cmake: added gcov support

CMakeCommon/SetCompilerFlags.cmake

@@ -41,6 +41,9 @@ function(SetGNUCompilerFlags compiler_libs)
           PARENT_SCOPE)
       set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -DNDEBUG"
           PARENT_SCOPE)
+      set(CMAKE_C_FLAGS_COVERAGE
+         "${CMAKE_C_FLAGS_COVERAGE} -O0 -fprofile-arcs -ftest-coverage"
+         PARENT_SCOPE)
     endif()
     if(CMAKE_COMPILER_IS_GNUCXX)
       set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread -std=c++03 ${warning_flags}"
@@ -49,6 +52,9 @@ function(SetGNUCompilerFlags compiler_libs)
           PARENT_SCOPE)
       set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -DNDEBUG"
           PARENT_SCOPE)
+      set(CMAKE_CXX_FLAGS_COVERAGE
+         "${CMAKE_CXX_FLAGS_COVERAGE} -O0 -fprofile-arcs -ftest-coverage"
+         PARENT_SCOPE)
     endif()
   endif()
 endfunction()

CMakeLists.txt

@@ -33,7 +33,7 @@ set (EMBB_BASE_VERSION_PATCH 1)
 if(NOT CMAKE_BUILD_TYPE)
 set(CMAKE_BUILD_TYPE "Release" CACHE STRING
   "Choose the type of build, options are: Debug Release
-  RelWithDebInfo MinSizeRel." FORCE)
+  RelWithDebInfo MinSizeRel Coverage." FORCE)
 endif(NOT CMAKE_BUILD_TYPE)
 
 # Check for clang, masquerade it as GNU