| Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2010 Tilera Corporation. All Rights Reserved. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation, version 2. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, but |
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
| 11 | * NON INFRINGEMENT. See the GNU General Public License for |
| 12 | * more details. |
| 13 | */ |
| 14 | |
| 15 | #include <linux/mm.h> |
| 16 | #include <linux/fs.h> |
| 17 | #include <linux/init_task.h> |
| 18 | #include <linux/mqueue.h> |
| 19 | #include <linux/module.h> |
| 20 | #include <linux/start_kernel.h> |
| 21 | #include <linux/uaccess.h> |
| 22 | |
| 23 | static struct signal_struct init_signals = INIT_SIGNALS(init_signals); |
| 24 | static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); |
| 25 | |
| 26 | /* |
| 27 | * Initial thread structure. |
| 28 | * |
| 29 | * We need to make sure that this is THREAD_SIZE aligned due to the |
| 30 | * way process stacks are handled. This is done by having a special |
| 31 | * "init_task" linker map entry.. |
| 32 | */ |
| 33 | union thread_union init_thread_union __init_task_data = { |
| 34 | INIT_THREAD_INFO(init_task) |
| 35 | }; |
| 36 | |
| 37 | /* |
| 38 | * Initial task structure. |
| 39 | * |
| 40 | * All other task structs will be allocated on slabs in fork.c |
| 41 | */ |
| 42 | struct task_struct init_task = INIT_TASK(init_task); |
| 43 | EXPORT_SYMBOL(init_task); |
| 44 | |
| 45 | /* |
| 46 | * per-CPU stack and boot info. |
| 47 | */ |
| 48 | DEFINE_PER_CPU(unsigned long, boot_sp) = |
| 49 | (unsigned long)init_stack + THREAD_SIZE; |
| 50 | |
| 51 | #ifdef CONFIG_SMP |
| 52 | DEFINE_PER_CPU(unsigned long, boot_pc) = (unsigned long)start_kernel; |
| 53 | #else |
| 54 | /* |
| 55 | * The variable must be __initdata since it references __init code. |
| 56 | * With CONFIG_SMP it is per-cpu data, which is exempt from validation. |
| 57 | */ |
| 58 | unsigned long __initdata boot_pc = (unsigned long)start_kernel; |
| 59 | #endif |