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FROM ubuntu:24.10
# Disable interactive prompts on package installation
ENV DEBIAN_FRONTEND=noninteractive
# Dependencies to get the git sources and go binaries
RUN apt-get update && apt-get install -y --no-install-recommends \
ca-certificates \
curl \
git \
rsync \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
# Get the git sources. If not cached, this takes O(5 minutes).
WORKDIR /git
RUN git config --global advice.detachedHead false
# Linux Kernel: Released 27 Jul 2025
RUN git clone --branch v6.16 --depth 1 https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux
# GNU C library: Released 29 Jan 2025
RUN git clone --branch release/2.41/master --depth 1 https://sourceware.org/git/glibc.git
# Get Go
ENV GOLANG_VERSION=1.24.5
ENV GOLANG_DOWNLOAD_URL=https://golang.org/dl/go$GOLANG_VERSION.linux-amd64.tar.gz
ENV GOLANG_DOWNLOAD_SHA256=10ad9e86233e74c0f6590fe5426895de6bf388964210eac34a6d83f38918ecdc
RUN curl -fsSL "$GOLANG_DOWNLOAD_URL" -o golang.tar.gz \
&& echo "$GOLANG_DOWNLOAD_SHA256 golang.tar.gz" | sha256sum -c - \
&& tar -C /usr/local -xzf golang.tar.gz \
&& rm golang.tar.gz
ENV PATH=/usr/local/go/bin:$PATH
# Linux and Glibc build dependencies and emulator
RUN apt-get update && apt-get install -y --no-install-recommends \
bison gawk make python3 \
gcc gcc-multilib \
gettext texinfo \
qemu-user \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
# Cross compilers (install recommended packages to get cross libc-dev)
RUN apt-get update && apt-get install -y \
gcc-aarch64-linux-gnu gcc-arm-linux-gnueabi \
gcc-mips-linux-gnu gcc-mips64-linux-gnuabi64 \
gcc-mips64el-linux-gnuabi64 gcc-mipsel-linux-gnu \
gcc-powerpc-linux-gnu gcc-powerpc64-linux-gnu \
gcc-powerpc64le-linux-gnu gcc-riscv64-linux-gnu \
gcc-s390x-linux-gnu gcc-sparc64-linux-gnu \
gcc-loongarch64-linux-gnu \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
# Let the scripts know they are in the docker environment
ENV GOLANG_SYS_BUILD=docker
WORKDIR /build/unix
ENTRYPOINT ["go", "run", "linux/mkall.go", "/git/linux", "/git/glibc"]
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