init_task.c 1013 B

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