commit de4ae3d4869e88dda8bfbad24880cb398160a7a0
author Victor Stinner <victor.stinner@gmail.com> Sun Dec 04 22:59:09 2016 +0100
committer Victor Stinner <victor.stinner@gmail.com> Sun Dec 04 22:59:09 2016 +0100
tree b8c42842a31f408c9fe09993e19fba49d60b2dcf
parent c8d03187ff85326ab8b24af06f8a4e391365f42a

Backed out changeset b9c9691c72c5

Issue #28858: The change b9c9691c72c5 introduced a regression. It seems like
_PyObject_CallArg1() uses more stack memory than
PyObject_CallFunctionObjArgs().

Objects/unicodeobject.c

diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 8f6f6c6..1c2257e 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -4269,7 +4269,7 @@
     if (*exceptionObject == NULL)
         goto onError;
 
-    restuple = _PyObject_CallArg1(*errorHandler, *exceptionObject);
+    restuple = PyObject_CallFunctionObjArgs(*errorHandler, *exceptionObject, NULL);
     if (restuple == NULL)
         goto onError;
     if (!PyTuple_Check(restuple)) {
@@ -4368,7 +4368,7 @@
     if (*exceptionObject == NULL)
         goto onError;
 
-    restuple = _PyObject_CallArg1(*errorHandler, *exceptionObject);
+    restuple = PyObject_CallFunctionObjArgs(*errorHandler, *exceptionObject, NULL);
     if (restuple == NULL)
         goto onError;
     if (!PyTuple_Check(restuple)) {
@@ -6649,7 +6649,8 @@
     if (*exceptionObject == NULL)
         return NULL;
 
-    restuple = _PyObject_CallArg1(*errorHandler, *exceptionObject);
+    restuple = PyObject_CallFunctionObjArgs(
+        *errorHandler, *exceptionObject, NULL);
     if (restuple == NULL)
         return NULL;
     if (!PyTuple_Check(restuple)) {
@@ -8643,7 +8644,8 @@
     if (*exceptionObject == NULL)
         return NULL;
 
-    restuple = _PyObject_CallArg1(*errorHandler, *exceptionObject);
+    restuple = PyObject_CallFunctionObjArgs(
+        *errorHandler, *exceptionObject, NULL);
     if (restuple == NULL)
         return NULL;
     if (!PyTuple_Check(restuple)) {