Re: [PATCH v2 0/2] Validating UAPI backwards compatibility

From: Trilok Soni
Date: Wed Mar 01 2023 - 18:36:23 EST


On 3/1/2023 3:33 PM, Nick Desaulniers wrote:
On Wed, Mar 1, 2023 at 2:33 PM John Moon <quic_johmoo@xxxxxxxxxxx> wrote:

With some additional help from Nick offline, we determined that the
issue isn't with clang, but with libdw (from elfutils). You need at
least libdw version 0.171 for the abidiff tool to work correctly with
clang (in this particular case). Ubuntu 18.04 ships with version 0.170.

If there's any interest, it'd be fairly easy to add a check for this
condition under the check_deps() function in the script.

Good job John; mind sending a v3 with that addition, and the commit
message updated?

I would prefer to wait to get more reviews on v2 from Greg/Masahiro and then combine above checks in the v3. If there are no comments by next Monday then we can send v3, sounds good?

---Trilok Soni