[8u] request for approval: "8158260: PPC64: unaligned Unsafe.getInt can lead to the generation of illegal instructions"

[Vladimir Kozlov]

Changes looks good. I agree with exclusion of test.

Since it is only ppc64 changes you can push it yourself.

Note, we do run Hotspot changes through JPRT to push into 8u-dev.

Thanks,
Vladimir

On 6/22/16 2:35 AM, Volker Simonis wrote:
> Hi,
>
> could you please approve the backport of the following ppc64-only fixe
> to jdk8u-dev:
>
> 8158260: PPC64: unaligned Unsafe.getInt can lead to the generation of
> illegal instructions
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8158260
> Webrev: http://cr.openjdk.java.net/~simonis/webrevs/2016/8158260/
> Review: http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2016-June/023347.html
> URL: http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/5f3687f2143c
>
> The original change has a JTreg test which uses the new
> jdk.internal.misc.Unsafe class and some of its features like
> Unsafe.unalignedAccess() which are not available in jdk8 so I propose
> to exclude the test from the downport.
>
> Without the test the change only touches a ppc64 specific file and
> applies cleanly to jdk8u-dev:
>
> http://cr.openjdk.java.net/~simonis/webrevs/2016/8158260_8u
>
> As this backport is now truly "ppc64-only", can I push it directly to
> jdk8u-dev/hotspot or do I still need a sponsor?
>
> Thank you and best regards,
> Volker
>