[llvm-dev] Upcoming change with how libc++, libc++abi and libunwind are being built

Mehdi AMINI via llvm-dev llvm-dev at lists.llvm.org
Tue Oct 19 10:39:12 PDT 2021

On Tue, Oct 19, 2021 at 9:37 AM Louis Dionne via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> On Tue, Oct 19, 2021 at 12:45 AM Michael Kruse <llvmdev at meinersbur.de>
> wrote:
>> Am Mo., 18. Okt. 2021 um 15:19 Uhr schrieb Louis Dionne <
>> ldionne.2 at gmail.com>:
>> > Nowadays, we handle all libc++'s own build bots through BuildKite at
>> https://buildkite.com/llvm-project/libcxx-ci.
>> I didn't know. Good that there is systematic testing, but I am a bit
>> concerned about the fracturing of the CI infrastructure (Buildbot,
>> Green dragon, GitHub actions, Buildkite, ...)
> For libc++/libc++abi/libunwind, it's actually quite simple. There's
> exactly one place to look, and it's BuildKite. And it runs systematically
> on all changes.

Did you find a solution for having blamelist and blame emails on BuildKite?

Improving the Buildkite UI to have a good log scrubbing to the level of
what we have with buildbot is doable, but I didn't really see how to fix
the above.

(I'm doing the opposite move right now: leaving BuildKite for MLIR CI to
adopt buildbot).

> - Buildbot: I removed all the libc++/libc++abi/libunwind buildbots over
> the past year.
> - Green Dragon: Ditto, I removed everything and we have Mac builders in
> BuildKite.
> - GitHubActions: Nobody's using that yet AFAICT.
> I will actually have a talk at the upcoming Dev Meeting where I will
> advocate for all projects moving to the same model, since we've had so many
> incredible benefits from doing it in libc++ & friends.
> Cheers,
> Louis
>> Michael
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