mirror of
https://github.com/linuxkit/linuxkit.git
synced 2025-10-06 06:46:49 +00:00
a53e251908
We were pointing to the old mobylinux docker hub repo. Let's update the kernel build to be the new style one. Note that I didn't bump the kernel version or update the patches at all. We should do this soon, but for the purposes of our probational channel PoC, I'm leaving wireguard at the old version for now. Signed-off-by: Tycho Andersen <tycho@docker.com>
74 lines
2.6 KiB
Docker
74 lines
2.6 KiB
Docker
FROM linuxkit/kernel-compile:1b396c221af673757703258159ddc8539843b02b@sha256:6b32d205bfc6407568324337b707d195d027328dbfec554428ea93e7b0a8299b AS kernel-build
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ARG KERNEL_VERSION
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ARG KERNEL_SERIES
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ARG DEBUG
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ENV KERNEL_SOURCE=https://www.kernel.org/pub/linux/kernel/v4.x/linux-${KERNEL_VERSION}.tar.xz
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RUN curl -fsSL -o linux-${KERNEL_VERSION}.tar.xz ${KERNEL_SOURCE}
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RUN cat linux-${KERNEL_VERSION}.tar.xz | tar --absolute-names -xJ && mv /linux-${KERNEL_VERSION} /linux
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COPY kernel_config-${KERNEL_SERIES} /linux/arch/x86/configs/x86_64_defconfig
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COPY kernel_config.debug /linux/debug_config
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RUN if [ -n "${DEBUG}" ]; then \
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sed -i 's/CONFIG_PANIC_ON_OOPS=y/# CONFIG_PANIC_ON_OOPS is not set/' /linux/arch/x86/configs/x86_64_defconfig; \
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cat /linux/debug_config >> /linux/arch/x86/configs/x86_64_defconfig; \
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fi
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# Apply local patches
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COPY patches-${KERNEL_SERIES} /patches
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WORKDIR /linux
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RUN set -e && for patch in /patches/*.patch; do \
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echo "Applying $patch"; \
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patch -p1 < "$patch"; \
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done
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RUN mkdir /out
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# Kernel
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RUN make defconfig && \
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make oldconfig && \
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make -j "$(getconf _NPROCESSORS_ONLN)" KCFLAGS="-fno-pie" && \
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cp arch/x86_64/boot/bzImage /out/kernel && \
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cp System.map /out && \
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([ -n "${DEBUG}" ] && cp vmlinux /out || true)
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# Modules
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RUN make INSTALL_MOD_PATH=/tmp/kernel-modules modules_install && \
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( DVER=$(basename $(find /tmp/kernel-modules/lib/modules/ -mindepth 1 -maxdepth 1)) && \
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cd /tmp/kernel-modules/lib/modules/$DVER && \
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rm build source && \
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ln -s /usr/src/linux-headers-$DVER build ) && \
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( cd /tmp/kernel-modules && tar cf /out/kernel.tar lib )
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# Headers (userspace API)
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RUN mkdir -p /tmp/kernel-headers/usr && \
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make INSTALL_HDR_PATH=/tmp/kernel-headers/usr headers_install && \
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( cd /tmp/kernel-headers && tar cf /out/kernel-headers.tar usr )
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# Headers (kernel development)
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RUN DVER=$(basename $(find /tmp/kernel-modules/lib/modules/ -mindepth 1 -maxdepth 1)) && \
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dir=/tmp/usr/src/linux-headers-$DVER && \
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mkdir -p $dir && \
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cp /linux/.config $dir && \
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cp /linux/Module.symvers $dir && \
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find . -path './include/*' -prune -o \
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-path './arch/*/include' -prune -o \
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-path './scripts/*' -prune -o \
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-type f \( -name 'Makefile*' -o -name 'Kconfig*' -o -name 'Kbuild*' -o \
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-name '*.lds' -o -name '*.pl' -o -name '*.sh' \) | \
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tar cf - -T - | (cd $dir; tar xf -) && \
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( cd /tmp && tar cf /out/kernel-dev.tar usr/src )
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RUN printf "KERNEL_SOURCE=${KERNEL_SOURCE}\n" > /out/kernel-source-info
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FROM scratch
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ENTRYPOINT []
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CMD []
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WORKDIR /
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COPY --from=kernel-build /out/* /
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