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From:   Florian Weimer <fweimer@redhat.com>
To:     Nick Desaulniers <ndesaulniers@google.com>
Cc:     Arnd Bergmann <arnd@kernel.org>,
        Masahiro Yamada <masahiroy@kernel.org>,
        "Jose E. Marchesi" <jemarch@gnu.org>,
        linux-toolchains@vger.kernel.org,
        clang-built-linux <llvm@lists.linux.dev>,
        LKML <linux-kernel@vger.kernel.org>,
        Carlos O'Donell <carlos@redhat.com>
Subject: Re: plumbers session on syscall wrapping and kernel header libc
 circular depdence?
References: <CAKwvOdmwyFDYKMpq0dcvbq06drtZonpNJ3PqLx2RMBE00beHZA@mail.gmail.com>
Date:   Tue, 19 Apr 2022 12:46:48 +0200
In-Reply-To: <CAKwvOdmwyFDYKMpq0dcvbq06drtZonpNJ3PqLx2RMBE00beHZA@mail.gmail.com>
        (Nick Desaulniers's message of "Fri, 15 Apr 2022 10:48:13 -0700")
Message-ID: <87lew14ag7.fsf@oldenburg.str.redhat.com>
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* Nick Desaulniers:

> Hi Florian, Arnd, and Masahiro,
> Jose and I are currently in the planning process to put together a
> Kernel+Toolchain microconference track at Linux Plumbers Conference
> this year (Sept 12-14) in Dublin, Ireland.

I'm not sure if I will be able to travel by that time.

> Would you all be interested in a session (if you're planning on
> attending) discussing syscall wrapping for libc's and UAPI circular
> dependency on the libc?
>
> Masahiro and I were recently discussing the feasibility of building
> the kernel UAPI header tests with -nostdinc, but there are some
> interesting complications perhaps worth sharing with others?

To be honest, that doesn't seem to be a good use of a session slot.
Surely we can figure out a way to solve this issue offline (and if it's
a problem worth solving)?

(I expect that using -nostdinc makes it more difficult to support
compilers which are not GCC-compatible.)

Thanks,
Florian