/* Copyright (C) 1991,1992,1995-1997,2000,2002,2004,2010
   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, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <assert.h>
#include <unistd.h>
#include <sys/param.h>

#include <ldsodefs.h>
#include <kernel-features.h>

/* Return the system page size.  */
int
__getpagesize ()
{
#ifdef __ASSUME_AT_PAGESIZE
  assert (GLRO(dl_pagesize) != 0);
  return GLRO(dl_pagesize);
#else
  if (GLRO(dl_pagesize) != 0)
    return GLRO(dl_pagesize);

# ifdef	EXEC_PAGESIZE
  return EXEC_PAGESIZE;
# else	/* No EXEC_PAGESIZE.  */
#  ifdef NBPG
#   ifndef CLSIZE
#    define CLSIZE	1
#   endif	/* No CLSIZE.  */
  return NBPG * CLSIZE;
#  else	/* No NBPG.  */
  return NBPC;
#  endif	/* NBPG.  */
# endif	/* EXEC_PAGESIZE.  */
#endif
}
libc_hidden_def (__getpagesize)
weak_alias (__getpagesize, getpagesize)