[11u] RFR(S): 8241234: Unify monitor enter/exit runtime entries.

[Andrew Haley]

On 17/08/2020 22:54, Doerr, Martin wrote:
> Hi,
> 
> I'd like to backport https://bugs.openjdk.java.net/browse/JDK-8241234 to JDK11u.
> 
> Original JDK15 patch (https://hg.openjdk.java.net/jdk/jdk/rev/87c506c8be63) doesn't fit to JDK11u because the locking code has been reworked by https://bugs.openjdk.java.net/browse/JDK-8229844
> As mentioned by Vladimir, there's already a GraalVM version available which consists of 2 patches (original + addon) and which can be applied:
> https://github.com/graalvm/labs-openjdk-11/commit/6c162cb15262e6aa77e36eb3a268320ef0a206a4
> https://github.com/graalvm/labs-openjdk-11/commit/6a28a618cdbe595f9a3993e0eb63c01ccae1a528
> Only JVMCI part from GraalVM doesn't apply automatically. The version of this file from JDK15 is very simple and fits perfectly.
> 
> Please review the JDK11u backport webrev:
> http://cr.openjdk.java.net/~mdoerr/8241234_monitorenterexit_11u/webrev.00/

Why is anyone backporting a P4 Enhancement? Seems weird.


-- 
Andrew Haley  (he/him)
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
https://keybase.io/andrewhaley
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