binutils-gdb/sim/common/run.c

360 lines
8.8 KiB
C

/* run front end support for all the simulators.
Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
2002, 2003, 2004, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Steve Chamberlain sac@cygnus.com,
and others at Cygnus. */
#ifdef HAVE_CONFIG_H
#include "cconfig.h"
#include "tconfig.h"
#endif
#include <signal.h>
#include <stdio.h>
#ifdef __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#else
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#endif
#include "libiberty.h"
#include "bfd.h"
#include "gdb/callback.h"
#include "gdb/remote-sim.h"
#include "ansidecl.h"
#include "run-sim.h"
#include "version.h"
static void usage PARAMS ((int help));
static void print_version PARAMS ((void));
extern int optind;
extern char *optarg;
extern host_callback default_callback;
static char *myname;
extern int getopt ();
#ifdef NEED_UI_LOOP_HOOK
/* Gdb foolery. This is only needed for gdb using a gui. */
int (*deprecated_ui_loop_hook) PARAMS ((int signo));
#endif
static SIM_DESC sd;
static RETSIGTYPE
cntrl_c (int sig ATTRIBUTE_UNUSED)
{
if (! sim_stop (sd))
{
fprintf (stderr, "Quit!\n");
exit (1);
}
}
int
main (ac, av)
int ac;
char **av;
{
RETSIGTYPE (*prev_sigint) ();
bfd *abfd;
int i;
int verbose = 0;
int trace = 0;
#ifdef SIM_HAVE_ENVIRONMENT
int operating_p = 0;
#endif
char *name;
static char *no_args[4];
char **sim_argv = &no_args[0];
char **prog_args;
enum sim_stop reason;
int sigrc;
myname = av[0] + strlen (av[0]);
while (myname > av[0] && myname[-1] != '/')
--myname;
/* The first element of sim_open's argv is the program name. */
no_args[0] = av[0];
#ifdef SIM_HAVE_BIENDIAN
no_args[1] = "-E";
no_args[2] = "set-later";
#endif
/* FIXME: This is currently being migrated into sim_open.
Simulators that use functions such as sim_size() still require
this. */
default_callback.init (&default_callback);
sim_set_callbacks (&default_callback);
#ifdef SIM_TARGET_SWITCHES
ac = sim_target_parse_command_line (ac, av);
#endif
for (i = 1; av[i]; ++i)
{
if (strcmp (av[i], "--help") == 0)
{
usage (1);
}
else if (strcmp (av[i], "--version") == 0)
{
print_version ();
return 0;
}
}
/* FIXME: This is currently being rewritten to have each simulator
do all argv processing. */
while ((i = getopt (ac, av, "a:c:m:op:s:tv")) != EOF)
switch (i)
{
case 'a':
/* FIXME: Temporary hack. */
{
int len = strlen (av[0]) + strlen (optarg);
char *argbuf = (char *) alloca (len + 2 + 50);
sprintf (argbuf, "%s %s", av[0], optarg);
#ifdef SIM_HAVE_BIENDIAN
/* The desired endianness must be passed to sim_open.
The value for "set-later" is set when we know what it is.
-E support isn't yet part of the published interface. */
strcat (argbuf, " -E set-later");
#endif
sim_argv = buildargv (argbuf);
}
break;
#ifdef SIM_HAVE_SIMCACHE
case 'c':
sim_set_simcache_size (atoi (optarg));
break;
#endif
case 'm':
/* FIXME: Rename to sim_set_mem_size. */
sim_size (atoi (optarg));
break;
#ifdef SIM_HAVE_ENVIRONMENT
case 'o':
/* Operating enironment where any signals are delivered to the
target. */
operating_p = 1;
break;
#endif
#ifdef SIM_HAVE_PROFILE
case 'p':
sim_set_profile (atoi (optarg));
break;
case 's':
sim_set_profile_size (atoi (optarg));
break;
#endif
case 't':
trace = 1;
break;
case 'v':
/* Things that are printed with -v are the kinds of things that
gcc -v prints. This is not meant to include detailed tracing
or debugging information, just summaries. */
verbose = 1;
/* sim_set_verbose (1); */
break;
/* FIXME: Quick hack, to be replaced by more general facility. */
default:
usage (0);
}
ac -= optind;
av += optind;
if (ac <= 0)
usage (0);
name = *av;
prog_args = av;
if (verbose)
{
printf ("%s %s\n", myname, name);
}
abfd = bfd_openr (name, 0);
if (!abfd)
{
fprintf (stderr, "%s: can't open %s: %s\n",
myname, name, bfd_errmsg (bfd_get_error ()));
exit (1);
}
if (!bfd_check_format (abfd, bfd_object))
{
fprintf (stderr, "%s: can't load %s: %s\n",
myname, name, bfd_errmsg (bfd_get_error ()));
exit (1);
}
#ifdef SIM_HAVE_BIENDIAN
/* The endianness must be passed to sim_open because one may wish to
examine/set registers before calling sim_load [which is the other
place where one can determine endianness]. We previously passed the
endianness via global `target_byte_order' but that's not a clean
interface. */
for (i = 1; sim_argv[i + 1] != NULL; ++i)
continue;
if (bfd_big_endian (abfd))
sim_argv[i] = "big";
else
sim_argv[i] = "little";
#endif
/* Ensure that any run-time initialisation that needs to be
performed by the simulator can occur. */
sd = sim_open (SIM_OPEN_STANDALONE, &default_callback, abfd, sim_argv);
if (sd == 0)
exit (1);
if (sim_load (sd, name, abfd, 0) == SIM_RC_FAIL)
exit (1);
if (sim_create_inferior (sd, abfd, prog_args, NULL) == SIM_RC_FAIL)
exit (1);
#ifdef SIM_HAVE_ENVIRONMENT
/* NOTE: An old simulator supporting the operating environment MUST
provide sim_set_trace() and not sim_trace(). That way
sim_stop_reason() can be used to determine any stop reason. */
if (trace)
sim_set_trace ();
sigrc = 0;
do
{
prev_sigint = signal (SIGINT, cntrl_c);
sim_resume (sd, 0, sigrc);
signal (SIGINT, prev_sigint);
sim_stop_reason (sd, &reason, &sigrc);
}
while (operating_p && reason == sim_stopped && sigrc != SIGINT);
#else
if (trace)
{
int done = 0;
prev_sigint = signal (SIGINT, cntrl_c);
while (!done)
{
done = sim_trace (sd);
}
signal (SIGINT, prev_sigint);
sim_stop_reason (sd, &reason, &sigrc);
}
else
{
prev_sigint = signal (SIGINT, cntrl_c);
sigrc = 0;
sim_resume (sd, 0, sigrc);
signal (SIGINT, prev_sigint);
sim_stop_reason (sd, &reason, &sigrc);
}
#endif
if (verbose)
sim_info (sd, 0);
sim_close (sd, 0);
/* If reason is sim_exited, then sigrc holds the exit code which we want
to return. If reason is sim_stopped or sim_signalled, then sigrc holds
the signal that the simulator received; we want to return that to
indicate failure. */
/* Why did we stop? */
switch (reason)
{
case sim_signalled:
case sim_stopped:
if (sigrc != 0)
fprintf (stderr, "program stopped with signal %d.\n", sigrc);
break;
case sim_exited:
break;
case sim_running:
case sim_polling: /* These indicate a serious problem. */
abort ();
break;
}
return sigrc;
}
static void
usage (int help)
{
FILE *stream = help ? stdout : stderr;
fprintf (stream, "Usage: %s [options] program [program args]\n", myname);
fprintf (stream, "Options:\n");
fprintf (stream, "-a args Pass `args' to simulator.\n");
#ifdef SIM_HAVE_SIMCACHE
fprintf (stream, "-c size Set simulator cache size to `size'.\n");
#endif
fprintf (stream, "-m size Set memory size of simulator, in bytes.\n");
#ifdef SIM_HAVE_ENVIRONMENT
fprintf (stream, "-o Select operating (kernel) environment.\n");
#endif
#ifdef SIM_HAVE_PROFILE
fprintf (stream, "-p freq Set profiling frequency.\n");
fprintf (stream, "-s size Set profiling size.\n");
#endif
fprintf (stream, "-t Perform instruction tracing.\n");
fprintf (stream, " Note: Very few simulators support tracing.\n");
fprintf (stream, "-v Verbose output.\n");
fprintf (stream, "\n");
fprintf (stream, "program args Arguments to pass to simulated program.\n");
fprintf (stream, " Note: Very few simulators support this.\n");
#ifdef SIM_TARGET_SWITCHES
fprintf (stream, "\nTarget specific options:\n");
sim_target_display_usage (help);
#endif
if (help && REPORT_BUGS_TO[0])
printf ("Report bugs to %s\n", REPORT_BUGS_TO);
exit (help ? 0 : 1);
}
static void
print_version ()
{
printf ("GNU simulator %s%s\n", PKGVERSION, version);
}