mach/mach_init.c

   1 /* Copyright (C) 1992,93,95,97,2001,02 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, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <mach.h>
  20 #include <mach/mig_support.h>
  21 #include <unistd.h>
  22
  23 mach_port_t __mach_task_self_;
  24 vm_size_t __vm_page_size = 0;   /* Must be data not bss for weak alias.  */
  25 weak_alias (__vm_page_size, vm_page_size)
  26
  27 void
  28 __mach_init (void)
  29 {
  30   kern_return_t err;
  31
  32   __mach_task_self_ = (__mach_task_self) ();
  33   __mig_init (0);
  34
  35 #if HAVE_HOST_PAGE_SIZE
  36   if (err = __host_page_size (__mach_host_self (), &__vm_page_size))
  37     _exit (err);
  38 #else
  39   {
  40     vm_statistics_data_t stats;
  41     if (err = __vm_statistics (__mach_task_self (), &stats))
  42       _exit (err);
  43     __vm_page_size = stats.pagesize;
  44   }
  45 #endif
  46 }
  47 weak_alias (__mach_init, mach_init)