kernel/2.6.29.6-aldebaran-rt/arch/ia64/kernel/init_task.c

   1 /*
   2  * This is where we statically allocate and initialize the initial
   3  * task.
   4  *
   5  * Copyright (C) 1999, 2002-2003 Hewlett-Packard Co
   6  *      David Mosberger-Tang <davidm@hpl.hp.com>
   7  */
   8
   9 #include <linux/init.h>
  10 #include <linux/mm.h>
  11 #include <linux/fs.h>
  12 #include <linux/module.h>
  13 #include <linux/sched.h>
  14 #include <linux/init_task.h>
  15 #include <linux/mqueue.h>
  16
  17 #include <asm/uaccess.h>
  18 #include <asm/pgtable.h>
  19
  20 static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
  21 static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
  22 struct mm_struct init_mm = INIT_MM(init_mm);
  23
  24 EXPORT_SYMBOL(init_mm);
  25
  26 /*
  27  * Initial task structure.
  28  *
  29  * We need to make sure that this is properly aligned due to the way process stacks are
  30  * handled. This is done by having a special ".data.init_task" section...
  31  */
  32 #define init_thread_info        init_task_mem.s.thread_info
  33
  34 union {
  35         struct {
  36                 struct task_struct task;
  37                 struct thread_info thread_info;
  38         } s;
  39         unsigned long stack[KERNEL_STACK_SIZE/sizeof (unsigned long)];
  40 } init_task_mem asm ("init_task") __attribute__((section(".data.init_task"))) = {{
  41         .task =         INIT_TASK(init_task_mem.s.task),
  42         .thread_info =  INIT_THREAD_INFO(init_task_mem.s.task)
  43 }};
  44
  45 EXPORT_SYMBOL(init_task);