Re: [PATCH 0/4] amd64_edac: misc fixes

[H. Peter Anvin]

Borislav Petkov wrote:
> Actually, popcnt got added to gas in July 2006 so checking the gas
> version should suffice, IMHO.

gas is part of binutils.

> Anyway, I proposed something similar before but Andrew suggested that we
> should simply slap in the opcode so we don't need the Kbuild changes.
> The advantage of the approach is that it works unconditionally on all
> toolchains and introduces less code changes. Hmm...

That really sucks, though, in the long run.  I personally prefer to have
the "right thing" -- which in this case is probably gcc intrinsics --
and then a fallback that will gradually fall out of use.

	-hpa

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