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gh-119786: Add jit.md. Move adaptive.md to a section of interpreter.md. (#127175)

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Irit Katriel 2024-12-06 16:36:06 +00:00 • committed by GitHub
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InternalDocs/code_objects.md
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@ -18,6 +18,11 @@ # Code objects
although they are often written to disk by one process and read back in by another.
The disk version of a code object is serialized using the
[marshal](https://docs.python.org/dev/library/marshal.html) protocol.
When a `CodeObject` is created, the function `_PyCode_Quicken()` from
[`Python/specialize.c`](../Python/specialize.c) is called to initialize
the caches of all adaptive instructions. This is required because the
on-disk format is a sequence of bytes, and some of the caches need to be
initialized with 16-bit values.
Code objects are nominally immutable.
Some fields (including `co_code_adaptive` and fields for runtime