[llvm-dev] retpoline mitigation and 6.0

David Woodhouse via llvm-dev llvm-dev at lists.llvm.org
Thu Feb 8 18:21:27 PST 2018

On Fri, 2018-02-09 at 01:18 +0000, David Woodhouse wrote:
> For now I'm just going to attempt to work around it like this in the
> kernel, so I can concentrate on the retpoline bits:
>  http://david.woodhou.se/clang-percpu-hack.patch

32-bit doesn't boot. Built without CONFIG_RETPOLINE and with Clang 5.0
(and the above patch) it does. I'm rebuilding a Release build of
llvm/clang so that experimental kernel builds hopefully take less than
an hour, and will prod further in the morning.
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