Add s390x GHA workflow

Co-Authored-By: Alex Reinking <[email protected]>

.github/workflows/build.yml

@@ -185,3 +185,49 @@ jobs:
     - run: make clang-debug
     - name: tests (wasm2c tests excluding memory64)
       run: ./test/run-tests.py wasm2c --exclude-dir memory64
+
+  build-arch:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        arch: [s390x]
+    steps:
+    - uses: actions/setup-python@v1
+      with:
+        python-version: '3.x'
+    - uses: actions/checkout@v1
+      with:
+        submodules: true
+    - name: Set up QEMU
+      if: ${{ matrix.arch != 'i386' }}
+      uses: docker/setup-qemu-action@v2
+      with:
+        platforms: ${{matrix.arch}}
+        image: "tonistiigi/binfmt:master"
+    - name: install ninja
+      run: sudo apt-get install ninja-build
+    - name: install the toolchain
+      run: sudo apt-get install g++-${{matrix.arch}}-linux-gnu
+    - name: mkdir
+      run: mkdir -p out
+    - name: cmake
+      run: cmake -DCMAKE_TOOLCHAIN_FILE=../scripts/TC-${{matrix.arch}}.cmake .. -G Ninja -DWITH_WASI=ON -DWERROR=OFF -Werror=dev -Wno-deprecated
+      working-directory: out
+    - name: build
+      run: cmake --build out
+    - name: check if generated files are up-to-date
+      run: python ./scripts/check_clean.py
+    - name: unittests
+      run: cmake --build out --target run-unittests
+      env:
+        QEMU_LD_PREFIX: /usr/${{matrix.arch}}-linux-gnu/
+    - name: c-api-tests
+      run: cmake --build out --target run-c-api-tests
+      env:
+        QEMU_LD_PREFIX: /usr/${{matrix.arch}}-linux-gnu/
+      if: ${{ matrix.arch != 's390x' }}
+    - name: tests
+      run: cmake --build out --target run-tests
+      env:
+        QEMU_LD_PREFIX: /usr/${{matrix.arch}}-linux-gnu/

scripts/TC-s390x.cmake

@@ -0,0 +1,11 @@
+set(CMAKE_SYSTEM_NAME Linux)
+
+set(CMAKE_C_COMPILER s390x-linux-gnu-gcc)
+set(CMAKE_CXX_COMPILER s390x-linux-gnu-g++)
+
+set(CMAKE_FIND_ROOT_PATH /usr/s390x-linux-gnu)
+
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)