linux-kernel - Re: [PATCH] x86/boot: define CC_HAVE_ASM

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Message-ID: <20180926085645.GB5745@zn.tnic>
Date:   Wed, 26 Sep 2018 10:56:45 +0200
From:   Borislav Petkov <bp@...e.de>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>, mingo@...hat.com,
        hpa@...or.com, x86@...nel.org,
        "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Matthias Kaehlcke <mka@...omium.org>,
        Kees Cook <keescook@...omium.org>,
        Cao jin <caoj.fnst@...fujitsu.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86/boot: define CC_HAVE_ASM_GOTO

On Tue, Sep 25, 2018 at 02:08:04PM -0700, Nick Desaulniers wrote:

<snip>

> so this is hidden from GCC.  I can include this information in the
> commit message for a v2 if you'd like?

Yes please - in a condensed form. But explaining what happens makes it
much more clear, thanks for taking the time.

> We're in the process of adding asm goto support to Clang.  I'm helping
> test by working through compiling the Linux kernel with Clang for
> x86_64.  The patch set still has some kinks we're working out, but
> having this fix in place will make for smoother sailing once we're
> good to go, and we would appreciate having it.

I see.

Thx.

-- 
Regards/Gruss,
    Boris.

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