Skip to content

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

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
wants to merge 2 commits into from
Closed

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

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
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
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 1 addition & 0 deletions Include/cpython/pystate.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -148,6 +148,7 @@ struct _ts {
uint64_t id;

CFrame root_cframe;
int use_tracing;

/* XXX signal handlers should also be here */

Expand Down
25 changes: 14 additions & 11 deletions Python/ceval.c
View file
Open in desktop
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
View file
Open in desktop
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
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -253,7 +253,7 @@ sys_audit_tstate(PyThreadState *ts, const char *event,

/* Disallow tracing in hooks unless explicitly enabled */
ts->tracing++;
ts->cframe->use_tracing = 0;
ts->use_tracing = ts->cframe->use_tracing = 0;
while ((hook = PyIter_Next(hooks)) != NULL) {
_Py_IDENTIFIER(__cantrace__);
PyObject *o;
Expand All @@ -266,22 +266,24 @@ sys_audit_tstate(PyThreadState *ts, const char *event,
break;
}
if (canTrace) {
ts->cframe->use_tracing = (ts->c_tracefunc || ts->c_profilefunc);
ts->use_tracing = ts->cframe->use_tracing =
(ts->c_tracefunc || ts->c_profilefunc);
ts->tracing--;
}
PyObject* args[2] = {eventName, eventArgs};
o = _PyObject_FastCallTstate(ts, hook, args, 2);
if (canTrace) {
ts->tracing++;
ts->cframe->use_tracing = 0;
ts->use_tracing = ts->cframe->use_tracing = 0;
}
if (!o) {
break;
}
Py_DECREF(o);
Py_CLEAR(hook);
}
ts->cframe->use_tracing = (ts->c_tracefunc || ts->c_profilefunc);
ts->use_tracing = ts->cframe->use_tracing =
(ts->c_tracefunc || ts->c_profilefunc);
ts->tracing--;
if (_PyErr_Occurred(ts)) {
goto exit;
Expand Down