sysdeps/unix/sysv/linux/m68k/getpagesize.c

   1 /* Copyright (C) 2000-2024 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library.  If not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <unistd.h>
  19 #include <sys/param.h>
  20 #include <errno.h>
  21
  22 #include <ldsodefs.h>
  23 #include <sysdep.h>
  24 #include <sys/syscall.h>
  25
  26 /* Return the system page size.  */
  27 int
  28 __getpagesize (void)
  29 {
  30   int result;
  31
  32   if (GLRO(dl_pagesize) != 0)
  33     return GLRO(dl_pagesize);
  34
  35   result = INTERNAL_SYSCALL_CALL (getpagesize);
  36   /* The only possible error is ENOSYS.  */
  37   if (!INTERNAL_SYSCALL_ERROR_P (result))
  38     return result;
  39
  40   return 4096;
  41 }
  42 libc_hidden_def (__getpagesize)
  43 weak_alias (__getpagesize, getpagesize)