busybox: move systemd support to meta-systemd

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>

meta-systemd/meta-oe/recipes-core/busybox/busybox/busybox-klogd.service.in

@@ -0,0 +1,8 @@
+[Unit]
+Description=Kernel Logging Service
+
+[Service]
+ExecStart=@base_sbindir@/klogd -n
+
+[Install]
+WantedBy=multi-user.target

meta-systemd/meta-oe/recipes-core/busybox/busybox/busybox-syslog.service.in

@@ -0,0 +1,13 @@
+[Unit]
+Description=System Logging Service
+Wants=busybox-klogd.service
+
+[Service]
+ExecStartPre=/bin/systemctl stop systemd-kmsg-syslogd.service
+EnvironmentFile=-/etc/default/busybox-syslog
+ExecStart=@base_sbindir@/syslogd -n $OPTIONS
+Sockets=syslog.socket
+
+[Install]
+WantedBy=multi-user.target
+Also=busybox-klogd.service

meta-systemd/meta-oe/recipes-core/busybox/busybox_1.19.4.bbappend

@@ -0,0 +1,23 @@
+inherit systemd
+
+PRINC := "${@int(PRINC) + 1}"
+
+# look for files in the layer first
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+
+SRC_URI += "file://busybox-syslog.service.in \
+            file://busybox-klogd.service.in"
+
+SYSTEMD_PACKAGES = "${PN}-syslog-systemd"
+SYSTEMD_SERVICE_${PN}-syslog-systemd = "busybox-syslog.service"
+
+do_install_append() {
+	install -d ${D}${systemd_unitdir}/system
+	sed 's,@base_sbindir@,${base_sbindir},g' < ${WORKDIR}/busybox-syslog.service.in \
+	     > ${D}${systemd_unitdir}/system/busybox-syslog.service
+	sed 's,@base_sbindir@,${base_sbindir},g' < ${WORKDIR}/busybox-klogd.service.in \
+	     > ${D}${systemd_unitdir}/system/busybox-klogd.service
+
+	ln -sf /dev/null ${D}${systemd_unitdir}/system/syslog.service
+}
+FILES_${PN}-syslog-systemd = "${systemd_unitdir}/system/syslog.service"