[dpdk-dev] [PATCH v7 0/4] devtools: abi breakage checks

[David Marchand]

On Tue, Nov 3, 2020 at 11:07 AM Kinsella, Ray <mdr at ashroe.eu> wrote:
> Came across an issue with this.
>
> Essentially what is happening is that an ABI dump file generated with a newer versions of libabigail
> is not guaranteed to be 100% compatible with a older versions.
>
> That then adds a wrinkle that we need may need to look at maintaining abi dump archives per distro release,
> or libabigail version depending on how you look at it.

This is something I had encountered.

The Travis script flushes the ABI cache on a libabigail version change.
When using the test-meson-builds.sh integration, the gen-abi.sh
devtools script can be called to regenerate the dump files from the
existing local binaries.


>
> An alter approach suggested by Dodi would be to just archive the binaries somewhere instead,
> and regenerate the dumps at build time. That _may_ be feasible,
> but you lose some of the benefit (build time saving) compared to archiving the abi dumps.
>
> The most sensible approach to archiving the binaries.
> is to use DPDK release os packaging for this, installed to a fs sandbox.
>
> So the next steps are figuring out, which is the better option between
> maintaining multiple abi dump archives, one per supported os distro.
> or looking at what needs to happen with DPDK os packaging.
>
> So some work still to do here.

I am still unconvinced about the approach, but I'll wait for your next proposal.


-- 
David Marchand