MC_REGION_TYPE_UNKNOWN, source, source, byte_size);
void* destination = mmap(NULL, byte_size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
MC_REGION_TYPE_UNKNOWN, source, source, byte_size);
void* destination = mmap(NULL, byte_size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);