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      1 /*	$NetBSD: exec_hppa.c,v 1.1 2014/02/24 07:23:43 skrll Exp $	*/
      2 
      3 /*	$OpenBSD: exec_hppa.c,v 1.7 1999/05/06 02:13:15 mickey Exp $	*/
      4 
      5 /*
      6  * Copyright (c) 1998-2004 Michael Shalayeff
      7  * All rights reserved.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
     22  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     24  * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     26  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
     27  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     28  * THE POSSIBILITY OF SUCH DAMAGE.
     29  *
     30  */
     31 
     32 #include <sys/param.h>
     33 #include <sys/exec.h>
     34 #include <sys/reboot.h>
     35 #include <dev/cons.h>
     36 #include <stand/boot/bootarg.h>
     37 #include <sys/disklabel.h>
     38 #include "libsa.h"
     39 #include <lib/libsa/exec.h>
     40 
     41 #include <machine/pdc.h>
     42 #include "dev_hppa.h"
     43 
     44 typedef void (*startfuncp)(int, int, int, int, int, int, void *)
     45     __attribute__ ((noreturn));
     46 
     47 void
     48 machdep_exec(struct x_param *xp, int howto, void *loadaddr)
     49 {
     50 #ifdef EXEC_DEBUG
     51 	extern int debug;
     52 	int i;
     53 #endif
     54 	size_t ac = BOOTARG_LEN;
     55 	void *av = (void *)BOOTARG_OFF;
     56 #ifdef notyet
     57 	makebootargs(av, &ac);
     58 #endif
     59 
     60 #ifdef EXEC_DEBUG
     61 	if (debug) {
     62 		printf("ep=0x%x [", xp->xp_entry);
     63 		for (i = 0; i < 10240; i++) {
     64 			if (!(i % 8)) {
     65 				printf("\b\n%p:", &((u_int *)xp->xp_entry)[i]);
     66 				if (getchar() != ' ')
     67 					break;
     68 			}
     69 			printf("%x,", ((int *)xp->xp_entry)[i]);
     70 		}
     71 		printf("\b\b ]\n");
     72 	}
     73 #endif
     74 
     75 	fcacheall();
     76 
     77 	__asm("mtctl %r0, %cr17");
     78 	__asm("mtctl %r0, %cr17");
     79 	/* stack and the gung is ok at this point, so, no need for asm setup */
     80 	(*(startfuncp)(xp->xp_entry)) ((int)pdc, howto, bootdev, xp->xp_end,
     81 				       BOOTARG_APIVER, ac, av);
     82 	/* not reached */
     83 }
     84