1 /* Generic remote debugging interface for simulators.
3 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
4 2002, 2004 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., 59 Temple Place - Suite 330,
24 Boston, MA 02111-1307, USA. */
29 #include "gdb_string.h"
38 #include "gdb/callback.h"
39 #include "gdb/remote-sim.h"
40 #include "remote-utils.h"
43 #include "gdb_assert.h"
44 #include "sim-regno.h"
45 #include "arch-utils.h"
49 extern void _initialize_remote_sim (void);
51 extern int (*ui_loop_hook
) (int signo
);
53 static void dump_mem (char *buf
, int len
);
55 static void init_callbacks (void);
57 static void end_callbacks (void);
59 static int gdb_os_write_stdout (host_callback
*, const char *, int);
61 static void gdb_os_flush_stdout (host_callback
*);
63 static int gdb_os_write_stderr (host_callback
*, const char *, int);
65 static void gdb_os_flush_stderr (host_callback
*);
67 static int gdb_os_poll_quit (host_callback
*);
69 /* printf_filtered is depreciated */
70 static void gdb_os_printf_filtered (host_callback
*, const char *, ...);
72 static void gdb_os_vprintf_filtered (host_callback
*, const char *, va_list);
74 static void gdb_os_evprintf_filtered (host_callback
*, const char *, va_list);
76 static void gdb_os_error (host_callback
*, const char *, ...);
78 static void gdbsim_fetch_register (int regno
);
80 static void gdbsim_store_register (int regno
);
82 static void gdbsim_kill (void);
84 static void gdbsim_load (char *prog
, int fromtty
);
86 static void gdbsim_open (char *args
, int from_tty
);
88 static void gdbsim_close (int quitting
);
90 static void gdbsim_detach (char *args
, int from_tty
);
92 static void gdbsim_resume (ptid_t ptid
, int step
, enum target_signal siggnal
);
94 static ptid_t
gdbsim_wait (ptid_t ptid
, struct target_waitstatus
*status
);
96 static void gdbsim_prepare_to_store (void);
98 static int gdbsim_xfer_inferior_memory (CORE_ADDR memaddr
, char *myaddr
,
100 struct mem_attrib
*attrib
,
101 struct target_ops
*target
);
103 static void gdbsim_files_info (struct target_ops
*target
);
105 static void gdbsim_mourn_inferior (void);
107 static void gdbsim_stop (void);
109 void simulator_command (char *args
, int from_tty
);
111 /* Naming convention:
113 sim_* are the interface to the simulator (see remote-sim.h).
114 gdbsim_* are stuff which is internal to gdb. */
116 /* Forward data declarations */
117 extern struct target_ops gdbsim_ops
;
119 static int program_loaded
= 0;
121 /* We must keep track of whether the simulator has been opened or not because
122 GDB can call a target's close routine twice, but sim_close doesn't allow
123 this. We also need to record the result of sim_open so we can pass it
124 back to the other sim_foo routines. */
125 static SIM_DESC gdbsim_desc
= 0;
128 dump_mem (char *buf
, int len
)
132 if (len
== 8 || len
== 4)
135 memcpy (l
, buf
, len
);
136 printf_filtered ("\t0x%lx", l
[0]);
138 printf_filtered (" 0x%lx", l
[1]);
139 printf_filtered ("\n");
144 printf_filtered ("\t");
145 for (i
= 0; i
< len
; i
++)
146 printf_filtered ("0x%x ", buf
[i
]);
147 printf_filtered ("\n");
152 static host_callback gdb_callback
;
153 static int callbacks_initialized
= 0;
155 /* Initialize gdb_callback. */
158 init_callbacks (void)
160 if (!callbacks_initialized
)
162 gdb_callback
= default_callback
;
163 gdb_callback
.init (&gdb_callback
);
164 gdb_callback
.write_stdout
= gdb_os_write_stdout
;
165 gdb_callback
.flush_stdout
= gdb_os_flush_stdout
;
166 gdb_callback
.write_stderr
= gdb_os_write_stderr
;
167 gdb_callback
.flush_stderr
= gdb_os_flush_stderr
;
168 gdb_callback
.printf_filtered
= gdb_os_printf_filtered
;
169 gdb_callback
.vprintf_filtered
= gdb_os_vprintf_filtered
;
170 gdb_callback
.evprintf_filtered
= gdb_os_evprintf_filtered
;
171 gdb_callback
.error
= gdb_os_error
;
172 gdb_callback
.poll_quit
= gdb_os_poll_quit
;
173 gdb_callback
.magic
= HOST_CALLBACK_MAGIC
;
174 callbacks_initialized
= 1;
178 /* Release callbacks (free resources used by them). */
183 if (callbacks_initialized
)
185 gdb_callback
.shutdown (&gdb_callback
);
186 callbacks_initialized
= 0;
190 /* GDB version of os_write_stdout callback. */
193 gdb_os_write_stdout (host_callback
*p
, const char *buf
, int len
)
198 ui_file_write (gdb_stdtarg
, buf
, len
);
202 /* GDB version of os_flush_stdout callback. */
205 gdb_os_flush_stdout (host_callback
*p
)
207 gdb_flush (gdb_stdtarg
);
210 /* GDB version of os_write_stderr callback. */
213 gdb_os_write_stderr (host_callback
*p
, const char *buf
, int len
)
218 for (i
= 0; i
< len
; i
++)
222 fputs_unfiltered (b
, gdb_stdtargerr
);
227 /* GDB version of os_flush_stderr callback. */
230 gdb_os_flush_stderr (host_callback
*p
)
232 gdb_flush (gdb_stdtargerr
);
235 /* GDB version of printf_filtered callback. */
238 gdb_os_printf_filtered (host_callback
* p
, const char *format
,...)
241 va_start (args
, format
);
243 vfprintf_filtered (gdb_stdout
, format
, args
);
248 /* GDB version of error vprintf_filtered. */
251 gdb_os_vprintf_filtered (host_callback
* p
, const char *format
, va_list ap
)
253 vfprintf_filtered (gdb_stdout
, format
, ap
);
256 /* GDB version of error evprintf_filtered. */
259 gdb_os_evprintf_filtered (host_callback
* p
, const char *format
, va_list ap
)
261 vfprintf_filtered (gdb_stderr
, format
, ap
);
264 /* GDB version of error callback. */
267 gdb_os_error (host_callback
* p
, const char *format
,...)
269 if (deprecated_error_hook
)
270 (*deprecated_error_hook
) ();
274 va_start (args
, format
);
275 verror (format
, args
);
281 one2one_register_sim_regno (int regnum
)
283 /* Only makes sense to supply raw registers. */
284 gdb_assert (regnum
>= 0 && regnum
< NUM_REGS
);
289 gdbsim_fetch_register (int regno
)
293 for (regno
= 0; regno
< NUM_REGS
; regno
++)
294 gdbsim_fetch_register (regno
);
298 switch (REGISTER_SIM_REGNO (regno
))
300 case LEGACY_SIM_REGNO_IGNORE
:
302 case SIM_REGNO_DOES_NOT_EXIST
:
304 /* For moment treat a `does not exist' register the same way
305 as an ``unavailable'' register. */
306 char buf
[MAX_REGISTER_SIZE
];
308 memset (buf
, 0, MAX_REGISTER_SIZE
);
309 supply_register (regno
, buf
);
310 set_register_cached (regno
, -1);
315 static int warn_user
= 1;
316 char buf
[MAX_REGISTER_SIZE
];
318 gdb_assert (regno
>= 0 && regno
< NUM_REGS
);
319 memset (buf
, 0, MAX_REGISTER_SIZE
);
320 nr_bytes
= sim_fetch_register (gdbsim_desc
,
321 REGISTER_SIM_REGNO (regno
),
322 buf
, DEPRECATED_REGISTER_RAW_SIZE (regno
));
323 if (nr_bytes
> 0 && nr_bytes
!= DEPRECATED_REGISTER_RAW_SIZE (regno
) && warn_user
)
325 fprintf_unfiltered (gdb_stderr
,
326 "Size of register %s (%d/%d) incorrect (%d instead of %d))",
327 REGISTER_NAME (regno
),
328 regno
, REGISTER_SIM_REGNO (regno
),
329 nr_bytes
, DEPRECATED_REGISTER_RAW_SIZE (regno
));
332 /* FIXME: cagney/2002-05-27: Should check `nr_bytes == 0'
333 indicating that GDB and the SIM have different ideas about
334 which registers are fetchable. */
335 /* Else if (nr_bytes < 0): an old simulator, that doesn't
336 think to return the register size. Just assume all is ok. */
337 supply_register (regno
, buf
);
340 printf_filtered ("gdbsim_fetch_register: %d", regno
);
341 /* FIXME: We could print something more intelligible. */
342 dump_mem (buf
, DEPRECATED_REGISTER_RAW_SIZE (regno
));
351 gdbsim_store_register (int regno
)
355 for (regno
= 0; regno
< NUM_REGS
; regno
++)
356 gdbsim_store_register (regno
);
359 else if (REGISTER_SIM_REGNO (regno
) >= 0)
361 char tmp
[MAX_REGISTER_SIZE
];
363 deprecated_read_register_gen (regno
, tmp
);
364 nr_bytes
= sim_store_register (gdbsim_desc
,
365 REGISTER_SIM_REGNO (regno
),
366 tmp
, DEPRECATED_REGISTER_RAW_SIZE (regno
));
367 if (nr_bytes
> 0 && nr_bytes
!= DEPRECATED_REGISTER_RAW_SIZE (regno
))
368 internal_error (__FILE__
, __LINE__
,
369 "Register size different to expected");
370 /* FIXME: cagney/2002-05-27: Should check `nr_bytes == 0'
371 indicating that GDB and the SIM have different ideas about
372 which registers are fetchable. */
375 printf_filtered ("gdbsim_store_register: %d", regno
);
376 /* FIXME: We could print something more intelligible. */
377 dump_mem (tmp
, DEPRECATED_REGISTER_RAW_SIZE (regno
));
382 /* Kill the running program. This may involve closing any open files
383 and releasing other resources acquired by the simulated program. */
389 printf_filtered ("gdbsim_kill\n");
391 /* There is no need to `kill' running simulator - the simulator is
393 inferior_ptid
= null_ptid
;
396 /* Load an executable file into the target process. This is expected to
397 not only bring new code into the target process, but also to update
398 GDB's symbol tables to match. */
401 gdbsim_load (char *prog
, int fromtty
)
404 printf_filtered ("gdbsim_load: prog \"%s\"\n", prog
);
406 inferior_ptid
= null_ptid
;
408 /* FIXME: We will print two messages on error.
409 Need error to either not print anything if passed NULL or need
410 another routine that doesn't take any arguments. */
411 if (sim_load (gdbsim_desc
, prog
, NULL
, fromtty
) == SIM_RC_FAIL
)
412 error ("unable to load program");
414 /* FIXME: If a load command should reset the targets registers then
415 a call to sim_create_inferior() should go here. */
421 /* Start an inferior process and set inferior_ptid to its pid.
422 EXEC_FILE is the file to run.
423 ARGS is a string containing the arguments to the program.
424 ENV is the environment vector to pass. Errors reported with error().
425 On VxWorks and various standalone systems, we ignore exec_file. */
426 /* This is called not only when we first attach, but also when the
427 user types "run" after having attached. */
430 gdbsim_create_inferior (char *exec_file
, char *args
, char **env
, int from_tty
)
433 char *arg_buf
, **argv
;
435 if (exec_file
== 0 || exec_bfd
== 0)
436 warning ("No executable file specified.");
438 warning ("No program loaded.");
441 printf_filtered ("gdbsim_create_inferior: exec_file \"%s\", args \"%s\"\n",
442 (exec_file
? exec_file
: "(NULL)"),
446 remove_breakpoints ();
447 init_wait_for_inferior ();
449 if (exec_file
!= NULL
)
451 len
= strlen (exec_file
) + 1 + strlen (args
) + 1 + /*slop */ 10;
452 arg_buf
= (char *) alloca (len
);
454 strcat (arg_buf
, exec_file
);
455 strcat (arg_buf
, " ");
456 strcat (arg_buf
, args
);
457 argv
= buildargv (arg_buf
);
458 make_cleanup_freeargv (argv
);
462 sim_create_inferior (gdbsim_desc
, exec_bfd
, argv
, env
);
464 inferior_ptid
= pid_to_ptid (42);
465 insert_breakpoints (); /* Needed to get correct instruction in cache */
467 clear_proceed_status ();
469 /* NB: Entry point already set by sim_create_inferior. */
470 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
473 /* The open routine takes the rest of the parameters from the command,
474 and (if successful) pushes a new target onto the stack.
475 Targets should supply this routine, if only to provide an error message. */
476 /* Called when selecting the simulator. EG: (gdb) target sim name. */
479 gdbsim_open (char *args
, int from_tty
)
486 printf_filtered ("gdbsim_open: args \"%s\"\n", args
? args
: "(null)");
488 /* Remove current simulator if one exists. Only do this if the simulator
489 has been opened because sim_close requires it.
490 This is important because the call to push_target below will cause
491 sim_close to be called if the simulator is already open, but push_target
492 is called after sim_open! We can't move the call to push_target before
493 the call to sim_open because sim_open may invoke `error'. */
494 if (gdbsim_desc
!= NULL
)
495 unpush_target (&gdbsim_ops
);
497 len
= (7 + 1 /* gdbsim */
498 + strlen (" -E little")
499 + strlen (" --architecture=xxxxxxxxxx")
500 + (args
? strlen (args
) : 0)
502 arg_buf
= (char *) alloca (len
);
503 strcpy (arg_buf
, "gdbsim"); /* 7 */
504 /* Specify the byte order for the target when it is both selectable
505 and explicitly specified by the user (not auto detected). */
506 switch (selected_byte_order ())
509 strcat (arg_buf
, " -E big");
511 case BFD_ENDIAN_LITTLE
:
512 strcat (arg_buf
, " -E little");
514 case BFD_ENDIAN_UNKNOWN
:
517 /* Specify the architecture of the target when it has been
518 explicitly specified */
519 if (selected_architecture_name () != NULL
)
521 strcat (arg_buf
, " --architecture=");
522 strcat (arg_buf
, selected_architecture_name ());
524 /* finally, any explicit args */
527 strcat (arg_buf
, " "); /* 1 */
528 strcat (arg_buf
, args
);
530 argv
= buildargv (arg_buf
);
532 error ("Insufficient memory available to allocate simulator arg list.");
533 make_cleanup_freeargv (argv
);
536 gdbsim_desc
= sim_open (SIM_OPEN_DEBUG
, &gdb_callback
, exec_bfd
, argv
);
538 if (gdbsim_desc
== 0)
539 error ("unable to create simulator instance");
541 push_target (&gdbsim_ops
);
542 target_fetch_registers (-1);
543 printf_filtered ("Connected to the simulator.\n");
546 /* Does whatever cleanup is required for a target that we are no longer
547 going to be calling. Argument says whether we are quitting gdb and
548 should not get hung in case of errors, or whether we want a clean
549 termination even if it takes a while. This routine is automatically
550 always called just before a routine is popped off the target stack.
551 Closing file descriptors and freeing memory are typical things it should
553 /* Close out all files and local state before this target loses control. */
556 gdbsim_close (int quitting
)
559 printf_filtered ("gdbsim_close: quitting %d\n", quitting
);
563 if (gdbsim_desc
!= NULL
)
565 sim_close (gdbsim_desc
, quitting
);
570 generic_mourn_inferior ();
573 /* Takes a program previously attached to and detaches it.
574 The program may resume execution (some targets do, some don't) and will
575 no longer stop on signals, etc. We better not have left any breakpoints
576 in the program or it'll die when it hits one. ARGS is arguments
577 typed by the user (e.g. a signal to send the process). FROM_TTY
578 says whether to be verbose or not. */
579 /* Terminate the open connection to the remote debugger.
580 Use this when you want to detach and do something else with your gdb. */
583 gdbsim_detach (char *args
, int from_tty
)
586 printf_filtered ("gdbsim_detach: args \"%s\"\n", args
);
588 pop_target (); /* calls gdbsim_close to do the real work */
590 printf_filtered ("Ending simulator %s debugging\n", target_shortname
);
593 /* Resume execution of the target process. STEP says whether to single-step
594 or to run free; SIGGNAL is the signal value (e.g. SIGINT) to be given
595 to the target, or zero for no signal. */
597 static enum target_signal resume_siggnal
;
598 static int resume_step
;
601 gdbsim_resume (ptid_t ptid
, int step
, enum target_signal siggnal
)
603 if (PIDGET (inferior_ptid
) != 42)
604 error ("The program is not being run.");
607 printf_filtered ("gdbsim_resume: step %d, signal %d\n", step
, siggnal
);
609 resume_siggnal
= siggnal
;
613 /* Notify the simulator of an asynchronous request to stop.
615 The simulator shall ensure that the stop request is eventually
616 delivered to the simulator. If the call is made while the
617 simulator is not running then the stop request is processed when
618 the simulator is next resumed.
620 For simulators that do not support this operation, just abort */
625 if (!sim_stop (gdbsim_desc
))
631 /* GDB version of os_poll_quit callback.
632 Taken from gdb/util.c - should be in a library */
635 gdb_os_poll_quit (host_callback
*p
)
637 if (ui_loop_hook
!= NULL
)
640 if (quit_flag
) /* gdb's idea of quit */
642 quit_flag
= 0; /* we've stolen it */
645 else if (immediate_quit
)
652 /* Wait for inferior process to do something. Return pid of child,
653 or -1 in case of error; store status through argument pointer STATUS,
654 just as `wait' would. */
657 gdbsim_cntrl_c (int signo
)
663 gdbsim_wait (ptid_t ptid
, struct target_waitstatus
*status
)
665 static RETSIGTYPE (*prev_sigint
) ();
667 enum sim_stop reason
= sim_running
;
670 printf_filtered ("gdbsim_wait\n");
672 #if defined (HAVE_SIGACTION) && defined (SA_RESTART)
674 struct sigaction sa
, osa
;
675 sa
.sa_handler
= gdbsim_cntrl_c
;
676 sigemptyset (&sa
.sa_mask
);
678 sigaction (SIGINT
, &sa
, &osa
);
679 prev_sigint
= osa
.sa_handler
;
682 prev_sigint
= signal (SIGINT
, gdbsim_cntrl_c
);
684 sim_resume (gdbsim_desc
, resume_step
,
685 target_signal_to_host (resume_siggnal
));
686 signal (SIGINT
, prev_sigint
);
689 sim_stop_reason (gdbsim_desc
, &reason
, &sigrc
);
694 status
->kind
= TARGET_WAITKIND_EXITED
;
695 status
->value
.integer
= sigrc
;
706 status
->kind
= TARGET_WAITKIND_STOPPED
;
707 /* The signal in sigrc is a host signal. That probably
709 status
->value
.sig
= target_signal_from_host (sigrc
);
714 status
->kind
= TARGET_WAITKIND_SIGNALLED
;
715 /* The signal in sigrc is a host signal. That probably
717 status
->value
.sig
= target_signal_from_host (sigrc
);
721 /* FIXME: Is this correct? */
725 return inferior_ptid
;
728 /* Get ready to modify the registers array. On machines which store
729 individual registers, this doesn't need to do anything. On machines
730 which store all the registers in one fell swoop, this makes sure
731 that registers contains all the registers from the program being
735 gdbsim_prepare_to_store (void)
737 /* Do nothing, since we can store individual regs */
740 /* Transfer LEN bytes between GDB address MYADDR and target address
741 MEMADDR. If WRITE is non-zero, transfer them to the target,
742 otherwise transfer them from the target. TARGET is unused.
744 Returns the number of bytes transferred. */
747 gdbsim_xfer_inferior_memory (CORE_ADDR memaddr
, char *myaddr
, int len
,
748 int write
, struct mem_attrib
*attrib
,
749 struct target_ops
*target
)
752 error ("No program loaded.");
756 /* FIXME: Send to something other than STDOUT? */
757 printf_filtered ("gdbsim_xfer_inferior_memory: myaddr 0x");
758 gdb_print_host_address (myaddr
, gdb_stdout
);
759 printf_filtered (", memaddr 0x%s, len %d, write %d\n",
760 paddr_nz (memaddr
), len
, write
);
761 if (sr_get_debug () && write
)
762 dump_mem (myaddr
, len
);
767 len
= sim_write (gdbsim_desc
, memaddr
, myaddr
, len
);
771 len
= sim_read (gdbsim_desc
, memaddr
, myaddr
, len
);
772 if (sr_get_debug () && len
> 0)
773 dump_mem (myaddr
, len
);
779 gdbsim_files_info (struct target_ops
*target
)
781 char *file
= "nothing";
784 file
= bfd_get_filename (exec_bfd
);
787 printf_filtered ("gdbsim_files_info: file \"%s\"\n", file
);
791 printf_filtered ("\tAttached to %s running program %s\n",
792 target_shortname
, file
);
793 sim_info (gdbsim_desc
, 0);
797 /* Clear the simulator's notion of what the break points are. */
800 gdbsim_mourn_inferior (void)
803 printf_filtered ("gdbsim_mourn_inferior:\n");
805 remove_breakpoints ();
806 generic_mourn_inferior ();
810 gdbsim_insert_breakpoint (CORE_ADDR addr
, char *contents_cache
)
812 return memory_insert_breakpoint (addr
, contents_cache
);
816 gdbsim_remove_breakpoint (CORE_ADDR addr
, char *contents_cache
)
818 return memory_remove_breakpoint (addr
, contents_cache
);
821 /* Pass the command argument through to the simulator verbatim. The
822 simulator must do any command interpretation work. */
825 simulator_command (char *args
, int from_tty
)
827 if (gdbsim_desc
== NULL
)
830 /* PREVIOUSLY: The user may give a command before the simulator
831 is opened. [...] (??? assuming of course one wishes to
832 continue to allow commands to be sent to unopened simulators,
833 which isn't entirely unreasonable). */
835 /* The simulator is a builtin abstraction of a remote target.
836 Consistent with that model, access to the simulator, via sim
837 commands, is restricted to the period when the channel to the
838 simulator is open. */
840 error ("Not connected to the simulator target");
843 sim_do_command (gdbsim_desc
, args
);
845 /* Invalidate the register cache, in case the simulator command does
847 registers_changed ();
850 /* Define the target subroutine names */
852 struct target_ops gdbsim_ops
;
855 init_gdbsim_ops (void)
857 gdbsim_ops
.to_shortname
= "sim";
858 gdbsim_ops
.to_longname
= "simulator";
859 gdbsim_ops
.to_doc
= "Use the compiled-in simulator.";
860 gdbsim_ops
.to_open
= gdbsim_open
;
861 gdbsim_ops
.to_close
= gdbsim_close
;
862 gdbsim_ops
.to_detach
= gdbsim_detach
;
863 gdbsim_ops
.to_resume
= gdbsim_resume
;
864 gdbsim_ops
.to_wait
= gdbsim_wait
;
865 gdbsim_ops
.to_fetch_registers
= gdbsim_fetch_register
;
866 gdbsim_ops
.to_store_registers
= gdbsim_store_register
;
867 gdbsim_ops
.to_prepare_to_store
= gdbsim_prepare_to_store
;
868 gdbsim_ops
.to_xfer_memory
= gdbsim_xfer_inferior_memory
;
869 gdbsim_ops
.to_files_info
= gdbsim_files_info
;
870 gdbsim_ops
.to_insert_breakpoint
= gdbsim_insert_breakpoint
;
871 gdbsim_ops
.to_remove_breakpoint
= gdbsim_remove_breakpoint
;
872 gdbsim_ops
.to_kill
= gdbsim_kill
;
873 gdbsim_ops
.to_load
= gdbsim_load
;
874 gdbsim_ops
.to_create_inferior
= gdbsim_create_inferior
;
875 gdbsim_ops
.to_mourn_inferior
= gdbsim_mourn_inferior
;
876 gdbsim_ops
.to_stop
= gdbsim_stop
;
877 gdbsim_ops
.to_stratum
= process_stratum
;
878 gdbsim_ops
.to_has_all_memory
= 1;
879 gdbsim_ops
.to_has_memory
= 1;
880 gdbsim_ops
.to_has_stack
= 1;
881 gdbsim_ops
.to_has_registers
= 1;
882 gdbsim_ops
.to_has_execution
= 1;
883 gdbsim_ops
.to_magic
= OPS_MAGIC
;
885 #ifdef TARGET_REDEFINE_DEFAULT_OPS
886 TARGET_REDEFINE_DEFAULT_OPS (&gdbsim_ops
);
891 _initialize_remote_sim (void)
894 add_target (&gdbsim_ops
);
896 add_com ("sim <command>", class_obscure
, simulator_command
,
897 "Send a command to the simulator.");