[PATCH 05/15] Add hle.h base header

[Andi Kleen]

On Thu, Jan 10, 2013 at 01:27:08PM -0800, Roland McGrath wrote:
> > I prefer to not complete glibcize it. If people insist on it I'll
> > likely drop it and require new enough gcc / binutils instead.
> 
> I think that's the right thing to do anyhow.  That is, use empirical
> configure checks for the assembler/compiler features you use, and just

It works perfectly fine with older toolchains, just using this file.

> don't try to build the functionality at all if the tools don't support it.
> Remediation for old build tools is something we only do for code that is
> really essential.  This is an experimental feature that is nothing but
> optimization and only usable on hardware nobody has, so it is very far from
> it being a priority that it be supported in every build.

I don't think that's a fair characterization of TSX deployment.

-Andi