binutils-gdb/sim/common/nrun.c

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/* New version of run front end support for simulators.
Copyright (C) 1997-2019 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/>. */
/* Need to be before general includes, to pick up e.g. _GNU_SOURCE. */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <signal.h>
/* For strsignal. */
#ifdef HAVE_STRING_H
#include <string.h>
#else
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#endif
#include "sim-main.h"
#include "bfd.h"
#ifdef HAVE_ENVIRON
extern char **environ;
#endif
#ifdef HAVE_UNISTD_H
/* For chdir. */
#include <unistd.h>
#endif
static void usage (void);
extern host_callback default_callback;
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static const char *myname;
static SIM_DESC sd;
static RETSIGTYPE
cntrl_c (int sig)
{
if (! sim_stop (sd))
{
fprintf (stderr, "Quit!\n");
exit (1);
}
}
int
main (int argc, char **argv)
{
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const char *name;
char **prog_argv = NULL;
Index: arm/ChangeLog 2003-02-27 Andrew Cagney <cagney@redhat.com> * wrapper.c (sim_create_inferior, sim_open): Rename _bfd to bfd. Index: common/ChangeLog 2003-02-27 Andrew Cagney <cagney@redhat.com> * sim-utils.h (sim_analyze_program, sim_load_file): Rename _bfd to bfd. * sim-hload.c (sim_load), sim-base.h (sim_state_base): Ditto. * nrun.c (main): Ditto. Index: d10v/ChangeLog 2003-02-27 Andrew Cagney <cagney@redhat.com> * interp.c (sim_open, sim_create_inferior): Rename _bfd to bfd. Index: erc32/ChangeLog 2003-02-27 Andrew Cagney <cagney@redhat.com> * interf.c (sim_open, sim_create_inferior): Rename _bfd to bfd. Index: h8300/ChangeLog 2003-02-27 Andrew Cagney <cagney@redhat.com> * compile.c (sim_open, sim_create_inferior): Rename _bfd to bfd. Index: h8500/ChangeLog 2003-02-27 Andrew Cagney <cagney@redhat.com> * compile.c (sim_open, sim_create_inferior): Rename _bfd to bfd. Index: i960/ChangeLog 2003-02-27 Andrew Cagney <cagney@redhat.com> * sim-if.c (sim_open, sim_create_inferior): Rename _bfd to bfd. Index: m32r/ChangeLog 2003-02-27 Andrew Cagney <cagney@redhat.com> * sim-if.c (sim_open, sim_create_inferior): Rename _bfd to bfd. Index: m68hc11/ChangeLog 2003-02-27 Andrew Cagney <cagney@redhat.com> * interp.c (sim_prepare_for_program, sim_open) (sim_create_inferior): Rename _bfd to bfd. Index: mcore/ChangeLog 2003-02-27 Andrew Cagney <cagney@redhat.com> * interp.c (sim_open, sim_create_inferior): Rename _bfd to bfd. Index: mips/ChangeLog 2003-02-27 Andrew Cagney <cagney@redhat.com> * interp.c (sim_open): (sim_create_inferior): Index: mn10200/ChangeLog 2003-02-27 Andrew Cagney <cagney@redhat.com> * interp.c (sim_open, sim_create_inferior): Rename _bfd to bfd. Index: mn10300/ChangeLog 2003-02-27 Andrew Cagney <cagney@redhat.com> * interp.c (sim_open, sim_create_inferior, sim_open) (sim_create_inferior): Rename _bfd to bfd. Index: ppc/ChangeLog 2003-02-27 Andrew Cagney <cagney@redhat.com> * sim_calls.c (sim_open, sim_create_inferior): Rename _bfd to bfd. Index: sh/ChangeLog 2003-02-27 Andrew Cagney <cagney@redhat.com> * interp.c (init_dsp, sim_open, sim_create_inferior): Rename _bfd to bfd. Index: v850/ChangeLog 2003-02-27 Andrew Cagney <cagney@redhat.com> * interp.c (sim_open, sim_create_inferior): Rename _bfd to bfd. Index: z8k/ChangeLog 2003-02-27 Andrew Cagney <cagney@redhat.com> * iface.c (sim_open, sim_create_inferior): Rename _bfd to bfd.
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struct bfd *prog_bfd;
enum sim_stop reason;
int sigrc = 0;
int single_step = 0;
RETSIGTYPE (*prev_sigint) ();
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myname = lbasename (argv[0]);
/* INTERNAL: When MYNAME is `step', single step the simulator
instead of allowing it to run free. The sole purpose of this
HACK is to allow the sim_resume interface's step argument to be
tested without having to build/run gdb. */
if (strlen (myname) > 4 && strcmp (myname - 4, "step") == 0)
{
single_step = 1;
}
/* Create an instance of the simulator. */
default_callback.init (&default_callback);
sd = sim_open (SIM_OPEN_STANDALONE, &default_callback, NULL, argv);
if (sd == 0)
exit (1);
if (STATE_MAGIC (sd) != SIM_MAGIC_NUMBER)
{
fprintf (stderr, "Internal error - bad magic number in simulator struct\n");
abort ();
}
/* We can't set the endianness in the callback structure until
sim_config is called, which happens in sim_open. */
default_callback.target_endian
= (CURRENT_TARGET_BYTE_ORDER == BFD_ENDIAN_BIG
? BFD_ENDIAN_BIG : BFD_ENDIAN_LITTLE);
/* Was there a program to run? */
prog_argv = STATE_PROG_ARGV (sd);
prog_bfd = STATE_PROG_BFD (sd);
if (prog_argv == NULL || *prog_argv == NULL)
usage ();
name = *prog_argv;
/* For simulators that don't open prog during sim_open() */
if (prog_bfd == NULL)
{
prog_bfd = bfd_openr (name, 0);
if (prog_bfd == NULL)
{
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fprintf (stderr, "%s: can't open \"%s\": %s\n",
myname, name, bfd_errmsg (bfd_get_error ()));
exit (1);
}
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if (!bfd_check_format (prog_bfd, bfd_object))
{
fprintf (stderr, "%s: \"%s\" is not an object file: %s\n",
myname, name, bfd_errmsg (bfd_get_error ()));
exit (1);
}
}
if (STATE_VERBOSE_P (sd))
printf ("%s %s\n", myname, name);
/* Load the program into the simulator. */
if (sim_load (sd, name, prog_bfd, 0) == SIM_RC_FAIL)
exit (1);
/* Prepare the program for execution. */
#ifdef HAVE_ENVIRON
sim_create_inferior (sd, prog_bfd, prog_argv, environ);
#else
sim_create_inferior (sd, prog_bfd, prog_argv, NULL);
#endif
/* To accommodate relative file paths, chdir to sysroot now. We
mustn't do this until BFD has opened the program, else we wouldn't
find the executable if it has a relative file path. */
if (simulator_sysroot[0] != '\0' && chdir (simulator_sysroot) < 0)
{
fprintf (stderr, "%s: can't change directory to \"%s\"\n",
myname, simulator_sysroot);
exit (1);
}
/* Run/Step the program. */
if (single_step)
{
do
{
prev_sigint = signal (SIGINT, cntrl_c);
sim_resume (sd, 1/*step*/, 0);
signal (SIGINT, prev_sigint);
sim_stop_reason (sd, &reason, &sigrc);
if ((reason == sim_stopped) &&
(sigrc == sim_signal_to_host (sd, SIM_SIGINT)))
break; /* exit on control-C */
}
/* remain on breakpoint or signals in oe mode*/
while (((reason == sim_signalled) &&
(sigrc == sim_signal_to_host (sd, SIM_SIGTRAP))) ||
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((reason == sim_stopped) &&
(STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT)));
}
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else
{
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do
{
#if defined (HAVE_SIGACTION) && defined (SA_RESTART)
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struct sigaction sa, osa;
sa.sa_handler = cntrl_c;
sigemptyset (&sa.sa_mask);
sa.sa_flags = 0;
sigaction (SIGINT, &sa, &osa);
prev_sigint = osa.sa_handler;
#else
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prev_sigint = signal (SIGINT, cntrl_c);
#endif
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sim_resume (sd, 0, sigrc);
signal (SIGINT, prev_sigint);
sim_stop_reason (sd, &reason, &sigrc);
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if ((reason == sim_stopped) &&
(sigrc == sim_signal_to_host (sd, SIM_SIGINT)))
break; /* exit on control-C */
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/* remain on signals in oe mode */
} while ((reason == sim_stopped) &&
(STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT));
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}
/* Print any stats the simulator collected. */
if (STATE_VERBOSE_P (sd))
sim_info (sd, 0);
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/* Shutdown the simulator. */
sim_close (sd, 0);
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/* 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. */
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/* Why did we stop? */
switch (reason)
{
case sim_signalled:
case sim_stopped:
if (sigrc != 0)
fprintf (stderr, "program stopped with signal %d (%s).\n", sigrc,
strsignal (sigrc));
break;
case sim_exited:
break;
default:
fprintf (stderr, "program in undefined state (%d:%d)\n", reason, sigrc);
break;
}
return sigrc;
}
static void
usage (void)
{
fprintf (stderr, "Usage: %s [options] program [program args]\n", myname);
fprintf (stderr, "Run `%s --help' for full list of options.\n", myname);
exit (1);
}