
, "Value returned is ");
1316 ui_out_field_fmt (uiout
, "gdb-result-var", "$%d",
1317 record_latest_value (value
));
1318 ui_out_text (uiout
, " = ");
1319 get_raw_print_options (&opts
);
1320 value_print (value
, stb
->stream
, &opts
);
1321 ui_out_field_stream (uiout
, "return-value", stb
);
1322 ui_out_text (uiout
, "\n");
1323 do_cleanups (old_chain
);
1327 ui_out_text (uiout
, "Value returned has type: ");
1328 ui_out_field_string (uiout
, "return-type", TYPE_NAME (value_type
));
1329 ui_out_text (uiout
, ".");
1330 ui_out_text (uiout
, " Cannot determine contents\n");
1334 /* Stuff that needs to be done by the finish command after the target
1335 has stopped. In asynchronous mode, we wait for the target to stop
1336 in the call to poll or select in the event loop, so it is
1337 impossible to do all the stuff as part of the finish_command
1338 function itself. The only chance we have to complete this command
1339 is in fetch_inferior_event, which is called by the event loop as
1340 soon as it detects that the target has stopped. This function is
1341 called via the cmd_continuation pointer. */
1343 struct finish_command_continuation_args
1345 struct breakpoint
*breakpoint
;
1346 struct symbol
*function
;
1350 finish_command_continuation (void *arg
)
1352 struct finish_command_continuation_args
*a
= arg
;
1356 if (!ptid_equal (inferior_ptid
, null_ptid
)
1357 && target_has_execution
1358 && is_stopped (inferior_ptid
))
1359 bs
= inferior_thread ()->stop_bpstat
;
1361 if (bpstat_find_breakpoint (bs
, a
->breakpoint
) != NULL
1362 && a
->function
!= NULL
)
1364 struct type
*value_type
;
1366 value_type
= TYPE_TARGET_TYPE (SYMBOL_TYPE (a
->function
));
1368 internal_error (__FILE__
, __LINE__
,
1369 _("finish_command: function has no target type"));
1371 if (TYPE_CODE (value_type
) != TYPE_CODE_VOID
)
1372 print_return_value (SYMBOL_TYPE (a
->function
), value_type
);
1375 /* We suppress normal call of normal_stop observer and do it here so
1376 that that *stopped notification includes the return value. */
1377 /* NOTE: This is broken in non-stop mode. There is no guarantee the
1378 next stop will be in the same thread that we started doing a
1379 finish on. This suppressing (or some other replacement means)
1380 should be a thread property. */
1381 observer_notify_normal_stop (bs
);
1382 suppress_stop_observer
= 0;
1383 delete_breakpoint (a
->breakpoint
);
1387 finish_command_continuation_free_arg (void *arg
)
1389 /* NOTE: See finish_command_continuation. This would go away, if
1390 this suppressing is made a thread property. */
1391 suppress_stop_observer
= 0;
1395 /* finish_backward -- helper function for finish_command. */
1398 finish_backward (struct symbol
*function
)
1400 struct symtab_and_line sal
;
1401 struct thread_info
*tp
= inferior_thread ();
1402 struct breakpoint
*breakpoint
;
1403 struct cleanup
*old_chain
;
1404 CORE_ADDR func_addr
;
1407 if (find_pc_partial_function (get_frame_pc (get_current_frame ()),
1408 NULL
, &func_addr
, NULL
) == 0)
1409 internal_error (__FILE__
, __LINE__
,
1410 _("Finish: couldn't find function."));
1412 sal
= find_pc_line (func_addr
, 0);
1414 /* We don't need a return value. */
1415 tp
->proceed_to_finish
= 0;
1416 /* Special case: if we're sitting at the function entry point,
1417 then all we need to do is take a reverse singlestep. We
1418 don't need to set a breakpoint, and indeed it would do us
1421 Note that this can only happen at frame #0, since there's
1422 no way that a function up the stack can have a return address
1423 that's equal to its entry point. */
1425 if (sal
.pc
!= read_pc ())
1427 /* Set breakpoint and continue. */
1429 set_momentary_breakpoint (sal
,
1430 get_frame_id (get_selected_frame (NULL
)),
1432 /* Tell the breakpoint to keep quiet. We won't be done
1433 until we've done another reverse single-step. */
1434 make_breakpoint_silent (breakpoint
);
1435 old_chain
= make_cleanup_delete_breakpoint (breakpoint
);
1436 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
1437 /* We will be stopped when proceed returns. */
1438 back_up
= bpstat_find_breakpoint (tp
->stop_bpstat
, breakpoint
) != NULL
;
1439 do_cleanups (old_chain
);
1445 /* If in fact we hit the step-resume breakpoint (and not
1446 some other breakpoint), then we're almost there --
1447 we just need to back up by one more single-step. */
1448 tp
->step_range_start
= tp
->step_range_end
= 1;
1449 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
1454 /* finish_forward -- helper function for finish_command. */
1457 finish_forward (struct symbol
*function
, struct frame_info
*frame
)
1459 struct symtab_and_line sal
;
1460 struct thread_info
*tp
= inferior_thread ();
1461 struct breakpoint
*breakpoint
;
1462 struct cleanup
*old_chain
;
1463 struct finish_command_continuation_args
*cargs
;
1465 sal
= find_pc_line (get_frame_pc (frame
), 0);
1466 sal
.pc
= get_frame_pc (frame
);
1468 breakpoint
= set_momentary_breakpoint (sal
, get_frame_id (frame
),
1471 old_chain
= make_cleanup_delete_breakpoint (breakpoint
);
1473 tp
->proceed_to_finish
= 1; /* We want stop_registers, please... */
1474 make_cleanup_restore_integer (&suppress_stop_observer
);
1475 suppress_stop_observer
= 1;
1476 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
1478 cargs
= xmalloc (sizeof (*cargs
));
1480 cargs
->breakpoint
= breakpoint
;
1481 cargs
->function
= function
;
1482 add_continuation (tp
, finish_command_continuation
, cargs
,
1483 finish_command_continuation_free_arg
);
1485 discard_cleanups (old_chain
);
1486 if (!target_can_async_p ())
1487 do_all_continuations ();
1490 /* "finish": Set a temporary breakpoint at the place the selected
1491 frame will return to, then continue. */
1494 finish_command (char *arg
, int from_tty
)
1496 struct frame_info
*frame
;
1497 struct symbol
*function
;
1501 /* Find out whether we must run in the background. */
1503 async_exec
= strip_bg_char (&arg
);
1505 /* If we must run in the background, but the target can't do it,
1507 if (async_exec
&& !target_can_async_p ())
1508 error (_("Asynchronous execution not supported on this target."));
1510 /* Don't try to async in reverse. */
1511 if (async_exec
&& execution_direction
== EXEC_REVERSE
)
1512 error (_("Asynchronous 'finish' not supported in reverse."));
1514 /* If we are not asked to run in the bg, then prepare to run in the
1515 foreground, synchronously. */
1516 if (!async_exec
&& target_can_async_p ())
1518 /* Simulate synchronous execution. */
1519 async_disable_stdin ();
1523 error (_("The \"finish\" command does not take any arguments."));
1524 if (!target_has_execution
)
1525 error (_("The program is not running."));
1527 frame
= get_prev_frame (get_selected_frame (_("No selected frame.")));
1529 error (_("\"finish\" not meaningful in the outermost frame."));
1531 clear_proceed_status ();
1533 /* Find the function we will return from. */
1535 function
= find_pc_function (get_frame_pc (get_selected_frame (NULL
)));
1537 /* Print info on the selected frame, including level number but not
1541 if (execution_direction
== EXEC_REVERSE
)
1542 printf_filtered (_("Run back to call of "));
1544 printf_filtered (_("Run till exit from "));
1546 print_stack_frame (get_selected_frame (NULL
), 1, LOCATION
);
1549 if (execution_direction
== EXEC_REVERSE
)
1550 finish_backward (function
);
1552 finish_forward (function
, frame
);
1557 program_info (char *args
, int from_tty
)
1561 struct thread_info
*tp
;
1564 if (!target_has_execution
)
1566 printf_filtered (_("The program being debugged is not being run.\n"));
1571 ptid
= inferior_ptid
;
1574 struct target_waitstatus ws
;
1575 get_last_target_status (&ptid
, &ws
);
1578 if (ptid_equal (ptid
, null_ptid
) || is_exited (ptid
))
1579 error (_("Invalid selected thread."));
1580 else if (is_running (ptid
))
1581 error (_("Selected thread is running."));
1583 tp
= find_thread_pid (ptid
);
1584 bs
= tp
->stop_bpstat
;
1585 stat
= bpstat_num (&bs
, &num
);
1587 target_files_info ();
1588 printf_filtered (_("Program stopped at %s.\n"),
1589 hex_string ((unsigned long) stop_pc
));
1591 printf_filtered (_("It stopped after being stepped.\n"));
1594 /* There may be several breakpoints in the same place, so this
1595 isn't as strange as it seems. */
1600 printf_filtered (_("\
1601 It stopped at a breakpoint that has since been deleted.\n"));
1604 printf_filtered (_("It stopped at breakpoint %d.\n"), num
);
1605 stat
= bpstat_num (&bs
, &num
);
1608 else if (tp
->stop_signal
!= TARGET_SIGNAL_0
)
1610 printf_filtered (_("It stopped with signal %s, %s.\n"),
1611 target_signal_to_name (tp
->stop_signal
),
1612 target_signal_to_string (tp
->stop_signal
));
1617 printf_filtered (_("\
1618 Type \"info stack\" or \"info registers\" for more information.\n"));
1623 environment_info (char *var
, int from_tty
)
1627 char *val
= get_in_environ (inferior_environ
, var
);
1630 puts_filtered (var
);
1631 puts_filtered (" = ");
1632 puts_filtered (val
);
1633 puts_filtered ("\n");
1637 puts_filtered ("Environment variable \"");
1638 puts_filtered (var
);
1639 puts_filtered ("\" not defined.\n");
1644 char **vector
= environ_vector (inferior_environ
);
1647 puts_filtered (*vector
++);
1648 puts_filtered ("\n");
1654 set_environment_command (char *arg
, int from_tty
)
1656 char *p
, *val
, *var
;
1660 error_no_arg (_("environment variable and value"));
1662 /* Find seperation between variable name and value */
1663 p
= (char *) strchr (arg
, '=');
1664 val
= (char *) strchr (arg
, ' ');
1666 if (p
!= 0 && val
!= 0)
1668 /* We have both a space and an equals. If the space is before the
1669 equals, walk forward over the spaces til we see a nonspace
1670 (possibly the equals). */
1675 /* Now if the = is after the char following the spaces,
1676 take the char following the spaces. */
1680 else if (val
!= 0 && p
== 0)
1684 error_no_arg (_("environment variable to set"));
1686 if (p
== 0 || p
[1] == 0)
1690 p
= arg
+ strlen (arg
); /* So that savestring below will work */
1694 /* Not setting variable value to null */
1696 while (*val
== ' ' || *val
== '\t')
1700 while (p
!= arg
&& (p
[-1] == ' ' || p
[-1] == '\t'))
1703 var
= savestring (arg
, p
- arg
);
1706 printf_filtered (_("\
1707 Setting environment variable \"%s\" to null value.\n"),
1709 set_in_environ (inferior_environ
, var
, "");
1712 set_in_environ (inferior_environ
, var
, val
);
1717 unset_environment_command (char *var
, int from_tty
)
1721 /* If there is no argument, delete all environment variables.
1722 Ask for confirmation if reading from the terminal. */
1723 if (!from_tty
|| query (_("Delete all environment variables? ")))
1725 free_environ (inferior_environ
);
1726 inferior_environ
= make_environ ();
1730 unset_in_environ (inferior_environ
, var
);
1733 /* Handle the execution path (PATH variable) */
1735 static const char path_var_name
[] = "PATH";
1738 path_info (char *args
, int from_tty
)
1740 puts_filtered ("Executable and object file path: ");
1741 puts_filtered (get_in_environ (inferior_environ
, path_var_name
));
1742 puts_filtered ("\n");
1745 /* Add zero or more directories to the front of the execution path. */
1748 path_command (char *dirname
, int from_tty
)
1753 env
= get_in_environ (inferior_environ
, path_var_name
);
1754 /* Can be null if path is not set */
1757 exec_path
= xstrdup (env
);
1758 mod_path (dirname
, &exec_path
);
1759 set_in_environ (inferior_environ
, path_var_name
, exec_path
);
1762 path_info ((char *) NULL
, from_tty
);
1766 /* Print out the machine register regnum. If regnum is -1, print all
1767 registers (print_all == 1) or all non-float and non-vector
1768 registers (print_all == 0).
1770 For most machines, having all_registers_info() print the
1771 register(s) one per line is good enough. If a different format is
1772 required, (eg, for MIPS or Pyramid 90x, which both have lots of
1773 regs), or there is an existing convention for showing all the
1774 registers, define the architecture method PRINT_REGISTERS_INFO to
1775 provide that format. */
1778 default_print_registers_info (struct gdbarch
*gdbarch
,
1779 struct ui_file
*file
,
1780 struct frame_info
*frame
,
1781 int regnum
, int print_all
)
1784 const int numregs
= gdbarch_num_regs (gdbarch
)
1785 + gdbarch_num_pseudo_regs (gdbarch
);
1786 gdb_byte buffer
[MAX_REGISTER_SIZE
];
1788 for (i
= 0; i
< numregs
; i
++)
1790 /* Decide between printing all regs, non-float / vector regs, or
1796 if (!gdbarch_register_reggroup_p (gdbarch
, i
, all_reggroup
))
1801 if (!gdbarch_register_reggroup_p (gdbarch
, i
, general_reggroup
))
1811 /* If the register name is empty, it is undefined for this
1812 processor, so don't display anything. */
1813 if (gdbarch_register_name (gdbarch
, i
) == NULL
1814 || *(gdbarch_register_name (gdbarch
, i
)) == '\0')
1817 fputs_filtered (gdbarch_register_name (gdbarch
, i
), file
);
1818 print_spaces_filtered (15 - strlen (gdbarch_register_name
1819 (gdbarch
, i
)), file
);
1821 /* Get the data in raw format. */
1822 if (! frame_register_read (frame
, i
, buffer
))
1824 fprintf_filtered (file
, "*value not available*\n");
1828 /* If virtual format is floating, print it that way, and in raw
1830 if (TYPE_CODE (register_type (gdbarch
, i
)) == TYPE_CODE_FLT
1831 || TYPE_CODE (register_type (gdbarch
, i
)) == TYPE_CODE_DECFLOAT
)
1834 struct value_print_options opts
;
1836 get_user_print_options (&opts
);
1838 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1839 file
, 0, &opts
, current_language
);
1841 fprintf_filtered (file
, "\t(raw 0x");
1842 for (j
= 0; j
< register_size (gdbarch
, i
); j
++)
1845 if (gdbarch_byte_order (gdbarch
) == BFD_ENDIAN_BIG
)
1848 idx
= register_size (gdbarch
, i
) - 1 - j
;
1849 fprintf_filtered (file
, "%02x", (unsigned char) buffer
[idx
]);
1851 fprintf_filtered (file
, ")");
1855 struct value_print_options opts
;
1857 /* Print the register in hex. */
1858 get_formatted_print_options (&opts
, 'x');
1860 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1863 /* If not a vector register, print it also according to its
1865 if (TYPE_VECTOR (register_type (gdbarch
, i
)) == 0)
1867 get_user_print_options (&opts
);
1869 fprintf_filtered (file
, "\t");
1870 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1871 file
, 0, &opts
, current_language
);
1875 fprintf_filtered (file
, "\n");
1880 registers_info (char *addr_exp
, int fpregs
)
1882 struct frame_info
*frame
;
1883 struct gdbarch
*gdbarch
;
1884 int regnum
, numregs
;
1887 if (!target_has_registers
)
1888 error (_("The program has no registers now."));
1889 frame
= get_selected_frame (NULL
);
1890 gdbarch
= get_frame_arch (frame
);
1894 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
1899 while (*addr_exp
!= '\0')
1904 /* Keep skipping leading white space. */
1905 if (isspace ((*addr_exp
)))
1911 /* Discard any leading ``$''. Check that there is something
1912 resembling a register following it. */
1913 if (addr_exp
[0] == '$')
1915 if (isspace ((*addr_exp
)) || (*addr_exp
) == '\0')
1916 error (_("Missing register name"));
1918 /* Find the start/end of this register name/num/group. */
1920 while ((*addr_exp
) != '\0' && !isspace ((*addr_exp
)))
1924 /* Figure out what we've found and display it. */
1926 /* A register name? */
1928 int regnum
= user_reg_map_name_to_regnum (gdbarch
, start
, end
- start
);
1931 /* User registers lie completely outside of the range of
1932 normal registers. Catch them early so that the target
1934 if (regnum
>= gdbarch_num_regs (gdbarch
)
1935 + gdbarch_num_pseudo_regs (gdbarch
))
1937 struct value_print_options opts
;
1938 struct value
*val
= value_of_user_reg (regnum
, frame
);
1940 printf_filtered ("%s: ", start
);
1941 get_formatted_print_options (&opts
, 'x');
1942 print_scalar_formatted (value_contents (val
),
1943 check_typedef (value_type (val
)),
1944 &opts
, 0, gdb_stdout
);
1945 printf_filtered ("\n");
1948 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
1949 frame
, regnum
, fpregs
);
1954 /* A register number? (how portable is this one?). */
1957 int regnum
= strtol (start
, &endptr
, 0);
1960 && regnum
< gdbarch_num_regs (gdbarch
)
1961 + gdbarch_num_pseudo_regs (gdbarch
))
1963 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
1964 frame
, regnum
, fpregs
);
1969 /* A register group? */
1971 struct reggroup
*group
;
1972 for (group
= reggroup_next (gdbarch
, NULL
);
1974 group
= reggroup_next (gdbarch
, group
))
1976 /* Don't bother with a length check. Should the user
1977 enter a short register group name, go with the first
1978 group that matches. */
1979 if (strncmp (start
, reggroup_name (group
), end
- start
) == 0)
1986 regnum
< gdbarch_num_regs (gdbarch
)
1987 + gdbarch_num_pseudo_regs (gdbarch
);
1990 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, group
))
1991 gdbarch_print_registers_info (gdbarch
,
1999 /* Nothing matched. */
2000 error (_("Invalid register `%.*s'"), (int) (end
- start
), start
);
2005 all_registers_info (char *addr_exp
, int from_tty
)
2007 registers_info (addr_exp
, 1);
2011 nofp_registers_info (char *addr_exp
, int from_tty
)
2013 registers_info (addr_exp
, 0);
2017 print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
,
2018 struct frame_info
*frame
, const char *args
)
2020 if (gdbarch_print_vector_info_p (gdbarch
))
2021 gdbarch_print_vector_info (gdbarch
, file
, frame
, args
);
2025 int printed_something
= 0;
2028 regnum
< gdbarch_num_regs (gdbarch
)
2029 + gdbarch_num_pseudo_regs (gdbarch
);
2032 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, vector_reggroup
))
2034 printed_something
= 1;
2035 gdbarch_print_registers_info (gdbarch
, file
, frame
, regnum
, 1);
2038 if (!printed_something
)
2039 fprintf_filtered (file
, "No vector information\n");
2044 vector_info (char *args
, int from_tty
)
2046 if (!target_has_registers
)
2047 error (_("The program has no registers now."));
2049 print_vector_info (current_gdbarch
, gdb_stdout
,
2050 get_selected_frame (NULL
), args
);
2054 /* Used in `attach&' command. ARG is a point to an integer
2055 representing a process id. Proceed threads of this process iff
2056 they stopped due to debugger request, and when they did, they
2057 reported a clean stop (TARGET_SIGNAL_0). Do not proceed threads
2058 that have been explicitly been told to stop. */
2061 proceed_after_attach_callback (struct thread_info
*thread
,
2064 int pid
= * (int *) arg
;
2066 if (ptid_get_pid (thread
->ptid
) == pid
2067 && !is_exited (thread
->ptid
)
2068 && !is_executing (thread
->ptid
)
2069 && !thread
->stop_requested
2070 && thread
->stop_signal
== TARGET_SIGNAL_0
)
2072 switch_to_thread (thread
->ptid
);
2073 clear_proceed_status ();
2074 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
2081 proceed_after_attach (int pid
)
2083 /* Don't error out if the current thread is running, because
2084 there may be other stopped threads. */
2085 struct cleanup
*old_chain
;
2087 /* Backup current thread and selected frame. */
2088 old_chain
= make_cleanup_restore_current_thread ();
2090 iterate_over_threads (proceed_after_attach_callback
, &pid
);
2092 /* Restore selected ptid. */
2093 do_cleanups (old_chain
);
2098 * Should save/restore the tty state since it might be that the
2099 * program to be debugged was started on this tty and it wants
2100 * the tty in some state other than what we want. If it's running
2101 * on another terminal or without a terminal, then saving and
2102 * restoring the tty state is a harmless no-op.
2103 * This only needs to be done if we are attaching to a process.
2108 takes a program started up outside of gdb and ``attaches'' to it.
2109 This stops it cold in its tracks and allows us to start debugging it.
2110 and wait for the trace-trap that results from attaching. */
2113 attach_command_post_wait (char *args
, int from_tty
, int async_exec
)
2116 char *full_exec_path
= NULL
;
2117 struct inferior
*inferior
;
2119 inferior
= current_inferior ();
2120 inferior
->stop_soon
= NO_STOP_QUIETLY
;
2122 /* If no exec file is yet known, try to determine it from the
2124 exec_file
= (char *) get_exec_file (0);
2127 exec_file
= target_pid_to_exec_file (PIDGET (inferior_ptid
));
2130 /* It's possible we don't have a full path, but rather just a
2131 filename. Some targets, such as HP-UX, don't provide the
2134 Attempt to qualify the filename against the source path.
2135 (If that fails, we'll just fall back on the original
2136 filename. Not much more we can do...)
2138 if (!source_full_path_of (exec_file
, &full_exec_path
))
2139 full_exec_path
= savestring (exec_file
, strlen (exec_file
));
2141 exec_file_attach (full_exec_path
, from_tty
);
2142 symbol_file_add_main (full_exec_path
, from_tty
);
2147 reopen_exec_file ();
2151 /* Take any necessary post-attaching actions for this platform. */
2152 target_post_attach (PIDGET (inferior_ptid
));
2154 post_create_inferior (¤t_target
, from_tty
);
2156 /* Install inferior's terminal modes. */
2157 target_terminal_inferior ();
2161 /* The user requested an `attach&', so be sure to leave threads
2162 that didn't get a signal running. */
2164 /* Immediatelly resume all suspended threads of this inferior,
2165 and this inferior only. This should have no effect on
2166 already running threads. If a thread has been stopped with a
2167 signal, leave it be. */
2169 proceed_after_attach (inferior
->pid
);
2172 if (inferior_thread ()->stop_signal
== TARGET_SIGNAL_0
)
2174 clear_proceed_status ();
2175 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
2181 /* The user requested a plain `attach', so be sure to leave
2182 the inferior stopped. */
2184 if (target_can_async_p ())
2185 async_enable_stdin ();
2187 /* At least the current thread is already stopped. */
2189 /* In all-stop, by definition, all threads have to be already
2190 stopped at this point. In non-stop, however, although the
2191 selected thread is stopped, others may still be executing.
2192 Be sure to explicitly stop all threads of the process. This
2193 should have no effect on already stopped threads. */
2195 target_stop (pid_to_ptid (inferior
->pid
));
2197 /* Tell the user/frontend where we're stopped. */
2199 if (deprecated_attach_hook
)
2200 deprecated_attach_hook ();
2204 struct attach_command_continuation_args
2212 attach_command_continuation (void *args
)
2214 struct attach_command_continuation_args
*a
= args
;
2215 attach_command_post_wait (a
->args
, a
->from_tty
, a
->async_exec
);
2219 attach_command_continuation_free_args (void *args
)
2221 struct attach_command_continuation_args
*a
= args
;
2227 attach_command (char *args
, int from_tty
)
2230 char *full_exec_path
= NULL
;
2232 struct cleanup
*back_to
= make_cleanup (null_cleanup
, NULL
);
2234 dont_repeat (); /* Not for the faint of heart */
2236 if (target_supports_multi_process ())
2237 /* Don't complain if we can be attached to multiple processes. */
2239 else if (target_has_execution
)
2241 if (query ("A program is being debugged already. Kill it? "))
2244 error (_("Not killed."));
2247 /* Clean up any leftovers from other runs. Some other things from
2248 this function should probably be moved into target_pre_inferior. */
2249 target_pre_inferior (from_tty
);
2251 if (non_stop
&& !target_supports_non_stop ())
2252 error (_("Cannot attach to this target in non-stop mode"));
2256 async_exec
= strip_bg_char (&args
);
2258 /* If we get a request for running in the bg but the target
2259 doesn't support it, error out. */
2260 if (async_exec
&& !target_can_async_p ())
2261 error (_("Asynchronous execution not supported on this target."));
2264 /* If we don't get a request of running in the bg, then we need
2265 to simulate synchronous (fg) execution. */
2266 if (!async_exec
&& target_can_async_p ())
2268 /* Simulate synchronous execution */
2269 async_disable_stdin ();
2270 make_cleanup ((make_cleanup_ftype
*)async_enable_stdin
, NULL
);
2273 target_attach (args
, from_tty
);
2275 /* Set up the "saved terminal modes" of the inferior
2276 based on what modes we are starting it with. */
2277 target_terminal_init ();
2279 /* Set up execution context to know that we should return from
2280 wait_for_inferior as soon as the target reports a stop. */
2281 init_wait_for_inferior ();
2282 clear_proceed_status ();
2286 /* If we find that the current thread isn't stopped, explicitly
2287 do so now, because we're going to install breakpoints and
2291 /* The user requested an `attach&'; stop just one thread. */
2292 target_stop (inferior_ptid
);
2294 /* The user requested an `attach', so stop all threads of this
2296 target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid
)));
2299 /* Some system don't generate traps when attaching to inferior.
2300 E.g. Mach 3 or GNU hurd. */
2301 if (!target_attach_no_wait
)
2303 struct inferior
*inferior
= current_inferior ();
2305 /* Careful here. See comments in inferior.h. Basically some
2306 OSes don't ignore SIGSTOPs on continue requests anymore. We
2307 need a way for handle_inferior_event to reset the stop_signal
2308 variable after an attach, and this is what
2309 STOP_QUIETLY_NO_SIGSTOP is for. */
2310 inferior
->stop_soon
= STOP_QUIETLY_NO_SIGSTOP
;
2312 if (target_can_async_p ())
2314 /* sync_execution mode. Wait for stop. */
2315 struct attach_command_continuation_args
*a
;
2317 a
= xmalloc (sizeof (*a
));
2318 a
->args
= xstrdup (args
);
2319 a
->from_tty
= from_tty
;
2320 a
->async_exec
= async_exec
;
2321 add_inferior_continuation (attach_command_continuation
, a
,
2322 attach_command_continuation_free_args
);
2323 discard_cleanups (back_to
);
2327 wait_for_inferior (0);
2330 attach_command_post_wait (args
, from_tty
, async_exec
);
2331 discard_cleanups (back_to
);
2336 * takes a program previously attached to and detaches it.
2337 * The program resumes execution and will no longer stop
2338 * on signals, etc. We better not have left any breakpoints
2339 * in the program or it'll die when it hits one. For this
2340 * to work, it may be necessary for the process to have been
2341 * previously attached. It *might* work if the program was
2342 * started via the normal ptrace (PTRACE_TRACEME).
2346 detach_command (char *args
, int from_tty
)
2348 dont_repeat (); /* Not for the faint of heart. */
2349 target_detach (args
, from_tty
);
2351 /* If the solist is global across inferiors, don't clear it when we
2352 detach from a single inferior. */
2353 if (!gdbarch_has_global_solist (target_gdbarch
))
2354 no_shared_libraries (NULL
, from_tty
);
2356 /* If the current target interface claims there's still execution,
2357 then don't mess with threads of other processes. */
2358 if (!target_has_execution
)
2359 init_thread_list ();
2361 if (deprecated_detach_hook
)
2362 deprecated_detach_hook ();
2365 /* Disconnect from the current target without resuming it (leaving it
2366 waiting for a debugger).
2368 We'd better not have left any breakpoints in the program or the
2369 next debugger will get confused. Currently only supported for some
2370 remote targets, since the normal attach mechanisms don't work on
2371 stopped processes on some native platforms (e.g. GNU/Linux). */
2374 disconnect_command (char *args
, int from_tty
)
2376 dont_repeat (); /* Not for the faint of heart */
2377 target_disconnect (args
, from_tty
);
2378 no_shared_libraries (NULL
, from_tty
);
2379 init_thread_list ();
2380 if (deprecated_detach_hook
)
2381 deprecated_detach_hook ();
2385 interrupt_target_1 (int all_threads
)
2389 ptid
= minus_one_ptid
;
2391 ptid
= inferior_ptid
;
2394 /* Tag the thread as having been explicitly requested to stop, so
2395 other parts of gdb know not to resume this thread automatically,
2396 if it was stopped due to an internal event. Limit this to
2397 non-stop mode, as when debugging a multi-threaded application in
2398 all-stop mode, we will only get one stop event --- it's undefined
2399 which thread will report the event. */
2401 set_stop_requested (ptid
, 1);
2404 /* Stop the execution of the target while running in async mode, in
2405 the backgound. In all-stop, stop the whole process. In non-stop
2406 mode, stop the current thread only by default, or stop all threads
2407 if the `-a' switch is used. */
2409 /* interrupt [-a] */
2411 interrupt_target_command (char *args
, int from_tty
)
2413 if (target_can_async_p ())
2415 int all_threads
= 0;
2417 dont_repeat (); /* Not for the faint of heart */
2420 && strncmp (args
, "-a", sizeof ("-a") - 1) == 0)
2423 if (!non_stop
&& all_threads
)
2424 error (_("-a is meaningless in all-stop mode."));
2426 interrupt_target_1 (all_threads
);
2431 print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
,
2432 struct frame_info
*frame
, const char *args
)
2434 if (gdbarch_print_float_info_p (gdbarch
))
2435 gdbarch_print_float_info (gdbarch
, file
, frame
, args
);
2439 int printed_something
= 0;
2442 regnum
< gdbarch_num_regs (gdbarch
)
2443 + gdbarch_num_pseudo_regs (gdbarch
);
2446 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, float_reggroup
))
2448 printed_something
= 1;
2449 gdbarch_print_registers_info (gdbarch
, file
, frame
, regnum
, 1);
2452 if (!printed_something
)
2453 fprintf_filtered (file
, "\
2454 No floating-point info available for this processor.\n");
2459 float_info (char *args
, int from_tty
)
2461 if (!target_has_registers
)
2462 error (_("The program has no registers now."));
2464 print_float_info (current_gdbarch
, gdb_stdout
,
2465 get_selected_frame (NULL
), args
);
2469 unset_command (char *args
, int from_tty
)
2471 printf_filtered (_("\
2472 \"unset\" must be followed by the name of an unset subcommand.\n"));
2473 help_list (unsetlist
, "unset ", -1, gdb_stdout
);
2477 _initialize_infcmd (void)
2479 struct cmd_list_element
*c
= NULL
;
2481 /* add the filename of the terminal connected to inferior I/O */
2482 add_setshow_filename_cmd ("inferior-tty", class_run
,
2483 &inferior_io_terminal
, _("\
2484 Set terminal for future runs of program being debugged."), _("\
2485 Show terminal for future runs of program being debugged."), _("\
2486 Usage: set inferior-tty /dev/pts/1"), NULL
, NULL
, &setlist
, &showlist
);
2487 add_com_alias ("tty", "set inferior-tty", class_alias
, 0);
2489 add_setshow_optional_filename_cmd ("args", class_run
,
2490 &inferior_args
, _("\
2491 Set argument list to give program being debugged when it is started."), _("\
2492 Show argument list to give program being debugged when it is started."), _("\
2493 Follow this command with any number of args, to be passed to the program."),
2496 &setlist
, &showlist
);
2498 c
= add_cmd ("environment", no_class
, environment_info
, _("\
2499 The environment to give the program, or one variable's value.\n\
2500 With an argument VAR, prints the value of environment variable VAR to\n\
2501 give the program being debugged. With no arguments, prints the entire\n\
2502 environment to be given to the program."), &showlist
);
2503 set_cmd_completer (c
, noop_completer
);
2505 add_prefix_cmd ("unset", no_class
, unset_command
,
2506 _("Complement to certain \"set\" commands."),
2507 &unsetlist
, "unset ", 0, &cmdlist
);
2509 c
= add_cmd ("environment", class_run
, unset_environment_command
, _("\
2510 Cancel environment variable VAR for the program.\n\
2511 This does not affect the program until the next \"run\" command."),
2513 set_cmd_completer (c
, noop_completer
);
2515 c
= add_cmd ("environment", class_run
, set_environment_command
, _("\
2516 Set environment variable value to give the program.\n\
2517 Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\
2518 VALUES of environment variables are uninterpreted strings.\n\
2519 This does not affect the program until the next \"run\" command."),
2521 set_cmd_completer (c
, noop_completer
);
2523 c
= add_com ("path", class_files
, path_command
, _("\
2524 Add directory DIR(s) to beginning of search path for object files.\n\
2525 $cwd in the path means the current working directory.\n\
2526 This path is equivalent to the $PATH shell variable. It is a list of\n\
2527 directories, separated by colons. These directories are searched to find\n\
2528 fully linked executable files and separately compiled object files as needed."));
2529 set_cmd_completer (c
, filename_completer
);
2531 c
= add_cmd ("paths", no_class
, path_info
, _("\
2532 Current search path for finding object files.\n\
2533 $cwd in the path means the current working directory.\n\
2534 This path is equivalent to the $PATH shell variable. It is a list of\n\
2535 directories, separated by colons. These directories are searched to find\n\
2536 fully linked executable files and separately compiled object files as needed."),
2538 set_cmd_completer (c
, noop_completer
);
2540 add_com ("attach", class_run
, attach_command
, _("\
2541 Attach to a process or file outside of GDB.\n\
2542 This command attaches to another target, of the same type as your last\n\
2543 \"target\" command (\"info files\" will show your target stack).\n\
2544 The command may take as argument a process id or a device file.\n\
2545 For a process id, you must have permission to send the process a signal,\n\
2546 and it must have the same effective uid as the debugger.\n\
2547 When using \"attach\" with a process id, the debugger finds the\n\
2548 program running in the process, looking first in the current working\n\
2549 directory, or (if not found there) using the source file search path\n\
2550 (see the \"directory\" command). You can also use the \"file\" command\n\
2551 to specify the program, and to load its symbol table."));
2553 add_prefix_cmd ("detach", class_run
, detach_command
, _("\
2554 Detach a process or file previously attached.\n\
2555 If a process, it is no longer traced, and it continues its execution. If\n\
2556 you were debugging a file, the file is closed and gdb no longer accesses it."),
2557 &detachlist
, "detach ", 0, &cmdlist
);
2559 add_com ("disconnect", class_run
, disconnect_command
, _("\
2560 Disconnect from a target.\n\
2561 The target will wait for another debugger to connect. Not available for\n\
2564 add_com ("signal", class_run
, signal_command
, _("\
2565 Continue program giving it signal specified by the argument.\n\
2566 An argument of \"0\" means continue program without giving it a signal."));
2568 add_com ("stepi", class_run
, stepi_command
, _("\
2569 Step one instruction exactly.\n\
2570 Argument N means do this N times (or till program stops for another reason)."));
2571 add_com_alias ("si", "stepi", class_alias
, 0);
2573 add_com ("nexti", class_run
, nexti_command
, _("\
2574 Step one instruction, but proceed through subroutine calls.\n\
2575 Argument N means do this N times (or till program stops for another reason)."));
2576 add_com_alias ("ni", "nexti", class_alias
, 0);
2578 add_com ("finish", class_run
, finish_command
, _("\
2579 Execute until selected stack frame returns.\n\
2580 Upon return, the value returned is printed and put in the value history."));
2581 add_com_alias ("fin", "finish", class_run
, 1);
2583 add_com ("next", class_run
, next_command
, _("\
2584 Step program, proceeding through subroutine calls.\n\
2585 Like the \"step\" command as long as subroutine calls do not happen;\n\
2586 when they do, the call is treated as one instruction.\n\
2587 Argument N means do this N times (or till program stops for another reason)."));
2588 add_com_alias ("n", "next", class_run
, 1);
2590 add_com_alias ("S", "next", class_run
, 1);
2592 add_com ("step", class_run
, step_command
, _("\
2593 Step program until it reaches a different source line.\n\
2594 Argument N means do this N times (or till program stops for another reason)."));
2595 add_com_alias ("s", "step", class_run
, 1);
2597 c
= add_com ("until", class_run
, until_command
, _("\
2598 Execute until the program reaches a source line greater than the current\n\
2599 or a specified location (same args as break command) within the current frame."));
2600 set_cmd_completer (c
, location_completer
);
2601 add_com_alias ("u", "until", class_run
, 1);
2603 c
= add_com ("advance", class_run
, advance_command
, _("\
2604 Continue the program up to the given location (same form as args for break command).\n\
2605 Execution will also stop upon exit from the current stack frame."));
2606 set_cmd_completer (c
, location_completer
);
2608 c
= add_com ("jump", class_run
, jump_command
, _("\
2609 Continue program being debugged at specified line or address.\n\
2610 Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\
2611 for an address to start at."));
2612 set_cmd_completer (c
, location_completer
);
2616 c
= add_com ("go", class_run
, go_command
, _("\
2617 Usage: go <location>\n\
2618 Continue program being debugged, stopping at specified line or \n\
2620 Give as argument either LINENUM or *ADDR, where ADDR is an \n\
2621 expression for an address to start at.\n\
2622 This command is a combination of tbreak and jump."));
2623 set_cmd_completer (c
, location_completer
);
2627 add_com_alias ("g", "go", class_run
, 1);
2629 c
= add_com ("continue", class_run
, continue_command
, _("\
2630 Continue program being debugged, after signal or breakpoint.\n\
2631 If proceeding from breakpoint, a number N may be used as an argument,\n\
2632 which means to set the ignore count of that breakpoint to N - 1 (so that\n\
2633 the breakpoint won't break until the Nth time it is reached).\n\
2635 If non-stop mode is enabled, continue only the current thread,\n\
2636 otherwise all the threads in the program are continued. To \n\
2637 continue all stopped threads in non-stop mode, use the -a option.\n\
2638 Specifying -a and an ignore count simultaneously is an error."));
2639 add_com_alias ("c", "cont", class_run
, 1);
2640 add_com_alias ("fg", "cont", class_run
, 1);
2642 c
= add_com ("run", class_run
, run_command
, _("\
2643 Start debugged program. You may specify arguments to give it.\n\
2644 Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\
2645 Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\
2646 With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\
2647 To cancel previous arguments and run with no arguments,\n\
2648 use \"set args\" without arguments."));
2649 set_cmd_completer (c
, filename_completer
);
2650 add_com_alias ("r", "run", class_run
, 1);
2652 add_com ("R", class_run
, run_no_args_command
,
2653 _("Start debugged program with no arguments."));
2655 c
= add_com ("start", class_run
, start_command
, _("\
2656 Run the debugged program until the beginning of the main procedure.\n\
2657 You may specify arguments to give to your program, just as with the\n\
2658 \"run\" command."));
2659 set_cmd_completer (c
, filename_completer
);
2661 c
= add_com ("interrupt", class_run
, interrupt_target_command
,
2662 _("Interrupt the execution of the debugged program.\n\
2663 If non-stop mode is enabled, interrupt only the current thread,\n\
2664 otherwise all the threads in the program are stopped. To \n\
2665 interrupt all running threads in non-stop mode, use the -a option."));
2667 add_info ("registers", nofp_registers_info
, _("\
2668 List of integer registers and their contents, for selected stack frame.\n\
2669 Register name as argument means describe only that register."));
2670 add_info_alias ("r", "registers", 1);
2673 add_com ("lr", class_info
, nofp_registers_info
, _("\
2674 List of integer registers and their contents, for selected stack frame.\n\
2675 Register name as argument means describe only that register."));
2676 add_info ("all-registers", all_registers_info
, _("\
2677 List of all registers and their contents, for selected stack frame.\n\
2678 Register name as argument means describe only that register."));
2680 add_info ("program", program_info
,
2681 _("Execution status of the program."));
2683 add_info ("float", float_info
,
2684 _("Print the status of the floating point unit\n"));
2686 add_info ("vector", vector_info
,
2687 _("Print the status of the vector unit\n"));
2689 inferior_environ
= make_environ ();
2690 init_environ (inferior_environ
);