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Date:   Tue, 13 Feb 2018 16:28:56 -0800
From:   Kees Cook <>
To:     David Woodhouse <>,
        Chandler Carruth <>,
        Marina Yatsina <>
Cc:     Guenter Roeck <>, X86 ML <>,
        LKML <>,
        Alan Cox <>,
        Rik van Riel <>,
        Andi Kleen <>,
        Josh Poimboeuf <>,
        Tom Lendacky <>,
        Peter Zijlstra <>,
        Linus Torvalds <>,
        Jiri Kosina <>,
        Andy Lutomirski <>,
        Dave Hansen <>,
        Tim Chen <>,
        Greg Kroah-Hartman <>,
        Paul Turner <>,
        Stephen Hines <>,
        Nick Desaulniers <>
Subject: clang asm-goto support (Was Re: [PATCH v2] x86/retpoline: Add clang support)

On Tue, Feb 13, 2018 at 4:10 PM, David Woodhouse <> wrote:
> We also need to resolve the asm-goto thing.

Yes, this is becoming much more urgent, assuming we'll be raising the
minimum GCC version soon and drop support for lacking asm-goto...

Do you happen to know who the right people are to include to move the
discussion forward? I know various kernel folks that are passionate
about it, but I'm still getting to know who to talk with from llvm.

I see an earlier thread here:

It seems to end there? I'm still coming up to speed on it, so I'm
likely missing other context.


Kees Cook
Pixel Security

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