NAME

       personality - set the process execution domain

SYNOPSIS

       #include <sys/personality.h>

       int personality(unsigned long persona);

DESCRIPTION

       Linux  supports  different  execution  domains, or personalities, for each process.  Among
       other things, execution domains tell Linux how to map signal numbers into signal  actions.
       The  execution domain system allows Linux to provide limited support for binaries compiled
       under other UNIX-like operating systems.

       This function will return  the  current  personality()  when  persona  equals  0xffffffff.
       Otherwise,  it  will  make  the  execution  domain referenced by persona the new execution
       domain of the calling process.

RETURN VALUE

       On success, the previous persona is returned.  On error, -1 is returned, and errno is  set
       appropriately.

ERRORS

       EINVAL The kernel was unable to change the personality.

CONFORMING TO

       personality()  is  Linux-specific  and  should  not  be  used  in  programs intended to be
       portable.

COLOPHON

       This page is part of release 3.54 of the Linux man-pages project.  A  description  of  the
       project,     and    information    about    reporting    bugs,    can    be    found    at
       http://www.kernel.org/doc/man-pages/.