update kernel build

build kernel/modules in the hyperstart-dev:latest container
remove build/modules/ directroy and add modules.tar instead

Signed-off-by: Lai Jiangshan <[email protected]>

Makefile.am

@@ -4,3 +4,5 @@ initrd-local:
 	@echo finish make initrd
 cbfs-local:
 	@echo finish make cbfs
+kernel-local:
+	@echo finish make kernel

build/Dockerfile

@@ -0,0 +1,29 @@
+FROM centos:7
+MAINTAINER Hyper Developers <[email protected]>
+
+RUN yum install -y patch gcc ncurses-devel make openssl-devel bc
+
+ENV KERNEL_VERSION 4.4.7
+ENV LOCALVERSION -hyper
+ENV KERNEL_RELEASE ${KERNEL_VERSION}${LOCALVERSION}
+
+ENV KBUILD_BUILD_USER    dev
+ENV KBUILD_BUILD_HOST    hyper.sh
+ENV KBUILD_BUILD_VERSION 1
+
+RUN mkdir /root/build/ && mkdir /root/build/result/
+RUN curl -fSL https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-${KERNEL_VERSION}.tar.gz | tar -zx -C /root/build
+
+COPY kernel_config /root/build/linux-${KERNEL_VERSION}/.config
+COPY kernel_patch/ /root/build/kernel_patch/
+
+RUN cd /root/build/linux-${KERNEL_VERSION}/ && for patch in /root/build/kernel_patch/*.patch; do patch -p1 <$patch || exit 1; done
+RUN cd /root/build/linux-${KERNEL_VERSION}/ && make silentoldconfig && make -j 8
+
+# install to /root/build/result/ so that we can get them from it
+RUN cp /root/build/linux-${KERNEL_VERSION}/arch/x86_64/boot/bzImage /root/build/result/kernel
+RUN mkdir /root/build/result/modules &&\
+    cd /root/build/linux-${KERNEL_VERSION}/ && make modules_install INSTALL_MOD_PATH="/root/build/result/modules" &&\
+    cd /root/build/result/modules/lib/modules/ && rm -f ${KERNEL_RELEASE}/{build,source} &&\
+    tar -cf /root/build/result/modules.tar ${KERNEL_RELEASE}/ && rm -rf /root/build/result/modules
+RUN cp /root/build/linux-${KERNEL_VERSION}/.config /root/build/result/kernel_config

build/Makefile.am

@@ -10,3 +10,8 @@ endif
 
 cbfs-local:
 	bash ./make-initrd.sh cbfs
+
+kernel-local:
+	hyperctl build -t hyperstart-dev:latest .
+	hyperctl run --rm hyperstart-dev:latest cat /root/build/result/kernel >kernel.new && mv -f kernel.new kernel
+	hyperctl run --rm hyperstart-dev:latest cat /root/build/result/modules.tar >modules.tar

build/kernel_config

@@ -50,7 +50,7 @@ CONFIG_BUILDTIME_EXTABLE_SORT=y
 CONFIG_INIT_ENV_ARG_LIMIT=32
 CONFIG_CROSS_COMPILE=""
 # CONFIG_COMPILE_TEST is not set
-CONFIG_LOCALVERSION="-hyper"
+CONFIG_LOCALVERSION=""
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_HAVE_KERNEL_GZIP=y
 CONFIG_HAVE_KERNEL_BZIP2=y

build/make-initrd.sh

@@ -5,7 +5,7 @@ mkdir -p root/lib
 
 cp ../src/init ./root
 cp busybox ./root
-cp modules -R ./root/lib/
+tar -xf modules.tar -C ./root/lib/
 
 ldd ./root/init | while read line
 do