mirror of https://github.com/mkerrisk/man-pages
84 lines
2.8 KiB
Groff
84 lines
2.8 KiB
Groff
.\" Copyright (C) 1995, Thomas K. Dyas <tdyas@eden.rutgers.edu>
|
|
.\"
|
|
.\" %%%LICENSE_START(VERBATIM)
|
|
.\" Permission is granted to make and distribute verbatim copies of this
|
|
.\" manual provided the copyright notice and this permission notice are
|
|
.\" preserved on all copies.
|
|
.\"
|
|
.\" Permission is granted to copy and distribute modified versions of this
|
|
.\" manual under the conditions for verbatim copying, provided that the
|
|
.\" entire resulting derived work is distributed under the terms of a
|
|
.\" permission notice identical to this one.
|
|
.\"
|
|
.\" Since the Linux kernel and libraries are constantly changing, this
|
|
.\" manual page may be incorrect or out-of-date. The author(s) assume no
|
|
.\" responsibility for errors or omissions, or for damages resulting from
|
|
.\" the use of the information contained herein. The author(s) may not
|
|
.\" have taken the same level of care in the production of this manual,
|
|
.\" which is licensed free of charge, as they might when working
|
|
.\" professionally.
|
|
.\"
|
|
.\" Formatted or processed versions of this manual, if unaccompanied by
|
|
.\" the source, must acknowledge the copyright and authors of this work.
|
|
.\" %%%LICENSE_END
|
|
.\"
|
|
.\" Created Sat Aug 21 1995 Thomas K. Dyas <tdyas@eden.rutgers.edu>
|
|
.\"
|
|
.\" typo corrected, aeb, 950825
|
|
.\" added layout change from joey, 960722
|
|
.\" changed prototype, documented 0xffffffff, aeb, 030101
|
|
.\" Modified 2004-11-03 patch from Martin Schulze <joey@infodrom.org>
|
|
.\"
|
|
.TH PERSONALITY 2 2015-12-28 "Linux" "Linux Programmer's Manual"
|
|
.SH NAME
|
|
personality \- set the process execution domain
|
|
.SH SYNOPSIS
|
|
.B #include <sys/personality.h>
|
|
.sp
|
|
.BI "int personality(unsigned long " persona );
|
|
.SH 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
|
|
.I persona
|
|
is not
|
|
0xffffffff, then
|
|
.BR personality ()
|
|
sets the caller's execution domain to the value specified by
|
|
.IR persona .
|
|
Specifying
|
|
.IR 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
|
|
.IR <sys/personality.h> .
|
|
.SH RETURN VALUE
|
|
On success, the previous
|
|
.I persona
|
|
is returned.
|
|
On error, \-1 is returned, and
|
|
.I errno
|
|
is set appropriately.
|
|
.SH ERRORS
|
|
.TP
|
|
.B EINVAL
|
|
The kernel was unable to change the personality.
|
|
.SH VERSIONS
|
|
This system call first appeared in Linux 1.1.20;
|
|
library support was added in glibc 2.3.
|
|
.\" personality wrapper first appeared in glibc 1.90,
|
|
.\" <sys/personality.h> was added later in 2.2.91.
|
|
.SH CONFORMING TO
|
|
.BR personality ()
|
|
is Linux-specific and should not be used in programs intended to
|
|
be portable.
|
|
.SH SEE ALSO
|
|
.BR setarch (8)
|