PERSONALITY Section: Linux Programmer's Manual (2) Updated: 22 July 2025 Index   NAME personality - set the process execution domain   SYNOPSIS 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. personality will make the execution domain referenced by persona the new execution domain of the current process.   RETURN VALUE On success, persona is made the new execution domain and the previous persona is returned. On error, -1 is returned, and errno is set appropriately.   ERRORS EINVAL persona does not refer to a valid execution domain.   FILES /usr/include/linux/personality.h   CONFORMING TO personality is Linux-specific and should not be used in programs intended to be portable.   Index NAME SYNOPSIS DESCRIPTION RETURN VALUE ERRORS FILES CONFORMING TO This document was created by using the manual pages. Time: 11:56:06 GMT, March 24, 2025