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
32 inline static mmapobj_result_t *
find_segment(caddr_t roffset,Rt_map * lmp)33 find_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