Function __cxa_pure_virtual

uspace/lib/cpp/src/__bits/runtime.cpp:68–71

     * call of a pure virtual function cannot be made.
     */
    extern "C" void __cxa_pure_virtual()
    {
        std::terminate();
    }

#ifdef __arm__
    extern "C" int __aeabi_atexit(void* p, void (*f)(void*), void* d)