Re: [PATCH v2 40/50] test: helper-to-tcg docker tests

On 7/29/2026 8:10 PM, Anton Johansson wrote:
> Adds a docker container with LLVM versions 15-21 and a docker test for
> building helper-to-tcg and running end-to-end tests along with running
> check-tcg, for testing targets such as Hexagon.
> 
> Signed-off-by: Anton Johansson <[email protected]>
> --
> NOTE: Last I checked I had some troubles with C++17 support within the
> container, was a while ago though.
> ---
>  tests/docker/dockerfiles/debian-llvm.docker | 38 +++++++++++++++++++
>  tests/docker/test-helper-to-tcg             | 41 +++++++++++++++++++++
>  2 files changed, 79 insertions(+)
>  create mode 100644 tests/docker/dockerfiles/debian-llvm.docker
>  create mode 100755 tests/docker/test-helper-to-tcg
> 
> diff --git a/tests/docker/dockerfiles/debian-llvm.docker b/tests/docker/dockerfiles/debian-llvm.docker
> new file mode 100644
> index 0000000000..7bfc084a34
> --- /dev/null
> +++ b/tests/docker/dockerfiles/debian-llvm.docker
> @@ -0,0 +1,38 @@
> +FROM docker.io/library/debian:11-slim
> +

As Alessandro mentioned in his answer, all others containers are using
debian:13-slim, you can migrate to this one also.

> +RUN apt update && \
> +    DEBIAN_FRONTEND=noninteractive apt install -yy eatmydata && \
> +    DEBIAN_FRONTEND=noninteractive eatmydata \
> +    apt install -y --no-install-recommends \
> +        bison \
> +        ca-certificates \
> +        flex \
> +        gawk \
> +        libmpc-dev \
> +        libmpfr-dev \
> +        libglib2.0-dev \
> +        libpixman-1-dev \
> +        make \
> +        ninja-build \
> +        rsync \
> +        pkgconf \
> +        wget \
> +        lsb-release \
> +        software-properties-common \
> +        gnupg \
> +        meson \
> +        python3-pip \
> +        python3-setuptools \
> +        python3-venv \
> +        python3-wheel
> +
> +RUN /usr/bin/pip3 install tomli
> +
> +RUN wget https://apt.llvm.org/llvm.sh && chmod +x llvm.sh
> +RUN ./llvm.sh 15 all
> +RUN ./llvm.sh 16 all
> +RUN ./llvm.sh 17 all
> +RUN ./llvm.sh 18 all
> +RUN ./llvm.sh 19 all
> +RUN ./llvm.sh 20 all
> +RUN ./llvm.sh 21 all
> diff --git a/tests/docker/test-helper-to-tcg b/tests/docker/test-helper-to-tcg
> new file mode 100755
> index 0000000000..0c27040d60
> --- /dev/null
> +++ b/tests/docker/test-helper-to-tcg
> @@ -0,0 +1,41 @@
> +#!/bin/bash -e
> +
> +TEST_COMMAND=""
> +TARGET_LIST=""
> +
> +cd "$BUILD_DIR"
> +
> +# Checks helper-to-tcg builds and passes unit tests
> +# for targetted LLVM versions.  Run meson from QEMU source so helper-to-tcg tests can find
> +# `tcg-global-mappings.h`.
> +for version in {15..21}; do
> +    llvm_config=llvm-config-${version}
> +    build_dir="${BUILD_DIR}/build-helper-to-tcg-${version}"
> +    cxx=$(${llvm_config} --bindir)/clang++
> +    [ ! -d ${build_dir} ] && mkdir ${build_dir}
> +    CXX=${cxx} meson setup ${build_dir} ${QEMU_SRC}/subprojects/helper-to-tcg -Dllvm_config_path=${llvm_config}
> +    meson compile -C ${build_dir}
> +    meson test -C ${build_dir} --suite 'helper-to-tcg:helper-to-tcg'
> +done
> +
> +# Runs check-tcg for all LLVM versions
> +llvm_config_main=llvm-config-15
> +bin_main=$(${llvm_config_main} --bindir)
> +cc_main=${bin_main}/clang
> +cxx_main=${bin_main}/clang++
> +for version in {15..21}; do
> +    llvm_config=llvm-config-${version}
> +    build_dir=build-qemu-${version}
> +    bin=$(${llvm_config} --bindir)
> +    cxx=${bin}/clang++
> +    cc=${bin}/clang
> +    [ ! -d ${build_dir} ] && mkdir ${build_dir}
> +
> +    pushd ${build_dir}
> +
> +    TARGET_LIST=${TARGET_LIST:-$DEF_TARGET_LIST} \
> +    build_qemu "--cc=${cc_main} --cxx=${cxx_main} -Dhelper-to-tcg:llvm_config_path=${llvm_config} --enable-debug-tcg"
> +    check_tcg
> +
> +    popd
> +done