PERSONALITY(2)      Linux Programmer's Manual      PERSONALITY(2)

NAME
       personality - set the process execution domain

SYNOPSIS
       long personality(unsigned long persona);

DESCRIPTION
       Linux  supports different execution domains, or personali­
       ties, 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  pro­
       vide  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 current 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.

FILES
       /usr/include/linux/personality.h

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

Linux 2.0                   2003-01-01             PERSONALITY(2)