gh-124855: Fix jit perf (and lejit)

[Fidget-Spinner]

JIT builds are currently failing on main. This supersedes #126163. This wasn't caught because we don't run the JIT tests on pylifecycle.c

• Issue: Don't allow the JIT and perf support to be active at the same time #124855

[pablogsal]

I think we need to add skips to the tests in the Perf trampoline when the jit is activated

[pablogsal]

I have pushed a bunch of fixes to ensure we run the tests that check for anything perf without the JIT as we do in other places

[pablogsal]

This fails on windows for some reason

[pablogsal]

I think with my fix we can actually run the test so I am switching to that

[Fidget-Spinner]

Hmm I'm abit stumped. No clue why your fix isn't working :(.

[pablogsal]

It's because the test is running on isolated mode and therefore it ignores the environment flags

[pablogsal]

I pushed a fix that should do the trick

[Fidget-Spinner]

Still failing on Windows... not sure why

[Eclips4]

Okay, I finally set up my Windows environment and it seems that there is no PY_CORE_CFLAGS. Perhaps we can't currently determine if JIT is enabled on non-configure builds. Maybe it's time to add a PY_JIT variable to pyconfig.h?

[pablogsal]

Maybe we can land a version of this that just ignores warning lines in stderr and then undo that hack when we have JIT detection on windows.

This way we can move on and avoid having to revert

[mpage]

Maybe we can land a version of this that just ignores warning lines in stderr and then undo that hack when we have JIT detection on windows.

This way we can move on and avoid having to revert

I put up #126302 as a possible work-around.

[Eclips4]

Closing it due to merge of #126302. Thank you Pablo and Ken.