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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
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> | |
4e950f6f | 12 | #include <linux/fs.h> |
1da177e4 LT |
13 | #include <linux/module.h> |
14 | #include <linux/sched.h> | |
15 | #include <linux/init_task.h> | |
16 | #include <linux/mqueue.h> | |
17 | ||
7c0f6ba6 | 18 | #include <linux/uaccess.h> |
1da177e4 LT |
19 | #include <asm/pgtable.h> |
20 | ||
1da177e4 LT |
21 | static struct signal_struct init_signals = INIT_SIGNALS(init_signals); |
22 | static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); | |
1da177e4 LT |
23 | /* |
24 | * Initial task structure. | |
25 | * | |
26 | * We need to make sure that this is properly aligned due to the way process stacks are | |
2af7687f | 27 | * handled. This is done by having a special ".data..init_task" section... |
1da177e4 LT |
28 | */ |
29 | #define init_thread_info init_task_mem.s.thread_info | |
7f1a00b6 | 30 | #define init_stack init_task_mem.stack |
1da177e4 LT |
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)]; | |
d200c922 JP |
38 | } init_task_mem asm ("init_task") __init_task_data = |
39 | {{ | |
1da177e4 LT |
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); |