2014-04-04 01:47:14 +08:00
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/* Unmap a shared object's segments. Generic version.
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2017-01-01 08:14:16 +08:00
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Copyright (C) 2014-2017 Free Software Foundation, Inc.
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2014-04-04 01:47:14 +08:00
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _DL_UNMAP_SEGMENTS_H
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#define _DL_UNMAP_SEGMENTS_H 1
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#include <link.h>
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#include <sys/mman.h>
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/* _dl_map_segments ensures that any whole pages in gaps between segments
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are filled in with PROT_NONE mappings. So we can just unmap the whole
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range in one fell swoop. */
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static __always_inline void
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_dl_unmap_segments (struct link_map *l)
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{
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__munmap ((void *) l->l_map_start, l->l_map_end - l->l_map_start);
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}
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#endif /* dl-unmap-segments.h */
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