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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 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.
CONFORMING TO
personality() is Linux-specific and should not be used in programs intended to be porta‐
ble.
COLOPHON
This page is part of release 3.74 of the Linux man-pages project. A description of the
project, information about reporting bugs, and the latest version of this page, can be
found at http://www.kernel.org/doc/man-pages/.
Linux 2014-04-15 PERSONALITY(2)
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