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-rw-r--r--sysdeps/nacl/dl-unmap-segments.h65
1 files changed, 0 insertions, 65 deletions
diff --git a/sysdeps/nacl/dl-unmap-segments.h b/sysdeps/nacl/dl-unmap-segments.h
deleted file mode 100644
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--- a/sysdeps/nacl/dl-unmap-segments.h
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@@ -1,65 +0,0 @@
-/* Unmap a shared object's segments. NaCl version.
- Copyright (C) 2015-2016 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#ifndef _DL_UNMAP_SEGMENTS_H
-#define _DL_UNMAP_SEGMENTS_H 1
-
-#include <link.h>
-#include <sys/mman.h>
-
-/* There is always a big gap between the executable segment and the data
- segments. Other code segments and data pages lie in there. So we must
- unmap each segment individually (except for a codeless module). */
-
-static void __always_inline
-_dl_unmap_segments (struct link_map *l)
-{
- if (l->l_contiguous)
- /* Simple case. */
- __munmap ((void *) l->l_map_start, l->l_map_end - l->l_map_start);
- else
- {
- /* Normally l_phdr points into the RODATA segment, which we will
- unmap in one iteration of the loop. So we cannot use it directly
- throughout. */
-
- struct { ElfW(Addr) start, end; } segments[l->l_phnum], *seg = segments;
-
- for (const ElfW(Phdr) *ph = l->l_phdr; ph < &l->l_phdr[l->l_phnum]; ++ph)
- if (ph->p_type == PT_LOAD)
- {
- seg->start = (l->l_addr + ph->p_vaddr) & -GLRO(dl_pagesize);
- seg->end = (l->l_addr + ph->p_vaddr + ph->p_memsz
- + GLRO(dl_pagesize) - 1) & -GLRO(dl_pagesize);
- if (seg > segments && seg[-1].end == seg->start)
- /* Coalesce two adjacent segments into one munmap call. */
- seg[-1].end = seg->end;
- else
- ++seg;
- }
-
- do
- {
- --seg;
- __munmap ((void *) seg->start, seg->end - seg->start);
- }
- while (seg > segments);
- }
-}
-
-#endif /* dl-unmap-segments.h */