#ifndef _LINUX_PRCTL_H
  #define _LINUX_PRCTL_H
  
  /* Values to pass as first argument to prctl() */
  
  #define PR_SET_PDEATHSIG  1  /* Second arg is a signal */
  #define PR_GET_PDEATHSIG  2  /* Second arg is a ptr to return the signal */
  
  /* Get/set current->mm->dumpable */
  #define PR_GET_DUMPABLE   3
  #define PR_SET_DUMPABLE   4
  
  /* Get/set unaligned access control bits (if meaningful) */
  #define PR_GET_UNALIGN	  5
  #define PR_SET_UNALIGN	  6
  # define PR_UNALIGN_NOPRINT	1	/* silently fix up unaligned user accesses */
  # define PR_UNALIGN_SIGBUS	2	/* generate SIGBUS on unaligned user access */

  /* Get/set whether or not to drop capabilities on setuid() away from
   * uid 0 (as per security/commoncap.c) */

  #define PR_GET_KEEPCAPS   7
  #define PR_SET_KEEPCAPS   8
  
  /* Get/set floating-point emulation control bits (if meaningful) */
  #define PR_GET_FPEMU  9
  #define PR_SET_FPEMU 10
  # define PR_FPEMU_NOPRINT	1	/* silently emulate fp operations accesses */
  # define PR_FPEMU_SIGFPE	2	/* don't emulate fp operations, send SIGFPE instead */
  
  /* Get/set floating-point exception mode (if meaningful) */
  #define PR_GET_FPEXC	11
  #define PR_SET_FPEXC	12
  # define PR_FP_EXC_SW_ENABLE	0x80	/* Use FPEXC for FP exception enables */
  # define PR_FP_EXC_DIV		0x010000	/* floating point divide by zero */
  # define PR_FP_EXC_OVF		0x020000	/* floating point overflow */
  # define PR_FP_EXC_UND		0x040000	/* floating point underflow */
  # define PR_FP_EXC_RES		0x080000	/* floating point inexact result */
  # define PR_FP_EXC_INV		0x100000	/* floating point invalid operation */
  # define PR_FP_EXC_DISABLED	0	/* FP exceptions disabled */
  # define PR_FP_EXC_NONRECOV	1	/* async non-recoverable exc. mode */
  # define PR_FP_EXC_ASYNC	2	/* async recoverable exception mode */
  # define PR_FP_EXC_PRECISE	3	/* precise exception mode */
  
  /* Get/set whether we use statistical process timing or accurate timestamp
   * based process timing */
  #define PR_GET_TIMING   13
  #define PR_SET_TIMING   14
  # define PR_TIMING_STATISTICAL  0       /* Normal, traditional,
                                                     statistical process timing */
  # define PR_TIMING_TIMESTAMP    1       /* Accurate timestamp based
                                                     process timing */
  
  #define PR_SET_NAME    15		/* Set process name */
  #define PR_GET_NAME    16		/* Get process name */

  /* Get/set process endian */
  #define PR_GET_ENDIAN	19
  #define PR_SET_ENDIAN	20
  # define PR_ENDIAN_BIG		0
  # define PR_ENDIAN_LITTLE	1	/* True little endian mode */
  # define PR_ENDIAN_PPC_LITTLE	2	/* "PowerPC" pseudo little endian */

  /* Get/set process seccomp mode */
  #define PR_GET_SECCOMP	21
  #define PR_SET_SECCOMP	22

  /* Get/set the capability bounding set (as per security/commoncap.c) */

  #define PR_CAPBSET_READ 23
  #define PR_CAPBSET_DROP 24

  /* Get/set the process' ability to use the timestamp counter instruction */
  #define PR_GET_TSC 25
  #define PR_SET_TSC 26
  # define PR_TSC_ENABLE		1	/* allow the use of the timestamp counter */
  # define PR_TSC_SIGSEGV		2	/* throw a SIGSEGV instead of reading the TSC */

  /* Get/set securebits (as per security/commoncap.c) */
  #define PR_GET_SECUREBITS 27
  #define PR_SET_SECUREBITS 28

  /*
   * Get/set the timerslack as used by poll/select/nanosleep
   * A value of 0 means "use default"
   */
  #define PR_SET_TIMERSLACK 29
  #define PR_GET_TIMERSLACK 30

  #define PR_TASK_PERF_EVENTS_DISABLE		31
  #define PR_TASK_PERF_EVENTS_ENABLE		32

  /*
   * Set early/late kill mode for hwpoison memory corruption.
   * This influences when the process gets killed on a memory corruption.
   */

  #define PR_MCE_KILL	33

  # define PR_MCE_KILL_CLEAR   0
  # define PR_MCE_KILL_SET     1
  
  # define PR_MCE_KILL_LATE    0
  # define PR_MCE_KILL_EARLY   1
  # define PR_MCE_KILL_DEFAULT 2
  
  #define PR_MCE_KILL_GET 34

  /*
   * Tune up process memory map specifics.
   */
  #define PR_SET_MM		35
  # define PR_SET_MM_START_CODE		1
  # define PR_SET_MM_END_CODE		2
  # define PR_SET_MM_START_DATA		3
  # define PR_SET_MM_END_DATA		4
  # define PR_SET_MM_START_STACK		5
  # define PR_SET_MM_START_BRK		6
  # define PR_SET_MM_BRK			7

  #endif /* _LINUX_PRCTL_H */