8000 GH-103082: Filter LINE events in VM, to simplify tool implementation. by markshannon · Pull Request #104387 · python/cpython · GitHub
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GH-103082: Filter LINE events in VM, to simplify tool implementation. #104387

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Merged
merged 8 commits into from
May 12, 2023
Merged

GH-103082: Filter LINE events in VM, to simplify tool implementation. #104387

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4190fe7
Filter LINE events in VM, to simplify tool implementation.
markshannon May 10, 2023
6e8c98f
Merge branch 'main' into instrument-all-possible-lines
markshannon May 10, 2023
cc62dcb
Add news
markshannon May 10, 2023
5418580
Mark _PyInstrumentation_DISABLE as a legal static value.
markshannon May 10, 2023
1da7272
Merge branch 'main' into instrument-all-possible-lines
markshannon May 10, 2023
e76f241
Address review comments.
markshannon May 11, 2023
b8d6799
Merge branch 'main' into instrument-all-possible-lines
markshannon May 11, 2023
f9cf3db
Add a couple more comments.
markshannon May 11, 2023
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Add a couple more comments.
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@markshannon
markshannon committed May 11, 2023
commit f9cf3db6b9b88e2e3047f598e3635fc2e5e563af
2 changes: 2 additions & 0 deletions Python/ceval.c
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Expand Up @@ -801,6 +801,8 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, _PyInterpreterFrame *frame, int
}
if (_PyOpcode_Caches[original_opcode]) {
_PyBinaryOpCache *cache = (_PyBinaryOpCache *)(next_instr+1);
/* Prevent the underlying instruction from specializing
* and overwriting the instrumentation. */
INCREMENT_ADAPTIVE_COUNTER(cache->counter);
}
opcode = original_opcode;
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3 changes: 3 additions & 0 deletions Python/instrumentation.c
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Expand Up @@ -1108,6 +1108,9 @@ _Py_call_instrumentation_line(PyThreadState *tstate, _PyInterpreterFrame* frame,
int prev_line = _Py_Instrumentation_GetLine(code, prev_index);
if (prev_line == line) {
int prev_opcode = _PyCode_CODE(code)[prev_index].op.code;
/* RESUME and INSTRUMENTED_RESUME are needed for the operation of
* instrumentation, so must never be hidden by an INSTRUMENTED_LINE.
*/
if (prev_opcode != RESUME && prev_opcode != INSTRUMENTED_RESUME) {
goto done;
}
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0