prctl.h

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#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
# define PR_SET_MM_ARG_START        8
# define PR_SET_MM_ARG_END      9
# define PR_SET_MM_ENV_START        10
# define PR_SET_MM_ENV_END      11
# define PR_SET_MM_AUXV         12
# define PR_SET_MM_EXE_FILE     13

/*
 * Set specific pid that is allowed to ptrace the current task.
 * A value of 0 mean "no process".
 */
#define PR_SET_PTRACER 0x59616d61
# define PR_SET_PTRACER_ANY ((unsigned long)-1)

#define PR_SET_CHILD_SUBREAPER  36
#define PR_GET_CHILD_SUBREAPER  37

/*
 * If no_new_privs is set, then operations that grant new privileges (i.e.
 * execve) will either fail or not grant them.  This affects suid/sgid,
 * file capabilities, and LSMs.
 *
 * Operations that merely manipulate or drop existing privileges (setresuid,
 * capset, etc.) will still work.  Drop those privileges if you want them gone.
 *
 * Changing LSM security domain is considered a new privilege.  So, for example,
 * asking selinux for a specific new context (e.g. with runcon) will result
 * in execve returning -EPERM.
 *
 * See Documentation/prctl/no_new_privs.txt for more details.
 */
#define PR_SET_NO_NEW_PRIVS 38
#define PR_GET_NO_NEW_PRIVS 39

#define PR_GET_TID_ADDRESS  40

#endif /* _LINUX_PRCTL_H */