--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/shared/jvmFlagConstraintsGC.hpp	Mon Apr 23 10:59:39 2018 -0500
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2015, 2018, 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.
+ *
+ */
+
+#ifndef SHARE_GC_SHARED_COMMANDLINEFLAGCONSTRAINTSGC_HPP
+#define SHARE_GC_SHARED_COMMANDLINEFLAGCONSTRAINTSGC_HPP
+
+#include "utilities/globalDefinitions.hpp"
+#include "utilities/macros.hpp"
+#if INCLUDE_ALL_GCS
+#include "gc/cms/jvmFlagConstraintsCMS.hpp"
+#include "gc/g1/jvmFlagConstraintsG1.hpp"
+#include "gc/parallel/jvmFlagConstraintsParallel.hpp"
+#endif
+
+/*
+ * Here we have GC arguments constraints functions, which are called automatically
+ * whenever flag's value changes. If the constraint fails the function should return
+ * an appropriate error value.
+ */
+
+JVMFlag::Error ParallelGCThreadsConstraintFunc(uint value, bool verbose);
+JVMFlag::Error ConcGCThreadsConstraintFunc(uint value, bool verbose);
+JVMFlag::Error YoungPLABSizeConstraintFunc(size_t value, bool verbose);
+JVMFlag::Error OldPLABSizeConstraintFunc(size_t value, bool verbose);
+JVMFlag::Error MinHeapFreeRatioConstraintFunc(uintx value, bool verbose);
+JVMFlag::Error MaxHeapFreeRatioConstraintFunc(uintx value, bool verbose);
+JVMFlag::Error SoftRefLRUPolicyMSPerMBConstraintFunc(intx value, bool verbose);
+JVMFlag::Error MarkStackSizeConstraintFunc(size_t value, bool verbose);
+JVMFlag::Error MinMetaspaceFreeRatioConstraintFunc(uintx value, bool verbose);
+JVMFlag::Error MaxMetaspaceFreeRatioConstraintFunc(uintx value, bool verbose);
+JVMFlag::Error InitialTenuringThresholdConstraintFunc(uintx value, bool verbose);
+JVMFlag::Error MaxTenuringThresholdConstraintFunc(uintx value, bool verbose);
+
+JVMFlag::Error MaxGCPauseMillisConstraintFunc(uintx value, bool verbose);
+JVMFlag::Error GCPauseIntervalMillisConstraintFunc(uintx value, bool verbose);
+JVMFlag::Error InitialBootClassLoaderMetaspaceSizeConstraintFunc(size_t value, bool verbose);
+JVMFlag::Error InitialHeapSizeConstraintFunc(size_t value, bool verbose);
+JVMFlag::Error MaxHeapSizeConstraintFunc(size_t value, bool verbose);
+JVMFlag::Error HeapBaseMinAddressConstraintFunc(size_t value, bool verbose);
+JVMFlag::Error NewSizeConstraintFunc(size_t value, bool verbose);
+JVMFlag::Error MinTLABSizeConstraintFunc(size_t value, bool verbose);
+JVMFlag::Error TLABSizeConstraintFunc(size_t value, bool verbose);
+JVMFlag::Error TLABWasteIncrementConstraintFunc(uintx value, bool verbose);
+JVMFlag::Error SurvivorRatioConstraintFunc(uintx value, bool verbose);
+JVMFlag::Error MetaspaceSizeConstraintFunc(size_t value, bool verbose);
+JVMFlag::Error MaxMetaspaceSizeConstraintFunc(size_t value, bool verbose);
+JVMFlag::Error SurvivorAlignmentInBytesConstraintFunc(intx value, bool verbose);
+
+// Internal
+JVMFlag::Error MaxPLABSizeBounds(const char* name, size_t value, bool verbose);
+
+#endif // SHARE_GC_SHARED_COMMANDLINEFLAGCONSTRAINTSGC_HPP