相关函数

```c
/* 控制进程的执行
 * option : 对进程的操作
 *	PR_CAP_AMBIENT - 47
 *	PR_CAPBSET_READ - 23
 *	PR_CAPBSET_DROP - 24
 *	PR_SET_CHILD_SUBREAPER - 36
 *	PR_GET_CHILD_SUBREAPER - 37
 *	PR_SET_DUMPABLE - 4
 *	PR_GET_DUMPABLE - 3
 *	PR_SET_ENDIAN - 20
 *	PR_GET_ENDIAN - 19
 *	PR_SET_FP_MODE - 45
 *	PR_GET_FP_MODE - 46
 *	PR_SET_FPEMU - 10
 *	PR_GET_FPEMU - 9
 *	PR_SET_FPEXC - 12
 *	PR_GET_FPEXC - 11
 *	PR_SET_KEEPCAPS - 8
 *	PR_GET_KEEPCAPS - 7
 *	PR_MCE_KILL - 33
 *	PR_MCE_KILL_GET - 34
 *	PR_SET_MM - 35
 *	PR_MPX_ENABLE_MANAGEMENT - 43
 *	PR_MPX_DISABLE_MANAGEMENT - 44
 *	PR_SET_NAME - 15
 *	PR_GET_NAME - 16
 *	PR_SET_NO_NEW_PRIVS - 38
 *	PR_GET_NO_NEW_PRIVS - 39
 *	PR_SET_PDEATHSIG - 1
 *	PR_GET_PDEATHSIG - 2
 *	PR_SET_PTRACER - 0x59616d61
 *	PR_SET_SECCOMP - 22
 *	PR_GET_SECCOMP - 21
 *	PR_SET_SECUREBITS - 28
 *	PR_GET_SECUREBITS - 27
 *	PR_SET_THP_DISABLE - 41
 *	PR_GET_THP_DISABLE - 42
 *	PR_TASK_PERF_EVENTS_DISABLE - 31
 *	PR_TASK_PERF_EVENTS_ENABLE - 32
 *	PR_GET_TID_ADDRESS - 40
 *	PR_SET_TIMERSLACK - 29
 *	PR_GET_TIMERSLACK - 30
 *	PR_SET_TIMING - 14
 *	PR_GET_TIMING - 13
 *	PR_SET_TSC - 26
 *	PR_GET_TSC - 25
 *	PR_SET_UNALIGN - 6
 *	PR_GET_UNALIGN - 5
 */
int prctl(int option, unsigned long arg2, unsigned long arg3,
          unsigned long arg4, unsigned long arg5);
```

