/*      $NetBSD: sunos32_mod.c,v 1.7 2019/12/12 02:15:42 pgoyette Exp $ */

/*-
 * Copyright (c) 2008 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software developed for The NetBSD Foundation
 * by Andrew Doran.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: sunos32_mod.c,v 1.7 2019/12/12 02:15:42 pgoyette Exp $");

#include <sys/param.h>
#include <sys/module.h>
#include <sys/exec.h>
#include <sys/exec_aout.h>
#include <sys/signalvar.h>
#include <sys/compat_stub.h>

#include <machine/sunos_machdep.h>

#include <compat/sunos32/sunos32_exec.h>

#include <compat/netbsd32/netbsd32_exec.h>

MODULE(MODULE_CLASS_EXEC, compat_sunos,
    "compat_09,compat_util,compat_netbsd32,exec_aout");

static struct execsw sunos_execsw = {
        .es_hdrsz = SUNOS32_AOUT_HDR_SIZE,
        .es_makecmds = exec_sunos32_aout_makecmds,
        .u = {
                .elf_probe_func = NULL,
        },
        .es_emul = &emul_sunos,
        .es_prio = EXECSW_PRIO_ANY,
        .es_arglen = 0,
        .es_copyargs = netbsd32_copyargs,
        .es_setregs = NULL,
        .es_coredump = coredump_netbsd,
        .es_setup_stack = exec_setup_stack,
};

static int
get_sunos_emul(const struct emul **e)
{
 
        *e = &emul_sunos;
        return 0;
}
  
static int
compat_sunos_modcmd(modcmd_t cmd, void *arg)
{
 
        switch (cmd) {
        case MODULE_CMD_INIT:
                MODULE_HOOK_SET(get_emul_sunos_hook, get_sunos_emul);
                return exec_add(&sunos_execsw, 1);
 
        case MODULE_CMD_FINI:
                MODULE_HOOK_UNSET(get_emul_sunos_hook);
                return exec_remove(&sunos_execsw, 1);

        default:
                return ENOTTY;
        }
}