init_task.c 1.3 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344
  1. #include <linux/mm.h>
  2. #include <linux/module.h>
  3. #include <linux/sched.h>
  4. #include <linux/init_task.h>
  5. #include <linux/fs.h>
  6. #include <linux/mqueue.h>
  7. #include <linux/nsproxy.h>
  8. #include <asm/thread_info.h>
  9. #include <asm/uaccess.h>
  10. #include <asm/pgtable.h>
  11. static struct fs_struct init_fs = INIT_FS;
  12. static struct files_struct init_files = INIT_FILES;
  13. static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
  14. static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
  15. struct mm_struct init_mm = INIT_MM(init_mm);
  16. struct nsproxy init_nsproxy = INIT_NSPROXY(init_nsproxy);
  17. EXPORT_SYMBOL(init_mm);
  18. /*
  19. * Initial thread structure.
  20. *
  21. * We need to make sure that this is 8192-byte aligned due to the
  22. * way process stacks are handled. This is done by making sure
  23. * the linker maps this in the .text segment right after head.S,
  24. * and making head.S ensure the proper alignment.
  25. *
  26. * The things we do for performance..
  27. */
  28. union thread_union init_thread_union
  29. __attribute__((__section__(".data.init_task"),
  30. __aligned__(THREAD_SIZE))) =
  31. { INIT_THREAD_INFO(init_task) };
  32. /*
  33. * Initial task structure.
  34. *
  35. * All other task structs will be allocated on slabs in fork.c
  36. */
  37. struct task_struct init_task = INIT_TASK(init_task);
  38. EXPORT_SYMBOL(init_task);