1 files changed, 27 insertions, 0 deletions
diff --git a/yocto-poky/meta/classes/module-base.bbclass b/yocto-poky/meta/classes/module-base.bbclass
new file mode 100644
index 000000000..8be26c4f5
--- /dev/null
+++ b/yocto-poky/meta/classes/module-base.bbclass
@@ -0,0 +1,27 @@
+inherit kernel-arch
+
+# This is instead of DEPENDS = "virtual/kernel"
+do_configure[depends] += "virtual/kernel:do_shared_workdir"
+
+export OS = "${TARGET_OS}"
+export CROSS_COMPILE = "${TARGET_PREFIX}"
+
+# This points to the build artefacts from the main kernel build
+# such as .config and System.map
+# Confusingly it is not the module build output (which is ${B}) but
+# we didn't pick the name.
+export KBUILD_OUTPUT = "${STAGING_KERNEL_BUILDDIR}"
+
+export KERNEL_VERSION = "${@base_read_file('${STAGING_KERNEL_BUILDDIR}/kernel-abiversion')}"
+KERNEL_OBJECT_SUFFIX = ".ko"
+
+# kernel modules are generally machine specific
+PACKAGE_ARCH = "${MACHINE_ARCH}"
+
+# Function to ensure the kernel scripts are created. Expected to
+# be called before do_compile. See module.bbclass for an exmaple.
+do_make_scripts() {
+	unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS 
+	make CC="${KERNEL_CC}" LD="${KERNEL_LD}" AR="${KERNEL_AR}" \
+	           -C ${STAGING_KERNEL_DIR} O=${STAGING_KERNEL_BUILDDIR} scripts
+}