/* Generic remote debugging interface for simulators.
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/* Generic remote debugging interface for simulators.
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Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
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Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
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2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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Contributed by Cygnus Support.
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Contributed by Cygnus Support.
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Steve Chamberlain (sac@cygnus.com).
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Steve Chamberlain (sac@cygnus.com).
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This file is part of GDB.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "defs.h"
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#include "inferior.h"
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#include "inferior.h"
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#include "value.h"
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#include "value.h"
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#include "gdb_string.h"
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#include "gdb_string.h"
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#include <ctype.h>
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#include <ctype.h>
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#include <fcntl.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <signal.h>
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#include <setjmp.h>
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#include <setjmp.h>
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#include <errno.h>
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#include <errno.h>
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#include "terminal.h"
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#include "terminal.h"
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#include "target.h"
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#include "target.h"
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#include "gdbcore.h"
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#include "gdbcore.h"
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#include "gdb/callback.h"
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#include "gdb/callback.h"
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#include "gdb/remote-sim.h"
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#include "gdb/remote-sim.h"
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#include "command.h"
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#include "command.h"
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#include "regcache.h"
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#include "regcache.h"
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#include "gdb_assert.h"
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#include "gdb_assert.h"
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#include "sim-regno.h"
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#include "sim-regno.h"
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#include "arch-utils.h"
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#include "arch-utils.h"
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#include "readline/readline.h"
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#include "readline/readline.h"
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/* Prototypes */
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/* Prototypes */
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extern void _initialize_remote_sim (void);
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extern void _initialize_remote_sim (void);
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static void dump_mem (char *buf, int len);
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static void dump_mem (char *buf, int len);
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static void init_callbacks (void);
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static void init_callbacks (void);
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static void end_callbacks (void);
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static void end_callbacks (void);
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static int gdb_os_write_stdout (host_callback *, const char *, int);
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static int gdb_os_write_stdout (host_callback *, const char *, int);
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static void gdb_os_flush_stdout (host_callback *);
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static void gdb_os_flush_stdout (host_callback *);
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static int gdb_os_write_stderr (host_callback *, const char *, int);
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static int gdb_os_write_stderr (host_callback *, const char *, int);
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static void gdb_os_flush_stderr (host_callback *);
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static void gdb_os_flush_stderr (host_callback *);
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static int gdb_os_poll_quit (host_callback *);
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static int gdb_os_poll_quit (host_callback *);
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/* printf_filtered is depreciated */
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/* printf_filtered is depreciated */
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static void gdb_os_printf_filtered (host_callback *, const char *, ...);
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static void gdb_os_printf_filtered (host_callback *, const char *, ...);
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static void gdb_os_vprintf_filtered (host_callback *, const char *, va_list);
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static void gdb_os_vprintf_filtered (host_callback *, const char *, va_list);
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static void gdb_os_evprintf_filtered (host_callback *, const char *, va_list);
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static void gdb_os_evprintf_filtered (host_callback *, const char *, va_list);
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/* JPB fix for compatibility with latest binutils */
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/* JPB fix for compatibility with latest binutils */
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static void gdb_os_error (host_callback *, const char *, ...)
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static void gdb_os_error (host_callback *, const char *, ...)
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#ifdef __GNUC__
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#ifdef __GNUC__
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__attribute__ ((__noreturn__))
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__attribute__ ((__noreturn__))
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#endif
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#endif
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;
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;
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static void gdbsim_fetch_register (struct regcache *regcache, int regno);
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static void gdbsim_fetch_register (struct regcache *regcache, int regno);
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static void gdbsim_store_register (struct regcache *regcache, int regno);
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static void gdbsim_store_register (struct regcache *regcache, int regno);
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static void gdbsim_kill (void);
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static void gdbsim_kill (void);
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static void gdbsim_load (char *prog, int fromtty);
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static void gdbsim_load (char *prog, int fromtty);
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static void gdbsim_open (char *args, int from_tty);
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static void gdbsim_open (char *args, int from_tty);
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static void gdbsim_close (int quitting);
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static void gdbsim_close (int quitting);
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static void gdbsim_detach (char *args, int from_tty);
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static void gdbsim_detach (char *args, int from_tty);
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static void gdbsim_resume (ptid_t ptid, int step, enum target_signal siggnal);
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static void gdbsim_resume (ptid_t ptid, int step, enum target_signal siggnal);
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static ptid_t gdbsim_wait (ptid_t ptid, struct target_waitstatus *status);
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static ptid_t gdbsim_wait (ptid_t ptid, struct target_waitstatus *status);
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static void gdbsim_prepare_to_store (struct regcache *regcache);
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static void gdbsim_prepare_to_store (struct regcache *regcache);
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static void gdbsim_files_info (struct target_ops *target);
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static void gdbsim_files_info (struct target_ops *target);
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static void gdbsim_mourn_inferior (void);
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static void gdbsim_mourn_inferior (void);
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static void gdbsim_stop (void);
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static void gdbsim_stop (void);
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void simulator_command (char *args, int from_tty);
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void simulator_command (char *args, int from_tty);
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/* Naming convention:
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/* Naming convention:
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sim_* are the interface to the simulator (see remote-sim.h).
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sim_* are the interface to the simulator (see remote-sim.h).
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gdbsim_* are stuff which is internal to gdb. */
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gdbsim_* are stuff which is internal to gdb. */
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/* Forward data declarations */
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/* Forward data declarations */
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extern struct target_ops gdbsim_ops;
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extern struct target_ops gdbsim_ops;
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static int program_loaded = 0;
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static int program_loaded = 0;
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/* We must keep track of whether the simulator has been opened or not because
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/* We must keep track of whether the simulator has been opened or not because
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GDB can call a target's close routine twice, but sim_close doesn't allow
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GDB can call a target's close routine twice, but sim_close doesn't allow
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this. We also need to record the result of sim_open so we can pass it
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this. We also need to record the result of sim_open so we can pass it
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back to the other sim_foo routines. */
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back to the other sim_foo routines. */
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static SIM_DESC gdbsim_desc = 0;
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static SIM_DESC gdbsim_desc = 0;
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static void
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static void
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dump_mem (char *buf, int len)
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dump_mem (char *buf, int len)
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{
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{
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if (len <= 8)
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if (len <= 8)
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{
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{
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if (len == 8 || len == 4)
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if (len == 8 || len == 4)
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{
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{
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long l[2];
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long l[2];
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memcpy (l, buf, len);
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memcpy (l, buf, len);
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printf_filtered ("\t0x%lx", l[0]);
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printf_filtered ("\t0x%lx", l[0]);
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if (len == 8)
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if (len == 8)
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printf_filtered (" 0x%lx", l[1]);
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printf_filtered (" 0x%lx", l[1]);
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printf_filtered ("\n");
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printf_filtered ("\n");
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}
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}
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else
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else
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{
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{
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int i;
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int i;
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printf_filtered ("\t");
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printf_filtered ("\t");
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for (i = 0; i < len; i++)
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for (i = 0; i < len; i++)
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printf_filtered ("0x%x ", buf[i]);
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printf_filtered ("0x%x ", buf[i]);
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printf_filtered ("\n");
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printf_filtered ("\n");
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}
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}
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}
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}
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}
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}
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static host_callback gdb_callback;
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static host_callback gdb_callback;
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static int callbacks_initialized = 0;
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static int callbacks_initialized = 0;
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/* Initialize gdb_callback. */
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/* Initialize gdb_callback. */
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static void
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static void
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init_callbacks (void)
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init_callbacks (void)
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{
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{
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if (!callbacks_initialized)
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if (!callbacks_initialized)
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{
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{
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gdb_callback = default_callback;
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gdb_callback = default_callback;
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gdb_callback.init (&gdb_callback);
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gdb_callback.init (&gdb_callback);
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gdb_callback.write_stdout = gdb_os_write_stdout;
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gdb_callback.write_stdout = gdb_os_write_stdout;
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gdb_callback.flush_stdout = gdb_os_flush_stdout;
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gdb_callback.flush_stdout = gdb_os_flush_stdout;
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gdb_callback.write_stderr = gdb_os_write_stderr;
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gdb_callback.write_stderr = gdb_os_write_stderr;
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gdb_callback.flush_stderr = gdb_os_flush_stderr;
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gdb_callback.flush_stderr = gdb_os_flush_stderr;
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gdb_callback.printf_filtered = gdb_os_printf_filtered;
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gdb_callback.printf_filtered = gdb_os_printf_filtered;
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gdb_callback.vprintf_filtered = gdb_os_vprintf_filtered;
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gdb_callback.vprintf_filtered = gdb_os_vprintf_filtered;
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gdb_callback.evprintf_filtered = gdb_os_evprintf_filtered;
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gdb_callback.evprintf_filtered = gdb_os_evprintf_filtered;
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gdb_callback.error = gdb_os_error;
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gdb_callback.error = gdb_os_error;
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gdb_callback.poll_quit = gdb_os_poll_quit;
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gdb_callback.poll_quit = gdb_os_poll_quit;
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gdb_callback.magic = HOST_CALLBACK_MAGIC;
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gdb_callback.magic = HOST_CALLBACK_MAGIC;
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callbacks_initialized = 1;
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callbacks_initialized = 1;
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}
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}
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}
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}
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/* Release callbacks (free resources used by them). */
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/* Release callbacks (free resources used by them). */
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static void
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static void
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end_callbacks (void)
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end_callbacks (void)
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{
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{
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if (callbacks_initialized)
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if (callbacks_initialized)
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{
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{
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gdb_callback.shutdown (&gdb_callback);
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gdb_callback.shutdown (&gdb_callback);
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callbacks_initialized = 0;
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callbacks_initialized = 0;
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}
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}
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}
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}
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/* GDB version of os_write_stdout callback. */
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/* GDB version of os_write_stdout callback. */
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static int
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static int
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gdb_os_write_stdout (host_callback *p, const char *buf, int len)
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gdb_os_write_stdout (host_callback *p, const char *buf, int len)
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{
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{
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int i;
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int i;
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char b[2];
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char b[2];
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ui_file_write (gdb_stdtarg, buf, len);
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ui_file_write (gdb_stdtarg, buf, len);
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return len;
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return len;
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}
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}
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/* GDB version of os_flush_stdout callback. */
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/* GDB version of os_flush_stdout callback. */
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static void
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static void
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gdb_os_flush_stdout (host_callback *p)
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gdb_os_flush_stdout (host_callback *p)
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{
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{
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gdb_flush (gdb_stdtarg);
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gdb_flush (gdb_stdtarg);
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}
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}
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/* GDB version of os_write_stderr callback. */
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/* GDB version of os_write_stderr callback. */
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static int
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static int
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gdb_os_write_stderr (host_callback *p, const char *buf, int len)
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gdb_os_write_stderr (host_callback *p, const char *buf, int len)
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{
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{
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int i;
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int i;
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char b[2];
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char b[2];
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for (i = 0; i < len; i++)
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for (i = 0; i < len; i++)
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{
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{
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b[0] = buf[i];
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b[0] = buf[i];
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b[1] = 0;
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b[1] = 0;
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fputs_unfiltered (b, gdb_stdtargerr);
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fputs_unfiltered (b, gdb_stdtargerr);
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}
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}
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return len;
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return len;
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}
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}
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/* GDB version of os_flush_stderr callback. */
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/* GDB version of os_flush_stderr callback. */
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static void
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static void
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gdb_os_flush_stderr (host_callback *p)
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gdb_os_flush_stderr (host_callback *p)
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{
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{
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gdb_flush (gdb_stdtargerr);
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gdb_flush (gdb_stdtargerr);
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}
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}
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/* GDB version of printf_filtered callback. */
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/* GDB version of printf_filtered callback. */
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static void
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static void
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gdb_os_printf_filtered (host_callback * p, const char *format,...)
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gdb_os_printf_filtered (host_callback * p, const char *format,...)
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{
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{
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va_list args;
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va_list args;
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va_start (args, format);
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va_start (args, format);
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vfprintf_filtered (gdb_stdout, format, args);
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vfprintf_filtered (gdb_stdout, format, args);
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va_end (args);
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va_end (args);
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}
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}
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/* GDB version of error vprintf_filtered. */
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/* GDB version of error vprintf_filtered. */
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static void
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static void
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gdb_os_vprintf_filtered (host_callback * p, const char *format, va_list ap)
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gdb_os_vprintf_filtered (host_callback * p, const char *format, va_list ap)
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{
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{
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vfprintf_filtered (gdb_stdout, format, ap);
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vfprintf_filtered (gdb_stdout, format, ap);
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}
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}
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/* GDB version of error evprintf_filtered. */
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/* GDB version of error evprintf_filtered. */
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static void
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static void
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gdb_os_evprintf_filtered (host_callback * p, const char *format, va_list ap)
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gdb_os_evprintf_filtered (host_callback * p, const char *format, va_list ap)
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{
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{
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vfprintf_filtered (gdb_stderr, format, ap);
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vfprintf_filtered (gdb_stderr, format, ap);
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}
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}
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/* GDB version of error callback. JPB fixed for compatibility with latest BFD
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/* GDB version of error callback. JPB fixed for compatibility with latest BFD
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not to return. */
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not to return. */
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static void
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static void
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gdb_os_error (host_callback * p, const char *format,...)
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gdb_os_error (host_callback * p, const char *format,...)
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{
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{
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if (deprecated_error_hook)
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if (deprecated_error_hook)
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(*deprecated_error_hook) ();
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(*deprecated_error_hook) ();
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else
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else
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{
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{
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va_list args;
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va_list args;
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va_start (args, format);
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va_start (args, format);
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verror (format, args);
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verror (format, args);
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va_end (args);
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va_end (args);
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}
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}
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|
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while (1)
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while (1)
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;
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;
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}
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}
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int
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int
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one2one_register_sim_regno (struct gdbarch *gdbarch, int regnum)
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one2one_register_sim_regno (struct gdbarch *gdbarch, int regnum)
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{
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{
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/* Only makes sense to supply raw registers. */
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/* Only makes sense to supply raw registers. */
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gdb_assert (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch));
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gdb_assert (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch));
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return regnum;
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return regnum;
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}
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}
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static void
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static void
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gdbsim_fetch_register (struct regcache *regcache, int regno)
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gdbsim_fetch_register (struct regcache *regcache, int regno)
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{
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{
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struct gdbarch *gdbarch = get_regcache_arch (regcache);
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struct gdbarch *gdbarch = get_regcache_arch (regcache);
|
if (regno == -1)
|
if (regno == -1)
|
{
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{
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for (regno = 0; regno < gdbarch_num_regs (gdbarch); regno++)
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for (regno = 0; regno < gdbarch_num_regs (gdbarch); regno++)
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gdbsim_fetch_register (regcache, regno);
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gdbsim_fetch_register (regcache, regno);
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return;
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return;
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}
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}
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|
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switch (gdbarch_register_sim_regno (gdbarch, regno))
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switch (gdbarch_register_sim_regno (gdbarch, regno))
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{
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{
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case LEGACY_SIM_REGNO_IGNORE:
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case LEGACY_SIM_REGNO_IGNORE:
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break;
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break;
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case SIM_REGNO_DOES_NOT_EXIST:
|
case SIM_REGNO_DOES_NOT_EXIST:
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{
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{
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/* For moment treat a `does not exist' register the same way
|
/* For moment treat a `does not exist' register the same way
|
as an ``unavailable'' register. */
|
as an ``unavailable'' register. */
|
char buf[MAX_REGISTER_SIZE];
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char buf[MAX_REGISTER_SIZE];
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int nr_bytes;
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int nr_bytes;
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memset (buf, 0, MAX_REGISTER_SIZE);
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memset (buf, 0, MAX_REGISTER_SIZE);
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regcache_raw_supply (regcache, regno, buf);
|
regcache_raw_supply (regcache, regno, buf);
|
break;
|
break;
|
}
|
}
|
|
|
default:
|
default:
|
{
|
{
|
static int warn_user = 1;
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static int warn_user = 1;
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char buf[MAX_REGISTER_SIZE];
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char buf[MAX_REGISTER_SIZE];
|
int nr_bytes;
|
int nr_bytes;
|
gdb_assert (regno >= 0 && regno < gdbarch_num_regs (gdbarch));
|
gdb_assert (regno >= 0 && regno < gdbarch_num_regs (gdbarch));
|
memset (buf, 0, MAX_REGISTER_SIZE);
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memset (buf, 0, MAX_REGISTER_SIZE);
|
nr_bytes = sim_fetch_register (gdbsim_desc,
|
nr_bytes = sim_fetch_register (gdbsim_desc,
|
gdbarch_register_sim_regno
|
gdbarch_register_sim_regno
|
(gdbarch, regno),
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(gdbarch, regno),
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buf,
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buf,
|
register_size (gdbarch, regno));
|
register_size (gdbarch, regno));
|
if (nr_bytes > 0
|
if (nr_bytes > 0
|
&& nr_bytes != register_size (gdbarch, regno) && warn_user)
|
&& nr_bytes != register_size (gdbarch, regno) && warn_user)
|
{
|
{
|
fprintf_unfiltered (gdb_stderr,
|
fprintf_unfiltered (gdb_stderr,
|
"Size of register %s (%d/%d) incorrect (%d instead of %d))",
|
"Size of register %s (%d/%d) incorrect (%d instead of %d))",
|
gdbarch_register_name (gdbarch, regno),
|
gdbarch_register_name (gdbarch, regno),
|
regno,
|
regno,
|
gdbarch_register_sim_regno
|
gdbarch_register_sim_regno
|
(gdbarch, regno),
|
(gdbarch, regno),
|
nr_bytes, register_size (gdbarch, regno));
|
nr_bytes, register_size (gdbarch, regno));
|
warn_user = 0;
|
warn_user = 0;
|
}
|
}
|
/* FIXME: cagney/2002-05-27: Should check `nr_bytes == 0'
|
/* FIXME: cagney/2002-05-27: Should check `nr_bytes == 0'
|
indicating that GDB and the SIM have different ideas about
|
indicating that GDB and the SIM have different ideas about
|
which registers are fetchable. */
|
which registers are fetchable. */
|
/* Else if (nr_bytes < 0): an old simulator, that doesn't
|
/* Else if (nr_bytes < 0): an old simulator, that doesn't
|
think to return the register size. Just assume all is ok. */
|
think to return the register size. Just assume all is ok. */
|
regcache_raw_supply (regcache, regno, buf);
|
regcache_raw_supply (regcache, regno, buf);
|
if (remote_debug)
|
if (remote_debug)
|
{
|
{
|
printf_filtered ("gdbsim_fetch_register: %d", regno);
|
printf_filtered ("gdbsim_fetch_register: %d", regno);
|
/* FIXME: We could print something more intelligible. */
|
/* FIXME: We could print something more intelligible. */
|
dump_mem (buf, register_size (gdbarch, regno));
|
dump_mem (buf, register_size (gdbarch, regno));
|
}
|
}
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
|
|
static void
|
static void
|
gdbsim_store_register (struct regcache *regcache, int regno)
|
gdbsim_store_register (struct regcache *regcache, int regno)
|
{
|
{
|
struct gdbarch *gdbarch = get_regcache_arch (regcache);
|
struct gdbarch *gdbarch = get_regcache_arch (regcache);
|
if (regno == -1)
|
if (regno == -1)
|
{
|
{
|
for (regno = 0; regno < gdbarch_num_regs (gdbarch); regno++)
|
for (regno = 0; regno < gdbarch_num_regs (gdbarch); regno++)
|
gdbsim_store_register (regcache, regno);
|
gdbsim_store_register (regcache, regno);
|
return;
|
return;
|
}
|
}
|
else if (gdbarch_register_sim_regno (gdbarch, regno) >= 0)
|
else if (gdbarch_register_sim_regno (gdbarch, regno) >= 0)
|
{
|
{
|
char tmp[MAX_REGISTER_SIZE];
|
char tmp[MAX_REGISTER_SIZE];
|
int nr_bytes;
|
int nr_bytes;
|
regcache_cooked_read (regcache, regno, tmp);
|
regcache_cooked_read (regcache, regno, tmp);
|
nr_bytes = sim_store_register (gdbsim_desc,
|
nr_bytes = sim_store_register (gdbsim_desc,
|
gdbarch_register_sim_regno
|
gdbarch_register_sim_regno
|
(gdbarch, regno),
|
(gdbarch, regno),
|
tmp, register_size (gdbarch, regno));
|
tmp, register_size (gdbarch, regno));
|
if (nr_bytes > 0 && nr_bytes != register_size (gdbarch, regno))
|
if (nr_bytes > 0 && nr_bytes != register_size (gdbarch, regno))
|
internal_error (__FILE__, __LINE__,
|
internal_error (__FILE__, __LINE__,
|
_("Register size different to expected"));
|
_("Register size different to expected"));
|
/* FIXME: cagney/2002-05-27: Should check `nr_bytes == 0'
|
/* FIXME: cagney/2002-05-27: Should check `nr_bytes == 0'
|
indicating that GDB and the SIM have different ideas about
|
indicating that GDB and the SIM have different ideas about
|
which registers are fetchable. */
|
which registers are fetchable. */
|
if (remote_debug)
|
if (remote_debug)
|
{
|
{
|
printf_filtered ("gdbsim_store_register: %d", regno);
|
printf_filtered ("gdbsim_store_register: %d", regno);
|
/* FIXME: We could print something more intelligible. */
|
/* FIXME: We could print something more intelligible. */
|
dump_mem (tmp, register_size (gdbarch, regno));
|
dump_mem (tmp, register_size (gdbarch, regno));
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* Kill the running program. This may involve closing any open files
|
/* Kill the running program. This may involve closing any open files
|
and releasing other resources acquired by the simulated program. */
|
and releasing other resources acquired by the simulated program. */
|
|
|
static void
|
static void
|
gdbsim_kill (void)
|
gdbsim_kill (void)
|
{
|
{
|
if (remote_debug)
|
if (remote_debug)
|
printf_filtered ("gdbsim_kill\n");
|
printf_filtered ("gdbsim_kill\n");
|
|
|
/* There is no need to `kill' running simulator - the simulator is
|
/* There is no need to `kill' running simulator - the simulator is
|
not running. Mourning it is enough. */
|
not running. Mourning it is enough. */
|
target_mourn_inferior ();
|
target_mourn_inferior ();
|
}
|
}
|
|
|
/* Load an executable file into the target process. This is expected to
|
/* Load an executable file into the target process. This is expected to
|
not only bring new code into the target process, but also to update
|
not only bring new code into the target process, but also to update
|
GDB's symbol tables to match. */
|
GDB's symbol tables to match. */
|
|
|
static void
|
static void
|
gdbsim_load (char *args, int fromtty)
|
gdbsim_load (char *args, int fromtty)
|
{
|
{
|
char **argv = buildargv (args);
|
char **argv = buildargv (args);
|
char *prog;
|
char *prog;
|
|
|
if (argv == NULL)
|
if (argv == NULL)
|
nomem (0);
|
nomem (0);
|
|
|
make_cleanup_freeargv (argv);
|
make_cleanup_freeargv (argv);
|
|
|
prog = tilde_expand (argv[0]);
|
prog = tilde_expand (argv[0]);
|
|
|
if (argv[1] != NULL)
|
if (argv[1] != NULL)
|
error (_("GDB sim does not yet support a load offset."));
|
error (_("GDB sim does not yet support a load offset."));
|
|
|
if (remote_debug)
|
if (remote_debug)
|
printf_filtered ("gdbsim_load: prog \"%s\"\n", prog);
|
printf_filtered ("gdbsim_load: prog \"%s\"\n", prog);
|
|
|
/* FIXME: We will print two messages on error.
|
/* FIXME: We will print two messages on error.
|
Need error to either not print anything if passed NULL or need
|
Need error to either not print anything if passed NULL or need
|
another routine that doesn't take any arguments. */
|
another routine that doesn't take any arguments. */
|
if (sim_load (gdbsim_desc, prog, NULL, fromtty) == SIM_RC_FAIL)
|
if (sim_load (gdbsim_desc, prog, NULL, fromtty) == SIM_RC_FAIL)
|
error (_("unable to load program"));
|
error (_("unable to load program"));
|
|
|
/* FIXME: If a load command should reset the targets registers then
|
/* FIXME: If a load command should reset the targets registers then
|
a call to sim_create_inferior() should go here. */
|
a call to sim_create_inferior() should go here. */
|
|
|
program_loaded = 1;
|
program_loaded = 1;
|
}
|
}
|
|
|
|
|
/* Start an inferior process and set inferior_ptid to its pid.
|
/* Start an inferior process and set inferior_ptid to its pid.
|
EXEC_FILE is the file to run.
|
EXEC_FILE is the file to run.
|
ARGS is a string containing the arguments to the program.
|
ARGS is a string containing the arguments to the program.
|
ENV is the environment vector to pass. Errors reported with error().
|
ENV is the environment vector to pass. Errors reported with error().
|
On VxWorks and various standalone systems, we ignore exec_file. */
|
On VxWorks and various standalone systems, we ignore exec_file. */
|
/* This is called not only when we first attach, but also when the
|
/* This is called not only when we first attach, but also when the
|
user types "run" after having attached. */
|
user types "run" after having attached. */
|
|
|
static void
|
static void
|
gdbsim_create_inferior (char *exec_file, char *args, char **env, int from_tty)
|
gdbsim_create_inferior (char *exec_file, char *args, char **env, int from_tty)
|
{
|
{
|
int len;
|
int len;
|
char *arg_buf, **argv;
|
char *arg_buf, **argv;
|
|
|
if (exec_file == 0 || exec_bfd == 0)
|
if (exec_file == 0 || exec_bfd == 0)
|
warning (_("No executable file specified."));
|
warning (_("No executable file specified."));
|
if (!program_loaded)
|
if (!program_loaded)
|
warning (_("No program loaded."));
|
warning (_("No program loaded."));
|
|
|
if (remote_debug)
|
if (remote_debug)
|
printf_filtered ("gdbsim_create_inferior: exec_file \"%s\", args \"%s\"\n",
|
printf_filtered ("gdbsim_create_inferior: exec_file \"%s\", args \"%s\"\n",
|
(exec_file ? exec_file : "(NULL)"),
|
(exec_file ? exec_file : "(NULL)"),
|
args);
|
args);
|
|
|
gdbsim_kill ();
|
gdbsim_kill ();
|
remove_breakpoints ();
|
remove_breakpoints ();
|
init_wait_for_inferior ();
|
init_wait_for_inferior ();
|
|
|
if (exec_file != NULL)
|
if (exec_file != NULL)
|
{
|
{
|
len = strlen (exec_file) + 1 + strlen (args) + 1 + /*slop */ 10;
|
len = strlen (exec_file) + 1 + strlen (args) + 1 + /*slop */ 10;
|
arg_buf = (char *) alloca (len);
|
arg_buf = (char *) alloca (len);
|
arg_buf[0] = '\0';
|
arg_buf[0] = '\0';
|
strcat (arg_buf, exec_file);
|
strcat (arg_buf, exec_file);
|
strcat (arg_buf, " ");
|
strcat (arg_buf, " ");
|
strcat (arg_buf, args);
|
strcat (arg_buf, args);
|
argv = buildargv (arg_buf);
|
argv = buildargv (arg_buf);
|
make_cleanup_freeargv (argv);
|
make_cleanup_freeargv (argv);
|
}
|
}
|
else
|
else
|
argv = NULL;
|
argv = NULL;
|
sim_create_inferior (gdbsim_desc, exec_bfd, argv, env);
|
sim_create_inferior (gdbsim_desc, exec_bfd, argv, env);
|
|
|
inferior_ptid = pid_to_ptid (42);
|
inferior_ptid = pid_to_ptid (42);
|
target_mark_running (&gdbsim_ops);
|
target_mark_running (&gdbsim_ops);
|
insert_breakpoints (); /* Needed to get correct instruction in cache */
|
insert_breakpoints (); /* Needed to get correct instruction in cache */
|
|
|
clear_proceed_status ();
|
clear_proceed_status ();
|
}
|
}
|
|
|
/* The open routine takes the rest of the parameters from the command,
|
/* The open routine takes the rest of the parameters from the command,
|
and (if successful) pushes a new target onto the stack.
|
and (if successful) pushes a new target onto the stack.
|
Targets should supply this routine, if only to provide an error message. */
|
Targets should supply this routine, if only to provide an error message. */
|
/* Called when selecting the simulator. EG: (gdb) target sim name. */
|
/* Called when selecting the simulator. EG: (gdb) target sim name. */
|
|
|
static void
|
static void
|
gdbsim_open (char *args, int from_tty)
|
gdbsim_open (char *args, int from_tty)
|
{
|
{
|
int len;
|
int len;
|
char *arg_buf;
|
char *arg_buf;
|
char **argv;
|
char **argv;
|
|
|
if (remote_debug)
|
if (remote_debug)
|
printf_filtered ("gdbsim_open: args \"%s\"\n", args ? args : "(null)");
|
printf_filtered ("gdbsim_open: args \"%s\"\n", args ? args : "(null)");
|
|
|
/* Remove current simulator if one exists. Only do this if the simulator
|
/* Remove current simulator if one exists. Only do this if the simulator
|
has been opened because sim_close requires it.
|
has been opened because sim_close requires it.
|
This is important because the call to push_target below will cause
|
This is important because the call to push_target below will cause
|
sim_close to be called if the simulator is already open, but push_target
|
sim_close to be called if the simulator is already open, but push_target
|
is called after sim_open! We can't move the call to push_target before
|
is called after sim_open! We can't move the call to push_target before
|
the call to sim_open because sim_open may invoke `error'. */
|
the call to sim_open because sim_open may invoke `error'. */
|
if (gdbsim_desc != NULL)
|
if (gdbsim_desc != NULL)
|
unpush_target (&gdbsim_ops);
|
unpush_target (&gdbsim_ops);
|
|
|
len = (7 + 1 /* gdbsim */
|
len = (7 + 1 /* gdbsim */
|
+ strlen (" -E little")
|
+ strlen (" -E little")
|
+ strlen (" --architecture=xxxxxxxxxx")
|
+ strlen (" --architecture=xxxxxxxxxx")
|
+ (args ? strlen (args) : 0)
|
+ (args ? strlen (args) : 0)
|
+ 50) /* slack */ ;
|
+ 50) /* slack */ ;
|
arg_buf = (char *) alloca (len);
|
arg_buf = (char *) alloca (len);
|
strcpy (arg_buf, "gdbsim"); /* 7 */
|
strcpy (arg_buf, "gdbsim"); /* 7 */
|
/* Specify the byte order for the target when it is explicitly
|
/* Specify the byte order for the target when it is explicitly
|
specified by the user (not auto detected). */
|
specified by the user (not auto detected). */
|
switch (selected_byte_order ())
|
switch (selected_byte_order ())
|
{
|
{
|
case BFD_ENDIAN_BIG:
|
case BFD_ENDIAN_BIG:
|
strcat (arg_buf, " -E big");
|
strcat (arg_buf, " -E big");
|
break;
|
break;
|
case BFD_ENDIAN_LITTLE:
|
case BFD_ENDIAN_LITTLE:
|
strcat (arg_buf, " -E little");
|
strcat (arg_buf, " -E little");
|
break;
|
break;
|
case BFD_ENDIAN_UNKNOWN:
|
case BFD_ENDIAN_UNKNOWN:
|
break;
|
break;
|
}
|
}
|
/* Specify the architecture of the target when it has been
|
/* Specify the architecture of the target when it has been
|
explicitly specified */
|
explicitly specified */
|
if (selected_architecture_name () != NULL)
|
if (selected_architecture_name () != NULL)
|
{
|
{
|
strcat (arg_buf, " --architecture=");
|
strcat (arg_buf, " --architecture=");
|
strcat (arg_buf, selected_architecture_name ());
|
strcat (arg_buf, selected_architecture_name ());
|
}
|
}
|
/* finally, any explicit args */
|
/* finally, any explicit args */
|
if (args)
|
if (args)
|
{
|
{
|
strcat (arg_buf, " "); /* 1 */
|
strcat (arg_buf, " "); /* 1 */
|
strcat (arg_buf, args);
|
strcat (arg_buf, args);
|
}
|
}
|
argv = buildargv (arg_buf);
|
argv = buildargv (arg_buf);
|
if (argv == NULL)
|
if (argv == NULL)
|
error (_("Insufficient memory available to allocate simulator arg list."));
|
error (_("Insufficient memory available to allocate simulator arg list."));
|
make_cleanup_freeargv (argv);
|
make_cleanup_freeargv (argv);
|
|
|
init_callbacks ();
|
init_callbacks ();
|
gdbsim_desc = sim_open (SIM_OPEN_DEBUG, &gdb_callback, exec_bfd, argv);
|
gdbsim_desc = sim_open (SIM_OPEN_DEBUG, &gdb_callback, exec_bfd, argv);
|
|
|
if (gdbsim_desc == 0)
|
if (gdbsim_desc == 0)
|
error (_("unable to create simulator instance"));
|
error (_("unable to create simulator instance"));
|
|
|
push_target (&gdbsim_ops);
|
push_target (&gdbsim_ops);
|
printf_filtered ("Connected to the simulator.\n");
|
printf_filtered ("Connected to the simulator.\n");
|
|
|
/* There's nothing running after "target sim" or "load"; not until
|
/* There's nothing running after "target sim" or "load"; not until
|
"run". */
|
"run". */
|
inferior_ptid = null_ptid;
|
inferior_ptid = null_ptid;
|
target_mark_exited (&gdbsim_ops);
|
target_mark_exited (&gdbsim_ops);
|
}
|
}
|
|
|
/* Does whatever cleanup is required for a target that we are no longer
|
/* Does whatever cleanup is required for a target that we are no longer
|
going to be calling. Argument says whether we are quitting gdb and
|
going to be calling. Argument says whether we are quitting gdb and
|
should not get hung in case of errors, or whether we want a clean
|
should not get hung in case of errors, or whether we want a clean
|
termination even if it takes a while. This routine is automatically
|
termination even if it takes a while. This routine is automatically
|
always called just before a routine is popped off the target stack.
|
always called just before a routine is popped off the target stack.
|
Closing file descriptors and freeing memory are typical things it should
|
Closing file descriptors and freeing memory are typical things it should
|
do. */
|
do. */
|
/* Close out all files and local state before this target loses control. */
|
/* Close out all files and local state before this target loses control. */
|
|
|
static void
|
static void
|
gdbsim_close (int quitting)
|
gdbsim_close (int quitting)
|
{
|
{
|
if (remote_debug)
|
if (remote_debug)
|
printf_filtered ("gdbsim_close: quitting %d\n", quitting);
|
printf_filtered ("gdbsim_close: quitting %d\n", quitting);
|
|
|
program_loaded = 0;
|
program_loaded = 0;
|
|
|
if (gdbsim_desc != NULL)
|
if (gdbsim_desc != NULL)
|
{
|
{
|
sim_close (gdbsim_desc, quitting);
|
sim_close (gdbsim_desc, quitting);
|
gdbsim_desc = NULL;
|
gdbsim_desc = NULL;
|
}
|
}
|
|
|
end_callbacks ();
|
end_callbacks ();
|
generic_mourn_inferior ();
|
generic_mourn_inferior ();
|
}
|
}
|
|
|
/* Takes a program previously attached to and detaches it.
|
/* Takes a program previously attached to and detaches it.
|
The program may resume execution (some targets do, some don't) and will
|
The program may resume execution (some targets do, some don't) and will
|
no longer stop on signals, etc. We better not have left any breakpoints
|
no longer stop on signals, etc. We better not have left any breakpoints
|
in the program or it'll die when it hits one. ARGS is arguments
|
in the program or it'll die when it hits one. ARGS is arguments
|
typed by the user (e.g. a signal to send the process). FROM_TTY
|
typed by the user (e.g. a signal to send the process). FROM_TTY
|
says whether to be verbose or not. */
|
says whether to be verbose or not. */
|
/* Terminate the open connection to the remote debugger.
|
/* Terminate the open connection to the remote debugger.
|
Use this when you want to detach and do something else with your gdb. */
|
Use this when you want to detach and do something else with your gdb. */
|
|
|
static void
|
static void
|
gdbsim_detach (char *args, int from_tty)
|
gdbsim_detach (char *args, int from_tty)
|
{
|
{
|
if (remote_debug)
|
if (remote_debug)
|
printf_filtered ("gdbsim_detach: args \"%s\"\n", args);
|
printf_filtered ("gdbsim_detach: args \"%s\"\n", args);
|
|
|
pop_target (); /* calls gdbsim_close to do the real work */
|
pop_target (); /* calls gdbsim_close to do the real work */
|
if (from_tty)
|
if (from_tty)
|
printf_filtered ("Ending simulator %s debugging\n", target_shortname);
|
printf_filtered ("Ending simulator %s debugging\n", target_shortname);
|
}
|
}
|
|
|
/* Resume execution of the target process. STEP says whether to single-step
|
/* Resume execution of the target process. STEP says whether to single-step
|
or to run free; SIGGNAL is the signal value (e.g. SIGINT) to be given
|
or to run free; SIGGNAL is the signal value (e.g. SIGINT) to be given
|
to the target, or zero for no signal. */
|
to the target, or zero for no signal. */
|
|
|
static enum target_signal resume_siggnal;
|
static enum target_signal resume_siggnal;
|
static int resume_step;
|
static int resume_step;
|
|
|
static void
|
static void
|
gdbsim_resume (ptid_t ptid, int step, enum target_signal siggnal)
|
gdbsim_resume (ptid_t ptid, int step, enum target_signal siggnal)
|
{
|
{
|
if (PIDGET (inferior_ptid) != 42)
|
if (PIDGET (inferior_ptid) != 42)
|
error (_("The program is not being run."));
|
error (_("The program is not being run."));
|
|
|
if (remote_debug)
|
if (remote_debug)
|
printf_filtered ("gdbsim_resume: step %d, signal %d\n", step, siggnal);
|
printf_filtered ("gdbsim_resume: step %d, signal %d\n", step, siggnal);
|
|
|
resume_siggnal = siggnal;
|
resume_siggnal = siggnal;
|
resume_step = step;
|
resume_step = step;
|
}
|
}
|
|
|
/* Notify the simulator of an asynchronous request to stop.
|
/* Notify the simulator of an asynchronous request to stop.
|
|
|
The simulator shall ensure that the stop request is eventually
|
The simulator shall ensure that the stop request is eventually
|
delivered to the simulator. If the call is made while the
|
delivered to the simulator. If the call is made while the
|
simulator is not running then the stop request is processed when
|
simulator is not running then the stop request is processed when
|
the simulator is next resumed.
|
the simulator is next resumed.
|
|
|
For simulators that do not support this operation, just abort */
|
For simulators that do not support this operation, just abort */
|
|
|
static void
|
static void
|
gdbsim_stop (void)
|
gdbsim_stop (void)
|
{
|
{
|
if (!sim_stop (gdbsim_desc))
|
if (!sim_stop (gdbsim_desc))
|
{
|
{
|
quit ();
|
quit ();
|
}
|
}
|
}
|
}
|
|
|
/* GDB version of os_poll_quit callback.
|
/* GDB version of os_poll_quit callback.
|
Taken from gdb/util.c - should be in a library. */
|
Taken from gdb/util.c - should be in a library. */
|
|
|
static int
|
static int
|
gdb_os_poll_quit (host_callback *p)
|
gdb_os_poll_quit (host_callback *p)
|
{
|
{
|
if (deprecated_ui_loop_hook != NULL)
|
if (deprecated_ui_loop_hook != NULL)
|
deprecated_ui_loop_hook (0);
|
deprecated_ui_loop_hook (0);
|
|
|
if (quit_flag) /* gdb's idea of quit */
|
if (quit_flag) /* gdb's idea of quit */
|
{
|
{
|
quit_flag = 0; /* we've stolen it */
|
quit_flag = 0; /* we've stolen it */
|
return 1;
|
return 1;
|
}
|
}
|
else if (immediate_quit)
|
else if (immediate_quit)
|
{
|
{
|
return 1;
|
return 1;
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Wait for inferior process to do something. Return pid of child,
|
/* Wait for inferior process to do something. Return pid of child,
|
or -1 in case of error; store status through argument pointer STATUS,
|
or -1 in case of error; store status through argument pointer STATUS,
|
just as `wait' would. */
|
just as `wait' would. */
|
|
|
static void
|
static void
|
gdbsim_cntrl_c (int signo)
|
gdbsim_cntrl_c (int signo)
|
{
|
{
|
gdbsim_stop ();
|
gdbsim_stop ();
|
}
|
}
|
|
|
static ptid_t
|
static ptid_t
|
gdbsim_wait (ptid_t ptid, struct target_waitstatus *status)
|
gdbsim_wait (ptid_t ptid, struct target_waitstatus *status)
|
{
|
{
|
static RETSIGTYPE (*prev_sigint) ();
|
static RETSIGTYPE (*prev_sigint) ();
|
int sigrc = 0;
|
int sigrc = 0;
|
enum sim_stop reason = sim_running;
|
enum sim_stop reason = sim_running;
|
|
|
if (remote_debug)
|
if (remote_debug)
|
printf_filtered ("gdbsim_wait\n");
|
printf_filtered ("gdbsim_wait\n");
|
|
|
#if defined (HAVE_SIGACTION) && defined (SA_RESTART)
|
#if defined (HAVE_SIGACTION) && defined (SA_RESTART)
|
{
|
{
|
struct sigaction sa, osa;
|
struct sigaction sa, osa;
|
sa.sa_handler = gdbsim_cntrl_c;
|
sa.sa_handler = gdbsim_cntrl_c;
|
sigemptyset (&sa.sa_mask);
|
sigemptyset (&sa.sa_mask);
|
sa.sa_flags = 0;
|
sa.sa_flags = 0;
|
sigaction (SIGINT, &sa, &osa);
|
sigaction (SIGINT, &sa, &osa);
|
prev_sigint = osa.sa_handler;
|
prev_sigint = osa.sa_handler;
|
}
|
}
|
#else
|
#else
|
prev_sigint = signal (SIGINT, gdbsim_cntrl_c);
|
prev_sigint = signal (SIGINT, gdbsim_cntrl_c);
|
#endif
|
#endif
|
sim_resume (gdbsim_desc, resume_step, resume_siggnal);
|
sim_resume (gdbsim_desc, resume_step, resume_siggnal);
|
signal (SIGINT, prev_sigint);
|
signal (SIGINT, prev_sigint);
|
resume_step = 0;
|
resume_step = 0;
|
|
|
sim_stop_reason (gdbsim_desc, &reason, &sigrc);
|
sim_stop_reason (gdbsim_desc, &reason, &sigrc);
|
|
|
switch (reason)
|
switch (reason)
|
{
|
{
|
case sim_exited:
|
case sim_exited:
|
status->kind = TARGET_WAITKIND_EXITED;
|
status->kind = TARGET_WAITKIND_EXITED;
|
status->value.integer = sigrc;
|
status->value.integer = sigrc;
|
break;
|
break;
|
case sim_stopped:
|
case sim_stopped:
|
switch (sigrc)
|
switch (sigrc)
|
{
|
{
|
case TARGET_SIGNAL_ABRT:
|
case TARGET_SIGNAL_ABRT:
|
quit ();
|
quit ();
|
break;
|
break;
|
case TARGET_SIGNAL_INT:
|
case TARGET_SIGNAL_INT:
|
case TARGET_SIGNAL_TRAP:
|
case TARGET_SIGNAL_TRAP:
|
default:
|
default:
|
status->kind = TARGET_WAITKIND_STOPPED;
|
status->kind = TARGET_WAITKIND_STOPPED;
|
status->value.sig = sigrc;
|
status->value.sig = sigrc;
|
break;
|
break;
|
}
|
}
|
break;
|
break;
|
case sim_signalled:
|
case sim_signalled:
|
status->kind = TARGET_WAITKIND_SIGNALLED;
|
status->kind = TARGET_WAITKIND_SIGNALLED;
|
status->value.sig = sigrc;
|
status->value.sig = sigrc;
|
break;
|
break;
|
case sim_running:
|
case sim_running:
|
case sim_polling:
|
case sim_polling:
|
/* FIXME: Is this correct? */
|
/* FIXME: Is this correct? */
|
break;
|
break;
|
}
|
}
|
|
|
return inferior_ptid;
|
return inferior_ptid;
|
}
|
}
|
|
|
/* Get ready to modify the registers array. On machines which store
|
/* Get ready to modify the registers array. On machines which store
|
individual registers, this doesn't need to do anything. On machines
|
individual registers, this doesn't need to do anything. On machines
|
which store all the registers in one fell swoop, this makes sure
|
which store all the registers in one fell swoop, this makes sure
|
that registers contains all the registers from the program being
|
that registers contains all the registers from the program being
|
debugged. */
|
debugged. */
|
|
|
static void
|
static void
|
gdbsim_prepare_to_store (struct regcache *regcache)
|
gdbsim_prepare_to_store (struct regcache *regcache)
|
{
|
{
|
/* Do nothing, since we can store individual regs */
|
/* Do nothing, since we can store individual regs */
|
}
|
}
|
|
|
/* Transfer LEN bytes between GDB address MYADDR and target address
|
/* Transfer LEN bytes between GDB address MYADDR and target address
|
MEMADDR. If WRITE is non-zero, transfer them to the target,
|
MEMADDR. If WRITE is non-zero, transfer them to the target,
|
otherwise transfer them from the target. TARGET is unused.
|
otherwise transfer them from the target. TARGET is unused.
|
|
|
Returns the number of bytes transferred. */
|
Returns the number of bytes transferred. */
|
|
|
static int
|
static int
|
gdbsim_xfer_inferior_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len,
|
gdbsim_xfer_inferior_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len,
|
int write, struct mem_attrib *attrib,
|
int write, struct mem_attrib *attrib,
|
struct target_ops *target)
|
struct target_ops *target)
|
{
|
{
|
/* If no program is running yet, then ignore the simulator for
|
/* If no program is running yet, then ignore the simulator for
|
memory. Pass the request down to the next target, hopefully
|
memory. Pass the request down to the next target, hopefully
|
an exec file. */
|
an exec file. */
|
if (!target_has_execution)
|
if (!target_has_execution)
|
return 0;
|
return 0;
|
|
|
if (!program_loaded)
|
if (!program_loaded)
|
error (_("No program loaded."));
|
error (_("No program loaded."));
|
|
|
if (remote_debug)
|
if (remote_debug)
|
{
|
{
|
/* FIXME: Send to something other than STDOUT? */
|
/* FIXME: Send to something other than STDOUT? */
|
printf_filtered ("gdbsim_xfer_inferior_memory: myaddr 0x");
|
printf_filtered ("gdbsim_xfer_inferior_memory: myaddr 0x");
|
gdb_print_host_address (myaddr, gdb_stdout);
|
gdb_print_host_address (myaddr, gdb_stdout);
|
printf_filtered (", memaddr 0x%s, len %d, write %d\n",
|
printf_filtered (", memaddr 0x%s, len %d, write %d\n",
|
paddr_nz (memaddr), len, write);
|
paddr_nz (memaddr), len, write);
|
if (remote_debug && write)
|
if (remote_debug && write)
|
dump_mem (myaddr, len);
|
dump_mem (myaddr, len);
|
}
|
}
|
|
|
if (write)
|
if (write)
|
{
|
{
|
len = sim_write (gdbsim_desc, memaddr, myaddr, len);
|
len = sim_write (gdbsim_desc, memaddr, myaddr, len);
|
}
|
}
|
else
|
else
|
{
|
{
|
len = sim_read (gdbsim_desc, memaddr, myaddr, len);
|
len = sim_read (gdbsim_desc, memaddr, myaddr, len);
|
if (remote_debug && len > 0)
|
if (remote_debug && len > 0)
|
dump_mem (myaddr, len);
|
dump_mem (myaddr, len);
|
}
|
}
|
return len;
|
return len;
|
}
|
}
|
|
|
static void
|
static void
|
gdbsim_files_info (struct target_ops *target)
|
gdbsim_files_info (struct target_ops *target)
|
{
|
{
|
char *file = "nothing";
|
char *file = "nothing";
|
|
|
if (exec_bfd)
|
if (exec_bfd)
|
file = bfd_get_filename (exec_bfd);
|
file = bfd_get_filename (exec_bfd);
|
|
|
if (remote_debug)
|
if (remote_debug)
|
printf_filtered ("gdbsim_files_info: file \"%s\"\n", file);
|
printf_filtered ("gdbsim_files_info: file \"%s\"\n", file);
|
|
|
if (exec_bfd)
|
if (exec_bfd)
|
{
|
{
|
printf_filtered ("\tAttached to %s running program %s\n",
|
printf_filtered ("\tAttached to %s running program %s\n",
|
target_shortname, file);
|
target_shortname, file);
|
sim_info (gdbsim_desc, 0);
|
sim_info (gdbsim_desc, 0);
|
}
|
}
|
}
|
}
|
|
|
/* Clear the simulator's notion of what the break points are. */
|
/* Clear the simulator's notion of what the break points are. */
|
|
|
static void
|
static void
|
gdbsim_mourn_inferior (void)
|
gdbsim_mourn_inferior (void)
|
{
|
{
|
if (remote_debug)
|
if (remote_debug)
|
printf_filtered ("gdbsim_mourn_inferior:\n");
|
printf_filtered ("gdbsim_mourn_inferior:\n");
|
|
|
remove_breakpoints ();
|
remove_breakpoints ();
|
target_mark_exited (&gdbsim_ops);
|
target_mark_exited (&gdbsim_ops);
|
generic_mourn_inferior ();
|
generic_mourn_inferior ();
|
}
|
}
|
|
|
/* Pass the command argument through to the simulator verbatim. The
|
/* Pass the command argument through to the simulator verbatim. The
|
simulator must do any command interpretation work. */
|
simulator must do any command interpretation work. */
|
|
|
void
|
void
|
simulator_command (char *args, int from_tty)
|
simulator_command (char *args, int from_tty)
|
{
|
{
|
if (gdbsim_desc == NULL)
|
if (gdbsim_desc == NULL)
|
{
|
{
|
|
|
/* PREVIOUSLY: The user may give a command before the simulator
|
/* PREVIOUSLY: The user may give a command before the simulator
|
is opened. [...] (??? assuming of course one wishes to
|
is opened. [...] (??? assuming of course one wishes to
|
continue to allow commands to be sent to unopened simulators,
|
continue to allow commands to be sent to unopened simulators,
|
which isn't entirely unreasonable). */
|
which isn't entirely unreasonable). */
|
|
|
/* The simulator is a builtin abstraction of a remote target.
|
/* The simulator is a builtin abstraction of a remote target.
|
Consistent with that model, access to the simulator, via sim
|
Consistent with that model, access to the simulator, via sim
|
commands, is restricted to the period when the channel to the
|
commands, is restricted to the period when the channel to the
|
simulator is open. */
|
simulator is open. */
|
|
|
error (_("Not connected to the simulator target"));
|
error (_("Not connected to the simulator target"));
|
}
|
}
|
|
|
sim_do_command (gdbsim_desc, args);
|
sim_do_command (gdbsim_desc, args);
|
|
|
/* Invalidate the register cache, in case the simulator command does
|
/* Invalidate the register cache, in case the simulator command does
|
something funny. */
|
something funny. */
|
registers_changed ();
|
registers_changed ();
|
}
|
}
|
|
|
/* Define the target subroutine names */
|
/* Define the target subroutine names */
|
|
|
struct target_ops gdbsim_ops;
|
struct target_ops gdbsim_ops;
|
|
|
static void
|
static void
|
init_gdbsim_ops (void)
|
init_gdbsim_ops (void)
|
{
|
{
|
gdbsim_ops.to_shortname = "sim";
|
gdbsim_ops.to_shortname = "sim";
|
gdbsim_ops.to_longname = "simulator";
|
gdbsim_ops.to_longname = "simulator";
|
gdbsim_ops.to_doc = "Use the compiled-in simulator.";
|
gdbsim_ops.to_doc = "Use the compiled-in simulator.";
|
gdbsim_ops.to_open = gdbsim_open;
|
gdbsim_ops.to_open = gdbsim_open;
|
gdbsim_ops.to_close = gdbsim_close;
|
gdbsim_ops.to_close = gdbsim_close;
|
gdbsim_ops.to_detach = gdbsim_detach;
|
gdbsim_ops.to_detach = gdbsim_detach;
|
gdbsim_ops.to_resume = gdbsim_resume;
|
gdbsim_ops.to_resume = gdbsim_resume;
|
gdbsim_ops.to_wait = gdbsim_wait;
|
gdbsim_ops.to_wait = gdbsim_wait;
|
gdbsim_ops.to_fetch_registers = gdbsim_fetch_register;
|
gdbsim_ops.to_fetch_registers = gdbsim_fetch_register;
|
gdbsim_ops.to_store_registers = gdbsim_store_register;
|
gdbsim_ops.to_store_registers = gdbsim_store_register;
|
gdbsim_ops.to_prepare_to_store = gdbsim_prepare_to_store;
|
gdbsim_ops.to_prepare_to_store = gdbsim_prepare_to_store;
|
gdbsim_ops.deprecated_xfer_memory = gdbsim_xfer_inferior_memory;
|
gdbsim_ops.deprecated_xfer_memory = gdbsim_xfer_inferior_memory;
|
gdbsim_ops.to_files_info = gdbsim_files_info;
|
gdbsim_ops.to_files_info = gdbsim_files_info;
|
gdbsim_ops.to_insert_breakpoint = memory_insert_breakpoint;
|
gdbsim_ops.to_insert_breakpoint = memory_insert_breakpoint;
|
gdbsim_ops.to_remove_breakpoint = memory_remove_breakpoint;
|
gdbsim_ops.to_remove_breakpoint = memory_remove_breakpoint;
|
gdbsim_ops.to_kill = gdbsim_kill;
|
gdbsim_ops.to_kill = gdbsim_kill;
|
gdbsim_ops.to_load = gdbsim_load;
|
gdbsim_ops.to_load = gdbsim_load;
|
gdbsim_ops.to_create_inferior = gdbsim_create_inferior;
|
gdbsim_ops.to_create_inferior = gdbsim_create_inferior;
|
gdbsim_ops.to_mourn_inferior = gdbsim_mourn_inferior;
|
gdbsim_ops.to_mourn_inferior = gdbsim_mourn_inferior;
|
gdbsim_ops.to_stop = gdbsim_stop;
|
gdbsim_ops.to_stop = gdbsim_stop;
|
gdbsim_ops.to_stratum = process_stratum;
|
gdbsim_ops.to_stratum = process_stratum;
|
gdbsim_ops.to_has_all_memory = 1;
|
gdbsim_ops.to_has_all_memory = 1;
|
gdbsim_ops.to_has_memory = 1;
|
gdbsim_ops.to_has_memory = 1;
|
gdbsim_ops.to_has_stack = 1;
|
gdbsim_ops.to_has_stack = 1;
|
gdbsim_ops.to_has_registers = 1;
|
gdbsim_ops.to_has_registers = 1;
|
gdbsim_ops.to_has_execution = 1;
|
gdbsim_ops.to_has_execution = 1;
|
gdbsim_ops.to_magic = OPS_MAGIC;
|
gdbsim_ops.to_magic = OPS_MAGIC;
|
|
|
#ifdef TARGET_REDEFINE_DEFAULT_OPS
|
#ifdef TARGET_REDEFINE_DEFAULT_OPS
|
TARGET_REDEFINE_DEFAULT_OPS (&gdbsim_ops);
|
TARGET_REDEFINE_DEFAULT_OPS (&gdbsim_ops);
|
#endif
|
#endif
|
}
|
}
|
|
|
void
|
void
|
_initialize_remote_sim (void)
|
_initialize_remote_sim (void)
|
{
|
{
|
init_gdbsim_ops ();
|
init_gdbsim_ops ();
|
add_target (&gdbsim_ops);
|
add_target (&gdbsim_ops);
|
|
|
add_com ("sim", class_obscure, simulator_command,
|
add_com ("sim", class_obscure, simulator_command,
|
_("Send a command to the simulator."));
|
_("Send a command to the simulator."));
|
}
|
}
|
|
|
