xref: /titanic_50/usr/src/uts/intel/ia32/krtld/kobj_crt.s (revision 53548f91e84cd97a638c23b5b295cc69089a5030)
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#pragma ident	"%Z%%M%	%I%	%E% SMI"
27
28/*
29 * exit routine from linker/loader to kernel
30 */
31
32#include <sys/asm_linkage.h>
33#include <sys/reboot.h>
34#include <sys/trap.h>
35
36/*
37 *  exitto is called from main() and does 1 things
38 *	It then jumps directly to the just-loaded standalone.
39 *	There is NO RETURN from exitto(). ????
40 */
41
42#if defined(lint)
43
44/* ARGSUSED */
45void
46exitto(caddr_t entrypoint)
47{}
48
49#else	/* lint */
50
51	.data
52save_esp2:
53        .long   0
54
55	ENTRY(exitto)
56	push	%ebp			/ save stack
57	mov	%esp,%ebp
58	pushal				/ protect secondary boot
59
60	movl	%esp, %eax
61	movl	%eax, save_esp2
62
63	/holds address of array of pointers to functions
64	movl	$romp, %eax
65	movl    (%eax), %ecx
66
67	/holds address of bootops structure
68	movl	$ops, %eax
69	movl    (%eax), %ebx
70
71	movl	8(%ebp), %eax
72	call   *%eax
73
74	movl	save_esp2, %eax
75	movl	%eax, %esp
76
77	popal
78	pop	%ebp			/ restore frame pointer
79
80	ret
81	SET_SIZE(exitto)
82#endif
83