systemd-serialgetty: change to handle SERIAL_CONSOLES

SERIAL_CONSOLES is now set from SERIAL_CONSOLE if not already set.

This is a little bit gnarly because we have to create a separate service
file for each different baud rate; assume that the first baud rate is
the default, thus preserving the previous behaviour in the event there
is only one baud rate in use.

This change also installs the service file before modifying it in place,
allowing do_install to re-execute properly; additionally the service
file now has the correct permissions (i.e. no execute bit set).

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>

1 files changed, 23 insertions, 22 deletions

diff --git a/meta/recipes-core/systemd/systemd-serialgetty.bb b/meta/recipes-core/systemd/systemd-serialgetty.bb
index 96cbf31470..37c49b12d7 100644
--- a/meta/recipes-core/systemd/systemd-serialgetty.bb
+++ b/meta/recipes-core/systemd/systemd-serialgetty.bb
@@ -8,37 +8,38 @@ SERIAL_CONSOLE ?= "115200 ttyS0"
 
 SRC_URI = "file://serial-getty@.service"
 
-def get_serial_console_value(d, index):
-    c = d.getVar('SERIAL_CONSOLE', True)
-
-    if len(c):
-        return c.split()[index]
-
-    return ""
-
-def get_baudrate(d):
-    return get_serial_console_value(d, 0)
-
-def get_console(d):
-    return get_serial_console_value(d, 1)
-
 do_install() {
-	if [ ! ${@get_baudrate(d)} = "" ]; then
-		sed -i -e s/\@BAUDRATE\@/${@get_baudrate(d)}/g ${WORKDIR}/serial-getty@.service
+	if [ ! -z "${SERIAL_CONSOLES}" ] ; then
+		default_baudrate=`echo "${SERIAL_CONSOLES}" | sed 's/\;.*//'`
 		install -d ${D}${systemd_unitdir}/system/
 		install -d ${D}${sysconfdir}/systemd/system/getty.target.wants/
-		install ${WORKDIR}/serial-getty@.service ${D}${systemd_unitdir}/system/
-
-		# enable the service
-		ln -sf ${systemd_unitdir}/system/serial-getty@.service \
-			${D}${sysconfdir}/systemd/system/getty.target.wants/serial-getty@${@get_console(d)}.service
+		install -m 0644 ${WORKDIR}/serial-getty@.service ${D}${systemd_unitdir}/system/
+		sed -i -e s/\@BAUDRATE\@/$default_baudrate/g ${D}${systemd_unitdir}/system/serial-getty@.service
+
+		tmp="${SERIAL_CONSOLES}"
+		for entry in $tmp ; do
+			baudrate=`echo $entry | sed 's/\;.*//'`
+			ttydev=`echo $entry | sed -e 's/^[0-9]*\;//' -e 's/\;.*//'`
+			if [ "$baudrate" = "$default_baudrate" ] ; then
+				# enable the service
+				ln -sf ${systemd_unitdir}/system/serial-getty@.service \
+					${D}${sysconfdir}/systemd/system/getty.target.wants/serial-getty@$ttydev.service
+			else
+				# install custom service file for the non-default baudrate
+				install -m 0644 ${WORKDIR}/serial-getty@.service ${D}${systemd_unitdir}/system/serial-getty$baudrate@.service
+				sed -i -e s/\@BAUDRATE\@/$baudrate/g ${D}${systemd_unitdir}/system/serial-getty$baudrate@.service
+				# enable the service
+				ln -sf ${systemd_unitdir}/system/serial-getty$baudrate@.service \
+					${D}${sysconfdir}/systemd/system/getty.target.wants/serial-getty$baudrate@$ttydev.service
+			fi
+		done
 	fi
 }
 
 RDEPENDS_${PN} = "systemd"
 
 # This is a machine specific file
-FILES_${PN} = "${systemd_unitdir}/system/serial-getty@.service ${sysconfdir}"
+FILES_${PN} = "${systemd_unitdir}/system/*.service ${sysconfdir}"
 PACKAGE_ARCH = "${MACHINE_ARCH}"
 
 # As this package is tied to systemd, only build it when we're also building systemd.