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Commit | Line | Data |
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c14b8494 JD |
1 | /* |
2 | * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,intel.linux}.com) | |
1da177e4 LT |
3 | * Licensed under the GPL |
4 | */ | |
5 | ||
1da177e4 | 6 | #include "linux/mm.h" |
4e950f6f | 7 | #include "linux/fs.h" |
1da177e4 LT |
8 | #include "linux/module.h" |
9 | #include "linux/sched.h" | |
10 | #include "linux/init_task.h" | |
11 | #include "linux/mqueue.h" | |
12 | #include "asm/uaccess.h" | |
13 | #include "asm/pgtable.h" | |
1da177e4 | 14 | #include "mem_user.h" |
0f80bc85 | 15 | #include "os.h" |
1da177e4 LT |
16 | |
17 | static struct fs_struct init_fs = INIT_FS; | |
18 | struct mm_struct init_mm = INIT_MM(init_mm); | |
19 | static struct files_struct init_files = INIT_FILES; | |
20 | static struct signal_struct init_signals = INIT_SIGNALS(init_signals); | |
21 | static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); | |
22 | EXPORT_SYMBOL(init_mm); | |
23 | ||
24 | /* | |
25 | * Initial task structure. | |
26 | * | |
27 | * All other task structs will be allocated on slabs in fork.c | |
28 | */ | |
29 | ||
30 | struct task_struct init_task = INIT_TASK(init_task); | |
31 | ||
32 | EXPORT_SYMBOL(init_task); | |
33 | ||
34 | /* | |
35 | * Initial thread structure. | |
36 | * | |
c14b8494 | 37 | * We need to make sure that this is aligned due to the |
1da177e4 LT |
38 | * way process stacks are handled. This is done by having a special |
39 | * "init_task" linker map entry.. | |
40 | */ | |
41 | ||
c14b8494 JD |
42 | union thread_union init_thread_union |
43 | __attribute__((__section__(".data.init_task"))) = | |
44 | { INIT_THREAD_INFO(init_task) }; | |
45 | ||
46 | union thread_union cpu0_irqstack | |
47 | __attribute__((__section__(".data.init_irqstack"))) = | |
48 | { INIT_THREAD_INFO(init_task) }; | |
1da177e4 LT |
49 | |
50 | void unprotect_stack(unsigned long stack) | |
51 | { | |
e1a79c40 | 52 | os_protect_memory((void *) stack, THREAD_SIZE, 1, 1, 0); |
1da177e4 | 53 | } |