1 /* Generic remote debugging interface for simulators.
2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
3 Free Software Foundation, Inc.
4 Contributed by Cygnus Support.
5 Steve Chamberlain (sac@cygnus.com).
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 2 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, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
27 #include "gdb_string.h"
37 #include "remote-sim.h"
38 #include "remote-utils.h"
44 extern void _initialize_remote_sim (void);
46 extern int (*ui_loop_hook) (int signo);
48 static void dump_mem (char *buf, int len);
50 static void init_callbacks (void);
52 static void end_callbacks (void);
54 static int gdb_os_write_stdout (host_callback *, const char *, int);
56 static void gdb_os_flush_stdout (host_callback *);
58 static int gdb_os_write_stderr (host_callback *, const char *, int);
60 static void gdb_os_flush_stderr (host_callback *);
62 static int gdb_os_poll_quit (host_callback *);
64 /* printf_filtered is depreciated */
65 static void gdb_os_printf_filtered (host_callback *, const char *, ...);
67 static void gdb_os_vprintf_filtered (host_callback *, const char *, va_list);
69 static void gdb_os_evprintf_filtered (host_callback *, const char *, va_list);
71 static void gdb_os_error (host_callback *, const char *, ...);
73 static void gdbsim_fetch_register (int regno);
75 static void gdbsim_store_register (int regno);
77 static void gdbsim_kill (void);
79 static void gdbsim_load (char *prog, int fromtty);
81 static void gdbsim_create_inferior (char *exec_file, char *args, char **env);
83 static void gdbsim_open (char *args, int from_tty);
85 static void gdbsim_close (int quitting);
87 static void gdbsim_detach (char *args, int from_tty);
89 static void gdbsim_resume (int pid, int step, enum target_signal siggnal);
91 static int gdbsim_wait (int pid, struct target_waitstatus *status);
93 static void gdbsim_prepare_to_store (void);
95 static int gdbsim_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr,
97 struct mem_attrib *attrib,
98 struct target_ops *target);
100 static void gdbsim_files_info (struct target_ops *target);
102 static void gdbsim_mourn_inferior (void);
104 static void gdbsim_stop (void);
106 void simulator_command (char *args, int from_tty);
108 /* Naming convention:
110 sim_* are the interface to the simulator (see remote-sim.h).
111 gdbsim_* are stuff which is internal to gdb. */
113 /* Forward data declarations */
114 extern struct target_ops gdbsim_ops;
116 static int program_loaded = 0;
118 /* We must keep track of whether the simulator has been opened or not because
119 GDB can call a target's close routine twice, but sim_close doesn't allow
120 this. We also need to record the result of sim_open so we can pass it
121 back to the other sim_foo routines. */
122 static SIM_DESC gdbsim_desc = 0;
125 dump_mem (char *buf, int len)
129 if (len == 8 || len == 4)
132 memcpy (l, buf, len);
133 printf_filtered ("\t0x%lx", l[0]);
135 printf_filtered (" 0x%lx", l[1]);
136 printf_filtered ("\n");
141 printf_filtered ("\t");
142 for (i = 0; i < len; i++)
143 printf_filtered ("0x%x ", buf[i]);
144 printf_filtered ("\n");
149 static host_callback gdb_callback;
150 static int callbacks_initialized = 0;
152 /* Initialize gdb_callback. */
155 init_callbacks (void)
157 if (!callbacks_initialized)
159 gdb_callback = default_callback;
160 gdb_callback.init (&gdb_callback);
161 gdb_callback.write_stdout = gdb_os_write_stdout;
162 gdb_callback.flush_stdout = gdb_os_flush_stdout;
163 gdb_callback.write_stderr = gdb_os_write_stderr;
164 gdb_callback.flush_stderr = gdb_os_flush_stderr;
165 gdb_callback.printf_filtered = gdb_os_printf_filtered;
166 gdb_callback.vprintf_filtered = gdb_os_vprintf_filtered;
167 gdb_callback.evprintf_filtered = gdb_os_evprintf_filtered;
168 gdb_callback.error = gdb_os_error;
169 gdb_callback.poll_quit = gdb_os_poll_quit;
170 gdb_callback.magic = HOST_CALLBACK_MAGIC;
171 callbacks_initialized = 1;
175 /* Release callbacks (free resources used by them). */
180 if (callbacks_initialized)
182 gdb_callback.shutdown (&gdb_callback);
183 callbacks_initialized = 0;
187 /* GDB version of os_write_stdout callback. */
190 gdb_os_write_stdout (host_callback *p, const char *buf, int len)
195 ui_file_write (gdb_stdtarg, buf, len);
199 /* GDB version of os_flush_stdout callback. */
202 gdb_os_flush_stdout (host_callback *p)
204 gdb_flush (gdb_stdtarg);
207 /* GDB version of os_write_stderr callback. */
210 gdb_os_write_stderr (host_callback *p, const char *buf, int len)
215 for (i = 0; i < len; i++)
219 fputs_unfiltered (b, gdb_stdtarg);
224 /* GDB version of os_flush_stderr callback. */
227 gdb_os_flush_stderr (host_callback *p)
229 gdb_flush (gdb_stderr);
232 /* GDB version of printf_filtered callback. */
235 gdb_os_printf_filtered (host_callback * p, const char *format,...)
238 va_start (args, format);
240 vfprintf_filtered (gdb_stdout, format, args);
245 /* GDB version of error vprintf_filtered. */
248 gdb_os_vprintf_filtered (host_callback * p, const char *format, va_list ap)
250 vfprintf_filtered (gdb_stdout, format, ap);
253 /* GDB version of error evprintf_filtered. */
256 gdb_os_evprintf_filtered (host_callback * p, const char *format, va_list ap)
258 vfprintf_filtered (gdb_stderr, format, ap);
261 /* GDB version of error callback. */
264 gdb_os_error (host_callback * p, const char *format,...)
271 va_start (args, format);
272 verror (format, args);
278 gdbsim_fetch_register (int regno)
280 static int warn_user = 1;
283 for (regno = 0; regno < NUM_REGS; regno++)
284 gdbsim_fetch_register (regno);
286 else if (REGISTER_NAME (regno) != NULL
287 && *REGISTER_NAME (regno) != '\0')
289 char buf[MAX_REGISTER_RAW_SIZE];
291 if (REGISTER_SIM_REGNO (regno) >= 0)
292 nr_bytes = sim_fetch_register (gdbsim_desc,
293 REGISTER_SIM_REGNO (regno),
294 buf, REGISTER_RAW_SIZE (regno));
298 /* register not applicable, supply zero's */
299 memset (buf, 0, MAX_REGISTER_RAW_SIZE);
300 else if (nr_bytes > 0 && nr_bytes != REGISTER_RAW_SIZE (regno)
303 fprintf_unfiltered (gdb_stderr,
304 "Size of register %s (%d/%d) incorrect (%d instead of %d))",
305 REGISTER_NAME (regno),
306 regno, REGISTER_SIM_REGNO (regno),
307 nr_bytes, REGISTER_RAW_SIZE (regno));
310 supply_register (regno, buf);
313 printf_filtered ("gdbsim_fetch_register: %d", regno);
314 /* FIXME: We could print something more intelligible. */
315 dump_mem (buf, REGISTER_RAW_SIZE (regno));
322 gdbsim_store_register (int regno)
326 for (regno = 0; regno < NUM_REGS; regno++)
327 gdbsim_store_register (regno);
329 else if (REGISTER_NAME (regno) != NULL
330 && *REGISTER_NAME (regno) != '\0'
331 && REGISTER_SIM_REGNO (regno) >= 0)
333 char tmp[MAX_REGISTER_RAW_SIZE];
335 read_register_gen (regno, tmp);
336 nr_bytes = sim_store_register (gdbsim_desc,
337 REGISTER_SIM_REGNO (regno),
338 tmp, REGISTER_RAW_SIZE (regno));
339 if (nr_bytes > 0 && nr_bytes != REGISTER_RAW_SIZE (regno))
340 internal_error (__FILE__, __LINE__,
341 "Register size different to expected");
344 printf_filtered ("gdbsim_store_register: %d", regno);
345 /* FIXME: We could print something more intelligible. */
346 dump_mem (tmp, REGISTER_RAW_SIZE (regno));
351 /* Kill the running program. This may involve closing any open files
352 and releasing other resources acquired by the simulated program. */
358 printf_filtered ("gdbsim_kill\n");
360 /* There is no need to `kill' running simulator - the simulator is
365 /* Load an executable file into the target process. This is expected to
366 not only bring new code into the target process, but also to update
367 GDB's symbol tables to match. */
370 gdbsim_load (char *prog, int fromtty)
373 printf_filtered ("gdbsim_load: prog \"%s\"\n", prog);
377 /* FIXME: We will print two messages on error.
378 Need error to either not print anything if passed NULL or need
379 another routine that doesn't take any arguments. */
380 if (sim_load (gdbsim_desc, prog, NULL, fromtty) == SIM_RC_FAIL)
381 error ("unable to load program");
383 /* FIXME: If a load command should reset the targets registers then
384 a call to sim_create_inferior() should go here. */
390 /* Start an inferior process and set inferior_pid to its pid.
391 EXEC_FILE is the file to run.
392 ARGS is a string containing the arguments to the program.
393 ENV is the environment vector to pass. Errors reported with error().
394 On VxWorks and various standalone systems, we ignore exec_file. */
395 /* This is called not only when we first attach, but also when the
396 user types "run" after having attached. */
399 gdbsim_create_inferior (char *exec_file, char *args, char **env)
402 char *arg_buf, **argv;
404 if (exec_file == 0 || exec_bfd == 0)
405 warning ("No executable file specified.");
407 warning ("No program loaded.");
410 printf_filtered ("gdbsim_create_inferior: exec_file \"%s\", args \"%s\"\n",
411 (exec_file ? exec_file : "(NULL)"),
415 remove_breakpoints ();
416 init_wait_for_inferior ();
418 if (exec_file != NULL)
420 len = strlen (exec_file) + 1 + strlen (args) + 1 + /*slop */ 10;
421 arg_buf = (char *) alloca (len);
423 strcat (arg_buf, exec_file);
424 strcat (arg_buf, " ");
425 strcat (arg_buf, args);
426 argv = buildargv (arg_buf);
427 make_cleanup_freeargv (argv);
431 sim_create_inferior (gdbsim_desc, exec_bfd, argv, env);
434 insert_breakpoints (); /* Needed to get correct instruction in cache */
436 clear_proceed_status ();
438 /* NB: Entry point already set by sim_create_inferior. */
439 proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0);
442 /* The open routine takes the rest of the parameters from the command,
443 and (if successful) pushes a new target onto the stack.
444 Targets should supply this routine, if only to provide an error message. */
445 /* Called when selecting the simulator. EG: (gdb) target sim name. */
448 gdbsim_open (char *args, int from_tty)
455 printf_filtered ("gdbsim_open: args \"%s\"\n", args ? args : "(null)");
457 /* Remove current simulator if one exists. Only do this if the simulator
458 has been opened because sim_close requires it.
459 This is important because the call to push_target below will cause
460 sim_close to be called if the simulator is already open, but push_target
461 is called after sim_open! We can't move the call to push_target before
462 the call to sim_open because sim_open may invoke `error'. */
463 if (gdbsim_desc != NULL)
464 unpush_target (&gdbsim_ops);
466 len = (7 + 1 /* gdbsim */
467 + strlen (" -E little")
468 + strlen (" --architecture=xxxxxxxxxx")
469 + (args ? strlen (args) : 0)
471 arg_buf = (char *) alloca (len);
472 strcpy (arg_buf, "gdbsim"); /* 7 */
473 /* Specify the byte order for the target when it is both selectable
474 and explicitly specified by the user (not auto detected). */
475 if (TARGET_BYTE_ORDER_SELECTABLE_P
476 && !TARGET_BYTE_ORDER_AUTO)
478 switch (TARGET_BYTE_ORDER)
481 strcat (arg_buf, " -E big");
484 strcat (arg_buf, " -E little");
487 internal_error (__FILE__, __LINE__,
488 "Value of TARGET_BYTE_ORDER unknown");
491 /* Specify the architecture of the target when it has been
492 explicitly specified */
493 if (!TARGET_ARCHITECTURE_AUTO)
495 strcat (arg_buf, " --architecture=");
496 strcat (arg_buf, TARGET_ARCHITECTURE->printable_name);
498 /* finally, any explicit args */
501 strcat (arg_buf, " "); /* 1 */
502 strcat (arg_buf, args);
504 argv = buildargv (arg_buf);
506 error ("Insufficient memory available to allocate simulator arg list.");
507 make_cleanup_freeargv (argv);
510 gdbsim_desc = sim_open (SIM_OPEN_DEBUG, &gdb_callback, exec_bfd, argv);
512 if (gdbsim_desc == 0)
513 error ("unable to create simulator instance");
515 push_target (&gdbsim_ops);
516 target_fetch_registers (-1);
517 printf_filtered ("Connected to the simulator.\n");
520 /* Does whatever cleanup is required for a target that we are no longer
521 going to be calling. Argument says whether we are quitting gdb and
522 should not get hung in case of errors, or whether we want a clean
523 termination even if it takes a while. This routine is automatically
524 always called just before a routine is popped off the target stack.
525 Closing file descriptors and freeing memory are typical things it should
527 /* Close out all files and local state before this target loses control. */
530 gdbsim_close (int quitting)
533 printf_filtered ("gdbsim_close: quitting %d\n", quitting);
537 if (gdbsim_desc != NULL)
539 sim_close (gdbsim_desc, quitting);
544 generic_mourn_inferior ();
547 /* Takes a program previously attached to and detaches it.
548 The program may resume execution (some targets do, some don't) and will
549 no longer stop on signals, etc. We better not have left any breakpoints
550 in the program or it'll die when it hits one. ARGS is arguments
551 typed by the user (e.g. a signal to send the process). FROM_TTY
552 says whether to be verbose or not. */
553 /* Terminate the open connection to the remote debugger.
554 Use this when you want to detach and do something else with your gdb. */
557 gdbsim_detach (char *args, int from_tty)
560 printf_filtered ("gdbsim_detach: args \"%s\"\n", args);
562 pop_target (); /* calls gdbsim_close to do the real work */
564 printf_filtered ("Ending simulator %s debugging\n", target_shortname);
567 /* Resume execution of the target process. STEP says whether to single-step
568 or to run free; SIGGNAL is the signal value (e.g. SIGINT) to be given
569 to the target, or zero for no signal. */
571 static enum target_signal resume_siggnal;
572 static int resume_step;
575 gdbsim_resume (int pid, int step, enum target_signal siggnal)
577 if (inferior_pid != 42)
578 error ("The program is not being run.");
581 printf_filtered ("gdbsim_resume: step %d, signal %d\n", step, siggnal);
583 resume_siggnal = siggnal;
587 /* Notify the simulator of an asynchronous request to stop.
589 The simulator shall ensure that the stop request is eventually
590 delivered to the simulator. If the call is made while the
591 simulator is not running then the stop request is processed when
592 the simulator is next resumed.
594 For simulators that do not support this operation, just abort */
599 if (!sim_stop (gdbsim_desc))
605 /* GDB version of os_poll_quit callback.
606 Taken from gdb/util.c - should be in a library */
609 gdb_os_poll_quit (host_callback *p)
611 if (ui_loop_hook != NULL)
615 if (quit_flag) /* gdb's idea of quit */
617 quit_flag = 0; /* we've stolen it */
620 else if (immediate_quit)
627 /* Wait for inferior process to do something. Return pid of child,
628 or -1 in case of error; store status through argument pointer STATUS,
629 just as `wait' would. */
632 gdbsim_cntrl_c (int signo)
638 gdbsim_wait (int pid, struct target_waitstatus *status)
640 static RETSIGTYPE (*prev_sigint) ();
642 enum sim_stop reason = sim_running;
645 printf_filtered ("gdbsim_wait\n");
647 #if defined (HAVE_SIGACTION) && defined (SA_RESTART)
649 struct sigaction sa, osa;
650 sa.sa_handler = gdbsim_cntrl_c;
651 sigemptyset (&sa.sa_mask);
653 sigaction (SIGINT, &sa, &osa);
654 prev_sigint = osa.sa_handler;
657 prev_sigint = signal (SIGINT, gdbsim_cntrl_c);
659 sim_resume (gdbsim_desc, resume_step,
660 target_signal_to_host (resume_siggnal));
661 signal (SIGINT, prev_sigint);
664 sim_stop_reason (gdbsim_desc, &reason, &sigrc);
669 status->kind = TARGET_WAITKIND_EXITED;
670 status->value.integer = sigrc;
681 status->kind = TARGET_WAITKIND_STOPPED;
682 /* The signal in sigrc is a host signal. That probably
684 status->value.sig = target_signal_from_host (sigrc);
689 status->kind = TARGET_WAITKIND_SIGNALLED;
690 /* The signal in sigrc is a host signal. That probably
692 status->value.sig = target_signal_from_host (sigrc);
696 /* FIXME: Is this correct? */
703 /* Get ready to modify the registers array. On machines which store
704 individual registers, this doesn't need to do anything. On machines
705 which store all the registers in one fell swoop, this makes sure
706 that registers contains all the registers from the program being
710 gdbsim_prepare_to_store (void)
712 /* Do nothing, since we can store individual regs */
715 /* Transfer LEN bytes between GDB address MYADDR and target address
716 MEMADDR. If WRITE is non-zero, transfer them to the target,
717 otherwise transfer them from the target. TARGET is unused.
719 Returns the number of bytes transferred. */
722 gdbsim_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len,
724 struct mem_attrib *attrib ATTRIBUTE_UNUSED,
725 struct target_ops *target ATTRIBUTE_UNUSED)
728 error ("No program loaded.");
732 /* FIXME: Send to something other than STDOUT? */
733 printf_filtered ("gdbsim_xfer_inferior_memory: myaddr 0x");
734 gdb_print_host_address (myaddr, gdb_stdout);
735 printf_filtered (", memaddr 0x%s, len %d, write %d\n",
736 paddr_nz (memaddr), len, write);
737 if (sr_get_debug () && write)
738 dump_mem (myaddr, len);
743 len = sim_write (gdbsim_desc, memaddr, myaddr, len);
747 len = sim_read (gdbsim_desc, memaddr, myaddr, len);
748 if (sr_get_debug () && len > 0)
749 dump_mem (myaddr, len);
755 gdbsim_files_info (struct target_ops *target)
757 char *file = "nothing";
760 file = bfd_get_filename (exec_bfd);
763 printf_filtered ("gdbsim_files_info: file \"%s\"\n", file);
767 printf_filtered ("\tAttached to %s running program %s\n",
768 target_shortname, file);
769 sim_info (gdbsim_desc, 0);
773 /* Clear the simulator's notion of what the break points are. */
776 gdbsim_mourn_inferior (void)
779 printf_filtered ("gdbsim_mourn_inferior:\n");
781 remove_breakpoints ();
782 generic_mourn_inferior ();
786 gdbsim_insert_breakpoint (CORE_ADDR addr, char *contents_cache)
788 #ifdef SIM_HAS_BREAKPOINTS
791 retcode = sim_set_breakpoint (gdbsim_desc, addr);
797 case SIM_RC_INSUFFICIENT_RESOURCES:
803 return memory_insert_breakpoint (addr, contents_cache);
808 gdbsim_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
810 #ifdef SIM_HAS_BREAKPOINTS
813 retcode = sim_clear_breakpoint (gdbsim_desc, addr);
818 case SIM_RC_UNKNOWN_BREAKPOINT:
820 case SIM_RC_INSUFFICIENT_RESOURCES:
826 return memory_remove_breakpoint (addr, contents_cache);
830 /* Pass the command argument through to the simulator verbatim. The
831 simulator must do any command interpretation work. */
834 simulator_command (char *args, int from_tty)
836 if (gdbsim_desc == NULL)
839 /* PREVIOUSLY: The user may give a command before the simulator
840 is opened. [...] (??? assuming of course one wishes to
841 continue to allow commands to be sent to unopened simulators,
842 which isn't entirely unreasonable). */
844 /* The simulator is a builtin abstraction of a remote target.
845 Consistent with that model, access to the simulator, via sim
846 commands, is restricted to the period when the channel to the
847 simulator is open. */
849 error ("Not connected to the simulator target");
852 sim_do_command (gdbsim_desc, args);
854 /* Invalidate the register cache, in case the simulator command does
856 registers_changed ();
859 /* Define the target subroutine names */
861 struct target_ops gdbsim_ops;
864 init_gdbsim_ops (void)
866 gdbsim_ops.to_shortname = "sim";
867 gdbsim_ops.to_longname = "simulator";
868 gdbsim_ops.to_doc = "Use the compiled-in simulator.";
869 gdbsim_ops.to_open = gdbsim_open;
870 gdbsim_ops.to_close = gdbsim_close;
871 gdbsim_ops.to_attach = NULL;
872 gdbsim_ops.to_post_attach = NULL;
873 gdbsim_ops.to_require_attach = NULL;
874 gdbsim_ops.to_detach = gdbsim_detach;
875 gdbsim_ops.to_require_detach = NULL;
876 gdbsim_ops.to_resume = gdbsim_resume;
877 gdbsim_ops.to_wait = gdbsim_wait;
878 gdbsim_ops.to_post_wait = NULL;
879 gdbsim_ops.to_fetch_registers = gdbsim_fetch_register;
880 gdbsim_ops.to_store_registers = gdbsim_store_register;
881 gdbsim_ops.to_prepare_to_store = gdbsim_prepare_to_store;
882 gdbsim_ops.to_xfer_memory = gdbsim_xfer_inferior_memory;
883 gdbsim_ops.to_files_info = gdbsim_files_info;
884 gdbsim_ops.to_insert_breakpoint = gdbsim_insert_breakpoint;
885 gdbsim_ops.to_remove_breakpoint = gdbsim_remove_breakpoint;
886 gdbsim_ops.to_terminal_init = NULL;
887 gdbsim_ops.to_terminal_inferior = NULL;
888 gdbsim_ops.to_terminal_ours_for_output = NULL;
889 gdbsim_ops.to_terminal_ours = NULL;
890 gdbsim_ops.to_terminal_info = NULL;
891 gdbsim_ops.to_kill = gdbsim_kill;
892 gdbsim_ops.to_load = gdbsim_load;
893 gdbsim_ops.to_lookup_symbol = NULL;
894 gdbsim_ops.to_create_inferior = gdbsim_create_inferior;
895 gdbsim_ops.to_post_startup_inferior = NULL;
896 gdbsim_ops.to_acknowledge_created_inferior = NULL;
897 gdbsim_ops.to_clone_and_follow_inferior = NULL;
898 gdbsim_ops.to_post_follow_inferior_by_clone = NULL;
899 gdbsim_ops.to_insert_fork_catchpoint = NULL;
900 gdbsim_ops.to_remove_fork_catchpoint = NULL;
901 gdbsim_ops.to_insert_vfork_catchpoint = NULL;
902 gdbsim_ops.to_remove_vfork_catchpoint = NULL;
903 gdbsim_ops.to_has_forked = NULL;
904 gdbsim_ops.to_has_vforked = NULL;
905 gdbsim_ops.to_can_follow_vfork_prior_to_exec = NULL;
906 gdbsim_ops.to_post_follow_vfork = NULL;
907 gdbsim_ops.to_insert_exec_catchpoint = NULL;
908 gdbsim_ops.to_remove_exec_catchpoint = NULL;
909 gdbsim_ops.to_has_execd = NULL;
910 gdbsim_ops.to_reported_exec_events_per_exec_call = NULL;
911 gdbsim_ops.to_has_exited = NULL;
912 gdbsim_ops.to_mourn_inferior = gdbsim_mourn_inferior;
913 gdbsim_ops.to_can_run = 0;
914 gdbsim_ops.to_notice_signals = 0;
915 gdbsim_ops.to_thread_alive = 0;
916 gdbsim_ops.to_stop = gdbsim_stop;
917 gdbsim_ops.to_pid_to_exec_file = NULL;
918 gdbsim_ops.to_stratum = process_stratum;
919 gdbsim_ops.DONT_USE = NULL;
920 gdbsim_ops.to_has_all_memory = 1;
921 gdbsim_ops.to_has_memory = 1;
922 gdbsim_ops.to_has_stack = 1;
923 gdbsim_ops.to_has_registers = 1;
924 gdbsim_ops.to_has_execution = 1;
925 gdbsim_ops.to_sections = NULL;
926 gdbsim_ops.to_sections_end = NULL;
927 gdbsim_ops.to_magic = OPS_MAGIC;
929 #ifdef TARGET_REDEFINE_DEFAULT_OPS
930 TARGET_REDEFINE_DEFAULT_OPS (&gdbsim_ops);
935 _initialize_remote_sim (void)
938 add_target (&gdbsim_ops);
940 add_com ("sim <command>", class_obscure, simulator_command,
941 "Send a command to the simulator.");