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, 2008, 2009, 2010, 2011
4 Free Software Foundation, Inc.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19 /* Steve Chamberlain sac@cygnus.com,
20 and others at Cygnus. */
47 #include "libiberty.h"
49 #include "gdb/callback.h"
50 #include "gdb/remote-sim.h"
55 static void usage PARAMS ((int help));
56 static void print_version PARAMS ((void));
60 extern host_callback default_callback;
66 #ifdef NEED_UI_LOOP_HOOK
67 /* Gdb foolery. This is only needed for gdb using a gui. */
68 int (*deprecated_ui_loop_hook) PARAMS ((int signo));
74 cntrl_c (int sig ATTRIBUTE_UNUSED)
78 fprintf (stderr, "Quit!\n");
88 RETSIGTYPE (*prev_sigint) ();
93 #ifdef SIM_HAVE_ENVIRONMENT
97 static char *no_args[4];
98 char **sim_argv = &no_args[0];
100 enum sim_stop reason;
103 myname = av[0] + strlen (av[0]);
104 while (myname > av[0] && myname[-1] != '/')
107 /* The first element of sim_open's argv is the program name. */
109 #ifdef SIM_HAVE_BIENDIAN
111 no_args[2] = "set-later";
114 /* FIXME: This is currently being migrated into sim_open.
115 Simulators that use functions such as sim_size() still require
117 default_callback.init (&default_callback);
118 sim_set_callbacks (&default_callback);
120 #ifdef SIM_TARGET_SWITCHES
121 ac = sim_target_parse_command_line (ac, av);
124 for (i = 1; av[i]; ++i)
126 if (strcmp (av[i], "--help") == 0)
130 else if (strcmp (av[i], "--version") == 0)
137 /* FIXME: This is currently being rewritten to have each simulator
138 do all argv processing. */
140 while ((i = getopt (ac, av, "a:c:m:op:s:tv")) != EOF)
144 /* FIXME: Temporary hack. */
146 int len = strlen (av[0]) + strlen (optarg);
147 char *argbuf = (char *) alloca (len + 2 + 50);
148 sprintf (argbuf, "%s %s", av[0], optarg);
149 #ifdef SIM_HAVE_BIENDIAN
150 /* The desired endianness must be passed to sim_open.
151 The value for "set-later" is set when we know what it is.
152 -E support isn't yet part of the published interface. */
153 strcat (argbuf, " -E set-later");
155 sim_argv = buildargv (argbuf);
158 #ifdef SIM_HAVE_SIMCACHE
160 sim_set_simcache_size (atoi (optarg));
164 /* FIXME: Rename to sim_set_mem_size. */
165 sim_size (atoi (optarg));
167 #ifdef SIM_HAVE_ENVIRONMENT
169 /* Operating enironment where any signals are delivered to the
174 #ifdef SIM_HAVE_PROFILE
176 sim_set_profile (atoi (optarg));
179 sim_set_profile_size (atoi (optarg));
186 /* Things that are printed with -v are the kinds of things that
187 gcc -v prints. This is not meant to include detailed tracing
188 or debugging information, just summaries. */
190 /* sim_set_verbose (1); */
192 /* FIXME: Quick hack, to be replaced by more general facility. */
207 printf ("%s %s\n", myname, name);
210 abfd = bfd_openr (name, 0);
213 fprintf (stderr, "%s: can't open %s: %s\n",
214 myname, name, bfd_errmsg (bfd_get_error ()));
218 if (!bfd_check_format (abfd, bfd_object))
220 fprintf (stderr, "%s: can't load %s: %s\n",
221 myname, name, bfd_errmsg (bfd_get_error ()));
225 #ifdef SIM_HAVE_BIENDIAN
226 /* The endianness must be passed to sim_open because one may wish to
227 examine/set registers before calling sim_load [which is the other
228 place where one can determine endianness]. We previously passed the
229 endianness via global `target_byte_order' but that's not a clean
231 for (i = 1; sim_argv[i + 1] != NULL; ++i)
233 if (bfd_big_endian (abfd))
236 sim_argv[i] = "little";
239 /* Ensure that any run-time initialisation that needs to be
240 performed by the simulator can occur. */
241 sd = sim_open (SIM_OPEN_STANDALONE, &default_callback, abfd, sim_argv);
245 if (sim_load (sd, name, abfd, 0) == SIM_RC_FAIL)
248 if (sim_create_inferior (sd, abfd, prog_args, NULL) == SIM_RC_FAIL)
251 #ifdef SIM_HAVE_ENVIRONMENT
252 /* NOTE: An old simulator supporting the operating environment MUST
253 provide sim_set_trace() and not sim_trace(). That way
254 sim_stop_reason() can be used to determine any stop reason. */
260 prev_sigint = signal (SIGINT, cntrl_c);
261 sim_resume (sd, 0, sigrc);
262 signal (SIGINT, prev_sigint);
263 sim_stop_reason (sd, &reason, &sigrc);
265 while (operating_p && reason == sim_stopped && sigrc != SIGINT);
270 prev_sigint = signal (SIGINT, cntrl_c);
273 done = sim_trace (sd);
275 signal (SIGINT, prev_sigint);
276 sim_stop_reason (sd, &reason, &sigrc);
280 prev_sigint = signal (SIGINT, cntrl_c);
282 sim_resume (sd, 0, sigrc);
283 signal (SIGINT, prev_sigint);
284 sim_stop_reason (sd, &reason, &sigrc);
292 /* If reason is sim_exited, then sigrc holds the exit code which we want
293 to return. If reason is sim_stopped or sim_signalled, then sigrc holds
294 the signal that the simulator received; we want to return that to
297 /* Why did we stop? */
303 fprintf (stderr, "program stopped with signal %d.\n", sigrc);
310 case sim_polling: /* These indicate a serious problem. */
322 FILE *stream = help ? stdout : stderr;
324 fprintf (stream, "Usage: %s [options] program [program args]\n", myname);
325 fprintf (stream, "Options:\n");
326 fprintf (stream, "-a args Pass `args' to simulator.\n");
327 #ifdef SIM_HAVE_SIMCACHE
328 fprintf (stream, "-c size Set simulator cache size to `size'.\n");
330 fprintf (stream, "-m size Set memory size of simulator, in bytes.\n");
331 #ifdef SIM_HAVE_ENVIRONMENT
332 fprintf (stream, "-o Select operating (kernel) environment.\n");
334 #ifdef SIM_HAVE_PROFILE
335 fprintf (stream, "-p freq Set profiling frequency.\n");
336 fprintf (stream, "-s size Set profiling size.\n");
338 fprintf (stream, "-t Perform instruction tracing.\n");
339 fprintf (stream, " Note: Very few simulators support tracing.\n");
340 fprintf (stream, "-v Verbose output.\n");
341 fprintf (stream, "\n");
342 fprintf (stream, "program args Arguments to pass to simulated program.\n");
343 fprintf (stream, " Note: Very few simulators support this.\n");
344 #ifdef SIM_TARGET_SWITCHES
345 fprintf (stream, "\nTarget specific options:\n");
346 sim_target_display_usage (help);
349 if (help && REPORT_BUGS_TO[0])
350 printf ("Report bugs to %s\n", REPORT_BUGS_TO);
358 printf ("GNU simulator %s%s\n", PKGVERSION, version);