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. */
44 #include "libiberty.h"
46 #include "gdb/callback.h"
47 #include "gdb/remote-sim.h"
52 #ifdef SIM_USE_DEPRECATED_RUN_FRONTEND
53 # warning "This sim is using the deprecated run.c; please migrate to nrun.c."
55 # error "Please do not create new sim ports using run.c; use nrun.c instead." \
56 "New submissions using run.c will not be accepted."
59 static void usage (int help);
60 static void print_version (void);
64 extern host_callback default_callback;
70 #ifdef NEED_UI_LOOP_HOOK
71 /* Gdb foolery. This is only needed for gdb using a gui. */
72 int (*deprecated_ui_loop_hook) (int signo);
78 cntrl_c (int sig ATTRIBUTE_UNUSED)
82 fprintf (stderr, "Quit!\n");
92 RETSIGTYPE (*prev_sigint) ();
97 #ifdef SIM_HAVE_ENVIRONMENT
101 static char *no_args[4];
102 char **sim_argv = &no_args[0];
104 enum sim_stop reason;
107 myname = av[0] + strlen (av[0]);
108 while (myname > av[0] && myname[-1] != '/')
111 /* The first element of sim_open's argv is the program name. */
113 #ifdef SIM_HAVE_BIENDIAN
115 no_args[2] = "set-later";
118 /* FIXME: This is currently being migrated into sim_open.
119 Simulators that use functions such as sim_size() still require
121 default_callback.init (&default_callback);
122 sim_set_callbacks (&default_callback);
124 #ifdef SIM_TARGET_SWITCHES
125 ac = sim_target_parse_command_line (ac, av);
128 for (i = 1; av[i]; ++i)
130 if (strcmp (av[i], "--help") == 0)
134 else if (strcmp (av[i], "--version") == 0)
141 /* FIXME: This is currently being rewritten to have each simulator
142 do all argv processing. */
144 while ((i = getopt (ac, av, "a:c:m:op:s:tv")) != EOF)
148 /* FIXME: Temporary hack. */
150 int len = strlen (av[0]) + strlen (optarg);
151 char *argbuf = (char *) alloca (len + 2 + 50);
152 sprintf (argbuf, "%s %s", av[0], optarg);
153 #ifdef SIM_HAVE_BIENDIAN
154 /* The desired endianness must be passed to sim_open.
155 The value for "set-later" is set when we know what it is.
156 -E support isn't yet part of the published interface. */
157 strcat (argbuf, " -E set-later");
159 sim_argv = buildargv (argbuf);
162 #ifdef SIM_HAVE_SIMCACHE
164 sim_set_simcache_size (atoi (optarg));
168 /* FIXME: Rename to sim_set_mem_size. */
169 sim_size (atoi (optarg));
171 #ifdef SIM_HAVE_ENVIRONMENT
173 /* Operating enironment where any signals are delivered to the
178 #ifdef SIM_HAVE_PROFILE
180 sim_set_profile (atoi (optarg));
183 sim_set_profile_size (atoi (optarg));
190 /* Things that are printed with -v are the kinds of things that
191 gcc -v prints. This is not meant to include detailed tracing
192 or debugging information, just summaries. */
194 /* sim_set_verbose (1); */
196 /* FIXME: Quick hack, to be replaced by more general facility. */
211 printf ("%s %s\n", myname, name);
214 abfd = bfd_openr (name, 0);
217 fprintf (stderr, "%s: can't open %s: %s\n",
218 myname, name, bfd_errmsg (bfd_get_error ()));
222 if (!bfd_check_format (abfd, bfd_object))
224 fprintf (stderr, "%s: can't load %s: %s\n",
225 myname, name, bfd_errmsg (bfd_get_error ()));
229 #ifdef SIM_HAVE_BIENDIAN
230 /* The endianness must be passed to sim_open because one may wish to
231 examine/set registers before calling sim_load [which is the other
232 place where one can determine endianness]. We previously passed the
233 endianness via global `target_byte_order' but that's not a clean
235 for (i = 1; sim_argv[i + 1] != NULL; ++i)
237 if (bfd_big_endian (abfd))
240 sim_argv[i] = "little";
243 /* Ensure that any run-time initialisation that needs to be
244 performed by the simulator can occur. */
245 sd = sim_open (SIM_OPEN_STANDALONE, &default_callback, abfd, sim_argv);
249 if (sim_load (sd, name, abfd, 0) == SIM_RC_FAIL)
252 if (sim_create_inferior (sd, abfd, prog_args, NULL) == SIM_RC_FAIL)
255 #ifdef SIM_HAVE_ENVIRONMENT
256 /* NOTE: An old simulator supporting the operating environment MUST
257 provide sim_set_trace() and not sim_trace(). That way
258 sim_stop_reason() can be used to determine any stop reason. */
264 prev_sigint = signal (SIGINT, cntrl_c);
265 sim_resume (sd, 0, sigrc);
266 signal (SIGINT, prev_sigint);
267 sim_stop_reason (sd, &reason, &sigrc);
269 while (operating_p && reason == sim_stopped && sigrc != SIGINT);
274 prev_sigint = signal (SIGINT, cntrl_c);
277 done = sim_trace (sd);
279 signal (SIGINT, prev_sigint);
280 sim_stop_reason (sd, &reason, &sigrc);
284 prev_sigint = signal (SIGINT, cntrl_c);
286 sim_resume (sd, 0, sigrc);
287 signal (SIGINT, prev_sigint);
288 sim_stop_reason (sd, &reason, &sigrc);
296 /* If reason is sim_exited, then sigrc holds the exit code which we want
297 to return. If reason is sim_stopped or sim_signalled, then sigrc holds
298 the signal that the simulator received; we want to return that to
301 /* Why did we stop? */
307 fprintf (stderr, "program stopped with signal %d.\n", sigrc);
314 case sim_polling: /* These indicate a serious problem. */
326 FILE *stream = help ? stdout : stderr;
328 fprintf (stream, "Usage: %s [options] program [program args]\n", myname);
329 fprintf (stream, "Options:\n");
330 fprintf (stream, "-a args Pass `args' to simulator.\n");
331 #ifdef SIM_HAVE_SIMCACHE
332 fprintf (stream, "-c size Set simulator cache size to `size'.\n");
334 fprintf (stream, "-m size Set memory size of simulator, in bytes.\n");
335 #ifdef SIM_HAVE_ENVIRONMENT
336 fprintf (stream, "-o Select operating (kernel) environment.\n");
338 #ifdef SIM_HAVE_PROFILE
339 fprintf (stream, "-p freq Set profiling frequency.\n");
340 fprintf (stream, "-s size Set profiling size.\n");
342 fprintf (stream, "-t Perform instruction tracing.\n");
343 fprintf (stream, " Note: Very few simulators support tracing.\n");
344 fprintf (stream, "-v Verbose output.\n");
345 fprintf (stream, "\n");
346 fprintf (stream, "program args Arguments to pass to simulated program.\n");
347 fprintf (stream, " Note: Very few simulators support this.\n");
348 #ifdef SIM_TARGET_SWITCHES
349 fprintf (stream, "\nTarget specific options:\n");
350 sim_target_display_usage (help);
353 if (help && REPORT_BUGS_TO[0])
354 printf ("Report bugs to %s\n", REPORT_BUGS_TO);
362 printf ("GNU simulator %s%s\n", PKGVERSION, version);