1 /* run front end support for all the simulators.
2 Copyright (C) 1992-2014 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 static void usage (int help);
54 static void print_version (void);
58 extern host_callback default_callback;
64 #ifdef NEED_UI_LOOP_HOOK
65 /* Gdb foolery. This is only needed for gdb using a gui. */
66 int (*deprecated_ui_loop_hook) (int signo);
72 cntrl_c (int sig ATTRIBUTE_UNUSED)
76 fprintf (stderr, "Quit!\n");
86 RETSIGTYPE (*prev_sigint) ();
91 #ifdef SIM_HAVE_ENVIRONMENT
95 static char *no_args[4];
96 char **sim_argv = &no_args[0];
101 myname = av[0] + strlen (av[0]);
102 while (myname > av[0] && myname[-1] != '/')
105 /* The first element of sim_open's argv is the program name. */
107 #ifdef SIM_HAVE_BIENDIAN
109 no_args[2] = "set-later";
112 /* FIXME: This is currently being migrated into sim_open.
113 Simulators that use functions such as sim_size() still require
115 default_callback.init (&default_callback);
116 sim_set_callbacks (&default_callback);
118 #ifdef SIM_TARGET_SWITCHES
119 ac = sim_target_parse_command_line (ac, av);
122 for (i = 1; av[i]; ++i)
124 if (strcmp (av[i], "--help") == 0)
128 else if (strcmp (av[i], "--version") == 0)
135 /* FIXME: This is currently being rewritten to have each simulator
136 do all argv processing. */
138 while ((i = getopt (ac, av, "a:c:m:op:s:tv")) != EOF)
142 /* FIXME: Temporary hack. */
144 int len = strlen (av[0]) + strlen (optarg);
145 char *argbuf = (char *) alloca (len + 2 + 50);
146 sprintf (argbuf, "%s %s", av[0], optarg);
147 #ifdef SIM_HAVE_BIENDIAN
148 /* The desired endianness must be passed to sim_open.
149 The value for "set-later" is set when we know what it is.
150 -E support isn't yet part of the published interface. */
151 strcat (argbuf, " -E set-later");
153 sim_argv = buildargv (argbuf);
156 #ifdef SIM_HAVE_SIMCACHE
158 sim_set_simcache_size (atoi (optarg));
162 /* FIXME: Rename to sim_set_mem_size. */
163 sim_size (atoi (optarg));
165 #ifdef SIM_HAVE_ENVIRONMENT
167 /* Operating enironment where any signals are delivered to the
172 #ifdef SIM_HAVE_PROFILE
174 sim_set_profile (atoi (optarg));
177 sim_set_profile_size (atoi (optarg));
184 /* Things that are printed with -v are the kinds of things that
185 gcc -v prints. This is not meant to include detailed tracing
186 or debugging information, just summaries. */
188 /* sim_set_verbose (1); */
190 /* FIXME: Quick hack, to be replaced by more general facility. */
205 printf ("%s %s\n", myname, name);
208 abfd = bfd_openr (name, 0);
211 fprintf (stderr, "%s: can't open %s: %s\n",
212 myname, name, bfd_errmsg (bfd_get_error ()));
216 if (!bfd_check_format (abfd, bfd_object))
218 fprintf (stderr, "%s: can't load %s: %s\n",
219 myname, name, bfd_errmsg (bfd_get_error ()));
223 #ifdef SIM_HAVE_BIENDIAN
224 /* The endianness must be passed to sim_open because one may wish to
225 examine/set registers before calling sim_load [which is the other
226 place where one can determine endianness]. We previously passed the
227 endianness via global `target_byte_order' but that's not a clean
229 for (i = 1; sim_argv[i + 1] != NULL; ++i)
231 if (bfd_big_endian (abfd))
234 sim_argv[i] = "little";
237 /* Ensure that any run-time initialisation that needs to be
238 performed by the simulator can occur. */
239 sd = sim_open (SIM_OPEN_STANDALONE, &default_callback, abfd, sim_argv);
243 if (sim_load (sd, name, abfd, 0) == SIM_RC_FAIL)
246 if (sim_create_inferior (sd, abfd, prog_args, NULL) == SIM_RC_FAIL)
249 #ifdef SIM_HAVE_ENVIRONMENT
250 /* NOTE: An old simulator supporting the operating environment MUST
251 provide sim_set_trace() and not sim_trace(). That way
252 sim_stop_reason() can be used to determine any stop reason. */
258 prev_sigint = signal (SIGINT, cntrl_c);
259 sim_resume (sd, 0, sigrc);
260 signal (SIGINT, prev_sigint);
261 sim_stop_reason (sd, &reason, &sigrc);
263 while (operating_p && reason == sim_stopped && sigrc != SIGINT);
268 prev_sigint = signal (SIGINT, cntrl_c);
271 done = sim_trace (sd);
273 signal (SIGINT, prev_sigint);
274 sim_stop_reason (sd, &reason, &sigrc);
278 prev_sigint = signal (SIGINT, cntrl_c);
280 sim_resume (sd, 0, sigrc);
281 signal (SIGINT, prev_sigint);
282 sim_stop_reason (sd, &reason, &sigrc);
290 /* If reason is sim_exited, then sigrc holds the exit code which we want
291 to return. If reason is sim_stopped or sim_signalled, then sigrc holds
292 the signal that the simulator received; we want to return that to
295 /* Why did we stop? */
301 fprintf (stderr, "program stopped with signal %d.\n", sigrc);
308 case sim_polling: /* These indicate a serious problem. */
320 FILE *stream = help ? stdout : stderr;
322 fprintf (stream, "Usage: %s [options] program [program args]\n", myname);
323 fprintf (stream, "Options:\n");
324 fprintf (stream, "-a args Pass `args' to simulator.\n");
325 #ifdef SIM_HAVE_SIMCACHE
326 fprintf (stream, "-c size Set simulator cache size to `size'.\n");
328 fprintf (stream, "-m size Set memory size of simulator, in bytes.\n");
329 #ifdef SIM_HAVE_ENVIRONMENT
330 fprintf (stream, "-o Select operating (kernel) environment.\n");
332 #ifdef SIM_HAVE_PROFILE
333 fprintf (stream, "-p freq Set profiling frequency.\n");
334 fprintf (stream, "-s size Set profiling size.\n");
336 fprintf (stream, "-t Perform instruction tracing.\n");
337 fprintf (stream, " Note: Very few simulators support tracing.\n");
338 fprintf (stream, "-v Verbose output.\n");
339 fprintf (stream, "\n");
340 fprintf (stream, "program args Arguments to pass to simulated program.\n");
341 fprintf (stream, " Note: Very few simulators support this.\n");
342 #ifdef SIM_TARGET_SWITCHES
343 fprintf (stream, "\nTarget specific options:\n");
344 sim_target_display_usage (help);
347 if (help && REPORT_BUGS_TO[0])
348 printf ("Report bugs to %s\n", REPORT_BUGS_TO);
356 printf ("GNU simulator %s%s\n", PKGVERSION, version);