blob: f9efe9739d3fe5da25621d278e4c7a2e6a8110e5 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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>
Alexey Dobriyan4e950f62007-07-30 02:36:13 +040011#include <linux/fs.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070012#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
Linus Torvalds1da177e2005-04-16 15:20:36 -070020static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
21static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
Linus Torvalds1da177e2005-04-16 15:20:36 -070022/*
23 * Initial task structure.
24 *
25 * We need to make sure that this is properly aligned due to the way process stacks are
Tim Abbott2af76872010-02-20 01:03:35 +010026 * handled. This is done by having a special ".data..init_task" section...
Linus Torvalds1da177e2005-04-16 15:20:36 -070027 */
28#define init_thread_info init_task_mem.s.thread_info
29
30union {
31 struct {
32 struct task_struct task;
33 struct thread_info thread_info;
34 } s;
35 unsigned long stack[KERNEL_STACK_SIZE/sizeof (unsigned long)];
Joe Perchesd200c922009-09-20 18:14:13 -040036} init_task_mem asm ("init_task") __init_task_data =
37 {{
Linus Torvalds1da177e2005-04-16 15:20:36 -070038 .task = INIT_TASK(init_task_mem.s.task),
39 .thread_info = INIT_THREAD_INFO(init_task_mem.s.task)
40}};
41
42EXPORT_SYMBOL(init_task);