linux-kernel - Re: [PATCH v3] arm: rust: Enable Rust support for ARMv7

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Message-ID: <0414bdb1-2258-4164-af60-c40118d0d7f4@gmail.com>
Date: Fri, 31 Jan 2025 00:10:10 +0100
From: Christian Schrefl <chrisi.schrefl@...il.com>
To: 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>, Alice Ryhl <aliceryhl@...gle.com>,
 Trevor Gross <tmgross@...ch.edu>, Jonathan Corbet <corbet@....net>,
 Russell King <linux@...linux.org.uk>, Rudraksha Gupta <guptarud@...il.com>,
 Ard Biesheuvel <ardb@...nel.org>, Geert Stappers <stappers@...ppers.nl>,
 Andrew Lunn <andrew@...n.ch>, Jamie Cunliffe <Jamie.Cunliffe@....com>,
 Sven Van Asbroeck <thesven73@...il.com>
Cc: rust-for-linux@...r.kernel.org, linux-doc@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3] arm: rust: Enable Rust support for ARMv7

On 23.01.25 11:40 PM, Christian Schrefl wrote:
> This commit allows building ARMv7 kernels with Rust support.
> 
> The rust core library expects some __eabi_... functions
> that are not implemented in the kernel.
> Those functions are some float operations and __aeabi_uldivmod.
> For now those are implemented with define_panicking_intrinsics!.
> 
> This is based on the code by Sven Van Asbroeck from the original
> rust branch and inspired by the AArch version by Jamie Cunliffe.
> 
> I have tested the rust samples and a custom simple MMIO module
> on hardware (De1SoC FPGA + Arm A9 CPU).
> 
> Tested-by: Rudraksha Gupta <guptarud@...il.com>
> Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>
> Acked-by: Miguel Ojeda <ojeda@...nel.org>
> Tested-by: Miguel Ojeda <ojeda@...nel.org>
> Acked-by: Ard Biesheuvel <ardb@...nel.org>
> Signed-off-by: Christian Schrefl <chrisi.schrefl@...il.com>
> ---
> I've updated my Rust ARMv7 patches. 
> Not much has changed since v2 but I want to send it out again
> before sending it to Russell's ARM patch tracker, since I should
> hopefully have more time to work on this again.
> 
> I'm not sure how exactly the patch tracker works, I assume I
> should just sent it to the tracker once all review comments are 
> addressed and it has sat in the mailing list for some time? 
> 
> I've kept the Tags from v2 since nothing signifficant has changed,
> I hope thats fine with everyone.
> ---

I have now submitted this as:
https://www.armlinux.org.uk/developer/patches/viewpatch.php?id=9441/1

I hope I've done that correctly.

Cheers
Christian