Dynamic languages usually come with their own memory manager. They can come up with their own alignment constraints. That being said, most contemporary (Linux)

Dynamic languages usually come with their own memory manager. They can come up with their own alignment constraints. That being said, most contemporary (Linux) architectures require that malloc returns 16 byte alignned pointers. Some mallocs only promise this for allocations larger than 8 bytes, though (and I think the C standard was updated to permit that).