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50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/* Copyright (C) 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Andreas Schwab <schwab@suse.de>.
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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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <unistd.h>
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#include <sys/param.h>
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#include <errno.h>
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#include <sysdep.h>
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#include <sys/syscall.h>
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/* Return the system page size. */
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int
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__getpagesize ()
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{
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extern size_t _dl_pagesize;
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#ifdef __NR_getpagesize
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int result;
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#endif
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if (_dl_pagesize != 0)
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return _dl_pagesize;
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#ifdef __NR_getpagesize
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result = INLINE_SYSCALL (getpagesize, 0);
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/* The only possible error is ENOSYS. */
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if (result != -1)
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return result;
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#endif
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return 4096;
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}
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weak_alias (__getpagesize, getpagesize)
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