[PATCH RFC v1] Dockerfile: Have "sandbox" build with i386 toolchain not x86_64 toolchain

[Simon Glass]

Hi Tom,

On Tue, 5 Nov 2024 at 09:54, Tom Rini <trini at konsulko.com> wrote:
>
> A long time ago, we had to use "i386" and "x86_64" toolchains for our
> x86 platforms, depending on the target. We then moved to being able to
> use the single "i386" toolchain to support all x86 platforms. At the
> same time, we had been building sandbox with our "x86_64" toolchain in
> CI. When x86 switched to being able to use a single toolchain we did not
> update our CI buildman file to match. Do this now as we want to ensure
> that sandbox is built with the same compiler version the rest of our
> platforms are and not the host one.
>
> Signed-off-by: Tom Rini <trini at konsulko.com>
> ---
> Cc: Simon Glass <sjg at chromium.org>
>
> I'm posting this as an RFC to start the discussion as when I mentioned
> this to Simon on IRC, he was very much not in agreement.
>
> My main argument is this, sandbox needs to use the same toolchain that
> we compile (virtually) all other platforms with as one of the points is
> to be able to catch warnings and compiler behavior changes as soon as
> possible in our CI. And just like how developers can use
> distribution-provided toolchains today, nothing changes in that regard,
> we only make CI be more consistent now.

OK, that makes some sense to me, actually. It isn't the toolchain that
people will be using, but catching things earlier seems good.

The main concern I have is that we are not testing sandbox on the
toolchain that everyone will be using. But I haven't noticed failures
in CI which I cannot repeat locally, so we can cross that bridge when
we come to it.

Reviewed-by: Simon Glass <sjg at chromium.org>

> ---
>  tools/docker/Dockerfile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/docker/Dockerfile b/tools/docker/Dockerfile
> index 967ac89fbde8..e158bab6e570 100644
> --- a/tools/docker/Dockerfile
> +++ b/tools/docker/Dockerfile
> @@ -280,7 +280,7 @@ RUN /bin/echo -e "[toolchain]\nroot = /usr" > ~/.buildman
>  RUN /bin/echo -e "kernelorg = /opt/gcc-13.2.0-nolibc/*" >> ~/.buildman
>  RUN /bin/echo -e "\n[toolchain-prefix]\nxtensa = /opt/2020.07/xtensa-dc233c-elf/bin/xtensa-dc233c-elf-" >> ~/.buildman;
>  RUN /bin/echo -e "\n[toolchain-alias]\nsh = sh2" >> ~/.buildman
> -RUN /bin/echo -e "\nsandbox = x86_64" >> ~/.buildman
> +RUN /bin/echo -e "\nsandbox = i386" >> ~/.buildman
>  RUN /bin/echo -e "\nx86 = i386" >> ~/.buildman;
>
>  # Add mkbootimg tool
> --
> 2.43.0
>

Regards,
Simon