Clang coverage callback default function

Greetings,

according to the documentation at

https://clang.llvm.org/docs/SanitizerCoverage.html#default-implementation

Clang provides default implementations of the coverage callbacks for sancov output. Can these be examined in the code somewhere, if yes, where? I’m in a project that has to use gcc but would be happy to use them somehow.

I accidently double-posted btw.

Regards