02/02/2020 22:08, David Marchand:

Here is the current state of the ABI checks.

libabigail has some issues when mixing dump and so files compiled with
clang [1], so for now, all checks are done on dumps only.
libabigail 1.0-rc3 in Xenial reported issues that disappear with the
version 1.2 in Bionic.

To avoid getting warnings on internal types like [2], the checks now make
use of the public headers part of a dpdk installation (patch 2 and 3 to
prepare for this).

Some internal rte_hash headers were installed by meson, so patch 1 fixes
this.

The most important point, abidiff complains on the rc1 cryptodev changes:
- Chacha20-Poly1305 AEAD support,
- ECPM and ECDSA support

A suppression rule has been put on the internal type rte_cryptodev_ops.
But other changes are an ABI breakage afaiu. I put suppression rules on
them so that we can run the checks, but some action must be taken for
20.02 if my analysis is confirmed.

The suppression rules for Chacha-Poly are removed,
and Chacha-Poly commits are reverted while merging this series.

Special thanks to Dodji the libabigail maintainer for helping on this
topic.

1: https://sourceware.org/bugzilla/show_bug.cgi?id=25409
2: http://inbox.dpdk.org/dev/CAJFAV8yFKoDZROX9Mkyp7pDMvXw3e7mHwxjfrcjD5ZoFB2tZ8w@mail.gmail.com/

Applied, thanks