bpo-36710: Pass explicitly tstate in sysmodule.c (GH-14060)

* Replace global var Py_VerboseFlag with interp->config.verbose.
* Add _PyErr_NoMemory(tstate) function.
* Add tstate parameter to _PyEval_SetCoroutineOriginTrackingDepth()
  and move the function to the internal API.
* Replace _PySys_InitMain(runtime, interp)
  with _PySys_InitMain(runtime, tstate).

Python/ceval.c

@@ -4728,10 +4728,9 @@ PyEval_SetTrace(Py_tracefunc func, PyObject *arg)
 }
 
 void
-_PyEval_SetCoroutineOriginTrackingDepth(int new_depth)
+_PyEval_SetCoroutineOriginTrackingDepth(PyThreadState *tstate, int new_depth)
 {
     assert(new_depth >= 0);
-    PyThreadState *tstate = _PyThreadState_GET();
     tstate->coroutine_origin_tracking_depth = new_depth;
 }
 

Python/errors.c

@@ -547,9 +547,8 @@ PyErr_BadArgument(void)
 }
 
 PyObject *
-PyErr_NoMemory(void)
+_PyErr_NoMemory(PyThreadState *tstate)
 {
-    PyThreadState *tstate = _PyThreadState_GET();
     if (Py_TYPE(PyExc_MemoryError) == NULL) {
         /* PyErr_NoMemory() has been called before PyExc_MemoryError has been
            initialized by _PyExc_Init() */
@@ -560,6 +559,13 @@ PyErr_NoMemory(void)
     return NULL;
 }
 
+PyObject *
+PyErr_NoMemory(void)
+{
+    PyThreadState *tstate = _PyThreadState_GET();
+    return _PyErr_NoMemory(tstate);
+}
+
 PyObject *
 PyErr_SetFromErrnoWithFilenameObject(PyObject *exc, PyObject *filenameObject)
 {

Python/pylifecycle.c

@@ -899,6 +899,7 @@ pyinit_main(_PyRuntimeState *runtime, PyInterpreterState *interp)
     }
 
     /* Configure the main interpreter */
+    PyThreadState *tstate = _PyRuntimeState_GetThreadState(runtime);
     PyConfig *config = &interp->config;
 
     if (runtime->initialized) {
@@ -919,7 +920,7 @@ pyinit_main(_PyRuntimeState *runtime, PyInterpreterState *interp)
         return _PyStatus_ERR("can't initialize time");
     }
 
-    if (_PySys_InitMain(runtime, interp) < 0) {
+    if (_PySys_InitMain(runtime, tstate) < 0) {
         return _PyStatus_ERR("can't finish initializing sys");
     }
 
@@ -1456,7 +1457,7 @@ new_interpreter(PyThreadState **tstate_p)
         }
         Py_INCREF(interp->sysdict);
         PyDict_SetItemString(interp->sysdict, "modules", modules);
-        if (_PySys_InitMain(runtime, interp) < 0) {
+        if (_PySys_InitMain(runtime, tstate) < 0) {
             return _PyStatus_ERR("can't finish initializing sys");
         }
     }