xref: /illumos-gate/usr/src/uts/common/sys/mmapobj.h (revision c9eab9d4e096bb9b983e9b007577edfa73c32eff)
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 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _SYS_MMAPOBJ_H
27 #define	_SYS_MMAPOBJ_H
28 
29 #ifdef	__cplusplus
30 extern "C" {
31 #endif
32 
33 /*
34  * Number of mmapobj_result_t structures created on stack for quick allocation.
35  * More will be manually kmem_alloc'ed if needed.
36  * Should be enough for most ELF objects.
37  */
38 #define	LIBVA_CACHED_SEGS 3
39 
40 #ifdef _KERNEL
41 extern void lib_va_init(void);
42 extern void mmapobj_unmap(mmapobj_result_t *, int, int, ushort_t);
43 #endif
44 
45 extern int mmapobj(vnode_t *, uint_t, mmapobj_result_t *, uint_t *, size_t,
46     cred_t *);
47 
48 #ifdef	__cplusplus
49 }
50 #endif
51 
52 #endif	/* _SYS_MMAPOBJ_H */
53