1 /* run front end support for all the simulators.
2 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
3 2002, 2003, 2004, 2007 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
18 /* Steve Chamberlain sac@cygnus.com,
19 and others at Cygnus. */
46 #include "libiberty.h"
48 #include "gdb/callback.h"
49 #include "gdb/remote-sim.h"
53 static void usage PARAMS ((void));
57 extern host_callback default_callback;
63 #ifdef NEED_UI_LOOP_HOOK
64 /* Gdb foolery. This is only needed for gdb using a gui. */
65 int (*deprecated_ui_loop_hook) PARAMS ((int signo));
71 cntrl_c (int sig ATTRIBUTE_UNUSED)
75 fprintf (stderr, "Quit!\n");
85 RETSIGTYPE (*prev_sigint) ();
90 #ifdef SIM_HAVE_ENVIRONMENT
94 static char *no_args[4];
95 char **sim_argv = &no_args[0];
100 myname = av[0] + strlen (av[0]);
101 while (myname > av[0] && myname[-1] != '/')
104 /* The first element of sim_open's argv is the program name. */
106 #ifdef SIM_HAVE_BIENDIAN
108 no_args[2] = "set-later";
111 /* FIXME: This is currently being migrated into sim_open.
112 Simulators that use functions such as sim_size() still require
114 default_callback.init (&default_callback);
115 sim_set_callbacks (&default_callback);
117 #ifdef SIM_TARGET_SWITCHES
118 ac = sim_target_parse_command_line (ac, av);
121 /* FIXME: This is currently being rewritten to have each simulator
122 do all argv processing. */
124 while ((i = getopt (ac, av, "a:c:m:op:s:tv")) != EOF)
128 /* FIXME: Temporary hack. */
130 int len = strlen (av[0]) + strlen (optarg);
131 char *argbuf = (char *) alloca (len + 2 + 50);
132 sprintf (argbuf, "%s %s", av[0], optarg);
133 #ifdef SIM_HAVE_BIENDIAN
134 /* The desired endianness must be passed to sim_open.
135 The value for "set-later" is set when we know what it is.
136 -E support isn't yet part of the published interface. */
137 strcat (argbuf, " -E set-later");
139 sim_argv = buildargv (argbuf);
142 #ifdef SIM_HAVE_SIMCACHE
144 sim_set_simcache_size (atoi (optarg));
148 /* FIXME: Rename to sim_set_mem_size. */
149 sim_size (atoi (optarg));
151 #ifdef SIM_HAVE_ENVIRONMENT
153 /* Operating enironment where any signals are delivered to the
158 #ifdef SIM_HAVE_PROFILE
160 sim_set_profile (atoi (optarg));
163 sim_set_profile_size (atoi (optarg));
170 /* Things that are printed with -v are the kinds of things that
171 gcc -v prints. This is not meant to include detailed tracing
172 or debugging information, just summaries. */
174 /* sim_set_verbose (1); */
176 /* FIXME: Quick hack, to be replaced by more general facility. */
191 printf ("%s %s\n", myname, name);
194 abfd = bfd_openr (name, 0);
197 fprintf (stderr, "%s: can't open %s: %s\n",
198 myname, name, bfd_errmsg (bfd_get_error ()));
202 if (!bfd_check_format (abfd, bfd_object))
204 fprintf (stderr, "%s: can't load %s: %s\n",
205 myname, name, bfd_errmsg (bfd_get_error ()));
209 #ifdef SIM_HAVE_BIENDIAN
210 /* The endianness must be passed to sim_open because one may wish to
211 examine/set registers before calling sim_load [which is the other
212 place where one can determine endianness]. We previously passed the
213 endianness via global `target_byte_order' but that's not a clean
215 for (i = 1; sim_argv[i + 1] != NULL; ++i)
217 if (bfd_big_endian (abfd))
220 sim_argv[i] = "little";
223 /* Ensure that any run-time initialisation that needs to be
224 performed by the simulator can occur. */
225 sd = sim_open (SIM_OPEN_STANDALONE, &default_callback, abfd, sim_argv);
229 if (sim_load (sd, name, abfd, 0) == SIM_RC_FAIL)
232 if (sim_create_inferior (sd, abfd, prog_args, NULL) == SIM_RC_FAIL)
235 #ifdef SIM_HAVE_ENVIRONMENT
236 /* NOTE: An old simulator supporting the operating environment MUST
237 provide sim_set_trace() and not sim_trace(). That way
238 sim_stop_reason() can be used to determine any stop reason. */
244 prev_sigint = signal (SIGINT, cntrl_c);
245 sim_resume (sd, 0, sigrc);
246 signal (SIGINT, prev_sigint);
247 sim_stop_reason (sd, &reason, &sigrc);
249 while (operating_p && reason == sim_stopped && sigrc != SIGINT);
254 prev_sigint = signal (SIGINT, cntrl_c);
257 done = sim_trace (sd);
259 signal (SIGINT, prev_sigint);
260 sim_stop_reason (sd, &reason, &sigrc);
264 prev_sigint = signal (SIGINT, cntrl_c);
266 sim_resume (sd, 0, sigrc);
267 signal (SIGINT, prev_sigint);
268 sim_stop_reason (sd, &reason, &sigrc);
276 /* If reason is sim_exited, then sigrc holds the exit code which we want
277 to return. If reason is sim_stopped or sim_signalled, then sigrc holds
278 the signal that the simulator received; we want to return that to
281 /* Why did we stop? */
287 fprintf (stderr, "program stopped with signal %d.\n", sigrc);
294 case sim_polling: /* These indicate a serious problem. */
306 fprintf (stderr, "Usage: %s [options] program [program args]\n", myname);
307 fprintf (stderr, "Options:\n");
308 fprintf (stderr, "-a args Pass `args' to simulator.\n");
309 #ifdef SIM_HAVE_SIMCACHE
310 fprintf (stderr, "-c size Set simulator cache size to `size'.\n");
312 fprintf (stderr, "-m size Set memory size of simulator, in bytes.\n");
313 #ifdef SIM_HAVE_ENVIRONMENT
314 fprintf (stderr, "-o Select operating (kernel) environment.\n");
316 #ifdef SIM_HAVE_PROFILE
317 fprintf (stderr, "-p freq Set profiling frequency.\n");
318 fprintf (stderr, "-s size Set profiling size.\n");
320 fprintf (stderr, "-t Perform instruction tracing.\n");
321 fprintf (stderr, " Note: Very few simulators support tracing.\n");
322 fprintf (stderr, "-v Verbose output.\n");
323 fprintf (stderr, "\n");
324 fprintf (stderr, "program args Arguments to pass to simulated program.\n");
325 fprintf (stderr, " Note: Very few simulators support this.\n");
326 #ifdef SIM_TARGET_SWITCHES
327 fprintf (stderr, "\nTarget specific options:\n");
328 sim_target_display_usage ();