Initial commit

docker/build-base.Dockerfile

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+FROM --platform=linux/amd64 debian:bookworm AS kernel-build
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+WORKDIR /build
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    bash \
+    bc \
+    bison \
+    build-essential \
+    cpio \
+    curl \
+    file \
+    flex \
+    git \
+    libelf-dev \
+    libssl-dev \
+    make \
+    pahole \
+    perl \
+    python3 \
+    rsync \
+    tar \
+    xz-utils \
+    dwarves \
+    gcc-aarch64-linux-gnu \
+    binutils-aarch64-linux-gnu \
+    libc6-dev-arm64-cross \
+    linux-libc-dev-arm64-cross \
+    u-boot-tools \
+    device-tree-compiler \
+ && rm -rf /var/lib/apt/lists/*
+

docker/fit-build.Dockerfile

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+ARG TAG=dev
+ARG DOCKER_IMAGE_ROOT=monok8s
+FROM --platform=linux/amd64 ${DOCKER_IMAGE_ROOT}/build-base:${TAG} AS build
+
+ARG BUSYBOX_VERSION
+ARG ARCH
+ARG CROSS_COMPILE
+
+WORKDIR /build
+
+RUN test -n "${BUSYBOX_VERSION}" || (echo "Please specify BUSYBOX_VERSION" >&2; exit 1); \
+    test -n "${ARCH}" || (echo "Please specify ARCH" >&2; exit 1); \
+    test -n "${CROSS_COMPILE}" || (echo "Please specify CROSS_COMPILE" >&2; exit 1)
+
+COPY dev/busybox.tar.gz ./
+RUN tar -xf busybox.tar.gz && mv "busybox-${BUSYBOX_VERSION}" busybox
+
+# RUN curl -L https://github.com/mirror/busybox/archive/refs/tags/${BUSYBOX_VERSION}.tar.gz -o busybox.tar.gz \
+#  && tar -xf busybox.tar.gz \
+#  && mv "busybox-${BUSYBOX_VERSION}" busybox
+
+WORKDIR /build/busybox
+
+RUN make ARCH=${ARCH} CROSS_COMPILE=${CROSS_COMPILE} defconfig \
+ && sed -i 's/^# CONFIG_STATIC is not set/CONFIG_STATIC=y/' .config
+RUN make CROSS_COMPILE=${CROSS_COMPILE} -j"$(nproc)"
+RUN make CROSS_COMPILE=${CROSS_COMPILE} CONFIG_PREFIX=/out/initramfs install
+
+WORKDIR /out/initramfs
+
+COPY initramfs/init init
+RUN chmod +x init
+RUN mkdir -p bin sbin etc proc sys dev usr/bin usr/sbin
+RUN find . -print0 | cpio --null -ov --format=newc | gzip -9 > ../initramfs.cpio.gz

docker/itb.Dockerfile

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+ARG TAG=dev
+ARG DOCKER_IMAGE_ROOT=monok8s
+FROM ${DOCKER_IMAGE_ROOT}/kernel-build:${TAG} AS kernel
+FROM ${DOCKER_IMAGE_ROOT}/fit-build:${TAG} AS fit
+
+FROM --platform=linux/amd64 ${DOCKER_IMAGE_ROOT}/build-base:${TAG} AS build
+
+ARG DTB_TARGET
+
+RUN mkdir /image
+WORKDIR /image
+
+COPY --from=kernel /out/kernel/Image.gz ./Image.gz
+COPY --from=kernel /out/kernel/System.map ./
+COPY --from=kernel /out/kernel/.config ./
+COPY --from=fit /out/initramfs.cpio.gz ./
+COPY --from=kernel /out/${DTB_TARGET} ./
+
+COPY ./board.its ./
+
+RUN mkimage -f board.its board.itb
+
+FROM scratch
+COPY --from=build /image/board.itb /board.itb

docker/kernel-build.Dockerfile

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+ARG TAG=dev
+ARG DOCKER_IMAGE_ROOT=monok8s
+FROM --platform=linux/amd64 ${DOCKER_IMAGE_ROOT}/build-base:${TAG}
+
+ARG NXP_VERSION
+ARG ARCH
+ARG CROSS_COMPILE
+
+WORKDIR /build
+
+RUN test -n "${NXP_VERSION}" || (echo "Please specify NXP_VERSION" >&2; exit 1); \
+    test -n "${ARCH}" || (echo "Please specify ARCH" >&2; exit 1); \
+    test -n "${CROSS_COMPILE}" || (echo "Please specify CROSS_COMPILE" >&2; exit 1)
+
+# Dev-only shortcut
+COPY dev/nxplinux.tar.gz ./
+RUN tar -xf nxplinux.tar.gz \
+ && mv "linux-${NXP_VERSION}" nxplinux \
+ && rm -f nxplinux.tar.gz
+
+# Or download directly:
+# RUN curl -L "https://github.com/nxp-qoriq/linux/archive/refs/tags/${NXP_VERSION}.tar.gz" -o nxplinux.tar.gz \
+#  && tar -xf nxplinux.tar.gz \
+#  && mv "linux-${NXP_VERSION}" nxplinux \
+#  && rm -f nxplinux.tar.gz
+
+WORKDIR /build/nxplinux
+
+# NXP tree: use the LSDK defconfig target
+RUN make ARCH="${ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" defconfig lsdk.config
+RUN make ARCH="${ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" -j"$(nproc)"
+
+# artifact collection
+RUN mkdir -p /out/kernel /out/rootfs \
+ && cp -av arch/arm64/boot/Image* /out/kernel/ 2>/dev/null || true \
+ && cp -av arch/arm64/boot/dts /out/kernel/dts 2>/dev/null || true \
+ && cp -av System.map .config /out/kernel/ \
+ && make ARCH=${ARCH} CROSS_COMPILE=${CROSS_COMPILE} modules_install INSTALL_MOD_PATH=/out/rootfs
+
+ARG DTB_TARGET
+
+RUN find /out/kernel -name "${DTB_TARGET}" -exec cp {} /out/ \;
+RUN test -f "/out/${DTB_TARGET}"