Symbol version

[shamisp]

https://doc.dpdk.org/guides-16.04/contributing/versioning.html

I suggest to adopt similar guidelines. @yosefe - it actually inline with the API versioning that we discussed today. Sympbo.map just automates the process and will provide us with much more flexibility on ABI side.

@jgunthorpe - is this similar to what you have in rdma-core.

[jgunthorpe]

rdma-core doesn't have so much for deprecating symbols, we are a system library so symbols are forever.

But that is a good explanation how to use symbol versions. Both dpdk and rdma-core have the various macros to make it work.

[shamisp]

@jgunthorpe - we do have deprecated APIs that we will want to remove at some point...hopefully. Macro - we would probably prefer to borrow it from RDMA core.