| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* Unmap a shared object's segments. Generic version. |
| 2 | Copyright (C) 2014-2016 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 | |
| 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 */ |