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