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fcccd512 | 1 | /* Unmap a shared object's segments. Generic version. |
581c785b | 2 | Copyright (C) 2014-2022 Free Software Foundation, Inc. |
fcccd512 RM |
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 | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
fcccd512 RM |
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 | ||
29 | static __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 */ |