/* New version of run front end support for simulators.
- Copyright (C) 1997, 2004, 2007-2012 Free Software Foundation, Inc.
+ Copyright (C) 1997-2021 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
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. */
+#include "defs.h"
+
#include <signal.h>
+#include <stdlib.h>
+/* For strsignal. */
+#include <string.h>
+
#include "sim-main.h"
+#include "sim-signal.h"
+#include "sim/callback.h"
#include "bfd.h"
+#include "environ.h"
-#ifdef HAVE_ENVIRON
-extern char **environ;
+#ifndef HAVE_STRSIGNAL
+/* While libiberty provides a fallback, it doesn't provide a prototype. */
+extern const char *strsignal (int);
#endif
#ifdef HAVE_UNISTD_H
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;
enum sim_stop reason;
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
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 == BIG_ENDIAN
- ? BFD_ENDIAN_BIG : BFD_ENDIAN_LITTLE);
+ /* We can't set the endianness in the callback structure until sim_config is
+ called, which happens in sim_open. If it's still the default, switch it.
+ Don't use CURRENT_TARGET_BYTE_ORDER as all its internal processing already
+ happened in sim_config. */
+ if (default_callback.target_endian == BFD_ENDIAN_UNKNOWN)
+ default_callback.target_endian = current_target_byte_order;
/* Was there a program to run? */
prog_argv = STATE_PROG_ARGV (sd);
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
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: