Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

CentOS 7.0 - man page for personality (centos section 2)

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

personality - set the process execution domain
#include <sys/personality.h> int personality(unsigned long persona);
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 refer- enced by persona the new execution domain of the calling process.
On success, the previous persona is returned. On error, -1 is returned, and errno is set appropriately.
EINVAL The kernel was unable to change the personality.
personality() is Linux-specific and should not be used in programs intended to be portable.
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at Linux 2003-01-01 PERSONALITY(2)