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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);
46