Hi,
As an experiment, I thought I would try moving the thread state (what
you get from _PyThreadState_GET() ) to TLS.
https://github.com/python/cpython/compare/master...markshannon:threadstate_in_tls
It works, passing all the tests, and seems sound.
It is a small patch (< 50 lines) and doesn't increase the overall code size.
My branch is GCC/Clang only, so will need a bit of extra code for
Windows. It should only need a few more lines; I haven't done it as I
don't have a Windows machine to test it on.
This is a *much* cleaner approach to removing the global variable than
adding lots of extra parameters all over the place.
Cheers,
Mark.
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