1 /* Generic remote debugging interface for simulators.
3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
4 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
6 Contributed by Cygnus Support.
7 Steve Chamberlain (sac@cygnus.com).
9 This file is part of GDB.
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 Boston, MA 02110-1301, USA. */
29 #include "gdb_string.h"
38 #include "gdb/callback.h"
39 #include "gdb/remote-sim.h"
42 #include "gdb_assert.h"
43 #include "sim-regno.h"
44 #include "arch-utils.h"
45 #include "readline/readline.h"
49 extern void _initialize_remote_sim (void);
51 static void dump_mem (char *buf
, int len
);
53 static void init_callbacks (void);
55 static void end_callbacks (void);
57 static int gdb_os_write_stdout (host_callback
*, const char *, int);
59 static void gdb_os_flush_stdout (host_callback
*);
61 static int gdb_os_write_stderr (host_callback
*, const char *, int);
63 static void gdb_os_flush_stderr (host_callback
*);
65 static int gdb_os_poll_quit (host_callback
*);
67 /* printf_filtered is depreciated */
68 static void gdb_os_printf_filtered (host_callback
*, const char *, ...);
70 static void gdb_os_vprintf_filtered (host_callback
*, const char *, va_list);
72 static void gdb_os_evprintf_filtered (host_callback
*, const char *, va_list);
74 static void gdb_os_error (host_callback
*, const char *, ...);
76 static void gdbsim_fetch_register (struct regcache
*regcache
, int regno
);
78 static void gdbsim_store_register (struct regcache
*regcache
, int regno
);
80 static void gdbsim_kill (void);
82 static void gdbsim_load (char *prog
, int fromtty
);
84 static void gdbsim_open (char *args
, int from_tty
);
86 static void gdbsim_close (int quitting
);
88 static void gdbsim_detach (char *args
, int from_tty
);
90 static void gdbsim_resume (ptid_t ptid
, int step
, enum target_signal siggnal
);
92 static ptid_t
gdbsim_wait (ptid_t ptid
, struct target_waitstatus
*status
);
94 static void gdbsim_prepare_to_store (struct regcache
*regcache
);
96 static void gdbsim_files_info (struct target_ops
*target
);
98 static void gdbsim_mourn_inferior (void);
100 static void gdbsim_stop (void);
102 void simulator_command (char *args
, int from_tty
);
104 /* Naming convention:
106 sim_* are the interface to the simulator (see remote-sim.h).
107 gdbsim_* are stuff which is internal to gdb. */
109 /* Forward data declarations */
110 extern struct target_ops gdbsim_ops
;
112 static int program_loaded
= 0;
114 /* We must keep track of whether the simulator has been opened or not because
115 GDB can call a target's close routine twice, but sim_close doesn't allow
116 this. We also need to record the result of sim_open so we can pass it
117 back to the other sim_foo routines. */
118 static SIM_DESC gdbsim_desc
= 0;
121 dump_mem (char *buf
, int len
)
125 if (len
== 8 || len
== 4)
128 memcpy (l
, buf
, len
);
129 printf_filtered ("\t0x%lx", l
[0]);
131 printf_filtered (" 0x%lx", l
[1]);
132 printf_filtered ("\n");
137 printf_filtered ("\t");
138 for (i
= 0; i
< len
; i
++)
139 printf_filtered ("0x%x ", buf
[i
]);
140 printf_filtered ("\n");
145 static host_callback gdb_callback
;
146 static int callbacks_initialized
= 0;
148 /* Initialize gdb_callback. */
151 init_callbacks (void)
153 if (!callbacks_initialized
)
155 gdb_callback
= default_callback
;
156 gdb_callback
.init (&gdb_callback
);
157 gdb_callback
.write_stdout
= gdb_os_write_stdout
;
158 gdb_callback
.flush_stdout
= gdb_os_flush_stdout
;
159 gdb_callback
.write_stderr
= gdb_os_write_stderr
;
160 gdb_callback
.flush_stderr
= gdb_os_flush_stderr
;
161 gdb_callback
.printf_filtered
= gdb_os_printf_filtered
;
162 gdb_callback
.vprintf_filtered
= gdb_os_vprintf_filtered
;
163 gdb_callback
.evprintf_filtered
= gdb_os_evprintf_filtered
;
164 gdb_callback
.error
= gdb_os_error
;
165 gdb_callback
.poll_quit
= gdb_os_poll_quit
;
166 gdb_callback
.magic
= HOST_CALLBACK_MAGIC
;
167 callbacks_initialized
= 1;
171 /* Release callbacks (free resources used by them). */
176 if (callbacks_initialized
)
178 gdb_callback
.shutdown (&gdb_callback
);
179 callbacks_initialized
= 0;
183 /* GDB version of os_write_stdout callback. */
186 gdb_os_write_stdout (host_callback
*p
, const char *buf
, int len
)
191 ui_file_write (gdb_stdtarg
, buf
, len
);
195 /* GDB version of os_flush_stdout callback. */
198 gdb_os_flush_stdout (host_callback
*p
)
200 gdb_flush (gdb_stdtarg
);
203 /* GDB version of os_write_stderr callback. */
206 gdb_os_write_stderr (host_callback
*p
, const char *buf
, int len
)
211 for (i
= 0; i
< len
; i
++)
215 fputs_unfiltered (b
, gdb_stdtargerr
);
220 /* GDB version of os_flush_stderr callback. */
223 gdb_os_flush_stderr (host_callback
*p
)
225 gdb_flush (gdb_stdtargerr
);
228 /* GDB version of printf_filtered callback. */
231 gdb_os_printf_filtered (host_callback
* p
, const char *format
,...)
234 va_start (args
, format
);
236 vfprintf_filtered (gdb_stdout
, format
, args
);
241 /* GDB version of error vprintf_filtered. */
244 gdb_os_vprintf_filtered (host_callback
* p
, const char *format
, va_list ap
)
246 vfprintf_filtered (gdb_stdout
, format
, ap
);
249 /* GDB version of error evprintf_filtered. */
252 gdb_os_evprintf_filtered (host_callback
* p
, const char *format
, va_list ap
)
254 vfprintf_filtered (gdb_stderr
, format
, ap
);
257 /* GDB version of error callback. */
260 gdb_os_error (host_callback
* p
, const char *format
,...)
262 if (deprecated_error_hook
)
263 (*deprecated_error_hook
) ();
267 va_start (args
, format
);
268 verror (format
, args
);
274 one2one_register_sim_regno (int regnum
)
276 /* Only makes sense to supply raw registers. */
277 gdb_assert (regnum
>= 0 && regnum
< gdbarch_num_regs (current_gdbarch
));
282 gdbsim_fetch_register (struct regcache
*regcache
, int regno
)
286 for (regno
= 0; regno
< gdbarch_num_regs (current_gdbarch
); regno
++)
287 gdbsim_fetch_register (regcache
, regno
);
291 switch (gdbarch_register_sim_regno (current_gdbarch
, regno
))
293 case LEGACY_SIM_REGNO_IGNORE
:
295 case SIM_REGNO_DOES_NOT_EXIST
:
297 /* For moment treat a `does not exist' register the same way
298 as an ``unavailable'' register. */
299 char buf
[MAX_REGISTER_SIZE
];
301 memset (buf
, 0, MAX_REGISTER_SIZE
);
302 regcache_raw_supply (regcache
, regno
, buf
);
308 static int warn_user
= 1;
309 char buf
[MAX_REGISTER_SIZE
];
311 gdb_assert (regno
>= 0 && regno
< gdbarch_num_regs (current_gdbarch
));
312 memset (buf
, 0, MAX_REGISTER_SIZE
);
313 nr_bytes
= sim_fetch_register (gdbsim_desc
,
314 gdbarch_register_sim_regno
315 (current_gdbarch
, regno
),
317 register_size (current_gdbarch
, regno
));
318 if (nr_bytes
> 0 && nr_bytes
!= register_size (current_gdbarch
, regno
) && warn_user
)
320 fprintf_unfiltered (gdb_stderr
,
321 "Size of register %s (%d/%d) incorrect (%d instead of %d))",
322 gdbarch_register_name (current_gdbarch
, regno
),
324 gdbarch_register_sim_regno
325 (current_gdbarch
, regno
),
326 nr_bytes
, register_size (current_gdbarch
, regno
));
329 /* FIXME: cagney/2002-05-27: Should check `nr_bytes == 0'
330 indicating that GDB and the SIM have different ideas about
331 which registers are fetchable. */
332 /* Else if (nr_bytes < 0): an old simulator, that doesn't
333 think to return the register size. Just assume all is ok. */
334 regcache_raw_supply (regcache
, regno
, buf
);
337 printf_filtered ("gdbsim_fetch_register: %d", regno
);
338 /* FIXME: We could print something more intelligible. */
339 dump_mem (buf
, register_size (current_gdbarch
, regno
));
348 gdbsim_store_register (struct regcache
*regcache
, int regno
)
352 for (regno
= 0; regno
< gdbarch_num_regs (current_gdbarch
); regno
++)
353 gdbsim_store_register (regcache
, regno
);
356 else if (gdbarch_register_sim_regno (current_gdbarch
, regno
) >= 0)
358 char tmp
[MAX_REGISTER_SIZE
];
360 regcache_cooked_read (regcache
, regno
, tmp
);
361 nr_bytes
= sim_store_register (gdbsim_desc
,
362 gdbarch_register_sim_regno
363 (current_gdbarch
, regno
),
364 tmp
, register_size (current_gdbarch
, regno
));
365 if (nr_bytes
> 0 && nr_bytes
!= register_size (current_gdbarch
, regno
))
366 internal_error (__FILE__
, __LINE__
,
367 _("Register size different to expected"));
368 /* FIXME: cagney/2002-05-27: Should check `nr_bytes == 0'
369 indicating that GDB and the SIM have different ideas about
370 which registers are fetchable. */
373 printf_filtered ("gdbsim_store_register: %d", regno
);
374 /* FIXME: We could print something more intelligible. */
375 dump_mem (tmp
, register_size (current_gdbarch
, regno
));
380 /* Kill the running program. This may involve closing any open files
381 and releasing other resources acquired by the simulated program. */
387 printf_filtered ("gdbsim_kill\n");
389 /* There is no need to `kill' running simulator - the simulator is
390 not running. Mourning it is enough. */
391 target_mourn_inferior ();
394 /* Load an executable file into the target process. This is expected to
395 not only bring new code into the target process, but also to update
396 GDB's symbol tables to match. */
399 gdbsim_load (char *args
, int fromtty
)
401 char **argv
= buildargv (args
);
407 make_cleanup_freeargv (argv
);
409 prog
= tilde_expand (argv
[0]);
412 error (_("GDB sim does not yet support a load offset."));
415 printf_filtered ("gdbsim_load: prog \"%s\"\n", prog
);
417 /* FIXME: We will print two messages on error.
418 Need error to either not print anything if passed NULL or need
419 another routine that doesn't take any arguments. */
420 if (sim_load (gdbsim_desc
, prog
, NULL
, fromtty
) == SIM_RC_FAIL
)
421 error (_("unable to load program"));
423 /* FIXME: If a load command should reset the targets registers then
424 a call to sim_create_inferior() should go here. */
430 /* Start an inferior process and set inferior_ptid to its pid.
431 EXEC_FILE is the file to run.
432 ARGS is a string containing the arguments to the program.
433 ENV is the environment vector to pass. Errors reported with error().
434 On VxWorks and various standalone systems, we ignore exec_file. */
435 /* This is called not only when we first attach, but also when the
436 user types "run" after having attached. */
439 gdbsim_create_inferior (char *exec_file
, char *args
, char **env
, int from_tty
)
442 char *arg_buf
, **argv
;
444 if (exec_file
== 0 || exec_bfd
== 0)
445 warning (_("No executable file specified."));
447 warning (_("No program loaded."));
450 printf_filtered ("gdbsim_create_inferior: exec_file \"%s\", args \"%s\"\n",
451 (exec_file
? exec_file
: "(NULL)"),
455 remove_breakpoints ();
456 init_wait_for_inferior ();
458 if (exec_file
!= NULL
)
460 len
= strlen (exec_file
) + 1 + strlen (args
) + 1 + /*slop */ 10;
461 arg_buf
= (char *) alloca (len
);
463 strcat (arg_buf
, exec_file
);
464 strcat (arg_buf
, " ");
465 strcat (arg_buf
, args
);
466 argv
= buildargv (arg_buf
);
467 make_cleanup_freeargv (argv
);
471 sim_create_inferior (gdbsim_desc
, exec_bfd
, argv
, env
);
473 inferior_ptid
= pid_to_ptid (42);
474 target_mark_running (&gdbsim_ops
);
475 insert_breakpoints (); /* Needed to get correct instruction in cache */
477 clear_proceed_status ();
480 /* The open routine takes the rest of the parameters from the command,
481 and (if successful) pushes a new target onto the stack.
482 Targets should supply this routine, if only to provide an error message. */
483 /* Called when selecting the simulator. EG: (gdb) target sim name. */
486 gdbsim_open (char *args
, int from_tty
)
493 printf_filtered ("gdbsim_open: args \"%s\"\n", args
? args
: "(null)");
495 /* Remove current simulator if one exists. Only do this if the simulator
496 has been opened because sim_close requires it.
497 This is important because the call to push_target below will cause
498 sim_close to be called if the simulator is already open, but push_target
499 is called after sim_open! We can't move the call to push_target before
500 the call to sim_open because sim_open may invoke `error'. */
501 if (gdbsim_desc
!= NULL
)
502 unpush_target (&gdbsim_ops
);
504 len
= (7 + 1 /* gdbsim */
505 + strlen (" -E little")
506 + strlen (" --architecture=xxxxxxxxxx")
507 + (args
? strlen (args
) : 0)
509 arg_buf
= (char *) alloca (len
);
510 strcpy (arg_buf
, "gdbsim"); /* 7 */
511 /* Specify the byte order for the target when it is explicitly
512 specified by the user (not auto detected). */
513 switch (selected_byte_order ())
516 strcat (arg_buf
, " -E big");
518 case BFD_ENDIAN_LITTLE
:
519 strcat (arg_buf
, " -E little");
521 case BFD_ENDIAN_UNKNOWN
:
524 /* Specify the architecture of the target when it has been
525 explicitly specified */
526 if (selected_architecture_name () != NULL
)
528 strcat (arg_buf
, " --architecture=");
529 strcat (arg_buf
, selected_architecture_name ());
531 /* finally, any explicit args */
534 strcat (arg_buf
, " "); /* 1 */
535 strcat (arg_buf
, args
);
537 argv
= buildargv (arg_buf
);
539 error (_("Insufficient memory available to allocate simulator arg list."));
540 make_cleanup_freeargv (argv
);
543 gdbsim_desc
= sim_open (SIM_OPEN_DEBUG
, &gdb_callback
, exec_bfd
, argv
);
545 if (gdbsim_desc
== 0)
546 error (_("unable to create simulator instance"));
548 push_target (&gdbsim_ops
);
549 printf_filtered ("Connected to the simulator.\n");
551 /* There's nothing running after "target sim" or "load"; not until
553 inferior_ptid
= null_ptid
;
554 target_mark_exited (&gdbsim_ops
);
557 /* Does whatever cleanup is required for a target that we are no longer
558 going to be calling. Argument says whether we are quitting gdb and
559 should not get hung in case of errors, or whether we want a clean
560 termination even if it takes a while. This routine is automatically
561 always called just before a routine is popped off the target stack.
562 Closing file descriptors and freeing memory are typical things it should
564 /* Close out all files and local state before this target loses control. */
567 gdbsim_close (int quitting
)
570 printf_filtered ("gdbsim_close: quitting %d\n", quitting
);
574 if (gdbsim_desc
!= NULL
)
576 sim_close (gdbsim_desc
, quitting
);
581 generic_mourn_inferior ();
584 /* Takes a program previously attached to and detaches it.
585 The program may resume execution (some targets do, some don't) and will
586 no longer stop on signals, etc. We better not have left any breakpoints
587 in the program or it'll die when it hits one. ARGS is arguments
588 typed by the user (e.g. a signal to send the process). FROM_TTY
589 says whether to be verbose or not. */
590 /* Terminate the open connection to the remote debugger.
591 Use this when you want to detach and do something else with your gdb. */
594 gdbsim_detach (char *args
, int from_tty
)
597 printf_filtered ("gdbsim_detach: args \"%s\"\n", args
);
599 pop_target (); /* calls gdbsim_close to do the real work */
601 printf_filtered ("Ending simulator %s debugging\n", target_shortname
);
604 /* Resume execution of the target process. STEP says whether to single-step
605 or to run free; SIGGNAL is the signal value (e.g. SIGINT) to be given
606 to the target, or zero for no signal. */
608 static enum target_signal resume_siggnal
;
609 static int resume_step
;
612 gdbsim_resume (ptid_t ptid
, int step
, enum target_signal siggnal
)
614 if (PIDGET (inferior_ptid
) != 42)
615 error (_("The program is not being run."));
618 printf_filtered ("gdbsim_resume: step %d, signal %d\n", step
, siggnal
);
620 resume_siggnal
= siggnal
;
624 /* Notify the simulator of an asynchronous request to stop.
626 The simulator shall ensure that the stop request is eventually
627 delivered to the simulator. If the call is made while the
628 simulator is not running then the stop request is processed when
629 the simulator is next resumed.
631 For simulators that do not support this operation, just abort */
636 if (!sim_stop (gdbsim_desc
))
642 /* GDB version of os_poll_quit callback.
643 Taken from gdb/util.c - should be in a library. */
646 gdb_os_poll_quit (host_callback
*p
)
648 if (deprecated_ui_loop_hook
!= NULL
)
649 deprecated_ui_loop_hook (0);
651 if (quit_flag
) /* gdb's idea of quit */
653 quit_flag
= 0; /* we've stolen it */
656 else if (immediate_quit
)
663 /* Wait for inferior process to do something. Return pid of child,
664 or -1 in case of error; store status through argument pointer STATUS,
665 just as `wait' would. */
668 gdbsim_cntrl_c (int signo
)
674 gdbsim_wait (ptid_t ptid
, struct target_waitstatus
*status
)
676 static RETSIGTYPE (*prev_sigint
) ();
678 enum sim_stop reason
= sim_running
;
681 printf_filtered ("gdbsim_wait\n");
683 #if defined (HAVE_SIGACTION) && defined (SA_RESTART)
685 struct sigaction sa
, osa
;
686 sa
.sa_handler
= gdbsim_cntrl_c
;
687 sigemptyset (&sa
.sa_mask
);
689 sigaction (SIGINT
, &sa
, &osa
);
690 prev_sigint
= osa
.sa_handler
;
693 prev_sigint
= signal (SIGINT
, gdbsim_cntrl_c
);
695 sim_resume (gdbsim_desc
, resume_step
, resume_siggnal
);
696 signal (SIGINT
, prev_sigint
);
699 sim_stop_reason (gdbsim_desc
, &reason
, &sigrc
);
704 status
->kind
= TARGET_WAITKIND_EXITED
;
705 status
->value
.integer
= sigrc
;
710 case TARGET_SIGNAL_ABRT
:
713 case TARGET_SIGNAL_INT
:
714 case TARGET_SIGNAL_TRAP
:
716 status
->kind
= TARGET_WAITKIND_STOPPED
;
717 status
->value
.sig
= sigrc
;
722 status
->kind
= TARGET_WAITKIND_SIGNALLED
;
723 status
->value
.sig
= sigrc
;
727 /* FIXME: Is this correct? */
731 return inferior_ptid
;
734 /* Get ready to modify the registers array. On machines which store
735 individual registers, this doesn't need to do anything. On machines
736 which store all the registers in one fell swoop, this makes sure
737 that registers contains all the registers from the program being
741 gdbsim_prepare_to_store (struct regcache
*regcache
)
743 /* Do nothing, since we can store individual regs */
746 /* Transfer LEN bytes between GDB address MYADDR and target address
747 MEMADDR. If WRITE is non-zero, transfer them to the target,
748 otherwise transfer them from the target. TARGET is unused.
750 Returns the number of bytes transferred. */
753 gdbsim_xfer_inferior_memory (CORE_ADDR memaddr
, gdb_byte
*myaddr
, int len
,
754 int write
, struct mem_attrib
*attrib
,
755 struct target_ops
*target
)
757 /* If no program is running yet, then ignore the simulator for
758 memory. Pass the request down to the next target, hopefully
760 if (!target_has_execution
)
764 error (_("No program loaded."));
768 /* FIXME: Send to something other than STDOUT? */
769 printf_filtered ("gdbsim_xfer_inferior_memory: myaddr 0x");
770 gdb_print_host_address (myaddr
, gdb_stdout
);
771 printf_filtered (", memaddr 0x%s, len %d, write %d\n",
772 paddr_nz (memaddr
), len
, write
);
773 if (remote_debug
&& write
)
774 dump_mem (myaddr
, len
);
779 len
= sim_write (gdbsim_desc
, memaddr
, myaddr
, len
);
783 len
= sim_read (gdbsim_desc
, memaddr
, myaddr
, len
);
784 if (remote_debug
&& len
> 0)
785 dump_mem (myaddr
, len
);
791 gdbsim_files_info (struct target_ops
*target
)
793 char *file
= "nothing";
796 file
= bfd_get_filename (exec_bfd
);
799 printf_filtered ("gdbsim_files_info: file \"%s\"\n", file
);
803 printf_filtered ("\tAttached to %s running program %s\n",
804 target_shortname
, file
);
805 sim_info (gdbsim_desc
, 0);
809 /* Clear the simulator's notion of what the break points are. */
812 gdbsim_mourn_inferior (void)
815 printf_filtered ("gdbsim_mourn_inferior:\n");
817 remove_breakpoints ();
818 target_mark_exited (&gdbsim_ops
);
819 generic_mourn_inferior ();
822 /* Pass the command argument through to the simulator verbatim. The
823 simulator must do any command interpretation work. */
826 simulator_command (char *args
, int from_tty
)
828 if (gdbsim_desc
== NULL
)
831 /* PREVIOUSLY: The user may give a command before the simulator
832 is opened. [...] (??? assuming of course one wishes to
833 continue to allow commands to be sent to unopened simulators,
834 which isn't entirely unreasonable). */
836 /* The simulator is a builtin abstraction of a remote target.
837 Consistent with that model, access to the simulator, via sim
838 commands, is restricted to the period when the channel to the
839 simulator is open. */
841 error (_("Not connected to the simulator target"));
844 sim_do_command (gdbsim_desc
, args
);
846 /* Invalidate the register cache, in case the simulator command does
848 registers_changed ();
851 /* Define the target subroutine names */
853 struct target_ops gdbsim_ops
;
856 init_gdbsim_ops (void)
858 gdbsim_ops
.to_shortname
= "sim";
859 gdbsim_ops
.to_longname
= "simulator";
860 gdbsim_ops
.to_doc
= "Use the compiled-in simulator.";
861 gdbsim_ops
.to_open
= gdbsim_open
;
862 gdbsim_ops
.to_close
= gdbsim_close
;
863 gdbsim_ops
.to_detach
= gdbsim_detach
;
864 gdbsim_ops
.to_resume
= gdbsim_resume
;
865 gdbsim_ops
.to_wait
= gdbsim_wait
;
866 gdbsim_ops
.to_fetch_registers
= gdbsim_fetch_register
;
867 gdbsim_ops
.to_store_registers
= gdbsim_store_register
;
868 gdbsim_ops
.to_prepare_to_store
= gdbsim_prepare_to_store
;
869 gdbsim_ops
.deprecated_xfer_memory
= gdbsim_xfer_inferior_memory
;
870 gdbsim_ops
.to_files_info
= gdbsim_files_info
;
871 gdbsim_ops
.to_insert_breakpoint
= memory_insert_breakpoint
;
872 gdbsim_ops
.to_remove_breakpoint
= memory_remove_breakpoint
;
873 gdbsim_ops
.to_kill
= gdbsim_kill
;
874 gdbsim_ops
.to_load
= gdbsim_load
;
875 gdbsim_ops
.to_create_inferior
= gdbsim_create_inferior
;
876 gdbsim_ops
.to_mourn_inferior
= gdbsim_mourn_inferior
;
877 gdbsim_ops
.to_stop
= gdbsim_stop
;
878 gdbsim_ops
.to_stratum
= process_stratum
;
879 gdbsim_ops
.to_has_all_memory
= 1;
880 gdbsim_ops
.to_has_memory
= 1;
881 gdbsim_ops
.to_has_stack
= 1;
882 gdbsim_ops
.to_has_registers
= 1;
883 gdbsim_ops
.to_has_execution
= 1;
884 gdbsim_ops
.to_magic
= OPS_MAGIC
;
886 #ifdef TARGET_REDEFINE_DEFAULT_OPS
887 TARGET_REDEFINE_DEFAULT_OPS (&gdbsim_ops
);
892 _initialize_remote_sim (void)
895 add_target (&gdbsim_ops
);
897 add_com ("sim", class_obscure
, simulator_command
,
898 _("Send a command to the simulator."));