From 79a3ad2b9186d2a75685662c013ebeb8cb5ab69a Mon Sep 17 00:00:00 2001
From: imp <imp@FreeBSD.org>
Date: Fri, 26 Jun 2020 22:05:23 +0000
Subject: [PATCH] Chroot actually appeared in 7th Edition Unix.

Chroot appeared during the development of 7th edition Unix. The FreeBSD jail
documents, incorrectly, that Bill Joy added this to 4.2BSD on 18 March
1982. That was when Bill Joy converted from a statically coded system call glue
to dynamically generated assembler. Chroot was present in 32V, 3BSD, 4.0BSD, 4.1BSD
and 4.1cBSD well in advance of this. Kirk McKusick agrees with this analysis.

See also:
	V7: https://minnie.tuhs.org/cgi-bin/utree.pl?file=V7/usr/src/libc/sys/chroot.s
	32V: https://minnie.tuhs.org/cgi-bin/utree.pl?file=32V/usr/src/libc/sys/chroot.s
	3BSD: https://minnie.tuhs.org/cgi-bin/utree.pl?file=3BSD/usr/src/libc/sys/chroot.s
	4BSD: https://minnie.tuhs.org/cgi-bin/utree.pl?file=4BSD/usr/src/libc/sys/chroot.s
	4.1cBSD: https://minnie.tuhs.org/cgi-bin/utree.pl?file=4.1cBSD/usr/src/libc/sys/chroot.s

The 6th and earlier editions do not have this system call, nor do they have
anything named chroot in the trees available from TUHS.

Reviewed by: allanjude@
Differential Revision: https://reviews.freebsd.org/D25475
---
 lib/libc/sys/chroot.2 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/libc/sys/chroot.2 b/lib/libc/sys/chroot.2
index 4fd2c40e634d..e72ae172951b 100644
--- a/lib/libc/sys/chroot.2
+++ b/lib/libc/sys/chroot.2
@@ -28,7 +28,7 @@
 .\"     @(#)chroot.2	8.1 (Berkeley) 6/4/93
 .\" $FreeBSD$
 .\"
-.Dd March 30, 2020
+.Dd June 26, 2020
 .Dt CHROOT 2
 .Os
 .Sh NAME
@@ -131,7 +131,7 @@ Corrupted data was detected while reading from the file system.
 The
 .Fn chroot
 system call appeared in
-.Bx 4.2 .
+.At v7 .
 It was marked as
 .Dq legacy
 in