[oe-commits] Bruce Ashfield : kernel: fix out of tree module builds

[git at git.openembedded.org]

Module: openembedded-core.git
Branch: master-next
Commit: 4b981e4fd5a4744d0d83053219274296e7785e77
URL:    http://git.openembedded.org/?p=openembedded-core.git&a=commit;h=4b981e4fd5a4744d0d83053219274296e7785e77

Author: Bruce Ashfield <bruce.ashfield at windriver.com>
Date:   Fri Nov 14 14:51:27 2014 -0500

kernel: fix out of tree module builds

With the kernel build optimizations, we no longer copy the source from
the built kernel into the staging dir, since the kernel is unpacked and built
directly from the staging dir.

This means that a few build artifacts need to be restored to allow out of
tree modules to once again build.

Signed-off-by: Bruce Ashfield <bruce.ashfield at windriver.com>
Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>

---

 meta/classes/kernel.bbclass | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index bca34f4..6eb87ac 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -223,6 +223,29 @@ kernel_do_install() {
 	#
 
 	echo "${KERNEL_VERSION}" > $kerneldir/kernel-abiversion
+	
+	# Copy files required for module builds
+	cp System.map $kerneldir/System.map-${KERNEL_VERSION}
+	cp Module.symvers $kerneldir/
+	cp .config $kerneldir/
+	mkdir -p $kerneldir/include/config
+	cp include/config/kernel.release $kerneldir/include/config/kernel.release
+
+	# As of Linux kernel version 3.0.1, the clean target removes
+	# arch/powerpc/lib/crtsavres.o which is present in
+	# KBUILD_LDFLAGS_MODULE, making it required to build external modules.
+	if [ ${ARCH} = "powerpc" ]; then
+		mkdir -p $kerneldir/arch/powerpc/lib/
+		cp arch/powerpc/lib/crtsavres.o $kerneldir/arch/powerpc/lib/crtsavres.o
+	fi
+
+	mkdir -p $kerneldir/include/generated/
+	cp -fR include/generated/* $kerneldir/include/generated/
+
+	if [ -d arch/${ARCH}/include/generated ]; then
+		mkdir -p $kerneldir/arch/${ARCH}/include/generated/
+		cp -fR arch/${ARCH}/include/generated/* $kerneldir/arch/${ARCH}/include/generated/
+	fi
 }
 do_install[prefuncs] += "package_get_auto_pr"