* Make-common.in (nrun.o): Add rule for.

	* nrun.c: New file.

1 files changed, 119 insertions, 0 deletions

diff --git a/sim/common/nrun.c b/sim/common/nrun.c
new file mode 100644
index 00000000000..17fdfcc4bac
--- /dev/null
+++ b/sim/common/nrun.c
@@ -0,0 +1,119 @@
+/* New version of run front end support for simulators.
+   Copyright (C) 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.  */
+
+#include "sim-main.h"
+
+#ifdef HAVE_ENVIRON
+extern char **environ;
+#endif
+
+static void usage PARAMS ((void));
+
+extern host_callback default_callback;
+
+static char *myname;
+
+int
+main (argc, argv)
+     int argc;
+     char **argv;
+{
+  char *name;
+  char **prog_argv = NULL;
+  enum sim_stop reason;
+  int sigrc;
+  SIM_DESC sd;
+
+  myname = argv[0] + strlen (argv[0]);
+  while (myname > argv[0] && myname[-1] != '/')
+    --myname;
+
+  sim_set_callbacks (NULL, &default_callback);
+  default_callback.init (&default_callback);
+
+  /* Create an instance of the simulator.  */
+  sd = sim_open (SIM_OPEN_STANDALONE, argv);
+  if (sd == 0)
+    exit (1);
+
+  /* Was there a program to run?  */
+  prog_argv = STATE_PROG_ARGV (sd);
+  if (prog_argv == NULL || *prog_argv == NULL)
+    usage ();
+
+  name = *prog_argv;
+
+  if (STATE_VERBOSE_P (sd))
+    printf ("%s %s\n", myname, name);
+
+  /* Load the program into the simulator.  */
+  if (sim_load (sd, name, NULL, 0) == SIM_RC_FAIL)
+    exit (1);
+
+  /* Prepare the program for execution.  */
+#ifdef HAVE_ENVIRON
+  sim_create_inferior (sd, prog_argv, environ);
+#else
+  sim_create_inferior (sd, prog_argv, NULL);
+#endif
+
+  /* Run the program.  */
+  sim_resume (sd, 0, 0);
+
+  /* Print any stats the simulator collected.  */
+  sim_info (sd, 0);
+
+  /* Find out why the program exited.  */
+  sim_stop_reason (sd, &reason, &sigrc);
+
+  /* Shutdown the simulator.  */
+  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;
+    }
+#endif
+
+  return sigrc;
+}
+
+static void
+usage ()
+{
+  fprintf (stderr, "Usage: %s [options] program [program args]\n", myname);
+  fprintf (stderr, "Run `%s --help' for full list of options.\n", myname);
+  exit (1);
+}