Move the SysV IPC stuff out of the 'abi' rc script, into a new one:

'sysvipc' - it has nothing to do with ABIs, and I'd like to later
rename 'abi' to 'linux', which better describes its purpose and also
matches the rcvar name.

Reviewed by:	emaste
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D21615

libexec/rc/rc.conf

@@ -638,8 +638,6 @@ accounting_enable="NO"	# Turn on process accounting (or NO).
 firstboot_sentinel="/firstboot"	# Scripts with "firstboot" keyword are run if
 			# this file exists.  Should be on a R/W filesystem so
 			# the file can be deleted after the boot completes.
-
-# Emulation/compatibility services provided by /etc/rc.d/abi
 sysvipc_enable="NO"	# Load System V IPC primitives at startup (or NO).
 linux_enable="NO"	# Linux binary compatibility loaded at startup (or NO).
 clear_tmp_enable="NO"	# Clear /tmp at startup.

libexec/rc/rc.d/Makefile

@@ -107,6 +107,7 @@ CONFS=	DAEMON \
 	swaplate \
 	sysctl \
 	syslogd \
+	sysvipc \
 	tmp \
 	ugidfw \
 	${_utx} \

libexec/rc/rc.d/SERVERS

@@ -4,7 +4,7 @@
 #
 
 # PROVIDE: SERVERS
-# REQUIRE: mountcritremote abi ldconfig savecore watchdogd
+# REQUIRE: mountcritremote sysvipc abi ldconfig savecore watchdogd
 
 #	This is a dummy dependency, for early-start servers relying on
 #	some basic configuration.

libexec/rc/rc.d/abi

@@ -14,14 +14,6 @@ desc="Enable foreign ABIs"
 start_cmd="${name}_start"
 stop_cmd=":"
 
-sysv_start()
-{
-	echo -n ' sysvipc'
-	load_kld sysvmsg
-	load_kld sysvsem
-	load_kld sysvshm
-}
-
 linux_start()
 {
 	local _tmpdir
@@ -48,12 +40,11 @@ abi_start()
 	local _echostop
 
 	_echostop=
-	if checkyesno sysvipc_enable || checkyesno linux_enable; then
+	if checkyesno linux_enable; then
 		echo -n 'Additional ABI support:'
 		_echostop=yes
 	fi
 
-	checkyesno sysvipc_enable && sysv_start
 	checkyesno linux_enable && linux_start
 
 	[ -n "${_echostop}" ] && echo '.'

libexec/rc/rc.d/localpkg

@@ -4,7 +4,7 @@
 #
 
 # PROVIDE: localpkg
-# REQUIRE: abi
+# REQUIRE: sysvipc abi
 # BEFORE:  securelevel
 # KEYWORD: shutdown
 

libexec/rc/rc.d/sysvipc

@@ -0,0 +1,26 @@
+#!/bin/sh
+#
+# $FreeBSD$
+#
+
+# PROVIDE: sysvipc
+# REQUIRE: archdep
+# KEYWORD: nojail
+
+. /etc/rc.subr
+
+name="sysvipc"
+desc="Load SysV IPC modules"
+rcvar="sysvipc_enable"
+start_cmd="${name}_start"
+stop_cmd=":"
+
+sysvipc_start()
+{
+	load_kld sysvmsg
+	load_kld sysvsem
+	load_kld sysvshm
+}
+
+load_rc_config $name
+run_rc_command "$1"