xref: /titanic_41/usr/src/cmd/mdb/i86pc/modules/unix/unix_sup.s (revision 18ba57035593bcafd166b6540f5881f7ecfca174)
1/*
2 * This file and its contents are supplied under the terms of the
3 * Common Development and Distribution License ("CDDL"), version 1.0.
4 * You may only use this file in accordance with the terms of version
5 * 1.0 of the CDDL.
6 *
7 * A full copy of the text of the CDDL should have accompanied this
8 * source.  A copy of the CDDL is also available via the Internet at
9 * http://www.illumos.org/license/CDDL.
10 */
11
12/*
13 * Copyright 2015 Joyent, Inc.
14 */
15
16#if !defined(__lint)
17	.file	"unix_sup.s"
18#endif /* __lint */
19
20/*
21 * Support routines for the unix kmdb module
22 */
23
24#include <sys/asm_linkage.h>
25
26#if defined(__lint)
27
28#include <sys/types.h>
29
30ulong_t
31kmdb_unix_getcr0(void)
32{ return (0); }
33
34ulong_t
35kmdb_unix_getcr4(void)
36{ return (0); }
37
38#else	/* __lint */
39
40#if defined(__amd64)
41	ENTRY(kmdb_unix_getcr0)
42	movq %cr0, %rax
43	ret
44	SET_SIZE(kmdb_unix_getcr0)
45
46	ENTRY(kmdb_unix_getcr4)
47	movq %cr4, %rax
48	ret
49	SET_SIZE(kmdb_unix_getcr4)
50
51#elif defined (__i386)
52	ENTRY(kmdb_unix_getcr0)
53	movl %cr0, %eax
54	ret
55	SET_SIZE(kmdb_unix_getcr0)
56
57	ENTRY(kmdb_unix_getcr4)
58	movl %cr4, %eax
59	ret
60	SET_SIZE(kmdb_unix_getcr4)
61
62#endif	/* __i386 */
63
64#endif /* __lint */
65