RFR: 8328306: AArch64: MacOS lazy JIT "write xor execute" switching [v3]

[Andrew Haley]

On Tue, 19 Aug 2025 06:45:03 GMT, David Holmes <dholmes at openjdk.org> wrote:

> I think an assert so we gradually eradicate these fallback cases is a good idea. Just hope the stacktrace shows us where we should have placed the call.
> 
> But as Dean points out, we need a way to test the fallback ... maybe a gtest?

I added `StressWXHealing` and `TraceWXHealing`, which shows this fallback works. I'll think about how to do a gtest.

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PR Review Comment: https://git.openjdk.org/jdk/pull/26562#discussion_r2371927367