sqlite-with-gcov

Compile SQLite with coverage instrumentation flags (-fprofile-arcs -ftest-coverage or --coverage) to enable gcov. This generates .gcno files at build time and .gcda files at runtime, allowing you to analyze which code paths executed during testing.

By default, .gcda files are written to the directory where .gcno files were created during compilation. Use GCOV_PREFIX to redirect coverage data to a different location, and GCOV_PREFIX_STRIP to adjust path depth if needed.

After building with coverage flags, check that .gcno files exist in your build directory. Run your compiled program, then confirm .gcda files appear in the expected location. Verify file timestamps to ensure runtime generation occurred.

Yes, gcov instrumentation works with any C or C++ project. The same compilation flags, .gcno/.gcda verification steps, and GCOV_PREFIX path strategies apply across different codebases and build systems.

Building in place generates .gcda files in your source or build directory. GCOV_PREFIX redirects coverage output to an alternate path, useful for cross-compilation, containerized environments, or separating instrumentation data from build artifacts.

Verify the binary was compiled with -fprofile-arcs -ftest-coverage, .gcno files exist in the build directory, the program ran successfully and exited normally, and write permissions exist in the target .gcda directory or GCOV_PREFIX location.