arch/nios2nommu/kernel/init_task.c

   1 /*--------------------------------------------------------------------
   2  *
   3  * arch/nios2nommu/kernel/init_task.c
   4  *
   5  * Ported from arch/m68knommu/kernel/init_task.c
   6  *
   7  * Copyright (C) 2003, Microtronix Datacom Ltd.
   8  *
   9  * All rights reserved.
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
  17  * WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  19  * NON INFRINGEMENT.  See the GNU General Public License for more
  20  * details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  25  *
  26  *
  27  * Jan/20/2004          dgt         NiosII
  28  *
  29  ---------------------------------------------------------------------*/
  30
  31 #include <linux/mm.h>
  32 #include <linux/module.h>
  33 #include <linux/sched.h>
  34 #include <linux/init.h>
  35 #include <linux/init_task.h>
  36 #include <linux/fs.h>
  37 #include <linux/mqueue.h>
  38
  39 #include <asm/uaccess.h>
  40 #include <asm/pgtable.h>
  41
  42 static struct fs_struct init_fs = INIT_FS;
  43 static struct files_struct init_files = INIT_FILES;
  44 static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
  45 static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
  46 struct mm_struct init_mm = INIT_MM(init_mm);
  47
  48 EXPORT_SYMBOL(init_mm);
  49
  50 /*
  51  * Initial task structure.
  52  *
  53  * All other task structs will be allocated on slabs in fork.c
  54  */
  55 __asm__(".align 2");
  56 struct task_struct init_task = INIT_TASK(init_task);
  57
  58
  59 /*
  60  * Initial thread structure.
  61  *
  62  * We need to make sure that this is 8192-byte aligned due to the
  63  * way process stacks are handled. This is done by having a special
  64  * "init_task" linker map entry..
  65  */
  66 union thread_union init_thread_union
  67         __attribute__((__section__(".data.init_task"))) =
  68                 { INIT_THREAD_INFO(init_task) };
  69