arch/ia64/kernel/init_task.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * This is where we statically allocate and initialize the initial
   4  * task.
   5  *
   6  * Copyright (C) 1999, 2002-2003 Hewlett-Packard Co
   7  *      David Mosberger-Tang <davidm@hpl.hp.com>
   8  */
   9
  10 #include <linux/init.h>
  11 #include <linux/mm.h>
  12 #include <linux/fs.h>
  13 #include <linux/module.h>
  14 #include <linux/sched.h>
  15 #include <linux/init_task.h>
  16 #include <linux/mqueue.h>
  17
  18 #include <linux/uaccess.h>
  19 #include <asm/pgtable.h>
  20
  21 static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
  22 static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
  23 /*
  24  * Initial task structure.
  25  *
  26  * We need to make sure that this is properly aligned due to the way process stacks are
  27  * handled. This is done by having a special ".data..init_task" section...
  28  */
  29 #define init_thread_info        init_task_mem.s.thread_info
  30 #define init_stack              init_task_mem.stack
  31
  32 union {
  33         struct {
  34                 struct task_struct task;
  35                 struct thread_info thread_info;
  36         } s;
  37         unsigned long stack[KERNEL_STACK_SIZE/sizeof (unsigned long)];
  38 } init_task_mem asm ("init_task") __init_task_data =
  39         {{
  40         .task =         INIT_TASK(init_task_mem.s.task),
  41         .thread_info =  INIT_THREAD_INFO(init_task_mem.s.task)
  42 }};
  43
  44 EXPORT_SYMBOL(init_task);