Creating a high-level language (HLL) callable library for a hardware core can include automatically querying, using computer hardware, a metadata description of a core to determine a plurality of available ports of the core, automatically determining, using the computer hardware, an argument of a first function specified in a header file corresponding to the core, mapping, using the computer hardware, the argument to a first port of the plurality of available ports, and automatically generating and storing, using the computer hardware, an HLL library specifying a mapping of the argument to the first port of the core. The HLL library is configured for inclusion with a user application during compilation.