document necessity for sysctl to enable compat code. ok deraadt@

10 files changed, 37 insertions, 18 deletions

diff --git a/sbin/sysctl/sysctl.8 b/sbin/sysctl/sysctl.8
index a32c266acea..c856c578b4d 100644
--- a/sbin/sysctl/sysctl.8
+++ b/sbin/sysctl/sysctl.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: sysctl.8,v 1.105 2003/07/08 18:50:40 jmc Exp $
+.\"	$OpenBSD: sysctl.8,v 1.106 2003/08/23 19:26:25 tedu Exp $
 .\"	$NetBSD: sysctl.8,v 1.4 1995/09/30 07:12:49 thorpej Exp $
 .\"
 .\" Copyright (c) 1993
@@ -169,6 +169,8 @@ privilege can change the value.
 .It kern.shminfo.shmall	integer	yes
 .It kern.watchdog.period	integer	yes
 .It kern.watchdog.auto	integer	yes
+.It kern.emul.nemuls	integer	no
+.It kern.emul.other	integer	yes
 .It vm.vmmeter	struct	no
 .It vm.loadavg	struct	no
 .It vm.psstrings	struct	no
diff --git a/share/man/man8/compat_bsdos.8 b/share/man/man8/compat_bsdos.8
index 2ebaf15ecb6..7fd101b2411 100644
--- a/share/man/man8/compat_bsdos.8
+++ b/share/man/man8/compat_bsdos.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: compat_bsdos.8,v 1.8 2003/06/04 04:11:37 deraadt Exp $
+.\"	$OpenBSD: compat_bsdos.8,v 1.9 2003/08/23 19:26:25 tedu Exp $
 .\"
 .\" Copyright (c) 1997, Jason Downs.  All rights reserved.
 .\"
@@ -39,7 +39,9 @@ supported are proprietary extensions made to the BSDI kernel.
 To activate the BSDI compatibility feature, the kernel must be compiled
 with the
 .Nm COMPAT_BSDOS
-option enabled.
+option and the kern.emul.bsdos
+.Xr sysctl 8
+enabled.
 .Pp
 .Nm COMPAT_BSDOS
 follows the standard
diff --git a/share/man/man8/compat_freebsd.8 b/share/man/man8/compat_freebsd.8
index 06a3dbbfed8..6d8844f5ce5 100644
--- a/share/man/man8/compat_freebsd.8
+++ b/share/man/man8/compat_freebsd.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: compat_freebsd.8,v 1.15 2003/08/06 12:06:55 jmc Exp $
+.\"	$OpenBSD: compat_freebsd.8,v 1.16 2003/08/23 19:26:25 tedu Exp $
 .\"	$NetBSD: compat_linux.8,v 1.1 1995/03/05 23:30:36 fvdl Exp $
 .\"
 .\" Copyright (c) 1995 Frank van der Linden
@@ -53,7 +53,9 @@ The
 compatibility feature is active for kernels compiled
 with the
 .Nm COMPAT_FREEBSD
-option enabled.
+option and the kern.emul.freebsd
+.Xr sysctl 8
+enabled.
 .Pp
 A lot of programs are dynamically linked.
 This means that the
diff --git a/share/man/man8/compat_hpux.8 b/share/man/man8/compat_hpux.8
index 3af02c56ee1..d4bf336a516 100644
--- a/share/man/man8/compat_hpux.8
+++ b/share/man/man8/compat_hpux.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: compat_hpux.8,v 1.5 2003/08/06 12:06:55 jmc Exp $
+.\"	$OpenBSD: compat_hpux.8,v 1.6 2003/08/23 19:26:25 tedu Exp $
 .\"	$NetBSD: compat_hpux.8,v 1.2 2001/12/16 23:47:19 wiz Exp $
 .\"     from: compat_linux.8,v 1.23 2001/10/07 10:12:05 mbw Exp
 .\"
@@ -50,7 +50,9 @@ for kernels compiled with the
 .Nm COMPAT_HPUX
 and
 .Nm COMPAT_M68K4K
-options enabled.
+options and the kern.emul.hpux
+.Xr sysctl 8
+enabled.
 HP-UX for m68k uses 4 KB page sizes, and
 .Ox
 for all m68k platforms now uses 8 KB page sizes.
diff --git a/share/man/man8/compat_ibcs2.8 b/share/man/man8/compat_ibcs2.8
index 9798c19a3ee..e78ed1807c6 100644
--- a/share/man/man8/compat_ibcs2.8
+++ b/share/man/man8/compat_ibcs2.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: compat_ibcs2.8,v 1.13 2003/08/06 12:06:55 jmc Exp $
+.\"	$OpenBSD: compat_ibcs2.8,v 1.14 2003/08/23 19:26:25 tedu Exp $
 .\"
 .\" Copyright (c) 1998 Scott Bartram
 .\" Copyright (c) 1995 Frank van der Linden
@@ -47,6 +47,8 @@ Binaries are supported from SCO UNIX and other systems derived from UNIX
 System V Release 3.
 iBCS2 support is only well tested using SCO binaries.
 XENIX binaries are also supported although not as well tested.
+This option is controlled by the kern.emul.ibcs2
+.Xr sysctl 8 .
 SVR4 binaries are supported by the
 .Nm COMPAT_SVR4
 option.
diff --git a/share/man/man8/compat_linux.8 b/share/man/man8/compat_linux.8
index 0a309d5a6ea..ec49af29974 100644
--- a/share/man/man8/compat_linux.8
+++ b/share/man/man8/compat_linux.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: compat_linux.8,v 1.30 2003/08/06 12:06:55 jmc Exp $
+.\"	$OpenBSD: compat_linux.8,v 1.31 2003/08/23 19:26:25 tedu Exp $
 .\"	$NetBSD: compat_linux.8,v 1.2 1995/10/16 20:17:59 fvdl Exp $
 .\"
 .\" Copyright (c) 1995 Frank van der Linden
@@ -55,7 +55,9 @@ filesystem), and i386-specific calls, such as enabling virtual 8086 mode.
 The Linux compatibility feature is active
 for kernels compiled with the
 .Nm COMPAT_LINUX
-option enabled.
+option and kern.emul.linux
+.Xr sysctl 8
+enabled.
 .Pp
 A lot of programs are dynamically linked.
 This means that the Linux shared libraries that the programs depend on
diff --git a/share/man/man8/compat_osf1.8 b/share/man/man8/compat_osf1.8
index 14dc6ae59b1..0b1a354d3f3 100644
--- a/share/man/man8/compat_osf1.8
+++ b/share/man/man8/compat_osf1.8
@@ -1,4 +1,4 @@
-.\" $OpenBSD: compat_osf1.8,v 1.5 2003/08/06 12:06:55 jmc Exp $
+.\" $OpenBSD: compat_osf1.8,v 1.6 2003/08/23 19:26:25 tedu Exp $
 .\" $NetBSD: compat_osf1.8,v 1.8 2002/01/14 13:50:43 wiz Exp $
 .\"
 .\" Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -50,8 +50,9 @@ libraries.
 Programs that make direct MACH system calls will not work.
 The OSF/1 compatibility feature is active for kernels compiled with the
 .Nm COMPAT_OSF1
-option enabled (see
-.Xr options 4 ) .
+option and kern.emul.osf1
+.Xr sysctl 8
+enabled.
 .Pp
 To run dynamically linked programs, the OSF/1 shared libraries,
 runtime linker, and certain configuration files found in
diff --git a/share/man/man8/compat_sunos.8 b/share/man/man8/compat_sunos.8
index 51b74eb53bf..5103d1fedee 100644
--- a/share/man/man8/compat_sunos.8
+++ b/share/man/man8/compat_sunos.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: compat_sunos.8,v 1.15 2003/06/26 20:12:25 jmc Exp $
+.\"	$OpenBSD: compat_sunos.8,v 1.16 2003/08/23 19:26:25 tedu Exp $
 .\"	$NetBSD: compat_sunos.8,v 1.6 1995/06/11 23:05:17 pk Exp $
 .\"
 .\" Copyright (c) 1994 Theo de Raadt
@@ -39,7 +39,9 @@ Most executables will work.
 The SunOS compatibility feature is active
 for kernels compiled with the
 .Nm COMPAT_SUNOS
-option enabled.
+option and kern.emul.sunos
+.Xr sysctl 8
+enabled.
 .Pp
 Compatibility with SunOS version 5 and later, better known as Solaris,
 is
diff --git a/share/man/man8/compat_svr4.8 b/share/man/man8/compat_svr4.8
index 40b70179291..f49e5d7649f 100644
--- a/share/man/man8/compat_svr4.8
+++ b/share/man/man8/compat_svr4.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: compat_svr4.8,v 1.14 2003/07/21 12:43:42 jmc Exp $
+.\"	$OpenBSD: compat_svr4.8,v 1.15 2003/08/23 19:26:25 tedu Exp $
 .\"	$NetBSD: compat_svr4.8,v 1.1 1996/07/06 17:14:50 christos Exp $
 .\"
 .\" Copyright (c) 1996 Christos Zoulas
@@ -58,7 +58,9 @@ filesystem
 The SVR4 compatibility feature is active
 for kernels compiled with the
 .Nm COMPAT_SVR4
-option enabled.
+option and kern.emul.svr4
+.Xr sysctl 8
+enabled.
 .Pp
 Most SVR4 programs are dynamically linked.
 This means that the shared libraries that the programs depend on
diff --git a/share/man/man8/compat_ultrix.8 b/share/man/man8/compat_ultrix.8
index dc2f8b7393b..10f3a2b8622 100644
--- a/share/man/man8/compat_ultrix.8
+++ b/share/man/man8/compat_ultrix.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: compat_ultrix.8,v 1.15 2003/07/21 12:46:47 jmc Exp $
+.\"	$OpenBSD: compat_ultrix.8,v 1.16 2003/08/23 19:26:25 tedu Exp $
 .\"
 .\" Copyright (c) 1997 Jonathan Stone
 .\" All rights reserved.
@@ -42,6 +42,8 @@ ULTRIX executables, respectively.
 However, the user is responsible for
 the legal issues of ensuring that they have a right to use any ULTRIX
 binaries on their machine.
+Emulation is controlled by the kern.emul.ultrix
+.Xr sysctl 8 .
 .Pp
 Most executables will work.
 The exceptions include programs that use