linux-kernel - Re: make ARCH=arm64 rustdoc fails on a x86 host with SCS enabled

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Message-ID: <CANiq72nvbKiWiMx6XwRyLUOWxZAEAQgTY9MdqtpjAG+kbk72Sg@mail.gmail.com>
Date: Tue, 22 Jul 2025 14:40:32 +0200
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Cc: 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 <lossin@...nel.org>, Andreas Hindborg <a.hindborg@...nel.org>, 
	Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>, 
	Danilo Krummrich <dakr@...nel.org>, rust-for-linux@...r.kernel.org, 
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: make ARCH=arm64 rustdoc fails on a x86 host with SCS enabled

On Tue, Jul 22, 2025 at 12:53 PM Konrad Dybcio
<konrad.dybcio@....qualcomm.com> wrote:
>
> Trying to build rustdoc as part of an arm64 kernel build on an x86
> host results in a number of errors. Looks like we're ignoring the
> -Zfixed-18 flag (arch/arm64/Makefile) at some point in the build
> process, but I wasn't able to track it down it myself. Found on
> next-20250722 (today).
>
> Disabling SCS works around the issue, but that's less than ideal.

Thanks, I can reproduce it -- I will send a patch.

Cheers,
Miguel