gh-144712: Export _Py_jit_entry symbol via PyAPI_DATA

[ashm-dev]

• Issue: Duplicate symbol _Py_jit_entry when built with --enable-exterimental-jit #144712

[Fidget-Spinner]

Thanks for doing this @jjhelmus does this fix your problems?

[Fidget-Spinner]

@diegorusso does this look right to you?

[diegorusso]

Please hold on that. This #146071 needs to go in first and likely this needs to be adapted.

[ashm-dev]

@diegorusso #146071 was merged on 2026-05-02. I've rebased onto current main and adapted the initializer (_PyJIT → _PyJIT_Entry). Could you take another look? @Fidget-Spinner the change is small enough that your earlier approval should still apply — pinging in case you'd like to re-confirm before merge.

[ashm-dev]

The Ubuntu (free-threading) / build and test failure is unrelated — the runner received a shutdown signal mid-run (exit code 143, "runner has received a shutdown signal"). All tests passed up to that point. A rerun should be green.

[ashm-dev]

@Fidget-Spinner @diegorusso, could you please take another look?

[ashm-dev]

@diegorusso #146071 landed in May, this PR is rebased on top of it. Can the hold be lifted? @Fidget-Spinner your approval still stands, could you merge once Diego confirms?

[Fidget-Spinner]

I'm waiting for Diego.

[bedevere-app]

A Python core developer has requested some changes be made to your pull request before we can consider merging it. If you could please address their requests along with any other requests in other reviews from core developers that would be appreciated.

Once you have made the requested changes, please leave a comment on this pull request containing the phrase I have made the requested changes; please review again. I will then notify any core developers who have left a review that you're ready for them to take another look at this pull request.

[ashm-dev]

I have made the requested changes; please review again

[bedevere-app]

Thanks for making the requested changes!

@Fidget-Spinner, @diegorusso: please review the changes made to this pull request.