noinitramfs.c 1.4 KB

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  1. /*
  2. * init/noinitramfs.c
  3. *
  4. * Copyright (C) 2006, NXP Semiconductors, All Rights Reserved
  5. * Author: Jean-Paul Saman <jean-paul.saman@nxp.com>
  6. *
  7. * This program is free software; you can redistribute it and/or modify
  8. * it under the terms of the GNU General Public License as published by
  9. * the Free Software Foundation; version 2 of the License.
  10. *
  11. * This program is distributed in the hope that it will be useful,
  12. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14. * GNU General Public License for more details.
  15. *
  16. * You should have received a copy of the GNU General Public License
  17. * along with this program; if not, write to the Free Software
  18. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19. */
  20. #include <linux/init.h>
  21. #include <linux/stat.h>
  22. #include <linux/kdev_t.h>
  23. #include <linux/syscalls.h>
  24. /*
  25. * Create a simple rootfs that is similar to the default initramfs
  26. */
  27. static int __init default_rootfs(void)
  28. {
  29. int err;
  30. err = sys_mkdir("/dev", 0755);
  31. if (err < 0)
  32. goto out;
  33. err = sys_mknod((const char __user *) "/dev/console",
  34. S_IFCHR | S_IRUSR | S_IWUSR,
  35. new_encode_dev(MKDEV(5, 1)));
  36. if (err < 0)
  37. goto out;
  38. err = sys_mkdir("/root", 0700);
  39. if (err < 0)
  40. goto out;
  41. return 0;
  42. out:
  43. printk(KERN_WARNING "Failed to create a rootfs\n");
  44. return err;
  45. }
  46. rootfs_initcall(default_rootfs);