/*      $NetBSD: exec_hppa.c,v 1.1 2014/02/24 07:23:43 skrll Exp $      */

/*      $OpenBSD: exec_hppa.c,v 1.7 1999/05/06 02:13:15 mickey Exp $    */

/*
* Copyright (c) 1998-2004 Michael Shalayeff
* All rights reserved.
*
* 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 AUTHOR ``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 AUTHOR OR HIS RELATIVES 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 MIND, 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/param.h>
#include <sys/exec.h>
#include <sys/reboot.h>
#include <dev/cons.h>
#include <stand/boot/bootarg.h>
#include <sys/disklabel.h>
#include "libsa.h"
#include <lib/libsa/exec.h>

#include <machine/pdc.h>
#include "dev_hppa.h"

typedef void (*startfuncp)(int, int, int, int, int, int, void *)
   __attribute__ ((noreturn));

void
machdep_exec(struct x_param *xp, int howto, void *loadaddr)
{
#ifdef EXEC_DEBUG
       extern int debug;
       int i;
#endif
       size_t ac = BOOTARG_LEN;
       void *av = (void *)BOOTARG_OFF;
#ifdef notyet
       makebootargs(av, &ac);
#endif

#ifdef EXEC_DEBUG
       if (debug) {
               printf("ep=0x%x [", xp->xp_entry);
               for (i = 0; i < 10240; i++) {
                       if (!(i % 8)) {
                               printf("\b\n%p:", &((u_int *)xp->xp_entry)[i]);
                               if (getchar() != ' ')
                                       break;
                       }
                       printf("%x,", ((int *)xp->xp_entry)[i]);
               }
               printf("\b\b ]\n");
       }
#endif

       fcacheall();

       __asm("mtctl %r0, %cr17");
       __asm("mtctl %r0, %cr17");
       /* stack and the gung is ok at this point, so, no need for asm setup */
       (*(startfuncp)(xp->xp_entry)) ((int)pdc, howto, bootdev, xp->xp_end,
                                      BOOTARG_APIVER, ac, av);
       /* not reached */
}