Code coverage ( *.cpp.gcda: CANNOT OPEN) is not working - c++11

Question

I want to code coverage with gcov & lcov. But I got a few error.I think My CMakeLists is not providing ".gcda" files or is not finding ".gcda" files.
I tried a lot of solutions. Such as;
- I looked at similar projects and rearranged:
For example: https://jhbell.com/using-cmake-and-gcov
- I changed object output direcory:
set(OBJECT_OUTPUT_DIR ${CMAKE_BINARY_DIR}/test/CMakeFiles/*****rpmsgtobetested.dir)
But I didn't solve this problem.
CMAKE_MINIMUM_REQUIRED(VERSION 3.8)
option(COMPILE_TESTS "Compile the tests" OFF)
if(COMPILE_TESTS)
enable_language(C)
enable_language(CXX)
set(CMAKE_INCLUDE_CURRENT_DIR ON)
if(DEFINED ENV{CPPUTEST_HOME})
message(STATUS "Using CppUTest home: $ENV{CPPUTEST_HOME}")
set(CPPUTEST_INCLUDE_DIRS $ENV{CPPUTEST_HOME}/include)
set(CPPUTEST_LIBRARIES $ENV{CPPUTEST_HOME}/lib)
set(CPPUTEST_LDFLAGS CppUTest CppUTestExt)
else()
find_package(PkgConfig REQUIRED)
pkg_search_module(CPPUTEST REQUIRED cpputest>=3.8)
message(STATUS "Found CppUTest version ${CPPUTEST_VERSION}")
endif()
pkg_check_modules(******rpmsgtest_depends json-c)
add_definitions(-DCPPUTEST_USE_MEM_LEAK_DETECTION=0)
add_definitions("-std=c++11")
# Coverage bilgisi elde etmek için CXX flagları
#
set(CMAKE_CXX_FLAGS "-g -O0 -Wall -fprofile-arcs -ftest-coverage")
set(CMAKE_CXX_OUTPUT_EXTENSION_REPLACE OFF)
set(OBJECT_OUTPUT_DIR ${CMAKE_BINARY_DIR}/test/CMakeFiles/******rpmsgtobetested.dir)
# (1) set sources to be tested
set(TARGET_LIBTOBETESTED ******rpmsgtobetested)
set(libtobetested_sources
../src/rpmsg_device.cpp
../src/rpmsg_sm_messages.cpp
../src/thread_interface.cpp)
add_library(${TARGET_LIBTOBETESTED} ${libtobetested_sources})
# (2) Our unit tests sources
set(TEST_APP_NAME ${TARGET_LIBTOBETESTED}_tests)
set(TEST_SOURCES
test_rpmsg_device.cpp
main.cpp
fake_sdevent.cpp
fake_syscalls.cpp
)
# (3) Take care of include directories
include_directories(${CPPUTEST_INCLUDE_DIRS}
../include
/usr/include/glib-2.0
/usr/include/gio-unix-2.0
${******rpmsgtest_depends_INCLUDE_DIRS})
link_directories(${CPPUTEST_LIBRARIES})
link_libraries(${TARGET_LIBTOBETESTED})
# (4) Build the unit tests objects and link then with the app library
add_executable(${TEST_APP_NAME} ${TEST_SOURCES})
target_compile_options(${TEST_APP_NAME} PUBLIC ${******rpmsgtest_depends_CFLAGS})
target_link_libraries(${TEST_APP_NAME} ${link_libraries}
${CPPUTEST_LDFLAGS}
${******rpmsgtest_depends_LIBRARIES}
)
# (5) Run the test once the build is done
add_custom_command(TARGET ${TEST_APP_NAME} COMMAND ./${TEST_APP_NAME} POST_BUILD)
############################################################################
################################### LCOV ###################################
############################################################################
add_custom_target(lcov
COMMAND mkdir -p coverage
COMMAND mkdir -p coverage/html
COMMAND ${CMAKE_MAKE_PROGRAM}
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
)
add_custom_command(TARGET lcov
COMMAND echo "################# LCOV #################"
COMMAND lcov -c -d ${COVERAGE_DATA_DIR} -o ${CMAKE_BINARY_DIR}/coverage.info
COMMAND lcov --remove ${CMAKE_BINARY_DIR}/coverage.info '**/include/**' -o ${CMAKE_BINARY_DIR}/coverage_filtered.info
COMMAND genhtml -o ${CMAKE_BINARY_DIR}/coverage/html ${CMAKE_BINARY_DIR}/coverage_filtered.info --ignore-errors source
COMMAND echo "-- Coverage report has been output to ${CMAKE_BINARY_DIR}/coverage/html"
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
)
add_dependencies(lcov ${TARGET_LIBTOBETESTED})
############################################################################
################################### GCOV ###################################
############################################################################
add_custom_target(gcov
COMMAND mkdir -p coverage
COMMAND ${CMAKE_MAKE_PROGRAM}
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
)
add_custom_command(TARGET gcov
COMMAND echo "################# GCOV #################"
COMMAND gcov -b ${libtobetested_sources} -o ${OBJECT_OUTPUT_DIR} | grep -A 5 ".cpp$" > CoverageSummary.tmp
COMMAND cat CoverageSummary.tmp
COMMAND echo "-- Coverage files have been output to ${CMAKE_BINARY_DIR}/coverage"
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/coverage
)
add_dependencies(gcov ${TARGET_LIBTOBETESTED})
else()
message(STATUS "Cross compile environment set")
endif()
Like below the last of my code output.
TEST(RpmsgDevice_test, create_new_object_with_null_param) - 0 ms
TEST(RpmsgDevice_test, create_new_object_cannot_open_device) - 0 ms
TEST(RpmsgDevice_test, create_new_object_with_thread) - 0 ms
OK (10 tests, 10 ran, 20 checks, 0 ignored, 0 filtered out, 0 ms)
profiling:/home/msergenergen/Desktop/*****/IP/*****-lib-rpmsg/build-test/test/CMakeFiles/*****rpmsgtobetested.dir//src/rpmsg_sm_messages.cpp.gcda:Cannot open
profiling:/home/msergenergen/Desktop/*****/IP/*****-lib-rpmsg/build-test/test/CMakeFiles/*****rpmsgtobetested.dir//src/rpmsg_device.cpp.gcda:Cannot open
profiling:/home/msergenergen/Desktop/*****/IP/*****-lib-rpmsg/build-test/test/CMakeFiles/*****rpmsgtobetested_tests.dir/fake_syscalls.cpp.gcda:Cannot open
profiling:/home/msergenergen/Desktop/*****/IP/*****-lib-rpmsg/build-test/test/CMakeFiles/*****rpmsgtobetested_tests.dir/fake_sdevent.cpp.gcda:Cannot open
profiling:/home/msergenergen/Desktop/*****/IP/******-lib-rpmsg/build-test/test/CMakeFiles/*****rpmsgtobetested_tests.dir/main.cpp.gcda:Cannot open
profiling:/home/msergenergen/Desktop/*****/IP/*****-lib-rpmsg/build-test/test/CMakeFiles/*****rpmsgtobetested_tests.dir/test_rpmsg_device.cpp.gcda:Cannot open
[100%] Built target *****rpmsgtobetested_tests