[aarch64-port-dev ] Fwd: RFR: Backport: 8216989: CardTableBarrierSetAssembler::gen_write_ref_array_post_barrier() does not check for zero length on AARCH64

[Andrew Dinn]

On 07/05/2020 10:53, Andrew Dinn wrote:
> Forwarding to also include jdk8u-dev
> 
> 
> -------- Forwarded Message --------
> Subject: [aarch64-port-dev ] RFR: Backport: 8216989:
> CardTableBarrierSetAssembler::gen_write_ref_array_post_barrier() does
> not check for zero length on AARCH64
> Date: Thu, 7 May 2020 10:14:23 +0100
> From: Andrew Haley <aph at redhat.com>
> To: aarch64-port-dev at openjdk.java.net <aarch64-port-dev at openjdk.java.net>
> 
> The final patch for this bug was very complex and did not apply to
> jdk8u. This patch is almost identical to Dmitrij Pochepko's first
> proposal, so he still gets the credit. It is also far, far simpler
> than the final patch.
> 
> http://cr.openjdk.java.net/~aph/aarch64-jdk8u/8216989.patch
Hmm, indeed, unbelievably simpler and yet still correct. All those
layers of abstraction the upstream patch had to work its way through
must be buying us something though, surely? ;->

regards,


Andrew Dinn
-----------
Senior Principal Software Engineer
Red Hat UK Ltd
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