linux-kernel - Re: [PATCH v2] Kbuild: fix issues with rustc-option

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Message-ID: <CAGSQo03_GZCJrnp9WPxo2T3GJz8TCtucHNx6_rAr7xfJ6ybukA@mail.gmail.com>
Date: Tue, 8 Oct 2024 13:22:56 -0700
From: Matthew Maurer <mmaurer@...gle.com>
To: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
Cc: Alice Ryhl <aliceryhl@...gle.com>, Masahiro Yamada <masahiroy@...nel.org>, 
	Nathan Chancellor <nathan@...nel.org>, Nicolas Schier <nicolas@...sle.eu>, Miguel Ojeda <ojeda@...nel.org>, 
	Alex Gaynor <alex.gaynor@...il.com>, Boqun Feng <boqun.feng@...il.com>, 
	Gary Guo <gary@...yguo.net>, Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
	Benno Lossin <benno.lossin@...ton.me>, Andreas Hindborg <a.hindborg@...nel.org>, 
	Trevor Gross <tmgross@...ch.edu>, linux-kbuild@...r.kernel.org, 
	linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org
Subject: Re: [PATCH v2] Kbuild: fix issues with rustc-option

On Tue, Oct 8, 2024 at 1:22 PM Miguel Ojeda
<miguel.ojeda.sandonis@...il.com> wrote:
>
> On Tue, Oct 8, 2024 at 8:25 PM Matthew Maurer <mmaurer@...gle.com> wrote:
> >
> > Err, slight amendment - I think you want `-o $$TMP`, and not
> > `--out-dir $$TMPOUT`
>
> We need the `--out-dir` to avoid temporary files being created in the
> current working directory.
In that case we should omit `-o $$TMP`, because `rustc` is emitting a
warning that it's ignoring `--out-dir` because `-o` is set.
>
> Cheers,
> Miguel