示例#1
0
文件: remote-sim.c 项目: DonCN/haiku
static int
gdbsim_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len,
			     int write, struct mem_attrib *attrib,
			     struct target_ops *target)
{
  if (!program_loaded)
    error ("No program loaded.");

  if (sr_get_debug ())
    {
      /* FIXME: Send to something other than STDOUT? */
      printf_filtered ("gdbsim_xfer_inferior_memory: myaddr 0x");
      gdb_print_host_address (myaddr, gdb_stdout);
      printf_filtered (", memaddr 0x%s, len %d, write %d\n",
		       paddr_nz (memaddr), len, write);
      if (sr_get_debug () && write)
	dump_mem (myaddr, len);
    }

  if (write)
    {
      len = sim_write (gdbsim_desc, memaddr, myaddr, len);
    }
  else
    {
      len = sim_read (gdbsim_desc, memaddr, myaddr, len);
      if (sr_get_debug () && len > 0)
	dump_mem (myaddr, len);
    }
  return len;
}
示例#2
0
文件: remote-sim.c 项目: DonCN/haiku
static void
gdbsim_store_register (int regno)
{
  if (regno == -1)
    {
      for (regno = 0; regno < NUM_REGS; regno++)
	gdbsim_store_register (regno);
      return;
    }
  else if (REGISTER_SIM_REGNO (regno) >= 0)
    {
      char tmp[MAX_REGISTER_SIZE];
      int nr_bytes;
      deprecated_read_register_gen (regno, tmp);
      nr_bytes = sim_store_register (gdbsim_desc,
				     REGISTER_SIM_REGNO (regno),
				     tmp, register_size (current_gdbarch, regno));
      if (nr_bytes > 0 && nr_bytes != register_size (current_gdbarch, regno))
	internal_error (__FILE__, __LINE__,
			"Register size different to expected");
      /* FIXME: cagney/2002-05-27: Should check `nr_bytes == 0'
	 indicating that GDB and the SIM have different ideas about
	 which registers are fetchable.  */
      if (sr_get_debug ())
	{
	  printf_filtered ("gdbsim_store_register: %d", regno);
	  /* FIXME: We could print something more intelligible.  */
	  dump_mem (tmp, register_size (current_gdbarch, regno));
	}
    }
}
示例#3
0
文件: remote-sim.c 项目: DonCN/haiku
static void
gdbsim_fetch_register (int regno)
{
  if (regno == -1)
    {
      for (regno = 0; regno < NUM_REGS; regno++)
	gdbsim_fetch_register (regno);
      return;
    }

  switch (REGISTER_SIM_REGNO (regno))
    {
    case LEGACY_SIM_REGNO_IGNORE:
      break;
    case SIM_REGNO_DOES_NOT_EXIST:
      {
	/* For moment treat a `does not exist' register the same way
           as an ``unavailable'' register.  */
	char buf[MAX_REGISTER_SIZE];
	int nr_bytes;
	memset (buf, 0, MAX_REGISTER_SIZE);
	regcache_raw_supply (current_regcache, regno, buf);
	set_register_cached (regno, -1);
	break;
      }
    default:
      {
	static int warn_user = 1;
	char buf[MAX_REGISTER_SIZE];
	int nr_bytes;
	gdb_assert (regno >= 0 && regno < NUM_REGS);
	memset (buf, 0, MAX_REGISTER_SIZE);
	nr_bytes = sim_fetch_register (gdbsim_desc,
				       REGISTER_SIM_REGNO (regno),
				       buf, register_size (current_gdbarch, regno));
	if (nr_bytes > 0 && nr_bytes != register_size (current_gdbarch, regno) && warn_user)
	  {
	    fprintf_unfiltered (gdb_stderr,
				"Size of register %s (%d/%d) incorrect (%d instead of %d))",
				REGISTER_NAME (regno),
				regno, REGISTER_SIM_REGNO (regno),
				nr_bytes, register_size (current_gdbarch, regno));
	    warn_user = 0;
	  }
	/* FIXME: cagney/2002-05-27: Should check `nr_bytes == 0'
	   indicating that GDB and the SIM have different ideas about
	   which registers are fetchable.  */
	/* Else if (nr_bytes < 0): an old simulator, that doesn't
	   think to return the register size.  Just assume all is ok.  */
	regcache_raw_supply (current_regcache, regno, buf);
	if (sr_get_debug ())
	  {
	    printf_filtered ("gdbsim_fetch_register: %d", regno);
	    /* FIXME: We could print something more intelligible.  */
	    dump_mem (buf, register_size (current_gdbarch, regno));
	  }
	break;
      }
    }
}
static ptid_t
gdbsim_wait (ptid_t ptid, struct target_waitstatus *status)
{
  static RETSIGTYPE (*prev_sigint) ();
  int sigrc = 0;
  enum sim_stop reason = sim_running;

  if (sr_get_debug ())
    printf_filtered ("gdbsim_wait\n");

#if defined (HAVE_SIGACTION) && defined (SA_RESTART)
  {
    struct sigaction sa, osa;
    sa.sa_handler = gdbsim_cntrl_c;
    sigemptyset (&sa.sa_mask);
    sa.sa_flags = 0;
    sigaction (SIGINT, &sa, &osa);
    prev_sigint = osa.sa_handler;
  }
#else
  prev_sigint = signal (SIGINT, gdbsim_cntrl_c);
#endif
  sim_resume (gdbsim_desc, resume_step, resume_siggnal);
  signal (SIGINT, prev_sigint);
  resume_step = 0;

  sim_stop_reason (gdbsim_desc, &reason, &sigrc);

  switch (reason)
    {
    case sim_exited:
      status->kind = TARGET_WAITKIND_EXITED;
      status->value.integer = sigrc;
      break;
    case sim_stopped:
      switch (sigrc)
	{
	case TARGET_SIGNAL_ABRT:
	  quit ();
	  break;
	case TARGET_SIGNAL_INT:
	case TARGET_SIGNAL_TRAP:
	default:
	  status->kind = TARGET_WAITKIND_STOPPED;
	  status->value.sig = sigrc;
	  break;
	}
      break;
    case sim_signalled:
      status->kind = TARGET_WAITKIND_SIGNALLED;
      status->value.sig = sigrc;
      break;
    case sim_running:
    case sim_polling:
      /* FIXME: Is this correct? */
      break;
    }

  return inferior_ptid;
}
static void
gdbsim_load (char *args, int fromtty)
{
  char **argv = buildargv (args);
  char *prog;

  if (argv == NULL)
    nomem (0);

  make_cleanup_freeargv (argv);

  prog = tilde_expand (argv[0]);

  if (argv[1] != NULL)
    error (_("GDB sim does not yet support a load offset."));

  if (sr_get_debug ())
    printf_filtered ("gdbsim_load: prog \"%s\"\n", prog);

  /* FIXME: We will print two messages on error.
     Need error to either not print anything if passed NULL or need
     another routine that doesn't take any arguments.  */
  if (sim_load (gdbsim_desc, prog, NULL, fromtty) == SIM_RC_FAIL)
    error (_("unable to load program"));

  /* FIXME: If a load command should reset the targets registers then
     a call to sim_create_inferior() should go here. */

  program_loaded = 1;
}
示例#6
0
文件: remote-sim.c 项目: DonCN/haiku
static void
gdbsim_mourn_inferior (void)
{
  if (sr_get_debug ())
    printf_filtered ("gdbsim_mourn_inferior:\n");

  remove_breakpoints ();
  generic_mourn_inferior ();
}
示例#7
0
文件: remote-sim.c 项目: DonCN/haiku
static void
gdbsim_detach (char *args, int from_tty)
{
  if (sr_get_debug ())
    printf_filtered ("gdbsim_detach: args \"%s\"\n", args);

  pop_target ();		/* calls gdbsim_close to do the real work */
  if (from_tty)
    printf_filtered ("Ending simulator %s debugging\n", target_shortname);
}
示例#8
0
文件: remote-sim.c 项目: DonCN/haiku
static void
gdbsim_kill (void)
{
  if (sr_get_debug ())
    printf_filtered ("gdbsim_kill\n");

  /* There is no need to `kill' running simulator - the simulator is
     not running */
  inferior_ptid = null_ptid;
}
static void
gdbsim_kill (void)
{
  if (sr_get_debug ())
    printf_filtered ("gdbsim_kill\n");

  /* There is no need to `kill' running simulator - the simulator is
     not running.  Mourning it is enough.  */
  target_mourn_inferior ();
}
示例#10
0
文件: remote-sim.c 项目: DonCN/haiku
static void
gdbsim_resume (ptid_t ptid, int step, enum target_signal siggnal)
{
  if (PIDGET (inferior_ptid) != 42)
    error ("The program is not being run.");

  if (sr_get_debug ())
    printf_filtered ("gdbsim_resume: step %d, signal %d\n", step, siggnal);

  resume_siggnal = siggnal;
  resume_step = step;
}
示例#11
0
static int
gdbsim_xfer_inferior_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len,
			     int write, struct mem_attrib *attrib,
			     struct target_ops *target)
{
  /* If no program is running yet, then ignore the simulator for
     memory.  Pass the request down to the next target, hopefully
     an exec file.  */
  if (!target_has_execution)
    return 0;

  if (!program_loaded)
    error (_("No program loaded."));

  if (sr_get_debug ())
    {
      /* FIXME: Send to something other than STDOUT? */
      printf_filtered ("gdbsim_xfer_inferior_memory: myaddr 0x");
      gdb_print_host_address (myaddr, gdb_stdout);
      printf_filtered (", memaddr 0x%s, len %d, write %d\n",
		       paddr_nz (memaddr), len, write);
      if (sr_get_debug () && write)
	dump_mem (myaddr, len);
    }

  if (write)
    {
      len = sim_write (gdbsim_desc, memaddr, myaddr, len);
    }
  else
    {
      len = sim_read (gdbsim_desc, memaddr, myaddr, len);
      if (sr_get_debug () && len > 0)
	dump_mem (myaddr, len);
    }
  return len;
}
示例#12
0
文件: remote-sim.c 项目: DonCN/haiku
static void
gdbsim_close (int quitting)
{
  if (sr_get_debug ())
    printf_filtered ("gdbsim_close: quitting %d\n", quitting);

  program_loaded = 0;

  if (gdbsim_desc != NULL)
    {
      sim_close (gdbsim_desc, quitting);
      gdbsim_desc = NULL;
    }

  end_callbacks ();
  generic_mourn_inferior ();
}
示例#13
0
文件: remote-sim.c 项目: DonCN/haiku
static void
gdbsim_files_info (struct target_ops *target)
{
  char *file = "nothing";

  if (exec_bfd)
    file = bfd_get_filename (exec_bfd);

  if (sr_get_debug ())
    printf_filtered ("gdbsim_files_info: file \"%s\"\n", file);

  if (exec_bfd)
    {
      printf_filtered ("\tAttached to %s running program %s\n",
		       target_shortname, file);
      sim_info (gdbsim_desc, 0);
    }
}
示例#14
0
文件: remote-sim.c 项目: DonCN/haiku
static void
gdbsim_create_inferior (char *exec_file, char *args, char **env, int from_tty)
{
  int len;
  char *arg_buf, **argv;

  if (exec_file == 0 || exec_bfd == 0)
    warning ("No executable file specified.");
  if (!program_loaded)
    warning ("No program loaded.");

  if (sr_get_debug ())
    printf_filtered ("gdbsim_create_inferior: exec_file \"%s\", args \"%s\"\n",
		     (exec_file ? exec_file : "(NULL)"),
		     args);

  gdbsim_kill ();
  remove_breakpoints ();
  init_wait_for_inferior ();

  if (exec_file != NULL)
    {
      len = strlen (exec_file) + 1 + strlen (args) + 1 + /*slop */ 10;
      arg_buf = (char *) alloca (len);
      arg_buf[0] = '\0';
      strcat (arg_buf, exec_file);
      strcat (arg_buf, " ");
      strcat (arg_buf, args);
      argv = buildargv (arg_buf);
      make_cleanup_freeargv (argv);
    }
  else
    argv = NULL;
  sim_create_inferior (gdbsim_desc, exec_bfd, argv, env);

  inferior_ptid = pid_to_ptid (42);
  insert_breakpoints ();	/* Needed to get correct instruction in cache */

  clear_proceed_status ();

  /* NB: Entry point already set by sim_create_inferior. */
  proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0);
}
示例#15
0
文件: remote-sim.c 项目: DonCN/haiku
static void
gdbsim_load (char *prog, int fromtty)
{
  if (sr_get_debug ())
    printf_filtered ("gdbsim_load: prog \"%s\"\n", prog);

  inferior_ptid = null_ptid;

  /* FIXME: We will print two messages on error.
     Need error to either not print anything if passed NULL or need
     another routine that doesn't take any arguments.  */
  if (sim_load (gdbsim_desc, prog, NULL, fromtty) == SIM_RC_FAIL)
    error ("unable to load program");

  /* FIXME: If a load command should reset the targets registers then
     a call to sim_create_inferior() should go here. */

  program_loaded = 1;
}
示例#16
0
文件: remote-sim.c 项目: DonCN/haiku
static void
gdbsim_open (char *args, int from_tty)
{
  int len;
  char *arg_buf;
  char **argv;

  if (sr_get_debug ())
    printf_filtered ("gdbsim_open: args \"%s\"\n", args ? args : "(null)");

  /* Remove current simulator if one exists.  Only do this if the simulator
     has been opened because sim_close requires it.
     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
     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'.  */
  if (gdbsim_desc != NULL)
    unpush_target (&gdbsim_ops);

  len = (7 + 1			/* gdbsim */
	 + strlen (" -E little")
	 + strlen (" --architecture=xxxxxxxxxx")
	 + (args ? strlen (args) : 0)
	 + 50) /* slack */ ;
  arg_buf = (char *) alloca (len);
  strcpy (arg_buf, "gdbsim");	/* 7 */
  /* Specify the byte order for the target when it is both selectable
     and explicitly specified by the user (not auto detected). */
  switch (selected_byte_order ())
    {
    case BFD_ENDIAN_BIG:
      strcat (arg_buf, " -E big");
      break;
    case BFD_ENDIAN_LITTLE:
      strcat (arg_buf, " -E little");
      break;
    case BFD_ENDIAN_UNKNOWN:
      break;
    }
  /* Specify the architecture of the target when it has been
     explicitly specified */
  if (selected_architecture_name () != NULL)
    {
      strcat (arg_buf, " --architecture=");
      strcat (arg_buf, selected_architecture_name ());
    }
  /* finally, any explicit args */
  if (args)
    {
      strcat (arg_buf, " ");	/* 1 */
      strcat (arg_buf, args);
    }
  argv = buildargv (arg_buf);
  if (argv == NULL)
    error ("Insufficient memory available to allocate simulator arg list.");
  make_cleanup_freeargv (argv);

  init_callbacks ();
  gdbsim_desc = sim_open (SIM_OPEN_DEBUG, &gdb_callback, exec_bfd, argv);

  if (gdbsim_desc == 0)
    error ("unable to create simulator instance");

  push_target (&gdbsim_ops);
  target_fetch_registers (-1);
  printf_filtered ("Connected to the simulator.\n");
}