From: Peter Zijlstra <peterz@infradead.org>
To: Kees Cook <keescook@google.com>
Cc: "Yatsina, Marina" <marina.yatsina@intel.com>,
David Woodhouse <dwmw2@infradead.org>,
Chandler Carruth <chandlerc@google.com>,
"Kreitzer, David L" <david.l.kreitzer@intel.com>,
"Grischenko, Andrei L" <andrei.l.grischenko@intel.com>,
"rnk@google.com" <rnk@google.com>,
LLVM Developers <llvm-dev@lists.llvm.org>,
"ehsan@mozilla.com" <ehsan@mozilla.com>,
"Tayree, Coby" <coby.tayree@intel.com>,
Matthias Braun <matze@braunis.de>,
Dean Michael Berris <dean.berris@gmail.com>,
James Y Knight <jyknight@google.com>,
Guenter Roeck <linux@roeck-us.net>, X86 ML <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Alan Cox <gnomes@lxorguk.ukuu.org.uk>,
Rik van Riel <riel@redhat.com>, Andi Kleen <ak@linux.intel.com>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Jiri Kosina <jikos@kernel.org>,
Andy Lutomirski <luto@amacapital.net>,
"Hansen, Dave" <dave.hansen@intel.com>,
Tim Chen <tim.c.chen@linux.intel.com>,
Greg Kroah-Hartman <gregkh@linux-foundation.org>,
Paul Turner <pjt@google.com>, Stephen Hines <srhines@google.com>,
Nick Desaulniers <ndesaulniers@google.com>
Subject: Re: clang asm-goto support (Was Re: [PATCH v2] x86/retpoline: Add clang support)
Date: Wed, 14 Feb 2018 19:39:55 +0100 [thread overview]
Message-ID: <20180214183955.GS25201@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <CAGXu5jKDAKZYwvi2FAvTOsuPdu1wrqH8bckutbO1BGDyGx+U4A@mail.gmail.com>
On Wed, Feb 14, 2018 at 09:31:22AM -0800, Kees Cook wrote:
> On Wed, Feb 14, 2018 at 1:08 AM, Peter Zijlstra <peterz@infradead.org> wrote:
> > If you ever get to the point where it makes sense to build a kernel with
> > LLVM [...]
>
> Just to speak to this point in particular: it makes sense to build
> kernels with LLVM right now. It's already happened; millions of Pixel
> 2 phones are already running with Clang-built kernels. And even if
> you're only interested in x86, that works too.
Only if you really don't care about performance. And as should be
evident from the rest of this thread, you soon won't be able to build
it anymore.
next prev parent reply other threads:[~2018-02-14 18:39 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-14 0:28 Kees Cook
2018-02-14 8:33 ` Yatsina, Marina
2018-02-14 8:41 ` Chandler Carruth
2018-02-14 9:10 ` Peter Zijlstra
2018-02-14 10:44 ` Thomas Gleixner
2018-02-14 9:53 ` Greg Kroah-Hartman
2018-02-14 10:07 ` Yatsina, Marina
2018-02-14 10:17 ` Chandler Carruth
2018-02-14 9:08 ` Peter Zijlstra
2018-02-14 9:52 ` Yatsina, Marina
2018-02-14 10:34 ` Peter Zijlstra
2018-02-14 12:04 ` Ingo Molnar
2018-02-14 23:07 ` Ingo Molnar
2018-02-14 17:39 ` Linus Torvalds
2018-02-14 17:31 ` Kees Cook
2018-02-14 18:39 ` Peter Zijlstra [this message]
2018-02-14 15:31 ` James Y Knight
2018-02-14 17:21 ` Andy Lutomirski
2018-02-14 17:43 ` Linus Torvalds
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