linux-hardening - Re: [PATCH 1/4] Compiler Attributes: Add Clang's __pass_object

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Message-ID: <CANiq72=aDRzxV0DZ6PNFXL-Z=NBAmyaMwL=MNxaOEWVSo8PZ1Q@mail.gmail.com>
Date:   Wed, 2 Feb 2022 02:13:58 +0100
From:   Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     Miguel Ojeda <ojeda@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nathan Chancellor <nathan@...nel.org>, llvm@...ts.linux.dev,
        George Burgess IV <gbiv@...gle.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-hardening@...r.kernel.org,
        linux-security-module <linux-security-module@...r.kernel.org>
Subject: Re: [PATCH 1/4] Compiler Attributes: Add Clang's __pass_object_size

On Wed, Feb 2, 2022 at 2:11 AM Miguel Ojeda
<miguel.ojeda.sandonis@...il.com> wrote:
>
> For `__diagnose_as_builtin__`, I only see it on Clang trunk, so I
> assume >= 14, thus could you please add:
>
>     * Optional: only supported since clang >= 14.

...and the other two too:

>     * Optional: not supported by gcc.
>     * Optional: not supported by icc.

Cheers,
Miguel