gcov option passed to GCC

.gitlab-ci.yml

@@ -20,7 +20,7 @@ build:
         - rm -rf build
         - mkdir -p build
         - cd build
-        - cmake ../DRAMSys
+        - cmake -Wl,-fprofile-arcs,-ftest-coverage ../DRAMSys
         - make -j16
         - find . -name "*.o" -type f -delete
         - rm -rf ${CI_PROJECT_DIR}/coverage