PR_SET_NAME, PR_GET_NAME - operations on a process or thread

PR_SET_NAME
              Set the name of the calling thread, using the value in the location pointed to by name.

              The  name  can  be up to 16 bytes long, including the terminating null byte.  If the length of the
              string, including the terminating null byte, exceeds 16 bytes, the string is silently truncated.

       PR_GET_NAME (since Linux 2.6.11)
              Return the name of the calling thread, in the buffer pointed to by name.  The returned string will
              be null-terminated.

       This  is  the  same  attribute  that  can  be  set  via   pthread_setname_np(3)   and   retrieved   using
       pthread_getname_np(3).

EFAULTname is an invalid address.

/proc/self/task/tid/comm
              The attribute is likewise accessible via this file (see proc_pid_comm(5)), where tid is the thread
              ID of the calling thread, as returned by gettid(2).

PR_SET_NAME
              Linux 2.6.9.

       PR_GET_NAME
              Linux 2.6.11.

       Standard C library (libc, -lc)

       PR_SET_NAME, PR_GET_NAME - operations on a process or thread

       On success, 0 is returned.  On error, -1 is returned, and errno is set to indicate the error.

prctl(2), pthread_setname_np(3), pthread_getname_np(3), proc_pid_comm(5)

Linux man-pages 6.9.1                              2024-06-02                                PR_SET_NAME(2const)

       Linux.

#include<linux/prctl.h>  /* Definition of PR_* constants */
       #include<sys/prctl.h>intprctl(PR_SET_NAME,charname[16]);intprctl(PR_GET_NAME,constcharname[16]);