| #include <linux/mm.h> |
| #include <linux/module.h> |
| #include <linux/sched.h> |
| #include <linux/init.h> |
| #include <linux/init_task.h> |
| #include <linux/fs.h> |
| #include <linux/mqueue.h> |
| |
| #include <asm/uaccess.h> |
| #include <asm/pgtable.h> |
| #include <asm/desc.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); |
| 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 8192-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__((__section__(".data.init_task"))) = |
| { INIT_THREAD_INFO(init_task) }; |
| |
| /* |
| * Initial task structure. |
| * |
| * All other task structs will be allocated on slabs in fork.c |
| */ |
| struct task_struct init_task = INIT_TASK(init_task); |
| |
| EXPORT_SYMBOL(init_task); |
| /* |
| * per-CPU TSS segments. Threads are completely 'soft' on Linux, |
| * no more per-task TSS's. The TSS size is kept cacheline-aligned |
| * so they are allowed to end up in the .data.cacheline_aligned |
| * section. Since TSS's are completely CPU-local, we want them |
| * on exact cacheline boundaries, to eliminate cacheline ping-pong. |
| */ |
| DEFINE_PER_CPU(struct tss_struct, init_tss) ____cacheline_internodealigned_in_smp = INIT_TSS; |
| |
| #define ALIGN_TO_4K __attribute__((section(".data.init_task"))) |