1 /* Memory-access and commands for "inferior" process, for GDB.
3 Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
4 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
5 2008 Free Software Foundation, Inc.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
24 #include "gdb_string.h"
38 #include "completer.h"
40 #include "event-top.h"
41 #include "parser-defs.h"
43 #include "reggroups.h"
47 #include "gdb_assert.h"
49 #include "target-descriptions.h"
50 #include "user-regs.h"
51 #include "exceptions.h"
52 #include "cli/cli-decode.h"
53 #include "gdbthread.h"
56 /* Functions exported for general use, in inferior.h: */
58 void all_registers_info (char *, int);
60 void registers_info (char *, int);
62 void nexti_command (char *, int);
64 void stepi_command (char *, int);
66 void continue_command (char *, int);
68 void interrupt_target_command (char *args
, int from_tty
);
70 /* Local functions: */
72 static void nofp_registers_info (char *, int);
74 static void print_return_value (struct type
*func_type
,
75 struct type
*value_type
);
77 static void until_next_command (int);
79 static void until_command (char *, int);
81 static void path_info (char *, int);
83 static void path_command (char *, int);
85 static void unset_command (char *, int);
87 static void float_info (char *, int);
89 static void detach_command (char *, int);
91 static void disconnect_command (char *, int);
93 static void unset_environment_command (char *, int);
95 static void set_environment_command (char *, int);
97 static void environment_info (char *, int);
99 static void program_info (char *, int);
101 static void finish_command (char *, int);
103 static void signal_command (char *, int);
105 static void jump_command (char *, int);
107 static void step_1 (int, int, char *);
108 static void step_once (int skip_subroutines
, int single_inst
, int count
, int thread
);
110 static void next_command (char *, int);
112 static void step_command (char *, int);
114 static void run_command (char *, int);
116 static void run_no_args_command (char *args
, int from_tty
);
118 static void go_command (char *line_no
, int from_tty
);
120 static int strip_bg_char (char **);
122 void _initialize_infcmd (void);
124 #define ERROR_NO_INFERIOR \
125 if (!target_has_execution) error (_("The program is not being run."));
127 /* String containing arguments to give to the program, separated by spaces.
128 Empty string (pointer to '\0') means no args. */
130 static char *inferior_args
;
132 /* The inferior arguments as a vector. If INFERIOR_ARGC is nonzero,
133 then we must compute INFERIOR_ARGS from this (via the target). */
135 static int inferior_argc
;
136 static char **inferior_argv
;
138 /* File name for default use for standard in/out in the inferior. */
140 static char *inferior_io_terminal
;
142 /* Pid of our debugged inferior, or 0 if no inferior now.
143 Since various parts of infrun.c test this to see whether there is a program
144 being debugged it should be nonzero (currently 3 is used) for remote
147 ptid_t inferior_ptid
;
149 /* Address at which inferior stopped. */
153 /* Flag indicating that a command has proceeded the inferior past the
154 current breakpoint. */
156 int breakpoint_proceeded
;
158 /* Nonzero if stopped due to completion of a stack dummy routine. */
160 int stop_stack_dummy
;
162 /* Nonzero if stopped due to a random (unexpected) signal in inferior
165 int stopped_by_random_signal
;
167 /* Environment to use for running inferior,
168 in format described in environ.h. */
170 struct gdb_environ
*inferior_environ
;
172 /* When set, no calls to target_resumed observer will be made. */
173 int suppress_resume_observer
= 0;
174 /* When set, normal_stop will not call the normal_stop observer. */
175 int suppress_stop_observer
= 0;
177 /* Accessor routines. */
180 set_inferior_io_terminal (const char *terminal_name
)
182 if (inferior_io_terminal
)
183 xfree (inferior_io_terminal
);
186 inferior_io_terminal
= NULL
;
188 inferior_io_terminal
= savestring (terminal_name
, strlen (terminal_name
));
192 get_inferior_io_terminal (void)
194 return inferior_io_terminal
;
198 get_inferior_args (void)
200 if (inferior_argc
!= 0)
204 n
= gdbarch_construct_inferior_arguments (current_gdbarch
,
205 inferior_argc
, inferior_argv
);
206 old
= set_inferior_args (n
);
210 if (inferior_args
== NULL
)
211 inferior_args
= xstrdup ("");
213 return inferior_args
;
217 set_inferior_args (char *newargs
)
219 char *saved_args
= inferior_args
;
221 inferior_args
= newargs
;
229 set_inferior_args_vector (int argc
, char **argv
)
231 inferior_argc
= argc
;
232 inferior_argv
= argv
;
235 /* Notice when `set args' is run. */
237 notice_args_set (char *args
, int from_tty
, struct cmd_list_element
*c
)
243 /* Notice when `show args' is run. */
245 notice_args_read (struct ui_file
*file
, int from_tty
,
246 struct cmd_list_element
*c
, const char *value
)
248 /* Note that we ignore the passed-in value in favor of computing it
250 deprecated_show_value_hack (file
, from_tty
, c
, get_inferior_args ());
254 /* Compute command-line string given argument vector. This does the
255 same shell processing as fork_inferior. */
257 construct_inferior_arguments (struct gdbarch
*gdbarch
, int argc
, char **argv
)
261 if (STARTUP_WITH_SHELL
)
263 /* This holds all the characters considered special to the
264 typical Unix shells. We include `^' because the SunOS
265 /bin/sh treats it as a synonym for `|'. */
266 char *special
= "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n";
271 /* We over-compute the size. It shouldn't matter. */
272 for (i
= 0; i
< argc
; ++i
)
273 length
+= 3 * strlen (argv
[i
]) + 1 + 2 * (argv
[i
][0] == '\0');
275 result
= (char *) xmalloc (length
);
278 for (i
= 0; i
< argc
; ++i
)
283 /* Need to handle empty arguments specially. */
284 if (argv
[i
][0] == '\0')
291 for (cp
= argv
[i
]; *cp
; ++cp
)
295 /* A newline cannot be quoted with a backslash (it
296 just disappears), only by putting it inside
304 if (strchr (special
, *cp
) != NULL
)
315 /* In this case we can't handle arguments that contain spaces,
316 tabs, or newlines -- see breakup_args(). */
320 for (i
= 0; i
< argc
; ++i
)
322 char *cp
= strchr (argv
[i
], ' ');
324 cp
= strchr (argv
[i
], '\t');
326 cp
= strchr (argv
[i
], '\n');
328 error (_("can't handle command-line argument containing whitespace"));
329 length
+= strlen (argv
[i
]) + 1;
332 result
= (char *) xmalloc (length
);
334 for (i
= 0; i
< argc
; ++i
)
337 strcat (result
, " ");
338 strcat (result
, argv
[i
]);
346 /* This function detects whether or not a '&' character (indicating
347 background execution) has been added as *the last* of the arguments ARGS
348 of a command. If it has, it removes it and returns 1. Otherwise it
349 does nothing and returns 0. */
351 strip_bg_char (char **args
)
355 p
= strchr (*args
, '&');
359 if (p
== (*args
+ strlen (*args
) - 1))
361 if (strlen (*args
) > 1)
365 while (*p
== ' ' || *p
== '\t');
377 tty_command (char *file
, int from_tty
)
380 error_no_arg (_("terminal name for running target process"));
382 set_inferior_io_terminal (file
);
385 /* Common actions to take after creating any sort of inferior, by any
386 means (running, attaching, connecting, et cetera). The target
387 should be stopped. */
390 post_create_inferior (struct target_ops
*target
, int from_tty
)
392 /* Be sure we own the terminal in case write operations are performed. */
393 target_terminal_ours ();
395 /* If the target hasn't taken care of this already, do it now.
396 Targets which need to access registers during to_open,
397 to_create_inferior, or to_attach should do it earlier; but many
399 target_find_description ();
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
);
414 /* Create the hooks to handle shared library load and unload
416 #ifdef SOLIB_CREATE_INFERIOR_HOOK
417 SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid
));
419 solib_create_inferior_hook ();
423 observer_notify_inferior_created (target
, from_tty
);
426 /* Kill the inferior if already running. This function is designed
427 to be called when we are about to start the execution of the program
428 from the beginning. Ask the user to confirm that he wants to restart
429 the program being debugged when FROM_TTY is non-null. */
432 kill_if_already_running (int from_tty
)
434 if (! ptid_equal (inferior_ptid
, null_ptid
) && target_has_execution
)
436 /* Bail out before killing the program if we will not be able to
438 target_require_runnable ();
441 && !query ("The program being debugged has been started already.\n\
442 Start it from the beginning? "))
443 error (_("Program not restarted."));
448 /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert
449 a temporary breakpoint at the begining of the main program before
450 running the program. */
453 run_command_1 (char *args
, int from_tty
, int tbreak_at_main
)
459 kill_if_already_running (from_tty
);
461 init_wait_for_inferior ();
462 clear_breakpoint_hit_counts ();
464 /* Clean up any leftovers from other runs. Some other things from
465 this function should probably be moved into target_pre_inferior. */
466 target_pre_inferior (from_tty
);
468 /* The comment here used to read, "The exec file is re-read every
469 time we do a generic_mourn_inferior, so we just have to worry
470 about the symbol file." The `generic_mourn_inferior' function
471 gets called whenever the program exits. However, suppose the
472 program exits, and *then* the executable file changes? We need
473 to check again here. Since reopen_exec_file doesn't do anything
474 if the timestamp hasn't changed, I don't see the harm. */
478 /* Insert the temporary breakpoint if a location was specified. */
480 tbreak_command (main_name (), 0);
482 exec_file
= (char *) get_exec_file (0);
484 if (non_stop
&& !target_supports_non_stop ())
485 error (_("The target does not support running in non-stop mode."));
487 /* We keep symbols from add-symbol-file, on the grounds that the
488 user might want to add some symbols before running the program
489 (right?). But sometimes (dynamic loading where the user manually
490 introduces the new symbols with add-symbol-file), the code which
491 the symbols describe does not persist between runs. Currently
492 the user has to manually nuke all symbols between runs if they
493 want them to go away (PR 2207). This is probably reasonable. */
497 if (target_can_async_p ())
498 async_disable_stdin ();
502 int async_exec
= strip_bg_char (&args
);
504 /* If we get a request for running in the bg but the target
505 doesn't support it, error out. */
506 if (async_exec
&& !target_can_async_p ())
507 error (_("Asynchronous execution not supported on this target."));
509 /* If we don't get a request of running in the bg, then we need
510 to simulate synchronous (fg) execution. */
511 if (!async_exec
&& target_can_async_p ())
513 /* Simulate synchronous execution */
514 async_disable_stdin ();
517 /* If there were other args, beside '&', process them. */
520 char *old_args
= set_inferior_args (xstrdup (args
));
527 ui_out_field_string (uiout
, NULL
, "Starting program");
528 ui_out_text (uiout
, ": ");
530 ui_out_field_string (uiout
, "execfile", exec_file
);
531 ui_out_spaces (uiout
, 1);
532 /* We call get_inferior_args() because we might need to compute
534 ui_out_field_string (uiout
, "infargs", get_inferior_args ());
535 ui_out_text (uiout
, "\n");
536 ui_out_flush (uiout
);
539 /* We call get_inferior_args() because we might need to compute
541 target_create_inferior (exec_file
, get_inferior_args (),
542 environ_vector (inferior_environ
), from_tty
);
544 /* Pass zero for FROM_TTY, because at this point the "run" command
545 has done its thing; now we are setting up the running program. */
546 post_create_inferior (¤t_target
, 0);
548 /* Start the target running. */
549 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_0
, 0);
554 run_command (char *args
, int from_tty
)
556 run_command_1 (args
, from_tty
, 0);
560 run_no_args_command (char *args
, int from_tty
)
562 char *old_args
= set_inferior_args (xstrdup (""));
567 /* Start the execution of the program up until the beginning of the main
571 start_command (char *args
, int from_tty
)
573 /* Some languages such as Ada need to search inside the program
574 minimal symbols for the location where to put the temporary
575 breakpoint before starting. */
576 if (!have_minimal_symbols ())
577 error (_("No symbol table loaded. Use the \"file\" command."));
579 /* Run the program until reaching the main procedure... */
580 run_command_1 (args
, from_tty
, 1);
584 proceed_thread_callback (struct thread_info
*thread
, void *arg
)
586 /* We go through all threads individually instead of compressing
587 into a single target `resume_all' request, because some threads
588 may be stopped in internal breakpoints/events, or stopped waiting
589 for its turn in the displaced stepping queue (that is, they are
590 running && !executing). The target side has no idea about why
591 the thread is stopped, so a `resume_all' command would resume too
592 much. If/when GDB gains a way to tell the target `hold this
593 thread stopped until I say otherwise', then we can optimize
595 if (!is_stopped (thread
->ptid
))
598 switch_to_thread (thread
->ptid
);
599 clear_proceed_status ();
600 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
605 continue_1 (int all_threads
)
609 if (non_stop
&& all_threads
)
611 /* Don't error out if the current thread is running, because
612 there may be other stopped threads. */
613 struct cleanup
*old_chain
;
615 /* Backup current thread and selected frame. */
616 old_chain
= make_cleanup_restore_current_thread ();
618 iterate_over_threads (proceed_thread_callback
, NULL
);
620 /* Restore selected ptid. */
621 do_cleanups (old_chain
);
625 ensure_not_running ();
626 clear_proceed_status ();
627 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
631 /* continue [-a] [proceed-count] [&] */
633 continue_command (char *args
, int from_tty
)
639 /* Find out whether we must run in the background. */
641 async_exec
= strip_bg_char (&args
);
643 /* If we must run in the background, but the target can't do it,
645 if (async_exec
&& !target_can_async_p ())
646 error (_("Asynchronous execution not supported on this target."));
648 /* If we are not asked to run in the bg, then prepare to run in the
649 foreground, synchronously. */
650 if (!async_exec
&& target_can_async_p ())
652 /* Simulate synchronous execution */
653 async_disable_stdin ();
658 if (strncmp (args
, "-a", sizeof ("-a") - 1) == 0)
661 args
+= sizeof ("-a") - 1;
667 if (!non_stop
&& all_threads
)
668 error (_("`-a' is meaningless in all-stop mode."));
670 if (args
!= NULL
&& all_threads
)
672 Can't resume all threads and specify proceed count simultaneously."));
674 /* If we have an argument left, set proceed count of breakpoint we
681 struct thread_info
*tp
;
684 tp
= find_thread_pid (inferior_ptid
);
688 struct target_waitstatus ws
;
690 get_last_target_status (&last_ptid
, &ws
);
691 tp
= find_thread_pid (last_ptid
);
694 bs
= tp
->stop_bpstat
;
696 while ((stat
= bpstat_num (&bs
, &num
)) != 0)
699 set_ignore_count (num
,
700 parse_and_eval_long (args
) - 1,
702 /* set_ignore_count prints a message ending with a period.
703 So print two spaces before "Continuing.". */
705 printf_filtered (" ");
709 if (!stopped
&& from_tty
)
712 ("Not stopped at any breakpoint; argument ignored.\n");
717 printf_filtered (_("Continuing.\n"));
719 continue_1 (all_threads
);
722 /* Step until outside of current statement. */
725 step_command (char *count_string
, int from_tty
)
727 step_1 (0, 0, count_string
);
730 /* Likewise, but skip over subroutine calls as if single instructions. */
733 next_command (char *count_string
, int from_tty
)
735 step_1 (1, 0, count_string
);
738 /* Likewise, but step only one instruction. */
741 stepi_command (char *count_string
, int from_tty
)
743 step_1 (0, 1, count_string
);
747 nexti_command (char *count_string
, int from_tty
)
749 step_1 (1, 1, count_string
);
753 delete_longjmp_breakpoint_cleanup (void *arg
)
755 int thread
= * (int *) arg
;
756 delete_longjmp_breakpoint (thread
);
760 step_1 (int skip_subroutines
, int single_inst
, char *count_string
)
763 struct frame_info
*frame
;
764 struct cleanup
*cleanups
= make_cleanup (null_cleanup
, NULL
);
769 ensure_not_running ();
772 async_exec
= strip_bg_char (&count_string
);
774 /* If we get a request for running in the bg but the target
775 doesn't support it, error out. */
776 if (async_exec
&& !target_can_async_p ())
777 error (_("Asynchronous execution not supported on this target."));
779 /* If we don't get a request of running in the bg, then we need
780 to simulate synchronous (fg) execution. */
781 if (!async_exec
&& target_can_async_p ())
783 /* Simulate synchronous execution */
784 async_disable_stdin ();
787 count
= count_string
? parse_and_eval_long (count_string
) : 1;
789 if (!single_inst
|| skip_subroutines
) /* leave si command alone */
791 if (in_thread_list (inferior_ptid
))
792 thread
= pid_to_thread_id (inferior_ptid
);
794 set_longjmp_breakpoint ();
796 make_cleanup (delete_longjmp_breakpoint_cleanup
, &thread
);
799 /* In synchronous case, all is well, just use the regular for loop. */
800 if (!target_can_async_p ())
802 for (; count
> 0; count
--)
804 struct thread_info
*tp
= inferior_thread ();
805 clear_proceed_status ();
807 frame
= get_current_frame ();
808 tp
->step_frame_id
= get_frame_id (frame
);
812 find_pc_line_pc_range (stop_pc
,
813 &tp
->step_range_start
, &tp
->step_range_end
);
814 if (tp
->step_range_end
== 0)
817 if (find_pc_partial_function (stop_pc
, &name
,
818 &tp
->step_range_start
,
819 &tp
->step_range_end
) == 0)
820 error (_("Cannot find bounds of current function"));
822 target_terminal_ours ();
823 printf_filtered (_("\
824 Single stepping until exit from function %s, \n\
825 which has no line number information.\n"), name
);
830 /* Say we are stepping, but stop after one insn whatever it does. */
831 tp
->step_range_start
= tp
->step_range_end
= 1;
832 if (!skip_subroutines
)
834 Don't step over function calls, not even to functions lacking
836 tp
->step_over_calls
= STEP_OVER_NONE
;
839 if (skip_subroutines
)
840 tp
->step_over_calls
= STEP_OVER_ALL
;
842 tp
->step_multi
= (count
> 1);
843 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
845 if (!target_has_execution
846 || !inferior_thread ()->stop_step
)
850 do_cleanups (cleanups
);
853 /* In case of asynchronous target things get complicated, do only
854 one step for now, before returning control to the event loop. Let
855 the continuation figure out how many other steps we need to do,
856 and handle them one at the time, through step_once(). */
859 step_once (skip_subroutines
, single_inst
, count
, thread
);
860 /* We are running, and the continuation is installed. It will
861 disable the longjmp breakpoint as appropriate. */
862 discard_cleanups (cleanups
);
866 struct step_1_continuation_args
869 int skip_subroutines
;
874 /* Called after we are done with one step operation, to check whether
875 we need to step again, before we print the prompt and return control
876 to the user. If count is > 1, we will need to do one more call to
877 proceed(), via step_once(). Basically it is like step_once and
878 step_1_continuation are co-recursive. */
880 step_1_continuation (void *args
)
882 struct step_1_continuation_args
*a
= args
;
884 if (target_has_execution
)
886 struct thread_info
*tp
;
888 tp
= inferior_thread ();
889 if (tp
->step_multi
&& tp
->stop_step
)
891 /* There are more steps to make, and we did stop due to
892 ending a stepping range. Do another step. */
893 step_once (a
->skip_subroutines
, a
->single_inst
, a
->count
- 1, a
->thread
);
899 /* We either stopped for some reason that is not stepping, or there
900 are no further steps to make. Cleanup. */
901 if (!a
->single_inst
|| a
->skip_subroutines
)
902 delete_longjmp_breakpoint (a
->thread
);
905 /* Do just one step operation. If count >1 we will have to set up a
906 continuation to be done after the target stops (after this one
907 step). This is useful to implement the 'step n' kind of commands, in
908 case of asynchronous targets. We had to split step_1 into two parts,
909 one to be done before proceed() and one afterwards. This function is
910 called in case of step n with n>1, after the first step operation has
913 step_once (int skip_subroutines
, int single_inst
, int count
, int thread
)
915 struct frame_info
*frame
;
916 struct step_1_continuation_args
*args
;
920 /* Don't assume THREAD is a valid thread id. It is set to -1 if
921 the longjmp breakpoint was not required. Use the
922 INFERIOR_PTID thread instead, which is the same thread when
924 struct thread_info
*tp
= inferior_thread ();
925 clear_proceed_status ();
927 frame
= get_current_frame ();
928 if (!frame
) /* Avoid coredump here. Why tho? */
929 error (_("No current frame"));
930 tp
->step_frame_id
= get_frame_id (frame
);
934 find_pc_line_pc_range (stop_pc
,
935 &tp
->step_range_start
, &tp
->step_range_end
);
937 /* If we have no line info, switch to stepi mode. */
938 if (tp
->step_range_end
== 0 && step_stop_if_no_debug
)
940 tp
->step_range_start
= tp
->step_range_end
= 1;
942 else if (tp
->step_range_end
== 0)
945 if (find_pc_partial_function (stop_pc
, &name
,
946 &tp
->step_range_start
,
947 &tp
->step_range_end
) == 0)
948 error (_("Cannot find bounds of current function"));
950 target_terminal_ours ();
951 printf_filtered (_("\
952 Single stepping until exit from function %s, \n\
953 which has no line number information.\n"), name
);
958 /* Say we are stepping, but stop after one insn whatever it does. */
959 tp
->step_range_start
= tp
->step_range_end
= 1;
960 if (!skip_subroutines
)
962 Don't step over function calls, not even to functions lacking
964 tp
->step_over_calls
= STEP_OVER_NONE
;
967 if (skip_subroutines
)
968 tp
->step_over_calls
= STEP_OVER_ALL
;
970 tp
->step_multi
= (count
> 1);
971 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
973 args
= xmalloc (sizeof (*args
));
974 args
->skip_subroutines
= skip_subroutines
;
975 args
->single_inst
= single_inst
;
977 args
->thread
= thread
;
978 add_intermediate_continuation (tp
, step_1_continuation
, args
, xfree
);
983 /* Continue program at specified address. */
986 jump_command (char *arg
, int from_tty
)
989 struct symtabs_and_lines sals
;
990 struct symtab_and_line sal
;
996 ensure_not_running ();
998 /* Find out whether we must run in the background. */
1000 async_exec
= strip_bg_char (&arg
);
1002 /* If we must run in the background, but the target can't do it,
1004 if (async_exec
&& !target_can_async_p ())
1005 error (_("Asynchronous execution not supported on this target."));
1008 error_no_arg (_("starting address"));
1010 sals
= decode_line_spec_1 (arg
, 1);
1011 if (sals
.nelts
!= 1)
1013 error (_("Unreasonable jump request"));
1019 if (sal
.symtab
== 0 && sal
.pc
== 0)
1020 error (_("No source file has been specified."));
1022 resolve_sal_pc (&sal
); /* May error out */
1024 /* See if we are trying to jump to another function. */
1025 fn
= get_frame_function (get_current_frame ());
1026 sfn
= find_pc_function (sal
.pc
);
1027 if (fn
!= NULL
&& sfn
!= fn
)
1029 if (!query ("Line %d is not in `%s'. Jump anyway? ", sal
.line
,
1030 SYMBOL_PRINT_NAME (fn
)))
1032 error (_("Not confirmed."));
1039 fixup_symbol_section (sfn
, 0);
1040 if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn
)) &&
1041 !section_is_mapped (SYMBOL_OBJ_SECTION (sfn
)))
1043 if (!query ("WARNING!!! Destination is in unmapped overlay! Jump anyway? "))
1045 error (_("Not confirmed."));
1055 printf_filtered (_("Continuing at "));
1056 fputs_filtered (paddress (addr
), gdb_stdout
);
1057 printf_filtered (".\n");
1060 /* If we are not asked to run in the bg, then prepare to run in the
1061 foreground, synchronously. */
1062 if (!async_exec
&& target_can_async_p ())
1064 /* Simulate synchronous execution */
1065 async_disable_stdin ();
1068 clear_proceed_status ();
1069 proceed (addr
, TARGET_SIGNAL_0
, 0);
1073 /* Go to line or address in current procedure */
1075 go_command (char *line_no
, int from_tty
)
1077 if (line_no
== (char *) NULL
|| !*line_no
)
1078 printf_filtered (_("Usage: go <location>\n"));
1081 tbreak_command (line_no
, from_tty
);
1082 jump_command (line_no
, from_tty
);
1087 /* Continue program giving it specified signal. */
1090 signal_command (char *signum_exp
, int from_tty
)
1092 enum target_signal oursig
;
1095 dont_repeat (); /* Too dangerous. */
1097 ensure_not_running ();
1099 /* Find out whether we must run in the background. */
1100 if (signum_exp
!= NULL
)
1101 async_exec
= strip_bg_char (&signum_exp
);
1103 /* If we must run in the background, but the target can't do it,
1105 if (async_exec
&& !target_can_async_p ())
1106 error (_("Asynchronous execution not supported on this target."));
1108 /* If we are not asked to run in the bg, then prepare to run in the
1109 foreground, synchronously. */
1110 if (!async_exec
&& target_can_async_p ())
1112 /* Simulate synchronous execution. */
1113 async_disable_stdin ();
1117 error_no_arg (_("signal number"));
1119 /* It would be even slicker to make signal names be valid expressions,
1120 (the type could be "enum $signal" or some such), then the user could
1121 assign them to convenience variables. */
1122 oursig
= target_signal_from_name (signum_exp
);
1124 if (oursig
== TARGET_SIGNAL_UNKNOWN
)
1126 /* No, try numeric. */
1127 int num
= parse_and_eval_long (signum_exp
);
1130 oursig
= TARGET_SIGNAL_0
;
1132 oursig
= target_signal_from_command (num
);
1137 if (oursig
== TARGET_SIGNAL_0
)
1138 printf_filtered (_("Continuing with no signal.\n"));
1140 printf_filtered (_("Continuing with signal %s.\n"),
1141 target_signal_to_name (oursig
));
1144 clear_proceed_status ();
1145 /* "signal 0" should not get stuck if we are stopped at a breakpoint.
1146 FIXME: Neither should "signal foo" but when I tried passing
1147 (CORE_ADDR)-1 unconditionally I got a testsuite failure which I haven't
1148 tried to track down yet. */
1149 proceed (oursig
== TARGET_SIGNAL_0
? (CORE_ADDR
) -1 : stop_pc
, oursig
, 0);
1152 /* Proceed until we reach a different source line with pc greater than
1153 our current one or exit the function. We skip calls in both cases.
1155 Note that eventually this command should probably be changed so
1156 that only source lines are printed out when we hit the breakpoint
1157 we set. This may involve changes to wait_for_inferior and the
1158 proceed status code. */
1161 until_next_command (int from_tty
)
1163 struct frame_info
*frame
;
1165 struct symbol
*func
;
1166 struct symtab_and_line sal
;
1167 struct thread_info
*tp
= inferior_thread ();
1169 clear_proceed_status ();
1171 frame
= get_current_frame ();
1173 /* Step until either exited from this function or greater
1174 than the current line (if in symbolic section) or pc (if
1178 func
= find_pc_function (pc
);
1182 struct minimal_symbol
*msymbol
= lookup_minimal_symbol_by_pc (pc
);
1184 if (msymbol
== NULL
)
1185 error (_("Execution is not within a known function."));
1187 tp
->step_range_start
= SYMBOL_VALUE_ADDRESS (msymbol
);
1188 tp
->step_range_end
= pc
;
1192 sal
= find_pc_line (pc
, 0);
1194 tp
->step_range_start
= BLOCK_START (SYMBOL_BLOCK_VALUE (func
));
1195 tp
->step_range_end
= sal
.end
;
1198 tp
->step_over_calls
= STEP_OVER_ALL
;
1199 tp
->step_frame_id
= get_frame_id (frame
);
1201 tp
->step_multi
= 0; /* Only one call to proceed */
1203 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
1207 until_command (char *arg
, int from_tty
)
1211 if (!target_has_execution
)
1212 error (_("The program is not running."));
1214 /* Find out whether we must run in the background. */
1216 async_exec
= strip_bg_char (&arg
);
1218 /* If we must run in the background, but the target can't do it,
1220 if (async_exec
&& !target_can_async_p ())
1221 error (_("Asynchronous execution not supported on this target."));
1223 /* If we are not asked to run in the bg, then prepare to run in the
1224 foreground, synchronously. */
1225 if (!async_exec
&& target_can_async_p ())
1227 /* Simulate synchronous execution */
1228 async_disable_stdin ();
1232 until_break_command (arg
, from_tty
, 0);
1234 until_next_command (from_tty
);
1238 advance_command (char *arg
, int from_tty
)
1242 if (!target_has_execution
)
1243 error (_("The program is not running."));
1246 error_no_arg (_("a location"));
1248 /* Find out whether we must run in the background. */
1250 async_exec
= strip_bg_char (&arg
);
1252 /* If we must run in the background, but the target can't do it,
1254 if (async_exec
&& !target_can_async_p ())
1255 error (_("Asynchronous execution not supported on this target."));
1257 /* If we are not asked to run in the bg, then prepare to run in the
1258 foreground, synchronously. */
1259 if (!async_exec
&& target_can_async_p ())
1261 /* Simulate synchronous execution. */
1262 async_disable_stdin ();
1265 until_break_command (arg
, from_tty
, 1);
1268 /* Print the result of a function at the end of a 'finish' command. */
1271 print_return_value (struct type
*func_type
, struct type
*value_type
)
1273 struct gdbarch
*gdbarch
= current_gdbarch
;
1274 struct cleanup
*old_chain
;
1275 struct ui_stream
*stb
;
1276 struct value
*value
;
1278 CHECK_TYPEDEF (value_type
);
1279 gdb_assert (TYPE_CODE (value_type
) != TYPE_CODE_VOID
);
1281 /* FIXME: 2003-09-27: When returning from a nested inferior function
1282 call, it's possible (with no help from the architecture vector)
1283 to locate and return/print a "struct return" value. This is just
1284 a more complicated case of what is already being done in in the
1285 inferior function call code. In fact, when inferior function
1286 calls are made async, this will likely be made the norm. */
1288 switch (gdbarch_return_value (gdbarch
, func_type
, value_type
,
1291 case RETURN_VALUE_REGISTER_CONVENTION
:
1292 case RETURN_VALUE_ABI_RETURNS_ADDRESS
:
1293 case RETURN_VALUE_ABI_PRESERVES_ADDRESS
:
1294 value
= allocate_value (value_type
);
1295 gdbarch_return_value (gdbarch
, func_type
, value_type
, stop_registers
,
1296 value_contents_raw (value
), NULL
);
1298 case RETURN_VALUE_STRUCT_CONVENTION
:
1302 internal_error (__FILE__
, __LINE__
, _("bad switch"));
1307 struct value_print_options opts
;
1310 stb
= ui_out_stream_new (uiout
);
1311 old_chain
= make_cleanup_ui_out_stream_delete (stb
);
1312 ui_out_text (uiout
, "Value returned is ");
1313 ui_out_field_fmt (uiout
, "gdb-result-var", "$%d",
1314 record_latest_value (value
));
1315 ui_out_text (uiout
, " = ");
1316 get_raw_print_options (&opts
);
1317 value_print (value
, stb
->stream
, &opts
);
1318 ui_out_field_stream (uiout
, "return-value", stb
);
1319 ui_out_text (uiout
, "\n");
1320 do_cleanups (old_chain
);
1324 ui_out_text (uiout
, "Value returned has type: ");
1325 ui_out_field_string (uiout
, "return-type", TYPE_NAME (value_type
));
1326 ui_out_text (uiout
, ".");
1327 ui_out_text (uiout
, " Cannot determine contents\n");
1331 /* Stuff that needs to be done by the finish command after the target
1332 has stopped. In asynchronous mode, we wait for the target to stop
1333 in the call to poll or select in the event loop, so it is
1334 impossible to do all the stuff as part of the finish_command
1335 function itself. The only chance we have to complete this command
1336 is in fetch_inferior_event, which is called by the event loop as
1337 soon as it detects that the target has stopped. This function is
1338 called via the cmd_continuation pointer. */
1340 struct finish_command_continuation_args
1342 struct breakpoint
*breakpoint
;
1343 struct symbol
*function
;
1347 finish_command_continuation (void *arg
)
1349 struct finish_command_continuation_args
*a
= arg
;
1353 if (!ptid_equal (inferior_ptid
, null_ptid
)
1354 && target_has_execution
1355 && is_stopped (inferior_ptid
))
1356 bs
= inferior_thread ()->stop_bpstat
;
1358 if (bpstat_find_breakpoint (bs
, a
->breakpoint
) != NULL
1359 && a
->function
!= NULL
)
1361 struct type
*value_type
;
1363 value_type
= TYPE_TARGET_TYPE (SYMBOL_TYPE (a
->function
));
1365 internal_error (__FILE__
, __LINE__
,
1366 _("finish_command: function has no target type"));
1368 if (TYPE_CODE (value_type
) != TYPE_CODE_VOID
)
1369 print_return_value (SYMBOL_TYPE (a
->function
), value_type
);
1372 /* We suppress normal call of normal_stop observer and do it here so
1373 that that *stopped notification includes the return value. */
1374 /* NOTE: This is broken in non-stop mode. There is no guarantee the
1375 next stop will be in the same thread that we started doing a
1376 finish on. This suppressing (or some other replacement means)
1377 should be a thread property. */
1378 observer_notify_normal_stop (bs
);
1379 suppress_stop_observer
= 0;
1380 delete_breakpoint (a
->breakpoint
);
1384 finish_command_continuation_free_arg (void *arg
)
1386 /* NOTE: See finish_command_continuation. This would go away, if
1387 this suppressing is made a thread property. */
1388 suppress_stop_observer
= 0;
1392 /* finish_backward -- helper function for finish_command. */
1395 finish_backward (struct symbol
*function
)
1397 struct symtab_and_line sal
;
1398 struct thread_info
*tp
= inferior_thread ();
1399 struct breakpoint
*breakpoint
;
1400 struct cleanup
*old_chain
;
1401 CORE_ADDR func_addr
;
1404 if (find_pc_partial_function (get_frame_pc (get_current_frame ()),
1405 NULL
, &func_addr
, NULL
) == 0)
1406 internal_error (__FILE__
, __LINE__
,
1407 _("Finish: couldn't find function."));
1409 sal
= find_pc_line (func_addr
, 0);
1411 /* We don't need a return value. */
1412 tp
->proceed_to_finish
= 0;
1413 /* Special case: if we're sitting at the function entry point,
1414 then all we need to do is take a reverse singlestep. We
1415 don't need to set a breakpoint, and indeed it would do us
1418 Note that this can only happen at frame #0, since there's
1419 no way that a function up the stack can have a return address
1420 that's equal to its entry point. */
1422 if (sal
.pc
!= read_pc ())
1424 /* Set breakpoint and continue. */
1426 set_momentary_breakpoint (sal
,
1427 get_frame_id (get_selected_frame (NULL
)),
1429 /* Tell the breakpoint to keep quiet. We won't be done
1430 until we've done another reverse single-step. */
1431 make_breakpoint_silent (breakpoint
);
1432 old_chain
= make_cleanup_delete_breakpoint (breakpoint
);
1433 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
1434 /* We will be stopped when proceed returns. */
1435 back_up
= bpstat_find_breakpoint (tp
->stop_bpstat
, breakpoint
) != NULL
;
1436 do_cleanups (old_chain
);
1442 /* If in fact we hit the step-resume breakpoint (and not
1443 some other breakpoint), then we're almost there --
1444 we just need to back up by one more single-step. */
1445 tp
->step_range_start
= tp
->step_range_end
= 1;
1446 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 1);
1451 /* finish_forward -- helper function for finish_command. */
1454 finish_forward (struct symbol
*function
, struct frame_info
*frame
)
1456 struct symtab_and_line sal
;
1457 struct thread_info
*tp
= inferior_thread ();
1458 struct breakpoint
*breakpoint
;
1459 struct cleanup
*old_chain
;
1460 struct finish_command_continuation_args
*cargs
;
1462 sal
= find_pc_line (get_frame_pc (frame
), 0);
1463 sal
.pc
= get_frame_pc (frame
);
1465 breakpoint
= set_momentary_breakpoint (sal
, get_frame_id (frame
),
1468 old_chain
= make_cleanup_delete_breakpoint (breakpoint
);
1470 tp
->proceed_to_finish
= 1; /* We want stop_registers, please... */
1471 make_cleanup_restore_integer (&suppress_stop_observer
);
1472 suppress_stop_observer
= 1;
1473 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
1475 cargs
= xmalloc (sizeof (*cargs
));
1477 cargs
->breakpoint
= breakpoint
;
1478 cargs
->function
= function
;
1479 add_continuation (tp
, finish_command_continuation
, cargs
,
1480 finish_command_continuation_free_arg
);
1482 discard_cleanups (old_chain
);
1483 if (!target_can_async_p ())
1484 do_all_continuations ();
1487 /* "finish": Set a temporary breakpoint at the place the selected
1488 frame will return to, then continue. */
1491 finish_command (char *arg
, int from_tty
)
1493 struct frame_info
*frame
;
1494 struct symbol
*function
;
1498 /* Find out whether we must run in the background. */
1500 async_exec
= strip_bg_char (&arg
);
1502 /* If we must run in the background, but the target can't do it,
1504 if (async_exec
&& !target_can_async_p ())
1505 error (_("Asynchronous execution not supported on this target."));
1507 /* Don't try to async in reverse. */
1508 if (async_exec
&& execution_direction
== EXEC_REVERSE
)
1509 error (_("Asynchronous 'finish' not supported in reverse."));
1511 /* If we are not asked to run in the bg, then prepare to run in the
1512 foreground, synchronously. */
1513 if (!async_exec
&& target_can_async_p ())
1515 /* Simulate synchronous execution. */
1516 async_disable_stdin ();
1520 error (_("The \"finish\" command does not take any arguments."));
1521 if (!target_has_execution
)
1522 error (_("The program is not running."));
1524 frame
= get_prev_frame (get_selected_frame (_("No selected frame.")));
1526 error (_("\"finish\" not meaningful in the outermost frame."));
1528 clear_proceed_status ();
1530 /* Find the function we will return from. */
1532 function
= find_pc_function (get_frame_pc (get_selected_frame (NULL
)));
1534 /* Print info on the selected frame, including level number but not
1538 if (execution_direction
== EXEC_REVERSE
)
1539 printf_filtered (_("Run back to call of "));
1541 printf_filtered (_("Run till exit from "));
1543 print_stack_frame (get_selected_frame (NULL
), 1, LOCATION
);
1546 if (execution_direction
== EXEC_REVERSE
)
1547 finish_backward (function
);
1549 finish_forward (function
, frame
);
1554 program_info (char *args
, int from_tty
)
1558 struct thread_info
*tp
;
1561 if (!target_has_execution
)
1563 printf_filtered (_("The program being debugged is not being run.\n"));
1568 ptid
= inferior_ptid
;
1571 struct target_waitstatus ws
;
1572 get_last_target_status (&ptid
, &ws
);
1575 if (ptid_equal (ptid
, null_ptid
) || is_exited (ptid
))
1576 error (_("Invalid selected thread."));
1577 else if (is_running (ptid
))
1578 error (_("Selected thread is running."));
1580 tp
= find_thread_pid (ptid
);
1581 bs
= tp
->stop_bpstat
;
1582 stat
= bpstat_num (&bs
, &num
);
1584 target_files_info ();
1585 printf_filtered (_("Program stopped at %s.\n"),
1586 hex_string ((unsigned long) stop_pc
));
1588 printf_filtered (_("It stopped after being stepped.\n"));
1591 /* There may be several breakpoints in the same place, so this
1592 isn't as strange as it seems. */
1597 printf_filtered (_("\
1598 It stopped at a breakpoint that has since been deleted.\n"));
1601 printf_filtered (_("It stopped at breakpoint %d.\n"), num
);
1602 stat
= bpstat_num (&bs
, &num
);
1605 else if (tp
->stop_signal
!= TARGET_SIGNAL_0
)
1607 printf_filtered (_("It stopped with signal %s, %s.\n"),
1608 target_signal_to_name (tp
->stop_signal
),
1609 target_signal_to_string (tp
->stop_signal
));
1614 printf_filtered (_("\
1615 Type \"info stack\" or \"info registers\" for more information.\n"));
1620 environment_info (char *var
, int from_tty
)
1624 char *val
= get_in_environ (inferior_environ
, var
);
1627 puts_filtered (var
);
1628 puts_filtered (" = ");
1629 puts_filtered (val
);
1630 puts_filtered ("\n");
1634 puts_filtered ("Environment variable \"");
1635 puts_filtered (var
);
1636 puts_filtered ("\" not defined.\n");
1641 char **vector
= environ_vector (inferior_environ
);
1644 puts_filtered (*vector
++);
1645 puts_filtered ("\n");
1651 set_environment_command (char *arg
, int from_tty
)
1653 char *p
, *val
, *var
;
1657 error_no_arg (_("environment variable and value"));
1659 /* Find seperation between variable name and value */
1660 p
= (char *) strchr (arg
, '=');
1661 val
= (char *) strchr (arg
, ' ');
1663 if (p
!= 0 && val
!= 0)
1665 /* We have both a space and an equals. If the space is before the
1666 equals, walk forward over the spaces til we see a nonspace
1667 (possibly the equals). */
1672 /* Now if the = is after the char following the spaces,
1673 take the char following the spaces. */
1677 else if (val
!= 0 && p
== 0)
1681 error_no_arg (_("environment variable to set"));
1683 if (p
== 0 || p
[1] == 0)
1687 p
= arg
+ strlen (arg
); /* So that savestring below will work */
1691 /* Not setting variable value to null */
1693 while (*val
== ' ' || *val
== '\t')
1697 while (p
!= arg
&& (p
[-1] == ' ' || p
[-1] == '\t'))
1700 var
= savestring (arg
, p
- arg
);
1703 printf_filtered (_("\
1704 Setting environment variable \"%s\" to null value.\n"),
1706 set_in_environ (inferior_environ
, var
, "");
1709 set_in_environ (inferior_environ
, var
, val
);
1714 unset_environment_command (char *var
, int from_tty
)
1718 /* If there is no argument, delete all environment variables.
1719 Ask for confirmation if reading from the terminal. */
1720 if (!from_tty
|| query (_("Delete all environment variables? ")))
1722 free_environ (inferior_environ
);
1723 inferior_environ
= make_environ ();
1727 unset_in_environ (inferior_environ
, var
);
1730 /* Handle the execution path (PATH variable) */
1732 static const char path_var_name
[] = "PATH";
1735 path_info (char *args
, int from_tty
)
1737 puts_filtered ("Executable and object file path: ");
1738 puts_filtered (get_in_environ (inferior_environ
, path_var_name
));
1739 puts_filtered ("\n");
1742 /* Add zero or more directories to the front of the execution path. */
1745 path_command (char *dirname
, int from_tty
)
1750 env
= get_in_environ (inferior_environ
, path_var_name
);
1751 /* Can be null if path is not set */
1754 exec_path
= xstrdup (env
);
1755 mod_path (dirname
, &exec_path
);
1756 set_in_environ (inferior_environ
, path_var_name
, exec_path
);
1759 path_info ((char *) NULL
, from_tty
);
1763 /* Print out the machine register regnum. If regnum is -1, print all
1764 registers (print_all == 1) or all non-float and non-vector
1765 registers (print_all == 0).
1767 For most machines, having all_registers_info() print the
1768 register(s) one per line is good enough. If a different format is
1769 required, (eg, for MIPS or Pyramid 90x, which both have lots of
1770 regs), or there is an existing convention for showing all the
1771 registers, define the architecture method PRINT_REGISTERS_INFO to
1772 provide that format. */
1775 default_print_registers_info (struct gdbarch
*gdbarch
,
1776 struct ui_file
*file
,
1777 struct frame_info
*frame
,
1778 int regnum
, int print_all
)
1781 const int numregs
= gdbarch_num_regs (gdbarch
)
1782 + gdbarch_num_pseudo_regs (gdbarch
);
1783 gdb_byte buffer
[MAX_REGISTER_SIZE
];
1785 for (i
= 0; i
< numregs
; i
++)
1787 /* Decide between printing all regs, non-float / vector regs, or
1793 if (!gdbarch_register_reggroup_p (gdbarch
, i
, all_reggroup
))
1798 if (!gdbarch_register_reggroup_p (gdbarch
, i
, general_reggroup
))
1808 /* If the register name is empty, it is undefined for this
1809 processor, so don't display anything. */
1810 if (gdbarch_register_name (gdbarch
, i
) == NULL
1811 || *(gdbarch_register_name (gdbarch
, i
)) == '\0')
1814 fputs_filtered (gdbarch_register_name (gdbarch
, i
), file
);
1815 print_spaces_filtered (15 - strlen (gdbarch_register_name
1816 (gdbarch
, i
)), file
);
1818 /* Get the data in raw format. */
1819 if (! frame_register_read (frame
, i
, buffer
))
1821 fprintf_filtered (file
, "*value not available*\n");
1825 /* If virtual format is floating, print it that way, and in raw
1827 if (TYPE_CODE (register_type (gdbarch
, i
)) == TYPE_CODE_FLT
1828 || TYPE_CODE (register_type (gdbarch
, i
)) == TYPE_CODE_DECFLOAT
)
1831 struct value_print_options opts
;
1833 get_user_print_options (&opts
);
1835 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1836 file
, 0, &opts
, current_language
);
1838 fprintf_filtered (file
, "\t(raw 0x");
1839 for (j
= 0; j
< register_size (gdbarch
, i
); j
++)
1842 if (gdbarch_byte_order (gdbarch
) == BFD_ENDIAN_BIG
)
1845 idx
= register_size (gdbarch
, i
) - 1 - j
;
1846 fprintf_filtered (file
, "%02x", (unsigned char) buffer
[idx
]);
1848 fprintf_filtered (file
, ")");
1852 struct value_print_options opts
;
1854 /* Print the register in hex. */
1855 get_formatted_print_options (&opts
, 'x');
1857 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1860 /* If not a vector register, print it also according to its
1862 if (TYPE_VECTOR (register_type (gdbarch
, i
)) == 0)
1864 get_user_print_options (&opts
);
1866 fprintf_filtered (file
, "\t");
1867 val_print (register_type (gdbarch
, i
), buffer
, 0, 0,
1868 file
, 0, &opts
, current_language
);
1872 fprintf_filtered (file
, "\n");
1877 registers_info (char *addr_exp
, int fpregs
)
1879 struct frame_info
*frame
;
1880 struct gdbarch
*gdbarch
;
1881 int regnum
, numregs
;
1884 if (!target_has_registers
)
1885 error (_("The program has no registers now."));
1886 frame
= get_selected_frame (NULL
);
1887 gdbarch
= get_frame_arch (frame
);
1891 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
1896 while (*addr_exp
!= '\0')
1901 /* Keep skipping leading white space. */
1902 if (isspace ((*addr_exp
)))
1908 /* Discard any leading ``$''. Check that there is something
1909 resembling a register following it. */
1910 if (addr_exp
[0] == '$')
1912 if (isspace ((*addr_exp
)) || (*addr_exp
) == '\0')
1913 error (_("Missing register name"));
1915 /* Find the start/end of this register name/num/group. */
1917 while ((*addr_exp
) != '\0' && !isspace ((*addr_exp
)))
1921 /* Figure out what we've found and display it. */
1923 /* A register name? */
1925 int regnum
= user_reg_map_name_to_regnum (gdbarch
, start
, end
- start
);
1928 /* User registers lie completely outside of the range of
1929 normal registers. Catch them early so that the target
1931 if (regnum
>= gdbarch_num_regs (gdbarch
)
1932 + gdbarch_num_pseudo_regs (gdbarch
))
1934 struct value_print_options opts
;
1935 struct value
*val
= value_of_user_reg (regnum
, frame
);
1937 printf_filtered ("%s: ", start
);
1938 get_formatted_print_options (&opts
, 'x');
1939 print_scalar_formatted (value_contents (val
),
1940 check_typedef (value_type (val
)),
1941 &opts
, 0, gdb_stdout
);
1942 printf_filtered ("\n");
1945 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
1946 frame
, regnum
, fpregs
);
1951 /* A register number? (how portable is this one?). */
1954 int regnum
= strtol (start
, &endptr
, 0);
1957 && regnum
< gdbarch_num_regs (gdbarch
)
1958 + gdbarch_num_pseudo_regs (gdbarch
))
1960 gdbarch_print_registers_info (gdbarch
, gdb_stdout
,
1961 frame
, regnum
, fpregs
);
1966 /* A register group? */
1968 struct reggroup
*group
;
1969 for (group
= reggroup_next (gdbarch
, NULL
);
1971 group
= reggroup_next (gdbarch
, group
))
1973 /* Don't bother with a length check. Should the user
1974 enter a short register group name, go with the first
1975 group that matches. */
1976 if (strncmp (start
, reggroup_name (group
), end
- start
) == 0)
1983 regnum
< gdbarch_num_regs (gdbarch
)
1984 + gdbarch_num_pseudo_regs (gdbarch
);
1987 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, group
))
1988 gdbarch_print_registers_info (gdbarch
,
1996 /* Nothing matched. */
1997 error (_("Invalid register `%.*s'"), (int) (end
- start
), start
);
2002 all_registers_info (char *addr_exp
, int from_tty
)
2004 registers_info (addr_exp
, 1);
2008 nofp_registers_info (char *addr_exp
, int from_tty
)
2010 registers_info (addr_exp
, 0);
2014 print_vector_info (struct gdbarch
*gdbarch
, struct ui_file
*file
,
2015 struct frame_info
*frame
, const char *args
)
2017 if (gdbarch_print_vector_info_p (gdbarch
))
2018 gdbarch_print_vector_info (gdbarch
, file
, frame
, args
);
2022 int printed_something
= 0;
2025 regnum
< gdbarch_num_regs (gdbarch
)
2026 + gdbarch_num_pseudo_regs (gdbarch
);
2029 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, vector_reggroup
))
2031 printed_something
= 1;
2032 gdbarch_print_registers_info (gdbarch
, file
, frame
, regnum
, 1);
2035 if (!printed_something
)
2036 fprintf_filtered (file
, "No vector information\n");
2041 vector_info (char *args
, int from_tty
)
2043 if (!target_has_registers
)
2044 error (_("The program has no registers now."));
2046 print_vector_info (current_gdbarch
, gdb_stdout
,
2047 get_selected_frame (NULL
), args
);
2051 /* Used in `attach&' command. ARG is a point to an integer
2052 representing a process id. Proceed threads of this process iff
2053 they stopped due to debugger request, and when they did, they
2054 reported a clean stop (TARGET_SIGNAL_0). Do not proceed threads
2055 that have been explicitly been told to stop. */
2058 proceed_after_attach_callback (struct thread_info
*thread
,
2061 int pid
= * (int *) arg
;
2063 if (ptid_get_pid (thread
->ptid
) == pid
2064 && !is_exited (thread
->ptid
)
2065 && !is_executing (thread
->ptid
)
2066 && !thread
->stop_requested
2067 && thread
->stop_signal
== TARGET_SIGNAL_0
)
2069 switch_to_thread (thread
->ptid
);
2070 clear_proceed_status ();
2071 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
2078 proceed_after_attach (int pid
)
2080 /* Don't error out if the current thread is running, because
2081 there may be other stopped threads. */
2082 struct cleanup
*old_chain
;
2084 /* Backup current thread and selected frame. */
2085 old_chain
= make_cleanup_restore_current_thread ();
2087 iterate_over_threads (proceed_after_attach_callback
, &pid
);
2089 /* Restore selected ptid. */
2090 do_cleanups (old_chain
);
2095 * Should save/restore the tty state since it might be that the
2096 * program to be debugged was started on this tty and it wants
2097 * the tty in some state other than what we want. If it's running
2098 * on another terminal or without a terminal, then saving and
2099 * restoring the tty state is a harmless no-op.
2100 * This only needs to be done if we are attaching to a process.
2105 takes a program started up outside of gdb and ``attaches'' to it.
2106 This stops it cold in its tracks and allows us to start debugging it.
2107 and wait for the trace-trap that results from attaching. */
2110 attach_command_post_wait (char *args
, int from_tty
, int async_exec
)
2113 char *full_exec_path
= NULL
;
2114 struct inferior
*inferior
;
2116 inferior
= current_inferior ();
2117 inferior
->stop_soon
= NO_STOP_QUIETLY
;
2119 /* If no exec file is yet known, try to determine it from the
2121 exec_file
= (char *) get_exec_file (0);
2124 exec_file
= target_pid_to_exec_file (PIDGET (inferior_ptid
));
2127 /* It's possible we don't have a full path, but rather just a
2128 filename. Some targets, such as HP-UX, don't provide the
2131 Attempt to qualify the filename against the source path.
2132 (If that fails, we'll just fall back on the original
2133 filename. Not much more we can do...)
2135 if (!source_full_path_of (exec_file
, &full_exec_path
))
2136 full_exec_path
= savestring (exec_file
, strlen (exec_file
));
2138 exec_file_attach (full_exec_path
, from_tty
);
2139 symbol_file_add_main (full_exec_path
, from_tty
);
2144 reopen_exec_file ();
2148 /* Take any necessary post-attaching actions for this platform. */
2149 target_post_attach (PIDGET (inferior_ptid
));
2151 post_create_inferior (¤t_target
, from_tty
);
2153 /* Install inferior's terminal modes. */
2154 target_terminal_inferior ();
2158 /* The user requested an `attach&', so be sure to leave threads
2159 that didn't get a signal running. */
2161 /* Immediatelly resume all suspended threads of this inferior,
2162 and this inferior only. This should have no effect on
2163 already running threads. If a thread has been stopped with a
2164 signal, leave it be. */
2166 proceed_after_attach (inferior
->pid
);
2169 if (inferior_thread ()->stop_signal
== TARGET_SIGNAL_0
)
2171 clear_proceed_status ();
2172 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
2178 /* The user requested a plain `attach', so be sure to leave
2179 the inferior stopped. */
2181 if (target_can_async_p ())
2182 async_enable_stdin ();
2184 /* At least the current thread is already stopped. */
2186 /* In all-stop, by definition, all threads have to be already
2187 stopped at this point. In non-stop, however, although the
2188 selected thread is stopped, others may still be executing.
2189 Be sure to explicitly stop all threads of the process. This
2190 should have no effect on already stopped threads. */
2192 target_stop (pid_to_ptid (inferior
->pid
));
2194 /* Tell the user/frontend where we're stopped. */
2196 if (deprecated_attach_hook
)
2197 deprecated_attach_hook ();
2201 struct attach_command_continuation_args
2209 attach_command_continuation (void *args
)
2211 struct attach_command_continuation_args
*a
= args
;
2212 attach_command_post_wait (a
->args
, a
->from_tty
, a
->async_exec
);
2216 attach_command_continuation_free_args (void *args
)
2218 struct attach_command_continuation_args
*a
= args
;
2224 attach_command (char *args
, int from_tty
)
2227 char *full_exec_path
= NULL
;
2230 dont_repeat (); /* Not for the faint of heart */
2232 if (target_supports_multi_process ())
2233 /* Don't complain if we can be attached to multiple processes. */
2235 else if (target_has_execution
)
2237 if (query ("A program is being debugged already. Kill it? "))
2240 error (_("Not killed."));
2243 /* Clean up any leftovers from other runs. Some other things from
2244 this function should probably be moved into target_pre_inferior. */
2245 target_pre_inferior (from_tty
);
2247 if (non_stop
&& !target_supports_non_stop ())
2248 error (_("Cannot attach to this target in non-stop mode"));
2252 async_exec
= strip_bg_char (&args
);
2254 /* If we get a request for running in the bg but the target
2255 doesn't support it, error out. */
2256 if (async_exec
&& !target_can_async_p ())
2257 error (_("Asynchronous execution not supported on this target."));
2260 /* If we don't get a request of running in the bg, then we need
2261 to simulate synchronous (fg) execution. */
2262 if (!async_exec
&& target_can_async_p ())
2264 /* Simulate synchronous execution */
2265 async_disable_stdin ();
2268 target_attach (args
, from_tty
);
2270 /* Set up the "saved terminal modes" of the inferior
2271 based on what modes we are starting it with. */
2272 target_terminal_init ();
2274 /* Set up execution context to know that we should return from
2275 wait_for_inferior as soon as the target reports a stop. */
2276 init_wait_for_inferior ();
2277 clear_proceed_status ();
2281 /* If we find that the current thread isn't stopped, explicitly
2282 do so now, because we're going to install breakpoints and
2286 /* The user requested an `attach&'; stop just one thread. */
2287 target_stop (inferior_ptid
);
2289 /* The user requested an `attach', so stop all threads of this
2291 target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid
)));
2294 /* Some system don't generate traps when attaching to inferior.
2295 E.g. Mach 3 or GNU hurd. */
2296 if (!target_attach_no_wait
)
2298 struct inferior
*inferior
= current_inferior ();
2300 /* Careful here. See comments in inferior.h. Basically some
2301 OSes don't ignore SIGSTOPs on continue requests anymore. We
2302 need a way for handle_inferior_event to reset the stop_signal
2303 variable after an attach, and this is what
2304 STOP_QUIETLY_NO_SIGSTOP is for. */
2305 inferior
->stop_soon
= STOP_QUIETLY_NO_SIGSTOP
;
2307 if (target_can_async_p ())
2309 /* sync_execution mode. Wait for stop. */
2310 struct attach_command_continuation_args
*a
;
2312 a
= xmalloc (sizeof (*a
));
2313 a
->args
= xstrdup (args
);
2314 a
->from_tty
= from_tty
;
2315 a
->async_exec
= async_exec
;
2316 add_continuation (inferior_thread (),
2317 attach_command_continuation
, a
,
2318 attach_command_continuation_free_args
);
2322 wait_for_inferior (0);
2325 attach_command_post_wait (args
, from_tty
, async_exec
);
2330 * takes a program previously attached to and detaches it.
2331 * The program resumes execution and will no longer stop
2332 * on signals, etc. We better not have left any breakpoints
2333 * in the program or it'll die when it hits one. For this
2334 * to work, it may be necessary for the process to have been
2335 * previously attached. It *might* work if the program was
2336 * started via the normal ptrace (PTRACE_TRACEME).
2340 detach_command (char *args
, int from_tty
)
2342 dont_repeat (); /* Not for the faint of heart. */
2343 target_detach (args
, from_tty
);
2344 no_shared_libraries (NULL
, from_tty
);
2346 /* If the current target interface claims there's still execution,
2347 then don't mess with threads of other processes. */
2348 if (!target_has_execution
)
2349 init_thread_list ();
2351 if (deprecated_detach_hook
)
2352 deprecated_detach_hook ();
2355 /* Disconnect from the current target without resuming it (leaving it
2356 waiting for a debugger).
2358 We'd better not have left any breakpoints in the program or the
2359 next debugger will get confused. Currently only supported for some
2360 remote targets, since the normal attach mechanisms don't work on
2361 stopped processes on some native platforms (e.g. GNU/Linux). */
2364 disconnect_command (char *args
, int from_tty
)
2366 dont_repeat (); /* Not for the faint of heart */
2367 target_disconnect (args
, from_tty
);
2368 no_shared_libraries (NULL
, from_tty
);
2369 init_thread_list ();
2370 if (deprecated_detach_hook
)
2371 deprecated_detach_hook ();
2375 interrupt_target_1 (int all_threads
)
2379 ptid
= minus_one_ptid
;
2381 ptid
= inferior_ptid
;
2384 /* Tag the thread as having been explicitly requested to stop, so
2385 other parts of gdb know not to resume this thread automatically,
2386 if it was stopped due to an internal event. Limit this to
2387 non-stop mode, as when debugging a multi-threaded application in
2388 all-stop mode, we will only get one stop event --- it's undefined
2389 which thread will report the event. */
2391 set_stop_requested (ptid
, 1);
2394 /* Stop the execution of the target while running in async mode, in
2395 the backgound. In all-stop, stop the whole process. In non-stop
2396 mode, stop the current thread only by default, or stop all threads
2397 if the `-a' switch is used. */
2399 /* interrupt [-a] */
2401 interrupt_target_command (char *args
, int from_tty
)
2403 if (target_can_async_p ())
2405 int all_threads
= 0;
2407 dont_repeat (); /* Not for the faint of heart */
2410 && strncmp (args
, "-a", sizeof ("-a") - 1) == 0)
2413 if (!non_stop
&& all_threads
)
2414 error (_("-a is meaningless in all-stop mode."));
2416 interrupt_target_1 (all_threads
);
2421 print_float_info (struct gdbarch
*gdbarch
, struct ui_file
*file
,
2422 struct frame_info
*frame
, const char *args
)
2424 if (gdbarch_print_float_info_p (gdbarch
))
2425 gdbarch_print_float_info (gdbarch
, file
, frame
, args
);
2429 int printed_something
= 0;
2432 regnum
< gdbarch_num_regs (gdbarch
)
2433 + gdbarch_num_pseudo_regs (gdbarch
);
2436 if (gdbarch_register_reggroup_p (gdbarch
, regnum
, float_reggroup
))
2438 printed_something
= 1;
2439 gdbarch_print_registers_info (gdbarch
, file
, frame
, regnum
, 1);
2442 if (!printed_something
)
2443 fprintf_filtered (file
, "\
2444 No floating-point info available for this processor.\n");
2449 float_info (char *args
, int from_tty
)
2451 if (!target_has_registers
)
2452 error (_("The program has no registers now."));
2454 print_float_info (current_gdbarch
, gdb_stdout
,
2455 get_selected_frame (NULL
), args
);
2459 unset_command (char *args
, int from_tty
)
2461 printf_filtered (_("\
2462 \"unset\" must be followed by the name of an unset subcommand.\n"));
2463 help_list (unsetlist
, "unset ", -1, gdb_stdout
);
2467 _initialize_infcmd (void)
2469 struct cmd_list_element
*c
= NULL
;
2471 /* add the filename of the terminal connected to inferior I/O */
2472 add_setshow_filename_cmd ("inferior-tty", class_run
,
2473 &inferior_io_terminal
, _("\
2474 Set terminal for future runs of program being debugged."), _("\
2475 Show terminal for future runs of program being debugged."), _("\
2476 Usage: set inferior-tty /dev/pts/1"), NULL
, NULL
, &setlist
, &showlist
);
2477 add_com_alias ("tty", "set inferior-tty", class_alias
, 0);
2479 add_setshow_optional_filename_cmd ("args", class_run
,
2480 &inferior_args
, _("\
2481 Set argument list to give program being debugged when it is started."), _("\
2482 Show argument list to give program being debugged when it is started."), _("\
2483 Follow this command with any number of args, to be passed to the program."),
2486 &setlist
, &showlist
);
2488 c
= add_cmd ("environment", no_class
, environment_info
, _("\
2489 The environment to give the program, or one variable's value.\n\
2490 With an argument VAR, prints the value of environment variable VAR to\n\
2491 give the program being debugged. With no arguments, prints the entire\n\
2492 environment to be given to the program."), &showlist
);
2493 set_cmd_completer (c
, noop_completer
);
2495 add_prefix_cmd ("unset", no_class
, unset_command
,
2496 _("Complement to certain \"set\" commands."),
2497 &unsetlist
, "unset ", 0, &cmdlist
);
2499 c
= add_cmd ("environment", class_run
, unset_environment_command
, _("\
2500 Cancel environment variable VAR for the program.\n\
2501 This does not affect the program until the next \"run\" command."),
2503 set_cmd_completer (c
, noop_completer
);
2505 c
= add_cmd ("environment", class_run
, set_environment_command
, _("\
2506 Set environment variable value to give the program.\n\
2507 Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\
2508 VALUES of environment variables are uninterpreted strings.\n\
2509 This does not affect the program until the next \"run\" command."),
2511 set_cmd_completer (c
, noop_completer
);
2513 c
= add_com ("path", class_files
, path_command
, _("\
2514 Add directory DIR(s) to beginning of search path for object files.\n\
2515 $cwd in the path means the current working directory.\n\
2516 This path is equivalent to the $PATH shell variable. It is a list of\n\
2517 directories, separated by colons. These directories are searched to find\n\
2518 fully linked executable files and separately compiled object files as needed."));
2519 set_cmd_completer (c
, filename_completer
);
2521 c
= add_cmd ("paths", no_class
, path_info
, _("\
2522 Current search path for finding 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."),
2528 set_cmd_completer (c
, noop_completer
);
2530 add_com ("attach", class_run
, attach_command
, _("\
2531 Attach to a process or file outside of GDB.\n\
2532 This command attaches to another target, of the same type as your last\n\
2533 \"target\" command (\"info files\" will show your target stack).\n\
2534 The command may take as argument a process id or a device file.\n\
2535 For a process id, you must have permission to send the process a signal,\n\
2536 and it must have the same effective uid as the debugger.\n\
2537 When using \"attach\" with a process id, the debugger finds the\n\
2538 program running in the process, looking first in the current working\n\
2539 directory, or (if not found there) using the source file search path\n\
2540 (see the \"directory\" command). You can also use the \"file\" command\n\
2541 to specify the program, and to load its symbol table."));
2543 add_prefix_cmd ("detach", class_run
, detach_command
, _("\
2544 Detach a process or file previously attached.\n\
2545 If a process, it is no longer traced, and it continues its execution. If\n\
2546 you were debugging a file, the file is closed and gdb no longer accesses it."),
2547 &detachlist
, "detach ", 0, &cmdlist
);
2549 add_com ("disconnect", class_run
, disconnect_command
, _("\
2550 Disconnect from a target.\n\
2551 The target will wait for another debugger to connect. Not available for\n\
2554 add_com ("signal", class_run
, signal_command
, _("\
2555 Continue program giving it signal specified by the argument.\n\
2556 An argument of \"0\" means continue program without giving it a signal."));
2558 add_com ("stepi", class_run
, stepi_command
, _("\
2559 Step one instruction exactly.\n\
2560 Argument N means do this N times (or till program stops for another reason)."));
2561 add_com_alias ("si", "stepi", class_alias
, 0);
2563 add_com ("nexti", class_run
, nexti_command
, _("\
2564 Step one instruction, but proceed through subroutine calls.\n\
2565 Argument N means do this N times (or till program stops for another reason)."));
2566 add_com_alias ("ni", "nexti", class_alias
, 0);
2568 add_com ("finish", class_run
, finish_command
, _("\
2569 Execute until selected stack frame returns.\n\
2570 Upon return, the value returned is printed and put in the value history."));
2571 add_com_alias ("fin", "finish", class_run
, 1);
2573 add_com ("next", class_run
, next_command
, _("\
2574 Step program, proceeding through subroutine calls.\n\
2575 Like the \"step\" command as long as subroutine calls do not happen;\n\
2576 when they do, the call is treated as one instruction.\n\
2577 Argument N means do this N times (or till program stops for another reason)."));
2578 add_com_alias ("n", "next", class_run
, 1);
2580 add_com_alias ("S", "next", class_run
, 1);
2582 add_com ("step", class_run
, step_command
, _("\
2583 Step program until it reaches a different source line.\n\
2584 Argument N means do this N times (or till program stops for another reason)."));
2585 add_com_alias ("s", "step", class_run
, 1);
2587 c
= add_com ("until", class_run
, until_command
, _("\
2588 Execute until the program reaches a source line greater than the current\n\
2589 or a specified location (same args as break command) within the current frame."));
2590 set_cmd_completer (c
, location_completer
);
2591 add_com_alias ("u", "until", class_run
, 1);
2593 c
= add_com ("advance", class_run
, advance_command
, _("\
2594 Continue the program up to the given location (same form as args for break command).\n\
2595 Execution will also stop upon exit from the current stack frame."));
2596 set_cmd_completer (c
, location_completer
);
2598 c
= add_com ("jump", class_run
, jump_command
, _("\
2599 Continue program being debugged at specified line or address.\n\
2600 Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\
2601 for an address to start at."));
2602 set_cmd_completer (c
, location_completer
);
2606 c
= add_com ("go", class_run
, go_command
, _("\
2607 Usage: go <location>\n\
2608 Continue program being debugged, stopping at specified line or \n\
2610 Give as argument either LINENUM or *ADDR, where ADDR is an \n\
2611 expression for an address to start at.\n\
2612 This command is a combination of tbreak and jump."));
2613 set_cmd_completer (c
, location_completer
);
2617 add_com_alias ("g", "go", class_run
, 1);
2619 c
= add_com ("continue", class_run
, continue_command
, _("\
2620 Continue program being debugged, after signal or breakpoint.\n\
2621 If proceeding from breakpoint, a number N may be used as an argument,\n\
2622 which means to set the ignore count of that breakpoint to N - 1 (so that\n\
2623 the breakpoint won't break until the Nth time it is reached).\n\
2625 If non-stop mode is enabled, continue only the current thread,\n\
2626 otherwise all the threads in the program are continued. To \n\
2627 continue all stopped threads in non-stop mode, use the -a option.\n\
2628 Specifying -a and an ignore count simultaneously is an error."));
2629 add_com_alias ("c", "cont", class_run
, 1);
2630 add_com_alias ("fg", "cont", class_run
, 1);
2632 c
= add_com ("run", class_run
, run_command
, _("\
2633 Start debugged program. You may specify arguments to give it.\n\
2634 Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\
2635 Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\
2636 With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\
2637 To cancel previous arguments and run with no arguments,\n\
2638 use \"set args\" without arguments."));
2639 set_cmd_completer (c
, filename_completer
);
2640 add_com_alias ("r", "run", class_run
, 1);
2642 add_com ("R", class_run
, run_no_args_command
,
2643 _("Start debugged program with no arguments."));
2645 c
= add_com ("start", class_run
, start_command
, _("\
2646 Run the debugged program until the beginning of the main procedure.\n\
2647 You may specify arguments to give to your program, just as with the\n\
2648 \"run\" command."));
2649 set_cmd_completer (c
, filename_completer
);
2651 c
= add_com ("interrupt", class_run
, interrupt_target_command
,
2652 _("Interrupt the execution of the debugged program.\n\
2653 If non-stop mode is enabled, interrupt only the current thread,\n\
2654 otherwise all the threads in the program are stopped. To \n\
2655 interrupt all running threads in non-stop mode, use the -a option."));
2657 add_info ("registers", nofp_registers_info
, _("\
2658 List of integer registers and their contents, for selected stack frame.\n\
2659 Register name as argument means describe only that register."));
2660 add_info_alias ("r", "registers", 1);
2663 add_com ("lr", class_info
, nofp_registers_info
, _("\
2664 List of integer registers and their contents, for selected stack frame.\n\
2665 Register name as argument means describe only that register."));
2666 add_info ("all-registers", all_registers_info
, _("\
2667 List of all registers and their contents, for selected stack frame.\n\
2668 Register name as argument means describe only that register."));
2670 add_info ("program", program_info
,
2671 _("Execution status of the program."));
2673 add_info ("float", float_info
,
2674 _("Print the status of the floating point unit\n"));
2676 add_info ("vector", vector_info
,
2677 _("Print the status of the vector unit\n"));
2679 inferior_environ
= make_environ ();
2680 init_environ (inferior_environ
);