[aarch64-port-dev ] AARCH64: Changes to HotSpot shared code

Andrew Haley aph at redhat.com
Wed Nov 12 11:42:51 UTC 2014


On 11/12/2014 11:40 AM, Lindenmaier, Goetz wrote:
> I think EM_AARCH64 is not defined in my case because the gcc / environment 
> is too old to know about AARCH.

Okay, I can #ifdef that.

> metaspace:
> Ok, I think I missed that you can ignore the shift altogether as the compressed class space
> is enforced to be < 0xc0000000. Further, klasses are never 0.
> So on ppc we will still prefer to shift if the heap is < 32g, but 4G alignment helps in the
> other cases as long as the compressed class space is smaller than 4G.

I suppose we're getting close to declaring that this should really be
handled by the back end.

Andrew.



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