FROM ubuntu:25.10 RUN apt-get update && apt-get install -y --no-install-recommends \ gcc \ g++ \ ca-certificates \ libc6-dev \ libc6-dev-arm64-cross \ qemu-user \ make \ file \ clang \ curl \ xz-utils \ lld ENV TOOLCHAIN="arm-gnu-toolchain-14.3.rel1-x86_64-aarch64_be-none-linux-gnu" # Download the aarch64_be gcc toolchain RUN curl -L "https://developer.arm.com/-/media/Files/downloads/gnu/14.3.rel1/binrel/${TOOLCHAIN}.tar.xz" -o "${TOOLCHAIN}.tar.xz" RUN tar -xvf "${TOOLCHAIN}.tar.xz" RUN mkdir /toolchains && mv "./${TOOLCHAIN}" /toolchains ENV AARCH64_BE_TOOLCHAIN="/toolchains/${TOOLCHAIN}" ENV AARCH64_BE_LIBC="${AARCH64_BE_TOOLCHAIN}/aarch64_be-none-linux-gnu/libc" ENV CARGO_TARGET_AARCH64_BE_UNKNOWN_LINUX_GNU_LINKER="${AARCH64_BE_TOOLCHAIN}/bin/aarch64_be-none-linux-gnu-gcc" ENV CARGO_TARGET_AARCH64_BE_UNKNOWN_LINUX_GNU_RUNNER="qemu-aarch64_be -cpu max -L ${AARCH64_BE_LIBC}" ENV OBJDUMP="${AARCH64_BE_TOOLCHAIN}/bin/aarch64_be-none-linux-gnu-objdump" ENV STDARCH_TEST_SKIP_FEATURE=tme