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* GH-100987: Allow objects other than code objects as the "executable" of an ↵Mark Shannon2023-06-141-5/+5
| | | | | | | | | | internal frame. (GH-105727) * Add table describing possible executable classes for out-of-process debuggers. * Remove shim code object creation code as it is no longer needed. * Make lltrace a bit more robust w.r.t. non-standard frames.
* GH-105229: Remove remaining two-codeunit superinstructions (GH-105326)Mark Shannon2023-06-081-14/+0
| | | | * Remove LOAD_CONST__LOAD_FAST and LOAD_FAST__LOAD_CONST superinstructions.
* GH-105229: Replace some superinstructions with single instruction ↵Mark Shannon2023-06-051-3/+0
| | | | equivalent. (GH-105230)
* GH-104584: Plugin optimizer API (GH-105100)Mark Shannon2023-06-021-14/+13
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* gh-103865: add monitoring support to LOAD_SUPER_ATTR (#103866)Carl Meyer2023-05-161-0/+5
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* GH-103082: Filter LINE events in VM, to simplify tool implementation. ↵Mark Shannon2023-05-121-17/+102
| | | | | | | | (GH-104387) When monitoring LINE events, instrument all instructions that can have a predecessor on a different line. Then check that the a new line has been hit in the instrumentation code. This brings the behavior closer to that of 3.11, simplifying implementation and porting of tools.
* gh-103845: Remove line & instruction instrumentations before adding them ↵Tian Gao2023-05-031-8/+33
| | | | back (GH-103851)
* GH-103082: Code cleanup in instrumentation code (#103474)Mark Shannon2023-04-291-31/+34
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* gh-84436: Implement Immortal Objects (gh-19474)Eddie Elizondo2023-04-221-2/+2
| | | | | | | | | This is the implementation of PEP683 Motivation: The PR introduces the ability to immortalize instances in CPython which bypasses reference counting. Tagging objects as immortal allows up to skip certain operations when we know that the object will be around for the entire execution of the runtime. Note that this by itself will bring a performance regression to the runtime due to the extra reference count checks. However, this brings the ability of having truly immutable objects that are useful in other contexts such as immutable data sharing between sub-interpreters.
* gh-103082: Fix shifted field initialization in `instrumentation.c` (GH-103561)Oleg Iarygin2023-04-211-4/+4
| | | Fix shifted field initialization in instrumentation.c
* Fix unused functions warnings in instrumentation.c (GH-103515)Benjamin Peterson2023-04-131-0/+4
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* GH-103082: Turn on branch events for FOR_ITER instructions. (#103507)Mark Shannon2023-04-131-0/+2
| | | Turn on branch events for FOR_ITER instructions.
* GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython ↵Mark Shannon2023-04-121-0/+2021
(GH-103083) * The majority of the monitoring code is in instrumentation.c * The new instrumentation bytecodes are in bytecodes.c * legacy_tracing.c adapts the new API to the old sys.setrace and sys.setprofile APIs
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