setup_target_for_coverage_gcovr_html fails when running with clang

[DavidLazarescu]

Using the CodeCoverage.cmake module works just fine when I am compiling my project with GCC, but it does not work when running with clang. Is gcovr gcc only, or is there also a way to compile it with clang?

The code I am using is:

# Generate code coverage
if (ENABLE_COVERAGE) 
    include(CodeCoverage)
    append_coverage_compiler_flags_to_target(application)
    setup_target_for_coverage_gcovr_html(
              NAME application_coverage
              EXECUTABLE application_unit_tests
              BASE_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
              EXCLUDE ${PROJECT_BINARY_DIR}/* ${PROJECT_SOURCE_DIR}/libs/*)
endif()

The error I am getting is:

(ERROR) Trouble processing '/home/creapermann/Programming/Etovex/Librum/build-Debug/src/adapters/CMakeFiles/adapters.dir/controllers/user_controller.cpp.gcda' with working directory '/home/creapermann/Programming/Etovex/Librum/build-Debug/src/adapters/CMakeFiles/adapters.dir/controllers/.'.
Stdout of gcov was >>None<< End of stdout
Stderr of gcov was >>None<< End of stderr
Current processed gcov file was None.
Use option --verbose to get extended informations.
Traceback (most recent call last):
File "/usr/lib/python3.10/site-packages/gcovr/workers.py", line 80, in worker
work(*args, **kwargs)
File "/usr/lib/python3.10/site-packages/gcovr/gcov.py", line 323, in process_datafile
done = run_gcov_and_process_files(
File "/usr/lib/python3.10/site-packages/gcovr/gcov.py", line 536, in run_gcov_and_process_files
out, err = gcov_cmd.run_with_args(
File "/usr/lib/python3.10/site-packages/gcovr/gcov.py", line 519, in run_with_args
raise RuntimeError(f"GCOV returncode was {gcov_process.returncode}.")
RuntimeError: GCOV returncode was 3.
Traceback (most recent call last):
File "/usr/lib/python3.10/site-packages/gcovr/workers.py", line 80, in worker
work(*args, **kwargs)
File "/usr/lib/python3.10/site-packages/gcovr/gcov.py", line 323, in process_datafile
done = run_gcov_and_process_files(
File "/usr/lib/python3.10/site-packages/gcovr/gcov.py", line 536, in run_gcov_and_process_files
out, err = gcov_cmd.run_with_args(
File "/usr/lib/python3.10/site-packages/gcovr/gcov.py", line 519, in run_with_args
raise RuntimeError(f"GCOV returncode was {gcov_process.returncode}.")
RuntimeError: GCOV returncode was 3.
(ERROR) Uncaught EXCEPTION
Traceback (most recent call last):
File "/usr/bin/gcovr", line 33, in <module>
sys.exit(load_entry_point('gcovr==6.0', 'console_scripts', 'gcovr')())
File "/usr/lib/python3.10/site-packages/gcovr/__main__.py", line 328, in main
covdata = collect_coverage_from_gcov(options)
File "/usr/lib/python3.10/site-packages/gcovr/__main__.py", line 380, in collect_coverage_from_gcov
with Workers(
File "/usr/lib/python3.10/site-packages/gcovr/workers.py", line 173, in __exit__
self.wait()
File "/usr/lib/python3.10/site-packages/gcovr/workers.py", line 164, in wait
raise self.exceptions[0][1]
File "/usr/lib/python3.10/site-packages/gcovr/__main__.py", line 387, in collect_coverage_from_gcov
contexts = pool.wait()
File "/usr/lib/python3.10/site-packages/gcovr/workers.py", line 164, in wait
raise self.exceptions[0][1]
File "/usr/lib/python3.10/site-packages/gcovr/workers.py", line 80, in worker
work(*args, **kwargs)
File "/usr/lib/python3.10/site-packages/gcovr/gcov.py", line 323, in process_datafile
done = run_gcov_and_process_files(
File "/usr/lib/python3.10/site-packages/gcovr/gcov.py", line 536, in run_gcov_and_process_files
out, err = gcov_cmd.run_with_args(
File "/usr/lib/python3.10/site-packages/gcovr/gcov.py", line 519, in run_with_args
raise RuntimeError(f"GCOV returncode was {gcov_process.returncode}.")
RuntimeError: GCOV returncode was 3.
make[3]: *** [src/adapters/CMakeFiles/coverage.dir/build.make:73: src/adapters/CMakeFiles/coverage] Error 1
make[2]: *** [CMakeFiles/Makefile2:2437: src/adapters/CMakeFiles/coverage.dir/all] Error 2
make[1]: *** [CMakeFiles/Makefile2:2444: src/adapters/CMakeFiles/coverage.dir/rule] Error 2
make: *** [Makefile:1053: coverage] Error 2