1 /* Generic remote debugging interface for simulators.
2 Copyright 1993, 1994, 1996, 1997, 2000 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
4 Steve Chamberlain (sac@cygnus.com).
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
27 #include "gdb_string.h"
37 #include "remote-sim.h"
38 #include "remote-utils.h"
43 extern void _initialize_remote_sim
PARAMS ((void));
45 extern int (*ui_loop_hook
) PARAMS ((int signo
));
47 static void dump_mem
PARAMS ((char *buf
, int len
));
49 static void init_callbacks
PARAMS ((void));
51 static void end_callbacks
PARAMS ((void));
53 static int gdb_os_write_stdout
PARAMS ((host_callback
*, const char *, int));
55 static void gdb_os_flush_stdout
PARAMS ((host_callback
*));
57 static int gdb_os_write_stderr
PARAMS ((host_callback
*, const char *, int));
59 static void gdb_os_flush_stderr
PARAMS ((host_callback
*));
61 static int gdb_os_poll_quit
PARAMS ((host_callback
*));
63 /* printf_filtered is depreciated */
64 static void gdb_os_printf_filtered
PARAMS ((host_callback
*, const char *,...));
66 static void gdb_os_vprintf_filtered
PARAMS ((host_callback
*, const char *, va_list));
68 static void gdb_os_evprintf_filtered
PARAMS ((host_callback
*, const char *, va_list));
70 static void gdb_os_error
PARAMS ((host_callback
*, const char *,...));
72 static void gdbsim_fetch_register
PARAMS ((int regno
));
74 static void gdbsim_store_register
PARAMS ((int regno
));
76 static void gdbsim_kill
PARAMS ((void));
78 static void gdbsim_load
PARAMS ((char *prog
, int fromtty
));
80 static void gdbsim_create_inferior
PARAMS ((char *exec_file
, char *args
, char **env
));
82 static void gdbsim_open
PARAMS ((char *args
, int from_tty
));
84 static void gdbsim_close
PARAMS ((int quitting
));
86 static void gdbsim_detach
PARAMS ((char *args
, int from_tty
));
88 static void gdbsim_resume
PARAMS ((int pid
, int step
, enum target_signal siggnal
));
90 static int gdbsim_wait
PARAMS ((int pid
, struct target_waitstatus
* status
));
92 static void gdbsim_prepare_to_store
PARAMS ((void));
94 static int gdbsim_xfer_inferior_memory
PARAMS ((CORE_ADDR memaddr
,
95 char *myaddr
, int len
,
97 struct target_ops
* target
));
99 static void gdbsim_files_info
PARAMS ((struct target_ops
* target
));
101 static void gdbsim_mourn_inferior
PARAMS ((void));
103 static void gdbsim_stop
PARAMS ((void));
105 void simulator_command
PARAMS ((char *args
, int from_tty
));
107 /* Naming convention:
109 sim_* are the interface to the simulator (see remote-sim.h).
110 gdbsim_* are stuff which is internal to gdb. */
112 /* Forward data declarations */
113 extern struct target_ops gdbsim_ops
;
115 static int program_loaded
= 0;
117 /* We must keep track of whether the simulator has been opened or not because
118 GDB can call a target's close routine twice, but sim_close doesn't allow
119 this. We also need to record the result of sim_open so we can pass it
120 back to the other sim_foo routines. */
121 static SIM_DESC gdbsim_desc
= 0;
130 if (len
== 8 || len
== 4)
133 memcpy (l
, buf
, len
);
134 printf_filtered ("\t0x%lx", l
[0]);
135 printf_filtered (len
== 8 ? " 0x%x\n" : "\n", l
[1]);
140 printf_filtered ("\t");
141 for (i
= 0; i
< len
; i
++)
142 printf_filtered ("0x%x ", buf
[i
]);
143 printf_filtered ("\n");
148 static host_callback gdb_callback
;
149 static int callbacks_initialized
= 0;
151 /* Initialize gdb_callback. */
156 if (!callbacks_initialized
)
158 gdb_callback
= default_callback
;
159 gdb_callback
.init (&gdb_callback
);
160 gdb_callback
.write_stdout
= gdb_os_write_stdout
;
161 gdb_callback
.flush_stdout
= gdb_os_flush_stdout
;
162 gdb_callback
.write_stderr
= gdb_os_write_stderr
;
163 gdb_callback
.flush_stderr
= gdb_os_flush_stderr
;
164 gdb_callback
.printf_filtered
= gdb_os_printf_filtered
;
165 gdb_callback
.vprintf_filtered
= gdb_os_vprintf_filtered
;
166 gdb_callback
.evprintf_filtered
= gdb_os_evprintf_filtered
;
167 gdb_callback
.error
= gdb_os_error
;
168 gdb_callback
.poll_quit
= gdb_os_poll_quit
;
169 gdb_callback
.magic
= HOST_CALLBACK_MAGIC
;
170 callbacks_initialized
= 1;
174 /* Release callbacks (free resources used by them). */
179 if (callbacks_initialized
)
181 gdb_callback
.shutdown (&gdb_callback
);
182 callbacks_initialized
= 0;
186 /* GDB version of os_write_stdout callback. */
189 gdb_os_write_stdout (p
, buf
, len
)
197 ui_file_write (gdb_stdtarg
, buf
, len
);
201 /* GDB version of os_flush_stdout callback. */
204 gdb_os_flush_stdout (p
)
207 gdb_flush (gdb_stdtarg
);
210 /* GDB version of os_write_stderr callback. */
213 gdb_os_write_stderr (p
, buf
, len
)
221 for (i
= 0; i
< len
; i
++)
225 fputs_unfiltered (b
, gdb_stdtarg
);
230 /* GDB version of os_flush_stderr callback. */
233 gdb_os_flush_stderr (p
)
236 gdb_flush (gdb_stderr
);
239 /* GDB version of printf_filtered callback. */
242 gdb_os_printf_filtered (host_callback
* p
, const char *format
,...)
245 va_start (args
, format
);
247 vfprintf_filtered (gdb_stdout
, format
, args
);
252 /* GDB version of error vprintf_filtered. */
255 gdb_os_vprintf_filtered (host_callback
* p
, const char *format
, va_list ap
)
257 vfprintf_filtered (gdb_stdout
, format
, ap
);
260 /* GDB version of error evprintf_filtered. */
263 gdb_os_evprintf_filtered (host_callback
* p
, const char *format
, va_list ap
)
265 vfprintf_filtered (gdb_stderr
, format
, ap
);
268 /* GDB version of error callback. */
271 gdb_os_error (host_callback
* p
, const char *format
,...)
278 va_start (args
, format
);
279 verror (format
, args
);
284 #ifndef REGISTER_SIM_REGNO
285 #define REGISTER_SIM_REGNO(N) (N)
289 gdbsim_fetch_register (regno
)
292 static int warn_user
= 1;
295 for (regno
= 0; regno
< NUM_REGS
; regno
++)
296 gdbsim_fetch_register (regno
);
298 else if (REGISTER_NAME (regno
) != NULL
299 && *REGISTER_NAME (regno
) != '\0')
301 char buf
[MAX_REGISTER_RAW_SIZE
];
303 if (REGISTER_SIM_REGNO (regno
) >= 0)
304 nr_bytes
= sim_fetch_register (gdbsim_desc
,
305 REGISTER_SIM_REGNO (regno
),
306 buf
, REGISTER_RAW_SIZE (regno
));
310 /* register not applicable, supply zero's */
311 memset (buf
, 0, MAX_REGISTER_RAW_SIZE
);
312 else if (nr_bytes
> 0 && nr_bytes
!= REGISTER_RAW_SIZE (regno
)
315 fprintf_unfiltered (gdb_stderr
,
316 "Size of register %s (%d/%d) incorrect (%d instead of %d))",
317 REGISTER_NAME (regno
),
318 regno
, REGISTER_SIM_REGNO (regno
),
319 nr_bytes
, REGISTER_RAW_SIZE (regno
));
322 supply_register (regno
, buf
);
325 printf_filtered ("gdbsim_fetch_register: %d", regno
);
326 /* FIXME: We could print something more intelligible. */
327 dump_mem (buf
, REGISTER_RAW_SIZE (regno
));
334 gdbsim_store_register (regno
)
339 for (regno
= 0; regno
< NUM_REGS
; regno
++)
340 gdbsim_store_register (regno
);
342 else if (REGISTER_NAME (regno
) != NULL
343 && *REGISTER_NAME (regno
) != '\0'
344 && REGISTER_SIM_REGNO (regno
) >= 0)
346 char tmp
[MAX_REGISTER_RAW_SIZE
];
348 read_register_gen (regno
, tmp
);
349 nr_bytes
= sim_store_register (gdbsim_desc
,
350 REGISTER_SIM_REGNO (regno
),
351 tmp
, REGISTER_RAW_SIZE (regno
));
352 if (nr_bytes
> 0 && nr_bytes
!= REGISTER_RAW_SIZE (regno
))
353 internal_error ("Register size different to expected");
356 printf_filtered ("gdbsim_store_register: %d", regno
);
357 /* FIXME: We could print something more intelligible. */
358 dump_mem (tmp
, REGISTER_RAW_SIZE (regno
));
363 /* Kill the running program. This may involve closing any open files
364 and releasing other resources acquired by the simulated program. */
370 printf_filtered ("gdbsim_kill\n");
372 /* There is no need to `kill' running simulator - the simulator is
377 /* Load an executable file into the target process. This is expected to
378 not only bring new code into the target process, but also to update
379 GDB's symbol tables to match. */
382 gdbsim_load (prog
, fromtty
)
387 printf_filtered ("gdbsim_load: prog \"%s\"\n", prog
);
391 /* FIXME: We will print two messages on error.
392 Need error to either not print anything if passed NULL or need
393 another routine that doesn't take any arguments. */
394 if (sim_load (gdbsim_desc
, prog
, NULL
, fromtty
) == SIM_RC_FAIL
)
395 error ("unable to load program");
397 /* FIXME: If a load command should reset the targets registers then
398 a call to sim_create_inferior() should go here. */
404 /* Start an inferior process and set inferior_pid to its pid.
405 EXEC_FILE is the file to run.
406 ARGS is a string containing the arguments to the program.
407 ENV is the environment vector to pass. Errors reported with error().
408 On VxWorks and various standalone systems, we ignore exec_file. */
409 /* This is called not only when we first attach, but also when the
410 user types "run" after having attached. */
413 gdbsim_create_inferior (exec_file
, args
, env
)
419 char *arg_buf
, **argv
;
421 if (exec_file
== 0 || exec_bfd
== 0)
422 warning ("No executable file specified.");
424 warning ("No program loaded.");
427 printf_filtered ("gdbsim_create_inferior: exec_file \"%s\", args \"%s\"\n",
428 (exec_file
? exec_file
: "(NULL)"),
432 remove_breakpoints ();
433 init_wait_for_inferior ();
435 if (exec_file
!= NULL
)
437 len
= strlen (exec_file
) + 1 + strlen (args
) + 1 + /*slop */ 10;
438 arg_buf
= (char *) alloca (len
);
440 strcat (arg_buf
, exec_file
);
441 strcat (arg_buf
, " ");
442 strcat (arg_buf
, args
);
443 argv
= buildargv (arg_buf
);
444 make_cleanup_freeargv (argv
);
448 sim_create_inferior (gdbsim_desc
, exec_bfd
, argv
, env
);
451 insert_breakpoints (); /* Needed to get correct instruction in cache */
453 clear_proceed_status ();
455 /* NB: Entry point already set by sim_create_inferior. */
456 proceed ((CORE_ADDR
) -1, TARGET_SIGNAL_DEFAULT
, 0);
459 /* The open routine takes the rest of the parameters from the command,
460 and (if successful) pushes a new target onto the stack.
461 Targets should supply this routine, if only to provide an error message. */
462 /* Called when selecting the simulator. EG: (gdb) target sim name. */
465 gdbsim_open (args
, from_tty
)
474 printf_filtered ("gdbsim_open: args \"%s\"\n", args
? args
: "(null)");
476 /* Remove current simulator if one exists. Only do this if the simulator
477 has been opened because sim_close requires it.
478 This is important because the call to push_target below will cause
479 sim_close to be called if the simulator is already open, but push_target
480 is called after sim_open! We can't move the call to push_target before
481 the call to sim_open because sim_open may invoke `error'. */
482 if (gdbsim_desc
!= NULL
)
483 unpush_target (&gdbsim_ops
);
485 len
= (7 + 1 /* gdbsim */
486 + strlen (" -E little")
487 + strlen (" --architecture=xxxxxxxxxx")
488 + (args
? strlen (args
) : 0)
490 arg_buf
= (char *) alloca (len
);
491 strcpy (arg_buf
, "gdbsim"); /* 7 */
492 /* Specify the byte order for the target when it is both selectable
493 and explicitly specified by the user (not auto detected). */
494 if (TARGET_BYTE_ORDER_SELECTABLE_P
495 && !TARGET_BYTE_ORDER_AUTO
)
497 switch (TARGET_BYTE_ORDER
)
500 strcat (arg_buf
, " -E big");
503 strcat (arg_buf
, " -E little");
506 internal_error ("Value of TARGET_BYTE_ORDER unknown");
509 /* Specify the architecture of the target when it has been
510 explicitly specified */
511 if (!TARGET_ARCHITECTURE_AUTO
)
513 strcat (arg_buf
, " --architecture=");
514 strcat (arg_buf
, TARGET_ARCHITECTURE
->printable_name
);
516 /* finally, any explicit args */
519 strcat (arg_buf
, " "); /* 1 */
520 strcat (arg_buf
, args
);
522 argv
= buildargv (arg_buf
);
524 error ("Insufficient memory available to allocate simulator arg list.");
525 make_cleanup_freeargv (argv
);
528 gdbsim_desc
= sim_open (SIM_OPEN_DEBUG
, &gdb_callback
, exec_bfd
, argv
);
530 if (gdbsim_desc
== 0)
531 error ("unable to create simulator instance");
533 push_target (&gdbsim_ops
);
534 target_fetch_registers (-1);
535 printf_filtered ("Connected to the simulator.\n");
538 /* Does whatever cleanup is required for a target that we are no longer
539 going to be calling. Argument says whether we are quitting gdb and
540 should not get hung in case of errors, or whether we want a clean
541 termination even if it takes a while. This routine is automatically
542 always called just before a routine is popped off the target stack.
543 Closing file descriptors and freeing memory are typical things it should
545 /* Close out all files and local state before this target loses control. */
548 gdbsim_close (quitting
)
552 printf_filtered ("gdbsim_close: quitting %d\n", quitting
);
556 if (gdbsim_desc
!= NULL
)
558 sim_close (gdbsim_desc
, quitting
);
563 generic_mourn_inferior ();
566 /* Takes a program previously attached to and detaches it.
567 The program may resume execution (some targets do, some don't) and will
568 no longer stop on signals, etc. We better not have left any breakpoints
569 in the program or it'll die when it hits one. ARGS is arguments
570 typed by the user (e.g. a signal to send the process). FROM_TTY
571 says whether to be verbose or not. */
572 /* Terminate the open connection to the remote debugger.
573 Use this when you want to detach and do something else with your gdb. */
576 gdbsim_detach (args
, from_tty
)
581 printf_filtered ("gdbsim_detach: args \"%s\"\n", args
);
583 pop_target (); /* calls gdbsim_close to do the real work */
585 printf_filtered ("Ending simulator %s debugging\n", target_shortname
);
588 /* Resume execution of the target process. STEP says whether to single-step
589 or to run free; SIGGNAL is the signal value (e.g. SIGINT) to be given
590 to the target, or zero for no signal. */
592 static enum target_signal resume_siggnal
;
593 static int resume_step
;
596 gdbsim_resume (pid
, step
, siggnal
)
598 enum target_signal siggnal
;
600 if (inferior_pid
!= 42)
601 error ("The program is not being run.");
604 printf_filtered ("gdbsim_resume: step %d, signal %d\n", step
, siggnal
);
606 resume_siggnal
= siggnal
;
610 /* Notify the simulator of an asynchronous request to stop.
612 The simulator shall ensure that the stop request is eventually
613 delivered to the simulator. If the call is made while the
614 simulator is not running then the stop request is processed when
615 the simulator is next resumed.
617 For simulators that do not support this operation, just abort */
622 if (!sim_stop (gdbsim_desc
))
628 /* GDB version of os_poll_quit callback.
629 Taken from gdb/util.c - should be in a library */
635 if (ui_loop_hook
!= NULL
)
639 if (quit_flag
) /* gdb's idea of quit */
641 quit_flag
= 0; /* we've stolen it */
644 else if (immediate_quit
)
651 /* Wait for inferior process to do something. Return pid of child,
652 or -1 in case of error; store status through argument pointer STATUS,
653 just as `wait' would. */
656 gdbsim_cntrl_c (signo
)
663 gdbsim_wait (pid
, status
)
665 struct target_waitstatus
*status
;
667 static RETSIGTYPE (*prev_sigint
) ();
669 enum sim_stop reason
= sim_running
;
672 printf_filtered ("gdbsim_wait\n");
674 #if defined (HAVE_SIGACTION) && defined (SA_RESTART)
676 struct sigaction sa
, osa
;
677 sa
.sa_handler
= gdbsim_cntrl_c
;
678 sigemptyset (&sa
.sa_mask
);
680 sigaction (SIGINT
, &sa
, &osa
);
681 prev_sigint
= osa
.sa_handler
;
684 prev_sigint
= signal (SIGINT
, gdbsim_cntrl_c
);
686 sim_resume (gdbsim_desc
, resume_step
,
687 target_signal_to_host (resume_siggnal
));
688 signal (SIGINT
, prev_sigint
);
691 sim_stop_reason (gdbsim_desc
, &reason
, &sigrc
);
696 status
->kind
= TARGET_WAITKIND_EXITED
;
697 status
->value
.integer
= sigrc
;
708 status
->kind
= TARGET_WAITKIND_STOPPED
;
709 /* The signal in sigrc is a host signal. That probably
711 status
->value
.sig
= target_signal_from_host (sigrc
);
716 status
->kind
= TARGET_WAITKIND_SIGNALLED
;
717 /* The signal in sigrc is a host signal. That probably
719 status
->value
.sig
= target_signal_from_host (sigrc
);
723 /* FIXME: Is this correct? */
730 /* Get ready to modify the registers array. On machines which store
731 individual registers, this doesn't need to do anything. On machines
732 which store all the registers in one fell swoop, this makes sure
733 that registers contains all the registers from the program being
737 gdbsim_prepare_to_store ()
739 /* Do nothing, since we can store individual regs */
743 gdbsim_xfer_inferior_memory (memaddr
, myaddr
, len
, write
, target
)
748 struct target_ops
*target
; /* ignored */
751 error ("No program loaded.");
755 /* FIXME: Send to something other than STDOUT? */
756 printf_filtered ("gdbsim_xfer_inferior_memory: myaddr 0x");
757 gdb_print_host_address (myaddr
, gdb_stdout
);
758 printf_filtered (", memaddr 0x%s, len %d, write %d\n",
759 paddr_nz (memaddr
), len
, write
);
760 if (sr_get_debug () && write
)
761 dump_mem (myaddr
, len
);
766 len
= sim_write (gdbsim_desc
, memaddr
, myaddr
, len
);
770 len
= sim_read (gdbsim_desc
, memaddr
, myaddr
, len
);
771 if (sr_get_debug () && len
> 0)
772 dump_mem (myaddr
, len
);
778 gdbsim_files_info (target
)
779 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 ()
803 printf_filtered ("gdbsim_mourn_inferior:\n");
805 remove_breakpoints ();
806 generic_mourn_inferior ();
810 gdbsim_insert_breakpoint (addr
, contents_cache
)
812 char *contents_cache
;
814 #ifdef SIM_HAS_BREAKPOINTS
817 retcode
= sim_set_breakpoint (gdbsim_desc
, addr
);
823 case SIM_RC_INSUFFICIENT_RESOURCES
:
829 return memory_insert_breakpoint (addr
, contents_cache
);
834 gdbsim_remove_breakpoint (addr
, contents_cache
)
836 char *contents_cache
;
838 #ifdef SIM_HAS_BREAKPOINTS
841 retcode
= sim_clear_breakpoint (gdbsim_desc
, addr
);
846 case SIM_RC_UNKNOWN_BREAKPOINT
:
848 case SIM_RC_INSUFFICIENT_RESOURCES
:
854 return memory_remove_breakpoint (addr
, contents_cache
);
858 /* Pass the command argument through to the simulator verbatim. The
859 simulator must do any command interpretation work. */
862 simulator_command (args
, from_tty
)
866 if (gdbsim_desc
== NULL
)
869 /* PREVIOUSLY: The user may give a command before the simulator
870 is opened. [...] (??? assuming of course one wishes to
871 continue to allow commands to be sent to unopened simulators,
872 which isn't entirely unreasonable). */
874 /* The simulator is a builtin abstraction of a remote target.
875 Consistent with that model, access to the simulator, via sim
876 commands, is restricted to the period when the channel to the
877 simulator is open. */
879 error ("Not connected to the simulator target");
882 sim_do_command (gdbsim_desc
, args
);
884 /* Invalidate the register cache, in case the simulator command does
886 registers_changed ();
889 /* Define the target subroutine names */
891 struct target_ops gdbsim_ops
;
894 init_gdbsim_ops (void)
896 gdbsim_ops
.to_shortname
= "sim";
897 gdbsim_ops
.to_longname
= "simulator";
898 gdbsim_ops
.to_doc
= "Use the compiled-in simulator.";
899 gdbsim_ops
.to_open
= gdbsim_open
;
900 gdbsim_ops
.to_close
= gdbsim_close
;
901 gdbsim_ops
.to_attach
= NULL
;
902 gdbsim_ops
.to_post_attach
= NULL
;
903 gdbsim_ops
.to_require_attach
= NULL
;
904 gdbsim_ops
.to_detach
= gdbsim_detach
;
905 gdbsim_ops
.to_require_detach
= NULL
;
906 gdbsim_ops
.to_resume
= gdbsim_resume
;
907 gdbsim_ops
.to_wait
= gdbsim_wait
;
908 gdbsim_ops
.to_post_wait
= NULL
;
909 gdbsim_ops
.to_fetch_registers
= gdbsim_fetch_register
;
910 gdbsim_ops
.to_store_registers
= gdbsim_store_register
;
911 gdbsim_ops
.to_prepare_to_store
= gdbsim_prepare_to_store
;
912 gdbsim_ops
.to_xfer_memory
= gdbsim_xfer_inferior_memory
;
913 gdbsim_ops
.to_files_info
= gdbsim_files_info
;
914 gdbsim_ops
.to_insert_breakpoint
= gdbsim_insert_breakpoint
;
915 gdbsim_ops
.to_remove_breakpoint
= gdbsim_remove_breakpoint
;
916 gdbsim_ops
.to_terminal_init
= NULL
;
917 gdbsim_ops
.to_terminal_inferior
= NULL
;
918 gdbsim_ops
.to_terminal_ours_for_output
= NULL
;
919 gdbsim_ops
.to_terminal_ours
= NULL
;
920 gdbsim_ops
.to_terminal_info
= NULL
;
921 gdbsim_ops
.to_kill
= gdbsim_kill
;
922 gdbsim_ops
.to_load
= gdbsim_load
;
923 gdbsim_ops
.to_lookup_symbol
= NULL
;
924 gdbsim_ops
.to_create_inferior
= gdbsim_create_inferior
;
925 gdbsim_ops
.to_post_startup_inferior
= NULL
;
926 gdbsim_ops
.to_acknowledge_created_inferior
= NULL
;
927 gdbsim_ops
.to_clone_and_follow_inferior
= NULL
;
928 gdbsim_ops
.to_post_follow_inferior_by_clone
= NULL
;
929 gdbsim_ops
.to_insert_fork_catchpoint
= NULL
;
930 gdbsim_ops
.to_remove_fork_catchpoint
= NULL
;
931 gdbsim_ops
.to_insert_vfork_catchpoint
= NULL
;
932 gdbsim_ops
.to_remove_vfork_catchpoint
= NULL
;
933 gdbsim_ops
.to_has_forked
= NULL
;
934 gdbsim_ops
.to_has_vforked
= NULL
;
935 gdbsim_ops
.to_can_follow_vfork_prior_to_exec
= NULL
;
936 gdbsim_ops
.to_post_follow_vfork
= NULL
;
937 gdbsim_ops
.to_insert_exec_catchpoint
= NULL
;
938 gdbsim_ops
.to_remove_exec_catchpoint
= NULL
;
939 gdbsim_ops
.to_has_execd
= NULL
;
940 gdbsim_ops
.to_reported_exec_events_per_exec_call
= NULL
;
941 gdbsim_ops
.to_has_exited
= NULL
;
942 gdbsim_ops
.to_mourn_inferior
= gdbsim_mourn_inferior
;
943 gdbsim_ops
.to_can_run
= 0;
944 gdbsim_ops
.to_notice_signals
= 0;
945 gdbsim_ops
.to_thread_alive
= 0;
946 gdbsim_ops
.to_stop
= gdbsim_stop
;
947 gdbsim_ops
.to_pid_to_exec_file
= NULL
;
948 gdbsim_ops
.to_core_file_to_sym_file
= NULL
;
949 gdbsim_ops
.to_stratum
= process_stratum
;
950 gdbsim_ops
.DONT_USE
= NULL
;
951 gdbsim_ops
.to_has_all_memory
= 1;
952 gdbsim_ops
.to_has_memory
= 1;
953 gdbsim_ops
.to_has_stack
= 1;
954 gdbsim_ops
.to_has_registers
= 1;
955 gdbsim_ops
.to_has_execution
= 1;
956 gdbsim_ops
.to_sections
= NULL
;
957 gdbsim_ops
.to_sections_end
= NULL
;
958 gdbsim_ops
.to_magic
= OPS_MAGIC
;
960 #ifdef TARGET_REDEFINE_DEFAULT_OPS
961 TARGET_REDEFINE_DEFAULT_OPS (&gdbsim_ops
);
966 _initialize_remote_sim ()
969 add_target (&gdbsim_ops
);
971 add_com ("sim <command>", class_obscure
, simulator_command
,
972 "Send a command to the simulator.");