https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83877
--- Comment #3 from Marco Castelluccio <mcastelluccio at mozilla dot com> --- The problem we have is that there's a directory containing gcno files and multiple directories containing gcda files (one for each test suite execution). gcov expects the gcda and gcno files to be in the same directory, so we currently create symlinks to the gcno files in the gcda directories. Example situation: gcno_dir/main.gcno gcda_dir_1/main.gcda gcda_dir_2/main.gcda If I run `gcov gcda_dir_1/main.gcda -o gcno_dir/`, gcov says: gcno/main.gcda:cannot open data file, assuming not executed
