mirror of
https://github.com/linuxkit/linuxkit.git
synced 2025-07-19 01:06:27 +00:00
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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