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From: Ian Jackson <ian.jackson@citrix.com>
To: Christian Lindig <christian.lindig@citrix.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wl@xen.org>,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	Andrew Cooper <Andrew.Cooper3@citrix.com>,
	"Tim \(Xen.org\)" <tim@xen.org>,
	George Dunlap <George.Dunlap@citrix.com>,
	Julien Grall <julien.grall@arm.com>,
	Jan Beulich <jbeulich@suse.com>, David Scott <dave@recoil.org>,
	Xen-devel <xen-devel@lists.xenproject.org>
Subject: Re: [Xen-devel] [PATCH 3/3] tools/ocaml: Introduce xenctrl ABI build-time checks
Date: Tue, 10 Sep 2019 10:57:11 +0100	[thread overview]
Message-ID: <23927.29559.385471.934984@mariner.uk.xensource.com> (raw)
In-Reply-To: <22C7C052-B208-4BA5-97D2-D17EED80A424@citrix.com>

Christian Lindig writes ("Re: [PATCH 3/3] tools/ocaml: Introduce xenctrl ABI build-time checks"):
> I understand the desire to automate this but would have kept the
> original proposal for these reasons: changes are rare enough, it is
> obvious how to extend the scheme, the approach stayed well within
> the respective languages. Adding parsers and code generators to the
> build system will make it more difficult to improve it, which at
> least for the OCaml part is very desirable. However, I’m not going
> to object to the patch.

I would love to have this all done in a more "proper" way.

However, in the meantime I do think it is essential to have a check
which actually ties the ocaml code right back to the Xen headers (the
latter being the canonical ABI definition).  Indeed the v1 patch in
this very thread had a mismatch between the ocaml and the BUILD_BUG_ON
list, which I only discovered when my checker threw an unexpected
error.

If there are other language bindings which have similar issues we
should check them too.

Ultimately I would prefer it if the Xen ABI were provided in a way
that was useable for automatically generating bindings.

> Acked-by: Christian Lindig <christian.lindig@citrix.com>

Thanks,
Ian.

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      reply	other threads:[~2019-09-10  9:57 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-09 17:12 [Xen-devel] [PATCH 1/3] tools/ocaml: Add missing X86_EMU_VPCI Ian Jackson
2019-09-09 17:12 ` [Xen-devel] [PATCH 2/3] tools/ocaml: Add missing CAP_PV Ian Jackson
2019-09-09 17:12 ` [Xen-devel] [PATCH 3/3] tools/ocaml: Introduce xenctrl ABI build-time checks Ian Jackson
2019-09-10  8:29   ` Christian Lindig
2019-09-10  9:57     ` Ian Jackson [this message]

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