/* * Static declaration of "init" task data structure. * * Copyright (C) 2000 Paul Bame <bame at parisc-linux.org> * Copyright (C) 2000-2001 John Marvin <jsm at parisc-linux.org> * Copyright (C) 2001 Helge Deller <deller @ parisc-linux.org> * Copyright (C) 2002 Matthew Wilcox <willy with parisc-linux.org> * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/mm.h> #include <linux/fs.h> #include <linux/module.h> #include <linux/sched.h> #include <linux/init.h> #include <linux/init_task.h> #include <linux/mqueue.h> #include <asm/uaccess.h> #include <asm/pgtable.h> #include <asm/pgalloc.h> static struct fs_struct init_fs = INIT_FS; static struct signal_struct init_signals = INIT_SIGNALS(init_signals); static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); struct mm_struct init_mm = INIT_MM(init_mm); EXPORT_SYMBOL(init_mm); /* * Initial task structure. * * We need to make sure that this is 16384-byte aligned due to the * way process stacks are handled. This is done by having a special * "init_task" linker map entry.. */ union thread_union init_thread_union __attribute__((aligned(128))) __attribute__((__section__(".data.init_task"))) = { INIT_THREAD_INFO(init_task) }; #if PT_NLEVELS == 3 /* NOTE: This layout exactly conforms to the hybrid L2/L3 page table layout * with the first pmd adjacent to the pgd and below it. gcc doesn't actually * guarantee that global objects will be laid out in memory in the same order * as the order of declaration, so put these in different sections and use * the linker script to order them. */ pmd_t pmd0[PTRS_PER_PMD] __attribute__ ((__section__ (".data.vm0.pmd"), aligned(PAGE_SIZE))); #endif pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__ ((__section__ (".data.vm0.pgd"), aligned(PAGE_SIZE))); pte_t pg0[PT_INITIAL * PTRS_PER_PTE] __attribute__ ((__section__ (".data.vm0.pte"), aligned(PAGE_SIZE))); /* * Initial task structure. * * All other task structs will be allocated on slabs in fork.c */ EXPORT_SYMBOL(init_task); __asm__(".data"); struct task_struct init_task = INIT_TASK(init_task);