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Date:   Thu, 9 Nov 2017 08:51:43 -0800
From:   Sami Tolvanen <>
To:     Maxim Kuvyrkov <>
Cc:     Yury Norov <>,
        LKML <>,,
        Greg Hackmann <>,
        Kees Cook <>,
        Matthias Kaehlcke <>,
        Nick Desaulniers <>,
        Alex Matveev <>,
        Andi Kleen <>
Subject: Re: [PATCH 13/15] arm64: fix mrs_s/msr_s macros for clang LTO

On Thu, Nov 09, 2017 at 07:48:06AM +0300, Maxim Kuvyrkov wrote:
> Regarding CONFIG_* options, I would expect most of the configuration
> changes to be equally valid for both GCC's and Clang's LTO support.
> Sami, I don't think it's fair to ask you to support both Clang and GCC in
> your patchset, but, where changes are obviously toolchain-agnostic, could
> you use CONFIG_LTO?  And use CONFIG_LTO_CLANG for Clang-specific parts?

Sure, using CONFIG_LTO for common code and CONFIG_LTO_CLANG for clang-
specific parts sounds good.


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