From: Sami Tolvanen <samitolvanen@google.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: "Alice Ryhl" <aliceryhl@google.com>,
"Masahiro Yamada" <masahiroy@kernel.org>,
"Nathan Chancellor" <nathan@kernel.org>,
"Nicolas Schier" <nicolas@fjasle.eu>,
"Miguel Ojeda" <ojeda@kernel.org>, "Kees Cook" <kees@kernel.org>,
"Alex Gaynor" <alex.gaynor@gmail.com>,
"Wedson Almeida Filho" <wedsonaf@gmail.com>,
"Boqun Feng" <boqun.feng@gmail.com>,
"Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <benno.lossin@proton.me>,
"Andreas Hindborg" <a.hindborg@samsung.com>,
"Matthew Maurer" <mmaurer@google.com>,
linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
rust-for-linux@vger.kernel.org
Subject: Re: [PATCH 2/2] rust: cfi: add support for CFI_CLANG with Rust
Date: Tue, 30 Jul 2024 08:24:15 -0700 [thread overview]
Message-ID: <CABCJKuf+=bxrZphtFZ+N_t2whCS0gx2GVHybTzcNmY6TX6c7cw@mail.gmail.com> (raw)
In-Reply-To: <20240730103236.GK33588@noisy.programming.kicks-ass.net>
On Tue, Jul 30, 2024 at 3:32 AM Peter Zijlstra <peterz@infradead.org> wrote:
>
> On Tue, Jul 30, 2024 at 09:40:12AM +0000, Alice Ryhl wrote:
> > From: Matthew Maurer <mmaurer@google.com>
> >
> > Make it possible to use the Control Flow Integrity (CFI) sanitizer when
> > Rust is enabled. Enabling CFI with Rust requires that CFI is configured
> > to normalize integer types so that all integer types of the same size
> > and signedness are compatible under CFI.
>
> I am assuming -- because I have to, because you're not actually saying
> anyting -- that this is fully compatible with the C version and all the
> fun and games we play with rewriting the function prologue for FineIBT
> and the like also work?
Rust uses the same LLVM backend for the actual code generation, so it
should be fully compatible.
Sami
next prev parent reply other threads:[~2024-07-30 15:24 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-30 9:40 [PATCH 0/2] Rust KCFI support Alice Ryhl
2024-07-30 9:40 ` [PATCH 1/2] cfi: add CONFIG_CFI_ICALL_NORMALIZE_INTEGERS Alice Ryhl
2024-07-30 9:51 ` Alice Ryhl
2024-07-30 10:28 ` Peter Zijlstra
2024-07-30 15:19 ` Sami Tolvanen
2024-07-30 16:04 ` Peter Zijlstra
2024-07-30 16:10 ` Alice Ryhl
2024-07-30 11:38 ` Miguel Ojeda
2024-07-30 12:13 ` Peter Zijlstra
2024-07-30 16:10 ` Alice Ryhl
2024-07-30 18:01 ` Miguel Ojeda
2024-07-30 9:40 ` [PATCH 2/2] rust: cfi: add support for CFI_CLANG with Rust Alice Ryhl
2024-07-30 10:32 ` Peter Zijlstra
2024-07-30 15:24 ` Sami Tolvanen [this message]
2024-07-30 16:03 ` Peter Zijlstra
2024-07-30 16:26 ` Alice Ryhl
2024-07-30 11:50 ` Miguel Ojeda
2024-07-30 16:44 ` Alice Ryhl
2024-07-30 17:29 ` Miguel Ojeda
2024-07-30 10:38 ` [PATCH 0/2] Rust KCFI support Gary Guo
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