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binutils-gdb/sim/common/run.c

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/* run front end support for all the simulators.
Copyright (C) 1992, 93-96, 1997 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 2, 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, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Steve Chamberlain sac@cygnus.com,
and others at Cygnus. */
#include "config.h"
#include "tconfig.h"
#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 "callback.h"
#include "remote-sim.h"
#include "ansidecl.h"
#include "../libiberty/alloca-conf.h"
static void usage 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 (*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);
/* FIXME: This is currently being rewritten to have each simulator
do all argv processing. */
#ifdef SIM_H8300 /* FIXME: quick hack */
while ((i = getopt (ac, av, "a:c:m:op:s:htv")) != EOF)
#else
while ((i = getopt (ac, av, "a:c:m:op:s:tv")) != EOF)
#endif
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 SIM_HAVE_ENVIRONMENT
#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. */
#ifdef SIM_H8300
case 'h':
set_h8300h (1);
break;
#endif
default:
usage ();
}
ac -= optind;
av += optind;
if (ac <= 0)
usage ();
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. */
#ifdef SIM_H8300 /* FIXME: Ugh. grep for SLEEP in compile.c */
if (sigrc == SIGILL)
abort ();
sigrc = 0;
#else
/* 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;
}
#endif
return sigrc;
}
static void
usage ()
{
fprintf (stderr, "Usage: %s [options] program [program args]\n", myname);
fprintf (stderr, "Options:\n");
fprintf (stderr, "-a args Pass `args' to simulator.\n");
#ifdef SIM_HAVE_SIMCACHE
fprintf (stderr, "-c size Set simulator cache size to `size'.\n");
#endif
#ifdef SIM_H8300
fprintf (stderr, "-h Executable is for h8/300h or h8/300s.\n");
#endif
fprintf (stderr, "-m size Set memory size of simulator, in bytes.\n");
#ifdef SIM_HAVE_ENVIRONMENT
fprintf (stderr, "-o Select operating (kernel) environment.\n");
#endif
#ifdef SIM_HAVE_PROFILE
fprintf (stderr, "-p freq Set profiling frequency.\n");
fprintf (stderr, "-s size Set profiling size.\n");
#endif
fprintf (stderr, "-t Perform instruction tracing.\n");
fprintf (stderr, " Note: Very few simulators support tracing.\n");
fprintf (stderr, "-v Verbose output.\n");
fprintf (stderr, "\n");
fprintf (stderr, "program args Arguments to pass to simulated program.\n");
fprintf (stderr, " Note: Very few simulators support this.\n");
exit (1);
}
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