https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83509
--- Comment #3 from PeteVine <tulipawn at gmail dot com> --- OK, the following command was used to obtain the gcno/gcda files: $ gcc-8 -O3 -fprofile-generate -ftest-coverage sudoku.c && ./a.out Unlike the gcda file, gcno is dumpable with gcov-dump-8.
