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/*
23 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
24 */
25#ifndef	_INLINE_GEN_H
26#define	_INLINE_GEN_H
27
28#include	<sys/types.h>
29#include	<sys/mman.h>
30#include	<rtld.h>
31
32inline static mmapobj_result_t *
33find_segment(caddr_t roffset, Rt_map *lmp)
34{
35	mmapobj_result_t	*mpp = MMAPS(lmp);
36	uint_t			mnum = MMAPCNT(lmp);
37
38	/*
39	 * Scan segments backwards.  The heaviest use of this function stems
40	 * from relocation processing.  And typically, relocations are against
41	 * the data segment.  By scanning segments in reverse order, the data
42	 * segment is processed first.
43	 */
44	for (mpp += (mnum - 1); mnum; mnum--, mpp--) {
45		if ((roffset >= (mpp->mr_addr + mpp->mr_offset)) &&
46		    (roffset < (mpp->mr_addr + mpp->mr_msize)))
47			return (mpp);
48	}
49	return (NULL);
50}
51
52#endif	/* _INLINE_GEN_H */
53