linux-kernel - Re: [PATCH] rust: Ignore preserve-most functions

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Message-ID: <1750d6ba-b874-4fca-bb29-b98f94fe94c0@gmail.com>
Date:   Fri, 3 Nov 2023 20:17:02 -0300
From:   Martin Rodriguez Reboredo <yakoyoku@...il.com>
To:     Matthew Maurer <mmaurer@...gle.com>,
        Miguel Ojeda <ojeda@...nel.org>,
        Alex Gaynor <alex.gaynor@...il.com>,
        Wedson Almeida Filho <wedsonaf@...il.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     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@...sung.com>,
        Alice Ryhl <aliceryhl@...gle.com>, Tom Rix <trix@...hat.com>,
        rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev
Subject: Re: [PATCH] rust: Ignore preserve-most functions

On 10/31/23 17:19, Matthew Maurer wrote:
> Neither bindgen nor Rust know about the preserve-most calling
> convention, and Clang describes it as unstable. Since we aren't using
> functions with this calling convention from Rust, blocklist them.
> 
> These functions are only added to the build when list hardening is
> enabled, which is likely why others didn't notice this yet.
> 
> Signed-off-by: Matthew Maurer <mmaurer@...gle.com>
> ---
> [...]
Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@...il.com>