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

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.

       If persona is not 0xffffffff, then personality() sets the caller's exe‐
       cution domain to the value specified by persona.	 Specifying persona as
       0xffffffff  provides  a	way  of retrieving the current persona without
       changing it.

       A list of the available execution domains can be found in  <sys/person‐
       ality.h>.

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 3.65 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/.

Linux				  2014-04-15			PERSONALITY(2)

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