#include <linux/mm.h> #include <linux/sched.h> #include <linux/init.h> #include <linux/init_task.h> #include <asm/uaccess.h> #include <asm/pgtable.h> #include <asm/pgalloc.h> static struct fs_struct init_fs = INIT_FS; static struct files_struct init_files = INIT_FILES; static struct signal_struct init_signals = INIT_SIGNALS(init_signals); struct mm_struct init_mm = INIT_MM(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.. */ unsigned char interrupt_stack[ISTACK_SIZE] __attribute__ ((section("init_istack"), aligned(4096))); union thread_union init_thread_union __attribute__((aligned(128))) __attribute__((__section__(".data.init_task"))) = { INIT_THREAD_INFO(init_task) }; pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__ ((aligned(4096))) = { {0}, }; #ifdef __LP64__ unsigned long pmd0[PTRS_PER_PMD] __attribute__ ((aligned(4096))) = { 0, }; #endif unsigned long pg0[PT_INITIAL * PTRS_PER_PTE] __attribute__ ((aligned(4096))) = { 0, }; /* * Initial task structure. * * All other task structs will be allocated on slabs in fork.c */ __asm__(".data"); struct task_struct init_task = INIT_TASK(init_task);