exec_domain.c 1.1 KB

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  1. // SPDX-License-Identifier: GPL-2.0
  2. /*
  3. * Handling of different ABIs (personalities).
  4. *
  5. * We group personalities into execution domains which have their
  6. * own handlers for kernel entry points, signal mapping, etc...
  7. *
  8. * 2001-05-06 Complete rewrite, Christoph Hellwig (hch@infradead.org)
  9. */
  10. #include <linux/init.h>
  11. #include <linux/kernel.h>
  12. #include <linux/kmod.h>
  13. #include <linux/module.h>
  14. #include <linux/personality.h>
  15. #include <linux/proc_fs.h>
  16. #include <linux/sched.h>
  17. #include <linux/seq_file.h>
  18. #include <linux/syscalls.h>
  19. #include <linux/sysctl.h>
  20. #include <linux/types.h>
  21. #ifdef CONFIG_PROC_FS
  22. static int execdomains_proc_show(struct seq_file *m, void *v)
  23. {
  24. seq_puts(m, "0-0\tLinux \t[kernel]\n");
  25. return 0;
  26. }
  27. static int __init proc_execdomains_init(void)
  28. {
  29. proc_create_single("execdomains", 0, NULL, execdomains_proc_show);
  30. return 0;
  31. }
  32. module_init(proc_execdomains_init);
  33. #endif
  34. SYSCALL_DEFINE1(personality, unsigned int, personality)
  35. {
  36. unsigned int old = current->personality;
  37. if (personality != 0xffffffff)
  38. set_personality(personality);
  39. return old;
  40. }