/* Copyright (C) 2012-2018 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/>.  */

#include <unistd.h>

#include <sys/shm.h>

#include <ldsodefs.h>

int

__getshmlba (void)

{

  uint64_t hwcap = GLRO(dl_hwcap);

  int pgsz = GLRO(dl_pagesize);

  if (hwcap & HWCAP_SPARC_V9)

    {

      if (pgsz < (16 * 1024))

	return 16 * 1024;

      else

	return pgsz;

    }

  else if (!(hwcap & HWCAP_SPARC_FLUSH))

    return 64 * 1024;

  else

    return 256 * 1024;

}