github: Add basic RISC-V CI

.github/workflows/riscv64.yml

@@ -0,0 +1,63 @@
+name: RISCV64
+
+on: [ push, pull_request ]
+
+env:
+  BUILD_TYPE: Release
+
+jobs:
+  build_linux:
+    strategy:
+      matrix:
+        platform: [ linux ]
+      fail-fast: false
+
+    runs-on: ubuntu-latest
+
+    steps:
+
+      - name: Install build dependencies
+        run: >
+          sudo apt-get update &&
+          sudo apt-get install
+          gcc-10-riscv64-linux-gnu
+          g++-10-riscv64-linux-gnu
+          ninja-build
+          qemu-user
+
+      - name: Checkout dynarmic repo
+        uses: actions/checkout@v2
+
+      - name: Ccache
+        if: matrix.platform == 'linux'
+        uses: hendrikmuhs/ccache-action@v1.2
+
+      - name: Checkout ext-boost repo
+        uses: actions/checkout@v2
+        with:
+          repository: MerryMage/ext-boost
+          path: externals/ext-boost
+
+      - name: Configure CMake for RISCV64 (Linux)
+        if: matrix.platform == 'linux'
+        env:
+          CC: riscv64-linux-gnu-gcc-10
+          CXX: riscv64-linux-gnu-g++-10
+        run: >
+          cmake
+          -B ${{github.workspace}}/build-riscv64
+          -DBOOST_INCLUDEDIR=${{github.workspace}}/externals/ext-boost
+          -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
+          -DDYNARMIC_TESTS_USE_UNICORN=0
+          -DDYNARMIC_USE_LLVM=0
+          -DDYNARMIC_FRONTENDS=A32
+          -G Ninja
+
+      - name: Build RISCV64
+        working-directory: ${{github.workspace}}/build-riscv64
+        run: cmake --build . --config Release
+
+      # - name: Basic tests
+      #   if: matrix.platform == 'linux'
+      #   working-directory: ${{github.workspace}}
+      #   run: qemu-riscv64 -L /usr/riscv64-linux-gnu ./build-riscv64/tests/dynarmic_tests -d yes