libc/kernel/uapi/linux/pr.h

/****************************************************************************
 ****************************************************************************
 ***
 ***   This header was automatically generated from a Linux kernel header
 ***   of the same name, to make information necessary for userspace to
 ***   call into the kernel available to libc.  It contains only constants,
 ***   structures, and macros generated from the original header, and thus,
 ***   contains no copyrightable information.
 ***
 ***   To edit the content of this header, modify the corresponding
 ***   source file (e.g. under external/kernel-headers/original/) then
 ***   run bionic/libc/kernel/tools/update_all.py
 ***
 ***   Any manual change here will be lost the next time this script will
 ***   be run. You've been warned!
 ***
 ****************************************************************************
 ****************************************************************************/
#ifndef _UAPI_PR_H
#define _UAPI_PR_H
#include <linux/types.h>
enum pr_type {
  PR_WRITE_EXCLUSIVE = 1,
  PR_EXCLUSIVE_ACCESS = 2,
  PR_WRITE_EXCLUSIVE_REG_ONLY = 3,
  PR_EXCLUSIVE_ACCESS_REG_ONLY = 4,
  PR_WRITE_EXCLUSIVE_ALL_REGS = 5,
  PR_EXCLUSIVE_ACCESS_ALL_REGS = 6,
};
struct pr_reservation {
  __u64 key;
  __u32 type;
  __u32 flags;
};
struct pr_registration {
  __u64 old_key;
  __u64 new_key;
  __u32 flags;
  __u32 __pad;
};
struct pr_preempt {
  __u64 old_key;
  __u64 new_key;
  __u32 type;
  __u32 flags;
};
struct pr_clear {
  __u64 key;
  __u32 flags;
  __u32 __pad;
};
#define PR_FL_IGNORE_KEY (1 << 0)
#define IOC_PR_REGISTER _IOW('p', 200, struct pr_registration)
#define IOC_PR_RESERVE _IOW('p', 201, struct pr_reservation)
#define IOC_PR_RELEASE _IOW('p', 202, struct pr_reservation)
#define IOC_PR_PREEMPT _IOW('p', 203, struct pr_preempt)
#define IOC_PR_PREEMPT_ABORT _IOW('p', 204, struct pr_preempt)
#define IOC_PR_CLEAR _IOW('p', 205, struct pr_clear)
#endif