protobuf for Unikraft

This is the port of protobuf as a Unikraft external library.

Build

Protobuf depends on the following libraries that need to be added to Makefile in this order:

• pthreads, e.g. pthread-embedded
• CXX standard library, e.g. libunwind, compiler-rt, libcxxabi, libcxx
• libc, e.g. newlib

Usage

.proto files must be compiled before compiling this library, or if you would like the Unikraft build system to drive that process you add a target to UK_PREPARE, e.g.,

$(LIBPROTOBUF_BUILD)/.configured: [commands to compile .proto files]

UK_PREPARE += $(LIBPROTOBUF_BUILD)/.configured

Please refer to the README.md as well as the documentation in the doc/ subdirectory of the main unikraft repository.