8046715: Add a way to verify an extended set of command line options

Summary: Added arguments_ext.cpp to make place for initialization of extended features
Reviewed-by: sla, mgronlun

src/share/vm/runtime/arguments.cpp

@@ -2387,6 +2387,8 @@ bool Arguments::check_vm_args_consistency() {
     warning("The VM option CICompilerCountPerCPU overrides CICompilerCount.");
   }
 
+  status &= check_vm_args_consistency_ext();
+
   return status;
 }
 

src/share/vm/runtime/arguments.hpp

@@ -461,6 +461,7 @@ class Arguments : AllStatic {
   static void check_deprecated_gc_flags();
   // Check consistecy or otherwise of VM argument settings
   static bool check_vm_args_consistency();
+  static bool check_vm_args_consistency_ext();
   // Check stack pages settings
   static bool check_stack_pages();
   // Used by os_solaris

src/share/vm/runtime/arguments_ext.cpp

+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "runtime/arguments.hpp"
+
+bool Arguments::check_vm_args_consistency_ext() {
+  return true;
+}