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Date:   Fri, 20 Nov 2020 11:47:21 -0800
From:   Kees Cook <>
To:     Sami Tolvanen <>
Cc:     Nick Desaulniers <>,
        Masahiro Yamada <>,
        Steven Rostedt <>,
        Will Deacon <>,
        Josh Poimboeuf <>,
        Peter Zijlstra <>,
        Greg Kroah-Hartman <>,
        "Paul E. McKenney" <>,
        clang-built-linux <>,
        Kernel Hardening <>,
        linux-arch <>,
        Linux ARM <>,
        Linux Kbuild mailing list <>,
        LKML <>,
Subject: Re: [PATCH v7 02/17] kbuild: add support for Clang LTO

On Fri, Nov 20, 2020 at 08:23:11AM -0800, Sami Tolvanen wrote:
> Changing the ThinLTO config to a choice and moving it after the main
> LTO config sounds like a good idea to me. I'll see if I can change
> this in v8. Thanks!

Originally, I thought this might be a bit ugly once GCC LTO is added,
but this could be just a choice like we're done for the stack
initialization. Something like an "LTO" choice of NONE, CLANG_FULL,
CLANG_THIN, and in the future GCC, etc.

Kees Cook

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