xref: /illumos-gate/usr/src/uts/intel/amd64/krtld/kobj_crt.S (revision 533affcbc7fc4d0c8132976ea454aaa715fe2307)
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 * Copyright 2019 Joyent, Inc.
25 */
26
27/*
28 * exit routine from linker/loader to kernel
29 */
30
31#include <sys/asm_linkage.h>
32#include <sys/reboot.h>
33
34/*
35 *  exitto is called from main() and does 1 things
36 *	It then jumps directly to the just-loaded standalone.
37 *	There is NO RETURN from exitto().
38 */
39
40
41	ENTRY(exitto)
42
43	/preserve destination in temporary register %r11
44	movq	%rdi, %r11
45
46	/holds address of array of pointers to functions
47	/ $arg1
48	movq	$romp, %rax
49	movq    (%rax), %rdi
50
51	/holds address of bootops structure
52	/ $arg2
53	movq	$ops, %rax
54	movq    (%rax), %rdx
55
56	/ Call destination
57	INDIRECT_CALL_REG(r11)
58
59	SET_SIZE(exitto)
60
61