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

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
+
+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
-- 
2.52.0