When fuzzing C or C++ projects, is it necessary to instrument the dependent third-party static libraries?

[Just-do-st]

Hi,

If I specify the compiler $CC and $CXX as afl-clang-fast or afl-clang-lto from AFL++, the build.sh script will instrument the third-party static libraries when compiling them. This results in larger instrumentation bitmaps, and frequent traversals of these bitmaps during fuzzing can incur significant overhead.

I would like to ask if we only want to fuzzing the code implemented in the project, do we need to instrument the actual implementation code of the dependent third-party libraries?

Thanks,

Steven