1/*
2 * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,intel.linux}.com)
3 * Licensed under the GPL
4 */
5
6#include "linux/mm.h"
7#include "linux/module.h"
8#include "linux/sched.h"
9#include "linux/init_task.h"
10#include "linux/mqueue.h"
11#include "asm/uaccess.h"
12#include "asm/pgtable.h"
13#include "mem_user.h"
14#include "os.h"
15
16static struct fs_struct init_fs = INIT_FS;
17struct mm_struct init_mm = INIT_MM(init_mm);
18static struct files_struct init_files = INIT_FILES;
19static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
20static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
21EXPORT_SYMBOL(init_mm);
22
23/*
24 * Initial task structure.
25 *
26 * All other task structs will be allocated on slabs in fork.c
27 */
28
29struct task_struct init_task = INIT_TASK(init_task);
30
31EXPORT_SYMBOL(init_task);
32
33/*
34 * Initial thread structure.
35 *
36 * We need to make sure that this is aligned due to the
37 * way process stacks are handled. This is done by having a special
38 * "init_task" linker map entry..
39 */
40
41union thread_union init_thread_union
42	__attribute__((__section__(".data.init_task"))) =
43		{ INIT_THREAD_INFO(init_task) };
44
45union thread_union cpu0_irqstack
46	__attribute__((__section__(".data.init_irqstack"))) =
47		{ INIT_THREAD_INFO(init_task) };
48
49void unprotect_stack(unsigned long stack)
50{
51	os_protect_memory((void *) stack, THREAD_SIZE, 1, 1, 0);
52}
53