multi-kernel.inc: include file to build and deploy multiple kernel and module sets from a single recipe

1 files changed, 42 insertions, 0 deletions

diff --git a/recipes/linux/multi-kernel.inc b/recipes/linux/multi-kernel.inc
new file mode 100644
index 0000000000..f8fd950a85
--- /dev/null
+++ b/recipes/linux/multi-kernel.inc
@@ -0,0 +1,42 @@
+# This .inc file allows you to build and deploy multiple sets of kernel + modules with different defconfigs
+#
+# Note that this include will NOT stage anything nor create packages, since that is virtuall impossible
+# Userspace should be built against the 'regular' kernel
+#
+# The intended usecase is for machines that has mutually exclusive drivers due to e.g. pinmuxing issues.
+# For example the LogicPD omap-l138 experimenter board can have multiple mutually exclusive expansion boards
+# like lcd, ethernet, sound, 20x2 character LCD, etc. To be able to easily test all of those you can use this .inc
+#
+# To make it easier finding the original defconfig from a running kernel, this also forcefully turns on 
+# CONFIG_IKCONFIG_PROC so people can do 'zcat /proc/config.gz' on the target.
+
+require linux.inc
+
+SRC_URI = " \
+           file://configs/"
+
+
+do_compile() {
+	for config in ${WORKDIR}/configs/* ; do
+		cp $config ${WORKDIR}/defconfig
+		echo "CONFIG_IKCONFIG=y" >> ${WORKDIR}/defconfig
+		echo "CONFIG_IKCONFIG_PROC=y" >> ${WORKDIR}/defconfig
+		
+		do_configure
+		kernel_do_compile
+		kernel_do_install
+
+		cp arch/${ARCH}/boot/uImage ${DEPLOY_DIR_IMAGE}/uImage.multi-config-$(basename $config)
+
+		if [ -d "${D}/lib" ]; then
+			fakeroot tar -cvzf ${DEPLOY_DIR_IMAGE}/${MODULES_IMAGE_BASE_NAME}.multi-config-$(basename $config).tgz -C ${D} lib
+		fi
+	done
+}
+
+do_install() {
+	:
+}
+
+
+