1 /* Memory-access and commands for "inferior" process, for GDB.
3 Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
4 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
5 2008, 2009 Free Software Foundation, Inc.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
24 #include "gdb_string.h"
38 #include "completer.h"
40 #include "event-top.h"
41 #include "parser-defs.h"
43 #include "reggroups.h"
47 #include "gdb_assert.h"
49 #include "target-descriptions.h"
50 #include "user-regs.h"
51 #include "exceptions.h"
52 #include "cli/cli-decode.h"
53 #include "gdbthread.h"
56 /* Functions exported for general use, in inferior.h: */
58 void all_registers_info (char *, int);
60 void registers_info (char *, int);
62 void nexti_command (char *, int);
64 void stepi_command (char *, int);
66 void continue_command (char *, int);
68 void interrupt_target_command (char *args
, int from_tty
);
70 /* Local functions: */
72 static void nofp_registers_info (char *, int);
74 static void print_return_value (struct type
*func_type
,
75 struct type
*value_type
);
77 static void until_next_command (int);
79 static void until_command (char *, int);
81 static void path_info (char *, int);
83 static void path_command (char *, int);
85 static void unset_command (char *, int);
87 static void float_info (char *, int);
89 static void disconnect_command (char *, int);
91 static void unset_environment_command (char *, int);
93 static void set_environment_command (char *, int);
95 static void environment_info (char *, int);
97 static void program_info (char *, int);
99 static void finish_command (char *, int);
101 static void signal_command (char *, int);
103 static void jump_command (char *, int);
105 static void step_1 (int, int, char *);
106 static void step_once (int skip_subroutines
, int single_inst
, int count
, int thread
);
108 static void next_command (char *, int);
110 static void step_command (char *, int);
112 static void run_command (char *, int);
114 static void run_no_args_command (char *args
, int from_tty
);
116 static void go_command (char *line_no
, int from_tty
);
118 static int strip_bg_char (char **);
120 void _initialize_infcmd (void);
122 #define ERROR_NO_INFERIOR \
123 if (!target_has_execution) error (_("The program is not being run."));
125 /* String containing arguments to give to the program, separated by spaces.
126 Empty string (pointer to '\0') means no args. */
128 static char *inferior_args
;
130 /* The inferior arguments as a vector. If INFERIOR_ARGC is nonzero,
131 then we must compute INFERIOR_ARGS from this (via the target). */
133 static int inferior_argc
;
134 static char **inferior_argv
;
136 /* File name for default use for standard in/out in the inferior. */
138 static char *inferior_io_terminal
;
140 /* Pid of our debugged inferior, or 0 if no inferior now.
141 Since various parts of infrun.c test this to see whether there is a program
142 being debugged it should be nonzero (currently 3 is used) for remote
145 ptid_t inferior_ptid
;
147 /* Address at which inferior stopped. */
151 /* Flag indicating that a command has proceeded the inferior past the
152 current breakpoint. */
154 int breakpoint_proceeded
;
156 /* Nonzero if stopped due to completion of a stack dummy routine. */
158 int stop_stack_dummy
;
160 /* Nonzero if stopped due to a random (unexpected) signal in inferior
163 int stopped_by_random_signal
;
165 /* Environment to use for running inferior,
166 in format described in environ.h. */
168 struct gdb_environ
*inferior_environ
;
170 /* 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
)
459 struct cleanup
*old_chain
;
464 kill_if_already_running (from_tty
);
466 init_wait_for_inferior ();
467 clear_breakpoint_hit_counts ();
469 /* Clean up any leftovers from other runs. Some other things from
470 this function should probably be moved into target_pre_inferior. */
471 target_pre_inferior (from_tty
);
473 /* The comment here used to read, "The exec file is re-read every
474 time we do a generic_mourn_inferior, so we just have to worry
475 about the symbol file." The `generic_mourn_inferior' function
476 gets called whenever the program exits. However, suppose the
477 program exits, and *then* the executable file changes? We need
478 to check again here. Since reopen_exec_file doesn't do anything
479 if the timestamp hasn't changed, I don't see the harm. */
483 /* Insert the temporary breakpoint if a location was specified. */
485 tbreak_command (main_name (), 0);
487 exec_file
= (char *) get_exec_file (0);
489 if (non_stop
&& !target_supports_non_stop ())
490 error (_("The target does not support running in non-stop mode."));
492 /* We keep symbols from add-symbol-file, on the grounds that the
493 user might want to add some symbols before running the program
494 (right?). But sometimes (dynamic loading where the user manually
495 introduces the new symbols with add-symbol-file), the code which
496 the symbols describe does not persist between runs. Currently
497 the user has to manually nuke all symbols between runs if they
498 want them to go away (PR 2207). This is probably reasonable. */
502 if (target_can_async_p ())
503 async_disable_stdin ();
507 int async_exec
= strip_bg_char (&args
);
509 /* If we get a request for running in the bg but the target
510 doesn't support it, error out. */
511 if (async_exec
&& !target_can_async_p ())
512 error (_("Asynchronous execution not supported on this target."));
514 /* If we don't get a request of running in the bg, then we need
515 to simulate synchronous (fg) execution. */
516 if (!async_exec
&& target_can_async_p ())
518 /* Simulate synchronous execution */
519 async_disable_stdin ();
522 /* If there were other args, beside '&', process them. */
525 char *old_args
= set_inferior_args (xstrdup (args
));
532 ui_out_field_string (uiout
, NULL
, "Starting program");
533 ui_out_text (uiout
, ": ");
535 ui_out_field_string (uiout
, "execfile", exec_file
);
536 ui_out_spaces (uiout
, 1);
537 /* We call get_inferior_args() because we might need to compute
539 ui_out_field_string (uiout
, "infargs", get_inferior_args ());
540 ui_out_text (uiout
, "\n");
541 ui_out_flush (uiout
);
544 /* We call get_inferior_args() because we might need to compute
546 target_create_inferior (exec_file
, get_inferior_args (),
547 environ_vector (inferior_environ
), from_tty
);
549 /* We're starting off a new process. When we get out of here, in
550 non-stop mode, finish the state of all threads of that process,
551 but leave other threads alone, as they may be stopped in internal
552 events --- the frontend shouldn't see them as stopped. In
553 all-stop, always finish the state of all threads, as we may be
554 resuming more than just the new process. */
556 ptid
= pid_to_ptid (ptid_get_pid (inferior_ptid
));
558 ptid
= minus_one_ptid
;
559 old_chain
= make_cleanup (finish_thread_state_cleanup
, &ptid
);
561 /* Pass zero for FROM_TTY, because at this point the "run" command
562 has done its thing; now we are setting up the running program. */
563 post_create_inferior (¤t_target
, 0);
565 /* Start the target running. */
566 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_0
, 0);
568 /* Since there was no error, there's no need to finish the thread
570 discard_cleanups (old_chain
);
574 run_command (char *args
, int from_tty
)
576 run_command_1 (args
, from_tty
, 0);
580 run_no_args_command (char *args
, int from_tty
)
582 char *old_args
= set_inferior_args (xstrdup (""));
587 /* Start the execution of the program up until the beginning of the main
591 start_command (char *args
, int from_tty
)
593 /* Some languages such as Ada need to search inside the program
594 minimal symbols for the location where to put the temporary
595 breakpoint before starting. */
596 if (!have_minimal_symbols ())
597 error (_("No symbol table loaded. Use the \"file\" command."));
599 /* Run the program until reaching the main procedure... */
600 run_command_1 (args
, from_tty
, 1);
604 proceed_thread_callback (struct thread_info
*thread
, void *arg
)
606 /* We go through all threads individually instead of compressing
607 into a single target `resume_all' request, because some threads
608 may be stopped in internal breakpoints/events, or stopped waiting
609 for its turn in the displaced stepping queue (that is, they are
610 running && !executing). The target side has no idea about why
611 the thread is stopped, so a `resume_all' command would resume too
612 much. If/when GDB gains a way to tell the target `hold this
613 thread stopped until I say otherwise', then we can optimize
615 if (!is_stopped (thread
->ptid
))
618 switch_to_thread (thread
->ptid
);
619 clear_proceed_status ();
620 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
625 continue_1 (int all_threads
)
629 if (non_stop
&& all_threads
)
631 /* Don't error out if the current thread is running, because
632 there may be other stopped threads. */
633 struct cleanup
*old_chain
;
635 /* Backup current thread and selected frame. */
636 old_chain
= make_cleanup_restore_current_thread ();
638 iterate_over_threads (proceed_thread_callback
, NULL
);
640 /* Restore selected ptid. */
641 do_cleanups (old_chain
);
645 ensure_not_running ();
646 clear_proceed_status ();
647 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
651 /* continue [-a] [proceed-count] [&] */
653 continue_command (char *args
, int from_tty
)
659 /* Find out whether we must run in the background. */
661 async_exec
= strip_bg_char (&args
);
663 /* If we must run in the background, but the target can't do it,
665 if (async_exec
&& !target_can_async_p ())
666 error (_("Asynchronous execution not supported on this target."));
668 /* If we are not asked to run in the bg, then prepare to run in the
669 foreground, synchronously. */
670 if (!async_exec
&& target_can_async_p ())
672 /* Simulate synchronous execution */
673 async_disable_stdin ();
678 if (strncmp (args
, "-a", sizeof ("-a") - 1) == 0)
681 args
+= sizeof ("-a") - 1;
687 if (!non_stop
&& all_threads
)
688 error (_("`-a' is meaningless in all-stop mode."));
690 if (args
!= NULL
&& all_threads
)
692 Can't resume all threads and specify proceed count simultaneously."));
694 /* If we have an argument left, set proceed count of breakpoint we
701 struct thread_info
*tp
;
704 tp
= find_thread_pid (inferior_ptid
);
708 struct target_waitstatus ws
;
710 get_last_target_status (&last_ptid
, &ws
);
711 tp
= find_thread_pid (last_ptid
);
714 bs
= tp
->stop_bpstat
;
716 while ((stat
= bpstat_num (&bs
, &num
)) != 0)
719 set_ignore_count (num
,
720 parse_and_eval_long (args
) - 1,
722 /* set_ignore_count prints a message ending with a period.
723 So print two spaces before "Continuing.". */
725 printf_filtered (" ");
729 if (!stopped
&& from_tty
)
732 ("Not stopped at any breakpoint; argument ignored.\n");
737 printf_filtered (_("Continuing.\n"));
739 continue_1 (all_threads
);
742 /* Step until outside of current statement. */
745 step_command (char *count_string
, int from_tty
)
747 step_1 (0, 0, count_string
);
750 /* Likewise, but skip over subroutine calls as if single instructions. */
753 next_command (char *count_string
, int from_tty
)
755 step_1 (1, 0, count_string
);
758 /* Likewise, but step only one instruction. */
761 stepi_command (char *count_string
, int from_tty
)
763 step_1 (0, 1, count_string
);
767 nexti_command (char *count_string
, int from_tty
)
769 step_1 (1, 1, count_string
);
773 delete_longjmp_breakpoint_cleanup (void *arg
)
775 int thread
= * (int *) arg
;
776 delete_longjmp_breakpoint (thread
);
780 step_1 (int skip_subroutines
, int single_inst
, char *count_string
)
783 struct frame_info
*frame
;
784 struct cleanup
*cleanups
= make_cleanup (null_cleanup
, NULL
);
789 ensure_not_running ();
792 async_exec
= strip_bg_char (&count_string
);
794 /* If we get a request for running in the bg but the target
795 doesn't support it, error out. */
796 if (async_exec
&& !target_can_async_p ())
797 error (_("Asynchronous execution not supported on this target."));
799 /* If we don't get a request of running in the bg, then we need
800 to simulate synchronous (fg) execution. */
801 if (!async_exec
&& target_can_async_p ())
803 /* Simulate synchronous execution */
804 async_disable_stdin ();
807 count
= count_string
? parse_and_eval_long (count_string
) : 1;
809 if (!single_inst
|| skip_subroutines
) /* leave si command alone */
811 if (in_thread_list (inferior_ptid
))
812 thread
= pid_to_thread_id (inferior_ptid
);
814 set_longjmp_breakpoint ();
816 make_cleanup (delete_longjmp_breakpoint_cleanup
, &thread
);
819 /* In synchronous case, all is well; each step_once call will step once. */
820 if (!target_can_async_p ())
822 for (; count
> 0; count
--)
824 struct thread_info
*tp
;
825 step_once (skip_subroutines
, single_inst
, count
, thread
);
827 if (target_has_execution
828 && !ptid_equal (inferior_ptid
, null_ptid
))
829 tp
= inferior_thread ();
833 if (!tp
|| !tp
->stop_step
|| !tp
->step_multi
)
835 /* If we stopped for some reason that is not stepping
836 there are no further steps to make. */
843 do_cleanups (cleanups
);
847 /* In the case of an asynchronous target things get complicated;
848 do only one step for now, before returning control to the
849 event loop. Let the continuation figure out how many other
850 steps we need to do, and handle them one at the time, through
852 step_once (skip_subroutines
, single_inst
, count
, thread
);
854 /* We are running, and the continuation is installed. It will
855 disable the longjmp breakpoint as appropriate. */
856 discard_cleanups (cleanups
);
860 struct step_1_continuation_args
863 int skip_subroutines
;
868 /* Called after we are done with one step operation, to check whether
869 we need to step again, before we print the prompt and return control
870 to the user. If count is > 1, we will need to do one more call to
871 proceed(), via step_once(). Basically it is like step_once and
872 step_1_continuation are co-recursive. */
874 step_1_continuation (void *args
)
876 struct step_1_continuation_args
*a
= args
;
878 if (target_has_execution
)
880 struct thread_info
*tp
;
882 tp
= inferior_thread ();
883 if (tp
->step_multi
&& tp
->stop_step
)
885 /* There are more steps to make, and we did stop due to
886 ending a stepping range. Do another step. */
887 step_once (a
->skip_subroutines
, a
->single_inst
,
888 a
->count
- 1, a
->thread
);
894 /* We either stopped for some reason that is not stepping, or there
895 are no further steps to make. Cleanup. */
896 if (!a
->single_inst
|| a
->skip_subroutines
)
897 delete_longjmp_breakpoint (a
->thread
);
900 /* Do just one step operation. This is useful to implement the 'step
901 n' kind of commands. In case of asynchronous targets, we will have
902 to set up a continuation to be done after the target stops (after
903 this one step). For synch targets, the caller handles further
907 step_once (int skip_subroutines
, int single_inst
, int count
, int thread
)
909 struct frame_info
*frame
;
913 /* Don't assume THREAD is a valid thread id. It is set to -1 if
914 the longjmp breakpoint was not required. Use the
915 INFERIOR_PTID thread instead, which is the same thread when
917 struct thread_info
*tp
= inferior_thread ();
918 clear_proceed_status ();
920 frame
= get_current_frame ();
921 tp
->step_frame_id
= get_frame_id (frame
);
927 pc
= get_frame_pc (frame
);
928 find_pc_line_pc_range (pc
,
929 &tp
->step_range_start
, &tp
->step_range_end
);
931 /* If we have no line info, switch to stepi mode. */
932 if (tp
->step_range_end
== 0 && step_stop_if_no_debug
)
934 tp
->step_range_start
= tp
->step_range_end
= 1;
936 else if (tp
->step_range_end
== 0)
939 if (find_pc_partial_function (pc
, &name
,
940 &tp
->step_range_start
,
941 &tp
->step_range_end
) == 0)
942 error (_("Cannot find bounds of current function"));
944 target_terminal_ours ();
945 printf_filtered (_("\
946 Single stepping until exit from function %s, \n\
947 which has no line number information.\n"), name
);
952 /* Say we are stepping, but stop after one insn whatever it does. */
953 tp
->step_range_start
= tp
->step_range_end
= 1;
954 if (!skip_subroutines
)
956 Don't step over function calls, not even to functions lacking
958 tp
->step_over_calls
= STEP_OVER_NONE
;
961 if (skip_subroutines
)
962 tp
->step_over_calls
= STEP_OVER_ALL
;
964 tp
->step_multi
= (count
> 1);
965 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
967 /* For async targets, register a continuation to do any
968 additional steps. For sync targets, the caller will handle
970 if (target_can_async_p ())
972 struct step_1_continuation_args
*args
;
974 args
= xmalloc (sizeof (*args
));
975 args
->skip_subroutines
= skip_subroutines
;
976 args
->single_inst
= single_inst
;
978 args
->thread
= thread
;
980 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 proceed ((CORE_ADDR
) -1, oursig
, 0);
1151 /* Proceed until we reach a different source line with pc greater than
1152 our current one or exit the function. We skip calls in both cases.
1154 Note that eventually this command should probably be changed so
1155 that only source lines are printed out when we hit the breakpoint
1156 we set. This may involve changes to wait_for_inferior and the
1157 proceed status code. */
1160 until_next_command (int from_tty
)
1162 struct frame_info
*frame
;
1164 struct symbol
*func
;
1165 struct symtab_and_line sal
;
1166 struct thread_info
*tp
= inferior_thread ();
1168 clear_proceed_status ();
1170 frame
= get_current_frame ();
1172 /* Step until either exited from this function or greater
1173 than the current line (if in symbolic section) or pc (if
1176 pc
= get_frame_pc (frame
);
1177 func
= find_pc_function (pc
);
1181 struct minimal_symbol
*msymbol
= lookup_minimal_symbol_by_pc (pc
);
1183 if (msymbol
== NULL
)
1184 error (_("Execution is not within a known function."));
1186 tp
->step_range_start
= SYMBOL_VALUE_ADDRESS (msymbol
);
1187 tp
->step_range_end
= pc
;
1191 sal
= find_pc_line (pc
, 0);
1193 tp
->step_range_start
= BLOCK_START (SYMBOL_BLOCK_VALUE (func
));
1194 tp
->step_range_end
= sal
.end
;
1197 tp
->step_over_calls
= STEP_OVER_ALL
;
1198 tp
->step_frame_id
= get_frame_id (frame
);
1200 tp
->step_multi
= 0; /* Only one call to proceed */
1202 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
1206 until_command (char *arg
, int from_tty
)
1210 if (!target_has_execution
)
1211 error (_("The program is not running."));
1213 /* Find out whether we must run in the background. */
1215 async_exec
= strip_bg_char (&arg
);
1217 /* If we must run in the background, but the target can't do it,
1219 if (async_exec
&& !target_can_async_p ())
1220 error (_("Asynchronous execution not supported on this target."));
1222 /* If we are not asked to run in the bg, then prepare to run in the
1223 foreground, synchronously. */
1224 if (!async_exec
&& target_can_async_p ())
1226 /* Simulate synchronous execution */
1227 async_disable_stdin ();
1231 until_break_command (arg
, from_tty
, 0);
1233 until_next_command (from_tty
);
1237 advance_command (char *arg
, int from_tty
)
1241 if (!target_has_execution
)
1242 error (_("The program is not running."));
1245 error_no_arg (_("a location"));
1247 /* Find out whether we must run in the background. */
1249 async_exec
= strip_bg_char (&arg
);
1251 /* If we must run in the background, but the target can't do it,
1253 if (async_exec
&& !target_can_async_p ())
1254 error (_("Asynchronous execution not supported on this target."));
1256 /* If we are not asked to run in the bg, then prepare to run in the
1257 foreground, synchronously. */
1258 if (!async_exec
&& target_can_async_p ())
1260 /* Simulate synchronous execution. */
1261 async_disable_stdin ();
1264 until_break_command (arg
, from_tty
, 1);
1267 /* Print the result of a function at the end of a 'finish' command. */
1270 print_return_value (struct type
*func_type
, struct type
*value_type
)
1272 struct gdbarch
*gdbarch
= current_gdbarch
;
1273 struct cleanup
*old_chain
;
1274 struct ui_stream
*stb
;
1275 struct value
*value
;
1277 CHECK_TYPEDEF (value_type
);
1278 gdb_assert (TYPE_CODE (value_type
) != TYPE_CODE_VOID
);
1280 /* FIXME: 2003-09-27: When returning from a nested inferior function
1281 call, it's possible (with no help from the architecture vector)
1282 to locate and return/print a "struct return" value. This is just
1283 a more complicated case of what is already being done in in the
1284 inferior function call code. In fact, when inferior function
1285 calls are made async, this will likely be made the norm. */
1287 switch (gdbarch_return_value (gdbarch
, func_type
, value_type
,
1290 case RETURN_VALUE_REGISTER_CONVENTION
:
1291 case RETURN_VALUE_ABI_RETURNS_ADDRESS
:
1292 case RETURN_VALUE_ABI_PRESERVES_ADDRESS
:
1293 value
= allocate_value (value_type
);
1294 gdbarch_return_value (gdbarch
, func_type
, value_type
, stop_registers
,
1295 value_contents_raw (value
), NULL
);
1297 case RETURN_VALUE_STRUCT_CONVENTION
:
1301 internal_error (__FILE__
, __LINE__
, _("bad switch"));
1306 struct value_print_options opts
;
1309 stb
= ui_out_stream_new (uiout
);
1310 old_chain
= make_cleanup_ui_out_stream_delete (stb
);
1311 ui_out_text (uiout
, "Value returned is ");
1312 ui_out_field_fmt (uiout
, "gdb-result-var", "$%d",
1313 record_latest_value (value
));
1314 ui_out_text (uiout
, " = ");
1315 get_raw_print_options (&opts
);
1316 value_print (value
, stb
->stream
, &opts
);
1317 ui_out_field_stream (uiout
, "return-value", stb
);
1318 ui_out_text (uiout
, "\n");
1319 do_cleanups (old_chain
);
1323 ui_out_text (uiout
, "Value returned has type: ");
1324 ui_out_field_string (uiout
, "return-type", TYPE_NAME (value_type
));
1325 ui_out_text (uiout
, ".");
1326 ui_out_text (uiout
, " Cannot determine contents\n");
1330 /* Stuff that needs to be done by the finish command after the target
1331 has stopped. In asynchronous mode, we wait for the target to stop
1332 in the call to poll or select in the event loop, so it is
1333 impossible to do all the stuff as part of the finish_command
1334 function itself. The only chance we have to complete this command
1335 is in fetch_inferior_event, which is called by the event loop as
1336 soon as it detects that the target has stopped. This function is
1337 called via the cmd_continuation pointer. */
1339 struct finish_command_continuation_args
1341 struct breakpoint
*breakpoint
;
1342 struct symbol
*function
;
1346 finish_command_continuation (void *arg
)
1348 struct finish_command_continuation_args
*a
= arg
;
1352 if (!ptid_equal (inferior_ptid
, null_ptid
)
1353 && target_has_execution
1354 && is_stopped (inferior_ptid
))
1355 bs
= inferior_thread ()->stop_bpstat
;
1357 if (bpstat_find_breakpoint (bs
, a
->breakpoint
) != NULL
1358 && a
->function
!= NULL
)
1360 struct type
*value_type
;
1362 value_type
= TYPE_TARGET_TYPE (SYMBOL_TYPE (a
->function
));
1364 internal_error (__FILE__
, __LINE__
,
1365 _("finish_command: function has no target type"));
1367 if (TYPE_CODE (value_type
) != TYPE_CODE_VOID
)
1368 print_return_value (SYMBOL_TYPE (a
->function
), value_type
);
1371 /* We suppress normal call of normal_stop observer and do it here so
1372 that that *stopped notification includes the return value. */
1373 /* NOTE: This is broken in non-stop mode. There is no guarantee the
1374 next stop will be in the same thread that we started doing a
1375 finish on. This suppressing (or some other replacement means)
1376 should be a thread property. */
1377 observer_notify_normal_stop (bs
);
1378 suppress_stop_observer
= 0;
1379 delete_breakpoint (a
->breakpoint
);
1383 finish_command_continuation_free_arg (void *arg
)
1385 /* NOTE: See finish_command_continuation. This would go away, if
1386 this suppressing is made a thread property. */
1387 suppress_stop_observer
= 0;
1391 /* finish_backward -- helper function for finish_command. */
1394 finish_backward (struct symbol
*function
)
1396 struct symtab_and_line sal
;
1397 struct thread_info
*tp
= inferior_thread ();
1398 struct breakpoint
*breakpoint
;
1399 struct cleanup
*old_chain
;
1401 CORE_ADDR func_addr
;
1404 pc
= get_frame_pc (get_current_frame ());
1406 if (find_pc_partial_function (pc
, 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. */
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
);