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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 3.35 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://man7.org/linux/man-pages/.