[foreign-abi] RFR: 8248420: Add a variant of VaList::make which takes a NativeScope [v6]

[Maurizio Cimadamore]

On Thu, 16 Jul 2020 14:02:49 GMT, Jorn Vernee <jvernee at openjdk.org> wrote:

> > From user perspective it does look simpler, as now all va lists behave similarly. One minor comment is that, I think,
> > you can use just a memory scope to track liveness, instead of creating a full segment (since you never really use its
> > segment-y properties)
> 
> Using a MemoryScope doesn't work out of the box since we can't register it with the NativeScope. That would require
> quite a bit of surgery to AbstractNativeScope it seems. While I think it's possible, I think we should keep the
> 'damage' minimal, since this is already a bit of a hack.

Sorry - forgot about the NS use case

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PR: https://git.openjdk.java.net/panama-foreign/pull/237