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