Messages in this thread | | | From | "PaX Team" <> | Date | Wed, 08 Jan 2014 13:04:51 +0100 | Subject | Re: [llvmlinux] [PATCH 4/4] x86, boot: Work around clang PR18415. |
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On 8 Jan 2014 at 11:21, David Woodhouse wrote:
> Clang's intrinsics ignore -mregparm=3 when they fall back to calling the > out-of-line implementations. Putting the args on the stack when memcpy() > expects them in registers is not a recipe for a happy kernel. > > This bites with -m32 too, so clang is presumably catastrophically > broken for the i386 kernel until this is fixed, unless I'm missing > something.
llvmlinux already carries my old patch (and some more) here: arch/i586/patches/0026-Add-own-versions-of-memcpy-and-memset-for-compilatio.patch
(see also my comment on the clang PR)
cheers, PaX Team
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