Enable various sanitizer builds in github actions (#1167)

.github/workflows/sanitizer.yml

+name: sanitizer
+
+on:
+  push: {}
+  pull_request: {}
+
+env:
+  CC: clang-3.8
+  CXX: clang++-3.8
+  EXTRA_CXX_FLAGS: "-stdlib=libc++"
+  UBSAN_OPTIONS: "print_stacktrace=1"
+
+jobs:
+  job:
+    name: ${{ matrix.sanitizer }}.${{ matrix.build_type }}
+    runs-on: ubuntu-16.04
+    strategy:
+      fail-fast: false
+      matrix:
+        build_type: ['Debug', 'RelWithDebInfo']
+        sanitizer: ['asan', 'ubsan', 'tsan']
+        # TODO: add 'msan' above. currently failing and needs investigation.
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: configure msan env
+      if: matrix.sanitizer == 'msan'
+      run: |
+        echo "EXTRA_FLAGS=-g -O2 -fno-omit-frame-pointer -fsanitize=memory -fsanitize-memory-track-origins" >> $GITHUB_ENV
+        echo "LIBCXX_SANITIZER=MemoryWithOrigins" >> $GITHUB_ENV
+        
+    - name: configure ubsan env
+      if: matrix.sanitizer == 'ubsan'
+      run: |
+        echo "EXTRA_FLAGS=-g -O2 -fno-omit-frame-pointer -fsanitize=undefined -fno-sanitize-recover=all" >> $GITHUB_ENV
+        echo "LIBCXX_SANITIZER=Undefined" >> $GITHUB_ENV
+
+    - name: configure asan env
+      if: matrix.sanitizer == 'asan'
+      run: |
+        echo "EXTRA_FLAGS=-g -O2 -fno-omit-frame-pointer -fsanitize=address -fno-sanitize-recover=all" >> $GITHUB_ENV
+        echo "LIBCXX_SANITIZER=Address" >> $GITHUB_ENV
+
+    - name: configure tsan env
+      if: matrix.sanitizer == 'tsan'
+      run: |
+        echo "EXTRA_FLAGS=-g -O2 -fno-omit-frame-pointer -fsanitize=thread -fno-sanitize-recover=all" >> $GITHUB_ENV
+        echo "LIBCXX_SANITIZER=Thread" >> $GITHUB_ENV
+
+    - name: install clang-3.8
+      run: |
+        sudo apt update
+        sudo apt -y install clang-3.8
+
+    - name: install libc++
+      run: "${GITHUB_WORKSPACE}/.libcxx-setup.sh"
+
+    - name: create build environment
+      run: cmake -E make_directory ${{ runner.workspace }}/_build
+
+    - name: configure cmake
+      shell: bash
+      working-directory: ${{ runner.workspace }}/_build
+      run: >
+        cmake $GITHUB_WORKSPACE
+        -DBENCHMARK_ENABLE_ASSEMBLY_TESTS=OFF
+        -DBENCHMARK_ENABLE_LIBPFM=OFF
+        -DBENCHMARK_DOWNLOAD_DEPENDENCIES=ON
+        -DCMAKE_C_COMPILER=${{ env.CC }}
+        -DCMAKE_CXX_COMPILER=${{ env.CXX }}
+        -DCMAKE_C_FLAGS="${{ env.EXTRA_FLAGS }}"
+        -DCMAKE_CXX_FLAGS="${{ env.EXTRA_FLAGS }} ${{ env.EXTRA_CXX_FLAGS }}"
+        -DCMAKE_BUILD_TYPE=${{ matrix.build_type }}
+
+    - name: build
+      shell: bash
+      working-directory: ${{ runner.workspace }}/_build
+      run: cmake --build . --config ${{ matrix.build_type }}
+      
+    - name: test
+      shell: bash
+      working-directory: ${{ runner.workspace }}/_build
+      run: ctest -C ${{ matrix.build_type }} -VV

.travis-libcxx-setup.sh → .libcxx-setup.sh

@@ -19,7 +19,7 @@ fi
 mkdir llvm-build && cd llvm-build
 cmake -DCMAKE_C_COMPILER=${C_COMPILER} -DCMAKE_CXX_COMPILER=${COMPILER} \
       -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_INSTALL_PREFIX=/usr \
-      -DLIBCXX_ABI_UNSTABLE=ON \
+      -DLIBCXX_ABI_UNSTABLE=OFF \
       -DLLVM_USE_SANITIZER=${LIBCXX_SANITIZER} \
       -DLLVM_BUILD_32_BITS=${BUILD_32_BITS} \
       ../llvm-source

.travis.yml

@@ -149,7 +149,7 @@ matrix:
 
 before_script:
   - if [ -n "${LIBCXX_BUILD}" ]; then
-      source .travis-libcxx-setup.sh;
+      source .libcxx-setup.sh;
     fi
   - if [ -n "${ENABLE_SANITIZER}" ]; then
       export EXTRA_OPTIONS="-DBENCHMARK_ENABLE_ASSEMBLY_TESTS=OFF";