RFR: 8294729: [s390] Implement nmethod entry barriers

[Tyler Steele]

On Thu, 20 Oct 2022 12:22:27 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

>> After a bit more investigation, I believe I see the reasoning behind using the suggested computation for the VM-Call's argument. It seems the CodeCache miss is the issue, not the argument, so I am focusing my efforts on understanding what is happening there.
>
> You just used the return_pc address of the wrong frame.

Right. I see the difference mentioned in your other comment. I have made this change. Thanks for clarifying.

-------------

PR: https://git.openjdk.org/jdk/pull/10558