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
machdep_exec(struct x_param * xp,int howto,void * loadaddr)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