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 execution 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/personality.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.

VERSIONS

       This system call first appeared in Linux 1.1.20; library support was added in glibc 2.3.

CONFORMING TO

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

SEE ALSO

       setarch(8)

COLOPHON

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