linux-kernel - Re: [RFC PATCH 4/7] kconfig: support new special property shell=

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Date:   Mon, 12 Feb 2018 09:37:50 -0800
From:   Kees Cook <keescook@...omium.org>
To:     David Woodhouse <dwmw2@...radead.org>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Ulf Magnusson <ulfalizer@...il.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Nicolas Pitre <nicolas.pitre@...aro.org>,
        "Luis R . Rodriguez" <mcgrof@...e.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Sam Ravnborg <sam@...nborg.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Pavel Machek <pavel@....cz>,
        linux-s390 <linux-s390@...r.kernel.org>,
        Jiri Kosina <jkosina@...e.cz>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Tejun Heo <tj@...nel.org>, Ingo Molnar <mingo@...nel.org>,
        "Van De Ven, Arjan" <arjan.van.de.ven@...el.com>,
        Arnd Bergmann <arnd@...db.de>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [RFC PATCH 4/7] kconfig: support new special property shell=

On Mon, Feb 12, 2018 at 9:36 AM, David Woodhouse <dwmw2@...radead.org> wrote:
> On Mon, 2018-02-12 at 09:33 -0800, Kees Cook wrote:
>> On Mon, Feb 12, 2018 at 9:05 AM, Peter Zijlstra <peterz@...radead.org> wrote:
>> > On Mon, Feb 12, 2018 at 08:56:31AM -0800, Kees Cook wrote:
>> >> That would be bad: Android exclusively builds with clang.
>> >
>> > So implement asm-goto already, and do asm-cc-output while you're at it.
>>
>> Yup, I've already been asking for it. I'm hoping there will be more
>> time/attention now that retpoline is "done".
>
> Retpoline isn't done for 32-bit x86.
>
> https://bugs.llvm.org/show_bug.cgi?id=36329

Understood. I should have said: s/now that/when/

-Kees

-- 
Kees Cook
Pixel Security