sim: Don't add the NULL SimObject as a child of other SimObjects.
Change-Id: Ibdc48af8e5a461077f75d781cfd8191586c54115
Reviewed-on: https://gem5-review.googlesource.com/4846
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Gabe Black <gabeblack@google.com>
diff --git a/src/python/m5/SimObject.py b/src/python/m5/SimObject.py
index baeef73..cff818c 100644
--- a/src/python/m5/SimObject.py
+++ b/src/python/m5/SimObject.py
@@ -579,7 +579,8 @@
# object is not an orphan and can provide better error
# messages.
child.set_parent(cls, name)
- cls._children[name] = child
+ if not isNullPointer(child):
+ cls._children[name] = child
def _new_port(cls, name, port):
# each port should be uniquely assigned to one variable
@@ -1226,7 +1227,8 @@
# exercised without specialized testing.
self.clear_child(name)
child.set_parent(self, name)
- self._children[name] = child
+ if not isNullPointer(child):
+ self._children[name] = child
# Take SimObject-valued parameters that haven't been explicitly
# assigned as children and make them children of the object that
