1 /* run front end support for all the simulators.
2 Copyright (C) 1992-2015 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 /* Steve Chamberlain sac@cygnus.com,
18 and others at Cygnus. */
45 #include "libiberty.h"
47 #include "gdb/callback.h"
48 #include "gdb/remote-sim.h"
53 #ifdef SIM_USE_DEPRECATED_RUN_FRONTEND
54 # warning "This sim is using the deprecated run.c; please migrate to nrun.c."
56 # error "Please do not create new sim ports using run.c; use nrun.c instead." \
57 "New submissions using run.c will not be accepted."
60 static void usage (int help);
61 static void print_version (void);
65 extern host_callback default_callback;
71 #ifdef NEED_UI_LOOP_HOOK
72 /* Gdb foolery. This is only needed for gdb using a gui. */
73 int (*deprecated_ui_loop_hook) (int signo);
79 cntrl_c (int sig ATTRIBUTE_UNUSED)
83 fprintf (stderr, "Quit!\n");
93 RETSIGTYPE (*prev_sigint) ();
98 #ifdef SIM_HAVE_ENVIRONMENT
102 static char *no_args[4];
103 char **sim_argv = &no_args[0];
105 enum sim_stop reason;
108 myname = av[0] + strlen (av[0]);
109 while (myname > av[0] && myname[-1] != '/')
112 /* The first element of sim_open's argv is the program name. */
114 #ifdef SIM_HAVE_BIENDIAN
116 no_args[2] = "set-later";
119 /* FIXME: This is currently being migrated into sim_open.
120 Simulators that use functions such as sim_size() still require
122 default_callback.init (&default_callback);
123 sim_set_callbacks (&default_callback);
125 #ifdef SIM_TARGET_SWITCHES
126 ac = sim_target_parse_command_line (ac, av);
129 for (i = 1; av[i]; ++i)
131 if (strcmp (av[i], "--help") == 0)
135 else if (strcmp (av[i], "--version") == 0)
142 /* FIXME: This is currently being rewritten to have each simulator
143 do all argv processing. */
145 while ((i = getopt (ac, av, "a:c:m:op:s:tv")) != EOF)
149 /* FIXME: Temporary hack. */
151 int len = strlen (av[0]) + strlen (optarg);
152 char *argbuf = (char *) alloca (len + 2 + 50);
153 sprintf (argbuf, "%s %s", av[0], optarg);
154 #ifdef SIM_HAVE_BIENDIAN
155 /* The desired endianness must be passed to sim_open.
156 The value for "set-later" is set when we know what it is.
157 -E support isn't yet part of the published interface. */
158 strcat (argbuf, " -E set-later");
160 sim_argv = buildargv (argbuf);
163 #ifdef SIM_HAVE_SIMCACHE
165 sim_set_simcache_size (atoi (optarg));
169 /* FIXME: Rename to sim_set_mem_size. */
170 sim_size (atoi (optarg));
172 #ifdef SIM_HAVE_ENVIRONMENT
174 /* Operating enironment where any signals are delivered to the
179 #ifdef SIM_HAVE_PROFILE
181 sim_set_profile (atoi (optarg));
184 sim_set_profile_size (atoi (optarg));
191 /* Things that are printed with -v are the kinds of things that
192 gcc -v prints. This is not meant to include detailed tracing
193 or debugging information, just summaries. */
195 /* sim_set_verbose (1); */
197 /* FIXME: Quick hack, to be replaced by more general facility. */
212 printf ("%s %s\n", myname, name);
215 abfd = bfd_openr (name, 0);
218 fprintf (stderr, "%s: can't open %s: %s\n",
219 myname, name, bfd_errmsg (bfd_get_error ()));
223 if (!bfd_check_format (abfd, bfd_object))
225 fprintf (stderr, "%s: can't load %s: %s\n",
226 myname, name, bfd_errmsg (bfd_get_error ()));
230 #ifdef SIM_HAVE_BIENDIAN
231 /* The endianness must be passed to sim_open because one may wish to
232 examine/set registers before calling sim_load [which is the other
233 place where one can determine endianness]. We previously passed the
234 endianness via global `target_byte_order' but that's not a clean
236 for (i = 1; sim_argv[i + 1] != NULL; ++i)
238 if (bfd_big_endian (abfd))
241 sim_argv[i] = "little";
244 /* Ensure that any run-time initialisation that needs to be
245 performed by the simulator can occur. */
246 sd = sim_open (SIM_OPEN_STANDALONE, &default_callback, abfd, sim_argv);
250 if (sim_load (sd, name, abfd, 0) == SIM_RC_FAIL)
253 if (sim_create_inferior (sd, abfd, prog_args, NULL) == SIM_RC_FAIL)
256 #ifdef SIM_HAVE_ENVIRONMENT
257 /* NOTE: An old simulator supporting the operating environment MUST
258 provide sim_set_trace() and not sim_trace(). That way
259 sim_stop_reason() can be used to determine any stop reason. */
265 prev_sigint = signal (SIGINT, cntrl_c);
266 sim_resume (sd, 0, sigrc);
267 signal (SIGINT, prev_sigint);
268 sim_stop_reason (sd, &reason, &sigrc);
270 while (operating_p && reason == sim_stopped && sigrc != SIGINT);
275 prev_sigint = signal (SIGINT, cntrl_c);
278 done = sim_trace (sd);
280 signal (SIGINT, prev_sigint);
281 sim_stop_reason (sd, &reason, &sigrc);
285 prev_sigint = signal (SIGINT, cntrl_c);
287 sim_resume (sd, 0, sigrc);
288 signal (SIGINT, prev_sigint);
289 sim_stop_reason (sd, &reason, &sigrc);
297 /* If reason is sim_exited, then sigrc holds the exit code which we want
298 to return. If reason is sim_stopped or sim_signalled, then sigrc holds
299 the signal that the simulator received; we want to return that to
302 /* Why did we stop? */
308 fprintf (stderr, "program stopped with signal %d.\n", sigrc);
315 case sim_polling: /* These indicate a serious problem. */
327 FILE *stream = help ? stdout : stderr;
329 fprintf (stream, "Usage: %s [options] program [program args]\n", myname);
330 fprintf (stream, "Options:\n");
331 fprintf (stream, "-a args Pass `args' to simulator.\n");
332 #ifdef SIM_HAVE_SIMCACHE
333 fprintf (stream, "-c size Set simulator cache size to `size'.\n");
335 fprintf (stream, "-m size Set memory size of simulator, in bytes.\n");
336 #ifdef SIM_HAVE_ENVIRONMENT
337 fprintf (stream, "-o Select operating (kernel) environment.\n");
339 #ifdef SIM_HAVE_PROFILE
340 fprintf (stream, "-p freq Set profiling frequency.\n");
341 fprintf (stream, "-s size Set profiling size.\n");
343 fprintf (stream, "-t Perform instruction tracing.\n");
344 fprintf (stream, " Note: Very few simulators support tracing.\n");
345 fprintf (stream, "-v Verbose output.\n");
346 fprintf (stream, "\n");
347 fprintf (stream, "program args Arguments to pass to simulated program.\n");
348 fprintf (stream, " Note: Very few simulators support this.\n");
349 #ifdef SIM_TARGET_SWITCHES
350 fprintf (stream, "\nTarget specific options:\n");
351 sim_target_display_usage (help);
354 if (help && REPORT_BUGS_TO[0])
355 printf ("Report bugs to %s\n", REPORT_BUGS_TO);
363 printf ("GNU simulator %s%s\n", PKGVERSION, version);