2 #include <linux/module.h>
3 #include <linux/sched.h>
4 #include <linux/init.h>
5 #include <linux/init_task.h>
7 #include <linux/mqueue.h>
8 #include <linux/nsproxy.h>
10 #include <asm/uaccess.h>
11 #include <asm/pgtable.h>
14 static struct fs_struct init_fs = INIT_FS;
15 static struct files_struct init_files = INIT_FILES;
16 static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
17 static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
18 struct mm_struct init_mm = INIT_MM(init_mm);
19 struct nsproxy init_nsproxy = INIT_NSPROXY(init_nsproxy);
21 EXPORT_SYMBOL(init_mm);
24 * Initial task structure.
26 * We need to make sure that this is 8192-byte aligned due to the
27 * way process stacks are handled. This is done by having a special
28 * "init_task" linker map entry..
30 union thread_union init_thread_union
31 __attribute__((__section__(".data.init_task"))) =
32 { INIT_THREAD_INFO(init_task) };
35 * Initial task structure.
37 * All other task structs will be allocated on slabs in fork.c
39 struct task_struct init_task = INIT_TASK(init_task);
41 EXPORT_SYMBOL(init_task);
43 * per-CPU TSS segments. Threads are completely 'soft' on Linux,
44 * no more per-task TSS's. The TSS size is kept cacheline-aligned
45 * so they are allowed to end up in the .data.cacheline_aligned
46 * section. Since TSS's are completely CPU-local, we want them
47 * on exact cacheline boundaries, to eliminate cacheline ping-pong.
49 DEFINE_PER_CPU(struct tss_struct, init_tss) ____cacheline_internodealigned_in_smp = INIT_TSS;
51 /* Copies of the original ist values from the tss are only accessed during
52 * debugging, no special alignment required.
54 DEFINE_PER_CPU(struct orig_ist, orig_ist);
56 #define ALIGN_TO_4K __attribute__((section(".data.init_task")))