[edk2-devel] [PATCH v2] ArmPkg/CompilerIntrinsicsLib: provide atomics intrinsics

[Leif Lindholm]

On Thu, May 21, 2020 at 22:22:58 +0200, Laszlo Ersek wrote:
> On 05/21/20 16:16, Leif Lindholm wrote:
> 
> > OK, then I would vote *for* merging the patch regardless. We know how
> > long some toolchain versions can stick around simply because they were
> > mentioned in some blog post somewhere that ended up high in search
> > rankings.
> > 
> > Once gcc 10.2 is released (and we have verified the problem can be
> > worked around elsewhere), I guess we could add a note saying "once all
> > gcc 10.0 and 10.1 toolchains are considered obsolete, this file can
> > be deleted".
> 
> I think we can expect all distros that ship gcc-10 to eventually migrate
> to gcc-10.2+. Until then, this patch should hopefully work. (I'm quite
> annoyed by having to call the patch "temporary", as it feels very
> technically impressive.)
> 
> So I think I agree with Leif, with a small modification to the idea:
> rather than a *note* saying "back this out once 10.0 and 10.1 have been
> replaced by 10.2+ in all 'large' distros"

That isn't actually exatly what I meant - I meant properly obsolete
as in "we are now reasonably certain no one is still using some silly
ancient cross compiler they checked into their build infrastructure
years ago".

> , I would suggest filing a *BZ*
> for the same. And I recommend making the new BZ dependent on
> TianoCore#2723 (i.e. the present BZ).

But I don't object to that approach.

Regards,

Leif

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