1#ifndef _LINUX_PRCTL_H
  2#define _LINUX_PRCTL_H
  3
  4/* Values to pass as first argument to prctl() */
  5
  6#define PR_SET_PDEATHSIG  1  /* Second arg is a signal */
  7#define PR_GET_PDEATHSIG  2  /* Second arg is a ptr to return the signal */
  8
  9/* Get/set current->mm->dumpable */
 10#define PR_GET_DUMPABLE   3
 11#define PR_SET_DUMPABLE   4
 12
 13/* Get/set unaligned access control bits (if meaningful) */
 14#define PR_GET_UNALIGN	  5
 15#define PR_SET_UNALIGN	  6
 16# define PR_UNALIGN_NOPRINT	1	/* silently fix up unaligned user accesses */
 17# define PR_UNALIGN_SIGBUS	2	/* generate SIGBUS on unaligned user access */
 18
 19/* Get/set whether or not to drop capabilities on setuid() away from
 20 * uid 0 (as per security/commoncap.c) */
 21#define PR_GET_KEEPCAPS   7
 22#define PR_SET_KEEPCAPS   8
 23
 24/* Get/set floating-point emulation control bits (if meaningful) */
 25#define PR_GET_FPEMU  9
 26#define PR_SET_FPEMU 10
 27# define PR_FPEMU_NOPRINT	1	/* silently emulate fp operations accesses */
 28# define PR_FPEMU_SIGFPE	2	/* don't emulate fp operations, send SIGFPE instead */
 29
 30/* Get/set floating-point exception mode (if meaningful) */
 31#define PR_GET_FPEXC	11
 32#define PR_SET_FPEXC	12
 33# define PR_FP_EXC_SW_ENABLE	0x80	/* Use FPEXC for FP exception enables */
 34# define PR_FP_EXC_DIV		0x010000	/* floating point divide by zero */
 35# define PR_FP_EXC_OVF		0x020000	/* floating point overflow */
 36# define PR_FP_EXC_UND		0x040000	/* floating point underflow */
 37# define PR_FP_EXC_RES		0x080000	/* floating point inexact result */
 38# define PR_FP_EXC_INV		0x100000	/* floating point invalid operation */
 39# define PR_FP_EXC_DISABLED	0	/* FP exceptions disabled */
 40# define PR_FP_EXC_NONRECOV	1	/* async non-recoverable exc. mode */
 41# define PR_FP_EXC_ASYNC	2	/* async recoverable exception mode */
 42# define PR_FP_EXC_PRECISE	3	/* precise exception mode */
 43
 44/* Get/set whether we use statistical process timing or accurate timestamp
 45 * based process timing */
 46#define PR_GET_TIMING   13
 47#define PR_SET_TIMING   14
 48# define PR_TIMING_STATISTICAL  0       /* Normal, traditional,
 49                                                   statistical process timing */
 50# define PR_TIMING_TIMESTAMP    1       /* Accurate timestamp based
 51                                                   process timing */
 52
 53#define PR_SET_NAME    15		/* Set process name */
 54#define PR_GET_NAME    16		/* Get process name */
 55
 56/* Get/set process endian */
 57#define PR_GET_ENDIAN	19
 58#define PR_SET_ENDIAN	20
 59# define PR_ENDIAN_BIG		0
 60# define PR_ENDIAN_LITTLE	1	/* True little endian mode */
 61# define PR_ENDIAN_PPC_LITTLE	2	/* "PowerPC" pseudo little endian */
 62
 63/* Get/set process seccomp mode */
 64#define PR_GET_SECCOMP	21
 65#define PR_SET_SECCOMP	22
 66
 67/* Get/set the capability bounding set (as per security/commoncap.c) */
 68#define PR_CAPBSET_READ 23
 69#define PR_CAPBSET_DROP 24
 70
 71/* Get/set the process' ability to use the timestamp counter instruction */
 72#define PR_GET_TSC 25
 73#define PR_SET_TSC 26
 74# define PR_TSC_ENABLE		1	/* allow the use of the timestamp counter */
 75# define PR_TSC_SIGSEGV		2	/* throw a SIGSEGV instead of reading the TSC */
 76
 77/* Get/set securebits (as per security/commoncap.c) */
 78#define PR_GET_SECUREBITS 27
 79#define PR_SET_SECUREBITS 28
 80
 81/*
 82 * Get/set the timerslack as used by poll/select/nanosleep
 83 * A value of 0 means "use default"
 84 */
 85#define PR_SET_TIMERSLACK 29
 86#define PR_GET_TIMERSLACK 30
 87
 88#define PR_TASK_PERF_EVENTS_DISABLE		31
 89#define PR_TASK_PERF_EVENTS_ENABLE		32
 90
 91/*
 92 * Set early/late kill mode for hwpoison memory corruption.
 93 * This influences when the process gets killed on a memory corruption.
 94 */
 95#define PR_MCE_KILL	33
 96# define PR_MCE_KILL_CLEAR   0
 97# define PR_MCE_KILL_SET     1
 98
 99# define PR_MCE_KILL_LATE    0
100# define PR_MCE_KILL_EARLY   1
101# define PR_MCE_KILL_DEFAULT 2
102
103#define PR_MCE_KILL_GET 34
104
105#endif /* _LINUX_PRCTL_H */