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1/* Unmap a shared object's segments. Generic version.
2 Copyright (C) 2014-2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19#ifndef _DL_UNMAP_SEGMENTS_H
20#define _DL_UNMAP_SEGMENTS_H 1
21
22#include <link.h>
23#include <sys/mman.h>
24
25/* _dl_map_segments ensures that any whole pages in gaps between segments
26 are filled in with PROT_NONE mappings. So we can just unmap the whole
27 range in one fell swoop. */
28
29static __always_inline void
30_dl_unmap_segments (struct link_map *l)
31{
32 __munmap ((void *) l->l_map_start, l->l_map_end - l->l_map_start);
33}
34
35#endif /* dl-unmap-segments.h */
36

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