* ada-lang.c (is_known_support_routine): Add explicit free of

'func_name' from find_frame_funname.
	(ada_unhandled_exception_name_addr_from_raise): Add cleanups
	for func_name from find_frame_funname.
	* python/py-frame.c (frapy_name): Add explicit free of
	'name' from find_frame_funname.
	* stack.c (find_frame_funname): Add comment explaining that
	funcp must be freed by the caller.
	Return copy of symbol names instead of pointers.
	(print_frame): Add a cleanup for 'funname' from
	find_frame_funname.
	* stack.h (find_frame_funname): Remove "const" from
	'funname' parameter.

gdb/python/py-frame.c

@@ -122,7 +122,7 @@ static PyObject *
 frapy_name (PyObject *self, PyObject *args)
 {
   struct frame_info *frame;
-  const char *name;
+  char *name = NULL;
   enum language lang;
   PyObject *result;
   volatile struct gdb_exception except;
@@ -133,10 +133,17 @@ frapy_name (PyObject *self, PyObject *args)
 
       find_frame_funname (frame, &name, &lang, NULL);
     }
+
+  if (except.reason < 0)
+    xfree (name);
+
   GDB_PY_HANDLE_EXCEPTION (except);
 
   if (name)
-    result = PyUnicode_Decode (name, strlen (name), host_charset (), NULL);
+    {
+      result = PyUnicode_Decode (name, strlen (name), host_charset (), NULL);
+      xfree (name);
+    }
   else
     {
       result = Py_None;