[3.10] bpo-43760: Ensure that older Cython generated code compiles under 3.10. by markshannon · Pull Request #28474 · python/cpython · GitHub
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[3.10] bpo-43760: Ensure that older Cython generated code compiles under 3.10. #28474

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[3.10] bpo-43760: Ensure that older Cython generated code compiles under 3.10. #28474

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f9c1b77
Add tstate.use_tracing as a copy of tstate.cframe->use_tracing to min…
markshannon Sep 20, 2021
6eb2c12
Move new field to end of struct for better binary compatibility.
markshannon Sep 21, 2021
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1 change: 1 addition & 0 deletions Include/cpython/pystate.h
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25 changes: 14 additions & 11 deletions Python/ceval.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5476,7 +5476,7 @@ call_trace(Py_tracefunc func, PyObject *obj,
if (tstate->tracing)
return 0;
tstate->tracing++;
tstate->cframe->use_tracing = 0;
tstate->use_tracing = tstate->cframe->use_tracing = 0;
if (frame->f_lasti < 0) {
frame->f_lineno = frame->f_code->co_firstlineno;
}
Expand All @@ -5486,8 +5486,8 @@ call_trace(Py_tracefunc func, PyObject *obj,
}
result = func(obj, frame, what, arg);
frame->f_lineno = 0;
tstate->cframe->use_tracing = ((tstate->c_tracefunc != NULL)
|| (tstate->c_profilefunc != NULL));
tstate->use_tracing = tstate->cframe->use_tracing =
((tstate->c_tracefunc != NULL) || (tstate->c_profilefunc != NULL));
tstate->tracing--;
return result;
}
Expand All @@ -5501,11 +5501,11 @@ _PyEval_CallTracing(PyObject *func, PyObject *args)
PyObject *result;

tstate->tracing = 0;
tstate->cframe->use_tracing = ((tstate->c_tracefunc != NULL)
|| (tstate->c_profilefunc != NULL));
tstate->use_tracing = tstate->cframe->use_tracing =
((tstate->c_tracefunc != NULL) || (tstate->c_profilefunc != NULL));
result = PyObject_Call(func, args, NULL);
tstate->tracing = save_tracing;
tstate->cframe->use_tracing = save_use_tracing;
tstate->use_tracing = tstate->cframe->use_tracing = save_use_tracing;
return result;
}

Expand Down Expand Up @@ -5556,15 +5556,17 @@ _PyEval_SetProfile(PyThreadState *tstate, Py_tracefunc func, PyObject *arg)
tstate->c_profilefunc = NULL;
tstate->c_profileobj = NULL;
/* Must make sure that tracing is not ignored if 'profileobj' is freed */
tstate->cframe->use_tracing = tstate->c_tracefunc != NULL;
tstate->use_tracing = tstate->cframe->use_tracing =
tstate->c_tracefunc != NULL;
Py_XDECREF(profileobj);

Py_XINCREF(arg);
tstate->c_profileobj = arg;
tstate->c_profilefunc = func;

/* Flag that tracing or profiling is turned on */
tstate->cframe->use_tracing = (func != NULL) || (tstate->c_tracefunc != NULL);
tstate->use_tracing = tstate->cframe->use_tracing =
(func != NULL) || (tstate->c_tracefunc != NULL);
return 0;
}

Expand Down Expand Up @@ -5597,16 +5599,17 @@ _PyEval_SetTrace(PyThreadState *tstate, Py_tracefunc func, PyObject *arg)
tstate->c_tracefunc = NULL;
tstate->c_traceobj = NULL;
/* Must make sure that profiling is not ignored if 'traceobj' is freed */
tstate->cframe->use_tracing = (tstate->c_profilefunc != NULL);
tstate->use_tracing = tstate->cframe->use_tracing =
(tstate->c_profilefunc != NULL);
Py_XDECREF(traceobj);

Py_XINCREF(arg);
tstate->c_traceobj = arg;
tstate->c_tracefunc = func;

/* Flag that tracing or profiling is turned on */
tstate->cframe->use_tracing = ((func != NULL)
|| (tstate->c_profilefunc != NULL));
tstate->use_tracing = tstate->cframe->use_tracing =
((func != NULL) || (tstate->c_profilefunc != NULL));

return 0;
}
Expand Down
1 change: 1 addition & 0 deletions Python/pystate.c
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Original file line number Diff line number Diff line change
Expand Up @@ -623,6 +623,7 @@ new_threadstate(PyInterpreterState *interp, int init)
tstate->recursion_headroom = 0;
tstate->stackcheck_counter = 0;
tstate->tracing = 0;
tstate->use_tracing = 0;
tstate->root_cframe.use_tracing = 0;
tstate->cframe = &tstate->root_cframe;
tstate->gilstate_counter = 0;
Expand Down
10 changes: 6 additions & 4 deletions Python/sysmodule.c
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