| 1 | /* Unmap a shared object's segments. Generic version. |
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| 2 | Copyright (C) 2014-2024 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #ifndef _DL_UNMAP_SEGMENTS_H |
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| 20 | #define _DL_UNMAP_SEGMENTS_H 1 |
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| 21 | |
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| 22 | #include <link.h> |
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| 23 | #include <sys/mman.h> |
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| 24 | |
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| 25 | /* _dl_map_segments ensures that any whole pages in gaps between segments |
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| 26 | are filled in with PROT_NONE mappings. So we can just unmap the whole |
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| 27 | range in one fell swoop. */ |
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| 28 | |
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| 29 | static __always_inline void |
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| 30 | _dl_unmap_segments (struct link_map *l) |
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| 31 | { |
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| 32 | __munmap ((void *) l->l_map_start, l->l_map_end - l->l_map_start); |
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| 33 | } |
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| 34 | |
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| 35 | #endif /* dl-unmap-segments.h */ |
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| 36 | |
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