Check for ABI breaks #4221
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| name: Check for ABI breaks | |
| on: | |
| pull_request: | |
| branches-ignore: | |
| - abi-break | |
| merge_group: | |
| jobs: | |
| run-abidiff: | |
| name: Compare ABIs | |
| runs-on: ubuntu-latest | |
| container: debian:trixie | |
| defaults: | |
| run: | |
| shell: bash | |
| steps: | |
| - name: Install prerequisites | |
| run: | | |
| apt-get update | |
| apt-get install -y meson ninja-build qemu-user \ | |
| python3-setuptools python3-jsonschema \ | |
| python3-pip abigail-tools git rsync wget file | |
| pip install --break-system-packages -U xbstrap pyexpect | |
| - name: Checkout base branch | |
| if: ${{ github.base_ref }} | |
| uses: actions/checkout@v2 | |
| with: | |
| path: mlibc-base | |
| ref: ${{ github.base_ref }} | |
| submodules: true | |
| fetch-depth: 4 | |
| - name: Checkout managarm/mlibc#master | |
| if: ${{ github.base_ref == '' }} | |
| uses: actions/checkout@v2 | |
| with: | |
| path: mlibc-base | |
| repository: managarm/mlibc | |
| submodules: true | |
| ref: master | |
| fetch-depth: 4 | |
| - name: Checkout branch | |
| uses: actions/checkout@v2 | |
| with: | |
| path: mlibc-branch | |
| submodules: true | |
| - name: Determine base ref | |
| run: | | |
| master_hash="$(git -C mlibc-base rev-parse HEAD)" | |
| branch_hash="$(git -C mlibc-branch rev-parse HEAD)" | |
| printf '%s\n' "$master_hash" "$branch_hash" | |
| if [ "$master_hash" = "$branch_hash" ]; then | |
| git -C mlibc-base reset --hard HEAD^ | |
| fi | |
| - name: Set up linux kernel headers | |
| run: | | |
| set -x | |
| mkdir -p linux-headers-base/{src,build} | |
| cp mlibc-base/ci/bootstrap.yml linux-headers-base/src/ | |
| ( | |
| cd linux-headers-base/build | |
| xbstrap init ../src | |
| xbstrap install linux-headers | |
| ) | |
| mkdir -p linux-headers-branch/{src,build} | |
| cp mlibc-branch/ci/bootstrap.yml linux-headers-branch/src/ | |
| ( | |
| cd linux-headers-branch/build | |
| xbstrap init ../src | |
| xbstrap install linux-headers | |
| ) | |
| cat > linux-headers-base/build/bootstrap-site.yml << EOF | |
| define_options: | |
| arch: ${{matrix.arch}} | |
| EOF | |
| cp linux-headers-base/build/bootstrap-site.yml linux-headers-branch/build/bootstrap-site.yml | |
| - name: Get libgcc-binaries | |
| run: | | |
| set -e | |
| wget -O /tmp/libgcc-x86_64.a https://github.com/osdev0/libgcc-binaries/releases/latest/download/libgcc-x86_64.a | |
| - name: Build and install both copies | |
| run: | | |
| set -xe | |
| mkdir root-base root-branch | |
| cat > linux-x86_64.cross-file <<-EOF | |
| [binaries] | |
| c = 'gcc' | |
| cpp = 'g++' | |
| [host_machine] | |
| system = 'linux' | |
| cpu_family = 'x86_64' | |
| cpu = 'x86_64' | |
| endian = 'little' | |
| EOF | |
| ( | |
| cd mlibc-branch | |
| LDFLAGS='-Wl,/tmp/libgcc-x86_64.a' meson setup \ | |
| --cross-file=../linux-x86_64.cross-file \ | |
| --buildtype=debugoptimized \ | |
| -Dlibgcc_dependency=false \ | |
| -Duse_freestnd_hdrs=enabled \ | |
| -Dlinux_kernel_headers=$GITHUB_WORKSPACE/linux-headers-branch/build/packages/linux-headers/usr/include \ | |
| build | |
| ninja -C build | |
| DESTDIR="$GITHUB_WORKSPACE/root-branch" ninja -C build install | |
| ) | |
| ( | |
| cd mlibc-base | |
| LDFLAGS='-Wl,/tmp/libgcc-x86_64.a' meson setup \ | |
| --cross-file=../linux-x86_64.cross-file \ | |
| --buildtype=debugoptimized \ | |
| -Dlibgcc_dependency=false \ | |
| -Duse_freestnd_hdrs=enabled \ | |
| -Dlinux_kernel_headers=$GITHUB_WORKSPACE/linux-headers-branch/build/packages/linux-headers/usr/include \ | |
| build | |
| ninja -C build | |
| DESTDIR="$GITHUB_WORKSPACE/root-base" ninja -C build install | |
| ) | |
| - name: Compare | |
| run: | | |
| # TODO(arsen): does this require handling for version suffixes? | |
| set -e +x | |
| exec 2>&1 # work around GHA foolishly decoupling stdout and stderr | |
| exitcode=0 | |
| git -C mlibc-branch show -s --format=%s | grep -q abi-break || \ | |
| exitcode=1 | |
| echo ==== RUNNING ABIDIFF... ==== | |
| ( cd root-base; find . -type f -name '*.so'; ) | while read -r file | |
| do | |
| if ! file -- root-{base,branch}/"$file"; then | |
| touch files-differ | |
| continue | |
| fi | |
| abidiff \ | |
| --no-added-syms \ | |
| --suppr mlibc-branch/ci/abidiff_suppress.ini \ | |
| --hd1 root-base/usr/local/include/ \ | |
| --hd2 root-branch/usr/local/include/ \ | |
| root-{base,branch}/"$file" \ | |
| || touch files-differ | |
| done | |
| echo ==== CHECKING FOR EXTRA FILES... ==== | |
| ( cd root-branch; find . -type f -name '*.so'; ) | while read -r file | |
| do | |
| [ -e "root-base/$file" ] || file root-{base,branch}/"$file" \ | |
| || touch files-differ | |
| done | |
| if [ -e files-differ ]; then | |
| echo SOME FILES/ABI DIFFER, SEE OUTPUT ABOVE | |
| exit "$exitcode" | |
| fi |