/* New version of run front end support for simulators.
- Copyright (C) 1997 Free Software Foundation, Inc.
+ Copyright (C) 1997-2016 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.
+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, write to the Free Software Foundation, Inc.,
-59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+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"
extern char **environ;
#endif
+#ifdef HAVE_UNISTD_H
+/* For chdir. */
+#include <unistd.h>
+#endif
+
static void usage (void);
extern host_callback default_callback;
-static char *myname;
+static const char *myname;
static SIM_DESC sd;
int
main (int argc, char **argv)
{
- char *name;
+ const char *name;
char **prog_argv = NULL;
- struct _bfd *prog_bfd;
+ struct bfd *prog_bfd;
enum sim_stop reason;
- int sigrc;
+ int sigrc = 0;
+ int single_step = 0;
RETSIGTYPE (*prev_sigint) ();
- myname = argv[0] + strlen (argv[0]);
- while (myname > argv[0] && myname[-1] != '/')
- --myname;
+ 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);
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);
{
prog_bfd = bfd_openr (name, 0);
if (prog_bfd == NULL)
- fprintf (stderr, "%s: can't open \"%s\": %s\n",
- myname, name, bfd_errmsg (bfd_get_error ()));
+ {
+ fprintf (stderr, "%s: can't open \"%s\": %s\n",
+ myname, name, bfd_errmsg (bfd_get_error ()));
+ exit (1);
+ }
+ 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))
sim_create_inferior (sd, prog_bfd, prog_argv, NULL);
#endif
- /* Run the program. */
- prev_sigint = signal (SIGINT, cntrl_c);
- sim_resume (sd, 0, 0);
- signal (SIGINT, prev_sigint);
+ /* 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);
+ }
- /* Print any stats the simulator collected. */
- sim_info (sd, 0);
+ /* 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))) ||
+ ((reason == sim_stopped) &&
+ (STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT)));
+ }
+ else
+ {
+ do
+ {
+#if defined (HAVE_SIGACTION) && defined (SA_RESTART)
+ 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
+ prev_sigint = signal (SIGINT, cntrl_c);
+#endif
+ sim_resume (sd, 0, sigrc);
+ signal (SIGINT, prev_sigint);
+ sim_stop_reason (sd, &reason, &sigrc);
- /* Find out why the program exited. */
- 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 signals in oe mode */
+ } while ((reason == sim_stopped) &&
+ (STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT));
+
+ }
+ /* Print any stats the simulator collected. */
+ if (STATE_VERBOSE_P (sd))
+ sim_info (sd, 0);
/* Shutdown the simulator. */
sim_close (sd, 0);
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);
+ fprintf (stderr, "program stopped with signal %d (%s).\n", sigrc,
+ strsignal (sigrc));
break;
case sim_exited:
break;
}
-#endif
return sigrc;
}
static void
-usage ()
+usage (void)
{
fprintf (stderr, "Usage: %s [options] program [program args]\n", myname);
fprintf (stderr, "Run `%s --help' for full list of options.\n", myname);
projects / deliverable / binutils-gdb.git / blobdiff