image-prelink: remove assumption of sysconfdir presence

If sysconfdir is not present in the image filesystem then the temporary
creation of a prelink.conf will fail. Fix this by creating sysconfdir
temporarily if needed beforehand and then remove any directories that
were created afterwards.

fixes: OpenXT OXT-1751

Signed-off-by: Christopher Clark <christopher.w.clark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 17 insertions, 0 deletions

diff --git a/meta/classes/image-prelink.bbclass b/meta/classes/image-prelink.bbclass
index 04dd57c940..ebf6e6d7ee 100644
--- a/meta/classes/image-prelink.bbclass
+++ b/meta/classes/image-prelink.bbclass
@@ -17,6 +17,16 @@ prelink_image () {
 	pre_prelink_size=`du -ks ${IMAGE_ROOTFS} | awk '{size = $1 ; print size }'`
 	echo "Size before prelinking $pre_prelink_size."
 
+	# The filesystem may not contain sysconfdir so establish what is present
+	# to enable cleanup after temporary creation of sysconfdir if needed
+	presentdir="${IMAGE_ROOTFS}${sysconfdir}"
+	while [ "${IMAGE_ROOTFS}" != "${presentdir}" ] ; do
+		[ ! -d "${presentdir}" ] || break
+		presentdir=`dirname "${presentdir}"`
+	done
+
+	mkdir -p "${IMAGE_ROOTFS}${sysconfdir}"
+
 	# We need a prelink conf on the filesystem, add one if it's missing
 	if [ ! -e ${IMAGE_ROOTFS}${sysconfdir}/prelink.conf ]; then
 		cp ${STAGING_ETCDIR_NATIVE}/prelink.conf \
@@ -59,6 +69,13 @@ prelink_image () {
 		rm $ldsoconf
 	fi
 
+	# Remove any directories temporarily created for sysconfdir
+	cleanupdir="${IMAGE_ROOTFS}${sysconfdir}"
+	while [ "${presentdir}" != "${cleanupdir}" ] ; do
+		rmdir "${cleanupdir}"
+		cleanupdir=`dirname ${cleanupdir}`
+	done
+
 	pre_prelink_size=`du -ks ${IMAGE_ROOTFS} | awk '{size = $1 ; print size }'`
 	echo "Size after prelinking $pre_prelink_size."
 }