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 tp
->step_frame_id
= get_frame_id (frame
);
935 find_pc_line_pc_range (stop_pc
,
936 &tp
->step_range_start
, &tp
->step_range_end
);
938 /* If we have no line info, switch to stepi mode. */
939 if (tp
->step_range_end
== 0 && step_stop_if_no_debug
)
941 tp
->step_range_start
= tp
->step_range_end
= 1;
943 else if (tp
->step_range_end
== 0)
946 if (find_pc_partial_function (stop_pc
, &name
,
947 &tp
->step_range_start
,
948 &tp
->step_range_end
) == 0)
949 error (_("Cannot find bounds of current function"));
951 target_terminal_ours ();
952 printf_filtered (_("\
953 Single stepping until exit from function %s, \n\
954 which has no line number information.\n"), name
);
959 /* Say we are stepping, but stop after one insn whatever it does. */
960 tp
->step_range_start
= tp
->step_range_end
= 1;
961 if (!skip_subroutines
)
963 Don't step over function calls, not even to functions lacking
965 tp
->step_over_calls
= STEP_OVER_NONE
;
968 if (skip_subroutines
)
969 tp
->step_over_calls
= STEP_OVER_ALL
;
971 tp
->step_multi
= (count
> 1);
972 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
974 args
= xmalloc (sizeof (*args
));
975 args
->skip_subroutines
= skip_subroutines
;
976 args
->single_inst
= single_inst
;
978 args
->thread
= thread
;
979 add_intermediate_continuation (tp
, step_1_continuation
, args
, xfree
);
984 /* Continue program at specified address. */
987 jump_command (char *arg
, int from_tty
)
990 struct symtabs_and_lines sals
;
991 struct symtab_and_line sal
;
997 ensure_not_running ();
999 /* Find out whether we must run in the background. */
1001 async_exec
= strip_bg_char (&arg
);
1003 /* If we must run in the background, but the target can't do it,
1005 if (async_exec
&& !target_can_async_p ())
1006 error (_("Asynchronous execution not supported on this target."));
1009 error_no_arg (_("starting address"));
1011 sals
= decode_line_spec_1 (arg
, 1);
1012 if (sals
.nelts
!= 1)
1014 error (_("Unreasonable jump request"));
1020 if (sal
.symtab
== 0 && sal
.pc
== 0)
1021 error (_("No source file has been specified."));
1023 resolve_sal_pc (&sal
); /* May error out */
1025 /* See if we are trying to jump to another function. */
1026 fn
= get_frame_function (get_current_frame ());
1027 sfn
= find_pc_function (sal
.pc
);
1028 if (fn
!= NULL
&& sfn
!= fn
)
1030 if (!query ("Line %d is not in `%s'. Jump anyway? ", sal
.line
,
1031 SYMBOL_PRINT_NAME (fn
)))
1033 error (_("Not confirmed."));
1040 fixup_symbol_section (sfn
, 0);
1041 if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn
)) &&
1042 !section_is_mapped (SYMBOL_OBJ_SECTION (sfn
)))
1044 if (!query ("WARNING!!! Destination is in unmapped overlay! Jump anyway? "))
1046 error (_("Not confirmed."));
1056 printf_filtered (_("Continuing at "));
1057 fputs_filtered (paddress (addr
), gdb_stdout
);
1058 printf_filtered (".\n");
1061 /* If we are not asked to run in the bg, then prepare to run in the
1062 foreground, synchronously. */
1063 if (!async_exec
&& target_can_async_p ())
1065 /* Simulate synchronous execution */
1066 async_disable_stdin ();
1069 clear_proceed_status ();
1070 proceed (addr
, TARGET_SIGNAL_0
, 0);
1074 /* Go to line or address in current procedure */
1076 go_command (char *line_no
, int from_tty
)
1078 if (line_no
== (char *) NULL
|| !*line_no
)
1079 printf_filtered (_("Usage: go <location>\n"));
1082 tbreak_command (line_no
, from_tty
);
1083 jump_command (line_no
, from_tty
);
1088 /* Continue program giving it specified signal. */
1091 signal_command (char *signum_exp
, int from_tty
)
1093 enum target_signal oursig
;
1096 dont_repeat (); /* Too dangerous. */
1098 ensure_not_running ();
1100 /* Find out whether we must run in the background. */
1101 if (signum_exp
!= NULL
)
1102 async_exec
= strip_bg_char (&signum_exp
);
1104 /* If we must run in the background, but the target can't do it,
1106 if (async_exec
&& !target_can_async_p ())
1107 error (_("Asynchronous execution not supported on this target."));
1109 /* If we are not asked to run in the bg, then prepare to run in the
1110 foreground, synchronously. */
1111 if (!async_exec
&& target_can_async_p ())
1113 /* Simulate synchronous execution. */
1114 async_disable_stdin ();
1118 error_no_arg (_("signal number"));
1120 /* It would be even slicker to make signal names be valid expressions,
1121 (the type could be "enum $signal" or some such), then the user could
1122 assign them to convenience variables. */
1123 oursig
= target_signal_from_name (signum_exp
);
1125 if (oursig
== TARGET_SIGNAL_UNKNOWN
)
1127 /* No, try numeric. */
1128 int num
= parse_and_eval_long (signum_exp
);
1131 oursig
= TARGET_SIGNAL_0
;
1133 oursig
= target_signal_from_command (num
);
1138 if (oursig
== TARGET_SIGNAL_0
)
1139 printf_filtered (_("Continuing with no signal.\n"));
1141 printf_filtered (_("Continuing with signal %s.\n"),
1142 target_signal_to_name (oursig
));
1145 clear_proceed_status ();
1146 /* "signal 0" should not get stuck if we are stopped at a breakpoint.
1147 FIXME: Neither should "signal foo" but when I tried passing
1148 (CORE_ADDR)-1 unconditionally I got a testsuite failure which I haven't
1149 tried to track down yet. */
1150 proceed (oursig
== TARGET_SIGNAL_0
? (CORE_ADDR
) -1 : stop_pc
, oursig
, 0);
1153 /* Proceed until we reach a different source line with pc greater than
1154 our current one or exit the function. We skip calls in both cases.
1156 Note that eventually this command should probably be changed so
1157 that only source lines are printed out when we hit the breakpoint
1158 we set. This may involve changes to wait_for_inferior and the
1159 proceed status code. */
1162 until_next_command (int from_tty
)
1164 struct frame_info
*frame
;
1166 struct symbol
*func
;
1167 struct symtab_and_line sal
;
1168 struct thread_info
*tp
= inferior_thread ();
1170 clear_proceed_status ();
1172 frame
= get_current_frame ();
1174 /* Step until either exited from this function or greater
1175 than the current line (if in symbolic section) or pc (if
1179 func
= find_pc_function (pc
);
1183 struct minimal_symbol
*msymbol
= lookup_minimal_symbol_by_pc (pc
);
1185 if (msymbol
== NULL
)
1186 error (_("Execution is not within a known function."));
1188 tp
->step_range_start
= SYMBOL_VALUE_ADDRESS (msymbol
);
1189 tp
->step_range_end
= pc
;
1193 sal
= find_pc_line (pc
, 0);
1195 tp
->step_range_start
= BLOCK_START (SYMBOL_BLOCK_VALUE (func
));
1196 tp
->step_range_end
= sal
.end
;
1199 tp
->step_over_calls
= STEP_OVER_ALL
;
1200 tp
->step_frame_id
= get_frame_id (frame
);
1202 tp
->step_multi
= 0; /* Only one call to proceed */
1204 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
1208 until_command (char *arg
, int from_tty
)
1212 if (!target_has_execution
)
1213 error (_("The program is not running."));
1215 /* Find out whether we must run in the background. */
1217 async_exec
= strip_bg_char (&arg
);
1219 /* If we must run in the background, but the target can't do it,
1221 if (async_exec
&& !target_can_async_p ())
1222 error (_("Asynchronous execution not supported on this target."));
1224 /* If we are not asked to run in the bg, then prepare to run in the
1225 foreground, synchronously. */
1226 if (!async_exec
&& target_can_async_p ())
1228 /* Simulate synchronous execution */
1229 async_disable_stdin ();
1233 until_break_command (arg
, from_tty
, 0);
1235 until_next_command (from_tty
);
1239 advance_command (char *arg
, int from_tty
)
1243 if (!target_has_execution
)
1244 error (_("The program is not running."));
1247 error_no_arg (_("a location"));
1249 /* Find out whether we must run in the background. */
1251 async_exec
= strip_bg_char (&arg
);
1253 /* If we must run in the background, but the target can't do it,
1255 if (async_exec
&& !target_can_async_p ())
1256 error (_("Asynchronous execution not supported on this target."));
1258 /* If we are not asked to run in the bg, then prepare to run in the
1259 foreground, synchronously. */
1260 if (!async_exec
&& target_can_async_p ())
1262 /* Simulate synchronous execution. */
1263 async_disable_stdin ();
1266 until_break_command (arg
, from_tty
, 1);
1269 /* Print the result of a function at the end of a 'finish' command. */
1272 print_return_value (struct type
*func_type
, struct type
*value_type
)
1274 struct gdbarch
*gdbarch
= current_gdbarch
;
1275 struct cleanup
*old_chain
;
1276 struct ui_stream
*stb
;
1277 struct value
*value
;
1279 CHECK_TYPEDEF (value_type
);
1280 gdb_assert (TYPE_CODE (value_type
) != TYPE_CODE_VOID
);
1282 /* FIXME: 2003-09-27: When returning from a nested inferior function
1283 call, it's possible (with no help from the architecture vector)
1284 to locate and return/print a "struct return" value. This is just
1285 a more complicated case of what is already being done in in the
1286 inferior function call code. In fact, when inferior function
1287 calls are made async, this will likely be made the norm. */
1289 switch (gdbarch_return_value (gdbarch
, func_type
, value_type
,
1292 case RETURN_VALUE_REGISTER_CONVENTION
:
1293 case RETURN_VALUE_ABI_RETURNS_ADDRESS
:
1294 case RETURN_VALUE_ABI_PRESERVES_ADDRESS
:
1295 value
= allocate_value (value_type
);
1296 gdbarch_return_value (gdbarch
, func_type
, value_type
, stop_registers
,
1297 value_contents_raw (value
), NULL
);
1299 case RETURN_VALUE_STRUCT_CONVENTION
:
1303 internal_error (__FILE__
, __LINE__
, _("bad switch"));
1308 struct value_print_options opts
;
1311 stb
= ui_out_stream_new (uiout
);
1312 old_chain
= make_cleanup_ui_out_stream_delete (stb
);
1313 ui_out_text (uiout
, "Value returned is ");
1314 ui_out_field_fmt (uiout
, "gdb-result-var", "$%d",
1315 record_latest_value (value
));
1316 ui_out_text (uiout
, " = ");
1317 get_raw_print_options (&opts
);
1318 value_print (value
, stb
->stream
, &opts
);
1319 ui_out_field_stream (uiout
, "return-value", stb
);
1320 ui_out_text (uiout
, "\n");
1321 do_cleanups (old_chain
);
1325 ui_out_text (uiout
, "Value returned has type: ");
1326 ui_out_field_string (uiout
, "return-type", TYPE_NAME (value_type
));
1327 ui_out_text (uiout
, ".");
1328 ui_out_text (uiout
, " Cannot determine contents\n");
1332 /* Stuff that needs to be done by the finish command after the target
1333 has stopped. In asynchronous mode, we wait for the target to stop
1334 in the call to poll or select in the event loop, so it is
1335 impossible to do all the stuff as part of the finish_command
1336 function itself. The only chance we have to complete this command
1337 is in fetch_inferior_event, which is called by the event loop as
1338 soon as it detects that the target has stopped. This function is
1339 called via the cmd_continuation pointer. */
1341 struct finish_command_continuation_args
1343 struct breakpoint
*breakpoint
;
1344 struct symbol
*function
;
1348 finish_command_continuation (void *arg
)
1350 struct finish_command_continuation_args
*a
= arg
;
1354 if (!ptid_equal (inferior_ptid
, null_ptid
)
1355 && target_has_execution
1356 && is_stopped (inferior_ptid
))
1357 bs
= inferior_thread ()->stop_bpstat
;
1359 if (bpstat_find_breakpoint (bs
, a
->breakpoint
) != NULL
1360 && a
->function
!= NULL
)
1362 struct type
*value_type
;
1364 value_type
= TYPE_TARGET_TYPE (SYMBOL_TYPE (a
->function
));
1366 internal_error (__FILE__
, __LINE__
,
1367 _("finish_command: function has no target type"));
1369 if (TYPE_CODE (value_type
) != TYPE_CODE_VOID
)
1370 print_return_value (SYMBOL_TYPE (a
->function
), value_type
);
1373 /* We suppress normal call of normal_stop observer and do it here so
1374 that that *stopped notification includes the return value. */
1375 /* NOTE: This is broken in non-stop mode. There is no guarantee the
1376 next stop will be in the same thread that we started doing a
1377 finish on. This suppressing (or some other replacement means)
1378 should be a thread property. */
1379 observer_notify_normal_stop (bs
);
1380 suppress_stop_observer
= 0;
1381 delete_breakpoint (a
->breakpoint
);
1385 finish_command_continuation_free_arg (void *arg
)
1387 /* NOTE: See finish_command_continuation. This would go away, if
1388 this suppressing is made a thread property. */
1389 suppress_stop_observer
= 0;
1393 /* finish_backward -- helper function for finish_command. */
1396 finish_backward (struct symbol
*function
)
1398 struct symtab_and_line sal
;
1399 struct thread_info
*tp
= inferior_thread ();
1400 struct breakpoint
*breakpoint
;
1401 struct cleanup
*old_chain
;
1402 CORE_ADDR func_addr
;
1405 if (find_pc_partial_function (get_frame_pc (get_current_frame ()),
1406 NULL
, &func_addr
, NULL
) == 0)
1407 internal_error (__FILE__
, __LINE__
,
1408 _("Finish: couldn't find function."));
1410 sal
= find_pc_line (func_addr
, 0);
1412 /* We don't need a return value. */
1413 tp
->proceed_to_finish
= 0;
1414 /* Special case: if we're sitting at the function entry point,
1415 then all we need to do is take a reverse singlestep. We
1416 don't need to set a breakpoint, and indeed it would do us
1419 Note that this can only happen at frame #0, since there's
1420 no way that a function up the stack can have a return address
1421 that's equal to its entry point. */
1423 if (sal
.pc
!= read_pc ())
1425 /* Set breakpoint and continue. */
1427 set_momentary_breakpoint (sal
,
1428 get_frame_id (get_selected_frame (NULL
)),
1430 /* Tell the breakpoint to keep quiet. We won't be done
1431 until we've done another reverse single-step. */
1432 make_breakpoint_silent (breakpoint
);
1433 old_chain
= make_cleanup_delete_breakpoint (breakpoint
);
1434 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
1435 /* We will be stopped when proceed returns. */
1436 back_up
= bpstat_find_breakpoint (tp
->stop_bpstat
, breakpoint
) != NULL
;
1437 do_cleanups (old_chain
);
1443 /* If in fact we hit the step-resume breakpoint (and not
1444 some other breakpoint), then we're almost there --
1445 we just need to back up by one more single-step. */
1446 tp
->step_range_start
= tp
->step_range_end
= 1;
1447 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
1452 /* finish_forward -- helper function for finish_command. */
1455 finish_forward (struct symbol
*function
, struct frame_info
*frame
)
1457 struct symtab_and_line sal
;
1458 struct thread_info
*tp
= inferior_thread ();
1459 struct breakpoint
*breakpoint
;
1460 struct cleanup
*old_chain
;
1461 struct finish_command_continuation_args
*cargs
;
1463 sal
= find_pc_line (get_frame_pc (frame
), 0);
1464 sal
.pc
= get_frame_pc (frame
);
1466 breakpoint
= set_momentary_breakpoint (sal
, get_frame_id (frame
),
1469 old_chain
= make_cleanup_delete_breakpoint (breakpoint
);
1471 tp
->proceed_to_finish
= 1; /* We want stop_registers, please... */
1472 make_cleanup_restore_integer (&suppress_stop_observer
);
1473 suppress_stop_observer
= 1;
1474 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
1476 cargs
= xmalloc (sizeof (*cargs
));
1478 cargs
->breakpoint
= breakpoint
;
1479 cargs
->function
= function
;
1480 add_continuation (tp
, finish_command_continuation
, cargs
,
1481 finish_command_continuation_free_arg
);
1483 discard_cleanups (old_chain
);
1484 if (!target_can_async_p ())
1485 do_all_continuations ();
1488 /* "finish": Set a temporary breakpoint at the place the selected
1489 frame will return to, then continue. */
1492 finish_command (char *arg
, int from_tty
)
1494 struct frame_info
*frame
;
1495 struct symbol
*function
;
1499 /* Find out whether we must run in the background. */
1501 async_exec
= strip_bg_char (&arg
);
1503 /* If we must run in the background, but the target can't do it,
1505 if (async_exec
&& !target_can_async_p ())
1506 error (_("Asynchronous execution not supported on this target."));
1508 /* Don't try to async in reverse. */
1509 if (async_exec
&& execution_direction
== EXEC_REVERSE
)
1510 error (_("Asynchronous 'finish' not supported in reverse."));
1512 /* If we are not asked to run in the bg, then prepare to run in the
1513 foreground, synchronously. */
1514 if (!async_exec
&& target_can_async_p ())
1516 /* Simulate synchronous execution. */
1517 async_disable_stdin ();
1521 error (_("The \"finish\" command does not take any arguments."));
1522 if (!target_has_execution
)
1523 error (_("The program is not running."));
1525 frame
= get_prev_frame (get_selected_frame (_("No selected frame.")));
1527 error (_("\"finish\" not meaningful in the outermost frame."));
1529 clear_proceed_status ();
1531 /* Find the function we will return from. */
1533 function
= find_pc_function (get_frame_pc (get_selected_frame (NULL
)));
1535 /* Print info on the selected frame, including level number but not
1539 if (execution_direction
== EXEC_REVERSE
)
1540 printf_filtered (_("Run back to call of "));
1542 printf_filtered (_("Run till exit from "));
1544 print_stack_frame (get_selected_frame (NULL
), 1, LOCATION
);
1547 if (execution_direction
== EXEC_REVERSE
)
1548 finish_backward (function
);
1550 finish_forward (function
, frame
);
1555 program_info (char *args
, int from_tty
)
1559 struct thread_info
*tp
;
1562 if (!target_has_execution
)
1564 printf_filtered (_("The program being debugged is not being run.\n"));
1569 ptid
= inferior_ptid
;
1572 struct target_waitstatus ws
;
1573 get_last_target_status (&ptid
, &ws
);
1576 if (ptid_equal (ptid
, null_ptid
) || is_exited (ptid
))
1577 error (_("Invalid selected thread."));
1578 else if (is_running (ptid
))
1579 error (_("Selected thread is running."));
1581 tp
= find_thread_pid (ptid
);
1582 bs
= tp
->stop_bpstat
;
1583 stat
= bpstat_num (&bs
, &num
);
1585 target_files_info ();
1586 printf_filtered (_("Program stopped at %s.\n"),
1587 hex_string ((unsigned long) stop_pc
));
1589 printf_filtered (_("It stopped after being stepped.\n"));
1592 /* There may be several breakpoints in the same place, so this
1593 isn't as strange as it seems. */
1598 printf_filtered (_("\
1599 It stopped at a breakpoint that has since been deleted.\n"));
1602 printf_filtered (_("It stopped at breakpoint %d.\n"), num
);
1603 stat
= bpstat_num (&bs
, &num
);
1606 else if (tp
->stop_signal
!= TARGET_SIGNAL_0
)
1608 printf_filtered (_("It stopped with signal %s, %s.\n"),
1609 target_signal_to_name (tp
->stop_signal
),
1610 target_signal_to_string (tp
->stop_signal
));
1615 printf_filtered (_("\
1616 Type \"info stack\" or \"info registers\" for more information.\n"));
1621 environment_info (char *var
, int from_tty
)
1625 char *val
= get_in_environ (inferior_environ
, var
);
1628 puts_filtered (var
);
1629 puts_filtered (" = ");
1630 puts_filtered (val
);
1631 puts_filtered ("\n");
1635 puts_filtered ("Environment variable \"");
1636 puts_filtered (var
);
1637 puts_filtered ("\" not defined.\n");
1642 char **vector
= environ_vector (inferior_environ
);
1645 puts_filtered (*vector
++);
1646 puts_filtered ("\n");
1652 set_environment_command (char *arg
, int from_tty
)
1654 char *p
, *val
, *var
;
1658 error_no_arg (_("environment variable and value"));
1660 /* Find seperation between variable name and value */
1661 p
= (char *) strchr (arg
, '=');
1662 val
= (char *) strchr (arg
, ' ');
1664 if (p
!= 0 && val
!= 0)
1666 /* We have both a space and an equals. If the space is before the
1667 equals, walk forward over the spaces til we see a nonspace
1668 (possibly the equals). */
1673 /* Now if the = is after the char following the spaces,
1674 take the char following the spaces. */
1678 else if (val
!= 0 && p
== 0)
1682 error_no_arg (_("environment variable to set"));
1684 if (p
== 0 || p
[1] == 0)
1688 p
= arg
+ strlen (arg
); /* So that savestring below will work */
1692 /* Not setting variable value to null */
1694 while (*val
== ' ' || *val
== '\t')
1698 while (p
!= arg
&& (p
[-1] == ' ' || p
[-1] == '\t'))
1701 var
= savestring (arg
, p
- arg
);
1704 printf_filtered (_("\
1705 Setting environment variable \"%s\" to null value.\n"),
1707 set_in_environ (inferior_environ
, var
, "");
1710 set_in_environ (inferior_environ
, var
, val
);
1715 unset_environment_command (char *var
, int from_tty
)
1719 /* If there is no argument, delete all environment variables.
1720 Ask for confirmation if reading from the terminal. */
1721 if (!from_tty
|| query (_("Delete all environment variables? ")))
1723 free_environ (inferior_environ
);
1724 inferior_environ
= make_environ ();
1728 unset_in_environ (inferior_environ
, var
);
1731 /* Handle the execution path (PATH variable) */
1733 static const char path_var_name
[] = "PATH";
1736 path_info (char *args
, int from_tty
)
1738 puts_filtered ("Executable and object file path: ");
1739 puts_filtered (get_in_environ (inferior_environ
, path_var_name
));
1740 puts_filtered ("\n");
1743 /* Add zero or more directories to the front of the execution path. */
1746 path_command (char *dirname
, int from_tty
)
1751 env
= get_in_environ (inferior_environ
, path_var_name
);
1752 /* Can be null if path is not set */
1755 exec_path
= xstrdup (env
);
1756 mod_path (dirname
, &exec_path
);
1757 set_in_environ (inferior_environ
, path_var_name
, exec_path
);
1760 path_info ((char *) NULL
, from_tty
);
1764 /* Print out the machine register regnum. If regnum is -1, print all
1765 registers (print_all == 1) or all non-float and non-vector
1766 registers (print_all == 0).
1768 For most machines, having all_registers_info() print the
1769 register(s) one per line is good enough. If a different format is
1770 required, (eg, for MIPS or Pyramid 90x, which both have lots of
1771 regs), or there is an existing convention for showing all the
1772 registers, define the architecture method PRINT_REGISTERS_INFO to
1773 provide that format. */
1776 default_print_registers_info (struct gdbarch
*gdbarch
,
1777 struct ui_file
*file
,
1778 struct frame_info
*frame
,
1779 int regnum
, int print_all
)
1782 const int numregs
= gdbarch_num_regs (gdbarch
)
1783 + gdbarch_num_pseudo_regs (gdbarch
);
1784 gdb_byte buffer
[MAX_REGISTER_SIZE
];
1786 for (i
= 0; i
< numregs
; i
++)
1788 /* Decide between printing all regs, non-float / vector regs, or
1794 if (!gdbarch_register_reggroup_p (gdbarch
, i
, all_reggroup
))
1799 if (!gdbarch_register_reggroup_p (gdbarch
, i
, general_reggroup
))
1809 /* If the register name is empty, it is undefined for this
1810 processor, so don't display anything. */
1811 if (gdbarch_register_name (gdbarch
, i
) == NULL
1812 || *(gdbarch_register_name (gdbarch
, i
)) == '\0')
1815 fputs_filtered (gdbarch_register_name (gdbarch
, i
), file
);
1816 print_spaces_filtered (15 - strlen (gdbarch_register_name
1817 (gdbarch
, i
)), file
);
1819 /* Get the data in raw format. */
1820 if (! frame_register_read (frame
, i
, buffer
))
1822 fprintf_filtered (file
, "*value not available*\n");
1826 /* If virtual format is floating, print it that way, and in raw
1828 if (TYPE_CODE (register_type (gdbarch
, i
)) == TYPE_CODE_FLT
1829 || TYPE_CODE (register_type (gdbarch
, i
)) == TYPE_CODE_DECFLOAT
)
1832 struct value_print_options opts
;
1834 get_user_print_options (&opts
);
1836 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1837 file
, 0, &opts
, current_language
);
1839 fprintf_filtered (file
, "\t(raw 0x");
1840 for (j
= 0; j
< register_size (gdbarch
, i
); j
++)
1843 if (gdbarch_byte_order (gdbarch
) == BFD_ENDIAN_BIG
)
1846 idx
= register_size (gdbarch
, i
) - 1 - j
;
1847 fprintf_filtered (file
, "%02x", (unsigned char) buffer
[idx
]);
1849 fprintf_filtered (file
, ")");
1853 struct value_print_options opts
;
1855 /* Print the register in hex. */
1856 get_formatted_print_options (&opts
, 'x');
1858 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1861 /* If not a vector register, print it also according to its
1863 if (TYPE_VECTOR (register_type (gdbarch
, i
)) == 0)
1865 get_user_print_options (&opts
);
1867 fprintf_filtered (file
, "\t");
1868 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1869 file
, 0, &opts
, current_language
);
1873 fprintf_filtered (file
, "\n");
1878 registers_info (char *addr_exp
, int fpregs
)
1880 struct frame_info
*frame
;
1881 struct gdbarch
*gdbarch
;
1882 int regnum
, numregs
;
1885 if (!target_has_registers
)
1886 error (_("The program has no registers now."));
1887 frame
= get_selected_frame (NULL
);
1888 gdbarch
= get_frame_arch (frame
);
1892 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
1897 while (*addr_exp
!= '\0')
1902 /* Keep skipping leading white space. */
1903 if (isspace ((*addr_exp
)))
1909 /* Discard any leading ``$''. Check that there is something
1910 resembling a register following it. */
1911 if (addr_exp
[0] == '$')
1913 if (isspace ((*addr_exp
)) || (*addr_exp
) == '\0')
1914 error (_("Missing register name"));
1916 /* Find the start/end of this register name/num/group. */
1918 while ((*addr_exp
) != '\0' && !isspace ((*addr_exp
)))
1922 /* Figure out what we've found and display it. */
1924 /* A register name? */
1926 int regnum
= user_reg_map_name_to_regnum (gdbarch
, start
, end
- start
);
1929 /* User registers lie completely outside of the range of
1930 normal registers. Catch them early so that the target
1932 if (regnum
>= gdbarch_num_regs (gdbarch
)
1933 + gdbarch_num_pseudo_regs (gdbarch
))
1935 struct value_print_options opts
;
1936 struct value
*val
= value_of_user_reg (regnum
, frame
);
1938 printf_filtered ("%s: ", start
);
1939 get_formatted_print_options (&opts
, 'x');
1940 print_scalar_formatted (value_contents (val
),
1941 check_typedef (value_type (val
)),
1942 &opts
, 0, gdb_stdout
);
1943 printf_filtered ("\n");
1946 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
1947 frame
, regnum
, fpregs
);
1952 /* A register number? (how portable is this one?). */
1955 int regnum
= strtol (start
, &endptr
, 0);
1958 && regnum
< gdbarch_num_regs (gdbarch
)
1959 + gdbarch_num_pseudo_regs (gdbarch
))
1961 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
1962 frame
, regnum
, fpregs
);
1967 /* A register group? */
1969 struct reggroup
*group
;
1970 for (group
= reggroup_next (gdbarch
, NULL
);
1972 group
= reggroup_next (gdbarch
, group
))
1974 /* Don't bother with a length check. Should the user
1975 enter a short register group name, go with the first
1976 group that matches. */
1977 if (strncmp (start
, reggroup_name (group
), end
- start
) == 0)
1984 regnum
< gdbarch_num_regs (gdbarch
)
1985 + gdbarch_num_pseudo_regs (gdbarch
);
1988 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, group
))
1989 gdbarch_print_registers_info (gdbarch
,
1997 /* Nothing matched. */
1998 error (_("Invalid register `%.*s'"), (int) (end
- start
), start
);
2003 all_registers_info (char *addr_exp
, int from_tty
)
2005 registers_info (addr_exp
, 1);
2009 nofp_registers_info (char *addr_exp
, int from_tty
)
2011 registers_info (addr_exp
, 0);
2015 print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
,
2016 struct frame_info
*frame
, const char *args
)
2018 if (gdbarch_print_vector_info_p (gdbarch
))
2019 gdbarch_print_vector_info (gdbarch
, file
, frame
, args
);
2023 int printed_something
= 0;
2026 regnum
< gdbarch_num_regs (gdbarch
)
2027 + gdbarch_num_pseudo_regs (gdbarch
);
2030 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, vector_reggroup
))
2032 printed_something
= 1;
2033 gdbarch_print_registers_info (gdbarch
, file
, frame
, regnum
, 1);
2036 if (!printed_something
)
2037 fprintf_filtered (file
, "No vector information\n");
2042 vector_info (char *args
, int from_tty
)
2044 if (!target_has_registers
)
2045 error (_("The program has no registers now."));
2047 print_vector_info (current_gdbarch
, gdb_stdout
,
2048 get_selected_frame (NULL
), args
);
2052 /* Used in `attach&' command. ARG is a point to an integer
2053 representing a process id. Proceed threads of this process iff
2054 they stopped due to debugger request, and when they did, they
2055 reported a clean stop (TARGET_SIGNAL_0). Do not proceed threads
2056 that have been explicitly been told to stop. */
2059 proceed_after_attach_callback (struct thread_info
*thread
,
2062 int pid
= * (int *) arg
;
2064 if (ptid_get_pid (thread
->ptid
) == pid
2065 && !is_exited (thread
->ptid
)
2066 && !is_executing (thread
->ptid
)
2067 && !thread
->stop_requested
2068 && thread
->stop_signal
== TARGET_SIGNAL_0
)
2070 switch_to_thread (thread
->ptid
);
2071 clear_proceed_status ();
2072 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
2079 proceed_after_attach (int pid
)
2081 /* Don't error out if the current thread is running, because
2082 there may be other stopped threads. */
2083 struct cleanup
*old_chain
;
2085 /* Backup current thread and selected frame. */
2086 old_chain
= make_cleanup_restore_current_thread ();
2088 iterate_over_threads (proceed_after_attach_callback
, &pid
);
2090 /* Restore selected ptid. */
2091 do_cleanups (old_chain
);
2096 * Should save/restore the tty state since it might be that the
2097 * program to be debugged was started on this tty and it wants
2098 * the tty in some state other than what we want. If it's running
2099 * on another terminal or without a terminal, then saving and
2100 * restoring the tty state is a harmless no-op.
2101 * This only needs to be done if we are attaching to a process.
2106 takes a program started up outside of gdb and ``attaches'' to it.
2107 This stops it cold in its tracks and allows us to start debugging it.
2108 and wait for the trace-trap that results from attaching. */
2111 attach_command_post_wait (char *args
, int from_tty
, int async_exec
)
2114 char *full_exec_path
= NULL
;
2115 struct inferior
*inferior
;
2117 inferior
= current_inferior ();
2118 inferior
->stop_soon
= NO_STOP_QUIETLY
;
2120 /* If no exec file is yet known, try to determine it from the
2122 exec_file
= (char *) get_exec_file (0);
2125 exec_file
= target_pid_to_exec_file (PIDGET (inferior_ptid
));
2128 /* It's possible we don't have a full path, but rather just a
2129 filename. Some targets, such as HP-UX, don't provide the
2132 Attempt to qualify the filename against the source path.
2133 (If that fails, we'll just fall back on the original
2134 filename. Not much more we can do...)
2136 if (!source_full_path_of (exec_file
, &full_exec_path
))
2137 full_exec_path
= savestring (exec_file
, strlen (exec_file
));
2139 exec_file_attach (full_exec_path
, from_tty
);
2140 symbol_file_add_main (full_exec_path
, from_tty
);
2145 reopen_exec_file ();
2149 /* Take any necessary post-attaching actions for this platform. */
2150 target_post_attach (PIDGET (inferior_ptid
));
2152 post_create_inferior (¤t_target
, from_tty
);
2154 /* Install inferior's terminal modes. */
2155 target_terminal_inferior ();
2159 /* The user requested an `attach&', so be sure to leave threads
2160 that didn't get a signal running. */
2162 /* Immediatelly resume all suspended threads of this inferior,
2163 and this inferior only. This should have no effect on
2164 already running threads. If a thread has been stopped with a
2165 signal, leave it be. */
2167 proceed_after_attach (inferior
->pid
);
2170 if (inferior_thread ()->stop_signal
== TARGET_SIGNAL_0
)
2172 clear_proceed_status ();
2173 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
2179 /* The user requested a plain `attach', so be sure to leave
2180 the inferior stopped. */
2182 if (target_can_async_p ())
2183 async_enable_stdin ();
2185 /* At least the current thread is already stopped. */
2187 /* In all-stop, by definition, all threads have to be already
2188 stopped at this point. In non-stop, however, although the
2189 selected thread is stopped, others may still be executing.
2190 Be sure to explicitly stop all threads of the process. This
2191 should have no effect on already stopped threads. */
2193 target_stop (pid_to_ptid (inferior
->pid
));
2195 /* Tell the user/frontend where we're stopped. */
2197 if (deprecated_attach_hook
)
2198 deprecated_attach_hook ();
2202 struct attach_command_continuation_args
2210 attach_command_continuation (void *args
)
2212 struct attach_command_continuation_args
*a
= args
;
2213 attach_command_post_wait (a
->args
, a
->from_tty
, a
->async_exec
);
2217 attach_command_continuation_free_args (void *args
)
2219 struct attach_command_continuation_args
*a
= args
;
2225 attach_command (char *args
, int from_tty
)
2228 char *full_exec_path
= NULL
;
2230 struct cleanup
*back_to
= make_cleanup (null_cleanup
, NULL
);
2232 dont_repeat (); /* Not for the faint of heart */
2234 if (target_supports_multi_process ())
2235 /* Don't complain if we can be attached to multiple processes. */
2237 else if (target_has_execution
)
2239 if (query ("A program is being debugged already. Kill it? "))
2242 error (_("Not killed."));
2245 /* Clean up any leftovers from other runs. Some other things from
2246 this function should probably be moved into target_pre_inferior. */
2247 target_pre_inferior (from_tty
);
2249 if (non_stop
&& !target_supports_non_stop ())
2250 error (_("Cannot attach to this target in non-stop mode"));
2254 async_exec
= strip_bg_char (&args
);
2256 /* If we get a request for running in the bg but the target
2257 doesn't support it, error out. */
2258 if (async_exec
&& !target_can_async_p ())
2259 error (_("Asynchronous execution not supported on this target."));
2262 /* If we don't get a request of running in the bg, then we need
2263 to simulate synchronous (fg) execution. */
2264 if (!async_exec
&& target_can_async_p ())
2266 /* Simulate synchronous execution */
2267 async_disable_stdin ();
2268 make_cleanup ((make_cleanup_ftype
*)async_enable_stdin
, NULL
);
2271 target_attach (args
, from_tty
);
2273 /* Set up the "saved terminal modes" of the inferior
2274 based on what modes we are starting it with. */
2275 target_terminal_init ();
2277 /* Set up execution context to know that we should return from
2278 wait_for_inferior as soon as the target reports a stop. */
2279 init_wait_for_inferior ();
2280 clear_proceed_status ();
2284 /* If we find that the current thread isn't stopped, explicitly
2285 do so now, because we're going to install breakpoints and
2289 /* The user requested an `attach&'; stop just one thread. */
2290 target_stop (inferior_ptid
);
2292 /* The user requested an `attach', so stop all threads of this
2294 target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid
)));
2297 /* Some system don't generate traps when attaching to inferior.
2298 E.g. Mach 3 or GNU hurd. */
2299 if (!target_attach_no_wait
)
2301 struct inferior
*inferior
= current_inferior ();
2303 /* Careful here. See comments in inferior.h. Basically some
2304 OSes don't ignore SIGSTOPs on continue requests anymore. We
2305 need a way for handle_inferior_event to reset the stop_signal
2306 variable after an attach, and this is what
2307 STOP_QUIETLY_NO_SIGSTOP is for. */
2308 inferior
->stop_soon
= STOP_QUIETLY_NO_SIGSTOP
;
2310 if (target_can_async_p ())
2312 /* sync_execution mode. Wait for stop. */
2313 struct attach_command_continuation_args
*a
;
2315 a
= xmalloc (sizeof (*a
));
2316 a
->args
= xstrdup (args
);
2317 a
->from_tty
= from_tty
;
2318 a
->async_exec
= async_exec
;
2319 add_inferior_continuation (attach_command_continuation
, a
,
2320 attach_command_continuation_free_args
);
2321 discard_cleanups (back_to
);
2325 wait_for_inferior (0);
2328 attach_command_post_wait (args
, from_tty
, async_exec
);
2329 discard_cleanups (back_to
);
2334 * takes a program previously attached to and detaches it.
2335 * The program resumes execution and will no longer stop
2336 * on signals, etc. We better not have left any breakpoints
2337 * in the program or it'll die when it hits one. For this
2338 * to work, it may be necessary for the process to have been
2339 * previously attached. It *might* work if the program was
2340 * started via the normal ptrace (PTRACE_TRACEME).
2344 detach_command (char *args
, int from_tty
)
2346 dont_repeat (); /* Not for the faint of heart. */
2347 target_detach (args
, from_tty
);
2349 /* If the solist is global across inferiors, don't clear it when we
2350 detach from a single inferior. */
2351 if (!gdbarch_has_global_solist (target_gdbarch
))
2352 no_shared_libraries (NULL
, from_tty
);
2354 /* If the current target interface claims there's still execution,
2355 then don't mess with threads of other processes. */
2356 if (!target_has_execution
)
2357 init_thread_list ();
2359 if (deprecated_detach_hook
)
2360 deprecated_detach_hook ();
2363 /* Disconnect from the current target without resuming it (leaving it
2364 waiting for a debugger).
2366 We'd better not have left any breakpoints in the program or the
2367 next debugger will get confused. Currently only supported for some
2368 remote targets, since the normal attach mechanisms don't work on
2369 stopped processes on some native platforms (e.g. GNU/Linux). */
2372 disconnect_command (char *args
, int from_tty
)
2374 dont_repeat (); /* Not for the faint of heart */
2375 target_disconnect (args
, from_tty
);
2376 no_shared_libraries (NULL
, from_tty
);
2377 init_thread_list ();
2378 if (deprecated_detach_hook
)
2379 deprecated_detach_hook ();
2383 interrupt_target_1 (int all_threads
)
2387 ptid
= minus_one_ptid
;
2389 ptid
= inferior_ptid
;
2392 /* Tag the thread as having been explicitly requested to stop, so
2393 other parts of gdb know not to resume this thread automatically,
2394 if it was stopped due to an internal event. Limit this to
2395 non-stop mode, as when debugging a multi-threaded application in
2396 all-stop mode, we will only get one stop event --- it's undefined
2397 which thread will report the event. */
2399 set_stop_requested (ptid
, 1);
2402 /* Stop the execution of the target while running in async mode, in
2403 the backgound. In all-stop, stop the whole process. In non-stop
2404 mode, stop the current thread only by default, or stop all threads
2405 if the `-a' switch is used. */
2407 /* interrupt [-a] */
2409 interrupt_target_command (char *args
, int from_tty
)
2411 if (target_can_async_p ())
2413 int all_threads
= 0;
2415 dont_repeat (); /* Not for the faint of heart */
2418 && strncmp (args
, "-a", sizeof ("-a") - 1) == 0)
2421 if (!non_stop
&& all_threads
)
2422 error (_("-a is meaningless in all-stop mode."));
2424 interrupt_target_1 (all_threads
);
2429 print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
,
2430 struct frame_info
*frame
, const char *args
)
2432 if (gdbarch_print_float_info_p (gdbarch
))
2433 gdbarch_print_float_info (gdbarch
, file
, frame
, args
);
2437 int printed_something
= 0;
2440 regnum
< gdbarch_num_regs (gdbarch
)
2441 + gdbarch_num_pseudo_regs (gdbarch
);
2444 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, float_reggroup
))
2446 printed_something
= 1;
2447 gdbarch_print_registers_info (gdbarch
, file
, frame
, regnum
, 1);
2450 if (!printed_something
)
2451 fprintf_filtered (file
, "\
2452 No floating-point info available for this processor.\n");
2457 float_info (char *args
, int from_tty
)
2459 if (!target_has_registers
)
2460 error (_("The program has no registers now."));
2462 print_float_info (current_gdbarch
, gdb_stdout
,
2463 get_selected_frame (NULL
), args
);
2467 unset_command (char *args
, int from_tty
)
2469 printf_filtered (_("\
2470 \"unset\" must be followed by the name of an unset subcommand.\n"));
2471 help_list (unsetlist
, "unset ", -1, gdb_stdout
);
2475 _initialize_infcmd (void)
2477 struct cmd_list_element
*c
= NULL
;
2479 /* add the filename of the terminal connected to inferior I/O */
2480 add_setshow_filename_cmd ("inferior-tty", class_run
,
2481 &inferior_io_terminal
, _("\
2482 Set terminal for future runs of program being debugged."), _("\
2483 Show terminal for future runs of program being debugged."), _("\
2484 Usage: set inferior-tty /dev/pts/1"), NULL
, NULL
, &setlist
, &showlist
);
2485 add_com_alias ("tty", "set inferior-tty", class_alias
, 0);
2487 add_setshow_optional_filename_cmd ("args", class_run
,
2488 &inferior_args
, _("\
2489 Set argument list to give program being debugged when it is started."), _("\
2490 Show argument list to give program being debugged when it is started."), _("\
2491 Follow this command with any number of args, to be passed to the program."),
2494 &setlist
, &showlist
);
2496 c
= add_cmd ("environment", no_class
, environment_info
, _("\
2497 The environment to give the program, or one variable's value.\n\
2498 With an argument VAR, prints the value of environment variable VAR to\n\
2499 give the program being debugged. With no arguments, prints the entire\n\
2500 environment to be given to the program."), &showlist
);
2501 set_cmd_completer (c
, noop_completer
);
2503 add_prefix_cmd ("unset", no_class
, unset_command
,
2504 _("Complement to certain \"set\" commands."),
2505 &unsetlist
, "unset ", 0, &cmdlist
);
2507 c
= add_cmd ("environment", class_run
, unset_environment_command
, _("\
2508 Cancel environment variable VAR for the program.\n\
2509 This does not affect the program until the next \"run\" command."),
2511 set_cmd_completer (c
, noop_completer
);
2513 c
= add_cmd ("environment", class_run
, set_environment_command
, _("\
2514 Set environment variable value to give the program.\n\
2515 Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\
2516 VALUES of environment variables are uninterpreted strings.\n\
2517 This does not affect the program until the next \"run\" command."),
2519 set_cmd_completer (c
, noop_completer
);
2521 c
= add_com ("path", class_files
, path_command
, _("\
2522 Add directory DIR(s) to beginning of search path for object files.\n\
2523 $cwd in the path means the current working directory.\n\
2524 This path is equivalent to the $PATH shell variable. It is a list of\n\
2525 directories, separated by colons. These directories are searched to find\n\
2526 fully linked executable files and separately compiled object files as needed."));
2527 set_cmd_completer (c
, filename_completer
);
2529 c
= add_cmd ("paths", no_class
, path_info
, _("\
2530 Current search path for finding object files.\n\
2531 $cwd in the path means the current working directory.\n\
2532 This path is equivalent to the $PATH shell variable. It is a list of\n\
2533 directories, separated by colons. These directories are searched to find\n\
2534 fully linked executable files and separately compiled object files as needed."),
2536 set_cmd_completer (c
, noop_completer
);
2538 add_com ("attach", class_run
, attach_command
, _("\
2539 Attach to a process or file outside of GDB.\n\
2540 This command attaches to another target, of the same type as your last\n\
2541 \"target\" command (\"info files\" will show your target stack).\n\
2542 The command may take as argument a process id or a device file.\n\
2543 For a process id, you must have permission to send the process a signal,\n\
2544 and it must have the same effective uid as the debugger.\n\
2545 When using \"attach\" with a process id, the debugger finds the\n\
2546 program running in the process, looking first in the current working\n\
2547 directory, or (if not found there) using the source file search path\n\
2548 (see the \"directory\" command). You can also use the \"file\" command\n\
2549 to specify the program, and to load its symbol table."));
2551 add_prefix_cmd ("detach", class_run
, detach_command
, _("\
2552 Detach a process or file previously attached.\n\
2553 If a process, it is no longer traced, and it continues its execution. If\n\
2554 you were debugging a file, the file is closed and gdb no longer accesses it."),
2555 &detachlist
, "detach ", 0, &cmdlist
);
2557 add_com ("disconnect", class_run
, disconnect_command
, _("\
2558 Disconnect from a target.\n\
2559 The target will wait for another debugger to connect. Not available for\n\
2562 add_com ("signal", class_run
, signal_command
, _("\
2563 Continue program giving it signal specified by the argument.\n\
2564 An argument of \"0\" means continue program without giving it a signal."));
2566 add_com ("stepi", class_run
, stepi_command
, _("\
2567 Step one instruction exactly.\n\
2568 Argument N means do this N times (or till program stops for another reason)."));
2569 add_com_alias ("si", "stepi", class_alias
, 0);
2571 add_com ("nexti", class_run
, nexti_command
, _("\
2572 Step one instruction, but proceed through subroutine calls.\n\
2573 Argument N means do this N times (or till program stops for another reason)."));
2574 add_com_alias ("ni", "nexti", class_alias
, 0);
2576 add_com ("finish", class_run
, finish_command
, _("\
2577 Execute until selected stack frame returns.\n\
2578 Upon return, the value returned is printed and put in the value history."));
2579 add_com_alias ("fin", "finish", class_run
, 1);
2581 add_com ("next", class_run
, next_command
, _("\
2582 Step program, proceeding through subroutine calls.\n\
2583 Like the \"step\" command as long as subroutine calls do not happen;\n\
2584 when they do, the call is treated as one instruction.\n\
2585 Argument N means do this N times (or till program stops for another reason)."));
2586 add_com_alias ("n", "next", class_run
, 1);
2588 add_com_alias ("S", "next", class_run
, 1);
2590 add_com ("step", class_run
, step_command
, _("\
2591 Step program until it reaches a different source line.\n\
2592 Argument N means do this N times (or till program stops for another reason)."));
2593 add_com_alias ("s", "step", class_run
, 1);
2595 c
= add_com ("until", class_run
, until_command
, _("\
2596 Execute until the program reaches a source line greater than the current\n\
2597 or a specified location (same args as break command) within the current frame."));
2598 set_cmd_completer (c
, location_completer
);
2599 add_com_alias ("u", "until", class_run
, 1);
2601 c
= add_com ("advance", class_run
, advance_command
, _("\
2602 Continue the program up to the given location (same form as args for break command).\n\
2603 Execution will also stop upon exit from the current stack frame."));
2604 set_cmd_completer (c
, location_completer
);
2606 c
= add_com ("jump", class_run
, jump_command
, _("\
2607 Continue program being debugged at specified line or address.\n\
2608 Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\
2609 for an address to start at."));
2610 set_cmd_completer (c
, location_completer
);
2614 c
= add_com ("go", class_run
, go_command
, _("\
2615 Usage: go <location>\n\
2616 Continue program being debugged, stopping at specified line or \n\
2618 Give as argument either LINENUM or *ADDR, where ADDR is an \n\
2619 expression for an address to start at.\n\
2620 This command is a combination of tbreak and jump."));
2621 set_cmd_completer (c
, location_completer
);
2625 add_com_alias ("g", "go", class_run
, 1);
2627 c
= add_com ("continue", class_run
, continue_command
, _("\
2628 Continue program being debugged, after signal or breakpoint.\n\
2629 If proceeding from breakpoint, a number N may be used as an argument,\n\
2630 which means to set the ignore count of that breakpoint to N - 1 (so that\n\
2631 the breakpoint won't break until the Nth time it is reached).\n\
2633 If non-stop mode is enabled, continue only the current thread,\n\
2634 otherwise all the threads in the program are continued. To \n\
2635 continue all stopped threads in non-stop mode, use the -a option.\n\
2636 Specifying -a and an ignore count simultaneously is an error."));
2637 add_com_alias ("c", "cont", class_run
, 1);
2638 add_com_alias ("fg", "cont", class_run
, 1);
2640 c
= add_com ("run", class_run
, run_command
, _("\
2641 Start debugged program. You may specify arguments to give it.\n\
2642 Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\
2643 Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\
2644 With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\
2645 To cancel previous arguments and run with no arguments,\n\
2646 use \"set args\" without arguments."));
2647 set_cmd_completer (c
, filename_completer
);
2648 add_com_alias ("r", "run", class_run
, 1);
2650 add_com ("R", class_run
, run_no_args_command
,
2651 _("Start debugged program with no arguments."));
2653 c
= add_com ("start", class_run
, start_command
, _("\
2654 Run the debugged program until the beginning of the main procedure.\n\
2655 You may specify arguments to give to your program, just as with the\n\
2656 \"run\" command."));
2657 set_cmd_completer (c
, filename_completer
);
2659 c
= add_com ("interrupt", class_run
, interrupt_target_command
,
2660 _("Interrupt the execution of the debugged program.\n\
2661 If non-stop mode is enabled, interrupt only the current thread,\n\
2662 otherwise all the threads in the program are stopped. To \n\
2663 interrupt all running threads in non-stop mode, use the -a option."));
2665 add_info ("registers", nofp_registers_info
, _("\
2666 List of integer registers and their contents, for selected stack frame.\n\
2667 Register name as argument means describe only that register."));
2668 add_info_alias ("r", "registers", 1);
2671 add_com ("lr", class_info
, nofp_registers_info
, _("\
2672 List of integer registers and their contents, for selected stack frame.\n\
2673 Register name as argument means describe only that register."));
2674 add_info ("all-registers", all_registers_info
, _("\
2675 List of all registers and their contents, for selected stack frame.\n\
2676 Register name as argument means describe only that register."));
2678 add_info ("program", program_info
,
2679 _("Execution status of the program."));
2681 add_info ("float", float_info
,
2682 _("Print the status of the floating point unit\n"));
2684 add_info ("vector", vector_info
,
2685 _("Print the status of the vector unit\n"));
2687 inferior_environ
= make_environ ();
2688 init_environ (inferior_environ
);